diff options
| author | Matthew Sotoudeh <matthew@masot.net> | 2023-06-03 14:51:16 -0700 |
|---|---|---|
| committer | Matthew Sotoudeh <matthew@masot.net> | 2023-06-03 14:51:16 -0700 |
| commit | d8c82a8431b10de05ce5921d98fa7ec60ecf5df0 (patch) | |
| tree | dcebb9ba5964e11060e0659657844db1683bed5d | |
dump of labs
62 files changed, 57713 insertions, 0 deletions
diff --git a/.gitignore b/.gitignore new file mode 100644 index 0000000..565d164 --- /dev/null +++ b/.gitignore @@ -0,0 +1,2 @@ +build +.*.sw* @@ -0,0 +1,10 @@ +Labs I've written for classes + + - sat-chaff: implement a basic DPLL SAT solver, profile it, then optimize + it with the watched literals trick from Chaff + + - smt-symex: implement a bitblasting QF_ABV SMT solver and use it to build + a symbolic execution engine (builds on sat-chaff) + + - static-analysis: implement a mini static analysis pass that finds some + bugs in the Linux kernel diff --git a/sat-chaff/PRELAB.md b/sat-chaff/PRELAB.md new file mode 100644 index 0000000..98b7862 --- /dev/null +++ b/sat-chaff/PRELAB.md @@ -0,0 +1,71 @@ +# SAT/Symex+SMT Labs Prelab + +By Wednesday, we will make a symbolic execution (symex) engine for a simple +little "assembly language." Think of a symex engine as a tool that tries to +generate inputs to your program that cause it to execute a certain line. For +example, in this program: +``` +load 0 0 ; r0 = memory[r0] +immediate 1 10 ; r1 = 10 +branch_eq 0 1 2 ; if r0 == r1 goto l1 else goto l2 +l1: fail +l2: exit +``` +The symex engine will attempt to find initial registers & memory values that +cause the `fail` instruction to be reached. In this case, it will say setting +`r0 = 0`, `memory[0] = 10` does the trick. + +Symex engines are built on SMT solvers which are built on SAT solvers. +Roughly, SAT solvers are symex for when you have no branching, no memory, and +finitely-many boolean registers. The only operations allowed are "and," "or," +and "not." SMT solvers add support for int (non-boolean) values and memory. +Symex engines add support for branching, loops, and some assembly/code syntax. + +### Monday: SAT Solver Prelab +SAT solvers solve _boolean constraints_. For example, you can say "find an +assignment for $x$, $y$, $z$ such that: (i) $z$ is true, (ii) if $x$ and $y$ +are true then $z$ is false, and (iii) either $x$ or $y$ is true." + +In order to keep SAT solvers as simple and fast as possible, the input language +describing constraints for most SAT solvers is pretty restrictive. Here's an +example: +``` +c Amazing comment!! +p cnf 3 3 +3 0 +-1 -2 -3 0 +1 2 0 +``` +- Initial lines can start with `c` for `c`omments. +- The `p` (for `p`roblem?) line tells us how many variables and how many + clauses (remaining lines). +- The constraints are given in AND of OR form; each line represents an OR and + every line has to be satisfied (AND). +- Every line ends in `0` (variables are numbered starting from `1`). +- `n` means that variable should be true, `-n` means false. +- The basic idea is to assign each variable true or false so that every line + "predicts" at least one variable's true/falseness correctly. +In the above example, line `3 0` means "variable 3 should be true," the next +line means "either variable 1 is false, or variable 2 is false, or variable 3 +is false," and the last line means "either variable 1 is true or variable 2 is +true." If you think about it, those constraints are exactly the same as (i), +(ii), (iii) from earlier. + +You can plug this in to minsat (or the [web +version](http://logicrunch.it.uu.se:4096/~wv/minisat/)) to get a solution: +``` +SATISFIABLE + +-1 2 3 0 +``` +This means there is a solution, namely, variable 1 false, variable 2 true, and +variable 3 true. + +We'll be writing our own version of minisat, including a few hacks to speed it +up. We'll be basing our version on the SAT solver called Chaff, which you +should read about +[here](https://www.princeton.edu/~chaff/publication/DAC2001v56.pdf) +(specifically sections 1 and 2!). + +### SMT/Symex Prelab +TODO diff --git a/sat-chaff/README.md b/sat-chaff/README.md new file mode 100644 index 0000000..1fb5a92 --- /dev/null +++ b/sat-chaff/README.md @@ -0,0 +1,189 @@ +# Chaff/SAT Solver Lab + +In this lab we'll be reproducing the Chaff paper. In particular, we'll focus on +the following two claims: +1. In a normal SAT solver, around 90% of the time is spent in boolean + constraint propagation. +2. Using watched literals instead of a counter can achieve a ~5--10x speedup + over the basic DP SAT solver algorithm. + +There isn't a lot of code to write in the first place. My version of part 1 +ends up with ~150 loc (~25 lines over the starter code) and my version of part +2 end sup with ~190 loc (~30 lines over the start code). But there are a fairly +large number of interacting data structures (mostly simple heap arrays) so it +may longer than expected. If you'd like more of a challenge, try starting all +the functions from scratch or try implementing some of the remaining tricks in +the "What's Next?" section below! + +## Part 1: Implement & profile the basic DP algorithm +#### Implementation +Implement the `assert(!"Implement me!");` locations in `basic.c`. The comments +should instruct you on what to do. I would highly recommend first reading the +comments in the data structures section. + +The program accepts DIMACS input on `stdin`. To run this on a file +`foo.dimacs`, use: +``` +$ cat foo.dimacs | ./basic +``` + +#### Debugging +Note that SAT solvers are surprisingly difficult to implement correctly. +If you make a mistake it's liable to keep getting the right answer on 90% of +inputs, or all inputs that don't repeat literals in a clause, or ... + +To counteract this, we're going to use the same cross checking approach we've +used forever in this class: observe some part of the execution that is supposed +to be invariant to our optimizations, and compare multiple implementations with +respect to that observation. + +The obvious choice for observation is sat vs. unsat, but that's too coarse. +Instead, we'll print out the sequence of decisions and compare those. This is +already done for you, you don't need to modify anything (see the call to +`xprintf` in `decide()`). + +To cross-check your basic implementation against mine, try: +``` +./cross_check.sh basic_vs_matthew +``` + +To help with debugging, you can uncomment the `-fsanitize=address` line in the +`Makefile` and `make -B` to build with sanitizers. But make sure to re-comment +& re-build before profiling! + +#### Profiling +The Chaff paper motivates their watched literals hack by the following +observation: "In practice, for most SAT problems, a major potion (greater than +90% in most cases) of the solvers' run time is spent in the BCP process. +Therefore, an efficient BCP engine is key to any SAT solver." + +Let's see if we can reproduce this claim. Install `perf` and run the following: +``` +$ make -B +$ cat ../test_inputs/p8.dimacs | sudo perf record ./basic +$ sudo perf report +``` +You should see in the resulting report that BCP takes about 85% of the time, +pretty close to their claim! + +Now that we're convinced of the problem, let's try out their solution. + +## Part 2: Implement the watched literals optimization +Now we'll be implementing the watched literals optimization. Whereas before +`LIT_TO_CLAUSES[lit]` was an array of all clauses containing the literal `lit`, +now `LIT_TO_CLAUSES[lit]` will be a linked list of only those clauses that are +*watching* the literal `lit`. As in the paper, every clause will be watching +exactly two literals at a time. We're using a linked list to make it updating +which literal is being watched constant-time. + +Your first task is to implement `init_watcher`, which is called by `main()` to +initialize `LIT_TO_CLAUSES` and the watched literals on the clause struct +(replacing `n_zeros`). + +We also have a new `BCP_LIST` data structure. The idea is that `set_literal` +will now immediately identify implied literals, and queue them up in `BCP_LIST` +to be assigned during the `bcp()` phase. You'll notice that `bcp()` has gotten +a _lot_ simpler --- it just does what `set_literal` queued up for it! + +Your second task is to implement `queue_bcp` and `dequeue_bcp`, which are +exactly what they sound like (except, er, it's probably faster to just do a +stack not a queue! doesn't matter for correctness, but I like the sound of the +word "queue" better...). + +The real big task is now implementing `set_literal`. This is where almost all +the serious work of the watched-literals-optimized version is done. This one +function is basically going to do the work of both `set_literal` and `bcp` from +`basic.c`. + +...but, payoff from that is we no longer have to do _anything_ non-trivial in +`unset_latest_assignment`! We literally get to just delete all that code! + +You should be able to copy/paste your `decide()` from `basic.c`. +`resolveConflict()` can also be _almost_ the same --- just remember now you +also have to clear out the pending BCP list! + +After that, you should be good to go. + +To cross-check your basic implementation against your optimized implementation, +try: +``` +./cross_check.sh basic_vs_fast +``` +Note that this cross-checks on a fairly hefty input, and the xcheck logs can be +pretty large (tens of megabytes). So it may take significantly longer to run in +xcheck mode than directly. + +## What's Left? +If you try comparing the time to solve, say, `p9.dimacs` with your `./fast` and +`minisat` you'll find something a bit wacky: our `./fast` is actually faster +than `minisat`! + +Why is this? I don't _think_ it's because of a bug in our solver; if you +compare the number of decisions made (in `xcheck` mode) to the number reported +by `minisat`, it's pretty comparable. + +I think what's happening is much simpler: the pigeonhole formulae (like +`p9.dimacs`) are sort of the "worst possible thing" for SAT solvers. Minisat +has a bunch of extra tricks that try to speed things up in the "happy case," +but none of them are useful for pigeonhole formulae. Instead, they just take up +time without actually improving the search at all. This is a delicate balance, +where some tricks will speed up problems X, Y, Z but slow down A, B, C. More of +an art than a science, etc. + +You can confirm this by finding inputs, like `aim-100.dimacs`, that complete +super fast on minisat but are terrible in our solver. + +What are those extra tricks? A few things: +1. Conflict-driven clause learning (CDCL). Right now, if we get a conflict we + just backtrack to the latest decision not "tried both ways." In essence, all + we learn is that that exact sequence of decisions cannot work. There are + techniques that can spend a little extra time analyzing the conflict in + detail and figure out a new constraint that rules out not just that exact + sequence of decisions, but perhaps other ones as well. More concretely, + imagine some formula where you can prove there is no solution with `1` and + `3` both set to false. The solver may end up in a decision stack like + `[-1,-2,-3]` and then get a conflict. Our current implementation would + backtrack repeatedly, trying `[-1,-2,3]`, `[-1,2,-3]`, `[-1,2,3]`, etc. + Meanwhile, a CDCL implementation would _analyze the conflict_ in detail, and + (if we're lucky) determine that `-1`, `-3` is the "core" of the conflict. It + then produces a new clause that rules this out, i.e., `-1 3` (or `-3 1`). + With this new clause added to the formula, the solver will never even + consider assignment `[-1,2,-3]`, because the `-1` will BCP in `-3`. This + lets us prune our search space more aggressively than just standard + backtracking. A nice interactive explanation of this process is given here: + https://cse442-17f.github.io/Conflict-Driven-Clause-Learning/ +2. In a basic CDCL solver, every time we reach a conflict we actually add a new + clause to the clause list. This is nice because new clauses help prune our + search space (in other words, we get more opportunities for BCP instead of + having to do decide). But it can get messy if we have _way_ too many clauses + (most of them are probably not that useful any more, if we've already + "passed out of that area of the search space"). _Clause deletion heuristics_ + tell us which clauses are probably OK to delete/clean out. See + https://webdocs.cs.ualberta.ca/~mdsolimu/CP19_GluVar_Final.pdf for a + discussion of one approach. +3. Decision heuristics. In our `decide()`, we always just take the + numerically-next unassigned variable and try assigning it to false. This is + not a great idea. If a 100 clauses have that variable in positive form and + only one has it in negative form, it's probably a good idea to try and set + it to true first, as that "gets out of the way" the most clauses at once. + The Chaff paper describes a heuristic called VSIDS that they claim is fast + and pretty good. I bet you could probably implement it with another 100 + lines of code or so. +4. All of the above modifications make the solver very, very stateful. During + the solver run the solver is learning things about the formula that it + didn't know when it started (e.g., VSIDS basically approximates which + variables are more likely to be true vs. false in a solution). Intuitively, + it's possible that you made some bad decisions in the beginning of the solve + that got you stuck in an unproductive part of the search space. But maybe if + you had known all that information early on in the solve, you would have + made better decisions that could have gotten you more quickly into a better + part of the search space. The trick to take advantage of this is to just + randomly restart the solver, but keep some of the information learned during + this attempt around (e.g., the VSIDS counts). +5. I don't think many common solvers actually do this, but another cool one is + _symmetry breaking_. The basic idea is that a lot of problems are symmetric; + think about a formula involving something like `x^2 + y^2`. Any solution + `(x,y)` can be swapped to `(y,x)` to form an equally-good solution. In + theory, then, we can cut down the set of possible solutions we have to think + about by only considering those where `x <= y`. This is called "symmetry + breaking." diff --git a/sat-chaff/code/.gitignore b/sat-chaff/code/.gitignore new file mode 100644 index 0000000..44f88c8 --- /dev/null +++ b/sat-chaff/code/.gitignore @@ -0,0 +1,2 @@ +basic +fast diff --git a/sat-chaff/code/Makefile b/sat-chaff/code/Makefile new file mode 100644 index 0000000..5a37921 --- /dev/null +++ b/sat-chaff/code/Makefile @@ -0,0 +1,12 @@ +.PHONY: clean all + +CFLAGS += -g +CFLAGS += -O3 +# CFLAGS += -fsanitize=address + +all: basic fast +fast: fast.c +basic: basic.c + +clean: + rm -f basic fast xcheck_*.output perf.* diff --git a/sat-chaff/code/basic.c b/sat-chaff/code/basic.c new file mode 100644 index 0000000..3d55d5b --- /dev/null +++ b/sat-chaff/code/basic.c @@ -0,0 +1,250 @@ +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <assert.h> + +#define append_field(OBJ, FIELD) (*({ \ + (OBJ).FIELD = realloc((OBJ).FIELD, (++((OBJ).n_##FIELD)) * sizeof((OBJ).FIELD[0])); \ + (OBJ).FIELD + ((OBJ).n_##FIELD - 1); \ +})) + +/****** GLOBAL DATA STRUCTURES ******/ + +// Any sequence of events you want to cross-check across the basic & optimized +// solvers can be logged by calling xprintf. It will only log if the LOG_XCHECK +// flag is set by main(), i.e., if the user passes an argument. +int LOG_XCHECK = 0; +#define xprintf(...) { if (LOG_XCHECK) { fprintf(stderr, __VA_ARGS__); } } + +// The number of variables and clauses. This is specified by the "p cnf ..." +// line of the input. +unsigned N_VARS = 0, N_CLAUSES = 0; + +// Each clause is a list of literals, along with a count of the number of +// literals set to zero in the current partial assignment. The clause is +// implied once n_zeros == (n_lits - 1) and falsified if n_zeros == n_lits. +struct clause { + int *literals, n_literals; + int n_zeros; +}; +struct clause *CLAUSES = NULL; + +// The current partial assignment is a simple map from var_id -> assignment. +enum assignment { + UNASSIGNED = -1, + FALSE = 0, + TRUE = 1, +}; +enum assignment *ASSIGNMENT = NULL; + +// We maintain a decision stack that logs every time we assign a variable & +// why. In the Chaff paper a distinction is made between "decisions" and +// "assignments", the latter being assignments as a result of BCP. For us, the +// only difference will be the decision_type. +enum decision_type { + IMPLIED = 0, + TRIED_ONE_WAY = 1, + TRIED_BOTH_WAYS = 2, +}; +struct decision { + unsigned var; + enum decision_type type; +}; +struct decision *DECISION_STACK = NULL; +unsigned N_DECISION_STACK = 0; + +// We maintain a list of literal -> clauses having that literal. For the basic +// implementation, these lists don't need to be changed after initialization so +// we'll just use a simple heap array. +struct clause_list { + struct clause **clauses; + int n_clauses; +}; +struct clause_list *LIT_TO_CLAUSES = NULL; + +/****** HELPER METHODS ******/ + +// LIT_TO_CLAUSES maps literals -> ids. This converts a literal to an index +// into that map. Basically, the ordering goes -1, 1, -2, 2, ... +int literal_to_id(int literal) { + return (2 * abs(literal)) + (literal > 0); +} + +// Uses literal_to_id to index into LIT_TO_CLAUSES +struct clause_list *clauses_touching(int literal) { + return LIT_TO_CLAUSES + literal_to_id(literal); +} + +// Absolute value, used for turning a literal into a variable id. +int abs(int x) { return (x < 0) ? -x : x; } + +int is_literal_true(int lit) { + int var = abs(lit); + return ASSIGNMENT[var] != UNASSIGNED && ASSIGNMENT[var] == (lit > 0); +} + +// Called when a solution is found +int satisfiable() { + printf("SAT\n"); + for (int i = 1; i < N_VARS; i++) + printf("%d ", is_literal_true(i) ? i : -i); + printf("\n"); + return 0; +} + +// Called when it is proved that no solution exists +int unsatisfiable() { printf("UNSAT\n"); return 0; } + +/****** KEY OPERATIONS ******/ + +// Attempt to assign the given literal. Then update all the n_zeros counters. +// If this assignment causes a conflict (i.e., for some clause n_zeros == +// n_literals), this method will return 0. Otherwise it will return 1. +int set_literal(int literal, enum decision_type type) { + int var = abs(literal); + assert(ASSIGNMENT[var] == UNASSIGNED); + // Update the main assignment vector + ASSIGNMENT[var] = literal > 0; + // And add a new node on the decision stack. + DECISION_STACK[N_DECISION_STACK].var = var; + DECISION_STACK[N_DECISION_STACK++].type = type; + + // Update clause counters, check if any is completely false + assert(!"Implement me!"); +} + +// Undo the latest assignment on the decision stack. Then update all the +// n_zeros counters. Note that undoing an assignment can never cause a new +// conflict, so we don't need to report anything. +void unset_latest_assignment() { + // Pop a node off the decision stack + unsigned var = DECISION_STACK[--N_DECISION_STACK].var; + int literal = ASSIGNMENT[var] ? var : -var; + + // Update the partial assignment + ASSIGNMENT[var] = UNASSIGNED; + + // Iterate over the clauses containing -literal and decrement their + // n_zeros since this literal is no longer set. + assert(!"Implement me!"); +} + +/****** DP METHODS ******/ + +// From the paper: "The operation of decide() is to select a variable that is +// not currently assigned, and give it a value. This variable assignment is +// referred to as a decision. As each new decision is made, a record of that +// decision is pushed onto the decision stack. This function will return false +// if no unassigned variables remain and true otherwise." +int decide() { + // Iterate over variables until we find an unassigned one, placing it in v + // (or return 0 if none is found). + int v; + assert(!"Implement me!"); + + // Otherwise, try setting it false. Note this should never cause a + // conflict, otherwise it should have been BCP'd. + assert(set_literal(-v, TRIED_ONE_WAY)); + + // Log this decision for xcheck. + xprintf("Decide: %d\n", -v); + return 1; +} + +// From the paper: "The operation of bcp() ... is to identify any variable +// assignments required by the current variable state to satisfy f. ... if a +// clause consists of only literals with value 0 and one unassigned literal, +// then that unassigned literal must take on a value of 1 to make f sat. ... +// In the pseudo-code from above, bcp() carries out BCP transitively until +// either there are no more implications (in which case it returns true) or a +// conflict is produced (in which case it returns false)." +int bcp() { + int any_change = 0; + for (size_t i = 0; i < N_CLAUSES; i++) { + struct clause *clause = CLAUSES + i; + if ((clause->n_zeros + 1) != clause->n_literals) continue; + + // At this point, the clause is either satisfied or implied. For each + // literal in the clause: + // - If any literal is set to true, this clause is already sat so we + // don't need to do anything. + // - Otherwise, if we find a literal that is unset, try to set it. If + // setting it causes a conflict, return 0. Otherwise, record that + // there was a change and go on to the next clause. + assert(!"Implement me!"); + } + + return any_change ? bcp() : 1; +} + +// From the paper: "... to deal with a conflict, we can just undo all those +// implications, flip the value of the decision assignment, and allow BCP to +// then proceed as normal. If both values have already been tried for this +// decision, then we backtrack through the decision stack until we encounter a +// decision that has not been tried both ways, and proceed from there in the +// manner described above. ... If no decision can be found which has not been +// tried both ways, that indicates that f is not satisfiable." +int resolveConflict() { + // Unwind the decision stack by calling unset_latest_assignment() until we + // find a decision that is only TRIED_ONE_WAY. + // If you have unwinded the entire decision stack, return 0 (the formula is + // unsat!) + assert(!"Implement me!"); + + // Otherwise, take that decision and flip it: + unsigned var = DECISION_STACK[N_DECISION_STACK - 1].var; + + int new_value = !ASSIGNMENT[var]; + unset_latest_assignment(); + set_literal(new_value ? var : -var, TRIED_BOTH_WAYS); + + return 1; +} + +int main(int argc, char **argv) { + LOG_XCHECK = argc > 1; + // Read comment lines at the start. + for (char c; (c = getc(stdin)) == 'c';) + while (getc(stdin) != '\n'); + + assert(scanf(" cnf %u %u\n", &N_VARS, &N_CLAUSES) == 2); + N_VARS++; + + ASSIGNMENT = malloc(N_VARS * sizeof(ASSIGNMENT[0])); + memset(ASSIGNMENT, -1, N_VARS * sizeof(ASSIGNMENT[0])); + + DECISION_STACK = calloc(N_VARS, sizeof(DECISION_STACK[0])); + + CLAUSES = calloc(N_CLAUSES, sizeof(struct clause)); + + LIT_TO_CLAUSES = calloc(N_VARS * 2, sizeof(LIT_TO_CLAUSES[0])); + + for (size_t i = 0; i < N_CLAUSES; i++) { + int literal = 0; + for (assert(scanf("%d ", &literal)); literal; assert(scanf("%d ", &literal))) { + // Dedup any repeated literals in the clause. + int repeat = 0; + for (size_t j = 0; j < CLAUSES[i].n_literals && !repeat; j++) + repeat = (CLAUSES[i].literals[j] == literal); + if (repeat) continue; + + // Append to the clause's literal list. + append_field(CLAUSES[i], literals) = literal; + + // Append to the list of clauses touching this literal. Hint: use + // clauses_touching and append! + assert(!"Implement me"); + } + } + + // Basic DP from the Chaff paper: + if (!bcp()) return unsatisfiable(); // needed to handle unit clauses + while (1) { + if (!decide()) + return satisfiable(); + + while (!bcp()) + if (!resolveConflict()) + return unsatisfiable(); + } +} diff --git a/sat-chaff/code/cross_check.sh b/sat-chaff/code/cross_check.sh new file mode 100755 index 0000000..40818d8 --- /dev/null +++ b/sat-chaff/code/cross_check.sh @@ -0,0 +1,16 @@ +#!/bin/sh + +make -B + +if [ "$1" = "basic_vs_matthew" ] ; then + in_file=../test_inputs/p7.dimacs + cat $in_file | (./basic xcheck 2> xcheck_basic.output) + diff xcheck_basic.output ../matthew_output/xcheck_p7.output +fi + +if [ "$1" = "basic_vs_fast" ] ; then + in_file=../test_inputs/p9.dimacs + cat $in_file | (./basic xcheck 2> xcheck_basic.output) + cat $in_file | (./fast xcheck 2> xcheck_fast.output) + diff xcheck_basic.output xcheck_fast.output +fi diff --git a/sat-chaff/code/fast.c b/sat-chaff/code/fast.c new file mode 100644 index 0000000..09735c1 --- /dev/null +++ b/sat-chaff/code/fast.c @@ -0,0 +1,307 @@ +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <assert.h> + +#define append_field(OBJ, FIELD) (*({ \ + (OBJ).FIELD = realloc((OBJ).FIELD, (++((OBJ).n_##FIELD)) * sizeof((OBJ).FIELD[0])); \ + (OBJ).FIELD + ((OBJ).n_##FIELD - 1); \ +})) + +/****** GLOBAL DATA STRUCTURES ******/ + +// Any sequence of events you want to cross-check across the basic & optimized +// solvers can be logged by calling xprintf. It will only log if the LOG_XCHECK +// flag is set by main(), i.e., if the user passes an argument. +int LOG_XCHECK = 0; +#define xprintf(...) { if (LOG_XCHECK) { fprintf(stderr, __VA_ARGS__); } } + +// The number of variables and clauses. This is specified by the "p cnf ..." +// line of the input. +unsigned N_VARS = 0, N_CLAUSES = 0; + +// Each clause is a list of literals, along with two of them that are currently +// being watched. Notice there is no counter here! +struct clause { + int *literals, n_literals; + int watching[2]; +}; +struct clause *CLAUSES = NULL; + +// The current partial assignment is a simple map from var_id -> assignment. +enum assignment { + UNASSIGNED = -1, + FALSE = 0, + TRUE = 1, +}; +enum assignment *ASSIGNMENT = NULL; + +// We maintain a decision stack that logs every time we assign a variable & +// why. In the Chaff paper a distinction is made between "decisions" and +// "assignments", the latter being assignments as a result of BCP. For us, the +// only difference will be the decision_type. +enum decision_type { + IMPLIED = 0, + TRIED_ONE_WAY = 1, + TRIED_BOTH_WAYS = 2, +}; +struct decision { + unsigned var; + enum decision_type type; +}; +struct decision *DECISION_STACK = NULL; +unsigned N_DECISION_STACK = 0; + +// In this implementation instead of tracking literal -> clauses containing +// that literal, we only track literal -> clauses *watching* that literal. We +// need to modify this during the solve, so we'll use a linked list instead of +// an array. +struct clause_list { + struct clause *clause; + struct clause_list *next; +}; +struct clause_list **LIT_TO_CLAUSES = NULL; + +// Here we track the list of literal implications discovered when visiting +// clauses. We represent this in two ways, a direct list (BCP_LIST, N_BCP_LIST) +// of the clauses and a bool vector IS_BCP_LISTED to determine if a given +// literal is already in the list. +int *BCP_LIST = NULL; +unsigned N_BCP_LIST = 0; +char *IS_BCP_LISTED = NULL; + +/****** HELPER METHODS ******/ + +// LIT_TO_CLAUSES maps literals -> ids. This converts a literal to an index +// into that map. Basically, the ordering goes -1, 1, -2, 2, ... +int literal_to_id(int literal) { + return (2 * abs(literal)) + (literal > 0); +} + +// Uses literal_to_id to index into LIT_TO_CLAUSES +struct clause_list **clauses_watching(int literal) { + return LIT_TO_CLAUSES + literal_to_id(literal); +} + +// Absolute value, used for turning a literal into a variable id. +int abs(int x) { return (x < 0) ? -x : x; } + +int is_literal_true(int lit) { + int var = abs(lit); + return ASSIGNMENT[var] != UNASSIGNED && ASSIGNMENT[var] == (lit > 0); +} + +// Called when a solution is found +int satisfiable() { + printf("SAT\n"); + for (int i = 1; i < N_VARS; i++) + printf("%d ", is_literal_true(i) ? i : -i); + printf("\n"); + return 0; +} + +// Called when it is proved that no solution exists +int unsatisfiable() { printf("UNSAT\n"); return 0; } + +// Specify the @which'th watched literal for clause CLAUSES[clause_i]. Called +// by main(). +void init_watcher(int clause_i, int which, int literal) { + // Set watching[which] = literal on clause clause_i, then prepend the + // corresponding watching node to the correct LIT_TO_CLAUSES list. + assert(!"Implement me!"); +} + +// Add a literal to the BCP list. +void queue_bcp(int literal) { + // Append the literal to BCP_LIST, if it is not already in the list. Don't + // forget you can use IS_BCP_LISTED as a bool vector version of BCP_LIST. + assert(!"Implement me!"); +} + +// Pop a literal from the BCP list. +int dequeue_bcp() { + // Pop a literal off of BCP_LIST and return it. Don't forget to update + // IS_BCP_LISTED. + assert(!"Implement me!"); +} + +/****** KEY OPERATIONS ******/ + +// Attempt to assign the given literal. Any clauses that are watching -lit get +// visited and processed. +int set_literal(int literal, enum decision_type type) { + int var = abs(literal); + // Update the main assignment vector + ASSIGNMENT[var] = literal > 0; + // And add a new node on the decision stack. + DECISION_STACK[N_DECISION_STACK].var = var; + DECISION_STACK[N_DECISION_STACK++].type = type; + + // Visit any clauses that contain a literal now made false. + for (struct clause_list **w = clauses_watching(-literal); *w;) { + struct clause *clause = (*w)->clause; + int watch_id = (clause->watching[0] == -literal) ? 0 : 1; + int other_watch = clause->watching[!watch_id]; + int new_watch_lit = 0; + + // Look for an unwatched literal not set to zero in this clause, + // placing it in new_watch_lit (or set new_watch_lit = 0 if all + // literals are either watched or zero). + assert(!"Implement me"); + + if (new_watch_lit) { + // Switch the watcher to be watching this new literal instead. + // Note: we need to change both the clause struct itself as well as + // move its watcher element onto the correct linked list in + // LIT_TO_CLAUSES. + assert(!"Implement me"); + } else { + // No other non-zero literal was found in the clause. This is a + // conflict if the other watched literal is zero, else it is an + // implication we need to BCP. + if (is_literal_true(-other_watch)) { + // CONFLICT + return 0; // trigger a resolution. + } else if (is_literal_true(other_watch)) { + // This clause is already sat, don't have to do anything. + } else { + // BCP IMPLICATION, tell bcp() to set other_watch to true. + queue_bcp(other_watch); + } + w = &((*w)->next); + } + } + return 1; +} + +// Undo the latest assignment on the decision stack. Then update all the +// n_zeros counters. Note that undoing an assignment can never cause a new +// conflict, so we don't need to report anything. +void unset_latest_assignment() { + // Pop a node off the decision stack + unsigned var = DECISION_STACK[--N_DECISION_STACK].var; + // Update the partial assignment + ASSIGNMENT[var] = UNASSIGNED; + // No longer need to update any counters or watched literals! +} + +/****** DP METHODS ******/ + +// From the paper: "The operation of decide() is to select a variable that is +// not currently assigned, and give it a value. This variable assignment is +// referred to as a decision. As each new decision is made, a record of that +// decision is pushed onto the decision stack. This function will return false +// if no unassigned variables remain and true otherwise." +int decide() { + // Iterate over variables until we find an unassigned one, placing it in v + // (or return 0 if none is found). This can probably be exactly the same as + // in basic.c. + int v; + assert(!"Implement me!"); + + // Otherwise, try setting it false. Note this should never cause a + // conflict, otherwise it should have been BCP'd. + assert(set_literal(-v, TRIED_ONE_WAY)); + + // Log this decision for xcheck. + xprintf("Decide: %d\n", -v); + return 1; +} + +// From the paper: "The operation of bcp() ... is to identify any variable +// assignments required by the current variable state to satisfy f. ... if a +// clause consists of only literals with value 0 and one unassigned literal, +// then that unassigned literal must take on a value of 1 to make f sat. ... +// In the pseudo-code from above, bcp() carries out BCP transitively until +// either there are no more implications (in which case it returns true) or a +// conflict is produced (in which case it returns false)." +int bcp() { + while (N_BCP_LIST) { + if (!set_literal(dequeue_bcp(), IMPLIED)) + return 0; + } + return 1; +} + +// From the paper: "... to deal with a conflict, we can just undo all those +// implications, flip the value of the decision assignment, and allow BCP to +// then proceed as normal. If both values have already been tried for this +// decision, then we backtrack through the decision stack until we encounter a +// decision that has not been tried both ways, and proceed from there in the +// manner described above. ... If no decision can be found which has not been +// tried both ways, that indicates that f is not satisfiable." +int resolveConflict() { + // Clear the pending BCP list (don't forget IS_BCP_LISTED!), then use + // unset_latest_assignment() to unwind the decision stack until we find a + // decision that is only TRIED_ONE_WAY. If no such decision is found, + // return 0. + assert(!"Implement me!"); + + // Otherwise, take that decision and flip it: + unsigned var = DECISION_STACK[N_DECISION_STACK - 1].var; + + int new_value = !ASSIGNMENT[var]; + unset_latest_assignment(); + set_literal(new_value ? var : -var, TRIED_BOTH_WAYS); + + return 1; +} + +int main(int argc, char **argv) { + LOG_XCHECK = argc > 1; + // Read comment lines at the start. + for (char c; (c = getc(stdin)) == 'c';) + while (getc(stdin) != '\n'); + + assert(scanf(" cnf %u %u\n", &N_VARS, &N_CLAUSES) == 2); + N_VARS++; + + ASSIGNMENT = malloc(N_VARS * sizeof(ASSIGNMENT[0])); + memset(ASSIGNMENT, -1, N_VARS * sizeof(ASSIGNMENT[0])); + + DECISION_STACK = calloc(N_VARS, sizeof(DECISION_STACK[0])); + + CLAUSES = calloc(N_CLAUSES, sizeof(struct clause)); + + LIT_TO_CLAUSES = calloc(N_VARS * 2, sizeof(LIT_TO_CLAUSES[0])); + + BCP_LIST = calloc(2 * N_VARS, sizeof(BCP_LIST[0])); + IS_BCP_LISTED = calloc(2 * N_VARS, sizeof(IS_BCP_LISTED[0])); + + for (size_t i = 0; i < N_CLAUSES; i++) { + int literal = 0; + for (assert(scanf("%d ", &literal)); literal; assert(scanf("%d ", &literal))) { + // Dedup any repeated literals in the clause. + int repeat = 0; + for (size_t j = 0; j < CLAUSES[i].n_literals && !repeat; j++) + repeat = (CLAUSES[i].literals[j] == literal); + if (repeat) continue; + + // Append to the clause's literal list. + append_field(CLAUSES[i], literals) = literal; + } + } + + for (size_t i = 0; i < N_CLAUSES; i++) { + if (!CLAUSES[i].n_literals) return unsatisfiable(); + if (CLAUSES[i].n_literals == 1) { + // If a clause has only one literal, it must be set. + queue_bcp(CLAUSES[i].literals[0]); + } else { + // Watch the first 2 literals. + init_watcher(i, 0, CLAUSES[i].literals[0]); + init_watcher(i, 1, CLAUSES[i].literals[1]); + } + } + + // Basic DP from the Chaff paper: + if (!bcp()) return unsatisfiable(); // needed to handle unit clauses + while (1) { + if (!decide()) + return satisfiable(); + + while (!bcp()) + if (!resolveConflict()) + return unsatisfiable(); + } +} diff --git a/sat-chaff/matthew_output/xcheck_p5.output b/sat-chaff/matthew_output/xcheck_p5.output new file mode 100644 index 0000000..7cdf9e7 --- /dev/null +++ b/sat-chaff/matthew_output/xcheck_p5.output @@ -0,0 +1,375 @@ +Decide: -1 +Decide: -2 +Decide: -3 +Decide: -4 +Decide: -6 +Decide: -7 +Decide: -8 +Decide: -11 +Decide: -12 +Decide: -16 +Decide: -13 +Decide: -16 +Decide: -12 +Decide: -13 +Decide: -17 +Decide: -9 +Decide: -11 +Decide: -12 +Decide: -16 +Decide: -14 +Decide: -16 +Decide: -12 +Decide: -14 +Decide: -17 +Decide: -11 +Decide: -8 +Decide: -9 +Decide: -11 +Decide: -13 +Decide: -16 +Decide: -14 +Decide: -16 +Decide: -13 +Decide: -14 +Decide: -18 +Decide: -11 +Decide: -9 +Decide: -11 +Decide: -7 +Decide: -8 +Decide: -9 +Decide: -12 +Decide: -13 +Decide: -17 +Decide: -14 +Decide: -17 +Decide: -13 +Decide: -14 +Decide: -18 +Decide: -12 +Decide: -9 +Decide: -12 +Decide: -8 +Decide: -9 +Decide: -13 +Decide: -5 +Decide: -6 +Decide: -7 +Decide: -8 +Decide: -11 +Decide: -12 +Decide: -16 +Decide: -13 +Decide: -16 +Decide: -12 +Decide: -13 +Decide: -17 +Decide: -10 +Decide: -11 +Decide: -12 +Decide: -16 +Decide: -15 +Decide: -16 +Decide: -12 +Decide: -15 +Decide: -17 +Decide: -11 +Decide: -8 +Decide: -10 +Decide: -11 +Decide: -13 +Decide: -16 +Decide: -15 +Decide: -16 +Decide: -13 +Decide: -15 +Decide: -18 +Decide: -11 +Decide: -10 +Decide: -11 +Decide: -7 +Decide: -8 +Decide: -10 +Decide: -12 +Decide: -13 +Decide: -17 +Decide: -15 +Decide: -17 +Decide: -13 +Decide: -15 +Decide: -18 +Decide: -12 +Decide: -10 +Decide: -12 +Decide: -8 +Decide: -10 +Decide: -13 +Decide: -6 +Decide: -7 +Decide: -11 +Decide: -8 +Decide: -11 +Decide: -7 +Decide: -8 +Decide: -12 +Decide: -4 +Decide: -5 +Decide: -6 +Decide: -7 +Decide: -9 +Decide: -11 +Decide: -12 +Decide: -16 +Decide: -14 +Decide: -16 +Decide: -12 +Decide: -14 +Decide: -17 +Decide: -10 +Decide: -11 +Decide: -12 +Decide: -16 +Decide: -15 +Decide: -16 +Decide: -12 +Decide: -15 +Decide: -17 +Decide: -11 +Decide: -9 +Decide: -10 +Decide: -11 +Decide: -14 +Decide: -16 +Decide: -15 +Decide: -16 +Decide: -14 +Decide: -15 +Decide: -19 +Decide: -11 +Decide: -10 +Decide: -11 +Decide: -7 +Decide: -9 +Decide: -10 +Decide: -12 +Decide: -14 +Decide: -17 +Decide: -15 +Decide: -17 +Decide: -14 +Decide: -15 +Decide: -19 +Decide: -12 +Decide: -10 +Decide: -12 +Decide: -9 +Decide: -10 +Decide: -14 +Decide: -6 +Decide: -7 +Decide: -11 +Decide: -9 +Decide: -11 +Decide: -7 +Decide: -9 +Decide: -12 +Decide: -5 +Decide: -6 +Decide: -7 +Decide: -11 +Decide: -10 +Decide: -11 +Decide: -7 +Decide: -10 +Decide: -12 +Decide: -6 +Decide: -3 +Decide: -4 +Decide: -5 +Decide: -6 +Decide: -8 +Decide: -9 +Decide: -11 +Decide: -13 +Decide: -16 +Decide: -14 +Decide: -16 +Decide: -13 +Decide: -14 +Decide: -18 +Decide: -10 +Decide: -11 +Decide: -13 +Decide: -16 +Decide: -15 +Decide: -16 +Decide: -13 +Decide: -15 +Decide: -18 +Decide: -11 +Decide: -9 +Decide: -10 +Decide: -11 +Decide: -14 +Decide: -16 +Decide: -15 +Decide: -16 +Decide: -14 +Decide: -15 +Decide: -19 +Decide: -11 +Decide: -10 +Decide: -11 +Decide: -8 +Decide: -9 +Decide: -10 +Decide: -13 +Decide: -14 +Decide: -18 +Decide: -15 +Decide: -18 +Decide: -14 +Decide: -15 +Decide: -19 +Decide: -13 +Decide: -10 +Decide: -13 +Decide: -9 +Decide: -10 +Decide: -14 +Decide: -6 +Decide: -8 +Decide: -11 +Decide: -9 +Decide: -11 +Decide: -8 +Decide: -9 +Decide: -13 +Decide: -5 +Decide: -6 +Decide: -8 +Decide: -11 +Decide: -10 +Decide: -11 +Decide: -8 +Decide: -10 +Decide: -13 +Decide: -6 +Decide: -4 +Decide: -5 +Decide: -6 +Decide: -9 +Decide: -11 +Decide: -10 +Decide: -11 +Decide: -9 +Decide: -10 +Decide: -14 +Decide: -6 +Decide: -5 +Decide: -6 +Decide: -2 +Decide: -3 +Decide: -4 +Decide: -5 +Decide: -7 +Decide: -8 +Decide: -9 +Decide: -12 +Decide: -13 +Decide: -17 +Decide: -14 +Decide: -17 +Decide: -13 +Decide: -14 +Decide: -18 +Decide: -10 +Decide: -12 +Decide: -13 +Decide: -17 +Decide: -15 +Decide: -17 +Decide: -13 +Decide: -15 +Decide: -18 +Decide: -12 +Decide: -9 +Decide: -10 +Decide: -12 +Decide: -14 +Decide: -17 +Decide: -15 +Decide: -17 +Decide: -14 +Decide: -15 +Decide: -19 +Decide: -12 +Decide: -10 +Decide: -12 +Decide: -8 +Decide: -9 +Decide: -10 +Decide: -13 +Decide: -14 +Decide: -18 +Decide: -15 +Decide: -18 +Decide: -14 +Decide: -15 +Decide: -19 +Decide: -13 +Decide: -10 +Decide: -13 +Decide: -9 +Decide: -10 +Decide: -14 +Decide: -7 +Decide: -8 +Decide: -12 +Decide: -9 +Decide: -12 +Decide: -8 +Decide: -9 +Decide: -13 +Decide: -5 +Decide: -7 +Decide: -8 +Decide: -12 +Decide: -10 +Decide: -12 +Decide: -8 +Decide: -10 +Decide: -13 +Decide: -7 +Decide: -4 +Decide: -5 +Decide: -7 +Decide: -9 +Decide: -12 +Decide: -10 +Decide: -12 +Decide: -9 +Decide: -10 +Decide: -14 +Decide: -7 +Decide: -5 +Decide: -7 +Decide: -3 +Decide: -4 +Decide: -5 +Decide: -8 +Decide: -9 +Decide: -13 +Decide: -10 +Decide: -13 +Decide: -9 +Decide: -10 +Decide: -14 +Decide: -8 +Decide: -5 +Decide: -8 +Decide: -4 +Decide: -5 +Decide: -9 +UNSAT diff --git a/sat-chaff/matthew_output/xcheck_p7.output b/sat-chaff/matthew_output/xcheck_p7.output new file mode 100644 index 0000000..18ab8f9 --- /dev/null +++ b/sat-chaff/matthew_output/xcheck_p7.output @@ -0,0 +1,32780 @@ +Decide: -1 +Decide: -2 +Decide: -3 +Decide: -4 +Decide: -5 +Decide: -6 +Decide: -8 +Decide: -9 +Decide: -10 +Decide: -11 +Decide: -12 +Decide: -15 +Decide: -16 +Decide: -17 +Decide: -18 +Decide: -22 +Decide: -23 +Decide: -24 +Decide: -29 +Decide: -30 +Decide: -36 +Decide: -31 +Decide: -36 +Decide: -30 +Decide: -31 +Decide: -37 +Decide: -25 +Decide: -29 +Decide: -30 +Decide: -36 +Decide: -32 +Decide: -36 +Decide: -30 +Decide: -32 +Decide: -37 +Decide: -29 +Decide: -24 +Decide: -25 +Decide: -29 +Decide: -31 +Decide: -36 +Decide: -32 +Decide: -36 +Decide: -31 +Decide: -32 +Decide: -38 +Decide: -29 +Decide: -25 +Decide: -29 +Decide: -23 +Decide: -24 +Decide: -25 +Decide: -30 +Decide: -31 +Decide: -37 +Decide: -32 +Decide: -37 +Decide: -31 +Decide: -32 +Decide: -38 +Decide: -30 +Decide: -25 +Decide: -30 +Decide: -24 +Decide: -25 +Decide: -31 +Decide: -19 +Decide: -22 +Decide: -23 +Decide: -24 +Decide: -29 +Decide: -30 +Decide: -36 +Decide: -31 +Decide: -36 +Decide: -30 +Decide: -31 +Decide: -37 +Decide: -26 +Decide: -29 +Decide: -30 +Decide: -36 +Decide: -33 +Decide: -36 +Decide: -30 +Decide: -33 +Decide: -37 +Decide: -29 +Decide: -24 +Decide: -26 +Decide: -29 +Decide: -31 +Decide: -36 +Decide: -33 +Decide: -36 +Decide: -31 +Decide: -33 +Decide: -38 +Decide: -29 +Decide: -26 +Decide: -29 +Decide: -23 +Decide: -24 +Decide: -26 +Decide: -30 +Decide: -31 +Decide: -37 +Decide: -33 +Decide: -37 +Decide: -31 +Decide: -33 +Decide: -38 +Decide: -30 +Decide: -26 +Decide: -30 +Decide: -24 +Decide: -26 +Decide: -31 +Decide: -22 +Decide: -23 +Decide: -29 +Decide: -24 +Decide: -29 +Decide: -23 +Decide: -24 +Decide: -30 +Decide: -18 +Decide: -19 +Decide: -22 +Decide: -23 +Decide: -25 +Decide: -29 +Decide: -30 +Decide: -36 +Decide: -32 +Decide: -36 +Decide: -30 +Decide: -32 +Decide: -37 +Decide: -26 +Decide: -29 +Decide: -30 +Decide: -36 +Decide: -33 +Decide: -36 +Decide: -30 +Decide: -33 +Decide: -37 +Decide: -29 +Decide: -25 +Decide: -26 +Decide: -29 +Decide: -32 +Decide: -36 +Decide: -33 +Decide: -36 +Decide: -32 +Decide: -33 +Decide: -39 +Decide: -29 +Decide: -26 +Decide: -29 +Decide: -23 +Decide: -25 +Decide: -26 +Decide: -30 +Decide: -32 +Decide: -37 +Decide: -33 +Decide: -37 +Decide: -32 +Decide: -33 +Decide: -39 +Decide: -30 +Decide: -26 +Decide: -30 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -22 +Decide: -23 +Decide: -29 +Decide: -25 +Decide: -29 +Decide: -23 +Decide: -25 +Decide: -30 +Decide: -19 +Decide: -22 +Decide: -23 +Decide: -29 +Decide: -26 +Decide: -29 +Decide: -23 +Decide: -26 +Decide: -30 +Decide: -22 +Decide: -17 +Decide: -18 +Decide: -19 +Decide: -22 +Decide: -24 +Decide: -25 +Decide: -29 +Decide: -31 +Decide: -36 +Decide: -32 +Decide: -36 +Decide: -31 +Decide: -32 +Decide: -38 +Decide: -26 +Decide: -29 +Decide: -31 +Decide: -36 +Decide: -33 +Decide: -36 +Decide: -31 +Decide: -33 +Decide: -38 +Decide: -29 +Decide: -25 +Decide: -26 +Decide: -29 +Decide: -32 +Decide: -36 +Decide: -33 +Decide: -36 +Decide: -32 +Decide: -33 +Decide: -39 +Decide: -29 +Decide: -26 +Decide: -29 +Decide: -24 +Decide: -25 +Decide: -26 +Decide: -31 +Decide: -32 +Decide: -38 +Decide: -33 +Decide: -38 +Decide: -32 +Decide: -33 +Decide: -39 +Decide: -31 +Decide: -26 +Decide: -31 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -22 +Decide: -24 +Decide: -29 +Decide: -25 +Decide: -29 +Decide: -24 +Decide: -25 +Decide: -31 +Decide: -19 +Decide: -22 +Decide: -24 +Decide: -29 +Decide: -26 +Decide: -29 +Decide: -24 +Decide: -26 +Decide: -31 +Decide: -22 +Decide: -18 +Decide: -19 +Decide: -22 +Decide: -25 +Decide: -29 +Decide: -26 +Decide: -29 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -22 +Decide: -19 +Decide: -22 +Decide: -16 +Decide: -17 +Decide: -18 +Decide: -19 +Decide: -23 +Decide: -24 +Decide: -25 +Decide: -30 +Decide: -31 +Decide: -37 +Decide: -32 +Decide: -37 +Decide: -31 +Decide: -32 +Decide: -38 +Decide: -26 +Decide: -30 +Decide: -31 +Decide: -37 +Decide: -33 +Decide: -37 +Decide: -31 +Decide: -33 +Decide: -38 +Decide: -30 +Decide: -25 +Decide: -26 +Decide: -30 +Decide: -32 +Decide: -37 +Decide: -33 +Decide: -37 +Decide: -32 +Decide: -33 +Decide: -39 +Decide: -30 +Decide: -26 +Decide: -30 +Decide: -24 +Decide: -25 +Decide: -26 +Decide: -31 +Decide: -32 +Decide: -38 +Decide: -33 +Decide: -38 +Decide: -32 +Decide: -33 +Decide: -39 +Decide: -31 +Decide: -26 +Decide: -31 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -23 +Decide: -24 +Decide: -30 +Decide: -25 +Decide: -30 +Decide: -24 +Decide: -25 +Decide: -31 +Decide: -19 +Decide: -23 +Decide: -24 +Decide: -30 +Decide: -26 +Decide: -30 +Decide: -24 +Decide: -26 +Decide: -31 +Decide: -23 +Decide: -18 +Decide: -19 +Decide: -23 +Decide: -25 +Decide: -30 +Decide: -26 +Decide: -30 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -23 +Decide: -19 +Decide: -23 +Decide: -17 +Decide: -18 +Decide: -19 +Decide: -24 +Decide: -25 +Decide: -31 +Decide: -26 +Decide: -31 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -24 +Decide: -19 +Decide: -24 +Decide: -18 +Decide: -19 +Decide: -25 +Decide: -13 +Decide: -15 +Decide: -16 +Decide: -17 +Decide: -18 +Decide: -22 +Decide: -23 +Decide: -24 +Decide: -29 +Decide: -30 +Decide: -36 +Decide: -31 +Decide: -36 +Decide: -30 +Decide: -31 +Decide: -37 +Decide: -25 +Decide: -29 +Decide: -30 +Decide: -36 +Decide: -32 +Decide: -36 +Decide: -30 +Decide: -32 +Decide: -37 +Decide: -29 +Decide: -24 +Decide: -25 +Decide: -29 +Decide: -31 +Decide: -36 +Decide: -32 +Decide: -36 +Decide: -31 +Decide: -32 +Decide: -38 +Decide: -29 +Decide: -25 +Decide: -29 +Decide: -23 +Decide: -24 +Decide: -25 +Decide: -30 +Decide: -31 +Decide: -37 +Decide: -32 +Decide: -37 +Decide: -31 +Decide: -32 +Decide: -38 +Decide: -30 +Decide: -25 +Decide: -30 +Decide: -24 +Decide: -25 +Decide: -31 +Decide: -20 +Decide: -22 +Decide: -23 +Decide: -24 +Decide: -29 +Decide: -30 +Decide: -36 +Decide: -31 +Decide: -36 +Decide: -30 +Decide: -31 +Decide: -37 +Decide: -27 +Decide: -29 +Decide: -30 +Decide: -36 +Decide: -34 +Decide: -36 +Decide: -30 +Decide: -34 +Decide: -37 +Decide: -29 +Decide: -24 +Decide: -27 +Decide: -29 +Decide: -31 +Decide: -36 +Decide: -34 +Decide: -36 +Decide: -31 +Decide: -34 +Decide: -38 +Decide: -29 +Decide: -27 +Decide: -29 +Decide: -23 +Decide: -24 +Decide: -27 +Decide: -30 +Decide: -31 +Decide: -37 +Decide: -34 +Decide: -37 +Decide: -31 +Decide: -34 +Decide: -38 +Decide: -30 +Decide: -27 +Decide: -30 +Decide: -24 +Decide: -27 +Decide: -31 +Decide: -22 +Decide: -23 +Decide: -29 +Decide: -24 +Decide: -29 +Decide: -23 +Decide: -24 +Decide: -30 +Decide: -18 +Decide: -20 +Decide: -22 +Decide: -23 +Decide: -25 +Decide: -29 +Decide: -30 +Decide: -36 +Decide: -32 +Decide: -36 +Decide: -30 +Decide: -32 +Decide: -37 +Decide: -27 +Decide: -29 +Decide: -30 +Decide: -36 +Decide: -34 +Decide: -36 +Decide: -30 +Decide: -34 +Decide: -37 +Decide: -29 +Decide: -25 +Decide: -27 +Decide: -29 +Decide: -32 +Decide: -36 +Decide: -34 +Decide: -36 +Decide: -32 +Decide: -34 +Decide: -39 +Decide: -29 +Decide: -27 +Decide: -29 +Decide: -23 +Decide: -25 +Decide: -27 +Decide: -30 +Decide: -32 +Decide: -37 +Decide: -34 +Decide: -37 +Decide: -32 +Decide: -34 +Decide: -39 +Decide: -30 +Decide: -27 +Decide: -30 +Decide: -25 +Decide: -27 +Decide: -32 +Decide: -22 +Decide: -23 +Decide: -29 +Decide: -25 +Decide: -29 +Decide: -23 +Decide: -25 +Decide: -30 +Decide: -20 +Decide: -22 +Decide: -23 +Decide: -29 +Decide: -27 +Decide: -29 +Decide: -23 +Decide: -27 +Decide: -30 +Decide: -22 +Decide: -17 +Decide: -18 +Decide: -20 +Decide: -22 +Decide: -24 +Decide: -25 +Decide: -29 +Decide: -31 +Decide: -36 +Decide: -32 +Decide: -36 +Decide: -31 +Decide: -32 +Decide: -38 +Decide: -27 +Decide: -29 +Decide: -31 +Decide: -36 +Decide: -34 +Decide: -36 +Decide: -31 +Decide: -34 +Decide: -38 +Decide: -29 +Decide: -25 +Decide: -27 +Decide: -29 +Decide: -32 +Decide: -36 +Decide: -34 +Decide: -36 +Decide: -32 +Decide: -34 +Decide: -39 +Decide: -29 +Decide: -27 +Decide: -29 +Decide: -24 +Decide: -25 +Decide: -27 +Decide: -31 +Decide: -32 +Decide: -38 +Decide: -34 +Decide: -38 +Decide: -32 +Decide: -34 +Decide: -39 +Decide: -31 +Decide: -27 +Decide: -31 +Decide: -25 +Decide: -27 +Decide: -32 +Decide: -22 +Decide: -24 +Decide: -29 +Decide: -25 +Decide: -29 +Decide: -24 +Decide: -25 +Decide: -31 +Decide: -20 +Decide: -22 +Decide: -24 +Decide: -29 +Decide: -27 +Decide: -29 +Decide: -24 +Decide: -27 +Decide: -31 +Decide: -22 +Decide: -18 +Decide: -20 +Decide: -22 +Decide: -25 +Decide: -29 +Decide: -27 +Decide: -29 +Decide: -25 +Decide: -27 +Decide: -32 +Decide: -22 +Decide: -20 +Decide: -22 +Decide: -16 +Decide: -17 +Decide: -18 +Decide: -20 +Decide: -23 +Decide: -24 +Decide: -25 +Decide: -30 +Decide: -31 +Decide: -37 +Decide: -32 +Decide: -37 +Decide: -31 +Decide: -32 +Decide: -38 +Decide: -27 +Decide: -30 +Decide: -31 +Decide: -37 +Decide: -34 +Decide: -37 +Decide: -31 +Decide: -34 +Decide: -38 +Decide: -30 +Decide: -25 +Decide: -27 +Decide: -30 +Decide: -32 +Decide: -37 +Decide: -34 +Decide: -37 +Decide: -32 +Decide: -34 +Decide: -39 +Decide: -30 +Decide: -27 +Decide: -30 +Decide: -24 +Decide: -25 +Decide: -27 +Decide: -31 +Decide: -32 +Decide: -38 +Decide: -34 +Decide: -38 +Decide: -32 +Decide: -34 +Decide: -39 +Decide: -31 +Decide: -27 +Decide: -31 +Decide: -25 +Decide: -27 +Decide: -32 +Decide: -23 +Decide: -24 +Decide: -30 +Decide: -25 +Decide: -30 +Decide: -24 +Decide: -25 +Decide: -31 +Decide: -20 +Decide: -23 +Decide: -24 +Decide: -30 +Decide: -27 +Decide: -30 +Decide: -24 +Decide: -27 +Decide: -31 +Decide: -23 +Decide: -18 +Decide: -20 +Decide: -23 +Decide: -25 +Decide: -30 +Decide: -27 +Decide: -30 +Decide: -25 +Decide: -27 +Decide: -32 +Decide: -23 +Decide: -20 +Decide: -23 +Decide: -17 +Decide: -18 +Decide: -20 +Decide: -24 +Decide: -25 +Decide: -31 +Decide: -27 +Decide: -31 +Decide: -25 +Decide: -27 +Decide: -32 +Decide: -24 +Decide: -20 +Decide: -24 +Decide: -18 +Decide: -20 +Decide: -25 +Decide: -15 +Decide: -16 +Decide: -17 +Decide: -22 +Decide: -23 +Decide: -29 +Decide: -24 +Decide: -29 +Decide: -23 +Decide: -24 +Decide: -30 +Decide: -18 +Decide: -22 +Decide: -23 +Decide: -29 +Decide: -25 +Decide: -29 +Decide: -23 +Decide: -25 +Decide: -30 +Decide: -22 +Decide: -17 +Decide: -18 +Decide: -22 +Decide: -24 +Decide: -29 +Decide: -25 +Decide: -29 +Decide: -24 +Decide: -25 +Decide: -31 +Decide: -22 +Decide: -18 +Decide: -22 +Decide: -16 +Decide: -17 +Decide: -18 +Decide: -23 +Decide: -24 +Decide: -30 +Decide: -25 +Decide: -30 +Decide: -24 +Decide: -25 +Decide: -31 +Decide: -23 +Decide: -18 +Decide: -23 +Decide: -17 +Decide: -18 +Decide: -24 +Decide: -12 +Decide: -13 +Decide: -15 +Decide: -16 +Decide: -17 +Decide: -19 +Decide: -22 +Decide: -23 +Decide: -24 +Decide: -29 +Decide: -30 +Decide: -36 +Decide: -31 +Decide: -36 +Decide: -30 +Decide: -31 +Decide: -37 +Decide: -26 +Decide: -29 +Decide: -30 +Decide: -36 +Decide: -33 +Decide: -36 +Decide: -30 +Decide: -33 +Decide: -37 +Decide: -29 +Decide: -24 +Decide: -26 +Decide: -29 +Decide: -31 +Decide: -36 +Decide: -33 +Decide: -36 +Decide: -31 +Decide: -33 +Decide: -38 +Decide: -29 +Decide: -26 +Decide: -29 +Decide: -23 +Decide: -24 +Decide: -26 +Decide: -30 +Decide: -31 +Decide: -37 +Decide: -33 +Decide: -37 +Decide: -31 +Decide: -33 +Decide: -38 +Decide: -30 +Decide: -26 +Decide: -30 +Decide: -24 +Decide: -26 +Decide: -31 +Decide: -20 +Decide: -22 +Decide: -23 +Decide: -24 +Decide: -29 +Decide: -30 +Decide: -36 +Decide: -31 +Decide: -36 +Decide: -30 +Decide: -31 +Decide: -37 +Decide: -27 +Decide: -29 +Decide: -30 +Decide: -36 +Decide: -34 +Decide: -36 +Decide: -30 +Decide: -34 +Decide: -37 +Decide: -29 +Decide: -24 +Decide: -27 +Decide: -29 +Decide: -31 +Decide: -36 +Decide: -34 +Decide: -36 +Decide: -31 +Decide: -34 +Decide: -38 +Decide: -29 +Decide: -27 +Decide: -29 +Decide: -23 +Decide: -24 +Decide: -27 +Decide: -30 +Decide: -31 +Decide: -37 +Decide: -34 +Decide: -37 +Decide: -31 +Decide: -34 +Decide: -38 +Decide: -30 +Decide: -27 +Decide: -30 +Decide: -24 +Decide: -27 +Decide: -31 +Decide: -22 +Decide: -23 +Decide: -29 +Decide: -24 +Decide: -29 +Decide: -23 +Decide: -24 +Decide: -30 +Decide: -19 +Decide: -20 +Decide: -22 +Decide: -23 +Decide: -26 +Decide: -29 +Decide: -30 +Decide: -36 +Decide: -33 +Decide: -36 +Decide: -30 +Decide: -33 +Decide: -37 +Decide: -27 +Decide: -29 +Decide: -30 +Decide: -36 +Decide: -34 +Decide: -36 +Decide: -30 +Decide: -34 +Decide: -37 +Decide: -29 +Decide: -26 +Decide: -27 +Decide: -29 +Decide: -33 +Decide: -36 +Decide: -34 +Decide: -36 +Decide: -33 +Decide: -34 +Decide: -40 +Decide: -29 +Decide: -27 +Decide: -29 +Decide: -23 +Decide: -26 +Decide: -27 +Decide: -30 +Decide: -33 +Decide: -37 +Decide: -34 +Decide: -37 +Decide: -33 +Decide: -34 +Decide: -40 +Decide: -30 +Decide: -27 +Decide: -30 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -22 +Decide: -23 +Decide: -29 +Decide: -26 +Decide: -29 +Decide: -23 +Decide: -26 +Decide: -30 +Decide: -20 +Decide: -22 +Decide: -23 +Decide: -29 +Decide: -27 +Decide: -29 +Decide: -23 +Decide: -27 +Decide: -30 +Decide: -22 +Decide: -17 +Decide: -19 +Decide: -20 +Decide: -22 +Decide: -24 +Decide: -26 +Decide: -29 +Decide: -31 +Decide: -36 +Decide: -33 +Decide: -36 +Decide: -31 +Decide: -33 +Decide: -38 +Decide: -27 +Decide: -29 +Decide: -31 +Decide: -36 +Decide: -34 +Decide: -36 +Decide: -31 +Decide: -34 +Decide: -38 +Decide: -29 +Decide: -26 +Decide: -27 +Decide: -29 +Decide: -33 +Decide: -36 +Decide: -34 +Decide: -36 +Decide: -33 +Decide: -34 +Decide: -40 +Decide: -29 +Decide: -27 +Decide: -29 +Decide: -24 +Decide: -26 +Decide: -27 +Decide: -31 +Decide: -33 +Decide: -38 +Decide: -34 +Decide: -38 +Decide: -33 +Decide: -34 +Decide: -40 +Decide: -31 +Decide: -27 +Decide: -31 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -22 +Decide: -24 +Decide: -29 +Decide: -26 +Decide: -29 +Decide: -24 +Decide: -26 +Decide: -31 +Decide: -20 +Decide: -22 +Decide: -24 +Decide: -29 +Decide: -27 +Decide: -29 +Decide: -24 +Decide: -27 +Decide: -31 +Decide: -22 +Decide: -19 +Decide: -20 +Decide: -22 +Decide: -26 +Decide: -29 +Decide: -27 +Decide: -29 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -22 +Decide: -20 +Decide: -22 +Decide: -16 +Decide: -17 +Decide: -19 +Decide: -20 +Decide: -23 +Decide: -24 +Decide: -26 +Decide: -30 +Decide: -31 +Decide: -37 +Decide: -33 +Decide: -37 +Decide: -31 +Decide: -33 +Decide: -38 +Decide: -27 +Decide: -30 +Decide: -31 +Decide: -37 +Decide: -34 +Decide: -37 +Decide: -31 +Decide: -34 +Decide: -38 +Decide: -30 +Decide: -26 +Decide: -27 +Decide: -30 +Decide: -33 +Decide: -37 +Decide: -34 +Decide: -37 +Decide: -33 +Decide: -34 +Decide: -40 +Decide: -30 +Decide: -27 +Decide: -30 +Decide: -24 +Decide: -26 +Decide: -27 +Decide: -31 +Decide: -33 +Decide: -38 +Decide: -34 +Decide: -38 +Decide: -33 +Decide: -34 +Decide: -40 +Decide: -31 +Decide: -27 +Decide: -31 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -23 +Decide: -24 +Decide: -30 +Decide: -26 +Decide: -30 +Decide: -24 +Decide: -26 +Decide: -31 +Decide: -20 +Decide: -23 +Decide: -24 +Decide: -30 +Decide: -27 +Decide: -30 +Decide: -24 +Decide: -27 +Decide: -31 +Decide: -23 +Decide: -19 +Decide: -20 +Decide: -23 +Decide: -26 +Decide: -30 +Decide: -27 +Decide: -30 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -23 +Decide: -20 +Decide: -23 +Decide: -17 +Decide: -19 +Decide: -20 +Decide: -24 +Decide: -26 +Decide: -31 +Decide: -27 +Decide: -31 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -24 +Decide: -20 +Decide: -24 +Decide: -19 +Decide: -20 +Decide: -26 +Decide: -15 +Decide: -16 +Decide: -17 +Decide: -22 +Decide: -23 +Decide: -29 +Decide: -24 +Decide: -29 +Decide: -23 +Decide: -24 +Decide: -30 +Decide: -19 +Decide: -22 +Decide: -23 +Decide: -29 +Decide: -26 +Decide: -29 +Decide: -23 +Decide: -26 +Decide: -30 +Decide: -22 +Decide: -17 +Decide: -19 +Decide: -22 +Decide: -24 +Decide: -29 +Decide: -26 +Decide: -29 +Decide: -24 +Decide: -26 +Decide: -31 +Decide: -22 +Decide: -19 +Decide: -22 +Decide: -16 +Decide: -17 +Decide: -19 +Decide: -23 +Decide: -24 +Decide: -30 +Decide: -26 +Decide: -30 +Decide: -24 +Decide: -26 +Decide: -31 +Decide: -23 +Decide: -19 +Decide: -23 +Decide: -17 +Decide: -19 +Decide: -24 +Decide: -13 +Decide: -15 +Decide: -16 +Decide: -17 +Decide: -22 +Decide: -23 +Decide: -29 +Decide: -24 +Decide: -29 +Decide: -23 +Decide: -24 +Decide: -30 +Decide: -20 +Decide: -22 +Decide: -23 +Decide: -29 +Decide: -27 +Decide: -29 +Decide: -23 +Decide: -27 +Decide: -30 +Decide: -22 +Decide: -17 +Decide: -20 +Decide: -22 +Decide: -24 +Decide: -29 +Decide: -27 +Decide: -29 +Decide: -24 +Decide: -27 +Decide: -31 +Decide: -22 +Decide: -20 +Decide: -22 +Decide: -16 +Decide: -17 +Decide: -20 +Decide: -23 +Decide: -24 +Decide: -30 +Decide: -27 +Decide: -30 +Decide: -24 +Decide: -27 +Decide: -31 +Decide: -23 +Decide: -20 +Decide: -23 +Decide: -17 +Decide: -20 +Decide: -24 +Decide: -15 +Decide: -16 +Decide: -22 +Decide: -17 +Decide: -22 +Decide: -16 +Decide: -17 +Decide: -23 +Decide: -11 +Decide: -12 +Decide: -13 +Decide: -15 +Decide: -16 +Decide: -18 +Decide: -19 +Decide: -22 +Decide: -23 +Decide: -25 +Decide: -29 +Decide: -30 +Decide: -36 +Decide: -32 +Decide: -36 +Decide: -30 +Decide: -32 +Decide: -37 +Decide: -26 +Decide: -29 +Decide: -30 +Decide: -36 +Decide: -33 +Decide: -36 +Decide: -30 +Decide: -33 +Decide: -37 +Decide: -29 +Decide: -25 +Decide: -26 +Decide: -29 +Decide: -32 +Decide: -36 +Decide: -33 +Decide: -36 +Decide: -32 +Decide: -33 +Decide: -39 +Decide: -29 +Decide: -26 +Decide: -29 +Decide: -23 +Decide: -25 +Decide: -26 +Decide: -30 +Decide: -32 +Decide: -37 +Decide: -33 +Decide: -37 +Decide: -32 +Decide: -33 +Decide: -39 +Decide: -30 +Decide: -26 +Decide: -30 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -20 +Decide: -22 +Decide: -23 +Decide: -25 +Decide: -29 +Decide: -30 +Decide: -36 +Decide: -32 +Decide: -36 +Decide: -30 +Decide: -32 +Decide: -37 +Decide: -27 +Decide: -29 +Decide: -30 +Decide: -36 +Decide: -34 +Decide: -36 +Decide: -30 +Decide: -34 +Decide: -37 +Decide: -29 +Decide: -25 +Decide: -27 +Decide: -29 +Decide: -32 +Decide: -36 +Decide: -34 +Decide: -36 +Decide: -32 +Decide: -34 +Decide: -39 +Decide: -29 +Decide: -27 +Decide: -29 +Decide: -23 +Decide: -25 +Decide: -27 +Decide: -30 +Decide: -32 +Decide: -37 +Decide: -34 +Decide: -37 +Decide: -32 +Decide: -34 +Decide: -39 +Decide: -30 +Decide: -27 +Decide: -30 +Decide: -25 +Decide: -27 +Decide: -32 +Decide: -22 +Decide: -23 +Decide: -29 +Decide: -25 +Decide: -29 +Decide: -23 +Decide: -25 +Decide: -30 +Decide: -19 +Decide: -20 +Decide: -22 +Decide: -23 +Decide: -26 +Decide: -29 +Decide: -30 +Decide: -36 +Decide: -33 +Decide: -36 +Decide: -30 +Decide: -33 +Decide: -37 +Decide: -27 +Decide: -29 +Decide: -30 +Decide: -36 +Decide: -34 +Decide: -36 +Decide: -30 +Decide: -34 +Decide: -37 +Decide: -29 +Decide: -26 +Decide: -27 +Decide: -29 +Decide: -33 +Decide: -36 +Decide: -34 +Decide: -36 +Decide: -33 +Decide: -34 +Decide: -40 +Decide: -29 +Decide: -27 +Decide: -29 +Decide: -23 +Decide: -26 +Decide: -27 +Decide: -30 +Decide: -33 +Decide: -37 +Decide: -34 +Decide: -37 +Decide: -33 +Decide: -34 +Decide: -40 +Decide: -30 +Decide: -27 +Decide: -30 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -22 +Decide: -23 +Decide: -29 +Decide: -26 +Decide: -29 +Decide: -23 +Decide: -26 +Decide: -30 +Decide: -20 +Decide: -22 +Decide: -23 +Decide: -29 +Decide: -27 +Decide: -29 +Decide: -23 +Decide: -27 +Decide: -30 +Decide: -22 +Decide: -18 +Decide: -19 +Decide: -20 +Decide: -22 +Decide: -25 +Decide: -26 +Decide: -29 +Decide: -32 +Decide: -36 +Decide: -33 +Decide: -36 +Decide: -32 +Decide: -33 +Decide: -39 +Decide: -27 +Decide: -29 +Decide: -32 +Decide: -36 +Decide: -34 +Decide: -36 +Decide: -32 +Decide: -34 +Decide: -39 +Decide: -29 +Decide: -26 +Decide: -27 +Decide: -29 +Decide: -33 +Decide: -36 +Decide: -34 +Decide: -36 +Decide: -33 +Decide: -34 +Decide: -40 +Decide: -29 +Decide: -27 +Decide: -29 +Decide: -25 +Decide: -26 +Decide: -27 +Decide: -32 +Decide: -33 +Decide: -39 +Decide: -34 +Decide: -39 +Decide: -33 +Decide: -34 +Decide: -40 +Decide: -32 +Decide: -27 +Decide: -32 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -22 +Decide: -25 +Decide: -29 +Decide: -26 +Decide: -29 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -20 +Decide: -22 +Decide: -25 +Decide: -29 +Decide: -27 +Decide: -29 +Decide: -25 +Decide: -27 +Decide: -32 +Decide: -22 +Decide: -19 +Decide: -20 +Decide: -22 +Decide: -26 +Decide: -29 +Decide: -27 +Decide: -29 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -22 +Decide: -20 +Decide: -22 +Decide: -16 +Decide: -18 +Decide: -19 +Decide: -20 +Decide: -23 +Decide: -25 +Decide: -26 +Decide: -30 +Decide: -32 +Decide: -37 +Decide: -33 +Decide: -37 +Decide: -32 +Decide: -33 +Decide: -39 +Decide: -27 +Decide: -30 +Decide: -32 +Decide: -37 +Decide: -34 +Decide: -37 +Decide: -32 +Decide: -34 +Decide: -39 +Decide: -30 +Decide: -26 +Decide: -27 +Decide: -30 +Decide: -33 +Decide: -37 +Decide: -34 +Decide: -37 +Decide: -33 +Decide: -34 +Decide: -40 +Decide: -30 +Decide: -27 +Decide: -30 +Decide: -25 +Decide: -26 +Decide: -27 +Decide: -32 +Decide: -33 +Decide: -39 +Decide: -34 +Decide: -39 +Decide: -33 +Decide: -34 +Decide: -40 +Decide: -32 +Decide: -27 +Decide: -32 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -23 +Decide: -25 +Decide: -30 +Decide: -26 +Decide: -30 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -20 +Decide: -23 +Decide: -25 +Decide: -30 +Decide: -27 +Decide: -30 +Decide: -25 +Decide: -27 +Decide: -32 +Decide: -23 +Decide: -19 +Decide: -20 +Decide: -23 +Decide: -26 +Decide: -30 +Decide: -27 +Decide: -30 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -23 +Decide: -20 +Decide: -23 +Decide: -18 +Decide: -19 +Decide: -20 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -27 +Decide: -32 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -25 +Decide: -20 +Decide: -25 +Decide: -19 +Decide: -20 +Decide: -26 +Decide: -15 +Decide: -16 +Decide: -18 +Decide: -22 +Decide: -23 +Decide: -29 +Decide: -25 +Decide: -29 +Decide: -23 +Decide: -25 +Decide: -30 +Decide: -19 +Decide: -22 +Decide: -23 +Decide: -29 +Decide: -26 +Decide: -29 +Decide: -23 +Decide: -26 +Decide: -30 +Decide: -22 +Decide: -18 +Decide: -19 +Decide: -22 +Decide: -25 +Decide: -29 +Decide: -26 +Decide: -29 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -22 +Decide: -19 +Decide: -22 +Decide: -16 +Decide: -18 +Decide: -19 +Decide: -23 +Decide: -25 +Decide: -30 +Decide: -26 +Decide: -30 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -23 +Decide: -19 +Decide: -23 +Decide: -18 +Decide: -19 +Decide: -25 +Decide: -13 +Decide: -15 +Decide: -16 +Decide: -18 +Decide: -22 +Decide: -23 +Decide: -29 +Decide: -25 +Decide: -29 +Decide: -23 +Decide: -25 +Decide: -30 +Decide: -20 +Decide: -22 +Decide: -23 +Decide: -29 +Decide: -27 +Decide: -29 +Decide: -23 +Decide: -27 +Decide: -30 +Decide: -22 +Decide: -18 +Decide: -20 +Decide: -22 +Decide: -25 +Decide: -29 +Decide: -27 +Decide: -29 +Decide: -25 +Decide: -27 +Decide: -32 +Decide: -22 +Decide: -20 +Decide: -22 +Decide: -16 +Decide: -18 +Decide: -20 +Decide: -23 +Decide: -25 +Decide: -30 +Decide: -27 +Decide: -30 +Decide: -25 +Decide: -27 +Decide: -32 +Decide: -23 +Decide: -20 +Decide: -23 +Decide: -18 +Decide: -20 +Decide: -25 +Decide: -15 +Decide: -16 +Decide: -22 +Decide: -18 +Decide: -22 +Decide: -16 +Decide: -18 +Decide: -23 +Decide: -12 +Decide: -13 +Decide: -15 +Decide: -16 +Decide: -19 +Decide: -22 +Decide: -23 +Decide: -29 +Decide: -26 +Decide: -29 +Decide: -23 +Decide: -26 +Decide: -30 +Decide: -20 +Decide: -22 +Decide: -23 +Decide: -29 +Decide: -27 +Decide: -29 +Decide: -23 +Decide: -27 +Decide: -30 +Decide: -22 +Decide: -19 +Decide: -20 +Decide: -22 +Decide: -26 +Decide: -29 +Decide: -27 +Decide: -29 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -22 +Decide: -20 +Decide: -22 +Decide: -16 +Decide: -19 +Decide: -20 +Decide: -23 +Decide: -26 +Decide: -30 +Decide: -27 +Decide: -30 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -23 +Decide: -20 +Decide: -23 +Decide: -19 +Decide: -20 +Decide: -26 +Decide: -15 +Decide: -16 +Decide: -22 +Decide: -19 +Decide: -22 +Decide: -16 +Decide: -19 +Decide: -23 +Decide: -13 +Decide: -15 +Decide: -16 +Decide: -22 +Decide: -20 +Decide: -22 +Decide: -16 +Decide: -20 +Decide: -23 +Decide: -15 +Decide: -10 +Decide: -11 +Decide: -12 +Decide: -13 +Decide: -15 +Decide: -17 +Decide: -18 +Decide: -19 +Decide: -22 +Decide: -24 +Decide: -25 +Decide: -29 +Decide: -31 +Decide: -36 +Decide: -32 +Decide: -36 +Decide: -31 +Decide: -32 +Decide: -38 +Decide: -26 +Decide: -29 +Decide: -31 +Decide: -36 +Decide: -33 +Decide: -36 +Decide: -31 +Decide: -33 +Decide: -38 +Decide: -29 +Decide: -25 +Decide: -26 +Decide: -29 +Decide: -32 +Decide: -36 +Decide: -33 +Decide: -36 +Decide: -32 +Decide: -33 +Decide: -39 +Decide: -29 +Decide: -26 +Decide: -29 +Decide: -24 +Decide: -25 +Decide: -26 +Decide: -31 +Decide: -32 +Decide: -38 +Decide: -33 +Decide: -38 +Decide: -32 +Decide: -33 +Decide: -39 +Decide: -31 +Decide: -26 +Decide: -31 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -20 +Decide: -22 +Decide: -24 +Decide: -25 +Decide: -29 +Decide: -31 +Decide: -36 +Decide: -32 +Decide: -36 +Decide: -31 +Decide: -32 +Decide: -38 +Decide: -27 +Decide: -29 +Decide: -31 +Decide: -36 +Decide: -34 +Decide: -36 +Decide: -31 +Decide: -34 +Decide: -38 +Decide: -29 +Decide: -25 +Decide: -27 +Decide: -29 +Decide: -32 +Decide: -36 +Decide: -34 +Decide: -36 +Decide: -32 +Decide: -34 +Decide: -39 +Decide: -29 +Decide: -27 +Decide: -29 +Decide: -24 +Decide: -25 +Decide: -27 +Decide: -31 +Decide: -32 +Decide: -38 +Decide: -34 +Decide: -38 +Decide: -32 +Decide: -34 +Decide: -39 +Decide: -31 +Decide: -27 +Decide: -31 +Decide: -25 +Decide: -27 +Decide: -32 +Decide: -22 +Decide: -24 +Decide: -29 +Decide: -25 +Decide: -29 +Decide: -24 +Decide: -25 +Decide: -31 +Decide: -19 +Decide: -20 +Decide: -22 +Decide: -24 +Decide: -26 +Decide: -29 +Decide: -31 +Decide: -36 +Decide: -33 +Decide: -36 +Decide: -31 +Decide: -33 +Decide: -38 +Decide: -27 +Decide: -29 +Decide: -31 +Decide: -36 +Decide: -34 +Decide: -36 +Decide: -31 +Decide: -34 +Decide: -38 +Decide: -29 +Decide: -26 +Decide: -27 +Decide: -29 +Decide: -33 +Decide: -36 +Decide: -34 +Decide: -36 +Decide: -33 +Decide: -34 +Decide: -40 +Decide: -29 +Decide: -27 +Decide: -29 +Decide: -24 +Decide: -26 +Decide: -27 +Decide: -31 +Decide: -33 +Decide: -38 +Decide: -34 +Decide: -38 +Decide: -33 +Decide: -34 +Decide: -40 +Decide: -31 +Decide: -27 +Decide: -31 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -22 +Decide: -24 +Decide: -29 +Decide: -26 +Decide: -29 +Decide: -24 +Decide: -26 +Decide: -31 +Decide: -20 +Decide: -22 +Decide: -24 +Decide: -29 +Decide: -27 +Decide: -29 +Decide: -24 +Decide: -27 +Decide: -31 +Decide: -22 +Decide: -18 +Decide: -19 +Decide: -20 +Decide: -22 +Decide: -25 +Decide: -26 +Decide: -29 +Decide: -32 +Decide: -36 +Decide: -33 +Decide: -36 +Decide: -32 +Decide: -33 +Decide: -39 +Decide: -27 +Decide: -29 +Decide: -32 +Decide: -36 +Decide: -34 +Decide: -36 +Decide: -32 +Decide: -34 +Decide: -39 +Decide: -29 +Decide: -26 +Decide: -27 +Decide: -29 +Decide: -33 +Decide: -36 +Decide: -34 +Decide: -36 +Decide: -33 +Decide: -34 +Decide: -40 +Decide: -29 +Decide: -27 +Decide: -29 +Decide: -25 +Decide: -26 +Decide: -27 +Decide: -32 +Decide: -33 +Decide: -39 +Decide: -34 +Decide: -39 +Decide: -33 +Decide: -34 +Decide: -40 +Decide: -32 +Decide: -27 +Decide: -32 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -22 +Decide: -25 +Decide: -29 +Decide: -26 +Decide: -29 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -20 +Decide: -22 +Decide: -25 +Decide: -29 +Decide: -27 +Decide: -29 +Decide: -25 +Decide: -27 +Decide: -32 +Decide: -22 +Decide: -19 +Decide: -20 +Decide: -22 +Decide: -26 +Decide: -29 +Decide: -27 +Decide: -29 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -22 +Decide: -20 +Decide: -22 +Decide: -17 +Decide: -18 +Decide: -19 +Decide: -20 +Decide: -24 +Decide: -25 +Decide: -26 +Decide: -31 +Decide: -32 +Decide: -38 +Decide: -33 +Decide: -38 +Decide: -32 +Decide: -33 +Decide: -39 +Decide: -27 +Decide: -31 +Decide: -32 +Decide: -38 +Decide: -34 +Decide: -38 +Decide: -32 +Decide: -34 +Decide: -39 +Decide: -31 +Decide: -26 +Decide: -27 +Decide: -31 +Decide: -33 +Decide: -38 +Decide: -34 +Decide: -38 +Decide: -33 +Decide: -34 +Decide: -40 +Decide: -31 +Decide: -27 +Decide: -31 +Decide: -25 +Decide: -26 +Decide: -27 +Decide: -32 +Decide: -33 +Decide: -39 +Decide: -34 +Decide: -39 +Decide: -33 +Decide: -34 +Decide: -40 +Decide: -32 +Decide: -27 +Decide: -32 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -24 +Decide: -25 +Decide: -31 +Decide: -26 +Decide: -31 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -20 +Decide: -24 +Decide: -25 +Decide: -31 +Decide: -27 +Decide: -31 +Decide: -25 +Decide: -27 +Decide: -32 +Decide: -24 +Decide: -19 +Decide: -20 +Decide: -24 +Decide: -26 +Decide: -31 +Decide: -27 +Decide: -31 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -24 +Decide: -20 +Decide: -24 +Decide: -18 +Decide: -19 +Decide: -20 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -27 +Decide: -32 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -25 +Decide: -20 +Decide: -25 +Decide: -19 +Decide: -20 +Decide: -26 +Decide: -15 +Decide: -17 +Decide: -18 +Decide: -22 +Decide: -24 +Decide: -29 +Decide: -25 +Decide: -29 +Decide: -24 +Decide: -25 +Decide: -31 +Decide: -19 +Decide: -22 +Decide: -24 +Decide: -29 +Decide: -26 +Decide: -29 +Decide: -24 +Decide: -26 +Decide: -31 +Decide: -22 +Decide: -18 +Decide: -19 +Decide: -22 +Decide: -25 +Decide: -29 +Decide: -26 +Decide: -29 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -22 +Decide: -19 +Decide: -22 +Decide: -17 +Decide: -18 +Decide: -19 +Decide: -24 +Decide: -25 +Decide: -31 +Decide: -26 +Decide: -31 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -24 +Decide: -19 +Decide: -24 +Decide: -18 +Decide: -19 +Decide: -25 +Decide: -13 +Decide: -15 +Decide: -17 +Decide: -18 +Decide: -22 +Decide: -24 +Decide: -29 +Decide: -25 +Decide: -29 +Decide: -24 +Decide: -25 +Decide: -31 +Decide: -20 +Decide: -22 +Decide: -24 +Decide: -29 +Decide: -27 +Decide: -29 +Decide: -24 +Decide: -27 +Decide: -31 +Decide: -22 +Decide: -18 +Decide: -20 +Decide: -22 +Decide: -25 +Decide: -29 +Decide: -27 +Decide: -29 +Decide: -25 +Decide: -27 +Decide: -32 +Decide: -22 +Decide: -20 +Decide: -22 +Decide: -17 +Decide: -18 +Decide: -20 +Decide: -24 +Decide: -25 +Decide: -31 +Decide: -27 +Decide: -31 +Decide: -25 +Decide: -27 +Decide: -32 +Decide: -24 +Decide: -20 +Decide: -24 +Decide: -18 +Decide: -20 +Decide: -25 +Decide: -15 +Decide: -17 +Decide: -22 +Decide: -18 +Decide: -22 +Decide: -17 +Decide: -18 +Decide: -24 +Decide: -12 +Decide: -13 +Decide: -15 +Decide: -17 +Decide: -19 +Decide: -22 +Decide: -24 +Decide: -29 +Decide: -26 +Decide: -29 +Decide: -24 +Decide: -26 +Decide: -31 +Decide: -20 +Decide: -22 +Decide: -24 +Decide: -29 +Decide: -27 +Decide: -29 +Decide: -24 +Decide: -27 +Decide: -31 +Decide: -22 +Decide: -19 +Decide: -20 +Decide: -22 +Decide: -26 +Decide: -29 +Decide: -27 +Decide: -29 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -22 +Decide: -20 +Decide: -22 +Decide: -17 +Decide: -19 +Decide: -20 +Decide: -24 +Decide: -26 +Decide: -31 +Decide: -27 +Decide: -31 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -24 +Decide: -20 +Decide: -24 +Decide: -19 +Decide: -20 +Decide: -26 +Decide: -15 +Decide: -17 +Decide: -22 +Decide: -19 +Decide: -22 +Decide: -17 +Decide: -19 +Decide: -24 +Decide: -13 +Decide: -15 +Decide: -17 +Decide: -22 +Decide: -20 +Decide: -22 +Decide: -17 +Decide: -20 +Decide: -24 +Decide: -15 +Decide: -11 +Decide: -12 +Decide: -13 +Decide: -15 +Decide: -18 +Decide: -19 +Decide: -22 +Decide: -25 +Decide: -29 +Decide: -26 +Decide: -29 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -20 +Decide: -22 +Decide: -25 +Decide: -29 +Decide: -27 +Decide: -29 +Decide: -25 +Decide: -27 +Decide: -32 +Decide: -22 +Decide: -19 +Decide: -20 +Decide: -22 +Decide: -26 +Decide: -29 +Decide: -27 +Decide: -29 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -22 +Decide: -20 +Decide: -22 +Decide: -18 +Decide: -19 +Decide: -20 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -27 +Decide: -32 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -25 +Decide: -20 +Decide: -25 +Decide: -19 +Decide: -20 +Decide: -26 +Decide: -15 +Decide: -18 +Decide: -22 +Decide: -19 +Decide: -22 +Decide: -18 +Decide: -19 +Decide: -25 +Decide: -13 +Decide: -15 +Decide: -18 +Decide: -22 +Decide: -20 +Decide: -22 +Decide: -18 +Decide: -20 +Decide: -25 +Decide: -15 +Decide: -12 +Decide: -13 +Decide: -15 +Decide: -19 +Decide: -22 +Decide: -20 +Decide: -22 +Decide: -19 +Decide: -20 +Decide: -26 +Decide: -15 +Decide: -13 +Decide: -15 +Decide: -9 +Decide: -10 +Decide: -11 +Decide: -12 +Decide: -13 +Decide: -16 +Decide: -17 +Decide: -18 +Decide: -19 +Decide: -23 +Decide: -24 +Decide: -25 +Decide: -30 +Decide: -31 +Decide: -37 +Decide: -32 +Decide: -37 +Decide: -31 +Decide: -32 +Decide: -38 +Decide: -26 +Decide: -30 +Decide: -31 +Decide: -37 +Decide: -33 +Decide: -37 +Decide: -31 +Decide: -33 +Decide: -38 +Decide: -30 +Decide: -25 +Decide: -26 +Decide: -30 +Decide: -32 +Decide: -37 +Decide: -33 +Decide: -37 +Decide: -32 +Decide: -33 +Decide: -39 +Decide: -30 +Decide: -26 +Decide: -30 +Decide: -24 +Decide: -25 +Decide: -26 +Decide: -31 +Decide: -32 +Decide: -38 +Decide: -33 +Decide: -38 +Decide: -32 +Decide: -33 +Decide: -39 +Decide: -31 +Decide: -26 +Decide: -31 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -20 +Decide: -23 +Decide: -24 +Decide: -25 +Decide: -30 +Decide: -31 +Decide: -37 +Decide: -32 +Decide: -37 +Decide: -31 +Decide: -32 +Decide: -38 +Decide: -27 +Decide: -30 +Decide: -31 +Decide: -37 +Decide: -34 +Decide: -37 +Decide: -31 +Decide: -34 +Decide: -38 +Decide: -30 +Decide: -25 +Decide: -27 +Decide: -30 +Decide: -32 +Decide: -37 +Decide: -34 +Decide: -37 +Decide: -32 +Decide: -34 +Decide: -39 +Decide: -30 +Decide: -27 +Decide: -30 +Decide: -24 +Decide: -25 +Decide: -27 +Decide: -31 +Decide: -32 +Decide: -38 +Decide: -34 +Decide: -38 +Decide: -32 +Decide: -34 +Decide: -39 +Decide: -31 +Decide: -27 +Decide: -31 +Decide: -25 +Decide: -27 +Decide: -32 +Decide: -23 +Decide: -24 +Decide: -30 +Decide: -25 +Decide: -30 +Decide: -24 +Decide: -25 +Decide: -31 +Decide: -19 +Decide: -20 +Decide: -23 +Decide: -24 +Decide: -26 +Decide: -30 +Decide: -31 +Decide: -37 +Decide: -33 +Decide: -37 +Decide: -31 +Decide: -33 +Decide: -38 +Decide: -27 +Decide: -30 +Decide: -31 +Decide: -37 +Decide: -34 +Decide: -37 +Decide: -31 +Decide: -34 +Decide: -38 +Decide: -30 +Decide: -26 +Decide: -27 +Decide: -30 +Decide: -33 +Decide: -37 +Decide: -34 +Decide: -37 +Decide: -33 +Decide: -34 +Decide: -40 +Decide: -30 +Decide: -27 +Decide: -30 +Decide: -24 +Decide: -26 +Decide: -27 +Decide: -31 +Decide: -33 +Decide: -38 +Decide: -34 +Decide: -38 +Decide: -33 +Decide: -34 +Decide: -40 +Decide: -31 +Decide: -27 +Decide: -31 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -23 +Decide: -24 +Decide: -30 +Decide: -26 +Decide: -30 +Decide: -24 +Decide: -26 +Decide: -31 +Decide: -20 +Decide: -23 +Decide: -24 +Decide: -30 +Decide: -27 +Decide: -30 +Decide: -24 +Decide: -27 +Decide: -31 +Decide: -23 +Decide: -18 +Decide: -19 +Decide: -20 +Decide: -23 +Decide: -25 +Decide: -26 +Decide: -30 +Decide: -32 +Decide: -37 +Decide: -33 +Decide: -37 +Decide: -32 +Decide: -33 +Decide: -39 +Decide: -27 +Decide: -30 +Decide: -32 +Decide: -37 +Decide: -34 +Decide: -37 +Decide: -32 +Decide: -34 +Decide: -39 +Decide: -30 +Decide: -26 +Decide: -27 +Decide: -30 +Decide: -33 +Decide: -37 +Decide: -34 +Decide: -37 +Decide: -33 +Decide: -34 +Decide: -40 +Decide: -30 +Decide: -27 +Decide: -30 +Decide: -25 +Decide: -26 +Decide: -27 +Decide: -32 +Decide: -33 +Decide: -39 +Decide: -34 +Decide: -39 +Decide: -33 +Decide: -34 +Decide: -40 +Decide: -32 +Decide: -27 +Decide: -32 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -23 +Decide: -25 +Decide: -30 +Decide: -26 +Decide: -30 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -20 +Decide: -23 +Decide: -25 +Decide: -30 +Decide: -27 +Decide: -30 +Decide: -25 +Decide: -27 +Decide: -32 +Decide: -23 +Decide: -19 +Decide: -20 +Decide: -23 +Decide: -26 +Decide: -30 +Decide: -27 +Decide: -30 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -23 +Decide: -20 +Decide: -23 +Decide: -17 +Decide: -18 +Decide: -19 +Decide: -20 +Decide: -24 +Decide: -25 +Decide: -26 +Decide: -31 +Decide: -32 +Decide: -38 +Decide: -33 +Decide: -38 +Decide: -32 +Decide: -33 +Decide: -39 +Decide: -27 +Decide: -31 +Decide: -32 +Decide: -38 +Decide: -34 +Decide: -38 +Decide: -32 +Decide: -34 +Decide: -39 +Decide: -31 +Decide: -26 +Decide: -27 +Decide: -31 +Decide: -33 +Decide: -38 +Decide: -34 +Decide: -38 +Decide: -33 +Decide: -34 +Decide: -40 +Decide: -31 +Decide: -27 +Decide: -31 +Decide: -25 +Decide: -26 +Decide: -27 +Decide: -32 +Decide: -33 +Decide: -39 +Decide: -34 +Decide: -39 +Decide: -33 +Decide: -34 +Decide: -40 +Decide: -32 +Decide: -27 +Decide: -32 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -24 +Decide: -25 +Decide: -31 +Decide: -26 +Decide: -31 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -20 +Decide: -24 +Decide: -25 +Decide: -31 +Decide: -27 +Decide: -31 +Decide: -25 +Decide: -27 +Decide: -32 +Decide: -24 +Decide: -19 +Decide: -20 +Decide: -24 +Decide: -26 +Decide: -31 +Decide: -27 +Decide: -31 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -24 +Decide: -20 +Decide: -24 +Decide: -18 +Decide: -19 +Decide: -20 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -27 +Decide: -32 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -25 +Decide: -20 +Decide: -25 +Decide: -19 +Decide: -20 +Decide: -26 +Decide: -16 +Decide: -17 +Decide: -18 +Decide: -23 +Decide: -24 +Decide: -30 +Decide: -25 +Decide: -30 +Decide: -24 +Decide: -25 +Decide: -31 +Decide: -19 +Decide: -23 +Decide: -24 +Decide: -30 +Decide: -26 +Decide: -30 +Decide: -24 +Decide: -26 +Decide: -31 +Decide: -23 +Decide: -18 +Decide: -19 +Decide: -23 +Decide: -25 +Decide: -30 +Decide: -26 +Decide: -30 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -23 +Decide: -19 +Decide: -23 +Decide: -17 +Decide: -18 +Decide: -19 +Decide: -24 +Decide: -25 +Decide: -31 +Decide: -26 +Decide: -31 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -24 +Decide: -19 +Decide: -24 +Decide: -18 +Decide: -19 +Decide: -25 +Decide: -13 +Decide: -16 +Decide: -17 +Decide: -18 +Decide: -23 +Decide: -24 +Decide: -30 +Decide: -25 +Decide: -30 +Decide: -24 +Decide: -25 +Decide: -31 +Decide: -20 +Decide: -23 +Decide: -24 +Decide: -30 +Decide: -27 +Decide: -30 +Decide: -24 +Decide: -27 +Decide: -31 +Decide: -23 +Decide: -18 +Decide: -20 +Decide: -23 +Decide: -25 +Decide: -30 +Decide: -27 +Decide: -30 +Decide: -25 +Decide: -27 +Decide: -32 +Decide: -23 +Decide: -20 +Decide: -23 +Decide: -17 +Decide: -18 +Decide: -20 +Decide: -24 +Decide: -25 +Decide: -31 +Decide: -27 +Decide: -31 +Decide: -25 +Decide: -27 +Decide: -32 +Decide: -24 +Decide: -20 +Decide: -24 +Decide: -18 +Decide: -20 +Decide: -25 +Decide: -16 +Decide: -17 +Decide: -23 +Decide: -18 +Decide: -23 +Decide: -17 +Decide: -18 +Decide: -24 +Decide: -12 +Decide: -13 +Decide: -16 +Decide: -17 +Decide: -19 +Decide: -23 +Decide: -24 +Decide: -30 +Decide: -26 +Decide: -30 +Decide: -24 +Decide: -26 +Decide: -31 +Decide: -20 +Decide: -23 +Decide: -24 +Decide: -30 +Decide: -27 +Decide: -30 +Decide: -24 +Decide: -27 +Decide: -31 +Decide: -23 +Decide: -19 +Decide: -20 +Decide: -23 +Decide: -26 +Decide: -30 +Decide: -27 +Decide: -30 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -23 +Decide: -20 +Decide: -23 +Decide: -17 +Decide: -19 +Decide: -20 +Decide: -24 +Decide: -26 +Decide: -31 +Decide: -27 +Decide: -31 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -24 +Decide: -20 +Decide: -24 +Decide: -19 +Decide: -20 +Decide: -26 +Decide: -16 +Decide: -17 +Decide: -23 +Decide: -19 +Decide: -23 +Decide: -17 +Decide: -19 +Decide: -24 +Decide: -13 +Decide: -16 +Decide: -17 +Decide: -23 +Decide: -20 +Decide: -23 +Decide: -17 +Decide: -20 +Decide: -24 +Decide: -16 +Decide: -11 +Decide: -12 +Decide: -13 +Decide: -16 +Decide: -18 +Decide: -19 +Decide: -23 +Decide: -25 +Decide: -30 +Decide: -26 +Decide: -30 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -20 +Decide: -23 +Decide: -25 +Decide: -30 +Decide: -27 +Decide: -30 +Decide: -25 +Decide: -27 +Decide: -32 +Decide: -23 +Decide: -19 +Decide: -20 +Decide: -23 +Decide: -26 +Decide: -30 +Decide: -27 +Decide: -30 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -23 +Decide: -20 +Decide: -23 +Decide: -18 +Decide: -19 +Decide: -20 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -27 +Decide: -32 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -25 +Decide: -20 +Decide: -25 +Decide: -19 +Decide: -20 +Decide: -26 +Decide: -16 +Decide: -18 +Decide: -23 +Decide: -19 +Decide: -23 +Decide: -18 +Decide: -19 +Decide: -25 +Decide: -13 +Decide: -16 +Decide: -18 +Decide: -23 +Decide: -20 +Decide: -23 +Decide: -18 +Decide: -20 +Decide: -25 +Decide: -16 +Decide: -12 +Decide: -13 +Decide: -16 +Decide: -19 +Decide: -23 +Decide: -20 +Decide: -23 +Decide: -19 +Decide: -20 +Decide: -26 +Decide: -16 +Decide: -13 +Decide: -16 +Decide: -10 +Decide: -11 +Decide: -12 +Decide: -13 +Decide: -17 +Decide: -18 +Decide: -19 +Decide: -24 +Decide: -25 +Decide: -31 +Decide: -26 +Decide: -31 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -20 +Decide: -24 +Decide: -25 +Decide: -31 +Decide: -27 +Decide: -31 +Decide: -25 +Decide: -27 +Decide: -32 +Decide: -24 +Decide: -19 +Decide: -20 +Decide: -24 +Decide: -26 +Decide: -31 +Decide: -27 +Decide: -31 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -24 +Decide: -20 +Decide: -24 +Decide: -18 +Decide: -19 +Decide: -20 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -27 +Decide: -32 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -25 +Decide: -20 +Decide: -25 +Decide: -19 +Decide: -20 +Decide: -26 +Decide: -17 +Decide: -18 +Decide: -24 +Decide: -19 +Decide: -24 +Decide: -18 +Decide: -19 +Decide: -25 +Decide: -13 +Decide: -17 +Decide: -18 +Decide: -24 +Decide: -20 +Decide: -24 +Decide: -18 +Decide: -20 +Decide: -25 +Decide: -17 +Decide: -12 +Decide: -13 +Decide: -17 +Decide: -19 +Decide: -24 +Decide: -20 +Decide: -24 +Decide: -19 +Decide: -20 +Decide: -26 +Decide: -17 +Decide: -13 +Decide: -17 +Decide: -11 +Decide: -12 +Decide: -13 +Decide: -18 +Decide: -19 +Decide: -25 +Decide: -20 +Decide: -25 +Decide: -19 +Decide: -20 +Decide: -26 +Decide: -18 +Decide: -13 +Decide: -18 +Decide: -12 +Decide: -13 +Decide: -19 +Decide: -7 +Decide: -8 +Decide: -9 +Decide: -10 +Decide: -11 +Decide: -12 +Decide: -15 +Decide: -16 +Decide: -17 +Decide: -18 +Decide: -22 +Decide: -23 +Decide: -24 +Decide: -29 +Decide: -30 +Decide: -36 +Decide: -31 +Decide: -36 +Decide: -30 +Decide: -31 +Decide: -37 +Decide: -25 +Decide: -29 +Decide: -30 +Decide: -36 +Decide: -32 +Decide: -36 +Decide: -30 +Decide: -32 +Decide: -37 +Decide: -29 +Decide: -24 +Decide: -25 +Decide: -29 +Decide: -31 +Decide: -36 +Decide: -32 +Decide: -36 +Decide: -31 +Decide: -32 +Decide: -38 +Decide: -29 +Decide: -25 +Decide: -29 +Decide: -23 +Decide: -24 +Decide: -25 +Decide: -30 +Decide: -31 +Decide: -37 +Decide: -32 +Decide: -37 +Decide: -31 +Decide: -32 +Decide: -38 +Decide: -30 +Decide: -25 +Decide: -30 +Decide: -24 +Decide: -25 +Decide: -31 +Decide: -19 +Decide: -22 +Decide: -23 +Decide: -24 +Decide: -29 +Decide: -30 +Decide: -36 +Decide: -31 +Decide: -36 +Decide: -30 +Decide: -31 +Decide: -37 +Decide: -26 +Decide: -29 +Decide: -30 +Decide: -36 +Decide: -33 +Decide: -36 +Decide: -30 +Decide: -33 +Decide: -37 +Decide: -29 +Decide: -24 +Decide: -26 +Decide: -29 +Decide: -31 +Decide: -36 +Decide: -33 +Decide: -36 +Decide: -31 +Decide: -33 +Decide: -38 +Decide: -29 +Decide: -26 +Decide: -29 +Decide: -23 +Decide: -24 +Decide: -26 +Decide: -30 +Decide: -31 +Decide: -37 +Decide: -33 +Decide: -37 +Decide: -31 +Decide: -33 +Decide: -38 +Decide: -30 +Decide: -26 +Decide: -30 +Decide: -24 +Decide: -26 +Decide: -31 +Decide: -22 +Decide: -23 +Decide: -29 +Decide: -24 +Decide: -29 +Decide: -23 +Decide: -24 +Decide: -30 +Decide: -18 +Decide: -19 +Decide: -22 +Decide: -23 +Decide: -25 +Decide: -29 +Decide: -30 +Decide: -36 +Decide: -32 +Decide: -36 +Decide: -30 +Decide: -32 +Decide: -37 +Decide: -26 +Decide: -29 +Decide: -30 +Decide: -36 +Decide: -33 +Decide: -36 +Decide: -30 +Decide: -33 +Decide: -37 +Decide: -29 +Decide: -25 +Decide: -26 +Decide: -29 +Decide: -32 +Decide: -36 +Decide: -33 +Decide: -36 +Decide: -32 +Decide: -33 +Decide: -39 +Decide: -29 +Decide: -26 +Decide: -29 +Decide: -23 +Decide: -25 +Decide: -26 +Decide: -30 +Decide: -32 +Decide: -37 +Decide: -33 +Decide: -37 +Decide: -32 +Decide: -33 +Decide: -39 +Decide: -30 +Decide: -26 +Decide: -30 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -22 +Decide: -23 +Decide: -29 +Decide: -25 +Decide: -29 +Decide: -23 +Decide: -25 +Decide: -30 +Decide: -19 +Decide: -22 +Decide: -23 +Decide: -29 +Decide: -26 +Decide: -29 +Decide: -23 +Decide: -26 +Decide: -30 +Decide: -22 +Decide: -17 +Decide: -18 +Decide: -19 +Decide: -22 +Decide: -24 +Decide: -25 +Decide: -29 +Decide: -31 +Decide: -36 +Decide: -32 +Decide: -36 +Decide: -31 +Decide: -32 +Decide: -38 +Decide: -26 +Decide: -29 +Decide: -31 +Decide: -36 +Decide: -33 +Decide: -36 +Decide: -31 +Decide: -33 +Decide: -38 +Decide: -29 +Decide: -25 +Decide: -26 +Decide: -29 +Decide: -32 +Decide: -36 +Decide: -33 +Decide: -36 +Decide: -32 +Decide: -33 +Decide: -39 +Decide: -29 +Decide: -26 +Decide: -29 +Decide: -24 +Decide: -25 +Decide: -26 +Decide: -31 +Decide: -32 +Decide: -38 +Decide: -33 +Decide: -38 +Decide: -32 +Decide: -33 +Decide: -39 +Decide: -31 +Decide: -26 +Decide: -31 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -22 +Decide: -24 +Decide: -29 +Decide: -25 +Decide: -29 +Decide: -24 +Decide: -25 +Decide: -31 +Decide: -19 +Decide: -22 +Decide: -24 +Decide: -29 +Decide: -26 +Decide: -29 +Decide: -24 +Decide: -26 +Decide: -31 +Decide: -22 +Decide: -18 +Decide: -19 +Decide: -22 +Decide: -25 +Decide: -29 +Decide: -26 +Decide: -29 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -22 +Decide: -19 +Decide: -22 +Decide: -16 +Decide: -17 +Decide: -18 +Decide: -19 +Decide: -23 +Decide: -24 +Decide: -25 +Decide: -30 +Decide: -31 +Decide: -37 +Decide: -32 +Decide: -37 +Decide: -31 +Decide: -32 +Decide: -38 +Decide: -26 +Decide: -30 +Decide: -31 +Decide: -37 +Decide: -33 +Decide: -37 +Decide: -31 +Decide: -33 +Decide: -38 +Decide: -30 +Decide: -25 +Decide: -26 +Decide: -30 +Decide: -32 +Decide: -37 +Decide: -33 +Decide: -37 +Decide: -32 +Decide: -33 +Decide: -39 +Decide: -30 +Decide: -26 +Decide: -30 +Decide: -24 +Decide: -25 +Decide: -26 +Decide: -31 +Decide: -32 +Decide: -38 +Decide: -33 +Decide: -38 +Decide: -32 +Decide: -33 +Decide: -39 +Decide: -31 +Decide: -26 +Decide: -31 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -23 +Decide: -24 +Decide: -30 +Decide: -25 +Decide: -30 +Decide: -24 +Decide: -25 +Decide: -31 +Decide: -19 +Decide: -23 +Decide: -24 +Decide: -30 +Decide: -26 +Decide: -30 +Decide: -24 +Decide: -26 +Decide: -31 +Decide: -23 +Decide: -18 +Decide: -19 +Decide: -23 +Decide: -25 +Decide: -30 +Decide: -26 +Decide: -30 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -23 +Decide: -19 +Decide: -23 +Decide: -17 +Decide: -18 +Decide: -19 +Decide: -24 +Decide: -25 +Decide: -31 +Decide: -26 +Decide: -31 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -24 +Decide: -19 +Decide: -24 +Decide: -18 +Decide: -19 +Decide: -25 +Decide: -14 +Decide: -15 +Decide: -16 +Decide: -17 +Decide: -18 +Decide: -22 +Decide: -23 +Decide: -24 +Decide: -29 +Decide: -30 +Decide: -36 +Decide: -31 +Decide: -36 +Decide: -30 +Decide: -31 +Decide: -37 +Decide: -25 +Decide: -29 +Decide: -30 +Decide: -36 +Decide: -32 +Decide: -36 +Decide: -30 +Decide: -32 +Decide: -37 +Decide: -29 +Decide: -24 +Decide: -25 +Decide: -29 +Decide: -31 +Decide: -36 +Decide: -32 +Decide: -36 +Decide: -31 +Decide: -32 +Decide: -38 +Decide: -29 +Decide: -25 +Decide: -29 +Decide: -23 +Decide: -24 +Decide: -25 +Decide: -30 +Decide: -31 +Decide: -37 +Decide: -32 +Decide: -37 +Decide: -31 +Decide: -32 +Decide: -38 +Decide: -30 +Decide: -25 +Decide: -30 +Decide: -24 +Decide: -25 +Decide: -31 +Decide: -21 +Decide: -22 +Decide: -23 +Decide: -24 +Decide: -29 +Decide: -30 +Decide: -36 +Decide: -31 +Decide: -36 +Decide: -30 +Decide: -31 +Decide: -37 +Decide: -28 +Decide: -29 +Decide: -30 +Decide: -36 +Decide: -35 +Decide: -36 +Decide: -30 +Decide: -35 +Decide: -37 +Decide: -29 +Decide: -24 +Decide: -28 +Decide: -29 +Decide: -31 +Decide: -36 +Decide: -35 +Decide: -36 +Decide: -31 +Decide: -35 +Decide: -38 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -23 +Decide: -24 +Decide: -28 +Decide: -30 +Decide: -31 +Decide: -37 +Decide: -35 +Decide: -37 +Decide: -31 +Decide: -35 +Decide: -38 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -24 +Decide: -28 +Decide: -31 +Decide: -22 +Decide: -23 +Decide: -29 +Decide: -24 +Decide: -29 +Decide: -23 +Decide: -24 +Decide: -30 +Decide: -18 +Decide: -21 +Decide: -22 +Decide: -23 +Decide: -25 +Decide: -29 +Decide: -30 +Decide: -36 +Decide: -32 +Decide: -36 +Decide: -30 +Decide: -32 +Decide: -37 +Decide: -28 +Decide: -29 +Decide: -30 +Decide: -36 +Decide: -35 +Decide: -36 +Decide: -30 +Decide: -35 +Decide: -37 +Decide: -29 +Decide: -25 +Decide: -28 +Decide: -29 +Decide: -32 +Decide: -36 +Decide: -35 +Decide: -36 +Decide: -32 +Decide: -35 +Decide: -39 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -23 +Decide: -25 +Decide: -28 +Decide: -30 +Decide: -32 +Decide: -37 +Decide: -35 +Decide: -37 +Decide: -32 +Decide: -35 +Decide: -39 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -25 +Decide: -28 +Decide: -32 +Decide: -22 +Decide: -23 +Decide: -29 +Decide: -25 +Decide: -29 +Decide: -23 +Decide: -25 +Decide: -30 +Decide: -21 +Decide: -22 +Decide: -23 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -23 +Decide: -28 +Decide: -30 +Decide: -22 +Decide: -17 +Decide: -18 +Decide: -21 +Decide: -22 +Decide: -24 +Decide: -25 +Decide: -29 +Decide: -31 +Decide: -36 +Decide: -32 +Decide: -36 +Decide: -31 +Decide: -32 +Decide: -38 +Decide: -28 +Decide: -29 +Decide: -31 +Decide: -36 +Decide: -35 +Decide: -36 +Decide: -31 +Decide: -35 +Decide: -38 +Decide: -29 +Decide: -25 +Decide: -28 +Decide: -29 +Decide: -32 +Decide: -36 +Decide: -35 +Decide: -36 +Decide: -32 +Decide: -35 +Decide: -39 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -24 +Decide: -25 +Decide: -28 +Decide: -31 +Decide: -32 +Decide: -38 +Decide: -35 +Decide: -38 +Decide: -32 +Decide: -35 +Decide: -39 +Decide: -31 +Decide: -28 +Decide: -31 +Decide: -25 +Decide: -28 +Decide: -32 +Decide: -22 +Decide: -24 +Decide: -29 +Decide: -25 +Decide: -29 +Decide: -24 +Decide: -25 +Decide: -31 +Decide: -21 +Decide: -22 +Decide: -24 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -24 +Decide: -28 +Decide: -31 +Decide: -22 +Decide: -18 +Decide: -21 +Decide: -22 +Decide: -25 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -25 +Decide: -28 +Decide: -32 +Decide: -22 +Decide: -21 +Decide: -22 +Decide: -16 +Decide: -17 +Decide: -18 +Decide: -21 +Decide: -23 +Decide: -24 +Decide: -25 +Decide: -30 +Decide: -31 +Decide: -37 +Decide: -32 +Decide: -37 +Decide: -31 +Decide: -32 +Decide: -38 +Decide: -28 +Decide: -30 +Decide: -31 +Decide: -37 +Decide: -35 +Decide: -37 +Decide: -31 +Decide: -35 +Decide: -38 +Decide: -30 +Decide: -25 +Decide: -28 +Decide: -30 +Decide: -32 +Decide: -37 +Decide: -35 +Decide: -37 +Decide: -32 +Decide: -35 +Decide: -39 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -24 +Decide: -25 +Decide: -28 +Decide: -31 +Decide: -32 +Decide: -38 +Decide: -35 +Decide: -38 +Decide: -32 +Decide: -35 +Decide: -39 +Decide: -31 +Decide: -28 +Decide: -31 +Decide: -25 +Decide: -28 +Decide: -32 +Decide: -23 +Decide: -24 +Decide: -30 +Decide: -25 +Decide: -30 +Decide: -24 +Decide: -25 +Decide: -31 +Decide: -21 +Decide: -23 +Decide: -24 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -24 +Decide: -28 +Decide: -31 +Decide: -23 +Decide: -18 +Decide: -21 +Decide: -23 +Decide: -25 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -25 +Decide: -28 +Decide: -32 +Decide: -23 +Decide: -21 +Decide: -23 +Decide: -17 +Decide: -18 +Decide: -21 +Decide: -24 +Decide: -25 +Decide: -31 +Decide: -28 +Decide: -31 +Decide: -25 +Decide: -28 +Decide: -32 +Decide: -24 +Decide: -21 +Decide: -24 +Decide: -18 +Decide: -21 +Decide: -25 +Decide: -15 +Decide: -16 +Decide: -17 +Decide: -22 +Decide: -23 +Decide: -29 +Decide: -24 +Decide: -29 +Decide: -23 +Decide: -24 +Decide: -30 +Decide: -18 +Decide: -22 +Decide: -23 +Decide: -29 +Decide: -25 +Decide: -29 +Decide: -23 +Decide: -25 +Decide: -30 +Decide: -22 +Decide: -17 +Decide: -18 +Decide: -22 +Decide: -24 +Decide: -29 +Decide: -25 +Decide: -29 +Decide: -24 +Decide: -25 +Decide: -31 +Decide: -22 +Decide: -18 +Decide: -22 +Decide: -16 +Decide: -17 +Decide: -18 +Decide: -23 +Decide: -24 +Decide: -30 +Decide: -25 +Decide: -30 +Decide: -24 +Decide: -25 +Decide: -31 +Decide: -23 +Decide: -18 +Decide: -23 +Decide: -17 +Decide: -18 +Decide: -24 +Decide: -12 +Decide: -14 +Decide: -15 +Decide: -16 +Decide: -17 +Decide: -19 +Decide: -22 +Decide: -23 +Decide: -24 +Decide: -29 +Decide: -30 +Decide: -36 +Decide: -31 +Decide: -36 +Decide: -30 +Decide: -31 +Decide: -37 +Decide: -26 +Decide: -29 +Decide: -30 +Decide: -36 +Decide: -33 +Decide: -36 +Decide: -30 +Decide: -33 +Decide: -37 +Decide: -29 +Decide: -24 +Decide: -26 +Decide: -29 +Decide: -31 +Decide: -36 +Decide: -33 +Decide: -36 +Decide: -31 +Decide: -33 +Decide: -38 +Decide: -29 +Decide: -26 +Decide: -29 +Decide: -23 +Decide: -24 +Decide: -26 +Decide: -30 +Decide: -31 +Decide: -37 +Decide: -33 +Decide: -37 +Decide: -31 +Decide: -33 +Decide: -38 +Decide: -30 +Decide: -26 +Decide: -30 +Decide: -24 +Decide: -26 +Decide: -31 +Decide: -21 +Decide: -22 +Decide: -23 +Decide: -24 +Decide: -29 +Decide: -30 +Decide: -36 +Decide: -31 +Decide: -36 +Decide: -30 +Decide: -31 +Decide: -37 +Decide: -28 +Decide: -29 +Decide: -30 +Decide: -36 +Decide: -35 +Decide: -36 +Decide: -30 +Decide: -35 +Decide: -37 +Decide: -29 +Decide: -24 +Decide: -28 +Decide: -29 +Decide: -31 +Decide: -36 +Decide: -35 +Decide: -36 +Decide: -31 +Decide: -35 +Decide: -38 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -23 +Decide: -24 +Decide: -28 +Decide: -30 +Decide: -31 +Decide: -37 +Decide: -35 +Decide: -37 +Decide: -31 +Decide: -35 +Decide: -38 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -24 +Decide: -28 +Decide: -31 +Decide: -22 +Decide: -23 +Decide: -29 +Decide: -24 +Decide: -29 +Decide: -23 +Decide: -24 +Decide: -30 +Decide: -19 +Decide: -21 +Decide: -22 +Decide: -23 +Decide: -26 +Decide: -29 +Decide: -30 +Decide: -36 +Decide: -33 +Decide: -36 +Decide: -30 +Decide: -33 +Decide: -37 +Decide: -28 +Decide: -29 +Decide: -30 +Decide: -36 +Decide: -35 +Decide: -36 +Decide: -30 +Decide: -35 +Decide: -37 +Decide: -29 +Decide: -26 +Decide: -28 +Decide: -29 +Decide: -33 +Decide: -36 +Decide: -35 +Decide: -36 +Decide: -33 +Decide: -35 +Decide: -40 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -23 +Decide: -26 +Decide: -28 +Decide: -30 +Decide: -33 +Decide: -37 +Decide: -35 +Decide: -37 +Decide: -33 +Decide: -35 +Decide: -40 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -26 +Decide: -28 +Decide: -33 +Decide: -22 +Decide: -23 +Decide: -29 +Decide: -26 +Decide: -29 +Decide: -23 +Decide: -26 +Decide: -30 +Decide: -21 +Decide: -22 +Decide: -23 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -23 +Decide: -28 +Decide: -30 +Decide: -22 +Decide: -17 +Decide: -19 +Decide: -21 +Decide: -22 +Decide: -24 +Decide: -26 +Decide: -29 +Decide: -31 +Decide: -36 +Decide: -33 +Decide: -36 +Decide: -31 +Decide: -33 +Decide: -38 +Decide: -28 +Decide: -29 +Decide: -31 +Decide: -36 +Decide: -35 +Decide: -36 +Decide: -31 +Decide: -35 +Decide: -38 +Decide: -29 +Decide: -26 +Decide: -28 +Decide: -29 +Decide: -33 +Decide: -36 +Decide: -35 +Decide: -36 +Decide: -33 +Decide: -35 +Decide: -40 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -24 +Decide: -26 +Decide: -28 +Decide: -31 +Decide: -33 +Decide: -38 +Decide: -35 +Decide: -38 +Decide: -33 +Decide: -35 +Decide: -40 +Decide: -31 +Decide: -28 +Decide: -31 +Decide: -26 +Decide: -28 +Decide: -33 +Decide: -22 +Decide: -24 +Decide: -29 +Decide: -26 +Decide: -29 +Decide: -24 +Decide: -26 +Decide: -31 +Decide: -21 +Decide: -22 +Decide: -24 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -24 +Decide: -28 +Decide: -31 +Decide: -22 +Decide: -19 +Decide: -21 +Decide: -22 +Decide: -26 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -26 +Decide: -28 +Decide: -33 +Decide: -22 +Decide: -21 +Decide: -22 +Decide: -16 +Decide: -17 +Decide: -19 +Decide: -21 +Decide: -23 +Decide: -24 +Decide: -26 +Decide: -30 +Decide: -31 +Decide: -37 +Decide: -33 +Decide: -37 +Decide: -31 +Decide: -33 +Decide: -38 +Decide: -28 +Decide: -30 +Decide: -31 +Decide: -37 +Decide: -35 +Decide: -37 +Decide: -31 +Decide: -35 +Decide: -38 +Decide: -30 +Decide: -26 +Decide: -28 +Decide: -30 +Decide: -33 +Decide: -37 +Decide: -35 +Decide: -37 +Decide: -33 +Decide: -35 +Decide: -40 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -24 +Decide: -26 +Decide: -28 +Decide: -31 +Decide: -33 +Decide: -38 +Decide: -35 +Decide: -38 +Decide: -33 +Decide: -35 +Decide: -40 +Decide: -31 +Decide: -28 +Decide: -31 +Decide: -26 +Decide: -28 +Decide: -33 +Decide: -23 +Decide: -24 +Decide: -30 +Decide: -26 +Decide: -30 +Decide: -24 +Decide: -26 +Decide: -31 +Decide: -21 +Decide: -23 +Decide: -24 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -24 +Decide: -28 +Decide: -31 +Decide: -23 +Decide: -19 +Decide: -21 +Decide: -23 +Decide: -26 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -26 +Decide: -28 +Decide: -33 +Decide: -23 +Decide: -21 +Decide: -23 +Decide: -17 +Decide: -19 +Decide: -21 +Decide: -24 +Decide: -26 +Decide: -31 +Decide: -28 +Decide: -31 +Decide: -26 +Decide: -28 +Decide: -33 +Decide: -24 +Decide: -21 +Decide: -24 +Decide: -19 +Decide: -21 +Decide: -26 +Decide: -15 +Decide: -16 +Decide: -17 +Decide: -22 +Decide: -23 +Decide: -29 +Decide: -24 +Decide: -29 +Decide: -23 +Decide: -24 +Decide: -30 +Decide: -19 +Decide: -22 +Decide: -23 +Decide: -29 +Decide: -26 +Decide: -29 +Decide: -23 +Decide: -26 +Decide: -30 +Decide: -22 +Decide: -17 +Decide: -19 +Decide: -22 +Decide: -24 +Decide: -29 +Decide: -26 +Decide: -29 +Decide: -24 +Decide: -26 +Decide: -31 +Decide: -22 +Decide: -19 +Decide: -22 +Decide: -16 +Decide: -17 +Decide: -19 +Decide: -23 +Decide: -24 +Decide: -30 +Decide: -26 +Decide: -30 +Decide: -24 +Decide: -26 +Decide: -31 +Decide: -23 +Decide: -19 +Decide: -23 +Decide: -17 +Decide: -19 +Decide: -24 +Decide: -14 +Decide: -15 +Decide: -16 +Decide: -17 +Decide: -22 +Decide: -23 +Decide: -29 +Decide: -24 +Decide: -29 +Decide: -23 +Decide: -24 +Decide: -30 +Decide: -21 +Decide: -22 +Decide: -23 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -23 +Decide: -28 +Decide: -30 +Decide: -22 +Decide: -17 +Decide: -21 +Decide: -22 +Decide: -24 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -24 +Decide: -28 +Decide: -31 +Decide: -22 +Decide: -21 +Decide: -22 +Decide: -16 +Decide: -17 +Decide: -21 +Decide: -23 +Decide: -24 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -24 +Decide: -28 +Decide: -31 +Decide: -23 +Decide: -21 +Decide: -23 +Decide: -17 +Decide: -21 +Decide: -24 +Decide: -15 +Decide: -16 +Decide: -22 +Decide: -17 +Decide: -22 +Decide: -16 +Decide: -17 +Decide: -23 +Decide: -11 +Decide: -12 +Decide: -14 +Decide: -15 +Decide: -16 +Decide: -18 +Decide: -19 +Decide: -22 +Decide: -23 +Decide: -25 +Decide: -29 +Decide: -30 +Decide: -36 +Decide: -32 +Decide: -36 +Decide: -30 +Decide: -32 +Decide: -37 +Decide: -26 +Decide: -29 +Decide: -30 +Decide: -36 +Decide: -33 +Decide: -36 +Decide: -30 +Decide: -33 +Decide: -37 +Decide: -29 +Decide: -25 +Decide: -26 +Decide: -29 +Decide: -32 +Decide: -36 +Decide: -33 +Decide: -36 +Decide: -32 +Decide: -33 +Decide: -39 +Decide: -29 +Decide: -26 +Decide: -29 +Decide: -23 +Decide: -25 +Decide: -26 +Decide: -30 +Decide: -32 +Decide: -37 +Decide: -33 +Decide: -37 +Decide: -32 +Decide: -33 +Decide: -39 +Decide: -30 +Decide: -26 +Decide: -30 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -21 +Decide: -22 +Decide: -23 +Decide: -25 +Decide: -29 +Decide: -30 +Decide: -36 +Decide: -32 +Decide: -36 +Decide: -30 +Decide: -32 +Decide: -37 +Decide: -28 +Decide: -29 +Decide: -30 +Decide: -36 +Decide: -35 +Decide: -36 +Decide: -30 +Decide: -35 +Decide: -37 +Decide: -29 +Decide: -25 +Decide: -28 +Decide: -29 +Decide: -32 +Decide: -36 +Decide: -35 +Decide: -36 +Decide: -32 +Decide: -35 +Decide: -39 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -23 +Decide: -25 +Decide: -28 +Decide: -30 +Decide: -32 +Decide: -37 +Decide: -35 +Decide: -37 +Decide: -32 +Decide: -35 +Decide: -39 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -25 +Decide: -28 +Decide: -32 +Decide: -22 +Decide: -23 +Decide: -29 +Decide: -25 +Decide: -29 +Decide: -23 +Decide: -25 +Decide: -30 +Decide: -19 +Decide: -21 +Decide: -22 +Decide: -23 +Decide: -26 +Decide: -29 +Decide: -30 +Decide: -36 +Decide: -33 +Decide: -36 +Decide: -30 +Decide: -33 +Decide: -37 +Decide: -28 +Decide: -29 +Decide: -30 +Decide: -36 +Decide: -35 +Decide: -36 +Decide: -30 +Decide: -35 +Decide: -37 +Decide: -29 +Decide: -26 +Decide: -28 +Decide: -29 +Decide: -33 +Decide: -36 +Decide: -35 +Decide: -36 +Decide: -33 +Decide: -35 +Decide: -40 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -23 +Decide: -26 +Decide: -28 +Decide: -30 +Decide: -33 +Decide: -37 +Decide: -35 +Decide: -37 +Decide: -33 +Decide: -35 +Decide: -40 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -26 +Decide: -28 +Decide: -33 +Decide: -22 +Decide: -23 +Decide: -29 +Decide: -26 +Decide: -29 +Decide: -23 +Decide: -26 +Decide: -30 +Decide: -21 +Decide: -22 +Decide: -23 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -23 +Decide: -28 +Decide: -30 +Decide: -22 +Decide: -18 +Decide: -19 +Decide: -21 +Decide: -22 +Decide: -25 +Decide: -26 +Decide: -29 +Decide: -32 +Decide: -36 +Decide: -33 +Decide: -36 +Decide: -32 +Decide: -33 +Decide: -39 +Decide: -28 +Decide: -29 +Decide: -32 +Decide: -36 +Decide: -35 +Decide: -36 +Decide: -32 +Decide: -35 +Decide: -39 +Decide: -29 +Decide: -26 +Decide: -28 +Decide: -29 +Decide: -33 +Decide: -36 +Decide: -35 +Decide: -36 +Decide: -33 +Decide: -35 +Decide: -40 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -25 +Decide: -26 +Decide: -28 +Decide: -32 +Decide: -33 +Decide: -39 +Decide: -35 +Decide: -39 +Decide: -33 +Decide: -35 +Decide: -40 +Decide: -32 +Decide: -28 +Decide: -32 +Decide: -26 +Decide: -28 +Decide: -33 +Decide: -22 +Decide: -25 +Decide: -29 +Decide: -26 +Decide: -29 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -21 +Decide: -22 +Decide: -25 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -25 +Decide: -28 +Decide: -32 +Decide: -22 +Decide: -19 +Decide: -21 +Decide: -22 +Decide: -26 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -26 +Decide: -28 +Decide: -33 +Decide: -22 +Decide: -21 +Decide: -22 +Decide: -16 +Decide: -18 +Decide: -19 +Decide: -21 +Decide: -23 +Decide: -25 +Decide: -26 +Decide: -30 +Decide: -32 +Decide: -37 +Decide: -33 +Decide: -37 +Decide: -32 +Decide: -33 +Decide: -39 +Decide: -28 +Decide: -30 +Decide: -32 +Decide: -37 +Decide: -35 +Decide: -37 +Decide: -32 +Decide: -35 +Decide: -39 +Decide: -30 +Decide: -26 +Decide: -28 +Decide: -30 +Decide: -33 +Decide: -37 +Decide: -35 +Decide: -37 +Decide: -33 +Decide: -35 +Decide: -40 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -25 +Decide: -26 +Decide: -28 +Decide: -32 +Decide: -33 +Decide: -39 +Decide: -35 +Decide: -39 +Decide: -33 +Decide: -35 +Decide: -40 +Decide: -32 +Decide: -28 +Decide: -32 +Decide: -26 +Decide: -28 +Decide: -33 +Decide: -23 +Decide: -25 +Decide: -30 +Decide: -26 +Decide: -30 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -21 +Decide: -23 +Decide: -25 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -25 +Decide: -28 +Decide: -32 +Decide: -23 +Decide: -19 +Decide: -21 +Decide: -23 +Decide: -26 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -26 +Decide: -28 +Decide: -33 +Decide: -23 +Decide: -21 +Decide: -23 +Decide: -18 +Decide: -19 +Decide: -21 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -28 +Decide: -32 +Decide: -26 +Decide: -28 +Decide: -33 +Decide: -25 +Decide: -21 +Decide: -25 +Decide: -19 +Decide: -21 +Decide: -26 +Decide: -15 +Decide: -16 +Decide: -18 +Decide: -22 +Decide: -23 +Decide: -29 +Decide: -25 +Decide: -29 +Decide: -23 +Decide: -25 +Decide: -30 +Decide: -19 +Decide: -22 +Decide: -23 +Decide: -29 +Decide: -26 +Decide: -29 +Decide: -23 +Decide: -26 +Decide: -30 +Decide: -22 +Decide: -18 +Decide: -19 +Decide: -22 +Decide: -25 +Decide: -29 +Decide: -26 +Decide: -29 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -22 +Decide: -19 +Decide: -22 +Decide: -16 +Decide: -18 +Decide: -19 +Decide: -23 +Decide: -25 +Decide: -30 +Decide: -26 +Decide: -30 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -23 +Decide: -19 +Decide: -23 +Decide: -18 +Decide: -19 +Decide: -25 +Decide: -14 +Decide: -15 +Decide: -16 +Decide: -18 +Decide: -22 +Decide: -23 +Decide: -29 +Decide: -25 +Decide: -29 +Decide: -23 +Decide: -25 +Decide: -30 +Decide: -21 +Decide: -22 +Decide: -23 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -23 +Decide: -28 +Decide: -30 +Decide: -22 +Decide: -18 +Decide: -21 +Decide: -22 +Decide: -25 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -25 +Decide: -28 +Decide: -32 +Decide: -22 +Decide: -21 +Decide: -22 +Decide: -16 +Decide: -18 +Decide: -21 +Decide: -23 +Decide: -25 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -25 +Decide: -28 +Decide: -32 +Decide: -23 +Decide: -21 +Decide: -23 +Decide: -18 +Decide: -21 +Decide: -25 +Decide: -15 +Decide: -16 +Decide: -22 +Decide: -18 +Decide: -22 +Decide: -16 +Decide: -18 +Decide: -23 +Decide: -12 +Decide: -14 +Decide: -15 +Decide: -16 +Decide: -19 +Decide: -22 +Decide: -23 +Decide: -29 +Decide: -26 +Decide: -29 +Decide: -23 +Decide: -26 +Decide: -30 +Decide: -21 +Decide: -22 +Decide: -23 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -23 +Decide: -28 +Decide: -30 +Decide: -22 +Decide: -19 +Decide: -21 +Decide: -22 +Decide: -26 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -26 +Decide: -28 +Decide: -33 +Decide: -22 +Decide: -21 +Decide: -22 +Decide: -16 +Decide: -19 +Decide: -21 +Decide: -23 +Decide: -26 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -26 +Decide: -28 +Decide: -33 +Decide: -23 +Decide: -21 +Decide: -23 +Decide: -19 +Decide: -21 +Decide: -26 +Decide: -15 +Decide: -16 +Decide: -22 +Decide: -19 +Decide: -22 +Decide: -16 +Decide: -19 +Decide: -23 +Decide: -14 +Decide: -15 +Decide: -16 +Decide: -22 +Decide: -21 +Decide: -22 +Decide: -16 +Decide: -21 +Decide: -23 +Decide: -15 +Decide: -10 +Decide: -11 +Decide: -12 +Decide: -14 +Decide: -15 +Decide: -17 +Decide: -18 +Decide: -19 +Decide: -22 +Decide: -24 +Decide: -25 +Decide: -29 +Decide: -31 +Decide: -36 +Decide: -32 +Decide: -36 +Decide: -31 +Decide: -32 +Decide: -38 +Decide: -26 +Decide: -29 +Decide: -31 +Decide: -36 +Decide: -33 +Decide: -36 +Decide: -31 +Decide: -33 +Decide: -38 +Decide: -29 +Decide: -25 +Decide: -26 +Decide: -29 +Decide: -32 +Decide: -36 +Decide: -33 +Decide: -36 +Decide: -32 +Decide: -33 +Decide: -39 +Decide: -29 +Decide: -26 +Decide: -29 +Decide: -24 +Decide: -25 +Decide: -26 +Decide: -31 +Decide: -32 +Decide: -38 +Decide: -33 +Decide: -38 +Decide: -32 +Decide: -33 +Decide: -39 +Decide: -31 +Decide: -26 +Decide: -31 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -21 +Decide: -22 +Decide: -24 +Decide: -25 +Decide: -29 +Decide: -31 +Decide: -36 +Decide: -32 +Decide: -36 +Decide: -31 +Decide: -32 +Decide: -38 +Decide: -28 +Decide: -29 +Decide: -31 +Decide: -36 +Decide: -35 +Decide: -36 +Decide: -31 +Decide: -35 +Decide: -38 +Decide: -29 +Decide: -25 +Decide: -28 +Decide: -29 +Decide: -32 +Decide: -36 +Decide: -35 +Decide: -36 +Decide: -32 +Decide: -35 +Decide: -39 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -24 +Decide: -25 +Decide: -28 +Decide: -31 +Decide: -32 +Decide: -38 +Decide: -35 +Decide: -38 +Decide: -32 +Decide: -35 +Decide: -39 +Decide: -31 +Decide: -28 +Decide: -31 +Decide: -25 +Decide: -28 +Decide: -32 +Decide: -22 +Decide: -24 +Decide: -29 +Decide: -25 +Decide: -29 +Decide: -24 +Decide: -25 +Decide: -31 +Decide: -19 +Decide: -21 +Decide: -22 +Decide: -24 +Decide: -26 +Decide: -29 +Decide: -31 +Decide: -36 +Decide: -33 +Decide: -36 +Decide: -31 +Decide: -33 +Decide: -38 +Decide: -28 +Decide: -29 +Decide: -31 +Decide: -36 +Decide: -35 +Decide: -36 +Decide: -31 +Decide: -35 +Decide: -38 +Decide: -29 +Decide: -26 +Decide: -28 +Decide: -29 +Decide: -33 +Decide: -36 +Decide: -35 +Decide: -36 +Decide: -33 +Decide: -35 +Decide: -40 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -24 +Decide: -26 +Decide: -28 +Decide: -31 +Decide: -33 +Decide: -38 +Decide: -35 +Decide: -38 +Decide: -33 +Decide: -35 +Decide: -40 +Decide: -31 +Decide: -28 +Decide: -31 +Decide: -26 +Decide: -28 +Decide: -33 +Decide: -22 +Decide: -24 +Decide: -29 +Decide: -26 +Decide: -29 +Decide: -24 +Decide: -26 +Decide: -31 +Decide: -21 +Decide: -22 +Decide: -24 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -24 +Decide: -28 +Decide: -31 +Decide: -22 +Decide: -18 +Decide: -19 +Decide: -21 +Decide: -22 +Decide: -25 +Decide: -26 +Decide: -29 +Decide: -32 +Decide: -36 +Decide: -33 +Decide: -36 +Decide: -32 +Decide: -33 +Decide: -39 +Decide: -28 +Decide: -29 +Decide: -32 +Decide: -36 +Decide: -35 +Decide: -36 +Decide: -32 +Decide: -35 +Decide: -39 +Decide: -29 +Decide: -26 +Decide: -28 +Decide: -29 +Decide: -33 +Decide: -36 +Decide: -35 +Decide: -36 +Decide: -33 +Decide: -35 +Decide: -40 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -25 +Decide: -26 +Decide: -28 +Decide: -32 +Decide: -33 +Decide: -39 +Decide: -35 +Decide: -39 +Decide: -33 +Decide: -35 +Decide: -40 +Decide: -32 +Decide: -28 +Decide: -32 +Decide: -26 +Decide: -28 +Decide: -33 +Decide: -22 +Decide: -25 +Decide: -29 +Decide: -26 +Decide: -29 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -21 +Decide: -22 +Decide: -25 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -25 +Decide: -28 +Decide: -32 +Decide: -22 +Decide: -19 +Decide: -21 +Decide: -22 +Decide: -26 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -26 +Decide: -28 +Decide: -33 +Decide: -22 +Decide: -21 +Decide: -22 +Decide: -17 +Decide: -18 +Decide: -19 +Decide: -21 +Decide: -24 +Decide: -25 +Decide: -26 +Decide: -31 +Decide: -32 +Decide: -38 +Decide: -33 +Decide: -38 +Decide: -32 +Decide: -33 +Decide: -39 +Decide: -28 +Decide: -31 +Decide: -32 +Decide: -38 +Decide: -35 +Decide: -38 +Decide: -32 +Decide: -35 +Decide: -39 +Decide: -31 +Decide: -26 +Decide: -28 +Decide: -31 +Decide: -33 +Decide: -38 +Decide: -35 +Decide: -38 +Decide: -33 +Decide: -35 +Decide: -40 +Decide: -31 +Decide: -28 +Decide: -31 +Decide: -25 +Decide: -26 +Decide: -28 +Decide: -32 +Decide: -33 +Decide: -39 +Decide: -35 +Decide: -39 +Decide: -33 +Decide: -35 +Decide: -40 +Decide: -32 +Decide: -28 +Decide: -32 +Decide: -26 +Decide: -28 +Decide: -33 +Decide: -24 +Decide: -25 +Decide: -31 +Decide: -26 +Decide: -31 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -21 +Decide: -24 +Decide: -25 +Decide: -31 +Decide: -28 +Decide: -31 +Decide: -25 +Decide: -28 +Decide: -32 +Decide: -24 +Decide: -19 +Decide: -21 +Decide: -24 +Decide: -26 +Decide: -31 +Decide: -28 +Decide: -31 +Decide: -26 +Decide: -28 +Decide: -33 +Decide: -24 +Decide: -21 +Decide: -24 +Decide: -18 +Decide: -19 +Decide: -21 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -28 +Decide: -32 +Decide: -26 +Decide: -28 +Decide: -33 +Decide: -25 +Decide: -21 +Decide: -25 +Decide: -19 +Decide: -21 +Decide: -26 +Decide: -15 +Decide: -17 +Decide: -18 +Decide: -22 +Decide: -24 +Decide: -29 +Decide: -25 +Decide: -29 +Decide: -24 +Decide: -25 +Decide: -31 +Decide: -19 +Decide: -22 +Decide: -24 +Decide: -29 +Decide: -26 +Decide: -29 +Decide: -24 +Decide: -26 +Decide: -31 +Decide: -22 +Decide: -18 +Decide: -19 +Decide: -22 +Decide: -25 +Decide: -29 +Decide: -26 +Decide: -29 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -22 +Decide: -19 +Decide: -22 +Decide: -17 +Decide: -18 +Decide: -19 +Decide: -24 +Decide: -25 +Decide: -31 +Decide: -26 +Decide: -31 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -24 +Decide: -19 +Decide: -24 +Decide: -18 +Decide: -19 +Decide: -25 +Decide: -14 +Decide: -15 +Decide: -17 +Decide: -18 +Decide: -22 +Decide: -24 +Decide: -29 +Decide: -25 +Decide: -29 +Decide: -24 +Decide: -25 +Decide: -31 +Decide: -21 +Decide: -22 +Decide: -24 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -24 +Decide: -28 +Decide: -31 +Decide: -22 +Decide: -18 +Decide: -21 +Decide: -22 +Decide: -25 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -25 +Decide: -28 +Decide: -32 +Decide: -22 +Decide: -21 +Decide: -22 +Decide: -17 +Decide: -18 +Decide: -21 +Decide: -24 +Decide: -25 +Decide: -31 +Decide: -28 +Decide: -31 +Decide: -25 +Decide: -28 +Decide: -32 +Decide: -24 +Decide: -21 +Decide: -24 +Decide: -18 +Decide: -21 +Decide: -25 +Decide: -15 +Decide: -17 +Decide: -22 +Decide: -18 +Decide: -22 +Decide: -17 +Decide: -18 +Decide: -24 +Decide: -12 +Decide: -14 +Decide: -15 +Decide: -17 +Decide: -19 +Decide: -22 +Decide: -24 +Decide: -29 +Decide: -26 +Decide: -29 +Decide: -24 +Decide: -26 +Decide: -31 +Decide: -21 +Decide: -22 +Decide: -24 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -24 +Decide: -28 +Decide: -31 +Decide: -22 +Decide: -19 +Decide: -21 +Decide: -22 +Decide: -26 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -26 +Decide: -28 +Decide: -33 +Decide: -22 +Decide: -21 +Decide: -22 +Decide: -17 +Decide: -19 +Decide: -21 +Decide: -24 +Decide: -26 +Decide: -31 +Decide: -28 +Decide: -31 +Decide: -26 +Decide: -28 +Decide: -33 +Decide: -24 +Decide: -21 +Decide: -24 +Decide: -19 +Decide: -21 +Decide: -26 +Decide: -15 +Decide: -17 +Decide: -22 +Decide: -19 +Decide: -22 +Decide: -17 +Decide: -19 +Decide: -24 +Decide: -14 +Decide: -15 +Decide: -17 +Decide: -22 +Decide: -21 +Decide: -22 +Decide: -17 +Decide: -21 +Decide: -24 +Decide: -15 +Decide: -11 +Decide: -12 +Decide: -14 +Decide: -15 +Decide: -18 +Decide: -19 +Decide: -22 +Decide: -25 +Decide: -29 +Decide: -26 +Decide: -29 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -21 +Decide: -22 +Decide: -25 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -25 +Decide: -28 +Decide: -32 +Decide: -22 +Decide: -19 +Decide: -21 +Decide: -22 +Decide: -26 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -26 +Decide: -28 +Decide: -33 +Decide: -22 +Decide: -21 +Decide: -22 +Decide: -18 +Decide: -19 +Decide: -21 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -28 +Decide: -32 +Decide: -26 +Decide: -28 +Decide: -33 +Decide: -25 +Decide: -21 +Decide: -25 +Decide: -19 +Decide: -21 +Decide: -26 +Decide: -15 +Decide: -18 +Decide: -22 +Decide: -19 +Decide: -22 +Decide: -18 +Decide: -19 +Decide: -25 +Decide: -14 +Decide: -15 +Decide: -18 +Decide: -22 +Decide: -21 +Decide: -22 +Decide: -18 +Decide: -21 +Decide: -25 +Decide: -15 +Decide: -12 +Decide: -14 +Decide: -15 +Decide: -19 +Decide: -22 +Decide: -21 +Decide: -22 +Decide: -19 +Decide: -21 +Decide: -26 +Decide: -15 +Decide: -14 +Decide: -15 +Decide: -9 +Decide: -10 +Decide: -11 +Decide: -12 +Decide: -14 +Decide: -16 +Decide: -17 +Decide: -18 +Decide: -19 +Decide: -23 +Decide: -24 +Decide: -25 +Decide: -30 +Decide: -31 +Decide: -37 +Decide: -32 +Decide: -37 +Decide: -31 +Decide: -32 +Decide: -38 +Decide: -26 +Decide: -30 +Decide: -31 +Decide: -37 +Decide: -33 +Decide: -37 +Decide: -31 +Decide: -33 +Decide: -38 +Decide: -30 +Decide: -25 +Decide: -26 +Decide: -30 +Decide: -32 +Decide: -37 +Decide: -33 +Decide: -37 +Decide: -32 +Decide: -33 +Decide: -39 +Decide: -30 +Decide: -26 +Decide: -30 +Decide: -24 +Decide: -25 +Decide: -26 +Decide: -31 +Decide: -32 +Decide: -38 +Decide: -33 +Decide: -38 +Decide: -32 +Decide: -33 +Decide: -39 +Decide: -31 +Decide: -26 +Decide: -31 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -21 +Decide: -23 +Decide: -24 +Decide: -25 +Decide: -30 +Decide: -31 +Decide: -37 +Decide: -32 +Decide: -37 +Decide: -31 +Decide: -32 +Decide: -38 +Decide: -28 +Decide: -30 +Decide: -31 +Decide: -37 +Decide: -35 +Decide: -37 +Decide: -31 +Decide: -35 +Decide: -38 +Decide: -30 +Decide: -25 +Decide: -28 +Decide: -30 +Decide: -32 +Decide: -37 +Decide: -35 +Decide: -37 +Decide: -32 +Decide: -35 +Decide: -39 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -24 +Decide: -25 +Decide: -28 +Decide: -31 +Decide: -32 +Decide: -38 +Decide: -35 +Decide: -38 +Decide: -32 +Decide: -35 +Decide: -39 +Decide: -31 +Decide: -28 +Decide: -31 +Decide: -25 +Decide: -28 +Decide: -32 +Decide: -23 +Decide: -24 +Decide: -30 +Decide: -25 +Decide: -30 +Decide: -24 +Decide: -25 +Decide: -31 +Decide: -19 +Decide: -21 +Decide: -23 +Decide: -24 +Decide: -26 +Decide: -30 +Decide: -31 +Decide: -37 +Decide: -33 +Decide: -37 +Decide: -31 +Decide: -33 +Decide: -38 +Decide: -28 +Decide: -30 +Decide: -31 +Decide: -37 +Decide: -35 +Decide: -37 +Decide: -31 +Decide: -35 +Decide: -38 +Decide: -30 +Decide: -26 +Decide: -28 +Decide: -30 +Decide: -33 +Decide: -37 +Decide: -35 +Decide: -37 +Decide: -33 +Decide: -35 +Decide: -40 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -24 +Decide: -26 +Decide: -28 +Decide: -31 +Decide: -33 +Decide: -38 +Decide: -35 +Decide: -38 +Decide: -33 +Decide: -35 +Decide: -40 +Decide: -31 +Decide: -28 +Decide: -31 +Decide: -26 +Decide: -28 +Decide: -33 +Decide: -23 +Decide: -24 +Decide: -30 +Decide: -26 +Decide: -30 +Decide: -24 +Decide: -26 +Decide: -31 +Decide: -21 +Decide: -23 +Decide: -24 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -24 +Decide: -28 +Decide: -31 +Decide: -23 +Decide: -18 +Decide: -19 +Decide: -21 +Decide: -23 +Decide: -25 +Decide: -26 +Decide: -30 +Decide: -32 +Decide: -37 +Decide: -33 +Decide: -37 +Decide: -32 +Decide: -33 +Decide: -39 +Decide: -28 +Decide: -30 +Decide: -32 +Decide: -37 +Decide: -35 +Decide: -37 +Decide: -32 +Decide: -35 +Decide: -39 +Decide: -30 +Decide: -26 +Decide: -28 +Decide: -30 +Decide: -33 +Decide: -37 +Decide: -35 +Decide: -37 +Decide: -33 +Decide: -35 +Decide: -40 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -25 +Decide: -26 +Decide: -28 +Decide: -32 +Decide: -33 +Decide: -39 +Decide: -35 +Decide: -39 +Decide: -33 +Decide: -35 +Decide: -40 +Decide: -32 +Decide: -28 +Decide: -32 +Decide: -26 +Decide: -28 +Decide: -33 +Decide: -23 +Decide: -25 +Decide: -30 +Decide: -26 +Decide: -30 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -21 +Decide: -23 +Decide: -25 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -25 +Decide: -28 +Decide: -32 +Decide: -23 +Decide: -19 +Decide: -21 +Decide: -23 +Decide: -26 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -26 +Decide: -28 +Decide: -33 +Decide: -23 +Decide: -21 +Decide: -23 +Decide: -17 +Decide: -18 +Decide: -19 +Decide: -21 +Decide: -24 +Decide: -25 +Decide: -26 +Decide: -31 +Decide: -32 +Decide: -38 +Decide: -33 +Decide: -38 +Decide: -32 +Decide: -33 +Decide: -39 +Decide: -28 +Decide: -31 +Decide: -32 +Decide: -38 +Decide: -35 +Decide: -38 +Decide: -32 +Decide: -35 +Decide: -39 +Decide: -31 +Decide: -26 +Decide: -28 +Decide: -31 +Decide: -33 +Decide: -38 +Decide: -35 +Decide: -38 +Decide: -33 +Decide: -35 +Decide: -40 +Decide: -31 +Decide: -28 +Decide: -31 +Decide: -25 +Decide: -26 +Decide: -28 +Decide: -32 +Decide: -33 +Decide: -39 +Decide: -35 +Decide: -39 +Decide: -33 +Decide: -35 +Decide: -40 +Decide: -32 +Decide: -28 +Decide: -32 +Decide: -26 +Decide: -28 +Decide: -33 +Decide: -24 +Decide: -25 +Decide: -31 +Decide: -26 +Decide: -31 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -21 +Decide: -24 +Decide: -25 +Decide: -31 +Decide: -28 +Decide: -31 +Decide: -25 +Decide: -28 +Decide: -32 +Decide: -24 +Decide: -19 +Decide: -21 +Decide: -24 +Decide: -26 +Decide: -31 +Decide: -28 +Decide: -31 +Decide: -26 +Decide: -28 +Decide: -33 +Decide: -24 +Decide: -21 +Decide: -24 +Decide: -18 +Decide: -19 +Decide: -21 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -28 +Decide: -32 +Decide: -26 +Decide: -28 +Decide: -33 +Decide: -25 +Decide: -21 +Decide: -25 +Decide: -19 +Decide: -21 +Decide: -26 +Decide: -16 +Decide: -17 +Decide: -18 +Decide: -23 +Decide: -24 +Decide: -30 +Decide: -25 +Decide: -30 +Decide: -24 +Decide: -25 +Decide: -31 +Decide: -19 +Decide: -23 +Decide: -24 +Decide: -30 +Decide: -26 +Decide: -30 +Decide: -24 +Decide: -26 +Decide: -31 +Decide: -23 +Decide: -18 +Decide: -19 +Decide: -23 +Decide: -25 +Decide: -30 +Decide: -26 +Decide: -30 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -23 +Decide: -19 +Decide: -23 +Decide: -17 +Decide: -18 +Decide: -19 +Decide: -24 +Decide: -25 +Decide: -31 +Decide: -26 +Decide: -31 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -24 +Decide: -19 +Decide: -24 +Decide: -18 +Decide: -19 +Decide: -25 +Decide: -14 +Decide: -16 +Decide: -17 +Decide: -18 +Decide: -23 +Decide: -24 +Decide: -30 +Decide: -25 +Decide: -30 +Decide: -24 +Decide: -25 +Decide: -31 +Decide: -21 +Decide: -23 +Decide: -24 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -24 +Decide: -28 +Decide: -31 +Decide: -23 +Decide: -18 +Decide: -21 +Decide: -23 +Decide: -25 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -25 +Decide: -28 +Decide: -32 +Decide: -23 +Decide: -21 +Decide: -23 +Decide: -17 +Decide: -18 +Decide: -21 +Decide: -24 +Decide: -25 +Decide: -31 +Decide: -28 +Decide: -31 +Decide: -25 +Decide: -28 +Decide: -32 +Decide: -24 +Decide: -21 +Decide: -24 +Decide: -18 +Decide: -21 +Decide: -25 +Decide: -16 +Decide: -17 +Decide: -23 +Decide: -18 +Decide: -23 +Decide: -17 +Decide: -18 +Decide: -24 +Decide: -12 +Decide: -14 +Decide: -16 +Decide: -17 +Decide: -19 +Decide: -23 +Decide: -24 +Decide: -30 +Decide: -26 +Decide: -30 +Decide: -24 +Decide: -26 +Decide: -31 +Decide: -21 +Decide: -23 +Decide: -24 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -24 +Decide: -28 +Decide: -31 +Decide: -23 +Decide: -19 +Decide: -21 +Decide: -23 +Decide: -26 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -26 +Decide: -28 +Decide: -33 +Decide: -23 +Decide: -21 +Decide: -23 +Decide: -17 +Decide: -19 +Decide: -21 +Decide: -24 +Decide: -26 +Decide: -31 +Decide: -28 +Decide: -31 +Decide: -26 +Decide: -28 +Decide: -33 +Decide: -24 +Decide: -21 +Decide: -24 +Decide: -19 +Decide: -21 +Decide: -26 +Decide: -16 +Decide: -17 +Decide: -23 +Decide: -19 +Decide: -23 +Decide: -17 +Decide: -19 +Decide: -24 +Decide: -14 +Decide: -16 +Decide: -17 +Decide: -23 +Decide: -21 +Decide: -23 +Decide: -17 +Decide: -21 +Decide: -24 +Decide: -16 +Decide: -11 +Decide: -12 +Decide: -14 +Decide: -16 +Decide: -18 +Decide: -19 +Decide: -23 +Decide: -25 +Decide: -30 +Decide: -26 +Decide: -30 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -21 +Decide: -23 +Decide: -25 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -25 +Decide: -28 +Decide: -32 +Decide: -23 +Decide: -19 +Decide: -21 +Decide: -23 +Decide: -26 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -26 +Decide: -28 +Decide: -33 +Decide: -23 +Decide: -21 +Decide: -23 +Decide: -18 +Decide: -19 +Decide: -21 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -28 +Decide: -32 +Decide: -26 +Decide: -28 +Decide: -33 +Decide: -25 +Decide: -21 +Decide: -25 +Decide: -19 +Decide: -21 +Decide: -26 +Decide: -16 +Decide: -18 +Decide: -23 +Decide: -19 +Decide: -23 +Decide: -18 +Decide: -19 +Decide: -25 +Decide: -14 +Decide: -16 +Decide: -18 +Decide: -23 +Decide: -21 +Decide: -23 +Decide: -18 +Decide: -21 +Decide: -25 +Decide: -16 +Decide: -12 +Decide: -14 +Decide: -16 +Decide: -19 +Decide: -23 +Decide: -21 +Decide: -23 +Decide: -19 +Decide: -21 +Decide: -26 +Decide: -16 +Decide: -14 +Decide: -16 +Decide: -10 +Decide: -11 +Decide: -12 +Decide: -14 +Decide: -17 +Decide: -18 +Decide: -19 +Decide: -24 +Decide: -25 +Decide: -31 +Decide: -26 +Decide: -31 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -21 +Decide: -24 +Decide: -25 +Decide: -31 +Decide: -28 +Decide: -31 +Decide: -25 +Decide: -28 +Decide: -32 +Decide: -24 +Decide: -19 +Decide: -21 +Decide: -24 +Decide: -26 +Decide: -31 +Decide: -28 +Decide: -31 +Decide: -26 +Decide: -28 +Decide: -33 +Decide: -24 +Decide: -21 +Decide: -24 +Decide: -18 +Decide: -19 +Decide: -21 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -28 +Decide: -32 +Decide: -26 +Decide: -28 +Decide: -33 +Decide: -25 +Decide: -21 +Decide: -25 +Decide: -19 +Decide: -21 +Decide: -26 +Decide: -17 +Decide: -18 +Decide: -24 +Decide: -19 +Decide: -24 +Decide: -18 +Decide: -19 +Decide: -25 +Decide: -14 +Decide: -17 +Decide: -18 +Decide: -24 +Decide: -21 +Decide: -24 +Decide: -18 +Decide: -21 +Decide: -25 +Decide: -17 +Decide: -12 +Decide: -14 +Decide: -17 +Decide: -19 +Decide: -24 +Decide: -21 +Decide: -24 +Decide: -19 +Decide: -21 +Decide: -26 +Decide: -17 +Decide: -14 +Decide: -17 +Decide: -11 +Decide: -12 +Decide: -14 +Decide: -18 +Decide: -19 +Decide: -25 +Decide: -21 +Decide: -25 +Decide: -19 +Decide: -21 +Decide: -26 +Decide: -18 +Decide: -14 +Decide: -18 +Decide: -12 +Decide: -14 +Decide: -19 +Decide: -8 +Decide: -9 +Decide: -10 +Decide: -11 +Decide: -15 +Decide: -16 +Decide: -17 +Decide: -22 +Decide: -23 +Decide: -29 +Decide: -24 +Decide: -29 +Decide: -23 +Decide: -24 +Decide: -30 +Decide: -18 +Decide: -22 +Decide: -23 +Decide: -29 +Decide: -25 +Decide: -29 +Decide: -23 +Decide: -25 +Decide: -30 +Decide: -22 +Decide: -17 +Decide: -18 +Decide: -22 +Decide: -24 +Decide: -29 +Decide: -25 +Decide: -29 +Decide: -24 +Decide: -25 +Decide: -31 +Decide: -22 +Decide: -18 +Decide: -22 +Decide: -16 +Decide: -17 +Decide: -18 +Decide: -23 +Decide: -24 +Decide: -30 +Decide: -25 +Decide: -30 +Decide: -24 +Decide: -25 +Decide: -31 +Decide: -23 +Decide: -18 +Decide: -23 +Decide: -17 +Decide: -18 +Decide: -24 +Decide: -12 +Decide: -15 +Decide: -16 +Decide: -17 +Decide: -22 +Decide: -23 +Decide: -29 +Decide: -24 +Decide: -29 +Decide: -23 +Decide: -24 +Decide: -30 +Decide: -19 +Decide: -22 +Decide: -23 +Decide: -29 +Decide: -26 +Decide: -29 +Decide: -23 +Decide: -26 +Decide: -30 +Decide: -22 +Decide: -17 +Decide: -19 +Decide: -22 +Decide: -24 +Decide: -29 +Decide: -26 +Decide: -29 +Decide: -24 +Decide: -26 +Decide: -31 +Decide: -22 +Decide: -19 +Decide: -22 +Decide: -16 +Decide: -17 +Decide: -19 +Decide: -23 +Decide: -24 +Decide: -30 +Decide: -26 +Decide: -30 +Decide: -24 +Decide: -26 +Decide: -31 +Decide: -23 +Decide: -19 +Decide: -23 +Decide: -17 +Decide: -19 +Decide: -24 +Decide: -15 +Decide: -16 +Decide: -22 +Decide: -17 +Decide: -22 +Decide: -16 +Decide: -17 +Decide: -23 +Decide: -11 +Decide: -12 +Decide: -15 +Decide: -16 +Decide: -18 +Decide: -22 +Decide: -23 +Decide: -29 +Decide: -25 +Decide: -29 +Decide: -23 +Decide: -25 +Decide: -30 +Decide: -19 +Decide: -22 +Decide: -23 +Decide: -29 +Decide: -26 +Decide: -29 +Decide: -23 +Decide: -26 +Decide: -30 +Decide: -22 +Decide: -18 +Decide: -19 +Decide: -22 +Decide: -25 +Decide: -29 +Decide: -26 +Decide: -29 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -22 +Decide: -19 +Decide: -22 +Decide: -16 +Decide: -18 +Decide: -19 +Decide: -23 +Decide: -25 +Decide: -30 +Decide: -26 +Decide: -30 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -23 +Decide: -19 +Decide: -23 +Decide: -18 +Decide: -19 +Decide: -25 +Decide: -15 +Decide: -16 +Decide: -22 +Decide: -18 +Decide: -22 +Decide: -16 +Decide: -18 +Decide: -23 +Decide: -12 +Decide: -15 +Decide: -16 +Decide: -22 +Decide: -19 +Decide: -22 +Decide: -16 +Decide: -19 +Decide: -23 +Decide: -15 +Decide: -10 +Decide: -11 +Decide: -12 +Decide: -15 +Decide: -17 +Decide: -18 +Decide: -22 +Decide: -24 +Decide: -29 +Decide: -25 +Decide: -29 +Decide: -24 +Decide: -25 +Decide: -31 +Decide: -19 +Decide: -22 +Decide: -24 +Decide: -29 +Decide: -26 +Decide: -29 +Decide: -24 +Decide: -26 +Decide: -31 +Decide: -22 +Decide: -18 +Decide: -19 +Decide: -22 +Decide: -25 +Decide: -29 +Decide: -26 +Decide: -29 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -22 +Decide: -19 +Decide: -22 +Decide: -17 +Decide: -18 +Decide: -19 +Decide: -24 +Decide: -25 +Decide: -31 +Decide: -26 +Decide: -31 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -24 +Decide: -19 +Decide: -24 +Decide: -18 +Decide: -19 +Decide: -25 +Decide: -15 +Decide: -17 +Decide: -22 +Decide: -18 +Decide: -22 +Decide: -17 +Decide: -18 +Decide: -24 +Decide: -12 +Decide: -15 +Decide: -17 +Decide: -22 +Decide: -19 +Decide: -22 +Decide: -17 +Decide: -19 +Decide: -24 +Decide: -15 +Decide: -11 +Decide: -12 +Decide: -15 +Decide: -18 +Decide: -22 +Decide: -19 +Decide: -22 +Decide: -18 +Decide: -19 +Decide: -25 +Decide: -15 +Decide: -12 +Decide: -15 +Decide: -9 +Decide: -10 +Decide: -11 +Decide: -12 +Decide: -16 +Decide: -17 +Decide: -18 +Decide: -23 +Decide: -24 +Decide: -30 +Decide: -25 +Decide: -30 +Decide: -24 +Decide: -25 +Decide: -31 +Decide: -19 +Decide: -23 +Decide: -24 +Decide: -30 +Decide: -26 +Decide: -30 +Decide: -24 +Decide: -26 +Decide: -31 +Decide: -23 +Decide: -18 +Decide: -19 +Decide: -23 +Decide: -25 +Decide: -30 +Decide: -26 +Decide: -30 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -23 +Decide: -19 +Decide: -23 +Decide: -17 +Decide: -18 +Decide: -19 +Decide: -24 +Decide: -25 +Decide: -31 +Decide: -26 +Decide: -31 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -24 +Decide: -19 +Decide: -24 +Decide: -18 +Decide: -19 +Decide: -25 +Decide: -16 +Decide: -17 +Decide: -23 +Decide: -18 +Decide: -23 +Decide: -17 +Decide: -18 +Decide: -24 +Decide: -12 +Decide: -16 +Decide: -17 +Decide: -23 +Decide: -19 +Decide: -23 +Decide: -17 +Decide: -19 +Decide: -24 +Decide: -16 +Decide: -11 +Decide: -12 +Decide: -16 +Decide: -18 +Decide: -23 +Decide: -19 +Decide: -23 +Decide: -18 +Decide: -19 +Decide: -25 +Decide: -16 +Decide: -12 +Decide: -16 +Decide: -10 +Decide: -11 +Decide: -12 +Decide: -17 +Decide: -18 +Decide: -24 +Decide: -19 +Decide: -24 +Decide: -18 +Decide: -19 +Decide: -25 +Decide: -17 +Decide: -12 +Decide: -17 +Decide: -11 +Decide: -12 +Decide: -18 +Decide: -6 +Decide: -7 +Decide: -8 +Decide: -9 +Decide: -10 +Decide: -11 +Decide: -13 +Decide: -15 +Decide: -16 +Decide: -17 +Decide: -18 +Decide: -22 +Decide: -23 +Decide: -24 +Decide: -29 +Decide: -30 +Decide: -36 +Decide: -31 +Decide: -36 +Decide: -30 +Decide: -31 +Decide: -37 +Decide: -25 +Decide: -29 +Decide: -30 +Decide: -36 +Decide: -32 +Decide: -36 +Decide: -30 +Decide: -32 +Decide: -37 +Decide: -29 +Decide: -24 +Decide: -25 +Decide: -29 +Decide: -31 +Decide: -36 +Decide: -32 +Decide: -36 +Decide: -31 +Decide: -32 +Decide: -38 +Decide: -29 +Decide: -25 +Decide: -29 +Decide: -23 +Decide: -24 +Decide: -25 +Decide: -30 +Decide: -31 +Decide: -37 +Decide: -32 +Decide: -37 +Decide: -31 +Decide: -32 +Decide: -38 +Decide: -30 +Decide: -25 +Decide: -30 +Decide: -24 +Decide: -25 +Decide: -31 +Decide: -20 +Decide: -22 +Decide: -23 +Decide: -24 +Decide: -29 +Decide: -30 +Decide: -36 +Decide: -31 +Decide: -36 +Decide: -30 +Decide: -31 +Decide: -37 +Decide: -27 +Decide: -29 +Decide: -30 +Decide: -36 +Decide: -34 +Decide: -36 +Decide: -30 +Decide: -34 +Decide: -37 +Decide: -29 +Decide: -24 +Decide: -27 +Decide: -29 +Decide: -31 +Decide: -36 +Decide: -34 +Decide: -36 +Decide: -31 +Decide: -34 +Decide: -38 +Decide: -29 +Decide: -27 +Decide: -29 +Decide: -23 +Decide: -24 +Decide: -27 +Decide: -30 +Decide: -31 +Decide: -37 +Decide: -34 +Decide: -37 +Decide: -31 +Decide: -34 +Decide: -38 +Decide: -30 +Decide: -27 +Decide: -30 +Decide: -24 +Decide: -27 +Decide: -31 +Decide: -22 +Decide: -23 +Decide: -29 +Decide: -24 +Decide: -29 +Decide: -23 +Decide: -24 +Decide: -30 +Decide: -18 +Decide: -20 +Decide: -22 +Decide: -23 +Decide: -25 +Decide: -29 +Decide: -30 +Decide: -36 +Decide: -32 +Decide: -36 +Decide: -30 +Decide: -32 +Decide: -37 +Decide: -27 +Decide: -29 +Decide: -30 +Decide: -36 +Decide: -34 +Decide: -36 +Decide: -30 +Decide: -34 +Decide: -37 +Decide: -29 +Decide: -25 +Decide: -27 +Decide: -29 +Decide: -32 +Decide: -36 +Decide: -34 +Decide: -36 +Decide: -32 +Decide: -34 +Decide: -39 +Decide: -29 +Decide: -27 +Decide: -29 +Decide: -23 +Decide: -25 +Decide: -27 +Decide: -30 +Decide: -32 +Decide: -37 +Decide: -34 +Decide: -37 +Decide: -32 +Decide: -34 +Decide: -39 +Decide: -30 +Decide: -27 +Decide: -30 +Decide: -25 +Decide: -27 +Decide: -32 +Decide: -22 +Decide: -23 +Decide: -29 +Decide: -25 +Decide: -29 +Decide: -23 +Decide: -25 +Decide: -30 +Decide: -20 +Decide: -22 +Decide: -23 +Decide: -29 +Decide: -27 +Decide: -29 +Decide: -23 +Decide: -27 +Decide: -30 +Decide: -22 +Decide: -17 +Decide: -18 +Decide: -20 +Decide: -22 +Decide: -24 +Decide: -25 +Decide: -29 +Decide: -31 +Decide: -36 +Decide: -32 +Decide: -36 +Decide: -31 +Decide: -32 +Decide: -38 +Decide: -27 +Decide: -29 +Decide: -31 +Decide: -36 +Decide: -34 +Decide: -36 +Decide: -31 +Decide: -34 +Decide: -38 +Decide: -29 +Decide: -25 +Decide: -27 +Decide: -29 +Decide: -32 +Decide: -36 +Decide: -34 +Decide: -36 +Decide: -32 +Decide: -34 +Decide: -39 +Decide: -29 +Decide: -27 +Decide: -29 +Decide: -24 +Decide: -25 +Decide: -27 +Decide: -31 +Decide: -32 +Decide: -38 +Decide: -34 +Decide: -38 +Decide: -32 +Decide: -34 +Decide: -39 +Decide: -31 +Decide: -27 +Decide: -31 +Decide: -25 +Decide: -27 +Decide: -32 +Decide: -22 +Decide: -24 +Decide: -29 +Decide: -25 +Decide: -29 +Decide: -24 +Decide: -25 +Decide: -31 +Decide: -20 +Decide: -22 +Decide: -24 +Decide: -29 +Decide: -27 +Decide: -29 +Decide: -24 +Decide: -27 +Decide: -31 +Decide: -22 +Decide: -18 +Decide: -20 +Decide: -22 +Decide: -25 +Decide: -29 +Decide: -27 +Decide: -29 +Decide: -25 +Decide: -27 +Decide: -32 +Decide: -22 +Decide: -20 +Decide: -22 +Decide: -16 +Decide: -17 +Decide: -18 +Decide: -20 +Decide: -23 +Decide: -24 +Decide: -25 +Decide: -30 +Decide: -31 +Decide: -37 +Decide: -32 +Decide: -37 +Decide: -31 +Decide: -32 +Decide: -38 +Decide: -27 +Decide: -30 +Decide: -31 +Decide: -37 +Decide: -34 +Decide: -37 +Decide: -31 +Decide: -34 +Decide: -38 +Decide: -30 +Decide: -25 +Decide: -27 +Decide: -30 +Decide: -32 +Decide: -37 +Decide: -34 +Decide: -37 +Decide: -32 +Decide: -34 +Decide: -39 +Decide: -30 +Decide: -27 +Decide: -30 +Decide: -24 +Decide: -25 +Decide: -27 +Decide: -31 +Decide: -32 +Decide: -38 +Decide: -34 +Decide: -38 +Decide: -32 +Decide: -34 +Decide: -39 +Decide: -31 +Decide: -27 +Decide: -31 +Decide: -25 +Decide: -27 +Decide: -32 +Decide: -23 +Decide: -24 +Decide: -30 +Decide: -25 +Decide: -30 +Decide: -24 +Decide: -25 +Decide: -31 +Decide: -20 +Decide: -23 +Decide: -24 +Decide: -30 +Decide: -27 +Decide: -30 +Decide: -24 +Decide: -27 +Decide: -31 +Decide: -23 +Decide: -18 +Decide: -20 +Decide: -23 +Decide: -25 +Decide: -30 +Decide: -27 +Decide: -30 +Decide: -25 +Decide: -27 +Decide: -32 +Decide: -23 +Decide: -20 +Decide: -23 +Decide: -17 +Decide: -18 +Decide: -20 +Decide: -24 +Decide: -25 +Decide: -31 +Decide: -27 +Decide: -31 +Decide: -25 +Decide: -27 +Decide: -32 +Decide: -24 +Decide: -20 +Decide: -24 +Decide: -18 +Decide: -20 +Decide: -25 +Decide: -14 +Decide: -15 +Decide: -16 +Decide: -17 +Decide: -18 +Decide: -22 +Decide: -23 +Decide: -24 +Decide: -29 +Decide: -30 +Decide: -36 +Decide: -31 +Decide: -36 +Decide: -30 +Decide: -31 +Decide: -37 +Decide: -25 +Decide: -29 +Decide: -30 +Decide: -36 +Decide: -32 +Decide: -36 +Decide: -30 +Decide: -32 +Decide: -37 +Decide: -29 +Decide: -24 +Decide: -25 +Decide: -29 +Decide: -31 +Decide: -36 +Decide: -32 +Decide: -36 +Decide: -31 +Decide: -32 +Decide: -38 +Decide: -29 +Decide: -25 +Decide: -29 +Decide: -23 +Decide: -24 +Decide: -25 +Decide: -30 +Decide: -31 +Decide: -37 +Decide: -32 +Decide: -37 +Decide: -31 +Decide: -32 +Decide: -38 +Decide: -30 +Decide: -25 +Decide: -30 +Decide: -24 +Decide: -25 +Decide: -31 +Decide: -21 +Decide: -22 +Decide: -23 +Decide: -24 +Decide: -29 +Decide: -30 +Decide: -36 +Decide: -31 +Decide: -36 +Decide: -30 +Decide: -31 +Decide: -37 +Decide: -28 +Decide: -29 +Decide: -30 +Decide: -36 +Decide: -35 +Decide: -36 +Decide: -30 +Decide: -35 +Decide: -37 +Decide: -29 +Decide: -24 +Decide: -28 +Decide: -29 +Decide: -31 +Decide: -36 +Decide: -35 +Decide: -36 +Decide: -31 +Decide: -35 +Decide: -38 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -23 +Decide: -24 +Decide: -28 +Decide: -30 +Decide: -31 +Decide: -37 +Decide: -35 +Decide: -37 +Decide: -31 +Decide: -35 +Decide: -38 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -24 +Decide: -28 +Decide: -31 +Decide: -22 +Decide: -23 +Decide: -29 +Decide: -24 +Decide: -29 +Decide: -23 +Decide: -24 +Decide: -30 +Decide: -18 +Decide: -21 +Decide: -22 +Decide: -23 +Decide: -25 +Decide: -29 +Decide: -30 +Decide: -36 +Decide: -32 +Decide: -36 +Decide: -30 +Decide: -32 +Decide: -37 +Decide: -28 +Decide: -29 +Decide: -30 +Decide: -36 +Decide: -35 +Decide: -36 +Decide: -30 +Decide: -35 +Decide: -37 +Decide: -29 +Decide: -25 +Decide: -28 +Decide: -29 +Decide: -32 +Decide: -36 +Decide: -35 +Decide: -36 +Decide: -32 +Decide: -35 +Decide: -39 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -23 +Decide: -25 +Decide: -28 +Decide: -30 +Decide: -32 +Decide: -37 +Decide: -35 +Decide: -37 +Decide: -32 +Decide: -35 +Decide: -39 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -25 +Decide: -28 +Decide: -32 +Decide: -22 +Decide: -23 +Decide: -29 +Decide: -25 +Decide: -29 +Decide: -23 +Decide: -25 +Decide: -30 +Decide: -21 +Decide: -22 +Decide: -23 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -23 +Decide: -28 +Decide: -30 +Decide: -22 +Decide: -17 +Decide: -18 +Decide: -21 +Decide: -22 +Decide: -24 +Decide: -25 +Decide: -29 +Decide: -31 +Decide: -36 +Decide: -32 +Decide: -36 +Decide: -31 +Decide: -32 +Decide: -38 +Decide: -28 +Decide: -29 +Decide: -31 +Decide: -36 +Decide: -35 +Decide: -36 +Decide: -31 +Decide: -35 +Decide: -38 +Decide: -29 +Decide: -25 +Decide: -28 +Decide: -29 +Decide: -32 +Decide: -36 +Decide: -35 +Decide: -36 +Decide: -32 +Decide: -35 +Decide: -39 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -24 +Decide: -25 +Decide: -28 +Decide: -31 +Decide: -32 +Decide: -38 +Decide: -35 +Decide: -38 +Decide: -32 +Decide: -35 +Decide: -39 +Decide: -31 +Decide: -28 +Decide: -31 +Decide: -25 +Decide: -28 +Decide: -32 +Decide: -22 +Decide: -24 +Decide: -29 +Decide: -25 +Decide: -29 +Decide: -24 +Decide: -25 +Decide: -31 +Decide: -21 +Decide: -22 +Decide: -24 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -24 +Decide: -28 +Decide: -31 +Decide: -22 +Decide: -18 +Decide: -21 +Decide: -22 +Decide: -25 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -25 +Decide: -28 +Decide: -32 +Decide: -22 +Decide: -21 +Decide: -22 +Decide: -16 +Decide: -17 +Decide: -18 +Decide: -21 +Decide: -23 +Decide: -24 +Decide: -25 +Decide: -30 +Decide: -31 +Decide: -37 +Decide: -32 +Decide: -37 +Decide: -31 +Decide: -32 +Decide: -38 +Decide: -28 +Decide: -30 +Decide: -31 +Decide: -37 +Decide: -35 +Decide: -37 +Decide: -31 +Decide: -35 +Decide: -38 +Decide: -30 +Decide: -25 +Decide: -28 +Decide: -30 +Decide: -32 +Decide: -37 +Decide: -35 +Decide: -37 +Decide: -32 +Decide: -35 +Decide: -39 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -24 +Decide: -25 +Decide: -28 +Decide: -31 +Decide: -32 +Decide: -38 +Decide: -35 +Decide: -38 +Decide: -32 +Decide: -35 +Decide: -39 +Decide: -31 +Decide: -28 +Decide: -31 +Decide: -25 +Decide: -28 +Decide: -32 +Decide: -23 +Decide: -24 +Decide: -30 +Decide: -25 +Decide: -30 +Decide: -24 +Decide: -25 +Decide: -31 +Decide: -21 +Decide: -23 +Decide: -24 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -24 +Decide: -28 +Decide: -31 +Decide: -23 +Decide: -18 +Decide: -21 +Decide: -23 +Decide: -25 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -25 +Decide: -28 +Decide: -32 +Decide: -23 +Decide: -21 +Decide: -23 +Decide: -17 +Decide: -18 +Decide: -21 +Decide: -24 +Decide: -25 +Decide: -31 +Decide: -28 +Decide: -31 +Decide: -25 +Decide: -28 +Decide: -32 +Decide: -24 +Decide: -21 +Decide: -24 +Decide: -18 +Decide: -21 +Decide: -25 +Decide: -15 +Decide: -16 +Decide: -17 +Decide: -22 +Decide: -23 +Decide: -29 +Decide: -24 +Decide: -29 +Decide: -23 +Decide: -24 +Decide: -30 +Decide: -18 +Decide: -22 +Decide: -23 +Decide: -29 +Decide: -25 +Decide: -29 +Decide: -23 +Decide: -25 +Decide: -30 +Decide: -22 +Decide: -17 +Decide: -18 +Decide: -22 +Decide: -24 +Decide: -29 +Decide: -25 +Decide: -29 +Decide: -24 +Decide: -25 +Decide: -31 +Decide: -22 +Decide: -18 +Decide: -22 +Decide: -16 +Decide: -17 +Decide: -18 +Decide: -23 +Decide: -24 +Decide: -30 +Decide: -25 +Decide: -30 +Decide: -24 +Decide: -25 +Decide: -31 +Decide: -23 +Decide: -18 +Decide: -23 +Decide: -17 +Decide: -18 +Decide: -24 +Decide: -13 +Decide: -14 +Decide: -15 +Decide: -16 +Decide: -17 +Decide: -20 +Decide: -22 +Decide: -23 +Decide: -24 +Decide: -29 +Decide: -30 +Decide: -36 +Decide: -31 +Decide: -36 +Decide: -30 +Decide: -31 +Decide: -37 +Decide: -27 +Decide: -29 +Decide: -30 +Decide: -36 +Decide: -34 +Decide: -36 +Decide: -30 +Decide: -34 +Decide: -37 +Decide: -29 +Decide: -24 +Decide: -27 +Decide: -29 +Decide: -31 +Decide: -36 +Decide: -34 +Decide: -36 +Decide: -31 +Decide: -34 +Decide: -38 +Decide: -29 +Decide: -27 +Decide: -29 +Decide: -23 +Decide: -24 +Decide: -27 +Decide: -30 +Decide: -31 +Decide: -37 +Decide: -34 +Decide: -37 +Decide: -31 +Decide: -34 +Decide: -38 +Decide: -30 +Decide: -27 +Decide: -30 +Decide: -24 +Decide: -27 +Decide: -31 +Decide: -21 +Decide: -22 +Decide: -23 +Decide: -24 +Decide: -29 +Decide: -30 +Decide: -36 +Decide: -31 +Decide: -36 +Decide: -30 +Decide: -31 +Decide: -37 +Decide: -28 +Decide: -29 +Decide: -30 +Decide: -36 +Decide: -35 +Decide: -36 +Decide: -30 +Decide: -35 +Decide: -37 +Decide: -29 +Decide: -24 +Decide: -28 +Decide: -29 +Decide: -31 +Decide: -36 +Decide: -35 +Decide: -36 +Decide: -31 +Decide: -35 +Decide: -38 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -23 +Decide: -24 +Decide: -28 +Decide: -30 +Decide: -31 +Decide: -37 +Decide: -35 +Decide: -37 +Decide: -31 +Decide: -35 +Decide: -38 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -24 +Decide: -28 +Decide: -31 +Decide: -22 +Decide: -23 +Decide: -29 +Decide: -24 +Decide: -29 +Decide: -23 +Decide: -24 +Decide: -30 +Decide: -20 +Decide: -21 +Decide: -22 +Decide: -23 +Decide: -27 +Decide: -29 +Decide: -30 +Decide: -36 +Decide: -34 +Decide: -36 +Decide: -30 +Decide: -34 +Decide: -37 +Decide: -28 +Decide: -29 +Decide: -30 +Decide: -36 +Decide: -35 +Decide: -36 +Decide: -30 +Decide: -35 +Decide: -37 +Decide: -29 +Decide: -27 +Decide: -28 +Decide: -29 +Decide: -34 +Decide: -36 +Decide: -35 +Decide: -36 +Decide: -34 +Decide: -35 +Decide: -41 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -23 +Decide: -27 +Decide: -28 +Decide: -30 +Decide: -34 +Decide: -37 +Decide: -35 +Decide: -37 +Decide: -34 +Decide: -35 +Decide: -41 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -22 +Decide: -23 +Decide: -29 +Decide: -27 +Decide: -29 +Decide: -23 +Decide: -27 +Decide: -30 +Decide: -21 +Decide: -22 +Decide: -23 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -23 +Decide: -28 +Decide: -30 +Decide: -22 +Decide: -17 +Decide: -20 +Decide: -21 +Decide: -22 +Decide: -24 +Decide: -27 +Decide: -29 +Decide: -31 +Decide: -36 +Decide: -34 +Decide: -36 +Decide: -31 +Decide: -34 +Decide: -38 +Decide: -28 +Decide: -29 +Decide: -31 +Decide: -36 +Decide: -35 +Decide: -36 +Decide: -31 +Decide: -35 +Decide: -38 +Decide: -29 +Decide: -27 +Decide: -28 +Decide: -29 +Decide: -34 +Decide: -36 +Decide: -35 +Decide: -36 +Decide: -34 +Decide: -35 +Decide: -41 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -24 +Decide: -27 +Decide: -28 +Decide: -31 +Decide: -34 +Decide: -38 +Decide: -35 +Decide: -38 +Decide: -34 +Decide: -35 +Decide: -41 +Decide: -31 +Decide: -28 +Decide: -31 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -22 +Decide: -24 +Decide: -29 +Decide: -27 +Decide: -29 +Decide: -24 +Decide: -27 +Decide: -31 +Decide: -21 +Decide: -22 +Decide: -24 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -24 +Decide: -28 +Decide: -31 +Decide: -22 +Decide: -20 +Decide: -21 +Decide: -22 +Decide: -27 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -22 +Decide: -21 +Decide: -22 +Decide: -16 +Decide: -17 +Decide: -20 +Decide: -21 +Decide: -23 +Decide: -24 +Decide: -27 +Decide: -30 +Decide: -31 +Decide: -37 +Decide: -34 +Decide: -37 +Decide: -31 +Decide: -34 +Decide: -38 +Decide: -28 +Decide: -30 +Decide: -31 +Decide: -37 +Decide: -35 +Decide: -37 +Decide: -31 +Decide: -35 +Decide: -38 +Decide: -30 +Decide: -27 +Decide: -28 +Decide: -30 +Decide: -34 +Decide: -37 +Decide: -35 +Decide: -37 +Decide: -34 +Decide: -35 +Decide: -41 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -24 +Decide: -27 +Decide: -28 +Decide: -31 +Decide: -34 +Decide: -38 +Decide: -35 +Decide: -38 +Decide: -34 +Decide: -35 +Decide: -41 +Decide: -31 +Decide: -28 +Decide: -31 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -23 +Decide: -24 +Decide: -30 +Decide: -27 +Decide: -30 +Decide: -24 +Decide: -27 +Decide: -31 +Decide: -21 +Decide: -23 +Decide: -24 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -24 +Decide: -28 +Decide: -31 +Decide: -23 +Decide: -20 +Decide: -21 +Decide: -23 +Decide: -27 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -23 +Decide: -21 +Decide: -23 +Decide: -17 +Decide: -20 +Decide: -21 +Decide: -24 +Decide: -27 +Decide: -31 +Decide: -28 +Decide: -31 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -24 +Decide: -21 +Decide: -24 +Decide: -20 +Decide: -21 +Decide: -27 +Decide: -15 +Decide: -16 +Decide: -17 +Decide: -22 +Decide: -23 +Decide: -29 +Decide: -24 +Decide: -29 +Decide: -23 +Decide: -24 +Decide: -30 +Decide: -20 +Decide: -22 +Decide: -23 +Decide: -29 +Decide: -27 +Decide: -29 +Decide: -23 +Decide: -27 +Decide: -30 +Decide: -22 +Decide: -17 +Decide: -20 +Decide: -22 +Decide: -24 +Decide: -29 +Decide: -27 +Decide: -29 +Decide: -24 +Decide: -27 +Decide: -31 +Decide: -22 +Decide: -20 +Decide: -22 +Decide: -16 +Decide: -17 +Decide: -20 +Decide: -23 +Decide: -24 +Decide: -30 +Decide: -27 +Decide: -30 +Decide: -24 +Decide: -27 +Decide: -31 +Decide: -23 +Decide: -20 +Decide: -23 +Decide: -17 +Decide: -20 +Decide: -24 +Decide: -14 +Decide: -15 +Decide: -16 +Decide: -17 +Decide: -22 +Decide: -23 +Decide: -29 +Decide: -24 +Decide: -29 +Decide: -23 +Decide: -24 +Decide: -30 +Decide: -21 +Decide: -22 +Decide: -23 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -23 +Decide: -28 +Decide: -30 +Decide: -22 +Decide: -17 +Decide: -21 +Decide: -22 +Decide: -24 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -24 +Decide: -28 +Decide: -31 +Decide: -22 +Decide: -21 +Decide: -22 +Decide: -16 +Decide: -17 +Decide: -21 +Decide: -23 +Decide: -24 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -24 +Decide: -28 +Decide: -31 +Decide: -23 +Decide: -21 +Decide: -23 +Decide: -17 +Decide: -21 +Decide: -24 +Decide: -15 +Decide: -16 +Decide: -22 +Decide: -17 +Decide: -22 +Decide: -16 +Decide: -17 +Decide: -23 +Decide: -11 +Decide: -13 +Decide: -14 +Decide: -15 +Decide: -16 +Decide: -18 +Decide: -20 +Decide: -22 +Decide: -23 +Decide: -25 +Decide: -29 +Decide: -30 +Decide: -36 +Decide: -32 +Decide: -36 +Decide: -30 +Decide: -32 +Decide: -37 +Decide: -27 +Decide: -29 +Decide: -30 +Decide: -36 +Decide: -34 +Decide: -36 +Decide: -30 +Decide: -34 +Decide: -37 +Decide: -29 +Decide: -25 +Decide: -27 +Decide: -29 +Decide: -32 +Decide: -36 +Decide: -34 +Decide: -36 +Decide: -32 +Decide: -34 +Decide: -39 +Decide: -29 +Decide: -27 +Decide: -29 +Decide: -23 +Decide: -25 +Decide: -27 +Decide: -30 +Decide: -32 +Decide: -37 +Decide: -34 +Decide: -37 +Decide: -32 +Decide: -34 +Decide: -39 +Decide: -30 +Decide: -27 +Decide: -30 +Decide: -25 +Decide: -27 +Decide: -32 +Decide: -21 +Decide: -22 +Decide: -23 +Decide: -25 +Decide: -29 +Decide: -30 +Decide: -36 +Decide: -32 +Decide: -36 +Decide: -30 +Decide: -32 +Decide: -37 +Decide: -28 +Decide: -29 +Decide: -30 +Decide: -36 +Decide: -35 +Decide: -36 +Decide: -30 +Decide: -35 +Decide: -37 +Decide: -29 +Decide: -25 +Decide: -28 +Decide: -29 +Decide: -32 +Decide: -36 +Decide: -35 +Decide: -36 +Decide: -32 +Decide: -35 +Decide: -39 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -23 +Decide: -25 +Decide: -28 +Decide: -30 +Decide: -32 +Decide: -37 +Decide: -35 +Decide: -37 +Decide: -32 +Decide: -35 +Decide: -39 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -25 +Decide: -28 +Decide: -32 +Decide: -22 +Decide: -23 +Decide: -29 +Decide: -25 +Decide: -29 +Decide: -23 +Decide: -25 +Decide: -30 +Decide: -20 +Decide: -21 +Decide: -22 +Decide: -23 +Decide: -27 +Decide: -29 +Decide: -30 +Decide: -36 +Decide: -34 +Decide: -36 +Decide: -30 +Decide: -34 +Decide: -37 +Decide: -28 +Decide: -29 +Decide: -30 +Decide: -36 +Decide: -35 +Decide: -36 +Decide: -30 +Decide: -35 +Decide: -37 +Decide: -29 +Decide: -27 +Decide: -28 +Decide: -29 +Decide: -34 +Decide: -36 +Decide: -35 +Decide: -36 +Decide: -34 +Decide: -35 +Decide: -41 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -23 +Decide: -27 +Decide: -28 +Decide: -30 +Decide: -34 +Decide: -37 +Decide: -35 +Decide: -37 +Decide: -34 +Decide: -35 +Decide: -41 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -22 +Decide: -23 +Decide: -29 +Decide: -27 +Decide: -29 +Decide: -23 +Decide: -27 +Decide: -30 +Decide: -21 +Decide: -22 +Decide: -23 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -23 +Decide: -28 +Decide: -30 +Decide: -22 +Decide: -18 +Decide: -20 +Decide: -21 +Decide: -22 +Decide: -25 +Decide: -27 +Decide: -29 +Decide: -32 +Decide: -36 +Decide: -34 +Decide: -36 +Decide: -32 +Decide: -34 +Decide: -39 +Decide: -28 +Decide: -29 +Decide: -32 +Decide: -36 +Decide: -35 +Decide: -36 +Decide: -32 +Decide: -35 +Decide: -39 +Decide: -29 +Decide: -27 +Decide: -28 +Decide: -29 +Decide: -34 +Decide: -36 +Decide: -35 +Decide: -36 +Decide: -34 +Decide: -35 +Decide: -41 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -25 +Decide: -27 +Decide: -28 +Decide: -32 +Decide: -34 +Decide: -39 +Decide: -35 +Decide: -39 +Decide: -34 +Decide: -35 +Decide: -41 +Decide: -32 +Decide: -28 +Decide: -32 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -22 +Decide: -25 +Decide: -29 +Decide: -27 +Decide: -29 +Decide: -25 +Decide: -27 +Decide: -32 +Decide: -21 +Decide: -22 +Decide: -25 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -25 +Decide: -28 +Decide: -32 +Decide: -22 +Decide: -20 +Decide: -21 +Decide: -22 +Decide: -27 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -22 +Decide: -21 +Decide: -22 +Decide: -16 +Decide: -18 +Decide: -20 +Decide: -21 +Decide: -23 +Decide: -25 +Decide: -27 +Decide: -30 +Decide: -32 +Decide: -37 +Decide: -34 +Decide: -37 +Decide: -32 +Decide: -34 +Decide: -39 +Decide: -28 +Decide: -30 +Decide: -32 +Decide: -37 +Decide: -35 +Decide: -37 +Decide: -32 +Decide: -35 +Decide: -39 +Decide: -30 +Decide: -27 +Decide: -28 +Decide: -30 +Decide: -34 +Decide: -37 +Decide: -35 +Decide: -37 +Decide: -34 +Decide: -35 +Decide: -41 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -25 +Decide: -27 +Decide: -28 +Decide: -32 +Decide: -34 +Decide: -39 +Decide: -35 +Decide: -39 +Decide: -34 +Decide: -35 +Decide: -41 +Decide: -32 +Decide: -28 +Decide: -32 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -23 +Decide: -25 +Decide: -30 +Decide: -27 +Decide: -30 +Decide: -25 +Decide: -27 +Decide: -32 +Decide: -21 +Decide: -23 +Decide: -25 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -25 +Decide: -28 +Decide: -32 +Decide: -23 +Decide: -20 +Decide: -21 +Decide: -23 +Decide: -27 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -23 +Decide: -21 +Decide: -23 +Decide: -18 +Decide: -20 +Decide: -21 +Decide: -25 +Decide: -27 +Decide: -32 +Decide: -28 +Decide: -32 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -25 +Decide: -21 +Decide: -25 +Decide: -20 +Decide: -21 +Decide: -27 +Decide: -15 +Decide: -16 +Decide: -18 +Decide: -22 +Decide: -23 +Decide: -29 +Decide: -25 +Decide: -29 +Decide: -23 +Decide: -25 +Decide: -30 +Decide: -20 +Decide: -22 +Decide: -23 +Decide: -29 +Decide: -27 +Decide: -29 +Decide: -23 +Decide: -27 +Decide: -30 +Decide: -22 +Decide: -18 +Decide: -20 +Decide: -22 +Decide: -25 +Decide: -29 +Decide: -27 +Decide: -29 +Decide: -25 +Decide: -27 +Decide: -32 +Decide: -22 +Decide: -20 +Decide: -22 +Decide: -16 +Decide: -18 +Decide: -20 +Decide: -23 +Decide: -25 +Decide: -30 +Decide: -27 +Decide: -30 +Decide: -25 +Decide: -27 +Decide: -32 +Decide: -23 +Decide: -20 +Decide: -23 +Decide: -18 +Decide: -20 +Decide: -25 +Decide: -14 +Decide: -15 +Decide: -16 +Decide: -18 +Decide: -22 +Decide: -23 +Decide: -29 +Decide: -25 +Decide: -29 +Decide: -23 +Decide: -25 +Decide: -30 +Decide: -21 +Decide: -22 +Decide: -23 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -23 +Decide: -28 +Decide: -30 +Decide: -22 +Decide: -18 +Decide: -21 +Decide: -22 +Decide: -25 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -25 +Decide: -28 +Decide: -32 +Decide: -22 +Decide: -21 +Decide: -22 +Decide: -16 +Decide: -18 +Decide: -21 +Decide: -23 +Decide: -25 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -25 +Decide: -28 +Decide: -32 +Decide: -23 +Decide: -21 +Decide: -23 +Decide: -18 +Decide: -21 +Decide: -25 +Decide: -15 +Decide: -16 +Decide: -22 +Decide: -18 +Decide: -22 +Decide: -16 +Decide: -18 +Decide: -23 +Decide: -13 +Decide: -14 +Decide: -15 +Decide: -16 +Decide: -20 +Decide: -22 +Decide: -23 +Decide: -29 +Decide: -27 +Decide: -29 +Decide: -23 +Decide: -27 +Decide: -30 +Decide: -21 +Decide: -22 +Decide: -23 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -23 +Decide: -28 +Decide: -30 +Decide: -22 +Decide: -20 +Decide: -21 +Decide: -22 +Decide: -27 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -22 +Decide: -21 +Decide: -22 +Decide: -16 +Decide: -20 +Decide: -21 +Decide: -23 +Decide: -27 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -23 +Decide: -21 +Decide: -23 +Decide: -20 +Decide: -21 +Decide: -27 +Decide: -15 +Decide: -16 +Decide: -22 +Decide: -20 +Decide: -22 +Decide: -16 +Decide: -20 +Decide: -23 +Decide: -14 +Decide: -15 +Decide: -16 +Decide: -22 +Decide: -21 +Decide: -22 +Decide: -16 +Decide: -21 +Decide: -23 +Decide: -15 +Decide: -10 +Decide: -11 +Decide: -13 +Decide: -14 +Decide: -15 +Decide: -17 +Decide: -18 +Decide: -20 +Decide: -22 +Decide: -24 +Decide: -25 +Decide: -29 +Decide: -31 +Decide: -36 +Decide: -32 +Decide: -36 +Decide: -31 +Decide: -32 +Decide: -38 +Decide: -27 +Decide: -29 +Decide: -31 +Decide: -36 +Decide: -34 +Decide: -36 +Decide: -31 +Decide: -34 +Decide: -38 +Decide: -29 +Decide: -25 +Decide: -27 +Decide: -29 +Decide: -32 +Decide: -36 +Decide: -34 +Decide: -36 +Decide: -32 +Decide: -34 +Decide: -39 +Decide: -29 +Decide: -27 +Decide: -29 +Decide: -24 +Decide: -25 +Decide: -27 +Decide: -31 +Decide: -32 +Decide: -38 +Decide: -34 +Decide: -38 +Decide: -32 +Decide: -34 +Decide: -39 +Decide: -31 +Decide: -27 +Decide: -31 +Decide: -25 +Decide: -27 +Decide: -32 +Decide: -21 +Decide: -22 +Decide: -24 +Decide: -25 +Decide: -29 +Decide: -31 +Decide: -36 +Decide: -32 +Decide: -36 +Decide: -31 +Decide: -32 +Decide: -38 +Decide: -28 +Decide: -29 +Decide: -31 +Decide: -36 +Decide: -35 +Decide: -36 +Decide: -31 +Decide: -35 +Decide: -38 +Decide: -29 +Decide: -25 +Decide: -28 +Decide: -29 +Decide: -32 +Decide: -36 +Decide: -35 +Decide: -36 +Decide: -32 +Decide: -35 +Decide: -39 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -24 +Decide: -25 +Decide: -28 +Decide: -31 +Decide: -32 +Decide: -38 +Decide: -35 +Decide: -38 +Decide: -32 +Decide: -35 +Decide: -39 +Decide: -31 +Decide: -28 +Decide: -31 +Decide: -25 +Decide: -28 +Decide: -32 +Decide: -22 +Decide: -24 +Decide: -29 +Decide: -25 +Decide: -29 +Decide: -24 +Decide: -25 +Decide: -31 +Decide: -20 +Decide: -21 +Decide: -22 +Decide: -24 +Decide: -27 +Decide: -29 +Decide: -31 +Decide: -36 +Decide: -34 +Decide: -36 +Decide: -31 +Decide: -34 +Decide: -38 +Decide: -28 +Decide: -29 +Decide: -31 +Decide: -36 +Decide: -35 +Decide: -36 +Decide: -31 +Decide: -35 +Decide: -38 +Decide: -29 +Decide: -27 +Decide: -28 +Decide: -29 +Decide: -34 +Decide: -36 +Decide: -35 +Decide: -36 +Decide: -34 +Decide: -35 +Decide: -41 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -24 +Decide: -27 +Decide: -28 +Decide: -31 +Decide: -34 +Decide: -38 +Decide: -35 +Decide: -38 +Decide: -34 +Decide: -35 +Decide: -41 +Decide: -31 +Decide: -28 +Decide: -31 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -22 +Decide: -24 +Decide: -29 +Decide: -27 +Decide: -29 +Decide: -24 +Decide: -27 +Decide: -31 +Decide: -21 +Decide: -22 +Decide: -24 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -24 +Decide: -28 +Decide: -31 +Decide: -22 +Decide: -18 +Decide: -20 +Decide: -21 +Decide: -22 +Decide: -25 +Decide: -27 +Decide: -29 +Decide: -32 +Decide: -36 +Decide: -34 +Decide: -36 +Decide: -32 +Decide: -34 +Decide: -39 +Decide: -28 +Decide: -29 +Decide: -32 +Decide: -36 +Decide: -35 +Decide: -36 +Decide: -32 +Decide: -35 +Decide: -39 +Decide: -29 +Decide: -27 +Decide: -28 +Decide: -29 +Decide: -34 +Decide: -36 +Decide: -35 +Decide: -36 +Decide: -34 +Decide: -35 +Decide: -41 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -25 +Decide: -27 +Decide: -28 +Decide: -32 +Decide: -34 +Decide: -39 +Decide: -35 +Decide: -39 +Decide: -34 +Decide: -35 +Decide: -41 +Decide: -32 +Decide: -28 +Decide: -32 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -22 +Decide: -25 +Decide: -29 +Decide: -27 +Decide: -29 +Decide: -25 +Decide: -27 +Decide: -32 +Decide: -21 +Decide: -22 +Decide: -25 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -25 +Decide: -28 +Decide: -32 +Decide: -22 +Decide: -20 +Decide: -21 +Decide: -22 +Decide: -27 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -22 +Decide: -21 +Decide: -22 +Decide: -17 +Decide: -18 +Decide: -20 +Decide: -21 +Decide: -24 +Decide: -25 +Decide: -27 +Decide: -31 +Decide: -32 +Decide: -38 +Decide: -34 +Decide: -38 +Decide: -32 +Decide: -34 +Decide: -39 +Decide: -28 +Decide: -31 +Decide: -32 +Decide: -38 +Decide: -35 +Decide: -38 +Decide: -32 +Decide: -35 +Decide: -39 +Decide: -31 +Decide: -27 +Decide: -28 +Decide: -31 +Decide: -34 +Decide: -38 +Decide: -35 +Decide: -38 +Decide: -34 +Decide: -35 +Decide: -41 +Decide: -31 +Decide: -28 +Decide: -31 +Decide: -25 +Decide: -27 +Decide: -28 +Decide: -32 +Decide: -34 +Decide: -39 +Decide: -35 +Decide: -39 +Decide: -34 +Decide: -35 +Decide: -41 +Decide: -32 +Decide: -28 +Decide: -32 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -24 +Decide: -25 +Decide: -31 +Decide: -27 +Decide: -31 +Decide: -25 +Decide: -27 +Decide: -32 +Decide: -21 +Decide: -24 +Decide: -25 +Decide: -31 +Decide: -28 +Decide: -31 +Decide: -25 +Decide: -28 +Decide: -32 +Decide: -24 +Decide: -20 +Decide: -21 +Decide: -24 +Decide: -27 +Decide: -31 +Decide: -28 +Decide: -31 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -24 +Decide: -21 +Decide: -24 +Decide: -18 +Decide: -20 +Decide: -21 +Decide: -25 +Decide: -27 +Decide: -32 +Decide: -28 +Decide: -32 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -25 +Decide: -21 +Decide: -25 +Decide: -20 +Decide: -21 +Decide: -27 +Decide: -15 +Decide: -17 +Decide: -18 +Decide: -22 +Decide: -24 +Decide: -29 +Decide: -25 +Decide: -29 +Decide: -24 +Decide: -25 +Decide: -31 +Decide: -20 +Decide: -22 +Decide: -24 +Decide: -29 +Decide: -27 +Decide: -29 +Decide: -24 +Decide: -27 +Decide: -31 +Decide: -22 +Decide: -18 +Decide: -20 +Decide: -22 +Decide: -25 +Decide: -29 +Decide: -27 +Decide: -29 +Decide: -25 +Decide: -27 +Decide: -32 +Decide: -22 +Decide: -20 +Decide: -22 +Decide: -17 +Decide: -18 +Decide: -20 +Decide: -24 +Decide: -25 +Decide: -31 +Decide: -27 +Decide: -31 +Decide: -25 +Decide: -27 +Decide: -32 +Decide: -24 +Decide: -20 +Decide: -24 +Decide: -18 +Decide: -20 +Decide: -25 +Decide: -14 +Decide: -15 +Decide: -17 +Decide: -18 +Decide: -22 +Decide: -24 +Decide: -29 +Decide: -25 +Decide: -29 +Decide: -24 +Decide: -25 +Decide: -31 +Decide: -21 +Decide: -22 +Decide: -24 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -24 +Decide: -28 +Decide: -31 +Decide: -22 +Decide: -18 +Decide: -21 +Decide: -22 +Decide: -25 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -25 +Decide: -28 +Decide: -32 +Decide: -22 +Decide: -21 +Decide: -22 +Decide: -17 +Decide: -18 +Decide: -21 +Decide: -24 +Decide: -25 +Decide: -31 +Decide: -28 +Decide: -31 +Decide: -25 +Decide: -28 +Decide: -32 +Decide: -24 +Decide: -21 +Decide: -24 +Decide: -18 +Decide: -21 +Decide: -25 +Decide: -15 +Decide: -17 +Decide: -22 +Decide: -18 +Decide: -22 +Decide: -17 +Decide: -18 +Decide: -24 +Decide: -13 +Decide: -14 +Decide: -15 +Decide: -17 +Decide: -20 +Decide: -22 +Decide: -24 +Decide: -29 +Decide: -27 +Decide: -29 +Decide: -24 +Decide: -27 +Decide: -31 +Decide: -21 +Decide: -22 +Decide: -24 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -24 +Decide: -28 +Decide: -31 +Decide: -22 +Decide: -20 +Decide: -21 +Decide: -22 +Decide: -27 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -22 +Decide: -21 +Decide: -22 +Decide: -17 +Decide: -20 +Decide: -21 +Decide: -24 +Decide: -27 +Decide: -31 +Decide: -28 +Decide: -31 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -24 +Decide: -21 +Decide: -24 +Decide: -20 +Decide: -21 +Decide: -27 +Decide: -15 +Decide: -17 +Decide: -22 +Decide: -20 +Decide: -22 +Decide: -17 +Decide: -20 +Decide: -24 +Decide: -14 +Decide: -15 +Decide: -17 +Decide: -22 +Decide: -21 +Decide: -22 +Decide: -17 +Decide: -21 +Decide: -24 +Decide: -15 +Decide: -11 +Decide: -13 +Decide: -14 +Decide: -15 +Decide: -18 +Decide: -20 +Decide: -22 +Decide: -25 +Decide: -29 +Decide: -27 +Decide: -29 +Decide: -25 +Decide: -27 +Decide: -32 +Decide: -21 +Decide: -22 +Decide: -25 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -25 +Decide: -28 +Decide: -32 +Decide: -22 +Decide: -20 +Decide: -21 +Decide: -22 +Decide: -27 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -22 +Decide: -21 +Decide: -22 +Decide: -18 +Decide: -20 +Decide: -21 +Decide: -25 +Decide: -27 +Decide: -32 +Decide: -28 +Decide: -32 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -25 +Decide: -21 +Decide: -25 +Decide: -20 +Decide: -21 +Decide: -27 +Decide: -15 +Decide: -18 +Decide: -22 +Decide: -20 +Decide: -22 +Decide: -18 +Decide: -20 +Decide: -25 +Decide: -14 +Decide: -15 +Decide: -18 +Decide: -22 +Decide: -21 +Decide: -22 +Decide: -18 +Decide: -21 +Decide: -25 +Decide: -15 +Decide: -13 +Decide: -14 +Decide: -15 +Decide: -20 +Decide: -22 +Decide: -21 +Decide: -22 +Decide: -20 +Decide: -21 +Decide: -27 +Decide: -15 +Decide: -14 +Decide: -15 +Decide: -9 +Decide: -10 +Decide: -11 +Decide: -13 +Decide: -14 +Decide: -16 +Decide: -17 +Decide: -18 +Decide: -20 +Decide: -23 +Decide: -24 +Decide: -25 +Decide: -30 +Decide: -31 +Decide: -37 +Decide: -32 +Decide: -37 +Decide: -31 +Decide: -32 +Decide: -38 +Decide: -27 +Decide: -30 +Decide: -31 +Decide: -37 +Decide: -34 +Decide: -37 +Decide: -31 +Decide: -34 +Decide: -38 +Decide: -30 +Decide: -25 +Decide: -27 +Decide: -30 +Decide: -32 +Decide: -37 +Decide: -34 +Decide: -37 +Decide: -32 +Decide: -34 +Decide: -39 +Decide: -30 +Decide: -27 +Decide: -30 +Decide: -24 +Decide: -25 +Decide: -27 +Decide: -31 +Decide: -32 +Decide: -38 +Decide: -34 +Decide: -38 +Decide: -32 +Decide: -34 +Decide: -39 +Decide: -31 +Decide: -27 +Decide: -31 +Decide: -25 +Decide: -27 +Decide: -32 +Decide: -21 +Decide: -23 +Decide: -24 +Decide: -25 +Decide: -30 +Decide: -31 +Decide: -37 +Decide: -32 +Decide: -37 +Decide: -31 +Decide: -32 +Decide: -38 +Decide: -28 +Decide: -30 +Decide: -31 +Decide: -37 +Decide: -35 +Decide: -37 +Decide: -31 +Decide: -35 +Decide: -38 +Decide: -30 +Decide: -25 +Decide: -28 +Decide: -30 +Decide: -32 +Decide: -37 +Decide: -35 +Decide: -37 +Decide: -32 +Decide: -35 +Decide: -39 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -24 +Decide: -25 +Decide: -28 +Decide: -31 +Decide: -32 +Decide: -38 +Decide: -35 +Decide: -38 +Decide: -32 +Decide: -35 +Decide: -39 +Decide: -31 +Decide: -28 +Decide: -31 +Decide: -25 +Decide: -28 +Decide: -32 +Decide: -23 +Decide: -24 +Decide: -30 +Decide: -25 +Decide: -30 +Decide: -24 +Decide: -25 +Decide: -31 +Decide: -20 +Decide: -21 +Decide: -23 +Decide: -24 +Decide: -27 +Decide: -30 +Decide: -31 +Decide: -37 +Decide: -34 +Decide: -37 +Decide: -31 +Decide: -34 +Decide: -38 +Decide: -28 +Decide: -30 +Decide: -31 +Decide: -37 +Decide: -35 +Decide: -37 +Decide: -31 +Decide: -35 +Decide: -38 +Decide: -30 +Decide: -27 +Decide: -28 +Decide: -30 +Decide: -34 +Decide: -37 +Decide: -35 +Decide: -37 +Decide: -34 +Decide: -35 +Decide: -41 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -24 +Decide: -27 +Decide: -28 +Decide: -31 +Decide: -34 +Decide: -38 +Decide: -35 +Decide: -38 +Decide: -34 +Decide: -35 +Decide: -41 +Decide: -31 +Decide: -28 +Decide: -31 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -23 +Decide: -24 +Decide: -30 +Decide: -27 +Decide: -30 +Decide: -24 +Decide: -27 +Decide: -31 +Decide: -21 +Decide: -23 +Decide: -24 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -24 +Decide: -28 +Decide: -31 +Decide: -23 +Decide: -18 +Decide: -20 +Decide: -21 +Decide: -23 +Decide: -25 +Decide: -27 +Decide: -30 +Decide: -32 +Decide: -37 +Decide: -34 +Decide: -37 +Decide: -32 +Decide: -34 +Decide: -39 +Decide: -28 +Decide: -30 +Decide: -32 +Decide: -37 +Decide: -35 +Decide: -37 +Decide: -32 +Decide: -35 +Decide: -39 +Decide: -30 +Decide: -27 +Decide: -28 +Decide: -30 +Decide: -34 +Decide: -37 +Decide: -35 +Decide: -37 +Decide: -34 +Decide: -35 +Decide: -41 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -25 +Decide: -27 +Decide: -28 +Decide: -32 +Decide: -34 +Decide: -39 +Decide: -35 +Decide: -39 +Decide: -34 +Decide: -35 +Decide: -41 +Decide: -32 +Decide: -28 +Decide: -32 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -23 +Decide: -25 +Decide: -30 +Decide: -27 +Decide: -30 +Decide: -25 +Decide: -27 +Decide: -32 +Decide: -21 +Decide: -23 +Decide: -25 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -25 +Decide: -28 +Decide: -32 +Decide: -23 +Decide: -20 +Decide: -21 +Decide: -23 +Decide: -27 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -23 +Decide: -21 +Decide: -23 +Decide: -17 +Decide: -18 +Decide: -20 +Decide: -21 +Decide: -24 +Decide: -25 +Decide: -27 +Decide: -31 +Decide: -32 +Decide: -38 +Decide: -34 +Decide: -38 +Decide: -32 +Decide: -34 +Decide: -39 +Decide: -28 +Decide: -31 +Decide: -32 +Decide: -38 +Decide: -35 +Decide: -38 +Decide: -32 +Decide: -35 +Decide: -39 +Decide: -31 +Decide: -27 +Decide: -28 +Decide: -31 +Decide: -34 +Decide: -38 +Decide: -35 +Decide: -38 +Decide: -34 +Decide: -35 +Decide: -41 +Decide: -31 +Decide: -28 +Decide: -31 +Decide: -25 +Decide: -27 +Decide: -28 +Decide: -32 +Decide: -34 +Decide: -39 +Decide: -35 +Decide: -39 +Decide: -34 +Decide: -35 +Decide: -41 +Decide: -32 +Decide: -28 +Decide: -32 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -24 +Decide: -25 +Decide: -31 +Decide: -27 +Decide: -31 +Decide: -25 +Decide: -27 +Decide: -32 +Decide: -21 +Decide: -24 +Decide: -25 +Decide: -31 +Decide: -28 +Decide: -31 +Decide: -25 +Decide: -28 +Decide: -32 +Decide: -24 +Decide: -20 +Decide: -21 +Decide: -24 +Decide: -27 +Decide: -31 +Decide: -28 +Decide: -31 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -24 +Decide: -21 +Decide: -24 +Decide: -18 +Decide: -20 +Decide: -21 +Decide: -25 +Decide: -27 +Decide: -32 +Decide: -28 +Decide: -32 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -25 +Decide: -21 +Decide: -25 +Decide: -20 +Decide: -21 +Decide: -27 +Decide: -16 +Decide: -17 +Decide: -18 +Decide: -23 +Decide: -24 +Decide: -30 +Decide: -25 +Decide: -30 +Decide: -24 +Decide: -25 +Decide: -31 +Decide: -20 +Decide: -23 +Decide: -24 +Decide: -30 +Decide: -27 +Decide: -30 +Decide: -24 +Decide: -27 +Decide: -31 +Decide: -23 +Decide: -18 +Decide: -20 +Decide: -23 +Decide: -25 +Decide: -30 +Decide: -27 +Decide: -30 +Decide: -25 +Decide: -27 +Decide: -32 +Decide: -23 +Decide: -20 +Decide: -23 +Decide: -17 +Decide: -18 +Decide: -20 +Decide: -24 +Decide: -25 +Decide: -31 +Decide: -27 +Decide: -31 +Decide: -25 +Decide: -27 +Decide: -32 +Decide: -24 +Decide: -20 +Decide: -24 +Decide: -18 +Decide: -20 +Decide: -25 +Decide: -14 +Decide: -16 +Decide: -17 +Decide: -18 +Decide: -23 +Decide: -24 +Decide: -30 +Decide: -25 +Decide: -30 +Decide: -24 +Decide: -25 +Decide: -31 +Decide: -21 +Decide: -23 +Decide: -24 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -24 +Decide: -28 +Decide: -31 +Decide: -23 +Decide: -18 +Decide: -21 +Decide: -23 +Decide: -25 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -25 +Decide: -28 +Decide: -32 +Decide: -23 +Decide: -21 +Decide: -23 +Decide: -17 +Decide: -18 +Decide: -21 +Decide: -24 +Decide: -25 +Decide: -31 +Decide: -28 +Decide: -31 +Decide: -25 +Decide: -28 +Decide: -32 +Decide: -24 +Decide: -21 +Decide: -24 +Decide: -18 +Decide: -21 +Decide: -25 +Decide: -16 +Decide: -17 +Decide: -23 +Decide: -18 +Decide: -23 +Decide: -17 +Decide: -18 +Decide: -24 +Decide: -13 +Decide: -14 +Decide: -16 +Decide: -17 +Decide: -20 +Decide: -23 +Decide: -24 +Decide: -30 +Decide: -27 +Decide: -30 +Decide: -24 +Decide: -27 +Decide: -31 +Decide: -21 +Decide: -23 +Decide: -24 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -24 +Decide: -28 +Decide: -31 +Decide: -23 +Decide: -20 +Decide: -21 +Decide: -23 +Decide: -27 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -23 +Decide: -21 +Decide: -23 +Decide: -17 +Decide: -20 +Decide: -21 +Decide: -24 +Decide: -27 +Decide: -31 +Decide: -28 +Decide: -31 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -24 +Decide: -21 +Decide: -24 +Decide: -20 +Decide: -21 +Decide: -27 +Decide: -16 +Decide: -17 +Decide: -23 +Decide: -20 +Decide: -23 +Decide: -17 +Decide: -20 +Decide: -24 +Decide: -14 +Decide: -16 +Decide: -17 +Decide: -23 +Decide: -21 +Decide: -23 +Decide: -17 +Decide: -21 +Decide: -24 +Decide: -16 +Decide: -11 +Decide: -13 +Decide: -14 +Decide: -16 +Decide: -18 +Decide: -20 +Decide: -23 +Decide: -25 +Decide: -30 +Decide: -27 +Decide: -30 +Decide: -25 +Decide: -27 +Decide: -32 +Decide: -21 +Decide: -23 +Decide: -25 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -25 +Decide: -28 +Decide: -32 +Decide: -23 +Decide: -20 +Decide: -21 +Decide: -23 +Decide: -27 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -23 +Decide: -21 +Decide: -23 +Decide: -18 +Decide: -20 +Decide: -21 +Decide: -25 +Decide: -27 +Decide: -32 +Decide: -28 +Decide: -32 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -25 +Decide: -21 +Decide: -25 +Decide: -20 +Decide: -21 +Decide: -27 +Decide: -16 +Decide: -18 +Decide: -23 +Decide: -20 +Decide: -23 +Decide: -18 +Decide: -20 +Decide: -25 +Decide: -14 +Decide: -16 +Decide: -18 +Decide: -23 +Decide: -21 +Decide: -23 +Decide: -18 +Decide: -21 +Decide: -25 +Decide: -16 +Decide: -13 +Decide: -14 +Decide: -16 +Decide: -20 +Decide: -23 +Decide: -21 +Decide: -23 +Decide: -20 +Decide: -21 +Decide: -27 +Decide: -16 +Decide: -14 +Decide: -16 +Decide: -10 +Decide: -11 +Decide: -13 +Decide: -14 +Decide: -17 +Decide: -18 +Decide: -20 +Decide: -24 +Decide: -25 +Decide: -31 +Decide: -27 +Decide: -31 +Decide: -25 +Decide: -27 +Decide: -32 +Decide: -21 +Decide: -24 +Decide: -25 +Decide: -31 +Decide: -28 +Decide: -31 +Decide: -25 +Decide: -28 +Decide: -32 +Decide: -24 +Decide: -20 +Decide: -21 +Decide: -24 +Decide: -27 +Decide: -31 +Decide: -28 +Decide: -31 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -24 +Decide: -21 +Decide: -24 +Decide: -18 +Decide: -20 +Decide: -21 +Decide: -25 +Decide: -27 +Decide: -32 +Decide: -28 +Decide: -32 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -25 +Decide: -21 +Decide: -25 +Decide: -20 +Decide: -21 +Decide: -27 +Decide: -17 +Decide: -18 +Decide: -24 +Decide: -20 +Decide: -24 +Decide: -18 +Decide: -20 +Decide: -25 +Decide: -14 +Decide: -17 +Decide: -18 +Decide: -24 +Decide: -21 +Decide: -24 +Decide: -18 +Decide: -21 +Decide: -25 +Decide: -17 +Decide: -13 +Decide: -14 +Decide: -17 +Decide: -20 +Decide: -24 +Decide: -21 +Decide: -24 +Decide: -20 +Decide: -21 +Decide: -27 +Decide: -17 +Decide: -14 +Decide: -17 +Decide: -11 +Decide: -13 +Decide: -14 +Decide: -18 +Decide: -20 +Decide: -25 +Decide: -21 +Decide: -25 +Decide: -20 +Decide: -21 +Decide: -27 +Decide: -18 +Decide: -14 +Decide: -18 +Decide: -13 +Decide: -14 +Decide: -20 +Decide: -8 +Decide: -9 +Decide: -10 +Decide: -11 +Decide: -15 +Decide: -16 +Decide: -17 +Decide: -22 +Decide: -23 +Decide: -29 +Decide: -24 +Decide: -29 +Decide: -23 +Decide: -24 +Decide: -30 +Decide: -18 +Decide: -22 +Decide: -23 +Decide: -29 +Decide: -25 +Decide: -29 +Decide: -23 +Decide: -25 +Decide: -30 +Decide: -22 +Decide: -17 +Decide: -18 +Decide: -22 +Decide: -24 +Decide: -29 +Decide: -25 +Decide: -29 +Decide: -24 +Decide: -25 +Decide: -31 +Decide: -22 +Decide: -18 +Decide: -22 +Decide: -16 +Decide: -17 +Decide: -18 +Decide: -23 +Decide: -24 +Decide: -30 +Decide: -25 +Decide: -30 +Decide: -24 +Decide: -25 +Decide: -31 +Decide: -23 +Decide: -18 +Decide: -23 +Decide: -17 +Decide: -18 +Decide: -24 +Decide: -13 +Decide: -15 +Decide: -16 +Decide: -17 +Decide: -22 +Decide: -23 +Decide: -29 +Decide: -24 +Decide: -29 +Decide: -23 +Decide: -24 +Decide: -30 +Decide: -20 +Decide: -22 +Decide: -23 +Decide: -29 +Decide: -27 +Decide: -29 +Decide: -23 +Decide: -27 +Decide: -30 +Decide: -22 +Decide: -17 +Decide: -20 +Decide: -22 +Decide: -24 +Decide: -29 +Decide: -27 +Decide: -29 +Decide: -24 +Decide: -27 +Decide: -31 +Decide: -22 +Decide: -20 +Decide: -22 +Decide: -16 +Decide: -17 +Decide: -20 +Decide: -23 +Decide: -24 +Decide: -30 +Decide: -27 +Decide: -30 +Decide: -24 +Decide: -27 +Decide: -31 +Decide: -23 +Decide: -20 +Decide: -23 +Decide: -17 +Decide: -20 +Decide: -24 +Decide: -15 +Decide: -16 +Decide: -22 +Decide: -17 +Decide: -22 +Decide: -16 +Decide: -17 +Decide: -23 +Decide: -11 +Decide: -13 +Decide: -15 +Decide: -16 +Decide: -18 +Decide: -22 +Decide: -23 +Decide: -29 +Decide: -25 +Decide: -29 +Decide: -23 +Decide: -25 +Decide: -30 +Decide: -20 +Decide: -22 +Decide: -23 +Decide: -29 +Decide: -27 +Decide: -29 +Decide: -23 +Decide: -27 +Decide: -30 +Decide: -22 +Decide: -18 +Decide: -20 +Decide: -22 +Decide: -25 +Decide: -29 +Decide: -27 +Decide: -29 +Decide: -25 +Decide: -27 +Decide: -32 +Decide: -22 +Decide: -20 +Decide: -22 +Decide: -16 +Decide: -18 +Decide: -20 +Decide: -23 +Decide: -25 +Decide: -30 +Decide: -27 +Decide: -30 +Decide: -25 +Decide: -27 +Decide: -32 +Decide: -23 +Decide: -20 +Decide: -23 +Decide: -18 +Decide: -20 +Decide: -25 +Decide: -15 +Decide: -16 +Decide: -22 +Decide: -18 +Decide: -22 +Decide: -16 +Decide: -18 +Decide: -23 +Decide: -13 +Decide: -15 +Decide: -16 +Decide: -22 +Decide: -20 +Decide: -22 +Decide: -16 +Decide: -20 +Decide: -23 +Decide: -15 +Decide: -10 +Decide: -11 +Decide: -13 +Decide: -15 +Decide: -17 +Decide: -18 +Decide: -22 +Decide: -24 +Decide: -29 +Decide: -25 +Decide: -29 +Decide: -24 +Decide: -25 +Decide: -31 +Decide: -20 +Decide: -22 +Decide: -24 +Decide: -29 +Decide: -27 +Decide: -29 +Decide: -24 +Decide: -27 +Decide: -31 +Decide: -22 +Decide: -18 +Decide: -20 +Decide: -22 +Decide: -25 +Decide: -29 +Decide: -27 +Decide: -29 +Decide: -25 +Decide: -27 +Decide: -32 +Decide: -22 +Decide: -20 +Decide: -22 +Decide: -17 +Decide: -18 +Decide: -20 +Decide: -24 +Decide: -25 +Decide: -31 +Decide: -27 +Decide: -31 +Decide: -25 +Decide: -27 +Decide: -32 +Decide: -24 +Decide: -20 +Decide: -24 +Decide: -18 +Decide: -20 +Decide: -25 +Decide: -15 +Decide: -17 +Decide: -22 +Decide: -18 +Decide: -22 +Decide: -17 +Decide: -18 +Decide: -24 +Decide: -13 +Decide: -15 +Decide: -17 +Decide: -22 +Decide: -20 +Decide: -22 +Decide: -17 +Decide: -20 +Decide: -24 +Decide: -15 +Decide: -11 +Decide: -13 +Decide: -15 +Decide: -18 +Decide: -22 +Decide: -20 +Decide: -22 +Decide: -18 +Decide: -20 +Decide: -25 +Decide: -15 +Decide: -13 +Decide: -15 +Decide: -9 +Decide: -10 +Decide: -11 +Decide: -13 +Decide: -16 +Decide: -17 +Decide: -18 +Decide: -23 +Decide: -24 +Decide: -30 +Decide: -25 +Decide: -30 +Decide: -24 +Decide: -25 +Decide: -31 +Decide: -20 +Decide: -23 +Decide: -24 +Decide: -30 +Decide: -27 +Decide: -30 +Decide: -24 +Decide: -27 +Decide: -31 +Decide: -23 +Decide: -18 +Decide: -20 +Decide: -23 +Decide: -25 +Decide: -30 +Decide: -27 +Decide: -30 +Decide: -25 +Decide: -27 +Decide: -32 +Decide: -23 +Decide: -20 +Decide: -23 +Decide: -17 +Decide: -18 +Decide: -20 +Decide: -24 +Decide: -25 +Decide: -31 +Decide: -27 +Decide: -31 +Decide: -25 +Decide: -27 +Decide: -32 +Decide: -24 +Decide: -20 +Decide: -24 +Decide: -18 +Decide: -20 +Decide: -25 +Decide: -16 +Decide: -17 +Decide: -23 +Decide: -18 +Decide: -23 +Decide: -17 +Decide: -18 +Decide: -24 +Decide: -13 +Decide: -16 +Decide: -17 +Decide: -23 +Decide: -20 +Decide: -23 +Decide: -17 +Decide: -20 +Decide: -24 +Decide: -16 +Decide: -11 +Decide: -13 +Decide: -16 +Decide: -18 +Decide: -23 +Decide: -20 +Decide: -23 +Decide: -18 +Decide: -20 +Decide: -25 +Decide: -16 +Decide: -13 +Decide: -16 +Decide: -10 +Decide: -11 +Decide: -13 +Decide: -17 +Decide: -18 +Decide: -24 +Decide: -20 +Decide: -24 +Decide: -18 +Decide: -20 +Decide: -25 +Decide: -17 +Decide: -13 +Decide: -17 +Decide: -11 +Decide: -13 +Decide: -18 +Decide: -7 +Decide: -8 +Decide: -9 +Decide: -10 +Decide: -11 +Decide: -15 +Decide: -16 +Decide: -17 +Decide: -22 +Decide: -23 +Decide: -29 +Decide: -24 +Decide: -29 +Decide: -23 +Decide: -24 +Decide: -30 +Decide: -18 +Decide: -22 +Decide: -23 +Decide: -29 +Decide: -25 +Decide: -29 +Decide: -23 +Decide: -25 +Decide: -30 +Decide: -22 +Decide: -17 +Decide: -18 +Decide: -22 +Decide: -24 +Decide: -29 +Decide: -25 +Decide: -29 +Decide: -24 +Decide: -25 +Decide: -31 +Decide: -22 +Decide: -18 +Decide: -22 +Decide: -16 +Decide: -17 +Decide: -18 +Decide: -23 +Decide: -24 +Decide: -30 +Decide: -25 +Decide: -30 +Decide: -24 +Decide: -25 +Decide: -31 +Decide: -23 +Decide: -18 +Decide: -23 +Decide: -17 +Decide: -18 +Decide: -24 +Decide: -14 +Decide: -15 +Decide: -16 +Decide: -17 +Decide: -22 +Decide: -23 +Decide: -29 +Decide: -24 +Decide: -29 +Decide: -23 +Decide: -24 +Decide: -30 +Decide: -21 +Decide: -22 +Decide: -23 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -23 +Decide: -28 +Decide: -30 +Decide: -22 +Decide: -17 +Decide: -21 +Decide: -22 +Decide: -24 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -24 +Decide: -28 +Decide: -31 +Decide: -22 +Decide: -21 +Decide: -22 +Decide: -16 +Decide: -17 +Decide: -21 +Decide: -23 +Decide: -24 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -24 +Decide: -28 +Decide: -31 +Decide: -23 +Decide: -21 +Decide: -23 +Decide: -17 +Decide: -21 +Decide: -24 +Decide: -15 +Decide: -16 +Decide: -22 +Decide: -17 +Decide: -22 +Decide: -16 +Decide: -17 +Decide: -23 +Decide: -11 +Decide: -14 +Decide: -15 +Decide: -16 +Decide: -18 +Decide: -22 +Decide: -23 +Decide: -29 +Decide: -25 +Decide: -29 +Decide: -23 +Decide: -25 +Decide: -30 +Decide: -21 +Decide: -22 +Decide: -23 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -23 +Decide: -28 +Decide: -30 +Decide: -22 +Decide: -18 +Decide: -21 +Decide: -22 +Decide: -25 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -25 +Decide: -28 +Decide: -32 +Decide: -22 +Decide: -21 +Decide: -22 +Decide: -16 +Decide: -18 +Decide: -21 +Decide: -23 +Decide: -25 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -25 +Decide: -28 +Decide: -32 +Decide: -23 +Decide: -21 +Decide: -23 +Decide: -18 +Decide: -21 +Decide: -25 +Decide: -15 +Decide: -16 +Decide: -22 +Decide: -18 +Decide: -22 +Decide: -16 +Decide: -18 +Decide: -23 +Decide: -14 +Decide: -15 +Decide: -16 +Decide: -22 +Decide: -21 +Decide: -22 +Decide: -16 +Decide: -21 +Decide: -23 +Decide: -15 +Decide: -10 +Decide: -11 +Decide: -14 +Decide: -15 +Decide: -17 +Decide: -18 +Decide: -22 +Decide: -24 +Decide: -29 +Decide: -25 +Decide: -29 +Decide: -24 +Decide: -25 +Decide: -31 +Decide: -21 +Decide: -22 +Decide: -24 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -24 +Decide: -28 +Decide: -31 +Decide: -22 +Decide: -18 +Decide: -21 +Decide: -22 +Decide: -25 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -25 +Decide: -28 +Decide: -32 +Decide: -22 +Decide: -21 +Decide: -22 +Decide: -17 +Decide: -18 +Decide: -21 +Decide: -24 +Decide: -25 +Decide: -31 +Decide: -28 +Decide: -31 +Decide: -25 +Decide: -28 +Decide: -32 +Decide: -24 +Decide: -21 +Decide: -24 +Decide: -18 +Decide: -21 +Decide: -25 +Decide: -15 +Decide: -17 +Decide: -22 +Decide: -18 +Decide: -22 +Decide: -17 +Decide: -18 +Decide: -24 +Decide: -14 +Decide: -15 +Decide: -17 +Decide: -22 +Decide: -21 +Decide: -22 +Decide: -17 +Decide: -21 +Decide: -24 +Decide: -15 +Decide: -11 +Decide: -14 +Decide: -15 +Decide: -18 +Decide: -22 +Decide: -21 +Decide: -22 +Decide: -18 +Decide: -21 +Decide: -25 +Decide: -15 +Decide: -14 +Decide: -15 +Decide: -9 +Decide: -10 +Decide: -11 +Decide: -14 +Decide: -16 +Decide: -17 +Decide: -18 +Decide: -23 +Decide: -24 +Decide: -30 +Decide: -25 +Decide: -30 +Decide: -24 +Decide: -25 +Decide: -31 +Decide: -21 +Decide: -23 +Decide: -24 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -24 +Decide: -28 +Decide: -31 +Decide: -23 +Decide: -18 +Decide: -21 +Decide: -23 +Decide: -25 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -25 +Decide: -28 +Decide: -32 +Decide: -23 +Decide: -21 +Decide: -23 +Decide: -17 +Decide: -18 +Decide: -21 +Decide: -24 +Decide: -25 +Decide: -31 +Decide: -28 +Decide: -31 +Decide: -25 +Decide: -28 +Decide: -32 +Decide: -24 +Decide: -21 +Decide: -24 +Decide: -18 +Decide: -21 +Decide: -25 +Decide: -16 +Decide: -17 +Decide: -23 +Decide: -18 +Decide: -23 +Decide: -17 +Decide: -18 +Decide: -24 +Decide: -14 +Decide: -16 +Decide: -17 +Decide: -23 +Decide: -21 +Decide: -23 +Decide: -17 +Decide: -21 +Decide: -24 +Decide: -16 +Decide: -11 +Decide: -14 +Decide: -16 +Decide: -18 +Decide: -23 +Decide: -21 +Decide: -23 +Decide: -18 +Decide: -21 +Decide: -25 +Decide: -16 +Decide: -14 +Decide: -16 +Decide: -10 +Decide: -11 +Decide: -14 +Decide: -17 +Decide: -18 +Decide: -24 +Decide: -21 +Decide: -24 +Decide: -18 +Decide: -21 +Decide: -25 +Decide: -17 +Decide: -14 +Decide: -17 +Decide: -11 +Decide: -14 +Decide: -18 +Decide: -8 +Decide: -9 +Decide: -10 +Decide: -15 +Decide: -16 +Decide: -22 +Decide: -17 +Decide: -22 +Decide: -16 +Decide: -17 +Decide: -23 +Decide: -11 +Decide: -15 +Decide: -16 +Decide: -22 +Decide: -18 +Decide: -22 +Decide: -16 +Decide: -18 +Decide: -23 +Decide: -15 +Decide: -10 +Decide: -11 +Decide: -15 +Decide: -17 +Decide: -22 +Decide: -18 +Decide: -22 +Decide: -17 +Decide: -18 +Decide: -24 +Decide: -15 +Decide: -11 +Decide: -15 +Decide: -9 +Decide: -10 +Decide: -11 +Decide: -16 +Decide: -17 +Decide: -23 +Decide: -18 +Decide: -23 +Decide: -17 +Decide: -18 +Decide: -24 +Decide: -16 +Decide: -11 +Decide: -16 +Decide: -10 +Decide: -11 +Decide: -17 +Decide: -5 +Decide: -6 +Decide: -7 +Decide: -8 +Decide: -9 +Decide: -10 +Decide: -12 +Decide: -13 +Decide: -15 +Decide: -16 +Decide: -17 +Decide: -19 +Decide: -22 +Decide: -23 +Decide: -24 +Decide: -29 +Decide: -30 +Decide: -36 +Decide: -31 +Decide: -36 +Decide: -30 +Decide: -31 +Decide: -37 +Decide: -26 +Decide: -29 +Decide: -30 +Decide: -36 +Decide: -33 +Decide: -36 +Decide: -30 +Decide: -33 +Decide: -37 +Decide: -29 +Decide: -24 +Decide: -26 +Decide: -29 +Decide: -31 +Decide: -36 +Decide: -33 +Decide: -36 +Decide: -31 +Decide: -33 +Decide: -38 +Decide: -29 +Decide: -26 +Decide: -29 +Decide: -23 +Decide: -24 +Decide: -26 +Decide: -30 +Decide: -31 +Decide: -37 +Decide: -33 +Decide: -37 +Decide: -31 +Decide: -33 +Decide: -38 +Decide: -30 +Decide: -26 +Decide: -30 +Decide: -24 +Decide: -26 +Decide: -31 +Decide: -20 +Decide: -22 +Decide: -23 +Decide: -24 +Decide: -29 +Decide: -30 +Decide: -36 +Decide: -31 +Decide: -36 +Decide: -30 +Decide: -31 +Decide: -37 +Decide: -27 +Decide: -29 +Decide: -30 +Decide: -36 +Decide: -34 +Decide: -36 +Decide: -30 +Decide: -34 +Decide: -37 +Decide: -29 +Decide: -24 +Decide: -27 +Decide: -29 +Decide: -31 +Decide: -36 +Decide: -34 +Decide: -36 +Decide: -31 +Decide: -34 +Decide: -38 +Decide: -29 +Decide: -27 +Decide: -29 +Decide: -23 +Decide: -24 +Decide: -27 +Decide: -30 +Decide: -31 +Decide: -37 +Decide: -34 +Decide: -37 +Decide: -31 +Decide: -34 +Decide: -38 +Decide: -30 +Decide: -27 +Decide: -30 +Decide: -24 +Decide: -27 +Decide: -31 +Decide: -22 +Decide: -23 +Decide: -29 +Decide: -24 +Decide: -29 +Decide: -23 +Decide: -24 +Decide: -30 +Decide: -19 +Decide: -20 +Decide: -22 +Decide: -23 +Decide: -26 +Decide: -29 +Decide: -30 +Decide: -36 +Decide: -33 +Decide: -36 +Decide: -30 +Decide: -33 +Decide: -37 +Decide: -27 +Decide: -29 +Decide: -30 +Decide: -36 +Decide: -34 +Decide: -36 +Decide: -30 +Decide: -34 +Decide: -37 +Decide: -29 +Decide: -26 +Decide: -27 +Decide: -29 +Decide: -33 +Decide: -36 +Decide: -34 +Decide: -36 +Decide: -33 +Decide: -34 +Decide: -40 +Decide: -29 +Decide: -27 +Decide: -29 +Decide: -23 +Decide: -26 +Decide: -27 +Decide: -30 +Decide: -33 +Decide: -37 +Decide: -34 +Decide: -37 +Decide: -33 +Decide: -34 +Decide: -40 +Decide: -30 +Decide: -27 +Decide: -30 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -22 +Decide: -23 +Decide: -29 +Decide: -26 +Decide: -29 +Decide: -23 +Decide: -26 +Decide: -30 +Decide: -20 +Decide: -22 +Decide: -23 +Decide: -29 +Decide: -27 +Decide: -29 +Decide: -23 +Decide: -27 +Decide: -30 +Decide: -22 +Decide: -17 +Decide: -19 +Decide: -20 +Decide: -22 +Decide: -24 +Decide: -26 +Decide: -29 +Decide: -31 +Decide: -36 +Decide: -33 +Decide: -36 +Decide: -31 +Decide: -33 +Decide: -38 +Decide: -27 +Decide: -29 +Decide: -31 +Decide: -36 +Decide: -34 +Decide: -36 +Decide: -31 +Decide: -34 +Decide: -38 +Decide: -29 +Decide: -26 +Decide: -27 +Decide: -29 +Decide: -33 +Decide: -36 +Decide: -34 +Decide: -36 +Decide: -33 +Decide: -34 +Decide: -40 +Decide: -29 +Decide: -27 +Decide: -29 +Decide: -24 +Decide: -26 +Decide: -27 +Decide: -31 +Decide: -33 +Decide: -38 +Decide: -34 +Decide: -38 +Decide: -33 +Decide: -34 +Decide: -40 +Decide: -31 +Decide: -27 +Decide: -31 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -22 +Decide: -24 +Decide: -29 +Decide: -26 +Decide: -29 +Decide: -24 +Decide: -26 +Decide: -31 +Decide: -20 +Decide: -22 +Decide: -24 +Decide: -29 +Decide: -27 +Decide: -29 +Decide: -24 +Decide: -27 +Decide: -31 +Decide: -22 +Decide: -19 +Decide: -20 +Decide: -22 +Decide: -26 +Decide: -29 +Decide: -27 +Decide: -29 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -22 +Decide: -20 +Decide: -22 +Decide: -16 +Decide: -17 +Decide: -19 +Decide: -20 +Decide: -23 +Decide: -24 +Decide: -26 +Decide: -30 +Decide: -31 +Decide: -37 +Decide: -33 +Decide: -37 +Decide: -31 +Decide: -33 +Decide: -38 +Decide: -27 +Decide: -30 +Decide: -31 +Decide: -37 +Decide: -34 +Decide: -37 +Decide: -31 +Decide: -34 +Decide: -38 +Decide: -30 +Decide: -26 +Decide: -27 +Decide: -30 +Decide: -33 +Decide: -37 +Decide: -34 +Decide: -37 +Decide: -33 +Decide: -34 +Decide: -40 +Decide: -30 +Decide: -27 +Decide: -30 +Decide: -24 +Decide: -26 +Decide: -27 +Decide: -31 +Decide: -33 +Decide: -38 +Decide: -34 +Decide: -38 +Decide: -33 +Decide: -34 +Decide: -40 +Decide: -31 +Decide: -27 +Decide: -31 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -23 +Decide: -24 +Decide: -30 +Decide: -26 +Decide: -30 +Decide: -24 +Decide: -26 +Decide: -31 +Decide: -20 +Decide: -23 +Decide: -24 +Decide: -30 +Decide: -27 +Decide: -30 +Decide: -24 +Decide: -27 +Decide: -31 +Decide: -23 +Decide: -19 +Decide: -20 +Decide: -23 +Decide: -26 +Decide: -30 +Decide: -27 +Decide: -30 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -23 +Decide: -20 +Decide: -23 +Decide: -17 +Decide: -19 +Decide: -20 +Decide: -24 +Decide: -26 +Decide: -31 +Decide: -27 +Decide: -31 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -24 +Decide: -20 +Decide: -24 +Decide: -19 +Decide: -20 +Decide: -26 +Decide: -14 +Decide: -15 +Decide: -16 +Decide: -17 +Decide: -19 +Decide: -22 +Decide: -23 +Decide: -24 +Decide: -29 +Decide: -30 +Decide: -36 +Decide: -31 +Decide: -36 +Decide: -30 +Decide: -31 +Decide: -37 +Decide: -26 +Decide: -29 +Decide: -30 +Decide: -36 +Decide: -33 +Decide: -36 +Decide: -30 +Decide: -33 +Decide: -37 +Decide: -29 +Decide: -24 +Decide: -26 +Decide: -29 +Decide: -31 +Decide: -36 +Decide: -33 +Decide: -36 +Decide: -31 +Decide: -33 +Decide: -38 +Decide: -29 +Decide: -26 +Decide: -29 +Decide: -23 +Decide: -24 +Decide: -26 +Decide: -30 +Decide: -31 +Decide: -37 +Decide: -33 +Decide: -37 +Decide: -31 +Decide: -33 +Decide: -38 +Decide: -30 +Decide: -26 +Decide: -30 +Decide: -24 +Decide: -26 +Decide: -31 +Decide: -21 +Decide: -22 +Decide: -23 +Decide: -24 +Decide: -29 +Decide: -30 +Decide: -36 +Decide: -31 +Decide: -36 +Decide: -30 +Decide: -31 +Decide: -37 +Decide: -28 +Decide: -29 +Decide: -30 +Decide: -36 +Decide: -35 +Decide: -36 +Decide: -30 +Decide: -35 +Decide: -37 +Decide: -29 +Decide: -24 +Decide: -28 +Decide: -29 +Decide: -31 +Decide: -36 +Decide: -35 +Decide: -36 +Decide: -31 +Decide: -35 +Decide: -38 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -23 +Decide: -24 +Decide: -28 +Decide: -30 +Decide: -31 +Decide: -37 +Decide: -35 +Decide: -37 +Decide: -31 +Decide: -35 +Decide: -38 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -24 +Decide: -28 +Decide: -31 +Decide: -22 +Decide: -23 +Decide: -29 +Decide: -24 +Decide: -29 +Decide: -23 +Decide: -24 +Decide: -30 +Decide: -19 +Decide: -21 +Decide: -22 +Decide: -23 +Decide: -26 +Decide: -29 +Decide: -30 +Decide: -36 +Decide: -33 +Decide: -36 +Decide: -30 +Decide: -33 +Decide: -37 +Decide: -28 +Decide: -29 +Decide: -30 +Decide: -36 +Decide: -35 +Decide: -36 +Decide: -30 +Decide: -35 +Decide: -37 +Decide: -29 +Decide: -26 +Decide: -28 +Decide: -29 +Decide: -33 +Decide: -36 +Decide: -35 +Decide: -36 +Decide: -33 +Decide: -35 +Decide: -40 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -23 +Decide: -26 +Decide: -28 +Decide: -30 +Decide: -33 +Decide: -37 +Decide: -35 +Decide: -37 +Decide: -33 +Decide: -35 +Decide: -40 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -26 +Decide: -28 +Decide: -33 +Decide: -22 +Decide: -23 +Decide: -29 +Decide: -26 +Decide: -29 +Decide: -23 +Decide: -26 +Decide: -30 +Decide: -21 +Decide: -22 +Decide: -23 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -23 +Decide: -28 +Decide: -30 +Decide: -22 +Decide: -17 +Decide: -19 +Decide: -21 +Decide: -22 +Decide: -24 +Decide: -26 +Decide: -29 +Decide: -31 +Decide: -36 +Decide: -33 +Decide: -36 +Decide: -31 +Decide: -33 +Decide: -38 +Decide: -28 +Decide: -29 +Decide: -31 +Decide: -36 +Decide: -35 +Decide: -36 +Decide: -31 +Decide: -35 +Decide: -38 +Decide: -29 +Decide: -26 +Decide: -28 +Decide: -29 +Decide: -33 +Decide: -36 +Decide: -35 +Decide: -36 +Decide: -33 +Decide: -35 +Decide: -40 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -24 +Decide: -26 +Decide: -28 +Decide: -31 +Decide: -33 +Decide: -38 +Decide: -35 +Decide: -38 +Decide: -33 +Decide: -35 +Decide: -40 +Decide: -31 +Decide: -28 +Decide: -31 +Decide: -26 +Decide: -28 +Decide: -33 +Decide: -22 +Decide: -24 +Decide: -29 +Decide: -26 +Decide: -29 +Decide: -24 +Decide: -26 +Decide: -31 +Decide: -21 +Decide: -22 +Decide: -24 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -24 +Decide: -28 +Decide: -31 +Decide: -22 +Decide: -19 +Decide: -21 +Decide: -22 +Decide: -26 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -26 +Decide: -28 +Decide: -33 +Decide: -22 +Decide: -21 +Decide: -22 +Decide: -16 +Decide: -17 +Decide: -19 +Decide: -21 +Decide: -23 +Decide: -24 +Decide: -26 +Decide: -30 +Decide: -31 +Decide: -37 +Decide: -33 +Decide: -37 +Decide: -31 +Decide: -33 +Decide: -38 +Decide: -28 +Decide: -30 +Decide: -31 +Decide: -37 +Decide: -35 +Decide: -37 +Decide: -31 +Decide: -35 +Decide: -38 +Decide: -30 +Decide: -26 +Decide: -28 +Decide: -30 +Decide: -33 +Decide: -37 +Decide: -35 +Decide: -37 +Decide: -33 +Decide: -35 +Decide: -40 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -24 +Decide: -26 +Decide: -28 +Decide: -31 +Decide: -33 +Decide: -38 +Decide: -35 +Decide: -38 +Decide: -33 +Decide: -35 +Decide: -40 +Decide: -31 +Decide: -28 +Decide: -31 +Decide: -26 +Decide: -28 +Decide: -33 +Decide: -23 +Decide: -24 +Decide: -30 +Decide: -26 +Decide: -30 +Decide: -24 +Decide: -26 +Decide: -31 +Decide: -21 +Decide: -23 +Decide: -24 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -24 +Decide: -28 +Decide: -31 +Decide: -23 +Decide: -19 +Decide: -21 +Decide: -23 +Decide: -26 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -26 +Decide: -28 +Decide: -33 +Decide: -23 +Decide: -21 +Decide: -23 +Decide: -17 +Decide: -19 +Decide: -21 +Decide: -24 +Decide: -26 +Decide: -31 +Decide: -28 +Decide: -31 +Decide: -26 +Decide: -28 +Decide: -33 +Decide: -24 +Decide: -21 +Decide: -24 +Decide: -19 +Decide: -21 +Decide: -26 +Decide: -15 +Decide: -16 +Decide: -17 +Decide: -22 +Decide: -23 +Decide: -29 +Decide: -24 +Decide: -29 +Decide: -23 +Decide: -24 +Decide: -30 +Decide: -19 +Decide: -22 +Decide: -23 +Decide: -29 +Decide: -26 +Decide: -29 +Decide: -23 +Decide: -26 +Decide: -30 +Decide: -22 +Decide: -17 +Decide: -19 +Decide: -22 +Decide: -24 +Decide: -29 +Decide: -26 +Decide: -29 +Decide: -24 +Decide: -26 +Decide: -31 +Decide: -22 +Decide: -19 +Decide: -22 +Decide: -16 +Decide: -17 +Decide: -19 +Decide: -23 +Decide: -24 +Decide: -30 +Decide: -26 +Decide: -30 +Decide: -24 +Decide: -26 +Decide: -31 +Decide: -23 +Decide: -19 +Decide: -23 +Decide: -17 +Decide: -19 +Decide: -24 +Decide: -13 +Decide: -14 +Decide: -15 +Decide: -16 +Decide: -17 +Decide: -20 +Decide: -22 +Decide: -23 +Decide: -24 +Decide: -29 +Decide: -30 +Decide: -36 +Decide: -31 +Decide: -36 +Decide: -30 +Decide: -31 +Decide: -37 +Decide: -27 +Decide: -29 +Decide: -30 +Decide: -36 +Decide: -34 +Decide: -36 +Decide: -30 +Decide: -34 +Decide: -37 +Decide: -29 +Decide: -24 +Decide: -27 +Decide: -29 +Decide: -31 +Decide: -36 +Decide: -34 +Decide: -36 +Decide: -31 +Decide: -34 +Decide: -38 +Decide: -29 +Decide: -27 +Decide: -29 +Decide: -23 +Decide: -24 +Decide: -27 +Decide: -30 +Decide: -31 +Decide: -37 +Decide: -34 +Decide: -37 +Decide: -31 +Decide: -34 +Decide: -38 +Decide: -30 +Decide: -27 +Decide: -30 +Decide: -24 +Decide: -27 +Decide: -31 +Decide: -21 +Decide: -22 +Decide: -23 +Decide: -24 +Decide: -29 +Decide: -30 +Decide: -36 +Decide: -31 +Decide: -36 +Decide: -30 +Decide: -31 +Decide: -37 +Decide: -28 +Decide: -29 +Decide: -30 +Decide: -36 +Decide: -35 +Decide: -36 +Decide: -30 +Decide: -35 +Decide: -37 +Decide: -29 +Decide: -24 +Decide: -28 +Decide: -29 +Decide: -31 +Decide: -36 +Decide: -35 +Decide: -36 +Decide: -31 +Decide: -35 +Decide: -38 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -23 +Decide: -24 +Decide: -28 +Decide: -30 +Decide: -31 +Decide: -37 +Decide: -35 +Decide: -37 +Decide: -31 +Decide: -35 +Decide: -38 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -24 +Decide: -28 +Decide: -31 +Decide: -22 +Decide: -23 +Decide: -29 +Decide: -24 +Decide: -29 +Decide: -23 +Decide: -24 +Decide: -30 +Decide: -20 +Decide: -21 +Decide: -22 +Decide: -23 +Decide: -27 +Decide: -29 +Decide: -30 +Decide: -36 +Decide: -34 +Decide: -36 +Decide: -30 +Decide: -34 +Decide: -37 +Decide: -28 +Decide: -29 +Decide: -30 +Decide: -36 +Decide: -35 +Decide: -36 +Decide: -30 +Decide: -35 +Decide: -37 +Decide: -29 +Decide: -27 +Decide: -28 +Decide: -29 +Decide: -34 +Decide: -36 +Decide: -35 +Decide: -36 +Decide: -34 +Decide: -35 +Decide: -41 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -23 +Decide: -27 +Decide: -28 +Decide: -30 +Decide: -34 +Decide: -37 +Decide: -35 +Decide: -37 +Decide: -34 +Decide: -35 +Decide: -41 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -22 +Decide: -23 +Decide: -29 +Decide: -27 +Decide: -29 +Decide: -23 +Decide: -27 +Decide: -30 +Decide: -21 +Decide: -22 +Decide: -23 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -23 +Decide: -28 +Decide: -30 +Decide: -22 +Decide: -17 +Decide: -20 +Decide: -21 +Decide: -22 +Decide: -24 +Decide: -27 +Decide: -29 +Decide: -31 +Decide: -36 +Decide: -34 +Decide: -36 +Decide: -31 +Decide: -34 +Decide: -38 +Decide: -28 +Decide: -29 +Decide: -31 +Decide: -36 +Decide: -35 +Decide: -36 +Decide: -31 +Decide: -35 +Decide: -38 +Decide: -29 +Decide: -27 +Decide: -28 +Decide: -29 +Decide: -34 +Decide: -36 +Decide: -35 +Decide: -36 +Decide: -34 +Decide: -35 +Decide: -41 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -24 +Decide: -27 +Decide: -28 +Decide: -31 +Decide: -34 +Decide: -38 +Decide: -35 +Decide: -38 +Decide: -34 +Decide: -35 +Decide: -41 +Decide: -31 +Decide: -28 +Decide: -31 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -22 +Decide: -24 +Decide: -29 +Decide: -27 +Decide: -29 +Decide: -24 +Decide: -27 +Decide: -31 +Decide: -21 +Decide: -22 +Decide: -24 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -24 +Decide: -28 +Decide: -31 +Decide: -22 +Decide: -20 +Decide: -21 +Decide: -22 +Decide: -27 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -22 +Decide: -21 +Decide: -22 +Decide: -16 +Decide: -17 +Decide: -20 +Decide: -21 +Decide: -23 +Decide: -24 +Decide: -27 +Decide: -30 +Decide: -31 +Decide: -37 +Decide: -34 +Decide: -37 +Decide: -31 +Decide: -34 +Decide: -38 +Decide: -28 +Decide: -30 +Decide: -31 +Decide: -37 +Decide: -35 +Decide: -37 +Decide: -31 +Decide: -35 +Decide: -38 +Decide: -30 +Decide: -27 +Decide: -28 +Decide: -30 +Decide: -34 +Decide: -37 +Decide: -35 +Decide: -37 +Decide: -34 +Decide: -35 +Decide: -41 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -24 +Decide: -27 +Decide: -28 +Decide: -31 +Decide: -34 +Decide: -38 +Decide: -35 +Decide: -38 +Decide: -34 +Decide: -35 +Decide: -41 +Decide: -31 +Decide: -28 +Decide: -31 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -23 +Decide: -24 +Decide: -30 +Decide: -27 +Decide: -30 +Decide: -24 +Decide: -27 +Decide: -31 +Decide: -21 +Decide: -23 +Decide: -24 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -24 +Decide: -28 +Decide: -31 +Decide: -23 +Decide: -20 +Decide: -21 +Decide: -23 +Decide: -27 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -23 +Decide: -21 +Decide: -23 +Decide: -17 +Decide: -20 +Decide: -21 +Decide: -24 +Decide: -27 +Decide: -31 +Decide: -28 +Decide: -31 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -24 +Decide: -21 +Decide: -24 +Decide: -20 +Decide: -21 +Decide: -27 +Decide: -15 +Decide: -16 +Decide: -17 +Decide: -22 +Decide: -23 +Decide: -29 +Decide: -24 +Decide: -29 +Decide: -23 +Decide: -24 +Decide: -30 +Decide: -20 +Decide: -22 +Decide: -23 +Decide: -29 +Decide: -27 +Decide: -29 +Decide: -23 +Decide: -27 +Decide: -30 +Decide: -22 +Decide: -17 +Decide: -20 +Decide: -22 +Decide: -24 +Decide: -29 +Decide: -27 +Decide: -29 +Decide: -24 +Decide: -27 +Decide: -31 +Decide: -22 +Decide: -20 +Decide: -22 +Decide: -16 +Decide: -17 +Decide: -20 +Decide: -23 +Decide: -24 +Decide: -30 +Decide: -27 +Decide: -30 +Decide: -24 +Decide: -27 +Decide: -31 +Decide: -23 +Decide: -20 +Decide: -23 +Decide: -17 +Decide: -20 +Decide: -24 +Decide: -14 +Decide: -15 +Decide: -16 +Decide: -17 +Decide: -22 +Decide: -23 +Decide: -29 +Decide: -24 +Decide: -29 +Decide: -23 +Decide: -24 +Decide: -30 +Decide: -21 +Decide: -22 +Decide: -23 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -23 +Decide: -28 +Decide: -30 +Decide: -22 +Decide: -17 +Decide: -21 +Decide: -22 +Decide: -24 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -24 +Decide: -28 +Decide: -31 +Decide: -22 +Decide: -21 +Decide: -22 +Decide: -16 +Decide: -17 +Decide: -21 +Decide: -23 +Decide: -24 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -24 +Decide: -28 +Decide: -31 +Decide: -23 +Decide: -21 +Decide: -23 +Decide: -17 +Decide: -21 +Decide: -24 +Decide: -15 +Decide: -16 +Decide: -22 +Decide: -17 +Decide: -22 +Decide: -16 +Decide: -17 +Decide: -23 +Decide: -12 +Decide: -13 +Decide: -14 +Decide: -15 +Decide: -16 +Decide: -19 +Decide: -20 +Decide: -22 +Decide: -23 +Decide: -26 +Decide: -29 +Decide: -30 +Decide: -36 +Decide: -33 +Decide: -36 +Decide: -30 +Decide: -33 +Decide: -37 +Decide: -27 +Decide: -29 +Decide: -30 +Decide: -36 +Decide: -34 +Decide: -36 +Decide: -30 +Decide: -34 +Decide: -37 +Decide: -29 +Decide: -26 +Decide: -27 +Decide: -29 +Decide: -33 +Decide: -36 +Decide: -34 +Decide: -36 +Decide: -33 +Decide: -34 +Decide: -40 +Decide: -29 +Decide: -27 +Decide: -29 +Decide: -23 +Decide: -26 +Decide: -27 +Decide: -30 +Decide: -33 +Decide: -37 +Decide: -34 +Decide: -37 +Decide: -33 +Decide: -34 +Decide: -40 +Decide: -30 +Decide: -27 +Decide: -30 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -21 +Decide: -22 +Decide: -23 +Decide: -26 +Decide: -29 +Decide: -30 +Decide: -36 +Decide: -33 +Decide: -36 +Decide: -30 +Decide: -33 +Decide: -37 +Decide: -28 +Decide: -29 +Decide: -30 +Decide: -36 +Decide: -35 +Decide: -36 +Decide: -30 +Decide: -35 +Decide: -37 +Decide: -29 +Decide: -26 +Decide: -28 +Decide: -29 +Decide: -33 +Decide: -36 +Decide: -35 +Decide: -36 +Decide: -33 +Decide: -35 +Decide: -40 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -23 +Decide: -26 +Decide: -28 +Decide: -30 +Decide: -33 +Decide: -37 +Decide: -35 +Decide: -37 +Decide: -33 +Decide: -35 +Decide: -40 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -26 +Decide: -28 +Decide: -33 +Decide: -22 +Decide: -23 +Decide: -29 +Decide: -26 +Decide: -29 +Decide: -23 +Decide: -26 +Decide: -30 +Decide: -20 +Decide: -21 +Decide: -22 +Decide: -23 +Decide: -27 +Decide: -29 +Decide: -30 +Decide: -36 +Decide: -34 +Decide: -36 +Decide: -30 +Decide: -34 +Decide: -37 +Decide: -28 +Decide: -29 +Decide: -30 +Decide: -36 +Decide: -35 +Decide: -36 +Decide: -30 +Decide: -35 +Decide: -37 +Decide: -29 +Decide: -27 +Decide: -28 +Decide: -29 +Decide: -34 +Decide: -36 +Decide: -35 +Decide: -36 +Decide: -34 +Decide: -35 +Decide: -41 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -23 +Decide: -27 +Decide: -28 +Decide: -30 +Decide: -34 +Decide: -37 +Decide: -35 +Decide: -37 +Decide: -34 +Decide: -35 +Decide: -41 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -22 +Decide: -23 +Decide: -29 +Decide: -27 +Decide: -29 +Decide: -23 +Decide: -27 +Decide: -30 +Decide: -21 +Decide: -22 +Decide: -23 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -23 +Decide: -28 +Decide: -30 +Decide: -22 +Decide: -19 +Decide: -20 +Decide: -21 +Decide: -22 +Decide: -26 +Decide: -27 +Decide: -29 +Decide: -33 +Decide: -36 +Decide: -34 +Decide: -36 +Decide: -33 +Decide: -34 +Decide: -40 +Decide: -28 +Decide: -29 +Decide: -33 +Decide: -36 +Decide: -35 +Decide: -36 +Decide: -33 +Decide: -35 +Decide: -40 +Decide: -29 +Decide: -27 +Decide: -28 +Decide: -29 +Decide: -34 +Decide: -36 +Decide: -35 +Decide: -36 +Decide: -34 +Decide: -35 +Decide: -41 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -26 +Decide: -27 +Decide: -28 +Decide: -33 +Decide: -34 +Decide: -40 +Decide: -35 +Decide: -40 +Decide: -34 +Decide: -35 +Decide: -41 +Decide: -33 +Decide: -28 +Decide: -33 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -22 +Decide: -26 +Decide: -29 +Decide: -27 +Decide: -29 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -21 +Decide: -22 +Decide: -26 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -26 +Decide: -28 +Decide: -33 +Decide: -22 +Decide: -20 +Decide: -21 +Decide: -22 +Decide: -27 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -22 +Decide: -21 +Decide: -22 +Decide: -16 +Decide: -19 +Decide: -20 +Decide: -21 +Decide: -23 +Decide: -26 +Decide: -27 +Decide: -30 +Decide: -33 +Decide: -37 +Decide: -34 +Decide: -37 +Decide: -33 +Decide: -34 +Decide: -40 +Decide: -28 +Decide: -30 +Decide: -33 +Decide: -37 +Decide: -35 +Decide: -37 +Decide: -33 +Decide: -35 +Decide: -40 +Decide: -30 +Decide: -27 +Decide: -28 +Decide: -30 +Decide: -34 +Decide: -37 +Decide: -35 +Decide: -37 +Decide: -34 +Decide: -35 +Decide: -41 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -26 +Decide: -27 +Decide: -28 +Decide: -33 +Decide: -34 +Decide: -40 +Decide: -35 +Decide: -40 +Decide: -34 +Decide: -35 +Decide: -41 +Decide: -33 +Decide: -28 +Decide: -33 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -23 +Decide: -26 +Decide: -30 +Decide: -27 +Decide: -30 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -21 +Decide: -23 +Decide: -26 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -26 +Decide: -28 +Decide: -33 +Decide: -23 +Decide: -20 +Decide: -21 +Decide: -23 +Decide: -27 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -23 +Decide: -21 +Decide: -23 +Decide: -19 +Decide: -20 +Decide: -21 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -28 +Decide: -33 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -26 +Decide: -21 +Decide: -26 +Decide: -20 +Decide: -21 +Decide: -27 +Decide: -15 +Decide: -16 +Decide: -19 +Decide: -22 +Decide: -23 +Decide: -29 +Decide: -26 +Decide: -29 +Decide: -23 +Decide: -26 +Decide: -30 +Decide: -20 +Decide: -22 +Decide: -23 +Decide: -29 +Decide: -27 +Decide: -29 +Decide: -23 +Decide: -27 +Decide: -30 +Decide: -22 +Decide: -19 +Decide: -20 +Decide: -22 +Decide: -26 +Decide: -29 +Decide: -27 +Decide: -29 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -22 +Decide: -20 +Decide: -22 +Decide: -16 +Decide: -19 +Decide: -20 +Decide: -23 +Decide: -26 +Decide: -30 +Decide: -27 +Decide: -30 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -23 +Decide: -20 +Decide: -23 +Decide: -19 +Decide: -20 +Decide: -26 +Decide: -14 +Decide: -15 +Decide: -16 +Decide: -19 +Decide: -22 +Decide: -23 +Decide: -29 +Decide: -26 +Decide: -29 +Decide: -23 +Decide: -26 +Decide: -30 +Decide: -21 +Decide: -22 +Decide: -23 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -23 +Decide: -28 +Decide: -30 +Decide: -22 +Decide: -19 +Decide: -21 +Decide: -22 +Decide: -26 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -26 +Decide: -28 +Decide: -33 +Decide: -22 +Decide: -21 +Decide: -22 +Decide: -16 +Decide: -19 +Decide: -21 +Decide: -23 +Decide: -26 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -26 +Decide: -28 +Decide: -33 +Decide: -23 +Decide: -21 +Decide: -23 +Decide: -19 +Decide: -21 +Decide: -26 +Decide: -15 +Decide: -16 +Decide: -22 +Decide: -19 +Decide: -22 +Decide: -16 +Decide: -19 +Decide: -23 +Decide: -13 +Decide: -14 +Decide: -15 +Decide: -16 +Decide: -20 +Decide: -22 +Decide: -23 +Decide: -29 +Decide: -27 +Decide: -29 +Decide: -23 +Decide: -27 +Decide: -30 +Decide: -21 +Decide: -22 +Decide: -23 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -23 +Decide: -28 +Decide: -30 +Decide: -22 +Decide: -20 +Decide: -21 +Decide: -22 +Decide: -27 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -22 +Decide: -21 +Decide: -22 +Decide: -16 +Decide: -20 +Decide: -21 +Decide: -23 +Decide: -27 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -23 +Decide: -21 +Decide: -23 +Decide: -20 +Decide: -21 +Decide: -27 +Decide: -15 +Decide: -16 +Decide: -22 +Decide: -20 +Decide: -22 +Decide: -16 +Decide: -20 +Decide: -23 +Decide: -14 +Decide: -15 +Decide: -16 +Decide: -22 +Decide: -21 +Decide: -22 +Decide: -16 +Decide: -21 +Decide: -23 +Decide: -15 +Decide: -10 +Decide: -12 +Decide: -13 +Decide: -14 +Decide: -15 +Decide: -17 +Decide: -19 +Decide: -20 +Decide: -22 +Decide: -24 +Decide: -26 +Decide: -29 +Decide: -31 +Decide: -36 +Decide: -33 +Decide: -36 +Decide: -31 +Decide: -33 +Decide: -38 +Decide: -27 +Decide: -29 +Decide: -31 +Decide: -36 +Decide: -34 +Decide: -36 +Decide: -31 +Decide: -34 +Decide: -38 +Decide: -29 +Decide: -26 +Decide: -27 +Decide: -29 +Decide: -33 +Decide: -36 +Decide: -34 +Decide: -36 +Decide: -33 +Decide: -34 +Decide: -40 +Decide: -29 +Decide: -27 +Decide: -29 +Decide: -24 +Decide: -26 +Decide: -27 +Decide: -31 +Decide: -33 +Decide: -38 +Decide: -34 +Decide: -38 +Decide: -33 +Decide: -34 +Decide: -40 +Decide: -31 +Decide: -27 +Decide: -31 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -21 +Decide: -22 +Decide: -24 +Decide: -26 +Decide: -29 +Decide: -31 +Decide: -36 +Decide: -33 +Decide: -36 +Decide: -31 +Decide: -33 +Decide: -38 +Decide: -28 +Decide: -29 +Decide: -31 +Decide: -36 +Decide: -35 +Decide: -36 +Decide: -31 +Decide: -35 +Decide: -38 +Decide: -29 +Decide: -26 +Decide: -28 +Decide: -29 +Decide: -33 +Decide: -36 +Decide: -35 +Decide: -36 +Decide: -33 +Decide: -35 +Decide: -40 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -24 +Decide: -26 +Decide: -28 +Decide: -31 +Decide: -33 +Decide: -38 +Decide: -35 +Decide: -38 +Decide: -33 +Decide: -35 +Decide: -40 +Decide: -31 +Decide: -28 +Decide: -31 +Decide: -26 +Decide: -28 +Decide: -33 +Decide: -22 +Decide: -24 +Decide: -29 +Decide: -26 +Decide: -29 +Decide: -24 +Decide: -26 +Decide: -31 +Decide: -20 +Decide: -21 +Decide: -22 +Decide: -24 +Decide: -27 +Decide: -29 +Decide: -31 +Decide: -36 +Decide: -34 +Decide: -36 +Decide: -31 +Decide: -34 +Decide: -38 +Decide: -28 +Decide: -29 +Decide: -31 +Decide: -36 +Decide: -35 +Decide: -36 +Decide: -31 +Decide: -35 +Decide: -38 +Decide: -29 +Decide: -27 +Decide: -28 +Decide: -29 +Decide: -34 +Decide: -36 +Decide: -35 +Decide: -36 +Decide: -34 +Decide: -35 +Decide: -41 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -24 +Decide: -27 +Decide: -28 +Decide: -31 +Decide: -34 +Decide: -38 +Decide: -35 +Decide: -38 +Decide: -34 +Decide: -35 +Decide: -41 +Decide: -31 +Decide: -28 +Decide: -31 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -22 +Decide: -24 +Decide: -29 +Decide: -27 +Decide: -29 +Decide: -24 +Decide: -27 +Decide: -31 +Decide: -21 +Decide: -22 +Decide: -24 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -24 +Decide: -28 +Decide: -31 +Decide: -22 +Decide: -19 +Decide: -20 +Decide: -21 +Decide: -22 +Decide: -26 +Decide: -27 +Decide: -29 +Decide: -33 +Decide: -36 +Decide: -34 +Decide: -36 +Decide: -33 +Decide: -34 +Decide: -40 +Decide: -28 +Decide: -29 +Decide: -33 +Decide: -36 +Decide: -35 +Decide: -36 +Decide: -33 +Decide: -35 +Decide: -40 +Decide: -29 +Decide: -27 +Decide: -28 +Decide: -29 +Decide: -34 +Decide: -36 +Decide: -35 +Decide: -36 +Decide: -34 +Decide: -35 +Decide: -41 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -26 +Decide: -27 +Decide: -28 +Decide: -33 +Decide: -34 +Decide: -40 +Decide: -35 +Decide: -40 +Decide: -34 +Decide: -35 +Decide: -41 +Decide: -33 +Decide: -28 +Decide: -33 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -22 +Decide: -26 +Decide: -29 +Decide: -27 +Decide: -29 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -21 +Decide: -22 +Decide: -26 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -26 +Decide: -28 +Decide: -33 +Decide: -22 +Decide: -20 +Decide: -21 +Decide: -22 +Decide: -27 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -22 +Decide: -21 +Decide: -22 +Decide: -17 +Decide: -19 +Decide: -20 +Decide: -21 +Decide: -24 +Decide: -26 +Decide: -27 +Decide: -31 +Decide: -33 +Decide: -38 +Decide: -34 +Decide: -38 +Decide: -33 +Decide: -34 +Decide: -40 +Decide: -28 +Decide: -31 +Decide: -33 +Decide: -38 +Decide: -35 +Decide: -38 +Decide: -33 +Decide: -35 +Decide: -40 +Decide: -31 +Decide: -27 +Decide: -28 +Decide: -31 +Decide: -34 +Decide: -38 +Decide: -35 +Decide: -38 +Decide: -34 +Decide: -35 +Decide: -41 +Decide: -31 +Decide: -28 +Decide: -31 +Decide: -26 +Decide: -27 +Decide: -28 +Decide: -33 +Decide: -34 +Decide: -40 +Decide: -35 +Decide: -40 +Decide: -34 +Decide: -35 +Decide: -41 +Decide: -33 +Decide: -28 +Decide: -33 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -24 +Decide: -26 +Decide: -31 +Decide: -27 +Decide: -31 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -21 +Decide: -24 +Decide: -26 +Decide: -31 +Decide: -28 +Decide: -31 +Decide: -26 +Decide: -28 +Decide: -33 +Decide: -24 +Decide: -20 +Decide: -21 +Decide: -24 +Decide: -27 +Decide: -31 +Decide: -28 +Decide: -31 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -24 +Decide: -21 +Decide: -24 +Decide: -19 +Decide: -20 +Decide: -21 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -28 +Decide: -33 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -26 +Decide: -21 +Decide: -26 +Decide: -20 +Decide: -21 +Decide: -27 +Decide: -15 +Decide: -17 +Decide: -19 +Decide: -22 +Decide: -24 +Decide: -29 +Decide: -26 +Decide: -29 +Decide: -24 +Decide: -26 +Decide: -31 +Decide: -20 +Decide: -22 +Decide: -24 +Decide: -29 +Decide: -27 +Decide: -29 +Decide: -24 +Decide: -27 +Decide: -31 +Decide: -22 +Decide: -19 +Decide: -20 +Decide: -22 +Decide: -26 +Decide: -29 +Decide: -27 +Decide: -29 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -22 +Decide: -20 +Decide: -22 +Decide: -17 +Decide: -19 +Decide: -20 +Decide: -24 +Decide: -26 +Decide: -31 +Decide: -27 +Decide: -31 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -24 +Decide: -20 +Decide: -24 +Decide: -19 +Decide: -20 +Decide: -26 +Decide: -14 +Decide: -15 +Decide: -17 +Decide: -19 +Decide: -22 +Decide: -24 +Decide: -29 +Decide: -26 +Decide: -29 +Decide: -24 +Decide: -26 +Decide: -31 +Decide: -21 +Decide: -22 +Decide: -24 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -24 +Decide: -28 +Decide: -31 +Decide: -22 +Decide: -19 +Decide: -21 +Decide: -22 +Decide: -26 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -26 +Decide: -28 +Decide: -33 +Decide: -22 +Decide: -21 +Decide: -22 +Decide: -17 +Decide: -19 +Decide: -21 +Decide: -24 +Decide: -26 +Decide: -31 +Decide: -28 +Decide: -31 +Decide: -26 +Decide: -28 +Decide: -33 +Decide: -24 +Decide: -21 +Decide: -24 +Decide: -19 +Decide: -21 +Decide: -26 +Decide: -15 +Decide: -17 +Decide: -22 +Decide: -19 +Decide: -22 +Decide: -17 +Decide: -19 +Decide: -24 +Decide: -13 +Decide: -14 +Decide: -15 +Decide: -17 +Decide: -20 +Decide: -22 +Decide: -24 +Decide: -29 +Decide: -27 +Decide: -29 +Decide: -24 +Decide: -27 +Decide: -31 +Decide: -21 +Decide: -22 +Decide: -24 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -24 +Decide: -28 +Decide: -31 +Decide: -22 +Decide: -20 +Decide: -21 +Decide: -22 +Decide: -27 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -22 +Decide: -21 +Decide: -22 +Decide: -17 +Decide: -20 +Decide: -21 +Decide: -24 +Decide: -27 +Decide: -31 +Decide: -28 +Decide: -31 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -24 +Decide: -21 +Decide: -24 +Decide: -20 +Decide: -21 +Decide: -27 +Decide: -15 +Decide: -17 +Decide: -22 +Decide: -20 +Decide: -22 +Decide: -17 +Decide: -20 +Decide: -24 +Decide: -14 +Decide: -15 +Decide: -17 +Decide: -22 +Decide: -21 +Decide: -22 +Decide: -17 +Decide: -21 +Decide: -24 +Decide: -15 +Decide: -12 +Decide: -13 +Decide: -14 +Decide: -15 +Decide: -19 +Decide: -20 +Decide: -22 +Decide: -26 +Decide: -29 +Decide: -27 +Decide: -29 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -21 +Decide: -22 +Decide: -26 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -26 +Decide: -28 +Decide: -33 +Decide: -22 +Decide: -20 +Decide: -21 +Decide: -22 +Decide: -27 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -22 +Decide: -21 +Decide: -22 +Decide: -19 +Decide: -20 +Decide: -21 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -28 +Decide: -33 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -26 +Decide: -21 +Decide: -26 +Decide: -20 +Decide: -21 +Decide: -27 +Decide: -15 +Decide: -19 +Decide: -22 +Decide: -20 +Decide: -22 +Decide: -19 +Decide: -20 +Decide: -26 +Decide: -14 +Decide: -15 +Decide: -19 +Decide: -22 +Decide: -21 +Decide: -22 +Decide: -19 +Decide: -21 +Decide: -26 +Decide: -15 +Decide: -13 +Decide: -14 +Decide: -15 +Decide: -20 +Decide: -22 +Decide: -21 +Decide: -22 +Decide: -20 +Decide: -21 +Decide: -27 +Decide: -15 +Decide: -14 +Decide: -15 +Decide: -9 +Decide: -10 +Decide: -12 +Decide: -13 +Decide: -14 +Decide: -16 +Decide: -17 +Decide: -19 +Decide: -20 +Decide: -23 +Decide: -24 +Decide: -26 +Decide: -30 +Decide: -31 +Decide: -37 +Decide: -33 +Decide: -37 +Decide: -31 +Decide: -33 +Decide: -38 +Decide: -27 +Decide: -30 +Decide: -31 +Decide: -37 +Decide: -34 +Decide: -37 +Decide: -31 +Decide: -34 +Decide: -38 +Decide: -30 +Decide: -26 +Decide: -27 +Decide: -30 +Decide: -33 +Decide: -37 +Decide: -34 +Decide: -37 +Decide: -33 +Decide: -34 +Decide: -40 +Decide: -30 +Decide: -27 +Decide: -30 +Decide: -24 +Decide: -26 +Decide: -27 +Decide: -31 +Decide: -33 +Decide: -38 +Decide: -34 +Decide: -38 +Decide: -33 +Decide: -34 +Decide: -40 +Decide: -31 +Decide: -27 +Decide: -31 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -21 +Decide: -23 +Decide: -24 +Decide: -26 +Decide: -30 +Decide: -31 +Decide: -37 +Decide: -33 +Decide: -37 +Decide: -31 +Decide: -33 +Decide: -38 +Decide: -28 +Decide: -30 +Decide: -31 +Decide: -37 +Decide: -35 +Decide: -37 +Decide: -31 +Decide: -35 +Decide: -38 +Decide: -30 +Decide: -26 +Decide: -28 +Decide: -30 +Decide: -33 +Decide: -37 +Decide: -35 +Decide: -37 +Decide: -33 +Decide: -35 +Decide: -40 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -24 +Decide: -26 +Decide: -28 +Decide: -31 +Decide: -33 +Decide: -38 +Decide: -35 +Decide: -38 +Decide: -33 +Decide: -35 +Decide: -40 +Decide: -31 +Decide: -28 +Decide: -31 +Decide: -26 +Decide: -28 +Decide: -33 +Decide: -23 +Decide: -24 +Decide: -30 +Decide: -26 +Decide: -30 +Decide: -24 +Decide: -26 +Decide: -31 +Decide: -20 +Decide: -21 +Decide: -23 +Decide: -24 +Decide: -27 +Decide: -30 +Decide: -31 +Decide: -37 +Decide: -34 +Decide: -37 +Decide: -31 +Decide: -34 +Decide: -38 +Decide: -28 +Decide: -30 +Decide: -31 +Decide: -37 +Decide: -35 +Decide: -37 +Decide: -31 +Decide: -35 +Decide: -38 +Decide: -30 +Decide: -27 +Decide: -28 +Decide: -30 +Decide: -34 +Decide: -37 +Decide: -35 +Decide: -37 +Decide: -34 +Decide: -35 +Decide: -41 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -24 +Decide: -27 +Decide: -28 +Decide: -31 +Decide: -34 +Decide: -38 +Decide: -35 +Decide: -38 +Decide: -34 +Decide: -35 +Decide: -41 +Decide: -31 +Decide: -28 +Decide: -31 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -23 +Decide: -24 +Decide: -30 +Decide: -27 +Decide: -30 +Decide: -24 +Decide: -27 +Decide: -31 +Decide: -21 +Decide: -23 +Decide: -24 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -24 +Decide: -28 +Decide: -31 +Decide: -23 +Decide: -19 +Decide: -20 +Decide: -21 +Decide: -23 +Decide: -26 +Decide: -27 +Decide: -30 +Decide: -33 +Decide: -37 +Decide: -34 +Decide: -37 +Decide: -33 +Decide: -34 +Decide: -40 +Decide: -28 +Decide: -30 +Decide: -33 +Decide: -37 +Decide: -35 +Decide: -37 +Decide: -33 +Decide: -35 +Decide: -40 +Decide: -30 +Decide: -27 +Decide: -28 +Decide: -30 +Decide: -34 +Decide: -37 +Decide: -35 +Decide: -37 +Decide: -34 +Decide: -35 +Decide: -41 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -26 +Decide: -27 +Decide: -28 +Decide: -33 +Decide: -34 +Decide: -40 +Decide: -35 +Decide: -40 +Decide: -34 +Decide: -35 +Decide: -41 +Decide: -33 +Decide: -28 +Decide: -33 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -23 +Decide: -26 +Decide: -30 +Decide: -27 +Decide: -30 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -21 +Decide: -23 +Decide: -26 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -26 +Decide: -28 +Decide: -33 +Decide: -23 +Decide: -20 +Decide: -21 +Decide: -23 +Decide: -27 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -23 +Decide: -21 +Decide: -23 +Decide: -17 +Decide: -19 +Decide: -20 +Decide: -21 +Decide: -24 +Decide: -26 +Decide: -27 +Decide: -31 +Decide: -33 +Decide: -38 +Decide: -34 +Decide: -38 +Decide: -33 +Decide: -34 +Decide: -40 +Decide: -28 +Decide: -31 +Decide: -33 +Decide: -38 +Decide: -35 +Decide: -38 +Decide: -33 +Decide: -35 +Decide: -40 +Decide: -31 +Decide: -27 +Decide: -28 +Decide: -31 +Decide: -34 +Decide: -38 +Decide: -35 +Decide: -38 +Decide: -34 +Decide: -35 +Decide: -41 +Decide: -31 +Decide: -28 +Decide: -31 +Decide: -26 +Decide: -27 +Decide: -28 +Decide: -33 +Decide: -34 +Decide: -40 +Decide: -35 +Decide: -40 +Decide: -34 +Decide: -35 +Decide: -41 +Decide: -33 +Decide: -28 +Decide: -33 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -24 +Decide: -26 +Decide: -31 +Decide: -27 +Decide: -31 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -21 +Decide: -24 +Decide: -26 +Decide: -31 +Decide: -28 +Decide: -31 +Decide: -26 +Decide: -28 +Decide: -33 +Decide: -24 +Decide: -20 +Decide: -21 +Decide: -24 +Decide: -27 +Decide: -31 +Decide: -28 +Decide: -31 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -24 +Decide: -21 +Decide: -24 +Decide: -19 +Decide: -20 +Decide: -21 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -28 +Decide: -33 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -26 +Decide: -21 +Decide: -26 +Decide: -20 +Decide: -21 +Decide: -27 +Decide: -16 +Decide: -17 +Decide: -19 +Decide: -23 +Decide: -24 +Decide: -30 +Decide: -26 +Decide: -30 +Decide: -24 +Decide: -26 +Decide: -31 +Decide: -20 +Decide: -23 +Decide: -24 +Decide: -30 +Decide: -27 +Decide: -30 +Decide: -24 +Decide: -27 +Decide: -31 +Decide: -23 +Decide: -19 +Decide: -20 +Decide: -23 +Decide: -26 +Decide: -30 +Decide: -27 +Decide: -30 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -23 +Decide: -20 +Decide: -23 +Decide: -17 +Decide: -19 +Decide: -20 +Decide: -24 +Decide: -26 +Decide: -31 +Decide: -27 +Decide: -31 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -24 +Decide: -20 +Decide: -24 +Decide: -19 +Decide: -20 +Decide: -26 +Decide: -14 +Decide: -16 +Decide: -17 +Decide: -19 +Decide: -23 +Decide: -24 +Decide: -30 +Decide: -26 +Decide: -30 +Decide: -24 +Decide: -26 +Decide: -31 +Decide: -21 +Decide: -23 +Decide: -24 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -24 +Decide: -28 +Decide: -31 +Decide: -23 +Decide: -19 +Decide: -21 +Decide: -23 +Decide: -26 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -26 +Decide: -28 +Decide: -33 +Decide: -23 +Decide: -21 +Decide: -23 +Decide: -17 +Decide: -19 +Decide: -21 +Decide: -24 +Decide: -26 +Decide: -31 +Decide: -28 +Decide: -31 +Decide: -26 +Decide: -28 +Decide: -33 +Decide: -24 +Decide: -21 +Decide: -24 +Decide: -19 +Decide: -21 +Decide: -26 +Decide: -16 +Decide: -17 +Decide: -23 +Decide: -19 +Decide: -23 +Decide: -17 +Decide: -19 +Decide: -24 +Decide: -13 +Decide: -14 +Decide: -16 +Decide: -17 +Decide: -20 +Decide: -23 +Decide: -24 +Decide: -30 +Decide: -27 +Decide: -30 +Decide: -24 +Decide: -27 +Decide: -31 +Decide: -21 +Decide: -23 +Decide: -24 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -24 +Decide: -28 +Decide: -31 +Decide: -23 +Decide: -20 +Decide: -21 +Decide: -23 +Decide: -27 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -23 +Decide: -21 +Decide: -23 +Decide: -17 +Decide: -20 +Decide: -21 +Decide: -24 +Decide: -27 +Decide: -31 +Decide: -28 +Decide: -31 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -24 +Decide: -21 +Decide: -24 +Decide: -20 +Decide: -21 +Decide: -27 +Decide: -16 +Decide: -17 +Decide: -23 +Decide: -20 +Decide: -23 +Decide: -17 +Decide: -20 +Decide: -24 +Decide: -14 +Decide: -16 +Decide: -17 +Decide: -23 +Decide: -21 +Decide: -23 +Decide: -17 +Decide: -21 +Decide: -24 +Decide: -16 +Decide: -12 +Decide: -13 +Decide: -14 +Decide: -16 +Decide: -19 +Decide: -20 +Decide: -23 +Decide: -26 +Decide: -30 +Decide: -27 +Decide: -30 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -21 +Decide: -23 +Decide: -26 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -26 +Decide: -28 +Decide: -33 +Decide: -23 +Decide: -20 +Decide: -21 +Decide: -23 +Decide: -27 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -23 +Decide: -21 +Decide: -23 +Decide: -19 +Decide: -20 +Decide: -21 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -28 +Decide: -33 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -26 +Decide: -21 +Decide: -26 +Decide: -20 +Decide: -21 +Decide: -27 +Decide: -16 +Decide: -19 +Decide: -23 +Decide: -20 +Decide: -23 +Decide: -19 +Decide: -20 +Decide: -26 +Decide: -14 +Decide: -16 +Decide: -19 +Decide: -23 +Decide: -21 +Decide: -23 +Decide: -19 +Decide: -21 +Decide: -26 +Decide: -16 +Decide: -13 +Decide: -14 +Decide: -16 +Decide: -20 +Decide: -23 +Decide: -21 +Decide: -23 +Decide: -20 +Decide: -21 +Decide: -27 +Decide: -16 +Decide: -14 +Decide: -16 +Decide: -10 +Decide: -12 +Decide: -13 +Decide: -14 +Decide: -17 +Decide: -19 +Decide: -20 +Decide: -24 +Decide: -26 +Decide: -31 +Decide: -27 +Decide: -31 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -21 +Decide: -24 +Decide: -26 +Decide: -31 +Decide: -28 +Decide: -31 +Decide: -26 +Decide: -28 +Decide: -33 +Decide: -24 +Decide: -20 +Decide: -21 +Decide: -24 +Decide: -27 +Decide: -31 +Decide: -28 +Decide: -31 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -24 +Decide: -21 +Decide: -24 +Decide: -19 +Decide: -20 +Decide: -21 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -28 +Decide: -33 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -26 +Decide: -21 +Decide: -26 +Decide: -20 +Decide: -21 +Decide: -27 +Decide: -17 +Decide: -19 +Decide: -24 +Decide: -20 +Decide: -24 +Decide: -19 +Decide: -20 +Decide: -26 +Decide: -14 +Decide: -17 +Decide: -19 +Decide: -24 +Decide: -21 +Decide: -24 +Decide: -19 +Decide: -21 +Decide: -26 +Decide: -17 +Decide: -13 +Decide: -14 +Decide: -17 +Decide: -20 +Decide: -24 +Decide: -21 +Decide: -24 +Decide: -20 +Decide: -21 +Decide: -27 +Decide: -17 +Decide: -14 +Decide: -17 +Decide: -12 +Decide: -13 +Decide: -14 +Decide: -19 +Decide: -20 +Decide: -26 +Decide: -21 +Decide: -26 +Decide: -20 +Decide: -21 +Decide: -27 +Decide: -19 +Decide: -14 +Decide: -19 +Decide: -13 +Decide: -14 +Decide: -20 +Decide: -8 +Decide: -9 +Decide: -10 +Decide: -12 +Decide: -15 +Decide: -16 +Decide: -17 +Decide: -22 +Decide: -23 +Decide: -29 +Decide: -24 +Decide: -29 +Decide: -23 +Decide: -24 +Decide: -30 +Decide: -19 +Decide: -22 +Decide: -23 +Decide: -29 +Decide: -26 +Decide: -29 +Decide: -23 +Decide: -26 +Decide: -30 +Decide: -22 +Decide: -17 +Decide: -19 +Decide: -22 +Decide: -24 +Decide: -29 +Decide: -26 +Decide: -29 +Decide: -24 +Decide: -26 +Decide: -31 +Decide: -22 +Decide: -19 +Decide: -22 +Decide: -16 +Decide: -17 +Decide: -19 +Decide: -23 +Decide: -24 +Decide: -30 +Decide: -26 +Decide: -30 +Decide: -24 +Decide: -26 +Decide: -31 +Decide: -23 +Decide: -19 +Decide: -23 +Decide: -17 +Decide: -19 +Decide: -24 +Decide: -13 +Decide: -15 +Decide: -16 +Decide: -17 +Decide: -22 +Decide: -23 +Decide: -29 +Decide: -24 +Decide: -29 +Decide: -23 +Decide: -24 +Decide: -30 +Decide: -20 +Decide: -22 +Decide: -23 +Decide: -29 +Decide: -27 +Decide: -29 +Decide: -23 +Decide: -27 +Decide: -30 +Decide: -22 +Decide: -17 +Decide: -20 +Decide: -22 +Decide: -24 +Decide: -29 +Decide: -27 +Decide: -29 +Decide: -24 +Decide: -27 +Decide: -31 +Decide: -22 +Decide: -20 +Decide: -22 +Decide: -16 +Decide: -17 +Decide: -20 +Decide: -23 +Decide: -24 +Decide: -30 +Decide: -27 +Decide: -30 +Decide: -24 +Decide: -27 +Decide: -31 +Decide: -23 +Decide: -20 +Decide: -23 +Decide: -17 +Decide: -20 +Decide: -24 +Decide: -15 +Decide: -16 +Decide: -22 +Decide: -17 +Decide: -22 +Decide: -16 +Decide: -17 +Decide: -23 +Decide: -12 +Decide: -13 +Decide: -15 +Decide: -16 +Decide: -19 +Decide: -22 +Decide: -23 +Decide: -29 +Decide: -26 +Decide: -29 +Decide: -23 +Decide: -26 +Decide: -30 +Decide: -20 +Decide: -22 +Decide: -23 +Decide: -29 +Decide: -27 +Decide: -29 +Decide: -23 +Decide: -27 +Decide: -30 +Decide: -22 +Decide: -19 +Decide: -20 +Decide: -22 +Decide: -26 +Decide: -29 +Decide: -27 +Decide: -29 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -22 +Decide: -20 +Decide: -22 +Decide: -16 +Decide: -19 +Decide: -20 +Decide: -23 +Decide: -26 +Decide: -30 +Decide: -27 +Decide: -30 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -23 +Decide: -20 +Decide: -23 +Decide: -19 +Decide: -20 +Decide: -26 +Decide: -15 +Decide: -16 +Decide: -22 +Decide: -19 +Decide: -22 +Decide: -16 +Decide: -19 +Decide: -23 +Decide: -13 +Decide: -15 +Decide: -16 +Decide: -22 +Decide: -20 +Decide: -22 +Decide: -16 +Decide: -20 +Decide: -23 +Decide: -15 +Decide: -10 +Decide: -12 +Decide: -13 +Decide: -15 +Decide: -17 +Decide: -19 +Decide: -22 +Decide: -24 +Decide: -29 +Decide: -26 +Decide: -29 +Decide: -24 +Decide: -26 +Decide: -31 +Decide: -20 +Decide: -22 +Decide: -24 +Decide: -29 +Decide: -27 +Decide: -29 +Decide: -24 +Decide: -27 +Decide: -31 +Decide: -22 +Decide: -19 +Decide: -20 +Decide: -22 +Decide: -26 +Decide: -29 +Decide: -27 +Decide: -29 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -22 +Decide: -20 +Decide: -22 +Decide: -17 +Decide: -19 +Decide: -20 +Decide: -24 +Decide: -26 +Decide: -31 +Decide: -27 +Decide: -31 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -24 +Decide: -20 +Decide: -24 +Decide: -19 +Decide: -20 +Decide: -26 +Decide: -15 +Decide: -17 +Decide: -22 +Decide: -19 +Decide: -22 +Decide: -17 +Decide: -19 +Decide: -24 +Decide: -13 +Decide: -15 +Decide: -17 +Decide: -22 +Decide: -20 +Decide: -22 +Decide: -17 +Decide: -20 +Decide: -24 +Decide: -15 +Decide: -12 +Decide: -13 +Decide: -15 +Decide: -19 +Decide: -22 +Decide: -20 +Decide: -22 +Decide: -19 +Decide: -20 +Decide: -26 +Decide: -15 +Decide: -13 +Decide: -15 +Decide: -9 +Decide: -10 +Decide: -12 +Decide: -13 +Decide: -16 +Decide: -17 +Decide: -19 +Decide: -23 +Decide: -24 +Decide: -30 +Decide: -26 +Decide: -30 +Decide: -24 +Decide: -26 +Decide: -31 +Decide: -20 +Decide: -23 +Decide: -24 +Decide: -30 +Decide: -27 +Decide: -30 +Decide: -24 +Decide: -27 +Decide: -31 +Decide: -23 +Decide: -19 +Decide: -20 +Decide: -23 +Decide: -26 +Decide: -30 +Decide: -27 +Decide: -30 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -23 +Decide: -20 +Decide: -23 +Decide: -17 +Decide: -19 +Decide: -20 +Decide: -24 +Decide: -26 +Decide: -31 +Decide: -27 +Decide: -31 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -24 +Decide: -20 +Decide: -24 +Decide: -19 +Decide: -20 +Decide: -26 +Decide: -16 +Decide: -17 +Decide: -23 +Decide: -19 +Decide: -23 +Decide: -17 +Decide: -19 +Decide: -24 +Decide: -13 +Decide: -16 +Decide: -17 +Decide: -23 +Decide: -20 +Decide: -23 +Decide: -17 +Decide: -20 +Decide: -24 +Decide: -16 +Decide: -12 +Decide: -13 +Decide: -16 +Decide: -19 +Decide: -23 +Decide: -20 +Decide: -23 +Decide: -19 +Decide: -20 +Decide: -26 +Decide: -16 +Decide: -13 +Decide: -16 +Decide: -10 +Decide: -12 +Decide: -13 +Decide: -17 +Decide: -19 +Decide: -24 +Decide: -20 +Decide: -24 +Decide: -19 +Decide: -20 +Decide: -26 +Decide: -17 +Decide: -13 +Decide: -17 +Decide: -12 +Decide: -13 +Decide: -19 +Decide: -7 +Decide: -8 +Decide: -9 +Decide: -10 +Decide: -12 +Decide: -15 +Decide: -16 +Decide: -17 +Decide: -22 +Decide: -23 +Decide: -29 +Decide: -24 +Decide: -29 +Decide: -23 +Decide: -24 +Decide: -30 +Decide: -19 +Decide: -22 +Decide: -23 +Decide: -29 +Decide: -26 +Decide: -29 +Decide: -23 +Decide: -26 +Decide: -30 +Decide: -22 +Decide: -17 +Decide: -19 +Decide: -22 +Decide: -24 +Decide: -29 +Decide: -26 +Decide: -29 +Decide: -24 +Decide: -26 +Decide: -31 +Decide: -22 +Decide: -19 +Decide: -22 +Decide: -16 +Decide: -17 +Decide: -19 +Decide: -23 +Decide: -24 +Decide: -30 +Decide: -26 +Decide: -30 +Decide: -24 +Decide: -26 +Decide: -31 +Decide: -23 +Decide: -19 +Decide: -23 +Decide: -17 +Decide: -19 +Decide: -24 +Decide: -14 +Decide: -15 +Decide: -16 +Decide: -17 +Decide: -22 +Decide: -23 +Decide: -29 +Decide: -24 +Decide: -29 +Decide: -23 +Decide: -24 +Decide: -30 +Decide: -21 +Decide: -22 +Decide: -23 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -23 +Decide: -28 +Decide: -30 +Decide: -22 +Decide: -17 +Decide: -21 +Decide: -22 +Decide: -24 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -24 +Decide: -28 +Decide: -31 +Decide: -22 +Decide: -21 +Decide: -22 +Decide: -16 +Decide: -17 +Decide: -21 +Decide: -23 +Decide: -24 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -24 +Decide: -28 +Decide: -31 +Decide: -23 +Decide: -21 +Decide: -23 +Decide: -17 +Decide: -21 +Decide: -24 +Decide: -15 +Decide: -16 +Decide: -22 +Decide: -17 +Decide: -22 +Decide: -16 +Decide: -17 +Decide: -23 +Decide: -12 +Decide: -14 +Decide: -15 +Decide: -16 +Decide: -19 +Decide: -22 +Decide: -23 +Decide: -29 +Decide: -26 +Decide: -29 +Decide: -23 +Decide: -26 +Decide: -30 +Decide: -21 +Decide: -22 +Decide: -23 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -23 +Decide: -28 +Decide: -30 +Decide: -22 +Decide: -19 +Decide: -21 +Decide: -22 +Decide: -26 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -26 +Decide: -28 +Decide: -33 +Decide: -22 +Decide: -21 +Decide: -22 +Decide: -16 +Decide: -19 +Decide: -21 +Decide: -23 +Decide: -26 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -26 +Decide: -28 +Decide: -33 +Decide: -23 +Decide: -21 +Decide: -23 +Decide: -19 +Decide: -21 +Decide: -26 +Decide: -15 +Decide: -16 +Decide: -22 +Decide: -19 +Decide: -22 +Decide: -16 +Decide: -19 +Decide: -23 +Decide: -14 +Decide: -15 +Decide: -16 +Decide: -22 +Decide: -21 +Decide: -22 +Decide: -16 +Decide: -21 +Decide: -23 +Decide: -15 +Decide: -10 +Decide: -12 +Decide: -14 +Decide: -15 +Decide: -17 +Decide: -19 +Decide: -22 +Decide: -24 +Decide: -29 +Decide: -26 +Decide: -29 +Decide: -24 +Decide: -26 +Decide: -31 +Decide: -21 +Decide: -22 +Decide: -24 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -24 +Decide: -28 +Decide: -31 +Decide: -22 +Decide: -19 +Decide: -21 +Decide: -22 +Decide: -26 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -26 +Decide: -28 +Decide: -33 +Decide: -22 +Decide: -21 +Decide: -22 +Decide: -17 +Decide: -19 +Decide: -21 +Decide: -24 +Decide: -26 +Decide: -31 +Decide: -28 +Decide: -31 +Decide: -26 +Decide: -28 +Decide: -33 +Decide: -24 +Decide: -21 +Decide: -24 +Decide: -19 +Decide: -21 +Decide: -26 +Decide: -15 +Decide: -17 +Decide: -22 +Decide: -19 +Decide: -22 +Decide: -17 +Decide: -19 +Decide: -24 +Decide: -14 +Decide: -15 +Decide: -17 +Decide: -22 +Decide: -21 +Decide: -22 +Decide: -17 +Decide: -21 +Decide: -24 +Decide: -15 +Decide: -12 +Decide: -14 +Decide: -15 +Decide: -19 +Decide: -22 +Decide: -21 +Decide: -22 +Decide: -19 +Decide: -21 +Decide: -26 +Decide: -15 +Decide: -14 +Decide: -15 +Decide: -9 +Decide: -10 +Decide: -12 +Decide: -14 +Decide: -16 +Decide: -17 +Decide: -19 +Decide: -23 +Decide: -24 +Decide: -30 +Decide: -26 +Decide: -30 +Decide: -24 +Decide: -26 +Decide: -31 +Decide: -21 +Decide: -23 +Decide: -24 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -24 +Decide: -28 +Decide: -31 +Decide: -23 +Decide: -19 +Decide: -21 +Decide: -23 +Decide: -26 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -26 +Decide: -28 +Decide: -33 +Decide: -23 +Decide: -21 +Decide: -23 +Decide: -17 +Decide: -19 +Decide: -21 +Decide: -24 +Decide: -26 +Decide: -31 +Decide: -28 +Decide: -31 +Decide: -26 +Decide: -28 +Decide: -33 +Decide: -24 +Decide: -21 +Decide: -24 +Decide: -19 +Decide: -21 +Decide: -26 +Decide: -16 +Decide: -17 +Decide: -23 +Decide: -19 +Decide: -23 +Decide: -17 +Decide: -19 +Decide: -24 +Decide: -14 +Decide: -16 +Decide: -17 +Decide: -23 +Decide: -21 +Decide: -23 +Decide: -17 +Decide: -21 +Decide: -24 +Decide: -16 +Decide: -12 +Decide: -14 +Decide: -16 +Decide: -19 +Decide: -23 +Decide: -21 +Decide: -23 +Decide: -19 +Decide: -21 +Decide: -26 +Decide: -16 +Decide: -14 +Decide: -16 +Decide: -10 +Decide: -12 +Decide: -14 +Decide: -17 +Decide: -19 +Decide: -24 +Decide: -21 +Decide: -24 +Decide: -19 +Decide: -21 +Decide: -26 +Decide: -17 +Decide: -14 +Decide: -17 +Decide: -12 +Decide: -14 +Decide: -19 +Decide: -8 +Decide: -9 +Decide: -10 +Decide: -15 +Decide: -16 +Decide: -22 +Decide: -17 +Decide: -22 +Decide: -16 +Decide: -17 +Decide: -23 +Decide: -12 +Decide: -15 +Decide: -16 +Decide: -22 +Decide: -19 +Decide: -22 +Decide: -16 +Decide: -19 +Decide: -23 +Decide: -15 +Decide: -10 +Decide: -12 +Decide: -15 +Decide: -17 +Decide: -22 +Decide: -19 +Decide: -22 +Decide: -17 +Decide: -19 +Decide: -24 +Decide: -15 +Decide: -12 +Decide: -15 +Decide: -9 +Decide: -10 +Decide: -12 +Decide: -16 +Decide: -17 +Decide: -23 +Decide: -19 +Decide: -23 +Decide: -17 +Decide: -19 +Decide: -24 +Decide: -16 +Decide: -12 +Decide: -16 +Decide: -10 +Decide: -12 +Decide: -17 +Decide: -6 +Decide: -7 +Decide: -8 +Decide: -9 +Decide: -10 +Decide: -13 +Decide: -15 +Decide: -16 +Decide: -17 +Decide: -22 +Decide: -23 +Decide: -29 +Decide: -24 +Decide: -29 +Decide: -23 +Decide: -24 +Decide: -30 +Decide: -20 +Decide: -22 +Decide: -23 +Decide: -29 +Decide: -27 +Decide: -29 +Decide: -23 +Decide: -27 +Decide: -30 +Decide: -22 +Decide: -17 +Decide: -20 +Decide: -22 +Decide: -24 +Decide: -29 +Decide: -27 +Decide: -29 +Decide: -24 +Decide: -27 +Decide: -31 +Decide: -22 +Decide: -20 +Decide: -22 +Decide: -16 +Decide: -17 +Decide: -20 +Decide: -23 +Decide: -24 +Decide: -30 +Decide: -27 +Decide: -30 +Decide: -24 +Decide: -27 +Decide: -31 +Decide: -23 +Decide: -20 +Decide: -23 +Decide: -17 +Decide: -20 +Decide: -24 +Decide: -14 +Decide: -15 +Decide: -16 +Decide: -17 +Decide: -22 +Decide: -23 +Decide: -29 +Decide: -24 +Decide: -29 +Decide: -23 +Decide: -24 +Decide: -30 +Decide: -21 +Decide: -22 +Decide: -23 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -23 +Decide: -28 +Decide: -30 +Decide: -22 +Decide: -17 +Decide: -21 +Decide: -22 +Decide: -24 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -24 +Decide: -28 +Decide: -31 +Decide: -22 +Decide: -21 +Decide: -22 +Decide: -16 +Decide: -17 +Decide: -21 +Decide: -23 +Decide: -24 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -24 +Decide: -28 +Decide: -31 +Decide: -23 +Decide: -21 +Decide: -23 +Decide: -17 +Decide: -21 +Decide: -24 +Decide: -15 +Decide: -16 +Decide: -22 +Decide: -17 +Decide: -22 +Decide: -16 +Decide: -17 +Decide: -23 +Decide: -13 +Decide: -14 +Decide: -15 +Decide: -16 +Decide: -20 +Decide: -22 +Decide: -23 +Decide: -29 +Decide: -27 +Decide: -29 +Decide: -23 +Decide: -27 +Decide: -30 +Decide: -21 +Decide: -22 +Decide: -23 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -23 +Decide: -28 +Decide: -30 +Decide: -22 +Decide: -20 +Decide: -21 +Decide: -22 +Decide: -27 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -22 +Decide: -21 +Decide: -22 +Decide: -16 +Decide: -20 +Decide: -21 +Decide: -23 +Decide: -27 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -23 +Decide: -21 +Decide: -23 +Decide: -20 +Decide: -21 +Decide: -27 +Decide: -15 +Decide: -16 +Decide: -22 +Decide: -20 +Decide: -22 +Decide: -16 +Decide: -20 +Decide: -23 +Decide: -14 +Decide: -15 +Decide: -16 +Decide: -22 +Decide: -21 +Decide: -22 +Decide: -16 +Decide: -21 +Decide: -23 +Decide: -15 +Decide: -10 +Decide: -13 +Decide: -14 +Decide: -15 +Decide: -17 +Decide: -20 +Decide: -22 +Decide: -24 +Decide: -29 +Decide: -27 +Decide: -29 +Decide: -24 +Decide: -27 +Decide: -31 +Decide: -21 +Decide: -22 +Decide: -24 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -24 +Decide: -28 +Decide: -31 +Decide: -22 +Decide: -20 +Decide: -21 +Decide: -22 +Decide: -27 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -22 +Decide: -21 +Decide: -22 +Decide: -17 +Decide: -20 +Decide: -21 +Decide: -24 +Decide: -27 +Decide: -31 +Decide: -28 +Decide: -31 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -24 +Decide: -21 +Decide: -24 +Decide: -20 +Decide: -21 +Decide: -27 +Decide: -15 +Decide: -17 +Decide: -22 +Decide: -20 +Decide: -22 +Decide: -17 +Decide: -20 +Decide: -24 +Decide: -14 +Decide: -15 +Decide: -17 +Decide: -22 +Decide: -21 +Decide: -22 +Decide: -17 +Decide: -21 +Decide: -24 +Decide: -15 +Decide: -13 +Decide: -14 +Decide: -15 +Decide: -20 +Decide: -22 +Decide: -21 +Decide: -22 +Decide: -20 +Decide: -21 +Decide: -27 +Decide: -15 +Decide: -14 +Decide: -15 +Decide: -9 +Decide: -10 +Decide: -13 +Decide: -14 +Decide: -16 +Decide: -17 +Decide: -20 +Decide: -23 +Decide: -24 +Decide: -30 +Decide: -27 +Decide: -30 +Decide: -24 +Decide: -27 +Decide: -31 +Decide: -21 +Decide: -23 +Decide: -24 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -24 +Decide: -28 +Decide: -31 +Decide: -23 +Decide: -20 +Decide: -21 +Decide: -23 +Decide: -27 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -23 +Decide: -21 +Decide: -23 +Decide: -17 +Decide: -20 +Decide: -21 +Decide: -24 +Decide: -27 +Decide: -31 +Decide: -28 +Decide: -31 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -24 +Decide: -21 +Decide: -24 +Decide: -20 +Decide: -21 +Decide: -27 +Decide: -16 +Decide: -17 +Decide: -23 +Decide: -20 +Decide: -23 +Decide: -17 +Decide: -20 +Decide: -24 +Decide: -14 +Decide: -16 +Decide: -17 +Decide: -23 +Decide: -21 +Decide: -23 +Decide: -17 +Decide: -21 +Decide: -24 +Decide: -16 +Decide: -13 +Decide: -14 +Decide: -16 +Decide: -20 +Decide: -23 +Decide: -21 +Decide: -23 +Decide: -20 +Decide: -21 +Decide: -27 +Decide: -16 +Decide: -14 +Decide: -16 +Decide: -10 +Decide: -13 +Decide: -14 +Decide: -17 +Decide: -20 +Decide: -24 +Decide: -21 +Decide: -24 +Decide: -20 +Decide: -21 +Decide: -27 +Decide: -17 +Decide: -14 +Decide: -17 +Decide: -13 +Decide: -14 +Decide: -20 +Decide: -8 +Decide: -9 +Decide: -10 +Decide: -15 +Decide: -16 +Decide: -22 +Decide: -17 +Decide: -22 +Decide: -16 +Decide: -17 +Decide: -23 +Decide: -13 +Decide: -15 +Decide: -16 +Decide: -22 +Decide: -20 +Decide: -22 +Decide: -16 +Decide: -20 +Decide: -23 +Decide: -15 +Decide: -10 +Decide: -13 +Decide: -15 +Decide: -17 +Decide: -22 +Decide: -20 +Decide: -22 +Decide: -17 +Decide: -20 +Decide: -24 +Decide: -15 +Decide: -13 +Decide: -15 +Decide: -9 +Decide: -10 +Decide: -13 +Decide: -16 +Decide: -17 +Decide: -23 +Decide: -20 +Decide: -23 +Decide: -17 +Decide: -20 +Decide: -24 +Decide: -16 +Decide: -13 +Decide: -16 +Decide: -10 +Decide: -13 +Decide: -17 +Decide: -7 +Decide: -8 +Decide: -9 +Decide: -10 +Decide: -15 +Decide: -16 +Decide: -22 +Decide: -17 +Decide: -22 +Decide: -16 +Decide: -17 +Decide: -23 +Decide: -14 +Decide: -15 +Decide: -16 +Decide: -22 +Decide: -21 +Decide: -22 +Decide: -16 +Decide: -21 +Decide: -23 +Decide: -15 +Decide: -10 +Decide: -14 +Decide: -15 +Decide: -17 +Decide: -22 +Decide: -21 +Decide: -22 +Decide: -17 +Decide: -21 +Decide: -24 +Decide: -15 +Decide: -14 +Decide: -15 +Decide: -9 +Decide: -10 +Decide: -14 +Decide: -16 +Decide: -17 +Decide: -23 +Decide: -21 +Decide: -23 +Decide: -17 +Decide: -21 +Decide: -24 +Decide: -16 +Decide: -14 +Decide: -16 +Decide: -10 +Decide: -14 +Decide: -17 +Decide: -8 +Decide: -9 +Decide: -15 +Decide: -10 +Decide: -15 +Decide: -9 +Decide: -10 +Decide: -16 +Decide: -4 +Decide: -5 +Decide: -6 +Decide: -7 +Decide: -8 +Decide: -9 +Decide: -11 +Decide: -12 +Decide: -13 +Decide: -15 +Decide: -16 +Decide: -18 +Decide: -19 +Decide: -22 +Decide: -23 +Decide: -25 +Decide: -29 +Decide: -30 +Decide: -36 +Decide: -32 +Decide: -36 +Decide: -30 +Decide: -32 +Decide: -37 +Decide: -26 +Decide: -29 +Decide: -30 +Decide: -36 +Decide: -33 +Decide: -36 +Decide: -30 +Decide: -33 +Decide: -37 +Decide: -29 +Decide: -25 +Decide: -26 +Decide: -29 +Decide: -32 +Decide: -36 +Decide: -33 +Decide: -36 +Decide: -32 +Decide: -33 +Decide: -39 +Decide: -29 +Decide: -26 +Decide: -29 +Decide: -23 +Decide: -25 +Decide: -26 +Decide: -30 +Decide: -32 +Decide: -37 +Decide: -33 +Decide: -37 +Decide: -32 +Decide: -33 +Decide: -39 +Decide: -30 +Decide: -26 +Decide: -30 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -20 +Decide: -22 +Decide: -23 +Decide: -25 +Decide: -29 +Decide: -30 +Decide: -36 +Decide: -32 +Decide: -36 +Decide: -30 +Decide: -32 +Decide: -37 +Decide: -27 +Decide: -29 +Decide: -30 +Decide: -36 +Decide: -34 +Decide: -36 +Decide: -30 +Decide: -34 +Decide: -37 +Decide: -29 +Decide: -25 +Decide: -27 +Decide: -29 +Decide: -32 +Decide: -36 +Decide: -34 +Decide: -36 +Decide: -32 +Decide: -34 +Decide: -39 +Decide: -29 +Decide: -27 +Decide: -29 +Decide: -23 +Decide: -25 +Decide: -27 +Decide: -30 +Decide: -32 +Decide: -37 +Decide: -34 +Decide: -37 +Decide: -32 +Decide: -34 +Decide: -39 +Decide: -30 +Decide: -27 +Decide: -30 +Decide: -25 +Decide: -27 +Decide: -32 +Decide: -22 +Decide: -23 +Decide: -29 +Decide: -25 +Decide: -29 +Decide: -23 +Decide: -25 +Decide: -30 +Decide: -19 +Decide: -20 +Decide: -22 +Decide: -23 +Decide: -26 +Decide: -29 +Decide: -30 +Decide: -36 +Decide: -33 +Decide: -36 +Decide: -30 +Decide: -33 +Decide: -37 +Decide: -27 +Decide: -29 +Decide: -30 +Decide: -36 +Decide: -34 +Decide: -36 +Decide: -30 +Decide: -34 +Decide: -37 +Decide: -29 +Decide: -26 +Decide: -27 +Decide: -29 +Decide: -33 +Decide: -36 +Decide: -34 +Decide: -36 +Decide: -33 +Decide: -34 +Decide: -40 +Decide: -29 +Decide: -27 +Decide: -29 +Decide: -23 +Decide: -26 +Decide: -27 +Decide: -30 +Decide: -33 +Decide: -37 +Decide: -34 +Decide: -37 +Decide: -33 +Decide: -34 +Decide: -40 +Decide: -30 +Decide: -27 +Decide: -30 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -22 +Decide: -23 +Decide: -29 +Decide: -26 +Decide: -29 +Decide: -23 +Decide: -26 +Decide: -30 +Decide: -20 +Decide: -22 +Decide: -23 +Decide: -29 +Decide: -27 +Decide: -29 +Decide: -23 +Decide: -27 +Decide: -30 +Decide: -22 +Decide: -18 +Decide: -19 +Decide: -20 +Decide: -22 +Decide: -25 +Decide: -26 +Decide: -29 +Decide: -32 +Decide: -36 +Decide: -33 +Decide: -36 +Decide: -32 +Decide: -33 +Decide: -39 +Decide: -27 +Decide: -29 +Decide: -32 +Decide: -36 +Decide: -34 +Decide: -36 +Decide: -32 +Decide: -34 +Decide: -39 +Decide: -29 +Decide: -26 +Decide: -27 +Decide: -29 +Decide: -33 +Decide: -36 +Decide: -34 +Decide: -36 +Decide: -33 +Decide: -34 +Decide: -40 +Decide: -29 +Decide: -27 +Decide: -29 +Decide: -25 +Decide: -26 +Decide: -27 +Decide: -32 +Decide: -33 +Decide: -39 +Decide: -34 +Decide: -39 +Decide: -33 +Decide: -34 +Decide: -40 +Decide: -32 +Decide: -27 +Decide: -32 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -22 +Decide: -25 +Decide: -29 +Decide: -26 +Decide: -29 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -20 +Decide: -22 +Decide: -25 +Decide: -29 +Decide: -27 +Decide: -29 +Decide: -25 +Decide: -27 +Decide: -32 +Decide: -22 +Decide: -19 +Decide: -20 +Decide: -22 +Decide: -26 +Decide: -29 +Decide: -27 +Decide: -29 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -22 +Decide: -20 +Decide: -22 +Decide: -16 +Decide: -18 +Decide: -19 +Decide: -20 +Decide: -23 +Decide: -25 +Decide: -26 +Decide: -30 +Decide: -32 +Decide: -37 +Decide: -33 +Decide: -37 +Decide: -32 +Decide: -33 +Decide: -39 +Decide: -27 +Decide: -30 +Decide: -32 +Decide: -37 +Decide: -34 +Decide: -37 +Decide: -32 +Decide: -34 +Decide: -39 +Decide: -30 +Decide: -26 +Decide: -27 +Decide: -30 +Decide: -33 +Decide: -37 +Decide: -34 +Decide: -37 +Decide: -33 +Decide: -34 +Decide: -40 +Decide: -30 +Decide: -27 +Decide: -30 +Decide: -25 +Decide: -26 +Decide: -27 +Decide: -32 +Decide: -33 +Decide: -39 +Decide: -34 +Decide: -39 +Decide: -33 +Decide: -34 +Decide: -40 +Decide: -32 +Decide: -27 +Decide: -32 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -23 +Decide: -25 +Decide: -30 +Decide: -26 +Decide: -30 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -20 +Decide: -23 +Decide: -25 +Decide: -30 +Decide: -27 +Decide: -30 +Decide: -25 +Decide: -27 +Decide: -32 +Decide: -23 +Decide: -19 +Decide: -20 +Decide: -23 +Decide: -26 +Decide: -30 +Decide: -27 +Decide: -30 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -23 +Decide: -20 +Decide: -23 +Decide: -18 +Decide: -19 +Decide: -20 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -27 +Decide: -32 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -25 +Decide: -20 +Decide: -25 +Decide: -19 +Decide: -20 +Decide: -26 +Decide: -14 +Decide: -15 +Decide: -16 +Decide: -18 +Decide: -19 +Decide: -22 +Decide: -23 +Decide: -25 +Decide: -29 +Decide: -30 +Decide: -36 +Decide: -32 +Decide: -36 +Decide: -30 +Decide: -32 +Decide: -37 +Decide: -26 +Decide: -29 +Decide: -30 +Decide: -36 +Decide: -33 +Decide: -36 +Decide: -30 +Decide: -33 +Decide: -37 +Decide: -29 +Decide: -25 +Decide: -26 +Decide: -29 +Decide: -32 +Decide: -36 +Decide: -33 +Decide: -36 +Decide: -32 +Decide: -33 +Decide: -39 +Decide: -29 +Decide: -26 +Decide: -29 +Decide: -23 +Decide: -25 +Decide: -26 +Decide: -30 +Decide: -32 +Decide: -37 +Decide: -33 +Decide: -37 +Decide: -32 +Decide: -33 +Decide: -39 +Decide: -30 +Decide: -26 +Decide: -30 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -21 +Decide: -22 +Decide: -23 +Decide: -25 +Decide: -29 +Decide: -30 +Decide: -36 +Decide: -32 +Decide: -36 +Decide: -30 +Decide: -32 +Decide: -37 +Decide: -28 +Decide: -29 +Decide: -30 +Decide: -36 +Decide: -35 +Decide: -36 +Decide: -30 +Decide: -35 +Decide: -37 +Decide: -29 +Decide: -25 +Decide: -28 +Decide: -29 +Decide: -32 +Decide: -36 +Decide: -35 +Decide: -36 +Decide: -32 +Decide: -35 +Decide: -39 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -23 +Decide: -25 +Decide: -28 +Decide: -30 +Decide: -32 +Decide: -37 +Decide: -35 +Decide: -37 +Decide: -32 +Decide: -35 +Decide: -39 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -25 +Decide: -28 +Decide: -32 +Decide: -22 +Decide: -23 +Decide: -29 +Decide: -25 +Decide: -29 +Decide: -23 +Decide: -25 +Decide: -30 +Decide: -19 +Decide: -21 +Decide: -22 +Decide: -23 +Decide: -26 +Decide: -29 +Decide: -30 +Decide: -36 +Decide: -33 +Decide: -36 +Decide: -30 +Decide: -33 +Decide: -37 +Decide: -28 +Decide: -29 +Decide: -30 +Decide: -36 +Decide: -35 +Decide: -36 +Decide: -30 +Decide: -35 +Decide: -37 +Decide: -29 +Decide: -26 +Decide: -28 +Decide: -29 +Decide: -33 +Decide: -36 +Decide: -35 +Decide: -36 +Decide: -33 +Decide: -35 +Decide: -40 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -23 +Decide: -26 +Decide: -28 +Decide: -30 +Decide: -33 +Decide: -37 +Decide: -35 +Decide: -37 +Decide: -33 +Decide: -35 +Decide: -40 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -26 +Decide: -28 +Decide: -33 +Decide: -22 +Decide: -23 +Decide: -29 +Decide: -26 +Decide: -29 +Decide: -23 +Decide: -26 +Decide: -30 +Decide: -21 +Decide: -22 +Decide: -23 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -23 +Decide: -28 +Decide: -30 +Decide: -22 +Decide: -18 +Decide: -19 +Decide: -21 +Decide: -22 +Decide: -25 +Decide: -26 +Decide: -29 +Decide: -32 +Decide: -36 +Decide: -33 +Decide: -36 +Decide: -32 +Decide: -33 +Decide: -39 +Decide: -28 +Decide: -29 +Decide: -32 +Decide: -36 +Decide: -35 +Decide: -36 +Decide: -32 +Decide: -35 +Decide: -39 +Decide: -29 +Decide: -26 +Decide: -28 +Decide: -29 +Decide: -33 +Decide: -36 +Decide: -35 +Decide: -36 +Decide: -33 +Decide: -35 +Decide: -40 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -25 +Decide: -26 +Decide: -28 +Decide: -32 +Decide: -33 +Decide: -39 +Decide: -35 +Decide: -39 +Decide: -33 +Decide: -35 +Decide: -40 +Decide: -32 +Decide: -28 +Decide: -32 +Decide: -26 +Decide: -28 +Decide: -33 +Decide: -22 +Decide: -25 +Decide: -29 +Decide: -26 +Decide: -29 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -21 +Decide: -22 +Decide: -25 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -25 +Decide: -28 +Decide: -32 +Decide: -22 +Decide: -19 +Decide: -21 +Decide: -22 +Decide: -26 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -26 +Decide: -28 +Decide: -33 +Decide: -22 +Decide: -21 +Decide: -22 +Decide: -16 +Decide: -18 +Decide: -19 +Decide: -21 +Decide: -23 +Decide: -25 +Decide: -26 +Decide: -30 +Decide: -32 +Decide: -37 +Decide: -33 +Decide: -37 +Decide: -32 +Decide: -33 +Decide: -39 +Decide: -28 +Decide: -30 +Decide: -32 +Decide: -37 +Decide: -35 +Decide: -37 +Decide: -32 +Decide: -35 +Decide: -39 +Decide: -30 +Decide: -26 +Decide: -28 +Decide: -30 +Decide: -33 +Decide: -37 +Decide: -35 +Decide: -37 +Decide: -33 +Decide: -35 +Decide: -40 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -25 +Decide: -26 +Decide: -28 +Decide: -32 +Decide: -33 +Decide: -39 +Decide: -35 +Decide: -39 +Decide: -33 +Decide: -35 +Decide: -40 +Decide: -32 +Decide: -28 +Decide: -32 +Decide: -26 +Decide: -28 +Decide: -33 +Decide: -23 +Decide: -25 +Decide: -30 +Decide: -26 +Decide: -30 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -21 +Decide: -23 +Decide: -25 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -25 +Decide: -28 +Decide: -32 +Decide: -23 +Decide: -19 +Decide: -21 +Decide: -23 +Decide: -26 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -26 +Decide: -28 +Decide: -33 +Decide: -23 +Decide: -21 +Decide: -23 +Decide: -18 +Decide: -19 +Decide: -21 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -28 +Decide: -32 +Decide: -26 +Decide: -28 +Decide: -33 +Decide: -25 +Decide: -21 +Decide: -25 +Decide: -19 +Decide: -21 +Decide: -26 +Decide: -15 +Decide: -16 +Decide: -18 +Decide: -22 +Decide: -23 +Decide: -29 +Decide: -25 +Decide: -29 +Decide: -23 +Decide: -25 +Decide: -30 +Decide: -19 +Decide: -22 +Decide: -23 +Decide: -29 +Decide: -26 +Decide: -29 +Decide: -23 +Decide: -26 +Decide: -30 +Decide: -22 +Decide: -18 +Decide: -19 +Decide: -22 +Decide: -25 +Decide: -29 +Decide: -26 +Decide: -29 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -22 +Decide: -19 +Decide: -22 +Decide: -16 +Decide: -18 +Decide: -19 +Decide: -23 +Decide: -25 +Decide: -30 +Decide: -26 +Decide: -30 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -23 +Decide: -19 +Decide: -23 +Decide: -18 +Decide: -19 +Decide: -25 +Decide: -13 +Decide: -14 +Decide: -15 +Decide: -16 +Decide: -18 +Decide: -20 +Decide: -22 +Decide: -23 +Decide: -25 +Decide: -29 +Decide: -30 +Decide: -36 +Decide: -32 +Decide: -36 +Decide: -30 +Decide: -32 +Decide: -37 +Decide: -27 +Decide: -29 +Decide: -30 +Decide: -36 +Decide: -34 +Decide: -36 +Decide: -30 +Decide: -34 +Decide: -37 +Decide: -29 +Decide: -25 +Decide: -27 +Decide: -29 +Decide: -32 +Decide: -36 +Decide: -34 +Decide: -36 +Decide: -32 +Decide: -34 +Decide: -39 +Decide: -29 +Decide: -27 +Decide: -29 +Decide: -23 +Decide: -25 +Decide: -27 +Decide: -30 +Decide: -32 +Decide: -37 +Decide: -34 +Decide: -37 +Decide: -32 +Decide: -34 +Decide: -39 +Decide: -30 +Decide: -27 +Decide: -30 +Decide: -25 +Decide: -27 +Decide: -32 +Decide: -21 +Decide: -22 +Decide: -23 +Decide: -25 +Decide: -29 +Decide: -30 +Decide: -36 +Decide: -32 +Decide: -36 +Decide: -30 +Decide: -32 +Decide: -37 +Decide: -28 +Decide: -29 +Decide: -30 +Decide: -36 +Decide: -35 +Decide: -36 +Decide: -30 +Decide: -35 +Decide: -37 +Decide: -29 +Decide: -25 +Decide: -28 +Decide: -29 +Decide: -32 +Decide: -36 +Decide: -35 +Decide: -36 +Decide: -32 +Decide: -35 +Decide: -39 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -23 +Decide: -25 +Decide: -28 +Decide: -30 +Decide: -32 +Decide: -37 +Decide: -35 +Decide: -37 +Decide: -32 +Decide: -35 +Decide: -39 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -25 +Decide: -28 +Decide: -32 +Decide: -22 +Decide: -23 +Decide: -29 +Decide: -25 +Decide: -29 +Decide: -23 +Decide: -25 +Decide: -30 +Decide: -20 +Decide: -21 +Decide: -22 +Decide: -23 +Decide: -27 +Decide: -29 +Decide: -30 +Decide: -36 +Decide: -34 +Decide: -36 +Decide: -30 +Decide: -34 +Decide: -37 +Decide: -28 +Decide: -29 +Decide: -30 +Decide: -36 +Decide: -35 +Decide: -36 +Decide: -30 +Decide: -35 +Decide: -37 +Decide: -29 +Decide: -27 +Decide: -28 +Decide: -29 +Decide: -34 +Decide: -36 +Decide: -35 +Decide: -36 +Decide: -34 +Decide: -35 +Decide: -41 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -23 +Decide: -27 +Decide: -28 +Decide: -30 +Decide: -34 +Decide: -37 +Decide: -35 +Decide: -37 +Decide: -34 +Decide: -35 +Decide: -41 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -22 +Decide: -23 +Decide: -29 +Decide: -27 +Decide: -29 +Decide: -23 +Decide: -27 +Decide: -30 +Decide: -21 +Decide: -22 +Decide: -23 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -23 +Decide: -28 +Decide: -30 +Decide: -22 +Decide: -18 +Decide: -20 +Decide: -21 +Decide: -22 +Decide: -25 +Decide: -27 +Decide: -29 +Decide: -32 +Decide: -36 +Decide: -34 +Decide: -36 +Decide: -32 +Decide: -34 +Decide: -39 +Decide: -28 +Decide: -29 +Decide: -32 +Decide: -36 +Decide: -35 +Decide: -36 +Decide: -32 +Decide: -35 +Decide: -39 +Decide: -29 +Decide: -27 +Decide: -28 +Decide: -29 +Decide: -34 +Decide: -36 +Decide: -35 +Decide: -36 +Decide: -34 +Decide: -35 +Decide: -41 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -25 +Decide: -27 +Decide: -28 +Decide: -32 +Decide: -34 +Decide: -39 +Decide: -35 +Decide: -39 +Decide: -34 +Decide: -35 +Decide: -41 +Decide: -32 +Decide: -28 +Decide: -32 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -22 +Decide: -25 +Decide: -29 +Decide: -27 +Decide: -29 +Decide: -25 +Decide: -27 +Decide: -32 +Decide: -21 +Decide: -22 +Decide: -25 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -25 +Decide: -28 +Decide: -32 +Decide: -22 +Decide: -20 +Decide: -21 +Decide: -22 +Decide: -27 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -22 +Decide: -21 +Decide: -22 +Decide: -16 +Decide: -18 +Decide: -20 +Decide: -21 +Decide: -23 +Decide: -25 +Decide: -27 +Decide: -30 +Decide: -32 +Decide: -37 +Decide: -34 +Decide: -37 +Decide: -32 +Decide: -34 +Decide: -39 +Decide: -28 +Decide: -30 +Decide: -32 +Decide: -37 +Decide: -35 +Decide: -37 +Decide: -32 +Decide: -35 +Decide: -39 +Decide: -30 +Decide: -27 +Decide: -28 +Decide: -30 +Decide: -34 +Decide: -37 +Decide: -35 +Decide: -37 +Decide: -34 +Decide: -35 +Decide: -41 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -25 +Decide: -27 +Decide: -28 +Decide: -32 +Decide: -34 +Decide: -39 +Decide: -35 +Decide: -39 +Decide: -34 +Decide: -35 +Decide: -41 +Decide: -32 +Decide: -28 +Decide: -32 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -23 +Decide: -25 +Decide: -30 +Decide: -27 +Decide: -30 +Decide: -25 +Decide: -27 +Decide: -32 +Decide: -21 +Decide: -23 +Decide: -25 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -25 +Decide: -28 +Decide: -32 +Decide: -23 +Decide: -20 +Decide: -21 +Decide: -23 +Decide: -27 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -23 +Decide: -21 +Decide: -23 +Decide: -18 +Decide: -20 +Decide: -21 +Decide: -25 +Decide: -27 +Decide: -32 +Decide: -28 +Decide: -32 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -25 +Decide: -21 +Decide: -25 +Decide: -20 +Decide: -21 +Decide: -27 +Decide: -15 +Decide: -16 +Decide: -18 +Decide: -22 +Decide: -23 +Decide: -29 +Decide: -25 +Decide: -29 +Decide: -23 +Decide: -25 +Decide: -30 +Decide: -20 +Decide: -22 +Decide: -23 +Decide: -29 +Decide: -27 +Decide: -29 +Decide: -23 +Decide: -27 +Decide: -30 +Decide: -22 +Decide: -18 +Decide: -20 +Decide: -22 +Decide: -25 +Decide: -29 +Decide: -27 +Decide: -29 +Decide: -25 +Decide: -27 +Decide: -32 +Decide: -22 +Decide: -20 +Decide: -22 +Decide: -16 +Decide: -18 +Decide: -20 +Decide: -23 +Decide: -25 +Decide: -30 +Decide: -27 +Decide: -30 +Decide: -25 +Decide: -27 +Decide: -32 +Decide: -23 +Decide: -20 +Decide: -23 +Decide: -18 +Decide: -20 +Decide: -25 +Decide: -14 +Decide: -15 +Decide: -16 +Decide: -18 +Decide: -22 +Decide: -23 +Decide: -29 +Decide: -25 +Decide: -29 +Decide: -23 +Decide: -25 +Decide: -30 +Decide: -21 +Decide: -22 +Decide: -23 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -23 +Decide: -28 +Decide: -30 +Decide: -22 +Decide: -18 +Decide: -21 +Decide: -22 +Decide: -25 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -25 +Decide: -28 +Decide: -32 +Decide: -22 +Decide: -21 +Decide: -22 +Decide: -16 +Decide: -18 +Decide: -21 +Decide: -23 +Decide: -25 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -25 +Decide: -28 +Decide: -32 +Decide: -23 +Decide: -21 +Decide: -23 +Decide: -18 +Decide: -21 +Decide: -25 +Decide: -15 +Decide: -16 +Decide: -22 +Decide: -18 +Decide: -22 +Decide: -16 +Decide: -18 +Decide: -23 +Decide: -12 +Decide: -13 +Decide: -14 +Decide: -15 +Decide: -16 +Decide: -19 +Decide: -20 +Decide: -22 +Decide: -23 +Decide: -26 +Decide: -29 +Decide: -30 +Decide: -36 +Decide: -33 +Decide: -36 +Decide: -30 +Decide: -33 +Decide: -37 +Decide: -27 +Decide: -29 +Decide: -30 +Decide: -36 +Decide: -34 +Decide: -36 +Decide: -30 +Decide: -34 +Decide: -37 +Decide: -29 +Decide: -26 +Decide: -27 +Decide: -29 +Decide: -33 +Decide: -36 +Decide: -34 +Decide: -36 +Decide: -33 +Decide: -34 +Decide: -40 +Decide: -29 +Decide: -27 +Decide: -29 +Decide: -23 +Decide: -26 +Decide: -27 +Decide: -30 +Decide: -33 +Decide: -37 +Decide: -34 +Decide: -37 +Decide: -33 +Decide: -34 +Decide: -40 +Decide: -30 +Decide: -27 +Decide: -30 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -21 +Decide: -22 +Decide: -23 +Decide: -26 +Decide: -29 +Decide: -30 +Decide: -36 +Decide: -33 +Decide: -36 +Decide: -30 +Decide: -33 +Decide: -37 +Decide: -28 +Decide: -29 +Decide: -30 +Decide: -36 +Decide: -35 +Decide: -36 +Decide: -30 +Decide: -35 +Decide: -37 +Decide: -29 +Decide: -26 +Decide: -28 +Decide: -29 +Decide: -33 +Decide: -36 +Decide: -35 +Decide: -36 +Decide: -33 +Decide: -35 +Decide: -40 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -23 +Decide: -26 +Decide: -28 +Decide: -30 +Decide: -33 +Decide: -37 +Decide: -35 +Decide: -37 +Decide: -33 +Decide: -35 +Decide: -40 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -26 +Decide: -28 +Decide: -33 +Decide: -22 +Decide: -23 +Decide: -29 +Decide: -26 +Decide: -29 +Decide: -23 +Decide: -26 +Decide: -30 +Decide: -20 +Decide: -21 +Decide: -22 +Decide: -23 +Decide: -27 +Decide: -29 +Decide: -30 +Decide: -36 +Decide: -34 +Decide: -36 +Decide: -30 +Decide: -34 +Decide: -37 +Decide: -28 +Decide: -29 +Decide: -30 +Decide: -36 +Decide: -35 +Decide: -36 +Decide: -30 +Decide: -35 +Decide: -37 +Decide: -29 +Decide: -27 +Decide: -28 +Decide: -29 +Decide: -34 +Decide: -36 +Decide: -35 +Decide: -36 +Decide: -34 +Decide: -35 +Decide: -41 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -23 +Decide: -27 +Decide: -28 +Decide: -30 +Decide: -34 +Decide: -37 +Decide: -35 +Decide: -37 +Decide: -34 +Decide: -35 +Decide: -41 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -22 +Decide: -23 +Decide: -29 +Decide: -27 +Decide: -29 +Decide: -23 +Decide: -27 +Decide: -30 +Decide: -21 +Decide: -22 +Decide: -23 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -23 +Decide: -28 +Decide: -30 +Decide: -22 +Decide: -19 +Decide: -20 +Decide: -21 +Decide: -22 +Decide: -26 +Decide: -27 +Decide: -29 +Decide: -33 +Decide: -36 +Decide: -34 +Decide: -36 +Decide: -33 +Decide: -34 +Decide: -40 +Decide: -28 +Decide: -29 +Decide: -33 +Decide: -36 +Decide: -35 +Decide: -36 +Decide: -33 +Decide: -35 +Decide: -40 +Decide: -29 +Decide: -27 +Decide: -28 +Decide: -29 +Decide: -34 +Decide: -36 +Decide: -35 +Decide: -36 +Decide: -34 +Decide: -35 +Decide: -41 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -26 +Decide: -27 +Decide: -28 +Decide: -33 +Decide: -34 +Decide: -40 +Decide: -35 +Decide: -40 +Decide: -34 +Decide: -35 +Decide: -41 +Decide: -33 +Decide: -28 +Decide: -33 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -22 +Decide: -26 +Decide: -29 +Decide: -27 +Decide: -29 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -21 +Decide: -22 +Decide: -26 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -26 +Decide: -28 +Decide: -33 +Decide: -22 +Decide: -20 +Decide: -21 +Decide: -22 +Decide: -27 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -22 +Decide: -21 +Decide: -22 +Decide: -16 +Decide: -19 +Decide: -20 +Decide: -21 +Decide: -23 +Decide: -26 +Decide: -27 +Decide: -30 +Decide: -33 +Decide: -37 +Decide: -34 +Decide: -37 +Decide: -33 +Decide: -34 +Decide: -40 +Decide: -28 +Decide: -30 +Decide: -33 +Decide: -37 +Decide: -35 +Decide: -37 +Decide: -33 +Decide: -35 +Decide: -40 +Decide: -30 +Decide: -27 +Decide: -28 +Decide: -30 +Decide: -34 +Decide: -37 +Decide: -35 +Decide: -37 +Decide: -34 +Decide: -35 +Decide: -41 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -26 +Decide: -27 +Decide: -28 +Decide: -33 +Decide: -34 +Decide: -40 +Decide: -35 +Decide: -40 +Decide: -34 +Decide: -35 +Decide: -41 +Decide: -33 +Decide: -28 +Decide: -33 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -23 +Decide: -26 +Decide: -30 +Decide: -27 +Decide: -30 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -21 +Decide: -23 +Decide: -26 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -26 +Decide: -28 +Decide: -33 +Decide: -23 +Decide: -20 +Decide: -21 +Decide: -23 +Decide: -27 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -23 +Decide: -21 +Decide: -23 +Decide: -19 +Decide: -20 +Decide: -21 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -28 +Decide: -33 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -26 +Decide: -21 +Decide: -26 +Decide: -20 +Decide: -21 +Decide: -27 +Decide: -15 +Decide: -16 +Decide: -19 +Decide: -22 +Decide: -23 +Decide: -29 +Decide: -26 +Decide: -29 +Decide: -23 +Decide: -26 +Decide: -30 +Decide: -20 +Decide: -22 +Decide: -23 +Decide: -29 +Decide: -27 +Decide: -29 +Decide: -23 +Decide: -27 +Decide: -30 +Decide: -22 +Decide: -19 +Decide: -20 +Decide: -22 +Decide: -26 +Decide: -29 +Decide: -27 +Decide: -29 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -22 +Decide: -20 +Decide: -22 +Decide: -16 +Decide: -19 +Decide: -20 +Decide: -23 +Decide: -26 +Decide: -30 +Decide: -27 +Decide: -30 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -23 +Decide: -20 +Decide: -23 +Decide: -19 +Decide: -20 +Decide: -26 +Decide: -14 +Decide: -15 +Decide: -16 +Decide: -19 +Decide: -22 +Decide: -23 +Decide: -29 +Decide: -26 +Decide: -29 +Decide: -23 +Decide: -26 +Decide: -30 +Decide: -21 +Decide: -22 +Decide: -23 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -23 +Decide: -28 +Decide: -30 +Decide: -22 +Decide: -19 +Decide: -21 +Decide: -22 +Decide: -26 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -26 +Decide: -28 +Decide: -33 +Decide: -22 +Decide: -21 +Decide: -22 +Decide: -16 +Decide: -19 +Decide: -21 +Decide: -23 +Decide: -26 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -26 +Decide: -28 +Decide: -33 +Decide: -23 +Decide: -21 +Decide: -23 +Decide: -19 +Decide: -21 +Decide: -26 +Decide: -15 +Decide: -16 +Decide: -22 +Decide: -19 +Decide: -22 +Decide: -16 +Decide: -19 +Decide: -23 +Decide: -13 +Decide: -14 +Decide: -15 +Decide: -16 +Decide: -20 +Decide: -22 +Decide: -23 +Decide: -29 +Decide: -27 +Decide: -29 +Decide: -23 +Decide: -27 +Decide: -30 +Decide: -21 +Decide: -22 +Decide: -23 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -23 +Decide: -28 +Decide: -30 +Decide: -22 +Decide: -20 +Decide: -21 +Decide: -22 +Decide: -27 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -22 +Decide: -21 +Decide: -22 +Decide: -16 +Decide: -20 +Decide: -21 +Decide: -23 +Decide: -27 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -23 +Decide: -21 +Decide: -23 +Decide: -20 +Decide: -21 +Decide: -27 +Decide: -15 +Decide: -16 +Decide: -22 +Decide: -20 +Decide: -22 +Decide: -16 +Decide: -20 +Decide: -23 +Decide: -14 +Decide: -15 +Decide: -16 +Decide: -22 +Decide: -21 +Decide: -22 +Decide: -16 +Decide: -21 +Decide: -23 +Decide: -15 +Decide: -11 +Decide: -12 +Decide: -13 +Decide: -14 +Decide: -15 +Decide: -18 +Decide: -19 +Decide: -20 +Decide: -22 +Decide: -25 +Decide: -26 +Decide: -29 +Decide: -32 +Decide: -36 +Decide: -33 +Decide: -36 +Decide: -32 +Decide: -33 +Decide: -39 +Decide: -27 +Decide: -29 +Decide: -32 +Decide: -36 +Decide: -34 +Decide: -36 +Decide: -32 +Decide: -34 +Decide: -39 +Decide: -29 +Decide: -26 +Decide: -27 +Decide: -29 +Decide: -33 +Decide: -36 +Decide: -34 +Decide: -36 +Decide: -33 +Decide: -34 +Decide: -40 +Decide: -29 +Decide: -27 +Decide: -29 +Decide: -25 +Decide: -26 +Decide: -27 +Decide: -32 +Decide: -33 +Decide: -39 +Decide: -34 +Decide: -39 +Decide: -33 +Decide: -34 +Decide: -40 +Decide: -32 +Decide: -27 +Decide: -32 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -21 +Decide: -22 +Decide: -25 +Decide: -26 +Decide: -29 +Decide: -32 +Decide: -36 +Decide: -33 +Decide: -36 +Decide: -32 +Decide: -33 +Decide: -39 +Decide: -28 +Decide: -29 +Decide: -32 +Decide: -36 +Decide: -35 +Decide: -36 +Decide: -32 +Decide: -35 +Decide: -39 +Decide: -29 +Decide: -26 +Decide: -28 +Decide: -29 +Decide: -33 +Decide: -36 +Decide: -35 +Decide: -36 +Decide: -33 +Decide: -35 +Decide: -40 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -25 +Decide: -26 +Decide: -28 +Decide: -32 +Decide: -33 +Decide: -39 +Decide: -35 +Decide: -39 +Decide: -33 +Decide: -35 +Decide: -40 +Decide: -32 +Decide: -28 +Decide: -32 +Decide: -26 +Decide: -28 +Decide: -33 +Decide: -22 +Decide: -25 +Decide: -29 +Decide: -26 +Decide: -29 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -20 +Decide: -21 +Decide: -22 +Decide: -25 +Decide: -27 +Decide: -29 +Decide: -32 +Decide: -36 +Decide: -34 +Decide: -36 +Decide: -32 +Decide: -34 +Decide: -39 +Decide: -28 +Decide: -29 +Decide: -32 +Decide: -36 +Decide: -35 +Decide: -36 +Decide: -32 +Decide: -35 +Decide: -39 +Decide: -29 +Decide: -27 +Decide: -28 +Decide: -29 +Decide: -34 +Decide: -36 +Decide: -35 +Decide: -36 +Decide: -34 +Decide: -35 +Decide: -41 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -25 +Decide: -27 +Decide: -28 +Decide: -32 +Decide: -34 +Decide: -39 +Decide: -35 +Decide: -39 +Decide: -34 +Decide: -35 +Decide: -41 +Decide: -32 +Decide: -28 +Decide: -32 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -22 +Decide: -25 +Decide: -29 +Decide: -27 +Decide: -29 +Decide: -25 +Decide: -27 +Decide: -32 +Decide: -21 +Decide: -22 +Decide: -25 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -25 +Decide: -28 +Decide: -32 +Decide: -22 +Decide: -19 +Decide: -20 +Decide: -21 +Decide: -22 +Decide: -26 +Decide: -27 +Decide: -29 +Decide: -33 +Decide: -36 +Decide: -34 +Decide: -36 +Decide: -33 +Decide: -34 +Decide: -40 +Decide: -28 +Decide: -29 +Decide: -33 +Decide: -36 +Decide: -35 +Decide: -36 +Decide: -33 +Decide: -35 +Decide: -40 +Decide: -29 +Decide: -27 +Decide: -28 +Decide: -29 +Decide: -34 +Decide: -36 +Decide: -35 +Decide: -36 +Decide: -34 +Decide: -35 +Decide: -41 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -26 +Decide: -27 +Decide: -28 +Decide: -33 +Decide: -34 +Decide: -40 +Decide: -35 +Decide: -40 +Decide: -34 +Decide: -35 +Decide: -41 +Decide: -33 +Decide: -28 +Decide: -33 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -22 +Decide: -26 +Decide: -29 +Decide: -27 +Decide: -29 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -21 +Decide: -22 +Decide: -26 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -26 +Decide: -28 +Decide: -33 +Decide: -22 +Decide: -20 +Decide: -21 +Decide: -22 +Decide: -27 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -22 +Decide: -21 +Decide: -22 +Decide: -18 +Decide: -19 +Decide: -20 +Decide: -21 +Decide: -25 +Decide: -26 +Decide: -27 +Decide: -32 +Decide: -33 +Decide: -39 +Decide: -34 +Decide: -39 +Decide: -33 +Decide: -34 +Decide: -40 +Decide: -28 +Decide: -32 +Decide: -33 +Decide: -39 +Decide: -35 +Decide: -39 +Decide: -33 +Decide: -35 +Decide: -40 +Decide: -32 +Decide: -27 +Decide: -28 +Decide: -32 +Decide: -34 +Decide: -39 +Decide: -35 +Decide: -39 +Decide: -34 +Decide: -35 +Decide: -41 +Decide: -32 +Decide: -28 +Decide: -32 +Decide: -26 +Decide: -27 +Decide: -28 +Decide: -33 +Decide: -34 +Decide: -40 +Decide: -35 +Decide: -40 +Decide: -34 +Decide: -35 +Decide: -41 +Decide: -33 +Decide: -28 +Decide: -33 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -27 +Decide: -32 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -21 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -28 +Decide: -32 +Decide: -26 +Decide: -28 +Decide: -33 +Decide: -25 +Decide: -20 +Decide: -21 +Decide: -25 +Decide: -27 +Decide: -32 +Decide: -28 +Decide: -32 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -25 +Decide: -21 +Decide: -25 +Decide: -19 +Decide: -20 +Decide: -21 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -28 +Decide: -33 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -26 +Decide: -21 +Decide: -26 +Decide: -20 +Decide: -21 +Decide: -27 +Decide: -15 +Decide: -18 +Decide: -19 +Decide: -22 +Decide: -25 +Decide: -29 +Decide: -26 +Decide: -29 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -20 +Decide: -22 +Decide: -25 +Decide: -29 +Decide: -27 +Decide: -29 +Decide: -25 +Decide: -27 +Decide: -32 +Decide: -22 +Decide: -19 +Decide: -20 +Decide: -22 +Decide: -26 +Decide: -29 +Decide: -27 +Decide: -29 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -22 +Decide: -20 +Decide: -22 +Decide: -18 +Decide: -19 +Decide: -20 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -27 +Decide: -32 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -25 +Decide: -20 +Decide: -25 +Decide: -19 +Decide: -20 +Decide: -26 +Decide: -14 +Decide: -15 +Decide: -18 +Decide: -19 +Decide: -22 +Decide: -25 +Decide: -29 +Decide: -26 +Decide: -29 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -21 +Decide: -22 +Decide: -25 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -25 +Decide: -28 +Decide: -32 +Decide: -22 +Decide: -19 +Decide: -21 +Decide: -22 +Decide: -26 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -26 +Decide: -28 +Decide: -33 +Decide: -22 +Decide: -21 +Decide: -22 +Decide: -18 +Decide: -19 +Decide: -21 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -28 +Decide: -32 +Decide: -26 +Decide: -28 +Decide: -33 +Decide: -25 +Decide: -21 +Decide: -25 +Decide: -19 +Decide: -21 +Decide: -26 +Decide: -15 +Decide: -18 +Decide: -22 +Decide: -19 +Decide: -22 +Decide: -18 +Decide: -19 +Decide: -25 +Decide: -13 +Decide: -14 +Decide: -15 +Decide: -18 +Decide: -20 +Decide: -22 +Decide: -25 +Decide: -29 +Decide: -27 +Decide: -29 +Decide: -25 +Decide: -27 +Decide: -32 +Decide: -21 +Decide: -22 +Decide: -25 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -25 +Decide: -28 +Decide: -32 +Decide: -22 +Decide: -20 +Decide: -21 +Decide: -22 +Decide: -27 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -22 +Decide: -21 +Decide: -22 +Decide: -18 +Decide: -20 +Decide: -21 +Decide: -25 +Decide: -27 +Decide: -32 +Decide: -28 +Decide: -32 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -25 +Decide: -21 +Decide: -25 +Decide: -20 +Decide: -21 +Decide: -27 +Decide: -15 +Decide: -18 +Decide: -22 +Decide: -20 +Decide: -22 +Decide: -18 +Decide: -20 +Decide: -25 +Decide: -14 +Decide: -15 +Decide: -18 +Decide: -22 +Decide: -21 +Decide: -22 +Decide: -18 +Decide: -21 +Decide: -25 +Decide: -15 +Decide: -12 +Decide: -13 +Decide: -14 +Decide: -15 +Decide: -19 +Decide: -20 +Decide: -22 +Decide: -26 +Decide: -29 +Decide: -27 +Decide: -29 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -21 +Decide: -22 +Decide: -26 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -26 +Decide: -28 +Decide: -33 +Decide: -22 +Decide: -20 +Decide: -21 +Decide: -22 +Decide: -27 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -22 +Decide: -21 +Decide: -22 +Decide: -19 +Decide: -20 +Decide: -21 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -28 +Decide: -33 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -26 +Decide: -21 +Decide: -26 +Decide: -20 +Decide: -21 +Decide: -27 +Decide: -15 +Decide: -19 +Decide: -22 +Decide: -20 +Decide: -22 +Decide: -19 +Decide: -20 +Decide: -26 +Decide: -14 +Decide: -15 +Decide: -19 +Decide: -22 +Decide: -21 +Decide: -22 +Decide: -19 +Decide: -21 +Decide: -26 +Decide: -15 +Decide: -13 +Decide: -14 +Decide: -15 +Decide: -20 +Decide: -22 +Decide: -21 +Decide: -22 +Decide: -20 +Decide: -21 +Decide: -27 +Decide: -15 +Decide: -14 +Decide: -15 +Decide: -9 +Decide: -11 +Decide: -12 +Decide: -13 +Decide: -14 +Decide: -16 +Decide: -18 +Decide: -19 +Decide: -20 +Decide: -23 +Decide: -25 +Decide: -26 +Decide: -30 +Decide: -32 +Decide: -37 +Decide: -33 +Decide: -37 +Decide: -32 +Decide: -33 +Decide: -39 +Decide: -27 +Decide: -30 +Decide: -32 +Decide: -37 +Decide: -34 +Decide: -37 +Decide: -32 +Decide: -34 +Decide: -39 +Decide: -30 +Decide: -26 +Decide: -27 +Decide: -30 +Decide: -33 +Decide: -37 +Decide: -34 +Decide: -37 +Decide: -33 +Decide: -34 +Decide: -40 +Decide: -30 +Decide: -27 +Decide: -30 +Decide: -25 +Decide: -26 +Decide: -27 +Decide: -32 +Decide: -33 +Decide: -39 +Decide: -34 +Decide: -39 +Decide: -33 +Decide: -34 +Decide: -40 +Decide: -32 +Decide: -27 +Decide: -32 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -21 +Decide: -23 +Decide: -25 +Decide: -26 +Decide: -30 +Decide: -32 +Decide: -37 +Decide: -33 +Decide: -37 +Decide: -32 +Decide: -33 +Decide: -39 +Decide: -28 +Decide: -30 +Decide: -32 +Decide: -37 +Decide: -35 +Decide: -37 +Decide: -32 +Decide: -35 +Decide: -39 +Decide: -30 +Decide: -26 +Decide: -28 +Decide: -30 +Decide: -33 +Decide: -37 +Decide: -35 +Decide: -37 +Decide: -33 +Decide: -35 +Decide: -40 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -25 +Decide: -26 +Decide: -28 +Decide: -32 +Decide: -33 +Decide: -39 +Decide: -35 +Decide: -39 +Decide: -33 +Decide: -35 +Decide: -40 +Decide: -32 +Decide: -28 +Decide: -32 +Decide: -26 +Decide: -28 +Decide: -33 +Decide: -23 +Decide: -25 +Decide: -30 +Decide: -26 +Decide: -30 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -20 +Decide: -21 +Decide: -23 +Decide: -25 +Decide: -27 +Decide: -30 +Decide: -32 +Decide: -37 +Decide: -34 +Decide: -37 +Decide: -32 +Decide: -34 +Decide: -39 +Decide: -28 +Decide: -30 +Decide: -32 +Decide: -37 +Decide: -35 +Decide: -37 +Decide: -32 +Decide: -35 +Decide: -39 +Decide: -30 +Decide: -27 +Decide: -28 +Decide: -30 +Decide: -34 +Decide: -37 +Decide: -35 +Decide: -37 +Decide: -34 +Decide: -35 +Decide: -41 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -25 +Decide: -27 +Decide: -28 +Decide: -32 +Decide: -34 +Decide: -39 +Decide: -35 +Decide: -39 +Decide: -34 +Decide: -35 +Decide: -41 +Decide: -32 +Decide: -28 +Decide: -32 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -23 +Decide: -25 +Decide: -30 +Decide: -27 +Decide: -30 +Decide: -25 +Decide: -27 +Decide: -32 +Decide: -21 +Decide: -23 +Decide: -25 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -25 +Decide: -28 +Decide: -32 +Decide: -23 +Decide: -19 +Decide: -20 +Decide: -21 +Decide: -23 +Decide: -26 +Decide: -27 +Decide: -30 +Decide: -33 +Decide: -37 +Decide: -34 +Decide: -37 +Decide: -33 +Decide: -34 +Decide: -40 +Decide: -28 +Decide: -30 +Decide: -33 +Decide: -37 +Decide: -35 +Decide: -37 +Decide: -33 +Decide: -35 +Decide: -40 +Decide: -30 +Decide: -27 +Decide: -28 +Decide: -30 +Decide: -34 +Decide: -37 +Decide: -35 +Decide: -37 +Decide: -34 +Decide: -35 +Decide: -41 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -26 +Decide: -27 +Decide: -28 +Decide: -33 +Decide: -34 +Decide: -40 +Decide: -35 +Decide: -40 +Decide: -34 +Decide: -35 +Decide: -41 +Decide: -33 +Decide: -28 +Decide: -33 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -23 +Decide: -26 +Decide: -30 +Decide: -27 +Decide: -30 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -21 +Decide: -23 +Decide: -26 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -26 +Decide: -28 +Decide: -33 +Decide: -23 +Decide: -20 +Decide: -21 +Decide: -23 +Decide: -27 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -23 +Decide: -21 +Decide: -23 +Decide: -18 +Decide: -19 +Decide: -20 +Decide: -21 +Decide: -25 +Decide: -26 +Decide: -27 +Decide: -32 +Decide: -33 +Decide: -39 +Decide: -34 +Decide: -39 +Decide: -33 +Decide: -34 +Decide: -40 +Decide: -28 +Decide: -32 +Decide: -33 +Decide: -39 +Decide: -35 +Decide: -39 +Decide: -33 +Decide: -35 +Decide: -40 +Decide: -32 +Decide: -27 +Decide: -28 +Decide: -32 +Decide: -34 +Decide: -39 +Decide: -35 +Decide: -39 +Decide: -34 +Decide: -35 +Decide: -41 +Decide: -32 +Decide: -28 +Decide: -32 +Decide: -26 +Decide: -27 +Decide: -28 +Decide: -33 +Decide: -34 +Decide: -40 +Decide: -35 +Decide: -40 +Decide: -34 +Decide: -35 +Decide: -41 +Decide: -33 +Decide: -28 +Decide: -33 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -27 +Decide: -32 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -21 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -28 +Decide: -32 +Decide: -26 +Decide: -28 +Decide: -33 +Decide: -25 +Decide: -20 +Decide: -21 +Decide: -25 +Decide: -27 +Decide: -32 +Decide: -28 +Decide: -32 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -25 +Decide: -21 +Decide: -25 +Decide: -19 +Decide: -20 +Decide: -21 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -28 +Decide: -33 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -26 +Decide: -21 +Decide: -26 +Decide: -20 +Decide: -21 +Decide: -27 +Decide: -16 +Decide: -18 +Decide: -19 +Decide: -23 +Decide: -25 +Decide: -30 +Decide: -26 +Decide: -30 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -20 +Decide: -23 +Decide: -25 +Decide: -30 +Decide: -27 +Decide: -30 +Decide: -25 +Decide: -27 +Decide: -32 +Decide: -23 +Decide: -19 +Decide: -20 +Decide: -23 +Decide: -26 +Decide: -30 +Decide: -27 +Decide: -30 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -23 +Decide: -20 +Decide: -23 +Decide: -18 +Decide: -19 +Decide: -20 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -27 +Decide: -32 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -25 +Decide: -20 +Decide: -25 +Decide: -19 +Decide: -20 +Decide: -26 +Decide: -14 +Decide: -16 +Decide: -18 +Decide: -19 +Decide: -23 +Decide: -25 +Decide: -30 +Decide: -26 +Decide: -30 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -21 +Decide: -23 +Decide: -25 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -25 +Decide: -28 +Decide: -32 +Decide: -23 +Decide: -19 +Decide: -21 +Decide: -23 +Decide: -26 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -26 +Decide: -28 +Decide: -33 +Decide: -23 +Decide: -21 +Decide: -23 +Decide: -18 +Decide: -19 +Decide: -21 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -28 +Decide: -32 +Decide: -26 +Decide: -28 +Decide: -33 +Decide: -25 +Decide: -21 +Decide: -25 +Decide: -19 +Decide: -21 +Decide: -26 +Decide: -16 +Decide: -18 +Decide: -23 +Decide: -19 +Decide: -23 +Decide: -18 +Decide: -19 +Decide: -25 +Decide: -13 +Decide: -14 +Decide: -16 +Decide: -18 +Decide: -20 +Decide: -23 +Decide: -25 +Decide: -30 +Decide: -27 +Decide: -30 +Decide: -25 +Decide: -27 +Decide: -32 +Decide: -21 +Decide: -23 +Decide: -25 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -25 +Decide: -28 +Decide: -32 +Decide: -23 +Decide: -20 +Decide: -21 +Decide: -23 +Decide: -27 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -23 +Decide: -21 +Decide: -23 +Decide: -18 +Decide: -20 +Decide: -21 +Decide: -25 +Decide: -27 +Decide: -32 +Decide: -28 +Decide: -32 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -25 +Decide: -21 +Decide: -25 +Decide: -20 +Decide: -21 +Decide: -27 +Decide: -16 +Decide: -18 +Decide: -23 +Decide: -20 +Decide: -23 +Decide: -18 +Decide: -20 +Decide: -25 +Decide: -14 +Decide: -16 +Decide: -18 +Decide: -23 +Decide: -21 +Decide: -23 +Decide: -18 +Decide: -21 +Decide: -25 +Decide: -16 +Decide: -12 +Decide: -13 +Decide: -14 +Decide: -16 +Decide: -19 +Decide: -20 +Decide: -23 +Decide: -26 +Decide: -30 +Decide: -27 +Decide: -30 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -21 +Decide: -23 +Decide: -26 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -26 +Decide: -28 +Decide: -33 +Decide: -23 +Decide: -20 +Decide: -21 +Decide: -23 +Decide: -27 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -23 +Decide: -21 +Decide: -23 +Decide: -19 +Decide: -20 +Decide: -21 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -28 +Decide: -33 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -26 +Decide: -21 +Decide: -26 +Decide: -20 +Decide: -21 +Decide: -27 +Decide: -16 +Decide: -19 +Decide: -23 +Decide: -20 +Decide: -23 +Decide: -19 +Decide: -20 +Decide: -26 +Decide: -14 +Decide: -16 +Decide: -19 +Decide: -23 +Decide: -21 +Decide: -23 +Decide: -19 +Decide: -21 +Decide: -26 +Decide: -16 +Decide: -13 +Decide: -14 +Decide: -16 +Decide: -20 +Decide: -23 +Decide: -21 +Decide: -23 +Decide: -20 +Decide: -21 +Decide: -27 +Decide: -16 +Decide: -14 +Decide: -16 +Decide: -11 +Decide: -12 +Decide: -13 +Decide: -14 +Decide: -18 +Decide: -19 +Decide: -20 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -27 +Decide: -32 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -21 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -28 +Decide: -32 +Decide: -26 +Decide: -28 +Decide: -33 +Decide: -25 +Decide: -20 +Decide: -21 +Decide: -25 +Decide: -27 +Decide: -32 +Decide: -28 +Decide: -32 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -25 +Decide: -21 +Decide: -25 +Decide: -19 +Decide: -20 +Decide: -21 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -28 +Decide: -33 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -26 +Decide: -21 +Decide: -26 +Decide: -20 +Decide: -21 +Decide: -27 +Decide: -18 +Decide: -19 +Decide: -25 +Decide: -20 +Decide: -25 +Decide: -19 +Decide: -20 +Decide: -26 +Decide: -14 +Decide: -18 +Decide: -19 +Decide: -25 +Decide: -21 +Decide: -25 +Decide: -19 +Decide: -21 +Decide: -26 +Decide: -18 +Decide: -13 +Decide: -14 +Decide: -18 +Decide: -20 +Decide: -25 +Decide: -21 +Decide: -25 +Decide: -20 +Decide: -21 +Decide: -27 +Decide: -18 +Decide: -14 +Decide: -18 +Decide: -12 +Decide: -13 +Decide: -14 +Decide: -19 +Decide: -20 +Decide: -26 +Decide: -21 +Decide: -26 +Decide: -20 +Decide: -21 +Decide: -27 +Decide: -19 +Decide: -14 +Decide: -19 +Decide: -13 +Decide: -14 +Decide: -20 +Decide: -8 +Decide: -9 +Decide: -11 +Decide: -12 +Decide: -15 +Decide: -16 +Decide: -18 +Decide: -22 +Decide: -23 +Decide: -29 +Decide: -25 +Decide: -29 +Decide: -23 +Decide: -25 +Decide: -30 +Decide: -19 +Decide: -22 +Decide: -23 +Decide: -29 +Decide: -26 +Decide: -29 +Decide: -23 +Decide: -26 +Decide: -30 +Decide: -22 +Decide: -18 +Decide: -19 +Decide: -22 +Decide: -25 +Decide: -29 +Decide: -26 +Decide: -29 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -22 +Decide: -19 +Decide: -22 +Decide: -16 +Decide: -18 +Decide: -19 +Decide: -23 +Decide: -25 +Decide: -30 +Decide: -26 +Decide: -30 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -23 +Decide: -19 +Decide: -23 +Decide: -18 +Decide: -19 +Decide: -25 +Decide: -13 +Decide: -15 +Decide: -16 +Decide: -18 +Decide: -22 +Decide: -23 +Decide: -29 +Decide: -25 +Decide: -29 +Decide: -23 +Decide: -25 +Decide: -30 +Decide: -20 +Decide: -22 +Decide: -23 +Decide: -29 +Decide: -27 +Decide: -29 +Decide: -23 +Decide: -27 +Decide: -30 +Decide: -22 +Decide: -18 +Decide: -20 +Decide: -22 +Decide: -25 +Decide: -29 +Decide: -27 +Decide: -29 +Decide: -25 +Decide: -27 +Decide: -32 +Decide: -22 +Decide: -20 +Decide: -22 +Decide: -16 +Decide: -18 +Decide: -20 +Decide: -23 +Decide: -25 +Decide: -30 +Decide: -27 +Decide: -30 +Decide: -25 +Decide: -27 +Decide: -32 +Decide: -23 +Decide: -20 +Decide: -23 +Decide: -18 +Decide: -20 +Decide: -25 +Decide: -15 +Decide: -16 +Decide: -22 +Decide: -18 +Decide: -22 +Decide: -16 +Decide: -18 +Decide: -23 +Decide: -12 +Decide: -13 +Decide: -15 +Decide: -16 +Decide: -19 +Decide: -22 +Decide: -23 +Decide: -29 +Decide: -26 +Decide: -29 +Decide: -23 +Decide: -26 +Decide: -30 +Decide: -20 +Decide: -22 +Decide: -23 +Decide: -29 +Decide: -27 +Decide: -29 +Decide: -23 +Decide: -27 +Decide: -30 +Decide: -22 +Decide: -19 +Decide: -20 +Decide: -22 +Decide: -26 +Decide: -29 +Decide: -27 +Decide: -29 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -22 +Decide: -20 +Decide: -22 +Decide: -16 +Decide: -19 +Decide: -20 +Decide: -23 +Decide: -26 +Decide: -30 +Decide: -27 +Decide: -30 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -23 +Decide: -20 +Decide: -23 +Decide: -19 +Decide: -20 +Decide: -26 +Decide: -15 +Decide: -16 +Decide: -22 +Decide: -19 +Decide: -22 +Decide: -16 +Decide: -19 +Decide: -23 +Decide: -13 +Decide: -15 +Decide: -16 +Decide: -22 +Decide: -20 +Decide: -22 +Decide: -16 +Decide: -20 +Decide: -23 +Decide: -15 +Decide: -11 +Decide: -12 +Decide: -13 +Decide: -15 +Decide: -18 +Decide: -19 +Decide: -22 +Decide: -25 +Decide: -29 +Decide: -26 +Decide: -29 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -20 +Decide: -22 +Decide: -25 +Decide: -29 +Decide: -27 +Decide: -29 +Decide: -25 +Decide: -27 +Decide: -32 +Decide: -22 +Decide: -19 +Decide: -20 +Decide: -22 +Decide: -26 +Decide: -29 +Decide: -27 +Decide: -29 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -22 +Decide: -20 +Decide: -22 +Decide: -18 +Decide: -19 +Decide: -20 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -27 +Decide: -32 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -25 +Decide: -20 +Decide: -25 +Decide: -19 +Decide: -20 +Decide: -26 +Decide: -15 +Decide: -18 +Decide: -22 +Decide: -19 +Decide: -22 +Decide: -18 +Decide: -19 +Decide: -25 +Decide: -13 +Decide: -15 +Decide: -18 +Decide: -22 +Decide: -20 +Decide: -22 +Decide: -18 +Decide: -20 +Decide: -25 +Decide: -15 +Decide: -12 +Decide: -13 +Decide: -15 +Decide: -19 +Decide: -22 +Decide: -20 +Decide: -22 +Decide: -19 +Decide: -20 +Decide: -26 +Decide: -15 +Decide: -13 +Decide: -15 +Decide: -9 +Decide: -11 +Decide: -12 +Decide: -13 +Decide: -16 +Decide: -18 +Decide: -19 +Decide: -23 +Decide: -25 +Decide: -30 +Decide: -26 +Decide: -30 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -20 +Decide: -23 +Decide: -25 +Decide: -30 +Decide: -27 +Decide: -30 +Decide: -25 +Decide: -27 +Decide: -32 +Decide: -23 +Decide: -19 +Decide: -20 +Decide: -23 +Decide: -26 +Decide: -30 +Decide: -27 +Decide: -30 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -23 +Decide: -20 +Decide: -23 +Decide: -18 +Decide: -19 +Decide: -20 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -27 +Decide: -32 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -25 +Decide: -20 +Decide: -25 +Decide: -19 +Decide: -20 +Decide: -26 +Decide: -16 +Decide: -18 +Decide: -23 +Decide: -19 +Decide: -23 +Decide: -18 +Decide: -19 +Decide: -25 +Decide: -13 +Decide: -16 +Decide: -18 +Decide: -23 +Decide: -20 +Decide: -23 +Decide: -18 +Decide: -20 +Decide: -25 +Decide: -16 +Decide: -12 +Decide: -13 +Decide: -16 +Decide: -19 +Decide: -23 +Decide: -20 +Decide: -23 +Decide: -19 +Decide: -20 +Decide: -26 +Decide: -16 +Decide: -13 +Decide: -16 +Decide: -11 +Decide: -12 +Decide: -13 +Decide: -18 +Decide: -19 +Decide: -25 +Decide: -20 +Decide: -25 +Decide: -19 +Decide: -20 +Decide: -26 +Decide: -18 +Decide: -13 +Decide: -18 +Decide: -12 +Decide: -13 +Decide: -19 +Decide: -7 +Decide: -8 +Decide: -9 +Decide: -11 +Decide: -12 +Decide: -15 +Decide: -16 +Decide: -18 +Decide: -22 +Decide: -23 +Decide: -29 +Decide: -25 +Decide: -29 +Decide: -23 +Decide: -25 +Decide: -30 +Decide: -19 +Decide: -22 +Decide: -23 +Decide: -29 +Decide: -26 +Decide: -29 +Decide: -23 +Decide: -26 +Decide: -30 +Decide: -22 +Decide: -18 +Decide: -19 +Decide: -22 +Decide: -25 +Decide: -29 +Decide: -26 +Decide: -29 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -22 +Decide: -19 +Decide: -22 +Decide: -16 +Decide: -18 +Decide: -19 +Decide: -23 +Decide: -25 +Decide: -30 +Decide: -26 +Decide: -30 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -23 +Decide: -19 +Decide: -23 +Decide: -18 +Decide: -19 +Decide: -25 +Decide: -14 +Decide: -15 +Decide: -16 +Decide: -18 +Decide: -22 +Decide: -23 +Decide: -29 +Decide: -25 +Decide: -29 +Decide: -23 +Decide: -25 +Decide: -30 +Decide: -21 +Decide: -22 +Decide: -23 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -23 +Decide: -28 +Decide: -30 +Decide: -22 +Decide: -18 +Decide: -21 +Decide: -22 +Decide: -25 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -25 +Decide: -28 +Decide: -32 +Decide: -22 +Decide: -21 +Decide: -22 +Decide: -16 +Decide: -18 +Decide: -21 +Decide: -23 +Decide: -25 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -25 +Decide: -28 +Decide: -32 +Decide: -23 +Decide: -21 +Decide: -23 +Decide: -18 +Decide: -21 +Decide: -25 +Decide: -15 +Decide: -16 +Decide: -22 +Decide: -18 +Decide: -22 +Decide: -16 +Decide: -18 +Decide: -23 +Decide: -12 +Decide: -14 +Decide: -15 +Decide: -16 +Decide: -19 +Decide: -22 +Decide: -23 +Decide: -29 +Decide: -26 +Decide: -29 +Decide: -23 +Decide: -26 +Decide: -30 +Decide: -21 +Decide: -22 +Decide: -23 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -23 +Decide: -28 +Decide: -30 +Decide: -22 +Decide: -19 +Decide: -21 +Decide: -22 +Decide: -26 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -26 +Decide: -28 +Decide: -33 +Decide: -22 +Decide: -21 +Decide: -22 +Decide: -16 +Decide: -19 +Decide: -21 +Decide: -23 +Decide: -26 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -26 +Decide: -28 +Decide: -33 +Decide: -23 +Decide: -21 +Decide: -23 +Decide: -19 +Decide: -21 +Decide: -26 +Decide: -15 +Decide: -16 +Decide: -22 +Decide: -19 +Decide: -22 +Decide: -16 +Decide: -19 +Decide: -23 +Decide: -14 +Decide: -15 +Decide: -16 +Decide: -22 +Decide: -21 +Decide: -22 +Decide: -16 +Decide: -21 +Decide: -23 +Decide: -15 +Decide: -11 +Decide: -12 +Decide: -14 +Decide: -15 +Decide: -18 +Decide: -19 +Decide: -22 +Decide: -25 +Decide: -29 +Decide: -26 +Decide: -29 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -21 +Decide: -22 +Decide: -25 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -25 +Decide: -28 +Decide: -32 +Decide: -22 +Decide: -19 +Decide: -21 +Decide: -22 +Decide: -26 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -26 +Decide: -28 +Decide: -33 +Decide: -22 +Decide: -21 +Decide: -22 +Decide: -18 +Decide: -19 +Decide: -21 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -28 +Decide: -32 +Decide: -26 +Decide: -28 +Decide: -33 +Decide: -25 +Decide: -21 +Decide: -25 +Decide: -19 +Decide: -21 +Decide: -26 +Decide: -15 +Decide: -18 +Decide: -22 +Decide: -19 +Decide: -22 +Decide: -18 +Decide: -19 +Decide: -25 +Decide: -14 +Decide: -15 +Decide: -18 +Decide: -22 +Decide: -21 +Decide: -22 +Decide: -18 +Decide: -21 +Decide: -25 +Decide: -15 +Decide: -12 +Decide: -14 +Decide: -15 +Decide: -19 +Decide: -22 +Decide: -21 +Decide: -22 +Decide: -19 +Decide: -21 +Decide: -26 +Decide: -15 +Decide: -14 +Decide: -15 +Decide: -9 +Decide: -11 +Decide: -12 +Decide: -14 +Decide: -16 +Decide: -18 +Decide: -19 +Decide: -23 +Decide: -25 +Decide: -30 +Decide: -26 +Decide: -30 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -21 +Decide: -23 +Decide: -25 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -25 +Decide: -28 +Decide: -32 +Decide: -23 +Decide: -19 +Decide: -21 +Decide: -23 +Decide: -26 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -26 +Decide: -28 +Decide: -33 +Decide: -23 +Decide: -21 +Decide: -23 +Decide: -18 +Decide: -19 +Decide: -21 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -28 +Decide: -32 +Decide: -26 +Decide: -28 +Decide: -33 +Decide: -25 +Decide: -21 +Decide: -25 +Decide: -19 +Decide: -21 +Decide: -26 +Decide: -16 +Decide: -18 +Decide: -23 +Decide: -19 +Decide: -23 +Decide: -18 +Decide: -19 +Decide: -25 +Decide: -14 +Decide: -16 +Decide: -18 +Decide: -23 +Decide: -21 +Decide: -23 +Decide: -18 +Decide: -21 +Decide: -25 +Decide: -16 +Decide: -12 +Decide: -14 +Decide: -16 +Decide: -19 +Decide: -23 +Decide: -21 +Decide: -23 +Decide: -19 +Decide: -21 +Decide: -26 +Decide: -16 +Decide: -14 +Decide: -16 +Decide: -11 +Decide: -12 +Decide: -14 +Decide: -18 +Decide: -19 +Decide: -25 +Decide: -21 +Decide: -25 +Decide: -19 +Decide: -21 +Decide: -26 +Decide: -18 +Decide: -14 +Decide: -18 +Decide: -12 +Decide: -14 +Decide: -19 +Decide: -8 +Decide: -9 +Decide: -11 +Decide: -15 +Decide: -16 +Decide: -22 +Decide: -18 +Decide: -22 +Decide: -16 +Decide: -18 +Decide: -23 +Decide: -12 +Decide: -15 +Decide: -16 +Decide: -22 +Decide: -19 +Decide: -22 +Decide: -16 +Decide: -19 +Decide: -23 +Decide: -15 +Decide: -11 +Decide: -12 +Decide: -15 +Decide: -18 +Decide: -22 +Decide: -19 +Decide: -22 +Decide: -18 +Decide: -19 +Decide: -25 +Decide: -15 +Decide: -12 +Decide: -15 +Decide: -9 +Decide: -11 +Decide: -12 +Decide: -16 +Decide: -18 +Decide: -23 +Decide: -19 +Decide: -23 +Decide: -18 +Decide: -19 +Decide: -25 +Decide: -16 +Decide: -12 +Decide: -16 +Decide: -11 +Decide: -12 +Decide: -18 +Decide: -6 +Decide: -7 +Decide: -8 +Decide: -9 +Decide: -11 +Decide: -13 +Decide: -15 +Decide: -16 +Decide: -18 +Decide: -22 +Decide: -23 +Decide: -29 +Decide: -25 +Decide: -29 +Decide: -23 +Decide: -25 +Decide: -30 +Decide: -20 +Decide: -22 +Decide: -23 +Decide: -29 +Decide: -27 +Decide: -29 +Decide: -23 +Decide: -27 +Decide: -30 +Decide: -22 +Decide: -18 +Decide: -20 +Decide: -22 +Decide: -25 +Decide: -29 +Decide: -27 +Decide: -29 +Decide: -25 +Decide: -27 +Decide: -32 +Decide: -22 +Decide: -20 +Decide: -22 +Decide: -16 +Decide: -18 +Decide: -20 +Decide: -23 +Decide: -25 +Decide: -30 +Decide: -27 +Decide: -30 +Decide: -25 +Decide: -27 +Decide: -32 +Decide: -23 +Decide: -20 +Decide: -23 +Decide: -18 +Decide: -20 +Decide: -25 +Decide: -14 +Decide: -15 +Decide: -16 +Decide: -18 +Decide: -22 +Decide: -23 +Decide: -29 +Decide: -25 +Decide: -29 +Decide: -23 +Decide: -25 +Decide: -30 +Decide: -21 +Decide: -22 +Decide: -23 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -23 +Decide: -28 +Decide: -30 +Decide: -22 +Decide: -18 +Decide: -21 +Decide: -22 +Decide: -25 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -25 +Decide: -28 +Decide: -32 +Decide: -22 +Decide: -21 +Decide: -22 +Decide: -16 +Decide: -18 +Decide: -21 +Decide: -23 +Decide: -25 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -25 +Decide: -28 +Decide: -32 +Decide: -23 +Decide: -21 +Decide: -23 +Decide: -18 +Decide: -21 +Decide: -25 +Decide: -15 +Decide: -16 +Decide: -22 +Decide: -18 +Decide: -22 +Decide: -16 +Decide: -18 +Decide: -23 +Decide: -13 +Decide: -14 +Decide: -15 +Decide: -16 +Decide: -20 +Decide: -22 +Decide: -23 +Decide: -29 +Decide: -27 +Decide: -29 +Decide: -23 +Decide: -27 +Decide: -30 +Decide: -21 +Decide: -22 +Decide: -23 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -23 +Decide: -28 +Decide: -30 +Decide: -22 +Decide: -20 +Decide: -21 +Decide: -22 +Decide: -27 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -22 +Decide: -21 +Decide: -22 +Decide: -16 +Decide: -20 +Decide: -21 +Decide: -23 +Decide: -27 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -23 +Decide: -21 +Decide: -23 +Decide: -20 +Decide: -21 +Decide: -27 +Decide: -15 +Decide: -16 +Decide: -22 +Decide: -20 +Decide: -22 +Decide: -16 +Decide: -20 +Decide: -23 +Decide: -14 +Decide: -15 +Decide: -16 +Decide: -22 +Decide: -21 +Decide: -22 +Decide: -16 +Decide: -21 +Decide: -23 +Decide: -15 +Decide: -11 +Decide: -13 +Decide: -14 +Decide: -15 +Decide: -18 +Decide: -20 +Decide: -22 +Decide: -25 +Decide: -29 +Decide: -27 +Decide: -29 +Decide: -25 +Decide: -27 +Decide: -32 +Decide: -21 +Decide: -22 +Decide: -25 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -25 +Decide: -28 +Decide: -32 +Decide: -22 +Decide: -20 +Decide: -21 +Decide: -22 +Decide: -27 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -22 +Decide: -21 +Decide: -22 +Decide: -18 +Decide: -20 +Decide: -21 +Decide: -25 +Decide: -27 +Decide: -32 +Decide: -28 +Decide: -32 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -25 +Decide: -21 +Decide: -25 +Decide: -20 +Decide: -21 +Decide: -27 +Decide: -15 +Decide: -18 +Decide: -22 +Decide: -20 +Decide: -22 +Decide: -18 +Decide: -20 +Decide: -25 +Decide: -14 +Decide: -15 +Decide: -18 +Decide: -22 +Decide: -21 +Decide: -22 +Decide: -18 +Decide: -21 +Decide: -25 +Decide: -15 +Decide: -13 +Decide: -14 +Decide: -15 +Decide: -20 +Decide: -22 +Decide: -21 +Decide: -22 +Decide: -20 +Decide: -21 +Decide: -27 +Decide: -15 +Decide: -14 +Decide: -15 +Decide: -9 +Decide: -11 +Decide: -13 +Decide: -14 +Decide: -16 +Decide: -18 +Decide: -20 +Decide: -23 +Decide: -25 +Decide: -30 +Decide: -27 +Decide: -30 +Decide: -25 +Decide: -27 +Decide: -32 +Decide: -21 +Decide: -23 +Decide: -25 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -25 +Decide: -28 +Decide: -32 +Decide: -23 +Decide: -20 +Decide: -21 +Decide: -23 +Decide: -27 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -23 +Decide: -21 +Decide: -23 +Decide: -18 +Decide: -20 +Decide: -21 +Decide: -25 +Decide: -27 +Decide: -32 +Decide: -28 +Decide: -32 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -25 +Decide: -21 +Decide: -25 +Decide: -20 +Decide: -21 +Decide: -27 +Decide: -16 +Decide: -18 +Decide: -23 +Decide: -20 +Decide: -23 +Decide: -18 +Decide: -20 +Decide: -25 +Decide: -14 +Decide: -16 +Decide: -18 +Decide: -23 +Decide: -21 +Decide: -23 +Decide: -18 +Decide: -21 +Decide: -25 +Decide: -16 +Decide: -13 +Decide: -14 +Decide: -16 +Decide: -20 +Decide: -23 +Decide: -21 +Decide: -23 +Decide: -20 +Decide: -21 +Decide: -27 +Decide: -16 +Decide: -14 +Decide: -16 +Decide: -11 +Decide: -13 +Decide: -14 +Decide: -18 +Decide: -20 +Decide: -25 +Decide: -21 +Decide: -25 +Decide: -20 +Decide: -21 +Decide: -27 +Decide: -18 +Decide: -14 +Decide: -18 +Decide: -13 +Decide: -14 +Decide: -20 +Decide: -8 +Decide: -9 +Decide: -11 +Decide: -15 +Decide: -16 +Decide: -22 +Decide: -18 +Decide: -22 +Decide: -16 +Decide: -18 +Decide: -23 +Decide: -13 +Decide: -15 +Decide: -16 +Decide: -22 +Decide: -20 +Decide: -22 +Decide: -16 +Decide: -20 +Decide: -23 +Decide: -15 +Decide: -11 +Decide: -13 +Decide: -15 +Decide: -18 +Decide: -22 +Decide: -20 +Decide: -22 +Decide: -18 +Decide: -20 +Decide: -25 +Decide: -15 +Decide: -13 +Decide: -15 +Decide: -9 +Decide: -11 +Decide: -13 +Decide: -16 +Decide: -18 +Decide: -23 +Decide: -20 +Decide: -23 +Decide: -18 +Decide: -20 +Decide: -25 +Decide: -16 +Decide: -13 +Decide: -16 +Decide: -11 +Decide: -13 +Decide: -18 +Decide: -7 +Decide: -8 +Decide: -9 +Decide: -11 +Decide: -15 +Decide: -16 +Decide: -22 +Decide: -18 +Decide: -22 +Decide: -16 +Decide: -18 +Decide: -23 +Decide: -14 +Decide: -15 +Decide: -16 +Decide: -22 +Decide: -21 +Decide: -22 +Decide: -16 +Decide: -21 +Decide: -23 +Decide: -15 +Decide: -11 +Decide: -14 +Decide: -15 +Decide: -18 +Decide: -22 +Decide: -21 +Decide: -22 +Decide: -18 +Decide: -21 +Decide: -25 +Decide: -15 +Decide: -14 +Decide: -15 +Decide: -9 +Decide: -11 +Decide: -14 +Decide: -16 +Decide: -18 +Decide: -23 +Decide: -21 +Decide: -23 +Decide: -18 +Decide: -21 +Decide: -25 +Decide: -16 +Decide: -14 +Decide: -16 +Decide: -11 +Decide: -14 +Decide: -18 +Decide: -8 +Decide: -9 +Decide: -15 +Decide: -11 +Decide: -15 +Decide: -9 +Decide: -11 +Decide: -16 +Decide: -5 +Decide: -6 +Decide: -7 +Decide: -8 +Decide: -9 +Decide: -12 +Decide: -13 +Decide: -15 +Decide: -16 +Decide: -19 +Decide: -22 +Decide: -23 +Decide: -29 +Decide: -26 +Decide: -29 +Decide: -23 +Decide: -26 +Decide: -30 +Decide: -20 +Decide: -22 +Decide: -23 +Decide: -29 +Decide: -27 +Decide: -29 +Decide: -23 +Decide: -27 +Decide: -30 +Decide: -22 +Decide: -19 +Decide: -20 +Decide: -22 +Decide: -26 +Decide: -29 +Decide: -27 +Decide: -29 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -22 +Decide: -20 +Decide: -22 +Decide: -16 +Decide: -19 +Decide: -20 +Decide: -23 +Decide: -26 +Decide: -30 +Decide: -27 +Decide: -30 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -23 +Decide: -20 +Decide: -23 +Decide: -19 +Decide: -20 +Decide: -26 +Decide: -14 +Decide: -15 +Decide: -16 +Decide: -19 +Decide: -22 +Decide: -23 +Decide: -29 +Decide: -26 +Decide: -29 +Decide: -23 +Decide: -26 +Decide: -30 +Decide: -21 +Decide: -22 +Decide: -23 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -23 +Decide: -28 +Decide: -30 +Decide: -22 +Decide: -19 +Decide: -21 +Decide: -22 +Decide: -26 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -26 +Decide: -28 +Decide: -33 +Decide: -22 +Decide: -21 +Decide: -22 +Decide: -16 +Decide: -19 +Decide: -21 +Decide: -23 +Decide: -26 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -26 +Decide: -28 +Decide: -33 +Decide: -23 +Decide: -21 +Decide: -23 +Decide: -19 +Decide: -21 +Decide: -26 +Decide: -15 +Decide: -16 +Decide: -22 +Decide: -19 +Decide: -22 +Decide: -16 +Decide: -19 +Decide: -23 +Decide: -13 +Decide: -14 +Decide: -15 +Decide: -16 +Decide: -20 +Decide: -22 +Decide: -23 +Decide: -29 +Decide: -27 +Decide: -29 +Decide: -23 +Decide: -27 +Decide: -30 +Decide: -21 +Decide: -22 +Decide: -23 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -23 +Decide: -28 +Decide: -30 +Decide: -22 +Decide: -20 +Decide: -21 +Decide: -22 +Decide: -27 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -22 +Decide: -21 +Decide: -22 +Decide: -16 +Decide: -20 +Decide: -21 +Decide: -23 +Decide: -27 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -23 +Decide: -21 +Decide: -23 +Decide: -20 +Decide: -21 +Decide: -27 +Decide: -15 +Decide: -16 +Decide: -22 +Decide: -20 +Decide: -22 +Decide: -16 +Decide: -20 +Decide: -23 +Decide: -14 +Decide: -15 +Decide: -16 +Decide: -22 +Decide: -21 +Decide: -22 +Decide: -16 +Decide: -21 +Decide: -23 +Decide: -15 +Decide: -12 +Decide: -13 +Decide: -14 +Decide: -15 +Decide: -19 +Decide: -20 +Decide: -22 +Decide: -26 +Decide: -29 +Decide: -27 +Decide: -29 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -21 +Decide: -22 +Decide: -26 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -26 +Decide: -28 +Decide: -33 +Decide: -22 +Decide: -20 +Decide: -21 +Decide: -22 +Decide: -27 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -22 +Decide: -21 +Decide: -22 +Decide: -19 +Decide: -20 +Decide: -21 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -28 +Decide: -33 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -26 +Decide: -21 +Decide: -26 +Decide: -20 +Decide: -21 +Decide: -27 +Decide: -15 +Decide: -19 +Decide: -22 +Decide: -20 +Decide: -22 +Decide: -19 +Decide: -20 +Decide: -26 +Decide: -14 +Decide: -15 +Decide: -19 +Decide: -22 +Decide: -21 +Decide: -22 +Decide: -19 +Decide: -21 +Decide: -26 +Decide: -15 +Decide: -13 +Decide: -14 +Decide: -15 +Decide: -20 +Decide: -22 +Decide: -21 +Decide: -22 +Decide: -20 +Decide: -21 +Decide: -27 +Decide: -15 +Decide: -14 +Decide: -15 +Decide: -9 +Decide: -12 +Decide: -13 +Decide: -14 +Decide: -16 +Decide: -19 +Decide: -20 +Decide: -23 +Decide: -26 +Decide: -30 +Decide: -27 +Decide: -30 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -21 +Decide: -23 +Decide: -26 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -26 +Decide: -28 +Decide: -33 +Decide: -23 +Decide: -20 +Decide: -21 +Decide: -23 +Decide: -27 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -23 +Decide: -21 +Decide: -23 +Decide: -19 +Decide: -20 +Decide: -21 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -28 +Decide: -33 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -26 +Decide: -21 +Decide: -26 +Decide: -20 +Decide: -21 +Decide: -27 +Decide: -16 +Decide: -19 +Decide: -23 +Decide: -20 +Decide: -23 +Decide: -19 +Decide: -20 +Decide: -26 +Decide: -14 +Decide: -16 +Decide: -19 +Decide: -23 +Decide: -21 +Decide: -23 +Decide: -19 +Decide: -21 +Decide: -26 +Decide: -16 +Decide: -13 +Decide: -14 +Decide: -16 +Decide: -20 +Decide: -23 +Decide: -21 +Decide: -23 +Decide: -20 +Decide: -21 +Decide: -27 +Decide: -16 +Decide: -14 +Decide: -16 +Decide: -12 +Decide: -13 +Decide: -14 +Decide: -19 +Decide: -20 +Decide: -26 +Decide: -21 +Decide: -26 +Decide: -20 +Decide: -21 +Decide: -27 +Decide: -19 +Decide: -14 +Decide: -19 +Decide: -13 +Decide: -14 +Decide: -20 +Decide: -8 +Decide: -9 +Decide: -12 +Decide: -15 +Decide: -16 +Decide: -22 +Decide: -19 +Decide: -22 +Decide: -16 +Decide: -19 +Decide: -23 +Decide: -13 +Decide: -15 +Decide: -16 +Decide: -22 +Decide: -20 +Decide: -22 +Decide: -16 +Decide: -20 +Decide: -23 +Decide: -15 +Decide: -12 +Decide: -13 +Decide: -15 +Decide: -19 +Decide: -22 +Decide: -20 +Decide: -22 +Decide: -19 +Decide: -20 +Decide: -26 +Decide: -15 +Decide: -13 +Decide: -15 +Decide: -9 +Decide: -12 +Decide: -13 +Decide: -16 +Decide: -19 +Decide: -23 +Decide: -20 +Decide: -23 +Decide: -19 +Decide: -20 +Decide: -26 +Decide: -16 +Decide: -13 +Decide: -16 +Decide: -12 +Decide: -13 +Decide: -19 +Decide: -7 +Decide: -8 +Decide: -9 +Decide: -12 +Decide: -15 +Decide: -16 +Decide: -22 +Decide: -19 +Decide: -22 +Decide: -16 +Decide: -19 +Decide: -23 +Decide: -14 +Decide: -15 +Decide: -16 +Decide: -22 +Decide: -21 +Decide: -22 +Decide: -16 +Decide: -21 +Decide: -23 +Decide: -15 +Decide: -12 +Decide: -14 +Decide: -15 +Decide: -19 +Decide: -22 +Decide: -21 +Decide: -22 +Decide: -19 +Decide: -21 +Decide: -26 +Decide: -15 +Decide: -14 +Decide: -15 +Decide: -9 +Decide: -12 +Decide: -14 +Decide: -16 +Decide: -19 +Decide: -23 +Decide: -21 +Decide: -23 +Decide: -19 +Decide: -21 +Decide: -26 +Decide: -16 +Decide: -14 +Decide: -16 +Decide: -12 +Decide: -14 +Decide: -19 +Decide: -8 +Decide: -9 +Decide: -15 +Decide: -12 +Decide: -15 +Decide: -9 +Decide: -12 +Decide: -16 +Decide: -6 +Decide: -7 +Decide: -8 +Decide: -9 +Decide: -13 +Decide: -15 +Decide: -16 +Decide: -22 +Decide: -20 +Decide: -22 +Decide: -16 +Decide: -20 +Decide: -23 +Decide: -14 +Decide: -15 +Decide: -16 +Decide: -22 +Decide: -21 +Decide: -22 +Decide: -16 +Decide: -21 +Decide: -23 +Decide: -15 +Decide: -13 +Decide: -14 +Decide: -15 +Decide: -20 +Decide: -22 +Decide: -21 +Decide: -22 +Decide: -20 +Decide: -21 +Decide: -27 +Decide: -15 +Decide: -14 +Decide: -15 +Decide: -9 +Decide: -13 +Decide: -14 +Decide: -16 +Decide: -20 +Decide: -23 +Decide: -21 +Decide: -23 +Decide: -20 +Decide: -21 +Decide: -27 +Decide: -16 +Decide: -14 +Decide: -16 +Decide: -13 +Decide: -14 +Decide: -20 +Decide: -8 +Decide: -9 +Decide: -15 +Decide: -13 +Decide: -15 +Decide: -9 +Decide: -13 +Decide: -16 +Decide: -7 +Decide: -8 +Decide: -9 +Decide: -15 +Decide: -14 +Decide: -15 +Decide: -9 +Decide: -14 +Decide: -16 +Decide: -8 +Decide: -3 +Decide: -4 +Decide: -5 +Decide: -6 +Decide: -7 +Decide: -8 +Decide: -10 +Decide: -11 +Decide: -12 +Decide: -13 +Decide: -15 +Decide: -17 +Decide: -18 +Decide: -19 +Decide: -22 +Decide: -24 +Decide: -25 +Decide: -29 +Decide: -31 +Decide: -36 +Decide: -32 +Decide: -36 +Decide: -31 +Decide: -32 +Decide: -38 +Decide: -26 +Decide: -29 +Decide: -31 +Decide: -36 +Decide: -33 +Decide: -36 +Decide: -31 +Decide: -33 +Decide: -38 +Decide: -29 +Decide: -25 +Decide: -26 +Decide: -29 +Decide: -32 +Decide: -36 +Decide: -33 +Decide: -36 +Decide: -32 +Decide: -33 +Decide: -39 +Decide: -29 +Decide: -26 +Decide: -29 +Decide: -24 +Decide: -25 +Decide: -26 +Decide: -31 +Decide: -32 +Decide: -38 +Decide: -33 +Decide: -38 +Decide: -32 +Decide: -33 +Decide: -39 +Decide: -31 +Decide: -26 +Decide: -31 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -20 +Decide: -22 +Decide: -24 +Decide: -25 +Decide: -29 +Decide: -31 +Decide: -36 +Decide: -32 +Decide: -36 +Decide: -31 +Decide: -32 +Decide: -38 +Decide: -27 +Decide: -29 +Decide: -31 +Decide: -36 +Decide: -34 +Decide: -36 +Decide: -31 +Decide: -34 +Decide: -38 +Decide: -29 +Decide: -25 +Decide: -27 +Decide: -29 +Decide: -32 +Decide: -36 +Decide: -34 +Decide: -36 +Decide: -32 +Decide: -34 +Decide: -39 +Decide: -29 +Decide: -27 +Decide: -29 +Decide: -24 +Decide: -25 +Decide: -27 +Decide: -31 +Decide: -32 +Decide: -38 +Decide: -34 +Decide: -38 +Decide: -32 +Decide: -34 +Decide: -39 +Decide: -31 +Decide: -27 +Decide: -31 +Decide: -25 +Decide: -27 +Decide: -32 +Decide: -22 +Decide: -24 +Decide: -29 +Decide: -25 +Decide: -29 +Decide: -24 +Decide: -25 +Decide: -31 +Decide: -19 +Decide: -20 +Decide: -22 +Decide: -24 +Decide: -26 +Decide: -29 +Decide: -31 +Decide: -36 +Decide: -33 +Decide: -36 +Decide: -31 +Decide: -33 +Decide: -38 +Decide: -27 +Decide: -29 +Decide: -31 +Decide: -36 +Decide: -34 +Decide: -36 +Decide: -31 +Decide: -34 +Decide: -38 +Decide: -29 +Decide: -26 +Decide: -27 +Decide: -29 +Decide: -33 +Decide: -36 +Decide: -34 +Decide: -36 +Decide: -33 +Decide: -34 +Decide: -40 +Decide: -29 +Decide: -27 +Decide: -29 +Decide: -24 +Decide: -26 +Decide: -27 +Decide: -31 +Decide: -33 +Decide: -38 +Decide: -34 +Decide: -38 +Decide: -33 +Decide: -34 +Decide: -40 +Decide: -31 +Decide: -27 +Decide: -31 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -22 +Decide: -24 +Decide: -29 +Decide: -26 +Decide: -29 +Decide: -24 +Decide: -26 +Decide: -31 +Decide: -20 +Decide: -22 +Decide: -24 +Decide: -29 +Decide: -27 +Decide: -29 +Decide: -24 +Decide: -27 +Decide: -31 +Decide: -22 +Decide: -18 +Decide: -19 +Decide: -20 +Decide: -22 +Decide: -25 +Decide: -26 +Decide: -29 +Decide: -32 +Decide: -36 +Decide: -33 +Decide: -36 +Decide: -32 +Decide: -33 +Decide: -39 +Decide: -27 +Decide: -29 +Decide: -32 +Decide: -36 +Decide: -34 +Decide: -36 +Decide: -32 +Decide: -34 +Decide: -39 +Decide: -29 +Decide: -26 +Decide: -27 +Decide: -29 +Decide: -33 +Decide: -36 +Decide: -34 +Decide: -36 +Decide: -33 +Decide: -34 +Decide: -40 +Decide: -29 +Decide: -27 +Decide: -29 +Decide: -25 +Decide: -26 +Decide: -27 +Decide: -32 +Decide: -33 +Decide: -39 +Decide: -34 +Decide: -39 +Decide: -33 +Decide: -34 +Decide: -40 +Decide: -32 +Decide: -27 +Decide: -32 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -22 +Decide: -25 +Decide: -29 +Decide: -26 +Decide: -29 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -20 +Decide: -22 +Decide: -25 +Decide: -29 +Decide: -27 +Decide: -29 +Decide: -25 +Decide: -27 +Decide: -32 +Decide: -22 +Decide: -19 +Decide: -20 +Decide: -22 +Decide: -26 +Decide: -29 +Decide: -27 +Decide: -29 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -22 +Decide: -20 +Decide: -22 +Decide: -17 +Decide: -18 +Decide: -19 +Decide: -20 +Decide: -24 +Decide: -25 +Decide: -26 +Decide: -31 +Decide: -32 +Decide: -38 +Decide: -33 +Decide: -38 +Decide: -32 +Decide: -33 +Decide: -39 +Decide: -27 +Decide: -31 +Decide: -32 +Decide: -38 +Decide: -34 +Decide: -38 +Decide: -32 +Decide: -34 +Decide: -39 +Decide: -31 +Decide: -26 +Decide: -27 +Decide: -31 +Decide: -33 +Decide: -38 +Decide: -34 +Decide: -38 +Decide: -33 +Decide: -34 +Decide: -40 +Decide: -31 +Decide: -27 +Decide: -31 +Decide: -25 +Decide: -26 +Decide: -27 +Decide: -32 +Decide: -33 +Decide: -39 +Decide: -34 +Decide: -39 +Decide: -33 +Decide: -34 +Decide: -40 +Decide: -32 +Decide: -27 +Decide: -32 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -24 +Decide: -25 +Decide: -31 +Decide: -26 +Decide: -31 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -20 +Decide: -24 +Decide: -25 +Decide: -31 +Decide: -27 +Decide: -31 +Decide: -25 +Decide: -27 +Decide: -32 +Decide: -24 +Decide: -19 +Decide: -20 +Decide: -24 +Decide: -26 +Decide: -31 +Decide: -27 +Decide: -31 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -24 +Decide: -20 +Decide: -24 +Decide: -18 +Decide: -19 +Decide: -20 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -27 +Decide: -32 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -25 +Decide: -20 +Decide: -25 +Decide: -19 +Decide: -20 +Decide: -26 +Decide: -14 +Decide: -15 +Decide: -17 +Decide: -18 +Decide: -19 +Decide: -22 +Decide: -24 +Decide: -25 +Decide: -29 +Decide: -31 +Decide: -36 +Decide: -32 +Decide: -36 +Decide: -31 +Decide: -32 +Decide: -38 +Decide: -26 +Decide: -29 +Decide: -31 +Decide: -36 +Decide: -33 +Decide: -36 +Decide: -31 +Decide: -33 +Decide: -38 +Decide: -29 +Decide: -25 +Decide: -26 +Decide: -29 +Decide: -32 +Decide: -36 +Decide: -33 +Decide: -36 +Decide: -32 +Decide: -33 +Decide: -39 +Decide: -29 +Decide: -26 +Decide: -29 +Decide: -24 +Decide: -25 +Decide: -26 +Decide: -31 +Decide: -32 +Decide: -38 +Decide: -33 +Decide: -38 +Decide: -32 +Decide: -33 +Decide: -39 +Decide: -31 +Decide: -26 +Decide: -31 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -21 +Decide: -22 +Decide: -24 +Decide: -25 +Decide: -29 +Decide: -31 +Decide: -36 +Decide: -32 +Decide: -36 +Decide: -31 +Decide: -32 +Decide: -38 +Decide: -28 +Decide: -29 +Decide: -31 +Decide: -36 +Decide: -35 +Decide: -36 +Decide: -31 +Decide: -35 +Decide: -38 +Decide: -29 +Decide: -25 +Decide: -28 +Decide: -29 +Decide: -32 +Decide: -36 +Decide: -35 +Decide: -36 +Decide: -32 +Decide: -35 +Decide: -39 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -24 +Decide: -25 +Decide: -28 +Decide: -31 +Decide: -32 +Decide: -38 +Decide: -35 +Decide: -38 +Decide: -32 +Decide: -35 +Decide: -39 +Decide: -31 +Decide: -28 +Decide: -31 +Decide: -25 +Decide: -28 +Decide: -32 +Decide: -22 +Decide: -24 +Decide: -29 +Decide: -25 +Decide: -29 +Decide: -24 +Decide: -25 +Decide: -31 +Decide: -19 +Decide: -21 +Decide: -22 +Decide: -24 +Decide: -26 +Decide: -29 +Decide: -31 +Decide: -36 +Decide: -33 +Decide: -36 +Decide: -31 +Decide: -33 +Decide: -38 +Decide: -28 +Decide: -29 +Decide: -31 +Decide: -36 +Decide: -35 +Decide: -36 +Decide: -31 +Decide: -35 +Decide: -38 +Decide: -29 +Decide: -26 +Decide: -28 +Decide: -29 +Decide: -33 +Decide: -36 +Decide: -35 +Decide: -36 +Decide: -33 +Decide: -35 +Decide: -40 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -24 +Decide: -26 +Decide: -28 +Decide: -31 +Decide: -33 +Decide: -38 +Decide: -35 +Decide: -38 +Decide: -33 +Decide: -35 +Decide: -40 +Decide: -31 +Decide: -28 +Decide: -31 +Decide: -26 +Decide: -28 +Decide: -33 +Decide: -22 +Decide: -24 +Decide: -29 +Decide: -26 +Decide: -29 +Decide: -24 +Decide: -26 +Decide: -31 +Decide: -21 +Decide: -22 +Decide: -24 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -24 +Decide: -28 +Decide: -31 +Decide: -22 +Decide: -18 +Decide: -19 +Decide: -21 +Decide: -22 +Decide: -25 +Decide: -26 +Decide: -29 +Decide: -32 +Decide: -36 +Decide: -33 +Decide: -36 +Decide: -32 +Decide: -33 +Decide: -39 +Decide: -28 +Decide: -29 +Decide: -32 +Decide: -36 +Decide: -35 +Decide: -36 +Decide: -32 +Decide: -35 +Decide: -39 +Decide: -29 +Decide: -26 +Decide: -28 +Decide: -29 +Decide: -33 +Decide: -36 +Decide: -35 +Decide: -36 +Decide: -33 +Decide: -35 +Decide: -40 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -25 +Decide: -26 +Decide: -28 +Decide: -32 +Decide: -33 +Decide: -39 +Decide: -35 +Decide: -39 +Decide: -33 +Decide: -35 +Decide: -40 +Decide: -32 +Decide: -28 +Decide: -32 +Decide: -26 +Decide: -28 +Decide: -33 +Decide: -22 +Decide: -25 +Decide: -29 +Decide: -26 +Decide: -29 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -21 +Decide: -22 +Decide: -25 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -25 +Decide: -28 +Decide: -32 +Decide: -22 +Decide: -19 +Decide: -21 +Decide: -22 +Decide: -26 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -26 +Decide: -28 +Decide: -33 +Decide: -22 +Decide: -21 +Decide: -22 +Decide: -17 +Decide: -18 +Decide: -19 +Decide: -21 +Decide: -24 +Decide: -25 +Decide: -26 +Decide: -31 +Decide: -32 +Decide: -38 +Decide: -33 +Decide: -38 +Decide: -32 +Decide: -33 +Decide: -39 +Decide: -28 +Decide: -31 +Decide: -32 +Decide: -38 +Decide: -35 +Decide: -38 +Decide: -32 +Decide: -35 +Decide: -39 +Decide: -31 +Decide: -26 +Decide: -28 +Decide: -31 +Decide: -33 +Decide: -38 +Decide: -35 +Decide: -38 +Decide: -33 +Decide: -35 +Decide: -40 +Decide: -31 +Decide: -28 +Decide: -31 +Decide: -25 +Decide: -26 +Decide: -28 +Decide: -32 +Decide: -33 +Decide: -39 +Decide: -35 +Decide: -39 +Decide: -33 +Decide: -35 +Decide: -40 +Decide: -32 +Decide: -28 +Decide: -32 +Decide: -26 +Decide: -28 +Decide: -33 +Decide: -24 +Decide: -25 +Decide: -31 +Decide: -26 +Decide: -31 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -21 +Decide: -24 +Decide: -25 +Decide: -31 +Decide: -28 +Decide: -31 +Decide: -25 +Decide: -28 +Decide: -32 +Decide: -24 +Decide: -19 +Decide: -21 +Decide: -24 +Decide: -26 +Decide: -31 +Decide: -28 +Decide: -31 +Decide: -26 +Decide: -28 +Decide: -33 +Decide: -24 +Decide: -21 +Decide: -24 +Decide: -18 +Decide: -19 +Decide: -21 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -28 +Decide: -32 +Decide: -26 +Decide: -28 +Decide: -33 +Decide: -25 +Decide: -21 +Decide: -25 +Decide: -19 +Decide: -21 +Decide: -26 +Decide: -15 +Decide: -17 +Decide: -18 +Decide: -22 +Decide: -24 +Decide: -29 +Decide: -25 +Decide: -29 +Decide: -24 +Decide: -25 +Decide: -31 +Decide: -19 +Decide: -22 +Decide: -24 +Decide: -29 +Decide: -26 +Decide: -29 +Decide: -24 +Decide: -26 +Decide: -31 +Decide: -22 +Decide: -18 +Decide: -19 +Decide: -22 +Decide: -25 +Decide: -29 +Decide: -26 +Decide: -29 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -22 +Decide: -19 +Decide: -22 +Decide: -17 +Decide: -18 +Decide: -19 +Decide: -24 +Decide: -25 +Decide: -31 +Decide: -26 +Decide: -31 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -24 +Decide: -19 +Decide: -24 +Decide: -18 +Decide: -19 +Decide: -25 +Decide: -13 +Decide: -14 +Decide: -15 +Decide: -17 +Decide: -18 +Decide: -20 +Decide: -22 +Decide: -24 +Decide: -25 +Decide: -29 +Decide: -31 +Decide: -36 +Decide: -32 +Decide: -36 +Decide: -31 +Decide: -32 +Decide: -38 +Decide: -27 +Decide: -29 +Decide: -31 +Decide: -36 +Decide: -34 +Decide: -36 +Decide: -31 +Decide: -34 +Decide: -38 +Decide: -29 +Decide: -25 +Decide: -27 +Decide: -29 +Decide: -32 +Decide: -36 +Decide: -34 +Decide: -36 +Decide: -32 +Decide: -34 +Decide: -39 +Decide: -29 +Decide: -27 +Decide: -29 +Decide: -24 +Decide: -25 +Decide: -27 +Decide: -31 +Decide: -32 +Decide: -38 +Decide: -34 +Decide: -38 +Decide: -32 +Decide: -34 +Decide: -39 +Decide: -31 +Decide: -27 +Decide: -31 +Decide: -25 +Decide: -27 +Decide: -32 +Decide: -21 +Decide: -22 +Decide: -24 +Decide: -25 +Decide: -29 +Decide: -31 +Decide: -36 +Decide: -32 +Decide: -36 +Decide: -31 +Decide: -32 +Decide: -38 +Decide: -28 +Decide: -29 +Decide: -31 +Decide: -36 +Decide: -35 +Decide: -36 +Decide: -31 +Decide: -35 +Decide: -38 +Decide: -29 +Decide: -25 +Decide: -28 +Decide: -29 +Decide: -32 +Decide: -36 +Decide: -35 +Decide: -36 +Decide: -32 +Decide: -35 +Decide: -39 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -24 +Decide: -25 +Decide: -28 +Decide: -31 +Decide: -32 +Decide: -38 +Decide: -35 +Decide: -38 +Decide: -32 +Decide: -35 +Decide: -39 +Decide: -31 +Decide: -28 +Decide: -31 +Decide: -25 +Decide: -28 +Decide: -32 +Decide: -22 +Decide: -24 +Decide: -29 +Decide: -25 +Decide: -29 +Decide: -24 +Decide: -25 +Decide: -31 +Decide: -20 +Decide: -21 +Decide: -22 +Decide: -24 +Decide: -27 +Decide: -29 +Decide: -31 +Decide: -36 +Decide: -34 +Decide: -36 +Decide: -31 +Decide: -34 +Decide: -38 +Decide: -28 +Decide: -29 +Decide: -31 +Decide: -36 +Decide: -35 +Decide: -36 +Decide: -31 +Decide: -35 +Decide: -38 +Decide: -29 +Decide: -27 +Decide: -28 +Decide: -29 +Decide: -34 +Decide: -36 +Decide: -35 +Decide: -36 +Decide: -34 +Decide: -35 +Decide: -41 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -24 +Decide: -27 +Decide: -28 +Decide: -31 +Decide: -34 +Decide: -38 +Decide: -35 +Decide: -38 +Decide: -34 +Decide: -35 +Decide: -41 +Decide: -31 +Decide: -28 +Decide: -31 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -22 +Decide: -24 +Decide: -29 +Decide: -27 +Decide: -29 +Decide: -24 +Decide: -27 +Decide: -31 +Decide: -21 +Decide: -22 +Decide: -24 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -24 +Decide: -28 +Decide: -31 +Decide: -22 +Decide: -18 +Decide: -20 +Decide: -21 +Decide: -22 +Decide: -25 +Decide: -27 +Decide: -29 +Decide: -32 +Decide: -36 +Decide: -34 +Decide: -36 +Decide: -32 +Decide: -34 +Decide: -39 +Decide: -28 +Decide: -29 +Decide: -32 +Decide: -36 +Decide: -35 +Decide: -36 +Decide: -32 +Decide: -35 +Decide: -39 +Decide: -29 +Decide: -27 +Decide: -28 +Decide: -29 +Decide: -34 +Decide: -36 +Decide: -35 +Decide: -36 +Decide: -34 +Decide: -35 +Decide: -41 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -25 +Decide: -27 +Decide: -28 +Decide: -32 +Decide: -34 +Decide: -39 +Decide: -35 +Decide: -39 +Decide: -34 +Decide: -35 +Decide: -41 +Decide: -32 +Decide: -28 +Decide: -32 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -22 +Decide: -25 +Decide: -29 +Decide: -27 +Decide: -29 +Decide: -25 +Decide: -27 +Decide: -32 +Decide: -21 +Decide: -22 +Decide: -25 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -25 +Decide: -28 +Decide: -32 +Decide: -22 +Decide: -20 +Decide: -21 +Decide: -22 +Decide: -27 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -22 +Decide: -21 +Decide: -22 +Decide: -17 +Decide: -18 +Decide: -20 +Decide: -21 +Decide: -24 +Decide: -25 +Decide: -27 +Decide: -31 +Decide: -32 +Decide: -38 +Decide: -34 +Decide: -38 +Decide: -32 +Decide: -34 +Decide: -39 +Decide: -28 +Decide: -31 +Decide: -32 +Decide: -38 +Decide: -35 +Decide: -38 +Decide: -32 +Decide: -35 +Decide: -39 +Decide: -31 +Decide: -27 +Decide: -28 +Decide: -31 +Decide: -34 +Decide: -38 +Decide: -35 +Decide: -38 +Decide: -34 +Decide: -35 +Decide: -41 +Decide: -31 +Decide: -28 +Decide: -31 +Decide: -25 +Decide: -27 +Decide: -28 +Decide: -32 +Decide: -34 +Decide: -39 +Decide: -35 +Decide: -39 +Decide: -34 +Decide: -35 +Decide: -41 +Decide: -32 +Decide: -28 +Decide: -32 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -24 +Decide: -25 +Decide: -31 +Decide: -27 +Decide: -31 +Decide: -25 +Decide: -27 +Decide: -32 +Decide: -21 +Decide: -24 +Decide: -25 +Decide: -31 +Decide: -28 +Decide: -31 +Decide: -25 +Decide: -28 +Decide: -32 +Decide: -24 +Decide: -20 +Decide: -21 +Decide: -24 +Decide: -27 +Decide: -31 +Decide: -28 +Decide: -31 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -24 +Decide: -21 +Decide: -24 +Decide: -18 +Decide: -20 +Decide: -21 +Decide: -25 +Decide: -27 +Decide: -32 +Decide: -28 +Decide: -32 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -25 +Decide: -21 +Decide: -25 +Decide: -20 +Decide: -21 +Decide: -27 +Decide: -15 +Decide: -17 +Decide: -18 +Decide: -22 +Decide: -24 +Decide: -29 +Decide: -25 +Decide: -29 +Decide: -24 +Decide: -25 +Decide: -31 +Decide: -20 +Decide: -22 +Decide: -24 +Decide: -29 +Decide: -27 +Decide: -29 +Decide: -24 +Decide: -27 +Decide: -31 +Decide: -22 +Decide: -18 +Decide: -20 +Decide: -22 +Decide: -25 +Decide: -29 +Decide: -27 +Decide: -29 +Decide: -25 +Decide: -27 +Decide: -32 +Decide: -22 +Decide: -20 +Decide: -22 +Decide: -17 +Decide: -18 +Decide: -20 +Decide: -24 +Decide: -25 +Decide: -31 +Decide: -27 +Decide: -31 +Decide: -25 +Decide: -27 +Decide: -32 +Decide: -24 +Decide: -20 +Decide: -24 +Decide: -18 +Decide: -20 +Decide: -25 +Decide: -14 +Decide: -15 +Decide: -17 +Decide: -18 +Decide: -22 +Decide: -24 +Decide: -29 +Decide: -25 +Decide: -29 +Decide: -24 +Decide: -25 +Decide: -31 +Decide: -21 +Decide: -22 +Decide: -24 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -24 +Decide: -28 +Decide: -31 +Decide: -22 +Decide: -18 +Decide: -21 +Decide: -22 +Decide: -25 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -25 +Decide: -28 +Decide: -32 +Decide: -22 +Decide: -21 +Decide: -22 +Decide: -17 +Decide: -18 +Decide: -21 +Decide: -24 +Decide: -25 +Decide: -31 +Decide: -28 +Decide: -31 +Decide: -25 +Decide: -28 +Decide: -32 +Decide: -24 +Decide: -21 +Decide: -24 +Decide: -18 +Decide: -21 +Decide: -25 +Decide: -15 +Decide: -17 +Decide: -22 +Decide: -18 +Decide: -22 +Decide: -17 +Decide: -18 +Decide: -24 +Decide: -12 +Decide: -13 +Decide: -14 +Decide: -15 +Decide: -17 +Decide: -19 +Decide: -20 +Decide: -22 +Decide: -24 +Decide: -26 +Decide: -29 +Decide: -31 +Decide: -36 +Decide: -33 +Decide: -36 +Decide: -31 +Decide: -33 +Decide: -38 +Decide: -27 +Decide: -29 +Decide: -31 +Decide: -36 +Decide: -34 +Decide: -36 +Decide: -31 +Decide: -34 +Decide: -38 +Decide: -29 +Decide: -26 +Decide: -27 +Decide: -29 +Decide: -33 +Decide: -36 +Decide: -34 +Decide: -36 +Decide: -33 +Decide: -34 +Decide: -40 +Decide: -29 +Decide: -27 +Decide: -29 +Decide: -24 +Decide: -26 +Decide: -27 +Decide: -31 +Decide: -33 +Decide: -38 +Decide: -34 +Decide: -38 +Decide: -33 +Decide: -34 +Decide: -40 +Decide: -31 +Decide: -27 +Decide: -31 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -21 +Decide: -22 +Decide: -24 +Decide: -26 +Decide: -29 +Decide: -31 +Decide: -36 +Decide: -33 +Decide: -36 +Decide: -31 +Decide: -33 +Decide: -38 +Decide: -28 +Decide: -29 +Decide: -31 +Decide: -36 +Decide: -35 +Decide: -36 +Decide: -31 +Decide: -35 +Decide: -38 +Decide: -29 +Decide: -26 +Decide: -28 +Decide: -29 +Decide: -33 +Decide: -36 +Decide: -35 +Decide: -36 +Decide: -33 +Decide: -35 +Decide: -40 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -24 +Decide: -26 +Decide: -28 +Decide: -31 +Decide: -33 +Decide: -38 +Decide: -35 +Decide: -38 +Decide: -33 +Decide: -35 +Decide: -40 +Decide: -31 +Decide: -28 +Decide: -31 +Decide: -26 +Decide: -28 +Decide: -33 +Decide: -22 +Decide: -24 +Decide: -29 +Decide: -26 +Decide: -29 +Decide: -24 +Decide: -26 +Decide: -31 +Decide: -20 +Decide: -21 +Decide: -22 +Decide: -24 +Decide: -27 +Decide: -29 +Decide: -31 +Decide: -36 +Decide: -34 +Decide: -36 +Decide: -31 +Decide: -34 +Decide: -38 +Decide: -28 +Decide: -29 +Decide: -31 +Decide: -36 +Decide: -35 +Decide: -36 +Decide: -31 +Decide: -35 +Decide: -38 +Decide: -29 +Decide: -27 +Decide: -28 +Decide: -29 +Decide: -34 +Decide: -36 +Decide: -35 +Decide: -36 +Decide: -34 +Decide: -35 +Decide: -41 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -24 +Decide: -27 +Decide: -28 +Decide: -31 +Decide: -34 +Decide: -38 +Decide: -35 +Decide: -38 +Decide: -34 +Decide: -35 +Decide: -41 +Decide: -31 +Decide: -28 +Decide: -31 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -22 +Decide: -24 +Decide: -29 +Decide: -27 +Decide: -29 +Decide: -24 +Decide: -27 +Decide: -31 +Decide: -21 +Decide: -22 +Decide: -24 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -24 +Decide: -28 +Decide: -31 +Decide: -22 +Decide: -19 +Decide: -20 +Decide: -21 +Decide: -22 +Decide: -26 +Decide: -27 +Decide: -29 +Decide: -33 +Decide: -36 +Decide: -34 +Decide: -36 +Decide: -33 +Decide: -34 +Decide: -40 +Decide: -28 +Decide: -29 +Decide: -33 +Decide: -36 +Decide: -35 +Decide: -36 +Decide: -33 +Decide: -35 +Decide: -40 +Decide: -29 +Decide: -27 +Decide: -28 +Decide: -29 +Decide: -34 +Decide: -36 +Decide: -35 +Decide: -36 +Decide: -34 +Decide: -35 +Decide: -41 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -26 +Decide: -27 +Decide: -28 +Decide: -33 +Decide: -34 +Decide: -40 +Decide: -35 +Decide: -40 +Decide: -34 +Decide: -35 +Decide: -41 +Decide: -33 +Decide: -28 +Decide: -33 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -22 +Decide: -26 +Decide: -29 +Decide: -27 +Decide: -29 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -21 +Decide: -22 +Decide: -26 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -26 +Decide: -28 +Decide: -33 +Decide: -22 +Decide: -20 +Decide: -21 +Decide: -22 +Decide: -27 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -22 +Decide: -21 +Decide: -22 +Decide: -17 +Decide: -19 +Decide: -20 +Decide: -21 +Decide: -24 +Decide: -26 +Decide: -27 +Decide: -31 +Decide: -33 +Decide: -38 +Decide: -34 +Decide: -38 +Decide: -33 +Decide: -34 +Decide: -40 +Decide: -28 +Decide: -31 +Decide: -33 +Decide: -38 +Decide: -35 +Decide: -38 +Decide: -33 +Decide: -35 +Decide: -40 +Decide: -31 +Decide: -27 +Decide: -28 +Decide: -31 +Decide: -34 +Decide: -38 +Decide: -35 +Decide: -38 +Decide: -34 +Decide: -35 +Decide: -41 +Decide: -31 +Decide: -28 +Decide: -31 +Decide: -26 +Decide: -27 +Decide: -28 +Decide: -33 +Decide: -34 +Decide: -40 +Decide: -35 +Decide: -40 +Decide: -34 +Decide: -35 +Decide: -41 +Decide: -33 +Decide: -28 +Decide: -33 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -24 +Decide: -26 +Decide: -31 +Decide: -27 +Decide: -31 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -21 +Decide: -24 +Decide: -26 +Decide: -31 +Decide: -28 +Decide: -31 +Decide: -26 +Decide: -28 +Decide: -33 +Decide: -24 +Decide: -20 +Decide: -21 +Decide: -24 +Decide: -27 +Decide: -31 +Decide: -28 +Decide: -31 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -24 +Decide: -21 +Decide: -24 +Decide: -19 +Decide: -20 +Decide: -21 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -28 +Decide: -33 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -26 +Decide: -21 +Decide: -26 +Decide: -20 +Decide: -21 +Decide: -27 +Decide: -15 +Decide: -17 +Decide: -19 +Decide: -22 +Decide: -24 +Decide: -29 +Decide: -26 +Decide: -29 +Decide: -24 +Decide: -26 +Decide: -31 +Decide: -20 +Decide: -22 +Decide: -24 +Decide: -29 +Decide: -27 +Decide: -29 +Decide: -24 +Decide: -27 +Decide: -31 +Decide: -22 +Decide: -19 +Decide: -20 +Decide: -22 +Decide: -26 +Decide: -29 +Decide: -27 +Decide: -29 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -22 +Decide: -20 +Decide: -22 +Decide: -17 +Decide: -19 +Decide: -20 +Decide: -24 +Decide: -26 +Decide: -31 +Decide: -27 +Decide: -31 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -24 +Decide: -20 +Decide: -24 +Decide: -19 +Decide: -20 +Decide: -26 +Decide: -14 +Decide: -15 +Decide: -17 +Decide: -19 +Decide: -22 +Decide: -24 +Decide: -29 +Decide: -26 +Decide: -29 +Decide: -24 +Decide: -26 +Decide: -31 +Decide: -21 +Decide: -22 +Decide: -24 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -24 +Decide: -28 +Decide: -31 +Decide: -22 +Decide: -19 +Decide: -21 +Decide: -22 +Decide: -26 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -26 +Decide: -28 +Decide: -33 +Decide: -22 +Decide: -21 +Decide: -22 +Decide: -17 +Decide: -19 +Decide: -21 +Decide: -24 +Decide: -26 +Decide: -31 +Decide: -28 +Decide: -31 +Decide: -26 +Decide: -28 +Decide: -33 +Decide: -24 +Decide: -21 +Decide: -24 +Decide: -19 +Decide: -21 +Decide: -26 +Decide: -15 +Decide: -17 +Decide: -22 +Decide: -19 +Decide: -22 +Decide: -17 +Decide: -19 +Decide: -24 +Decide: -13 +Decide: -14 +Decide: -15 +Decide: -17 +Decide: -20 +Decide: -22 +Decide: -24 +Decide: -29 +Decide: -27 +Decide: -29 +Decide: -24 +Decide: -27 +Decide: -31 +Decide: -21 +Decide: -22 +Decide: -24 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -24 +Decide: -28 +Decide: -31 +Decide: -22 +Decide: -20 +Decide: -21 +Decide: -22 +Decide: -27 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -22 +Decide: -21 +Decide: -22 +Decide: -17 +Decide: -20 +Decide: -21 +Decide: -24 +Decide: -27 +Decide: -31 +Decide: -28 +Decide: -31 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -24 +Decide: -21 +Decide: -24 +Decide: -20 +Decide: -21 +Decide: -27 +Decide: -15 +Decide: -17 +Decide: -22 +Decide: -20 +Decide: -22 +Decide: -17 +Decide: -20 +Decide: -24 +Decide: -14 +Decide: -15 +Decide: -17 +Decide: -22 +Decide: -21 +Decide: -22 +Decide: -17 +Decide: -21 +Decide: -24 +Decide: -15 +Decide: -11 +Decide: -12 +Decide: -13 +Decide: -14 +Decide: -15 +Decide: -18 +Decide: -19 +Decide: -20 +Decide: -22 +Decide: -25 +Decide: -26 +Decide: -29 +Decide: -32 +Decide: -36 +Decide: -33 +Decide: -36 +Decide: -32 +Decide: -33 +Decide: -39 +Decide: -27 +Decide: -29 +Decide: -32 +Decide: -36 +Decide: -34 +Decide: -36 +Decide: -32 +Decide: -34 +Decide: -39 +Decide: -29 +Decide: -26 +Decide: -27 +Decide: -29 +Decide: -33 +Decide: -36 +Decide: -34 +Decide: -36 +Decide: -33 +Decide: -34 +Decide: -40 +Decide: -29 +Decide: -27 +Decide: -29 +Decide: -25 +Decide: -26 +Decide: -27 +Decide: -32 +Decide: -33 +Decide: -39 +Decide: -34 +Decide: -39 +Decide: -33 +Decide: -34 +Decide: -40 +Decide: -32 +Decide: -27 +Decide: -32 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -21 +Decide: -22 +Decide: -25 +Decide: -26 +Decide: -29 +Decide: -32 +Decide: -36 +Decide: -33 +Decide: -36 +Decide: -32 +Decide: -33 +Decide: -39 +Decide: -28 +Decide: -29 +Decide: -32 +Decide: -36 +Decide: -35 +Decide: -36 +Decide: -32 +Decide: -35 +Decide: -39 +Decide: -29 +Decide: -26 +Decide: -28 +Decide: -29 +Decide: -33 +Decide: -36 +Decide: -35 +Decide: -36 +Decide: -33 +Decide: -35 +Decide: -40 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -25 +Decide: -26 +Decide: -28 +Decide: -32 +Decide: -33 +Decide: -39 +Decide: -35 +Decide: -39 +Decide: -33 +Decide: -35 +Decide: -40 +Decide: -32 +Decide: -28 +Decide: -32 +Decide: -26 +Decide: -28 +Decide: -33 +Decide: -22 +Decide: -25 +Decide: -29 +Decide: -26 +Decide: -29 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -20 +Decide: -21 +Decide: -22 +Decide: -25 +Decide: -27 +Decide: -29 +Decide: -32 +Decide: -36 +Decide: -34 +Decide: -36 +Decide: -32 +Decide: -34 +Decide: -39 +Decide: -28 +Decide: -29 +Decide: -32 +Decide: -36 +Decide: -35 +Decide: -36 +Decide: -32 +Decide: -35 +Decide: -39 +Decide: -29 +Decide: -27 +Decide: -28 +Decide: -29 +Decide: -34 +Decide: -36 +Decide: -35 +Decide: -36 +Decide: -34 +Decide: -35 +Decide: -41 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -25 +Decide: -27 +Decide: -28 +Decide: -32 +Decide: -34 +Decide: -39 +Decide: -35 +Decide: -39 +Decide: -34 +Decide: -35 +Decide: -41 +Decide: -32 +Decide: -28 +Decide: -32 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -22 +Decide: -25 +Decide: -29 +Decide: -27 +Decide: -29 +Decide: -25 +Decide: -27 +Decide: -32 +Decide: -21 +Decide: -22 +Decide: -25 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -25 +Decide: -28 +Decide: -32 +Decide: -22 +Decide: -19 +Decide: -20 +Decide: -21 +Decide: -22 +Decide: -26 +Decide: -27 +Decide: -29 +Decide: -33 +Decide: -36 +Decide: -34 +Decide: -36 +Decide: -33 +Decide: -34 +Decide: -40 +Decide: -28 +Decide: -29 +Decide: -33 +Decide: -36 +Decide: -35 +Decide: -36 +Decide: -33 +Decide: -35 +Decide: -40 +Decide: -29 +Decide: -27 +Decide: -28 +Decide: -29 +Decide: -34 +Decide: -36 +Decide: -35 +Decide: -36 +Decide: -34 +Decide: -35 +Decide: -41 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -26 +Decide: -27 +Decide: -28 +Decide: -33 +Decide: -34 +Decide: -40 +Decide: -35 +Decide: -40 +Decide: -34 +Decide: -35 +Decide: -41 +Decide: -33 +Decide: -28 +Decide: -33 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -22 +Decide: -26 +Decide: -29 +Decide: -27 +Decide: -29 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -21 +Decide: -22 +Decide: -26 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -26 +Decide: -28 +Decide: -33 +Decide: -22 +Decide: -20 +Decide: -21 +Decide: -22 +Decide: -27 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -22 +Decide: -21 +Decide: -22 +Decide: -18 +Decide: -19 +Decide: -20 +Decide: -21 +Decide: -25 +Decide: -26 +Decide: -27 +Decide: -32 +Decide: -33 +Decide: -39 +Decide: -34 +Decide: -39 +Decide: -33 +Decide: -34 +Decide: -40 +Decide: -28 +Decide: -32 +Decide: -33 +Decide: -39 +Decide: -35 +Decide: -39 +Decide: -33 +Decide: -35 +Decide: -40 +Decide: -32 +Decide: -27 +Decide: -28 +Decide: -32 +Decide: -34 +Decide: -39 +Decide: -35 +Decide: -39 +Decide: -34 +Decide: -35 +Decide: -41 +Decide: -32 +Decide: -28 +Decide: -32 +Decide: -26 +Decide: -27 +Decide: -28 +Decide: -33 +Decide: -34 +Decide: -40 +Decide: -35 +Decide: -40 +Decide: -34 +Decide: -35 +Decide: -41 +Decide: -33 +Decide: -28 +Decide: -33 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -27 +Decide: -32 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -21 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -28 +Decide: -32 +Decide: -26 +Decide: -28 +Decide: -33 +Decide: -25 +Decide: -20 +Decide: -21 +Decide: -25 +Decide: -27 +Decide: -32 +Decide: -28 +Decide: -32 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -25 +Decide: -21 +Decide: -25 +Decide: -19 +Decide: -20 +Decide: -21 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -28 +Decide: -33 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -26 +Decide: -21 +Decide: -26 +Decide: -20 +Decide: -21 +Decide: -27 +Decide: -15 +Decide: -18 +Decide: -19 +Decide: -22 +Decide: -25 +Decide: -29 +Decide: -26 +Decide: -29 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -20 +Decide: -22 +Decide: -25 +Decide: -29 +Decide: -27 +Decide: -29 +Decide: -25 +Decide: -27 +Decide: -32 +Decide: -22 +Decide: -19 +Decide: -20 +Decide: -22 +Decide: -26 +Decide: -29 +Decide: -27 +Decide: -29 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -22 +Decide: -20 +Decide: -22 +Decide: -18 +Decide: -19 +Decide: -20 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -27 +Decide: -32 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -25 +Decide: -20 +Decide: -25 +Decide: -19 +Decide: -20 +Decide: -26 +Decide: -14 +Decide: -15 +Decide: -18 +Decide: -19 +Decide: -22 +Decide: -25 +Decide: -29 +Decide: -26 +Decide: -29 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -21 +Decide: -22 +Decide: -25 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -25 +Decide: -28 +Decide: -32 +Decide: -22 +Decide: -19 +Decide: -21 +Decide: -22 +Decide: -26 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -26 +Decide: -28 +Decide: -33 +Decide: -22 +Decide: -21 +Decide: -22 +Decide: -18 +Decide: -19 +Decide: -21 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -28 +Decide: -32 +Decide: -26 +Decide: -28 +Decide: -33 +Decide: -25 +Decide: -21 +Decide: -25 +Decide: -19 +Decide: -21 +Decide: -26 +Decide: -15 +Decide: -18 +Decide: -22 +Decide: -19 +Decide: -22 +Decide: -18 +Decide: -19 +Decide: -25 +Decide: -13 +Decide: -14 +Decide: -15 +Decide: -18 +Decide: -20 +Decide: -22 +Decide: -25 +Decide: -29 +Decide: -27 +Decide: -29 +Decide: -25 +Decide: -27 +Decide: -32 +Decide: -21 +Decide: -22 +Decide: -25 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -25 +Decide: -28 +Decide: -32 +Decide: -22 +Decide: -20 +Decide: -21 +Decide: -22 +Decide: -27 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -22 +Decide: -21 +Decide: -22 +Decide: -18 +Decide: -20 +Decide: -21 +Decide: -25 +Decide: -27 +Decide: -32 +Decide: -28 +Decide: -32 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -25 +Decide: -21 +Decide: -25 +Decide: -20 +Decide: -21 +Decide: -27 +Decide: -15 +Decide: -18 +Decide: -22 +Decide: -20 +Decide: -22 +Decide: -18 +Decide: -20 +Decide: -25 +Decide: -14 +Decide: -15 +Decide: -18 +Decide: -22 +Decide: -21 +Decide: -22 +Decide: -18 +Decide: -21 +Decide: -25 +Decide: -15 +Decide: -12 +Decide: -13 +Decide: -14 +Decide: -15 +Decide: -19 +Decide: -20 +Decide: -22 +Decide: -26 +Decide: -29 +Decide: -27 +Decide: -29 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -21 +Decide: -22 +Decide: -26 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -26 +Decide: -28 +Decide: -33 +Decide: -22 +Decide: -20 +Decide: -21 +Decide: -22 +Decide: -27 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -22 +Decide: -21 +Decide: -22 +Decide: -19 +Decide: -20 +Decide: -21 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -28 +Decide: -33 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -26 +Decide: -21 +Decide: -26 +Decide: -20 +Decide: -21 +Decide: -27 +Decide: -15 +Decide: -19 +Decide: -22 +Decide: -20 +Decide: -22 +Decide: -19 +Decide: -20 +Decide: -26 +Decide: -14 +Decide: -15 +Decide: -19 +Decide: -22 +Decide: -21 +Decide: -22 +Decide: -19 +Decide: -21 +Decide: -26 +Decide: -15 +Decide: -13 +Decide: -14 +Decide: -15 +Decide: -20 +Decide: -22 +Decide: -21 +Decide: -22 +Decide: -20 +Decide: -21 +Decide: -27 +Decide: -15 +Decide: -14 +Decide: -15 +Decide: -10 +Decide: -11 +Decide: -12 +Decide: -13 +Decide: -14 +Decide: -17 +Decide: -18 +Decide: -19 +Decide: -20 +Decide: -24 +Decide: -25 +Decide: -26 +Decide: -31 +Decide: -32 +Decide: -38 +Decide: -33 +Decide: -38 +Decide: -32 +Decide: -33 +Decide: -39 +Decide: -27 +Decide: -31 +Decide: -32 +Decide: -38 +Decide: -34 +Decide: -38 +Decide: -32 +Decide: -34 +Decide: -39 +Decide: -31 +Decide: -26 +Decide: -27 +Decide: -31 +Decide: -33 +Decide: -38 +Decide: -34 +Decide: -38 +Decide: -33 +Decide: -34 +Decide: -40 +Decide: -31 +Decide: -27 +Decide: -31 +Decide: -25 +Decide: -26 +Decide: -27 +Decide: -32 +Decide: -33 +Decide: -39 +Decide: -34 +Decide: -39 +Decide: -33 +Decide: -34 +Decide: -40 +Decide: -32 +Decide: -27 +Decide: -32 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -21 +Decide: -24 +Decide: -25 +Decide: -26 +Decide: -31 +Decide: -32 +Decide: -38 +Decide: -33 +Decide: -38 +Decide: -32 +Decide: -33 +Decide: -39 +Decide: -28 +Decide: -31 +Decide: -32 +Decide: -38 +Decide: -35 +Decide: -38 +Decide: -32 +Decide: -35 +Decide: -39 +Decide: -31 +Decide: -26 +Decide: -28 +Decide: -31 +Decide: -33 +Decide: -38 +Decide: -35 +Decide: -38 +Decide: -33 +Decide: -35 +Decide: -40 +Decide: -31 +Decide: -28 +Decide: -31 +Decide: -25 +Decide: -26 +Decide: -28 +Decide: -32 +Decide: -33 +Decide: -39 +Decide: -35 +Decide: -39 +Decide: -33 +Decide: -35 +Decide: -40 +Decide: -32 +Decide: -28 +Decide: -32 +Decide: -26 +Decide: -28 +Decide: -33 +Decide: -24 +Decide: -25 +Decide: -31 +Decide: -26 +Decide: -31 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -20 +Decide: -21 +Decide: -24 +Decide: -25 +Decide: -27 +Decide: -31 +Decide: -32 +Decide: -38 +Decide: -34 +Decide: -38 +Decide: -32 +Decide: -34 +Decide: -39 +Decide: -28 +Decide: -31 +Decide: -32 +Decide: -38 +Decide: -35 +Decide: -38 +Decide: -32 +Decide: -35 +Decide: -39 +Decide: -31 +Decide: -27 +Decide: -28 +Decide: -31 +Decide: -34 +Decide: -38 +Decide: -35 +Decide: -38 +Decide: -34 +Decide: -35 +Decide: -41 +Decide: -31 +Decide: -28 +Decide: -31 +Decide: -25 +Decide: -27 +Decide: -28 +Decide: -32 +Decide: -34 +Decide: -39 +Decide: -35 +Decide: -39 +Decide: -34 +Decide: -35 +Decide: -41 +Decide: -32 +Decide: -28 +Decide: -32 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -24 +Decide: -25 +Decide: -31 +Decide: -27 +Decide: -31 +Decide: -25 +Decide: -27 +Decide: -32 +Decide: -21 +Decide: -24 +Decide: -25 +Decide: -31 +Decide: -28 +Decide: -31 +Decide: -25 +Decide: -28 +Decide: -32 +Decide: -24 +Decide: -19 +Decide: -20 +Decide: -21 +Decide: -24 +Decide: -26 +Decide: -27 +Decide: -31 +Decide: -33 +Decide: -38 +Decide: -34 +Decide: -38 +Decide: -33 +Decide: -34 +Decide: -40 +Decide: -28 +Decide: -31 +Decide: -33 +Decide: -38 +Decide: -35 +Decide: -38 +Decide: -33 +Decide: -35 +Decide: -40 +Decide: -31 +Decide: -27 +Decide: -28 +Decide: -31 +Decide: -34 +Decide: -38 +Decide: -35 +Decide: -38 +Decide: -34 +Decide: -35 +Decide: -41 +Decide: -31 +Decide: -28 +Decide: -31 +Decide: -26 +Decide: -27 +Decide: -28 +Decide: -33 +Decide: -34 +Decide: -40 +Decide: -35 +Decide: -40 +Decide: -34 +Decide: -35 +Decide: -41 +Decide: -33 +Decide: -28 +Decide: -33 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -24 +Decide: -26 +Decide: -31 +Decide: -27 +Decide: -31 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -21 +Decide: -24 +Decide: -26 +Decide: -31 +Decide: -28 +Decide: -31 +Decide: -26 +Decide: -28 +Decide: -33 +Decide: -24 +Decide: -20 +Decide: -21 +Decide: -24 +Decide: -27 +Decide: -31 +Decide: -28 +Decide: -31 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -24 +Decide: -21 +Decide: -24 +Decide: -18 +Decide: -19 +Decide: -20 +Decide: -21 +Decide: -25 +Decide: -26 +Decide: -27 +Decide: -32 +Decide: -33 +Decide: -39 +Decide: -34 +Decide: -39 +Decide: -33 +Decide: -34 +Decide: -40 +Decide: -28 +Decide: -32 +Decide: -33 +Decide: -39 +Decide: -35 +Decide: -39 +Decide: -33 +Decide: -35 +Decide: -40 +Decide: -32 +Decide: -27 +Decide: -28 +Decide: -32 +Decide: -34 +Decide: -39 +Decide: -35 +Decide: -39 +Decide: -34 +Decide: -35 +Decide: -41 +Decide: -32 +Decide: -28 +Decide: -32 +Decide: -26 +Decide: -27 +Decide: -28 +Decide: -33 +Decide: -34 +Decide: -40 +Decide: -35 +Decide: -40 +Decide: -34 +Decide: -35 +Decide: -41 +Decide: -33 +Decide: -28 +Decide: -33 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -27 +Decide: -32 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -21 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -28 +Decide: -32 +Decide: -26 +Decide: -28 +Decide: -33 +Decide: -25 +Decide: -20 +Decide: -21 +Decide: -25 +Decide: -27 +Decide: -32 +Decide: -28 +Decide: -32 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -25 +Decide: -21 +Decide: -25 +Decide: -19 +Decide: -20 +Decide: -21 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -28 +Decide: -33 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -26 +Decide: -21 +Decide: -26 +Decide: -20 +Decide: -21 +Decide: -27 +Decide: -17 +Decide: -18 +Decide: -19 +Decide: -24 +Decide: -25 +Decide: -31 +Decide: -26 +Decide: -31 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -20 +Decide: -24 +Decide: -25 +Decide: -31 +Decide: -27 +Decide: -31 +Decide: -25 +Decide: -27 +Decide: -32 +Decide: -24 +Decide: -19 +Decide: -20 +Decide: -24 +Decide: -26 +Decide: -31 +Decide: -27 +Decide: -31 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -24 +Decide: -20 +Decide: -24 +Decide: -18 +Decide: -19 +Decide: -20 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -27 +Decide: -32 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -25 +Decide: -20 +Decide: -25 +Decide: -19 +Decide: -20 +Decide: -26 +Decide: -14 +Decide: -17 +Decide: -18 +Decide: -19 +Decide: -24 +Decide: -25 +Decide: -31 +Decide: -26 +Decide: -31 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -21 +Decide: -24 +Decide: -25 +Decide: -31 +Decide: -28 +Decide: -31 +Decide: -25 +Decide: -28 +Decide: -32 +Decide: -24 +Decide: -19 +Decide: -21 +Decide: -24 +Decide: -26 +Decide: -31 +Decide: -28 +Decide: -31 +Decide: -26 +Decide: -28 +Decide: -33 +Decide: -24 +Decide: -21 +Decide: -24 +Decide: -18 +Decide: -19 +Decide: -21 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -28 +Decide: -32 +Decide: -26 +Decide: -28 +Decide: -33 +Decide: -25 +Decide: -21 +Decide: -25 +Decide: -19 +Decide: -21 +Decide: -26 +Decide: -17 +Decide: -18 +Decide: -24 +Decide: -19 +Decide: -24 +Decide: -18 +Decide: -19 +Decide: -25 +Decide: -13 +Decide: -14 +Decide: -17 +Decide: -18 +Decide: -20 +Decide: -24 +Decide: -25 +Decide: -31 +Decide: -27 +Decide: -31 +Decide: -25 +Decide: -27 +Decide: -32 +Decide: -21 +Decide: -24 +Decide: -25 +Decide: -31 +Decide: -28 +Decide: -31 +Decide: -25 +Decide: -28 +Decide: -32 +Decide: -24 +Decide: -20 +Decide: -21 +Decide: -24 +Decide: -27 +Decide: -31 +Decide: -28 +Decide: -31 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -24 +Decide: -21 +Decide: -24 +Decide: -18 +Decide: -20 +Decide: -21 +Decide: -25 +Decide: -27 +Decide: -32 +Decide: -28 +Decide: -32 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -25 +Decide: -21 +Decide: -25 +Decide: -20 +Decide: -21 +Decide: -27 +Decide: -17 +Decide: -18 +Decide: -24 +Decide: -20 +Decide: -24 +Decide: -18 +Decide: -20 +Decide: -25 +Decide: -14 +Decide: -17 +Decide: -18 +Decide: -24 +Decide: -21 +Decide: -24 +Decide: -18 +Decide: -21 +Decide: -25 +Decide: -17 +Decide: -12 +Decide: -13 +Decide: -14 +Decide: -17 +Decide: -19 +Decide: -20 +Decide: -24 +Decide: -26 +Decide: -31 +Decide: -27 +Decide: -31 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -21 +Decide: -24 +Decide: -26 +Decide: -31 +Decide: -28 +Decide: -31 +Decide: -26 +Decide: -28 +Decide: -33 +Decide: -24 +Decide: -20 +Decide: -21 +Decide: -24 +Decide: -27 +Decide: -31 +Decide: -28 +Decide: -31 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -24 +Decide: -21 +Decide: -24 +Decide: -19 +Decide: -20 +Decide: -21 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -28 +Decide: -33 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -26 +Decide: -21 +Decide: -26 +Decide: -20 +Decide: -21 +Decide: -27 +Decide: -17 +Decide: -19 +Decide: -24 +Decide: -20 +Decide: -24 +Decide: -19 +Decide: -20 +Decide: -26 +Decide: -14 +Decide: -17 +Decide: -19 +Decide: -24 +Decide: -21 +Decide: -24 +Decide: -19 +Decide: -21 +Decide: -26 +Decide: -17 +Decide: -13 +Decide: -14 +Decide: -17 +Decide: -20 +Decide: -24 +Decide: -21 +Decide: -24 +Decide: -20 +Decide: -21 +Decide: -27 +Decide: -17 +Decide: -14 +Decide: -17 +Decide: -11 +Decide: -12 +Decide: -13 +Decide: -14 +Decide: -18 +Decide: -19 +Decide: -20 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -27 +Decide: -32 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -21 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -28 +Decide: -32 +Decide: -26 +Decide: -28 +Decide: -33 +Decide: -25 +Decide: -20 +Decide: -21 +Decide: -25 +Decide: -27 +Decide: -32 +Decide: -28 +Decide: -32 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -25 +Decide: -21 +Decide: -25 +Decide: -19 +Decide: -20 +Decide: -21 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -28 +Decide: -33 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -26 +Decide: -21 +Decide: -26 +Decide: -20 +Decide: -21 +Decide: -27 +Decide: -18 +Decide: -19 +Decide: -25 +Decide: -20 +Decide: -25 +Decide: -19 +Decide: -20 +Decide: -26 +Decide: -14 +Decide: -18 +Decide: -19 +Decide: -25 +Decide: -21 +Decide: -25 +Decide: -19 +Decide: -21 +Decide: -26 +Decide: -18 +Decide: -13 +Decide: -14 +Decide: -18 +Decide: -20 +Decide: -25 +Decide: -21 +Decide: -25 +Decide: -20 +Decide: -21 +Decide: -27 +Decide: -18 +Decide: -14 +Decide: -18 +Decide: -12 +Decide: -13 +Decide: -14 +Decide: -19 +Decide: -20 +Decide: -26 +Decide: -21 +Decide: -26 +Decide: -20 +Decide: -21 +Decide: -27 +Decide: -19 +Decide: -14 +Decide: -19 +Decide: -13 +Decide: -14 +Decide: -20 +Decide: -8 +Decide: -10 +Decide: -11 +Decide: -12 +Decide: -15 +Decide: -17 +Decide: -18 +Decide: -22 +Decide: -24 +Decide: -29 +Decide: -25 +Decide: -29 +Decide: -24 +Decide: -25 +Decide: -31 +Decide: -19 +Decide: -22 +Decide: -24 +Decide: -29 +Decide: -26 +Decide: -29 +Decide: -24 +Decide: -26 +Decide: -31 +Decide: -22 +Decide: -18 +Decide: -19 +Decide: -22 +Decide: -25 +Decide: -29 +Decide: -26 +Decide: -29 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -22 +Decide: -19 +Decide: -22 +Decide: -17 +Decide: -18 +Decide: -19 +Decide: -24 +Decide: -25 +Decide: -31 +Decide: -26 +Decide: -31 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -24 +Decide: -19 +Decide: -24 +Decide: -18 +Decide: -19 +Decide: -25 +Decide: -13 +Decide: -15 +Decide: -17 +Decide: -18 +Decide: -22 +Decide: -24 +Decide: -29 +Decide: -25 +Decide: -29 +Decide: -24 +Decide: -25 +Decide: -31 +Decide: -20 +Decide: -22 +Decide: -24 +Decide: -29 +Decide: -27 +Decide: -29 +Decide: -24 +Decide: -27 +Decide: -31 +Decide: -22 +Decide: -18 +Decide: -20 +Decide: -22 +Decide: -25 +Decide: -29 +Decide: -27 +Decide: -29 +Decide: -25 +Decide: -27 +Decide: -32 +Decide: -22 +Decide: -20 +Decide: -22 +Decide: -17 +Decide: -18 +Decide: -20 +Decide: -24 +Decide: -25 +Decide: -31 +Decide: -27 +Decide: -31 +Decide: -25 +Decide: -27 +Decide: -32 +Decide: -24 +Decide: -20 +Decide: -24 +Decide: -18 +Decide: -20 +Decide: -25 +Decide: -15 +Decide: -17 +Decide: -22 +Decide: -18 +Decide: -22 +Decide: -17 +Decide: -18 +Decide: -24 +Decide: -12 +Decide: -13 +Decide: -15 +Decide: -17 +Decide: -19 +Decide: -22 +Decide: -24 +Decide: -29 +Decide: -26 +Decide: -29 +Decide: -24 +Decide: -26 +Decide: -31 +Decide: -20 +Decide: -22 +Decide: -24 +Decide: -29 +Decide: -27 +Decide: -29 +Decide: -24 +Decide: -27 +Decide: -31 +Decide: -22 +Decide: -19 +Decide: -20 +Decide: -22 +Decide: -26 +Decide: -29 +Decide: -27 +Decide: -29 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -22 +Decide: -20 +Decide: -22 +Decide: -17 +Decide: -19 +Decide: -20 +Decide: -24 +Decide: -26 +Decide: -31 +Decide: -27 +Decide: -31 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -24 +Decide: -20 +Decide: -24 +Decide: -19 +Decide: -20 +Decide: -26 +Decide: -15 +Decide: -17 +Decide: -22 +Decide: -19 +Decide: -22 +Decide: -17 +Decide: -19 +Decide: -24 +Decide: -13 +Decide: -15 +Decide: -17 +Decide: -22 +Decide: -20 +Decide: -22 +Decide: -17 +Decide: -20 +Decide: -24 +Decide: -15 +Decide: -11 +Decide: -12 +Decide: -13 +Decide: -15 +Decide: -18 +Decide: -19 +Decide: -22 +Decide: -25 +Decide: -29 +Decide: -26 +Decide: -29 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -20 +Decide: -22 +Decide: -25 +Decide: -29 +Decide: -27 +Decide: -29 +Decide: -25 +Decide: -27 +Decide: -32 +Decide: -22 +Decide: -19 +Decide: -20 +Decide: -22 +Decide: -26 +Decide: -29 +Decide: -27 +Decide: -29 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -22 +Decide: -20 +Decide: -22 +Decide: -18 +Decide: -19 +Decide: -20 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -27 +Decide: -32 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -25 +Decide: -20 +Decide: -25 +Decide: -19 +Decide: -20 +Decide: -26 +Decide: -15 +Decide: -18 +Decide: -22 +Decide: -19 +Decide: -22 +Decide: -18 +Decide: -19 +Decide: -25 +Decide: -13 +Decide: -15 +Decide: -18 +Decide: -22 +Decide: -20 +Decide: -22 +Decide: -18 +Decide: -20 +Decide: -25 +Decide: -15 +Decide: -12 +Decide: -13 +Decide: -15 +Decide: -19 +Decide: -22 +Decide: -20 +Decide: -22 +Decide: -19 +Decide: -20 +Decide: -26 +Decide: -15 +Decide: -13 +Decide: -15 +Decide: -10 +Decide: -11 +Decide: -12 +Decide: -13 +Decide: -17 +Decide: -18 +Decide: -19 +Decide: -24 +Decide: -25 +Decide: -31 +Decide: -26 +Decide: -31 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -20 +Decide: -24 +Decide: -25 +Decide: -31 +Decide: -27 +Decide: -31 +Decide: -25 +Decide: -27 +Decide: -32 +Decide: -24 +Decide: -19 +Decide: -20 +Decide: -24 +Decide: -26 +Decide: -31 +Decide: -27 +Decide: -31 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -24 +Decide: -20 +Decide: -24 +Decide: -18 +Decide: -19 +Decide: -20 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -27 +Decide: -32 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -25 +Decide: -20 +Decide: -25 +Decide: -19 +Decide: -20 +Decide: -26 +Decide: -17 +Decide: -18 +Decide: -24 +Decide: -19 +Decide: -24 +Decide: -18 +Decide: -19 +Decide: -25 +Decide: -13 +Decide: -17 +Decide: -18 +Decide: -24 +Decide: -20 +Decide: -24 +Decide: -18 +Decide: -20 +Decide: -25 +Decide: -17 +Decide: -12 +Decide: -13 +Decide: -17 +Decide: -19 +Decide: -24 +Decide: -20 +Decide: -24 +Decide: -19 +Decide: -20 +Decide: -26 +Decide: -17 +Decide: -13 +Decide: -17 +Decide: -11 +Decide: -12 +Decide: -13 +Decide: -18 +Decide: -19 +Decide: -25 +Decide: -20 +Decide: -25 +Decide: -19 +Decide: -20 +Decide: -26 +Decide: -18 +Decide: -13 +Decide: -18 +Decide: -12 +Decide: -13 +Decide: -19 +Decide: -7 +Decide: -8 +Decide: -10 +Decide: -11 +Decide: -12 +Decide: -15 +Decide: -17 +Decide: -18 +Decide: -22 +Decide: -24 +Decide: -29 +Decide: -25 +Decide: -29 +Decide: -24 +Decide: -25 +Decide: -31 +Decide: -19 +Decide: -22 +Decide: -24 +Decide: -29 +Decide: -26 +Decide: -29 +Decide: -24 +Decide: -26 +Decide: -31 +Decide: -22 +Decide: -18 +Decide: -19 +Decide: -22 +Decide: -25 +Decide: -29 +Decide: -26 +Decide: -29 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -22 +Decide: -19 +Decide: -22 +Decide: -17 +Decide: -18 +Decide: -19 +Decide: -24 +Decide: -25 +Decide: -31 +Decide: -26 +Decide: -31 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -24 +Decide: -19 +Decide: -24 +Decide: -18 +Decide: -19 +Decide: -25 +Decide: -14 +Decide: -15 +Decide: -17 +Decide: -18 +Decide: -22 +Decide: -24 +Decide: -29 +Decide: -25 +Decide: -29 +Decide: -24 +Decide: -25 +Decide: -31 +Decide: -21 +Decide: -22 +Decide: -24 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -24 +Decide: -28 +Decide: -31 +Decide: -22 +Decide: -18 +Decide: -21 +Decide: -22 +Decide: -25 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -25 +Decide: -28 +Decide: -32 +Decide: -22 +Decide: -21 +Decide: -22 +Decide: -17 +Decide: -18 +Decide: -21 +Decide: -24 +Decide: -25 +Decide: -31 +Decide: -28 +Decide: -31 +Decide: -25 +Decide: -28 +Decide: -32 +Decide: -24 +Decide: -21 +Decide: -24 +Decide: -18 +Decide: -21 +Decide: -25 +Decide: -15 +Decide: -17 +Decide: -22 +Decide: -18 +Decide: -22 +Decide: -17 +Decide: -18 +Decide: -24 +Decide: -12 +Decide: -14 +Decide: -15 +Decide: -17 +Decide: -19 +Decide: -22 +Decide: -24 +Decide: -29 +Decide: -26 +Decide: -29 +Decide: -24 +Decide: -26 +Decide: -31 +Decide: -21 +Decide: -22 +Decide: -24 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -24 +Decide: -28 +Decide: -31 +Decide: -22 +Decide: -19 +Decide: -21 +Decide: -22 +Decide: -26 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -26 +Decide: -28 +Decide: -33 +Decide: -22 +Decide: -21 +Decide: -22 +Decide: -17 +Decide: -19 +Decide: -21 +Decide: -24 +Decide: -26 +Decide: -31 +Decide: -28 +Decide: -31 +Decide: -26 +Decide: -28 +Decide: -33 +Decide: -24 +Decide: -21 +Decide: -24 +Decide: -19 +Decide: -21 +Decide: -26 +Decide: -15 +Decide: -17 +Decide: -22 +Decide: -19 +Decide: -22 +Decide: -17 +Decide: -19 +Decide: -24 +Decide: -14 +Decide: -15 +Decide: -17 +Decide: -22 +Decide: -21 +Decide: -22 +Decide: -17 +Decide: -21 +Decide: -24 +Decide: -15 +Decide: -11 +Decide: -12 +Decide: -14 +Decide: -15 +Decide: -18 +Decide: -19 +Decide: -22 +Decide: -25 +Decide: -29 +Decide: -26 +Decide: -29 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -21 +Decide: -22 +Decide: -25 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -25 +Decide: -28 +Decide: -32 +Decide: -22 +Decide: -19 +Decide: -21 +Decide: -22 +Decide: -26 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -26 +Decide: -28 +Decide: -33 +Decide: -22 +Decide: -21 +Decide: -22 +Decide: -18 +Decide: -19 +Decide: -21 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -28 +Decide: -32 +Decide: -26 +Decide: -28 +Decide: -33 +Decide: -25 +Decide: -21 +Decide: -25 +Decide: -19 +Decide: -21 +Decide: -26 +Decide: -15 +Decide: -18 +Decide: -22 +Decide: -19 +Decide: -22 +Decide: -18 +Decide: -19 +Decide: -25 +Decide: -14 +Decide: -15 +Decide: -18 +Decide: -22 +Decide: -21 +Decide: -22 +Decide: -18 +Decide: -21 +Decide: -25 +Decide: -15 +Decide: -12 +Decide: -14 +Decide: -15 +Decide: -19 +Decide: -22 +Decide: -21 +Decide: -22 +Decide: -19 +Decide: -21 +Decide: -26 +Decide: -15 +Decide: -14 +Decide: -15 +Decide: -10 +Decide: -11 +Decide: -12 +Decide: -14 +Decide: -17 +Decide: -18 +Decide: -19 +Decide: -24 +Decide: -25 +Decide: -31 +Decide: -26 +Decide: -31 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -21 +Decide: -24 +Decide: -25 +Decide: -31 +Decide: -28 +Decide: -31 +Decide: -25 +Decide: -28 +Decide: -32 +Decide: -24 +Decide: -19 +Decide: -21 +Decide: -24 +Decide: -26 +Decide: -31 +Decide: -28 +Decide: -31 +Decide: -26 +Decide: -28 +Decide: -33 +Decide: -24 +Decide: -21 +Decide: -24 +Decide: -18 +Decide: -19 +Decide: -21 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -28 +Decide: -32 +Decide: -26 +Decide: -28 +Decide: -33 +Decide: -25 +Decide: -21 +Decide: -25 +Decide: -19 +Decide: -21 +Decide: -26 +Decide: -17 +Decide: -18 +Decide: -24 +Decide: -19 +Decide: -24 +Decide: -18 +Decide: -19 +Decide: -25 +Decide: -14 +Decide: -17 +Decide: -18 +Decide: -24 +Decide: -21 +Decide: -24 +Decide: -18 +Decide: -21 +Decide: -25 +Decide: -17 +Decide: -12 +Decide: -14 +Decide: -17 +Decide: -19 +Decide: -24 +Decide: -21 +Decide: -24 +Decide: -19 +Decide: -21 +Decide: -26 +Decide: -17 +Decide: -14 +Decide: -17 +Decide: -11 +Decide: -12 +Decide: -14 +Decide: -18 +Decide: -19 +Decide: -25 +Decide: -21 +Decide: -25 +Decide: -19 +Decide: -21 +Decide: -26 +Decide: -18 +Decide: -14 +Decide: -18 +Decide: -12 +Decide: -14 +Decide: -19 +Decide: -8 +Decide: -10 +Decide: -11 +Decide: -15 +Decide: -17 +Decide: -22 +Decide: -18 +Decide: -22 +Decide: -17 +Decide: -18 +Decide: -24 +Decide: -12 +Decide: -15 +Decide: -17 +Decide: -22 +Decide: -19 +Decide: -22 +Decide: -17 +Decide: -19 +Decide: -24 +Decide: -15 +Decide: -11 +Decide: -12 +Decide: -15 +Decide: -18 +Decide: -22 +Decide: -19 +Decide: -22 +Decide: -18 +Decide: -19 +Decide: -25 +Decide: -15 +Decide: -12 +Decide: -15 +Decide: -10 +Decide: -11 +Decide: -12 +Decide: -17 +Decide: -18 +Decide: -24 +Decide: -19 +Decide: -24 +Decide: -18 +Decide: -19 +Decide: -25 +Decide: -17 +Decide: -12 +Decide: -17 +Decide: -11 +Decide: -12 +Decide: -18 +Decide: -6 +Decide: -7 +Decide: -8 +Decide: -10 +Decide: -11 +Decide: -13 +Decide: -15 +Decide: -17 +Decide: -18 +Decide: -22 +Decide: -24 +Decide: -29 +Decide: -25 +Decide: -29 +Decide: -24 +Decide: -25 +Decide: -31 +Decide: -20 +Decide: -22 +Decide: -24 +Decide: -29 +Decide: -27 +Decide: -29 +Decide: -24 +Decide: -27 +Decide: -31 +Decide: -22 +Decide: -18 +Decide: -20 +Decide: -22 +Decide: -25 +Decide: -29 +Decide: -27 +Decide: -29 +Decide: -25 +Decide: -27 +Decide: -32 +Decide: -22 +Decide: -20 +Decide: -22 +Decide: -17 +Decide: -18 +Decide: -20 +Decide: -24 +Decide: -25 +Decide: -31 +Decide: -27 +Decide: -31 +Decide: -25 +Decide: -27 +Decide: -32 +Decide: -24 +Decide: -20 +Decide: -24 +Decide: -18 +Decide: -20 +Decide: -25 +Decide: -14 +Decide: -15 +Decide: -17 +Decide: -18 +Decide: -22 +Decide: -24 +Decide: -29 +Decide: -25 +Decide: -29 +Decide: -24 +Decide: -25 +Decide: -31 +Decide: -21 +Decide: -22 +Decide: -24 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -24 +Decide: -28 +Decide: -31 +Decide: -22 +Decide: -18 +Decide: -21 +Decide: -22 +Decide: -25 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -25 +Decide: -28 +Decide: -32 +Decide: -22 +Decide: -21 +Decide: -22 +Decide: -17 +Decide: -18 +Decide: -21 +Decide: -24 +Decide: -25 +Decide: -31 +Decide: -28 +Decide: -31 +Decide: -25 +Decide: -28 +Decide: -32 +Decide: -24 +Decide: -21 +Decide: -24 +Decide: -18 +Decide: -21 +Decide: -25 +Decide: -15 +Decide: -17 +Decide: -22 +Decide: -18 +Decide: -22 +Decide: -17 +Decide: -18 +Decide: -24 +Decide: -13 +Decide: -14 +Decide: -15 +Decide: -17 +Decide: -20 +Decide: -22 +Decide: -24 +Decide: -29 +Decide: -27 +Decide: -29 +Decide: -24 +Decide: -27 +Decide: -31 +Decide: -21 +Decide: -22 +Decide: -24 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -24 +Decide: -28 +Decide: -31 +Decide: -22 +Decide: -20 +Decide: -21 +Decide: -22 +Decide: -27 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -22 +Decide: -21 +Decide: -22 +Decide: -17 +Decide: -20 +Decide: -21 +Decide: -24 +Decide: -27 +Decide: -31 +Decide: -28 +Decide: -31 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -24 +Decide: -21 +Decide: -24 +Decide: -20 +Decide: -21 +Decide: -27 +Decide: -15 +Decide: -17 +Decide: -22 +Decide: -20 +Decide: -22 +Decide: -17 +Decide: -20 +Decide: -24 +Decide: -14 +Decide: -15 +Decide: -17 +Decide: -22 +Decide: -21 +Decide: -22 +Decide: -17 +Decide: -21 +Decide: -24 +Decide: -15 +Decide: -11 +Decide: -13 +Decide: -14 +Decide: -15 +Decide: -18 +Decide: -20 +Decide: -22 +Decide: -25 +Decide: -29 +Decide: -27 +Decide: -29 +Decide: -25 +Decide: -27 +Decide: -32 +Decide: -21 +Decide: -22 +Decide: -25 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -25 +Decide: -28 +Decide: -32 +Decide: -22 +Decide: -20 +Decide: -21 +Decide: -22 +Decide: -27 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -22 +Decide: -21 +Decide: -22 +Decide: -18 +Decide: -20 +Decide: -21 +Decide: -25 +Decide: -27 +Decide: -32 +Decide: -28 +Decide: -32 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -25 +Decide: -21 +Decide: -25 +Decide: -20 +Decide: -21 +Decide: -27 +Decide: -15 +Decide: -18 +Decide: -22 +Decide: -20 +Decide: -22 +Decide: -18 +Decide: -20 +Decide: -25 +Decide: -14 +Decide: -15 +Decide: -18 +Decide: -22 +Decide: -21 +Decide: -22 +Decide: -18 +Decide: -21 +Decide: -25 +Decide: -15 +Decide: -13 +Decide: -14 +Decide: -15 +Decide: -20 +Decide: -22 +Decide: -21 +Decide: -22 +Decide: -20 +Decide: -21 +Decide: -27 +Decide: -15 +Decide: -14 +Decide: -15 +Decide: -10 +Decide: -11 +Decide: -13 +Decide: -14 +Decide: -17 +Decide: -18 +Decide: -20 +Decide: -24 +Decide: -25 +Decide: -31 +Decide: -27 +Decide: -31 +Decide: -25 +Decide: -27 +Decide: -32 +Decide: -21 +Decide: -24 +Decide: -25 +Decide: -31 +Decide: -28 +Decide: -31 +Decide: -25 +Decide: -28 +Decide: -32 +Decide: -24 +Decide: -20 +Decide: -21 +Decide: -24 +Decide: -27 +Decide: -31 +Decide: -28 +Decide: -31 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -24 +Decide: -21 +Decide: -24 +Decide: -18 +Decide: -20 +Decide: -21 +Decide: -25 +Decide: -27 +Decide: -32 +Decide: -28 +Decide: -32 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -25 +Decide: -21 +Decide: -25 +Decide: -20 +Decide: -21 +Decide: -27 +Decide: -17 +Decide: -18 +Decide: -24 +Decide: -20 +Decide: -24 +Decide: -18 +Decide: -20 +Decide: -25 +Decide: -14 +Decide: -17 +Decide: -18 +Decide: -24 +Decide: -21 +Decide: -24 +Decide: -18 +Decide: -21 +Decide: -25 +Decide: -17 +Decide: -13 +Decide: -14 +Decide: -17 +Decide: -20 +Decide: -24 +Decide: -21 +Decide: -24 +Decide: -20 +Decide: -21 +Decide: -27 +Decide: -17 +Decide: -14 +Decide: -17 +Decide: -11 +Decide: -13 +Decide: -14 +Decide: -18 +Decide: -20 +Decide: -25 +Decide: -21 +Decide: -25 +Decide: -20 +Decide: -21 +Decide: -27 +Decide: -18 +Decide: -14 +Decide: -18 +Decide: -13 +Decide: -14 +Decide: -20 +Decide: -8 +Decide: -10 +Decide: -11 +Decide: -15 +Decide: -17 +Decide: -22 +Decide: -18 +Decide: -22 +Decide: -17 +Decide: -18 +Decide: -24 +Decide: -13 +Decide: -15 +Decide: -17 +Decide: -22 +Decide: -20 +Decide: -22 +Decide: -17 +Decide: -20 +Decide: -24 +Decide: -15 +Decide: -11 +Decide: -13 +Decide: -15 +Decide: -18 +Decide: -22 +Decide: -20 +Decide: -22 +Decide: -18 +Decide: -20 +Decide: -25 +Decide: -15 +Decide: -13 +Decide: -15 +Decide: -10 +Decide: -11 +Decide: -13 +Decide: -17 +Decide: -18 +Decide: -24 +Decide: -20 +Decide: -24 +Decide: -18 +Decide: -20 +Decide: -25 +Decide: -17 +Decide: -13 +Decide: -17 +Decide: -11 +Decide: -13 +Decide: -18 +Decide: -7 +Decide: -8 +Decide: -10 +Decide: -11 +Decide: -15 +Decide: -17 +Decide: -22 +Decide: -18 +Decide: -22 +Decide: -17 +Decide: -18 +Decide: -24 +Decide: -14 +Decide: -15 +Decide: -17 +Decide: -22 +Decide: -21 +Decide: -22 +Decide: -17 +Decide: -21 +Decide: -24 +Decide: -15 +Decide: -11 +Decide: -14 +Decide: -15 +Decide: -18 +Decide: -22 +Decide: -21 +Decide: -22 +Decide: -18 +Decide: -21 +Decide: -25 +Decide: -15 +Decide: -14 +Decide: -15 +Decide: -10 +Decide: -11 +Decide: -14 +Decide: -17 +Decide: -18 +Decide: -24 +Decide: -21 +Decide: -24 +Decide: -18 +Decide: -21 +Decide: -25 +Decide: -17 +Decide: -14 +Decide: -17 +Decide: -11 +Decide: -14 +Decide: -18 +Decide: -8 +Decide: -10 +Decide: -15 +Decide: -11 +Decide: -15 +Decide: -10 +Decide: -11 +Decide: -17 +Decide: -5 +Decide: -6 +Decide: -7 +Decide: -8 +Decide: -10 +Decide: -12 +Decide: -13 +Decide: -15 +Decide: -17 +Decide: -19 +Decide: -22 +Decide: -24 +Decide: -29 +Decide: -26 +Decide: -29 +Decide: -24 +Decide: -26 +Decide: -31 +Decide: -20 +Decide: -22 +Decide: -24 +Decide: -29 +Decide: -27 +Decide: -29 +Decide: -24 +Decide: -27 +Decide: -31 +Decide: -22 +Decide: -19 +Decide: -20 +Decide: -22 +Decide: -26 +Decide: -29 +Decide: -27 +Decide: -29 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -22 +Decide: -20 +Decide: -22 +Decide: -17 +Decide: -19 +Decide: -20 +Decide: -24 +Decide: -26 +Decide: -31 +Decide: -27 +Decide: -31 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -24 +Decide: -20 +Decide: -24 +Decide: -19 +Decide: -20 +Decide: -26 +Decide: -14 +Decide: -15 +Decide: -17 +Decide: -19 +Decide: -22 +Decide: -24 +Decide: -29 +Decide: -26 +Decide: -29 +Decide: -24 +Decide: -26 +Decide: -31 +Decide: -21 +Decide: -22 +Decide: -24 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -24 +Decide: -28 +Decide: -31 +Decide: -22 +Decide: -19 +Decide: -21 +Decide: -22 +Decide: -26 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -26 +Decide: -28 +Decide: -33 +Decide: -22 +Decide: -21 +Decide: -22 +Decide: -17 +Decide: -19 +Decide: -21 +Decide: -24 +Decide: -26 +Decide: -31 +Decide: -28 +Decide: -31 +Decide: -26 +Decide: -28 +Decide: -33 +Decide: -24 +Decide: -21 +Decide: -24 +Decide: -19 +Decide: -21 +Decide: -26 +Decide: -15 +Decide: -17 +Decide: -22 +Decide: -19 +Decide: -22 +Decide: -17 +Decide: -19 +Decide: -24 +Decide: -13 +Decide: -14 +Decide: -15 +Decide: -17 +Decide: -20 +Decide: -22 +Decide: -24 +Decide: -29 +Decide: -27 +Decide: -29 +Decide: -24 +Decide: -27 +Decide: -31 +Decide: -21 +Decide: -22 +Decide: -24 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -24 +Decide: -28 +Decide: -31 +Decide: -22 +Decide: -20 +Decide: -21 +Decide: -22 +Decide: -27 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -22 +Decide: -21 +Decide: -22 +Decide: -17 +Decide: -20 +Decide: -21 +Decide: -24 +Decide: -27 +Decide: -31 +Decide: -28 +Decide: -31 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -24 +Decide: -21 +Decide: -24 +Decide: -20 +Decide: -21 +Decide: -27 +Decide: -15 +Decide: -17 +Decide: -22 +Decide: -20 +Decide: -22 +Decide: -17 +Decide: -20 +Decide: -24 +Decide: -14 +Decide: -15 +Decide: -17 +Decide: -22 +Decide: -21 +Decide: -22 +Decide: -17 +Decide: -21 +Decide: -24 +Decide: -15 +Decide: -12 +Decide: -13 +Decide: -14 +Decide: -15 +Decide: -19 +Decide: -20 +Decide: -22 +Decide: -26 +Decide: -29 +Decide: -27 +Decide: -29 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -21 +Decide: -22 +Decide: -26 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -26 +Decide: -28 +Decide: -33 +Decide: -22 +Decide: -20 +Decide: -21 +Decide: -22 +Decide: -27 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -22 +Decide: -21 +Decide: -22 +Decide: -19 +Decide: -20 +Decide: -21 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -28 +Decide: -33 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -26 +Decide: -21 +Decide: -26 +Decide: -20 +Decide: -21 +Decide: -27 +Decide: -15 +Decide: -19 +Decide: -22 +Decide: -20 +Decide: -22 +Decide: -19 +Decide: -20 +Decide: -26 +Decide: -14 +Decide: -15 +Decide: -19 +Decide: -22 +Decide: -21 +Decide: -22 +Decide: -19 +Decide: -21 +Decide: -26 +Decide: -15 +Decide: -13 +Decide: -14 +Decide: -15 +Decide: -20 +Decide: -22 +Decide: -21 +Decide: -22 +Decide: -20 +Decide: -21 +Decide: -27 +Decide: -15 +Decide: -14 +Decide: -15 +Decide: -10 +Decide: -12 +Decide: -13 +Decide: -14 +Decide: -17 +Decide: -19 +Decide: -20 +Decide: -24 +Decide: -26 +Decide: -31 +Decide: -27 +Decide: -31 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -21 +Decide: -24 +Decide: -26 +Decide: -31 +Decide: -28 +Decide: -31 +Decide: -26 +Decide: -28 +Decide: -33 +Decide: -24 +Decide: -20 +Decide: -21 +Decide: -24 +Decide: -27 +Decide: -31 +Decide: -28 +Decide: -31 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -24 +Decide: -21 +Decide: -24 +Decide: -19 +Decide: -20 +Decide: -21 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -28 +Decide: -33 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -26 +Decide: -21 +Decide: -26 +Decide: -20 +Decide: -21 +Decide: -27 +Decide: -17 +Decide: -19 +Decide: -24 +Decide: -20 +Decide: -24 +Decide: -19 +Decide: -20 +Decide: -26 +Decide: -14 +Decide: -17 +Decide: -19 +Decide: -24 +Decide: -21 +Decide: -24 +Decide: -19 +Decide: -21 +Decide: -26 +Decide: -17 +Decide: -13 +Decide: -14 +Decide: -17 +Decide: -20 +Decide: -24 +Decide: -21 +Decide: -24 +Decide: -20 +Decide: -21 +Decide: -27 +Decide: -17 +Decide: -14 +Decide: -17 +Decide: -12 +Decide: -13 +Decide: -14 +Decide: -19 +Decide: -20 +Decide: -26 +Decide: -21 +Decide: -26 +Decide: -20 +Decide: -21 +Decide: -27 +Decide: -19 +Decide: -14 +Decide: -19 +Decide: -13 +Decide: -14 +Decide: -20 +Decide: -8 +Decide: -10 +Decide: -12 +Decide: -15 +Decide: -17 +Decide: -22 +Decide: -19 +Decide: -22 +Decide: -17 +Decide: -19 +Decide: -24 +Decide: -13 +Decide: -15 +Decide: -17 +Decide: -22 +Decide: -20 +Decide: -22 +Decide: -17 +Decide: -20 +Decide: -24 +Decide: -15 +Decide: -12 +Decide: -13 +Decide: -15 +Decide: -19 +Decide: -22 +Decide: -20 +Decide: -22 +Decide: -19 +Decide: -20 +Decide: -26 +Decide: -15 +Decide: -13 +Decide: -15 +Decide: -10 +Decide: -12 +Decide: -13 +Decide: -17 +Decide: -19 +Decide: -24 +Decide: -20 +Decide: -24 +Decide: -19 +Decide: -20 +Decide: -26 +Decide: -17 +Decide: -13 +Decide: -17 +Decide: -12 +Decide: -13 +Decide: -19 +Decide: -7 +Decide: -8 +Decide: -10 +Decide: -12 +Decide: -15 +Decide: -17 +Decide: -22 +Decide: -19 +Decide: -22 +Decide: -17 +Decide: -19 +Decide: -24 +Decide: -14 +Decide: -15 +Decide: -17 +Decide: -22 +Decide: -21 +Decide: -22 +Decide: -17 +Decide: -21 +Decide: -24 +Decide: -15 +Decide: -12 +Decide: -14 +Decide: -15 +Decide: -19 +Decide: -22 +Decide: -21 +Decide: -22 +Decide: -19 +Decide: -21 +Decide: -26 +Decide: -15 +Decide: -14 +Decide: -15 +Decide: -10 +Decide: -12 +Decide: -14 +Decide: -17 +Decide: -19 +Decide: -24 +Decide: -21 +Decide: -24 +Decide: -19 +Decide: -21 +Decide: -26 +Decide: -17 +Decide: -14 +Decide: -17 +Decide: -12 +Decide: -14 +Decide: -19 +Decide: -8 +Decide: -10 +Decide: -15 +Decide: -12 +Decide: -15 +Decide: -10 +Decide: -12 +Decide: -17 +Decide: -6 +Decide: -7 +Decide: -8 +Decide: -10 +Decide: -13 +Decide: -15 +Decide: -17 +Decide: -22 +Decide: -20 +Decide: -22 +Decide: -17 +Decide: -20 +Decide: -24 +Decide: -14 +Decide: -15 +Decide: -17 +Decide: -22 +Decide: -21 +Decide: -22 +Decide: -17 +Decide: -21 +Decide: -24 +Decide: -15 +Decide: -13 +Decide: -14 +Decide: -15 +Decide: -20 +Decide: -22 +Decide: -21 +Decide: -22 +Decide: -20 +Decide: -21 +Decide: -27 +Decide: -15 +Decide: -14 +Decide: -15 +Decide: -10 +Decide: -13 +Decide: -14 +Decide: -17 +Decide: -20 +Decide: -24 +Decide: -21 +Decide: -24 +Decide: -20 +Decide: -21 +Decide: -27 +Decide: -17 +Decide: -14 +Decide: -17 +Decide: -13 +Decide: -14 +Decide: -20 +Decide: -8 +Decide: -10 +Decide: -15 +Decide: -13 +Decide: -15 +Decide: -10 +Decide: -13 +Decide: -17 +Decide: -7 +Decide: -8 +Decide: -10 +Decide: -15 +Decide: -14 +Decide: -15 +Decide: -10 +Decide: -14 +Decide: -17 +Decide: -8 +Decide: -4 +Decide: -5 +Decide: -6 +Decide: -7 +Decide: -8 +Decide: -11 +Decide: -12 +Decide: -13 +Decide: -15 +Decide: -18 +Decide: -19 +Decide: -22 +Decide: -25 +Decide: -29 +Decide: -26 +Decide: -29 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -20 +Decide: -22 +Decide: -25 +Decide: -29 +Decide: -27 +Decide: -29 +Decide: -25 +Decide: -27 +Decide: -32 +Decide: -22 +Decide: -19 +Decide: -20 +Decide: -22 +Decide: -26 +Decide: -29 +Decide: -27 +Decide: -29 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -22 +Decide: -20 +Decide: -22 +Decide: -18 +Decide: -19 +Decide: -20 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -27 +Decide: -32 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -25 +Decide: -20 +Decide: -25 +Decide: -19 +Decide: -20 +Decide: -26 +Decide: -14 +Decide: -15 +Decide: -18 +Decide: -19 +Decide: -22 +Decide: -25 +Decide: -29 +Decide: -26 +Decide: -29 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -21 +Decide: -22 +Decide: -25 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -25 +Decide: -28 +Decide: -32 +Decide: -22 +Decide: -19 +Decide: -21 +Decide: -22 +Decide: -26 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -26 +Decide: -28 +Decide: -33 +Decide: -22 +Decide: -21 +Decide: -22 +Decide: -18 +Decide: -19 +Decide: -21 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -28 +Decide: -32 +Decide: -26 +Decide: -28 +Decide: -33 +Decide: -25 +Decide: -21 +Decide: -25 +Decide: -19 +Decide: -21 +Decide: -26 +Decide: -15 +Decide: -18 +Decide: -22 +Decide: -19 +Decide: -22 +Decide: -18 +Decide: -19 +Decide: -25 +Decide: -13 +Decide: -14 +Decide: -15 +Decide: -18 +Decide: -20 +Decide: -22 +Decide: -25 +Decide: -29 +Decide: -27 +Decide: -29 +Decide: -25 +Decide: -27 +Decide: -32 +Decide: -21 +Decide: -22 +Decide: -25 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -25 +Decide: -28 +Decide: -32 +Decide: -22 +Decide: -20 +Decide: -21 +Decide: -22 +Decide: -27 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -22 +Decide: -21 +Decide: -22 +Decide: -18 +Decide: -20 +Decide: -21 +Decide: -25 +Decide: -27 +Decide: -32 +Decide: -28 +Decide: -32 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -25 +Decide: -21 +Decide: -25 +Decide: -20 +Decide: -21 +Decide: -27 +Decide: -15 +Decide: -18 +Decide: -22 +Decide: -20 +Decide: -22 +Decide: -18 +Decide: -20 +Decide: -25 +Decide: -14 +Decide: -15 +Decide: -18 +Decide: -22 +Decide: -21 +Decide: -22 +Decide: -18 +Decide: -21 +Decide: -25 +Decide: -15 +Decide: -12 +Decide: -13 +Decide: -14 +Decide: -15 +Decide: -19 +Decide: -20 +Decide: -22 +Decide: -26 +Decide: -29 +Decide: -27 +Decide: -29 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -21 +Decide: -22 +Decide: -26 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -26 +Decide: -28 +Decide: -33 +Decide: -22 +Decide: -20 +Decide: -21 +Decide: -22 +Decide: -27 +Decide: -29 +Decide: -28 +Decide: -29 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -22 +Decide: -21 +Decide: -22 +Decide: -19 +Decide: -20 +Decide: -21 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -28 +Decide: -33 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -26 +Decide: -21 +Decide: -26 +Decide: -20 +Decide: -21 +Decide: -27 +Decide: -15 +Decide: -19 +Decide: -22 +Decide: -20 +Decide: -22 +Decide: -19 +Decide: -20 +Decide: -26 +Decide: -14 +Decide: -15 +Decide: -19 +Decide: -22 +Decide: -21 +Decide: -22 +Decide: -19 +Decide: -21 +Decide: -26 +Decide: -15 +Decide: -13 +Decide: -14 +Decide: -15 +Decide: -20 +Decide: -22 +Decide: -21 +Decide: -22 +Decide: -20 +Decide: -21 +Decide: -27 +Decide: -15 +Decide: -14 +Decide: -15 +Decide: -11 +Decide: -12 +Decide: -13 +Decide: -14 +Decide: -18 +Decide: -19 +Decide: -20 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -27 +Decide: -32 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -21 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -28 +Decide: -32 +Decide: -26 +Decide: -28 +Decide: -33 +Decide: -25 +Decide: -20 +Decide: -21 +Decide: -25 +Decide: -27 +Decide: -32 +Decide: -28 +Decide: -32 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -25 +Decide: -21 +Decide: -25 +Decide: -19 +Decide: -20 +Decide: -21 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -28 +Decide: -33 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -26 +Decide: -21 +Decide: -26 +Decide: -20 +Decide: -21 +Decide: -27 +Decide: -18 +Decide: -19 +Decide: -25 +Decide: -20 +Decide: -25 +Decide: -19 +Decide: -20 +Decide: -26 +Decide: -14 +Decide: -18 +Decide: -19 +Decide: -25 +Decide: -21 +Decide: -25 +Decide: -19 +Decide: -21 +Decide: -26 +Decide: -18 +Decide: -13 +Decide: -14 +Decide: -18 +Decide: -20 +Decide: -25 +Decide: -21 +Decide: -25 +Decide: -20 +Decide: -21 +Decide: -27 +Decide: -18 +Decide: -14 +Decide: -18 +Decide: -12 +Decide: -13 +Decide: -14 +Decide: -19 +Decide: -20 +Decide: -26 +Decide: -21 +Decide: -26 +Decide: -20 +Decide: -21 +Decide: -27 +Decide: -19 +Decide: -14 +Decide: -19 +Decide: -13 +Decide: -14 +Decide: -20 +Decide: -8 +Decide: -11 +Decide: -12 +Decide: -15 +Decide: -18 +Decide: -22 +Decide: -19 +Decide: -22 +Decide: -18 +Decide: -19 +Decide: -25 +Decide: -13 +Decide: -15 +Decide: -18 +Decide: -22 +Decide: -20 +Decide: -22 +Decide: -18 +Decide: -20 +Decide: -25 +Decide: -15 +Decide: -12 +Decide: -13 +Decide: -15 +Decide: -19 +Decide: -22 +Decide: -20 +Decide: -22 +Decide: -19 +Decide: -20 +Decide: -26 +Decide: -15 +Decide: -13 +Decide: -15 +Decide: -11 +Decide: -12 +Decide: -13 +Decide: -18 +Decide: -19 +Decide: -25 +Decide: -20 +Decide: -25 +Decide: -19 +Decide: -20 +Decide: -26 +Decide: -18 +Decide: -13 +Decide: -18 +Decide: -12 +Decide: -13 +Decide: -19 +Decide: -7 +Decide: -8 +Decide: -11 +Decide: -12 +Decide: -15 +Decide: -18 +Decide: -22 +Decide: -19 +Decide: -22 +Decide: -18 +Decide: -19 +Decide: -25 +Decide: -14 +Decide: -15 +Decide: -18 +Decide: -22 +Decide: -21 +Decide: -22 +Decide: -18 +Decide: -21 +Decide: -25 +Decide: -15 +Decide: -12 +Decide: -14 +Decide: -15 +Decide: -19 +Decide: -22 +Decide: -21 +Decide: -22 +Decide: -19 +Decide: -21 +Decide: -26 +Decide: -15 +Decide: -14 +Decide: -15 +Decide: -11 +Decide: -12 +Decide: -14 +Decide: -18 +Decide: -19 +Decide: -25 +Decide: -21 +Decide: -25 +Decide: -19 +Decide: -21 +Decide: -26 +Decide: -18 +Decide: -14 +Decide: -18 +Decide: -12 +Decide: -14 +Decide: -19 +Decide: -8 +Decide: -11 +Decide: -15 +Decide: -12 +Decide: -15 +Decide: -11 +Decide: -12 +Decide: -18 +Decide: -6 +Decide: -7 +Decide: -8 +Decide: -11 +Decide: -13 +Decide: -15 +Decide: -18 +Decide: -22 +Decide: -20 +Decide: -22 +Decide: -18 +Decide: -20 +Decide: -25 +Decide: -14 +Decide: -15 +Decide: -18 +Decide: -22 +Decide: -21 +Decide: -22 +Decide: -18 +Decide: -21 +Decide: -25 +Decide: -15 +Decide: -13 +Decide: -14 +Decide: -15 +Decide: -20 +Decide: -22 +Decide: -21 +Decide: -22 +Decide: -20 +Decide: -21 +Decide: -27 +Decide: -15 +Decide: -14 +Decide: -15 +Decide: -11 +Decide: -13 +Decide: -14 +Decide: -18 +Decide: -20 +Decide: -25 +Decide: -21 +Decide: -25 +Decide: -20 +Decide: -21 +Decide: -27 +Decide: -18 +Decide: -14 +Decide: -18 +Decide: -13 +Decide: -14 +Decide: -20 +Decide: -8 +Decide: -11 +Decide: -15 +Decide: -13 +Decide: -15 +Decide: -11 +Decide: -13 +Decide: -18 +Decide: -7 +Decide: -8 +Decide: -11 +Decide: -15 +Decide: -14 +Decide: -15 +Decide: -11 +Decide: -14 +Decide: -18 +Decide: -8 +Decide: -5 +Decide: -6 +Decide: -7 +Decide: -8 +Decide: -12 +Decide: -13 +Decide: -15 +Decide: -19 +Decide: -22 +Decide: -20 +Decide: -22 +Decide: -19 +Decide: -20 +Decide: -26 +Decide: -14 +Decide: -15 +Decide: -19 +Decide: -22 +Decide: -21 +Decide: -22 +Decide: -19 +Decide: -21 +Decide: -26 +Decide: -15 +Decide: -13 +Decide: -14 +Decide: -15 +Decide: -20 +Decide: -22 +Decide: -21 +Decide: -22 +Decide: -20 +Decide: -21 +Decide: -27 +Decide: -15 +Decide: -14 +Decide: -15 +Decide: -12 +Decide: -13 +Decide: -14 +Decide: -19 +Decide: -20 +Decide: -26 +Decide: -21 +Decide: -26 +Decide: -20 +Decide: -21 +Decide: -27 +Decide: -19 +Decide: -14 +Decide: -19 +Decide: -13 +Decide: -14 +Decide: -20 +Decide: -8 +Decide: -12 +Decide: -15 +Decide: -13 +Decide: -15 +Decide: -12 +Decide: -13 +Decide: -19 +Decide: -7 +Decide: -8 +Decide: -12 +Decide: -15 +Decide: -14 +Decide: -15 +Decide: -12 +Decide: -14 +Decide: -19 +Decide: -8 +Decide: -6 +Decide: -7 +Decide: -8 +Decide: -13 +Decide: -15 +Decide: -14 +Decide: -15 +Decide: -13 +Decide: -14 +Decide: -20 +Decide: -8 +Decide: -7 +Decide: -8 +Decide: -2 +Decide: -3 +Decide: -4 +Decide: -5 +Decide: -6 +Decide: -7 +Decide: -9 +Decide: -10 +Decide: -11 +Decide: -12 +Decide: -13 +Decide: -16 +Decide: -17 +Decide: -18 +Decide: -19 +Decide: -23 +Decide: -24 +Decide: -25 +Decide: -30 +Decide: -31 +Decide: -37 +Decide: -32 +Decide: -37 +Decide: -31 +Decide: -32 +Decide: -38 +Decide: -26 +Decide: -30 +Decide: -31 +Decide: -37 +Decide: -33 +Decide: -37 +Decide: -31 +Decide: -33 +Decide: -38 +Decide: -30 +Decide: -25 +Decide: -26 +Decide: -30 +Decide: -32 +Decide: -37 +Decide: -33 +Decide: -37 +Decide: -32 +Decide: -33 +Decide: -39 +Decide: -30 +Decide: -26 +Decide: -30 +Decide: -24 +Decide: -25 +Decide: -26 +Decide: -31 +Decide: -32 +Decide: -38 +Decide: -33 +Decide: -38 +Decide: -32 +Decide: -33 +Decide: -39 +Decide: -31 +Decide: -26 +Decide: -31 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -20 +Decide: -23 +Decide: -24 +Decide: -25 +Decide: -30 +Decide: -31 +Decide: -37 +Decide: -32 +Decide: -37 +Decide: -31 +Decide: -32 +Decide: -38 +Decide: -27 +Decide: -30 +Decide: -31 +Decide: -37 +Decide: -34 +Decide: -37 +Decide: -31 +Decide: -34 +Decide: -38 +Decide: -30 +Decide: -25 +Decide: -27 +Decide: -30 +Decide: -32 +Decide: -37 +Decide: -34 +Decide: -37 +Decide: -32 +Decide: -34 +Decide: -39 +Decide: -30 +Decide: -27 +Decide: -30 +Decide: -24 +Decide: -25 +Decide: -27 +Decide: -31 +Decide: -32 +Decide: -38 +Decide: -34 +Decide: -38 +Decide: -32 +Decide: -34 +Decide: -39 +Decide: -31 +Decide: -27 +Decide: -31 +Decide: -25 +Decide: -27 +Decide: -32 +Decide: -23 +Decide: -24 +Decide: -30 +Decide: -25 +Decide: -30 +Decide: -24 +Decide: -25 +Decide: -31 +Decide: -19 +Decide: -20 +Decide: -23 +Decide: -24 +Decide: -26 +Decide: -30 +Decide: -31 +Decide: -37 +Decide: -33 +Decide: -37 +Decide: -31 +Decide: -33 +Decide: -38 +Decide: -27 +Decide: -30 +Decide: -31 +Decide: -37 +Decide: -34 +Decide: -37 +Decide: -31 +Decide: -34 +Decide: -38 +Decide: -30 +Decide: -26 +Decide: -27 +Decide: -30 +Decide: -33 +Decide: -37 +Decide: -34 +Decide: -37 +Decide: -33 +Decide: -34 +Decide: -40 +Decide: -30 +Decide: -27 +Decide: -30 +Decide: -24 +Decide: -26 +Decide: -27 +Decide: -31 +Decide: -33 +Decide: -38 +Decide: -34 +Decide: -38 +Decide: -33 +Decide: -34 +Decide: -40 +Decide: -31 +Decide: -27 +Decide: -31 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -23 +Decide: -24 +Decide: -30 +Decide: -26 +Decide: -30 +Decide: -24 +Decide: -26 +Decide: -31 +Decide: -20 +Decide: -23 +Decide: -24 +Decide: -30 +Decide: -27 +Decide: -30 +Decide: -24 +Decide: -27 +Decide: -31 +Decide: -23 +Decide: -18 +Decide: -19 +Decide: -20 +Decide: -23 +Decide: -25 +Decide: -26 +Decide: -30 +Decide: -32 +Decide: -37 +Decide: -33 +Decide: -37 +Decide: -32 +Decide: -33 +Decide: -39 +Decide: -27 +Decide: -30 +Decide: -32 +Decide: -37 +Decide: -34 +Decide: -37 +Decide: -32 +Decide: -34 +Decide: -39 +Decide: -30 +Decide: -26 +Decide: -27 +Decide: -30 +Decide: -33 +Decide: -37 +Decide: -34 +Decide: -37 +Decide: -33 +Decide: -34 +Decide: -40 +Decide: -30 +Decide: -27 +Decide: -30 +Decide: -25 +Decide: -26 +Decide: -27 +Decide: -32 +Decide: -33 +Decide: -39 +Decide: -34 +Decide: -39 +Decide: -33 +Decide: -34 +Decide: -40 +Decide: -32 +Decide: -27 +Decide: -32 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -23 +Decide: -25 +Decide: -30 +Decide: -26 +Decide: -30 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -20 +Decide: -23 +Decide: -25 +Decide: -30 +Decide: -27 +Decide: -30 +Decide: -25 +Decide: -27 +Decide: -32 +Decide: -23 +Decide: -19 +Decide: -20 +Decide: -23 +Decide: -26 +Decide: -30 +Decide: -27 +Decide: -30 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -23 +Decide: -20 +Decide: -23 +Decide: -17 +Decide: -18 +Decide: -19 +Decide: -20 +Decide: -24 +Decide: -25 +Decide: -26 +Decide: -31 +Decide: -32 +Decide: -38 +Decide: -33 +Decide: -38 +Decide: -32 +Decide: -33 +Decide: -39 +Decide: -27 +Decide: -31 +Decide: -32 +Decide: -38 +Decide: -34 +Decide: -38 +Decide: -32 +Decide: -34 +Decide: -39 +Decide: -31 +Decide: -26 +Decide: -27 +Decide: -31 +Decide: -33 +Decide: -38 +Decide: -34 +Decide: -38 +Decide: -33 +Decide: -34 +Decide: -40 +Decide: -31 +Decide: -27 +Decide: -31 +Decide: -25 +Decide: -26 +Decide: -27 +Decide: -32 +Decide: -33 +Decide: -39 +Decide: -34 +Decide: -39 +Decide: -33 +Decide: -34 +Decide: -40 +Decide: -32 +Decide: -27 +Decide: -32 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -24 +Decide: -25 +Decide: -31 +Decide: -26 +Decide: -31 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -20 +Decide: -24 +Decide: -25 +Decide: -31 +Decide: -27 +Decide: -31 +Decide: -25 +Decide: -27 +Decide: -32 +Decide: -24 +Decide: -19 +Decide: -20 +Decide: -24 +Decide: -26 +Decide: -31 +Decide: -27 +Decide: -31 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -24 +Decide: -20 +Decide: -24 +Decide: -18 +Decide: -19 +Decide: -20 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -27 +Decide: -32 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -25 +Decide: -20 +Decide: -25 +Decide: -19 +Decide: -20 +Decide: -26 +Decide: -14 +Decide: -16 +Decide: -17 +Decide: -18 +Decide: -19 +Decide: -23 +Decide: -24 +Decide: -25 +Decide: -30 +Decide: -31 +Decide: -37 +Decide: -32 +Decide: -37 +Decide: -31 +Decide: -32 +Decide: -38 +Decide: -26 +Decide: -30 +Decide: -31 +Decide: -37 +Decide: -33 +Decide: -37 +Decide: -31 +Decide: -33 +Decide: -38 +Decide: -30 +Decide: -25 +Decide: -26 +Decide: -30 +Decide: -32 +Decide: -37 +Decide: -33 +Decide: -37 +Decide: -32 +Decide: -33 +Decide: -39 +Decide: -30 +Decide: -26 +Decide: -30 +Decide: -24 +Decide: -25 +Decide: -26 +Decide: -31 +Decide: -32 +Decide: -38 +Decide: -33 +Decide: -38 +Decide: -32 +Decide: -33 +Decide: -39 +Decide: -31 +Decide: -26 +Decide: -31 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -21 +Decide: -23 +Decide: -24 +Decide: -25 +Decide: -30 +Decide: -31 +Decide: -37 +Decide: -32 +Decide: -37 +Decide: -31 +Decide: -32 +Decide: -38 +Decide: -28 +Decide: -30 +Decide: -31 +Decide: -37 +Decide: -35 +Decide: -37 +Decide: -31 +Decide: -35 +Decide: -38 +Decide: -30 +Decide: -25 +Decide: -28 +Decide: -30 +Decide: -32 +Decide: -37 +Decide: -35 +Decide: -37 +Decide: -32 +Decide: -35 +Decide: -39 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -24 +Decide: -25 +Decide: -28 +Decide: -31 +Decide: -32 +Decide: -38 +Decide: -35 +Decide: -38 +Decide: -32 +Decide: -35 +Decide: -39 +Decide: -31 +Decide: -28 +Decide: -31 +Decide: -25 +Decide: -28 +Decide: -32 +Decide: -23 +Decide: -24 +Decide: -30 +Decide: -25 +Decide: -30 +Decide: -24 +Decide: -25 +Decide: -31 +Decide: -19 +Decide: -21 +Decide: -23 +Decide: -24 +Decide: -26 +Decide: -30 +Decide: -31 +Decide: -37 +Decide: -33 +Decide: -37 +Decide: -31 +Decide: -33 +Decide: -38 +Decide: -28 +Decide: -30 +Decide: -31 +Decide: -37 +Decide: -35 +Decide: -37 +Decide: -31 +Decide: -35 +Decide: -38 +Decide: -30 +Decide: -26 +Decide: -28 +Decide: -30 +Decide: -33 +Decide: -37 +Decide: -35 +Decide: -37 +Decide: -33 +Decide: -35 +Decide: -40 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -24 +Decide: -26 +Decide: -28 +Decide: -31 +Decide: -33 +Decide: -38 +Decide: -35 +Decide: -38 +Decide: -33 +Decide: -35 +Decide: -40 +Decide: -31 +Decide: -28 +Decide: -31 +Decide: -26 +Decide: -28 +Decide: -33 +Decide: -23 +Decide: -24 +Decide: -30 +Decide: -26 +Decide: -30 +Decide: -24 +Decide: -26 +Decide: -31 +Decide: -21 +Decide: -23 +Decide: -24 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -24 +Decide: -28 +Decide: -31 +Decide: -23 +Decide: -18 +Decide: -19 +Decide: -21 +Decide: -23 +Decide: -25 +Decide: -26 +Decide: -30 +Decide: -32 +Decide: -37 +Decide: -33 +Decide: -37 +Decide: -32 +Decide: -33 +Decide: -39 +Decide: -28 +Decide: -30 +Decide: -32 +Decide: -37 +Decide: -35 +Decide: -37 +Decide: -32 +Decide: -35 +Decide: -39 +Decide: -30 +Decide: -26 +Decide: -28 +Decide: -30 +Decide: -33 +Decide: -37 +Decide: -35 +Decide: -37 +Decide: -33 +Decide: -35 +Decide: -40 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -25 +Decide: -26 +Decide: -28 +Decide: -32 +Decide: -33 +Decide: -39 +Decide: -35 +Decide: -39 +Decide: -33 +Decide: -35 +Decide: -40 +Decide: -32 +Decide: -28 +Decide: -32 +Decide: -26 +Decide: -28 +Decide: -33 +Decide: -23 +Decide: -25 +Decide: -30 +Decide: -26 +Decide: -30 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -21 +Decide: -23 +Decide: -25 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -25 +Decide: -28 +Decide: -32 +Decide: -23 +Decide: -19 +Decide: -21 +Decide: -23 +Decide: -26 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -26 +Decide: -28 +Decide: -33 +Decide: -23 +Decide: -21 +Decide: -23 +Decide: -17 +Decide: -18 +Decide: -19 +Decide: -21 +Decide: -24 +Decide: -25 +Decide: -26 +Decide: -31 +Decide: -32 +Decide: -38 +Decide: -33 +Decide: -38 +Decide: -32 +Decide: -33 +Decide: -39 +Decide: -28 +Decide: -31 +Decide: -32 +Decide: -38 +Decide: -35 +Decide: -38 +Decide: -32 +Decide: -35 +Decide: -39 +Decide: -31 +Decide: -26 +Decide: -28 +Decide: -31 +Decide: -33 +Decide: -38 +Decide: -35 +Decide: -38 +Decide: -33 +Decide: -35 +Decide: -40 +Decide: -31 +Decide: -28 +Decide: -31 +Decide: -25 +Decide: -26 +Decide: -28 +Decide: -32 +Decide: -33 +Decide: -39 +Decide: -35 +Decide: -39 +Decide: -33 +Decide: -35 +Decide: -40 +Decide: -32 +Decide: -28 +Decide: -32 +Decide: -26 +Decide: -28 +Decide: -33 +Decide: -24 +Decide: -25 +Decide: -31 +Decide: -26 +Decide: -31 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -21 +Decide: -24 +Decide: -25 +Decide: -31 +Decide: -28 +Decide: -31 +Decide: -25 +Decide: -28 +Decide: -32 +Decide: -24 +Decide: -19 +Decide: -21 +Decide: -24 +Decide: -26 +Decide: -31 +Decide: -28 +Decide: -31 +Decide: -26 +Decide: -28 +Decide: -33 +Decide: -24 +Decide: -21 +Decide: -24 +Decide: -18 +Decide: -19 +Decide: -21 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -28 +Decide: -32 +Decide: -26 +Decide: -28 +Decide: -33 +Decide: -25 +Decide: -21 +Decide: -25 +Decide: -19 +Decide: -21 +Decide: -26 +Decide: -16 +Decide: -17 +Decide: -18 +Decide: -23 +Decide: -24 +Decide: -30 +Decide: -25 +Decide: -30 +Decide: -24 +Decide: -25 +Decide: -31 +Decide: -19 +Decide: -23 +Decide: -24 +Decide: -30 +Decide: -26 +Decide: -30 +Decide: -24 +Decide: -26 +Decide: -31 +Decide: -23 +Decide: -18 +Decide: -19 +Decide: -23 +Decide: -25 +Decide: -30 +Decide: -26 +Decide: -30 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -23 +Decide: -19 +Decide: -23 +Decide: -17 +Decide: -18 +Decide: -19 +Decide: -24 +Decide: -25 +Decide: -31 +Decide: -26 +Decide: -31 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -24 +Decide: -19 +Decide: -24 +Decide: -18 +Decide: -19 +Decide: -25 +Decide: -13 +Decide: -14 +Decide: -16 +Decide: -17 +Decide: -18 +Decide: -20 +Decide: -23 +Decide: -24 +Decide: -25 +Decide: -30 +Decide: -31 +Decide: -37 +Decide: -32 +Decide: -37 +Decide: -31 +Decide: -32 +Decide: -38 +Decide: -27 +Decide: -30 +Decide: -31 +Decide: -37 +Decide: -34 +Decide: -37 +Decide: -31 +Decide: -34 +Decide: -38 +Decide: -30 +Decide: -25 +Decide: -27 +Decide: -30 +Decide: -32 +Decide: -37 +Decide: -34 +Decide: -37 +Decide: -32 +Decide: -34 +Decide: -39 +Decide: -30 +Decide: -27 +Decide: -30 +Decide: -24 +Decide: -25 +Decide: -27 +Decide: -31 +Decide: -32 +Decide: -38 +Decide: -34 +Decide: -38 +Decide: -32 +Decide: -34 +Decide: -39 +Decide: -31 +Decide: -27 +Decide: -31 +Decide: -25 +Decide: -27 +Decide: -32 +Decide: -21 +Decide: -23 +Decide: -24 +Decide: -25 +Decide: -30 +Decide: -31 +Decide: -37 +Decide: -32 +Decide: -37 +Decide: -31 +Decide: -32 +Decide: -38 +Decide: -28 +Decide: -30 +Decide: -31 +Decide: -37 +Decide: -35 +Decide: -37 +Decide: -31 +Decide: -35 +Decide: -38 +Decide: -30 +Decide: -25 +Decide: -28 +Decide: -30 +Decide: -32 +Decide: -37 +Decide: -35 +Decide: -37 +Decide: -32 +Decide: -35 +Decide: -39 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -24 +Decide: -25 +Decide: -28 +Decide: -31 +Decide: -32 +Decide: -38 +Decide: -35 +Decide: -38 +Decide: -32 +Decide: -35 +Decide: -39 +Decide: -31 +Decide: -28 +Decide: -31 +Decide: -25 +Decide: -28 +Decide: -32 +Decide: -23 +Decide: -24 +Decide: -30 +Decide: -25 +Decide: -30 +Decide: -24 +Decide: -25 +Decide: -31 +Decide: -20 +Decide: -21 +Decide: -23 +Decide: -24 +Decide: -27 +Decide: -30 +Decide: -31 +Decide: -37 +Decide: -34 +Decide: -37 +Decide: -31 +Decide: -34 +Decide: -38 +Decide: -28 +Decide: -30 +Decide: -31 +Decide: -37 +Decide: -35 +Decide: -37 +Decide: -31 +Decide: -35 +Decide: -38 +Decide: -30 +Decide: -27 +Decide: -28 +Decide: -30 +Decide: -34 +Decide: -37 +Decide: -35 +Decide: -37 +Decide: -34 +Decide: -35 +Decide: -41 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -24 +Decide: -27 +Decide: -28 +Decide: -31 +Decide: -34 +Decide: -38 +Decide: -35 +Decide: -38 +Decide: -34 +Decide: -35 +Decide: -41 +Decide: -31 +Decide: -28 +Decide: -31 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -23 +Decide: -24 +Decide: -30 +Decide: -27 +Decide: -30 +Decide: -24 +Decide: -27 +Decide: -31 +Decide: -21 +Decide: -23 +Decide: -24 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -24 +Decide: -28 +Decide: -31 +Decide: -23 +Decide: -18 +Decide: -20 +Decide: -21 +Decide: -23 +Decide: -25 +Decide: -27 +Decide: -30 +Decide: -32 +Decide: -37 +Decide: -34 +Decide: -37 +Decide: -32 +Decide: -34 +Decide: -39 +Decide: -28 +Decide: -30 +Decide: -32 +Decide: -37 +Decide: -35 +Decide: -37 +Decide: -32 +Decide: -35 +Decide: -39 +Decide: -30 +Decide: -27 +Decide: -28 +Decide: -30 +Decide: -34 +Decide: -37 +Decide: -35 +Decide: -37 +Decide: -34 +Decide: -35 +Decide: -41 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -25 +Decide: -27 +Decide: -28 +Decide: -32 +Decide: -34 +Decide: -39 +Decide: -35 +Decide: -39 +Decide: -34 +Decide: -35 +Decide: -41 +Decide: -32 +Decide: -28 +Decide: -32 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -23 +Decide: -25 +Decide: -30 +Decide: -27 +Decide: -30 +Decide: -25 +Decide: -27 +Decide: -32 +Decide: -21 +Decide: -23 +Decide: -25 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -25 +Decide: -28 +Decide: -32 +Decide: -23 +Decide: -20 +Decide: -21 +Decide: -23 +Decide: -27 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -23 +Decide: -21 +Decide: -23 +Decide: -17 +Decide: -18 +Decide: -20 +Decide: -21 +Decide: -24 +Decide: -25 +Decide: -27 +Decide: -31 +Decide: -32 +Decide: -38 +Decide: -34 +Decide: -38 +Decide: -32 +Decide: -34 +Decide: -39 +Decide: -28 +Decide: -31 +Decide: -32 +Decide: -38 +Decide: -35 +Decide: -38 +Decide: -32 +Decide: -35 +Decide: -39 +Decide: -31 +Decide: -27 +Decide: -28 +Decide: -31 +Decide: -34 +Decide: -38 +Decide: -35 +Decide: -38 +Decide: -34 +Decide: -35 +Decide: -41 +Decide: -31 +Decide: -28 +Decide: -31 +Decide: -25 +Decide: -27 +Decide: -28 +Decide: -32 +Decide: -34 +Decide: -39 +Decide: -35 +Decide: -39 +Decide: -34 +Decide: -35 +Decide: -41 +Decide: -32 +Decide: -28 +Decide: -32 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -24 +Decide: -25 +Decide: -31 +Decide: -27 +Decide: -31 +Decide: -25 +Decide: -27 +Decide: -32 +Decide: -21 +Decide: -24 +Decide: -25 +Decide: -31 +Decide: -28 +Decide: -31 +Decide: -25 +Decide: -28 +Decide: -32 +Decide: -24 +Decide: -20 +Decide: -21 +Decide: -24 +Decide: -27 +Decide: -31 +Decide: -28 +Decide: -31 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -24 +Decide: -21 +Decide: -24 +Decide: -18 +Decide: -20 +Decide: -21 +Decide: -25 +Decide: -27 +Decide: -32 +Decide: -28 +Decide: -32 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -25 +Decide: -21 +Decide: -25 +Decide: -20 +Decide: -21 +Decide: -27 +Decide: -16 +Decide: -17 +Decide: -18 +Decide: -23 +Decide: -24 +Decide: -30 +Decide: -25 +Decide: -30 +Decide: -24 +Decide: -25 +Decide: -31 +Decide: -20 +Decide: -23 +Decide: -24 +Decide: -30 +Decide: -27 +Decide: -30 +Decide: -24 +Decide: -27 +Decide: -31 +Decide: -23 +Decide: -18 +Decide: -20 +Decide: -23 +Decide: -25 +Decide: -30 +Decide: -27 +Decide: -30 +Decide: -25 +Decide: -27 +Decide: -32 +Decide: -23 +Decide: -20 +Decide: -23 +Decide: -17 +Decide: -18 +Decide: -20 +Decide: -24 +Decide: -25 +Decide: -31 +Decide: -27 +Decide: -31 +Decide: -25 +Decide: -27 +Decide: -32 +Decide: -24 +Decide: -20 +Decide: -24 +Decide: -18 +Decide: -20 +Decide: -25 +Decide: -14 +Decide: -16 +Decide: -17 +Decide: -18 +Decide: -23 +Decide: -24 +Decide: -30 +Decide: -25 +Decide: -30 +Decide: -24 +Decide: -25 +Decide: -31 +Decide: -21 +Decide: -23 +Decide: -24 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -24 +Decide: -28 +Decide: -31 +Decide: -23 +Decide: -18 +Decide: -21 +Decide: -23 +Decide: -25 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -25 +Decide: -28 +Decide: -32 +Decide: -23 +Decide: -21 +Decide: -23 +Decide: -17 +Decide: -18 +Decide: -21 +Decide: -24 +Decide: -25 +Decide: -31 +Decide: -28 +Decide: -31 +Decide: -25 +Decide: -28 +Decide: -32 +Decide: -24 +Decide: -21 +Decide: -24 +Decide: -18 +Decide: -21 +Decide: -25 +Decide: -16 +Decide: -17 +Decide: -23 +Decide: -18 +Decide: -23 +Decide: -17 +Decide: -18 +Decide: -24 +Decide: -12 +Decide: -13 +Decide: -14 +Decide: -16 +Decide: -17 +Decide: -19 +Decide: -20 +Decide: -23 +Decide: -24 +Decide: -26 +Decide: -30 +Decide: -31 +Decide: -37 +Decide: -33 +Decide: -37 +Decide: -31 +Decide: -33 +Decide: -38 +Decide: -27 +Decide: -30 +Decide: -31 +Decide: -37 +Decide: -34 +Decide: -37 +Decide: -31 +Decide: -34 +Decide: -38 +Decide: -30 +Decide: -26 +Decide: -27 +Decide: -30 +Decide: -33 +Decide: -37 +Decide: -34 +Decide: -37 +Decide: -33 +Decide: -34 +Decide: -40 +Decide: -30 +Decide: -27 +Decide: -30 +Decide: -24 +Decide: -26 +Decide: -27 +Decide: -31 +Decide: -33 +Decide: -38 +Decide: -34 +Decide: -38 +Decide: -33 +Decide: -34 +Decide: -40 +Decide: -31 +Decide: -27 +Decide: -31 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -21 +Decide: -23 +Decide: -24 +Decide: -26 +Decide: -30 +Decide: -31 +Decide: -37 +Decide: -33 +Decide: -37 +Decide: -31 +Decide: -33 +Decide: -38 +Decide: -28 +Decide: -30 +Decide: -31 +Decide: -37 +Decide: -35 +Decide: -37 +Decide: -31 +Decide: -35 +Decide: -38 +Decide: -30 +Decide: -26 +Decide: -28 +Decide: -30 +Decide: -33 +Decide: -37 +Decide: -35 +Decide: -37 +Decide: -33 +Decide: -35 +Decide: -40 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -24 +Decide: -26 +Decide: -28 +Decide: -31 +Decide: -33 +Decide: -38 +Decide: -35 +Decide: -38 +Decide: -33 +Decide: -35 +Decide: -40 +Decide: -31 +Decide: -28 +Decide: -31 +Decide: -26 +Decide: -28 +Decide: -33 +Decide: -23 +Decide: -24 +Decide: -30 +Decide: -26 +Decide: -30 +Decide: -24 +Decide: -26 +Decide: -31 +Decide: -20 +Decide: -21 +Decide: -23 +Decide: -24 +Decide: -27 +Decide: -30 +Decide: -31 +Decide: -37 +Decide: -34 +Decide: -37 +Decide: -31 +Decide: -34 +Decide: -38 +Decide: -28 +Decide: -30 +Decide: -31 +Decide: -37 +Decide: -35 +Decide: -37 +Decide: -31 +Decide: -35 +Decide: -38 +Decide: -30 +Decide: -27 +Decide: -28 +Decide: -30 +Decide: -34 +Decide: -37 +Decide: -35 +Decide: -37 +Decide: -34 +Decide: -35 +Decide: -41 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -24 +Decide: -27 +Decide: -28 +Decide: -31 +Decide: -34 +Decide: -38 +Decide: -35 +Decide: -38 +Decide: -34 +Decide: -35 +Decide: -41 +Decide: -31 +Decide: -28 +Decide: -31 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -23 +Decide: -24 +Decide: -30 +Decide: -27 +Decide: -30 +Decide: -24 +Decide: -27 +Decide: -31 +Decide: -21 +Decide: -23 +Decide: -24 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -24 +Decide: -28 +Decide: -31 +Decide: -23 +Decide: -19 +Decide: -20 +Decide: -21 +Decide: -23 +Decide: -26 +Decide: -27 +Decide: -30 +Decide: -33 +Decide: -37 +Decide: -34 +Decide: -37 +Decide: -33 +Decide: -34 +Decide: -40 +Decide: -28 +Decide: -30 +Decide: -33 +Decide: -37 +Decide: -35 +Decide: -37 +Decide: -33 +Decide: -35 +Decide: -40 +Decide: -30 +Decide: -27 +Decide: -28 +Decide: -30 +Decide: -34 +Decide: -37 +Decide: -35 +Decide: -37 +Decide: -34 +Decide: -35 +Decide: -41 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -26 +Decide: -27 +Decide: -28 +Decide: -33 +Decide: -34 +Decide: -40 +Decide: -35 +Decide: -40 +Decide: -34 +Decide: -35 +Decide: -41 +Decide: -33 +Decide: -28 +Decide: -33 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -23 +Decide: -26 +Decide: -30 +Decide: -27 +Decide: -30 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -21 +Decide: -23 +Decide: -26 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -26 +Decide: -28 +Decide: -33 +Decide: -23 +Decide: -20 +Decide: -21 +Decide: -23 +Decide: -27 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -23 +Decide: -21 +Decide: -23 +Decide: -17 +Decide: -19 +Decide: -20 +Decide: -21 +Decide: -24 +Decide: -26 +Decide: -27 +Decide: -31 +Decide: -33 +Decide: -38 +Decide: -34 +Decide: -38 +Decide: -33 +Decide: -34 +Decide: -40 +Decide: -28 +Decide: -31 +Decide: -33 +Decide: -38 +Decide: -35 +Decide: -38 +Decide: -33 +Decide: -35 +Decide: -40 +Decide: -31 +Decide: -27 +Decide: -28 +Decide: -31 +Decide: -34 +Decide: -38 +Decide: -35 +Decide: -38 +Decide: -34 +Decide: -35 +Decide: -41 +Decide: -31 +Decide: -28 +Decide: -31 +Decide: -26 +Decide: -27 +Decide: -28 +Decide: -33 +Decide: -34 +Decide: -40 +Decide: -35 +Decide: -40 +Decide: -34 +Decide: -35 +Decide: -41 +Decide: -33 +Decide: -28 +Decide: -33 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -24 +Decide: -26 +Decide: -31 +Decide: -27 +Decide: -31 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -21 +Decide: -24 +Decide: -26 +Decide: -31 +Decide: -28 +Decide: -31 +Decide: -26 +Decide: -28 +Decide: -33 +Decide: -24 +Decide: -20 +Decide: -21 +Decide: -24 +Decide: -27 +Decide: -31 +Decide: -28 +Decide: -31 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -24 +Decide: -21 +Decide: -24 +Decide: -19 +Decide: -20 +Decide: -21 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -28 +Decide: -33 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -26 +Decide: -21 +Decide: -26 +Decide: -20 +Decide: -21 +Decide: -27 +Decide: -16 +Decide: -17 +Decide: -19 +Decide: -23 +Decide: -24 +Decide: -30 +Decide: -26 +Decide: -30 +Decide: -24 +Decide: -26 +Decide: -31 +Decide: -20 +Decide: -23 +Decide: -24 +Decide: -30 +Decide: -27 +Decide: -30 +Decide: -24 +Decide: -27 +Decide: -31 +Decide: -23 +Decide: -19 +Decide: -20 +Decide: -23 +Decide: -26 +Decide: -30 +Decide: -27 +Decide: -30 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -23 +Decide: -20 +Decide: -23 +Decide: -17 +Decide: -19 +Decide: -20 +Decide: -24 +Decide: -26 +Decide: -31 +Decide: -27 +Decide: -31 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -24 +Decide: -20 +Decide: -24 +Decide: -19 +Decide: -20 +Decide: -26 +Decide: -14 +Decide: -16 +Decide: -17 +Decide: -19 +Decide: -23 +Decide: -24 +Decide: -30 +Decide: -26 +Decide: -30 +Decide: -24 +Decide: -26 +Decide: -31 +Decide: -21 +Decide: -23 +Decide: -24 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -24 +Decide: -28 +Decide: -31 +Decide: -23 +Decide: -19 +Decide: -21 +Decide: -23 +Decide: -26 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -26 +Decide: -28 +Decide: -33 +Decide: -23 +Decide: -21 +Decide: -23 +Decide: -17 +Decide: -19 +Decide: -21 +Decide: -24 +Decide: -26 +Decide: -31 +Decide: -28 +Decide: -31 +Decide: -26 +Decide: -28 +Decide: -33 +Decide: -24 +Decide: -21 +Decide: -24 +Decide: -19 +Decide: -21 +Decide: -26 +Decide: -16 +Decide: -17 +Decide: -23 +Decide: -19 +Decide: -23 +Decide: -17 +Decide: -19 +Decide: -24 +Decide: -13 +Decide: -14 +Decide: -16 +Decide: -17 +Decide: -20 +Decide: -23 +Decide: -24 +Decide: -30 +Decide: -27 +Decide: -30 +Decide: -24 +Decide: -27 +Decide: -31 +Decide: -21 +Decide: -23 +Decide: -24 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -24 +Decide: -28 +Decide: -31 +Decide: -23 +Decide: -20 +Decide: -21 +Decide: -23 +Decide: -27 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -23 +Decide: -21 +Decide: -23 +Decide: -17 +Decide: -20 +Decide: -21 +Decide: -24 +Decide: -27 +Decide: -31 +Decide: -28 +Decide: -31 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -24 +Decide: -21 +Decide: -24 +Decide: -20 +Decide: -21 +Decide: -27 +Decide: -16 +Decide: -17 +Decide: -23 +Decide: -20 +Decide: -23 +Decide: -17 +Decide: -20 +Decide: -24 +Decide: -14 +Decide: -16 +Decide: -17 +Decide: -23 +Decide: -21 +Decide: -23 +Decide: -17 +Decide: -21 +Decide: -24 +Decide: -16 +Decide: -11 +Decide: -12 +Decide: -13 +Decide: -14 +Decide: -16 +Decide: -18 +Decide: -19 +Decide: -20 +Decide: -23 +Decide: -25 +Decide: -26 +Decide: -30 +Decide: -32 +Decide: -37 +Decide: -33 +Decide: -37 +Decide: -32 +Decide: -33 +Decide: -39 +Decide: -27 +Decide: -30 +Decide: -32 +Decide: -37 +Decide: -34 +Decide: -37 +Decide: -32 +Decide: -34 +Decide: -39 +Decide: -30 +Decide: -26 +Decide: -27 +Decide: -30 +Decide: -33 +Decide: -37 +Decide: -34 +Decide: -37 +Decide: -33 +Decide: -34 +Decide: -40 +Decide: -30 +Decide: -27 +Decide: -30 +Decide: -25 +Decide: -26 +Decide: -27 +Decide: -32 +Decide: -33 +Decide: -39 +Decide: -34 +Decide: -39 +Decide: -33 +Decide: -34 +Decide: -40 +Decide: -32 +Decide: -27 +Decide: -32 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -21 +Decide: -23 +Decide: -25 +Decide: -26 +Decide: -30 +Decide: -32 +Decide: -37 +Decide: -33 +Decide: -37 +Decide: -32 +Decide: -33 +Decide: -39 +Decide: -28 +Decide: -30 +Decide: -32 +Decide: -37 +Decide: -35 +Decide: -37 +Decide: -32 +Decide: -35 +Decide: -39 +Decide: -30 +Decide: -26 +Decide: -28 +Decide: -30 +Decide: -33 +Decide: -37 +Decide: -35 +Decide: -37 +Decide: -33 +Decide: -35 +Decide: -40 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -25 +Decide: -26 +Decide: -28 +Decide: -32 +Decide: -33 +Decide: -39 +Decide: -35 +Decide: -39 +Decide: -33 +Decide: -35 +Decide: -40 +Decide: -32 +Decide: -28 +Decide: -32 +Decide: -26 +Decide: -28 +Decide: -33 +Decide: -23 +Decide: -25 +Decide: -30 +Decide: -26 +Decide: -30 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -20 +Decide: -21 +Decide: -23 +Decide: -25 +Decide: -27 +Decide: -30 +Decide: -32 +Decide: -37 +Decide: -34 +Decide: -37 +Decide: -32 +Decide: -34 +Decide: -39 +Decide: -28 +Decide: -30 +Decide: -32 +Decide: -37 +Decide: -35 +Decide: -37 +Decide: -32 +Decide: -35 +Decide: -39 +Decide: -30 +Decide: -27 +Decide: -28 +Decide: -30 +Decide: -34 +Decide: -37 +Decide: -35 +Decide: -37 +Decide: -34 +Decide: -35 +Decide: -41 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -25 +Decide: -27 +Decide: -28 +Decide: -32 +Decide: -34 +Decide: -39 +Decide: -35 +Decide: -39 +Decide: -34 +Decide: -35 +Decide: -41 +Decide: -32 +Decide: -28 +Decide: -32 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -23 +Decide: -25 +Decide: -30 +Decide: -27 +Decide: -30 +Decide: -25 +Decide: -27 +Decide: -32 +Decide: -21 +Decide: -23 +Decide: -25 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -25 +Decide: -28 +Decide: -32 +Decide: -23 +Decide: -19 +Decide: -20 +Decide: -21 +Decide: -23 +Decide: -26 +Decide: -27 +Decide: -30 +Decide: -33 +Decide: -37 +Decide: -34 +Decide: -37 +Decide: -33 +Decide: -34 +Decide: -40 +Decide: -28 +Decide: -30 +Decide: -33 +Decide: -37 +Decide: -35 +Decide: -37 +Decide: -33 +Decide: -35 +Decide: -40 +Decide: -30 +Decide: -27 +Decide: -28 +Decide: -30 +Decide: -34 +Decide: -37 +Decide: -35 +Decide: -37 +Decide: -34 +Decide: -35 +Decide: -41 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -26 +Decide: -27 +Decide: -28 +Decide: -33 +Decide: -34 +Decide: -40 +Decide: -35 +Decide: -40 +Decide: -34 +Decide: -35 +Decide: -41 +Decide: -33 +Decide: -28 +Decide: -33 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -23 +Decide: -26 +Decide: -30 +Decide: -27 +Decide: -30 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -21 +Decide: -23 +Decide: -26 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -26 +Decide: -28 +Decide: -33 +Decide: -23 +Decide: -20 +Decide: -21 +Decide: -23 +Decide: -27 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -23 +Decide: -21 +Decide: -23 +Decide: -18 +Decide: -19 +Decide: -20 +Decide: -21 +Decide: -25 +Decide: -26 +Decide: -27 +Decide: -32 +Decide: -33 +Decide: -39 +Decide: -34 +Decide: -39 +Decide: -33 +Decide: -34 +Decide: -40 +Decide: -28 +Decide: -32 +Decide: -33 +Decide: -39 +Decide: -35 +Decide: -39 +Decide: -33 +Decide: -35 +Decide: -40 +Decide: -32 +Decide: -27 +Decide: -28 +Decide: -32 +Decide: -34 +Decide: -39 +Decide: -35 +Decide: -39 +Decide: -34 +Decide: -35 +Decide: -41 +Decide: -32 +Decide: -28 +Decide: -32 +Decide: -26 +Decide: -27 +Decide: -28 +Decide: -33 +Decide: -34 +Decide: -40 +Decide: -35 +Decide: -40 +Decide: -34 +Decide: -35 +Decide: -41 +Decide: -33 +Decide: -28 +Decide: -33 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -27 +Decide: -32 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -21 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -28 +Decide: -32 +Decide: -26 +Decide: -28 +Decide: -33 +Decide: -25 +Decide: -20 +Decide: -21 +Decide: -25 +Decide: -27 +Decide: -32 +Decide: -28 +Decide: -32 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -25 +Decide: -21 +Decide: -25 +Decide: -19 +Decide: -20 +Decide: -21 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -28 +Decide: -33 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -26 +Decide: -21 +Decide: -26 +Decide: -20 +Decide: -21 +Decide: -27 +Decide: -16 +Decide: -18 +Decide: -19 +Decide: -23 +Decide: -25 +Decide: -30 +Decide: -26 +Decide: -30 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -20 +Decide: -23 +Decide: -25 +Decide: -30 +Decide: -27 +Decide: -30 +Decide: -25 +Decide: -27 +Decide: -32 +Decide: -23 +Decide: -19 +Decide: -20 +Decide: -23 +Decide: -26 +Decide: -30 +Decide: -27 +Decide: -30 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -23 +Decide: -20 +Decide: -23 +Decide: -18 +Decide: -19 +Decide: -20 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -27 +Decide: -32 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -25 +Decide: -20 +Decide: -25 +Decide: -19 +Decide: -20 +Decide: -26 +Decide: -14 +Decide: -16 +Decide: -18 +Decide: -19 +Decide: -23 +Decide: -25 +Decide: -30 +Decide: -26 +Decide: -30 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -21 +Decide: -23 +Decide: -25 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -25 +Decide: -28 +Decide: -32 +Decide: -23 +Decide: -19 +Decide: -21 +Decide: -23 +Decide: -26 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -26 +Decide: -28 +Decide: -33 +Decide: -23 +Decide: -21 +Decide: -23 +Decide: -18 +Decide: -19 +Decide: -21 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -28 +Decide: -32 +Decide: -26 +Decide: -28 +Decide: -33 +Decide: -25 +Decide: -21 +Decide: -25 +Decide: -19 +Decide: -21 +Decide: -26 +Decide: -16 +Decide: -18 +Decide: -23 +Decide: -19 +Decide: -23 +Decide: -18 +Decide: -19 +Decide: -25 +Decide: -13 +Decide: -14 +Decide: -16 +Decide: -18 +Decide: -20 +Decide: -23 +Decide: -25 +Decide: -30 +Decide: -27 +Decide: -30 +Decide: -25 +Decide: -27 +Decide: -32 +Decide: -21 +Decide: -23 +Decide: -25 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -25 +Decide: -28 +Decide: -32 +Decide: -23 +Decide: -20 +Decide: -21 +Decide: -23 +Decide: -27 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -23 +Decide: -21 +Decide: -23 +Decide: -18 +Decide: -20 +Decide: -21 +Decide: -25 +Decide: -27 +Decide: -32 +Decide: -28 +Decide: -32 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -25 +Decide: -21 +Decide: -25 +Decide: -20 +Decide: -21 +Decide: -27 +Decide: -16 +Decide: -18 +Decide: -23 +Decide: -20 +Decide: -23 +Decide: -18 +Decide: -20 +Decide: -25 +Decide: -14 +Decide: -16 +Decide: -18 +Decide: -23 +Decide: -21 +Decide: -23 +Decide: -18 +Decide: -21 +Decide: -25 +Decide: -16 +Decide: -12 +Decide: -13 +Decide: -14 +Decide: -16 +Decide: -19 +Decide: -20 +Decide: -23 +Decide: -26 +Decide: -30 +Decide: -27 +Decide: -30 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -21 +Decide: -23 +Decide: -26 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -26 +Decide: -28 +Decide: -33 +Decide: -23 +Decide: -20 +Decide: -21 +Decide: -23 +Decide: -27 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -23 +Decide: -21 +Decide: -23 +Decide: -19 +Decide: -20 +Decide: -21 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -28 +Decide: -33 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -26 +Decide: -21 +Decide: -26 +Decide: -20 +Decide: -21 +Decide: -27 +Decide: -16 +Decide: -19 +Decide: -23 +Decide: -20 +Decide: -23 +Decide: -19 +Decide: -20 +Decide: -26 +Decide: -14 +Decide: -16 +Decide: -19 +Decide: -23 +Decide: -21 +Decide: -23 +Decide: -19 +Decide: -21 +Decide: -26 +Decide: -16 +Decide: -13 +Decide: -14 +Decide: -16 +Decide: -20 +Decide: -23 +Decide: -21 +Decide: -23 +Decide: -20 +Decide: -21 +Decide: -27 +Decide: -16 +Decide: -14 +Decide: -16 +Decide: -10 +Decide: -11 +Decide: -12 +Decide: -13 +Decide: -14 +Decide: -17 +Decide: -18 +Decide: -19 +Decide: -20 +Decide: -24 +Decide: -25 +Decide: -26 +Decide: -31 +Decide: -32 +Decide: -38 +Decide: -33 +Decide: -38 +Decide: -32 +Decide: -33 +Decide: -39 +Decide: -27 +Decide: -31 +Decide: -32 +Decide: -38 +Decide: -34 +Decide: -38 +Decide: -32 +Decide: -34 +Decide: -39 +Decide: -31 +Decide: -26 +Decide: -27 +Decide: -31 +Decide: -33 +Decide: -38 +Decide: -34 +Decide: -38 +Decide: -33 +Decide: -34 +Decide: -40 +Decide: -31 +Decide: -27 +Decide: -31 +Decide: -25 +Decide: -26 +Decide: -27 +Decide: -32 +Decide: -33 +Decide: -39 +Decide: -34 +Decide: -39 +Decide: -33 +Decide: -34 +Decide: -40 +Decide: -32 +Decide: -27 +Decide: -32 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -21 +Decide: -24 +Decide: -25 +Decide: -26 +Decide: -31 +Decide: -32 +Decide: -38 +Decide: -33 +Decide: -38 +Decide: -32 +Decide: -33 +Decide: -39 +Decide: -28 +Decide: -31 +Decide: -32 +Decide: -38 +Decide: -35 +Decide: -38 +Decide: -32 +Decide: -35 +Decide: -39 +Decide: -31 +Decide: -26 +Decide: -28 +Decide: -31 +Decide: -33 +Decide: -38 +Decide: -35 +Decide: -38 +Decide: -33 +Decide: -35 +Decide: -40 +Decide: -31 +Decide: -28 +Decide: -31 +Decide: -25 +Decide: -26 +Decide: -28 +Decide: -32 +Decide: -33 +Decide: -39 +Decide: -35 +Decide: -39 +Decide: -33 +Decide: -35 +Decide: -40 +Decide: -32 +Decide: -28 +Decide: -32 +Decide: -26 +Decide: -28 +Decide: -33 +Decide: -24 +Decide: -25 +Decide: -31 +Decide: -26 +Decide: -31 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -20 +Decide: -21 +Decide: -24 +Decide: -25 +Decide: -27 +Decide: -31 +Decide: -32 +Decide: -38 +Decide: -34 +Decide: -38 +Decide: -32 +Decide: -34 +Decide: -39 +Decide: -28 +Decide: -31 +Decide: -32 +Decide: -38 +Decide: -35 +Decide: -38 +Decide: -32 +Decide: -35 +Decide: -39 +Decide: -31 +Decide: -27 +Decide: -28 +Decide: -31 +Decide: -34 +Decide: -38 +Decide: -35 +Decide: -38 +Decide: -34 +Decide: -35 +Decide: -41 +Decide: -31 +Decide: -28 +Decide: -31 +Decide: -25 +Decide: -27 +Decide: -28 +Decide: -32 +Decide: -34 +Decide: -39 +Decide: -35 +Decide: -39 +Decide: -34 +Decide: -35 +Decide: -41 +Decide: -32 +Decide: -28 +Decide: -32 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -24 +Decide: -25 +Decide: -31 +Decide: -27 +Decide: -31 +Decide: -25 +Decide: -27 +Decide: -32 +Decide: -21 +Decide: -24 +Decide: -25 +Decide: -31 +Decide: -28 +Decide: -31 +Decide: -25 +Decide: -28 +Decide: -32 +Decide: -24 +Decide: -19 +Decide: -20 +Decide: -21 +Decide: -24 +Decide: -26 +Decide: -27 +Decide: -31 +Decide: -33 +Decide: -38 +Decide: -34 +Decide: -38 +Decide: -33 +Decide: -34 +Decide: -40 +Decide: -28 +Decide: -31 +Decide: -33 +Decide: -38 +Decide: -35 +Decide: -38 +Decide: -33 +Decide: -35 +Decide: -40 +Decide: -31 +Decide: -27 +Decide: -28 +Decide: -31 +Decide: -34 +Decide: -38 +Decide: -35 +Decide: -38 +Decide: -34 +Decide: -35 +Decide: -41 +Decide: -31 +Decide: -28 +Decide: -31 +Decide: -26 +Decide: -27 +Decide: -28 +Decide: -33 +Decide: -34 +Decide: -40 +Decide: -35 +Decide: -40 +Decide: -34 +Decide: -35 +Decide: -41 +Decide: -33 +Decide: -28 +Decide: -33 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -24 +Decide: -26 +Decide: -31 +Decide: -27 +Decide: -31 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -21 +Decide: -24 +Decide: -26 +Decide: -31 +Decide: -28 +Decide: -31 +Decide: -26 +Decide: -28 +Decide: -33 +Decide: -24 +Decide: -20 +Decide: -21 +Decide: -24 +Decide: -27 +Decide: -31 +Decide: -28 +Decide: -31 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -24 +Decide: -21 +Decide: -24 +Decide: -18 +Decide: -19 +Decide: -20 +Decide: -21 +Decide: -25 +Decide: -26 +Decide: -27 +Decide: -32 +Decide: -33 +Decide: -39 +Decide: -34 +Decide: -39 +Decide: -33 +Decide: -34 +Decide: -40 +Decide: -28 +Decide: -32 +Decide: -33 +Decide: -39 +Decide: -35 +Decide: -39 +Decide: -33 +Decide: -35 +Decide: -40 +Decide: -32 +Decide: -27 +Decide: -28 +Decide: -32 +Decide: -34 +Decide: -39 +Decide: -35 +Decide: -39 +Decide: -34 +Decide: -35 +Decide: -41 +Decide: -32 +Decide: -28 +Decide: -32 +Decide: -26 +Decide: -27 +Decide: -28 +Decide: -33 +Decide: -34 +Decide: -40 +Decide: -35 +Decide: -40 +Decide: -34 +Decide: -35 +Decide: -41 +Decide: -33 +Decide: -28 +Decide: -33 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -27 +Decide: -32 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -21 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -28 +Decide: -32 +Decide: -26 +Decide: -28 +Decide: -33 +Decide: -25 +Decide: -20 +Decide: -21 +Decide: -25 +Decide: -27 +Decide: -32 +Decide: -28 +Decide: -32 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -25 +Decide: -21 +Decide: -25 +Decide: -19 +Decide: -20 +Decide: -21 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -28 +Decide: -33 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -26 +Decide: -21 +Decide: -26 +Decide: -20 +Decide: -21 +Decide: -27 +Decide: -17 +Decide: -18 +Decide: -19 +Decide: -24 +Decide: -25 +Decide: -31 +Decide: -26 +Decide: -31 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -20 +Decide: -24 +Decide: -25 +Decide: -31 +Decide: -27 +Decide: -31 +Decide: -25 +Decide: -27 +Decide: -32 +Decide: -24 +Decide: -19 +Decide: -20 +Decide: -24 +Decide: -26 +Decide: -31 +Decide: -27 +Decide: -31 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -24 +Decide: -20 +Decide: -24 +Decide: -18 +Decide: -19 +Decide: -20 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -27 +Decide: -32 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -25 +Decide: -20 +Decide: -25 +Decide: -19 +Decide: -20 +Decide: -26 +Decide: -14 +Decide: -17 +Decide: -18 +Decide: -19 +Decide: -24 +Decide: -25 +Decide: -31 +Decide: -26 +Decide: -31 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -21 +Decide: -24 +Decide: -25 +Decide: -31 +Decide: -28 +Decide: -31 +Decide: -25 +Decide: -28 +Decide: -32 +Decide: -24 +Decide: -19 +Decide: -21 +Decide: -24 +Decide: -26 +Decide: -31 +Decide: -28 +Decide: -31 +Decide: -26 +Decide: -28 +Decide: -33 +Decide: -24 +Decide: -21 +Decide: -24 +Decide: -18 +Decide: -19 +Decide: -21 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -28 +Decide: -32 +Decide: -26 +Decide: -28 +Decide: -33 +Decide: -25 +Decide: -21 +Decide: -25 +Decide: -19 +Decide: -21 +Decide: -26 +Decide: -17 +Decide: -18 +Decide: -24 +Decide: -19 +Decide: -24 +Decide: -18 +Decide: -19 +Decide: -25 +Decide: -13 +Decide: -14 +Decide: -17 +Decide: -18 +Decide: -20 +Decide: -24 +Decide: -25 +Decide: -31 +Decide: -27 +Decide: -31 +Decide: -25 +Decide: -27 +Decide: -32 +Decide: -21 +Decide: -24 +Decide: -25 +Decide: -31 +Decide: -28 +Decide: -31 +Decide: -25 +Decide: -28 +Decide: -32 +Decide: -24 +Decide: -20 +Decide: -21 +Decide: -24 +Decide: -27 +Decide: -31 +Decide: -28 +Decide: -31 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -24 +Decide: -21 +Decide: -24 +Decide: -18 +Decide: -20 +Decide: -21 +Decide: -25 +Decide: -27 +Decide: -32 +Decide: -28 +Decide: -32 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -25 +Decide: -21 +Decide: -25 +Decide: -20 +Decide: -21 +Decide: -27 +Decide: -17 +Decide: -18 +Decide: -24 +Decide: -20 +Decide: -24 +Decide: -18 +Decide: -20 +Decide: -25 +Decide: -14 +Decide: -17 +Decide: -18 +Decide: -24 +Decide: -21 +Decide: -24 +Decide: -18 +Decide: -21 +Decide: -25 +Decide: -17 +Decide: -12 +Decide: -13 +Decide: -14 +Decide: -17 +Decide: -19 +Decide: -20 +Decide: -24 +Decide: -26 +Decide: -31 +Decide: -27 +Decide: -31 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -21 +Decide: -24 +Decide: -26 +Decide: -31 +Decide: -28 +Decide: -31 +Decide: -26 +Decide: -28 +Decide: -33 +Decide: -24 +Decide: -20 +Decide: -21 +Decide: -24 +Decide: -27 +Decide: -31 +Decide: -28 +Decide: -31 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -24 +Decide: -21 +Decide: -24 +Decide: -19 +Decide: -20 +Decide: -21 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -28 +Decide: -33 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -26 +Decide: -21 +Decide: -26 +Decide: -20 +Decide: -21 +Decide: -27 +Decide: -17 +Decide: -19 +Decide: -24 +Decide: -20 +Decide: -24 +Decide: -19 +Decide: -20 +Decide: -26 +Decide: -14 +Decide: -17 +Decide: -19 +Decide: -24 +Decide: -21 +Decide: -24 +Decide: -19 +Decide: -21 +Decide: -26 +Decide: -17 +Decide: -13 +Decide: -14 +Decide: -17 +Decide: -20 +Decide: -24 +Decide: -21 +Decide: -24 +Decide: -20 +Decide: -21 +Decide: -27 +Decide: -17 +Decide: -14 +Decide: -17 +Decide: -11 +Decide: -12 +Decide: -13 +Decide: -14 +Decide: -18 +Decide: -19 +Decide: -20 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -27 +Decide: -32 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -21 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -28 +Decide: -32 +Decide: -26 +Decide: -28 +Decide: -33 +Decide: -25 +Decide: -20 +Decide: -21 +Decide: -25 +Decide: -27 +Decide: -32 +Decide: -28 +Decide: -32 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -25 +Decide: -21 +Decide: -25 +Decide: -19 +Decide: -20 +Decide: -21 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -28 +Decide: -33 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -26 +Decide: -21 +Decide: -26 +Decide: -20 +Decide: -21 +Decide: -27 +Decide: -18 +Decide: -19 +Decide: -25 +Decide: -20 +Decide: -25 +Decide: -19 +Decide: -20 +Decide: -26 +Decide: -14 +Decide: -18 +Decide: -19 +Decide: -25 +Decide: -21 +Decide: -25 +Decide: -19 +Decide: -21 +Decide: -26 +Decide: -18 +Decide: -13 +Decide: -14 +Decide: -18 +Decide: -20 +Decide: -25 +Decide: -21 +Decide: -25 +Decide: -20 +Decide: -21 +Decide: -27 +Decide: -18 +Decide: -14 +Decide: -18 +Decide: -12 +Decide: -13 +Decide: -14 +Decide: -19 +Decide: -20 +Decide: -26 +Decide: -21 +Decide: -26 +Decide: -20 +Decide: -21 +Decide: -27 +Decide: -19 +Decide: -14 +Decide: -19 +Decide: -13 +Decide: -14 +Decide: -20 +Decide: -9 +Decide: -10 +Decide: -11 +Decide: -12 +Decide: -16 +Decide: -17 +Decide: -18 +Decide: -23 +Decide: -24 +Decide: -30 +Decide: -25 +Decide: -30 +Decide: -24 +Decide: -25 +Decide: -31 +Decide: -19 +Decide: -23 +Decide: -24 +Decide: -30 +Decide: -26 +Decide: -30 +Decide: -24 +Decide: -26 +Decide: -31 +Decide: -23 +Decide: -18 +Decide: -19 +Decide: -23 +Decide: -25 +Decide: -30 +Decide: -26 +Decide: -30 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -23 +Decide: -19 +Decide: -23 +Decide: -17 +Decide: -18 +Decide: -19 +Decide: -24 +Decide: -25 +Decide: -31 +Decide: -26 +Decide: -31 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -24 +Decide: -19 +Decide: -24 +Decide: -18 +Decide: -19 +Decide: -25 +Decide: -13 +Decide: -16 +Decide: -17 +Decide: -18 +Decide: -23 +Decide: -24 +Decide: -30 +Decide: -25 +Decide: -30 +Decide: -24 +Decide: -25 +Decide: -31 +Decide: -20 +Decide: -23 +Decide: -24 +Decide: -30 +Decide: -27 +Decide: -30 +Decide: -24 +Decide: -27 +Decide: -31 +Decide: -23 +Decide: -18 +Decide: -20 +Decide: -23 +Decide: -25 +Decide: -30 +Decide: -27 +Decide: -30 +Decide: -25 +Decide: -27 +Decide: -32 +Decide: -23 +Decide: -20 +Decide: -23 +Decide: -17 +Decide: -18 +Decide: -20 +Decide: -24 +Decide: -25 +Decide: -31 +Decide: -27 +Decide: -31 +Decide: -25 +Decide: -27 +Decide: -32 +Decide: -24 +Decide: -20 +Decide: -24 +Decide: -18 +Decide: -20 +Decide: -25 +Decide: -16 +Decide: -17 +Decide: -23 +Decide: -18 +Decide: -23 +Decide: -17 +Decide: -18 +Decide: -24 +Decide: -12 +Decide: -13 +Decide: -16 +Decide: -17 +Decide: -19 +Decide: -23 +Decide: -24 +Decide: -30 +Decide: -26 +Decide: -30 +Decide: -24 +Decide: -26 +Decide: -31 +Decide: -20 +Decide: -23 +Decide: -24 +Decide: -30 +Decide: -27 +Decide: -30 +Decide: -24 +Decide: -27 +Decide: -31 +Decide: -23 +Decide: -19 +Decide: -20 +Decide: -23 +Decide: -26 +Decide: -30 +Decide: -27 +Decide: -30 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -23 +Decide: -20 +Decide: -23 +Decide: -17 +Decide: -19 +Decide: -20 +Decide: -24 +Decide: -26 +Decide: -31 +Decide: -27 +Decide: -31 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -24 +Decide: -20 +Decide: -24 +Decide: -19 +Decide: -20 +Decide: -26 +Decide: -16 +Decide: -17 +Decide: -23 +Decide: -19 +Decide: -23 +Decide: -17 +Decide: -19 +Decide: -24 +Decide: -13 +Decide: -16 +Decide: -17 +Decide: -23 +Decide: -20 +Decide: -23 +Decide: -17 +Decide: -20 +Decide: -24 +Decide: -16 +Decide: -11 +Decide: -12 +Decide: -13 +Decide: -16 +Decide: -18 +Decide: -19 +Decide: -23 +Decide: -25 +Decide: -30 +Decide: -26 +Decide: -30 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -20 +Decide: -23 +Decide: -25 +Decide: -30 +Decide: -27 +Decide: -30 +Decide: -25 +Decide: -27 +Decide: -32 +Decide: -23 +Decide: -19 +Decide: -20 +Decide: -23 +Decide: -26 +Decide: -30 +Decide: -27 +Decide: -30 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -23 +Decide: -20 +Decide: -23 +Decide: -18 +Decide: -19 +Decide: -20 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -27 +Decide: -32 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -25 +Decide: -20 +Decide: -25 +Decide: -19 +Decide: -20 +Decide: -26 +Decide: -16 +Decide: -18 +Decide: -23 +Decide: -19 +Decide: -23 +Decide: -18 +Decide: -19 +Decide: -25 +Decide: -13 +Decide: -16 +Decide: -18 +Decide: -23 +Decide: -20 +Decide: -23 +Decide: -18 +Decide: -20 +Decide: -25 +Decide: -16 +Decide: -12 +Decide: -13 +Decide: -16 +Decide: -19 +Decide: -23 +Decide: -20 +Decide: -23 +Decide: -19 +Decide: -20 +Decide: -26 +Decide: -16 +Decide: -13 +Decide: -16 +Decide: -10 +Decide: -11 +Decide: -12 +Decide: -13 +Decide: -17 +Decide: -18 +Decide: -19 +Decide: -24 +Decide: -25 +Decide: -31 +Decide: -26 +Decide: -31 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -20 +Decide: -24 +Decide: -25 +Decide: -31 +Decide: -27 +Decide: -31 +Decide: -25 +Decide: -27 +Decide: -32 +Decide: -24 +Decide: -19 +Decide: -20 +Decide: -24 +Decide: -26 +Decide: -31 +Decide: -27 +Decide: -31 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -24 +Decide: -20 +Decide: -24 +Decide: -18 +Decide: -19 +Decide: -20 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -27 +Decide: -32 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -25 +Decide: -20 +Decide: -25 +Decide: -19 +Decide: -20 +Decide: -26 +Decide: -17 +Decide: -18 +Decide: -24 +Decide: -19 +Decide: -24 +Decide: -18 +Decide: -19 +Decide: -25 +Decide: -13 +Decide: -17 +Decide: -18 +Decide: -24 +Decide: -20 +Decide: -24 +Decide: -18 +Decide: -20 +Decide: -25 +Decide: -17 +Decide: -12 +Decide: -13 +Decide: -17 +Decide: -19 +Decide: -24 +Decide: -20 +Decide: -24 +Decide: -19 +Decide: -20 +Decide: -26 +Decide: -17 +Decide: -13 +Decide: -17 +Decide: -11 +Decide: -12 +Decide: -13 +Decide: -18 +Decide: -19 +Decide: -25 +Decide: -20 +Decide: -25 +Decide: -19 +Decide: -20 +Decide: -26 +Decide: -18 +Decide: -13 +Decide: -18 +Decide: -12 +Decide: -13 +Decide: -19 +Decide: -7 +Decide: -9 +Decide: -10 +Decide: -11 +Decide: -12 +Decide: -16 +Decide: -17 +Decide: -18 +Decide: -23 +Decide: -24 +Decide: -30 +Decide: -25 +Decide: -30 +Decide: -24 +Decide: -25 +Decide: -31 +Decide: -19 +Decide: -23 +Decide: -24 +Decide: -30 +Decide: -26 +Decide: -30 +Decide: -24 +Decide: -26 +Decide: -31 +Decide: -23 +Decide: -18 +Decide: -19 +Decide: -23 +Decide: -25 +Decide: -30 +Decide: -26 +Decide: -30 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -23 +Decide: -19 +Decide: -23 +Decide: -17 +Decide: -18 +Decide: -19 +Decide: -24 +Decide: -25 +Decide: -31 +Decide: -26 +Decide: -31 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -24 +Decide: -19 +Decide: -24 +Decide: -18 +Decide: -19 +Decide: -25 +Decide: -14 +Decide: -16 +Decide: -17 +Decide: -18 +Decide: -23 +Decide: -24 +Decide: -30 +Decide: -25 +Decide: -30 +Decide: -24 +Decide: -25 +Decide: -31 +Decide: -21 +Decide: -23 +Decide: -24 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -24 +Decide: -28 +Decide: -31 +Decide: -23 +Decide: -18 +Decide: -21 +Decide: -23 +Decide: -25 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -25 +Decide: -28 +Decide: -32 +Decide: -23 +Decide: -21 +Decide: -23 +Decide: -17 +Decide: -18 +Decide: -21 +Decide: -24 +Decide: -25 +Decide: -31 +Decide: -28 +Decide: -31 +Decide: -25 +Decide: -28 +Decide: -32 +Decide: -24 +Decide: -21 +Decide: -24 +Decide: -18 +Decide: -21 +Decide: -25 +Decide: -16 +Decide: -17 +Decide: -23 +Decide: -18 +Decide: -23 +Decide: -17 +Decide: -18 +Decide: -24 +Decide: -12 +Decide: -14 +Decide: -16 +Decide: -17 +Decide: -19 +Decide: -23 +Decide: -24 +Decide: -30 +Decide: -26 +Decide: -30 +Decide: -24 +Decide: -26 +Decide: -31 +Decide: -21 +Decide: -23 +Decide: -24 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -24 +Decide: -28 +Decide: -31 +Decide: -23 +Decide: -19 +Decide: -21 +Decide: -23 +Decide: -26 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -26 +Decide: -28 +Decide: -33 +Decide: -23 +Decide: -21 +Decide: -23 +Decide: -17 +Decide: -19 +Decide: -21 +Decide: -24 +Decide: -26 +Decide: -31 +Decide: -28 +Decide: -31 +Decide: -26 +Decide: -28 +Decide: -33 +Decide: -24 +Decide: -21 +Decide: -24 +Decide: -19 +Decide: -21 +Decide: -26 +Decide: -16 +Decide: -17 +Decide: -23 +Decide: -19 +Decide: -23 +Decide: -17 +Decide: -19 +Decide: -24 +Decide: -14 +Decide: -16 +Decide: -17 +Decide: -23 +Decide: -21 +Decide: -23 +Decide: -17 +Decide: -21 +Decide: -24 +Decide: -16 +Decide: -11 +Decide: -12 +Decide: -14 +Decide: -16 +Decide: -18 +Decide: -19 +Decide: -23 +Decide: -25 +Decide: -30 +Decide: -26 +Decide: -30 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -21 +Decide: -23 +Decide: -25 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -25 +Decide: -28 +Decide: -32 +Decide: -23 +Decide: -19 +Decide: -21 +Decide: -23 +Decide: -26 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -26 +Decide: -28 +Decide: -33 +Decide: -23 +Decide: -21 +Decide: -23 +Decide: -18 +Decide: -19 +Decide: -21 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -28 +Decide: -32 +Decide: -26 +Decide: -28 +Decide: -33 +Decide: -25 +Decide: -21 +Decide: -25 +Decide: -19 +Decide: -21 +Decide: -26 +Decide: -16 +Decide: -18 +Decide: -23 +Decide: -19 +Decide: -23 +Decide: -18 +Decide: -19 +Decide: -25 +Decide: -14 +Decide: -16 +Decide: -18 +Decide: -23 +Decide: -21 +Decide: -23 +Decide: -18 +Decide: -21 +Decide: -25 +Decide: -16 +Decide: -12 +Decide: -14 +Decide: -16 +Decide: -19 +Decide: -23 +Decide: -21 +Decide: -23 +Decide: -19 +Decide: -21 +Decide: -26 +Decide: -16 +Decide: -14 +Decide: -16 +Decide: -10 +Decide: -11 +Decide: -12 +Decide: -14 +Decide: -17 +Decide: -18 +Decide: -19 +Decide: -24 +Decide: -25 +Decide: -31 +Decide: -26 +Decide: -31 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -21 +Decide: -24 +Decide: -25 +Decide: -31 +Decide: -28 +Decide: -31 +Decide: -25 +Decide: -28 +Decide: -32 +Decide: -24 +Decide: -19 +Decide: -21 +Decide: -24 +Decide: -26 +Decide: -31 +Decide: -28 +Decide: -31 +Decide: -26 +Decide: -28 +Decide: -33 +Decide: -24 +Decide: -21 +Decide: -24 +Decide: -18 +Decide: -19 +Decide: -21 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -28 +Decide: -32 +Decide: -26 +Decide: -28 +Decide: -33 +Decide: -25 +Decide: -21 +Decide: -25 +Decide: -19 +Decide: -21 +Decide: -26 +Decide: -17 +Decide: -18 +Decide: -24 +Decide: -19 +Decide: -24 +Decide: -18 +Decide: -19 +Decide: -25 +Decide: -14 +Decide: -17 +Decide: -18 +Decide: -24 +Decide: -21 +Decide: -24 +Decide: -18 +Decide: -21 +Decide: -25 +Decide: -17 +Decide: -12 +Decide: -14 +Decide: -17 +Decide: -19 +Decide: -24 +Decide: -21 +Decide: -24 +Decide: -19 +Decide: -21 +Decide: -26 +Decide: -17 +Decide: -14 +Decide: -17 +Decide: -11 +Decide: -12 +Decide: -14 +Decide: -18 +Decide: -19 +Decide: -25 +Decide: -21 +Decide: -25 +Decide: -19 +Decide: -21 +Decide: -26 +Decide: -18 +Decide: -14 +Decide: -18 +Decide: -12 +Decide: -14 +Decide: -19 +Decide: -9 +Decide: -10 +Decide: -11 +Decide: -16 +Decide: -17 +Decide: -23 +Decide: -18 +Decide: -23 +Decide: -17 +Decide: -18 +Decide: -24 +Decide: -12 +Decide: -16 +Decide: -17 +Decide: -23 +Decide: -19 +Decide: -23 +Decide: -17 +Decide: -19 +Decide: -24 +Decide: -16 +Decide: -11 +Decide: -12 +Decide: -16 +Decide: -18 +Decide: -23 +Decide: -19 +Decide: -23 +Decide: -18 +Decide: -19 +Decide: -25 +Decide: -16 +Decide: -12 +Decide: -16 +Decide: -10 +Decide: -11 +Decide: -12 +Decide: -17 +Decide: -18 +Decide: -24 +Decide: -19 +Decide: -24 +Decide: -18 +Decide: -19 +Decide: -25 +Decide: -17 +Decide: -12 +Decide: -17 +Decide: -11 +Decide: -12 +Decide: -18 +Decide: -6 +Decide: -7 +Decide: -9 +Decide: -10 +Decide: -11 +Decide: -13 +Decide: -16 +Decide: -17 +Decide: -18 +Decide: -23 +Decide: -24 +Decide: -30 +Decide: -25 +Decide: -30 +Decide: -24 +Decide: -25 +Decide: -31 +Decide: -20 +Decide: -23 +Decide: -24 +Decide: -30 +Decide: -27 +Decide: -30 +Decide: -24 +Decide: -27 +Decide: -31 +Decide: -23 +Decide: -18 +Decide: -20 +Decide: -23 +Decide: -25 +Decide: -30 +Decide: -27 +Decide: -30 +Decide: -25 +Decide: -27 +Decide: -32 +Decide: -23 +Decide: -20 +Decide: -23 +Decide: -17 +Decide: -18 +Decide: -20 +Decide: -24 +Decide: -25 +Decide: -31 +Decide: -27 +Decide: -31 +Decide: -25 +Decide: -27 +Decide: -32 +Decide: -24 +Decide: -20 +Decide: -24 +Decide: -18 +Decide: -20 +Decide: -25 +Decide: -14 +Decide: -16 +Decide: -17 +Decide: -18 +Decide: -23 +Decide: -24 +Decide: -30 +Decide: -25 +Decide: -30 +Decide: -24 +Decide: -25 +Decide: -31 +Decide: -21 +Decide: -23 +Decide: -24 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -24 +Decide: -28 +Decide: -31 +Decide: -23 +Decide: -18 +Decide: -21 +Decide: -23 +Decide: -25 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -25 +Decide: -28 +Decide: -32 +Decide: -23 +Decide: -21 +Decide: -23 +Decide: -17 +Decide: -18 +Decide: -21 +Decide: -24 +Decide: -25 +Decide: -31 +Decide: -28 +Decide: -31 +Decide: -25 +Decide: -28 +Decide: -32 +Decide: -24 +Decide: -21 +Decide: -24 +Decide: -18 +Decide: -21 +Decide: -25 +Decide: -16 +Decide: -17 +Decide: -23 +Decide: -18 +Decide: -23 +Decide: -17 +Decide: -18 +Decide: -24 +Decide: -13 +Decide: -14 +Decide: -16 +Decide: -17 +Decide: -20 +Decide: -23 +Decide: -24 +Decide: -30 +Decide: -27 +Decide: -30 +Decide: -24 +Decide: -27 +Decide: -31 +Decide: -21 +Decide: -23 +Decide: -24 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -24 +Decide: -28 +Decide: -31 +Decide: -23 +Decide: -20 +Decide: -21 +Decide: -23 +Decide: -27 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -23 +Decide: -21 +Decide: -23 +Decide: -17 +Decide: -20 +Decide: -21 +Decide: -24 +Decide: -27 +Decide: -31 +Decide: -28 +Decide: -31 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -24 +Decide: -21 +Decide: -24 +Decide: -20 +Decide: -21 +Decide: -27 +Decide: -16 +Decide: -17 +Decide: -23 +Decide: -20 +Decide: -23 +Decide: -17 +Decide: -20 +Decide: -24 +Decide: -14 +Decide: -16 +Decide: -17 +Decide: -23 +Decide: -21 +Decide: -23 +Decide: -17 +Decide: -21 +Decide: -24 +Decide: -16 +Decide: -11 +Decide: -13 +Decide: -14 +Decide: -16 +Decide: -18 +Decide: -20 +Decide: -23 +Decide: -25 +Decide: -30 +Decide: -27 +Decide: -30 +Decide: -25 +Decide: -27 +Decide: -32 +Decide: -21 +Decide: -23 +Decide: -25 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -25 +Decide: -28 +Decide: -32 +Decide: -23 +Decide: -20 +Decide: -21 +Decide: -23 +Decide: -27 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -23 +Decide: -21 +Decide: -23 +Decide: -18 +Decide: -20 +Decide: -21 +Decide: -25 +Decide: -27 +Decide: -32 +Decide: -28 +Decide: -32 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -25 +Decide: -21 +Decide: -25 +Decide: -20 +Decide: -21 +Decide: -27 +Decide: -16 +Decide: -18 +Decide: -23 +Decide: -20 +Decide: -23 +Decide: -18 +Decide: -20 +Decide: -25 +Decide: -14 +Decide: -16 +Decide: -18 +Decide: -23 +Decide: -21 +Decide: -23 +Decide: -18 +Decide: -21 +Decide: -25 +Decide: -16 +Decide: -13 +Decide: -14 +Decide: -16 +Decide: -20 +Decide: -23 +Decide: -21 +Decide: -23 +Decide: -20 +Decide: -21 +Decide: -27 +Decide: -16 +Decide: -14 +Decide: -16 +Decide: -10 +Decide: -11 +Decide: -13 +Decide: -14 +Decide: -17 +Decide: -18 +Decide: -20 +Decide: -24 +Decide: -25 +Decide: -31 +Decide: -27 +Decide: -31 +Decide: -25 +Decide: -27 +Decide: -32 +Decide: -21 +Decide: -24 +Decide: -25 +Decide: -31 +Decide: -28 +Decide: -31 +Decide: -25 +Decide: -28 +Decide: -32 +Decide: -24 +Decide: -20 +Decide: -21 +Decide: -24 +Decide: -27 +Decide: -31 +Decide: -28 +Decide: -31 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -24 +Decide: -21 +Decide: -24 +Decide: -18 +Decide: -20 +Decide: -21 +Decide: -25 +Decide: -27 +Decide: -32 +Decide: -28 +Decide: -32 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -25 +Decide: -21 +Decide: -25 +Decide: -20 +Decide: -21 +Decide: -27 +Decide: -17 +Decide: -18 +Decide: -24 +Decide: -20 +Decide: -24 +Decide: -18 +Decide: -20 +Decide: -25 +Decide: -14 +Decide: -17 +Decide: -18 +Decide: -24 +Decide: -21 +Decide: -24 +Decide: -18 +Decide: -21 +Decide: -25 +Decide: -17 +Decide: -13 +Decide: -14 +Decide: -17 +Decide: -20 +Decide: -24 +Decide: -21 +Decide: -24 +Decide: -20 +Decide: -21 +Decide: -27 +Decide: -17 +Decide: -14 +Decide: -17 +Decide: -11 +Decide: -13 +Decide: -14 +Decide: -18 +Decide: -20 +Decide: -25 +Decide: -21 +Decide: -25 +Decide: -20 +Decide: -21 +Decide: -27 +Decide: -18 +Decide: -14 +Decide: -18 +Decide: -13 +Decide: -14 +Decide: -20 +Decide: -9 +Decide: -10 +Decide: -11 +Decide: -16 +Decide: -17 +Decide: -23 +Decide: -18 +Decide: -23 +Decide: -17 +Decide: -18 +Decide: -24 +Decide: -13 +Decide: -16 +Decide: -17 +Decide: -23 +Decide: -20 +Decide: -23 +Decide: -17 +Decide: -20 +Decide: -24 +Decide: -16 +Decide: -11 +Decide: -13 +Decide: -16 +Decide: -18 +Decide: -23 +Decide: -20 +Decide: -23 +Decide: -18 +Decide: -20 +Decide: -25 +Decide: -16 +Decide: -13 +Decide: -16 +Decide: -10 +Decide: -11 +Decide: -13 +Decide: -17 +Decide: -18 +Decide: -24 +Decide: -20 +Decide: -24 +Decide: -18 +Decide: -20 +Decide: -25 +Decide: -17 +Decide: -13 +Decide: -17 +Decide: -11 +Decide: -13 +Decide: -18 +Decide: -7 +Decide: -9 +Decide: -10 +Decide: -11 +Decide: -16 +Decide: -17 +Decide: -23 +Decide: -18 +Decide: -23 +Decide: -17 +Decide: -18 +Decide: -24 +Decide: -14 +Decide: -16 +Decide: -17 +Decide: -23 +Decide: -21 +Decide: -23 +Decide: -17 +Decide: -21 +Decide: -24 +Decide: -16 +Decide: -11 +Decide: -14 +Decide: -16 +Decide: -18 +Decide: -23 +Decide: -21 +Decide: -23 +Decide: -18 +Decide: -21 +Decide: -25 +Decide: -16 +Decide: -14 +Decide: -16 +Decide: -10 +Decide: -11 +Decide: -14 +Decide: -17 +Decide: -18 +Decide: -24 +Decide: -21 +Decide: -24 +Decide: -18 +Decide: -21 +Decide: -25 +Decide: -17 +Decide: -14 +Decide: -17 +Decide: -11 +Decide: -14 +Decide: -18 +Decide: -9 +Decide: -10 +Decide: -16 +Decide: -11 +Decide: -16 +Decide: -10 +Decide: -11 +Decide: -17 +Decide: -5 +Decide: -6 +Decide: -7 +Decide: -9 +Decide: -10 +Decide: -12 +Decide: -13 +Decide: -16 +Decide: -17 +Decide: -19 +Decide: -23 +Decide: -24 +Decide: -30 +Decide: -26 +Decide: -30 +Decide: -24 +Decide: -26 +Decide: -31 +Decide: -20 +Decide: -23 +Decide: -24 +Decide: -30 +Decide: -27 +Decide: -30 +Decide: -24 +Decide: -27 +Decide: -31 +Decide: -23 +Decide: -19 +Decide: -20 +Decide: -23 +Decide: -26 +Decide: -30 +Decide: -27 +Decide: -30 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -23 +Decide: -20 +Decide: -23 +Decide: -17 +Decide: -19 +Decide: -20 +Decide: -24 +Decide: -26 +Decide: -31 +Decide: -27 +Decide: -31 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -24 +Decide: -20 +Decide: -24 +Decide: -19 +Decide: -20 +Decide: -26 +Decide: -14 +Decide: -16 +Decide: -17 +Decide: -19 +Decide: -23 +Decide: -24 +Decide: -30 +Decide: -26 +Decide: -30 +Decide: -24 +Decide: -26 +Decide: -31 +Decide: -21 +Decide: -23 +Decide: -24 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -24 +Decide: -28 +Decide: -31 +Decide: -23 +Decide: -19 +Decide: -21 +Decide: -23 +Decide: -26 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -26 +Decide: -28 +Decide: -33 +Decide: -23 +Decide: -21 +Decide: -23 +Decide: -17 +Decide: -19 +Decide: -21 +Decide: -24 +Decide: -26 +Decide: -31 +Decide: -28 +Decide: -31 +Decide: -26 +Decide: -28 +Decide: -33 +Decide: -24 +Decide: -21 +Decide: -24 +Decide: -19 +Decide: -21 +Decide: -26 +Decide: -16 +Decide: -17 +Decide: -23 +Decide: -19 +Decide: -23 +Decide: -17 +Decide: -19 +Decide: -24 +Decide: -13 +Decide: -14 +Decide: -16 +Decide: -17 +Decide: -20 +Decide: -23 +Decide: -24 +Decide: -30 +Decide: -27 +Decide: -30 +Decide: -24 +Decide: -27 +Decide: -31 +Decide: -21 +Decide: -23 +Decide: -24 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -24 +Decide: -28 +Decide: -31 +Decide: -23 +Decide: -20 +Decide: -21 +Decide: -23 +Decide: -27 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -23 +Decide: -21 +Decide: -23 +Decide: -17 +Decide: -20 +Decide: -21 +Decide: -24 +Decide: -27 +Decide: -31 +Decide: -28 +Decide: -31 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -24 +Decide: -21 +Decide: -24 +Decide: -20 +Decide: -21 +Decide: -27 +Decide: -16 +Decide: -17 +Decide: -23 +Decide: -20 +Decide: -23 +Decide: -17 +Decide: -20 +Decide: -24 +Decide: -14 +Decide: -16 +Decide: -17 +Decide: -23 +Decide: -21 +Decide: -23 +Decide: -17 +Decide: -21 +Decide: -24 +Decide: -16 +Decide: -12 +Decide: -13 +Decide: -14 +Decide: -16 +Decide: -19 +Decide: -20 +Decide: -23 +Decide: -26 +Decide: -30 +Decide: -27 +Decide: -30 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -21 +Decide: -23 +Decide: -26 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -26 +Decide: -28 +Decide: -33 +Decide: -23 +Decide: -20 +Decide: -21 +Decide: -23 +Decide: -27 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -23 +Decide: -21 +Decide: -23 +Decide: -19 +Decide: -20 +Decide: -21 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -28 +Decide: -33 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -26 +Decide: -21 +Decide: -26 +Decide: -20 +Decide: -21 +Decide: -27 +Decide: -16 +Decide: -19 +Decide: -23 +Decide: -20 +Decide: -23 +Decide: -19 +Decide: -20 +Decide: -26 +Decide: -14 +Decide: -16 +Decide: -19 +Decide: -23 +Decide: -21 +Decide: -23 +Decide: -19 +Decide: -21 +Decide: -26 +Decide: -16 +Decide: -13 +Decide: -14 +Decide: -16 +Decide: -20 +Decide: -23 +Decide: -21 +Decide: -23 +Decide: -20 +Decide: -21 +Decide: -27 +Decide: -16 +Decide: -14 +Decide: -16 +Decide: -10 +Decide: -12 +Decide: -13 +Decide: -14 +Decide: -17 +Decide: -19 +Decide: -20 +Decide: -24 +Decide: -26 +Decide: -31 +Decide: -27 +Decide: -31 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -21 +Decide: -24 +Decide: -26 +Decide: -31 +Decide: -28 +Decide: -31 +Decide: -26 +Decide: -28 +Decide: -33 +Decide: -24 +Decide: -20 +Decide: -21 +Decide: -24 +Decide: -27 +Decide: -31 +Decide: -28 +Decide: -31 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -24 +Decide: -21 +Decide: -24 +Decide: -19 +Decide: -20 +Decide: -21 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -28 +Decide: -33 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -26 +Decide: -21 +Decide: -26 +Decide: -20 +Decide: -21 +Decide: -27 +Decide: -17 +Decide: -19 +Decide: -24 +Decide: -20 +Decide: -24 +Decide: -19 +Decide: -20 +Decide: -26 +Decide: -14 +Decide: -17 +Decide: -19 +Decide: -24 +Decide: -21 +Decide: -24 +Decide: -19 +Decide: -21 +Decide: -26 +Decide: -17 +Decide: -13 +Decide: -14 +Decide: -17 +Decide: -20 +Decide: -24 +Decide: -21 +Decide: -24 +Decide: -20 +Decide: -21 +Decide: -27 +Decide: -17 +Decide: -14 +Decide: -17 +Decide: -12 +Decide: -13 +Decide: -14 +Decide: -19 +Decide: -20 +Decide: -26 +Decide: -21 +Decide: -26 +Decide: -20 +Decide: -21 +Decide: -27 +Decide: -19 +Decide: -14 +Decide: -19 +Decide: -13 +Decide: -14 +Decide: -20 +Decide: -9 +Decide: -10 +Decide: -12 +Decide: -16 +Decide: -17 +Decide: -23 +Decide: -19 +Decide: -23 +Decide: -17 +Decide: -19 +Decide: -24 +Decide: -13 +Decide: -16 +Decide: -17 +Decide: -23 +Decide: -20 +Decide: -23 +Decide: -17 +Decide: -20 +Decide: -24 +Decide: -16 +Decide: -12 +Decide: -13 +Decide: -16 +Decide: -19 +Decide: -23 +Decide: -20 +Decide: -23 +Decide: -19 +Decide: -20 +Decide: -26 +Decide: -16 +Decide: -13 +Decide: -16 +Decide: -10 +Decide: -12 +Decide: -13 +Decide: -17 +Decide: -19 +Decide: -24 +Decide: -20 +Decide: -24 +Decide: -19 +Decide: -20 +Decide: -26 +Decide: -17 +Decide: -13 +Decide: -17 +Decide: -12 +Decide: -13 +Decide: -19 +Decide: -7 +Decide: -9 +Decide: -10 +Decide: -12 +Decide: -16 +Decide: -17 +Decide: -23 +Decide: -19 +Decide: -23 +Decide: -17 +Decide: -19 +Decide: -24 +Decide: -14 +Decide: -16 +Decide: -17 +Decide: -23 +Decide: -21 +Decide: -23 +Decide: -17 +Decide: -21 +Decide: -24 +Decide: -16 +Decide: -12 +Decide: -14 +Decide: -16 +Decide: -19 +Decide: -23 +Decide: -21 +Decide: -23 +Decide: -19 +Decide: -21 +Decide: -26 +Decide: -16 +Decide: -14 +Decide: -16 +Decide: -10 +Decide: -12 +Decide: -14 +Decide: -17 +Decide: -19 +Decide: -24 +Decide: -21 +Decide: -24 +Decide: -19 +Decide: -21 +Decide: -26 +Decide: -17 +Decide: -14 +Decide: -17 +Decide: -12 +Decide: -14 +Decide: -19 +Decide: -9 +Decide: -10 +Decide: -16 +Decide: -12 +Decide: -16 +Decide: -10 +Decide: -12 +Decide: -17 +Decide: -6 +Decide: -7 +Decide: -9 +Decide: -10 +Decide: -13 +Decide: -16 +Decide: -17 +Decide: -23 +Decide: -20 +Decide: -23 +Decide: -17 +Decide: -20 +Decide: -24 +Decide: -14 +Decide: -16 +Decide: -17 +Decide: -23 +Decide: -21 +Decide: -23 +Decide: -17 +Decide: -21 +Decide: -24 +Decide: -16 +Decide: -13 +Decide: -14 +Decide: -16 +Decide: -20 +Decide: -23 +Decide: -21 +Decide: -23 +Decide: -20 +Decide: -21 +Decide: -27 +Decide: -16 +Decide: -14 +Decide: -16 +Decide: -10 +Decide: -13 +Decide: -14 +Decide: -17 +Decide: -20 +Decide: -24 +Decide: -21 +Decide: -24 +Decide: -20 +Decide: -21 +Decide: -27 +Decide: -17 +Decide: -14 +Decide: -17 +Decide: -13 +Decide: -14 +Decide: -20 +Decide: -9 +Decide: -10 +Decide: -16 +Decide: -13 +Decide: -16 +Decide: -10 +Decide: -13 +Decide: -17 +Decide: -7 +Decide: -9 +Decide: -10 +Decide: -16 +Decide: -14 +Decide: -16 +Decide: -10 +Decide: -14 +Decide: -17 +Decide: -9 +Decide: -4 +Decide: -5 +Decide: -6 +Decide: -7 +Decide: -9 +Decide: -11 +Decide: -12 +Decide: -13 +Decide: -16 +Decide: -18 +Decide: -19 +Decide: -23 +Decide: -25 +Decide: -30 +Decide: -26 +Decide: -30 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -20 +Decide: -23 +Decide: -25 +Decide: -30 +Decide: -27 +Decide: -30 +Decide: -25 +Decide: -27 +Decide: -32 +Decide: -23 +Decide: -19 +Decide: -20 +Decide: -23 +Decide: -26 +Decide: -30 +Decide: -27 +Decide: -30 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -23 +Decide: -20 +Decide: -23 +Decide: -18 +Decide: -19 +Decide: -20 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -27 +Decide: -32 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -25 +Decide: -20 +Decide: -25 +Decide: -19 +Decide: -20 +Decide: -26 +Decide: -14 +Decide: -16 +Decide: -18 +Decide: -19 +Decide: -23 +Decide: -25 +Decide: -30 +Decide: -26 +Decide: -30 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -21 +Decide: -23 +Decide: -25 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -25 +Decide: -28 +Decide: -32 +Decide: -23 +Decide: -19 +Decide: -21 +Decide: -23 +Decide: -26 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -26 +Decide: -28 +Decide: -33 +Decide: -23 +Decide: -21 +Decide: -23 +Decide: -18 +Decide: -19 +Decide: -21 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -28 +Decide: -32 +Decide: -26 +Decide: -28 +Decide: -33 +Decide: -25 +Decide: -21 +Decide: -25 +Decide: -19 +Decide: -21 +Decide: -26 +Decide: -16 +Decide: -18 +Decide: -23 +Decide: -19 +Decide: -23 +Decide: -18 +Decide: -19 +Decide: -25 +Decide: -13 +Decide: -14 +Decide: -16 +Decide: -18 +Decide: -20 +Decide: -23 +Decide: -25 +Decide: -30 +Decide: -27 +Decide: -30 +Decide: -25 +Decide: -27 +Decide: -32 +Decide: -21 +Decide: -23 +Decide: -25 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -25 +Decide: -28 +Decide: -32 +Decide: -23 +Decide: -20 +Decide: -21 +Decide: -23 +Decide: -27 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -23 +Decide: -21 +Decide: -23 +Decide: -18 +Decide: -20 +Decide: -21 +Decide: -25 +Decide: -27 +Decide: -32 +Decide: -28 +Decide: -32 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -25 +Decide: -21 +Decide: -25 +Decide: -20 +Decide: -21 +Decide: -27 +Decide: -16 +Decide: -18 +Decide: -23 +Decide: -20 +Decide: -23 +Decide: -18 +Decide: -20 +Decide: -25 +Decide: -14 +Decide: -16 +Decide: -18 +Decide: -23 +Decide: -21 +Decide: -23 +Decide: -18 +Decide: -21 +Decide: -25 +Decide: -16 +Decide: -12 +Decide: -13 +Decide: -14 +Decide: -16 +Decide: -19 +Decide: -20 +Decide: -23 +Decide: -26 +Decide: -30 +Decide: -27 +Decide: -30 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -21 +Decide: -23 +Decide: -26 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -26 +Decide: -28 +Decide: -33 +Decide: -23 +Decide: -20 +Decide: -21 +Decide: -23 +Decide: -27 +Decide: -30 +Decide: -28 +Decide: -30 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -23 +Decide: -21 +Decide: -23 +Decide: -19 +Decide: -20 +Decide: -21 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -28 +Decide: -33 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -26 +Decide: -21 +Decide: -26 +Decide: -20 +Decide: -21 +Decide: -27 +Decide: -16 +Decide: -19 +Decide: -23 +Decide: -20 +Decide: -23 +Decide: -19 +Decide: -20 +Decide: -26 +Decide: -14 +Decide: -16 +Decide: -19 +Decide: -23 +Decide: -21 +Decide: -23 +Decide: -19 +Decide: -21 +Decide: -26 +Decide: -16 +Decide: -13 +Decide: -14 +Decide: -16 +Decide: -20 +Decide: -23 +Decide: -21 +Decide: -23 +Decide: -20 +Decide: -21 +Decide: -27 +Decide: -16 +Decide: -14 +Decide: -16 +Decide: -11 +Decide: -12 +Decide: -13 +Decide: -14 +Decide: -18 +Decide: -19 +Decide: -20 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -27 +Decide: -32 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -21 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -28 +Decide: -32 +Decide: -26 +Decide: -28 +Decide: -33 +Decide: -25 +Decide: -20 +Decide: -21 +Decide: -25 +Decide: -27 +Decide: -32 +Decide: -28 +Decide: -32 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -25 +Decide: -21 +Decide: -25 +Decide: -19 +Decide: -20 +Decide: -21 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -28 +Decide: -33 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -26 +Decide: -21 +Decide: -26 +Decide: -20 +Decide: -21 +Decide: -27 +Decide: -18 +Decide: -19 +Decide: -25 +Decide: -20 +Decide: -25 +Decide: -19 +Decide: -20 +Decide: -26 +Decide: -14 +Decide: -18 +Decide: -19 +Decide: -25 +Decide: -21 +Decide: -25 +Decide: -19 +Decide: -21 +Decide: -26 +Decide: -18 +Decide: -13 +Decide: -14 +Decide: -18 +Decide: -20 +Decide: -25 +Decide: -21 +Decide: -25 +Decide: -20 +Decide: -21 +Decide: -27 +Decide: -18 +Decide: -14 +Decide: -18 +Decide: -12 +Decide: -13 +Decide: -14 +Decide: -19 +Decide: -20 +Decide: -26 +Decide: -21 +Decide: -26 +Decide: -20 +Decide: -21 +Decide: -27 +Decide: -19 +Decide: -14 +Decide: -19 +Decide: -13 +Decide: -14 +Decide: -20 +Decide: -9 +Decide: -11 +Decide: -12 +Decide: -16 +Decide: -18 +Decide: -23 +Decide: -19 +Decide: -23 +Decide: -18 +Decide: -19 +Decide: -25 +Decide: -13 +Decide: -16 +Decide: -18 +Decide: -23 +Decide: -20 +Decide: -23 +Decide: -18 +Decide: -20 +Decide: -25 +Decide: -16 +Decide: -12 +Decide: -13 +Decide: -16 +Decide: -19 +Decide: -23 +Decide: -20 +Decide: -23 +Decide: -19 +Decide: -20 +Decide: -26 +Decide: -16 +Decide: -13 +Decide: -16 +Decide: -11 +Decide: -12 +Decide: -13 +Decide: -18 +Decide: -19 +Decide: -25 +Decide: -20 +Decide: -25 +Decide: -19 +Decide: -20 +Decide: -26 +Decide: -18 +Decide: -13 +Decide: -18 +Decide: -12 +Decide: -13 +Decide: -19 +Decide: -7 +Decide: -9 +Decide: -11 +Decide: -12 +Decide: -16 +Decide: -18 +Decide: -23 +Decide: -19 +Decide: -23 +Decide: -18 +Decide: -19 +Decide: -25 +Decide: -14 +Decide: -16 +Decide: -18 +Decide: -23 +Decide: -21 +Decide: -23 +Decide: -18 +Decide: -21 +Decide: -25 +Decide: -16 +Decide: -12 +Decide: -14 +Decide: -16 +Decide: -19 +Decide: -23 +Decide: -21 +Decide: -23 +Decide: -19 +Decide: -21 +Decide: -26 +Decide: -16 +Decide: -14 +Decide: -16 +Decide: -11 +Decide: -12 +Decide: -14 +Decide: -18 +Decide: -19 +Decide: -25 +Decide: -21 +Decide: -25 +Decide: -19 +Decide: -21 +Decide: -26 +Decide: -18 +Decide: -14 +Decide: -18 +Decide: -12 +Decide: -14 +Decide: -19 +Decide: -9 +Decide: -11 +Decide: -16 +Decide: -12 +Decide: -16 +Decide: -11 +Decide: -12 +Decide: -18 +Decide: -6 +Decide: -7 +Decide: -9 +Decide: -11 +Decide: -13 +Decide: -16 +Decide: -18 +Decide: -23 +Decide: -20 +Decide: -23 +Decide: -18 +Decide: -20 +Decide: -25 +Decide: -14 +Decide: -16 +Decide: -18 +Decide: -23 +Decide: -21 +Decide: -23 +Decide: -18 +Decide: -21 +Decide: -25 +Decide: -16 +Decide: -13 +Decide: -14 +Decide: -16 +Decide: -20 +Decide: -23 +Decide: -21 +Decide: -23 +Decide: -20 +Decide: -21 +Decide: -27 +Decide: -16 +Decide: -14 +Decide: -16 +Decide: -11 +Decide: -13 +Decide: -14 +Decide: -18 +Decide: -20 +Decide: -25 +Decide: -21 +Decide: -25 +Decide: -20 +Decide: -21 +Decide: -27 +Decide: -18 +Decide: -14 +Decide: -18 +Decide: -13 +Decide: -14 +Decide: -20 +Decide: -9 +Decide: -11 +Decide: -16 +Decide: -13 +Decide: -16 +Decide: -11 +Decide: -13 +Decide: -18 +Decide: -7 +Decide: -9 +Decide: -11 +Decide: -16 +Decide: -14 +Decide: -16 +Decide: -11 +Decide: -14 +Decide: -18 +Decide: -9 +Decide: -5 +Decide: -6 +Decide: -7 +Decide: -9 +Decide: -12 +Decide: -13 +Decide: -16 +Decide: -19 +Decide: -23 +Decide: -20 +Decide: -23 +Decide: -19 +Decide: -20 +Decide: -26 +Decide: -14 +Decide: -16 +Decide: -19 +Decide: -23 +Decide: -21 +Decide: -23 +Decide: -19 +Decide: -21 +Decide: -26 +Decide: -16 +Decide: -13 +Decide: -14 +Decide: -16 +Decide: -20 +Decide: -23 +Decide: -21 +Decide: -23 +Decide: -20 +Decide: -21 +Decide: -27 +Decide: -16 +Decide: -14 +Decide: -16 +Decide: -12 +Decide: -13 +Decide: -14 +Decide: -19 +Decide: -20 +Decide: -26 +Decide: -21 +Decide: -26 +Decide: -20 +Decide: -21 +Decide: -27 +Decide: -19 +Decide: -14 +Decide: -19 +Decide: -13 +Decide: -14 +Decide: -20 +Decide: -9 +Decide: -12 +Decide: -16 +Decide: -13 +Decide: -16 +Decide: -12 +Decide: -13 +Decide: -19 +Decide: -7 +Decide: -9 +Decide: -12 +Decide: -16 +Decide: -14 +Decide: -16 +Decide: -12 +Decide: -14 +Decide: -19 +Decide: -9 +Decide: -6 +Decide: -7 +Decide: -9 +Decide: -13 +Decide: -16 +Decide: -14 +Decide: -16 +Decide: -13 +Decide: -14 +Decide: -20 +Decide: -9 +Decide: -7 +Decide: -9 +Decide: -3 +Decide: -4 +Decide: -5 +Decide: -6 +Decide: -7 +Decide: -10 +Decide: -11 +Decide: -12 +Decide: -13 +Decide: -17 +Decide: -18 +Decide: -19 +Decide: -24 +Decide: -25 +Decide: -31 +Decide: -26 +Decide: -31 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -20 +Decide: -24 +Decide: -25 +Decide: -31 +Decide: -27 +Decide: -31 +Decide: -25 +Decide: -27 +Decide: -32 +Decide: -24 +Decide: -19 +Decide: -20 +Decide: -24 +Decide: -26 +Decide: -31 +Decide: -27 +Decide: -31 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -24 +Decide: -20 +Decide: -24 +Decide: -18 +Decide: -19 +Decide: -20 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -27 +Decide: -32 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -25 +Decide: -20 +Decide: -25 +Decide: -19 +Decide: -20 +Decide: -26 +Decide: -14 +Decide: -17 +Decide: -18 +Decide: -19 +Decide: -24 +Decide: -25 +Decide: -31 +Decide: -26 +Decide: -31 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -21 +Decide: -24 +Decide: -25 +Decide: -31 +Decide: -28 +Decide: -31 +Decide: -25 +Decide: -28 +Decide: -32 +Decide: -24 +Decide: -19 +Decide: -21 +Decide: -24 +Decide: -26 +Decide: -31 +Decide: -28 +Decide: -31 +Decide: -26 +Decide: -28 +Decide: -33 +Decide: -24 +Decide: -21 +Decide: -24 +Decide: -18 +Decide: -19 +Decide: -21 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -28 +Decide: -32 +Decide: -26 +Decide: -28 +Decide: -33 +Decide: -25 +Decide: -21 +Decide: -25 +Decide: -19 +Decide: -21 +Decide: -26 +Decide: -17 +Decide: -18 +Decide: -24 +Decide: -19 +Decide: -24 +Decide: -18 +Decide: -19 +Decide: -25 +Decide: -13 +Decide: -14 +Decide: -17 +Decide: -18 +Decide: -20 +Decide: -24 +Decide: -25 +Decide: -31 +Decide: -27 +Decide: -31 +Decide: -25 +Decide: -27 +Decide: -32 +Decide: -21 +Decide: -24 +Decide: -25 +Decide: -31 +Decide: -28 +Decide: -31 +Decide: -25 +Decide: -28 +Decide: -32 +Decide: -24 +Decide: -20 +Decide: -21 +Decide: -24 +Decide: -27 +Decide: -31 +Decide: -28 +Decide: -31 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -24 +Decide: -21 +Decide: -24 +Decide: -18 +Decide: -20 +Decide: -21 +Decide: -25 +Decide: -27 +Decide: -32 +Decide: -28 +Decide: -32 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -25 +Decide: -21 +Decide: -25 +Decide: -20 +Decide: -21 +Decide: -27 +Decide: -17 +Decide: -18 +Decide: -24 +Decide: -20 +Decide: -24 +Decide: -18 +Decide: -20 +Decide: -25 +Decide: -14 +Decide: -17 +Decide: -18 +Decide: -24 +Decide: -21 +Decide: -24 +Decide: -18 +Decide: -21 +Decide: -25 +Decide: -17 +Decide: -12 +Decide: -13 +Decide: -14 +Decide: -17 +Decide: -19 +Decide: -20 +Decide: -24 +Decide: -26 +Decide: -31 +Decide: -27 +Decide: -31 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -21 +Decide: -24 +Decide: -26 +Decide: -31 +Decide: -28 +Decide: -31 +Decide: -26 +Decide: -28 +Decide: -33 +Decide: -24 +Decide: -20 +Decide: -21 +Decide: -24 +Decide: -27 +Decide: -31 +Decide: -28 +Decide: -31 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -24 +Decide: -21 +Decide: -24 +Decide: -19 +Decide: -20 +Decide: -21 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -28 +Decide: -33 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -26 +Decide: -21 +Decide: -26 +Decide: -20 +Decide: -21 +Decide: -27 +Decide: -17 +Decide: -19 +Decide: -24 +Decide: -20 +Decide: -24 +Decide: -19 +Decide: -20 +Decide: -26 +Decide: -14 +Decide: -17 +Decide: -19 +Decide: -24 +Decide: -21 +Decide: -24 +Decide: -19 +Decide: -21 +Decide: -26 +Decide: -17 +Decide: -13 +Decide: -14 +Decide: -17 +Decide: -20 +Decide: -24 +Decide: -21 +Decide: -24 +Decide: -20 +Decide: -21 +Decide: -27 +Decide: -17 +Decide: -14 +Decide: -17 +Decide: -11 +Decide: -12 +Decide: -13 +Decide: -14 +Decide: -18 +Decide: -19 +Decide: -20 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -27 +Decide: -32 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -21 +Decide: -25 +Decide: -26 +Decide: -32 +Decide: -28 +Decide: -32 +Decide: -26 +Decide: -28 +Decide: -33 +Decide: -25 +Decide: -20 +Decide: -21 +Decide: -25 +Decide: -27 +Decide: -32 +Decide: -28 +Decide: -32 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -25 +Decide: -21 +Decide: -25 +Decide: -19 +Decide: -20 +Decide: -21 +Decide: -26 +Decide: -27 +Decide: -33 +Decide: -28 +Decide: -33 +Decide: -27 +Decide: -28 +Decide: -34 +Decide: -26 +Decide: -21 +Decide: -26 +Decide: -20 +Decide: -21 +Decide: -27 +Decide: -18 +Decide: -19 +Decide: -25 +Decide: -20 +Decide: -25 +Decide: -19 +Decide: -20 +Decide: -26 +Decide: -14 +Decide: -18 +Decide: -19 +Decide: -25 +Decide: -21 +Decide: -25 +Decide: -19 +Decide: -21 +Decide: -26 +Decide: -18 +Decide: -13 +Decide: -14 +Decide: -18 +Decide: -20 +Decide: -25 +Decide: -21 +Decide: -25 +Decide: -20 +Decide: -21 +Decide: -27 +Decide: -18 +Decide: -14 +Decide: -18 +Decide: -12 +Decide: -13 +Decide: -14 +Decide: -19 +Decide: -20 +Decide: -26 +Decide: -21 +Decide: -26 +Decide: -20 +Decide: -21 +Decide: -27 +Decide: -19 +Decide: -14 +Decide: -19 +Decide: -13 +Decide: -14 +Decide: -20 +Decide: -10 +Decide: -11 +Decide: -12 +Decide: -17 +Decide: -18 +Decide: -24 +Decide: -19 +Decide: -24 +Decide: -18 +Decide: -19 +Decide: -25 +Decide: -13 +Decide: -17 +Decide: -18 +Decide: -24 +Decide: -20 +Decide: -24 +Decide: -18 +Decide: -20 +Decide: -25 +Decide: -17 +Decide: -12 +Decide: -13 +Decide: -17 +Decide: -19 +Decide: -24 +Decide: -20 +Decide: -24 +Decide: -19 +Decide: -20 +Decide: -26 +Decide: -17 +Decide: -13 +Decide: -17 +Decide: -11 +Decide: -12 +Decide: -13 +Decide: -18 +Decide: -19 +Decide: -25 +Decide: -20 +Decide: -25 +Decide: -19 +Decide: -20 +Decide: -26 +Decide: -18 +Decide: -13 +Decide: -18 +Decide: -12 +Decide: -13 +Decide: -19 +Decide: -7 +Decide: -10 +Decide: -11 +Decide: -12 +Decide: -17 +Decide: -18 +Decide: -24 +Decide: -19 +Decide: -24 +Decide: -18 +Decide: -19 +Decide: -25 +Decide: -14 +Decide: -17 +Decide: -18 +Decide: -24 +Decide: -21 +Decide: -24 +Decide: -18 +Decide: -21 +Decide: -25 +Decide: -17 +Decide: -12 +Decide: -14 +Decide: -17 +Decide: -19 +Decide: -24 +Decide: -21 +Decide: -24 +Decide: -19 +Decide: -21 +Decide: -26 +Decide: -17 +Decide: -14 +Decide: -17 +Decide: -11 +Decide: -12 +Decide: -14 +Decide: -18 +Decide: -19 +Decide: -25 +Decide: -21 +Decide: -25 +Decide: -19 +Decide: -21 +Decide: -26 +Decide: -18 +Decide: -14 +Decide: -18 +Decide: -12 +Decide: -14 +Decide: -19 +Decide: -10 +Decide: -11 +Decide: -17 +Decide: -12 +Decide: -17 +Decide: -11 +Decide: -12 +Decide: -18 +Decide: -6 +Decide: -7 +Decide: -10 +Decide: -11 +Decide: -13 +Decide: -17 +Decide: -18 +Decide: -24 +Decide: -20 +Decide: -24 +Decide: -18 +Decide: -20 +Decide: -25 +Decide: -14 +Decide: -17 +Decide: -18 +Decide: -24 +Decide: -21 +Decide: -24 +Decide: -18 +Decide: -21 +Decide: -25 +Decide: -17 +Decide: -13 +Decide: -14 +Decide: -17 +Decide: -20 +Decide: -24 +Decide: -21 +Decide: -24 +Decide: -20 +Decide: -21 +Decide: -27 +Decide: -17 +Decide: -14 +Decide: -17 +Decide: -11 +Decide: -13 +Decide: -14 +Decide: -18 +Decide: -20 +Decide: -25 +Decide: -21 +Decide: -25 +Decide: -20 +Decide: -21 +Decide: -27 +Decide: -18 +Decide: -14 +Decide: -18 +Decide: -13 +Decide: -14 +Decide: -20 +Decide: -10 +Decide: -11 +Decide: -17 +Decide: -13 +Decide: -17 +Decide: -11 +Decide: -13 +Decide: -18 +Decide: -7 +Decide: -10 +Decide: -11 +Decide: -17 +Decide: -14 +Decide: -17 +Decide: -11 +Decide: -14 +Decide: -18 +Decide: -10 +Decide: -5 +Decide: -6 +Decide: -7 +Decide: -10 +Decide: -12 +Decide: -13 +Decide: -17 +Decide: -19 +Decide: -24 +Decide: -20 +Decide: -24 +Decide: -19 +Decide: -20 +Decide: -26 +Decide: -14 +Decide: -17 +Decide: -19 +Decide: -24 +Decide: -21 +Decide: -24 +Decide: -19 +Decide: -21 +Decide: -26 +Decide: -17 +Decide: -13 +Decide: -14 +Decide: -17 +Decide: -20 +Decide: -24 +Decide: -21 +Decide: -24 +Decide: -20 +Decide: -21 +Decide: -27 +Decide: -17 +Decide: -14 +Decide: -17 +Decide: -12 +Decide: -13 +Decide: -14 +Decide: -19 +Decide: -20 +Decide: -26 +Decide: -21 +Decide: -26 +Decide: -20 +Decide: -21 +Decide: -27 +Decide: -19 +Decide: -14 +Decide: -19 +Decide: -13 +Decide: -14 +Decide: -20 +Decide: -10 +Decide: -12 +Decide: -17 +Decide: -13 +Decide: -17 +Decide: -12 +Decide: -13 +Decide: -19 +Decide: -7 +Decide: -10 +Decide: -12 +Decide: -17 +Decide: -14 +Decide: -17 +Decide: -12 +Decide: -14 +Decide: -19 +Decide: -10 +Decide: -6 +Decide: -7 +Decide: -10 +Decide: -13 +Decide: -17 +Decide: -14 +Decide: -17 +Decide: -13 +Decide: -14 +Decide: -20 +Decide: -10 +Decide: -7 +Decide: -10 +Decide: -4 +Decide: -5 +Decide: -6 +Decide: -7 +Decide: -11 +Decide: -12 +Decide: -13 +Decide: -18 +Decide: -19 +Decide: -25 +Decide: -20 +Decide: -25 +Decide: -19 +Decide: -20 +Decide: -26 +Decide: -14 +Decide: -18 +Decide: -19 +Decide: -25 +Decide: -21 +Decide: -25 +Decide: -19 +Decide: -21 +Decide: -26 +Decide: -18 +Decide: -13 +Decide: -14 +Decide: -18 +Decide: -20 +Decide: -25 +Decide: -21 +Decide: -25 +Decide: -20 +Decide: -21 +Decide: -27 +Decide: -18 +Decide: -14 +Decide: -18 +Decide: -12 +Decide: -13 +Decide: -14 +Decide: -19 +Decide: -20 +Decide: -26 +Decide: -21 +Decide: -26 +Decide: -20 +Decide: -21 +Decide: -27 +Decide: -19 +Decide: -14 +Decide: -19 +Decide: -13 +Decide: -14 +Decide: -20 +Decide: -11 +Decide: -12 +Decide: -18 +Decide: -13 +Decide: -18 +Decide: -12 +Decide: -13 +Decide: -19 +Decide: -7 +Decide: -11 +Decide: -12 +Decide: -18 +Decide: -14 +Decide: -18 +Decide: -12 +Decide: -14 +Decide: -19 +Decide: -11 +Decide: -6 +Decide: -7 +Decide: -11 +Decide: -13 +Decide: -18 +Decide: -14 +Decide: -18 +Decide: -13 +Decide: -14 +Decide: -20 +Decide: -11 +Decide: -7 +Decide: -11 +Decide: -5 +Decide: -6 +Decide: -7 +Decide: -12 +Decide: -13 +Decide: -19 +Decide: -14 +Decide: -19 +Decide: -13 +Decide: -14 +Decide: -20 +Decide: -12 +Decide: -7 +Decide: -12 +Decide: -6 +Decide: -7 +Decide: -13 diff --git a/sat-chaff/test_inputs/aim-100.dimacs b/sat-chaff/test_inputs/aim-100.dimacs new file mode 100644 index 0000000..2e0e818 --- /dev/null +++ b/sat-chaff/test_inputs/aim-100.dimacs @@ -0,0 +1,171 @@ +c FILE: aim-100-1_6-no-1.cnf +c +c SOURCE: Kazuo Iwama, Eiji Miyano (miyano@cscu.kyushu-u.ac.jp), +c and Yuichi Asahiro +c +c DESCRIPTION: Artifical instances from generator by source. Generators +c and more information in sat/contributed/iwama. +c +c NOTE: Not Satisfiable +c +p cnf 100 160 +16 30 95 0 +-16 30 95 0 +-30 35 78 0 +-30 -78 85 0 +-78 -85 95 0 +8 55 100 0 +8 55 -95 0 +9 52 100 0 +9 73 -100 0 +-8 -9 52 0 +38 66 83 0 +-38 83 87 0 +-52 83 -87 0 +66 74 -83 0 +-52 -66 89 0 +-52 73 -89 0 +-52 73 -74 0 +-8 -73 -95 0 +40 -55 90 0 +-40 -55 90 0 +25 35 82 0 +-25 82 -90 0 +-55 -82 -90 0 +11 75 84 0 +11 -75 96 0 +23 -75 -96 0 +-11 23 -35 0 +-23 29 65 0 +29 -35 -65 0 +-23 -29 84 0 +-35 54 70 0 +-54 70 77 0 +19 -77 -84 0 +-19 -54 70 0 +22 68 81 0 +-22 48 81 0 +-22 -48 93 0 +3 -48 -93 0 +7 18 -81 0 +-7 56 -81 0 +3 18 -56 0 +-18 47 68 0 +-18 -47 -81 0 +-3 68 77 0 +-3 -77 -84 0 +19 -68 -70 0 +-19 -68 74 0 +-68 -70 -74 0 +54 61 -62 0 +50 53 -62 0 +-50 61 -62 0 +-27 56 93 0 +4 14 76 0 +4 -76 96 0 +-4 14 80 0 +-14 -68 80 0 +-10 -39 -89 0 +1 49 -81 0 +1 26 -49 0 +17 -26 -49 0 +-1 17 -40 0 +16 51 -89 0 +-9 57 60 0 +12 45 -51 0 +2 12 69 0 +2 -12 40 0 +-12 -51 69 0 +-33 60 -98 0 +5 -32 -66 0 +2 -47 -100 0 +-42 64 83 0 +20 -42 -64 0 +20 -48 98 0 +-20 50 98 0 +-32 -50 98 0 +-24 37 -73 0 +-24 -37 -100 0 +-57 71 81 0 +-37 40 -91 0 +31 42 81 0 +-31 42 72 0 +-31 42 -72 0 +7 -19 25 0 +-1 -25 -94 0 +-15 -44 79 0 +-6 31 46 0 +-39 41 88 0 +28 -39 43 0 +28 -43 -88 0 +-4 -28 -88 0 +-30 -39 -41 0 +-29 33 88 0 +-16 21 94 0 +-10 26 62 0 +-11 -64 86 0 +-6 -41 76 0 +38 -46 93 0 +26 -37 94 0 +-26 53 -79 0 +78 87 -94 0 +65 76 -87 0 +23 51 -62 0 +-11 -36 57 0 +41 59 -65 0 +-56 72 -91 0 +13 -20 -46 0 +-13 15 79 0 +-17 47 -60 0 +-13 -44 99 0 +-7 -38 67 0 +37 -49 62 0 +-14 -17 -79 0 +-13 -15 -22 0 +32 -33 -34 0 +24 45 48 0 +21 24 -48 0 +-36 64 -85 0 +10 -61 67 0 +-5 44 59 0 +-80 -85 -99 0 +6 37 -97 0 +-21 -34 64 0 +-5 44 46 0 +58 -76 97 0 +-21 -36 75 0 +-15 58 -59 0 +-58 -76 -99 0 +-2 15 33 0 +-26 34 -57 0 +-18 -82 -92 0 +27 -80 -97 0 +6 32 63 0 +-34 -86 92 0 +13 -61 97 0 +-28 43 -98 0 +5 39 -86 0 +39 -45 92 0 +27 -43 97 0 +13 -58 -86 0 +-28 -67 -93 0 +-69 85 99 0 +42 71 -72 0 +10 -27 -63 0 +-59 63 -83 0 +36 86 -96 0 +-2 36 75 0 +-59 -71 89 0 +36 -67 91 0 +36 -60 63 0 +-63 91 -93 0 +25 87 92 0 +-21 49 -71 0 +-2 10 22 0 +6 -18 41 0 +6 71 -92 0 +-53 -69 -71 0 +-2 -53 -58 0 +43 -45 -96 0 +34 -45 -69 0 +63 -86 -98 0 diff --git a/sat-chaff/test_inputs/aim-50.dimacs b/sat-chaff/test_inputs/aim-50.dimacs new file mode 100644 index 0000000..63321e0 --- /dev/null +++ b/sat-chaff/test_inputs/aim-50.dimacs @@ -0,0 +1,91 @@ +c FILE: aim-50-1_6-yes1-4.cnf +c +c SOURCE: Kazuo Iwama, Eiji Miyano (miyano@cscu.kyushu-u.ac.jp), +c and Yuichi Asahiro +c +c DESCRIPTION: Artifical instances from generator by source. Generators +c and more information in sat/contributed/iwama. +c +c NOTE: Satisfiable +c +p cnf 50 80 +16 17 30 0 +-17 22 30 0 +-17 -22 30 0 +16 -30 47 0 +16 -30 -47 0 +-16 -21 31 0 +-16 -21 -31 0 +-16 21 -28 0 +-13 21 28 0 +13 -16 18 0 +13 -18 -38 0 +13 -18 -31 0 +31 38 44 0 +-8 31 -44 0 +8 -12 -44 0 +8 12 -27 0 +12 27 40 0 +-4 27 -40 0 +12 23 -40 0 +-3 4 -23 0 +3 -23 -49 0 +3 -13 -49 0 +-23 -26 49 0 +12 -34 49 0 +-12 26 -34 0 +19 34 36 0 +-19 26 36 0 +-30 34 -36 0 +24 34 -36 0 +-24 -36 43 0 +6 42 -43 0 +-24 42 -43 0 +-5 -24 -42 0 +5 20 -42 0 +5 -7 -20 0 +4 7 10 0 +-4 10 -20 0 +7 -10 -41 0 +-10 41 46 0 +-33 41 -46 0 +33 -37 -46 0 +32 33 37 0 +6 -32 37 0 +-6 25 -32 0 +-6 -25 -48 0 +-9 28 48 0 +-9 -25 -28 0 +19 -25 48 0 +2 9 -19 0 +-2 -19 35 0 +-2 22 -35 0 +-22 -35 50 0 +-17 -35 -50 0 +-29 -35 -50 0 +-1 29 -50 0 +1 11 29 0 +-11 17 -45 0 +-11 39 45 0 +-26 39 45 0 +-3 -26 45 0 +-11 15 -39 0 +14 -15 -39 0 +14 -15 -45 0 +14 -15 -27 0 +-14 -15 47 0 +17 17 40 0 +1 -29 -31 0 +-7 32 38 0 +-14 -33 -47 0 +-1 2 -8 0 +35 43 44 0 +21 21 24 0 +20 29 -48 0 +23 35 -37 0 +2 18 -33 0 +15 25 -45 0 +9 14 -38 0 +-5 11 50 0 +-3 -13 46 0 +-13 -41 43 0 diff --git a/sat-chaff/test_inputs/big.dimacs b/sat-chaff/test_inputs/big.dimacs new file mode 100644 index 0000000..7a0c5ae --- /dev/null +++ b/sat-chaff/test_inputs/big.dimacs @@ -0,0 +1,3669 @@ +p cnf 1040 3668 +700 0 +-985 0 +1039 0 +700 0 +-701 0 +699 0 +663 -664 0 +-663 664 0 +699 701 0 +-699 -701 0 +-667 -706 0 +-665 -706 0 +-669 -706 0 +699 663 0 +-699 -663 0 +985 -701 0 +-985 701 0 +985 -664 0 +-985 664 0 +701 -664 0 +-701 664 0 +-39 -988 0 +37 -988 0 +39 -989 0 +-37 -989 0 +-989 987 0 +-988 987 0 +201 37 0 +-201 -37 0 +-202 38 0 +203 39 0 +-203 -39 0 +207 201 0 +-207 -201 0 +-208 202 0 +209 203 0 +-209 -203 0 +62 -204 0 +-62 204 0 +62 -207 0 +-62 207 0 +62 -214 0 +-62 214 0 +62 -259 0 +-62 259 0 +62 -288 0 +-62 288 0 +62 -436 0 +-62 436 0 +62 -495 0 +-62 495 0 +62 -544 0 +-62 544 0 +62 -597 0 +-62 597 0 +62 -639 0 +-62 639 0 +62 -708 0 +-62 708 0 +62 -736 0 +-62 736 0 +62 -762 0 +-62 762 0 +62 -778 0 +-62 778 0 +62 -827 0 +-62 827 0 +62 -838 0 +-62 838 0 +62 -854 0 +-62 854 0 +62 -914 0 +-62 914 0 +62 -949 0 +-62 949 0 +63 -205 0 +63 -208 0 +63 -215 0 +63 -260 0 +63 -289 0 +63 -437 0 +63 -496 0 +63 -545 0 +63 -598 0 +63 -640 0 +63 -709 0 +63 -737 0 +63 -763 0 +63 -779 0 +63 -828 0 +63 -839 0 +63 -855 0 +63 -915 0 +63 -950 0 +64 -206 0 +-64 206 0 +64 -209 0 +-64 209 0 +64 -216 0 +-64 216 0 +64 -261 0 +-64 261 0 +64 -290 0 +-64 290 0 +64 -438 0 +-64 438 0 +64 -497 0 +-64 497 0 +64 -546 0 +-64 546 0 +64 -599 0 +-64 599 0 +64 -641 0 +-64 641 0 +64 -710 0 +-64 710 0 +64 -738 0 +-64 738 0 +64 -764 0 +-64 764 0 +64 -780 0 +-64 780 0 +64 -829 0 +-64 829 0 +64 -840 0 +-64 840 0 +64 -856 0 +-64 856 0 +64 -916 0 +-64 916 0 +64 -951 0 +-64 951 0 +699 62 0 +663 62 0 +65 62 0 +685 62 0 +701 64 0 +663 64 0 +65 64 0 +685 64 0 +836 685 0 +-836 -685 0 +686 -836 0 +-686 836 0 +686 -837 0 +-686 837 0 +-884 -686 0 +-885 -686 0 +690 -697 0 +-690 697 0 +690 -698 0 +-690 698 0 +690 -730 0 +-690 730 0 +690 -885 0 +-690 885 0 +26 690 0 +-26 -690 0 +7 -881 0 +-7 881 0 +7 -884 0 +-7 884 0 +-286 -65 0 +-68 -65 0 +61 -67 0 +-61 67 0 +61 -68 0 +-61 68 0 +-547 -61 0 +-533 -61 0 +514 -533 0 +-514 533 0 +514 -534 0 +-514 534 0 +536 514 0 +-536 -514 0 +32 -536 0 +-32 536 0 +32 -537 0 +-32 537 0 +32 -568 0 +-32 568 0 +5 -547 0 +-5 547 0 +5 -548 0 +-5 548 0 +66 -286 0 +-66 286 0 +66 -287 0 +-66 287 0 +-857 -66 0 +-850 -66 0 +841 -848 0 +-841 848 0 +841 -849 0 +-841 849 0 +841 -850 0 +-841 850 0 +841 -878 0 +-841 878 0 +9 841 0 +-9 -841 0 +21 -857 0 +-21 857 0 +21 -858 0 +-21 858 0 +-667 -663 0 +-665 -663 0 +-669 -663 0 +494 -668 0 +-494 668 0 +494 -669 0 +-494 669 0 +-512 -494 0 +-513 -494 0 +470 -490 0 +-470 490 0 +470 -493 0 +-470 493 0 +470 -508 0 +-470 508 0 +470 -513 0 +-470 513 0 +34 470 0 +-34 -470 0 +25 -509 0 +-25 509 0 +25 -512 0 +-25 512 0 +796 665 0 +781 665 0 +797 665 0 +947 797 0 +-947 -797 0 +926 -947 0 +-926 947 0 +926 -948 0 +-926 948 0 +-945 -926 0 +-946 -926 0 +927 -938 0 +-927 938 0 +927 -941 0 +-927 941 0 +927 -946 0 +-927 946 0 +927 -962 0 +-927 962 0 +19 927 0 +-19 -927 0 +17 -942 0 +-17 942 0 +17 -945 0 +-17 945 0 +783 781 0 +-783 -781 0 +777 -782 0 +-777 782 0 +777 -783 0 +-777 783 0 +-924 -777 0 +-925 -777 0 +587 -917 0 +-587 917 0 +587 -918 0 +-587 918 0 +587 -925 0 +-587 925 0 +910 587 0 +-910 -587 0 +35 -909 0 +-35 909 0 +35 -910 0 +-35 910 0 +30 -921 0 +-30 921 0 +30 -924 0 +-30 924 0 +799 796 0 +-799 -796 0 +213 -798 0 +-213 798 0 +213 -799 0 +-213 799 0 +-775 -213 0 +-776 -213 0 +220 -233 0 +-220 233 0 +220 -234 0 +-220 234 0 +220 -424 0 +-220 424 0 +220 -776 0 +-220 776 0 +28 220 0 +-28 -220 0 +4 -772 0 +-4 772 0 +4 -775 0 +-4 775 0 +591 -666 0 +-591 666 0 +591 -667 0 +-591 667 0 +-600 -591 0 +-593 -591 0 +580 -592 0 +-580 592 0 +580 -593 0 +-580 593 0 +627 580 0 +-627 -580 0 +6 -627 0 +-6 627 0 +6 -628 0 +-6 628 0 +6 -638 0 +-6 638 0 +10 -600 0 +-10 600 0 +10 -601 0 +-10 601 0 +706 699 0 +-706 -699 0 +702 -706 0 +-702 706 0 +702 -707 0 +-702 707 0 +-889 -702 0 +-890 -702 0 +711 -718 0 +-711 718 0 +711 -719 0 +-711 719 0 +711 -756 0 +-711 756 0 +711 -890 0 +-711 890 0 +27 711 0 +-27 -711 0 +11 -886 0 +-11 886 0 +11 -889 0 +-11 889 0 +-42 -995 0 +40 -995 0 +42 -996 0 +-40 -996 0 +-996 994 0 +-995 994 0 +657 40 0 +-657 -40 0 +-658 41 0 +659 42 0 +-659 -42 0 +195 -657 0 +-195 657 0 +195 -660 0 +-195 660 0 +195 -676 0 +-195 676 0 +196 -658 0 +196 -661 0 +196 -677 0 +197 -659 0 +-197 659 0 +197 -662 0 +-197 662 0 +197 -678 0 +-197 678 0 +250 195 0 +-250 -195 0 +-251 196 0 +252 197 0 +-252 -197 0 +87 -235 0 +-87 235 0 +87 -238 0 +-87 238 0 +87 -250 0 +-87 250 0 +87 -262 0 +-87 262 0 +87 -271 0 +-87 271 0 +87 -309 0 +-87 309 0 +87 -315 0 +-87 315 0 +87 -324 0 +-87 324 0 +87 -339 0 +-87 339 0 +87 -439 0 +-87 439 0 +87 -521 0 +-87 521 0 +87 -551 0 +-87 551 0 +87 -604 0 +-87 604 0 +87 -620 0 +-87 620 0 +87 -739 0 +-87 739 0 +87 -765 0 +-87 765 0 +87 -793 0 +-87 793 0 +87 -824 0 +-87 824 0 +87 -830 0 +-87 830 0 +87 -861 0 +-87 861 0 +87 -901 0 +-87 901 0 +88 -236 0 +88 -239 0 +88 -251 0 +88 -263 0 +88 -272 0 +88 -310 0 +88 -316 0 +88 -325 0 +88 -340 0 +88 -440 0 +88 -522 0 +88 -552 0 +88 -605 0 +88 -621 0 +88 -740 0 +88 -766 0 +88 -794 0 +88 -825 0 +88 -831 0 +88 -862 0 +88 -902 0 +89 -237 0 +-89 237 0 +89 -240 0 +-89 240 0 +89 -252 0 +-89 252 0 +89 -264 0 +-89 264 0 +89 -273 0 +-89 273 0 +89 -311 0 +-89 311 0 +89 -317 0 +-89 317 0 +89 -326 0 +-89 326 0 +89 -341 0 +-89 341 0 +89 -441 0 +-89 441 0 +89 -523 0 +-89 523 0 +89 -553 0 +-89 553 0 +89 -606 0 +-89 606 0 +89 -622 0 +-89 622 0 +89 -741 0 +-89 741 0 +89 -767 0 +-89 767 0 +89 -795 0 +-89 795 0 +89 -826 0 +-89 826 0 +89 -832 0 +-89 832 0 +89 -863 0 +-89 863 0 +89 -903 0 +-89 903 0 +108 87 0 +651 87 0 +446 87 0 +464 87 0 +-109 88 0 +-652 88 0 +-447 88 0 +-465 88 0 +110 89 0 +653 89 0 +448 89 0 +466 89 0 +480 464 0 +-480 -464 0 +-481 465 0 +482 466 0 +-482 -466 0 +268 -477 0 +-268 477 0 +268 -480 0 +-268 480 0 +269 -478 0 +269 -481 0 +270 -479 0 +-270 479 0 +270 -482 0 +-270 482 0 +-498 -268 0 +-489 -268 0 +-493 -268 0 +-499 269 0 +-499 -493 0 +-499 -489 0 +-500 -270 0 +-489 -270 0 +-493 -270 0 +12 -486 0 +-12 486 0 +12 -489 0 +-12 489 0 +483 -498 0 +-483 498 0 +483 -501 0 +-483 501 0 +484 -499 0 +484 -502 0 +485 -500 0 +-485 500 0 +485 -503 0 +-485 503 0 +-668 -975 0 +495 -975 0 +668 -976 0 +-495 -976 0 +-976 483 0 +-975 483 0 +-496 484 0 +-668 -1001 0 +497 -1001 0 +668 -1002 0 +-497 -1002 0 +-1002 485 0 +-1001 485 0 +-458 -446 0 +-787 -446 0 +-679 -446 0 +-459 447 0 +-788 447 0 +-680 447 0 +-460 -448 0 +-789 -448 0 +-681 -448 0 +452 -679 0 +-452 679 0 +452 -682 0 +-452 682 0 +452 -821 0 +-452 821 0 +453 -680 0 +453 -683 0 +453 -822 0 +454 -681 0 +-454 681 0 +454 -684 0 +-454 684 0 +454 -823 0 +-454 823 0 +-952 -452 0 +-937 -452 0 +-941 -452 0 +-953 453 0 +-953 -941 0 +-953 -937 0 +-954 -454 0 +-937 -454 0 +-941 -454 0 +18 -934 0 +-18 934 0 +18 -937 0 +-18 937 0 +931 -952 0 +-931 952 0 +931 -955 0 +-931 955 0 +932 -953 0 +932 -956 0 +933 -954 0 +-933 954 0 +933 -957 0 +-933 957 0 +-948 -963 0 +949 -963 0 +948 -964 0 +-949 -964 0 +-964 931 0 +-963 931 0 +-950 932 0 +-948 -1003 0 +951 -1003 0 +948 -1004 0 +-951 -1004 0 +-1004 933 0 +-1003 933 0 +449 -787 0 +-449 787 0 +449 -790 0 +-449 790 0 +450 -788 0 +450 -791 0 +451 -789 0 +-451 789 0 +451 -792 0 +-451 792 0 +-806 -449 0 +-897 -449 0 +-917 -449 0 +-807 450 0 +-807 -917 0 +-807 -897 0 +-808 -451 0 +-897 -451 0 +-917 -451 0 +22 -897 0 +-22 897 0 +22 -898 0 +-22 898 0 +584 -806 0 +-584 806 0 +584 -809 0 +-584 809 0 +585 -807 0 +585 -810 0 +586 -808 0 +-586 808 0 +586 -811 0 +-586 811 0 +-782 -969 0 +778 -969 0 +782 -970 0 +-778 -970 0 +-970 584 0 +-969 584 0 +-779 585 0 +-782 -1005 0 +780 -1005 0 +782 -1006 0 +-780 -1006 0 +-1006 586 0 +-1005 586 0 +217 -455 0 +-217 455 0 +217 -458 0 +-217 458 0 +218 -456 0 +218 -459 0 +219 -457 0 +-219 457 0 +219 -460 0 +-219 460 0 +-227 -217 0 +-442 -217 0 +-233 -217 0 +-228 218 0 +-228 -233 0 +-228 -442 0 +-229 -219 0 +-442 -219 0 +-233 -219 0 +23 -442 0 +-23 442 0 +23 -443 0 +-23 443 0 +210 -227 0 +-210 227 0 +210 -230 0 +-210 230 0 +211 -228 0 +211 -231 0 +212 -229 0 +-212 229 0 +212 -232 0 +-212 232 0 +-798 -981 0 +214 -981 0 +798 -982 0 +-214 -982 0 +-982 210 0 +-981 210 0 +-215 211 0 +-798 -1007 0 +216 -1007 0 +798 -1008 0 +-216 -1008 0 +-1008 212 0 +-1007 212 0 +461 -651 0 +-461 651 0 +461 -654 0 +-461 654 0 +462 -652 0 +462 -655 0 +463 -653 0 +-463 653 0 +463 -656 0 +-463 656 0 +614 461 0 +-614 -461 0 +-615 462 0 +616 463 0 +-616 -463 0 +581 -614 0 +-581 614 0 +581 -617 0 +-581 617 0 +582 -615 0 +582 -618 0 +583 -616 0 +-583 616 0 +583 -619 0 +-583 619 0 +-645 -581 0 +-607 -581 0 +-592 -581 0 +-646 582 0 +-646 -592 0 +-646 -607 0 +-647 -583 0 +-607 -583 0 +-592 -583 0 +33 -607 0 +-33 607 0 +33 -608 0 +-33 608 0 +588 -645 0 +-588 645 0 +588 -648 0 +-588 648 0 +589 -646 0 +589 -649 0 +590 -647 0 +-590 647 0 +590 -650 0 +-590 650 0 +-666 -973 0 +639 -973 0 +666 -974 0 +-639 -974 0 +-974 588 0 +-973 588 0 +-640 589 0 +-666 -1009 0 +641 -1009 0 +666 -1010 0 +-641 -1010 0 +-1010 590 0 +-1009 590 0 +-123 -108 0 +-318 -108 0 +-303 -108 0 +-333 -108 0 +-124 109 0 +-319 109 0 +-304 109 0 +-334 109 0 +-125 -110 0 +-320 -110 0 +-305 -110 0 +-335 -110 0 +117 -333 0 +-117 333 0 +117 -336 0 +-117 336 0 +117 -518 0 +-117 518 0 +118 -334 0 +118 -337 0 +118 -519 0 +119 -335 0 +-119 335 0 +119 -338 0 +-119 338 0 +119 -520 0 +-119 520 0 +-530 -117 0 +-554 -117 0 +-534 -117 0 +-531 118 0 +-531 -534 0 +-531 -554 0 +-532 -119 0 +-554 -119 0 +-534 -119 0 +29 -554 0 +-29 554 0 +29 -555 0 +-29 555 0 +58 -527 0 +-58 527 0 +58 -530 0 +-58 530 0 +59 -528 0 +59 -531 0 +60 -529 0 +-60 529 0 +60 -532 0 +-60 532 0 +-67 -983 0 +204 -983 0 +67 -984 0 +-204 -984 0 +-984 58 0 +-983 58 0 +-205 59 0 +-67 -1011 0 +206 -1011 0 +67 -1012 0 +-206 -1012 0 +-1012 60 0 +-1011 60 0 +114 -303 0 +-114 303 0 +114 -306 0 +-114 306 0 +114 -312 0 +-114 312 0 +115 -304 0 +115 -307 0 +115 -313 0 +116 -305 0 +-116 305 0 +116 -308 0 +-116 308 0 +116 -314 0 +-116 314 0 +-694 -114 0 +-742 -114 0 +-698 -114 0 +-695 115 0 +-695 -698 0 +-695 -742 0 +-696 -116 0 +-742 -116 0 +-698 -116 0 +31 -742 0 +-31 742 0 +31 -743 0 +-31 743 0 +687 -691 0 +-687 691 0 +687 -694 0 +-687 694 0 +688 -692 0 +688 -695 0 +689 -693 0 +-689 693 0 +689 -696 0 +-689 696 0 +-837 -965 0 +838 -965 0 +837 -966 0 +-838 -966 0 +-966 687 0 +-965 687 0 +-839 688 0 +-837 -1013 0 +840 -1013 0 +837 -1014 0 +-840 -1014 0 +-1014 689 0 +-1013 689 0 +111 -318 0 +-111 318 0 +111 -321 0 +-111 321 0 +112 -319 0 +112 -322 0 +113 -320 0 +-113 320 0 +113 -323 0 +-113 323 0 +-842 -111 0 +-864 -111 0 +-848 -111 0 +-843 112 0 +-843 -848 0 +-843 -864 0 +-844 -113 0 +-864 -113 0 +-848 -113 0 +20 -864 0 +-20 864 0 +20 -865 0 +-20 865 0 +283 -842 0 +-283 842 0 +283 -845 0 +-283 845 0 +284 -843 0 +284 -846 0 +285 -844 0 +-285 844 0 +285 -847 0 +-285 847 0 +-287 -977 0 +288 -977 0 +287 -978 0 +-288 -978 0 +-978 283 0 +-977 283 0 +-289 284 0 +-287 -1015 0 +290 -1015 0 +287 -1016 0 +-290 -1016 0 +-1016 285 0 +-1015 285 0 +84 -120 0 +-84 120 0 +84 -123 0 +-84 123 0 +85 -121 0 +85 -124 0 +86 -122 0 +-86 122 0 +86 -125 0 +-86 125 0 +-712 -84 0 +-768 -84 0 +-718 -84 0 +-713 85 0 +-713 -718 0 +-713 -768 0 +-714 -86 0 +-768 -86 0 +-718 -86 0 +15 -768 0 +-15 768 0 +15 -769 0 +-15 769 0 +703 -712 0 +-703 712 0 +703 -715 0 +-703 715 0 +704 -713 0 +704 -716 0 +705 -714 0 +-705 714 0 +705 -717 0 +-705 717 0 +-707 -971 0 +708 -971 0 +707 -972 0 +-708 -972 0 +-972 703 0 +-971 703 0 +-709 704 0 +-707 -1017 0 +710 -1017 0 +707 -1018 0 +-710 -1018 0 +-1018 705 0 +-1017 705 0 +-45 -1020 0 +43 -1020 0 +45 -1021 0 +-43 -1021 0 +-1021 1019 0 +-1020 1019 0 +558 43 0 +-558 -43 0 +-559 44 0 +560 45 0 +-560 -45 0 +247 -558 0 +-247 558 0 +247 -561 0 +-247 561 0 +247 -624 0 +-247 624 0 +248 -559 0 +248 -562 0 +248 -625 0 +249 -560 0 +-249 560 0 +249 -563 0 +-249 563 0 +249 -626 0 +-249 626 0 +577 247 0 +-577 -247 0 +-578 248 0 +579 249 0 +-579 -249 0 +102 -471 0 +-102 471 0 +102 -474 0 +-102 474 0 +102 -577 0 +-102 577 0 +102 -723 0 +-102 723 0 +102 -749 0 +-102 749 0 +102 -871 0 +-102 871 0 +102 -894 0 +-102 894 0 +102 -928 0 +-102 928 0 +103 -472 0 +103 -475 0 +103 -578 0 +103 -724 0 +103 -750 0 +103 -872 0 +103 -895 0 +103 -929 0 +104 -473 0 +-104 473 0 +104 -476 0 +-104 476 0 +104 -579 0 +-104 579 0 +104 -725 0 +-104 725 0 +104 -751 0 +-104 751 0 +104 -873 0 +-104 873 0 +104 -896 0 +-104 896 0 +104 -930 0 +-104 930 0 +75 102 0 +105 102 0 +90 102 0 +-76 103 0 +-106 103 0 +-91 103 0 +77 104 0 +107 104 0 +92 104 0 +-99 -90 0 +-94 91 0 +-97 91 0 +-100 91 0 +-101 -92 0 +-527 -99 0 +-524 -99 0 +-516 100 0 +-328 100 0 +-528 100 0 +-528 -524 0 +-328 -524 0 +-516 -524 0 +-529 -101 0 +-524 -101 0 +564 524 0 +537 524 0 +535 -564 0 +-535 564 0 +535 -565 0 +-535 565 0 +14 535 0 +-14 -535 0 +330 327 0 +-330 -327 0 +-331 328 0 +332 329 0 +-332 -329 0 +-336 -330 0 +-339 -330 0 +-337 331 0 +-340 331 0 +-338 -332 0 +-341 -332 0 +518 515 0 +521 515 0 +-519 516 0 +-522 516 0 +520 517 0 +523 517 0 +-845 -96 0 +-874 -96 0 +-849 -96 0 +-846 97 0 +-846 -849 0 +-846 -874 0 +-847 -98 0 +-874 -98 0 +-849 -98 0 +8 -874 0 +-8 874 0 +8 -875 0 +-8 875 0 +-322 94 0 +-325 94 0 +-241 -105 0 +-221 -105 0 +-244 -105 0 +-242 106 0 +-222 106 0 +-245 106 0 +-243 -107 0 +-223 -107 0 +-246 -107 0 +803 244 0 +-785 245 0 +-810 245 0 +-804 245 0 +-810 -800 0 +-785 -800 0 +805 246 0 +833 803 0 +-671 804 0 +-819 804 0 +-834 804 0 +835 805 0 +-955 -833 0 +-961 -833 0 +-962 -833 0 +-956 834 0 +-956 -962 0 +-956 -961 0 +-957 -835 0 +-961 -835 0 +-962 -835 0 +3 -958 0 +-3 958 0 +3 -961 0 +-3 961 0 +-821 -818 0 +-824 -818 0 +-822 819 0 +-825 819 0 +-823 -820 0 +-826 -820 0 +-673 -670 0 +-676 -670 0 +-674 671 0 +-677 671 0 +-675 -672 0 +-678 -672 0 +682 673 0 +-682 -673 0 +-683 674 0 +684 675 0 +-684 -675 0 +904 800 0 +909 800 0 +908 904 0 +-908 -904 0 +1 -905 0 +-1 905 0 +1 -908 0 +-1 908 0 +-790 -967 0 +793 -967 0 +790 -968 0 +-793 -968 0 +-968 784 0 +-967 784 0 +-791 785 0 +-794 785 0 +-792 -1023 0 +795 -1023 0 +792 -1024 0 +-795 -1024 0 +-1024 786 0 +-1023 786 0 +-224 -221 0 +-230 -221 0 +-420 -221 0 +-234 -221 0 +-225 222 0 +-231 222 0 +-231 -234 0 +-231 -420 0 +-225 -234 0 +-225 -420 0 +-226 -223 0 +-232 -223 0 +-420 -223 0 +-234 -223 0 +16 -420 0 +-16 420 0 +16 -421 0 +-16 421 0 +-455 -979 0 +238 -979 0 +455 -980 0 +-238 -980 0 +-980 224 0 +-979 224 0 +-456 225 0 +-239 225 0 +-457 -1025 0 +240 -1025 0 +457 -1026 0 +-240 -1026 0 +-1026 226 0 +-1025 226 0 +274 241 0 +-274 -241 0 +-275 242 0 +276 243 0 +-276 -243 0 +-280 -274 0 +-266 275 0 +-278 275 0 +-281 275 0 +-282 -276 0 +-648 -280 0 +-631 -280 0 +-612 281 0 +-643 281 0 +-649 281 0 +-649 -631 0 +-643 -631 0 +-612 -631 0 +-650 -282 0 +-631 -282 0 +637 631 0 +638 631 0 +623 -634 0 +-623 634 0 +623 -637 0 +-623 637 0 +13 623 0 +-13 -623 0 +654 642 0 +660 642 0 +-655 643 0 +-661 643 0 +656 644 0 +662 644 0 +617 611 0 +620 611 0 +-618 612 0 +-621 612 0 +619 613 0 +622 613 0 +-501 -277 0 +-507 -277 0 +-508 -277 0 +-502 278 0 +-502 -508 0 +-502 -507 0 +-503 -279 0 +-507 -279 0 +-508 -279 0 +36 -504 0 +-36 504 0 +36 -507 0 +-36 507 0 +-478 266 0 +-272 266 0 +-69 -75 0 +-79 76 0 +-82 76 0 +-70 76 0 +-71 -77 0 +72 69 0 +-72 -69 0 +-73 70 0 +74 71 0 +-74 -71 0 +297 72 0 +-292 73 0 +-295 73 0 +-298 73 0 +299 74 0 +-691 -297 0 +-726 -297 0 +-697 -297 0 +-692 298 0 +-692 -697 0 +-692 -726 0 +-693 -299 0 +-726 -299 0 +-697 -299 0 +24 -726 0 +-24 726 0 +24 -727 0 +-24 727 0 +-312 -294 0 +-315 -294 0 +-313 295 0 +-316 295 0 +-314 -296 0 +-317 -296 0 +300 291 0 +-300 -291 0 +-301 292 0 +302 293 0 +-302 -293 0 +306 300 0 +309 300 0 +-307 301 0 +-310 301 0 +308 302 0 +311 302 0 +-715 -81 0 +-752 -81 0 +-719 -81 0 +-716 82 0 +-716 -719 0 +-716 -752 0 +-717 -83 0 +-752 -83 0 +-719 -83 0 +2 -752 0 +-2 752 0 +2 -753 0 +-2 753 0 +-121 79 0 +-236 79 0 +-57 -1028 0 +55 -1028 0 +57 -1029 0 +-55 -1029 0 +-1029 1027 0 +-1028 1027 0 +-198 -55 0 +-174 -55 0 +-199 56 0 +-175 56 0 +-200 -57 0 +-176 -57 0 +-189 -174 0 +-180 -174 0 +-183 -174 0 +-375 -174 0 +-190 175 0 +-181 175 0 +-184 175 0 +-376 175 0 +-191 -176 0 +-182 -176 0 +-185 -176 0 +-377 -176 0 +186 -375 0 +-186 375 0 +186 -378 0 +-186 378 0 +186 -396 0 +-186 396 0 +187 -376 0 +187 -379 0 +187 -397 0 +188 -377 0 +-188 377 0 +188 -380 0 +-188 380 0 +188 -398 0 +-188 398 0 +-756 -186 0 +-746 -186 0 +-750 187 0 +-747 187 0 +-747 -756 0 +-750 753 0 +-754 -756 0 +-750 -756 0 +-756 -188 0 +-748 -188 0 +759 746 0 +-759 -746 0 +-760 747 0 +761 748 0 +-761 -748 0 +-763 760 0 +-766 760 0 +-766 769 0 +-763 886 0 +571 183 0 +574 183 0 +-572 184 0 +-575 184 0 +573 185 0 +576 185 0 +138 -354 0 +-138 354 0 +138 -357 0 +-138 357 0 +138 -363 0 +-138 363 0 +138 -574 0 +-138 574 0 +139 -355 0 +139 -358 0 +139 -364 0 +139 -575 0 +140 -356 0 +-140 356 0 +140 -359 0 +-140 359 0 +140 -365 0 +-140 365 0 +140 -576 0 +-140 576 0 +538 138 0 +-538 -138 0 +-539 139 0 +540 140 0 +-540 -140 0 +-851 -538 0 +-855 539 0 +-862 539 0 +-852 539 0 +-862 865 0 +-855 858 0 +-853 -540 0 +868 851 0 +-868 -851 0 +-869 852 0 +870 853 0 +-870 -853 0 +-878 -868 0 +-872 869 0 +-872 875 0 +-876 -878 0 +-872 -878 0 +-878 -870 0 +348 -366 0 +-348 366 0 +348 -369 0 +-348 369 0 +348 -381 0 +-348 381 0 +348 -402 0 +-348 402 0 +348 -571 0 +-348 571 0 +349 -367 0 +349 -370 0 +349 -382 0 +349 -403 0 +349 -572 0 +350 -368 0 +-350 368 0 +350 -371 0 +-350 371 0 +350 -383 0 +-350 383 0 +350 -404 0 +-350 404 0 +350 -573 0 +-350 573 0 +733 348 0 +720 348 0 +-734 349 0 +-721 349 0 +735 350 0 +722 350 0 +-730 -720 0 +-724 721 0 +-724 727 0 +-728 -730 0 +-724 -730 0 +-730 -722 0 +-737 734 0 +-740 734 0 +-740 743 0 +-737 881 0 +393 180 0 +384 180 0 +405 180 0 +-394 181 0 +-385 181 0 +-406 181 0 +395 182 0 +386 182 0 +407 182 0 +387 -405 0 +-387 405 0 +387 -408 0 +-387 408 0 +388 -406 0 +388 -409 0 +389 -407 0 +-389 407 0 +389 -410 0 +-389 410 0 +414 387 0 +-414 -387 0 +-415 388 0 +416 389 0 +-416 -389 0 +360 -411 0 +-360 411 0 +360 -414 0 +-360 414 0 +361 -412 0 +361 -415 0 +362 -413 0 +-362 413 0 +362 -416 0 +-362 416 0 +-594 -360 0 +-598 361 0 +-605 361 0 +-595 361 0 +-605 608 0 +-598 601 0 +-596 -362 0 +628 594 0 +-625 595 0 +-625 -634 0 +-635 628 0 +-625 628 0 +628 596 0 +-433 -384 0 +-428 385 0 +-418 385 0 +-434 385 0 +-435 -386 0 +253 -430 0 +-253 430 0 +253 -433 0 +-253 433 0 +254 -431 0 +254 -434 0 +255 -432 0 +-255 432 0 +255 -435 0 +-255 435 0 +-256 -253 0 +-260 254 0 +-263 254 0 +-257 254 0 +-263 486 0 +-260 509 0 +-258 -255 0 +467 256 0 +-467 -256 0 +-468 257 0 +469 258 0 +-469 -258 0 +-490 -467 0 +-475 468 0 +-475 504 0 +-505 -490 0 +-475 -490 0 +-490 -469 0 +-424 -417 0 +-472 418 0 +-472 421 0 +-422 -424 0 +-472 -424 0 +-424 -419 0 +-437 428 0 +-440 428 0 +-440 443 0 +-437 772 0 +345 -390 0 +-345 390 0 +345 -393 0 +-345 393 0 +346 -391 0 +346 -394 0 +347 -392 0 +-347 392 0 +347 -395 0 +-347 395 0 +568 345 0 +541 345 0 +-562 346 0 +-542 346 0 +-542 568 0 +-562 -565 0 +-566 568 0 +-562 568 0 +568 347 0 +543 347 0 +-545 542 0 +-552 542 0 +-552 555 0 +-545 548 0 +177 -189 0 +-177 189 0 +177 -192 0 +-177 192 0 +178 -190 0 +178 -193 0 +179 -191 0 +-179 191 0 +179 -194 0 +-179 194 0 +-812 -177 0 +-828 178 0 +-831 178 0 +-813 178 0 +-831 934 0 +-828 942 0 +-814 -179 0 +815 812 0 +-815 -812 0 +-816 813 0 +817 814 0 +-817 -814 0 +-938 -815 0 +-929 816 0 +-929 958 0 +-959 -938 0 +-929 -938 0 +-938 -817 0 +-911 -198 0 +-918 -198 0 +-915 199 0 +-912 199 0 +-912 -918 0 +-915 921 0 +-915 -918 0 +-922 -918 0 +-913 -200 0 +-918 -200 0 +891 911 0 +-891 -911 0 +-892 912 0 +893 913 0 +-893 -913 0 +-895 892 0 +-902 892 0 +-902 898 0 +-895 905 0 +-51 -1031 0 +49 -1031 0 +51 -1032 0 +-49 -1032 0 +-1032 1030 0 +-1031 1030 0 +150 49 0 +159 49 0 +132 49 0 +144 49 0 +-151 50 0 +-160 50 0 +-133 50 0 +-145 50 0 +152 51 0 +161 51 0 +134 51 0 +146 51 0 +135 -144 0 +-135 144 0 +135 -147 0 +-135 147 0 +135 -351 0 +-135 351 0 +135 -399 0 +-135 399 0 +136 -145 0 +136 -148 0 +136 -352 0 +136 -400 0 +137 -146 0 +-137 146 0 +137 -149 0 +-137 149 0 +137 -353 0 +-137 353 0 +137 -401 0 +-137 401 0 +396 135 0 +-396 -135 0 +-397 136 0 +398 137 0 +-398 -137 0 +363 132 0 +411 132 0 +369 132 0 +-364 133 0 +-412 133 0 +-370 133 0 +365 134 0 +413 134 0 +371 134 0 +129 -159 0 +-129 159 0 +129 -162 0 +-129 162 0 +130 -160 0 +130 -163 0 +131 -161 0 +-131 161 0 +131 -164 0 +-131 164 0 +351 129 0 +357 129 0 +366 129 0 +342 129 0 +-352 130 0 +-358 130 0 +-367 130 0 +-343 130 0 +353 131 0 +359 131 0 +368 131 0 +344 131 0 +390 342 0 +-390 -342 0 +-391 343 0 +392 344 0 +-392 -344 0 +126 -150 0 +-126 150 0 +126 -153 0 +-126 153 0 +126 -171 0 +-126 171 0 +127 -151 0 +127 -154 0 +127 -172 0 +128 -152 0 +-128 152 0 +128 -155 0 +-128 155 0 +128 -173 0 +-128 173 0 +192 126 0 +-192 -126 0 +-193 127 0 +194 128 0 +-194 -128 0 +-48 -1034 0 +46 -1034 0 +48 -1035 0 +-46 -1035 0 +-1035 1033 0 +-1034 1033 0 +354 46 0 +165 46 0 +147 46 0 +153 46 0 +-355 47 0 +-166 47 0 +-148 47 0 +-154 47 0 +356 48 0 +167 48 0 +149 48 0 +155 48 0 +141 -165 0 +-141 165 0 +141 -168 0 +-141 168 0 +142 -166 0 +142 -169 0 +143 -167 0 +-143 167 0 +143 -170 0 +-143 170 0 +372 141 0 +-372 -141 0 +-373 142 0 +374 143 0 +-374 -143 0 +-378 -372 0 +-381 -372 0 +-379 373 0 +-382 373 0 +-380 -374 0 +-383 -374 0 +-54 -1037 0 +52 -1037 0 +54 -1038 0 +-52 -1038 0 +-1038 1036 0 +-1037 1036 0 +162 52 0 +168 52 0 +156 52 0 +171 52 0 +-163 53 0 +-169 53 0 +-157 53 0 +-172 53 0 +164 54 0 +170 54 0 +158 54 0 +173 54 0 +399 156 0 +430 156 0 +402 156 0 +408 156 0 +-400 157 0 +-431 157 0 +-403 157 0 +-409 157 0 +401 158 0 +432 158 0 +404 158 0 +410 158 0 +-1036 1039 0 +-1033 1039 0 +-1030 1039 0 +-1027 1039 0 +-1019 1039 0 +-994 1039 0 +-987 1039 0 +-986 41 38 0 +988 39 -37 0 +989 -39 37 0 +-987 989 988 0 +-38 37 39 0 +-38 -37 -39 0 +-202 201 203 0 +-202 -201 -203 0 +-950 949 951 0 +-950 -949 -951 0 +-915 914 916 0 +-915 -914 -916 0 +-855 854 856 0 +-855 -854 -856 0 +-839 838 840 0 +-839 -838 -840 0 +-828 827 829 0 +-828 -827 -829 0 +-779 778 780 0 +-779 -778 -780 0 +-763 762 764 0 +-763 -762 -764 0 +-737 736 738 0 +-737 -736 -738 0 +-709 708 710 0 +-709 -708 -710 0 +-640 639 641 0 +-640 -639 -641 0 +-598 597 599 0 +-598 -597 -599 0 +-545 544 546 0 +-545 -544 -546 0 +-496 495 497 0 +-496 -495 -497 0 +-437 436 438 0 +-437 -436 -438 0 +-289 288 290 0 +-289 -288 -290 0 +-260 259 261 0 +-260 -259 -261 0 +-215 214 216 0 +-215 -214 -216 0 +-208 207 209 0 +-208 -207 -209 0 +-205 204 206 0 +-205 -204 -206 0 +-63 62 64 0 +-63 -62 -64 0 +686 884 885 0 +65 286 68 0 +61 547 533 0 +66 857 850 0 +494 512 513 0 +926 945 946 0 +777 924 925 0 +213 775 776 0 +591 600 593 0 +702 889 890 0 +995 42 -40 0 +996 -42 40 0 +-994 996 995 0 +-41 40 42 0 +-41 -40 -42 0 +-677 676 678 0 +-677 -676 -678 0 +-661 660 662 0 +-661 -660 -662 0 +-658 657 659 0 +-658 -657 -659 0 +-196 195 197 0 +-196 -195 -197 0 +-902 901 903 0 +-902 -901 -903 0 +-862 861 863 0 +-862 -861 -863 0 +-831 830 832 0 +-831 -830 -832 0 +-825 824 826 0 +-825 -824 -826 0 +-794 793 795 0 +-794 -793 -795 0 +-766 765 767 0 +-766 -765 -767 0 +-740 739 741 0 +-740 -739 -741 0 +-621 620 622 0 +-621 -620 -622 0 +-605 604 606 0 +-605 -604 -606 0 +-552 551 553 0 +-552 -551 -553 0 +-522 521 523 0 +-522 -521 -523 0 +-440 439 441 0 +-440 -439 -441 0 +-340 339 341 0 +-340 -339 -341 0 +-325 324 326 0 +-325 -324 -326 0 +-316 315 317 0 +-316 -315 -317 0 +-310 309 311 0 +-310 -309 -311 0 +-272 271 273 0 +-272 -271 -273 0 +-263 262 264 0 +-263 -262 -264 0 +-251 250 252 0 +-251 -250 -252 0 +-239 238 240 0 +-239 -238 -240 0 +-236 235 237 0 +-236 -235 -237 0 +-465 -466 448 0 +-465 -464 446 0 +-465 446 448 0 +-465 -466 653 0 +-465 -464 651 0 +-465 651 653 0 +-465 -466 110 0 +-465 -464 108 0 +-465 108 110 0 +-447 -448 466 0 +-447 -446 464 0 +-447 464 466 0 +-447 -448 653 0 +-447 -446 651 0 +-447 651 653 0 +-447 -448 110 0 +-447 -446 108 0 +-447 108 110 0 +-652 -653 466 0 +-652 -651 464 0 +-652 464 466 0 +-652 -653 448 0 +-652 -651 446 0 +-652 446 448 0 +-652 -653 110 0 +-652 -651 108 0 +-652 108 110 0 +-109 -110 466 0 +-109 -108 464 0 +-109 464 466 0 +-109 -110 448 0 +-109 -108 446 0 +-109 446 448 0 +-109 -110 653 0 +-109 -108 651 0 +-109 651 653 0 +-88 87 89 0 +-88 -87 -89 0 +-465 464 466 0 +-465 -464 -466 0 +-269 478 481 0 +-481 480 482 0 +-481 -480 -482 0 +-478 477 479 0 +-478 -477 -479 0 +-269 268 270 0 +-269 -268 -270 0 +-484 499 502 0 +-502 501 503 0 +-502 -501 -503 0 +-499 498 500 0 +-499 -498 -500 0 +975 668 -495 0 +976 -668 495 0 +-483 976 975 0 +-484 483 485 0 +-484 -483 -485 0 +1001 668 -497 0 +1002 -668 497 0 +-485 1002 1001 0 +-680 -681 -787 0 +-680 -679 -789 0 +-680 -787 -789 0 +-680 -681 -458 0 +-680 -679 -460 0 +-680 -458 -460 0 +-788 -789 -679 0 +-788 -787 -681 0 +-788 -679 -681 0 +-788 -789 -458 0 +-788 -787 -460 0 +-788 -458 -460 0 +-459 -460 -679 0 +-459 -458 -681 0 +-459 -679 -681 0 +-459 -460 -787 0 +-459 -458 -789 0 +-459 -787 -789 0 +-447 446 448 0 +-447 -446 -448 0 +-822 821 823 0 +-822 -821 -823 0 +-683 682 684 0 +-683 -682 -684 0 +-680 679 681 0 +-680 -679 -681 0 +-453 452 454 0 +-453 -452 -454 0 +-932 953 956 0 +-956 955 957 0 +-956 -955 -957 0 +-953 952 954 0 +-953 -952 -954 0 +963 948 -949 0 +964 -948 949 0 +-931 964 963 0 +-932 931 933 0 +-932 -931 -933 0 +1003 948 -951 0 +1004 -948 951 0 +-933 1004 1003 0 +-450 788 791 0 +-791 790 792 0 +-791 -790 -792 0 +-788 787 789 0 +-788 -787 -789 0 +-450 449 451 0 +-450 -449 -451 0 +-585 807 810 0 +-810 809 811 0 +-810 -809 -811 0 +-807 806 808 0 +-807 -806 -808 0 +969 782 -778 0 +970 -782 778 0 +-584 970 969 0 +-585 584 586 0 +-585 -584 -586 0 +1005 782 -780 0 +1006 -782 780 0 +-586 1006 1005 0 +-218 456 459 0 +-459 458 460 0 +-459 -458 -460 0 +-456 455 457 0 +-456 -455 -457 0 +-218 217 219 0 +-218 -217 -219 0 +-211 228 231 0 +-231 230 232 0 +-231 -230 -232 0 +-228 227 229 0 +-228 -227 -229 0 +981 798 -214 0 +982 -798 214 0 +-210 982 981 0 +-211 210 212 0 +-211 -210 -212 0 +1007 798 -216 0 +1008 -798 216 0 +-212 1008 1007 0 +-462 652 655 0 +-655 654 656 0 +-655 -654 -656 0 +-652 651 653 0 +-652 -651 -653 0 +-462 461 463 0 +-462 -461 -463 0 +-582 615 618 0 +-618 617 619 0 +-618 -617 -619 0 +-615 614 616 0 +-615 -614 -616 0 +-582 581 583 0 +-582 -581 -583 0 +-589 646 649 0 +-649 648 650 0 +-649 -648 -650 0 +-646 645 647 0 +-646 -645 -647 0 +973 666 -639 0 +974 -666 639 0 +-588 974 973 0 +-589 588 590 0 +-589 -588 -590 0 +1009 666 -641 0 +1010 -666 641 0 +-590 1010 1009 0 +-334 -335 -303 0 +-334 -333 -305 0 +-334 -303 -305 0 +-334 -335 -318 0 +-334 -333 -320 0 +-334 -318 -320 0 +-334 -335 -123 0 +-334 -333 -125 0 +-334 -123 -125 0 +-304 -305 -333 0 +-304 -303 -335 0 +-304 -333 -335 0 +-304 -305 -318 0 +-304 -303 -320 0 +-304 -318 -320 0 +-304 -305 -123 0 +-304 -303 -125 0 +-304 -123 -125 0 +-319 -320 -333 0 +-319 -318 -335 0 +-319 -333 -335 0 +-319 -320 -303 0 +-319 -318 -305 0 +-319 -303 -305 0 +-319 -320 -123 0 +-319 -318 -125 0 +-319 -123 -125 0 +-124 -125 -333 0 +-124 -123 -335 0 +-124 -333 -335 0 +-124 -125 -303 0 +-124 -123 -305 0 +-124 -303 -305 0 +-124 -125 -318 0 +-124 -123 -320 0 +-124 -318 -320 0 +-109 108 110 0 +-109 -108 -110 0 +-519 518 520 0 +-519 -518 -520 0 +-337 336 338 0 +-337 -336 -338 0 +-334 333 335 0 +-334 -333 -335 0 +-118 117 119 0 +-118 -117 -119 0 +-59 528 531 0 +-531 530 532 0 +-531 -530 -532 0 +-528 527 529 0 +-528 -527 -529 0 +983 67 -204 0 +984 -67 204 0 +-58 984 983 0 +-59 58 60 0 +-59 -58 -60 0 +1011 67 -206 0 +1012 -67 206 0 +-60 1012 1011 0 +-313 312 314 0 +-313 -312 -314 0 +-307 306 308 0 +-307 -306 -308 0 +-304 303 305 0 +-304 -303 -305 0 +-115 114 116 0 +-115 -114 -116 0 +-688 692 695 0 +-695 694 696 0 +-695 -694 -696 0 +-692 691 693 0 +-692 -691 -693 0 +965 837 -838 0 +966 -837 838 0 +-687 966 965 0 +-688 687 689 0 +-688 -687 -689 0 +1013 837 -840 0 +1014 -837 840 0 +-689 1014 1013 0 +-112 319 322 0 +-322 321 323 0 +-322 -321 -323 0 +-319 318 320 0 +-319 -318 -320 0 +-112 111 113 0 +-112 -111 -113 0 +-284 843 846 0 +-846 845 847 0 +-846 -845 -847 0 +-843 842 844 0 +-843 -842 -844 0 +977 287 -288 0 +978 -287 288 0 +-283 978 977 0 +-284 283 285 0 +-284 -283 -285 0 +1015 287 -290 0 +1016 -287 290 0 +-285 1016 1015 0 +-85 121 124 0 +-124 123 125 0 +-124 -123 -125 0 +-121 120 122 0 +-121 -120 -122 0 +-85 84 86 0 +-85 -84 -86 0 +-704 713 716 0 +-716 715 717 0 +-716 -715 -717 0 +-713 712 714 0 +-713 -712 -714 0 +971 707 -708 0 +972 -707 708 0 +-703 972 971 0 +-704 703 705 0 +-704 -703 -705 0 +1017 707 -710 0 +1018 -707 710 0 +-705 1018 1017 0 +1020 45 -43 0 +1021 -45 43 0 +-1019 1021 1020 0 +-44 43 45 0 +-44 -43 -45 0 +-625 624 626 0 +-625 -624 -626 0 +-562 561 563 0 +-562 -561 -563 0 +-559 558 560 0 +-559 -558 -560 0 +-248 247 249 0 +-248 -247 -249 0 +-929 928 930 0 +-929 -928 -930 0 +-895 894 896 0 +-895 -894 -896 0 +-872 871 873 0 +-872 -871 -873 0 +-750 749 751 0 +-750 -749 -751 0 +-724 723 725 0 +-724 -723 -725 0 +-578 577 579 0 +-578 -577 -579 0 +-475 474 476 0 +-475 -474 -476 0 +-472 471 473 0 +-472 -471 -473 0 +-91 -92 107 0 +-91 -90 105 0 +-91 105 107 0 +-91 -92 77 0 +-91 -90 75 0 +-91 75 77 0 +-106 -107 92 0 +-106 -105 90 0 +-106 90 92 0 +-106 -107 77 0 +-106 -105 75 0 +-106 75 77 0 +-76 -77 92 0 +-76 -75 90 0 +-76 90 92 0 +-76 -77 107 0 +-76 -75 105 0 +-76 105 107 0 +-103 102 104 0 +-103 -102 -104 0 +-96 -93 -90 0 +99 93 90 0 +99 96 90 0 +-97 -98 95 0 +-97 -96 93 0 +-97 93 95 0 +-94 -95 98 0 +-94 -93 96 0 +-94 96 98 0 +-97 -98 -99 0 +-97 -96 -101 0 +-97 -99 -101 0 +-94 -95 -99 0 +-94 -93 -101 0 +-94 -99 -101 0 +-91 90 92 0 +-91 -90 -92 0 +-98 -95 -92 0 +101 95 92 0 +101 98 92 0 +-327 -515 -99 0 +-525 -526 -527 0 +-525 -524 -529 0 +-525 -527 -529 0 +-328 -329 517 0 +-328 -327 515 0 +-328 515 517 0 +-516 -517 329 0 +-516 -515 327 0 +-516 327 329 0 +-328 -329 -527 0 +-328 -327 -529 0 +-328 -527 -529 0 +-516 -517 -527 0 +-516 -515 -529 0 +-516 -527 -529 0 +-100 99 101 0 +-100 -99 -101 0 +-329 -517 -101 0 +-524 -564 -537 0 +-328 327 329 0 +-328 -327 -329 0 +330 336 339 0 +-340 -341 -336 0 +-340 -339 -338 0 +-340 -336 -338 0 +-337 -338 -339 0 +-337 -336 -341 0 +-337 -339 -341 0 +-331 330 332 0 +-331 -330 -332 0 +332 338 341 0 +-515 -518 -521 0 +-522 -523 520 0 +-522 -521 518 0 +-522 518 520 0 +-519 -520 523 0 +-519 -518 521 0 +-519 521 523 0 +-516 515 517 0 +-516 -515 -517 0 +-517 -520 -523 0 +-97 96 98 0 +-97 -96 -98 0 +324 321 93 0 +-324 -321 93 0 +-324 321 -93 0 +324 -321 -93 0 +-94 93 95 0 +-94 -93 -95 0 +326 323 95 0 +-326 -323 95 0 +-326 323 -95 0 +326 -323 -95 0 +-245 -246 -221 0 +-245 -244 -223 0 +-245 -221 -223 0 +-245 -246 -241 0 +-245 -244 -243 0 +-245 -241 -243 0 +-222 -223 -244 0 +-222 -221 -246 0 +-222 -244 -246 0 +-222 -223 -241 0 +-222 -221 -243 0 +-222 -241 -243 0 +-242 -243 -244 0 +-242 -241 -246 0 +-242 -244 -246 0 +-242 -243 -221 0 +-242 -241 -223 0 +-242 -221 -223 0 +-106 105 107 0 +-106 -105 -107 0 +-803 -784 -244 0 +-803 -809 -244 0 +-803 -800 -244 0 +-801 -802 -809 0 +-801 -800 -811 0 +-801 -809 -811 0 +-801 -802 -784 0 +-801 -800 -786 0 +-801 -784 -786 0 +-810 -811 -784 0 +-810 -809 -786 0 +-810 -784 -786 0 +-785 -786 -809 0 +-785 -784 -811 0 +-785 -809 -811 0 +-801 -802 805 0 +-801 -800 803 0 +-801 803 805 0 +-810 -811 805 0 +-810 -809 803 0 +-810 803 805 0 +-785 -786 805 0 +-785 -784 803 0 +-785 803 805 0 +-245 244 246 0 +-245 -244 -246 0 +-805 -786 -246 0 +-805 -811 -246 0 +-805 -800 -246 0 +818 670 803 0 +-833 -670 -803 0 +-833 -818 -803 0 +-819 -820 -670 0 +-819 -818 -672 0 +-819 -670 -672 0 +-671 -672 -818 0 +-671 -670 -820 0 +-671 -818 -820 0 +-819 -820 835 0 +-819 -818 833 0 +-819 833 835 0 +-671 -672 835 0 +-671 -670 833 0 +-671 833 835 0 +-804 803 805 0 +-804 -803 -805 0 +820 672 805 0 +-835 -672 -805 0 +-835 -820 -805 0 +-834 833 835 0 +-834 -833 -835 0 +818 821 824 0 +-825 -826 -821 0 +-825 -824 -823 0 +-825 -821 -823 0 +-822 -823 -824 0 +-822 -821 -826 0 +-822 -824 -826 0 +-819 818 820 0 +-819 -818 -820 0 +820 823 826 0 +670 673 676 0 +-677 -678 -673 0 +-677 -676 -675 0 +-677 -673 -675 0 +-674 -675 -676 0 +-674 -673 -678 0 +-674 -676 -678 0 +-671 670 672 0 +-671 -670 -672 0 +672 675 678 0 +-674 673 675 0 +-674 -673 -675 0 +-800 -904 -909 0 +967 790 -793 0 +968 -790 793 0 +-784 968 967 0 +-785 784 786 0 +-785 -784 -786 0 +1023 792 -795 0 +1024 -792 795 0 +-786 1024 1023 0 +-231 -232 -224 0 +-231 -230 -226 0 +-231 -224 -226 0 +-225 -226 -230 0 +-225 -224 -232 0 +-225 -230 -232 0 +-222 221 223 0 +-222 -221 -223 0 +979 455 -238 0 +980 -455 238 0 +-224 980 979 0 +-225 224 226 0 +-225 -224 -226 0 +1025 457 -240 0 +1026 -457 240 0 +-226 1026 1025 0 +-242 241 243 0 +-242 -241 -243 0 +-277 -265 -274 0 +280 265 274 0 +280 277 274 0 +-278 -279 267 0 +-278 -277 265 0 +-278 265 267 0 +-266 -267 279 0 +-266 -265 277 0 +-266 277 279 0 +-278 -279 -280 0 +-278 -277 -282 0 +-278 -280 -282 0 +-266 -267 -280 0 +-266 -265 -282 0 +-266 -280 -282 0 +-275 274 276 0 +-275 -274 -276 0 +-279 -267 -276 0 +282 267 276 0 +282 279 276 0 +-642 -611 -280 0 +-632 -633 -648 0 +-632 -631 -650 0 +-632 -648 -650 0 +-643 -644 613 0 +-643 -642 611 0 +-643 611 613 0 +-612 -613 644 0 +-612 -611 642 0 +-612 642 644 0 +-643 -644 -648 0 +-643 -642 -650 0 +-643 -648 -650 0 +-612 -613 -648 0 +-612 -611 -650 0 +-612 -648 -650 0 +-281 280 282 0 +-281 -280 -282 0 +-644 -613 -282 0 +-631 -637 -638 0 +-642 -654 -660 0 +-661 -662 656 0 +-661 -660 654 0 +-661 654 656 0 +-655 -656 662 0 +-655 -654 660 0 +-655 660 662 0 +-643 642 644 0 +-643 -642 -644 0 +-644 -656 -662 0 +-611 -617 -620 0 +-621 -622 619 0 +-621 -620 617 0 +-621 617 619 0 +-618 -619 622 0 +-618 -617 620 0 +-618 620 622 0 +-612 611 613 0 +-612 -611 -613 0 +-613 -619 -622 0 +-278 277 279 0 +-278 -277 -279 0 +271 477 265 0 +-271 -477 265 0 +-271 477 -265 0 +271 -477 -265 0 +-266 265 267 0 +-266 -265 -267 0 +273 479 267 0 +-273 -479 267 0 +-273 479 -267 0 +273 -479 -267 0 +-81 -78 -75 0 +69 78 75 0 +69 81 75 0 +-82 -83 80 0 +-82 -81 78 0 +-82 78 80 0 +-79 -80 83 0 +-79 -78 81 0 +-79 81 83 0 +-82 -83 -69 0 +-82 -81 -71 0 +-82 -69 -71 0 +-79 -80 -69 0 +-79 -78 -71 0 +-79 -69 -71 0 +-76 75 77 0 +-76 -75 -77 0 +-83 -80 -77 0 +71 80 77 0 +71 83 77 0 +-70 69 71 0 +-70 -69 -71 0 +294 291 72 0 +-297 -291 -72 0 +-297 -294 -72 0 +-295 -296 -291 0 +-295 -294 -293 0 +-295 -291 -293 0 +-292 -293 -294 0 +-292 -291 -296 0 +-292 -294 -296 0 +-295 -296 299 0 +-295 -294 297 0 +-295 297 299 0 +-292 -293 299 0 +-292 -291 297 0 +-292 297 299 0 +-73 72 74 0 +-73 -72 -74 0 +296 293 74 0 +-299 -293 -74 0 +-299 -296 -74 0 +-298 297 299 0 +-298 -297 -299 0 +294 312 315 0 +-316 -317 -312 0 +-316 -315 -314 0 +-316 -312 -314 0 +-313 -314 -315 0 +-313 -312 -317 0 +-313 -315 -317 0 +-295 294 296 0 +-295 -294 -296 0 +296 314 317 0 +-292 291 293 0 +-292 -291 -293 0 +-300 -306 -309 0 +-310 -311 308 0 +-310 -309 306 0 +-310 306 308 0 +-307 -308 311 0 +-307 -306 309 0 +-307 309 311 0 +-301 300 302 0 +-301 -300 -302 0 +-302 -308 -311 0 +-82 81 83 0 +-82 -81 -83 0 +235 120 78 0 +-235 -120 78 0 +-235 120 -78 0 +235 -120 -78 0 +-79 78 80 0 +-79 -78 -80 0 +237 122 80 0 +-237 -122 80 0 +-237 122 -80 0 +237 -122 -80 0 +1028 57 -55 0 +1029 -57 55 0 +-1027 1029 1028 0 +55 198 174 0 +-175 -176 -198 0 +-175 -174 -200 0 +-175 -198 -200 0 +-199 -200 -174 0 +-199 -198 -176 0 +-199 -174 -176 0 +-56 55 57 0 +-56 -55 -57 0 +57 200 176 0 +-376 -377 -183 0 +-376 -375 -185 0 +-376 -183 -185 0 +-376 -377 -180 0 +-376 -375 -182 0 +-376 -180 -182 0 +-376 -377 -189 0 +-376 -375 -191 0 +-376 -189 -191 0 +-184 -185 -375 0 +-184 -183 -377 0 +-184 -375 -377 0 +-184 -185 -180 0 +-184 -183 -182 0 +-184 -180 -182 0 +-184 -185 -189 0 +-184 -183 -191 0 +-184 -189 -191 0 +-181 -182 -375 0 +-181 -180 -377 0 +-181 -375 -377 0 +-181 -182 -183 0 +-181 -180 -185 0 +-181 -183 -185 0 +-181 -182 -189 0 +-181 -180 -191 0 +-181 -189 -191 0 +-190 -191 -375 0 +-190 -189 -377 0 +-190 -375 -377 0 +-190 -191 -183 0 +-190 -189 -185 0 +-190 -183 -185 0 +-190 -191 -180 0 +-190 -189 -182 0 +-190 -180 -182 0 +-175 174 176 0 +-175 -174 -176 0 +-397 396 398 0 +-397 -396 -398 0 +-379 378 380 0 +-379 -378 -380 0 +-376 375 377 0 +-376 -375 -377 0 +-753 -749 -186 0 +-757 -758 -746 0 +-757 -756 -748 0 +-757 -746 -748 0 +-754 -755 751 0 +-754 -753 749 0 +-754 749 751 0 +-754 -755 -746 0 +-754 -753 -748 0 +-754 -746 -748 0 +-750 -751 -746 0 +-750 -749 -748 0 +-750 -746 -748 0 +-187 186 188 0 +-187 -186 -188 0 +-753 -751 -188 0 +-747 746 748 0 +-747 -746 -748 0 +-886 -762 -759 0 +-769 -765 -759 0 +765 762 759 0 +769 762 759 0 +765 886 759 0 +769 886 759 0 +-770 -771 767 0 +-770 -769 765 0 +-770 765 767 0 +-887 -888 764 0 +-887 -886 762 0 +-887 762 764 0 +-760 759 761 0 +-760 -759 -761 0 +-886 -764 -761 0 +-769 -767 -761 0 +767 764 761 0 +769 764 761 0 +767 886 761 0 +769 886 761 0 +-183 -571 -574 0 +-575 -576 573 0 +-575 -574 571 0 +-575 571 573 0 +-572 -573 576 0 +-572 -571 574 0 +-572 574 576 0 +-184 183 185 0 +-184 -183 -185 0 +-185 -573 -576 0 +-575 574 576 0 +-575 -574 -576 0 +-364 363 365 0 +-364 -363 -365 0 +-358 357 359 0 +-358 -357 -359 0 +-355 354 356 0 +-355 -354 -356 0 +-139 138 140 0 +-139 -138 -140 0 +-858 -854 -538 0 +-865 -861 -538 0 +-866 -867 863 0 +-866 -865 861 0 +-866 861 863 0 +-859 -860 856 0 +-859 -858 854 0 +-859 854 856 0 +-866 -867 -851 0 +-866 -865 -853 0 +-866 -851 -853 0 +-862 -863 -851 0 +-862 -861 -853 0 +-862 -851 -853 0 +-859 -860 -851 0 +-859 -858 -853 0 +-859 -851 -853 0 +-855 -856 -851 0 +-855 -854 -853 0 +-855 -851 -853 0 +-539 538 540 0 +-539 -538 -540 0 +-858 -856 -540 0 +-865 -863 -540 0 +-852 851 853 0 +-852 -851 -853 0 +-875 -871 -868 0 +878 871 868 0 +878 875 868 0 +-876 -877 873 0 +-876 -875 871 0 +-876 871 873 0 +-869 868 870 0 +-869 -868 -870 0 +-875 -873 -870 0 +878 873 870 0 +878 875 870 0 +-572 571 573 0 +-572 -571 -573 0 +-403 402 404 0 +-403 -402 -404 0 +-382 381 383 0 +-382 -381 -383 0 +-370 369 371 0 +-370 -369 -371 0 +-367 366 368 0 +-367 -366 -368 0 +-348 -733 -720 0 +-721 -722 735 0 +-721 -720 733 0 +-721 733 735 0 +-734 -735 722 0 +-734 -733 720 0 +-734 720 722 0 +-349 348 350 0 +-349 -348 -350 0 +-350 -735 -722 0 +-727 -723 -720 0 +730 723 720 0 +730 727 720 0 +-728 -729 725 0 +-728 -727 723 0 +-728 723 725 0 +-721 720 722 0 +-721 -720 -722 0 +-727 -725 -722 0 +730 725 722 0 +730 727 722 0 +-881 -736 -733 0 +-743 -739 -733 0 +739 736 733 0 +743 736 733 0 +739 881 733 0 +743 881 733 0 +-744 -745 741 0 +-744 -743 739 0 +-744 739 741 0 +-882 -883 738 0 +-882 -881 736 0 +-882 736 738 0 +-734 733 735 0 +-734 -733 -735 0 +-881 -738 -735 0 +-743 -741 -735 0 +741 738 735 0 +743 738 735 0 +741 881 735 0 +743 881 735 0 +-406 -407 386 0 +-406 -405 384 0 +-406 384 386 0 +-406 -407 395 0 +-406 -405 393 0 +-406 393 395 0 +-385 -386 407 0 +-385 -384 405 0 +-385 405 407 0 +-385 -386 395 0 +-385 -384 393 0 +-385 393 395 0 +-394 -395 407 0 +-394 -393 405 0 +-394 405 407 0 +-394 -395 386 0 +-394 -393 384 0 +-394 384 386 0 +-181 180 182 0 +-181 -180 -182 0 +-388 406 409 0 +-409 408 410 0 +-409 -408 -410 0 +-406 405 407 0 +-406 -405 -407 0 +-388 387 389 0 +-388 -387 -389 0 +-361 412 415 0 +-415 414 416 0 +-415 -414 -416 0 +-412 411 413 0 +-412 -411 -413 0 +-601 -597 -360 0 +-608 -604 -360 0 +-609 -610 606 0 +-609 -608 604 0 +-609 604 606 0 +-602 -603 599 0 +-602 -601 597 0 +-602 597 599 0 +-609 -610 -594 0 +-609 -608 -596 0 +-609 -594 -596 0 +-605 -606 -594 0 +-605 -604 -596 0 +-605 -594 -596 0 +-602 -603 -594 0 +-602 -601 -596 0 +-602 -594 -596 0 +-598 -599 -594 0 +-598 -597 -596 0 +-598 -594 -596 0 +-361 360 362 0 +-361 -360 -362 0 +-601 -599 -362 0 +-608 -606 -362 0 +634 624 594 0 +-628 -624 -594 0 +-628 -634 -594 0 +-635 -636 -624 0 +-635 -634 -626 0 +-635 -624 -626 0 +-595 594 596 0 +-595 -594 -596 0 +634 626 596 0 +-628 -626 -596 0 +-628 -634 -596 0 +-417 -427 -384 0 +433 427 384 0 +433 417 384 0 +-418 -419 429 0 +-418 -417 427 0 +-418 427 429 0 +-428 -429 419 0 +-428 -427 417 0 +-428 417 419 0 +-418 -419 -433 0 +-418 -417 -435 0 +-418 -433 -435 0 +-428 -429 -433 0 +-428 -427 -435 0 +-428 -433 -435 0 +-385 384 386 0 +-385 -384 -386 0 +-419 -429 -386 0 +435 429 386 0 +435 419 386 0 +-254 431 434 0 +-434 433 435 0 +-434 -433 -435 0 +-431 430 432 0 +-431 -430 -432 0 +-509 -259 -253 0 +-486 -262 -253 0 +-487 -488 264 0 +-487 -486 262 0 +-487 262 264 0 +-510 -511 261 0 +-510 -509 259 0 +-510 259 261 0 +-487 -488 -256 0 +-487 -486 -258 0 +-487 -256 -258 0 +-263 -264 -256 0 +-263 -262 -258 0 +-263 -256 -258 0 +-510 -511 -256 0 +-510 -509 -258 0 +-510 -256 -258 0 +-260 -261 -256 0 +-260 -259 -258 0 +-260 -256 -258 0 +-254 253 255 0 +-254 -253 -255 0 +-509 -261 -255 0 +-486 -264 -255 0 +-257 256 258 0 +-257 -256 -258 0 +-504 -474 -467 0 +490 474 467 0 +490 504 467 0 +-505 -506 476 0 +-505 -504 474 0 +-505 474 476 0 +-468 467 469 0 +-468 -467 -469 0 +-504 -476 -469 0 +490 476 469 0 +490 504 469 0 +-421 -471 -417 0 +424 471 417 0 +424 421 417 0 +-422 -423 473 0 +-422 -421 471 0 +-422 471 473 0 +-418 417 419 0 +-418 -417 -419 0 +-421 -473 -419 0 +424 473 419 0 +424 421 419 0 +-772 -436 -427 0 +-443 -439 -427 0 +439 436 427 0 +443 436 427 0 +439 772 427 0 +443 772 427 0 +-444 -445 441 0 +-444 -443 439 0 +-444 439 441 0 +-773 -774 438 0 +-773 -772 436 0 +-773 436 438 0 +-428 427 429 0 +-428 -427 -429 0 +-772 -438 -429 0 +-443 -441 -429 0 +441 438 429 0 +443 438 429 0 +441 772 429 0 +443 772 429 0 +-346 391 394 0 +-394 393 395 0 +-394 -393 -395 0 +-391 390 392 0 +-391 -390 -392 0 +565 561 345 0 +-569 -570 543 0 +-569 -568 541 0 +-569 541 543 0 +-566 -567 -561 0 +-566 -565 -563 0 +-566 -561 -563 0 +-566 -567 543 0 +-566 -565 541 0 +-566 541 543 0 +-562 -563 543 0 +-562 -561 541 0 +-562 541 543 0 +-346 345 347 0 +-346 -345 -347 0 +565 563 347 0 +-548 -544 -541 0 +-555 -551 -541 0 +551 544 541 0 +555 544 541 0 +551 548 541 0 +555 548 541 0 +-556 -557 553 0 +-556 -555 551 0 +-556 551 553 0 +-549 -550 546 0 +-549 -548 544 0 +-549 544 546 0 +-542 541 543 0 +-542 -541 -543 0 +-548 -546 -543 0 +-555 -553 -543 0 +553 546 543 0 +555 546 543 0 +553 548 543 0 +555 548 543 0 +-178 190 193 0 +-193 192 194 0 +-193 -192 -194 0 +-190 189 191 0 +-190 -189 -191 0 +-942 -827 -177 0 +-934 -830 -177 0 +-935 -936 832 0 +-935 -934 830 0 +-935 830 832 0 +-943 -944 829 0 +-943 -942 827 0 +-943 827 829 0 +-935 -936 -812 0 +-935 -934 -814 0 +-935 -812 -814 0 +-831 -832 -812 0 +-831 -830 -814 0 +-831 -812 -814 0 +-943 -944 -812 0 +-943 -942 -814 0 +-943 -812 -814 0 +-828 -829 -812 0 +-828 -827 -814 0 +-828 -812 -814 0 +-178 177 179 0 +-178 -177 -179 0 +-942 -829 -179 0 +-934 -832 -179 0 +-813 812 814 0 +-813 -812 -814 0 +-958 -928 -815 0 +938 928 815 0 +938 958 815 0 +-959 -960 930 0 +-959 -958 928 0 +-959 928 930 0 +-816 815 817 0 +-816 -815 -817 0 +-958 -930 -817 0 +938 930 817 0 +938 958 817 0 +-914 -921 -198 0 +-919 -920 -911 0 +-919 -918 -913 0 +-919 -911 -913 0 +-922 -923 916 0 +-922 -921 914 0 +-922 914 916 0 +-915 -916 -911 0 +-915 -914 -913 0 +-915 -911 -913 0 +-922 -923 -911 0 +-922 -921 -913 0 +-922 -911 -913 0 +-199 198 200 0 +-199 -198 -200 0 +-916 -921 -200 0 +-912 911 913 0 +-912 -911 -913 0 +-894 -905 -891 0 +-901 -898 -891 0 +898 905 891 0 +901 905 891 0 +898 894 891 0 +901 894 891 0 +-899 -900 903 0 +-899 -898 901 0 +-899 901 903 0 +-906 -907 896 0 +-906 -905 894 0 +-906 894 896 0 +-892 891 893 0 +-892 -891 -893 0 +-896 -905 -893 0 +-903 -898 -893 0 +898 905 893 0 +903 905 893 0 +898 896 893 0 +903 896 893 0 +1031 51 -49 0 +1032 -51 49 0 +-1030 1032 1031 0 +-145 -146 134 0 +-145 -144 132 0 +-145 132 134 0 +-145 -146 161 0 +-145 -144 159 0 +-145 159 161 0 +-145 -146 152 0 +-145 -144 150 0 +-145 150 152 0 +-133 -134 146 0 +-133 -132 144 0 +-133 144 146 0 +-133 -134 161 0 +-133 -132 159 0 +-133 159 161 0 +-133 -134 152 0 +-133 -132 150 0 +-133 150 152 0 +-160 -161 146 0 +-160 -159 144 0 +-160 144 146 0 +-160 -161 134 0 +-160 -159 132 0 +-160 132 134 0 +-160 -161 152 0 +-160 -159 150 0 +-160 150 152 0 +-151 -152 146 0 +-151 -150 144 0 +-151 144 146 0 +-151 -152 134 0 +-151 -150 132 0 +-151 132 134 0 +-151 -152 161 0 +-151 -150 159 0 +-151 159 161 0 +-50 49 51 0 +-50 -49 -51 0 +-400 399 401 0 +-400 -399 -401 0 +-352 351 353 0 +-352 -351 -353 0 +-148 147 149 0 +-148 -147 -149 0 +-145 144 146 0 +-145 -144 -146 0 +-136 135 137 0 +-136 -135 -137 0 +-370 -371 413 0 +-370 -369 411 0 +-370 411 413 0 +-370 -371 365 0 +-370 -369 363 0 +-370 363 365 0 +-412 -413 371 0 +-412 -411 369 0 +-412 369 371 0 +-412 -413 365 0 +-412 -411 363 0 +-412 363 365 0 +-364 -365 371 0 +-364 -363 369 0 +-364 369 371 0 +-364 -365 413 0 +-364 -363 411 0 +-364 411 413 0 +-133 132 134 0 +-133 -132 -134 0 +-130 160 163 0 +-163 162 164 0 +-163 -162 -164 0 +-160 159 161 0 +-160 -159 -161 0 +-343 -344 368 0 +-343 -342 366 0 +-343 366 368 0 +-343 -344 359 0 +-343 -342 357 0 +-343 357 359 0 +-343 -344 353 0 +-343 -342 351 0 +-343 351 353 0 +-367 -368 344 0 +-367 -366 342 0 +-367 342 344 0 +-367 -368 359 0 +-367 -366 357 0 +-367 357 359 0 +-367 -368 353 0 +-367 -366 351 0 +-367 351 353 0 +-358 -359 344 0 +-358 -357 342 0 +-358 342 344 0 +-358 -359 368 0 +-358 -357 366 0 +-358 366 368 0 +-358 -359 353 0 +-358 -357 351 0 +-358 351 353 0 +-352 -353 344 0 +-352 -351 342 0 +-352 342 344 0 +-352 -353 368 0 +-352 -351 366 0 +-352 366 368 0 +-352 -353 359 0 +-352 -351 357 0 +-352 357 359 0 +-130 129 131 0 +-130 -129 -131 0 +-343 342 344 0 +-343 -342 -344 0 +-172 171 173 0 +-172 -171 -173 0 +-154 153 155 0 +-154 -153 -155 0 +-151 150 152 0 +-151 -150 -152 0 +-127 126 128 0 +-127 -126 -128 0 +1034 48 -46 0 +1035 -48 46 0 +-1033 1035 1034 0 +-154 -155 149 0 +-154 -153 147 0 +-154 147 149 0 +-154 -155 167 0 +-154 -153 165 0 +-154 165 167 0 +-154 -155 356 0 +-154 -153 354 0 +-154 354 356 0 +-148 -149 155 0 +-148 -147 153 0 +-148 153 155 0 +-148 -149 167 0 +-148 -147 165 0 +-148 165 167 0 +-148 -149 356 0 +-148 -147 354 0 +-148 354 356 0 +-166 -167 155 0 +-166 -165 153 0 +-166 153 155 0 +-166 -167 149 0 +-166 -165 147 0 +-166 147 149 0 +-166 -167 356 0 +-166 -165 354 0 +-166 354 356 0 +-355 -356 155 0 +-355 -354 153 0 +-355 153 155 0 +-355 -356 149 0 +-355 -354 147 0 +-355 147 149 0 +-355 -356 167 0 +-355 -354 165 0 +-355 165 167 0 +-47 46 48 0 +-47 -46 -48 0 +-142 166 169 0 +-169 168 170 0 +-169 -168 -170 0 +-166 165 167 0 +-166 -165 -167 0 +-142 141 143 0 +-142 -141 -143 0 +372 378 381 0 +-382 -383 -378 0 +-382 -381 -380 0 +-382 -378 -380 0 +-379 -380 -381 0 +-379 -378 -383 0 +-379 -381 -383 0 +-373 372 374 0 +-373 -372 -374 0 +374 380 383 0 +1037 54 -52 0 +1038 -54 52 0 +-1036 1038 1037 0 +-172 -173 158 0 +-172 -171 156 0 +-172 156 158 0 +-172 -173 170 0 +-172 -171 168 0 +-172 168 170 0 +-172 -173 164 0 +-172 -171 162 0 +-172 162 164 0 +-157 -158 173 0 +-157 -156 171 0 +-157 171 173 0 +-157 -158 170 0 +-157 -156 168 0 +-157 168 170 0 +-157 -158 164 0 +-157 -156 162 0 +-157 162 164 0 +-169 -170 173 0 +-169 -168 171 0 +-169 171 173 0 +-169 -170 158 0 +-169 -168 156 0 +-169 156 158 0 +-169 -170 164 0 +-169 -168 162 0 +-169 162 164 0 +-163 -164 173 0 +-163 -162 171 0 +-163 171 173 0 +-163 -164 158 0 +-163 -162 156 0 +-163 156 158 0 +-163 -164 170 0 +-163 -162 168 0 +-163 168 170 0 +-53 52 54 0 +-53 -52 -54 0 +-409 -410 404 0 +-409 -408 402 0 +-409 402 404 0 +-409 -410 432 0 +-409 -408 430 0 +-409 430 432 0 +-409 -410 401 0 +-409 -408 399 0 +-409 399 401 0 +-403 -404 410 0 +-403 -402 408 0 +-403 408 410 0 +-403 -404 432 0 +-403 -402 430 0 +-403 430 432 0 +-403 -404 401 0 +-403 -402 399 0 +-403 399 401 0 +-431 -432 410 0 +-431 -430 408 0 +-431 408 410 0 +-431 -432 404 0 +-431 -430 402 0 +-431 402 404 0 +-431 -432 401 0 +-431 -430 399 0 +-431 399 401 0 +-400 -401 410 0 +-400 -399 408 0 +-400 408 410 0 +-400 -401 404 0 +-400 -399 402 0 +-400 402 404 0 +-400 -401 432 0 +-400 -399 430 0 +-400 430 432 0 +-157 156 158 0 +-157 -156 -158 0 +669 665 667 706 0 +-993 855 915 950 0 +663 667 665 669 0 +-665 -796 -781 -797 0 +-196 658 661 677 0 +268 498 489 493 0 +270 500 489 493 0 +446 458 787 679 0 +448 460 789 681 0 +-453 680 683 822 0 +452 952 937 941 0 +454 954 937 941 0 +449 806 897 917 0 +451 808 897 917 0 +217 227 442 233 0 +219 229 442 233 0 +581 645 607 592 0 +583 647 607 592 0 +-118 334 337 519 0 +117 530 554 534 0 +119 532 554 534 0 +-115 304 307 313 0 +114 694 742 698 0 +116 696 742 698 0 +111 842 864 848 0 +113 844 864 848 0 +84 712 768 718 0 +86 714 768 718 0 +-248 559 562 625 0 +-102 -75 -105 -90 0 +-104 -77 -107 -92 0 +-100 99 -96 -93 0 +-100 101 -98 -95 0 +524 527 515 99 0 +524 527 327 99 0 +-525 524 -327 -515 0 +-525 526 -329 -517 0 +-528 527 -327 -515 0 +-528 529 -329 -517 0 +524 529 517 101 0 +524 529 329 101 0 +96 845 874 849 0 +98 847 874 849 0 +105 241 221 244 0 +107 243 223 246 0 +800 809 784 244 0 +800 811 786 246 0 +-834 -833 818 670 0 +-834 -835 820 672 0 +833 955 961 962 0 +835 957 961 962 0 +-281 280 -277 -265 0 +-281 282 -279 -267 0 +631 648 611 280 0 +631 648 642 280 0 +-632 631 -642 -611 0 +-632 633 -644 -613 0 +-649 648 -642 -611 0 +-649 650 -644 -613 0 +631 650 613 282 0 +631 650 644 282 0 +277 501 507 508 0 +279 503 507 508 0 +-70 69 -81 -78 0 +-70 71 -83 -80 0 +-298 -297 294 291 0 +-298 -299 296 293 0 +297 691 726 697 0 +299 693 726 697 0 +81 715 752 719 0 +83 717 752 719 0 +-187 376 379 397 0 +746 756 749 186 0 +746 756 753 186 0 +-747 -753 -748 -749 0 +-747 -753 -746 -751 0 +-747 -753 -749 -751 0 +-757 -753 -758 -749 0 +-757 -753 -756 -751 0 +-757 -753 -749 -751 0 +748 756 751 188 0 +748 756 753 188 0 +-770 -886 -771 -762 0 +-770 -886 -769 -764 0 +-770 -886 -762 -764 0 +-766 -886 -767 -762 0 +-766 -886 -765 -764 0 +-766 -886 -762 -764 0 +-887 -769 -888 -765 0 +-887 -769 -886 -767 0 +-887 -769 -765 -767 0 +-763 -769 -764 -765 0 +-763 -769 -762 -767 0 +-763 -769 -765 -767 0 +851 861 854 538 0 +851 865 854 538 0 +851 861 858 538 0 +851 865 858 538 0 +-852 -865 -853 -861 0 +-852 -865 -851 -863 0 +-852 -865 -861 -863 0 +-852 -858 -853 -854 0 +-852 -858 -851 -856 0 +-852 -858 -854 -856 0 +-866 -858 -867 -854 0 +-866 -858 -865 -856 0 +-866 -858 -854 -856 0 +-862 -858 -863 -854 0 +-862 -858 -861 -856 0 +-862 -858 -854 -856 0 +-859 -865 -860 -861 0 +-859 -865 -858 -863 0 +-859 -865 -861 -863 0 +-855 -865 -856 -861 0 +-855 -865 -854 -863 0 +-855 -865 -861 -863 0 +853 863 856 540 0 +853 865 856 540 0 +853 863 858 540 0 +853 865 858 540 0 +-879 -875 -880 -871 0 +-879 -875 -878 -873 0 +-879 -875 -871 -873 0 +-731 -727 -732 -723 0 +-731 -727 -730 -725 0 +-731 -727 -723 -725 0 +-744 -881 -745 -736 0 +-744 -881 -743 -738 0 +-744 -881 -736 -738 0 +-740 -881 -741 -736 0 +-740 -881 -739 -738 0 +-740 -881 -736 -738 0 +-882 -743 -883 -739 0 +-882 -743 -881 -741 0 +-882 -743 -739 -741 0 +-737 -743 -738 -739 0 +-737 -743 -736 -741 0 +-737 -743 -739 -741 0 +-180 -393 -384 -405 0 +-182 -395 -386 -407 0 +594 604 597 360 0 +594 608 597 360 0 +594 604 601 360 0 +594 608 601 360 0 +-595 -608 -596 -604 0 +-595 -608 -594 -606 0 +-595 -608 -604 -606 0 +-595 -601 -596 -597 0 +-595 -601 -594 -599 0 +-595 -601 -597 -599 0 +-609 -601 -610 -597 0 +-609 -601 -608 -599 0 +-609 -601 -597 -599 0 +-605 -601 -606 -597 0 +-605 -601 -604 -599 0 +-605 -601 -597 -599 0 +-602 -608 -603 -604 0 +-602 -608 -601 -606 0 +-602 -608 -604 -606 0 +-598 -608 -599 -604 0 +-598 -608 -597 -606 0 +-598 -608 -604 -606 0 +596 606 599 362 0 +596 608 599 362 0 +596 606 601 362 0 +596 608 601 362 0 +-629 634 -630 626 0 +-629 634 -628 624 0 +-629 634 624 626 0 +-434 433 -417 -427 0 +-434 435 -419 -429 0 +256 262 259 253 0 +256 486 259 253 0 +256 262 509 253 0 +256 486 509 253 0 +-257 -486 -258 -262 0 +-257 -486 -256 -264 0 +-257 -486 -262 -264 0 +-257 -509 -258 -259 0 +-257 -509 -256 -261 0 +-257 -509 -259 -261 0 +-487 -509 -488 -259 0 +-487 -509 -486 -261 0 +-487 -509 -259 -261 0 +-263 -509 -264 -259 0 +-263 -509 -262 -261 0 +-263 -509 -259 -261 0 +-510 -486 -511 -262 0 +-510 -486 -509 -264 0 +-510 -486 -262 -264 0 +-260 -486 -261 -262 0 +-260 -486 -259 -264 0 +-260 -486 -262 -264 0 +258 264 261 255 0 +258 486 261 255 0 +258 264 509 255 0 +258 486 509 255 0 +-491 -504 -492 -474 0 +-491 -504 -490 -476 0 +-491 -504 -474 -476 0 +-425 -421 -426 -471 0 +-425 -421 -424 -473 0 +-425 -421 -471 -473 0 +-444 -772 -445 -436 0 +-444 -772 -443 -438 0 +-444 -772 -436 -438 0 +-440 -772 -441 -436 0 +-440 -772 -439 -438 0 +-440 -772 -436 -438 0 +-773 -443 -774 -439 0 +-773 -443 -772 -441 0 +-773 -443 -439 -441 0 +-437 -443 -438 -439 0 +-437 -443 -436 -441 0 +-437 -443 -439 -441 0 +-541 -568 -561 -345 0 +-541 -568 -565 -345 0 +-542 565 -543 563 0 +-542 565 -541 561 0 +-542 565 561 563 0 +-569 565 -570 563 0 +-569 565 -568 561 0 +-569 565 561 563 0 +-543 -568 -563 -347 0 +-543 -568 -565 -347 0 +-556 -548 -557 -544 0 +-556 -548 -555 -546 0 +-556 -548 -544 -546 0 +-552 -548 -553 -544 0 +-552 -548 -551 -546 0 +-552 -548 -544 -546 0 +-549 -555 -550 -551 0 +-549 -555 -548 -553 0 +-549 -555 -551 -553 0 +-545 -555 -546 -551 0 +-545 -555 -544 -553 0 +-545 -555 -551 -553 0 +812 830 827 177 0 +812 934 827 177 0 +812 830 942 177 0 +812 934 942 177 0 +-813 -934 -814 -830 0 +-813 -934 -812 -832 0 +-813 -934 -830 -832 0 +-813 -942 -814 -827 0 +-813 -942 -812 -829 0 +-813 -942 -827 -829 0 +-935 -942 -936 -827 0 +-935 -942 -934 -829 0 +-935 -942 -827 -829 0 +-831 -942 -832 -827 0 +-831 -942 -830 -829 0 +-831 -942 -827 -829 0 +-943 -934 -944 -830 0 +-943 -934 -942 -832 0 +-943 -934 -830 -832 0 +-828 -934 -829 -830 0 +-828 -934 -827 -832 0 +-828 -934 -830 -832 0 +814 832 829 179 0 +814 934 829 179 0 +814 832 942 179 0 +814 934 942 179 0 +-939 -958 -940 -928 0 +-939 -958 -938 -930 0 +-939 -958 -928 -930 0 +918 911 921 198 0 +918 911 914 198 0 +-919 -921 -920 -914 0 +-919 -921 -918 -916 0 +-919 -921 -914 -916 0 +-912 -921 -913 -914 0 +-912 -921 -911 -916 0 +-912 -921 -914 -916 0 +918 913 921 200 0 +918 913 916 200 0 +-902 -905 -903 -894 0 +-902 -905 -901 -896 0 +-902 -905 -894 -896 0 +-899 -905 -900 -894 0 +-899 -905 -898 -896 0 +-899 -905 -894 -896 0 +-895 -898 -896 -901 0 +-895 -898 -894 -903 0 +-895 -898 -901 -903 0 +-906 -898 -907 -901 0 +-906 -898 -905 -903 0 +-906 -898 -901 -903 0 +-132 -363 -411 -369 0 +-134 -365 -413 -371 0 +-127 151 154 172 0 +-1040 1019 994 987 0 +-62 -699 -663 -65 -685 0 +-64 -701 -663 -65 -685 0 +-87 -108 -651 -446 -464 0 +-89 -110 -653 -448 -466 0 +108 123 318 303 333 0 +110 125 320 305 335 0 +-1022 750 872 895 929 0 +221 224 230 420 234 0 +223 226 232 420 234 0 +174 189 180 183 375 0 +176 191 182 185 377 0 +-139 355 358 364 575 0 +-49 -150 -159 -132 -144 0 +-51 -152 -161 -134 -146 0 +-136 145 148 352 400 0 +-129 -351 -357 -366 -342 0 +-131 -353 -359 -368 -344 0 +-46 -354 -165 -147 -153 0 +-48 -356 -167 -149 -155 0 +-52 -162 -168 -156 -171 0 +-54 -164 -170 -158 -173 0 +-156 -399 -430 -402 -408 0 +-158 -401 -432 -404 -410 0 +53 47 50 56 44 986 0 +-63 205 208 215 260 990 0 +-990 289 437 496 545 991 0 +-991 598 640 709 737 992 0 +-992 763 779 828 839 993 0 +-88 236 239 251 263 997 0 +-997 272 310 316 325 998 0 +-998 340 440 522 552 999 0 +-999 605 621 740 766 1000 0 +-1000 794 825 831 862 902 0 +-103 472 475 578 724 1022 0 +-349 367 370 382 403 572 0 +-1039 1036 1033 1030 1027 1040 0 diff --git a/sat-chaff/test_inputs/dubois22.dimacs b/sat-chaff/test_inputs/dubois22.dimacs new file mode 100644 index 0000000..88c6b60 --- /dev/null +++ b/sat-chaff/test_inputs/dubois22.dimacs @@ -0,0 +1,190 @@ +c FILE: dubois22.cnf +c +c SOURCE: Olivier Dubois (dubois@laforia.ibp.fr) +c +c DESCRIPTION: Instance from generator gensathard.c +c +c NOTE: Not satisfiable +c +c d = 22 +c n = 66 +c p = 176 +c r = 3 +p cnf 66 176 + 43 44 1 0 +-43 -44 1 0 + 43 -44 -1 0 +-43 44 -1 0 + 1 45 2 0 + -1 -45 2 0 + 1 -45 -2 0 + -1 45 -2 0 + 2 46 3 0 + -2 -46 3 0 + 2 -46 -3 0 + -2 46 -3 0 + 3 47 4 0 + -3 -47 4 0 + 3 -47 -4 0 + -3 47 -4 0 + 4 48 5 0 + -4 -48 5 0 + 4 -48 -5 0 + -4 48 -5 0 + 5 49 6 0 + -5 -49 6 0 + 5 -49 -6 0 + -5 49 -6 0 + 6 50 7 0 + -6 -50 7 0 + 6 -50 -7 0 + -6 50 -7 0 + 7 51 8 0 + -7 -51 8 0 + 7 -51 -8 0 + -7 51 -8 0 + 8 52 9 0 + -8 -52 9 0 + 8 -52 -9 0 + -8 52 -9 0 + 9 53 10 0 + -9 -53 10 0 + 9 -53 -10 0 + -9 53 -10 0 + 10 54 11 0 +-10 -54 11 0 + 10 -54 -11 0 +-10 54 -11 0 + 11 55 12 0 +-11 -55 12 0 + 11 -55 -12 0 +-11 55 -12 0 + 12 56 13 0 +-12 -56 13 0 + 12 -56 -13 0 +-12 56 -13 0 + 13 57 14 0 +-13 -57 14 0 + 13 -57 -14 0 +-13 57 -14 0 + 14 58 15 0 +-14 -58 15 0 + 14 -58 -15 0 +-14 58 -15 0 + 15 59 16 0 +-15 -59 16 0 + 15 -59 -16 0 +-15 59 -16 0 + 16 60 17 0 +-16 -60 17 0 + 16 -60 -17 0 +-16 60 -17 0 + 17 61 18 0 +-17 -61 18 0 + 17 -61 -18 0 +-17 61 -18 0 + 18 62 19 0 +-18 -62 19 0 + 18 -62 -19 0 +-18 62 -19 0 + 19 63 20 0 +-19 -63 20 0 + 19 -63 -20 0 +-19 63 -20 0 + 20 64 21 0 +-20 -64 21 0 + 20 -64 -21 0 +-20 64 -21 0 + 21 65 66 0 +-21 -65 66 0 + 21 -65 -66 0 +-21 65 -66 0 + 22 65 66 0 +-22 -65 66 0 + 22 -65 -66 0 +-22 65 -66 0 + 23 64 22 0 +-23 -64 22 0 + 23 -64 -22 0 +-23 64 -22 0 + 24 63 23 0 +-24 -63 23 0 + 24 -63 -23 0 +-24 63 -23 0 + 25 62 24 0 +-25 -62 24 0 + 25 -62 -24 0 +-25 62 -24 0 + 26 61 25 0 +-26 -61 25 0 + 26 -61 -25 0 +-26 61 -25 0 + 27 60 26 0 +-27 -60 26 0 + 27 -60 -26 0 +-27 60 -26 0 + 28 59 27 0 +-28 -59 27 0 + 28 -59 -27 0 +-28 59 -27 0 + 29 58 28 0 +-29 -58 28 0 + 29 -58 -28 0 +-29 58 -28 0 + 30 57 29 0 +-30 -57 29 0 + 30 -57 -29 0 +-30 57 -29 0 + 31 56 30 0 +-31 -56 30 0 + 31 -56 -30 0 +-31 56 -30 0 + 32 55 31 0 +-32 -55 31 0 + 32 -55 -31 0 +-32 55 -31 0 + 33 54 32 0 +-33 -54 32 0 + 33 -54 -32 0 +-33 54 -32 0 + 34 53 33 0 +-34 -53 33 0 + 34 -53 -33 0 +-34 53 -33 0 + 35 52 34 0 +-35 -52 34 0 + 35 -52 -34 0 +-35 52 -34 0 + 36 51 35 0 +-36 -51 35 0 + 36 -51 -35 0 +-36 51 -35 0 + 37 50 36 0 +-37 -50 36 0 + 37 -50 -36 0 +-37 50 -36 0 + 38 49 37 0 +-38 -49 37 0 + 38 -49 -37 0 +-38 49 -37 0 + 39 48 38 0 +-39 -48 38 0 + 39 -48 -38 0 +-39 48 -38 0 + 40 47 39 0 +-40 -47 39 0 + 40 -47 -39 0 +-40 47 -39 0 + 41 46 40 0 +-41 -46 40 0 + 41 -46 -40 0 +-41 46 -40 0 + 42 45 41 0 +-42 -45 41 0 + 42 -45 -41 0 +-42 45 -41 0 + 43 44 -42 0 +-43 -44 -42 0 + 43 -44 42 0 +-43 44 42 0 + diff --git a/sat-chaff/test_inputs/p10.dimacs b/sat-chaff/test_inputs/p10.dimacs new file mode 100644 index 0000000..478f303 --- /dev/null +++ b/sat-chaff/test_inputs/p10.dimacs @@ -0,0 +1,577 @@ +c pigeon-10: placing 11 pigeons into 10 holes +c +c File generated by 'pigeonhole', (c) Tjark Weber +c +c The SAT encoding of this problem is very straightforward. For each pigeon i +c and each hole j we have a variable x_{n*(i-1)+j} which means that pigeon i +c is placed in hole j. Then we have n+1 clauses which say that a pigeon has +c to be placed in some hole. Then for each hole we have a set of clauses +c ensuring that only one single pigeon is placed into that hole. +c +c This encoding leads to a total of (n+1) * n propositional variables and +c (n+1) + n * (n * (n+1) / 2) clauses. +c +c The resulting SAT problem is unsatisfiable. +c +p cnf 110 561 +1 2 3 4 5 6 7 8 9 10 0 +11 12 13 14 15 16 17 18 19 20 0 +21 22 23 24 25 26 27 28 29 30 0 +31 32 33 34 35 36 37 38 39 40 0 +41 42 43 44 45 46 47 48 49 50 0 +51 52 53 54 55 56 57 58 59 60 0 +61 62 63 64 65 66 67 68 69 70 0 +71 72 73 74 75 76 77 78 79 80 0 +81 82 83 84 85 86 87 88 89 90 0 +91 92 93 94 95 96 97 98 99 100 0 +101 102 103 104 105 106 107 108 109 110 0 +-1 -11 0 +-1 -21 0 +-1 -31 0 +-1 -41 0 +-1 -51 0 +-1 -61 0 +-1 -71 0 +-1 -81 0 +-1 -91 0 +-1 -101 0 +-11 -21 0 +-11 -31 0 +-11 -41 0 +-11 -51 0 +-11 -61 0 +-11 -71 0 +-11 -81 0 +-11 -91 0 +-11 -101 0 +-21 -31 0 +-21 -41 0 +-21 -51 0 +-21 -61 0 +-21 -71 0 +-21 -81 0 +-21 -91 0 +-21 -101 0 +-31 -41 0 +-31 -51 0 +-31 -61 0 +-31 -71 0 +-31 -81 0 +-31 -91 0 +-31 -101 0 +-41 -51 0 +-41 -61 0 +-41 -71 0 +-41 -81 0 +-41 -91 0 +-41 -101 0 +-51 -61 0 +-51 -71 0 +-51 -81 0 +-51 -91 0 +-51 -101 0 +-61 -71 0 +-61 -81 0 +-61 -91 0 +-61 -101 0 +-71 -81 0 +-71 -91 0 +-71 -101 0 +-81 -91 0 +-81 -101 0 +-91 -101 0 +-2 -12 0 +-2 -22 0 +-2 -32 0 +-2 -42 0 +-2 -52 0 +-2 -62 0 +-2 -72 0 +-2 -82 0 +-2 -92 0 +-2 -102 0 +-12 -22 0 +-12 -32 0 +-12 -42 0 +-12 -52 0 +-12 -62 0 +-12 -72 0 +-12 -82 0 +-12 -92 0 +-12 -102 0 +-22 -32 0 +-22 -42 0 +-22 -52 0 +-22 -62 0 +-22 -72 0 +-22 -82 0 +-22 -92 0 +-22 -102 0 +-32 -42 0 +-32 -52 0 +-32 -62 0 +-32 -72 0 +-32 -82 0 +-32 -92 0 +-32 -102 0 +-42 -52 0 +-42 -62 0 +-42 -72 0 +-42 -82 0 +-42 -92 0 +-42 -102 0 +-52 -62 0 +-52 -72 0 +-52 -82 0 +-52 -92 0 +-52 -102 0 +-62 -72 0 +-62 -82 0 +-62 -92 0 +-62 -102 0 +-72 -82 0 +-72 -92 0 +-72 -102 0 +-82 -92 0 +-82 -102 0 +-92 -102 0 +-3 -13 0 +-3 -23 0 +-3 -33 0 +-3 -43 0 +-3 -53 0 +-3 -63 0 +-3 -73 0 +-3 -83 0 +-3 -93 0 +-3 -103 0 +-13 -23 0 +-13 -33 0 +-13 -43 0 +-13 -53 0 +-13 -63 0 +-13 -73 0 +-13 -83 0 +-13 -93 0 +-13 -103 0 +-23 -33 0 +-23 -43 0 +-23 -53 0 +-23 -63 0 +-23 -73 0 +-23 -83 0 +-23 -93 0 +-23 -103 0 +-33 -43 0 +-33 -53 0 +-33 -63 0 +-33 -73 0 +-33 -83 0 +-33 -93 0 +-33 -103 0 +-43 -53 0 +-43 -63 0 +-43 -73 0 +-43 -83 0 +-43 -93 0 +-43 -103 0 +-53 -63 0 +-53 -73 0 +-53 -83 0 +-53 -93 0 +-53 -103 0 +-63 -73 0 +-63 -83 0 +-63 -93 0 +-63 -103 0 +-73 -83 0 +-73 -93 0 +-73 -103 0 +-83 -93 0 +-83 -103 0 +-93 -103 0 +-4 -14 0 +-4 -24 0 +-4 -34 0 +-4 -44 0 +-4 -54 0 +-4 -64 0 +-4 -74 0 +-4 -84 0 +-4 -94 0 +-4 -104 0 +-14 -24 0 +-14 -34 0 +-14 -44 0 +-14 -54 0 +-14 -64 0 +-14 -74 0 +-14 -84 0 +-14 -94 0 +-14 -104 0 +-24 -34 0 +-24 -44 0 +-24 -54 0 +-24 -64 0 +-24 -74 0 +-24 -84 0 +-24 -94 0 +-24 -104 0 +-34 -44 0 +-34 -54 0 +-34 -64 0 +-34 -74 0 +-34 -84 0 +-34 -94 0 +-34 -104 0 +-44 -54 0 +-44 -64 0 +-44 -74 0 +-44 -84 0 +-44 -94 0 +-44 -104 0 +-54 -64 0 +-54 -74 0 +-54 -84 0 +-54 -94 0 +-54 -104 0 +-64 -74 0 +-64 -84 0 +-64 -94 0 +-64 -104 0 +-74 -84 0 +-74 -94 0 +-74 -104 0 +-84 -94 0 +-84 -104 0 +-94 -104 0 +-5 -15 0 +-5 -25 0 +-5 -35 0 +-5 -45 0 +-5 -55 0 +-5 -65 0 +-5 -75 0 +-5 -85 0 +-5 -95 0 +-5 -105 0 +-15 -25 0 +-15 -35 0 +-15 -45 0 +-15 -55 0 +-15 -65 0 +-15 -75 0 +-15 -85 0 +-15 -95 0 +-15 -105 0 +-25 -35 0 +-25 -45 0 +-25 -55 0 +-25 -65 0 +-25 -75 0 +-25 -85 0 +-25 -95 0 +-25 -105 0 +-35 -45 0 +-35 -55 0 +-35 -65 0 +-35 -75 0 +-35 -85 0 +-35 -95 0 +-35 -105 0 +-45 -55 0 +-45 -65 0 +-45 -75 0 +-45 -85 0 +-45 -95 0 +-45 -105 0 +-55 -65 0 +-55 -75 0 +-55 -85 0 +-55 -95 0 +-55 -105 0 +-65 -75 0 +-65 -85 0 +-65 -95 0 +-65 -105 0 +-75 -85 0 +-75 -95 0 +-75 -105 0 +-85 -95 0 +-85 -105 0 +-95 -105 0 +-6 -16 0 +-6 -26 0 +-6 -36 0 +-6 -46 0 +-6 -56 0 +-6 -66 0 +-6 -76 0 +-6 -86 0 +-6 -96 0 +-6 -106 0 +-16 -26 0 +-16 -36 0 +-16 -46 0 +-16 -56 0 +-16 -66 0 +-16 -76 0 +-16 -86 0 +-16 -96 0 +-16 -106 0 +-26 -36 0 +-26 -46 0 +-26 -56 0 +-26 -66 0 +-26 -76 0 +-26 -86 0 +-26 -96 0 +-26 -106 0 +-36 -46 0 +-36 -56 0 +-36 -66 0 +-36 -76 0 +-36 -86 0 +-36 -96 0 +-36 -106 0 +-46 -56 0 +-46 -66 0 +-46 -76 0 +-46 -86 0 +-46 -96 0 +-46 -106 0 +-56 -66 0 +-56 -76 0 +-56 -86 0 +-56 -96 0 +-56 -106 0 +-66 -76 0 +-66 -86 0 +-66 -96 0 +-66 -106 0 +-76 -86 0 +-76 -96 0 +-76 -106 0 +-86 -96 0 +-86 -106 0 +-96 -106 0 +-7 -17 0 +-7 -27 0 +-7 -37 0 +-7 -47 0 +-7 -57 0 +-7 -67 0 +-7 -77 0 +-7 -87 0 +-7 -97 0 +-7 -107 0 +-17 -27 0 +-17 -37 0 +-17 -47 0 +-17 -57 0 +-17 -67 0 +-17 -77 0 +-17 -87 0 +-17 -97 0 +-17 -107 0 +-27 -37 0 +-27 -47 0 +-27 -57 0 +-27 -67 0 +-27 -77 0 +-27 -87 0 +-27 -97 0 +-27 -107 0 +-37 -47 0 +-37 -57 0 +-37 -67 0 +-37 -77 0 +-37 -87 0 +-37 -97 0 +-37 -107 0 +-47 -57 0 +-47 -67 0 +-47 -77 0 +-47 -87 0 +-47 -97 0 +-47 -107 0 +-57 -67 0 +-57 -77 0 +-57 -87 0 +-57 -97 0 +-57 -107 0 +-67 -77 0 +-67 -87 0 +-67 -97 0 +-67 -107 0 +-77 -87 0 +-77 -97 0 +-77 -107 0 +-87 -97 0 +-87 -107 0 +-97 -107 0 +-8 -18 0 +-8 -28 0 +-8 -38 0 +-8 -48 0 +-8 -58 0 +-8 -68 0 +-8 -78 0 +-8 -88 0 +-8 -98 0 +-8 -108 0 +-18 -28 0 +-18 -38 0 +-18 -48 0 +-18 -58 0 +-18 -68 0 +-18 -78 0 +-18 -88 0 +-18 -98 0 +-18 -108 0 +-28 -38 0 +-28 -48 0 +-28 -58 0 +-28 -68 0 +-28 -78 0 +-28 -88 0 +-28 -98 0 +-28 -108 0 +-38 -48 0 +-38 -58 0 +-38 -68 0 +-38 -78 0 +-38 -88 0 +-38 -98 0 +-38 -108 0 +-48 -58 0 +-48 -68 0 +-48 -78 0 +-48 -88 0 +-48 -98 0 +-48 -108 0 +-58 -68 0 +-58 -78 0 +-58 -88 0 +-58 -98 0 +-58 -108 0 +-68 -78 0 +-68 -88 0 +-68 -98 0 +-68 -108 0 +-78 -88 0 +-78 -98 0 +-78 -108 0 +-88 -98 0 +-88 -108 0 +-98 -108 0 +-9 -19 0 +-9 -29 0 +-9 -39 0 +-9 -49 0 +-9 -59 0 +-9 -69 0 +-9 -79 0 +-9 -89 0 +-9 -99 0 +-9 -109 0 +-19 -29 0 +-19 -39 0 +-19 -49 0 +-19 -59 0 +-19 -69 0 +-19 -79 0 +-19 -89 0 +-19 -99 0 +-19 -109 0 +-29 -39 0 +-29 -49 0 +-29 -59 0 +-29 -69 0 +-29 -79 0 +-29 -89 0 +-29 -99 0 +-29 -109 0 +-39 -49 0 +-39 -59 0 +-39 -69 0 +-39 -79 0 +-39 -89 0 +-39 -99 0 +-39 -109 0 +-49 -59 0 +-49 -69 0 +-49 -79 0 +-49 -89 0 +-49 -99 0 +-49 -109 0 +-59 -69 0 +-59 -79 0 +-59 -89 0 +-59 -99 0 +-59 -109 0 +-69 -79 0 +-69 -89 0 +-69 -99 0 +-69 -109 0 +-79 -89 0 +-79 -99 0 +-79 -109 0 +-89 -99 0 +-89 -109 0 +-99 -109 0 +-10 -20 0 +-10 -30 0 +-10 -40 0 +-10 -50 0 +-10 -60 0 +-10 -70 0 +-10 -80 0 +-10 -90 0 +-10 -100 0 +-10 -110 0 +-20 -30 0 +-20 -40 0 +-20 -50 0 +-20 -60 0 +-20 -70 0 +-20 -80 0 +-20 -90 0 +-20 -100 0 +-20 -110 0 +-30 -40 0 +-30 -50 0 +-30 -60 0 +-30 -70 0 +-30 -80 0 +-30 -90 0 +-30 -100 0 +-30 -110 0 +-40 -50 0 +-40 -60 0 +-40 -70 0 +-40 -80 0 +-40 -90 0 +-40 -100 0 +-40 -110 0 +-50 -60 0 +-50 -70 0 +-50 -80 0 +-50 -90 0 +-50 -100 0 +-50 -110 0 +-60 -70 0 +-60 -80 0 +-60 -90 0 +-60 -100 0 +-60 -110 0 +-70 -80 0 +-70 -90 0 +-70 -100 0 +-70 -110 0 +-80 -90 0 +-80 -100 0 +-80 -110 0 +-90 -100 0 +-90 -110 0 +-100 -110 0 diff --git a/sat-chaff/test_inputs/p2.dimacs b/sat-chaff/test_inputs/p2.dimacs new file mode 100644 index 0000000..b46ad69 --- /dev/null +++ b/sat-chaff/test_inputs/p2.dimacs @@ -0,0 +1,25 @@ +c pigeon-2: placing 3 pigeons into 2 holes +c +c File generated by 'pigeonhole', (c) Tjark Weber +c +c The SAT encoding of this problem is very straightforward. For each pigeon i +c and each hole j we have a variable x_{n*(i-1)+j} which means that pigeon i +c is placed in hole j. Then we have n+1 clauses which say that a pigeon has +c to be placed in some hole. Then for each hole we have a set of clauses +c ensuring that only one single pigeon is placed into that hole. +c +c This encoding leads to a total of (n+1) * n propositional variables and +c (n+1) + n * (n * (n+1) / 2) clauses. +c +c The resulting SAT problem is unsatisfiable. +c +p cnf 6 9 +1 2 0 +3 4 0 +5 6 0 +-1 -3 0 +-1 -5 0 +-3 -5 0 +-2 -4 0 +-2 -6 0 +-4 -6 0 diff --git a/sat-chaff/test_inputs/p5.dimacs b/sat-chaff/test_inputs/p5.dimacs new file mode 100644 index 0000000..00db623 --- /dev/null +++ b/sat-chaff/test_inputs/p5.dimacs @@ -0,0 +1,98 @@ +c pigeon-5: placing 6 pigeons into 5 holes +c +c File generated by 'pigeonhole', (c) Tjark Weber +c +c The SAT encoding of this problem is very straightforward. For each pigeon i +c and each hole j we have a variable x_{n*(i-1)+j} which means that pigeon i +c is placed in hole j. Then we have n+1 clauses which say that a pigeon has +c to be placed in some hole. Then for each hole we have a set of clauses +c ensuring that only one single pigeon is placed into that hole. +c +c This encoding leads to a total of (n+1) * n propositional variables and +c (n+1) + n * (n * (n+1) / 2) clauses. +c +c The resulting SAT problem is unsatisfiable. +c +p cnf 30 81 +1 2 3 4 5 0 +6 7 8 9 10 0 +11 12 13 14 15 0 +16 17 18 19 20 0 +21 22 23 24 25 0 +26 27 28 29 30 0 +-1 -6 0 +-1 -11 0 +-1 -16 0 +-1 -21 0 +-1 -26 0 +-6 -11 0 +-6 -16 0 +-6 -21 0 +-6 -26 0 +-11 -16 0 +-11 -21 0 +-11 -26 0 +-16 -21 0 +-16 -26 0 +-21 -26 0 +-2 -7 0 +-2 -12 0 +-2 -17 0 +-2 -22 0 +-2 -27 0 +-7 -12 0 +-7 -17 0 +-7 -22 0 +-7 -27 0 +-12 -17 0 +-12 -22 0 +-12 -27 0 +-17 -22 0 +-17 -27 0 +-22 -27 0 +-3 -8 0 +-3 -13 0 +-3 -18 0 +-3 -23 0 +-3 -28 0 +-8 -13 0 +-8 -18 0 +-8 -23 0 +-8 -28 0 +-13 -18 0 +-13 -23 0 +-13 -28 0 +-18 -23 0 +-18 -28 0 +-23 -28 0 +-4 -9 0 +-4 -14 0 +-4 -19 0 +-4 -24 0 +-4 -29 0 +-9 -14 0 +-9 -19 0 +-9 -24 0 +-9 -29 0 +-14 -19 0 +-14 -24 0 +-14 -29 0 +-19 -24 0 +-19 -29 0 +-24 -29 0 +-5 -10 0 +-5 -15 0 +-5 -20 0 +-5 -25 0 +-5 -30 0 +-10 -15 0 +-10 -20 0 +-10 -25 0 +-10 -30 0 +-15 -20 0 +-15 -25 0 +-15 -30 0 +-20 -25 0 +-20 -30 0 +-25 -30 0 + diff --git a/sat-chaff/test_inputs/p7.dimacs b/sat-chaff/test_inputs/p7.dimacs new file mode 100644 index 0000000..d217a67 --- /dev/null +++ b/sat-chaff/test_inputs/p7.dimacs @@ -0,0 +1,221 @@ +c pigeon-7: placing 8 pigeons into 7 holes +c +c File generated by 'pigeonhole', (c) Tjark Weber +c +c The SAT encoding of this problem is very straightforward. For each pigeon i +c and each hole j we have a variable x_{n*(i-1)+j} which means that pigeon i +c is placed in hole j. Then we have n+1 clauses which say that a pigeon has +c to be placed in some hole. Then for each hole we have a set of clauses +c ensuring that only one single pigeon is placed into that hole. +c +c This encoding leads to a total of (n+1) * n propositional variables and +c (n+1) + n * (n * (n+1) / 2) clauses. +c +c The resulting SAT problem is unsatisfiable. +c +p cnf 56 204 +1 2 3 4 5 6 7 0 +8 9 10 11 12 13 14 0 +15 16 17 18 19 20 21 0 +22 23 24 25 26 27 28 0 +29 30 31 32 33 34 35 0 +36 37 38 39 40 41 42 0 +43 44 45 46 47 48 49 0 +50 51 52 53 54 55 56 0 +-1 -8 0 +-1 -15 0 +-1 -22 0 +-1 -29 0 +-1 -36 0 +-1 -43 0 +-1 -50 0 +-8 -15 0 +-8 -22 0 +-8 -29 0 +-8 -36 0 +-8 -43 0 +-8 -50 0 +-15 -22 0 +-15 -29 0 +-15 -36 0 +-15 -43 0 +-15 -50 0 +-22 -29 0 +-22 -36 0 +-22 -43 0 +-22 -50 0 +-29 -36 0 +-29 -43 0 +-29 -50 0 +-36 -43 0 +-36 -50 0 +-43 -50 0 +-2 -9 0 +-2 -16 0 +-2 -23 0 +-2 -30 0 +-2 -37 0 +-2 -44 0 +-2 -51 0 +-9 -16 0 +-9 -23 0 +-9 -30 0 +-9 -37 0 +-9 -44 0 +-9 -51 0 +-16 -23 0 +-16 -30 0 +-16 -37 0 +-16 -44 0 +-16 -51 0 +-23 -30 0 +-23 -37 0 +-23 -44 0 +-23 -51 0 +-30 -37 0 +-30 -44 0 +-30 -51 0 +-37 -44 0 +-37 -51 0 +-44 -51 0 +-3 -10 0 +-3 -17 0 +-3 -24 0 +-3 -31 0 +-3 -38 0 +-3 -45 0 +-3 -52 0 +-10 -17 0 +-10 -24 0 +-10 -31 0 +-10 -38 0 +-10 -45 0 +-10 -52 0 +-17 -24 0 +-17 -31 0 +-17 -38 0 +-17 -45 0 +-17 -52 0 +-24 -31 0 +-24 -38 0 +-24 -45 0 +-24 -52 0 +-31 -38 0 +-31 -45 0 +-31 -52 0 +-38 -45 0 +-38 -52 0 +-45 -52 0 +-4 -11 0 +-4 -18 0 +-4 -25 0 +-4 -32 0 +-4 -39 0 +-4 -46 0 +-4 -53 0 +-11 -18 0 +-11 -25 0 +-11 -32 0 +-11 -39 0 +-11 -46 0 +-11 -53 0 +-18 -25 0 +-18 -32 0 +-18 -39 0 +-18 -46 0 +-18 -53 0 +-25 -32 0 +-25 -39 0 +-25 -46 0 +-25 -53 0 +-32 -39 0 +-32 -46 0 +-32 -53 0 +-39 -46 0 +-39 -53 0 +-46 -53 0 +-5 -12 0 +-5 -19 0 +-5 -26 0 +-5 -33 0 +-5 -40 0 +-5 -47 0 +-5 -54 0 +-12 -19 0 +-12 -26 0 +-12 -33 0 +-12 -40 0 +-12 -47 0 +-12 -54 0 +-19 -26 0 +-19 -33 0 +-19 -40 0 +-19 -47 0 +-19 -54 0 +-26 -33 0 +-26 -40 0 +-26 -47 0 +-26 -54 0 +-33 -40 0 +-33 -47 0 +-33 -54 0 +-40 -47 0 +-40 -54 0 +-47 -54 0 +-6 -13 0 +-6 -20 0 +-6 -27 0 +-6 -34 0 +-6 -41 0 +-6 -48 0 +-6 -55 0 +-13 -20 0 +-13 -27 0 +-13 -34 0 +-13 -41 0 +-13 -48 0 +-13 -55 0 +-20 -27 0 +-20 -34 0 +-20 -41 0 +-20 -48 0 +-20 -55 0 +-27 -34 0 +-27 -41 0 +-27 -48 0 +-27 -55 0 +-34 -41 0 +-34 -48 0 +-34 -55 0 +-41 -48 0 +-41 -55 0 +-48 -55 0 +-7 -14 0 +-7 -21 0 +-7 -28 0 +-7 -35 0 +-7 -42 0 +-7 -49 0 +-7 -56 0 +-14 -21 0 +-14 -28 0 +-14 -35 0 +-14 -42 0 +-14 -49 0 +-14 -56 0 +-21 -28 0 +-21 -35 0 +-21 -42 0 +-21 -49 0 +-21 -56 0 +-28 -35 0 +-28 -42 0 +-28 -49 0 +-28 -56 0 +-35 -42 0 +-35 -49 0 +-35 -56 0 +-42 -49 0 +-42 -56 0 +-49 -56 0 + diff --git a/sat-chaff/test_inputs/p8.dimacs b/sat-chaff/test_inputs/p8.dimacs new file mode 100644 index 0000000..2922689 --- /dev/null +++ b/sat-chaff/test_inputs/p8.dimacs @@ -0,0 +1,314 @@ +c pigeon-8: placing 9 pigeons into 8 holes +c +c File generated by 'pigeonhole', (c) Tjark Weber +c +c The SAT encoding of this problem is very straightforward. For each pigeon i +c and each hole j we have a variable x_{n*(i-1)+j} which means that pigeon i +c is placed in hole j. Then we have n+1 clauses which say that a pigeon has +c to be placed in some hole. Then for each hole we have a set of clauses +c ensuring that only one single pigeon is placed into that hole. +c +c This encoding leads to a total of (n+1) * n propositional variables and +c (n+1) + n * (n * (n+1) / 2) clauses. +c +c The resulting SAT problem is unsatisfiable. +c +p cnf 72 297 +1 2 3 4 5 6 7 8 0 +9 10 11 12 13 14 15 16 0 +17 18 19 20 21 22 23 24 0 +25 26 27 28 29 30 31 32 0 +33 34 35 36 37 38 39 40 0 +41 42 43 44 45 46 47 48 0 +49 50 51 52 53 54 55 56 0 +57 58 59 60 61 62 63 64 0 +65 66 67 68 69 70 71 72 0 +-1 -9 0 +-1 -17 0 +-1 -25 0 +-1 -33 0 +-1 -41 0 +-1 -49 0 +-1 -57 0 +-1 -65 0 +-9 -17 0 +-9 -25 0 +-9 -33 0 +-9 -41 0 +-9 -49 0 +-9 -57 0 +-9 -65 0 +-17 -25 0 +-17 -33 0 +-17 -41 0 +-17 -49 0 +-17 -57 0 +-17 -65 0 +-25 -33 0 +-25 -41 0 +-25 -49 0 +-25 -57 0 +-25 -65 0 +-33 -41 0 +-33 -49 0 +-33 -57 0 +-33 -65 0 +-41 -49 0 +-41 -57 0 +-41 -65 0 +-49 -57 0 +-49 -65 0 +-57 -65 0 +-2 -10 0 +-2 -18 0 +-2 -26 0 +-2 -34 0 +-2 -42 0 +-2 -50 0 +-2 -58 0 +-2 -66 0 +-10 -18 0 +-10 -26 0 +-10 -34 0 +-10 -42 0 +-10 -50 0 +-10 -58 0 +-10 -66 0 +-18 -26 0 +-18 -34 0 +-18 -42 0 +-18 -50 0 +-18 -58 0 +-18 -66 0 +-26 -34 0 +-26 -42 0 +-26 -50 0 +-26 -58 0 +-26 -66 0 +-34 -42 0 +-34 -50 0 +-34 -58 0 +-34 -66 0 +-42 -50 0 +-42 -58 0 +-42 -66 0 +-50 -58 0 +-50 -66 0 +-58 -66 0 +-3 -11 0 +-3 -19 0 +-3 -27 0 +-3 -35 0 +-3 -43 0 +-3 -51 0 +-3 -59 0 +-3 -67 0 +-11 -19 0 +-11 -27 0 +-11 -35 0 +-11 -43 0 +-11 -51 0 +-11 -59 0 +-11 -67 0 +-19 -27 0 +-19 -35 0 +-19 -43 0 +-19 -51 0 +-19 -59 0 +-19 -67 0 +-27 -35 0 +-27 -43 0 +-27 -51 0 +-27 -59 0 +-27 -67 0 +-35 -43 0 +-35 -51 0 +-35 -59 0 +-35 -67 0 +-43 -51 0 +-43 -59 0 +-43 -67 0 +-51 -59 0 +-51 -67 0 +-59 -67 0 +-4 -12 0 +-4 -20 0 +-4 -28 0 +-4 -36 0 +-4 -44 0 +-4 -52 0 +-4 -60 0 +-4 -68 0 +-12 -20 0 +-12 -28 0 +-12 -36 0 +-12 -44 0 +-12 -52 0 +-12 -60 0 +-12 -68 0 +-20 -28 0 +-20 -36 0 +-20 -44 0 +-20 -52 0 +-20 -60 0 +-20 -68 0 +-28 -36 0 +-28 -44 0 +-28 -52 0 +-28 -60 0 +-28 -68 0 +-36 -44 0 +-36 -52 0 +-36 -60 0 +-36 -68 0 +-44 -52 0 +-44 -60 0 +-44 -68 0 +-52 -60 0 +-52 -68 0 +-60 -68 0 +-5 -13 0 +-5 -21 0 +-5 -29 0 +-5 -37 0 +-5 -45 0 +-5 -53 0 +-5 -61 0 +-5 -69 0 +-13 -21 0 +-13 -29 0 +-13 -37 0 +-13 -45 0 +-13 -53 0 +-13 -61 0 +-13 -69 0 +-21 -29 0 +-21 -37 0 +-21 -45 0 +-21 -53 0 +-21 -61 0 +-21 -69 0 +-29 -37 0 +-29 -45 0 +-29 -53 0 +-29 -61 0 +-29 -69 0 +-37 -45 0 +-37 -53 0 +-37 -61 0 +-37 -69 0 +-45 -53 0 +-45 -61 0 +-45 -69 0 +-53 -61 0 +-53 -69 0 +-61 -69 0 +-6 -14 0 +-6 -22 0 +-6 -30 0 +-6 -38 0 +-6 -46 0 +-6 -54 0 +-6 -62 0 +-6 -70 0 +-14 -22 0 +-14 -30 0 +-14 -38 0 +-14 -46 0 +-14 -54 0 +-14 -62 0 +-14 -70 0 +-22 -30 0 +-22 -38 0 +-22 -46 0 +-22 -54 0 +-22 -62 0 +-22 -70 0 +-30 -38 0 +-30 -46 0 +-30 -54 0 +-30 -62 0 +-30 -70 0 +-38 -46 0 +-38 -54 0 +-38 -62 0 +-38 -70 0 +-46 -54 0 +-46 -62 0 +-46 -70 0 +-54 -62 0 +-54 -70 0 +-62 -70 0 +-7 -15 0 +-7 -23 0 +-7 -31 0 +-7 -39 0 +-7 -47 0 +-7 -55 0 +-7 -63 0 +-7 -71 0 +-15 -23 0 +-15 -31 0 +-15 -39 0 +-15 -47 0 +-15 -55 0 +-15 -63 0 +-15 -71 0 +-23 -31 0 +-23 -39 0 +-23 -47 0 +-23 -55 0 +-23 -63 0 +-23 -71 0 +-31 -39 0 +-31 -47 0 +-31 -55 0 +-31 -63 0 +-31 -71 0 +-39 -47 0 +-39 -55 0 +-39 -63 0 +-39 -71 0 +-47 -55 0 +-47 -63 0 +-47 -71 0 +-55 -63 0 +-55 -71 0 +-63 -71 0 +-8 -16 0 +-8 -24 0 +-8 -32 0 +-8 -40 0 +-8 -48 0 +-8 -56 0 +-8 -64 0 +-8 -72 0 +-16 -24 0 +-16 -32 0 +-16 -40 0 +-16 -48 0 +-16 -56 0 +-16 -64 0 +-16 -72 0 +-24 -32 0 +-24 -40 0 +-24 -48 0 +-24 -56 0 +-24 -64 0 +-24 -72 0 +-32 -40 0 +-32 -48 0 +-32 -56 0 +-32 -64 0 +-32 -72 0 +-40 -48 0 +-40 -56 0 +-40 -64 0 +-40 -72 0 +-48 -56 0 +-48 -64 0 +-48 -72 0 +-56 -64 0 +-56 -72 0 +-64 -72 0 + diff --git a/sat-chaff/test_inputs/p9.dimacs b/sat-chaff/test_inputs/p9.dimacs new file mode 100644 index 0000000..3dfd7e5 --- /dev/null +++ b/sat-chaff/test_inputs/p9.dimacs @@ -0,0 +1,432 @@ +c pigeon-9: placing 10 pigeons into 9 holes +c +c File generated by 'pigeonhole', (c) Tjark Weber +c +c The SAT encoding of this problem is very straightforward. For each pigeon i +c and each hole j we have a variable x_{n*(i-1)+j} which means that pigeon i +c is placed in hole j. Then we have n+1 clauses which say that a pigeon has +c to be placed in some hole. Then for each hole we have a set of clauses +c ensuring that only one single pigeon is placed into that hole. +c +c This encoding leads to a total of (n+1) * n propositional variables and +c (n+1) + n * (n * (n+1) / 2) clauses. +c +c The resulting SAT problem is unsatisfiable. +c +p cnf 90 415 +1 2 3 4 5 6 7 8 9 0 +10 11 12 13 14 15 16 17 18 0 +19 20 21 22 23 24 25 26 27 0 +28 29 30 31 32 33 34 35 36 0 +37 38 39 40 41 42 43 44 45 0 +46 47 48 49 50 51 52 53 54 0 +55 56 57 58 59 60 61 62 63 0 +64 65 66 67 68 69 70 71 72 0 +73 74 75 76 77 78 79 80 81 0 +82 83 84 85 86 87 88 89 90 0 +-1 -10 0 +-1 -19 0 +-1 -28 0 +-1 -37 0 +-1 -46 0 +-1 -55 0 +-1 -64 0 +-1 -73 0 +-1 -82 0 +-10 -19 0 +-10 -28 0 +-10 -37 0 +-10 -46 0 +-10 -55 0 +-10 -64 0 +-10 -73 0 +-10 -82 0 +-19 -28 0 +-19 -37 0 +-19 -46 0 +-19 -55 0 +-19 -64 0 +-19 -73 0 +-19 -82 0 +-28 -37 0 +-28 -46 0 +-28 -55 0 +-28 -64 0 +-28 -73 0 +-28 -82 0 +-37 -46 0 +-37 -55 0 +-37 -64 0 +-37 -73 0 +-37 -82 0 +-46 -55 0 +-46 -64 0 +-46 -73 0 +-46 -82 0 +-55 -64 0 +-55 -73 0 +-55 -82 0 +-64 -73 0 +-64 -82 0 +-73 -82 0 +-2 -11 0 +-2 -20 0 +-2 -29 0 +-2 -38 0 +-2 -47 0 +-2 -56 0 +-2 -65 0 +-2 -74 0 +-2 -83 0 +-11 -20 0 +-11 -29 0 +-11 -38 0 +-11 -47 0 +-11 -56 0 +-11 -65 0 +-11 -74 0 +-11 -83 0 +-20 -29 0 +-20 -38 0 +-20 -47 0 +-20 -56 0 +-20 -65 0 +-20 -74 0 +-20 -83 0 +-29 -38 0 +-29 -47 0 +-29 -56 0 +-29 -65 0 +-29 -74 0 +-29 -83 0 +-38 -47 0 +-38 -56 0 +-38 -65 0 +-38 -74 0 +-38 -83 0 +-47 -56 0 +-47 -65 0 +-47 -74 0 +-47 -83 0 +-56 -65 0 +-56 -74 0 +-56 -83 0 +-65 -74 0 +-65 -83 0 +-74 -83 0 +-3 -12 0 +-3 -21 0 +-3 -30 0 +-3 -39 0 +-3 -48 0 +-3 -57 0 +-3 -66 0 +-3 -75 0 +-3 -84 0 +-12 -21 0 +-12 -30 0 +-12 -39 0 +-12 -48 0 +-12 -57 0 +-12 -66 0 +-12 -75 0 +-12 -84 0 +-21 -30 0 +-21 -39 0 +-21 -48 0 +-21 -57 0 +-21 -66 0 +-21 -75 0 +-21 -84 0 +-30 -39 0 +-30 -48 0 +-30 -57 0 +-30 -66 0 +-30 -75 0 +-30 -84 0 +-39 -48 0 +-39 -57 0 +-39 -66 0 +-39 -75 0 +-39 -84 0 +-48 -57 0 +-48 -66 0 +-48 -75 0 +-48 -84 0 +-57 -66 0 +-57 -75 0 +-57 -84 0 +-66 -75 0 +-66 -84 0 +-75 -84 0 +-4 -13 0 +-4 -22 0 +-4 -31 0 +-4 -40 0 +-4 -49 0 +-4 -58 0 +-4 -67 0 +-4 -76 0 +-4 -85 0 +-13 -22 0 +-13 -31 0 +-13 -40 0 +-13 -49 0 +-13 -58 0 +-13 -67 0 +-13 -76 0 +-13 -85 0 +-22 -31 0 +-22 -40 0 +-22 -49 0 +-22 -58 0 +-22 -67 0 +-22 -76 0 +-22 -85 0 +-31 -40 0 +-31 -49 0 +-31 -58 0 +-31 -67 0 +-31 -76 0 +-31 -85 0 +-40 -49 0 +-40 -58 0 +-40 -67 0 +-40 -76 0 +-40 -85 0 +-49 -58 0 +-49 -67 0 +-49 -76 0 +-49 -85 0 +-58 -67 0 +-58 -76 0 +-58 -85 0 +-67 -76 0 +-67 -85 0 +-76 -85 0 +-5 -14 0 +-5 -23 0 +-5 -32 0 +-5 -41 0 +-5 -50 0 +-5 -59 0 +-5 -68 0 +-5 -77 0 +-5 -86 0 +-14 -23 0 +-14 -32 0 +-14 -41 0 +-14 -50 0 +-14 -59 0 +-14 -68 0 +-14 -77 0 +-14 -86 0 +-23 -32 0 +-23 -41 0 +-23 -50 0 +-23 -59 0 +-23 -68 0 +-23 -77 0 +-23 -86 0 +-32 -41 0 +-32 -50 0 +-32 -59 0 +-32 -68 0 +-32 -77 0 +-32 -86 0 +-41 -50 0 +-41 -59 0 +-41 -68 0 +-41 -77 0 +-41 -86 0 +-50 -59 0 +-50 -68 0 +-50 -77 0 +-50 -86 0 +-59 -68 0 +-59 -77 0 +-59 -86 0 +-68 -77 0 +-68 -86 0 +-77 -86 0 +-6 -15 0 +-6 -24 0 +-6 -33 0 +-6 -42 0 +-6 -51 0 +-6 -60 0 +-6 -69 0 +-6 -78 0 +-6 -87 0 +-15 -24 0 +-15 -33 0 +-15 -42 0 +-15 -51 0 +-15 -60 0 +-15 -69 0 +-15 -78 0 +-15 -87 0 +-24 -33 0 +-24 -42 0 +-24 -51 0 +-24 -60 0 +-24 -69 0 +-24 -78 0 +-24 -87 0 +-33 -42 0 +-33 -51 0 +-33 -60 0 +-33 -69 0 +-33 -78 0 +-33 -87 0 +-42 -51 0 +-42 -60 0 +-42 -69 0 +-42 -78 0 +-42 -87 0 +-51 -60 0 +-51 -69 0 +-51 -78 0 +-51 -87 0 +-60 -69 0 +-60 -78 0 +-60 -87 0 +-69 -78 0 +-69 -87 0 +-78 -87 0 +-7 -16 0 +-7 -25 0 +-7 -34 0 +-7 -43 0 +-7 -52 0 +-7 -61 0 +-7 -70 0 +-7 -79 0 +-7 -88 0 +-16 -25 0 +-16 -34 0 +-16 -43 0 +-16 -52 0 +-16 -61 0 +-16 -70 0 +-16 -79 0 +-16 -88 0 +-25 -34 0 +-25 -43 0 +-25 -52 0 +-25 -61 0 +-25 -70 0 +-25 -79 0 +-25 -88 0 +-34 -43 0 +-34 -52 0 +-34 -61 0 +-34 -70 0 +-34 -79 0 +-34 -88 0 +-43 -52 0 +-43 -61 0 +-43 -70 0 +-43 -79 0 +-43 -88 0 +-52 -61 0 +-52 -70 0 +-52 -79 0 +-52 -88 0 +-61 -70 0 +-61 -79 0 +-61 -88 0 +-70 -79 0 +-70 -88 0 +-79 -88 0 +-8 -17 0 +-8 -26 0 +-8 -35 0 +-8 -44 0 +-8 -53 0 +-8 -62 0 +-8 -71 0 +-8 -80 0 +-8 -89 0 +-17 -26 0 +-17 -35 0 +-17 -44 0 +-17 -53 0 +-17 -62 0 +-17 -71 0 +-17 -80 0 +-17 -89 0 +-26 -35 0 +-26 -44 0 +-26 -53 0 +-26 -62 0 +-26 -71 0 +-26 -80 0 +-26 -89 0 +-35 -44 0 +-35 -53 0 +-35 -62 0 +-35 -71 0 +-35 -80 0 +-35 -89 0 +-44 -53 0 +-44 -62 0 +-44 -71 0 +-44 -80 0 +-44 -89 0 +-53 -62 0 +-53 -71 0 +-53 -80 0 +-53 -89 0 +-62 -71 0 +-62 -80 0 +-62 -89 0 +-71 -80 0 +-71 -89 0 +-80 -89 0 +-9 -18 0 +-9 -27 0 +-9 -36 0 +-9 -45 0 +-9 -54 0 +-9 -63 0 +-9 -72 0 +-9 -81 0 +-9 -90 0 +-18 -27 0 +-18 -36 0 +-18 -45 0 +-18 -54 0 +-18 -63 0 +-18 -72 0 +-18 -81 0 +-18 -90 0 +-27 -36 0 +-27 -45 0 +-27 -54 0 +-27 -63 0 +-27 -72 0 +-27 -81 0 +-27 -90 0 +-36 -45 0 +-36 -54 0 +-36 -63 0 +-36 -72 0 +-36 -81 0 +-36 -90 0 +-45 -54 0 +-45 -63 0 +-45 -72 0 +-45 -81 0 +-45 -90 0 +-54 -63 0 +-54 -72 0 +-54 -81 0 +-54 -90 0 +-63 -72 0 +-63 -81 0 +-63 -90 0 +-72 -81 0 +-72 -90 0 +-81 -90 0 + diff --git a/sat-chaff/test_inputs/test.dimacs b/sat-chaff/test_inputs/test.dimacs new file mode 100644 index 0000000..7d672fb --- /dev/null +++ b/sat-chaff/test_inputs/test.dimacs @@ -0,0 +1,3 @@ +p cnf 3 2 +1 -3 0 +2 3 -1 0 diff --git a/smt-symex/HINTS.md b/smt-symex/HINTS.md new file mode 100644 index 0000000..6545eff --- /dev/null +++ b/smt-symex/HINTS.md @@ -0,0 +1,149 @@ +# Hints +This lab ended up being a bit longer than I expected. Here I've compiled some +hints you may find helpful. There are multiple ways to encode these things, and +the encodings here are not the best: feel free to experiment! + +### Encoding bv_eq +Suppose we have the following code: +``` +// Create bitvectors x, y with width 2 +int x = new_bv(2), + y = new_bv(2); +// Assert that they're disequal +clause(-bv_eq(x, y)); +``` +The calls to `new_bv` allocate fresh "SAT-land" variables for each bit of `x` +and `y`. Suppose `x` has SAT-land bits `1, 2` and `y` has `3, 4`. The goal of +`bv_eq` is to create a SAT-land literal that is true if and only if `x` and `y` +have the same bits. We can encode this like: +``` +5 <=> (1 <=> 3) +6 <=> (2 <=> 4) +7 <=> 5 and 6 +``` + +Now how to encode `5 <=> (1 <=> 3)`? To do this we need to encode: +``` +5 => (1 <=> 3) +(1 <=> 3) => 5 +``` +It will turn out that using a different encoding of `(1 <=> 3)` for the first +vs. second will be helpful to simplify this. + +Notice that `1 <=> 3` can be encoded as either: +- `(1 => 3) and (3 => 1)`, i.e., `{-1, 3} and {-3, 1}` OR +- `(1 and 3) or (-1 and -3)`. + +So let's encode `5 => (1 <=> 3)` as +``` +5 => {-1, 3} and {-3, 1} +is the same as: +5 => {-1, 3} +5 => {-3, 1} +is the same as: +{-5, -1, 3} +{-5, -3, 1} +``` +And let's encode `(1 <=> 3) => 5` as +``` +(1 and 3) or (-1 and -3) => 5 +is the same as: +(1 and 3) => 5 +(-1 and -3) => 5 +is the same as: +{-1, -3, 5} +{1, 3, 5} +``` + +Now we're done with the first thing we wanted to encode. Doing the same trick +lets you encode `6 <=> (2 <=> 4)`. All that's left is `7 <=> 5 and 6`. This is: +``` +7 => 5 and 6 +5 and 6 => 7 +is the same as +7 => 5 +7 => 6 +5 and 6 => 7 +is the same as +{-7, 5} +{-7, 6} +{-5, -6, 7} +``` +For the very last clause, you'll want to use the `clause_arr` function rather +than `clause` (since it can be arbitrarily large depending on the variable's +bitwidth). + +And that's `bv_eq`! + +### Bitvector Addition +Think lookup table for a ripple-carry adder. Create some temporary SAT-land +variables for the carry bits, fix the first carry bit to false, and then add +clauses that compute output & carry bits from the input & prior carry bits. +This should use 16 clauses per loop iteration, looking something like: +``` +1 + 1 + 1 = 11b +(x[i] and y[i] and c[i]) => z[i] +(x[i] and y[i] and c[i]) => c[i] + +1 + 1 + 0 = 10b +(x[i] and y[i] and -c[i]) => -z[i] +(x[i] and y[i] and -c[i]) => c[i] + +Etc... +``` +Once you have the first row written out it's just a bunch of copy/paste. + +### Encoding Arrays +The one big thing to know about our array encoding is that arrays don't show up +in the SAT encoding until the very, very end (`array_axioms` called by +`solve`). Until then, the array operations are basically just tracking metadata +about bitvectors, e.g., "bitvector 10 is equal to the value at index given by +bitvector 6 in array 2." Once we are asked to solve the constraints, though, we +have to somehow communicate this array information to the SAT solver. This is +done with the "read-over-write" axioms. To explain these, suppose you have code +like this (ignoring bitvector widths): + +``` +int k1 = new_bv(), k2 = new_bv(), k3 = new_bv(), k4 = new_bv(), + v1 = new_bv(), v2 = new_bv(); +int a1 = new_array(); +int a2 = array_set(a1, k1, v1); +int x1 = array_get(a2, k2); +int a3 = array_set(a2, k3, v2); +int x2 = array_get(a3, k4); +``` +(Note: `array_set` is not "in-place;" think of it as copying the source array, +changing one index in the copy, and then returning the copy.) + +If you encode these bitvectors without adding any array constraints (basically, +no clauses for this example), what could go wrong? Well, the SAT solver could +give you back anything. E.g., it could give a solution where `k1 = k2` but +`x1 != v1`. This is clearly wrong: if you set key `k1` to value `v1`, and then +check the value at location `k2 = k1`, you should get back something equal to +the value you stored! We encode that for this read like so: +``` +(k2 = k1) => (k1 = v1) +``` +(Note in `array_axioms` you *can* call `bv_eq`!) + +We need to do the same for the read of `k4` on the last line. Clearly, if we +read at `k3` (where we just wrote) we need to return what we stored: +``` +(k4 = k3) => (x2 = v2) +``` +On the other hand, if we did not read what we just assigned to but we did read +what we assigned to earlier, we need to get back what we stored earlier: +``` +((k4 != k3) and (k4 = k1)) => (x2 = v1) +``` + +There's one last think that can go wrong. Suppose `k4 != k3`, `k4 != k1`, +`k2 != k1`, *but* `k4 = k2`. In other words, we never read anything we +explicitly set, but we read the same key twice. With just the clauses we added +so far, the SAT solver could still give us a solution where `x1 != x2` even +though `k4 = k2`. To rule this out, we need to add a clause: +``` +((k4 != k3) and (k4 = k2)) => (x2 = x1) +``` + +And that's arrays! diff --git a/smt-symex/PRELAB.md b/smt-symex/PRELAB.md new file mode 100644 index 0000000..98b7862 --- /dev/null +++ b/smt-symex/PRELAB.md @@ -0,0 +1,71 @@ +# SAT/Symex+SMT Labs Prelab + +By Wednesday, we will make a symbolic execution (symex) engine for a simple +little "assembly language." Think of a symex engine as a tool that tries to +generate inputs to your program that cause it to execute a certain line. For +example, in this program: +``` +load 0 0 ; r0 = memory[r0] +immediate 1 10 ; r1 = 10 +branch_eq 0 1 2 ; if r0 == r1 goto l1 else goto l2 +l1: fail +l2: exit +``` +The symex engine will attempt to find initial registers & memory values that +cause the `fail` instruction to be reached. In this case, it will say setting +`r0 = 0`, `memory[0] = 10` does the trick. + +Symex engines are built on SMT solvers which are built on SAT solvers. +Roughly, SAT solvers are symex for when you have no branching, no memory, and +finitely-many boolean registers. The only operations allowed are "and," "or," +and "not." SMT solvers add support for int (non-boolean) values and memory. +Symex engines add support for branching, loops, and some assembly/code syntax. + +### Monday: SAT Solver Prelab +SAT solvers solve _boolean constraints_. For example, you can say "find an +assignment for $x$, $y$, $z$ such that: (i) $z$ is true, (ii) if $x$ and $y$ +are true then $z$ is false, and (iii) either $x$ or $y$ is true." + +In order to keep SAT solvers as simple and fast as possible, the input language +describing constraints for most SAT solvers is pretty restrictive. Here's an +example: +``` +c Amazing comment!! +p cnf 3 3 +3 0 +-1 -2 -3 0 +1 2 0 +``` +- Initial lines can start with `c` for `c`omments. +- The `p` (for `p`roblem?) line tells us how many variables and how many + clauses (remaining lines). +- The constraints are given in AND of OR form; each line represents an OR and + every line has to be satisfied (AND). +- Every line ends in `0` (variables are numbered starting from `1`). +- `n` means that variable should be true, `-n` means false. +- The basic idea is to assign each variable true or false so that every line + "predicts" at least one variable's true/falseness correctly. +In the above example, line `3 0` means "variable 3 should be true," the next +line means "either variable 1 is false, or variable 2 is false, or variable 3 +is false," and the last line means "either variable 1 is true or variable 2 is +true." If you think about it, those constraints are exactly the same as (i), +(ii), (iii) from earlier. + +You can plug this in to minsat (or the [web +version](http://logicrunch.it.uu.se:4096/~wv/minisat/)) to get a solution: +``` +SATISFIABLE + +-1 2 3 0 +``` +This means there is a solution, namely, variable 1 false, variable 2 true, and +variable 3 true. + +We'll be writing our own version of minisat, including a few hacks to speed it +up. We'll be basing our version on the SAT solver called Chaff, which you +should read about +[here](https://www.princeton.edu/~chaff/publication/DAC2001v56.pdf) +(specifically sections 1 and 2!). + +### SMT/Symex Prelab +TODO diff --git a/smt-symex/README.md b/smt-symex/README.md new file mode 100644 index 0000000..4e74687 --- /dev/null +++ b/smt-symex/README.md @@ -0,0 +1,116 @@ +# SMT + SymEx Lab + +The goal of this lab is to build a working symbolic execution engine off of our +SAT solver. + +### STOP!!! +Before you proceed, make sure you do one of: +- If you finished the "fast" SAT solver last week, copy the `fast` binary into + `code/` as `code/fast`. +- If you only finished the "basic" SAT solver last week, copy the `basic` + binary into `code/` as `code/fast` (yes, pretend it's fast!). +- If you finished neither, but downloaded minisat and it's on your path, pass + `-DUSE_MINISAT` to all compilation steps (see the Makefile). + +### SMT Solver +The core of our symex engine will be an SMT solver. An SMT solver is a nice +frontend to a SAT solver, allowing you to construct constraints involving +arrays and bitvectors (finite bitwidth integers, like in C). + +For simplicity, we'll be building an eager SMT solver, also known as bit +blasting. This is the same fundamental approach used by the STP solver: +https://github.com/stp/stp + +The idea is to "compile" the higher-level constraints into a big SAT problem, +then use our SAT solver to solve this problem. This approach is nice because +it makes a clean separation between the SMT solver and SAT solver; you can test +against your SMT solver against any SAT solver to better localize bugs, and we +don't have to change our SAT solver at all. + +When you create a bitvector of size N, it actually creates N new bits in the +SAT problem representing the N bits of the bitvector. The method `bv_eq(b1,b2)` +creates a new SAT variable `v_eq` and spits out clauses ensuring that `v_eq` is +true if and only if all of the bits in b1 and b2 are identical. Similar for +`bv_add(b1,b2)` --- we essentially spit out a ripple-carry adder in the +underlying SAT constraints. + +Arrays are a bit more complicated. When the user requests `arr[x]`, we give +back a fresh bitvector and record separately that it's supposed to be `arr[x]`. +Then, before spitting out the final DIMACS file, we look at every earlier call +to `arr[y]` and add assertions that `arr[x] = arr[y]` if `x = y` (being careful +to handle cases where we overwrite `arr[x]`!). + +Then, we print the constraints to a DIMACS file, run our SAT solver, and read +back in the results. + +Some tips/reminders for the SAT encoding: +- `x <=> y` is the same as `x => y` and `y => x` +- `x => z` is equivalent to the clause `{-x, z}` +- `x and y => z` is `{-x, -y, z}` +- `x or y => z` is `x => z` and `y => z` +- `x => y and z` is `x => y` and `x => z` +- `x => y or z` is `{-x, y, z}` + +I have provided some "unit tests" for the SMT solver which you can run with +`make do_tests`. I suggest the following order of implementation: +1. Implement `solve` and `get_solution` +2. Implement `new_bv`, `const_bv`, `bv_eq` +3. Run `make do_tests` --- the first test (`test_basic_bv`) should pass +4. Implement `bv_add` +5. Run `make do_tests` --- the first two tests (`test_basic_bv`, `test_bv_add`) + should pass +6. Implement `new_array`, `array_store`, `array_get`, `array_axioms` +7. Run `make do_tests` --- all tests should pass + +Then you should be in a good position to move on to the SymEx engine! + +### Symbolic Interpreter +We'll work on a simple little assembly-like IR. This IR has: +- Arbitrarily many registers +- A word size determined by the `WORD_SIZE` global in `main.c` +- A heap memory indexed by registers +- A branching instruction that jumps to a relative offset if two registers have + the same value +- A "failure" instruction that indicates any path reaching this is a bug + +The idea is to basically implement a little interpreter for this language +except: +1. Instead of using concrete integers for register/memory values, use + bitvectors and array operations as exposed by the SMT solver library. +2. When a branch statement is reached, simply fork the interpreter. In one + process, assert the branch is taken and proceed. In the other, assert it's + not and proceed. +3. When a failure statement is reached, try to solve the current path + constraints. If a solution is found, that represents an input that can reach + this failure location, i.e., a bug. If we visit all possible paths and none + can reach fail, we've proven the absence of such bugs. + +The trickiest part is actually printing out the solution at the end. We need to +track the first time we use a register, as well as the first time we read a +certain value in memory (since these represent possible inputs to our program). + +All you need to do is implement the instructions symbolically by calling out to +the methods in `smt.h`. Use `get_register` and `set_register` to get/set +bitvectors representing register values; these methods will automatically +update IN_VARS for register operations, but you'll need to do it yourself for +memory operations. + +### Symbolic Interpreter Without Arrays +If you want to try doing the symex engine without finishing the arrays portion +of `smt.c`, you can do that too. You should be able to run +`test_programs/test_prog`. + +### Extensions +- Extend the symex IR to support more operations +- Write a compiler (or interpreter!) from a higher-level language (some useful + subset of C?) to the symex IR +- Modern SMT solvers often use a *lazy* encoding instead of eager/bitblasting. + The idea is to only give the SAT solver a subset of the clauses; if it says + "unsat" with that subset, you're already done. Otherwise, check if its + solution also satisfies the remaining clauses. If not, give it a few more + clauses until those clauses rule out the current attempted solution. Repeat + this until you either get unsat or find a solution that works for all the + clauses. This is often faster in part because it lets you check the remaining + clauses however you want, without having to somehow encode them into CNF. + Also, you may not need all the clauses to prove unsat (or even SAT), so just + adding them as-needed is a good idea. diff --git a/smt-symex/code/Makefile b/smt-symex/code/Makefile new file mode 100644 index 0000000..55950d8 --- /dev/null +++ b/smt-symex/code/Makefile @@ -0,0 +1,30 @@ +.PHONY: clean all + +CFLAGS += -g +CFLAGS += -O3 +# CFLAGS += -fsanitize=address + +all: main test_basic_bv test_bv_add test_arrays + +main: main.c smt.o + mkdir -p temp_files + $(CC) $(CFLAGS) $^ -o $@ + +test_basic_bv: test_cases/test_basic_bv.c smt.o + $(CC) $(CFLAGS) $^ -o $@ -I. + +test_bv_add: test_cases/test_bv_add.c smt.o + $(CC) $(CFLAGS) $^ -o $@ -I. + +test_arrays: test_cases/test_arrays.c smt.o + $(CC) $(CFLAGS) $^ -o $@ -I. + +do_tests: test_basic_bv test_bv_add test_arrays + ./test_basic_bv + ./test_bv_add + ./test_arrays + +smt.o: smt.c + +clean: + rm -rf *.o main temp_files diff --git a/smt-symex/code/main.c b/smt-symex/code/main.c new file mode 100644 index 0000000..1aba62c --- /dev/null +++ b/smt-symex/code/main.c @@ -0,0 +1,190 @@ +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <stdint.h> +#include <assert.h> +#include <sys/types.h> +#include <unistd.h> +#include "smt.h" + +/**** GLOBALS ****/ + +// This is the bitvector width to use, i.e., the word size of the machine. Note +// that the underlying SMT library will start to fail if this is greater than +// 32, and will *definitely* fail if this is greater than 63. +static const int WORD_SIZE = 4; + +// Each instruction in our program has one of these opcodes +enum op { + OP_EXIT = 0, // End program + OP_IMMEDIATE, // Copy an immediate into a register + OP_MOVE, // Copy one register into another + OP_STORE, // Move one register into the memory pointed to by another + OP_LOAD, // Move memory pointed to by one register into another + OP_BRANCH_EQ, // If the two registers have identical values, jump + OP_FAIL, // If this point is reached, there is a bug + OP_ADD, // Addition of registers +}; + +static const char *op_names[] = { + "exit", "immediate", "move", "store", "load", "branch_eq", "fail", "add", +}; + +// An instruction is an opcode and some arguments +struct instruction { + enum op op; + int64_t args[3]; +}; + +// We store the program as an array of instructions +static struct instruction *PROGRAM = NULL; +static int N_PROGRAM = 0; + +// An input variable is a register whose value we use without ever loading or +// moving a value into it, *OR* a memory read that hasn't been read before. We +// use this list to print out just the parts of the solution that we need (the +// idea is everything else is just a function of these). Every initial read +// from an unassigned register is stored here, along with every memory +// load/store (they will be dedup'd at the printing stage). +struct in_var { + int register_number; + int bv_id; + + // If this is a memory lookup... + int bv_key, is_store; +}; +static struct in_var *IN_VARS = NULL; +static int N_IN_VARS = 0; + +static int *REGS = NULL, N_REGS = 0; +static void set_register(int n, int val) { + while (n >= N_REGS) + APPEND_GLOBAL(REGS) = -1; + REGS[n] = val; +} + +static int get_register(int n) { + if (n < N_REGS && REGS[n] >= 0) return REGS[n]; + set_register(n, new_bv(WORD_SIZE)); + APPEND_GLOBAL(IN_VARS) = (struct in_var){ + .register_number = n, + .bv_id = REGS[n], + }; + return REGS[n]; +} + +/**** main symbolic interpreter ****/ +int main() { + // Parse the input program + char opcode[20]; + int64_t args[3]; + while (!feof(stdin)) { + memset(args, 0, sizeof(args)); + assert(scanf("%s %ld %ld %ld ", opcode, &(args[0]), &(args[1]), &(args[2]))); + if (!strcmp(opcode, ";")) { + while (getc(stdin) != '\n'); + continue; + } + enum op op = OP_EXIT; + for (int i = 0; i < sizeof(op_names) / sizeof(op_names[0]); i++) { + if (!strcmp(opcode, op_names[i])) { + op = i; + break; + } + } + APPEND_GLOBAL(PROGRAM).op = op; + memcpy(PROGRAM[N_PROGRAM - 1].args, args, sizeof(args)); + } + + // Create an array to represent program memory (uncomment once your solver + // supports arrays!) + // int array_memory = new_array(); + + // Do the symbolic interpretation. We generally use dst src ordering. + int pc = 0; + while (pc < N_PROGRAM) { + struct instruction instruction = PROGRAM[pc++]; + printf("[%d] %s\n", getpid(), op_names[instruction.op]); + int bv_lhs, bv_rhs, bv_dst_addr, bv_src; + switch (instruction.op) { + // Register Operations + case OP_IMMEDIATE: // immediate dstreg value + assert(!"Implement me"); + break; + case OP_MOVE: // move dstreg srcreg + assert(!"Implement me"); + break; + case OP_ADD: // add dstreg op1reg op2reg + assert(!"Implement me"); + break; + + // Memory operations + case OP_STORE: // store addrreg valuereg + // Get a bv for the destination address register and source + // register value, then do a set to memory. + // IMPORTANT: Afterwards, append to IN_VARS like so: + // APPEND_GLOBAL(IN_VARS) = (struct in_var){ + // .register_number = -1, + // .bv_key = bv_dst_addr, + // .is_store = 1, + // }; + assert(!"Implement me"); + break; + case OP_LOAD: // load addrreg dstvaluereg + // Get a bv for the source address register, do a get from + // memory, then set the destination register to the result. + // IMPORTANT: Afterwards, append to IN_VARS like so: + // APPEND_GLOBAL(IN_VARS) = (struct in_var){ + // .register_number = -1, + // .bv_id = bv_dst_register_value, + // .bv_key = bv_source_address_register, + // .is_store = 0, + // }; + assert(!"Implement me"); + break; + + // Branching + case OP_BRANCH_EQ: // branch_eq op1 op2 offset_if_eq + // Get bvs for the two register arguments. Fork, asserting + // equality/disequality in each process and update the pc as + // necessary. Note that, if the values are equal, we should + // jump to the pc of this instruction + offset_if_eq. But above + // we've already done pc++, so you need one fewer. + assert(!"Implement me"); + break; + + // Success & failure + case OP_FAIL: + if (solve()) { + printf("[%d] Found solution:\n", getpid()); + for (int i = 0; i < N_IN_VARS; i++) { + if (IN_VARS[i].register_number >= 0) { + printf("\t[%d] Register %d = %ld\n", getpid(), + IN_VARS[i].register_number, + get_solution(IN_VARS[i].bv_id, 0)); + } else if (IN_VARS[i].is_store) { + continue; + } else { + int key = get_solution(IN_VARS[i].bv_key, 0); + // Make sure we haven't read from/wrote to this key + // before + int found = 0; + for (int j = 0; j < i; j++) { + if (IN_VARS[j].register_number == -1 + && get_solution(IN_VARS[j].bv_key, 0) == key) { + found = 1; + break; + } + } + if (found) continue; + printf("\t[%d] Memory[%d] = %ld\n", getpid(), + key, get_solution(IN_VARS[i].bv_id, 0)); + } + } + } + case OP_EXIT: + return 0; + } + } + return 0; +} diff --git a/smt-symex/code/smt.c b/smt-symex/code/smt.c new file mode 100644 index 0000000..dec99b2 --- /dev/null +++ b/smt-symex/code/smt.c @@ -0,0 +1,220 @@ +#include <stdio.h> +#include <stdlib.h> +#include <assert.h> +#include <string.h> +#include <sys/types.h> +#include <unistd.h> +#include "smt.h" + +// Keep track of clauses to be sent to the SAT solver +struct clause { + sat_lit *literals; + int n_literals; +}; +static struct clause *CLAUSES = NULL; +static int N_CLAUSES = 0; + +void clause_arr(int *literals) { + int i = N_CLAUSES; + APPEND_GLOBAL(CLAUSES) = (struct clause){ + .literals = NULL, + .n_literals = 0, + }; + for (; *literals; literals++) { + APPEND_FIELD(CLAUSES[i], literals) = *literals; + } +} + +// Keep track of arrays in a tree structure. (store a k v) creates a new array +// whose parent is a, bv_store_key is k, and bv_store_value is v. Whenever a +// get is done on the array, a corresponding bv_lookup is appended to its list. +struct bv_lookup { + bv_h bv_key, bv_value; +}; + +struct array { + array_h array_parent; + + bv_h bv_store_key, bv_store_value; + + struct bv_lookup *bv_lookups; + int n_bv_lookups; +}; +static struct array *ARRAYS = NULL; +static int N_ARRAYS = 0; + +// Keep track of bitvectors +struct bv { + sat_lit *bits; + int n_bits; +}; +static struct bv *BVS = NULL; +static int N_BVS = 0; + +// You can get a fresh SAT variable like NEXT_SAT_VAR++ +static sat_lit NEXT_SAT_VAR = 1; + +array_h new_array() { + // Create a new array. It has no parent (-1) and no lookups yet (NULL, 0). + // Returns its index in the ARRAYS vector. + assert(!"Implement me!"); +} + +array_h array_store(int old_array, int bv_key, int bv_value) { + // Construct a new array that is the same as old_array except bv_key is + // updated to bv_value. This should look like new_array() except you set + // array_parent, bv_store_key, bv_store_value correctly. + assert(!"Implement me!"); +} + +int array_get(int array, int bv_key, int out_width) { + // Create a new bitvector and (on the corresponding array) record this + // key/value pair lookup. + assert(!"Implement me!"); +} + +int new_bv(int width) { + // Create a fresh bitvector of the given width. Note here you need to + // append to the BVS vector as well as initialize all its bits to fresh SAT + // variables. + assert(!"Implement me!"); +} + +int const_bv(int64_t value, int width) { + // Like new_bv, except also add clauses asserting its bits are the same as + // those of @value. Please do little-endian; bits[0] should be value & 1. + assert(!"Implement me!"); +} + +int bv_eq(int bv_1, int bv_2) { + int width = BVS[bv_1].n_bits; + assert(width == BVS[bv_2].n_bits); + + // This one is a doozy: add a fresh SAT variable and enough SAT clauses to + // assert that this variable is true iff all the bits of bv_1 and bv_2 are + // equal. I suggest using as many of intermediate/temp SAT variables as you + // need; generally, BCP does a great job at handling those so they're more + // or less "free" (at least, for our purposes rn!). + assert(!"Implement me!"); +} + +int bv_add(int bv_1, int bv_2) { + int width = BVS[bv_1].n_bits; + assert(width == BVS[bv_2].n_bits); + + int out = new_bv(width); + + // This one is similarly big; basically you want to do a ripple-carry + // adder to assign the bits of @out based on the bits of @bv_1, @bv_2. I + // would recommend just trying to encode it as a truth table. + assert(!"Implement me!"); +} + +static void array_axioms(struct array array, int compare_up_to, + struct bv_lookup bv_lookup, int already_handled) { + if (array.array_parent >= 0) { + // This array is of the form (store parent k v), where k and v are + // array.bv_store_*. Add clauses here of the form: + // ((k == lookup.key) ^ !already_handled) => (store_val == bv_val) + // Hint: use bv_eq! + assert(!"Implement me!"); + + // Now we need to record if that worked or not. If this is picking up + // that store, then we don't need the value to match with any prior + // values (because they were overridden). So make a fresh SAT variable + // new_already_handled and assign it: + // (already_handled or (k == lookup.key)) <=> new_already_handled + assert(!"Implement me!"); + + // Then update already_handled = new_already_handled + assert(!"Implement me!"); + } + + // If we haven't found a set yet, compare lookup[key] to all prior lookups + // on the array. If keys eq, vals should be eq too. + for (int i = 0; i < compare_up_to; i++) { + struct bv_lookup sub_lookup = array.bv_lookups[i]; + // We want: + // !already_handled ^ (sub_lookup.key == bv_lookup.key) + // => sub_lookup.value == bv_lookup.value + assert(!"Implement me!"); + } + + // If we haven't found a set yet, go back through parents and repeat this + // reasoning. + if (array.array_parent >= 0) { + array_axioms(ARRAYS[array.array_parent], + ARRAYS[array.array_parent].n_bv_lookups, + bv_lookup, already_handled); + } +} + +int *SAT_SOLUTION = NULL; +int solve() { + assert(!SAT_SOLUTION); + char constraint_path[256] = ""; + sprintf(constraint_path, "temp_files/constraints.%d.dimacs", getpid()); + + FILE *fout = fopen(constraint_path, "w"); + + int zero = NEXT_SAT_VAR++; + clause(-zero); + + // Go through array stores & lookups and set up the N^2 bv_eq implications + // implied + for (int i = 0; i < N_ARRAYS; i++) { + for (int j = 0; j < ARRAYS[i].n_bv_lookups; j++) { + array_axioms(ARRAYS[i], j, ARRAYS[i].bv_lookups[j], zero); + } + } + + // Print the clauses and some info about the variable interpretations + for (int i = 0; i < N_BVS; i++) { + fprintf(fout, "c bitvector %d:", i); + for (int j = 0; j < BVS[i].n_bits; j++) + fprintf(fout, " %d", BVS[i].bits[j]); + fprintf(fout, "\n"); + } + fprintf(fout, "p cnf %d %d\n", NEXT_SAT_VAR - 1, N_CLAUSES); + + // Iterate through the clauses and print them in DIMACS format. + assert(!"Implement me!"); + + fclose(fout); + + char result_path[256] = ""; + sprintf(result_path, "temp_files/results.%d.txt", getpid()); + + char cmd[1024] = ""; +#ifdef USE_MINISAT + sprintf(cmd, "minisat %s %s > /dev/null", constraint_path, result_path); +#else + sprintf(cmd, "cat %s | ./fast > %s", constraint_path, result_path); +#endif + assert(system(cmd) != -1); + + FILE *results = fopen(result_path, "r"); + char sat_or_unsat[10] = "NONE"; + assert(fscanf(results, "%s ", sat_or_unsat)); + if (!strcmp(sat_or_unsat, "UNSAT")) { + fclose(results); + return 0; + } else if (!strcmp(sat_or_unsat, "SAT")) { + SAT_SOLUTION = malloc(NEXT_SAT_VAR * sizeof(SAT_SOLUTION[0])); + int literal = 0; + while (!feof(results) && fscanf(results, " %d ", &literal)) { + if (literal < 0) SAT_SOLUTION[-literal] = 0; + else SAT_SOLUTION[literal] = 1; + } + fclose(results); + return 1; + } + exit(1); +} + +int64_t get_solution(int bv, int as_signed) { + assert(SAT_SOLUTION); + + // Read the bits for @bv from SAT_SOLUTION into an int64_t. + assert(!"Implement me!"); +} diff --git a/smt-symex/code/smt.h b/smt-symex/code/smt.h new file mode 100644 index 0000000..678a02e --- /dev/null +++ b/smt-symex/code/smt.h @@ -0,0 +1,48 @@ +#pragma once +#include <stdint.h> + +typedef int bv_h; // handle to a bitvector +typedef int sat_lit; // sat literal +typedef int array_h; // handle to an array + +#define APPEND_GLOBAL(NAME) (*({ \ + NAME = realloc(NAME, (++N_##NAME) * sizeof(NAME[0])); \ + NAME + N_##NAME - 1; \ +})) + +#define APPEND_FIELD(OBJ, FIELD) (*({ \ + (OBJ).FIELD = realloc((OBJ).FIELD, (++(OBJ).n_##FIELD) * sizeof((OBJ).FIELD[0])); \ + (OBJ).FIELD + ((OBJ).n_##FIELD - 1); \ +})) + +// Create a fresh array and return a handle to it +array_h new_array(); +// Return an updated array where the only difference is bv_key's value is now +// bv_value +array_h array_store(array_h old_array, bv_h bv_key, bv_h bv_value); +// Return the value of bv_key in this array +array_h array_get(array_h array, bv_h bv_key, int out_width); +// Create a fresh bitvector of the given width and return a handle to it +bv_h new_bv(int width); +// Create a *constant* bitvector of the given width with the given value and +// return a handle to it +bv_h const_bv(int64_t value, int width); +// Create a new literal/variable that is true iff the bitvectors represented by +// handles bv_1 and bv_2 are equal. +sat_lit bv_eq(bv_h bv_1, bv_h bv_2); +// Return a handle to a fresh bitvector with value equal to the sum of that of +// bv_1, bv_2. +bv_h bv_add(bv_h bv_1, bv_h bv_2); + +// Add a clause/assertion to the underlying SAT instance. E.g., to assert that +// bv1 and bv2 are handles to distinct bitvectors, use clause(-bv_eq(bv1, bv2)) +void clause_arr(sat_lit *literals); +#define clause(...) clause_arr((sat_lit[]){__VA_ARGS__, 0}) + +// Try to find a solution to the current set of constraints. Should only be +// called once (per process). Returns 0 for unsat, 1 for sat. In the latter +// case, the satisfying model can be queried with get_solution. +int solve(); +// Query the model that satisfies the current constraints. Can only be called +// once solve() is called and returns 1. +int64_t get_solution(bv_h bv, int as_signed); diff --git a/smt-symex/code/test_cases/test_arrays.c b/smt-symex/code/test_cases/test_arrays.c new file mode 100644 index 0000000..6a0cef4 --- /dev/null +++ b/smt-symex/code/test_cases/test_arrays.c @@ -0,0 +1,67 @@ +#include <stdio.h> +#include <assert.h> +#include "smt.h" + +// Tests new_array, array_store, array_get +int main() { + printf("Testing arrays...\n"); + + int bv_const_10 = const_bv(10, 10), + bv_const_0 = const_bv(0, 10), + bv_x = new_bv(10), + bv_y = new_bv(10); + + int arr0 = new_array(); + // Store x into 10 + int arr1 = array_store(arr0, bv_const_10, bv_x); + // Store y into x + int arr2 = array_store(arr1, bv_x, bv_y); + // Store x into arr2[10] + int arr3 = array_store(arr2, array_get(arr2, bv_const_10, 10), bv_x); + + // Assert x, y are both non-zero and both distinct + clause(-bv_eq(bv_x, bv_const_0)); + clause(-bv_eq(bv_y, bv_const_0)); + clause(-bv_eq(bv_x, bv_y)); + + // We're going to check the following facts: + // (1) arr1[10] == x + // (2) arr2[x] == y + // (3) if x == 10 then arr2[10] == y + // else (arr2[10] == x && arr2[x] == y) + // (4) if x == 10 then (arr3[y] == x && arr3[x] == arr2[x]), + // else arr3[x] == x + int arr1_10 = array_get(arr1, bv_const_10, 10), + arr2_x = array_get(arr2, bv_x, 10), + arr2_10 = array_get(arr2, bv_const_10, 10), + arr3_y = array_get(arr3, bv_y, 10), + arr3_x = array_get(arr3, bv_x, 10); + + // Should be sat... + assert(solve()); + + assert(get_solution(arr1_10, 0) == get_solution(bv_x, 0)); + assert(get_solution(arr2_x, 0) == get_solution(bv_y, 0)); + if (get_solution(bv_x, 0) == 10) { + assert(get_solution(arr2_10, 0) == get_solution(bv_y, 0)); + } else { + assert(get_solution(arr2_10, 0) == get_solution(bv_x, 0)); + assert(get_solution(arr2_x, 0) == get_solution(bv_y, 0)); + } + if (get_solution(bv_x, 0) == 10) { + assert(get_solution(arr3_y, 0) == get_solution(bv_x, 0)); + assert(get_solution(arr3_x, 0) == get_solution(arr2_x, 0)); + } else { + assert(get_solution(arr3_x, 0) == get_solution(bv_x, 0)); + } + + // And the inequality & const clauses we added are important too... + assert(get_solution(bv_const_10, 0) == 10); + assert(get_solution(bv_const_0, 0) == 0); + assert(get_solution(bv_x, 0) != get_solution(bv_y, 0)); + assert(get_solution(bv_x, 0)); + assert(get_solution(bv_y, 0)); + + printf("Passed!\n"); + return 0; +} diff --git a/smt-symex/code/test_cases/test_basic_bv.c b/smt-symex/code/test_cases/test_basic_bv.c new file mode 100644 index 0000000..6f6b922 --- /dev/null +++ b/smt-symex/code/test_cases/test_basic_bv.c @@ -0,0 +1,28 @@ +#include <stdio.h> +#include <assert.h> +#include "smt.h" + +// Tests new_bv, const_bv, bv_eq, solve, and get_solution. +int main() { + printf("Testing basic bitvectors...\n"); + + int bv_const_10 = const_bv(10, 10); + int bv_x = new_bv(10), + bv_y = new_bv(10); + + // assert x == const_10 + clause(bv_eq(bv_x, bv_const_10)); + // assert x == y + clause(bv_eq(bv_x, bv_y)); + + // Should be sat... + assert(solve()); + + // And everything should be 10! + assert(get_solution(bv_const_10, 0) == 10); + assert(get_solution(bv_x, 0) == 10); + assert(get_solution(bv_y, 0) == 10); + + printf("Passed!\n"); + return 0; +} diff --git a/smt-symex/code/test_cases/test_bv_add.c b/smt-symex/code/test_cases/test_bv_add.c new file mode 100644 index 0000000..d73951a --- /dev/null +++ b/smt-symex/code/test_cases/test_bv_add.c @@ -0,0 +1,29 @@ +#include <stdio.h> +#include <assert.h> +#include "smt.h" + +// Test all bitvector functions, including add. Uses the SMT solver to compute +// subtraction, i.e., solve for x such that 11 + x = 23. +int main() { + printf("Testing bitvectors with addition...\n"); + + int bv_const_11 = const_bv(11, 10), + bv_const_23 = const_bv(23, 10); + int bv_x = new_bv(10); + + int bv_11_plus_x = bv_add(bv_const_11, bv_x); + + // assert 11 + x == 23 + clause(bv_eq(bv_11_plus_x, bv_const_23)); + + // Should be sat... + assert(solve()); + + // And 11 = 11, 23 = 23, and x = 12 + assert(get_solution(bv_const_11, 0) == 11); + assert(get_solution(bv_const_23, 0) == 23); + assert(get_solution(bv_x, 0) == 12); + + printf("Passed!\n"); + return 0; +} diff --git a/smt-symex/test_programs/test_memory b/smt-symex/test_programs/test_memory new file mode 100644 index 0000000..0240094 --- /dev/null +++ b/smt-symex/test_programs/test_memory @@ -0,0 +1,6 @@ +load 0 0 +; assert(r0 == 10) +immediate 1 10 +branch_eq 0 1 2 +fail +exit diff --git a/smt-symex/test_programs/test_prog b/smt-symex/test_programs/test_prog new file mode 100644 index 0000000..73486c4 --- /dev/null +++ b/smt-symex/test_programs/test_prog @@ -0,0 +1,8 @@ +immediate 0 5 +immediate 1 2 +; r3 = (r1=2) + r2 +add 3 1 2 +; assert(r3 == 5) +branch_eq 3 0 2 +exit +fail diff --git a/static-analysis/.gitignore b/static-analysis/.gitignore new file mode 100644 index 0000000..3b2122a --- /dev/null +++ b/static-analysis/.gitignore @@ -0,0 +1,3 @@ +.*.sw* +build +/*.staff.c diff --git a/static-analysis/COMPILER b/static-analysis/COMPILER new file mode 100644 index 0000000..788cc34 --- /dev/null +++ b/static-analysis/COMPILER @@ -0,0 +1,183 @@ +### Compiler +The goal of the compiler is to go from lexemes down to the IR accepted by the +checker you wrote for the prelab. The compiler will compile each function in +the source C file into a different IR program, separated by the string +"~~~\n". + +For example, we might have: + + $ cat test_inputs/simple_if.c + void foo(int *x) { + *x = 5; + if (x) + *x = 6; + } + + void bar(int *x) { + *x = 5; + while (x) + x = 6; + } + $ make build/compiler + $ ./build/compiler test_inputs/simple_if.c + ~~~ + 3 D 177693 2 + 4 K 5861415 2 + 9 B 177693 6 7 3 + 6 K 0 + 11 D 177693 4 + 12 K 5861415 4 + 13 B 0 8 8 0 + 7 K 0 + 8 K 0 + 1 K 0 + ~~~ + 3 D 177693 8 + 4 K 5861415 8 + 6 K 0 + 9 B 177693 7 8 9 + 7 K 0 + 11 K 177693 10 + 12 B 0 6 6 0 + 8 K 0 + 1 K 0 + +Note that ./build/compiler returned one IR block per function, while the +checker from the prelab only accepts one IR block at a time. The helper script +helper_scripts/check_file.py will automatically separate these blocks and call +the prelab checker once for each block. In other words, don't worry about it. + +The compilation approach we'll use here is vaguely inspired by +https://legacy.cs.indiana.edu/~dyb/pubs/ddcg.pdf although _significantly_ +jankier. + +One big thing to keep in mind: we're not going to be able to handle all the +minutiae of the C language, and we're not even really going to try. We're just +going to try to handle the 90% common case as well as possible in a reasonable +code budget, then fiddle with it afterwards to reduce false positives. + +### Compiler Starter Code Walkthrough +I'm giving a pretty significant chunk of starter code to get you going. You're +welcome to start from scratch if you prefer. But if not, read on ... + +First, take a look at main.c. It just reads the file provided into a temporary +buffer, lexes that buffer (you wrote this in part 2a!), and then calls +"process_program". + +Now, open up compiler.c and take a look at process_program. The goal of this +function is to identify functions in the C source code and compile each one +individually. To do that, we walk over lexemes until we see a "{". Then, we +locate the end of that block using the match_body method and call visit_stmt +on that range of lexemes. visit_stmt does the actual work of compiling the +function. Then we keep searching for more functions after that one until the +array of lexemes is emptied. + +### Implementing the Compiler +The two functions you want to work in are: + + - visit_stmt(range, meta): takes a range in the file and compiles the + relevant statements to stdout + - visit_expr(range, meta): takes a range in the file and compiles the + single expression contained in that range to stdout + +The struct meta @meta argument is defined in compiler.h. It contains the +following metadata that is useful to the parser at any point in time: + + - fn_start: the first lexeme in this function + - fn_end: one-past-the-end lexeme of this function + - continue_to: what label should the IR jump to if the C code sees a + "continue"? + - break_to: what label should the IR jump to if the C code sees a "break"? + - return_to: what label should the IR jump to if the C code sees a + "return"? + - true_branch: what label should the IR jump to if this expression is + true? + - false_branch: what label should the IR jump to if this expression is + false? + +You probably don't need to worry about fn_start or fn_end. The most confusing +meta fields are true_branch and false_branch; basically, if they are non-zero +while you're inside visit_expr, they indicate that the program is branching +based on the value of this expression. Make sure you propagate these properly, +e.g., through short-circuiting operators like "&&". + +Note there are some parts of the code that are nasty/old stuff I don't quite +remember why I did. They are set aside in blocks that say "NASTY, IGNORE ME" +--- please do so, at least until you've filled in all the "unimplemented"s. + +### Helper Functions +You should use the helper functions kill, deref, nop_labelled, branch, +branchrange, and goto_ to output the IR. These functions make sure to output +the line number as well in a suitable way. + +There are some helper functions to help with the parsing: + + - find(lm, rm, str): looks for a lexeme with string @str in the range + [lm,rm). Note this skips over the interior of balanced parentheses. + - match_body(lm): looks for one-past-the-end of the body of the statement + starting at @lm. E.g., match_body([<do>, <{>, ..., <}>, <while>, ...]) + will return the <}> right before the <while>. + +### Tip +The big big big tip for implementing the compiler is to always first convert +your statement type to a "goto program" that's halfway between C and our IR. +for example, a general if/else pattern in C looks like: + + if (cond) then_body; else else_body; + +you might write it as a "goto program" like so: + + branch <cond> then_label else_label; + then_label: + <then_body> + goto exit + else_label: + <else_body> + exit_label: + +you can then translate "goto programs" pretty much line-by-line into code you +can stick into the compiler (note you need to construct metas correctly): + + visit_expr(<cond>, {.true = then_label, .false = else_label}) + nop_labeled(then_label) + visit_stmt(<then_body>) + goto_(exit) + nop_labeled(else_label) + visit_stmt(<else_body>) + nop_labeled(exit_label) + +### Example +Supposing the function body has lexemes: + + <if> <(> <y> <)> <*> <x> <;> + +You'll probably see a callstack roughly like: + + visit_stmt([<if>, ..., <;>], {}) + body_label = 1, exit_label = 2 + visit_expr([<y>], {.true_branch=1, .false_branch=2}) + branchrange([<y>], 1, 2) + nop_labelled(1) + visit_stmt([<*>, <x>, <;>], {}) + visit_expr([<*>, <x>], {}) + deref([<x>]) + visit_expr([<x>], {}) + nop_labelled(2) + +Notice how it's actually visit_expr that compiles in the branch. + +Another example, for short-circuiting operations, if you have something like + + visit_expr([<x>, <&&>, <y>], {}) + first_true = 1, exit = 2 + visit_expr([<x>], {.true_branch = 1, .false_branch = 2}) + nop_labelled(1) + visit_expr([<y>], {}) + nop_labelled(2) + +A few notes about these examples: + + - They are not fully generalizable; to handle, say, else blocks you may + need extra labels + - The labels 1, 2 are just examples here; in practice you can get a unique + label using the bump allocator, i.e., just use BUMP++ diff --git a/static-analysis/LEXER b/static-analysis/LEXER new file mode 100644 index 0000000..2bd4e2b --- /dev/null +++ b/static-analysis/LEXER @@ -0,0 +1,61 @@ +### Lexer +##### What is a lexer? +The first step in most compilers is to lex the input file. Lexing basically +means "chunking up" the input file into logical tokens, rather than individual +characters. For example, the line: + + if (bar ==foo) continue; + +consists of ~30 characters, but logically the compiler should see it as 8 +chunks (tokens, lexemes) like this: + + <if> <(> <bar> <==> <foo> <)> <continue> <;> + +Basically, the lexer normalizes the input file, ignoring spaces and collecting +characters that are logically one into a single lexeme. For our compiler, we'll +also store a few other things on our lexemes: + + - string: the null-terminated string contents of this lexeme + - label: the broad class of lexeme; either LEX_STR_LIT, LEX_NUM_LIT, + LEX_OP, or LEX_IDENT. + - line_no: the line number in the original file that this lexeme was on + (starts at 1) + - out_id: set to 0 for now + - label_id: set to 0 for now + +##### Implementing the lexer +I've given most of a lexer in lexer.c. Your job is to add rules that lex the +following types of tokens: + + - [ ] string literals -> not ident or op + - [ ] character literals -> not ident or op + - [ ] hex literals 0x1234 -> not ident or op + - [ ] int literals -> not ident or op + - [ ] identifiers (including 'foo', 'if', 'for', ...) -> label ident + +Note that the code to insert into the lexeme array is given to you; you just +need to set the @s pointer and @label value properly. + +NOTE: If you're not lexing whitespace (I do it for you, so you shouldn't be) +then you want to set @s to one past the last character that you want to be part +of the lexeme. + +##### Testing the lexer +As an initial test, you can: + + $ make build/lexer_tests + $ ./build/lexer_tests + +which should print a bunch of "Passed!" messages + +To go a bit further, I've included a helper script that lets you run your lexer +against an arbitrary file and see what it lexes to. This lets you compare your +lexer to mine. + + $ make build/lex_file + $ ./build/lex_file test_inputs/mlme.c > mlme.lexed.c + $ diff mlme.lexed.c test_inputs/mlme.lexed.staff.c + +If you match my lexer output on this test case you're probably good to go +(*assuming* you've picked proper labels ...). You might even do a better job +lexing than me :) diff --git a/static-analysis/Makefile b/static-analysis/Makefile new file mode 100644 index 0000000..19aabbb --- /dev/null +++ b/static-analysis/Makefile @@ -0,0 +1,25 @@ +# NOTE: We need at least -O2 to get tail call recursion without stack +# overflows. +CFLAGS = -g -lm -D_GNU_SOURCE +CFLAGS += -O3 +CFLAGS += -I. +# CFLAGS += -fsanitize=address + +all: build/compiler build/lexer_tests build/lex_file + +build/compiler: compiler.c lexer.c main.c utils.c + mkdir -p $(dir $@) + $(CC) $(CFLAGS) $^ -o $@ + +build/lexer_tests: lexer.c helper_scripts/lexer_tests.c + mkdir -p $(dir $@) + $(CC) $(CFLAGS) $^ -o $@ + +build/lex_file: lexer.c helper_scripts/lex_file.c + mkdir -p $(dir $@) + $(CC) $(CFLAGS) $^ -o $@ + +clean: + rm -rf build + +.PHONY: all clean diff --git a/static-analysis/README b/static-analysis/README new file mode 100644 index 0000000..6e5b998 --- /dev/null +++ b/static-analysis/README @@ -0,0 +1,71 @@ +### Ultimate Lab Goal +As you've learned in this class, it's hard to write C correctly. And operating +systems are huge C projects. In this lab we're going to implement a simple +static checker that will help us automatically search for bugs in huge C +projects. Our checker will find C code that looks like this: + + *x = 5; + if (x) + return; + +This code indicates a bug, because on the first line you dereference $x$ (i.e., +requiring that it is non-null) then on the second line you check if $x$ is null +or not (i.e., asserting a belief that it may be null). One of these beliefs +must be wrong. + +We're going to vaguely be implementing a small part of this: +https://mlfbrown.com/paper.pdf +Combined with a little bit of this: +https://legacy.cs.indiana.edu/~dyb/pubs/ddcg.pdf + +Our implementation will be in two parts: first, a checker that runs on a super +simplified IR (the prelab). Second, a compiler from C to that IR (the main +lab). I'll provide some helper scripts to hook them up together and +pretty-print the results. + +### Part 1: Prelab +Do the prelab described in prelab/README + +### Part 2a: Lexer +Do the lexer described in LEXER + +### Part 2b: Compiler +Do the compiler described in COMPILER + +### Part 3: Check the Linux Kernel +If you're pretty confident your compiler & checker work, you can check the +whole kernel like so: + + $ git clone --depth=1 https://github.com/torvalds/linux.git linux + $ ./helper_scripts/check_repo.sh linux + ... bugs come out here ... + +### Part 4: Checkoff +You should have: + + - [ ] Prelab that matches my output on the prelab test_inputs + - [ ] ./build/lexer_tests passes + - [ ] ./build/lex_file test_inputs/mlme.c either matches the staff output + or is a better/also reasonable lexing + - [ ] Your checker has good SNR so it's easy to find 5--10 bugs in Linux + - [ ] Write a C file that causes your checker to have a false positive + - [ ] Write a C file that causes your checker to have a false negative + +### Part 5: Extensions +You could ... + + - Fiddle with the compiler to improve the SNR + - Implement different checks + - E.g., an easy one to adapt this checker to: look for cases where you + free(x) on every path before reaching a dereference *x. + - Our compiler is super janky; I think you can probably simplify the code + and improve robustness of the parser by writing some kind of + PEG-with-actions library/DSL + - Write a compiler from another language (unsafe rust? c++? go?) + - Run it on different codebases (freebsd tends to have a bunch of these + bugs) + - Compare SNR to just asking ChatGPT + - Try reducing false positives by feeding each bug report to ChatGPT and + asking it if it's a true bug or not + - Pick one or two bug reports that look like true positives & track down + Why the existing kernel checkers didn't catch it diff --git a/static-analysis/compiler.c b/static-analysis/compiler.c new file mode 100644 index 0000000..492d393 --- /dev/null +++ b/static-analysis/compiler.c @@ -0,0 +1,388 @@ +#include "compiler.h" + +struct lexeme RET_STATE; +char *PATH = "[none]"; + +uint64_t BUMP; + +void kill(struct lexrange expr) { + printf("%lu K %lu %lu\n", BUMP++, hash_range(expr), expr.lm->line_no); +} +void deref(struct lexrange expr) { + printf("%lu D %lu %lu\n", BUMP++, hash_range(expr), expr.lm->line_no); +} +void nop_labelled(uint64_t label) { + printf("%lu K 0\n", label); +} +void branch(uint64_t expr, uint64_t label_true, uint64_t label_false, uint64_t line) { + // in case we break or continue in something that's not a loop ... + if (!label_true || !label_false) + return nop_labelled(BUMP++); + printf("%lu B %lu %lu %lu %lu\n", BUMP++, expr, label_true, label_false, line); +} +void branchrange(struct lexrange expr, uint64_t label_true, uint64_t label_false) { + branch(hash_range(expr), label_true, label_false, expr.lm->line_no); +} +void goto_(uint64_t label) { + branch(0, label, label, 0); +} + +void process_program() { + size_t n_fns = 0; + for (struct lexeme *l = LEXEMES; l != LEXEMES + N_LEXEMES;) { + if (!LEXSTR(l, "{")) { + l++; + } else { + struct meta meta = {0}; + meta.fn_start = l; + meta.fn_end = match_body(l); + if (!meta.fn_end) return; + printf("~~~\n"); + BUMP = 1; + meta.return_to = BUMP++; + visit_stmt(torange(l + 1, meta.fn_end), meta); + nop_labelled(meta.return_to); + l = meta.fn_end; + } + } +} + +/********* PARSING **********/ +void visit_stmt(struct lexrange range, struct meta meta) { + struct lexeme *lm = range.lm; + if (range.rm > meta.fn_end) range.rm = meta.fn_end; + // Hit the end of the program! + if (!lm || lm >= range.rm) return; + if (lm->out_id) return; + lm->out_id = BUMP++; + + struct lexeme *end_paren = NULL, *body_end = NULL; + if (LEXSTR(lm + 1, "(")) end_paren = find(lm + 1, NULL, ")"); + if (end_paren) body_end = match_body(end_paren + 1); + + struct meta submeta = meta; + if (LEXSTR(lm, "for")) { + // given: for (init; cond; upd) body + if (!end_paren || !body_end) goto fail; + struct lexeme *first_semi = find(lm + 2, NULL, ";"); + if (!first_semi) goto fail; + struct lexeme *second_semi = find(first_semi + 1, NULL, ";"); + if (!second_semi) goto fail; + + uint64_t cond = BUMP++, update = BUMP++, body = BUMP++, exit = BUMP++; + + visit_stmt(torange(lm + 2, first_semi + 1), meta); + + nop_labelled(cond); + submeta = meta; + submeta.true_branch = body; + submeta.false_branch = exit; + visit_expr(torange(first_semi + 1, second_semi), submeta); + + submeta = meta; + submeta.continue_to = update; + submeta.break_to = exit; + nop_labelled(body); + visit_stmt(torange(end_paren + 1, body_end), submeta); + + nop_labelled(update); + visit_expr(torange(second_semi + 1, end_paren), meta); + goto_(cond); + nop_labelled(exit); + return visit_stmt(torange(body_end, range.rm), meta); + } else if (LEXSTR(lm, "while")) { + if (!end_paren || !body_end) goto fail; + + // you'll probably need three labels: cond, body, and exit + // the condition expression is [lm+2, end_paren) + // the body is [end_paren+1, body_end) + assert(!"unimplemented"); + + return visit_stmt(torange(body_end, range.rm), meta); + } else if (LEXSTR(lm, "if")) { + if (!end_paren || !body_end) goto fail; + + // you'll probably need three labels: then, else_, and exit + // the condition expression is [lm+2, end_paren) + // the body is [end_paren+1, body_end) + assert(!"unimplemented"); + + if (LEXSTR(body_end, "else")) { + struct lexeme *else_end = match_body(body_end + 1); + + // the else body is [body_end + 1, else_end) + assert(!"unimplemented"); + + // the end of the whole statement is the end of the body + body_end = else_end; + } + + // in case you need something here ... + assert(!"unimplemented"); + + return visit_stmt(torange(body_end, range.rm), meta); + } else if (LEXSTR(lm, "do")) { + if (!(body_end = match_body(lm + 1))) goto fail; + + // you'll probably need cond, body, and exit + // the body is [lm + 1, body_end) + assert(!"unimplemented"); + + end_paren = find(body_end + 1, NULL, ")"); + // the condition is [body_end, end_paren) + assert(!"unimplemented"); + + return visit_stmt(torange(end_paren + 1, range.rm), meta); + } else if (LEXSTR(lm, "switch")) { + /****** NASTY, IGNORE ME ******/ + if (!end_paren || !body_end) goto fail; + + uint64_t exit = BUMP++, body = BUMP++; + submeta = meta; + submeta.true_branch = body; + submeta.false_branch = body; + visit_expr(torange(lm + 2, end_paren), submeta); + + nop_labelled(body); + submeta = meta; + submeta.break_to = exit; + + int is_case = 0; + size_t first_case = BUMP; + for (struct lexeme *l = end_paren + 1; l != body_end; l++) { + is_case = is_case || LEXSTR(l, "case") || LEXSTR(l, "default"); + if (is_case && LEXSTR(l, ":")) { + BUMP++; + is_case = 0; + } + } + size_t n_cases = BUMP - first_case; + for (size_t i = 0; i < n_cases; i++) + branch(0, first_case + i, BUMP + 1, range.lm->line_no); + nop_labelled(BUMP++); + + int i = first_case; + for (struct lexeme *l = end_paren + 1; l != body_end; l++) { + is_case = is_case || LEXSTR(l, "case") || LEXSTR(l, "default"); + if (is_case && LEXSTR(l, ":")) { + nop_labelled(first_case++); + visit_stmt(torange(l + 1, body_end), submeta); + is_case = 0; + } + } + nop_labelled(exit); + return visit_stmt(torange(body_end, range.rm), meta); + /****** END NASTY ******/ + } else if (LEXSTR(lm, "case") || LEXSTR(lm, "default") || LEXSTR(lm + 1, ":")) { + struct lexeme *colon = find(lm + 1, NULL, ":"); + if (!colon) goto fail; + if (!(lm->label_id)) lm->label_id = BUMP++; + nop_labelled(lm->label_id); + return visit_stmt(torange(colon + 1, range.rm), meta); + } else if (LEXSTR(lm, "continue")) { + goto_(meta.continue_to); + return visit_stmt(torange(lm + 2, range.rm), meta); + } else if (LEXSTR(lm, "break")) { + assert(!"unimplemented"); + } else if (LEXSTR(lm, "return")) { + assert(!"unimplemented"); + } else if (LEXSTR(lm, "goto")) { + for (struct lexeme *l = meta.fn_start; l != meta.fn_end; l++) { + if (LEXSTR(l, (lm + 1)->string) && LEXSTR(l + 1, ":")) { + if (!(l->label_id)) l->label_id = BUMP++; + goto_(l->label_id); + break; + } + } + return visit_stmt(torange(lm + 3, range.rm), meta); + } else if (LEXSTR(lm, "{") || LEXSTR(lm, "}")) { + return visit_stmt(torange(lm + 1, range.rm), meta); + } + + // match foo() { ... } + if (end_paren && body_end) { + visit_stmt(torange(end_paren + 1, body_end), meta); + return visit_stmt(torange(body_end, range.rm), meta); + } + + /****** NASTY, IGNORE ME ******/ + struct lexeme *semi = find(lm, NULL, ";"); + int saw_star = 0, anything_interesting = LEXSTR(lm, "*"); + for (struct lexeme *l = lm; l != semi && l != LEXEMES + N_LEXEMES; l++) { + saw_star |= LEXSTR(l, "*"); + if (semi && !LEXSTR(lm, "*") && (LEXSTR(l, ",") || LEXSTR(l, "="))) { + struct lexeme *og_l = l; + while (1) { + l = find(l, semi, "="); + if (!l) break; + struct lexeme *rm = find(l, semi, ","); + if (!rm) rm = semi; + visit_expr(torange(l + 1, rm), meta); + l = rm; + } + if (LEXSTR(og_l, "=")) kill(torange(lm, og_l)); + goto finish; + } + // Definitely an expression... + if (!(l->label == LEX_IDENT || LEXSTR(l, "*") || LEXSTR(l, "[") || LEXSTR(l, "]"))) { + anything_interesting = 1; + break; + } + } + /****** END NASTY ******/ + if (!semi) goto fail; + if (anything_interesting) + // It's a line + visit_expr(torange(lm, semi), meta); +finish: + return visit_stmt(torange(semi + 1, range.rm), meta); +fail: + return visit_stmt(torange(lm + 1, range.rm), meta); +} + +void visit_expr(struct lexrange range, struct meta meta) { + if (range.rm >= meta.fn_end) range.rm = meta.fn_end; + if (range.lm >= range.rm) return; + struct lexeme *lm = range.lm, *rm = range.rm; + if (lm == rm || !lm || !rm) return; + // Handle expression. + struct meta og_meta = meta; + meta.true_branch = meta.false_branch = 0; + + struct lexeme *found = NULL; + if (LEXSTR(lm, "(") && (find(lm, rm, ")") + 1 == rm)) + return visit_expr(torange(lm + 1, rm - 1), og_meta); + + // Don't parse initializer lists ... + if (LEXSTR(lm, "{") && (find(lm, rm, "}") + 1 == rm)) + return; + + if (found = find(lm, rm, ",")) { + visit_expr(torange(lm, found), meta); + return visit_expr(torange(found + 1, rm), og_meta); + } + + char *assignops[] = {"=","+=","-=","&=","|=","<<=",">>=",NULL}; + for (char **op = &assignops[0]; *op; op++) { + if (!(found = find(lm, rm, *op))) continue; + assert(found + 1 != lm); + if (found == lm || found + 1 == rm) goto fail; + visit_expr(torange(lm, found), meta); + visit_expr(torange(found + 1, rm), og_meta); + return kill(torange(lm, found)); + } + if (find(lm, rm, "?") || LEXSTR(lm, "sizeof") || LEXSTR(lm, "typeof")) + goto opaque; + + // Handle BINOPS + struct lexeme *strip = lm; + for (; strip != rm && strip->label == LEX_OP; strip++); + char *binops[] = {"||","&&","!=","==",">=","<=",">","<",">>", + "<<","|","&","^","-","+","%","/","*",NULL}; + struct lexeme *op = NULL; + for (char **b = &binops[0]; *b; b++) + if (op = find(strip, rm, *b)) + break; + if (op) { + int lhs_null = (lm + 1 == op) && (LEXSTR(lm, "null") || LEXSTR(lm, "0")); + int rhs_null = (op + 2 == rm) && (LEXSTR(op + 1, "null") || LEXSTR(op + 1, "0")); + assert(op + 1 <= rm); + if (LEXSTR(op, "==") && lhs_null) { +#define NEGATE(l, r) { \ + meta.true_branch = og_meta.false_branch; \ + meta.false_branch = og_meta.true_branch; \ + return visit_expr(torange(l, r), meta); } + NEGATE(op + 1, rm); + } else if (LEXSTR(op, "==") && rhs_null) { + assert(!"unimplemented"); + } else if (LEXSTR(op, "!=") && lhs_null) { + return visit_expr(torange(op + 1, rm), og_meta); + } else if (LEXSTR(op, "!=") && rhs_null) { + assert(!"unimplemented"); + } else if (LEXSTR(op, "&&")) { + uint64_t first_true = BUMP++, + either_false = og_meta.false_branch ? og_meta.false_branch : BUMP++; + meta.true_branch = first_true; + meta.false_branch = either_false; + visit_expr(torange(lm, op), meta); + nop_labelled(first_true); + visit_expr(torange(op + 1, rm), og_meta); + if (!og_meta.false_branch) + nop_labelled(either_false); + } else if (LEXSTR(op, "||")) { + assert(!"unimplemented"); + } else if (lm != op && op != rm) { + visit_expr(torange(lm, op), meta); + visit_expr(torange(op + 1, rm), meta); + } + goto opaque; + } + + // Handle PREOPS + if (strstr(lm->string, "ret")) { + goto opaque; + } else if (lm->label == LEX_OP) { + if (LEXSTR(lm, "!")) + NEGATE(lm + 1, rm); + if (LEXSTR(lm, "*")) + assert(!"unimplemented"); + if (LEXSTR(lm, "&")) + assert(!"unimplemented"); + else + visit_expr(torange(lm + 1, rm), meta); + if (LEXSTR(lm, "++") || LEXSTR(lm, "--")) + assert(!"unimplemented"); + } else if (LEXSTR(rm - 1, "++") || LEXSTR(rm - 1, "--")) { + assert(lm <= (rm - 1)); + kill(torange(lm, rm - 1)); + visit_expr(torange(lm, rm - 1), meta); + } else if (LEXSTR(rm - 1, "]")) { + struct lexeme *open_bracket = find(rm - 1, lm, "["); + if (!open_bracket) goto fail; + deref(torange(lm, open_bracket)); + visit_expr(torange(lm, open_bracket), meta); + visit_expr(torange(open_bracket + 1, rm - 1), meta); + } else if (lm + 2 <= rm && LEXSTR(rm - 2, ".")) { + visit_expr(torange(lm, rm - 2), meta); + } else if (lm + 2 <= rm && LEXSTR(rm - 2, "->")) { + assert(!"unimplemented"); + } else if (LEXSTR(rm - 1, ")")) { + /****** NASTY, IGNORE ME ******/ + struct lexeme *arg_start = find(rm - 1, lm, "("); + if (!arg_start) goto fail; + if (lm+1 != arg_start) goto fail; // ?????? + arg_start++; + struct lexeme *comma = find(arg_start, rm - 1, ","); + while (comma) { + visit_expr(torange(arg_start, comma), meta); + arg_start = comma + 1; + comma = find(arg_start, rm - 1, ","); + } + if (arg_start + 1 != rm - 1) + visit_expr(torange(arg_start, rm - 1), meta); + // If this is a panic, err, abort, ... then we need to *NOT* fallthrough. + char *exits[] + = {"panic","exit","err","abort","die","bug_on","oops", + "ret","goto","out_of_mem","throw","usage","fatal","quit", + "fail","stop",NULL}; + for (char **e = &exits[0]; *e; e++) { + if (!strstr(lm->string, *e)) continue; + // dirt: expressions can't actually kill paths, but they can reset the + // state (which is effectively the same) + goto opaque; + } + char *exact_exits[] = {"bug",NULL}; + for (char **e = &exact_exits[0]; *e; e++) { + if (!LEXSTR(lm, *e)) continue; + // dirt: expressions can't actually kill paths, but they can reset the + // state (which is effectively the same) + goto opaque; + } + /****** END NASTY ******/ + } +fail: +opaque: + // If we are not branching based on this; just keep going + if (!(og_meta.true_branch || og_meta.false_branch)) return; + branchrange(range, og_meta.true_branch, og_meta.false_branch); +} diff --git a/static-analysis/compiler.h b/static-analysis/compiler.h new file mode 100644 index 0000000..9205531 --- /dev/null +++ b/static-analysis/compiler.h @@ -0,0 +1,74 @@ +#include <string.h> +#include <stddef.h> +#include <stdio.h> +#include <stdlib.h> +#include <assert.h> +#include <string.h> +#include <assert.h> +#include <stdlib.h> +#include <stdbool.h> +#include <stdio.h> +#include <ctype.h> +#include <sys/types.h> +#include <sys/stat.h> +#include <unistd.h> +#include <stdint.h> + +#define append_field(o, f) *({ \ + o.f = realloc(o.f, (++o.n_##f) * sizeof(o.f[0])); \ + o.f + (o.n_##f - 1); \ +}) + +// Guaranteed to return 0 or 1. +#define LEXSTR(x, s) (x && x < LEXEMES + N_LEXEMES && !strcmp((x)->string, (s))) + +#define prefix(hay, needle) \ + !strncmp(hay, needle, strlen(needle)) + +enum lex_label { + LEX_NONE, LEX_STR_LIT, LEX_NUM_LIT, + LEX_OP, LEX_IDENT +}; + +struct lexrange { + struct lexeme *lm, *rm; +}; +#define torange(l, r) (struct lexrange){l,r} + +struct lexeme { + char *string; + enum lex_label label; + size_t line_no; + uint64_t out_id, label_id; +}; + +#define MAX_LEXEMES (1 << 20) +extern struct lexeme LEXEMES[MAX_LEXEMES]; +extern size_t N_LEXEMES; +extern char *PATH; + +/////// lexer.c +void lex(char *s); + +/////// utils.c +uint64_t hash_range(struct lexrange range); +// search in this range for a lexeme with string @str +// NOTE: does *not* match inside of balanced parens, e.g., (a) should not match +// a, but (a)a should (the second a). +struct lexeme *find(struct lexeme *l, struct lexeme *rm, char *str); +// returns the end of the body for the statement starting at @l. +// e.g., while (x) { foo(); bar(); } ... +// will return the first lexeme in the ...s. +struct lexeme *match_body(struct lexeme *l); + +///// nanochex.c +struct meta { + struct lexeme *fn_start, *fn_end; + uint64_t continue_to, break_to, true_branch, false_branch, return_to; +}; +// statically execute the statement starting at lexeme @lm. +void visit_stmt(struct lexrange range, struct meta meta); +// statically evaluate the expression in range [@lm, @rm) +void visit_expr(struct lexrange range, struct meta meta); +// process an entire program (multiple functions) +void process_program(); diff --git a/static-analysis/helper_scripts/check_file.py b/static-analysis/helper_scripts/check_file.py new file mode 100644 index 0000000..06fc9fb --- /dev/null +++ b/static-analysis/helper_scripts/check_file.py @@ -0,0 +1,28 @@ +import sys +import subprocess + +if sys.argv[1].endswith("_table.c"): + sys.exit(0) + +output = subprocess.check_output(["./build/compiler", sys.argv[1]]).decode("utf-8") +functions = output.split("~~~\n") + +any_error = False +for function in map(str.strip, functions): + if not function: continue + try: + output = subprocess.check_output(["./prelab/main"], input=function, encoding="utf-8") + except subprocess.CalledProcessError: + if any_error: continue + if len(sys.argv) > 2: + open("/tmp/hi.prog", "w").write(function + "\n") + print(f"error {sys.argv[1]}") + any_error = True + continue + if output.strip(): + function = {line.split()[0]: line.split()[-1] + for line in function.split("\n")} + for bug in output.strip().split("\n"): + deref, check = bug.strip().split(":") + deref, check = function[deref], function[check] + print(f"{sys.argv[1]}:{deref}:{check}") diff --git a/static-analysis/helper_scripts/check_repo.sh b/static-analysis/helper_scripts/check_repo.sh new file mode 100755 index 0000000..ea2d06d --- /dev/null +++ b/static-analysis/helper_scripts/check_repo.sh @@ -0,0 +1,18 @@ +#!/bin/bash + +if [ "$#" -ne 1 ]; then + echo -e "Usage: $0 /path/to/repository/to/check" + exit 1 +fi + +listpath=$(mktemp) +# find $1 -name '*.c' | shuf | head -n500 > $listpath +find $1 -name '*.c' > $listpath + +resultpath=$(mktemp) +parallel --progress --eta --bar -a $listpath "python3 helper_scripts/check_file.py" > $resultpath + +python3 helper_scripts/collate.py $resultpath + +rm $listpath +rm $resultpath diff --git a/static-analysis/helper_scripts/collate.py b/static-analysis/helper_scripts/collate.py new file mode 100644 index 0000000..ac17337 --- /dev/null +++ b/static-analysis/helper_scripts/collate.py @@ -0,0 +1,47 @@ +import sys + +def main(): + print(sys.argv) + args = sys.argv[1:] + errors = [l.strip().split()[-1] + for arg in args + for l in open(arg, "r").readlines() + if l.strip().startswith("error")] + for error in errors: + print("error", error) + warnings = [l.strip().split(':') + for arg in args + for l in open(arg, "r").readlines() + if l.strip() and l.strip()[-1].isnumeric()] + warnings = [(checkline[0],) + tuple(map(int, checkline[1:])) + for checkline in warnings] + warnings = sorted(warnings, key=lambda xyz: (max(xyz[1:]) - min(xyz[1:]))) + for path, *checklines in reversed(warnings): + print(f"{path}:" + ":".join(map(str, checklines))) + pprint_area(path, checklines) + print("Done with collation.") + print(f"{len(warnings)} warnings processed.") + checkloc = set(w[-1] for w in warnings) + print(f"Out of those, {len(checkloc)} were unique check lines.") + derefloc = set(w[1] for w in warnings) + print(f"Out of those, {len(derefloc)} were unique deref lines.") + +def pprint_area(file, checklines): + try: + contents = open(file, "r").readlines() + except UnicodeDecodeError: + return + lower, upper = min(checklines), max(checklines) + context = 1 if (upper - lower) > 5 else 1 + for i, line in enumerate(contents): + i = i + 1 + line = line[:-1] + if i < lower - context: continue + if i > upper + context: continue + if i in checklines: + print(">>>>>", line) + else: + print(" ", line) + +if __name__ == "__main__": + main() diff --git a/static-analysis/helper_scripts/lex_file.c b/static-analysis/helper_scripts/lex_file.c new file mode 100644 index 0000000..4ef243d --- /dev/null +++ b/static-analysis/helper_scripts/lex_file.c @@ -0,0 +1,26 @@ +#include <stdio.h> +#include <string.h> +#include <assert.h> +#include "compiler.h" + +int main(int argc, char **argv) { + struct stat statbuf; + assert(argc > 1); + stat(argv[1], &statbuf); + + FILE *fd = fopen(argv[1], "r"); + assert(fd); + + char *data = calloc(statbuf.st_size + 1, sizeof(char)); + fread(data, sizeof(char), statbuf.st_size, fd); + lex(data); + + size_t line_no = 1; + for (struct lexeme *l = LEXEMES; l < (LEXEMES + N_LEXEMES); l++) { + for (; l->line_no > line_no; line_no++) + printf("\n"); + printf("%s ", l->string); + } + printf("\n"); + return 0; +} diff --git a/static-analysis/helper_scripts/lexer_tests.c b/static-analysis/helper_scripts/lexer_tests.c new file mode 100644 index 0000000..f19d283 --- /dev/null +++ b/static-analysis/helper_scripts/lexer_tests.c @@ -0,0 +1,96 @@ +#include <stdio.h> +#include <string.h> +#include <assert.h> +#include "compiler.h" + +void (test_case)(char *string, struct lexeme *lexs, int n_lexs) { + printf("Testing '%s'...\n", string); + + N_LEXEMES = 0; + lex(string); + + assert(N_LEXEMES == n_lexs); + for (size_t i = 0; i < N_LEXEMES; i++) { + assert(!strcmp(LEXEMES[i].string, lexs[i].string)); + assert(LEXEMES[i].label == lexs[i].label); + assert(LEXEMES[i].line_no == lexs[i].line_no); + } + + printf("\tPassed!\n"); +} + +#define test_case(str, ...) \ + (test_case)( \ + strdup(str), \ + (struct lexeme[]){__VA_ARGS__}, \ + sizeof((struct lexeme[]){__VA_ARGS__})/sizeof(struct lexeme)) + + +int main() { + test_case( + "int x = 5;", + (struct lexeme){"int", LEX_IDENT, 1,}, + (struct lexeme){"x", LEX_IDENT, 1,}, + (struct lexeme){"=", LEX_OP, 1,}, + (struct lexeme){"5", LEX_NUM_LIT,1,}, + (struct lexeme){";", LEX_OP, 1,}, + ); + + test_case( + "int x = /* foo=bar */ 5;", + (struct lexeme){"int", LEX_IDENT, 1,}, + (struct lexeme){"x", LEX_IDENT, 1,}, + (struct lexeme){"=", LEX_OP, 1,}, + (struct lexeme){"5", LEX_NUM_LIT,1,}, + (struct lexeme){";", LEX_OP, 1,}, + ); + + test_case( + "int x=5;", + (struct lexeme){"int", LEX_IDENT, 1,}, + (struct lexeme){"x", LEX_IDENT, 1,}, + (struct lexeme){"=", LEX_OP, 1,}, + (struct lexeme){"5", LEX_NUM_LIT,1,}, + (struct lexeme){";", LEX_OP, 1,}, + ); + + test_case( + "int x=5 ;", + (struct lexeme){"int", LEX_IDENT, 1,}, + (struct lexeme){"x", LEX_IDENT, 1,}, + (struct lexeme){"=", LEX_OP, 1,}, + (struct lexeme){"5", LEX_NUM_LIT,1,}, + (struct lexeme){";", LEX_OP, 1,}, + ); + + test_case( + "x->foo", + (struct lexeme){"x", LEX_IDENT, 1,}, + (struct lexeme){"->", LEX_OP, 1,}, + (struct lexeme){"foo",LEX_IDENT, 1,}, + ); + + test_case( + "x<<foo", + (struct lexeme){"x", LEX_IDENT, 1,}, + (struct lexeme){"<<", LEX_OP, 1,}, + (struct lexeme){"foo",LEX_IDENT, 1,}, + ); + + test_case( + "x|=foo", + (struct lexeme){"x", LEX_IDENT, 1,}, + (struct lexeme){"|=", LEX_OP, 1,}, + (struct lexeme){"foo",LEX_IDENT, 1,}, + ); + + test_case( + "x|=foo// hello\nthere", + (struct lexeme){"x", LEX_IDENT, 1,}, + (struct lexeme){"|=", LEX_OP, 1,}, + (struct lexeme){"foo", LEX_IDENT, 1,}, + (struct lexeme){"there",LEX_IDENT, 2,}, + ); + + return 0; +} diff --git a/static-analysis/lexer.c b/static-analysis/lexer.c new file mode 100644 index 0000000..2c64ab7 --- /dev/null +++ b/static-analysis/lexer.c @@ -0,0 +1,59 @@ +#include <assert.h> +#include <string.h> +#include <ctype.h> +#include "compiler.h" + +struct lexeme LEXEMES[MAX_LEXEMES] = {0}; +size_t N_LEXEMES = 0; + +void lex(char *s) { + for (char *ptr = s; *ptr; ptr++) + *ptr = tolower(*ptr); + + char *LAST_LINE = s; + size_t LAST_LINE_NO = 1; + for (; *s; s++) { + enum lex_label label = LEX_NONE; + char *start = s; + // TODO: at the very least, also need to lex here: string literals, + // character literals, hex literals, int literals, identifiers. + // Note in these examples below, the first four are cases where we + // throw away some characters (indicated by label = LEX_NONE). In the + // final example we lex operation characters like [ and !=. + assert(!"unimplemented"); + if (isspace(*s)); + else if (prefix(s, "/*")) { + for (; *s && !prefix(s, "*/"); s++); + if (*s) s++; + } else if (prefix(s, "//")) { + for (; *s && *s != '\n'; s++); + } else if (s[0] == '#') { + for (; *s && *s != '\n'; s++) + s += (*s == '\\'); + } else { + label = LEX_OP; + if (strchr("()[]{}.:?,;", *s)) + s++; + else if (prefix(s, "->")) + s += 2; + else if (strchr("-+&|", *s) && *s == s[1]) + s += 2; + else if (prefix(s, "<<") || prefix(s, ">>")) + s += 2 + (s[2] == '='); + else + s += 1 + (s[1] == '='); + } + // NOTE: This shared code builds the lexeme for you & inserts it into + // the array of lexemes. Basically, you need to point @s to one-past + // the last character you want to be part of the lexeme, and set @label + // to whatever label you want it to have. + if (label == LEX_NONE) continue; + assert(N_LEXEMES < sizeof(LEXEMES) / sizeof(LEXEMES[0])); + LEXEMES[N_LEXEMES].string = strndup(start, (size_t)(s - start)); + LEXEMES[N_LEXEMES].label = label; + for (; LAST_LINE != start; LAST_LINE++) + LAST_LINE_NO += (*LAST_LINE == '\n'); + LEXEMES[N_LEXEMES++].line_no = LAST_LINE_NO; + s--; + } +} diff --git a/static-analysis/main.c b/static-analysis/main.c new file mode 100644 index 0000000..8d3f90e --- /dev/null +++ b/static-analysis/main.c @@ -0,0 +1,24 @@ +////// NOTE: you don't need to modify this file ////// +#include <string.h> +#include <stddef.h> +#include <stdio.h> +#include <stdlib.h> +#include "compiler.h" + +int main(int argc, char **argv) { + PATH = argv[1]; + + // Read the entire file + struct stat statbuf; + stat(PATH, &statbuf); + + FILE *fd = fopen(PATH, "r"); + char *data = calloc(statbuf.st_size + 1, sizeof(char)); + fread(data, sizeof(char), statbuf.st_size, fd); + + // Do the lexing + lex(data); + + // Then process the lexed program + process_program(); +} diff --git a/static-analysis/prelab/.gitignore b/static-analysis/prelab/.gitignore new file mode 100644 index 0000000..e1bb0e0 --- /dev/null +++ b/static-analysis/prelab/.gitignore @@ -0,0 +1,2 @@ +main +main.staff.c diff --git a/static-analysis/prelab/HINTS b/static-analysis/prelab/HINTS new file mode 100644 index 0000000..960e460 --- /dev/null +++ b/static-analysis/prelab/HINTS @@ -0,0 +1,63 @@ +#### visit example +Take the following IR program: + + 1 D 100 + 2 B 100 3 4 + 3 K 100 + 4 B 0 2 2 + +This corresponds roughly to the C code: + + L1: *x; + L2: while (x) + L3: x = rand(); + +First, notice that this is *not* a bug: there are some paths along which 100/x +is dereferenced before reaching the branch (namely, 1->2 in the IR and L1->L2 +in the C) and other branches where its value is *not* dereferenced first +(namely, 1->2->3->4->2 and L1->L2->L3->L2). + +The prelab tool only sees the IR. The main() function makes the initial call +to visit for you, giving it the first instruction and an empty exprmap. For +brevity, I'll write this as: + + visit(1, {}) + +From here on out, the operation of visit looks like this: + + visit(1, {}) + | 1.always_derefed = {} + | visit(2, {100}) + | | 2.always_derefed = {100} + | | visit(3, {100}) + | | | 3.always_derefed = {100} + | | | visit(4, {}) + | | | | 4.always_derefed = {} + | | | | visit(2, {}) + | | | | | 2.always_derefed = intersect({100}, {}) = {} + | | | | | visit(3, {}) + | | | | | | 3.always_derefed = intersect({100}, {}) = {} + | | | | | | visit(4, {}) + | | | | | | | return bc 4.always_derefed <= {} + | | | | | | visit(NULL, {}) + | | | | | | | return bc NULL + | | | | | visit(4, {}) + | | | | | | return bc 4.always_derefed <= {} + | | | | visit(2, {}) + | | | | | return bc 2.always_derefed <= {} + | | | visit(NULL, {100}) + | | | | return bc NULL + | | visit(4, {100}) + | | | return bc 4.always_derefed <= {100} + | visit(NULL, {100}) + | | return bc NULL + +It's important to note a few things: +1. Each branch in this trace corresponds to a path through the original IR + program. +2. We sometimes reach "NULL", because non-branch instructions have only one + place they can go after executing (you could also check for NULL before + recursing). +3. If always_derefed is a subset of the expressions derefed along this path, we + know that we're not going to learn anything new along this path that we + didn't already learn along another path, so we can immediately return. diff --git a/static-analysis/prelab/Makefile b/static-analysis/prelab/Makefile new file mode 100644 index 0000000..4aeaf0d --- /dev/null +++ b/static-analysis/prelab/Makefile @@ -0,0 +1,6 @@ +CFLAGS += -g +CFLAGS += -O3 +CFLAGS += -Wall +# CFLAGS += -fsanitize=address + +main: main.c diff --git a/static-analysis/prelab/README b/static-analysis/prelab/README new file mode 100644 index 0000000..43dc73d --- /dev/null +++ b/static-analysis/prelab/README @@ -0,0 +1,191 @@ +##### Ultimate Lab Goal +As you've learned in this class, it's hard to write C correctly. And operating +systems are huge C projects. In this lab we're going to implement a simple +static checker that will help us automatically search for bugs in huge C +projects. Our checker will find C code that looks like this: + + *x = 5; + if (x) + return; + +This code indicates a bug, because on the first line you dereference $x$ (i.e., +requiring that it is non-null) then on the second line you check if $x$ is null +or not (i.e., asserting a belief that it may be null). One of these beliefs +must be wrong. + +We're going to vaguely be implementing a small part of this: +https://mlfbrown.com/paper.pdf + +##### How to do it? +Given a function, our game plan is the following: + + - Take every possible path through the function. + - During the path, track what expressions *must* be non-null because we've + dereferenced them earlier in the path. + - At each program point, record what expressions must be non-null along + *every* path that reaches that point. + - Finally, look at each branch point and report an error if it is branching + on an expression that must be non-null along every path that reaches that + point. + +##### Prelab Setup +For this prelab, we're going to start by implementing this analysis on a +simplified intermediate representation (IR) instead of C. Then, for the main +lab, we'll write a compiler from C to this IR. + +A program in our IR has one instruction per line. Everything after the +instruction on a given line is ignored (think of those as comments or +metadata). + +The IR has three instructions: + + $label B $expression $label_true $label_false [ignored until \n] + $label K $expression [ignored until \n] + $label D $expression [ignored until \n] + +In particular: + + - Every instruction has a "$label" think of this as a pc or line number + - "B" means BRANCH, "K" means KILL, and "D" means DEREF + - Labels and expressions are both represented as uint64_ts + - "$l B $e $t $f" corresponds to "if ($e) goto $t else goto $f" + - "$l K $e" corresponds to "$e = rand();" + - "$l D $e" corresponds to "*$e;" + +The C example above will become (roughly) this IR: + + 1 D 100 1 + 2 B 100 3 4 2 + 3 K 0 3 + 4 K 0 3 + +Here we arbitrarily chose "100" to be the id representing the expression "x", +and 0 is a dummy expression so that "K 0" always acts like a no-op. Note we're +using uint64_ts to represent expressions like "x" because uint64_ts are much +nicer to deal with in C than strings. The compiler that we write for lab will +use hash("x") as the expression id. + +The rightmost number is IGNORED by your code here; it indicates the line number +in the original program and will only be used by a final wrapper script that +pretty-prints the results. We will only worry about this during the main lab. + +Once again, for now, don't worry about where these programs come from: we'll +write a compiler from C to this IR during lab. Then scripts will link up the +output of the IR checker with the original source code to pretty-print the +resulting bugs. + +Internally, an instruction like "2 B 100 3 4" is represented as a struct instr, +where .label = 2, .opcode = OPCODE_BRANCH, and .args = {100, 3, 4}. + +##### Prelab/Lab Part 1 +Your job is to write the program analysis for the simple IR described above. +Some starter code for parsing the IR is given in main.c. You should be able to +implement everything in <200loc. The vast majority of the code is just +implementing the exprmap data structure: + + STRUCT EXPRMAP: + - A struct exprmap is a map from uint64_t -> uint64_t. The keys ("exprs") + will represent expressions that we know to be non-null, while the values + ("deref_labels") will represent the label that those expressions were + first dereferenced on. + - Exprmaps are usually pretty small, so we implement them as a pair of + dynamic arrays + - lookup_exprmap, insert_exprmap, remove_exprmap do what they sound like. + Note you should always return a fresh exprmap if you change anything; + NEVER MODIFY exprmaps IN-PLACE! Note that because you never modify + exprmaps in-place, copying exprmaps is super easy: just copy the struct! + - intersect_exprmap intersects the keys (exprs); you can take the value + (deref_label) from either one. + - subset_exprmap returns true iff the keys of "small" are all also keys of + "big" + +Now, you should be able to implement visit. At a high-level, visit is supposed +to statically execute a single instruction along a path through the program: + + - the entire overall point of visit is to compute instr->always_derefed for + every (reachable) instruction in the program. instr->always_derefed + should hold an exprmap of expressions that are known to be non-null along + every path to @instr, i.e., expressions that are always dereferenced + before reaching @instr. + - visit takes the instruction to be executed next (@instr) along with an + exprset of expressions that have been dereferenced along this path + (@derefed). + - it then updates the "always_derefed" exprmap on @instr, which is supposed + to represent the expressions that are *always* dereferenced along every + path we've seen to this node. + - it computes the new @derefed to use for the rest of this path after + executing this instruction. + - then it recurses on all the possible instructions we could execute next + along this path. + +The comments should tell you pretty much what to do. Two important things to +take advantage of to make sure you don't get infinite recursion: + + 1. We only care about expressions that are known to be non-null along + *EVERY* path to this instruction. So if the last time you visited some + instruction you had expressions 1 and 2 non-null, then on the current + path to that instruction you have expressions 2 and 3 non-null, you + should treat it as if only 2 is non-null. + 2. The entire behavior of the visit function is determined by (1) the + instruction passed in the first argument, and (2) the exprset of + non-nulls passed in the second argument. So if the last time you visited + a particular instruction you had expressions 1 and 2 non-null, and along + this current path you re-visit the instruction again with expressions 1 + and 2 non-null, you can immediately return (this call is memoized). + +Think carefully about in what order to apply hints (1) and (2). Write some +example programs for yourself that use loops and think about how the +computation proceeds & when you can terminate the recursion without ignoring +possible paths. + +Some things to keep in mind: + + - We want to minimize the number of false reports. If you think about it, + that means you can safely "forget" that things have been dereferenced. + This is safe because we only report an error if we always dereference a + value before we check it, so if we forget about a dereference we will + only ever forget to report an error, not report a fake error. + - Because of that, you should feel free to pretty liberally intersect + derefed (the set of expressions dereferenced along this path) and + instr->always_derefed (the set of expressions that are derefed along + every path to this instruction that we've seen so far). + - Finally, please remember that visit(instr, derefed) is a *recursive + function*: it's supposed to process a single instruction at a time, then + recurse on the possible next instructions. This means that you can + memoize it: if instr->always_derefed is identical to derefed, that means + you've already visited @vist with the same arguments, so you can + immediately return without recursing. + +If you have trouble with visit, you can take a look at HINTS, which shows a +trace of visit's execution on a simple IR program. + +##### Testing +There's a super dumb test case in test.prog. You should be able to run: + + $ cat test_inputs/test.prog + 1 D 123 + 2 B 1 3 3 + 3 B 123 1 4 + 4 D 100 + 5 K 100 + 6 B 100 7 7 + 7 D 100 + 8 B 100 7 7 + $ cat test_inputs/test.prog | ./main + 7:8 + 1:3 + +Every line in the output indicates a bug, i.e., some expression was branched on +even though it is dereferenced along every path to that branch. The first +number is the label of the deref instructions, the second is the label of the +branch instruction. Note that 4:6 is NOT a bug, because the value of 100 was +overwritten ("killed") at label 5. + +I've also posted two files compiled from Linux here: + + $ cat test_inputs/linux1.prog | ./main + $ cat test_inputs/linux2.prog | ./main + 28:35 + +### Bugs +make sure to kill all dups or don't insert dups diff --git a/static-analysis/prelab/main.c b/static-analysis/prelab/main.c new file mode 100644 index 0000000..b46a77e --- /dev/null +++ b/static-analysis/prelab/main.c @@ -0,0 +1,145 @@ +#include <stdio.h> +#include <stdlib.h> +#include <search.h> +#include <stdint.h> +#include <assert.h> +#include <string.h> + +enum opcode { + OPCODE_BRANCH = 'B', + OPCODE_KILL = 'K', + OPCODE_DEREF = 'D', +}; + +struct exprmap { + uint64_t *exprs, *deref_labels; + size_t n_exprs; +}; + +// each of these should be ~5-10loc for a basic implementation. if you want to +// go crazy, try keeping it sorted & using binary search (only once you have +// everything working initially!). +uint64_t lookup_exprmap(const struct exprmap set, uint64_t expr) { + // you can return 0 if you don't find anything + assert(!"unimplemented"); +} + +struct exprmap insert_exprmap(const struct exprmap old, uint64_t expr, uint64_t deref_label) { + assert(!"unimplemented"); +} + +struct exprmap remove_exprmap(const struct exprmap old, uint64_t expr) { + assert(!"unimplemented"); +} + +int subset_exprmap(const struct exprmap small, const struct exprmap big) { + assert(!"unimplemented"); +} + +struct exprmap intersect_exprmaps(const struct exprmap small, const struct exprmap big) { + assert(!"unimplemented"); +} + +struct instr { + uint64_t label; + enum opcode opcode; + uint64_t args[3]; + struct instr *nexts[2]; + + int visited; + struct exprmap always_derefed; +}; + +void visit(struct instr *instr, struct exprmap derefed) { + // Update instr->visited, instr->always_derefed, derefed, or return as + // needed for each of the following cases: + // (1) instr is NULL + // (2) this is the first path to reach instr + // (3) along every prior path to @instr every expression in @derefed has + // been derefed + // (4) there are some expressions in instr->always_derefed that are not in + // @derefed along this path + // should be about 10loc total; use the data structure operations you + // implemented above! + assert(!"unimplemented"); + derefed = instr->always_derefed; // feel free to remove if your sln doesn't need this + + // now actually process the instruction: + // (1) if it's a kill, then we no longer know anything about instr->args[0] + // (2) if it's a deref, then we should remember that instr->args[0] has + // been derefed for the remainder of this path (at least, until it's + // killed later on) + assert(!"unimplemented"); + + // now recurse on the possible next-instructions. we visit nexts[1] first + // out of superstition (it's more likely to be NULL and we want to do the + // most work in the tail recursive call) + visit(instr->nexts[1], derefed); + visit(instr->nexts[0], derefed); +} + +void check(struct instr *instr) { + if (!instr || instr->opcode != OPCODE_BRANCH) return; + if (!lookup_exprmap(instr->always_derefed, instr->args[0])) return; + printf("%lu:%lu\n", lookup_exprmap(instr->always_derefed, instr->args[0]), + instr->label); +} + +int main() { + // you don't need to modify any of this; it just parses the input IR, then + // calls visit on the first instruction, then calls check on every + // instruction. + struct instr *head = NULL; + size_t n_instructions = 0, max_label = 0; + while (!feof(stdin)) { + struct instr *new = calloc(1, sizeof(*new)); + char opcode; + if (scanf(" %lu %c", &(new->label), &opcode) != 2) { + // if this is failing unexpectedly, and you're on a Mac, maybe just + // remove it? still seemed to work for Manya + assert(feof(stdin)); + break; + } + new->opcode = opcode; + int n_args = (new->opcode == OPCODE_BRANCH) ? 3 : 1; + for (size_t i = 0; i < n_args; i++) + assert(scanf(" %lu", &(new->args[i])) == 1); + new->nexts[0] = head; + head = new; + n_instructions++; + if (new->label > max_label) max_label = new->label; + while (!feof(stdin) && fgetc(stdin) != '\n') continue; + } + + size_t n_labels = max_label + 1; + struct instr **label2instr = calloc(n_labels, sizeof(*label2instr)); + + for (struct instr *instr = head; instr; instr = instr->nexts[0]) { + assert(!label2instr[instr->label]); + label2instr[instr->label] = instr; + } + + struct instr *new_head = NULL; + for (struct instr *instr = head; instr; ) { + struct instr *real_next = instr->nexts[0]; + instr->nexts[0] = new_head; + new_head = instr; + instr = real_next; + } + head = new_head; + + for (size_t i = 0; i < n_labels; i++) { + struct instr *instr = label2instr[i]; + if (instr && instr->opcode == OPCODE_BRANCH) { + if (!(label2instr[instr->args[1]]) || !(label2instr[instr->args[2]])) { + exit(1); + } + instr->nexts[0] = label2instr[instr->args[1]]; + instr->nexts[1] = label2instr[instr->args[2]]; + } + } + + visit(head, (struct exprmap){NULL, NULL, 0}); + for (size_t i = 0; i < n_labels; i++) + check(label2instr[i]); +} diff --git a/static-analysis/prelab/test_inputs/linux1.prog b/static-analysis/prelab/test_inputs/linux1.prog new file mode 100644 index 0000000..032ecce --- /dev/null +++ b/static-analysis/prelab/test_inputs/linux1.prog @@ -0,0 +1,40 @@ +3 D 193503915 99 +4 K 1194231000731398559 99 +6 D 193503915 100 +7 K 4387865597241821890 100 +11 K 193486004 105 +13 D 177673 108 +14 K 193504592 108 +19 B 193504592 16 17 109 +16 K 0 +21 B 0 1 1 0 +23 B 0 18 18 0 +17 K 0 +18 K 0 +25 D 177673 113 +26 K 193504592 113 +31 B 193504592 28 29 114 +28 K 0 +33 B 0 1 1 0 +35 B 0 30 30 0 +29 K 0 +30 K 0 +37 D 177673 118 +38 K 193504592 118 +43 B 193504592 40 41 120 +40 K 0 +45 B 0 1 1 0 +47 B 0 42 42 0 +41 K 0 +42 K 0 +49 D 177673 129 +50 K 193504592 129 +55 B 193504592 52 53 130 +52 K 0 +57 B 0 1 1 0 +59 B 0 54 54 0 +53 K 0 +54 K 0 +61 B 0 1 1 0 +63 D 177673 134 +1 K 0 diff --git a/static-analysis/prelab/test_inputs/linux2.prog b/static-analysis/prelab/test_inputs/linux2.prog new file mode 100644 index 0000000..348e494 --- /dev/null +++ b/static-analysis/prelab/test_inputs/linux2.prog @@ -0,0 +1,38 @@ +5 K 6385072256 290 +10 B 15283469052120443381 7 8 291 +7 K 0 +12 B 0 1 1 0 +14 B 0 9 9 0 +8 K 0 +9 K 0 +16 K 249902112288397918 294 +17 K 193503915 294 +22 B 193503915 20 19 295 +19 K 0 +24 B 0 1 1 0 +26 B 0 21 21 0 +20 K 0 +21 K 0 +28 D 193503915 298 +29 K 249902112288397918 298 +30 K 249904109936926005 298 +35 B 193503915 33 32 299 +32 K 0 +37 B 0 1 1 0 +39 B 0 34 34 0 +33 K 0 +34 K 0 +41 D 193503915 302 +42 K 249902112288397918 302 +43 K 13920351217629824699 302 +44 K 13891158689926175282 302 +49 D 193503915 303 +50 B 5115118685804418151 46 47 303 +46 K 0 +52 B 0 1 1 0 +54 D 193503915 304 +55 B 0 48 48 0 +47 K 0 +48 K 0 +59 B 0 1 1 0 +1 K 0 diff --git a/static-analysis/prelab/test_inputs/test.prog b/static-analysis/prelab/test_inputs/test.prog new file mode 100644 index 0000000..e3330aa --- /dev/null +++ b/static-analysis/prelab/test_inputs/test.prog @@ -0,0 +1,8 @@ +1 D 123 +2 B 1 3 3 +3 B 123 1 4 +4 D 100 +5 K 100 +6 B 100 7 7 +7 D 100 +8 B 100 7 7 diff --git a/static-analysis/test_inputs/from_linux.c b/static-analysis/test_inputs/from_linux.c new file mode 100644 index 0000000..460c0cd --- /dev/null +++ b/static-analysis/test_inputs/from_linux.c @@ -0,0 +1,26 @@ +foo() { + if (foo) { + goto close_fds; + } else { + } +close_fds: + return; +} + +bar() { + redirect = (ifp && ifp->flags); + if (ifp) + in6_ifa_put(ifp); +} + +baz() { + goto unlock; + + queue_for_each_hw_ctx(foo) + { + break; + } + +unlock: + return; +} diff --git a/static-analysis/test_inputs/goto.c b/static-analysis/test_inputs/goto.c new file mode 100644 index 0000000..4bd1579 --- /dev/null +++ b/static-analysis/test_inputs/goto.c @@ -0,0 +1,8 @@ +static int foo(bar) { + if (bar) goto err; + if (baz < 0) { +err: + bad; + } + return bar; +} diff --git a/static-analysis/test_inputs/mlme.c b/static-analysis/test_inputs/mlme.c new file mode 100644 index 0000000..60792df --- /dev/null +++ b/static-analysis/test_inputs/mlme.c @@ -0,0 +1,7632 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * BSS client mode implementation + * Copyright 2003-2008, Jouni Malinen <j@w1.fi> + * Copyright 2004, Instant802 Networks, Inc. + * Copyright 2005, Devicescape Software, Inc. + * Copyright 2006-2007 Jiri Benc <jbenc@suse.cz> + * Copyright 2007, Michael Wu <flamingice@sourmilk.net> + * Copyright 2013-2014 Intel Mobile Communications GmbH + * Copyright (C) 2015 - 2017 Intel Deutschland GmbH + * Copyright (C) 2018 - 2023 Intel Corporation + */ + +#include <linux/delay.h> +#include <linux/fips.h> +#include <linux/if_ether.h> +#include <linux/skbuff.h> +#include <linux/if_arp.h> +#include <linux/etherdevice.h> +#include <linux/moduleparam.h> +#include <linux/rtnetlink.h> +#include <linux/crc32.h> +#include <linux/slab.h> +#include <linux/export.h> +#include <net/mac80211.h> +#include <asm/unaligned.h> + +#include "ieee80211_i.h" +#include "driver-ops.h" +#include "rate.h" +#include "led.h" +#include "fils_aead.h" + +#define IEEE80211_AUTH_TIMEOUT (HZ / 5) +#define IEEE80211_AUTH_TIMEOUT_LONG (HZ / 2) +#define IEEE80211_AUTH_TIMEOUT_SHORT (HZ / 10) +#define IEEE80211_AUTH_TIMEOUT_SAE (HZ * 2) +#define IEEE80211_AUTH_MAX_TRIES 3 +#define IEEE80211_AUTH_WAIT_ASSOC (HZ * 5) +#define IEEE80211_AUTH_WAIT_SAE_RETRY (HZ * 2) +#define IEEE80211_ASSOC_TIMEOUT (HZ / 5) +#define IEEE80211_ASSOC_TIMEOUT_LONG (HZ / 2) +#define IEEE80211_ASSOC_TIMEOUT_SHORT (HZ / 10) +#define IEEE80211_ASSOC_MAX_TRIES 3 + +static int max_nullfunc_tries = 2; +module_param(max_nullfunc_tries, int, 0644); +MODULE_PARM_DESC(max_nullfunc_tries, + "Maximum nullfunc tx tries before disconnecting (reason 4)."); + +static int max_probe_tries = 5; +module_param(max_probe_tries, int, 0644); +MODULE_PARM_DESC(max_probe_tries, + "Maximum probe tries before disconnecting (reason 4)."); + +/* + * Beacon loss timeout is calculated as N frames times the + * advertised beacon interval. This may need to be somewhat + * higher than what hardware might detect to account for + * delays in the host processing frames. But since we also + * probe on beacon miss before declaring the connection lost + * default to what we want. + */ +static int beacon_loss_count = 7; +module_param(beacon_loss_count, int, 0644); +MODULE_PARM_DESC(beacon_loss_count, + "Number of beacon intervals before we decide beacon was lost."); + +/* + * Time the connection can be idle before we probe + * it to see if we can still talk to the AP. + */ +#define IEEE80211_CONNECTION_IDLE_TIME (30 * HZ) +/* + * Time we wait for a probe response after sending + * a probe request because of beacon loss or for + * checking the connection still works. + */ +static int probe_wait_ms = 500; +module_param(probe_wait_ms, int, 0644); +MODULE_PARM_DESC(probe_wait_ms, + "Maximum time(ms) to wait for probe response" + " before disconnecting (reason 4)."); + +/* + * How many Beacon frames need to have been used in average signal strength + * before starting to indicate signal change events. + */ +#define IEEE80211_SIGNAL_AVE_MIN_COUNT 4 + +/* + * Extract from the given disabled subchannel bitmap (raw format + * from the EHT Operation Element) the bits for the subchannel + * we're using right now. + */ +static u16 +ieee80211_extract_dis_subch_bmap(const struct ieee80211_eht_operation *eht_oper, + struct cfg80211_chan_def *chandef, u16 bitmap) +{ + struct ieee80211_eht_operation_info *info = (void *)eht_oper->optional; + struct cfg80211_chan_def ap_chandef = *chandef; + u32 ap_center_freq, local_center_freq; + u32 ap_bw, local_bw; + int ap_start_freq, local_start_freq; + u16 shift, mask; + + if (!(eht_oper->params & IEEE80211_EHT_OPER_INFO_PRESENT) || + !(eht_oper->params & + IEEE80211_EHT_OPER_DISABLED_SUBCHANNEL_BITMAP_PRESENT)) + return 0; + + /* set 160/320 supported to get the full AP definition */ + ieee80211_chandef_eht_oper(eht_oper, true, true, &ap_chandef); + ap_center_freq = ap_chandef.center_freq1; + ap_bw = 20 * BIT(u8_get_bits(info->control, + IEEE80211_EHT_OPER_CHAN_WIDTH)); + ap_start_freq = ap_center_freq - ap_bw / 2; + local_center_freq = chandef->center_freq1; + local_bw = 20 * BIT(ieee80211_chan_width_to_rx_bw(chandef->width)); + local_start_freq = local_center_freq - local_bw / 2; + shift = (local_start_freq - ap_start_freq) / 20; + mask = BIT(local_bw / 20) - 1; + + return (bitmap >> shift) & mask; +} + +/* + * Handle the puncturing bitmap, possibly downgrading bandwidth to get a + * valid bitmap. + */ +static void +ieee80211_handle_puncturing_bitmap(struct ieee80211_link_data *link, + const struct ieee80211_eht_operation *eht_oper, + u16 bitmap, u64 *changed) +{ + struct cfg80211_chan_def *chandef = &link->conf->chandef; + u16 extracted; + u64 _changed = 0; + + if (!changed) + changed = &_changed; + + while (chandef->width > NL80211_CHAN_WIDTH_40) { + extracted = + ieee80211_extract_dis_subch_bmap(eht_oper, chandef, + bitmap); + + if (cfg80211_valid_disable_subchannel_bitmap(&bitmap, + chandef)) + break; + link->u.mgd.conn_flags |= + ieee80211_chandef_downgrade(chandef); + *changed |= BSS_CHANGED_BANDWIDTH; + } + + if (chandef->width <= NL80211_CHAN_WIDTH_40) + extracted = 0; + + if (link->conf->eht_puncturing != extracted) { + link->conf->eht_puncturing = extracted; + *changed |= BSS_CHANGED_EHT_PUNCTURING; + } +} + +/* + * We can have multiple work items (and connection probing) + * scheduling this timer, but we need to take care to only + * reschedule it when it should fire _earlier_ than it was + * asked for before, or if it's not pending right now. This + * function ensures that. Note that it then is required to + * run this function for all timeouts after the first one + * has happened -- the work that runs from this timer will + * do that. + */ +static void run_again(struct ieee80211_sub_if_data *sdata, + unsigned long timeout) +{ + sdata_assert_lock(sdata); + + if (!timer_pending(&sdata->u.mgd.timer) || + time_before(timeout, sdata->u.mgd.timer.expires)) + mod_timer(&sdata->u.mgd.timer, timeout); +} + +void ieee80211_sta_reset_beacon_monitor(struct ieee80211_sub_if_data *sdata) +{ + if (sdata->vif.driver_flags & IEEE80211_VIF_BEACON_FILTER) + return; + + if (ieee80211_hw_check(&sdata->local->hw, CONNECTION_MONITOR)) + return; + + mod_timer(&sdata->u.mgd.bcn_mon_timer, + round_jiffies_up(jiffies + sdata->u.mgd.beacon_timeout)); +} + +void ieee80211_sta_reset_conn_monitor(struct ieee80211_sub_if_data *sdata) +{ + struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; + + if (unlikely(!ifmgd->associated)) + return; + + if (ifmgd->probe_send_count) + ifmgd->probe_send_count = 0; + + if (ieee80211_hw_check(&sdata->local->hw, CONNECTION_MONITOR)) + return; + + mod_timer(&ifmgd->conn_mon_timer, + round_jiffies_up(jiffies + IEEE80211_CONNECTION_IDLE_TIME)); +} + +static int ecw2cw(int ecw) +{ + return (1 << ecw) - 1; +} + +static ieee80211_conn_flags_t +ieee80211_determine_chantype(struct ieee80211_sub_if_data *sdata, + struct ieee80211_link_data *link, + ieee80211_conn_flags_t conn_flags, + struct ieee80211_supported_band *sband, + struct ieee80211_channel *channel, + u32 vht_cap_info, + const struct ieee80211_ht_operation *ht_oper, + const struct ieee80211_vht_operation *vht_oper, + const struct ieee80211_he_operation *he_oper, + const struct ieee80211_eht_operation *eht_oper, + const struct ieee80211_s1g_oper_ie *s1g_oper, + struct cfg80211_chan_def *chandef, bool tracking) +{ + struct cfg80211_chan_def vht_chandef; + struct ieee80211_sta_ht_cap sta_ht_cap; + ieee80211_conn_flags_t ret; + u32 ht_cfreq; + + memset(chandef, 0, sizeof(struct cfg80211_chan_def)); + chandef->chan = channel; + chandef->width = NL80211_CHAN_WIDTH_20_NOHT; + chandef->center_freq1 = channel->center_freq; + chandef->freq1_offset = channel->freq_offset; + + if (channel->band == NL80211_BAND_6GHZ) { + if (!ieee80211_chandef_he_6ghz_oper(sdata, he_oper, eht_oper, + chandef)) { + mlme_dbg(sdata, + "bad 6 GHz operation, disabling HT/VHT/HE/EHT\n"); + ret = IEEE80211_CONN_DISABLE_HT | + IEEE80211_CONN_DISABLE_VHT | + IEEE80211_CONN_DISABLE_HE | + IEEE80211_CONN_DISABLE_EHT; + } else { + ret = 0; + } + vht_chandef = *chandef; + goto out; + } else if (sband->band == NL80211_BAND_S1GHZ) { + if (!ieee80211_chandef_s1g_oper(s1g_oper, chandef)) { + sdata_info(sdata, + "Missing S1G Operation Element? Trying operating == primary\n"); + chandef->width = ieee80211_s1g_channel_width(channel); + } + + ret = IEEE80211_CONN_DISABLE_HT | IEEE80211_CONN_DISABLE_40MHZ | + IEEE80211_CONN_DISABLE_VHT | + IEEE80211_CONN_DISABLE_80P80MHZ | + IEEE80211_CONN_DISABLE_160MHZ; + goto out; + } + + memcpy(&sta_ht_cap, &sband->ht_cap, sizeof(sta_ht_cap)); + ieee80211_apply_htcap_overrides(sdata, &sta_ht_cap); + + if (!ht_oper || !sta_ht_cap.ht_supported) { + mlme_dbg(sdata, "HT operation missing / HT not supported\n"); + ret = IEEE80211_CONN_DISABLE_HT | + IEEE80211_CONN_DISABLE_VHT | + IEEE80211_CONN_DISABLE_HE | + IEEE80211_CONN_DISABLE_EHT; + goto out; + } + + chandef->width = NL80211_CHAN_WIDTH_20; + + ht_cfreq = ieee80211_channel_to_frequency(ht_oper->primary_chan, + channel->band); + /* check that channel matches the right operating channel */ + if (!tracking && channel->center_freq != ht_cfreq) { + /* + * It's possible that some APs are confused here; + * Netgear WNDR3700 sometimes reports 4 higher than + * the actual channel in association responses, but + * since we look at probe response/beacon data here + * it should be OK. + */ + sdata_info(sdata, + "Wrong control channel: center-freq: %d ht-cfreq: %d ht->primary_chan: %d band: %d - Disabling HT\n", + channel->center_freq, ht_cfreq, + ht_oper->primary_chan, channel->band); + ret = IEEE80211_CONN_DISABLE_HT | + IEEE80211_CONN_DISABLE_VHT | + IEEE80211_CONN_DISABLE_HE | + IEEE80211_CONN_DISABLE_EHT; + goto out; + } + + /* check 40 MHz support, if we have it */ + if (sta_ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40) { + ieee80211_chandef_ht_oper(ht_oper, chandef); + } else { + mlme_dbg(sdata, "40 MHz not supported\n"); + /* 40 MHz (and 80 MHz) must be supported for VHT */ + ret = IEEE80211_CONN_DISABLE_VHT; + /* also mark 40 MHz disabled */ + ret |= IEEE80211_CONN_DISABLE_40MHZ; + goto out; + } + + if (!vht_oper || !sband->vht_cap.vht_supported) { + mlme_dbg(sdata, "VHT operation missing / VHT not supported\n"); + ret = IEEE80211_CONN_DISABLE_VHT; + goto out; + } + + vht_chandef = *chandef; + if (!(conn_flags & IEEE80211_CONN_DISABLE_HE) && + he_oper && + (le32_to_cpu(he_oper->he_oper_params) & + IEEE80211_HE_OPERATION_VHT_OPER_INFO)) { + struct ieee80211_vht_operation he_oper_vht_cap; + + /* + * Set only first 3 bytes (other 2 aren't used in + * ieee80211_chandef_vht_oper() anyway) + */ + memcpy(&he_oper_vht_cap, he_oper->optional, 3); + he_oper_vht_cap.basic_mcs_set = cpu_to_le16(0); + + if (!ieee80211_chandef_vht_oper(&sdata->local->hw, vht_cap_info, + &he_oper_vht_cap, ht_oper, + &vht_chandef)) { + if (!(conn_flags & IEEE80211_CONN_DISABLE_HE)) + sdata_info(sdata, + "HE AP VHT information is invalid, disabling HE\n"); + ret = IEEE80211_CONN_DISABLE_HE | IEEE80211_CONN_DISABLE_EHT; + goto out; + } + } else if (!ieee80211_chandef_vht_oper(&sdata->local->hw, + vht_cap_info, + vht_oper, ht_oper, + &vht_chandef)) { + if (!(conn_flags & IEEE80211_CONN_DISABLE_VHT)) + sdata_info(sdata, + "AP VHT information is invalid, disabling VHT\n"); + ret = IEEE80211_CONN_DISABLE_VHT; + goto out; + } + + if (!cfg80211_chandef_valid(&vht_chandef)) { + if (!(conn_flags & IEEE80211_CONN_DISABLE_VHT)) + sdata_info(sdata, + "AP VHT information is invalid, disabling VHT\n"); + ret = IEEE80211_CONN_DISABLE_VHT; + goto out; + } + + if (cfg80211_chandef_identical(chandef, &vht_chandef)) { + ret = 0; + goto out; + } + + if (!cfg80211_chandef_compatible(chandef, &vht_chandef)) { + if (!(conn_flags & IEEE80211_CONN_DISABLE_VHT)) + sdata_info(sdata, + "AP VHT information doesn't match HT, disabling VHT\n"); + ret = IEEE80211_CONN_DISABLE_VHT; + goto out; + } + + *chandef = vht_chandef; + + /* + * handle the case that the EHT operation indicates that it holds EHT + * operation information (in case that the channel width differs from + * the channel width reported in HT/VHT/HE). + */ + if (eht_oper && (eht_oper->params & IEEE80211_EHT_OPER_INFO_PRESENT)) { + struct cfg80211_chan_def eht_chandef = *chandef; + + ieee80211_chandef_eht_oper(eht_oper, + eht_chandef.width == + NL80211_CHAN_WIDTH_160, + false, &eht_chandef); + + if (!cfg80211_chandef_valid(&eht_chandef)) { + if (!(conn_flags & IEEE80211_CONN_DISABLE_EHT)) + sdata_info(sdata, + "AP EHT information is invalid, disabling EHT\n"); + ret = IEEE80211_CONN_DISABLE_EHT; + goto out; + } + + if (!cfg80211_chandef_compatible(chandef, &eht_chandef)) { + if (!(conn_flags & IEEE80211_CONN_DISABLE_EHT)) + sdata_info(sdata, + "AP EHT information is incompatible, disabling EHT\n"); + ret = IEEE80211_CONN_DISABLE_EHT; + goto out; + } + + *chandef = eht_chandef; + } + + ret = 0; + +out: + /* + * When tracking the current AP, don't do any further checks if the + * new chandef is identical to the one we're currently using for the + * connection. This keeps us from playing ping-pong with regulatory, + * without it the following can happen (for example): + * - connect to an AP with 80 MHz, world regdom allows 80 MHz + * - AP advertises regdom US + * - CRDA loads regdom US with 80 MHz prohibited (old database) + * - the code below detects an unsupported channel, downgrades, and + * we disconnect from the AP in the caller + * - disconnect causes CRDA to reload world regdomain and the game + * starts anew. + * (see https://bugzilla.kernel.org/show_bug.cgi?id=70881) + * + * It seems possible that there are still scenarios with CSA or real + * bandwidth changes where a this could happen, but those cases are + * less common and wouldn't completely prevent using the AP. + */ + if (tracking && + cfg80211_chandef_identical(chandef, &link->conf->chandef)) + return ret; + + /* don't print the message below for VHT mismatch if VHT is disabled */ + if (ret & IEEE80211_CONN_DISABLE_VHT) + vht_chandef = *chandef; + + /* + * Ignore the DISABLED flag when we're already connected and only + * tracking the APs beacon for bandwidth changes - otherwise we + * might get disconnected here if we connect to an AP, update our + * regulatory information based on the AP's country IE and the + * information we have is wrong/outdated and disables the channel + * that we're actually using for the connection to the AP. + */ + while (!cfg80211_chandef_usable(sdata->local->hw.wiphy, chandef, + tracking ? 0 : + IEEE80211_CHAN_DISABLED)) { + if (WARN_ON(chandef->width == NL80211_CHAN_WIDTH_20_NOHT)) { + ret = IEEE80211_CONN_DISABLE_HT | + IEEE80211_CONN_DISABLE_VHT | + IEEE80211_CONN_DISABLE_HE | + IEEE80211_CONN_DISABLE_EHT; + break; + } + + ret |= ieee80211_chandef_downgrade(chandef); + } + + if (!he_oper || !cfg80211_chandef_usable(sdata->wdev.wiphy, chandef, + IEEE80211_CHAN_NO_HE)) + ret |= IEEE80211_CONN_DISABLE_HE | IEEE80211_CONN_DISABLE_EHT; + + if (!eht_oper || !cfg80211_chandef_usable(sdata->wdev.wiphy, chandef, + IEEE80211_CHAN_NO_EHT)) + ret |= IEEE80211_CONN_DISABLE_EHT; + + if (chandef->width != vht_chandef.width && !tracking) + sdata_info(sdata, + "capabilities/regulatory prevented using AP HT/VHT configuration, downgraded\n"); + + WARN_ON_ONCE(!cfg80211_chandef_valid(chandef)); + return ret; +} + +static int ieee80211_config_bw(struct ieee80211_link_data *link, + const struct ieee80211_ht_cap *ht_cap, + const struct ieee80211_vht_cap *vht_cap, + const struct ieee80211_ht_operation *ht_oper, + const struct ieee80211_vht_operation *vht_oper, + const struct ieee80211_he_operation *he_oper, + const struct ieee80211_eht_operation *eht_oper, + const struct ieee80211_s1g_oper_ie *s1g_oper, + const u8 *bssid, u64 *changed) +{ + struct ieee80211_sub_if_data *sdata = link->sdata; + struct ieee80211_local *local = sdata->local; + struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; + struct ieee80211_channel *chan = link->conf->chandef.chan; + struct ieee80211_supported_band *sband = + local->hw.wiphy->bands[chan->band]; + struct cfg80211_chan_def chandef; + u16 ht_opmode; + ieee80211_conn_flags_t flags; + u32 vht_cap_info = 0; + int ret; + + /* if HT was/is disabled, don't track any bandwidth changes */ + if (link->u.mgd.conn_flags & IEEE80211_CONN_DISABLE_HT || !ht_oper) + return 0; + + /* don't check VHT if we associated as non-VHT station */ + if (link->u.mgd.conn_flags & IEEE80211_CONN_DISABLE_VHT) + vht_oper = NULL; + + /* don't check HE if we associated as non-HE station */ + if (link->u.mgd.conn_flags & IEEE80211_CONN_DISABLE_HE || + !ieee80211_get_he_iftype_cap(sband, + ieee80211_vif_type_p2p(&sdata->vif))) { + he_oper = NULL; + eht_oper = NULL; + } + + /* don't check EHT if we associated as non-EHT station */ + if (link->u.mgd.conn_flags & IEEE80211_CONN_DISABLE_EHT || + !ieee80211_get_eht_iftype_cap(sband, + ieee80211_vif_type_p2p(&sdata->vif))) + eht_oper = NULL; + + /* + * if bss configuration changed store the new one - + * this may be applicable even if channel is identical + */ + ht_opmode = le16_to_cpu(ht_oper->operation_mode); + if (link->conf->ht_operation_mode != ht_opmode) { + *changed |= BSS_CHANGED_HT; + link->conf->ht_operation_mode = ht_opmode; + } + + if (vht_cap) + vht_cap_info = le32_to_cpu(vht_cap->vht_cap_info); + + /* calculate new channel (type) based on HT/VHT/HE operation IEs */ + flags = ieee80211_determine_chantype(sdata, link, + link->u.mgd.conn_flags, + sband, chan, vht_cap_info, + ht_oper, vht_oper, + he_oper, eht_oper, + s1g_oper, &chandef, true); + + /* + * Downgrade the new channel if we associated with restricted + * capabilities. For example, if we associated as a 20 MHz STA + * to a 40 MHz AP (due to regulatory, capabilities or config + * reasons) then switching to a 40 MHz channel now won't do us + * any good -- we couldn't use it with the AP. + */ + if (link->u.mgd.conn_flags & IEEE80211_CONN_DISABLE_80P80MHZ && + chandef.width == NL80211_CHAN_WIDTH_80P80) + flags |= ieee80211_chandef_downgrade(&chandef); + if (link->u.mgd.conn_flags & IEEE80211_CONN_DISABLE_160MHZ && + chandef.width == NL80211_CHAN_WIDTH_160) + flags |= ieee80211_chandef_downgrade(&chandef); + if (link->u.mgd.conn_flags & IEEE80211_CONN_DISABLE_40MHZ && + chandef.width > NL80211_CHAN_WIDTH_20) + flags |= ieee80211_chandef_downgrade(&chandef); + + if (cfg80211_chandef_identical(&chandef, &link->conf->chandef)) + return 0; + + link_info(link, + "AP %pM changed bandwidth, new config is %d.%03d MHz, width %d (%d.%03d/%d MHz)\n", + link->u.mgd.bssid, chandef.chan->center_freq, + chandef.chan->freq_offset, chandef.width, + chandef.center_freq1, chandef.freq1_offset, + chandef.center_freq2); + + if (flags != (link->u.mgd.conn_flags & + (IEEE80211_CONN_DISABLE_HT | + IEEE80211_CONN_DISABLE_VHT | + IEEE80211_CONN_DISABLE_HE | + IEEE80211_CONN_DISABLE_EHT | + IEEE80211_CONN_DISABLE_40MHZ | + IEEE80211_CONN_DISABLE_80P80MHZ | + IEEE80211_CONN_DISABLE_160MHZ | + IEEE80211_CONN_DISABLE_320MHZ)) || + !cfg80211_chandef_valid(&chandef)) { + sdata_info(sdata, + "AP %pM changed caps/bw in a way we can't support (0x%x/0x%x) - disconnect\n", + link->u.mgd.bssid, flags, ifmgd->flags); + return -EINVAL; + } + + ret = ieee80211_link_change_bandwidth(link, &chandef, changed); + + if (ret) { + sdata_info(sdata, + "AP %pM changed bandwidth to incompatible one - disconnect\n", + link->u.mgd.bssid); + return ret; + } + + return 0; +} + +/* frame sending functions */ + +static void ieee80211_add_ht_ie(struct ieee80211_sub_if_data *sdata, + struct sk_buff *skb, u8 ap_ht_param, + struct ieee80211_supported_band *sband, + struct ieee80211_channel *channel, + enum ieee80211_smps_mode smps, + ieee80211_conn_flags_t conn_flags) +{ + u8 *pos; + u32 flags = channel->flags; + u16 cap; + struct ieee80211_sta_ht_cap ht_cap; + + BUILD_BUG_ON(sizeof(ht_cap) != sizeof(sband->ht_cap)); + + memcpy(&ht_cap, &sband->ht_cap, sizeof(ht_cap)); + ieee80211_apply_htcap_overrides(sdata, &ht_cap); + + /* determine capability flags */ + cap = ht_cap.cap; + + switch (ap_ht_param & IEEE80211_HT_PARAM_CHA_SEC_OFFSET) { + case IEEE80211_HT_PARAM_CHA_SEC_ABOVE: + if (flags & IEEE80211_CHAN_NO_HT40PLUS) { + cap &= ~IEEE80211_HT_CAP_SUP_WIDTH_20_40; + cap &= ~IEEE80211_HT_CAP_SGI_40; + } + break; + case IEEE80211_HT_PARAM_CHA_SEC_BELOW: + if (flags & IEEE80211_CHAN_NO_HT40MINUS) { + cap &= ~IEEE80211_HT_CAP_SUP_WIDTH_20_40; + cap &= ~IEEE80211_HT_CAP_SGI_40; + } + break; + } + + /* + * If 40 MHz was disabled associate as though we weren't + * capable of 40 MHz -- some broken APs will never fall + * back to trying to transmit in 20 MHz. + */ + if (conn_flags & IEEE80211_CONN_DISABLE_40MHZ) { + cap &= ~IEEE80211_HT_CAP_SUP_WIDTH_20_40; + cap &= ~IEEE80211_HT_CAP_SGI_40; + } + + /* set SM PS mode properly */ + cap &= ~IEEE80211_HT_CAP_SM_PS; + switch (smps) { + case IEEE80211_SMPS_AUTOMATIC: + case IEEE80211_SMPS_NUM_MODES: + WARN_ON(1); + fallthrough; + case IEEE80211_SMPS_OFF: + cap |= WLAN_HT_CAP_SM_PS_DISABLED << + IEEE80211_HT_CAP_SM_PS_SHIFT; + break; + case IEEE80211_SMPS_STATIC: + cap |= WLAN_HT_CAP_SM_PS_STATIC << + IEEE80211_HT_CAP_SM_PS_SHIFT; + break; + case IEEE80211_SMPS_DYNAMIC: + cap |= WLAN_HT_CAP_SM_PS_DYNAMIC << + IEEE80211_HT_CAP_SM_PS_SHIFT; + break; + } + + /* reserve and fill IE */ + pos = skb_put(skb, sizeof(struct ieee80211_ht_cap) + 2); + ieee80211_ie_build_ht_cap(pos, &ht_cap, cap); +} + +/* This function determines vht capability flags for the association + * and builds the IE. + * Note - the function returns true to own the MU-MIMO capability + */ +static bool ieee80211_add_vht_ie(struct ieee80211_sub_if_data *sdata, + struct sk_buff *skb, + struct ieee80211_supported_band *sband, + struct ieee80211_vht_cap *ap_vht_cap, + ieee80211_conn_flags_t conn_flags) +{ + struct ieee80211_local *local = sdata->local; + u8 *pos; + u32 cap; + struct ieee80211_sta_vht_cap vht_cap; + u32 mask, ap_bf_sts, our_bf_sts; + bool mu_mimo_owner = false; + + BUILD_BUG_ON(sizeof(vht_cap) != sizeof(sband->vht_cap)); + + memcpy(&vht_cap, &sband->vht_cap, sizeof(vht_cap)); + ieee80211_apply_vhtcap_overrides(sdata, &vht_cap); + + /* determine capability flags */ + cap = vht_cap.cap; + + if (conn_flags & IEEE80211_CONN_DISABLE_80P80MHZ) { + u32 bw = cap & IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_MASK; + + cap &= ~IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_MASK; + if (bw == IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ || + bw == IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160_80PLUS80MHZ) + cap |= IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ; + } + + if (conn_flags & IEEE80211_CONN_DISABLE_160MHZ) { + cap &= ~IEEE80211_VHT_CAP_SHORT_GI_160; + cap &= ~IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_MASK; + } + + /* + * Some APs apparently get confused if our capabilities are better + * than theirs, so restrict what we advertise in the assoc request. + */ + if (!(ap_vht_cap->vht_cap_info & + cpu_to_le32(IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE))) + cap &= ~(IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE | + IEEE80211_VHT_CAP_MU_BEAMFORMEE_CAPABLE); + else if (!(ap_vht_cap->vht_cap_info & + cpu_to_le32(IEEE80211_VHT_CAP_MU_BEAMFORMER_CAPABLE))) + cap &= ~IEEE80211_VHT_CAP_MU_BEAMFORMEE_CAPABLE; + + /* + * If some other vif is using the MU-MIMO capability we cannot associate + * using MU-MIMO - this will lead to contradictions in the group-id + * mechanism. + * Ownership is defined since association request, in order to avoid + * simultaneous associations with MU-MIMO. + */ + if (cap & IEEE80211_VHT_CAP_MU_BEAMFORMEE_CAPABLE) { + bool disable_mu_mimo = false; + struct ieee80211_sub_if_data *other; + + list_for_each_entry_rcu(other, &local->interfaces, list) { + if (other->vif.bss_conf.mu_mimo_owner) { + disable_mu_mimo = true; + break; + } + } + if (disable_mu_mimo) + cap &= ~IEEE80211_VHT_CAP_MU_BEAMFORMEE_CAPABLE; + else + mu_mimo_owner = true; + } + + mask = IEEE80211_VHT_CAP_BEAMFORMEE_STS_MASK; + + ap_bf_sts = le32_to_cpu(ap_vht_cap->vht_cap_info) & mask; + our_bf_sts = cap & mask; + + if (ap_bf_sts < our_bf_sts) { + cap &= ~mask; + cap |= ap_bf_sts; + } + + /* reserve and fill IE */ + pos = skb_put(skb, sizeof(struct ieee80211_vht_cap) + 2); + ieee80211_ie_build_vht_cap(pos, &vht_cap, cap); + + return mu_mimo_owner; +} + +/* This function determines HE capability flags for the association + * and builds the IE. + */ +static void ieee80211_add_he_ie(struct ieee80211_sub_if_data *sdata, + struct sk_buff *skb, + struct ieee80211_supported_band *sband, + enum ieee80211_smps_mode smps_mode, + ieee80211_conn_flags_t conn_flags) +{ + u8 *pos, *pre_he_pos; + const struct ieee80211_sta_he_cap *he_cap; + u8 he_cap_size; + + he_cap = ieee80211_get_he_iftype_cap(sband, + ieee80211_vif_type_p2p(&sdata->vif)); + if (WARN_ON(!he_cap)) + return; + + /* get a max size estimate */ + he_cap_size = + 2 + 1 + sizeof(he_cap->he_cap_elem) + + ieee80211_he_mcs_nss_size(&he_cap->he_cap_elem) + + ieee80211_he_ppe_size(he_cap->ppe_thres[0], + he_cap->he_cap_elem.phy_cap_info); + pos = skb_put(skb, he_cap_size); + pre_he_pos = pos; + pos = ieee80211_ie_build_he_cap(conn_flags, + pos, he_cap, pos + he_cap_size); + /* trim excess if any */ + skb_trim(skb, skb->len - (pre_he_pos + he_cap_size - pos)); + + ieee80211_ie_build_he_6ghz_cap(sdata, smps_mode, skb); +} + +static void ieee80211_add_eht_ie(struct ieee80211_sub_if_data *sdata, + struct sk_buff *skb, + struct ieee80211_supported_band *sband) +{ + u8 *pos; + const struct ieee80211_sta_he_cap *he_cap; + const struct ieee80211_sta_eht_cap *eht_cap; + u8 eht_cap_size; + + he_cap = ieee80211_get_he_iftype_cap(sband, + ieee80211_vif_type_p2p(&sdata->vif)); + eht_cap = ieee80211_get_eht_iftype_cap(sband, + ieee80211_vif_type_p2p(&sdata->vif)); + + /* + * EHT capabilities element is only added if the HE capabilities element + * was added so assume that 'he_cap' is valid and don't check it. + */ + if (WARN_ON(!he_cap || !eht_cap)) + return; + + eht_cap_size = + 2 + 1 + sizeof(eht_cap->eht_cap_elem) + + ieee80211_eht_mcs_nss_size(&he_cap->he_cap_elem, + &eht_cap->eht_cap_elem, + false) + + ieee80211_eht_ppe_size(eht_cap->eht_ppe_thres[0], + eht_cap->eht_cap_elem.phy_cap_info); + pos = skb_put(skb, eht_cap_size); + ieee80211_ie_build_eht_cap(pos, he_cap, eht_cap, pos + eht_cap_size, + false); +} + +static void ieee80211_assoc_add_rates(struct sk_buff *skb, + enum nl80211_chan_width width, + struct ieee80211_supported_band *sband, + struct ieee80211_mgd_assoc_data *assoc_data) +{ + unsigned int shift = ieee80211_chanwidth_get_shift(width); + unsigned int rates_len, supp_rates_len; + u32 rates = 0; + int i, count; + u8 *pos; + + if (assoc_data->supp_rates_len) { + /* + * Get all rates supported by the device and the AP as + * some APs don't like getting a superset of their rates + * in the association request (e.g. D-Link DAP 1353 in + * b-only mode)... + */ + rates_len = ieee80211_parse_bitrates(width, sband, + assoc_data->supp_rates, + assoc_data->supp_rates_len, + &rates); + } else { + /* + * In case AP not provide any supported rates information + * before association, we send information element(s) with + * all rates that we support. + */ + rates_len = sband->n_bitrates; + for (i = 0; i < sband->n_bitrates; i++) + rates |= BIT(i); + } + + supp_rates_len = rates_len; + if (supp_rates_len > 8) + supp_rates_len = 8; + + pos = skb_put(skb, supp_rates_len + 2); + *pos++ = WLAN_EID_SUPP_RATES; + *pos++ = supp_rates_len; + + count = 0; + for (i = 0; i < sband->n_bitrates; i++) { + if (BIT(i) & rates) { + int rate = DIV_ROUND_UP(sband->bitrates[i].bitrate, + 5 * (1 << shift)); + *pos++ = (u8)rate; + if (++count == 8) + break; + } + } + + if (rates_len > count) { + pos = skb_put(skb, rates_len - count + 2); + *pos++ = WLAN_EID_EXT_SUPP_RATES; + *pos++ = rates_len - count; + + for (i++; i < sband->n_bitrates; i++) { + if (BIT(i) & rates) { + int rate; + + rate = DIV_ROUND_UP(sband->bitrates[i].bitrate, + 5 * (1 << shift)); + *pos++ = (u8)rate; + } + } + } +} + +static size_t ieee80211_add_before_ht_elems(struct sk_buff *skb, + const u8 *elems, + size_t elems_len, + size_t offset) +{ + size_t noffset; + + static const u8 before_ht[] = { + WLAN_EID_SSID, + WLAN_EID_SUPP_RATES, + WLAN_EID_EXT_SUPP_RATES, + WLAN_EID_PWR_CAPABILITY, + WLAN_EID_SUPPORTED_CHANNELS, + WLAN_EID_RSN, + WLAN_EID_QOS_CAPA, + WLAN_EID_RRM_ENABLED_CAPABILITIES, + WLAN_EID_MOBILITY_DOMAIN, + WLAN_EID_FAST_BSS_TRANSITION, /* reassoc only */ + WLAN_EID_RIC_DATA, /* reassoc only */ + WLAN_EID_SUPPORTED_REGULATORY_CLASSES, + }; + static const u8 after_ric[] = { + WLAN_EID_SUPPORTED_REGULATORY_CLASSES, + WLAN_EID_HT_CAPABILITY, + WLAN_EID_BSS_COEX_2040, + /* luckily this is almost always there */ + WLAN_EID_EXT_CAPABILITY, + WLAN_EID_QOS_TRAFFIC_CAPA, + WLAN_EID_TIM_BCAST_REQ, + WLAN_EID_INTERWORKING, + /* 60 GHz (Multi-band, DMG, MMS) can't happen */ + WLAN_EID_VHT_CAPABILITY, + WLAN_EID_OPMODE_NOTIF, + }; + + if (!elems_len) + return offset; + + noffset = ieee80211_ie_split_ric(elems, elems_len, + before_ht, + ARRAY_SIZE(before_ht), + after_ric, + ARRAY_SIZE(after_ric), + offset); + skb_put_data(skb, elems + offset, noffset - offset); + + return noffset; +} + +static size_t ieee80211_add_before_vht_elems(struct sk_buff *skb, + const u8 *elems, + size_t elems_len, + size_t offset) +{ + static const u8 before_vht[] = { + /* + * no need to list the ones split off before HT + * or generated here + */ + WLAN_EID_BSS_COEX_2040, + WLAN_EID_EXT_CAPABILITY, + WLAN_EID_QOS_TRAFFIC_CAPA, + WLAN_EID_TIM_BCAST_REQ, + WLAN_EID_INTERWORKING, + /* 60 GHz (Multi-band, DMG, MMS) can't happen */ + }; + size_t noffset; + + if (!elems_len) + return offset; + + /* RIC already taken care of in ieee80211_add_before_ht_elems() */ + noffset = ieee80211_ie_split(elems, elems_len, + before_vht, ARRAY_SIZE(before_vht), + offset); + skb_put_data(skb, elems + offset, noffset - offset); + + return noffset; +} + +static size_t ieee80211_add_before_he_elems(struct sk_buff *skb, + const u8 *elems, + size_t elems_len, + size_t offset) +{ + static const u8 before_he[] = { + /* + * no need to list the ones split off before VHT + * or generated here + */ + WLAN_EID_OPMODE_NOTIF, + WLAN_EID_EXTENSION, WLAN_EID_EXT_FUTURE_CHAN_GUIDANCE, + /* 11ai elements */ + WLAN_EID_EXTENSION, WLAN_EID_EXT_FILS_SESSION, + WLAN_EID_EXTENSION, WLAN_EID_EXT_FILS_PUBLIC_KEY, + WLAN_EID_EXTENSION, WLAN_EID_EXT_FILS_KEY_CONFIRM, + WLAN_EID_EXTENSION, WLAN_EID_EXT_FILS_HLP_CONTAINER, + WLAN_EID_EXTENSION, WLAN_EID_EXT_FILS_IP_ADDR_ASSIGN, + /* TODO: add 11ah/11aj/11ak elements */ + }; + size_t noffset; + + if (!elems_len) + return offset; + + /* RIC already taken care of in ieee80211_add_before_ht_elems() */ + noffset = ieee80211_ie_split(elems, elems_len, + before_he, ARRAY_SIZE(before_he), + offset); + skb_put_data(skb, elems + offset, noffset - offset); + + return noffset; +} + +#define PRESENT_ELEMS_MAX 8 +#define PRESENT_ELEM_EXT_OFFS 0x100 + +static void ieee80211_assoc_add_ml_elem(struct ieee80211_sub_if_data *sdata, + struct sk_buff *skb, u16 capab, + const struct element *ext_capa, + const u16 *present_elems); + +static size_t ieee80211_assoc_link_elems(struct ieee80211_sub_if_data *sdata, + struct sk_buff *skb, u16 *capab, + const struct element *ext_capa, + const u8 *extra_elems, + size_t extra_elems_len, + unsigned int link_id, + struct ieee80211_link_data *link, + u16 *present_elems) +{ + enum nl80211_iftype iftype = ieee80211_vif_type_p2p(&sdata->vif); + struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; + struct ieee80211_mgd_assoc_data *assoc_data = ifmgd->assoc_data; + struct cfg80211_bss *cbss = assoc_data->link[link_id].bss; + struct ieee80211_channel *chan = cbss->channel; + const struct ieee80211_sband_iftype_data *iftd; + struct ieee80211_local *local = sdata->local; + struct ieee80211_supported_band *sband; + enum nl80211_chan_width width = NL80211_CHAN_WIDTH_20; + struct ieee80211_chanctx_conf *chanctx_conf; + enum ieee80211_smps_mode smps_mode; + u16 orig_capab = *capab; + size_t offset = 0; + int present_elems_len = 0; + u8 *pos; + int i; + +#define ADD_PRESENT_ELEM(id) do { \ + /* need a last for termination - we use 0 == SSID */ \ + if (!WARN_ON(present_elems_len >= PRESENT_ELEMS_MAX - 1)) \ + present_elems[present_elems_len++] = (id); \ +} while (0) +#define ADD_PRESENT_EXT_ELEM(id) ADD_PRESENT_ELEM(PRESENT_ELEM_EXT_OFFS | (id)) + + if (link) + smps_mode = link->smps_mode; + else if (sdata->u.mgd.powersave) + smps_mode = IEEE80211_SMPS_DYNAMIC; + else + smps_mode = IEEE80211_SMPS_OFF; + + if (link) { + /* + * 5/10 MHz scenarios are only viable without MLO, in which + * case this pointer should be used ... All of this is a bit + * unclear though, not sure this even works at all. + */ + rcu_read_lock(); + chanctx_conf = rcu_dereference(link->conf->chanctx_conf); + if (chanctx_conf) + width = chanctx_conf->def.width; + rcu_read_unlock(); + } + + sband = local->hw.wiphy->bands[chan->band]; + iftd = ieee80211_get_sband_iftype_data(sband, iftype); + + if (sband->band == NL80211_BAND_2GHZ) { + *capab |= WLAN_CAPABILITY_SHORT_SLOT_TIME; + *capab |= WLAN_CAPABILITY_SHORT_PREAMBLE; + } + + if ((cbss->capability & WLAN_CAPABILITY_SPECTRUM_MGMT) && + ieee80211_hw_check(&local->hw, SPECTRUM_MGMT)) + *capab |= WLAN_CAPABILITY_SPECTRUM_MGMT; + + if (sband->band != NL80211_BAND_S1GHZ) + ieee80211_assoc_add_rates(skb, width, sband, assoc_data); + + if (*capab & WLAN_CAPABILITY_SPECTRUM_MGMT || + *capab & WLAN_CAPABILITY_RADIO_MEASURE) { + struct cfg80211_chan_def chandef = { + .width = width, + .chan = chan, + }; + + pos = skb_put(skb, 4); + *pos++ = WLAN_EID_PWR_CAPABILITY; + *pos++ = 2; + *pos++ = 0; /* min tx power */ + /* max tx power */ + *pos++ = ieee80211_chandef_max_power(&chandef); + ADD_PRESENT_ELEM(WLAN_EID_PWR_CAPABILITY); + } + + /* + * Per spec, we shouldn't include the list of channels if we advertise + * support for extended channel switching, but we've always done that; + * (for now?) apply this restriction only on the (new) 6 GHz band. + */ + if (*capab & WLAN_CAPABILITY_SPECTRUM_MGMT && + (sband->band != NL80211_BAND_6GHZ || + !ext_capa || ext_capa->datalen < 1 || + !(ext_capa->data[0] & WLAN_EXT_CAPA1_EXT_CHANNEL_SWITCHING))) { + /* TODO: get this in reg domain format */ + pos = skb_put(skb, 2 * sband->n_channels + 2); + *pos++ = WLAN_EID_SUPPORTED_CHANNELS; + *pos++ = 2 * sband->n_channels; + for (i = 0; i < sband->n_channels; i++) { + int cf = sband->channels[i].center_freq; + + *pos++ = ieee80211_frequency_to_channel(cf); + *pos++ = 1; /* one channel in the subband*/ + } + ADD_PRESENT_ELEM(WLAN_EID_SUPPORTED_CHANNELS); + } + + /* if present, add any custom IEs that go before HT */ + offset = ieee80211_add_before_ht_elems(skb, extra_elems, + extra_elems_len, + offset); + + if (sband->band != NL80211_BAND_6GHZ && + !(assoc_data->link[link_id].conn_flags & IEEE80211_CONN_DISABLE_HT)) { + ieee80211_add_ht_ie(sdata, skb, + assoc_data->link[link_id].ap_ht_param, + sband, chan, smps_mode, + assoc_data->link[link_id].conn_flags); + ADD_PRESENT_ELEM(WLAN_EID_HT_CAPABILITY); + } + + /* if present, add any custom IEs that go before VHT */ + offset = ieee80211_add_before_vht_elems(skb, extra_elems, + extra_elems_len, + offset); + + if (sband->band != NL80211_BAND_6GHZ && + !(assoc_data->link[link_id].conn_flags & IEEE80211_CONN_DISABLE_VHT)) { + bool mu_mimo_owner = + ieee80211_add_vht_ie(sdata, skb, sband, + &assoc_data->link[link_id].ap_vht_cap, + assoc_data->link[link_id].conn_flags); + + if (link) + link->conf->mu_mimo_owner = mu_mimo_owner; + ADD_PRESENT_ELEM(WLAN_EID_VHT_CAPABILITY); + } + + /* + * If AP doesn't support HT, mark HE and EHT as disabled. + * If on the 5GHz band, make sure it supports VHT. + */ + if (assoc_data->link[link_id].conn_flags & IEEE80211_CONN_DISABLE_HT || + (sband->band == NL80211_BAND_5GHZ && + assoc_data->link[link_id].conn_flags & IEEE80211_CONN_DISABLE_VHT)) + assoc_data->link[link_id].conn_flags |= + IEEE80211_CONN_DISABLE_HE | + IEEE80211_CONN_DISABLE_EHT; + + /* if present, add any custom IEs that go before HE */ + offset = ieee80211_add_before_he_elems(skb, extra_elems, + extra_elems_len, + offset); + + if (!(assoc_data->link[link_id].conn_flags & IEEE80211_CONN_DISABLE_HE)) { + ieee80211_add_he_ie(sdata, skb, sband, smps_mode, + assoc_data->link[link_id].conn_flags); + ADD_PRESENT_EXT_ELEM(WLAN_EID_EXT_HE_CAPABILITY); + } + + /* + * careful - need to know about all the present elems before + * calling ieee80211_assoc_add_ml_elem(), so add this one if + * we're going to put it after the ML element + */ + if (!(assoc_data->link[link_id].conn_flags & IEEE80211_CONN_DISABLE_EHT)) + ADD_PRESENT_EXT_ELEM(WLAN_EID_EXT_EHT_CAPABILITY); + + if (link_id == assoc_data->assoc_link_id) + ieee80211_assoc_add_ml_elem(sdata, skb, orig_capab, ext_capa, + present_elems); + + /* crash if somebody gets it wrong */ + present_elems = NULL; + + if (!(assoc_data->link[link_id].conn_flags & IEEE80211_CONN_DISABLE_EHT)) + ieee80211_add_eht_ie(sdata, skb, sband); + + if (sband->band == NL80211_BAND_S1GHZ) { + ieee80211_add_aid_request_ie(sdata, skb); + ieee80211_add_s1g_capab_ie(sdata, &sband->s1g_cap, skb); + } + + if (iftd && iftd->vendor_elems.data && iftd->vendor_elems.len) + skb_put_data(skb, iftd->vendor_elems.data, iftd->vendor_elems.len); + + if (link) + link->u.mgd.conn_flags = assoc_data->link[link_id].conn_flags; + + return offset; +} + +static void ieee80211_add_non_inheritance_elem(struct sk_buff *skb, + const u16 *outer, + const u16 *inner) +{ + unsigned int skb_len = skb->len; + bool added = false; + int i, j; + u8 *len, *list_len = NULL; + + skb_put_u8(skb, WLAN_EID_EXTENSION); + len = skb_put(skb, 1); + skb_put_u8(skb, WLAN_EID_EXT_NON_INHERITANCE); + + for (i = 0; i < PRESENT_ELEMS_MAX && outer[i]; i++) { + u16 elem = outer[i]; + bool have_inner = false; + bool at_extension = false; + + /* should at least be sorted in the sense of normal -> ext */ + WARN_ON(at_extension && elem < PRESENT_ELEM_EXT_OFFS); + + /* switch to extension list */ + if (!at_extension && elem >= PRESENT_ELEM_EXT_OFFS) { + at_extension = true; + if (!list_len) + skb_put_u8(skb, 0); + list_len = NULL; + } + + for (j = 0; j < PRESENT_ELEMS_MAX && inner[j]; j++) { + if (elem == inner[j]) { + have_inner = true; + break; + } + } + + if (have_inner) + continue; + + if (!list_len) { + list_len = skb_put(skb, 1); + *list_len = 0; + } + *list_len += 1; + skb_put_u8(skb, (u8)elem); + } + + if (!added) + skb_trim(skb, skb_len); + else + *len = skb->len - skb_len - 2; +} + +static void ieee80211_assoc_add_ml_elem(struct ieee80211_sub_if_data *sdata, + struct sk_buff *skb, u16 capab, + const struct element *ext_capa, + const u16 *outer_present_elems) +{ + struct ieee80211_local *local = sdata->local; + struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; + struct ieee80211_mgd_assoc_data *assoc_data = ifmgd->assoc_data; + struct ieee80211_multi_link_elem *ml_elem; + struct ieee80211_mle_basic_common_info *common; + const struct wiphy_iftype_ext_capab *ift_ext_capa; + __le16 eml_capa = 0, mld_capa_ops = 0; + unsigned int link_id; + u8 *ml_elem_len; + void *capab_pos; + + if (!sdata->vif.valid_links) + return; + + ift_ext_capa = cfg80211_get_iftype_ext_capa(local->hw.wiphy, + ieee80211_vif_type_p2p(&sdata->vif)); + if (ift_ext_capa) { + eml_capa = cpu_to_le16(ift_ext_capa->eml_capabilities); + mld_capa_ops = cpu_to_le16(ift_ext_capa->mld_capa_and_ops); + } + + skb_put_u8(skb, WLAN_EID_EXTENSION); + ml_elem_len = skb_put(skb, 1); + skb_put_u8(skb, WLAN_EID_EXT_EHT_MULTI_LINK); + ml_elem = skb_put(skb, sizeof(*ml_elem)); + ml_elem->control = + cpu_to_le16(IEEE80211_ML_CONTROL_TYPE_BASIC | + IEEE80211_MLC_BASIC_PRES_MLD_CAPA_OP); + common = skb_put(skb, sizeof(*common)); + common->len = sizeof(*common) + + 2; /* MLD capa/ops */ + memcpy(common->mld_mac_addr, sdata->vif.addr, ETH_ALEN); + + /* add EML_CAPA only if needed, see Draft P802.11be_D2.1, 35.3.17 */ + if (eml_capa & + cpu_to_le16((IEEE80211_EML_CAP_EMLSR_SUPP | + IEEE80211_EML_CAP_EMLMR_SUPPORT))) { + common->len += 2; /* EML capabilities */ + ml_elem->control |= + cpu_to_le16(IEEE80211_MLC_BASIC_PRES_EML_CAPA); + skb_put_data(skb, &eml_capa, sizeof(eml_capa)); + } + /* need indication from userspace to support this */ + mld_capa_ops &= ~cpu_to_le16(IEEE80211_MLD_CAP_OP_TID_TO_LINK_MAP_NEG_SUPP); + skb_put_data(skb, &mld_capa_ops, sizeof(mld_capa_ops)); + + for (link_id = 0; link_id < IEEE80211_MLD_MAX_NUM_LINKS; link_id++) { + u16 link_present_elems[PRESENT_ELEMS_MAX] = {}; + const u8 *extra_elems; + size_t extra_elems_len; + size_t extra_used; + u8 *subelem_len = NULL; + __le16 ctrl; + + if (!assoc_data->link[link_id].bss || + link_id == assoc_data->assoc_link_id) + continue; + + extra_elems = assoc_data->link[link_id].elems; + extra_elems_len = assoc_data->link[link_id].elems_len; + + skb_put_u8(skb, IEEE80211_MLE_SUBELEM_PER_STA_PROFILE); + subelem_len = skb_put(skb, 1); + + ctrl = cpu_to_le16(link_id | + IEEE80211_MLE_STA_CONTROL_COMPLETE_PROFILE | + IEEE80211_MLE_STA_CONTROL_STA_MAC_ADDR_PRESENT); + skb_put_data(skb, &ctrl, sizeof(ctrl)); + skb_put_u8(skb, 1 + ETH_ALEN); /* STA Info Length */ + skb_put_data(skb, assoc_data->link[link_id].addr, + ETH_ALEN); + /* + * Now add the contents of the (re)association request, + * but the "listen interval" and "current AP address" + * (if applicable) are skipped. So we only have + * the capability field (remember the position and fill + * later), followed by the elements added below by + * calling ieee80211_assoc_link_elems(). + */ + capab_pos = skb_put(skb, 2); + + extra_used = ieee80211_assoc_link_elems(sdata, skb, &capab, + ext_capa, + extra_elems, + extra_elems_len, + link_id, NULL, + link_present_elems); + if (extra_elems) + skb_put_data(skb, extra_elems + extra_used, + extra_elems_len - extra_used); + + put_unaligned_le16(capab, capab_pos); + + ieee80211_add_non_inheritance_elem(skb, outer_present_elems, + link_present_elems); + + ieee80211_fragment_element(skb, subelem_len); + } + + ieee80211_fragment_element(skb, ml_elem_len); +} + +static int ieee80211_send_assoc(struct ieee80211_sub_if_data *sdata) +{ + struct ieee80211_local *local = sdata->local; + struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; + struct ieee80211_mgd_assoc_data *assoc_data = ifmgd->assoc_data; + struct ieee80211_link_data *link; + struct sk_buff *skb; + struct ieee80211_mgmt *mgmt; + u8 *pos, qos_info, *ie_start; + size_t offset, noffset; + u16 capab = WLAN_CAPABILITY_ESS, link_capab; + __le16 listen_int; + struct element *ext_capa = NULL; + enum nl80211_iftype iftype = ieee80211_vif_type_p2p(&sdata->vif); + struct ieee80211_prep_tx_info info = {}; + unsigned int link_id, n_links = 0; + u16 present_elems[PRESENT_ELEMS_MAX] = {}; + void *capab_pos; + size_t size; + int ret; + + /* we know it's writable, cast away the const */ + if (assoc_data->ie_len) + ext_capa = (void *)cfg80211_find_elem(WLAN_EID_EXT_CAPABILITY, + assoc_data->ie, + assoc_data->ie_len); + + sdata_assert_lock(sdata); + + size = local->hw.extra_tx_headroom + + sizeof(*mgmt) + /* bit too much but doesn't matter */ + 2 + assoc_data->ssid_len + /* SSID */ + assoc_data->ie_len + /* extra IEs */ + (assoc_data->fils_kek_len ? 16 /* AES-SIV */ : 0) + + 9; /* WMM */ + + for (link_id = 0; link_id < IEEE80211_MLD_MAX_NUM_LINKS; link_id++) { + struct cfg80211_bss *cbss = assoc_data->link[link_id].bss; + const struct ieee80211_sband_iftype_data *iftd; + struct ieee80211_supported_band *sband; + + if (!cbss) + continue; + + sband = local->hw.wiphy->bands[cbss->channel->band]; + + n_links++; + /* add STA profile elements length */ + size += assoc_data->link[link_id].elems_len; + /* and supported rates length */ + size += 4 + sband->n_bitrates; + /* supported channels */ + size += 2 + 2 * sband->n_channels; + + iftd = ieee80211_get_sband_iftype_data(sband, iftype); + if (iftd) + size += iftd->vendor_elems.len; + + /* power capability */ + size += 4; + + /* HT, VHT, HE, EHT */ + size += 2 + sizeof(struct ieee80211_ht_cap); + size += 2 + sizeof(struct ieee80211_vht_cap); + size += 2 + 1 + sizeof(struct ieee80211_he_cap_elem) + + sizeof(struct ieee80211_he_mcs_nss_supp) + + IEEE80211_HE_PPE_THRES_MAX_LEN; + + if (sband->band == NL80211_BAND_6GHZ) + size += 2 + 1 + sizeof(struct ieee80211_he_6ghz_capa); + + size += 2 + 1 + sizeof(struct ieee80211_eht_cap_elem) + + sizeof(struct ieee80211_eht_mcs_nss_supp) + + IEEE80211_EHT_PPE_THRES_MAX_LEN; + + /* non-inheritance element */ + size += 2 + 2 + PRESENT_ELEMS_MAX; + + /* should be the same across all BSSes */ + if (cbss->capability & WLAN_CAPABILITY_PRIVACY) + capab |= WLAN_CAPABILITY_PRIVACY; + } + + if (sdata->vif.valid_links) { + /* consider the multi-link element with STA profile */ + size += sizeof(struct ieee80211_multi_link_elem); + /* max common info field in basic multi-link element */ + size += sizeof(struct ieee80211_mle_basic_common_info) + + 2 + /* capa & op */ + 2; /* EML capa */ + + /* + * The capability elements were already considered above; + * note this over-estimates a bit because there's no + * STA profile for the assoc link. + */ + size += (n_links - 1) * + (1 + 1 + /* subelement ID/length */ + 2 + /* STA control */ + 1 + ETH_ALEN + 2 /* STA Info field */); + } + + link = sdata_dereference(sdata->link[assoc_data->assoc_link_id], sdata); + if (WARN_ON(!link)) + return -EINVAL; + + if (WARN_ON(!assoc_data->link[assoc_data->assoc_link_id].bss)) + return -EINVAL; + + skb = alloc_skb(size, GFP_KERNEL); + if (!skb) + return -ENOMEM; + + skb_reserve(skb, local->hw.extra_tx_headroom); + + if (ifmgd->flags & IEEE80211_STA_ENABLE_RRM) + capab |= WLAN_CAPABILITY_RADIO_MEASURE; + + /* Set MBSSID support for HE AP if needed */ + if (ieee80211_hw_check(&local->hw, SUPPORTS_ONLY_HE_MULTI_BSSID) && + !(link->u.mgd.conn_flags & IEEE80211_CONN_DISABLE_HE) && + ext_capa && ext_capa->datalen >= 3) + ext_capa->data[2] |= WLAN_EXT_CAPA3_MULTI_BSSID_SUPPORT; + + mgmt = skb_put_zero(skb, 24); + memcpy(mgmt->da, sdata->vif.cfg.ap_addr, ETH_ALEN); + memcpy(mgmt->sa, sdata->vif.addr, ETH_ALEN); + memcpy(mgmt->bssid, sdata->vif.cfg.ap_addr, ETH_ALEN); + + listen_int = cpu_to_le16(assoc_data->s1g ? + ieee80211_encode_usf(local->hw.conf.listen_interval) : + local->hw.conf.listen_interval); + if (!is_zero_ether_addr(assoc_data->prev_ap_addr)) { + skb_put(skb, 10); + mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT | + IEEE80211_STYPE_REASSOC_REQ); + capab_pos = &mgmt->u.reassoc_req.capab_info; + mgmt->u.reassoc_req.listen_interval = listen_int; + memcpy(mgmt->u.reassoc_req.current_ap, + assoc_data->prev_ap_addr, ETH_ALEN); + info.subtype = IEEE80211_STYPE_REASSOC_REQ; + } else { + skb_put(skb, 4); + mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT | + IEEE80211_STYPE_ASSOC_REQ); + capab_pos = &mgmt->u.assoc_req.capab_info; + mgmt->u.assoc_req.listen_interval = listen_int; + info.subtype = IEEE80211_STYPE_ASSOC_REQ; + } + + /* SSID */ + pos = skb_put(skb, 2 + assoc_data->ssid_len); + ie_start = pos; + *pos++ = WLAN_EID_SSID; + *pos++ = assoc_data->ssid_len; + memcpy(pos, assoc_data->ssid, assoc_data->ssid_len); + + /* add the elements for the assoc (main) link */ + link_capab = capab; + offset = ieee80211_assoc_link_elems(sdata, skb, &link_capab, + ext_capa, + assoc_data->ie, + assoc_data->ie_len, + assoc_data->assoc_link_id, link, + present_elems); + put_unaligned_le16(link_capab, capab_pos); + + /* if present, add any custom non-vendor IEs */ + if (assoc_data->ie_len) { + noffset = ieee80211_ie_split_vendor(assoc_data->ie, + assoc_data->ie_len, + offset); + skb_put_data(skb, assoc_data->ie + offset, noffset - offset); + offset = noffset; + } + + if (assoc_data->wmm) { + if (assoc_data->uapsd) { + qos_info = ifmgd->uapsd_queues; + qos_info |= (ifmgd->uapsd_max_sp_len << + IEEE80211_WMM_IE_STA_QOSINFO_SP_SHIFT); + } else { + qos_info = 0; + } + + pos = ieee80211_add_wmm_info_ie(skb_put(skb, 9), qos_info); + } + + /* add any remaining custom (i.e. vendor specific here) IEs */ + if (assoc_data->ie_len) { + noffset = assoc_data->ie_len; + skb_put_data(skb, assoc_data->ie + offset, noffset - offset); + } + + if (assoc_data->fils_kek_len) { + ret = fils_encrypt_assoc_req(skb, assoc_data); + if (ret < 0) { + dev_kfree_skb(skb); + return ret; + } + } + + pos = skb_tail_pointer(skb); + kfree(ifmgd->assoc_req_ies); + ifmgd->assoc_req_ies = kmemdup(ie_start, pos - ie_start, GFP_ATOMIC); + if (!ifmgd->assoc_req_ies) { + dev_kfree_skb(skb); + return -ENOMEM; + } + + ifmgd->assoc_req_ies_len = pos - ie_start; + + drv_mgd_prepare_tx(local, sdata, &info); + + IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_INTFL_DONT_ENCRYPT; + if (ieee80211_hw_check(&local->hw, REPORTS_TX_ACK_STATUS)) + IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS | + IEEE80211_TX_INTFL_MLME_CONN_TX; + ieee80211_tx_skb(sdata, skb); + + return 0; +} + +void ieee80211_send_pspoll(struct ieee80211_local *local, + struct ieee80211_sub_if_data *sdata) +{ + struct ieee80211_pspoll *pspoll; + struct sk_buff *skb; + + skb = ieee80211_pspoll_get(&local->hw, &sdata->vif); + if (!skb) + return; + + pspoll = (struct ieee80211_pspoll *) skb->data; + pspoll->frame_control |= cpu_to_le16(IEEE80211_FCTL_PM); + + IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_INTFL_DONT_ENCRYPT; + ieee80211_tx_skb(sdata, skb); +} + +void ieee80211_send_nullfunc(struct ieee80211_local *local, + struct ieee80211_sub_if_data *sdata, + bool powersave) +{ + struct sk_buff *skb; + struct ieee80211_hdr_3addr *nullfunc; + struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; + + skb = ieee80211_nullfunc_get(&local->hw, &sdata->vif, -1, + !ieee80211_hw_check(&local->hw, + DOESNT_SUPPORT_QOS_NDP)); + if (!skb) + return; + + nullfunc = (struct ieee80211_hdr_3addr *) skb->data; + if (powersave) + nullfunc->frame_control |= cpu_to_le16(IEEE80211_FCTL_PM); + + IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_INTFL_DONT_ENCRYPT | + IEEE80211_TX_INTFL_OFFCHAN_TX_OK; + + if (ieee80211_hw_check(&local->hw, REPORTS_TX_ACK_STATUS)) + IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS; + + if (ifmgd->flags & IEEE80211_STA_CONNECTION_POLL) + IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_CTL_USE_MINRATE; + + ieee80211_tx_skb(sdata, skb); +} + +void ieee80211_send_4addr_nullfunc(struct ieee80211_local *local, + struct ieee80211_sub_if_data *sdata) +{ + struct sk_buff *skb; + struct ieee80211_hdr *nullfunc; + __le16 fc; + + if (WARN_ON(sdata->vif.type != NL80211_IFTYPE_STATION)) + return; + + skb = dev_alloc_skb(local->hw.extra_tx_headroom + 30); + if (!skb) + return; + + skb_reserve(skb, local->hw.extra_tx_headroom); + + nullfunc = skb_put_zero(skb, 30); + fc = cpu_to_le16(IEEE80211_FTYPE_DATA | IEEE80211_STYPE_NULLFUNC | + IEEE80211_FCTL_FROMDS | IEEE80211_FCTL_TODS); + nullfunc->frame_control = fc; + memcpy(nullfunc->addr1, sdata->deflink.u.mgd.bssid, ETH_ALEN); + memcpy(nullfunc->addr2, sdata->vif.addr, ETH_ALEN); + memcpy(nullfunc->addr3, sdata->deflink.u.mgd.bssid, ETH_ALEN); + memcpy(nullfunc->addr4, sdata->vif.addr, ETH_ALEN); + + IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_INTFL_DONT_ENCRYPT; + IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_CTL_USE_MINRATE; + ieee80211_tx_skb(sdata, skb); +} + +/* spectrum management related things */ +static void ieee80211_chswitch_work(struct work_struct *work) +{ + struct ieee80211_link_data *link = + container_of(work, struct ieee80211_link_data, u.mgd.chswitch_work); + struct ieee80211_sub_if_data *sdata = link->sdata; + struct ieee80211_local *local = sdata->local; + struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; + int ret; + + if (!ieee80211_sdata_running(sdata)) + return; + + sdata_lock(sdata); + mutex_lock(&local->mtx); + mutex_lock(&local->chanctx_mtx); + + if (!ifmgd->associated) + goto out; + + if (!link->conf->csa_active) + goto out; + + /* + * using reservation isn't immediate as it may be deferred until later + * with multi-vif. once reservation is complete it will re-schedule the + * work with no reserved_chanctx so verify chandef to check if it + * completed successfully + */ + + if (link->reserved_chanctx) { + /* + * with multi-vif csa driver may call ieee80211_csa_finish() + * many times while waiting for other interfaces to use their + * reservations + */ + if (link->reserved_ready) + goto out; + + ret = ieee80211_link_use_reserved_context(link); + if (ret) { + sdata_info(sdata, + "failed to use reserved channel context, disconnecting (err=%d)\n", + ret); + ieee80211_queue_work(&sdata->local->hw, + &ifmgd->csa_connection_drop_work); + goto out; + } + + goto out; + } + + if (!cfg80211_chandef_identical(&link->conf->chandef, + &link->csa_chandef)) { + sdata_info(sdata, + "failed to finalize channel switch, disconnecting\n"); + ieee80211_queue_work(&sdata->local->hw, + &ifmgd->csa_connection_drop_work); + goto out; + } + + link->u.mgd.csa_waiting_bcn = true; + + ieee80211_sta_reset_beacon_monitor(sdata); + ieee80211_sta_reset_conn_monitor(sdata); + +out: + mutex_unlock(&local->chanctx_mtx); + mutex_unlock(&local->mtx); + sdata_unlock(sdata); +} + +static void ieee80211_chswitch_post_beacon(struct ieee80211_link_data *link) +{ + struct ieee80211_sub_if_data *sdata = link->sdata; + struct ieee80211_local *local = sdata->local; + struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; + int ret; + + sdata_assert_lock(sdata); + + WARN_ON(!link->conf->csa_active); + + if (link->csa_block_tx) { + ieee80211_wake_vif_queues(local, sdata, + IEEE80211_QUEUE_STOP_REASON_CSA); + link->csa_block_tx = false; + } + + link->conf->csa_active = false; + link->u.mgd.csa_waiting_bcn = false; + /* + * If the CSA IE is still present on the beacon after the switch, + * we need to consider it as a new CSA (possibly to self). + */ + link->u.mgd.beacon_crc_valid = false; + + ret = drv_post_channel_switch(sdata); + if (ret) { + sdata_info(sdata, + "driver post channel switch failed, disconnecting\n"); + ieee80211_queue_work(&local->hw, + &ifmgd->csa_connection_drop_work); + return; + } + + cfg80211_ch_switch_notify(sdata->dev, &link->reserved_chandef, 0, 0); +} + +void ieee80211_chswitch_done(struct ieee80211_vif *vif, bool success) +{ + struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); + struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; + + if (WARN_ON(sdata->vif.valid_links)) + success = false; + + trace_api_chswitch_done(sdata, success); + if (!success) { + sdata_info(sdata, + "driver channel switch failed, disconnecting\n"); + ieee80211_queue_work(&sdata->local->hw, + &ifmgd->csa_connection_drop_work); + } else { + ieee80211_queue_work(&sdata->local->hw, + &sdata->deflink.u.mgd.chswitch_work); + } +} +EXPORT_SYMBOL(ieee80211_chswitch_done); + +static void ieee80211_chswitch_timer(struct timer_list *t) +{ + struct ieee80211_link_data *link = + from_timer(link, t, u.mgd.chswitch_timer); + + ieee80211_queue_work(&link->sdata->local->hw, + &link->u.mgd.chswitch_work); +} + +static void +ieee80211_sta_abort_chanswitch(struct ieee80211_link_data *link) +{ + struct ieee80211_sub_if_data *sdata = link->sdata; + struct ieee80211_local *local = sdata->local; + + if (!local->ops->abort_channel_switch) + return; + + mutex_lock(&local->mtx); + + mutex_lock(&local->chanctx_mtx); + ieee80211_link_unreserve_chanctx(link); + mutex_unlock(&local->chanctx_mtx); + + if (link->csa_block_tx) + ieee80211_wake_vif_queues(local, sdata, + IEEE80211_QUEUE_STOP_REASON_CSA); + + link->csa_block_tx = false; + link->conf->csa_active = false; + + mutex_unlock(&local->mtx); + + drv_abort_channel_switch(sdata); +} + +static void +ieee80211_sta_process_chanswitch(struct ieee80211_link_data *link, + u64 timestamp, u32 device_timestamp, + struct ieee802_11_elems *elems, + bool beacon) +{ + struct ieee80211_sub_if_data *sdata = link->sdata; + struct ieee80211_local *local = sdata->local; + struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; + struct cfg80211_bss *cbss = link->u.mgd.bss; + struct ieee80211_chanctx_conf *conf; + struct ieee80211_chanctx *chanctx; + enum nl80211_band current_band; + struct ieee80211_csa_ie csa_ie; + struct ieee80211_channel_switch ch_switch; + struct ieee80211_bss *bss; + int res; + + sdata_assert_lock(sdata); + + if (!cbss) + return; + + if (local->scanning) + return; + + current_band = cbss->channel->band; + bss = (void *)cbss->priv; + res = ieee80211_parse_ch_switch_ie(sdata, elems, current_band, + bss->vht_cap_info, + link->u.mgd.conn_flags, + link->u.mgd.bssid, &csa_ie); + + if (!res) { + ch_switch.timestamp = timestamp; + ch_switch.device_timestamp = device_timestamp; + ch_switch.block_tx = csa_ie.mode; + ch_switch.chandef = csa_ie.chandef; + ch_switch.count = csa_ie.count; + ch_switch.delay = csa_ie.max_switch_time; + } + + if (res < 0) + goto lock_and_drop_connection; + + if (beacon && link->conf->csa_active && + !link->u.mgd.csa_waiting_bcn) { + if (res) + ieee80211_sta_abort_chanswitch(link); + else + drv_channel_switch_rx_beacon(sdata, &ch_switch); + return; + } else if (link->conf->csa_active || res) { + /* disregard subsequent announcements if already processing */ + return; + } + + if (link->conf->chandef.chan->band != + csa_ie.chandef.chan->band) { + sdata_info(sdata, + "AP %pM switches to different band (%d MHz, width:%d, CF1/2: %d/%d MHz), disconnecting\n", + link->u.mgd.bssid, + csa_ie.chandef.chan->center_freq, + csa_ie.chandef.width, csa_ie.chandef.center_freq1, + csa_ie.chandef.center_freq2); + goto lock_and_drop_connection; + } + + if (!cfg80211_chandef_usable(local->hw.wiphy, &csa_ie.chandef, + IEEE80211_CHAN_DISABLED)) { + sdata_info(sdata, + "AP %pM switches to unsupported channel " + "(%d.%03d MHz, width:%d, CF1/2: %d.%03d/%d MHz), " + "disconnecting\n", + link->u.mgd.bssid, + csa_ie.chandef.chan->center_freq, + csa_ie.chandef.chan->freq_offset, + csa_ie.chandef.width, csa_ie.chandef.center_freq1, + csa_ie.chandef.freq1_offset, + csa_ie.chandef.center_freq2); + goto lock_and_drop_connection; + } + + if (cfg80211_chandef_identical(&csa_ie.chandef, + &link->conf->chandef) && + (!csa_ie.mode || !beacon)) { + if (link->u.mgd.csa_ignored_same_chan) + return; + sdata_info(sdata, + "AP %pM tries to chanswitch to same channel, ignore\n", + link->u.mgd.bssid); + link->u.mgd.csa_ignored_same_chan = true; + return; + } + + /* + * Drop all TDLS peers - either we disconnect or move to a different + * channel from this point on. There's no telling what our peer will do. + * The TDLS WIDER_BW scenario is also problematic, as peers might now + * have an incompatible wider chandef. + */ + ieee80211_teardown_tdls_peers(sdata); + + mutex_lock(&local->mtx); + mutex_lock(&local->chanctx_mtx); + conf = rcu_dereference_protected(link->conf->chanctx_conf, + lockdep_is_held(&local->chanctx_mtx)); + if (!conf) { + sdata_info(sdata, + "no channel context assigned to vif?, disconnecting\n"); + goto drop_connection; + } + + chanctx = container_of(conf, struct ieee80211_chanctx, conf); + + if (local->use_chanctx && + !ieee80211_hw_check(&local->hw, CHANCTX_STA_CSA)) { + sdata_info(sdata, + "driver doesn't support chan-switch with channel contexts\n"); + goto drop_connection; + } + + if (drv_pre_channel_switch(sdata, &ch_switch)) { + sdata_info(sdata, + "preparing for channel switch failed, disconnecting\n"); + goto drop_connection; + } + + res = ieee80211_link_reserve_chanctx(link, &csa_ie.chandef, + chanctx->mode, false); + if (res) { + sdata_info(sdata, + "failed to reserve channel context for channel switch, disconnecting (err=%d)\n", + res); + goto drop_connection; + } + mutex_unlock(&local->chanctx_mtx); + + link->conf->csa_active = true; + link->csa_chandef = csa_ie.chandef; + link->csa_block_tx = csa_ie.mode; + link->u.mgd.csa_ignored_same_chan = false; + link->u.mgd.beacon_crc_valid = false; + + if (link->csa_block_tx) + ieee80211_stop_vif_queues(local, sdata, + IEEE80211_QUEUE_STOP_REASON_CSA); + mutex_unlock(&local->mtx); + + cfg80211_ch_switch_started_notify(sdata->dev, &csa_ie.chandef, 0, + csa_ie.count, csa_ie.mode, 0); + + if (local->ops->channel_switch) { + /* use driver's channel switch callback */ + drv_channel_switch(local, sdata, &ch_switch); + return; + } + + /* channel switch handled in software */ + if (csa_ie.count <= 1) + ieee80211_queue_work(&local->hw, &link->u.mgd.chswitch_work); + else + mod_timer(&link->u.mgd.chswitch_timer, + TU_TO_EXP_TIME((csa_ie.count - 1) * + cbss->beacon_interval)); + return; + lock_and_drop_connection: + mutex_lock(&local->mtx); + mutex_lock(&local->chanctx_mtx); + drop_connection: + /* + * This is just so that the disconnect flow will know that + * we were trying to switch channel and failed. In case the + * mode is 1 (we are not allowed to Tx), we will know not to + * send a deauthentication frame. Those two fields will be + * reset when the disconnection worker runs. + */ + link->conf->csa_active = true; + link->csa_block_tx = csa_ie.mode; + + ieee80211_queue_work(&local->hw, &ifmgd->csa_connection_drop_work); + mutex_unlock(&local->chanctx_mtx); + mutex_unlock(&local->mtx); +} + +static bool +ieee80211_find_80211h_pwr_constr(struct ieee80211_sub_if_data *sdata, + struct ieee80211_channel *channel, + const u8 *country_ie, u8 country_ie_len, + const u8 *pwr_constr_elem, + int *chan_pwr, int *pwr_reduction) +{ + struct ieee80211_country_ie_triplet *triplet; + int chan = ieee80211_frequency_to_channel(channel->center_freq); + int i, chan_increment; + bool have_chan_pwr = false; + + /* Invalid IE */ + if (country_ie_len % 2 || country_ie_len < IEEE80211_COUNTRY_IE_MIN_LEN) + return false; + + triplet = (void *)(country_ie + 3); + country_ie_len -= 3; + + switch (channel->band) { + default: + WARN_ON_ONCE(1); + fallthrough; + case NL80211_BAND_2GHZ: + case NL80211_BAND_60GHZ: + case NL80211_BAND_LC: + chan_increment = 1; + break; + case NL80211_BAND_5GHZ: + chan_increment = 4; + break; + case NL80211_BAND_6GHZ: + /* + * In the 6 GHz band, the "maximum transmit power level" + * field in the triplets is reserved, and thus will be + * zero and we shouldn't use it to control TX power. + * The actual TX power will be given in the transmit + * power envelope element instead. + */ + return false; + } + + /* find channel */ + while (country_ie_len >= 3) { + u8 first_channel = triplet->chans.first_channel; + + if (first_channel >= IEEE80211_COUNTRY_EXTENSION_ID) + goto next; + + for (i = 0; i < triplet->chans.num_channels; i++) { + if (first_channel + i * chan_increment == chan) { + have_chan_pwr = true; + *chan_pwr = triplet->chans.max_power; + break; + } + } + if (have_chan_pwr) + break; + + next: + triplet++; + country_ie_len -= 3; + } + + if (have_chan_pwr && pwr_constr_elem) + *pwr_reduction = *pwr_constr_elem; + else + *pwr_reduction = 0; + + return have_chan_pwr; +} + +static void ieee80211_find_cisco_dtpc(struct ieee80211_sub_if_data *sdata, + struct ieee80211_channel *channel, + const u8 *cisco_dtpc_ie, + int *pwr_level) +{ + /* From practical testing, the first data byte of the DTPC element + * seems to contain the requested dBm level, and the CLI on Cisco + * APs clearly state the range is -127 to 127 dBm, which indicates + * a signed byte, although it seemingly never actually goes negative. + * The other byte seems to always be zero. + */ + *pwr_level = (__s8)cisco_dtpc_ie[4]; +} + +static u32 ieee80211_handle_pwr_constr(struct ieee80211_link_data *link, + struct ieee80211_channel *channel, + struct ieee80211_mgmt *mgmt, + const u8 *country_ie, u8 country_ie_len, + const u8 *pwr_constr_ie, + const u8 *cisco_dtpc_ie) +{ + struct ieee80211_sub_if_data *sdata = link->sdata; + bool has_80211h_pwr = false, has_cisco_pwr = false; + int chan_pwr = 0, pwr_reduction_80211h = 0; + int pwr_level_cisco, pwr_level_80211h; + int new_ap_level; + __le16 capab = mgmt->u.probe_resp.capab_info; + + if (ieee80211_is_s1g_beacon(mgmt->frame_control)) + return 0; /* TODO */ + + if (country_ie && + (capab & cpu_to_le16(WLAN_CAPABILITY_SPECTRUM_MGMT) || + capab & cpu_to_le16(WLAN_CAPABILITY_RADIO_MEASURE))) { + has_80211h_pwr = ieee80211_find_80211h_pwr_constr( + sdata, channel, country_ie, country_ie_len, + pwr_constr_ie, &chan_pwr, &pwr_reduction_80211h); + pwr_level_80211h = + max_t(int, 0, chan_pwr - pwr_reduction_80211h); + } + + if (cisco_dtpc_ie) { + ieee80211_find_cisco_dtpc( + sdata, channel, cisco_dtpc_ie, &pwr_level_cisco); + has_cisco_pwr = true; + } + + if (!has_80211h_pwr && !has_cisco_pwr) + return 0; + + /* If we have both 802.11h and Cisco DTPC, apply both limits + * by picking the smallest of the two power levels advertised. + */ + if (has_80211h_pwr && + (!has_cisco_pwr || pwr_level_80211h <= pwr_level_cisco)) { + new_ap_level = pwr_level_80211h; + + if (link->ap_power_level == new_ap_level) + return 0; + + sdata_dbg(sdata, + "Limiting TX power to %d (%d - %d) dBm as advertised by %pM\n", + pwr_level_80211h, chan_pwr, pwr_reduction_80211h, + link->u.mgd.bssid); + } else { /* has_cisco_pwr is always true here. */ + new_ap_level = pwr_level_cisco; + + if (link->ap_power_level == new_ap_level) + return 0; + + sdata_dbg(sdata, + "Limiting TX power to %d dBm as advertised by %pM\n", + pwr_level_cisco, link->u.mgd.bssid); + } + + link->ap_power_level = new_ap_level; + if (__ieee80211_recalc_txpower(sdata)) + return BSS_CHANGED_TXPOWER; + return 0; +} + +/* powersave */ +static void ieee80211_enable_ps(struct ieee80211_local *local, + struct ieee80211_sub_if_data *sdata) +{ + struct ieee80211_conf *conf = &local->hw.conf; + + /* + * If we are scanning right now then the parameters will + * take effect when scan finishes. + */ + if (local->scanning) + return; + + if (conf->dynamic_ps_timeout > 0 && + !ieee80211_hw_check(&local->hw, SUPPORTS_DYNAMIC_PS)) { + mod_timer(&local->dynamic_ps_timer, jiffies + + msecs_to_jiffies(conf->dynamic_ps_timeout)); + } else { + if (ieee80211_hw_check(&local->hw, PS_NULLFUNC_STACK)) + ieee80211_send_nullfunc(local, sdata, true); + + if (ieee80211_hw_check(&local->hw, PS_NULLFUNC_STACK) && + ieee80211_hw_check(&local->hw, REPORTS_TX_ACK_STATUS)) + return; + + conf->flags |= IEEE80211_CONF_PS; + ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS); + } +} + +static void ieee80211_change_ps(struct ieee80211_local *local) +{ + struct ieee80211_conf *conf = &local->hw.conf; + + if (local->ps_sdata) { + ieee80211_enable_ps(local, local->ps_sdata); + } else if (conf->flags & IEEE80211_CONF_PS) { + conf->flags &= ~IEEE80211_CONF_PS; + ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS); + del_timer_sync(&local->dynamic_ps_timer); + cancel_work_sync(&local->dynamic_ps_enable_work); + } +} + +static bool ieee80211_powersave_allowed(struct ieee80211_sub_if_data *sdata) +{ + struct ieee80211_local *local = sdata->local; + struct ieee80211_if_managed *mgd = &sdata->u.mgd; + struct sta_info *sta = NULL; + bool authorized = false; + + if (!mgd->powersave) + return false; + + if (mgd->broken_ap) + return false; + + if (!mgd->associated) + return false; + + if (mgd->flags & IEEE80211_STA_CONNECTION_POLL) + return false; + + if (!(local->hw.wiphy->flags & WIPHY_FLAG_SUPPORTS_MLO) && + !sdata->deflink.u.mgd.have_beacon) + return false; + + rcu_read_lock(); + sta = sta_info_get(sdata, sdata->vif.cfg.ap_addr); + if (sta) + authorized = test_sta_flag(sta, WLAN_STA_AUTHORIZED); + rcu_read_unlock(); + + return authorized; +} + +/* need to hold RTNL or interface lock */ +void ieee80211_recalc_ps(struct ieee80211_local *local) +{ + struct ieee80211_sub_if_data *sdata, *found = NULL; + int count = 0; + int timeout; + + if (!ieee80211_hw_check(&local->hw, SUPPORTS_PS) || + ieee80211_hw_check(&local->hw, SUPPORTS_DYNAMIC_PS)) { + local->ps_sdata = NULL; + return; + } + + list_for_each_entry(sdata, &local->interfaces, list) { + if (!ieee80211_sdata_running(sdata)) + continue; + if (sdata->vif.type == NL80211_IFTYPE_AP) { + /* If an AP vif is found, then disable PS + * by setting the count to zero thereby setting + * ps_sdata to NULL. + */ + count = 0; + break; + } + if (sdata->vif.type != NL80211_IFTYPE_STATION) + continue; + found = sdata; + count++; + } + + if (count == 1 && ieee80211_powersave_allowed(found)) { + u8 dtimper = found->deflink.u.mgd.dtim_period; + + timeout = local->dynamic_ps_forced_timeout; + if (timeout < 0) + timeout = 100; + local->hw.conf.dynamic_ps_timeout = timeout; + + /* If the TIM IE is invalid, pretend the value is 1 */ + if (!dtimper) + dtimper = 1; + + local->hw.conf.ps_dtim_period = dtimper; + local->ps_sdata = found; + } else { + local->ps_sdata = NULL; + } + + ieee80211_change_ps(local); +} + +void ieee80211_recalc_ps_vif(struct ieee80211_sub_if_data *sdata) +{ + bool ps_allowed = ieee80211_powersave_allowed(sdata); + + if (sdata->vif.cfg.ps != ps_allowed) { + sdata->vif.cfg.ps = ps_allowed; + ieee80211_vif_cfg_change_notify(sdata, BSS_CHANGED_PS); + } +} + +void ieee80211_dynamic_ps_disable_work(struct work_struct *work) +{ + struct ieee80211_local *local = + container_of(work, struct ieee80211_local, + dynamic_ps_disable_work); + + if (local->hw.conf.flags & IEEE80211_CONF_PS) { + local->hw.conf.flags &= ~IEEE80211_CONF_PS; + ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS); + } + + ieee80211_wake_queues_by_reason(&local->hw, + IEEE80211_MAX_QUEUE_MAP, + IEEE80211_QUEUE_STOP_REASON_PS, + false); +} + +void ieee80211_dynamic_ps_enable_work(struct work_struct *work) +{ + struct ieee80211_local *local = + container_of(work, struct ieee80211_local, + dynamic_ps_enable_work); + struct ieee80211_sub_if_data *sdata = local->ps_sdata; + struct ieee80211_if_managed *ifmgd; + unsigned long flags; + int q; + + /* can only happen when PS was just disabled anyway */ + if (!sdata) + return; + + ifmgd = &sdata->u.mgd; + + if (local->hw.conf.flags & IEEE80211_CONF_PS) + return; + + if (local->hw.conf.dynamic_ps_timeout > 0) { + /* don't enter PS if TX frames are pending */ + if (drv_tx_frames_pending(local)) { + mod_timer(&local->dynamic_ps_timer, jiffies + + msecs_to_jiffies( + local->hw.conf.dynamic_ps_timeout)); + return; + } + + /* + * transmission can be stopped by others which leads to + * dynamic_ps_timer expiry. Postpone the ps timer if it + * is not the actual idle state. + */ + spin_lock_irqsave(&local->queue_stop_reason_lock, flags); + for (q = 0; q < local->hw.queues; q++) { + if (local->queue_stop_reasons[q]) { + spin_unlock_irqrestore(&local->queue_stop_reason_lock, + flags); + mod_timer(&local->dynamic_ps_timer, jiffies + + msecs_to_jiffies( + local->hw.conf.dynamic_ps_timeout)); + return; + } + } + spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags); + } + + if (ieee80211_hw_check(&local->hw, PS_NULLFUNC_STACK) && + !(ifmgd->flags & IEEE80211_STA_NULLFUNC_ACKED)) { + if (drv_tx_frames_pending(local)) { + mod_timer(&local->dynamic_ps_timer, jiffies + + msecs_to_jiffies( + local->hw.conf.dynamic_ps_timeout)); + } else { + ieee80211_send_nullfunc(local, sdata, true); + /* Flush to get the tx status of nullfunc frame */ + ieee80211_flush_queues(local, sdata, false); + } + } + + if (!(ieee80211_hw_check(&local->hw, REPORTS_TX_ACK_STATUS) && + ieee80211_hw_check(&local->hw, PS_NULLFUNC_STACK)) || + (ifmgd->flags & IEEE80211_STA_NULLFUNC_ACKED)) { + ifmgd->flags &= ~IEEE80211_STA_NULLFUNC_ACKED; + local->hw.conf.flags |= IEEE80211_CONF_PS; + ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS); + } +} + +void ieee80211_dynamic_ps_timer(struct timer_list *t) +{ + struct ieee80211_local *local = from_timer(local, t, dynamic_ps_timer); + + ieee80211_queue_work(&local->hw, &local->dynamic_ps_enable_work); +} + +void ieee80211_dfs_cac_timer_work(struct work_struct *work) +{ + struct delayed_work *delayed_work = to_delayed_work(work); + struct ieee80211_link_data *link = + container_of(delayed_work, struct ieee80211_link_data, + dfs_cac_timer_work); + struct cfg80211_chan_def chandef = link->conf->chandef; + struct ieee80211_sub_if_data *sdata = link->sdata; + + mutex_lock(&sdata->local->mtx); + if (sdata->wdev.cac_started) { + ieee80211_link_release_channel(link); + cfg80211_cac_event(sdata->dev, &chandef, + NL80211_RADAR_CAC_FINISHED, + GFP_KERNEL); + } + mutex_unlock(&sdata->local->mtx); +} + +static bool +__ieee80211_sta_handle_tspec_ac_params(struct ieee80211_sub_if_data *sdata) +{ + struct ieee80211_local *local = sdata->local; + struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; + bool ret = false; + int ac; + + if (local->hw.queues < IEEE80211_NUM_ACS) + return false; + + for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) { + struct ieee80211_sta_tx_tspec *tx_tspec = &ifmgd->tx_tspec[ac]; + int non_acm_ac; + unsigned long now = jiffies; + + if (tx_tspec->action == TX_TSPEC_ACTION_NONE && + tx_tspec->admitted_time && + time_after(now, tx_tspec->time_slice_start + HZ)) { + tx_tspec->consumed_tx_time = 0; + tx_tspec->time_slice_start = now; + + if (tx_tspec->downgraded) + tx_tspec->action = + TX_TSPEC_ACTION_STOP_DOWNGRADE; + } + + switch (tx_tspec->action) { + case TX_TSPEC_ACTION_STOP_DOWNGRADE: + /* take the original parameters */ + if (drv_conf_tx(local, &sdata->deflink, ac, + &sdata->deflink.tx_conf[ac])) + link_err(&sdata->deflink, + "failed to set TX queue parameters for queue %d\n", + ac); + tx_tspec->action = TX_TSPEC_ACTION_NONE; + tx_tspec->downgraded = false; + ret = true; + break; + case TX_TSPEC_ACTION_DOWNGRADE: + if (time_after(now, tx_tspec->time_slice_start + HZ)) { + tx_tspec->action = TX_TSPEC_ACTION_NONE; + ret = true; + break; + } + /* downgrade next lower non-ACM AC */ + for (non_acm_ac = ac + 1; + non_acm_ac < IEEE80211_NUM_ACS; + non_acm_ac++) + if (!(sdata->wmm_acm & BIT(7 - 2 * non_acm_ac))) + break; + /* Usually the loop will result in using BK even if it + * requires admission control, but such a configuration + * makes no sense and we have to transmit somehow - the + * AC selection does the same thing. + * If we started out trying to downgrade from BK, then + * the extra condition here might be needed. + */ + if (non_acm_ac >= IEEE80211_NUM_ACS) + non_acm_ac = IEEE80211_AC_BK; + if (drv_conf_tx(local, &sdata->deflink, ac, + &sdata->deflink.tx_conf[non_acm_ac])) + link_err(&sdata->deflink, + "failed to set TX queue parameters for queue %d\n", + ac); + tx_tspec->action = TX_TSPEC_ACTION_NONE; + ret = true; + schedule_delayed_work(&ifmgd->tx_tspec_wk, + tx_tspec->time_slice_start + HZ - now + 1); + break; + case TX_TSPEC_ACTION_NONE: + /* nothing now */ + break; + } + } + + return ret; +} + +void ieee80211_sta_handle_tspec_ac_params(struct ieee80211_sub_if_data *sdata) +{ + if (__ieee80211_sta_handle_tspec_ac_params(sdata)) + ieee80211_link_info_change_notify(sdata, &sdata->deflink, + BSS_CHANGED_QOS); +} + +static void ieee80211_sta_handle_tspec_ac_params_wk(struct work_struct *work) +{ + struct ieee80211_sub_if_data *sdata; + + sdata = container_of(work, struct ieee80211_sub_if_data, + u.mgd.tx_tspec_wk.work); + ieee80211_sta_handle_tspec_ac_params(sdata); +} + +void ieee80211_mgd_set_link_qos_params(struct ieee80211_link_data *link) +{ + struct ieee80211_sub_if_data *sdata = link->sdata; + struct ieee80211_local *local = sdata->local; + struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; + struct ieee80211_tx_queue_params *params = link->tx_conf; + u8 ac; + + for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) { + mlme_dbg(sdata, + "WMM AC=%d acm=%d aifs=%d cWmin=%d cWmax=%d txop=%d uapsd=%d, downgraded=%d\n", + ac, params[ac].acm, + params[ac].aifs, params[ac].cw_min, params[ac].cw_max, + params[ac].txop, params[ac].uapsd, + ifmgd->tx_tspec[ac].downgraded); + if (!ifmgd->tx_tspec[ac].downgraded && + drv_conf_tx(local, link, ac, ¶ms[ac])) + link_err(link, + "failed to set TX queue parameters for AC %d\n", + ac); + } +} + +/* MLME */ +static bool +ieee80211_sta_wmm_params(struct ieee80211_local *local, + struct ieee80211_link_data *link, + const u8 *wmm_param, size_t wmm_param_len, + const struct ieee80211_mu_edca_param_set *mu_edca) +{ + struct ieee80211_sub_if_data *sdata = link->sdata; + struct ieee80211_tx_queue_params params[IEEE80211_NUM_ACS]; + struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; + size_t left; + int count, mu_edca_count, ac; + const u8 *pos; + u8 uapsd_queues = 0; + + if (!local->ops->conf_tx) + return false; + + if (local->hw.queues < IEEE80211_NUM_ACS) + return false; + + if (!wmm_param) + return false; + + if (wmm_param_len < 8 || wmm_param[5] /* version */ != 1) + return false; + + if (ifmgd->flags & IEEE80211_STA_UAPSD_ENABLED) + uapsd_queues = ifmgd->uapsd_queues; + + count = wmm_param[6] & 0x0f; + /* -1 is the initial value of ifmgd->mu_edca_last_param_set. + * if mu_edca was preset before and now it disappeared tell + * the driver about it. + */ + mu_edca_count = mu_edca ? mu_edca->mu_qos_info & 0x0f : -1; + if (count == link->u.mgd.wmm_last_param_set && + mu_edca_count == link->u.mgd.mu_edca_last_param_set) + return false; + link->u.mgd.wmm_last_param_set = count; + link->u.mgd.mu_edca_last_param_set = mu_edca_count; + + pos = wmm_param + 8; + left = wmm_param_len - 8; + + memset(¶ms, 0, sizeof(params)); + + sdata->wmm_acm = 0; + for (; left >= 4; left -= 4, pos += 4) { + int aci = (pos[0] >> 5) & 0x03; + int acm = (pos[0] >> 4) & 0x01; + bool uapsd = false; + + switch (aci) { + case 1: /* AC_BK */ + ac = IEEE80211_AC_BK; + if (acm) + sdata->wmm_acm |= BIT(1) | BIT(2); /* BK/- */ + if (uapsd_queues & IEEE80211_WMM_IE_STA_QOSINFO_AC_BK) + uapsd = true; + params[ac].mu_edca = !!mu_edca; + if (mu_edca) + params[ac].mu_edca_param_rec = mu_edca->ac_bk; + break; + case 2: /* AC_VI */ + ac = IEEE80211_AC_VI; + if (acm) + sdata->wmm_acm |= BIT(4) | BIT(5); /* CL/VI */ + if (uapsd_queues & IEEE80211_WMM_IE_STA_QOSINFO_AC_VI) + uapsd = true; + params[ac].mu_edca = !!mu_edca; + if (mu_edca) + params[ac].mu_edca_param_rec = mu_edca->ac_vi; + break; + case 3: /* AC_VO */ + ac = IEEE80211_AC_VO; + if (acm) + sdata->wmm_acm |= BIT(6) | BIT(7); /* VO/NC */ + if (uapsd_queues & IEEE80211_WMM_IE_STA_QOSINFO_AC_VO) + uapsd = true; + params[ac].mu_edca = !!mu_edca; + if (mu_edca) + params[ac].mu_edca_param_rec = mu_edca->ac_vo; + break; + case 0: /* AC_BE */ + default: + ac = IEEE80211_AC_BE; + if (acm) + sdata->wmm_acm |= BIT(0) | BIT(3); /* BE/EE */ + if (uapsd_queues & IEEE80211_WMM_IE_STA_QOSINFO_AC_BE) + uapsd = true; + params[ac].mu_edca = !!mu_edca; + if (mu_edca) + params[ac].mu_edca_param_rec = mu_edca->ac_be; + break; + } + + params[ac].aifs = pos[0] & 0x0f; + + if (params[ac].aifs < 2) { + sdata_info(sdata, + "AP has invalid WMM params (AIFSN=%d for ACI %d), will use 2\n", + params[ac].aifs, aci); + params[ac].aifs = 2; + } + params[ac].cw_max = ecw2cw((pos[1] & 0xf0) >> 4); + params[ac].cw_min = ecw2cw(pos[1] & 0x0f); + params[ac].txop = get_unaligned_le16(pos + 2); + params[ac].acm = acm; + params[ac].uapsd = uapsd; + + if (params[ac].cw_min == 0 || + params[ac].cw_min > params[ac].cw_max) { + sdata_info(sdata, + "AP has invalid WMM params (CWmin/max=%d/%d for ACI %d), using defaults\n", + params[ac].cw_min, params[ac].cw_max, aci); + return false; + } + ieee80211_regulatory_limit_wmm_params(sdata, ¶ms[ac], ac); + } + + /* WMM specification requires all 4 ACIs. */ + for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) { + if (params[ac].cw_min == 0) { + sdata_info(sdata, + "AP has invalid WMM params (missing AC %d), using defaults\n", + ac); + return false; + } + } + + for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) + link->tx_conf[ac] = params[ac]; + + ieee80211_mgd_set_link_qos_params(link); + + /* enable WMM or activate new settings */ + link->conf->qos = true; + return true; +} + +static void __ieee80211_stop_poll(struct ieee80211_sub_if_data *sdata) +{ + lockdep_assert_held(&sdata->local->mtx); + + sdata->u.mgd.flags &= ~IEEE80211_STA_CONNECTION_POLL; + ieee80211_run_deferred_scan(sdata->local); +} + +static void ieee80211_stop_poll(struct ieee80211_sub_if_data *sdata) +{ + mutex_lock(&sdata->local->mtx); + __ieee80211_stop_poll(sdata); + mutex_unlock(&sdata->local->mtx); +} + +static u32 ieee80211_handle_bss_capability(struct ieee80211_link_data *link, + u16 capab, bool erp_valid, u8 erp) +{ + struct ieee80211_bss_conf *bss_conf = link->conf; + struct ieee80211_supported_band *sband; + u32 changed = 0; + bool use_protection; + bool use_short_preamble; + bool use_short_slot; + + sband = ieee80211_get_link_sband(link); + if (!sband) + return changed; + + if (erp_valid) { + use_protection = (erp & WLAN_ERP_USE_PROTECTION) != 0; + use_short_preamble = (erp & WLAN_ERP_BARKER_PREAMBLE) == 0; + } else { + use_protection = false; + use_short_preamble = !!(capab & WLAN_CAPABILITY_SHORT_PREAMBLE); + } + + use_short_slot = !!(capab & WLAN_CAPABILITY_SHORT_SLOT_TIME); + if (sband->band == NL80211_BAND_5GHZ || + sband->band == NL80211_BAND_6GHZ) + use_short_slot = true; + + if (use_protection != bss_conf->use_cts_prot) { + bss_conf->use_cts_prot = use_protection; + changed |= BSS_CHANGED_ERP_CTS_PROT; + } + + if (use_short_preamble != bss_conf->use_short_preamble) { + bss_conf->use_short_preamble = use_short_preamble; + changed |= BSS_CHANGED_ERP_PREAMBLE; + } + + if (use_short_slot != bss_conf->use_short_slot) { + bss_conf->use_short_slot = use_short_slot; + changed |= BSS_CHANGED_ERP_SLOT; + } + + return changed; +} + +static u32 ieee80211_link_set_associated(struct ieee80211_link_data *link, + struct cfg80211_bss *cbss) +{ + struct ieee80211_sub_if_data *sdata = link->sdata; + struct ieee80211_bss_conf *bss_conf = link->conf; + struct ieee80211_bss *bss = (void *)cbss->priv; + u32 changed = BSS_CHANGED_QOS; + + /* not really used in MLO */ + sdata->u.mgd.beacon_timeout = + usecs_to_jiffies(ieee80211_tu_to_usec(beacon_loss_count * + bss_conf->beacon_int)); + + changed |= ieee80211_handle_bss_capability(link, + bss_conf->assoc_capability, + bss->has_erp_value, + bss->erp_value); + + ieee80211_check_rate_mask(link); + + link->u.mgd.bss = cbss; + memcpy(link->u.mgd.bssid, cbss->bssid, ETH_ALEN); + + if (sdata->vif.p2p || + sdata->vif.driver_flags & IEEE80211_VIF_GET_NOA_UPDATE) { + const struct cfg80211_bss_ies *ies; + + rcu_read_lock(); + ies = rcu_dereference(cbss->ies); + if (ies) { + int ret; + + ret = cfg80211_get_p2p_attr( + ies->data, ies->len, + IEEE80211_P2P_ATTR_ABSENCE_NOTICE, + (u8 *) &bss_conf->p2p_noa_attr, + sizeof(bss_conf->p2p_noa_attr)); + if (ret >= 2) { + link->u.mgd.p2p_noa_index = + bss_conf->p2p_noa_attr.index; + changed |= BSS_CHANGED_P2P_PS; + } + } + rcu_read_unlock(); + } + + if (link->u.mgd.have_beacon) { + bss_conf->beacon_rate = bss->beacon_rate; + changed |= BSS_CHANGED_BEACON_INFO; + } else { + bss_conf->beacon_rate = NULL; + } + + /* Tell the driver to monitor connection quality (if supported) */ + if (sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI && + bss_conf->cqm_rssi_thold) + changed |= BSS_CHANGED_CQM; + + return changed; +} + +static void ieee80211_set_associated(struct ieee80211_sub_if_data *sdata, + struct ieee80211_mgd_assoc_data *assoc_data, + u64 changed[IEEE80211_MLD_MAX_NUM_LINKS]) +{ + struct ieee80211_local *local = sdata->local; + struct ieee80211_vif_cfg *vif_cfg = &sdata->vif.cfg; + u64 vif_changed = BSS_CHANGED_ASSOC; + unsigned int link_id; + + sdata->u.mgd.associated = true; + + for (link_id = 0; link_id < IEEE80211_MLD_MAX_NUM_LINKS; link_id++) { + struct cfg80211_bss *cbss = assoc_data->link[link_id].bss; + struct ieee80211_link_data *link; + + if (!cbss || + assoc_data->link[link_id].status != WLAN_STATUS_SUCCESS) + continue; + + link = sdata_dereference(sdata->link[link_id], sdata); + if (WARN_ON(!link)) + return; + + changed[link_id] |= ieee80211_link_set_associated(link, cbss); + } + + /* just to be sure */ + ieee80211_stop_poll(sdata); + + ieee80211_led_assoc(local, 1); + + vif_cfg->assoc = 1; + + /* Enable ARP filtering */ + if (vif_cfg->arp_addr_cnt) + vif_changed |= BSS_CHANGED_ARP_FILTER; + + if (sdata->vif.valid_links) { + for (link_id = 0; + link_id < IEEE80211_MLD_MAX_NUM_LINKS; + link_id++) { + struct ieee80211_link_data *link; + struct cfg80211_bss *cbss = assoc_data->link[link_id].bss; + + if (!cbss || + assoc_data->link[link_id].status != WLAN_STATUS_SUCCESS) + continue; + + link = sdata_dereference(sdata->link[link_id], sdata); + if (WARN_ON(!link)) + return; + + ieee80211_link_info_change_notify(sdata, link, + changed[link_id]); + + ieee80211_recalc_smps(sdata, link); + } + + ieee80211_vif_cfg_change_notify(sdata, vif_changed); + } else { + ieee80211_bss_info_change_notify(sdata, + vif_changed | changed[0]); + } + + mutex_lock(&local->iflist_mtx); + ieee80211_recalc_ps(local); + mutex_unlock(&local->iflist_mtx); + + /* leave this here to not change ordering in non-MLO cases */ + if (!sdata->vif.valid_links) + ieee80211_recalc_smps(sdata, &sdata->deflink); + ieee80211_recalc_ps_vif(sdata); + + netif_carrier_on(sdata->dev); +} + +static void ieee80211_set_disassoc(struct ieee80211_sub_if_data *sdata, + u16 stype, u16 reason, bool tx, + u8 *frame_buf) +{ + struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; + struct ieee80211_local *local = sdata->local; + unsigned int link_id; + u32 changed = 0; + struct ieee80211_prep_tx_info info = { + .subtype = stype, + }; + + sdata_assert_lock(sdata); + + if (WARN_ON_ONCE(tx && !frame_buf)) + return; + + if (WARN_ON(!ifmgd->associated)) + return; + + ieee80211_stop_poll(sdata); + + ifmgd->associated = false; + + /* other links will be destroyed */ + sdata->deflink.u.mgd.bss = NULL; + + netif_carrier_off(sdata->dev); + + /* + * if we want to get out of ps before disassoc (why?) we have + * to do it before sending disassoc, as otherwise the null-packet + * won't be valid. + */ + if (local->hw.conf.flags & IEEE80211_CONF_PS) { + local->hw.conf.flags &= ~IEEE80211_CONF_PS; + ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS); + } + local->ps_sdata = NULL; + + /* disable per-vif ps */ + ieee80211_recalc_ps_vif(sdata); + + /* make sure ongoing transmission finishes */ + synchronize_net(); + + /* + * drop any frame before deauth/disassoc, this can be data or + * management frame. Since we are disconnecting, we should not + * insist sending these frames which can take time and delay + * the disconnection and possible the roaming. + */ + if (tx) + ieee80211_flush_queues(local, sdata, true); + + /* deauthenticate/disassociate now */ + if (tx || frame_buf) { + /* + * In multi channel scenarios guarantee that the virtual + * interface is granted immediate airtime to transmit the + * deauthentication frame by calling mgd_prepare_tx, if the + * driver requested so. + */ + if (ieee80211_hw_check(&local->hw, DEAUTH_NEED_MGD_TX_PREP) && + !sdata->deflink.u.mgd.have_beacon) { + drv_mgd_prepare_tx(sdata->local, sdata, &info); + } + + ieee80211_send_deauth_disassoc(sdata, sdata->vif.cfg.ap_addr, + sdata->vif.cfg.ap_addr, stype, + reason, tx, frame_buf); + } + + /* flush out frame - make sure the deauth was actually sent */ + if (tx) + ieee80211_flush_queues(local, sdata, false); + + drv_mgd_complete_tx(sdata->local, sdata, &info); + + /* clear AP addr only after building the needed mgmt frames */ + eth_zero_addr(sdata->deflink.u.mgd.bssid); + eth_zero_addr(sdata->vif.cfg.ap_addr); + + sdata->vif.cfg.ssid_len = 0; + + /* remove AP and TDLS peers */ + sta_info_flush(sdata); + + /* finally reset all BSS / config parameters */ + if (!sdata->vif.valid_links) + changed |= ieee80211_reset_erp_info(sdata); + + ieee80211_led_assoc(local, 0); + changed |= BSS_CHANGED_ASSOC; + sdata->vif.cfg.assoc = false; + + sdata->deflink.u.mgd.p2p_noa_index = -1; + memset(&sdata->vif.bss_conf.p2p_noa_attr, 0, + sizeof(sdata->vif.bss_conf.p2p_noa_attr)); + + /* on the next assoc, re-program HT/VHT parameters */ + memset(&ifmgd->ht_capa, 0, sizeof(ifmgd->ht_capa)); + memset(&ifmgd->ht_capa_mask, 0, sizeof(ifmgd->ht_capa_mask)); + memset(&ifmgd->vht_capa, 0, sizeof(ifmgd->vht_capa)); + memset(&ifmgd->vht_capa_mask, 0, sizeof(ifmgd->vht_capa_mask)); + + /* + * reset MU-MIMO ownership and group data in default link, + * if used, other links are destroyed + */ + memset(sdata->vif.bss_conf.mu_group.membership, 0, + sizeof(sdata->vif.bss_conf.mu_group.membership)); + memset(sdata->vif.bss_conf.mu_group.position, 0, + sizeof(sdata->vif.bss_conf.mu_group.position)); + if (!sdata->vif.valid_links) + changed |= BSS_CHANGED_MU_GROUPS; + sdata->vif.bss_conf.mu_mimo_owner = false; + + sdata->deflink.ap_power_level = IEEE80211_UNSET_POWER_LEVEL; + + del_timer_sync(&local->dynamic_ps_timer); + cancel_work_sync(&local->dynamic_ps_enable_work); + + /* Disable ARP filtering */ + if (sdata->vif.cfg.arp_addr_cnt) + changed |= BSS_CHANGED_ARP_FILTER; + + sdata->vif.bss_conf.qos = false; + if (!sdata->vif.valid_links) { + changed |= BSS_CHANGED_QOS; + /* The BSSID (not really interesting) and HT changed */ + changed |= BSS_CHANGED_BSSID | BSS_CHANGED_HT; + ieee80211_bss_info_change_notify(sdata, changed); + } else { + ieee80211_vif_cfg_change_notify(sdata, changed); + } + + /* disassociated - set to defaults now */ + ieee80211_set_wmm_default(&sdata->deflink, false, false); + + del_timer_sync(&sdata->u.mgd.conn_mon_timer); + del_timer_sync(&sdata->u.mgd.bcn_mon_timer); + del_timer_sync(&sdata->u.mgd.timer); + del_timer_sync(&sdata->deflink.u.mgd.chswitch_timer); + + sdata->vif.bss_conf.dtim_period = 0; + sdata->vif.bss_conf.beacon_rate = NULL; + + sdata->deflink.u.mgd.have_beacon = false; + sdata->deflink.u.mgd.tracking_signal_avg = false; + sdata->deflink.u.mgd.disable_wmm_tracking = false; + + ifmgd->flags = 0; + sdata->deflink.u.mgd.conn_flags = 0; + mutex_lock(&local->mtx); + + for (link_id = 0; link_id < ARRAY_SIZE(sdata->link); link_id++) { + struct ieee80211_link_data *link; + + link = sdata_dereference(sdata->link[link_id], sdata); + if (!link) + continue; + ieee80211_link_release_channel(link); + } + + sdata->vif.bss_conf.csa_active = false; + sdata->deflink.u.mgd.csa_waiting_bcn = false; + sdata->deflink.u.mgd.csa_ignored_same_chan = false; + if (sdata->deflink.csa_block_tx) { + ieee80211_wake_vif_queues(local, sdata, + IEEE80211_QUEUE_STOP_REASON_CSA); + sdata->deflink.csa_block_tx = false; + } + mutex_unlock(&local->mtx); + + /* existing TX TSPEC sessions no longer exist */ + memset(ifmgd->tx_tspec, 0, sizeof(ifmgd->tx_tspec)); + cancel_delayed_work_sync(&ifmgd->tx_tspec_wk); + + sdata->vif.bss_conf.pwr_reduction = 0; + sdata->vif.bss_conf.tx_pwr_env_num = 0; + memset(sdata->vif.bss_conf.tx_pwr_env, 0, + sizeof(sdata->vif.bss_conf.tx_pwr_env)); + + ieee80211_vif_set_links(sdata, 0); +} + +static void ieee80211_reset_ap_probe(struct ieee80211_sub_if_data *sdata) +{ + struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; + struct ieee80211_local *local = sdata->local; + + mutex_lock(&local->mtx); + if (!(ifmgd->flags & IEEE80211_STA_CONNECTION_POLL)) + goto out; + + __ieee80211_stop_poll(sdata); + + mutex_lock(&local->iflist_mtx); + ieee80211_recalc_ps(local); + mutex_unlock(&local->iflist_mtx); + + if (ieee80211_hw_check(&sdata->local->hw, CONNECTION_MONITOR)) + goto out; + + /* + * We've received a probe response, but are not sure whether + * we have or will be receiving any beacons or data, so let's + * schedule the timers again, just in case. + */ + ieee80211_sta_reset_beacon_monitor(sdata); + + mod_timer(&ifmgd->conn_mon_timer, + round_jiffies_up(jiffies + + IEEE80211_CONNECTION_IDLE_TIME)); +out: + mutex_unlock(&local->mtx); +} + +static void ieee80211_sta_tx_wmm_ac_notify(struct ieee80211_sub_if_data *sdata, + struct ieee80211_hdr *hdr, + u16 tx_time) +{ + struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; + u16 tid; + int ac; + struct ieee80211_sta_tx_tspec *tx_tspec; + unsigned long now = jiffies; + + if (!ieee80211_is_data_qos(hdr->frame_control)) + return; + + tid = ieee80211_get_tid(hdr); + ac = ieee80211_ac_from_tid(tid); + tx_tspec = &ifmgd->tx_tspec[ac]; + + if (likely(!tx_tspec->admitted_time)) + return; + + if (time_after(now, tx_tspec->time_slice_start + HZ)) { + tx_tspec->consumed_tx_time = 0; + tx_tspec->time_slice_start = now; + + if (tx_tspec->downgraded) { + tx_tspec->action = TX_TSPEC_ACTION_STOP_DOWNGRADE; + schedule_delayed_work(&ifmgd->tx_tspec_wk, 0); + } + } + + if (tx_tspec->downgraded) + return; + + tx_tspec->consumed_tx_time += tx_time; + + if (tx_tspec->consumed_tx_time >= tx_tspec->admitted_time) { + tx_tspec->downgraded = true; + tx_tspec->action = TX_TSPEC_ACTION_DOWNGRADE; + schedule_delayed_work(&ifmgd->tx_tspec_wk, 0); + } +} + +void ieee80211_sta_tx_notify(struct ieee80211_sub_if_data *sdata, + struct ieee80211_hdr *hdr, bool ack, u16 tx_time) +{ + ieee80211_sta_tx_wmm_ac_notify(sdata, hdr, tx_time); + + if (!ieee80211_is_any_nullfunc(hdr->frame_control) || + !sdata->u.mgd.probe_send_count) + return; + + if (ack) + sdata->u.mgd.probe_send_count = 0; + else + sdata->u.mgd.nullfunc_failed = true; + ieee80211_queue_work(&sdata->local->hw, &sdata->work); +} + +static void ieee80211_mlme_send_probe_req(struct ieee80211_sub_if_data *sdata, + const u8 *src, const u8 *dst, + const u8 *ssid, size_t ssid_len, + struct ieee80211_channel *channel) +{ + struct sk_buff *skb; + + skb = ieee80211_build_probe_req(sdata, src, dst, (u32)-1, channel, + ssid, ssid_len, NULL, 0, + IEEE80211_PROBE_FLAG_DIRECTED); + if (skb) + ieee80211_tx_skb(sdata, skb); +} + +static void ieee80211_mgd_probe_ap_send(struct ieee80211_sub_if_data *sdata) +{ + struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; + u8 *dst = sdata->vif.cfg.ap_addr; + u8 unicast_limit = max(1, max_probe_tries - 3); + struct sta_info *sta; + + if (WARN_ON(sdata->vif.valid_links)) + return; + + /* + * Try sending broadcast probe requests for the last three + * probe requests after the first ones failed since some + * buggy APs only support broadcast probe requests. + */ + if (ifmgd->probe_send_count >= unicast_limit) + dst = NULL; + + /* + * When the hardware reports an accurate Tx ACK status, it's + * better to send a nullfunc frame instead of a probe request, + * as it will kick us off the AP quickly if we aren't associated + * anymore. The timeout will be reset if the frame is ACKed by + * the AP. + */ + ifmgd->probe_send_count++; + + if (dst) { + mutex_lock(&sdata->local->sta_mtx); + sta = sta_info_get(sdata, dst); + if (!WARN_ON(!sta)) + ieee80211_check_fast_rx(sta); + mutex_unlock(&sdata->local->sta_mtx); + } + + if (ieee80211_hw_check(&sdata->local->hw, REPORTS_TX_ACK_STATUS)) { + ifmgd->nullfunc_failed = false; + ieee80211_send_nullfunc(sdata->local, sdata, false); + } else { + ieee80211_mlme_send_probe_req(sdata, sdata->vif.addr, dst, + sdata->vif.cfg.ssid, + sdata->vif.cfg.ssid_len, + sdata->deflink.u.mgd.bss->channel); + } + + ifmgd->probe_timeout = jiffies + msecs_to_jiffies(probe_wait_ms); + run_again(sdata, ifmgd->probe_timeout); +} + +static void ieee80211_mgd_probe_ap(struct ieee80211_sub_if_data *sdata, + bool beacon) +{ + struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; + bool already = false; + + if (WARN_ON(sdata->vif.valid_links)) + return; + + if (!ieee80211_sdata_running(sdata)) + return; + + sdata_lock(sdata); + + if (!ifmgd->associated) + goto out; + + mutex_lock(&sdata->local->mtx); + + if (sdata->local->tmp_channel || sdata->local->scanning) { + mutex_unlock(&sdata->local->mtx); + goto out; + } + + if (sdata->local->suspending) { + /* reschedule after resume */ + mutex_unlock(&sdata->local->mtx); + ieee80211_reset_ap_probe(sdata); + goto out; + } + + if (beacon) { + mlme_dbg_ratelimited(sdata, + "detected beacon loss from AP (missed %d beacons) - probing\n", + beacon_loss_count); + + ieee80211_cqm_beacon_loss_notify(&sdata->vif, GFP_KERNEL); + } + + /* + * The driver/our work has already reported this event or the + * connection monitoring has kicked in and we have already sent + * a probe request. Or maybe the AP died and the driver keeps + * reporting until we disassociate... + * + * In either case we have to ignore the current call to this + * function (except for setting the correct probe reason bit) + * because otherwise we would reset the timer every time and + * never check whether we received a probe response! + */ + if (ifmgd->flags & IEEE80211_STA_CONNECTION_POLL) + already = true; + + ifmgd->flags |= IEEE80211_STA_CONNECTION_POLL; + + mutex_unlock(&sdata->local->mtx); + + if (already) + goto out; + + mutex_lock(&sdata->local->iflist_mtx); + ieee80211_recalc_ps(sdata->local); + mutex_unlock(&sdata->local->iflist_mtx); + + ifmgd->probe_send_count = 0; + ieee80211_mgd_probe_ap_send(sdata); + out: + sdata_unlock(sdata); +} + +struct sk_buff *ieee80211_ap_probereq_get(struct ieee80211_hw *hw, + struct ieee80211_vif *vif) +{ + struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); + struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; + struct cfg80211_bss *cbss; + struct sk_buff *skb; + const struct element *ssid; + int ssid_len; + + if (WARN_ON(sdata->vif.type != NL80211_IFTYPE_STATION || + sdata->vif.valid_links)) + return NULL; + + sdata_assert_lock(sdata); + + if (ifmgd->associated) + cbss = sdata->deflink.u.mgd.bss; + else if (ifmgd->auth_data) + cbss = ifmgd->auth_data->bss; + else if (ifmgd->assoc_data && ifmgd->assoc_data->link[0].bss) + cbss = ifmgd->assoc_data->link[0].bss; + else + return NULL; + + rcu_read_lock(); + ssid = ieee80211_bss_get_elem(cbss, WLAN_EID_SSID); + if (WARN_ONCE(!ssid || ssid->datalen > IEEE80211_MAX_SSID_LEN, + "invalid SSID element (len=%d)", + ssid ? ssid->datalen : -1)) + ssid_len = 0; + else + ssid_len = ssid->datalen; + + skb = ieee80211_build_probe_req(sdata, sdata->vif.addr, cbss->bssid, + (u32) -1, cbss->channel, + ssid->data, ssid_len, + NULL, 0, IEEE80211_PROBE_FLAG_DIRECTED); + rcu_read_unlock(); + + return skb; +} +EXPORT_SYMBOL(ieee80211_ap_probereq_get); + +static void ieee80211_report_disconnect(struct ieee80211_sub_if_data *sdata, + const u8 *buf, size_t len, bool tx, + u16 reason, bool reconnect) +{ + struct ieee80211_event event = { + .type = MLME_EVENT, + .u.mlme.data = tx ? DEAUTH_TX_EVENT : DEAUTH_RX_EVENT, + .u.mlme.reason = reason, + }; + + if (tx) + cfg80211_tx_mlme_mgmt(sdata->dev, buf, len, reconnect); + else + cfg80211_rx_mlme_mgmt(sdata->dev, buf, len); + + drv_event_callback(sdata->local, sdata, &event); +} + +static void __ieee80211_disconnect(struct ieee80211_sub_if_data *sdata) +{ + struct ieee80211_local *local = sdata->local; + struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; + u8 frame_buf[IEEE80211_DEAUTH_FRAME_LEN]; + bool tx; + + sdata_lock(sdata); + if (!ifmgd->associated) { + sdata_unlock(sdata); + return; + } + + /* in MLO assume we have a link where we can TX the frame */ + tx = sdata->vif.valid_links || !sdata->deflink.csa_block_tx; + + if (!ifmgd->driver_disconnect) { + unsigned int link_id; + + /* + * AP is probably out of range (or not reachable for another + * reason) so remove the bss structs for that AP. In the case + * of multi-link, it's not clear that all of them really are + * out of range, but if they weren't the driver likely would + * have switched to just have a single link active? + */ + for (link_id = 0; + link_id < ARRAY_SIZE(sdata->link); + link_id++) { + struct ieee80211_link_data *link; + + link = sdata_dereference(sdata->link[link_id], sdata); + if (!link) + continue; + cfg80211_unlink_bss(local->hw.wiphy, link->u.mgd.bss); + link->u.mgd.bss = NULL; + } + } + + ieee80211_set_disassoc(sdata, IEEE80211_STYPE_DEAUTH, + ifmgd->driver_disconnect ? + WLAN_REASON_DEAUTH_LEAVING : + WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY, + tx, frame_buf); + mutex_lock(&local->mtx); + /* the other links will be destroyed */ + sdata->vif.bss_conf.csa_active = false; + sdata->deflink.u.mgd.csa_waiting_bcn = false; + if (sdata->deflink.csa_block_tx) { + ieee80211_wake_vif_queues(local, sdata, + IEEE80211_QUEUE_STOP_REASON_CSA); + sdata->deflink.csa_block_tx = false; + } + mutex_unlock(&local->mtx); + + ieee80211_report_disconnect(sdata, frame_buf, sizeof(frame_buf), tx, + WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY, + ifmgd->reconnect); + ifmgd->reconnect = false; + + sdata_unlock(sdata); +} + +static void ieee80211_beacon_connection_loss_work(struct work_struct *work) +{ + struct ieee80211_sub_if_data *sdata = + container_of(work, struct ieee80211_sub_if_data, + u.mgd.beacon_connection_loss_work); + struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; + + if (ifmgd->connection_loss) { + sdata_info(sdata, "Connection to AP %pM lost\n", + sdata->vif.cfg.ap_addr); + __ieee80211_disconnect(sdata); + ifmgd->connection_loss = false; + } else if (ifmgd->driver_disconnect) { + sdata_info(sdata, + "Driver requested disconnection from AP %pM\n", + sdata->vif.cfg.ap_addr); + __ieee80211_disconnect(sdata); + ifmgd->driver_disconnect = false; + } else { + if (ifmgd->associated) + sdata->deflink.u.mgd.beacon_loss_count++; + ieee80211_mgd_probe_ap(sdata, true); + } +} + +static void ieee80211_csa_connection_drop_work(struct work_struct *work) +{ + struct ieee80211_sub_if_data *sdata = + container_of(work, struct ieee80211_sub_if_data, + u.mgd.csa_connection_drop_work); + + __ieee80211_disconnect(sdata); +} + +void ieee80211_beacon_loss(struct ieee80211_vif *vif) +{ + struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); + struct ieee80211_hw *hw = &sdata->local->hw; + + trace_api_beacon_loss(sdata); + + sdata->u.mgd.connection_loss = false; + ieee80211_queue_work(hw, &sdata->u.mgd.beacon_connection_loss_work); +} +EXPORT_SYMBOL(ieee80211_beacon_loss); + +void ieee80211_connection_loss(struct ieee80211_vif *vif) +{ + struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); + struct ieee80211_hw *hw = &sdata->local->hw; + + trace_api_connection_loss(sdata); + + sdata->u.mgd.connection_loss = true; + ieee80211_queue_work(hw, &sdata->u.mgd.beacon_connection_loss_work); +} +EXPORT_SYMBOL(ieee80211_connection_loss); + +void ieee80211_disconnect(struct ieee80211_vif *vif, bool reconnect) +{ + struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); + struct ieee80211_hw *hw = &sdata->local->hw; + + trace_api_disconnect(sdata, reconnect); + + if (WARN_ON(sdata->vif.type != NL80211_IFTYPE_STATION)) + return; + + sdata->u.mgd.driver_disconnect = true; + sdata->u.mgd.reconnect = reconnect; + ieee80211_queue_work(hw, &sdata->u.mgd.beacon_connection_loss_work); +} +EXPORT_SYMBOL(ieee80211_disconnect); + +static void ieee80211_destroy_auth_data(struct ieee80211_sub_if_data *sdata, + bool assoc) +{ + struct ieee80211_mgd_auth_data *auth_data = sdata->u.mgd.auth_data; + + sdata_assert_lock(sdata); + + if (!assoc) { + /* + * we are not authenticated yet, the only timer that could be + * running is the timeout for the authentication response which + * which is not relevant anymore. + */ + del_timer_sync(&sdata->u.mgd.timer); + sta_info_destroy_addr(sdata, auth_data->ap_addr); + + /* other links are destroyed */ + sdata->deflink.u.mgd.conn_flags = 0; + eth_zero_addr(sdata->deflink.u.mgd.bssid); + ieee80211_link_info_change_notify(sdata, &sdata->deflink, + BSS_CHANGED_BSSID); + sdata->u.mgd.flags = 0; + + mutex_lock(&sdata->local->mtx); + ieee80211_link_release_channel(&sdata->deflink); + ieee80211_vif_set_links(sdata, 0); + mutex_unlock(&sdata->local->mtx); + } + + cfg80211_put_bss(sdata->local->hw.wiphy, auth_data->bss); + kfree(auth_data); + sdata->u.mgd.auth_data = NULL; +} + +enum assoc_status { + ASSOC_SUCCESS, + ASSOC_REJECTED, + ASSOC_TIMEOUT, + ASSOC_ABANDON, +}; + +static void ieee80211_destroy_assoc_data(struct ieee80211_sub_if_data *sdata, + enum assoc_status status) +{ + struct ieee80211_mgd_assoc_data *assoc_data = sdata->u.mgd.assoc_data; + + sdata_assert_lock(sdata); + + if (status != ASSOC_SUCCESS) { + /* + * we are not associated yet, the only timer that could be + * running is the timeout for the association response which + * which is not relevant anymore. + */ + del_timer_sync(&sdata->u.mgd.timer); + sta_info_destroy_addr(sdata, assoc_data->ap_addr); + + sdata->deflink.u.mgd.conn_flags = 0; + eth_zero_addr(sdata->deflink.u.mgd.bssid); + ieee80211_link_info_change_notify(sdata, &sdata->deflink, + BSS_CHANGED_BSSID); + sdata->u.mgd.flags = 0; + sdata->vif.bss_conf.mu_mimo_owner = false; + + if (status != ASSOC_REJECTED) { + struct cfg80211_assoc_failure data = { + .timeout = status == ASSOC_TIMEOUT, + }; + int i; + + BUILD_BUG_ON(ARRAY_SIZE(data.bss) != + ARRAY_SIZE(assoc_data->link)); + + for (i = 0; i < ARRAY_SIZE(data.bss); i++) + data.bss[i] = assoc_data->link[i].bss; + + if (sdata->vif.valid_links) + data.ap_mld_addr = assoc_data->ap_addr; + + cfg80211_assoc_failure(sdata->dev, &data); + } + + mutex_lock(&sdata->local->mtx); + ieee80211_link_release_channel(&sdata->deflink); + ieee80211_vif_set_links(sdata, 0); + mutex_unlock(&sdata->local->mtx); + } + + kfree(assoc_data); + sdata->u.mgd.assoc_data = NULL; +} + +static void ieee80211_auth_challenge(struct ieee80211_sub_if_data *sdata, + struct ieee80211_mgmt *mgmt, size_t len) +{ + struct ieee80211_local *local = sdata->local; + struct ieee80211_mgd_auth_data *auth_data = sdata->u.mgd.auth_data; + const struct element *challenge; + u8 *pos; + u32 tx_flags = 0; + struct ieee80211_prep_tx_info info = { + .subtype = IEEE80211_STYPE_AUTH, + }; + + pos = mgmt->u.auth.variable; + challenge = cfg80211_find_elem(WLAN_EID_CHALLENGE, pos, + len - (pos - (u8 *)mgmt)); + if (!challenge) + return; + auth_data->expected_transaction = 4; + drv_mgd_prepare_tx(sdata->local, sdata, &info); + if (ieee80211_hw_check(&local->hw, REPORTS_TX_ACK_STATUS)) + tx_flags = IEEE80211_TX_CTL_REQ_TX_STATUS | + IEEE80211_TX_INTFL_MLME_CONN_TX; + ieee80211_send_auth(sdata, 3, auth_data->algorithm, 0, + (void *)challenge, + challenge->datalen + sizeof(*challenge), + auth_data->ap_addr, auth_data->ap_addr, + auth_data->key, auth_data->key_len, + auth_data->key_idx, tx_flags); +} + +static bool ieee80211_mark_sta_auth(struct ieee80211_sub_if_data *sdata) +{ + struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; + const u8 *ap_addr = ifmgd->auth_data->ap_addr; + struct sta_info *sta; + bool result = true; + + sdata_info(sdata, "authenticated\n"); + ifmgd->auth_data->done = true; + ifmgd->auth_data->timeout = jiffies + IEEE80211_AUTH_WAIT_ASSOC; + ifmgd->auth_data->timeout_started = true; + run_again(sdata, ifmgd->auth_data->timeout); + + /* move station state to auth */ + mutex_lock(&sdata->local->sta_mtx); + sta = sta_info_get(sdata, ap_addr); + if (!sta) { + WARN_ONCE(1, "%s: STA %pM not found", sdata->name, ap_addr); + result = false; + goto out; + } + if (sta_info_move_state(sta, IEEE80211_STA_AUTH)) { + sdata_info(sdata, "failed moving %pM to auth\n", ap_addr); + result = false; + goto out; + } + +out: + mutex_unlock(&sdata->local->sta_mtx); + return result; +} + +static void ieee80211_rx_mgmt_auth(struct ieee80211_sub_if_data *sdata, + struct ieee80211_mgmt *mgmt, size_t len) +{ + struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; + u16 auth_alg, auth_transaction, status_code; + struct ieee80211_event event = { + .type = MLME_EVENT, + .u.mlme.data = AUTH_EVENT, + }; + struct ieee80211_prep_tx_info info = { + .subtype = IEEE80211_STYPE_AUTH, + }; + + sdata_assert_lock(sdata); + + if (len < 24 + 6) + return; + + if (!ifmgd->auth_data || ifmgd->auth_data->done) + return; + + if (!ether_addr_equal(ifmgd->auth_data->ap_addr, mgmt->bssid)) + return; + + auth_alg = le16_to_cpu(mgmt->u.auth.auth_alg); + auth_transaction = le16_to_cpu(mgmt->u.auth.auth_transaction); + status_code = le16_to_cpu(mgmt->u.auth.status_code); + + if (auth_alg != ifmgd->auth_data->algorithm || + (auth_alg != WLAN_AUTH_SAE && + auth_transaction != ifmgd->auth_data->expected_transaction) || + (auth_alg == WLAN_AUTH_SAE && + (auth_transaction < ifmgd->auth_data->expected_transaction || + auth_transaction > 2))) { + sdata_info(sdata, "%pM unexpected authentication state: alg %d (expected %d) transact %d (expected %d)\n", + mgmt->sa, auth_alg, ifmgd->auth_data->algorithm, + auth_transaction, + ifmgd->auth_data->expected_transaction); + goto notify_driver; + } + + if (status_code != WLAN_STATUS_SUCCESS) { + cfg80211_rx_mlme_mgmt(sdata->dev, (u8 *)mgmt, len); + + if (auth_alg == WLAN_AUTH_SAE && + (status_code == WLAN_STATUS_ANTI_CLOG_REQUIRED || + (auth_transaction == 1 && + (status_code == WLAN_STATUS_SAE_HASH_TO_ELEMENT || + status_code == WLAN_STATUS_SAE_PK)))) { + /* waiting for userspace now */ + ifmgd->auth_data->waiting = true; + ifmgd->auth_data->timeout = + jiffies + IEEE80211_AUTH_WAIT_SAE_RETRY; + ifmgd->auth_data->timeout_started = true; + run_again(sdata, ifmgd->auth_data->timeout); + goto notify_driver; + } + + sdata_info(sdata, "%pM denied authentication (status %d)\n", + mgmt->sa, status_code); + ieee80211_destroy_auth_data(sdata, false); + event.u.mlme.status = MLME_DENIED; + event.u.mlme.reason = status_code; + drv_event_callback(sdata->local, sdata, &event); + goto notify_driver; + } + + switch (ifmgd->auth_data->algorithm) { + case WLAN_AUTH_OPEN: + case WLAN_AUTH_LEAP: + case WLAN_AUTH_FT: + case WLAN_AUTH_SAE: + case WLAN_AUTH_FILS_SK: + case WLAN_AUTH_FILS_SK_PFS: + case WLAN_AUTH_FILS_PK: + break; + case WLAN_AUTH_SHARED_KEY: + if (ifmgd->auth_data->expected_transaction != 4) { + ieee80211_auth_challenge(sdata, mgmt, len); + /* need another frame */ + return; + } + break; + default: + WARN_ONCE(1, "invalid auth alg %d", + ifmgd->auth_data->algorithm); + goto notify_driver; + } + + event.u.mlme.status = MLME_SUCCESS; + info.success = 1; + drv_event_callback(sdata->local, sdata, &event); + if (ifmgd->auth_data->algorithm != WLAN_AUTH_SAE || + (auth_transaction == 2 && + ifmgd->auth_data->expected_transaction == 2)) { + if (!ieee80211_mark_sta_auth(sdata)) + return; /* ignore frame -- wait for timeout */ + } else if (ifmgd->auth_data->algorithm == WLAN_AUTH_SAE && + auth_transaction == 2) { + sdata_info(sdata, "SAE peer confirmed\n"); + ifmgd->auth_data->peer_confirmed = true; + } + + cfg80211_rx_mlme_mgmt(sdata->dev, (u8 *)mgmt, len); +notify_driver: + drv_mgd_complete_tx(sdata->local, sdata, &info); +} + +#define case_WLAN(type) \ + case WLAN_REASON_##type: return #type + +const char *ieee80211_get_reason_code_string(u16 reason_code) +{ + switch (reason_code) { + case_WLAN(UNSPECIFIED); + case_WLAN(PREV_AUTH_NOT_VALID); + case_WLAN(DEAUTH_LEAVING); + case_WLAN(DISASSOC_DUE_TO_INACTIVITY); + case_WLAN(DISASSOC_AP_BUSY); + case_WLAN(CLASS2_FRAME_FROM_NONAUTH_STA); + case_WLAN(CLASS3_FRAME_FROM_NONASSOC_STA); + case_WLAN(DISASSOC_STA_HAS_LEFT); + case_WLAN(STA_REQ_ASSOC_WITHOUT_AUTH); + case_WLAN(DISASSOC_BAD_POWER); + case_WLAN(DISASSOC_BAD_SUPP_CHAN); + case_WLAN(INVALID_IE); + case_WLAN(MIC_FAILURE); + case_WLAN(4WAY_HANDSHAKE_TIMEOUT); + case_WLAN(GROUP_KEY_HANDSHAKE_TIMEOUT); + case_WLAN(IE_DIFFERENT); + case_WLAN(INVALID_GROUP_CIPHER); + case_WLAN(INVALID_PAIRWISE_CIPHER); + case_WLAN(INVALID_AKMP); + case_WLAN(UNSUPP_RSN_VERSION); + case_WLAN(INVALID_RSN_IE_CAP); + case_WLAN(IEEE8021X_FAILED); + case_WLAN(CIPHER_SUITE_REJECTED); + case_WLAN(DISASSOC_UNSPECIFIED_QOS); + case_WLAN(DISASSOC_QAP_NO_BANDWIDTH); + case_WLAN(DISASSOC_LOW_ACK); + case_WLAN(DISASSOC_QAP_EXCEED_TXOP); + case_WLAN(QSTA_LEAVE_QBSS); + case_WLAN(QSTA_NOT_USE); + case_WLAN(QSTA_REQUIRE_SETUP); + case_WLAN(QSTA_TIMEOUT); + case_WLAN(QSTA_CIPHER_NOT_SUPP); + case_WLAN(MESH_PEER_CANCELED); + case_WLAN(MESH_MAX_PEERS); + case_WLAN(MESH_CONFIG); + case_WLAN(MESH_CLOSE); + case_WLAN(MESH_MAX_RETRIES); + case_WLAN(MESH_CONFIRM_TIMEOUT); + case_WLAN(MESH_INVALID_GTK); + case_WLAN(MESH_INCONSISTENT_PARAM); + case_WLAN(MESH_INVALID_SECURITY); + case_WLAN(MESH_PATH_ERROR); + case_WLAN(MESH_PATH_NOFORWARD); + case_WLAN(MESH_PATH_DEST_UNREACHABLE); + case_WLAN(MAC_EXISTS_IN_MBSS); + case_WLAN(MESH_CHAN_REGULATORY); + case_WLAN(MESH_CHAN); + default: return "<unknown>"; + } +} + +static void ieee80211_rx_mgmt_deauth(struct ieee80211_sub_if_data *sdata, + struct ieee80211_mgmt *mgmt, size_t len) +{ + struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; + u16 reason_code = le16_to_cpu(mgmt->u.deauth.reason_code); + + sdata_assert_lock(sdata); + + if (len < 24 + 2) + return; + + if (!ether_addr_equal(mgmt->bssid, mgmt->sa)) { + ieee80211_tdls_handle_disconnect(sdata, mgmt->sa, reason_code); + return; + } + + if (ifmgd->associated && + ether_addr_equal(mgmt->bssid, sdata->vif.cfg.ap_addr)) { + sdata_info(sdata, "deauthenticated from %pM (Reason: %u=%s)\n", + sdata->vif.cfg.ap_addr, reason_code, + ieee80211_get_reason_code_string(reason_code)); + + ieee80211_set_disassoc(sdata, 0, 0, false, NULL); + + ieee80211_report_disconnect(sdata, (u8 *)mgmt, len, false, + reason_code, false); + return; + } + + if (ifmgd->assoc_data && + ether_addr_equal(mgmt->bssid, ifmgd->assoc_data->ap_addr)) { + sdata_info(sdata, + "deauthenticated from %pM while associating (Reason: %u=%s)\n", + ifmgd->assoc_data->ap_addr, reason_code, + ieee80211_get_reason_code_string(reason_code)); + + ieee80211_destroy_assoc_data(sdata, ASSOC_ABANDON); + + cfg80211_rx_mlme_mgmt(sdata->dev, (u8 *)mgmt, len); + return; + } +} + + +static void ieee80211_rx_mgmt_disassoc(struct ieee80211_sub_if_data *sdata, + struct ieee80211_mgmt *mgmt, size_t len) +{ + struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; + u16 reason_code; + + sdata_assert_lock(sdata); + + if (len < 24 + 2) + return; + + if (!ifmgd->associated || + !ether_addr_equal(mgmt->bssid, sdata->vif.cfg.ap_addr)) + return; + + reason_code = le16_to_cpu(mgmt->u.disassoc.reason_code); + + if (!ether_addr_equal(mgmt->bssid, mgmt->sa)) { + ieee80211_tdls_handle_disconnect(sdata, mgmt->sa, reason_code); + return; + } + + sdata_info(sdata, "disassociated from %pM (Reason: %u=%s)\n", + sdata->vif.cfg.ap_addr, reason_code, + ieee80211_get_reason_code_string(reason_code)); + + ieee80211_set_disassoc(sdata, 0, 0, false, NULL); + + ieee80211_report_disconnect(sdata, (u8 *)mgmt, len, false, reason_code, + false); +} + +static void ieee80211_get_rates(struct ieee80211_supported_band *sband, + u8 *supp_rates, unsigned int supp_rates_len, + u32 *rates, u32 *basic_rates, + bool *have_higher_than_11mbit, + int *min_rate, int *min_rate_index, + int shift) +{ + int i, j; + + for (i = 0; i < supp_rates_len; i++) { + int rate = supp_rates[i] & 0x7f; + bool is_basic = !!(supp_rates[i] & 0x80); + + if ((rate * 5 * (1 << shift)) > 110) + *have_higher_than_11mbit = true; + + /* + * Skip HT, VHT, HE and SAE H2E only BSS membership selectors + * since they're not rates. + * + * Note: Even though the membership selector and the basic + * rate flag share the same bit, they are not exactly + * the same. + */ + if (supp_rates[i] == (0x80 | BSS_MEMBERSHIP_SELECTOR_HT_PHY) || + supp_rates[i] == (0x80 | BSS_MEMBERSHIP_SELECTOR_VHT_PHY) || + supp_rates[i] == (0x80 | BSS_MEMBERSHIP_SELECTOR_HE_PHY) || + supp_rates[i] == (0x80 | BSS_MEMBERSHIP_SELECTOR_SAE_H2E)) + continue; + + for (j = 0; j < sband->n_bitrates; j++) { + struct ieee80211_rate *br; + int brate; + + br = &sband->bitrates[j]; + + brate = DIV_ROUND_UP(br->bitrate, (1 << shift) * 5); + if (brate == rate) { + *rates |= BIT(j); + if (is_basic) + *basic_rates |= BIT(j); + if ((rate * 5) < *min_rate) { + *min_rate = rate * 5; + *min_rate_index = j; + } + break; + } + } + } +} + +static bool ieee80211_twt_req_supported(struct ieee80211_sub_if_data *sdata, + struct ieee80211_supported_band *sband, + const struct link_sta_info *link_sta, + const struct ieee802_11_elems *elems) +{ + const struct ieee80211_sta_he_cap *own_he_cap = + ieee80211_get_he_iftype_cap(sband, + ieee80211_vif_type_p2p(&sdata->vif)); + + if (elems->ext_capab_len < 10) + return false; + + if (!(elems->ext_capab[9] & WLAN_EXT_CAPA10_TWT_RESPONDER_SUPPORT)) + return false; + + return link_sta->pub->he_cap.he_cap_elem.mac_cap_info[0] & + IEEE80211_HE_MAC_CAP0_TWT_RES && + own_he_cap && + (own_he_cap->he_cap_elem.mac_cap_info[0] & + IEEE80211_HE_MAC_CAP0_TWT_REQ); +} + +static int ieee80211_recalc_twt_req(struct ieee80211_sub_if_data *sdata, + struct ieee80211_supported_band *sband, + struct ieee80211_link_data *link, + struct link_sta_info *link_sta, + struct ieee802_11_elems *elems) +{ + bool twt = ieee80211_twt_req_supported(sdata, sband, link_sta, elems); + + if (link->conf->twt_requester != twt) { + link->conf->twt_requester = twt; + return BSS_CHANGED_TWT; + } + return 0; +} + +static bool ieee80211_twt_bcast_support(struct ieee80211_sub_if_data *sdata, + struct ieee80211_bss_conf *bss_conf, + struct ieee80211_supported_band *sband, + struct link_sta_info *link_sta) +{ + const struct ieee80211_sta_he_cap *own_he_cap = + ieee80211_get_he_iftype_cap(sband, + ieee80211_vif_type_p2p(&sdata->vif)); + + return bss_conf->he_support && + (link_sta->pub->he_cap.he_cap_elem.mac_cap_info[2] & + IEEE80211_HE_MAC_CAP2_BCAST_TWT) && + own_he_cap && + (own_he_cap->he_cap_elem.mac_cap_info[2] & + IEEE80211_HE_MAC_CAP2_BCAST_TWT); +} + +static bool ieee80211_assoc_config_link(struct ieee80211_link_data *link, + struct link_sta_info *link_sta, + struct cfg80211_bss *cbss, + struct ieee80211_mgmt *mgmt, + const u8 *elem_start, + unsigned int elem_len, + u64 *changed) +{ + struct ieee80211_sub_if_data *sdata = link->sdata; + struct ieee80211_mgd_assoc_data *assoc_data = sdata->u.mgd.assoc_data; + struct ieee80211_bss_conf *bss_conf = link->conf; + struct ieee80211_local *local = sdata->local; + unsigned int link_id = link->link_id; + struct ieee80211_elems_parse_params parse_params = { + .start = elem_start, + .len = elem_len, + .link_id = link_id == assoc_data->assoc_link_id ? -1 : link_id, + .from_ap = true, + }; + bool is_6ghz = cbss->channel->band == NL80211_BAND_6GHZ; + bool is_s1g = cbss->channel->band == NL80211_BAND_S1GHZ; + const struct cfg80211_bss_ies *bss_ies = NULL; + struct ieee80211_supported_band *sband; + struct ieee802_11_elems *elems; + u16 capab_info; + bool ret; + + elems = ieee802_11_parse_elems_full(&parse_params); + if (!elems) + return false; + + if (link_id == assoc_data->assoc_link_id) { + capab_info = le16_to_cpu(mgmt->u.assoc_resp.capab_info); + + /* + * we should not get to this flow unless the association was + * successful, so set the status directly to success + */ + assoc_data->link[link_id].status = WLAN_STATUS_SUCCESS; + } else if (!elems->prof) { + ret = false; + goto out; + } else { + const u8 *ptr = elems->prof->variable + + elems->prof->sta_info_len - 1; + + /* + * During parsing, we validated that these fields exist, + * otherwise elems->prof would have been set to NULL. + */ + capab_info = get_unaligned_le16(ptr); + assoc_data->link[link_id].status = get_unaligned_le16(ptr + 2); + + if (assoc_data->link[link_id].status != WLAN_STATUS_SUCCESS) { + link_info(link, "association response status code=%u\n", + assoc_data->link[link_id].status); + ret = true; + goto out; + } + } + + if (!is_s1g && !elems->supp_rates) { + sdata_info(sdata, "no SuppRates element in AssocResp\n"); + ret = false; + goto out; + } + + link->u.mgd.tdls_chan_switch_prohibited = + elems->ext_capab && elems->ext_capab_len >= 5 && + (elems->ext_capab[4] & WLAN_EXT_CAPA5_TDLS_CH_SW_PROHIBITED); + + /* + * Some APs are erroneously not including some information in their + * (re)association response frames. Try to recover by using the data + * from the beacon or probe response. This seems to afflict mobile + * 2G/3G/4G wifi routers, reported models include the "Onda PN51T", + * "Vodafone PocketWiFi 2", "ZTE MF60" and a similar T-Mobile device. + */ + if (!is_6ghz && + ((assoc_data->wmm && !elems->wmm_param) || + (!(link->u.mgd.conn_flags & IEEE80211_CONN_DISABLE_HT) && + (!elems->ht_cap_elem || !elems->ht_operation)) || + (!(link->u.mgd.conn_flags & IEEE80211_CONN_DISABLE_VHT) && + (!elems->vht_cap_elem || !elems->vht_operation)))) { + const struct cfg80211_bss_ies *ies; + struct ieee802_11_elems *bss_elems; + + rcu_read_lock(); + ies = rcu_dereference(cbss->ies); + if (ies) + bss_ies = kmemdup(ies, sizeof(*ies) + ies->len, + GFP_ATOMIC); + rcu_read_unlock(); + if (!bss_ies) { + ret = false; + goto out; + } + + parse_params.start = bss_ies->data; + parse_params.len = bss_ies->len; + parse_params.bss = cbss; + bss_elems = ieee802_11_parse_elems_full(&parse_params); + if (!bss_elems) { + ret = false; + goto out; + } + + if (assoc_data->wmm && + !elems->wmm_param && bss_elems->wmm_param) { + elems->wmm_param = bss_elems->wmm_param; + sdata_info(sdata, + "AP bug: WMM param missing from AssocResp\n"); + } + + /* + * Also check if we requested HT/VHT, otherwise the AP doesn't + * have to include the IEs in the (re)association response. + */ + if (!elems->ht_cap_elem && bss_elems->ht_cap_elem && + !(link->u.mgd.conn_flags & IEEE80211_CONN_DISABLE_HT)) { + elems->ht_cap_elem = bss_elems->ht_cap_elem; + sdata_info(sdata, + "AP bug: HT capability missing from AssocResp\n"); + } + if (!elems->ht_operation && bss_elems->ht_operation && + !(link->u.mgd.conn_flags & IEEE80211_CONN_DISABLE_HT)) { + elems->ht_operation = bss_elems->ht_operation; + sdata_info(sdata, + "AP bug: HT operation missing from AssocResp\n"); + } + if (!elems->vht_cap_elem && bss_elems->vht_cap_elem && + !(link->u.mgd.conn_flags & IEEE80211_CONN_DISABLE_VHT)) { + elems->vht_cap_elem = bss_elems->vht_cap_elem; + sdata_info(sdata, + "AP bug: VHT capa missing from AssocResp\n"); + } + if (!elems->vht_operation && bss_elems->vht_operation && + !(link->u.mgd.conn_flags & IEEE80211_CONN_DISABLE_VHT)) { + elems->vht_operation = bss_elems->vht_operation; + sdata_info(sdata, + "AP bug: VHT operation missing from AssocResp\n"); + } + + kfree(bss_elems); + } + + /* + * We previously checked these in the beacon/probe response, so + * they should be present here. This is just a safety net. + */ + if (!is_6ghz && !(link->u.mgd.conn_flags & IEEE80211_CONN_DISABLE_HT) && + (!elems->wmm_param || !elems->ht_cap_elem || !elems->ht_operation)) { + sdata_info(sdata, + "HT AP is missing WMM params or HT capability/operation\n"); + ret = false; + goto out; + } + + if (!is_6ghz && !(link->u.mgd.conn_flags & IEEE80211_CONN_DISABLE_VHT) && + (!elems->vht_cap_elem || !elems->vht_operation)) { + sdata_info(sdata, + "VHT AP is missing VHT capability/operation\n"); + ret = false; + goto out; + } + + if (is_6ghz && !(link->u.mgd.conn_flags & IEEE80211_CONN_DISABLE_HE) && + !elems->he_6ghz_capa) { + sdata_info(sdata, + "HE 6 GHz AP is missing HE 6 GHz band capability\n"); + ret = false; + goto out; + } + + if (WARN_ON(!link->conf->chandef.chan)) { + ret = false; + goto out; + } + sband = local->hw.wiphy->bands[link->conf->chandef.chan->band]; + + if (!(link->u.mgd.conn_flags & IEEE80211_CONN_DISABLE_HE) && + (!elems->he_cap || !elems->he_operation)) { + sdata_info(sdata, + "HE AP is missing HE capability/operation\n"); + ret = false; + goto out; + } + + /* Set up internal HT/VHT capabilities */ + if (elems->ht_cap_elem && !(link->u.mgd.conn_flags & IEEE80211_CONN_DISABLE_HT)) + ieee80211_ht_cap_ie_to_sta_ht_cap(sdata, sband, + elems->ht_cap_elem, + link_sta); + + if (elems->vht_cap_elem && !(link->u.mgd.conn_flags & IEEE80211_CONN_DISABLE_VHT)) + ieee80211_vht_cap_ie_to_sta_vht_cap(sdata, sband, + elems->vht_cap_elem, + link_sta); + + if (elems->he_operation && !(link->u.mgd.conn_flags & IEEE80211_CONN_DISABLE_HE) && + elems->he_cap) { + ieee80211_he_cap_ie_to_sta_he_cap(sdata, sband, + elems->he_cap, + elems->he_cap_len, + elems->he_6ghz_capa, + link_sta); + + bss_conf->he_support = link_sta->pub->he_cap.has_he; + if (elems->rsnx && elems->rsnx_len && + (elems->rsnx[0] & WLAN_RSNX_CAPA_PROTECTED_TWT) && + wiphy_ext_feature_isset(local->hw.wiphy, + NL80211_EXT_FEATURE_PROTECTED_TWT)) + bss_conf->twt_protected = true; + else + bss_conf->twt_protected = false; + + *changed |= ieee80211_recalc_twt_req(sdata, sband, link, + link_sta, elems); + + if (elems->eht_operation && elems->eht_cap && + !(link->u.mgd.conn_flags & IEEE80211_CONN_DISABLE_EHT)) { + ieee80211_eht_cap_ie_to_sta_eht_cap(sdata, sband, + elems->he_cap, + elems->he_cap_len, + elems->eht_cap, + elems->eht_cap_len, + link_sta); + + bss_conf->eht_support = link_sta->pub->eht_cap.has_eht; + *changed |= BSS_CHANGED_EHT_PUNCTURING; + } else { + bss_conf->eht_support = false; + } + } else { + bss_conf->he_support = false; + bss_conf->twt_requester = false; + bss_conf->twt_protected = false; + bss_conf->eht_support = false; + } + + bss_conf->twt_broadcast = + ieee80211_twt_bcast_support(sdata, bss_conf, sband, link_sta); + + if (bss_conf->he_support) { + bss_conf->he_bss_color.color = + le32_get_bits(elems->he_operation->he_oper_params, + IEEE80211_HE_OPERATION_BSS_COLOR_MASK); + bss_conf->he_bss_color.partial = + le32_get_bits(elems->he_operation->he_oper_params, + IEEE80211_HE_OPERATION_PARTIAL_BSS_COLOR); + bss_conf->he_bss_color.enabled = + !le32_get_bits(elems->he_operation->he_oper_params, + IEEE80211_HE_OPERATION_BSS_COLOR_DISABLED); + + if (bss_conf->he_bss_color.enabled) + *changed |= BSS_CHANGED_HE_BSS_COLOR; + + bss_conf->htc_trig_based_pkt_ext = + le32_get_bits(elems->he_operation->he_oper_params, + IEEE80211_HE_OPERATION_DFLT_PE_DURATION_MASK); + bss_conf->frame_time_rts_th = + le32_get_bits(elems->he_operation->he_oper_params, + IEEE80211_HE_OPERATION_RTS_THRESHOLD_MASK); + + bss_conf->uora_exists = !!elems->uora_element; + if (elems->uora_element) + bss_conf->uora_ocw_range = elems->uora_element[0]; + + ieee80211_he_op_ie_to_bss_conf(&sdata->vif, elems->he_operation); + ieee80211_he_spr_ie_to_bss_conf(&sdata->vif, elems->he_spr); + /* TODO: OPEN: what happens if BSS color disable is set? */ + } + + if (cbss->transmitted_bss) { + bss_conf->nontransmitted = true; + ether_addr_copy(bss_conf->transmitter_bssid, + cbss->transmitted_bss->bssid); + bss_conf->bssid_indicator = cbss->max_bssid_indicator; + bss_conf->bssid_index = cbss->bssid_index; + } + + /* + * Some APs, e.g. Netgear WNDR3700, report invalid HT operation data + * in their association response, so ignore that data for our own + * configuration. If it changed since the last beacon, we'll get the + * next beacon and update then. + */ + + /* + * If an operating mode notification IE is present, override the + * NSS calculation (that would be done in rate_control_rate_init()) + * and use the # of streams from that element. + */ + if (elems->opmode_notif && + !(*elems->opmode_notif & IEEE80211_OPMODE_NOTIF_RX_NSS_TYPE_BF)) { + u8 nss; + + nss = *elems->opmode_notif & IEEE80211_OPMODE_NOTIF_RX_NSS_MASK; + nss >>= IEEE80211_OPMODE_NOTIF_RX_NSS_SHIFT; + nss += 1; + link_sta->pub->rx_nss = nss; + } + + /* + * Always handle WMM once after association regardless + * of the first value the AP uses. Setting -1 here has + * that effect because the AP values is an unsigned + * 4-bit value. + */ + link->u.mgd.wmm_last_param_set = -1; + link->u.mgd.mu_edca_last_param_set = -1; + + if (link->u.mgd.disable_wmm_tracking) { + ieee80211_set_wmm_default(link, false, false); + } else if (!ieee80211_sta_wmm_params(local, link, elems->wmm_param, + elems->wmm_param_len, + elems->mu_edca_param_set)) { + /* still enable QoS since we might have HT/VHT */ + ieee80211_set_wmm_default(link, false, true); + /* disable WMM tracking in this case to disable + * tracking WMM parameter changes in the beacon if + * the parameters weren't actually valid. Doing so + * avoids changing parameters very strangely when + * the AP is going back and forth between valid and + * invalid parameters. + */ + link->u.mgd.disable_wmm_tracking = true; + } + + if (elems->max_idle_period_ie) { + bss_conf->max_idle_period = + le16_to_cpu(elems->max_idle_period_ie->max_idle_period); + bss_conf->protected_keep_alive = + !!(elems->max_idle_period_ie->idle_options & + WLAN_IDLE_OPTIONS_PROTECTED_KEEP_ALIVE); + *changed |= BSS_CHANGED_KEEP_ALIVE; + } else { + bss_conf->max_idle_period = 0; + bss_conf->protected_keep_alive = false; + } + + /* set assoc capability (AID was already set earlier), + * ieee80211_set_associated() will tell the driver */ + bss_conf->assoc_capability = capab_info; + + ret = true; +out: + kfree(elems); + kfree(bss_ies); + return ret; +} + +static int ieee80211_mgd_setup_link_sta(struct ieee80211_link_data *link, + struct sta_info *sta, + struct link_sta_info *link_sta, + struct cfg80211_bss *cbss) +{ + struct ieee80211_sub_if_data *sdata = link->sdata; + struct ieee80211_local *local = sdata->local; + struct ieee80211_bss *bss = (void *)cbss->priv; + u32 rates = 0, basic_rates = 0; + bool have_higher_than_11mbit = false; + int min_rate = INT_MAX, min_rate_index = -1; + /* this is clearly wrong for MLO but we'll just remove it later */ + int shift = ieee80211_vif_get_shift(&sdata->vif); + struct ieee80211_supported_band *sband; + + memcpy(link_sta->addr, cbss->bssid, ETH_ALEN); + memcpy(link_sta->pub->addr, cbss->bssid, ETH_ALEN); + + /* TODO: S1G Basic Rate Set is expressed elsewhere */ + if (cbss->channel->band == NL80211_BAND_S1GHZ) { + ieee80211_s1g_sta_rate_init(sta); + return 0; + } + + sband = local->hw.wiphy->bands[cbss->channel->band]; + + ieee80211_get_rates(sband, bss->supp_rates, bss->supp_rates_len, + &rates, &basic_rates, &have_higher_than_11mbit, + &min_rate, &min_rate_index, shift); + + /* + * This used to be a workaround for basic rates missing + * in the association response frame. Now that we no + * longer use the basic rates from there, it probably + * doesn't happen any more, but keep the workaround so + * in case some *other* APs are buggy in different ways + * we can connect -- with a warning. + * Allow this workaround only in case the AP provided at least + * one rate. + */ + if (min_rate_index < 0) { + link_info(link, "No legacy rates in association response\n"); + return -EINVAL; + } else if (!basic_rates) { + link_info(link, "No basic rates, using min rate instead\n"); + basic_rates = BIT(min_rate_index); + } + + if (rates) + link_sta->pub->supp_rates[cbss->channel->band] = rates; + else + link_info(link, "No rates found, keeping mandatory only\n"); + + link->conf->basic_rates = basic_rates; + + /* cf. IEEE 802.11 9.2.12 */ + link->operating_11g_mode = sband->band == NL80211_BAND_2GHZ && + have_higher_than_11mbit; + + return 0; +} + +static u8 ieee80211_max_rx_chains(struct ieee80211_link_data *link, + struct cfg80211_bss *cbss) +{ + struct ieee80211_he_mcs_nss_supp *he_mcs_nss_supp; + const struct element *ht_cap_elem, *vht_cap_elem; + const struct cfg80211_bss_ies *ies; + const struct ieee80211_ht_cap *ht_cap; + const struct ieee80211_vht_cap *vht_cap; + const struct ieee80211_he_cap_elem *he_cap; + const struct element *he_cap_elem; + u16 mcs_80_map, mcs_160_map; + int i, mcs_nss_size; + bool support_160; + u8 chains = 1; + + if (link->u.mgd.conn_flags & IEEE80211_CONN_DISABLE_HT) + return chains; + + ht_cap_elem = ieee80211_bss_get_elem(cbss, WLAN_EID_HT_CAPABILITY); + if (ht_cap_elem && ht_cap_elem->datalen >= sizeof(*ht_cap)) { + ht_cap = (void *)ht_cap_elem->data; + chains = ieee80211_mcs_to_chains(&ht_cap->mcs); + /* + * TODO: use "Tx Maximum Number Spatial Streams Supported" and + * "Tx Unequal Modulation Supported" fields. + */ + } + + if (link->u.mgd.conn_flags & IEEE80211_CONN_DISABLE_VHT) + return chains; + + vht_cap_elem = ieee80211_bss_get_elem(cbss, WLAN_EID_VHT_CAPABILITY); + if (vht_cap_elem && vht_cap_elem->datalen >= sizeof(*vht_cap)) { + u8 nss; + u16 tx_mcs_map; + + vht_cap = (void *)vht_cap_elem->data; + tx_mcs_map = le16_to_cpu(vht_cap->supp_mcs.tx_mcs_map); + for (nss = 8; nss > 0; nss--) { + if (((tx_mcs_map >> (2 * (nss - 1))) & 3) != + IEEE80211_VHT_MCS_NOT_SUPPORTED) + break; + } + /* TODO: use "Tx Highest Supported Long GI Data Rate" field? */ + chains = max(chains, nss); + } + + if (link->u.mgd.conn_flags & IEEE80211_CONN_DISABLE_HE) + return chains; + + ies = rcu_dereference(cbss->ies); + he_cap_elem = cfg80211_find_ext_elem(WLAN_EID_EXT_HE_CAPABILITY, + ies->data, ies->len); + + if (!he_cap_elem || he_cap_elem->datalen < sizeof(*he_cap)) + return chains; + + /* skip one byte ext_tag_id */ + he_cap = (void *)(he_cap_elem->data + 1); + mcs_nss_size = ieee80211_he_mcs_nss_size(he_cap); + + /* invalid HE IE */ + if (he_cap_elem->datalen < 1 + mcs_nss_size + sizeof(*he_cap)) + return chains; + + /* mcs_nss is right after he_cap info */ + he_mcs_nss_supp = (void *)(he_cap + 1); + + mcs_80_map = le16_to_cpu(he_mcs_nss_supp->tx_mcs_80); + + for (i = 7; i >= 0; i--) { + u8 mcs_80 = mcs_80_map >> (2 * i) & 3; + + if (mcs_80 != IEEE80211_VHT_MCS_NOT_SUPPORTED) { + chains = max_t(u8, chains, i + 1); + break; + } + } + + support_160 = he_cap->phy_cap_info[0] & + IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_160MHZ_IN_5G; + + if (!support_160) + return chains; + + mcs_160_map = le16_to_cpu(he_mcs_nss_supp->tx_mcs_160); + for (i = 7; i >= 0; i--) { + u8 mcs_160 = mcs_160_map >> (2 * i) & 3; + + if (mcs_160 != IEEE80211_VHT_MCS_NOT_SUPPORTED) { + chains = max_t(u8, chains, i + 1); + break; + } + } + + return chains; +} + +static bool +ieee80211_verify_peer_he_mcs_support(struct ieee80211_sub_if_data *sdata, + const struct cfg80211_bss_ies *ies, + const struct ieee80211_he_operation *he_op) +{ + const struct element *he_cap_elem; + const struct ieee80211_he_cap_elem *he_cap; + struct ieee80211_he_mcs_nss_supp *he_mcs_nss_supp; + u16 mcs_80_map_tx, mcs_80_map_rx; + u16 ap_min_req_set; + int mcs_nss_size; + int nss; + + he_cap_elem = cfg80211_find_ext_elem(WLAN_EID_EXT_HE_CAPABILITY, + ies->data, ies->len); + + if (!he_cap_elem) + return false; + + /* invalid HE IE */ + if (he_cap_elem->datalen < 1 + sizeof(*he_cap)) { + sdata_info(sdata, + "Invalid HE elem, Disable HE\n"); + return false; + } + + /* skip one byte ext_tag_id */ + he_cap = (void *)(he_cap_elem->data + 1); + mcs_nss_size = ieee80211_he_mcs_nss_size(he_cap); + + /* invalid HE IE */ + if (he_cap_elem->datalen < 1 + sizeof(*he_cap) + mcs_nss_size) { + sdata_info(sdata, + "Invalid HE elem with nss size, Disable HE\n"); + return false; + } + + /* mcs_nss is right after he_cap info */ + he_mcs_nss_supp = (void *)(he_cap + 1); + + mcs_80_map_tx = le16_to_cpu(he_mcs_nss_supp->tx_mcs_80); + mcs_80_map_rx = le16_to_cpu(he_mcs_nss_supp->rx_mcs_80); + + /* P802.11-REVme/D0.3 + * 27.1.1 Introduction to the HE PHY + * ... + * An HE STA shall support the following features: + * ... + * Single spatial stream HE-MCSs 0 to 7 (transmit and receive) in all + * supported channel widths for HE SU PPDUs + */ + if ((mcs_80_map_tx & 0x3) == IEEE80211_HE_MCS_NOT_SUPPORTED || + (mcs_80_map_rx & 0x3) == IEEE80211_HE_MCS_NOT_SUPPORTED) { + sdata_info(sdata, + "Missing mandatory rates for 1 Nss, rx 0x%x, tx 0x%x, disable HE\n", + mcs_80_map_tx, mcs_80_map_rx); + return false; + } + + if (!he_op) + return true; + + ap_min_req_set = le16_to_cpu(he_op->he_mcs_nss_set); + + /* + * Apparently iPhone 13 (at least iOS version 15.3.1) sets this to all + * zeroes, which is nonsense, and completely inconsistent with itself + * (it doesn't have 8 streams). Accept the settings in this case anyway. + */ + if (!ap_min_req_set) + return true; + + /* make sure the AP is consistent with itself + * + * P802.11-REVme/D0.3 + * 26.17.1 Basic HE BSS operation + * + * A STA that is operating in an HE BSS shall be able to receive and + * transmit at each of the <HE-MCS, NSS> tuple values indicated by the + * Basic HE-MCS And NSS Set field of the HE Operation parameter of the + * MLME-START.request primitive and shall be able to receive at each of + * the <HE-MCS, NSS> tuple values indicated by the Supported HE-MCS and + * NSS Set field in the HE Capabilities parameter of the MLMESTART.request + * primitive + */ + for (nss = 8; nss > 0; nss--) { + u8 ap_op_val = (ap_min_req_set >> (2 * (nss - 1))) & 3; + u8 ap_rx_val; + u8 ap_tx_val; + + if (ap_op_val == IEEE80211_HE_MCS_NOT_SUPPORTED) + continue; + + ap_rx_val = (mcs_80_map_rx >> (2 * (nss - 1))) & 3; + ap_tx_val = (mcs_80_map_tx >> (2 * (nss - 1))) & 3; + + if (ap_rx_val == IEEE80211_HE_MCS_NOT_SUPPORTED || + ap_tx_val == IEEE80211_HE_MCS_NOT_SUPPORTED || + ap_rx_val < ap_op_val || ap_tx_val < ap_op_val) { + sdata_info(sdata, + "Invalid rates for %d Nss, rx %d, tx %d oper %d, disable HE\n", + nss, ap_rx_val, ap_rx_val, ap_op_val); + return false; + } + } + + return true; +} + +static bool +ieee80211_verify_sta_he_mcs_support(struct ieee80211_sub_if_data *sdata, + struct ieee80211_supported_band *sband, + const struct ieee80211_he_operation *he_op) +{ + const struct ieee80211_sta_he_cap *sta_he_cap = + ieee80211_get_he_iftype_cap(sband, + ieee80211_vif_type_p2p(&sdata->vif)); + u16 ap_min_req_set; + int i; + + if (!sta_he_cap || !he_op) + return false; + + ap_min_req_set = le16_to_cpu(he_op->he_mcs_nss_set); + + /* + * Apparently iPhone 13 (at least iOS version 15.3.1) sets this to all + * zeroes, which is nonsense, and completely inconsistent with itself + * (it doesn't have 8 streams). Accept the settings in this case anyway. + */ + if (!ap_min_req_set) + return true; + + /* Need to go over for 80MHz, 160MHz and for 80+80 */ + for (i = 0; i < 3; i++) { + const struct ieee80211_he_mcs_nss_supp *sta_mcs_nss_supp = + &sta_he_cap->he_mcs_nss_supp; + u16 sta_mcs_map_rx = + le16_to_cpu(((__le16 *)sta_mcs_nss_supp)[2 * i]); + u16 sta_mcs_map_tx = + le16_to_cpu(((__le16 *)sta_mcs_nss_supp)[2 * i + 1]); + u8 nss; + bool verified = true; + + /* + * For each band there is a maximum of 8 spatial streams + * possible. Each of the sta_mcs_map_* is a 16-bit struct built + * of 2 bits per NSS (1-8), with the values defined in enum + * ieee80211_he_mcs_support. Need to make sure STA TX and RX + * capabilities aren't less than the AP's minimum requirements + * for this HE BSS per SS. + * It is enough to find one such band that meets the reqs. + */ + for (nss = 8; nss > 0; nss--) { + u8 sta_rx_val = (sta_mcs_map_rx >> (2 * (nss - 1))) & 3; + u8 sta_tx_val = (sta_mcs_map_tx >> (2 * (nss - 1))) & 3; + u8 ap_val = (ap_min_req_set >> (2 * (nss - 1))) & 3; + + if (ap_val == IEEE80211_HE_MCS_NOT_SUPPORTED) + continue; + + /* + * Make sure the HE AP doesn't require MCSs that aren't + * supported by the client as required by spec + * + * P802.11-REVme/D0.3 + * 26.17.1 Basic HE BSS operation + * + * An HE STA shall not attempt to join * (MLME-JOIN.request primitive) + * a BSS, unless it supports (i.e., is able to both transmit and + * receive using) all of the <HE-MCS, NSS> tuples in the basic + * HE-MCS and NSS set. + */ + if (sta_rx_val == IEEE80211_HE_MCS_NOT_SUPPORTED || + sta_tx_val == IEEE80211_HE_MCS_NOT_SUPPORTED || + (ap_val > sta_rx_val) || (ap_val > sta_tx_val)) { + verified = false; + break; + } + } + + if (verified) + return true; + } + + /* If here, STA doesn't meet AP's HE min requirements */ + return false; +} + +static int ieee80211_prep_channel(struct ieee80211_sub_if_data *sdata, + struct ieee80211_link_data *link, + struct cfg80211_bss *cbss, + ieee80211_conn_flags_t *conn_flags) +{ + struct ieee80211_local *local = sdata->local; + const struct ieee80211_ht_cap *ht_cap = NULL; + const struct ieee80211_ht_operation *ht_oper = NULL; + const struct ieee80211_vht_operation *vht_oper = NULL; + const struct ieee80211_he_operation *he_oper = NULL; + const struct ieee80211_eht_operation *eht_oper = NULL; + const struct ieee80211_s1g_oper_ie *s1g_oper = NULL; + struct ieee80211_supported_band *sband; + struct cfg80211_chan_def chandef; + bool is_6ghz = cbss->channel->band == NL80211_BAND_6GHZ; + bool is_5ghz = cbss->channel->band == NL80211_BAND_5GHZ; + struct ieee80211_bss *bss = (void *)cbss->priv; + struct ieee80211_elems_parse_params parse_params = { + .bss = cbss, + .link_id = -1, + .from_ap = true, + }; + struct ieee802_11_elems *elems; + const struct cfg80211_bss_ies *ies; + int ret; + u32 i; + bool have_80mhz; + + rcu_read_lock(); + + ies = rcu_dereference(cbss->ies); + parse_params.start = ies->data; + parse_params.len = ies->len; + elems = ieee802_11_parse_elems_full(&parse_params); + if (!elems) { + rcu_read_unlock(); + return -ENOMEM; + } + + sband = local->hw.wiphy->bands[cbss->channel->band]; + + *conn_flags &= ~(IEEE80211_CONN_DISABLE_40MHZ | + IEEE80211_CONN_DISABLE_80P80MHZ | + IEEE80211_CONN_DISABLE_160MHZ); + + /* disable HT/VHT/HE if we don't support them */ + if (!sband->ht_cap.ht_supported && !is_6ghz) { + mlme_dbg(sdata, "HT not supported, disabling HT/VHT/HE/EHT\n"); + *conn_flags |= IEEE80211_CONN_DISABLE_HT; + *conn_flags |= IEEE80211_CONN_DISABLE_VHT; + *conn_flags |= IEEE80211_CONN_DISABLE_HE; + *conn_flags |= IEEE80211_CONN_DISABLE_EHT; + } + + if (!sband->vht_cap.vht_supported && is_5ghz) { + mlme_dbg(sdata, "VHT not supported, disabling VHT/HE/EHT\n"); + *conn_flags |= IEEE80211_CONN_DISABLE_VHT; + *conn_flags |= IEEE80211_CONN_DISABLE_HE; + *conn_flags |= IEEE80211_CONN_DISABLE_EHT; + } + + if (!ieee80211_get_he_iftype_cap(sband, + ieee80211_vif_type_p2p(&sdata->vif))) { + mlme_dbg(sdata, "HE not supported, disabling HE and EHT\n"); + *conn_flags |= IEEE80211_CONN_DISABLE_HE; + *conn_flags |= IEEE80211_CONN_DISABLE_EHT; + } + + if (!ieee80211_get_eht_iftype_cap(sband, + ieee80211_vif_type_p2p(&sdata->vif))) { + mlme_dbg(sdata, "EHT not supported, disabling EHT\n"); + *conn_flags |= IEEE80211_CONN_DISABLE_EHT; + } + + if (!(*conn_flags & IEEE80211_CONN_DISABLE_HT) && !is_6ghz) { + ht_oper = elems->ht_operation; + ht_cap = elems->ht_cap_elem; + + if (!ht_cap) { + *conn_flags |= IEEE80211_CONN_DISABLE_HT; + ht_oper = NULL; + } + } + + if (!(*conn_flags & IEEE80211_CONN_DISABLE_VHT) && !is_6ghz) { + vht_oper = elems->vht_operation; + if (vht_oper && !ht_oper) { + vht_oper = NULL; + sdata_info(sdata, + "AP advertised VHT without HT, disabling HT/VHT/HE\n"); + *conn_flags |= IEEE80211_CONN_DISABLE_HT; + *conn_flags |= IEEE80211_CONN_DISABLE_VHT; + *conn_flags |= IEEE80211_CONN_DISABLE_HE; + *conn_flags |= IEEE80211_CONN_DISABLE_EHT; + } + + if (!elems->vht_cap_elem) { + *conn_flags |= IEEE80211_CONN_DISABLE_VHT; + vht_oper = NULL; + } + } + + if (!(*conn_flags & IEEE80211_CONN_DISABLE_HE)) { + he_oper = elems->he_operation; + + if (link && is_6ghz) { + struct ieee80211_bss_conf *bss_conf; + u8 j = 0; + + bss_conf = link->conf; + + if (elems->pwr_constr_elem) + bss_conf->pwr_reduction = *elems->pwr_constr_elem; + + BUILD_BUG_ON(ARRAY_SIZE(bss_conf->tx_pwr_env) != + ARRAY_SIZE(elems->tx_pwr_env)); + + for (i = 0; i < elems->tx_pwr_env_num; i++) { + if (elems->tx_pwr_env_len[i] > + sizeof(bss_conf->tx_pwr_env[j])) + continue; + + bss_conf->tx_pwr_env_num++; + memcpy(&bss_conf->tx_pwr_env[j], elems->tx_pwr_env[i], + elems->tx_pwr_env_len[i]); + j++; + } + } + + if (!ieee80211_verify_peer_he_mcs_support(sdata, ies, he_oper) || + !ieee80211_verify_sta_he_mcs_support(sdata, sband, he_oper)) + *conn_flags |= IEEE80211_CONN_DISABLE_HE | + IEEE80211_CONN_DISABLE_EHT; + } + + /* + * EHT requires HE to be supported as well. Specifically for 6 GHz + * channels, the operation channel information can only be deduced from + * both the 6 GHz operation information (from the HE operation IE) and + * EHT operation. + */ + if (!(*conn_flags & + (IEEE80211_CONN_DISABLE_HE | + IEEE80211_CONN_DISABLE_EHT)) && + he_oper) { + const struct cfg80211_bss_ies *cbss_ies; + const u8 *eht_oper_ie; + + cbss_ies = rcu_dereference(cbss->ies); + eht_oper_ie = cfg80211_find_ext_ie(WLAN_EID_EXT_EHT_OPERATION, + cbss_ies->data, cbss_ies->len); + if (eht_oper_ie && eht_oper_ie[1] >= + 1 + sizeof(struct ieee80211_eht_operation)) + eht_oper = (void *)(eht_oper_ie + 3); + else + eht_oper = NULL; + } + + /* Allow VHT if at least one channel on the sband supports 80 MHz */ + have_80mhz = false; + for (i = 0; i < sband->n_channels; i++) { + if (sband->channels[i].flags & (IEEE80211_CHAN_DISABLED | + IEEE80211_CHAN_NO_80MHZ)) + continue; + + have_80mhz = true; + break; + } + + if (!have_80mhz) { + sdata_info(sdata, "80 MHz not supported, disabling VHT\n"); + *conn_flags |= IEEE80211_CONN_DISABLE_VHT; + } + + if (sband->band == NL80211_BAND_S1GHZ) { + s1g_oper = elems->s1g_oper; + if (!s1g_oper) + sdata_info(sdata, + "AP missing S1G operation element?\n"); + } + + *conn_flags |= + ieee80211_determine_chantype(sdata, link, *conn_flags, + sband, + cbss->channel, + bss->vht_cap_info, + ht_oper, vht_oper, + he_oper, eht_oper, + s1g_oper, + &chandef, false); + + if (link) + link->needed_rx_chains = + min(ieee80211_max_rx_chains(link, cbss), + local->rx_chains); + + rcu_read_unlock(); + /* the element data was RCU protected so no longer valid anyway */ + kfree(elems); + elems = NULL; + + if (*conn_flags & IEEE80211_CONN_DISABLE_HE && is_6ghz) { + sdata_info(sdata, "Rejecting non-HE 6/7 GHz connection"); + return -EINVAL; + } + + if (!link) + return 0; + + /* will change later if needed */ + link->smps_mode = IEEE80211_SMPS_OFF; + + mutex_lock(&local->mtx); + /* + * If this fails (possibly due to channel context sharing + * on incompatible channels, e.g. 80+80 and 160 sharing the + * same control channel) try to use a smaller bandwidth. + */ + ret = ieee80211_link_use_channel(link, &chandef, + IEEE80211_CHANCTX_SHARED); + + /* don't downgrade for 5 and 10 MHz channels, though. */ + if (chandef.width == NL80211_CHAN_WIDTH_5 || + chandef.width == NL80211_CHAN_WIDTH_10) + goto out; + + while (ret && chandef.width != NL80211_CHAN_WIDTH_20_NOHT) { + *conn_flags |= + ieee80211_chandef_downgrade(&chandef); + ret = ieee80211_link_use_channel(link, &chandef, + IEEE80211_CHANCTX_SHARED); + } + out: + mutex_unlock(&local->mtx); + return ret; +} + +static bool ieee80211_get_dtim(const struct cfg80211_bss_ies *ies, + u8 *dtim_count, u8 *dtim_period) +{ + const u8 *tim_ie = cfg80211_find_ie(WLAN_EID_TIM, ies->data, ies->len); + const u8 *idx_ie = cfg80211_find_ie(WLAN_EID_MULTI_BSSID_IDX, ies->data, + ies->len); + const struct ieee80211_tim_ie *tim = NULL; + const struct ieee80211_bssid_index *idx; + bool valid = tim_ie && tim_ie[1] >= 2; + + if (valid) + tim = (void *)(tim_ie + 2); + + if (dtim_count) + *dtim_count = valid ? tim->dtim_count : 0; + + if (dtim_period) + *dtim_period = valid ? tim->dtim_period : 0; + + /* Check if value is overridden by non-transmitted profile */ + if (!idx_ie || idx_ie[1] < 3) + return valid; + + idx = (void *)(idx_ie + 2); + + if (dtim_count) + *dtim_count = idx->dtim_count; + + if (dtim_period) + *dtim_period = idx->dtim_period; + + return true; +} + +static bool ieee80211_assoc_success(struct ieee80211_sub_if_data *sdata, + struct ieee80211_mgmt *mgmt, + struct ieee802_11_elems *elems, + const u8 *elem_start, unsigned int elem_len) +{ + struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; + struct ieee80211_mgd_assoc_data *assoc_data = ifmgd->assoc_data; + struct ieee80211_local *local = sdata->local; + unsigned int link_id; + struct sta_info *sta; + u64 changed[IEEE80211_MLD_MAX_NUM_LINKS] = {}; + u16 valid_links = 0; + int err; + + mutex_lock(&sdata->local->sta_mtx); + /* + * station info was already allocated and inserted before + * the association and should be available to us + */ + sta = sta_info_get(sdata, assoc_data->ap_addr); + if (WARN_ON(!sta)) + goto out_err; + + if (sdata->vif.valid_links) { + for (link_id = 0; link_id < IEEE80211_MLD_MAX_NUM_LINKS; link_id++) { + if (!assoc_data->link[link_id].bss) + continue; + valid_links |= BIT(link_id); + + if (link_id != assoc_data->assoc_link_id) { + err = ieee80211_sta_allocate_link(sta, link_id); + if (err) + goto out_err; + } + } + + ieee80211_vif_set_links(sdata, valid_links); + } + + for (link_id = 0; link_id < IEEE80211_MLD_MAX_NUM_LINKS; link_id++) { + struct cfg80211_bss *cbss = assoc_data->link[link_id].bss; + struct ieee80211_link_data *link; + struct link_sta_info *link_sta; + + if (!cbss) + continue; + + link = sdata_dereference(sdata->link[link_id], sdata); + if (WARN_ON(!link)) + goto out_err; + + if (sdata->vif.valid_links) + link_info(link, + "local address %pM, AP link address %pM%s\n", + link->conf->addr, + assoc_data->link[link_id].bss->bssid, + link_id == assoc_data->assoc_link_id ? + " (assoc)" : ""); + + link_sta = rcu_dereference_protected(sta->link[link_id], + lockdep_is_held(&local->sta_mtx)); + if (WARN_ON(!link_sta)) + goto out_err; + + if (!link->u.mgd.have_beacon) { + const struct cfg80211_bss_ies *ies; + + rcu_read_lock(); + ies = rcu_dereference(cbss->beacon_ies); + if (ies) + link->u.mgd.have_beacon = true; + else + ies = rcu_dereference(cbss->ies); + ieee80211_get_dtim(ies, + &link->conf->sync_dtim_count, + &link->u.mgd.dtim_period); + link->conf->beacon_int = cbss->beacon_interval; + rcu_read_unlock(); + } + + link->conf->dtim_period = link->u.mgd.dtim_period ?: 1; + + if (link_id != assoc_data->assoc_link_id) { + err = ieee80211_prep_channel(sdata, link, cbss, + &link->u.mgd.conn_flags); + if (err) { + link_info(link, "prep_channel failed\n"); + goto out_err; + } + } + + err = ieee80211_mgd_setup_link_sta(link, sta, link_sta, + assoc_data->link[link_id].bss); + if (err) + goto out_err; + + if (!ieee80211_assoc_config_link(link, link_sta, + assoc_data->link[link_id].bss, + mgmt, elem_start, elem_len, + &changed[link_id])) + goto out_err; + + if (assoc_data->link[link_id].status != WLAN_STATUS_SUCCESS) { + valid_links &= ~BIT(link_id); + ieee80211_sta_remove_link(sta, link_id); + continue; + } + + if (link_id != assoc_data->assoc_link_id) { + err = ieee80211_sta_activate_link(sta, link_id); + if (err) + goto out_err; + } + } + + /* links might have changed due to rejected ones, set them again */ + ieee80211_vif_set_links(sdata, valid_links); + + rate_control_rate_init(sta); + + if (ifmgd->flags & IEEE80211_STA_MFP_ENABLED) { + set_sta_flag(sta, WLAN_STA_MFP); + sta->sta.mfp = true; + } else { + sta->sta.mfp = false; + } + + ieee80211_sta_set_max_amsdu_subframes(sta, elems->ext_capab, + elems->ext_capab_len); + + sta->sta.wme = (elems->wmm_param || elems->s1g_capab) && + local->hw.queues >= IEEE80211_NUM_ACS; + + err = sta_info_move_state(sta, IEEE80211_STA_ASSOC); + if (!err && !(ifmgd->flags & IEEE80211_STA_CONTROL_PORT)) + err = sta_info_move_state(sta, IEEE80211_STA_AUTHORIZED); + if (err) { + sdata_info(sdata, + "failed to move station %pM to desired state\n", + sta->sta.addr); + WARN_ON(__sta_info_destroy(sta)); + goto out_err; + } + + if (sdata->wdev.use_4addr) + drv_sta_set_4addr(local, sdata, &sta->sta, true); + + mutex_unlock(&sdata->local->sta_mtx); + + ieee80211_set_associated(sdata, assoc_data, changed); + + /* + * If we're using 4-addr mode, let the AP know that we're + * doing so, so that it can create the STA VLAN on its side + */ + if (ifmgd->use_4addr) + ieee80211_send_4addr_nullfunc(local, sdata); + + /* + * Start timer to probe the connection to the AP now. + * Also start the timer that will detect beacon loss. + */ + ieee80211_sta_reset_beacon_monitor(sdata); + ieee80211_sta_reset_conn_monitor(sdata); + + return true; +out_err: + eth_zero_addr(sdata->vif.cfg.ap_addr); + mutex_unlock(&sdata->local->sta_mtx); + return false; +} + +static void ieee80211_rx_mgmt_assoc_resp(struct ieee80211_sub_if_data *sdata, + struct ieee80211_mgmt *mgmt, + size_t len) +{ + struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; + struct ieee80211_mgd_assoc_data *assoc_data = ifmgd->assoc_data; + u16 capab_info, status_code, aid; + struct ieee80211_elems_parse_params parse_params = { + .bss = NULL, + .link_id = -1, + .from_ap = true, + }; + struct ieee802_11_elems *elems; + int ac; + const u8 *elem_start; + unsigned int elem_len; + bool reassoc; + struct ieee80211_event event = { + .type = MLME_EVENT, + .u.mlme.data = ASSOC_EVENT, + }; + struct ieee80211_prep_tx_info info = {}; + struct cfg80211_rx_assoc_resp resp = { + .uapsd_queues = -1, + }; + u8 ap_mld_addr[ETH_ALEN] __aligned(2); + unsigned int link_id; + + sdata_assert_lock(sdata); + + if (!assoc_data) + return; + + if (!ether_addr_equal(assoc_data->ap_addr, mgmt->bssid) || + !ether_addr_equal(assoc_data->ap_addr, mgmt->sa)) + return; + + /* + * AssocResp and ReassocResp have identical structure, so process both + * of them in this function. + */ + + if (len < 24 + 6) + return; + + reassoc = ieee80211_is_reassoc_resp(mgmt->frame_control); + capab_info = le16_to_cpu(mgmt->u.assoc_resp.capab_info); + status_code = le16_to_cpu(mgmt->u.assoc_resp.status_code); + if (assoc_data->s1g) + elem_start = mgmt->u.s1g_assoc_resp.variable; + else + elem_start = mgmt->u.assoc_resp.variable; + + /* + * Note: this may not be perfect, AP might misbehave - if + * anyone needs to rely on perfect complete notification + * with the exact right subtype, then we need to track what + * we actually transmitted. + */ + info.subtype = reassoc ? IEEE80211_STYPE_REASSOC_REQ : + IEEE80211_STYPE_ASSOC_REQ; + + if (assoc_data->fils_kek_len && + fils_decrypt_assoc_resp(sdata, (u8 *)mgmt, &len, assoc_data) < 0) + return; + + elem_len = len - (elem_start - (u8 *)mgmt); + parse_params.start = elem_start; + parse_params.len = elem_len; + elems = ieee802_11_parse_elems_full(&parse_params); + if (!elems) + goto notify_driver; + + if (elems->aid_resp) + aid = le16_to_cpu(elems->aid_resp->aid); + else if (assoc_data->s1g) + aid = 0; /* TODO */ + else + aid = le16_to_cpu(mgmt->u.assoc_resp.aid); + + /* + * The 5 MSB of the AID field are reserved + * (802.11-2016 9.4.1.8 AID field) + */ + aid &= 0x7ff; + + sdata_info(sdata, + "RX %sssocResp from %pM (capab=0x%x status=%d aid=%d)\n", + reassoc ? "Rea" : "A", assoc_data->ap_addr, + capab_info, status_code, (u16)(aid & ~(BIT(15) | BIT(14)))); + + ifmgd->broken_ap = false; + + if (status_code == WLAN_STATUS_ASSOC_REJECTED_TEMPORARILY && + elems->timeout_int && + elems->timeout_int->type == WLAN_TIMEOUT_ASSOC_COMEBACK) { + u32 tu, ms; + + cfg80211_assoc_comeback(sdata->dev, assoc_data->ap_addr, + le32_to_cpu(elems->timeout_int->value)); + + tu = le32_to_cpu(elems->timeout_int->value); + ms = tu * 1024 / 1000; + sdata_info(sdata, + "%pM rejected association temporarily; comeback duration %u TU (%u ms)\n", + assoc_data->ap_addr, tu, ms); + assoc_data->timeout = jiffies + msecs_to_jiffies(ms); + assoc_data->timeout_started = true; + if (ms > IEEE80211_ASSOC_TIMEOUT) + run_again(sdata, assoc_data->timeout); + goto notify_driver; + } + + if (status_code != WLAN_STATUS_SUCCESS) { + sdata_info(sdata, "%pM denied association (code=%d)\n", + assoc_data->ap_addr, status_code); + event.u.mlme.status = MLME_DENIED; + event.u.mlme.reason = status_code; + drv_event_callback(sdata->local, sdata, &event); + } else { + if (aid == 0 || aid > IEEE80211_MAX_AID) { + sdata_info(sdata, + "invalid AID value %d (out of range), turn off PS\n", + aid); + aid = 0; + ifmgd->broken_ap = true; + } + + if (sdata->vif.valid_links) { + if (!elems->multi_link) { + sdata_info(sdata, + "MLO association with %pM but no multi-link element in response!\n", + assoc_data->ap_addr); + goto abandon_assoc; + } + + if (le16_get_bits(elems->multi_link->control, + IEEE80211_ML_CONTROL_TYPE) != + IEEE80211_ML_CONTROL_TYPE_BASIC) { + sdata_info(sdata, + "bad multi-link element (control=0x%x)\n", + le16_to_cpu(elems->multi_link->control)); + goto abandon_assoc; + } else { + struct ieee80211_mle_basic_common_info *common; + + common = (void *)elems->multi_link->variable; + + if (memcmp(assoc_data->ap_addr, + common->mld_mac_addr, ETH_ALEN)) { + sdata_info(sdata, + "AP MLD MAC address mismatch: got %pM expected %pM\n", + common->mld_mac_addr, + assoc_data->ap_addr); + goto abandon_assoc; + } + } + } + + sdata->vif.cfg.aid = aid; + + if (!ieee80211_assoc_success(sdata, mgmt, elems, + elem_start, elem_len)) { + /* oops -- internal error -- send timeout for now */ + ieee80211_destroy_assoc_data(sdata, ASSOC_TIMEOUT); + goto notify_driver; + } + event.u.mlme.status = MLME_SUCCESS; + drv_event_callback(sdata->local, sdata, &event); + sdata_info(sdata, "associated\n"); + + info.success = 1; + } + + for (link_id = 0; link_id < IEEE80211_MLD_MAX_NUM_LINKS; link_id++) { + struct ieee80211_link_data *link; + + link = sdata_dereference(sdata->link[link_id], sdata); + if (!link) + continue; + + if (!assoc_data->link[link_id].bss) + continue; + + resp.links[link_id].bss = assoc_data->link[link_id].bss; + resp.links[link_id].addr = link->conf->addr; + resp.links[link_id].status = assoc_data->link[link_id].status; + + /* get uapsd queues configuration - same for all links */ + resp.uapsd_queues = 0; + for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) + if (link->tx_conf[ac].uapsd) + resp.uapsd_queues |= ieee80211_ac_to_qos_mask[ac]; + } + + if (sdata->vif.valid_links) { + ether_addr_copy(ap_mld_addr, sdata->vif.cfg.ap_addr); + resp.ap_mld_addr = ap_mld_addr; + } + + ieee80211_destroy_assoc_data(sdata, + status_code == WLAN_STATUS_SUCCESS ? + ASSOC_SUCCESS : + ASSOC_REJECTED); + + resp.buf = (u8 *)mgmt; + resp.len = len; + resp.req_ies = ifmgd->assoc_req_ies; + resp.req_ies_len = ifmgd->assoc_req_ies_len; + cfg80211_rx_assoc_resp(sdata->dev, &resp); +notify_driver: + drv_mgd_complete_tx(sdata->local, sdata, &info); + kfree(elems); + return; +abandon_assoc: + ieee80211_destroy_assoc_data(sdata, ASSOC_ABANDON); + goto notify_driver; +} + +static void ieee80211_rx_bss_info(struct ieee80211_link_data *link, + struct ieee80211_mgmt *mgmt, size_t len, + struct ieee80211_rx_status *rx_status) +{ + struct ieee80211_sub_if_data *sdata = link->sdata; + struct ieee80211_local *local = sdata->local; + struct ieee80211_bss *bss; + struct ieee80211_channel *channel; + + sdata_assert_lock(sdata); + + channel = ieee80211_get_channel_khz(local->hw.wiphy, + ieee80211_rx_status_to_khz(rx_status)); + if (!channel) + return; + + bss = ieee80211_bss_info_update(local, rx_status, mgmt, len, channel); + if (bss) { + link->conf->beacon_rate = bss->beacon_rate; + ieee80211_rx_bss_put(local, bss); + } +} + + +static void ieee80211_rx_mgmt_probe_resp(struct ieee80211_link_data *link, + struct sk_buff *skb) +{ + struct ieee80211_sub_if_data *sdata = link->sdata; + struct ieee80211_mgmt *mgmt = (void *)skb->data; + struct ieee80211_if_managed *ifmgd; + struct ieee80211_rx_status *rx_status = (void *) skb->cb; + struct ieee80211_channel *channel; + size_t baselen, len = skb->len; + + ifmgd = &sdata->u.mgd; + + sdata_assert_lock(sdata); + + /* + * According to Draft P802.11ax D6.0 clause 26.17.2.3.2: + * "If a 6 GHz AP receives a Probe Request frame and responds with + * a Probe Response frame [..], the Address 1 field of the Probe + * Response frame shall be set to the broadcast address [..]" + * So, on 6GHz band we should also accept broadcast responses. + */ + channel = ieee80211_get_channel(sdata->local->hw.wiphy, + rx_status->freq); + if (!channel) + return; + + if (!ether_addr_equal(mgmt->da, sdata->vif.addr) && + (channel->band != NL80211_BAND_6GHZ || + !is_broadcast_ether_addr(mgmt->da))) + return; /* ignore ProbeResp to foreign address */ + + baselen = (u8 *) mgmt->u.probe_resp.variable - (u8 *) mgmt; + if (baselen > len) + return; + + ieee80211_rx_bss_info(link, mgmt, len, rx_status); + + if (ifmgd->associated && + ether_addr_equal(mgmt->bssid, link->u.mgd.bssid)) + ieee80211_reset_ap_probe(sdata); +} + +/* + * This is the canonical list of information elements we care about, + * the filter code also gives us all changes to the Microsoft OUI + * (00:50:F2) vendor IE which is used for WMM which we need to track, + * as well as the DTPC IE (part of the Cisco OUI) used for signaling + * changes to requested client power. + * + * We implement beacon filtering in software since that means we can + * avoid processing the frame here and in cfg80211, and userspace + * will not be able to tell whether the hardware supports it or not. + * + * XXX: This list needs to be dynamic -- userspace needs to be able to + * add items it requires. It also needs to be able to tell us to + * look out for other vendor IEs. + */ +static const u64 care_about_ies = + (1ULL << WLAN_EID_COUNTRY) | + (1ULL << WLAN_EID_ERP_INFO) | + (1ULL << WLAN_EID_CHANNEL_SWITCH) | + (1ULL << WLAN_EID_PWR_CONSTRAINT) | + (1ULL << WLAN_EID_HT_CAPABILITY) | + (1ULL << WLAN_EID_HT_OPERATION) | + (1ULL << WLAN_EID_EXT_CHANSWITCH_ANN); + +static void ieee80211_handle_beacon_sig(struct ieee80211_link_data *link, + struct ieee80211_if_managed *ifmgd, + struct ieee80211_bss_conf *bss_conf, + struct ieee80211_local *local, + struct ieee80211_rx_status *rx_status) +{ + struct ieee80211_sub_if_data *sdata = link->sdata; + + /* Track average RSSI from the Beacon frames of the current AP */ + + if (!link->u.mgd.tracking_signal_avg) { + link->u.mgd.tracking_signal_avg = true; + ewma_beacon_signal_init(&link->u.mgd.ave_beacon_signal); + link->u.mgd.last_cqm_event_signal = 0; + link->u.mgd.count_beacon_signal = 1; + link->u.mgd.last_ave_beacon_signal = 0; + } else { + link->u.mgd.count_beacon_signal++; + } + + ewma_beacon_signal_add(&link->u.mgd.ave_beacon_signal, + -rx_status->signal); + + if (ifmgd->rssi_min_thold != ifmgd->rssi_max_thold && + link->u.mgd.count_beacon_signal >= IEEE80211_SIGNAL_AVE_MIN_COUNT) { + int sig = -ewma_beacon_signal_read(&link->u.mgd.ave_beacon_signal); + int last_sig = link->u.mgd.last_ave_beacon_signal; + struct ieee80211_event event = { + .type = RSSI_EVENT, + }; + + /* + * if signal crosses either of the boundaries, invoke callback + * with appropriate parameters + */ + if (sig > ifmgd->rssi_max_thold && + (last_sig <= ifmgd->rssi_min_thold || last_sig == 0)) { + link->u.mgd.last_ave_beacon_signal = sig; + event.u.rssi.data = RSSI_EVENT_HIGH; + drv_event_callback(local, sdata, &event); + } else if (sig < ifmgd->rssi_min_thold && + (last_sig >= ifmgd->rssi_max_thold || + last_sig == 0)) { + link->u.mgd.last_ave_beacon_signal = sig; + event.u.rssi.data = RSSI_EVENT_LOW; + drv_event_callback(local, sdata, &event); + } + } + + if (bss_conf->cqm_rssi_thold && + link->u.mgd.count_beacon_signal >= IEEE80211_SIGNAL_AVE_MIN_COUNT && + !(sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI)) { + int sig = -ewma_beacon_signal_read(&link->u.mgd.ave_beacon_signal); + int last_event = link->u.mgd.last_cqm_event_signal; + int thold = bss_conf->cqm_rssi_thold; + int hyst = bss_conf->cqm_rssi_hyst; + + if (sig < thold && + (last_event == 0 || sig < last_event - hyst)) { + link->u.mgd.last_cqm_event_signal = sig; + ieee80211_cqm_rssi_notify( + &sdata->vif, + NL80211_CQM_RSSI_THRESHOLD_EVENT_LOW, + sig, GFP_KERNEL); + } else if (sig > thold && + (last_event == 0 || sig > last_event + hyst)) { + link->u.mgd.last_cqm_event_signal = sig; + ieee80211_cqm_rssi_notify( + &sdata->vif, + NL80211_CQM_RSSI_THRESHOLD_EVENT_HIGH, + sig, GFP_KERNEL); + } + } + + if (bss_conf->cqm_rssi_low && + link->u.mgd.count_beacon_signal >= IEEE80211_SIGNAL_AVE_MIN_COUNT) { + int sig = -ewma_beacon_signal_read(&link->u.mgd.ave_beacon_signal); + int last_event = link->u.mgd.last_cqm_event_signal; + int low = bss_conf->cqm_rssi_low; + int high = bss_conf->cqm_rssi_high; + + if (sig < low && + (last_event == 0 || last_event >= low)) { + link->u.mgd.last_cqm_event_signal = sig; + ieee80211_cqm_rssi_notify( + &sdata->vif, + NL80211_CQM_RSSI_THRESHOLD_EVENT_LOW, + sig, GFP_KERNEL); + } else if (sig > high && + (last_event == 0 || last_event <= high)) { + link->u.mgd.last_cqm_event_signal = sig; + ieee80211_cqm_rssi_notify( + &sdata->vif, + NL80211_CQM_RSSI_THRESHOLD_EVENT_HIGH, + sig, GFP_KERNEL); + } + } +} + +static bool ieee80211_rx_our_beacon(const u8 *tx_bssid, + struct cfg80211_bss *bss) +{ + if (ether_addr_equal(tx_bssid, bss->bssid)) + return true; + if (!bss->transmitted_bss) + return false; + return ether_addr_equal(tx_bssid, bss->transmitted_bss->bssid); +} + +static bool ieee80211_config_puncturing(struct ieee80211_link_data *link, + const struct ieee80211_eht_operation *eht_oper, + u64 *changed) +{ + u16 bitmap = 0, extracted; + + if ((eht_oper->params & IEEE80211_EHT_OPER_INFO_PRESENT) && + (eht_oper->params & + IEEE80211_EHT_OPER_DISABLED_SUBCHANNEL_BITMAP_PRESENT)) { + const struct ieee80211_eht_operation_info *info = + (void *)eht_oper->optional; + const u8 *disable_subchannel_bitmap = info->optional; + + bitmap = get_unaligned_le16(disable_subchannel_bitmap); + } + + extracted = ieee80211_extract_dis_subch_bmap(eht_oper, + &link->conf->chandef, + bitmap); + + /* accept if there are no changes */ + if (!(*changed & BSS_CHANGED_BANDWIDTH) && + extracted == link->conf->eht_puncturing) + return true; + + if (!cfg80211_valid_disable_subchannel_bitmap(&bitmap, + &link->conf->chandef)) { + link_info(link, + "Got an invalid disable subchannel bitmap from AP %pM: bitmap = 0x%x, bw = 0x%x. disconnect\n", + link->u.mgd.bssid, + bitmap, + link->conf->chandef.width); + return false; + } + + ieee80211_handle_puncturing_bitmap(link, eht_oper, bitmap, changed); + return true; +} + +static void ieee80211_rx_mgmt_beacon(struct ieee80211_link_data *link, + struct ieee80211_hdr *hdr, size_t len, + struct ieee80211_rx_status *rx_status) +{ + struct ieee80211_sub_if_data *sdata = link->sdata; + struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; + struct ieee80211_bss_conf *bss_conf = &sdata->vif.bss_conf; + struct ieee80211_vif_cfg *vif_cfg = &sdata->vif.cfg; + struct ieee80211_mgmt *mgmt = (void *) hdr; + size_t baselen; + struct ieee802_11_elems *elems; + struct ieee80211_local *local = sdata->local; + struct ieee80211_chanctx_conf *chanctx_conf; + struct ieee80211_supported_band *sband; + struct ieee80211_channel *chan; + struct link_sta_info *link_sta; + struct sta_info *sta; + u64 changed = 0; + bool erp_valid; + u8 erp_value = 0; + u32 ncrc = 0; + u8 *bssid, *variable = mgmt->u.beacon.variable; + u8 deauth_buf[IEEE80211_DEAUTH_FRAME_LEN]; + struct ieee80211_elems_parse_params parse_params = { + .link_id = -1, + .from_ap = true, + }; + + sdata_assert_lock(sdata); + + /* Process beacon from the current BSS */ + bssid = ieee80211_get_bssid(hdr, len, sdata->vif.type); + if (ieee80211_is_s1g_beacon(mgmt->frame_control)) { + struct ieee80211_ext *ext = (void *) mgmt; + + if (ieee80211_is_s1g_short_beacon(ext->frame_control)) + variable = ext->u.s1g_short_beacon.variable; + else + variable = ext->u.s1g_beacon.variable; + } + + baselen = (u8 *) variable - (u8 *) mgmt; + if (baselen > len) + return; + + parse_params.start = variable; + parse_params.len = len - baselen; + + rcu_read_lock(); + chanctx_conf = rcu_dereference(link->conf->chanctx_conf); + if (!chanctx_conf) { + rcu_read_unlock(); + return; + } + + if (ieee80211_rx_status_to_khz(rx_status) != + ieee80211_channel_to_khz(chanctx_conf->def.chan)) { + rcu_read_unlock(); + return; + } + chan = chanctx_conf->def.chan; + rcu_read_unlock(); + + if (ifmgd->assoc_data && ifmgd->assoc_data->need_beacon && + !WARN_ON(sdata->vif.valid_links) && + ieee80211_rx_our_beacon(bssid, ifmgd->assoc_data->link[0].bss)) { + parse_params.bss = ifmgd->assoc_data->link[0].bss; + elems = ieee802_11_parse_elems_full(&parse_params); + if (!elems) + return; + + ieee80211_rx_bss_info(link, mgmt, len, rx_status); + + if (elems->dtim_period) + link->u.mgd.dtim_period = elems->dtim_period; + link->u.mgd.have_beacon = true; + ifmgd->assoc_data->need_beacon = false; + if (ieee80211_hw_check(&local->hw, TIMING_BEACON_ONLY)) { + link->conf->sync_tsf = + le64_to_cpu(mgmt->u.beacon.timestamp); + link->conf->sync_device_ts = + rx_status->device_timestamp; + link->conf->sync_dtim_count = elems->dtim_count; + } + + if (elems->mbssid_config_ie) + bss_conf->profile_periodicity = + elems->mbssid_config_ie->profile_periodicity; + else + bss_conf->profile_periodicity = 0; + + if (elems->ext_capab_len >= 11 && + (elems->ext_capab[10] & WLAN_EXT_CAPA11_EMA_SUPPORT)) + bss_conf->ema_ap = true; + else + bss_conf->ema_ap = false; + + /* continue assoc process */ + ifmgd->assoc_data->timeout = jiffies; + ifmgd->assoc_data->timeout_started = true; + run_again(sdata, ifmgd->assoc_data->timeout); + kfree(elems); + return; + } + + if (!ifmgd->associated || + !ieee80211_rx_our_beacon(bssid, link->u.mgd.bss)) + return; + bssid = link->u.mgd.bssid; + + if (!(rx_status->flag & RX_FLAG_NO_SIGNAL_VAL)) + ieee80211_handle_beacon_sig(link, ifmgd, bss_conf, + local, rx_status); + + if (ifmgd->flags & IEEE80211_STA_CONNECTION_POLL) { + mlme_dbg_ratelimited(sdata, + "cancelling AP probe due to a received beacon\n"); + ieee80211_reset_ap_probe(sdata); + } + + /* + * Push the beacon loss detection into the future since + * we are processing a beacon from the AP just now. + */ + ieee80211_sta_reset_beacon_monitor(sdata); + + /* TODO: CRC urrently not calculated on S1G Beacon Compatibility + * element (which carries the beacon interval). Don't forget to add a + * bit to care_about_ies[] above if mac80211 is interested in a + * changing S1G element. + */ + if (!ieee80211_is_s1g_beacon(hdr->frame_control)) + ncrc = crc32_be(0, (void *)&mgmt->u.beacon.beacon_int, 4); + parse_params.bss = link->u.mgd.bss; + parse_params.filter = care_about_ies; + parse_params.crc = ncrc; + elems = ieee802_11_parse_elems_full(&parse_params); + if (!elems) + return; + ncrc = elems->crc; + + if (ieee80211_hw_check(&local->hw, PS_NULLFUNC_STACK) && + ieee80211_check_tim(elems->tim, elems->tim_len, vif_cfg->aid)) { + if (local->hw.conf.dynamic_ps_timeout > 0) { + if (local->hw.conf.flags & IEEE80211_CONF_PS) { + local->hw.conf.flags &= ~IEEE80211_CONF_PS; + ieee80211_hw_config(local, + IEEE80211_CONF_CHANGE_PS); + } + ieee80211_send_nullfunc(local, sdata, false); + } else if (!local->pspolling && sdata->u.mgd.powersave) { + local->pspolling = true; + + /* + * Here is assumed that the driver will be + * able to send ps-poll frame and receive a + * response even though power save mode is + * enabled, but some drivers might require + * to disable power save here. This needs + * to be investigated. + */ + ieee80211_send_pspoll(local, sdata); + } + } + + if (sdata->vif.p2p || + sdata->vif.driver_flags & IEEE80211_VIF_GET_NOA_UPDATE) { + struct ieee80211_p2p_noa_attr noa = {}; + int ret; + + ret = cfg80211_get_p2p_attr(variable, + len - baselen, + IEEE80211_P2P_ATTR_ABSENCE_NOTICE, + (u8 *) &noa, sizeof(noa)); + if (ret >= 2) { + if (link->u.mgd.p2p_noa_index != noa.index) { + /* valid noa_attr and index changed */ + link->u.mgd.p2p_noa_index = noa.index; + memcpy(&bss_conf->p2p_noa_attr, &noa, sizeof(noa)); + changed |= BSS_CHANGED_P2P_PS; + /* + * make sure we update all information, the CRC + * mechanism doesn't look at P2P attributes. + */ + link->u.mgd.beacon_crc_valid = false; + } + } else if (link->u.mgd.p2p_noa_index != -1) { + /* noa_attr not found and we had valid noa_attr before */ + link->u.mgd.p2p_noa_index = -1; + memset(&bss_conf->p2p_noa_attr, 0, sizeof(bss_conf->p2p_noa_attr)); + changed |= BSS_CHANGED_P2P_PS; + link->u.mgd.beacon_crc_valid = false; + } + } + + if (link->u.mgd.csa_waiting_bcn) + ieee80211_chswitch_post_beacon(link); + + /* + * Update beacon timing and dtim count on every beacon appearance. This + * will allow the driver to use the most updated values. Do it before + * comparing this one with last received beacon. + * IMPORTANT: These parameters would possibly be out of sync by the time + * the driver will use them. The synchronized view is currently + * guaranteed only in certain callbacks. + */ + if (ieee80211_hw_check(&local->hw, TIMING_BEACON_ONLY) && + !ieee80211_is_s1g_beacon(hdr->frame_control)) { + link->conf->sync_tsf = + le64_to_cpu(mgmt->u.beacon.timestamp); + link->conf->sync_device_ts = + rx_status->device_timestamp; + link->conf->sync_dtim_count = elems->dtim_count; + } + + if ((ncrc == link->u.mgd.beacon_crc && link->u.mgd.beacon_crc_valid) || + ieee80211_is_s1g_short_beacon(mgmt->frame_control)) + goto free; + link->u.mgd.beacon_crc = ncrc; + link->u.mgd.beacon_crc_valid = true; + + ieee80211_rx_bss_info(link, mgmt, len, rx_status); + + ieee80211_sta_process_chanswitch(link, rx_status->mactime, + rx_status->device_timestamp, + elems, true); + + if (!link->u.mgd.disable_wmm_tracking && + ieee80211_sta_wmm_params(local, link, elems->wmm_param, + elems->wmm_param_len, + elems->mu_edca_param_set)) + changed |= BSS_CHANGED_QOS; + + /* + * If we haven't had a beacon before, tell the driver about the + * DTIM period (and beacon timing if desired) now. + */ + if (!link->u.mgd.have_beacon) { + /* a few bogus AP send dtim_period = 0 or no TIM IE */ + bss_conf->dtim_period = elems->dtim_period ?: 1; + + changed |= BSS_CHANGED_BEACON_INFO; + link->u.mgd.have_beacon = true; + + mutex_lock(&local->iflist_mtx); + ieee80211_recalc_ps(local); + mutex_unlock(&local->iflist_mtx); + + ieee80211_recalc_ps_vif(sdata); + } + + if (elems->erp_info) { + erp_valid = true; + erp_value = elems->erp_info[0]; + } else { + erp_valid = false; + } + + if (!ieee80211_is_s1g_beacon(hdr->frame_control)) + changed |= ieee80211_handle_bss_capability(link, + le16_to_cpu(mgmt->u.beacon.capab_info), + erp_valid, erp_value); + + mutex_lock(&local->sta_mtx); + sta = sta_info_get(sdata, sdata->vif.cfg.ap_addr); + if (WARN_ON(!sta)) { + mutex_unlock(&local->sta_mtx); + goto free; + } + link_sta = rcu_dereference_protected(sta->link[link->link_id], + lockdep_is_held(&local->sta_mtx)); + if (WARN_ON(!link_sta)) { + mutex_unlock(&local->sta_mtx); + goto free; + } + + if (WARN_ON(!link->conf->chandef.chan)) + goto free; + + sband = local->hw.wiphy->bands[link->conf->chandef.chan->band]; + + changed |= ieee80211_recalc_twt_req(sdata, sband, link, link_sta, elems); + + if (ieee80211_config_bw(link, elems->ht_cap_elem, + elems->vht_cap_elem, elems->ht_operation, + elems->vht_operation, elems->he_operation, + elems->eht_operation, + elems->s1g_oper, bssid, &changed)) { + mutex_unlock(&local->sta_mtx); + sdata_info(sdata, + "failed to follow AP %pM bandwidth change, disconnect\n", + bssid); + ieee80211_set_disassoc(sdata, IEEE80211_STYPE_DEAUTH, + WLAN_REASON_DEAUTH_LEAVING, + true, deauth_buf); + ieee80211_report_disconnect(sdata, deauth_buf, + sizeof(deauth_buf), true, + WLAN_REASON_DEAUTH_LEAVING, + false); + goto free; + } + + if (sta && elems->opmode_notif) + ieee80211_vht_handle_opmode(sdata, link_sta, + *elems->opmode_notif, + rx_status->band); + mutex_unlock(&local->sta_mtx); + + changed |= ieee80211_handle_pwr_constr(link, chan, mgmt, + elems->country_elem, + elems->country_elem_len, + elems->pwr_constr_elem, + elems->cisco_dtpc_elem); + + if (elems->eht_operation && + !(link->u.mgd.conn_flags & IEEE80211_CONN_DISABLE_EHT)) { + if (!ieee80211_config_puncturing(link, elems->eht_operation, + &changed)) { + ieee80211_set_disassoc(sdata, IEEE80211_STYPE_DEAUTH, + WLAN_REASON_DEAUTH_LEAVING, + true, deauth_buf); + ieee80211_report_disconnect(sdata, deauth_buf, + sizeof(deauth_buf), true, + WLAN_REASON_DEAUTH_LEAVING, + false); + goto free; + } + } + + ieee80211_link_info_change_notify(sdata, link, changed); +free: + kfree(elems); +} + +void ieee80211_sta_rx_queued_ext(struct ieee80211_sub_if_data *sdata, + struct sk_buff *skb) +{ + struct ieee80211_link_data *link = &sdata->deflink; + struct ieee80211_rx_status *rx_status; + struct ieee80211_hdr *hdr; + u16 fc; + + rx_status = (struct ieee80211_rx_status *) skb->cb; + hdr = (struct ieee80211_hdr *) skb->data; + fc = le16_to_cpu(hdr->frame_control); + + sdata_lock(sdata); + switch (fc & IEEE80211_FCTL_STYPE) { + case IEEE80211_STYPE_S1G_BEACON: + ieee80211_rx_mgmt_beacon(link, hdr, skb->len, rx_status); + break; + } + sdata_unlock(sdata); +} + +void ieee80211_sta_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata, + struct sk_buff *skb) +{ + struct ieee80211_link_data *link = &sdata->deflink; + struct ieee80211_rx_status *rx_status; + struct ieee80211_mgmt *mgmt; + u16 fc; + int ies_len; + + rx_status = (struct ieee80211_rx_status *) skb->cb; + mgmt = (struct ieee80211_mgmt *) skb->data; + fc = le16_to_cpu(mgmt->frame_control); + + sdata_lock(sdata); + + if (rx_status->link_valid) { + link = sdata_dereference(sdata->link[rx_status->link_id], + sdata); + if (!link) + goto out; + } + + switch (fc & IEEE80211_FCTL_STYPE) { + case IEEE80211_STYPE_BEACON: + ieee80211_rx_mgmt_beacon(link, (void *)mgmt, + skb->len, rx_status); + break; + case IEEE80211_STYPE_PROBE_RESP: + ieee80211_rx_mgmt_probe_resp(link, skb); + break; + case IEEE80211_STYPE_AUTH: + ieee80211_rx_mgmt_auth(sdata, mgmt, skb->len); + break; + case IEEE80211_STYPE_DEAUTH: + ieee80211_rx_mgmt_deauth(sdata, mgmt, skb->len); + break; + case IEEE80211_STYPE_DISASSOC: + ieee80211_rx_mgmt_disassoc(sdata, mgmt, skb->len); + break; + case IEEE80211_STYPE_ASSOC_RESP: + case IEEE80211_STYPE_REASSOC_RESP: + ieee80211_rx_mgmt_assoc_resp(sdata, mgmt, skb->len); + break; + case IEEE80211_STYPE_ACTION: + if (mgmt->u.action.category == WLAN_CATEGORY_SPECTRUM_MGMT) { + struct ieee802_11_elems *elems; + + ies_len = skb->len - + offsetof(struct ieee80211_mgmt, + u.action.u.chan_switch.variable); + + if (ies_len < 0) + break; + + /* CSA IE cannot be overridden, no need for BSSID */ + elems = ieee802_11_parse_elems( + mgmt->u.action.u.chan_switch.variable, + ies_len, true, NULL); + + if (elems && !elems->parse_error) + ieee80211_sta_process_chanswitch(link, + rx_status->mactime, + rx_status->device_timestamp, + elems, false); + kfree(elems); + } else if (mgmt->u.action.category == WLAN_CATEGORY_PUBLIC) { + struct ieee802_11_elems *elems; + + ies_len = skb->len - + offsetof(struct ieee80211_mgmt, + u.action.u.ext_chan_switch.variable); + + if (ies_len < 0) + break; + + /* + * extended CSA IE can't be overridden, no need for + * BSSID + */ + elems = ieee802_11_parse_elems( + mgmt->u.action.u.ext_chan_switch.variable, + ies_len, true, NULL); + + if (elems && !elems->parse_error) { + /* for the handling code pretend it was an IE */ + elems->ext_chansw_ie = + &mgmt->u.action.u.ext_chan_switch.data; + + ieee80211_sta_process_chanswitch(link, + rx_status->mactime, + rx_status->device_timestamp, + elems, false); + } + + kfree(elems); + } + break; + } +out: + sdata_unlock(sdata); +} + +static void ieee80211_sta_timer(struct timer_list *t) +{ + struct ieee80211_sub_if_data *sdata = + from_timer(sdata, t, u.mgd.timer); + + ieee80211_queue_work(&sdata->local->hw, &sdata->work); +} + +void ieee80211_sta_connection_lost(struct ieee80211_sub_if_data *sdata, + u8 reason, bool tx) +{ + u8 frame_buf[IEEE80211_DEAUTH_FRAME_LEN]; + + ieee80211_set_disassoc(sdata, IEEE80211_STYPE_DEAUTH, reason, + tx, frame_buf); + + ieee80211_report_disconnect(sdata, frame_buf, sizeof(frame_buf), true, + reason, false); +} + +static int ieee80211_auth(struct ieee80211_sub_if_data *sdata) +{ + struct ieee80211_local *local = sdata->local; + struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; + struct ieee80211_mgd_auth_data *auth_data = ifmgd->auth_data; + u32 tx_flags = 0; + u16 trans = 1; + u16 status = 0; + struct ieee80211_prep_tx_info info = { + .subtype = IEEE80211_STYPE_AUTH, + }; + + sdata_assert_lock(sdata); + + if (WARN_ON_ONCE(!auth_data)) + return -EINVAL; + + auth_data->tries++; + + if (auth_data->tries > IEEE80211_AUTH_MAX_TRIES) { + sdata_info(sdata, "authentication with %pM timed out\n", + auth_data->ap_addr); + + /* + * Most likely AP is not in the range so remove the + * bss struct for that AP. + */ + cfg80211_unlink_bss(local->hw.wiphy, auth_data->bss); + + return -ETIMEDOUT; + } + + if (auth_data->algorithm == WLAN_AUTH_SAE) + info.duration = jiffies_to_msecs(IEEE80211_AUTH_TIMEOUT_SAE); + + drv_mgd_prepare_tx(local, sdata, &info); + + sdata_info(sdata, "send auth to %pM (try %d/%d)\n", + auth_data->ap_addr, auth_data->tries, + IEEE80211_AUTH_MAX_TRIES); + + auth_data->expected_transaction = 2; + + if (auth_data->algorithm == WLAN_AUTH_SAE) { + trans = auth_data->sae_trans; + status = auth_data->sae_status; + auth_data->expected_transaction = trans; + } + + if (ieee80211_hw_check(&local->hw, REPORTS_TX_ACK_STATUS)) + tx_flags = IEEE80211_TX_CTL_REQ_TX_STATUS | + IEEE80211_TX_INTFL_MLME_CONN_TX; + + ieee80211_send_auth(sdata, trans, auth_data->algorithm, status, + auth_data->data, auth_data->data_len, + auth_data->ap_addr, auth_data->ap_addr, + NULL, 0, 0, tx_flags); + + if (tx_flags == 0) { + if (auth_data->algorithm == WLAN_AUTH_SAE) + auth_data->timeout = jiffies + + IEEE80211_AUTH_TIMEOUT_SAE; + else + auth_data->timeout = jiffies + IEEE80211_AUTH_TIMEOUT; + } else { + auth_data->timeout = + round_jiffies_up(jiffies + IEEE80211_AUTH_TIMEOUT_LONG); + } + + auth_data->timeout_started = true; + run_again(sdata, auth_data->timeout); + + return 0; +} + +static int ieee80211_do_assoc(struct ieee80211_sub_if_data *sdata) +{ + struct ieee80211_mgd_assoc_data *assoc_data = sdata->u.mgd.assoc_data; + struct ieee80211_local *local = sdata->local; + int ret; + + sdata_assert_lock(sdata); + + assoc_data->tries++; + if (assoc_data->tries > IEEE80211_ASSOC_MAX_TRIES) { + sdata_info(sdata, "association with %pM timed out\n", + assoc_data->ap_addr); + + /* + * Most likely AP is not in the range so remove the + * bss struct for that AP. + */ + cfg80211_unlink_bss(local->hw.wiphy, + assoc_data->link[assoc_data->assoc_link_id].bss); + + return -ETIMEDOUT; + } + + sdata_info(sdata, "associate with %pM (try %d/%d)\n", + assoc_data->ap_addr, assoc_data->tries, + IEEE80211_ASSOC_MAX_TRIES); + ret = ieee80211_send_assoc(sdata); + if (ret) + return ret; + + if (!ieee80211_hw_check(&local->hw, REPORTS_TX_ACK_STATUS)) { + assoc_data->timeout = jiffies + IEEE80211_ASSOC_TIMEOUT; + assoc_data->timeout_started = true; + run_again(sdata, assoc_data->timeout); + } else { + assoc_data->timeout = + round_jiffies_up(jiffies + + IEEE80211_ASSOC_TIMEOUT_LONG); + assoc_data->timeout_started = true; + run_again(sdata, assoc_data->timeout); + } + + return 0; +} + +void ieee80211_mgd_conn_tx_status(struct ieee80211_sub_if_data *sdata, + __le16 fc, bool acked) +{ + struct ieee80211_local *local = sdata->local; + + sdata->u.mgd.status_fc = fc; + sdata->u.mgd.status_acked = acked; + sdata->u.mgd.status_received = true; + + ieee80211_queue_work(&local->hw, &sdata->work); +} + +void ieee80211_sta_work(struct ieee80211_sub_if_data *sdata) +{ + struct ieee80211_local *local = sdata->local; + struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; + + sdata_lock(sdata); + + if (ifmgd->status_received) { + __le16 fc = ifmgd->status_fc; + bool status_acked = ifmgd->status_acked; + + ifmgd->status_received = false; + if (ifmgd->auth_data && ieee80211_is_auth(fc)) { + if (status_acked) { + if (ifmgd->auth_data->algorithm == + WLAN_AUTH_SAE) + ifmgd->auth_data->timeout = + jiffies + + IEEE80211_AUTH_TIMEOUT_SAE; + else + ifmgd->auth_data->timeout = + jiffies + + IEEE80211_AUTH_TIMEOUT_SHORT; + run_again(sdata, ifmgd->auth_data->timeout); + } else { + ifmgd->auth_data->timeout = jiffies - 1; + } + ifmgd->auth_data->timeout_started = true; + } else if (ifmgd->assoc_data && + (ieee80211_is_assoc_req(fc) || + ieee80211_is_reassoc_req(fc))) { + if (status_acked) { + ifmgd->assoc_data->timeout = + jiffies + IEEE80211_ASSOC_TIMEOUT_SHORT; + run_again(sdata, ifmgd->assoc_data->timeout); + } else { + ifmgd->assoc_data->timeout = jiffies - 1; + } + ifmgd->assoc_data->timeout_started = true; + } + } + + if (ifmgd->auth_data && ifmgd->auth_data->timeout_started && + time_after(jiffies, ifmgd->auth_data->timeout)) { + if (ifmgd->auth_data->done || ifmgd->auth_data->waiting) { + /* + * ok ... we waited for assoc or continuation but + * userspace didn't do it, so kill the auth data + */ + ieee80211_destroy_auth_data(sdata, false); + } else if (ieee80211_auth(sdata)) { + u8 ap_addr[ETH_ALEN]; + struct ieee80211_event event = { + .type = MLME_EVENT, + .u.mlme.data = AUTH_EVENT, + .u.mlme.status = MLME_TIMEOUT, + }; + + memcpy(ap_addr, ifmgd->auth_data->ap_addr, ETH_ALEN); + + ieee80211_destroy_auth_data(sdata, false); + + cfg80211_auth_timeout(sdata->dev, ap_addr); + drv_event_callback(sdata->local, sdata, &event); + } + } else if (ifmgd->auth_data && ifmgd->auth_data->timeout_started) + run_again(sdata, ifmgd->auth_data->timeout); + + if (ifmgd->assoc_data && ifmgd->assoc_data->timeout_started && + time_after(jiffies, ifmgd->assoc_data->timeout)) { + if ((ifmgd->assoc_data->need_beacon && + !sdata->deflink.u.mgd.have_beacon) || + ieee80211_do_assoc(sdata)) { + struct ieee80211_event event = { + .type = MLME_EVENT, + .u.mlme.data = ASSOC_EVENT, + .u.mlme.status = MLME_TIMEOUT, + }; + + ieee80211_destroy_assoc_data(sdata, ASSOC_TIMEOUT); + drv_event_callback(sdata->local, sdata, &event); + } + } else if (ifmgd->assoc_data && ifmgd->assoc_data->timeout_started) + run_again(sdata, ifmgd->assoc_data->timeout); + + if (ifmgd->flags & IEEE80211_STA_CONNECTION_POLL && + ifmgd->associated) { + u8 *bssid = sdata->deflink.u.mgd.bssid; + int max_tries; + + if (ieee80211_hw_check(&local->hw, REPORTS_TX_ACK_STATUS)) + max_tries = max_nullfunc_tries; + else + max_tries = max_probe_tries; + + /* ACK received for nullfunc probing frame */ + if (!ifmgd->probe_send_count) + ieee80211_reset_ap_probe(sdata); + else if (ifmgd->nullfunc_failed) { + if (ifmgd->probe_send_count < max_tries) { + mlme_dbg(sdata, + "No ack for nullfunc frame to AP %pM, try %d/%i\n", + bssid, ifmgd->probe_send_count, + max_tries); + ieee80211_mgd_probe_ap_send(sdata); + } else { + mlme_dbg(sdata, + "No ack for nullfunc frame to AP %pM, disconnecting.\n", + bssid); + ieee80211_sta_connection_lost(sdata, + WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY, + false); + } + } else if (time_is_after_jiffies(ifmgd->probe_timeout)) + run_again(sdata, ifmgd->probe_timeout); + else if (ieee80211_hw_check(&local->hw, REPORTS_TX_ACK_STATUS)) { + mlme_dbg(sdata, + "Failed to send nullfunc to AP %pM after %dms, disconnecting\n", + bssid, probe_wait_ms); + ieee80211_sta_connection_lost(sdata, + WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY, false); + } else if (ifmgd->probe_send_count < max_tries) { + mlme_dbg(sdata, + "No probe response from AP %pM after %dms, try %d/%i\n", + bssid, probe_wait_ms, + ifmgd->probe_send_count, max_tries); + ieee80211_mgd_probe_ap_send(sdata); + } else { + /* + * We actually lost the connection ... or did we? + * Let's make sure! + */ + mlme_dbg(sdata, + "No probe response from AP %pM after %dms, disconnecting.\n", + bssid, probe_wait_ms); + + ieee80211_sta_connection_lost(sdata, + WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY, false); + } + } + + sdata_unlock(sdata); +} + +static void ieee80211_sta_bcn_mon_timer(struct timer_list *t) +{ + struct ieee80211_sub_if_data *sdata = + from_timer(sdata, t, u.mgd.bcn_mon_timer); + + if (WARN_ON(sdata->vif.valid_links)) + return; + + if (sdata->vif.bss_conf.csa_active && + !sdata->deflink.u.mgd.csa_waiting_bcn) + return; + + if (sdata->vif.driver_flags & IEEE80211_VIF_BEACON_FILTER) + return; + + sdata->u.mgd.connection_loss = false; + ieee80211_queue_work(&sdata->local->hw, + &sdata->u.mgd.beacon_connection_loss_work); +} + +static void ieee80211_sta_conn_mon_timer(struct timer_list *t) +{ + struct ieee80211_sub_if_data *sdata = + from_timer(sdata, t, u.mgd.conn_mon_timer); + struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; + struct ieee80211_local *local = sdata->local; + struct sta_info *sta; + unsigned long timeout; + + if (WARN_ON(sdata->vif.valid_links)) + return; + + if (sdata->vif.bss_conf.csa_active && + !sdata->deflink.u.mgd.csa_waiting_bcn) + return; + + sta = sta_info_get(sdata, sdata->vif.cfg.ap_addr); + if (!sta) + return; + + timeout = sta->deflink.status_stats.last_ack; + if (time_before(sta->deflink.status_stats.last_ack, sta->deflink.rx_stats.last_rx)) + timeout = sta->deflink.rx_stats.last_rx; + timeout += IEEE80211_CONNECTION_IDLE_TIME; + + /* If timeout is after now, then update timer to fire at + * the later date, but do not actually probe at this time. + */ + if (time_is_after_jiffies(timeout)) { + mod_timer(&ifmgd->conn_mon_timer, round_jiffies_up(timeout)); + return; + } + + ieee80211_queue_work(&local->hw, &ifmgd->monitor_work); +} + +static void ieee80211_sta_monitor_work(struct work_struct *work) +{ + struct ieee80211_sub_if_data *sdata = + container_of(work, struct ieee80211_sub_if_data, + u.mgd.monitor_work); + + ieee80211_mgd_probe_ap(sdata, false); +} + +static void ieee80211_restart_sta_timer(struct ieee80211_sub_if_data *sdata) +{ + if (sdata->vif.type == NL80211_IFTYPE_STATION) { + __ieee80211_stop_poll(sdata); + + /* let's probe the connection once */ + if (!ieee80211_hw_check(&sdata->local->hw, CONNECTION_MONITOR)) + ieee80211_queue_work(&sdata->local->hw, + &sdata->u.mgd.monitor_work); + } +} + +#ifdef CONFIG_PM +void ieee80211_mgd_quiesce(struct ieee80211_sub_if_data *sdata) +{ + struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; + u8 frame_buf[IEEE80211_DEAUTH_FRAME_LEN]; + + sdata_lock(sdata); + + if (ifmgd->auth_data || ifmgd->assoc_data) { + const u8 *ap_addr = ifmgd->auth_data ? + ifmgd->auth_data->ap_addr : + ifmgd->assoc_data->ap_addr; + + /* + * If we are trying to authenticate / associate while suspending, + * cfg80211 won't know and won't actually abort those attempts, + * thus we need to do that ourselves. + */ + ieee80211_send_deauth_disassoc(sdata, ap_addr, ap_addr, + IEEE80211_STYPE_DEAUTH, + WLAN_REASON_DEAUTH_LEAVING, + false, frame_buf); + if (ifmgd->assoc_data) + ieee80211_destroy_assoc_data(sdata, ASSOC_ABANDON); + if (ifmgd->auth_data) + ieee80211_destroy_auth_data(sdata, false); + cfg80211_tx_mlme_mgmt(sdata->dev, frame_buf, + IEEE80211_DEAUTH_FRAME_LEN, + false); + } + + /* This is a bit of a hack - we should find a better and more generic + * solution to this. Normally when suspending, cfg80211 will in fact + * deauthenticate. However, it doesn't (and cannot) stop an ongoing + * auth (not so important) or assoc (this is the problem) process. + * + * As a consequence, it can happen that we are in the process of both + * associating and suspending, and receive an association response + * after cfg80211 has checked if it needs to disconnect, but before + * we actually set the flag to drop incoming frames. This will then + * cause the workqueue flush to process the association response in + * the suspend, resulting in a successful association just before it + * tries to remove the interface from the driver, which now though + * has a channel context assigned ... this results in issues. + * + * To work around this (for now) simply deauth here again if we're + * now connected. + */ + if (ifmgd->associated && !sdata->local->wowlan) { + u8 bssid[ETH_ALEN]; + struct cfg80211_deauth_request req = { + .reason_code = WLAN_REASON_DEAUTH_LEAVING, + .bssid = bssid, + }; + + memcpy(bssid, sdata->vif.cfg.ap_addr, ETH_ALEN); + ieee80211_mgd_deauth(sdata, &req); + } + + sdata_unlock(sdata); +} +#endif + +void ieee80211_sta_restart(struct ieee80211_sub_if_data *sdata) +{ + struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; + + sdata_lock(sdata); + if (!ifmgd->associated) { + sdata_unlock(sdata); + return; + } + + if (sdata->flags & IEEE80211_SDATA_DISCONNECT_RESUME) { + sdata->flags &= ~IEEE80211_SDATA_DISCONNECT_RESUME; + mlme_dbg(sdata, "driver requested disconnect after resume\n"); + ieee80211_sta_connection_lost(sdata, + WLAN_REASON_UNSPECIFIED, + true); + sdata_unlock(sdata); + return; + } + + if (sdata->flags & IEEE80211_SDATA_DISCONNECT_HW_RESTART) { + sdata->flags &= ~IEEE80211_SDATA_DISCONNECT_HW_RESTART; + mlme_dbg(sdata, "driver requested disconnect after hardware restart\n"); + ieee80211_sta_connection_lost(sdata, + WLAN_REASON_UNSPECIFIED, + true); + sdata_unlock(sdata); + return; + } + + sdata_unlock(sdata); +} + +static void ieee80211_request_smps_mgd_work(struct work_struct *work) +{ + struct ieee80211_link_data *link = + container_of(work, struct ieee80211_link_data, + u.mgd.request_smps_work); + + sdata_lock(link->sdata); + __ieee80211_request_smps_mgd(link->sdata, link, + link->u.mgd.driver_smps_mode); + sdata_unlock(link->sdata); +} + +/* interface setup */ +void ieee80211_sta_setup_sdata(struct ieee80211_sub_if_data *sdata) +{ + struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; + + INIT_WORK(&ifmgd->monitor_work, ieee80211_sta_monitor_work); + INIT_WORK(&ifmgd->beacon_connection_loss_work, + ieee80211_beacon_connection_loss_work); + INIT_WORK(&ifmgd->csa_connection_drop_work, + ieee80211_csa_connection_drop_work); + INIT_DELAYED_WORK(&ifmgd->tdls_peer_del_work, + ieee80211_tdls_peer_del_work); + timer_setup(&ifmgd->timer, ieee80211_sta_timer, 0); + timer_setup(&ifmgd->bcn_mon_timer, ieee80211_sta_bcn_mon_timer, 0); + timer_setup(&ifmgd->conn_mon_timer, ieee80211_sta_conn_mon_timer, 0); + INIT_DELAYED_WORK(&ifmgd->tx_tspec_wk, + ieee80211_sta_handle_tspec_ac_params_wk); + + ifmgd->flags = 0; + ifmgd->powersave = sdata->wdev.ps; + ifmgd->uapsd_queues = sdata->local->hw.uapsd_queues; + ifmgd->uapsd_max_sp_len = sdata->local->hw.uapsd_max_sp_len; + /* Setup TDLS data */ + spin_lock_init(&ifmgd->teardown_lock); + ifmgd->teardown_skb = NULL; + ifmgd->orig_teardown_skb = NULL; +} + +void ieee80211_mgd_setup_link(struct ieee80211_link_data *link) +{ + struct ieee80211_sub_if_data *sdata = link->sdata; + struct ieee80211_local *local = sdata->local; + unsigned int link_id = link->link_id; + + link->u.mgd.p2p_noa_index = -1; + link->u.mgd.conn_flags = 0; + link->conf->bssid = link->u.mgd.bssid; + + INIT_WORK(&link->u.mgd.request_smps_work, + ieee80211_request_smps_mgd_work); + if (local->hw.wiphy->features & NL80211_FEATURE_DYNAMIC_SMPS) + link->u.mgd.req_smps = IEEE80211_SMPS_AUTOMATIC; + else + link->u.mgd.req_smps = IEEE80211_SMPS_OFF; + + INIT_WORK(&link->u.mgd.chswitch_work, ieee80211_chswitch_work); + timer_setup(&link->u.mgd.chswitch_timer, ieee80211_chswitch_timer, 0); + + if (sdata->u.mgd.assoc_data) + ether_addr_copy(link->conf->addr, + sdata->u.mgd.assoc_data->link[link_id].addr); + else if (!is_valid_ether_addr(link->conf->addr)) + eth_random_addr(link->conf->addr); +} + +/* scan finished notification */ +void ieee80211_mlme_notify_scan_completed(struct ieee80211_local *local) +{ + struct ieee80211_sub_if_data *sdata; + + /* Restart STA timers */ + rcu_read_lock(); + list_for_each_entry_rcu(sdata, &local->interfaces, list) { + if (ieee80211_sdata_running(sdata)) + ieee80211_restart_sta_timer(sdata); + } + rcu_read_unlock(); +} + +static int ieee80211_prep_connection(struct ieee80211_sub_if_data *sdata, + struct cfg80211_bss *cbss, s8 link_id, + const u8 *ap_mld_addr, bool assoc, + bool override) +{ + struct ieee80211_local *local = sdata->local; + struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; + struct ieee80211_bss *bss = (void *)cbss->priv; + struct sta_info *new_sta = NULL; + struct ieee80211_link_data *link; + bool have_sta = false; + bool mlo; + int err; + + if (link_id >= 0) { + mlo = true; + if (WARN_ON(!ap_mld_addr)) + return -EINVAL; + err = ieee80211_vif_set_links(sdata, BIT(link_id)); + } else { + if (WARN_ON(ap_mld_addr)) + return -EINVAL; + ap_mld_addr = cbss->bssid; + err = ieee80211_vif_set_links(sdata, 0); + link_id = 0; + mlo = false; + } + + if (err) + return err; + + link = sdata_dereference(sdata->link[link_id], sdata); + if (WARN_ON(!link)) { + err = -ENOLINK; + goto out_err; + } + + if (WARN_ON(!ifmgd->auth_data && !ifmgd->assoc_data)) { + err = -EINVAL; + goto out_err; + } + + /* If a reconfig is happening, bail out */ + if (local->in_reconfig) { + err = -EBUSY; + goto out_err; + } + + if (assoc) { + rcu_read_lock(); + have_sta = sta_info_get(sdata, ap_mld_addr); + rcu_read_unlock(); + } + + if (!have_sta) { + if (mlo) + new_sta = sta_info_alloc_with_link(sdata, ap_mld_addr, + link_id, cbss->bssid, + GFP_KERNEL); + else + new_sta = sta_info_alloc(sdata, ap_mld_addr, GFP_KERNEL); + + if (!new_sta) { + err = -ENOMEM; + goto out_err; + } + + new_sta->sta.mlo = mlo; + } + + /* + * Set up the information for the new channel before setting the + * new channel. We can't - completely race-free - change the basic + * rates bitmap and the channel (sband) that it refers to, but if + * we set it up before we at least avoid calling into the driver's + * bss_info_changed() method with invalid information (since we do + * call that from changing the channel - only for IDLE and perhaps + * some others, but ...). + * + * So to avoid that, just set up all the new information before the + * channel, but tell the driver to apply it only afterwards, since + * it might need the new channel for that. + */ + if (new_sta) { + const struct cfg80211_bss_ies *ies; + struct link_sta_info *link_sta; + + rcu_read_lock(); + link_sta = rcu_dereference(new_sta->link[link_id]); + if (WARN_ON(!link_sta)) { + rcu_read_unlock(); + sta_info_free(local, new_sta); + err = -EINVAL; + goto out_err; + } + + err = ieee80211_mgd_setup_link_sta(link, new_sta, + link_sta, cbss); + if (err) { + rcu_read_unlock(); + sta_info_free(local, new_sta); + goto out_err; + } + + memcpy(link->u.mgd.bssid, cbss->bssid, ETH_ALEN); + + /* set timing information */ + link->conf->beacon_int = cbss->beacon_interval; + ies = rcu_dereference(cbss->beacon_ies); + if (ies) { + link->conf->sync_tsf = ies->tsf; + link->conf->sync_device_ts = + bss->device_ts_beacon; + + ieee80211_get_dtim(ies, + &link->conf->sync_dtim_count, + NULL); + } else if (!ieee80211_hw_check(&sdata->local->hw, + TIMING_BEACON_ONLY)) { + ies = rcu_dereference(cbss->proberesp_ies); + /* must be non-NULL since beacon IEs were NULL */ + link->conf->sync_tsf = ies->tsf; + link->conf->sync_device_ts = + bss->device_ts_presp; + link->conf->sync_dtim_count = 0; + } else { + link->conf->sync_tsf = 0; + link->conf->sync_device_ts = 0; + link->conf->sync_dtim_count = 0; + } + rcu_read_unlock(); + } + + if (new_sta || override) { + err = ieee80211_prep_channel(sdata, link, cbss, + &link->u.mgd.conn_flags); + if (err) { + if (new_sta) + sta_info_free(local, new_sta); + goto out_err; + } + } + + if (new_sta) { + /* + * tell driver about BSSID, basic rates and timing + * this was set up above, before setting the channel + */ + ieee80211_link_info_change_notify(sdata, link, + BSS_CHANGED_BSSID | + BSS_CHANGED_BASIC_RATES | + BSS_CHANGED_BEACON_INT); + + if (assoc) + sta_info_pre_move_state(new_sta, IEEE80211_STA_AUTH); + + err = sta_info_insert(new_sta); + new_sta = NULL; + if (err) { + sdata_info(sdata, + "failed to insert STA entry for the AP (error %d)\n", + err); + goto out_err; + } + } else + WARN_ON_ONCE(!ether_addr_equal(link->u.mgd.bssid, cbss->bssid)); + + /* Cancel scan to ensure that nothing interferes with connection */ + if (local->scanning) + ieee80211_scan_cancel(local); + + return 0; + +out_err: + ieee80211_link_release_channel(&sdata->deflink); + ieee80211_vif_set_links(sdata, 0); + return err; +} + +/* config hooks */ +int ieee80211_mgd_auth(struct ieee80211_sub_if_data *sdata, + struct cfg80211_auth_request *req) +{ + struct ieee80211_local *local = sdata->local; + struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; + struct ieee80211_mgd_auth_data *auth_data; + u16 auth_alg; + int err; + bool cont_auth; + + /* prepare auth data structure */ + + switch (req->auth_type) { + case NL80211_AUTHTYPE_OPEN_SYSTEM: + auth_alg = WLAN_AUTH_OPEN; + break; + case NL80211_AUTHTYPE_SHARED_KEY: + if (fips_enabled) + return -EOPNOTSUPP; + auth_alg = WLAN_AUTH_SHARED_KEY; + break; + case NL80211_AUTHTYPE_FT: + auth_alg = WLAN_AUTH_FT; + break; + case NL80211_AUTHTYPE_NETWORK_EAP: + auth_alg = WLAN_AUTH_LEAP; + break; + case NL80211_AUTHTYPE_SAE: + auth_alg = WLAN_AUTH_SAE; + break; + case NL80211_AUTHTYPE_FILS_SK: + auth_alg = WLAN_AUTH_FILS_SK; + break; + case NL80211_AUTHTYPE_FILS_SK_PFS: + auth_alg = WLAN_AUTH_FILS_SK_PFS; + break; + case NL80211_AUTHTYPE_FILS_PK: + auth_alg = WLAN_AUTH_FILS_PK; + break; + default: + return -EOPNOTSUPP; + } + + if (ifmgd->assoc_data) + return -EBUSY; + + auth_data = kzalloc(sizeof(*auth_data) + req->auth_data_len + + req->ie_len, GFP_KERNEL); + if (!auth_data) + return -ENOMEM; + + memcpy(auth_data->ap_addr, + req->ap_mld_addr ?: req->bss->bssid, + ETH_ALEN); + auth_data->bss = req->bss; + auth_data->link_id = req->link_id; + + if (req->auth_data_len >= 4) { + if (req->auth_type == NL80211_AUTHTYPE_SAE) { + __le16 *pos = (__le16 *) req->auth_data; + + auth_data->sae_trans = le16_to_cpu(pos[0]); + auth_data->sae_status = le16_to_cpu(pos[1]); + } + memcpy(auth_data->data, req->auth_data + 4, + req->auth_data_len - 4); + auth_data->data_len += req->auth_data_len - 4; + } + + /* Check if continuing authentication or trying to authenticate with the + * same BSS that we were in the process of authenticating with and avoid + * removal and re-addition of the STA entry in + * ieee80211_prep_connection(). + */ + cont_auth = ifmgd->auth_data && req->bss == ifmgd->auth_data->bss && + ifmgd->auth_data->link_id == req->link_id; + + if (req->ie && req->ie_len) { + memcpy(&auth_data->data[auth_data->data_len], + req->ie, req->ie_len); + auth_data->data_len += req->ie_len; + } + + if (req->key && req->key_len) { + auth_data->key_len = req->key_len; + auth_data->key_idx = req->key_idx; + memcpy(auth_data->key, req->key, req->key_len); + } + + auth_data->algorithm = auth_alg; + + /* try to authenticate/probe */ + + if (ifmgd->auth_data) { + if (cont_auth && req->auth_type == NL80211_AUTHTYPE_SAE) { + auth_data->peer_confirmed = + ifmgd->auth_data->peer_confirmed; + } + ieee80211_destroy_auth_data(sdata, cont_auth); + } + + /* prep auth_data so we don't go into idle on disassoc */ + ifmgd->auth_data = auth_data; + + /* If this is continuation of an ongoing SAE authentication exchange + * (i.e., request to send SAE Confirm) and the peer has already + * confirmed, mark authentication completed since we are about to send + * out SAE Confirm. + */ + if (cont_auth && req->auth_type == NL80211_AUTHTYPE_SAE && + auth_data->peer_confirmed && auth_data->sae_trans == 2) + ieee80211_mark_sta_auth(sdata); + + if (ifmgd->associated) { + u8 frame_buf[IEEE80211_DEAUTH_FRAME_LEN]; + + sdata_info(sdata, + "disconnect from AP %pM for new auth to %pM\n", + sdata->vif.cfg.ap_addr, auth_data->ap_addr); + ieee80211_set_disassoc(sdata, IEEE80211_STYPE_DEAUTH, + WLAN_REASON_UNSPECIFIED, + false, frame_buf); + + ieee80211_report_disconnect(sdata, frame_buf, + sizeof(frame_buf), true, + WLAN_REASON_UNSPECIFIED, + false); + } + + sdata_info(sdata, "authenticate with %pM\n", auth_data->ap_addr); + + /* needed for transmitting the auth frame(s) properly */ + memcpy(sdata->vif.cfg.ap_addr, auth_data->ap_addr, ETH_ALEN); + + err = ieee80211_prep_connection(sdata, req->bss, req->link_id, + req->ap_mld_addr, cont_auth, false); + if (err) + goto err_clear; + + err = ieee80211_auth(sdata); + if (err) { + sta_info_destroy_addr(sdata, auth_data->ap_addr); + goto err_clear; + } + + /* hold our own reference */ + cfg80211_ref_bss(local->hw.wiphy, auth_data->bss); + return 0; + + err_clear: + if (!sdata->vif.valid_links) { + eth_zero_addr(sdata->deflink.u.mgd.bssid); + ieee80211_link_info_change_notify(sdata, &sdata->deflink, + BSS_CHANGED_BSSID); + mutex_lock(&sdata->local->mtx); + ieee80211_link_release_channel(&sdata->deflink); + mutex_unlock(&sdata->local->mtx); + } + ifmgd->auth_data = NULL; + kfree(auth_data); + return err; +} + +static ieee80211_conn_flags_t +ieee80211_setup_assoc_link(struct ieee80211_sub_if_data *sdata, + struct ieee80211_mgd_assoc_data *assoc_data, + struct cfg80211_assoc_request *req, + ieee80211_conn_flags_t conn_flags, + unsigned int link_id) +{ + struct ieee80211_local *local = sdata->local; + const struct cfg80211_bss_ies *beacon_ies; + struct ieee80211_supported_band *sband; + const struct element *ht_elem, *vht_elem; + struct ieee80211_link_data *link; + struct cfg80211_bss *cbss; + struct ieee80211_bss *bss; + bool is_5ghz, is_6ghz; + + cbss = assoc_data->link[link_id].bss; + if (WARN_ON(!cbss)) + return 0; + + bss = (void *)cbss->priv; + + sband = local->hw.wiphy->bands[cbss->channel->band]; + if (WARN_ON(!sband)) + return 0; + + link = sdata_dereference(sdata->link[link_id], sdata); + if (WARN_ON(!link)) + return 0; + + is_5ghz = cbss->channel->band == NL80211_BAND_5GHZ; + is_6ghz = cbss->channel->band == NL80211_BAND_6GHZ; + + /* for MLO connections assume advertising all rates is OK */ + if (!req->ap_mld_addr) { + assoc_data->supp_rates = bss->supp_rates; + assoc_data->supp_rates_len = bss->supp_rates_len; + } + + /* copy and link elems for the STA profile */ + if (req->links[link_id].elems_len) { + memcpy(assoc_data->ie_pos, req->links[link_id].elems, + req->links[link_id].elems_len); + assoc_data->link[link_id].elems = assoc_data->ie_pos; + assoc_data->link[link_id].elems_len = req->links[link_id].elems_len; + assoc_data->ie_pos += req->links[link_id].elems_len; + } + + rcu_read_lock(); + ht_elem = ieee80211_bss_get_elem(cbss, WLAN_EID_HT_OPERATION); + if (ht_elem && ht_elem->datalen >= sizeof(struct ieee80211_ht_operation)) + assoc_data->link[link_id].ap_ht_param = + ((struct ieee80211_ht_operation *)(ht_elem->data))->ht_param; + else if (!is_6ghz) + conn_flags |= IEEE80211_CONN_DISABLE_HT; + vht_elem = ieee80211_bss_get_elem(cbss, WLAN_EID_VHT_CAPABILITY); + if (vht_elem && vht_elem->datalen >= sizeof(struct ieee80211_vht_cap)) { + memcpy(&assoc_data->link[link_id].ap_vht_cap, vht_elem->data, + sizeof(struct ieee80211_vht_cap)); + } else if (is_5ghz) { + link_info(link, + "VHT capa missing/short, disabling VHT/HE/EHT\n"); + conn_flags |= IEEE80211_CONN_DISABLE_VHT | + IEEE80211_CONN_DISABLE_HE | + IEEE80211_CONN_DISABLE_EHT; + } + rcu_read_unlock(); + + link->u.mgd.beacon_crc_valid = false; + link->u.mgd.dtim_period = 0; + link->u.mgd.have_beacon = false; + + /* override HT/VHT configuration only if the AP and we support it */ + if (!(conn_flags & IEEE80211_CONN_DISABLE_HT)) { + struct ieee80211_sta_ht_cap sta_ht_cap; + + memcpy(&sta_ht_cap, &sband->ht_cap, sizeof(sta_ht_cap)); + ieee80211_apply_htcap_overrides(sdata, &sta_ht_cap); + } + + link->conf->eht_puncturing = 0; + + rcu_read_lock(); + beacon_ies = rcu_dereference(cbss->beacon_ies); + if (beacon_ies) { + const struct ieee80211_eht_operation *eht_oper; + const struct element *elem; + u8 dtim_count = 0; + + ieee80211_get_dtim(beacon_ies, &dtim_count, + &link->u.mgd.dtim_period); + + sdata->deflink.u.mgd.have_beacon = true; + + if (ieee80211_hw_check(&local->hw, TIMING_BEACON_ONLY)) { + link->conf->sync_tsf = beacon_ies->tsf; + link->conf->sync_device_ts = bss->device_ts_beacon; + link->conf->sync_dtim_count = dtim_count; + } + + elem = cfg80211_find_ext_elem(WLAN_EID_EXT_MULTIPLE_BSSID_CONFIGURATION, + beacon_ies->data, beacon_ies->len); + if (elem && elem->datalen >= 3) + link->conf->profile_periodicity = elem->data[2]; + else + link->conf->profile_periodicity = 0; + + elem = cfg80211_find_elem(WLAN_EID_EXT_CAPABILITY, + beacon_ies->data, beacon_ies->len); + if (elem && elem->datalen >= 11 && + (elem->data[10] & WLAN_EXT_CAPA11_EMA_SUPPORT)) + link->conf->ema_ap = true; + else + link->conf->ema_ap = false; + + elem = cfg80211_find_ext_elem(WLAN_EID_EXT_EHT_OPERATION, + beacon_ies->data, beacon_ies->len); + eht_oper = (const void *)(elem->data + 1); + + if (elem && + ieee80211_eht_oper_size_ok((const void *)(elem->data + 1), + elem->datalen - 1) && + (eht_oper->params & IEEE80211_EHT_OPER_INFO_PRESENT) && + (eht_oper->params & IEEE80211_EHT_OPER_DISABLED_SUBCHANNEL_BITMAP_PRESENT)) { + const struct ieee80211_eht_operation_info *info = + (void *)eht_oper->optional; + const u8 *disable_subchannel_bitmap = info->optional; + u16 bitmap; + + bitmap = get_unaligned_le16(disable_subchannel_bitmap); + if (cfg80211_valid_disable_subchannel_bitmap(&bitmap, + &link->conf->chandef)) + ieee80211_handle_puncturing_bitmap(link, + eht_oper, + bitmap, + NULL); + else + conn_flags |= IEEE80211_CONN_DISABLE_EHT; + } + } + rcu_read_unlock(); + + if (bss->corrupt_data) { + char *corrupt_type = "data"; + + if (bss->corrupt_data & IEEE80211_BSS_CORRUPT_BEACON) { + if (bss->corrupt_data & IEEE80211_BSS_CORRUPT_PROBE_RESP) + corrupt_type = "beacon and probe response"; + else + corrupt_type = "beacon"; + } else if (bss->corrupt_data & IEEE80211_BSS_CORRUPT_PROBE_RESP) { + corrupt_type = "probe response"; + } + sdata_info(sdata, "associating to AP %pM with corrupt %s\n", + cbss->bssid, corrupt_type); + } + + if (link->u.mgd.req_smps == IEEE80211_SMPS_AUTOMATIC) { + if (sdata->u.mgd.powersave) + link->smps_mode = IEEE80211_SMPS_DYNAMIC; + else + link->smps_mode = IEEE80211_SMPS_OFF; + } else { + link->smps_mode = link->u.mgd.req_smps; + } + + return conn_flags; +} + +int ieee80211_mgd_assoc(struct ieee80211_sub_if_data *sdata, + struct cfg80211_assoc_request *req) +{ + unsigned int assoc_link_id = req->link_id < 0 ? 0 : req->link_id; + struct ieee80211_local *local = sdata->local; + struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; + struct ieee80211_mgd_assoc_data *assoc_data; + const struct element *ssid_elem; + struct ieee80211_vif_cfg *vif_cfg = &sdata->vif.cfg; + ieee80211_conn_flags_t conn_flags = 0; + struct ieee80211_link_data *link; + struct cfg80211_bss *cbss; + struct ieee80211_bss *bss; + bool override; + int i, err; + size_t size = sizeof(*assoc_data) + req->ie_len; + + for (i = 0; i < IEEE80211_MLD_MAX_NUM_LINKS; i++) + size += req->links[i].elems_len; + + /* FIXME: no support for 4-addr MLO yet */ + if (sdata->u.mgd.use_4addr && req->link_id >= 0) + return -EOPNOTSUPP; + + assoc_data = kzalloc(size, GFP_KERNEL); + if (!assoc_data) + return -ENOMEM; + + cbss = req->link_id < 0 ? req->bss : req->links[req->link_id].bss; + + rcu_read_lock(); + ssid_elem = ieee80211_bss_get_elem(cbss, WLAN_EID_SSID); + if (!ssid_elem || ssid_elem->datalen > sizeof(assoc_data->ssid)) { + rcu_read_unlock(); + kfree(assoc_data); + return -EINVAL; + } + memcpy(assoc_data->ssid, ssid_elem->data, ssid_elem->datalen); + assoc_data->ssid_len = ssid_elem->datalen; + memcpy(vif_cfg->ssid, assoc_data->ssid, assoc_data->ssid_len); + vif_cfg->ssid_len = assoc_data->ssid_len; + rcu_read_unlock(); + + if (req->ap_mld_addr) { + for (i = 0; i < IEEE80211_MLD_MAX_NUM_LINKS; i++) { + if (!req->links[i].bss) + continue; + link = sdata_dereference(sdata->link[i], sdata); + if (link) + ether_addr_copy(assoc_data->link[i].addr, + link->conf->addr); + else + eth_random_addr(assoc_data->link[i].addr); + } + } else { + memcpy(assoc_data->link[0].addr, sdata->vif.addr, ETH_ALEN); + } + + assoc_data->s1g = cbss->channel->band == NL80211_BAND_S1GHZ; + + memcpy(assoc_data->ap_addr, + req->ap_mld_addr ?: req->bss->bssid, + ETH_ALEN); + + if (ifmgd->associated) { + u8 frame_buf[IEEE80211_DEAUTH_FRAME_LEN]; + + sdata_info(sdata, + "disconnect from AP %pM for new assoc to %pM\n", + sdata->vif.cfg.ap_addr, assoc_data->ap_addr); + ieee80211_set_disassoc(sdata, IEEE80211_STYPE_DEAUTH, + WLAN_REASON_UNSPECIFIED, + false, frame_buf); + + ieee80211_report_disconnect(sdata, frame_buf, + sizeof(frame_buf), true, + WLAN_REASON_UNSPECIFIED, + false); + } + + if (ifmgd->auth_data && !ifmgd->auth_data->done) { + err = -EBUSY; + goto err_free; + } + + if (ifmgd->assoc_data) { + err = -EBUSY; + goto err_free; + } + + if (ifmgd->auth_data) { + bool match; + + /* keep sta info, bssid if matching */ + match = ether_addr_equal(ifmgd->auth_data->ap_addr, + assoc_data->ap_addr) && + ifmgd->auth_data->link_id == req->link_id; + ieee80211_destroy_auth_data(sdata, match); + } + + /* prepare assoc data */ + + bss = (void *)cbss->priv; + assoc_data->wmm = bss->wmm_used && + (local->hw.queues >= IEEE80211_NUM_ACS); + + /* + * IEEE802.11n does not allow TKIP/WEP as pairwise ciphers in HT mode. + * We still associate in non-HT mode (11a/b/g) if any one of these + * ciphers is configured as pairwise. + * We can set this to true for non-11n hardware, that'll be checked + * separately along with the peer capabilities. + */ + for (i = 0; i < req->crypto.n_ciphers_pairwise; i++) { + if (req->crypto.ciphers_pairwise[i] == WLAN_CIPHER_SUITE_WEP40 || + req->crypto.ciphers_pairwise[i] == WLAN_CIPHER_SUITE_TKIP || + req->crypto.ciphers_pairwise[i] == WLAN_CIPHER_SUITE_WEP104) { + conn_flags |= IEEE80211_CONN_DISABLE_HT; + conn_flags |= IEEE80211_CONN_DISABLE_VHT; + conn_flags |= IEEE80211_CONN_DISABLE_HE; + conn_flags |= IEEE80211_CONN_DISABLE_EHT; + netdev_info(sdata->dev, + "disabling HT/VHT/HE due to WEP/TKIP use\n"); + } + } + + /* also disable HT/VHT/HE/EHT if the AP doesn't use WMM */ + if (!bss->wmm_used) { + conn_flags |= IEEE80211_CONN_DISABLE_HT; + conn_flags |= IEEE80211_CONN_DISABLE_VHT; + conn_flags |= IEEE80211_CONN_DISABLE_HE; + conn_flags |= IEEE80211_CONN_DISABLE_EHT; + netdev_info(sdata->dev, + "disabling HT/VHT/HE as WMM/QoS is not supported by the AP\n"); + } + + if (req->flags & ASSOC_REQ_DISABLE_HT) { + mlme_dbg(sdata, "HT disabled by flag, disabling HT/VHT/HE\n"); + conn_flags |= IEEE80211_CONN_DISABLE_HT; + conn_flags |= IEEE80211_CONN_DISABLE_VHT; + conn_flags |= IEEE80211_CONN_DISABLE_HE; + conn_flags |= IEEE80211_CONN_DISABLE_EHT; + } + + if (req->flags & ASSOC_REQ_DISABLE_VHT) { + mlme_dbg(sdata, "VHT disabled by flag, disabling VHT\n"); + conn_flags |= IEEE80211_CONN_DISABLE_VHT; + } + + if (req->flags & ASSOC_REQ_DISABLE_HE) { + mlme_dbg(sdata, "HE disabled by flag, disabling HE/EHT\n"); + conn_flags |= IEEE80211_CONN_DISABLE_HE; + conn_flags |= IEEE80211_CONN_DISABLE_EHT; + } + + if (req->flags & ASSOC_REQ_DISABLE_EHT) + conn_flags |= IEEE80211_CONN_DISABLE_EHT; + + memcpy(&ifmgd->ht_capa, &req->ht_capa, sizeof(ifmgd->ht_capa)); + memcpy(&ifmgd->ht_capa_mask, &req->ht_capa_mask, + sizeof(ifmgd->ht_capa_mask)); + + memcpy(&ifmgd->vht_capa, &req->vht_capa, sizeof(ifmgd->vht_capa)); + memcpy(&ifmgd->vht_capa_mask, &req->vht_capa_mask, + sizeof(ifmgd->vht_capa_mask)); + + memcpy(&ifmgd->s1g_capa, &req->s1g_capa, sizeof(ifmgd->s1g_capa)); + memcpy(&ifmgd->s1g_capa_mask, &req->s1g_capa_mask, + sizeof(ifmgd->s1g_capa_mask)); + + if (req->ie && req->ie_len) { + memcpy(assoc_data->ie, req->ie, req->ie_len); + assoc_data->ie_len = req->ie_len; + assoc_data->ie_pos = assoc_data->ie + assoc_data->ie_len; + } else { + assoc_data->ie_pos = assoc_data->ie; + } + + if (req->fils_kek) { + /* should already be checked in cfg80211 - so warn */ + if (WARN_ON(req->fils_kek_len > FILS_MAX_KEK_LEN)) { + err = -EINVAL; + goto err_free; + } + memcpy(assoc_data->fils_kek, req->fils_kek, + req->fils_kek_len); + assoc_data->fils_kek_len = req->fils_kek_len; + } + + if (req->fils_nonces) + memcpy(assoc_data->fils_nonces, req->fils_nonces, + 2 * FILS_NONCE_LEN); + + /* default timeout */ + assoc_data->timeout = jiffies; + assoc_data->timeout_started = true; + + assoc_data->assoc_link_id = assoc_link_id; + + if (req->ap_mld_addr) { + for (i = 0; i < ARRAY_SIZE(assoc_data->link); i++) { + assoc_data->link[i].conn_flags = conn_flags; + assoc_data->link[i].bss = req->links[i].bss; + } + + /* if there was no authentication, set up the link */ + err = ieee80211_vif_set_links(sdata, BIT(assoc_link_id)); + if (err) + goto err_clear; + } else { + assoc_data->link[0].conn_flags = conn_flags; + assoc_data->link[0].bss = cbss; + } + + link = sdata_dereference(sdata->link[assoc_link_id], sdata); + if (WARN_ON(!link)) { + err = -EINVAL; + goto err_clear; + } + + /* keep old conn_flags from ieee80211_prep_channel() from auth */ + conn_flags |= link->u.mgd.conn_flags; + conn_flags |= ieee80211_setup_assoc_link(sdata, assoc_data, req, + conn_flags, assoc_link_id); + override = link->u.mgd.conn_flags != conn_flags; + link->u.mgd.conn_flags |= conn_flags; + + if (WARN((sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_UAPSD) && + ieee80211_hw_check(&local->hw, PS_NULLFUNC_STACK), + "U-APSD not supported with HW_PS_NULLFUNC_STACK\n")) + sdata->vif.driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD; + + if (bss->wmm_used && bss->uapsd_supported && + (sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_UAPSD)) { + assoc_data->uapsd = true; + ifmgd->flags |= IEEE80211_STA_UAPSD_ENABLED; + } else { + assoc_data->uapsd = false; + ifmgd->flags &= ~IEEE80211_STA_UAPSD_ENABLED; + } + + if (req->prev_bssid) + memcpy(assoc_data->prev_ap_addr, req->prev_bssid, ETH_ALEN); + + if (req->use_mfp) { + ifmgd->mfp = IEEE80211_MFP_REQUIRED; + ifmgd->flags |= IEEE80211_STA_MFP_ENABLED; + } else { + ifmgd->mfp = IEEE80211_MFP_DISABLED; + ifmgd->flags &= ~IEEE80211_STA_MFP_ENABLED; + } + + if (req->flags & ASSOC_REQ_USE_RRM) + ifmgd->flags |= IEEE80211_STA_ENABLE_RRM; + else + ifmgd->flags &= ~IEEE80211_STA_ENABLE_RRM; + + if (req->crypto.control_port) + ifmgd->flags |= IEEE80211_STA_CONTROL_PORT; + else + ifmgd->flags &= ~IEEE80211_STA_CONTROL_PORT; + + sdata->control_port_protocol = req->crypto.control_port_ethertype; + sdata->control_port_no_encrypt = req->crypto.control_port_no_encrypt; + sdata->control_port_over_nl80211 = + req->crypto.control_port_over_nl80211; + sdata->control_port_no_preauth = req->crypto.control_port_no_preauth; + + /* kick off associate process */ + ifmgd->assoc_data = assoc_data; + + for (i = 0; i < ARRAY_SIZE(assoc_data->link); i++) { + if (!assoc_data->link[i].bss) + continue; + if (i == assoc_data->assoc_link_id) + continue; + /* only calculate the flags, hence link == NULL */ + err = ieee80211_prep_channel(sdata, NULL, assoc_data->link[i].bss, + &assoc_data->link[i].conn_flags); + if (err) + goto err_clear; + } + + /* needed for transmitting the assoc frames properly */ + memcpy(sdata->vif.cfg.ap_addr, assoc_data->ap_addr, ETH_ALEN); + + err = ieee80211_prep_connection(sdata, cbss, req->link_id, + req->ap_mld_addr, true, override); + if (err) + goto err_clear; + + assoc_data->link[assoc_data->assoc_link_id].conn_flags = + link->u.mgd.conn_flags; + + if (ieee80211_hw_check(&sdata->local->hw, NEED_DTIM_BEFORE_ASSOC)) { + const struct cfg80211_bss_ies *beacon_ies; + + rcu_read_lock(); + beacon_ies = rcu_dereference(req->bss->beacon_ies); + + if (beacon_ies) { + /* + * Wait up to one beacon interval ... + * should this be more if we miss one? + */ + sdata_info(sdata, "waiting for beacon from %pM\n", + link->u.mgd.bssid); + assoc_data->timeout = TU_TO_EXP_TIME(req->bss->beacon_interval); + assoc_data->timeout_started = true; + assoc_data->need_beacon = true; + } + rcu_read_unlock(); + } + + run_again(sdata, assoc_data->timeout); + + return 0; + err_clear: + eth_zero_addr(sdata->deflink.u.mgd.bssid); + ieee80211_link_info_change_notify(sdata, &sdata->deflink, + BSS_CHANGED_BSSID); + ifmgd->assoc_data = NULL; + err_free: + kfree(assoc_data); + return err; +} + +int ieee80211_mgd_deauth(struct ieee80211_sub_if_data *sdata, + struct cfg80211_deauth_request *req) +{ + struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; + u8 frame_buf[IEEE80211_DEAUTH_FRAME_LEN]; + bool tx = !req->local_state_change; + struct ieee80211_prep_tx_info info = { + .subtype = IEEE80211_STYPE_DEAUTH, + }; + + if (ifmgd->auth_data && + ether_addr_equal(ifmgd->auth_data->ap_addr, req->bssid)) { + sdata_info(sdata, + "aborting authentication with %pM by local choice (Reason: %u=%s)\n", + req->bssid, req->reason_code, + ieee80211_get_reason_code_string(req->reason_code)); + + drv_mgd_prepare_tx(sdata->local, sdata, &info); + ieee80211_send_deauth_disassoc(sdata, req->bssid, req->bssid, + IEEE80211_STYPE_DEAUTH, + req->reason_code, tx, + frame_buf); + ieee80211_destroy_auth_data(sdata, false); + ieee80211_report_disconnect(sdata, frame_buf, + sizeof(frame_buf), true, + req->reason_code, false); + drv_mgd_complete_tx(sdata->local, sdata, &info); + return 0; + } + + if (ifmgd->assoc_data && + ether_addr_equal(ifmgd->assoc_data->ap_addr, req->bssid)) { + sdata_info(sdata, + "aborting association with %pM by local choice (Reason: %u=%s)\n", + req->bssid, req->reason_code, + ieee80211_get_reason_code_string(req->reason_code)); + + drv_mgd_prepare_tx(sdata->local, sdata, &info); + ieee80211_send_deauth_disassoc(sdata, req->bssid, req->bssid, + IEEE80211_STYPE_DEAUTH, + req->reason_code, tx, + frame_buf); + ieee80211_destroy_assoc_data(sdata, ASSOC_ABANDON); + ieee80211_report_disconnect(sdata, frame_buf, + sizeof(frame_buf), true, + req->reason_code, false); + return 0; + } + + if (ifmgd->associated && + ether_addr_equal(sdata->vif.cfg.ap_addr, req->bssid)) { + sdata_info(sdata, + "deauthenticating from %pM by local choice (Reason: %u=%s)\n", + req->bssid, req->reason_code, + ieee80211_get_reason_code_string(req->reason_code)); + + ieee80211_set_disassoc(sdata, IEEE80211_STYPE_DEAUTH, + req->reason_code, tx, frame_buf); + ieee80211_report_disconnect(sdata, frame_buf, + sizeof(frame_buf), true, + req->reason_code, false); + drv_mgd_complete_tx(sdata->local, sdata, &info); + return 0; + } + + return -ENOTCONN; +} + +int ieee80211_mgd_disassoc(struct ieee80211_sub_if_data *sdata, + struct cfg80211_disassoc_request *req) +{ + u8 frame_buf[IEEE80211_DEAUTH_FRAME_LEN]; + + if (!sdata->u.mgd.associated || + memcmp(sdata->vif.cfg.ap_addr, req->ap_addr, ETH_ALEN)) + return -ENOTCONN; + + sdata_info(sdata, + "disassociating from %pM by local choice (Reason: %u=%s)\n", + req->ap_addr, req->reason_code, + ieee80211_get_reason_code_string(req->reason_code)); + + ieee80211_set_disassoc(sdata, IEEE80211_STYPE_DISASSOC, + req->reason_code, !req->local_state_change, + frame_buf); + + ieee80211_report_disconnect(sdata, frame_buf, sizeof(frame_buf), true, + req->reason_code, false); + + return 0; +} + +void ieee80211_mgd_stop_link(struct ieee80211_link_data *link) +{ + cancel_work_sync(&link->u.mgd.request_smps_work); + cancel_work_sync(&link->u.mgd.chswitch_work); +} + +void ieee80211_mgd_stop(struct ieee80211_sub_if_data *sdata) +{ + struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; + + /* + * Make sure some work items will not run after this, + * they will not do anything but might not have been + * cancelled when disconnecting. + */ + cancel_work_sync(&ifmgd->monitor_work); + cancel_work_sync(&ifmgd->beacon_connection_loss_work); + cancel_work_sync(&ifmgd->csa_connection_drop_work); + cancel_delayed_work_sync(&ifmgd->tdls_peer_del_work); + + sdata_lock(sdata); + if (ifmgd->assoc_data) + ieee80211_destroy_assoc_data(sdata, ASSOC_TIMEOUT); + if (ifmgd->auth_data) + ieee80211_destroy_auth_data(sdata, false); + spin_lock_bh(&ifmgd->teardown_lock); + if (ifmgd->teardown_skb) { + kfree_skb(ifmgd->teardown_skb); + ifmgd->teardown_skb = NULL; + ifmgd->orig_teardown_skb = NULL; + } + kfree(ifmgd->assoc_req_ies); + ifmgd->assoc_req_ies = NULL; + ifmgd->assoc_req_ies_len = 0; + spin_unlock_bh(&ifmgd->teardown_lock); + del_timer_sync(&ifmgd->timer); + sdata_unlock(sdata); +} + +void ieee80211_cqm_rssi_notify(struct ieee80211_vif *vif, + enum nl80211_cqm_rssi_threshold_event rssi_event, + s32 rssi_level, + gfp_t gfp) +{ + struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); + + trace_api_cqm_rssi_notify(sdata, rssi_event, rssi_level); + + cfg80211_cqm_rssi_notify(sdata->dev, rssi_event, rssi_level, gfp); +} +EXPORT_SYMBOL(ieee80211_cqm_rssi_notify); + +void ieee80211_cqm_beacon_loss_notify(struct ieee80211_vif *vif, gfp_t gfp) +{ + struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); + + trace_api_cqm_beacon_loss_notify(sdata->local, sdata); + + cfg80211_cqm_beacon_loss_notify(sdata->dev, gfp); +} +EXPORT_SYMBOL(ieee80211_cqm_beacon_loss_notify); + +static void _ieee80211_enable_rssi_reports(struct ieee80211_sub_if_data *sdata, + int rssi_min_thold, + int rssi_max_thold) +{ + trace_api_enable_rssi_reports(sdata, rssi_min_thold, rssi_max_thold); + + if (WARN_ON(sdata->vif.type != NL80211_IFTYPE_STATION)) + return; + + /* + * Scale up threshold values before storing it, as the RSSI averaging + * algorithm uses a scaled up value as well. Change this scaling + * factor if the RSSI averaging algorithm changes. + */ + sdata->u.mgd.rssi_min_thold = rssi_min_thold*16; + sdata->u.mgd.rssi_max_thold = rssi_max_thold*16; +} + +void ieee80211_enable_rssi_reports(struct ieee80211_vif *vif, + int rssi_min_thold, + int rssi_max_thold) +{ + struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); + + WARN_ON(rssi_min_thold == rssi_max_thold || + rssi_min_thold > rssi_max_thold); + + _ieee80211_enable_rssi_reports(sdata, rssi_min_thold, + rssi_max_thold); +} +EXPORT_SYMBOL(ieee80211_enable_rssi_reports); + +void ieee80211_disable_rssi_reports(struct ieee80211_vif *vif) +{ + struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); + + _ieee80211_enable_rssi_reports(sdata, 0, 0); +} +EXPORT_SYMBOL(ieee80211_disable_rssi_reports); diff --git a/static-analysis/test_inputs/mlme.lexed.staff.c b/static-analysis/test_inputs/mlme.lexed.staff.c new file mode 100644 index 0000000..a187e53 --- /dev/null +++ b/static-analysis/test_inputs/mlme.lexed.staff.c @@ -0,0 +1,7632 @@ + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +static int max_nullfunc_tries = 2 ; +module_param ( max_nullfunc_tries , int , 0644 ) ; +module_parm_desc ( max_nullfunc_tries , +"maximum nullfunc tx tries before disconnecting (reason 4)." ) ; + +static int max_probe_tries = 5 ; +module_param ( max_probe_tries , int , 0644 ) ; +module_parm_desc ( max_probe_tries , +"maximum probe tries before disconnecting (reason 4)." ) ; + + + + + + + + + +static int beacon_loss_count = 7 ; +module_param ( beacon_loss_count , int , 0644 ) ; +module_parm_desc ( beacon_loss_count , +"number of beacon intervals before we decide beacon was lost." ) ; + + + + + + + + + + + +static int probe_wait_ms = 500 ; +module_param ( probe_wait_ms , int , 0644 ) ; +module_parm_desc ( probe_wait_ms , +"maximum time(ms) to wait for probe response" +" before disconnecting (reason 4)." ) ; + + + + + + + + + + + + +static u16 +ieee80211_extract_dis_subch_bmap ( const struct ieee80211_eht_operation * eht_oper , +struct cfg80211_chan_def * chandef , u16 bitmap ) +{ +struct ieee80211_eht_operation_info * info = ( void * ) eht_oper -> optional ; +struct cfg80211_chan_def ap_chandef = * chandef ; +u32 ap_center_freq , local_center_freq ; +u32 ap_bw , local_bw ; +int ap_start_freq , local_start_freq ; +u16 shift , mask ; + +if ( ! ( eht_oper -> params & ieee80211_eht_oper_info_present ) || +! ( eht_oper -> params & +ieee80211_eht_oper_disabled_subchannel_bitmap_present ) ) +return 0 ; + + +ieee80211_chandef_eht_oper ( eht_oper , true , true , & ap_chandef ) ; +ap_center_freq = ap_chandef . center_freq1 ; +ap_bw = 20 * bit ( u8_get_bits ( info -> control , +ieee80211_eht_oper_chan_width ) ) ; +ap_start_freq = ap_center_freq - ap_bw / 2 ; +local_center_freq = chandef -> center_freq1 ; +local_bw = 20 * bit ( ieee80211_chan_width_to_rx_bw ( chandef -> width ) ) ; +local_start_freq = local_center_freq - local_bw / 2 ; +shift = ( local_start_freq - ap_start_freq ) / 20 ; +mask = bit ( local_bw / 20 ) - 1 ; + +return ( bitmap >> shift ) & mask ; +} + + + + + +static void +ieee80211_handle_puncturing_bitmap ( struct ieee80211_link_data * link , +const struct ieee80211_eht_operation * eht_oper , +u16 bitmap , u64 * changed ) +{ +struct cfg80211_chan_def * chandef = & link -> conf -> chandef ; +u16 extracted ; +u64 _changed = 0 ; + +if ( ! changed ) +changed = & _changed ; + +while ( chandef -> width > nl80211_chan_width_40 ) { +extracted = +ieee80211_extract_dis_subch_bmap ( eht_oper , chandef , +bitmap ) ; + +if ( cfg80211_valid_disable_subchannel_bitmap ( & bitmap , +chandef ) ) +break ; +link -> u . mgd . conn_flags |= +ieee80211_chandef_downgrade ( chandef ) ; +* changed |= bss_changed_bandwidth ; +} + +if ( chandef -> width <= nl80211_chan_width_40 ) +extracted = 0 ; + +if ( link -> conf -> eht_puncturing != extracted ) { +link -> conf -> eht_puncturing = extracted ; +* changed |= bss_changed_eht_puncturing ; +} +} + + + + + + + + + + + +static void run_again ( struct ieee80211_sub_if_data * sdata , +unsigned long timeout ) +{ +sdata_assert_lock ( sdata ) ; + +if ( ! timer_pending ( & sdata -> u . mgd . timer ) || +time_before ( timeout , sdata -> u . mgd . timer . expires ) ) +mod_timer ( & sdata -> u . mgd . timer , timeout ) ; +} + +void ieee80211_sta_reset_beacon_monitor ( struct ieee80211_sub_if_data * sdata ) +{ +if ( sdata -> vif . driver_flags & ieee80211_vif_beacon_filter ) +return ; + +if ( ieee80211_hw_check ( & sdata -> local -> hw , connection_monitor ) ) +return ; + +mod_timer ( & sdata -> u . mgd . bcn_mon_timer , +round_jiffies_up ( jiffies + sdata -> u . mgd . beacon_timeout ) ) ; +} + +void ieee80211_sta_reset_conn_monitor ( struct ieee80211_sub_if_data * sdata ) +{ +struct ieee80211_if_managed * ifmgd = & sdata -> u . mgd ; + +if ( unlikely ( ! ifmgd -> associated ) ) +return ; + +if ( ifmgd -> probe_send_count ) +ifmgd -> probe_send_count = 0 ; + +if ( ieee80211_hw_check ( & sdata -> local -> hw , connection_monitor ) ) +return ; + +mod_timer ( & ifmgd -> conn_mon_timer , +round_jiffies_up ( jiffies + ieee80211_connection_idle_time ) ) ; +} + +static int ecw2cw ( int ecw ) +{ +return ( 1 << ecw ) - 1 ; +} + +static ieee80211_conn_flags_t +ieee80211_determine_chantype ( struct ieee80211_sub_if_data * sdata , +struct ieee80211_link_data * link , +ieee80211_conn_flags_t conn_flags , +struct ieee80211_supported_band * sband , +struct ieee80211_channel * channel , +u32 vht_cap_info , +const struct ieee80211_ht_operation * ht_oper , +const struct ieee80211_vht_operation * vht_oper , +const struct ieee80211_he_operation * he_oper , +const struct ieee80211_eht_operation * eht_oper , +const struct ieee80211_s1g_oper_ie * s1g_oper , +struct cfg80211_chan_def * chandef , bool tracking ) +{ +struct cfg80211_chan_def vht_chandef ; +struct ieee80211_sta_ht_cap sta_ht_cap ; +ieee80211_conn_flags_t ret ; +u32 ht_cfreq ; + +memset ( chandef , 0 , sizeof ( struct cfg80211_chan_def ) ) ; +chandef -> chan = channel ; +chandef -> width = nl80211_chan_width_20_noht ; +chandef -> center_freq1 = channel -> center_freq ; +chandef -> freq1_offset = channel -> freq_offset ; + +if ( channel -> band == nl80211_band_6ghz ) { +if ( ! ieee80211_chandef_he_6ghz_oper ( sdata , he_oper , eht_oper , +chandef ) ) { +mlme_dbg ( sdata , +"bad 6 ghz operation, disabling ht/vht/he/eht\n" ) ; +ret = ieee80211_conn_disable_ht | +ieee80211_conn_disable_vht | +ieee80211_conn_disable_he | +ieee80211_conn_disable_eht ; +} else { +ret = 0 ; +} +vht_chandef = * chandef ; +goto out ; +} else if ( sband -> band == nl80211_band_s1ghz ) { +if ( ! ieee80211_chandef_s1g_oper ( s1g_oper , chandef ) ) { +sdata_info ( sdata , +"missing s1g operation element? trying operating == primary\n" ) ; +chandef -> width = ieee80211_s1g_channel_width ( channel ) ; +} + +ret = ieee80211_conn_disable_ht | ieee80211_conn_disable_40mhz | +ieee80211_conn_disable_vht | +ieee80211_conn_disable_80p80mhz | +ieee80211_conn_disable_160mhz ; +goto out ; +} + +memcpy ( & sta_ht_cap , & sband -> ht_cap , sizeof ( sta_ht_cap ) ) ; +ieee80211_apply_htcap_overrides ( sdata , & sta_ht_cap ) ; + +if ( ! ht_oper || ! sta_ht_cap . ht_supported ) { +mlme_dbg ( sdata , "ht operation missing / ht not supported\n" ) ; +ret = ieee80211_conn_disable_ht | +ieee80211_conn_disable_vht | +ieee80211_conn_disable_he | +ieee80211_conn_disable_eht ; +goto out ; +} + +chandef -> width = nl80211_chan_width_20 ; + +ht_cfreq = ieee80211_channel_to_frequency ( ht_oper -> primary_chan , +channel -> band ) ; + +if ( ! tracking && channel -> center_freq != ht_cfreq ) { + + + + + + + +sdata_info ( sdata , +"wrong control channel: center-freq: %d ht-cfreq: %d ht->primary_chan: %d band: %d - disabling ht\n" , +channel -> center_freq , ht_cfreq , +ht_oper -> primary_chan , channel -> band ) ; +ret = ieee80211_conn_disable_ht | +ieee80211_conn_disable_vht | +ieee80211_conn_disable_he | +ieee80211_conn_disable_eht ; +goto out ; +} + + +if ( sta_ht_cap . cap & ieee80211_ht_cap_sup_width_20_40 ) { +ieee80211_chandef_ht_oper ( ht_oper , chandef ) ; +} else { +mlme_dbg ( sdata , "40 mhz not supported\n" ) ; + +ret = ieee80211_conn_disable_vht ; + +ret |= ieee80211_conn_disable_40mhz ; +goto out ; +} + +if ( ! vht_oper || ! sband -> vht_cap . vht_supported ) { +mlme_dbg ( sdata , "vht operation missing / vht not supported\n" ) ; +ret = ieee80211_conn_disable_vht ; +goto out ; +} + +vht_chandef = * chandef ; +if ( ! ( conn_flags & ieee80211_conn_disable_he ) && +he_oper && +( le32_to_cpu ( he_oper -> he_oper_params ) & +ieee80211_he_operation_vht_oper_info ) ) { +struct ieee80211_vht_operation he_oper_vht_cap ; + + + + + +memcpy ( & he_oper_vht_cap , he_oper -> optional , 3 ) ; +he_oper_vht_cap . basic_mcs_set = cpu_to_le16 ( 0 ) ; + +if ( ! ieee80211_chandef_vht_oper ( & sdata -> local -> hw , vht_cap_info , +& he_oper_vht_cap , ht_oper , +& vht_chandef ) ) { +if ( ! ( conn_flags & ieee80211_conn_disable_he ) ) +sdata_info ( sdata , +"he ap vht information is invalid, disabling he\n" ) ; +ret = ieee80211_conn_disable_he | ieee80211_conn_disable_eht ; +goto out ; +} +} else if ( ! ieee80211_chandef_vht_oper ( & sdata -> local -> hw , +vht_cap_info , +vht_oper , ht_oper , +& vht_chandef ) ) { +if ( ! ( conn_flags & ieee80211_conn_disable_vht ) ) +sdata_info ( sdata , +"ap vht information is invalid, disabling vht\n" ) ; +ret = ieee80211_conn_disable_vht ; +goto out ; +} + +if ( ! cfg80211_chandef_valid ( & vht_chandef ) ) { +if ( ! ( conn_flags & ieee80211_conn_disable_vht ) ) +sdata_info ( sdata , +"ap vht information is invalid, disabling vht\n" ) ; +ret = ieee80211_conn_disable_vht ; +goto out ; +} + +if ( cfg80211_chandef_identical ( chandef , & vht_chandef ) ) { +ret = 0 ; +goto out ; +} + +if ( ! cfg80211_chandef_compatible ( chandef , & vht_chandef ) ) { +if ( ! ( conn_flags & ieee80211_conn_disable_vht ) ) +sdata_info ( sdata , +"ap vht information doesn't match ht, disabling vht\n" ) ; +ret = ieee80211_conn_disable_vht ; +goto out ; +} + +* chandef = vht_chandef ; + + + + + + +if ( eht_oper && ( eht_oper -> params & ieee80211_eht_oper_info_present ) ) { +struct cfg80211_chan_def eht_chandef = * chandef ; + +ieee80211_chandef_eht_oper ( eht_oper , +eht_chandef . width == +nl80211_chan_width_160 , +false , & eht_chandef ) ; + +if ( ! cfg80211_chandef_valid ( & eht_chandef ) ) { +if ( ! ( conn_flags & ieee80211_conn_disable_eht ) ) +sdata_info ( sdata , +"ap eht information is invalid, disabling eht\n" ) ; +ret = ieee80211_conn_disable_eht ; +goto out ; +} + +if ( ! cfg80211_chandef_compatible ( chandef , & eht_chandef ) ) { +if ( ! ( conn_flags & ieee80211_conn_disable_eht ) ) +sdata_info ( sdata , +"ap eht information is incompatible, disabling eht\n" ) ; +ret = ieee80211_conn_disable_eht ; +goto out ; +} + +* chandef = eht_chandef ; +} + +ret = 0 ; + +out : + + + + + + + + + + + + + + + + + + +if ( tracking && +cfg80211_chandef_identical ( chandef , & link -> conf -> chandef ) ) +return ret ; + + +if ( ret & ieee80211_conn_disable_vht ) +vht_chandef = * chandef ; + + + + + + + + + +while ( ! cfg80211_chandef_usable ( sdata -> local -> hw . wiphy , chandef , +tracking ? 0 : +ieee80211_chan_disabled ) ) { +if ( warn_on ( chandef -> width == nl80211_chan_width_20_noht ) ) { +ret = ieee80211_conn_disable_ht | +ieee80211_conn_disable_vht | +ieee80211_conn_disable_he | +ieee80211_conn_disable_eht ; +break ; +} + +ret |= ieee80211_chandef_downgrade ( chandef ) ; +} + +if ( ! he_oper || ! cfg80211_chandef_usable ( sdata -> wdev . wiphy , chandef , +ieee80211_chan_no_he ) ) +ret |= ieee80211_conn_disable_he | ieee80211_conn_disable_eht ; + +if ( ! eht_oper || ! cfg80211_chandef_usable ( sdata -> wdev . wiphy , chandef , +ieee80211_chan_no_eht ) ) +ret |= ieee80211_conn_disable_eht ; + +if ( chandef -> width != vht_chandef . width && ! tracking ) +sdata_info ( sdata , +"capabilities/regulatory prevented using ap ht/vht configuration, downgraded\n" ) ; + +warn_on_once ( ! cfg80211_chandef_valid ( chandef ) ) ; +return ret ; +} + +static int ieee80211_config_bw ( struct ieee80211_link_data * link , +const struct ieee80211_ht_cap * ht_cap , +const struct ieee80211_vht_cap * vht_cap , +const struct ieee80211_ht_operation * ht_oper , +const struct ieee80211_vht_operation * vht_oper , +const struct ieee80211_he_operation * he_oper , +const struct ieee80211_eht_operation * eht_oper , +const struct ieee80211_s1g_oper_ie * s1g_oper , +const u8 * bssid , u64 * changed ) +{ +struct ieee80211_sub_if_data * sdata = link -> sdata ; +struct ieee80211_local * local = sdata -> local ; +struct ieee80211_if_managed * ifmgd = & sdata -> u . mgd ; +struct ieee80211_channel * chan = link -> conf -> chandef . chan ; +struct ieee80211_supported_band * sband = +local -> hw . wiphy -> bands [ chan -> band ] ; +struct cfg80211_chan_def chandef ; +u16 ht_opmode ; +ieee80211_conn_flags_t flags ; +u32 vht_cap_info = 0 ; +int ret ; + + +if ( link -> u . mgd . conn_flags & ieee80211_conn_disable_ht || ! ht_oper ) +return 0 ; + + +if ( link -> u . mgd . conn_flags & ieee80211_conn_disable_vht ) +vht_oper = null ; + + +if ( link -> u . mgd . conn_flags & ieee80211_conn_disable_he || +! ieee80211_get_he_iftype_cap ( sband , +ieee80211_vif_type_p2p ( & sdata -> vif ) ) ) { +he_oper = null ; +eht_oper = null ; +} + + +if ( link -> u . mgd . conn_flags & ieee80211_conn_disable_eht || +! ieee80211_get_eht_iftype_cap ( sband , +ieee80211_vif_type_p2p ( & sdata -> vif ) ) ) +eht_oper = null ; + + + + + +ht_opmode = le16_to_cpu ( ht_oper -> operation_mode ) ; +if ( link -> conf -> ht_operation_mode != ht_opmode ) { +* changed |= bss_changed_ht ; +link -> conf -> ht_operation_mode = ht_opmode ; +} + +if ( vht_cap ) +vht_cap_info = le32_to_cpu ( vht_cap -> vht_cap_info ) ; + + +flags = ieee80211_determine_chantype ( sdata , link , +link -> u . mgd . conn_flags , +sband , chan , vht_cap_info , +ht_oper , vht_oper , +he_oper , eht_oper , +s1g_oper , & chandef , true ) ; + + + + + + + + +if ( link -> u . mgd . conn_flags & ieee80211_conn_disable_80p80mhz && +chandef . width == nl80211_chan_width_80p80 ) +flags |= ieee80211_chandef_downgrade ( & chandef ) ; +if ( link -> u . mgd . conn_flags & ieee80211_conn_disable_160mhz && +chandef . width == nl80211_chan_width_160 ) +flags |= ieee80211_chandef_downgrade ( & chandef ) ; +if ( link -> u . mgd . conn_flags & ieee80211_conn_disable_40mhz && +chandef . width > nl80211_chan_width_20 ) +flags |= ieee80211_chandef_downgrade ( & chandef ) ; + +if ( cfg80211_chandef_identical ( & chandef , & link -> conf -> chandef ) ) +return 0 ; + +link_info ( link , +"ap %pm changed bandwidth, new config is %d.%03d mhz, width %d (%d.%03d/%d mhz)\n" , +link -> u . mgd . bssid , chandef . chan -> center_freq , +chandef . chan -> freq_offset , chandef . width , +chandef . center_freq1 , chandef . freq1_offset , +chandef . center_freq2 ) ; + +if ( flags != ( link -> u . mgd . conn_flags & +( ieee80211_conn_disable_ht | +ieee80211_conn_disable_vht | +ieee80211_conn_disable_he | +ieee80211_conn_disable_eht | +ieee80211_conn_disable_40mhz | +ieee80211_conn_disable_80p80mhz | +ieee80211_conn_disable_160mhz | +ieee80211_conn_disable_320mhz ) ) || +! cfg80211_chandef_valid ( & chandef ) ) { +sdata_info ( sdata , +"ap %pm changed caps/bw in a way we can't support (0x%x/0x%x) - disconnect\n" , +link -> u . mgd . bssid , flags , ifmgd -> flags ) ; +return - einval ; +} + +ret = ieee80211_link_change_bandwidth ( link , & chandef , changed ) ; + +if ( ret ) { +sdata_info ( sdata , +"ap %pm changed bandwidth to incompatible one - disconnect\n" , +link -> u . mgd . bssid ) ; +return ret ; +} + +return 0 ; +} + + + +static void ieee80211_add_ht_ie ( struct ieee80211_sub_if_data * sdata , +struct sk_buff * skb , u8 ap_ht_param , +struct ieee80211_supported_band * sband , +struct ieee80211_channel * channel , +enum ieee80211_smps_mode smps , +ieee80211_conn_flags_t conn_flags ) +{ +u8 * pos ; +u32 flags = channel -> flags ; +u16 cap ; +struct ieee80211_sta_ht_cap ht_cap ; + +build_bug_on ( sizeof ( ht_cap ) != sizeof ( sband -> ht_cap ) ) ; + +memcpy ( & ht_cap , & sband -> ht_cap , sizeof ( ht_cap ) ) ; +ieee80211_apply_htcap_overrides ( sdata , & ht_cap ) ; + + +cap = ht_cap . cap ; + +switch ( ap_ht_param & ieee80211_ht_param_cha_sec_offset ) { +case ieee80211_ht_param_cha_sec_above : +if ( flags & ieee80211_chan_no_ht40plus ) { +cap &= ~ ieee80211_ht_cap_sup_width_20_40 ; +cap &= ~ ieee80211_ht_cap_sgi_40 ; +} +break ; +case ieee80211_ht_param_cha_sec_below : +if ( flags & ieee80211_chan_no_ht40minus ) { +cap &= ~ ieee80211_ht_cap_sup_width_20_40 ; +cap &= ~ ieee80211_ht_cap_sgi_40 ; +} +break ; +} + + + + + + +if ( conn_flags & ieee80211_conn_disable_40mhz ) { +cap &= ~ ieee80211_ht_cap_sup_width_20_40 ; +cap &= ~ ieee80211_ht_cap_sgi_40 ; +} + + +cap &= ~ ieee80211_ht_cap_sm_ps ; +switch ( smps ) { +case ieee80211_smps_automatic : +case ieee80211_smps_num_modes : +warn_on ( 1 ) ; +fallthrough ; +case ieee80211_smps_off : +cap |= wlan_ht_cap_sm_ps_disabled << +ieee80211_ht_cap_sm_ps_shift ; +break ; +case ieee80211_smps_static : +cap |= wlan_ht_cap_sm_ps_static << +ieee80211_ht_cap_sm_ps_shift ; +break ; +case ieee80211_smps_dynamic : +cap |= wlan_ht_cap_sm_ps_dynamic << +ieee80211_ht_cap_sm_ps_shift ; +break ; +} + + +pos = skb_put ( skb , sizeof ( struct ieee80211_ht_cap ) + 2 ) ; +ieee80211_ie_build_ht_cap ( pos , & ht_cap , cap ) ; +} + + + + + +static bool ieee80211_add_vht_ie ( struct ieee80211_sub_if_data * sdata , +struct sk_buff * skb , +struct ieee80211_supported_band * sband , +struct ieee80211_vht_cap * ap_vht_cap , +ieee80211_conn_flags_t conn_flags ) +{ +struct ieee80211_local * local = sdata -> local ; +u8 * pos ; +u32 cap ; +struct ieee80211_sta_vht_cap vht_cap ; +u32 mask , ap_bf_sts , our_bf_sts ; +bool mu_mimo_owner = false ; + +build_bug_on ( sizeof ( vht_cap ) != sizeof ( sband -> vht_cap ) ) ; + +memcpy ( & vht_cap , & sband -> vht_cap , sizeof ( vht_cap ) ) ; +ieee80211_apply_vhtcap_overrides ( sdata , & vht_cap ) ; + + +cap = vht_cap . cap ; + +if ( conn_flags & ieee80211_conn_disable_80p80mhz ) { +u32 bw = cap & ieee80211_vht_cap_supp_chan_width_mask ; + +cap &= ~ ieee80211_vht_cap_supp_chan_width_mask ; +if ( bw == ieee80211_vht_cap_supp_chan_width_160mhz || +bw == ieee80211_vht_cap_supp_chan_width_160_80plus80mhz ) +cap |= ieee80211_vht_cap_supp_chan_width_160mhz ; +} + +if ( conn_flags & ieee80211_conn_disable_160mhz ) { +cap &= ~ ieee80211_vht_cap_short_gi_160 ; +cap &= ~ ieee80211_vht_cap_supp_chan_width_mask ; +} + + + + + +if ( ! ( ap_vht_cap -> vht_cap_info & +cpu_to_le32 ( ieee80211_vht_cap_su_beamformer_capable ) ) ) +cap &= ~ ( ieee80211_vht_cap_su_beamformee_capable | +ieee80211_vht_cap_mu_beamformee_capable ) ; +else if ( ! ( ap_vht_cap -> vht_cap_info & +cpu_to_le32 ( ieee80211_vht_cap_mu_beamformer_capable ) ) ) +cap &= ~ ieee80211_vht_cap_mu_beamformee_capable ; + + + + + + + + +if ( cap & ieee80211_vht_cap_mu_beamformee_capable ) { +bool disable_mu_mimo = false ; +struct ieee80211_sub_if_data * other ; + +list_for_each_entry_rcu ( other , & local -> interfaces , list ) { +if ( other -> vif . bss_conf . mu_mimo_owner ) { +disable_mu_mimo = true ; +break ; +} +} +if ( disable_mu_mimo ) +cap &= ~ ieee80211_vht_cap_mu_beamformee_capable ; +else +mu_mimo_owner = true ; +} + +mask = ieee80211_vht_cap_beamformee_sts_mask ; + +ap_bf_sts = le32_to_cpu ( ap_vht_cap -> vht_cap_info ) & mask ; +our_bf_sts = cap & mask ; + +if ( ap_bf_sts < our_bf_sts ) { +cap &= ~ mask ; +cap |= ap_bf_sts ; +} + + +pos = skb_put ( skb , sizeof ( struct ieee80211_vht_cap ) + 2 ) ; +ieee80211_ie_build_vht_cap ( pos , & vht_cap , cap ) ; + +return mu_mimo_owner ; +} + + + + +static void ieee80211_add_he_ie ( struct ieee80211_sub_if_data * sdata , +struct sk_buff * skb , +struct ieee80211_supported_band * sband , +enum ieee80211_smps_mode smps_mode , +ieee80211_conn_flags_t conn_flags ) +{ +u8 * pos , * pre_he_pos ; +const struct ieee80211_sta_he_cap * he_cap ; +u8 he_cap_size ; + +he_cap = ieee80211_get_he_iftype_cap ( sband , +ieee80211_vif_type_p2p ( & sdata -> vif ) ) ; +if ( warn_on ( ! he_cap ) ) +return ; + + +he_cap_size = +2 + 1 + sizeof ( he_cap -> he_cap_elem ) + +ieee80211_he_mcs_nss_size ( & he_cap -> he_cap_elem ) + +ieee80211_he_ppe_size ( he_cap -> ppe_thres [ 0 ] , +he_cap -> he_cap_elem . phy_cap_info ) ; +pos = skb_put ( skb , he_cap_size ) ; +pre_he_pos = pos ; +pos = ieee80211_ie_build_he_cap ( conn_flags , +pos , he_cap , pos + he_cap_size ) ; + +skb_trim ( skb , skb -> len - ( pre_he_pos + he_cap_size - pos ) ) ; + +ieee80211_ie_build_he_6ghz_cap ( sdata , smps_mode , skb ) ; +} + +static void ieee80211_add_eht_ie ( struct ieee80211_sub_if_data * sdata , +struct sk_buff * skb , +struct ieee80211_supported_band * sband ) +{ +u8 * pos ; +const struct ieee80211_sta_he_cap * he_cap ; +const struct ieee80211_sta_eht_cap * eht_cap ; +u8 eht_cap_size ; + +he_cap = ieee80211_get_he_iftype_cap ( sband , +ieee80211_vif_type_p2p ( & sdata -> vif ) ) ; +eht_cap = ieee80211_get_eht_iftype_cap ( sband , +ieee80211_vif_type_p2p ( & sdata -> vif ) ) ; + + + + + +if ( warn_on ( ! he_cap || ! eht_cap ) ) +return ; + +eht_cap_size = +2 + 1 + sizeof ( eht_cap -> eht_cap_elem ) + +ieee80211_eht_mcs_nss_size ( & he_cap -> he_cap_elem , +& eht_cap -> eht_cap_elem , +false ) + +ieee80211_eht_ppe_size ( eht_cap -> eht_ppe_thres [ 0 ] , +eht_cap -> eht_cap_elem . phy_cap_info ) ; +pos = skb_put ( skb , eht_cap_size ) ; +ieee80211_ie_build_eht_cap ( pos , he_cap , eht_cap , pos + eht_cap_size , +false ) ; +} + +static void ieee80211_assoc_add_rates ( struct sk_buff * skb , +enum nl80211_chan_width width , +struct ieee80211_supported_band * sband , +struct ieee80211_mgd_assoc_data * assoc_data ) +{ +unsigned int shift = ieee80211_chanwidth_get_shift ( width ) ; +unsigned int rates_len , supp_rates_len ; +u32 rates = 0 ; +int i , count ; +u8 * pos ; + +if ( assoc_data -> supp_rates_len ) { + + + + + + +rates_len = ieee80211_parse_bitrates ( width , sband , +assoc_data -> supp_rates , +assoc_data -> supp_rates_len , +& rates ) ; +} else { + + + + + +rates_len = sband -> n_bitrates ; +for ( i = 0 ; i < sband -> n_bitrates ; i ++ ) +rates |= bit ( i ) ; +} + +supp_rates_len = rates_len ; +if ( supp_rates_len > 8 ) +supp_rates_len = 8 ; + +pos = skb_put ( skb , supp_rates_len + 2 ) ; +* pos ++ = wlan_eid_supp_rates ; +* pos ++ = supp_rates_len ; + +count = 0 ; +for ( i = 0 ; i < sband -> n_bitrates ; i ++ ) { +if ( bit ( i ) & rates ) { +int rate = div_round_up ( sband -> bitrates [ i ] . bitrate , +5 * ( 1 << shift ) ) ; +* pos ++ = ( u8 ) rate ; +if ( ++ count == 8 ) +break ; +} +} + +if ( rates_len > count ) { +pos = skb_put ( skb , rates_len - count + 2 ) ; +* pos ++ = wlan_eid_ext_supp_rates ; +* pos ++ = rates_len - count ; + +for ( i ++ ; i < sband -> n_bitrates ; i ++ ) { +if ( bit ( i ) & rates ) { +int rate ; + +rate = div_round_up ( sband -> bitrates [ i ] . bitrate , +5 * ( 1 << shift ) ) ; +* pos ++ = ( u8 ) rate ; +} +} +} +} + +static size_t ieee80211_add_before_ht_elems ( struct sk_buff * skb , +const u8 * elems , +size_t elems_len , +size_t offset ) +{ +size_t noffset ; + +static const u8 before_ht [ ] = { +wlan_eid_ssid , +wlan_eid_supp_rates , +wlan_eid_ext_supp_rates , +wlan_eid_pwr_capability , +wlan_eid_supported_channels , +wlan_eid_rsn , +wlan_eid_qos_capa , +wlan_eid_rrm_enabled_capabilities , +wlan_eid_mobility_domain , +wlan_eid_fast_bss_transition , +wlan_eid_ric_data , +wlan_eid_supported_regulatory_classes , +} ; +static const u8 after_ric [ ] = { +wlan_eid_supported_regulatory_classes , +wlan_eid_ht_capability , +wlan_eid_bss_coex_2040 , + +wlan_eid_ext_capability , +wlan_eid_qos_traffic_capa , +wlan_eid_tim_bcast_req , +wlan_eid_interworking , + +wlan_eid_vht_capability , +wlan_eid_opmode_notif , +} ; + +if ( ! elems_len ) +return offset ; + +noffset = ieee80211_ie_split_ric ( elems , elems_len , +before_ht , +array_size ( before_ht ) , +after_ric , +array_size ( after_ric ) , +offset ) ; +skb_put_data ( skb , elems + offset , noffset - offset ) ; + +return noffset ; +} + +static size_t ieee80211_add_before_vht_elems ( struct sk_buff * skb , +const u8 * elems , +size_t elems_len , +size_t offset ) +{ +static const u8 before_vht [ ] = { + + + + +wlan_eid_bss_coex_2040 , +wlan_eid_ext_capability , +wlan_eid_qos_traffic_capa , +wlan_eid_tim_bcast_req , +wlan_eid_interworking , + +} ; +size_t noffset ; + +if ( ! elems_len ) +return offset ; + + +noffset = ieee80211_ie_split ( elems , elems_len , +before_vht , array_size ( before_vht ) , +offset ) ; +skb_put_data ( skb , elems + offset , noffset - offset ) ; + +return noffset ; +} + +static size_t ieee80211_add_before_he_elems ( struct sk_buff * skb , +const u8 * elems , +size_t elems_len , +size_t offset ) +{ +static const u8 before_he [ ] = { + + + + +wlan_eid_opmode_notif , +wlan_eid_extension , wlan_eid_ext_future_chan_guidance , + +wlan_eid_extension , wlan_eid_ext_fils_session , +wlan_eid_extension , wlan_eid_ext_fils_public_key , +wlan_eid_extension , wlan_eid_ext_fils_key_confirm , +wlan_eid_extension , wlan_eid_ext_fils_hlp_container , +wlan_eid_extension , wlan_eid_ext_fils_ip_addr_assign , + +} ; +size_t noffset ; + +if ( ! elems_len ) +return offset ; + + +noffset = ieee80211_ie_split ( elems , elems_len , +before_he , array_size ( before_he ) , +offset ) ; +skb_put_data ( skb , elems + offset , noffset - offset ) ; + +return noffset ; +} + + + + +static void ieee80211_assoc_add_ml_elem ( struct ieee80211_sub_if_data * sdata , +struct sk_buff * skb , u16 capab , +const struct element * ext_capa , +const u16 * present_elems ) ; + +static size_t ieee80211_assoc_link_elems ( struct ieee80211_sub_if_data * sdata , +struct sk_buff * skb , u16 * capab , +const struct element * ext_capa , +const u8 * extra_elems , +size_t extra_elems_len , +unsigned int link_id , +struct ieee80211_link_data * link , +u16 * present_elems ) +{ +enum nl80211_iftype iftype = ieee80211_vif_type_p2p ( & sdata -> vif ) ; +struct ieee80211_if_managed * ifmgd = & sdata -> u . mgd ; +struct ieee80211_mgd_assoc_data * assoc_data = ifmgd -> assoc_data ; +struct cfg80211_bss * cbss = assoc_data -> link [ link_id ] . bss ; +struct ieee80211_channel * chan = cbss -> channel ; +const struct ieee80211_sband_iftype_data * iftd ; +struct ieee80211_local * local = sdata -> local ; +struct ieee80211_supported_band * sband ; +enum nl80211_chan_width width = nl80211_chan_width_20 ; +struct ieee80211_chanctx_conf * chanctx_conf ; +enum ieee80211_smps_mode smps_mode ; +u16 orig_capab = * capab ; +size_t offset = 0 ; +int present_elems_len = 0 ; +u8 * pos ; +int i ; + + + + + + + + +if ( link ) +smps_mode = link -> smps_mode ; +else if ( sdata -> u . mgd . powersave ) +smps_mode = ieee80211_smps_dynamic ; +else +smps_mode = ieee80211_smps_off ; + +if ( link ) { + + + + + +rcu_read_lock ( ) ; +chanctx_conf = rcu_dereference ( link -> conf -> chanctx_conf ) ; +if ( chanctx_conf ) +width = chanctx_conf -> def . width ; +rcu_read_unlock ( ) ; +} + +sband = local -> hw . wiphy -> bands [ chan -> band ] ; +iftd = ieee80211_get_sband_iftype_data ( sband , iftype ) ; + +if ( sband -> band == nl80211_band_2ghz ) { +* capab |= wlan_capability_short_slot_time ; +* capab |= wlan_capability_short_preamble ; +} + +if ( ( cbss -> capability & wlan_capability_spectrum_mgmt ) && +ieee80211_hw_check ( & local -> hw , spectrum_mgmt ) ) +* capab |= wlan_capability_spectrum_mgmt ; + +if ( sband -> band != nl80211_band_s1ghz ) +ieee80211_assoc_add_rates ( skb , width , sband , assoc_data ) ; + +if ( * capab & wlan_capability_spectrum_mgmt || +* capab & wlan_capability_radio_measure ) { +struct cfg80211_chan_def chandef = { +. width = width , +. chan = chan , +} ; + +pos = skb_put ( skb , 4 ) ; +* pos ++ = wlan_eid_pwr_capability ; +* pos ++ = 2 ; +* pos ++ = 0 ; + +* pos ++ = ieee80211_chandef_max_power ( & chandef ) ; +add_present_elem ( wlan_eid_pwr_capability ) ; +} + + + + + + +if ( * capab & wlan_capability_spectrum_mgmt && +( sband -> band != nl80211_band_6ghz || +! ext_capa || ext_capa -> datalen < 1 || +! ( ext_capa -> data [ 0 ] & wlan_ext_capa1_ext_channel_switching ) ) ) { + +pos = skb_put ( skb , 2 * sband -> n_channels + 2 ) ; +* pos ++ = wlan_eid_supported_channels ; +* pos ++ = 2 * sband -> n_channels ; +for ( i = 0 ; i < sband -> n_channels ; i ++ ) { +int cf = sband -> channels [ i ] . center_freq ; + +* pos ++ = ieee80211_frequency_to_channel ( cf ) ; +* pos ++ = 1 ; +} +add_present_elem ( wlan_eid_supported_channels ) ; +} + + +offset = ieee80211_add_before_ht_elems ( skb , extra_elems , +extra_elems_len , +offset ) ; + +if ( sband -> band != nl80211_band_6ghz && +! ( assoc_data -> link [ link_id ] . conn_flags & ieee80211_conn_disable_ht ) ) { +ieee80211_add_ht_ie ( sdata , skb , +assoc_data -> link [ link_id ] . ap_ht_param , +sband , chan , smps_mode , +assoc_data -> link [ link_id ] . conn_flags ) ; +add_present_elem ( wlan_eid_ht_capability ) ; +} + + +offset = ieee80211_add_before_vht_elems ( skb , extra_elems , +extra_elems_len , +offset ) ; + +if ( sband -> band != nl80211_band_6ghz && +! ( assoc_data -> link [ link_id ] . conn_flags & ieee80211_conn_disable_vht ) ) { +bool mu_mimo_owner = +ieee80211_add_vht_ie ( sdata , skb , sband , +& assoc_data -> link [ link_id ] . ap_vht_cap , +assoc_data -> link [ link_id ] . conn_flags ) ; + +if ( link ) +link -> conf -> mu_mimo_owner = mu_mimo_owner ; +add_present_elem ( wlan_eid_vht_capability ) ; +} + + + + + +if ( assoc_data -> link [ link_id ] . conn_flags & ieee80211_conn_disable_ht || +( sband -> band == nl80211_band_5ghz && +assoc_data -> link [ link_id ] . conn_flags & ieee80211_conn_disable_vht ) ) +assoc_data -> link [ link_id ] . conn_flags |= +ieee80211_conn_disable_he | +ieee80211_conn_disable_eht ; + + +offset = ieee80211_add_before_he_elems ( skb , extra_elems , +extra_elems_len , +offset ) ; + +if ( ! ( assoc_data -> link [ link_id ] . conn_flags & ieee80211_conn_disable_he ) ) { +ieee80211_add_he_ie ( sdata , skb , sband , smps_mode , +assoc_data -> link [ link_id ] . conn_flags ) ; +add_present_ext_elem ( wlan_eid_ext_he_capability ) ; +} + + + + + + +if ( ! ( assoc_data -> link [ link_id ] . conn_flags & ieee80211_conn_disable_eht ) ) +add_present_ext_elem ( wlan_eid_ext_eht_capability ) ; + +if ( link_id == assoc_data -> assoc_link_id ) +ieee80211_assoc_add_ml_elem ( sdata , skb , orig_capab , ext_capa , +present_elems ) ; + + +present_elems = null ; + +if ( ! ( assoc_data -> link [ link_id ] . conn_flags & ieee80211_conn_disable_eht ) ) +ieee80211_add_eht_ie ( sdata , skb , sband ) ; + +if ( sband -> band == nl80211_band_s1ghz ) { +ieee80211_add_aid_request_ie ( sdata , skb ) ; +ieee80211_add_s1g_capab_ie ( sdata , & sband -> s1g_cap , skb ) ; +} + +if ( iftd && iftd -> vendor_elems . data && iftd -> vendor_elems . len ) +skb_put_data ( skb , iftd -> vendor_elems . data , iftd -> vendor_elems . len ) ; + +if ( link ) +link -> u . mgd . conn_flags = assoc_data -> link [ link_id ] . conn_flags ; + +return offset ; +} + +static void ieee80211_add_non_inheritance_elem ( struct sk_buff * skb , +const u16 * outer , +const u16 * inner ) +{ +unsigned int skb_len = skb -> len ; +bool added = false ; +int i , j ; +u8 * len , * list_len = null ; + +skb_put_u8 ( skb , wlan_eid_extension ) ; +len = skb_put ( skb , 1 ) ; +skb_put_u8 ( skb , wlan_eid_ext_non_inheritance ) ; + +for ( i = 0 ; i < present_elems_max && outer [ i ] ; i ++ ) { +u16 elem = outer [ i ] ; +bool have_inner = false ; +bool at_extension = false ; + + +warn_on ( at_extension && elem < present_elem_ext_offs ) ; + + +if ( ! at_extension && elem >= present_elem_ext_offs ) { +at_extension = true ; +if ( ! list_len ) +skb_put_u8 ( skb , 0 ) ; +list_len = null ; +} + +for ( j = 0 ; j < present_elems_max && inner [ j ] ; j ++ ) { +if ( elem == inner [ j ] ) { +have_inner = true ; +break ; +} +} + +if ( have_inner ) +continue ; + +if ( ! list_len ) { +list_len = skb_put ( skb , 1 ) ; +* list_len = 0 ; +} +* list_len += 1 ; +skb_put_u8 ( skb , ( u8 ) elem ) ; +} + +if ( ! added ) +skb_trim ( skb , skb_len ) ; +else +* len = skb -> len - skb_len - 2 ; +} + +static void ieee80211_assoc_add_ml_elem ( struct ieee80211_sub_if_data * sdata , +struct sk_buff * skb , u16 capab , +const struct element * ext_capa , +const u16 * outer_present_elems ) +{ +struct ieee80211_local * local = sdata -> local ; +struct ieee80211_if_managed * ifmgd = & sdata -> u . mgd ; +struct ieee80211_mgd_assoc_data * assoc_data = ifmgd -> assoc_data ; +struct ieee80211_multi_link_elem * ml_elem ; +struct ieee80211_mle_basic_common_info * common ; +const struct wiphy_iftype_ext_capab * ift_ext_capa ; +__le16 eml_capa = 0 , mld_capa_ops = 0 ; +unsigned int link_id ; +u8 * ml_elem_len ; +void * capab_pos ; + +if ( ! sdata -> vif . valid_links ) +return ; + +ift_ext_capa = cfg80211_get_iftype_ext_capa ( local -> hw . wiphy , +ieee80211_vif_type_p2p ( & sdata -> vif ) ) ; +if ( ift_ext_capa ) { +eml_capa = cpu_to_le16 ( ift_ext_capa -> eml_capabilities ) ; +mld_capa_ops = cpu_to_le16 ( ift_ext_capa -> mld_capa_and_ops ) ; +} + +skb_put_u8 ( skb , wlan_eid_extension ) ; +ml_elem_len = skb_put ( skb , 1 ) ; +skb_put_u8 ( skb , wlan_eid_ext_eht_multi_link ) ; +ml_elem = skb_put ( skb , sizeof ( * ml_elem ) ) ; +ml_elem -> control = +cpu_to_le16 ( ieee80211_ml_control_type_basic | +ieee80211_mlc_basic_pres_mld_capa_op ) ; +common = skb_put ( skb , sizeof ( * common ) ) ; +common -> len = sizeof ( * common ) + +2 ; +memcpy ( common -> mld_mac_addr , sdata -> vif . addr , eth_alen ) ; + + +if ( eml_capa & +cpu_to_le16 ( ( ieee80211_eml_cap_emlsr_supp | +ieee80211_eml_cap_emlmr_support ) ) ) { +common -> len += 2 ; +ml_elem -> control |= +cpu_to_le16 ( ieee80211_mlc_basic_pres_eml_capa ) ; +skb_put_data ( skb , & eml_capa , sizeof ( eml_capa ) ) ; +} + +mld_capa_ops &= ~ cpu_to_le16 ( ieee80211_mld_cap_op_tid_to_link_map_neg_supp ) ; +skb_put_data ( skb , & mld_capa_ops , sizeof ( mld_capa_ops ) ) ; + +for ( link_id = 0 ; link_id < ieee80211_mld_max_num_links ; link_id ++ ) { +u16 link_present_elems [ present_elems_max ] = { } ; +const u8 * extra_elems ; +size_t extra_elems_len ; +size_t extra_used ; +u8 * subelem_len = null ; +__le16 ctrl ; + +if ( ! assoc_data -> link [ link_id ] . bss || +link_id == assoc_data -> assoc_link_id ) +continue ; + +extra_elems = assoc_data -> link [ link_id ] . elems ; +extra_elems_len = assoc_data -> link [ link_id ] . elems_len ; + +skb_put_u8 ( skb , ieee80211_mle_subelem_per_sta_profile ) ; +subelem_len = skb_put ( skb , 1 ) ; + +ctrl = cpu_to_le16 ( link_id | +ieee80211_mle_sta_control_complete_profile | +ieee80211_mle_sta_control_sta_mac_addr_present ) ; +skb_put_data ( skb , & ctrl , sizeof ( ctrl ) ) ; +skb_put_u8 ( skb , 1 + eth_alen ) ; +skb_put_data ( skb , assoc_data -> link [ link_id ] . addr , +eth_alen ) ; + + + + + + + + +capab_pos = skb_put ( skb , 2 ) ; + +extra_used = ieee80211_assoc_link_elems ( sdata , skb , & capab , +ext_capa , +extra_elems , +extra_elems_len , +link_id , null , +link_present_elems ) ; +if ( extra_elems ) +skb_put_data ( skb , extra_elems + extra_used , +extra_elems_len - extra_used ) ; + +put_unaligned_le16 ( capab , capab_pos ) ; + +ieee80211_add_non_inheritance_elem ( skb , outer_present_elems , +link_present_elems ) ; + +ieee80211_fragment_element ( skb , subelem_len ) ; +} + +ieee80211_fragment_element ( skb , ml_elem_len ) ; +} + +static int ieee80211_send_assoc ( struct ieee80211_sub_if_data * sdata ) +{ +struct ieee80211_local * local = sdata -> local ; +struct ieee80211_if_managed * ifmgd = & sdata -> u . mgd ; +struct ieee80211_mgd_assoc_data * assoc_data = ifmgd -> assoc_data ; +struct ieee80211_link_data * link ; +struct sk_buff * skb ; +struct ieee80211_mgmt * mgmt ; +u8 * pos , qos_info , * ie_start ; +size_t offset , noffset ; +u16 capab = wlan_capability_ess , link_capab ; +__le16 listen_int ; +struct element * ext_capa = null ; +enum nl80211_iftype iftype = ieee80211_vif_type_p2p ( & sdata -> vif ) ; +struct ieee80211_prep_tx_info info = { } ; +unsigned int link_id , n_links = 0 ; +u16 present_elems [ present_elems_max ] = { } ; +void * capab_pos ; +size_t size ; +int ret ; + + +if ( assoc_data -> ie_len ) +ext_capa = ( void * ) cfg80211_find_elem ( wlan_eid_ext_capability , +assoc_data -> ie , +assoc_data -> ie_len ) ; + +sdata_assert_lock ( sdata ) ; + +size = local -> hw . extra_tx_headroom + +sizeof ( * mgmt ) + +2 + assoc_data -> ssid_len + +assoc_data -> ie_len + +( assoc_data -> fils_kek_len ? 16 : 0 ) + +9 ; + +for ( link_id = 0 ; link_id < ieee80211_mld_max_num_links ; link_id ++ ) { +struct cfg80211_bss * cbss = assoc_data -> link [ link_id ] . bss ; +const struct ieee80211_sband_iftype_data * iftd ; +struct ieee80211_supported_band * sband ; + +if ( ! cbss ) +continue ; + +sband = local -> hw . wiphy -> bands [ cbss -> channel -> band ] ; + +n_links ++ ; + +size += assoc_data -> link [ link_id ] . elems_len ; + +size += 4 + sband -> n_bitrates ; + +size += 2 + 2 * sband -> n_channels ; + +iftd = ieee80211_get_sband_iftype_data ( sband , iftype ) ; +if ( iftd ) +size += iftd -> vendor_elems . len ; + + +size += 4 ; + + +size += 2 + sizeof ( struct ieee80211_ht_cap ) ; +size += 2 + sizeof ( struct ieee80211_vht_cap ) ; +size += 2 + 1 + sizeof ( struct ieee80211_he_cap_elem ) + +sizeof ( struct ieee80211_he_mcs_nss_supp ) + +ieee80211_he_ppe_thres_max_len ; + +if ( sband -> band == nl80211_band_6ghz ) +size += 2 + 1 + sizeof ( struct ieee80211_he_6ghz_capa ) ; + +size += 2 + 1 + sizeof ( struct ieee80211_eht_cap_elem ) + +sizeof ( struct ieee80211_eht_mcs_nss_supp ) + +ieee80211_eht_ppe_thres_max_len ; + + +size += 2 + 2 + present_elems_max ; + + +if ( cbss -> capability & wlan_capability_privacy ) +capab |= wlan_capability_privacy ; +} + +if ( sdata -> vif . valid_links ) { + +size += sizeof ( struct ieee80211_multi_link_elem ) ; + +size += sizeof ( struct ieee80211_mle_basic_common_info ) + +2 + +2 ; + + + + + + +size += ( n_links - 1 ) * +( 1 + 1 + +2 + +1 + eth_alen + 2 ) ; +} + +link = sdata_dereference ( sdata -> link [ assoc_data -> assoc_link_id ] , sdata ) ; +if ( warn_on ( ! link ) ) +return - einval ; + +if ( warn_on ( ! assoc_data -> link [ assoc_data -> assoc_link_id ] . bss ) ) +return - einval ; + +skb = alloc_skb ( size , gfp_kernel ) ; +if ( ! skb ) +return - enomem ; + +skb_reserve ( skb , local -> hw . extra_tx_headroom ) ; + +if ( ifmgd -> flags & ieee80211_sta_enable_rrm ) +capab |= wlan_capability_radio_measure ; + + +if ( ieee80211_hw_check ( & local -> hw , supports_only_he_multi_bssid ) && +! ( link -> u . mgd . conn_flags & ieee80211_conn_disable_he ) && +ext_capa && ext_capa -> datalen >= 3 ) +ext_capa -> data [ 2 ] |= wlan_ext_capa3_multi_bssid_support ; + +mgmt = skb_put_zero ( skb , 24 ) ; +memcpy ( mgmt -> da , sdata -> vif . cfg . ap_addr , eth_alen ) ; +memcpy ( mgmt -> sa , sdata -> vif . addr , eth_alen ) ; +memcpy ( mgmt -> bssid , sdata -> vif . cfg . ap_addr , eth_alen ) ; + +listen_int = cpu_to_le16 ( assoc_data -> s1g ? +ieee80211_encode_usf ( local -> hw . conf . listen_interval ) : +local -> hw . conf . listen_interval ) ; +if ( ! is_zero_ether_addr ( assoc_data -> prev_ap_addr ) ) { +skb_put ( skb , 10 ) ; +mgmt -> frame_control = cpu_to_le16 ( ieee80211_ftype_mgmt | +ieee80211_stype_reassoc_req ) ; +capab_pos = & mgmt -> u . reassoc_req . capab_info ; +mgmt -> u . reassoc_req . listen_interval = listen_int ; +memcpy ( mgmt -> u . reassoc_req . current_ap , +assoc_data -> prev_ap_addr , eth_alen ) ; +info . subtype = ieee80211_stype_reassoc_req ; +} else { +skb_put ( skb , 4 ) ; +mgmt -> frame_control = cpu_to_le16 ( ieee80211_ftype_mgmt | +ieee80211_stype_assoc_req ) ; +capab_pos = & mgmt -> u . assoc_req . capab_info ; +mgmt -> u . assoc_req . listen_interval = listen_int ; +info . subtype = ieee80211_stype_assoc_req ; +} + + +pos = skb_put ( skb , 2 + assoc_data -> ssid_len ) ; +ie_start = pos ; +* pos ++ = wlan_eid_ssid ; +* pos ++ = assoc_data -> ssid_len ; +memcpy ( pos , assoc_data -> ssid , assoc_data -> ssid_len ) ; + + +link_capab = capab ; +offset = ieee80211_assoc_link_elems ( sdata , skb , & link_capab , +ext_capa , +assoc_data -> ie , +assoc_data -> ie_len , +assoc_data -> assoc_link_id , link , +present_elems ) ; +put_unaligned_le16 ( link_capab , capab_pos ) ; + + +if ( assoc_data -> ie_len ) { +noffset = ieee80211_ie_split_vendor ( assoc_data -> ie , +assoc_data -> ie_len , +offset ) ; +skb_put_data ( skb , assoc_data -> ie + offset , noffset - offset ) ; +offset = noffset ; +} + +if ( assoc_data -> wmm ) { +if ( assoc_data -> uapsd ) { +qos_info = ifmgd -> uapsd_queues ; +qos_info |= ( ifmgd -> uapsd_max_sp_len << +ieee80211_wmm_ie_sta_qosinfo_sp_shift ) ; +} else { +qos_info = 0 ; +} + +pos = ieee80211_add_wmm_info_ie ( skb_put ( skb , 9 ) , qos_info ) ; +} + + +if ( assoc_data -> ie_len ) { +noffset = assoc_data -> ie_len ; +skb_put_data ( skb , assoc_data -> ie + offset , noffset - offset ) ; +} + +if ( assoc_data -> fils_kek_len ) { +ret = fils_encrypt_assoc_req ( skb , assoc_data ) ; +if ( ret < 0 ) { +dev_kfree_skb ( skb ) ; +return ret ; +} +} + +pos = skb_tail_pointer ( skb ) ; +kfree ( ifmgd -> assoc_req_ies ) ; +ifmgd -> assoc_req_ies = kmemdup ( ie_start , pos - ie_start , gfp_atomic ) ; +if ( ! ifmgd -> assoc_req_ies ) { +dev_kfree_skb ( skb ) ; +return - enomem ; +} + +ifmgd -> assoc_req_ies_len = pos - ie_start ; + +drv_mgd_prepare_tx ( local , sdata , & info ) ; + +ieee80211_skb_cb ( skb ) -> flags |= ieee80211_tx_intfl_dont_encrypt ; +if ( ieee80211_hw_check ( & local -> hw , reports_tx_ack_status ) ) +ieee80211_skb_cb ( skb ) -> flags |= ieee80211_tx_ctl_req_tx_status | +ieee80211_tx_intfl_mlme_conn_tx ; +ieee80211_tx_skb ( sdata , skb ) ; + +return 0 ; +} + +void ieee80211_send_pspoll ( struct ieee80211_local * local , +struct ieee80211_sub_if_data * sdata ) +{ +struct ieee80211_pspoll * pspoll ; +struct sk_buff * skb ; + +skb = ieee80211_pspoll_get ( & local -> hw , & sdata -> vif ) ; +if ( ! skb ) +return ; + +pspoll = ( struct ieee80211_pspoll * ) skb -> data ; +pspoll -> frame_control |= cpu_to_le16 ( ieee80211_fctl_pm ) ; + +ieee80211_skb_cb ( skb ) -> flags |= ieee80211_tx_intfl_dont_encrypt ; +ieee80211_tx_skb ( sdata , skb ) ; +} + +void ieee80211_send_nullfunc ( struct ieee80211_local * local , +struct ieee80211_sub_if_data * sdata , +bool powersave ) +{ +struct sk_buff * skb ; +struct ieee80211_hdr_3addr * nullfunc ; +struct ieee80211_if_managed * ifmgd = & sdata -> u . mgd ; + +skb = ieee80211_nullfunc_get ( & local -> hw , & sdata -> vif , - 1 , +! ieee80211_hw_check ( & local -> hw , +doesnt_support_qos_ndp ) ) ; +if ( ! skb ) +return ; + +nullfunc = ( struct ieee80211_hdr_3addr * ) skb -> data ; +if ( powersave ) +nullfunc -> frame_control |= cpu_to_le16 ( ieee80211_fctl_pm ) ; + +ieee80211_skb_cb ( skb ) -> flags |= ieee80211_tx_intfl_dont_encrypt | +ieee80211_tx_intfl_offchan_tx_ok ; + +if ( ieee80211_hw_check ( & local -> hw , reports_tx_ack_status ) ) +ieee80211_skb_cb ( skb ) -> flags |= ieee80211_tx_ctl_req_tx_status ; + +if ( ifmgd -> flags & ieee80211_sta_connection_poll ) +ieee80211_skb_cb ( skb ) -> flags |= ieee80211_tx_ctl_use_minrate ; + +ieee80211_tx_skb ( sdata , skb ) ; +} + +void ieee80211_send_4addr_nullfunc ( struct ieee80211_local * local , +struct ieee80211_sub_if_data * sdata ) +{ +struct sk_buff * skb ; +struct ieee80211_hdr * nullfunc ; +__le16 fc ; + +if ( warn_on ( sdata -> vif . type != nl80211_iftype_station ) ) +return ; + +skb = dev_alloc_skb ( local -> hw . extra_tx_headroom + 30 ) ; +if ( ! skb ) +return ; + +skb_reserve ( skb , local -> hw . extra_tx_headroom ) ; + +nullfunc = skb_put_zero ( skb , 30 ) ; +fc = cpu_to_le16 ( ieee80211_ftype_data | ieee80211_stype_nullfunc | +ieee80211_fctl_fromds | ieee80211_fctl_tods ) ; +nullfunc -> frame_control = fc ; +memcpy ( nullfunc -> addr1 , sdata -> deflink . u . mgd . bssid , eth_alen ) ; +memcpy ( nullfunc -> addr2 , sdata -> vif . addr , eth_alen ) ; +memcpy ( nullfunc -> addr3 , sdata -> deflink . u . mgd . bssid , eth_alen ) ; +memcpy ( nullfunc -> addr4 , sdata -> vif . addr , eth_alen ) ; + +ieee80211_skb_cb ( skb ) -> flags |= ieee80211_tx_intfl_dont_encrypt ; +ieee80211_skb_cb ( skb ) -> flags |= ieee80211_tx_ctl_use_minrate ; +ieee80211_tx_skb ( sdata , skb ) ; +} + + +static void ieee80211_chswitch_work ( struct work_struct * work ) +{ +struct ieee80211_link_data * link = +container_of ( work , struct ieee80211_link_data , u . mgd . chswitch_work ) ; +struct ieee80211_sub_if_data * sdata = link -> sdata ; +struct ieee80211_local * local = sdata -> local ; +struct ieee80211_if_managed * ifmgd = & sdata -> u . mgd ; +int ret ; + +if ( ! ieee80211_sdata_running ( sdata ) ) +return ; + +sdata_lock ( sdata ) ; +mutex_lock ( & local -> mtx ) ; +mutex_lock ( & local -> chanctx_mtx ) ; + +if ( ! ifmgd -> associated ) +goto out ; + +if ( ! link -> conf -> csa_active ) +goto out ; + + + + + + + + +if ( link -> reserved_chanctx ) { + + + + + +if ( link -> reserved_ready ) +goto out ; + +ret = ieee80211_link_use_reserved_context ( link ) ; +if ( ret ) { +sdata_info ( sdata , +"failed to use reserved channel context, disconnecting (err=%d)\n" , +ret ) ; +ieee80211_queue_work ( & sdata -> local -> hw , +& ifmgd -> csa_connection_drop_work ) ; +goto out ; +} + +goto out ; +} + +if ( ! cfg80211_chandef_identical ( & link -> conf -> chandef , +& link -> csa_chandef ) ) { +sdata_info ( sdata , +"failed to finalize channel switch, disconnecting\n" ) ; +ieee80211_queue_work ( & sdata -> local -> hw , +& ifmgd -> csa_connection_drop_work ) ; +goto out ; +} + +link -> u . mgd . csa_waiting_bcn = true ; + +ieee80211_sta_reset_beacon_monitor ( sdata ) ; +ieee80211_sta_reset_conn_monitor ( sdata ) ; + +out : +mutex_unlock ( & local -> chanctx_mtx ) ; +mutex_unlock ( & local -> mtx ) ; +sdata_unlock ( sdata ) ; +} + +static void ieee80211_chswitch_post_beacon ( struct ieee80211_link_data * link ) +{ +struct ieee80211_sub_if_data * sdata = link -> sdata ; +struct ieee80211_local * local = sdata -> local ; +struct ieee80211_if_managed * ifmgd = & sdata -> u . mgd ; +int ret ; + +sdata_assert_lock ( sdata ) ; + +warn_on ( ! link -> conf -> csa_active ) ; + +if ( link -> csa_block_tx ) { +ieee80211_wake_vif_queues ( local , sdata , +ieee80211_queue_stop_reason_csa ) ; +link -> csa_block_tx = false ; +} + +link -> conf -> csa_active = false ; +link -> u . mgd . csa_waiting_bcn = false ; + + + + +link -> u . mgd . beacon_crc_valid = false ; + +ret = drv_post_channel_switch ( sdata ) ; +if ( ret ) { +sdata_info ( sdata , +"driver post channel switch failed, disconnecting\n" ) ; +ieee80211_queue_work ( & local -> hw , +& ifmgd -> csa_connection_drop_work ) ; +return ; +} + +cfg80211_ch_switch_notify ( sdata -> dev , & link -> reserved_chandef , 0 , 0 ) ; +} + +void ieee80211_chswitch_done ( struct ieee80211_vif * vif , bool success ) +{ +struct ieee80211_sub_if_data * sdata = vif_to_sdata ( vif ) ; +struct ieee80211_if_managed * ifmgd = & sdata -> u . mgd ; + +if ( warn_on ( sdata -> vif . valid_links ) ) +success = false ; + +trace_api_chswitch_done ( sdata , success ) ; +if ( ! success ) { +sdata_info ( sdata , +"driver channel switch failed, disconnecting\n" ) ; +ieee80211_queue_work ( & sdata -> local -> hw , +& ifmgd -> csa_connection_drop_work ) ; +} else { +ieee80211_queue_work ( & sdata -> local -> hw , +& sdata -> deflink . u . mgd . chswitch_work ) ; +} +} +export_symbol ( ieee80211_chswitch_done ) ; + +static void ieee80211_chswitch_timer ( struct timer_list * t ) +{ +struct ieee80211_link_data * link = +from_timer ( link , t , u . mgd . chswitch_timer ) ; + +ieee80211_queue_work ( & link -> sdata -> local -> hw , +& link -> u . mgd . chswitch_work ) ; +} + +static void +ieee80211_sta_abort_chanswitch ( struct ieee80211_link_data * link ) +{ +struct ieee80211_sub_if_data * sdata = link -> sdata ; +struct ieee80211_local * local = sdata -> local ; + +if ( ! local -> ops -> abort_channel_switch ) +return ; + +mutex_lock ( & local -> mtx ) ; + +mutex_lock ( & local -> chanctx_mtx ) ; +ieee80211_link_unreserve_chanctx ( link ) ; +mutex_unlock ( & local -> chanctx_mtx ) ; + +if ( link -> csa_block_tx ) +ieee80211_wake_vif_queues ( local , sdata , +ieee80211_queue_stop_reason_csa ) ; + +link -> csa_block_tx = false ; +link -> conf -> csa_active = false ; + +mutex_unlock ( & local -> mtx ) ; + +drv_abort_channel_switch ( sdata ) ; +} + +static void +ieee80211_sta_process_chanswitch ( struct ieee80211_link_data * link , +u64 timestamp , u32 device_timestamp , +struct ieee802_11_elems * elems , +bool beacon ) +{ +struct ieee80211_sub_if_data * sdata = link -> sdata ; +struct ieee80211_local * local = sdata -> local ; +struct ieee80211_if_managed * ifmgd = & sdata -> u . mgd ; +struct cfg80211_bss * cbss = link -> u . mgd . bss ; +struct ieee80211_chanctx_conf * conf ; +struct ieee80211_chanctx * chanctx ; +enum nl80211_band current_band ; +struct ieee80211_csa_ie csa_ie ; +struct ieee80211_channel_switch ch_switch ; +struct ieee80211_bss * bss ; +int res ; + +sdata_assert_lock ( sdata ) ; + +if ( ! cbss ) +return ; + +if ( local -> scanning ) +return ; + +current_band = cbss -> channel -> band ; +bss = ( void * ) cbss -> priv ; +res = ieee80211_parse_ch_switch_ie ( sdata , elems , current_band , +bss -> vht_cap_info , +link -> u . mgd . conn_flags , +link -> u . mgd . bssid , & csa_ie ) ; + +if ( ! res ) { +ch_switch . timestamp = timestamp ; +ch_switch . device_timestamp = device_timestamp ; +ch_switch . block_tx = csa_ie . mode ; +ch_switch . chandef = csa_ie . chandef ; +ch_switch . count = csa_ie . count ; +ch_switch . delay = csa_ie . max_switch_time ; +} + +if ( res < 0 ) +goto lock_and_drop_connection ; + +if ( beacon && link -> conf -> csa_active && +! link -> u . mgd . csa_waiting_bcn ) { +if ( res ) +ieee80211_sta_abort_chanswitch ( link ) ; +else +drv_channel_switch_rx_beacon ( sdata , & ch_switch ) ; +return ; +} else if ( link -> conf -> csa_active || res ) { + +return ; +} + +if ( link -> conf -> chandef . chan -> band != +csa_ie . chandef . chan -> band ) { +sdata_info ( sdata , +"ap %pm switches to different band (%d mhz, width:%d, cf1/2: %d/%d mhz), disconnecting\n" , +link -> u . mgd . bssid , +csa_ie . chandef . chan -> center_freq , +csa_ie . chandef . width , csa_ie . chandef . center_freq1 , +csa_ie . chandef . center_freq2 ) ; +goto lock_and_drop_connection ; +} + +if ( ! cfg80211_chandef_usable ( local -> hw . wiphy , & csa_ie . chandef , +ieee80211_chan_disabled ) ) { +sdata_info ( sdata , +"ap %pm switches to unsupported channel " +"(%d.%03d mhz, width:%d, cf1/2: %d.%03d/%d mhz), " +"disconnecting\n" , +link -> u . mgd . bssid , +csa_ie . chandef . chan -> center_freq , +csa_ie . chandef . chan -> freq_offset , +csa_ie . chandef . width , csa_ie . chandef . center_freq1 , +csa_ie . chandef . freq1_offset , +csa_ie . chandef . center_freq2 ) ; +goto lock_and_drop_connection ; +} + +if ( cfg80211_chandef_identical ( & csa_ie . chandef , +& link -> conf -> chandef ) && +( ! csa_ie . mode || ! beacon ) ) { +if ( link -> u . mgd . csa_ignored_same_chan ) +return ; +sdata_info ( sdata , +"ap %pm tries to chanswitch to same channel, ignore\n" , +link -> u . mgd . bssid ) ; +link -> u . mgd . csa_ignored_same_chan = true ; +return ; +} + + + + + + + +ieee80211_teardown_tdls_peers ( sdata ) ; + +mutex_lock ( & local -> mtx ) ; +mutex_lock ( & local -> chanctx_mtx ) ; +conf = rcu_dereference_protected ( link -> conf -> chanctx_conf , +lockdep_is_held ( & local -> chanctx_mtx ) ) ; +if ( ! conf ) { +sdata_info ( sdata , +"no channel context assigned to vif?, disconnecting\n" ) ; +goto drop_connection ; +} + +chanctx = container_of ( conf , struct ieee80211_chanctx , conf ) ; + +if ( local -> use_chanctx && +! ieee80211_hw_check ( & local -> hw , chanctx_sta_csa ) ) { +sdata_info ( sdata , +"driver doesn't support chan-switch with channel contexts\n" ) ; +goto drop_connection ; +} + +if ( drv_pre_channel_switch ( sdata , & ch_switch ) ) { +sdata_info ( sdata , +"preparing for channel switch failed, disconnecting\n" ) ; +goto drop_connection ; +} + +res = ieee80211_link_reserve_chanctx ( link , & csa_ie . chandef , +chanctx -> mode , false ) ; +if ( res ) { +sdata_info ( sdata , +"failed to reserve channel context for channel switch, disconnecting (err=%d)\n" , +res ) ; +goto drop_connection ; +} +mutex_unlock ( & local -> chanctx_mtx ) ; + +link -> conf -> csa_active = true ; +link -> csa_chandef = csa_ie . chandef ; +link -> csa_block_tx = csa_ie . mode ; +link -> u . mgd . csa_ignored_same_chan = false ; +link -> u . mgd . beacon_crc_valid = false ; + +if ( link -> csa_block_tx ) +ieee80211_stop_vif_queues ( local , sdata , +ieee80211_queue_stop_reason_csa ) ; +mutex_unlock ( & local -> mtx ) ; + +cfg80211_ch_switch_started_notify ( sdata -> dev , & csa_ie . chandef , 0 , +csa_ie . count , csa_ie . mode , 0 ) ; + +if ( local -> ops -> channel_switch ) { + +drv_channel_switch ( local , sdata , & ch_switch ) ; +return ; +} + + +if ( csa_ie . count <= 1 ) +ieee80211_queue_work ( & local -> hw , & link -> u . mgd . chswitch_work ) ; +else +mod_timer ( & link -> u . mgd . chswitch_timer , +tu_to_exp_time ( ( csa_ie . count - 1 ) * +cbss -> beacon_interval ) ) ; +return ; +lock_and_drop_connection : +mutex_lock ( & local -> mtx ) ; +mutex_lock ( & local -> chanctx_mtx ) ; +drop_connection : + + + + + + + +link -> conf -> csa_active = true ; +link -> csa_block_tx = csa_ie . mode ; + +ieee80211_queue_work ( & local -> hw , & ifmgd -> csa_connection_drop_work ) ; +mutex_unlock ( & local -> chanctx_mtx ) ; +mutex_unlock ( & local -> mtx ) ; +} + +static bool +ieee80211_find_80211h_pwr_constr ( struct ieee80211_sub_if_data * sdata , +struct ieee80211_channel * channel , +const u8 * country_ie , u8 country_ie_len , +const u8 * pwr_constr_elem , +int * chan_pwr , int * pwr_reduction ) +{ +struct ieee80211_country_ie_triplet * triplet ; +int chan = ieee80211_frequency_to_channel ( channel -> center_freq ) ; +int i , chan_increment ; +bool have_chan_pwr = false ; + + +if ( country_ie_len % 2 || country_ie_len < ieee80211_country_ie_min_len ) +return false ; + +triplet = ( void * ) ( country_ie + 3 ) ; +country_ie_len -= 3 ; + +switch ( channel -> band ) { +default : +warn_on_once ( 1 ) ; +fallthrough ; +case nl80211_band_2ghz : +case nl80211_band_60ghz : +case nl80211_band_lc : +chan_increment = 1 ; +break ; +case nl80211_band_5ghz : +chan_increment = 4 ; +break ; +case nl80211_band_6ghz : + + + + + + + +return false ; +} + + +while ( country_ie_len >= 3 ) { +u8 first_channel = triplet -> chans . first_channel ; + +if ( first_channel >= ieee80211_country_extension_id ) +goto next ; + +for ( i = 0 ; i < triplet -> chans . num_channels ; i ++ ) { +if ( first_channel + i * chan_increment == chan ) { +have_chan_pwr = true ; +* chan_pwr = triplet -> chans . max_power ; +break ; +} +} +if ( have_chan_pwr ) +break ; + +next : +triplet ++ ; +country_ie_len -= 3 ; +} + +if ( have_chan_pwr && pwr_constr_elem ) +* pwr_reduction = * pwr_constr_elem ; +else +* pwr_reduction = 0 ; + +return have_chan_pwr ; +} + +static void ieee80211_find_cisco_dtpc ( struct ieee80211_sub_if_data * sdata , +struct ieee80211_channel * channel , +const u8 * cisco_dtpc_ie , +int * pwr_level ) +{ + + + + + + +* pwr_level = ( __s8 ) cisco_dtpc_ie [ 4 ] ; +} + +static u32 ieee80211_handle_pwr_constr ( struct ieee80211_link_data * link , +struct ieee80211_channel * channel , +struct ieee80211_mgmt * mgmt , +const u8 * country_ie , u8 country_ie_len , +const u8 * pwr_constr_ie , +const u8 * cisco_dtpc_ie ) +{ +struct ieee80211_sub_if_data * sdata = link -> sdata ; +bool has_80211h_pwr = false , has_cisco_pwr = false ; +int chan_pwr = 0 , pwr_reduction_80211h = 0 ; +int pwr_level_cisco , pwr_level_80211h ; +int new_ap_level ; +__le16 capab = mgmt -> u . probe_resp . capab_info ; + +if ( ieee80211_is_s1g_beacon ( mgmt -> frame_control ) ) +return 0 ; + +if ( country_ie && +( capab & cpu_to_le16 ( wlan_capability_spectrum_mgmt ) || +capab & cpu_to_le16 ( wlan_capability_radio_measure ) ) ) { +has_80211h_pwr = ieee80211_find_80211h_pwr_constr ( +sdata , channel , country_ie , country_ie_len , +pwr_constr_ie , & chan_pwr , & pwr_reduction_80211h ) ; +pwr_level_80211h = +max_t ( int , 0 , chan_pwr - pwr_reduction_80211h ) ; +} + +if ( cisco_dtpc_ie ) { +ieee80211_find_cisco_dtpc ( +sdata , channel , cisco_dtpc_ie , & pwr_level_cisco ) ; +has_cisco_pwr = true ; +} + +if ( ! has_80211h_pwr && ! has_cisco_pwr ) +return 0 ; + + + + +if ( has_80211h_pwr && +( ! has_cisco_pwr || pwr_level_80211h <= pwr_level_cisco ) ) { +new_ap_level = pwr_level_80211h ; + +if ( link -> ap_power_level == new_ap_level ) +return 0 ; + +sdata_dbg ( sdata , +"limiting tx power to %d (%d - %d) dbm as advertised by %pm\n" , +pwr_level_80211h , chan_pwr , pwr_reduction_80211h , +link -> u . mgd . bssid ) ; +} else { +new_ap_level = pwr_level_cisco ; + +if ( link -> ap_power_level == new_ap_level ) +return 0 ; + +sdata_dbg ( sdata , +"limiting tx power to %d dbm as advertised by %pm\n" , +pwr_level_cisco , link -> u . mgd . bssid ) ; +} + +link -> ap_power_level = new_ap_level ; +if ( __ieee80211_recalc_txpower ( sdata ) ) +return bss_changed_txpower ; +return 0 ; +} + + +static void ieee80211_enable_ps ( struct ieee80211_local * local , +struct ieee80211_sub_if_data * sdata ) +{ +struct ieee80211_conf * conf = & local -> hw . conf ; + + + + + +if ( local -> scanning ) +return ; + +if ( conf -> dynamic_ps_timeout > 0 && +! ieee80211_hw_check ( & local -> hw , supports_dynamic_ps ) ) { +mod_timer ( & local -> dynamic_ps_timer , jiffies + +msecs_to_jiffies ( conf -> dynamic_ps_timeout ) ) ; +} else { +if ( ieee80211_hw_check ( & local -> hw , ps_nullfunc_stack ) ) +ieee80211_send_nullfunc ( local , sdata , true ) ; + +if ( ieee80211_hw_check ( & local -> hw , ps_nullfunc_stack ) && +ieee80211_hw_check ( & local -> hw , reports_tx_ack_status ) ) +return ; + +conf -> flags |= ieee80211_conf_ps ; +ieee80211_hw_config ( local , ieee80211_conf_change_ps ) ; +} +} + +static void ieee80211_change_ps ( struct ieee80211_local * local ) +{ +struct ieee80211_conf * conf = & local -> hw . conf ; + +if ( local -> ps_sdata ) { +ieee80211_enable_ps ( local , local -> ps_sdata ) ; +} else if ( conf -> flags & ieee80211_conf_ps ) { +conf -> flags &= ~ ieee80211_conf_ps ; +ieee80211_hw_config ( local , ieee80211_conf_change_ps ) ; +del_timer_sync ( & local -> dynamic_ps_timer ) ; +cancel_work_sync ( & local -> dynamic_ps_enable_work ) ; +} +} + +static bool ieee80211_powersave_allowed ( struct ieee80211_sub_if_data * sdata ) +{ +struct ieee80211_local * local = sdata -> local ; +struct ieee80211_if_managed * mgd = & sdata -> u . mgd ; +struct sta_info * sta = null ; +bool authorized = false ; + +if ( ! mgd -> powersave ) +return false ; + +if ( mgd -> broken_ap ) +return false ; + +if ( ! mgd -> associated ) +return false ; + +if ( mgd -> flags & ieee80211_sta_connection_poll ) +return false ; + +if ( ! ( local -> hw . wiphy -> flags & wiphy_flag_supports_mlo ) && +! sdata -> deflink . u . mgd . have_beacon ) +return false ; + +rcu_read_lock ( ) ; +sta = sta_info_get ( sdata , sdata -> vif . cfg . ap_addr ) ; +if ( sta ) +authorized = test_sta_flag ( sta , wlan_sta_authorized ) ; +rcu_read_unlock ( ) ; + +return authorized ; +} + + +void ieee80211_recalc_ps ( struct ieee80211_local * local ) +{ +struct ieee80211_sub_if_data * sdata , * found = null ; +int count = 0 ; +int timeout ; + +if ( ! ieee80211_hw_check ( & local -> hw , supports_ps ) || +ieee80211_hw_check ( & local -> hw , supports_dynamic_ps ) ) { +local -> ps_sdata = null ; +return ; +} + +list_for_each_entry ( sdata , & local -> interfaces , list ) { +if ( ! ieee80211_sdata_running ( sdata ) ) +continue ; +if ( sdata -> vif . type == nl80211_iftype_ap ) { + + + + +count = 0 ; +break ; +} +if ( sdata -> vif . type != nl80211_iftype_station ) +continue ; +found = sdata ; +count ++ ; +} + +if ( count == 1 && ieee80211_powersave_allowed ( found ) ) { +u8 dtimper = found -> deflink . u . mgd . dtim_period ; + +timeout = local -> dynamic_ps_forced_timeout ; +if ( timeout < 0 ) +timeout = 100 ; +local -> hw . conf . dynamic_ps_timeout = timeout ; + + +if ( ! dtimper ) +dtimper = 1 ; + +local -> hw . conf . ps_dtim_period = dtimper ; +local -> ps_sdata = found ; +} else { +local -> ps_sdata = null ; +} + +ieee80211_change_ps ( local ) ; +} + +void ieee80211_recalc_ps_vif ( struct ieee80211_sub_if_data * sdata ) +{ +bool ps_allowed = ieee80211_powersave_allowed ( sdata ) ; + +if ( sdata -> vif . cfg . ps != ps_allowed ) { +sdata -> vif . cfg . ps = ps_allowed ; +ieee80211_vif_cfg_change_notify ( sdata , bss_changed_ps ) ; +} +} + +void ieee80211_dynamic_ps_disable_work ( struct work_struct * work ) +{ +struct ieee80211_local * local = +container_of ( work , struct ieee80211_local , +dynamic_ps_disable_work ) ; + +if ( local -> hw . conf . flags & ieee80211_conf_ps ) { +local -> hw . conf . flags &= ~ ieee80211_conf_ps ; +ieee80211_hw_config ( local , ieee80211_conf_change_ps ) ; +} + +ieee80211_wake_queues_by_reason ( & local -> hw , +ieee80211_max_queue_map , +ieee80211_queue_stop_reason_ps , +false ) ; +} + +void ieee80211_dynamic_ps_enable_work ( struct work_struct * work ) +{ +struct ieee80211_local * local = +container_of ( work , struct ieee80211_local , +dynamic_ps_enable_work ) ; +struct ieee80211_sub_if_data * sdata = local -> ps_sdata ; +struct ieee80211_if_managed * ifmgd ; +unsigned long flags ; +int q ; + + +if ( ! sdata ) +return ; + +ifmgd = & sdata -> u . mgd ; + +if ( local -> hw . conf . flags & ieee80211_conf_ps ) +return ; + +if ( local -> hw . conf . dynamic_ps_timeout > 0 ) { + +if ( drv_tx_frames_pending ( local ) ) { +mod_timer ( & local -> dynamic_ps_timer , jiffies + +msecs_to_jiffies ( +local -> hw . conf . dynamic_ps_timeout ) ) ; +return ; +} + + + + + + +spin_lock_irqsave ( & local -> queue_stop_reason_lock , flags ) ; +for ( q = 0 ; q < local -> hw . queues ; q ++ ) { +if ( local -> queue_stop_reasons [ q ] ) { +spin_unlock_irqrestore ( & local -> queue_stop_reason_lock , +flags ) ; +mod_timer ( & local -> dynamic_ps_timer , jiffies + +msecs_to_jiffies ( +local -> hw . conf . dynamic_ps_timeout ) ) ; +return ; +} +} +spin_unlock_irqrestore ( & local -> queue_stop_reason_lock , flags ) ; +} + +if ( ieee80211_hw_check ( & local -> hw , ps_nullfunc_stack ) && +! ( ifmgd -> flags & ieee80211_sta_nullfunc_acked ) ) { +if ( drv_tx_frames_pending ( local ) ) { +mod_timer ( & local -> dynamic_ps_timer , jiffies + +msecs_to_jiffies ( +local -> hw . conf . dynamic_ps_timeout ) ) ; +} else { +ieee80211_send_nullfunc ( local , sdata , true ) ; + +ieee80211_flush_queues ( local , sdata , false ) ; +} +} + +if ( ! ( ieee80211_hw_check ( & local -> hw , reports_tx_ack_status ) && +ieee80211_hw_check ( & local -> hw , ps_nullfunc_stack ) ) || +( ifmgd -> flags & ieee80211_sta_nullfunc_acked ) ) { +ifmgd -> flags &= ~ ieee80211_sta_nullfunc_acked ; +local -> hw . conf . flags |= ieee80211_conf_ps ; +ieee80211_hw_config ( local , ieee80211_conf_change_ps ) ; +} +} + +void ieee80211_dynamic_ps_timer ( struct timer_list * t ) +{ +struct ieee80211_local * local = from_timer ( local , t , dynamic_ps_timer ) ; + +ieee80211_queue_work ( & local -> hw , & local -> dynamic_ps_enable_work ) ; +} + +void ieee80211_dfs_cac_timer_work ( struct work_struct * work ) +{ +struct delayed_work * delayed_work = to_delayed_work ( work ) ; +struct ieee80211_link_data * link = +container_of ( delayed_work , struct ieee80211_link_data , +dfs_cac_timer_work ) ; +struct cfg80211_chan_def chandef = link -> conf -> chandef ; +struct ieee80211_sub_if_data * sdata = link -> sdata ; + +mutex_lock ( & sdata -> local -> mtx ) ; +if ( sdata -> wdev . cac_started ) { +ieee80211_link_release_channel ( link ) ; +cfg80211_cac_event ( sdata -> dev , & chandef , +nl80211_radar_cac_finished , +gfp_kernel ) ; +} +mutex_unlock ( & sdata -> local -> mtx ) ; +} + +static bool +__ieee80211_sta_handle_tspec_ac_params ( struct ieee80211_sub_if_data * sdata ) +{ +struct ieee80211_local * local = sdata -> local ; +struct ieee80211_if_managed * ifmgd = & sdata -> u . mgd ; +bool ret = false ; +int ac ; + +if ( local -> hw . queues < ieee80211_num_acs ) +return false ; + +for ( ac = 0 ; ac < ieee80211_num_acs ; ac ++ ) { +struct ieee80211_sta_tx_tspec * tx_tspec = & ifmgd -> tx_tspec [ ac ] ; +int non_acm_ac ; +unsigned long now = jiffies ; + +if ( tx_tspec -> action == tx_tspec_action_none && +tx_tspec -> admitted_time && +time_after ( now , tx_tspec -> time_slice_start + hz ) ) { +tx_tspec -> consumed_tx_time = 0 ; +tx_tspec -> time_slice_start = now ; + +if ( tx_tspec -> downgraded ) +tx_tspec -> action = +tx_tspec_action_stop_downgrade ; +} + +switch ( tx_tspec -> action ) { +case tx_tspec_action_stop_downgrade : + +if ( drv_conf_tx ( local , & sdata -> deflink , ac , +& sdata -> deflink . tx_conf [ ac ] ) ) +link_err ( & sdata -> deflink , +"failed to set tx queue parameters for queue %d\n" , +ac ) ; +tx_tspec -> action = tx_tspec_action_none ; +tx_tspec -> downgraded = false ; +ret = true ; +break ; +case tx_tspec_action_downgrade : +if ( time_after ( now , tx_tspec -> time_slice_start + hz ) ) { +tx_tspec -> action = tx_tspec_action_none ; +ret = true ; +break ; +} + +for ( non_acm_ac = ac + 1 ; +non_acm_ac < ieee80211_num_acs ; +non_acm_ac ++ ) +if ( ! ( sdata -> wmm_acm & bit ( 7 - 2 * non_acm_ac ) ) ) +break ; + + + + + + + +if ( non_acm_ac >= ieee80211_num_acs ) +non_acm_ac = ieee80211_ac_bk ; +if ( drv_conf_tx ( local , & sdata -> deflink , ac , +& sdata -> deflink . tx_conf [ non_acm_ac ] ) ) +link_err ( & sdata -> deflink , +"failed to set tx queue parameters for queue %d\n" , +ac ) ; +tx_tspec -> action = tx_tspec_action_none ; +ret = true ; +schedule_delayed_work ( & ifmgd -> tx_tspec_wk , +tx_tspec -> time_slice_start + hz - now + 1 ) ; +break ; +case tx_tspec_action_none : + +break ; +} +} + +return ret ; +} + +void ieee80211_sta_handle_tspec_ac_params ( struct ieee80211_sub_if_data * sdata ) +{ +if ( __ieee80211_sta_handle_tspec_ac_params ( sdata ) ) +ieee80211_link_info_change_notify ( sdata , & sdata -> deflink , +bss_changed_qos ) ; +} + +static void ieee80211_sta_handle_tspec_ac_params_wk ( struct work_struct * work ) +{ +struct ieee80211_sub_if_data * sdata ; + +sdata = container_of ( work , struct ieee80211_sub_if_data , +u . mgd . tx_tspec_wk . work ) ; +ieee80211_sta_handle_tspec_ac_params ( sdata ) ; +} + +void ieee80211_mgd_set_link_qos_params ( struct ieee80211_link_data * link ) +{ +struct ieee80211_sub_if_data * sdata = link -> sdata ; +struct ieee80211_local * local = sdata -> local ; +struct ieee80211_if_managed * ifmgd = & sdata -> u . mgd ; +struct ieee80211_tx_queue_params * params = link -> tx_conf ; +u8 ac ; + +for ( ac = 0 ; ac < ieee80211_num_acs ; ac ++ ) { +mlme_dbg ( sdata , +"wmm ac=%d acm=%d aifs=%d cwmin=%d cwmax=%d txop=%d uapsd=%d, downgraded=%d\n" , +ac , params [ ac ] . acm , +params [ ac ] . aifs , params [ ac ] . cw_min , params [ ac ] . cw_max , +params [ ac ] . txop , params [ ac ] . uapsd , +ifmgd -> tx_tspec [ ac ] . downgraded ) ; +if ( ! ifmgd -> tx_tspec [ ac ] . downgraded && +drv_conf_tx ( local , link , ac , & params [ ac ] ) ) +link_err ( link , +"failed to set tx queue parameters for ac %d\n" , +ac ) ; +} +} + + +static bool +ieee80211_sta_wmm_params ( struct ieee80211_local * local , +struct ieee80211_link_data * link , +const u8 * wmm_param , size_t wmm_param_len , +const struct ieee80211_mu_edca_param_set * mu_edca ) +{ +struct ieee80211_sub_if_data * sdata = link -> sdata ; +struct ieee80211_tx_queue_params params [ ieee80211_num_acs ] ; +struct ieee80211_if_managed * ifmgd = & sdata -> u . mgd ; +size_t left ; +int count , mu_edca_count , ac ; +const u8 * pos ; +u8 uapsd_queues = 0 ; + +if ( ! local -> ops -> conf_tx ) +return false ; + +if ( local -> hw . queues < ieee80211_num_acs ) +return false ; + +if ( ! wmm_param ) +return false ; + +if ( wmm_param_len < 8 || wmm_param [ 5 ] != 1 ) +return false ; + +if ( ifmgd -> flags & ieee80211_sta_uapsd_enabled ) +uapsd_queues = ifmgd -> uapsd_queues ; + +count = wmm_param [ 6 ] & 0x0f ; + + + + +mu_edca_count = mu_edca ? mu_edca -> mu_qos_info & 0x0f : - 1 ; +if ( count == link -> u . mgd . wmm_last_param_set && +mu_edca_count == link -> u . mgd . mu_edca_last_param_set ) +return false ; +link -> u . mgd . wmm_last_param_set = count ; +link -> u . mgd . mu_edca_last_param_set = mu_edca_count ; + +pos = wmm_param + 8 ; +left = wmm_param_len - 8 ; + +memset ( & params , 0 , sizeof ( params ) ) ; + +sdata -> wmm_acm = 0 ; +for ( ; left >= 4 ; left -= 4 , pos += 4 ) { +int aci = ( pos [ 0 ] >> 5 ) & 0x03 ; +int acm = ( pos [ 0 ] >> 4 ) & 0x01 ; +bool uapsd = false ; + +switch ( aci ) { +case 1 : +ac = ieee80211_ac_bk ; +if ( acm ) +sdata -> wmm_acm |= bit ( 1 ) | bit ( 2 ) ; +if ( uapsd_queues & ieee80211_wmm_ie_sta_qosinfo_ac_bk ) +uapsd = true ; +params [ ac ] . mu_edca = ! ! mu_edca ; +if ( mu_edca ) +params [ ac ] . mu_edca_param_rec = mu_edca -> ac_bk ; +break ; +case 2 : +ac = ieee80211_ac_vi ; +if ( acm ) +sdata -> wmm_acm |= bit ( 4 ) | bit ( 5 ) ; +if ( uapsd_queues & ieee80211_wmm_ie_sta_qosinfo_ac_vi ) +uapsd = true ; +params [ ac ] . mu_edca = ! ! mu_edca ; +if ( mu_edca ) +params [ ac ] . mu_edca_param_rec = mu_edca -> ac_vi ; +break ; +case 3 : +ac = ieee80211_ac_vo ; +if ( acm ) +sdata -> wmm_acm |= bit ( 6 ) | bit ( 7 ) ; +if ( uapsd_queues & ieee80211_wmm_ie_sta_qosinfo_ac_vo ) +uapsd = true ; +params [ ac ] . mu_edca = ! ! mu_edca ; +if ( mu_edca ) +params [ ac ] . mu_edca_param_rec = mu_edca -> ac_vo ; +break ; +case 0 : +default : +ac = ieee80211_ac_be ; +if ( acm ) +sdata -> wmm_acm |= bit ( 0 ) | bit ( 3 ) ; +if ( uapsd_queues & ieee80211_wmm_ie_sta_qosinfo_ac_be ) +uapsd = true ; +params [ ac ] . mu_edca = ! ! mu_edca ; +if ( mu_edca ) +params [ ac ] . mu_edca_param_rec = mu_edca -> ac_be ; +break ; +} + +params [ ac ] . aifs = pos [ 0 ] & 0x0f ; + +if ( params [ ac ] . aifs < 2 ) { +sdata_info ( sdata , +"ap has invalid wmm params (aifsn=%d for aci %d), will use 2\n" , +params [ ac ] . aifs , aci ) ; +params [ ac ] . aifs = 2 ; +} +params [ ac ] . cw_max = ecw2cw ( ( pos [ 1 ] & 0xf0 ) >> 4 ) ; +params [ ac ] . cw_min = ecw2cw ( pos [ 1 ] & 0x0f ) ; +params [ ac ] . txop = get_unaligned_le16 ( pos + 2 ) ; +params [ ac ] . acm = acm ; +params [ ac ] . uapsd = uapsd ; + +if ( params [ ac ] . cw_min == 0 || +params [ ac ] . cw_min > params [ ac ] . cw_max ) { +sdata_info ( sdata , +"ap has invalid wmm params (cwmin/max=%d/%d for aci %d), using defaults\n" , +params [ ac ] . cw_min , params [ ac ] . cw_max , aci ) ; +return false ; +} +ieee80211_regulatory_limit_wmm_params ( sdata , & params [ ac ] , ac ) ; +} + + +for ( ac = 0 ; ac < ieee80211_num_acs ; ac ++ ) { +if ( params [ ac ] . cw_min == 0 ) { +sdata_info ( sdata , +"ap has invalid wmm params (missing ac %d), using defaults\n" , +ac ) ; +return false ; +} +} + +for ( ac = 0 ; ac < ieee80211_num_acs ; ac ++ ) +link -> tx_conf [ ac ] = params [ ac ] ; + +ieee80211_mgd_set_link_qos_params ( link ) ; + + +link -> conf -> qos = true ; +return true ; +} + +static void __ieee80211_stop_poll ( struct ieee80211_sub_if_data * sdata ) +{ +lockdep_assert_held ( & sdata -> local -> mtx ) ; + +sdata -> u . mgd . flags &= ~ ieee80211_sta_connection_poll ; +ieee80211_run_deferred_scan ( sdata -> local ) ; +} + +static void ieee80211_stop_poll ( struct ieee80211_sub_if_data * sdata ) +{ +mutex_lock ( & sdata -> local -> mtx ) ; +__ieee80211_stop_poll ( sdata ) ; +mutex_unlock ( & sdata -> local -> mtx ) ; +} + +static u32 ieee80211_handle_bss_capability ( struct ieee80211_link_data * link , +u16 capab , bool erp_valid , u8 erp ) +{ +struct ieee80211_bss_conf * bss_conf = link -> conf ; +struct ieee80211_supported_band * sband ; +u32 changed = 0 ; +bool use_protection ; +bool use_short_preamble ; +bool use_short_slot ; + +sband = ieee80211_get_link_sband ( link ) ; +if ( ! sband ) +return changed ; + +if ( erp_valid ) { +use_protection = ( erp & wlan_erp_use_protection ) != 0 ; +use_short_preamble = ( erp & wlan_erp_barker_preamble ) == 0 ; +} else { +use_protection = false ; +use_short_preamble = ! ! ( capab & wlan_capability_short_preamble ) ; +} + +use_short_slot = ! ! ( capab & wlan_capability_short_slot_time ) ; +if ( sband -> band == nl80211_band_5ghz || +sband -> band == nl80211_band_6ghz ) +use_short_slot = true ; + +if ( use_protection != bss_conf -> use_cts_prot ) { +bss_conf -> use_cts_prot = use_protection ; +changed |= bss_changed_erp_cts_prot ; +} + +if ( use_short_preamble != bss_conf -> use_short_preamble ) { +bss_conf -> use_short_preamble = use_short_preamble ; +changed |= bss_changed_erp_preamble ; +} + +if ( use_short_slot != bss_conf -> use_short_slot ) { +bss_conf -> use_short_slot = use_short_slot ; +changed |= bss_changed_erp_slot ; +} + +return changed ; +} + +static u32 ieee80211_link_set_associated ( struct ieee80211_link_data * link , +struct cfg80211_bss * cbss ) +{ +struct ieee80211_sub_if_data * sdata = link -> sdata ; +struct ieee80211_bss_conf * bss_conf = link -> conf ; +struct ieee80211_bss * bss = ( void * ) cbss -> priv ; +u32 changed = bss_changed_qos ; + + +sdata -> u . mgd . beacon_timeout = +usecs_to_jiffies ( ieee80211_tu_to_usec ( beacon_loss_count * +bss_conf -> beacon_int ) ) ; + +changed |= ieee80211_handle_bss_capability ( link , +bss_conf -> assoc_capability , +bss -> has_erp_value , +bss -> erp_value ) ; + +ieee80211_check_rate_mask ( link ) ; + +link -> u . mgd . bss = cbss ; +memcpy ( link -> u . mgd . bssid , cbss -> bssid , eth_alen ) ; + +if ( sdata -> vif . p2p || +sdata -> vif . driver_flags & ieee80211_vif_get_noa_update ) { +const struct cfg80211_bss_ies * ies ; + +rcu_read_lock ( ) ; +ies = rcu_dereference ( cbss -> ies ) ; +if ( ies ) { +int ret ; + +ret = cfg80211_get_p2p_attr ( +ies -> data , ies -> len , +ieee80211_p2p_attr_absence_notice , +( u8 * ) & bss_conf -> p2p_noa_attr , +sizeof ( bss_conf -> p2p_noa_attr ) ) ; +if ( ret >= 2 ) { +link -> u . mgd . p2p_noa_index = +bss_conf -> p2p_noa_attr . index ; +changed |= bss_changed_p2p_ps ; +} +} +rcu_read_unlock ( ) ; +} + +if ( link -> u . mgd . have_beacon ) { +bss_conf -> beacon_rate = bss -> beacon_rate ; +changed |= bss_changed_beacon_info ; +} else { +bss_conf -> beacon_rate = null ; +} + + +if ( sdata -> vif . driver_flags & ieee80211_vif_supports_cqm_rssi && +bss_conf -> cqm_rssi_thold ) +changed |= bss_changed_cqm ; + +return changed ; +} + +static void ieee80211_set_associated ( struct ieee80211_sub_if_data * sdata , +struct ieee80211_mgd_assoc_data * assoc_data , +u64 changed [ ieee80211_mld_max_num_links ] ) +{ +struct ieee80211_local * local = sdata -> local ; +struct ieee80211_vif_cfg * vif_cfg = & sdata -> vif . cfg ; +u64 vif_changed = bss_changed_assoc ; +unsigned int link_id ; + +sdata -> u . mgd . associated = true ; + +for ( link_id = 0 ; link_id < ieee80211_mld_max_num_links ; link_id ++ ) { +struct cfg80211_bss * cbss = assoc_data -> link [ link_id ] . bss ; +struct ieee80211_link_data * link ; + +if ( ! cbss || +assoc_data -> link [ link_id ] . status != wlan_status_success ) +continue ; + +link = sdata_dereference ( sdata -> link [ link_id ] , sdata ) ; +if ( warn_on ( ! link ) ) +return ; + +changed [ link_id ] |= ieee80211_link_set_associated ( link , cbss ) ; +} + + +ieee80211_stop_poll ( sdata ) ; + +ieee80211_led_assoc ( local , 1 ) ; + +vif_cfg -> assoc = 1 ; + + +if ( vif_cfg -> arp_addr_cnt ) +vif_changed |= bss_changed_arp_filter ; + +if ( sdata -> vif . valid_links ) { +for ( link_id = 0 ; +link_id < ieee80211_mld_max_num_links ; +link_id ++ ) { +struct ieee80211_link_data * link ; +struct cfg80211_bss * cbss = assoc_data -> link [ link_id ] . bss ; + +if ( ! cbss || +assoc_data -> link [ link_id ] . status != wlan_status_success ) +continue ; + +link = sdata_dereference ( sdata -> link [ link_id ] , sdata ) ; +if ( warn_on ( ! link ) ) +return ; + +ieee80211_link_info_change_notify ( sdata , link , +changed [ link_id ] ) ; + +ieee80211_recalc_smps ( sdata , link ) ; +} + +ieee80211_vif_cfg_change_notify ( sdata , vif_changed ) ; +} else { +ieee80211_bss_info_change_notify ( sdata , +vif_changed | changed [ 0 ] ) ; +} + +mutex_lock ( & local -> iflist_mtx ) ; +ieee80211_recalc_ps ( local ) ; +mutex_unlock ( & local -> iflist_mtx ) ; + + +if ( ! sdata -> vif . valid_links ) +ieee80211_recalc_smps ( sdata , & sdata -> deflink ) ; +ieee80211_recalc_ps_vif ( sdata ) ; + +netif_carrier_on ( sdata -> dev ) ; +} + +static void ieee80211_set_disassoc ( struct ieee80211_sub_if_data * sdata , +u16 stype , u16 reason , bool tx , +u8 * frame_buf ) +{ +struct ieee80211_if_managed * ifmgd = & sdata -> u . mgd ; +struct ieee80211_local * local = sdata -> local ; +unsigned int link_id ; +u32 changed = 0 ; +struct ieee80211_prep_tx_info info = { +. subtype = stype , +} ; + +sdata_assert_lock ( sdata ) ; + +if ( warn_on_once ( tx && ! frame_buf ) ) +return ; + +if ( warn_on ( ! ifmgd -> associated ) ) +return ; + +ieee80211_stop_poll ( sdata ) ; + +ifmgd -> associated = false ; + + +sdata -> deflink . u . mgd . bss = null ; + +netif_carrier_off ( sdata -> dev ) ; + + + + + + +if ( local -> hw . conf . flags & ieee80211_conf_ps ) { +local -> hw . conf . flags &= ~ ieee80211_conf_ps ; +ieee80211_hw_config ( local , ieee80211_conf_change_ps ) ; +} +local -> ps_sdata = null ; + + +ieee80211_recalc_ps_vif ( sdata ) ; + + +synchronize_net ( ) ; + + + + + + + +if ( tx ) +ieee80211_flush_queues ( local , sdata , true ) ; + + +if ( tx || frame_buf ) { + + + + + + +if ( ieee80211_hw_check ( & local -> hw , deauth_need_mgd_tx_prep ) && +! sdata -> deflink . u . mgd . have_beacon ) { +drv_mgd_prepare_tx ( sdata -> local , sdata , & info ) ; +} + +ieee80211_send_deauth_disassoc ( sdata , sdata -> vif . cfg . ap_addr , +sdata -> vif . cfg . ap_addr , stype , +reason , tx , frame_buf ) ; +} + + +if ( tx ) +ieee80211_flush_queues ( local , sdata , false ) ; + +drv_mgd_complete_tx ( sdata -> local , sdata , & info ) ; + + +eth_zero_addr ( sdata -> deflink . u . mgd . bssid ) ; +eth_zero_addr ( sdata -> vif . cfg . ap_addr ) ; + +sdata -> vif . cfg . ssid_len = 0 ; + + +sta_info_flush ( sdata ) ; + + +if ( ! sdata -> vif . valid_links ) +changed |= ieee80211_reset_erp_info ( sdata ) ; + +ieee80211_led_assoc ( local , 0 ) ; +changed |= bss_changed_assoc ; +sdata -> vif . cfg . assoc = false ; + +sdata -> deflink . u . mgd . p2p_noa_index = - 1 ; +memset ( & sdata -> vif . bss_conf . p2p_noa_attr , 0 , +sizeof ( sdata -> vif . bss_conf . p2p_noa_attr ) ) ; + + +memset ( & ifmgd -> ht_capa , 0 , sizeof ( ifmgd -> ht_capa ) ) ; +memset ( & ifmgd -> ht_capa_mask , 0 , sizeof ( ifmgd -> ht_capa_mask ) ) ; +memset ( & ifmgd -> vht_capa , 0 , sizeof ( ifmgd -> vht_capa ) ) ; +memset ( & ifmgd -> vht_capa_mask , 0 , sizeof ( ifmgd -> vht_capa_mask ) ) ; + + + + + +memset ( sdata -> vif . bss_conf . mu_group . membership , 0 , +sizeof ( sdata -> vif . bss_conf . mu_group . membership ) ) ; +memset ( sdata -> vif . bss_conf . mu_group . position , 0 , +sizeof ( sdata -> vif . bss_conf . mu_group . position ) ) ; +if ( ! sdata -> vif . valid_links ) +changed |= bss_changed_mu_groups ; +sdata -> vif . bss_conf . mu_mimo_owner = false ; + +sdata -> deflink . ap_power_level = ieee80211_unset_power_level ; + +del_timer_sync ( & local -> dynamic_ps_timer ) ; +cancel_work_sync ( & local -> dynamic_ps_enable_work ) ; + + +if ( sdata -> vif . cfg . arp_addr_cnt ) +changed |= bss_changed_arp_filter ; + +sdata -> vif . bss_conf . qos = false ; +if ( ! sdata -> vif . valid_links ) { +changed |= bss_changed_qos ; + +changed |= bss_changed_bssid | bss_changed_ht ; +ieee80211_bss_info_change_notify ( sdata , changed ) ; +} else { +ieee80211_vif_cfg_change_notify ( sdata , changed ) ; +} + + +ieee80211_set_wmm_default ( & sdata -> deflink , false , false ) ; + +del_timer_sync ( & sdata -> u . mgd . conn_mon_timer ) ; +del_timer_sync ( & sdata -> u . mgd . bcn_mon_timer ) ; +del_timer_sync ( & sdata -> u . mgd . timer ) ; +del_timer_sync ( & sdata -> deflink . u . mgd . chswitch_timer ) ; + +sdata -> vif . bss_conf . dtim_period = 0 ; +sdata -> vif . bss_conf . beacon_rate = null ; + +sdata -> deflink . u . mgd . have_beacon = false ; +sdata -> deflink . u . mgd . tracking_signal_avg = false ; +sdata -> deflink . u . mgd . disable_wmm_tracking = false ; + +ifmgd -> flags = 0 ; +sdata -> deflink . u . mgd . conn_flags = 0 ; +mutex_lock ( & local -> mtx ) ; + +for ( link_id = 0 ; link_id < array_size ( sdata -> link ) ; link_id ++ ) { +struct ieee80211_link_data * link ; + +link = sdata_dereference ( sdata -> link [ link_id ] , sdata ) ; +if ( ! link ) +continue ; +ieee80211_link_release_channel ( link ) ; +} + +sdata -> vif . bss_conf . csa_active = false ; +sdata -> deflink . u . mgd . csa_waiting_bcn = false ; +sdata -> deflink . u . mgd . csa_ignored_same_chan = false ; +if ( sdata -> deflink . csa_block_tx ) { +ieee80211_wake_vif_queues ( local , sdata , +ieee80211_queue_stop_reason_csa ) ; +sdata -> deflink . csa_block_tx = false ; +} +mutex_unlock ( & local -> mtx ) ; + + +memset ( ifmgd -> tx_tspec , 0 , sizeof ( ifmgd -> tx_tspec ) ) ; +cancel_delayed_work_sync ( & ifmgd -> tx_tspec_wk ) ; + +sdata -> vif . bss_conf . pwr_reduction = 0 ; +sdata -> vif . bss_conf . tx_pwr_env_num = 0 ; +memset ( sdata -> vif . bss_conf . tx_pwr_env , 0 , +sizeof ( sdata -> vif . bss_conf . tx_pwr_env ) ) ; + +ieee80211_vif_set_links ( sdata , 0 ) ; +} + +static void ieee80211_reset_ap_probe ( struct ieee80211_sub_if_data * sdata ) +{ +struct ieee80211_if_managed * ifmgd = & sdata -> u . mgd ; +struct ieee80211_local * local = sdata -> local ; + +mutex_lock ( & local -> mtx ) ; +if ( ! ( ifmgd -> flags & ieee80211_sta_connection_poll ) ) +goto out ; + +__ieee80211_stop_poll ( sdata ) ; + +mutex_lock ( & local -> iflist_mtx ) ; +ieee80211_recalc_ps ( local ) ; +mutex_unlock ( & local -> iflist_mtx ) ; + +if ( ieee80211_hw_check ( & sdata -> local -> hw , connection_monitor ) ) +goto out ; + + + + + + +ieee80211_sta_reset_beacon_monitor ( sdata ) ; + +mod_timer ( & ifmgd -> conn_mon_timer , +round_jiffies_up ( jiffies + +ieee80211_connection_idle_time ) ) ; +out : +mutex_unlock ( & local -> mtx ) ; +} + +static void ieee80211_sta_tx_wmm_ac_notify ( struct ieee80211_sub_if_data * sdata , +struct ieee80211_hdr * hdr , +u16 tx_time ) +{ +struct ieee80211_if_managed * ifmgd = & sdata -> u . mgd ; +u16 tid ; +int ac ; +struct ieee80211_sta_tx_tspec * tx_tspec ; +unsigned long now = jiffies ; + +if ( ! ieee80211_is_data_qos ( hdr -> frame_control ) ) +return ; + +tid = ieee80211_get_tid ( hdr ) ; +ac = ieee80211_ac_from_tid ( tid ) ; +tx_tspec = & ifmgd -> tx_tspec [ ac ] ; + +if ( likely ( ! tx_tspec -> admitted_time ) ) +return ; + +if ( time_after ( now , tx_tspec -> time_slice_start + hz ) ) { +tx_tspec -> consumed_tx_time = 0 ; +tx_tspec -> time_slice_start = now ; + +if ( tx_tspec -> downgraded ) { +tx_tspec -> action = tx_tspec_action_stop_downgrade ; +schedule_delayed_work ( & ifmgd -> tx_tspec_wk , 0 ) ; +} +} + +if ( tx_tspec -> downgraded ) +return ; + +tx_tspec -> consumed_tx_time += tx_time ; + +if ( tx_tspec -> consumed_tx_time >= tx_tspec -> admitted_time ) { +tx_tspec -> downgraded = true ; +tx_tspec -> action = tx_tspec_action_downgrade ; +schedule_delayed_work ( & ifmgd -> tx_tspec_wk , 0 ) ; +} +} + +void ieee80211_sta_tx_notify ( struct ieee80211_sub_if_data * sdata , +struct ieee80211_hdr * hdr , bool ack , u16 tx_time ) +{ +ieee80211_sta_tx_wmm_ac_notify ( sdata , hdr , tx_time ) ; + +if ( ! ieee80211_is_any_nullfunc ( hdr -> frame_control ) || +! sdata -> u . mgd . probe_send_count ) +return ; + +if ( ack ) +sdata -> u . mgd . probe_send_count = 0 ; +else +sdata -> u . mgd . nullfunc_failed = true ; +ieee80211_queue_work ( & sdata -> local -> hw , & sdata -> work ) ; +} + +static void ieee80211_mlme_send_probe_req ( struct ieee80211_sub_if_data * sdata , +const u8 * src , const u8 * dst , +const u8 * ssid , size_t ssid_len , +struct ieee80211_channel * channel ) +{ +struct sk_buff * skb ; + +skb = ieee80211_build_probe_req ( sdata , src , dst , ( u32 ) - 1 , channel , +ssid , ssid_len , null , 0 , +ieee80211_probe_flag_directed ) ; +if ( skb ) +ieee80211_tx_skb ( sdata , skb ) ; +} + +static void ieee80211_mgd_probe_ap_send ( struct ieee80211_sub_if_data * sdata ) +{ +struct ieee80211_if_managed * ifmgd = & sdata -> u . mgd ; +u8 * dst = sdata -> vif . cfg . ap_addr ; +u8 unicast_limit = max ( 1 , max_probe_tries - 3 ) ; +struct sta_info * sta ; + +if ( warn_on ( sdata -> vif . valid_links ) ) +return ; + + + + + + +if ( ifmgd -> probe_send_count >= unicast_limit ) +dst = null ; + + + + + + + + +ifmgd -> probe_send_count ++ ; + +if ( dst ) { +mutex_lock ( & sdata -> local -> sta_mtx ) ; +sta = sta_info_get ( sdata , dst ) ; +if ( ! warn_on ( ! sta ) ) +ieee80211_check_fast_rx ( sta ) ; +mutex_unlock ( & sdata -> local -> sta_mtx ) ; +} + +if ( ieee80211_hw_check ( & sdata -> local -> hw , reports_tx_ack_status ) ) { +ifmgd -> nullfunc_failed = false ; +ieee80211_send_nullfunc ( sdata -> local , sdata , false ) ; +} else { +ieee80211_mlme_send_probe_req ( sdata , sdata -> vif . addr , dst , +sdata -> vif . cfg . ssid , +sdata -> vif . cfg . ssid_len , +sdata -> deflink . u . mgd . bss -> channel ) ; +} + +ifmgd -> probe_timeout = jiffies + msecs_to_jiffies ( probe_wait_ms ) ; +run_again ( sdata , ifmgd -> probe_timeout ) ; +} + +static void ieee80211_mgd_probe_ap ( struct ieee80211_sub_if_data * sdata , +bool beacon ) +{ +struct ieee80211_if_managed * ifmgd = & sdata -> u . mgd ; +bool already = false ; + +if ( warn_on ( sdata -> vif . valid_links ) ) +return ; + +if ( ! ieee80211_sdata_running ( sdata ) ) +return ; + +sdata_lock ( sdata ) ; + +if ( ! ifmgd -> associated ) +goto out ; + +mutex_lock ( & sdata -> local -> mtx ) ; + +if ( sdata -> local -> tmp_channel || sdata -> local -> scanning ) { +mutex_unlock ( & sdata -> local -> mtx ) ; +goto out ; +} + +if ( sdata -> local -> suspending ) { + +mutex_unlock ( & sdata -> local -> mtx ) ; +ieee80211_reset_ap_probe ( sdata ) ; +goto out ; +} + +if ( beacon ) { +mlme_dbg_ratelimited ( sdata , +"detected beacon loss from ap (missed %d beacons) - probing\n" , +beacon_loss_count ) ; + +ieee80211_cqm_beacon_loss_notify ( & sdata -> vif , gfp_kernel ) ; +} + + + + + + + + + + + + +if ( ifmgd -> flags & ieee80211_sta_connection_poll ) +already = true ; + +ifmgd -> flags |= ieee80211_sta_connection_poll ; + +mutex_unlock ( & sdata -> local -> mtx ) ; + +if ( already ) +goto out ; + +mutex_lock ( & sdata -> local -> iflist_mtx ) ; +ieee80211_recalc_ps ( sdata -> local ) ; +mutex_unlock ( & sdata -> local -> iflist_mtx ) ; + +ifmgd -> probe_send_count = 0 ; +ieee80211_mgd_probe_ap_send ( sdata ) ; +out : +sdata_unlock ( sdata ) ; +} + +struct sk_buff * ieee80211_ap_probereq_get ( struct ieee80211_hw * hw , +struct ieee80211_vif * vif ) +{ +struct ieee80211_sub_if_data * sdata = vif_to_sdata ( vif ) ; +struct ieee80211_if_managed * ifmgd = & sdata -> u . mgd ; +struct cfg80211_bss * cbss ; +struct sk_buff * skb ; +const struct element * ssid ; +int ssid_len ; + +if ( warn_on ( sdata -> vif . type != nl80211_iftype_station || +sdata -> vif . valid_links ) ) +return null ; + +sdata_assert_lock ( sdata ) ; + +if ( ifmgd -> associated ) +cbss = sdata -> deflink . u . mgd . bss ; +else if ( ifmgd -> auth_data ) +cbss = ifmgd -> auth_data -> bss ; +else if ( ifmgd -> assoc_data && ifmgd -> assoc_data -> link [ 0 ] . bss ) +cbss = ifmgd -> assoc_data -> link [ 0 ] . bss ; +else +return null ; + +rcu_read_lock ( ) ; +ssid = ieee80211_bss_get_elem ( cbss , wlan_eid_ssid ) ; +if ( warn_once ( ! ssid || ssid -> datalen > ieee80211_max_ssid_len , +"invalid ssid element (len=%d)" , +ssid ? ssid -> datalen : - 1 ) ) +ssid_len = 0 ; +else +ssid_len = ssid -> datalen ; + +skb = ieee80211_build_probe_req ( sdata , sdata -> vif . addr , cbss -> bssid , +( u32 ) - 1 , cbss -> channel , +ssid -> data , ssid_len , +null , 0 , ieee80211_probe_flag_directed ) ; +rcu_read_unlock ( ) ; + +return skb ; +} +export_symbol ( ieee80211_ap_probereq_get ) ; + +static void ieee80211_report_disconnect ( struct ieee80211_sub_if_data * sdata , +const u8 * buf , size_t len , bool tx , +u16 reason , bool reconnect ) +{ +struct ieee80211_event event = { +. type = mlme_event , +. u . mlme . data = tx ? deauth_tx_event : deauth_rx_event , +. u . mlme . reason = reason , +} ; + +if ( tx ) +cfg80211_tx_mlme_mgmt ( sdata -> dev , buf , len , reconnect ) ; +else +cfg80211_rx_mlme_mgmt ( sdata -> dev , buf , len ) ; + +drv_event_callback ( sdata -> local , sdata , & event ) ; +} + +static void __ieee80211_disconnect ( struct ieee80211_sub_if_data * sdata ) +{ +struct ieee80211_local * local = sdata -> local ; +struct ieee80211_if_managed * ifmgd = & sdata -> u . mgd ; +u8 frame_buf [ ieee80211_deauth_frame_len ] ; +bool tx ; + +sdata_lock ( sdata ) ; +if ( ! ifmgd -> associated ) { +sdata_unlock ( sdata ) ; +return ; +} + + +tx = sdata -> vif . valid_links || ! sdata -> deflink . csa_block_tx ; + +if ( ! ifmgd -> driver_disconnect ) { +unsigned int link_id ; + + + + + + + + +for ( link_id = 0 ; +link_id < array_size ( sdata -> link ) ; +link_id ++ ) { +struct ieee80211_link_data * link ; + +link = sdata_dereference ( sdata -> link [ link_id ] , sdata ) ; +if ( ! link ) +continue ; +cfg80211_unlink_bss ( local -> hw . wiphy , link -> u . mgd . bss ) ; +link -> u . mgd . bss = null ; +} +} + +ieee80211_set_disassoc ( sdata , ieee80211_stype_deauth , +ifmgd -> driver_disconnect ? +wlan_reason_deauth_leaving : +wlan_reason_disassoc_due_to_inactivity , +tx , frame_buf ) ; +mutex_lock ( & local -> mtx ) ; + +sdata -> vif . bss_conf . csa_active = false ; +sdata -> deflink . u . mgd . csa_waiting_bcn = false ; +if ( sdata -> deflink . csa_block_tx ) { +ieee80211_wake_vif_queues ( local , sdata , +ieee80211_queue_stop_reason_csa ) ; +sdata -> deflink . csa_block_tx = false ; +} +mutex_unlock ( & local -> mtx ) ; + +ieee80211_report_disconnect ( sdata , frame_buf , sizeof ( frame_buf ) , tx , +wlan_reason_disassoc_due_to_inactivity , +ifmgd -> reconnect ) ; +ifmgd -> reconnect = false ; + +sdata_unlock ( sdata ) ; +} + +static void ieee80211_beacon_connection_loss_work ( struct work_struct * work ) +{ +struct ieee80211_sub_if_data * sdata = +container_of ( work , struct ieee80211_sub_if_data , +u . mgd . beacon_connection_loss_work ) ; +struct ieee80211_if_managed * ifmgd = & sdata -> u . mgd ; + +if ( ifmgd -> connection_loss ) { +sdata_info ( sdata , "connection to ap %pm lost\n" , +sdata -> vif . cfg . ap_addr ) ; +__ieee80211_disconnect ( sdata ) ; +ifmgd -> connection_loss = false ; +} else if ( ifmgd -> driver_disconnect ) { +sdata_info ( sdata , +"driver requested disconnection from ap %pm\n" , +sdata -> vif . cfg . ap_addr ) ; +__ieee80211_disconnect ( sdata ) ; +ifmgd -> driver_disconnect = false ; +} else { +if ( ifmgd -> associated ) +sdata -> deflink . u . mgd . beacon_loss_count ++ ; +ieee80211_mgd_probe_ap ( sdata , true ) ; +} +} + +static void ieee80211_csa_connection_drop_work ( struct work_struct * work ) +{ +struct ieee80211_sub_if_data * sdata = +container_of ( work , struct ieee80211_sub_if_data , +u . mgd . csa_connection_drop_work ) ; + +__ieee80211_disconnect ( sdata ) ; +} + +void ieee80211_beacon_loss ( struct ieee80211_vif * vif ) +{ +struct ieee80211_sub_if_data * sdata = vif_to_sdata ( vif ) ; +struct ieee80211_hw * hw = & sdata -> local -> hw ; + +trace_api_beacon_loss ( sdata ) ; + +sdata -> u . mgd . connection_loss = false ; +ieee80211_queue_work ( hw , & sdata -> u . mgd . beacon_connection_loss_work ) ; +} +export_symbol ( ieee80211_beacon_loss ) ; + +void ieee80211_connection_loss ( struct ieee80211_vif * vif ) +{ +struct ieee80211_sub_if_data * sdata = vif_to_sdata ( vif ) ; +struct ieee80211_hw * hw = & sdata -> local -> hw ; + +trace_api_connection_loss ( sdata ) ; + +sdata -> u . mgd . connection_loss = true ; +ieee80211_queue_work ( hw , & sdata -> u . mgd . beacon_connection_loss_work ) ; +} +export_symbol ( ieee80211_connection_loss ) ; + +void ieee80211_disconnect ( struct ieee80211_vif * vif , bool reconnect ) +{ +struct ieee80211_sub_if_data * sdata = vif_to_sdata ( vif ) ; +struct ieee80211_hw * hw = & sdata -> local -> hw ; + +trace_api_disconnect ( sdata , reconnect ) ; + +if ( warn_on ( sdata -> vif . type != nl80211_iftype_station ) ) +return ; + +sdata -> u . mgd . driver_disconnect = true ; +sdata -> u . mgd . reconnect = reconnect ; +ieee80211_queue_work ( hw , & sdata -> u . mgd . beacon_connection_loss_work ) ; +} +export_symbol ( ieee80211_disconnect ) ; + +static void ieee80211_destroy_auth_data ( struct ieee80211_sub_if_data * sdata , +bool assoc ) +{ +struct ieee80211_mgd_auth_data * auth_data = sdata -> u . mgd . auth_data ; + +sdata_assert_lock ( sdata ) ; + +if ( ! assoc ) { + + + + + +del_timer_sync ( & sdata -> u . mgd . timer ) ; +sta_info_destroy_addr ( sdata , auth_data -> ap_addr ) ; + + +sdata -> deflink . u . mgd . conn_flags = 0 ; +eth_zero_addr ( sdata -> deflink . u . mgd . bssid ) ; +ieee80211_link_info_change_notify ( sdata , & sdata -> deflink , +bss_changed_bssid ) ; +sdata -> u . mgd . flags = 0 ; + +mutex_lock ( & sdata -> local -> mtx ) ; +ieee80211_link_release_channel ( & sdata -> deflink ) ; +ieee80211_vif_set_links ( sdata , 0 ) ; +mutex_unlock ( & sdata -> local -> mtx ) ; +} + +cfg80211_put_bss ( sdata -> local -> hw . wiphy , auth_data -> bss ) ; +kfree ( auth_data ) ; +sdata -> u . mgd . auth_data = null ; +} + +enum assoc_status { +assoc_success , +assoc_rejected , +assoc_timeout , +assoc_abandon , +} ; + +static void ieee80211_destroy_assoc_data ( struct ieee80211_sub_if_data * sdata , +enum assoc_status status ) +{ +struct ieee80211_mgd_assoc_data * assoc_data = sdata -> u . mgd . assoc_data ; + +sdata_assert_lock ( sdata ) ; + +if ( status != assoc_success ) { + + + + + +del_timer_sync ( & sdata -> u . mgd . timer ) ; +sta_info_destroy_addr ( sdata , assoc_data -> ap_addr ) ; + +sdata -> deflink . u . mgd . conn_flags = 0 ; +eth_zero_addr ( sdata -> deflink . u . mgd . bssid ) ; +ieee80211_link_info_change_notify ( sdata , & sdata -> deflink , +bss_changed_bssid ) ; +sdata -> u . mgd . flags = 0 ; +sdata -> vif . bss_conf . mu_mimo_owner = false ; + +if ( status != assoc_rejected ) { +struct cfg80211_assoc_failure data = { +. timeout = status == assoc_timeout , +} ; +int i ; + +build_bug_on ( array_size ( data . bss ) != +array_size ( assoc_data -> link ) ) ; + +for ( i = 0 ; i < array_size ( data . bss ) ; i ++ ) +data . bss [ i ] = assoc_data -> link [ i ] . bss ; + +if ( sdata -> vif . valid_links ) +data . ap_mld_addr = assoc_data -> ap_addr ; + +cfg80211_assoc_failure ( sdata -> dev , & data ) ; +} + +mutex_lock ( & sdata -> local -> mtx ) ; +ieee80211_link_release_channel ( & sdata -> deflink ) ; +ieee80211_vif_set_links ( sdata , 0 ) ; +mutex_unlock ( & sdata -> local -> mtx ) ; +} + +kfree ( assoc_data ) ; +sdata -> u . mgd . assoc_data = null ; +} + +static void ieee80211_auth_challenge ( struct ieee80211_sub_if_data * sdata , +struct ieee80211_mgmt * mgmt , size_t len ) +{ +struct ieee80211_local * local = sdata -> local ; +struct ieee80211_mgd_auth_data * auth_data = sdata -> u . mgd . auth_data ; +const struct element * challenge ; +u8 * pos ; +u32 tx_flags = 0 ; +struct ieee80211_prep_tx_info info = { +. subtype = ieee80211_stype_auth , +} ; + +pos = mgmt -> u . auth . variable ; +challenge = cfg80211_find_elem ( wlan_eid_challenge , pos , +len - ( pos - ( u8 * ) mgmt ) ) ; +if ( ! challenge ) +return ; +auth_data -> expected_transaction = 4 ; +drv_mgd_prepare_tx ( sdata -> local , sdata , & info ) ; +if ( ieee80211_hw_check ( & local -> hw , reports_tx_ack_status ) ) +tx_flags = ieee80211_tx_ctl_req_tx_status | +ieee80211_tx_intfl_mlme_conn_tx ; +ieee80211_send_auth ( sdata , 3 , auth_data -> algorithm , 0 , +( void * ) challenge , +challenge -> datalen + sizeof ( * challenge ) , +auth_data -> ap_addr , auth_data -> ap_addr , +auth_data -> key , auth_data -> key_len , +auth_data -> key_idx , tx_flags ) ; +} + +static bool ieee80211_mark_sta_auth ( struct ieee80211_sub_if_data * sdata ) +{ +struct ieee80211_if_managed * ifmgd = & sdata -> u . mgd ; +const u8 * ap_addr = ifmgd -> auth_data -> ap_addr ; +struct sta_info * sta ; +bool result = true ; + +sdata_info ( sdata , "authenticated\n" ) ; +ifmgd -> auth_data -> done = true ; +ifmgd -> auth_data -> timeout = jiffies + ieee80211_auth_wait_assoc ; +ifmgd -> auth_data -> timeout_started = true ; +run_again ( sdata , ifmgd -> auth_data -> timeout ) ; + + +mutex_lock ( & sdata -> local -> sta_mtx ) ; +sta = sta_info_get ( sdata , ap_addr ) ; +if ( ! sta ) { +warn_once ( 1 , "%s: sta %pm not found" , sdata -> name , ap_addr ) ; +result = false ; +goto out ; +} +if ( sta_info_move_state ( sta , ieee80211_sta_auth ) ) { +sdata_info ( sdata , "failed moving %pm to auth\n" , ap_addr ) ; +result = false ; +goto out ; +} + +out : +mutex_unlock ( & sdata -> local -> sta_mtx ) ; +return result ; +} + +static void ieee80211_rx_mgmt_auth ( struct ieee80211_sub_if_data * sdata , +struct ieee80211_mgmt * mgmt , size_t len ) +{ +struct ieee80211_if_managed * ifmgd = & sdata -> u . mgd ; +u16 auth_alg , auth_transaction , status_code ; +struct ieee80211_event event = { +. type = mlme_event , +. u . mlme . data = auth_event , +} ; +struct ieee80211_prep_tx_info info = { +. subtype = ieee80211_stype_auth , +} ; + +sdata_assert_lock ( sdata ) ; + +if ( len < 24 + 6 ) +return ; + +if ( ! ifmgd -> auth_data || ifmgd -> auth_data -> done ) +return ; + +if ( ! ether_addr_equal ( ifmgd -> auth_data -> ap_addr , mgmt -> bssid ) ) +return ; + +auth_alg = le16_to_cpu ( mgmt -> u . auth . auth_alg ) ; +auth_transaction = le16_to_cpu ( mgmt -> u . auth . auth_transaction ) ; +status_code = le16_to_cpu ( mgmt -> u . auth . status_code ) ; + +if ( auth_alg != ifmgd -> auth_data -> algorithm || +( auth_alg != wlan_auth_sae && +auth_transaction != ifmgd -> auth_data -> expected_transaction ) || +( auth_alg == wlan_auth_sae && +( auth_transaction < ifmgd -> auth_data -> expected_transaction || +auth_transaction > 2 ) ) ) { +sdata_info ( sdata , "%pm unexpected authentication state: alg %d (expected %d) transact %d (expected %d)\n" , +mgmt -> sa , auth_alg , ifmgd -> auth_data -> algorithm , +auth_transaction , +ifmgd -> auth_data -> expected_transaction ) ; +goto notify_driver ; +} + +if ( status_code != wlan_status_success ) { +cfg80211_rx_mlme_mgmt ( sdata -> dev , ( u8 * ) mgmt , len ) ; + +if ( auth_alg == wlan_auth_sae && +( status_code == wlan_status_anti_clog_required || +( auth_transaction == 1 && +( status_code == wlan_status_sae_hash_to_element || +status_code == wlan_status_sae_pk ) ) ) ) { + +ifmgd -> auth_data -> waiting = true ; +ifmgd -> auth_data -> timeout = +jiffies + ieee80211_auth_wait_sae_retry ; +ifmgd -> auth_data -> timeout_started = true ; +run_again ( sdata , ifmgd -> auth_data -> timeout ) ; +goto notify_driver ; +} + +sdata_info ( sdata , "%pm denied authentication (status %d)\n" , +mgmt -> sa , status_code ) ; +ieee80211_destroy_auth_data ( sdata , false ) ; +event . u . mlme . status = mlme_denied ; +event . u . mlme . reason = status_code ; +drv_event_callback ( sdata -> local , sdata , & event ) ; +goto notify_driver ; +} + +switch ( ifmgd -> auth_data -> algorithm ) { +case wlan_auth_open : +case wlan_auth_leap : +case wlan_auth_ft : +case wlan_auth_sae : +case wlan_auth_fils_sk : +case wlan_auth_fils_sk_pfs : +case wlan_auth_fils_pk : +break ; +case wlan_auth_shared_key : +if ( ifmgd -> auth_data -> expected_transaction != 4 ) { +ieee80211_auth_challenge ( sdata , mgmt , len ) ; + +return ; +} +break ; +default : +warn_once ( 1 , "invalid auth alg %d" , +ifmgd -> auth_data -> algorithm ) ; +goto notify_driver ; +} + +event . u . mlme . status = mlme_success ; +info . success = 1 ; +drv_event_callback ( sdata -> local , sdata , & event ) ; +if ( ifmgd -> auth_data -> algorithm != wlan_auth_sae || +( auth_transaction == 2 && +ifmgd -> auth_data -> expected_transaction == 2 ) ) { +if ( ! ieee80211_mark_sta_auth ( sdata ) ) +return ; +} else if ( ifmgd -> auth_data -> algorithm == wlan_auth_sae && +auth_transaction == 2 ) { +sdata_info ( sdata , "sae peer confirmed\n" ) ; +ifmgd -> auth_data -> peer_confirmed = true ; +} + +cfg80211_rx_mlme_mgmt ( sdata -> dev , ( u8 * ) mgmt , len ) ; +notify_driver : +drv_mgd_complete_tx ( sdata -> local , sdata , & info ) ; +} + + + + +const char * ieee80211_get_reason_code_string ( u16 reason_code ) +{ +switch ( reason_code ) { +case_wlan ( unspecified ) ; +case_wlan ( prev_auth_not_valid ) ; +case_wlan ( deauth_leaving ) ; +case_wlan ( disassoc_due_to_inactivity ) ; +case_wlan ( disassoc_ap_busy ) ; +case_wlan ( class2_frame_from_nonauth_sta ) ; +case_wlan ( class3_frame_from_nonassoc_sta ) ; +case_wlan ( disassoc_sta_has_left ) ; +case_wlan ( sta_req_assoc_without_auth ) ; +case_wlan ( disassoc_bad_power ) ; +case_wlan ( disassoc_bad_supp_chan ) ; +case_wlan ( invalid_ie ) ; +case_wlan ( mic_failure ) ; +case_wlan ( 4 way_handshake_timeout ) ; +case_wlan ( group_key_handshake_timeout ) ; +case_wlan ( ie_different ) ; +case_wlan ( invalid_group_cipher ) ; +case_wlan ( invalid_pairwise_cipher ) ; +case_wlan ( invalid_akmp ) ; +case_wlan ( unsupp_rsn_version ) ; +case_wlan ( invalid_rsn_ie_cap ) ; +case_wlan ( ieee8021x_failed ) ; +case_wlan ( cipher_suite_rejected ) ; +case_wlan ( disassoc_unspecified_qos ) ; +case_wlan ( disassoc_qap_no_bandwidth ) ; +case_wlan ( disassoc_low_ack ) ; +case_wlan ( disassoc_qap_exceed_txop ) ; +case_wlan ( qsta_leave_qbss ) ; +case_wlan ( qsta_not_use ) ; +case_wlan ( qsta_require_setup ) ; +case_wlan ( qsta_timeout ) ; +case_wlan ( qsta_cipher_not_supp ) ; +case_wlan ( mesh_peer_canceled ) ; +case_wlan ( mesh_max_peers ) ; +case_wlan ( mesh_config ) ; +case_wlan ( mesh_close ) ; +case_wlan ( mesh_max_retries ) ; +case_wlan ( mesh_confirm_timeout ) ; +case_wlan ( mesh_invalid_gtk ) ; +case_wlan ( mesh_inconsistent_param ) ; +case_wlan ( mesh_invalid_security ) ; +case_wlan ( mesh_path_error ) ; +case_wlan ( mesh_path_noforward ) ; +case_wlan ( mesh_path_dest_unreachable ) ; +case_wlan ( mac_exists_in_mbss ) ; +case_wlan ( mesh_chan_regulatory ) ; +case_wlan ( mesh_chan ) ; +default : return "<unknown>" ; +} +} + +static void ieee80211_rx_mgmt_deauth ( struct ieee80211_sub_if_data * sdata , +struct ieee80211_mgmt * mgmt , size_t len ) +{ +struct ieee80211_if_managed * ifmgd = & sdata -> u . mgd ; +u16 reason_code = le16_to_cpu ( mgmt -> u . deauth . reason_code ) ; + +sdata_assert_lock ( sdata ) ; + +if ( len < 24 + 2 ) +return ; + +if ( ! ether_addr_equal ( mgmt -> bssid , mgmt -> sa ) ) { +ieee80211_tdls_handle_disconnect ( sdata , mgmt -> sa , reason_code ) ; +return ; +} + +if ( ifmgd -> associated && +ether_addr_equal ( mgmt -> bssid , sdata -> vif . cfg . ap_addr ) ) { +sdata_info ( sdata , "deauthenticated from %pm (reason: %u=%s)\n" , +sdata -> vif . cfg . ap_addr , reason_code , +ieee80211_get_reason_code_string ( reason_code ) ) ; + +ieee80211_set_disassoc ( sdata , 0 , 0 , false , null ) ; + +ieee80211_report_disconnect ( sdata , ( u8 * ) mgmt , len , false , +reason_code , false ) ; +return ; +} + +if ( ifmgd -> assoc_data && +ether_addr_equal ( mgmt -> bssid , ifmgd -> assoc_data -> ap_addr ) ) { +sdata_info ( sdata , +"deauthenticated from %pm while associating (reason: %u=%s)\n" , +ifmgd -> assoc_data -> ap_addr , reason_code , +ieee80211_get_reason_code_string ( reason_code ) ) ; + +ieee80211_destroy_assoc_data ( sdata , assoc_abandon ) ; + +cfg80211_rx_mlme_mgmt ( sdata -> dev , ( u8 * ) mgmt , len ) ; +return ; +} +} + + +static void ieee80211_rx_mgmt_disassoc ( struct ieee80211_sub_if_data * sdata , +struct ieee80211_mgmt * mgmt , size_t len ) +{ +struct ieee80211_if_managed * ifmgd = & sdata -> u . mgd ; +u16 reason_code ; + +sdata_assert_lock ( sdata ) ; + +if ( len < 24 + 2 ) +return ; + +if ( ! ifmgd -> associated || +! ether_addr_equal ( mgmt -> bssid , sdata -> vif . cfg . ap_addr ) ) +return ; + +reason_code = le16_to_cpu ( mgmt -> u . disassoc . reason_code ) ; + +if ( ! ether_addr_equal ( mgmt -> bssid , mgmt -> sa ) ) { +ieee80211_tdls_handle_disconnect ( sdata , mgmt -> sa , reason_code ) ; +return ; +} + +sdata_info ( sdata , "disassociated from %pm (reason: %u=%s)\n" , +sdata -> vif . cfg . ap_addr , reason_code , +ieee80211_get_reason_code_string ( reason_code ) ) ; + +ieee80211_set_disassoc ( sdata , 0 , 0 , false , null ) ; + +ieee80211_report_disconnect ( sdata , ( u8 * ) mgmt , len , false , reason_code , +false ) ; +} + +static void ieee80211_get_rates ( struct ieee80211_supported_band * sband , +u8 * supp_rates , unsigned int supp_rates_len , +u32 * rates , u32 * basic_rates , +bool * have_higher_than_11mbit , +int * min_rate , int * min_rate_index , +int shift ) +{ +int i , j ; + +for ( i = 0 ; i < supp_rates_len ; i ++ ) { +int rate = supp_rates [ i ] & 0x7f ; +bool is_basic = ! ! ( supp_rates [ i ] & 0x80 ) ; + +if ( ( rate * 5 * ( 1 << shift ) ) > 110 ) +* have_higher_than_11mbit = true ; + + + + + + + + + +if ( supp_rates [ i ] == ( 0x80 | bss_membership_selector_ht_phy ) || +supp_rates [ i ] == ( 0x80 | bss_membership_selector_vht_phy ) || +supp_rates [ i ] == ( 0x80 | bss_membership_selector_he_phy ) || +supp_rates [ i ] == ( 0x80 | bss_membership_selector_sae_h2e ) ) +continue ; + +for ( j = 0 ; j < sband -> n_bitrates ; j ++ ) { +struct ieee80211_rate * br ; +int brate ; + +br = & sband -> bitrates [ j ] ; + +brate = div_round_up ( br -> bitrate , ( 1 << shift ) * 5 ) ; +if ( brate == rate ) { +* rates |= bit ( j ) ; +if ( is_basic ) +* basic_rates |= bit ( j ) ; +if ( ( rate * 5 ) < * min_rate ) { +* min_rate = rate * 5 ; +* min_rate_index = j ; +} +break ; +} +} +} +} + +static bool ieee80211_twt_req_supported ( struct ieee80211_sub_if_data * sdata , +struct ieee80211_supported_band * sband , +const struct link_sta_info * link_sta , +const struct ieee802_11_elems * elems ) +{ +const struct ieee80211_sta_he_cap * own_he_cap = +ieee80211_get_he_iftype_cap ( sband , +ieee80211_vif_type_p2p ( & sdata -> vif ) ) ; + +if ( elems -> ext_capab_len < 10 ) +return false ; + +if ( ! ( elems -> ext_capab [ 9 ] & wlan_ext_capa10_twt_responder_support ) ) +return false ; + +return link_sta -> pub -> he_cap . he_cap_elem . mac_cap_info [ 0 ] & +ieee80211_he_mac_cap0_twt_res && +own_he_cap && +( own_he_cap -> he_cap_elem . mac_cap_info [ 0 ] & +ieee80211_he_mac_cap0_twt_req ) ; +} + +static int ieee80211_recalc_twt_req ( struct ieee80211_sub_if_data * sdata , +struct ieee80211_supported_band * sband , +struct ieee80211_link_data * link , +struct link_sta_info * link_sta , +struct ieee802_11_elems * elems ) +{ +bool twt = ieee80211_twt_req_supported ( sdata , sband , link_sta , elems ) ; + +if ( link -> conf -> twt_requester != twt ) { +link -> conf -> twt_requester = twt ; +return bss_changed_twt ; +} +return 0 ; +} + +static bool ieee80211_twt_bcast_support ( struct ieee80211_sub_if_data * sdata , +struct ieee80211_bss_conf * bss_conf , +struct ieee80211_supported_band * sband , +struct link_sta_info * link_sta ) +{ +const struct ieee80211_sta_he_cap * own_he_cap = +ieee80211_get_he_iftype_cap ( sband , +ieee80211_vif_type_p2p ( & sdata -> vif ) ) ; + +return bss_conf -> he_support && +( link_sta -> pub -> he_cap . he_cap_elem . mac_cap_info [ 2 ] & +ieee80211_he_mac_cap2_bcast_twt ) && +own_he_cap && +( own_he_cap -> he_cap_elem . mac_cap_info [ 2 ] & +ieee80211_he_mac_cap2_bcast_twt ) ; +} + +static bool ieee80211_assoc_config_link ( struct ieee80211_link_data * link , +struct link_sta_info * link_sta , +struct cfg80211_bss * cbss , +struct ieee80211_mgmt * mgmt , +const u8 * elem_start , +unsigned int elem_len , +u64 * changed ) +{ +struct ieee80211_sub_if_data * sdata = link -> sdata ; +struct ieee80211_mgd_assoc_data * assoc_data = sdata -> u . mgd . assoc_data ; +struct ieee80211_bss_conf * bss_conf = link -> conf ; +struct ieee80211_local * local = sdata -> local ; +unsigned int link_id = link -> link_id ; +struct ieee80211_elems_parse_params parse_params = { +. start = elem_start , +. len = elem_len , +. link_id = link_id == assoc_data -> assoc_link_id ? - 1 : link_id , +. from_ap = true , +} ; +bool is_6ghz = cbss -> channel -> band == nl80211_band_6ghz ; +bool is_s1g = cbss -> channel -> band == nl80211_band_s1ghz ; +const struct cfg80211_bss_ies * bss_ies = null ; +struct ieee80211_supported_band * sband ; +struct ieee802_11_elems * elems ; +u16 capab_info ; +bool ret ; + +elems = ieee802_11_parse_elems_full ( & parse_params ) ; +if ( ! elems ) +return false ; + +if ( link_id == assoc_data -> assoc_link_id ) { +capab_info = le16_to_cpu ( mgmt -> u . assoc_resp . capab_info ) ; + + + + + +assoc_data -> link [ link_id ] . status = wlan_status_success ; +} else if ( ! elems -> prof ) { +ret = false ; +goto out ; +} else { +const u8 * ptr = elems -> prof -> variable + +elems -> prof -> sta_info_len - 1 ; + + + + + +capab_info = get_unaligned_le16 ( ptr ) ; +assoc_data -> link [ link_id ] . status = get_unaligned_le16 ( ptr + 2 ) ; + +if ( assoc_data -> link [ link_id ] . status != wlan_status_success ) { +link_info ( link , "association response status code=%u\n" , +assoc_data -> link [ link_id ] . status ) ; +ret = true ; +goto out ; +} +} + +if ( ! is_s1g && ! elems -> supp_rates ) { +sdata_info ( sdata , "no supprates element in assocresp\n" ) ; +ret = false ; +goto out ; +} + +link -> u . mgd . tdls_chan_switch_prohibited = +elems -> ext_capab && elems -> ext_capab_len >= 5 && +( elems -> ext_capab [ 4 ] & wlan_ext_capa5_tdls_ch_sw_prohibited ) ; + + + + + + + + +if ( ! is_6ghz && +( ( assoc_data -> wmm && ! elems -> wmm_param ) || +( ! ( link -> u . mgd . conn_flags & ieee80211_conn_disable_ht ) && +( ! elems -> ht_cap_elem || ! elems -> ht_operation ) ) || +( ! ( link -> u . mgd . conn_flags & ieee80211_conn_disable_vht ) && +( ! elems -> vht_cap_elem || ! elems -> vht_operation ) ) ) ) { +const struct cfg80211_bss_ies * ies ; +struct ieee802_11_elems * bss_elems ; + +rcu_read_lock ( ) ; +ies = rcu_dereference ( cbss -> ies ) ; +if ( ies ) +bss_ies = kmemdup ( ies , sizeof ( * ies ) + ies -> len , +gfp_atomic ) ; +rcu_read_unlock ( ) ; +if ( ! bss_ies ) { +ret = false ; +goto out ; +} + +parse_params . start = bss_ies -> data ; +parse_params . len = bss_ies -> len ; +parse_params . bss = cbss ; +bss_elems = ieee802_11_parse_elems_full ( & parse_params ) ; +if ( ! bss_elems ) { +ret = false ; +goto out ; +} + +if ( assoc_data -> wmm && +! elems -> wmm_param && bss_elems -> wmm_param ) { +elems -> wmm_param = bss_elems -> wmm_param ; +sdata_info ( sdata , +"ap bug: wmm param missing from assocresp\n" ) ; +} + + + + + +if ( ! elems -> ht_cap_elem && bss_elems -> ht_cap_elem && +! ( link -> u . mgd . conn_flags & ieee80211_conn_disable_ht ) ) { +elems -> ht_cap_elem = bss_elems -> ht_cap_elem ; +sdata_info ( sdata , +"ap bug: ht capability missing from assocresp\n" ) ; +} +if ( ! elems -> ht_operation && bss_elems -> ht_operation && +! ( link -> u . mgd . conn_flags & ieee80211_conn_disable_ht ) ) { +elems -> ht_operation = bss_elems -> ht_operation ; +sdata_info ( sdata , +"ap bug: ht operation missing from assocresp\n" ) ; +} +if ( ! elems -> vht_cap_elem && bss_elems -> vht_cap_elem && +! ( link -> u . mgd . conn_flags & ieee80211_conn_disable_vht ) ) { +elems -> vht_cap_elem = bss_elems -> vht_cap_elem ; +sdata_info ( sdata , +"ap bug: vht capa missing from assocresp\n" ) ; +} +if ( ! elems -> vht_operation && bss_elems -> vht_operation && +! ( link -> u . mgd . conn_flags & ieee80211_conn_disable_vht ) ) { +elems -> vht_operation = bss_elems -> vht_operation ; +sdata_info ( sdata , +"ap bug: vht operation missing from assocresp\n" ) ; +} + +kfree ( bss_elems ) ; +} + + + + + +if ( ! is_6ghz && ! ( link -> u . mgd . conn_flags & ieee80211_conn_disable_ht ) && +( ! elems -> wmm_param || ! elems -> ht_cap_elem || ! elems -> ht_operation ) ) { +sdata_info ( sdata , +"ht ap is missing wmm params or ht capability/operation\n" ) ; +ret = false ; +goto out ; +} + +if ( ! is_6ghz && ! ( link -> u . mgd . conn_flags & ieee80211_conn_disable_vht ) && +( ! elems -> vht_cap_elem || ! elems -> vht_operation ) ) { +sdata_info ( sdata , +"vht ap is missing vht capability/operation\n" ) ; +ret = false ; +goto out ; +} + +if ( is_6ghz && ! ( link -> u . mgd . conn_flags & ieee80211_conn_disable_he ) && +! elems -> he_6ghz_capa ) { +sdata_info ( sdata , +"he 6 ghz ap is missing he 6 ghz band capability\n" ) ; +ret = false ; +goto out ; +} + +if ( warn_on ( ! link -> conf -> chandef . chan ) ) { +ret = false ; +goto out ; +} +sband = local -> hw . wiphy -> bands [ link -> conf -> chandef . chan -> band ] ; + +if ( ! ( link -> u . mgd . conn_flags & ieee80211_conn_disable_he ) && +( ! elems -> he_cap || ! elems -> he_operation ) ) { +sdata_info ( sdata , +"he ap is missing he capability/operation\n" ) ; +ret = false ; +goto out ; +} + + +if ( elems -> ht_cap_elem && ! ( link -> u . mgd . conn_flags & ieee80211_conn_disable_ht ) ) +ieee80211_ht_cap_ie_to_sta_ht_cap ( sdata , sband , +elems -> ht_cap_elem , +link_sta ) ; + +if ( elems -> vht_cap_elem && ! ( link -> u . mgd . conn_flags & ieee80211_conn_disable_vht ) ) +ieee80211_vht_cap_ie_to_sta_vht_cap ( sdata , sband , +elems -> vht_cap_elem , +link_sta ) ; + +if ( elems -> he_operation && ! ( link -> u . mgd . conn_flags & ieee80211_conn_disable_he ) && +elems -> he_cap ) { +ieee80211_he_cap_ie_to_sta_he_cap ( sdata , sband , +elems -> he_cap , +elems -> he_cap_len , +elems -> he_6ghz_capa , +link_sta ) ; + +bss_conf -> he_support = link_sta -> pub -> he_cap . has_he ; +if ( elems -> rsnx && elems -> rsnx_len && +( elems -> rsnx [ 0 ] & wlan_rsnx_capa_protected_twt ) && +wiphy_ext_feature_isset ( local -> hw . wiphy , +nl80211_ext_feature_protected_twt ) ) +bss_conf -> twt_protected = true ; +else +bss_conf -> twt_protected = false ; + +* changed |= ieee80211_recalc_twt_req ( sdata , sband , link , +link_sta , elems ) ; + +if ( elems -> eht_operation && elems -> eht_cap && +! ( link -> u . mgd . conn_flags & ieee80211_conn_disable_eht ) ) { +ieee80211_eht_cap_ie_to_sta_eht_cap ( sdata , sband , +elems -> he_cap , +elems -> he_cap_len , +elems -> eht_cap , +elems -> eht_cap_len , +link_sta ) ; + +bss_conf -> eht_support = link_sta -> pub -> eht_cap . has_eht ; +* changed |= bss_changed_eht_puncturing ; +} else { +bss_conf -> eht_support = false ; +} +} else { +bss_conf -> he_support = false ; +bss_conf -> twt_requester = false ; +bss_conf -> twt_protected = false ; +bss_conf -> eht_support = false ; +} + +bss_conf -> twt_broadcast = +ieee80211_twt_bcast_support ( sdata , bss_conf , sband , link_sta ) ; + +if ( bss_conf -> he_support ) { +bss_conf -> he_bss_color . color = +le32_get_bits ( elems -> he_operation -> he_oper_params , +ieee80211_he_operation_bss_color_mask ) ; +bss_conf -> he_bss_color . partial = +le32_get_bits ( elems -> he_operation -> he_oper_params , +ieee80211_he_operation_partial_bss_color ) ; +bss_conf -> he_bss_color . enabled = +! le32_get_bits ( elems -> he_operation -> he_oper_params , +ieee80211_he_operation_bss_color_disabled ) ; + +if ( bss_conf -> he_bss_color . enabled ) +* changed |= bss_changed_he_bss_color ; + +bss_conf -> htc_trig_based_pkt_ext = +le32_get_bits ( elems -> he_operation -> he_oper_params , +ieee80211_he_operation_dflt_pe_duration_mask ) ; +bss_conf -> frame_time_rts_th = +le32_get_bits ( elems -> he_operation -> he_oper_params , +ieee80211_he_operation_rts_threshold_mask ) ; + +bss_conf -> uora_exists = ! ! elems -> uora_element ; +if ( elems -> uora_element ) +bss_conf -> uora_ocw_range = elems -> uora_element [ 0 ] ; + +ieee80211_he_op_ie_to_bss_conf ( & sdata -> vif , elems -> he_operation ) ; +ieee80211_he_spr_ie_to_bss_conf ( & sdata -> vif , elems -> he_spr ) ; + +} + +if ( cbss -> transmitted_bss ) { +bss_conf -> nontransmitted = true ; +ether_addr_copy ( bss_conf -> transmitter_bssid , +cbss -> transmitted_bss -> bssid ) ; +bss_conf -> bssid_indicator = cbss -> max_bssid_indicator ; +bss_conf -> bssid_index = cbss -> bssid_index ; +} + + + + + + + + + + + + + +if ( elems -> opmode_notif && +! ( * elems -> opmode_notif & ieee80211_opmode_notif_rx_nss_type_bf ) ) { +u8 nss ; + +nss = * elems -> opmode_notif & ieee80211_opmode_notif_rx_nss_mask ; +nss >>= ieee80211_opmode_notif_rx_nss_shift ; +nss += 1 ; +link_sta -> pub -> rx_nss = nss ; +} + + + + + + + +link -> u . mgd . wmm_last_param_set = - 1 ; +link -> u . mgd . mu_edca_last_param_set = - 1 ; + +if ( link -> u . mgd . disable_wmm_tracking ) { +ieee80211_set_wmm_default ( link , false , false ) ; +} else if ( ! ieee80211_sta_wmm_params ( local , link , elems -> wmm_param , +elems -> wmm_param_len , +elems -> mu_edca_param_set ) ) { + +ieee80211_set_wmm_default ( link , false , true ) ; + + + + + + + +link -> u . mgd . disable_wmm_tracking = true ; +} + +if ( elems -> max_idle_period_ie ) { +bss_conf -> max_idle_period = +le16_to_cpu ( elems -> max_idle_period_ie -> max_idle_period ) ; +bss_conf -> protected_keep_alive = +! ! ( elems -> max_idle_period_ie -> idle_options & +wlan_idle_options_protected_keep_alive ) ; +* changed |= bss_changed_keep_alive ; +} else { +bss_conf -> max_idle_period = 0 ; +bss_conf -> protected_keep_alive = false ; +} + + + +bss_conf -> assoc_capability = capab_info ; + +ret = true ; +out : +kfree ( elems ) ; +kfree ( bss_ies ) ; +return ret ; +} + +static int ieee80211_mgd_setup_link_sta ( struct ieee80211_link_data * link , +struct sta_info * sta , +struct link_sta_info * link_sta , +struct cfg80211_bss * cbss ) +{ +struct ieee80211_sub_if_data * sdata = link -> sdata ; +struct ieee80211_local * local = sdata -> local ; +struct ieee80211_bss * bss = ( void * ) cbss -> priv ; +u32 rates = 0 , basic_rates = 0 ; +bool have_higher_than_11mbit = false ; +int min_rate = int_max , min_rate_index = - 1 ; + +int shift = ieee80211_vif_get_shift ( & sdata -> vif ) ; +struct ieee80211_supported_band * sband ; + +memcpy ( link_sta -> addr , cbss -> bssid , eth_alen ) ; +memcpy ( link_sta -> pub -> addr , cbss -> bssid , eth_alen ) ; + + +if ( cbss -> channel -> band == nl80211_band_s1ghz ) { +ieee80211_s1g_sta_rate_init ( sta ) ; +return 0 ; +} + +sband = local -> hw . wiphy -> bands [ cbss -> channel -> band ] ; + +ieee80211_get_rates ( sband , bss -> supp_rates , bss -> supp_rates_len , +& rates , & basic_rates , & have_higher_than_11mbit , +& min_rate , & min_rate_index , shift ) ; + + + + + + + + + + + +if ( min_rate_index < 0 ) { +link_info ( link , "no legacy rates in association response\n" ) ; +return - einval ; +} else if ( ! basic_rates ) { +link_info ( link , "no basic rates, using min rate instead\n" ) ; +basic_rates = bit ( min_rate_index ) ; +} + +if ( rates ) +link_sta -> pub -> supp_rates [ cbss -> channel -> band ] = rates ; +else +link_info ( link , "no rates found, keeping mandatory only\n" ) ; + +link -> conf -> basic_rates = basic_rates ; + + +link -> operating_11g_mode = sband -> band == nl80211_band_2ghz && +have_higher_than_11mbit ; + +return 0 ; +} + +static u8 ieee80211_max_rx_chains ( struct ieee80211_link_data * link , +struct cfg80211_bss * cbss ) +{ +struct ieee80211_he_mcs_nss_supp * he_mcs_nss_supp ; +const struct element * ht_cap_elem , * vht_cap_elem ; +const struct cfg80211_bss_ies * ies ; +const struct ieee80211_ht_cap * ht_cap ; +const struct ieee80211_vht_cap * vht_cap ; +const struct ieee80211_he_cap_elem * he_cap ; +const struct element * he_cap_elem ; +u16 mcs_80_map , mcs_160_map ; +int i , mcs_nss_size ; +bool support_160 ; +u8 chains = 1 ; + +if ( link -> u . mgd . conn_flags & ieee80211_conn_disable_ht ) +return chains ; + +ht_cap_elem = ieee80211_bss_get_elem ( cbss , wlan_eid_ht_capability ) ; +if ( ht_cap_elem && ht_cap_elem -> datalen >= sizeof ( * ht_cap ) ) { +ht_cap = ( void * ) ht_cap_elem -> data ; +chains = ieee80211_mcs_to_chains ( & ht_cap -> mcs ) ; + + + + +} + +if ( link -> u . mgd . conn_flags & ieee80211_conn_disable_vht ) +return chains ; + +vht_cap_elem = ieee80211_bss_get_elem ( cbss , wlan_eid_vht_capability ) ; +if ( vht_cap_elem && vht_cap_elem -> datalen >= sizeof ( * vht_cap ) ) { +u8 nss ; +u16 tx_mcs_map ; + +vht_cap = ( void * ) vht_cap_elem -> data ; +tx_mcs_map = le16_to_cpu ( vht_cap -> supp_mcs . tx_mcs_map ) ; +for ( nss = 8 ; nss > 0 ; nss -- ) { +if ( ( ( tx_mcs_map >> ( 2 * ( nss - 1 ) ) ) & 3 ) != +ieee80211_vht_mcs_not_supported ) +break ; +} + +chains = max ( chains , nss ) ; +} + +if ( link -> u . mgd . conn_flags & ieee80211_conn_disable_he ) +return chains ; + +ies = rcu_dereference ( cbss -> ies ) ; +he_cap_elem = cfg80211_find_ext_elem ( wlan_eid_ext_he_capability , +ies -> data , ies -> len ) ; + +if ( ! he_cap_elem || he_cap_elem -> datalen < sizeof ( * he_cap ) ) +return chains ; + + +he_cap = ( void * ) ( he_cap_elem -> data + 1 ) ; +mcs_nss_size = ieee80211_he_mcs_nss_size ( he_cap ) ; + + +if ( he_cap_elem -> datalen < 1 + mcs_nss_size + sizeof ( * he_cap ) ) +return chains ; + + +he_mcs_nss_supp = ( void * ) ( he_cap + 1 ) ; + +mcs_80_map = le16_to_cpu ( he_mcs_nss_supp -> tx_mcs_80 ) ; + +for ( i = 7 ; i >= 0 ; i -- ) { +u8 mcs_80 = mcs_80_map >> ( 2 * i ) & 3 ; + +if ( mcs_80 != ieee80211_vht_mcs_not_supported ) { +chains = max_t ( u8 , chains , i + 1 ) ; +break ; +} +} + +support_160 = he_cap -> phy_cap_info [ 0 ] & +ieee80211_he_phy_cap0_channel_width_set_160mhz_in_5g ; + +if ( ! support_160 ) +return chains ; + +mcs_160_map = le16_to_cpu ( he_mcs_nss_supp -> tx_mcs_160 ) ; +for ( i = 7 ; i >= 0 ; i -- ) { +u8 mcs_160 = mcs_160_map >> ( 2 * i ) & 3 ; + +if ( mcs_160 != ieee80211_vht_mcs_not_supported ) { +chains = max_t ( u8 , chains , i + 1 ) ; +break ; +} +} + +return chains ; +} + +static bool +ieee80211_verify_peer_he_mcs_support ( struct ieee80211_sub_if_data * sdata , +const struct cfg80211_bss_ies * ies , +const struct ieee80211_he_operation * he_op ) +{ +const struct element * he_cap_elem ; +const struct ieee80211_he_cap_elem * he_cap ; +struct ieee80211_he_mcs_nss_supp * he_mcs_nss_supp ; +u16 mcs_80_map_tx , mcs_80_map_rx ; +u16 ap_min_req_set ; +int mcs_nss_size ; +int nss ; + +he_cap_elem = cfg80211_find_ext_elem ( wlan_eid_ext_he_capability , +ies -> data , ies -> len ) ; + +if ( ! he_cap_elem ) +return false ; + + +if ( he_cap_elem -> datalen < 1 + sizeof ( * he_cap ) ) { +sdata_info ( sdata , +"invalid he elem, disable he\n" ) ; +return false ; +} + + +he_cap = ( void * ) ( he_cap_elem -> data + 1 ) ; +mcs_nss_size = ieee80211_he_mcs_nss_size ( he_cap ) ; + + +if ( he_cap_elem -> datalen < 1 + sizeof ( * he_cap ) + mcs_nss_size ) { +sdata_info ( sdata , +"invalid he elem with nss size, disable he\n" ) ; +return false ; +} + + +he_mcs_nss_supp = ( void * ) ( he_cap + 1 ) ; + +mcs_80_map_tx = le16_to_cpu ( he_mcs_nss_supp -> tx_mcs_80 ) ; +mcs_80_map_rx = le16_to_cpu ( he_mcs_nss_supp -> rx_mcs_80 ) ; + + + + + + + + + +if ( ( mcs_80_map_tx & 0x3 ) == ieee80211_he_mcs_not_supported || +( mcs_80_map_rx & 0x3 ) == ieee80211_he_mcs_not_supported ) { +sdata_info ( sdata , +"missing mandatory rates for 1 nss, rx 0x%x, tx 0x%x, disable he\n" , +mcs_80_map_tx , mcs_80_map_rx ) ; +return false ; +} + +if ( ! he_op ) +return true ; + +ap_min_req_set = le16_to_cpu ( he_op -> he_mcs_nss_set ) ; + + + + + + +if ( ! ap_min_req_set ) +return true ; + + + + + + + + + + + + + + +for ( nss = 8 ; nss > 0 ; nss -- ) { +u8 ap_op_val = ( ap_min_req_set >> ( 2 * ( nss - 1 ) ) ) & 3 ; +u8 ap_rx_val ; +u8 ap_tx_val ; + +if ( ap_op_val == ieee80211_he_mcs_not_supported ) +continue ; + +ap_rx_val = ( mcs_80_map_rx >> ( 2 * ( nss - 1 ) ) ) & 3 ; +ap_tx_val = ( mcs_80_map_tx >> ( 2 * ( nss - 1 ) ) ) & 3 ; + +if ( ap_rx_val == ieee80211_he_mcs_not_supported || +ap_tx_val == ieee80211_he_mcs_not_supported || +ap_rx_val < ap_op_val || ap_tx_val < ap_op_val ) { +sdata_info ( sdata , +"invalid rates for %d nss, rx %d, tx %d oper %d, disable he\n" , +nss , ap_rx_val , ap_rx_val , ap_op_val ) ; +return false ; +} +} + +return true ; +} + +static bool +ieee80211_verify_sta_he_mcs_support ( struct ieee80211_sub_if_data * sdata , +struct ieee80211_supported_band * sband , +const struct ieee80211_he_operation * he_op ) +{ +const struct ieee80211_sta_he_cap * sta_he_cap = +ieee80211_get_he_iftype_cap ( sband , +ieee80211_vif_type_p2p ( & sdata -> vif ) ) ; +u16 ap_min_req_set ; +int i ; + +if ( ! sta_he_cap || ! he_op ) +return false ; + +ap_min_req_set = le16_to_cpu ( he_op -> he_mcs_nss_set ) ; + + + + + + +if ( ! ap_min_req_set ) +return true ; + + +for ( i = 0 ; i < 3 ; i ++ ) { +const struct ieee80211_he_mcs_nss_supp * sta_mcs_nss_supp = +& sta_he_cap -> he_mcs_nss_supp ; +u16 sta_mcs_map_rx = +le16_to_cpu ( ( ( __le16 * ) sta_mcs_nss_supp ) [ 2 * i ] ) ; +u16 sta_mcs_map_tx = +le16_to_cpu ( ( ( __le16 * ) sta_mcs_nss_supp ) [ 2 * i + 1 ] ) ; +u8 nss ; +bool verified = true ; + + + + + + + + + + +for ( nss = 8 ; nss > 0 ; nss -- ) { +u8 sta_rx_val = ( sta_mcs_map_rx >> ( 2 * ( nss - 1 ) ) ) & 3 ; +u8 sta_tx_val = ( sta_mcs_map_tx >> ( 2 * ( nss - 1 ) ) ) & 3 ; +u8 ap_val = ( ap_min_req_set >> ( 2 * ( nss - 1 ) ) ) & 3 ; + +if ( ap_val == ieee80211_he_mcs_not_supported ) +continue ; + + + + + + + + + + + + + +if ( sta_rx_val == ieee80211_he_mcs_not_supported || +sta_tx_val == ieee80211_he_mcs_not_supported || +( ap_val > sta_rx_val ) || ( ap_val > sta_tx_val ) ) { +verified = false ; +break ; +} +} + +if ( verified ) +return true ; +} + + +return false ; +} + +static int ieee80211_prep_channel ( struct ieee80211_sub_if_data * sdata , +struct ieee80211_link_data * link , +struct cfg80211_bss * cbss , +ieee80211_conn_flags_t * conn_flags ) +{ +struct ieee80211_local * local = sdata -> local ; +const struct ieee80211_ht_cap * ht_cap = null ; +const struct ieee80211_ht_operation * ht_oper = null ; +const struct ieee80211_vht_operation * vht_oper = null ; +const struct ieee80211_he_operation * he_oper = null ; +const struct ieee80211_eht_operation * eht_oper = null ; +const struct ieee80211_s1g_oper_ie * s1g_oper = null ; +struct ieee80211_supported_band * sband ; +struct cfg80211_chan_def chandef ; +bool is_6ghz = cbss -> channel -> band == nl80211_band_6ghz ; +bool is_5ghz = cbss -> channel -> band == nl80211_band_5ghz ; +struct ieee80211_bss * bss = ( void * ) cbss -> priv ; +struct ieee80211_elems_parse_params parse_params = { +. bss = cbss , +. link_id = - 1 , +. from_ap = true , +} ; +struct ieee802_11_elems * elems ; +const struct cfg80211_bss_ies * ies ; +int ret ; +u32 i ; +bool have_80mhz ; + +rcu_read_lock ( ) ; + +ies = rcu_dereference ( cbss -> ies ) ; +parse_params . start = ies -> data ; +parse_params . len = ies -> len ; +elems = ieee802_11_parse_elems_full ( & parse_params ) ; +if ( ! elems ) { +rcu_read_unlock ( ) ; +return - enomem ; +} + +sband = local -> hw . wiphy -> bands [ cbss -> channel -> band ] ; + +* conn_flags &= ~ ( ieee80211_conn_disable_40mhz | +ieee80211_conn_disable_80p80mhz | +ieee80211_conn_disable_160mhz ) ; + + +if ( ! sband -> ht_cap . ht_supported && ! is_6ghz ) { +mlme_dbg ( sdata , "ht not supported, disabling ht/vht/he/eht\n" ) ; +* conn_flags |= ieee80211_conn_disable_ht ; +* conn_flags |= ieee80211_conn_disable_vht ; +* conn_flags |= ieee80211_conn_disable_he ; +* conn_flags |= ieee80211_conn_disable_eht ; +} + +if ( ! sband -> vht_cap . vht_supported && is_5ghz ) { +mlme_dbg ( sdata , "vht not supported, disabling vht/he/eht\n" ) ; +* conn_flags |= ieee80211_conn_disable_vht ; +* conn_flags |= ieee80211_conn_disable_he ; +* conn_flags |= ieee80211_conn_disable_eht ; +} + +if ( ! ieee80211_get_he_iftype_cap ( sband , +ieee80211_vif_type_p2p ( & sdata -> vif ) ) ) { +mlme_dbg ( sdata , "he not supported, disabling he and eht\n" ) ; +* conn_flags |= ieee80211_conn_disable_he ; +* conn_flags |= ieee80211_conn_disable_eht ; +} + +if ( ! ieee80211_get_eht_iftype_cap ( sband , +ieee80211_vif_type_p2p ( & sdata -> vif ) ) ) { +mlme_dbg ( sdata , "eht not supported, disabling eht\n" ) ; +* conn_flags |= ieee80211_conn_disable_eht ; +} + +if ( ! ( * conn_flags & ieee80211_conn_disable_ht ) && ! is_6ghz ) { +ht_oper = elems -> ht_operation ; +ht_cap = elems -> ht_cap_elem ; + +if ( ! ht_cap ) { +* conn_flags |= ieee80211_conn_disable_ht ; +ht_oper = null ; +} +} + +if ( ! ( * conn_flags & ieee80211_conn_disable_vht ) && ! is_6ghz ) { +vht_oper = elems -> vht_operation ; +if ( vht_oper && ! ht_oper ) { +vht_oper = null ; +sdata_info ( sdata , +"ap advertised vht without ht, disabling ht/vht/he\n" ) ; +* conn_flags |= ieee80211_conn_disable_ht ; +* conn_flags |= ieee80211_conn_disable_vht ; +* conn_flags |= ieee80211_conn_disable_he ; +* conn_flags |= ieee80211_conn_disable_eht ; +} + +if ( ! elems -> vht_cap_elem ) { +* conn_flags |= ieee80211_conn_disable_vht ; +vht_oper = null ; +} +} + +if ( ! ( * conn_flags & ieee80211_conn_disable_he ) ) { +he_oper = elems -> he_operation ; + +if ( link && is_6ghz ) { +struct ieee80211_bss_conf * bss_conf ; +u8 j = 0 ; + +bss_conf = link -> conf ; + +if ( elems -> pwr_constr_elem ) +bss_conf -> pwr_reduction = * elems -> pwr_constr_elem ; + +build_bug_on ( array_size ( bss_conf -> tx_pwr_env ) != +array_size ( elems -> tx_pwr_env ) ) ; + +for ( i = 0 ; i < elems -> tx_pwr_env_num ; i ++ ) { +if ( elems -> tx_pwr_env_len [ i ] > +sizeof ( bss_conf -> tx_pwr_env [ j ] ) ) +continue ; + +bss_conf -> tx_pwr_env_num ++ ; +memcpy ( & bss_conf -> tx_pwr_env [ j ] , elems -> tx_pwr_env [ i ] , +elems -> tx_pwr_env_len [ i ] ) ; +j ++ ; +} +} + +if ( ! ieee80211_verify_peer_he_mcs_support ( sdata , ies , he_oper ) || +! ieee80211_verify_sta_he_mcs_support ( sdata , sband , he_oper ) ) +* conn_flags |= ieee80211_conn_disable_he | +ieee80211_conn_disable_eht ; +} + + + + + + + +if ( ! ( * conn_flags & +( ieee80211_conn_disable_he | +ieee80211_conn_disable_eht ) ) && +he_oper ) { +const struct cfg80211_bss_ies * cbss_ies ; +const u8 * eht_oper_ie ; + +cbss_ies = rcu_dereference ( cbss -> ies ) ; +eht_oper_ie = cfg80211_find_ext_ie ( wlan_eid_ext_eht_operation , +cbss_ies -> data , cbss_ies -> len ) ; +if ( eht_oper_ie && eht_oper_ie [ 1 ] >= +1 + sizeof ( struct ieee80211_eht_operation ) ) +eht_oper = ( void * ) ( eht_oper_ie + 3 ) ; +else +eht_oper = null ; +} + + +have_80mhz = false ; +for ( i = 0 ; i < sband -> n_channels ; i ++ ) { +if ( sband -> channels [ i ] . flags & ( ieee80211_chan_disabled | +ieee80211_chan_no_80mhz ) ) +continue ; + +have_80mhz = true ; +break ; +} + +if ( ! have_80mhz ) { +sdata_info ( sdata , "80 mhz not supported, disabling vht\n" ) ; +* conn_flags |= ieee80211_conn_disable_vht ; +} + +if ( sband -> band == nl80211_band_s1ghz ) { +s1g_oper = elems -> s1g_oper ; +if ( ! s1g_oper ) +sdata_info ( sdata , +"ap missing s1g operation element?\n" ) ; +} + +* conn_flags |= +ieee80211_determine_chantype ( sdata , link , * conn_flags , +sband , +cbss -> channel , +bss -> vht_cap_info , +ht_oper , vht_oper , +he_oper , eht_oper , +s1g_oper , +& chandef , false ) ; + +if ( link ) +link -> needed_rx_chains = +min ( ieee80211_max_rx_chains ( link , cbss ) , +local -> rx_chains ) ; + +rcu_read_unlock ( ) ; + +kfree ( elems ) ; +elems = null ; + +if ( * conn_flags & ieee80211_conn_disable_he && is_6ghz ) { +sdata_info ( sdata , "rejecting non-he 6/7 ghz connection" ) ; +return - einval ; +} + +if ( ! link ) +return 0 ; + + +link -> smps_mode = ieee80211_smps_off ; + +mutex_lock ( & local -> mtx ) ; + + + + + +ret = ieee80211_link_use_channel ( link , & chandef , +ieee80211_chanctx_shared ) ; + + +if ( chandef . width == nl80211_chan_width_5 || +chandef . width == nl80211_chan_width_10 ) +goto out ; + +while ( ret && chandef . width != nl80211_chan_width_20_noht ) { +* conn_flags |= +ieee80211_chandef_downgrade ( & chandef ) ; +ret = ieee80211_link_use_channel ( link , & chandef , +ieee80211_chanctx_shared ) ; +} +out : +mutex_unlock ( & local -> mtx ) ; +return ret ; +} + +static bool ieee80211_get_dtim ( const struct cfg80211_bss_ies * ies , +u8 * dtim_count , u8 * dtim_period ) +{ +const u8 * tim_ie = cfg80211_find_ie ( wlan_eid_tim , ies -> data , ies -> len ) ; +const u8 * idx_ie = cfg80211_find_ie ( wlan_eid_multi_bssid_idx , ies -> data , +ies -> len ) ; +const struct ieee80211_tim_ie * tim = null ; +const struct ieee80211_bssid_index * idx ; +bool valid = tim_ie && tim_ie [ 1 ] >= 2 ; + +if ( valid ) +tim = ( void * ) ( tim_ie + 2 ) ; + +if ( dtim_count ) +* dtim_count = valid ? tim -> dtim_count : 0 ; + +if ( dtim_period ) +* dtim_period = valid ? tim -> dtim_period : 0 ; + + +if ( ! idx_ie || idx_ie [ 1 ] < 3 ) +return valid ; + +idx = ( void * ) ( idx_ie + 2 ) ; + +if ( dtim_count ) +* dtim_count = idx -> dtim_count ; + +if ( dtim_period ) +* dtim_period = idx -> dtim_period ; + +return true ; +} + +static bool ieee80211_assoc_success ( struct ieee80211_sub_if_data * sdata , +struct ieee80211_mgmt * mgmt , +struct ieee802_11_elems * elems , +const u8 * elem_start , unsigned int elem_len ) +{ +struct ieee80211_if_managed * ifmgd = & sdata -> u . mgd ; +struct ieee80211_mgd_assoc_data * assoc_data = ifmgd -> assoc_data ; +struct ieee80211_local * local = sdata -> local ; +unsigned int link_id ; +struct sta_info * sta ; +u64 changed [ ieee80211_mld_max_num_links ] = { } ; +u16 valid_links = 0 ; +int err ; + +mutex_lock ( & sdata -> local -> sta_mtx ) ; + + + + +sta = sta_info_get ( sdata , assoc_data -> ap_addr ) ; +if ( warn_on ( ! sta ) ) +goto out_err ; + +if ( sdata -> vif . valid_links ) { +for ( link_id = 0 ; link_id < ieee80211_mld_max_num_links ; link_id ++ ) { +if ( ! assoc_data -> link [ link_id ] . bss ) +continue ; +valid_links |= bit ( link_id ) ; + +if ( link_id != assoc_data -> assoc_link_id ) { +err = ieee80211_sta_allocate_link ( sta , link_id ) ; +if ( err ) +goto out_err ; +} +} + +ieee80211_vif_set_links ( sdata , valid_links ) ; +} + +for ( link_id = 0 ; link_id < ieee80211_mld_max_num_links ; link_id ++ ) { +struct cfg80211_bss * cbss = assoc_data -> link [ link_id ] . bss ; +struct ieee80211_link_data * link ; +struct link_sta_info * link_sta ; + +if ( ! cbss ) +continue ; + +link = sdata_dereference ( sdata -> link [ link_id ] , sdata ) ; +if ( warn_on ( ! link ) ) +goto out_err ; + +if ( sdata -> vif . valid_links ) +link_info ( link , +"local address %pm, ap link address %pm%s\n" , +link -> conf -> addr , +assoc_data -> link [ link_id ] . bss -> bssid , +link_id == assoc_data -> assoc_link_id ? +" (assoc)" : "" ) ; + +link_sta = rcu_dereference_protected ( sta -> link [ link_id ] , +lockdep_is_held ( & local -> sta_mtx ) ) ; +if ( warn_on ( ! link_sta ) ) +goto out_err ; + +if ( ! link -> u . mgd . have_beacon ) { +const struct cfg80211_bss_ies * ies ; + +rcu_read_lock ( ) ; +ies = rcu_dereference ( cbss -> beacon_ies ) ; +if ( ies ) +link -> u . mgd . have_beacon = true ; +else +ies = rcu_dereference ( cbss -> ies ) ; +ieee80211_get_dtim ( ies , +& link -> conf -> sync_dtim_count , +& link -> u . mgd . dtim_period ) ; +link -> conf -> beacon_int = cbss -> beacon_interval ; +rcu_read_unlock ( ) ; +} + +link -> conf -> dtim_period = link -> u . mgd . dtim_period ? : 1 ; + +if ( link_id != assoc_data -> assoc_link_id ) { +err = ieee80211_prep_channel ( sdata , link , cbss , +& link -> u . mgd . conn_flags ) ; +if ( err ) { +link_info ( link , "prep_channel failed\n" ) ; +goto out_err ; +} +} + +err = ieee80211_mgd_setup_link_sta ( link , sta , link_sta , +assoc_data -> link [ link_id ] . bss ) ; +if ( err ) +goto out_err ; + +if ( ! ieee80211_assoc_config_link ( link , link_sta , +assoc_data -> link [ link_id ] . bss , +mgmt , elem_start , elem_len , +& changed [ link_id ] ) ) +goto out_err ; + +if ( assoc_data -> link [ link_id ] . status != wlan_status_success ) { +valid_links &= ~ bit ( link_id ) ; +ieee80211_sta_remove_link ( sta , link_id ) ; +continue ; +} + +if ( link_id != assoc_data -> assoc_link_id ) { +err = ieee80211_sta_activate_link ( sta , link_id ) ; +if ( err ) +goto out_err ; +} +} + + +ieee80211_vif_set_links ( sdata , valid_links ) ; + +rate_control_rate_init ( sta ) ; + +if ( ifmgd -> flags & ieee80211_sta_mfp_enabled ) { +set_sta_flag ( sta , wlan_sta_mfp ) ; +sta -> sta . mfp = true ; +} else { +sta -> sta . mfp = false ; +} + +ieee80211_sta_set_max_amsdu_subframes ( sta , elems -> ext_capab , +elems -> ext_capab_len ) ; + +sta -> sta . wme = ( elems -> wmm_param || elems -> s1g_capab ) && +local -> hw . queues >= ieee80211_num_acs ; + +err = sta_info_move_state ( sta , ieee80211_sta_assoc ) ; +if ( ! err && ! ( ifmgd -> flags & ieee80211_sta_control_port ) ) +err = sta_info_move_state ( sta , ieee80211_sta_authorized ) ; +if ( err ) { +sdata_info ( sdata , +"failed to move station %pm to desired state\n" , +sta -> sta . addr ) ; +warn_on ( __sta_info_destroy ( sta ) ) ; +goto out_err ; +} + +if ( sdata -> wdev . use_4addr ) +drv_sta_set_4addr ( local , sdata , & sta -> sta , true ) ; + +mutex_unlock ( & sdata -> local -> sta_mtx ) ; + +ieee80211_set_associated ( sdata , assoc_data , changed ) ; + + + + + +if ( ifmgd -> use_4addr ) +ieee80211_send_4addr_nullfunc ( local , sdata ) ; + + + + + +ieee80211_sta_reset_beacon_monitor ( sdata ) ; +ieee80211_sta_reset_conn_monitor ( sdata ) ; + +return true ; +out_err : +eth_zero_addr ( sdata -> vif . cfg . ap_addr ) ; +mutex_unlock ( & sdata -> local -> sta_mtx ) ; +return false ; +} + +static void ieee80211_rx_mgmt_assoc_resp ( struct ieee80211_sub_if_data * sdata , +struct ieee80211_mgmt * mgmt , +size_t len ) +{ +struct ieee80211_if_managed * ifmgd = & sdata -> u . mgd ; +struct ieee80211_mgd_assoc_data * assoc_data = ifmgd -> assoc_data ; +u16 capab_info , status_code , aid ; +struct ieee80211_elems_parse_params parse_params = { +. bss = null , +. link_id = - 1 , +. from_ap = true , +} ; +struct ieee802_11_elems * elems ; +int ac ; +const u8 * elem_start ; +unsigned int elem_len ; +bool reassoc ; +struct ieee80211_event event = { +. type = mlme_event , +. u . mlme . data = assoc_event , +} ; +struct ieee80211_prep_tx_info info = { } ; +struct cfg80211_rx_assoc_resp resp = { +. uapsd_queues = - 1 , +} ; +u8 ap_mld_addr [ eth_alen ] __aligned ( 2 ) ; +unsigned int link_id ; + +sdata_assert_lock ( sdata ) ; + +if ( ! assoc_data ) +return ; + +if ( ! ether_addr_equal ( assoc_data -> ap_addr , mgmt -> bssid ) || +! ether_addr_equal ( assoc_data -> ap_addr , mgmt -> sa ) ) +return ; + + + + + + +if ( len < 24 + 6 ) +return ; + +reassoc = ieee80211_is_reassoc_resp ( mgmt -> frame_control ) ; +capab_info = le16_to_cpu ( mgmt -> u . assoc_resp . capab_info ) ; +status_code = le16_to_cpu ( mgmt -> u . assoc_resp . status_code ) ; +if ( assoc_data -> s1g ) +elem_start = mgmt -> u . s1g_assoc_resp . variable ; +else +elem_start = mgmt -> u . assoc_resp . variable ; + + + + + + + +info . subtype = reassoc ? ieee80211_stype_reassoc_req : +ieee80211_stype_assoc_req ; + +if ( assoc_data -> fils_kek_len && +fils_decrypt_assoc_resp ( sdata , ( u8 * ) mgmt , & len , assoc_data ) < 0 ) +return ; + +elem_len = len - ( elem_start - ( u8 * ) mgmt ) ; +parse_params . start = elem_start ; +parse_params . len = elem_len ; +elems = ieee802_11_parse_elems_full ( & parse_params ) ; +if ( ! elems ) +goto notify_driver ; + +if ( elems -> aid_resp ) +aid = le16_to_cpu ( elems -> aid_resp -> aid ) ; +else if ( assoc_data -> s1g ) +aid = 0 ; +else +aid = le16_to_cpu ( mgmt -> u . assoc_resp . aid ) ; + + + + + +aid &= 0x7ff ; + +sdata_info ( sdata , +"rx %sssocresp from %pm (capab=0x%x status=%d aid=%d)\n" , +reassoc ? "rea" : "a" , assoc_data -> ap_addr , +capab_info , status_code , ( u16 ) ( aid & ~ ( bit ( 15 ) | bit ( 14 ) ) ) ) ; + +ifmgd -> broken_ap = false ; + +if ( status_code == wlan_status_assoc_rejected_temporarily && +elems -> timeout_int && +elems -> timeout_int -> type == wlan_timeout_assoc_comeback ) { +u32 tu , ms ; + +cfg80211_assoc_comeback ( sdata -> dev , assoc_data -> ap_addr , +le32_to_cpu ( elems -> timeout_int -> value ) ) ; + +tu = le32_to_cpu ( elems -> timeout_int -> value ) ; +ms = tu * 1024 / 1000 ; +sdata_info ( sdata , +"%pm rejected association temporarily; comeback duration %u tu (%u ms)\n" , +assoc_data -> ap_addr , tu , ms ) ; +assoc_data -> timeout = jiffies + msecs_to_jiffies ( ms ) ; +assoc_data -> timeout_started = true ; +if ( ms > ieee80211_assoc_timeout ) +run_again ( sdata , assoc_data -> timeout ) ; +goto notify_driver ; +} + +if ( status_code != wlan_status_success ) { +sdata_info ( sdata , "%pm denied association (code=%d)\n" , +assoc_data -> ap_addr , status_code ) ; +event . u . mlme . status = mlme_denied ; +event . u . mlme . reason = status_code ; +drv_event_callback ( sdata -> local , sdata , & event ) ; +} else { +if ( aid == 0 || aid > ieee80211_max_aid ) { +sdata_info ( sdata , +"invalid aid value %d (out of range), turn off ps\n" , +aid ) ; +aid = 0 ; +ifmgd -> broken_ap = true ; +} + +if ( sdata -> vif . valid_links ) { +if ( ! elems -> multi_link ) { +sdata_info ( sdata , +"mlo association with %pm but no multi-link element in response!\n" , +assoc_data -> ap_addr ) ; +goto abandon_assoc ; +} + +if ( le16_get_bits ( elems -> multi_link -> control , +ieee80211_ml_control_type ) != +ieee80211_ml_control_type_basic ) { +sdata_info ( sdata , +"bad multi-link element (control=0x%x)\n" , +le16_to_cpu ( elems -> multi_link -> control ) ) ; +goto abandon_assoc ; +} else { +struct ieee80211_mle_basic_common_info * common ; + +common = ( void * ) elems -> multi_link -> variable ; + +if ( memcmp ( assoc_data -> ap_addr , +common -> mld_mac_addr , eth_alen ) ) { +sdata_info ( sdata , +"ap mld mac address mismatch: got %pm expected %pm\n" , +common -> mld_mac_addr , +assoc_data -> ap_addr ) ; +goto abandon_assoc ; +} +} +} + +sdata -> vif . cfg . aid = aid ; + +if ( ! ieee80211_assoc_success ( sdata , mgmt , elems , +elem_start , elem_len ) ) { + +ieee80211_destroy_assoc_data ( sdata , assoc_timeout ) ; +goto notify_driver ; +} +event . u . mlme . status = mlme_success ; +drv_event_callback ( sdata -> local , sdata , & event ) ; +sdata_info ( sdata , "associated\n" ) ; + +info . success = 1 ; +} + +for ( link_id = 0 ; link_id < ieee80211_mld_max_num_links ; link_id ++ ) { +struct ieee80211_link_data * link ; + +link = sdata_dereference ( sdata -> link [ link_id ] , sdata ) ; +if ( ! link ) +continue ; + +if ( ! assoc_data -> link [ link_id ] . bss ) +continue ; + +resp . links [ link_id ] . bss = assoc_data -> link [ link_id ] . bss ; +resp . links [ link_id ] . addr = link -> conf -> addr ; +resp . links [ link_id ] . status = assoc_data -> link [ link_id ] . status ; + + +resp . uapsd_queues = 0 ; +for ( ac = 0 ; ac < ieee80211_num_acs ; ac ++ ) +if ( link -> tx_conf [ ac ] . uapsd ) +resp . uapsd_queues |= ieee80211_ac_to_qos_mask [ ac ] ; +} + +if ( sdata -> vif . valid_links ) { +ether_addr_copy ( ap_mld_addr , sdata -> vif . cfg . ap_addr ) ; +resp . ap_mld_addr = ap_mld_addr ; +} + +ieee80211_destroy_assoc_data ( sdata , +status_code == wlan_status_success ? +assoc_success : +assoc_rejected ) ; + +resp . buf = ( u8 * ) mgmt ; +resp . len = len ; +resp . req_ies = ifmgd -> assoc_req_ies ; +resp . req_ies_len = ifmgd -> assoc_req_ies_len ; +cfg80211_rx_assoc_resp ( sdata -> dev , & resp ) ; +notify_driver : +drv_mgd_complete_tx ( sdata -> local , sdata , & info ) ; +kfree ( elems ) ; +return ; +abandon_assoc : +ieee80211_destroy_assoc_data ( sdata , assoc_abandon ) ; +goto notify_driver ; +} + +static void ieee80211_rx_bss_info ( struct ieee80211_link_data * link , +struct ieee80211_mgmt * mgmt , size_t len , +struct ieee80211_rx_status * rx_status ) +{ +struct ieee80211_sub_if_data * sdata = link -> sdata ; +struct ieee80211_local * local = sdata -> local ; +struct ieee80211_bss * bss ; +struct ieee80211_channel * channel ; + +sdata_assert_lock ( sdata ) ; + +channel = ieee80211_get_channel_khz ( local -> hw . wiphy , +ieee80211_rx_status_to_khz ( rx_status ) ) ; +if ( ! channel ) +return ; + +bss = ieee80211_bss_info_update ( local , rx_status , mgmt , len , channel ) ; +if ( bss ) { +link -> conf -> beacon_rate = bss -> beacon_rate ; +ieee80211_rx_bss_put ( local , bss ) ; +} +} + + +static void ieee80211_rx_mgmt_probe_resp ( struct ieee80211_link_data * link , +struct sk_buff * skb ) +{ +struct ieee80211_sub_if_data * sdata = link -> sdata ; +struct ieee80211_mgmt * mgmt = ( void * ) skb -> data ; +struct ieee80211_if_managed * ifmgd ; +struct ieee80211_rx_status * rx_status = ( void * ) skb -> cb ; +struct ieee80211_channel * channel ; +size_t baselen , len = skb -> len ; + +ifmgd = & sdata -> u . mgd ; + +sdata_assert_lock ( sdata ) ; + + + + + + + + +channel = ieee80211_get_channel ( sdata -> local -> hw . wiphy , +rx_status -> freq ) ; +if ( ! channel ) +return ; + +if ( ! ether_addr_equal ( mgmt -> da , sdata -> vif . addr ) && +( channel -> band != nl80211_band_6ghz || +! is_broadcast_ether_addr ( mgmt -> da ) ) ) +return ; + +baselen = ( u8 * ) mgmt -> u . probe_resp . variable - ( u8 * ) mgmt ; +if ( baselen > len ) +return ; + +ieee80211_rx_bss_info ( link , mgmt , len , rx_status ) ; + +if ( ifmgd -> associated && +ether_addr_equal ( mgmt -> bssid , link -> u . mgd . bssid ) ) +ieee80211_reset_ap_probe ( sdata ) ; +} + + + + + + + + + + + + + + + + +static const u64 care_about_ies = +( 1ull << wlan_eid_country ) | +( 1ull << wlan_eid_erp_info ) | +( 1ull << wlan_eid_channel_switch ) | +( 1ull << wlan_eid_pwr_constraint ) | +( 1ull << wlan_eid_ht_capability ) | +( 1ull << wlan_eid_ht_operation ) | +( 1ull << wlan_eid_ext_chanswitch_ann ) ; + +static void ieee80211_handle_beacon_sig ( struct ieee80211_link_data * link , +struct ieee80211_if_managed * ifmgd , +struct ieee80211_bss_conf * bss_conf , +struct ieee80211_local * local , +struct ieee80211_rx_status * rx_status ) +{ +struct ieee80211_sub_if_data * sdata = link -> sdata ; + + + +if ( ! link -> u . mgd . tracking_signal_avg ) { +link -> u . mgd . tracking_signal_avg = true ; +ewma_beacon_signal_init ( & link -> u . mgd . ave_beacon_signal ) ; +link -> u . mgd . last_cqm_event_signal = 0 ; +link -> u . mgd . count_beacon_signal = 1 ; +link -> u . mgd . last_ave_beacon_signal = 0 ; +} else { +link -> u . mgd . count_beacon_signal ++ ; +} + +ewma_beacon_signal_add ( & link -> u . mgd . ave_beacon_signal , +- rx_status -> signal ) ; + +if ( ifmgd -> rssi_min_thold != ifmgd -> rssi_max_thold && +link -> u . mgd . count_beacon_signal >= ieee80211_signal_ave_min_count ) { +int sig = - ewma_beacon_signal_read ( & link -> u . mgd . ave_beacon_signal ) ; +int last_sig = link -> u . mgd . last_ave_beacon_signal ; +struct ieee80211_event event = { +. type = rssi_event , +} ; + + + + + +if ( sig > ifmgd -> rssi_max_thold && +( last_sig <= ifmgd -> rssi_min_thold || last_sig == 0 ) ) { +link -> u . mgd . last_ave_beacon_signal = sig ; +event . u . rssi . data = rssi_event_high ; +drv_event_callback ( local , sdata , & event ) ; +} else if ( sig < ifmgd -> rssi_min_thold && +( last_sig >= ifmgd -> rssi_max_thold || +last_sig == 0 ) ) { +link -> u . mgd . last_ave_beacon_signal = sig ; +event . u . rssi . data = rssi_event_low ; +drv_event_callback ( local , sdata , & event ) ; +} +} + +if ( bss_conf -> cqm_rssi_thold && +link -> u . mgd . count_beacon_signal >= ieee80211_signal_ave_min_count && +! ( sdata -> vif . driver_flags & ieee80211_vif_supports_cqm_rssi ) ) { +int sig = - ewma_beacon_signal_read ( & link -> u . mgd . ave_beacon_signal ) ; +int last_event = link -> u . mgd . last_cqm_event_signal ; +int thold = bss_conf -> cqm_rssi_thold ; +int hyst = bss_conf -> cqm_rssi_hyst ; + +if ( sig < thold && +( last_event == 0 || sig < last_event - hyst ) ) { +link -> u . mgd . last_cqm_event_signal = sig ; +ieee80211_cqm_rssi_notify ( +& sdata -> vif , +nl80211_cqm_rssi_threshold_event_low , +sig , gfp_kernel ) ; +} else if ( sig > thold && +( last_event == 0 || sig > last_event + hyst ) ) { +link -> u . mgd . last_cqm_event_signal = sig ; +ieee80211_cqm_rssi_notify ( +& sdata -> vif , +nl80211_cqm_rssi_threshold_event_high , +sig , gfp_kernel ) ; +} +} + +if ( bss_conf -> cqm_rssi_low && +link -> u . mgd . count_beacon_signal >= ieee80211_signal_ave_min_count ) { +int sig = - ewma_beacon_signal_read ( & link -> u . mgd . ave_beacon_signal ) ; +int last_event = link -> u . mgd . last_cqm_event_signal ; +int low = bss_conf -> cqm_rssi_low ; +int high = bss_conf -> cqm_rssi_high ; + +if ( sig < low && +( last_event == 0 || last_event >= low ) ) { +link -> u . mgd . last_cqm_event_signal = sig ; +ieee80211_cqm_rssi_notify ( +& sdata -> vif , +nl80211_cqm_rssi_threshold_event_low , +sig , gfp_kernel ) ; +} else if ( sig > high && +( last_event == 0 || last_event <= high ) ) { +link -> u . mgd . last_cqm_event_signal = sig ; +ieee80211_cqm_rssi_notify ( +& sdata -> vif , +nl80211_cqm_rssi_threshold_event_high , +sig , gfp_kernel ) ; +} +} +} + +static bool ieee80211_rx_our_beacon ( const u8 * tx_bssid , +struct cfg80211_bss * bss ) +{ +if ( ether_addr_equal ( tx_bssid , bss -> bssid ) ) +return true ; +if ( ! bss -> transmitted_bss ) +return false ; +return ether_addr_equal ( tx_bssid , bss -> transmitted_bss -> bssid ) ; +} + +static bool ieee80211_config_puncturing ( struct ieee80211_link_data * link , +const struct ieee80211_eht_operation * eht_oper , +u64 * changed ) +{ +u16 bitmap = 0 , extracted ; + +if ( ( eht_oper -> params & ieee80211_eht_oper_info_present ) && +( eht_oper -> params & +ieee80211_eht_oper_disabled_subchannel_bitmap_present ) ) { +const struct ieee80211_eht_operation_info * info = +( void * ) eht_oper -> optional ; +const u8 * disable_subchannel_bitmap = info -> optional ; + +bitmap = get_unaligned_le16 ( disable_subchannel_bitmap ) ; +} + +extracted = ieee80211_extract_dis_subch_bmap ( eht_oper , +& link -> conf -> chandef , +bitmap ) ; + + +if ( ! ( * changed & bss_changed_bandwidth ) && +extracted == link -> conf -> eht_puncturing ) +return true ; + +if ( ! cfg80211_valid_disable_subchannel_bitmap ( & bitmap , +& link -> conf -> chandef ) ) { +link_info ( link , +"got an invalid disable subchannel bitmap from ap %pm: bitmap = 0x%x, bw = 0x%x. disconnect\n" , +link -> u . mgd . bssid , +bitmap , +link -> conf -> chandef . width ) ; +return false ; +} + +ieee80211_handle_puncturing_bitmap ( link , eht_oper , bitmap , changed ) ; +return true ; +} + +static void ieee80211_rx_mgmt_beacon ( struct ieee80211_link_data * link , +struct ieee80211_hdr * hdr , size_t len , +struct ieee80211_rx_status * rx_status ) +{ +struct ieee80211_sub_if_data * sdata = link -> sdata ; +struct ieee80211_if_managed * ifmgd = & sdata -> u . mgd ; +struct ieee80211_bss_conf * bss_conf = & sdata -> vif . bss_conf ; +struct ieee80211_vif_cfg * vif_cfg = & sdata -> vif . cfg ; +struct ieee80211_mgmt * mgmt = ( void * ) hdr ; +size_t baselen ; +struct ieee802_11_elems * elems ; +struct ieee80211_local * local = sdata -> local ; +struct ieee80211_chanctx_conf * chanctx_conf ; +struct ieee80211_supported_band * sband ; +struct ieee80211_channel * chan ; +struct link_sta_info * link_sta ; +struct sta_info * sta ; +u64 changed = 0 ; +bool erp_valid ; +u8 erp_value = 0 ; +u32 ncrc = 0 ; +u8 * bssid , * variable = mgmt -> u . beacon . variable ; +u8 deauth_buf [ ieee80211_deauth_frame_len ] ; +struct ieee80211_elems_parse_params parse_params = { +. link_id = - 1 , +. from_ap = true , +} ; + +sdata_assert_lock ( sdata ) ; + + +bssid = ieee80211_get_bssid ( hdr , len , sdata -> vif . type ) ; +if ( ieee80211_is_s1g_beacon ( mgmt -> frame_control ) ) { +struct ieee80211_ext * ext = ( void * ) mgmt ; + +if ( ieee80211_is_s1g_short_beacon ( ext -> frame_control ) ) +variable = ext -> u . s1g_short_beacon . variable ; +else +variable = ext -> u . s1g_beacon . variable ; +} + +baselen = ( u8 * ) variable - ( u8 * ) mgmt ; +if ( baselen > len ) +return ; + +parse_params . start = variable ; +parse_params . len = len - baselen ; + +rcu_read_lock ( ) ; +chanctx_conf = rcu_dereference ( link -> conf -> chanctx_conf ) ; +if ( ! chanctx_conf ) { +rcu_read_unlock ( ) ; +return ; +} + +if ( ieee80211_rx_status_to_khz ( rx_status ) != +ieee80211_channel_to_khz ( chanctx_conf -> def . chan ) ) { +rcu_read_unlock ( ) ; +return ; +} +chan = chanctx_conf -> def . chan ; +rcu_read_unlock ( ) ; + +if ( ifmgd -> assoc_data && ifmgd -> assoc_data -> need_beacon && +! warn_on ( sdata -> vif . valid_links ) && +ieee80211_rx_our_beacon ( bssid , ifmgd -> assoc_data -> link [ 0 ] . bss ) ) { +parse_params . bss = ifmgd -> assoc_data -> link [ 0 ] . bss ; +elems = ieee802_11_parse_elems_full ( & parse_params ) ; +if ( ! elems ) +return ; + +ieee80211_rx_bss_info ( link , mgmt , len , rx_status ) ; + +if ( elems -> dtim_period ) +link -> u . mgd . dtim_period = elems -> dtim_period ; +link -> u . mgd . have_beacon = true ; +ifmgd -> assoc_data -> need_beacon = false ; +if ( ieee80211_hw_check ( & local -> hw , timing_beacon_only ) ) { +link -> conf -> sync_tsf = +le64_to_cpu ( mgmt -> u . beacon . timestamp ) ; +link -> conf -> sync_device_ts = +rx_status -> device_timestamp ; +link -> conf -> sync_dtim_count = elems -> dtim_count ; +} + +if ( elems -> mbssid_config_ie ) +bss_conf -> profile_periodicity = +elems -> mbssid_config_ie -> profile_periodicity ; +else +bss_conf -> profile_periodicity = 0 ; + +if ( elems -> ext_capab_len >= 11 && +( elems -> ext_capab [ 10 ] & wlan_ext_capa11_ema_support ) ) +bss_conf -> ema_ap = true ; +else +bss_conf -> ema_ap = false ; + + +ifmgd -> assoc_data -> timeout = jiffies ; +ifmgd -> assoc_data -> timeout_started = true ; +run_again ( sdata , ifmgd -> assoc_data -> timeout ) ; +kfree ( elems ) ; +return ; +} + +if ( ! ifmgd -> associated || +! ieee80211_rx_our_beacon ( bssid , link -> u . mgd . bss ) ) +return ; +bssid = link -> u . mgd . bssid ; + +if ( ! ( rx_status -> flag & rx_flag_no_signal_val ) ) +ieee80211_handle_beacon_sig ( link , ifmgd , bss_conf , +local , rx_status ) ; + +if ( ifmgd -> flags & ieee80211_sta_connection_poll ) { +mlme_dbg_ratelimited ( sdata , +"cancelling ap probe due to a received beacon\n" ) ; +ieee80211_reset_ap_probe ( sdata ) ; +} + + + + + +ieee80211_sta_reset_beacon_monitor ( sdata ) ; + + + + + + +if ( ! ieee80211_is_s1g_beacon ( hdr -> frame_control ) ) +ncrc = crc32_be ( 0 , ( void * ) & mgmt -> u . beacon . beacon_int , 4 ) ; +parse_params . bss = link -> u . mgd . bss ; +parse_params . filter = care_about_ies ; +parse_params . crc = ncrc ; +elems = ieee802_11_parse_elems_full ( & parse_params ) ; +if ( ! elems ) +return ; +ncrc = elems -> crc ; + +if ( ieee80211_hw_check ( & local -> hw , ps_nullfunc_stack ) && +ieee80211_check_tim ( elems -> tim , elems -> tim_len , vif_cfg -> aid ) ) { +if ( local -> hw . conf . dynamic_ps_timeout > 0 ) { +if ( local -> hw . conf . flags & ieee80211_conf_ps ) { +local -> hw . conf . flags &= ~ ieee80211_conf_ps ; +ieee80211_hw_config ( local , +ieee80211_conf_change_ps ) ; +} +ieee80211_send_nullfunc ( local , sdata , false ) ; +} else if ( ! local -> pspolling && sdata -> u . mgd . powersave ) { +local -> pspolling = true ; + + + + + + + + + +ieee80211_send_pspoll ( local , sdata ) ; +} +} + +if ( sdata -> vif . p2p || +sdata -> vif . driver_flags & ieee80211_vif_get_noa_update ) { +struct ieee80211_p2p_noa_attr noa = { } ; +int ret ; + +ret = cfg80211_get_p2p_attr ( variable , +len - baselen , +ieee80211_p2p_attr_absence_notice , +( u8 * ) & noa , sizeof ( noa ) ) ; +if ( ret >= 2 ) { +if ( link -> u . mgd . p2p_noa_index != noa . index ) { + +link -> u . mgd . p2p_noa_index = noa . index ; +memcpy ( & bss_conf -> p2p_noa_attr , & noa , sizeof ( noa ) ) ; +changed |= bss_changed_p2p_ps ; + + + + +link -> u . mgd . beacon_crc_valid = false ; +} +} else if ( link -> u . mgd . p2p_noa_index != - 1 ) { + +link -> u . mgd . p2p_noa_index = - 1 ; +memset ( & bss_conf -> p2p_noa_attr , 0 , sizeof ( bss_conf -> p2p_noa_attr ) ) ; +changed |= bss_changed_p2p_ps ; +link -> u . mgd . beacon_crc_valid = false ; +} +} + +if ( link -> u . mgd . csa_waiting_bcn ) +ieee80211_chswitch_post_beacon ( link ) ; + + + + + + + + + +if ( ieee80211_hw_check ( & local -> hw , timing_beacon_only ) && +! ieee80211_is_s1g_beacon ( hdr -> frame_control ) ) { +link -> conf -> sync_tsf = +le64_to_cpu ( mgmt -> u . beacon . timestamp ) ; +link -> conf -> sync_device_ts = +rx_status -> device_timestamp ; +link -> conf -> sync_dtim_count = elems -> dtim_count ; +} + +if ( ( ncrc == link -> u . mgd . beacon_crc && link -> u . mgd . beacon_crc_valid ) || +ieee80211_is_s1g_short_beacon ( mgmt -> frame_control ) ) +goto free ; +link -> u . mgd . beacon_crc = ncrc ; +link -> u . mgd . beacon_crc_valid = true ; + +ieee80211_rx_bss_info ( link , mgmt , len , rx_status ) ; + +ieee80211_sta_process_chanswitch ( link , rx_status -> mactime , +rx_status -> device_timestamp , +elems , true ) ; + +if ( ! link -> u . mgd . disable_wmm_tracking && +ieee80211_sta_wmm_params ( local , link , elems -> wmm_param , +elems -> wmm_param_len , +elems -> mu_edca_param_set ) ) +changed |= bss_changed_qos ; + + + + + +if ( ! link -> u . mgd . have_beacon ) { + +bss_conf -> dtim_period = elems -> dtim_period ? : 1 ; + +changed |= bss_changed_beacon_info ; +link -> u . mgd . have_beacon = true ; + +mutex_lock ( & local -> iflist_mtx ) ; +ieee80211_recalc_ps ( local ) ; +mutex_unlock ( & local -> iflist_mtx ) ; + +ieee80211_recalc_ps_vif ( sdata ) ; +} + +if ( elems -> erp_info ) { +erp_valid = true ; +erp_value = elems -> erp_info [ 0 ] ; +} else { +erp_valid = false ; +} + +if ( ! ieee80211_is_s1g_beacon ( hdr -> frame_control ) ) +changed |= ieee80211_handle_bss_capability ( link , +le16_to_cpu ( mgmt -> u . beacon . capab_info ) , +erp_valid , erp_value ) ; + +mutex_lock ( & local -> sta_mtx ) ; +sta = sta_info_get ( sdata , sdata -> vif . cfg . ap_addr ) ; +if ( warn_on ( ! sta ) ) { +mutex_unlock ( & local -> sta_mtx ) ; +goto free ; +} +link_sta = rcu_dereference_protected ( sta -> link [ link -> link_id ] , +lockdep_is_held ( & local -> sta_mtx ) ) ; +if ( warn_on ( ! link_sta ) ) { +mutex_unlock ( & local -> sta_mtx ) ; +goto free ; +} + +if ( warn_on ( ! link -> conf -> chandef . chan ) ) +goto free ; + +sband = local -> hw . wiphy -> bands [ link -> conf -> chandef . chan -> band ] ; + +changed |= ieee80211_recalc_twt_req ( sdata , sband , link , link_sta , elems ) ; + +if ( ieee80211_config_bw ( link , elems -> ht_cap_elem , +elems -> vht_cap_elem , elems -> ht_operation , +elems -> vht_operation , elems -> he_operation , +elems -> eht_operation , +elems -> s1g_oper , bssid , & changed ) ) { +mutex_unlock ( & local -> sta_mtx ) ; +sdata_info ( sdata , +"failed to follow ap %pm bandwidth change, disconnect\n" , +bssid ) ; +ieee80211_set_disassoc ( sdata , ieee80211_stype_deauth , +wlan_reason_deauth_leaving , +true , deauth_buf ) ; +ieee80211_report_disconnect ( sdata , deauth_buf , +sizeof ( deauth_buf ) , true , +wlan_reason_deauth_leaving , +false ) ; +goto free ; +} + +if ( sta && elems -> opmode_notif ) +ieee80211_vht_handle_opmode ( sdata , link_sta , +* elems -> opmode_notif , +rx_status -> band ) ; +mutex_unlock ( & local -> sta_mtx ) ; + +changed |= ieee80211_handle_pwr_constr ( link , chan , mgmt , +elems -> country_elem , +elems -> country_elem_len , +elems -> pwr_constr_elem , +elems -> cisco_dtpc_elem ) ; + +if ( elems -> eht_operation && +! ( link -> u . mgd . conn_flags & ieee80211_conn_disable_eht ) ) { +if ( ! ieee80211_config_puncturing ( link , elems -> eht_operation , +& changed ) ) { +ieee80211_set_disassoc ( sdata , ieee80211_stype_deauth , +wlan_reason_deauth_leaving , +true , deauth_buf ) ; +ieee80211_report_disconnect ( sdata , deauth_buf , +sizeof ( deauth_buf ) , true , +wlan_reason_deauth_leaving , +false ) ; +goto free ; +} +} + +ieee80211_link_info_change_notify ( sdata , link , changed ) ; +free : +kfree ( elems ) ; +} + +void ieee80211_sta_rx_queued_ext ( struct ieee80211_sub_if_data * sdata , +struct sk_buff * skb ) +{ +struct ieee80211_link_data * link = & sdata -> deflink ; +struct ieee80211_rx_status * rx_status ; +struct ieee80211_hdr * hdr ; +u16 fc ; + +rx_status = ( struct ieee80211_rx_status * ) skb -> cb ; +hdr = ( struct ieee80211_hdr * ) skb -> data ; +fc = le16_to_cpu ( hdr -> frame_control ) ; + +sdata_lock ( sdata ) ; +switch ( fc & ieee80211_fctl_stype ) { +case ieee80211_stype_s1g_beacon : +ieee80211_rx_mgmt_beacon ( link , hdr , skb -> len , rx_status ) ; +break ; +} +sdata_unlock ( sdata ) ; +} + +void ieee80211_sta_rx_queued_mgmt ( struct ieee80211_sub_if_data * sdata , +struct sk_buff * skb ) +{ +struct ieee80211_link_data * link = & sdata -> deflink ; +struct ieee80211_rx_status * rx_status ; +struct ieee80211_mgmt * mgmt ; +u16 fc ; +int ies_len ; + +rx_status = ( struct ieee80211_rx_status * ) skb -> cb ; +mgmt = ( struct ieee80211_mgmt * ) skb -> data ; +fc = le16_to_cpu ( mgmt -> frame_control ) ; + +sdata_lock ( sdata ) ; + +if ( rx_status -> link_valid ) { +link = sdata_dereference ( sdata -> link [ rx_status -> link_id ] , +sdata ) ; +if ( ! link ) +goto out ; +} + +switch ( fc & ieee80211_fctl_stype ) { +case ieee80211_stype_beacon : +ieee80211_rx_mgmt_beacon ( link , ( void * ) mgmt , +skb -> len , rx_status ) ; +break ; +case ieee80211_stype_probe_resp : +ieee80211_rx_mgmt_probe_resp ( link , skb ) ; +break ; +case ieee80211_stype_auth : +ieee80211_rx_mgmt_auth ( sdata , mgmt , skb -> len ) ; +break ; +case ieee80211_stype_deauth : +ieee80211_rx_mgmt_deauth ( sdata , mgmt , skb -> len ) ; +break ; +case ieee80211_stype_disassoc : +ieee80211_rx_mgmt_disassoc ( sdata , mgmt , skb -> len ) ; +break ; +case ieee80211_stype_assoc_resp : +case ieee80211_stype_reassoc_resp : +ieee80211_rx_mgmt_assoc_resp ( sdata , mgmt , skb -> len ) ; +break ; +case ieee80211_stype_action : +if ( mgmt -> u . action . category == wlan_category_spectrum_mgmt ) { +struct ieee802_11_elems * elems ; + +ies_len = skb -> len - +offsetof ( struct ieee80211_mgmt , +u . action . u . chan_switch . variable ) ; + +if ( ies_len < 0 ) +break ; + + +elems = ieee802_11_parse_elems ( +mgmt -> u . action . u . chan_switch . variable , +ies_len , true , null ) ; + +if ( elems && ! elems -> parse_error ) +ieee80211_sta_process_chanswitch ( link , +rx_status -> mactime , +rx_status -> device_timestamp , +elems , false ) ; +kfree ( elems ) ; +} else if ( mgmt -> u . action . category == wlan_category_public ) { +struct ieee802_11_elems * elems ; + +ies_len = skb -> len - +offsetof ( struct ieee80211_mgmt , +u . action . u . ext_chan_switch . variable ) ; + +if ( ies_len < 0 ) +break ; + + + + + +elems = ieee802_11_parse_elems ( +mgmt -> u . action . u . ext_chan_switch . variable , +ies_len , true , null ) ; + +if ( elems && ! elems -> parse_error ) { + +elems -> ext_chansw_ie = +& mgmt -> u . action . u . ext_chan_switch . data ; + +ieee80211_sta_process_chanswitch ( link , +rx_status -> mactime , +rx_status -> device_timestamp , +elems , false ) ; +} + +kfree ( elems ) ; +} +break ; +} +out : +sdata_unlock ( sdata ) ; +} + +static void ieee80211_sta_timer ( struct timer_list * t ) +{ +struct ieee80211_sub_if_data * sdata = +from_timer ( sdata , t , u . mgd . timer ) ; + +ieee80211_queue_work ( & sdata -> local -> hw , & sdata -> work ) ; +} + +void ieee80211_sta_connection_lost ( struct ieee80211_sub_if_data * sdata , +u8 reason , bool tx ) +{ +u8 frame_buf [ ieee80211_deauth_frame_len ] ; + +ieee80211_set_disassoc ( sdata , ieee80211_stype_deauth , reason , +tx , frame_buf ) ; + +ieee80211_report_disconnect ( sdata , frame_buf , sizeof ( frame_buf ) , true , +reason , false ) ; +} + +static int ieee80211_auth ( struct ieee80211_sub_if_data * sdata ) +{ +struct ieee80211_local * local = sdata -> local ; +struct ieee80211_if_managed * ifmgd = & sdata -> u . mgd ; +struct ieee80211_mgd_auth_data * auth_data = ifmgd -> auth_data ; +u32 tx_flags = 0 ; +u16 trans = 1 ; +u16 status = 0 ; +struct ieee80211_prep_tx_info info = { +. subtype = ieee80211_stype_auth , +} ; + +sdata_assert_lock ( sdata ) ; + +if ( warn_on_once ( ! auth_data ) ) +return - einval ; + +auth_data -> tries ++ ; + +if ( auth_data -> tries > ieee80211_auth_max_tries ) { +sdata_info ( sdata , "authentication with %pm timed out\n" , +auth_data -> ap_addr ) ; + + + + + +cfg80211_unlink_bss ( local -> hw . wiphy , auth_data -> bss ) ; + +return - etimedout ; +} + +if ( auth_data -> algorithm == wlan_auth_sae ) +info . duration = jiffies_to_msecs ( ieee80211_auth_timeout_sae ) ; + +drv_mgd_prepare_tx ( local , sdata , & info ) ; + +sdata_info ( sdata , "send auth to %pm (try %d/%d)\n" , +auth_data -> ap_addr , auth_data -> tries , +ieee80211_auth_max_tries ) ; + +auth_data -> expected_transaction = 2 ; + +if ( auth_data -> algorithm == wlan_auth_sae ) { +trans = auth_data -> sae_trans ; +status = auth_data -> sae_status ; +auth_data -> expected_transaction = trans ; +} + +if ( ieee80211_hw_check ( & local -> hw , reports_tx_ack_status ) ) +tx_flags = ieee80211_tx_ctl_req_tx_status | +ieee80211_tx_intfl_mlme_conn_tx ; + +ieee80211_send_auth ( sdata , trans , auth_data -> algorithm , status , +auth_data -> data , auth_data -> data_len , +auth_data -> ap_addr , auth_data -> ap_addr , +null , 0 , 0 , tx_flags ) ; + +if ( tx_flags == 0 ) { +if ( auth_data -> algorithm == wlan_auth_sae ) +auth_data -> timeout = jiffies + +ieee80211_auth_timeout_sae ; +else +auth_data -> timeout = jiffies + ieee80211_auth_timeout ; +} else { +auth_data -> timeout = +round_jiffies_up ( jiffies + ieee80211_auth_timeout_long ) ; +} + +auth_data -> timeout_started = true ; +run_again ( sdata , auth_data -> timeout ) ; + +return 0 ; +} + +static int ieee80211_do_assoc ( struct ieee80211_sub_if_data * sdata ) +{ +struct ieee80211_mgd_assoc_data * assoc_data = sdata -> u . mgd . assoc_data ; +struct ieee80211_local * local = sdata -> local ; +int ret ; + +sdata_assert_lock ( sdata ) ; + +assoc_data -> tries ++ ; +if ( assoc_data -> tries > ieee80211_assoc_max_tries ) { +sdata_info ( sdata , "association with %pm timed out\n" , +assoc_data -> ap_addr ) ; + + + + + +cfg80211_unlink_bss ( local -> hw . wiphy , +assoc_data -> link [ assoc_data -> assoc_link_id ] . bss ) ; + +return - etimedout ; +} + +sdata_info ( sdata , "associate with %pm (try %d/%d)\n" , +assoc_data -> ap_addr , assoc_data -> tries , +ieee80211_assoc_max_tries ) ; +ret = ieee80211_send_assoc ( sdata ) ; +if ( ret ) +return ret ; + +if ( ! ieee80211_hw_check ( & local -> hw , reports_tx_ack_status ) ) { +assoc_data -> timeout = jiffies + ieee80211_assoc_timeout ; +assoc_data -> timeout_started = true ; +run_again ( sdata , assoc_data -> timeout ) ; +} else { +assoc_data -> timeout = +round_jiffies_up ( jiffies + +ieee80211_assoc_timeout_long ) ; +assoc_data -> timeout_started = true ; +run_again ( sdata , assoc_data -> timeout ) ; +} + +return 0 ; +} + +void ieee80211_mgd_conn_tx_status ( struct ieee80211_sub_if_data * sdata , +__le16 fc , bool acked ) +{ +struct ieee80211_local * local = sdata -> local ; + +sdata -> u . mgd . status_fc = fc ; +sdata -> u . mgd . status_acked = acked ; +sdata -> u . mgd . status_received = true ; + +ieee80211_queue_work ( & local -> hw , & sdata -> work ) ; +} + +void ieee80211_sta_work ( struct ieee80211_sub_if_data * sdata ) +{ +struct ieee80211_local * local = sdata -> local ; +struct ieee80211_if_managed * ifmgd = & sdata -> u . mgd ; + +sdata_lock ( sdata ) ; + +if ( ifmgd -> status_received ) { +__le16 fc = ifmgd -> status_fc ; +bool status_acked = ifmgd -> status_acked ; + +ifmgd -> status_received = false ; +if ( ifmgd -> auth_data && ieee80211_is_auth ( fc ) ) { +if ( status_acked ) { +if ( ifmgd -> auth_data -> algorithm == +wlan_auth_sae ) +ifmgd -> auth_data -> timeout = +jiffies + +ieee80211_auth_timeout_sae ; +else +ifmgd -> auth_data -> timeout = +jiffies + +ieee80211_auth_timeout_short ; +run_again ( sdata , ifmgd -> auth_data -> timeout ) ; +} else { +ifmgd -> auth_data -> timeout = jiffies - 1 ; +} +ifmgd -> auth_data -> timeout_started = true ; +} else if ( ifmgd -> assoc_data && +( ieee80211_is_assoc_req ( fc ) || +ieee80211_is_reassoc_req ( fc ) ) ) { +if ( status_acked ) { +ifmgd -> assoc_data -> timeout = +jiffies + ieee80211_assoc_timeout_short ; +run_again ( sdata , ifmgd -> assoc_data -> timeout ) ; +} else { +ifmgd -> assoc_data -> timeout = jiffies - 1 ; +} +ifmgd -> assoc_data -> timeout_started = true ; +} +} + +if ( ifmgd -> auth_data && ifmgd -> auth_data -> timeout_started && +time_after ( jiffies , ifmgd -> auth_data -> timeout ) ) { +if ( ifmgd -> auth_data -> done || ifmgd -> auth_data -> waiting ) { + + + + +ieee80211_destroy_auth_data ( sdata , false ) ; +} else if ( ieee80211_auth ( sdata ) ) { +u8 ap_addr [ eth_alen ] ; +struct ieee80211_event event = { +. type = mlme_event , +. u . mlme . data = auth_event , +. u . mlme . status = mlme_timeout , +} ; + +memcpy ( ap_addr , ifmgd -> auth_data -> ap_addr , eth_alen ) ; + +ieee80211_destroy_auth_data ( sdata , false ) ; + +cfg80211_auth_timeout ( sdata -> dev , ap_addr ) ; +drv_event_callback ( sdata -> local , sdata , & event ) ; +} +} else if ( ifmgd -> auth_data && ifmgd -> auth_data -> timeout_started ) +run_again ( sdata , ifmgd -> auth_data -> timeout ) ; + +if ( ifmgd -> assoc_data && ifmgd -> assoc_data -> timeout_started && +time_after ( jiffies , ifmgd -> assoc_data -> timeout ) ) { +if ( ( ifmgd -> assoc_data -> need_beacon && +! sdata -> deflink . u . mgd . have_beacon ) || +ieee80211_do_assoc ( sdata ) ) { +struct ieee80211_event event = { +. type = mlme_event , +. u . mlme . data = assoc_event , +. u . mlme . status = mlme_timeout , +} ; + +ieee80211_destroy_assoc_data ( sdata , assoc_timeout ) ; +drv_event_callback ( sdata -> local , sdata , & event ) ; +} +} else if ( ifmgd -> assoc_data && ifmgd -> assoc_data -> timeout_started ) +run_again ( sdata , ifmgd -> assoc_data -> timeout ) ; + +if ( ifmgd -> flags & ieee80211_sta_connection_poll && +ifmgd -> associated ) { +u8 * bssid = sdata -> deflink . u . mgd . bssid ; +int max_tries ; + +if ( ieee80211_hw_check ( & local -> hw , reports_tx_ack_status ) ) +max_tries = max_nullfunc_tries ; +else +max_tries = max_probe_tries ; + + +if ( ! ifmgd -> probe_send_count ) +ieee80211_reset_ap_probe ( sdata ) ; +else if ( ifmgd -> nullfunc_failed ) { +if ( ifmgd -> probe_send_count < max_tries ) { +mlme_dbg ( sdata , +"no ack for nullfunc frame to ap %pm, try %d/%i\n" , +bssid , ifmgd -> probe_send_count , +max_tries ) ; +ieee80211_mgd_probe_ap_send ( sdata ) ; +} else { +mlme_dbg ( sdata , +"no ack for nullfunc frame to ap %pm, disconnecting.\n" , +bssid ) ; +ieee80211_sta_connection_lost ( sdata , +wlan_reason_disassoc_due_to_inactivity , +false ) ; +} +} else if ( time_is_after_jiffies ( ifmgd -> probe_timeout ) ) +run_again ( sdata , ifmgd -> probe_timeout ) ; +else if ( ieee80211_hw_check ( & local -> hw , reports_tx_ack_status ) ) { +mlme_dbg ( sdata , +"failed to send nullfunc to ap %pm after %dms, disconnecting\n" , +bssid , probe_wait_ms ) ; +ieee80211_sta_connection_lost ( sdata , +wlan_reason_disassoc_due_to_inactivity , false ) ; +} else if ( ifmgd -> probe_send_count < max_tries ) { +mlme_dbg ( sdata , +"no probe response from ap %pm after %dms, try %d/%i\n" , +bssid , probe_wait_ms , +ifmgd -> probe_send_count , max_tries ) ; +ieee80211_mgd_probe_ap_send ( sdata ) ; +} else { + + + + +mlme_dbg ( sdata , +"no probe response from ap %pm after %dms, disconnecting.\n" , +bssid , probe_wait_ms ) ; + +ieee80211_sta_connection_lost ( sdata , +wlan_reason_disassoc_due_to_inactivity , false ) ; +} +} + +sdata_unlock ( sdata ) ; +} + +static void ieee80211_sta_bcn_mon_timer ( struct timer_list * t ) +{ +struct ieee80211_sub_if_data * sdata = +from_timer ( sdata , t , u . mgd . bcn_mon_timer ) ; + +if ( warn_on ( sdata -> vif . valid_links ) ) +return ; + +if ( sdata -> vif . bss_conf . csa_active && +! sdata -> deflink . u . mgd . csa_waiting_bcn ) +return ; + +if ( sdata -> vif . driver_flags & ieee80211_vif_beacon_filter ) +return ; + +sdata -> u . mgd . connection_loss = false ; +ieee80211_queue_work ( & sdata -> local -> hw , +& sdata -> u . mgd . beacon_connection_loss_work ) ; +} + +static void ieee80211_sta_conn_mon_timer ( struct timer_list * t ) +{ +struct ieee80211_sub_if_data * sdata = +from_timer ( sdata , t , u . mgd . conn_mon_timer ) ; +struct ieee80211_if_managed * ifmgd = & sdata -> u . mgd ; +struct ieee80211_local * local = sdata -> local ; +struct sta_info * sta ; +unsigned long timeout ; + +if ( warn_on ( sdata -> vif . valid_links ) ) +return ; + +if ( sdata -> vif . bss_conf . csa_active && +! sdata -> deflink . u . mgd . csa_waiting_bcn ) +return ; + +sta = sta_info_get ( sdata , sdata -> vif . cfg . ap_addr ) ; +if ( ! sta ) +return ; + +timeout = sta -> deflink . status_stats . last_ack ; +if ( time_before ( sta -> deflink . status_stats . last_ack , sta -> deflink . rx_stats . last_rx ) ) +timeout = sta -> deflink . rx_stats . last_rx ; +timeout += ieee80211_connection_idle_time ; + + + + +if ( time_is_after_jiffies ( timeout ) ) { +mod_timer ( & ifmgd -> conn_mon_timer , round_jiffies_up ( timeout ) ) ; +return ; +} + +ieee80211_queue_work ( & local -> hw , & ifmgd -> monitor_work ) ; +} + +static void ieee80211_sta_monitor_work ( struct work_struct * work ) +{ +struct ieee80211_sub_if_data * sdata = +container_of ( work , struct ieee80211_sub_if_data , +u . mgd . monitor_work ) ; + +ieee80211_mgd_probe_ap ( sdata , false ) ; +} + +static void ieee80211_restart_sta_timer ( struct ieee80211_sub_if_data * sdata ) +{ +if ( sdata -> vif . type == nl80211_iftype_station ) { +__ieee80211_stop_poll ( sdata ) ; + + +if ( ! ieee80211_hw_check ( & sdata -> local -> hw , connection_monitor ) ) +ieee80211_queue_work ( & sdata -> local -> hw , +& sdata -> u . mgd . monitor_work ) ; +} +} + + +void ieee80211_mgd_quiesce ( struct ieee80211_sub_if_data * sdata ) +{ +struct ieee80211_if_managed * ifmgd = & sdata -> u . mgd ; +u8 frame_buf [ ieee80211_deauth_frame_len ] ; + +sdata_lock ( sdata ) ; + +if ( ifmgd -> auth_data || ifmgd -> assoc_data ) { +const u8 * ap_addr = ifmgd -> auth_data ? +ifmgd -> auth_data -> ap_addr : +ifmgd -> assoc_data -> ap_addr ; + + + + + + +ieee80211_send_deauth_disassoc ( sdata , ap_addr , ap_addr , +ieee80211_stype_deauth , +wlan_reason_deauth_leaving , +false , frame_buf ) ; +if ( ifmgd -> assoc_data ) +ieee80211_destroy_assoc_data ( sdata , assoc_abandon ) ; +if ( ifmgd -> auth_data ) +ieee80211_destroy_auth_data ( sdata , false ) ; +cfg80211_tx_mlme_mgmt ( sdata -> dev , frame_buf , +ieee80211_deauth_frame_len , +false ) ; +} + + + + + + + + + + + + + + + + + + +if ( ifmgd -> associated && ! sdata -> local -> wowlan ) { +u8 bssid [ eth_alen ] ; +struct cfg80211_deauth_request req = { +. reason_code = wlan_reason_deauth_leaving , +. bssid = bssid , +} ; + +memcpy ( bssid , sdata -> vif . cfg . ap_addr , eth_alen ) ; +ieee80211_mgd_deauth ( sdata , & req ) ; +} + +sdata_unlock ( sdata ) ; +} + + +void ieee80211_sta_restart ( struct ieee80211_sub_if_data * sdata ) +{ +struct ieee80211_if_managed * ifmgd = & sdata -> u . mgd ; + +sdata_lock ( sdata ) ; +if ( ! ifmgd -> associated ) { +sdata_unlock ( sdata ) ; +return ; +} + +if ( sdata -> flags & ieee80211_sdata_disconnect_resume ) { +sdata -> flags &= ~ ieee80211_sdata_disconnect_resume ; +mlme_dbg ( sdata , "driver requested disconnect after resume\n" ) ; +ieee80211_sta_connection_lost ( sdata , +wlan_reason_unspecified , +true ) ; +sdata_unlock ( sdata ) ; +return ; +} + +if ( sdata -> flags & ieee80211_sdata_disconnect_hw_restart ) { +sdata -> flags &= ~ ieee80211_sdata_disconnect_hw_restart ; +mlme_dbg ( sdata , "driver requested disconnect after hardware restart\n" ) ; +ieee80211_sta_connection_lost ( sdata , +wlan_reason_unspecified , +true ) ; +sdata_unlock ( sdata ) ; +return ; +} + +sdata_unlock ( sdata ) ; +} + +static void ieee80211_request_smps_mgd_work ( struct work_struct * work ) +{ +struct ieee80211_link_data * link = +container_of ( work , struct ieee80211_link_data , +u . mgd . request_smps_work ) ; + +sdata_lock ( link -> sdata ) ; +__ieee80211_request_smps_mgd ( link -> sdata , link , +link -> u . mgd . driver_smps_mode ) ; +sdata_unlock ( link -> sdata ) ; +} + + +void ieee80211_sta_setup_sdata ( struct ieee80211_sub_if_data * sdata ) +{ +struct ieee80211_if_managed * ifmgd = & sdata -> u . mgd ; + +init_work ( & ifmgd -> monitor_work , ieee80211_sta_monitor_work ) ; +init_work ( & ifmgd -> beacon_connection_loss_work , +ieee80211_beacon_connection_loss_work ) ; +init_work ( & ifmgd -> csa_connection_drop_work , +ieee80211_csa_connection_drop_work ) ; +init_delayed_work ( & ifmgd -> tdls_peer_del_work , +ieee80211_tdls_peer_del_work ) ; +timer_setup ( & ifmgd -> timer , ieee80211_sta_timer , 0 ) ; +timer_setup ( & ifmgd -> bcn_mon_timer , ieee80211_sta_bcn_mon_timer , 0 ) ; +timer_setup ( & ifmgd -> conn_mon_timer , ieee80211_sta_conn_mon_timer , 0 ) ; +init_delayed_work ( & ifmgd -> tx_tspec_wk , +ieee80211_sta_handle_tspec_ac_params_wk ) ; + +ifmgd -> flags = 0 ; +ifmgd -> powersave = sdata -> wdev . ps ; +ifmgd -> uapsd_queues = sdata -> local -> hw . uapsd_queues ; +ifmgd -> uapsd_max_sp_len = sdata -> local -> hw . uapsd_max_sp_len ; + +spin_lock_init ( & ifmgd -> teardown_lock ) ; +ifmgd -> teardown_skb = null ; +ifmgd -> orig_teardown_skb = null ; +} + +void ieee80211_mgd_setup_link ( struct ieee80211_link_data * link ) +{ +struct ieee80211_sub_if_data * sdata = link -> sdata ; +struct ieee80211_local * local = sdata -> local ; +unsigned int link_id = link -> link_id ; + +link -> u . mgd . p2p_noa_index = - 1 ; +link -> u . mgd . conn_flags = 0 ; +link -> conf -> bssid = link -> u . mgd . bssid ; + +init_work ( & link -> u . mgd . request_smps_work , +ieee80211_request_smps_mgd_work ) ; +if ( local -> hw . wiphy -> features & nl80211_feature_dynamic_smps ) +link -> u . mgd . req_smps = ieee80211_smps_automatic ; +else +link -> u . mgd . req_smps = ieee80211_smps_off ; + +init_work ( & link -> u . mgd . chswitch_work , ieee80211_chswitch_work ) ; +timer_setup ( & link -> u . mgd . chswitch_timer , ieee80211_chswitch_timer , 0 ) ; + +if ( sdata -> u . mgd . assoc_data ) +ether_addr_copy ( link -> conf -> addr , +sdata -> u . mgd . assoc_data -> link [ link_id ] . addr ) ; +else if ( ! is_valid_ether_addr ( link -> conf -> addr ) ) +eth_random_addr ( link -> conf -> addr ) ; +} + + +void ieee80211_mlme_notify_scan_completed ( struct ieee80211_local * local ) +{ +struct ieee80211_sub_if_data * sdata ; + + +rcu_read_lock ( ) ; +list_for_each_entry_rcu ( sdata , & local -> interfaces , list ) { +if ( ieee80211_sdata_running ( sdata ) ) +ieee80211_restart_sta_timer ( sdata ) ; +} +rcu_read_unlock ( ) ; +} + +static int ieee80211_prep_connection ( struct ieee80211_sub_if_data * sdata , +struct cfg80211_bss * cbss , s8 link_id , +const u8 * ap_mld_addr , bool assoc , +bool override ) +{ +struct ieee80211_local * local = sdata -> local ; +struct ieee80211_if_managed * ifmgd = & sdata -> u . mgd ; +struct ieee80211_bss * bss = ( void * ) cbss -> priv ; +struct sta_info * new_sta = null ; +struct ieee80211_link_data * link ; +bool have_sta = false ; +bool mlo ; +int err ; + +if ( link_id >= 0 ) { +mlo = true ; +if ( warn_on ( ! ap_mld_addr ) ) +return - einval ; +err = ieee80211_vif_set_links ( sdata , bit ( link_id ) ) ; +} else { +if ( warn_on ( ap_mld_addr ) ) +return - einval ; +ap_mld_addr = cbss -> bssid ; +err = ieee80211_vif_set_links ( sdata , 0 ) ; +link_id = 0 ; +mlo = false ; +} + +if ( err ) +return err ; + +link = sdata_dereference ( sdata -> link [ link_id ] , sdata ) ; +if ( warn_on ( ! link ) ) { +err = - enolink ; +goto out_err ; +} + +if ( warn_on ( ! ifmgd -> auth_data && ! ifmgd -> assoc_data ) ) { +err = - einval ; +goto out_err ; +} + + +if ( local -> in_reconfig ) { +err = - ebusy ; +goto out_err ; +} + +if ( assoc ) { +rcu_read_lock ( ) ; +have_sta = sta_info_get ( sdata , ap_mld_addr ) ; +rcu_read_unlock ( ) ; +} + +if ( ! have_sta ) { +if ( mlo ) +new_sta = sta_info_alloc_with_link ( sdata , ap_mld_addr , +link_id , cbss -> bssid , +gfp_kernel ) ; +else +new_sta = sta_info_alloc ( sdata , ap_mld_addr , gfp_kernel ) ; + +if ( ! new_sta ) { +err = - enomem ; +goto out_err ; +} + +new_sta -> sta . mlo = mlo ; +} + + + + + + + + + + + + + + +if ( new_sta ) { +const struct cfg80211_bss_ies * ies ; +struct link_sta_info * link_sta ; + +rcu_read_lock ( ) ; +link_sta = rcu_dereference ( new_sta -> link [ link_id ] ) ; +if ( warn_on ( ! link_sta ) ) { +rcu_read_unlock ( ) ; +sta_info_free ( local , new_sta ) ; +err = - einval ; +goto out_err ; +} + +err = ieee80211_mgd_setup_link_sta ( link , new_sta , +link_sta , cbss ) ; +if ( err ) { +rcu_read_unlock ( ) ; +sta_info_free ( local , new_sta ) ; +goto out_err ; +} + +memcpy ( link -> u . mgd . bssid , cbss -> bssid , eth_alen ) ; + + +link -> conf -> beacon_int = cbss -> beacon_interval ; +ies = rcu_dereference ( cbss -> beacon_ies ) ; +if ( ies ) { +link -> conf -> sync_tsf = ies -> tsf ; +link -> conf -> sync_device_ts = +bss -> device_ts_beacon ; + +ieee80211_get_dtim ( ies , +& link -> conf -> sync_dtim_count , +null ) ; +} else if ( ! ieee80211_hw_check ( & sdata -> local -> hw , +timing_beacon_only ) ) { +ies = rcu_dereference ( cbss -> proberesp_ies ) ; + +link -> conf -> sync_tsf = ies -> tsf ; +link -> conf -> sync_device_ts = +bss -> device_ts_presp ; +link -> conf -> sync_dtim_count = 0 ; +} else { +link -> conf -> sync_tsf = 0 ; +link -> conf -> sync_device_ts = 0 ; +link -> conf -> sync_dtim_count = 0 ; +} +rcu_read_unlock ( ) ; +} + +if ( new_sta || override ) { +err = ieee80211_prep_channel ( sdata , link , cbss , +& link -> u . mgd . conn_flags ) ; +if ( err ) { +if ( new_sta ) +sta_info_free ( local , new_sta ) ; +goto out_err ; +} +} + +if ( new_sta ) { + + + + +ieee80211_link_info_change_notify ( sdata , link , +bss_changed_bssid | +bss_changed_basic_rates | +bss_changed_beacon_int ) ; + +if ( assoc ) +sta_info_pre_move_state ( new_sta , ieee80211_sta_auth ) ; + +err = sta_info_insert ( new_sta ) ; +new_sta = null ; +if ( err ) { +sdata_info ( sdata , +"failed to insert sta entry for the ap (error %d)\n" , +err ) ; +goto out_err ; +} +} else +warn_on_once ( ! ether_addr_equal ( link -> u . mgd . bssid , cbss -> bssid ) ) ; + + +if ( local -> scanning ) +ieee80211_scan_cancel ( local ) ; + +return 0 ; + +out_err : +ieee80211_link_release_channel ( & sdata -> deflink ) ; +ieee80211_vif_set_links ( sdata , 0 ) ; +return err ; +} + + +int ieee80211_mgd_auth ( struct ieee80211_sub_if_data * sdata , +struct cfg80211_auth_request * req ) +{ +struct ieee80211_local * local = sdata -> local ; +struct ieee80211_if_managed * ifmgd = & sdata -> u . mgd ; +struct ieee80211_mgd_auth_data * auth_data ; +u16 auth_alg ; +int err ; +bool cont_auth ; + + + +switch ( req -> auth_type ) { +case nl80211_authtype_open_system : +auth_alg = wlan_auth_open ; +break ; +case nl80211_authtype_shared_key : +if ( fips_enabled ) +return - eopnotsupp ; +auth_alg = wlan_auth_shared_key ; +break ; +case nl80211_authtype_ft : +auth_alg = wlan_auth_ft ; +break ; +case nl80211_authtype_network_eap : +auth_alg = wlan_auth_leap ; +break ; +case nl80211_authtype_sae : +auth_alg = wlan_auth_sae ; +break ; +case nl80211_authtype_fils_sk : +auth_alg = wlan_auth_fils_sk ; +break ; +case nl80211_authtype_fils_sk_pfs : +auth_alg = wlan_auth_fils_sk_pfs ; +break ; +case nl80211_authtype_fils_pk : +auth_alg = wlan_auth_fils_pk ; +break ; +default : +return - eopnotsupp ; +} + +if ( ifmgd -> assoc_data ) +return - ebusy ; + +auth_data = kzalloc ( sizeof ( * auth_data ) + req -> auth_data_len + +req -> ie_len , gfp_kernel ) ; +if ( ! auth_data ) +return - enomem ; + +memcpy ( auth_data -> ap_addr , +req -> ap_mld_addr ? : req -> bss -> bssid , +eth_alen ) ; +auth_data -> bss = req -> bss ; +auth_data -> link_id = req -> link_id ; + +if ( req -> auth_data_len >= 4 ) { +if ( req -> auth_type == nl80211_authtype_sae ) { +__le16 * pos = ( __le16 * ) req -> auth_data ; + +auth_data -> sae_trans = le16_to_cpu ( pos [ 0 ] ) ; +auth_data -> sae_status = le16_to_cpu ( pos [ 1 ] ) ; +} +memcpy ( auth_data -> data , req -> auth_data + 4 , +req -> auth_data_len - 4 ) ; +auth_data -> data_len += req -> auth_data_len - 4 ; +} + + + + + + +cont_auth = ifmgd -> auth_data && req -> bss == ifmgd -> auth_data -> bss && +ifmgd -> auth_data -> link_id == req -> link_id ; + +if ( req -> ie && req -> ie_len ) { +memcpy ( & auth_data -> data [ auth_data -> data_len ] , +req -> ie , req -> ie_len ) ; +auth_data -> data_len += req -> ie_len ; +} + +if ( req -> key && req -> key_len ) { +auth_data -> key_len = req -> key_len ; +auth_data -> key_idx = req -> key_idx ; +memcpy ( auth_data -> key , req -> key , req -> key_len ) ; +} + +auth_data -> algorithm = auth_alg ; + + + +if ( ifmgd -> auth_data ) { +if ( cont_auth && req -> auth_type == nl80211_authtype_sae ) { +auth_data -> peer_confirmed = +ifmgd -> auth_data -> peer_confirmed ; +} +ieee80211_destroy_auth_data ( sdata , cont_auth ) ; +} + + +ifmgd -> auth_data = auth_data ; + + + + + + +if ( cont_auth && req -> auth_type == nl80211_authtype_sae && +auth_data -> peer_confirmed && auth_data -> sae_trans == 2 ) +ieee80211_mark_sta_auth ( sdata ) ; + +if ( ifmgd -> associated ) { +u8 frame_buf [ ieee80211_deauth_frame_len ] ; + +sdata_info ( sdata , +"disconnect from ap %pm for new auth to %pm\n" , +sdata -> vif . cfg . ap_addr , auth_data -> ap_addr ) ; +ieee80211_set_disassoc ( sdata , ieee80211_stype_deauth , +wlan_reason_unspecified , +false , frame_buf ) ; + +ieee80211_report_disconnect ( sdata , frame_buf , +sizeof ( frame_buf ) , true , +wlan_reason_unspecified , +false ) ; +} + +sdata_info ( sdata , "authenticate with %pm\n" , auth_data -> ap_addr ) ; + + +memcpy ( sdata -> vif . cfg . ap_addr , auth_data -> ap_addr , eth_alen ) ; + +err = ieee80211_prep_connection ( sdata , req -> bss , req -> link_id , +req -> ap_mld_addr , cont_auth , false ) ; +if ( err ) +goto err_clear ; + +err = ieee80211_auth ( sdata ) ; +if ( err ) { +sta_info_destroy_addr ( sdata , auth_data -> ap_addr ) ; +goto err_clear ; +} + + +cfg80211_ref_bss ( local -> hw . wiphy , auth_data -> bss ) ; +return 0 ; + +err_clear : +if ( ! sdata -> vif . valid_links ) { +eth_zero_addr ( sdata -> deflink . u . mgd . bssid ) ; +ieee80211_link_info_change_notify ( sdata , & sdata -> deflink , +bss_changed_bssid ) ; +mutex_lock ( & sdata -> local -> mtx ) ; +ieee80211_link_release_channel ( & sdata -> deflink ) ; +mutex_unlock ( & sdata -> local -> mtx ) ; +} +ifmgd -> auth_data = null ; +kfree ( auth_data ) ; +return err ; +} + +static ieee80211_conn_flags_t +ieee80211_setup_assoc_link ( struct ieee80211_sub_if_data * sdata , +struct ieee80211_mgd_assoc_data * assoc_data , +struct cfg80211_assoc_request * req , +ieee80211_conn_flags_t conn_flags , +unsigned int link_id ) +{ +struct ieee80211_local * local = sdata -> local ; +const struct cfg80211_bss_ies * beacon_ies ; +struct ieee80211_supported_band * sband ; +const struct element * ht_elem , * vht_elem ; +struct ieee80211_link_data * link ; +struct cfg80211_bss * cbss ; +struct ieee80211_bss * bss ; +bool is_5ghz , is_6ghz ; + +cbss = assoc_data -> link [ link_id ] . bss ; +if ( warn_on ( ! cbss ) ) +return 0 ; + +bss = ( void * ) cbss -> priv ; + +sband = local -> hw . wiphy -> bands [ cbss -> channel -> band ] ; +if ( warn_on ( ! sband ) ) +return 0 ; + +link = sdata_dereference ( sdata -> link [ link_id ] , sdata ) ; +if ( warn_on ( ! link ) ) +return 0 ; + +is_5ghz = cbss -> channel -> band == nl80211_band_5ghz ; +is_6ghz = cbss -> channel -> band == nl80211_band_6ghz ; + + +if ( ! req -> ap_mld_addr ) { +assoc_data -> supp_rates = bss -> supp_rates ; +assoc_data -> supp_rates_len = bss -> supp_rates_len ; +} + + +if ( req -> links [ link_id ] . elems_len ) { +memcpy ( assoc_data -> ie_pos , req -> links [ link_id ] . elems , +req -> links [ link_id ] . elems_len ) ; +assoc_data -> link [ link_id ] . elems = assoc_data -> ie_pos ; +assoc_data -> link [ link_id ] . elems_len = req -> links [ link_id ] . elems_len ; +assoc_data -> ie_pos += req -> links [ link_id ] . elems_len ; +} + +rcu_read_lock ( ) ; +ht_elem = ieee80211_bss_get_elem ( cbss , wlan_eid_ht_operation ) ; +if ( ht_elem && ht_elem -> datalen >= sizeof ( struct ieee80211_ht_operation ) ) +assoc_data -> link [ link_id ] . ap_ht_param = +( ( struct ieee80211_ht_operation * ) ( ht_elem -> data ) ) -> ht_param ; +else if ( ! is_6ghz ) +conn_flags |= ieee80211_conn_disable_ht ; +vht_elem = ieee80211_bss_get_elem ( cbss , wlan_eid_vht_capability ) ; +if ( vht_elem && vht_elem -> datalen >= sizeof ( struct ieee80211_vht_cap ) ) { +memcpy ( & assoc_data -> link [ link_id ] . ap_vht_cap , vht_elem -> data , +sizeof ( struct ieee80211_vht_cap ) ) ; +} else if ( is_5ghz ) { +link_info ( link , +"vht capa missing/short, disabling vht/he/eht\n" ) ; +conn_flags |= ieee80211_conn_disable_vht | +ieee80211_conn_disable_he | +ieee80211_conn_disable_eht ; +} +rcu_read_unlock ( ) ; + +link -> u . mgd . beacon_crc_valid = false ; +link -> u . mgd . dtim_period = 0 ; +link -> u . mgd . have_beacon = false ; + + +if ( ! ( conn_flags & ieee80211_conn_disable_ht ) ) { +struct ieee80211_sta_ht_cap sta_ht_cap ; + +memcpy ( & sta_ht_cap , & sband -> ht_cap , sizeof ( sta_ht_cap ) ) ; +ieee80211_apply_htcap_overrides ( sdata , & sta_ht_cap ) ; +} + +link -> conf -> eht_puncturing = 0 ; + +rcu_read_lock ( ) ; +beacon_ies = rcu_dereference ( cbss -> beacon_ies ) ; +if ( beacon_ies ) { +const struct ieee80211_eht_operation * eht_oper ; +const struct element * elem ; +u8 dtim_count = 0 ; + +ieee80211_get_dtim ( beacon_ies , & dtim_count , +& link -> u . mgd . dtim_period ) ; + +sdata -> deflink . u . mgd . have_beacon = true ; + +if ( ieee80211_hw_check ( & local -> hw , timing_beacon_only ) ) { +link -> conf -> sync_tsf = beacon_ies -> tsf ; +link -> conf -> sync_device_ts = bss -> device_ts_beacon ; +link -> conf -> sync_dtim_count = dtim_count ; +} + +elem = cfg80211_find_ext_elem ( wlan_eid_ext_multiple_bssid_configuration , +beacon_ies -> data , beacon_ies -> len ) ; +if ( elem && elem -> datalen >= 3 ) +link -> conf -> profile_periodicity = elem -> data [ 2 ] ; +else +link -> conf -> profile_periodicity = 0 ; + +elem = cfg80211_find_elem ( wlan_eid_ext_capability , +beacon_ies -> data , beacon_ies -> len ) ; +if ( elem && elem -> datalen >= 11 && +( elem -> data [ 10 ] & wlan_ext_capa11_ema_support ) ) +link -> conf -> ema_ap = true ; +else +link -> conf -> ema_ap = false ; + +elem = cfg80211_find_ext_elem ( wlan_eid_ext_eht_operation , +beacon_ies -> data , beacon_ies -> len ) ; +eht_oper = ( const void * ) ( elem -> data + 1 ) ; + +if ( elem && +ieee80211_eht_oper_size_ok ( ( const void * ) ( elem -> data + 1 ) , +elem -> datalen - 1 ) && +( eht_oper -> params & ieee80211_eht_oper_info_present ) && +( eht_oper -> params & ieee80211_eht_oper_disabled_subchannel_bitmap_present ) ) { +const struct ieee80211_eht_operation_info * info = +( void * ) eht_oper -> optional ; +const u8 * disable_subchannel_bitmap = info -> optional ; +u16 bitmap ; + +bitmap = get_unaligned_le16 ( disable_subchannel_bitmap ) ; +if ( cfg80211_valid_disable_subchannel_bitmap ( & bitmap , +& link -> conf -> chandef ) ) +ieee80211_handle_puncturing_bitmap ( link , +eht_oper , +bitmap , +null ) ; +else +conn_flags |= ieee80211_conn_disable_eht ; +} +} +rcu_read_unlock ( ) ; + +if ( bss -> corrupt_data ) { +char * corrupt_type = "data" ; + +if ( bss -> corrupt_data & ieee80211_bss_corrupt_beacon ) { +if ( bss -> corrupt_data & ieee80211_bss_corrupt_probe_resp ) +corrupt_type = "beacon and probe response" ; +else +corrupt_type = "beacon" ; +} else if ( bss -> corrupt_data & ieee80211_bss_corrupt_probe_resp ) { +corrupt_type = "probe response" ; +} +sdata_info ( sdata , "associating to ap %pm with corrupt %s\n" , +cbss -> bssid , corrupt_type ) ; +} + +if ( link -> u . mgd . req_smps == ieee80211_smps_automatic ) { +if ( sdata -> u . mgd . powersave ) +link -> smps_mode = ieee80211_smps_dynamic ; +else +link -> smps_mode = ieee80211_smps_off ; +} else { +link -> smps_mode = link -> u . mgd . req_smps ; +} + +return conn_flags ; +} + +int ieee80211_mgd_assoc ( struct ieee80211_sub_if_data * sdata , +struct cfg80211_assoc_request * req ) +{ +unsigned int assoc_link_id = req -> link_id < 0 ? 0 : req -> link_id ; +struct ieee80211_local * local = sdata -> local ; +struct ieee80211_if_managed * ifmgd = & sdata -> u . mgd ; +struct ieee80211_mgd_assoc_data * assoc_data ; +const struct element * ssid_elem ; +struct ieee80211_vif_cfg * vif_cfg = & sdata -> vif . cfg ; +ieee80211_conn_flags_t conn_flags = 0 ; +struct ieee80211_link_data * link ; +struct cfg80211_bss * cbss ; +struct ieee80211_bss * bss ; +bool override ; +int i , err ; +size_t size = sizeof ( * assoc_data ) + req -> ie_len ; + +for ( i = 0 ; i < ieee80211_mld_max_num_links ; i ++ ) +size += req -> links [ i ] . elems_len ; + + +if ( sdata -> u . mgd . use_4addr && req -> link_id >= 0 ) +return - eopnotsupp ; + +assoc_data = kzalloc ( size , gfp_kernel ) ; +if ( ! assoc_data ) +return - enomem ; + +cbss = req -> link_id < 0 ? req -> bss : req -> links [ req -> link_id ] . bss ; + +rcu_read_lock ( ) ; +ssid_elem = ieee80211_bss_get_elem ( cbss , wlan_eid_ssid ) ; +if ( ! ssid_elem || ssid_elem -> datalen > sizeof ( assoc_data -> ssid ) ) { +rcu_read_unlock ( ) ; +kfree ( assoc_data ) ; +return - einval ; +} +memcpy ( assoc_data -> ssid , ssid_elem -> data , ssid_elem -> datalen ) ; +assoc_data -> ssid_len = ssid_elem -> datalen ; +memcpy ( vif_cfg -> ssid , assoc_data -> ssid , assoc_data -> ssid_len ) ; +vif_cfg -> ssid_len = assoc_data -> ssid_len ; +rcu_read_unlock ( ) ; + +if ( req -> ap_mld_addr ) { +for ( i = 0 ; i < ieee80211_mld_max_num_links ; i ++ ) { +if ( ! req -> links [ i ] . bss ) +continue ; +link = sdata_dereference ( sdata -> link [ i ] , sdata ) ; +if ( link ) +ether_addr_copy ( assoc_data -> link [ i ] . addr , +link -> conf -> addr ) ; +else +eth_random_addr ( assoc_data -> link [ i ] . addr ) ; +} +} else { +memcpy ( assoc_data -> link [ 0 ] . addr , sdata -> vif . addr , eth_alen ) ; +} + +assoc_data -> s1g = cbss -> channel -> band == nl80211_band_s1ghz ; + +memcpy ( assoc_data -> ap_addr , +req -> ap_mld_addr ? : req -> bss -> bssid , +eth_alen ) ; + +if ( ifmgd -> associated ) { +u8 frame_buf [ ieee80211_deauth_frame_len ] ; + +sdata_info ( sdata , +"disconnect from ap %pm for new assoc to %pm\n" , +sdata -> vif . cfg . ap_addr , assoc_data -> ap_addr ) ; +ieee80211_set_disassoc ( sdata , ieee80211_stype_deauth , +wlan_reason_unspecified , +false , frame_buf ) ; + +ieee80211_report_disconnect ( sdata , frame_buf , +sizeof ( frame_buf ) , true , +wlan_reason_unspecified , +false ) ; +} + +if ( ifmgd -> auth_data && ! ifmgd -> auth_data -> done ) { +err = - ebusy ; +goto err_free ; +} + +if ( ifmgd -> assoc_data ) { +err = - ebusy ; +goto err_free ; +} + +if ( ifmgd -> auth_data ) { +bool match ; + + +match = ether_addr_equal ( ifmgd -> auth_data -> ap_addr , +assoc_data -> ap_addr ) && +ifmgd -> auth_data -> link_id == req -> link_id ; +ieee80211_destroy_auth_data ( sdata , match ) ; +} + + + +bss = ( void * ) cbss -> priv ; +assoc_data -> wmm = bss -> wmm_used && +( local -> hw . queues >= ieee80211_num_acs ) ; + + + + + + + + +for ( i = 0 ; i < req -> crypto . n_ciphers_pairwise ; i ++ ) { +if ( req -> crypto . ciphers_pairwise [ i ] == wlan_cipher_suite_wep40 || +req -> crypto . ciphers_pairwise [ i ] == wlan_cipher_suite_tkip || +req -> crypto . ciphers_pairwise [ i ] == wlan_cipher_suite_wep104 ) { +conn_flags |= ieee80211_conn_disable_ht ; +conn_flags |= ieee80211_conn_disable_vht ; +conn_flags |= ieee80211_conn_disable_he ; +conn_flags |= ieee80211_conn_disable_eht ; +netdev_info ( sdata -> dev , +"disabling ht/vht/he due to wep/tkip use\n" ) ; +} +} + + +if ( ! bss -> wmm_used ) { +conn_flags |= ieee80211_conn_disable_ht ; +conn_flags |= ieee80211_conn_disable_vht ; +conn_flags |= ieee80211_conn_disable_he ; +conn_flags |= ieee80211_conn_disable_eht ; +netdev_info ( sdata -> dev , +"disabling ht/vht/he as wmm/qos is not supported by the ap\n" ) ; +} + +if ( req -> flags & assoc_req_disable_ht ) { +mlme_dbg ( sdata , "ht disabled by flag, disabling ht/vht/he\n" ) ; +conn_flags |= ieee80211_conn_disable_ht ; +conn_flags |= ieee80211_conn_disable_vht ; +conn_flags |= ieee80211_conn_disable_he ; +conn_flags |= ieee80211_conn_disable_eht ; +} + +if ( req -> flags & assoc_req_disable_vht ) { +mlme_dbg ( sdata , "vht disabled by flag, disabling vht\n" ) ; +conn_flags |= ieee80211_conn_disable_vht ; +} + +if ( req -> flags & assoc_req_disable_he ) { +mlme_dbg ( sdata , "he disabled by flag, disabling he/eht\n" ) ; +conn_flags |= ieee80211_conn_disable_he ; +conn_flags |= ieee80211_conn_disable_eht ; +} + +if ( req -> flags & assoc_req_disable_eht ) +conn_flags |= ieee80211_conn_disable_eht ; + +memcpy ( & ifmgd -> ht_capa , & req -> ht_capa , sizeof ( ifmgd -> ht_capa ) ) ; +memcpy ( & ifmgd -> ht_capa_mask , & req -> ht_capa_mask , +sizeof ( ifmgd -> ht_capa_mask ) ) ; + +memcpy ( & ifmgd -> vht_capa , & req -> vht_capa , sizeof ( ifmgd -> vht_capa ) ) ; +memcpy ( & ifmgd -> vht_capa_mask , & req -> vht_capa_mask , +sizeof ( ifmgd -> vht_capa_mask ) ) ; + +memcpy ( & ifmgd -> s1g_capa , & req -> s1g_capa , sizeof ( ifmgd -> s1g_capa ) ) ; +memcpy ( & ifmgd -> s1g_capa_mask , & req -> s1g_capa_mask , +sizeof ( ifmgd -> s1g_capa_mask ) ) ; + +if ( req -> ie && req -> ie_len ) { +memcpy ( assoc_data -> ie , req -> ie , req -> ie_len ) ; +assoc_data -> ie_len = req -> ie_len ; +assoc_data -> ie_pos = assoc_data -> ie + assoc_data -> ie_len ; +} else { +assoc_data -> ie_pos = assoc_data -> ie ; +} + +if ( req -> fils_kek ) { + +if ( warn_on ( req -> fils_kek_len > fils_max_kek_len ) ) { +err = - einval ; +goto err_free ; +} +memcpy ( assoc_data -> fils_kek , req -> fils_kek , +req -> fils_kek_len ) ; +assoc_data -> fils_kek_len = req -> fils_kek_len ; +} + +if ( req -> fils_nonces ) +memcpy ( assoc_data -> fils_nonces , req -> fils_nonces , +2 * fils_nonce_len ) ; + + +assoc_data -> timeout = jiffies ; +assoc_data -> timeout_started = true ; + +assoc_data -> assoc_link_id = assoc_link_id ; + +if ( req -> ap_mld_addr ) { +for ( i = 0 ; i < array_size ( assoc_data -> link ) ; i ++ ) { +assoc_data -> link [ i ] . conn_flags = conn_flags ; +assoc_data -> link [ i ] . bss = req -> links [ i ] . bss ; +} + + +err = ieee80211_vif_set_links ( sdata , bit ( assoc_link_id ) ) ; +if ( err ) +goto err_clear ; +} else { +assoc_data -> link [ 0 ] . conn_flags = conn_flags ; +assoc_data -> link [ 0 ] . bss = cbss ; +} + +link = sdata_dereference ( sdata -> link [ assoc_link_id ] , sdata ) ; +if ( warn_on ( ! link ) ) { +err = - einval ; +goto err_clear ; +} + + +conn_flags |= link -> u . mgd . conn_flags ; +conn_flags |= ieee80211_setup_assoc_link ( sdata , assoc_data , req , +conn_flags , assoc_link_id ) ; +override = link -> u . mgd . conn_flags != conn_flags ; +link -> u . mgd . conn_flags |= conn_flags ; + +if ( warn ( ( sdata -> vif . driver_flags & ieee80211_vif_supports_uapsd ) && +ieee80211_hw_check ( & local -> hw , ps_nullfunc_stack ) , +"u-apsd not supported with hw_ps_nullfunc_stack\n" ) ) +sdata -> vif . driver_flags &= ~ ieee80211_vif_supports_uapsd ; + +if ( bss -> wmm_used && bss -> uapsd_supported && +( sdata -> vif . driver_flags & ieee80211_vif_supports_uapsd ) ) { +assoc_data -> uapsd = true ; +ifmgd -> flags |= ieee80211_sta_uapsd_enabled ; +} else { +assoc_data -> uapsd = false ; +ifmgd -> flags &= ~ ieee80211_sta_uapsd_enabled ; +} + +if ( req -> prev_bssid ) +memcpy ( assoc_data -> prev_ap_addr , req -> prev_bssid , eth_alen ) ; + +if ( req -> use_mfp ) { +ifmgd -> mfp = ieee80211_mfp_required ; +ifmgd -> flags |= ieee80211_sta_mfp_enabled ; +} else { +ifmgd -> mfp = ieee80211_mfp_disabled ; +ifmgd -> flags &= ~ ieee80211_sta_mfp_enabled ; +} + +if ( req -> flags & assoc_req_use_rrm ) +ifmgd -> flags |= ieee80211_sta_enable_rrm ; +else +ifmgd -> flags &= ~ ieee80211_sta_enable_rrm ; + +if ( req -> crypto . control_port ) +ifmgd -> flags |= ieee80211_sta_control_port ; +else +ifmgd -> flags &= ~ ieee80211_sta_control_port ; + +sdata -> control_port_protocol = req -> crypto . control_port_ethertype ; +sdata -> control_port_no_encrypt = req -> crypto . control_port_no_encrypt ; +sdata -> control_port_over_nl80211 = +req -> crypto . control_port_over_nl80211 ; +sdata -> control_port_no_preauth = req -> crypto . control_port_no_preauth ; + + +ifmgd -> assoc_data = assoc_data ; + +for ( i = 0 ; i < array_size ( assoc_data -> link ) ; i ++ ) { +if ( ! assoc_data -> link [ i ] . bss ) +continue ; +if ( i == assoc_data -> assoc_link_id ) +continue ; + +err = ieee80211_prep_channel ( sdata , null , assoc_data -> link [ i ] . bss , +& assoc_data -> link [ i ] . conn_flags ) ; +if ( err ) +goto err_clear ; +} + + +memcpy ( sdata -> vif . cfg . ap_addr , assoc_data -> ap_addr , eth_alen ) ; + +err = ieee80211_prep_connection ( sdata , cbss , req -> link_id , +req -> ap_mld_addr , true , override ) ; +if ( err ) +goto err_clear ; + +assoc_data -> link [ assoc_data -> assoc_link_id ] . conn_flags = +link -> u . mgd . conn_flags ; + +if ( ieee80211_hw_check ( & sdata -> local -> hw , need_dtim_before_assoc ) ) { +const struct cfg80211_bss_ies * beacon_ies ; + +rcu_read_lock ( ) ; +beacon_ies = rcu_dereference ( req -> bss -> beacon_ies ) ; + +if ( beacon_ies ) { + + + + +sdata_info ( sdata , "waiting for beacon from %pm\n" , +link -> u . mgd . bssid ) ; +assoc_data -> timeout = tu_to_exp_time ( req -> bss -> beacon_interval ) ; +assoc_data -> timeout_started = true ; +assoc_data -> need_beacon = true ; +} +rcu_read_unlock ( ) ; +} + +run_again ( sdata , assoc_data -> timeout ) ; + +return 0 ; +err_clear : +eth_zero_addr ( sdata -> deflink . u . mgd . bssid ) ; +ieee80211_link_info_change_notify ( sdata , & sdata -> deflink , +bss_changed_bssid ) ; +ifmgd -> assoc_data = null ; +err_free : +kfree ( assoc_data ) ; +return err ; +} + +int ieee80211_mgd_deauth ( struct ieee80211_sub_if_data * sdata , +struct cfg80211_deauth_request * req ) +{ +struct ieee80211_if_managed * ifmgd = & sdata -> u . mgd ; +u8 frame_buf [ ieee80211_deauth_frame_len ] ; +bool tx = ! req -> local_state_change ; +struct ieee80211_prep_tx_info info = { +. subtype = ieee80211_stype_deauth , +} ; + +if ( ifmgd -> auth_data && +ether_addr_equal ( ifmgd -> auth_data -> ap_addr , req -> bssid ) ) { +sdata_info ( sdata , +"aborting authentication with %pm by local choice (reason: %u=%s)\n" , +req -> bssid , req -> reason_code , +ieee80211_get_reason_code_string ( req -> reason_code ) ) ; + +drv_mgd_prepare_tx ( sdata -> local , sdata , & info ) ; +ieee80211_send_deauth_disassoc ( sdata , req -> bssid , req -> bssid , +ieee80211_stype_deauth , +req -> reason_code , tx , +frame_buf ) ; +ieee80211_destroy_auth_data ( sdata , false ) ; +ieee80211_report_disconnect ( sdata , frame_buf , +sizeof ( frame_buf ) , true , +req -> reason_code , false ) ; +drv_mgd_complete_tx ( sdata -> local , sdata , & info ) ; +return 0 ; +} + +if ( ifmgd -> assoc_data && +ether_addr_equal ( ifmgd -> assoc_data -> ap_addr , req -> bssid ) ) { +sdata_info ( sdata , +"aborting association with %pm by local choice (reason: %u=%s)\n" , +req -> bssid , req -> reason_code , +ieee80211_get_reason_code_string ( req -> reason_code ) ) ; + +drv_mgd_prepare_tx ( sdata -> local , sdata , & info ) ; +ieee80211_send_deauth_disassoc ( sdata , req -> bssid , req -> bssid , +ieee80211_stype_deauth , +req -> reason_code , tx , +frame_buf ) ; +ieee80211_destroy_assoc_data ( sdata , assoc_abandon ) ; +ieee80211_report_disconnect ( sdata , frame_buf , +sizeof ( frame_buf ) , true , +req -> reason_code , false ) ; +return 0 ; +} + +if ( ifmgd -> associated && +ether_addr_equal ( sdata -> vif . cfg . ap_addr , req -> bssid ) ) { +sdata_info ( sdata , +"deauthenticating from %pm by local choice (reason: %u=%s)\n" , +req -> bssid , req -> reason_code , +ieee80211_get_reason_code_string ( req -> reason_code ) ) ; + +ieee80211_set_disassoc ( sdata , ieee80211_stype_deauth , +req -> reason_code , tx , frame_buf ) ; +ieee80211_report_disconnect ( sdata , frame_buf , +sizeof ( frame_buf ) , true , +req -> reason_code , false ) ; +drv_mgd_complete_tx ( sdata -> local , sdata , & info ) ; +return 0 ; +} + +return - enotconn ; +} + +int ieee80211_mgd_disassoc ( struct ieee80211_sub_if_data * sdata , +struct cfg80211_disassoc_request * req ) +{ +u8 frame_buf [ ieee80211_deauth_frame_len ] ; + +if ( ! sdata -> u . mgd . associated || +memcmp ( sdata -> vif . cfg . ap_addr , req -> ap_addr , eth_alen ) ) +return - enotconn ; + +sdata_info ( sdata , +"disassociating from %pm by local choice (reason: %u=%s)\n" , +req -> ap_addr , req -> reason_code , +ieee80211_get_reason_code_string ( req -> reason_code ) ) ; + +ieee80211_set_disassoc ( sdata , ieee80211_stype_disassoc , +req -> reason_code , ! req -> local_state_change , +frame_buf ) ; + +ieee80211_report_disconnect ( sdata , frame_buf , sizeof ( frame_buf ) , true , +req -> reason_code , false ) ; + +return 0 ; +} + +void ieee80211_mgd_stop_link ( struct ieee80211_link_data * link ) +{ +cancel_work_sync ( & link -> u . mgd . request_smps_work ) ; +cancel_work_sync ( & link -> u . mgd . chswitch_work ) ; +} + +void ieee80211_mgd_stop ( struct ieee80211_sub_if_data * sdata ) +{ +struct ieee80211_if_managed * ifmgd = & sdata -> u . mgd ; + + + + + + +cancel_work_sync ( & ifmgd -> monitor_work ) ; +cancel_work_sync ( & ifmgd -> beacon_connection_loss_work ) ; +cancel_work_sync ( & ifmgd -> csa_connection_drop_work ) ; +cancel_delayed_work_sync ( & ifmgd -> tdls_peer_del_work ) ; + +sdata_lock ( sdata ) ; +if ( ifmgd -> assoc_data ) +ieee80211_destroy_assoc_data ( sdata , assoc_timeout ) ; +if ( ifmgd -> auth_data ) +ieee80211_destroy_auth_data ( sdata , false ) ; +spin_lock_bh ( & ifmgd -> teardown_lock ) ; +if ( ifmgd -> teardown_skb ) { +kfree_skb ( ifmgd -> teardown_skb ) ; +ifmgd -> teardown_skb = null ; +ifmgd -> orig_teardown_skb = null ; +} +kfree ( ifmgd -> assoc_req_ies ) ; +ifmgd -> assoc_req_ies = null ; +ifmgd -> assoc_req_ies_len = 0 ; +spin_unlock_bh ( & ifmgd -> teardown_lock ) ; +del_timer_sync ( & ifmgd -> timer ) ; +sdata_unlock ( sdata ) ; +} + +void ieee80211_cqm_rssi_notify ( struct ieee80211_vif * vif , +enum nl80211_cqm_rssi_threshold_event rssi_event , +s32 rssi_level , +gfp_t gfp ) +{ +struct ieee80211_sub_if_data * sdata = vif_to_sdata ( vif ) ; + +trace_api_cqm_rssi_notify ( sdata , rssi_event , rssi_level ) ; + +cfg80211_cqm_rssi_notify ( sdata -> dev , rssi_event , rssi_level , gfp ) ; +} +export_symbol ( ieee80211_cqm_rssi_notify ) ; + +void ieee80211_cqm_beacon_loss_notify ( struct ieee80211_vif * vif , gfp_t gfp ) +{ +struct ieee80211_sub_if_data * sdata = vif_to_sdata ( vif ) ; + +trace_api_cqm_beacon_loss_notify ( sdata -> local , sdata ) ; + +cfg80211_cqm_beacon_loss_notify ( sdata -> dev , gfp ) ; +} +export_symbol ( ieee80211_cqm_beacon_loss_notify ) ; + +static void _ieee80211_enable_rssi_reports ( struct ieee80211_sub_if_data * sdata , +int rssi_min_thold , +int rssi_max_thold ) +{ +trace_api_enable_rssi_reports ( sdata , rssi_min_thold , rssi_max_thold ) ; + +if ( warn_on ( sdata -> vif . type != nl80211_iftype_station ) ) +return ; + + + + + + +sdata -> u . mgd . rssi_min_thold = rssi_min_thold * 16 ; +sdata -> u . mgd . rssi_max_thold = rssi_max_thold * 16 ; +} + +void ieee80211_enable_rssi_reports ( struct ieee80211_vif * vif , +int rssi_min_thold , +int rssi_max_thold ) +{ +struct ieee80211_sub_if_data * sdata = vif_to_sdata ( vif ) ; + +warn_on ( rssi_min_thold == rssi_max_thold || +rssi_min_thold > rssi_max_thold ) ; + +_ieee80211_enable_rssi_reports ( sdata , rssi_min_thold , +rssi_max_thold ) ; +} +export_symbol ( ieee80211_enable_rssi_reports ) ; + +void ieee80211_disable_rssi_reports ( struct ieee80211_vif * vif ) +{ +struct ieee80211_sub_if_data * sdata = vif_to_sdata ( vif ) ; + +_ieee80211_enable_rssi_reports ( sdata , 0 , 0 ) ; +} +export_symbol ( ieee80211_disable_rssi_reports ) ; diff --git a/static-analysis/test_inputs/simple_if.c b/static-analysis/test_inputs/simple_if.c new file mode 100644 index 0000000..4b7ff37 --- /dev/null +++ b/static-analysis/test_inputs/simple_if.c @@ -0,0 +1,11 @@ +void foo(int *x) { + *x = 5; + if (x) + *x = 6; +} + +void bar(int *x) { + *x = 5; + while (x) + x = 6; +} diff --git a/static-analysis/utils.c b/static-analysis/utils.c new file mode 100644 index 0000000..ad5b7f9 --- /dev/null +++ b/static-analysis/utils.c @@ -0,0 +1,41 @@ +#include "compiler.h" + +struct lexeme *find(struct lexeme *l, struct lexeme *rm, char *str) { + if (!rm) rm = LEXEMES + N_LEXEMES; + int paren_depth = 0, + delta = (l <= rm) ? 1 : -1; + for (; l != rm; l += delta) { + paren_depth += LEXSTR(l, "(") - LEXSTR(l, ")"); + paren_depth += LEXSTR(l, "[") - LEXSTR(l, "]"); + paren_depth += LEXSTR(l, "{") - LEXSTR(l, "}"); + if (!paren_depth && LEXSTR(l, str)) + return l; + } + return NULL; +} + +// TODO: fails on while (...) if (...) ...; else ...; +struct lexeme *match_body(struct lexeme *l) { + int paren_depth = 0; + for (; l != LEXEMES + N_LEXEMES; l++) { + if (!paren_depth && LEXSTR(l, "{")) { + struct lexeme *match = find(l, NULL, "}"); + return match ? match + 1 : 0; + } + paren_depth += LEXSTR(l, "(") - LEXSTR(l, ")"); + paren_depth += LEXSTR(l, "[") - LEXSTR(l, "]"); + paren_depth += LEXSTR(l, "{") - LEXSTR(l, "}"); + if (!paren_depth && LEXSTR(l, ";")) + return l + 1; + } + return NULL; +} + +// http://www.cse.yorku.ca/~oz/hash.html +uint64_t hash_range(struct lexrange range) { + unsigned long hash = 5381; + for (struct lexeme *l = range.lm; l < range.rm; l++) + for (char *c = l->string; *c; c++) + hash = ((hash << 5) + hash) + (*c); + return hash; +} |