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* if_wg: pass back result of selftests and enable in CIJason A. Donenfeld2021-05-192-11/+25
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Hopefully bad tests will cause the module to not insert, so the CI picks this up. It looks like a failure to insert the module at the moment actually causes another crash, though: Kernel page fault with the following non-sleepable locks held: exclusive sleep mutex if_cloners lock (if_cloners lock) r = 0 (0xffffffff81d9a9b8) locked @ /usr/src/sys/net/if_clone.c:447 stack backtrace: #0 0xffffffff80c66181 at witness_debugger+0x71 #1 0xffffffff80c6729d at witness_warn+0x40d #2 0xffffffff8109499e at trap_pfault+0x7e #3 0xffffffff81093fab at trap+0x2ab #4 0xffffffff810687f8 at calltrap+0x8 #5 0xffffffff82925610 at wg_module_event_handler+0x120 #6 0xffffffff80bd53c3 at module_register_init+0xd3 #7 0xffffffff80bc5c61 at linker_load_module+0xc01 #8 0xffffffff80bc73b9 at kern_kldload+0xe9 #9 0xffffffff80bc74db at sys_kldload+0x5b #10 0xffffffff810952f7 at amd64_syscall+0x147 #11 0xffffffff8106911e at fast_syscall_common+0xf8 Fatal trap 12: page fault while in kernel mode cpuid = 9; apic id = 09 fault virtual address = 0x70 fault code = supervisor read data, page not present instruction pointer = 0x20:0xffffffff80d18e37 stack pointer = 0x28:0xfffffe0115fb35a0 frame pointer = 0x28:0xfffffe0115fb35c0 code segment = base 0x0, limit 0xfffff, type 0x1b = DPL 0, pres 1, long 1, def32 0, gran 1 processor eflags = interrupt enabled, resume, IOPL = 0 current process = 1587 (kldload) trap number = 12 panic: page fault cpuid = 9 time = 1621380034 KDB: stack backtrace: #0 0xffffffff80c44695 at kdb_backtrace+0x65 #1 0xffffffff80bf9d01 at vpanic+0x181 #2 0xffffffff80bf9ad3 at panic+0x43 #3 0xffffffff81094917 at trap_fatal+0x387 #4 0xffffffff810949b7 at trap_pfault+0x97 #5 0xffffffff81093fab at trap+0x2ab #6 0xffffffff810687f8 at calltrap+0x8 #7 0xffffffff82925610 at wg_module_event_handler+0x120 #8 0xffffffff80bd53c3 at module_register_init+0xd3 #9 0xffffffff80bc5c61 at linker_load_module+0xc01 #10 0xffffffff80bc73b9 at kern_kldload+0xe9 #11 0xffffffff80bc74db at sys_kldload+0x5b #12 0xffffffff810952f7 at amd64_syscall+0x147 #13 0xffffffff8106911e at fast_syscall_common+0xf8 Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
* wg_noise: cleanup counter algorithmJason A. Donenfeld2021-05-031-6/+7
| | | | Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
* wg_cookie: zero before init in selftest for witnessJason A. Donenfeld2021-05-021-0/+3
| | | | Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
* if_wg: count on peers always having a remoteJason A. Donenfeld2021-04-241-0/+2
| | | | | | | We do a pretty nasty hack in the allowedips selftest to avoid having to allocate more memory. Seems to work. Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
* selftests: capitalise fail messages for readabilityMatt Dunwoodie2021-04-232-4/+4
| | | | Signed-off-by: Matt Dunwoodie <ncon@noconroy.net>
* wg_cookie: hash vnet into ratelimiter entryJason A. Donenfeld2021-04-221-14/+14
| | | | | | IPs mean different things per-vnet. Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
* if_wg: properly use rn_inithead and rn_detachheadJason A. Donenfeld2021-04-221-11/+35
| | | | Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
* wg_cookie: allocate ratelimit table staticallyMatt Dunwoodie2021-04-231-3/+2
| | | | | | | | | | | | | | | We can simplify the ratelimit init/deinit calls by allocating the table statically, that is by not using hashinit_flags. That function ended up doing some unnecessary calculation and meant that the mask couldn't be constant. By increasing the size of struct ratelimit, this also caught a nasty (but benign) bug, where ratelimit_pool was initialised to allocate sizeof(struct ratelimit) and not sizeof(struct ratelimit_entry). It has been this way since FreeBSD tree and I didn't pick up on it while moving the uma_zcreate call to wg_cookie. Signed-off-by: Matt Dunwoodie <ncon@noconroy.net>
* wg_cookie: make ratelimiter globalMatt Dunwoodie2021-04-231-21/+13
| | | | Signed-off-by: Matt Dunwoodie <ncon@noconroy.net>
* selftests: fixup headersJason A. Donenfeld2021-04-223-11/+14
| | | | | | Also remove the stale entry from the TODO list. Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
* wg_noise: add selftestMatt Dunwoodie2021-04-221-0/+91
| | | | Signed-off-by: Matt Dunwoodie <ncon@noconroy.net>
* wg_cookie: add selftestMatt Dunwoodie2021-04-221-0/+294
| | | | Signed-off-by: Matt Dunwoodie <ncon@noconroy.net>
* if_wg: port allowedips selftest from Linux code and fix bugsJason A. Donenfeld2021-04-221-0/+608
And then fix broken allowedips implementation for the static unit tests to pass. Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
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