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2016-11-16chacha20poly1305: rely on avx and avx2Jason A. Donenfeld
It turns out some FrankenVMs disable AVX but keep AVX2, causing issues. The crypto code now relies on having both AVX and AVX2 and the right features. Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2016-11-16device: better debug messageJason A. Donenfeld
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2016-11-16device: we need NONE for libpcapJason A. Donenfeld
This makes addrconf add a temporary IPv6 address, which is annoying, and currently there's not a work around for this. Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2016-11-16packets: consolidate constantsJason A. Donenfeld
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2016-11-15various: nits from willyJason A. Donenfeld
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2016-11-15tests: trim outputJason A. Donenfeld
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2016-11-15tests: use private ipv6 addressesJason A. Donenfeld
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2016-11-15socket: ensure that saddr routing can deal with interface removalJason A. Donenfeld
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2016-11-15compat: rearrangeJason A. Donenfeld
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2016-11-15debug: cleanup skb printingJason A. Donenfeld
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2016-11-15socket: keep track of src address in sending packetsJason A. Donenfeld
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2016-11-10curve25519: use kmalloc in order to not overflow stackJason A. Donenfeld
On MIPS, the IRQ and SoftIRQ handlers share the stack with whatever kernel thread was interrupted. This means that Curve25519 can be interrupted by, say, an ethernet controller, that then gets handled by a SoftIRQ. If something like l2tp is being used, which uses quite a bit of stack, then by the time the SoftIRQ handler gets to WireGuard code and calls into the stack-heavy ChaPoly functions, our 8k stack is shot. In other words, since Curve25519 is such a big consumer of stack, if it's interrupted by anything else that uses a healthy amount of stack, then disaster strikes. The solution here is just to allocate using kmalloc. This is quite ugly, and if performance becomes an issue, we might consider moving to a kmem_cache allocator, or even having each peer keep its own preallocated space. But for now, we'll try this. Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2016-11-09chacha20poly1305: don't forget version headerJason A. Donenfeld
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2016-11-07routing-table: mask self for better IP displayJason A. Donenfeld
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2016-11-07selftest: add routing table tests for small subnetsJason A. Donenfeld
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2016-11-07send: simplify handshake initiation queueing and introduce lockJason A. Donenfeld
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2016-11-07chacha20poly1305: it's just as fast to use these more simple unaligned ↵Jason A. Donenfeld
access helpers Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2016-11-07socket: use more reasonable skb paddingJason A. Donenfeld
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2016-11-06data: only uses kmem_cache for parallismJason A. Donenfeld
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2016-11-06debug: support dynamic debug on skb addrJason A. Donenfeld
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2016-11-06cookie: avoid void pointer arithmaticJason A. Donenfeld
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2016-11-06send: remove redundant time stampJason A. Donenfeld
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2016-11-06qemu: kasan needs more memoryJason A. Donenfeld
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2016-11-06qemu: use sparsemem always, for kasanJason A. Donenfeld
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2016-11-06socket: release dst on routing loopJason A. Donenfeld
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2016-11-06data: squelch compiler warning on PARALLEL=nJason A. Donenfeld
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2016-11-06data: we care about per-peer, not per-device, inflight encryptionsJason A. Donenfeld
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2016-11-05chacha20poly1305: cleanup magic constantsJason A. Donenfeld
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2016-11-05c89: the static keyword is okay in c99, but not in c89Jason A. Donenfeld
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2016-11-05qemu: fail if module selftests failJason A. Donenfeld
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2016-11-05qemu: move marker to top and flushJason A. Donenfeld
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2016-11-05qemu: work around termio race conditionJason A. Donenfeld
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2016-11-05compat: fix variable assumptionsJason A. Donenfeld
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2016-11-05qemu: move build outside of kernel dir to avoid kernel's make cleanJason A. Donenfeld
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2016-11-05socket: big refactoringJason A. Donenfeld
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2016-11-04socket: route() returns an error pointer, not NULL on failureJason A. Donenfeld
Reported-by: Cedric Buxin <cedric.buxin@izri.org> Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2016-11-04compat: some grsec have get_random_long; others do notJason A. Donenfeld
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2016-11-04data: use a memory cache for parallel ctxJason A. Donenfeld
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2016-11-04data: keep FPU on when possibleJason A. Donenfeld
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2016-11-04send: queue bundles on same CPUJason A. Donenfeld
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2016-11-04data: use smaller typesJason A. Donenfeld
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2016-11-04data: take reference to peerJason A. Donenfeld
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2016-11-04compat: stub out dst_cache for old kernelsJason A. Donenfeld
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2016-11-04socket: use dst_cache instead of handrolled cacheJason A. Donenfeld
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2016-11-03chacha20poly1305: src is different from dst on last pieceJason A. Donenfeld
This took hours of debugging. In some cases, the src and dst are different for the last piece, so the incorrect code here resulted in computing the poly1305 over the wrong data. This lead to packets being unnecessarily dropped. Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2016-11-03device: use ARPHDR_VOID instead of ARPHDR_NONEJason A. Donenfeld
These amount to the same exact thing, except that IPv6 auto configuration won't assign it a (useless) random address and add multicast routes. Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2016-11-03qemu: newer default kernelJason A. Donenfeld
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2016-11-03timers: take reference like a lookup tableJason A. Donenfeld
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2016-11-02kref: elide checksJason A. Donenfeld
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2016-11-01data: do not allow usage of keypair just before hash removalJason A. Donenfeld
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
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