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2019-02-17compat: backport ALIGN_DOWNJason A. Donenfeld
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2019-02-17compat: ipv6_stub is sometimes nullJason A. Donenfeld
On ancient kernels, ipv6_stub is sometimes null in cases where IPv6 has been disabled with a command line flag or other failures. Reported-by: Anatoli <me@anatoli.ws> Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2019-01-23netlink: use __kernel_timespec for handshake timeJason A. Donenfeld
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2019-01-23ratelimiter: totalram_pages is now a functionJason A. Donenfeld
Reported-by: Alex Xu <alex@alxu.ca> Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2019-01-23noise: replace getnstimeofday64 with ktime_get_real_ts64Jason A. Donenfeld
The former was just a wrapper around the latter, and so upstream is now removing it. Also adjust the compat kludge to deal with this. Reported-by: Alex Xu <alex@alxu.ca> Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2019-01-07global: update copyrightJason A. Donenfeld
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2018-12-18makefile: use immediate expansion and use correct template patternsJason A. Donenfeld
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2018-12-12compat: account for Clang CFIJason A. Donenfeld
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2018-12-07compat: don't undef BUILD_BUG_ON for Clang >=8Nathan Chancellor
This has been fixed upstream. To keep this hack working for toolchains that don't have it, use CONFIG_CLANG_VERSION, which was added in commit 469cb7376c06 ("kconfig: add CC_IS_CLANG and CLANG_VERSION"), introduced in 4.18. I have added the '!defined(CONFIG_CLANG_VERSION)' to keep the hack around for Android. Most custom kernel developers are using AOSP's Clang, which currently does not have the fix and might not for a while (although it is probably on Google's mind given that it has been an issue for ChromeOS on 4.19: https://crbug.com/897215). I have verified this change against my Pixel 2 kernel and 4.20-rc3 with the latest ToT Clang. Link: https://github.com/ClangBuiltLinux/linux/issues/7 Signed-off-by: Nathan Chancellor <natechancellor@gmail.com> Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2018-11-16crypto: better path resolution and more specific generated .SJason A. Donenfeld
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2018-11-05compat: csum_levels is new in 3.18 but backported to RHELJason A. Donenfeld
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2018-10-08global: rename struct wireguard_ to struct wg_Jason A. Donenfeld
This required a bit of pruning of our christmas trees. Suggested-by: Jiri Pirko <jiri@resnulli.us> Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2018-10-08compat: look in Kbuild and Makefile since they differ based on archJason A. Donenfeld
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2018-10-08global: prefix functions used in callbacks with wg_Jason A. Donenfeld
Suggested-by: Jiri Pirko <jiri@resnulli.us> Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2018-10-07compat: don't output for grep errorsDavide Garberi
This will make it so that kernels not having arch/$(SRCARCH)/Kbuild no longer give any (non-fatal) grep errors such as "grep: arch/arm64/Kbuild: No such file or directory". Signed-off-by: Davide Garberi <dade.garberi@gmail.com> Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2018-10-07compat: clang cannot handle __builtin_constant_pJason A. Donenfeld
Or, put differently, we don't want to go chasing down random versions of clang used by XDA users, so we just disable this checking on clang all together. Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2018-10-07compat: make asm/simd.h conditional on its existenceJason A. Donenfeld
Android kernels backported it, complicating things. Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2018-10-06compat: account for ancient ARM assemblerJason A. Donenfeld
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2018-10-06allowedips: remove ifdefs in favor of IS_ENABLEDJason A. Donenfeld
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2018-10-03simd: introduce useful disabling macroJason A. Donenfeld
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2018-10-02simd: refactor simd availability handlingJason A. Donenfeld
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2018-10-02simd: return a bool from simd_relaxJason A. Donenfeld
Suggested-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2018-10-02blake2s: rename arch function and use slicker le32 helperJason A. Donenfeld
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2018-10-02compat: kernels < 3.17 don't have read_cpuid_partNathan Chancellor
Use read_cpuid_part_number, which was the same thing before upstream commit af040ffc9ba1 ("ARM: make it easier to check the CPU part number correctly"). Signed-off-by: Nathan Chancellor <natechancellor@gmail.com> Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2018-09-20global: put SPDX identifier on its own lineJason A. Donenfeld
The kernel has very specific rules correlating file type with comment type, and also SPDX identifiers can't be merged with other comments. Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2018-09-20chacha20: prefer crypto_xor_cpy to avoid memmoveJason A. Donenfeld
Suggested-by: Eric Biggers <ebiggers@kernel.org> Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2018-09-19blake2s: simplify final functionJason A. Donenfeld
Suggested-by: Eric Biggers <ebiggers@kernel.org> Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2018-09-17crypto: pass simd by referenceJason A. Donenfeld
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2018-09-15simd: add __must_check annotationJason A. Donenfeld
Suggested-by: Andy Lutomirski <luto@amacapital.net> Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2018-09-06compat: move simd.h from crypto to compat since it's going upstreamJason A. Donenfeld
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2018-09-06compat: arch-namespace certain includesJason A. Donenfeld
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2018-09-06compat: support neon.h on old kernelsJason A. Donenfeld
Reported-by: Philipp Richter <richterphilipp.pops@gmail.com> Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2018-08-28compat: rng_is_initialized made it into 4.19Jason A. Donenfeld
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2018-08-04compat: better atomic acquire/release backportJason A. Donenfeld
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2018-08-03peer: ensure destruction doesn't raceJason A. Donenfeld
Completely rework peer removal to ensure peers don't jump between contexts and create races. Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2018-08-02queueing: ensure strictly ordered loads and storesJason A. Donenfeld
We don't want a consumer to read plaintext when it's supposed to be reading ciphertext, which means we need to synchronize across cores. Suggested-by: Jann Horn <jann@thejh.net> Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2018-07-18recieve: disable NAPI busy pollingThomas Gschwantner
This avoids adding one reference per peer to the napi_hash hashtable, as normally done by netif_napi_add(). Since we potentially could have up to 2^20 peers this would make busy polling very slow globally. This approach is preferable to having only a single napi struct because we get one gro_list per peer, which means packets can be combined nicely even if we have a large number of peers. This is also done by gro_cells_init() in net/core/gro_cells.c . Signed-off-by: Thomas Gschwantner <tharre3@gmail.com> Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2018-07-08receive: use NAPI on the receive pathJonathan Neuschäfer
Suggested-by: Jason A. Donenfeld <Jason@zx2c4.com> [Jason: fixed up the flushing of the rx_queue in peer_remove] Signed-off-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net> Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2018-06-24compat: more robust ktime backportJason A. Donenfeld
This is needed for frankenkernels, like android-common. Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2018-06-23global: use fast boottime instead of normal boottimeJason A. Donenfeld
Generally if we're inaccurate by a few nanoseconds, it doesn't matter. Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2018-06-23global: use ktime boottime instead of jiffiesJason A. Donenfeld
Since this is a network protocol, expirations need to be accounted for, even across system suspend. On real systems, this isn't a problem, since we're clearing all keys before suspend. But on Android, where we don't do that, this is something of a problem. So, we switch to using boottime instead of jiffies. Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2018-06-22global: fix a few typosJonathan Neuschäfer
Signed-off-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net> Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2018-06-19compat: use stabler lkml linksJason A. Donenfeld
This will redirect to whichever archive kernel.org thinks is best. Suggested-by: Konstantin Ryabitsev <konstantin@linuxfoundation.org> Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2018-06-19receive: drop handshake packets if rng is not initializedJason A. Donenfeld
Otherwise it's too easy to trigger cookie reply messages. Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2018-05-24compat: don't clash with get_random_u32 backportsJason A. Donenfeld
Our previous heuristic wasn't good enough, since CopperheadOS backported CANARY_MASK without backporting get_random_u32, as Qualcomm did, so now we just entirely rename all invocations of the function. Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2018-05-22compat: work around qcom 4.9 backportsJason A. Donenfeld
Qualcomm backported the get_random_u32 patch, even though kernel.org didn't, which is a problem. They also backported another patch in the same place which defines a new macro variable, so use this as a differentiator. Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2018-05-14compat: backport for OpenSUSE 15Jason A. Donenfeld
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2018-05-13compat: don't clear header bits on RHELJason A. Donenfeld
The 3.10 kernel from Red Hat puts head_frag in between headers_start and headers_end. This is triggered on the latest i40e driver. This results in the packet being freed incorrectly, crashing the system. So, this patch just ensures we don't zero any of the header bits. The whole issue of zeroing header bits probably should be revisited sometime somewhat soon. Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2018-05-13compat: handle RHEL 7.5's recent backportsJason A. Donenfeld
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2018-05-13socket: use skb_put_dataJason A. Donenfeld
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
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