This skips 0.0.20190531
Changelog for 0.0.20190601
== Changes ==
* compat: don't call xgetbv on cpus with no XSAVE
There was an issue with the backport compat layer in yesterday's snapshot,
causing issues on certain (mostly Atom) Intel chips on kernels older than
4.2, due to the use of xgetbv without checking cpu flags for xsave support.
This manifested itself simply at module load time. Indeed it's somewhat tricky
to support 33 different kernel versions (3.10+), plus weird distro
frankenkernels.
Changelog for 0.0.20190531
== Changes ==
* tools: add wincompat layer to wg(8)
Consistent with a lot of the Windows work we've been doing this last cycle,
wg(8) now supports the WireGuard for Windows app by talking through a named
pipe. You can compile this as `PLATFORM=windows make -C src/tools` with mingw.
Because programming things for Windows is pretty ugly, we've done this via a
separate standalone wincompat layer, so that we don't pollute our pretty *nix
utility.
* compat: udp_tunnel: force cast sk_data_ready
This is a hack to work around broken Android kernel wrapper scripts.
* wg-quick: freebsd: workaround SIOCGIFSTATUS race in FreeBSD kernel
FreeBSD had a number of kernel race conditions, some of which we can vaguely
work around. These are in the process of being fixed upstream, but probably
people won't update for a while.
* wg-quick: make darwin and freebsd path search strict like linux
Correctness.
* socket: set ignore_df=1 on xmit
This was intended from early on but didn't work on IPv6 without the ignore_df
flag. It allows sending fragments over IPv6.
* qemu: use newer iproute2 and kernel
* qemu: build iproute2 with libmnl support
* qemu: do not check for alignment with ubsan
The QEMU build system has been improved to compile newer versions. Linking
against libmnl gives us better error messages. As well, enabling the alignment
check on x86 UBSAN isn't realistic.
* wg-quick: look up existing routes properly
* wg-quick: specify protocol to ip(8), because of inconsistencies
The route inclusion check was wrong prior, and Linux 5.1 made it break
entirely. This makes a better invocation of `ip route show match`.
* netlink: use new strict length types in policy for 5.2
* kbuild: account for recent upstream changes
* zinc: arm64: use cpu_get_elf_hwcap accessor for 5.2
The usual churn of changes required for the upcoming 5.2.
* timers: add jitter on ack failure reinitiation
Correctness tweak in the timer system.
* blake2s,chacha: latency tweak
* blake2s: shorten ssse3 loop
In every odd-numbered round, instead of operating over the state
x00 x01 x02 x03
x05 x06 x07 x04
x10 x11 x08 x09
x15 x12 x13 x14
we operate over the rotated state
x03 x00 x01 x02
x04 x05 x06 x07
x09 x10 x11 x08
x14 x15 x12 x13
The advantage here is that this requires no changes to the 'x04 x05 x06 x07'
row, which is in the critical path. This results in a noticeable latency
improvement of roughly R cycles, for R diagonal rounds in the primitive. As
well, the blake2s AVX implementation is now SSSE3 and considerably shorter.
* tools: allow setting WG_ENDPOINT_RESOLUTION_RETRIES
System integrators can now specify things like
WG_ENDPOINT_RESOLUTION_RETRIES=infinity when building wg(8)-based init
scripts and services, or 0, or any other integer.
Signed-off-by: Rolf Neugebauer <rn@rneugeba.io>
Intel seem to have switched to hosting the microcode on GitHub.
Use this source and update to the 20190514 version.
Signed-off-by: Rolf Neugebauer <rn@rneugeba.io>
== Changes ==
* allowedips: initialize list head when removing intermediate nodes
Fix for an important regression in removing allowed IPs from the last
snapshot. We have new test cases to catch these in the future as well.
* wg-quick: freebsd: rebreak interface loopback, while fixing localhost
* wg-quick: freebsd: export TMPDIR when restoring and don't make empty
Two fixes for FreeBSD which have already been backported into ports.
* tools: genkey: account for short reads of /dev/urandom
* tools: add support for Haiku
The tools now support Haiku! Maybe somebody is working on a WireGuard
implementation for it?
* tools: warn if an AllowedIP has a nonzero host part
If you try to run `wg set wg0 peer ... allowed-ips 192.168.1.82/24`, wg(8)
will now print a warning. Even though we mask this automatically down to
192.168.1.0/24, usually when people specify it like this, it's a mistake.
* wg-quick: add 'strip' subcommand
The new strip subcommand prints the config file to stdout after stripping
it of all wg-quick-specific options. This enables tricks such as:
`wg addconf $DEV <(wg-quick strip $DEV)`.
* tools: avoid unneccessary next_peer assignments in sort_peers()
Small C optimization the compiler was probably already doing.
* peerlookup: rename from hashtables
* allowedips: do not use __always_inline
* device: use skb accessor functions where possible
Suggested tweaks from Dave Miller.
* qemu: set framewarn 1280 for 64bit and 1024 for 32bit
These should indicate to us more clearly when we cross the most strict stack
thresholds expected when using recent compilers with the kernel.
* blake2s: simplify
* blake2s: remove outlen parameter from final
The blake2s implementation has been simplified, since we don't use any of the
fancy tree hashing parameters or the like. We also no longer separate the
output length at initialization time from the output length at finalization
time.
* global: the _bh variety of rcu helpers have been unified
* compat: nf_nat_core.h was removed upstream
* compat: backport skb_mark_not_on_list
The usual assortment of compat fixes for Linux 5.1.
Signed-off-by: Rolf Neugebauer <rn@rneugeba.io>
Getting compile errors:
AS [M] /wireguard/crypto/zinc/chacha20/chacha20-x86_64.o
In file included from <command-line>:
/wireguard/compat/compat.h:795:10: fatal error: net/netfilter/nf_nat_core.h: No such file or directory
#include <net/netfilter/nf_nat_core.h>
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Signed-off-by: Rolf Neugebauer <rn@rneugeba.io>
