While we can re-create the kernel source code we don't have it
handily available in one place. This commit stashes the kernel
and the WireGuard source as /src/linux.tar.xz and
/src/wireguard.tar.xz in the kernel package.
This increases the size of the hub image by around 100MB.
Signed-off-by: Rolf Neugebauer <rolf.neugebauer@docker.com>
This microcode bundle comes with a file called "list"
which seems to confuse the 'iucode_tool', so we just
remove it.
Signed-off-by: Rolf Neugebauer <rolf.neugebauer@docker.com>
For example kernel module signatures if you do not provide a key. So add
to the dependencies for kernel builds.
Signed-off-by: Justin Cormack <justin.cormack@docker.com>
Update building process to add s390 support.
The patch serial-forbid-8250-on-s390.patch has been added to disable
8250 serial for s390.
The patch is available upstream https://patchwork.kernel.org/patch/10106437/
but it is not backported.
Signed-off-by: Alice Frosi <alice@linux.vnet.ibm.com>
* receive: treat packet checking as irrelevant for timers
Small simplification to the state machine, as discussed with Mathias
Hall-Andersen.
* socket: check for null socket before fishing out sport
* wg-quick: ifnames have max len of 15
* tools: plug memleak in config error path
Important bug fixes.
* external-tests: add python implementation
Piotr Lizonczyk has contributed a test vector written in Python.
* poly1305: remove indirect calls
From Samuel Neves, we now are in a better position to mitigate speculative
execution attacks.
* curve25519: modularize implementation
* curve25519: import 32-bit fiat-crypto implementation
* curve25519: import 64-bit hacl-star implementation
* curve25519: resolve symbol clash between fe types
* curve25519: wire up new impls and remove donna
* tools: import new curve25519 implementations
* contrib: keygen-html: update curve25519 implementation
Two of our Curve25519 implementations now use formally verified C. Read this
mailing list post for more information:
https://lists.zx2c4.com/pipermail/wireguard/2018-January/002304.html
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
DOwnload and verify the Intel microcode package and convert it
to a cpio archive which can be prepended to the initrd.
It also adds the license file to the kernel package.
Signed-off-by: Rolf Neugebauer <rolf.neugebauer@docker.com>
* curve25519: explictly depend on AS_AVX
* curve25519: modularize dispatch
It's now much cleaner to see which implementation we're calling, and it will
be simpler to add more implementations in the future.
* compat: support RAP in assembly
This should fix PaX/Grsecurity support.
* device: do not clear keys during sleep on Android
While we want to clear keys when going to sleep on ordinary Linux, this
doesn't make sense in the Android world, where phones often sleep but are
woken up every few milliseconds by the radios to process packets.
* compat: fix 3.10 backport
Important compat fixes for non-x86.
* device: clear last handshake timer on ifdown
When bringing up an interface, we don't want the rate limiting to handshakes
to apply.
* netlink: rename symbol to avoid clashes
Allows coexistance with horrible Android drivers.
* kernel-tree: jury rig is the more common spelling
* tools: no need to put this on the stack
* blake2s-x86_64: fix spacing
Small fixes.
* contrib: keygen-html for generating keys in the browser
This was covered here:
https://lists.zx2c4.com/pipermail/wireguard/2017-December/002127.html
* tools: remove undocumented unused syntax
Not only did nobody know about this or use it, but the implementation actually
exposed compiler bugs in Qualcomm's "Snapdragon Clang".
* poly1305: update x86-64 kernel to AVX512F only
From Samuel Neves, this pulls in Andy Polyakov's changes to only require F and
not VL for the Poly implementation.
* chacha20-arm: fix with clang -fno-integrated-as.
This pulls in David Benjamin's clang fix.
* global: add SPDX tags to all files
From Greg KH, we now have SPDX annotations on all files, matching upstream
kernel's new approach to file licenses.
* chacha20poly1305: cleaner generic code
This entirely removes the last remains of Martin Willi's ChaCha
implementation, and now the generic C implementation is extremely small and
clearly written, while delivering a small performance boost too.
* poly1305: fix avx512f alignment bug
Unlucky people may have had their linkers misalign a constant. This fixes that
potential.
* chacha20: avx512vl implementation
From Samuel Neves, this imports Andy Polyakov's AVX512VL implementation of
ChaCha which should have a ~50% performance improvement over AVX2, though it
is still much slower than our AVX512F implementation.
* chacha20poly1305: wire up avx512vl for skylake-x
Some Skylake machines do not have two FMA units (though others do), so we
prefer the AVX512VL implementation over the should-be-faster AVX512F
implementation on those machines. What's needed now is to read the PIROM in
order to determine at runtime whether the particular Skylake-X machine
actually has the second FMA unit or not, but until that happens, we just fall
back to the VL implementation for all Skylake-X.
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
This is a double bump.
Changes 0.0.20171122:
* chacha20poly1305: fast primitives from Andy Polyakov
Samuel Neves and I have spent considerable time and headaches porting,
reworking, and partially rewriting Andy's optimized implementations of
ChaCha20 and Poly1305. We now support the following:
On x86_64:
- Poly1305: integer unit
- ChaCha20: SSSE3
- HChaCha20: SSSE3
- Poly1305: AVX
- ChaCha20: AVX2
- Poly1305: AVX2
- ChaCha20: AVX512
- Poly1305: AVX512
On ARM:
- Poly1305: integer unit
- ChaCha20: NEON
- Poly1305: NEON
On ARM64:
- Poly1305: integer unit
- ChaCha20: NEON
- Poly1305: NEON
On MIPS64:
- Poly1305: integer unit
All others:
- ChaCha20: generic C
- Poly1305: generic C
This is a pretty substantial amount of new handrolled assembly. It will
perhaps MURDER KITTENS, so please tread lightly with this snapshot and adjust
expectations accordingly. I'm looking forward to quickly fixing any issues
folks find while testing.
Performance-wise, this should see increases all around. The biggest speedups
will be on ARM and ARM64, but x86_64 and MIPS64 should also see modest speed
improvements too, especially on Skylake systems supporting AVX512.
* chacha20poly1305: add more test vectors, some of which are weird
Test vectors are pretty important, so we added more to catch odd edge cases
using the following butcher's code:
from cryptography.hazmat.primitives.ciphers.aead import ChaCha20Poly1305
import os
def encode_blob(blob):
a = ""
for i in blob:
a += "\\x" + hex(i)[2:]
return a
enc = [ ]
dec = [ ]
def make_vector(plen, adlen):
key = os.urandom(32)
nonce = os.urandom(8)
p = os.urandom(plen)
ad = os.urandom(adlen)
c = ChaCha20Poly1305(key).encrypt(nonce=bytes(4) + nonce, data=p, associated_data=ad)
out = "{\n"
out += "\t.key\t= \"" + encode_blob(key) + "\",\n"
out += "\t.nonce\t= \"" + encode_blob(nonce) + "\",\n"
out += "\t.assoc\t= \"" + encode_blob(ad) + "\",\n"
out += "\t.alen\t= " + str(len(ad)) + ",\n"
out += "\t.input\t= \"" + encode_blob(p) + "\",\n"
out += "\t.ilen\t= " + str(len(p)) + ",\n"
out += "\t.result\t= \"" + encode_blob(c) + "\"\n"
out += "}"
enc.append(out)
out = "{\n"
out += "\t.key\t= \"" + encode_blob(key) + "\",\n"
out += "\t.nonce\t= \"" + encode_blob(nonce) + "\",\n"
out += "\t.assoc\t= \"" + encode_blob(ad) + "\",\n"
out += "\t.alen\t= " + str(len(ad)) + ",\n"
out += "\t.input\t= \"" + encode_blob(c) + "\",\n"
out += "\t.ilen\t= " + str(len(c)) + ",\n"
out += "\t.result\t= \"" + encode_blob(p) + "\"\n"
out += "}"
dec.append(out)
make_vector(0, 0)
make_vector(0, 8)
make_vector(1, 8)
make_vector(1, 0)
make_vector(129, 7)
make_vector(256, 0)
make_vector(512, 0)
make_vector(513, 9)
make_vector(1024, 16)
make_vector(1933, 7)
make_vector(2011, 63)
print("======== encryption vectors ========")
print(", ".join(enc))
print("\n\n\n======== decryption vectors ========")
print(", ".join(dec))
* wg-quick: document localhost exception and v6 rule
Probably a "kill switch" wants this too:
-m addrtype ! --dst-type LOCAL
so that basic local services can continue to work.
* selftest: allowedips: randomized test mutex update
* allowedips: do not write out of bounds
* device: uninitialize socket first in destruction
* tools: tighten up strtoul parsing
Small fixups.
* qemu: update kernel
* qemu: use unprefixed strip when not cross-compiling
Fedora/Redhat doesn't ship with a prefixed strip, and we don't need
to use it anyway when we're not cross compiling, so don't.
* compat: 3.16.50 got proper rt6_get_cookie
* compat: stable finally backported fix
* compat: new kernels have netlink fixes
* compat: fix compilation with PaX
Usual set of compatibility updates.
* curve25519-neon: compile in thumb mode
In thumb mode, it's not possible to use sp as an operand of and, so
we have to muck around with r3 as a scratch register.
* socket: only free socket after successful creation of new
When an interface is down, the socket port can change freely. A socket
will be allocated when the interface comes up, and if a socket can't be
allocated, the interface doesn't come up.
However, a socket port can change while the interface is up. In this
case, if a new socket with a new port cannot be allocated, it's
important to keep the interface in a consistent state. The choices are
either to bring down the interface or to preserve the old socket. This
patch implements the latter.
* global: switch from timeval to timespec
This gets us nanoseconds instead of microseconds, which is better, and
we can do this pretty much without freaking out existing userspace,
which doesn't actually make use of the nano/microseconds field. The below
test program shows that this won't break existing sizes:
zx2c4@thinkpad ~ $ cat a.c
void main()
{
puts(sizeof(struct timeval) == sizeof(struct timespec) ?
"success" : "failure");
}
zx2c4@thinkpad ~ $ gcc a.c -m64 && ./a.out
success
zx2c4@thinkpad ~ $ gcc a.c -m32 && ./a.out
success
Changes 0.0.20171127:
* compat: support timespec64 on old kernels
* compat: support AVX512BW+VL by lying
* compat: fix typo and ranges
* compat: support 4.15's netlink and barrier changes
* poly1305-avx512: requires AVX512F+VL+BW
Numerous compat fixes which should keep us supporting 3.10-4.15-rc1.
* blake2s: AVX512F+VL implementation
* blake2s: tweak avx512 code
* blake2s: hmac space optimization
Another terrific submission from Samuel Neves: we now have an implementation
of Blake2s using AVX512, which is extremely fast.
* allowedips: optimize
* allowedips: simplify
* chacha20: directly assign constant and initial state
Small performance tweaks.
* tools: fix removing preshared keys
* qemu: use netfilter.org https site
* qemu: take shared lock for untarring
Small bug fixes.
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Routine version bump that also removes the necessity of carrying that
extra patch. Changes:
* Kconfig: remove trailing whitespace
* allowedips: rename from routingtable
* tools: remove ioctl cruft
* global: revert checkpatch.pl changes
Cleanliness.
* device: please lockdep
* device: wait for all peers to be freed before destroying
These make the various checkers happy.
* netlink: plug memory leak
* qemu: check for memory leaks
There was a small memory leak on the netlink configuration layer that's now
been fixed.
* receive: hoist fpu outside of receive loop
Should be a small speedup on x86_64.
* qemu: more debugging
* qemu: bump kernel version
Significantly more debugging checkers have been turned on.
* wg-quick: stat the correct enclosing folder of config file
* wg-quick: allow for tabs in keys
Minor fixups for wg-quick(8).
* compat: 4.4.0 has strange ECN function
Nobody actually runs base 4.4.0, but this is more correct anyway.
* netlink: make sure we reserve space for NLMSG_DONE
A rather important change - due to an upstream kernel bug, that's existed
since the advent of netlink itself, sometimes wg(8) failed to receive valid
data back from kernelspace, resulting in "ENOBUFS" when trying to dump all
peers. This patch works around it while we wait for upstream to commit the
fix.
* curve25519: reject deriving from NULL private keys
* tools: allow for NULL keys everywhere
A null 25519 private point isn't a valid point (prior to normalization), which
is why we use it as the "unsetting" value. Conversely, however, except for
psk, we should be using the existence of it in the netlink message being an
indication of whether or not it's set, for the tools.
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Version 0.0.20171101 errors out when compiled for
debug kernels. This will be fixed in the next release.
In the meantime pull in the patch which fixes the
compile error.
Signed-off-by: Rolf Neugebauer <rolf.neugebauer@docker.com>
20171031, the Halloween edition, had a show stopper bug, which was
neither security related, nor did it affect LinuxKit kernels, but
was important enough for me to bump the snapshot. This is the
corresponding LinuxKit bump. Changes:
* wg-quick: save all hooks on save
Tiny bug fix for 'wg-quick save'.
* timers: switch to kees' new timer_list functions
Shiny new things for Linux 4.14.
* compat: unbreak unloading on kernels 4.6 through 4.9
The real motivation for this extra snapshot bump. Before we would run into
some issues when unloading the module, which was not good.
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Simple version bump. Changes:
* netns: use read built-in instead of ncat hack for dmesg
* netns: use time-based test instead of quantity-based
* qemu: allow for cross compilation
* qemu: work around ccache bugs
* qemu: test using four cores
* selftest: initialize mutex in routingtable selftest
We now cross compile and run in QEMU for x86_64, i686,
ARMv7, Aarch64, and MIPS. You can see the current build
status on: https://www.wireguard.com/build-status/
* stats: more robust accounting
* compat: fix up stat calculation for udp tunnel
The statistics from `ip link -stats` or from `wg show` are
now much more accurate.
* global: accept decent check_patch.pl suggestions
* global: infuriating kernel iterator style
* global: style nits
* global: use fewer BUG_ONs
* global: get rid of useless forward declarations
* blake2: include headers for macros
* tools: correct type for CTRL_ATTR_FAMILY_ID
Lots of style cleanups.
* crypto/avx: make sure we can actually use ymm registers
This fixes an issue on some Xen platforms that expose
conflicting CPU features.
* peer: get rid of peer_for_each magic
* peer: store total number of peers instead of iterating
A major cleanup of our peer iteration logic, getting rid
of a big ugly macro and clarifying our locking semantics.
* compat: be sure to include header before testing
* wg-quick: allow specifiying multiple hooks
You can now specify {Post,Pre}{Down,Up} multiple times, and
the commands will then run in succession.
* wg-quick: remember to rewind DNS settings on failure
Small consistency fix.
* wg-quick: allow for saving existing interface
There is now a 'save' option for saving an existing
configuration without having to bring down the device.
* wg-quick: fsync the temporary file before renaming
In case the system looses power, you are now left with
either the old file or the new file but not an empty file.
* wg-quick: allow for the hatchet, but not by default
In order to account for distributions that do not have an
implementation of resolvconf(8), the contrib directory ships
with an alternative implementation that may be patched in.
This was extensively discussed and debated on the mailing
list.
* device: only take reference if netns is different
Solves an important memory leak when tearing down network
namespaces that haven't moved the wireguard device.
* device: expand scope of destruct lock
* timers: guard entire setting in block
Just to be certain.
* curve25519: only enable int128 if compiler support is sound
Allows building for Aarch64 with old gcc (such as that used
by Android) where we don't want to branch to a __multi3.
* contrib: add reresolve-dns
A small script that's been passed around for a while now for
reresolving DNS entries from a cronjob.
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
It's kinda obvious that these are kernel configuration files
and, looking at various other distros it seems more common
to call the files 'config-<foo>'.
Signed-off-by: Rolf Neugebauer <rolf.neugebauer@docker.com>
