| Age | Commit message (Collapse) | Author |
|---|
|
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
|
|
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
|
|
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
|
|
When building in an environment with a different modules install path
we need to be able to also override the depmod basedir flag.
Signed-off-by: Ricardo Mendoza <ricmm@pantacor.com>
[zx2c4: changed name of env var and added quotes to argument]
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
|
|
Reported-by: Vladimir Benes <vbenes@redhat.com>
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
|
|
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
|
|
These are required for moving wg_examine_packet_protocol out of
wireguard and into upstream.
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
|
|
Now that wg_examine_packet_protocol has been added for general
consumption as ip_tunnel_parse_protocol, it's possible to remove
wg_examine_packet_protocol and simply use the new
ip_tunnel_parse_protocol function directly.
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
|
|
WireGuard uses skb->protocol to determine packet type, and bails out if
it's not set or set to something it's not expecting. For AF_PACKET
injection, we need to support its call chain of:
packet_sendmsg -> packet_snd -> packet_parse_headers ->
dev_parse_header_protocol -> parse_protocol
Without a valid parse_protocol, this returns zero, and wireguard then
rejects the skb. So, this wires up the ip_tunnel handler for layer 3
packets for that case.
Reported-by: Hans Wippel <ndev@hwipl.net>
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
|
|
>=15.2 is in SUSE's kernel now.
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
|
|
Reported-by: Vladimir Benes <vbenes@redhat.com>
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
|
|
The napi_gro_receive function no longer returns GRO_DROP ever, making
handling GRO_DROP dead code. This commit removes that dead code.
Further, it's not even clear that device drivers have any business in
taking action after passing off received packets; that's arguably out of
their hands.
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
|
|
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
|
|
ca7a03c4175 was backported to 5.2 to fix 7d9e5f422150, but 7d9e5f422150
wasn't added until 5.3, so this fix for a reference underflow in 5.3
becomes a memory leak in 5.2.
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
|
|
Before, we took a reference to the creating netns if the new netns was
different. This caused issues with circular references, with two
wireguard interfaces swapping namespaces. The solution is to rather not
take any extra references at all, but instead simply invalidate the
creating netns pointer when that netns is deleted.
In order to prevent this from happening again, this commit improves the
rough object leak tracking by allowing it to account for created and
destroyed interfaces, aside from just peers and keys. That then makes it
possible to check for the object leak when having two interfaces take a
reference to each others' namespaces.
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
|
|
Fixes an error condition reported by checkpatch.pl which caused by
assigning a variable in an if condition in wg_noise_handshake_consume_
initiation().
Signed-off-by: Frank Werner-Krippendorf <mail@hb9fxq.ch>
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
|
|
This was originally done in 2015 as a means of decreasing module size,
but it has the effect of creating JUMP11 relocations on ARM when
compiled in THUMB2 mode without CONFIG_THUMB2_AVOID_R_ARM_THM_JUMP11=y,
which results in `B ...` instructions being generated with jumps that
are too far, rather than `B.W ...` instructions, which can handle the
larger sized jump.
Get rid of the old hack, which had minimum utility anyway.
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
|
|
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
|
|
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
|
|
The 42.x series is no longer supported, and the 15.2 kernel is getting
a proper backport, so at the moment, we only care about supporting 15.1.
Eventually we'll drop that too.
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
|
|
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
|
|
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
|
|
RHEL needs to apply https://lore.kernel.org/patchwork/patch/974664/
before we can revert this monstrosity.
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
|
|
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
|
|
This kind of thing really makes me queezy and upset, but there's little
that can be done about such situations when dealing with Canonical's
kernel.
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
|
|
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
|
|
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
|
|
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
|
|
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
|
|
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
|
|
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
|
|
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
|
|
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
|
|
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
|
|
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
|
|
Kernels without 9feeb638cde0 ("tools build: fix # escaping in .cmd
files for future Make") face problems when building with more recent
make, so patch these to avoid issues.
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
|
|
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
|
|
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
|
|
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
|
|
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
|
|
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
|
|
Also remove the confusing 119/118 distinction from the Debian clause,
which is no longer as important.
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
|
|
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
|
|
In "queueing: preserve flow hash across packet scrubbing", we were
required to slightly increase the size of the receive replay counter to
something still fairly small, but an increase nonetheless. It turns out
that we can recoup some of the additional memory overhead by splitting
up the prior union type into two distinct types. Before, we used the
same "noise_counter" union for both sending and receiving, with sending
just using a simple atomic64_t, while receiving used the full replay
counter checker. This meant that most of the memory being allocated for
the sending counter was being wasted. Since the old "noise_counter" type
increased in size in the prior commit, now is a good time to split up
that union type into a distinct "noise_replay_ counter" for receiving
and a boring atomic64_t for sending, each using neither more nor less
memory than required.
Also, since sometimes the replay counter is accessed without
necessitating additional accesses to the bitmap, we can reduce cache
misses by hoisting the always-necessary lock above the bitmap in the
struct layout. We also change a "noise_replay_counter" stack allocation
to kmalloc in a -DDEBUG selftest so that KASAN doesn't trigger a stack
frame warning.
All and all, removing a bit of abstraction in this commit makes the code
simpler and smaller, in addition to the motivating memory usage
recuperation. For example, passing around raw "noise_symmetric_key"
structs is something that really only makes sense within noise.c, in the
one place where the sending and receiving keys can safely be thought of
as the same type of object; subsequent to that, it's important that we
uniformly access these through keypair->{sending,receiving}, where their
distinct roles are always made explicit. So this patch allows us to draw
that distinction clearly as well.
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
|
|
It's important that we clear most header fields during encapsulation and
decapsulation, because the packet is substantially changed, and we don't
want any info leak or logic bug due to an accidental correlation. But,
for encapsulation, it's wrong to clear skb->hash, since it's used by
fq_codel and flow dissection in general. Without it, classification does
not proceed as usual. This change might make it easier to estimate the
number of innerflows by examining clustering of out of order packets,
but this shouldn't open up anything that can't already be inferred
otherwise (e.g. syn packet size inference), and fq_codel can be disabled
anyway.
Furthermore, it might be the case that the hash isn't used or queried at
all until after wireguard transmits the encrypted UDP packet, which
means skb->hash might still be zero at this point, and thus no hash
taken over the inner packet data. In order to address this situation, we
force a calculation of skb->hash before encrypting packet data.
Of course this means that fq_codel might transmit packets slightly more
out of order than usual. Toke did some testing on beefy machines with
high quantities of parallel flows and found that increasing the
reply-attack counter to 8192 takes care of the most pathological cases
pretty well.
Reported-by: Dave Taht <dave.taht@gmail.com>
Reviewed-and-tested-by: Toke Høiland-Jørgensen <toke@toke.dk>
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
|
|
Prior we read the preshared key after dropping the handshake lock, which
isn't an actual crypto issue if it races, but it's still not quite
correct. So copy that part of the state into a temporary like we do with
the rest of the handshake state variables. Then we can release the lock,
operate on the temporary, and zero it out at the end of the function. In
performance tests, the impact of this was entirely unnoticable, probably
because those bytes are coming from the same cacheline as other things
that are being copied out in the same manner.
Reported-by: Matt Dunwoodie <ncon@noconroy.net>
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
|
|
This should help with 8.3 beta rolls being recognized as 8.1 instead of
8.2 quirks.
Reported-by: Vladimir Benes <vbenes@redhat.com>
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
|
|
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
|
|
gcc-10 switched to defaulting to -fno-common, which broke iproute2-5.4.
This was fixed in iproute-5.6, so switch to that. Because we're after a
stable testing surface, we generally don't like to bump these
unnecessarily, but in this case, being able to actually build is a basic
necessity.
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
|
|
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
|
