* noise: take lock when removing handshake entry from table
This is a defense in depth patch backported from upstream to account for any
future issues with list node lifecycles.
* netns: check that route_me_harder packets use the right sk
A test for an issue that goes back to before Linux's git history began. I've
fixed this upstream, but it doesn't look possible to put it into the compat
layer, as it's a core networking problem. But we still test for it in the
netns test and warn on broken kernels.
* qemu: drop build support for rhel 8.2
We now test 8.3+.
* compat: SYM_FUNC_{START,END} were backported to 5.4
* qemu: bump default testing version
The real motivation for this version bump: 5.4.76 made a change that broke our
compat layer.
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
* compat: backport kfree_sensitive and switch to it
* netlink: consistently use NLA_POLICY_EXACT_LEN()
* netlink: consistently use NLA_POLICY_MIN_LEN()
* compat: backport NLA policy macros
Backports from upstream changes.
* peerlookup: take lock before checking hash in replace operation
A fix for a race condition caught by syzkaller.
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
This release brings parity with the commits Linus released a few hours
ago into 5.8-rc5.
* receive: account for napi_gro_receive never returning GRO_DROP
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.
* device: implement header_ops->parse_protocol for AF_PACKET
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.
* queueing: make use of ip_tunnel_parse_protocol
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.
* compat: backport ip_tunnel_parse_protocol and ip_tunnel_header_ops
These are required for moving wg_examine_packet_protocol out of
wireguard and into upstream.
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
