diff options
| author |   Jason A. Donenfeld <Jason@zx2c4.com> | 2020-06-29 19:06:20 -0600 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2020-06-30 12:29:39 -0700 |
| commit | 01a4967c71c004f8ecad4ab57021348636502fa9 (patch) | |
| tree | 03fe34fb130f509213d970ddc1efc32e7000707e /net/xfrm/xfrm_interface.c | |
| parent | net: ipip: implement header_ops->parse_protocol for AF_PACKET (diff) | |
| download | wireguard-linux-01a4967c71c004f8ecad4ab57021348636502fa9.tar.xz wireguard-linux-01a4967c71c004f8ecad4ab57021348636502fa9.zip | |
wireguard: 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.
Reported-by: Hans Wippel <ndev@hwipl.net>
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/xfrm/xfrm_interface.c')
0 files changed, 0 insertions, 0 deletions