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Commit 8f9a1fa4 authored by Jason A. Donenfeld's avatar Jason A. Donenfeld Committed by David S. Miller
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net: xfrmi: implement header_ops->parse_protocol for AF_PACKET



The xfrm interface uses skb->protocol to determine packet type, and
bails out if it's not set. 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 xfrmi rejects the
skb. So, this wires up the ip_tunnel handler for layer 3 packets for
that case.

Reported-by: default avatarWillem de Bruijn <willemdebruijn.kernel@gmail.com>
Signed-off-by: default avatarJason A. Donenfeld <Jason@zx2c4.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 75ea1f47
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