esp: choose the correct inner protocol for GSO on inter address family tunnels

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Commit 23c7f8d798 ("net: Fix esp GSO on inter address family
tunnels.") is incomplete. It passes to skb_eth_gso_segment the
protocol for the outer IP version, instead of the inner IP version, so
we end up calling inet_gso_segment on an inner IPv6 packet and
ipv6_gso_segment on an inner IPv4 packet and the packets are dropped.

This patch completes the fix by selecting the correct protocol based
on the inner mode's family.

Fixes: c35fe4106b ("xfrm: Add mode handlers for IPsec on layer 2")
Signed-off-by: Sabrina Dubroca <sd@queasysnail.net>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>

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Sabrina Dubroca 2022-08-25 17:16:51 +02:00 • committed by Steffen Klassert

parent ebe5555c2f

commit 26dbd66eab

2 changed files with 8 additions and 2 deletions

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5

net/ipv4/esp4_offload.c

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5

net/ipv6/esp6_offload.c

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