ipv6: update skb->csum when CE mark is propagated

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When a tunnel decapsulates the outer header, it has to comply
with RFC 6080 and eventually propagate CE mark into inner header.

It turns out IP6_ECN_set_ce() does not correctly update skb->csum
for CHECKSUM_COMPLETE packets, triggering infamous "hw csum failure"
messages and stack traces.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Acked-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>

...

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Eric Dumazet 2016-01-15 04:56:56 -08:00 • committed by David S. Miller

parent 113c74d83e

commit 34ae6a1aa0

2 changed files with 17 additions and 4 deletions

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19

include/net/inet_ecn.h

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2

net/ipv6/xfrm6_mode_tunnel.c

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