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openvswitch: more accurate checksumming in queue_userspace_packet() 

if skb carries an SCTP packet and ip_summed is CHECKSUM_PARTIAL, it needs
CRC32c in place of Internet Checksum: use skb_csum_hwoffload_help to avoid
corrupting such packets while queueing them towards userspace.

Signed-off-by: Davide Caratti <dcaratti@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
zero-colors
Davide Caratti 2017-05-18 15:44:42 +02:00 committed by David S. Miller
parent 43c26a1a45
commit 7529390d08
1 changed files with 1 additions and 1 deletions
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2
net/openvswitch/datapath.c
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@ -453,7 +453,7 @@ static int queue_userspace_packet(struct datapath *dp, struct sk_buff *skb,
/* Complete checksum if needed */
if (skb->ip_summed == CHECKSUM_PARTIAL &&
(err = skb_checksum_help(skb)))
(err = skb_csum_hwoffload_help(skb, 0)))
goto out;
/* Older versions of OVS user space enforce alignment of the last