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ipv6: Partial checksum only UDP packets

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ip6_append_data is used by other protocols and some of them can't
be partially checksummed.  Only partially checksum UDP protocol.

Fixes: 32dce968dd (ipv6: Allow for partial checksums on non-ufo packets)
Reported-by: Sabrina Dubroca <sd@queasysnail.net>
Tested-by: Sabrina Dubroca <sd@queasysnail.net>
Signed-off-by: Vladislav Yasevich <vyasevic@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Vlad Yasevich 2015-02-10 11:37:29 -05:00 committed by David S. Miller
parent 4a3046d68a
commit bf250a1fa7
1 changed files with 1 additions and 1 deletions
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2
net/ipv6/ip6_output.c
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@ -1273,7 +1273,7 @@ emsgsize:
/* If this is the first and only packet and device
* supports checksum offloading, let's use it.
*/
if (!skb &&
if (!skb && sk->sk_protocol == IPPROTO_UDP &&
length + fragheaderlen < mtu &&
rt->dst.dev->features & NETIF_F_V6_CSUM &&
!exthdrlen)