Commit bf250a1f authored Feb 10, 2015 by Vlad Yasevich Committed by David S. Miller Feb 11, 2015

ipv6: Partial checksum only UDP packets



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

Fixes: 32dce968 (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>

parent 4a3046d6

net/ipv6/ip6_output.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -1273,7 +1273,7 @@ static int __ip6_append_data(struct sock *sk,
		/* 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)