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ip6_tunnel: Update skb->protocol to ETH_P_IPV6 in ip6_tnl_xmit() 

This patch updates skb->protocol to ETH_P_IPV6 in ip6_tnl_xmit() when an
IPv6 header is installed to a socket buffer.

This is not a cosmetic change.  Without updating this value, GSO packets
transmitted through an ipip6 tunnel have the protocol of ETH_P_IP and
skb_mac_gso_segment() will attempt to call gso_segment() for IPv4,
which results in the packets being dropped.

Fixes: b8921ca83e ("ip4ip6: Support for GSO/GRO")
Signed-off-by: Eli Cooper <elicooper@gmx.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Eli Cooper 2016-10-26 10:11:09 +08:00 committed by David S. Miller
parent 96a8eb1eee
commit ae148b0858
1 changed files with 1 additions and 0 deletions
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net/ipv6/ip6_tunnel.c
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@ -1172,6 +1172,7 @@ route_lookup:
if (err)
return err;
skb->protocol = htons(ETH_P_IPV6);
skb_push(skb, sizeof(struct ipv6hdr));
skb_reset_network_header(skb);
ipv6h = ipv6_hdr(skb);