Commit ae148b08 authored Oct 26, 2016 by Eli Cooper Committed by David S. Miller Oct 29, 2016

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: b8921ca8 ("ip4ip6: Support for GSO/GRO")
Signed-off-by: Eli Cooper <elicooper@gmx.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

parent 96a8eb1e

net/ipv6/ip6_tunnel.c

+1 −0

Original line number	Diff line number	Diff line
		@@ -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);

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