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ipv6: gre: fix wrong skb->protocol in WCCP

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[ Upstream commit be6572fdb1 ]

When using GRE redirection in WCCP, it sets the wrong skb->protocol,
that is, ETH_P_IP instead of ETH_P_IPV6 for the encapuslated traffic.

Fixes: c12b395a46 ("gre: Support GRE over IPv6")
Cc: Dmitry Kozlov <xeb@mail.ru>
Signed-off-by: Yuri Chislov <yuri.chislov@gmail.com>
Tested-by: Yuri Chislov <yuri.chislov@gmail.com>
Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Yuri Chislov
2014-11-24 11:25:15 +01:00
committed by Greg Kroah-Hartman
parent 69052167b4
commit c556ebe8c8
1 changed files with 2 additions and 2 deletions
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4
net/ipv6/ip6_gre.c
View File

@@ -512,11 +512,11 @@ static int ip6gre_rcv(struct sk_buff *skb)
skb->protocol = gre_proto;
/* WCCP version 1 and 2 protocol decoding.
* - Change protocol to IP
* - Change protocol to IPv6
* - When dealing with WCCPv2, Skip extra 4 bytes in GRE header
*/
if (flags == 0 && gre_proto == htons(ETH_P_WCCP)) {
skb->protocol = htons(ETH_P_IP);
skb->protocol = htons(ETH_P_IPV6);
if ((*(h + offset) & 0xF0) != 0x40)
offset += 4;
}