diff options
| author | Timo Teräs <timo.teras@iki.fi> | 2013-12-16 11:02:09 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-01-15 15:28:48 -0800 |
| commit | 85e963b89ad0727eca17bf0ac65a1cbf110b1bb6 (patch) | |
| tree | ab6954624a8027abe7709c8b10a2cbf69d5e49d0 | |
| parent | 57bc52eb25cff3ddd096598bf40e9be7673eb83a (diff) | |
ip_gre: fix msg_name parsing for recvfrom/recvmsg
[ Upstream commit 0e3da5bb8da45890b1dc413404e0f978ab71173e ]
ipgre_header_parse() needs to parse the tunnel's ip header and it
uses mac_header to locate the iphdr. This got broken when gre tunneling
was refactored as mac_header is no longer updated to point to iphdr.
Introduce skb_pop_mac_header() helper to do the mac_header assignment
and use it in ipgre_rcv() to fix msg_name parsing.
Bug introduced in commit c54419321455 (GRE: Refactor GRE tunneling code.)
Cc: Pravin B Shelar <pshelar@nicira.com>
Signed-off-by: Timo Teräs <timo.teras@iki.fi>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | net/ipv4/ip_gre.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/net/ipv4/ip_gre.c b/net/ipv4/ip_gre.c index 64e4e98c878..828b2e8631e 100644 --- a/net/ipv4/ip_gre.c +++ b/net/ipv4/ip_gre.c @@ -335,6 +335,7 @@ static int ipgre_rcv(struct sk_buff *skb) iph->saddr, iph->daddr, tpi.key); if (tunnel) { + skb_pop_mac_header(skb); ip_tunnel_rcv(tunnel, skb, &tpi, hdr_len, log_ecn_error); return 0; } |