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(parent: 2904207) | patch
ip_gre: make ipgre_tunnel_xmit() not parse network header as IP unconditionally
authorIsaku Yamahata <yamahata@valinux.co.jp>
Thu, 20 Dec 2012 15:12:52 +0000 (15:12 +0000)
committerDavid S. Miller <davem@davemloft.net>
Fri, 21 Dec 2012 21:14:00 +0000 (13:14 -0800)
commit412ed94744d16806fbec3bd250fd94e71cde5a1f
tree092eb88bc8d798797354bdaa8db95c26faa35f6btree | snapshot (tar.gz zip)
parent29042073e7af55334ac3c4f2a8340263200c5749commit | diff
ip_gre: make ipgre_tunnel_xmit() not parse network header as IP unconditionally

ipgre_tunnel_xmit() parses network header as IP unconditionally.
But transmitting packets are not always IP packet. For example such packet
can be sent by packet socket with sockaddr_ll.sll_protocol set.
So make the function check if skb->protocol is IP.

Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
net/ipv4/ip_gre.c diff | blob | blame | history