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ip_tunnel: push generic protocol handling to ip_tunnel module.

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Process skb tunnel header before sending packet to protocol handler.
this allows code sharing between gre and ovs gre modules.

Signed-off-by: Pravin B Shelar <pshelar@nicira.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Pravin B Shelar 2013-06-17 17:50:02 -07:00 • committed by David S. Miller
parent 0e6fbc5b6c
commit 3d7b46cd20
6 changed files with 54 additions and 27 deletions
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6
net/ipv4/ipip.c
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@ -188,8 +188,12 @@ static int ipip_rcv(struct sk_buff *skb)
struct net *net = dev_net(skb->dev);
struct ip_tunnel_net *itn = net_generic(net, ipip_net_id);
struct ip_tunnel *tunnel;
const struct iphdr *iph = ip_hdr(skb);
const struct iphdr *iph;
if (iptunnel_pull_header(skb, 0, tpi.proto))
goto drop;
iph = ip_hdr(skb);
tunnel = ip_tunnel_lookup(itn, skb->dev->ifindex, TUNNEL_NO_KEY,
iph->saddr, iph->daddr, 0);
if (tunnel) {