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ipv4: add a sock pointer to dst->output() path.

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In the dst->output() path for ipv4, the code assumes the skb it has to
transmit is attached to an inet socket, specifically via
ip_mc_output() : The sk_mc_loop() test triggers a WARN_ON() when the
provider of the packet is an AF_PACKET socket.

The dst->output() method gets an additional 'struct sock *sk'
parameter. This needs a cascade of changes so that this parameter can
be propagated from vxlan to final consumer.

Fixes: 8f646c922d ("vxlan: keep original skb ownership")
Reported-by: lucien xin <lucien.xin@gmail.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Eric Dumazet
2014-04-15 13:47:15 -04:00
committed by David S. Miller
parent b0270e9101
commit aad88724c9
19 changed files with 74 additions and 46 deletions
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2
net/ipv4/xfrm4_output.c
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@@ -86,7 +86,7 @@ int xfrm4_output_finish(struct sk_buff *skb)
return xfrm_output(skb);
}
int xfrm4_output(struct sk_buff *skb)
int xfrm4_output(struct sock *sk, struct sk_buff *skb)
{
struct dst_entry *dst = skb_dst(skb);
struct xfrm_state *x = dst->xfrm;