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ipv4: redirect dst output to lwtunnel output

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For input routes with tunnel encap state this patch redirects
dst output functions to lwtunnel_output which later resolves to
the corresponding lwtunnel output function.

This has been tested to work with mpls ip tunnels.

Signed-off-by: Roopa Prabhu <roopa@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Roopa Prabhu 2015-07-21 10:43:50 +02:00 committed by David S. Miller
parent ffce41962e
commit 8602a62502
1 changed files with 2 additions and 0 deletions
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2
net/ipv4/route.c
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@ -1633,6 +1633,8 @@ static int __mkroute_input(struct sk_buff *skb,
rth->dst.output = ip_output;
rt_set_nexthop(rth, daddr, res, fnhe, res->fi, res->type, itag);
if (lwtunnel_output_redirect(rth->rt_lwtstate))
rth->dst.output = lwtunnel_output;
skb_dst_set(skb, &rth->dst);
out:
err = 0;