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ipv4: apply lwtunnel encap for locally-generated packets 

lwtunnel encap is applied for forwarded packets, but not for
locally-generated packets. This is because the output function is not
overridden in __mkroute_output, unlike it is in __mkroute_input.

The lwtunnel state is correctly set on the rth through the call to
rt_set_nexthop, so all that needs to be done is to override the dst
output function to be lwtunnel_output if there is lwtunnel state
present and it requires output redirection.

Signed-off-by: Robert Shearman <rshearma@brocade.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Robert Shearman 2015-08-03 17:39:21 +01:00 committed by David S. Miller
parent abf7c1c540
commit 0335f5b500
1 changed files with 2 additions and 0 deletions
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2
net/ipv4/route.c
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@ -2022,6 +2022,8 @@ add:
}
rt_set_nexthop(rth, fl4->daddr, res, fnhe, fi, type, 0);
if (lwtunnel_output_redirect(rth->rt_lwtstate))
rth->dst.output = lwtunnel_output;
return rth;
}