[PATCH net-next v4 1/4] route: Set orig_output when redirecting to lwt on locally generated traffic

[Thomas Graf]

orig_output for IPv4 was only set for dsts which hit an input route.
Set it consistently for locally generated traffic as well to allow
lwt to continue the dst_output() path as configured by the nexthop.

Fixes: 2536862311d ("lwt: Add support to redirect dst.input")
Signed-off-by: Thomas Graf <tg...@suug.ch>
---
 net/ipv4/route.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/net/ipv4/route.c b/net/ipv4/route.c
index d37fc6f..0c39b62 100644
--- a/net/ipv4/route.c
+++ b/net/ipv4/route.c
@@ -2154,8 +2154,10 @@ static struct rtable *__mkroute_output(const struct 
fib_result *res,
        }
 
        rt_set_nexthop(rth, fl4->daddr, res, fnhe, fi, type, 0);
-       if (lwtunnel_output_redirect(rth->dst.lwtstate))
+       if (lwtunnel_output_redirect(rth->dst.lwtstate)) {
+               rth->dst.lwtstate->orig_output = rth->dst.output;
                rth->dst.output = lwtunnel_output;
+       }
 
        return rth;
 }
-- 
2.7.4