lwt: Add support to redirect dst.input
This patch adds the capability to redirect dst input in the same way
that dst output is redirected by LWT.
Also, save the original dst.input and and dst.out when setting up
lwtunnel redirection. These can be called by the client as a pass-
through.
Signed-off-by: Tom Herbert <tom@herbertland.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/ipv6/route.c b/net/ipv6/route.c
index 1c0217e..c373304 100644
--- a/net/ipv6/route.c
+++ b/net/ipv6/route.c
@@ -1785,8 +1785,14 @@
if (err)
goto out;
rt->rt6i_lwtstate = lwtstate_get(lwtstate);
- if (lwtunnel_output_redirect(rt->rt6i_lwtstate))
+ if (lwtunnel_output_redirect(rt->rt6i_lwtstate)) {
+ rt->rt6i_lwtstate->orig_output = rt->dst.output;
rt->dst.output = lwtunnel_output6;
+ }
+ if (lwtunnel_input_redirect(rt->rt6i_lwtstate)) {
+ rt->rt6i_lwtstate->orig_input = rt->dst.input;
+ rt->dst.input = lwtunnel_input6;
+ }
}
ipv6_addr_prefix(&rt->rt6i_dst.addr, &cfg->fc_dst, cfg->fc_dst_len);