route: Per route IP tunnel metadata via lightweight tunnel

This introduces a new IP tunnel lightweight tunnel type which allows
to specify IP tunnel instructions per route. Only IPv4 is supported
at this point.

Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Thomas Graf
2015-07-21 10:44:00 +02:00
committed by David S. Miller
parent 1b7179d3ad
commit 3093fbe7ff
8 changed files with 157 additions and 5 deletions

View File

@@ -23,13 +23,23 @@ static inline struct metadata_dst *skb_metadata_dst(struct sk_buff *skb)
return NULL;
}
static inline struct ip_tunnel_info *skb_tunnel_info(struct sk_buff *skb)
static inline struct ip_tunnel_info *skb_tunnel_info(struct sk_buff *skb,
int family)
{
struct metadata_dst *md_dst = skb_metadata_dst(skb);
struct rtable *rt;
if (md_dst)
return &md_dst->u.tun_info;
switch (family) {
case AF_INET:
rt = (struct rtable *)skb_dst(skb);
if (rt && rt->rt_lwtstate)
return lwt_tun_info(rt->rt_lwtstate);
break;
}
return NULL;
}