diff options
| author | Thomas Graf <tgraf@suug.ch> | 2015-07-21 10:43:59 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2015-07-21 10:39:06 -0700 |
| commit | 1b7179d3adff0ab71f85ee24d7de28ccb7734b89 (patch) | |
| tree | ead538e72fa7d897db7d756f6fbe042286ed49e5 /net/ipv4/route.c | |
| parent | ee122c79d4227f6ec642157834b6a90fcffa4382 (diff) | |
| download | lwn-1b7179d3adff0ab71f85ee24d7de28ccb7734b89.tar.gz lwn-1b7179d3adff0ab71f85ee24d7de28ccb7734b89.zip | |
route: Extend flow representation with tunnel key
Add a new flowi_tunnel structure which is a subset of ip_tunnel_key to
allow routes to match on tunnel metadata. For now, the tunnel id is
added to flowi_tunnel which allows for routes to be bound to specific
virtual tunnels.
Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4/route.c')
| -rw-r--r-- | net/ipv4/route.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/net/ipv4/route.c b/net/ipv4/route.c index 4c8e84e75871..91da18be0a71 100644 --- a/net/ipv4/route.c +++ b/net/ipv4/route.c @@ -91,6 +91,7 @@ #include <linux/slab.h> #include <linux/jhash.h> #include <net/dst.h> +#include <net/dst_metadata.h> #include <net/net_namespace.h> #include <net/protocol.h> #include <net/ip.h> @@ -110,6 +111,7 @@ #include <linux/kmemleak.h> #endif #include <net/secure_seq.h> +#include <net/ip_tunnels.h> #define RT_FL_TOS(oldflp4) \ ((oldflp4)->flowi4_tos & (IPTOS_RT_MASK | RTO_ONLINK)) @@ -1673,6 +1675,7 @@ static int ip_route_input_slow(struct sk_buff *skb, __be32 daddr, __be32 saddr, { struct fib_result res; struct in_device *in_dev = __in_dev_get_rcu(dev); + struct ip_tunnel_info *tun_info; struct flowi4 fl4; unsigned int flags = 0; u32 itag = 0; @@ -1690,6 +1693,11 @@ static int ip_route_input_slow(struct sk_buff *skb, __be32 daddr, __be32 saddr, by fib_lookup. */ + tun_info = skb_tunnel_info(skb); + if (tun_info && tun_info->mode == IP_TUNNEL_INFO_RX) + fl4.flowi4_tun_key.tun_id = tun_info->key.tun_id; + else + fl4.flowi4_tun_key.tun_id = 0; skb_dst_drop(skb); if (ipv4_is_multicast(saddr) || ipv4_is_lbcast(saddr)) |