tunnel: add vxlan support

This patch extends the tunnel metadata object to define vxlan tunnel
specific configurations:

table netdev x {
	tunnel y {
		id 10
		ip saddr 192.168.2.10
		ip daddr 192.168.2.11
		sport 10
		dport 20
		ttl 10
		vxlan {
			gbp 200
		}
	}
}

Signed-off-by: Fernando Fernandez Mancera <fmancera@suse.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>

1 files changed, 4 insertions, 0 deletions

diff --git a/include/rule.h b/include/rule.h
index 71e9a07e..c52af2c4 100644
--- a/include/rule.h
+++ b/include/rule.h
@@ -495,6 +495,7 @@ struct secmark {
 enum tunnel_type {
 	TUNNEL_UNSPEC = 0,
 	TUNNEL_ERSPAN,
+	TUNNEL_VXLAN,
 };
 
 struct tunnel {
@@ -517,6 +518,9 @@ struct tunnel {
 				uint8_t		hwid;
 			} v2;
 		} erspan;
+		struct {
+			uint32_t	gbp;
+		} vxlan;
 	};
 };