UDP Encapsulation.

A UDP-encap object that particiapates in the FIB graph and contributes
DPO to teh output chain. It thereofre resembles a tunnel but without the
interface. FIB paths (and henace routes) can then be created to egress
through the UDP-encap. Said routes can have MPLS labels, hence this also
allows MPLSoUPD.
Encap is uni-directional. For decap, one still registers with the UDP port
dispatcher.

Change-Id: I23bd345523b20789a1de1b02022ea1148ca50797
Signed-off-by: Neale Ranns <nranns@cisco.com>

1 files changed, 10 insertions, 2 deletions

diff --git a/src/vnet/ip/ip.api b/src/vnet/ip/ip.api
index df3ae9646c4..85e4b8e04c3 100644
--- a/src/vnet/ip/ip.api
+++ b/src/vnet/ip/ip.api
@@ -368,13 +368,18 @@ autoreply define sw_interface_ip6_set_link_local_address
     @param is_unreach - Drop the packet and rate limit send ICMP unreachable
     @param is_prohibit - Drop the packet and rate limit send ICMP prohibited
     @param is_ipv6 - 0 if an ip4 route, else ip6
-    @param is_local - 
+    @param is_local - The route will result in packets sent to VPP IP stack
+    @param is_udp_encap - The path describes a UDP-o-IP encapsulation.
     @param is_classify - 
     @param is_multipath - Set to 1 if this is a multipath route, else 0
     @param is_source_lookup - The the path is a deaggregate path (i.e. a lookup
     	   		      in another table) is the lookup on the packet's
 			      source address or destination.
-    @param next_hop_weight - 
+    @param next_hop_weight - Weight for Unequal cost multi-path
+    @param next_hop_preference - Path that are up that have the best preference are
+                                 are used for forwarding. lower value is better.
+    @param next_hop_id - Used when the path resolves via an object that has a unique
+                         identifier.
     @param dst_address_length - 
     @param dst_address[16] - 
     @param next_hop_address[16] - 
@@ -390,6 +395,7 @@ autoreply define ip_add_del_route
   u32 table_id;
   u32 classify_table_index;
   u32 next_hop_table_id;
+  u32 next_hop_id;
   u8 create_vrf_if_needed;
   u8 is_add;
   u8 is_drop;
@@ -403,8 +409,10 @@ autoreply define ip_add_del_route
   u8 is_resolve_attached;
   u8 is_l2_bridged;
   u8 is_source_lookup;
+  u8 is_udp_encap;
   u8 next_hop_weight;
   u8 next_hop_preference;
+  u8 next_hop_proto;
   u8 dst_address_length;
   u8 dst_address[16];
   u8 next_hop_address[16];