[HICN-602] Added bidirectional udp tunnels

- Implemented a udp decapsulation node
- Added a hash table to identify the incoming udp tunnel when
  an interest or data packets are received
- Added udp punting through udp_register_dst_port

Signed-off-by: Alberto Compagno <acompagn+fdio@cisco.com>
Change-Id: Iffea4d81c5ea8ce8ccbbfd749113f06a698a2afe

1 files changed, 36 insertions, 1 deletions

diff --git a/hicn-plugin/src/hicn.api b/hicn-plugin/src/hicn.api
index 0f7231327..753491c5f 100644
--- a/hicn-plugin/src/hicn.api
+++ b/hicn-plugin/src/hicn.api
@@ -22,7 +22,6 @@ enum hicn_action_type
    HICN_ENABLE,
 };
 
-
 typedef hicn_face
 {
   /* IP local address */
@@ -607,6 +606,42 @@ autoreply define hicn_api_face_cons_del
   u32 faceid;
 };
 
+define hicn_api_udp_tunnel_add_del
+{
+  /* Client identifier, set from api_main.my_client_index */
+  u32 client_index;
+
+  /* Arbitrary context, so client can match reply to request */
+  u32 context;
+
+  /* Source address */
+  vl_api_address_t src_addr;
+
+  /* Destination address */
+  vl_api_address_t dst_addr;
+
+  /* Source port */
+  u16 src_port;
+
+  /* Destination port */
+  u16 dst_port;
+
+  /* Add or remove the tunnel*/
+  u8 is_add;
+};
+
+define hicn_api_udp_tunnel_add_del_reply
+{
+  /* From the request */
+  u32 context;
+
+  /* Return value, zero means all OK */
+  i32 retval;
+
+  /* Udp encap index */
+  u32 uei;
+};
+
 /*
  * fd.io coding-style-patch-verification: ON
  *