From c1b56d5861829a23289f42cecd716e681b520cf0 Mon Sep 17 00:00:00 2001
From: Alberto Compagno <acompagn+fdio@cisco.com>
Date: Wed, 22 Apr 2020 18:29:52 +0200
Subject: [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
---
 hicn-plugin/src/hicn_api.c | 55 +++++++++++++++++++++++++++++++++++++++++++++-
 1 file changed, 54 insertions(+), 1 deletion(-)

(limited to 'hicn-plugin/src/hicn_api.c')

diff --git a/hicn-plugin/src/hicn_api.c b/hicn-plugin/src/hicn_api.c
index 841f0b604..1aa6178a7 100644
--- a/hicn-plugin/src/hicn_api.c
+++ b/hicn-plugin/src/hicn_api.c
@@ -26,7 +26,7 @@
 #include <vnet/ip/ip_format_fns.h>
 
 #include "faces/face.h"
-//#include "faces/udp/face_udp.h"
+#include "udp_tunnels/udp_tunnel.h"
 #include "infra.h"
 #include "parser.h"
 #include "mgmt.h"
@@ -684,6 +684,59 @@ static void vl_api_hicn_api_enable_disable_t_handler
   REPLY_MACRO (VL_API_HICN_API_ENABLE_DISABLE_REPLY/* , rmp, mp, rv */ );
 }
 
+/*********************************** UDP TUNNELS ************************************/
+
+static void vl_api_hicn_api_udp_tunnel_add_del_t_handler
+(vl_api_hicn_api_udp_tunnel_add_del_t * mp)
+{
+  vl_api_hicn_api_udp_tunnel_add_del_reply_t *rmp;
+  int rv = HICN_ERROR_NONE;
+
+  hicn_main_t *sm = &hicn_main;
+
+  ip46_address_t src_addr;
+  ip46_address_t dst_addr;
+  u16 src_port;
+  u16 dst_port;
+  index_t uei = ~0;
+
+  ip46_type_t type = ip_address_decode (&mp->src_addr, &src_addr);
+  if (type != ip_address_decode (&mp->dst_addr, &dst_addr))
+    {
+      rv = HICN_ERROR_UDP_TUNNEL_SRC_DST_TYPE;
+      goto done;
+    }
+
+  src_port = clib_net_to_host_u16(mp->src_port);
+  dst_port = clib_net_to_host_u16(mp->dst_port);
+
+  fib_protocol_t proto = ip46_address_is_ip4(&src_addr) ? FIB_PROTOCOL_IP4 : FIB_PROTOCOL_IP6;
+
+  index_t fib_index = fib_table_find (proto, HICN_FIB_TABLE);
+
+  if (mp->is_add)
+    {
+      uei = udp_tunnel_add(proto,
+                           fib_index, &src_addr, &dst_addr, src_port, dst_port,
+                           UDP_ENCAP_FIXUP_NONE);
+    }
+  else
+    {
+      udp_tunnel_del(proto,
+                     fib_index, &src_addr, &dst_addr, src_port, dst_port,
+                     UDP_ENCAP_FIXUP_NONE);
+    }
+
+
+ done:
+
+  /* *INDENT-OFF* */
+  REPLY_MACRO2 (VL_API_HICN_API_UDP_TUNNEL_ADD_DEL_REPLY, (
+    {
+      rmp->uei = clib_host_to_net_u32(uei);
+    }));
+  /* *INDENT-ON* */
+}
 
 /************************************************************************************/
 
-- 
cgit 1.2.3-korg