feat: boostrap hicn 22.02

The current patch provides several new features, improvements,
bug fixes and also complete rewrite of entire components.

- lib
The hicn packet parser has been improved with a new packet
format fully based on UDP. The TCP header is still temporarily
supported but the UDP header will replace completely the new hicn
packet format. Improvements have been made to make sure every
packet parsing operation is made via this library. The current
new header can be used as header between the payload and the
UDP header or as trailer in the UDP surplus area to be tested
when UDP options will start to be used.

- hicn-light
The portable packet forwarder has been completely rewritten from
scratch with the twofold objective to improve performance and
code size but  also to drop dependencies such as libparc which is
now removed by the current implementation.

- hicn control
the control library is the agent that is used to program the
packet forwarders via their binary API. This component has
benefited from significant improvements in terms of interaction
model which is now event driven and more robust to failures.

- VPP plugin has been updated to support VPP 22.02

- transport
Major improvement have been made to the RTC protocol, to the
support of IO modules and to the security sub system. Signed
manifests are the default data authenticity and integrity framework.
Confidentiality can be enabled by sharing the encryption key to the
prod/cons layer. The library has been tested with group key based
applications such as broadcast/multicast and real-time on-line
meetings with trusted server keys or MLS.

- testing
Unit testing has been introduced using GoogleTest. One third of
the code base is covered by unit testing with priority on
critical features. Functional testing has also been introduce
using Docker, linux bridging and Robot Framework to define
test with Less Code techniques to facilitate the extension
of the coverage.

Co-authored-by: Mauro Sardara <msardara@cisco.com>
Co-authored-by: Jordan Augé <jordan.auge+fdio@cisco.com>
Co-authored-by: Michele Papalini <micpapal@cisco.com>
Co-authored-by: Angelo Mantellini <manangel@cisco.com>
Co-authored-by: Jacques Samain <jsamain@cisco.com>
Co-authored-by: Olivier Roques <oroques+fdio@cisco.com>
Co-authored-by: Enrico Loparco <eloparco@cisco.com>
Co-authored-by: Giulio Grassi <gigrassi@cisco.com>

Change-Id: I75d0ef70f86d921e3ef503c99271216ff583c215
Signed-off-by: Luca Muscariello <muscariello@ieee.org>
Signed-off-by: Mauro Sardara <msardara@cisco.com>

1 files changed, 4 insertions, 94 deletions

diff --git a/hicn-plugin/src/faces/face.c b/hicn-plugin/src/faces/face.c
index d62054365..854fd81d3 100644
--- a/hicn-plugin/src/faces/face.c
+++ b/hicn-plugin/src/faces/face.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2017-2021 Cisco and/or its affiliates.
+ * Copyright (c) 2021 Cisco and/or its affiliates.
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at:
@@ -57,11 +57,8 @@ face_show (u8 *s, int face_id, u32 indent)
   return (s);
 }
 
-mhash_t hicn_face_vec_hashtb;
 mhash_t hicn_face_hashtb;
 
-hicn_face_vec_t *hicn_vec_pool;
-
 const static char *const hicn_face6_nodes[] = {
   "hicn6-face-output",	// this is the name you give your node in
 			// VLIB_REGISTER_NODE
@@ -163,14 +160,9 @@ hicn_face_module_init (vlib_main_t *vm)
   counters = vec_new (vlib_combined_counter_main_t,
 		      HICN_PARAM_FACES_MAX * HICN_N_COUNTER);
 
-  mhash_init (&hicn_face_vec_hashtb,
-	      sizeof (hicn_face_input_faces_t) /* value */,
-	      sizeof (hicn_face_key_t) /* key */);
   mhash_init (&hicn_face_hashtb, sizeof (hicn_face_id_t) /* value */,
 	      sizeof (hicn_face_key_t) /* key */);
 
-  pool_alloc (hicn_vec_pool, 100);
-
   /*
    * How much useful is the following registration?
    * So far it seems that we need it only for setting the dpo_type.
@@ -182,7 +174,7 @@ hicn_face_module_init (vlib_main_t *vm)
    * corresponding to a face is updated
    */
   hicn_face_fib_node_type =
-    fib_node_register_new_type (&hicn_face_fib_node_vft);
+    fib_node_register_new_type ("hicn_face_fib_node", &hicn_face_fib_node_vft);
 }
 
 u8 *
@@ -256,46 +248,11 @@ format_hicn_face_all (u8 *s, int n, ...)
 int
 hicn_face_del (hicn_face_id_t face_id)
 {
-  hicn_face_t *face = hicn_dpoi_get_from_idx (face_id);
-  hicn_face_key_t key;
-  hicn_face_key_t old_key;
-  hicn_face_key_t old_key2;
-
-  hicn_face_get_key (&(face->nat_addr), face->sw_if, &(face->dpo), &key);
-  hicn_face_input_faces_t *in_faces_vec =
-    hicn_face_get_vec (&(face->nat_addr), &hicn_face_vec_hashtb);
-  if (in_faces_vec != NULL)
-    {
-      hicn_face_vec_t *vec =
-	pool_elt_at_index (hicn_vec_pool, in_faces_vec->vec_id);
-      u32 index_face = vec_search (*vec, face_id);
-      vec_del1 (*vec, index_face);
-
-      if (vec_len (*vec) == 0)
-	{
-	  pool_put_index (hicn_vec_pool, in_faces_vec->vec_id);
-	  mhash_unset (&hicn_face_vec_hashtb, &key, (uword *) &old_key);
-	  vec_free (*vec);
-	}
-      else
-	{
-	  /* Check if the face we are deleting is the preferred one. */
-	  /* If so, repleace with another. */
-	  if (in_faces_vec->face_id == face_id)
-	    {
-	      in_faces_vec->face_id = (*vec)[0];
-	    }
-	}
-
-      mhash_unset (&hicn_face_hashtb, &key, (uword *) &old_key2);
-    }
-
   int ret = HICN_ERROR_NONE;
 
   if (hicn_dpoi_idx_is_valid (face_id))
     {
       hicn_face_t *face = hicn_dpoi_get_from_idx (face_id);
-      face->locks--;
       if (face->locks == 0)
 	pool_put_index (hicn_dpoi_face_pool, face_id);
       else
@@ -320,7 +277,7 @@ hicn_iface_to_face (hicn_face_t *face, const dpo_id_t *dpo)
       fib_node_init (&face->fib_node, hicn_face_fib_node_type);
       fib_node_lock (&face->fib_node);
 
-      if (dpo->dpoi_type != DPO_ADJACENCY_MIDCHAIN ||
+      if (dpo->dpoi_type != DPO_ADJACENCY_MIDCHAIN &&
 	  dpo->dpoi_type != DPO_ADJACENCY_MCAST_MIDCHAIN)
 	{
 	  ip_adjacency_t *adj = adj_get (dpo->dpoi_index);
@@ -375,8 +332,7 @@ hicn_face_add (const dpo_id_t *dpo_nh, ip46_address_t *nat_address, int sw_if,
   if (face == NULL)
     {
 
-      hicn_iface_add (nat_address, sw_if, pfaceid, dpo_nh->dpoi_proto,
-		      dpo_nh->dpoi_index);
+      hicn_iface_add (nat_address, sw_if, pfaceid, dpo_nh->dpoi_index, 0);
       face = hicn_dpoi_get_from_idx (*pfaceid);
 
       mhash_set_mem (&hicn_face_hashtb, &key, (uword *) pfaceid, 0);
@@ -395,52 +351,6 @@ hicn_face_add (const dpo_id_t *dpo_nh, ip46_address_t *nat_address, int sw_if,
 
   temp_dpo.dpoi_index = ~0;
 
-  hicn_face_input_faces_t *in_faces =
-    hicn_face_get_vec (nat_address, &hicn_face_vec_hashtb);
-
-  if (in_faces == NULL)
-    {
-      hicn_face_input_faces_t in_faces_temp;
-      hicn_face_vec_t *vec;
-      pool_get (hicn_vec_pool, vec);
-      *vec = vec_new (hicn_face_id_t, 0);
-      u32 index = vec - hicn_vec_pool;
-      in_faces_temp.vec_id = index;
-      vec_add1 (*vec, *pfaceid);
-
-      in_faces_temp.face_id = *pfaceid;
-
-      hicn_face_get_key (nat_address, 0, &temp_dpo, &key);
-
-      mhash_set_mem (&hicn_face_vec_hashtb, &key, (uword *) &in_faces_temp, 0);
-    }
-  else
-    {
-      hicn_face_vec_t *vec =
-	pool_elt_at_index (hicn_vec_pool, in_faces->vec_id);
-
-      /* */
-      if (vec_search (*vec, *pfaceid) != ~0)
-	return HICN_ERROR_FACE_ALREADY_CREATED;
-
-      vec_add1 (*vec, *pfaceid);
-
-      hicn_iface_to_face (face, dpo_nh);
-
-      hicn_face_get_key (nat_address, 0, &temp_dpo, &key);
-
-      mhash_set_mem (&hicn_face_vec_hashtb, &key, (uword *) in_faces, 0);
-
-      /* If the face is an application producer face, we set it as the
-       * preferred incoming face. */
-      /* This is required to handle the CS separation, and the push api in a
-       * lightway */
-      if (is_app_prod)
-	{
-	  in_faces->face_id = *pfaceid;
-	}
-    }
-
   retx_t *retx = vlib_process_signal_event_data (
     vlib_get_main (), hicn_mapme_eventmgr_process_node.index,
     HICN_MAPME_EVENT_FACE_ADD, 1, sizeof (retx_t));