[HICN-574] Host stack plugin for VPP.

Signed-off-by: Mauro Sardara <msardara@cisco.com>
Change-Id: I8d8fdffef31a7013265d6529c5f52f3d5ec70d18
Signed-off-by: Mauro Sardara <msardara@cisco.com>
Signed-off-by: Mauro <you@example.com>
Signed-off-by: Mauro Sardara <msardara@cisco.com>

1 files changed, 0 insertions, 766 deletions

diff --git a/hicn-plugin/src/route.c b/hicn-plugin/src/route.c
deleted file mode 100644
index 3b774cd82..000000000
--- a/hicn-plugin/src/route.c
+++ /dev/null
@@ -1,766 +0,0 @@
-/*
- * Copyright (c) 2017-2020 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:
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include <vnet/fib/fib_entry.h>
-#include <vnet/fib/fib_table.h>
-#include <vnet/fib/fib_entry_track.h>
-#include <vnet/ip/ip6_packet.h>
-#include <vnet/ip/ip.h>
-#include <vnet/dpo/dpo.h>
-#include <vnet/dpo/drop_dpo.h>
-#include <vnet/dpo/load_balance.h>
-#include <vnet/udp/udp.h>
-#include <vnet/udp/udp_encap.h>
-#include <vlib/global_funcs.h>
-
-#include "strategy_dpo_ctx.h"
-#include "strategy_dpo_manager.h"
-#include "strategy.h"
-#include "faces/face.h"
-#include "error.h"
-#include "strategies/dpo_mw.h"
-#include "infra.h"
-#include "udp_tunnels/udp_tunnel.h"
-
-#define FIB_SOURCE_HICN 0x04	//Right after the FIB_SOURCE_INTERFACE priority
-
-fib_source_t hicn_fib_src;
-
-fib_node_type_t hicn_fib_node_type;
-
-ip4_address_t localhost4 = {0};
-ip6_address_t localhost6 = {0};
-
-int
-hicn_route_get_dpo (const fib_prefix_t * prefix,
-		    const dpo_id_t ** hicn_dpo, u32 * fib_index)
-{
-  //fib_prefix_t fib_pfx;
-  const dpo_id_t *load_balance_dpo_id;
-  const dpo_id_t *former_dpo_id;
-  int found = 0, ret = HICN_ERROR_ROUTE_NOT_FOUND;
-  fib_node_index_t fib_entry_index;
-
-  /* Check if the route already exist in the fib */
-  /*
-   * ASSUMPTION: we use table 0 which is the default table and it is
-   * already existing and locked
-   */
-  *fib_index = fib_table_find_or_create_and_lock (prefix->fp_proto,
-						  HICN_FIB_TABLE,
-						  hicn_fib_src);
-  fib_entry_index = fib_table_lookup_exact_match (*fib_index, prefix);
-
-  if (fib_entry_index != FIB_NODE_INDEX_INVALID)
-    {
-      /* Route already existing. We need to update the dpo. */
-      load_balance_dpo_id =
-	fib_entry_contribute_ip_forwarding (fib_entry_index);
-
-      /* The dpo is not a load balance dpo as expected */
-      if (load_balance_dpo_id->dpoi_type != DPO_LOAD_BALANCE)
-	ret = HICN_ERROR_ROUTE_NO_LD;
-      else
-	{
-	  /* former_dpo_id is a load_balance dpo */
-	  load_balance_t *lb =
-	    load_balance_get (load_balance_dpo_id->dpoi_index);
-
-	  /* FIB entry exists but there is no hicn dpo. */
-	  ret = HICN_ERROR_ROUTE_DPO_NO_HICN;
-	  for (int i = 0; i < lb->lb_n_buckets && !found; i++)
-	    {
-	      former_dpo_id = load_balance_get_bucket_i (lb, i);
-
-	      if (dpo_is_hicn (former_dpo_id))
-		{
-		  *hicn_dpo = former_dpo_id;
-		  ret = HICN_ERROR_NONE;
-		  found = 1;
-		}
-	    }
-	}
-    }
-  /*
-   * Remove the lock from the table. We keep one lock per route, not
-   * per dpo
-   */
-  fib_table_unlock (*fib_index, prefix->fp_proto, hicn_fib_src);
-
-  return ret;
-}
-
-int
-hicn_route_set_strategy (fib_prefix_t * prefix, u8 strategy_id)
-{
-  const dpo_id_t *hicn_dpo_id;
-  dpo_id_t new_dpo_id = DPO_INVALID;
-  int ret;
-  hicn_dpo_ctx_t *old_hicn_dpo_ctx;
-  const hicn_dpo_vft_t *new_dpo_vft;
-  index_t new_hicn_dpo_idx;
-  u32 fib_index;
-
-  ret = hicn_route_get_dpo (prefix, &hicn_dpo_id, &fib_index);
-
-  if (ret == HICN_ERROR_NONE)
-    {
-      old_hicn_dpo_ctx = hicn_strategy_dpo_ctx_get (hicn_dpo_id->dpoi_index);
-
-      new_dpo_vft = hicn_dpo_get_vft_from_id (strategy_id);
-
-      if (new_dpo_vft == NULL || old_hicn_dpo_ctx == NULL)
-	return HICN_ERROR_STRATEGY_NOT_FOUND;
-
-      /* Create a new dpo for the new strategy */
-      new_dpo_vft->hicn_dpo_create (hicn_dpo_id->dpoi_proto,
-				    old_hicn_dpo_ctx->next_hops,
-				    old_hicn_dpo_ctx->entry_count,
-				    &new_hicn_dpo_idx);
-
-      /* the value we got when we registered */
-      dpo_set (&new_dpo_id,
-	       new_dpo_vft->hicn_dpo_get_type (),
-	       (ip46_address_is_ip4 (&prefix->fp_addr) ? DPO_PROTO_IP4 :
-		DPO_PROTO_IP6), new_hicn_dpo_idx);
-
-      /* Here is where we create the "via" like route */
-      /*
-       * For the moment we use the global one the prefix you want
-       * to match Neale suggested -- FIB_SOURCE_HICN the client
-       * that is adding them -- no easy explanation at this time…
-       */
-      fib_node_index_t new_fib_node_index =
-	fib_table_entry_special_dpo_update (fib_index,
-					    prefix,
-					    hicn_fib_src,
-					    FIB_ENTRY_FLAG_EXCLUSIVE,
-					    &new_dpo_id);
-
-      dpo_unlock (&new_dpo_id);
-      ret =
-	(new_fib_node_index !=
-	 FIB_NODE_INDEX_INVALID) ? HICN_ERROR_NONE :
-	HICN_ERROR_ROUTE_NOT_UPDATED;
-    }
-  //Remember to remove the lock from the table when removing the entry
-  return ret;
-
-}
-
-int
-ip_nh_add_helper (fib_protocol_t fib_proto, const fib_prefix_t * rpfx, ip46_address_t * nh, u32 sw_if)
-{
-  fib_route_path_t *rpaths = NULL, rpath;
-
-  u32 fib_index = fib_table_find(fib_proto, 0);
-
-  clib_memset(&rpath, 0, sizeof(rpath));
-  rpath.frp_weight = 1;
-  rpath.frp_sw_if_index = sw_if;
-  rpath.frp_addr = *nh;
-  rpath.frp_proto = ip46_address_is_ip4(nh) ? DPO_PROTO_IP4 : DPO_PROTO_IP6;
-
-  vec_add1(rpaths, rpath);
-
-  fib_table_entry_path_add2 (fib_index,
-                             rpfx,
-                             FIB_SOURCE_CLI,
-                             FIB_ENTRY_FLAG_NONE, rpaths);
-  return 0;
-}
-
-int
-ip_nh_del_helper (fib_protocol_t fib_proto, const fib_prefix_t * rpfx, ip46_address_t * nh, u32 sw_if)
-{
-  fib_route_path_t *rpaths = NULL, rpath;
-
-  u32 fib_index = fib_table_find(fib_proto, 0);
-
-  clib_memset(&rpath, 0, sizeof(rpath));
-  rpath.frp_weight = 1;
-  rpath.frp_sw_if_index = sw_if;
-  rpath.frp_addr = *nh;
-  rpath.frp_proto = ip46_address_is_ip4(nh) ? DPO_PROTO_IP4 : DPO_PROTO_IP6;
-
-  vec_add1(rpaths, rpath);
-
-  fib_table_entry_path_remove2 (fib_index,
-                                rpfx,
-                                FIB_SOURCE_CLI,
-                                rpaths);
-  return 0;
-}
-
-
-static ip46_address_t * get_address(ip46_address_t * nh, u32 sw_if, fib_protocol_t proto)
-{
-  ip46_address_t * local_address = calloc(1, sizeof(ip46_address_t));
-
-  if (proto == FIB_PROTOCOL_IP4)
-    {
-      ip_interface_address_t *interface_address;
-      ip4_address_t *addr =
-        ip4_interface_address_matching_destination (&ip4_main,
-                                                    &nh->ip4,
-                                                    sw_if,
-                                                    &interface_address);
-
-      if (addr == NULL)
-        addr = ip4_interface_first_address (&ip4_main,
-                                            sw_if,
-                                            &interface_address);
-      if (addr != NULL)
-        ip46_address_set_ip4 (local_address, addr);
-    }
-  else if (proto == FIB_PROTOCOL_IP6)
-    {
-      ip_interface_address_t *interface_address;
-      ip6_interface_address_matching_destination (&ip6_main,
-                                                  &nh->ip6,
-                                                  sw_if,
-                                                  &interface_address);
-
-      ip6_address_t *addr = NULL;
-      if (interface_address != NULL)
-        addr =
-          (ip6_address_t *)
-          ip_interface_address_get_address (&ip6_main.lookup_main,
-                                            interface_address);
-
-      if (addr == NULL)
-        addr = ip6_interface_first_address (&ip6_main, sw_if);
-
-      if (addr != NULL)
-        ip46_address_set_ip6 (local_address, addr);
-    }
-
-  return local_address;
-}
-
-static void
-sync_hicn_fib_entry(hicn_dpo_ctx_t *fib_entry)
-{
-  const dpo_id_t * dpo_loadbalance = fib_entry_contribute_ip_forwarding (fib_entry->fib_entry_index);
-  const load_balance_t *lb0 = load_balance_get(dpo_loadbalance->dpoi_index);
-  index_t hicn_fib_entry_index = hicn_strategy_dpo_ctx_get_index(fib_entry);
-  hicn_face_id_t * vec_faces = 0;
-
-  dpo_id_t temp = DPO_INVALID;
-  const dpo_id_t *former_dpo = &temp;
-  int index = 0;
-  for (int j = 0; j < lb0->lb_n_buckets; j++) {
-    const dpo_id_t * dpo = load_balance_get_bucket_i(lb0,j);
-
-    int dpo_comparison = dpo_cmp(former_dpo, dpo);
-    former_dpo = dpo;
-    /*
-     * Loadbalancing in ip replicate the dpo in multiple buckets
-     * in order to honor the assigned weights.
-     */
-    if (dpo_comparison == 0)
-        continue;
-
-    u32 sw_if = ~0;
-    ip46_address_t * nh = NULL;
-    hicn_face_id_t face_id = HICN_FACE_NULL;
-
-    if (dpo_is_adj(dpo))
-      {
-        ip_adjacency_t * adj = adj_get (dpo->dpoi_index);
-        sw_if = adj->rewrite_header.sw_if_index;
-        nh = get_address (&(adj->sub_type.nbr.next_hop), sw_if, fib_entry->proto);
-      }
-    else if (dpo->dpoi_type == dpo_type_udp_ip4 || dpo->dpoi_type == dpo_type_udp_ip6)
-      {
-        u8 proto = dpo->dpoi_type == dpo_type_udp_ip4 ? FIB_PROTOCOL_IP4 : FIB_PROTOCOL_IP6;
-        nh = calloc (1, sizeof(ip46_address_t));
-        switch (dpo->dpoi_proto)
-          {
-          case FIB_PROTOCOL_IP6:
-            nh = calloc (1, sizeof(ip46_address_t));
-            ip46_address_set_ip6(nh, &localhost6);
-            break;
-          case FIB_PROTOCOL_IP4:
-            nh = calloc (1, sizeof(ip46_address_t));
-            ip46_address_set_ip4(nh, &localhost4);
-            break;
-          default:
-            nh = calloc (1, sizeof(ip46_address_t));
-          }
-        udp_tunnel_add_existing (dpo->dpoi_index, proto);
-      }
-    else //if (dpo_is_drop(dpo))
-      {
-        sw_if = dpo_get_urpf(dpo);
-        nh = calloc (1, sizeof(ip46_address_t));
-      }
-
-    /* Careful, this adds a lock on the face if it exists */
-    hicn_face_add(dpo, nh, sw_if, &face_id, 0);
-
-    vec_validate(vec_faces, index);
-    vec_faces[index] = face_id;
-    index++;
-
-    /* Face creation can realloc load_balance_t? Seem the fib_tracking does so. */
-    dpo_loadbalance = fib_entry_contribute_ip_forwarding (fib_entry->fib_entry_index);
-    lb0 = load_balance_get(dpo_loadbalance->dpoi_index);
-  }
-
-  const hicn_dpo_vft_t * strategy_vft = hicn_dpo_get_vft(fib_entry->dpo_type);
-  int i = 0;
-  while (i < fib_entry->entry_count)
-    {
-      u32 idx_nh = vec_search(vec_faces, fib_entry->next_hops[i]);
-      if (idx_nh == ~0)
-        {
-          strategy_vft->hicn_dpo_del_nh(fib_entry->next_hops[i], hicn_fib_entry_index);
-        }
-      else
-        {
-         vec_del1(vec_faces, idx_nh);
-
-         /* Remove the lock added by hicn_face_add */
-         hicn_face_unlock_with_id (fib_entry->next_hops[i]);
-         i++;
-        }
-    }
-
-  hicn_face_id_t *face_id;
-  vec_foreach(face_id, vec_faces)
-    {
-      strategy_vft->hicn_dpo_add_update_nh(*face_id, hicn_fib_entry_index);
-
-      /* Remove the lock added by hicn_face_add */
-      hicn_face_unlock_with_id (*face_id);
-
-    }
-  vec_free(vec_faces);
-}
-
-static void
-enable_disable_data_receiving (fib_protocol_t proto, u32 sw_if, u8 is_enable)
-{
-  if (proto == FIB_PROTOCOL_IP4 && sw_if != ~0)
-    vnet_feature_enable_disable ("ip4-local", "hicn-data-input-ip4",
-                                 sw_if, is_enable, 0, 0);
-  else if (proto == FIB_PROTOCOL_IP6 && sw_if != ~0)
-    vnet_feature_enable_disable ("ip6-local", "hicn-data-input-ip6",
-                                 sw_if, is_enable, 0, 0);
-
-}
-
-walk_rc_t enable_data_receiving_new_fib_entry (vnet_main_t * vnm,
-                                 vnet_sw_interface_t * si,
-                                 void *ctx)
-{
-  fib_protocol_t *proto = (fib_protocol_t *) ctx;
-  enable_disable_data_receiving(*proto, si->sw_if_index, 1);
-
-  return (WALK_CONTINUE);
-}
-
-walk_rc_t disable_data_receiving_rm_fib_entry (vnet_main_t * vnm,
-                                  vnet_sw_interface_t * si,
-                                  void *ctx)
-{
-  fib_protocol_t *proto = (fib_protocol_t *) ctx;
-  enable_disable_data_receiving(*proto, si->sw_if_index, 0);
-
-  return (WALK_CONTINUE);
-    }
-
-int
-hicn_route_enable (fib_prefix_t *prefix) {
-
-  int ret = HICN_ERROR_NONE;
-  fib_node_index_t fib_entry_index;
-
-  /* Check if the route already exist in the fib */
-  /*
-   * ASSUMPTION: we use table 0 which is the default table and it is
-   * already existing and locked
-   */
-  u32 fib_index = fib_table_find(prefix->fp_proto, 0);
-
-  fib_entry_index = fib_table_lookup_exact_match (fib_index, prefix);
-
-  if (fib_entry_index == FIB_NODE_INDEX_INVALID)
-    {
-      fib_entry_index = fib_table_lookup (fib_index, prefix);
-
-      fib_route_path_t * paths = fib_entry_encode(fib_entry_index);
-
-      fib_table_entry_path_add2(fib_index, prefix, FIB_SOURCE_CLI, FIB_ENTRY_FLAG_NONE, paths);
-    }
-
-  /* Check if the prefix is already enabled */
-  u32 fib_hicn_index = fib_table_find(prefix->fp_proto, HICN_FIB_TABLE);
-
-  fib_node_index_t fib_hicn_entry_index = fib_table_lookup_exact_match (fib_hicn_index, prefix);
-
-  if (fib_hicn_entry_index == FIB_NODE_INDEX_INVALID)
-    {
-      dpo_id_t dpo = DPO_INVALID;
-      index_t dpo_idx;
-      default_dpo.hicn_dpo_create (prefix->fp_proto, 0, NEXT_HOP_INVALID,
-                                   &dpo_idx);
-
-      /* the value we got when we registered */
-      /*
-       * This should be taken from the name?!? the index of the
-       * object
-       */
-      dpo_set (&dpo,
-               default_dpo.hicn_dpo_get_type (),
-               (ip46_address_is_ip4 (&prefix->fp_addr) ? DPO_PROTO_IP4 :
-                DPO_PROTO_IP6), dpo_idx);
-
-      hicn_dpo_ctx_t * fib_entry = hicn_strategy_dpo_ctx_get(dpo_idx);
-
-      fib_node_init (&fib_entry->fib_node, hicn_fib_node_type);
-      fib_node_lock (&fib_entry->fib_node);
-
-      fib_entry->fib_entry_index = fib_entry_track (fib_index,
-                                                    prefix,
-                                                    hicn_fib_node_type,
-                                                    dpo_idx, &fib_entry->fib_sibling);
-
-
-      /* Here is where we create the "via" like route */
-      /*
-       * For the moment we use the global one the prefix you want
-       * to match Neale suggested -- FIB_SOURCE_HICN the client
-       * that is adding them -- no easy explanation at this time…
-       */
-      CLIB_UNUSED (fib_node_index_t new_fib_node_index) =
-        fib_table_entry_special_dpo_add (fib_hicn_index,
-                                         prefix,
-                                         hicn_fib_src,
-                                         (FIB_ENTRY_FLAG_EXCLUSIVE |
-                                          FIB_ENTRY_FLAG_LOOSE_URPF_EXEMPT),
-                                         &dpo);
-
-      sync_hicn_fib_entry(fib_entry);
-
-      /* We added a route, therefore add one lock to the table */
-      fib_table_lock (fib_index, prefix->fp_proto, hicn_fib_src);
-
-      /* Enable the feature to punt data packet every time we enable a new hicn route
-       * For each enable there must be a disable to defenitely disable the feature
-       *
-       * We cannot enable only the interfaces on which we send out interest because
-       * Data packet  might be coming on in different interfaces, as in che case of mpls
-       * tunnels (packets are received from the physical nic, not the mpls tunnel interface).
-       */
-      vnet_main_t * vnm = vnet_get_main ();
-      vnet_sw_interface_walk(vnm, enable_data_receiving_new_fib_entry, &(prefix->fp_proto));
-
-      dpo_unlock (&dpo);
-    }
-  else
-    {
-      const dpo_id_t *load_balance_dpo_id;
-      const dpo_id_t *strategy_dpo_id;
-
-      /* Route already existing. We need to update the dpo. */
-      load_balance_dpo_id =
-	fib_entry_contribute_ip_forwarding (fib_hicn_entry_index);
-
-      /* The dpo is not a load balance dpo as expected */
-      if (load_balance_dpo_id->dpoi_type != DPO_LOAD_BALANCE)
-        {
-          ret = HICN_ERROR_ROUTE_NO_LD;
-          goto done;
-        }
-      else
-	{
-	  load_balance_t *lb =
-	    load_balance_get (load_balance_dpo_id->dpoi_index);
-
-          strategy_dpo_id = load_balance_get_bucket_i (lb, 0);
-
-          if (!dpo_is_hicn (strategy_dpo_id))
-            {
-              ret = HICN_ERROR_ROUTE_DPO_NO_HICN;
-              goto done;
-            }
-
-          if (lb->lb_n_buckets > 1)
-            {
-              ret = HICN_ERROR_ROUTE_MLT_LD;
-              goto done;
-            }
-
-          hicn_dpo_ctx_t * hicn_fib_entry = hicn_strategy_dpo_ctx_get(strategy_dpo_id->dpoi_index);
-
-          sync_hicn_fib_entry(hicn_fib_entry);
-        }
-    }
-
- done:
-  return ret;
-}
-
-int
-hicn_route_disable (fib_prefix_t *prefix) {
-
-  int ret = HICN_ERROR_NONE;
-
-  /* Check if the prefix is already enabled */
-  u32 fib_hicn_index = fib_table_find(prefix->fp_proto, HICN_FIB_TABLE);
-
-  fib_node_index_t fib_hicn_entry_index = fib_table_lookup_exact_match (fib_hicn_index, prefix);
-
-  if (fib_hicn_entry_index == FIB_NODE_INDEX_INVALID)
-    {
-      return HICN_ERROR_ROUTE_NOT_FOUND;
-    }
-  else
-    {
-      const dpo_id_t *load_balance_dpo_id;
-      const dpo_id_t *strategy_dpo_id;
-      hicn_dpo_ctx_t * hicn_fib_entry;
-
-      /* Route already existing. We need to update the dpo. */
-      load_balance_dpo_id =
-	fib_entry_contribute_ip_forwarding (fib_hicn_entry_index);
-
-      /* The dpo is not a load balance dpo as expected */
-      if (load_balance_dpo_id->dpoi_type != DPO_LOAD_BALANCE)
-        {
-          ret = HICN_ERROR_ROUTE_NO_LD;
-          goto done;
-        }
-      else
-	{
-	  load_balance_t *lb =
-	    load_balance_get (load_balance_dpo_id->dpoi_index);
-
-          strategy_dpo_id = load_balance_get_bucket_i (lb, 0);
-
-          if (!dpo_is_hicn (strategy_dpo_id))
-            {
-              ret = HICN_ERROR_ROUTE_DPO_NO_HICN;
-              goto done;
-            }
-
-          if (lb->lb_n_buckets > 1)
-            {
-              ret = HICN_ERROR_ROUTE_MLT_LD;
-              goto done;
-            }
-
-          hicn_fib_entry = hicn_strategy_dpo_ctx_get(strategy_dpo_id->dpoi_index);
-
-          for (int i = 0; i < hicn_fib_entry->entry_count; i++)
-            {
-              hicn_strategy_dpo_ctx_del_nh(hicn_fib_entry->next_hops[i], hicn_fib_entry);
-            }
-        }
-
-      fib_entry_untrack(hicn_fib_entry->fib_entry_index, hicn_fib_entry->fib_sibling);
-
-      fib_table_entry_special_remove (fib_hicn_index, prefix, hicn_fib_src);
-
-      /* Disable the feature to punt data packet every time we enable a new hicn route */
-      vnet_main_t * vnm = vnet_get_main ();
-      vnet_sw_interface_walk(vnm, disable_data_receiving_rm_fib_entry, &(prefix->fp_proto));
-    }
-
- done:
-  return ret;
-}
-
-
-static fib_node_t *
-hicn_ctx_node_get (fib_node_index_t index)
-{
-  hicn_dpo_ctx_t * hicn_ctx;
-
-  hicn_ctx = hicn_strategy_dpo_ctx_get(index);
-
-  return (&hicn_ctx->fib_node);
-}
-
-static void
-hicn_fib_last_lock_gone (fib_node_t *node)
-{
-}
-
-static hicn_dpo_ctx_t *
-hicn_ctx_from_fib_node (fib_node_t * node)
-{
-  return ((hicn_dpo_ctx_t *) (((char *) node) -
-                              STRUCT_OFFSET_OF (hicn_dpo_ctx_t, fib_node)));
-}
-
-static fib_node_back_walk_rc_t
-hicn_fib_back_walk_notify (fib_node_t *node,
-                            fib_node_back_walk_ctx_t *ctx)
-{
-
-  hicn_dpo_ctx_t *fib_entry = hicn_ctx_from_fib_node (node);
-
-  sync_hicn_fib_entry(fib_entry);
-
-  return (FIB_NODE_BACK_WALK_CONTINUE);
-}
-
-static void
-hicn_fib_show_memory (void)
-{
-}
-
-
-static const fib_node_vft_t hicn_fib_vft =
-{
- .fnv_get = hicn_ctx_node_get,
- .fnv_last_lock = hicn_fib_last_lock_gone,
- .fnv_back_walk = hicn_fib_back_walk_notify,
- .fnv_mem_show = hicn_fib_show_memory,
-};
-
-fib_table_walk_rc_t enable_data_on_existing_hicn(fib_node_index_t fei,
-                                                 void *ctx)
-{
-  u32 sw_if = *(u32 *)ctx;
-  const dpo_id_t *load_balance_dpo_id;
-  const dpo_id_t *strategy_dpo_id;
-
-  /* Route already existing. We need to update the dpo. */
-  load_balance_dpo_id =
-    fib_entry_contribute_ip_forwarding (fei);
-
-  /* The dpo is not a load balance dpo as expected */
-  if (load_balance_dpo_id->dpoi_type != DPO_LOAD_BALANCE)
-    {
-      goto done;
-    }
-  else
-    {
-      load_balance_t *lb =
-        load_balance_get (load_balance_dpo_id->dpoi_index);
-
-      strategy_dpo_id = load_balance_get_bucket_i (lb, 0);
-
-      if (!dpo_is_hicn (strategy_dpo_id))
-        {
-          goto done;
-        }
-
-      enable_disable_data_receiving (strategy_dpo_id->dpoi_proto, sw_if, 1);
-    }
-
- done:
-  return (FIB_TABLE_WALK_CONTINUE);
-}
-
-static clib_error_t *
-set_table_interface_add_del (vnet_main_t * vnm, u32 sw_if_index, u32 is_add)
-{
-
-  if (!is_add)
-    return HICN_ERROR_NONE;
-
-  vnet_sw_interface_t *  sw_int = vnet_get_sw_interface(vnm, sw_if_index);
-  vnet_hw_interface_t *  hw_int = vnet_get_hw_interface(vnm, sw_int->hw_if_index);
-
-  char * mpls = "mpls";
-  if (strstr((char *)hw_int->name, mpls) == NULL)
-    return 0;
-
-  int rv = ip_table_bind (FIB_PROTOCOL_IP4, sw_if_index, HICN_FIB_TABLE, 1);
-
-  if (!rv)
-    {
-      rv = ip_table_bind (FIB_PROTOCOL_IP6, sw_if_index, HICN_FIB_TABLE, 1);
-
-      if (rv)
-        {
-          /* An error occurred. Bind the interface back to the default fib */
-          ip_table_bind (FIB_PROTOCOL_IP4, sw_if_index, 0, 1);
-        }
-    }
-
-  u32 fib_index = fib_table_find(FIB_PROTOCOL_IP4,
-                                 HICN_FIB_TABLE);
-  if (fib_index != ~0)
-    {
-      /*
-       * Walk the ip4 and ip6 fib tables to discover existing hicn fib entries.
-       * For each of them we need to enable the feature to punt data packets.
-       */
-      fib_table_walk(fib_index,
-                     FIB_PROTOCOL_IP4,
-                     enable_data_on_existing_hicn,
-                     &sw_if_index);
-    }
-
-  fib_index = fib_table_find(FIB_PROTOCOL_IP6,
-                             HICN_FIB_TABLE);
-  if (fib_index != ~0)
-    {
-      fib_table_walk(fib_index,
-                     FIB_PROTOCOL_IP6,
-                     enable_data_on_existing_hicn,
-                     &sw_if_index);
-    }
-
-  return rv ? clib_error_return (0, "unable to add hicn table to interface") : 0;
-}
-
-VNET_SW_INTERFACE_ADD_DEL_FUNCTION (set_table_interface_add_del);
-
-void
-hicn_route_init ()
-{
-  vnet_main_t * vnm = vnet_get_main ();
-  vlib_main_t * vm = vlib_get_main ();
-  hicn_fib_src = fib_source_allocate ("hicn",
-				      FIB_SOURCE_HICN, FIB_SOURCE_BH_API);
-
-  hicn_fib_node_type = fib_node_register_new_type(&hicn_fib_vft);
-
-  ip_table_create(FIB_PROTOCOL_IP4, HICN_FIB_TABLE, 1, (const u8 *)"hicn4");
-  ip_table_create(FIB_PROTOCOL_IP6, HICN_FIB_TABLE, 1, (const u8 *)"hicn6");
-
-  u32 sw_if_index;
-  u8 mac_address[6];
-  u8 is_specified = 0;
-  u32 user_instance = 0;
-
-  vnet_create_loopback_interface (&sw_if_index, mac_address,
-                                  is_specified, user_instance);
-
-  localhost4.as_u8[0] = 127;
-  localhost4.as_u8[3] = 1;
-  u32 length4 = 32, length6 = 128, is_del = 0, flags = 0;
-
-  localhost6.as_u8[15] = 1;
-
-  ip4_add_del_interface_address (vm, sw_if_index, &localhost4, length4, is_del);
-  ip6_add_del_interface_address (vm, sw_if_index, &localhost6, length6, is_del);
-
-  flags |= VNET_SW_INTERFACE_FLAG_ADMIN_UP;
-  vnet_sw_interface_set_flags (vnm, sw_if_index, flags);
-}
-
-/*
- * fd.io coding-style-patch-verification: ON
- *
- * Local Variables: eval: (c-set-style "gnu") End:
- */