text: /*
   *------------------------------------------------------------------
   * ip_api.c - vnet ip api
   *
   * Copyright (c) 2016 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/vnet.h>
  #include <vlibmemory/api.h>
  
  #include <vnet/interface.h>
  #include <vnet/api_errno.h>
  #include <vnet/ethernet/ethernet.h>
  #include <vnet/ip/ip.h>
  #include <vnet/ip/ip_neighbor.h>
  #include <vnet/ip/ip6_neighbor.h>
  #include <vnet/ip/ip_punt_drop.h>
  #include <vnet/fib/fib_table.h>
  #include <vnet/fib/fib_api.h>
  #include <vnet/dpo/drop_dpo.h>
  #include <vnet/dpo/receive_dpo.h>
  #include <vnet/dpo/lookup_dpo.h>
  #include <vnet/dpo/classify_dpo.h>
  #include <vnet/dpo/ip_null_dpo.h>
  #include <vnet/ethernet/arp_packet.h>
  #include <vnet/mfib/ip6_mfib.h>
  #include <vnet/mfib/ip4_mfib.h>
  #include <vnet/mfib/mfib_signal.h>
  #include <vnet/mfib/mfib_entry.h>
  #include <vnet/ip/ip_source_and_port_range_check.h>
  #include <vnet/fib/ip4_fib.h>
  #include <vnet/fib/ip6_fib.h>
  #include <vnet/ip/ip6_hop_by_hop.h>
  #include <vnet/ip/ip4_reassembly.h>
  #include <vnet/ip/ip6_reassembly.h>
  #include <vnet/ethernet/arp.h>
  #include <vnet/ip/ip_types_api.h>
  
  #include <vnet/vnet_msg_enum.h>
  
  #define vl_typedefs		/* define message structures */
  #include <vnet/vnet_all_api_h.h>
  #undef vl_typedefs
  
  #define vl_endianfun		/* define message structures */
  #include <vnet/vnet_all_api_h.h>
  #undef vl_endianfun
  
  /* instantiate all the print functions we know about */
  #define vl_print(handle, ...) vlib_cli_output (handle, __VA_ARGS__)
  #define vl_printfun
  #include <vnet/vnet_all_api_h.h>
  #undef vl_printfun
  
  #include <vlibapi/api_helper_macros.h>
  
  
  #define foreach_ip_api_msg                                              \
  _(IP_FIB_DUMP, ip_fib_dump)                                             \
  _(IP6_FIB_DUMP, ip6_fib_dump)                                           \
  _(IP_MFIB_DUMP, ip_mfib_dump)                                           \
  _(IP6_MFIB_DUMP, ip6_mfib_dump)                                         \
  _(IP_NEIGHBOR_DUMP, ip_neighbor_dump)                                   \
  _(IP_MROUTE_ADD_DEL, ip_mroute_add_del)                                 \
  _(MFIB_SIGNAL_DUMP, mfib_signal_dump)                                   \
  _(IP_ADDRESS_DUMP, ip_address_dump)                                     \
  _(IP_UNNUMBERED_DUMP, ip_unnumbered_dump)                               \
  _(IP_DUMP, ip_dump)                                                     \
  _(IP_NEIGHBOR_ADD_DEL, ip_neighbor_add_del)                             \
  _(SET_ARP_NEIGHBOR_LIMIT, set_arp_neighbor_limit)			\
  _(IP_PROBE_NEIGHBOR, ip_probe_neighbor)      			        \
  _(IP_SCAN_NEIGHBOR_ENABLE_DISABLE, ip_scan_neighbor_enable_disable)     \
  _(WANT_IP4_ARP_EVENTS, want_ip4_arp_events)                             \
  _(WANT_IP6_ND_EVENTS, want_ip6_nd_events)                               \
  _(WANT_IP6_RA_EVENTS, want_ip6_ra_events)                               \
  _(PROXY_ARP_ADD_DEL, proxy_arp_add_del)                                 \
  _(PROXY_ARP_DUMP, proxy_arp_dump)                                       \
  _(PROXY_ARP_INTFC_ENABLE_DISABLE, proxy_arp_intfc_enable_disable)       \
   _(PROXY_ARP_INTFC_DUMP, proxy_arp_intfc_dump)                          \
  _(RESET_FIB, reset_fib)							\
  _(IP_ADD_DEL_ROUTE, ip_add_del_route)                                   \
  _(IP_TABLE_ADD_DEL, ip_table_add_del)                                   \
  _(IP_PUNT_POLICE, ip_punt_police)                                       \
  _(IP_PUNT_REDIRECT, ip_punt_redirect)                                   \
  _(SET_IP_FLOW_HASH,set_ip_flow_hash)                                    \
  _(SW_INTERFACE_IP6ND_RA_CONFIG, sw_interface_ip6nd_ra_config)           \
  _(SW_INTERFACE_IP6ND_RA_PREFIX, sw_interface_ip6nd_ra_prefix)           \
  _(IP6ND_PROXY_ADD_DEL, ip6nd_proxy_add_del)                             \
  _(IP6ND_PROXY_DUMP, ip6nd_proxy_dump)                                   \
  _(IP6ND_SEND_ROUTER_SOLICITATION, ip6nd_send_router_solicitation)       \
  _(SW_INTERFACE_IP6_ENABLE_DISABLE, sw_interface_ip6_enable_disable )    \
  _(IP_CONTAINER_PROXY_ADD_DEL, ip_container_proxy_add_del)               \
  _(IP_CONTAINER_PROXY_DUMP, ip_container_proxy_dump)                     \
  _(IOAM_ENABLE, ioam_enable)                                             \
  _(IOAM_DISABLE, ioam_disable)                                           \
  _(IP_SOURCE_AND_PORT_RANGE_CHECK_ADD_DEL,                               \
    ip_source_and_port_range_check_add_del)                               \
  _(IP_SOURCE_AND_PORT_RANGE_CHECK_INTERFACE_ADD_DEL,                     \
    ip_source_and_port_range_check_interface_add_del)                     \
  _(IP_SOURCE_CHECK_INTERFACE_ADD_DEL,                                    \
    ip_source_check_interface_add_del)                                    \
  _(IP_REASSEMBLY_SET, ip_reassembly_set)                                 \
  _(IP_REASSEMBLY_GET, ip_reassembly_get)                                 \
  _(IP_REASSEMBLY_ENABLE_DISABLE, ip_reassembly_enable_disable)           \
  _(IP_PUNT_REDIRECT_DUMP, ip_punt_redirect_dump)
  
  
  extern void stats_dslock_with_hint (int hint, int tag);
  extern void stats_dsunlock (void);
  
  static void
  send_ip_neighbor_details (u32 sw_if_index,
  			  u8 is_ipv6,
  			  u8 is_static,
  			  u8 * mac_address,
  			  u8 * ip_address, vl_api_registration_t * reg,
  			  u32 context)
  {
    vl_api_ip_neighbor_details_t *mp;
  
    mp = vl_msg_api_alloc (sizeof (*mp));
    clib_memset (mp, 0, sizeof (*mp));
    mp->_vl_msg_id = ntohs (VL_API_IP_NEIGHBOR_DETAILS);
    mp->context = context;
    mp->sw_if_index = htonl (sw_if_index);
    mp->is_ipv6 = is_ipv6;
    mp->is_static = is_static;
    memcpy (mp->mac_address, mac_address, 6);
    memcpy (mp->ip_address, ip_address, (is_ipv6) ? 16 : 4);
  
    vl_api_send_msg (reg, (u8 *) mp);
  }
  
  static void
  vl_api_ip_neighbor_dump_t_handler (vl_api_ip_neighbor_dump_t * mp)
  {
    vl_api_registration_t *reg;
  
    reg = vl_api_client_index_to_registration (mp->client_index);
    if (!reg)
      return;
  
    u32 sw_if_index = ntohl (mp->sw_if_index);
  
    if (mp->is_ipv6)
      {
        ip6_neighbor_t *n, *ns;
  
        ns = ip6_neighbors_entries (sw_if_index);
        /* *INDENT-OFF* */
        vec_foreach (n, ns)
        {
          send_ip_neighbor_details
            (n->key.sw_if_index, mp->is_ipv6,
  	   ((n->flags & IP6_NEIGHBOR_FLAG_STATIC) ? 1 : 0),
             (u8 *) n->link_layer_address,
             (u8 *) & (n->key.ip6_address.as_u8),
             reg, mp->context);
        }
        /* *INDENT-ON* */
        vec_free (ns);
      }
    else
      {
        ethernet_arp_ip4_entry_t *n, *ns;
  
        ns = ip4_neighbor_entries (sw_if_index);
        /* *INDENT-OFF* */
        vec_foreach (n, ns)
        {
          send_ip_neighbor_details (n->sw_if_index, mp->is_ipv6,
            ((n->flags & ETHERNET_ARP_IP4_ENTRY_FLAG_STATIC) ? 1 : 0),
            (u8*) n->ethernet_address,
            (u8*) & (n->ip4_address.as_u8),
            reg, mp->context);
        }
        /* *INDENT-ON* */
        vec_free (ns);
      }
  }
  
  static void
  send_ip_fib_details (vpe_api_main_t * am,
  		     vl_api_registration_t * reg,
  		     const fib_table_t * table,
  		     const fib_prefix_t * pfx,
  		     fib_route_path_encode_t * api_rpaths, u32 context)
  {
    vl_api_ip_fib_details_t *mp;
    fib_route_path_encode_t *api_rpath;
    vl_api_fib_path_t *fp;
    int path_count;
  
    path_count = vec_len (api_rpaths);
    mp = vl_msg_api_alloc (sizeof (*mp) + path_count * sizeof (*fp));
    if (!mp)
      return;
    clib_memset (mp, 0, sizeof (*mp));
    mp->_vl_msg_id = ntohs (VL_API_IP_FIB_DETAILS);
    mp->context = context;
  
    mp->table_id = htonl (table->ft_table_id);
    memcpy (mp->table_name, table->ft_desc,
  	  clib_min (vec_len (table->ft_desc), sizeof (mp->table_name)));
    mp->address_length = pfx->fp_len;
    memcpy (mp->address, &pfx->fp_addr.ip4, sizeof (pfx->fp_addr.ip4));
    mp->stats_index =
      htonl (fib_table_entry_get_stats_index (table->ft_index, pfx));
  
    mp->count = htonl (path_count);
    fp = mp->path;
    vec_foreach (api_rpath, api_rpaths)
    {
      fib_api_path_encode (api_rpath, fp);
      fp++;
    }
  
    vl_api_send_msg (reg, (u8 *) mp);
  }
  
  typedef struct vl_api_ip_fib_dump_walk_ctx_t_
  {
    fib_node_index_t *feis;
  } vl_api_ip_fib_dump_walk_ctx_t;
  
  static fib_table_walk_rc_t
  vl_api_ip_fib_dump_walk (fib_node_index_t fei, void *arg)
  {
    vl_api_ip_fib_dump_walk_ctx_t *ctx = arg;
  
    vec_add1 (ctx->feis, fei);
  
    return (FIB_TABLE_WALK_CONTINUE);
  }
  
  static void
  vl_api_ip_fib_dump_t_handler (vl_api_ip_fib_dump_t * mp)
  {
    vpe_api_main_t *am = &vpe_api_main;
    vl_api_registration_t *reg;
    ip4_main_t *im = &ip4_main;
    fib_table_t *fib_table;
    fib_node_index_t *lfeip;
    const fib_prefix_t *pfx;
    u32 fib_index;
    fib_route_path_encode_t *api_rpaths;
    vl_api_ip_fib_dump_walk_ctx_t ctx = {
      .feis = NULL,
    };
  
    reg = vl_api_client_index_to_registration (mp->client_index);
    if (!reg)
      return;
  
    /* *INDENT-OFF* */
    pool_foreach (fib_table, im->fibs,
    ({
      fib_table_walk(fib_table->ft_index,
                     FIB_PROTOCOL_IP4,
                     vl_api_ip_fib_dump_walk,
                     &ctx);
    }));
    /* *INDENT-ON* */
  
    vec_sort_with_function (ctx.feis, fib_entry_cmp_for_sort);
  
    vec_foreach (lfeip, ctx.feis)
    {
      pfx = fib_entry_get_prefix (*lfeip);
      fib_index = fib_entry_get_fib_index (*lfeip);
      fib_table = fib_table_get (fib_index, pfx->fp_proto);
      api_rpaths = NULL;
      fib_entry_encode (*lfeip, &api_rpaths);
      send_ip_fib_details (am, reg, fib_table, pfx, api_rpaths, mp->context);
      vec_free (api_rpaths);
    }
  
    vec_free (ctx.feis);
  }
  
  static void
  send_ip6_fib_details (vpe_api_main_t * am,
  		      vl_api_registration_t * reg,
  		      const fib_table_t * table,
  		      const fib_prefix_t * pfx,
  		      fib_route_path_encode_t * api_rpaths, u32 context)
  {
    vl_api_ip6_fib_details_t *mp;
    fib_route_path_encode_t *api_rpath;
    vl_api_fib_path_t *fp;
    int path_count;
  
    path_count = vec_len (api_rpaths);
    mp = vl_msg_api_alloc (sizeof (*mp) + path_count * sizeof (*fp));
    if (!mp)
      return;
    clib_memset (mp, 0, sizeof (*mp));
    mp->_vl_msg_id = ntohs (VL_API_IP6_FIB_DETAILS);
    mp->context = context;
  
    mp->table_id = htonl (table->ft_table_id);
    mp->address_length = pfx->fp_len;
    memcpy (mp->address, &pfx->fp_addr.ip6, sizeof (pfx->fp_addr.ip6));
    memcpy (mp->table_name, table->ft_desc,
  	  clib_min (vec_len (table->ft_desc), sizeof (mp->table_name)));
    mp->stats_index =
      htonl (fib_table_entry_get_stats_index (table->ft_index, pfx));
  
    mp->count = htonl (path_count);
    fp = mp->path;
    vec_foreach (api_rpath, api_rpaths)
    {
      fib_api_path_encode (api_rpath, fp);
      fp++;
    }
  
    vl_api_send_msg (reg, (u8 *) mp);
  }
  
  typedef struct apt_ip6_fib_show_ctx_t_
  {
    u32 fib_index;
    fib_node_index_t *entries;
  } api_ip6_fib_show_ctx_t;
  
  static void
  api_ip6_fib_table_put_entries (clib_bihash_kv_24_8_t * kvp, void *arg)
  {
    api_ip6_fib_show_ctx_t *ctx = arg;
  
    if ((kvp->key[2] >> 32) == ctx->fib_index)
      {
        vec_add1 (ctx->entries, kvp->value);
      }
  }
  
  static void
  api_ip6_fib_table_get_all (vl_api_registration_t * reg,
  			   vl_api_ip6_fib_dump_t * mp,
  			   fib_table_t * fib_table)
  {
    vpe_api_main_t *am = &vpe_api_main;
    ip6_main_t *im6 = &ip6_main;
    fib_node_index_t *fib_entry_index;
    api_ip6_fib_show_ctx_t ctx = {
      .fib_index = fib_table->ft_index,
      .entries = NULL,
    };
    fib_route_path_encode_t *api_rpaths;
    const fib_prefix_t *pfx;
  
    BV (clib_bihash_foreach_key_value_pair)
      ((BVT (clib_bihash) *) & im6->ip6_table[IP6_FIB_TABLE_NON_FWDING].
       ip6_hash, api_ip6_fib_table_put_entries, &ctx);
  
    vec_sort_with_function (ctx.entries, fib_entry_cmp_for_sort);
  
    vec_foreach (fib_entry_index, ctx.entries)
    {
      pfx = fib_entry_get_prefix (*fib_entry_index);
      api_rpaths = NULL;
      fib_entry_encode (*fib_entry_index, &api_rpaths);
      send_ip6_fib_details (am, reg, fib_table, pfx, api_rpaths, mp->context);
      vec_free (api_rpaths);
    }
  
    vec_free (ctx.entries);
  }
  
  static void
  vl_api_ip6_fib_dump_t_handler (vl_api_ip6_fib_dump_t * mp)
  {
    vl_api_registration_t *reg;
    ip6_main_t *im6 = &ip6_main;
    fib_table_t *fib_table;
  
    reg = vl_api_client_index_to_registration (mp->client_index);
    if (!reg)
      return;
  
    /* *INDENT-OFF* */
    pool_foreach (fib_table, im6->fibs,
    ({
      /* don't send link locals */
      if (fib_table->ft_flags & FIB_TABLE_FLAG_IP6_LL)
        continue;
  
      api_ip6_fib_table_get_all(reg, mp, fib_table);
    }));
    /* *INDENT-ON* */
  }
  
  static void
  send_ip_mfib_details (vl_api_registration_t * reg,
  		      u32 context, u32 table_id, fib_node_index_t mfei)
  {
    fib_route_path_encode_t *api_rpath, *api_rpaths = NULL;
    vl_api_ip_mfib_details_t *mp;
    mfib_entry_t *mfib_entry;
    vl_api_fib_path_t *fp;
    mfib_prefix_t pfx;
    int path_count;
  
    mfib_entry = mfib_entry_get (mfei);
    mfib_entry_get_prefix (mfei, &pfx);
    mfib_entry_encode (mfei, &api_rpaths);
  
    path_count = vec_len (api_rpaths);
    mp = vl_msg_api_alloc (sizeof (*mp) + path_count * sizeof (*fp));
    if (!mp)
      return;
    clib_memset (mp, 0, sizeof (*mp));
    mp->_vl_msg_id = ntohs (VL_API_IP_MFIB_DETAILS);
    mp->context = context;
  
    mp->rpf_id = mfib_entry->mfe_rpf_id;
    mp->entry_flags = mfib_entry->mfe_flags;
    mp->table_id = htonl (table_id);
    mp->address_length = pfx.fp_len;
    memcpy (mp->grp_address, &pfx.fp_grp_addr.ip4,
  	  sizeof (pfx.fp_grp_addr.ip4));
    memcpy (mp->src_address, &pfx.fp_src_addr.ip4,
  	  sizeof (pfx.fp_src_addr.ip4));
  
    mp->count = htonl (path_count);
    fp = mp->path;
    vec_foreach (api_rpath, api_rpaths)
    {
      fib_api_path_encode (api_rpath, fp);
      fp++;
    }
    vec_free (api_rpaths);
  
    vl_api_send_msg (reg, (u8 *) mp);
  }
  
  typedef struct vl_api_ip_mfib_dump_ctc_t_
  {
    fib_node_index_t *entries;
  } vl_api_ip_mfib_dump_ctc_t;
  
  static int
  vl_api_ip_mfib_table_dump_walk (fib_node_index_t fei, void *arg)
  {
    vl_api_ip_mfib_dump_ctc_t *ctx = arg;
  
    vec_add1 (ctx->entries, fei);
  
    return (0);
  }
  
  static void
  vl_api_ip_mfib_dump_t_handler (vl_api_ip_mfib_dump_t * mp)
  {
    vl_api_registration_t *reg;
    ip4_main_t *im = &ip4_main;
    mfib_table_t *mfib_table;
    fib_node_index_t *mfeip;
    vl_api_ip_mfib_dump_ctc_t ctx = {
      .entries = NULL,
    };
  
    reg = vl_api_client_index_to_registration (mp->client_index);
    if (!reg)
      return;
  
    /* *INDENT-OFF* */
    pool_foreach (mfib_table, im->mfibs,
    ({
      ip4_mfib_table_walk(&mfib_table->v4,
                          vl_api_ip_mfib_table_dump_walk,
                          &ctx);
  
      vec_sort_with_function (ctx.entries, mfib_entry_cmp_for_sort);
  
      vec_foreach (mfeip, ctx.entries)
      {
        send_ip_mfib_details (reg, mp->context,
                              mfib_table->mft_table_id,
                              *mfeip);
      }
      vec_reset_length (ctx.entries);
  
    }));
    /* *INDENT-ON* */
  
    vec_free (ctx.entries);
  }
  
  static void
  send_ip6_mfib_details (vpe_api_main_t * am,
  		       vl_api_registration_t * reg,
  		       u32 table_id,
  		       mfib_prefix_t * pfx,
  		       fib_route_path_encode_t * api_rpaths, u32 context)
  {
    vl_api_ip6_mfib_details_t *mp;
    fib_route_path_encode_t *api_rpath;
    vl_api_fib_path_t *fp;
    int path_count;
  
    path_count = vec_len (api_rpaths);
    mp = vl_msg_api_alloc (sizeof (*mp) + path_count * sizeof (*fp));
    if (!mp)
      return;
    clib_memset (mp, 0, sizeof (*mp));
    mp->_vl_msg_id = ntohs (VL_API_IP6_MFIB_DETAILS);
    mp->context = context;
  
    mp->table_id = htonl (table_id);
    mp->address_length = pfx->fp_len;
    memcpy (mp->grp_address, &pfx->fp_grp_addr.ip6,
  	  sizeof (pfx->fp_grp_addr.ip6));
    memcpy (mp->src_address, &pfx->fp_src_addr.ip6,
  	  sizeof (pfx->fp_src_addr.ip6));
  
    mp->count = htonl (path_count);
    fp = mp->path;
    vec_foreach (api_rpath, api_rpaths)
    {
      fib_api_path_encode (api_rpath, fp);
      fp++;
    }
  
    vl_api_send_msg (reg, (u8 *) mp);
  }
  
  typedef struct vl_api_ip6_mfib_dump_ctc_t_
  {
    fib_node_index_t *entries;
  } vl_api_ip6_mfib_dump_ctc_t;
  
  static int
  vl_api_ip6_mfib_table_dump_walk (fib_node_index_t fei, void *arg)
  {
    vl_api_ip6_mfib_dump_ctc_t *ctx = arg;
  
    vec_add1 (ctx->entries, fei);
  
    return (0);
  }
  
  static void
  vl_api_ip6_mfib_dump_t_handler (vl_api_ip6_mfib_dump_t * mp)
  {
    vpe_api_main_t *am = &vpe_api_main;
    vl_api_registration_t *reg;
    ip6_main_t *im = &ip6_main;
    mfib_table_t *mfib_table;
    fib_node_index_t *mfeip;
    mfib_prefix_t pfx;
    fib_route_path_encode_t *api_rpaths = NULL;
    vl_api_ip6_mfib_dump_ctc_t ctx = {
      .entries = NULL,
    };
  
    reg = vl_api_client_index_to_registration (mp->client_index);
    if (!reg)
      return;
  
  
    /* *INDENT-OFF* */
    pool_foreach (mfib_table, im->mfibs,
    ({
      ip6_mfib_table_walk(&mfib_table->v6,
                          vl_api_ip6_mfib_table_dump_walk,
                          &ctx);
  
      vec_sort_with_function (ctx.entries, mfib_entry_cmp_for_sort);
  
      vec_foreach(mfeip, ctx.entries)
      {
        mfib_entry_get_prefix (*mfeip, &pfx);
        mfib_entry_encode (*mfeip, &api_rpaths);
        send_ip6_mfib_details (am, reg,
                               mfib_table->mft_table_id,
                               &pfx, api_rpaths,
                               mp->context);
      }
      vec_reset_length (api_rpaths);
      vec_reset_length (ctx.entries);
  
    }));
    /* *INDENT-ON* */
  
    vec_free (ctx.entries);
    vec_free (api_rpaths);
  }
  
  static void
  vl_api_ip_punt_police_t_handler (vl_api_ip_punt_police_t * mp,
  				 vlib_main_t * vm)
  {
    vl_api_ip_punt_police_reply_t *rmp;
    int rv = 0;
  
    if (mp->is_ip6)
      ip6_punt_policer_add_del (mp->is_add, ntohl (mp->policer_index));
    else
      ip4_punt_policer_add_del (mp->is_add, ntohl (mp->policer_index));
  
    REPLY_MACRO (VL_API_IP_PUNT_POLICE_REPLY);
  }
  
  static void
  vl_api_ip_punt_redirect_t_handler (vl_api_ip_punt_redirect_t * mp,
  				   vlib_main_t * vm)
  {
    vl_api_ip_punt_redirect_reply_t *rmp;
    int rv = 0;
    ip46_type_t ipv;
    ip46_address_t nh;
  
    if (!vnet_sw_if_index_is_api_valid (ntohl (mp->punt.tx_sw_if_index)))
      goto bad_sw_if_index;
  
    ipv = ip_address_decode (&mp->punt.nh, &nh);
    if (mp->is_add)
      {
        if (ipv == IP46_TYPE_IP6)
  	{
  	  ip6_punt_redirect_add (ntohl (mp->punt.rx_sw_if_index),
  				 ntohl (mp->punt.tx_sw_if_index), &nh);
  	}
        else if (ipv == IP46_TYPE_IP4)
  	{
  	  ip4_punt_redirect_add (ntohl (mp->punt.rx_sw_if_index),
  				 ntohl (mp->punt.tx_sw_if_index), &nh);
  	}
      }
    else
      {
        if (ipv == IP46_TYPE_IP6)
  	{
  	  ip6_punt_redirect_del (ntohl (mp->punt.rx_sw_if_index));
  	}
        else if (ipv == IP46_TYPE_IP4)
  	{
  	  ip4_punt_redirect_del (ntohl (mp->punt.rx_sw_if_index));
  	}
      }
  
    BAD_SW_IF_INDEX_LABEL;
  
    REPLY_MACRO (VL_API_IP_PUNT_REDIRECT_REPLY);
  }
  
  static void
  vl_api_ip_neighbor_add_del_t_handler (vl_api_ip_neighbor_add_del_t * mp,
  				      vlib_main_t * vm)
  {
    ip46_address_t ip = ip46_address_initializer;
    vl_api_ip_neighbor_add_del_reply_t *rmp;
    ip_neighbor_flags_t flags;
    u32 stats_index = ~0;
    int rv = 0;
  
    VALIDATE_SW_IF_INDEX (mp);
  
    stats_dslock_with_hint (1 /* release hint */ , 7 /* tag */ );
  
    flags = IP_NEIGHBOR_FLAG_NODE;
    if (mp->is_static)
      flags |= IP_NEIGHBOR_FLAG_STATIC;
    if (mp->is_no_adj_fib)
      flags |= IP_NEIGHBOR_FLAG_NO_ADJ_FIB;
  
    if (mp->is_ipv6)
      clib_memcpy (&ip.ip6, mp->dst_address, 16);
    else
      clib_memcpy (&ip.ip4, mp->dst_address, 4);
  
    if (mp->is_add)
      rv = ip_neighbor_add (&ip, mp->is_ipv6, mp->mac_address,
  			  ntohl (mp->sw_if_index), flags, &stats_index);
    else
      rv = ip_neighbor_del (&ip, mp->is_ipv6, ntohl (mp->sw_if_index));
  
    stats_dsunlock ();
  
    BAD_SW_IF_INDEX_LABEL;
  
    /* *INDENT-OFF* */
    REPLY_MACRO2 (VL_API_IP_NEIGHBOR_ADD_DEL_REPLY,
    ({
      rmp->stats_index = htonl (stats_index);
    }));
    /* *INDENT-ON* */
  }
  
  void
  ip_table_delete (fib_protocol_t fproto, u32 table_id, u8 is_api)
  {
    u32 fib_index, mfib_index;
  
    /*
     * ignore action on the default table - this is always present
     * and cannot be added nor deleted from the API
     */
    if (0 != table_id)
      {
        /*
         * The API holds only one lock on the table.
         * i.e. it can be added many times via the API but needs to be
         * deleted only once.
         * The FIB index for unicast and multicast is not necessarily the
         * same, since internal VPP systesm (like LISP and SR) create
         * their own unicast tables.
         */
        fib_index = fib_table_find (fproto, table_id);
        mfib_index = mfib_table_find (fproto, table_id);
  
        if (~0 != fib_index)
  	{
  	  fib_table_unlock (fib_index, fproto,
  			    (is_api ? FIB_SOURCE_API : FIB_SOURCE_CLI));
  	}
        if (~0 != mfib_index)
  	{
  	  mfib_table_unlock (mfib_index, fproto,
  			     (is_api ? MFIB_SOURCE_API : MFIB_SOURCE_CLI));
  	}
      }
  }
  
  void
  vl_api_ip_table_add_del_t_handler (vl_api_ip_table_add_del_t * mp)
  {
    vl_api_ip_table_add_del_reply_t *rmp;
    fib_protocol_t fproto = (mp->is_ipv6 ? FIB_PROTOCOL_IP6 : FIB_PROTOCOL_IP4);
    u32 table_id = ntohl (mp->table_id);
    int rv = 0;
  
    if (mp->is_add)
      {
        ip_table_create (fproto, table_id, 1, mp->name);
      }
    else
      {
        ip_table_delete (fproto, table_id, 1);
      }
  
    REPLY_MACRO (VL_API_IP_TABLE_ADD_DEL_REPLY);
  }
  
  int
  add_del_route_t_handler (u8 is_multipath,
  			 u8 is_add,
  			 u8 is_drop,
  			 u8 is_unreach,
  			 u8 is_prohibit,
  			 u8 is_local,
  			 u8 is_multicast,
  			 u8 is_classify,
  			 u32 classify_table_index,
  			 u8 is_resolve_host,
  			 u8 is_resolve_attached,
  			 u8 is_interface_rx,
  			 u8 is_rpf_id,
  			 u8 is_dvr,
  			 u8 is_source_lookup,
  			 u8 is_udp_encap,
  			 u32 fib_index,
  			 const fib_prefix_t * prefix,
  			 dpo_proto_t next_hop_proto,
  			 const ip46_address_t * next_hop,
  			 u32 next_hop_id,
  			 u32 next_hop_sw_if_index,
  			 u8 next_hop_fib_index,
  			 u16 next_hop_weight,
  			 u16 next_hop_preference,
  			 mpls_label_t next_hop_via_label,
  			 fib_mpls_label_t * next_hop_out_label_stack)
  {
    vnet_classify_main_t *cm = &vnet_classify_main;
    fib_route_path_flags_t path_flags = FIB_ROUTE_PATH_FLAG_NONE;
    fib_route_path_t path = {
      .frp_proto = next_hop_proto,
      .frp_addr = (NULL == next_hop ? zero_addr : *next_hop),
      .frp_sw_if_index = next_hop_sw_if_index,
      .frp_fib_index = next_hop_fib_index,
      .frp_weight = next_hop_weight,
      .frp_preference = next_hop_preference,
      .frp_label_stack = next_hop_out_label_stack,
    };
    fib_route_path_t *paths = NULL;
    fib_entry_flag_t entry_flags = FIB_ENTRY_FLAG_NONE;
  
    /*
     * the special INVALID label meams we are not recursing via a
     * label. Exp-null value is never a valid via-label so that
     * also means it's not a via-label and means clients that set
     * it to 0 by default get the expected behaviour
     */
    if ((MPLS_LABEL_INVALID != next_hop_via_label) && (0 != next_hop_via_label))
      {
        path.frp_proto = DPO_PROTO_MPLS;
        path.frp_local_label = next_hop_via_label;
        path.frp_eos = MPLS_NON_EOS;
      }
    if (is_dvr)
      path_flags |= FIB_ROUTE_PATH_DVR;
    if (is_resolve_host)
      path_flags |= FIB_ROUTE_PATH_RESOLVE_VIA_HOST;
    if (is_resolve_attached)
      path_flags |= FIB_ROUTE_PATH_RESOLVE_VIA_ATTACHED;
    if (is_interface_rx)
      path_flags |= FIB_ROUTE_PATH_INTF_RX;
    if (is_rpf_id)
      path_flags |= FIB_ROUTE_PATH_RPF_ID;
    if (is_source_lookup)
      path_flags |= FIB_ROUTE_PATH_SOURCE_LOOKUP;
    if (is_multicast)
      entry_flags |= FIB_ENTRY_FLAG_MULTICAST;
    if (is_udp_encap)
      {
        path_flags |= FIB_ROUTE_PATH_UDP_ENCAP;
        path.frp_udp_encap_id = next_hop_id;
      }
    if (path.frp_sw_if_index == ~0 && ip46_address_is_zero (&path.frp_addr)
        && path.frp_fib_index != ~0)
      {
        path_flags |= FIB_ROUTE_PATH_DEAG;
      }
  
    path.frp_flags = path_flags;
  
    stats_dslock_with_hint (1 /* release hint */ , 2 /* tag */ );
  
    if (is_drop || is_local || is_classify || is_unreach || is_prohibit)
      {
        /*
         * special route types that link directly to the adj
         */
        if (is_add)
  	{
  	  dpo_id_t dpo = DPO_INVALID;
  	  dpo_proto_t dproto;
  
  	  dproto = fib_proto_to_dpo (prefix->fp_proto);
  
  	  if (is_drop)
  	    ip_null_dpo_add_and_lock (dproto, IP_NULL_ACTION_NONE, &dpo);
  	  else if (is_local)
  	    receive_dpo_add_or_lock (dproto, ~0, NULL, &dpo);
  	  else if (is_unreach)
  	    ip_null_dpo_add_and_lock (dproto,
  				      IP_NULL_ACTION_SEND_ICMP_UNREACH, &dpo);
  	  else if (is_prohibit)
  	    ip_null_dpo_add_and_lock (dproto,
  				      IP_NULL_ACTION_SEND_ICMP_PROHIBIT,
  				      &dpo);
  	  else if (is_classify)
  	    {
  	      if (pool_is_free_index (cm->tables,
  				      ntohl (classify_table_index)))
  		{
  		  stats_dsunlock ();
  		  return VNET_API_ERROR_NO_SUCH_TABLE;
  		}
  
  	      dpo_set (&dpo, DPO_CLASSIFY, dproto,
  		       classify_dpo_create (dproto,
  					    ntohl (classify_table_index)));
  	    }
  	  else
  	    {
  	      stats_dsunlock ();
  	      return VNET_API_ERROR_NO_SUCH_TABLE;
  	    }
  
  	  fib_table_entry_special_dpo_update (fib_index,
  					      prefix,
  					      FIB_SOURCE_API,
  					      FIB_ENTRY_FLAG_EXCLUSIVE, &dpo);
  	  dpo_reset (&dpo);
  	}
        else
  	{
  	  fib_table_entry_special_remove (fib_index, prefix, FIB_SOURCE_API);
  	}
      }
    else if (is_multipath)
      {
        vec_add1 (paths, path);
  
        if (is_add)
  	fib_table_entry_path_add2 (fib_index,
  				   prefix,
  				   FIB_SOURCE_API, entry_flags, paths);
        else
  	fib_table_entry_path_remove2 (fib_index,
  				      prefix, FIB_SOURCE_API, paths);
  
        vec_free (paths);
      }
    else
      {
        if (is_add)
  	{
  	  vec_add1 (paths, path);
  	  fib_table_entry_update (fib_index,
  				  prefix, FIB_SOURCE_API, entry_flags, paths);
  	  vec_free (paths);
  	}
        else
  	{
  	  fib_table_entry_delete (fib_index, prefix, FIB_SOURCE_API);
  	}
      }
  
    stats_dsunlock ();
    return (0);
  }
  
  int
  add_del_route_check (fib_protocol_t table_proto,
  		     u32 table_id,
  		     u32 next_hop_sw_if_index,
  		     dpo_proto_t next_hop_table_proto,
  		     u32 next_hop_table_id,
  		     u8 is_rpf_id, u32 * fib_index, u32 * next_hop_fib_index)
  {
    vnet_main_t *vnm = vnet_get_main ();
  
    *fib_index = fib_table_find (table_proto, ntohl (table_id));
    if (~0 == *fib_index)
      {
        /* No such VRF, and we weren't asked to create one */
        return VNET_API_ERROR_NO_SUCH_FIB;
      }
  
    if (!is_rpf_id && ~0 != ntohl (next_hop_sw_if_index))
      {
        if (pool_is_free_index (vnm->interface_main.sw_interfaces,
  			      ntohl (next_hop_sw_if_index)))
  	{
  	  return VNET_API_ERROR_NO_MATCHING_INTERFACE;
  	}
      }
    else
      {
        fib_protocol_t fib_nh_proto;
  
        if (next_hop_table_proto > DPO_PROTO_MPLS)
  	return (0);
  
        fib_nh_proto = dpo_proto_to_fib (next_hop_table_proto);
  
        if (is_rpf_id)
  	*next_hop_fib_index = mfib_table_find (fib_nh_proto,
  					       ntohl (next_hop_table_id));
        else
  	*next_hop_fib_index = fib_table_find (fib_nh_proto,
  					      ntohl (next_hop_table_id));
  
        if (~0 == *next_hop_fib_index)
  	{
  	  /* No such VRF, and we weren't asked to create one */
  	  return VNET_API_ERROR_NO_SUCH_FIB;
  	}
      }
  
    return (0);
  }
  
  static int
  ip4_add_del_route_t_handler (vl_api_ip_add_del_route_t * mp,
  			     u32 * stats_index)
  {
    u32 fib_index, next_hop_fib_index;
    fib_mpls_label_t *label_stack = NULL;
    int rv, ii, n_labels;;
  
    rv = add_del_route_check (FIB_PROTOCOL_IP4,
  			    mp->table_id,
  			    mp->next_hop_sw_if_index,
  			    DPO_PROTO_IP4,
  			    mp->next_hop_table_id,
  			    0, &fib_index, &next_hop_fib_index);
  
    if (0 != rv)
      return (rv);
  
    fib_prefix_t pfx = {
      .fp_len = mp->dst_address_length,
      .fp_proto = FIB_PROTOCOL_IP4,
    };
    clib_memcpy (&pfx.fp_addr.ip4, mp->dst_address, sizeof (pfx.fp_addr.ip4));
  
    ip46_address_t nh;
    clib_memset (&nh, 0, sizeof (nh));
    memcpy (&nh.ip4, mp->next_hop_address, sizeof (nh.ip4));
  
    n_labels = mp->next_hop_n_out_labels;
    if (n_labels == 0)
      ;
    else
      {
        vec_validate (label_stack, n_labels - 1);
        for (ii = 0; ii < n_labels; ii++)
  	{
  	  label_stack[ii].fml_value =
  	    ntohl (mp->next_hop_out_label_stack[ii].label);
  	  label_stack[ii].fml_ttl = mp->next_hop_out_label_stack[ii].ttl;
  	  label_stack[ii].fml_exp = mp->next_hop_out_label_stack[ii].exp;
  	  label_stack[ii].fml_mode =
  	    (mp->next_hop_out_label_stack[ii].is_uniform ?
  	     FIB_MPLS_LSP_MODE_UNIFORM : FIB_MPLS_LSP_MODE_PIPE);
  	}
      }
  
    rv = add_del_route_t_handler (mp->is_multipath,
  				mp->is_add,
  				mp->is_drop,
  				mp->is_unreach,
  				mp->is_prohibit,
  				mp->is_local, 0,
  				mp->is_classify,
  				mp->classify_table_index,
  				mp->is_resolve_host,
  				mp->is_resolve_attached, 0, 0,
  				mp->is_dvr,
  				mp->is_source_lookup,
  				mp->is_udp_encap,
  				fib_index, &pfx, DPO_PROTO_IP4,
  				&nh,
  				ntohl (mp->next_hop_id),
  				ntohl (mp->next_hop_sw_if_index),
  				next_hop_fib_index,
  				mp->next_hop_weight,
  				mp->next_hop_preference,
  				ntohl (mp->next_hop_via_label), label_stack);
  
    if (mp->is_add && 0 == rv)
      *stats_index = fib_table_entry_get_stats_index (fib_index, &pfx);
  
    return (rv);
  }
  
  static int
  ip6_add_del_route_t_handler (vl_api_ip_add_del_route_t * mp,
  			     u32 * stats_index)
  {
    fib_mpls_label_t *label_stack = NULL;
    u32 fib_index, next_hop_fib_index;
    int rv, ii, n_labels;;
  
    rv = add_del_route_check (FIB_PROTOCOL_IP6,
  			    mp->table_id,
  			    mp->next_hop_sw_if_index,
  			    DPO_PROTO_IP6,
  			    mp->next_hop_table_id,
  			    0, &fib_index, &next_hop_fib_index);
  
    if (0 != rv)
      return (rv);
  
    fib_prefix_t pfx = {
      .fp_len = mp->dst_address_length,
      .fp_proto = FIB_PROTOCOL_IP6,
    };
    clib_memcpy (&pfx.fp_addr.ip6, mp->dst_address, sizeof (pfx.fp_addr.ip6));
  
    ip46_address_t nh;
    clib_memset (&nh, 0, sizeof (nh));
    memcpy (&nh.ip6, mp->next_hop_address, sizeof (nh.ip6));
  
    n_labels = mp->next_hop_n_out_labels;
    if (n_labels == 0)
      ;
    else
      {
        vec_validate (label_stack, n_labels - 1);
        for (ii = 0; ii < n_labels; ii++)
  	{
  	  label_stack[ii].fml_value =
  	    ntohl (mp->next_hop_out_label_stack[ii].label);
  	  label_stack[ii].fml_ttl = mp->next_hop_out_label_stack[ii].ttl;
  	  label_stack[ii].fml_exp = mp->next_hop_out_label_stack[ii].exp;
  	  label_stack[ii].fml_mode =
  	    (mp->next_hop_out_label_stack[ii].is_uniform ?
  	     FIB_MPLS_LSP_MODE_UNIFORM : FIB_MPLS_LSP_MODE_PIPE);
  	}
      }
  
    rv = add_del_route_t_handler (mp->is_multipath,
  				mp->is_add,
  				mp->is_drop,
  				mp->is_unreach,
  				mp->is_prohibit,
  				mp->is_local, 0,
  				mp->is_classify,
  				mp->classify_table_index,
  				mp->is_resolve_host,
  				mp->is_resolve_attached, 0, 0,
  				mp->is_dvr,
  				mp->is_source_lookup,
  				mp->is_udp_encap,
  				fib_index, &pfx, DPO_PROTO_IP6,
  				&nh, ntohl (mp->next_hop_id),
  				ntohl (mp->next_hop_sw_if_index),
  				next_hop_fib_index,
  				mp->next_hop_weight,
  				mp->next_hop_preference,
  				ntohl (mp->next_hop_via_label), label_stack);
  
    if (mp->is_add && 0 == rv)
      *stats_index = fib_table_entry_get_stats_index (fib_index, &pfx);
  
    return (rv);
  }
  
  void
  vl_api_ip_add_del_route_t_handler (vl_api_ip_add_del_route_t * mp)
  {
    vl_api_ip_add_del_route_reply_t *rmp;
    u32 stats_index;
    int rv;
    vnet_main_t *vnm = vnet_get_main ();
  
    vnm->api_errno = 0;
    stats_index = ~0;
  
    if (mp->is_ipv6)
      rv = ip6_add_del_route_t_handler (mp, &stats_index);
    else
      rv = ip4_add_del_route_t_handler (mp, &stats_index);
  
    rv = (rv == 0) ? vnm->api_errno : rv;
  
    /* *INDENT-OFF* */
    REPLY_MACRO2 (VL_API_IP_ADD_DEL_ROUTE_REPLY,
    ({
      rmp->stats_index = htonl (stats_index);
    }))
    /* *INDENT-ON* */
  }
  
  void
  ip_table_create (fib_protocol_t fproto,
  		 u32 table_id, u8 is_api, const u8 * name)
  {
    u32 fib_index, mfib_index;
  
    /*
     * ignore action on the default table - this is always present
     * and cannot be added nor deleted from the API
     */
    if (0 != table_id)
      {
        /*
         * The API holds only one lock on the table.
         * i.e. it can be added many times via the API but needs to be
         * deleted only once.
         * The FIB index for unicast and multicast is not necessarily the
         * same, since internal VPP systesm (like LISP and SR) create
         * their own unicast tables.
         */
        fib_index = fib_table_find (fproto, table_id);
        mfib_index = mfib_table_find (fproto, table_id);
  
        if (~0 == fib_index)
  	{
  	  fib_table_find_or_create_and_lock_w_name (fproto, table_id,
  						    (is_api ?
  						     FIB_SOURCE_API :
  						     FIB_SOURCE_CLI), name);
  	}
        if (~0 == mfib_index)
  	{
  	  mfib_table_find_or_create_and_lock_w_name (fproto, table_id,
  						     (is_api ?
  						      MFIB_SOURCE_API :
  						      MFIB_SOURCE_CLI), name);
  	}
      }
  }
  
  static int
  add_del_mroute_check (fib_protocol_t table_proto,
  		      u32 table_id,
  		      u32 next_hop_sw_if_index, u8 is_local, u32 * fib_index)
  {
    vnet_main_t *vnm = vnet_get_main ();
  
    *fib_index = mfib_table_find (table_proto, ntohl (table_id));
    if (~0 == *fib_index)
      {
        /* No such table */
        return VNET_API_ERROR_NO_SUCH_FIB;
      }
  
    if (~0 != ntohl (next_hop_sw_if_index))
      {
        if (pool_is_free_index (vnm->interface_main.sw_interfaces,
  			      ntohl (next_hop_sw_if_index)))
  	{
  	  return VNET_API_ERROR_NO_MATCHING_INTERFACE;
  	}
      }
  
    return (0);
  }
  
  static fib_node_index_t
  mroute_add_del_handler (u8 is_add,
  			u8 is_local,
  			u32 fib_index,
  			const mfib_prefix_t * prefix,
  			dpo_proto_t nh_proto,
  			u32 entry_flags,
  			fib_rpf_id_t rpf_id,
  			u32 next_hop_sw_if_index,
  			ip46_address_t * nh, u32 itf_flags, u32 bier_imp)
  {
    fib_node_index_t mfib_entry_index = ~0;
  
    stats_dslock_with_hint (1 /* release hint */ , 2 /* tag */ );
  
    fib_route_path_t path = {
      .frp_sw_if_index = next_hop_sw_if_index,
      .frp_proto = nh_proto,
      .frp_addr = *nh,
    };
  
    if (is_local)
      path.frp_flags |= FIB_ROUTE_PATH_LOCAL;
  
    if (DPO_PROTO_BIER == nh_proto)
      {
        path.frp_bier_imp = bier_imp;
        path.frp_flags = FIB_ROUTE_PATH_BIER_IMP;
      }
    else if (!is_local && ~0 == next_hop_sw_if_index)
      {
        mfib_entry_index = mfib_table_entry_update (fib_index, prefix,
  						  MFIB_SOURCE_API,
  						  rpf_id, entry_flags);
        goto done;
      }
  
    if (is_add)
      {
        mfib_entry_index = mfib_table_entry_path_update (fib_index, prefix,
  						       MFIB_SOURCE_API,
  						       &path, itf_flags);
      }
    else
      {
        mfib_table_entry_path_remove (fib_index, prefix,
  				    MFIB_SOURCE_API, &path);
      }
  
  done:
    stats_dsunlock ();
    return (mfib_entry_index);
  }
  
  static int
  api_mroute_add_del_t_handler (vl_api_ip_mroute_add_del_t * mp,
  			      u32 * stats_index)
  {
    fib_node_index_t mfib_entry_index;
    fib_protocol_t fproto;
    dpo_proto_t nh_proto;
    ip46_address_t nh;
    u32 fib_index;
    int rv;
  
    nh_proto = mp->next_hop_afi;
    fproto = (mp->is_ipv6 ? FIB_PROTOCOL_IP6 : FIB_PROTOCOL_IP4);
    rv = add_del_mroute_check (fproto,
  			     mp->table_id,
  			     mp->next_hop_sw_if_index,
  			     mp->is_local, &fib_index);
  
    if (0 != rv)
      return (rv);
  
    mfib_prefix_t pfx = {
      .fp_len = ntohs (mp->grp_address_length),
      .fp_proto = fproto,
    };
  
    if (FIB_PROTOCOL_IP4 == fproto)
      {
        clib_memcpy (&pfx.fp_grp_addr.ip4, mp->grp_address,
  		   sizeof (pfx.fp_grp_addr.ip4));
        clib_memcpy (&pfx.fp_src_addr.ip4, mp->src_address,
  		   sizeof (pfx.fp_src_addr.ip4));
        clib_memset (&nh.ip6, 0, sizeof (nh.ip6));
        clib_memcpy (&nh.ip4, mp->nh_address, sizeof (nh.ip4));
        if (!ip46_address_is_zero (&pfx.fp_src_addr))
  	pfx.fp_len = 64;
      }
    else
      {
        clib_memcpy (&pfx.fp_grp_addr.ip6, mp->grp_address,
  		   sizeof (pfx.fp_grp_addr.ip6));
        clib_memcpy (&pfx.fp_src_addr.ip6, mp->src_address,
  		   sizeof (pfx.fp_src_addr.ip6));
        clib_memcpy (&nh.ip6, mp->nh_address, sizeof (nh.ip6));
        if (!ip46_address_is_zero (&pfx.fp_src_addr))
  	pfx.fp_len = 256;
      }
  
    mfib_entry_index = mroute_add_del_handler (mp->is_add,
  					     mp->is_local,
  					     fib_index, &pfx,
  					     nh_proto,
  					     ntohl (mp->entry_flags),
  					     ntohl (mp->rpf_id),
  					     ntohl (mp->next_hop_sw_if_index),
  					     &nh,
  					     ntohl (mp->itf_flags),
  					     ntohl (mp->bier_imp));
  
    if (~0 != mfib_entry_index)
      *stats_index = mfib_entry_get_stats_index (mfib_entry_index);
  
    return (rv);
  }
  
  void
  vl_api_ip_mroute_add_del_t_handler (vl_api_ip_mroute_add_del_t * mp)
  {
    vl_api_ip_mroute_add_del_reply_t *rmp;
    vnet_main_t *vnm;
    u32 stats_index;
    int rv;
  
    vnm = vnet_get_main ();
    vnm->api_errno = 0;
    stats_index = ~0;
  
    rv = api_mroute_add_del_t_handler (mp, &stats_index);
  
    /* *INDENT-OFF* */
    REPLY_MACRO2 (VL_API_IP_MROUTE_ADD_DEL_REPLY,
    ({
      rmp->stats_index = htonl (stats_index);
    }));
    /* *INDENT-ON* */
  }
  
  static void
  send_ip_details (vpe_api_main_t * am,
  		 vl_api_registration_t * reg, u32 sw_if_index, u8 is_ipv6,
  		 u32 context)
  {
    vl_api_ip_details_t *mp;
  
    mp = vl_msg_api_alloc (sizeof (*mp));
    clib_memset (mp, 0, sizeof (*mp));
    mp->_vl_msg_id = ntohs (VL_API_IP_DETAILS);
  
    mp->sw_if_index = ntohl (sw_if_index);
    mp->is_ipv6 = is_ipv6;
    mp->context = context;
  
    vl_api_send_msg (reg, (u8 *) mp);
  }
  
  static void
  send_ip_address_details (vpe_api_main_t * am,
  			 vl_api_registration_t * reg,
  			 u8 * ip, u16 prefix_length,
  			 u32 sw_if_index, u8 is_ipv6, u32 context)
  {
    vl_api_ip_address_details_t *mp;
  
    mp = vl_msg_api_alloc (sizeof (*mp));
    clib_memset (mp, 0, sizeof (*mp));
    mp->_vl_msg_id = ntohs (VL_API_IP_ADDRESS_DETAILS);
  
    if (is_ipv6)
      {
        clib_memcpy (&mp->ip, ip, sizeof (mp->ip));
      }
    else
      {
        u32 *tp = (u32 *) mp->ip;
        *tp = *(u32 *) ip;
      }
    mp->prefix_length = prefix_length;
    mp->context = context;
    mp->sw_if_index = htonl (sw_if_index);
    mp->is_ipv6 = is_ipv6;
  
    vl_api_send_msg (reg, (u8 *) mp);
  }
  
  static void
  vl_api_ip_address_dump_t_handler (vl_api_ip_address_dump_t * mp)
  {
    vpe_api_main_t *am = &vpe_api_main;
    vl_api_registration_t *reg;
    ip6_address_t *r6;
    ip4_address_t *r4;
    ip6_main_t *im6 = &ip6_main;
    ip4_main_t *im4 = &ip4_main;
    ip_lookup_main_t *lm6 = &im6->lookup_main;
    ip_lookup_main_t *lm4 = &im4->lookup_main;
    ip_interface_address_t *ia = 0;
    u32 sw_if_index = ~0;
    int rv __attribute__ ((unused)) = 0;
  
    VALIDATE_SW_IF_INDEX (mp);
  
    sw_if_index = ntohl (mp->sw_if_index);
  
    reg = vl_api_client_index_to_registration (mp->client_index);
    if (!reg)
      return;
  
    if (mp->is_ipv6)
      {
        /* *INDENT-OFF* */
        /* Do not send subnet details of the IP-interface for
         * unnumbered interfaces. otherwise listening clients
         * will be confused that the subnet is applied on more
         * than one interface */
        foreach_ip_interface_address (lm6, ia, sw_if_index, 0,
        ({
          r6 = ip_interface_address_get_address (lm6, ia);
          u16 prefix_length = ia->address_length;
          send_ip_address_details(am, reg, (u8*)r6, prefix_length,
  				sw_if_index, 1, mp->context);
        }));
        /* *INDENT-ON* */
      }
    else
      {
        /* *INDENT-OFF* */
        foreach_ip_interface_address (lm4, ia, sw_if_index, 0,
        ({
          r4 = ip_interface_address_get_address (lm4, ia);
          u16 prefix_length = ia->address_length;
          send_ip_address_details(am, reg, (u8*)r4, prefix_length,
  				sw_if_index, 0, mp->context);
        }));
        /* *INDENT-ON* */
      }
  
    BAD_SW_IF_INDEX_LABEL;
  }
  
  static void
  send_ip_unnumbered_details (vpe_api_main_t * am,
  			    vl_api_registration_t * reg,
  			    u32 sw_if_index, u32 ip_sw_if_index, u32 context)
  {
    vl_api_ip_unnumbered_details_t *mp;
  
    mp = vl_msg_api_alloc (sizeof (*mp));
    clib_memset (mp, 0, sizeof (*mp));
    mp->_vl_msg_id = ntohs (VL_API_IP_UNNUMBERED_DETAILS);
  
    mp->context = context;
    mp->sw_if_index = htonl (sw_if_index);
    mp->ip_sw_if_index = htonl (ip_sw_if_index);
  
    vl_api_send_msg (reg, (u8 *) mp);
  }
  
  static void
  vl_api_ip_unnumbered_dump_t_handler (vl_api_ip_unnumbered_dump_t * mp)
  {
    vnet_main_t *vnm = vnet_get_main ();
    vnet_interface_main_t *im = &vnm->interface_main;
    int rv __attribute__ ((unused)) = 0;
    vpe_api_main_t *am = &vpe_api_main;
    vl_api_registration_t *reg;
    vnet_sw_interface_t *si;
    u32 sw_if_index;
  
    sw_if_index = ntohl (mp->sw_if_index);
  
    reg = vl_api_client_index_to_registration (mp->client_index);
    if (!reg)
      return;
  
    if (~0 != sw_if_index)
      {
        VALIDATE_SW_IF_INDEX (mp);
  
        si = vnet_get_sw_interface (vnm, ntohl (mp->sw_if_index));
  
        if (!(si->flags & VNET_SW_INTERFACE_FLAG_UNNUMBERED))
  	{
  	  send_ip_unnumbered_details (am, reg,
  				      sw_if_index,
  				      si->unnumbered_sw_if_index,
  				      mp->context);
  	}
      }
    else
      {
        /* *INDENT-OFF* */
        pool_foreach (si, im->sw_interfaces,
        ({
          if ((si->flags & VNET_SW_INTERFACE_FLAG_UNNUMBERED))
            {
              send_ip_unnumbered_details(am, reg,
                                         si->sw_if_index,
                                         si->unnumbered_sw_if_index,
                                         mp->context);
            }
        }));
        /* *INDENT-ON* */
      }
  
    BAD_SW_IF_INDEX_LABEL;
  }
  
  static void
  vl_api_ip_dump_t_handler (vl_api_ip_dump_t * mp)
  {
    vpe_api_main_t *am = &vpe_api_main;
    vnet_main_t *vnm = vnet_get_main ();
    vlib_main_t *vm = vlib_get_main ();
    vnet_interface_main_t *im = &vnm->interface_main;
    vl_api_registration_t *reg;
    vnet_sw_interface_t *si, *sorted_sis;
    u32 sw_if_index = ~0;
  
    reg = vl_api_client_index_to_registration (mp->client_index);
    if (!reg)
      return;
  
    /* Gather interfaces. */
    sorted_sis = vec_new (vnet_sw_interface_t, pool_elts (im->sw_interfaces));
    _vec_len (sorted_sis) = 0;
    /* *INDENT-OFF* */
    pool_foreach (si, im->sw_interfaces,
    ({
      vec_add1 (sorted_sis, si[0]);
    }));
    /* *INDENT-ON* */
  
    vec_foreach (si, sorted_sis)
    {
      if (!(si->flags & VNET_SW_INTERFACE_FLAG_UNNUMBERED))
        {
  	if (mp->is_ipv6 && !ip6_interface_enabled (vm, si->sw_if_index))
  	  {
  	    continue;
  	  }
  	sw_if_index = si->sw_if_index;
  	send_ip_details (am, reg, sw_if_index, mp->is_ipv6, mp->context);
        }
    }
  }
  
  static void
  set_ip6_flow_hash (vl_api_set_ip_flow_hash_t * mp)
  {
    vl_api_set_ip_flow_hash_reply_t *rmp;
    int rv;
    u32 table_id;
    flow_hash_config_t flow_hash_config = 0;
  
    table_id = ntohl (mp->vrf_id);
  
  #define _(a,b) if (mp->a) flow_hash_config |= b;
    foreach_flow_hash_bit;
  #undef _
  
    rv = vnet_set_ip6_flow_hash (table_id, flow_hash_config);
  
    REPLY_MACRO (VL_API_SET_IP_FLOW_HASH_REPLY);
  }
  
  static void
  set_ip4_flow_hash (vl_api_set_ip_flow_hash_t * mp)
  {
    vl_api_set_ip_flow_hash_reply_t *rmp;
    int rv;
    u32 table_id;
    flow_hash_config_t flow_hash_config = 0;
  
    table_id = ntohl (mp->vrf_id);
  
  #define _(a,b) if (mp->a) flow_hash_config |= b;
    foreach_flow_hash_bit;
  #undef _
  
    rv = vnet_set_ip4_flow_hash (table_id, flow_hash_config);
  
    REPLY_MACRO (VL_API_SET_IP_FLOW_HASH_REPLY);
  }
  
  
  static void
  vl_api_set_ip_flow_hash_t_handler (vl_api_set_ip_flow_hash_t * mp)
  {
    if (mp->is_ipv6 == 0)
      set_ip4_flow_hash (mp);
    else
      set_ip6_flow_hash (mp);
  }
  
  static void
    vl_api_sw_interface_ip6nd_ra_config_t_handler
    (vl_api_sw_interface_ip6nd_ra_config_t * mp)
  {
    vl_api_sw_interface_ip6nd_ra_config_reply_t *rmp;
    vlib_main_t *vm = vlib_get_main ();
    int rv = 0;
    u8 is_no, suppress, managed, other, ll_option, send_unicast, cease,
      default_router;
  
    is_no = mp->is_no == 1;
    suppress = mp->suppress == 1;
    managed = mp->managed == 1;
    other = mp->other == 1;
    ll_option = mp->ll_option == 1;
    send_unicast = mp->send_unicast == 1;
    cease = mp->cease == 1;
    default_router = mp->default_router == 1;
  
    VALIDATE_SW_IF_INDEX (mp);
  
    rv = ip6_neighbor_ra_config (vm, ntohl (mp->sw_if_index),
  			       suppress, managed, other,
  			       ll_option, send_unicast, cease,
  			       default_router, ntohl (mp->lifetime),
  			       ntohl (mp->initial_count),
  			       ntohl (mp->initial_interval),
  			       ntohl (mp->max_interval),
  			       ntohl (mp->min_interval), is_no);
  
    BAD_SW_IF_INDEX_LABEL;
  
    REPLY_MACRO (VL_API_SW_INTERFACE_IP6ND_RA_CONFIG_REPLY);
  }
  
  static void
    vl_api_sw_interface_ip6nd_ra_prefix_t_handler
    (vl_api_sw_interface_ip6nd_ra_prefix_t * mp)
  {
    vlib_main_t *vm = vlib_get_main ();
    vl_api_sw_interface_ip6nd_ra_prefix_reply_t *rmp;
    int rv = 0;
    u8 is_no, use_default, no_advertise, off_link, no_autoconfig, no_onlink;
  
    VALIDATE_SW_IF_INDEX (mp);
  
    is_no = mp->is_no == 1;
    use_default = mp->use_default == 1;
    no_advertise = mp->no_advertise == 1;
    off_link = mp->off_link == 1;
    no_autoconfig = mp->no_autoconfig == 1;
    no_onlink = mp->no_onlink == 1;
  
    rv = ip6_neighbor_ra_prefix (vm, ntohl (mp->sw_if_index),
  			       (ip6_address_t *) mp->address,
  			       mp->address_length, use_default,
  			       ntohl (mp->val_lifetime),
  			       ntohl (mp->pref_lifetime), no_advertise,
  			       off_link, no_autoconfig, no_onlink, is_no);
  
    BAD_SW_IF_INDEX_LABEL;
    REPLY_MACRO (VL_API_SW_INTERFACE_IP6ND_RA_PREFIX_REPLY);
  }
  
  static void
  send_ip6nd_proxy_details (vl_api_registration_t * reg,
  			  u32 context,
  			  const ip46_address_t * addr, u32 sw_if_index)
  {
    vl_api_ip6nd_proxy_details_t *mp;
  
    mp = vl_msg_api_alloc (sizeof (*mp));
    clib_memset (mp, 0, sizeof (*mp));
    mp->_vl_msg_id = ntohs (VL_API_IP6ND_PROXY_DETAILS);
    mp->context = context;
    mp->sw_if_index = htonl (sw_if_index);
    memcpy (mp->address, addr, 16);
  
    vl_api_send_msg (reg, (u8 *) mp);
  }
  
  typedef struct api_ip6nd_proxy_fib_table_walk_ctx_t_
  {
    u32 *indices;
  } api_ip6nd_proxy_fib_table_walk_ctx_t;
  
  static fib_table_walk_rc_t
  api_ip6nd_proxy_fib_table_walk (fib_node_index_t fei, void *arg)
  {
    api_ip6nd_proxy_fib_table_walk_ctx_t *ctx = arg;
  
    if (fib_entry_is_sourced (fei, FIB_SOURCE_IP6_ND_PROXY))
      {
        vec_add1 (ctx->indices, fei);
      }
  
    return (FIB_TABLE_WALK_CONTINUE);
  }
  
  static void
  vl_api_ip6nd_proxy_dump_t_handler (vl_api_ip6nd_proxy_dump_t * mp)
  {
    ip6_main_t *im6 = &ip6_main;
    fib_table_t *fib_table;
    api_ip6nd_proxy_fib_table_walk_ctx_t ctx = {
      .indices = NULL,
    };
    fib_node_index_t *feip;
    const fib_prefix_t *pfx;
    vl_api_registration_t *reg;
  
    reg = vl_api_client_index_to_registration (mp->client_index);
    if (!reg)
      return;
  
    /* *INDENT-OFF* */
    pool_foreach (fib_table, im6->fibs,
    ({
      fib_table_walk(fib_table->ft_index,
                     FIB_PROTOCOL_IP6,
                     api_ip6nd_proxy_fib_table_walk,
                     &ctx);
    }));
    /* *INDENT-ON* */
  
    vec_sort_with_function (ctx.indices, fib_entry_cmp_for_sort);
  
    vec_foreach (feip, ctx.indices)
    {
      pfx = fib_entry_get_prefix (*feip);
  
      send_ip6nd_proxy_details (reg,
  			      mp->context,
  			      &pfx->fp_addr,
  			      fib_entry_get_resolving_interface (*feip));
    }
  
    vec_free (ctx.indices);
  }
  
  static void
  vl_api_ip6nd_proxy_add_del_t_handler (vl_api_ip6nd_proxy_add_del_t * mp)
  {
    vl_api_ip6nd_proxy_add_del_reply_t *rmp;
    int rv = 0;
  
    VALIDATE_SW_IF_INDEX (mp);
  
    rv = ip6_neighbor_proxy_add_del (ntohl (mp->sw_if_index),
  				   (ip6_address_t *) mp->address, mp->is_del);
  
    BAD_SW_IF_INDEX_LABEL;
    REPLY_MACRO (VL_API_IP6ND_PROXY_ADD_DEL_REPLY);
  }
  
  static void
    vl_api_ip6nd_send_router_solicitation_t_handler
    (vl_api_ip6nd_send_router_solicitation_t * mp)
  {
    vl_api_ip6nd_send_router_solicitation_reply_t *rmp;
    icmp6_send_router_solicitation_params_t params;
    vlib_main_t *vm = vlib_get_main ();
    int rv = 0;
  
    VALIDATE_SW_IF_INDEX (mp);
  
    BAD_SW_IF_INDEX_LABEL;
    REPLY_MACRO (VL_API_IP6ND_SEND_ROUTER_SOLICITATION_REPLY);
  
    if (rv != 0)
      return;
  
    params.irt = ntohl (mp->irt);
    params.mrt = ntohl (mp->mrt);
    params.mrc = ntohl (mp->mrc);
    params.mrd = ntohl (mp->mrd);
  
    icmp6_send_router_solicitation (vm, ntohl (mp->sw_if_index), mp->stop,
  				  &params);
  }
  
  static void
    vl_api_sw_interface_ip6_enable_disable_t_handler
    (vl_api_sw_interface_ip6_enable_disable_t * mp)
  {
    vlib_main_t *vm = vlib_get_main ();
    vl_api_sw_interface_ip6_enable_disable_reply_t *rmp;
    vnet_main_t *vnm = vnet_get_main ();
    int rv = 0;
    clib_error_t *error;
  
    vnm->api_errno = 0;
  
    VALIDATE_SW_IF_INDEX (mp);
  
    error =
      (mp->enable == 1) ? enable_ip6_interface (vm,
  					      ntohl (mp->sw_if_index)) :
      disable_ip6_interface (vm, ntohl (mp->sw_if_index));
  
    if (error)
      {
        clib_error_report (error);
        rv = VNET_API_ERROR_UNSPECIFIED;
      }
    else
      {
        rv = vnm->api_errno;
      }
  
    BAD_SW_IF_INDEX_LABEL;
  
    REPLY_MACRO (VL_API_SW_INTERFACE_IP6_ENABLE_DISABLE_REPLY);
  }
  
  void
  vl_mfib_signal_send_one (vl_api_registration_t * reg,
  			 u32 context, const mfib_signal_t * mfs)
  {
    vl_api_mfib_signal_details_t *mp;
    mfib_prefix_t prefix;
    mfib_table_t *mfib;
    mfib_itf_t *mfi;
  
    mp = vl_msg_api_alloc (sizeof (*mp));
  
    clib_memset (mp, 0, sizeof (*mp));
    mp->_vl_msg_id = ntohs (VL_API_MFIB_SIGNAL_DETAILS);
    mp->context = context;
  
    mfi = mfib_itf_get (mfs->mfs_itf);
    mfib_entry_get_prefix (mfs->mfs_entry, &prefix);
    mfib = mfib_table_get (mfib_entry_get_fib_index (mfs->mfs_entry),
  			 prefix.fp_proto);
    mp->table_id = ntohl (mfib->mft_table_id);
    mp->sw_if_index = ntohl (mfi->mfi_sw_if_index);
  
    if (FIB_PROTOCOL_IP4 == prefix.fp_proto)
      {
        mp->grp_address_len = ntohs (prefix.fp_len);
  
        memcpy (mp->grp_address, &prefix.fp_grp_addr.ip4, 4);
        if (prefix.fp_len > 32)
  	{
  	  memcpy (mp->src_address, &prefix.fp_src_addr.ip4, 4);
  	}
      }
    else
      {
        mp->grp_address_len = ntohs (prefix.fp_len);
  
        ASSERT (0);
      }
  
    if (0 != mfs->mfs_buffer_len)
      {
        mp->ip_packet_len = ntohs (mfs->mfs_buffer_len);
  
        memcpy (mp->ip_packet_data, mfs->mfs_buffer, mfs->mfs_buffer_len);
      }
    else
      {
        mp->ip_packet_len = 0;
      }
  
    vl_api_send_msg (reg, (u8 *) mp);
  }
  
  static void
  vl_api_mfib_signal_dump_t_handler (vl_api_mfib_signal_dump_t * mp)
  {
    vl_api_registration_t *reg;
  
    reg = vl_api_client_index_to_registration (mp->client_index);
    if (!reg)
      return;
  
    while (vl_api_can_send_msg (reg) && mfib_signal_send_one (reg, mp->context))
      ;
  }
  
  static void
    vl_api_ip_container_proxy_add_del_t_handler
    (vl_api_ip_container_proxy_add_del_t * mp)
  {
    vl_api_ip_container_proxy_add_del_reply_t *rmp;
    vnet_ip_container_proxy_args_t args;
    int rv = 0;
    clib_error_t *error;
  
    clib_memset (&args, 0, sizeof (args));
    ip_set (&args.prefix.fp_addr, mp->ip, mp->is_ip4);
    args.prefix.fp_len = mp->plen ? mp->plen : (mp->is_ip4 ? 32 : 128);
    args.sw_if_index = clib_net_to_host_u32 (mp->sw_if_index);
    args.is_add = mp->is_add;
    if ((error = vnet_ip_container_proxy_add_del (&args)))
      {
        rv = clib_error_get_code (error);
        clib_error_report (error);
      }
  
    REPLY_MACRO (VL_API_IP_CONTAINER_PROXY_ADD_DEL_REPLY);
  }
  
  typedef struct ip_container_proxy_walk_ctx_t_
  {
    vl_api_registration_t *reg;
    u32 context;
  } ip_container_proxy_walk_ctx_t;
  
  static int
  ip_container_proxy_send_details (const fib_prefix_t * pfx, u32 sw_if_index,
  				 void *args)
  {
    vl_api_ip_container_proxy_details_t *mp;
    ip_container_proxy_walk_ctx_t *ctx = args;
  
    mp = vl_msg_api_alloc (sizeof (*mp));
    if (!mp)
      return 1;
  
    clib_memset (mp, 0, sizeof (*mp));
    mp->_vl_msg_id = ntohs (VL_API_IP_CONTAINER_PROXY_DETAILS);
    mp->context = ctx->context;
  
    mp->sw_if_index = ntohl (sw_if_index);
    ip_prefix_encode (pfx, &mp->prefix);
  
    vl_api_send_msg (ctx->reg, (u8 *) mp);
  
    return 1;
  }
  
  static void
  vl_api_ip_container_proxy_dump_t_handler (vl_api_ip_container_proxy_dump_t *
  					  mp)
  {
    vl_api_registration_t *reg;
  
    reg = vl_api_client_index_to_registration (mp->client_index);
    if (!reg)
      return;
  
    ip_container_proxy_walk_ctx_t ctx = {
      .context = mp->context,
      .reg = reg,
    };
  
    ip_container_proxy_walk (ip_container_proxy_send_details, &ctx);
  }
  
  static void
  vl_api_ioam_enable_t_handler (vl_api_ioam_enable_t * mp)
  {
    int rv = 0;
    vl_api_ioam_enable_reply_t *rmp;
    clib_error_t *error;
  
    /* Ignoring the profile id as currently a single profile
     * is supported */
    error = ip6_ioam_enable (mp->trace_enable, mp->pot_enable,
  			   mp->seqno, mp->analyse);
    if (error)
      {
        clib_error_report (error);
        rv = clib_error_get_code (error);
      }
  
    REPLY_MACRO (VL_API_IOAM_ENABLE_REPLY);
  }
  
  static void
  vl_api_ioam_disable_t_handler (vl_api_ioam_disable_t * mp)
  {
    int rv = 0;
    vl_api_ioam_disable_reply_t *rmp;
    clib_error_t *error;
  
    error = clear_ioam_rewrite_fn ();
    if (error)
      {
        clib_error_report (error);
        rv = clib_error_get_code (error);
      }
  
    REPLY_MACRO (VL_API_IOAM_DISABLE_REPLY);
  }
  
  static void
    vl_api_ip_source_and_port_range_check_add_del_t_handler
    (vl_api_ip_source_and_port_range_check_add_del_t * mp)
  {
    vl_api_ip_source_and_port_range_check_add_del_reply_t *rmp;
    int rv = 0;
  
    u8 is_ipv6 = mp->is_ipv6;
    u8 is_add = mp->is_add;
    u8 mask_length = mp->mask_length;
    ip4_address_t ip4_addr;
    ip6_address_t ip6_addr;
    u16 *low_ports = 0;
    u16 *high_ports = 0;
    u32 vrf_id;
    u16 tmp_low, tmp_high;
    u8 num_ranges;
    int i;
  
    // Validate port range
    num_ranges = mp->number_of_ranges;
    if (num_ranges > 32)
      {				// This is size of array in VPE.API
        rv = VNET_API_ERROR_EXCEEDED_NUMBER_OF_RANGES_CAPACITY;
        goto reply;
      }
  
    vec_reset_length (low_ports);
    vec_reset_length (high_ports);
  
    for (i = 0; i < num_ranges; i++)
      {
        tmp_low = mp->low_ports[i];
        tmp_high = mp->high_ports[i];
        // If tmp_low <= tmp_high then only need to check tmp_low = 0
        // If tmp_low <= tmp_high then only need to check tmp_high > 65535
        if (tmp_low > tmp_high || tmp_low == 0 || tmp_high > 65535)
  	{
  	  rv = VNET_API_ERROR_INVALID_VALUE;
  	  goto reply;
  	}
        vec_add1 (low_ports, tmp_low);
        vec_add1 (high_ports, tmp_high + 1);
      }
  
    // Validate mask_length
    if ((is_ipv6 && mask_length > 128) || (!is_ipv6 && mask_length > 32))
      {
        rv = VNET_API_ERROR_ADDRESS_LENGTH_MISMATCH;
        goto reply;
      }
  
    vrf_id = ntohl (mp->vrf_id);
  
    if (vrf_id < 1)
      {
        rv = VNET_API_ERROR_INVALID_VALUE;
        goto reply;
      }
  
  
    if (is_ipv6)
      {
        clib_memcpy (ip6_addr.as_u8, mp->address, sizeof (ip6_addr.as_u8));
        rv = ip6_source_and_port_range_check_add_del (&ip6_addr,
  						    mask_length,
  						    vrf_id,
  						    low_ports,
  						    high_ports, is_add);
      }
    else
      {
        clib_memcpy (ip4_addr.data, mp->address, sizeof (ip4_addr));
        rv = ip4_source_and_port_range_check_add_del (&ip4_addr,
  						    mask_length,
  						    vrf_id,
  						    low_ports,
  						    high_ports, is_add);
      }
  
  reply:
    vec_free (low_ports);
    vec_free (high_ports);
    REPLY_MACRO (VL_API_IP_SOURCE_AND_PORT_RANGE_CHECK_ADD_DEL_REPLY);
  }
  
  static void
    vl_api_ip_source_and_port_range_check_interface_add_del_t_handler
    (vl_api_ip_source_and_port_range_check_interface_add_del_t * mp)
  {
    vlib_main_t *vm = vlib_get_main ();
    vl_api_ip_source_and_port_range_check_interface_add_del_reply_t *rmp;
    ip4_main_t *im = &ip4_main;
    int rv;
    u32 sw_if_index;
    u32 fib_index[IP_SOURCE_AND_PORT_RANGE_CHECK_N_PROTOCOLS];
    u32 vrf_id[IP_SOURCE_AND_PORT_RANGE_CHECK_N_PROTOCOLS];
    uword *p = 0;
    int i;
  
    vrf_id[IP_SOURCE_AND_PORT_RANGE_CHECK_PROTOCOL_TCP_OUT] =
      ntohl (mp->tcp_out_vrf_id);
    vrf_id[IP_SOURCE_AND_PORT_RANGE_CHECK_PROTOCOL_UDP_OUT] =
      ntohl (mp->udp_out_vrf_id);
    vrf_id[IP_SOURCE_AND_PORT_RANGE_CHECK_PROTOCOL_TCP_IN] =
      ntohl (mp->tcp_in_vrf_id);
    vrf_id[IP_SOURCE_AND_PORT_RANGE_CHECK_PROTOCOL_UDP_IN] =
      ntohl (mp->udp_in_vrf_id);
  
  
    for (i = 0; i < IP_SOURCE_AND_PORT_RANGE_CHECK_N_PROTOCOLS; i++)
      {
        if (vrf_id[i] != 0 && vrf_id[i] != ~0)
  	{
  	  p = hash_get (im->fib_index_by_table_id, vrf_id[i]);
  
  	  if (p == 0)
  	    {
  	      rv = VNET_API_ERROR_INVALID_VALUE;
  	      goto reply;
  	    }
  
  	  fib_index[i] = p[0];
  	}
        else
  	fib_index[i] = ~0;
      }
    sw_if_index = ntohl (mp->sw_if_index);
  
    VALIDATE_SW_IF_INDEX (mp);
  
    rv =
      set_ip_source_and_port_range_check (vm, fib_index, sw_if_index,
  					mp->is_add);
  
    BAD_SW_IF_INDEX_LABEL;
  reply:
  
    REPLY_MACRO (VL_API_IP_SOURCE_AND_PORT_RANGE_CHECK_INTERFACE_ADD_DEL_REPLY);
  }
  
  typedef union
  {
    u32 fib_index;
  } ip4_source_check_config_t;
  
  static void
    vl_api_ip_source_check_interface_add_del_t_handler
    (vl_api_ip_source_check_interface_add_del_t * mp)
  {
    vl_api_ip_source_check_interface_add_del_reply_t *rmp;
    int rv;
    u32 sw_if_index = ntohl (mp->sw_if_index);
    u8 is_add = mp->is_add;
    char *feature_name =
      mp->loose ? "ip4-source-check-via-any" : "ip4-source-check-via-rx";
  
    ip4_source_check_config_t config;
  
    VALIDATE_SW_IF_INDEX (mp);
  
    config.fib_index =
      fib_table_get_index_for_sw_if_index (FIB_PROTOCOL_IP4, sw_if_index);
    rv =
      vnet_feature_enable_disable ("ip4-unicast", feature_name, sw_if_index,
  				 is_add, &config, sizeof (config));
    BAD_SW_IF_INDEX_LABEL;
  
    REPLY_MACRO (VL_API_IP_SOURCE_CHECK_INTERFACE_ADD_DEL_REPLY);
  }
  
  #define IP4_ARP_EVENT 3
  #define IP6_ND_EVENT 4
  
  static int arp_change_delete_callback (u32 pool_index, u8 * notused);
  static int nd_change_delete_callback (u32 pool_index, u8 * notused);
  static vlib_node_registration_t ip_resolver_process_node;
  
  static void
  handle_ip4_arp_event (u32 pool_index)
  {
    vpe_api_main_t *vam = &vpe_api_main;
    vnet_main_t *vnm = vam->vnet_main;
    vlib_main_t *vm = vam->vlib_main;
    vl_api_ip4_arp_event_t *event;
    vl_api_ip4_arp_event_t *mp;
    vl_api_registration_t *reg;
  
    /* Client can cancel, die, etc. */
    if (pool_is_free_index (vam->arp_events, pool_index))
      return;
  
    event = pool_elt_at_index (vam->arp_events, pool_index);
  
    reg = vl_api_client_index_to_registration (event->client_index);
    if (!reg)
      {
        (void) vnet_add_del_ip4_arp_change_event
  	(vnm, arp_change_delete_callback,
  	 event->pid, &event->address,
  	 ip_resolver_process_node.index, IP4_ARP_EVENT,
  	 ~0 /* pool index, notused */ , 0 /* is_add */ );
        return;
      }
  
    if (vl_api_can_send_msg (reg))
      {
        mp = vl_msg_api_alloc (sizeof (*mp));
        clib_memcpy (mp, event, sizeof (*mp));
        vl_api_send_msg (reg, (u8 *) mp);
      }
    else
      {
        static f64 last_time;
        /*
         * Throttle syslog msgs.
         * It's pretty tempting to just revoke the registration...
         */
        if (vlib_time_now (vm) > last_time + 10.0)
  	{
  	  clib_warning ("arp event for %U to pid %d: queue stuffed!",
  			format_ip4_address, &event->address, event->pid);
  	  last_time = vlib_time_now (vm);
  	}
      }
  }
  
  static void
  handle_ip6_nd_event (u32 pool_index)
  {
    vpe_api_main_t *vam = &vpe_api_main;
    vnet_main_t *vnm = vam->vnet_main;
    vlib_main_t *vm = vam->vlib_main;
    vl_api_ip6_nd_event_t *event;
    vl_api_ip6_nd_event_t *mp;
    vl_api_registration_t *reg;
  
    /* Client can cancel, die, etc. */
    if (pool_is_free_index (vam->nd_events, pool_index))
      return;
  
    event = pool_elt_at_index (vam->nd_events, pool_index);
  
    reg = vl_api_client_index_to_registration (event->client_index);
    if (!reg)
      {
        (void) vnet_add_del_ip6_nd_change_event
  	(vnm, nd_change_delete_callback,
  	 event->pid, &event->address,
  	 ip_resolver_process_node.index, IP6_ND_EVENT,
  	 ~0 /* pool index, notused */ , 0 /* is_add */ );
        return;
      }
  
    if (vl_api_can_send_msg (reg))
      {
        mp = vl_msg_api_alloc (sizeof (*mp));
        clib_memcpy (mp, event, sizeof (*mp));
        vl_api_send_msg (reg, (u8 *) mp);
      }
    else
      {
        static f64 last_time;
        /*
         * Throttle syslog msgs.
         * It's pretty tempting to just revoke the registration...
         */
        if (vlib_time_now (vm) > last_time + 10.0)
  	{
  	  clib_warning ("ip6 nd event for %U to pid %d: queue stuffed!",
  			format_ip6_address, &event->address, event->pid);
  	  last_time = vlib_time_now (vm);
  	}
      }
  }
  
  static uword
  resolver_process (vlib_main_t * vm,
  		  vlib_node_runtime_t * rt, vlib_frame_t * f)
  {
    volatile f64 timeout = 100.0;
    volatile uword *event_data = 0;
  
    while (1)
      {
        vlib_process_wait_for_event_or_clock (vm, timeout);
  
        uword event_type =
  	vlib_process_get_events (vm, (uword **) & event_data);
  
        int i;
        switch (event_type)
  	{
  	case IP4_ARP_EVENT:
  	  for (i = 0; i < vec_len (event_data); i++)
  	    handle_ip4_arp_event (event_data[i]);
  	  break;
  
  	case IP6_ND_EVENT:
  	  for (i = 0; i < vec_len (event_data); i++)
  	    handle_ip6_nd_event (event_data[i]);
  	  break;
  
  	case ~0:		/* timeout */
  	  break;
  	}
  
        vec_reset_length (event_data);
      }
    return 0;			/* or not */
  }
  
  /* *INDENT-OFF* */
  VLIB_REGISTER_NODE (ip_resolver_process_node,static) = {
    .function = resolver_process,
    .type = VLIB_NODE_TYPE_PROCESS,
    .name = "ip-route-resolver-process",
  };
  /* *INDENT-ON* */
  
  static int
  nd_change_data_callback (u32 pool_index, u8 * new_mac,
  			 u32 sw_if_index, ip6_address_t * address)
  {
    vpe_api_main_t *am = &vpe_api_main;
    vl_api_ip6_nd_event_t *event;
  
    if (pool_is_free_index (am->nd_events, pool_index))
      return 1;
  
    event = pool_elt_at_index (am->nd_events, pool_index);
    if (eth_mac_equal (event->new_mac, new_mac) &&
        sw_if_index == ntohl (event->sw_if_index))
      {
        return 1;
      }
  
    clib_memcpy (event->new_mac, new_mac, sizeof (event->new_mac));
    event->sw_if_index = htonl (sw_if_index);
    return 0;
  }
  
  static int
  arp_change_delete_callback (u32 pool_index, u8 * notused)
  {
    vpe_api_main_t *am = &vpe_api_main;
  
    if (pool_is_free_index (am->arp_events, pool_index))
      return 1;
  
    pool_put_index (am->arp_events, pool_index);
    return 0;
  }
  
  static int
  nd_change_delete_callback (u32 pool_index, u8 * notused)
  {
    vpe_api_main_t *am = &vpe_api_main;
  
    if (pool_is_free_index (am->nd_events, pool_index))
      return 1;
  
    pool_put_index (am->nd_events, pool_index);
    return 0;
  }
  
  static vlib_node_registration_t wc_arp_process_node;
  
  enum
  { WC_ARP_REPORT, WC_ND_REPORT, RA_REPORT, REPORT_MAX };
  
  static uword
  wc_arp_process (vlib_main_t * vm, vlib_node_runtime_t * rt, vlib_frame_t * f)
  {
    /* These cross the longjmp  boundry (vlib_process_wait_for_event)
     * and need to be volatile - to prevent them from being optimized into
     * a register - which could change during suspension */
  
    volatile wc_arp_report_t arp_prev = { 0 };
    volatile wc_nd_report_t nd_prev = { 0 };
    volatile f64 last_arp = vlib_time_now (vm);
    volatile f64 last_nd = vlib_time_now (vm);
  
    while (1)
      {
        vlib_process_wait_for_event (vm);
        uword event_type = WC_ARP_REPORT;
        void *event_data = vlib_process_get_event_data (vm, &event_type);
  
        f64 now = vlib_time_now (vm);
        int i;
        if (event_type == WC_ARP_REPORT)
  	{
  	  wc_arp_report_t *arp_events = event_data;
  	  for (i = 0; i < vec_len (arp_events); i++)
  	    {
  	      /* discard dup event */
  	      if (arp_prev.ip4 == arp_events[i].ip4 &&
  		  eth_mac_equal ((u8 *) arp_prev.mac, arp_events[i].mac) &&
  		  arp_prev.sw_if_index == arp_events[i].sw_if_index &&
  		  (now - last_arp) < 10.0)
  		{
  		  continue;
  		}
  	      arp_prev = arp_events[i];
  	      last_arp = now;
  	      vpe_client_registration_t *reg;
              /* *INDENT-OFF* */
              pool_foreach(reg, vpe_api_main.wc_ip4_arp_events_registrations,
              ({
  	      vl_api_registration_t *vl_reg;
                vl_reg = vl_api_client_index_to_registration (reg->client_index);
                ASSERT (vl_reg != NULL);
  	      if (reg && vl_api_can_send_msg (vl_reg))
  	        {
  	          vl_api_ip4_arp_event_t * event = vl_msg_api_alloc (sizeof *event);
  	          clib_memset (event, 0, sizeof *event);
  	          event->_vl_msg_id = htons (VL_API_IP4_ARP_EVENT);
  	          event->client_index = reg->client_index;
  	          event->pid = reg->client_pid;
  	          event->mac_ip = 1;
  	          event->address = arp_events[i].ip4;
  	          event->sw_if_index = htonl(arp_events[i].sw_if_index);
  	          memcpy(event->new_mac, arp_events[i].mac, sizeof event->new_mac);
  	          vl_api_send_msg (vl_reg, (u8 *) event);
  	        }
              }));
              /* *INDENT-ON* */
  	    }
  	}
        else if (event_type == WC_ND_REPORT)
  	{
  	  wc_nd_report_t *nd_events = event_data;
  	  for (i = 0; i < vec_len (nd_events); i++)
  	    {
  	      /* discard dup event */
  	      if (ip6_address_is_equal
  		  ((ip6_address_t *) & nd_prev.ip6, &nd_events[i].ip6)
  		  && eth_mac_equal ((u8 *) nd_prev.mac, nd_events[i].mac)
  		  && nd_prev.sw_if_index == nd_events[i].sw_if_index
  		  && (now - last_nd) < 10.0)
  		{
  		  continue;
  		}
  	      nd_prev = nd_events[i];
  	      last_nd = now;
  	      vpe_client_registration_t *reg;
                /* *INDENT-OFF* */
                pool_foreach(reg, vpe_api_main.wc_ip6_nd_events_registrations,
                ({
  	        vl_api_registration_t *vl_reg;
                  vl_reg = vl_api_client_index_to_registration (reg->client_index);
  	        if (vl_reg && vl_api_can_send_msg (vl_reg))
  	          {
  	            vl_api_ip6_nd_event_t * event = vl_msg_api_alloc (sizeof *event);
  	            clib_memset (event, 0, sizeof *event);
  	            event->_vl_msg_id = htons (VL_API_IP6_ND_EVENT);
  	            event->client_index = reg->client_index;
  	            event->pid = reg->client_pid;
  	            event->mac_ip = 1;
  	            memcpy(event->address, nd_events[i].ip6.as_u8, sizeof event->address);
  	            event->sw_if_index = htonl(nd_events[i].sw_if_index);
  	            memcpy(event->new_mac, nd_events[i].mac, sizeof event->new_mac);
  	            vl_api_send_msg (vl_reg, (u8 *) event);
  	          }
                }));
              /* *INDENT-ON* */
  	    }
  	}
        else if (event_type == RA_REPORT)
  	{
  	  ra_report_t *ra_events = event_data;
  	  for (i = 0; i < vec_len (ra_events); i++)
  	    {
  	      ip6_neighbor_public_main_t *npm = &ip6_neighbor_public_main;
  	      call_ip6_neighbor_callbacks (&ra_events[i],
  					   npm->ra_report_functions);
  
  	      vpe_client_registration_t *reg;
                /* *INDENT-OFF* */
                pool_foreach(reg, vpe_api_main.ip6_ra_events_registrations,
                ({
  		vl_api_registration_t *vl_reg;
  		vl_reg =
  		  vl_api_client_index_to_registration (reg->client_index);
  		if (vl_reg && vl_api_can_send_msg (vl_reg))
  		  {
  		    u32 event_size =
  		      sizeof (vl_api_ip6_ra_event_t) +
  		      vec_len (ra_events[i].prefixes) *
  		      sizeof (vl_api_ip6_ra_prefix_info_t);
  		    vl_api_ip6_ra_event_t *event =
  		      vl_msg_api_alloc (event_size);
  		    clib_memset (event, 0, event_size);
  		    event->_vl_msg_id = htons (VL_API_IP6_RA_EVENT);
  		    event->client_index = reg->client_index;
  		    event->pid = reg->client_pid;
  
  		    event->sw_if_index = clib_host_to_net_u32 (ra_events[i].sw_if_index);
  
  		    memcpy (event->router_address, ra_events[i].router_address, 16);
  
  		    event->current_hop_limit = ra_events[i].current_hop_limit;
  		    event->flags = ra_events[i].flags;
  		    event->router_lifetime_in_sec =
  		      clib_host_to_net_u16 (ra_events
  					    [i].router_lifetime_in_sec);
  		    event->neighbor_reachable_time_in_msec =
  		      clib_host_to_net_u32 (ra_events
  					    [i].neighbor_reachable_time_in_msec);
  		    event->time_in_msec_between_retransmitted_neighbor_solicitations
  		      =
  		      clib_host_to_net_u32 (ra_events
  					    [i].time_in_msec_between_retransmitted_neighbor_solicitations);
  
  		    event->n_prefixes =
  		      clib_host_to_net_u32 (vec_len (ra_events[i].prefixes));
  		    vl_api_ip6_ra_prefix_info_t *prefix =
  		      (typeof (prefix)) event->prefixes;
  		    u32 j;
  		    for (j = 0; j < vec_len (ra_events[i].prefixes); j++)
  		      {
  			ra_report_prefix_info_t *info =
  			  &ra_events[i].prefixes[j];
  			memcpy (prefix->dst_address, info->dst_address.as_u8,
  				16);
  			prefix->dst_address_length = info->dst_address_length;
  			prefix->flags = info->flags;
  			prefix->valid_time =
  			  clib_host_to_net_u32 (info->valid_time);
  			prefix->preferred_time =
  			  clib_host_to_net_u32 (info->preferred_time);
  			prefix++;
  		      }
  
  		    vl_api_send_msg (vl_reg, (u8 *) event);
  		  }
                }));
                /* *INDENT-ON* */
  	      vec_free (ra_events[i].prefixes);
  	    }
  	}
        vlib_process_put_event_data (vm, event_data);
      }
  
    return 0;
  }
  
  /* *INDENT-OFF* */
  VLIB_REGISTER_NODE (wc_arp_process_node,static) = {
    .function = wc_arp_process,
    .type = VLIB_NODE_TYPE_PROCESS,
    .name = "wildcard-ip4-arp-publisher-process",
  };
  /* *INDENT-ON* */
  
  static int
  arp_change_data_callback (u32 pool_index, u8 * new_mac,
  			  u32 sw_if_index, u32 address)
  {
    vpe_api_main_t *am = &vpe_api_main;
    vl_api_ip4_arp_event_t *event;
  
    if (pool_is_free_index (am->arp_events, pool_index))
      return 1;
  
    event = pool_elt_at_index (am->arp_events, pool_index);
    if (eth_mac_equal (event->new_mac, new_mac) &&
        sw_if_index == ntohl (event->sw_if_index))
      {
        return 1;
      }
  
    clib_memcpy (event->new_mac, new_mac, sizeof (event->new_mac));
    event->sw_if_index = htonl (sw_if_index);
    return 0;
  }
  
  static void
  vl_api_want_ip4_arp_events_t_handler (vl_api_want_ip4_arp_events_t * mp)
  {
    vpe_api_main_t *am = &vpe_api_main;
    vnet_main_t *vnm = vnet_get_main ();
    vl_api_want_ip4_arp_events_reply_t *rmp;
    int rv = 0;
  
    if (mp->address == 0)
      {
        uword *p =
  	hash_get (am->wc_ip4_arp_events_registration_hash, mp->client_index);
        vpe_client_registration_t *rp;
        if (p)
  	{
  	  if (mp->enable_disable)
  	    {
  	      clib_warning ("pid %d: already enabled...", mp->pid);
  	      rv = VNET_API_ERROR_INVALID_REGISTRATION;
  	      goto reply;
  	    }
  	  else
  	    {
  	      rp =
  		pool_elt_at_index (am->wc_ip4_arp_events_registrations, p[0]);
  	      pool_put (am->wc_ip4_arp_events_registrations, rp);
  	      hash_unset (am->wc_ip4_arp_events_registration_hash,
  			  mp->client_index);
  	      if (pool_elts (am->wc_ip4_arp_events_registrations) == 0)
  		wc_arp_set_publisher_node (~0, REPORT_MAX);
  	      goto reply;
  	    }
  	}
        if (mp->enable_disable == 0)
  	{
  	  clib_warning ("pid %d: already disabled...", mp->pid);
  	  rv = VNET_API_ERROR_INVALID_REGISTRATION;
  	  goto reply;
  	}
        pool_get (am->wc_ip4_arp_events_registrations, rp);
        rp->client_index = mp->client_index;
        rp->client_pid = mp->pid;
        hash_set (am->wc_ip4_arp_events_registration_hash, rp->client_index,
  		rp - am->wc_ip4_arp_events_registrations);
        wc_arp_set_publisher_node (wc_arp_process_node.index, WC_ARP_REPORT);
        goto reply;
      }
  
    if (mp->enable_disable)
      {
        vl_api_ip4_arp_event_t *event;
        pool_get (am->arp_events, event);
        rv = vnet_add_del_ip4_arp_change_event
  	(vnm, arp_change_data_callback,
  	 mp->pid, &mp->address /* addr, in net byte order */ ,
  	 ip_resolver_process_node.index,
  	 IP4_ARP_EVENT, event - am->arp_events, 1 /* is_add */ );
  
        if (rv)
  	{
  	  pool_put (am->arp_events, event);
  	  goto reply;
  	}
        clib_memset (event, 0, sizeof (*event));
  
        /* Python API expects events to have no context */
        event->_vl_msg_id = htons (VL_API_IP4_ARP_EVENT);
        event->client_index = mp->client_index;
        event->address = mp->address;
        event->pid = mp->pid;
        if (mp->address == 0)
  	event->mac_ip = 1;
      }
    else
      {
        rv = vnet_add_del_ip4_arp_change_event
  	(vnm, arp_change_delete_callback,
  	 mp->pid, &mp->address /* addr, in net byte order */ ,
  	 ip_resolver_process_node.index,
  	 IP4_ARP_EVENT, ~0 /* pool index */ , 0 /* is_add */ );
      }
  reply:
    REPLY_MACRO (VL_API_WANT_IP4_ARP_EVENTS_REPLY);
  }
  
  static clib_error_t *
  want_ip4_arp_events_reaper (u32 client_index)
  {
    vpe_client_registration_t *rp;
    vl_api_ip4_arp_event_t *event;
    u32 *to_delete, *event_id;
    vpe_api_main_t *am;
    vnet_main_t *vnm;
    uword *p;
  
    am = &vpe_api_main;
    vnm = vnet_get_main ();
    to_delete = NULL;
  
    /* clear out all of its pending resolutions */
    /* *INDENT-OFF* */
    pool_foreach(event, am->arp_events,
    ({
      if (event->client_index == client_index)
        {
          vec_add1(to_delete, event - am->arp_events);
        }
    }));
    /* *INDENT-ON* */
  
    vec_foreach (event_id, to_delete)
    {
      event = pool_elt_at_index (am->arp_events, *event_id);
      vnet_add_del_ip4_arp_change_event
        (vnm, arp_change_delete_callback,
         event->pid, &event->address,
         ip_resolver_process_node.index, IP4_ARP_EVENT,
         ~0 /* pool index, notused */ , 0 /* is_add */ );
    }
    vec_free (to_delete);
  
    /* remove from the registration hash */
    p = hash_get (am->wc_ip4_arp_events_registration_hash, client_index);
  
    if (p)
      {
        rp = pool_elt_at_index (am->wc_ip4_arp_events_registrations, p[0]);
        pool_put (am->wc_ip4_arp_events_registrations, rp);
        hash_unset (am->wc_ip4_arp_events_registration_hash, client_index);
        if (pool_elts (am->wc_ip4_arp_events_registrations) == 0)
  	wc_arp_set_publisher_node (~0, REPORT_MAX);
      }
    return (NULL);
  }
  
  VL_MSG_API_REAPER_FUNCTION (want_ip4_arp_events_reaper);
  
  static void
  vl_api_want_ip6_nd_events_t_handler (vl_api_want_ip6_nd_events_t * mp)
  {
    vpe_api_main_t *am = &vpe_api_main;
    vnet_main_t *vnm = vnet_get_main ();
    vl_api_want_ip6_nd_events_reply_t *rmp;
    int rv = 0;
  
    if (ip6_address_is_zero ((ip6_address_t *) mp->address))
      {
        uword *p =
  	hash_get (am->wc_ip6_nd_events_registration_hash, mp->client_index);
        vpe_client_registration_t *rp;
        if (p)
  	{
  	  if (mp->enable_disable)
  	    {
  	      clib_warning ("pid %d: already enabled...", mp->pid);
  	      rv = VNET_API_ERROR_INVALID_REGISTRATION;
  	      goto reply;
  	    }
  	  else
  	    {
  	      rp =
  		pool_elt_at_index (am->wc_ip6_nd_events_registrations, p[0]);
  	      pool_put (am->wc_ip6_nd_events_registrations, rp);
  	      hash_unset (am->wc_ip6_nd_events_registration_hash,
  			  mp->client_index);
  	      if (pool_elts (am->wc_ip6_nd_events_registrations) == 0)
  		wc_nd_set_publisher_node (~0, REPORT_MAX);
  	      goto reply;
  	    }
  	}
        if (mp->enable_disable == 0)
  	{
  	  clib_warning ("pid %d: already disabled...", mp->pid);
  	  rv = VNET_API_ERROR_INVALID_REGISTRATION;
  	  goto reply;
  	}
        pool_get (am->wc_ip6_nd_events_registrations, rp);
        rp->client_index = mp->client_index;
        rp->client_pid = mp->pid;
        hash_set (am->wc_ip6_nd_events_registration_hash, rp->client_index,
  		rp - am->wc_ip6_nd_events_registrations);
        wc_nd_set_publisher_node (wc_arp_process_node.index, WC_ND_REPORT);
        goto reply;
      }
  
    if (mp->enable_disable)
      {
        vl_api_ip6_nd_event_t *event;
        pool_get (am->nd_events, event);
  
        rv = vnet_add_del_ip6_nd_change_event
  	(vnm, nd_change_data_callback,
  	 mp->pid, mp->address /* addr, in net byte order */ ,
  	 ip_resolver_process_node.index,
  	 IP6_ND_EVENT, event - am->nd_events, 1 /* is_add */ );
  
        if (rv)
  	{
  	  pool_put (am->nd_events, event);
  	  goto reply;
  	}
        clib_memset (event, 0, sizeof (*event));
  
        event->_vl_msg_id = ntohs (VL_API_IP6_ND_EVENT);
        event->client_index = mp->client_index;
        clib_memcpy (event->address, mp->address, sizeof event->address);
        event->pid = mp->pid;
      }
    else
      {
        rv = vnet_add_del_ip6_nd_change_event
  	(vnm, nd_change_delete_callback,
  	 mp->pid, mp->address /* addr, in net byte order */ ,
  	 ip_resolver_process_node.index,
  	 IP6_ND_EVENT, ~0 /* pool index */ , 0 /* is_add */ );
      }
  reply:
    REPLY_MACRO (VL_API_WANT_IP6_ND_EVENTS_REPLY);
  }
  
  static clib_error_t *
  want_ip6_nd_events_reaper (u32 client_index)
  {
  
    vpe_client_registration_t *rp;
    vl_api_ip6_nd_event_t *event;
    u32 *to_delete, *event_id;
    vpe_api_main_t *am;
    vnet_main_t *vnm;
    uword *p;
  
    am = &vpe_api_main;
    vnm = vnet_get_main ();
    to_delete = NULL;
  
    /* clear out all of its pending resolutions */
    /* *INDENT-OFF* */
    pool_foreach(event, am->nd_events,
    ({
      if (event->client_index == client_index)
        {
          vec_add1(to_delete, event - am->nd_events);
        }
    }));
    /* *INDENT-ON* */
  
    vec_foreach (event_id, to_delete)
    {
      event = pool_elt_at_index (am->nd_events, *event_id);
      vnet_add_del_ip6_nd_change_event
        (vnm, nd_change_delete_callback,
         event->pid, &event->address,
         ip_resolver_process_node.index, IP6_ND_EVENT,
         ~0 /* pool index, notused */ , 0 /* is_add */ );
    }
    vec_free (to_delete);
  
    /* remove from the registration hash */
    p = hash_get (am->wc_ip6_nd_events_registration_hash, client_index);
  
    if (p)
      {
        rp = pool_elt_at_index (am->wc_ip6_nd_events_registrations, p[0]);
        pool_put (am->wc_ip6_nd_events_registrations, rp);
        hash_unset (am->wc_ip6_nd_events_registration_hash, client_index);
        if (pool_elts (am->wc_ip6_nd_events_registrations) == 0)
  	wc_nd_set_publisher_node (~0, REPORT_MAX);
      }
    return (NULL);
  }
  
  VL_MSG_API_REAPER_FUNCTION (want_ip6_nd_events_reaper);
  
  static void
  vl_api_want_ip6_ra_events_t_handler (vl_api_want_ip6_ra_events_t * mp)
  {
    vpe_api_main_t *am = &vpe_api_main;
    vl_api_want_ip6_ra_events_reply_t *rmp;
    int rv = 0;
  
    uword *p = hash_get (am->ip6_ra_events_registration_hash, mp->client_index);
    vpe_client_registration_t *rp;
    if (p)
      {
        if (mp->enable_disable)
  	{
  	  clib_warning ("pid %d: already enabled...", ntohl (mp->pid));
  	  rv = VNET_API_ERROR_INVALID_REGISTRATION;
  	  goto reply;
  	}
        else
  	{
  	  rp = pool_elt_at_index (am->ip6_ra_events_registrations, p[0]);
  	  pool_put (am->ip6_ra_events_registrations, rp);
  	  hash_unset (am->ip6_ra_events_registration_hash, mp->client_index);
  	  goto reply;
  	}
      }
    if (mp->enable_disable == 0)
      {
        clib_warning ("pid %d: already disabled...", ntohl (mp->pid));
        rv = VNET_API_ERROR_INVALID_REGISTRATION;
        goto reply;
      }
    pool_get (am->ip6_ra_events_registrations, rp);
    rp->client_index = mp->client_index;
    rp->client_pid = ntohl (mp->pid);
    hash_set (am->ip6_ra_events_registration_hash, rp->client_index,
  	    rp - am->ip6_ra_events_registrations);
  
  reply:
    REPLY_MACRO (VL_API_WANT_IP6_RA_EVENTS_REPLY);
  }
  
  static clib_error_t *
  want_ip6_ra_events_reaper (u32 client_index)
  {
    vpe_api_main_t *am = &vpe_api_main;
    vpe_client_registration_t *rp;
    uword *p;
  
    p = hash_get (am->ip6_ra_events_registration_hash, client_index);
  
    if (p)
      {
        rp = pool_elt_at_index (am->ip6_ra_events_registrations, p[0]);
        pool_put (am->ip6_ra_events_registrations, rp);
        hash_unset (am->ip6_ra_events_registration_hash, client_index);
      }
    return (NULL);
  }
  
  VL_MSG_API_REAPER_FUNCTION (want_ip6_ra_events_reaper);
  
  static void
  vl_api_proxy_arp_add_del_t_handler (vl_api_proxy_arp_add_del_t * mp)
  {
    vl_api_proxy_arp_add_del_reply_t *rmp;
    u32 fib_index;
    int rv;
    ip4_main_t *im = &ip4_main;
    uword *p;
  
    stats_dslock_with_hint (1 /* release hint */ , 6 /* tag */ );
  
    p = hash_get (im->fib_index_by_table_id, ntohl (mp->proxy.vrf_id));
  
    if (!p)
      {
        rv = VNET_API_ERROR_NO_SUCH_FIB;
        goto out;
      }
  
    fib_index = p[0];
  
    rv = vnet_proxy_arp_add_del ((ip4_address_t *) mp->proxy.low_address,
  			       (ip4_address_t *) mp->proxy.hi_address,
  			       fib_index, mp->is_add == 0);
  
  out:
    stats_dsunlock ();
    REPLY_MACRO (VL_API_PROXY_ARP_ADD_DEL_REPLY);
  }
  
  typedef struct proxy_arp_walk_ctx_t_
  {
    vl_api_registration_t *reg;
    u32 context;
  } proxy_arp_walk_ctx_t;
  
  static walk_rc_t
  send_proxy_arp_details (const ip4_address_t * lo_addr,
  			const ip4_address_t * hi_addr,
  			u32 fib_index, void *data)
  {
    vl_api_proxy_arp_details_t *mp;
    proxy_arp_walk_ctx_t *ctx;
  
    ctx = data;
  
    mp = vl_msg_api_alloc (sizeof (*mp));
    clib_memset (mp, 0, sizeof (*mp));
    mp->_vl_msg_id = ntohs (VL_API_PROXY_ARP_DETAILS);
    mp->context = ctx->context;
    mp->proxy.vrf_id = htonl (fib_index);
    clib_memcpy (mp->proxy.low_address, lo_addr,
  	       sizeof (mp->proxy.low_address));
    clib_memcpy (mp->proxy.hi_address, hi_addr, sizeof (mp->proxy.hi_address));
  
    vl_api_send_msg (ctx->reg, (u8 *) mp);
  
    return (WALK_CONTINUE);
  }
  
  static void
  vl_api_proxy_arp_dump_t_handler (vl_api_proxy_arp_dump_t * mp)
  {
    vl_api_registration_t *reg;
  
    reg = vl_api_client_index_to_registration (mp->client_index);
    if (!reg)
      return;
  
    proxy_arp_walk_ctx_t wctx = {
      .reg = reg,
      .context = mp->context,
    };
  
    proxy_arp_walk (send_proxy_arp_details, &wctx);
  }
  
  static walk_rc_t
  send_proxy_arp_intfc_details (vnet_main_t * vnm,
  			      vnet_sw_interface_t * si, void *data)
  {
    vl_api_proxy_arp_intfc_details_t *mp;
    proxy_arp_walk_ctx_t *ctx;
  
    if (!(si->flags & VNET_SW_INTERFACE_FLAG_PROXY_ARP))
      return (WALK_CONTINUE);
  
    ctx = data;
  
    mp = vl_msg_api_alloc (sizeof (*mp));
    clib_memset (mp, 0, sizeof (*mp));
    mp->_vl_msg_id = ntohs (VL_API_PROXY_ARP_INTFC_DETAILS);
    mp->context = ctx->context;
    mp->sw_if_index = htonl (si->sw_if_index);
  
    vl_api_send_msg (ctx->reg, (u8 *) mp);
  
    return (WALK_CONTINUE);
  }
  
  static void
  vl_api_proxy_arp_intfc_dump_t_handler (vl_api_proxy_arp_intfc_dump_t * mp)
  {
    vl_api_registration_t *reg;
  
    reg = vl_api_client_index_to_registration (mp->client_index);
    if (!reg)
      return;
  
    proxy_arp_walk_ctx_t wctx = {
      .reg = reg,
      .context = mp->context,
    };
  
    vnet_sw_interface_walk (vnet_get_main (),
  			  send_proxy_arp_intfc_details, &wctx);
  }
  
  static void
    vl_api_proxy_arp_intfc_enable_disable_t_handler
    (vl_api_proxy_arp_intfc_enable_disable_t * mp)
  {
    int rv = 0;
    vnet_main_t *vnm = vnet_get_main ();
    vl_api_proxy_arp_intfc_enable_disable_reply_t *rmp;
  
    VALIDATE_SW_IF_INDEX (mp);
  
    vnet_sw_interface_t *si =
      vnet_get_sw_interface (vnm, ntohl (mp->sw_if_index));
  
    ASSERT (si);
  
    if (mp->enable_disable)
      si->flags |= VNET_SW_INTERFACE_FLAG_PROXY_ARP;
    else
      si->flags &= ~VNET_SW_INTERFACE_FLAG_PROXY_ARP;
  
    BAD_SW_IF_INDEX_LABEL;
  
    REPLY_MACRO (VL_API_PROXY_ARP_INTFC_ENABLE_DISABLE_REPLY);
  }
  
  static void
  vl_api_ip_probe_neighbor_t_handler (vl_api_ip_probe_neighbor_t * mp)
  {
    int rv = 0;
    vlib_main_t *vm = vlib_get_main ();
    vl_api_ip_probe_neighbor_reply_t *rmp;
    clib_error_t *error;
  
    VALIDATE_SW_IF_INDEX (mp);
  
    u32 sw_if_index = ntohl (mp->sw_if_index);
  
    if (mp->is_ipv6)
      error = ip6_probe_neighbor (vm, (ip6_address_t *) mp->dst_address,
  				sw_if_index, 0);
    else
      error = ip4_probe_neighbor (vm, (ip4_address_t *) mp->dst_address,
  				sw_if_index, 0);
  
    if (error)
      {
        clib_error_report (error);
        rv = clib_error_get_code (error);
      }
  
    BAD_SW_IF_INDEX_LABEL;
  
    REPLY_MACRO (VL_API_PROXY_ARP_INTFC_ENABLE_DISABLE_REPLY);
  }
  
  static void
    vl_api_ip_scan_neighbor_enable_disable_t_handler
    (vl_api_ip_scan_neighbor_enable_disable_t * mp)
  {
    int rv = 0;
    vl_api_ip_scan_neighbor_enable_disable_reply_t *rmp;
    ip_neighbor_scan_arg_t arg;
  
    arg.mode = mp->mode;
    arg.scan_interval = mp->scan_interval;
    arg.max_proc_time = mp->max_proc_time;
    arg.max_update = mp->max_update;
    arg.scan_int_delay = mp->scan_int_delay;
    arg.stale_threshold = mp->stale_threshold;
    ip_neighbor_scan_enable_disable (&arg);
  
    REPLY_MACRO (VL_API_IP_SCAN_NEIGHBOR_ENABLE_DISABLE_REPLY);
  }
  
  static int
  ip4_reset_fib_t_handler (vl_api_reset_fib_t * mp)
  {
    vnet_main_t *vnm = vnet_get_main ();
    vnet_interface_main_t *im = &vnm->interface_main;
    ip4_main_t *im4 = &ip4_main;
    static u32 *sw_if_indices_to_shut;
    fib_table_t *fib_table;
    ip4_fib_t *fib;
    u32 sw_if_index;
    int i;
    int rv = VNET_API_ERROR_NO_SUCH_FIB;
    u32 target_fib_id = ntohl (mp->vrf_id);
  
    stats_dslock_with_hint (1 /* release hint */ , 8 /* tag */ );
  
    /* *INDENT-OFF* */
    pool_foreach (fib_table, im4->fibs,
    ({
      vnet_sw_interface_t * si;
  
      fib = pool_elt_at_index (im4->v4_fibs, fib_table->ft_index);
  
      if (fib->table_id != target_fib_id)
        continue;
  
      /* remove any mpls encap/decap labels */
      mpls_fib_reset_labels (fib->table_id);
  
      /* remove any proxy arps in this fib */
      vnet_proxy_arp_fib_reset (fib->table_id);
  
      /* Set the flow hash for this fib to the default */
      vnet_set_ip4_flow_hash (fib->table_id, IP_FLOW_HASH_DEFAULT);
  
      vec_reset_length (sw_if_indices_to_shut);
  
      /* Shut down interfaces in this FIB / clean out intfc routes */
      pool_foreach (si, im->sw_interfaces,
      ({
        u32 sw_if_index = si->sw_if_index;
  
        if (sw_if_index < vec_len (im4->fib_index_by_sw_if_index)
            && (im4->fib_index_by_sw_if_index[si->sw_if_index] ==
                fib->index))
          vec_add1 (sw_if_indices_to_shut, si->sw_if_index);
      }));
  
      for (i = 0; i < vec_len (sw_if_indices_to_shut); i++) {
        sw_if_index = sw_if_indices_to_shut[i];
  
        u32 flags = vnet_sw_interface_get_flags (vnm, sw_if_index);
        flags &= ~(VNET_SW_INTERFACE_FLAG_ADMIN_UP);
        vnet_sw_interface_set_flags (vnm, sw_if_index, flags);
      }
  
      fib_table_flush(fib->index, FIB_PROTOCOL_IP4, FIB_SOURCE_API);
  
      rv = 0;
      break;
      })); /* pool_foreach (fib) */
      /* *INDENT-ON* */
  
    stats_dsunlock ();
    return rv;
  }
  
  static int
  ip6_reset_fib_t_handler (vl_api_reset_fib_t * mp)
  {
    vnet_main_t *vnm = vnet_get_main ();
    vnet_interface_main_t *im = &vnm->interface_main;
    ip6_main_t *im6 = &ip6_main;
    static u32 *sw_if_indices_to_shut;
    fib_table_t *fib_table;
    ip6_fib_t *fib;
    u32 sw_if_index;
    int i;
    int rv = VNET_API_ERROR_NO_SUCH_FIB;
    u32 target_fib_id = ntohl (mp->vrf_id);
  
    stats_dslock_with_hint (1 /* release hint */ , 9 /* tag */ );
  
    /* *INDENT-OFF* */
    pool_foreach (fib_table, im6->fibs,
    ({
      vnet_sw_interface_t * si;
  
      fib = pool_elt_at_index (im6->v6_fibs, fib_table->ft_index);
  
      if (fib->table_id != target_fib_id)
        continue;
  
      vec_reset_length (sw_if_indices_to_shut);
  
      /* Set the flow hash for this fib to the default */
      vnet_set_ip6_flow_hash (fib->table_id, IP_FLOW_HASH_DEFAULT);
  
      /* Shut down interfaces in this FIB / clean out intfc routes */
      pool_foreach (si, im->sw_interfaces,
      ({
        if (im6->fib_index_by_sw_if_index[si->sw_if_index] ==
            fib->index)
          vec_add1 (sw_if_indices_to_shut, si->sw_if_index);
      }));
  
      for (i = 0; i < vec_len (sw_if_indices_to_shut); i++) {
        sw_if_index = sw_if_indices_to_shut[i];
  
        u32 flags = vnet_sw_interface_get_flags (vnm, sw_if_index);
        flags &= ~(VNET_SW_INTERFACE_FLAG_ADMIN_UP);
        vnet_sw_interface_set_flags (vnm, sw_if_index, flags);
      }
  
      fib_table_flush(fib->index, FIB_PROTOCOL_IP6, FIB_SOURCE_API);
  
      rv = 0;
      break;
    })); /* pool_foreach (fib) */
    /* *INDENT-ON* */
  
    stats_dsunlock ();
    return rv;
  }
  
  static void
  vl_api_reset_fib_t_handler (vl_api_reset_fib_t * mp)
  {
    int rv;
    vl_api_reset_fib_reply_t *rmp;
  
    if (mp->is_ipv6)
      rv = ip6_reset_fib_t_handler (mp);
    else
      rv = ip4_reset_fib_t_handler (mp);
  
    REPLY_MACRO (VL_API_RESET_FIB_REPLY);
  }
  
  static void
  vl_api_set_arp_neighbor_limit_t_handler (vl_api_set_arp_neighbor_limit_t * mp)
  {
    int rv;
    vl_api_set_arp_neighbor_limit_reply_t *rmp;
    vnet_main_t *vnm = vnet_get_main ();
    clib_error_t *error;
  
    vnm->api_errno = 0;
  
    if (mp->is_ipv6)
      error = ip6_set_neighbor_limit (ntohl (mp->arp_neighbor_limit));
    else
      error = ip4_set_arp_limit (ntohl (mp->arp_neighbor_limit));
  
    if (error)
      {
        clib_error_report (error);
        rv = VNET_API_ERROR_UNSPECIFIED;
      }
    else
      {
        rv = vnm->api_errno;
      }
  
    REPLY_MACRO (VL_API_SET_ARP_NEIGHBOR_LIMIT_REPLY);
  }
  
  void
  vl_api_ip_reassembly_set_t_handler (vl_api_ip_reassembly_set_t * mp)
  {
    vl_api_ip_reassembly_set_reply_t *rmp;
    int rv = 0;
    if (mp->is_ip6)
      {
        rv = ip6_reass_set (clib_net_to_host_u32 (mp->timeout_ms),
  			  clib_net_to_host_u32 (mp->max_reassemblies),
  			  clib_net_to_host_u32 (mp->expire_walk_interval_ms));
      }
    else
      {
        rv = ip4_reass_set (clib_net_to_host_u32 (mp->timeout_ms),
  			  clib_net_to_host_u32 (mp->max_reassemblies),
  			  clib_net_to_host_u32 (mp->expire_walk_interval_ms));
      }
  
    REPLY_MACRO (VL_API_IP_REASSEMBLY_SET_REPLY);
  }
  
  void
  vl_api_ip_reassembly_get_t_handler (vl_api_ip_reassembly_get_t * mp)
  {
    unix_shared_memory_queue_t *q;
  
    q = vl_api_client_index_to_input_queue (mp->client_index);
  
    if (q == 0)
      return;
  
    vl_api_ip_reassembly_get_reply_t *rmp = vl_msg_api_alloc (sizeof (*rmp));
    clib_memset (rmp, 0, sizeof (*rmp));
    rmp->_vl_msg_id = ntohs (VL_API_IP_REASSEMBLY_GET_REPLY);
    rmp->context = mp->context;
    rmp->retval = 0;
    if (mp->is_ip6)
      {
        rmp->is_ip6 = 1;
        ip6_reass_get (&rmp->timeout_ms, &rmp->max_reassemblies,
  		     &rmp->expire_walk_interval_ms);
      }
    else
      {
        rmp->is_ip6 = 0;
        ip4_reass_get (&rmp->timeout_ms, &rmp->max_reassemblies,
  		     &rmp->expire_walk_interval_ms);
      }
    rmp->timeout_ms = clib_host_to_net_u32 (rmp->timeout_ms);
    rmp->max_reassemblies = clib_host_to_net_u32 (rmp->max_reassemblies);
    rmp->expire_walk_interval_ms =
      clib_host_to_net_u32 (rmp->expire_walk_interval_ms);
    vl_msg_api_send_shmem (q, (u8 *) & rmp);
  }
  
  void
    vl_api_ip_reassembly_enable_disable_t_handler
    (vl_api_ip_reassembly_enable_disable_t * mp)
  {
    vl_api_ip_reassembly_enable_disable_reply_t *rmp;
    int rv = 0;
    rv = ip4_reass_enable_disable (clib_net_to_host_u32 (mp->sw_if_index),
  				 mp->enable_ip4);
    if (0 == rv)
      {
        rv = ip6_reass_enable_disable (clib_net_to_host_u32 (mp->sw_if_index),
  				     mp->enable_ip6);
      }
  
    REPLY_MACRO (VL_API_IP_REASSEMBLY_ENABLE_DISABLE_REPLY);
  }
  
  void
  send_ip_punt_redirect_details (vl_api_registration_t * reg,
  			       u32 context, u32 sw_if_index,
  			       ip_punt_redirect_rx_t * pr, u8 is_ipv6)
  {
    vl_api_ip_punt_redirect_details_t *mp;
  
    mp = vl_msg_api_alloc (sizeof (*mp));
    if (!mp)
      return;
  
    clib_memset (mp, 0, sizeof (*mp));
    mp->_vl_msg_id = ntohs (VL_API_IP_PUNT_REDIRECT_DETAILS);
    mp->context = context;
    mp->punt.rx_sw_if_index = htonl (sw_if_index);
    mp->punt.tx_sw_if_index = htonl (pr->tx_sw_if_index);
    if (is_ipv6)
      {
        ip_address_encode (&pr->nh, IP46_TYPE_IP6, &mp->punt.nh);
      }
    else
      {
        ip_address_encode (&pr->nh, IP46_TYPE_IP4, &mp->punt.nh);
      }
  
    vl_api_send_msg (reg, (u8 *) mp);
  }
  
  static void
  vl_api_ip_punt_redirect_dump_t_handler (vl_api_ip_punt_redirect_dump_t * mp)
  {
    vl_api_registration_t *reg;
    u32 sw_if_index;
    int rv __attribute__ ((unused)) = 0;
  
    sw_if_index = ntohl (mp->sw_if_index);
    reg = vl_api_client_index_to_registration (mp->client_index);
    if (!reg)
      return;
  
    if (~0 != sw_if_index)
      VALIDATE_SW_IF_INDEX (mp);
  
    ip_punt_redirect_detail_t *pr, *prs;
    if (mp->is_ipv6)
      {
        prs = ip6_punt_redirect_entries (sw_if_index);
        /* *INDENT-OFF* */
        vec_foreach (pr, prs)
        {
          send_ip_punt_redirect_details (reg, mp->context, pr->rx_sw_if_index, &pr->punt_redirect, 1);
        }
        /* *INDENT-ON* */
        vec_free (prs);
      }
    else
      {
        prs = ip4_punt_redirect_entries (sw_if_index);
        /* *INDENT-OFF* */
        vec_foreach (pr, prs)
        {
          send_ip_punt_redirect_details (reg, mp->context, pr->rx_sw_if_index, &pr->punt_redirect, 0);
        }
        /* *INDENT-ON* */
        vec_free (prs);
      }
  
    BAD_SW_IF_INDEX_LABEL;
  }
  
  #define vl_msg_name_crc_list
  #include <vnet/ip/ip.api.h>
  #undef vl_msg_name_crc_list
  
  static void
  setup_message_id_table (api_main_t * am)
  {
  #define _(id,n,crc) vl_msg_api_add_msg_name_crc (am, #n "_" #crc, id);
    foreach_vl_msg_name_crc_ip;
  #undef _
  }
  
  static clib_error_t *
  ip_api_hookup (vlib_main_t * vm)
  {
    api_main_t *am = &api_main;
  
  #define _(N,n)                                                  \
      vl_msg_api_set_handlers(VL_API_##N, #n,                     \
                             vl_api_##n##_t_handler,              \
                             vl_noop_handler,                     \
                             vl_api_##n##_t_endian,               \
                             vl_api_##n##_t_print,                \
                             sizeof(vl_api_##n##_t), 1);
    foreach_ip_api_msg;
  #undef _
  
    /*
     * Mark the route add/del API as MP safe
     */
    am->is_mp_safe[VL_API_IP_ADD_DEL_ROUTE] = 1;
    am->is_mp_safe[VL_API_IP_ADD_DEL_ROUTE_REPLY] = 1;
  
    /*
     * Set up the (msg_name, crc, message-id) table
     */
    setup_message_id_table (am);
  
    ra_set_publisher_node (wc_arp_process_node.index, RA_REPORT);
  
    return 0;
  }
  
  VLIB_API_INIT_FUNCTION (ip_api_hookup);
  
  /*
   * fd.io coding-style-patch-verification: ON
   *
   * Local Variables:
   * eval: (c-set-style "gnu")
   * End:
   */
  