text: /*
   *------------------------------------------------------------------
   * api.c - message handler registration
   *
   * Copyright (c) 2010 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 <stdio.h>
  #include <stdlib.h>
  #include <string.h>
  #include <sys/types.h>
  #include <sys/mman.h>
  #include <sys/stat.h>
  #include <netinet/in.h>
  #include <signal.h>
  #include <pthread.h>
  #include <unistd.h>
  #include <time.h>
  #include <fcntl.h>
  #include <string.h>
  #include <pwd.h>
  #include <grp.h>
  
  #include <vppinfra/clib.h>
  #include <vppinfra/vec.h>
  #include <vppinfra/hash.h>
  #include <vppinfra/bitmap.h>
  #include <vppinfra/fifo.h>
  #include <vppinfra/time.h>
  #include <vppinfra/mheap.h>
  #include <vppinfra/heap.h>
  #include <vppinfra/pool.h>
  #include <vppinfra/format.h>
  #include <vppinfra/error.h>
  
  #include <vnet/api_errno.h>
  #include <vnet/vnet.h>
  #include <vnet/l2/l2_input.h>
  #include <vnet/l2/l2_bd.h>
  #include <vnet/l2tp/l2tp.h>
  #include <vnet/ip/ip.h>
  #include <vnet/ip/ip6.h>
  #include <vnet/unix/tuntap.h>
  #include <vnet/unix/tapcli.h>
  #include <vnet/mpls-gre/mpls.h>
  #include <vnet/dhcp/proxy.h>
  #include <vnet/dhcp/client.h>
  #if IPV6SR > 0
  #include <vnet/sr/sr.h>
  #endif
  #include <vnet/dhcpv6/proxy.h>
  #include <vlib/vlib.h>
  #include <vlib/unix/unix.h>
  #include <vlibapi/api.h>
  #include <vlibmemory/api.h>
  #include <vnet/classify/vnet_classify.h>
  #include <vnet/classify/input_acl.h>
  #include <vnet/classify/policer_classify.h>
  #include <vnet/l2/l2_classify.h>
  #include <vnet/vxlan/vxlan.h>
  #include <vnet/gre/gre.h>
  #include <vnet/l2/l2_vtr.h>
  #include <vnet/vxlan-gpe/vxlan_gpe.h>
  #include <vnet/lisp-gpe/lisp_gpe.h>
  #include <vnet/lisp-cp/control.h>
  #include <vnet/map/map.h>
  #include <vnet/cop/cop.h>
  #include <vnet/ip/ip6_hop_by_hop.h>
  #include <vnet/ip/ip_source_and_port_range_check.h>
  #include <vnet/devices/af_packet/af_packet.h>
  #include <vnet/policer/policer.h>
  #include <vnet/devices/netmap/netmap.h>
  #include <vnet/flow/flow_report.h>
  #include <vnet/ipsec-gre/ipsec_gre.h>
  #include <vnet/flow/flow_report_classify.h>
  
  #undef BIHASH_TYPE
  #undef __included_bihash_template_h__
  #include <vnet/l2/l2_fib.h>
  
  #if IPSEC > 0
  #include <vnet/ipsec/ipsec.h>
  #include <vnet/ipsec/ikev2.h>
  #endif /* IPSEC */
  #include <vnet/devices/virtio/vhost-user.h>
  
  #include <stats/stats.h>
  #include <oam/oam.h>
  
  #include <vnet/ethernet/ethernet.h>
  #include <vnet/ethernet/arp_packet.h>
  #include <vnet/interface.h>
  
  #include <vnet/l2/l2_fib.h>
  #include <vnet/l2/l2_bd.h>
  #include <vpp-api/vpe_msg_enum.h>
  
  #define f64_endian(a)
  #define f64_print(a,b)
  
  #define vl_typedefs		/* define message structures */
  #include <vpp-api/vpe_all_api_h.h>
  #undef vl_typedefs
  
  #define vl_endianfun		/* define message structures */
  #include <vpp-api/vpe_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 <vpp-api/vpe_all_api_h.h>
  #undef vl_printfun
  
  #define REPLY_MACRO(t)                                          \
  do {                                                            \
      unix_shared_memory_queue_t * q;                             \
      rv = vl_msg_api_pd_handler (mp, rv);                        \
      q = vl_api_client_index_to_input_queue (mp->client_index);  \
      if (!q)                                                     \
          return;                                                 \
                                                                  \
      rmp = vl_msg_api_alloc (sizeof (*rmp));                     \
      rmp->_vl_msg_id = ntohs((t));                               \
      rmp->context = mp->context;                                 \
      rmp->retval = ntohl(rv);                                    \
                                                                  \
      vl_msg_api_send_shmem (q, (u8 *)&rmp);                      \
  } while(0);
  
  #define REPLY_MACRO2(t, body)                                   \
  do {                                                            \
      unix_shared_memory_queue_t * q;                             \
      rv = vl_msg_api_pd_handler (mp, rv);                        \
      q = vl_api_client_index_to_input_queue (mp->client_index);  \
      if (!q)                                                     \
          return;                                                 \
                                                                  \
      rmp = vl_msg_api_alloc (sizeof (*rmp));                     \
      rmp->_vl_msg_id = ntohs((t));                               \
      rmp->context = mp->context;                                 \
      rmp->retval = ntohl(rv);                                    \
      do {body;} while (0);                                       \
      vl_msg_api_send_shmem (q, (u8 *)&rmp);                      \
  } while(0);
  
  #define REPLY_MACRO3(t, n, body)				\
  do {                                                            \
      unix_shared_memory_queue_t * q;                             \
      rv = vl_msg_api_pd_handler (mp, rv);                        \
      q = vl_api_client_index_to_input_queue (mp->client_index);  \
      if (!q)                                                     \
          return;                                                 \
                                                                  \
      rmp = vl_msg_api_alloc (sizeof (*rmp) + n);                 \
      rmp->_vl_msg_id = ntohs((t));                               \
      rmp->context = mp->context;                                 \
      rmp->retval = ntohl(rv);                                    \
      do {body;} while (0);                                       \
      vl_msg_api_send_shmem (q, (u8 *)&rmp);                      \
  } while(0);
  
  #if (1 || CLIB_DEBUG > 0)	/* "trust, but verify" */
  
  #define VALIDATE_SW_IF_INDEX(mp)				\
   do { u32 __sw_if_index = ntohl(mp->sw_if_index);		\
      vnet_main_t *__vnm = vnet_get_main();                       \
      if (pool_is_free_index(__vnm->interface_main.sw_interfaces, \
                             __sw_if_index)) {                    \
          rv = VNET_API_ERROR_INVALID_SW_IF_INDEX;                \
          goto bad_sw_if_index;                                   \
      }                                                           \
  } while(0);
  
  #define BAD_SW_IF_INDEX_LABEL                   \
  do {                                            \
  bad_sw_if_index:                                \
      ;                                           \
  } while (0);
  
  #define VALIDATE_RX_SW_IF_INDEX(mp)				\
   do { u32 __rx_sw_if_index = ntohl(mp->rx_sw_if_index);		\
      vnet_main_t *__vnm = vnet_get_main();                       \
      if (pool_is_free_index(__vnm->interface_main.sw_interfaces, \
                             __rx_sw_if_index)) {			\
          rv = VNET_API_ERROR_INVALID_SW_IF_INDEX;                \
          goto bad_rx_sw_if_index;				\
      }                                                           \
  } while(0);
  
  #define BAD_RX_SW_IF_INDEX_LABEL		\
  do {                                            \
  bad_rx_sw_if_index:				\
      ;                                           \
  } while (0);
  
  #define VALIDATE_TX_SW_IF_INDEX(mp)				\
   do { u32 __tx_sw_if_index = ntohl(mp->tx_sw_if_index);		\
      vnet_main_t *__vnm = vnet_get_main();                       \
      if (pool_is_free_index(__vnm->interface_main.sw_interfaces, \
                             __tx_sw_if_index)) {			\
          rv = VNET_API_ERROR_INVALID_SW_IF_INDEX;                \
          goto bad_tx_sw_if_index;				\
      }                                                           \
  } while(0);
  
  #define BAD_TX_SW_IF_INDEX_LABEL		\
  do {                                            \
  bad_tx_sw_if_index:				\
      ;                                           \
  } while (0);
  
  #else
  
  #define VALIDATE_SW_IF_INDEX(mp)
  #define BAD_SW_IF_INDEX_LABEL
  #define VALIDATE_RX_SW_IF_INDEX(mp)
  #define BAD_RX_SW_IF_INDEX_LABEL
  #define VALIDATE_TX_SW_IF_INDEX(mp)
  #define BAD_TX_SW_IF_INDEX_LABEL
  
  #endif /* CLIB_DEBUG > 0 */
  
  #define foreach_vpe_api_msg                                             \
  _(WANT_INTERFACE_EVENTS, want_interface_events)                         \
  _(WANT_OAM_EVENTS, want_oam_events)                                     \
  _(OAM_ADD_DEL, oam_add_del)                                             \
  _(SW_INTERFACE_DUMP, sw_interface_dump)                                 \
  _(SW_INTERFACE_DETAILS, sw_interface_details)                           \
  _(SW_INTERFACE_SET_FLAGS, sw_interface_set_flags)                       \
  _(IP_ADD_DEL_ROUTE, ip_add_del_route)                                   \
  _(IS_ADDRESS_REACHABLE, is_address_reachable)                           \
  _(SW_INTERFACE_ADD_DEL_ADDRESS, sw_interface_add_del_address)           \
  _(SW_INTERFACE_SET_TABLE, sw_interface_set_table)                       \
  _(SW_INTERFACE_SET_VPATH, sw_interface_set_vpath)                       \
  _(SW_INTERFACE_SET_L2_XCONNECT, sw_interface_set_l2_xconnect)           \
  _(SW_INTERFACE_SET_L2_BRIDGE, sw_interface_set_l2_bridge)               \
  _(BRIDGE_DOMAIN_ADD_DEL, bridge_domain_add_del)                         \
  _(BRIDGE_DOMAIN_DUMP, bridge_domain_dump)                               \
  _(BRIDGE_DOMAIN_DETAILS, bridge_domain_details)                         \
  _(BRIDGE_DOMAIN_SW_IF_DETAILS, bridge_domain_sw_if_details)             \
  _(L2FIB_ADD_DEL, l2fib_add_del)                                         \
  _(L2_FLAGS, l2_flags)                                                   \
  _(BRIDGE_FLAGS, bridge_flags)                                           \
  _(TAP_CONNECT, tap_connect)                                             \
  _(TAP_MODIFY, tap_modify)                                               \
  _(TAP_DELETE, tap_delete)                                               \
  _(SW_INTERFACE_TAP_DUMP, sw_interface_tap_dump)                         \
  _(CREATE_VLAN_SUBIF, create_vlan_subif)                                 \
  _(CREATE_SUBIF, create_subif)                                           \
  _(MPLS_GRE_ADD_DEL_TUNNEL, mpls_gre_add_del_tunnel)                     \
  _(MPLS_ETHERNET_ADD_DEL_TUNNEL, mpls_ethernet_add_del_tunnel)           \
  _(MPLS_ETHERNET_ADD_DEL_TUNNEL_2, mpls_ethernet_add_del_tunnel_2)       \
  _(MPLS_ADD_DEL_ENCAP, mpls_add_del_encap)                               \
  _(MPLS_ADD_DEL_DECAP, mpls_add_del_decap)                               \
  _(PROXY_ARP_ADD_DEL, proxy_arp_add_del)                                 \
  _(PROXY_ARP_INTFC_ENABLE_DISABLE, proxy_arp_intfc_enable_disable)       \
  _(IP_NEIGHBOR_ADD_DEL, ip_neighbor_add_del)                             \
  _(VNET_GET_SUMMARY_STATS, vnet_get_summary_stats)			\
  _(RESET_FIB, reset_fib)							\
  _(DHCP_PROXY_CONFIG,dhcp_proxy_config)					\
  _(DHCP_PROXY_CONFIG_2,dhcp_proxy_config_2)				\
  _(DHCP_PROXY_SET_VSS,dhcp_proxy_set_vss)                                \
  _(DHCP_CLIENT_CONFIG, dhcp_client_config)				\
  _(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)           \
  _(SW_INTERFACE_IP6_ENABLE_DISABLE, sw_interface_ip6_enable_disable )    \
  _(SW_INTERFACE_IP6_SET_LINK_LOCAL_ADDRESS, 				\
    sw_interface_ip6_set_link_local_address)                              \
  _(SW_INTERFACE_SET_UNNUMBERED, sw_interface_set_unnumbered)		\
  _(CREATE_LOOPBACK, create_loopback)					\
  _(CONTROL_PING, control_ping)                                           \
  _(NOPRINT_CONTROL_PING, noprint_control_ping)                           \
  _(CLI_REQUEST, cli_request)                                             \
  _(CLI_INBAND, cli_inband)						\
  _(SET_ARP_NEIGHBOR_LIMIT, set_arp_neighbor_limit)			\
  _(L2_PATCH_ADD_DEL, l2_patch_add_del)					\
  _(CLASSIFY_ADD_DEL_TABLE, classify_add_del_table)			\
  _(CLASSIFY_ADD_DEL_SESSION, classify_add_del_session)			\
  _(CLASSIFY_SET_INTERFACE_IP_TABLE, classify_set_interface_ip_table)     \
  _(CLASSIFY_SET_INTERFACE_L2_TABLES, classify_set_interface_l2_tables)   \
  _(GET_NODE_INDEX, get_node_index)                                       \
  _(ADD_NODE_NEXT, add_node_next)						\
  _(L2TPV3_CREATE_TUNNEL, l2tpv3_create_tunnel)                           \
  _(L2TPV3_SET_TUNNEL_COOKIES, l2tpv3_set_tunnel_cookies)                 \
  _(L2TPV3_INTERFACE_ENABLE_DISABLE, l2tpv3_interface_enable_disable)     \
  _(L2TPV3_SET_LOOKUP_KEY, l2tpv3_set_lookup_key)                         \
  _(SW_IF_L2TPV3_TUNNEL_DUMP, sw_if_l2tpv3_tunnel_dump)                   \
  _(VXLAN_ADD_DEL_TUNNEL, vxlan_add_del_tunnel)                           \
  _(VXLAN_TUNNEL_DUMP, vxlan_tunnel_dump)                                 \
  _(GRE_ADD_DEL_TUNNEL, gre_add_del_tunnel)                               \
  _(GRE_TUNNEL_DUMP, gre_tunnel_dump)                                     \
  _(L2_FIB_CLEAR_TABLE, l2_fib_clear_table)                               \
  _(L2_INTERFACE_EFP_FILTER, l2_interface_efp_filter)                     \
  _(L2_INTERFACE_VLAN_TAG_REWRITE, l2_interface_vlan_tag_rewrite)         \
  _(CREATE_VHOST_USER_IF, create_vhost_user_if)                           \
  _(MODIFY_VHOST_USER_IF, modify_vhost_user_if)                           \
  _(DELETE_VHOST_USER_IF, delete_vhost_user_if)                           \
  _(SW_INTERFACE_VHOST_USER_DUMP, sw_interface_vhost_user_dump)           \
  _(IP_ADDRESS_DUMP, ip_address_dump)                                     \
  _(IP_DUMP, ip_dump)                                                     \
  _(SW_INTERFACE_VHOST_USER_DETAILS, sw_interface_vhost_user_details)	\
  _(SHOW_VERSION, show_version)						\
  _(L2_FIB_TABLE_DUMP, l2_fib_table_dump)	                                \
  _(L2_FIB_TABLE_ENTRY, l2_fib_table_entry)                               \
  _(VXLAN_GPE_ADD_DEL_TUNNEL, vxlan_gpe_add_del_tunnel)                   \
  _(VXLAN_GPE_TUNNEL_DUMP, vxlan_gpe_tunnel_dump)                         \
  _(INTERFACE_NAME_RENUMBER, interface_name_renumber)			\
  _(WANT_IP4_ARP_EVENTS, want_ip4_arp_events)                             \
  _(WANT_IP6_ND_EVENTS, want_ip6_nd_events)                               \
  _(INPUT_ACL_SET_INTERFACE, input_acl_set_interface)                     \
  _(IPSEC_SPD_ADD_DEL, ipsec_spd_add_del)                                 \
  _(IPSEC_INTERFACE_ADD_DEL_SPD, ipsec_interface_add_del_spd)             \
  _(IPSEC_SPD_ADD_DEL_ENTRY, ipsec_spd_add_del_entry)                     \
  _(IPSEC_SAD_ADD_DEL_ENTRY, ipsec_sad_add_del_entry)                     \
  _(IPSEC_SA_SET_KEY, ipsec_sa_set_key)                                   \
  _(IKEV2_PROFILE_ADD_DEL, ikev2_profile_add_del)                         \
  _(IKEV2_PROFILE_SET_AUTH, ikev2_profile_set_auth)                       \
  _(IKEV2_PROFILE_SET_ID, ikev2_profile_set_id)                           \
  _(IKEV2_PROFILE_SET_TS, ikev2_profile_set_ts)                           \
  _(IKEV2_SET_LOCAL_KEY, ikev2_set_local_key)                             \
  _(DELETE_LOOPBACK, delete_loopback)                                     \
  _(BD_IP_MAC_ADD_DEL, bd_ip_mac_add_del)                                 \
  _(MAP_ADD_DOMAIN, map_add_domain)                                       \
  _(MAP_DEL_DOMAIN, map_del_domain)                                       \
  _(MAP_ADD_DEL_RULE, map_add_del_rule)                                   \
  _(MAP_DOMAIN_DUMP, map_domain_dump)                                     \
  _(MAP_RULE_DUMP, map_rule_dump)						\
  _(MAP_SUMMARY_STATS, map_summary_stats)					\
  _(COP_INTERFACE_ENABLE_DISABLE, cop_interface_enable_disable)		\
  _(COP_WHITELIST_ENABLE_DISABLE, cop_whitelist_enable_disable)		\
  _(GET_NODE_GRAPH, get_node_graph)                                       \
  _(SW_INTERFACE_CLEAR_STATS, sw_interface_clear_stats)                   \
  _(IOAM_ENABLE, ioam_enable)                                 \
  _(IOAM_DISABLE, ioam_disable)                                 \
  _(LISP_ADD_DEL_LOCATOR_SET, lisp_add_del_locator_set)                   \
  _(LISP_ADD_DEL_LOCATOR, lisp_add_del_locator)                           \
  _(LISP_ADD_DEL_LOCAL_EID, lisp_add_del_local_eid)                       \
  _(LISP_GPE_ADD_DEL_FWD_ENTRY, lisp_gpe_add_del_fwd_entry)               \
  _(LISP_ADD_DEL_MAP_RESOLVER, lisp_add_del_map_resolver)                 \
  _(LISP_GPE_ENABLE_DISABLE, lisp_gpe_enable_disable)                     \
  _(LISP_ENABLE_DISABLE, lisp_enable_disable)                             \
  _(LISP_GPE_ADD_DEL_IFACE, lisp_gpe_add_del_iface)                       \
  _(LISP_ADD_DEL_REMOTE_MAPPING, lisp_add_del_remote_mapping)             \
  _(LISP_ADD_DEL_ADJACENCY, lisp_add_del_adjacency)                       \
  _(LISP_PITR_SET_LOCATOR_SET, lisp_pitr_set_locator_set)                 \
  _(LISP_EID_TABLE_ADD_DEL_MAP, lisp_eid_table_add_del_map)               \
  _(LISP_LOCATOR_SET_DUMP, lisp_locator_set_dump)                         \
  _(LISP_LOCATOR_DUMP, lisp_locator_dump)                                 \
  _(LISP_EID_TABLE_DUMP, lisp_eid_table_dump)                             \
  _(LISP_GPE_TUNNEL_DUMP, lisp_gpe_tunnel_dump)                           \
  _(LISP_MAP_RESOLVER_DUMP, lisp_map_resolver_dump)                       \
  _(LISP_EID_TABLE_MAP_DUMP, lisp_eid_table_map_dump)                     \
  _(LISP_EID_TABLE_VNI_DUMP, lisp_eid_table_vni_dump)                     \
  _(SHOW_LISP_STATUS, show_lisp_status)                                   \
  _(LISP_ADD_DEL_MAP_REQUEST_ITR_RLOCS,                                   \
    lisp_add_del_map_request_itr_rlocs)                                   \
  _(LISP_GET_MAP_REQUEST_ITR_RLOCS, lisp_get_map_request_itr_rlocs)       \
  _(SHOW_LISP_PITR, show_lisp_pitr)                                       \
  _(SR_MULTICAST_MAP_ADD_DEL, sr_multicast_map_add_del)                   \
  _(AF_PACKET_CREATE, af_packet_create)                                   \
  _(AF_PACKET_DELETE, af_packet_delete)                                   \
  _(POLICER_ADD_DEL, policer_add_del)                                     \
  _(POLICER_DUMP, policer_dump)                                           \
  _(POLICER_CLASSIFY_SET_INTERFACE, policer_classify_set_interface)       \
  _(POLICER_CLASSIFY_DUMP, policer_classify_dump)                         \
  _(NETMAP_CREATE, netmap_create)                                         \
  _(NETMAP_DELETE, netmap_delete)                                         \
  _(MPLS_GRE_TUNNEL_DUMP, mpls_gre_tunnel_dump)                           \
  _(MPLS_GRE_TUNNEL_DETAILS, mpls_gre_tunnel_details)                     \
  _(MPLS_ETH_TUNNEL_DUMP, mpls_eth_tunnel_dump)                           \
  _(MPLS_ETH_TUNNEL_DETAILS, mpls_eth_tunnel_details)                     \
  _(MPLS_FIB_ENCAP_DUMP, mpls_fib_encap_dump)                             \
  _(MPLS_FIB_ENCAP_DETAILS, mpls_fib_encap_details)                       \
  _(MPLS_FIB_DECAP_DUMP, mpls_fib_decap_dump)                             \
  _(MPLS_FIB_DECAP_DETAILS, mpls_fib_decap_details)                       \
  _(CLASSIFY_TABLE_IDS,classify_table_ids)                                \
  _(CLASSIFY_TABLE_BY_INTERFACE, classify_table_by_interface)             \
  _(CLASSIFY_TABLE_INFO,classify_table_info)                              \
  _(CLASSIFY_SESSION_DUMP,classify_session_dump)                          \
  _(CLASSIFY_SESSION_DETAILS,classify_session_details)                    \
  _(SET_IPFIX_EXPORTER, set_ipfix_exporter)                               \
  _(IPFIX_EXPORTER_DUMP, ipfix_exporter_dump)                             \
  _(SET_IPFIX_CLASSIFY_STREAM, set_ipfix_classify_stream)                 \
  _(IPFIX_CLASSIFY_STREAM_DUMP, ipfix_classify_stream_dump)               \
  _(IPFIX_CLASSIFY_TABLE_ADD_DEL, ipfix_classify_table_add_del)           \
  _(IPFIX_CLASSIFY_TABLE_DUMP, ipfix_classify_table_dump)                 \
  _(GET_NEXT_INDEX, get_next_index)                                       \
  _(PG_CREATE_INTERFACE, pg_create_interface)                             \
  _(PG_CAPTURE, pg_capture)                                               \
  _(PG_ENABLE_DISABLE, pg_enable_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)                     \
  _(IPSEC_GRE_ADD_DEL_TUNNEL, ipsec_gre_add_del_tunnel)                   \
  _(IPSEC_GRE_TUNNEL_DUMP, ipsec_gre_tunnel_dump)                         \
  _(DELETE_SUBIF, delete_subif)
  
  #define QUOTE_(x) #x
  #define QUOTE(x) QUOTE_(x)
  
  #define foreach_registration_hash               \
  _(interface_events)                             \
  _(to_netconf_server)                            \
  _(from_netconf_server)                          \
  _(to_netconf_client)                            \
  _(from_netconf_client)                          \
  _(oam_events)
  
  typedef enum
  {
    RESOLVE_IP4_ADD_DEL_ROUTE = 1,
    RESOLVE_IP6_ADD_DEL_ROUTE,
    RESOLVE_MPLS_ETHERNET_ADD_DEL,
  } resolve_t;
  
  typedef struct
  {
    u8 resolve_type;
    union
    {
      vl_api_ip_add_del_route_t r;
      vl_api_mpls_ethernet_add_del_tunnel_2_t t;
    };
  } pending_route_t;
  
  typedef struct
  {
  
  #define _(a) uword *a##_registration_hash;              \
      vpe_client_registration_t * a##_registrations;
    foreach_registration_hash
  #undef _
      /* notifications happen really early in the game */
    u8 link_state_process_up;
  
    /* ip4 and ip6 pending route adds */
    pending_route_t *pending_routes;
  
    /* ip4 arp event registration pool */
    vl_api_ip4_arp_event_t *arp_events;
  
    /* ip6 nd event registration pool */
    vl_api_ip6_nd_event_t *nd_events;
  
    /* convenience */
    vlib_main_t *vlib_main;
    vnet_main_t *vnet_main;
  } vpe_api_main_t;
  
  static vlib_node_registration_t vpe_resolver_process_node;
  static vpe_api_main_t vpe_api_main;
  
  static void send_sw_interface_flags (vpe_api_main_t * am,
  				     unix_shared_memory_queue_t * q,
  				     vnet_sw_interface_t * swif);
  static void send_sw_interface_flags_deleted (vpe_api_main_t * am,
  					     unix_shared_memory_queue_t * q,
  					     u32 sw_if_index);
  
  static int arp_change_delete_callback (u32 pool_index, u8 * notused);
  static int nd_change_delete_callback (u32 pool_index, u8 * notused);
  
  
  /* Clean up all registrations belonging to the indicated client */
  int
  vl_api_memclnt_delete_callback (u32 client_index)
  {
    vpe_api_main_t *vam = &vpe_api_main;
    vpe_client_registration_t *rp;
    uword *p;
    int stats_memclnt_delete_callback (u32 client_index);
  
    stats_memclnt_delete_callback (client_index);
  
  #define _(a)                                                    \
      p = hash_get (vam->a##_registration_hash, client_index);    \
      if (p) {                                                    \
          rp = pool_elt_at_index (vam->a##_registrations, p[0]);  \
          pool_put (vam->a##_registrations, rp);                  \
          hash_unset (vam->a##_registration_hash, client_index);  \
      }
    foreach_registration_hash;
  #undef _
    return 0;
  }
  
  #define API_LINK_STATE_EVENT 1
  #define API_ADMIN_UP_DOWN_EVENT 2
  
  static int
  event_data_cmp (void *a1, void *a2)
  {
    uword *e1 = a1;
    uword *e2 = a2;
  
    return (word) e1[0] - (word) e2[0];
  }
  
  static uword
  link_state_process (vlib_main_t * vm,
  		    vlib_node_runtime_t * rt, vlib_frame_t * f)
  {
    vpe_api_main_t *vam = &vpe_api_main;
    vnet_main_t *vnm = vam->vnet_main;
    vnet_sw_interface_t *swif;
    uword *event_data = 0;
    vpe_client_registration_t *reg;
    int i;
    u32 prev_sw_if_index;
    unix_shared_memory_queue_t *q;
  
    vam->link_state_process_up = 1;
  
    while (1)
      {
        vlib_process_wait_for_event (vm);
  
        /* Unified list of changed link or admin state sw_if_indices */
        vlib_process_get_events_with_type
  	(vm, &event_data, API_LINK_STATE_EVENT);
        vlib_process_get_events_with_type
  	(vm, &event_data, API_ADMIN_UP_DOWN_EVENT);
  
        /* Sort, so we can eliminate duplicates */
        vec_sort_with_function (event_data, event_data_cmp);
  
        prev_sw_if_index = ~0;
  
        for (i = 0; i < vec_len (event_data); i++)
  	{
  	  /* Only one message per swif */
  	  if (prev_sw_if_index == event_data[i])
  	    continue;
  	  prev_sw_if_index = event_data[i];
  
            /* *INDENT-OFF* */
            pool_foreach(reg, vam->interface_events_registrations,
            ({
              q = vl_api_client_index_to_input_queue (reg->client_index);
              if (q)
                {
                  /* sw_interface may be deleted already */
                  if (!pool_is_free_index (vnm->interface_main.sw_interfaces,
                                           event_data[i]))
                    {
                      swif = vnet_get_sw_interface (vnm, event_data[i]);
                      send_sw_interface_flags (vam, q, swif);
                    }
                }
            }));
            /* *INDENT-ON* */
  	}
        vec_reset_length (event_data);
      }
  
    return 0;
  }
  
  static clib_error_t *link_up_down_function (vnet_main_t * vm, u32 hw_if_index,
  					    u32 flags);
  static clib_error_t *admin_up_down_function (vnet_main_t * vm,
  					     u32 hw_if_index, u32 flags);
  
  /* *INDENT-OFF* */
  VLIB_REGISTER_NODE (link_state_process_node,static) = {
    .function = link_state_process,
    .type = VLIB_NODE_TYPE_PROCESS,
    .name = "vpe-link-state-process",
  };
  /* *INDENT-ON* */
  
  VNET_SW_INTERFACE_ADMIN_UP_DOWN_FUNCTION (admin_up_down_function);
  VNET_HW_INTERFACE_LINK_UP_DOWN_FUNCTION (link_up_down_function);
  
  static clib_error_t *
  link_up_down_function (vnet_main_t * vm, u32 hw_if_index, u32 flags)
  {
    vpe_api_main_t *vam = &vpe_api_main;
    vnet_hw_interface_t *hi = vnet_get_hw_interface (vm, hw_if_index);
  
    if (vam->link_state_process_up)
      vlib_process_signal_event (vam->vlib_main,
  			       link_state_process_node.index,
  			       API_LINK_STATE_EVENT, hi->sw_if_index);
    return 0;
  }
  
  static clib_error_t *
  admin_up_down_function (vnet_main_t * vm, u32 sw_if_index, u32 flags)
  {
    vpe_api_main_t *vam = &vpe_api_main;
  
    /*
     * Note: it's perfectly fair to set a subif admin up / admin down.
     * Note the subtle distinction between this routine and the previous
     * routine.
     */
    if (vam->link_state_process_up)
      vlib_process_signal_event (vam->vlib_main,
  			       link_state_process_node.index,
  			       API_ADMIN_UP_DOWN_EVENT, sw_if_index);
    return 0;
  }
  
  #define pub_sub_handler(lca,UCA)                                        \
  static void vl_api_want_##lca##_t_handler (                             \
      vl_api_want_##lca##_t *mp)                                          \
  {                                                                       \
      vpe_api_main_t *vam = &vpe_api_main;                                \
      vpe_client_registration_t *rp;                                      \
      vl_api_want_##lca##_reply_t *rmp;                                   \
      uword *p;                                                           \
      i32 rv = 0;                                                         \
                                                                          \
      p = hash_get (vam->lca##_registration_hash, mp->client_index);      \
      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 (vam->lca##_registrations, p[0]);    \
              pool_put (vam->lca##_registrations, rp);                    \
              hash_unset (vam->lca##_registration_hash,                   \
                  mp->client_index);                                      \
              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 (vam->lca##_registrations, rp);                            \
      rp->client_index = mp->client_index;                                \
      rp->client_pid = mp->pid;                                           \
      hash_set (vam->lca##_registration_hash, rp->client_index,           \
                rp - vam->lca##_registrations);                           \
                                                                          \
  reply:                                                                  \
      REPLY_MACRO (VL_API_WANT_##UCA##_REPLY);                            \
  }
  
  /* *INDENT-OFF* */
  pub_sub_handler (interface_events, INTERFACE_EVENTS)
  pub_sub_handler (oam_events, OAM_EVENTS)
  /* *INDENT-ON* */
  
  #define RESOLUTION_EVENT 1
  #define RESOLUTION_PENDING_EVENT 2
  #define IP4_ARP_EVENT 3
  #define IP6_ND_EVENT 4
  
  static int ip4_add_del_route_t_handler (vl_api_ip_add_del_route_t * mp);
  
  static int ip6_add_del_route_t_handler (vl_api_ip_add_del_route_t * mp);
  
  static int mpls_ethernet_add_del_tunnel_2_t_handler
    (vl_api_mpls_ethernet_add_del_tunnel_2_t * mp);
  
  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;
    unix_shared_memory_queue_t *q;
  
    /* 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);
  
    q = vl_api_client_index_to_input_queue (event->client_index);
    if (!q)
      {
        (void) vnet_add_del_ip4_arp_change_event
  	(vnm, arp_change_delete_callback,
  	 event->pid, &event->address,
  	 vpe_resolver_process_node.index, IP4_ARP_EVENT,
  	 ~0 /* pool index, notused */ , 0 /* is_add */ );
        return;
      }
  
    if (q->cursize < q->maxsize)
      {
        mp = vl_msg_api_alloc (sizeof (*mp));
        clib_memcpy (mp, event, sizeof (*mp));
        vl_msg_api_send_shmem (q, (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);
  	}
      }
  }
  
  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;
    unix_shared_memory_queue_t *q;
  
    /* 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);
  
    q = vl_api_client_index_to_input_queue (event->client_index);
    if (!q)
      {
        (void) vnet_add_del_ip6_nd_change_event
  	(vnm, nd_change_delete_callback,
  	 event->pid, &event->address,
  	 vpe_resolver_process_node.index, IP6_ND_EVENT,
  	 ~0 /* pool index, notused */ , 0 /* is_add */ );
        return;
      }
  
    if (q->cursize < q->maxsize)
      {
        mp = vl_msg_api_alloc (sizeof (*mp));
        clib_memcpy (mp, event, sizeof (*mp));
        vl_msg_api_send_shmem (q, (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)
  {
    uword event_type;
    uword *event_data = 0;
    f64 timeout = 100.0;
    vpe_api_main_t *vam = &vpe_api_main;
    pending_route_t *pr;
    vl_api_ip_add_del_route_t *adr;
    vl_api_mpls_ethernet_add_del_tunnel_2_t *pme;
    u32 *resolution_failures = 0;
    int i, rv;
    clib_error_t *e;
  
    while (1)
      {
        vlib_process_wait_for_event_or_clock (vm, timeout);
  
        event_type = vlib_process_get_events (vm, &event_data);
  
        switch (event_type)
  	{
  	case RESOLUTION_PENDING_EVENT:
  	  timeout = 1.0;
  	  break;
  
  	case RESOLUTION_EVENT:
  	  for (i = 0; i < vec_len (event_data); i++)
  	    {
  	      /*
  	       * Resolution events can occur long after the
  	       * original request has timed out. $$$ add a cancel
  	       * mechanism..
  	       */
  	      if (pool_is_free_index (vam->pending_routes, event_data[i]))
  		continue;
  
  	      pr = pool_elt_at_index (vam->pending_routes, event_data[i]);
  	      adr = &pr->r;
  	      pme = &pr->t;
  
  	      switch (pr->resolve_type)
  		{
  		case RESOLVE_IP4_ADD_DEL_ROUTE:
  		  rv = ip4_add_del_route_t_handler (adr);
  		  clib_warning ("resolver: add %U/%d via %U %s",
  				format_ip4_address,
  				(ip4_address_t *) & (adr->dst_address),
  				adr->dst_address_length,
  				format_ip4_address,
  				(ip4_address_t *) & (adr->next_hop_address),
  				(rv >= 0) ? "succeeded" : "failed");
  		  break;
  
  		case RESOLVE_IP6_ADD_DEL_ROUTE:
  		  rv = ip6_add_del_route_t_handler (adr);
  		  clib_warning ("resolver: add %U/%d via %U %s",
  				format_ip6_address,
  				(ip6_address_t *) & (adr->dst_address),
  				adr->dst_address_length,
  				format_ip6_address,
  				(ip6_address_t *) & (adr->next_hop_address),
  				(rv >= 0) ? "succeeded" : "failed");
  		  break;
  
  		case RESOLVE_MPLS_ETHERNET_ADD_DEL:
  		  rv = mpls_ethernet_add_del_tunnel_2_t_handler (pme);
  		  clib_warning ("resolver: add mpls-o-e via %U %s",
  				format_ip4_address,
  				(ip4_address_t *) &
  				(pme->next_hop_ip4_address_in_outer_vrf),
  				(rv >= 0) ? "succeeded" : "failed");
  		  break;
  
  		default:
  		  clib_warning ("resolver: BOGUS TYPE %d", pr->resolve_type);
  		}
  	      pool_put (vam->pending_routes, pr);
  	    }
  	  break;
  
  	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, retry pending resolutions */
            /* *INDENT-OFF* */
            pool_foreach (pr, vam->pending_routes,
            ({
              int is_adr = 1;
              adr = &pr->r;
              pme = &pr->t;
  
              /* May fail, e.g. due to interface down */
              switch (pr->resolve_type)
                {
                case RESOLVE_IP4_ADD_DEL_ROUTE:
                  e = ip4_probe_neighbor
                    (vm, (ip4_address_t *)&(adr->next_hop_address),
                     ntohl(adr->next_hop_sw_if_index));
                  break;
  
                case RESOLVE_IP6_ADD_DEL_ROUTE:
                  e = ip6_probe_neighbor
                    (vm, (ip6_address_t *)&(adr->next_hop_address),
                     ntohl(adr->next_hop_sw_if_index));
                  break;
  
                case RESOLVE_MPLS_ETHERNET_ADD_DEL:
                  is_adr = 0;
                  e = ip4_probe_neighbor
                    (vm,
                     (ip4_address_t *)&(pme->next_hop_ip4_address_in_outer_vrf),
                     pme->resolve_opaque);
                  break;
  
                default:
                  e = clib_error_return (0, "resolver: BOGUS TYPE %d",
                                         pr->resolve_type);
                }
              if (e)
                {
                  clib_error_report (e);
                  if (is_adr)
                    adr->resolve_attempts = 1;
                  else
                    pme->resolve_attempts = 1;
                }
              if (is_adr)
                {
                  adr->resolve_attempts -= 1;
                  if (adr->resolve_attempts == 0)
                    vec_add1 (resolution_failures,
                              pr - vam->pending_routes);
                }
              else
                {
                  pme->resolve_attempts -= 1;
                  if (pme->resolve_attempts == 0)
                    vec_add1 (resolution_failures,
                              pr - vam->pending_routes);
                }
            }));
            /* *INDENT-ON* */
  	  for (i = 0; i < vec_len (resolution_failures); i++)
  	    {
  	      pr = pool_elt_at_index (vam->pending_routes,
  				      resolution_failures[i]);
  	      adr = &pr->r;
  	      pme = &pr->t;
  
  	      switch (pr->resolve_type)
  		{
  		case RESOLVE_IP4_ADD_DEL_ROUTE:
  		  clib_warning ("resolver: add %U/%d via %U retry failure",
  				format_ip4_address,
  				(ip4_address_t *) & (adr->dst_address),
  				adr->dst_address_length,
  				format_ip4_address,
  				(ip4_address_t *) & (adr->next_hop_address));
  		  break;
  
  		case RESOLVE_IP6_ADD_DEL_ROUTE:
  		  clib_warning ("resolver: add %U/%d via %U retry failure",
  				format_ip6_address,
  				(ip6_address_t *) & (adr->dst_address),
  				adr->dst_address_length,
  				format_ip6_address,
  				(ip6_address_t *) & (adr->next_hop_address));
  		  break;
  
  		case RESOLVE_MPLS_ETHERNET_ADD_DEL:
  		  clib_warning ("resolver: add mpls-o-e via %U retry failure",
  				format_ip4_address,
  				(ip4_address_t *) &
  				(pme->next_hop_ip4_address_in_outer_vrf));
  		  break;
  
  		default:
  		  clib_warning ("BUG");
  		}
  	      pool_put (vam->pending_routes, pr);
  	    }
  	  vec_reset_length (resolution_failures);
  	  break;
  	}
        if (pool_elts (vam->pending_routes) == 0)
  	timeout = 100.0;
        vec_reset_length (event_data);
      }
    return 0;			/* or not */
  }
  
  /* *INDENT-OFF* */
  VLIB_REGISTER_NODE (vpe_resolver_process_node,static) = {
    .function = resolver_process,
    .type = VLIB_NODE_TYPE_PROCESS,
    .name = "vpe-route-resolver-process",
  };
  /* *INDENT-ON* */
  
  static int
  ip4_add_del_route_t_handler (vl_api_ip_add_del_route_t * mp)
  {
    ip4_main_t *im = &ip4_main;
    ip_lookup_main_t *lm = &im->lookup_main;
    vnet_classify_main_t *cm = &vnet_classify_main;
    stats_main_t *sm = &stats_main;
    ip4_add_del_route_args_t a;
    ip4_address_t next_hop_address;
    u32 fib_index;
    vpe_api_main_t *vam = &vpe_api_main;
    vnet_main_t *vnm = vam->vnet_main;
    vlib_main_t *vm = vlib_get_main ();
    pending_route_t *pr;
    vl_api_ip_add_del_route_t *adr;
    uword *p;
    clib_error_t *e;
    u32 ai;
    ip_adjacency_t *adj;
  
    p = hash_get (im->fib_index_by_table_id, ntohl (mp->vrf_id));
    if (!p)
      {
        if (mp->create_vrf_if_needed)
  	{
  	  ip4_fib_t *f;
  	  f = find_ip4_fib_by_table_index_or_id (im, ntohl (mp->vrf_id),
  						 0 /* flags */ );
  	  fib_index = f->index;
  	}
        else
  	{
  	  /* No such VRF, and we weren't asked to create one */
  	  return VNET_API_ERROR_NO_SUCH_FIB;
  	}
      }
    else
      {
        fib_index = p[0];
      }
  
    if (~0 != mp->next_hop_sw_if_index &&
        pool_is_free_index (vnm->interface_main.sw_interfaces,
  			  ntohl (mp->next_hop_sw_if_index)))
      return VNET_API_ERROR_NO_MATCHING_INTERFACE;
  
    clib_memcpy (next_hop_address.data, mp->next_hop_address,
  	       sizeof (next_hop_address.data));
  
    /* Arp for the next_hop if necessary */
    if (mp->is_add && mp->resolve_if_needed && ~0 != mp->next_hop_sw_if_index)
      {
        u32 lookup_result;
        ip_adjacency_t *adj;
  
        lookup_result = ip4_fib_lookup_with_table
  	(im, fib_index, &next_hop_address, 1 /* disable default route */ );
  
        adj = ip_get_adjacency (lm, lookup_result);
  
        if (adj->lookup_next_index == IP_LOOKUP_NEXT_ARP)
  	{
  	  pool_get (vam->pending_routes, pr);
  	  pr->resolve_type = RESOLVE_IP4_ADD_DEL_ROUTE;
  	  adr = &pr->r;
  	  clib_memcpy (adr, mp, sizeof (*adr));
  	  /* recursion block, "just in case" */
  	  adr->resolve_if_needed = 0;
  	  adr->resolve_attempts = ntohl (mp->resolve_attempts);
  	  vnet_register_ip4_arp_resolution_event
  	    (vnm, &next_hop_address, vpe_resolver_process_node.index,
  	     RESOLUTION_EVENT, pr - vam->pending_routes);
  
  	  vlib_process_signal_event
  	    (vm, vpe_resolver_process_node.index,
  	     RESOLUTION_PENDING_EVENT, 0 /* data */ );
  
  	  /* The interface may be down, etc. */
  	  e = ip4_probe_neighbor
  	    (vm, (ip4_address_t *) & (mp->next_hop_address),
  	     ntohl (mp->next_hop_sw_if_index));
  
  	  if (e)
  	    clib_error_report (e);
  
  	  return VNET_API_ERROR_IN_PROGRESS;
  	}
      }
  
    if (mp->is_multipath)
      {
        u32 flags;
  
        dslock (sm, 1 /* release hint */ , 10 /* tag */ );
  
        if (mp->is_add)
  	flags = IP4_ROUTE_FLAG_ADD;
        else
  	flags = IP4_ROUTE_FLAG_DEL;
  
        if (mp->not_last)
  	flags |= IP4_ROUTE_FLAG_NOT_LAST_IN_GROUP;
  
        ip4_add_del_route_next_hop (im, flags,
  				  (ip4_address_t *) mp->dst_address,
  				  (u32) mp->dst_address_length,
  				  (ip4_address_t *) mp->next_hop_address,
  				  ntohl (mp->next_hop_sw_if_index),
  				  (u32) mp->next_hop_weight,
  				  ~0 /* adj_index */ ,
  				  fib_index);
        dsunlock (sm);
        return 0;
      }
  
    memset (&a, 0, sizeof (a));
    clib_memcpy (a.dst_address.data, mp->dst_address,
  	       sizeof (a.dst_address.data));
  
    a.dst_address_length = mp->dst_address_length;
  
    a.flags = (mp->is_add ? IP4_ROUTE_FLAG_ADD : IP4_ROUTE_FLAG_DEL);
    a.flags |= IP4_ROUTE_FLAG_FIB_INDEX;
    a.table_index_or_table_id = fib_index;
    a.add_adj = 0;
    a.n_add_adj = 0;
  
    if (mp->not_last)
      a.flags |= IP4_ROUTE_FLAG_NOT_LAST_IN_GROUP;
  
    dslock (sm, 1 /* release hint */ , 2 /* tag */ );
  
    if (mp->is_add)
      {
        if (mp->is_drop)
  	ai = lm->drop_adj_index;
        else if (mp->is_local)
  	ai = lm->local_adj_index;
        else if (mp->is_classify)
  	{
  	  if (pool_is_free_index
  	      (cm->tables, ntohl (mp->classify_table_index)))
  	    {
  	      dsunlock (sm);
  	      return VNET_API_ERROR_NO_SUCH_TABLE;
  	    }
  	  adj = ip_add_adjacency (lm,
  				  /* template */ 0,
  				  /* block size */ 1,
  				  &ai);
  
  	  adj->lookup_next_index = IP_LOOKUP_NEXT_CLASSIFY;
  	  adj->classify.table_index = ntohl (mp->classify_table_index);
  	}
        else if (mp->lookup_in_vrf)
  	{
  	  p = hash_get (im->fib_index_by_table_id, ntohl (mp->lookup_in_vrf));
  	  if (p)
  	    {
  	      adj = ip_add_adjacency (lm,
  				      /* template */ 0,
  				      /* block size */ 1,
  				      &ai);
  	      adj->explicit_fib_index = p[0];
  	    }
  	  else
  	    {
  	      dsunlock (sm);
  	      return VNET_API_ERROR_NO_SUCH_INNER_FIB;
  	    }
  	}
        else
  	ai = ip4_route_get_next_hop_adj (im,
  					 fib_index,
  					 &next_hop_address,
  					 ntohl (mp->next_hop_sw_if_index),
  					 fib_index);
  
        if (ai == lm->miss_adj_index)
  	{
  	  dsunlock (sm);
  	  return VNET_API_ERROR_NO_SUCH_INNER_FIB;
  	}
      }
    else
      {
        ip_adjacency_t *adj;
        int disable_default_route = 1;
  
        /* Trying to delete the default route? */
        if (a.dst_address.as_u32 == 0 && a.dst_address_length == 0)
  	disable_default_route = 0;
  
        ai = ip4_fib_lookup_with_table
  	(im, fib_index, &a.dst_address, disable_default_route);
        if (ai == lm->miss_adj_index)
  	{
  	  dsunlock (sm);
  	  return VNET_API_ERROR_UNKNOWN_DESTINATION;
  	}
  
        adj = ip_get_adjacency (lm, ai);
        if (adj->lookup_next_index == IP_LOOKUP_NEXT_ARP)
  	{
  	  dsunlock (sm);
  	  return VNET_API_ERROR_ADDRESS_MATCHES_INTERFACE_ADDRESS;
  	}
      }
  
    a.adj_index = ai;
    ip4_add_del_route (im, &a);
  
    dsunlock (sm);
    return 0;
  }
  
  static int
  ip6_add_del_route_t_handler (vl_api_ip_add_del_route_t * mp)
  {
    ip6_main_t *im = &ip6_main;
    ip_lookup_main_t *lm = &im->lookup_main;
    vnet_main_t *vnm = vnet_get_main ();
    vlib_main_t *vm = vlib_get_main ();
    vpe_api_main_t *vam = &vpe_api_main;
    stats_main_t *sm = &stats_main;
    ip6_add_del_route_args_t a;
    ip6_address_t next_hop_address;
    pending_route_t *pr;
    vl_api_ip_add_del_route_t *adr;
  
    u32 fib_index;
    uword *p;
    clib_error_t *e;
    ip_adjacency_t *adj = 0;
    u32 ai;
  
    p = hash_get (im->fib_index_by_table_id, ntohl (mp->vrf_id));
  
    if (!p)
      {
        if (mp->create_vrf_if_needed)
  	{
  	  ip6_fib_t *f;
  	  f = find_ip6_fib_by_table_index_or_id (im, ntohl (mp->vrf_id),
  						 0 /* flags */ );
  	  fib_index = f->index;
  	}
        else
  	{
  	  /* No such VRF, and we weren't asked to create one */
  	  return VNET_API_ERROR_NO_SUCH_FIB;
  	}
      }
    else
      {
        fib_index = p[0];
      }
  
    if (~0 != mp->next_hop_sw_if_index &&
        pool_is_free_index (vnm->interface_main.sw_interfaces,
  			  ntohl (mp->next_hop_sw_if_index)))
      return VNET_API_ERROR_NO_MATCHING_INTERFACE;
  
    clib_memcpy (next_hop_address.as_u8, mp->next_hop_address,
  	       sizeof (next_hop_address.as_u8));
  
    /* Arp for the next_hop if necessary */
    if (mp->is_add && mp->resolve_if_needed && ~0 != mp->next_hop_sw_if_index)
      {
        u32 lookup_result;
        ip_adjacency_t *adj;
  
        lookup_result = ip6_fib_lookup_with_table
  	(im, fib_index, &next_hop_address);
  
        adj = ip_get_adjacency (lm, lookup_result);
  
        if (adj->lookup_next_index == IP_LOOKUP_NEXT_ARP)
  	{
  	  pool_get (vam->pending_routes, pr);
  	  adr = &pr->r;
  	  pr->resolve_type = RESOLVE_IP6_ADD_DEL_ROUTE;
  	  clib_memcpy (adr, mp, sizeof (*adr));
  	  /* recursion block, "just in case" */
  	  adr->resolve_if_needed = 0;
  	  adr->resolve_attempts = ntohl (mp->resolve_attempts);
  	  vnet_register_ip6_neighbor_resolution_event
  	    (vnm, &next_hop_address, vpe_resolver_process_node.index,
  	     RESOLUTION_EVENT, pr - vam->pending_routes);
  
  	  vlib_process_signal_event
  	    (vm, vpe_resolver_process_node.index,
  	     RESOLUTION_PENDING_EVENT, 0 /* data */ );
  
  	  /* The interface may be down, etc. */
  	  e = ip6_probe_neighbor
  	    (vm, (ip6_address_t *) & (mp->next_hop_address),
  	     ntohl (mp->next_hop_sw_if_index));
  
  	  if (e)
  	    clib_error_report (e);
  
  	  return VNET_API_ERROR_IN_PROGRESS;
  	}
      }
  
    if (mp->is_multipath)
      {
        u32 flags;
  
        dslock (sm, 1 /* release hint */ , 11 /* tag */ );
  
        if (mp->is_add)
  	flags = IP6_ROUTE_FLAG_ADD;
        else
  	flags = IP6_ROUTE_FLAG_DEL;
  
        if (mp->not_last)
  	flags |= IP6_ROUTE_FLAG_NOT_LAST_IN_GROUP;
  
        ip6_add_del_route_next_hop (im, flags,
  				  (ip6_address_t *) mp->dst_address,
  				  (u32) mp->dst_address_length,
  				  (ip6_address_t *) mp->next_hop_address,
  				  ntohl (mp->next_hop_sw_if_index),
  				  (u32) mp->next_hop_weight,
  				  ~0 /* adj_index */ ,
  				  fib_index);
        dsunlock (sm);
        return 0;
      }
  
    memset (&a, 0, sizeof (a));
    clib_memcpy (a.dst_address.as_u8, mp->dst_address,
  	       sizeof (a.dst_address.as_u8));
  
    a.dst_address_length = mp->dst_address_length;
  
    a.flags = (mp->is_add ? IP6_ROUTE_FLAG_ADD : IP6_ROUTE_FLAG_DEL);
    a.flags |= IP6_ROUTE_FLAG_FIB_INDEX;
    a.table_index_or_table_id = fib_index;
    a.add_adj = 0;
    a.n_add_adj = 0;
  
    if (mp->not_last)
      a.flags |= IP6_ROUTE_FLAG_NOT_LAST_IN_GROUP;
  
    dslock (sm, 1 /* release hint */ , 3 /* tag */ );
  
    if (mp->is_add)
      {
        if (mp->is_drop)
  	ai = lm->drop_adj_index;
        else if (mp->is_local)
  	ai = lm->local_adj_index;
        else if (mp->lookup_in_vrf)
  	{
  	  p = hash_get (im->fib_index_by_table_id, ntohl (mp->lookup_in_vrf));
  	  if (p)
  	    {
  	      adj = ip_add_adjacency (lm,
  				      /* template */ 0,
  				      /* block size */ 1,
  				      &ai);
  	      adj->explicit_fib_index = p[0];
  	    }
  	  else
  	    {
  	      dsunlock (sm);
  	      return VNET_API_ERROR_NO_SUCH_INNER_FIB;
  	    }
  	}
        else
  	ai = ip6_route_get_next_hop_adj (im,
  					 fib_index,
  					 &next_hop_address,
  					 ntohl (mp->next_hop_sw_if_index),
  					 fib_index);
        if (ai == lm->miss_adj_index)
  	{
  	  dsunlock (sm);
  	  return VNET_API_ERROR_NEXT_HOP_NOT_IN_FIB;
  	}
      }
    else
      {
        ip_adjacency_t *adj;
  
        ai = ip6_fib_lookup_with_table (im, fib_index, &a.dst_address);
        if (ai == lm->miss_adj_index)
  	{
  	  dsunlock (sm);
  	  return VNET_API_ERROR_UNKNOWN_DESTINATION;
  	}
        adj = ip_get_adjacency (lm, ai);
        if (adj->lookup_next_index == IP_LOOKUP_NEXT_ARP)
  	{
  	  dsunlock (sm);
  	  return VNET_API_ERROR_ADDRESS_MATCHES_INTERFACE_ADDRESS;
  	}
      }
  
    a.adj_index = ai;
    ip6_add_del_route (im, &a);
  
    dsunlock (sm);
    return 0;
  }
  
  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;
    int rv;
    vnet_main_t *vnm = vnet_get_main ();
  
    vnm->api_errno = 0;
  
    if (mp->is_ipv6)
      rv = ip6_add_del_route_t_handler (mp);
    else
      rv = ip4_add_del_route_t_handler (mp);
  
    rv = (rv == 0) ? vnm->api_errno : rv;
  
    REPLY_MACRO (VL_API_IP_ADD_DEL_ROUTE_REPLY);
  }
  
  void
  api_config_default_ip_route (u8 is_ipv6, u8 is_add, u32 vrf_id,
  			     u32 sw_if_index, u8 * next_hop_addr)
  {
    vl_api_ip_add_del_route_t mp;
    int rv;
  
    memset (&mp, 0, sizeof (vl_api_ip_add_del_route_t));
  
    /*
     * Configure default IP route:
     *  - ip route add 0.0.0.0/1 via <GW IP>
     *  - ip route add 128.0.0.0/1 via <GW IP>
     */
    mp.next_hop_sw_if_index = ntohl (sw_if_index);
    mp.vrf_id = vrf_id;
    mp.resolve_attempts = ~0;
    mp.resolve_if_needed = 1;
    mp.is_add = is_add;
    mp.is_ipv6 = is_ipv6;
    mp.next_hop_weight = 1;
  
    clib_memcpy (&mp.next_hop_address[0], next_hop_addr, 16);
  
    if (is_ipv6)
      rv = ip6_add_del_route_t_handler (&mp);
    else
      {
        mp.dst_address_length = 1;
  
        mp.dst_address[0] = 0;
        rv = ip4_add_del_route_t_handler (&mp);
  
        mp.dst_address[0] = 128;
        rv |= ip4_add_del_route_t_handler (&mp);
      }
  
    if (rv)
      clib_error_return (0, "failed to config default IP route");
  
  }
  
  static void
    vl_api_sw_interface_add_del_address_t_handler
    (vl_api_sw_interface_add_del_address_t * mp)
  {
    vlib_main_t *vm = vlib_get_main ();
    vl_api_sw_interface_add_del_address_reply_t *rmp;
    int rv = 0;
    u32 is_del;
  
    VALIDATE_SW_IF_INDEX (mp);
  
    is_del = mp->is_add == 0;
  
    if (mp->del_all)
      ip_del_all_interface_addresses (vm, ntohl (mp->sw_if_index));
    else if (mp->is_ipv6)
      ip6_add_del_interface_address (vm, ntohl (mp->sw_if_index),
  				   (void *) mp->address,
  				   mp->address_length, is_del);
    else
      ip4_add_del_interface_address (vm, ntohl (mp->sw_if_index),
  				   (void *) mp->address,
  				   mp->address_length, is_del);
  
    BAD_SW_IF_INDEX_LABEL;
  
    REPLY_MACRO (VL_API_SW_INTERFACE_ADD_DEL_ADDRESS_REPLY);
  }
  
  static void
  vl_api_sw_interface_set_table_t_handler (vl_api_sw_interface_set_table_t * mp)
  {
    int rv = 0;
    u32 table_id = ntohl (mp->vrf_id);
    u32 sw_if_index = ntohl (mp->sw_if_index);
    vl_api_sw_interface_set_table_reply_t *rmp;
    stats_main_t *sm = &stats_main;
  
    VALIDATE_SW_IF_INDEX (mp);
  
    dslock (sm, 1 /* release hint */ , 4 /* tag */ );
  
    if (mp->is_ipv6)
      {
        ip6_main_t *im = &ip6_main;
        ip6_fib_t *fib = find_ip6_fib_by_table_index_or_id (im, table_id,
  							  IP6_ROUTE_FLAG_TABLE_ID);
        if (fib)
  	{
  	  vec_validate (im->fib_index_by_sw_if_index, sw_if_index);
  	  im->fib_index_by_sw_if_index[sw_if_index] = fib->index;
  	}
        else
  	{
  	  rv = VNET_API_ERROR_NO_SUCH_FIB;
  	}
      }
    else
      {
        ip4_main_t *im = &ip4_main;
        ip4_fib_t *fib = find_ip4_fib_by_table_index_or_id
  	(im, table_id, IP4_ROUTE_FLAG_TABLE_ID);
  
        /* Truthfully this can't fail */
        if (fib)
  	{
  	  vec_validate (im->fib_index_by_sw_if_index, sw_if_index);
  	  im->fib_index_by_sw_if_index[sw_if_index] = fib->index;
  	}
        else
  	{
  	  rv = VNET_API_ERROR_NO_SUCH_FIB;
  	}
      }
    dsunlock (sm);
  
    BAD_SW_IF_INDEX_LABEL;
  
    REPLY_MACRO (VL_API_SW_INTERFACE_SET_TABLE_REPLY);
  }
  
  static void
  vl_api_sw_interface_set_vpath_t_handler (vl_api_sw_interface_set_vpath_t * mp)
  {
    vlib_main_t *vm = vlib_get_main ();
    ip4_main_t *im4 = &ip4_main;
    ip6_main_t *im6 = &ip6_main;
    vl_api_sw_interface_set_vpath_reply_t *rmp;
    int rv = 0;
    u32 ci;
    u32 sw_if_index = ntohl (mp->sw_if_index);
    ip4_main_t *ip4m = &ip4_main;
    ip6_main_t *ip6m = &ip6_main;
    ip_lookup_main_t *ip4lm = &ip4m->lookup_main;
    ip_lookup_main_t *ip6lm = &ip6m->lookup_main;
    ip_config_main_t *rx_cm4u =
      &ip4lm->feature_config_mains[VNET_IP_RX_UNICAST_FEAT];
    ip_config_main_t *rx_cm4m =
      &ip4lm->feature_config_mains[VNET_IP_RX_MULTICAST_FEAT];
    ip_config_main_t *rx_cm6u =
      &ip6lm->feature_config_mains[VNET_IP_RX_UNICAST_FEAT];
    ip_config_main_t *rx_cm6m =
      &ip6lm->feature_config_mains[VNET_IP_RX_MULTICAST_FEAT];
  
    VALIDATE_SW_IF_INDEX (mp);
  
    l2input_intf_bitmap_enable (sw_if_index, L2INPUT_FEAT_VPATH, mp->enable);
    if (mp->enable)
      {
        ci = rx_cm4u->config_index_by_sw_if_index[sw_if_index];	//IP4 unicast
        ci = vnet_config_add_feature (vm, &rx_cm4u->config_main,
  				    ci,
  				    im4->ip4_unicast_rx_feature_vpath, 0, 0);
        rx_cm4u->config_index_by_sw_if_index[sw_if_index] = ci;
        ci = rx_cm4m->config_index_by_sw_if_index[sw_if_index];	//IP4 mcast
        ci = vnet_config_add_feature (vm, &rx_cm4m->config_main,
  				    ci,
  				    im4->ip4_multicast_rx_feature_vpath,
  				    0, 0);
        rx_cm4m->config_index_by_sw_if_index[sw_if_index] = ci;
        ci = rx_cm6u->config_index_by_sw_if_index[sw_if_index];	//IP6 unicast
        ci = vnet_config_add_feature (vm, &rx_cm6u->config_main,
  				    ci,
  				    im6->ip6_unicast_rx_feature_vpath, 0, 0);
        rx_cm6u->config_index_by_sw_if_index[sw_if_index] = ci;
        ci = rx_cm6m->config_index_by_sw_if_index[sw_if_index];	//IP6 mcast
        ci = vnet_config_add_feature (vm, &rx_cm6m->config_main,
  				    ci,
  				    im6->ip6_multicast_rx_feature_vpath,
  				    0, 0);
        rx_cm6m->config_index_by_sw_if_index[sw_if_index] = ci;
      }
    else
      {
        ci = rx_cm4u->config_index_by_sw_if_index[sw_if_index];	//IP4 unicast
        ci = vnet_config_del_feature (vm, &rx_cm4u->config_main,
  				    ci,
  				    im4->ip4_unicast_rx_feature_vpath, 0, 0);
        rx_cm4u->config_index_by_sw_if_index[sw_if_index] = ci;
        ci = rx_cm4m->config_index_by_sw_if_index[sw_if_index];	//IP4 mcast
        ci = vnet_config_del_feature (vm, &rx_cm4m->config_main,
  				    ci,
  				    im4->ip4_multicast_rx_feature_vpath,
  				    0, 0);
        rx_cm4m->config_index_by_sw_if_index[sw_if_index] = ci;
        ci = rx_cm6u->config_index_by_sw_if_index[sw_if_index];	//IP6 unicast
        ci = vnet_config_del_feature (vm, &rx_cm6u->config_main,
  				    ci,
  				    im6->ip6_unicast_rx_feature_vpath, 0, 0);
        rx_cm6u->config_index_by_sw_if_index[sw_if_index] = ci;
        ci = rx_cm6m->config_index_by_sw_if_index[sw_if_index];	//IP6 mcast
        ci = vnet_config_del_feature (vm, &rx_cm6m->config_main,
  				    ci,
  				    im6->ip6_multicast_rx_feature_vpath,
  				    0, 0);
        rx_cm6m->config_index_by_sw_if_index[sw_if_index] = ci;
      }
  
    BAD_SW_IF_INDEX_LABEL;
  
    REPLY_MACRO (VL_API_SW_INTERFACE_SET_VPATH_REPLY);
  }
  
  static void
    vl_api_sw_interface_set_l2_xconnect_t_handler
    (vl_api_sw_interface_set_l2_xconnect_t * mp)
  {
    vl_api_sw_interface_set_l2_xconnect_reply_t *rmp;
    int rv = 0;
    u32 rx_sw_if_index = ntohl (mp->rx_sw_if_index);
    u32 tx_sw_if_index = ntohl (mp->tx_sw_if_index);
    vlib_main_t *vm = vlib_get_main ();
    vnet_main_t *vnm = vnet_get_main ();
  
    VALIDATE_RX_SW_IF_INDEX (mp);
  
    if (mp->enable)
      {
        VALIDATE_TX_SW_IF_INDEX (mp);
        rv = set_int_l2_mode (vm, vnm, MODE_L2_XC,
  			    rx_sw_if_index, 0, 0, 0, tx_sw_if_index);
      }
    else
      {
        rv = set_int_l2_mode (vm, vnm, MODE_L3, rx_sw_if_index, 0, 0, 0, 0);
      }
  
    BAD_RX_SW_IF_INDEX_LABEL;
    BAD_TX_SW_IF_INDEX_LABEL;
  
    REPLY_MACRO (VL_API_SW_INTERFACE_SET_L2_XCONNECT_REPLY);
  }
  
  static void
    vl_api_sw_interface_set_l2_bridge_t_handler
    (vl_api_sw_interface_set_l2_bridge_t * mp)
  {
    bd_main_t *bdm = &bd_main;
    vl_api_sw_interface_set_l2_bridge_reply_t *rmp;
    int rv = 0;
    u32 rx_sw_if_index = ntohl (mp->rx_sw_if_index);
    u32 bd_id = ntohl (mp->bd_id);
    u32 bd_index;
    u32 bvi = mp->bvi;
    u8 shg = mp->shg;
    vlib_main_t *vm = vlib_get_main ();
    vnet_main_t *vnm = vnet_get_main ();
  
    VALIDATE_RX_SW_IF_INDEX (mp);
  
    bd_index = bd_find_or_add_bd_index (bdm, bd_id);
  
    if (mp->enable)
      {
        //VALIDATE_TX_SW_IF_INDEX(mp);
        rv = set_int_l2_mode (vm, vnm, MODE_L2_BRIDGE,
  			    rx_sw_if_index, bd_index, bvi, shg, 0);
      }
    else
      {
        rv = set_int_l2_mode (vm, vnm, MODE_L3, rx_sw_if_index, 0, 0, 0, 0);
      }
  
    BAD_RX_SW_IF_INDEX_LABEL;
  
    REPLY_MACRO (VL_API_SW_INTERFACE_SET_L2_BRIDGE_REPLY);
  }
  
  static void
  vl_api_bridge_domain_add_del_t_handler (vl_api_bridge_domain_add_del_t * mp)
  {
    vlib_main_t *vm = vlib_get_main ();
    bd_main_t *bdm = &bd_main;
    vl_api_bridge_domain_add_del_reply_t *rmp;
    int rv = 0;
    u32 enable_flags = 0, disable_flags = 0;
    u32 bd_id = ntohl (mp->bd_id);
    u32 bd_index;
  
    if (mp->is_add)
      {
        bd_index = bd_find_or_add_bd_index (bdm, bd_id);
  
        if (mp->flood)
  	enable_flags |= L2_FLOOD;
        else
  	disable_flags |= L2_FLOOD;
  
        if (mp->uu_flood)
  	enable_flags |= L2_UU_FLOOD;
        else
  	disable_flags |= L2_UU_FLOOD;
  
        if (mp->forward)
  	enable_flags |= L2_FWD;
        else
  	disable_flags |= L2_FWD;
  
        if (mp->arp_term)
  	enable_flags |= L2_ARP_TERM;
        else
  	disable_flags |= L2_ARP_TERM;
  
        if (mp->learn)
  	enable_flags |= L2_LEARN;
        else
  	disable_flags |= L2_LEARN;
  
        if (enable_flags)
  	bd_set_flags (vm, bd_index, enable_flags, 1 /* enable */ );
  
        if (disable_flags)
  	bd_set_flags (vm, bd_index, disable_flags, 0 /* disable */ );
  
      }
    else
      rv = bd_delete_bd_index (bdm, bd_id);
  
    REPLY_MACRO (VL_API_BRIDGE_DOMAIN_ADD_DEL_REPLY);
  }
  
  static void
  vl_api_bridge_domain_details_t_handler (vl_api_bridge_domain_details_t * mp)
  {
    clib_warning ("BUG");
  }
  
  static void
    vl_api_bridge_domain_sw_if_details_t_handler
    (vl_api_bridge_domain_sw_if_details_t * mp)
  {
    clib_warning ("BUG");
  }
  
  static void
  send_bridge_domain_details (unix_shared_memory_queue_t * q,
  			    l2_bridge_domain_t * bd_config,
  			    u32 n_sw_ifs, u32 context)
  {
    vl_api_bridge_domain_details_t *mp;
  
    mp = vl_msg_api_alloc (sizeof (*mp));
    memset (mp, 0, sizeof (*mp));
    mp->_vl_msg_id = ntohs (VL_API_BRIDGE_DOMAIN_DETAILS);
    mp->bd_id = ntohl (bd_config->bd_id);
    mp->flood = bd_feature_flood (bd_config);
    mp->uu_flood = bd_feature_uu_flood (bd_config);
    mp->forward = bd_feature_forward (bd_config);
    mp->learn = bd_feature_learn (bd_config);
    mp->arp_term = bd_feature_arp_term (bd_config);
    mp->bvi_sw_if_index = ntohl (bd_config->bvi_sw_if_index);
    mp->n_sw_ifs = ntohl (n_sw_ifs);
    mp->context = context;
  
    vl_msg_api_send_shmem (q, (u8 *) & mp);
  }
  
  static void
  send_bd_sw_if_details (l2input_main_t * l2im,
  		       unix_shared_memory_queue_t * q,
  		       l2_flood_member_t * member, u32 bd_id, u32 context)
  {
    vl_api_bridge_domain_sw_if_details_t *mp;
    l2_input_config_t *input_cfg;
  
    mp = vl_msg_api_alloc (sizeof (*mp));
    memset (mp, 0, sizeof (*mp));
    mp->_vl_msg_id = ntohs (VL_API_BRIDGE_DOMAIN_SW_IF_DETAILS);
    mp->bd_id = ntohl (bd_id);
    mp->sw_if_index = ntohl (member->sw_if_index);
    input_cfg = vec_elt_at_index (l2im->configs, member->sw_if_index);
    mp->shg = input_cfg->shg;
    mp->context = context;
  
    vl_msg_api_send_shmem (q, (u8 *) & mp);
  }
  
  static void
  vl_api_bridge_domain_dump_t_handler (vl_api_bridge_domain_dump_t * mp)
  {
    bd_main_t *bdm = &bd_main;
    l2input_main_t *l2im = &l2input_main;
    unix_shared_memory_queue_t *q;
    l2_bridge_domain_t *bd_config;
    u32 bd_id, bd_index;
    u32 end;
  
    q = vl_api_client_index_to_input_queue (mp->client_index);
  
    if (q == 0)
      return;
  
    bd_id = ntohl (mp->bd_id);
  
    bd_index = (bd_id == ~0) ? 0 : bd_find_or_add_bd_index (bdm, bd_id);
    end = (bd_id == ~0) ? vec_len (l2im->bd_configs) : bd_index + 1;
    for (; bd_index < end; bd_index++)
      {
        bd_config = l2input_bd_config_from_index (l2im, bd_index);
        /* skip dummy bd_id 0 */
        if (bd_config && (bd_config->bd_id > 0))
  	{
  	  u32 n_sw_ifs;
  	  l2_flood_member_t *m;
  
  	  n_sw_ifs = vec_len (bd_config->members);
  	  send_bridge_domain_details (q, bd_config, n_sw_ifs, mp->context);
  
  	  vec_foreach (m, bd_config->members)
  	  {
  	    send_bd_sw_if_details (l2im, q, m, bd_config->bd_id, mp->context);
  	  }
  	}
      }
  }
  
  static void
  vl_api_l2fib_add_del_t_handler (vl_api_l2fib_add_del_t * mp)
  {
    bd_main_t *bdm = &bd_main;
    l2input_main_t *l2im = &l2input_main;
    vl_api_l2fib_add_del_reply_t *rmp;
    int rv = 0;
    u64 mac = 0;
    u32 sw_if_index = ntohl (mp->sw_if_index);
    u32 bd_id = ntohl (mp->bd_id);
    u32 bd_index;
    u32 static_mac;
    u32 filter_mac;
    u32 bvi_mac;
    uword *p;
  
    mac = mp->mac;
  
    p = hash_get (bdm->bd_index_by_bd_id, bd_id);
    if (!p)
      {
        rv = VNET_API_ERROR_NO_SUCH_ENTRY;
        goto bad_sw_if_index;
      }
    bd_index = p[0];
  
    if (mp->is_add)
      {
        VALIDATE_SW_IF_INDEX (mp);
        if (vec_len (l2im->configs) <= sw_if_index)
  	{
  	  rv = VNET_API_ERROR_INVALID_SW_IF_INDEX;
  	  goto bad_sw_if_index;
  	}
        else
  	{
  	  l2_input_config_t *config;
  	  config = vec_elt_at_index (l2im->configs, sw_if_index);
  	  if (config->bridge == 0)
  	    {
  	      rv = VNET_API_ERROR_INVALID_SW_IF_INDEX;
  	      goto bad_sw_if_index;
  	    }
  	}
        static_mac = mp->static_mac ? 1 : 0;
        filter_mac = mp->filter_mac ? 1 : 0;
        bvi_mac = mp->bvi_mac ? 1 : 0;
        l2fib_add_entry (mac, bd_index, sw_if_index, static_mac, filter_mac,
  		       bvi_mac);
      }
    else
      {
        l2fib_del_entry (mac, bd_index);
      }
  
    BAD_SW_IF_INDEX_LABEL;
  
    REPLY_MACRO (VL_API_L2FIB_ADD_DEL_REPLY);
  }
  
  static void
  vl_api_l2_flags_t_handler (vl_api_l2_flags_t * mp)
  {
    vl_api_l2_flags_reply_t *rmp;
    int rv = 0;
    u32 sw_if_index = ntohl (mp->sw_if_index);
    u32 flags = ntohl (mp->feature_bitmap);
    u32 rbm = 0;
  
    VALIDATE_SW_IF_INDEX (mp);
  
  #define _(a,b) \
      if (flags & L2INPUT_FEAT_ ## a) \
          rbm = l2input_intf_bitmap_enable (sw_if_index, L2INPUT_FEAT_ ## a, mp->is_set);
    foreach_l2input_feat;
  #undef _
  
    BAD_SW_IF_INDEX_LABEL;
  
    /* *INDENT-OFF* */
    REPLY_MACRO2(VL_API_L2_FLAGS_REPLY,
    ({
      rmp->resulting_feature_bitmap = ntohl(rbm);
    }));
    /* *INDENT-ON* */
  }
  
  static void
  vl_api_bridge_flags_t_handler (vl_api_bridge_flags_t * mp)
  {
    vlib_main_t *vm = vlib_get_main ();
    bd_main_t *bdm = &bd_main;
    vl_api_bridge_flags_reply_t *rmp;
    int rv = 0;
    u32 bd_id = ntohl (mp->bd_id);
    u32 bd_index;
    u32 flags = ntohl (mp->feature_bitmap);
    uword *p;
  
    p = hash_get (bdm->bd_index_by_bd_id, bd_id);
    if (p == 0)
      {
        rv = VNET_API_ERROR_NO_SUCH_ENTRY;
        goto out;
      }
  
    bd_index = p[0];
  
    bd_set_flags (vm, bd_index, flags, mp->is_set);
  
  out:
    /* *INDENT-OFF* */
    REPLY_MACRO2(VL_API_BRIDGE_FLAGS_REPLY,
    ({
      rmp->resulting_feature_bitmap = ntohl(flags);
    }));
    /* *INDENT-ON* */
  }
  
  static void
  vl_api_bd_ip_mac_add_del_t_handler (vl_api_bd_ip_mac_add_del_t * mp)
  {
    bd_main_t *bdm = &bd_main;
    vl_api_bd_ip_mac_add_del_reply_t *rmp;
    int rv = 0;
    u32 bd_id = ntohl (mp->bd_id);
    u32 bd_index;
    uword *p;
  
    p = hash_get (bdm->bd_index_by_bd_id, bd_id);
    if (p == 0)
      {
        rv = VNET_API_ERROR_NO_SUCH_ENTRY;
        goto out;
      }
  
    bd_index = p[0];
    if (bd_add_del_ip_mac (bd_index, mp->ip_address,
  			 mp->mac_address, mp->is_ipv6, mp->is_add))
      rv = VNET_API_ERROR_UNSPECIFIED;
  
  out:
    REPLY_MACRO (VL_API_BD_IP_MAC_ADD_DEL_REPLY);
  }
  
  static void
  vl_api_tap_connect_t_handler (vl_api_tap_connect_t * mp, vlib_main_t * vm)
  {
    int rv;
    vl_api_tap_connect_reply_t *rmp;
    unix_shared_memory_queue_t *q;
    u32 sw_if_index = (u32) ~ 0;
  
    rv = vnet_tap_connect_renumber (vm, mp->tap_name,
  				  mp->use_random_mac ? 0 : mp->mac_address,
  				  &sw_if_index, mp->renumber,
  				  ntohl (mp->custom_dev_instance));
  
    q = vl_api_client_index_to_input_queue (mp->client_index);
    if (!q)
      return;
  
    rmp = vl_msg_api_alloc (sizeof (*rmp));
    rmp->_vl_msg_id = ntohs (VL_API_TAP_CONNECT_REPLY);
    rmp->context = mp->context;
    rmp->retval = ntohl (rv);
    rmp->sw_if_index = ntohl (sw_if_index);
  
    vl_msg_api_send_shmem (q, (u8 *) & rmp);
  }
  
  static void
  vl_api_tap_modify_t_handler (vl_api_tap_modify_t * mp, vlib_main_t * vm)
  {
    int rv;
    vl_api_tap_modify_reply_t *rmp;
    unix_shared_memory_queue_t *q;
    u32 sw_if_index = (u32) ~ 0;
  
    rv = vnet_tap_modify (vm, ntohl (mp->sw_if_index), mp->tap_name,
  			mp->use_random_mac ? 0 : mp->mac_address,
  			&sw_if_index, mp->renumber,
  			ntohl (mp->custom_dev_instance));
  
    q = vl_api_client_index_to_input_queue (mp->client_index);
    if (!q)
      return;
  
    rmp = vl_msg_api_alloc (sizeof (*rmp));
    rmp->_vl_msg_id = ntohs (VL_API_TAP_MODIFY_REPLY);
    rmp->context = mp->context;
    rmp->retval = ntohl (rv);
    rmp->sw_if_index = ntohl (sw_if_index);
  
    vl_msg_api_send_shmem (q, (u8 *) & rmp);
  }
  
  static void
  vl_api_tap_delete_t_handler (vl_api_tap_delete_t * mp, vlib_main_t * vm)
  {
    int rv;
    vpe_api_main_t *vam = &vpe_api_main;
    vl_api_tap_delete_reply_t *rmp;
    unix_shared_memory_queue_t *q;
    u32 sw_if_index = ntohl (mp->sw_if_index);
  
    rv = vnet_tap_delete (vm, sw_if_index);
  
    q = vl_api_client_index_to_input_queue (mp->client_index);
    if (!q)
      return;
  
    rmp = vl_msg_api_alloc (sizeof (*rmp));
    rmp->_vl_msg_id = ntohs (VL_API_TAP_DELETE_REPLY);
    rmp->context = mp->context;
    rmp->retval = ntohl (rv);
  
    vl_msg_api_send_shmem (q, (u8 *) & rmp);
  
    if (!rv)
      send_sw_interface_flags_deleted (vam, q, sw_if_index);
  }
  
  static void
  vl_api_create_vlan_subif_t_handler (vl_api_create_vlan_subif_t * mp)
  {
    vl_api_create_vlan_subif_reply_t *rmp;
    vnet_main_t *vnm = vnet_get_main ();
    u32 hw_if_index, sw_if_index = (u32) ~ 0;
    vnet_hw_interface_t *hi;
    int rv = 0;
    u32 id;
    vnet_sw_interface_t template;
    uword *p;
    vnet_interface_main_t *im = &vnm->interface_main;
    u64 sup_and_sub_key;
    u64 *kp;
    unix_shared_memory_queue_t *q;
    clib_error_t *error;
  
    VALIDATE_SW_IF_INDEX (mp);
  
    hw_if_index = ntohl (mp->sw_if_index);
    hi = vnet_get_hw_interface (vnm, hw_if_index);
  
    id = ntohl (mp->vlan_id);
    if (id == 0 || id > 4095)
      {
        rv = VNET_API_ERROR_INVALID_VLAN;
        goto out;
      }
  
    sup_and_sub_key = ((u64) (hi->sw_if_index) << 32) | (u64) id;
  
    p = hash_get_mem (im->sw_if_index_by_sup_and_sub, &sup_and_sub_key);
    if (p)
      {
        rv = VNET_API_ERROR_VLAN_ALREADY_EXISTS;
        goto out;
      }
  
    kp = clib_mem_alloc (sizeof (*kp));
    *kp = sup_and_sub_key;
  
    memset (&template, 0, sizeof (template));
    template.type = VNET_SW_INTERFACE_TYPE_SUB;
    template.sup_sw_if_index = hi->sw_if_index;
    template.sub.id = id;
    template.sub.eth.raw_flags = 0;
    template.sub.eth.flags.one_tag = 1;
    template.sub.eth.outer_vlan_id = id;
    template.sub.eth.flags.exact_match = 1;
  
    error = vnet_create_sw_interface (vnm, &template, &sw_if_index);
    if (error)
      {
        clib_error_report (error);
        rv = VNET_API_ERROR_INVALID_REGISTRATION;
        goto out;
      }
    hash_set (hi->sub_interface_sw_if_index_by_id, id, sw_if_index);
    hash_set_mem (im->sw_if_index_by_sup_and_sub, kp, sw_if_index);
  
    BAD_SW_IF_INDEX_LABEL;
  
  out:
    q = vl_api_client_index_to_input_queue (mp->client_index);
    if (!q)
      return;
  
    rmp = vl_msg_api_alloc (sizeof (*rmp));
    rmp->_vl_msg_id = ntohs (VL_API_CREATE_VLAN_SUBIF_REPLY);
    rmp->context = mp->context;
    rmp->retval = ntohl (rv);
    rmp->sw_if_index = ntohl (sw_if_index);
    vl_msg_api_send_shmem (q, (u8 *) & rmp);
  }
  
  static void
  vl_api_create_subif_t_handler (vl_api_create_subif_t * mp)
  {
    vl_api_create_subif_reply_t *rmp;
    vnet_main_t *vnm = vnet_get_main ();
    u32 sw_if_index = ~0;
    int rv = 0;
    u32 sub_id;
    vnet_sw_interface_t *si;
    vnet_hw_interface_t *hi;
    vnet_sw_interface_t template;
    uword *p;
    vnet_interface_main_t *im = &vnm->interface_main;
    u64 sup_and_sub_key;
    u64 *kp;
    clib_error_t *error;
  
    VALIDATE_SW_IF_INDEX (mp);
  
    si = vnet_get_sup_sw_interface (vnm, ntohl (mp->sw_if_index));
    hi = vnet_get_sup_hw_interface (vnm, ntohl (mp->sw_if_index));
  
    if (hi->bond_info == VNET_HW_INTERFACE_BOND_INFO_SLAVE)
      {
        rv = VNET_API_ERROR_BOND_SLAVE_NOT_ALLOWED;
        goto out;
      }
  
    sw_if_index = si->sw_if_index;
    sub_id = ntohl (mp->sub_id);
  
    sup_and_sub_key = ((u64) (sw_if_index) << 32) | (u64) sub_id;
  
    p = hash_get_mem (im->sw_if_index_by_sup_and_sub, &sup_and_sub_key);
    if (p)
      {
        if (CLIB_DEBUG > 0)
  	clib_warning ("sup sw_if_index %d, sub id %d already exists\n",
  		      sw_if_index, sub_id);
        rv = VNET_API_ERROR_SUBIF_ALREADY_EXISTS;
        goto out;
      }
  
    kp = clib_mem_alloc (sizeof (*kp));
    *kp = sup_and_sub_key;
  
    memset (&template, 0, sizeof (template));
    template.type = VNET_SW_INTERFACE_TYPE_SUB;
    template.sup_sw_if_index = sw_if_index;
    template.sub.id = sub_id;
    template.sub.eth.flags.no_tags = mp->no_tags;
    template.sub.eth.flags.one_tag = mp->one_tag;
    template.sub.eth.flags.two_tags = mp->two_tags;
    template.sub.eth.flags.dot1ad = mp->dot1ad;
    template.sub.eth.flags.exact_match = mp->exact_match;
    template.sub.eth.flags.default_sub = mp->default_sub;
    template.sub.eth.flags.outer_vlan_id_any = mp->outer_vlan_id_any;
    template.sub.eth.flags.inner_vlan_id_any = mp->inner_vlan_id_any;
    template.sub.eth.outer_vlan_id = ntohs (mp->outer_vlan_id);
    template.sub.eth.inner_vlan_id = ntohs (mp->inner_vlan_id);
  
    error = vnet_create_sw_interface (vnm, &template, &sw_if_index);
    if (error)
      {
        clib_error_report (error);
        rv = VNET_API_ERROR_SUBIF_CREATE_FAILED;
        goto out;
      }
  
    hash_set (hi->sub_interface_sw_if_index_by_id, sub_id, sw_if_index);
    hash_set_mem (im->sw_if_index_by_sup_and_sub, kp, sw_if_index);
  
    BAD_SW_IF_INDEX_LABEL;
  
  out:
  
    /* *INDENT-OFF* */
    REPLY_MACRO2(VL_API_CREATE_SUBIF_REPLY,
    ({
      rmp->sw_if_index = ntohl(sw_if_index);
    }));
    /* *INDENT-ON* */
  }
  
  static void
  vl_api_mpls_gre_add_del_tunnel_t_handler (vl_api_mpls_gre_add_del_tunnel_t *
  					  mp)
  {
    vl_api_mpls_gre_add_del_tunnel_reply_t *rmp;
    int rv = 0;
    stats_main_t *sm = &stats_main;
    u32 tunnel_sw_if_index = ~0;
  
    dslock (sm, 1 /* release hint */ , 5 /* tag */ );
  
    rv = vnet_mpls_gre_add_del_tunnel ((ip4_address_t *) (mp->src_address),
  				     (ip4_address_t *) (mp->dst_address),
  				     (ip4_address_t *) (mp->intfc_address),
  				     (u32) (mp->intfc_address_length),
  				     ntohl (mp->inner_vrf_id),
  				     ntohl (mp->outer_vrf_id),
  				     &tunnel_sw_if_index,
  				     mp->l2_only, mp->is_add);
    dsunlock (sm);
  
    /* *INDENT-OFF* */
    REPLY_MACRO2(VL_API_MPLS_GRE_ADD_DEL_TUNNEL_REPLY,
    ({
      rmp->tunnel_sw_if_index = ntohl(tunnel_sw_if_index);
    }));
    /* *INDENT-ON* */
  }
  
  static void
    vl_api_mpls_ethernet_add_del_tunnel_t_handler
    (vl_api_mpls_ethernet_add_del_tunnel_t * mp)
  {
    vl_api_mpls_ethernet_add_del_tunnel_reply_t *rmp;
    int rv = 0;
    stats_main_t *sm = &stats_main;
    u32 tunnel_sw_if_index;
  
    dslock (sm, 1 /* release hint */ , 5 /* tag */ );
  
    rv = vnet_mpls_ethernet_add_del_tunnel
      (mp->dst_mac_address, (ip4_address_t *) (mp->adj_address),
       (u32) (mp->adj_address_length), ntohl (mp->vrf_id),
       ntohl (mp->tx_sw_if_index),
       &tunnel_sw_if_index, mp->l2_only, mp->is_add);
  
    dsunlock (sm);
  
    /* *INDENT-OFF* */
    REPLY_MACRO2(VL_API_MPLS_ETHERNET_ADD_DEL_TUNNEL_REPLY,
    ({
      rmp->tunnel_sw_if_index = ntohl(tunnel_sw_if_index);
    }));
    /* *INDENT-ON* */
  }
  
  /*
   * This piece of misery brought to you because the control-plane
   * can't figure out the tx interface + dst-mac address all by itself
   */
  static int mpls_ethernet_add_del_tunnel_2_t_handler
    (vl_api_mpls_ethernet_add_del_tunnel_2_t * mp)
  {
    pending_route_t *pr;
    vl_api_mpls_ethernet_add_del_tunnel_2_t *pme;
    vnet_main_t *vnm = vnet_get_main ();
    vlib_main_t *vm = vlib_get_main ();
    stats_main_t *sm = &stats_main;
    vpe_api_main_t *vam = &vpe_api_main;
    u32 inner_fib_index, outer_fib_index;
    ip4_main_t *im = &ip4_main;
    ip_lookup_main_t *lm = &im->lookup_main;
    ip_adjacency_t *adj = 0;
    u32 lookup_result;
    u32 tx_sw_if_index;
    u8 *dst_mac_address;
    clib_error_t *e;
    uword *p;
    int rv;
    u32 tunnel_sw_if_index;
  
    p = hash_get (im->fib_index_by_table_id, ntohl (mp->outer_vrf_id));
    if (!p)
      return VNET_API_ERROR_NO_SUCH_FIB;
    else
      outer_fib_index = p[0];
  
  
    p = hash_get (im->fib_index_by_table_id, ntohl (mp->inner_vrf_id));
    if (!p)
      return VNET_API_ERROR_NO_SUCH_INNER_FIB;
    else
      inner_fib_index = p[0];
  
    if (inner_fib_index == outer_fib_index)
      return VNET_API_ERROR_INVALID_VALUE;
  
    lookup_result = ip4_fib_lookup_with_table
      (im, outer_fib_index,
       (ip4_address_t *) mp->next_hop_ip4_address_in_outer_vrf,
       1 /* disable default route */ );
  
    adj = ip_get_adjacency (lm, lookup_result);
    tx_sw_if_index = adj->rewrite_header.sw_if_index;
  
    if (mp->is_add && mp->resolve_if_needed)
      {
        if (adj->lookup_next_index == IP_LOOKUP_NEXT_ARP)
  	{
  	  pool_get (vam->pending_routes, pr);
  	  pr->resolve_type = RESOLVE_MPLS_ETHERNET_ADD_DEL;
  	  pme = &pr->t;
  	  clib_memcpy (pme, mp, sizeof (*pme));
  	  /* recursion block, "just in case" */
  	  pme->resolve_if_needed = 0;
  	  pme->resolve_attempts = ntohl (mp->resolve_attempts);
  	  pme->resolve_opaque = tx_sw_if_index;
  	  vnet_register_ip4_arp_resolution_event
  	    (vnm,
  	     (ip4_address_t *) & (pme->next_hop_ip4_address_in_outer_vrf),
  	     vpe_resolver_process_node.index,
  	     RESOLUTION_EVENT, pr - vam->pending_routes);
  
  	  vlib_process_signal_event
  	    (vm, vpe_resolver_process_node.index,
  	     RESOLUTION_PENDING_EVENT, 0 /* data */ );
  
  	  /* The interface may be down, etc. */
  	  e = ip4_probe_neighbor
  	    (vm, (ip4_address_t *) & (mp->next_hop_ip4_address_in_outer_vrf),
  	     tx_sw_if_index);
  
  	  if (e)
  	    clib_error_report (e);
  
  	  return VNET_API_ERROR_IN_PROGRESS;
  	}
      }
  
    if (adj->lookup_next_index != IP_LOOKUP_NEXT_REWRITE)
      return VNET_API_ERROR_NEXT_HOP_NOT_IN_FIB;
  
    dst_mac_address =
      vnet_rewrite_get_data_internal
      (&adj->rewrite_header, sizeof (adj->rewrite_data));
  
    dslock (sm, 1 /* release hint */ , 10 /* tag */ );
  
    rv = vnet_mpls_ethernet_add_del_tunnel
      (dst_mac_address, (ip4_address_t *) (mp->adj_address),
       (u32) (mp->adj_address_length), ntohl (mp->inner_vrf_id),
       tx_sw_if_index, &tunnel_sw_if_index, mp->l2_only, mp->is_add);
  
    dsunlock (sm);
  
    return rv;
  }
  
  static void
    vl_api_mpls_ethernet_add_del_tunnel_2_t_handler
    (vl_api_mpls_ethernet_add_del_tunnel_2_t * mp)
  {
    vl_api_mpls_ethernet_add_del_tunnel_reply_t *rmp;
    int rv = 0;
  
    rv = mpls_ethernet_add_del_tunnel_2_t_handler (mp);
  
    REPLY_MACRO (VL_API_MPLS_ETHERNET_ADD_DEL_TUNNEL_2_REPLY);
  }
  
  
  static void
  vl_api_mpls_add_del_encap_t_handler (vl_api_mpls_add_del_encap_t * mp)
  {
    vl_api_mpls_add_del_encap_reply_t *rmp;
    int rv;
    static u32 *labels;
    int i;
  
    vec_reset_length (labels);
  
    for (i = 0; i < mp->nlabels; i++)
      vec_add1 (labels, ntohl (mp->labels[i]));
  
    /* $$$$ fixme */
    rv = vnet_mpls_add_del_encap ((ip4_address_t *) mp->dst_address,
  				ntohl (mp->vrf_id), labels,
  				~0 /* policy_tunnel_index */ ,
  				0 /* no_dst_hash */ ,
  				0 /* indexp */ ,
  				mp->is_add);
  
    REPLY_MACRO (VL_API_MPLS_ADD_DEL_ENCAP_REPLY);
  }
  
  static void
  vl_api_mpls_add_del_decap_t_handler (vl_api_mpls_add_del_decap_t * mp)
  {
    vl_api_mpls_add_del_decap_reply_t *rmp;
    int rv;
  
    rv = vnet_mpls_add_del_decap (ntohl (mp->rx_vrf_id), ntohl (mp->tx_vrf_id),
  				ntohl (mp->label), ntohl (mp->next_index),
  				mp->s_bit, mp->is_add);
  
    REPLY_MACRO (VL_API_MPLS_ADD_DEL_DECAP_REPLY);
  }
  
  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;
    stats_main_t *sm = &stats_main;
    int vnet_proxy_arp_add_del (ip4_address_t * lo_addr,
  			      ip4_address_t * hi_addr,
  			      u32 fib_index, int is_del);
    uword *p;
  
    dslock (sm, 1 /* release hint */ , 6 /* tag */ );
  
    p = hash_get (im->fib_index_by_table_id, ntohl (mp->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->low_address,
  			       (ip4_address_t *) mp->hi_address,
  			       fib_index, mp->is_add == 0);
  
  out:
    dsunlock (sm);
    REPLY_MACRO (VL_API_PROXY_ARP_ADD_DEL_REPLY);
  }
  
  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;
    vnet_sw_interface_t *si;
    u32 sw_if_index;
  
    VALIDATE_SW_IF_INDEX (mp);
  
    sw_if_index = ntohl (mp->sw_if_index);
  
    if (pool_is_free_index (vnm->interface_main.sw_interfaces, sw_if_index))
      {
        rv = VNET_API_ERROR_INVALID_SW_IF_INDEX;
        goto out;
      }
  
    si = vnet_get_sw_interface (vnm, 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;
  
  out:
    REPLY_MACRO (VL_API_PROXY_ARP_INTFC_ENABLE_DISABLE_REPLY);
  }
  
  static void
  vl_api_ip_neighbor_add_del_t_handler (vl_api_ip_neighbor_add_del_t * mp,
  				      vlib_main_t * vm)
  {
    vl_api_ip_neighbor_add_del_reply_t *rmp;
    vnet_main_t *vnm = vnet_get_main ();
    u32 fib_index;
    int rv = 0;
    stats_main_t *sm = &stats_main;
  
    VALIDATE_SW_IF_INDEX (mp);
  
    dslock (sm, 1 /* release hint */ , 7 /* tag */ );
  
    if (mp->is_ipv6)
      {
        if (mp->is_add)
  	rv = vnet_set_ip6_ethernet_neighbor
  	  (vm, ntohl (mp->sw_if_index),
  	   (ip6_address_t *) (mp->dst_address),
  	   mp->mac_address, sizeof (mp->mac_address), mp->is_static);
        else
  	rv = vnet_unset_ip6_ethernet_neighbor
  	  (vm, ntohl (mp->sw_if_index),
  	   (ip6_address_t *) (mp->dst_address),
  	   mp->mac_address, sizeof (mp->mac_address));
      }
    else
      {
        ip4_main_t *im = &ip4_main;
        ip_lookup_main_t *lm = &im->lookup_main;
        ethernet_arp_ip4_over_ethernet_address_t a;
        u32 ai;
        ip_adjacency_t *nh_adj;
  
        uword *p = hash_get (im->fib_index_by_table_id, ntohl (mp->vrf_id));
        if (!p)
  	{
  	  rv = VNET_API_ERROR_NO_SUCH_FIB;
  	  goto out;
  	}
        fib_index = p[0];
  
        /*
         * Unfortunately, folks have a penchant for
         * adding interface addresses to the ARP cache, and
         * wondering why the forwarder eventually ASSERTs...
         */
        ai = ip4_fib_lookup_with_table
  	(im, fib_index, (ip4_address_t *) (mp->dst_address),
  	 1 /* disable default route */ );
  
        if (ai != 0)
  	{
  	  nh_adj = ip_get_adjacency (lm, ai);
  	  /* Never allow manipulation of a local adj! */
  	  if (nh_adj->lookup_next_index == IP_LOOKUP_NEXT_LOCAL)
  	    {
  	      clib_warning ("%U matches local adj",
  			    format_ip4_address,
  			    (ip4_address_t *) (mp->dst_address));
  	      rv = VNET_API_ERROR_ADDRESS_MATCHES_INTERFACE_ADDRESS;
  	      goto out;
  	    }
  	}
  
        clib_memcpy (&a.ethernet, mp->mac_address, 6);
        clib_memcpy (&a.ip4, mp->dst_address, 4);
  
        if (mp->is_add)
  	rv = vnet_arp_set_ip4_over_ethernet (vnm, ntohl (mp->sw_if_index),
  					     fib_index, &a, mp->is_static);
        else
  	rv = vnet_arp_unset_ip4_over_ethernet (vnm, ntohl (mp->sw_if_index),
  					       fib_index, &a);
      }
  
    BAD_SW_IF_INDEX_LABEL;
  out:
    dsunlock (sm);
    REPLY_MACRO (VL_API_IP_NEIGHBOR_ADD_DEL_REPLY);
  }
  
  static void
  vl_api_is_address_reachable_t_handler (vl_api_is_address_reachable_t * mp)
  {
  #if 0
    vpe_main_t *rm = &vpe_main;
    ip4_main_t *im4 = &ip4_main;
    ip6_main_t *im6 = &ip6_main;
    ip_lookup_main_t *lm;
    union
    {
      ip4_address_t ip4;
      ip6_address_t ip6;
    } addr;
    u32 adj_index, sw_if_index;
    vl_api_is_address_reachable_t *rmp;
    ip_adjacency_t *adj;
    unix_shared_memory_queue_t *q;
  
    q = vl_api_client_index_to_input_queue (mp->client_index);
    if (!q)
      {
        increment_missing_api_client_counter (rm->vlib_main);
        return;
      }
  
    rmp = vl_msg_api_alloc (sizeof (*rmp));
    clib_memcpy (rmp, mp, sizeof (*rmp));
  
    sw_if_index = mp->next_hop_sw_if_index;
    clib_memcpy (&addr, mp->address, sizeof (addr));
    if (mp->is_ipv6)
      {
        lm = &im6->lookup_main;
        adj_index = ip6_fib_lookup (im6, sw_if_index, &addr.ip6);
      }
    else
      {
        lm = &im4->lookup_main;
        adj_index = ip4_fib_lookup (im4, sw_if_index, &addr.ip4);
      }
    if (adj_index == ~0)
      {
        rmp->is_error = 1;
        goto send;
      }
    adj = ip_get_adjacency (lm, adj_index);
  
    if (adj->lookup_next_index == IP_LOOKUP_NEXT_REWRITE
        && adj->rewrite_header.sw_if_index == sw_if_index)
      {
        rmp->is_known = 1;
      }
    else
      {
        if (adj->lookup_next_index == IP_LOOKUP_NEXT_ARP
  	  && adj->rewrite_header.sw_if_index == sw_if_index)
  	{
  	  if (mp->is_ipv6)
  	    ip6_probe_neighbor (rm->vlib_main, &addr.ip6, sw_if_index);
  	  else
  	    ip4_probe_neighbor (rm->vlib_main, &addr.ip4, sw_if_index);
  	}
        else if (adj->lookup_next_index == IP_LOOKUP_NEXT_DROP)
  	{
  	  rmp->is_known = 1;
  	  goto send;
  	}
        rmp->is_known = 0;
      }
  
  send:
    vl_msg_api_send_shmem (q, (u8 *) & rmp);
  #endif
  }
  
  static void
  vl_api_sw_interface_details_t_handler (vl_api_sw_interface_details_t * mp)
  {
    clib_warning ("BUG");
  }
  
  static void
  vl_api_sw_interface_set_flags_t_handler (vl_api_sw_interface_set_flags_t * mp)
  {
    vl_api_sw_interface_set_flags_reply_t *rmp;
    vnet_main_t *vnm = vnet_get_main ();
    int rv = 0;
    clib_error_t *error;
    u16 flags;
  
    VALIDATE_SW_IF_INDEX (mp);
  
    flags = mp->admin_up_down ? VNET_SW_INTERFACE_FLAG_ADMIN_UP : 0;
  
    error = vnet_sw_interface_set_flags (vnm, ntohl (mp->sw_if_index), flags);
    if (error)
      {
        rv = -1;
        clib_error_report (error);
      }
  
    BAD_SW_IF_INDEX_LABEL;
    REPLY_MACRO (VL_API_SW_INTERFACE_SET_FLAGS_REPLY);
  }
  
  static void
  vl_api_sw_interface_clear_stats_t_handler (vl_api_sw_interface_clear_stats_t *
  					   mp)
  {
    vl_api_sw_interface_clear_stats_reply_t *rmp;
  
    vnet_main_t *vnm = vnet_get_main ();
    vnet_interface_main_t *im = &vnm->interface_main;
    vlib_simple_counter_main_t *sm;
    vlib_combined_counter_main_t *cm;
    static vnet_main_t **my_vnet_mains;
    int i, j, n_counters;
    int rv = 0;
  
    if (mp->sw_if_index != ~0)
      VALIDATE_SW_IF_INDEX (mp);
  
    vec_reset_length (my_vnet_mains);
  
    for (i = 0; i < vec_len (vnet_mains); i++)
      {
        if (vnet_mains[i])
  	vec_add1 (my_vnet_mains, vnet_mains[i]);
      }
  
    if (vec_len (vnet_mains) == 0)
      vec_add1 (my_vnet_mains, vnm);
  
    n_counters = vec_len (im->combined_sw_if_counters);
  
    for (j = 0; j < n_counters; j++)
      {
        for (i = 0; i < vec_len (my_vnet_mains); i++)
  	{
  	  im = &my_vnet_mains[i]->interface_main;
  	  cm = im->combined_sw_if_counters + j;
  	  if (mp->sw_if_index == (u32) ~ 0)
  	    vlib_clear_combined_counters (cm);
  	  else
  	    vlib_zero_combined_counter (cm, ntohl (mp->sw_if_index));
  	}
      }
  
    n_counters = vec_len (im->sw_if_counters);
  
    for (j = 0; j < n_counters; j++)
      {
        for (i = 0; i < vec_len (my_vnet_mains); i++)
  	{
  	  im = &my_vnet_mains[i]->interface_main;
  	  sm = im->sw_if_counters + j;
  	  if (mp->sw_if_index == (u32) ~ 0)
  	    vlib_clear_simple_counters (sm);
  	  else
  	    vlib_zero_simple_counter (sm, ntohl (mp->sw_if_index));
  	}
      }
  
    BAD_SW_IF_INDEX_LABEL;
  
    REPLY_MACRO (VL_API_SW_INTERFACE_CLEAR_STATS_REPLY);
  }
  
  static void
  send_sw_interface_details (vpe_api_main_t * am,
  			   unix_shared_memory_queue_t * q,
  			   vnet_sw_interface_t * swif,
  			   u8 * interface_name, u32 context)
  {
    vl_api_sw_interface_details_t *mp;
    vnet_hw_interface_t *hi;
  
    hi = vnet_get_sup_hw_interface (am->vnet_main, swif->sw_if_index);
  
    mp = vl_msg_api_alloc (sizeof (*mp));
    memset (mp, 0, sizeof (*mp));
    mp->_vl_msg_id = ntohs (VL_API_SW_INTERFACE_DETAILS);
    mp->sw_if_index = ntohl (swif->sw_if_index);
    mp->sup_sw_if_index = ntohl (swif->sup_sw_if_index);
    mp->admin_up_down = (swif->flags & VNET_SW_INTERFACE_FLAG_ADMIN_UP) ? 1 : 0;
    mp->link_up_down = (hi->flags & VNET_HW_INTERFACE_FLAG_LINK_UP) ? 1 : 0;
    mp->link_duplex = ((hi->flags & VNET_HW_INTERFACE_FLAG_DUPLEX_MASK) >>
  		     VNET_HW_INTERFACE_FLAG_DUPLEX_SHIFT);
    mp->link_speed = ((hi->flags & VNET_HW_INTERFACE_FLAG_SPEED_MASK) >>
  		    VNET_HW_INTERFACE_FLAG_SPEED_SHIFT);
    mp->link_mtu = ntohs (hi->max_packet_bytes);
    mp->context = context;
  
    strncpy ((char *) mp->interface_name,
  	   (char *) interface_name, ARRAY_LEN (mp->interface_name) - 1);
  
    /* Send the L2 address for ethernet physical intfcs */
    if (swif->sup_sw_if_index == swif->sw_if_index
        && hi->hw_class_index == ethernet_hw_interface_class.index)
      {
        ethernet_main_t *em = ethernet_get_main (am->vlib_main);
        ethernet_interface_t *ei;
  
        ei = pool_elt_at_index (em->interfaces, hi->hw_instance);
        ASSERT (sizeof (mp->l2_address) >= sizeof (ei->address));
        clib_memcpy (mp->l2_address, ei->address, sizeof (ei->address));
        mp->l2_address_length = ntohl (sizeof (ei->address));
      }
    else if (swif->sup_sw_if_index != swif->sw_if_index)
      {
        vnet_sub_interface_t *sub = &swif->sub;
        mp->sub_id = ntohl (sub->id);
        mp->sub_dot1ad = sub->eth.flags.dot1ad;
        mp->sub_number_of_tags =
  	sub->eth.flags.one_tag + sub->eth.flags.two_tags * 2;
        mp->sub_outer_vlan_id = ntohs (sub->eth.outer_vlan_id);
        mp->sub_inner_vlan_id = ntohs (sub->eth.inner_vlan_id);
        mp->sub_exact_match = sub->eth.flags.exact_match;
        mp->sub_default = sub->eth.flags.default_sub;
        mp->sub_outer_vlan_id_any = sub->eth.flags.outer_vlan_id_any;
        mp->sub_inner_vlan_id_any = sub->eth.flags.inner_vlan_id_any;
  
        /* vlan tag rewrite data */
        u32 vtr_op = L2_VTR_DISABLED;
        u32 vtr_push_dot1q = 0, vtr_tag1 = 0, vtr_tag2 = 0;
  
        if (l2vtr_get (am->vlib_main, am->vnet_main, swif->sw_if_index,
  		     &vtr_op, &vtr_push_dot1q, &vtr_tag1, &vtr_tag2) != 0)
  	{
  	  // error - default to disabled
  	  mp->vtr_op = ntohl (L2_VTR_DISABLED);
  	  clib_warning ("cannot get vlan tag rewrite for sw_if_index %d",
  			swif->sw_if_index);
  	}
        else
  	{
  	  mp->vtr_op = ntohl (vtr_op);
  	  mp->vtr_push_dot1q = ntohl (vtr_push_dot1q);
  	  mp->vtr_tag1 = ntohl (vtr_tag1);
  	  mp->vtr_tag2 = ntohl (vtr_tag2);
  	}
      }
  
    vl_msg_api_send_shmem (q, (u8 *) & mp);
  }
  
  static void
  send_sw_interface_flags (vpe_api_main_t * am,
  			 unix_shared_memory_queue_t * q,
  			 vnet_sw_interface_t * swif)
  {
    vl_api_sw_interface_set_flags_t *mp;
    vnet_main_t *vnm = am->vnet_main;
  
    vnet_hw_interface_t *hi = vnet_get_sup_hw_interface (vnm,
  						       swif->sw_if_index);
    mp = vl_msg_api_alloc (sizeof (*mp));
    memset (mp, 0, sizeof (*mp));
    mp->_vl_msg_id = ntohs (VL_API_SW_INTERFACE_SET_FLAGS);
    mp->sw_if_index = ntohl (swif->sw_if_index);
  
    mp->admin_up_down = (swif->flags & VNET_SW_INTERFACE_FLAG_ADMIN_UP) ? 1 : 0;
    mp->link_up_down = (hi->flags & VNET_HW_INTERFACE_FLAG_LINK_UP) ? 1 : 0;
    vl_msg_api_send_shmem (q, (u8 *) & mp);
  }
  
  static void send_sw_interface_flags_deleted (vpe_api_main_t * am,
  					     unix_shared_memory_queue_t * q,
  					     u32 sw_if_index)
    __attribute__ ((unused));
  
  static void
  send_sw_interface_flags_deleted (vpe_api_main_t * am,
  				 unix_shared_memory_queue_t * q,
  				 u32 sw_if_index)
  {
    vl_api_sw_interface_set_flags_t *mp;
  
    mp = vl_msg_api_alloc (sizeof (*mp));
    memset (mp, 0, sizeof (*mp));
    mp->_vl_msg_id = ntohs (VL_API_SW_INTERFACE_SET_FLAGS);
    mp->sw_if_index = ntohl (sw_if_index);
  
    mp->admin_up_down = 0;
    mp->link_up_down = 0;
    mp->deleted = 1;
    vl_msg_api_send_shmem (q, (u8 *) & mp);
  }
  
  static void
  vl_api_sw_interface_dump_t_handler (vl_api_sw_interface_dump_t * mp)
  {
    vpe_api_main_t *am = &vpe_api_main;
    vnet_sw_interface_t *swif;
    vnet_interface_main_t *im = &am->vnet_main->interface_main;
    u8 *filter_string = 0, *name_string = 0;
    unix_shared_memory_queue_t *q;
    char *strcasestr (char *, char *);	/* lnx hdr file botch */
  
    q = vl_api_client_index_to_input_queue (mp->client_index);
  
    if (q == 0)
      return;
  
    if (mp->name_filter_valid)
      {
        mp->name_filter[ARRAY_LEN (mp->name_filter) - 1] = 0;
        filter_string = format (0, "%s%c", mp->name_filter, 0);
      }
  
    /* *INDENT-OFF* */
    pool_foreach (swif, im->sw_interfaces,
    ({
      name_string = format (name_string, "%U%c",
                            format_vnet_sw_interface_name,
                            am->vnet_main, swif, 0);
  
      if (mp->name_filter_valid == 0 ||
          strcasestr((char *) name_string, (char *) filter_string)) {
  
        send_sw_interface_details (am, q, swif, name_string, mp->context);
      }
      _vec_len (name_string) = 0;
    }));
    /* *INDENT-ON* */
  
    vec_free (name_string);
    vec_free (filter_string);
  }
  
  void
  send_oam_event (oam_target_t * t)
  {
    vpe_api_main_t *vam = &vpe_api_main;
    unix_shared_memory_queue_t *q;
    vpe_client_registration_t *reg;
    vl_api_oam_event_t *mp;
  
    /* *INDENT-OFF* */
    pool_foreach(reg, vam->oam_events_registrations,
    ({
      q = vl_api_client_index_to_input_queue (reg->client_index);
      if (q)
        {
          mp = vl_msg_api_alloc (sizeof (*mp));
          mp->_vl_msg_id = ntohs (VL_API_OAM_EVENT);
          clib_memcpy (mp->dst_address, &t->dst_address,
                       sizeof (mp->dst_address));
          mp->state = t->state;
          vl_msg_api_send_shmem (q, (u8 *)&mp);
        }
    }));
    /* *INDENT-ON* */
  }
  
  static void
  vl_api_oam_add_del_t_handler (vl_api_oam_add_del_t * mp)
  {
    vl_api_oam_add_del_reply_t *rmp;
    int rv;
  
    rv = vpe_oam_add_del_target ((ip4_address_t *) mp->src_address,
  			       (ip4_address_t *) mp->dst_address,
  			       ntohl (mp->vrf_id), (int) (mp->is_add));
  
    REPLY_MACRO (VL_API_OAM_ADD_DEL_REPLY);
  }
  
  static void
  vl_api_vnet_get_summary_stats_t_handler (vl_api_vnet_get_summary_stats_t * mp)
  {
    stats_main_t *sm = &stats_main;
    vnet_interface_main_t *im = sm->interface_main;
    vl_api_vnet_summary_stats_reply_t *rmp;
    vlib_combined_counter_main_t *cm;
    vlib_counter_t v;
    int i, which;
    u64 total_pkts[VLIB_N_RX_TX];
    u64 total_bytes[VLIB_N_RX_TX];
  
    unix_shared_memory_queue_t *q =
      vl_api_client_index_to_input_queue (mp->client_index);
  
    if (!q)
      return;
  
    rmp = vl_msg_api_alloc (sizeof (*rmp));
    rmp->_vl_msg_id = ntohs (VL_API_VNET_SUMMARY_STATS_REPLY);
    rmp->context = mp->context;
    rmp->retval = 0;
  
    memset (total_pkts, 0, sizeof (total_pkts));
    memset (total_bytes, 0, sizeof (total_bytes));
  
    vnet_interface_counter_lock (im);
  
    vec_foreach (cm, im->combined_sw_if_counters)
    {
      which = cm - im->combined_sw_if_counters;
  
      for (i = 0; i < vec_len (cm->maxi); i++)
        {
  	vlib_get_combined_counter (cm, i, &v);
  	total_pkts[which] += v.packets;
  	total_bytes[which] += v.bytes;
        }
    }
    vnet_interface_counter_unlock (im);
  
    rmp->total_pkts[VLIB_RX] = clib_host_to_net_u64 (total_pkts[VLIB_RX]);
    rmp->total_bytes[VLIB_RX] = clib_host_to_net_u64 (total_bytes[VLIB_RX]);
    rmp->total_pkts[VLIB_TX] = clib_host_to_net_u64 (total_pkts[VLIB_TX]);
    rmp->total_bytes[VLIB_TX] = clib_host_to_net_u64 (total_bytes[VLIB_TX]);
    rmp->vector_rate =
      clib_host_to_net_u64 (vlib_last_vector_length_per_node (sm->vlib_main));
  
    vl_msg_api_send_shmem (q, (u8 *) & rmp);
  }
  
  /* *INDENT-OFF* */
  typedef CLIB_PACKED (struct {
    ip4_address_t address;
    u32 address_length: 6;
    u32 index:26;
  }) ip4_route_t;
  /* *INDENT-ON* */
  
  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 ip4_route_t *routes;
    static u32 *sw_if_indices_to_shut;
    stats_main_t *sm = &stats_main;
    ip4_route_t *r;
    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);
  
    dslock (sm, 1 /* release hint */ , 8 /* tag */ );
  
    vec_foreach (fib, im4->fibs)
    {
      vnet_sw_interface_t *si;
  
      if (fib->table_id != target_fib_id)
        continue;
  
      /* remove any mpls/gre tunnels in this fib */
      vnet_mpls_gre_delete_fib_tunnels (fib->table_id);
  
      /* 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 */
      /* *INDENT-OFF* */
      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 - im4->fibs))
          vec_add1 (sw_if_indices_to_shut, si->sw_if_index);
      }));
      /* *INDENT-ON* */
  
      for (i = 0; i < vec_len (sw_if_indices_to_shut); i++)
        {
  	sw_if_index = sw_if_indices_to_shut[i];
  	// vec_foreach (sw_if_index, sw_if_indices_to_shut) {
  
  	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);
        }
  
      vec_reset_length (routes);
  
      for (i = 0; i < ARRAY_LEN (fib->adj_index_by_dst_address); i++)
        {
  	uword *hash = fib->adj_index_by_dst_address[i];
  	hash_pair_t *p;
  	ip4_route_t x;
  
  	x.address_length = i;
  
          /* *INDENT-OFF* */
          hash_foreach_pair (p, hash,
          ({
            x.address.data_u32 = p->key;
            vec_add1 (routes, x);
          }));
          /* *INDENT-ON* */
        }
  
      vec_foreach (r, routes)
      {
        ip4_add_del_route_args_t a;
  
        memset (&a, 0, sizeof (a));
        a.flags = IP4_ROUTE_FLAG_FIB_INDEX | IP4_ROUTE_FLAG_DEL;
        a.table_index_or_table_id = fib - im4->fibs;
        a.dst_address = r->address;
        a.dst_address_length = r->address_length;
        a.adj_index = ~0;
  
        ip4_add_del_route (im4, &a);
        ip4_maybe_remap_adjacencies (im4, fib - im4->fibs,
  				   IP4_ROUTE_FLAG_FIB_INDEX);
      }
      rv = 0;
      break;
    }				/* vec_foreach (fib) */
  
    dsunlock (sm);
    return rv;
  }
  
  typedef struct
  {
    ip6_address_t address;
    u32 address_length;
    u32 index;
  } ip6_route_t;
  
  typedef struct
  {
    u32 fib_index;
    ip6_route_t **routep;
  } add_routes_in_fib_arg_t;
  
  static void
  add_routes_in_fib (clib_bihash_kv_24_8_t * kvp, void *arg)
  {
    add_routes_in_fib_arg_t *ap = arg;
  
    if (kvp->key[2] >> 32 == ap->fib_index)
      {
        ip6_address_t *addr;
        ip6_route_t *r;
        addr = (ip6_address_t *) kvp;
        vec_add2 (*ap->routep, r, 1);
        r->address = addr[0];
        r->address_length = kvp->key[2] & 0xFF;
        r->index = kvp->value;
      }
  }
  
  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;
    stats_main_t *sm = &stats_main;
    static ip6_route_t *routes;
    static u32 *sw_if_indices_to_shut;
    ip6_route_t *r;
    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);
    add_routes_in_fib_arg_t _a, *a = &_a;
    clib_bihash_24_8_t *h = &im6->ip6_lookup_table;
  
    dslock (sm, 1 /* release hint */ , 9 /* tag */ );
  
    vec_foreach (fib, im6->fibs)
    {
      vnet_sw_interface_t *si;
  
      if (fib->table_id != target_fib_id)
        continue;
  
      vec_reset_length (sw_if_indices_to_shut);
  
      /* Shut down interfaces in this FIB / clean out intfc routes */
      /* *INDENT-OFF* */
      pool_foreach (si, im->sw_interfaces,
      ({
        if (im6->fib_index_by_sw_if_index[si->sw_if_index] ==
            fib - im6->fibs)
          vec_add1 (sw_if_indices_to_shut, si->sw_if_index);
      }));
      /* *INDENT-ON* */
  
      for (i = 0; i < vec_len (sw_if_indices_to_shut); i++)
        {
  	sw_if_index = sw_if_indices_to_shut[i];
  	// vec_foreach (sw_if_index, sw_if_indices_to_shut) {
  
  	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);
        }
  
      vec_reset_length (routes);
  
      a->fib_index = fib - im6->fibs;
      a->routep = &routes;
  
      clib_bihash_foreach_key_value_pair_24_8 (h, add_routes_in_fib, a);
  
      vec_foreach (r, routes)
      {
        ip6_add_del_route_args_t a;
  
        memset (&a, 0, sizeof (a));
        a.flags = IP6_ROUTE_FLAG_FIB_INDEX | IP6_ROUTE_FLAG_DEL;
        a.table_index_or_table_id = fib - im6->fibs;
        a.dst_address = r->address;
        a.dst_address_length = r->address_length;
        a.adj_index = ~0;
  
        ip6_add_del_route (im6, &a);
        ip6_maybe_remap_adjacencies (im6, fib - im6->fibs,
  				   IP6_ROUTE_FLAG_FIB_INDEX);
      }
      rv = 0;
      /* Reinstall the neighbor / router discovery routes */
      vnet_ip6_fib_init (im6, fib - im6->fibs);
      break;
    }				/* vec_foreach (fib) */
  
    dsunlock (sm);
    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
  dhcpv4_proxy_config (vl_api_dhcp_proxy_config_t * mp)
  {
    vl_api_dhcp_proxy_config_reply_t *rmp;
    int rv;
  
    rv = dhcp_proxy_set_server ((ip4_address_t *) (&mp->dhcp_server),
  			      (ip4_address_t *) (&mp->dhcp_src_address),
  			      (u32) ntohl (mp->vrf_id),
  			      (int) mp->insert_circuit_id,
  			      (int) (mp->is_add == 0));
  
    REPLY_MACRO (VL_API_DHCP_PROXY_CONFIG_REPLY);
  }
  
  
  static void
  dhcpv6_proxy_config (vl_api_dhcp_proxy_config_t * mp)
  {
    vl_api_dhcp_proxy_config_reply_t *rmp;
    int rv = -1;
  
    rv = dhcpv6_proxy_set_server ((ip6_address_t *) (&mp->dhcp_server),
  				(ip6_address_t *) (&mp->dhcp_src_address),
  				(u32) ntohl (mp->vrf_id),
  				(int) mp->insert_circuit_id,
  				(int) (mp->is_add == 0));
  
    REPLY_MACRO (VL_API_DHCP_PROXY_CONFIG_REPLY);
  }
  
  static void
  dhcpv4_proxy_config_2 (vl_api_dhcp_proxy_config_2_t * mp)
  {
    vl_api_dhcp_proxy_config_reply_t *rmp;
    int rv;
  
    rv = dhcp_proxy_set_server_2 ((ip4_address_t *) (&mp->dhcp_server),
  				(ip4_address_t *) (&mp->dhcp_src_address),
  				(u32) ntohl (mp->rx_vrf_id),
  				(u32) ntohl (mp->server_vrf_id),
  				(int) mp->insert_circuit_id,
  				(int) (mp->is_add == 0));
  
    REPLY_MACRO (VL_API_DHCP_PROXY_CONFIG_2_REPLY);
  }
  
  
  static void
  dhcpv6_proxy_config_2 (vl_api_dhcp_proxy_config_2_t * mp)
  {
    vl_api_dhcp_proxy_config_reply_t *rmp;
    int rv = -1;
  
  #if 0				// $$$$ FIXME
    rv = dhcpv6_proxy_set_server_2 ((ip6_address_t *) (&mp->dhcp_server),
  				  (ip6_address_t *) (&mp->dhcp_src_address),
  				  (u32) ntohl (mp->rx_vrf_id),
  				  (u32) ntohl (mp->server_vrf_id),
  				  (int) mp->insert_circuit_id,
  				  (int) (mp->is_add == 0));
  #else
    rv = VNET_API_ERROR_UNIMPLEMENTED;
  #endif
  
    REPLY_MACRO (VL_API_DHCP_PROXY_CONFIG_2_REPLY);
  }
  
  
  static void
  vl_api_dhcp_proxy_set_vss_t_handler (vl_api_dhcp_proxy_set_vss_t * mp)
  {
    vl_api_dhcp_proxy_set_vss_reply_t *rmp;
    int rv;
    if (!mp->is_ipv6)
      rv = dhcp_proxy_set_option82_vss (ntohl (mp->tbl_id),
  				      ntohl (mp->oui),
  				      ntohl (mp->fib_id),
  				      (int) mp->is_add == 0);
    else
      rv = dhcpv6_proxy_set_vss (ntohl (mp->tbl_id),
  			       ntohl (mp->oui),
  			       ntohl (mp->fib_id), (int) mp->is_add == 0);
  
    REPLY_MACRO (VL_API_DHCP_PROXY_SET_VSS_REPLY);
  }
  
  
  static void vl_api_dhcp_proxy_config_t_handler
    (vl_api_dhcp_proxy_config_t * mp)
  {
    if (mp->is_ipv6 == 0)
      dhcpv4_proxy_config (mp);
    else
      dhcpv6_proxy_config (mp);
  }
  
  static void vl_api_dhcp_proxy_config_2_t_handler
    (vl_api_dhcp_proxy_config_2_t * mp)
  {
    if (mp->is_ipv6 == 0)
      dhcpv4_proxy_config_2 (mp);
    else
      dhcpv6_proxy_config_2 (mp);
  }
  
  void
  dhcp_compl_event_callback (u32 client_index, u32 pid, u8 * hostname,
  			   u8 is_ipv6, u8 * host_address, u8 * router_address,
  			   u8 * host_mac)
  {
    unix_shared_memory_queue_t *q;
    vl_api_dhcp_compl_event_t *mp;
  
    q = vl_api_client_index_to_input_queue (client_index);
    if (!q)
      return;
  
    mp = vl_msg_api_alloc (sizeof (*mp));
    mp->client_index = client_index;
    mp->pid = pid;
    mp->is_ipv6 = is_ipv6;
    clib_memcpy (&mp->hostname, hostname, vec_len (hostname));
    mp->hostname[vec_len (hostname) + 1] = '\n';
    clib_memcpy (&mp->host_address[0], host_address, 16);
    clib_memcpy (&mp->router_address[0], router_address, 16);
    clib_memcpy (&mp->host_mac[0], host_mac, 6);
  
    mp->_vl_msg_id = ntohs (VL_API_DHCP_COMPL_EVENT);
  
    vl_msg_api_send_shmem (q, (u8 *) & mp);
  }
  
  static void vl_api_dhcp_client_config_t_handler
    (vl_api_dhcp_client_config_t * mp)
  {
    vlib_main_t *vm = vlib_get_main ();
    vl_api_dhcp_client_config_reply_t *rmp;
    int rv = 0;
  
    VALIDATE_SW_IF_INDEX (mp);
  
    rv = dhcp_client_config (vm, ntohl (mp->sw_if_index),
  			   mp->hostname, mp->is_add, mp->client_index,
  			   mp->want_dhcp_event ? dhcp_compl_event_callback :
  			   NULL, mp->pid);
  
    BAD_SW_IF_INDEX_LABEL;
  
    REPLY_MACRO (VL_API_DHCP_CLIENT_CONFIG_REPLY);
  }
  
  static void
    vl_api_sw_interface_ip6nd_ra_config_t_handler
    (vl_api_sw_interface_ip6nd_ra_config_t * mp, vlib_main_t * vm)
  {
    vl_api_sw_interface_ip6nd_ra_config_reply_t *rmp;
    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)
  {
    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
    vl_api_sw_interface_ip6_enable_disable_t_handler
    (vl_api_sw_interface_ip6_enable_disable_t * mp, vlib_main_t * vm)
  {
    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);
  }
  
  static void
    vl_api_sw_interface_ip6_set_link_local_address_t_handler
    (vl_api_sw_interface_ip6_set_link_local_address_t * mp, vlib_main_t * vm)
  {
    vl_api_sw_interface_ip6_set_link_local_address_reply_t *rmp;
    int rv = 0;
    clib_error_t *error;
    vnet_main_t *vnm = vnet_get_main ();
  
    vnm->api_errno = 0;
  
    VALIDATE_SW_IF_INDEX (mp);
  
    error = set_ip6_link_local_address (vm,
  				      ntohl (mp->sw_if_index),
  				      (ip6_address_t *) mp->address,
  				      mp->address_length);
    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_SET_LINK_LOCAL_ADDRESS_REPLY);
  }
  
  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 = VNET_API_ERROR_UNIMPLEMENTED;
  
    clib_warning ("unimplemented...");
  
    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;
    u32 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_set_unnumbered_t_handler
    (vl_api_sw_interface_set_unnumbered_t * mp)
  {
    vl_api_sw_interface_set_unnumbered_reply_t *rmp;
    int rv = 0;
    vnet_sw_interface_t *si;
    vnet_main_t *vnm = vnet_get_main ();
    u32 sw_if_index, unnumbered_sw_if_index;
  
    sw_if_index = ntohl (mp->sw_if_index);
    unnumbered_sw_if_index = ntohl (mp->unnumbered_sw_if_index);
  
    /*
     * The API message field names are backwards from
     * the underlying data structure names.
     * It's not worth changing them now.
     */
    if (pool_is_free_index (vnm->interface_main.sw_interfaces,
  			  unnumbered_sw_if_index))
      {
        rv = VNET_API_ERROR_INVALID_SW_IF_INDEX;
        goto done;
      }
  
    /* Only check the "use loop0" field when setting the binding */
    if (mp->is_add &&
        pool_is_free_index (vnm->interface_main.sw_interfaces, sw_if_index))
      {
        rv = VNET_API_ERROR_INVALID_SW_IF_INDEX_2;
        goto done;
      }
  
    si = vnet_get_sw_interface (vnm, unnumbered_sw_if_index);
  
    if (mp->is_add)
      {
        si->flags |= VNET_SW_INTERFACE_FLAG_UNNUMBERED;
        si->unnumbered_sw_if_index = sw_if_index;
      }
    else
      {
        si->flags &= ~(VNET_SW_INTERFACE_FLAG_UNNUMBERED);
        si->unnumbered_sw_if_index = (u32) ~ 0;
      }
  
  done:
    REPLY_MACRO (VL_API_SW_INTERFACE_SET_UNNUMBERED_REPLY);
  }
  
  static void
  vl_api_create_loopback_t_handler (vl_api_create_loopback_t * mp)
  {
    vl_api_create_loopback_reply_t *rmp;
    u32 sw_if_index;
    int rv;
  
    rv = vnet_create_loopback_interface (&sw_if_index, mp->mac_address);
  
    /* *INDENT-OFF* */
    REPLY_MACRO2(VL_API_CREATE_LOOPBACK_REPLY,
    ({
      rmp->sw_if_index = ntohl (sw_if_index);
    }));
    /* *INDENT-ON* */
  }
  
  static void
  vl_api_delete_loopback_t_handler (vl_api_delete_loopback_t * mp)
  {
    vl_api_delete_loopback_reply_t *rmp;
    u32 sw_if_index;
    int rv;
  
    sw_if_index = ntohl (mp->sw_if_index);
    rv = vnet_delete_loopback_interface (sw_if_index);
  
    REPLY_MACRO (VL_API_DELETE_LOOPBACK_REPLY);
  }
  
  static void
  vl_api_control_ping_t_handler (vl_api_control_ping_t * mp)
  {
    vl_api_control_ping_reply_t *rmp;
    int rv = 0;
  
    /* *INDENT-OFF* */
    REPLY_MACRO2(VL_API_CONTROL_PING_REPLY,
    ({
      rmp->vpe_pid = ntohl (getpid());
    }));
    /* *INDENT-ON* */
  }
  
  static void vl_api_noprint_control_ping_t_handler
    (vl_api_noprint_control_ping_t * mp)
  {
    vl_api_noprint_control_ping_reply_t *rmp;
    int rv = 0;
  
    /* *INDENT-OFF* */
    REPLY_MACRO2(VL_API_NOPRINT_CONTROL_PING_REPLY,
    ({
      rmp->vpe_pid = ntohl (getpid());
    }));
    /* *INDENT-ON* */
  }
  
  static void
  shmem_cli_output (uword arg, u8 * buffer, uword buffer_bytes)
  {
    u8 **shmem_vecp = (u8 **) arg;
    u8 *shmem_vec;
    void *oldheap;
    api_main_t *am = &api_main;
    u32 offset;
  
    shmem_vec = *shmem_vecp;
  
    offset = vec_len (shmem_vec);
  
    pthread_mutex_lock (&am->vlib_rp->mutex);
    oldheap = svm_push_data_heap (am->vlib_rp);
  
    vec_validate (shmem_vec, offset + buffer_bytes - 1);
  
    clib_memcpy (shmem_vec + offset, buffer, buffer_bytes);
  
    svm_pop_heap (oldheap);
    pthread_mutex_unlock (&am->vlib_rp->mutex);
  
    *shmem_vecp = shmem_vec;
  }
  
  
  static void
  vl_api_cli_request_t_handler (vl_api_cli_request_t * mp)
  {
    vl_api_cli_reply_t *rp;
    unix_shared_memory_queue_t *q;
    vlib_main_t *vm = vlib_get_main ();
    api_main_t *am = &api_main;
    unformat_input_t input;
    u8 *shmem_vec = 0;
    void *oldheap;
  
    q = vl_api_client_index_to_input_queue (mp->client_index);
    if (!q)
      return;
  
    rp = vl_msg_api_alloc (sizeof (*rp));
    rp->_vl_msg_id = ntohs (VL_API_CLI_REPLY);
    rp->context = mp->context;
  
    unformat_init_vector (&input, (u8 *) (uword) mp->cmd_in_shmem);
  
    vlib_cli_input (vm, &input, shmem_cli_output, (uword) & shmem_vec);
  
    pthread_mutex_lock (&am->vlib_rp->mutex);
    oldheap = svm_push_data_heap (am->vlib_rp);
  
    vec_add1 (shmem_vec, 0);
  
    svm_pop_heap (oldheap);
    pthread_mutex_unlock (&am->vlib_rp->mutex);
  
    rp->reply_in_shmem = (uword) shmem_vec;
  
    vl_msg_api_send_shmem (q, (u8 *) & rp);
  }
  
  static void
  inband_cli_output (uword arg, u8 * buffer, uword buffer_bytes)
  {
    u8 **mem_vecp = (u8 **) arg;
    u8 *mem_vec = *mem_vecp;
    u32 offset = vec_len (mem_vec);
  
    vec_validate (mem_vec, offset + buffer_bytes - 1);
    clib_memcpy (mem_vec + offset, buffer, buffer_bytes);
    *mem_vecp = mem_vec;
  }
  
  static void
  vl_api_cli_inband_t_handler (vl_api_cli_inband_t * mp)
  {
    vl_api_cli_inband_reply_t *rmp;
    int rv = 0;
    unix_shared_memory_queue_t *q;
    vlib_main_t *vm = vlib_get_main ();
    unformat_input_t input;
    u8 *out_vec = 0;
  
    q = vl_api_client_index_to_input_queue (mp->client_index);
    if (!q)
      return;
  
    unformat_init_string (&input, (char *) mp->cmd, ntohl (mp->length));
    vlib_cli_input (vm, &input, inband_cli_output, (uword) & out_vec);
  
    u32 len = vec_len (out_vec);
    /* *INDENT-OFF* */
    REPLY_MACRO3(VL_API_CLI_INBAND_REPLY, len,
    ({
      rmp->length = htonl (len);
      clib_memcpy (rmp->reply, out_vec, len);
    }));
    /* *INDENT-ON* */
    vec_free (out_vec);
  }
  
  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);
  }
  
  static void vl_api_sr_tunnel_add_del_t_handler
    (vl_api_sr_tunnel_add_del_t * mp)
  {
  #if IPV6SR == 0
    clib_warning ("unimplemented");
  #else
    ip6_sr_add_del_tunnel_args_t _a, *a = &_a;
    int rv = 0;
    vl_api_sr_tunnel_add_del_reply_t *rmp;
    ip6_address_t *segments = 0, *seg;
    ip6_address_t *tags = 0, *tag;
    ip6_address_t *this_address;
    int i;
  
    if (mp->n_segments == 0)
      {
        rv = -11;
        goto out;
      }
  
    memset (a, 0, sizeof (*a));
    a->src_address = (ip6_address_t *) & mp->src_address;
    a->dst_address = (ip6_address_t *) & mp->dst_address;
    a->dst_mask_width = mp->dst_mask_width;
    a->flags_net_byte_order = mp->flags_net_byte_order;
    a->is_del = (mp->is_add == 0);
    a->rx_table_id = ntohl (mp->outer_vrf_id);
    a->tx_table_id = ntohl (mp->inner_vrf_id);
  
    a->name = format (0, "%s", mp->name);
    if (!(vec_len (a->name)))
      a->name = 0;
  
    a->policy_name = format (0, "%s", mp->policy_name);
    if (!(vec_len (a->policy_name)))
      a->policy_name = 0;
  
    /* Yank segments and tags out of the API message */
    this_address = (ip6_address_t *) mp->segs_and_tags;
    for (i = 0; i < mp->n_segments; i++)
      {
        vec_add2 (segments, seg, 1);
        clib_memcpy (seg->as_u8, this_address->as_u8, sizeof (*this_address));
        this_address++;
      }
    for (i = 0; i < mp->n_tags; i++)
      {
        vec_add2 (tags, tag, 1);
        clib_memcpy (tag->as_u8, this_address->as_u8, sizeof (*this_address));
        this_address++;
      }
  
    a->segments = segments;
    a->tags = tags;
  
    rv = ip6_sr_add_del_tunnel (a);
  
  out:
  
    REPLY_MACRO (VL_API_SR_TUNNEL_ADD_DEL_REPLY);
  #endif
  }
  
  static void vl_api_sr_policy_add_del_t_handler
    (vl_api_sr_policy_add_del_t * mp)
  {
  #if IPV6SR == 0
    clib_warning ("unimplemented");
  #else
    ip6_sr_add_del_policy_args_t _a, *a = &_a;
    int rv = 0;
    vl_api_sr_policy_add_del_reply_t *rmp;
    int i;
  
    memset (a, 0, sizeof (*a));
    a->is_del = (mp->is_add == 0);
  
    a->name = format (0, "%s", mp->name);
    if (!(vec_len (a->name)))
      {
        rv = VNET_API_ERROR_NO_SUCH_NODE2;
        goto out;
      }
  
    if (!(mp->tunnel_names[0]))
      {
        rv = VNET_API_ERROR_NO_SUCH_NODE2;
        goto out;
      }
  
    // start deserializing tunnel_names
    int num_tunnels = mp->tunnel_names[0];	//number of tunnels
    u8 *deser_tun_names = mp->tunnel_names;
    deser_tun_names += 1;		//moving along
  
    u8 *tun_name = 0;
    int tun_name_len = 0;
  
    for (i = 0; i < num_tunnels; i++)
      {
        tun_name_len = *deser_tun_names;
        deser_tun_names += 1;
        vec_resize (tun_name, tun_name_len);
        memcpy (tun_name, deser_tun_names, tun_name_len);
        vec_add1 (a->tunnel_names, tun_name);
        deser_tun_names += tun_name_len;
        tun_name = 0;
      }
  
    rv = ip6_sr_add_del_policy (a);
  
  out:
  
    REPLY_MACRO (VL_API_SR_POLICY_ADD_DEL_REPLY);
  #endif
  }
  
  static void vl_api_sr_multicast_map_add_del_t_handler
    (vl_api_sr_multicast_map_add_del_t * mp)
  {
  #if IPV6SR == 0
    clib_warning ("unimplemented");
  #else
    ip6_sr_add_del_multicastmap_args_t _a, *a = &_a;
    int rv = 0;
    vl_api_sr_multicast_map_add_del_reply_t *rmp;
  
    memset (a, 0, sizeof (*a));
    a->is_del = (mp->is_add == 0);
  
    a->multicast_address = (ip6_address_t *) & mp->multicast_address;
    a->policy_name = format (0, "%s", mp->policy_name);
  
    if (a->multicast_address == 0)
      {
        rv = -1;
        goto out;
      }
  
    if (!(a->policy_name))
      {
        rv = -2;
        goto out;
      }
  
  #if DPDK > 0			/* Cannot call replicate without DPDK */
    rv = ip6_sr_add_del_multicastmap (a);
  #else
    clib_warning ("multicast replication without DPDK not implemented");
    rv = VNET_API_ERROR_UNIMPLEMENTED;
  #endif /* DPDK */
  
  out:
  
    REPLY_MACRO (VL_API_SR_MULTICAST_MAP_ADD_DEL_REPLY);
  #endif
  }
  
  #define foreach_classify_add_del_table_field    \
  _(table_index)                                  \
  _(nbuckets)                                     \
  _(memory_size)                                  \
  _(skip_n_vectors)                               \
  _(match_n_vectors)                              \
  _(next_table_index)                             \
  _(miss_next_index)
  
  static void vl_api_classify_add_del_table_t_handler
    (vl_api_classify_add_del_table_t * mp)
  {
    vl_api_classify_add_del_table_reply_t *rmp;
    vnet_classify_main_t *cm = &vnet_classify_main;
    vnet_classify_table_t *t;
    int rv;
  
  #define _(a) u32 a;
    foreach_classify_add_del_table_field;
  #undef _
  
  #define _(a) a = ntohl(mp->a);
    foreach_classify_add_del_table_field;
  #undef _
  
    /* The underlying API fails silently, on purpose, so check here */
    if (mp->is_add == 0)
      if (pool_is_free_index (cm->tables, table_index))
        {
  	rv = VNET_API_ERROR_NO_SUCH_TABLE;
  	goto out;
        }
  
    rv = vnet_classify_add_del_table
      (cm, mp->mask, nbuckets, memory_size,
       skip_n_vectors, match_n_vectors,
       next_table_index, miss_next_index, &table_index, mp->is_add);
  
  out:
    /* *INDENT-OFF* */
    REPLY_MACRO2(VL_API_CLASSIFY_ADD_DEL_TABLE_REPLY,
    ({
      if (rv == 0 && mp->is_add)
        {
          t = pool_elt_at_index (cm->tables, table_index);
          rmp->skip_n_vectors = ntohl(t->skip_n_vectors);
          rmp->match_n_vectors = ntohl(t->match_n_vectors);
          rmp->new_table_index = ntohl(table_index);
        }
      else
        {
          rmp->skip_n_vectors = ~0;
          rmp->match_n_vectors = ~0;
          rmp->new_table_index = ~0;
        }
    }));
    /* *INDENT-ON* */
  }
  
  static void vl_api_classify_add_del_session_t_handler
    (vl_api_classify_add_del_session_t * mp)
  {
    vnet_classify_main_t *cm = &vnet_classify_main;
    vl_api_classify_add_del_session_reply_t *rmp;
    int rv;
    u32 table_index, hit_next_index, opaque_index;
    i32 advance;
  
    table_index = ntohl (mp->table_index);
    hit_next_index = ntohl (mp->hit_next_index);
    opaque_index = ntohl (mp->opaque_index);
    advance = ntohl (mp->advance);
  
    rv = vnet_classify_add_del_session
      (cm, table_index, mp->match, hit_next_index, opaque_index,
       advance, mp->is_add);
  
    REPLY_MACRO (VL_API_CLASSIFY_ADD_DEL_SESSION_REPLY);
  }
  
  static void vl_api_classify_set_interface_ip_table_t_handler
    (vl_api_classify_set_interface_ip_table_t * mp)
  {
    vlib_main_t *vm = vlib_get_main ();
    vl_api_classify_set_interface_ip_table_reply_t *rmp;
    int rv;
    u32 table_index, sw_if_index;
  
    table_index = ntohl (mp->table_index);
    sw_if_index = ntohl (mp->sw_if_index);
  
    VALIDATE_SW_IF_INDEX (mp);
  
    if (mp->is_ipv6)
      rv = vnet_set_ip6_classify_intfc (vm, sw_if_index, table_index);
    else
      rv = vnet_set_ip4_classify_intfc (vm, sw_if_index, table_index);
  
    BAD_SW_IF_INDEX_LABEL;
  
    REPLY_MACRO (VL_API_CLASSIFY_SET_INTERFACE_IP_TABLE_REPLY);
  }
  
  static void vl_api_classify_set_interface_l2_tables_t_handler
    (vl_api_classify_set_interface_l2_tables_t * mp)
  {
    vl_api_classify_set_interface_l2_tables_reply_t *rmp;
    int rv;
    u32 sw_if_index, ip4_table_index, ip6_table_index, other_table_index;
    int enable;
  
    ip4_table_index = ntohl (mp->ip4_table_index);
    ip6_table_index = ntohl (mp->ip6_table_index);
    other_table_index = ntohl (mp->other_table_index);
    sw_if_index = ntohl (mp->sw_if_index);
  
    VALIDATE_SW_IF_INDEX (mp);
  
    if (mp->is_input)
      rv = vnet_l2_input_classify_set_tables (sw_if_index, ip4_table_index,
  					    ip6_table_index,
  					    other_table_index);
    else
      rv = vnet_l2_output_classify_set_tables (sw_if_index, ip4_table_index,
  					     ip6_table_index,
  					     other_table_index);
  
    if (rv == 0)
      {
        if (ip4_table_index != ~0 || ip6_table_index != ~0
  	  || other_table_index != ~0)
  	enable = 1;
        else
  	enable = 0;
  
        if (mp->is_input)
  	vnet_l2_input_classify_enable_disable (sw_if_index, enable);
        else
  	vnet_l2_output_classify_enable_disable (sw_if_index, enable);
      }
  
    BAD_SW_IF_INDEX_LABEL;
  
    REPLY_MACRO (VL_API_CLASSIFY_SET_INTERFACE_L2_TABLES_REPLY);
  }
  
  static void
  vl_api_l2_fib_clear_table_t_handler (vl_api_l2_fib_clear_table_t * mp)
  {
    int rv = 0;
    vl_api_l2_fib_clear_table_reply_t *rmp;
  
    /* DAW-FIXME: This API should only clear non-static l2fib entries, but
     *            that is not currently implemented.  When that TODO is fixed
     *            this call should be changed to pass 1 instead of 0.
     */
    l2fib_clear_table (0);
  
    REPLY_MACRO (VL_API_L2_FIB_CLEAR_TABLE_REPLY);
  }
  
  extern void l2_efp_filter_configure (vnet_main_t * vnet_main,
  				     u32 sw_if_index, u32 enable);
  
  static void
  vl_api_l2_interface_efp_filter_t_handler (vl_api_l2_interface_efp_filter_t *
  					  mp)
  {
    int rv;
    vl_api_l2_interface_efp_filter_reply_t *rmp;
    vnet_main_t *vnm = vnet_get_main ();
  
    // enable/disable the feature
    l2_efp_filter_configure (vnm, mp->sw_if_index, mp->enable_disable);
    rv = vnm->api_errno;
  
    REPLY_MACRO (VL_API_L2_INTERFACE_EFP_FILTER_REPLY);
  }
  
  static void
    vl_api_l2_interface_vlan_tag_rewrite_t_handler
    (vl_api_l2_interface_vlan_tag_rewrite_t * mp)
  {
    int rv = 0;
    vl_api_l2_interface_vlan_tag_rewrite_reply_t *rmp;
    vnet_main_t *vnm = vnet_get_main ();
    vlib_main_t *vm = vlib_get_main ();
    u32 vtr_op;
  
    VALIDATE_SW_IF_INDEX (mp);
  
    vtr_op = ntohl (mp->vtr_op);
  
    /* The L2 code is unsuspicious */
    switch (vtr_op)
      {
      case L2_VTR_DISABLED:
      case L2_VTR_PUSH_1:
      case L2_VTR_PUSH_2:
      case L2_VTR_POP_1:
      case L2_VTR_POP_2:
      case L2_VTR_TRANSLATE_1_1:
      case L2_VTR_TRANSLATE_1_2:
      case L2_VTR_TRANSLATE_2_1:
      case L2_VTR_TRANSLATE_2_2:
        break;
  
      default:
        rv = VNET_API_ERROR_INVALID_VALUE;
        goto bad_sw_if_index;
      }
  
    rv = l2vtr_configure (vm, vnm, ntohl (mp->sw_if_index), vtr_op,
  			ntohl (mp->push_dot1q), ntohl (mp->tag1),
  			ntohl (mp->tag2));
  
    BAD_SW_IF_INDEX_LABEL;
  
    REPLY_MACRO (VL_API_L2_INTERFACE_VLAN_TAG_REWRITE_REPLY);
  }
  
  static void
  vl_api_create_vhost_user_if_t_handler (vl_api_create_vhost_user_if_t * mp)
  {
    int rv = 0;
    vl_api_create_vhost_user_if_reply_t *rmp;
    u32 sw_if_index = (u32) ~ 0;
  
    vnet_main_t *vnm = vnet_get_main ();
    vlib_main_t *vm = vlib_get_main ();
  
  #if DPDK > 0 && DPDK_VHOST_USER
    rv = dpdk_vhost_user_create_if (
  #else
    rv = vhost_user_create_if (
  #endif
  			      vnm, vm, (char *) mp->sock_filename,
  			      mp->is_server, &sw_if_index, (u64) ~ 0,
  			      mp->renumber, ntohl (mp->custom_dev_instance),
  			      (mp->use_custom_mac) ? mp->mac_address : NULL);
  
    /* *INDENT-OFF* */
    REPLY_MACRO2(VL_API_CREATE_VHOST_USER_IF_REPLY,
    ({
      rmp->sw_if_index = ntohl (sw_if_index);
    }));
    /* *INDENT-ON* */
  }
  
  static void
  vl_api_modify_vhost_user_if_t_handler (vl_api_modify_vhost_user_if_t * mp)
  {
    int rv = 0;
    vl_api_modify_vhost_user_if_reply_t *rmp;
    u32 sw_if_index = ntohl (mp->sw_if_index);
  
    vnet_main_t *vnm = vnet_get_main ();
    vlib_main_t *vm = vlib_get_main ();
  
  #if DPDK > 0 && DPDK_VHOST_USER
    rv = dpdk_vhost_user_modify_if (
  #else
    rv = vhost_user_modify_if (
  #endif
  			      vnm, vm, (char *) mp->sock_filename,
  			      mp->is_server, sw_if_index, (u64) ~ 0,
  			      mp->renumber, ntohl (mp->custom_dev_instance));
    REPLY_MACRO (VL_API_MODIFY_VHOST_USER_IF_REPLY);
  }
  
  static void
  vl_api_delete_vhost_user_if_t_handler (vl_api_delete_vhost_user_if_t * mp)
  {
    int rv = 0;
    vl_api_delete_vhost_user_if_reply_t *rmp;
    vpe_api_main_t *vam = &vpe_api_main;
    u32 sw_if_index = ntohl (mp->sw_if_index);
  
    vnet_main_t *vnm = vnet_get_main ();
    vlib_main_t *vm = vlib_get_main ();
  
  #if DPDK > 0 && DPDK_VHOST_USER
    rv = dpdk_vhost_user_delete_if (vnm, vm, sw_if_index);
  #else
    rv = vhost_user_delete_if (vnm, vm, sw_if_index);
  #endif
  
    REPLY_MACRO (VL_API_DELETE_VHOST_USER_IF_REPLY);
    if (!rv)
      {
        unix_shared_memory_queue_t *q =
  	vl_api_client_index_to_input_queue (mp->client_index);
        if (!q)
  	return;
  
        send_sw_interface_flags_deleted (vam, q, sw_if_index);
      }
  }
  
  static void
    vl_api_sw_interface_vhost_user_details_t_handler
    (vl_api_sw_interface_vhost_user_details_t * mp)
  {
    clib_warning ("BUG");
  }
  
  static void
  send_sw_interface_vhost_user_details (vpe_api_main_t * am,
  				      unix_shared_memory_queue_t * q,
  				      vhost_user_intf_details_t * vui,
  				      u32 context)
  {
    vl_api_sw_interface_vhost_user_details_t *mp;
  
    mp = vl_msg_api_alloc (sizeof (*mp));
    memset (mp, 0, sizeof (*mp));
    mp->_vl_msg_id = ntohs (VL_API_SW_INTERFACE_VHOST_USER_DETAILS);
    mp->sw_if_index = ntohl (vui->sw_if_index);
    mp->virtio_net_hdr_sz = ntohl (vui->virtio_net_hdr_sz);
    mp->features = clib_net_to_host_u64 (vui->features);
    mp->is_server = vui->is_server;
    mp->num_regions = ntohl (vui->num_regions);
    mp->sock_errno = ntohl (vui->sock_errno);
    mp->context = context;
  
    strncpy ((char *) mp->sock_filename,
  	   (char *) vui->sock_filename, ARRAY_LEN (mp->sock_filename) - 1);
    strncpy ((char *) mp->interface_name,
  	   (char *) vui->if_name, ARRAY_LEN (mp->interface_name) - 1);
  
    vl_msg_api_send_shmem (q, (u8 *) & mp);
  }
  
  static void
    vl_api_sw_interface_vhost_user_dump_t_handler
    (vl_api_sw_interface_vhost_user_dump_t * mp)
  {
    int rv = 0;
    vpe_api_main_t *am = &vpe_api_main;
    vnet_main_t *vnm = vnet_get_main ();
    vlib_main_t *vm = vlib_get_main ();
    vhost_user_intf_details_t *ifaces = NULL;
    vhost_user_intf_details_t *vuid = NULL;
    unix_shared_memory_queue_t *q;
  
    q = vl_api_client_index_to_input_queue (mp->client_index);
    if (q == 0)
      return;
  
  #if DPDK > 0 && DPDK_VHOST_USER
    rv = dpdk_vhost_user_dump_ifs (vnm, vm, &ifaces);
  #else
    rv = vhost_user_dump_ifs (vnm, vm, &ifaces);
  #endif
    if (rv)
      return;
  
    vec_foreach (vuid, ifaces)
    {
      send_sw_interface_vhost_user_details (am, q, vuid, mp->context);
    }
    vec_free (ifaces);
  }
  
  static void
  send_sw_if_l2tpv3_tunnel_details (vpe_api_main_t * am,
  				  unix_shared_memory_queue_t * q,
  				  l2t_session_t * s,
  				  l2t_main_t * lm, u32 context)
  {
    vl_api_sw_if_l2tpv3_tunnel_details_t *mp;
    u8 *if_name = NULL;
    vnet_sw_interface_t *si = NULL;
  
    si = vnet_get_hw_sw_interface (lm->vnet_main, s->hw_if_index);
  
    if_name = format (if_name, "%U",
  		    format_vnet_sw_interface_name, lm->vnet_main, si);
  
    mp = vl_msg_api_alloc (sizeof (*mp));
    memset (mp, 0, sizeof (*mp));
    mp->_vl_msg_id = ntohs (VL_API_SW_IF_L2TPV3_TUNNEL_DETAILS);
    strncpy ((char *) mp->interface_name,
  	   (char *) if_name, ARRAY_LEN (mp->interface_name) - 1);
    mp->sw_if_index = ntohl (si->sw_if_index);
    mp->local_session_id = s->local_session_id;
    mp->remote_session_id = s->remote_session_id;
    mp->local_cookie[0] = s->local_cookie[0];
    mp->local_cookie[1] = s->local_cookie[1];
    mp->remote_cookie = s->remote_cookie;
    clib_memcpy (mp->client_address, &s->client_address,
  	       sizeof (s->client_address));
    clib_memcpy (mp->our_address, &s->our_address, sizeof (s->our_address));
    mp->l2_sublayer_present = s->l2_sublayer_present;
    mp->context = context;
  
    vl_msg_api_send_shmem (q, (u8 *) & mp);
  }
  
  static void
  send_ip_address_details (vpe_api_main_t * am,
  			 unix_shared_memory_queue_t * q,
  			 u8 * ip, u16 prefix_length, u8 is_ipv6, u32 context)
  {
    vl_api_ip_address_details_t *mp;
  
    mp = vl_msg_api_alloc (sizeof (*mp));
    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 = ntohl (*(u32 *) ip);
      }
    mp->prefix_length = prefix_length;
    mp->context = context;
  
    vl_msg_api_send_shmem (q, (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;
    unix_shared_memory_queue_t *q;
    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);
  
    q = vl_api_client_index_to_input_queue (mp->client_index);
    if (q == 0)
      {
        return;
      }
  
    if (mp->is_ipv6)
      {
        /* *INDENT-OFF* */
        foreach_ip_interface_address (lm6, ia, sw_if_index,
                                      1 /* honor unnumbered */,
        ({
          r6 = ip_interface_address_get_address (lm6, ia);
          u16 prefix_length = ia->address_length;
          send_ip_address_details(am, q, (u8*)r6, prefix_length, 1, mp->context);
        }));
        /* *INDENT-ON* */
      }
    else
      {
        /* *INDENT-OFF* */
        foreach_ip_interface_address (lm4, ia, sw_if_index,
                                      1 /* honor unnumbered */,
        ({
          r4 = ip_interface_address_get_address (lm4, ia);
          u16 prefix_length = ia->address_length;
          send_ip_address_details(am, q, (u8*)r4, prefix_length, 0, mp->context);
        }));
        /* *INDENT-ON* */
      }
    BAD_SW_IF_INDEX_LABEL;
  }
  
  static void
  send_ip_details (vpe_api_main_t * am,
  		 unix_shared_memory_queue_t * q, u32 sw_if_index, u32 context)
  {
    vl_api_ip_details_t *mp;
  
    mp = vl_msg_api_alloc (sizeof (*mp));
    memset (mp, 0, sizeof (*mp));
    mp->_vl_msg_id = ntohs (VL_API_IP_DETAILS);
  
    mp->sw_if_index = ntohl (sw_if_index);
    mp->context = context;
  
    vl_msg_api_send_shmem (q, (u8 *) & mp);
  }
  
  static void
  vl_api_sw_if_l2tpv3_tunnel_dump_t_handler (vl_api_sw_if_l2tpv3_tunnel_dump_t *
  					   mp)
  {
    vpe_api_main_t *am = &vpe_api_main;
    l2t_main_t *lm = &l2t_main;
    unix_shared_memory_queue_t *q;
    l2t_session_t *session;
  
    q = vl_api_client_index_to_input_queue (mp->client_index);
    if (q == 0)
      return;
  
    /* *INDENT-OFF* */
    pool_foreach (session, lm->sessions,
    ({
      send_sw_if_l2tpv3_tunnel_details (am, q, session, lm, mp->context);
    }));
    /* *INDENT-ON* */
  }
  
  
  static void
  send_sw_interface_tap_details (vpe_api_main_t * am,
  			       unix_shared_memory_queue_t * q,
  			       tapcli_interface_details_t * tap_if,
  			       u32 context)
  {
    vl_api_sw_interface_tap_details_t *mp;
    mp = vl_msg_api_alloc (sizeof (*mp));
    memset (mp, 0, sizeof (*mp));
    mp->_vl_msg_id = ntohs (VL_API_SW_INTERFACE_TAP_DETAILS);
    mp->sw_if_index = ntohl (tap_if->sw_if_index);
    strncpy ((char *) mp->dev_name,
  	   (char *) tap_if->dev_name, ARRAY_LEN (mp->dev_name) - 1);
    mp->context = context;
  
    vl_msg_api_send_shmem (q, (u8 *) & mp);
  }
  
  static void
  vl_api_sw_interface_tap_dump_t_handler (vl_api_sw_interface_tap_dump_t * mp)
  {
    int rv = 0;
    vpe_api_main_t *am = &vpe_api_main;
    unix_shared_memory_queue_t *q;
    tapcli_interface_details_t *tapifs = NULL;
    tapcli_interface_details_t *tap_if = NULL;
  
    q = vl_api_client_index_to_input_queue (mp->client_index);
    if (q == 0)
      return;
  
    rv = vnet_tap_dump_ifs (&tapifs);
    if (rv)
      return;
  
    vec_foreach (tap_if, tapifs)
    {
      send_sw_interface_tap_details (am, q, tap_if, mp->context);
    }
  
    vec_free (tapifs);
  }
  
  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;
    unix_shared_memory_queue_t *q;
    vnet_sw_interface_t *si, *sorted_sis;
    u32 sw_if_index = ~0;
  
    q = vl_api_client_index_to_input_queue (mp->client_index);
    if (q == 0)
      {
        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, q, sw_if_index, mp->context);
        }
    }
  }
  
  static void
  vl_api_l2_fib_table_entry_t_handler (vl_api_l2_fib_table_entry_t * mp)
  {
    clib_warning ("BUG");
  }
  
  static void
  send_l2fib_table_entry (vpe_api_main_t * am,
  			unix_shared_memory_queue_t * q,
  			l2fib_entry_key_t * l2fe_key,
  			l2fib_entry_result_t * l2fe_res, u32 context)
  {
    vl_api_l2_fib_table_entry_t *mp;
  
    mp = vl_msg_api_alloc (sizeof (*mp));
    memset (mp, 0, sizeof (*mp));
    mp->_vl_msg_id = ntohs (VL_API_L2_FIB_TABLE_ENTRY);
  
    mp->bd_id =
      ntohl (l2input_main.bd_configs[l2fe_key->fields.bd_index].bd_id);
  
    mp->mac = l2fib_make_key (l2fe_key->fields.mac, 0);
    mp->sw_if_index = ntohl (l2fe_res->fields.sw_if_index);
    mp->static_mac = l2fe_res->fields.static_mac;
    mp->filter_mac = l2fe_res->fields.filter;
    mp->bvi_mac = l2fe_res->fields.bvi;
    mp->context = context;
  
    vl_msg_api_send_shmem (q, (u8 *) & mp);
  }
  
  static void
  vl_api_l2_fib_table_dump_t_handler (vl_api_l2_fib_table_dump_t * mp)
  {
    vpe_api_main_t *am = &vpe_api_main;
    bd_main_t *bdm = &bd_main;
    l2fib_entry_key_t *l2fe_key = NULL;
    l2fib_entry_result_t *l2fe_res = NULL;
    u32 ni, bd_id = ntohl (mp->bd_id);
    u32 bd_index;
    unix_shared_memory_queue_t *q;
    uword *p;
  
    q = vl_api_client_index_to_input_queue (mp->client_index);
    if (q == 0)
      return;
  
    /* see l2fib_table_dump: ~0 means "any" */
    if (bd_id == ~0)
      bd_index = ~0;
    else
      {
        p = hash_get (bdm->bd_index_by_bd_id, bd_id);
        if (p == 0)
  	return;
  
        bd_index = p[0];
      }
  
    l2fib_table_dump (bd_index, &l2fe_key, &l2fe_res);
  
    vec_foreach_index (ni, l2fe_key)
    {
      send_l2fib_table_entry (am, q, vec_elt_at_index (l2fe_key, ni),
  			    vec_elt_at_index (l2fe_res, ni), mp->context);
    }
    vec_free (l2fe_key);
    vec_free (l2fe_res);
  }
  
  static void
  vl_api_show_version_t_handler (vl_api_show_version_t * mp)
  {
    vl_api_show_version_reply_t *rmp;
    int rv = 0;
    char *vpe_api_get_build_directory (void);
    char *vpe_api_get_version (void);
    char *vpe_api_get_build_date (void);
  
    unix_shared_memory_queue_t *q =
      vl_api_client_index_to_input_queue (mp->client_index);
  
    if (!q)
      return;
  
    /* *INDENT-OFF* */
    REPLY_MACRO2(VL_API_SHOW_VERSION_REPLY,
    ({
      strncpy ((char *) rmp->program, "vpe", ARRAY_LEN(rmp->program)-1);
      strncpy ((char *) rmp->build_directory, vpe_api_get_build_directory(),
               ARRAY_LEN(rmp->build_directory)-1);
      strncpy ((char *) rmp->version, vpe_api_get_version(),
               ARRAY_LEN(rmp->version)-1);
      strncpy ((char *) rmp->build_date, vpe_api_get_build_date(),
               ARRAY_LEN(rmp->build_date)-1);
    }));
    /* *INDENT-ON* */
  }
  
  static void
  vl_api_get_node_index_t_handler (vl_api_get_node_index_t * mp)
  {
    vlib_main_t *vm = vlib_get_main ();
    vl_api_get_node_index_reply_t *rmp;
    vlib_node_t *n;
    int rv = 0;
    u32 node_index = ~0;
  
    n = vlib_get_node_by_name (vm, mp->node_name);
  
    if (n == 0)
      rv = VNET_API_ERROR_NO_SUCH_NODE;
    else
      node_index = n->index;
  
    /* *INDENT-OFF* */
    REPLY_MACRO2(VL_API_GET_NODE_INDEX_REPLY,
    ({
      rmp->node_index = ntohl(node_index);
    }));
    /* *INDENT-ON* */
  }
  
  static void
  vl_api_get_next_index_t_handler (vl_api_get_next_index_t * mp)
  {
    vlib_main_t *vm = vlib_get_main ();
    vl_api_get_next_index_reply_t *rmp;
    vlib_node_t *node, *next_node;
    int rv = 0;
    u32 next_node_index = ~0, next_index = ~0;
    uword *p;
  
    node = vlib_get_node_by_name (vm, mp->node_name);
  
    if (node == 0)
      {
        rv = VNET_API_ERROR_NO_SUCH_NODE;
        goto out;
      }
  
    next_node = vlib_get_node_by_name (vm, mp->next_name);
  
    if (next_node == 0)
      {
        rv = VNET_API_ERROR_NO_SUCH_NODE2;
        goto out;
      }
    else
      next_node_index = next_node->index;
  
    p = hash_get (node->next_slot_by_node, next_node_index);
  
    if (p == 0)
      {
        rv = VNET_API_ERROR_NO_SUCH_ENTRY;
        goto out;
      }
    else
      next_index = p[0];
  
  out:
    /* *INDENT-OFF* */
    REPLY_MACRO2(VL_API_GET_NEXT_INDEX_REPLY,
    ({
      rmp->next_index = ntohl(next_index);
    }));
    /* *INDENT-ON* */
  }
  
  static void
  vl_api_add_node_next_t_handler (vl_api_add_node_next_t * mp)
  {
    vlib_main_t *vm = vlib_get_main ();
    vl_api_add_node_next_reply_t *rmp;
    vlib_node_t *n, *next;
    int rv = 0;
    u32 next_index = ~0;
  
    n = vlib_get_node_by_name (vm, mp->node_name);
  
    if (n == 0)
      {
        rv = VNET_API_ERROR_NO_SUCH_NODE;
        goto out;
      }
  
    next = vlib_get_node_by_name (vm, mp->next_name);
  
    if (next == 0)
      rv = VNET_API_ERROR_NO_SUCH_NODE2;
    else
      next_index = vlib_node_add_next (vm, n->index, next->index);
  
  out:
    /* *INDENT-OFF* */
    REPLY_MACRO2(VL_API_GET_NODE_INDEX_REPLY,
    ({
      rmp->next_index = ntohl(next_index);
    }));
    /* *INDENT-ON* */
  }
  
  static void vl_api_l2tpv3_create_tunnel_t_handler
    (vl_api_l2tpv3_create_tunnel_t * mp)
  {
    vl_api_l2tpv3_create_tunnel_reply_t *rmp;
    l2t_main_t *lm = &l2t_main;
    u32 sw_if_index = (u32) ~ 0;
    int rv;
  
    if (mp->is_ipv6 != 1)
      {
        rv = VNET_API_ERROR_UNIMPLEMENTED;
        goto out;
      }
  
    u32 encap_fib_index;
  
    if (mp->encap_vrf_id != ~0)
      {
        uword *p;
        ip6_main_t *im = &ip6_main;
        if (!
  	  (p =
  	   hash_get (im->fib_index_by_table_id, ntohl (mp->encap_vrf_id))))
  	{
  	  rv = VNET_API_ERROR_NO_SUCH_FIB;
  	  goto out;
  	}
        encap_fib_index = p[0];
      }
    else
      {
        encap_fib_index = ~0;
      }
  
    rv = create_l2tpv3_ipv6_tunnel (lm,
  				  (ip6_address_t *) mp->client_address,
  				  (ip6_address_t *) mp->our_address,
  				  ntohl (mp->local_session_id),
  				  ntohl (mp->remote_session_id),
  				  clib_net_to_host_u64 (mp->local_cookie),
  				  clib_net_to_host_u64 (mp->remote_cookie),
  				  mp->l2_sublayer_present,
  				  encap_fib_index, &sw_if_index);
  
  out:
    /* *INDENT-OFF* */
    REPLY_MACRO2(VL_API_L2TPV3_CREATE_TUNNEL_REPLY,
    ({
      rmp->sw_if_index = ntohl (sw_if_index);
    }));
    /* *INDENT-ON* */
  }
  
  static void vl_api_l2tpv3_set_tunnel_cookies_t_handler
    (vl_api_l2tpv3_set_tunnel_cookies_t * mp)
  {
    vl_api_l2tpv3_set_tunnel_cookies_reply_t *rmp;
    l2t_main_t *lm = &l2t_main;
    int rv;
  
    VALIDATE_SW_IF_INDEX (mp);
  
    rv = l2tpv3_set_tunnel_cookies (lm, ntohl (mp->sw_if_index),
  				  clib_net_to_host_u64 (mp->new_local_cookie),
  				  clib_net_to_host_u64
  				  (mp->new_remote_cookie));
  
    BAD_SW_IF_INDEX_LABEL;
  
    REPLY_MACRO (VL_API_L2TPV3_SET_TUNNEL_COOKIES_REPLY);
  }
  
  static void vl_api_l2tpv3_interface_enable_disable_t_handler
    (vl_api_l2tpv3_interface_enable_disable_t * mp)
  {
    int rv;
    vnet_main_t *vnm = vnet_get_main ();
    vl_api_l2tpv3_interface_enable_disable_reply_t *rmp;
  
    VALIDATE_SW_IF_INDEX (mp);
  
    rv = l2tpv3_interface_enable_disable
      (vnm, ntohl (mp->sw_if_index), mp->enable_disable);
  
    BAD_SW_IF_INDEX_LABEL;
  
    REPLY_MACRO (VL_API_L2TPV3_INTERFACE_ENABLE_DISABLE_REPLY);
  }
  
  static void vl_api_l2tpv3_set_lookup_key_t_handler
    (vl_api_l2tpv3_set_lookup_key_t * mp)
  {
    int rv = 0;
    l2t_main_t *lm = &l2t_main;
    vl_api_l2tpv3_set_lookup_key_reply_t *rmp;
  
    if (mp->key > L2T_LOOKUP_SESSION_ID)
      {
        rv = VNET_API_ERROR_INVALID_VALUE;
        goto out;
      }
  
    lm->lookup_type = mp->key;
  
  out:
    REPLY_MACRO (VL_API_L2TPV3_SET_LOOKUP_KEY_REPLY);
  }
  
  static void vl_api_vxlan_add_del_tunnel_t_handler
    (vl_api_vxlan_add_del_tunnel_t * mp)
  {
    vl_api_vxlan_add_del_tunnel_reply_t *rmp;
    int rv = 0;
    vnet_vxlan_add_del_tunnel_args_t _a, *a = &_a;
    u32 encap_fib_index;
    uword *p;
    ip4_main_t *im = &ip4_main;
    u32 sw_if_index = ~0;
  
    p = hash_get (im->fib_index_by_table_id, ntohl (mp->encap_vrf_id));
    if (!p)
      {
        rv = VNET_API_ERROR_NO_SUCH_FIB;
        goto out;
      }
    encap_fib_index = p[0];
  
    /* Check src & dst are different */
    if ((mp->is_ipv6 && memcmp (mp->src_address, mp->dst_address, 16) == 0) ||
        (!mp->is_ipv6 && memcmp (mp->src_address, mp->dst_address, 4) == 0))
      {
        rv = VNET_API_ERROR_SAME_SRC_DST;
        goto out;
      }
    memset (a, 0, sizeof (*a));
  
    a->is_add = mp->is_add;
    a->is_ip6 = mp->is_ipv6;
  
    /* ip addresses sent in network byte order */
    if (a->is_ip6)
      {
        memcpy (&(a->src.ip6), mp->src_address, 16);
        memcpy (&(a->dst.ip6), mp->dst_address, 16);
      }
    else
      {
        memcpy (&(a->src.ip4), mp->src_address, 4);
        memcpy (&(a->dst.ip4), mp->dst_address, 4);
      }
  
    a->encap_fib_index = encap_fib_index;
    a->decap_next_index = ntohl (mp->decap_next_index);
    a->vni = ntohl (mp->vni);
    rv = vnet_vxlan_add_del_tunnel (a, &sw_if_index);
  
  out:
    /* *INDENT-OFF* */
    REPLY_MACRO2(VL_API_VXLAN_ADD_DEL_TUNNEL_REPLY,
    ({
      rmp->sw_if_index = ntohl (sw_if_index);
    }));
    /* *INDENT-ON* */
  }
  
  static void send_vxlan_tunnel_details
    (vxlan_tunnel_t * t, unix_shared_memory_queue_t * q, u32 context)
  {
    vl_api_vxlan_tunnel_details_t *rmp;
    ip4_main_t *im4 = &ip4_main;
    ip6_main_t *im6 = &ip6_main;
    u8 is_ipv6 = !(t->flags & VXLAN_TUNNEL_IS_IPV4);
  
    rmp = vl_msg_api_alloc (sizeof (*rmp));
    memset (rmp, 0, sizeof (*rmp));
    rmp->_vl_msg_id = ntohs (VL_API_VXLAN_TUNNEL_DETAILS);
    if (is_ipv6)
      {
        memcpy (rmp->src_address, &(t->src.ip6), 16);
        memcpy (rmp->dst_address, &(t->dst.ip6), 16);
        rmp->encap_vrf_id = htonl (im6->fibs[t->encap_fib_index].table_id);
      }
    else
      {
        memcpy (rmp->src_address, &(t->src.ip4), 4);
        memcpy (rmp->dst_address, &(t->dst.ip4), 4);
        rmp->encap_vrf_id = htonl (im4->fibs[t->encap_fib_index].table_id);
      }
    rmp->vni = htonl (t->vni);
    rmp->decap_next_index = htonl (t->decap_next_index);
    rmp->sw_if_index = htonl (t->sw_if_index);
    rmp->is_ipv6 = is_ipv6;
    rmp->context = context;
  
    vl_msg_api_send_shmem (q, (u8 *) & rmp);
  }
  
  static void vl_api_vxlan_tunnel_dump_t_handler
    (vl_api_vxlan_tunnel_dump_t * mp)
  {
    unix_shared_memory_queue_t *q;
    vxlan_main_t *vxm = &vxlan_main;
    vxlan_tunnel_t *t;
    u32 sw_if_index;
  
    q = vl_api_client_index_to_input_queue (mp->client_index);
    if (q == 0)
      {
        return;
      }
  
    sw_if_index = ntohl (mp->sw_if_index);
  
    if (~0 == sw_if_index)
      {
        /* *INDENT-OFF* */
        pool_foreach (t, vxm->tunnels,
        ({
          send_vxlan_tunnel_details(t, q, mp->context);
        }));
        /* *INDENT-ON* */
      }
    else
      {
        if ((sw_if_index >= vec_len (vxm->tunnel_index_by_sw_if_index)) ||
  	  (~0 == vxm->tunnel_index_by_sw_if_index[sw_if_index]))
  	{
  	  return;
  	}
        t = &vxm->tunnels[vxm->tunnel_index_by_sw_if_index[sw_if_index]];
        send_vxlan_tunnel_details (t, q, mp->context);
      }
  }
  
  static void vl_api_gre_add_del_tunnel_t_handler
    (vl_api_gre_add_del_tunnel_t * mp)
  {
    vl_api_gre_add_del_tunnel_reply_t *rmp;
    int rv = 0;
    vnet_gre_add_del_tunnel_args_t _a, *a = &_a;
    u32 outer_fib_id;
    uword *p;
    ip4_main_t *im = &ip4_main;
    u32 sw_if_index = ~0;
  
    p = hash_get (im->fib_index_by_table_id, ntohl (mp->outer_fib_id));
    if (!p)
      {
        rv = VNET_API_ERROR_NO_SUCH_FIB;
        goto out;
      }
    outer_fib_id = p[0];
  
    /* Check src & dst are different */
    if ((mp->is_ipv6 && memcmp (mp->src_address, mp->dst_address, 16) == 0) ||
        (!mp->is_ipv6 && memcmp (mp->src_address, mp->dst_address, 4) == 0))
      {
        rv = VNET_API_ERROR_SAME_SRC_DST;
        goto out;
      }
    memset (a, 0, sizeof (*a));
  
    a->is_add = mp->is_add;
  
    /* ip addresses sent in network byte order */
    clib_memcpy (&(a->src), mp->src_address, 4);
    clib_memcpy (&(a->dst), mp->dst_address, 4);
  
    a->outer_fib_id = outer_fib_id;
    rv = vnet_gre_add_del_tunnel (a, &sw_if_index);
  
  out:
    /* *INDENT-OFF* */
    REPLY_MACRO2(VL_API_GRE_ADD_DEL_TUNNEL_REPLY,
    ({
      rmp->sw_if_index = ntohl (sw_if_index);
    }));
    /* *INDENT-ON* */
  }
  
  static void send_gre_tunnel_details
    (gre_tunnel_t * t, unix_shared_memory_queue_t * q, u32 context)
  {
    vl_api_gre_tunnel_details_t *rmp;
    ip4_main_t *im = &ip4_main;
  
    rmp = vl_msg_api_alloc (sizeof (*rmp));
    memset (rmp, 0, sizeof (*rmp));
    rmp->_vl_msg_id = ntohs (VL_API_GRE_TUNNEL_DETAILS);
    clib_memcpy (rmp->src_address, &(t->tunnel_src), 4);
    clib_memcpy (rmp->dst_address, &(t->tunnel_dst), 4);
    rmp->outer_fib_id = htonl (im->fibs[t->outer_fib_index].table_id);
    rmp->sw_if_index = htonl (t->sw_if_index);
    rmp->context = context;
  
    vl_msg_api_send_shmem (q, (u8 *) & rmp);
  }
  
  static void
  vl_api_gre_tunnel_dump_t_handler (vl_api_gre_tunnel_dump_t * mp)
  {
    unix_shared_memory_queue_t *q;
    gre_main_t *gm = &gre_main;
    gre_tunnel_t *t;
    u32 sw_if_index;
  
    q = vl_api_client_index_to_input_queue (mp->client_index);
    if (q == 0)
      {
        return;
      }
  
    sw_if_index = ntohl (mp->sw_if_index);
  
    if (~0 == sw_if_index)
      {
        /* *INDENT-OFF* */
        pool_foreach (t, gm->tunnels,
        ({
          send_gre_tunnel_details(t, q, mp->context);
        }));
        /* *INDENT-ON* */
      }
    else
      {
        if ((sw_if_index >= vec_len (gm->tunnel_index_by_sw_if_index)) ||
  	  (~0 == gm->tunnel_index_by_sw_if_index[sw_if_index]))
  	{
  	  return;
  	}
        t = &gm->tunnels[gm->tunnel_index_by_sw_if_index[sw_if_index]];
        send_gre_tunnel_details (t, q, mp->context);
      }
  }
  
  static void
  vl_api_l2_patch_add_del_t_handler (vl_api_l2_patch_add_del_t * mp)
  {
    extern int vnet_l2_patch_add_del (u32 rx_sw_if_index, u32 tx_sw_if_index,
  				    int is_add);
    vl_api_l2_patch_add_del_reply_t *rmp;
    int vnet_l2_patch_add_del (u32 rx_sw_if_index, u32 tx_sw_if_index,
  			     int is_add);
    int rv = 0;
  
    VALIDATE_RX_SW_IF_INDEX (mp);
    VALIDATE_TX_SW_IF_INDEX (mp);
  
    rv = vnet_l2_patch_add_del (ntohl (mp->rx_sw_if_index),
  			      ntohl (mp->tx_sw_if_index),
  			      (int) (mp->is_add != 0));
  
    BAD_RX_SW_IF_INDEX_LABEL;
    BAD_TX_SW_IF_INDEX_LABEL;
  
    REPLY_MACRO (VL_API_L2_PATCH_ADD_DEL_REPLY);
  }
  
  static void
    vl_api_vxlan_gpe_add_del_tunnel_t_handler
    (vl_api_vxlan_gpe_add_del_tunnel_t * mp)
  {
    vl_api_vxlan_gpe_add_del_tunnel_reply_t *rmp;
    int rv = 0;
    vnet_vxlan_gpe_add_del_tunnel_args_t _a, *a = &_a;
    u32 encap_fib_index, decap_fib_index;
    u8 protocol;
    uword *p;
    ip4_main_t *im = &ip4_main;
    u32 sw_if_index = ~0;
  
  
    p = hash_get (im->fib_index_by_table_id, ntohl (mp->encap_vrf_id));
    if (!p)
      {
        rv = VNET_API_ERROR_NO_SUCH_FIB;
        goto out;
      }
    encap_fib_index = p[0];
  
    protocol = mp->protocol;
  
    /* Interpret decap_vrf_id as an opaque if sending to other-than-ip4-input */
    if (protocol == VXLAN_GPE_INPUT_NEXT_IP4_INPUT)
      {
        p = hash_get (im->fib_index_by_table_id, ntohl (mp->decap_vrf_id));
        if (!p)
  	{
  	  rv = VNET_API_ERROR_NO_SUCH_INNER_FIB;
  	  goto out;
  	}
        decap_fib_index = p[0];
      }
    else
      {
        decap_fib_index = ntohl (mp->decap_vrf_id);
      }
  
    /* Check src & dst are different */
    if ((mp->is_ipv6 && memcmp (mp->local, mp->remote, 16) == 0) ||
        (!mp->is_ipv6 && memcmp (mp->local, mp->remote, 4) == 0))
      {
        rv = VNET_API_ERROR_SAME_SRC_DST;
        goto out;
      }
    memset (a, 0, sizeof (*a));
  
    a->is_add = mp->is_add;
    a->is_ip6 = mp->is_ipv6;
    /* ip addresses sent in network byte order */
    if (a->is_ip6)
      {
        clib_memcpy (&(a->local.ip6), mp->local, 16);
        clib_memcpy (&(a->remote.ip6), mp->remote, 16);
      }
    else
      {
        clib_memcpy (&(a->local.ip4), mp->local, 4);
        clib_memcpy (&(a->remote.ip4), mp->remote, 4);
      }
    a->encap_fib_index = encap_fib_index;
    a->decap_fib_index = decap_fib_index;
    a->protocol = protocol;
    a->vni = ntohl (mp->vni);
    rv = vnet_vxlan_gpe_add_del_tunnel (a, &sw_if_index);
  
  out:
    /* *INDENT-OFF* */
    REPLY_MACRO2(VL_API_VXLAN_GPE_ADD_DEL_TUNNEL_REPLY,
    ({
      rmp->sw_if_index = ntohl (sw_if_index);
    }));
    /* *INDENT-ON* */
  }
  
  static void send_vxlan_gpe_tunnel_details
    (vxlan_gpe_tunnel_t * t, unix_shared_memory_queue_t * q, u32 context)
  {
    vl_api_vxlan_gpe_tunnel_details_t *rmp;
    ip4_main_t *im4 = &ip4_main;
    ip6_main_t *im6 = &ip6_main;
    u8 is_ipv6 = !(t->flags & VXLAN_GPE_TUNNEL_IS_IPV4);
  
    rmp = vl_msg_api_alloc (sizeof (*rmp));
    memset (rmp, 0, sizeof (*rmp));
    rmp->_vl_msg_id = ntohs (VL_API_VXLAN_GPE_TUNNEL_DETAILS);
    if (is_ipv6)
      {
        memcpy (rmp->local, &(t->local.ip6), 16);
        memcpy (rmp->remote, &(t->remote.ip6), 16);
        rmp->encap_vrf_id = htonl (im6->fibs[t->encap_fib_index].table_id);
        rmp->decap_vrf_id = htonl (im6->fibs[t->decap_fib_index].table_id);
      }
    else
      {
        memcpy (rmp->local, &(t->local.ip4), 4);
        memcpy (rmp->remote, &(t->remote.ip4), 4);
        rmp->encap_vrf_id = htonl (im4->fibs[t->encap_fib_index].table_id);
        rmp->decap_vrf_id = htonl (im4->fibs[t->decap_fib_index].table_id);
      }
    rmp->vni = htonl (t->vni);
    rmp->protocol = t->protocol;
    rmp->sw_if_index = htonl (t->sw_if_index);
    rmp->is_ipv6 = is_ipv6;
    rmp->context = context;
  
    vl_msg_api_send_shmem (q, (u8 *) & rmp);
  }
  
  static void vl_api_vxlan_gpe_tunnel_dump_t_handler
    (vl_api_vxlan_gpe_tunnel_dump_t * mp)
  {
    unix_shared_memory_queue_t *q;
    vxlan_gpe_main_t *vgm = &vxlan_gpe_main;
    vxlan_gpe_tunnel_t *t;
    u32 sw_if_index;
  
    q = vl_api_client_index_to_input_queue (mp->client_index);
    if (q == 0)
      {
        return;
      }
  
    sw_if_index = ntohl (mp->sw_if_index);
  
    if (~0 == sw_if_index)
      {
        /* *INDENT-OFF* */
        pool_foreach (t, vgm->tunnels,
        ({
          send_vxlan_gpe_tunnel_details(t, q, mp->context);
        }));
        /* *INDENT-ON* */
      }
    else
      {
        if ((sw_if_index >= vec_len (vgm->tunnel_index_by_sw_if_index)) ||
  	  (~0 == vgm->tunnel_index_by_sw_if_index[sw_if_index]))
  	{
  	  return;
  	}
        t = &vgm->tunnels[vgm->tunnel_index_by_sw_if_index[sw_if_index]];
        send_vxlan_gpe_tunnel_details (t, q, mp->context);
      }
  }
  
  /** Used for transferring locators via VPP API */
  /* *INDENT-OFF* */
  typedef CLIB_PACKED (struct {
    u32 sw_if_index; /**< locator sw_if_index */
    u8 priority; /**< locator priority */
    u8 weight; /**< locator weight */
  }) ls_locator_t;
  /* *INDENT-ON* */
  
  static void
  vl_api_lisp_add_del_locator_set_t_handler (vl_api_lisp_add_del_locator_set_t *
  					   mp)
  {
    vl_api_lisp_add_del_locator_set_reply_t *rmp;
    int rv = 0;
    vnet_lisp_add_del_locator_set_args_t _a, *a = &_a;
    locator_t locator;
    ls_locator_t *ls_loc;
    u32 ls_index = ~0, locator_num;
    u8 *locator_name = NULL;
    int i;
  
    memset (a, 0, sizeof (a[0]));
  
    locator_name = format (0, "%s", mp->locator_set_name);
  
    a->name = locator_name;
    a->is_add = mp->is_add;
    a->local = 1;
    locator_num = clib_net_to_host_u32 (mp->locator_num);
  
    memset (&locator, 0, sizeof (locator));
    for (i = 0; i < locator_num; i++)
      {
        ls_loc = &((ls_locator_t *) mp->locators)[i];
        VALIDATE_SW_IF_INDEX (ls_loc);
  
        locator.sw_if_index = htonl (ls_loc->sw_if_index);
        locator.priority = ls_loc->priority;
        locator.weight = ls_loc->weight;
        locator.local = 1;
        vec_add1 (a->locators, locator);
      }
  
    rv = vnet_lisp_add_del_locator_set (a, &ls_index);
  
    BAD_SW_IF_INDEX_LABEL;
  
    vec_free (locator_name);
    vec_free (a->locators);
  
    /* *INDENT-OFF* */
    REPLY_MACRO2 (VL_API_LISP_ADD_DEL_LOCATOR_SET_REPLY,
    ({
      rmp->ls_index = clib_host_to_net_u32 (ls_index);
    }));
    /* *INDENT-ON* */
  }
  
  static void
  vl_api_lisp_add_del_locator_t_handler (vl_api_lisp_add_del_locator_t * mp)
  {
    vl_api_lisp_add_del_locator_reply_t *rmp;
    int rv = 0;
    locator_t locator, *locators = NULL;
    vnet_lisp_add_del_locator_set_args_t _a, *a = &_a;
    u32 ls_index = ~0;
    u8 *locator_name = NULL;
  
    memset (&locator, 0, sizeof (locator));
    memset (a, 0, sizeof (a[0]));
  
    locator.sw_if_index = ntohl (mp->sw_if_index);
    locator.priority = mp->priority;
    locator.weight = mp->weight;
    locator.local = 1;
    vec_add1 (locators, locator);
  
    locator_name = format (0, "%s", mp->locator_set_name);
  
    a->name = locator_name;
    a->locators = locators;
    a->is_add = mp->is_add;
    a->local = 1;
  
    rv = vnet_lisp_add_del_locator (a, NULL, &ls_index);
  
    vec_free (locators);
    vec_free (locator_name);
  
    REPLY_MACRO (VL_API_LISP_ADD_DEL_LOCATOR_REPLY);
  }
  
  static int
  unformat_lisp_eid_api (gid_address_t * dst, u32 vni, u8 type, void *src,
  		       u8 len)
  {
    switch (type)
      {
      case 0:			/* ipv4 */
        gid_address_type (dst) = GID_ADDR_IP_PREFIX;
        gid_address_ip_set (dst, src, IP4);
        gid_address_ippref_len (dst) = len;
        ip_prefix_normalize (&gid_address_ippref (dst));
        break;
      case 1:			/* ipv6 */
        gid_address_type (dst) = GID_ADDR_IP_PREFIX;
        gid_address_ip_set (dst, src, IP6);
        gid_address_ippref_len (dst) = len;
        ip_prefix_normalize (&gid_address_ippref (dst));
        break;
      case 2:			/* l2 mac */
        gid_address_type (dst) = GID_ADDR_MAC;
        clib_memcpy (&gid_address_mac (dst), src, 6);
        break;
      default:
        /* unknown type */
        return VNET_API_ERROR_INVALID_VALUE;
      }
  
    gid_address_vni (dst) = vni;
  
    return 0;
  }
  
  static void
  vl_api_lisp_add_del_local_eid_t_handler (vl_api_lisp_add_del_local_eid_t * mp)
  {
    vl_api_lisp_add_del_local_eid_reply_t *rmp;
    lisp_cp_main_t *lcm = vnet_lisp_cp_get_main ();
    int rv = 0;
    gid_address_t _eid, *eid = &_eid;
    uword *p = NULL;
    u32 locator_set_index = ~0, map_index = ~0;
    vnet_lisp_add_del_mapping_args_t _a, *a = &_a;
    u8 *name = NULL;
    memset (a, 0, sizeof (a[0]));
    memset (eid, 0, sizeof (eid[0]));
  
    rv = unformat_lisp_eid_api (eid, clib_net_to_host_u32 (mp->vni),
  			      mp->eid_type, mp->eid, mp->prefix_len);
    if (rv)
      goto out;
  
    name = format (0, "%s", mp->locator_set_name);
    p = hash_get_mem (lcm->locator_set_index_by_name, name);
    if (!p)
      {
        rv = VNET_API_ERROR_INVALID_VALUE;
        goto out;
      }
    locator_set_index = p[0];
  
    /* XXX treat batch configuration */
    a->is_add = mp->is_add;
    gid_address_copy (&a->eid, eid);
    a->locator_set_index = locator_set_index;
    a->local = 1;
    rv = vnet_lisp_add_del_local_mapping (a, &map_index);
  
  out:
    vec_free (name);
    gid_address_free (&a->eid);
  
    REPLY_MACRO (VL_API_LISP_ADD_DEL_LOCAL_EID_REPLY);
  }
  
  static void
    vl_api_lisp_eid_table_add_del_map_t_handler
    (vl_api_lisp_eid_table_add_del_map_t * mp)
  {
    vl_api_lisp_eid_table_add_del_map_reply_t *rmp;
    int rv = 0;
    rv = vnet_lisp_eid_table_map (clib_net_to_host_u32 (mp->vni),
  				clib_net_to_host_u32 (mp->dp_table),
  				mp->is_l2, mp->is_add);
  REPLY_MACRO (VL_API_LISP_EID_TABLE_ADD_DEL_MAP_REPLY)}
  
  /** Used for transferring locators via VPP API */
  /* *INDENT-OFF* */
  typedef CLIB_PACKED (struct {
    u8 is_ip4; /**< is locator an IPv4 address */
    u8 priority; /**< locator priority */
    u8 weight; /**< locator weight */
    u8 addr[16]; /**< IPv4/IPv6 address */
  }) rloc_t;
  /* *INDENT-ON* */
  
  static locator_pair_t *
  unformat_lisp_loc_pairs (void *lcl_locs, void *rmt_locs, u32 rloc_num)
  {
    u32 i;
    locator_pair_t *pairs = 0, pair;
    rloc_t *r;
  
    for (i = 0; i < rloc_num; i++)
      {
        /* local locator */
        r = &((rloc_t *) lcl_locs)[i];
        memset (&pair.lcl_loc, 0, sizeof (pair.lcl_loc));
        ip_address_set (&pair.lcl_loc, &r->addr, r->is_ip4 ? IP4 : IP6);
  
        /* remote locators */
        r = &((rloc_t *) rmt_locs)[i];
        memset (&pair.rmt_loc, 0, sizeof (pair.rmt_loc));
        ip_address_set (&pair.rmt_loc, &r->addr, r->is_ip4 ? IP4 : IP6);
  
        pair.priority = r->priority;
        pair.weight = r->weight;
  
        vec_add1 (pairs, pair);
      }
    return pairs;
  }
  
  static locator_t *
  unformat_lisp_locs (void *rmt_locs, u32 rloc_num)
  {
    u32 i;
    locator_t *locs = 0, loc;
    rloc_t *r;
  
    for (i = 0; i < rloc_num; i++)
      {
        /* remote locators */
        r = &((rloc_t *) rmt_locs)[i];
        memset (&loc, 0, sizeof (loc));
        gid_address_ip_set (&loc.address, &r->addr, r->is_ip4 ? IP4 : IP6);
  
        loc.priority = r->priority;
        loc.weight = r->weight;
  
        vec_add1 (locs, loc);
      }
    return locs;
  }
  
  static void
    vl_api_lisp_gpe_add_del_fwd_entry_t_handler
    (vl_api_lisp_gpe_add_del_fwd_entry_t * mp)
  {
    vl_api_lisp_gpe_add_del_fwd_entry_reply_t *rmp;
    vnet_lisp_gpe_add_del_fwd_entry_args_t _a, *a = &_a;
    locator_pair_t *pairs = 0;
    int rv = 0;
  
    memset (a, 0, sizeof (a[0]));
  
    rv = unformat_lisp_eid_api (&a->rmt_eid, mp->vni, mp->eid_type,
  			      mp->rmt_eid, mp->rmt_len);
    rv |= unformat_lisp_eid_api (&a->lcl_eid, mp->vni, mp->eid_type,
  			       mp->lcl_eid, mp->lcl_len);
  
    pairs = unformat_lisp_loc_pairs (mp->lcl_locs, mp->rmt_locs, mp->loc_num);
  
    if (rv || 0 == pairs)
      goto send_reply;
  
    a->is_add = mp->is_add;
    a->locator_pairs = pairs;
    a->dp_table = mp->dp_table;
    a->vni = mp->vni;
    a->action = mp->action;
  
    rv = vnet_lisp_gpe_add_del_fwd_entry (a, 0);
    vec_free (pairs);
  send_reply:
    REPLY_MACRO (VL_API_LISP_GPE_ADD_DEL_FWD_ENTRY_REPLY);
  }
  
  static void
  vl_api_lisp_add_del_map_resolver_t_handler (vl_api_lisp_add_del_map_resolver_t
  					    * mp)
  {
    vl_api_lisp_add_del_map_resolver_reply_t *rmp;
    int rv = 0;
    vnet_lisp_add_del_map_resolver_args_t _a, *a = &_a;
  
    memset (a, 0, sizeof (a[0]));
  
    a->is_add = mp->is_add;
    ip_address_set (&a->address, mp->ip_address, mp->is_ipv6 ? IP6 : IP4);
  
    rv = vnet_lisp_add_del_map_resolver (a);
  
    REPLY_MACRO (VL_API_LISP_ADD_DEL_MAP_RESOLVER_REPLY);
  }
  
  static void
  vl_api_lisp_gpe_enable_disable_t_handler (vl_api_lisp_gpe_enable_disable_t *
  					  mp)
  {
    vl_api_lisp_gpe_enable_disable_reply_t *rmp;
    int rv = 0;
    vnet_lisp_gpe_enable_disable_args_t _a, *a = &_a;
  
    a->is_en = mp->is_en;
    vnet_lisp_gpe_enable_disable (a);
  
    REPLY_MACRO (VL_API_LISP_GPE_ENABLE_DISABLE_REPLY);
  }
  
  static void
  vl_api_lisp_enable_disable_t_handler (vl_api_lisp_enable_disable_t * mp)
  {
    vl_api_lisp_enable_disable_reply_t *rmp;
    int rv = 0;
  
    vnet_lisp_enable_disable (mp->is_en);
    REPLY_MACRO (VL_API_LISP_ENABLE_DISABLE_REPLY);
  }
  
  static void
  vl_api_lisp_gpe_add_del_iface_t_handler (vl_api_lisp_gpe_add_del_iface_t * mp)
  {
    vl_api_lisp_gpe_add_del_iface_reply_t *rmp;
    int rv = 0;
    vnet_lisp_gpe_add_del_iface_args_t _a, *a = &_a;
  
    a->is_add = mp->is_add;
    a->dp_table = mp->dp_table;
    a->vni = mp->vni;
    a->is_l2 = mp->is_l2;
    rv = vnet_lisp_gpe_add_del_iface (a, 0);
  
    REPLY_MACRO (VL_API_LISP_GPE_ADD_DEL_IFACE_REPLY);
  }
  
  static void
  vl_api_lisp_pitr_set_locator_set_t_handler (vl_api_lisp_pitr_set_locator_set_t
  					    * mp)
  {
    vl_api_lisp_pitr_set_locator_set_reply_t *rmp;
    int rv = 0;
    u8 *ls_name = 0;
  
    ls_name = format (0, "%s", mp->ls_name);
    rv = vnet_lisp_pitr_set_locator_set (ls_name, mp->is_add);
    vec_free (ls_name);
  
    REPLY_MACRO (VL_API_LISP_PITR_SET_LOCATOR_SET_REPLY);
  }
  
  static void
    vl_api_lisp_add_del_map_request_itr_rlocs_t_handler
    (vl_api_lisp_add_del_map_request_itr_rlocs_t * mp)
  {
    vl_api_lisp_add_del_map_request_itr_rlocs_reply_t *rmp;
    int rv = 0;
    u8 *locator_set_name = NULL;
    vnet_lisp_add_del_mreq_itr_rloc_args_t _a, *a = &_a;
  
    locator_set_name = format (0, "%s", mp->locator_set_name);
  
    a->is_add = mp->is_add;
    a->locator_set_name = locator_set_name;
  
    rv = vnet_lisp_add_del_mreq_itr_rlocs (a);
  
    vec_free (locator_set_name);
  
    REPLY_MACRO (VL_API_LISP_ADD_DEL_MAP_REQUEST_ITR_RLOCS_REPLY);
  }
  
  static void
    vl_api_lisp_add_del_remote_mapping_t_handler
    (vl_api_lisp_add_del_remote_mapping_t * mp)
  {
    locator_t *rlocs = 0;
    vl_api_lisp_add_del_remote_mapping_reply_t *rmp;
    int rv = 0;
    gid_address_t _eid, *eid = &_eid;
    u32 rloc_num = clib_net_to_host_u32 (mp->rloc_num);
  
    memset (eid, 0, sizeof (eid[0]));
  
    rv = unformat_lisp_eid_api (eid, clib_net_to_host_u32 (mp->vni),
  			      mp->eid_type, mp->eid, mp->eid_len);
    if (rv)
      goto send_reply;
  
    rlocs = unformat_lisp_locs (mp->rlocs, rloc_num);
  
    if (!mp->is_add)
      {
        vnet_lisp_add_del_adjacency_args_t _a, *a = &_a;
        gid_address_copy (&a->deid, eid);
        a->is_add = 0;
        rv = vnet_lisp_add_del_adjacency (a);
        if (rv)
  	{
  	  goto out;
  	}
      }
  
    /* NOTE: for now this works as a static remote mapping, i.e.,
     * not authoritative and ttl infinite. */
    rv = vnet_lisp_add_del_mapping (eid, rlocs, mp->action, 0, ~0,
  				  mp->is_add, 1 /* is_static */ , 0);
  
    if (mp->del_all)
      vnet_lisp_clear_all_remote_adjacencies ();
  
  out:
    vec_free (rlocs);
  send_reply:
    REPLY_MACRO (VL_API_LISP_ADD_DEL_REMOTE_MAPPING_REPLY);
  }
  
  static void
  vl_api_lisp_add_del_adjacency_t_handler (vl_api_lisp_add_del_adjacency_t * mp)
  {
    vl_api_lisp_add_del_adjacency_reply_t *rmp;
    vnet_lisp_add_del_adjacency_args_t _a, *a = &_a;
  
    int rv = 0;
    memset (a, 0, sizeof (a[0]));
  
    rv = unformat_lisp_eid_api (&a->seid, clib_net_to_host_u32 (mp->vni),
  			      mp->eid_type, mp->seid, mp->seid_len);
    rv |= unformat_lisp_eid_api (&a->deid, clib_net_to_host_u32 (mp->vni),
  			       mp->eid_type, mp->deid, mp->deid_len);
  
    if (rv)
      goto send_reply;
  
    a->is_add = mp->is_add;
    rv = vnet_lisp_add_del_adjacency (a);
  
  send_reply:
    REPLY_MACRO (VL_API_LISP_ADD_DEL_ADJACENCY_REPLY);
  }
  
  static void
  send_lisp_locator_details (lisp_cp_main_t * lcm,
  			   locator_t * loc,
  			   unix_shared_memory_queue_t * q, u32 context)
  {
    vl_api_lisp_locator_details_t *rmp;
  
    rmp = vl_msg_api_alloc (sizeof (*rmp));
    memset (rmp, 0, sizeof (*rmp));
    rmp->_vl_msg_id = ntohs (VL_API_LISP_LOCATOR_DETAILS);
    rmp->context = context;
  
    rmp->local = loc->local;
    if (loc->local)
      {
        rmp->sw_if_index = ntohl (loc->sw_if_index);
      }
    else
      {
        rmp->is_ipv6 = gid_address_ip_version (&loc->address);
        ip_address_copy_addr (rmp->ip_address, &gid_address_ip (&loc->address));
      }
    rmp->priority = loc->priority;
    rmp->weight = loc->weight;
  
    vl_msg_api_send_shmem (q, (u8 *) & rmp);
  }
  
  static void
  vl_api_lisp_locator_dump_t_handler (vl_api_lisp_locator_dump_t * mp)
  {
    unix_shared_memory_queue_t *q = 0;
    lisp_cp_main_t *lcm = vnet_lisp_cp_get_main ();
    locator_set_t *lsit = 0;
    locator_t *loc = 0;
    u32 ls_index = ~0, *locit = 0;
    u8 filter;
  
    q = vl_api_client_index_to_input_queue (mp->client_index);
    if (q == 0)
      {
        return;
      }
  
    ls_index = htonl (mp->locator_set_index);
  
    lsit = pool_elt_at_index (lcm->locator_set_pool, ls_index);
  
    filter = mp->filter;
    if (filter && !((1 == filter && lsit->local) ||
  		  (2 == filter && !lsit->local)))
      {
        return;
      }
  
    vec_foreach (locit, lsit->locator_indices)
    {
      loc = pool_elt_at_index (lcm->locator_pool, locit[0]);
      send_lisp_locator_details (lcm, loc, q, mp->context);
    };
  }
  
  static void
  send_lisp_locator_set_details (lisp_cp_main_t * lcm,
  			       locator_set_t * lsit,
  			       unix_shared_memory_queue_t * q,
  			       u32 context, u32 ls_index)
  {
    vl_api_lisp_locator_set_details_t *rmp;
    u8 *str = 0;
  
    rmp = vl_msg_api_alloc (sizeof (*rmp));
    memset (rmp, 0, sizeof (*rmp));
    rmp->_vl_msg_id = ntohs (VL_API_LISP_LOCATOR_SET_DETAILS);
    rmp->context = context;
  
    rmp->local = lsit->local;
    rmp->locator_set_index = htonl (ls_index);
    if (lsit->local)
      {
        ASSERT (lsit->name != NULL);
        strncpy ((char *) rmp->locator_set_name,
  	       (char *) lsit->name, ARRAY_LEN (rmp->locator_set_name) - 1);
      }
    else
      {
        str = format (0, "remote-%d", ls_index);
        strncpy ((char *) rmp->locator_set_name, (char *) str,
  	       ARRAY_LEN (rmp->locator_set_name) - 1);
        vec_free (str);
      }
  
    vl_msg_api_send_shmem (q, (u8 *) & rmp);
  }
  
  static void
  vl_api_lisp_locator_set_dump_t_handler (vl_api_lisp_locator_set_dump_t * mp)
  {
    unix_shared_memory_queue_t *q = NULL;
    lisp_cp_main_t *lcm = vnet_lisp_cp_get_main ();
    locator_set_t *lsit = NULL;
    u32 index;
    u8 filter;
  
    q = vl_api_client_index_to_input_queue (mp->client_index);
    if (q == 0)
      {
        return;
      }
  
    filter = mp->filter;
    index = 0;
    /* *INDENT-OFF* */
    pool_foreach (lsit, lcm->locator_set_pool,
    ({
      if (filter && !((1 == filter && lsit->local) ||
                      (2 == filter && !lsit->local))) {
        index++;
        continue;
      }
      send_lisp_locator_set_details(lcm, lsit, q, mp->context, index++);
    }));
    /* *INDENT-ON* */
  }
  
  static void
  send_lisp_eid_table_details (mapping_t * mapit,
  			     unix_shared_memory_queue_t * q,
  			     u32 context, u8 filter)
  {
    lisp_cp_main_t *lcm = vnet_lisp_cp_get_main ();
    locator_set_t *ls = 0;
    vl_api_lisp_eid_table_details_t *rmp = NULL;
    gid_address_t *gid = NULL;
    u8 *mac = 0;
    ip_prefix_t *ip_prefix = NULL;
  
    switch (filter)
      {
      case 0:			/* all mappings */
        break;
  
      case 1:			/* local only */
        if (!mapit->local)
  	return;
        break;
      case 2:			/* remote only */
        if (mapit->local)
  	return;
        break;
      default:
        clib_warning ("Filter error, unknown filter: %d", filter);
        return;
      }
  
    gid = &mapit->eid;
    ip_prefix = &gid_address_ippref (gid);
    mac = gid_address_mac (gid);
  
    rmp = vl_msg_api_alloc (sizeof (*rmp));
    memset (rmp, 0, sizeof (*rmp));
    rmp->_vl_msg_id = ntohs (VL_API_LISP_EID_TABLE_DETAILS);
  
    ls = pool_elt_at_index (lcm->locator_set_pool, mapit->locator_set_index);
    if (vec_len (ls->locator_indices) == 0)
      rmp->locator_set_index = ~0;
    else
      rmp->locator_set_index = clib_host_to_net_u32 (mapit->locator_set_index);
  
    rmp->is_local = mapit->local;
    rmp->ttl = clib_host_to_net_u32 (mapit->ttl);
    rmp->action = mapit->action;
    rmp->authoritative = mapit->authoritative;
  
    switch (gid_address_type (gid))
      {
      case GID_ADDR_IP_PREFIX:
        rmp->eid_prefix_len = ip_prefix_len (ip_prefix);
        if (ip_prefix_version (ip_prefix) == IP4)
  	{
  	  rmp->eid_type = 0;	/* ipv4 type */
  	  clib_memcpy (rmp->eid, &ip_prefix_v4 (ip_prefix),
  		       sizeof (ip_prefix_v4 (ip_prefix)));
  	}
        else
  	{
  	  rmp->eid_type = 1;	/* ipv6 type */
  	  clib_memcpy (rmp->eid, &ip_prefix_v6 (ip_prefix),
  		       sizeof (ip_prefix_v6 (ip_prefix)));
  	}
        break;
      case GID_ADDR_MAC:
        rmp->eid_type = 2;	/* l2 mac type */
        clib_memcpy (rmp->eid, mac, 6);
        break;
      default:
        ASSERT (0);
      }
    rmp->context = context;
    rmp->vni = clib_host_to_net_u32 (gid_address_vni (gid));
    vl_msg_api_send_shmem (q, (u8 *) & rmp);
  }
  
  static void
  vl_api_lisp_eid_table_dump_t_handler (vl_api_lisp_eid_table_dump_t * mp)
  {
    u32 mi;
    unix_shared_memory_queue_t *q = NULL;
    lisp_cp_main_t *lcm = vnet_lisp_cp_get_main ();
    mapping_t *mapit = NULL;
    gid_address_t _eid, *eid = &_eid;
  
    q = vl_api_client_index_to_input_queue (mp->client_index);
    if (q == 0)
      {
        return;
      }
  
    if (mp->eid_set)
      {
        memset (eid, 0, sizeof (*eid));
  
        unformat_lisp_eid_api (eid, clib_net_to_host_u32 (mp->vni),
  			     mp->eid_type, mp->eid, mp->prefix_length);
  
        mi = gid_dictionary_lookup (&lcm->mapping_index_by_gid, eid);
        if ((u32) ~ 0 == mi)
  	return;
  
        mapit = pool_elt_at_index (lcm->mapping_pool, mi);
        send_lisp_eid_table_details (mapit, q, mp->context,
  				   0 /* ignore filter */ );
      }
    else
      {
        /* *INDENT-OFF* */
        pool_foreach (mapit, lcm->mapping_pool,
        ({
          send_lisp_eid_table_details(mapit, q, mp->context,
                                      mp->filter);
        }));
        /* *INDENT-ON* */
      }
  }
  
  static void
  send_lisp_gpe_tunnel_details (lisp_gpe_tunnel_t * tunnel,
  			      unix_shared_memory_queue_t * q, u32 context)
  {
    vl_api_lisp_gpe_tunnel_details_t *rmp;
    lisp_gpe_main_t *lgm = &lisp_gpe_main;
  
    rmp = vl_msg_api_alloc (sizeof (*rmp));
    memset (rmp, 0, sizeof (*rmp));
    rmp->_vl_msg_id = ntohs (VL_API_LISP_GPE_TUNNEL_DETAILS);
  
    rmp->tunnels = tunnel - lgm->tunnels;
  
    rmp->is_ipv6 = ip_addr_version (&tunnel->src) == IP6 ? 1 : 0;
    ip_address_copy_addr (rmp->source_ip, &tunnel->src);
    ip_address_copy_addr (rmp->destination_ip, &tunnel->dst);
  
    rmp->encap_fib_id = htonl (tunnel->encap_fib_index);
    rmp->decap_fib_id = htonl (tunnel->decap_fib_index);
    rmp->dcap_next = htonl (tunnel->decap_next_index);
    rmp->lisp_ver = tunnel->ver_res;
    rmp->next_protocol = tunnel->next_protocol;
    rmp->flags = tunnel->flags;
    rmp->ver_res = tunnel->ver_res;
    rmp->res = tunnel->res;
    rmp->iid = htonl (tunnel->vni);
    rmp->context = context;
  
    vl_msg_api_send_shmem (q, (u8 *) & rmp);
  }
  
  static void
  vl_api_lisp_gpe_tunnel_dump_t_handler (vl_api_lisp_gpe_tunnel_dump_t * mp)
  {
    unix_shared_memory_queue_t *q = NULL;
    lisp_gpe_main_t *lgm = &lisp_gpe_main;
    lisp_gpe_tunnel_t *tunnel = NULL;
  
    if (pool_elts (lgm->tunnels) == 0)
      {
        return;
      }
  
    q = vl_api_client_index_to_input_queue (mp->client_index);
    if (q == 0)
      {
        return;
      }
  
    /* *INDENT-OFF* */
    pool_foreach(tunnel, lgm->tunnels,
    ({
      send_lisp_gpe_tunnel_details(tunnel, q, mp->context);
    }));
    /* *INDENT-ON* */
  }
  
  static void
  send_lisp_map_resolver_details (ip_address_t * ip,
  				unix_shared_memory_queue_t * q, u32 context)
  {
    vl_api_lisp_map_resolver_details_t *rmp = NULL;
  
    rmp = vl_msg_api_alloc (sizeof (*rmp));
    memset (rmp, 0, sizeof (*rmp));
    rmp->_vl_msg_id = ntohs (VL_API_LISP_MAP_RESOLVER_DETAILS);
  
    switch (ip_addr_version (ip))
      {
      case IP4:
        rmp->is_ipv6 = 0;
        clib_memcpy (rmp->ip_address, &ip_addr_v4 (ip),
  		   sizeof (ip_addr_v4 (ip)));
        break;
  
      case IP6:
        rmp->is_ipv6 = 1;
        clib_memcpy (rmp->ip_address, &ip_addr_v6 (ip),
  		   sizeof (ip_addr_v6 (ip)));
        break;
  
      default:
        ASSERT (0);
      }
    rmp->context = context;
  
    vl_msg_api_send_shmem (q, (u8 *) & rmp);
  }
  
  static void
  vl_api_lisp_map_resolver_dump_t_handler (vl_api_lisp_map_resolver_dump_t * mp)
  {
    unix_shared_memory_queue_t *q = NULL;
    lisp_cp_main_t *lcm = vnet_lisp_cp_get_main ();
    map_resolver_t *mr;
  
    q = vl_api_client_index_to_input_queue (mp->client_index);
    if (q == 0)
      {
        return;
      }
  
    vec_foreach (mr, lcm->map_resolvers)
    {
      send_lisp_map_resolver_details (&mr->address, q, mp->context);
    }
  }
  
  static void
  send_eid_table_map_pair (hash_pair_t * p,
  			 unix_shared_memory_queue_t * q, u32 context)
  {
    vl_api_lisp_eid_table_map_details_t *rmp = NULL;
  
    rmp = vl_msg_api_alloc (sizeof (*rmp));
    memset (rmp, 0, sizeof (*rmp));
    rmp->_vl_msg_id = ntohs (VL_API_LISP_EID_TABLE_MAP_DETAILS);
  
    rmp->vni = clib_host_to_net_u32 (p->key);
    rmp->dp_table = clib_host_to_net_u32 (p->value[0]);
    rmp->context = context;
    vl_msg_api_send_shmem (q, (u8 *) & rmp);
  }
  
  static void
  vl_api_lisp_eid_table_map_dump_t_handler (vl_api_lisp_eid_table_map_dump_t *
  					  mp)
  {
    unix_shared_memory_queue_t *q = NULL;
    lisp_cp_main_t *lcm = vnet_lisp_cp_get_main ();
    hash_pair_t *p;
    uword *vni_table = 0;
  
    q = vl_api_client_index_to_input_queue (mp->client_index);
    if (q == 0)
      {
        return;
      }
  
    if (mp->is_l2)
      {
        vni_table = lcm->bd_id_by_vni;
      }
    else
      {
        vni_table = lcm->table_id_by_vni;
      }
  
    /* *INDENT-OFF* */
    hash_foreach_pair (p, vni_table,
    ({
      send_eid_table_map_pair (p, q, mp->context);
    }));
    /* *INDENT-ON* */
  }
  
  static void
  send_eid_table_vni (u32 vni, unix_shared_memory_queue_t * q, u32 context)
  {
    vl_api_lisp_eid_table_vni_details_t *rmp = 0;
  
    rmp = vl_msg_api_alloc (sizeof (*rmp));
    memset (rmp, 0, sizeof (*rmp));
    rmp->_vl_msg_id = ntohs (VL_API_LISP_EID_TABLE_VNI_DETAILS);
    rmp->context = context;
    rmp->vni = clib_host_to_net_u32 (vni);
    vl_msg_api_send_shmem (q, (u8 *) & rmp);
  }
  
  static void
  vl_api_lisp_eid_table_vni_dump_t_handler (vl_api_lisp_eid_table_vni_dump_t *
  					  mp)
  {
    hash_pair_t *p;
    u32 *vnis = 0;
    unix_shared_memory_queue_t *q = 0;
    lisp_cp_main_t *lcm = vnet_lisp_cp_get_main ();
  
    q = vl_api_client_index_to_input_queue (mp->client_index);
    if (q == 0)
      {
        return;
      }
  
    /* *INDENT-OFF* */
    hash_foreach_pair (p, lcm->table_id_by_vni,
    ({
      hash_set (vnis, p->key, 0);
    }));
  
    hash_foreach_pair (p, lcm->bd_id_by_vni,
    ({
      hash_set (vnis, p->key, 0);
    }));
  
    hash_foreach_pair (p, vnis,
    ({
      send_eid_table_vni (p->key, q, mp->context);
    }));
    /* *INDENT-ON* */
  
    hash_free (vnis);
  }
  
  static void
  vl_api_show_lisp_status_t_handler (vl_api_show_lisp_status_t * mp)
  {
    unix_shared_memory_queue_t *q = NULL;
    vl_api_show_lisp_status_reply_t *rmp = NULL;
    int rv = 0;
  
    q = vl_api_client_index_to_input_queue (mp->client_index);
    if (q == 0)
      {
        return;
      }
  
    /* *INDENT-OFF* */
    REPLY_MACRO2(VL_API_SHOW_LISP_STATUS_REPLY,
    ({
      rmp->gpe_status = vnet_lisp_gpe_enable_disable_status ();
      rmp->feature_status = vnet_lisp_enable_disable_status ();
    }));
    /* *INDENT-ON* */
  }
  
  static void
    vl_api_lisp_get_map_request_itr_rlocs_t_handler
    (vl_api_lisp_get_map_request_itr_rlocs_t * mp)
  {
    unix_shared_memory_queue_t *q = NULL;
    vl_api_lisp_get_map_request_itr_rlocs_reply_t *rmp = NULL;
    lisp_cp_main_t *lcm = vnet_lisp_cp_get_main ();
    locator_set_t *loc_set = 0;
    u8 *tmp_str = 0;
    int rv = 0;
  
    q = vl_api_client_index_to_input_queue (mp->client_index);
    if (q == 0)
      {
        return;
      }
  
    if (~0 == lcm->mreq_itr_rlocs)
      {
        tmp_str = format (0, " ");
      }
    else
      {
        loc_set =
  	pool_elt_at_index (lcm->locator_set_pool, lcm->mreq_itr_rlocs);
        tmp_str = format (0, "%s", loc_set->name);
      }
  
    /* *INDENT-OFF* */
    REPLY_MACRO2(VL_API_LISP_GET_MAP_REQUEST_ITR_RLOCS_REPLY,
    ({
      strncpy((char *) rmp->locator_set_name, (char *) tmp_str,
              ARRAY_LEN(rmp->locator_set_name) - 1);
    }));
    /* *INDENT-ON* */
  
    vec_free (tmp_str);
  }
  
  static void
  vl_api_show_lisp_pitr_t_handler (vl_api_show_lisp_pitr_t * mp)
  {
    unix_shared_memory_queue_t *q = NULL;
    vl_api_show_lisp_pitr_reply_t *rmp = NULL;
    lisp_cp_main_t *lcm = vnet_lisp_cp_get_main ();
    mapping_t *m;
    locator_set_t *ls = 0;
    u8 *tmp_str = 0;
    int rv = 0;
  
    q = vl_api_client_index_to_input_queue (mp->client_index);
    if (q == 0)
      {
        return;
      }
  
    if (!lcm->lisp_pitr)
      {
        tmp_str = format (0, "N/A");
      }
    else
      {
        m = pool_elt_at_index (lcm->mapping_pool, lcm->pitr_map_index);
        if (~0 != m->locator_set_index)
  	{
  	  ls =
  	    pool_elt_at_index (lcm->locator_set_pool, m->locator_set_index);
  	  tmp_str = format (0, "%s", ls->name);
  	}
        else
  	{
  	  tmp_str = format (0, "N/A");
  	}
      }
    vec_add1 (tmp_str, 0);
  
    /* *INDENT-OFF* */
    REPLY_MACRO2(VL_API_SHOW_LISP_PITR_REPLY,
    ({
      rmp->status = lcm->lisp_pitr;
      strncpy((char *) rmp->locator_set_name, (char *) tmp_str,
              ARRAY_LEN(rmp->locator_set_name) - 1);
    }));
    /* *INDENT-ON* */
  }
  
  static void
  vl_api_interface_name_renumber_t_handler (vl_api_interface_name_renumber_t *
  					  mp)
  {
    vl_api_interface_name_renumber_reply_t *rmp;
    int rv = 0;
  
    VALIDATE_SW_IF_INDEX (mp);
  
    rv = vnet_interface_name_renumber
      (ntohl (mp->sw_if_index), ntohl (mp->new_show_dev_instance));
  
    BAD_SW_IF_INDEX_LABEL;
  
    REPLY_MACRO (VL_API_INTERFACE_NAME_RENUMBER_REPLY);
  }
  
  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;
    vlib_main_t *vm = am->vlib_main;
    vl_api_ip4_arp_event_t *event;
    static f64 arp_event_last_time;
    f64 now = vlib_time_now (vm);
  
    if (pool_is_free_index (am->arp_events, pool_index))
      return 1;
  
    event = pool_elt_at_index (am->arp_events, pool_index);
    /* *INDENT-OFF* */
    if (memcmp (&event->new_mac, new_mac, sizeof (event->new_mac)))
      {
        clib_memcpy (event->new_mac, new_mac, sizeof (event->new_mac));
      }
    else
      {				/* same mac */
        if (sw_if_index == event->sw_if_index &&
  	  (!event->mac_ip ||
  	   /* for BD case, also check IP address with 10 sec timeout */
  	   (address == event->address &&
  	    (now - arp_event_last_time) < 10.0)))
  	return 1;
      }
    /* *INDENT-ON* */
  
    arp_event_last_time = now;
    event->sw_if_index = sw_if_index;
    if (event->mac_ip)
      event->address = address;
    return 0;
  }
  
  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;
    vlib_main_t *vm = am->vlib_main;
    vl_api_ip6_nd_event_t *event;
    static f64 nd_event_last_time;
    f64 now = vlib_time_now (vm);
  
    if (pool_is_free_index (am->nd_events, pool_index))
      return 1;
  
    event = pool_elt_at_index (am->nd_events, pool_index);
  
    /* *INDENT-OFF* */
    if (memcmp (&event->new_mac, new_mac, sizeof (event->new_mac)))
      {
        clib_memcpy (event->new_mac, new_mac, sizeof (event->new_mac));
      }
    else
      {				/* same mac */
        if (sw_if_index == event->sw_if_index &&
  	  (!event->mac_ip ||
  	   /* for BD case, also check IP address with 10 sec timeout */
  	   (ip6_address_is_equal (address,
  				  (ip6_address_t *) event->address) &&
  	    (now - nd_event_last_time) < 10.0)))
  	return 1;
      }
    /* *INDENT-ON* */
  
    nd_event_last_time = now;
    event->sw_if_index = sw_if_index;
    if (event->mac_ip)
      clib_memcpy (event->address, address, sizeof (event->address));
    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 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;
    vl_api_ip4_arp_event_t *event;
    int rv;
  
    if (mp->enable_disable)
      {
        pool_get (am->arp_events, event);
        memset (event, 0, sizeof (*event));
  
        event->_vl_msg_id = ntohs (VL_API_IP4_ARP_EVENT);
        event->client_index = mp->client_index;
        event->context = mp->context;
        event->address = mp->address;
        event->pid = mp->pid;
        if (mp->address == 0)
  	event->mac_ip = 1;
  
        rv = vnet_add_del_ip4_arp_change_event
  	(vnm, arp_change_data_callback,
  	 mp->pid, &mp->address /* addr, in net byte order */ ,
  	 vpe_resolver_process_node.index,
  	 IP4_ARP_EVENT, event - am->arp_events, 1 /* is_add */ );
      }
    else
      {
        rv = vnet_add_del_ip4_arp_change_event
  	(vnm, arp_change_delete_callback,
  	 mp->pid, &mp->address /* addr, in net byte order */ ,
  	 vpe_resolver_process_node.index,
  	 IP4_ARP_EVENT, ~0 /* pool index */ , 0 /* is_add */ );
      }
    REPLY_MACRO (VL_API_WANT_IP4_ARP_EVENTS_REPLY);
  }
  
  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;
    vl_api_ip6_nd_event_t *event;
    int rv;
  
    if (mp->enable_disable)
      {
        pool_get (am->nd_events, event);
        memset (event, 0, sizeof (*event));
  
        event->_vl_msg_id = ntohs (VL_API_IP6_ND_EVENT);
        event->client_index = mp->client_index;
        event->context = mp->context;
        clib_memcpy (event->address, mp->address, 16);
        event->pid = mp->pid;
        if (ip6_address_is_zero ((ip6_address_t *) mp->address))
  	event->mac_ip = 1;
  
        rv = vnet_add_del_ip6_nd_change_event
  	(vnm, nd_change_data_callback,
  	 mp->pid, mp->address /* addr, in net byte order */ ,
  	 vpe_resolver_process_node.index,
  	 IP6_ND_EVENT, event - am->nd_events, 1 /* is_add */ );
      }
    else
      {
        rv = vnet_add_del_ip6_nd_change_event
  	(vnm, nd_change_delete_callback,
  	 mp->pid, mp->address /* addr, in net byte order */ ,
  	 vpe_resolver_process_node.index,
  	 IP6_ND_EVENT, ~0 /* pool index */ , 0 /* is_add */ );
      }
    REPLY_MACRO (VL_API_WANT_IP6_ND_EVENTS_REPLY);
  }
  
  static void vl_api_input_acl_set_interface_t_handler
    (vl_api_input_acl_set_interface_t * mp)
  {
    vlib_main_t *vm = vlib_get_main ();
    vl_api_input_acl_set_interface_reply_t *rmp;
    int rv;
    u32 sw_if_index, ip4_table_index, ip6_table_index, l2_table_index;
  
    ip4_table_index = ntohl (mp->ip4_table_index);
    ip6_table_index = ntohl (mp->ip6_table_index);
    l2_table_index = ntohl (mp->l2_table_index);
    sw_if_index = ntohl (mp->sw_if_index);
  
    VALIDATE_SW_IF_INDEX (mp);
  
    rv = vnet_set_input_acl_intfc (vm, sw_if_index, ip4_table_index,
  				 ip6_table_index, l2_table_index, mp->is_add);
  
    BAD_SW_IF_INDEX_LABEL;
  
    REPLY_MACRO (VL_API_INPUT_ACL_SET_INTERFACE_REPLY);
  }
  
  static void vl_api_ipsec_spd_add_del_t_handler
    (vl_api_ipsec_spd_add_del_t * mp)
  {
  #if IPSEC == 0
    clib_warning ("unimplemented");
  #else
  
    vlib_main_t *vm __attribute__ ((unused)) = vlib_get_main ();
    vl_api_ipsec_spd_add_del_reply_t *rmp;
    int rv;
  
  #if DPDK > 0
    rv = ipsec_add_del_spd (vm, ntohl (mp->spd_id), mp->is_add);
  #else
    rv = VNET_API_ERROR_UNIMPLEMENTED;
  #endif
  
    REPLY_MACRO (VL_API_IPSEC_SPD_ADD_DEL_REPLY);
  #endif
  }
  
  static void vl_api_ipsec_interface_add_del_spd_t_handler
    (vl_api_ipsec_interface_add_del_spd_t * mp)
  {
    vlib_main_t *vm __attribute__ ((unused)) = vlib_get_main ();
    vl_api_ipsec_interface_add_del_spd_reply_t *rmp;
    int rv;
    u32 sw_if_index __attribute__ ((unused));
    u32 spd_id __attribute__ ((unused));
  
    sw_if_index = ntohl (mp->sw_if_index);
    spd_id = ntohl (mp->spd_id);
  
    VALIDATE_SW_IF_INDEX (mp);
  
  #if IPSEC > 0
    rv = ipsec_set_interface_spd (vm, sw_if_index, spd_id, mp->is_add);
  #else
    rv = VNET_API_ERROR_UNIMPLEMENTED;
  #endif
  
    BAD_SW_IF_INDEX_LABEL;
  
    REPLY_MACRO (VL_API_IPSEC_INTERFACE_ADD_DEL_SPD_REPLY);
  }
  
  static void vl_api_ipsec_spd_add_del_entry_t_handler
    (vl_api_ipsec_spd_add_del_entry_t * mp)
  {
    vlib_main_t *vm __attribute__ ((unused)) = vlib_get_main ();
    vl_api_ipsec_spd_add_del_entry_reply_t *rmp;
    int rv;
  
  #if IPSEC > 0
    ipsec_policy_t p;
  
    memset (&p, 0, sizeof (p));
  
    p.id = ntohl (mp->spd_id);
    p.priority = ntohl (mp->priority);
    p.is_outbound = mp->is_outbound;
    p.is_ipv6 = mp->is_ipv6;
  
    if (mp->is_ipv6 || mp->is_ip_any)
      {
        clib_memcpy (&p.raddr.start, mp->remote_address_start, 16);
        clib_memcpy (&p.raddr.stop, mp->remote_address_stop, 16);
        clib_memcpy (&p.laddr.start, mp->local_address_start, 16);
        clib_memcpy (&p.laddr.stop, mp->local_address_stop, 16);
      }
    else
      {
        clib_memcpy (&p.raddr.start.ip4.data, mp->remote_address_start, 4);
        clib_memcpy (&p.raddr.stop.ip4.data, mp->remote_address_stop, 4);
        clib_memcpy (&p.laddr.start.ip4.data, mp->local_address_start, 4);
        clib_memcpy (&p.laddr.stop.ip4.data, mp->local_address_stop, 4);
      }
    p.protocol = mp->protocol;
    p.rport.start = ntohs (mp->remote_port_start);
    p.rport.stop = ntohs (mp->remote_port_stop);
    p.lport.start = ntohs (mp->local_port_start);
    p.lport.stop = ntohs (mp->local_port_stop);
    /* policy action resolve unsupported */
    if (mp->policy == IPSEC_POLICY_ACTION_RESOLVE)
      {
        clib_warning ("unsupported action: 'resolve'");
        rv = VNET_API_ERROR_UNIMPLEMENTED;
        goto out;
      }
    p.policy = mp->policy;
    p.sa_id = ntohl (mp->sa_id);
  
    rv = ipsec_add_del_policy (vm, &p, mp->is_add);
    if (rv)
      goto out;
  
    if (mp->is_ip_any)
      {
        p.is_ipv6 = 1;
        rv = ipsec_add_del_policy (vm, &p, mp->is_add);
      }
  #else
    rv = VNET_API_ERROR_UNIMPLEMENTED;
    goto out;
  #endif
  
  out:
    REPLY_MACRO (VL_API_IPSEC_SPD_ADD_DEL_ENTRY_REPLY);
  }
  
  static void vl_api_ipsec_sad_add_del_entry_t_handler
    (vl_api_ipsec_sad_add_del_entry_t * mp)
  {
    vlib_main_t *vm __attribute__ ((unused)) = vlib_get_main ();
    vl_api_ipsec_sad_add_del_entry_reply_t *rmp;
    int rv;
  #if IPSEC > 0
    ipsec_sa_t sa;
  
    memset (&sa, 0, sizeof (sa));
  
    sa.id = ntohl (mp->sad_id);
    sa.spi = ntohl (mp->spi);
    /* security protocol AH unsupported */
    if (mp->protocol == IPSEC_PROTOCOL_AH)
      {
        clib_warning ("unsupported security protocol 'AH'");
        rv = VNET_API_ERROR_UNIMPLEMENTED;
        goto out;
      }
    sa.protocol = mp->protocol;
    /* check for unsupported crypto-alg */
    if (mp->crypto_algorithm < IPSEC_CRYPTO_ALG_AES_CBC_128 ||
        mp->crypto_algorithm > IPSEC_CRYPTO_ALG_AES_CBC_256)
      {
        clib_warning ("unsupported crypto-alg: '%U'", format_ipsec_crypto_alg,
  		    mp->crypto_algorithm);
        rv = VNET_API_ERROR_UNIMPLEMENTED;
        goto out;
      }
    sa.crypto_alg = mp->crypto_algorithm;
    sa.crypto_key_len = mp->crypto_key_length;
    clib_memcpy (&sa.crypto_key, mp->crypto_key, sizeof (sa.crypto_key));
    /* check for unsupported integ-alg */
    if (mp->integrity_algorithm < IPSEC_INTEG_ALG_SHA1_96 ||
        mp->integrity_algorithm > IPSEC_INTEG_ALG_SHA_512_256)
      {
        clib_warning ("unsupported integ-alg: '%U'", format_ipsec_integ_alg,
  		    mp->integrity_algorithm);
        rv = VNET_API_ERROR_UNIMPLEMENTED;
        goto out;
      }
    sa.integ_alg = mp->integrity_algorithm;
    sa.integ_key_len = mp->integrity_key_length;
    clib_memcpy (&sa.integ_key, mp->integrity_key, sizeof (sa.integ_key));
    sa.use_esn = mp->use_extended_sequence_number;
    sa.is_tunnel = mp->is_tunnel;
    sa.is_tunnel_ip6 = mp->is_tunnel_ipv6;
    if (sa.is_tunnel_ip6)
      {
        clib_memcpy (&sa.tunnel_src_addr, mp->tunnel_src_address, 16);
        clib_memcpy (&sa.tunnel_dst_addr, mp->tunnel_dst_address, 16);
      }
    else
      {
        clib_memcpy (&sa.tunnel_src_addr.ip4.data, mp->tunnel_src_address, 4);
        clib_memcpy (&sa.tunnel_dst_addr.ip4.data, mp->tunnel_dst_address, 4);
      }
  
    rv = ipsec_add_del_sa (vm, &sa, mp->is_add);
  #else
    rv = VNET_API_ERROR_UNIMPLEMENTED;
    goto out;
  #endif
  
  out:
    REPLY_MACRO (VL_API_IPSEC_SAD_ADD_DEL_ENTRY_REPLY);
  }
  
  static void
  vl_api_ikev2_profile_add_del_t_handler (vl_api_ikev2_profile_add_del_t * mp)
  {
    vl_api_ikev2_profile_add_del_reply_t *rmp;
    int rv = 0;
  
  #if IPSEC > 0
    vlib_main_t *vm = vlib_get_main ();
    clib_error_t *error;
    u8 *tmp = format (0, "%s", mp->name);
    error = ikev2_add_del_profile (vm, tmp, mp->is_add);
    vec_free (tmp);
    if (error)
      rv = VNET_API_ERROR_UNSPECIFIED;
  #else
    rv = VNET_API_ERROR_UNIMPLEMENTED;
  #endif
  
    REPLY_MACRO (VL_API_IKEV2_PROFILE_ADD_DEL_REPLY);
  }
  
  static void
    vl_api_ikev2_profile_set_auth_t_handler
    (vl_api_ikev2_profile_set_auth_t * mp)
  {
    vl_api_ikev2_profile_set_auth_reply_t *rmp;
    int rv = 0;
  
  #if IPSEC > 0
    vlib_main_t *vm = vlib_get_main ();
    clib_error_t *error;
    u8 *tmp = format (0, "%s", mp->name);
    u8 *data = vec_new (u8, mp->data_len);
    clib_memcpy (data, mp->data, mp->data_len);
    error = ikev2_set_profile_auth (vm, tmp, mp->auth_method, data, mp->is_hex);
    vec_free (tmp);
    vec_free (data);
    if (error)
      rv = VNET_API_ERROR_UNSPECIFIED;
  #else
    rv = VNET_API_ERROR_UNIMPLEMENTED;
  #endif
  
    REPLY_MACRO (VL_API_IKEV2_PROFILE_SET_AUTH_REPLY);
  }
  
  static void
  vl_api_ikev2_profile_set_id_t_handler (vl_api_ikev2_profile_set_id_t * mp)
  {
    vl_api_ikev2_profile_add_del_reply_t *rmp;
    int rv = 0;
  
  #if IPSEC > 0
    vlib_main_t *vm = vlib_get_main ();
    clib_error_t *error;
    u8 *tmp = format (0, "%s", mp->name);
    u8 *data = vec_new (u8, mp->data_len);
    clib_memcpy (data, mp->data, mp->data_len);
    error = ikev2_set_profile_id (vm, tmp, mp->id_type, data, mp->is_local);
    vec_free (tmp);
    vec_free (data);
    if (error)
      rv = VNET_API_ERROR_UNSPECIFIED;
  #else
    rv = VNET_API_ERROR_UNIMPLEMENTED;
  #endif
  
    REPLY_MACRO (VL_API_IKEV2_PROFILE_SET_ID_REPLY);
  }
  
  static void
  vl_api_ikev2_profile_set_ts_t_handler (vl_api_ikev2_profile_set_ts_t * mp)
  {
    vl_api_ikev2_profile_set_ts_reply_t *rmp;
    int rv = 0;
  
  #if IPSEC > 0
    vlib_main_t *vm = vlib_get_main ();
    clib_error_t *error;
    u8 *tmp = format (0, "%s", mp->name);
    error = ikev2_set_profile_ts (vm, tmp, mp->proto, mp->start_port,
  				mp->end_port, (ip4_address_t) mp->start_addr,
  				(ip4_address_t) mp->end_addr, mp->is_local);
    vec_free (tmp);
    if (error)
      rv = VNET_API_ERROR_UNSPECIFIED;
  #else
    rv = VNET_API_ERROR_UNIMPLEMENTED;
  #endif
  
    REPLY_MACRO (VL_API_IKEV2_PROFILE_SET_TS_REPLY);
  }
  
  static void
  vl_api_ikev2_set_local_key_t_handler (vl_api_ikev2_set_local_key_t * mp)
  {
    vl_api_ikev2_profile_set_ts_reply_t *rmp;
    int rv = 0;
  
  #if IPSEC > 0
    vlib_main_t *vm = vlib_get_main ();
    clib_error_t *error;
  
    error = ikev2_set_local_key (vm, mp->key_file);
    if (error)
      rv = VNET_API_ERROR_UNSPECIFIED;
  #else
    rv = VNET_API_ERROR_UNIMPLEMENTED;
  #endif
  
    REPLY_MACRO (VL_API_IKEV2_SET_LOCAL_KEY_REPLY);
  }
  
  static void
  vl_api_map_add_domain_t_handler (vl_api_map_add_domain_t * mp)
  {
    vl_api_map_add_domain_reply_t *rmp;
    int rv = 0;
    u32 index;
    u8 flags = mp->is_translation ? MAP_DOMAIN_TRANSLATION : 0;
    rv =
      map_create_domain ((ip4_address_t *) & mp->ip4_prefix, mp->ip4_prefix_len,
  		       (ip6_address_t *) & mp->ip6_prefix, mp->ip6_prefix_len,
  		       (ip6_address_t *) & mp->ip6_src,
  		       mp->ip6_src_prefix_len, mp->ea_bits_len,
  		       mp->psid_offset, mp->psid_length, &index,
  		       ntohs (mp->mtu), flags);
  
    /* *INDENT-OFF* */
    REPLY_MACRO2(VL_API_MAP_ADD_DOMAIN_REPLY,
    ({
      rmp->index = ntohl(index);
    }));
    /* *INDENT-ON* */
  }
  
  static void
  vl_api_map_del_domain_t_handler (vl_api_map_del_domain_t * mp)
  {
    vl_api_map_del_domain_reply_t *rmp;
    int rv = 0;
  
    rv = map_delete_domain (ntohl (mp->index));
  
    REPLY_MACRO (VL_API_MAP_DEL_DOMAIN_REPLY);
  }
  
  static void
  vl_api_map_add_del_rule_t_handler (vl_api_map_add_del_rule_t * mp)
  {
    vl_api_map_del_domain_reply_t *rmp;
    int rv = 0;
  
    rv =
      map_add_del_psid (ntohl (mp->index), ntohs (mp->psid),
  		      (ip6_address_t *) mp->ip6_dst, mp->is_add);
  
    REPLY_MACRO (VL_API_MAP_ADD_DEL_RULE_REPLY);
  }
  
  static void
  vl_api_map_domain_dump_t_handler (vl_api_map_domain_dump_t * mp)
  {
    vl_api_map_domain_details_t *rmp;
    map_main_t *mm = &map_main;
    map_domain_t *d;
    unix_shared_memory_queue_t *q;
  
    if (pool_elts (mm->domains) == 0)
      return;
  
    q = vl_api_client_index_to_input_queue (mp->client_index);
    if (q == 0)
      {
        return;
      }
  
    /* *INDENT-OFF* */
    pool_foreach(d, mm->domains,
    ({
      /* Make sure every field is initiated (or don't skip the memset()) */
      rmp = vl_msg_api_alloc (sizeof (*rmp));
      rmp->_vl_msg_id = ntohs(VL_API_MAP_DOMAIN_DETAILS);
      rmp->domain_index = htonl(d - mm->domains);
      rmp->ea_bits_len = d->ea_bits_len;
      rmp->psid_offset = d->psid_offset;
      rmp->psid_length = d->psid_length;
      clib_memcpy(rmp->ip4_prefix, &d->ip4_prefix, sizeof(rmp->ip4_prefix));
      rmp->ip4_prefix_len = d->ip4_prefix_len;
      clib_memcpy(rmp->ip6_prefix, &d->ip6_prefix, sizeof(rmp->ip6_prefix));
      rmp->ip6_prefix_len = d->ip6_prefix_len;
      clib_memcpy(rmp->ip6_src, &d->ip6_src, sizeof(rmp->ip6_src));
      rmp->ip6_src_len = d->ip6_src_len;
      rmp->mtu = htons(d->mtu);
      rmp->is_translation = (d->flags & MAP_DOMAIN_TRANSLATION);
      rmp->context = mp->context;
  
      vl_msg_api_send_shmem (q, (u8 *)&rmp);
    }));
    /* *INDENT-ON* */
  }
  
  static void
  vl_api_map_rule_dump_t_handler (vl_api_map_rule_dump_t * mp)
  {
    unix_shared_memory_queue_t *q;
    u16 i;
    ip6_address_t dst;
    vl_api_map_rule_details_t *rmp;
    map_main_t *mm = &map_main;
    u32 domain_index = ntohl (mp->domain_index);
    map_domain_t *d;
  
    if (pool_elts (mm->domains) == 0)
      return;
  
    d = pool_elt_at_index (mm->domains, domain_index);
    if (!d || !d->rules)
      {
        return;
      }
  
    q = vl_api_client_index_to_input_queue (mp->client_index);
    if (q == 0)
      {
        return;
      }
  
    for (i = 0; i < (0x1 << d->psid_length); i++)
      {
        dst = d->rules[i];
        if (dst.as_u64[0] == 0 && dst.as_u64[1] == 0)
  	{
  	  continue;
  	}
        rmp = vl_msg_api_alloc (sizeof (*rmp));
        memset (rmp, 0, sizeof (*rmp));
        rmp->_vl_msg_id = ntohs (VL_API_MAP_RULE_DETAILS);
        rmp->psid = htons (i);
        clib_memcpy (rmp->ip6_dst, &dst, sizeof (rmp->ip6_dst));
        rmp->context = mp->context;
        vl_msg_api_send_shmem (q, (u8 *) & rmp);
      }
  }
  
  static void
  vl_api_map_summary_stats_t_handler (vl_api_map_summary_stats_t * mp)
  {
    vl_api_map_summary_stats_reply_t *rmp;
    vlib_combined_counter_main_t *cm;
    vlib_counter_t v;
    int i, which;
    u64 total_pkts[VLIB_N_RX_TX];
    u64 total_bytes[VLIB_N_RX_TX];
    map_main_t *mm = &map_main;
    unix_shared_memory_queue_t *q =
      vl_api_client_index_to_input_queue (mp->client_index);
  
    if (!q)
      return;
  
    rmp = vl_msg_api_alloc (sizeof (*rmp));
    rmp->_vl_msg_id = ntohs (VL_API_MAP_SUMMARY_STATS_REPLY);
    rmp->context = mp->context;
    rmp->retval = 0;
  
    memset (total_pkts, 0, sizeof (total_pkts));
    memset (total_bytes, 0, sizeof (total_bytes));
  
    map_domain_counter_lock (mm);
    vec_foreach (cm, mm->domain_counters)
    {
      which = cm - mm->domain_counters;
  
      for (i = 0; i < vec_len (cm->maxi); i++)
        {
  	vlib_get_combined_counter (cm, i, &v);
  	total_pkts[which] += v.packets;
  	total_bytes[which] += v.bytes;
        }
    }
  
    map_domain_counter_unlock (mm);
  
    /* Note: in network byte order! */
    rmp->total_pkts[MAP_DOMAIN_COUNTER_RX] =
      clib_host_to_net_u64 (total_pkts[MAP_DOMAIN_COUNTER_RX]);
    rmp->total_bytes[MAP_DOMAIN_COUNTER_RX] =
      clib_host_to_net_u64 (total_bytes[MAP_DOMAIN_COUNTER_RX]);
    rmp->total_pkts[MAP_DOMAIN_COUNTER_TX] =
      clib_host_to_net_u64 (total_pkts[MAP_DOMAIN_COUNTER_TX]);
    rmp->total_bytes[MAP_DOMAIN_COUNTER_TX] =
      clib_host_to_net_u64 (total_bytes[MAP_DOMAIN_COUNTER_TX]);
    rmp->total_bindings = clib_host_to_net_u64 (pool_elts (mm->domains));
    rmp->total_ip4_fragments = 0;	// Not yet implemented. Should be a simple counter.
    rmp->total_security_check[MAP_DOMAIN_COUNTER_TX] =
      clib_host_to_net_u64 (map_error_counter_get
  			  (ip4_map_node.index, MAP_ERROR_ENCAP_SEC_CHECK));
    rmp->total_security_check[MAP_DOMAIN_COUNTER_RX] =
      clib_host_to_net_u64 (map_error_counter_get
  			  (ip4_map_node.index, MAP_ERROR_DECAP_SEC_CHECK));
  
    vl_msg_api_send_shmem (q, (u8 *) & rmp);
  }
  
  static void
  vl_api_ipsec_sa_set_key_t_handler (vl_api_ipsec_sa_set_key_t * mp)
  {
    vlib_main_t *vm __attribute__ ((unused)) = vlib_get_main ();
    vl_api_ipsec_sa_set_key_reply_t *rmp;
    int rv;
  #if IPSEC > 0
    ipsec_sa_t sa;
    sa.id = ntohl (mp->sa_id);
    sa.crypto_key_len = mp->crypto_key_length;
    clib_memcpy (&sa.crypto_key, mp->crypto_key, sizeof (sa.crypto_key));
    sa.integ_key_len = mp->integrity_key_length;
    clib_memcpy (&sa.integ_key, mp->integrity_key, sizeof (sa.integ_key));
  
    rv = ipsec_set_sa_key (vm, &sa);
  #else
    rv = VNET_API_ERROR_UNIMPLEMENTED;
  #endif
  
    REPLY_MACRO (VL_API_IPSEC_SA_SET_KEY_REPLY);
  }
  
  static void vl_api_cop_interface_enable_disable_t_handler
    (vl_api_cop_interface_enable_disable_t * mp)
  {
    vl_api_cop_interface_enable_disable_reply_t *rmp;
    int rv;
    u32 sw_if_index = ntohl (mp->sw_if_index);
    int enable_disable;
  
    VALIDATE_SW_IF_INDEX (mp);
  
    enable_disable = (int) mp->enable_disable;
  
    rv = cop_interface_enable_disable (sw_if_index, enable_disable);
  
    BAD_SW_IF_INDEX_LABEL;
  
    REPLY_MACRO (VL_API_COP_INTERFACE_ENABLE_DISABLE_REPLY);
  }
  
  static void vl_api_cop_whitelist_enable_disable_t_handler
    (vl_api_cop_whitelist_enable_disable_t * mp)
  {
    vl_api_cop_whitelist_enable_disable_reply_t *rmp;
    cop_whitelist_enable_disable_args_t _a, *a = &_a;
    u32 sw_if_index = ntohl (mp->sw_if_index);
    int rv;
  
    VALIDATE_SW_IF_INDEX (mp);
  
    a->sw_if_index = sw_if_index;
    a->ip4 = mp->ip4;
    a->ip6 = mp->ip6;
    a->default_cop = mp->default_cop;
    a->fib_id = ntohl (mp->fib_id);
  
    rv = cop_whitelist_enable_disable (a);
  
    BAD_SW_IF_INDEX_LABEL;
  
    REPLY_MACRO (VL_API_COP_WHITELIST_ENABLE_DISABLE_REPLY);
  }
  
  static void
  vl_api_get_node_graph_t_handler (vl_api_get_node_graph_t * mp)
  {
    int rv = 0;
    u8 *vector = 0;
    api_main_t *am = &api_main;
    vlib_main_t *vm = vlib_get_main ();
    void *oldheap;
    vl_api_get_node_graph_reply_t *rmp;
  
    pthread_mutex_lock (&am->vlib_rp->mutex);
    oldheap = svm_push_data_heap (am->vlib_rp);
  
    /*
     * Keep the number of memcpy ops to a minimum (e.g. 1).
     */
    vec_validate (vector, 16384);
    vec_reset_length (vector);
  
    /* $$$$ FIXME */
    vector = vlib_node_serialize (&vm->node_main, vector,
  				(u32) ~ 0 /* all threads */ ,
  				1 /* include nexts */ ,
  				1 /* include stats */ );
  
    svm_pop_heap (oldheap);
    pthread_mutex_unlock (&am->vlib_rp->mutex);
  
    /* *INDENT-OFF* */
    REPLY_MACRO2(VL_API_GET_NODE_GRAPH_REPLY,
    ({
      rmp->reply_in_shmem = (uword) vector;
    }));
    /* *INDENT-ON* */
  }
  
  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->pow_enable, mp->trace_ppc);
    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_af_packet_create_t_handler (vl_api_af_packet_create_t * mp)
  {
    vlib_main_t *vm = vlib_get_main ();
    vl_api_af_packet_create_reply_t *rmp;
    int rv = 0;
    u8 *host_if_name = NULL;
    u32 sw_if_index;
  
    host_if_name = format (0, "%s", mp->host_if_name);
    vec_add1 (host_if_name, 0);
  
    rv = af_packet_create_if (vm, host_if_name,
  			    mp->use_random_hw_addr ? 0 : mp->hw_addr,
  			    &sw_if_index);
  
    vec_free (host_if_name);
  
    /* *INDENT-OFF* */
    REPLY_MACRO2(VL_API_AF_PACKET_CREATE_REPLY,
    ({
      rmp->sw_if_index = clib_host_to_net_u32(sw_if_index);
    }));
    /* *INDENT-ON* */
  }
  
  static void
  vl_api_af_packet_delete_t_handler (vl_api_af_packet_delete_t * mp)
  {
    vlib_main_t *vm = vlib_get_main ();
    vl_api_af_packet_delete_reply_t *rmp;
    int rv = 0;
    u8 *host_if_name = NULL;
  
    host_if_name = format (0, "%s", mp->host_if_name);
    vec_add1 (host_if_name, 0);
  
    rv = af_packet_delete_if (vm, host_if_name);
  
    vec_free (host_if_name);
  
    REPLY_MACRO (VL_API_AF_PACKET_DELETE_REPLY);
  }
  
  static void
  vl_api_policer_add_del_t_handler (vl_api_policer_add_del_t * mp)
  {
    vlib_main_t *vm = vlib_get_main ();
    vl_api_policer_add_del_reply_t *rmp;
    int rv = 0;
    u8 *name = NULL;
    sse2_qos_pol_cfg_params_st cfg;
    clib_error_t *error;
    u32 policer_index;
  
    name = format (0, "%s", mp->name);
  
    memset (&cfg, 0, sizeof (cfg));
    cfg.rfc = mp->type;
    cfg.rnd_type = mp->round_type;
    cfg.rate_type = mp->rate_type;
    cfg.rb.kbps.cir_kbps = mp->cir;
    cfg.rb.kbps.eir_kbps = mp->eir;
    cfg.rb.kbps.cb_bytes = mp->cb;
    cfg.rb.kbps.eb_bytes = mp->eb;
    cfg.conform_action.action_type = mp->conform_action_type;
    cfg.conform_action.dscp = mp->conform_dscp;
    cfg.exceed_action.action_type = mp->exceed_action_type;
    cfg.exceed_action.dscp = mp->exceed_dscp;
    cfg.violate_action.action_type = mp->violate_action_type;
    cfg.violate_action.dscp = mp->violate_dscp;
    cfg.color_aware = mp->color_aware;
  
    error = policer_add_del (vm, name, &cfg, &policer_index, mp->is_add);
  
    if (error)
      rv = VNET_API_ERROR_UNSPECIFIED;
  
    /* *INDENT-OFF* */
    REPLY_MACRO2(VL_API_POLICER_ADD_DEL_REPLY,
    ({
      if (rv == 0 &&  mp->is_add)
        rmp->policer_index = ntohl(policer_index);
      else
        rmp->policer_index = ~0;
    }));
    /* *INDENT-ON* */
  }
  
  static void
  send_policer_details (u8 * name,
  		      sse2_qos_pol_cfg_params_st * config,
  		      policer_read_response_type_st * templ,
  		      unix_shared_memory_queue_t * q, u32 context)
  {
    vl_api_policer_details_t *mp;
  
    mp = vl_msg_api_alloc (sizeof (*mp));
    memset (mp, 0, sizeof (*mp));
    mp->_vl_msg_id = ntohs (VL_API_POLICER_DETAILS);
    mp->context = context;
    mp->cir = htonl (config->rb.kbps.cir_kbps);
    mp->eir = htonl (config->rb.kbps.eir_kbps);
    mp->cb = htonl (config->rb.kbps.cb_bytes);
    mp->eb = htonl (config->rb.kbps.eb_bytes);
    mp->rate_type = config->rate_type;
    mp->round_type = config->rnd_type;
    mp->type = config->rfc;
    mp->conform_action_type = config->conform_action.action_type;
    mp->conform_dscp = config->conform_action.dscp;
    mp->exceed_action_type = config->exceed_action.action_type;
    mp->exceed_dscp = config->exceed_action.dscp;
    mp->violate_action_type = config->violate_action.action_type;
    mp->violate_dscp = config->violate_action.dscp;
    mp->single_rate = templ->single_rate ? 1 : 0;
    mp->color_aware = templ->color_aware ? 1 : 0;
    mp->scale = htonl (templ->scale);
    mp->cir_tokens_per_period = htonl (templ->cir_tokens_per_period);
    mp->pir_tokens_per_period = htonl (templ->pir_tokens_per_period);
    mp->current_limit = htonl (templ->current_limit);
    mp->current_bucket = htonl (templ->current_bucket);
    mp->extended_limit = htonl (templ->extended_limit);
    mp->extended_bucket = htonl (templ->extended_bucket);
    mp->last_update_time = clib_host_to_net_u64 (templ->last_update_time);
  
    strncpy ((char *) mp->name, (char *) name, ARRAY_LEN (mp->name) - 1);
  
    vl_msg_api_send_shmem (q, (u8 *) & mp);
  }
  
  static void
  vl_api_policer_dump_t_handler (vl_api_policer_dump_t * mp)
  {
    unix_shared_memory_queue_t *q;
    vnet_policer_main_t *pm = &vnet_policer_main;
    hash_pair_t *hp;
    uword *p;
    u32 pool_index;
    u8 *match_name = 0;
    u8 *name;
    sse2_qos_pol_cfg_params_st *config;
    policer_read_response_type_st *templ;
  
    q = vl_api_client_index_to_input_queue (mp->client_index);
    if (q == 0)
      return;
  
    if (mp->match_name_valid)
      {
        match_name = format (0, "%s%c", mp->match_name, 0);
      }
  
    if (mp->match_name_valid)
      {
        p = hash_get_mem (pm->policer_config_by_name, match_name);
        if (p)
  	{
  	  pool_index = p[0];
  	  config = pool_elt_at_index (pm->configs, pool_index);
  	  templ = pool_elt_at_index (pm->policer_templates, pool_index);
  	  send_policer_details (match_name, config, templ, q, mp->context);
  	}
      }
    else
      {
        /* *INDENT-OFF* */
        hash_foreach_pair (hp, pm->policer_config_by_name,
        ({
          name = (u8 *) hp->key;
          pool_index = hp->value[0];
          config = pool_elt_at_index (pm->configs, pool_index);
          templ = pool_elt_at_index (pm->policer_templates, pool_index);
          send_policer_details(name, config, templ, q, mp->context);
        }));
        /* *INDENT-ON* */
      }
  }
  
  static void
    vl_api_policer_classify_set_interface_t_handler
    (vl_api_policer_classify_set_interface_t * mp)
  {
    vlib_main_t *vm = vlib_get_main ();
    vl_api_policer_classify_set_interface_reply_t *rmp;
    int rv;
    u32 sw_if_index, ip4_table_index, ip6_table_index, l2_table_index;
  
    ip4_table_index = ntohl (mp->ip4_table_index);
    ip6_table_index = ntohl (mp->ip6_table_index);
    l2_table_index = ntohl (mp->l2_table_index);
    sw_if_index = ntohl (mp->sw_if_index);
  
    VALIDATE_SW_IF_INDEX (mp);
  
    rv = vnet_set_policer_classify_intfc (vm, sw_if_index, ip4_table_index,
  					ip6_table_index, l2_table_index,
  					mp->is_add);
  
    BAD_SW_IF_INDEX_LABEL;
  
    REPLY_MACRO (VL_API_POLICER_CLASSIFY_SET_INTERFACE_REPLY);
  }
  
  static void
  send_policer_classify_details (u32 sw_if_index,
  			       u32 table_index,
  			       unix_shared_memory_queue_t * q, u32 context)
  {
    vl_api_policer_classify_details_t *mp;
  
    mp = vl_msg_api_alloc (sizeof (*mp));
    memset (mp, 0, sizeof (*mp));
    mp->_vl_msg_id = ntohs (VL_API_POLICER_CLASSIFY_DETAILS);
    mp->context = context;
    mp->sw_if_index = htonl (sw_if_index);
    mp->table_index = htonl (table_index);
  
    vl_msg_api_send_shmem (q, (u8 *) & mp);
  }
  
  static void
  vl_api_policer_classify_dump_t_handler (vl_api_policer_classify_dump_t * mp)
  {
    unix_shared_memory_queue_t *q;
    policer_classify_main_t *pcm = &policer_classify_main;
    u32 *vec_tbl;
    int i;
  
    q = vl_api_client_index_to_input_queue (mp->client_index);
    if (q == 0)
      return;
  
    vec_tbl = pcm->classify_table_index_by_sw_if_index[mp->type];
  
    if (vec_len (vec_tbl))
      {
        for (i = 0; i < vec_len (vec_tbl); i++)
  	{
  	  if (vec_elt (vec_tbl, i) == ~0)
  	    continue;
  
  	  send_policer_classify_details (i, vec_elt (vec_tbl, i), q,
  					 mp->context);
  	}
      }
  }
  
  static void
  vl_api_netmap_create_t_handler (vl_api_netmap_create_t * mp)
  {
    vlib_main_t *vm = vlib_get_main ();
    vl_api_netmap_create_reply_t *rmp;
    int rv = 0;
    u8 *if_name = NULL;
  
    if_name = format (0, "%s", mp->netmap_if_name);
    vec_add1 (if_name, 0);
  
    rv =
      netmap_create_if (vm, if_name, mp->use_random_hw_addr ? 0 : mp->hw_addr,
  		      mp->is_pipe, mp->is_master, 0);
  
    vec_free (if_name);
  
    REPLY_MACRO (VL_API_NETMAP_CREATE_REPLY);
  }
  
  static void
  vl_api_netmap_delete_t_handler (vl_api_netmap_delete_t * mp)
  {
    vlib_main_t *vm = vlib_get_main ();
    vl_api_netmap_delete_reply_t *rmp;
    int rv = 0;
    u8 *if_name = NULL;
  
    if_name = format (0, "%s", mp->netmap_if_name);
    vec_add1 (if_name, 0);
  
    rv = netmap_delete_if (vm, if_name);
  
    vec_free (if_name);
  
    REPLY_MACRO (VL_API_NETMAP_DELETE_REPLY);
  }
  
  static void
  vl_api_mpls_gre_tunnel_details_t_handler (vl_api_mpls_gre_tunnel_details_t *
  					  mp)
  {
    clib_warning ("BUG");
  }
  
  static void
  send_mpls_gre_tunnel_entry (vpe_api_main_t * am,
  			    unix_shared_memory_queue_t * q,
  			    mpls_gre_tunnel_t * gt, u32 index, u32 context)
  {
    vl_api_mpls_gre_tunnel_details_t *mp;
    mpls_main_t *mm = &mpls_main;
    mpls_encap_t *e;
    int i;
    u32 nlabels;
  
    e = pool_elt_at_index (mm->encaps, gt->encap_index);
    nlabels = vec_len (e->labels);
  
    mp = vl_msg_api_alloc (sizeof (*mp) + nlabels * sizeof (u32));
    memset (mp, 0, sizeof (*mp));
    mp->_vl_msg_id = ntohs (VL_API_MPLS_GRE_TUNNEL_DETAILS);
    mp->context = context;
  
    mp->tunnel_index = htonl (index);
    mp->tunnel_src = gt->tunnel_src.as_u32;
    mp->tunnel_dst = gt->tunnel_dst.as_u32;
    mp->intfc_address = gt->intfc_address.as_u32;
    mp->mask_width = htonl (gt->mask_width);
    mp->inner_fib_index = htonl (gt->inner_fib_index);
    mp->outer_fib_index = htonl (gt->outer_fib_index);
    mp->encap_index = htonl (gt->encap_index);
    mp->hw_if_index = htonl (gt->hw_if_index);
    mp->l2_only = htonl (gt->l2_only);
    mp->nlabels = htonl (nlabels);
  
    for (i = 0; i < nlabels; i++)
      {
        mp->labels[i] =
  	htonl (vnet_mpls_uc_get_label
  	       (clib_host_to_net_u32 (e->labels[i].label_exp_s_ttl)));
      }
  
    vl_msg_api_send_shmem (q, (u8 *) & mp);
  }
  
  static void
  vl_api_mpls_gre_tunnel_dump_t_handler (vl_api_mpls_gre_tunnel_dump_t * mp)
  {
    vpe_api_main_t *am = &vpe_api_main;
    unix_shared_memory_queue_t *q;
    mpls_main_t *mm = &mpls_main;
    mpls_gre_tunnel_t *gt;
    u32 index = ntohl (mp->tunnel_index);
  
    q = vl_api_client_index_to_input_queue (mp->client_index);
    if (q == 0)
      return;
  
    if (index != ~0)
      {
        if (!pool_is_free_index (mm->gre_tunnels, index))
  	{
  	  gt = pool_elt_at_index (mm->gre_tunnels, index);
  	  send_mpls_gre_tunnel_entry (am, q, gt, gt - mm->gre_tunnels,
  				      mp->context);
  	}
      }
    else
      {
        /* *INDENT-OFF* */
        pool_foreach (gt, mm->gre_tunnels,
        ({
          send_mpls_gre_tunnel_entry (am, q, gt, gt - mm->gre_tunnels,
                                      mp->context);
        }));
        /* *INDENT-ON* */
      }
  }
  
  static void
  vl_api_mpls_eth_tunnel_details_t_handler (vl_api_mpls_eth_tunnel_details_t *
  					  mp)
  {
    clib_warning ("BUG");
  }
  
  static void
  send_mpls_eth_tunnel_entry (vpe_api_main_t * am,
  			    unix_shared_memory_queue_t * q,
  			    mpls_eth_tunnel_t * et, u32 index, u32 context)
  {
    mpls_main_t *mm = &mpls_main;
    mpls_encap_t *e;
    int i;
    u32 nlabels;
    vl_api_mpls_eth_tunnel_details_t *mp;
  
    e = pool_elt_at_index (mm->encaps, et->encap_index);
    nlabels = vec_len (e->labels);
  
    mp = vl_msg_api_alloc (sizeof (*mp) + nlabels * sizeof (u32));
    memset (mp, 0, sizeof (*mp));
    mp->_vl_msg_id = ntohs (VL_API_MPLS_ETH_TUNNEL_DETAILS);
    mp->context = context;
  
    mp->tunnel_index = htonl (index);
    memcpy (mp->tunnel_dst_mac, et->tunnel_dst, 6);
    mp->intfc_address = et->intfc_address.as_u32;
    mp->tx_sw_if_index = htonl (et->tx_sw_if_index);
    mp->inner_fib_index = htonl (et->inner_fib_index);
    mp->mask_width = htonl (et->mask_width);
    mp->encap_index = htonl (et->encap_index);
    mp->hw_if_index = htonl (et->hw_if_index);
    mp->l2_only = htonl (et->l2_only);
    mp->nlabels = htonl (nlabels);
  
    for (i = 0; i < nlabels; i++)
      {
        mp->labels[i] =
  	htonl (vnet_mpls_uc_get_label
  	       (clib_host_to_net_u32 (e->labels[i].label_exp_s_ttl)));
      }
  
    vl_msg_api_send_shmem (q, (u8 *) & mp);
  }
  
  static void
  vl_api_mpls_eth_tunnel_dump_t_handler (vl_api_mpls_eth_tunnel_dump_t * mp)
  {
    vpe_api_main_t *am = &vpe_api_main;
    unix_shared_memory_queue_t *q;
    mpls_main_t *mm = &mpls_main;
    mpls_eth_tunnel_t *et;
    u32 index = ntohl (mp->tunnel_index);
  
    q = vl_api_client_index_to_input_queue (mp->client_index);
    if (q == 0)
      return;
  
    if (index != ~0)
      {
        if (!pool_is_free_index (mm->eth_tunnels, index))
  	{
  	  et = pool_elt_at_index (mm->eth_tunnels, index);
  	  send_mpls_eth_tunnel_entry (am, q, et, et - mm->eth_tunnels,
  				      mp->context);
  	}
      }
    else
      {
        /* *INDENT-OFF* */
        pool_foreach (et, mm->eth_tunnels,
        ({
          send_mpls_eth_tunnel_entry (am, q, et, et - mm->eth_tunnels,
                                      mp->context);
        }));
        /* *INDENT-ON* */
      }
  }
  
  static void
  vl_api_mpls_fib_encap_details_t_handler (vl_api_mpls_fib_encap_details_t * mp)
  {
    clib_warning ("BUG");
  }
  
  static void
  send_mpls_fib_encap_details (vpe_api_main_t * am,
  			     unix_shared_memory_queue_t * q,
  			     show_mpls_fib_t * s, u32 context)
  {
    vl_api_mpls_fib_encap_details_t *mp;
    mpls_main_t *mm = &mpls_main;
    mpls_encap_t *e;
    int i;
    u32 nlabels;
  
    e = pool_elt_at_index (mm->encaps, s->entry_index);
    nlabels = vec_len (e->labels);
  
    mp = vl_msg_api_alloc (sizeof (*mp) + nlabels * sizeof (u32));
    memset (mp, 0, sizeof (*mp));
    mp->_vl_msg_id = ntohs (VL_API_MPLS_FIB_ENCAP_DETAILS);
    mp->context = context;
  
    mp->fib_index = htonl (s->fib_index);
    mp->entry_index = htonl (s->entry_index);
    mp->dest = s->dest;
    mp->s_bit = htonl (s->s_bit);
  
    mp->nlabels = htonl (nlabels);
  
    for (i = 0; i < nlabels; i++)
      {
        mp->labels[i] =
  	htonl (vnet_mpls_uc_get_label
  	       (clib_host_to_net_u32 (e->labels[i].label_exp_s_ttl)));
      }
  
    vl_msg_api_send_shmem (q, (u8 *) & mp);
  }
  
  static void
  vl_api_mpls_fib_encap_dump_t_handler (vl_api_mpls_fib_encap_dump_t * mp)
  {
    vpe_api_main_t *am = &vpe_api_main;
    unix_shared_memory_queue_t *q;
    vlib_main_t *vm = &vlib_global_main;
    u64 key;
    u32 value;
    show_mpls_fib_t *records = 0;
    show_mpls_fib_t *s;
    mpls_main_t *mm = &mpls_main;
    ip4_main_t *im = &ip4_main;
    ip4_fib_t *rx_fib;
  
    q = vl_api_client_index_to_input_queue (mp->client_index);
    if (q == 0)
      return;
  
    /* *INDENT-OFF* */
    hash_foreach (key, value, mm->mpls_encap_by_fib_and_dest,
    ({
      vec_add2 (records, s, 1);
      s->fib_index = (u32)(key>>32);
      s->dest = (u32)(key & 0xFFFFFFFF);
      s->entry_index = (u32) value;
    }));
    /* *INDENT-ON* */
  
    if (0 == vec_len (records))
      {
        vlib_cli_output (vm, "MPLS encap table empty");
        goto out;
      }
  
    /* sort output by dst address within fib */
    vec_sort_with_function (records, mpls_dest_cmp);
    vec_sort_with_function (records, mpls_fib_index_cmp);
    vlib_cli_output (vm, "MPLS encap table");
    vlib_cli_output (vm, "%=6s%=16s%=16s", "Table", "Dest address", "Labels");
    vec_foreach (s, records)
    {
      rx_fib = vec_elt_at_index (im->fibs, s->fib_index);
      vlib_cli_output (vm, "%=6d%=16U%=16U", rx_fib->table_id,
  		     format_ip4_address, &s->dest, format_mpls_encap_index,
  		     mm, s->entry_index);
      send_mpls_fib_encap_details (am, q, s, mp->context);
    }
  
  out:
    vec_free (records);
  }
  
  static void
  vl_api_mpls_fib_decap_details_t_handler (vl_api_mpls_fib_decap_details_t * mp)
  {
    clib_warning ("BUG");
  }
  
  static void
  send_mpls_fib_decap_details (vpe_api_main_t * am,
  			     unix_shared_memory_queue_t * q,
  			     show_mpls_fib_t * s,
  			     u32 rx_table_id,
  			     u32 tx_table_id, char *swif_tag, u32 context)
  {
    vl_api_mpls_fib_decap_details_t *mp;
  
    mp = vl_msg_api_alloc (sizeof (*mp));
    memset (mp, 0, sizeof (*mp));
    mp->_vl_msg_id = ntohs (VL_API_MPLS_FIB_DECAP_DETAILS);
    mp->context = context;
  
    mp->fib_index = htonl (s->fib_index);
    mp->entry_index = htonl (s->entry_index);
    mp->dest = s->dest;
    mp->s_bit = htonl (s->s_bit);
    mp->label = htonl (s->label);
    mp->rx_table_id = htonl (rx_table_id);
    mp->tx_table_id = htonl (tx_table_id);
    strncpy ((char *) mp->swif_tag,
  	   (char *) swif_tag, ARRAY_LEN (mp->swif_tag) - 1);
  
    vl_msg_api_send_shmem (q, (u8 *) & mp);
  }
  
  static void
  vl_api_mpls_fib_decap_dump_t_handler (vl_api_mpls_fib_decap_dump_t * mp)
  {
    vpe_api_main_t *am = &vpe_api_main;
    unix_shared_memory_queue_t *q;
    vlib_main_t *vm = &vlib_global_main;
    u64 key;
    u32 value;
    show_mpls_fib_t *records = 0;
    show_mpls_fib_t *s;
    mpls_main_t *mm = &mpls_main;
    ip4_main_t *im = &ip4_main;
    ip4_fib_t *rx_fib;
    ip4_fib_t *tx_fib;
    u32 tx_table_id;
    char *swif_tag;
  
    q = vl_api_client_index_to_input_queue (mp->client_index);
    if (q == 0)
      return;
  
    /* *INDENT-OFF* */
    hash_foreach (key, value, mm->mpls_decap_by_rx_fib_and_label,
    ({
      vec_add2 (records, s, 1);
      s->fib_index = (u32)(key>>32);
      s->entry_index = (u32) value;
      s->label = ((u32) key)>>12;
      s->s_bit = (key & (1<<8)) != 0;
    }));
    /* *INDENT-ON* */
  
    if (!vec_len (records))
      {
        vlib_cli_output (vm, "MPLS decap table empty");
        goto out;
      }
  
    vec_sort_with_function (records, mpls_label_cmp);
    vlib_cli_output (vm, "MPLS decap table");
    vlib_cli_output (vm, "%=10s%=15s%=6s%=6s", "RX Table", "TX Table/Intfc",
  		   "Label", "S-bit");
    vec_foreach (s, records)
    {
      mpls_decap_t *d;
      d = pool_elt_at_index (mm->decaps, s->entry_index);
      if (d->next_index == MPLS_INPUT_NEXT_IP4_INPUT)
        {
  	tx_fib = vec_elt_at_index (im->fibs, d->tx_fib_index);
  	tx_table_id = tx_fib->table_id;
  	swif_tag = "     ";
        }
      else
        {
  	tx_table_id = d->tx_fib_index;
  	swif_tag = "(i)  ";
        }
      rx_fib = vec_elt_at_index (im->fibs, s->fib_index);
  
      vlib_cli_output (vm, "%=10d%=10d%=5s%=6d%=6d", rx_fib->table_id,
  		     tx_table_id, swif_tag, s->label, s->s_bit);
  
      send_mpls_fib_decap_details (am, q, s, rx_fib->table_id,
  				 tx_table_id, swif_tag, mp->context);
    }
  
  out:
    vec_free (records);
  }
  
  static void
  vl_api_classify_table_ids_t_handler (vl_api_classify_table_ids_t * mp)
  {
    unix_shared_memory_queue_t *q;
  
    q = vl_api_client_index_to_input_queue (mp->client_index);
    if (q == 0)
      return;
  
    vnet_classify_main_t *cm = &vnet_classify_main;
    vnet_classify_table_t *t;
    u32 *table_ids = 0;
    u32 count;
  
    /* *INDENT-OFF* */
    pool_foreach (t, cm->tables,
    ({
      vec_add1 (table_ids, ntohl(t - cm->tables));
    }));
    /* *INDENT-ON* */
    count = vec_len (table_ids);
  
    vl_api_classify_table_ids_reply_t *rmp;
    rmp = vl_msg_api_alloc_as_if_client (sizeof (*rmp) + count * sizeof (u32));
    rmp->_vl_msg_id = ntohs (VL_API_CLASSIFY_TABLE_IDS_REPLY);
    rmp->context = mp->context;
    rmp->count = ntohl (count);
    clib_memcpy (rmp->ids, table_ids, count * sizeof (u32));
    rmp->retval = 0;
  
    vl_msg_api_send_shmem (q, (u8 *) & rmp);
  
    vec_free (table_ids);
  }
  
  static void
    vl_api_classify_table_by_interface_t_handler
    (vl_api_classify_table_by_interface_t * mp)
  {
    vl_api_classify_table_by_interface_reply_t *rmp;
    int rv = 0;
  
    u32 sw_if_index = ntohl (mp->sw_if_index);
    u32 *acl = 0;
  
    vec_validate (acl, INPUT_ACL_N_TABLES - 1);
    vec_set (acl, ~0);
  
    VALIDATE_SW_IF_INDEX (mp);
  
    input_acl_main_t *am = &input_acl_main;
  
    int if_idx;
    u32 type;
  
    for (type = 0; type < INPUT_ACL_N_TABLES; type++)
      {
        u32 *vec_tbl = am->classify_table_index_by_sw_if_index[type];
        if (vec_len (vec_tbl))
  	{
  	  for (if_idx = 0; if_idx < vec_len (vec_tbl); if_idx++)
  	    {
  	      if (vec_elt (vec_tbl, if_idx) == ~0 || sw_if_index != if_idx)
  		{
  		  continue;
  		}
  	      acl[type] = vec_elt (vec_tbl, if_idx);
  	    }
  	}
      }
  
    BAD_SW_IF_INDEX_LABEL;
  
    /* *INDENT-OFF* */
    REPLY_MACRO2(VL_API_CLASSIFY_TABLE_BY_INTERFACE_REPLY,
    ({
      rmp->sw_if_index = ntohl(sw_if_index);
      rmp->l2_table_id = ntohl(acl[INPUT_ACL_TABLE_L2]);
      rmp->ip4_table_id = ntohl(acl[INPUT_ACL_TABLE_IP4]);
      rmp->ip6_table_id = ntohl(acl[INPUT_ACL_TABLE_IP6]);
    }));
    /* *INDENT-ON* */
    vec_free (acl);
  }
  
  static void
  vl_api_classify_table_info_t_handler (vl_api_classify_table_info_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_classify_table_info_reply_t *rmp = 0;
  
    vnet_classify_main_t *cm = &vnet_classify_main;
    u32 table_id = ntohl (mp->table_id);
    vnet_classify_table_t *t;
  
    /* *INDENT-OFF* */
    pool_foreach (t, cm->tables,
    ({
      if (table_id == t - cm->tables)
        {
          rmp = vl_msg_api_alloc_as_if_client
            (sizeof (*rmp) + t->match_n_vectors * sizeof (u32x4));
          rmp->_vl_msg_id = ntohs (VL_API_CLASSIFY_TABLE_INFO_REPLY);
          rmp->context = mp->context;
          rmp->table_id = ntohl(table_id);
          rmp->nbuckets = ntohl(t->nbuckets);
          rmp->match_n_vectors = ntohl(t->match_n_vectors);
          rmp->skip_n_vectors = ntohl(t->skip_n_vectors);
          rmp->active_sessions = ntohl(t->active_elements);
          rmp->next_table_index = ntohl(t->next_table_index);
          rmp->miss_next_index = ntohl(t->miss_next_index);
          rmp->mask_length = ntohl(t->match_n_vectors * sizeof (u32x4));
          clib_memcpy(rmp->mask, t->mask, t->match_n_vectors * sizeof(u32x4));
          rmp->retval = 0;
          break;
        }
    }));
    /* *INDENT-ON* */
  
    if (rmp == 0)
      {
        rmp = vl_msg_api_alloc (sizeof (*rmp));
        rmp->_vl_msg_id = ntohs ((VL_API_CLASSIFY_TABLE_INFO_REPLY));
        rmp->context = mp->context;
        rmp->retval = ntohl (VNET_API_ERROR_CLASSIFY_TABLE_NOT_FOUND);
      }
  
    vl_msg_api_send_shmem (q, (u8 *) & rmp);
  }
  
  static void
  vl_api_classify_session_details_t_handler (vl_api_classify_session_details_t *
  					   mp)
  {
    clib_warning ("BUG");
  }
  
  static void
  send_classify_session_details (unix_shared_memory_queue_t * q,
  			       u32 table_id,
  			       u32 match_length,
  			       vnet_classify_entry_t * e, u32 context)
  {
    vl_api_classify_session_details_t *rmp;
  
    rmp = vl_msg_api_alloc (sizeof (*rmp));
    memset (rmp, 0, sizeof (*rmp));
    rmp->_vl_msg_id = ntohs (VL_API_CLASSIFY_SESSION_DETAILS);
    rmp->context = context;
    rmp->table_id = ntohl (table_id);
    rmp->hit_next_index = ntohl (e->next_index);
    rmp->advance = ntohl (e->advance);
    rmp->opaque_index = ntohl (e->opaque_index);
    rmp->match_length = ntohl (match_length);
    clib_memcpy (rmp->match, e->key, match_length);
  
    vl_msg_api_send_shmem (q, (u8 *) & rmp);
  }
  
  static void
  vl_api_classify_session_dump_t_handler (vl_api_classify_session_dump_t * mp)
  {
    vnet_classify_main_t *cm = &vnet_classify_main;
    unix_shared_memory_queue_t *q;
  
    u32 table_id = ntohl (mp->table_id);
    vnet_classify_table_t *t;
  
    q = vl_api_client_index_to_input_queue (mp->client_index);
    if (!q)
      return;
  
    /* *INDENT-OFF* */
    pool_foreach (t, cm->tables,
    ({
      if (table_id == t - cm->tables)
        {
          vnet_classify_bucket_t * b;
          vnet_classify_entry_t * v, * save_v;
          int i, j, k;
  
          for (i = 0; i < t->nbuckets; i++)
            {
              b = &t->buckets [i];
              if (b->offset == 0)
                continue;
  
              save_v = vnet_classify_get_entry (t, b->offset);
              for (j = 0; j < (1<<b->log2_pages); j++)
                {
                  for (k = 0; k < t->entries_per_page; k++)
                    {
                      v = vnet_classify_entry_at_index
                        (t, save_v, j*t->entries_per_page + k);
                      if (vnet_classify_entry_is_free (v))
                        continue;
  
                      send_classify_session_details
                        (q, table_id, t->match_n_vectors * sizeof (u32x4),
                         v, mp->context);
                    }
                }
            }
          break;
        }
    }));
    /* *INDENT-ON* */
  }
  
  static void
  vl_api_set_ipfix_exporter_t_handler (vl_api_set_ipfix_exporter_t * mp)
  {
    vlib_main_t *vm = vlib_get_main ();
    flow_report_main_t *frm = &flow_report_main;
    vl_api_set_ipfix_exporter_reply_t *rmp;
    ip4_address_t collector, src;
    u16 collector_port = UDP_DST_PORT_ipfix;
    u32 path_mtu;
    u32 template_interval;
    u8 udp_checksum;
    u32 fib_id;
    u32 fib_index = ~0;
    int rv = 0;
  
    memcpy (collector.data, mp->collector_address, sizeof (collector.data));
    collector_port = ntohs (mp->collector_port);
    if (collector_port == (u16) ~ 0)
      collector_port = UDP_DST_PORT_ipfix;
    memcpy (src.data, mp->src_address, sizeof (src.data));
    fib_id = ntohl (mp->vrf_id);
  
    ip4_main_t *im = &ip4_main;
    if (fib_id == ~0)
      {
        fib_index = ~0;
      }
    else
      {
        uword *p = hash_get (im->fib_index_by_table_id, fib_id);
        if (!p)
  	{
  	  rv = VNET_API_ERROR_NO_SUCH_FIB;
  	  goto out;
  	}
        fib_index = p[0];
      }
  
    path_mtu = ntohl (mp->path_mtu);
    if (path_mtu == ~0)
      path_mtu = 512;		// RFC 7011 section 10.3.3.
    template_interval = ntohl (mp->template_interval);
    if (template_interval == ~0)
      template_interval = 20;
    udp_checksum = mp->udp_checksum;
  
    if (collector.as_u32 == 0)
      {
        rv = VNET_API_ERROR_INVALID_VALUE;
        goto out;
      }
  
    if (src.as_u32 == 0)
      {
        rv = VNET_API_ERROR_INVALID_VALUE;
        goto out;
      }
  
    if (path_mtu > 1450 /* vpp does not support fragmentation */ )
      {
        rv = VNET_API_ERROR_INVALID_VALUE;
        goto out;
      }
  
    if (path_mtu < 68)
      {
        rv = VNET_API_ERROR_INVALID_VALUE;
        goto out;
      }
  
    /* Reset report streams if we are reconfiguring IP addresses */
    if (frm->ipfix_collector.as_u32 != collector.as_u32 ||
        frm->src_address.as_u32 != src.as_u32 ||
        frm->collector_port != collector_port)
      vnet_flow_reports_reset (frm);
  
    frm->ipfix_collector.as_u32 = collector.as_u32;
    frm->collector_port = collector_port;
    frm->src_address.as_u32 = src.as_u32;
    frm->fib_index = fib_index;
    frm->path_mtu = path_mtu;
    frm->template_interval = template_interval;
    frm->udp_checksum = udp_checksum;
  
    /* Turn on the flow reporting process */
    vlib_process_signal_event (vm, flow_report_process_node.index, 1, 0);
  
  out:
    REPLY_MACRO (VL_API_SET_IPFIX_EXPORTER_REPLY);
  }
  
  static void
  vl_api_ipfix_exporter_dump_t_handler (vl_api_ipfix_exporter_dump_t * mp)
  {
    flow_report_main_t *frm = &flow_report_main;
    unix_shared_memory_queue_t *q;
    vl_api_ipfix_exporter_details_t *rmp;
    ip4_main_t *im = &ip4_main;
    u32 vrf_id;
  
    q = vl_api_client_index_to_input_queue (mp->client_index);
    if (!q)
      return;
  
    rmp = vl_msg_api_alloc (sizeof (*rmp));
    memset (rmp, 0, sizeof (*rmp));
    rmp->_vl_msg_id = ntohs (VL_API_IPFIX_EXPORTER_DETAILS);
    rmp->context = mp->context;
    memcpy (rmp->collector_address, frm->ipfix_collector.data,
  	  sizeof (frm->ipfix_collector.data));
    rmp->collector_port = htons (frm->collector_port);
    memcpy (rmp->src_address, frm->src_address.data,
  	  sizeof (frm->src_address.data));
    if (frm->fib_index == ~0)
      vrf_id = ~0;
    else
      vrf_id = im->fibs[frm->fib_index].table_id;
    rmp->vrf_id = htonl (vrf_id);
    rmp->path_mtu = htonl (frm->path_mtu);
    rmp->template_interval = htonl (frm->template_interval);
    rmp->udp_checksum = (frm->udp_checksum != 0);
  
    vl_msg_api_send_shmem (q, (u8 *) & rmp);
  }
  
  static void
    vl_api_set_ipfix_classify_stream_t_handler
    (vl_api_set_ipfix_classify_stream_t * mp)
  {
    vl_api_set_ipfix_classify_stream_reply_t *rmp;
    flow_report_classify_main_t *fcm = &flow_report_classify_main;
    flow_report_main_t *frm = &flow_report_main;
    u32 domain_id = 0;
    u32 src_port = UDP_DST_PORT_ipfix;
    int rv = 0;
  
    domain_id = ntohl (mp->domain_id);
    src_port = ntohs (mp->src_port);
  
    if (fcm->src_port != 0 &&
        (fcm->domain_id != domain_id || fcm->src_port != (u16) src_port))
      {
        int rv = vnet_stream_change (frm, fcm->domain_id, fcm->src_port,
  				   domain_id, (u16) src_port);
        ASSERT (rv == 0);
      }
  
    fcm->domain_id = domain_id;
    fcm->src_port = (u16) src_port;
  
    REPLY_MACRO (VL_API_SET_IPFIX_CLASSIFY_STREAM_REPLY);
  }
  
  static void
    vl_api_ipfix_classify_stream_dump_t_handler
    (vl_api_ipfix_classify_stream_dump_t * mp)
  {
    flow_report_classify_main_t *fcm = &flow_report_classify_main;
    unix_shared_memory_queue_t *q;
    vl_api_ipfix_classify_stream_details_t *rmp;
  
    q = vl_api_client_index_to_input_queue (mp->client_index);
    if (!q)
      return;
  
    rmp = vl_msg_api_alloc (sizeof (*rmp));
    memset (rmp, 0, sizeof (*rmp));
    rmp->_vl_msg_id = ntohs (VL_API_IPFIX_CLASSIFY_STREAM_DETAILS);
    rmp->context = mp->context;
    rmp->domain_id = htonl (fcm->domain_id);
    rmp->src_port = htons (fcm->src_port);
  
    vl_msg_api_send_shmem (q, (u8 *) & rmp);
  }
  
  static void
    vl_api_ipfix_classify_table_add_del_t_handler
    (vl_api_ipfix_classify_table_add_del_t * mp)
  {
    vl_api_ipfix_classify_table_add_del_reply_t *rmp;
    flow_report_classify_main_t *fcm = &flow_report_classify_main;
    flow_report_main_t *frm = &flow_report_main;
    vnet_flow_report_add_del_args_t args;
    ipfix_classify_table_t *table;
    int is_add;
    u32 classify_table_index;
    u8 ip_version;
    u8 transport_protocol;
    int rv = 0;
  
    classify_table_index = ntohl (mp->table_id);
    ip_version = mp->ip_version;
    transport_protocol = mp->transport_protocol;
    is_add = mp->is_add;
  
    if (fcm->src_port == 0)
      {
        /* call set_ipfix_classify_stream first */
        rv = VNET_API_ERROR_UNSPECIFIED;
        goto out;
      }
  
    memset (&args, 0, sizeof (args));
  
    table = 0;
    int i;
    for (i = 0; i < vec_len (fcm->tables); i++)
      if (ipfix_classify_table_index_valid (i))
        if (fcm->tables[i].classify_table_index == classify_table_index)
  	{
  	  table = &fcm->tables[i];
  	  break;
  	}
  
    if (is_add)
      {
        if (table)
  	{
  	  rv = VNET_API_ERROR_VALUE_EXIST;
  	  goto out;
  	}
        table = ipfix_classify_add_table ();
        table->classify_table_index = classify_table_index;
      }
    else
      {
        if (!table)
  	{
  	  rv = VNET_API_ERROR_NO_SUCH_ENTRY;
  	  goto out;
  	}
      }
  
    table->ip_version = ip_version;
    table->transport_protocol = transport_protocol;
  
    args.opaque.as_uword = table - fcm->tables;
    args.rewrite_callback = ipfix_classify_template_rewrite;
    args.flow_data_callback = ipfix_classify_send_flows;
    args.is_add = is_add;
    args.domain_id = fcm->domain_id;
    args.src_port = fcm->src_port;
  
    rv = vnet_flow_report_add_del (frm, &args);
  
    /* If deleting, or add failed */
    if (is_add == 0 || (rv && is_add))
      ipfix_classify_delete_table (table - fcm->tables);
  
  out:
    REPLY_MACRO (VL_API_SET_IPFIX_CLASSIFY_STREAM_REPLY);
  }
  
  static void
  send_ipfix_classify_table_details (u32 table_index,
  				   unix_shared_memory_queue_t * q,
  				   u32 context)
  {
    flow_report_classify_main_t *fcm = &flow_report_classify_main;
    vl_api_ipfix_classify_table_details_t *mp;
  
    ipfix_classify_table_t *table = &fcm->tables[table_index];
  
    mp = vl_msg_api_alloc (sizeof (*mp));
    memset (mp, 0, sizeof (*mp));
    mp->_vl_msg_id = ntohs (VL_API_IPFIX_CLASSIFY_TABLE_DETAILS);
    mp->context = context;
    mp->table_id = htonl (table->classify_table_index);
    mp->ip_version = table->ip_version;
    mp->transport_protocol = table->transport_protocol;
  
    vl_msg_api_send_shmem (q, (u8 *) & mp);
  }
  
  static void
    vl_api_ipfix_classify_table_dump_t_handler
    (vl_api_ipfix_classify_table_dump_t * mp)
  {
    flow_report_classify_main_t *fcm = &flow_report_classify_main;
    unix_shared_memory_queue_t *q;
    u32 i;
  
    q = vl_api_client_index_to_input_queue (mp->client_index);
    if (!q)
      return;
  
    for (i = 0; i < vec_len (fcm->tables); i++)
      if (ipfix_classify_table_index_valid (i))
        send_ipfix_classify_table_details (i, q, mp->context);
  }
  
  static void
  vl_api_pg_create_interface_t_handler (vl_api_pg_create_interface_t * mp)
  {
    vl_api_pg_create_interface_reply_t *rmp;
    int rv = 0;
  
    pg_main_t *pg = &pg_main;
    u32 sw_if_index = pg_interface_add_or_get (pg, ntohl (mp->interface_id));
  
    /* *INDENT-OFF* */
    REPLY_MACRO2(VL_API_PG_CREATE_INTERFACE_REPLY,
    ({
      rmp->sw_if_index = ntohl(sw_if_index);
    }));
    /* *INDENT-ON* */
  }
  
  static void
  vl_api_pg_capture_t_handler (vl_api_pg_capture_t * mp)
  {
    vl_api_pg_capture_reply_t *rmp;
    int rv = 0;
  
    vnet_main_t *vnm = vnet_get_main ();
    vnet_interface_main_t *im = &vnm->interface_main;
    vnet_hw_interface_t *hi = 0;
  
    u8 *intf_name = format (0, "pg%d", ntohl (mp->interface_id), 0);
    u32 hw_if_index = ~0;
    uword *p = hash_get_mem (im->hw_interface_by_name, intf_name);
    if (p)
      hw_if_index = *p;
    vec_free (intf_name);
  
    if (hw_if_index != ~0)
      {
        pg_capture_args_t _a, *a = &_a;
  
        u32 len = ntohl (mp->pcap_name_length);
        u8 *pcap_file_name = vec_new (u8, len);
        clib_memcpy (pcap_file_name, mp->pcap_file_name, len);
  
        hi = vnet_get_sup_hw_interface (vnm, hw_if_index);
        a->hw_if_index = hw_if_index;
        a->dev_instance = hi->dev_instance;
        a->is_enabled = mp->is_enabled;
        a->pcap_file_name = pcap_file_name;
        a->count = ntohl (mp->count);
  
        clib_error_t *e = pg_capture (a);
        if (e)
  	{
  	  clib_error_report (e);
  	  rv = VNET_API_ERROR_CANNOT_CREATE_PCAP_FILE;
  	}
  
        vec_free (pcap_file_name);
      }
    REPLY_MACRO (VL_API_PG_CAPTURE_REPLY);
  }
  
  static void
  vl_api_pg_enable_disable_t_handler (vl_api_pg_enable_disable_t * mp)
  {
    vl_api_pg_enable_disable_reply_t *rmp;
    int rv = 0;
  
    pg_main_t *pg = &pg_main;
    u32 stream_index = ~0;
  
    int is_enable = mp->is_enabled != 0;
    u32 len = ntohl (mp->stream_name_length) - 1;
  
    if (len > 0)
      {
        u8 *stream_name = vec_new (u8, len);
        clib_memcpy (stream_name, mp->stream_name, len);
        uword *p = hash_get_mem (pg->stream_index_by_name, stream_name);
        if (p)
  	stream_index = *p;
        vec_free (stream_name);
      }
  
    pg_enable_disable (stream_index, is_enable);
  
    REPLY_MACRO (VL_API_PG_ENABLE_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);
  }
  
  static void
  vl_api_ipsec_gre_add_del_tunnel_t_handler (vl_api_ipsec_gre_add_del_tunnel_t *
  					   mp)
  {
    vl_api_ipsec_gre_add_del_tunnel_reply_t *rmp;
    int rv = 0;
    vnet_ipsec_gre_add_del_tunnel_args_t _a, *a = &_a;
    u32 sw_if_index = ~0;
  
    /* Check src & dst are different */
    if (memcmp (mp->src_address, mp->dst_address, 4) == 0)
      {
        rv = VNET_API_ERROR_SAME_SRC_DST;
        goto out;
      }
  
    memset (a, 0, sizeof (*a));
  
    /* ip addresses sent in network byte order */
    clib_memcpy (&(a->src), mp->src_address, 4);
    clib_memcpy (&(a->dst), mp->dst_address, 4);
    a->is_add = mp->is_add;
    a->lsa = ntohl (mp->local_sa_id);
    a->rsa = ntohl (mp->remote_sa_id);
  
    rv = vnet_ipsec_gre_add_del_tunnel (a, &sw_if_index);
  
  out:
      /* *INDENT-OFF* */
      REPLY_MACRO2(VL_API_GRE_ADD_DEL_TUNNEL_REPLY,
      ({
          rmp->sw_if_index = ntohl (sw_if_index);
      }));
      /* *INDENT-ON* */
  }
  
  static void send_ipsec_gre_tunnel_details
    (ipsec_gre_tunnel_t * t, unix_shared_memory_queue_t * q, u32 context)
  {
    vl_api_ipsec_gre_tunnel_details_t *rmp;
  
    rmp = vl_msg_api_alloc (sizeof (*rmp));
    memset (rmp, 0, sizeof (*rmp));
    rmp->_vl_msg_id = ntohs (VL_API_IPSEC_GRE_TUNNEL_DETAILS);
    clib_memcpy (rmp->src_address, &(t->tunnel_src), 4);
    clib_memcpy (rmp->dst_address, &(t->tunnel_dst), 4);
    rmp->sw_if_index = htonl (t->sw_if_index);
    rmp->local_sa_id = htonl (t->local_sa_id);
    rmp->remote_sa_id = htonl (t->remote_sa_id);
    rmp->context = context;
  
    vl_msg_api_send_shmem (q, (u8 *) & rmp);
  }
  
  static void vl_api_ipsec_gre_tunnel_dump_t_handler
    (vl_api_ipsec_gre_tunnel_dump_t * mp)
  {
    unix_shared_memory_queue_t *q;
    ipsec_gre_main_t *igm = &ipsec_gre_main;
    ipsec_gre_tunnel_t *t;
    u32 sw_if_index;
  
    q = vl_api_client_index_to_input_queue (mp->client_index);
    if (q == 0)
      {
        return;
      }
  
    sw_if_index = ntohl (mp->sw_if_index);
  
    if (~0 == sw_if_index)
      {
          /* *INDENT-OFF* */
          pool_foreach (t, igm->tunnels,
          ({
              send_ipsec_gre_tunnel_details(t, q, mp->context);
          }));
          /* *INDENT-ON* */
      }
    else
      {
        if ((sw_if_index >= vec_len (igm->tunnel_index_by_sw_if_index)) ||
  	  (~0 == igm->tunnel_index_by_sw_if_index[sw_if_index]))
  	{
  	  return;
  	}
        t = &igm->tunnels[igm->tunnel_index_by_sw_if_index[sw_if_index]];
        send_ipsec_gre_tunnel_details (t, q, mp->context);
      }
  }
  
  static void
  vl_api_delete_subif_t_handler (vl_api_delete_subif_t * mp)
  {
    vl_api_delete_subif_reply_t *rmp;
    int rv;
  
    rv = vnet_delete_sub_interface (ntohl (mp->sw_if_index));
  
    REPLY_MACRO (VL_API_DELETE_SUBIF_REPLY);
  }
  
  #define BOUNCE_HANDLER(nn)                                              \
  static void vl_api_##nn##_t_handler (                                   \
      vl_api_##nn##_t *mp)                                                \
  {                                                                       \
      vpe_client_registration_t *reg;                                     \
      vpe_api_main_t * vam = &vpe_api_main;                               \
      unix_shared_memory_queue_t * q;                                     \
                                                                          \
      /* One registration only... */                                      \
      pool_foreach(reg, vam->nn##_registrations,                          \
      ({                                                                  \
          q = vl_api_client_index_to_input_queue (reg->client_index);     \
          if (q) {                                                        \
              /*                                                          \
               * If the queue is stuffed, turf the msg and complain       \
               * It's unlikely that the intended recipient is             \
               * alive; avoid deadlock at all costs.                      \
               */                                                         \
              if (q->cursize == q->maxsize) {                             \
                  clib_warning ("ERROR: receiver queue full, drop msg");  \
                  vl_msg_api_free (mp);                                   \
                  return;                                                 \
              }                                                           \
              vl_msg_api_send_shmem (q, (u8 *)&mp);                       \
              return;                                                     \
          }                                                               \
      }));                                                                \
      vl_msg_api_free (mp);                                               \
  }
  
  /*
   * vpe_api_hookup
   * Add vpe's API message handlers to the table.
   * vlib has alread mapped shared memory and
   * added the client registration handlers.
   * See .../open-repo/vlib/memclnt_vlib.c:memclnt_process()
   */
  
  static clib_error_t *
  vpe_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_vpe_api_msg;
  #undef _
  
    /*
     * Manually register the sr tunnel add del msg, so we trace
     * enough bytes to capture a typical segment list
     */
    vl_msg_api_set_handlers (VL_API_SR_TUNNEL_ADD_DEL,
  			   "sr_tunnel_add_del",
  			   vl_api_sr_tunnel_add_del_t_handler,
  			   vl_noop_handler,
  			   vl_api_sr_tunnel_add_del_t_endian,
  			   vl_api_sr_tunnel_add_del_t_print, 256, 1);
  
  
    /*
     * Manually register the sr policy add del msg, so we trace
     * enough bytes to capture a typical tunnel name list
     */
    vl_msg_api_set_handlers (VL_API_SR_POLICY_ADD_DEL,
  			   "sr_policy_add_del",
  			   vl_api_sr_policy_add_del_t_handler,
  			   vl_noop_handler,
  			   vl_api_sr_policy_add_del_t_endian,
  			   vl_api_sr_policy_add_del_t_print, 256, 1);
  
    /*
     * Trace space for 8 MPLS encap labels, classifier mask+match
     */
    am->api_trace_cfg[VL_API_MPLS_ADD_DEL_ENCAP].size += 8 * sizeof (u32);
    am->api_trace_cfg[VL_API_CLASSIFY_ADD_DEL_TABLE].size += 5 * sizeof (u32x4);
    am->api_trace_cfg[VL_API_CLASSIFY_ADD_DEL_SESSION].size
      += 5 * sizeof (u32x4);
    am->api_trace_cfg[VL_API_VXLAN_ADD_DEL_TUNNEL].size += 16 * sizeof (u32);
  
    /*
     * Thread-safe API messages
     */
    am->is_mp_safe[VL_API_IP_ADD_DEL_ROUTE] = 1;
    am->is_mp_safe[VL_API_GET_NODE_GRAPH] = 1;
  
    return 0;
  }
  
  VLIB_API_INIT_FUNCTION (vpe_api_hookup);
  
  static clib_error_t *
  vpe_api_init (vlib_main_t * vm)
  {
    vpe_api_main_t *am = &vpe_api_main;
  
    am->vlib_main = vm;
    am->vnet_main = vnet_get_main ();
    am->interface_events_registration_hash = hash_create (0, sizeof (uword));
    am->to_netconf_server_registration_hash = hash_create (0, sizeof (uword));
    am->from_netconf_server_registration_hash = hash_create (0, sizeof (uword));
    am->to_netconf_client_registration_hash = hash_create (0, sizeof (uword));
    am->from_netconf_client_registration_hash = hash_create (0, sizeof (uword));
    am->oam_events_registration_hash = hash_create (0, sizeof (uword));
  
    vl_api_init (vm);
    vl_set_memory_region_name ("/vpe-api");
    vl_enable_disable_memory_api (vm, 1 /* enable it */ );
  
    return 0;
  }
  
  VLIB_INIT_FUNCTION (vpe_api_init);
  
  
  static clib_error_t *
  api_segment_config (vlib_main_t * vm, unformat_input_t * input)
  {
    u8 *chroot_path;
    u64 baseva, size, pvt_heap_size;
    int uid, gid, rv;
    const int max_buf_size = 4096;
    char *s, *buf;
    struct passwd _pw, *pw;
    struct group _grp, *grp;
    clib_error_t *e;
    buf = vec_new (char, 128);
    while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
      {
        if (unformat (input, "prefix %s", &chroot_path))
  	{
  	  vec_add1 (chroot_path, 0);
  	  vl_set_memory_root_path ((char *) chroot_path);
  	}
        else if (unformat (input, "uid %d", &uid))
  	vl_set_memory_uid (uid);
        else if (unformat (input, "gid %d", &gid))
  	vl_set_memory_gid (gid);
        else if (unformat (input, "baseva %llx", &baseva))
  	vl_set_global_memory_baseva (baseva);
        else if (unformat (input, "global-size %lldM", &size))
  	vl_set_global_memory_size (size * (1ULL << 20));
        else if (unformat (input, "global-size %lldG", &size))
  	vl_set_global_memory_size (size * (1ULL << 30));
        else if (unformat (input, "global-size %lld", &size))
  	vl_set_global_memory_size (size);
        else if (unformat (input, "global-pvt-heap-size %lldM", &pvt_heap_size))
  	vl_set_global_pvt_heap_size (pvt_heap_size * (1ULL << 20));
        else if (unformat (input, "global-pvt-heap-size size %lld",
  			 &pvt_heap_size))
  	vl_set_global_pvt_heap_size (pvt_heap_size);
        else if (unformat (input, "api-pvt-heap-size %lldM", &pvt_heap_size))
  	vl_set_api_pvt_heap_size (pvt_heap_size * (1ULL << 20));
        else if (unformat (input, "api-pvt-heap-size size %lld",
  			 &pvt_heap_size))
  	vl_set_api_pvt_heap_size (pvt_heap_size);
        else if (unformat (input, "api-size %lldM", &size))
  	vl_set_api_memory_size (size * (1ULL << 20));
        else if (unformat (input, "api-size %lldG", &size))
  	vl_set_api_memory_size (size * (1ULL << 30));
        else if (unformat (input, "api-size %lld", &size))
  	vl_set_api_memory_size (size);
        else if (unformat (input, "uid %s", &s))
  	{
  	  /* lookup the username */
  	  pw = NULL;
  	  while (((rv =
  		   getpwnam_r (s, &_pw, buf, vec_len (buf), &pw)) == ERANGE)
  		 && (vec_len (buf) <= max_buf_size))
  	    {
  	      vec_resize (buf, vec_len (buf) * 2);
  	    }
  	  if (rv < 0)
  	    {
  	      e = clib_error_return_code (0, rv,
  					  CLIB_ERROR_ERRNO_VALID |
  					  CLIB_ERROR_FATAL,
  					  "cannot fetch username %s", s);
  	      vec_free (s);
  	      vec_free (buf);
  	      return e;
  	    }
  	  if (pw == NULL)
  	    {
  	      e =
  		clib_error_return_fatal (0, "username %s does not exist", s);
  	      vec_free (s);
  	      vec_free (buf);
  	      return e;
  	    }
  	  vec_free (s);
  	  vl_set_memory_uid (pw->pw_uid);
  	}
        else if (unformat (input, "gid %s", &s))
  	{
  	  /* lookup the group name */
  	  grp = NULL;
  	  while (((rv =
  		   getgrnam_r (s, &_grp, buf, vec_len (buf), &grp)) == ERANGE)
  		 && (vec_len (buf) <= max_buf_size))
  	    {
  	      vec_resize (buf, vec_len (buf) * 2);
  	    }
  	  if (rv != 0)
  	    {
  	      e = clib_error_return_code (0, rv,
  					  CLIB_ERROR_ERRNO_VALID |
  					  CLIB_ERROR_FATAL,
  					  "cannot fetch group %s", s);
  	      vec_free (s);
  	      vec_free (buf);
  	      return e;
  	    }
  	  if (grp == NULL)
  	    {
  	      e = clib_error_return_fatal (0, "group %s does not exist", s);
  	      vec_free (s);
  	      vec_free (buf);
  	      return e;
  	    }
  	  vec_free (s);
  	  vec_free (buf);
  	  vl_set_memory_gid (grp->gr_gid);
  	}
        else
  	return clib_error_return (0, "unknown input `%U'",
  				  format_unformat_error, input);
      }
    return 0;
  }
  
  VLIB_EARLY_CONFIG_FUNCTION (api_segment_config, "api-segment");
  
  void *
  get_unformat_vnet_sw_interface (void)
  {
    return (void *) &unformat_vnet_sw_interface;
  }
  
  #undef vl_api_version
  #define vl_api_version(n,v) static u32 vpe_api_version = v;
  #include <vpp-api/vpe.api.h>
  #undef vl_api_version
  
  int
  vl_msg_api_version_check (vl_api_memclnt_create_t * mp)
  {
    if (clib_host_to_net_u32 (mp->api_versions[0]) != vpe_api_version)
      {
        clib_warning ("vpe API mismatch: 0x%08x instead of 0x%08x",
  		    clib_host_to_net_u32 (mp->api_versions[0]),
  		    vpe_api_version);
        return -1;
      }
    return 0;
  }
  
  static u8 *
  format_arp_event (u8 * s, va_list * args)
  {
    vl_api_ip4_arp_event_t *event = va_arg (*args, vl_api_ip4_arp_event_t *);
  
    s = format (s, "pid %d: ", event->pid);
    if (event->mac_ip)
      s = format (s, "bd mac/ip4 binding events");
    else
      s = format (s, "resolution for %U", format_ip4_address, &event->address);
    return s;
  }
  
  static u8 *
  format_nd_event (u8 * s, va_list * args)
  {
    vl_api_ip6_nd_event_t *event = va_arg (*args, vl_api_ip6_nd_event_t *);
  
    s = format (s, "pid %d: ", event->pid);
    if (event->mac_ip)
      s = format (s, "bd mac/ip6 binding events");
    else
      s = format (s, "resolution for %U", format_ip6_address, event->address);
    return s;
  }
  
  static clib_error_t *
  show_ip_arp_nd_events_fn (vlib_main_t * vm,
  			  unformat_input_t * input, vlib_cli_command_t * cmd)
  {
    vpe_api_main_t *am = &vpe_api_main;
    vl_api_ip4_arp_event_t *arp_event;
    vl_api_ip6_nd_event_t *nd_event;
  
    if ((pool_elts (am->arp_events) == 0) && (pool_elts (am->nd_events) == 0))
      {
        vlib_cli_output (vm, "No active arp or nd event registrations");
        return 0;
      }
  
    /* *INDENT-OFF* */
    pool_foreach (arp_event, am->arp_events,
    ({
      vlib_cli_output (vm, "%U", format_arp_event, arp_event);
    }));
  
    pool_foreach (nd_event, am->nd_events,
    ({
      vlib_cli_output (vm, "%U", format_nd_event, nd_event);
    }));
    /* *INDENT-ON* */
  
    return 0;
  }
  
  /* *INDENT-OFF* */
  VLIB_CLI_COMMAND (show_ip_arp_nd_events, static) = {
    .path = "show arp-nd-event registrations",
    .function = show_ip_arp_nd_events_fn,
    .short_help = "Show ip4 arp and ip6 nd event registrations",
  };
  /* *INDENT-ON* */
  
  /*
   * fd.io coding-style-patch-verification: ON
   *
   * Local Variables:
   * eval: (c-set-style "gnu")
   * End:
   */
  