text: /*
   * ------------------------------------------------------------------
   * sr_api.c - ipv6 segment routing api
   *
   * Copyright (c) 2016 Cisco and/or its affiliates. Licensed under the Apache
   * License, Version 2.0 (the "License"); you may not use this file except in
   * compliance with the License. You may obtain a copy of the License at:
   *
   * http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
   * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
   * License for the specific language governing permissions and limitations
   * under the License.
   * ------------------------------------------------------------------
   */
  
  #include <vnet/vnet.h>
  #include <vnet/srmpls/sr_mpls.h>
  #include <vlibmemory/api.h>
  
  #include <vnet/interface.h>
  #include <vnet/api_errno.h>
  #include <vnet/feature/feature.h>
  
  #include <vnet/ip/ip_types_api.h>
  
  #include <vnet/vnet_msg_enum.h>
  
  #define vl_typedefs		/* define message structures */
  #include <vnet/vnet_all_api_h.h>
  #undef vl_typedefs
  
  #define vl_endianfun		/* define message structures */
  #include <vnet/vnet_all_api_h.h>
  #undef vl_endianfun
  
  /* instantiate all the print functions we know about */
  #define vl_print(handle, ...) vlib_cli_output (handle, __VA_ARGS__)
  #define vl_printfun
  #include <vnet/vnet_all_api_h.h>
  #undef vl_printfun
  
  #include <vlibapi/api_helper_macros.h>
  
  #define foreach_vpe_api_msg                             \
  _(SR_MPLS_POLICY_DEL, sr_mpls_policy_del)                         \
  _(SR_MPLS_STEERING_ADD_DEL, sr_mpls_steering_add_del)             \
  _(SR_MPLS_POLICY_ASSIGN_ENDPOINT_COLOR, sr_mpls_policy_assign_endpoint_color)
  
  
  static void
  vl_api_sr_mpls_policy_add_t_handler (vl_api_sr_mpls_policy_add_t * mp)
  {
    vl_api_sr_mpls_policy_add_reply_t *rmp;
  
    mpls_label_t *segments = 0, *seg;
    mpls_label_t this_address = 0;
  
    int i;
    for (i = 0; i < mp->n_segments; i++)
      {
        vec_add2 (segments, seg, 1);
        this_address = ntohl (mp->segments[i]);
        clib_memcpy (seg, &this_address, sizeof (this_address));
      }
  
    int rv = 0;
    rv = sr_mpls_policy_add (ntohl (mp->bsid),
  			   segments, mp->is_spray, ntohl (mp->weight));
    vec_free (segments);
  
    REPLY_MACRO (VL_API_SR_MPLS_POLICY_ADD_REPLY);
  }
  
  static void
  vl_api_sr_mpls_policy_mod_t_handler (vl_api_sr_mpls_policy_mod_t * mp)
  {
    vl_api_sr_mpls_policy_mod_reply_t *rmp;
  
    mpls_label_t *segments = 0, *seg;
    mpls_label_t this_address = 0;
  
    int i;
    for (i = 0; i < mp->n_segments; i++)
      {
        vec_add2 (segments, seg, 1);
        this_address = ntohl (mp->segments[i]);
        clib_memcpy (seg, &this_address, sizeof (this_address));
      }
  
    int rv = 0;
    rv = sr_mpls_policy_mod (ntohl (mp->bsid),
  			   ntohl (mp->operation), segments,
  			   ntohl (mp->sl_index), ntohl (mp->weight));
    vec_free (segments);
  
    REPLY_MACRO (VL_API_SR_MPLS_POLICY_MOD_REPLY);
  }
  
  static void
  vl_api_sr_mpls_policy_del_t_handler (vl_api_sr_mpls_policy_del_t * mp)
  {
    vl_api_sr_mpls_policy_del_reply_t *rmp;
    int rv = 0;
    rv = sr_mpls_policy_del (ntohl (mp->bsid));
  
    REPLY_MACRO (VL_API_SR_MPLS_POLICY_DEL_REPLY);
  }
  
  static void vl_api_sr_mpls_steering_add_del_t_handler
    (vl_api_sr_mpls_steering_add_del_t * mp)
  {
    vl_api_sr_mpls_steering_add_del_reply_t *rmp;
    fib_prefix_t prefix;
    ip46_address_t next_hop;
    clib_memset (&prefix, 0, sizeof (ip46_address_t));
  
    ip_prefix_decode (&mp->prefix, &prefix);
    ip_address_decode (&mp->next_hop, &next_hop);
  
    int rv = 0;
    if (mp->is_del)
      rv = sr_mpls_steering_policy_del (&prefix.fp_addr,
  				      prefix.fp_len,
  				      ip46_address_is_ip4 (&prefix.fp_addr) ?
  				      SR_STEER_IPV4 : SR_STEER_IPV6,
  				      ntohl (mp->table_id),
  				      ntohl (mp->color));
    else
      rv = sr_mpls_steering_policy_add (ntohl (mp->bsid),
  				      ntohl (mp->table_id),
  				      &prefix.fp_addr,
  				      prefix.fp_len,
  				      ip46_address_is_ip4 (&prefix.fp_addr) ?
  				      SR_STEER_IPV4 : SR_STEER_IPV6,
  				      &next_hop,
  				      ip46_address_is_ip4 (&next_hop) ?
  				      SR_STEER_IPV4 : SR_STEER_IPV6,
  				      ntohl (mp->color), mp->co_bits,
  				      ntohl (mp->vpn_label));
  
    REPLY_MACRO (VL_API_SR_MPLS_STEERING_ADD_DEL_REPLY);
  }
  
  static void vl_api_sr_mpls_policy_assign_endpoint_color_t_handler
    (vl_api_sr_mpls_policy_assign_endpoint_color_t * mp)
  {
    vl_api_sr_mpls_policy_assign_endpoint_color_reply_t *rmp;
    int rv = 0;
  
    ip46_address_t endpoint;
    clib_memset (&endpoint, 0, sizeof (ip46_address_t));
    ip_address_decode (&mp->endpoint, &endpoint);
  
    rv = sr_mpls_policy_assign_endpoint_color (ntohl (mp->bsid),
  					     &endpoint,
  					     ip46_address_is_ip4 (&endpoint) ?
  					     SR_STEER_IPV4 : SR_STEER_IPV6,
  					     ntohl (mp->color));
  
    REPLY_MACRO (VL_API_SR_MPLS_POLICY_ASSIGN_ENDPOINT_COLOR_REPLY);
  }
  
  /*
   * sr_mpls_api_hookup Add vpe's API message handlers to the table. vlib has
   * already mapped shared memory and added the client registration handlers.
   * See .../vlib-api/vlibmemory/memclnt_vlib.c:memclnt_process()
   */
  #define vl_msg_name_crc_list
  #include <vnet/vnet_all_api_h.h>
  #undef vl_msg_name_crc_list
  
  static void
  setup_message_id_table (api_main_t * am)
  {
  #define _(id,n,crc) vl_msg_api_add_msg_name_crc (am, #n "_" #crc, id);
    foreach_vl_msg_name_crc_sr_mpls;
  #undef _
  }
  
  static clib_error_t *
  sr_mpls_api_hookup (vlib_main_t * vm)
  {
    api_main_t *am = vlibapi_get_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 policy add msg, so we trace enough bytes
     * to capture a typical segment list
     */
    vl_msg_api_set_handlers (VL_API_SR_MPLS_POLICY_ADD,
  			   "sr_mpls_policy_add",
  			   vl_api_sr_mpls_policy_add_t_handler,
  			   vl_noop_handler,
  			   vl_api_sr_mpls_policy_add_t_endian,
  			   vl_api_sr_mpls_policy_add_t_print, 256, 1);
  
    /*
     * Manually register the sr policy mod msg, so we trace enough bytes
     * to capture a typical segment list
     */
    vl_msg_api_set_handlers (VL_API_SR_MPLS_POLICY_MOD,
  			   "sr_mpls_policy_mod",
  			   vl_api_sr_mpls_policy_mod_t_handler,
  			   vl_noop_handler,
  			   vl_api_sr_mpls_policy_mod_t_endian,
  			   vl_api_sr_mpls_policy_mod_t_print, 256, 1);
  
    /*
     * Set up the (msg_name, crc, message-id) table
     */
    setup_message_id_table (am);
  
    return 0;
  }
  
  VLIB_API_INIT_FUNCTION (sr_mpls_api_hookup);
  
  /*
   * fd.io coding-style-patch-verification: ON
   *
   * Local Variables: eval: (c-set-style "gnu") End:
   */
  