Line data    Source code

       1             : /*
       2             :  *------------------------------------------------------------------
       3             :  * lldp_api.c - lldp api
       4             :  *
       5             :  * Copyright (c) 2017 Cisco and/or its affiliates.
       6             :  * Licensed under the Apache License, Version 2.0 (the "License");
       7             :  * you may not use this file except in compliance with the License.
       8             :  * You may obtain a copy of the License at:
       9             :  *
      10             :  *     http://www.apache.org/licenses/LICENSE-2.0
      11             :  *
      12             :  * Unless required by applicable law or agreed to in writing, software
      13             :  * distributed under the License is distributed on an "AS IS" BASIS,
      14             :  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
      15             :  * See the License for the specific language governing permissions and
      16             :  * limitations under the License.
      17             :  *------------------------------------------------------------------
      18             :  */
      19             : 
      20             : #include <vnet/vnet.h>
      21             : #include <vlibmemory/api.h>
      22             : 
      23             : #include <vnet/interface.h>
      24             : #include <vnet/api_errno.h>
      25             : #include <lldp/lldp.h>
      26             : 
      27             : #include <vnet/ip/ip4_packet.h>
      28             : #include <vnet/ip/ip6_packet.h>
      29             : #include <vnet/ip/ip_types_api.h>
      30             : 
      31             : /* define message IDs */
      32             : #include <vnet/format_fns.h>
      33             : #include <lldp/lldp.api_enum.h>
      34             : #include <lldp/lldp.api_types.h>
      35             : 
      36             : /**
      37             :  * Base message ID fot the plugin
      38             :  */
      39             : static u32 lldp_base_msg_id;
      40             : #define REPLY_MSG_ID_BASE lldp_base_msg_id
      41             : 
      42             : #include <vlibapi/api_helper_macros.h>
      43             : 
      44             : static void
      45           0 : vl_api_lldp_config_t_handler (vl_api_lldp_config_t * mp)
      46             : {
      47             :   vl_api_lldp_config_reply_t *rmp;
      48           0 :   int rv = 0;
      49           0 :   u8 *sys_name = 0;
      50             : 
      51           0 :   sys_name = vl_api_from_api_to_new_vec (mp, &mp->system_name);
      52             : 
      53           0 :   if (lldp_cfg_set (&sys_name, ntohl (mp->tx_hold), ntohl (mp->tx_interval))
      54             :       != lldp_ok)
      55             :     {
      56           0 :       vec_free (sys_name);
      57           0 :       rv = VNET_API_ERROR_INVALID_VALUE;
      58             :     }
      59             : 
      60           0 :   REPLY_MACRO (VL_API_LLDP_CONFIG_REPLY);
      61             : }
      62             : 
      63             : static void
      64           0 : vl_api_sw_interface_set_lldp_t_handler (vl_api_sw_interface_set_lldp_t * mp)
      65             : {
      66             :   vl_api_sw_interface_set_lldp_reply_t *rmp;
      67           0 :   int rv = 0;
      68           0 :   u8 *mgmt_oid = 0, *mgmt_ip4 = 0, *mgmt_ip6 = 0;
      69           0 :   char *port_desc = 0;
      70           0 :   u8 no_data[128] = { 0 };
      71             :   ip4_address_t ip4;
      72             :   ip6_address_t ip6;
      73             : 
      74           0 :   if (vl_api_string_len (&mp->port_desc) > 0)
      75             :     {
      76           0 :       port_desc = vl_api_from_api_to_new_c_string (&mp->port_desc);
      77             :     }
      78             : 
      79           0 :   ip4_address_decode (mp->mgmt_ip4, &ip4);
      80             : 
      81           0 :   if (ip4.as_u32 != 0)
      82             :     {
      83           0 :       vec_validate (mgmt_ip4, sizeof (ip4_address_t) - 1);
      84           0 :       clib_memcpy (mgmt_ip4, &ip4, sizeof (ip4));
      85             :     }
      86             : 
      87           0 :   ip6_address_decode (mp->mgmt_ip6, &ip6);
      88             : 
      89           0 :   if (!ip6_address_is_zero (&ip6))
      90             :     {
      91           0 :       vec_validate (mgmt_ip6, sizeof (ip6_address_t) - 1);
      92           0 :       clib_memcpy (mgmt_ip6, &ip6, sizeof (ip6));
      93             :     }
      94             : 
      95           0 :   if (memcmp (mp->mgmt_oid, no_data, strlen ((char *) mp->mgmt_oid)) != 0)
      96             :     {
      97           0 :       vec_validate (mgmt_oid, strlen ((char *) mp->mgmt_oid) - 1);
      98           0 :       strncpy ((char *) mgmt_oid, (char *) mp->mgmt_oid, vec_len (mgmt_oid));
      99             :     }
     100             : 
     101           0 :   VALIDATE_SW_IF_INDEX (mp);
     102             : 
     103           0 :   if (lldp_cfg_intf_set (ntohl (mp->sw_if_index), (u8 **) & port_desc,
     104             :                          &mgmt_ip4, &mgmt_ip6, &mgmt_oid,
     105           0 :                          mp->enable) != lldp_ok)
     106             :     {
     107           0 :       vec_free (port_desc);
     108           0 :       vec_free (mgmt_ip4);
     109           0 :       vec_free (mgmt_ip6);
     110           0 :       vec_free (mgmt_oid);
     111           0 :       rv = VNET_API_ERROR_INVALID_VALUE;
     112             :     }
     113             : 
     114           0 :   BAD_SW_IF_INDEX_LABEL;
     115             : 
     116           0 :   REPLY_MACRO (VL_API_SW_INTERFACE_SET_LLDP_REPLY);
     117             : }
     118             : 
     119             : 
     120             : /*
     121             :  *  * lldp_api_hookup
     122             :  *   * Add vpe's API message handlers to the table.
     123             :  *    * vlib has already mapped shared memory and
     124             :  *     * added the client registration handlers.
     125             :  *      * See .../vlib-api/vlibmemory/memclnt_vlib.c:memclnt_process()
     126             :  *       */
     127             : #include <lldp/lldp.api.c>
     128             : 
     129             : static clib_error_t *
     130         575 : lldp_api_hookup (vlib_main_t * vm)
     131             : {
     132             :   /*
     133             :    * Set up the (msg_name, crc, message-id) table
     134             :    */
     135         575 :   lldp_base_msg_id = setup_message_id_table ();
     136             : 
     137         575 :   return 0;
     138             : }
     139             : 
     140        1151 : VLIB_API_INIT_FUNCTION (lldp_api_hookup);
     141             : 
     142             : #include <vlib/unix/plugin.h>
     143             : #include <vpp/app/version.h>
     144             : 
     145             : /* *INDENT-OFF* */
     146             : VLIB_PLUGIN_REGISTER () = {
     147             :     .version = VPP_BUILD_VER,
     148             :     .description = "Link Layer Discovery Protocol (LLDP)",
     149             : };
     150             : /* *INDENT-ON* */
     151             : 
     152             : 
     153             : /*
     154             :  * fd.io coding-style-patch-verification: ON
     155             :  *
     156             :  * Local Variables:
     157             :  * eval: (c-set-style "gnu")
     158             :  * End:
     159             :  */