src/vnet/feature/feature_api.c

/*
 *------------------------------------------------------------------
 * feature_api.c - vnet feature api
 *
 * Copyright (c) 2016 Cisco and/or its affiliates.
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at:
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *------------------------------------------------------------------
 */

#include <vnet/vnet.h>
#include <vlibmemory/api.h>
#include <vnet/feature/feature.h>

#include <vnet/feature/feature.api_enum.h>
#include <vnet/feature/feature.api_types.h>

#define REPLY_MSG_ID_BASE msg_id_base
#include <vlibapi/api_helper_macros.h>

static u16 msg_id_base;

static void
vl_api_feature_enable_disable_t_handler (vl_api_feature_enable_disable_t * mp)
{
  vl_api_feature_enable_disable_reply_t *rmp;
  int rv = 0;

  VALIDATE_SW_IF_INDEX (mp);

  u8 *arc_name = format (0, "%s%c", mp->arc_name, 0);
  u8 *feature_name = format (0, "%s%c", mp->feature_name, 0);

  vec_terminate_c_string (arc_name);
  vec_terminate_c_string (feature_name);

  vnet_feature_registration_t *reg =
    vnet_get_feature_reg ((const char *) arc_name,
			  (const char *) feature_name);
  if (reg == 0)
    rv = VNET_API_ERROR_INVALID_VALUE;
  else
    {
      u32 sw_if_index = ntohl (mp->sw_if_index);
      clib_error_t *error = 0;

      if (reg->enable_disable_cb)
	error = reg->enable_disable_cb (sw_if_index, mp->enable);
      if (!error)
	vnet_feature_enable_disable ((const char *) arc_name,
				     (const char *) feature_name,
				     sw_if_index, mp->enable, 0, 0);
      else
	{
	  clib_error_report (error);
	  rv = VNET_API_ERROR_CANNOT_ENABLE_DISABLE_FEATURE;
	}
    }

  vec_free (feature_name);
  vec_free (arc_name);

  BAD_SW_IF_INDEX_LABEL;

  REPLY_MACRO (VL_API_FEATURE_ENABLE_DISABLE_REPLY);
}

#include <vnet/feature/feature.api.c>

static clib_error_t *
feature_api_hookup (vlib_main_t * vm)
{
  /*
   * Set up the (msg_name, crc, message-id) table
   */
  msg_id_base = setup_message_id_table ();

  return 0;
}

VLIB_API_INIT_FUNCTION (feature_api_hookup);

/*
 * fd.io coding-style-patch-verification: ON
 *
 * Local Variables:
 * eval: (c-set-style "gnu")
 * End:
 */