text: /*
   * Copyright (c) 2011 Gaetano Catalli.
   *
   * 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.
   */
  
  #ifndef RTBSD_H
  #define RTBSD_H 1
  
  #include <net/if.h>
  #include "openvswitch/list.h"
  
  /*
   * A digested version of a message received from a PF_ROUTE socket which
   * indicates that a network device has been created or destroyed or changed.
   */
  struct rtbsd_change {
      /* Copied from struct if_msghdr. */
      int msg_type;             /* e.g. XXX. */
  
      /* Copied from struct if_msghdr. */
      int if_index;              /* Index of network device. */
  
      char if_name[IF_NAMESIZE];         /* Name of network device. */
      int master_ifindex;         /* Ifindex of datapath master (0 if none). */
  };
  
  /*
   * Function called to report that a netdev has changed.  'change' describes the
   * specific change.  It may be null if the buffer of change information
   * overflowed, in which case the function must assume that every device may
   * have changed.  'aux' is as specified in the call to
   * rtbsd_notifier_register().
   */
  typedef void rtbsd_notify_func(const struct rtbsd_change *, void *aux);
  
  struct rtbsd_notifier {
      struct ovs_list node;
      rtbsd_notify_func *cb;
      void *aux;
  };
  
  int rtbsd_notifier_register(struct rtbsd_notifier *,
                                  rtbsd_notify_func *, void *aux);
  void rtbsd_notifier_unregister(struct rtbsd_notifier *);
  void rtbsd_notifier_run(void);
  void rtbsd_notifier_wait(void);
  
  #endif /* rtbsd.h */
  