#ifndef _NET_EVENT_H
  #define _NET_EVENT_H
  
  /*
   *	Generic netevent notifiers
   *
   *	Authors:
   *      Tom Tucker              <tom@opengridcomputing.com>
   *      Steve Wise              <swise@opengridcomputing.com>
   *
   * 	Changes:
   */
  
  struct dst_entry;
  struct neighbour;
  
  struct netevent_redirect {
  	struct dst_entry *old;
  	struct dst_entry *new;
  	struct neighbour *neigh;
  	const void *daddr;
  };
  
  enum netevent_notif_type {
  	NETEVENT_NEIGH_UPDATE = 1, /* arg is struct neighbour ptr */
  	NETEVENT_REDIRECT,	   /* arg is struct netevent_redirect ptr */
  };
  
  int register_netevent_notifier(struct notifier_block *nb);
  int unregister_netevent_notifier(struct notifier_block *nb);
  int call_netevent_notifiers(unsigned long val, void *v);
  
  #endif