sys/net/radix_mpath.h

   1 /*      $KAME: radix_mpath.h,v 1.10 2004/11/06 15:44:28 itojun Exp $    */
   2
   3 /*
   4  * Copyright (C) 2001 WIDE Project.
   5  * All rights reserved.
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted provided that the following conditions
   9  * are met:
  10  * 1. Redistributions of source code must retain the above copyright
  11  *    notice, this list of conditions and the following disclaimer.
  12  * 2. Redistributions in binary form must reproduce the above copyright
  13  *    notice, this list of conditions and the following disclaimer in the
  14  *    documentation and/or other materials provided with the distribution.
  15  * 3. Neither the name of the project nor the names of its contributors
  16  *    may be used to endorse or promote products derived from this software
  17  *    without specific prior written permission.
  18  *
  19  * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
  20  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  21  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  22  * ARE DISCLAIMED.  IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
  23  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  24  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  25  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  26  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  27  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  28  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  29  * SUCH DAMAGE.
  30  * THE AUTHORS DO NOT GUARANTEE THAT THIS SOFTWARE DOES NOT INFRINGE
  31  * ANY OTHERS' INTELLECTUAL PROPERTIES. IN NO EVENT SHALL THE AUTHORS
  32  * BE LIABLE FOR ANY INFRINGEMENT OF ANY OTHERS' INTELLECTUAL
  33  * PROPERTIES.
  34  */
  35 /* $FreeBSD$ */
  36
  37 #ifndef _NET_RADIX_MPATH_H_
  38 #define _NET_RADIX_MPATH_H_
  39
  40 #ifdef _KERNEL
  41 /*
  42  * Radix tree API with multipath support
  43  */
  44 struct route;
  45 struct rtentry;
  46 struct sockaddr;
  47 struct rib_head;
  48 int     rt_mpath_capable(struct rib_head *);
  49 int     rn_mpath_capable(struct radix_head *);
  50 struct radix_node *rn_mpath_next(struct radix_node *);
  51 u_int32_t rn_mpath_count(struct radix_node *);
  52 struct rtentry *rt_mpath_matchgate(struct rtentry *, struct sockaddr *);
  53 int rt_mpath_conflict(struct rib_head *, struct rtentry *,
  54     struct sockaddr *);
  55 void rtalloc_mpath_fib(struct route *, u_int32_t, u_int);
  56 struct rtentry *rt_mpath_select(struct rtentry *, uint32_t);
  57 int rt_mpath_deldup(struct rtentry *, struct rtentry *);
  58 int     rn4_mpath_inithead(void **, int);
  59 int     rn6_mpath_inithead(void **, int);
  60
  61 #endif
  62
  63 #endif /* _NET_RADIX_MPATH_H_ */