/*	$KAME: radix_mpath.h,v 1.10 2004/11/06 15:44:28 itojun Exp $	*/

/*
 * SPDX-License-Identifier: BSD-3-Clause
 *
 * Copyright (C) 2001 WIDE Project.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. Neither the name of the project nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 * THE AUTHORS DO NOT GUARANTEE THAT THIS SOFTWARE DOES NOT INFRINGE
 * ANY OTHERS' INTELLECTUAL PROPERTIES. IN NO EVENT SHALL THE AUTHORS
 * BE LIABLE FOR ANY INFRINGEMENT OF ANY OTHERS' INTELLECTUAL
 * PROPERTIES.
 */
/* $FreeBSD: releng/12.4/sys/net/radix_mpath.h 326023 2017-11-20 19:43:44Z pfg $ */

#ifndef _NET_RADIX_MPATH_H_
#define	_NET_RADIX_MPATH_H_

#ifdef _KERNEL
/*
 * Radix tree API with multipath support
 */
struct route;
struct rtentry;
struct sockaddr;
struct rib_head;
int	rt_mpath_capable(struct rib_head *);
int	rn_mpath_capable(struct radix_head *);
struct radix_node *rn_mpath_next(struct radix_node *);
u_int32_t rn_mpath_count(struct radix_node *);
struct rtentry *rt_mpath_matchgate(struct rtentry *, struct sockaddr *);
int rt_mpath_conflict(struct rib_head *, struct rtentry *,
    struct sockaddr *);
void rtalloc_mpath_fib(struct route *, u_int32_t, u_int);
struct rtentry *rt_mpath_select(struct rtentry *, uint32_t);
int rt_mpath_deldup(struct rtentry *, struct rtentry *);
int	rn4_mpath_inithead(void **, int);
int	rn6_mpath_inithead(void **, int);

#endif

#endif /* _NET_RADIX_MPATH_H_ */
