1/*	$NetBSD: route.h,v 1.76 2010/11/12 16:30:26 roy Exp $	*/
2
3/*
4 * Copyright (c) 1980, 1986, 1993
5 *	The Regents of the University of California.  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 University 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 REGENTS 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 REGENTS 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 *
31 *	@(#)route.h	8.5 (Berkeley) 2/8/95
32 */
33
34#ifndef _COMPAT_NET_ROUTE_H_
35#define _COMPAT_NET_ROUTE_H_
36
37#include <sys/queue.h>
38#include <sys/socket.h>
39#include <sys/types.h>
40#include <net/if.h>
41
42#if !(defined(_KERNEL) || defined(_STANDALONE))
43#include <stdbool.h>
44#endif
45
46/*
47 * These numbers are used by reliable protocols for determining
48 * retransmission behavior and are included in the routing structure.
49 */
50struct rt_metrics50 {
51	u_long	rmx_locks;	/* Kernel must leave these values alone */
52	u_long	rmx_mtu;	/* MTU for this path */
53	u_long	rmx_hopcount;	/* max hops expected */
54	u_long	rmx_expire;	/* lifetime for route, e.g. redirect */
55	u_long	rmx_recvpipe;	/* inbound delay-bandwidth product */
56	u_long	rmx_sendpipe;	/* outbound delay-bandwidth product */
57	u_long	rmx_ssthresh;	/* outbound gateway buffer limit */
58	u_long	rmx_rtt;	/* estimated round trip time */
59	u_long	rmx_rttvar;	/* estimated rtt variance */
60	u_long	rmx_pksent;	/* packets sent using this route */
61};
62
63/*
64 * Structures for routing messages.
65 */
66struct rt_msghdr50 {
67	u_short	rtm_msglen;	/* to skip over non-understood messages */
68	u_char	rtm_version;	/* future binary compatibility */
69	u_char	rtm_type;	/* message type */
70	u_short	rtm_index;	/* index for associated ifp */
71	int	rtm_flags;	/* flags, incl. kern & message, e.g. DONE */
72	int	rtm_addrs;	/* bitmask identifying sockaddrs in msg */
73	pid_t	rtm_pid;	/* identify sender */
74	int	rtm_seq;	/* for sender to identify action */
75	int	rtm_errno;	/* why failed */
76	int	rtm_use;	/* from rtentry */
77	u_long	rtm_inits;	/* which metrics we are initializing */
78	struct	rt_metrics50 rtm_rmx; /* metrics themselves */
79};
80
81#ifdef _KERNEL
82extern struct route_info compat_50_route_info;
83void	compat_50_route_enqueue(struct mbuf *, int);
84void	compat_50_rt_ifannouncemsg(struct ifnet *, int);
85void	compat_50_rt_ieee80211msg(struct ifnet *, int, void *, size_t);
86void	compat_50_rt_ifmsg(struct ifnet *);
87void	compat_50_rt_missmsg(int, const struct rt_addrinfo *, int, int);
88struct mbuf *
89	compat_50_rt_msg1(int, struct rt_addrinfo *, void *, int);
90void	compat_50_rt_newaddrmsg(int, struct ifaddr *, int, struct rtentry *);
91#endif
92
93#define RTM_OVERSION	3	/* Up the ante and ignore older versions */
94
95#define RT_OROUNDUP(a)		RT_ROUNDUP2((a), sizeof(long))
96#define RT_OADVANCE(x, n)	(x += RT_OROUNDUP((n)->sa_len))
97
98#endif /* !_COMPAT_NET_ROUTE_H_ */
99