route.h revision 1.3 1 /* $NetBSD: route.h,v 1.3 2019/04/29 11:57:22 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 */
50 struct 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 */
66 struct 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
82 extern struct route_info compat_50_route_info;
83 void compat_50_route_enqueue(struct mbuf *, int);
84 void compat_50_rt_ifannouncemsg(struct ifnet *, int);
85 void compat_50_rt_ieee80211msg(struct ifnet *, int, void *, size_t);
86 void compat_50_rt_ifmsg(struct ifnet *);
87 void compat_50_rt_missmsg(int, const struct rt_addrinfo *, int, int);
88 struct mbuf *
89 compat_50_rt_msg1(int, struct rt_addrinfo *, void *, int);
90 void compat_50_rt_addrmsg_rt(int, struct ifaddr *, int, struct rtentry *);
91 void compat_50_rt_addrmsg(int, struct ifaddr *);
92 void compat_70_rt_newaddrmsg1(int, struct ifaddr *);
93 #endif
94
95 #define RTM_OVERSION 3 /* Up the ante and ignore older versions */
96
97 #define RT_OROUNDUP(a) RT_ROUNDUP2((a), sizeof(long))
98 #define RT_OADVANCE(x, n) (x += RT_OROUNDUP((n)->sa_len))
99
100 #endif /* !_COMPAT_NET_ROUTE_H_ */
101