1 /* $NetBSD: route.h,v 1.4 2019/04/29 16:12:30 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_src(int, struct ifaddr *, const struct sockaddr *); 92 void compat_50_rt_addrmsg(int, struct ifaddr *); 93 void compat_70_rt_newaddrmsg1(int, struct ifaddr *); 94 #endif 95 96 #define RTM_OVERSION 3 /* Up the ante and ignore older versions */ 97 98 #define RT_OROUNDUP(a) RT_ROUNDUP2((a), sizeof(long)) 99 #define RT_OADVANCE(x, n) (x += RT_OROUNDUP((n)->sa_len)) 100 101 #endif /* !_COMPAT_NET_ROUTE_H_ */ 102