table.h revision 50479
1148871Scperciva/* 2148871Scperciva * Copyright (c) 1983, 1993 3148871Scperciva * The Regents of the University of California. All rights reserved. 4148871Scperciva * 5148871Scperciva * Copyright (c) 1995 John Hay. All rights reserved. 6148871Scperciva * 7148871Scperciva * Redistribution and use in source and binary forms, with or without 8148871Scperciva * modification, are permitted provided that the following conditions 9148871Scperciva * are met: 10148871Scperciva * 1. Redistributions of source code must retain the above copyright 11148871Scperciva * notice, this list of conditions and the following disclaimer. 12148871Scperciva * 2. Redistributions in binary form must reproduce the above copyright 13148871Scperciva * notice, this list of conditions and the following disclaimer in the 14148871Scperciva * documentation and/or other materials provided with the distribution. 15148871Scperciva * 3. All advertising materials mentioning features or use of this software 16148871Scperciva * must display the following acknowledgement: 17148871Scperciva * This product includes software developed by the University of 18148871Scperciva * California, Berkeley and its contributors. 19148871Scperciva * 4. Neither the name of the University nor the names of its contributors 20148871Scperciva * may be used to endorse or promote products derived from this software 21148871Scperciva * without specific prior written permission. 22148871Scperciva * 23148871Scperciva * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 24148871Scperciva * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 25148871Scperciva * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 26148871Scperciva * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 27148871Scperciva * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 28148871Scperciva * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29148871Scperciva * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30148871Scperciva * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31148871Scperciva * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32148871Scperciva * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33148871Scperciva * SUCH DAMAGE. 34148871Scperciva * 35148871Scperciva * @(#)table.h 5.1 (Berkeley) 6/4/85 (routed/table.h) 36148871Scperciva * 37149027Scperciva * @(#)table.h 8.1 (Berkeley) 6/5/93 38148871Scperciva * 39148871Scperciva * $FreeBSD: head/usr.sbin/IPXrouted/table.h 50479 1999-08-28 01:35:59Z peter $ 40148871Scperciva */ 41148871Scperciva 42148871Scperciva/* 43148871Scperciva * Routing table management daemon. 44148871Scperciva */ 45148871Scperciva 46148871Scperciva/* 47148871Scperciva * Routing table structure; differs a bit from kernel tables. 48148871Scperciva * 49148871Scperciva * Note: the union below must agree in the first 4 members 50148871Scperciva * so the ioctl's will work. 51148871Scperciva */ 52148871Scpercivastruct rthash { 53148871Scperciva struct rt_entry *rt_forw; 54148871Scperciva struct rt_entry *rt_back; 55148871Scperciva}; 56148871Scperciva 57148871Scperciva#ifdef RTM_ADD 58148871Scperciva#define rtentry ortentry 59148871Scperciva#endif 60148871Scperciva 61148871Scpercivastruct rt_entry { 62148871Scperciva struct rt_entry *rt_forw; 63148871Scperciva struct rt_entry *rt_back; 64148871Scperciva union { 65148871Scperciva struct rtentry rtu_rt; 66148871Scperciva struct rtuentry { 67148871Scperciva u_long rtu_hash; 68148871Scperciva struct sockaddr rtu_dst; 69148871Scperciva struct sockaddr rtu_router; 70148871Scperciva short rtu_rtflags; /* used by old rtioctl */ 71148871Scperciva short rtu_wasted; /* XXX routed does it this way. */ 72148871Scperciva int rtu_flags; 73148871Scperciva int rtu_state; 74148871Scperciva int rtu_timer; 75149027Scperciva int rtu_metric; 76148871Scperciva int rtu_ticks; 77148871Scperciva struct interface *rtu_ifp; 78148871Scperciva } rtu_entry; 79148879Scperciva } rt_rtu; 80148871Scperciva struct rt_entry *rt_clone; 81148871Scperciva}; 82148871Scperciva 83148871Scperciva#define rt_rt rt_rtu.rtu_entry /* pass to ioctl */ 84149824Scperciva#define rt_hash rt_rtu.rtu_entry.rtu_hash /* for net or host */ 85148871Scperciva#define rt_dst rt_rtu.rtu_entry.rtu_dst /* match value */ 86148871Scperciva#define rt_router rt_rtu.rtu_entry.rtu_router /* who to forward to */ 87148871Scperciva#define rt_flags rt_rtu.rtu_entry.rtu_flags /* kernel flags */ 88148871Scperciva#define rt_timer rt_rtu.rtu_entry.rtu_timer /* for invalidation */ 89148871Scperciva#define rt_state rt_rtu.rtu_entry.rtu_state /* see below */ 90148871Scperciva#define rt_metric rt_rtu.rtu_entry.rtu_metric /* cost of route */ 91148871Scperciva#define rt_ticks rt_rtu.rtu_entry.rtu_ticks /* time of route */ 92148871Scperciva#define rt_ifp rt_rtu.rtu_entry.rtu_ifp /* interface to take */ 93148871Scperciva 94148871Scperciva#define ROUTEHASHSIZ 128 /* must be a power of 2 */ 95148871Scperciva#define ROUTEHASHMASK (ROUTEHASHSIZ - 1) 96148871Scperciva 97148871Scperciva/* 98148871Scperciva * "State" of routing table entry. 99148871Scperciva */ 100148871Scperciva#define RTS_CHANGED 0x1 /* route has been altered recently */ 101148879Scperciva#define RTS_PASSIVE IFF_PASSIVE /* don't time out route */ 102148871Scperciva#define RTS_INTERFACE IFF_INTERFACE /* route is for network interface */ 103148871Scperciva#define RTS_REMOTE IFF_REMOTE /* route is for ``remote'' entity */ 104148871Scperciva 105148871Scpercivaextern struct rthash nethash[ROUTEHASHSIZ]; 106148871Scpercivastruct rt_entry *rtlookup(struct sockaddr *); 107148871Scpercivastruct rt_entry *rtfind(struct sockaddr *); 108148871Scpercivavoid rtadd(struct sockaddr *, struct sockaddr *, short, short, int); 109148871Scpercivavoid rtadd_clone(struct rt_entry *, struct sockaddr *, struct sockaddr *, 110148871Scperciva short, short, int); 111148871Scpercivavoid rtchange(struct rt_entry *, struct sockaddr *, short, short); 112148871Scpercivavoid rtdelete(struct rt_entry *); 113148871Scpercivaint rtioctl(int, struct rtuentry *); 114148871Scpercivavoid rtinit(void); 115148871Scperciva 116148871Scperciva