1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License, Version 1.0 only 6 * (the "License"). You may not use this file except in compliance 7 * with the License. 8 * 9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10 * or http://www.opensolaris.org/os/licensing. 11 * See the License for the specific language governing permissions 12 * and limitations under the License. 13 * 14 * When distributing Covered Code, include this CDDL HEADER in each 15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16 * If applicable, add the following below this CDDL HEADER, with the 17 * fields enclosed by brackets "[]" replaced with your own identifying 18 * information: Portions Copyright [yyyy] [name of copyright owner] 19 * 20 * CDDL HEADER END 21 */ 22 /* 23 * Copyright 1999 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 27 /* Copyright (c) 1983, 1984, 1985, 1986, 1987, 1988, 1989 AT&T */ 28 /* All Rights Reserved */ 29 30 /* 31 * Portions of this source code were derived from Berkeley 4.3 BSD 32 * under license from the Regents of the University of California. 33 */ 34 35 #pragma ident "%Z%%M% %I% %E% SMI" 36 37 /* 38 * Routing table management daemon. 39 */ 40 41 /* 42 * Routing table structure; differs a bit from kernel tables. 43 */ 44 struct rthash { 45 struct rt_entry *rt_forw; 46 struct rt_entry *rt_back; 47 }; 48 49 struct rt_entry { 50 struct rt_entry *rt_forw; 51 struct rt_entry *rt_back; 52 uint_t rt_hash; /* for net or host */ 53 struct in6_addr rt_dst; /* match value */ 54 struct in6_addr rt_router; /* who to forward to */ 55 int rt_prefix_length; /* bits in prefix */ 56 struct interface *rt_ifp; /* interface to take */ 57 uint_t rt_flags; /* kernel flags */ 58 uint_t rt_state; /* see below */ 59 int rt_timer; /* for invalidation */ 60 int rt_metric; /* cost of route including the if */ 61 int rt_tag; /* route tag attribute */ 62 }; 63 64 #define ROUTEHASHSIZ 32 /* must be a power of 2 */ 65 #define ROUTEHASHMASK (ROUTEHASHSIZ - 1) 66 67 /* 68 * "State" of routing table entry. 69 */ 70 #define RTS_CHANGED 0x1 /* route has been altered recently */ 71 #define RTS_INTERFACE 0x2 /* route is for network interface */ 72 #define RTS_PRIVATE 0x4 /* route is private, do not advertise */ 73 74 /* 75 * XXX This is defined in <inet/ip.h> (but should be defined in <netinet/ip6.h> 76 * for completeness). 77 */ 78 #define IPV6_ABITS 128 /* Number of bits in an IPv6 address */ 79 80 extern struct rthash *net_hashes[IPV6_ABITS + 1]; 81 82 extern void rtadd(struct in6_addr *, struct in6_addr *, int, int, int, 83 boolean_t, struct interface *); 84 extern void rtchange(struct rt_entry *, struct in6_addr *, short, 85 struct interface *); 86 extern void rtchangeall(void); 87 extern void rtcreate_prefix(struct in6_addr *, struct in6_addr *, int); 88 extern void rtdelete(struct rt_entry *); 89 extern void rtdown(struct rt_entry *); 90 extern void rtdump(void); 91 extern struct rt_entry *rtlookup(struct in6_addr *, int); 92 extern void rtpurgeif(struct interface *); 93