1 /* $FreeBSD$ */ 2 /* $KAME: rtadvd.h,v 1.8 2000/05/16 13:34:14 itojun Exp $ */ 3 4 /* 5 * Copyright (C) 1998 WIDE Project. 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 3. Neither the name of the project nor the names of its contributors 17 * may be used to endorse or promote products derived from this software 18 * without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND 21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23 * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE 24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30 * SUCH DAMAGE. 31 */ 32 33 #define ALLNODES "ff02::1" 34 #define ALLROUTERS "ff02::2" 35 #define ANY "::" 36 #define RTSOLLEN 8 37 38 /* protocol constants and default values */ 39 #define DEF_MAXRTRADVINTERVAL 600 40 #define DEF_ADVLINKMTU 0 41 #define DEF_ADVREACHABLETIME 0 42 #define DEF_ADVRETRANSTIMER 0 43 #define DEF_ADVCURHOPLIMIT 64 44 #define DEF_ADVVALIDLIFETIME 2592000 45 #define DEF_ADVPREFERREDLIFETIME 604800 46 47 /*XXX int-to-double comparison for INTERVAL items */ 48 #ifndef MIP6 49 #define mobileip6 0 50 #endif 51 52 #define MAXROUTERLIFETIME 9000 53 #define MIN_MAXINTERVAL (mobileip6 ? 1.5 : 4.0) 54 #define MAX_MAXINTERVAL 1800 55 #define MIN_MININTERVAL (mobileip6 ? 0.5 : 3) 56 #define MAXREACHABLETIME 3600000 57 58 #ifndef MIP6 59 #undef miobileip6 60 #endif 61 62 #define MAX_INITIAL_RTR_ADVERT_INTERVAL 16 63 #define MAX_INITIAL_RTR_ADVERTISEMENTS 3 64 #define MAX_FINAL_RTR_ADVERTISEMENTS 3 65 #define MIN_DELAY_BETWEEN_RAS 3 66 #define MAX_RA_DELAY_TIME 500000 /* usec */ 67 68 #define PREFIX_FROM_KERNEL 1 69 #define PREFIX_FROM_CONFIG 2 70 #define PREFIX_FROM_DYNAMIC 3 71 72 struct prefix { 73 struct prefix *next; /* forward link */ 74 struct prefix *prev; /* previous link */ 75 76 u_int32_t validlifetime; /* AdvValidLifetime */ 77 u_int32_t preflifetime; /* AdvPreferredLifetime */ 78 u_int onlinkflg; /* bool: AdvOnLinkFlag */ 79 u_int autoconfflg; /* bool: AdvAutonomousFlag */ 80 #ifdef MIP6 81 u_int routeraddr; /* bool: RouterAddress */ 82 #endif 83 int prefixlen; 84 int origin; /* from kernel or cofig */ 85 struct in6_addr prefix; 86 }; 87 88 struct soliciter { 89 struct soliciter *next; 90 struct sockaddr_in6 addr; 91 }; 92 93 struct rainfo { 94 /* pointer for list */ 95 struct rainfo *next; 96 97 /* timer related parameters */ 98 struct rtadvd_timer *timer; 99 int initcounter; /* counter for the first few advertisements */ 100 struct timeval lastsent; /* timestamp when the latest RA was sent */ 101 int waiting; /* number of RS waiting for RA */ 102 103 /* interface information */ 104 int ifindex; 105 int advlinkopt; /* bool: whether include link-layer addr opt */ 106 struct sockaddr_dl *sdl; 107 char ifname[16]; 108 int phymtu; /* mtu of the physical interface */ 109 110 /* Router configuration variables */ 111 u_short lifetime; /* AdvDefaultLifetime */ 112 u_int maxinterval; /* MaxRtrAdvInterval */ 113 u_int mininterval; /* MinRtrAdvInterval */ 114 int managedflg; /* AdvManagedFlag */ 115 int otherflg; /* AdvOtherConfigFlag */ 116 #ifdef MIP6 117 int haflg; /* HAFlag */ 118 #endif 119 u_int32_t linkmtu; /* AdvLinkMTU */ 120 u_int32_t reachabletime; /* AdvReachableTime */ 121 u_int32_t retranstimer; /* AdvRetransTimer */ 122 u_int hoplimit; /* AdvCurHopLimit */ 123 struct prefix prefix; /* AdvPrefixList(link head) */ 124 int pfxs; /* number of prefixes */ 125 126 #ifdef MIP6 127 u_short hapref; /* Home Agent Preference */ 128 u_short hatime; /* Home Agent Lifetime */ 129 #endif 130 131 /* actual RA packet data and its length */ 132 size_t ra_datalen; 133 u_char *ra_data; 134 135 /* statistics */ 136 u_quad_t raoutput; /* number of RAs sent */ 137 u_quad_t rainput; /* number of RAs received */ 138 u_quad_t rainconsistent; /* number of RAs inconsistent with ours */ 139 u_quad_t rsinput; /* number of RSs received */ 140 141 /* info about soliciter */ 142 struct soliciter *soliciter; /* recent solication source */ 143 }; 144 145 void ra_timeout __P((void *)); 146 void ra_timer_update __P((void *, struct timeval *)); 147 148 #ifdef MIP6 149 extern int mobileip6; 150 #endif 151