1 /* $KAME: rtadvd.h,v 1.16 2001/04/10 15:08:31 suz Exp $ */
4 * Copyright (C) 1998 WIDE Project.
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8 * modification, are permitted provided that the following conditions
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19 * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
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25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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31 * $FreeBSD: src/usr.sbin/rtadvd/rtadvd.h,v 1.1.2.3 2002/06/29 18:59:53 ume Exp $
34 #define ALLNODES "ff02::1"
35 #define ALLROUTERS_LINK "ff02::2"
36 #define ALLROUTERS_SITE "ff05::2"
40 /* protocol constants and default values */
41 #define DEF_MAXRTRADVINTERVAL 600
42 #define DEF_ADVLINKMTU 0
43 #define DEF_ADVREACHABLETIME 0
44 #define DEF_ADVRETRANSTIMER 0
45 #define DEF_ADVCURHOPLIMIT 64
46 #define DEF_ADVVALIDLIFETIME 2592000
47 #define DEF_ADVPREFERREDLIFETIME 604800
49 /*XXX int-to-double comparison for INTERVAL items */
54 #define MAXROUTERLIFETIME 9000
55 #define MIN_MAXINTERVAL (mobileip6 ? 1.5 : 4.0)
56 #define MAX_MAXINTERVAL 1800
57 #define MIN_MININTERVAL (mobileip6 ? 0.5 : 3)
58 #define MAXREACHABLETIME 3600000
64 #define MAX_INITIAL_RTR_ADVERT_INTERVAL 16
65 #define MAX_INITIAL_RTR_ADVERTISEMENTS 3
66 #define MAX_FINAL_RTR_ADVERTISEMENTS 3
67 #define MIN_DELAY_BETWEEN_RAS 3
68 #define MAX_RA_DELAY_TIME 500000 /* usec */
70 #define PREFIX_FROM_KERNEL 1
71 #define PREFIX_FROM_CONFIG 2
72 #define PREFIX_FROM_DYNAMIC 3
75 struct prefix *next; /* forward link */
76 struct prefix *prev; /* previous link */
78 struct rainfo *rainfo; /* back pointer to the interface */
80 struct rtadvd_timer *timer; /* expiration timer. used when a prefix
81 * derived from the kernel is deleted.
84 u_int32_t validlifetime; /* AdvValidLifetime */
85 long vltimeexpire; /* expiration of vltime; decrement case only */
86 u_int32_t preflifetime; /* AdvPreferredLifetime */
87 long pltimeexpire; /* expiration of pltime; decrement case only */
88 u_int onlinkflg; /* bool: AdvOnLinkFlag */
89 u_int autoconfflg; /* bool: AdvAutonomousFlag */
91 u_int routeraddr; /* bool: RouterAddress */
94 int origin; /* from kernel or cofig */
95 struct in6_addr prefix;
99 struct rtinfo *prev; /* previous link */
100 struct rtinfo *next; /* forward link */
102 u_int32_t ltime; /* route lifetime */
103 u_int rtpref; /* router preference */
105 struct in6_addr prefix;
109 struct soliciter *next;
110 struct sockaddr_in6 addr;
114 /* pointer for list */
117 /* timer related parameters */
118 struct rtadvd_timer *timer;
119 int initcounter; /* counter for the first few advertisements */
120 struct timeval lastsent; /* timestamp when the latest RA was sent */
121 int waiting; /* number of RS waiting for RA */
123 /* interface information */
125 int advlinkopt; /* bool: whether include link-layer addr opt */
126 struct sockaddr_dl *sdl;
128 int phymtu; /* mtu of the physical interface */
130 /* Router configuration variables */
131 u_short lifetime; /* AdvDefaultLifetime */
132 u_int maxinterval; /* MaxRtrAdvInterval */
133 u_int mininterval; /* MinRtrAdvInterval */
134 int managedflg; /* AdvManagedFlag */
135 int otherflg; /* AdvOtherConfigFlag */
137 int haflg; /* HAFlag */
139 int rtpref; /* router preference */
140 u_int32_t linkmtu; /* AdvLinkMTU */
141 u_int32_t reachabletime; /* AdvReachableTime */
142 u_int32_t retranstimer; /* AdvRetransTimer */
143 u_int hoplimit; /* AdvCurHopLimit */
144 struct prefix prefix; /* AdvPrefixList(link head) */
145 int pfxs; /* number of prefixes */
146 long clockskew; /* used for consisitency check of lifetimes */
149 u_short hapref; /* Home Agent Preference */
150 u_short hatime; /* Home Agent Lifetime */
152 struct rtinfo route; /* route information option (link head) */
153 int routes; /* number of route information options */
155 /* actual RA packet data and its length */
160 u_quad_t raoutput; /* number of RAs sent */
161 u_quad_t rainput; /* number of RAs received */
162 u_quad_t rainconsistent; /* number of RAs inconsistent with ours */
163 u_quad_t rsinput; /* number of RSs received */
165 /* info about soliciter */
166 struct soliciter *soliciter; /* recent solication source */
169 struct rtadvd_timer *ra_timeout __P((void *));
170 void ra_timer_update __P((void *, struct timeval *));
172 int prefix_match __P((struct in6_addr *, int, struct in6_addr *, int));
173 struct rainfo *if_indextorainfo __P((int));
174 struct prefix *find_prefix __P((struct rainfo *, struct in6_addr *, int));
176 extern struct in6_addr in6a_site_allrouters;
178 extern int mobileip6;