mirror of
https://git.FreeBSD.org/src.git
synced 2024-12-15 10:17:20 +00:00
fc35a81b09
- deprecate routes#N, as it is hard to keep consistency with rtprefixN. accept any number of "rtprefix", "rtrefix0", ..., "rtprefix99". - deprecate "addrs#N", as it is difficult for users to keep consistency with "addrN". accept 100 prefix info in maximum - like "addr", "addr0" ... "addr99". WARNS=2 clean on netbsd. old configuration file should work just fine. behavior change: previously, we rejected "addrN" if there's "addr", and we rejected "addr" if there is "addrN". now we accept both without problem. - when an advertised prefix configured from the kernel has been added or invalidated, notice the change in a short delay. - when invalidating a prefix, do not bark even if there is inconsistency about prefix lifetimes. - wrap more specific route info code into ROUTEINFO. Obtained from: KAME MFC after: 1 week
162 lines
5.4 KiB
C
162 lines
5.4 KiB
C
/* $FreeBSD$ */
|
|
/* $KAME: rtadvd.h,v 1.26 2003/08/05 12:34:23 itojun Exp $ */
|
|
|
|
/*
|
|
* Copyright (C) 1998 WIDE Project.
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
* 3. Neither the name of the project nor the names of its contributors
|
|
* may be used to endorse or promote products derived from this software
|
|
* without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*/
|
|
|
|
#define ALLNODES "ff02::1"
|
|
#define ALLROUTERS_LINK "ff02::2"
|
|
#define ALLROUTERS_SITE "ff05::2"
|
|
#define ANY "::"
|
|
#define RTSOLLEN 8
|
|
|
|
/* protocol constants and default values */
|
|
#define DEF_MAXRTRADVINTERVAL 600
|
|
#define DEF_ADVLINKMTU 0
|
|
#define DEF_ADVREACHABLETIME 0
|
|
#define DEF_ADVRETRANSTIMER 0
|
|
#define DEF_ADVCURHOPLIMIT 64
|
|
#define DEF_ADVVALIDLIFETIME 2592000
|
|
#define DEF_ADVPREFERREDLIFETIME 604800
|
|
|
|
#define MAXROUTERLIFETIME 9000
|
|
#define MIN_MAXINTERVAL 4
|
|
#define MAX_MAXINTERVAL 1800
|
|
#define MIN_MININTERVAL 3
|
|
#define MAXREACHABLETIME 3600000
|
|
|
|
#define MAX_INITIAL_RTR_ADVERT_INTERVAL 16
|
|
#define MAX_INITIAL_RTR_ADVERTISEMENTS 3
|
|
#define MAX_FINAL_RTR_ADVERTISEMENTS 3
|
|
#define MIN_DELAY_BETWEEN_RAS 3
|
|
#define MAX_RA_DELAY_TIME 500000 /* usec */
|
|
|
|
#define PREFIX_FROM_KERNEL 1
|
|
#define PREFIX_FROM_CONFIG 2
|
|
#define PREFIX_FROM_DYNAMIC 3
|
|
|
|
struct prefix {
|
|
struct prefix *next; /* forward link */
|
|
struct prefix *prev; /* previous link */
|
|
|
|
struct rainfo *rainfo; /* back pointer to the interface */
|
|
|
|
struct rtadvd_timer *timer; /* expiration timer. used when a prefix
|
|
* derived from the kernel is deleted.
|
|
*/
|
|
|
|
u_int32_t validlifetime; /* AdvValidLifetime */
|
|
long vltimeexpire; /* expiration of vltime; decrement case only */
|
|
u_int32_t preflifetime; /* AdvPreferredLifetime */
|
|
long pltimeexpire; /* expiration of pltime; decrement case only */
|
|
u_int onlinkflg; /* bool: AdvOnLinkFlag */
|
|
u_int autoconfflg; /* bool: AdvAutonomousFlag */
|
|
int prefixlen;
|
|
int origin; /* from kernel or config */
|
|
struct in6_addr prefix;
|
|
};
|
|
|
|
#ifdef ROUTEINFO
|
|
struct rtinfo {
|
|
struct rtinfo *prev; /* previous link */
|
|
struct rtinfo *next; /* forward link */
|
|
|
|
u_int32_t ltime; /* route lifetime */
|
|
u_int rtpref; /* route preference */
|
|
int prefixlen;
|
|
struct in6_addr prefix;
|
|
};
|
|
#endif
|
|
|
|
struct soliciter {
|
|
struct soliciter *next;
|
|
struct sockaddr_in6 addr;
|
|
};
|
|
|
|
struct rainfo {
|
|
/* pointer for list */
|
|
struct rainfo *next;
|
|
|
|
/* timer related parameters */
|
|
struct rtadvd_timer *timer;
|
|
int initcounter; /* counter for the first few advertisements */
|
|
struct timeval lastsent; /* timestamp when the latest RA was sent */
|
|
int waiting; /* number of RS waiting for RA */
|
|
|
|
/* interface information */
|
|
int ifindex;
|
|
int advlinkopt; /* bool: whether include link-layer addr opt */
|
|
struct sockaddr_dl *sdl;
|
|
char ifname[16];
|
|
int phymtu; /* mtu of the physical interface */
|
|
|
|
/* Router configuration variables */
|
|
u_short lifetime; /* AdvDefaultLifetime */
|
|
u_int maxinterval; /* MaxRtrAdvInterval */
|
|
u_int mininterval; /* MinRtrAdvInterval */
|
|
int managedflg; /* AdvManagedFlag */
|
|
int otherflg; /* AdvOtherConfigFlag */
|
|
|
|
int rtpref; /* router preference */
|
|
u_int32_t linkmtu; /* AdvLinkMTU */
|
|
u_int32_t reachabletime; /* AdvReachableTime */
|
|
u_int32_t retranstimer; /* AdvRetransTimer */
|
|
u_int hoplimit; /* AdvCurHopLimit */
|
|
struct prefix prefix; /* AdvPrefixList(link head) */
|
|
int pfxs; /* number of prefixes */
|
|
long clockskew; /* used for consisitency check of lifetimes */
|
|
|
|
#ifdef ROUTEINFO
|
|
struct rtinfo route; /* route information option (link head) */
|
|
int routes; /* number of route information options */
|
|
#endif
|
|
|
|
/* actual RA packet data and its length */
|
|
size_t ra_datalen;
|
|
u_char *ra_data;
|
|
|
|
/* statistics */
|
|
u_quad_t raoutput; /* number of RAs sent */
|
|
u_quad_t rainput; /* number of RAs received */
|
|
u_quad_t rainconsistent; /* number of RAs inconsistent with ours */
|
|
u_quad_t rsinput; /* number of RSs received */
|
|
|
|
/* info about soliciter */
|
|
struct soliciter *soliciter; /* recent solication source */
|
|
};
|
|
|
|
struct rtadvd_timer *ra_timeout __P((void *));
|
|
void ra_timer_update __P((void *, struct timeval *));
|
|
|
|
int prefix_match __P((struct in6_addr *, int, struct in6_addr *, int));
|
|
struct rainfo *if_indextorainfo __P((int));
|
|
struct prefix *find_prefix __P((struct rainfo *, struct in6_addr *, int));
|
|
|
|
extern struct in6_addr in6a_site_allrouters;
|