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/*
* 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 "ff02::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 */
struct prefix {
struct prefix *next; /* forward link */
struct prefix *prev; /* previous link */
u_int32_t validlifetime; /* AdvValidLifetime */
u_int32_t preflifetime; /* AdvPreferredLifetime */
u_int onlinkflg; /* bool: AdvOnLinkFlag */
u_int autoconfflg; /* bool: AdvAutonomousFlag */
int prefixlen;
struct in6_addr prefix;
};
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 lates 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 */
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 */
/* actual RA packet data and its length */
size_t ra_datalen;
u_char *ra_data;
};
void ra_timeout __P((void *));
void ra_timer_update __P((void *, struct timeval *));
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