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Revision 1.14, Mon Dec 26 19:01:47 2005 UTC (14 years, 5 months ago) by perry
Branch: MAIN
CVS Tags: yamt-pf42-baseX, yamt-pf42-base4, yamt-pf42-base3, yamt-pf42-base2, yamt-pf42-base, yamt-pf42, yamt-pagecache-tag8, yamt-pagecache-base9, yamt-pagecache-base8, yamt-pagecache-base7, yamt-pagecache-base6, yamt-pagecache-base5, yamt-pagecache-base4, yamt-pagecache-base3, yamt-pagecache-base2, yamt-pagecache-base, yamt-pagecache, wrstuden-revivesa-base-3, wrstuden-revivesa-base-2, wrstuden-revivesa-base-1, wrstuden-revivesa-base, wrstuden-revivesa, wrstuden-fixsa-newbase, wrstuden-fixsa-base-1, wrstuden-fixsa-base, wrstuden-fixsa, uebayasi-xip-base7, uebayasi-xip-base6, uebayasi-xip-base5, uebayasi-xip-base4, uebayasi-xip-base3, uebayasi-xip-base2, uebayasi-xip-base1, uebayasi-xip-base, uebayasi-xip, tls-maxphys-base, tls-maxphys, tls-earlyentropy-base, tls-earlyentropy, simonb-wapbl-nbase, simonb-wapbl-base, simonb-wapbl, riastradh-xf86-video-intel-2-7-1-pre-2-21-15, riastradh-drm2-base3, riastradh-drm2-base2, riastradh-drm2-base1, riastradh-drm2-base, riastradh-drm2, netbsd-7-nhusb-base-20170116, netbsd-7-nhusb-base, netbsd-7-nhusb, netbsd-7-base, netbsd-7-2-RELEASE, netbsd-7-1-RELEASE, netbsd-7-1-RC2, netbsd-7-1-RC1, netbsd-7-1-2-RELEASE, netbsd-7-1-1-RELEASE, netbsd-7-1, netbsd-7-0-RELEASE, netbsd-7-0-RC3, netbsd-7-0-RC2, netbsd-7-0-RC1, netbsd-7-0-2-RELEASE, netbsd-7-0-1-RELEASE, netbsd-7-0, netbsd-7, netbsd-6-base, netbsd-6-1-RELEASE, netbsd-6-1-RC4, netbsd-6-1-RC3, netbsd-6-1-RC2, netbsd-6-1-RC1, netbsd-6-1-5-RELEASE, netbsd-6-1-4-RELEASE, netbsd-6-1-3-RELEASE, netbsd-6-1-2-RELEASE, netbsd-6-1-1-RELEASE, netbsd-6-1, netbsd-6-0-RELEASE, netbsd-6-0-RC2, netbsd-6-0-RC1, netbsd-6-0-6-RELEASE, netbsd-6-0-5-RELEASE, netbsd-6-0-4-RELEASE, netbsd-6-0-3-RELEASE, netbsd-6-0-2-RELEASE, netbsd-6-0-1-RELEASE, netbsd-6-0, netbsd-6, netbsd-5-base, netbsd-5-2-RELEASE, netbsd-5-2-RC1, netbsd-5-2-3-RELEASE, netbsd-5-2-2-RELEASE, netbsd-5-2-1-RELEASE, netbsd-5-2, netbsd-5-1-RELEASE, netbsd-5-1-RC4, netbsd-5-1-RC3, netbsd-5-1-RC2, netbsd-5-1-RC1, netbsd-5-1-5-RELEASE, netbsd-5-1-4-RELEASE, netbsd-5-1-3-RELEASE, netbsd-5-1-2-RELEASE, netbsd-5-1-1-RELEASE, netbsd-5-1, netbsd-5-0-RELEASE, netbsd-5-0-RC4, netbsd-5-0-RC3, netbsd-5-0-RC2, netbsd-5-0-RC1, netbsd-5-0-2-RELEASE, netbsd-5-0-1-RELEASE, netbsd-5-0, netbsd-5, netbsd-4-base, netbsd-4-0-RELEASE, netbsd-4-0-RC5, netbsd-4-0-RC4, netbsd-4-0-RC3, netbsd-4-0-RC2, netbsd-4-0-RC1, netbsd-4-0-1-RELEASE, netbsd-4-0, netbsd-4, mjf-devfs2-base, mjf-devfs2, matt-premerge-20091211, matt-nb6-plus-nbase, matt-nb6-plus-base, matt-nb6-plus, matt-nb5-pq3-base, matt-nb5-pq3, matt-nb5-mips64-u2-k2-k4-k7-k8-k9, matt-nb5-mips64-u1-k1-k5, matt-nb5-mips64-premerge-20101231, matt-nb5-mips64-premerge-20091211, matt-nb5-mips64-k15, matt-nb5-mips64, matt-nb4-mips64-k7-u2a-k9b, matt-mips64-premerge-20101231, matt-mips64-base2, matt-mips64-base, matt-mips64, matt-armv6-prevmlocking, matt-armv6-nbase, matt-armv6-base, matt-armv6, keiichi-mipv6-base, keiichi-mipv6, jym-xensuspend-nbase, jym-xensuspend-base, jym-xensuspend, hpcarm-cleanup-nbase, hpcarm-cleanup-base, hpcarm-cleanup, cube-autoconf-base, cube-autoconf, christos-time_t-nbase, christos-time_t-base, christos-time_t, cherry-xenmp-base, cherry-xenmp, bouyer-quota2-nbase, bouyer-quota2-base, bouyer-quota2, agc-symver-base, agc-symver, abandoned-netbsd-4-base, abandoned-netbsd-4
Changes since 1.13: +22 -22 lines

u_intN_t -> uintN_t

/*	$NetBSD: routed.h,v 1.14 2005/12/26 19:01:47 perry Exp $	*/

/*-
 * Copyright (c) 1983, 1989, 1993
 *	The Regents of the University of California.  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 University 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 REGENTS 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 REGENTS 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.
 *
 *	@(#)routed.h	8.1 (Berkeley) 6/2/93
 */

#ifndef _PROTOCOLS_ROUTED_H_
#define	_PROTOCOLS_ROUTED_H_
#ifdef __cplusplus
extern "C" {
#endif

/*
 * Routing Information Protocol
 *
 * Derived from Xerox NS Routing Information Protocol
 * by changing 32-bit net numbers to sockaddr's and
 * padding stuff to 32-bit boundaries.
 */

#define RIP_VERSION_0	0
#define	RIP_VERSION_1	1
#define	RIP_VERSION_2	2

#define	RIPv1		RIP_VERSION_1
#define	RIPv2		RIP_VERSION_2
#ifndef RIPVERSION
#define	RIPVERSION	RIPv1
#endif

#define RIP_PORT	520

#if RIPVERSION == 1
/* We include the V2 fields to get the right size */
struct netinfo {
	uint16_t   rip_family;
	uint16_t   rip_tag;
	uint32_t   rip_dst;		/* destination net/host */
	uint32_t   rip_dst_mask;	/* destination mask (V2 only) */
	uint32_t   rip_router;		/* next host (V2 only) */
	uint32_t   rip_metric;		/* cost of route */
};
#else
struct netinfo {
	uint16_t   n_family;
#define	    RIP_AF_INET	    htons(AF_INET)
#define	    RIP_AF_UNSPEC   0
#define	    RIP_AF_AUTH	    0xffff
	uint16_t   n_tag;		/* optional in RIPv2 */
	uint32_t   n_dst;		/* destination net or host */
#define	    RIP_DEFAULT	    0
	uint32_t   n_mask;		/* netmask in RIPv2 */
	uint32_t   n_nhop;		/* optional next hop in RIPv2 */
	uint32_t   n_metric;		/* cost of route */
};
#endif

/* RIPv2 authentication */
struct netauth {
	uint16_t   a_family;		/* always RIP_AF_AUTH */
	uint16_t   a_type;
#define	    RIP_AUTH_NONE   0
#define	    RIP_AUTH_PW	    htons(2)	/* password type */
#define	    RIP_AUTH_MD5    htons(3)	/* Keyed MD5 */
	union {
#define	    RIP_AUTH_PW_LEN 16
	    uint8_t    au_pw[RIP_AUTH_PW_LEN];
	    struct a_md5 {
		int16_t	md5_pkt_len;	/* RIP-II packet length */
		int8_t	md5_keyid;	/* key ID and auth data len */
		int8_t	md5_auth_len;	/* 16 */
		uint32_t md5_seqno;	/* sequence number */
		uint32_t rsvd[2];	/* must be 0 */
#define	    RIP_AUTH_MD5_KEY_LEN   RIP_AUTH_PW_LEN
#define	    RIP_AUTH_MD5_HASH_XTRA (sizeof(struct netauth)-sizeof(struct a_md5))
#define	    RIP_AUTH_MD5_HASH_LEN  (RIP_AUTH_MD5_KEY_LEN+RIP_AUTH_MD5_HASH_XTRA)
	    } a_md5;
	} au;
};

struct rip {
	uint8_t    rip_cmd;		/* request/response */
	uint8_t    rip_vers;		/* protocol version # */
	uint16_t   rip_res1;		/* pad to 32-bit boundary */
	union {				/* variable length... */
	    struct netinfo ru_nets[1];
	    int8_t    ru_tracefile[1];
	    struct netauth ru_auth[1];
	} ripun;
#define	rip_nets	ripun.ru_nets
#define rip_auths	ripun.ru_auth
#define	rip_tracefile	ripun.ru_tracefile
};

/* Packet types.
 */
#define	RIPCMD_REQUEST		1	/* want info */
#define	RIPCMD_RESPONSE		2	/* responding to request */
#define	RIPCMD_TRACEON		3	/* turn tracing on */
#define	RIPCMD_TRACEOFF		4	/* turn it off */

/* Gated extended RIP to include a "poll" command instead of using
 * RIPCMD_REQUEST with (RIP_AF_UNSPEC, RIP_DEFAULT).  RFC 1058 says
 * command 5 is used by Sun Microsystems for its own purposes.
 */
#define RIPCMD_POLL		5

#define	RIPCMD_MAX		6

#ifdef RIPCMDS
const char *ripcmds[RIPCMD_MAX] = {
	"#0", "REQUEST", "RESPONSE", "TRACEON", "TRACEOFF"
};
#endif

#define	HOPCNT_INFINITY		16
#define	MAXPACKETSIZE		512	/* max broadcast size */
#define NETS_LEN ((MAXPACKETSIZE-sizeof(struct rip))	\
		      / sizeof(struct netinfo) +1)

#define INADDR_RIP_GROUP (uint32_t)0xe0000009	/* 224.0.0.9 */


/* Timer values used in managing the routing table.
 *
 * Complete tables are broadcast every SUPPLY_INTERVAL seconds.
 * If changes occur between updates, dynamic updates containing only changes
 * may be sent.  When these are sent, a timer is set for a random value
 * between MIN_WAITTIME and MAX_WAITTIME, and no additional dynamic updates
 * are sent until the timer expires.
 *
 * Every update of a routing entry forces an entry's timer to be reset.
 * After EXPIRE_TIME without updates, the entry is marked invalid,
 * but held onto until GARBAGE_TIME so that others may see it, to
 * "poison" the bad route.
 */
#define	SUPPLY_INTERVAL		30	/* time to supply tables */
#define	MIN_WAITTIME		2	/* min sec until next flash updates */
#define	MAX_WAITTIME		5	/* max sec until flash update */

#define STALE_TIME		90	/* switch to a new gateway */
#define	EXPIRE_TIME		180	/* time to mark entry invalid */
#define	GARBAGE_TIME		240	/* time to garbage collect */

#ifdef __cplusplus
}
#endif
#endif /* !_PROTOCOLS_ROUTED_H_ */