d21d623f8e
Update <protocols/routed.h> for the MD5 changes requested in bin/35843. Preserve local changes. Education by: obrien, markm, pointy-stick PR: bin/35843 (and doubtless others)
177 lines
6.0 KiB
C
177 lines
6.0 KiB
C
/*-
|
|
* 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. All advertising materials mentioning features or use of this software
|
|
* must display the following acknowledgment:
|
|
* This product includes software developed by the University of
|
|
* California, Berkeley and its contributors.
|
|
* 4. 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
|
|
*
|
|
* $FreeBSD$
|
|
* $Revision: 2.26 $
|
|
*/
|
|
|
|
#ifndef _ROUTED_H_
|
|
#define _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 RIPv1 1
|
|
#define RIPv2 2
|
|
#ifndef RIPVERSION
|
|
#define RIPVERSION RIPv1
|
|
#endif
|
|
|
|
#define RIP_PORT 520
|
|
|
|
#if RIPVERSION == 1
|
|
/* Note that this so called sockaddr has a 2-byte sa_family and no sa_len.
|
|
* It is not a UNIX sockaddr, but the shape of an address as defined
|
|
* in RIPv1. It is still defined to allow old versions of programs
|
|
* such as `gated` to use this file to define RIPv1.
|
|
*/
|
|
struct netinfo {
|
|
struct sockaddr rip_dst; /* destination net/host */
|
|
u_int32_t rip_metric; /* cost of route */
|
|
};
|
|
#else
|
|
struct netinfo {
|
|
u_int16_t n_family;
|
|
#define RIP_AF_INET htons(AF_INET)
|
|
#define RIP_AF_UNSPEC 0
|
|
#define RIP_AF_AUTH 0xffff
|
|
u_int16_t n_tag; /* optional in RIPv2 */
|
|
u_int32_t n_dst; /* destination net or host */
|
|
#define RIP_DEFAULT 0
|
|
u_int32_t n_mask; /* netmask in RIPv2 */
|
|
u_int32_t n_nhop; /* optional next hop in RIPv2 */
|
|
u_int32_t n_metric; /* cost of route */
|
|
};
|
|
#endif
|
|
|
|
/* RIPv2 authentication */
|
|
struct netauth {
|
|
u_int16_t a_family; /* always RIP_AF_AUTH */
|
|
u_int16_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
|
|
u_int8_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 */
|
|
u_int32_t md5_seqno; /* sequence number */
|
|
u_int32_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 {
|
|
u_int8_t rip_cmd; /* request/response */
|
|
u_int8_t rip_vers; /* protocol version # */
|
|
u_int16_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 (u_int32_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 /* !_ROUTED_H_ */
|