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/* $OpenBSD: rip.h,v 1.3 2007/01/23 21:10:10 michele Exp $ */
/*
* Copyright (c) 2006 Michele Marchetto <mydecay@openbeer.it>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
/* RIP protocol definitions */
#ifndef _RIP_H_
#define _RIP_H_
/* misc */
#define RIP_VERSION 2
#define ALL_RIP_ROUTERS "224.0.0.9"
#define RIP_PORT 520
#define MIN_MD_ID 0
#define MAX_MD_ID 255
/* metric */
#define INFINITY 16
#define DEFAULT_COST 1
/* timers */
#define KEEPALIVE 30
#define OFFSET 10
#define FAILED_NBR_TIMEOUT 86400
#define MAX_RIP_ENTRIES 25
/* RIP command */
#define COMMAND_REQUEST 1
#define COMMAND_RESPONSE 2
#define RIP_HDR_LEN sizeof(struct rip_hdr)
#define RIP_ENTRY_LEN sizeof(struct rip_entry)
struct rip_hdr {
u_int8_t command;
u_int8_t version;
u_int16_t dummy;
};
struct rip_entry {
u_int16_t AFI;
u_int16_t route_tag;
u_int32_t address;
u_int32_t mask;
u_int32_t nexthop;
u_int32_t metric;
};
/* auth */
#define AUTH 0xFFFF
#define AUTH_TRLR_HDR_LEN 4
/* auth general struct */
struct rip_auth {
u_int16_t auth_fixed;
u_int16_t auth_type;
};
/* Keyed MD5 auth struct */
struct md5_auth {
u_int16_t auth_offset;
u_int8_t auth_keyid;
u_int8_t auth_length;
u_int32_t auth_seq;
u_int64_t auth_reserved;
};
#endif /* _RIP_H_ */
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