3219c922a9
Note: The sources for XNSrouted and routed are being imported to usr.sbin instead of sbin.
86 lines
3.1 KiB
C
86 lines
3.1 KiB
C
/*
|
|
* Copyright (c) 1985, 1993
|
|
* The Regents of the University of California. All rights reserved.
|
|
*
|
|
* This file includes significant work done at Cornell University by
|
|
* Bill Nesheim. That work included by permission.
|
|
*
|
|
* 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 acknowledgement:
|
|
* 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.
|
|
*
|
|
* @(#)protocol.h 8.1 (Berkeley) 6/5/93
|
|
*/
|
|
|
|
/*
|
|
* Xerox Routing Information Protocol
|
|
*
|
|
*/
|
|
|
|
struct netinfo {
|
|
union ns_net rip_dst; /* destination net */
|
|
u_short rip_metric; /* cost of route */
|
|
};
|
|
|
|
struct rip {
|
|
u_short rip_cmd; /* request/response */
|
|
struct netinfo rip_nets[1]; /* variable length */
|
|
};
|
|
|
|
/*
|
|
* Packet types.
|
|
*/
|
|
#define RIPCMD_REQUEST 1 /* want info */
|
|
#define RIPCMD_RESPONSE 2 /* responding to request */
|
|
|
|
#define RIPCMD_MAX 3
|
|
#ifdef RIPCMDS
|
|
char *ripcmds[RIPCMD_MAX] =
|
|
{ "#0", "REQUEST", "RESPONSE" };
|
|
#endif
|
|
|
|
#define HOPCNT_INFINITY 16 /* per Xerox NS */
|
|
#define DSTNETS_ALL 0xffffffff /* per Xerox NS */
|
|
#define MAXPACKETSIZE 512 /* max broadcast size */
|
|
|
|
extern union ns_net ns_anynet;
|
|
extern union ns_net ns_zeronet;
|
|
|
|
/*
|
|
* Timer values used in managing the routing table.
|
|
* Every update 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 "be deleted".
|
|
*/
|
|
#define TIMER_RATE 30 /* alarm clocks every 30 seconds */
|
|
|
|
#define SUPPLY_INTERVAL 30 /* time to supply tables */
|
|
|
|
#define EXPIRE_TIME 180 /* time to mark entry invalid */
|
|
#define GARBAGE_TIME 240 /* time to garbage collect */
|