usr.sbin/IPXrouted/protocol.h

   1 /*
   2  * Copyright (c) 1985, 1993
   3  *      The Regents of the University of California.  All rights reserved.
   4  *
   5  * Copyright (c) 1995 John Hay.  All rights reserved.
   6  *
   7  * This file includes significant work done at Cornell University by
   8  * Bill Nesheim.  That work included by permission.
   9  *
  10  * Redistribution and use in source and binary forms, with or without
  11  * modification, are permitted provided that the following conditions
  12  * are met:
  13  * 1. Redistributions of source code must retain the above copyright
  14  *    notice, this list of conditions and the following disclaimer.
  15  * 2. Redistributions in binary form must reproduce the above copyright
  16  *    notice, this list of conditions and the following disclaimer in the
  17  *    documentation and/or other materials provided with the distribution.
  18  * 3. All advertising materials mentioning features or use of this software
  19  *    must display the following acknowledgement:
  20  *      This product includes software developed by the University of
  21  *      California, Berkeley and its contributors.
  22  * 4. Neither the name of the University nor the names of its contributors
  23  *    may be used to endorse or promote products derived from this software
  24  *    without specific prior written permission.
  25  *
  26  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  27  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  28  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  29  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  30  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  31  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  32  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  33  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  34  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  35  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  36  * SUCH DAMAGE.
  37  *
  38  *      @(#)protocol.h  8.1 (Berkeley) 6/5/93
  39  *
  40  * $FreeBSD: src/usr.sbin/IPXrouted/protocol.h,v 1.5 1999/08/28 01:15:03 peter Exp $
  41  * $DragonFly: src/usr.sbin/IPXrouted/protocol.h,v 1.2 2003/06/17 04:29:52 dillon Exp $
  42  */
  43
  44 /*
  45  * IPX Routing Information Protocol
  46  *
  47  */
  48
  49 struct netinfo {
  50         union ipx_net   rip_dst;                /* destination net */
  51         u_short         rip_metric;             /* cost of route */
  52         u_short         rip_ticks;              /* cost of route */
  53 };
  54
  55 struct rip {
  56         u_short rip_cmd;                /* request/response */
  57         struct netinfo rip_nets[1];     /* variable length */
  58 };
  59
  60 /*
  61  * Packet types.
  62  */
  63 #define RIPCMD_REQUEST          1       /* want info */
  64 #define RIPCMD_RESPONSE         2       /* responding to request */
  65
  66 #define RIPCMD_MAX              3
  67 #ifdef RIPCMDS
  68 char *ripcmds[RIPCMD_MAX] =
  69   { "#0", "REQUEST", "RESPONSE" };
  70 #endif
  71
  72 #define HOPCNT_INFINITY         16              /* per IPX */
  73 #define DSTNETS_ALL             0xffffffff      /* per IPX */
  74 #define MAXRXPACKETSIZE         1500            /* max rx broadcast size */
  75 #define MAXRIPNETS              50              /* max nets in tx packet */
  76
  77 extern union ipx_net ipx_anynet;
  78 extern union ipx_net ipx_zeronet;
  79
  80 /*
  81  * Timer values used in managing the routing table.
  82  * Every update forces an entry's timer to be reset.  After
  83  * EXPIRE_TIME without updates, the entry is marked invalid,
  84  * but held onto until GARBAGE_TIME so that others may
  85  * see it "be deleted".
  86  */
  87 #define TIMER_RATE              30      /* alarm clocks every 30 seconds */
  88
  89 #define SUPPLY_INTERVAL         30      /* time to supply tables */
  90 #define RIP_INTERVAL            60      /* time to supply rip tables */
  91
  92 #define EXPIRE_TIME             180     /* time to mark entry invalid */
  93 #define GARBAGE_TIME            240     /* time to garbage collect */