Kernel - Clean up conditionals to make them more readable (no real code chg)
[dragonfly.git] / usr.sbin / IPXrouted / protocol.h
blob68f90fabefe37df3702c595d5a404ea7f417e7cb
1 /*
2 * Copyright (c) 1985, 1993
3 * The Regents of the University of California. All rights reserved.
5 * Copyright (c) 1995 John Hay. All rights reserved.
7 * This file includes significant work done at Cornell University by
8 * Bill Nesheim. That work included by permission.
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.
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.
38 * @(#)protocol.h 8.1 (Berkeley) 6/5/93
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 $
45 * IPX Routing Information Protocol
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 */
55 struct rip {
56 u_short rip_cmd; /* request/response */
57 struct netinfo rip_nets[1]; /* variable length */
61 * Packet types.
63 #define RIPCMD_REQUEST 1 /* want info */
64 #define RIPCMD_RESPONSE 2 /* responding to request */
66 #define RIPCMD_MAX 3
67 #ifdef RIPCMDS
68 char *ripcmds[RIPCMD_MAX] =
69 { "#0", "REQUEST", "RESPONSE" };
70 #endif
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 */
77 extern union ipx_net ipx_anynet;
78 extern union ipx_net ipx_zeronet;
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".
87 #define TIMER_RATE 30 /* alarm clocks every 30 seconds */
89 #define SUPPLY_INTERVAL 30 /* time to supply tables */
90 #define RIP_INTERVAL 60 /* time to supply rip tables */
92 #define EXPIRE_TIME 180 /* time to mark entry invalid */
93 #define GARBAGE_TIME 240 /* time to garbage collect */