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Diffstat (limited to 'usr.sbin/XNSrouted/protocol.h')
-rw-r--r-- | usr.sbin/XNSrouted/protocol.h | 85 |
1 files changed, 85 insertions, 0 deletions
diff --git a/usr.sbin/XNSrouted/protocol.h b/usr.sbin/XNSrouted/protocol.h new file mode 100644 index 0000000..72b0ddb --- /dev/null +++ b/usr.sbin/XNSrouted/protocol.h @@ -0,0 +1,85 @@ +/* + * 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 */ |