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- /* @(#)routed.h 1.9 88/08/19 SMI; from UCB 5.1 6/4/85 */
- /*
- * Copyright (c) 1983 Regents of the University of California.
- * All rights reserved. The Berkeley software License Agreement
- * specifies the terms and conditions for redistribution.
- */
-
- /*
- * Routing Information Protocol
- *
- * Derived from Xerox NS Routing Information Protocol
- * by changing 32-bit net numbers to sockaddr's and
- * padding stuff to 32-bit boundaries.
- */
-
- #ifndef _protocols_routed_h
- #define _protocols_routed_h
-
- #define RIPVERSION 1
-
- struct netinfo {
- struct sockaddr rip_dst; /* destination net/host */
- int rip_metric; /* cost of route */
- };
-
- struct rip {
- u_char rip_cmd; /* request/response */
- u_char rip_vers; /* protocol version # */
- u_char rip_res1[2]; /* pad to 32-bit boundary */
- union {
- struct netinfo ru_nets[1]; /* variable length... */
- char ru_tracefile[1]; /* ditto ... */
- } ripun;
- #define rip_nets ripun.ru_nets
- #define rip_tracefile ripun.ru_tracefile
- };
-
- struct entryinfo {
- struct sockaddr rtu_dst;
- struct sockaddr rtu_router;
- short rtu_flags;
- short rtu_state;
- int rtu_timer;
- int rtu_metric;
- int int_flags;
- char int_name[16];
- };
-
- /*
- * Packet types.
- */
- #define RIPCMD_REQUEST 1 /* want info - from suppliers */
- #define RIPCMD_RESPONSE 2 /* responding to request */
- #define RIPCMD_TRACEON 3 /* turn tracing on */
- #define RIPCMD_TRACEOFF 4 /* turn it off */
- #define RIPCMD_POLL 5 /* like request, but anyone answers */
- #define RIPCMD_POLLENTRY 6 /* like poll, but for entire entry */
-
- #define RIPCMD_MAX 7
- #ifdef RIPCMDS
- char *ripcmds[RIPCMD_MAX] =
- { "#0", "REQUEST", "RESPONSE", "TRACEON", "TRACEOFF", "POLL", "POLLENTRY" };
- #endif
-
- #define HOPCNT_INFINITY 16 /* per Xerox NS */
- #define MAXPACKETSIZE 512 /* max broadcast size */
-
- /*
- * 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 */
-
- #endif /*!_protocols_routed_h*/
-