projects / unix-history / blame
| Commit | Line | Data |
|---|---|---|
| e69f81e0 | 1 | /* |
| 3565c602 KB |
2 | * Copyright (c) 1985 The Regents of the University of California. |
| 3 | * All rights reserved. | |
| e69f81e0 | 4 | * |
| 3565c602 KB |
5 | * This file includes significant work done at Cornell University by |
| 6 | * Bill Nesheim. That work included by permission. | |
| e69f81e0 | 7 | * |
| 6ecf3d85 | 8 | * %sccs.include.redist.c% |
| 3565c602 | 9 | * |
| 6ecf3d85 | 10 | * @(#)protocol.h 5.6 (Berkeley) %G% |
| e69f81e0 KS |
11 | */ |
| 12 | ||
| 33ec2536 KS |
13 | /* |
| 14 | * Xerox Routing Information Protocol | |
| 15 | * | |
| 16 | */ | |
| 17 | ||
| 18 | struct netinfo { | |
| 84f93e8f KS |
19 | union ns_net rip_dst; /* destination net */ |
| 20 | u_short rip_metric; /* cost of route */ | |
| 33ec2536 KS |
21 | }; |
| 22 | ||
| 23 | struct rip { | |
| 24 | u_short rip_cmd; /* request/response */ | |
| 25 | struct netinfo rip_nets[1]; /* variable length */ | |
| 26 | }; | |
| 27 | ||
| 28 | /* | |
| 29 | * Packet types. | |
| 30 | */ | |
| 31 | #define RIPCMD_REQUEST 1 /* want info */ | |
| 32 | #define RIPCMD_RESPONSE 2 /* responding to request */ | |
| 33 | ||
| 34 | #define RIPCMD_MAX 3 | |
| 35 | #ifdef RIPCMDS | |
| 36 | char *ripcmds[RIPCMD_MAX] = | |
| 37 | { "#0", "REQUEST", "RESPONSE" }; | |
| 38 | #endif | |
| 39 | ||
| 40 | #define HOPCNT_INFINITY 16 /* per Xerox NS */ | |
| 84f93e8f | 41 | #define DSTNETS_ALL 0xffffffff /* per Xerox NS */ |
| 33ec2536 KS |
42 | #define MAXPACKETSIZE 512 /* max broadcast size */ |
| 43 | ||
| 84f93e8f KS |
44 | extern union ns_net ns_anynet; |
| 45 | extern union ns_net ns_zeronet; | |
| 46 | ||
| 33ec2536 KS |
47 | /* |
| 48 | * Timer values used in managing the routing table. | |
| 49 | * Every update forces an entry's timer to be reset. After | |
| 50 | * EXPIRE_TIME without updates, the entry is marked invalid, | |
| 51 | * but held onto until GARBAGE_TIME so that others may | |
| 52 | * see it "be deleted". | |
| 53 | */ | |
| 54 | #define TIMER_RATE 30 /* alarm clocks every 30 seconds */ | |
| 55 | ||
| 56 | #define SUPPLY_INTERVAL 30 /* time to supply tables */ | |
| 57 | ||
| 58 | #define EXPIRE_TIME 180 /* time to mark entry invalid */ | |
| 59 | #define GARBAGE_TIME 240 /* time to garbage collect */ |