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Length: 1870 (0x74e)
Types: TextFile
Notes: UNIX file
Names: »routed.h«
└─⟦8c4f54e61⟧ Bits:30004068/disk2.imd Interactive TCP/IP v.1.2
└─⟦8c4f54e61⟧ UNIX Filesystem
└─⟦this⟧ »hb/new/usr/include/protocols/routed.h«
/*
* Copyright (c) 1983 Regents of the University of California.
* All rights reserved. The Berkeley software License Agreement
* specifies the terms and conditions for redistribution.
*
* @(#)protocol.h 5.1 (Berkeley) 6/4/85
*/
#ident "@(#)routed.h 2.1 - 89/04/21"
/*
* 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.
*/
#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
};
/*
* Packet types.
*/
#define RIPCMD_REQUEST 1 /* want info */
#define RIPCMD_RESPONSE 2 /* responding to request */
#define RIPCMD_TRACEON 3 /* turn tracing on */
#define RIPCMD_TRACEOFF 4 /* turn it off */
#define RIPCMD_MAX 5
#ifdef RIPCMDS
char *ripcmds[RIPCMD_MAX] =
{ "#0", "REQUEST", "RESPONSE", "TRACEON", "TRACEOFF" };
#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 */