source: trunk/minix/include/net/gen/rip.h@ 15

/*
net/gen/rip.h

Definitions for the Routing Information Protocol (RFC-1058).

Created:        Aug 16, 1993 by Philip Homburg <philip@cs.vu.nl>
*/

#ifndef NET__GEN__RIP_H
#define NET__GEN__RIP_H

typedef struct rip_hdr
{
        u8_t rh_command;
        u8_t rh_version;
        u16_t rh_zero;
} rip_hdr_t;

#define RHC_REQUEST     1
#define RHC_RESPONSE    2

#define RIP_ENTRY_MAX   25

typedef struct rip_entry
{
        union
        {
                struct rip_entry_v1
                {
                        u16_t re_family;
                        u16_t re_zero0;
                        u32_t re_address;
                        u32_t re_zero1;
                        u32_t re_zero2;
                        u32_t re_metric;
                } v1;
                struct rip_entry_v2
                {
                        u16_t re_family;
                        u16_t re_tag;
                        u32_t re_address;
                        u32_t re_mask;
                        u32_t re_nexthop;
                        u32_t re_metric;
                } v2;
        } u;
} rip_entry_t;

#define RIP_FAMILY_IP   2
#define RIP_INFINITY    16

#define RIP_UDP_PORT    520
#define RIP_PERIOD       30     /* A responce is sent once every
                                 * RIP_PERIOD seconds
                                 */
#define RIP_FUZZ         10     /* The actual value used is RIP_FREQUENCE -
                                 * a random number of at most RIP_FUZZ.
                                 */
#define RIP_TIMEOUT     180     /* A route is dead after RIP_TIMEOUT seconds */
#define RIP_DELETE_TO   120     /* A dead route is removed after RIP_DELETE_TO
                                 * seconds
                                 */

#ifdef __RIP_DEBUG
#undef RIP_PERIOD
#define RIP_PERIOD      15
#undef RIP_TIMEOUT
#define RIP_TIMEOUT     10
#undef RIP_DELETE_TO
#define RIP_DELETE_TO   10
#endif /* __RIP_DEBUG */

#endif /* NET__GEN__RIP_H */

/*
 * $PchId: rip.h,v 1.3 1995/11/17 22:21:16 philip Exp $
 */