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root / lab4 / .minix-src / include / net / gen / rip.h @ 13

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/*
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net/gen/rip.h
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Definitions for the Routing Information Protocol (RFC-1058).
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Created:        Aug 16, 1993 by Philip Homburg <philip@cs.vu.nl>
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*/
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#ifndef NET__GEN__RIP_H
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#define NET__GEN__RIP_H
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typedef struct rip_hdr
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{
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        u8_t rh_command;
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        u8_t rh_version;
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        u16_t rh_zero;
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} rip_hdr_t;
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#define RHC_REQUEST        1
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#define RHC_RESPONSE        2
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#define RIP_ENTRY_MAX        25
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typedef struct rip_entry
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{
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        union
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        {
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                struct rip_entry_v1
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                {
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                        u16_t re_family;
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                        u16_t re_zero0;
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                        u32_t re_address;
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                        u32_t re_zero1;
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                        u32_t re_zero2;
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                        u32_t re_metric;
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                } v1;
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                struct rip_entry_v2
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                {
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                        u16_t re_family;
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                        u16_t re_tag;
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                        u32_t re_address;
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                        u32_t re_mask;
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                        u32_t re_nexthop;
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                        u32_t re_metric;
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                } v2;
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        } u;
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} rip_entry_t;
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#define RIP_FAMILY_IP        2
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#define RIP_INFINITY        16
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#define RIP_UDP_PORT        520
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#define RIP_PERIOD         30        /* A responce is sent once every
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                                 * RIP_PERIOD seconds
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                                 */
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#define RIP_FUZZ         10        /* The actual value used is RIP_FREQUENCE -
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                                 * a random number of at most RIP_FUZZ.
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                                 */
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#define RIP_TIMEOUT        180        /* A route is dead after RIP_TIMEOUT seconds */
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#define RIP_DELETE_TO        120        /* A dead route is removed after RIP_DELETE_TO
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                                 * seconds
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                                 */
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#ifdef __RIP_DEBUG
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#undef RIP_PERIOD
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#define RIP_PERIOD        15
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#undef RIP_TIMEOUT
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#define RIP_TIMEOUT        10
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#undef RIP_DELETE_TO
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#define RIP_DELETE_TO        10
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#endif /* __RIP_DEBUG */
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#endif /* NET__GEN__RIP_H */
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/*
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 * $PchId: rip.h,v 1.3 1995/11/17 22:21:16 philip Exp $
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 */