root / lab4 / .minix-src / include / net / gen / rip.h @ 13
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1 | 13 | up20180614 | /*
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2 | net/gen/rip.h
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3 | |||
4 | Definitions for the Routing Information Protocol (RFC-1058).
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5 | |||
6 | Created: Aug 16, 1993 by Philip Homburg <philip@cs.vu.nl>
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7 | */
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8 | |||
9 | #ifndef NET__GEN__RIP_H
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10 | #define NET__GEN__RIP_H
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11 | |||
12 | typedef struct rip_hdr |
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13 | { |
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14 | u8_t rh_command; |
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15 | u8_t rh_version; |
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16 | u16_t rh_zero; |
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17 | } rip_hdr_t; |
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18 | |||
19 | #define RHC_REQUEST 1 |
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20 | #define RHC_RESPONSE 2 |
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21 | |||
22 | #define RIP_ENTRY_MAX 25 |
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23 | |||
24 | typedef struct rip_entry |
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25 | { |
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26 | union
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27 | { |
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28 | struct rip_entry_v1
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29 | { |
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30 | u16_t re_family; |
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31 | u16_t re_zero0; |
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32 | u32_t re_address; |
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33 | u32_t re_zero1; |
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34 | u32_t re_zero2; |
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35 | u32_t re_metric; |
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36 | } v1; |
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37 | struct rip_entry_v2
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38 | { |
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39 | u16_t re_family; |
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40 | u16_t re_tag; |
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41 | u32_t re_address; |
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42 | u32_t re_mask; |
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43 | u32_t re_nexthop; |
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44 | u32_t re_metric; |
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45 | } v2; |
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46 | } u; |
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47 | } rip_entry_t; |
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48 | |||
49 | #define RIP_FAMILY_IP 2 |
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50 | #define RIP_INFINITY 16 |
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51 | |||
52 | #define RIP_UDP_PORT 520 |
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53 | #define RIP_PERIOD 30 /* A responce is sent once every |
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54 | * RIP_PERIOD seconds
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55 | */
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56 | #define RIP_FUZZ 10 /* The actual value used is RIP_FREQUENCE - |
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57 | * a random number of at most RIP_FUZZ.
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58 | */
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59 | #define RIP_TIMEOUT 180 /* A route is dead after RIP_TIMEOUT seconds */ |
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60 | #define RIP_DELETE_TO 120 /* A dead route is removed after RIP_DELETE_TO |
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61 | * seconds
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62 | */
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63 | |||
64 | #ifdef __RIP_DEBUG
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65 | #undef RIP_PERIOD
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66 | #define RIP_PERIOD 15 |
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67 | #undef RIP_TIMEOUT
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68 | #define RIP_TIMEOUT 10 |
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69 | #undef RIP_DELETE_TO
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70 | #define RIP_DELETE_TO 10 |
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71 | #endif /* __RIP_DEBUG */ |
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72 | |||
73 | #endif /* NET__GEN__RIP_H */ |
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74 | |||
75 | /*
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76 | * $PchId: rip.h,v 1.3 1995/11/17 22:21:16 philip Exp $
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77 | */ |