minix/include/net/gen/rip.h

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