ospf6_route.h 9.2 KB

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  1. /*
  2. * Copyright (C) 2003 Yasuhiro Ohara
  3. *
  4. * This file is part of GNU Zebra.
  5. *
  6. * GNU Zebra is free software; you can redistribute it and/or modify it
  7. * under the terms of the GNU General Public License as published by the
  8. * Free Software Foundation; either version 2, or (at your option) any
  9. * later version.
  10. *
  11. * GNU Zebra is distributed in the hope that it will be useful, but
  12. * WITHOUT ANY WARRANTY; without even the implied warranty of
  13. * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  14. * General Public License for more details.
  15. *
  16. * You should have received a copy of the GNU General Public License
  17. * along with GNU Zebra; see the file COPYING. If not, write to the
  18. * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  19. * Boston, MA 02111-1307, USA.
  20. */
  21. #ifndef OSPF6_ROUTE_H
  22. #define OSPF6_ROUTE_H
  23. #define OSPF6_MULTI_PATH_LIMIT 4
  24. /* Debug option */
  25. extern unsigned char conf_debug_ospf6_route;
  26. #define OSPF6_DEBUG_ROUTE_TABLE 0x01
  27. #define OSPF6_DEBUG_ROUTE_INTRA 0x02
  28. #define OSPF6_DEBUG_ROUTE_INTER 0x04
  29. #define OSPF6_DEBUG_ROUTE_ON(level) \
  30. (conf_debug_ospf6_route |= (level))
  31. #define OSPF6_DEBUG_ROUTE_OFF(level) \
  32. (conf_debug_ospf6_route &= ~(level))
  33. #define IS_OSPF6_DEBUG_ROUTE(e) \
  34. (conf_debug_ospf6_route & OSPF6_DEBUG_ROUTE_ ## e)
  35. /* Nexthop */
  36. struct ospf6_nexthop
  37. {
  38. /* Interface index */
  39. unsigned int ifindex;
  40. /* IP address, if any */
  41. struct in6_addr address;
  42. };
  43. #define ospf6_nexthop_is_set(x) \
  44. ((x)->ifindex || ! IN6_IS_ADDR_UNSPECIFIED (&(x)->address))
  45. #define ospf6_nexthop_is_same(a,b) \
  46. ((a)->ifindex == (b)->ifindex && \
  47. IN6_ARE_ADDR_EQUAL (&(a)->address, &(b)->address))
  48. #define ospf6_nexthop_clear(x) \
  49. do { \
  50. (x)->ifindex = 0; \
  51. memset (&(x)->address, 0, sizeof (struct in6_addr)); \
  52. } while (0)
  53. #define ospf6_nexthop_copy(a, b) \
  54. do { \
  55. (a)->ifindex = (b)->ifindex; \
  56. memcpy (&(a)->address, &(b)->address, \
  57. sizeof (struct in6_addr)); \
  58. } while (0)
  59. /* Path */
  60. struct ospf6_ls_origin
  61. {
  62. u_int16_t type;
  63. u_int32_t id;
  64. u_int32_t adv_router;
  65. };
  66. struct ospf6_path
  67. {
  68. /* Link State Origin */
  69. struct ospf6_ls_origin origin;
  70. /* Router bits */
  71. u_char router_bits;
  72. /* Optional Capabilities */
  73. u_char options[3];
  74. /* Prefix Options */
  75. u_char prefix_options;
  76. /* Associated Area */
  77. u_int32_t area_id;
  78. /* Path-type */
  79. u_char type;
  80. u_char subtype; /* only used for redistribute i.e ZEBRA_ROUTE_XXX */
  81. /* Cost */
  82. u_int8_t metric_type;
  83. u_int32_t cost;
  84. u_int32_t cost_e2;
  85. };
  86. #define OSPF6_PATH_TYPE_NONE 0
  87. #define OSPF6_PATH_TYPE_INTRA 1
  88. #define OSPF6_PATH_TYPE_INTER 2
  89. #define OSPF6_PATH_TYPE_EXTERNAL1 3
  90. #define OSPF6_PATH_TYPE_EXTERNAL2 4
  91. #define OSPF6_PATH_TYPE_REDISTRIBUTE 5
  92. #define OSPF6_PATH_TYPE_MAX 6
  93. #include "prefix.h"
  94. #include "table.h"
  95. struct ospf6_route
  96. {
  97. struct route_node *rnode;
  98. struct ospf6_route *prev;
  99. struct ospf6_route *next;
  100. unsigned int lock;
  101. /* Destination Type */
  102. u_char type;
  103. /* Destination ID */
  104. struct prefix prefix;
  105. /* Time */
  106. struct timeval installed;
  107. struct timeval changed;
  108. /* flag */
  109. u_char flag;
  110. /* path */
  111. struct ospf6_path path;
  112. /* nexthop */
  113. struct ospf6_nexthop nexthop[OSPF6_MULTI_PATH_LIMIT];
  114. /* route option */
  115. void *route_option;
  116. /* link state id for advertising */
  117. u_int32_t linkstate_id;
  118. };
  119. #define OSPF6_DEST_TYPE_NONE 0
  120. #define OSPF6_DEST_TYPE_ROUTER 1
  121. #define OSPF6_DEST_TYPE_NETWORK 2
  122. #define OSPF6_DEST_TYPE_DISCARD 3
  123. #define OSPF6_DEST_TYPE_LINKSTATE 4
  124. #define OSPF6_DEST_TYPE_RANGE 5
  125. #define OSPF6_DEST_TYPE_MAX 6
  126. #define OSPF6_ROUTE_CHANGE 0x01
  127. #define OSPF6_ROUTE_ADD 0x02
  128. #define OSPF6_ROUTE_REMOVE 0x04
  129. #define OSPF6_ROUTE_BEST 0x08
  130. #define OSPF6_ROUTE_ACTIVE_SUMMARY 0x10
  131. #define OSPF6_ROUTE_DO_NOT_ADVERTISE 0x20
  132. #define OSPF6_ROUTE_WAS_REMOVED 0x40
  133. struct ospf6_route_table
  134. {
  135. /* patricia tree */
  136. struct route_table *table;
  137. u_int32_t count;
  138. /* hooks */
  139. void (*hook_add) (struct ospf6_route *);
  140. void (*hook_change) (struct ospf6_route *);
  141. void (*hook_remove) (struct ospf6_route *);
  142. };
  143. extern const char *ospf6_dest_type_str[OSPF6_DEST_TYPE_MAX];
  144. extern const char *ospf6_dest_type_substr[OSPF6_DEST_TYPE_MAX];
  145. #define OSPF6_DEST_TYPE_NAME(x) \
  146. (0 < (x) && (x) < OSPF6_DEST_TYPE_MAX ? \
  147. ospf6_dest_type_str[(x)] : ospf6_dest_type_str[0])
  148. #define OSPF6_DEST_TYPE_SUBSTR(x) \
  149. (0 < (x) && (x) < OSPF6_DEST_TYPE_MAX ? \
  150. ospf6_dest_type_substr[(x)] : ospf6_dest_type_substr[0])
  151. extern const char *ospf6_path_type_str[OSPF6_PATH_TYPE_MAX];
  152. extern const char *ospf6_path_type_substr[OSPF6_PATH_TYPE_MAX];
  153. #define OSPF6_PATH_TYPE_NAME(x) \
  154. (0 < (x) && (x) < OSPF6_PATH_TYPE_MAX ? \
  155. ospf6_path_type_str[(x)] : ospf6_path_type_str[0])
  156. #define OSPF6_PATH_TYPE_SUBSTR(x) \
  157. (0 < (x) && (x) < OSPF6_PATH_TYPE_MAX ? \
  158. ospf6_path_type_substr[(x)] : ospf6_path_type_substr[0])
  159. #define OSPF6_ROUTE_ADDRESS_STR "Display the route bestmatches the address\n"
  160. #define OSPF6_ROUTE_PREFIX_STR "Display the route\n"
  161. #define OSPF6_ROUTE_MATCH_STR "Display the route matches the prefix\n"
  162. #define ospf6_route_is_prefix(p, r) \
  163. (memcmp (p, &(r)->prefix, sizeof (struct prefix)) == 0)
  164. #define ospf6_route_is_same(ra, rb) \
  165. (prefix_same (&(ra)->prefix, &(rb)->prefix))
  166. #define ospf6_route_is_same_origin(ra, rb) \
  167. ((ra)->path.area_id == (rb)->path.area_id && \
  168. memcmp (&(ra)->path.origin, &(rb)->path.origin, \
  169. sizeof (struct ospf6_ls_origin)) == 0)
  170. #define ospf6_route_is_identical(ra, rb) \
  171. ((ra)->type == (rb)->type && \
  172. memcmp (&(ra)->prefix, &(rb)->prefix, sizeof (struct prefix)) == 0 && \
  173. memcmp (&(ra)->path, &(rb)->path, sizeof (struct ospf6_path)) == 0 && \
  174. memcmp (&(ra)->nexthop, &(rb)->nexthop, \
  175. sizeof (struct ospf6_nexthop) * OSPF6_MULTI_PATH_LIMIT) == 0)
  176. #define ospf6_route_is_best(r) (CHECK_FLAG ((r)->flag, OSPF6_ROUTE_BEST))
  177. #define ospf6_linkstate_prefix_adv_router(x) \
  178. (*(u_int32_t *)(&(x)->u.prefix6.s6_addr[0]))
  179. #define ospf6_linkstate_prefix_id(x) \
  180. (*(u_int32_t *)(&(x)->u.prefix6.s6_addr[4]))
  181. #define ADV_ROUTER_IN_PREFIX(x) \
  182. (*(u_int32_t *)(&(x)->u.prefix6.s6_addr[0]))
  183. #define ID_IN_PREFIX(x) \
  184. (*(u_int32_t *)(&(x)->u.prefix6.s6_addr[4]))
  185. /* Function prototype */
  186. void ospf6_linkstate_prefix (u_int32_t adv_router, u_int32_t id,
  187. struct prefix *prefix);
  188. void ospf6_linkstate_prefix2str (struct prefix *prefix, char *buf, int size);
  189. struct ospf6_route *ospf6_route_create ();
  190. void ospf6_route_delete (struct ospf6_route *);
  191. struct ospf6_route *ospf6_route_copy (struct ospf6_route *route);
  192. void ospf6_route_lock (struct ospf6_route *route);
  193. void ospf6_route_unlock (struct ospf6_route *route);
  194. struct ospf6_route *
  195. ospf6_route_lookup (struct prefix *prefix,
  196. struct ospf6_route_table *table);
  197. struct ospf6_route *
  198. ospf6_route_lookup_identical (struct ospf6_route *route,
  199. struct ospf6_route_table *table);
  200. struct ospf6_route *
  201. ospf6_route_lookup_bestmatch (struct prefix *prefix,
  202. struct ospf6_route_table *table);
  203. struct ospf6_route *
  204. ospf6_route_add (struct ospf6_route *route, struct ospf6_route_table *table);
  205. void
  206. ospf6_route_remove (struct ospf6_route *route, struct ospf6_route_table *table);
  207. struct ospf6_route *ospf6_route_head (struct ospf6_route_table *table);
  208. struct ospf6_route *ospf6_route_next (struct ospf6_route *route);
  209. struct ospf6_route *ospf6_route_best_next (struct ospf6_route *route);
  210. struct ospf6_route *ospf6_route_match_head (struct prefix *prefix,
  211. struct ospf6_route_table *table);
  212. struct ospf6_route *ospf6_route_match_next (struct prefix *prefix,
  213. struct ospf6_route *route);
  214. void ospf6_route_remove_all (struct ospf6_route_table *);
  215. struct ospf6_route_table *ospf6_route_table_create ();
  216. void ospf6_route_table_delete (struct ospf6_route_table *);
  217. void ospf6_route_dump (struct ospf6_route_table *table);
  218. void ospf6_route_show (struct vty *vty, struct ospf6_route *route);
  219. void ospf6_route_show_detail (struct vty *vty, struct ospf6_route *route);
  220. int ospf6_route_table_show (struct vty *, int, const char *[],
  221. struct ospf6_route_table *);
  222. int ospf6_linkstate_table_show (struct vty *vty, int argc, const char *argv[],
  223. struct ospf6_route_table *table);
  224. void ospf6_brouter_show_header (struct vty *vty);
  225. void ospf6_brouter_show (struct vty *vty, struct ospf6_route *route);
  226. int config_write_ospf6_debug_route (struct vty *vty);
  227. void install_element_ospf6_debug_route ();
  228. void ospf6_route_init ();
  229. #endif /* OSPF6_ROUTE_H */