ospf6d/ospf6_top.c

   1 /*
   2  * OSPFv3 Top Level Data Structure
   3  * Copyright (C) 1999 Yasuhiro Ohara
   4  *
   5  * This file is part of GNU Zebra.
   6  *
   7  * GNU Zebra is free software; you can redistribute it and/or modify it
   8  * under the terms of the GNU General Public License as published by the
   9  * Free Software Foundation; either version 2, or (at your option) any
  10  * later version.
  11  *
  12  * GNU Zebra is distributed in the hope that it will be useful, but
  13  * WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15  * General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU General Public License
  18  * along with GNU Zebra; see the file COPYING.  If not, write to the
  19  * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  20  * Boston, MA 02111-1307, USA.
  21  */
  22
  23 #include <zebra.h>
  24
  25 #include "log.h"
  26 #include "memory.h"
  27 #include "vty.h"
  28 #include "linklist.h"
  29 #include "prefix.h"
  30 #include "table.h"
  31 #include "thread.h"
  32 #include "command.h"
  33
  34 #include "ospf6_hook.h"
  35 #include "ospf6_proto.h"
  36 #include "ospf6_prefix.h"
  37 #include "ospf6_lsa.h"
  38 #include "ospf6_lsdb.h"
  39
  40 #include "ospf6_message.h"
  41 #include "ospf6_neighbor.h"
  42 #include "ospf6_interface.h"
  43 #include "ospf6_area.h"
  44 #include "ospf6_top.h"
  45
  46 #include "ospf6_route.h"
  47 #include "ospf6_zebra.h"
  48
  49 #include "ospf6_nsm.h"
  50 #include "ospf6_asbr.h"
  51 #include "ospf6_abr.h"
  52
  53 #define HEADER_DEPENDENCY
  54 #include "ospf6d.h"
  55 #undef HEADER_DEPENDENCY
  56
  57 /* global ospf6d variable */
  58 struct ospf6 *ospf6;
  59
  60 static void
  61 ospf6_top_foreach_area (struct ospf6 *o6, void *arg, int val,
  62                         void (*func) (void *, int, void *))
  63 {
  64   listnode node;
  65   struct ospf6_area *o6a;
  66
  67   for (node = listhead (o6->area_list); node; nextnode (node))
  68     {
  69       o6a = (struct ospf6_area *) getdata (node);
  70       (*func) (arg, val, o6a);
  71     }
  72 }
  73
  74 static void
  75 ospf6_top_foreach_interface (struct ospf6 *o6, void *arg, int val,
  76                              void (*func) (void *, int, void *))
  77 {
  78   listnode node;
  79   struct ospf6_area *o6a;
  80
  81   for (node = listhead (o6->area_list); node; nextnode (node))
  82     {
  83       o6a = (struct ospf6_area *) getdata (node);
  84       (*o6a->foreach_if) (o6a, arg, val, func);
  85     }
  86 }
  87
  88 static void
  89 ospf6_top_foreach_neighbor (struct ospf6 *o6, void *arg, int val,
  90                             void (*func) (void *, int, void *))
  91 {
  92   listnode node;
  93   struct ospf6_area *o6a;
  94
  95   for (node = listhead (o6->area_list); node; nextnode (node))
  96     {
  97       o6a = (struct ospf6_area *) getdata (node);
  98       (*o6a->foreach_nei) (o6a, arg, val, func);
  99     }
 100 }
 101
 102 static int
 103 ospf6_top_maxage_remover (struct thread *t)
 104 {
 105   int count;
 106   struct ospf6 *o6 = (struct ospf6 *) THREAD_ARG (t);
 107
 108   o6->maxage_remover = (struct thread *) NULL;
 109
 110   count = 0;
 111   o6->foreach_nei (o6, &count, NBS_EXCHANGE, ospf6_count_state);
 112   o6->foreach_nei (o6, &count, NBS_LOADING, ospf6_count_state);
 113   if (count != 0)
 114     return 0;
 115
 116   ospf6_lsdb_remove_maxage (o6->lsdb);
 117   return 0;
 118 }
 119
 120 void
 121 ospf6_top_schedule_maxage_remover (void *arg, int val, struct ospf6 *o6)
 122 {
 123   if (o6->maxage_remover != NULL)
 124     return;
 125
 126   o6->maxage_remover =
 127     thread_add_event (master, ospf6_top_maxage_remover, o6, 0);
 128 }
 129
 130 void
 131 ospf6_show (struct vty *vty)
 132 {
 133   listnode n;
 134   struct ospf6_area *area;
 135   char id_string[32];
 136   unsigned long day, hour, min, sec;
 137   struct timeval now, running;
 138
 139   /* process id, router id */
 140   inet_ntop (AF_INET, &ospf6->router_id, id_string, sizeof (id_string));
 141   vty_out (vty, " Routing Process (%lu) with ID %s%s",
 142            ospf6->process_id, id_string, VTY_NEWLINE);
 143
 144   /* running time */
 145   gettimeofday (&now, (struct timezone *)NULL);
 146   ospf6_timeval_sub (&now, &ospf6->starttime, &running);
 147   ospf6_timeval_decode (&running, &day, &hour, &min, &sec, NULL, NULL);
 148   vty_out (vty, " Running %ld days %ld hours %ld minutes %ld seconds%s",
 149            day, hour, min, sec, VTY_NEWLINE);
 150
 151   vty_out (vty, " Supports only single TOS(TOS0) routes%s", VTY_NEWLINE);
 152
 153   /* Redistribute config */
 154   ospf6_redistribute_show_config (vty);
 155
 156   /* LSAs */
 157   vty_out (vty, " Number of AS scoped LSAs is %u%s",
 158            ospf6->lsdb->count, VTY_NEWLINE);
 159   vty_out (vty, " Route calculation executed %d times%s",
 160            ospf6->stat_route_calculation_execed, VTY_NEWLINE);
 161
 162   /* Route Statistics */
 163 #if 0
 164   ospf6_route_statistics_show (vty, ospf6->route_table);
 165 #endif
 166
 167   /* Areas */
 168   vty_out (vty, " Number of areas in this router is %u%s",
 169            listcount (ospf6->area_list), VTY_NEWLINE);
 170   for (n = listhead (ospf6->area_list); n; nextnode (n))
 171     {
 172       area = (struct ospf6_area *) getdata (n);
 173       ospf6_area_show (vty, area);
 174     }
 175 }
 176
 177 void
 178 ospf6_statistics_show (struct vty *vty, struct ospf6 *o6)
 179 {
 180   listnode node;
 181   struct ospf6_area *o6a;
 182   char running_time[128];
 183   struct timeval now, running;
 184
 185   gettimeofday (&now, (struct timezone *) NULL);
 186   ospf6_timeval_sub (&now, &o6->starttime, &running);
 187   ospf6_timeval_string (&running, running_time, sizeof (running_time));
 188
 189   vty_out (vty, "Statistics of OSPF process %ld%s",
 190            o6->process_id, VTY_NEWLINE);
 191   vty_out (vty, "  Running: %s%s", running_time, VTY_NEWLINE);
 192
 193 #if 0
 194   ospf6_route_statistics_show (vty, o6->route_table);
 195 #endif
 196
 197   for (node = listhead (o6->area_list); node; nextnode (node))
 198     {
 199       o6a = (struct ospf6_area *) getdata (node);
 200       ospf6_area_statistics_show (vty, o6a);
 201     }
 202 }
 203
 204 static struct ospf6 *
 205 ospf6_new ()
 206 {
 207   struct ospf6 *new;
 208   new = XMALLOC (MTYPE_OSPF6_TOP, sizeof (struct ospf6));
 209   if (new)
 210     memset (new, 0, sizeof (struct ospf6));
 211   return new;
 212 }
 213
 214 void
 215 ospf6_free (struct ospf6 *ospf6)
 216 {
 217   XFREE (MTYPE_OSPF6_TOP, ospf6);
 218 }
 219
 220 void
 221 ospf6_top_topology_add (struct ospf6_route_req *request)
 222 {
 223   assert (request->route.type == OSPF6_DEST_TYPE_ROUTER);
 224   if (CHECK_FLAG (request->path.router_bits, OSPF6_ROUTER_LSA_BIT_E))
 225     ospf6_asbr_asbr_entry_add (request);
 226 }
 227
 228 void
 229 ospf6_top_topology_remove (struct ospf6_route_req *request)
 230 {
 231   assert (request->route.type == OSPF6_DEST_TYPE_ROUTER);
 232   if (CHECK_FLAG (request->path.router_bits, OSPF6_ROUTER_LSA_BIT_E))
 233     ospf6_asbr_asbr_entry_remove (request);
 234 }
 235
 236 struct ospf6 *
 237 ospf6_create (unsigned long process_id)
 238 {
 239   struct ospf6 *o6;
 240   char namebuf[64];
 241
 242   o6 = ospf6_new ();
 243
 244   /* initialize */
 245   gettimeofday (&o6->starttime, (struct timezone *)NULL);
 246   o6->process_id = process_id;
 247   o6->version = OSPF6_VERSION;
 248   o6->area_list = list_new ();
 249
 250   o6->lsdb = ospf6_lsdb_create ();
 251
 252   o6->foreach_area = ospf6_top_foreach_area;
 253   o6->foreach_if = ospf6_top_foreach_interface;
 254   o6->foreach_nei = ospf6_top_foreach_neighbor;
 255
 256   snprintf (namebuf, sizeof (namebuf), "InterTopology table");
 257   o6->topology_table = ospf6_route_table_create (namebuf);
 258   ospf6_route_hook_register (ospf6_top_topology_add,
 259                              ospf6_top_topology_add,
 260                              ospf6_top_topology_remove,
 261                              o6->topology_table);
 262
 263 #if 0
 264   snprintf (namebuf, sizeof (namebuf), "External table");
 265   o6->external_table = ospf6_route_table_create (namebuf);
 266   ospf6_route_hook_register (ospf6_asbr_external_route_add,
 267                              ospf6_asbr_external_route_add,
 268                              ospf6_asbr_external_route_remove,
 269                              o6->external_table);
 270 #endif /*0*/
 271
 272   snprintf (namebuf, sizeof (namebuf), "Top route table");
 273   o6->route_table = ospf6_route_table_create (namebuf);
 274   ospf6_route_hook_register (ospf6_zebra_route_update_add,
 275                              ospf6_zebra_route_update_add,
 276                              ospf6_zebra_route_update_remove,
 277                              o6->route_table);
 278   ospf6_route_hook_register (ospf6_abr_route_add,
 279                              ospf6_abr_route_add,
 280                              ospf6_abr_route_remove,
 281                              o6->route_table);
 282
 283   return o6;
 284 }
 285
 286 void
 287 ospf6_delete (struct ospf6 *ospf6)
 288 {
 289   ospf6_route_remove_all (ospf6->route_table);
 290   ospf6_free (ospf6);
 291 }
 292
 293 struct ospf6 *
 294 ospf6_start ()
 295 {
 296   if (ospf6)
 297     return ospf6;
 298
 299   ospf6 = ospf6_create (0);
 300   return ospf6;
 301 }
 302
 303 void
 304 ospf6_stop ()
 305 {
 306   if (!ospf6)
 307     return;
 308
 309   ospf6_delete (ospf6);
 310   ospf6 = NULL;
 311 }
 312
 313 int
 314 ospf6_is_asbr (struct ospf6 *o6)
 315 {
 316   int i = 0;
 317   i |= ospf6_zebra_is_redistribute (ZEBRA_ROUTE_SYSTEM);
 318   i |= ospf6_zebra_is_redistribute (ZEBRA_ROUTE_CONNECT);
 319   i |= ospf6_zebra_is_redistribute (ZEBRA_ROUTE_STATIC);
 320   i |= ospf6_zebra_is_redistribute (ZEBRA_ROUTE_KERNEL);
 321   i |= ospf6_zebra_is_redistribute (ZEBRA_ROUTE_RIPNG);
 322   i |= ospf6_zebra_is_redistribute (ZEBRA_ROUTE_BGP);
 323   return (i);
 324 }
 325
 326 DEFUN (show_ipv6_ospf6_route,
 327        show_ipv6_ospf6_route_cmd,
 328        "show ipv6 ospf6 route",
 329        SHOW_STR
 330        IP6_STR
 331        OSPF6_STR
 332        "Routing table\n"
 333        )
 334 {
 335   OSPF6_CMD_CHECK_RUNNING ();
 336   return ospf6_route_table_show (vty, argc, argv, ospf6->route_table);
 337 }
 338
 339 ALIAS (show_ipv6_ospf6_route,
 340        show_ipv6_ospf6_route_prefix_cmd,
 341        "show ipv6 ospf6 route (X::X|detail)",
 342        SHOW_STR
 343        IP6_STR
 344        OSPF6_STR
 345        "Routing table\n"
 346        "match IPv6 prefix\n"
 347        )
 348
 349 DEFUN (show_ipv6_ospf6_topology,
 350        show_ipv6_ospf6_topology_cmd,
 351        "show ipv6 ospf6 topology",
 352        SHOW_STR
 353        IP6_STR
 354        OSPF6_STR
 355        "Inter Area topology information\n"
 356        )
 357 {
 358   OSPF6_CMD_CHECK_RUNNING ();
 359   return ospf6_route_table_show (vty, argc, argv, ospf6->topology_table);
 360 }
 361
 362 ALIAS (show_ipv6_ospf6_topology,
 363        show_ipv6_ospf6_topology_router_cmd,
 364        "show ipv6 ospf6 topology (A.B.C.D|<0-4294967295>|detail)",
 365        SHOW_STR
 366        IP6_STR
 367        OSPF6_STR
 368        "Inter Area topology information\n"
 369        OSPF6_ROUTER_ID_STR
 370        OSPF6_ROUTER_ID_STR
 371        "Detailed information\n"
 372        )
 373
 374 ALIAS (show_ipv6_ospf6_topology,
 375        show_ipv6_ospf6_topology_router_lsid_cmd,
 376        "show ipv6 ospf6 topology (A.B.C.D|<0-4294967295>) (A.B.C.D|<0-4294967295>)",
 377        SHOW_STR
 378        IP6_STR
 379        OSPF6_STR
 380        "Inter Area topology information\n"
 381        OSPF6_ROUTER_ID_STR
 382        OSPF6_ROUTER_ID_STR
 383        OSPF6_LS_ID_STR
 384        OSPF6_LS_ID_STR
 385        )
 386
 387 void
 388 ospf6_top_init ()
 389 {
 390   install_element (VIEW_NODE, &show_ipv6_ospf6_route_cmd);
 391   install_element (VIEW_NODE, &show_ipv6_ospf6_route_prefix_cmd);
 392   install_element (VIEW_NODE, &show_ipv6_ospf6_topology_cmd);
 393   install_element (VIEW_NODE, &show_ipv6_ospf6_topology_router_cmd);
 394   install_element (VIEW_NODE, &show_ipv6_ospf6_topology_router_lsid_cmd);
 395   install_element (ENABLE_NODE, &show_ipv6_ospf6_route_cmd);
 396   install_element (ENABLE_NODE, &show_ipv6_ospf6_route_prefix_cmd);
 397   install_element (ENABLE_NODE, &show_ipv6_ospf6_topology_cmd);
 398   install_element (ENABLE_NODE, &show_ipv6_ospf6_topology_router_cmd);
 399   install_element (ENABLE_NODE, &show_ipv6_ospf6_topology_router_lsid_cmd);
 400 }
 401