ospf6d/ospf6_top.c

   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
  22 #include <zebra.h>
  23
  24 #include "log.h"
  25 #include "memory.h"
  26 #include "vty.h"
  27 #include "linklist.h"
  28 #include "prefix.h"
  29 #include "table.h"
  30 #include "thread.h"
  31 #include "command.h"
  32
  33 #include "ospf6_proto.h"
  34 #include "ospf6_message.h"
  35 #include "ospf6_lsa.h"
  36 #include "ospf6_lsdb.h"
  37 #include "ospf6_route.h"
  38 #include "ospf6_zebra.h"
  39
  40 #include "ospf6_top.h"
  41 #include "ospf6_area.h"
  42 #include "ospf6_interface.h"
  43 #include "ospf6_neighbor.h"
  44
  45 #include "ospf6_flood.h"
  46 #include "ospf6_asbr.h"
  47 #include "ospf6_abr.h"
  48 #include "ospf6_intra.h"
  49 #include "ospf6d.h"
  50
  51 /* global ospf6d variable */
  52 struct ospf6 *ospf6;
  53
  54 void
  55 ospf6_top_lsdb_hook_add (struct ospf6_lsa *lsa)
  56 {
  57   switch (ntohs (lsa->header->type))
  58     {
  59       case OSPF6_LSTYPE_AS_EXTERNAL:
  60         ospf6_asbr_lsa_add (lsa);
  61         break;
  62
  63       default:
  64         break;
  65     }
  66 }
  67
  68 void
  69 ospf6_top_lsdb_hook_remove (struct ospf6_lsa *lsa)
  70 {
  71   switch (ntohs (lsa->header->type))
  72     {
  73       case OSPF6_LSTYPE_AS_EXTERNAL:
  74         ospf6_asbr_lsa_remove (lsa);
  75         break;
  76
  77       default:
  78         break;
  79     }
  80 }
  81
  82 void
  83 ospf6_top_route_hook_add (struct ospf6_route *route)
  84 {
  85   ospf6_abr_originate_summary (route);
  86   ospf6_zebra_route_update_add (route);
  87 }
  88
  89 void
  90 ospf6_top_route_hook_remove (struct ospf6_route *route)
  91 {
  92   ospf6_abr_originate_summary (route);
  93   ospf6_zebra_route_update_remove (route);
  94 }
  95
  96 void
  97 ospf6_top_brouter_hook_add (struct ospf6_route *route)
  98 {
  99   ospf6_abr_examin_brouter (ADV_ROUTER_IN_PREFIX (&route->prefix));
 100   ospf6_asbr_lsentry_add (route);
 101   ospf6_abr_originate_summary (route);
 102 }
 103
 104 void
 105 ospf6_top_brouter_hook_remove (struct ospf6_route *route)
 106 {
 107   ospf6_abr_examin_brouter (ADV_ROUTER_IN_PREFIX (&route->prefix));
 108   ospf6_asbr_lsentry_remove (route);
 109   ospf6_abr_originate_summary (route);
 110 }
 111
 112 struct ospf6 *
 113 ospf6_create ()
 114 {
 115   struct ospf6 *o;
 116
 117   o = XMALLOC (MTYPE_OSPF6_TOP, sizeof (struct ospf6));
 118   memset (o, 0, sizeof (struct ospf6));
 119
 120   /* initialize */
 121   gettimeofday (&o->starttime, (struct timezone *) NULL);
 122   o->area_list = list_new ();
 123   o->area_list->cmp = ospf6_area_cmp;
 124   o->lsdb = ospf6_lsdb_create (o);
 125   o->lsdb_self = ospf6_lsdb_create (o);
 126   o->lsdb->hook_add = ospf6_top_lsdb_hook_add;
 127   o->lsdb->hook_remove = ospf6_top_lsdb_hook_remove;
 128
 129   o->route_table = OSPF6_ROUTE_TABLE_CREATE (GLOBAL, ROUTES);
 130   o->route_table->scope = o;
 131   o->route_table->hook_add = ospf6_top_route_hook_add;
 132   o->route_table->hook_remove = ospf6_top_route_hook_remove;
 133
 134   o->brouter_table = OSPF6_ROUTE_TABLE_CREATE (GLOBAL, BORDER_ROUTERS);
 135   o->brouter_table->scope = o;
 136   o->brouter_table->hook_add = ospf6_top_brouter_hook_add;
 137   o->brouter_table->hook_remove = ospf6_top_brouter_hook_remove;
 138
 139   o->external_table = OSPF6_ROUTE_TABLE_CREATE (GLOBAL, EXTERNAL_ROUTES);
 140   o->external_table->scope = o;
 141
 142   o->external_id_table = route_table_init ();
 143
 144   return o;
 145 }
 146
 147 void
 148 ospf6_delete (struct ospf6 *o)
 149 {
 150   struct listnode *node, *nnode;
 151   struct ospf6_area *oa;
 152
 153   for (ALL_LIST_ELEMENTS (o->area_list, node, nnode, oa))
 154     ospf6_area_delete (oa);
 155
 156   ospf6_lsdb_delete (o->lsdb);
 157   ospf6_lsdb_delete (o->lsdb_self);
 158
 159   ospf6_route_table_delete (o->route_table);
 160   ospf6_route_table_delete (o->brouter_table);
 161
 162   ospf6_route_table_delete (o->external_table);
 163   route_table_finish (o->external_id_table);
 164
 165   XFREE (MTYPE_OSPF6_TOP, o);
 166 }
 167
 168 void
 169 ospf6_enable (struct ospf6 *o)
 170 {
 171   struct listnode *node, *nnode;
 172   struct ospf6_area *oa;
 173
 174   if (CHECK_FLAG (o->flag, OSPF6_DISABLED))
 175     {
 176       UNSET_FLAG (o->flag, OSPF6_DISABLED);
 177       for (ALL_LIST_ELEMENTS (o->area_list, node, nnode, oa))
 178         ospf6_area_enable (oa);
 179     }
 180 }
 181
 182 void
 183 ospf6_disable (struct ospf6 *o)
 184 {
 185   struct listnode *node, *nnode;
 186   struct ospf6_area *oa;
 187
 188   if (! CHECK_FLAG (o->flag, OSPF6_DISABLED))
 189     {
 190       SET_FLAG (o->flag, OSPF6_DISABLED);
 191
 192       for (ALL_LIST_ELEMENTS (o->area_list, node, nnode, oa))
 193         ospf6_area_disable (oa);
 194
 195       ospf6_lsdb_remove_all (o->lsdb);
 196       ospf6_route_remove_all (o->route_table);
 197       ospf6_route_remove_all (o->brouter_table);
 198     }
 199 }
 200
 201 int
 202 ospf6_maxage_remover (struct thread *thread)
 203 {
 204   struct ospf6 *o = (struct ospf6 *) THREAD_ARG (thread);
 205   struct ospf6_area *oa;
 206   struct ospf6_interface *oi;
 207   struct ospf6_neighbor *on;
 208   struct listnode *i, *j, *k;
 209
 210   o->maxage_remover = (struct thread *) NULL;
 211
 212   for (ALL_LIST_ELEMENTS_RO (o->area_list, i, oa))
 213     {
 214       for (ALL_LIST_ELEMENTS_RO (oa->if_list, j, oi))
 215         {
 216           for (ALL_LIST_ELEMENTS_RO (oi->neighbor_list, k, on))
 217             {
 218               if (on->state != OSPF6_NEIGHBOR_EXCHANGE &&
 219                   on->state != OSPF6_NEIGHBOR_LOADING)
 220                 continue;
 221
 222               return 0;
 223             }
 224         }
 225     }
 226
 227   for (ALL_LIST_ELEMENTS_RO (o->area_list, i, oa))
 228     {
 229       for (ALL_LIST_ELEMENTS_RO (oa->if_list, j, oi))
 230         OSPF6_LSDB_MAXAGE_REMOVER (oi->lsdb);
 231
 232       OSPF6_LSDB_MAXAGE_REMOVER (oa->lsdb);
 233     }
 234   OSPF6_LSDB_MAXAGE_REMOVER (o->lsdb);
 235
 236   return 0;
 237 }
 238
 239 void
 240 ospf6_maxage_remove (struct ospf6 *o)
 241 {
 242   if (o && ! o->maxage_remover)
 243     o->maxage_remover = thread_add_event (master, ospf6_maxage_remover, o, 0);
 244 }
 245
 246 /* start ospf6 */
 247 DEFUN (router_ospf6,
 248        router_ospf6_cmd,
 249        "router ospf6",
 250        ROUTER_STR
 251        OSPF6_STR)
 252 {
 253   if (ospf6 == NULL)
 254     ospf6 = ospf6_create ();
 255   if (CHECK_FLAG (ospf6->flag, OSPF6_DISABLED))
 256     ospf6_enable (ospf6);
 257
 258   /* set current ospf point. */
 259   vty->node = OSPF6_NODE;
 260   vty->index = ospf6;
 261
 262   return CMD_SUCCESS;
 263 }
 264
 265 /* stop ospf6 */
 266 DEFUN (no_router_ospf6,
 267        no_router_ospf6_cmd,
 268        "no router ospf6",
 269        NO_STR
 270        OSPF6_ROUTER_STR)
 271 {
 272   if (ospf6 == NULL || CHECK_FLAG (ospf6->flag, OSPF6_DISABLED))
 273     vty_out (vty, "OSPFv3 is not running%s", VNL);
 274   else
 275     ospf6_disable (ospf6);
 276
 277   /* return to config node . */
 278   vty->node = CONFIG_NODE;
 279   vty->index = NULL;
 280
 281   return CMD_SUCCESS;
 282 }
 283
 284 /* change Router_ID commands. */
 285 DEFUN (ospf6_router_id,
 286        ospf6_router_id_cmd,
 287        "router-id A.B.C.D",
 288        "Configure OSPF Router-ID\n"
 289        V4NOTATION_STR)
 290 {
 291   int ret;
 292   u_int32_t router_id;
 293   struct ospf6 *o;
 294
 295   o = (struct ospf6 *) vty->index;
 296
 297   ret = inet_pton (AF_INET, argv[0], &router_id);
 298   if (ret == 0)
 299     {
 300       vty_out (vty, "malformed OSPF Router-ID: %s%s", argv[0], VNL);
 301       return CMD_SUCCESS;
 302     }
 303
 304   o->router_id_static = router_id;
 305   if (o->router_id  == 0)
 306     o->router_id  = router_id;
 307
 308   return CMD_SUCCESS;
 309 }
 310
 311 DEFUN (ospf6_interface_area,
 312        ospf6_interface_area_cmd,
 313        "interface IFNAME area A.B.C.D",
 314        "Enable routing on an IPv6 interface\n"
 315        IFNAME_STR
 316        "Specify the OSPF6 area ID\n"
 317        "OSPF6 area ID in IPv4 address notation\n"
 318       )
 319 {
 320   struct ospf6 *o;
 321   struct ospf6_area *oa;
 322   struct ospf6_interface *oi;
 323   struct interface *ifp;
 324   u_int32_t area_id;
 325
 326   o = (struct ospf6 *) vty->index;
 327
 328   /* find/create ospf6 interface */
 329   ifp = if_get_by_name (argv[0]);
 330   oi = (struct ospf6_interface *) ifp->info;
 331   if (oi == NULL)
 332     oi = ospf6_interface_create (ifp);
 333   if (oi->area)
 334     {
 335       vty_out (vty, "%s already attached to Area %s%s",
 336                oi->interface->name, oi->area->name, VNL);
 337       return CMD_SUCCESS;
 338     }
 339
 340   /* parse Area-ID */
 341   if (inet_pton (AF_INET, argv[1], &area_id) != 1)
 342     {
 343       vty_out (vty, "Invalid Area-ID: %s%s", argv[1], VNL);
 344       return CMD_SUCCESS;
 345     }
 346
 347   /* find/create ospf6 area */
 348   oa = ospf6_area_lookup (area_id, o);
 349   if (oa == NULL)
 350     oa = ospf6_area_create (area_id, o);
 351
 352   /* attach interface to area */
 353   listnode_add (oa->if_list, oi); /* sort ?? */
 354   oi->area = oa;
 355
 356   SET_FLAG (oa->flag, OSPF6_AREA_ENABLE);
 357
 358   /* start up */
 359   thread_add_event (master, interface_up, oi, 0);
 360
 361   /* If the router is ABR, originate summary routes */
 362   if (ospf6_is_router_abr (o))
 363     ospf6_abr_enable_area (oa);
 364
 365   return CMD_SUCCESS;
 366 }
 367
 368 DEFUN (no_ospf6_interface_area,
 369        no_ospf6_interface_area_cmd,
 370        "no interface IFNAME area A.B.C.D",
 371        NO_STR
 372        "Disable routing on an IPv6 interface\n"
 373        IFNAME_STR
 374        "Specify the OSPF6 area ID\n"
 375        "OSPF6 area ID in IPv4 address notation\n"
 376        )
 377 {
 378   struct ospf6 *o;
 379   struct ospf6_interface *oi;
 380   struct ospf6_area *oa;
 381   struct interface *ifp;
 382   u_int32_t area_id;
 383
 384   o = (struct ospf6 *) vty->index;
 385
 386   ifp = if_lookup_by_name (argv[0]);
 387   if (ifp == NULL)
 388     {
 389       vty_out (vty, "No such interface %s%s", argv[0], VNL);
 390       return CMD_SUCCESS;
 391     }
 392
 393   oi = (struct ospf6_interface *) ifp->info;
 394   if (oi == NULL)
 395     {
 396       vty_out (vty, "Interface %s not enabled%s", ifp->name, VNL);
 397       return CMD_SUCCESS;
 398     }
 399
 400   /* parse Area-ID */
 401   if (inet_pton (AF_INET, argv[1], &area_id) != 1)
 402     {
 403       vty_out (vty, "Invalid Area-ID: %s%s", argv[1], VNL);
 404       return CMD_SUCCESS;
 405     }
 406
 407   if (oi->area->area_id != area_id)
 408     {
 409       vty_out (vty, "Wrong Area-ID: %s is attached to area %s%s",
 410                oi->interface->name, oi->area->name, VNL);
 411       return CMD_SUCCESS;
 412     }
 413
 414   thread_execute (master, interface_down, oi, 0);
 415
 416   oa = oi->area;
 417   listnode_delete (oi->area->if_list, oi);
 418   oi->area = (struct ospf6_area *) NULL;
 419
 420   /* Withdraw inter-area routes from this area, if necessary */
 421   if (oa->if_list->count == 0)
 422     {
 423       UNSET_FLAG (oa->flag, OSPF6_AREA_ENABLE);
 424       ospf6_abr_disable_area (oa);
 425     }
 426
 427   return CMD_SUCCESS;
 428 }
 429
 430 void
 431 ospf6_show (struct vty *vty, struct ospf6 *o)
 432 {
 433   struct listnode *n;
 434   struct ospf6_area *oa;
 435   char router_id[16], duration[32];
 436   struct timeval now, running;
 437
 438   /* process id, router id */
 439   inet_ntop (AF_INET, &o->router_id, router_id, sizeof (router_id));
 440   vty_out (vty, " OSPFv3 Routing Process (0) with Router-ID %s%s",
 441            router_id, VNL);
 442
 443   /* running time */
 444   gettimeofday (&now, (struct timezone *)NULL);
 445   timersub (&now, &o->starttime, &running);
 446   timerstring (&running, duration, sizeof (duration));
 447   vty_out (vty, " Running %s%s", duration, VNL);
 448
 449   /* Redistribute configuration */
 450   /* XXX */
 451
 452   /* LSAs */
 453   vty_out (vty, " Number of AS scoped LSAs is %u%s",
 454            o->lsdb->count, VNL);
 455
 456   /* Areas */
 457   vty_out (vty, " Number of areas in this router is %u%s",
 458            listcount (o->area_list), VNL);
 459
 460   for (ALL_LIST_ELEMENTS_RO (o->area_list, n, oa))
 461     ospf6_area_show (vty, oa);
 462 }
 463
 464 /* show top level structures */
 465 DEFUN (show_ipv6_ospf6,
 466        show_ipv6_ospf6_cmd,
 467        "show ipv6 ospf6",
 468        SHOW_STR
 469        IP6_STR
 470        OSPF6_STR)
 471 {
 472   OSPF6_CMD_CHECK_RUNNING ();
 473
 474   ospf6_show (vty, ospf6);
 475   return CMD_SUCCESS;
 476 }
 477
 478 DEFUN (show_ipv6_ospf6_route,
 479        show_ipv6_ospf6_route_cmd,
 480        "show ipv6 ospf6 route",
 481        SHOW_STR
 482        IP6_STR
 483        OSPF6_STR
 484        ROUTE_STR
 485        )
 486 {
 487   ospf6_route_table_show (vty, argc, argv, ospf6->route_table);
 488   return CMD_SUCCESS;
 489 }
 490
 491 ALIAS (show_ipv6_ospf6_route,
 492        show_ipv6_ospf6_route_detail_cmd,
 493        "show ipv6 ospf6 route (X:X::X:X|X:X::X:X/M|detail|summary)",
 494        SHOW_STR
 495        IP6_STR
 496        OSPF6_STR
 497        ROUTE_STR
 498        "Specify IPv6 address\n"
 499        "Specify IPv6 prefix\n"
 500        "Detailed information\n"
 501        "Summary of route table\n"
 502        );
 503
 504 DEFUN (show_ipv6_ospf6_route_match,
 505        show_ipv6_ospf6_route_match_cmd,
 506        "show ipv6 ospf6 route X:X::X:X/M match",
 507        SHOW_STR
 508        IP6_STR
 509        OSPF6_STR
 510        ROUTE_STR
 511        "Specify IPv6 prefix\n"
 512        "Display routes which match the specified route\n"
 513        )
 514 {
 515   const char *sargv[CMD_ARGC_MAX];
 516   int i, sargc;
 517
 518   /* copy argv to sargv and then append "match" */
 519   for (i = 0; i < argc; i++)
 520     sargv[i] = argv[i];
 521   sargc = argc;
 522   sargv[sargc++] = "match";
 523   sargv[sargc] = NULL;
 524
 525   ospf6_route_table_show (vty, sargc, sargv, ospf6->route_table);
 526   return CMD_SUCCESS;
 527 }
 528
 529 DEFUN (show_ipv6_ospf6_route_match_detail,
 530        show_ipv6_ospf6_route_match_detail_cmd,
 531        "show ipv6 ospf6 route X:X::X:X/M match detail",
 532        SHOW_STR
 533        IP6_STR
 534        OSPF6_STR
 535        ROUTE_STR
 536        "Specify IPv6 prefix\n"
 537        "Display routes which match the specified route\n"
 538        "Detailed information\n"
 539        )
 540 {
 541   const char *sargv[CMD_ARGC_MAX];
 542   int i, sargc;
 543
 544   /* copy argv to sargv and then append "match" and "detail" */
 545   for (i = 0; i < argc; i++)
 546     sargv[i] = argv[i];
 547   sargc = argc;
 548   sargv[sargc++] = "match";
 549   sargv[sargc++] = "detail";
 550   sargv[sargc] = NULL;
 551
 552   ospf6_route_table_show (vty, sargc, sargv, ospf6->route_table);
 553   return CMD_SUCCESS;
 554 }
 555
 556 ALIAS (show_ipv6_ospf6_route_match,
 557        show_ipv6_ospf6_route_longer_cmd,
 558        "show ipv6 ospf6 route X:X::X:X/M longer",
 559        SHOW_STR
 560        IP6_STR
 561        OSPF6_STR
 562        ROUTE_STR
 563        "Specify IPv6 prefix\n"
 564        "Display routes longer than the specified route\n"
 565        );
 566
 567 DEFUN (show_ipv6_ospf6_route_match_detail,
 568        show_ipv6_ospf6_route_longer_detail_cmd,
 569        "show ipv6 ospf6 route X:X::X:X/M longer detail",
 570        SHOW_STR
 571        IP6_STR
 572        OSPF6_STR
 573        ROUTE_STR
 574        "Specify IPv6 prefix\n"
 575        "Display routes longer than the specified route\n"
 576        "Detailed information\n"
 577        );
 578
 579 ALIAS (show_ipv6_ospf6_route,
 580        show_ipv6_ospf6_route_type_cmd,
 581        "show ipv6 ospf6 route (intra-area|inter-area|external-1|external-2)",
 582        SHOW_STR
 583        IP6_STR
 584        OSPF6_STR
 585        ROUTE_STR
 586        "Dispaly Intra-Area routes\n"
 587        "Dispaly Inter-Area routes\n"
 588        "Dispaly Type-1 External routes\n"
 589        "Dispaly Type-2 External routes\n"
 590        );
 591
 592 DEFUN (show_ipv6_ospf6_route_type_detail,
 593        show_ipv6_ospf6_route_type_detail_cmd,
 594        "show ipv6 ospf6 route (intra-area|inter-area|external-1|external-2) detail",
 595        SHOW_STR
 596        IP6_STR
 597        OSPF6_STR
 598        ROUTE_STR
 599        "Dispaly Intra-Area routes\n"
 600        "Dispaly Inter-Area routes\n"
 601        "Dispaly Type-1 External routes\n"
 602        "Dispaly Type-2 External routes\n"
 603        "Detailed information\n"
 604        )
 605 {
 606   const char *sargv[CMD_ARGC_MAX];
 607   int i, sargc;
 608
 609   /* copy argv to sargv and then append "detail" */
 610   for (i = 0; i < argc; i++)
 611     sargv[i] = argv[i];
 612   sargc = argc;
 613   sargv[sargc++] = "detail";
 614   sargv[sargc] = NULL;
 615
 616   ospf6_route_table_show (vty, sargc, sargv, ospf6->route_table);
 617   return CMD_SUCCESS;
 618 }
 619
 620 /* OSPF configuration write function. */
 621 int
 622 config_write_ospf6 (struct vty *vty)
 623 {
 624   char router_id[16];
 625   struct listnode *j, *k;
 626   struct ospf6_area *oa;
 627   struct ospf6_interface *oi;
 628
 629   /* OSPFv6 configuration. */
 630   if (ospf6 == NULL)
 631     return CMD_SUCCESS;
 632   if (CHECK_FLAG (ospf6->flag, OSPF6_DISABLED))
 633     return CMD_SUCCESS;
 634
 635   inet_ntop (AF_INET, &ospf6->router_id_static, router_id, sizeof (router_id));
 636   vty_out (vty, "router ospf6%s", VNL);
 637   if (ospf6->router_id_static != 0)
 638     vty_out (vty, " router-id %s%s", router_id, VNL);
 639
 640   ospf6_redistribute_config_write (vty);
 641   ospf6_area_config_write (vty);
 642
 643   for (ALL_LIST_ELEMENTS_RO (ospf6->area_list, j, oa))
 644     {
 645       for (ALL_LIST_ELEMENTS_RO (oa->if_list, k, oi))
 646         vty_out (vty, " interface %s area %s%s",
 647                  oi->interface->name, oa->name, VNL);
 648     }
 649   vty_out (vty, "!%s", VNL);
 650   return 0;
 651 }
 652
 653 /* OSPF6 node structure. */
 654 struct cmd_node ospf6_node =
 655 {
 656   OSPF6_NODE,
 657   "%s(config-ospf6)# ",
 658   1 /* VTYSH */
 659 };
 660
 661 /* Install ospf related commands. */
 662 void
 663 ospf6_top_init ()
 664 {
 665   /* Install ospf6 top node. */
 666   install_node (&ospf6_node, config_write_ospf6);
 667
 668   install_element (VIEW_NODE, &show_ipv6_ospf6_cmd);
 669   install_element (ENABLE_NODE, &show_ipv6_ospf6_cmd);
 670   install_element (CONFIG_NODE, &router_ospf6_cmd);
 671
 672   install_element (VIEW_NODE, &show_ipv6_ospf6_route_cmd);
 673   install_element (VIEW_NODE, &show_ipv6_ospf6_route_detail_cmd);
 674   install_element (VIEW_NODE, &show_ipv6_ospf6_route_match_cmd);
 675   install_element (VIEW_NODE, &show_ipv6_ospf6_route_match_detail_cmd);
 676   install_element (VIEW_NODE, &show_ipv6_ospf6_route_longer_cmd);
 677   install_element (VIEW_NODE, &show_ipv6_ospf6_route_longer_detail_cmd);
 678   install_element (VIEW_NODE, &show_ipv6_ospf6_route_type_cmd);
 679   install_element (VIEW_NODE, &show_ipv6_ospf6_route_type_detail_cmd);
 680   install_element (ENABLE_NODE, &show_ipv6_ospf6_route_cmd);
 681   install_element (ENABLE_NODE, &show_ipv6_ospf6_route_detail_cmd);
 682   install_element (ENABLE_NODE, &show_ipv6_ospf6_route_match_cmd);
 683   install_element (ENABLE_NODE, &show_ipv6_ospf6_route_match_detail_cmd);
 684   install_element (ENABLE_NODE, &show_ipv6_ospf6_route_longer_cmd);
 685   install_element (ENABLE_NODE, &show_ipv6_ospf6_route_longer_detail_cmd);
 686   install_element (ENABLE_NODE, &show_ipv6_ospf6_route_type_cmd);
 687   install_element (ENABLE_NODE, &show_ipv6_ospf6_route_type_detail_cmd);
 688
 689   install_default (OSPF6_NODE);
 690   install_element (OSPF6_NODE, &ospf6_router_id_cmd);
 691   install_element (OSPF6_NODE, &ospf6_interface_area_cmd);
 692   install_element (OSPF6_NODE, &no_ospf6_interface_area_cmd);
 693   install_element (OSPF6_NODE, &no_router_ospf6_cmd);
 694 }
 695
 696