2 * Area Border Router function.
3 * Copyright (C) 2004 Yasuhiro Ohara
5 * This file is part of GNU Zebra.
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
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.
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.
35 #include "ospf6_proto.h"
36 #include "ospf6_route.h"
37 #include "ospf6_lsa.h"
38 #include "ospf6_route.h"
39 #include "ospf6_lsdb.h"
40 #include "ospf6_message.h"
42 #include "ospf6_top.h"
43 #include "ospf6_area.h"
44 #include "ospf6_interface.h"
45 #include "ospf6_neighbor.h"
47 #include "ospf6_flood.h"
48 #include "ospf6_intra.h"
49 #include "ospf6_abr.h"
52 unsigned char conf_debug_ospf6_abr;
55 ospf6_is_router_abr (struct ospf6 *o)
57 struct listnode *node;
58 struct ospf6_area *oa;
61 for (ALL_LIST_ELEMENTS_RO (o->area_list, node, oa))
62 if (IS_AREA_ENABLED (oa))
71 ospf6_abr_enable_area (struct ospf6_area *area)
73 struct ospf6_area *oa;
74 struct ospf6_route *ro;
75 struct listnode *node, *nnode;
77 for (ALL_LIST_ELEMENTS (area->ospf6->area_list, node, nnode, oa))
79 /* update B bit for each area */
80 OSPF6_ROUTER_LSA_SCHEDULE (oa);
82 /* install other area's configured address range */
85 for (ro = ospf6_route_head (oa->range_table); ro;
86 ro = ospf6_route_next (ro))
88 if (CHECK_FLAG (ro->flag, OSPF6_ROUTE_ACTIVE_SUMMARY))
89 ospf6_abr_originate_summary_to_area (ro, area);
94 /* install calculated routes to border routers */
95 for (ro = ospf6_route_head (area->ospf6->brouter_table); ro;
96 ro = ospf6_route_next (ro))
97 ospf6_abr_originate_summary_to_area (ro, area);
99 /* install calculated routes to network (may be rejected by ranges) */
100 for (ro = ospf6_route_head (area->ospf6->route_table); ro;
101 ro = ospf6_route_next (ro))
102 ospf6_abr_originate_summary_to_area (ro, area);
106 ospf6_abr_disable_area (struct ospf6_area *area)
108 struct ospf6_area *oa;
109 struct ospf6_route *ro, *nro;
110 struct ospf6_lsa *old;
111 struct listnode *node, *nnode;
113 /* Withdraw all summary prefixes previously originated */
114 for (ro = ospf6_route_head (area->summary_prefix); ro; ro = nro)
116 nro = ospf6_route_next (ro);
117 old = ospf6_lsdb_lookup (ro->path.origin.type, ro->path.origin.id,
118 area->ospf6->router_id, area->lsdb);
120 ospf6_lsa_purge (old);
121 ospf6_route_remove (ro, area->summary_prefix);
124 /* Withdraw all summary router-routes previously originated */
125 for (ro = ospf6_route_head (area->summary_router); ro; ro = nro)
127 nro = ospf6_route_next (ro);
128 old = ospf6_lsdb_lookup (ro->path.origin.type, ro->path.origin.id,
129 area->ospf6->router_id, area->lsdb);
131 ospf6_lsa_purge (old);
132 ospf6_route_remove (ro, area->summary_router);
135 /* Schedule Router-LSA for each area (ABR status may change) */
136 for (ALL_LIST_ELEMENTS (area->ospf6->area_list, node, nnode, oa))
137 /* update B bit for each area */
138 OSPF6_ROUTER_LSA_SCHEDULE (oa);
141 /* RFC 2328 12.4.3. Summary-LSAs */
143 ospf6_abr_originate_summary_to_area (struct ospf6_route *route,
144 struct ospf6_area *area)
146 struct ospf6_lsa *lsa, *old = NULL;
147 struct ospf6_interface *oi;
148 struct ospf6_route *summary, *range = NULL;
149 struct ospf6_area *route_area;
150 char buffer[OSPF6_MAX_LSASIZE];
151 struct ospf6_lsa_header *lsa_header;
153 struct ospf6_inter_prefix_lsa *prefix_lsa;
154 struct ospf6_inter_router_lsa *router_lsa;
155 struct ospf6_route_table *summary_table = NULL;
160 if (route->type == OSPF6_DEST_TYPE_ROUTER)
162 if (IS_OSPF6_DEBUG_ABR || IS_OSPF6_DEBUG_ORIGINATE (INTER_ROUTER))
165 inet_ntop (AF_INET, &(ADV_ROUTER_IN_PREFIX (&route->prefix)),
167 zlog_debug ("Originating summary in area %s for ASBR %s",
170 summary_table = area->summary_router;
174 if (IS_OSPF6_DEBUG_ABR || IS_OSPF6_DEBUG_ORIGINATE (INTER_PREFIX))
177 prefix2str (&route->prefix, buf, sizeof (buf));
178 zlog_debug ("Originating summary in area %s for %s",
181 summary_table = area->summary_prefix;
184 summary = ospf6_route_lookup (&route->prefix, summary_table);
186 old = ospf6_lsdb_lookup (summary->path.origin.type,
187 summary->path.origin.id,
188 area->ospf6->router_id, area->lsdb);
190 /* if this route has just removed, remove corresponding LSA */
191 if (CHECK_FLAG (route->flag, OSPF6_ROUTE_REMOVE))
194 zlog_debug ("The route has just removed, purge previous LSA");
196 ospf6_route_remove (summary, summary_table);
198 ospf6_lsa_purge (old);
202 /* Only destination type network, range or ASBR are considered */
203 if (route->type != OSPF6_DEST_TYPE_NETWORK &&
204 route->type != OSPF6_DEST_TYPE_RANGE &&
205 (route->type != OSPF6_DEST_TYPE_ROUTER ||
206 ! CHECK_FLAG (route->path.router_bits, OSPF6_ROUTER_BIT_E)))
209 zlog_debug ("Route type is none of network, range nor ASBR, withdraw");
211 ospf6_route_remove (summary, summary_table);
213 ospf6_lsa_purge (old);
217 /* AS External routes are never considered */
218 if (route->path.type == OSPF6_PATH_TYPE_EXTERNAL1 ||
219 route->path.type == OSPF6_PATH_TYPE_EXTERNAL2)
222 zlog_debug ("Path type is external, withdraw");
224 ospf6_route_remove (summary, summary_table);
226 ospf6_lsa_purge (old);
230 /* do not generate if the path's area is the same as target area */
231 if (route->path.area_id == area->area_id)
234 zlog_debug ("The route is in the area itself, ignore");
236 ospf6_route_remove (summary, summary_table);
238 ospf6_lsa_purge (old);
242 /* do not generate if the nexthops belongs to the target area */
243 oi = ospf6_interface_lookup_by_ifindex (route->nexthop[0].ifindex);
244 if (oi && oi->area && oi->area == area)
247 zlog_debug ("The route's nexthop is in the same area, ignore");
249 ospf6_route_remove (summary, summary_table);
251 ospf6_lsa_purge (old);
255 /* do not generate if the route cost is greater or equal to LSInfinity */
256 if (route->path.cost >= OSPF_LS_INFINITY)
259 zlog_debug ("The cost exceeds LSInfinity, withdraw");
261 ospf6_route_remove (summary, summary_table);
263 ospf6_lsa_purge (old);
267 /* if this is a route to ASBR */
268 if (route->type == OSPF6_DEST_TYPE_ROUTER)
270 /* Only the prefered best path is considered */
271 if (! CHECK_FLAG (route->flag, OSPF6_ROUTE_BEST))
274 zlog_debug ("This is the secondary path to the ASBR, ignore");
276 ospf6_route_remove (summary, summary_table);
278 ospf6_lsa_purge (old);
282 /* Do not generate if the area is stub */
286 /* if this is an intra-area route, this may be suppressed by aggregation */
287 if (route->type == OSPF6_DEST_TYPE_NETWORK &&
288 route->path.type == OSPF6_PATH_TYPE_INTRA)
290 /* search for configured address range for the route's area */
291 route_area = ospf6_area_lookup (route->path.area_id, area->ospf6);
293 range = ospf6_route_lookup_bestmatch (&route->prefix,
294 route_area->range_table);
296 /* ranges are ignored when originate backbone routes to transit area.
297 Otherwise, if ranges are configured, the route is suppressed. */
298 if (range && ! CHECK_FLAG (range->flag, OSPF6_ROUTE_REMOVE) &&
299 (route->path.area_id != OSPF_AREA_BACKBONE ||
300 ! IS_AREA_TRANSIT (area)))
304 prefix2str (&range->prefix, buf, sizeof (buf));
305 zlog_debug ("Suppressed by range %s of area %s",
306 buf, route_area->name);
310 ospf6_route_remove (summary, summary_table);
312 ospf6_lsa_purge (old);
317 /* If this is a configured address range */
318 if (route->type == OSPF6_DEST_TYPE_RANGE)
320 /* If DoNotAdvertise is set */
321 if (CHECK_FLAG (route->flag, OSPF6_ROUTE_DO_NOT_ADVERTISE))
324 zlog_debug ("This is the range with DoNotAdvertise set. ignore");
326 ospf6_route_remove (summary, summary_table);
328 ospf6_lsa_purge (old);
332 /* Whether the route have active longer prefix */
333 if (! CHECK_FLAG (route->flag, OSPF6_ROUTE_ACTIVE_SUMMARY))
336 zlog_debug ("The range is not active. withdraw");
338 ospf6_route_remove (summary, summary_table);
340 ospf6_lsa_purge (old);
345 /* Check export list */
346 if (EXPORT_NAME (area))
348 if (EXPORT_LIST (area) == NULL)
350 access_list_lookup (AFI_IP6, EXPORT_NAME (area));
352 if (EXPORT_LIST (area))
353 if (access_list_apply (EXPORT_LIST (area),
354 &route->prefix) == FILTER_DENY)
358 inet_ntop (AF_INET, &(ADV_ROUTER_IN_PREFIX (&route->prefix)),
360 zlog_debug ("prefix %s was denied by export list", buf);
366 /* Check filter-list */
367 if (PREFIX_NAME_OUT (area))
369 if (PREFIX_LIST_OUT (area) == NULL)
370 PREFIX_LIST_OUT (area) =
371 prefix_list_lookup(AFI_IP6, PREFIX_NAME_OUT (area));
373 if (PREFIX_LIST_OUT (area))
374 if (prefix_list_apply (PREFIX_LIST_OUT (area),
375 &route->prefix) != PREFIX_PERMIT)
379 inet_ntop (AF_INET, &(ADV_ROUTER_IN_PREFIX (&route->prefix)),
381 zlog_debug ("prefix %s was denied by filter-list out", buf);
387 /* the route is going to be originated. store it in area's summary_table */
390 summary = ospf6_route_copy (route);
391 if (route->type == OSPF6_DEST_TYPE_NETWORK ||
392 route->type == OSPF6_DEST_TYPE_RANGE)
393 summary->path.origin.type = htons (OSPF6_LSTYPE_INTER_PREFIX);
395 summary->path.origin.type = htons (OSPF6_LSTYPE_INTER_ROUTER);
396 summary->path.origin.adv_router = area->ospf6->router_id;
397 summary->path.origin.id =
398 ospf6_new_ls_id (summary->path.origin.type,
399 summary->path.origin.adv_router, area->lsdb);
400 summary = ospf6_route_add (summary, summary_table);
404 summary->type = route->type;
405 quagga_gettime (QUAGGA_CLK_MONOTONIC, &summary->changed);
408 summary->path.router_bits = route->path.router_bits;
409 summary->path.options[0] = route->path.options[0];
410 summary->path.options[1] = route->path.options[1];
411 summary->path.options[2] = route->path.options[2];
412 summary->path.prefix_options = route->path.prefix_options;
413 summary->path.area_id = area->area_id;
414 summary->path.type = OSPF6_PATH_TYPE_INTER;
415 summary->path.cost = route->path.cost;
416 summary->nexthop[0] = route->nexthop[0];
419 memset (buffer, 0, sizeof (buffer));
420 lsa_header = (struct ospf6_lsa_header *) buffer;
422 if (route->type == OSPF6_DEST_TYPE_ROUTER)
424 router_lsa = (struct ospf6_inter_router_lsa *)
425 ((caddr_t) lsa_header + sizeof (struct ospf6_lsa_header));
426 p = (caddr_t) router_lsa + sizeof (struct ospf6_inter_router_lsa);
428 /* Fill Inter-Area-Router-LSA */
429 router_lsa->options[0] = route->path.options[0];
430 router_lsa->options[1] = route->path.options[1];
431 router_lsa->options[2] = route->path.options[2];
432 OSPF6_ABR_SUMMARY_METRIC_SET (router_lsa, route->path.cost);
433 router_lsa->router_id = ADV_ROUTER_IN_PREFIX (&route->prefix);
434 type = htons (OSPF6_LSTYPE_INTER_ROUTER);
438 prefix_lsa = (struct ospf6_inter_prefix_lsa *)
439 ((caddr_t) lsa_header + sizeof (struct ospf6_lsa_header));
440 p = (caddr_t) prefix_lsa + sizeof (struct ospf6_inter_prefix_lsa);
442 /* Fill Inter-Area-Prefix-LSA */
443 OSPF6_ABR_SUMMARY_METRIC_SET (prefix_lsa, route->path.cost);
444 prefix_lsa->prefix.prefix_length = route->prefix.prefixlen;
445 prefix_lsa->prefix.prefix_options = route->path.prefix_options;
448 memcpy (p, &route->prefix.u.prefix6,
449 OSPF6_PREFIX_SPACE (route->prefix.prefixlen));
450 ospf6_prefix_apply_mask (&prefix_lsa->prefix);
451 p += OSPF6_PREFIX_SPACE (route->prefix.prefixlen);
452 type = htons (OSPF6_LSTYPE_INTER_PREFIX);
455 /* Fill LSA Header */
457 lsa_header->type = type;
458 lsa_header->id = summary->path.origin.id;
459 lsa_header->adv_router = area->ospf6->router_id;
461 ospf6_new_ls_seqnum (lsa_header->type, lsa_header->id,
462 lsa_header->adv_router, area->lsdb);
463 lsa_header->length = htons ((caddr_t) p - (caddr_t) lsa_header);
466 ospf6_lsa_checksum (lsa_header);
469 lsa = ospf6_lsa_create (lsa_header);
472 ospf6_lsa_originate_area (lsa, area);
476 ospf6_abr_range_update (struct ospf6_route *range)
479 struct ospf6_route *ro;
481 assert (range->type == OSPF6_DEST_TYPE_RANGE);
483 /* update range's cost and active flag */
484 for (ro = ospf6_route_match_head (&range->prefix, ospf6->route_table);
485 ro; ro = ospf6_route_match_next (&range->prefix, ro))
487 if (ro->path.area_id == range->path.area_id &&
488 ! CHECK_FLAG (ro->flag, OSPF6_ROUTE_REMOVE))
489 cost = MAX (cost, ro->path.cost);
492 if (range->path.cost != cost)
494 range->path.cost = cost;
496 if (range->path.cost)
497 SET_FLAG (range->flag, OSPF6_ROUTE_ACTIVE_SUMMARY);
499 UNSET_FLAG (range->flag, OSPF6_ROUTE_ACTIVE_SUMMARY);
501 ospf6_abr_originate_summary (range);
506 ospf6_abr_originate_summary (struct ospf6_route *route)
508 struct listnode *node, *nnode;
509 struct ospf6_area *oa;
510 struct ospf6_route *range = NULL;
512 if (route->type == OSPF6_DEST_TYPE_NETWORK)
514 oa = ospf6_area_lookup (route->path.area_id, ospf6);
515 range = ospf6_route_lookup_bestmatch (&route->prefix, oa->range_table);
517 ospf6_abr_range_update (range);
520 for (ALL_LIST_ELEMENTS (ospf6->area_list, node, nnode, oa))
521 ospf6_abr_originate_summary_to_area (route, oa);
524 /* RFC 2328 16.2. Calculating the inter-area routes */
526 ospf6_abr_examin_summary (struct ospf6_lsa *lsa, struct ospf6_area *oa)
528 struct prefix prefix, abr_prefix;
529 struct ospf6_route_table *table = NULL;
530 struct ospf6_route *range, *route, *old = NULL;
531 struct ospf6_route *abr_entry;
533 char options[3] = {0, 0, 0};
534 u_int8_t prefix_options = 0;
536 u_char router_bits = 0;
540 struct ospf6_inter_prefix_lsa *prefix_lsa = NULL;
541 struct ospf6_inter_router_lsa *router_lsa = NULL;
543 memset (&prefix, 0, sizeof (prefix));
545 if (lsa->header->type == htons (OSPF6_LSTYPE_INTER_PREFIX))
547 if (IS_OSPF6_DEBUG_EXAMIN (INTER_PREFIX))
550 zlog_debug ("Examin %s in area %s", lsa->name, oa->name);
553 prefix_lsa = (struct ospf6_inter_prefix_lsa *)
554 OSPF6_LSA_HEADER_END (lsa->header);
555 prefix.family = AF_INET6;
556 prefix.prefixlen = prefix_lsa->prefix.prefix_length;
557 ospf6_prefix_in6_addr (&prefix.u.prefix6, &prefix_lsa->prefix);
559 prefix2str (&prefix, buf, sizeof (buf));
560 table = oa->ospf6->route_table;
561 type = OSPF6_DEST_TYPE_NETWORK;
562 prefix_options = prefix_lsa->prefix.prefix_options;
563 cost = OSPF6_ABR_SUMMARY_METRIC (prefix_lsa);
565 else if (lsa->header->type == htons (OSPF6_LSTYPE_INTER_ROUTER))
567 if (IS_OSPF6_DEBUG_EXAMIN (INTER_ROUTER))
570 zlog_debug ("Examin %s in area %s", lsa->name, oa->name);
573 router_lsa = (struct ospf6_inter_router_lsa *)
574 OSPF6_LSA_HEADER_END (lsa->header);
575 ospf6_linkstate_prefix (router_lsa->router_id, htonl (0), &prefix);
577 inet_ntop (AF_INET, &router_lsa->router_id, buf, sizeof (buf));
578 table = oa->ospf6->brouter_table;
579 type = OSPF6_DEST_TYPE_ROUTER;
580 options[0] = router_lsa->options[0];
581 options[1] = router_lsa->options[1];
582 options[2] = router_lsa->options[2];
583 cost = OSPF6_ABR_SUMMARY_METRIC (router_lsa);
584 SET_FLAG (router_bits, OSPF6_ROUTER_BIT_E);
589 /* Find existing route */
590 route = ospf6_route_lookup (&prefix, table);
592 ospf6_route_lock (route);
593 while (route && ospf6_route_is_prefix (&prefix, route))
595 if (route->path.area_id == oa->area_id &&
596 route->path.origin.type == lsa->header->type &&
597 route->path.origin.id == lsa->header->id &&
598 route->path.origin.adv_router == lsa->header->adv_router &&
599 ! CHECK_FLAG (route->flag, OSPF6_ROUTE_WAS_REMOVED))
601 route = ospf6_route_next (route);
604 /* (1) if cost == LSInfinity or if the LSA is MaxAge */
605 if (cost == OSPF_LS_INFINITY)
608 zlog_debug ("cost is LS_INFINITY, ignore");
610 ospf6_route_remove (old, table);
613 if (OSPF6_LSA_IS_MAXAGE (lsa))
616 zlog_debug ("LSA is MaxAge, ignore");
618 ospf6_route_remove (old, table);
622 /* (2) if the LSA is self-originated, ignore */
623 if (lsa->header->adv_router == oa->ospf6->router_id)
626 zlog_debug ("LSA is self-originated, ignore");
628 ospf6_route_remove (old, table);
632 /* (3) if the prefix is equal to an active configured address range */
633 /* or if the NU bit is set in the prefix */
634 if (lsa->header->type == htons (OSPF6_LSTYPE_INTER_PREFIX))
636 range = ospf6_route_lookup (&prefix, oa->range_table);
640 zlog_debug ("Prefix is equal to address range, ignore");
642 ospf6_route_remove (old, table);
646 if (CHECK_FLAG (prefix_lsa->prefix.prefix_options,
647 OSPF6_PREFIX_OPTION_NU) ||
648 CHECK_FLAG (prefix_lsa->prefix.prefix_options,
649 OSPF6_PREFIX_OPTION_LA))
652 zlog_debug ("Prefix has NU/LA bit set, ignore");
654 ospf6_route_remove (old, table);
659 if (lsa->header->type == htons (OSPF6_LSTYPE_INTER_ROUTER))
661 /* To pass test suites */
662 if (! OSPF6_OPT_ISSET (router_lsa->options, OSPF6_OPT_R) ||
663 ! OSPF6_OPT_ISSET (router_lsa->options, OSPF6_OPT_V6))
666 zlog_debug ("Prefix has NU/LA bit set, ignore");
668 ospf6_route_remove (old, table);
673 /* (4) if the routing table entry for the ABR does not exist */
674 ospf6_linkstate_prefix (lsa->header->adv_router, htonl (0), &abr_prefix);
675 abr_entry = ospf6_route_lookup (&abr_prefix, oa->ospf6->brouter_table);
676 if (abr_entry == NULL || abr_entry->path.area_id != oa->area_id ||
677 CHECK_FLAG (abr_entry->flag, OSPF6_ROUTE_REMOVE) ||
678 ! CHECK_FLAG (abr_entry->path.router_bits, OSPF6_ROUTER_BIT_B))
681 zlog_debug ("ABR router entry does not exist, ignore");
683 ospf6_route_remove (old, table);
687 /* Check import list */
688 if (IMPORT_NAME (oa))
690 if (IMPORT_LIST (oa) == NULL)
691 IMPORT_LIST (oa) = access_list_lookup (AFI_IP6, IMPORT_NAME (oa));
693 if (IMPORT_LIST (oa))
694 if (access_list_apply (IMPORT_LIST (oa), &prefix) == FILTER_DENY)
697 zlog_debug ("Prefix was denied by import-list");
699 ospf6_route_remove (old, table);
704 /* Check input prefix-list */
705 if (PREFIX_NAME_IN (oa))
707 if (PREFIX_LIST_IN (oa) == NULL)
708 PREFIX_LIST_IN (oa) = prefix_list_lookup (AFI_IP6, PREFIX_NAME_IN (oa));
710 if (PREFIX_LIST_IN (oa))
711 if (prefix_list_apply (PREFIX_LIST_IN (oa), &prefix) != PREFIX_PERMIT)
714 zlog_debug ("Prefix was denied by prefix-list");
716 ospf6_route_remove (old, table);
721 /* (5),(6),(7) the path preference is handled by the sorting
722 in the routing table. Always install the path by substituting
723 old route (if any). */
725 route = ospf6_route_copy (old);
727 route = ospf6_route_create ();
730 route->prefix = prefix;
731 route->path.origin.type = lsa->header->type;
732 route->path.origin.id = lsa->header->id;
733 route->path.origin.adv_router = lsa->header->adv_router;
734 route->path.router_bits = router_bits;
735 route->path.options[0] = options[0];
736 route->path.options[1] = options[1];
737 route->path.options[2] = options[2];
738 route->path.prefix_options = prefix_options;
739 route->path.area_id = oa->area_id;
740 route->path.type = OSPF6_PATH_TYPE_INTER;
741 route->path.cost = abr_entry->path.cost + cost;
742 for (i = 0; i < OSPF6_MULTI_PATH_LIMIT; i++)
743 route->nexthop[i] = abr_entry->nexthop[i];
746 zlog_debug ("Install route: %s", buf);
747 ospf6_route_add (route, table);
751 ospf6_abr_examin_brouter (u_int32_t router_id)
753 struct ospf6_lsa *lsa;
754 struct ospf6_area *oa;
755 struct listnode *node, *nnode;
758 for (ALL_LIST_ELEMENTS (ospf6->area_list, node, nnode, oa))
760 type = htons (OSPF6_LSTYPE_INTER_ROUTER);
761 for (lsa = ospf6_lsdb_type_router_head (type, router_id, oa->lsdb); lsa;
762 lsa = ospf6_lsdb_type_router_next (type, router_id, lsa))
763 ospf6_abr_examin_summary (lsa, oa);
765 type = htons (OSPF6_LSTYPE_INTER_PREFIX);
766 for (lsa = ospf6_lsdb_type_router_head (type, router_id, oa->lsdb); lsa;
767 lsa = ospf6_lsdb_type_router_next (type, router_id, lsa))
768 ospf6_abr_examin_summary (lsa, oa);
773 ospf6_abr_reimport (struct ospf6_area *oa)
775 struct ospf6_lsa *lsa;
778 type = htons (OSPF6_LSTYPE_INTER_ROUTER);
779 for (lsa = ospf6_lsdb_type_head (type, oa->lsdb); lsa;
780 lsa = ospf6_lsdb_type_next (type, lsa))
781 ospf6_abr_examin_summary (lsa, oa);
783 type = htons (OSPF6_LSTYPE_INTER_PREFIX);
784 for (lsa = ospf6_lsdb_type_head (type, oa->lsdb); lsa;
785 lsa = ospf6_lsdb_type_next (type, lsa))
786 ospf6_abr_examin_summary (lsa, oa);
791 /* Display functions */
793 ospf6_inter_area_prefix_lsa_get_prefix_str (struct ospf6_lsa *lsa, char *buf,
796 struct ospf6_inter_prefix_lsa *prefix_lsa;
801 prefix_lsa = (struct ospf6_inter_prefix_lsa *)
802 OSPF6_LSA_HEADER_END (lsa->header);
804 ospf6_prefix_in6_addr (&in6, &prefix_lsa->prefix);
807 inet_ntop (AF_INET6, &in6, buf, buflen);
808 sprintf (&buf[strlen(buf)], "/%d", prefix_lsa->prefix.prefix_length);
816 ospf6_inter_area_prefix_lsa_show (struct vty *vty, struct ospf6_lsa *lsa)
818 struct ospf6_inter_prefix_lsa *prefix_lsa;
819 char buf[INET6_ADDRSTRLEN];
821 prefix_lsa = (struct ospf6_inter_prefix_lsa *)
822 OSPF6_LSA_HEADER_END (lsa->header);
824 vty_out (vty, " Metric: %lu%s",
825 (u_long) OSPF6_ABR_SUMMARY_METRIC (prefix_lsa), VNL);
827 ospf6_prefix_options_printbuf (prefix_lsa->prefix.prefix_options,
829 vty_out (vty, " Prefix Options: %s%s", buf, VNL);
831 vty_out (vty, " Prefix: %s%s",
832 ospf6_inter_area_prefix_lsa_get_prefix_str (lsa, buf, sizeof(buf),
839 ospf6_inter_area_router_lsa_get_prefix_str (struct ospf6_lsa *lsa, char *buf,
842 struct ospf6_inter_router_lsa *router_lsa;
846 router_lsa = (struct ospf6_inter_router_lsa *)
847 OSPF6_LSA_HEADER_END (lsa->header);
851 inet_ntop (AF_INET, &router_lsa->router_id, buf, buflen);
858 ospf6_inter_area_router_lsa_show (struct vty *vty, struct ospf6_lsa *lsa)
860 struct ospf6_inter_router_lsa *router_lsa;
863 router_lsa = (struct ospf6_inter_router_lsa *)
864 OSPF6_LSA_HEADER_END (lsa->header);
866 ospf6_options_printbuf (router_lsa->options, buf, sizeof (buf));
867 vty_out (vty, " Options: %s%s", buf, VNL);
868 vty_out (vty, " Metric: %lu%s",
869 (u_long) OSPF6_ABR_SUMMARY_METRIC (router_lsa), VNL);
871 inet_ntop (AF_INET, &router_lsa->router_id, buf, sizeof (buf));
872 vty_out (vty, " Destination Router ID: %s%s", buf, VNL);
878 DEFUN (debug_ospf6_abr,
883 "Debug OSPFv3 ABR function\n"
886 OSPF6_DEBUG_ABR_ON ();
890 DEFUN (no_debug_ospf6_abr,
891 no_debug_ospf6_abr_cmd,
892 "no debug ospf6 abr",
896 "Debug OSPFv3 ABR function\n"
899 OSPF6_DEBUG_ABR_OFF ();
904 config_write_ospf6_debug_abr (struct vty *vty)
906 if (IS_OSPF6_DEBUG_ABR)
907 vty_out (vty, "debug ospf6 abr%s", VNL);
912 install_element_ospf6_debug_abr (void)
914 install_element (ENABLE_NODE, &debug_ospf6_abr_cmd);
915 install_element (ENABLE_NODE, &no_debug_ospf6_abr_cmd);
916 install_element (CONFIG_NODE, &debug_ospf6_abr_cmd);
917 install_element (CONFIG_NODE, &no_debug_ospf6_abr_cmd);
920 struct ospf6_lsa_handler inter_prefix_handler =
922 OSPF6_LSTYPE_INTER_PREFIX,
925 ospf6_inter_area_prefix_lsa_show,
926 ospf6_inter_area_prefix_lsa_get_prefix_str,
929 struct ospf6_lsa_handler inter_router_handler =
931 OSPF6_LSTYPE_INTER_ROUTER,
934 ospf6_inter_area_router_lsa_show,
935 ospf6_inter_area_router_lsa_get_prefix_str,
939 ospf6_abr_init (void)
941 ospf6_install_lsa_handler (&inter_prefix_handler);
942 ospf6_install_lsa_handler (&inter_router_handler);