2 * Copyright (C) 2003 Yasuhiro Ohara
4 * This file is part of GNU Zebra.
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
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.
16 * You should have received a copy of the GNU General Public License along
17 * with this program; see the file COPYING; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
34 #include "ospf6_proto.h"
35 #include "ospf6_lsa.h"
36 #include "ospf6_lsdb.h"
37 #include "ospf6_route.h"
38 #include "ospf6_zebra.h"
39 #include "ospf6_message.h"
41 #include "ospf6_top.h"
42 #include "ospf6_area.h"
43 #include "ospf6_interface.h"
44 #include "ospf6_neighbor.h"
45 #include "ospf6_asbr.h"
46 #include "ospf6_intra.h"
47 #include "ospf6_flood.h"
50 unsigned char conf_debug_ospf6_asbr
= 0;
52 #define ZROUTE_NAME(x) zebra_route_string(x)
54 /* AS External LSA origination */
55 static void ospf6_as_external_lsa_originate(struct ospf6_route
*route
)
57 char buffer
[OSPF6_MAX_LSASIZE
];
58 struct ospf6_lsa_header
*lsa_header
;
59 struct ospf6_lsa
*lsa
;
60 struct ospf6_external_info
*info
= route
->route_option
;
62 struct ospf6_as_external_lsa
*as_external_lsa
;
63 char buf
[PREFIX2STR_BUFFER
];
66 if (IS_OSPF6_DEBUG_ASBR
|| IS_OSPF6_DEBUG_ORIGINATE(AS_EXTERNAL
)) {
67 prefix2str(&route
->prefix
, buf
, sizeof(buf
));
68 zlog_debug("Originate AS-External-LSA for %s", buf
);
72 memset(buffer
, 0, sizeof(buffer
));
73 lsa_header
= (struct ospf6_lsa_header
*)buffer
;
74 as_external_lsa
= (struct ospf6_as_external_lsa
75 *)((caddr_t
)lsa_header
76 + sizeof(struct ospf6_lsa_header
));
77 p
= (caddr_t
)((caddr_t
)as_external_lsa
78 + sizeof(struct ospf6_as_external_lsa
));
80 /* Fill AS-External-LSA */
82 if (route
->path
.metric_type
== 2)
83 SET_FLAG(as_external_lsa
->bits_metric
, OSPF6_ASBR_BIT_E
);
85 UNSET_FLAG(as_external_lsa
->bits_metric
, OSPF6_ASBR_BIT_E
);
87 /* forwarding address */
88 if (!IN6_IS_ADDR_UNSPECIFIED(&info
->forwarding
))
89 SET_FLAG(as_external_lsa
->bits_metric
, OSPF6_ASBR_BIT_F
);
91 UNSET_FLAG(as_external_lsa
->bits_metric
, OSPF6_ASBR_BIT_F
);
93 /* external route tag */
95 SET_FLAG(as_external_lsa
->bits_metric
, OSPF6_ASBR_BIT_T
);
97 UNSET_FLAG(as_external_lsa
->bits_metric
, OSPF6_ASBR_BIT_T
);
100 OSPF6_ASBR_METRIC_SET(as_external_lsa
, route
->path
.cost
);
103 as_external_lsa
->prefix
.prefix_length
= route
->prefix
.prefixlen
;
106 as_external_lsa
->prefix
.prefix_options
= route
->path
.prefix_options
;
108 /* don't use refer LS-type */
109 as_external_lsa
->prefix
.prefix_refer_lstype
= htons(0);
112 memcpy(p
, &route
->prefix
.u
.prefix6
,
113 OSPF6_PREFIX_SPACE(route
->prefix
.prefixlen
));
114 ospf6_prefix_apply_mask(&as_external_lsa
->prefix
);
115 p
+= OSPF6_PREFIX_SPACE(route
->prefix
.prefixlen
);
117 /* Forwarding address */
118 if (CHECK_FLAG(as_external_lsa
->bits_metric
, OSPF6_ASBR_BIT_F
)) {
119 memcpy(p
, &info
->forwarding
, sizeof(struct in6_addr
));
120 p
+= sizeof(struct in6_addr
);
123 /* External Route Tag */
124 if (CHECK_FLAG(as_external_lsa
->bits_metric
, OSPF6_ASBR_BIT_T
)) {
125 route_tag_t network_order
= htonl(info
->tag
);
127 memcpy(p
, &network_order
, sizeof(network_order
));
128 p
+= sizeof(network_order
);
131 /* Fill LSA Header */
133 lsa_header
->type
= htons(OSPF6_LSTYPE_AS_EXTERNAL
);
134 lsa_header
->id
= route
->path
.origin
.id
;
135 lsa_header
->adv_router
= ospf6
->router_id
;
137 ospf6_new_ls_seqnum(lsa_header
->type
, lsa_header
->id
,
138 lsa_header
->adv_router
, ospf6
->lsdb
);
139 lsa_header
->length
= htons((caddr_t
)p
- (caddr_t
)lsa_header
);
142 ospf6_lsa_checksum(lsa_header
);
145 lsa
= ospf6_lsa_create(lsa_header
);
148 ospf6_lsa_originate_process(lsa
, ospf6
);
151 int ospf6_orig_as_external_lsa(struct thread
*thread
)
153 struct ospf6_interface
*oi
;
154 struct ospf6_lsa
*lsa
;
155 uint32_t type
, adv_router
;
157 oi
= (struct ospf6_interface
*)THREAD_ARG(thread
);
158 oi
->thread_as_extern_lsa
= NULL
;
160 if (oi
->state
== OSPF6_INTERFACE_DOWN
)
163 type
= htons(OSPF6_LSTYPE_AS_EXTERNAL
);
164 adv_router
= oi
->area
->ospf6
->router_id
;
165 for (ALL_LSDB_TYPED_ADVRTR(ospf6
->lsdb
, type
, adv_router
, lsa
)) {
166 if (IS_OSPF6_DEBUG_ASBR
)
168 "%s: Send update of AS-External LSA %s seq 0x%x",
169 __PRETTY_FUNCTION__
, lsa
->name
,
170 ntohl(lsa
->header
->seqnum
));
172 ospf6_flood_interface(NULL
, lsa
, oi
);
178 static route_tag_t
ospf6_as_external_lsa_get_tag(struct ospf6_lsa
*lsa
)
180 struct ospf6_as_external_lsa
*external
;
181 ptrdiff_t tag_offset
;
182 route_tag_t network_order
;
187 external
= (struct ospf6_as_external_lsa
*)OSPF6_LSA_HEADER_END(
190 if (!CHECK_FLAG(external
->bits_metric
, OSPF6_ASBR_BIT_T
))
193 tag_offset
= sizeof(*external
)
194 + OSPF6_PREFIX_SPACE(external
->prefix
.prefix_length
);
195 if (CHECK_FLAG(external
->bits_metric
, OSPF6_ASBR_BIT_F
))
196 tag_offset
+= sizeof(struct in6_addr
);
198 memcpy(&network_order
, (caddr_t
)external
+ tag_offset
,
199 sizeof(network_order
));
200 return ntohl(network_order
);
203 void ospf6_asbr_update_route_ecmp_path(struct ospf6_route
*old
,
204 struct ospf6_route
*route
)
206 struct ospf6_route
*old_route
;
207 struct ospf6_path
*ecmp_path
, *o_path
= NULL
;
208 struct listnode
*anode
, *anext
;
209 struct listnode
*nnode
, *rnode
, *rnext
;
210 struct ospf6_nexthop
*nh
, *rnh
;
211 char buf
[PREFIX2STR_BUFFER
];
212 bool route_found
= false;
214 /* check for old entry match with new route origin,
217 for (old_route
= old
; old_route
; old_route
= old_route
->next
) {
218 bool route_updated
= false;
220 if (!ospf6_route_is_same(old_route
, route
)
221 || (old_route
->path
.type
!= route
->path
.type
))
224 /* Current and New route has same origin,
227 for (ALL_LIST_ELEMENTS(old_route
->paths
, anode
, anext
,
229 /* Check old route path and route has same
232 if (o_path
->area_id
!= route
->path
.area_id
233 || (memcmp(&(o_path
)->origin
, &(route
)->path
.origin
,
234 sizeof(struct ospf6_ls_origin
))
238 /* Cost is not same then delete current path */
239 if ((o_path
->cost
== route
->path
.cost
)
240 && (o_path
->u
.cost_e2
== route
->path
.u
.cost_e2
))
243 if (IS_OSPF6_DEBUG_EXAMIN(AS_EXTERNAL
)) {
244 prefix2str(&old_route
->prefix
, buf
,
247 "%s: route %s cost old %u new %u is not same, replace route",
248 __PRETTY_FUNCTION__
, buf
, o_path
->cost
,
252 /* Remove selected current rout path's nh from
255 for (ALL_LIST_ELEMENTS_RO(o_path
->nh_list
, nnode
, nh
)) {
256 for (ALL_LIST_ELEMENTS(old_route
->nh_list
,
257 rnode
, rnext
, rnh
)) {
258 if (!ospf6_nexthop_is_same(rnh
, nh
))
260 listnode_delete(old_route
->nh_list
,
262 ospf6_nexthop_delete(rnh
);
263 route_updated
= true;
267 listnode_delete(old_route
->paths
, o_path
);
268 ospf6_path_free(o_path
);
270 /* Current route's path (adv_router info) is similar
271 * to route being added.
272 * Replace current route's path with paths list head.
273 * Update FIB with effective NHs.
275 if (listcount(old_route
->paths
)) {
276 if (old_route
->path
.origin
.id
277 == route
->path
.origin
.id
278 && old_route
->path
.origin
.adv_router
279 == route
->path
.origin
281 struct ospf6_path
*h_path
;
283 h_path
= (struct ospf6_path
*)
284 listgetdata(listhead(
286 old_route
->path
.origin
.type
=
288 old_route
->path
.origin
.id
=
290 old_route
->path
.origin
.adv_router
=
291 h_path
->origin
.adv_router
;
295 for (ALL_LIST_ELEMENTS(old_route
->paths
,
298 ospf6_merge_nexthops(
302 /* Update RIB/FIB with effective
305 if (ospf6
->route_table
->hook_add
)
306 (*ospf6
->route_table
->hook_add
)(
311 if (IS_OSPF6_DEBUG_EXAMIN(AS_EXTERNAL
)) {
312 prefix2str(&old_route
->prefix
, buf
,
315 "%s: route %s old cost %u new cost %u, delete old entry.",
316 __PRETTY_FUNCTION__
, buf
,
317 old_route
->path
.cost
,
320 ospf6_route_remove(old_route
,
330 for (old_route
= old
; old_route
; old_route
= old_route
->next
) {
332 /* Current and New Route prefix or route type
333 * is not same skip this current node.
335 if (!ospf6_route_is_same(old_route
, route
)
336 || (old_route
->path
.type
!= route
->path
.type
))
339 /* Old Route and New Route have Equal Cost, Merge NHs */
340 if ((old_route
->path
.cost
== route
->path
.cost
)
341 && (old_route
->path
.u
.cost_e2
== route
->path
.u
.cost_e2
)) {
343 if (IS_OSPF6_DEBUG_EXAMIN(AS_EXTERNAL
)) {
344 prefix2str(&old_route
->prefix
, buf
,
347 "%s: old route %s path cost %u e2 %u",
348 __PRETTY_FUNCTION__
, buf
,
349 old_route
->path
.cost
,
350 old_route
->path
.u
.cost_e2
);
353 /* check if this path exists already in
354 * route->paths list, if so, replace nh_list
357 for (ALL_LIST_ELEMENTS_RO(old_route
->paths
, anode
,
359 if (o_path
->area_id
== route
->path
.area_id
360 && (memcmp(&(o_path
)->origin
,
361 &(route
)->path
.origin
,
362 sizeof(struct ospf6_ls_origin
))
366 /* If path is not found in old_route paths's list,
367 * add a new path to route paths list and merge
368 * nexthops in route->path->nh_list.
369 * Otherwise replace existing path's nh_list.
371 if (o_path
== NULL
) {
372 ecmp_path
= ospf6_path_dup(&route
->path
);
374 /* Add a nh_list to new ecmp path */
375 ospf6_copy_nexthops(ecmp_path
->nh_list
,
377 /* Merge nexthop to existing route's nh_list */
378 ospf6_route_merge_nexthops(old_route
, route
);
381 if (ospf6
->route_table
->hook_add
)
382 (*ospf6
->route_table
->hook_add
)(
385 /* Add the new path to route's path list */
386 listnode_add_sort(old_route
->paths
, ecmp_path
);
388 if (IS_OSPF6_DEBUG_EXAMIN(AS_EXTERNAL
)) {
389 prefix2str(&route
->prefix
, buf
,
392 "%s: route %s another path added with nh %u, effective paths %u nh %u",
393 __PRETTY_FUNCTION__
, buf
,
394 listcount(ecmp_path
->nh_list
),
400 listcount(old_route
->nh_list
));
403 for (ALL_LIST_ELEMENTS_RO(o_path
->nh_list
,
405 for (ALL_LIST_ELEMENTS(
406 old_route
->nh_list
, rnode
,
408 if (!ospf6_nexthop_is_same(rnh
,
415 ospf6_nexthop_delete(rnh
);
418 list_delete_all_node(o_path
->nh_list
);
419 ospf6_copy_nexthops(o_path
->nh_list
,
422 /* Merge nexthop to existing route's nh_list */
423 ospf6_route_merge_nexthops(old_route
, route
);
425 if (IS_OSPF6_DEBUG_EXAMIN(AS_EXTERNAL
)) {
426 prefix2str(&route
->prefix
, buf
,
429 "%s: existing route %s with effective nh count %u",
430 __PRETTY_FUNCTION__
, buf
,
439 if (ospf6
->route_table
->hook_add
)
440 (*ospf6
->route_table
->hook_add
)(
443 /* Delete the new route its info added to existing
446 ospf6_route_delete(route
);
453 /* Add new route to existing node in ospf6 route table. */
454 ospf6_route_add(route
, ospf6
->route_table
);
458 void ospf6_asbr_lsa_add(struct ospf6_lsa
*lsa
)
460 struct ospf6_as_external_lsa
*external
;
461 struct prefix asbr_id
;
462 struct ospf6_route
*asbr_entry
, *route
, *old
;
463 struct ospf6_path
*path
;
464 char buf
[PREFIX2STR_BUFFER
];
466 external
= (struct ospf6_as_external_lsa
*)OSPF6_LSA_HEADER_END(
469 if (IS_OSPF6_DEBUG_EXAMIN(AS_EXTERNAL
))
470 zlog_debug("Calculate AS-External route for %s", lsa
->name
);
472 if (lsa
->header
->adv_router
== ospf6
->router_id
) {
473 if (IS_OSPF6_DEBUG_EXAMIN(AS_EXTERNAL
))
474 zlog_debug("Ignore self-originated AS-External-LSA");
478 if (OSPF6_ASBR_METRIC(external
) == OSPF_LS_INFINITY
) {
479 if (IS_OSPF6_DEBUG_EXAMIN(AS_EXTERNAL
))
480 zlog_debug("Ignore LSA with LSInfinity Metric");
484 if (CHECK_FLAG(external
->prefix
.prefix_options
,
485 OSPF6_PREFIX_OPTION_NU
)) {
486 if (IS_OSPF6_DEBUG_EXAMIN(AS_EXTERNAL
))
487 zlog_debug("Ignore LSA with NU bit set Metric");
491 ospf6_linkstate_prefix(lsa
->header
->adv_router
, htonl(0), &asbr_id
);
492 asbr_entry
= ospf6_route_lookup(&asbr_id
, ospf6
->brouter_table
);
493 if (asbr_entry
== NULL
494 || !CHECK_FLAG(asbr_entry
->path
.router_bits
, OSPF6_ROUTER_BIT_E
)) {
495 if (IS_OSPF6_DEBUG_EXAMIN(AS_EXTERNAL
)) {
496 prefix2str(&asbr_id
, buf
, sizeof(buf
));
497 zlog_debug("ASBR entry not found: %s", buf
);
502 route
= ospf6_route_create();
503 route
->type
= OSPF6_DEST_TYPE_NETWORK
;
504 route
->prefix
.family
= AF_INET6
;
505 route
->prefix
.prefixlen
= external
->prefix
.prefix_length
;
506 ospf6_prefix_in6_addr(&route
->prefix
.u
.prefix6
, &external
->prefix
);
508 route
->path
.area_id
= asbr_entry
->path
.area_id
;
509 route
->path
.origin
.type
= lsa
->header
->type
;
510 route
->path
.origin
.id
= lsa
->header
->id
;
511 route
->path
.origin
.adv_router
= lsa
->header
->adv_router
;
513 route
->path
.prefix_options
= external
->prefix
.prefix_options
;
514 if (CHECK_FLAG(external
->bits_metric
, OSPF6_ASBR_BIT_E
)) {
515 route
->path
.type
= OSPF6_PATH_TYPE_EXTERNAL2
;
516 route
->path
.metric_type
= 2;
517 route
->path
.cost
= asbr_entry
->path
.cost
;
518 route
->path
.u
.cost_e2
= OSPF6_ASBR_METRIC(external
);
520 route
->path
.type
= OSPF6_PATH_TYPE_EXTERNAL1
;
521 route
->path
.metric_type
= 1;
523 asbr_entry
->path
.cost
+ OSPF6_ASBR_METRIC(external
);
524 route
->path
.u
.cost_e2
= 0;
527 route
->path
.tag
= ospf6_as_external_lsa_get_tag(lsa
);
529 ospf6_route_copy_nexthops(route
, asbr_entry
);
531 path
= ospf6_path_dup(&route
->path
);
532 ospf6_copy_nexthops(path
->nh_list
, asbr_entry
->nh_list
);
533 listnode_add_sort(route
->paths
, path
);
536 if (IS_OSPF6_DEBUG_EXAMIN(AS_EXTERNAL
)) {
537 prefix2str(&route
->prefix
, buf
, sizeof(buf
));
538 zlog_debug("%s: AS-External %u route add %s cost %u(%u) nh %u",
540 (route
->path
.type
== OSPF6_PATH_TYPE_EXTERNAL1
) ? 1
542 buf
, route
->path
.cost
, route
->path
.u
.cost_e2
,
543 listcount(route
->nh_list
));
546 old
= ospf6_route_lookup(&route
->prefix
, ospf6
->route_table
);
548 /* Add the new route to ospf6 instance route table. */
549 ospf6_route_add(route
, ospf6
->route_table
);
552 * ECMP: Keep new equal preference path in current
553 * route's path list, update zebra with new effective
554 * list along with addition of ECMP path.
556 ospf6_asbr_update_route_ecmp_path(old
, route
);
560 void ospf6_asbr_lsa_remove(struct ospf6_lsa
*lsa
,
561 struct ospf6_route
*asbr_entry
)
563 struct ospf6_as_external_lsa
*external
;
564 struct prefix prefix
;
565 struct ospf6_route
*route
, *nroute
, *route_to_del
;
566 char buf
[PREFIX2STR_BUFFER
];
568 external
= (struct ospf6_as_external_lsa
*)OSPF6_LSA_HEADER_END(
571 if (IS_OSPF6_DEBUG_EXAMIN(AS_EXTERNAL
))
572 zlog_debug("Withdraw AS-External route for %s", lsa
->name
);
574 if (lsa
->header
->adv_router
== ospf6
->router_id
) {
575 if (IS_OSPF6_DEBUG_EXAMIN(AS_EXTERNAL
))
576 zlog_debug("Ignore self-originated AS-External-LSA");
580 route_to_del
= ospf6_route_create();
581 route_to_del
->type
= OSPF6_DEST_TYPE_NETWORK
;
582 route_to_del
->prefix
.family
= AF_INET6
;
583 route_to_del
->prefix
.prefixlen
= external
->prefix
.prefix_length
;
584 ospf6_prefix_in6_addr(&route_to_del
->prefix
.u
.prefix6
,
587 route_to_del
->path
.origin
.type
= lsa
->header
->type
;
588 route_to_del
->path
.origin
.id
= lsa
->header
->id
;
589 route_to_del
->path
.origin
.adv_router
= lsa
->header
->adv_router
;
592 route_to_del
->path
.area_id
= asbr_entry
->path
.area_id
;
593 if (CHECK_FLAG(external
->bits_metric
, OSPF6_ASBR_BIT_E
)) {
594 route_to_del
->path
.type
= OSPF6_PATH_TYPE_EXTERNAL2
;
595 route_to_del
->path
.metric_type
= 2;
596 route_to_del
->path
.cost
= asbr_entry
->path
.cost
;
597 route_to_del
->path
.u
.cost_e2
=
598 OSPF6_ASBR_METRIC(external
);
600 route_to_del
->path
.type
= OSPF6_PATH_TYPE_EXTERNAL1
;
601 route_to_del
->path
.metric_type
= 1;
602 route_to_del
->path
.cost
= asbr_entry
->path
.cost
603 + OSPF6_ASBR_METRIC(external
);
604 route_to_del
->path
.u
.cost_e2
= 0;
608 memset(&prefix
, 0, sizeof(struct prefix
));
609 prefix
.family
= AF_INET6
;
610 prefix
.prefixlen
= external
->prefix
.prefix_length
;
611 ospf6_prefix_in6_addr(&prefix
.u
.prefix6
, &external
->prefix
);
613 route
= ospf6_route_lookup(&prefix
, ospf6
->route_table
);
615 if (IS_OSPF6_DEBUG_EXAMIN(AS_EXTERNAL
)) {
616 prefix2str(&prefix
, buf
, sizeof(buf
));
617 zlog_debug("AS-External route %s not found", buf
);
622 if (IS_OSPF6_DEBUG_EXAMIN(AS_EXTERNAL
)) {
623 prefix2str(&prefix
, buf
, sizeof(buf
));
625 "%s: Current route %s cost %u e2 %u, route to del cost %u e2 %u",
626 __PRETTY_FUNCTION__
, buf
, route
->path
.cost
,
627 route
->path
.u
.cost_e2
, route_to_del
->path
.cost
,
628 route_to_del
->path
.u
.cost_e2
);
631 for (ospf6_route_lock(route
);
632 route
&& ospf6_route_is_prefix(&prefix
, route
); route
= nroute
) {
633 nroute
= ospf6_route_next(route
);
635 if (route
->type
!= OSPF6_DEST_TYPE_NETWORK
)
638 /* Route has multiple ECMP paths, remove matching
639 * path. Update current route's effective nh list
640 * after removal of one of the path.
642 if (listcount(route
->paths
) > 1) {
643 struct listnode
*anode
, *anext
;
644 struct listnode
*nnode
, *rnode
, *rnext
;
645 struct ospf6_nexthop
*nh
, *rnh
;
646 struct ospf6_path
*o_path
;
647 bool nh_updated
= false;
649 /* Iterate all paths of route to find maching with LSA
650 * remove from route path list. If route->path is same,
651 * replace from paths list.
653 for (ALL_LIST_ELEMENTS(route
->paths
, anode
, anext
,
655 if ((o_path
->origin
.type
!= lsa
->header
->type
)
656 || (o_path
->origin
.adv_router
657 != lsa
->header
->adv_router
)
658 || (o_path
->origin
.id
!= lsa
->header
->id
))
661 /* Compare LSA cost with current
665 && (o_path
->cost
!= route_to_del
->path
.cost
667 != route_to_del
->path
.u
669 if (IS_OSPF6_DEBUG_EXAMIN(
671 prefix2str(&prefix
, buf
,
674 "%s: route %s to delete is not same, cost %u del cost %u. skip",
676 buf
, route
->path
.cost
,
683 if (IS_OSPF6_DEBUG_EXAMIN(AS_EXTERNAL
)) {
684 prefix2str(&prefix
, buf
, sizeof(buf
));
686 "%s: route %s path found with nh %u to remove.",
687 __PRETTY_FUNCTION__
, buf
,
688 listcount(o_path
->nh_list
));
691 /* Remove found path's nh_list from
692 * the route's nh_list.
694 for (ALL_LIST_ELEMENTS_RO(o_path
->nh_list
,
696 for (ALL_LIST_ELEMENTS(route
->nh_list
,
699 if (!ospf6_nexthop_is_same(rnh
,
702 listnode_delete(route
->nh_list
,
704 ospf6_nexthop_delete(rnh
);
707 /* Delete the path from route's path list */
708 listnode_delete(route
->paths
, o_path
);
709 ospf6_path_free(o_path
);
714 /* Iterate all paths and merge nexthop,
715 * unlesss any of the nexthop similar to
716 * ones deleted as part of path deletion.
719 for (ALL_LIST_ELEMENTS(route
->paths
, anode
,
721 ospf6_merge_nexthops(route
->nh_list
,
725 if (IS_OSPF6_DEBUG_EXAMIN(AS_EXTERNAL
)) {
726 prefix2str(&route
->prefix
, buf
,
729 "%s: AS-External %u route %s update paths %u nh %u",
732 == OSPF6_PATH_TYPE_EXTERNAL1
)
735 buf
, listcount(route
->paths
),
736 listcount(route
->nh_list
));
739 /* Update RIB/FIB with effective nh_list */
740 if (ospf6
->route_table
->hook_add
)
741 (*ospf6
->route_table
->hook_add
)(route
);
743 /* route's primary path is similar to LSA,
744 * replace route's primary path with
745 * route's paths list head.
747 if (route
->path
.origin
.id
== lsa
->header
->id
748 && route
->path
.origin
.adv_router
749 == lsa
->header
->adv_router
) {
750 struct ospf6_path
*h_path
;
752 h_path
= (struct ospf6_path
*)
754 listhead(route
->paths
));
755 route
->path
.origin
.type
=
757 route
->path
.origin
.id
=
759 route
->path
.origin
.adv_router
=
760 h_path
->origin
.adv_router
;
766 /* Compare LSA origin and cost with current route info.
767 * if any check fails skip del this route node.
770 && (!ospf6_route_is_same_origin(route
, route_to_del
)
771 || (route
->path
.type
!= route_to_del
->path
.type
)
772 || (route
->path
.cost
!= route_to_del
->path
.cost
)
773 || (route
->path
.u
.cost_e2
774 != route_to_del
->path
.u
.cost_e2
))) {
775 if (IS_OSPF6_DEBUG_EXAMIN(AS_EXTERNAL
)) {
776 prefix2str(&prefix
, buf
, sizeof(buf
));
778 "%s: route %s to delete is not same, cost %u del cost %u. skip",
779 __PRETTY_FUNCTION__
, buf
,
781 route_to_del
->path
.cost
);
786 if ((route
->path
.origin
.type
!= lsa
->header
->type
)
787 || (route
->path
.origin
.adv_router
788 != lsa
->header
->adv_router
)
789 || (route
->path
.origin
.id
!= lsa
->header
->id
))
792 if (IS_OSPF6_DEBUG_EXAMIN(AS_EXTERNAL
)) {
793 prefix2str(&route
->prefix
, buf
, sizeof(buf
));
795 "%s: AS-External %u route remove %s cost %u(%u) nh %u",
797 route
->path
.type
== OSPF6_PATH_TYPE_EXTERNAL1
800 buf
, route
->path
.cost
, route
->path
.u
.cost_e2
,
801 listcount(route
->nh_list
));
803 ospf6_route_remove(route
, ospf6
->route_table
);
806 ospf6_route_unlock(route
);
808 ospf6_route_delete(route_to_del
);
811 void ospf6_asbr_lsentry_add(struct ospf6_route
*asbr_entry
)
813 struct ospf6_lsa
*lsa
;
817 if (!CHECK_FLAG(asbr_entry
->flag
, OSPF6_ROUTE_BEST
)) {
819 inet_ntop(AF_INET
, &ADV_ROUTER_IN_PREFIX(&asbr_entry
->prefix
),
821 zlog_info("ignore non-best path: lsentry %s add", buf
);
825 type
= htons(OSPF6_LSTYPE_AS_EXTERNAL
);
826 router
= ospf6_linkstate_prefix_adv_router(&asbr_entry
->prefix
);
827 for (ALL_LSDB_TYPED_ADVRTR(ospf6
->lsdb
, type
, router
, lsa
)) {
828 if (!OSPF6_LSA_IS_MAXAGE(lsa
))
829 ospf6_asbr_lsa_add(lsa
);
833 void ospf6_asbr_lsentry_remove(struct ospf6_route
*asbr_entry
)
835 struct ospf6_lsa
*lsa
;
839 type
= htons(OSPF6_LSTYPE_AS_EXTERNAL
);
840 router
= ospf6_linkstate_prefix_adv_router(&asbr_entry
->prefix
);
841 for (ALL_LSDB_TYPED_ADVRTR(ospf6
->lsdb
, type
, router
, lsa
))
842 ospf6_asbr_lsa_remove(lsa
, asbr_entry
);
846 /* redistribute function */
848 static void ospf6_asbr_routemap_set(int type
, const char *mapname
)
850 if (ospf6
->rmap
[type
].name
)
851 free(ospf6
->rmap
[type
].name
);
852 ospf6
->rmap
[type
].name
= strdup(mapname
);
853 ospf6
->rmap
[type
].map
= route_map_lookup_by_name(mapname
);
856 static void ospf6_asbr_routemap_unset(int type
)
858 if (ospf6
->rmap
[type
].name
)
859 free(ospf6
->rmap
[type
].name
);
860 ospf6
->rmap
[type
].name
= NULL
;
861 ospf6
->rmap
[type
].map
= NULL
;
864 static int ospf6_asbr_routemap_update_timer(struct thread
*thread
)
869 arg
= THREAD_ARG(thread
);
870 arg_type
= (int)(intptr_t)arg
[1];
872 ospf6
->t_distribute_update
= NULL
;
874 if (ospf6
->rmap
[arg_type
].name
)
875 ospf6
->rmap
[arg_type
].map
=
876 route_map_lookup_by_name(ospf6
->rmap
[arg_type
].name
);
877 if (ospf6
->rmap
[arg_type
].map
) {
878 if (IS_OSPF6_DEBUG_ASBR
)
879 zlog_debug("%s: route-map %s update, reset redist %s",
881 ospf6
->rmap
[arg_type
].name
,
882 ZROUTE_NAME(arg_type
));
884 ospf6_zebra_no_redistribute(arg_type
);
885 ospf6_zebra_redistribute(arg_type
);
888 XFREE(MTYPE_OSPF6_DIST_ARGS
, arg
);
892 void ospf6_asbr_distribute_list_update(int type
)
896 if (ospf6
->t_distribute_update
)
899 args
= XCALLOC(MTYPE_OSPF6_DIST_ARGS
, sizeof(void *) * 2);
902 args
[1] = (void *)((ptrdiff_t)type
);
904 if (IS_OSPF6_DEBUG_ASBR
)
905 zlog_debug("%s: trigger redistribute %s reset thread",
906 __PRETTY_FUNCTION__
, ZROUTE_NAME(type
));
908 ospf6
->t_distribute_update
= NULL
;
909 thread_add_timer_msec(master
, ospf6_asbr_routemap_update_timer
,
910 (void **)args
, OSPF_MIN_LS_INTERVAL
,
911 &ospf6
->t_distribute_update
);
914 static void ospf6_asbr_routemap_update(const char *mapname
)
921 for (type
= 0; type
< ZEBRA_ROUTE_MAX
; type
++) {
922 if (ospf6
->rmap
[type
].name
) {
923 ospf6
->rmap
[type
].map
= route_map_lookup_by_name(
924 ospf6
->rmap
[type
].name
);
926 if (mapname
&& ospf6
->rmap
[type
].map
927 && (strcmp(ospf6
->rmap
[type
].name
, mapname
) == 0)) {
928 if (IS_OSPF6_DEBUG_ASBR
)
930 "%s: route-map %s update, reset redist %s",
931 __PRETTY_FUNCTION__
, mapname
,
933 ospf6_asbr_distribute_list_update(type
);
936 ospf6
->rmap
[type
].map
= NULL
;
940 static void ospf6_asbr_routemap_event(route_map_event_t event
, const char *name
)
946 for (type
= 0; type
< ZEBRA_ROUTE_MAX
; type
++) {
947 if ((ospf6
->rmap
[type
].name
)
948 && (strcmp(ospf6
->rmap
[type
].name
, name
) == 0)) {
949 ospf6_asbr_distribute_list_update(type
);
954 int ospf6_asbr_is_asbr(struct ospf6
*o
)
956 return o
->external_table
->count
;
959 static void ospf6_asbr_redistribute_set(int type
)
961 ospf6_zebra_redistribute(type
);
964 static void ospf6_asbr_redistribute_unset(int type
)
966 struct ospf6_route
*route
;
967 struct ospf6_external_info
*info
;
969 ospf6_zebra_no_redistribute(type
);
971 for (route
= ospf6_route_head(ospf6
->external_table
); route
;
972 route
= ospf6_route_next(route
)) {
973 info
= route
->route_option
;
974 if (info
->type
!= type
)
977 ospf6_asbr_redistribute_remove(info
->type
, 0, &route
->prefix
);
980 ospf6_asbr_routemap_unset(type
);
983 /* When an area is unstubified, flood all the external LSAs in the area */
984 void ospf6_asbr_send_externals_to_area(struct ospf6_area
*oa
)
986 struct ospf6_lsa
*lsa
;
988 for (ALL_LSDB(oa
->ospf6
->lsdb
, lsa
)) {
989 if (ntohs(lsa
->header
->type
) == OSPF6_LSTYPE_AS_EXTERNAL
) {
990 zlog_debug("%s: Flooding AS-External LSA %s\n",
991 __func__
, lsa
->name
);
992 ospf6_flood_area(NULL
, lsa
, oa
);
997 void ospf6_asbr_redistribute_add(int type
, ifindex_t ifindex
,
998 struct prefix
*prefix
, u_int nexthop_num
,
999 struct in6_addr
*nexthop
, route_tag_t tag
)
1002 struct ospf6_route troute
;
1003 struct ospf6_external_info tinfo
;
1004 struct ospf6_route
*route
, *match
;
1005 struct ospf6_external_info
*info
;
1006 struct prefix prefix_id
;
1007 struct route_node
*node
;
1008 char pbuf
[PREFIX2STR_BUFFER
], ibuf
[16];
1009 struct listnode
*lnode
, *lnnode
;
1010 struct ospf6_area
*oa
;
1012 if (!ospf6_zebra_is_redistribute(type
))
1015 memset(&troute
, 0, sizeof(troute
));
1016 memset(&tinfo
, 0, sizeof(tinfo
));
1018 if (IS_OSPF6_DEBUG_ASBR
) {
1019 prefix2str(prefix
, pbuf
, sizeof(pbuf
));
1020 zlog_debug("Redistribute %s (%s)", pbuf
, ZROUTE_NAME(type
));
1023 /* if route-map was specified but not found, do not advertise */
1024 if (ospf6
->rmap
[type
].name
) {
1025 if (ospf6
->rmap
[type
].map
== NULL
)
1026 ospf6_asbr_routemap_update(NULL
);
1027 if (ospf6
->rmap
[type
].map
== NULL
) {
1029 "route-map \"%s\" not found, suppress redistributing",
1030 ospf6
->rmap
[type
].name
);
1035 /* apply route-map */
1036 if (ospf6
->rmap
[type
].map
) {
1037 troute
.route_option
= &tinfo
;
1038 tinfo
.ifindex
= ifindex
;
1041 ret
= route_map_apply(ospf6
->rmap
[type
].map
, prefix
, RMAP_OSPF6
,
1043 if (ret
== RMAP_DENYMATCH
) {
1044 if (IS_OSPF6_DEBUG_ASBR
)
1045 zlog_debug("Denied by route-map \"%s\"",
1046 ospf6
->rmap
[type
].name
);
1051 match
= ospf6_route_lookup(prefix
, ospf6
->external_table
);
1053 info
= match
->route_option
;
1054 /* copy result of route-map */
1055 if (ospf6
->rmap
[type
].map
) {
1056 if (troute
.path
.metric_type
)
1057 match
->path
.metric_type
=
1058 troute
.path
.metric_type
;
1059 if (troute
.path
.cost
)
1060 match
->path
.cost
= troute
.path
.cost
;
1061 if (!IN6_IS_ADDR_UNSPECIFIED(&tinfo
.forwarding
))
1062 memcpy(&info
->forwarding
, &tinfo
.forwarding
,
1063 sizeof(struct in6_addr
));
1064 info
->tag
= tinfo
.tag
;
1066 /* If there is no route-map, simply update the tag */
1072 if (nexthop_num
&& nexthop
)
1073 ospf6_route_add_nexthop(match
, ifindex
, nexthop
);
1075 ospf6_route_add_nexthop(match
, ifindex
, NULL
);
1077 /* create/update binding in external_id_table */
1078 prefix_id
.family
= AF_INET
;
1079 prefix_id
.prefixlen
= 32;
1080 prefix_id
.u
.prefix4
.s_addr
= htonl(info
->id
);
1081 node
= route_node_get(ospf6
->external_id_table
, &prefix_id
);
1084 if (IS_OSPF6_DEBUG_ASBR
) {
1085 inet_ntop(AF_INET
, &prefix_id
.u
.prefix4
, ibuf
,
1087 prefix2str(prefix
, pbuf
, sizeof(pbuf
));
1089 "Advertise as AS-External Id:%s prefix %s metric %u",
1090 ibuf
, pbuf
, match
->path
.metric_type
);
1093 match
->path
.origin
.id
= htonl(info
->id
);
1094 ospf6_as_external_lsa_originate(match
);
1098 /* create new entry */
1099 route
= ospf6_route_create();
1100 route
->type
= OSPF6_DEST_TYPE_NETWORK
;
1101 memcpy(&route
->prefix
, prefix
, sizeof(struct prefix
));
1103 info
= (struct ospf6_external_info
*)XCALLOC(
1104 MTYPE_OSPF6_EXTERNAL_INFO
, sizeof(struct ospf6_external_info
));
1105 route
->route_option
= info
;
1106 info
->id
= ospf6
->external_id
++;
1108 /* copy result of route-map */
1109 if (ospf6
->rmap
[type
].map
) {
1110 if (troute
.path
.metric_type
)
1111 route
->path
.metric_type
= troute
.path
.metric_type
;
1112 if (troute
.path
.cost
)
1113 route
->path
.cost
= troute
.path
.cost
;
1114 if (!IN6_IS_ADDR_UNSPECIFIED(&tinfo
.forwarding
))
1115 memcpy(&info
->forwarding
, &tinfo
.forwarding
,
1116 sizeof(struct in6_addr
));
1117 info
->tag
= tinfo
.tag
;
1119 /* If there is no route-map, simply set the tag */
1124 if (nexthop_num
&& nexthop
)
1125 ospf6_route_add_nexthop(route
, ifindex
, nexthop
);
1127 ospf6_route_add_nexthop(route
, ifindex
, NULL
);
1129 /* create/update binding in external_id_table */
1130 prefix_id
.family
= AF_INET
;
1131 prefix_id
.prefixlen
= 32;
1132 prefix_id
.u
.prefix4
.s_addr
= htonl(info
->id
);
1133 node
= route_node_get(ospf6
->external_id_table
, &prefix_id
);
1136 route
= ospf6_route_add(route
, ospf6
->external_table
);
1137 route
->route_option
= info
;
1139 if (IS_OSPF6_DEBUG_ASBR
) {
1140 inet_ntop(AF_INET
, &prefix_id
.u
.prefix4
, ibuf
, sizeof(ibuf
));
1141 prefix2str(prefix
, pbuf
, sizeof(pbuf
));
1142 zlog_debug("Advertise as AS-External Id:%s prefix %s metric %u",
1143 ibuf
, pbuf
, route
->path
.metric_type
);
1146 route
->path
.origin
.id
= htonl(info
->id
);
1147 ospf6_as_external_lsa_originate(route
);
1149 /* Router-Bit (ASBR Flag) may have to be updated */
1150 for (ALL_LIST_ELEMENTS(ospf6
->area_list
, lnode
, lnnode
, oa
))
1151 OSPF6_ROUTER_LSA_SCHEDULE(oa
);
1154 void ospf6_asbr_redistribute_remove(int type
, ifindex_t ifindex
,
1155 struct prefix
*prefix
)
1157 struct ospf6_route
*match
;
1158 struct ospf6_external_info
*info
= NULL
;
1159 struct route_node
*node
;
1160 struct ospf6_lsa
*lsa
;
1161 struct prefix prefix_id
;
1162 char pbuf
[PREFIX2STR_BUFFER
], ibuf
[16];
1163 struct listnode
*lnode
, *lnnode
;
1164 struct ospf6_area
*oa
;
1166 match
= ospf6_route_lookup(prefix
, ospf6
->external_table
);
1167 if (match
== NULL
) {
1168 if (IS_OSPF6_DEBUG_ASBR
) {
1169 prefix2str(prefix
, pbuf
, sizeof(pbuf
));
1170 zlog_debug("No such route %s to withdraw", pbuf
);
1175 info
= match
->route_option
;
1178 if (info
->type
!= type
) {
1179 if (IS_OSPF6_DEBUG_ASBR
) {
1180 prefix2str(prefix
, pbuf
, sizeof(pbuf
));
1181 zlog_debug("Original protocol mismatch: %s", pbuf
);
1186 if (IS_OSPF6_DEBUG_ASBR
) {
1187 prefix2str(prefix
, pbuf
, sizeof(pbuf
));
1188 inet_ntop(AF_INET
, &prefix_id
.u
.prefix4
, ibuf
, sizeof(ibuf
));
1189 zlog_debug("Withdraw %s (AS-External Id:%s)", pbuf
, ibuf
);
1192 lsa
= ospf6_lsdb_lookup(htons(OSPF6_LSTYPE_AS_EXTERNAL
),
1193 htonl(info
->id
), ospf6
->router_id
, ospf6
->lsdb
);
1195 ospf6_lsa_purge(lsa
);
1197 /* remove binding in external_id_table */
1198 prefix_id
.family
= AF_INET
;
1199 prefix_id
.prefixlen
= 32;
1200 prefix_id
.u
.prefix4
.s_addr
= htonl(info
->id
);
1201 node
= route_node_lookup(ospf6
->external_id_table
, &prefix_id
);
1204 route_unlock_node(node
); /* to free the lookup lock */
1205 route_unlock_node(node
); /* to free the original lock */
1207 ospf6_route_remove(match
, ospf6
->external_table
);
1208 XFREE(MTYPE_OSPF6_EXTERNAL_INFO
, info
);
1210 /* Router-Bit (ASBR Flag) may have to be updated */
1211 for (ALL_LIST_ELEMENTS(ospf6
->area_list
, lnode
, lnnode
, oa
))
1212 OSPF6_ROUTER_LSA_SCHEDULE(oa
);
1215 DEFUN (ospf6_redistribute
,
1216 ospf6_redistribute_cmd
,
1217 "redistribute " FRR_REDIST_STR_OSPF6D
,
1219 FRR_REDIST_HELP_STR_OSPF6D
)
1223 char *proto
= argv
[argc
- 1]->text
;
1224 type
= proto_redistnum(AFI_IP6
, proto
);
1226 return CMD_WARNING_CONFIG_FAILED
;
1228 ospf6_asbr_redistribute_unset(type
);
1229 ospf6_asbr_redistribute_set(type
);
1233 DEFUN (ospf6_redistribute_routemap
,
1234 ospf6_redistribute_routemap_cmd
,
1235 "redistribute " FRR_REDIST_STR_OSPF6D
" route-map WORD",
1237 FRR_REDIST_HELP_STR_OSPF6D
1238 "Route map reference\n"
1241 int idx_protocol
= 1;
1245 char *proto
= argv
[idx_protocol
]->text
;
1246 type
= proto_redistnum(AFI_IP6
, proto
);
1248 return CMD_WARNING_CONFIG_FAILED
;
1250 ospf6_asbr_redistribute_unset(type
);
1251 ospf6_asbr_routemap_set(type
, argv
[idx_word
]->arg
);
1252 ospf6_asbr_redistribute_set(type
);
1256 DEFUN (no_ospf6_redistribute
,
1257 no_ospf6_redistribute_cmd
,
1258 "no redistribute " FRR_REDIST_STR_OSPF6D
" [route-map WORD]",
1261 FRR_REDIST_HELP_STR_OSPF6D
1262 "Route map reference\n"
1265 int idx_protocol
= 2;
1268 char *proto
= argv
[idx_protocol
]->text
;
1269 type
= proto_redistnum(AFI_IP6
, proto
);
1271 return CMD_WARNING_CONFIG_FAILED
;
1273 ospf6_asbr_redistribute_unset(type
);
1278 int ospf6_redistribute_config_write(struct vty
*vty
)
1282 for (type
= 0; type
< ZEBRA_ROUTE_MAX
; type
++) {
1283 if (type
== ZEBRA_ROUTE_OSPF6
)
1285 if (!ospf6_zebra_is_redistribute(type
))
1288 if (ospf6
->rmap
[type
].name
)
1289 vty_out(vty
, " redistribute %s route-map %s\n",
1290 ZROUTE_NAME(type
), ospf6
->rmap
[type
].name
);
1292 vty_out(vty
, " redistribute %s\n", ZROUTE_NAME(type
));
1298 static void ospf6_redistribute_show_config(struct vty
*vty
)
1301 int nroute
[ZEBRA_ROUTE_MAX
];
1303 struct ospf6_route
*route
;
1304 struct ospf6_external_info
*info
;
1307 for (type
= 0; type
< ZEBRA_ROUTE_MAX
; type
++)
1309 for (route
= ospf6_route_head(ospf6
->external_table
); route
;
1310 route
= ospf6_route_next(route
)) {
1311 info
= route
->route_option
;
1312 nroute
[info
->type
]++;
1316 vty_out(vty
, "Redistributing External Routes from:\n");
1317 for (type
= 0; type
< ZEBRA_ROUTE_MAX
; type
++) {
1318 if (type
== ZEBRA_ROUTE_OSPF6
)
1320 if (!ospf6_zebra_is_redistribute(type
))
1323 if (ospf6
->rmap
[type
].name
)
1324 vty_out(vty
, " %d: %s with route-map \"%s\"%s\n",
1325 nroute
[type
], ZROUTE_NAME(type
),
1326 ospf6
->rmap
[type
].name
,
1327 (ospf6
->rmap
[type
].map
? ""
1328 : " (not found !)"));
1330 vty_out(vty
, " %d: %s\n", nroute
[type
],
1333 vty_out(vty
, "Total %d routes\n", total
);
1337 /* Routemap Functions */
1338 static route_map_result_t
1339 ospf6_routemap_rule_match_address_prefixlist(void *rule
, struct prefix
*prefix
,
1340 route_map_object_t type
,
1343 struct prefix_list
*plist
;
1345 if (type
!= RMAP_OSPF6
)
1346 return RMAP_NOMATCH
;
1348 plist
= prefix_list_lookup(AFI_IP6
, (char *)rule
);
1350 return RMAP_NOMATCH
;
1352 return (prefix_list_apply(plist
, prefix
) == PREFIX_DENY
? RMAP_NOMATCH
1357 ospf6_routemap_rule_match_address_prefixlist_compile(const char *arg
)
1359 return XSTRDUP(MTYPE_ROUTE_MAP_COMPILED
, arg
);
1362 static void ospf6_routemap_rule_match_address_prefixlist_free(void *rule
)
1364 XFREE(MTYPE_ROUTE_MAP_COMPILED
, rule
);
1367 struct route_map_rule_cmd ospf6_routemap_rule_match_address_prefixlist_cmd
= {
1368 "ipv6 address prefix-list",
1369 ospf6_routemap_rule_match_address_prefixlist
,
1370 ospf6_routemap_rule_match_address_prefixlist_compile
,
1371 ospf6_routemap_rule_match_address_prefixlist_free
,
1374 /* `match interface IFNAME' */
1375 /* Match function should return 1 if match is success else return
1377 static route_map_result_t
1378 ospf6_routemap_rule_match_interface(void *rule
, struct prefix
*prefix
,
1379 route_map_object_t type
, void *object
)
1381 struct interface
*ifp
;
1382 struct ospf6_external_info
*ei
;
1384 if (type
== RMAP_OSPF6
) {
1385 ei
= ((struct ospf6_route
*)object
)->route_option
;
1386 ifp
= if_lookup_by_name((char *)rule
, VRF_DEFAULT
);
1388 if (ifp
!= NULL
&& ei
->ifindex
== ifp
->ifindex
)
1392 return RMAP_NOMATCH
;
1395 /* Route map `interface' match statement. `arg' should be
1397 static void *ospf6_routemap_rule_match_interface_compile(const char *arg
)
1399 return XSTRDUP(MTYPE_ROUTE_MAP_COMPILED
, arg
);
1402 /* Free route map's compiled `interface' value. */
1403 static void ospf6_routemap_rule_match_interface_free(void *rule
)
1405 XFREE(MTYPE_ROUTE_MAP_COMPILED
, rule
);
1408 /* Route map commands for interface matching. */
1409 struct route_map_rule_cmd ospf6_routemap_rule_match_interface_cmd
= {
1410 "interface", ospf6_routemap_rule_match_interface
,
1411 ospf6_routemap_rule_match_interface_compile
,
1412 ospf6_routemap_rule_match_interface_free
};
1414 /* Match function for matching route tags */
1415 static route_map_result_t
ospf6_routemap_rule_match_tag(void *rule
,
1416 struct prefix
*prefix
,
1417 route_map_object_t type
,
1420 route_tag_t
*tag
= rule
;
1421 struct ospf6_route
*route
= object
;
1422 struct ospf6_external_info
*info
= route
->route_option
;
1424 if (type
== RMAP_OSPF6
&& info
->tag
== *tag
)
1427 return RMAP_NOMATCH
;
1430 static struct route_map_rule_cmd ospf6_routemap_rule_match_tag_cmd
= {
1431 "tag", ospf6_routemap_rule_match_tag
, route_map_rule_tag_compile
,
1432 route_map_rule_tag_free
,
1435 static route_map_result_t
1436 ospf6_routemap_rule_set_metric_type(void *rule
, struct prefix
*prefix
,
1437 route_map_object_t type
, void *object
)
1439 char *metric_type
= rule
;
1440 struct ospf6_route
*route
= object
;
1442 if (type
!= RMAP_OSPF6
)
1445 if (strcmp(metric_type
, "type-2") == 0)
1446 route
->path
.metric_type
= 2;
1448 route
->path
.metric_type
= 1;
1453 static void *ospf6_routemap_rule_set_metric_type_compile(const char *arg
)
1455 if (strcmp(arg
, "type-2") && strcmp(arg
, "type-1"))
1457 return XSTRDUP(MTYPE_ROUTE_MAP_COMPILED
, arg
);
1460 static void ospf6_routemap_rule_set_metric_type_free(void *rule
)
1462 XFREE(MTYPE_ROUTE_MAP_COMPILED
, rule
);
1465 struct route_map_rule_cmd ospf6_routemap_rule_set_metric_type_cmd
= {
1466 "metric-type", ospf6_routemap_rule_set_metric_type
,
1467 ospf6_routemap_rule_set_metric_type_compile
,
1468 ospf6_routemap_rule_set_metric_type_free
,
1471 static route_map_result_t
1472 ospf6_routemap_rule_set_metric(void *rule
, struct prefix
*prefix
,
1473 route_map_object_t type
, void *object
)
1475 char *metric
= rule
;
1476 struct ospf6_route
*route
= object
;
1478 if (type
!= RMAP_OSPF6
)
1481 route
->path
.cost
= atoi(metric
);
1485 static void *ospf6_routemap_rule_set_metric_compile(const char *arg
)
1489 metric
= strtoul(arg
, &endp
, 0);
1490 if (metric
> OSPF_LS_INFINITY
|| *endp
!= '\0')
1492 return XSTRDUP(MTYPE_ROUTE_MAP_COMPILED
, arg
);
1495 static void ospf6_routemap_rule_set_metric_free(void *rule
)
1497 XFREE(MTYPE_ROUTE_MAP_COMPILED
, rule
);
1500 struct route_map_rule_cmd ospf6_routemap_rule_set_metric_cmd
= {
1501 "metric", ospf6_routemap_rule_set_metric
,
1502 ospf6_routemap_rule_set_metric_compile
,
1503 ospf6_routemap_rule_set_metric_free
,
1506 static route_map_result_t
1507 ospf6_routemap_rule_set_forwarding(void *rule
, struct prefix
*prefix
,
1508 route_map_object_t type
, void *object
)
1510 char *forwarding
= rule
;
1511 struct ospf6_route
*route
= object
;
1512 struct ospf6_external_info
*info
= route
->route_option
;
1514 if (type
!= RMAP_OSPF6
)
1517 if (inet_pton(AF_INET6
, forwarding
, &info
->forwarding
) != 1) {
1518 memset(&info
->forwarding
, 0, sizeof(struct in6_addr
));
1525 static void *ospf6_routemap_rule_set_forwarding_compile(const char *arg
)
1528 if (inet_pton(AF_INET6
, arg
, &a
) != 1)
1530 return XSTRDUP(MTYPE_ROUTE_MAP_COMPILED
, arg
);
1533 static void ospf6_routemap_rule_set_forwarding_free(void *rule
)
1535 XFREE(MTYPE_ROUTE_MAP_COMPILED
, rule
);
1538 struct route_map_rule_cmd ospf6_routemap_rule_set_forwarding_cmd
= {
1539 "forwarding-address", ospf6_routemap_rule_set_forwarding
,
1540 ospf6_routemap_rule_set_forwarding_compile
,
1541 ospf6_routemap_rule_set_forwarding_free
,
1544 static route_map_result_t
ospf6_routemap_rule_set_tag(void *rule
,
1545 struct prefix
*prefix
,
1546 route_map_object_t type
,
1549 route_tag_t
*tag
= rule
;
1550 struct ospf6_route
*route
= object
;
1551 struct ospf6_external_info
*info
= route
->route_option
;
1553 if (type
!= RMAP_OSPF6
)
1560 static struct route_map_rule_cmd ospf6_routemap_rule_set_tag_cmd
= {
1561 "tag", ospf6_routemap_rule_set_tag
, route_map_rule_tag_compile
,
1562 route_map_rule_tag_free
,
1565 static int route_map_command_status(struct vty
*vty
, int ret
)
1568 case RMAP_RULE_MISSING
:
1569 vty_out(vty
, "OSPF6 Can't find rule.\n");
1570 return CMD_WARNING_CONFIG_FAILED
;
1572 case RMAP_COMPILE_ERROR
:
1573 vty_out(vty
, "OSPF6 Argument is malformed.\n");
1574 return CMD_WARNING_CONFIG_FAILED
;
1576 case RMAP_COMPILE_SUCCESS
:
1583 /* add "set metric-type" */
1584 DEFUN (ospf6_routemap_set_metric_type
,
1585 ospf6_routemap_set_metric_type_cmd
,
1586 "set metric-type <type-1|type-2>",
1589 "OSPF6 external type 1 metric\n"
1590 "OSPF6 external type 2 metric\n")
1592 VTY_DECLVAR_CONTEXT(route_map_index
, route_map_index
);
1593 int idx_external
= 2;
1594 int ret
= route_map_add_set(route_map_index
, "metric-type",
1595 argv
[idx_external
]->arg
);
1596 return route_map_command_status(vty
, ret
);
1599 /* delete "set metric-type" */
1600 DEFUN (ospf6_routemap_no_set_metric_type
,
1601 ospf6_routemap_no_set_metric_type_cmd
,
1602 "no set metric-type [<type-1|type-2>]",
1606 "OSPF6 external type 1 metric\n"
1607 "OSPF6 external type 2 metric\n")
1609 VTY_DECLVAR_CONTEXT(route_map_index
, route_map_index
);
1610 char *ext
= (argc
== 4) ? argv
[3]->text
: NULL
;
1611 int ret
= route_map_delete_set(route_map_index
, "metric-type", ext
);
1612 return route_map_command_status(vty
, ret
);
1615 /* add "set forwarding-address" */
1616 DEFUN (ospf6_routemap_set_forwarding
,
1617 ospf6_routemap_set_forwarding_cmd
,
1618 "set forwarding-address X:X::X:X",
1620 "Forwarding Address\n"
1623 VTY_DECLVAR_CONTEXT(route_map_index
, route_map_index
);
1625 int ret
= route_map_add_set(route_map_index
, "forwarding-address",
1626 argv
[idx_ipv6
]->arg
);
1627 return route_map_command_status(vty
, ret
);
1630 /* delete "set forwarding-address" */
1631 DEFUN (ospf6_routemap_no_set_forwarding
,
1632 ospf6_routemap_no_set_forwarding_cmd
,
1633 "no set forwarding-address X:X::X:X",
1636 "Forwarding Address\n"
1639 VTY_DECLVAR_CONTEXT(route_map_index
, route_map_index
);
1641 int ret
= route_map_delete_set(route_map_index
, "forwarding-address",
1642 argv
[idx_ipv6
]->arg
);
1643 return route_map_command_status(vty
, ret
);
1646 static void ospf6_routemap_init(void)
1650 route_map_add_hook(ospf6_asbr_routemap_update
);
1651 route_map_delete_hook(ospf6_asbr_routemap_update
);
1652 route_map_event_hook(ospf6_asbr_routemap_event
);
1654 route_map_set_metric_hook(generic_set_add
);
1655 route_map_no_set_metric_hook(generic_set_delete
);
1657 route_map_match_tag_hook(generic_match_add
);
1658 route_map_no_match_tag_hook(generic_match_delete
);
1660 route_map_match_ipv6_address_prefix_list_hook(generic_match_add
);
1661 route_map_no_match_ipv6_address_prefix_list_hook(generic_match_delete
);
1663 route_map_match_interface_hook(generic_match_add
);
1664 route_map_no_match_interface_hook(generic_match_delete
);
1666 route_map_install_match(
1667 &ospf6_routemap_rule_match_address_prefixlist_cmd
);
1668 route_map_install_match(&ospf6_routemap_rule_match_interface_cmd
);
1669 route_map_install_match(&ospf6_routemap_rule_match_tag_cmd
);
1671 route_map_install_set(&ospf6_routemap_rule_set_metric_type_cmd
);
1672 route_map_install_set(&ospf6_routemap_rule_set_metric_cmd
);
1673 route_map_install_set(&ospf6_routemap_rule_set_forwarding_cmd
);
1674 route_map_install_set(&ospf6_routemap_rule_set_tag_cmd
);
1676 /* ASE Metric Type (e.g. Type-1/Type-2) */
1677 install_element(RMAP_NODE
, &ospf6_routemap_set_metric_type_cmd
);
1678 install_element(RMAP_NODE
, &ospf6_routemap_no_set_metric_type_cmd
);
1681 install_element(RMAP_NODE
, &ospf6_routemap_set_forwarding_cmd
);
1682 install_element(RMAP_NODE
, &ospf6_routemap_no_set_forwarding_cmd
);
1686 /* Display functions */
1687 static char *ospf6_as_external_lsa_get_prefix_str(struct ospf6_lsa
*lsa
,
1688 char *buf
, int buflen
,
1691 struct ospf6_as_external_lsa
*external
;
1692 struct in6_addr in6
;
1693 int prefix_length
= 0;
1696 external
= (struct ospf6_as_external_lsa
*)OSPF6_LSA_HEADER_END(
1700 ospf6_prefix_in6_addr(&in6
, &external
->prefix
);
1701 prefix_length
= external
->prefix
.prefix_length
;
1703 in6
= *((struct in6_addr
1704 *)((caddr_t
)external
1706 ospf6_as_external_lsa
)
1707 + OSPF6_PREFIX_SPACE(
1712 inet_ntop(AF_INET6
, &in6
, buf
, buflen
);
1714 sprintf(&buf
[strlen(buf
)], "/%d",
1721 static int ospf6_as_external_lsa_show(struct vty
*vty
, struct ospf6_lsa
*lsa
)
1723 struct ospf6_as_external_lsa
*external
;
1726 assert(lsa
->header
);
1727 external
= (struct ospf6_as_external_lsa
*)OSPF6_LSA_HEADER_END(
1731 snprintf(buf
, sizeof(buf
), "%c%c%c",
1732 (CHECK_FLAG(external
->bits_metric
, OSPF6_ASBR_BIT_E
) ? 'E'
1734 (CHECK_FLAG(external
->bits_metric
, OSPF6_ASBR_BIT_F
) ? 'F'
1736 (CHECK_FLAG(external
->bits_metric
, OSPF6_ASBR_BIT_T
) ? 'T'
1739 vty_out(vty
, " Bits: %s\n", buf
);
1740 vty_out(vty
, " Metric: %5lu\n",
1741 (u_long
)OSPF6_ASBR_METRIC(external
));
1743 ospf6_prefix_options_printbuf(external
->prefix
.prefix_options
, buf
,
1745 vty_out(vty
, " Prefix Options: %s\n", buf
);
1747 vty_out(vty
, " Referenced LSType: %d\n",
1748 ntohs(external
->prefix
.prefix_refer_lstype
));
1750 vty_out(vty
, " Prefix: %s\n",
1751 ospf6_as_external_lsa_get_prefix_str(lsa
, buf
, sizeof(buf
), 0));
1753 /* Forwarding-Address */
1754 if (CHECK_FLAG(external
->bits_metric
, OSPF6_ASBR_BIT_F
)) {
1755 vty_out(vty
, " Forwarding-Address: %s\n",
1756 ospf6_as_external_lsa_get_prefix_str(lsa
, buf
,
1761 if (CHECK_FLAG(external
->bits_metric
, OSPF6_ASBR_BIT_T
)) {
1762 vty_out(vty
, " Tag: %" ROUTE_TAG_PRI
"\n",
1763 ospf6_as_external_lsa_get_tag(lsa
));
1769 static void ospf6_asbr_external_route_show(struct vty
*vty
,
1770 struct ospf6_route
*route
)
1772 struct ospf6_external_info
*info
= route
->route_option
;
1773 char prefix
[PREFIX2STR_BUFFER
], id
[16], forwarding
[64];
1776 prefix2str(&route
->prefix
, prefix
, sizeof(prefix
));
1777 tmp_id
= ntohl(info
->id
);
1778 inet_ntop(AF_INET
, &tmp_id
, id
, sizeof(id
));
1779 if (!IN6_IS_ADDR_UNSPECIFIED(&info
->forwarding
))
1780 inet_ntop(AF_INET6
, &info
->forwarding
, forwarding
,
1781 sizeof(forwarding
));
1783 snprintf(forwarding
, sizeof(forwarding
), ":: (ifindex %d)",
1784 ospf6_route_get_first_nh_index(route
));
1786 vty_out(vty
, "%c %-32s %-15s type-%d %5lu %s\n",
1787 zebra_route_char(info
->type
), prefix
, id
,
1788 route
->path
.metric_type
,
1789 (u_long
)(route
->path
.metric_type
== 2 ? route
->path
.u
.cost_e2
1790 : route
->path
.cost
),
1794 DEFUN (show_ipv6_ospf6_redistribute
,
1795 show_ipv6_ospf6_redistribute_cmd
,
1796 "show ipv6 ospf6 redistribute",
1800 "redistributing External information\n"
1803 struct ospf6_route
*route
;
1805 OSPF6_CMD_CHECK_RUNNING();
1807 ospf6_redistribute_show_config(vty
);
1809 for (route
= ospf6_route_head(ospf6
->external_table
); route
;
1810 route
= ospf6_route_next(route
))
1811 ospf6_asbr_external_route_show(vty
, route
);
1816 struct ospf6_lsa_handler as_external_handler
= {
1817 .lh_type
= OSPF6_LSTYPE_AS_EXTERNAL
,
1818 .lh_name
= "AS-External",
1819 .lh_short_name
= "ASE",
1820 .lh_show
= ospf6_as_external_lsa_show
,
1821 .lh_get_prefix_str
= ospf6_as_external_lsa_get_prefix_str
,
1824 void ospf6_asbr_init(void)
1826 ospf6_routemap_init();
1828 ospf6_install_lsa_handler(&as_external_handler
);
1830 install_element(VIEW_NODE
, &show_ipv6_ospf6_redistribute_cmd
);
1832 install_element(OSPF6_NODE
, &ospf6_redistribute_cmd
);
1833 install_element(OSPF6_NODE
, &ospf6_redistribute_routemap_cmd
);
1834 install_element(OSPF6_NODE
, &no_ospf6_redistribute_cmd
);
1837 void ospf6_asbr_redistribute_reset(void)
1841 for (type
= 0; type
< ZEBRA_ROUTE_MAX
; type
++) {
1842 if (type
== ZEBRA_ROUTE_OSPF6
)
1844 if (ospf6_zebra_is_redistribute(type
))
1845 ospf6_asbr_redistribute_unset(type
);
1849 void ospf6_asbr_terminate(void)
1851 /* Cleanup route maps */
1852 route_map_add_hook(NULL
);
1853 route_map_delete_hook(NULL
);
1854 route_map_event_hook(NULL
);
1858 DEFUN (debug_ospf6_asbr
,
1859 debug_ospf6_asbr_cmd
,
1863 "Debug OSPFv3 ASBR function\n"
1866 OSPF6_DEBUG_ASBR_ON();
1870 DEFUN (no_debug_ospf6_asbr
,
1871 no_debug_ospf6_asbr_cmd
,
1872 "no debug ospf6 asbr",
1876 "Debug OSPFv3 ASBR function\n"
1879 OSPF6_DEBUG_ASBR_OFF();
1883 int config_write_ospf6_debug_asbr(struct vty
*vty
)
1885 if (IS_OSPF6_DEBUG_ASBR
)
1886 vty_out(vty
, "debug ospf6 asbr\n");
1890 void install_element_ospf6_debug_asbr()
1892 install_element(ENABLE_NODE
, &debug_ospf6_asbr_cmd
);
1893 install_element(ENABLE_NODE
, &no_debug_ospf6_asbr_cmd
);
1894 install_element(CONFIG_NODE
, &debug_ospf6_asbr_cmd
);
1895 install_element(CONFIG_NODE
, &no_debug_ospf6_asbr_cmd
);