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
);
620 ospf6_route_delete(route_to_del
);
624 if (IS_OSPF6_DEBUG_EXAMIN(AS_EXTERNAL
)) {
625 prefix2str(&prefix
, buf
, sizeof(buf
));
627 "%s: Current route %s cost %u e2 %u, route to del cost %u e2 %u",
628 __PRETTY_FUNCTION__
, buf
, route
->path
.cost
,
629 route
->path
.u
.cost_e2
, route_to_del
->path
.cost
,
630 route_to_del
->path
.u
.cost_e2
);
633 for (ospf6_route_lock(route
);
634 route
&& ospf6_route_is_prefix(&prefix
, route
); route
= nroute
) {
635 nroute
= ospf6_route_next(route
);
637 if (route
->type
!= OSPF6_DEST_TYPE_NETWORK
)
640 /* Route has multiple ECMP paths, remove matching
641 * path. Update current route's effective nh list
642 * after removal of one of the path.
644 if (listcount(route
->paths
) > 1) {
645 struct listnode
*anode
, *anext
;
646 struct listnode
*nnode
, *rnode
, *rnext
;
647 struct ospf6_nexthop
*nh
, *rnh
;
648 struct ospf6_path
*o_path
;
649 bool nh_updated
= false;
651 /* Iterate all paths of route to find maching with LSA
652 * remove from route path list. If route->path is same,
653 * replace from paths list.
655 for (ALL_LIST_ELEMENTS(route
->paths
, anode
, anext
,
657 if ((o_path
->origin
.type
!= lsa
->header
->type
)
658 || (o_path
->origin
.adv_router
659 != lsa
->header
->adv_router
)
660 || (o_path
->origin
.id
!= lsa
->header
->id
))
663 /* Compare LSA cost with current
667 && (o_path
->cost
!= route_to_del
->path
.cost
669 != route_to_del
->path
.u
671 if (IS_OSPF6_DEBUG_EXAMIN(
673 prefix2str(&prefix
, buf
,
676 "%s: route %s to delete is not same, cost %u del cost %u. skip",
678 buf
, route
->path
.cost
,
685 if (IS_OSPF6_DEBUG_EXAMIN(AS_EXTERNAL
)) {
686 prefix2str(&prefix
, buf
, sizeof(buf
));
688 "%s: route %s path found with nh %u to remove.",
689 __PRETTY_FUNCTION__
, buf
,
690 listcount(o_path
->nh_list
));
693 /* Remove found path's nh_list from
694 * the route's nh_list.
696 for (ALL_LIST_ELEMENTS_RO(o_path
->nh_list
,
698 for (ALL_LIST_ELEMENTS(route
->nh_list
,
701 if (!ospf6_nexthop_is_same(rnh
,
704 listnode_delete(route
->nh_list
,
706 ospf6_nexthop_delete(rnh
);
709 /* Delete the path from route's path list */
710 listnode_delete(route
->paths
, o_path
);
711 ospf6_path_free(o_path
);
716 /* Iterate all paths and merge nexthop,
717 * unlesss any of the nexthop similar to
718 * ones deleted as part of path deletion.
721 for (ALL_LIST_ELEMENTS(route
->paths
, anode
,
723 ospf6_merge_nexthops(route
->nh_list
,
727 if (IS_OSPF6_DEBUG_EXAMIN(AS_EXTERNAL
)) {
728 prefix2str(&route
->prefix
, buf
,
731 "%s: AS-External %u route %s update paths %u nh %u",
734 == OSPF6_PATH_TYPE_EXTERNAL1
)
737 buf
, listcount(route
->paths
),
738 listcount(route
->nh_list
));
741 /* Update RIB/FIB with effective nh_list */
742 if (ospf6
->route_table
->hook_add
)
743 (*ospf6
->route_table
->hook_add
)(route
);
745 /* route's primary path is similar to LSA,
746 * replace route's primary path with
747 * route's paths list head.
749 if (route
->path
.origin
.id
== lsa
->header
->id
750 && route
->path
.origin
.adv_router
751 == lsa
->header
->adv_router
) {
752 struct ospf6_path
*h_path
;
754 h_path
= (struct ospf6_path
*)
756 listhead(route
->paths
));
757 route
->path
.origin
.type
=
759 route
->path
.origin
.id
=
761 route
->path
.origin
.adv_router
=
762 h_path
->origin
.adv_router
;
768 /* Compare LSA origin and cost with current route info.
769 * if any check fails skip del this route node.
772 && (!ospf6_route_is_same_origin(route
, route_to_del
)
773 || (route
->path
.type
!= route_to_del
->path
.type
)
774 || (route
->path
.cost
!= route_to_del
->path
.cost
)
775 || (route
->path
.u
.cost_e2
776 != route_to_del
->path
.u
.cost_e2
))) {
777 if (IS_OSPF6_DEBUG_EXAMIN(AS_EXTERNAL
)) {
778 prefix2str(&prefix
, buf
, sizeof(buf
));
780 "%s: route %s to delete is not same, cost %u del cost %u. skip",
781 __PRETTY_FUNCTION__
, buf
,
783 route_to_del
->path
.cost
);
788 if ((route
->path
.origin
.type
!= lsa
->header
->type
)
789 || (route
->path
.origin
.adv_router
790 != lsa
->header
->adv_router
)
791 || (route
->path
.origin
.id
!= lsa
->header
->id
))
794 if (IS_OSPF6_DEBUG_EXAMIN(AS_EXTERNAL
)) {
795 prefix2str(&route
->prefix
, buf
, sizeof(buf
));
797 "%s: AS-External %u route remove %s cost %u(%u) nh %u",
799 route
->path
.type
== OSPF6_PATH_TYPE_EXTERNAL1
802 buf
, route
->path
.cost
, route
->path
.u
.cost_e2
,
803 listcount(route
->nh_list
));
805 ospf6_route_remove(route
, ospf6
->route_table
);
808 ospf6_route_unlock(route
);
810 ospf6_route_delete(route_to_del
);
813 void ospf6_asbr_lsentry_add(struct ospf6_route
*asbr_entry
)
815 struct ospf6_lsa
*lsa
;
819 if (!CHECK_FLAG(asbr_entry
->flag
, OSPF6_ROUTE_BEST
)) {
821 inet_ntop(AF_INET
, &ADV_ROUTER_IN_PREFIX(&asbr_entry
->prefix
),
823 zlog_info("ignore non-best path: lsentry %s add", buf
);
827 type
= htons(OSPF6_LSTYPE_AS_EXTERNAL
);
828 router
= ospf6_linkstate_prefix_adv_router(&asbr_entry
->prefix
);
829 for (ALL_LSDB_TYPED_ADVRTR(ospf6
->lsdb
, type
, router
, lsa
)) {
830 if (!OSPF6_LSA_IS_MAXAGE(lsa
))
831 ospf6_asbr_lsa_add(lsa
);
835 void ospf6_asbr_lsentry_remove(struct ospf6_route
*asbr_entry
)
837 struct ospf6_lsa
*lsa
;
841 type
= htons(OSPF6_LSTYPE_AS_EXTERNAL
);
842 router
= ospf6_linkstate_prefix_adv_router(&asbr_entry
->prefix
);
843 for (ALL_LSDB_TYPED_ADVRTR(ospf6
->lsdb
, type
, router
, lsa
))
844 ospf6_asbr_lsa_remove(lsa
, asbr_entry
);
848 /* redistribute function */
850 static void ospf6_asbr_routemap_set(int type
, const char *mapname
)
852 if (ospf6
->rmap
[type
].name
)
853 free(ospf6
->rmap
[type
].name
);
854 ospf6
->rmap
[type
].name
= strdup(mapname
);
855 ospf6
->rmap
[type
].map
= route_map_lookup_by_name(mapname
);
858 static void ospf6_asbr_routemap_unset(int type
)
860 if (ospf6
->rmap
[type
].name
)
861 free(ospf6
->rmap
[type
].name
);
862 ospf6
->rmap
[type
].name
= NULL
;
863 ospf6
->rmap
[type
].map
= NULL
;
866 static int ospf6_asbr_routemap_update_timer(struct thread
*thread
)
871 arg
= THREAD_ARG(thread
);
872 arg_type
= (int)(intptr_t)arg
[1];
874 ospf6
->t_distribute_update
= NULL
;
876 if (ospf6
->rmap
[arg_type
].name
)
877 ospf6
->rmap
[arg_type
].map
=
878 route_map_lookup_by_name(ospf6
->rmap
[arg_type
].name
);
879 if (ospf6
->rmap
[arg_type
].map
) {
880 if (IS_OSPF6_DEBUG_ASBR
)
881 zlog_debug("%s: route-map %s update, reset redist %s",
883 ospf6
->rmap
[arg_type
].name
,
884 ZROUTE_NAME(arg_type
));
886 ospf6_zebra_no_redistribute(arg_type
);
887 ospf6_zebra_redistribute(arg_type
);
890 XFREE(MTYPE_OSPF6_DIST_ARGS
, arg
);
894 void ospf6_asbr_distribute_list_update(int type
)
898 if (ospf6
->t_distribute_update
)
901 args
= XCALLOC(MTYPE_OSPF6_DIST_ARGS
, sizeof(void *) * 2);
904 args
[1] = (void *)((ptrdiff_t)type
);
906 if (IS_OSPF6_DEBUG_ASBR
)
907 zlog_debug("%s: trigger redistribute %s reset thread",
908 __PRETTY_FUNCTION__
, ZROUTE_NAME(type
));
910 ospf6
->t_distribute_update
= NULL
;
911 thread_add_timer_msec(master
, ospf6_asbr_routemap_update_timer
,
912 (void **)args
, OSPF_MIN_LS_INTERVAL
,
913 &ospf6
->t_distribute_update
);
916 static void ospf6_asbr_routemap_update(const char *mapname
)
923 for (type
= 0; type
< ZEBRA_ROUTE_MAX
; type
++) {
924 if (ospf6
->rmap
[type
].name
) {
925 ospf6
->rmap
[type
].map
= route_map_lookup_by_name(
926 ospf6
->rmap
[type
].name
);
928 if (mapname
&& ospf6
->rmap
[type
].map
929 && (strcmp(ospf6
->rmap
[type
].name
, mapname
) == 0)) {
930 if (IS_OSPF6_DEBUG_ASBR
)
932 "%s: route-map %s update, reset redist %s",
933 __PRETTY_FUNCTION__
, mapname
,
935 ospf6_asbr_distribute_list_update(type
);
938 ospf6
->rmap
[type
].map
= NULL
;
942 static void ospf6_asbr_routemap_event(route_map_event_t event
, const char *name
)
948 for (type
= 0; type
< ZEBRA_ROUTE_MAX
; type
++) {
949 if ((ospf6
->rmap
[type
].name
)
950 && (strcmp(ospf6
->rmap
[type
].name
, name
) == 0)) {
951 ospf6_asbr_distribute_list_update(type
);
956 int ospf6_asbr_is_asbr(struct ospf6
*o
)
958 return o
->external_table
->count
;
961 static void ospf6_asbr_redistribute_set(int type
)
963 ospf6_zebra_redistribute(type
);
966 static void ospf6_asbr_redistribute_unset(int type
)
968 struct ospf6_route
*route
;
969 struct ospf6_external_info
*info
;
971 ospf6_zebra_no_redistribute(type
);
973 for (route
= ospf6_route_head(ospf6
->external_table
); route
;
974 route
= ospf6_route_next(route
)) {
975 info
= route
->route_option
;
976 if (info
->type
!= type
)
979 ospf6_asbr_redistribute_remove(info
->type
, 0, &route
->prefix
);
982 ospf6_asbr_routemap_unset(type
);
985 /* When an area is unstubified, flood all the external LSAs in the area */
986 void ospf6_asbr_send_externals_to_area(struct ospf6_area
*oa
)
988 struct ospf6_lsa
*lsa
;
990 for (ALL_LSDB(oa
->ospf6
->lsdb
, lsa
)) {
991 if (ntohs(lsa
->header
->type
) == OSPF6_LSTYPE_AS_EXTERNAL
) {
992 zlog_debug("%s: Flooding AS-External LSA %s\n",
993 __func__
, lsa
->name
);
994 ospf6_flood_area(NULL
, lsa
, oa
);
999 void ospf6_asbr_redistribute_add(int type
, ifindex_t ifindex
,
1000 struct prefix
*prefix
, u_int nexthop_num
,
1001 struct in6_addr
*nexthop
, route_tag_t tag
)
1004 struct ospf6_route troute
;
1005 struct ospf6_external_info tinfo
;
1006 struct ospf6_route
*route
, *match
;
1007 struct ospf6_external_info
*info
;
1008 struct prefix prefix_id
;
1009 struct route_node
*node
;
1010 char pbuf
[PREFIX2STR_BUFFER
], ibuf
[16];
1011 struct listnode
*lnode
, *lnnode
;
1012 struct ospf6_area
*oa
;
1014 if (!ospf6_zebra_is_redistribute(type
))
1017 memset(&troute
, 0, sizeof(troute
));
1018 memset(&tinfo
, 0, sizeof(tinfo
));
1020 if (IS_OSPF6_DEBUG_ASBR
) {
1021 prefix2str(prefix
, pbuf
, sizeof(pbuf
));
1022 zlog_debug("Redistribute %s (%s)", pbuf
, ZROUTE_NAME(type
));
1025 /* if route-map was specified but not found, do not advertise */
1026 if (ospf6
->rmap
[type
].name
) {
1027 if (ospf6
->rmap
[type
].map
== NULL
)
1028 ospf6_asbr_routemap_update(NULL
);
1029 if (ospf6
->rmap
[type
].map
== NULL
) {
1031 "route-map \"%s\" not found, suppress redistributing",
1032 ospf6
->rmap
[type
].name
);
1037 /* apply route-map */
1038 if (ospf6
->rmap
[type
].map
) {
1039 troute
.route_option
= &tinfo
;
1040 tinfo
.ifindex
= ifindex
;
1043 ret
= route_map_apply(ospf6
->rmap
[type
].map
, prefix
, RMAP_OSPF6
,
1045 if (ret
== RMAP_DENYMATCH
) {
1046 if (IS_OSPF6_DEBUG_ASBR
)
1047 zlog_debug("Denied by route-map \"%s\"",
1048 ospf6
->rmap
[type
].name
);
1053 match
= ospf6_route_lookup(prefix
, ospf6
->external_table
);
1055 info
= match
->route_option
;
1056 /* copy result of route-map */
1057 if (ospf6
->rmap
[type
].map
) {
1058 if (troute
.path
.metric_type
)
1059 match
->path
.metric_type
=
1060 troute
.path
.metric_type
;
1061 if (troute
.path
.cost
)
1062 match
->path
.cost
= troute
.path
.cost
;
1063 if (!IN6_IS_ADDR_UNSPECIFIED(&tinfo
.forwarding
))
1064 memcpy(&info
->forwarding
, &tinfo
.forwarding
,
1065 sizeof(struct in6_addr
));
1066 info
->tag
= tinfo
.tag
;
1068 /* If there is no route-map, simply update the tag */
1074 if (nexthop_num
&& nexthop
)
1075 ospf6_route_add_nexthop(match
, ifindex
, nexthop
);
1077 ospf6_route_add_nexthop(match
, ifindex
, NULL
);
1079 /* create/update binding in external_id_table */
1080 prefix_id
.family
= AF_INET
;
1081 prefix_id
.prefixlen
= 32;
1082 prefix_id
.u
.prefix4
.s_addr
= htonl(info
->id
);
1083 node
= route_node_get(ospf6
->external_id_table
, &prefix_id
);
1086 if (IS_OSPF6_DEBUG_ASBR
) {
1087 inet_ntop(AF_INET
, &prefix_id
.u
.prefix4
, ibuf
,
1089 prefix2str(prefix
, pbuf
, sizeof(pbuf
));
1091 "Advertise as AS-External Id:%s prefix %s metric %u",
1092 ibuf
, pbuf
, match
->path
.metric_type
);
1095 match
->path
.origin
.id
= htonl(info
->id
);
1096 ospf6_as_external_lsa_originate(match
);
1100 /* create new entry */
1101 route
= ospf6_route_create();
1102 route
->type
= OSPF6_DEST_TYPE_NETWORK
;
1103 memcpy(&route
->prefix
, prefix
, sizeof(struct prefix
));
1105 info
= (struct ospf6_external_info
*)XCALLOC(
1106 MTYPE_OSPF6_EXTERNAL_INFO
, sizeof(struct ospf6_external_info
));
1107 route
->route_option
= info
;
1108 info
->id
= ospf6
->external_id
++;
1110 /* copy result of route-map */
1111 if (ospf6
->rmap
[type
].map
) {
1112 if (troute
.path
.metric_type
)
1113 route
->path
.metric_type
= troute
.path
.metric_type
;
1114 if (troute
.path
.cost
)
1115 route
->path
.cost
= troute
.path
.cost
;
1116 if (!IN6_IS_ADDR_UNSPECIFIED(&tinfo
.forwarding
))
1117 memcpy(&info
->forwarding
, &tinfo
.forwarding
,
1118 sizeof(struct in6_addr
));
1119 info
->tag
= tinfo
.tag
;
1121 /* If there is no route-map, simply set the tag */
1126 if (nexthop_num
&& nexthop
)
1127 ospf6_route_add_nexthop(route
, ifindex
, nexthop
);
1129 ospf6_route_add_nexthop(route
, ifindex
, NULL
);
1131 /* create/update binding in external_id_table */
1132 prefix_id
.family
= AF_INET
;
1133 prefix_id
.prefixlen
= 32;
1134 prefix_id
.u
.prefix4
.s_addr
= htonl(info
->id
);
1135 node
= route_node_get(ospf6
->external_id_table
, &prefix_id
);
1138 route
= ospf6_route_add(route
, ospf6
->external_table
);
1139 route
->route_option
= info
;
1141 if (IS_OSPF6_DEBUG_ASBR
) {
1142 inet_ntop(AF_INET
, &prefix_id
.u
.prefix4
, ibuf
, sizeof(ibuf
));
1143 prefix2str(prefix
, pbuf
, sizeof(pbuf
));
1144 zlog_debug("Advertise as AS-External Id:%s prefix %s metric %u",
1145 ibuf
, pbuf
, route
->path
.metric_type
);
1148 route
->path
.origin
.id
= htonl(info
->id
);
1149 ospf6_as_external_lsa_originate(route
);
1151 /* Router-Bit (ASBR Flag) may have to be updated */
1152 for (ALL_LIST_ELEMENTS(ospf6
->area_list
, lnode
, lnnode
, oa
))
1153 OSPF6_ROUTER_LSA_SCHEDULE(oa
);
1156 void ospf6_asbr_redistribute_remove(int type
, ifindex_t ifindex
,
1157 struct prefix
*prefix
)
1159 struct ospf6_route
*match
;
1160 struct ospf6_external_info
*info
= NULL
;
1161 struct route_node
*node
;
1162 struct ospf6_lsa
*lsa
;
1163 struct prefix prefix_id
;
1164 char pbuf
[PREFIX2STR_BUFFER
], ibuf
[16];
1165 struct listnode
*lnode
, *lnnode
;
1166 struct ospf6_area
*oa
;
1168 match
= ospf6_route_lookup(prefix
, ospf6
->external_table
);
1169 if (match
== NULL
) {
1170 if (IS_OSPF6_DEBUG_ASBR
) {
1171 prefix2str(prefix
, pbuf
, sizeof(pbuf
));
1172 zlog_debug("No such route %s to withdraw", pbuf
);
1177 info
= match
->route_option
;
1180 if (info
->type
!= type
) {
1181 if (IS_OSPF6_DEBUG_ASBR
) {
1182 prefix2str(prefix
, pbuf
, sizeof(pbuf
));
1183 zlog_debug("Original protocol mismatch: %s", pbuf
);
1188 if (IS_OSPF6_DEBUG_ASBR
) {
1189 prefix2str(prefix
, pbuf
, sizeof(pbuf
));
1190 inet_ntop(AF_INET
, &prefix_id
.u
.prefix4
, ibuf
, sizeof(ibuf
));
1191 zlog_debug("Withdraw %s (AS-External Id:%s)", pbuf
, ibuf
);
1194 lsa
= ospf6_lsdb_lookup(htons(OSPF6_LSTYPE_AS_EXTERNAL
),
1195 htonl(info
->id
), ospf6
->router_id
, ospf6
->lsdb
);
1197 ospf6_lsa_purge(lsa
);
1199 /* remove binding in external_id_table */
1200 prefix_id
.family
= AF_INET
;
1201 prefix_id
.prefixlen
= 32;
1202 prefix_id
.u
.prefix4
.s_addr
= htonl(info
->id
);
1203 node
= route_node_lookup(ospf6
->external_id_table
, &prefix_id
);
1206 route_unlock_node(node
); /* to free the lookup lock */
1207 route_unlock_node(node
); /* to free the original lock */
1209 ospf6_route_remove(match
, ospf6
->external_table
);
1210 XFREE(MTYPE_OSPF6_EXTERNAL_INFO
, info
);
1212 /* Router-Bit (ASBR Flag) may have to be updated */
1213 for (ALL_LIST_ELEMENTS(ospf6
->area_list
, lnode
, lnnode
, oa
))
1214 OSPF6_ROUTER_LSA_SCHEDULE(oa
);
1217 DEFUN (ospf6_redistribute
,
1218 ospf6_redistribute_cmd
,
1219 "redistribute " FRR_REDIST_STR_OSPF6D
,
1221 FRR_REDIST_HELP_STR_OSPF6D
)
1225 char *proto
= argv
[argc
- 1]->text
;
1226 type
= proto_redistnum(AFI_IP6
, proto
);
1228 return CMD_WARNING_CONFIG_FAILED
;
1230 ospf6_asbr_redistribute_unset(type
);
1231 ospf6_asbr_redistribute_set(type
);
1235 DEFUN (ospf6_redistribute_routemap
,
1236 ospf6_redistribute_routemap_cmd
,
1237 "redistribute " FRR_REDIST_STR_OSPF6D
" route-map WORD",
1239 FRR_REDIST_HELP_STR_OSPF6D
1240 "Route map reference\n"
1243 int idx_protocol
= 1;
1247 char *proto
= argv
[idx_protocol
]->text
;
1248 type
= proto_redistnum(AFI_IP6
, proto
);
1250 return CMD_WARNING_CONFIG_FAILED
;
1252 ospf6_asbr_redistribute_unset(type
);
1253 ospf6_asbr_routemap_set(type
, argv
[idx_word
]->arg
);
1254 ospf6_asbr_redistribute_set(type
);
1258 DEFUN (no_ospf6_redistribute
,
1259 no_ospf6_redistribute_cmd
,
1260 "no redistribute " FRR_REDIST_STR_OSPF6D
" [route-map WORD]",
1263 FRR_REDIST_HELP_STR_OSPF6D
1264 "Route map reference\n"
1267 int idx_protocol
= 2;
1270 char *proto
= argv
[idx_protocol
]->text
;
1271 type
= proto_redistnum(AFI_IP6
, proto
);
1273 return CMD_WARNING_CONFIG_FAILED
;
1275 ospf6_asbr_redistribute_unset(type
);
1280 int ospf6_redistribute_config_write(struct vty
*vty
)
1284 for (type
= 0; type
< ZEBRA_ROUTE_MAX
; type
++) {
1285 if (type
== ZEBRA_ROUTE_OSPF6
)
1287 if (!ospf6_zebra_is_redistribute(type
))
1290 if (ospf6
->rmap
[type
].name
)
1291 vty_out(vty
, " redistribute %s route-map %s\n",
1292 ZROUTE_NAME(type
), ospf6
->rmap
[type
].name
);
1294 vty_out(vty
, " redistribute %s\n", ZROUTE_NAME(type
));
1300 static void ospf6_redistribute_show_config(struct vty
*vty
)
1303 int nroute
[ZEBRA_ROUTE_MAX
];
1305 struct ospf6_route
*route
;
1306 struct ospf6_external_info
*info
;
1309 for (type
= 0; type
< ZEBRA_ROUTE_MAX
; type
++)
1311 for (route
= ospf6_route_head(ospf6
->external_table
); route
;
1312 route
= ospf6_route_next(route
)) {
1313 info
= route
->route_option
;
1314 nroute
[info
->type
]++;
1318 vty_out(vty
, "Redistributing External Routes from:\n");
1319 for (type
= 0; type
< ZEBRA_ROUTE_MAX
; type
++) {
1320 if (type
== ZEBRA_ROUTE_OSPF6
)
1322 if (!ospf6_zebra_is_redistribute(type
))
1325 if (ospf6
->rmap
[type
].name
)
1326 vty_out(vty
, " %d: %s with route-map \"%s\"%s\n",
1327 nroute
[type
], ZROUTE_NAME(type
),
1328 ospf6
->rmap
[type
].name
,
1329 (ospf6
->rmap
[type
].map
? ""
1330 : " (not found !)"));
1332 vty_out(vty
, " %d: %s\n", nroute
[type
],
1335 vty_out(vty
, "Total %d routes\n", total
);
1339 /* Routemap Functions */
1340 static route_map_result_t
1341 ospf6_routemap_rule_match_address_prefixlist(void *rule
, struct prefix
*prefix
,
1342 route_map_object_t type
,
1345 struct prefix_list
*plist
;
1347 if (type
!= RMAP_OSPF6
)
1348 return RMAP_NOMATCH
;
1350 plist
= prefix_list_lookup(AFI_IP6
, (char *)rule
);
1352 return RMAP_NOMATCH
;
1354 return (prefix_list_apply(plist
, prefix
) == PREFIX_DENY
? RMAP_NOMATCH
1359 ospf6_routemap_rule_match_address_prefixlist_compile(const char *arg
)
1361 return XSTRDUP(MTYPE_ROUTE_MAP_COMPILED
, arg
);
1364 static void ospf6_routemap_rule_match_address_prefixlist_free(void *rule
)
1366 XFREE(MTYPE_ROUTE_MAP_COMPILED
, rule
);
1369 struct route_map_rule_cmd ospf6_routemap_rule_match_address_prefixlist_cmd
= {
1370 "ipv6 address prefix-list",
1371 ospf6_routemap_rule_match_address_prefixlist
,
1372 ospf6_routemap_rule_match_address_prefixlist_compile
,
1373 ospf6_routemap_rule_match_address_prefixlist_free
,
1376 /* `match interface IFNAME' */
1377 /* Match function should return 1 if match is success else return
1379 static route_map_result_t
1380 ospf6_routemap_rule_match_interface(void *rule
, struct prefix
*prefix
,
1381 route_map_object_t type
, void *object
)
1383 struct interface
*ifp
;
1384 struct ospf6_external_info
*ei
;
1386 if (type
== RMAP_OSPF6
) {
1387 ei
= ((struct ospf6_route
*)object
)->route_option
;
1388 ifp
= if_lookup_by_name((char *)rule
, VRF_DEFAULT
);
1390 if (ifp
!= NULL
&& ei
->ifindex
== ifp
->ifindex
)
1394 return RMAP_NOMATCH
;
1397 /* Route map `interface' match statement. `arg' should be
1399 static void *ospf6_routemap_rule_match_interface_compile(const char *arg
)
1401 return XSTRDUP(MTYPE_ROUTE_MAP_COMPILED
, arg
);
1404 /* Free route map's compiled `interface' value. */
1405 static void ospf6_routemap_rule_match_interface_free(void *rule
)
1407 XFREE(MTYPE_ROUTE_MAP_COMPILED
, rule
);
1410 /* Route map commands for interface matching. */
1411 struct route_map_rule_cmd ospf6_routemap_rule_match_interface_cmd
= {
1412 "interface", ospf6_routemap_rule_match_interface
,
1413 ospf6_routemap_rule_match_interface_compile
,
1414 ospf6_routemap_rule_match_interface_free
};
1416 /* Match function for matching route tags */
1417 static route_map_result_t
ospf6_routemap_rule_match_tag(void *rule
,
1418 struct prefix
*prefix
,
1419 route_map_object_t type
,
1422 route_tag_t
*tag
= rule
;
1423 struct ospf6_route
*route
= object
;
1424 struct ospf6_external_info
*info
= route
->route_option
;
1426 if (type
== RMAP_OSPF6
&& info
->tag
== *tag
)
1429 return RMAP_NOMATCH
;
1432 static struct route_map_rule_cmd ospf6_routemap_rule_match_tag_cmd
= {
1433 "tag", ospf6_routemap_rule_match_tag
, route_map_rule_tag_compile
,
1434 route_map_rule_tag_free
,
1437 static route_map_result_t
1438 ospf6_routemap_rule_set_metric_type(void *rule
, struct prefix
*prefix
,
1439 route_map_object_t type
, void *object
)
1441 char *metric_type
= rule
;
1442 struct ospf6_route
*route
= object
;
1444 if (type
!= RMAP_OSPF6
)
1447 if (strcmp(metric_type
, "type-2") == 0)
1448 route
->path
.metric_type
= 2;
1450 route
->path
.metric_type
= 1;
1455 static void *ospf6_routemap_rule_set_metric_type_compile(const char *arg
)
1457 if (strcmp(arg
, "type-2") && strcmp(arg
, "type-1"))
1459 return XSTRDUP(MTYPE_ROUTE_MAP_COMPILED
, arg
);
1462 static void ospf6_routemap_rule_set_metric_type_free(void *rule
)
1464 XFREE(MTYPE_ROUTE_MAP_COMPILED
, rule
);
1467 struct route_map_rule_cmd ospf6_routemap_rule_set_metric_type_cmd
= {
1468 "metric-type", ospf6_routemap_rule_set_metric_type
,
1469 ospf6_routemap_rule_set_metric_type_compile
,
1470 ospf6_routemap_rule_set_metric_type_free
,
1473 static route_map_result_t
1474 ospf6_routemap_rule_set_metric(void *rule
, struct prefix
*prefix
,
1475 route_map_object_t type
, void *object
)
1477 char *metric
= rule
;
1478 struct ospf6_route
*route
= object
;
1480 if (type
!= RMAP_OSPF6
)
1483 route
->path
.cost
= atoi(metric
);
1487 static void *ospf6_routemap_rule_set_metric_compile(const char *arg
)
1491 metric
= strtoul(arg
, &endp
, 0);
1492 if (metric
> OSPF_LS_INFINITY
|| *endp
!= '\0')
1494 return XSTRDUP(MTYPE_ROUTE_MAP_COMPILED
, arg
);
1497 static void ospf6_routemap_rule_set_metric_free(void *rule
)
1499 XFREE(MTYPE_ROUTE_MAP_COMPILED
, rule
);
1502 struct route_map_rule_cmd ospf6_routemap_rule_set_metric_cmd
= {
1503 "metric", ospf6_routemap_rule_set_metric
,
1504 ospf6_routemap_rule_set_metric_compile
,
1505 ospf6_routemap_rule_set_metric_free
,
1508 static route_map_result_t
1509 ospf6_routemap_rule_set_forwarding(void *rule
, struct prefix
*prefix
,
1510 route_map_object_t type
, void *object
)
1512 char *forwarding
= rule
;
1513 struct ospf6_route
*route
= object
;
1514 struct ospf6_external_info
*info
= route
->route_option
;
1516 if (type
!= RMAP_OSPF6
)
1519 if (inet_pton(AF_INET6
, forwarding
, &info
->forwarding
) != 1) {
1520 memset(&info
->forwarding
, 0, sizeof(struct in6_addr
));
1527 static void *ospf6_routemap_rule_set_forwarding_compile(const char *arg
)
1530 if (inet_pton(AF_INET6
, arg
, &a
) != 1)
1532 return XSTRDUP(MTYPE_ROUTE_MAP_COMPILED
, arg
);
1535 static void ospf6_routemap_rule_set_forwarding_free(void *rule
)
1537 XFREE(MTYPE_ROUTE_MAP_COMPILED
, rule
);
1540 struct route_map_rule_cmd ospf6_routemap_rule_set_forwarding_cmd
= {
1541 "forwarding-address", ospf6_routemap_rule_set_forwarding
,
1542 ospf6_routemap_rule_set_forwarding_compile
,
1543 ospf6_routemap_rule_set_forwarding_free
,
1546 static route_map_result_t
ospf6_routemap_rule_set_tag(void *rule
,
1547 struct prefix
*prefix
,
1548 route_map_object_t type
,
1551 route_tag_t
*tag
= rule
;
1552 struct ospf6_route
*route
= object
;
1553 struct ospf6_external_info
*info
= route
->route_option
;
1555 if (type
!= RMAP_OSPF6
)
1562 static struct route_map_rule_cmd ospf6_routemap_rule_set_tag_cmd
= {
1563 "tag", ospf6_routemap_rule_set_tag
, route_map_rule_tag_compile
,
1564 route_map_rule_tag_free
,
1567 static int route_map_command_status(struct vty
*vty
, int ret
)
1570 case RMAP_RULE_MISSING
:
1571 vty_out(vty
, "OSPF6 Can't find rule.\n");
1572 return CMD_WARNING_CONFIG_FAILED
;
1574 case RMAP_COMPILE_ERROR
:
1575 vty_out(vty
, "OSPF6 Argument is malformed.\n");
1576 return CMD_WARNING_CONFIG_FAILED
;
1578 case RMAP_COMPILE_SUCCESS
:
1585 /* add "set metric-type" */
1586 DEFUN (ospf6_routemap_set_metric_type
,
1587 ospf6_routemap_set_metric_type_cmd
,
1588 "set metric-type <type-1|type-2>",
1591 "OSPF6 external type 1 metric\n"
1592 "OSPF6 external type 2 metric\n")
1594 VTY_DECLVAR_CONTEXT(route_map_index
, route_map_index
);
1595 int idx_external
= 2;
1596 int ret
= route_map_add_set(route_map_index
, "metric-type",
1597 argv
[idx_external
]->arg
);
1598 return route_map_command_status(vty
, ret
);
1601 /* delete "set metric-type" */
1602 DEFUN (ospf6_routemap_no_set_metric_type
,
1603 ospf6_routemap_no_set_metric_type_cmd
,
1604 "no set metric-type [<type-1|type-2>]",
1608 "OSPF6 external type 1 metric\n"
1609 "OSPF6 external type 2 metric\n")
1611 VTY_DECLVAR_CONTEXT(route_map_index
, route_map_index
);
1612 char *ext
= (argc
== 4) ? argv
[3]->text
: NULL
;
1613 int ret
= route_map_delete_set(route_map_index
, "metric-type", ext
);
1614 return route_map_command_status(vty
, ret
);
1617 /* add "set forwarding-address" */
1618 DEFUN (ospf6_routemap_set_forwarding
,
1619 ospf6_routemap_set_forwarding_cmd
,
1620 "set forwarding-address X:X::X:X",
1622 "Forwarding Address\n"
1625 VTY_DECLVAR_CONTEXT(route_map_index
, route_map_index
);
1627 int ret
= route_map_add_set(route_map_index
, "forwarding-address",
1628 argv
[idx_ipv6
]->arg
);
1629 return route_map_command_status(vty
, ret
);
1632 /* delete "set forwarding-address" */
1633 DEFUN (ospf6_routemap_no_set_forwarding
,
1634 ospf6_routemap_no_set_forwarding_cmd
,
1635 "no set forwarding-address X:X::X:X",
1638 "Forwarding Address\n"
1641 VTY_DECLVAR_CONTEXT(route_map_index
, route_map_index
);
1643 int ret
= route_map_delete_set(route_map_index
, "forwarding-address",
1644 argv
[idx_ipv6
]->arg
);
1645 return route_map_command_status(vty
, ret
);
1648 static void ospf6_routemap_init(void)
1652 route_map_add_hook(ospf6_asbr_routemap_update
);
1653 route_map_delete_hook(ospf6_asbr_routemap_update
);
1654 route_map_event_hook(ospf6_asbr_routemap_event
);
1656 route_map_set_metric_hook(generic_set_add
);
1657 route_map_no_set_metric_hook(generic_set_delete
);
1659 route_map_match_tag_hook(generic_match_add
);
1660 route_map_no_match_tag_hook(generic_match_delete
);
1662 route_map_match_ipv6_address_prefix_list_hook(generic_match_add
);
1663 route_map_no_match_ipv6_address_prefix_list_hook(generic_match_delete
);
1665 route_map_match_interface_hook(generic_match_add
);
1666 route_map_no_match_interface_hook(generic_match_delete
);
1668 route_map_install_match(
1669 &ospf6_routemap_rule_match_address_prefixlist_cmd
);
1670 route_map_install_match(&ospf6_routemap_rule_match_interface_cmd
);
1671 route_map_install_match(&ospf6_routemap_rule_match_tag_cmd
);
1673 route_map_install_set(&ospf6_routemap_rule_set_metric_type_cmd
);
1674 route_map_install_set(&ospf6_routemap_rule_set_metric_cmd
);
1675 route_map_install_set(&ospf6_routemap_rule_set_forwarding_cmd
);
1676 route_map_install_set(&ospf6_routemap_rule_set_tag_cmd
);
1678 /* ASE Metric Type (e.g. Type-1/Type-2) */
1679 install_element(RMAP_NODE
, &ospf6_routemap_set_metric_type_cmd
);
1680 install_element(RMAP_NODE
, &ospf6_routemap_no_set_metric_type_cmd
);
1683 install_element(RMAP_NODE
, &ospf6_routemap_set_forwarding_cmd
);
1684 install_element(RMAP_NODE
, &ospf6_routemap_no_set_forwarding_cmd
);
1688 /* Display functions */
1689 static char *ospf6_as_external_lsa_get_prefix_str(struct ospf6_lsa
*lsa
,
1690 char *buf
, int buflen
,
1693 struct ospf6_as_external_lsa
*external
;
1694 struct in6_addr in6
;
1695 int prefix_length
= 0;
1698 external
= (struct ospf6_as_external_lsa
*)OSPF6_LSA_HEADER_END(
1702 ospf6_prefix_in6_addr(&in6
, &external
->prefix
);
1703 prefix_length
= external
->prefix
.prefix_length
;
1705 in6
= *((struct in6_addr
1706 *)((caddr_t
)external
1708 ospf6_as_external_lsa
)
1709 + OSPF6_PREFIX_SPACE(
1714 inet_ntop(AF_INET6
, &in6
, buf
, buflen
);
1716 sprintf(&buf
[strlen(buf
)], "/%d",
1723 static int ospf6_as_external_lsa_show(struct vty
*vty
, struct ospf6_lsa
*lsa
)
1725 struct ospf6_as_external_lsa
*external
;
1728 assert(lsa
->header
);
1729 external
= (struct ospf6_as_external_lsa
*)OSPF6_LSA_HEADER_END(
1733 snprintf(buf
, sizeof(buf
), "%c%c%c",
1734 (CHECK_FLAG(external
->bits_metric
, OSPF6_ASBR_BIT_E
) ? 'E'
1736 (CHECK_FLAG(external
->bits_metric
, OSPF6_ASBR_BIT_F
) ? 'F'
1738 (CHECK_FLAG(external
->bits_metric
, OSPF6_ASBR_BIT_T
) ? 'T'
1741 vty_out(vty
, " Bits: %s\n", buf
);
1742 vty_out(vty
, " Metric: %5lu\n",
1743 (u_long
)OSPF6_ASBR_METRIC(external
));
1745 ospf6_prefix_options_printbuf(external
->prefix
.prefix_options
, buf
,
1747 vty_out(vty
, " Prefix Options: %s\n", buf
);
1749 vty_out(vty
, " Referenced LSType: %d\n",
1750 ntohs(external
->prefix
.prefix_refer_lstype
));
1752 vty_out(vty
, " Prefix: %s\n",
1753 ospf6_as_external_lsa_get_prefix_str(lsa
, buf
, sizeof(buf
), 0));
1755 /* Forwarding-Address */
1756 if (CHECK_FLAG(external
->bits_metric
, OSPF6_ASBR_BIT_F
)) {
1757 vty_out(vty
, " Forwarding-Address: %s\n",
1758 ospf6_as_external_lsa_get_prefix_str(lsa
, buf
,
1763 if (CHECK_FLAG(external
->bits_metric
, OSPF6_ASBR_BIT_T
)) {
1764 vty_out(vty
, " Tag: %" ROUTE_TAG_PRI
"\n",
1765 ospf6_as_external_lsa_get_tag(lsa
));
1771 static void ospf6_asbr_external_route_show(struct vty
*vty
,
1772 struct ospf6_route
*route
)
1774 struct ospf6_external_info
*info
= route
->route_option
;
1775 char prefix
[PREFIX2STR_BUFFER
], id
[16], forwarding
[64];
1778 prefix2str(&route
->prefix
, prefix
, sizeof(prefix
));
1779 tmp_id
= ntohl(info
->id
);
1780 inet_ntop(AF_INET
, &tmp_id
, id
, sizeof(id
));
1781 if (!IN6_IS_ADDR_UNSPECIFIED(&info
->forwarding
))
1782 inet_ntop(AF_INET6
, &info
->forwarding
, forwarding
,
1783 sizeof(forwarding
));
1785 snprintf(forwarding
, sizeof(forwarding
), ":: (ifindex %d)",
1786 ospf6_route_get_first_nh_index(route
));
1788 vty_out(vty
, "%c %-32s %-15s type-%d %5lu %s\n",
1789 zebra_route_char(info
->type
), prefix
, id
,
1790 route
->path
.metric_type
,
1791 (u_long
)(route
->path
.metric_type
== 2 ? route
->path
.u
.cost_e2
1792 : route
->path
.cost
),
1796 DEFUN (show_ipv6_ospf6_redistribute
,
1797 show_ipv6_ospf6_redistribute_cmd
,
1798 "show ipv6 ospf6 redistribute",
1802 "redistributing External information\n"
1805 struct ospf6_route
*route
;
1807 OSPF6_CMD_CHECK_RUNNING();
1809 ospf6_redistribute_show_config(vty
);
1811 for (route
= ospf6_route_head(ospf6
->external_table
); route
;
1812 route
= ospf6_route_next(route
))
1813 ospf6_asbr_external_route_show(vty
, route
);
1818 struct ospf6_lsa_handler as_external_handler
= {
1819 .lh_type
= OSPF6_LSTYPE_AS_EXTERNAL
,
1820 .lh_name
= "AS-External",
1821 .lh_short_name
= "ASE",
1822 .lh_show
= ospf6_as_external_lsa_show
,
1823 .lh_get_prefix_str
= ospf6_as_external_lsa_get_prefix_str
,
1826 void ospf6_asbr_init(void)
1828 ospf6_routemap_init();
1830 ospf6_install_lsa_handler(&as_external_handler
);
1832 install_element(VIEW_NODE
, &show_ipv6_ospf6_redistribute_cmd
);
1834 install_element(OSPF6_NODE
, &ospf6_redistribute_cmd
);
1835 install_element(OSPF6_NODE
, &ospf6_redistribute_routemap_cmd
);
1836 install_element(OSPF6_NODE
, &no_ospf6_redistribute_cmd
);
1839 void ospf6_asbr_redistribute_reset(void)
1843 for (type
= 0; type
< ZEBRA_ROUTE_MAX
; type
++) {
1844 if (type
== ZEBRA_ROUTE_OSPF6
)
1846 if (ospf6_zebra_is_redistribute(type
))
1847 ospf6_asbr_redistribute_unset(type
);
1851 void ospf6_asbr_terminate(void)
1853 /* Cleanup route maps */
1854 route_map_add_hook(NULL
);
1855 route_map_delete_hook(NULL
);
1856 route_map_event_hook(NULL
);
1860 DEFUN (debug_ospf6_asbr
,
1861 debug_ospf6_asbr_cmd
,
1865 "Debug OSPFv3 ASBR function\n"
1868 OSPF6_DEBUG_ASBR_ON();
1872 DEFUN (no_debug_ospf6_asbr
,
1873 no_debug_ospf6_asbr_cmd
,
1874 "no debug ospf6 asbr",
1878 "Debug OSPFv3 ASBR function\n"
1881 OSPF6_DEBUG_ASBR_OFF();
1885 int config_write_ospf6_debug_asbr(struct vty
*vty
)
1887 if (IS_OSPF6_DEBUG_ASBR
)
1888 vty_out(vty
, "debug ospf6 asbr\n");
1892 void install_element_ospf6_debug_asbr()
1894 install_element(ENABLE_NODE
, &debug_ospf6_asbr_cmd
);
1895 install_element(ENABLE_NODE
, &no_debug_ospf6_asbr_cmd
);
1896 install_element(CONFIG_NODE
, &debug_ospf6_asbr_cmd
);
1897 install_element(CONFIG_NODE
, &no_debug_ospf6_asbr_cmd
);