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
);
266 listnode_delete(old_route
->paths
, o_path
);
267 ospf6_path_free(o_path
);
268 route_updated
= true;
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 for (ALL_LIST_ELEMENTS(old_route
->paths
,
277 anode
, anext
, o_path
)) {
278 ospf6_merge_nexthops(
282 /* Update RIB/FIB with effective
285 if (ospf6
->route_table
->hook_add
)
286 (*ospf6
->route_table
->hook_add
)
289 if (old_route
->path
.origin
.id
290 == route
->path
.origin
.id
291 && old_route
->path
.origin
.adv_router
292 == route
->path
.origin
294 struct ospf6_path
*h_path
;
296 h_path
= (struct ospf6_path
*)
297 listgetdata(listhead(
299 old_route
->path
.origin
.type
=
301 old_route
->path
.origin
.id
=
303 old_route
->path
.origin
.adv_router
=
304 h_path
->origin
.adv_router
;
308 if (IS_OSPF6_DEBUG_EXAMIN(AS_EXTERNAL
)) {
309 prefix2str(&old_route
->prefix
, buf
,
312 "%s: route %s old cost %u new cost %u, delete old entry.",
313 __PRETTY_FUNCTION__
, buf
,
314 old_route
->path
.cost
,
317 ospf6_route_remove(old_route
,
327 for (old_route
= old
; old_route
; old_route
= old_route
->next
) {
329 /* Current and New Route prefix or route type
330 * is not same skip this current node.
332 if (!ospf6_route_is_same(old_route
, route
)
333 || (old_route
->path
.type
!= route
->path
.type
))
336 /* Old Route and New Route have Equal Cost, Merge NHs */
337 if ((old_route
->path
.cost
== route
->path
.cost
)
338 && (old_route
->path
.u
.cost_e2
== route
->path
.u
.cost_e2
)) {
340 if (IS_OSPF6_DEBUG_EXAMIN(AS_EXTERNAL
)) {
341 prefix2str(&old_route
->prefix
, buf
,
344 "%s: old route %s path cost %u e2 %u",
345 __PRETTY_FUNCTION__
, buf
,
346 old_route
->path
.cost
,
347 old_route
->path
.u
.cost_e2
);
350 /* check if this path exists already in
351 * route->paths list, if so, replace nh_list
354 for (ALL_LIST_ELEMENTS_RO(old_route
->paths
, anode
,
356 if (o_path
->area_id
== route
->path
.area_id
357 && (memcmp(&(o_path
)->origin
,
358 &(route
)->path
.origin
,
359 sizeof(struct ospf6_ls_origin
))
363 /* If path is not found in old_route paths's list,
364 * add a new path to route paths list and merge
365 * nexthops in route->path->nh_list.
366 * Otherwise replace existing path's nh_list.
368 if (o_path
== NULL
) {
369 ecmp_path
= ospf6_path_dup(&route
->path
);
371 /* Add a nh_list to new ecmp path */
372 ospf6_copy_nexthops(ecmp_path
->nh_list
,
375 /* Add the new path to route's path list */
376 listnode_add_sort(old_route
->paths
, ecmp_path
);
378 if (IS_OSPF6_DEBUG_EXAMIN(AS_EXTERNAL
)) {
379 prefix2str(&route
->prefix
, buf
,
382 "%s: route %s another path added with nh %u, effective paths %u nh %u",
383 __PRETTY_FUNCTION__
, buf
,
384 listcount(ecmp_path
->nh_list
),
390 listcount(old_route
->nh_list
));
393 list_delete_all_node(o_path
->nh_list
);
394 ospf6_copy_nexthops(o_path
->nh_list
,
398 /* Reset nexthop lists, rebuild from brouter table
399 * for each adv. router.
401 list_delete_all_node(old_route
->nh_list
);
403 for (ALL_LIST_ELEMENTS_RO(old_route
->paths
, anode
,
405 struct ospf6_route
*asbr_entry
;
407 asbr_entry
= ospf6_route_lookup(
409 ospf6
->brouter_table
);
410 if (asbr_entry
== NULL
) {
411 if (IS_OSPF6_DEBUG_EXAMIN(
413 prefix2str(&old_route
->prefix
,
415 zlog_debug("%s: ls_prfix %s asbr_entry not found.",
421 ospf6_route_merge_nexthops(old_route
,
425 if (IS_OSPF6_DEBUG_EXAMIN(AS_EXTERNAL
)) {
426 prefix2str(&route
->prefix
, buf
, sizeof(buf
));
427 zlog_debug("%s: route %s with effective paths %u nh %u",
428 __PRETTY_FUNCTION__
, buf
,
430 listcount(old_route
->paths
) : 0,
432 listcount(old_route
->nh_list
) : 0);
436 if (ospf6
->route_table
->hook_add
)
437 (*ospf6
->route_table
->hook_add
)(old_route
);
439 /* Delete the new route its info added to existing
442 ospf6_route_delete(route
);
449 /* Add new route to existing node in ospf6 route table. */
450 ospf6_route_add(route
, ospf6
->route_table
);
454 void ospf6_asbr_lsa_add(struct ospf6_lsa
*lsa
)
456 struct ospf6_as_external_lsa
*external
;
457 struct prefix asbr_id
;
458 struct ospf6_route
*asbr_entry
, *route
, *old
;
459 struct ospf6_path
*path
;
460 char buf
[PREFIX2STR_BUFFER
];
462 external
= (struct ospf6_as_external_lsa
*)OSPF6_LSA_HEADER_END(
465 if (IS_OSPF6_DEBUG_EXAMIN(AS_EXTERNAL
))
466 zlog_debug("Calculate AS-External route for %s", lsa
->name
);
468 if (lsa
->header
->adv_router
== ospf6
->router_id
) {
469 if (IS_OSPF6_DEBUG_EXAMIN(AS_EXTERNAL
))
470 zlog_debug("Ignore self-originated AS-External-LSA");
474 if (OSPF6_ASBR_METRIC(external
) == OSPF_LS_INFINITY
) {
475 if (IS_OSPF6_DEBUG_EXAMIN(AS_EXTERNAL
))
476 zlog_debug("Ignore LSA with LSInfinity Metric");
480 if (CHECK_FLAG(external
->prefix
.prefix_options
,
481 OSPF6_PREFIX_OPTION_NU
)) {
482 if (IS_OSPF6_DEBUG_EXAMIN(AS_EXTERNAL
))
483 zlog_debug("Ignore LSA with NU bit set Metric");
487 ospf6_linkstate_prefix(lsa
->header
->adv_router
, htonl(0), &asbr_id
);
488 asbr_entry
= ospf6_route_lookup(&asbr_id
, ospf6
->brouter_table
);
489 if (asbr_entry
== NULL
490 || !CHECK_FLAG(asbr_entry
->path
.router_bits
, OSPF6_ROUTER_BIT_E
)) {
491 if (IS_OSPF6_DEBUG_EXAMIN(AS_EXTERNAL
)) {
492 prefix2str(&asbr_id
, buf
, sizeof(buf
));
493 zlog_debug("ASBR entry not found: %s", buf
);
498 route
= ospf6_route_create();
499 route
->type
= OSPF6_DEST_TYPE_NETWORK
;
500 route
->prefix
.family
= AF_INET6
;
501 route
->prefix
.prefixlen
= external
->prefix
.prefix_length
;
502 ospf6_prefix_in6_addr(&route
->prefix
.u
.prefix6
, &external
->prefix
);
504 route
->path
.area_id
= asbr_entry
->path
.area_id
;
505 route
->path
.origin
.type
= lsa
->header
->type
;
506 route
->path
.origin
.id
= lsa
->header
->id
;
507 route
->path
.origin
.adv_router
= lsa
->header
->adv_router
;
508 route
->path
.prefix_options
= external
->prefix
.prefix_options
;
509 memcpy(&route
->path
.ls_prefix
, &asbr_id
, sizeof(struct prefix
));
511 if (CHECK_FLAG(external
->bits_metric
, OSPF6_ASBR_BIT_E
)) {
512 route
->path
.type
= OSPF6_PATH_TYPE_EXTERNAL2
;
513 route
->path
.metric_type
= 2;
514 route
->path
.cost
= asbr_entry
->path
.cost
;
515 route
->path
.u
.cost_e2
= OSPF6_ASBR_METRIC(external
);
517 route
->path
.type
= OSPF6_PATH_TYPE_EXTERNAL1
;
518 route
->path
.metric_type
= 1;
520 asbr_entry
->path
.cost
+ OSPF6_ASBR_METRIC(external
);
521 route
->path
.u
.cost_e2
= 0;
524 route
->path
.tag
= ospf6_as_external_lsa_get_tag(lsa
);
526 ospf6_route_copy_nexthops(route
, asbr_entry
);
528 path
= ospf6_path_dup(&route
->path
);
529 ospf6_copy_nexthops(path
->nh_list
, asbr_entry
->nh_list
);
530 listnode_add_sort(route
->paths
, path
);
533 if (IS_OSPF6_DEBUG_EXAMIN(AS_EXTERNAL
)) {
534 prefix2str(&route
->prefix
, buf
, sizeof(buf
));
535 zlog_debug("%s: AS-External %u route add %s cost %u(%u) nh %u",
537 (route
->path
.type
== OSPF6_PATH_TYPE_EXTERNAL1
) ? 1
539 buf
, route
->path
.cost
, route
->path
.u
.cost_e2
,
540 listcount(route
->nh_list
));
543 old
= ospf6_route_lookup(&route
->prefix
, ospf6
->route_table
);
545 /* Add the new route to ospf6 instance route table. */
546 ospf6_route_add(route
, ospf6
->route_table
);
549 * ECMP: Keep new equal preference path in current
550 * route's path list, update zebra with new effective
551 * list along with addition of ECMP path.
553 ospf6_asbr_update_route_ecmp_path(old
, route
);
557 void ospf6_asbr_lsa_remove(struct ospf6_lsa
*lsa
,
558 struct ospf6_route
*asbr_entry
)
560 struct ospf6_as_external_lsa
*external
;
561 struct prefix prefix
;
562 struct ospf6_route
*route
, *nroute
, *route_to_del
;
563 char buf
[PREFIX2STR_BUFFER
];
565 external
= (struct ospf6_as_external_lsa
*)OSPF6_LSA_HEADER_END(
568 if (IS_OSPF6_DEBUG_EXAMIN(AS_EXTERNAL
))
569 zlog_debug("Withdraw AS-External route for %s", lsa
->name
);
571 if (lsa
->header
->adv_router
== ospf6
->router_id
) {
572 if (IS_OSPF6_DEBUG_EXAMIN(AS_EXTERNAL
))
573 zlog_debug("Ignore self-originated AS-External-LSA");
577 route_to_del
= ospf6_route_create();
578 route_to_del
->type
= OSPF6_DEST_TYPE_NETWORK
;
579 route_to_del
->prefix
.family
= AF_INET6
;
580 route_to_del
->prefix
.prefixlen
= external
->prefix
.prefix_length
;
581 ospf6_prefix_in6_addr(&route_to_del
->prefix
.u
.prefix6
,
584 route_to_del
->path
.origin
.type
= lsa
->header
->type
;
585 route_to_del
->path
.origin
.id
= lsa
->header
->id
;
586 route_to_del
->path
.origin
.adv_router
= lsa
->header
->adv_router
;
589 route_to_del
->path
.area_id
= asbr_entry
->path
.area_id
;
590 if (CHECK_FLAG(external
->bits_metric
, OSPF6_ASBR_BIT_E
)) {
591 route_to_del
->path
.type
= OSPF6_PATH_TYPE_EXTERNAL2
;
592 route_to_del
->path
.metric_type
= 2;
593 route_to_del
->path
.cost
= asbr_entry
->path
.cost
;
594 route_to_del
->path
.u
.cost_e2
=
595 OSPF6_ASBR_METRIC(external
);
597 route_to_del
->path
.type
= OSPF6_PATH_TYPE_EXTERNAL1
;
598 route_to_del
->path
.metric_type
= 1;
599 route_to_del
->path
.cost
= asbr_entry
->path
.cost
600 + OSPF6_ASBR_METRIC(external
);
601 route_to_del
->path
.u
.cost_e2
= 0;
605 memset(&prefix
, 0, sizeof(struct prefix
));
606 prefix
.family
= AF_INET6
;
607 prefix
.prefixlen
= external
->prefix
.prefix_length
;
608 ospf6_prefix_in6_addr(&prefix
.u
.prefix6
, &external
->prefix
);
610 route
= ospf6_route_lookup(&prefix
, ospf6
->route_table
);
612 if (IS_OSPF6_DEBUG_EXAMIN(AS_EXTERNAL
)) {
613 prefix2str(&prefix
, buf
, sizeof(buf
));
614 zlog_debug("AS-External route %s not found", buf
);
617 ospf6_route_delete(route_to_del
);
621 if (IS_OSPF6_DEBUG_EXAMIN(AS_EXTERNAL
)) {
622 prefix2str(&prefix
, buf
, sizeof(buf
));
624 "%s: Current route %s cost %u e2 %u, route to del cost %u e2 %u",
625 __PRETTY_FUNCTION__
, buf
, route
->path
.cost
,
626 route
->path
.u
.cost_e2
, route_to_del
->path
.cost
,
627 route_to_del
->path
.u
.cost_e2
);
630 for (ospf6_route_lock(route
);
631 route
&& ospf6_route_is_prefix(&prefix
, route
); route
= nroute
) {
632 nroute
= ospf6_route_next(route
);
634 if (route
->type
!= OSPF6_DEST_TYPE_NETWORK
)
637 /* Route has multiple ECMP paths, remove matching
638 * path. Update current route's effective nh list
639 * after removal of one of the path.
641 if (listcount(route
->paths
) > 1) {
642 struct listnode
*anode
, *anext
;
643 struct listnode
*nnode
, *rnode
, *rnext
;
644 struct ospf6_nexthop
*nh
, *rnh
;
645 struct ospf6_path
*o_path
;
646 bool nh_updated
= false;
648 /* Iterate all paths of route to find maching with LSA
649 * remove from route path list. If route->path is same,
650 * replace from paths list.
652 for (ALL_LIST_ELEMENTS(route
->paths
, anode
, anext
,
654 if ((o_path
->origin
.type
!= lsa
->header
->type
)
655 || (o_path
->origin
.adv_router
656 != lsa
->header
->adv_router
)
657 || (o_path
->origin
.id
!= lsa
->header
->id
))
660 /* Compare LSA cost with current
664 && (o_path
->cost
!= route_to_del
->path
.cost
666 != route_to_del
->path
.u
668 if (IS_OSPF6_DEBUG_EXAMIN(
670 prefix2str(&prefix
, buf
,
673 "%s: route %s to delete is not same, cost %u del cost %u. skip",
675 buf
, route
->path
.cost
,
682 if (IS_OSPF6_DEBUG_EXAMIN(AS_EXTERNAL
)) {
683 prefix2str(&prefix
, buf
, sizeof(buf
));
685 "%s: route %s path found with cost %u nh %u to remove.",
686 __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 if (listcount(route
->paths
)) {
740 /* Update RIB/FIB with effective
743 if (ospf6
->route_table
->hook_add
)
744 (*ospf6
->route_table
->hook_add
)
747 /* route's primary path is similar
748 * to LSA, replace route's primary
749 * path with route's paths list head.
751 if ((route
->path
.origin
.id
==
753 (route
->path
.origin
.adv_router
754 == lsa
->header
->adv_router
)) {
755 struct ospf6_path
*h_path
;
757 h_path
= (struct ospf6_path
*)
759 listhead(route
->paths
));
760 route
->path
.origin
.type
=
762 route
->path
.origin
.id
=
764 route
->path
.origin
.adv_router
=
765 h_path
->origin
.adv_router
;
768 ospf6_route_remove(route
,
775 /* Compare LSA origin and cost with current route info.
776 * if any check fails skip del this route node.
779 && (!ospf6_route_is_same_origin(route
, route_to_del
)
780 || (route
->path
.type
!= route_to_del
->path
.type
)
781 || (route
->path
.cost
!= route_to_del
->path
.cost
)
782 || (route
->path
.u
.cost_e2
783 != route_to_del
->path
.u
.cost_e2
))) {
784 if (IS_OSPF6_DEBUG_EXAMIN(AS_EXTERNAL
)) {
785 prefix2str(&prefix
, buf
, sizeof(buf
));
787 "%s: route %s to delete is not same, cost %u del cost %u. skip",
788 __PRETTY_FUNCTION__
, buf
,
790 route_to_del
->path
.cost
);
795 if ((route
->path
.origin
.type
!= lsa
->header
->type
)
796 || (route
->path
.origin
.adv_router
797 != lsa
->header
->adv_router
)
798 || (route
->path
.origin
.id
!= lsa
->header
->id
))
801 if (IS_OSPF6_DEBUG_EXAMIN(AS_EXTERNAL
)) {
802 prefix2str(&route
->prefix
, buf
, sizeof(buf
));
804 "%s: AS-External %u route remove %s cost %u(%u) nh %u",
806 route
->path
.type
== OSPF6_PATH_TYPE_EXTERNAL1
809 buf
, route
->path
.cost
, route
->path
.u
.cost_e2
,
810 listcount(route
->nh_list
));
812 ospf6_route_remove(route
, ospf6
->route_table
);
815 ospf6_route_unlock(route
);
817 ospf6_route_delete(route_to_del
);
820 void ospf6_asbr_lsentry_add(struct ospf6_route
*asbr_entry
)
822 struct ospf6_lsa
*lsa
;
826 if (!CHECK_FLAG(asbr_entry
->flag
, OSPF6_ROUTE_BEST
)) {
828 inet_ntop(AF_INET
, &ADV_ROUTER_IN_PREFIX(&asbr_entry
->prefix
),
830 zlog_info("ignore non-best path: lsentry %s add", buf
);
834 type
= htons(OSPF6_LSTYPE_AS_EXTERNAL
);
835 router
= ospf6_linkstate_prefix_adv_router(&asbr_entry
->prefix
);
836 for (ALL_LSDB_TYPED_ADVRTR(ospf6
->lsdb
, type
, router
, lsa
)) {
837 if (!OSPF6_LSA_IS_MAXAGE(lsa
))
838 ospf6_asbr_lsa_add(lsa
);
842 void ospf6_asbr_lsentry_remove(struct ospf6_route
*asbr_entry
)
844 struct ospf6_lsa
*lsa
;
848 type
= htons(OSPF6_LSTYPE_AS_EXTERNAL
);
849 router
= ospf6_linkstate_prefix_adv_router(&asbr_entry
->prefix
);
850 for (ALL_LSDB_TYPED_ADVRTR(ospf6
->lsdb
, type
, router
, lsa
))
851 ospf6_asbr_lsa_remove(lsa
, asbr_entry
);
855 /* redistribute function */
857 static void ospf6_asbr_routemap_set(int type
, const char *mapname
)
859 if (ospf6
->rmap
[type
].name
)
860 free(ospf6
->rmap
[type
].name
);
861 ospf6
->rmap
[type
].name
= strdup(mapname
);
862 ospf6
->rmap
[type
].map
= route_map_lookup_by_name(mapname
);
865 static void ospf6_asbr_routemap_unset(int type
)
867 if (ospf6
->rmap
[type
].name
)
868 free(ospf6
->rmap
[type
].name
);
869 ospf6
->rmap
[type
].name
= NULL
;
870 ospf6
->rmap
[type
].map
= NULL
;
873 static int ospf6_asbr_routemap_update_timer(struct thread
*thread
)
878 arg
= THREAD_ARG(thread
);
879 arg_type
= (int)(intptr_t)arg
[1];
881 ospf6
->t_distribute_update
= NULL
;
883 if (ospf6
->rmap
[arg_type
].name
)
884 ospf6
->rmap
[arg_type
].map
=
885 route_map_lookup_by_name(ospf6
->rmap
[arg_type
].name
);
886 if (ospf6
->rmap
[arg_type
].map
) {
887 if (IS_OSPF6_DEBUG_ASBR
)
888 zlog_debug("%s: route-map %s update, reset redist %s",
890 ospf6
->rmap
[arg_type
].name
,
891 ZROUTE_NAME(arg_type
));
893 ospf6_zebra_no_redistribute(arg_type
);
894 ospf6_zebra_redistribute(arg_type
);
897 XFREE(MTYPE_OSPF6_DIST_ARGS
, arg
);
901 void ospf6_asbr_distribute_list_update(int type
)
905 if (ospf6
->t_distribute_update
)
908 args
= XCALLOC(MTYPE_OSPF6_DIST_ARGS
, sizeof(void *) * 2);
911 args
[1] = (void *)((ptrdiff_t)type
);
913 if (IS_OSPF6_DEBUG_ASBR
)
914 zlog_debug("%s: trigger redistribute %s reset thread",
915 __PRETTY_FUNCTION__
, ZROUTE_NAME(type
));
917 ospf6
->t_distribute_update
= NULL
;
918 thread_add_timer_msec(master
, ospf6_asbr_routemap_update_timer
,
919 (void **)args
, OSPF_MIN_LS_INTERVAL
,
920 &ospf6
->t_distribute_update
);
923 static void ospf6_asbr_routemap_update(const char *mapname
)
930 for (type
= 0; type
< ZEBRA_ROUTE_MAX
; type
++) {
931 if (ospf6
->rmap
[type
].name
) {
932 ospf6
->rmap
[type
].map
= route_map_lookup_by_name(
933 ospf6
->rmap
[type
].name
);
935 if (mapname
&& ospf6
->rmap
[type
].map
936 && (strcmp(ospf6
->rmap
[type
].name
, mapname
) == 0)) {
937 if (IS_OSPF6_DEBUG_ASBR
)
939 "%s: route-map %s update, reset redist %s",
940 __PRETTY_FUNCTION__
, mapname
,
942 ospf6_asbr_distribute_list_update(type
);
945 ospf6
->rmap
[type
].map
= NULL
;
949 static void ospf6_asbr_routemap_event(route_map_event_t event
, const char *name
)
955 for (type
= 0; type
< ZEBRA_ROUTE_MAX
; type
++) {
956 if ((ospf6
->rmap
[type
].name
)
957 && (strcmp(ospf6
->rmap
[type
].name
, name
) == 0)) {
958 ospf6_asbr_distribute_list_update(type
);
963 int ospf6_asbr_is_asbr(struct ospf6
*o
)
965 return o
->external_table
->count
;
968 static void ospf6_asbr_redistribute_set(int type
)
970 ospf6_zebra_redistribute(type
);
973 static void ospf6_asbr_redistribute_unset(int type
)
975 struct ospf6_route
*route
;
976 struct ospf6_external_info
*info
;
978 ospf6_zebra_no_redistribute(type
);
980 for (route
= ospf6_route_head(ospf6
->external_table
); route
;
981 route
= ospf6_route_next(route
)) {
982 info
= route
->route_option
;
983 if (info
->type
!= type
)
986 ospf6_asbr_redistribute_remove(info
->type
, 0, &route
->prefix
);
989 ospf6_asbr_routemap_unset(type
);
992 /* When an area is unstubified, flood all the external LSAs in the area */
993 void ospf6_asbr_send_externals_to_area(struct ospf6_area
*oa
)
995 struct ospf6_lsa
*lsa
;
997 for (ALL_LSDB(oa
->ospf6
->lsdb
, lsa
)) {
998 if (ntohs(lsa
->header
->type
) == OSPF6_LSTYPE_AS_EXTERNAL
) {
999 zlog_debug("%s: Flooding AS-External LSA %s\n",
1000 __func__
, lsa
->name
);
1001 ospf6_flood_area(NULL
, lsa
, oa
);
1006 void ospf6_asbr_redistribute_add(int type
, ifindex_t ifindex
,
1007 struct prefix
*prefix
,
1008 unsigned int nexthop_num
,
1009 struct in6_addr
*nexthop
, route_tag_t tag
)
1012 struct ospf6_route troute
;
1013 struct ospf6_external_info tinfo
;
1014 struct ospf6_route
*route
, *match
;
1015 struct ospf6_external_info
*info
;
1016 struct prefix prefix_id
;
1017 struct route_node
*node
;
1018 char pbuf
[PREFIX2STR_BUFFER
], ibuf
[16];
1019 struct listnode
*lnode
, *lnnode
;
1020 struct ospf6_area
*oa
;
1022 if (!ospf6_zebra_is_redistribute(type
))
1025 memset(&troute
, 0, sizeof(troute
));
1026 memset(&tinfo
, 0, sizeof(tinfo
));
1028 if (IS_OSPF6_DEBUG_ASBR
) {
1029 prefix2str(prefix
, pbuf
, sizeof(pbuf
));
1030 zlog_debug("Redistribute %s (%s)", pbuf
, ZROUTE_NAME(type
));
1033 /* if route-map was specified but not found, do not advertise */
1034 if (ospf6
->rmap
[type
].name
) {
1035 if (ospf6
->rmap
[type
].map
== NULL
)
1036 ospf6_asbr_routemap_update(NULL
);
1037 if (ospf6
->rmap
[type
].map
== NULL
) {
1039 "route-map \"%s\" not found, suppress redistributing",
1040 ospf6
->rmap
[type
].name
);
1045 /* apply route-map */
1046 if (ospf6
->rmap
[type
].map
) {
1047 troute
.route_option
= &tinfo
;
1048 tinfo
.ifindex
= ifindex
;
1051 ret
= route_map_apply(ospf6
->rmap
[type
].map
, prefix
, RMAP_OSPF6
,
1053 if (ret
== RMAP_DENYMATCH
) {
1054 if (IS_OSPF6_DEBUG_ASBR
)
1055 zlog_debug("Denied by route-map \"%s\"",
1056 ospf6
->rmap
[type
].name
);
1061 match
= ospf6_route_lookup(prefix
, ospf6
->external_table
);
1063 info
= match
->route_option
;
1064 /* copy result of route-map */
1065 if (ospf6
->rmap
[type
].map
) {
1066 if (troute
.path
.metric_type
)
1067 match
->path
.metric_type
=
1068 troute
.path
.metric_type
;
1069 if (troute
.path
.cost
)
1070 match
->path
.cost
= troute
.path
.cost
;
1071 if (!IN6_IS_ADDR_UNSPECIFIED(&tinfo
.forwarding
))
1072 memcpy(&info
->forwarding
, &tinfo
.forwarding
,
1073 sizeof(struct in6_addr
));
1074 info
->tag
= tinfo
.tag
;
1076 /* If there is no route-map, simply update the tag */
1082 if (nexthop_num
&& nexthop
)
1083 ospf6_route_add_nexthop(match
, ifindex
, nexthop
);
1085 ospf6_route_add_nexthop(match
, ifindex
, NULL
);
1087 /* create/update binding in external_id_table */
1088 prefix_id
.family
= AF_INET
;
1089 prefix_id
.prefixlen
= 32;
1090 prefix_id
.u
.prefix4
.s_addr
= htonl(info
->id
);
1091 node
= route_node_get(ospf6
->external_id_table
, &prefix_id
);
1094 if (IS_OSPF6_DEBUG_ASBR
) {
1095 inet_ntop(AF_INET
, &prefix_id
.u
.prefix4
, ibuf
,
1097 prefix2str(prefix
, pbuf
, sizeof(pbuf
));
1099 "Advertise as AS-External Id:%s prefix %s metric %u",
1100 ibuf
, pbuf
, match
->path
.metric_type
);
1103 match
->path
.origin
.id
= htonl(info
->id
);
1104 ospf6_as_external_lsa_originate(match
);
1108 /* create new entry */
1109 route
= ospf6_route_create();
1110 route
->type
= OSPF6_DEST_TYPE_NETWORK
;
1111 memcpy(&route
->prefix
, prefix
, sizeof(struct prefix
));
1113 info
= (struct ospf6_external_info
*)XCALLOC(
1114 MTYPE_OSPF6_EXTERNAL_INFO
, sizeof(struct ospf6_external_info
));
1115 route
->route_option
= info
;
1116 info
->id
= ospf6
->external_id
++;
1118 /* copy result of route-map */
1119 if (ospf6
->rmap
[type
].map
) {
1120 if (troute
.path
.metric_type
)
1121 route
->path
.metric_type
= troute
.path
.metric_type
;
1122 if (troute
.path
.cost
)
1123 route
->path
.cost
= troute
.path
.cost
;
1124 if (!IN6_IS_ADDR_UNSPECIFIED(&tinfo
.forwarding
))
1125 memcpy(&info
->forwarding
, &tinfo
.forwarding
,
1126 sizeof(struct in6_addr
));
1127 info
->tag
= tinfo
.tag
;
1129 /* If there is no route-map, simply set the tag */
1134 if (nexthop_num
&& nexthop
)
1135 ospf6_route_add_nexthop(route
, ifindex
, nexthop
);
1137 ospf6_route_add_nexthop(route
, ifindex
, NULL
);
1139 /* create/update binding in external_id_table */
1140 prefix_id
.family
= AF_INET
;
1141 prefix_id
.prefixlen
= 32;
1142 prefix_id
.u
.prefix4
.s_addr
= htonl(info
->id
);
1143 node
= route_node_get(ospf6
->external_id_table
, &prefix_id
);
1146 route
= ospf6_route_add(route
, ospf6
->external_table
);
1147 route
->route_option
= info
;
1149 if (IS_OSPF6_DEBUG_ASBR
) {
1150 inet_ntop(AF_INET
, &prefix_id
.u
.prefix4
, ibuf
, sizeof(ibuf
));
1151 prefix2str(prefix
, pbuf
, sizeof(pbuf
));
1152 zlog_debug("Advertise as AS-External Id:%s prefix %s metric %u",
1153 ibuf
, pbuf
, route
->path
.metric_type
);
1156 route
->path
.origin
.id
= htonl(info
->id
);
1157 ospf6_as_external_lsa_originate(route
);
1159 /* Router-Bit (ASBR Flag) may have to be updated */
1160 for (ALL_LIST_ELEMENTS(ospf6
->area_list
, lnode
, lnnode
, oa
))
1161 OSPF6_ROUTER_LSA_SCHEDULE(oa
);
1164 void ospf6_asbr_redistribute_remove(int type
, ifindex_t ifindex
,
1165 struct prefix
*prefix
)
1167 struct ospf6_route
*match
;
1168 struct ospf6_external_info
*info
= NULL
;
1169 struct route_node
*node
;
1170 struct ospf6_lsa
*lsa
;
1171 struct prefix prefix_id
;
1172 char pbuf
[PREFIX2STR_BUFFER
], ibuf
[16];
1173 struct listnode
*lnode
, *lnnode
;
1174 struct ospf6_area
*oa
;
1176 match
= ospf6_route_lookup(prefix
, ospf6
->external_table
);
1177 if (match
== NULL
) {
1178 if (IS_OSPF6_DEBUG_ASBR
) {
1179 prefix2str(prefix
, pbuf
, sizeof(pbuf
));
1180 zlog_debug("No such route %s to withdraw", pbuf
);
1185 info
= match
->route_option
;
1188 if (info
->type
!= type
) {
1189 if (IS_OSPF6_DEBUG_ASBR
) {
1190 prefix2str(prefix
, pbuf
, sizeof(pbuf
));
1191 zlog_debug("Original protocol mismatch: %s", pbuf
);
1196 if (IS_OSPF6_DEBUG_ASBR
) {
1197 prefix2str(prefix
, pbuf
, sizeof(pbuf
));
1198 inet_ntop(AF_INET
, &prefix_id
.u
.prefix4
, ibuf
, sizeof(ibuf
));
1199 zlog_debug("Withdraw %s (AS-External Id:%s)", pbuf
, ibuf
);
1202 lsa
= ospf6_lsdb_lookup(htons(OSPF6_LSTYPE_AS_EXTERNAL
),
1203 htonl(info
->id
), ospf6
->router_id
, ospf6
->lsdb
);
1205 ospf6_lsa_purge(lsa
);
1207 /* remove binding in external_id_table */
1208 prefix_id
.family
= AF_INET
;
1209 prefix_id
.prefixlen
= 32;
1210 prefix_id
.u
.prefix4
.s_addr
= htonl(info
->id
);
1211 node
= route_node_lookup(ospf6
->external_id_table
, &prefix_id
);
1214 route_unlock_node(node
); /* to free the lookup lock */
1215 route_unlock_node(node
); /* to free the original lock */
1217 ospf6_route_remove(match
, ospf6
->external_table
);
1218 XFREE(MTYPE_OSPF6_EXTERNAL_INFO
, info
);
1220 /* Router-Bit (ASBR Flag) may have to be updated */
1221 for (ALL_LIST_ELEMENTS(ospf6
->area_list
, lnode
, lnnode
, oa
))
1222 OSPF6_ROUTER_LSA_SCHEDULE(oa
);
1225 DEFUN (ospf6_redistribute
,
1226 ospf6_redistribute_cmd
,
1227 "redistribute " FRR_REDIST_STR_OSPF6D
,
1229 FRR_REDIST_HELP_STR_OSPF6D
)
1233 char *proto
= argv
[argc
- 1]->text
;
1234 type
= proto_redistnum(AFI_IP6
, proto
);
1236 return CMD_WARNING_CONFIG_FAILED
;
1238 ospf6_asbr_redistribute_unset(type
);
1239 ospf6_asbr_redistribute_set(type
);
1243 DEFUN (ospf6_redistribute_routemap
,
1244 ospf6_redistribute_routemap_cmd
,
1245 "redistribute " FRR_REDIST_STR_OSPF6D
" route-map WORD",
1247 FRR_REDIST_HELP_STR_OSPF6D
1248 "Route map reference\n"
1251 int idx_protocol
= 1;
1255 char *proto
= argv
[idx_protocol
]->text
;
1256 type
= proto_redistnum(AFI_IP6
, proto
);
1258 return CMD_WARNING_CONFIG_FAILED
;
1260 ospf6_asbr_redistribute_unset(type
);
1261 ospf6_asbr_routemap_set(type
, argv
[idx_word
]->arg
);
1262 ospf6_asbr_redistribute_set(type
);
1266 DEFUN (no_ospf6_redistribute
,
1267 no_ospf6_redistribute_cmd
,
1268 "no redistribute " FRR_REDIST_STR_OSPF6D
" [route-map WORD]",
1271 FRR_REDIST_HELP_STR_OSPF6D
1272 "Route map reference\n"
1275 int idx_protocol
= 2;
1278 char *proto
= argv
[idx_protocol
]->text
;
1279 type
= proto_redistnum(AFI_IP6
, proto
);
1281 return CMD_WARNING_CONFIG_FAILED
;
1283 ospf6_asbr_redistribute_unset(type
);
1288 int ospf6_redistribute_config_write(struct vty
*vty
)
1292 for (type
= 0; type
< ZEBRA_ROUTE_MAX
; type
++) {
1293 if (type
== ZEBRA_ROUTE_OSPF6
)
1295 if (!ospf6_zebra_is_redistribute(type
))
1298 if (ospf6
->rmap
[type
].name
)
1299 vty_out(vty
, " redistribute %s route-map %s\n",
1300 ZROUTE_NAME(type
), ospf6
->rmap
[type
].name
);
1302 vty_out(vty
, " redistribute %s\n", ZROUTE_NAME(type
));
1308 static void ospf6_redistribute_show_config(struct vty
*vty
)
1311 int nroute
[ZEBRA_ROUTE_MAX
];
1313 struct ospf6_route
*route
;
1314 struct ospf6_external_info
*info
;
1317 for (type
= 0; type
< ZEBRA_ROUTE_MAX
; type
++)
1319 for (route
= ospf6_route_head(ospf6
->external_table
); route
;
1320 route
= ospf6_route_next(route
)) {
1321 info
= route
->route_option
;
1322 nroute
[info
->type
]++;
1326 vty_out(vty
, "Redistributing External Routes from:\n");
1327 for (type
= 0; type
< ZEBRA_ROUTE_MAX
; type
++) {
1328 if (type
== ZEBRA_ROUTE_OSPF6
)
1330 if (!ospf6_zebra_is_redistribute(type
))
1333 if (ospf6
->rmap
[type
].name
)
1334 vty_out(vty
, " %d: %s with route-map \"%s\"%s\n",
1335 nroute
[type
], ZROUTE_NAME(type
),
1336 ospf6
->rmap
[type
].name
,
1337 (ospf6
->rmap
[type
].map
? ""
1338 : " (not found !)"));
1340 vty_out(vty
, " %d: %s\n", nroute
[type
],
1343 vty_out(vty
, "Total %d routes\n", total
);
1347 /* Routemap Functions */
1348 static route_map_result_t
1349 ospf6_routemap_rule_match_address_prefixlist(void *rule
, struct prefix
*prefix
,
1350 route_map_object_t type
,
1353 struct prefix_list
*plist
;
1355 if (type
!= RMAP_OSPF6
)
1356 return RMAP_NOMATCH
;
1358 plist
= prefix_list_lookup(AFI_IP6
, (char *)rule
);
1360 return RMAP_NOMATCH
;
1362 return (prefix_list_apply(plist
, prefix
) == PREFIX_DENY
? RMAP_NOMATCH
1367 ospf6_routemap_rule_match_address_prefixlist_compile(const char *arg
)
1369 return XSTRDUP(MTYPE_ROUTE_MAP_COMPILED
, arg
);
1372 static void ospf6_routemap_rule_match_address_prefixlist_free(void *rule
)
1374 XFREE(MTYPE_ROUTE_MAP_COMPILED
, rule
);
1377 struct route_map_rule_cmd ospf6_routemap_rule_match_address_prefixlist_cmd
= {
1378 "ipv6 address prefix-list",
1379 ospf6_routemap_rule_match_address_prefixlist
,
1380 ospf6_routemap_rule_match_address_prefixlist_compile
,
1381 ospf6_routemap_rule_match_address_prefixlist_free
,
1384 /* `match interface IFNAME' */
1385 /* Match function should return 1 if match is success else return
1387 static route_map_result_t
1388 ospf6_routemap_rule_match_interface(void *rule
, struct prefix
*prefix
,
1389 route_map_object_t type
, void *object
)
1391 struct interface
*ifp
;
1392 struct ospf6_external_info
*ei
;
1394 if (type
== RMAP_OSPF6
) {
1395 ei
= ((struct ospf6_route
*)object
)->route_option
;
1396 ifp
= if_lookup_by_name((char *)rule
, VRF_DEFAULT
);
1398 if (ifp
!= NULL
&& ei
->ifindex
== ifp
->ifindex
)
1402 return RMAP_NOMATCH
;
1405 /* Route map `interface' match statement. `arg' should be
1407 static void *ospf6_routemap_rule_match_interface_compile(const char *arg
)
1409 return XSTRDUP(MTYPE_ROUTE_MAP_COMPILED
, arg
);
1412 /* Free route map's compiled `interface' value. */
1413 static void ospf6_routemap_rule_match_interface_free(void *rule
)
1415 XFREE(MTYPE_ROUTE_MAP_COMPILED
, rule
);
1418 /* Route map commands for interface matching. */
1419 struct route_map_rule_cmd ospf6_routemap_rule_match_interface_cmd
= {
1420 "interface", ospf6_routemap_rule_match_interface
,
1421 ospf6_routemap_rule_match_interface_compile
,
1422 ospf6_routemap_rule_match_interface_free
};
1424 /* Match function for matching route tags */
1425 static route_map_result_t
ospf6_routemap_rule_match_tag(void *rule
,
1426 struct prefix
*prefix
,
1427 route_map_object_t type
,
1430 route_tag_t
*tag
= rule
;
1431 struct ospf6_route
*route
= object
;
1432 struct ospf6_external_info
*info
= route
->route_option
;
1434 if (type
== RMAP_OSPF6
&& info
->tag
== *tag
)
1437 return RMAP_NOMATCH
;
1440 static struct route_map_rule_cmd ospf6_routemap_rule_match_tag_cmd
= {
1441 "tag", ospf6_routemap_rule_match_tag
, route_map_rule_tag_compile
,
1442 route_map_rule_tag_free
,
1445 static route_map_result_t
1446 ospf6_routemap_rule_set_metric_type(void *rule
, struct prefix
*prefix
,
1447 route_map_object_t type
, void *object
)
1449 char *metric_type
= rule
;
1450 struct ospf6_route
*route
= object
;
1452 if (type
!= RMAP_OSPF6
)
1455 if (strcmp(metric_type
, "type-2") == 0)
1456 route
->path
.metric_type
= 2;
1458 route
->path
.metric_type
= 1;
1463 static void *ospf6_routemap_rule_set_metric_type_compile(const char *arg
)
1465 if (strcmp(arg
, "type-2") && strcmp(arg
, "type-1"))
1467 return XSTRDUP(MTYPE_ROUTE_MAP_COMPILED
, arg
);
1470 static void ospf6_routemap_rule_set_metric_type_free(void *rule
)
1472 XFREE(MTYPE_ROUTE_MAP_COMPILED
, rule
);
1475 struct route_map_rule_cmd ospf6_routemap_rule_set_metric_type_cmd
= {
1476 "metric-type", ospf6_routemap_rule_set_metric_type
,
1477 ospf6_routemap_rule_set_metric_type_compile
,
1478 ospf6_routemap_rule_set_metric_type_free
,
1481 static route_map_result_t
1482 ospf6_routemap_rule_set_metric(void *rule
, struct prefix
*prefix
,
1483 route_map_object_t type
, void *object
)
1485 char *metric
= rule
;
1486 struct ospf6_route
*route
= object
;
1488 if (type
!= RMAP_OSPF6
)
1491 route
->path
.cost
= atoi(metric
);
1495 static void *ospf6_routemap_rule_set_metric_compile(const char *arg
)
1499 metric
= strtoul(arg
, &endp
, 0);
1500 if (metric
> OSPF_LS_INFINITY
|| *endp
!= '\0')
1502 return XSTRDUP(MTYPE_ROUTE_MAP_COMPILED
, arg
);
1505 static void ospf6_routemap_rule_set_metric_free(void *rule
)
1507 XFREE(MTYPE_ROUTE_MAP_COMPILED
, rule
);
1510 struct route_map_rule_cmd ospf6_routemap_rule_set_metric_cmd
= {
1511 "metric", ospf6_routemap_rule_set_metric
,
1512 ospf6_routemap_rule_set_metric_compile
,
1513 ospf6_routemap_rule_set_metric_free
,
1516 static route_map_result_t
1517 ospf6_routemap_rule_set_forwarding(void *rule
, struct prefix
*prefix
,
1518 route_map_object_t type
, void *object
)
1520 char *forwarding
= rule
;
1521 struct ospf6_route
*route
= object
;
1522 struct ospf6_external_info
*info
= route
->route_option
;
1524 if (type
!= RMAP_OSPF6
)
1527 if (inet_pton(AF_INET6
, forwarding
, &info
->forwarding
) != 1) {
1528 memset(&info
->forwarding
, 0, sizeof(struct in6_addr
));
1535 static void *ospf6_routemap_rule_set_forwarding_compile(const char *arg
)
1538 if (inet_pton(AF_INET6
, arg
, &a
) != 1)
1540 return XSTRDUP(MTYPE_ROUTE_MAP_COMPILED
, arg
);
1543 static void ospf6_routemap_rule_set_forwarding_free(void *rule
)
1545 XFREE(MTYPE_ROUTE_MAP_COMPILED
, rule
);
1548 struct route_map_rule_cmd ospf6_routemap_rule_set_forwarding_cmd
= {
1549 "forwarding-address", ospf6_routemap_rule_set_forwarding
,
1550 ospf6_routemap_rule_set_forwarding_compile
,
1551 ospf6_routemap_rule_set_forwarding_free
,
1554 static route_map_result_t
ospf6_routemap_rule_set_tag(void *rule
,
1555 struct prefix
*prefix
,
1556 route_map_object_t type
,
1559 route_tag_t
*tag
= rule
;
1560 struct ospf6_route
*route
= object
;
1561 struct ospf6_external_info
*info
= route
->route_option
;
1563 if (type
!= RMAP_OSPF6
)
1570 static struct route_map_rule_cmd ospf6_routemap_rule_set_tag_cmd
= {
1571 "tag", ospf6_routemap_rule_set_tag
, route_map_rule_tag_compile
,
1572 route_map_rule_tag_free
,
1575 static int route_map_command_status(struct vty
*vty
, int ret
)
1578 case RMAP_RULE_MISSING
:
1579 vty_out(vty
, "OSPF6 Can't find rule.\n");
1580 return CMD_WARNING_CONFIG_FAILED
;
1582 case RMAP_COMPILE_ERROR
:
1583 vty_out(vty
, "OSPF6 Argument is malformed.\n");
1584 return CMD_WARNING_CONFIG_FAILED
;
1586 case RMAP_COMPILE_SUCCESS
:
1593 /* add "set metric-type" */
1594 DEFUN (ospf6_routemap_set_metric_type
,
1595 ospf6_routemap_set_metric_type_cmd
,
1596 "set metric-type <type-1|type-2>",
1599 "OSPF6 external type 1 metric\n"
1600 "OSPF6 external type 2 metric\n")
1602 VTY_DECLVAR_CONTEXT(route_map_index
, route_map_index
);
1603 int idx_external
= 2;
1604 int ret
= route_map_add_set(route_map_index
, "metric-type",
1605 argv
[idx_external
]->arg
);
1606 return route_map_command_status(vty
, ret
);
1609 /* delete "set metric-type" */
1610 DEFUN (ospf6_routemap_no_set_metric_type
,
1611 ospf6_routemap_no_set_metric_type_cmd
,
1612 "no set metric-type [<type-1|type-2>]",
1616 "OSPF6 external type 1 metric\n"
1617 "OSPF6 external type 2 metric\n")
1619 VTY_DECLVAR_CONTEXT(route_map_index
, route_map_index
);
1620 char *ext
= (argc
== 4) ? argv
[3]->text
: NULL
;
1621 int ret
= route_map_delete_set(route_map_index
, "metric-type", ext
);
1622 return route_map_command_status(vty
, ret
);
1625 /* add "set forwarding-address" */
1626 DEFUN (ospf6_routemap_set_forwarding
,
1627 ospf6_routemap_set_forwarding_cmd
,
1628 "set forwarding-address X:X::X:X",
1630 "Forwarding Address\n"
1633 VTY_DECLVAR_CONTEXT(route_map_index
, route_map_index
);
1635 int ret
= route_map_add_set(route_map_index
, "forwarding-address",
1636 argv
[idx_ipv6
]->arg
);
1637 return route_map_command_status(vty
, ret
);
1640 /* delete "set forwarding-address" */
1641 DEFUN (ospf6_routemap_no_set_forwarding
,
1642 ospf6_routemap_no_set_forwarding_cmd
,
1643 "no set forwarding-address X:X::X:X",
1646 "Forwarding Address\n"
1649 VTY_DECLVAR_CONTEXT(route_map_index
, route_map_index
);
1651 int ret
= route_map_delete_set(route_map_index
, "forwarding-address",
1652 argv
[idx_ipv6
]->arg
);
1653 return route_map_command_status(vty
, ret
);
1656 static void ospf6_routemap_init(void)
1660 route_map_add_hook(ospf6_asbr_routemap_update
);
1661 route_map_delete_hook(ospf6_asbr_routemap_update
);
1662 route_map_event_hook(ospf6_asbr_routemap_event
);
1664 route_map_set_metric_hook(generic_set_add
);
1665 route_map_no_set_metric_hook(generic_set_delete
);
1667 route_map_match_tag_hook(generic_match_add
);
1668 route_map_no_match_tag_hook(generic_match_delete
);
1670 route_map_match_ipv6_address_prefix_list_hook(generic_match_add
);
1671 route_map_no_match_ipv6_address_prefix_list_hook(generic_match_delete
);
1673 route_map_match_interface_hook(generic_match_add
);
1674 route_map_no_match_interface_hook(generic_match_delete
);
1676 route_map_install_match(
1677 &ospf6_routemap_rule_match_address_prefixlist_cmd
);
1678 route_map_install_match(&ospf6_routemap_rule_match_interface_cmd
);
1679 route_map_install_match(&ospf6_routemap_rule_match_tag_cmd
);
1681 route_map_install_set(&ospf6_routemap_rule_set_metric_type_cmd
);
1682 route_map_install_set(&ospf6_routemap_rule_set_metric_cmd
);
1683 route_map_install_set(&ospf6_routemap_rule_set_forwarding_cmd
);
1684 route_map_install_set(&ospf6_routemap_rule_set_tag_cmd
);
1686 /* ASE Metric Type (e.g. Type-1/Type-2) */
1687 install_element(RMAP_NODE
, &ospf6_routemap_set_metric_type_cmd
);
1688 install_element(RMAP_NODE
, &ospf6_routemap_no_set_metric_type_cmd
);
1691 install_element(RMAP_NODE
, &ospf6_routemap_set_forwarding_cmd
);
1692 install_element(RMAP_NODE
, &ospf6_routemap_no_set_forwarding_cmd
);
1696 /* Display functions */
1697 static char *ospf6_as_external_lsa_get_prefix_str(struct ospf6_lsa
*lsa
,
1698 char *buf
, int buflen
,
1701 struct ospf6_as_external_lsa
*external
;
1702 struct in6_addr in6
;
1703 int prefix_length
= 0;
1706 external
= (struct ospf6_as_external_lsa
*)OSPF6_LSA_HEADER_END(
1710 ospf6_prefix_in6_addr(&in6
, &external
->prefix
);
1711 prefix_length
= external
->prefix
.prefix_length
;
1713 in6
= *((struct in6_addr
1714 *)((caddr_t
)external
1716 ospf6_as_external_lsa
)
1717 + OSPF6_PREFIX_SPACE(
1722 inet_ntop(AF_INET6
, &in6
, buf
, buflen
);
1724 sprintf(&buf
[strlen(buf
)], "/%d",
1731 static int ospf6_as_external_lsa_show(struct vty
*vty
, struct ospf6_lsa
*lsa
)
1733 struct ospf6_as_external_lsa
*external
;
1736 assert(lsa
->header
);
1737 external
= (struct ospf6_as_external_lsa
*)OSPF6_LSA_HEADER_END(
1741 snprintf(buf
, sizeof(buf
), "%c%c%c",
1742 (CHECK_FLAG(external
->bits_metric
, OSPF6_ASBR_BIT_E
) ? 'E'
1744 (CHECK_FLAG(external
->bits_metric
, OSPF6_ASBR_BIT_F
) ? 'F'
1746 (CHECK_FLAG(external
->bits_metric
, OSPF6_ASBR_BIT_T
) ? 'T'
1749 vty_out(vty
, " Bits: %s\n", buf
);
1750 vty_out(vty
, " Metric: %5lu\n",
1751 (unsigned long)OSPF6_ASBR_METRIC(external
));
1753 ospf6_prefix_options_printbuf(external
->prefix
.prefix_options
, buf
,
1755 vty_out(vty
, " Prefix Options: %s\n", buf
);
1757 vty_out(vty
, " Referenced LSType: %d\n",
1758 ntohs(external
->prefix
.prefix_refer_lstype
));
1760 vty_out(vty
, " Prefix: %s\n",
1761 ospf6_as_external_lsa_get_prefix_str(lsa
, buf
, sizeof(buf
), 0));
1763 /* Forwarding-Address */
1764 if (CHECK_FLAG(external
->bits_metric
, OSPF6_ASBR_BIT_F
)) {
1765 vty_out(vty
, " Forwarding-Address: %s\n",
1766 ospf6_as_external_lsa_get_prefix_str(lsa
, buf
,
1771 if (CHECK_FLAG(external
->bits_metric
, OSPF6_ASBR_BIT_T
)) {
1772 vty_out(vty
, " Tag: %" ROUTE_TAG_PRI
"\n",
1773 ospf6_as_external_lsa_get_tag(lsa
));
1779 static void ospf6_asbr_external_route_show(struct vty
*vty
,
1780 struct ospf6_route
*route
)
1782 struct ospf6_external_info
*info
= route
->route_option
;
1783 char prefix
[PREFIX2STR_BUFFER
], id
[16], forwarding
[64];
1786 prefix2str(&route
->prefix
, prefix
, sizeof(prefix
));
1787 tmp_id
= ntohl(info
->id
);
1788 inet_ntop(AF_INET
, &tmp_id
, id
, sizeof(id
));
1789 if (!IN6_IS_ADDR_UNSPECIFIED(&info
->forwarding
))
1790 inet_ntop(AF_INET6
, &info
->forwarding
, forwarding
,
1791 sizeof(forwarding
));
1793 snprintf(forwarding
, sizeof(forwarding
), ":: (ifindex %d)",
1794 ospf6_route_get_first_nh_index(route
));
1796 vty_out(vty
, "%c %-32s %-15s type-%d %5lu %s\n",
1797 zebra_route_char(info
->type
), prefix
, id
,
1798 route
->path
.metric_type
,
1799 (unsigned long)(route
->path
.metric_type
== 2
1800 ? route
->path
.u
.cost_e2
1801 : route
->path
.cost
),
1805 DEFUN (show_ipv6_ospf6_redistribute
,
1806 show_ipv6_ospf6_redistribute_cmd
,
1807 "show ipv6 ospf6 redistribute",
1811 "redistributing External information\n"
1814 struct ospf6_route
*route
;
1816 OSPF6_CMD_CHECK_RUNNING();
1818 ospf6_redistribute_show_config(vty
);
1820 for (route
= ospf6_route_head(ospf6
->external_table
); route
;
1821 route
= ospf6_route_next(route
))
1822 ospf6_asbr_external_route_show(vty
, route
);
1827 struct ospf6_lsa_handler as_external_handler
= {
1828 .lh_type
= OSPF6_LSTYPE_AS_EXTERNAL
,
1829 .lh_name
= "AS-External",
1830 .lh_short_name
= "ASE",
1831 .lh_show
= ospf6_as_external_lsa_show
,
1832 .lh_get_prefix_str
= ospf6_as_external_lsa_get_prefix_str
,
1835 void ospf6_asbr_init(void)
1837 ospf6_routemap_init();
1839 ospf6_install_lsa_handler(&as_external_handler
);
1841 install_element(VIEW_NODE
, &show_ipv6_ospf6_redistribute_cmd
);
1843 install_element(OSPF6_NODE
, &ospf6_redistribute_cmd
);
1844 install_element(OSPF6_NODE
, &ospf6_redistribute_routemap_cmd
);
1845 install_element(OSPF6_NODE
, &no_ospf6_redistribute_cmd
);
1848 void ospf6_asbr_redistribute_reset(void)
1852 for (type
= 0; type
< ZEBRA_ROUTE_MAX
; type
++) {
1853 if (type
== ZEBRA_ROUTE_OSPF6
)
1855 if (ospf6_zebra_is_redistribute(type
))
1856 ospf6_asbr_redistribute_unset(type
);
1860 void ospf6_asbr_terminate(void)
1862 /* Cleanup route maps */
1863 route_map_add_hook(NULL
);
1864 route_map_delete_hook(NULL
);
1865 route_map_event_hook(NULL
);
1869 DEFUN (debug_ospf6_asbr
,
1870 debug_ospf6_asbr_cmd
,
1874 "Debug OSPFv3 ASBR function\n"
1877 OSPF6_DEBUG_ASBR_ON();
1881 DEFUN (no_debug_ospf6_asbr
,
1882 no_debug_ospf6_asbr_cmd
,
1883 "no debug ospf6 asbr",
1887 "Debug OSPFv3 ASBR function\n"
1890 OSPF6_DEBUG_ASBR_OFF();
1894 int config_write_ospf6_debug_asbr(struct vty
*vty
)
1896 if (IS_OSPF6_DEBUG_ASBR
)
1897 vty_out(vty
, "debug ospf6 asbr\n");
1901 void install_element_ospf6_debug_asbr()
1903 install_element(ENABLE_NODE
, &debug_ospf6_asbr_cmd
);
1904 install_element(ENABLE_NODE
, &no_debug_ospf6_asbr_cmd
);
1905 install_element(CONFIG_NODE
, &debug_ospf6_asbr_cmd
);
1906 install_element(CONFIG_NODE
, &no_debug_ospf6_asbr_cmd
);