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[mirror_frr.git] / ospf6d / ospf6_interface.c
1 /*
2 * Copyright (C) 2003 Yasuhiro Ohara
3 *
4 * This file is part of GNU Zebra.
5 *
6 * GNU Zebra is free software; you can redistribute it and/or modify it
7 * under the terms of the GNU General Public License as published by the
8 * Free Software Foundation; either version 2, or (at your option) any
9 * later version.
10 *
11 * GNU Zebra is distributed in the hope that it will be useful, but
12 * WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License 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
19 */
20
21 #include <zebra.h>
22
23 #include "memory.h"
24 #include "if.h"
25 #include "log.h"
26 #include "command.h"
27 #include "thread.h"
28 #include "prefix.h"
29 #include "plist.h"
30 #include "zclient.h"
31
32 #include "ospf6_lsa.h"
33 #include "ospf6_lsdb.h"
34 #include "ospf6_network.h"
35 #include "ospf6_message.h"
36 #include "ospf6_route.h"
37 #include "ospf6_top.h"
38 #include "ospf6_area.h"
39 #include "ospf6_interface.h"
40 #include "ospf6_neighbor.h"
41 #include "ospf6_intra.h"
42 #include "ospf6_spf.h"
43 #include "ospf6d.h"
44 #include "ospf6_bfd.h"
45
46 DEFINE_MTYPE_STATIC(OSPF6D, CFG_PLIST_NAME, "configured prefix list names")
47 DEFINE_QOBJ_TYPE(ospf6_interface)
48 DEFINE_HOOK(ospf6_interface_change,
49 (struct ospf6_interface * oi, int state, int old_state),
50 (oi, state, old_state))
51
52 unsigned char conf_debug_ospf6_interface = 0;
53
54 const char *ospf6_interface_state_str[] = {
55 "None", "Down", "Loopback", "Waiting", "PointToPoint",
56 "DROther", "BDR", "DR", NULL};
57
58 struct ospf6_interface *ospf6_interface_lookup_by_ifindex(ifindex_t ifindex)
59 {
60 struct ospf6_interface *oi;
61 struct interface *ifp;
62
63 ifp = if_lookup_by_index(ifindex, VRF_DEFAULT);
64 if (ifp == NULL)
65 return (struct ospf6_interface *)NULL;
66
67 oi = (struct ospf6_interface *)ifp->info;
68 return oi;
69 }
70
71 /* schedule routing table recalculation */
72 static void ospf6_interface_lsdb_hook(struct ospf6_lsa *lsa,
73 unsigned int reason)
74 {
75 struct ospf6_interface *oi;
76
77 if (lsa == NULL)
78 return;
79
80 oi = lsa->lsdb->data;
81 switch (ntohs(lsa->header->type)) {
82 case OSPF6_LSTYPE_LINK:
83 if (oi->state == OSPF6_INTERFACE_DR)
84 OSPF6_INTRA_PREFIX_LSA_SCHEDULE_TRANSIT(oi);
85 if (oi->area)
86 ospf6_spf_schedule(oi->area->ospf6, reason);
87 break;
88
89 default:
90 break;
91 }
92 }
93
94 static void ospf6_interface_lsdb_hook_add(struct ospf6_lsa *lsa)
95 {
96 ospf6_interface_lsdb_hook(lsa, ospf6_lsadd_to_spf_reason(lsa));
97 }
98
99 static void ospf6_interface_lsdb_hook_remove(struct ospf6_lsa *lsa)
100 {
101 ospf6_interface_lsdb_hook(lsa, ospf6_lsremove_to_spf_reason(lsa));
102 }
103
104 static u_char ospf6_default_iftype(struct interface *ifp)
105 {
106 if (if_is_pointopoint(ifp))
107 return OSPF_IFTYPE_POINTOPOINT;
108 else if (if_is_loopback(ifp))
109 return OSPF_IFTYPE_LOOPBACK;
110 else
111 return OSPF_IFTYPE_BROADCAST;
112 }
113
114 static u_int32_t ospf6_interface_get_cost(struct ospf6_interface *oi)
115 {
116 /* If all else fails, use default OSPF cost */
117 u_int32_t cost;
118 u_int32_t bw, refbw;
119
120 /* interface speed and bw can be 0 in some platforms,
121 * use ospf default bw. If bw is configured then it would
122 * be used.
123 */
124 if (!oi->interface->bandwidth && oi->interface->speed) {
125 bw = oi->interface->speed;
126 } else {
127 bw = oi->interface->bandwidth ? oi->interface->bandwidth
128 : OSPF6_INTERFACE_BANDWIDTH;
129 }
130
131 refbw = ospf6 ? ospf6->ref_bandwidth : OSPF6_REFERENCE_BANDWIDTH;
132
133 /* A specifed ip ospf cost overrides a calculated one. */
134 if (CHECK_FLAG(oi->flag, OSPF6_INTERFACE_NOAUTOCOST))
135 cost = oi->cost;
136 else {
137 cost = (u_int32_t)((double)refbw / (double)bw + (double)0.5);
138 if (cost < 1)
139 cost = 1;
140 else if (cost > UINT32_MAX)
141 cost = UINT32_MAX;
142 }
143
144 return cost;
145 }
146
147 static void ospf6_interface_recalculate_cost(struct ospf6_interface *oi)
148 {
149 u_int32_t newcost;
150
151 newcost = ospf6_interface_get_cost(oi);
152 if (newcost == oi->cost)
153 return;
154 oi->cost = newcost;
155
156 /* update cost held in route_connected list in ospf6_interface */
157 ospf6_interface_connected_route_update(oi->interface);
158
159 /* execute LSA hooks */
160 if (oi->area) {
161 OSPF6_LINK_LSA_SCHEDULE(oi);
162 OSPF6_ROUTER_LSA_SCHEDULE(oi->area);
163 OSPF6_NETWORK_LSA_SCHEDULE(oi);
164 OSPF6_INTRA_PREFIX_LSA_SCHEDULE_TRANSIT(oi);
165 OSPF6_INTRA_PREFIX_LSA_SCHEDULE_STUB(oi->area);
166 }
167 }
168
169 /* Create new ospf6 interface structure */
170 struct ospf6_interface *ospf6_interface_create(struct interface *ifp)
171 {
172 struct ospf6_interface *oi;
173 unsigned int iobuflen;
174
175 oi = (struct ospf6_interface *)XCALLOC(MTYPE_OSPF6_IF,
176 sizeof(struct ospf6_interface));
177
178 if (!oi) {
179 zlog_err("Can't malloc ospf6_interface for ifindex %d",
180 ifp->ifindex);
181 return (struct ospf6_interface *)NULL;
182 }
183
184 oi->area = (struct ospf6_area *)NULL;
185 oi->neighbor_list = list_new();
186 oi->neighbor_list->cmp = ospf6_neighbor_cmp;
187 oi->linklocal_addr = (struct in6_addr *)NULL;
188 oi->instance_id = OSPF6_INTERFACE_INSTANCE_ID;
189 oi->transdelay = OSPF6_INTERFACE_TRANSDELAY;
190 oi->priority = OSPF6_INTERFACE_PRIORITY;
191
192 oi->hello_interval = OSPF_HELLO_INTERVAL_DEFAULT;
193 oi->dead_interval = OSPF_ROUTER_DEAD_INTERVAL_DEFAULT;
194 oi->rxmt_interval = OSPF_RETRANSMIT_INTERVAL_DEFAULT;
195 oi->type = ospf6_default_iftype(ifp);
196 oi->state = OSPF6_INTERFACE_DOWN;
197 oi->flag = 0;
198 oi->mtu_ignore = 0;
199 oi->c_ifmtu = 0;
200
201 /* Try to adjust I/O buffer size with IfMtu */
202 oi->ifmtu = ifp->mtu6;
203 iobuflen = ospf6_iobuf_size(ifp->mtu6);
204 if (oi->ifmtu > iobuflen) {
205 if (IS_OSPF6_DEBUG_INTERFACE)
206 zlog_debug(
207 "Interface %s: IfMtu is adjusted to I/O buffer size: %d.",
208 ifp->name, iobuflen);
209 oi->ifmtu = iobuflen;
210 }
211
212 QOBJ_REG(oi, ospf6_interface);
213
214 oi->lsupdate_list = ospf6_lsdb_create(oi);
215 oi->lsack_list = ospf6_lsdb_create(oi);
216 oi->lsdb = ospf6_lsdb_create(oi);
217 oi->lsdb->hook_add = ospf6_interface_lsdb_hook_add;
218 oi->lsdb->hook_remove = ospf6_interface_lsdb_hook_remove;
219 oi->lsdb_self = ospf6_lsdb_create(oi);
220
221 oi->route_connected =
222 OSPF6_ROUTE_TABLE_CREATE(INTERFACE, CONNECTED_ROUTES);
223 oi->route_connected->scope = oi;
224
225 /* link both */
226 oi->interface = ifp;
227 ifp->info = oi;
228
229 /* Compute cost. */
230 oi->cost = ospf6_interface_get_cost(oi);
231
232 return oi;
233 }
234
235 void ospf6_interface_delete(struct ospf6_interface *oi)
236 {
237 struct listnode *node, *nnode;
238 struct ospf6_neighbor *on;
239
240 QOBJ_UNREG(oi);
241
242 for (ALL_LIST_ELEMENTS(oi->neighbor_list, node, nnode, on))
243 ospf6_neighbor_delete(on);
244
245 list_delete_and_null(&oi->neighbor_list);
246
247 THREAD_OFF(oi->thread_send_hello);
248 THREAD_OFF(oi->thread_send_lsupdate);
249 THREAD_OFF(oi->thread_send_lsack);
250
251 ospf6_lsdb_remove_all(oi->lsdb);
252 ospf6_lsdb_remove_all(oi->lsupdate_list);
253 ospf6_lsdb_remove_all(oi->lsack_list);
254
255 ospf6_lsdb_delete(oi->lsdb);
256 ospf6_lsdb_delete(oi->lsdb_self);
257
258 ospf6_lsdb_delete(oi->lsupdate_list);
259 ospf6_lsdb_delete(oi->lsack_list);
260
261 ospf6_route_table_delete(oi->route_connected);
262
263 /* cut link */
264 oi->interface->info = NULL;
265
266 /* plist_name */
267 if (oi->plist_name)
268 XFREE(MTYPE_CFG_PLIST_NAME, oi->plist_name);
269
270 ospf6_bfd_info_free(&(oi->bfd_info));
271
272 XFREE(MTYPE_OSPF6_IF, oi);
273 }
274
275 void ospf6_interface_enable(struct ospf6_interface *oi)
276 {
277 UNSET_FLAG(oi->flag, OSPF6_INTERFACE_DISABLE);
278 ospf6_interface_state_update(oi->interface);
279 }
280
281 void ospf6_interface_disable(struct ospf6_interface *oi)
282 {
283 SET_FLAG(oi->flag, OSPF6_INTERFACE_DISABLE);
284
285 thread_execute(master, interface_down, oi, 0);
286
287 ospf6_lsdb_remove_all(oi->lsdb);
288 ospf6_lsdb_remove_all(oi->lsdb_self);
289 ospf6_lsdb_remove_all(oi->lsupdate_list);
290 ospf6_lsdb_remove_all(oi->lsack_list);
291
292 THREAD_OFF(oi->thread_send_hello);
293 THREAD_OFF(oi->thread_send_lsupdate);
294 THREAD_OFF(oi->thread_send_lsack);
295
296 THREAD_OFF(oi->thread_network_lsa);
297 THREAD_OFF(oi->thread_link_lsa);
298 THREAD_OFF(oi->thread_intra_prefix_lsa);
299 }
300
301 static struct in6_addr *
302 ospf6_interface_get_linklocal_address(struct interface *ifp)
303 {
304 struct listnode *n;
305 struct connected *c;
306 struct in6_addr *l = (struct in6_addr *)NULL;
307
308 /* for each connected address */
309 for (ALL_LIST_ELEMENTS_RO(ifp->connected, n, c)) {
310 /* if family not AF_INET6, ignore */
311 if (c->address->family != AF_INET6)
312 continue;
313
314 /* linklocal scope check */
315 if (IN6_IS_ADDR_LINKLOCAL(&c->address->u.prefix6))
316 l = &c->address->u.prefix6;
317 }
318 return l;
319 }
320
321 void ospf6_interface_if_add(struct interface *ifp)
322 {
323 struct ospf6_interface *oi;
324 unsigned int iobuflen;
325
326 oi = (struct ospf6_interface *)ifp->info;
327 if (oi == NULL)
328 return;
329
330 /* Try to adjust I/O buffer size with IfMtu */
331 if (oi->ifmtu == 0)
332 oi->ifmtu = ifp->mtu6;
333 iobuflen = ospf6_iobuf_size(ifp->mtu6);
334 if (oi->ifmtu > iobuflen) {
335 if (IS_OSPF6_DEBUG_INTERFACE)
336 zlog_debug(
337 "Interface %s: IfMtu is adjusted to I/O buffer size: %d.",
338 ifp->name, iobuflen);
339 oi->ifmtu = iobuflen;
340 }
341
342 /* interface start */
343 ospf6_interface_state_update(oi->interface);
344 }
345
346 void ospf6_interface_if_del(struct interface *ifp)
347 {
348 struct ospf6_interface *oi;
349
350 oi = (struct ospf6_interface *)ifp->info;
351 if (oi == NULL)
352 return;
353
354 /* interface stop */
355 if (oi->area)
356 thread_execute(master, interface_down, oi, 0);
357
358 listnode_delete(oi->area->if_list, oi);
359 oi->area = (struct ospf6_area *)NULL;
360
361 /* cut link */
362 oi->interface = NULL;
363 ifp->info = NULL;
364
365 ospf6_interface_delete(oi);
366 }
367
368 void ospf6_interface_state_update(struct interface *ifp)
369 {
370 struct ospf6_interface *oi;
371 unsigned int iobuflen;
372
373 oi = (struct ospf6_interface *)ifp->info;
374 if (oi == NULL)
375 return;
376 if (oi->area == NULL)
377 return;
378 if (CHECK_FLAG(oi->flag, OSPF6_INTERFACE_DISABLE))
379 return;
380
381 /* Adjust the mtu values if the kernel told us something new */
382 if (ifp->mtu6 != oi->ifmtu) {
383 /* If nothing configured, accept it and check for buffer size */
384 if (!oi->c_ifmtu) {
385 oi->ifmtu = ifp->mtu6;
386 iobuflen = ospf6_iobuf_size(ifp->mtu6);
387 if (oi->ifmtu > iobuflen) {
388 if (IS_OSPF6_DEBUG_INTERFACE)
389 zlog_debug(
390 "Interface %s: IfMtu is adjusted to I/O buffer size: %d.",
391 ifp->name, iobuflen);
392 oi->ifmtu = iobuflen;
393 }
394 } else if (oi->c_ifmtu > ifp->mtu6) {
395 oi->ifmtu = ifp->mtu6;
396 zlog_warn(
397 "Configured mtu %u on %s overridden by kernel %u",
398 oi->c_ifmtu, ifp->name, ifp->mtu6);
399 } else
400 oi->ifmtu = oi->c_ifmtu;
401 }
402
403 if (if_is_operative(ifp)
404 && (ospf6_interface_get_linklocal_address(oi->interface)
405 || if_is_loopback(oi->interface)))
406 thread_add_event(master, interface_up, oi, 0, NULL);
407 else
408 thread_add_event(master, interface_down, oi, 0, NULL);
409
410 return;
411 }
412
413 void ospf6_interface_connected_route_update(struct interface *ifp)
414 {
415 struct ospf6_interface *oi;
416 struct ospf6_route *route;
417 struct connected *c;
418 struct listnode *node, *nnode;
419 struct in6_addr nh_addr;
420
421 oi = (struct ospf6_interface *)ifp->info;
422 if (oi == NULL)
423 return;
424
425 /* reset linklocal pointer */
426 oi->linklocal_addr = ospf6_interface_get_linklocal_address(ifp);
427
428 /* if area is null, do not make connected-route list */
429 if (oi->area == NULL)
430 return;
431
432 if (CHECK_FLAG(oi->flag, OSPF6_INTERFACE_DISABLE))
433 return;
434
435 /* update "route to advertise" interface route table */
436 ospf6_route_remove_all(oi->route_connected);
437
438 for (ALL_LIST_ELEMENTS(oi->interface->connected, node, nnode, c)) {
439 if (c->address->family != AF_INET6)
440 continue;
441
442 CONTINUE_IF_ADDRESS_LINKLOCAL(IS_OSPF6_DEBUG_INTERFACE,
443 c->address);
444 CONTINUE_IF_ADDRESS_UNSPECIFIED(IS_OSPF6_DEBUG_INTERFACE,
445 c->address);
446 CONTINUE_IF_ADDRESS_LOOPBACK(IS_OSPF6_DEBUG_INTERFACE,
447 c->address);
448 CONTINUE_IF_ADDRESS_V4COMPAT(IS_OSPF6_DEBUG_INTERFACE,
449 c->address);
450 CONTINUE_IF_ADDRESS_V4MAPPED(IS_OSPF6_DEBUG_INTERFACE,
451 c->address);
452
453 /* apply filter */
454 if (oi->plist_name) {
455 struct prefix_list *plist;
456 enum prefix_list_type ret;
457 char buf[PREFIX2STR_BUFFER];
458
459 prefix2str(c->address, buf, sizeof(buf));
460 plist = prefix_list_lookup(AFI_IP6, oi->plist_name);
461 ret = prefix_list_apply(plist, (void *)c->address);
462 if (ret == PREFIX_DENY) {
463 if (IS_OSPF6_DEBUG_INTERFACE)
464 zlog_debug(
465 "%s on %s filtered by prefix-list %s ",
466 buf, oi->interface->name,
467 oi->plist_name);
468 continue;
469 }
470 }
471
472 route = ospf6_route_create();
473 memcpy(&route->prefix, c->address, sizeof(struct prefix));
474 apply_mask(&route->prefix);
475 route->type = OSPF6_DEST_TYPE_NETWORK;
476 route->path.area_id = oi->area->area_id;
477 route->path.type = OSPF6_PATH_TYPE_INTRA;
478 route->path.cost = oi->cost;
479 inet_pton(AF_INET6, "::1", &nh_addr);
480 ospf6_route_add_nexthop(route, oi->interface->ifindex,
481 &nh_addr);
482 ospf6_route_add(route, oi->route_connected);
483 }
484
485 /* create new Link-LSA */
486 OSPF6_LINK_LSA_SCHEDULE(oi);
487 OSPF6_INTRA_PREFIX_LSA_SCHEDULE_TRANSIT(oi);
488 OSPF6_INTRA_PREFIX_LSA_SCHEDULE_STUB(oi->area);
489 }
490
491 static void ospf6_interface_state_change(u_char next_state,
492 struct ospf6_interface *oi)
493 {
494 u_char prev_state;
495
496 prev_state = oi->state;
497 oi->state = next_state;
498
499 if (prev_state == next_state)
500 return;
501
502 /* log */
503 if (IS_OSPF6_DEBUG_INTERFACE) {
504 zlog_debug("Interface state change %s: %s -> %s",
505 oi->interface->name,
506 ospf6_interface_state_str[prev_state],
507 ospf6_interface_state_str[next_state]);
508 }
509 oi->state_change++;
510
511 if ((prev_state == OSPF6_INTERFACE_DR
512 || prev_state == OSPF6_INTERFACE_BDR)
513 && (next_state != OSPF6_INTERFACE_DR
514 && next_state != OSPF6_INTERFACE_BDR))
515 ospf6_sso(oi->interface->ifindex, &alldrouters6,
516 IPV6_LEAVE_GROUP);
517
518 if ((prev_state != OSPF6_INTERFACE_DR
519 && prev_state != OSPF6_INTERFACE_BDR)
520 && (next_state == OSPF6_INTERFACE_DR
521 || next_state == OSPF6_INTERFACE_BDR))
522 ospf6_sso(oi->interface->ifindex, &alldrouters6,
523 IPV6_JOIN_GROUP);
524
525 OSPF6_ROUTER_LSA_SCHEDULE(oi->area);
526 if (next_state == OSPF6_INTERFACE_DOWN) {
527 OSPF6_NETWORK_LSA_EXECUTE(oi);
528 OSPF6_INTRA_PREFIX_LSA_EXECUTE_TRANSIT(oi);
529 OSPF6_INTRA_PREFIX_LSA_SCHEDULE_STUB(oi->area);
530 } else if (prev_state == OSPF6_INTERFACE_DR
531 || next_state == OSPF6_INTERFACE_DR) {
532 OSPF6_NETWORK_LSA_SCHEDULE(oi);
533 OSPF6_INTRA_PREFIX_LSA_SCHEDULE_TRANSIT(oi);
534 OSPF6_INTRA_PREFIX_LSA_SCHEDULE_STUB(oi->area);
535 }
536
537 hook_call(ospf6_interface_change, oi, next_state, prev_state);
538 }
539
540
541 /* DR Election, RFC2328 section 9.4 */
542
543 #define IS_ELIGIBLE(n) \
544 ((n)->state >= OSPF6_NEIGHBOR_TWOWAY && (n)->priority != 0)
545
546 static struct ospf6_neighbor *better_bdrouter(struct ospf6_neighbor *a,
547 struct ospf6_neighbor *b)
548 {
549 if ((a == NULL || !IS_ELIGIBLE(a) || a->drouter == a->router_id)
550 && (b == NULL || !IS_ELIGIBLE(b) || b->drouter == b->router_id))
551 return NULL;
552 else if (a == NULL || !IS_ELIGIBLE(a) || a->drouter == a->router_id)
553 return b;
554 else if (b == NULL || !IS_ELIGIBLE(b) || b->drouter == b->router_id)
555 return a;
556
557 if (a->bdrouter == a->router_id && b->bdrouter != b->router_id)
558 return a;
559 if (a->bdrouter != a->router_id && b->bdrouter == b->router_id)
560 return b;
561
562 if (a->priority > b->priority)
563 return a;
564 if (a->priority < b->priority)
565 return b;
566
567 if (ntohl(a->router_id) > ntohl(b->router_id))
568 return a;
569 if (ntohl(a->router_id) < ntohl(b->router_id))
570 return b;
571
572 zlog_warn("Router-ID duplicate ?");
573 return a;
574 }
575
576 static struct ospf6_neighbor *better_drouter(struct ospf6_neighbor *a,
577 struct ospf6_neighbor *b)
578 {
579 if ((a == NULL || !IS_ELIGIBLE(a) || a->drouter != a->router_id)
580 && (b == NULL || !IS_ELIGIBLE(b) || b->drouter != b->router_id))
581 return NULL;
582 else if (a == NULL || !IS_ELIGIBLE(a) || a->drouter != a->router_id)
583 return b;
584 else if (b == NULL || !IS_ELIGIBLE(b) || b->drouter != b->router_id)
585 return a;
586
587 if (a->drouter == a->router_id && b->drouter != b->router_id)
588 return a;
589 if (a->drouter != a->router_id && b->drouter == b->router_id)
590 return b;
591
592 if (a->priority > b->priority)
593 return a;
594 if (a->priority < b->priority)
595 return b;
596
597 if (ntohl(a->router_id) > ntohl(b->router_id))
598 return a;
599 if (ntohl(a->router_id) < ntohl(b->router_id))
600 return b;
601
602 zlog_warn("Router-ID duplicate ?");
603 return a;
604 }
605
606 static u_char dr_election(struct ospf6_interface *oi)
607 {
608 struct listnode *node, *nnode;
609 struct ospf6_neighbor *on, *drouter, *bdrouter, myself;
610 struct ospf6_neighbor *best_drouter, *best_bdrouter;
611 u_char next_state = 0;
612
613 drouter = bdrouter = NULL;
614 best_drouter = best_bdrouter = NULL;
615
616 /* pseudo neighbor myself, including noting current DR/BDR (1) */
617 memset(&myself, 0, sizeof(myself));
618 inet_ntop(AF_INET, &oi->area->ospf6->router_id, myself.name,
619 sizeof(myself.name));
620 myself.state = OSPF6_NEIGHBOR_TWOWAY;
621 myself.drouter = oi->drouter;
622 myself.bdrouter = oi->bdrouter;
623 myself.priority = oi->priority;
624 myself.router_id = oi->area->ospf6->router_id;
625
626 /* Electing BDR (2) */
627 for (ALL_LIST_ELEMENTS(oi->neighbor_list, node, nnode, on))
628 bdrouter = better_bdrouter(bdrouter, on);
629
630 best_bdrouter = bdrouter;
631 bdrouter = better_bdrouter(best_bdrouter, &myself);
632
633 /* Electing DR (3) */
634 for (ALL_LIST_ELEMENTS(oi->neighbor_list, node, nnode, on))
635 drouter = better_drouter(drouter, on);
636
637 best_drouter = drouter;
638 drouter = better_drouter(best_drouter, &myself);
639 if (drouter == NULL)
640 drouter = bdrouter;
641
642 /* the router itself is newly/no longer DR/BDR (4) */
643 if ((drouter == &myself && myself.drouter != myself.router_id)
644 || (drouter != &myself && myself.drouter == myself.router_id)
645 || (bdrouter == &myself && myself.bdrouter != myself.router_id)
646 || (bdrouter != &myself && myself.bdrouter == myself.router_id)) {
647 myself.drouter = (drouter ? drouter->router_id : htonl(0));
648 myself.bdrouter = (bdrouter ? bdrouter->router_id : htonl(0));
649
650 /* compatible to Electing BDR (2) */
651 bdrouter = better_bdrouter(best_bdrouter, &myself);
652
653 /* compatible to Electing DR (3) */
654 drouter = better_drouter(best_drouter, &myself);
655 if (drouter == NULL)
656 drouter = bdrouter;
657 }
658
659 /* Set interface state accordingly (5) */
660 if (drouter && drouter == &myself)
661 next_state = OSPF6_INTERFACE_DR;
662 else if (bdrouter && bdrouter == &myself)
663 next_state = OSPF6_INTERFACE_BDR;
664 else
665 next_state = OSPF6_INTERFACE_DROTHER;
666
667 /* If NBMA, schedule Start for each neighbor having priority of 0 (6) */
668 /* XXX */
669
670 /* If DR or BDR change, invoke AdjOK? for each neighbor (7) */
671 /* RFC 2328 section 12.4. Originating LSAs (3) will be handled
672 accordingly after AdjOK */
673 if (oi->drouter != (drouter ? drouter->router_id : htonl(0))
674 || oi->bdrouter != (bdrouter ? bdrouter->router_id : htonl(0))) {
675 if (IS_OSPF6_DEBUG_INTERFACE)
676 zlog_debug("DR Election on %s: DR: %s BDR: %s",
677 oi->interface->name,
678 (drouter ? drouter->name : "0.0.0.0"),
679 (bdrouter ? bdrouter->name : "0.0.0.0"));
680
681 for (ALL_LIST_ELEMENTS_RO(oi->neighbor_list, node, on)) {
682 if (on->state < OSPF6_NEIGHBOR_TWOWAY)
683 continue;
684 /* Schedule AdjOK. */
685 thread_add_event(master, adj_ok, on, 0, NULL);
686 }
687 }
688
689 oi->drouter = (drouter ? drouter->router_id : htonl(0));
690 oi->bdrouter = (bdrouter ? bdrouter->router_id : htonl(0));
691 return next_state;
692 }
693
694
695 /* Interface State Machine */
696 int interface_up(struct thread *thread)
697 {
698 struct ospf6_interface *oi;
699
700 oi = (struct ospf6_interface *)THREAD_ARG(thread);
701 assert(oi && oi->interface);
702
703 if (IS_OSPF6_DEBUG_INTERFACE)
704 zlog_debug("Interface Event %s: [InterfaceUp]",
705 oi->interface->name);
706
707 /* check physical interface is up */
708 if (!if_is_operative(oi->interface)) {
709 if (IS_OSPF6_DEBUG_INTERFACE)
710 zlog_debug(
711 "Interface %s is down, can't execute [InterfaceUp]",
712 oi->interface->name);
713 return 0;
714 }
715
716 /* check interface has a link-local address */
717 if (!(ospf6_interface_get_linklocal_address(oi->interface)
718 || if_is_loopback(oi->interface))) {
719 if (IS_OSPF6_DEBUG_INTERFACE)
720 zlog_debug(
721 "Interface %s has no link local address, can't execute [InterfaceUp]",
722 oi->interface->name);
723 return 0;
724 }
725
726 /* Recompute cost */
727 ospf6_interface_recalculate_cost(oi);
728
729 /* if already enabled, do nothing */
730 if (oi->state > OSPF6_INTERFACE_DOWN) {
731 if (IS_OSPF6_DEBUG_INTERFACE)
732 zlog_debug("Interface %s already enabled",
733 oi->interface->name);
734 return 0;
735 }
736
737 /* If no area assigned, return */
738 if (oi->area == NULL) {
739 zlog_debug(
740 "%s: Not scheduleing Hello for %s as there is no area assigned yet",
741 __func__, oi->interface->name);
742 return 0;
743 }
744
745 /* Join AllSPFRouters */
746 if (ospf6_sso(oi->interface->ifindex, &allspfrouters6, IPV6_JOIN_GROUP)
747 < 0) {
748 if (oi->sso_try_cnt++ < OSPF6_INTERFACE_SSO_RETRY_MAX) {
749 zlog_info(
750 "Scheduling %s for sso retry, trial count: %d",
751 oi->interface->name, oi->sso_try_cnt);
752 thread_add_timer(master, interface_up, oi,
753 OSPF6_INTERFACE_SSO_RETRY_INT, NULL);
754 }
755 return 0;
756 }
757 oi->sso_try_cnt = 0; /* Reset on success */
758
759 /* Update interface route */
760 ospf6_interface_connected_route_update(oi->interface);
761
762 /* Schedule Hello */
763 if (!CHECK_FLAG(oi->flag, OSPF6_INTERFACE_PASSIVE)
764 && !if_is_loopback(oi->interface)) {
765 oi->thread_send_hello = NULL;
766 thread_add_event(master, ospf6_hello_send, oi, 0,
767 &oi->thread_send_hello);
768 }
769
770 /* decide next interface state */
771 if ((if_is_pointopoint(oi->interface))
772 || (oi->type == OSPF_IFTYPE_POINTOPOINT)) {
773 ospf6_interface_state_change(OSPF6_INTERFACE_POINTTOPOINT, oi);
774 } else if (oi->priority == 0)
775 ospf6_interface_state_change(OSPF6_INTERFACE_DROTHER, oi);
776 else {
777 ospf6_interface_state_change(OSPF6_INTERFACE_WAITING, oi);
778 thread_add_timer(master, wait_timer, oi, oi->dead_interval,
779 NULL);
780 }
781
782 return 0;
783 }
784
785 int wait_timer(struct thread *thread)
786 {
787 struct ospf6_interface *oi;
788
789 oi = (struct ospf6_interface *)THREAD_ARG(thread);
790 assert(oi && oi->interface);
791
792 if (IS_OSPF6_DEBUG_INTERFACE)
793 zlog_debug("Interface Event %s: [WaitTimer]",
794 oi->interface->name);
795
796 if (oi->state == OSPF6_INTERFACE_WAITING)
797 ospf6_interface_state_change(dr_election(oi), oi);
798
799 return 0;
800 }
801
802 int backup_seen(struct thread *thread)
803 {
804 struct ospf6_interface *oi;
805
806 oi = (struct ospf6_interface *)THREAD_ARG(thread);
807 assert(oi && oi->interface);
808
809 if (IS_OSPF6_DEBUG_INTERFACE)
810 zlog_debug("Interface Event %s: [BackupSeen]",
811 oi->interface->name);
812
813 if (oi->state == OSPF6_INTERFACE_WAITING)
814 ospf6_interface_state_change(dr_election(oi), oi);
815
816 return 0;
817 }
818
819 int neighbor_change(struct thread *thread)
820 {
821 struct ospf6_interface *oi;
822
823 oi = (struct ospf6_interface *)THREAD_ARG(thread);
824 assert(oi && oi->interface);
825
826 if (IS_OSPF6_DEBUG_INTERFACE)
827 zlog_debug("Interface Event %s: [NeighborChange]",
828 oi->interface->name);
829
830 if (oi->state == OSPF6_INTERFACE_DROTHER
831 || oi->state == OSPF6_INTERFACE_BDR
832 || oi->state == OSPF6_INTERFACE_DR)
833 ospf6_interface_state_change(dr_election(oi), oi);
834
835 return 0;
836 }
837
838 int interface_down(struct thread *thread)
839 {
840 struct ospf6_interface *oi;
841 struct listnode *node, *nnode;
842 struct ospf6_neighbor *on;
843
844 oi = (struct ospf6_interface *)THREAD_ARG(thread);
845 assert(oi && oi->interface);
846
847 if (IS_OSPF6_DEBUG_INTERFACE)
848 zlog_debug("Interface Event %s: [InterfaceDown]",
849 oi->interface->name);
850
851 /* Stop Hellos */
852 THREAD_OFF(oi->thread_send_hello);
853
854 /* Leave AllSPFRouters */
855 if (oi->state > OSPF6_INTERFACE_DOWN)
856 ospf6_sso(oi->interface->ifindex, &allspfrouters6,
857 IPV6_LEAVE_GROUP);
858
859 ospf6_interface_state_change(OSPF6_INTERFACE_DOWN, oi);
860
861 for (ALL_LIST_ELEMENTS(oi->neighbor_list, node, nnode, on))
862 ospf6_neighbor_delete(on);
863
864 list_delete_all_node(oi->neighbor_list);
865
866 /* When interface state is reset, also reset information about
867 * DR election, as it is no longer valid. */
868 oi->drouter = oi->prev_drouter = htonl(0);
869 oi->bdrouter = oi->prev_bdrouter = htonl(0);
870 return 0;
871 }
872
873
874 /* show specified interface structure */
875 static int ospf6_interface_show(struct vty *vty, struct interface *ifp)
876 {
877 struct ospf6_interface *oi;
878 struct connected *c;
879 struct prefix *p;
880 struct listnode *i;
881 char strbuf[PREFIX2STR_BUFFER], drouter[32], bdrouter[32];
882 const char *updown[3] = {"down", "up", NULL};
883 const char *type;
884 struct timeval res, now;
885 char duration[32];
886 struct ospf6_lsa *lsa;
887
888 /* check physical interface type */
889 if (if_is_loopback(ifp))
890 type = "LOOPBACK";
891 else if (if_is_broadcast(ifp))
892 type = "BROADCAST";
893 else if (if_is_pointopoint(ifp))
894 type = "POINTOPOINT";
895 else
896 type = "UNKNOWN";
897
898 vty_out(vty, "%s is %s, type %s\n", ifp->name,
899 updown[if_is_operative(ifp)], type);
900 vty_out(vty, " Interface ID: %d\n", ifp->ifindex);
901
902 if (ifp->info == NULL) {
903 vty_out(vty, " OSPF not enabled on this interface\n");
904 return 0;
905 } else
906 oi = (struct ospf6_interface *)ifp->info;
907
908 vty_out(vty, " Internet Address:\n");
909
910 for (ALL_LIST_ELEMENTS_RO(ifp->connected, i, c)) {
911 p = c->address;
912 prefix2str(p, strbuf, sizeof(strbuf));
913 switch (p->family) {
914 case AF_INET:
915 vty_out(vty, " inet : %s\n", strbuf);
916 break;
917 case AF_INET6:
918 vty_out(vty, " inet6: %s\n", strbuf);
919 break;
920 default:
921 vty_out(vty, " ??? : %s\n", strbuf);
922 break;
923 }
924 }
925
926 if (oi->area) {
927 vty_out(vty,
928 " Instance ID %d, Interface MTU %d (autodetect: %d)\n",
929 oi->instance_id, oi->ifmtu, ifp->mtu6);
930 vty_out(vty, " MTU mismatch detection: %s\n",
931 oi->mtu_ignore ? "disabled" : "enabled");
932 inet_ntop(AF_INET, &oi->area->area_id, strbuf, sizeof(strbuf));
933 vty_out(vty, " Area ID %s, Cost %u\n", strbuf, oi->cost);
934 } else
935 vty_out(vty, " Not Attached to Area\n");
936
937 vty_out(vty, " State %s, Transmit Delay %d sec, Priority %d\n",
938 ospf6_interface_state_str[oi->state], oi->transdelay,
939 oi->priority);
940 vty_out(vty, " Timer intervals configured:\n");
941 vty_out(vty, " Hello %d, Dead %d, Retransmit %d\n",
942 oi->hello_interval, oi->dead_interval, oi->rxmt_interval);
943
944 inet_ntop(AF_INET, &oi->drouter, drouter, sizeof(drouter));
945 inet_ntop(AF_INET, &oi->bdrouter, bdrouter, sizeof(bdrouter));
946 vty_out(vty, " DR: %s BDR: %s\n", drouter, bdrouter);
947
948 vty_out(vty, " Number of I/F scoped LSAs is %u\n", oi->lsdb->count);
949
950 monotime(&now);
951
952 timerclear(&res);
953 if (oi->thread_send_lsupdate)
954 timersub(&oi->thread_send_lsupdate->u.sands, &now, &res);
955 timerstring(&res, duration, sizeof(duration));
956 vty_out(vty,
957 " %d Pending LSAs for LSUpdate in Time %s [thread %s]\n",
958 oi->lsupdate_list->count, duration,
959 (oi->thread_send_lsupdate ? "on" : "off"));
960 for (ALL_LSDB(oi->lsupdate_list, lsa))
961 vty_out(vty, " %s\n", lsa->name);
962
963 timerclear(&res);
964 if (oi->thread_send_lsack)
965 timersub(&oi->thread_send_lsack->u.sands, &now, &res);
966 timerstring(&res, duration, sizeof(duration));
967 vty_out(vty, " %d Pending LSAs for LSAck in Time %s [thread %s]\n",
968 oi->lsack_list->count, duration,
969 (oi->thread_send_lsack ? "on" : "off"));
970 for (ALL_LSDB(oi->lsack_list, lsa))
971 vty_out(vty, " %s\n", lsa->name);
972 ospf6_bfd_show_info(vty, oi->bfd_info, 1);
973 return 0;
974 }
975
976 /* show interface */
977 DEFUN (show_ipv6_ospf6_interface,
978 show_ipv6_ospf6_interface_ifname_cmd,
979 "show ipv6 ospf6 interface [IFNAME]",
980 SHOW_STR
981 IP6_STR
982 OSPF6_STR
983 INTERFACE_STR
984 IFNAME_STR)
985 {
986 int idx_ifname = 4;
987 struct interface *ifp;
988 struct listnode *i;
989
990 if (argc == 5) {
991 ifp = if_lookup_by_name(argv[idx_ifname]->arg, VRF_DEFAULT);
992 if (ifp == NULL) {
993 vty_out(vty, "No such Interface: %s\n",
994 argv[idx_ifname]->arg);
995 return CMD_WARNING;
996 }
997 ospf6_interface_show(vty, ifp);
998 } else {
999 for (ALL_LIST_ELEMENTS_RO(vrf_iflist(VRF_DEFAULT), i, ifp))
1000 ospf6_interface_show(vty, ifp);
1001 }
1002
1003 return CMD_SUCCESS;
1004 }
1005
1006 DEFUN (show_ipv6_ospf6_interface_ifname_prefix,
1007 show_ipv6_ospf6_interface_ifname_prefix_cmd,
1008 "show ipv6 ospf6 interface IFNAME prefix [<X:X::X:X|X:X::X:X/M>] [<match|detail>]",
1009 SHOW_STR
1010 IP6_STR
1011 OSPF6_STR
1012 INTERFACE_STR
1013 IFNAME_STR
1014 "Display connected prefixes to advertise\n"
1015 OSPF6_ROUTE_ADDRESS_STR
1016 OSPF6_ROUTE_PREFIX_STR
1017 OSPF6_ROUTE_MATCH_STR
1018 "Display details of the prefixes\n")
1019 {
1020 int idx_ifname = 4;
1021 int idx_prefix = 6;
1022 struct interface *ifp;
1023 struct ospf6_interface *oi;
1024
1025 ifp = if_lookup_by_name(argv[idx_ifname]->arg, VRF_DEFAULT);
1026 if (ifp == NULL) {
1027 vty_out(vty, "No such Interface: %s\n", argv[idx_ifname]->arg);
1028 return CMD_WARNING;
1029 }
1030
1031 oi = ifp->info;
1032 if (oi == NULL) {
1033 vty_out(vty, "OSPFv3 is not enabled on %s\n",
1034 argv[idx_ifname]->arg);
1035 return CMD_WARNING;
1036 }
1037
1038 ospf6_route_table_show(vty, idx_prefix, argc, argv,
1039 oi->route_connected);
1040
1041 return CMD_SUCCESS;
1042 }
1043
1044 DEFUN (show_ipv6_ospf6_interface_prefix,
1045 show_ipv6_ospf6_interface_prefix_cmd,
1046 "show ipv6 ospf6 interface prefix [<X:X::X:X|X:X::X:X/M>] [<match|detail>]",
1047 SHOW_STR
1048 IP6_STR
1049 OSPF6_STR
1050 INTERFACE_STR
1051 "Display connected prefixes to advertise\n"
1052 OSPF6_ROUTE_ADDRESS_STR
1053 OSPF6_ROUTE_PREFIX_STR
1054 OSPF6_ROUTE_MATCH_STR
1055 "Display details of the prefixes\n")
1056 {
1057 int idx_prefix = 5;
1058 struct listnode *i;
1059 struct ospf6_interface *oi;
1060 struct interface *ifp;
1061
1062 for (ALL_LIST_ELEMENTS_RO(vrf_iflist(VRF_DEFAULT), i, ifp)) {
1063 oi = (struct ospf6_interface *)ifp->info;
1064 if (oi == NULL)
1065 continue;
1066
1067 ospf6_route_table_show(vty, idx_prefix, argc, argv,
1068 oi->route_connected);
1069 }
1070
1071 return CMD_SUCCESS;
1072 }
1073
1074 /* interface variable set command */
1075 DEFUN (ipv6_ospf6_ifmtu,
1076 ipv6_ospf6_ifmtu_cmd,
1077 "ipv6 ospf6 ifmtu (1-65535)",
1078 IP6_STR
1079 OSPF6_STR
1080 "Interface MTU\n"
1081 "OSPFv3 Interface MTU\n"
1082 )
1083 {
1084 VTY_DECLVAR_CONTEXT(interface, ifp);
1085 int idx_number = 3;
1086 struct ospf6_interface *oi;
1087 unsigned int ifmtu, iobuflen;
1088 struct listnode *node, *nnode;
1089 struct ospf6_neighbor *on;
1090
1091 assert(ifp);
1092
1093 oi = (struct ospf6_interface *)ifp->info;
1094 if (oi == NULL)
1095 oi = ospf6_interface_create(ifp);
1096 assert(oi);
1097
1098 ifmtu = strtol(argv[idx_number]->arg, NULL, 10);
1099
1100 if (oi->c_ifmtu == ifmtu)
1101 return CMD_SUCCESS;
1102
1103 if (ifp->mtu6 != 0 && ifp->mtu6 < ifmtu) {
1104 vty_out(vty,
1105 "%s's ospf6 ifmtu cannot go beyond physical mtu (%d)\n",
1106 ifp->name, ifp->mtu6);
1107 return CMD_WARNING_CONFIG_FAILED;
1108 }
1109
1110 if (oi->ifmtu < ifmtu) {
1111 iobuflen = ospf6_iobuf_size(ifmtu);
1112 if (iobuflen < ifmtu) {
1113 vty_out(vty,
1114 "%s's ifmtu is adjusted to I/O buffer size (%d).\n",
1115 ifp->name, iobuflen);
1116 oi->ifmtu = oi->c_ifmtu = iobuflen;
1117 } else
1118 oi->ifmtu = oi->c_ifmtu = ifmtu;
1119 } else
1120 oi->ifmtu = oi->c_ifmtu = ifmtu;
1121
1122 /* re-establish adjacencies */
1123 for (ALL_LIST_ELEMENTS(oi->neighbor_list, node, nnode, on)) {
1124 THREAD_OFF(on->inactivity_timer);
1125 thread_add_event(master, inactivity_timer, on, 0, NULL);
1126 }
1127
1128 return CMD_SUCCESS;
1129 }
1130
1131 DEFUN (no_ipv6_ospf6_ifmtu,
1132 no_ipv6_ospf6_ifmtu_cmd,
1133 "no ipv6 ospf6 ifmtu [(1-65535)]",
1134 NO_STR
1135 IP6_STR
1136 OSPF6_STR
1137 "Interface MTU\n"
1138 "OSPFv3 Interface MTU\n"
1139 )
1140 {
1141 VTY_DECLVAR_CONTEXT(interface, ifp);
1142 struct ospf6_interface *oi;
1143 unsigned int iobuflen;
1144 struct listnode *node, *nnode;
1145 struct ospf6_neighbor *on;
1146
1147 assert(ifp);
1148
1149 oi = (struct ospf6_interface *)ifp->info;
1150 if (oi == NULL)
1151 oi = ospf6_interface_create(ifp);
1152 assert(oi);
1153
1154 if (oi->ifmtu < ifp->mtu) {
1155 iobuflen = ospf6_iobuf_size(ifp->mtu);
1156 if (iobuflen < ifp->mtu) {
1157 vty_out(vty,
1158 "%s's ifmtu is adjusted to I/O buffer size (%d).\n",
1159 ifp->name, iobuflen);
1160 oi->ifmtu = iobuflen;
1161 } else
1162 oi->ifmtu = ifp->mtu;
1163 } else
1164 oi->ifmtu = ifp->mtu;
1165
1166 oi->c_ifmtu = 0;
1167
1168 /* re-establish adjacencies */
1169 for (ALL_LIST_ELEMENTS(oi->neighbor_list, node, nnode, on)) {
1170 THREAD_OFF(on->inactivity_timer);
1171 thread_add_event(master, inactivity_timer, on, 0, NULL);
1172 }
1173
1174 return CMD_SUCCESS;
1175 }
1176
1177 DEFUN (ipv6_ospf6_cost,
1178 ipv6_ospf6_cost_cmd,
1179 "ipv6 ospf6 cost (1-65535)",
1180 IP6_STR
1181 OSPF6_STR
1182 "Interface cost\n"
1183 "Outgoing metric of this interface\n")
1184 {
1185 VTY_DECLVAR_CONTEXT(interface, ifp);
1186 int idx_number = 3;
1187 struct ospf6_interface *oi;
1188 unsigned long int lcost;
1189
1190 assert(ifp);
1191
1192 oi = (struct ospf6_interface *)ifp->info;
1193 if (oi == NULL)
1194 oi = ospf6_interface_create(ifp);
1195 assert(oi);
1196
1197 lcost = strtol(argv[idx_number]->arg, NULL, 10);
1198
1199 if (lcost > UINT32_MAX) {
1200 vty_out(vty, "Cost %ld is out of range\n", lcost);
1201 return CMD_WARNING_CONFIG_FAILED;
1202 }
1203
1204 if (oi->cost == lcost)
1205 return CMD_SUCCESS;
1206
1207 oi->cost = lcost;
1208 SET_FLAG(oi->flag, OSPF6_INTERFACE_NOAUTOCOST);
1209
1210 ospf6_interface_recalculate_cost(oi);
1211
1212 return CMD_SUCCESS;
1213 }
1214
1215 DEFUN (no_ipv6_ospf6_cost,
1216 no_ipv6_ospf6_cost_cmd,
1217 "no ipv6 ospf6 cost [(1-65535)]",
1218 NO_STR
1219 IP6_STR
1220 OSPF6_STR
1221 "Calculate interface cost from bandwidth\n"
1222 "Outgoing metric of this interface\n")
1223 {
1224 VTY_DECLVAR_CONTEXT(interface, ifp);
1225 struct ospf6_interface *oi;
1226 assert(ifp);
1227
1228 oi = (struct ospf6_interface *)ifp->info;
1229 if (oi == NULL)
1230 oi = ospf6_interface_create(ifp);
1231 assert(oi);
1232
1233 UNSET_FLAG(oi->flag, OSPF6_INTERFACE_NOAUTOCOST);
1234
1235 ospf6_interface_recalculate_cost(oi);
1236
1237 return CMD_SUCCESS;
1238 }
1239
1240 DEFUN (auto_cost_reference_bandwidth,
1241 auto_cost_reference_bandwidth_cmd,
1242 "auto-cost reference-bandwidth (1-4294967)",
1243 "Calculate OSPF interface cost according to bandwidth\n"
1244 "Use reference bandwidth method to assign OSPF cost\n"
1245 "The reference bandwidth in terms of Mbits per second\n")
1246 {
1247 VTY_DECLVAR_CONTEXT(ospf6, o);
1248 int idx_number = 2;
1249 struct ospf6_area *oa;
1250 struct ospf6_interface *oi;
1251 struct listnode *i, *j;
1252 u_int32_t refbw;
1253
1254 refbw = strtol(argv[idx_number]->arg, NULL, 10);
1255 if (refbw < 1 || refbw > 4294967) {
1256 vty_out(vty, "reference-bandwidth value is invalid\n");
1257 return CMD_WARNING_CONFIG_FAILED;
1258 }
1259
1260 /* If reference bandwidth is changed. */
1261 if ((refbw) == o->ref_bandwidth)
1262 return CMD_SUCCESS;
1263
1264 o->ref_bandwidth = refbw;
1265 for (ALL_LIST_ELEMENTS_RO(o->area_list, i, oa))
1266 for (ALL_LIST_ELEMENTS_RO(oa->if_list, j, oi))
1267 ospf6_interface_recalculate_cost(oi);
1268
1269 return CMD_SUCCESS;
1270 }
1271
1272 DEFUN (no_auto_cost_reference_bandwidth,
1273 no_auto_cost_reference_bandwidth_cmd,
1274 "no auto-cost reference-bandwidth [(1-4294967)]",
1275 NO_STR
1276 "Calculate OSPF interface cost according to bandwidth\n"
1277 "Use reference bandwidth method to assign OSPF cost\n"
1278 "The reference bandwidth in terms of Mbits per second\n")
1279 {
1280 VTY_DECLVAR_CONTEXT(ospf6, o);
1281 struct ospf6_area *oa;
1282 struct ospf6_interface *oi;
1283 struct listnode *i, *j;
1284
1285 if (o->ref_bandwidth == OSPF6_REFERENCE_BANDWIDTH)
1286 return CMD_SUCCESS;
1287
1288 o->ref_bandwidth = OSPF6_REFERENCE_BANDWIDTH;
1289 for (ALL_LIST_ELEMENTS_RO(o->area_list, i, oa))
1290 for (ALL_LIST_ELEMENTS_RO(oa->if_list, j, oi))
1291 ospf6_interface_recalculate_cost(oi);
1292
1293 return CMD_SUCCESS;
1294 }
1295
1296
1297 DEFUN (ipv6_ospf6_hellointerval,
1298 ipv6_ospf6_hellointerval_cmd,
1299 "ipv6 ospf6 hello-interval (1-65535)",
1300 IP6_STR
1301 OSPF6_STR
1302 "Time between HELLO packets\n"
1303 SECONDS_STR)
1304 {
1305 VTY_DECLVAR_CONTEXT(interface, ifp);
1306 int idx_number = 3;
1307 struct ospf6_interface *oi;
1308 assert(ifp);
1309
1310 oi = (struct ospf6_interface *)ifp->info;
1311 if (oi == NULL)
1312 oi = ospf6_interface_create(ifp);
1313 assert(oi);
1314
1315 oi->hello_interval = strmatch(argv[0]->text, "no")
1316 ? OSPF_HELLO_INTERVAL_DEFAULT
1317 : strtoul(argv[idx_number]->arg, NULL, 10);
1318 return CMD_SUCCESS;
1319 }
1320
1321 ALIAS (ipv6_ospf6_hellointerval,
1322 no_ipv6_ospf6_hellointerval_cmd,
1323 "no ipv6 ospf6 hello-interval [(1-65535)]",
1324 NO_STR
1325 IP6_STR
1326 OSPF6_STR
1327 "Time between HELLO packets\n"
1328 SECONDS_STR)
1329
1330 /* interface variable set command */
1331 DEFUN (ipv6_ospf6_deadinterval,
1332 ipv6_ospf6_deadinterval_cmd,
1333 "ipv6 ospf6 dead-interval (1-65535)",
1334 IP6_STR
1335 OSPF6_STR
1336 "Interval time after which a neighbor is declared down\n"
1337 SECONDS_STR)
1338 {
1339 VTY_DECLVAR_CONTEXT(interface, ifp);
1340 int idx_number = 3;
1341 struct ospf6_interface *oi;
1342 assert(ifp);
1343
1344 oi = (struct ospf6_interface *)ifp->info;
1345 if (oi == NULL)
1346 oi = ospf6_interface_create(ifp);
1347 assert(oi);
1348
1349 oi->dead_interval = strmatch(argv[0]->arg, "no")
1350 ? OSPF_ROUTER_DEAD_INTERVAL_DEFAULT
1351 : strtoul(argv[idx_number]->arg, NULL, 10);
1352 return CMD_SUCCESS;
1353 }
1354
1355 ALIAS (ipv6_ospf6_deadinterval,
1356 no_ipv6_ospf6_deadinterval_cmd,
1357 "no ipv6 ospf6 dead-interval [(1-65535)]",
1358 NO_STR
1359 IP6_STR
1360 OSPF6_STR
1361 "Interval time after which a neighbor is declared down\n"
1362 SECONDS_STR)
1363
1364 /* interface variable set command */
1365 DEFUN (ipv6_ospf6_transmitdelay,
1366 ipv6_ospf6_transmitdelay_cmd,
1367 "ipv6 ospf6 transmit-delay (1-3600)",
1368 IP6_STR
1369 OSPF6_STR
1370 "Link state transmit delay\n"
1371 SECONDS_STR)
1372 {
1373 VTY_DECLVAR_CONTEXT(interface, ifp);
1374 int idx_number = 3;
1375 struct ospf6_interface *oi;
1376 assert(ifp);
1377
1378 oi = (struct ospf6_interface *)ifp->info;
1379 if (oi == NULL)
1380 oi = ospf6_interface_create(ifp);
1381 assert(oi);
1382
1383 oi->transdelay = strmatch(argv[0]->text, "no")
1384 ? OSPF6_INTERFACE_TRANSDELAY
1385 : strtoul(argv[idx_number]->arg, NULL, 10);
1386 return CMD_SUCCESS;
1387 }
1388
1389 ALIAS (ipv6_ospf6_transmitdelay,
1390 no_ipv6_ospf6_transmitdelay_cmd,
1391 "no ipv6 ospf6 transmit-delay [(1-3600)]",
1392 NO_STR
1393 IP6_STR
1394 OSPF6_STR
1395 "Link state transmit delay\n"
1396 SECONDS_STR)
1397
1398 /* interface variable set command */
1399 DEFUN (ipv6_ospf6_retransmitinterval,
1400 ipv6_ospf6_retransmitinterval_cmd,
1401 "ipv6 ospf6 retransmit-interval (1-65535)",
1402 IP6_STR
1403 OSPF6_STR
1404 "Time between retransmitting lost link state advertisements\n"
1405 SECONDS_STR)
1406 {
1407 VTY_DECLVAR_CONTEXT(interface, ifp);
1408 int idx_number = 3;
1409 struct ospf6_interface *oi;
1410 assert(ifp);
1411
1412 oi = (struct ospf6_interface *)ifp->info;
1413 if (oi == NULL)
1414 oi = ospf6_interface_create(ifp);
1415 assert(oi);
1416
1417 oi->rxmt_interval = strmatch(argv[0]->text, "no")
1418 ? OSPF_RETRANSMIT_INTERVAL_DEFAULT
1419 : strtoul(argv[idx_number]->arg, NULL, 10);
1420 return CMD_SUCCESS;
1421 }
1422
1423 ALIAS (ipv6_ospf6_retransmitinterval,
1424 no_ipv6_ospf6_retransmitinterval_cmd,
1425 "no ipv6 ospf6 retransmit-interval [(1-65535)]",
1426 NO_STR
1427 IP6_STR
1428 OSPF6_STR
1429 "Time between retransmitting lost link state advertisements\n"
1430 SECONDS_STR)
1431
1432 /* interface variable set command */
1433 DEFUN (ipv6_ospf6_priority,
1434 ipv6_ospf6_priority_cmd,
1435 "ipv6 ospf6 priority (0-255)",
1436 IP6_STR
1437 OSPF6_STR
1438 "Router priority\n"
1439 "Priority value\n")
1440 {
1441 VTY_DECLVAR_CONTEXT(interface, ifp);
1442 int idx_number = 3;
1443 struct ospf6_interface *oi;
1444 assert(ifp);
1445
1446 oi = (struct ospf6_interface *)ifp->info;
1447 if (oi == NULL)
1448 oi = ospf6_interface_create(ifp);
1449 assert(oi);
1450
1451 oi->priority = strmatch(argv[0]->text, "no")
1452 ? OSPF6_INTERFACE_PRIORITY
1453 : strtoul(argv[idx_number]->arg, NULL, 10);
1454
1455 if (oi->area && (oi->state == OSPF6_INTERFACE_DROTHER
1456 || oi->state == OSPF6_INTERFACE_BDR
1457 || oi->state == OSPF6_INTERFACE_DR))
1458 ospf6_interface_state_change(dr_election(oi), oi);
1459
1460 return CMD_SUCCESS;
1461 }
1462
1463 ALIAS (ipv6_ospf6_priority,
1464 no_ipv6_ospf6_priority_cmd,
1465 "no ipv6 ospf6 priority [(0-255)]",
1466 NO_STR
1467 IP6_STR
1468 OSPF6_STR
1469 "Router priority\n"
1470 "Priority value\n")
1471
1472 DEFUN (ipv6_ospf6_instance,
1473 ipv6_ospf6_instance_cmd,
1474 "ipv6 ospf6 instance-id (0-255)",
1475 IP6_STR
1476 OSPF6_STR
1477 "Instance ID for this interface\n"
1478 "Instance ID value\n")
1479 {
1480 VTY_DECLVAR_CONTEXT(interface, ifp);
1481 int idx_number = 3;
1482 struct ospf6_interface *oi;
1483 assert(ifp);
1484
1485 oi = (struct ospf6_interface *)ifp->info;
1486 if (oi == NULL)
1487 oi = ospf6_interface_create(ifp);
1488 assert(oi);
1489
1490 oi->instance_id = strmatch(argv[0]->text, "no")
1491 ? OSPF6_INTERFACE_INSTANCE_ID
1492 : strtoul(argv[idx_number]->arg, NULL, 10);
1493 return CMD_SUCCESS;
1494 }
1495
1496 ALIAS (ipv6_ospf6_instance,
1497 no_ipv6_ospf6_instance_cmd,
1498 "no ipv6 ospf6 instance-id [(0-255)]",
1499 NO_STR
1500 IP6_STR
1501 OSPF6_STR
1502 "Instance ID for this interface\n"
1503 "Instance ID value\n")
1504
1505 DEFUN (ipv6_ospf6_passive,
1506 ipv6_ospf6_passive_cmd,
1507 "ipv6 ospf6 passive",
1508 IP6_STR
1509 OSPF6_STR
1510 "Passive interface; no adjacency will be formed on this interface\n"
1511 )
1512 {
1513 VTY_DECLVAR_CONTEXT(interface, ifp);
1514 struct ospf6_interface *oi;
1515 struct listnode *node, *nnode;
1516 struct ospf6_neighbor *on;
1517
1518 assert(ifp);
1519
1520 oi = (struct ospf6_interface *)ifp->info;
1521 if (oi == NULL)
1522 oi = ospf6_interface_create(ifp);
1523 assert(oi);
1524
1525 SET_FLAG(oi->flag, OSPF6_INTERFACE_PASSIVE);
1526 THREAD_OFF(oi->thread_send_hello);
1527
1528 for (ALL_LIST_ELEMENTS(oi->neighbor_list, node, nnode, on)) {
1529 THREAD_OFF(on->inactivity_timer);
1530 thread_add_event(master, inactivity_timer, on, 0, NULL);
1531 }
1532
1533 return CMD_SUCCESS;
1534 }
1535
1536 DEFUN (no_ipv6_ospf6_passive,
1537 no_ipv6_ospf6_passive_cmd,
1538 "no ipv6 ospf6 passive",
1539 NO_STR
1540 IP6_STR
1541 OSPF6_STR
1542 "passive interface: No Adjacency will be formed on this I/F\n"
1543 )
1544 {
1545 VTY_DECLVAR_CONTEXT(interface, ifp);
1546 struct ospf6_interface *oi;
1547 assert(ifp);
1548
1549 oi = (struct ospf6_interface *)ifp->info;
1550 if (oi == NULL)
1551 oi = ospf6_interface_create(ifp);
1552 assert(oi);
1553
1554 UNSET_FLAG(oi->flag, OSPF6_INTERFACE_PASSIVE);
1555 THREAD_OFF(oi->thread_send_hello);
1556 oi->thread_send_hello = NULL;
1557 thread_add_event(master, ospf6_hello_send, oi, 0,
1558 &oi->thread_send_hello);
1559
1560 return CMD_SUCCESS;
1561 }
1562
1563 DEFUN (ipv6_ospf6_mtu_ignore,
1564 ipv6_ospf6_mtu_ignore_cmd,
1565 "ipv6 ospf6 mtu-ignore",
1566 IP6_STR
1567 OSPF6_STR
1568 "Disable MTU mismatch detection on this interface\n"
1569 )
1570 {
1571 VTY_DECLVAR_CONTEXT(interface, ifp);
1572 struct ospf6_interface *oi;
1573 assert(ifp);
1574
1575 oi = (struct ospf6_interface *)ifp->info;
1576 if (oi == NULL)
1577 oi = ospf6_interface_create(ifp);
1578 assert(oi);
1579
1580 oi->mtu_ignore = 1;
1581
1582 return CMD_SUCCESS;
1583 }
1584
1585 DEFUN (no_ipv6_ospf6_mtu_ignore,
1586 no_ipv6_ospf6_mtu_ignore_cmd,
1587 "no ipv6 ospf6 mtu-ignore",
1588 NO_STR
1589 IP6_STR
1590 OSPF6_STR
1591 "Disable MTU mismatch detection on this interface\n"
1592 )
1593 {
1594 VTY_DECLVAR_CONTEXT(interface, ifp);
1595 struct ospf6_interface *oi;
1596 assert(ifp);
1597
1598 oi = (struct ospf6_interface *)ifp->info;
1599 if (oi == NULL)
1600 oi = ospf6_interface_create(ifp);
1601 assert(oi);
1602
1603 oi->mtu_ignore = 0;
1604
1605 return CMD_SUCCESS;
1606 }
1607
1608 DEFUN (ipv6_ospf6_advertise_prefix_list,
1609 ipv6_ospf6_advertise_prefix_list_cmd,
1610 "ipv6 ospf6 advertise prefix-list WORD",
1611 IP6_STR
1612 OSPF6_STR
1613 "Advertising options\n"
1614 "Filter prefix using prefix-list\n"
1615 "Prefix list name\n"
1616 )
1617 {
1618 VTY_DECLVAR_CONTEXT(interface, ifp);
1619 int idx_word = 4;
1620 struct ospf6_interface *oi;
1621 assert(ifp);
1622
1623 oi = (struct ospf6_interface *)ifp->info;
1624 if (oi == NULL)
1625 oi = ospf6_interface_create(ifp);
1626 assert(oi);
1627
1628 if (oi->plist_name)
1629 XFREE(MTYPE_CFG_PLIST_NAME, oi->plist_name);
1630 oi->plist_name = XSTRDUP(MTYPE_CFG_PLIST_NAME, argv[idx_word]->arg);
1631
1632 ospf6_interface_connected_route_update(oi->interface);
1633
1634 if (oi->area) {
1635 OSPF6_LINK_LSA_SCHEDULE(oi);
1636 if (oi->state == OSPF6_INTERFACE_DR) {
1637 OSPF6_NETWORK_LSA_SCHEDULE(oi);
1638 OSPF6_INTRA_PREFIX_LSA_SCHEDULE_TRANSIT(oi);
1639 }
1640 OSPF6_INTRA_PREFIX_LSA_SCHEDULE_STUB(oi->area);
1641 }
1642
1643 return CMD_SUCCESS;
1644 }
1645
1646 DEFUN (no_ipv6_ospf6_advertise_prefix_list,
1647 no_ipv6_ospf6_advertise_prefix_list_cmd,
1648 "no ipv6 ospf6 advertise prefix-list [WORD]",
1649 NO_STR
1650 IP6_STR
1651 OSPF6_STR
1652 "Advertising options\n"
1653 "Filter prefix using prefix-list\n"
1654 "Prefix list name\n")
1655 {
1656 VTY_DECLVAR_CONTEXT(interface, ifp);
1657 struct ospf6_interface *oi;
1658 assert(ifp);
1659
1660 oi = (struct ospf6_interface *)ifp->info;
1661 if (oi == NULL)
1662 oi = ospf6_interface_create(ifp);
1663 assert(oi);
1664
1665 if (oi->plist_name)
1666 XFREE(MTYPE_CFG_PLIST_NAME, oi->plist_name);
1667
1668 ospf6_interface_connected_route_update(oi->interface);
1669
1670 if (oi->area) {
1671 OSPF6_LINK_LSA_SCHEDULE(oi);
1672 if (oi->state == OSPF6_INTERFACE_DR) {
1673 OSPF6_NETWORK_LSA_SCHEDULE(oi);
1674 OSPF6_INTRA_PREFIX_LSA_SCHEDULE_TRANSIT(oi);
1675 }
1676 OSPF6_INTRA_PREFIX_LSA_SCHEDULE_STUB(oi->area);
1677 }
1678
1679 return CMD_SUCCESS;
1680 }
1681
1682 DEFUN (ipv6_ospf6_network,
1683 ipv6_ospf6_network_cmd,
1684 "ipv6 ospf6 network <broadcast|point-to-point>",
1685 IP6_STR
1686 OSPF6_STR
1687 "Network type\n"
1688 "Specify OSPF6 broadcast network\n"
1689 "Specify OSPF6 point-to-point network\n"
1690 )
1691 {
1692 VTY_DECLVAR_CONTEXT(interface, ifp);
1693 int idx_network = 3;
1694 struct ospf6_interface *oi;
1695 assert(ifp);
1696
1697 oi = (struct ospf6_interface *)ifp->info;
1698 if (oi == NULL) {
1699 oi = ospf6_interface_create(ifp);
1700 }
1701 assert(oi);
1702
1703 if (strncmp(argv[idx_network]->arg, "b", 1) == 0) {
1704 if (oi->type == OSPF_IFTYPE_BROADCAST)
1705 return CMD_SUCCESS;
1706
1707 oi->type = OSPF_IFTYPE_BROADCAST;
1708 } else if (strncmp(argv[idx_network]->arg, "point-to-p", 10) == 0) {
1709 if (oi->type == OSPF_IFTYPE_POINTOPOINT) {
1710 return CMD_SUCCESS;
1711 }
1712 oi->type = OSPF_IFTYPE_POINTOPOINT;
1713 }
1714
1715 /* Reset the interface */
1716 thread_add_event(master, interface_down, oi, 0, NULL);
1717 thread_add_event(master, interface_up, oi, 0, NULL);
1718
1719 return CMD_SUCCESS;
1720 }
1721
1722 DEFUN (no_ipv6_ospf6_network,
1723 no_ipv6_ospf6_network_cmd,
1724 "no ipv6 ospf6 network [<broadcast|point-to-point>]",
1725 NO_STR
1726 IP6_STR
1727 OSPF6_STR
1728 "Set default network type\n"
1729 "Specify OSPF6 broadcast network\n"
1730 "Specify OSPF6 point-to-point network\n")
1731 {
1732 VTY_DECLVAR_CONTEXT(interface, ifp);
1733 struct ospf6_interface *oi;
1734 int type;
1735
1736 assert(ifp);
1737
1738 oi = (struct ospf6_interface *)ifp->info;
1739 if (oi == NULL) {
1740 return CMD_SUCCESS;
1741 }
1742
1743 type = ospf6_default_iftype(ifp);
1744 if (oi->type == type) {
1745 return CMD_SUCCESS;
1746 }
1747 oi->type = type;
1748
1749 /* Reset the interface */
1750 thread_add_event(master, interface_down, oi, 0, NULL);
1751 thread_add_event(master, interface_up, oi, 0, NULL);
1752
1753 return CMD_SUCCESS;
1754 }
1755
1756 static int config_write_ospf6_interface(struct vty *vty)
1757 {
1758 struct listnode *i;
1759 struct ospf6_interface *oi;
1760 struct interface *ifp;
1761
1762 for (ALL_LIST_ELEMENTS_RO(vrf_iflist(VRF_DEFAULT), i, ifp)) {
1763 oi = (struct ospf6_interface *)ifp->info;
1764 if (oi == NULL)
1765 continue;
1766
1767 vty_frame(vty, "interface %s\n", oi->interface->name);
1768
1769 if (ifp->desc)
1770 vty_out(vty, " description %s\n", ifp->desc);
1771 if (oi->c_ifmtu)
1772 vty_out(vty, " ipv6 ospf6 ifmtu %d\n", oi->c_ifmtu);
1773
1774 if (CHECK_FLAG(oi->flag, OSPF6_INTERFACE_NOAUTOCOST))
1775 vty_out(vty, " ipv6 ospf6 cost %d\n", oi->cost);
1776
1777 if (oi->hello_interval != OSPF6_INTERFACE_HELLO_INTERVAL)
1778 vty_out(vty, " ipv6 ospf6 hello-interval %d\n",
1779 oi->hello_interval);
1780
1781 if (oi->dead_interval != OSPF6_INTERFACE_DEAD_INTERVAL)
1782 vty_out(vty, " ipv6 ospf6 dead-interval %d\n",
1783 oi->dead_interval);
1784
1785 if (oi->rxmt_interval != OSPF6_INTERFACE_RXMT_INTERVAL)
1786 vty_out(vty, " ipv6 ospf6 retransmit-interval %d\n",
1787 oi->rxmt_interval);
1788
1789 if (oi->priority != OSPF6_INTERFACE_PRIORITY)
1790 vty_out(vty, " ipv6 ospf6 priority %d\n", oi->priority);
1791
1792 if (oi->transdelay != OSPF6_INTERFACE_TRANSDELAY)
1793 vty_out(vty, " ipv6 ospf6 transmit-delay %d\n",
1794 oi->transdelay);
1795
1796 if (oi->instance_id != OSPF6_INTERFACE_INSTANCE_ID)
1797 vty_out(vty, " ipv6 ospf6 instance-id %d\n",
1798 oi->instance_id);
1799
1800 if (oi->plist_name)
1801 vty_out(vty, " ipv6 ospf6 advertise prefix-list %s\n",
1802 oi->plist_name);
1803
1804 if (CHECK_FLAG(oi->flag, OSPF6_INTERFACE_PASSIVE))
1805 vty_out(vty, " ipv6 ospf6 passive\n");
1806
1807 if (oi->mtu_ignore)
1808 vty_out(vty, " ipv6 ospf6 mtu-ignore\n");
1809
1810 if (oi->type != ospf6_default_iftype(ifp)) {
1811 if (oi->type == OSPF_IFTYPE_POINTOPOINT)
1812 vty_out(vty,
1813 " ipv6 ospf6 network point-to-point\n");
1814 else if (oi->type == OSPF_IFTYPE_BROADCAST)
1815 vty_out(vty, " ipv6 ospf6 network broadcast\n");
1816 }
1817
1818 ospf6_bfd_write_config(vty, oi);
1819
1820 vty_endframe(vty, "!\n");
1821 }
1822 return 0;
1823 }
1824
1825 static struct cmd_node interface_node = {
1826 INTERFACE_NODE, "%s(config-if)# ", 1 /* VTYSH */
1827 };
1828
1829 void ospf6_interface_init(void)
1830 {
1831 /* Install interface node. */
1832 install_node(&interface_node, config_write_ospf6_interface);
1833 if_cmd_init();
1834
1835 install_element(VIEW_NODE, &show_ipv6_ospf6_interface_prefix_cmd);
1836 install_element(VIEW_NODE, &show_ipv6_ospf6_interface_ifname_cmd);
1837 install_element(VIEW_NODE,
1838 &show_ipv6_ospf6_interface_ifname_prefix_cmd);
1839
1840 install_element(INTERFACE_NODE, &ipv6_ospf6_cost_cmd);
1841 install_element(INTERFACE_NODE, &no_ipv6_ospf6_cost_cmd);
1842 install_element(INTERFACE_NODE, &ipv6_ospf6_ifmtu_cmd);
1843 install_element(INTERFACE_NODE, &no_ipv6_ospf6_ifmtu_cmd);
1844
1845 install_element(INTERFACE_NODE, &ipv6_ospf6_deadinterval_cmd);
1846 install_element(INTERFACE_NODE, &ipv6_ospf6_hellointerval_cmd);
1847 install_element(INTERFACE_NODE, &ipv6_ospf6_priority_cmd);
1848 install_element(INTERFACE_NODE, &ipv6_ospf6_retransmitinterval_cmd);
1849 install_element(INTERFACE_NODE, &ipv6_ospf6_transmitdelay_cmd);
1850 install_element(INTERFACE_NODE, &ipv6_ospf6_instance_cmd);
1851 install_element(INTERFACE_NODE, &no_ipv6_ospf6_deadinterval_cmd);
1852 install_element(INTERFACE_NODE, &no_ipv6_ospf6_hellointerval_cmd);
1853 install_element(INTERFACE_NODE, &no_ipv6_ospf6_priority_cmd);
1854 install_element(INTERFACE_NODE, &no_ipv6_ospf6_retransmitinterval_cmd);
1855 install_element(INTERFACE_NODE, &no_ipv6_ospf6_transmitdelay_cmd);
1856 install_element(INTERFACE_NODE, &no_ipv6_ospf6_instance_cmd);
1857
1858 install_element(INTERFACE_NODE, &ipv6_ospf6_passive_cmd);
1859 install_element(INTERFACE_NODE, &no_ipv6_ospf6_passive_cmd);
1860
1861 install_element(INTERFACE_NODE, &ipv6_ospf6_mtu_ignore_cmd);
1862 install_element(INTERFACE_NODE, &no_ipv6_ospf6_mtu_ignore_cmd);
1863
1864 install_element(INTERFACE_NODE, &ipv6_ospf6_advertise_prefix_list_cmd);
1865 install_element(INTERFACE_NODE,
1866 &no_ipv6_ospf6_advertise_prefix_list_cmd);
1867
1868 install_element(INTERFACE_NODE, &ipv6_ospf6_network_cmd);
1869 install_element(INTERFACE_NODE, &no_ipv6_ospf6_network_cmd);
1870
1871 /* reference bandwidth commands */
1872 install_element(OSPF6_NODE, &auto_cost_reference_bandwidth_cmd);
1873 install_element(OSPF6_NODE, &no_auto_cost_reference_bandwidth_cmd);
1874 }
1875
1876 /* Clear the specified interface structure */
1877 static void ospf6_interface_clear(struct vty *vty, struct interface *ifp)
1878 {
1879 struct ospf6_interface *oi;
1880
1881 if (!if_is_operative(ifp))
1882 return;
1883
1884 if (ifp->info == NULL)
1885 return;
1886
1887 oi = (struct ospf6_interface *)ifp->info;
1888
1889 if (IS_OSPF6_DEBUG_INTERFACE)
1890 zlog_debug("Interface %s: clear by reset", ifp->name);
1891
1892 /* Reset the interface */
1893 thread_add_event(master, interface_down, oi, 0, NULL);
1894 thread_add_event(master, interface_up, oi, 0, NULL);
1895 }
1896
1897 /* Clear interface */
1898 DEFUN (clear_ipv6_ospf6_interface,
1899 clear_ipv6_ospf6_interface_cmd,
1900 "clear ipv6 ospf6 interface [IFNAME]",
1901 CLEAR_STR
1902 IP6_STR
1903 OSPF6_STR
1904 INTERFACE_STR
1905 IFNAME_STR
1906 )
1907 {
1908 int idx_ifname = 4;
1909 struct interface *ifp;
1910 struct listnode *node;
1911
1912 if (argc == 4) /* Clear all the ospfv3 interfaces. */
1913 {
1914 for (ALL_LIST_ELEMENTS_RO(vrf_iflist(VRF_DEFAULT), node, ifp))
1915 ospf6_interface_clear(vty, ifp);
1916 } else /* Interface name is specified. */
1917 {
1918 if ((ifp = if_lookup_by_name(argv[idx_ifname]->arg,
1919 VRF_DEFAULT))
1920 == NULL) {
1921 vty_out(vty, "No such Interface: %s\n",
1922 argv[idx_ifname]->arg);
1923 return CMD_WARNING;
1924 }
1925 ospf6_interface_clear(vty, ifp);
1926 }
1927
1928 return CMD_SUCCESS;
1929 }
1930
1931 void install_element_ospf6_clear_interface(void)
1932 {
1933 install_element(ENABLE_NODE, &clear_ipv6_ospf6_interface_cmd);
1934 }
1935
1936 DEFUN (debug_ospf6_interface,
1937 debug_ospf6_interface_cmd,
1938 "debug ospf6 interface",
1939 DEBUG_STR
1940 OSPF6_STR
1941 "Debug OSPFv3 Interface\n"
1942 )
1943 {
1944 OSPF6_DEBUG_INTERFACE_ON();
1945 return CMD_SUCCESS;
1946 }
1947
1948 DEFUN (no_debug_ospf6_interface,
1949 no_debug_ospf6_interface_cmd,
1950 "no debug ospf6 interface",
1951 NO_STR
1952 DEBUG_STR
1953 OSPF6_STR
1954 "Debug OSPFv3 Interface\n"
1955 )
1956 {
1957 OSPF6_DEBUG_INTERFACE_OFF();
1958 return CMD_SUCCESS;
1959 }
1960
1961 int config_write_ospf6_debug_interface(struct vty *vty)
1962 {
1963 if (IS_OSPF6_DEBUG_INTERFACE)
1964 vty_out(vty, "debug ospf6 interface\n");
1965 return 0;
1966 }
1967
1968 void install_element_ospf6_debug_interface(void)
1969 {
1970 install_element(ENABLE_NODE, &debug_ospf6_interface_cmd);
1971 install_element(ENABLE_NODE, &no_debug_ospf6_interface_cmd);
1972 install_element(CONFIG_NODE, &debug_ospf6_interface_cmd);
1973 install_element(CONFIG_NODE, &no_debug_ospf6_interface_cmd);
1974 }
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