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Merge pull request #1927 from pguibert6WIND/issue_1926
[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 uint8_t 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 uint32_t ospf6_interface_get_cost(struct ospf6_interface *oi)
115 {
116 /* If all else fails, use default OSPF cost */
117 uint32_t cost;
118 uint32_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 = (uint32_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_force_recalculate_cost(struct ospf6_interface *oi)
148 {
149 /* update cost held in route_connected list in ospf6_interface */
150 ospf6_interface_connected_route_update(oi->interface);
151
152 /* execute LSA hooks */
153 if (oi->area) {
154 OSPF6_LINK_LSA_SCHEDULE(oi);
155 OSPF6_ROUTER_LSA_SCHEDULE(oi->area);
156 OSPF6_NETWORK_LSA_SCHEDULE(oi);
157 OSPF6_INTRA_PREFIX_LSA_SCHEDULE_TRANSIT(oi);
158 OSPF6_INTRA_PREFIX_LSA_SCHEDULE_STUB(oi->area);
159 }
160 }
161
162 static void ospf6_interface_recalculate_cost(struct ospf6_interface *oi)
163 {
164 uint32_t newcost;
165
166 newcost = ospf6_interface_get_cost(oi);
167 if (newcost == oi->cost)
168 return;
169 oi->cost = newcost;
170
171 ospf6_interface_force_recalculate_cost(oi);
172 }
173
174 /* Create new ospf6 interface structure */
175 struct ospf6_interface *ospf6_interface_create(struct interface *ifp)
176 {
177 struct ospf6_interface *oi;
178 unsigned int iobuflen;
179
180 oi = (struct ospf6_interface *)XCALLOC(MTYPE_OSPF6_IF,
181 sizeof(struct ospf6_interface));
182
183 if (!oi) {
184 zlog_err("Can't malloc ospf6_interface for ifindex %d",
185 ifp->ifindex);
186 return (struct ospf6_interface *)NULL;
187 }
188
189 oi->area = (struct ospf6_area *)NULL;
190 oi->neighbor_list = list_new();
191 oi->neighbor_list->cmp = ospf6_neighbor_cmp;
192 oi->linklocal_addr = (struct in6_addr *)NULL;
193 oi->instance_id = OSPF6_INTERFACE_INSTANCE_ID;
194 oi->transdelay = OSPF6_INTERFACE_TRANSDELAY;
195 oi->priority = OSPF6_INTERFACE_PRIORITY;
196
197 oi->hello_interval = OSPF_HELLO_INTERVAL_DEFAULT;
198 oi->dead_interval = OSPF_ROUTER_DEAD_INTERVAL_DEFAULT;
199 oi->rxmt_interval = OSPF_RETRANSMIT_INTERVAL_DEFAULT;
200 oi->type = ospf6_default_iftype(ifp);
201 oi->state = OSPF6_INTERFACE_DOWN;
202 oi->flag = 0;
203 oi->mtu_ignore = 0;
204 oi->c_ifmtu = 0;
205
206 /* Try to adjust I/O buffer size with IfMtu */
207 oi->ifmtu = ifp->mtu6;
208 iobuflen = ospf6_iobuf_size(ifp->mtu6);
209 if (oi->ifmtu > iobuflen) {
210 if (IS_OSPF6_DEBUG_INTERFACE)
211 zlog_debug(
212 "Interface %s: IfMtu is adjusted to I/O buffer size: %d.",
213 ifp->name, iobuflen);
214 oi->ifmtu = iobuflen;
215 }
216
217 QOBJ_REG(oi, ospf6_interface);
218
219 oi->lsupdate_list = ospf6_lsdb_create(oi);
220 oi->lsack_list = ospf6_lsdb_create(oi);
221 oi->lsdb = ospf6_lsdb_create(oi);
222 oi->lsdb->hook_add = ospf6_interface_lsdb_hook_add;
223 oi->lsdb->hook_remove = ospf6_interface_lsdb_hook_remove;
224 oi->lsdb_self = ospf6_lsdb_create(oi);
225
226 oi->route_connected =
227 OSPF6_ROUTE_TABLE_CREATE(INTERFACE, CONNECTED_ROUTES);
228 oi->route_connected->scope = oi;
229
230 /* link both */
231 oi->interface = ifp;
232 ifp->info = oi;
233
234 /* Compute cost. */
235 oi->cost = ospf6_interface_get_cost(oi);
236
237 return oi;
238 }
239
240 void ospf6_interface_delete(struct ospf6_interface *oi)
241 {
242 struct listnode *node, *nnode;
243 struct ospf6_neighbor *on;
244
245 QOBJ_UNREG(oi);
246
247 for (ALL_LIST_ELEMENTS(oi->neighbor_list, node, nnode, on))
248 ospf6_neighbor_delete(on);
249
250 list_delete_and_null(&oi->neighbor_list);
251
252 THREAD_OFF(oi->thread_send_hello);
253 THREAD_OFF(oi->thread_send_lsupdate);
254 THREAD_OFF(oi->thread_send_lsack);
255
256 ospf6_lsdb_remove_all(oi->lsdb);
257 ospf6_lsdb_remove_all(oi->lsupdate_list);
258 ospf6_lsdb_remove_all(oi->lsack_list);
259
260 ospf6_lsdb_delete(oi->lsdb);
261 ospf6_lsdb_delete(oi->lsdb_self);
262
263 ospf6_lsdb_delete(oi->lsupdate_list);
264 ospf6_lsdb_delete(oi->lsack_list);
265
266 ospf6_route_table_delete(oi->route_connected);
267
268 /* cut link */
269 oi->interface->info = NULL;
270
271 /* plist_name */
272 if (oi->plist_name)
273 XFREE(MTYPE_CFG_PLIST_NAME, oi->plist_name);
274
275 ospf6_bfd_info_free(&(oi->bfd_info));
276
277 XFREE(MTYPE_OSPF6_IF, oi);
278 }
279
280 void ospf6_interface_enable(struct ospf6_interface *oi)
281 {
282 UNSET_FLAG(oi->flag, OSPF6_INTERFACE_DISABLE);
283 ospf6_interface_state_update(oi->interface);
284 }
285
286 void ospf6_interface_disable(struct ospf6_interface *oi)
287 {
288 SET_FLAG(oi->flag, OSPF6_INTERFACE_DISABLE);
289
290 thread_execute(master, interface_down, oi, 0);
291
292 ospf6_lsdb_remove_all(oi->lsdb);
293 ospf6_lsdb_remove_all(oi->lsdb_self);
294 ospf6_lsdb_remove_all(oi->lsupdate_list);
295 ospf6_lsdb_remove_all(oi->lsack_list);
296
297 THREAD_OFF(oi->thread_send_hello);
298 THREAD_OFF(oi->thread_send_lsupdate);
299 THREAD_OFF(oi->thread_send_lsack);
300
301 THREAD_OFF(oi->thread_network_lsa);
302 THREAD_OFF(oi->thread_link_lsa);
303 THREAD_OFF(oi->thread_intra_prefix_lsa);
304 THREAD_OFF(oi->thread_as_extern_lsa);
305 }
306
307 static struct in6_addr *
308 ospf6_interface_get_linklocal_address(struct interface *ifp)
309 {
310 struct listnode *n;
311 struct connected *c;
312 struct in6_addr *l = (struct in6_addr *)NULL;
313
314 /* for each connected address */
315 for (ALL_LIST_ELEMENTS_RO(ifp->connected, n, c)) {
316 /* if family not AF_INET6, ignore */
317 if (c->address->family != AF_INET6)
318 continue;
319
320 /* linklocal scope check */
321 if (IN6_IS_ADDR_LINKLOCAL(&c->address->u.prefix6))
322 l = &c->address->u.prefix6;
323 }
324 return l;
325 }
326
327 void ospf6_interface_if_add(struct interface *ifp)
328 {
329 struct ospf6_interface *oi;
330 unsigned int iobuflen;
331
332 oi = (struct ospf6_interface *)ifp->info;
333 if (oi == NULL)
334 return;
335
336 /* Try to adjust I/O buffer size with IfMtu */
337 if (oi->ifmtu == 0)
338 oi->ifmtu = ifp->mtu6;
339 iobuflen = ospf6_iobuf_size(ifp->mtu6);
340 if (oi->ifmtu > iobuflen) {
341 if (IS_OSPF6_DEBUG_INTERFACE)
342 zlog_debug(
343 "Interface %s: IfMtu is adjusted to I/O buffer size: %d.",
344 ifp->name, iobuflen);
345 oi->ifmtu = iobuflen;
346 }
347
348 /* interface start */
349 ospf6_interface_state_update(oi->interface);
350 }
351
352 void ospf6_interface_if_del(struct interface *ifp)
353 {
354 struct ospf6_interface *oi;
355
356 oi = (struct ospf6_interface *)ifp->info;
357 if (oi == NULL)
358 return;
359
360 /* interface stop */
361 if (oi->area)
362 thread_execute(master, interface_down, oi, 0);
363
364 listnode_delete(oi->area->if_list, oi);
365 oi->area = (struct ospf6_area *)NULL;
366
367 /* cut link */
368 oi->interface = NULL;
369 ifp->info = NULL;
370
371 ospf6_interface_delete(oi);
372 }
373
374 void ospf6_interface_state_update(struct interface *ifp)
375 {
376 struct ospf6_interface *oi;
377 unsigned int iobuflen;
378
379 oi = (struct ospf6_interface *)ifp->info;
380 if (oi == NULL)
381 return;
382 if (oi->area == NULL)
383 return;
384 if (CHECK_FLAG(oi->flag, OSPF6_INTERFACE_DISABLE))
385 return;
386
387 /* Adjust the mtu values if the kernel told us something new */
388 if (ifp->mtu6 != oi->ifmtu) {
389 /* If nothing configured, accept it and check for buffer size */
390 if (!oi->c_ifmtu) {
391 oi->ifmtu = ifp->mtu6;
392 iobuflen = ospf6_iobuf_size(ifp->mtu6);
393 if (oi->ifmtu > iobuflen) {
394 if (IS_OSPF6_DEBUG_INTERFACE)
395 zlog_debug(
396 "Interface %s: IfMtu is adjusted to I/O buffer size: %d.",
397 ifp->name, iobuflen);
398 oi->ifmtu = iobuflen;
399 }
400 } else if (oi->c_ifmtu > ifp->mtu6) {
401 oi->ifmtu = ifp->mtu6;
402 zlog_warn(
403 "Configured mtu %u on %s overridden by kernel %u",
404 oi->c_ifmtu, ifp->name, ifp->mtu6);
405 } else
406 oi->ifmtu = oi->c_ifmtu;
407 }
408
409 if (if_is_operative(ifp)
410 && (ospf6_interface_get_linklocal_address(oi->interface)
411 || if_is_loopback(oi->interface)))
412 thread_add_event(master, interface_up, oi, 0, NULL);
413 else
414 thread_add_event(master, interface_down, oi, 0, NULL);
415
416 return;
417 }
418
419 void ospf6_interface_connected_route_update(struct interface *ifp)
420 {
421 struct ospf6_interface *oi;
422 struct ospf6_route *route;
423 struct connected *c;
424 struct listnode *node, *nnode;
425 struct in6_addr nh_addr;
426
427 oi = (struct ospf6_interface *)ifp->info;
428 if (oi == NULL)
429 return;
430
431 /* reset linklocal pointer */
432 oi->linklocal_addr = ospf6_interface_get_linklocal_address(ifp);
433
434 /* if area is null, do not make connected-route list */
435 if (oi->area == NULL)
436 return;
437
438 if (CHECK_FLAG(oi->flag, OSPF6_INTERFACE_DISABLE))
439 return;
440
441 /* update "route to advertise" interface route table */
442 ospf6_route_remove_all(oi->route_connected);
443
444 for (ALL_LIST_ELEMENTS(oi->interface->connected, node, nnode, c)) {
445 if (c->address->family != AF_INET6)
446 continue;
447
448 CONTINUE_IF_ADDRESS_LINKLOCAL(IS_OSPF6_DEBUG_INTERFACE,
449 c->address);
450 CONTINUE_IF_ADDRESS_UNSPECIFIED(IS_OSPF6_DEBUG_INTERFACE,
451 c->address);
452 CONTINUE_IF_ADDRESS_LOOPBACK(IS_OSPF6_DEBUG_INTERFACE,
453 c->address);
454 CONTINUE_IF_ADDRESS_V4COMPAT(IS_OSPF6_DEBUG_INTERFACE,
455 c->address);
456 CONTINUE_IF_ADDRESS_V4MAPPED(IS_OSPF6_DEBUG_INTERFACE,
457 c->address);
458
459 /* apply filter */
460 if (oi->plist_name) {
461 struct prefix_list *plist;
462 enum prefix_list_type ret;
463 char buf[PREFIX2STR_BUFFER];
464
465 prefix2str(c->address, buf, sizeof(buf));
466 plist = prefix_list_lookup(AFI_IP6, oi->plist_name);
467 ret = prefix_list_apply(plist, (void *)c->address);
468 if (ret == PREFIX_DENY) {
469 if (IS_OSPF6_DEBUG_INTERFACE)
470 zlog_debug(
471 "%s on %s filtered by prefix-list %s ",
472 buf, oi->interface->name,
473 oi->plist_name);
474 continue;
475 }
476 }
477
478 route = ospf6_route_create();
479 memcpy(&route->prefix, c->address, sizeof(struct prefix));
480 apply_mask(&route->prefix);
481 route->type = OSPF6_DEST_TYPE_NETWORK;
482 route->path.area_id = oi->area->area_id;
483 route->path.type = OSPF6_PATH_TYPE_INTRA;
484 route->path.cost = oi->cost;
485 inet_pton(AF_INET6, "::1", &nh_addr);
486 ospf6_route_add_nexthop(route, oi->interface->ifindex,
487 &nh_addr);
488 ospf6_route_add(route, oi->route_connected);
489 }
490
491 /* create new Link-LSA */
492 OSPF6_LINK_LSA_SCHEDULE(oi);
493 OSPF6_INTRA_PREFIX_LSA_SCHEDULE_TRANSIT(oi);
494 OSPF6_INTRA_PREFIX_LSA_SCHEDULE_STUB(oi->area);
495 }
496
497 static void ospf6_interface_state_change(uint8_t next_state,
498 struct ospf6_interface *oi)
499 {
500 uint8_t prev_state;
501
502 prev_state = oi->state;
503 oi->state = next_state;
504
505 if (prev_state == next_state)
506 return;
507
508 /* log */
509 if (IS_OSPF6_DEBUG_INTERFACE) {
510 zlog_debug("Interface state change %s: %s -> %s",
511 oi->interface->name,
512 ospf6_interface_state_str[prev_state],
513 ospf6_interface_state_str[next_state]);
514 }
515 oi->state_change++;
516
517 if ((prev_state == OSPF6_INTERFACE_DR
518 || prev_state == OSPF6_INTERFACE_BDR)
519 && (next_state != OSPF6_INTERFACE_DR
520 && next_state != OSPF6_INTERFACE_BDR))
521 ospf6_sso(oi->interface->ifindex, &alldrouters6,
522 IPV6_LEAVE_GROUP);
523
524 if ((prev_state != OSPF6_INTERFACE_DR
525 && prev_state != OSPF6_INTERFACE_BDR)
526 && (next_state == OSPF6_INTERFACE_DR
527 || next_state == OSPF6_INTERFACE_BDR))
528 ospf6_sso(oi->interface->ifindex, &alldrouters6,
529 IPV6_JOIN_GROUP);
530
531 OSPF6_ROUTER_LSA_SCHEDULE(oi->area);
532 if (next_state == OSPF6_INTERFACE_DOWN) {
533 OSPF6_NETWORK_LSA_EXECUTE(oi);
534 OSPF6_INTRA_PREFIX_LSA_EXECUTE_TRANSIT(oi);
535 OSPF6_INTRA_PREFIX_LSA_SCHEDULE_STUB(oi->area);
536 OSPF6_INTRA_PREFIX_LSA_EXECUTE_TRANSIT(oi);
537 } else if (prev_state == OSPF6_INTERFACE_DR
538 || next_state == OSPF6_INTERFACE_DR) {
539 OSPF6_NETWORK_LSA_SCHEDULE(oi);
540 OSPF6_INTRA_PREFIX_LSA_SCHEDULE_TRANSIT(oi);
541 OSPF6_INTRA_PREFIX_LSA_SCHEDULE_STUB(oi->area);
542 }
543
544 hook_call(ospf6_interface_change, oi, next_state, prev_state);
545 }
546
547
548 /* DR Election, RFC2328 section 9.4 */
549
550 #define IS_ELIGIBLE(n) \
551 ((n)->state >= OSPF6_NEIGHBOR_TWOWAY && (n)->priority != 0)
552
553 static struct ospf6_neighbor *better_bdrouter(struct ospf6_neighbor *a,
554 struct ospf6_neighbor *b)
555 {
556 if ((a == NULL || !IS_ELIGIBLE(a) || a->drouter == a->router_id)
557 && (b == NULL || !IS_ELIGIBLE(b) || b->drouter == b->router_id))
558 return NULL;
559 else if (a == NULL || !IS_ELIGIBLE(a) || a->drouter == a->router_id)
560 return b;
561 else if (b == NULL || !IS_ELIGIBLE(b) || b->drouter == b->router_id)
562 return a;
563
564 if (a->bdrouter == a->router_id && b->bdrouter != b->router_id)
565 return a;
566 if (a->bdrouter != a->router_id && b->bdrouter == b->router_id)
567 return b;
568
569 if (a->priority > b->priority)
570 return a;
571 if (a->priority < b->priority)
572 return b;
573
574 if (ntohl(a->router_id) > ntohl(b->router_id))
575 return a;
576 if (ntohl(a->router_id) < ntohl(b->router_id))
577 return b;
578
579 zlog_warn("Router-ID duplicate ?");
580 return a;
581 }
582
583 static struct ospf6_neighbor *better_drouter(struct ospf6_neighbor *a,
584 struct ospf6_neighbor *b)
585 {
586 if ((a == NULL || !IS_ELIGIBLE(a) || a->drouter != a->router_id)
587 && (b == NULL || !IS_ELIGIBLE(b) || b->drouter != b->router_id))
588 return NULL;
589 else if (a == NULL || !IS_ELIGIBLE(a) || a->drouter != a->router_id)
590 return b;
591 else if (b == NULL || !IS_ELIGIBLE(b) || b->drouter != b->router_id)
592 return a;
593
594 if (a->drouter == a->router_id && b->drouter != b->router_id)
595 return a;
596 if (a->drouter != a->router_id && b->drouter == b->router_id)
597 return b;
598
599 if (a->priority > b->priority)
600 return a;
601 if (a->priority < b->priority)
602 return b;
603
604 if (ntohl(a->router_id) > ntohl(b->router_id))
605 return a;
606 if (ntohl(a->router_id) < ntohl(b->router_id))
607 return b;
608
609 zlog_warn("Router-ID duplicate ?");
610 return a;
611 }
612
613 static uint8_t dr_election(struct ospf6_interface *oi)
614 {
615 struct listnode *node, *nnode;
616 struct ospf6_neighbor *on, *drouter, *bdrouter, myself;
617 struct ospf6_neighbor *best_drouter, *best_bdrouter;
618 uint8_t next_state = 0;
619
620 drouter = bdrouter = NULL;
621 best_drouter = best_bdrouter = NULL;
622
623 /* pseudo neighbor myself, including noting current DR/BDR (1) */
624 memset(&myself, 0, sizeof(myself));
625 inet_ntop(AF_INET, &oi->area->ospf6->router_id, myself.name,
626 sizeof(myself.name));
627 myself.state = OSPF6_NEIGHBOR_TWOWAY;
628 myself.drouter = oi->drouter;
629 myself.bdrouter = oi->bdrouter;
630 myself.priority = oi->priority;
631 myself.router_id = oi->area->ospf6->router_id;
632
633 /* Electing BDR (2) */
634 for (ALL_LIST_ELEMENTS(oi->neighbor_list, node, nnode, on))
635 bdrouter = better_bdrouter(bdrouter, on);
636
637 best_bdrouter = bdrouter;
638 bdrouter = better_bdrouter(best_bdrouter, &myself);
639
640 /* Electing DR (3) */
641 for (ALL_LIST_ELEMENTS(oi->neighbor_list, node, nnode, on))
642 drouter = better_drouter(drouter, on);
643
644 best_drouter = drouter;
645 drouter = better_drouter(best_drouter, &myself);
646 if (drouter == NULL)
647 drouter = bdrouter;
648
649 /* the router itself is newly/no longer DR/BDR (4) */
650 if ((drouter == &myself && myself.drouter != myself.router_id)
651 || (drouter != &myself && myself.drouter == myself.router_id)
652 || (bdrouter == &myself && myself.bdrouter != myself.router_id)
653 || (bdrouter != &myself && myself.bdrouter == myself.router_id)) {
654 myself.drouter = (drouter ? drouter->router_id : htonl(0));
655 myself.bdrouter = (bdrouter ? bdrouter->router_id : htonl(0));
656
657 /* compatible to Electing BDR (2) */
658 bdrouter = better_bdrouter(best_bdrouter, &myself);
659
660 /* compatible to Electing DR (3) */
661 drouter = better_drouter(best_drouter, &myself);
662 if (drouter == NULL)
663 drouter = bdrouter;
664 }
665
666 /* Set interface state accordingly (5) */
667 if (drouter && drouter == &myself)
668 next_state = OSPF6_INTERFACE_DR;
669 else if (bdrouter && bdrouter == &myself)
670 next_state = OSPF6_INTERFACE_BDR;
671 else
672 next_state = OSPF6_INTERFACE_DROTHER;
673
674 /* If NBMA, schedule Start for each neighbor having priority of 0 (6) */
675 /* XXX */
676
677 /* If DR or BDR change, invoke AdjOK? for each neighbor (7) */
678 /* RFC 2328 section 12.4. Originating LSAs (3) will be handled
679 accordingly after AdjOK */
680 if (oi->drouter != (drouter ? drouter->router_id : htonl(0))
681 || oi->bdrouter != (bdrouter ? bdrouter->router_id : htonl(0))) {
682 if (IS_OSPF6_DEBUG_INTERFACE)
683 zlog_debug("DR Election on %s: DR: %s BDR: %s",
684 oi->interface->name,
685 (drouter ? drouter->name : "0.0.0.0"),
686 (bdrouter ? bdrouter->name : "0.0.0.0"));
687
688 for (ALL_LIST_ELEMENTS_RO(oi->neighbor_list, node, on)) {
689 if (on->state < OSPF6_NEIGHBOR_TWOWAY)
690 continue;
691 /* Schedule AdjOK. */
692 thread_add_event(master, adj_ok, on, 0, NULL);
693 }
694 }
695
696 oi->drouter = (drouter ? drouter->router_id : htonl(0));
697 oi->bdrouter = (bdrouter ? bdrouter->router_id : htonl(0));
698 return next_state;
699 }
700
701
702 /* Interface State Machine */
703 int interface_up(struct thread *thread)
704 {
705 struct ospf6_interface *oi;
706
707 oi = (struct ospf6_interface *)THREAD_ARG(thread);
708 assert(oi && oi->interface);
709
710 if (IS_OSPF6_DEBUG_INTERFACE)
711 zlog_debug("Interface Event %s: [InterfaceUp]",
712 oi->interface->name);
713
714 /* check physical interface is up */
715 if (!if_is_operative(oi->interface)) {
716 if (IS_OSPF6_DEBUG_INTERFACE)
717 zlog_debug(
718 "Interface %s is down, can't execute [InterfaceUp]",
719 oi->interface->name);
720 return 0;
721 }
722
723 /* check interface has a link-local address */
724 if (!(ospf6_interface_get_linklocal_address(oi->interface)
725 || if_is_loopback(oi->interface))) {
726 if (IS_OSPF6_DEBUG_INTERFACE)
727 zlog_debug(
728 "Interface %s has no link local address, can't execute [InterfaceUp]",
729 oi->interface->name);
730 return 0;
731 }
732
733 /* Recompute cost */
734 ospf6_interface_recalculate_cost(oi);
735
736 /* if already enabled, do nothing */
737 if (oi->state > OSPF6_INTERFACE_DOWN) {
738 if (IS_OSPF6_DEBUG_INTERFACE)
739 zlog_debug("Interface %s already enabled",
740 oi->interface->name);
741 return 0;
742 }
743
744 /* If no area assigned, return */
745 if (oi->area == NULL) {
746 zlog_debug(
747 "%s: Not scheduleing Hello for %s as there is no area assigned yet",
748 __func__, oi->interface->name);
749 return 0;
750 }
751
752 /* Join AllSPFRouters */
753 if (ospf6_sso(oi->interface->ifindex, &allspfrouters6, IPV6_JOIN_GROUP)
754 < 0) {
755 if (oi->sso_try_cnt++ < OSPF6_INTERFACE_SSO_RETRY_MAX) {
756 zlog_info(
757 "Scheduling %s for sso retry, trial count: %d",
758 oi->interface->name, oi->sso_try_cnt);
759 thread_add_timer(master, interface_up, oi,
760 OSPF6_INTERFACE_SSO_RETRY_INT, NULL);
761 }
762 return 0;
763 }
764 oi->sso_try_cnt = 0; /* Reset on success */
765
766 /* Update interface route */
767 ospf6_interface_connected_route_update(oi->interface);
768
769 /* Schedule Hello */
770 if (!CHECK_FLAG(oi->flag, OSPF6_INTERFACE_PASSIVE)
771 && !if_is_loopback(oi->interface)) {
772 oi->thread_send_hello = NULL;
773 thread_add_event(master, ospf6_hello_send, oi, 0,
774 &oi->thread_send_hello);
775 }
776
777 /* decide next interface state */
778 if ((if_is_pointopoint(oi->interface))
779 || (oi->type == OSPF_IFTYPE_POINTOPOINT)) {
780 ospf6_interface_state_change(OSPF6_INTERFACE_POINTTOPOINT, oi);
781 } else if (oi->priority == 0)
782 ospf6_interface_state_change(OSPF6_INTERFACE_DROTHER, oi);
783 else {
784 ospf6_interface_state_change(OSPF6_INTERFACE_WAITING, oi);
785 thread_add_timer(master, wait_timer, oi, oi->dead_interval,
786 NULL);
787 }
788
789 return 0;
790 }
791
792 int wait_timer(struct thread *thread)
793 {
794 struct ospf6_interface *oi;
795
796 oi = (struct ospf6_interface *)THREAD_ARG(thread);
797 assert(oi && oi->interface);
798
799 if (IS_OSPF6_DEBUG_INTERFACE)
800 zlog_debug("Interface Event %s: [WaitTimer]",
801 oi->interface->name);
802
803 if (oi->state == OSPF6_INTERFACE_WAITING)
804 ospf6_interface_state_change(dr_election(oi), oi);
805
806 return 0;
807 }
808
809 int backup_seen(struct thread *thread)
810 {
811 struct ospf6_interface *oi;
812
813 oi = (struct ospf6_interface *)THREAD_ARG(thread);
814 assert(oi && oi->interface);
815
816 if (IS_OSPF6_DEBUG_INTERFACE)
817 zlog_debug("Interface Event %s: [BackupSeen]",
818 oi->interface->name);
819
820 if (oi->state == OSPF6_INTERFACE_WAITING)
821 ospf6_interface_state_change(dr_election(oi), oi);
822
823 return 0;
824 }
825
826 int neighbor_change(struct thread *thread)
827 {
828 struct ospf6_interface *oi;
829
830 oi = (struct ospf6_interface *)THREAD_ARG(thread);
831 assert(oi && oi->interface);
832
833 if (IS_OSPF6_DEBUG_INTERFACE)
834 zlog_debug("Interface Event %s: [NeighborChange]",
835 oi->interface->name);
836
837 if (oi->state == OSPF6_INTERFACE_DROTHER
838 || oi->state == OSPF6_INTERFACE_BDR
839 || oi->state == OSPF6_INTERFACE_DR)
840 ospf6_interface_state_change(dr_election(oi), oi);
841
842 return 0;
843 }
844
845 int interface_down(struct thread *thread)
846 {
847 struct ospf6_interface *oi;
848 struct listnode *node, *nnode;
849 struct ospf6_neighbor *on;
850
851 oi = (struct ospf6_interface *)THREAD_ARG(thread);
852 assert(oi && oi->interface);
853
854 if (IS_OSPF6_DEBUG_INTERFACE)
855 zlog_debug("Interface Event %s: [InterfaceDown]",
856 oi->interface->name);
857
858 /* Stop Hellos */
859 THREAD_OFF(oi->thread_send_hello);
860
861 /* Leave AllSPFRouters */
862 if (oi->state > OSPF6_INTERFACE_DOWN)
863 ospf6_sso(oi->interface->ifindex, &allspfrouters6,
864 IPV6_LEAVE_GROUP);
865
866 ospf6_interface_state_change(OSPF6_INTERFACE_DOWN, oi);
867
868 for (ALL_LIST_ELEMENTS(oi->neighbor_list, node, nnode, on))
869 ospf6_neighbor_delete(on);
870
871 list_delete_all_node(oi->neighbor_list);
872
873 /* When interface state is reset, also reset information about
874 * DR election, as it is no longer valid. */
875 oi->drouter = oi->prev_drouter = htonl(0);
876 oi->bdrouter = oi->prev_bdrouter = htonl(0);
877 return 0;
878 }
879
880
881 /* show specified interface structure */
882 static int ospf6_interface_show(struct vty *vty, struct interface *ifp)
883 {
884 struct ospf6_interface *oi;
885 struct connected *c;
886 struct prefix *p;
887 struct listnode *i;
888 char strbuf[PREFIX2STR_BUFFER], drouter[32], bdrouter[32];
889 const char *updown[3] = {"down", "up", NULL};
890 const char *type;
891 struct timeval res, now;
892 char duration[32];
893 struct ospf6_lsa *lsa;
894
895 /* check physical interface type */
896 if (if_is_loopback(ifp))
897 type = "LOOPBACK";
898 else if (if_is_broadcast(ifp))
899 type = "BROADCAST";
900 else if (if_is_pointopoint(ifp))
901 type = "POINTOPOINT";
902 else
903 type = "UNKNOWN";
904
905 vty_out(vty, "%s is %s, type %s\n", ifp->name,
906 updown[if_is_operative(ifp)], type);
907 vty_out(vty, " Interface ID: %d\n", ifp->ifindex);
908
909 if (ifp->info == NULL) {
910 vty_out(vty, " OSPF not enabled on this interface\n");
911 return 0;
912 } else
913 oi = (struct ospf6_interface *)ifp->info;
914
915 vty_out(vty, " Internet Address:\n");
916
917 for (ALL_LIST_ELEMENTS_RO(ifp->connected, i, c)) {
918 p = c->address;
919 prefix2str(p, strbuf, sizeof(strbuf));
920 switch (p->family) {
921 case AF_INET:
922 vty_out(vty, " inet : %s\n", strbuf);
923 break;
924 case AF_INET6:
925 vty_out(vty, " inet6: %s\n", strbuf);
926 break;
927 default:
928 vty_out(vty, " ??? : %s\n", strbuf);
929 break;
930 }
931 }
932
933 if (oi->area) {
934 vty_out(vty,
935 " Instance ID %d, Interface MTU %d (autodetect: %d)\n",
936 oi->instance_id, oi->ifmtu, ifp->mtu6);
937 vty_out(vty, " MTU mismatch detection: %s\n",
938 oi->mtu_ignore ? "disabled" : "enabled");
939 inet_ntop(AF_INET, &oi->area->area_id, strbuf, sizeof(strbuf));
940 vty_out(vty, " Area ID %s, Cost %u\n", strbuf, oi->cost);
941 } else
942 vty_out(vty, " Not Attached to Area\n");
943
944 vty_out(vty, " State %s, Transmit Delay %d sec, Priority %d\n",
945 ospf6_interface_state_str[oi->state], oi->transdelay,
946 oi->priority);
947 vty_out(vty, " Timer intervals configured:\n");
948 vty_out(vty, " Hello %d, Dead %d, Retransmit %d\n",
949 oi->hello_interval, oi->dead_interval, oi->rxmt_interval);
950
951 inet_ntop(AF_INET, &oi->drouter, drouter, sizeof(drouter));
952 inet_ntop(AF_INET, &oi->bdrouter, bdrouter, sizeof(bdrouter));
953 vty_out(vty, " DR: %s BDR: %s\n", drouter, bdrouter);
954
955 vty_out(vty, " Number of I/F scoped LSAs is %u\n", oi->lsdb->count);
956
957 monotime(&now);
958
959 timerclear(&res);
960 if (oi->thread_send_lsupdate)
961 timersub(&oi->thread_send_lsupdate->u.sands, &now, &res);
962 timerstring(&res, duration, sizeof(duration));
963 vty_out(vty,
964 " %d Pending LSAs for LSUpdate in Time %s [thread %s]\n",
965 oi->lsupdate_list->count, duration,
966 (oi->thread_send_lsupdate ? "on" : "off"));
967 for (ALL_LSDB(oi->lsupdate_list, lsa))
968 vty_out(vty, " %s\n", lsa->name);
969
970 timerclear(&res);
971 if (oi->thread_send_lsack)
972 timersub(&oi->thread_send_lsack->u.sands, &now, &res);
973 timerstring(&res, duration, sizeof(duration));
974 vty_out(vty, " %d Pending LSAs for LSAck in Time %s [thread %s]\n",
975 oi->lsack_list->count, duration,
976 (oi->thread_send_lsack ? "on" : "off"));
977 for (ALL_LSDB(oi->lsack_list, lsa))
978 vty_out(vty, " %s\n", lsa->name);
979 ospf6_bfd_show_info(vty, oi->bfd_info, 1);
980 return 0;
981 }
982
983 /* show interface */
984 DEFUN (show_ipv6_ospf6_interface,
985 show_ipv6_ospf6_interface_ifname_cmd,
986 "show ipv6 ospf6 interface [IFNAME]",
987 SHOW_STR
988 IP6_STR
989 OSPF6_STR
990 INTERFACE_STR
991 IFNAME_STR)
992 {
993 struct vrf *vrf = vrf_lookup_by_id(VRF_DEFAULT);
994 int idx_ifname = 4;
995 struct interface *ifp;
996
997 if (argc == 5) {
998 ifp = if_lookup_by_name(argv[idx_ifname]->arg, VRF_DEFAULT);
999 if (ifp == NULL) {
1000 vty_out(vty, "No such Interface: %s\n",
1001 argv[idx_ifname]->arg);
1002 return CMD_WARNING;
1003 }
1004 ospf6_interface_show(vty, ifp);
1005 } else {
1006 FOR_ALL_INTERFACES (vrf, ifp)
1007 ospf6_interface_show(vty, ifp);
1008 }
1009
1010 return CMD_SUCCESS;
1011 }
1012
1013 static int ospf6_interface_show_traffic(struct vty *vty, uint32_t vrf_id,
1014 struct interface *intf_ifp,
1015 int display_once)
1016 {
1017 struct interface *ifp;
1018 struct vrf *vrf = NULL;
1019 struct ospf6_interface *oi = NULL;
1020
1021 vrf = vrf_lookup_by_id(vrf_id);
1022
1023 if (!display_once) {
1024 vty_out(vty, "\n");
1025 vty_out(vty, "%-12s%-17s%-17s%-17s%-17s%-17s\n", "Interface",
1026 " HELLO", " DB-Desc", " LS-Req", " LS-Update",
1027 " LS-Ack");
1028 vty_out(vty, "%-10s%-18s%-18s%-17s%-17s%-17s\n", "",
1029 " Rx/Tx", " Rx/Tx", " Rx/Tx", " Rx/Tx",
1030 " Rx/Tx");
1031 vty_out(vty,
1032 "--------------------------------------------------------------------------------------------\n");
1033 }
1034
1035 if (intf_ifp == NULL) {
1036 FOR_ALL_INTERFACES (vrf, ifp) {
1037 if (ifp->info)
1038 oi = (struct ospf6_interface *)ifp->info;
1039 else
1040 continue;
1041
1042 vty_out(vty,
1043 "%-10s %8u/%-8u %7u/%-7u %7u/%-7u %7u/%-7u %7u/%-7u\n",
1044 oi->interface->name, oi->hello_in,
1045 oi->hello_out, oi->db_desc_in, oi->db_desc_out,
1046 oi->ls_req_in, oi->ls_req_out, oi->ls_upd_in,
1047 oi->ls_upd_out, oi->ls_ack_in, oi->ls_ack_out);
1048 }
1049 } else {
1050 oi = intf_ifp->info;
1051 if (oi == NULL)
1052 return CMD_WARNING;
1053
1054 vty_out(vty,
1055 "%-10s %8u/%-8u %7u/%-7u %7u/%-7u %7u/%-7u %7u/%-7u\n",
1056 oi->interface->name, oi->hello_in, oi->hello_out,
1057 oi->db_desc_in, oi->db_desc_out, oi->ls_req_in,
1058 oi->ls_req_out, oi->ls_upd_in, oi->ls_upd_out,
1059 oi->ls_ack_in, oi->ls_ack_out);
1060 }
1061
1062 return CMD_SUCCESS;
1063 }
1064
1065 /* show interface */
1066 DEFUN (show_ipv6_ospf6_interface_traffic,
1067 show_ipv6_ospf6_interface_traffic_cmd,
1068 "show ipv6 ospf6 interface traffic [IFNAME]",
1069 SHOW_STR
1070 IP6_STR
1071 OSPF6_STR
1072 INTERFACE_STR
1073 "Protocol Packet counters\n"
1074 IFNAME_STR)
1075 {
1076 int idx_ifname = 0;
1077 int display_once = 0;
1078 char *intf_name = NULL;
1079 struct interface *ifp = NULL;
1080
1081 if (argv_find(argv, argc, "IFNAME", &idx_ifname)) {
1082 intf_name = argv[idx_ifname]->arg;
1083 ifp = if_lookup_by_name(intf_name, VRF_DEFAULT);
1084 if (ifp == NULL) {
1085 vty_out(vty, "No such Interface: %s\n", intf_name);
1086 return CMD_WARNING;
1087 }
1088 if (ifp->info == NULL) {
1089 vty_out(vty,
1090 " OSPF not enabled on this interface %s\n",
1091 intf_name);
1092 return 0;
1093 }
1094 }
1095
1096 ospf6_interface_show_traffic(vty, VRF_DEFAULT, ifp, display_once);
1097
1098
1099 return CMD_SUCCESS;
1100 }
1101
1102
1103 DEFUN (show_ipv6_ospf6_interface_ifname_prefix,
1104 show_ipv6_ospf6_interface_ifname_prefix_cmd,
1105 "show ipv6 ospf6 interface IFNAME prefix [<X:X::X:X|X:X::X:X/M>] [<match|detail>]",
1106 SHOW_STR
1107 IP6_STR
1108 OSPF6_STR
1109 INTERFACE_STR
1110 IFNAME_STR
1111 "Display connected prefixes to advertise\n"
1112 OSPF6_ROUTE_ADDRESS_STR
1113 OSPF6_ROUTE_PREFIX_STR
1114 OSPF6_ROUTE_MATCH_STR
1115 "Display details of the prefixes\n")
1116 {
1117 int idx_ifname = 4;
1118 int idx_prefix = 6;
1119 struct interface *ifp;
1120 struct ospf6_interface *oi;
1121
1122 ifp = if_lookup_by_name(argv[idx_ifname]->arg, VRF_DEFAULT);
1123 if (ifp == NULL) {
1124 vty_out(vty, "No such Interface: %s\n", argv[idx_ifname]->arg);
1125 return CMD_WARNING;
1126 }
1127
1128 oi = ifp->info;
1129 if (oi == NULL) {
1130 vty_out(vty, "OSPFv3 is not enabled on %s\n",
1131 argv[idx_ifname]->arg);
1132 return CMD_WARNING;
1133 }
1134
1135 ospf6_route_table_show(vty, idx_prefix, argc, argv,
1136 oi->route_connected);
1137
1138 return CMD_SUCCESS;
1139 }
1140
1141 DEFUN (show_ipv6_ospf6_interface_prefix,
1142 show_ipv6_ospf6_interface_prefix_cmd,
1143 "show ipv6 ospf6 interface prefix [<X:X::X:X|X:X::X:X/M>] [<match|detail>]",
1144 SHOW_STR
1145 IP6_STR
1146 OSPF6_STR
1147 INTERFACE_STR
1148 "Display connected prefixes to advertise\n"
1149 OSPF6_ROUTE_ADDRESS_STR
1150 OSPF6_ROUTE_PREFIX_STR
1151 OSPF6_ROUTE_MATCH_STR
1152 "Display details of the prefixes\n")
1153 {
1154 struct vrf *vrf = vrf_lookup_by_id(VRF_DEFAULT);
1155 int idx_prefix = 5;
1156 struct ospf6_interface *oi;
1157 struct interface *ifp;
1158
1159 FOR_ALL_INTERFACES (vrf, ifp) {
1160 oi = (struct ospf6_interface *)ifp->info;
1161 if (oi == NULL)
1162 continue;
1163
1164 ospf6_route_table_show(vty, idx_prefix, argc, argv,
1165 oi->route_connected);
1166 }
1167
1168 return CMD_SUCCESS;
1169 }
1170
1171 /* interface variable set command */
1172 DEFUN (ipv6_ospf6_ifmtu,
1173 ipv6_ospf6_ifmtu_cmd,
1174 "ipv6 ospf6 ifmtu (1-65535)",
1175 IP6_STR
1176 OSPF6_STR
1177 "Interface MTU\n"
1178 "OSPFv3 Interface MTU\n"
1179 )
1180 {
1181 VTY_DECLVAR_CONTEXT(interface, ifp);
1182 int idx_number = 3;
1183 struct ospf6_interface *oi;
1184 unsigned int ifmtu, iobuflen;
1185 struct listnode *node, *nnode;
1186 struct ospf6_neighbor *on;
1187
1188 assert(ifp);
1189
1190 oi = (struct ospf6_interface *)ifp->info;
1191 if (oi == NULL)
1192 oi = ospf6_interface_create(ifp);
1193 assert(oi);
1194
1195 ifmtu = strtol(argv[idx_number]->arg, NULL, 10);
1196
1197 if (oi->c_ifmtu == ifmtu)
1198 return CMD_SUCCESS;
1199
1200 if (ifp->mtu6 != 0 && ifp->mtu6 < ifmtu) {
1201 vty_out(vty,
1202 "%s's ospf6 ifmtu cannot go beyond physical mtu (%d)\n",
1203 ifp->name, ifp->mtu6);
1204 return CMD_WARNING_CONFIG_FAILED;
1205 }
1206
1207 if (oi->ifmtu < ifmtu) {
1208 iobuflen = ospf6_iobuf_size(ifmtu);
1209 if (iobuflen < ifmtu) {
1210 vty_out(vty,
1211 "%s's ifmtu is adjusted to I/O buffer size (%d).\n",
1212 ifp->name, iobuflen);
1213 oi->ifmtu = oi->c_ifmtu = iobuflen;
1214 } else
1215 oi->ifmtu = oi->c_ifmtu = ifmtu;
1216 } else
1217 oi->ifmtu = oi->c_ifmtu = ifmtu;
1218
1219 /* re-establish adjacencies */
1220 for (ALL_LIST_ELEMENTS(oi->neighbor_list, node, nnode, on)) {
1221 THREAD_OFF(on->inactivity_timer);
1222 thread_add_event(master, inactivity_timer, on, 0, NULL);
1223 }
1224
1225 return CMD_SUCCESS;
1226 }
1227
1228 DEFUN (no_ipv6_ospf6_ifmtu,
1229 no_ipv6_ospf6_ifmtu_cmd,
1230 "no ipv6 ospf6 ifmtu [(1-65535)]",
1231 NO_STR
1232 IP6_STR
1233 OSPF6_STR
1234 "Interface MTU\n"
1235 "OSPFv3 Interface MTU\n"
1236 )
1237 {
1238 VTY_DECLVAR_CONTEXT(interface, ifp);
1239 struct ospf6_interface *oi;
1240 unsigned int iobuflen;
1241 struct listnode *node, *nnode;
1242 struct ospf6_neighbor *on;
1243
1244 assert(ifp);
1245
1246 oi = (struct ospf6_interface *)ifp->info;
1247 if (oi == NULL)
1248 oi = ospf6_interface_create(ifp);
1249 assert(oi);
1250
1251 if (oi->ifmtu < ifp->mtu) {
1252 iobuflen = ospf6_iobuf_size(ifp->mtu);
1253 if (iobuflen < ifp->mtu) {
1254 vty_out(vty,
1255 "%s's ifmtu is adjusted to I/O buffer size (%d).\n",
1256 ifp->name, iobuflen);
1257 oi->ifmtu = iobuflen;
1258 } else
1259 oi->ifmtu = ifp->mtu;
1260 } else
1261 oi->ifmtu = ifp->mtu;
1262
1263 oi->c_ifmtu = 0;
1264
1265 /* re-establish adjacencies */
1266 for (ALL_LIST_ELEMENTS(oi->neighbor_list, node, nnode, on)) {
1267 THREAD_OFF(on->inactivity_timer);
1268 thread_add_event(master, inactivity_timer, on, 0, NULL);
1269 }
1270
1271 return CMD_SUCCESS;
1272 }
1273
1274 DEFUN (ipv6_ospf6_cost,
1275 ipv6_ospf6_cost_cmd,
1276 "ipv6 ospf6 cost (1-65535)",
1277 IP6_STR
1278 OSPF6_STR
1279 "Interface cost\n"
1280 "Outgoing metric of this interface\n")
1281 {
1282 VTY_DECLVAR_CONTEXT(interface, ifp);
1283 int idx_number = 3;
1284 struct ospf6_interface *oi;
1285 unsigned long int lcost;
1286
1287 assert(ifp);
1288
1289 oi = (struct ospf6_interface *)ifp->info;
1290 if (oi == NULL)
1291 oi = ospf6_interface_create(ifp);
1292 assert(oi);
1293
1294 lcost = strtol(argv[idx_number]->arg, NULL, 10);
1295
1296 if (lcost > UINT32_MAX) {
1297 vty_out(vty, "Cost %ld is out of range\n", lcost);
1298 return CMD_WARNING_CONFIG_FAILED;
1299 }
1300
1301 if (oi->cost == lcost)
1302 return CMD_SUCCESS;
1303
1304 oi->cost = lcost;
1305 SET_FLAG(oi->flag, OSPF6_INTERFACE_NOAUTOCOST);
1306
1307 ospf6_interface_force_recalculate_cost(oi);
1308
1309 return CMD_SUCCESS;
1310 }
1311
1312 DEFUN (no_ipv6_ospf6_cost,
1313 no_ipv6_ospf6_cost_cmd,
1314 "no ipv6 ospf6 cost [(1-65535)]",
1315 NO_STR
1316 IP6_STR
1317 OSPF6_STR
1318 "Calculate interface cost from bandwidth\n"
1319 "Outgoing metric of this interface\n")
1320 {
1321 VTY_DECLVAR_CONTEXT(interface, ifp);
1322 struct ospf6_interface *oi;
1323 assert(ifp);
1324
1325 oi = (struct ospf6_interface *)ifp->info;
1326 if (oi == NULL)
1327 oi = ospf6_interface_create(ifp);
1328 assert(oi);
1329
1330 UNSET_FLAG(oi->flag, OSPF6_INTERFACE_NOAUTOCOST);
1331
1332 ospf6_interface_recalculate_cost(oi);
1333
1334 return CMD_SUCCESS;
1335 }
1336
1337 DEFUN (auto_cost_reference_bandwidth,
1338 auto_cost_reference_bandwidth_cmd,
1339 "auto-cost reference-bandwidth (1-4294967)",
1340 "Calculate OSPF interface cost according to bandwidth\n"
1341 "Use reference bandwidth method to assign OSPF cost\n"
1342 "The reference bandwidth in terms of Mbits per second\n")
1343 {
1344 VTY_DECLVAR_CONTEXT(ospf6, o);
1345 int idx_number = 2;
1346 struct ospf6_area *oa;
1347 struct ospf6_interface *oi;
1348 struct listnode *i, *j;
1349 uint32_t refbw;
1350
1351 refbw = strtol(argv[idx_number]->arg, NULL, 10);
1352 if (refbw < 1 || refbw > 4294967) {
1353 vty_out(vty, "reference-bandwidth value is invalid\n");
1354 return CMD_WARNING_CONFIG_FAILED;
1355 }
1356
1357 /* If reference bandwidth is changed. */
1358 if ((refbw) == o->ref_bandwidth)
1359 return CMD_SUCCESS;
1360
1361 o->ref_bandwidth = refbw;
1362 for (ALL_LIST_ELEMENTS_RO(o->area_list, i, oa))
1363 for (ALL_LIST_ELEMENTS_RO(oa->if_list, j, oi))
1364 ospf6_interface_recalculate_cost(oi);
1365
1366 return CMD_SUCCESS;
1367 }
1368
1369 DEFUN (no_auto_cost_reference_bandwidth,
1370 no_auto_cost_reference_bandwidth_cmd,
1371 "no auto-cost reference-bandwidth [(1-4294967)]",
1372 NO_STR
1373 "Calculate OSPF interface cost according to bandwidth\n"
1374 "Use reference bandwidth method to assign OSPF cost\n"
1375 "The reference bandwidth in terms of Mbits per second\n")
1376 {
1377 VTY_DECLVAR_CONTEXT(ospf6, o);
1378 struct ospf6_area *oa;
1379 struct ospf6_interface *oi;
1380 struct listnode *i, *j;
1381
1382 if (o->ref_bandwidth == OSPF6_REFERENCE_BANDWIDTH)
1383 return CMD_SUCCESS;
1384
1385 o->ref_bandwidth = OSPF6_REFERENCE_BANDWIDTH;
1386 for (ALL_LIST_ELEMENTS_RO(o->area_list, i, oa))
1387 for (ALL_LIST_ELEMENTS_RO(oa->if_list, j, oi))
1388 ospf6_interface_recalculate_cost(oi);
1389
1390 return CMD_SUCCESS;
1391 }
1392
1393
1394 DEFUN (ipv6_ospf6_hellointerval,
1395 ipv6_ospf6_hellointerval_cmd,
1396 "ipv6 ospf6 hello-interval (1-65535)",
1397 IP6_STR
1398 OSPF6_STR
1399 "Time between HELLO packets\n"
1400 SECONDS_STR)
1401 {
1402 VTY_DECLVAR_CONTEXT(interface, ifp);
1403 int idx_number = 3;
1404 struct ospf6_interface *oi;
1405 assert(ifp);
1406
1407 oi = (struct ospf6_interface *)ifp->info;
1408 if (oi == NULL)
1409 oi = ospf6_interface_create(ifp);
1410 assert(oi);
1411
1412 oi->hello_interval = strmatch(argv[0]->text, "no")
1413 ? OSPF_HELLO_INTERVAL_DEFAULT
1414 : strtoul(argv[idx_number]->arg, NULL, 10);
1415 return CMD_SUCCESS;
1416 }
1417
1418 ALIAS (ipv6_ospf6_hellointerval,
1419 no_ipv6_ospf6_hellointerval_cmd,
1420 "no ipv6 ospf6 hello-interval [(1-65535)]",
1421 NO_STR
1422 IP6_STR
1423 OSPF6_STR
1424 "Time between HELLO packets\n"
1425 SECONDS_STR)
1426
1427 /* interface variable set command */
1428 DEFUN (ipv6_ospf6_deadinterval,
1429 ipv6_ospf6_deadinterval_cmd,
1430 "ipv6 ospf6 dead-interval (1-65535)",
1431 IP6_STR
1432 OSPF6_STR
1433 "Interval time after which a neighbor is declared down\n"
1434 SECONDS_STR)
1435 {
1436 VTY_DECLVAR_CONTEXT(interface, ifp);
1437 int idx_number = 3;
1438 struct ospf6_interface *oi;
1439 assert(ifp);
1440
1441 oi = (struct ospf6_interface *)ifp->info;
1442 if (oi == NULL)
1443 oi = ospf6_interface_create(ifp);
1444 assert(oi);
1445
1446 oi->dead_interval = strmatch(argv[0]->arg, "no")
1447 ? OSPF_ROUTER_DEAD_INTERVAL_DEFAULT
1448 : strtoul(argv[idx_number]->arg, NULL, 10);
1449 return CMD_SUCCESS;
1450 }
1451
1452 ALIAS (ipv6_ospf6_deadinterval,
1453 no_ipv6_ospf6_deadinterval_cmd,
1454 "no ipv6 ospf6 dead-interval [(1-65535)]",
1455 NO_STR
1456 IP6_STR
1457 OSPF6_STR
1458 "Interval time after which a neighbor is declared down\n"
1459 SECONDS_STR)
1460
1461 /* interface variable set command */
1462 DEFUN (ipv6_ospf6_transmitdelay,
1463 ipv6_ospf6_transmitdelay_cmd,
1464 "ipv6 ospf6 transmit-delay (1-3600)",
1465 IP6_STR
1466 OSPF6_STR
1467 "Link state transmit delay\n"
1468 SECONDS_STR)
1469 {
1470 VTY_DECLVAR_CONTEXT(interface, ifp);
1471 int idx_number = 3;
1472 struct ospf6_interface *oi;
1473 assert(ifp);
1474
1475 oi = (struct ospf6_interface *)ifp->info;
1476 if (oi == NULL)
1477 oi = ospf6_interface_create(ifp);
1478 assert(oi);
1479
1480 oi->transdelay = strmatch(argv[0]->text, "no")
1481 ? OSPF6_INTERFACE_TRANSDELAY
1482 : strtoul(argv[idx_number]->arg, NULL, 10);
1483 return CMD_SUCCESS;
1484 }
1485
1486 ALIAS (ipv6_ospf6_transmitdelay,
1487 no_ipv6_ospf6_transmitdelay_cmd,
1488 "no ipv6 ospf6 transmit-delay [(1-3600)]",
1489 NO_STR
1490 IP6_STR
1491 OSPF6_STR
1492 "Link state transmit delay\n"
1493 SECONDS_STR)
1494
1495 /* interface variable set command */
1496 DEFUN (ipv6_ospf6_retransmitinterval,
1497 ipv6_ospf6_retransmitinterval_cmd,
1498 "ipv6 ospf6 retransmit-interval (1-65535)",
1499 IP6_STR
1500 OSPF6_STR
1501 "Time between retransmitting lost link state advertisements\n"
1502 SECONDS_STR)
1503 {
1504 VTY_DECLVAR_CONTEXT(interface, ifp);
1505 int idx_number = 3;
1506 struct ospf6_interface *oi;
1507 assert(ifp);
1508
1509 oi = (struct ospf6_interface *)ifp->info;
1510 if (oi == NULL)
1511 oi = ospf6_interface_create(ifp);
1512 assert(oi);
1513
1514 oi->rxmt_interval = strmatch(argv[0]->text, "no")
1515 ? OSPF_RETRANSMIT_INTERVAL_DEFAULT
1516 : strtoul(argv[idx_number]->arg, NULL, 10);
1517 return CMD_SUCCESS;
1518 }
1519
1520 ALIAS (ipv6_ospf6_retransmitinterval,
1521 no_ipv6_ospf6_retransmitinterval_cmd,
1522 "no ipv6 ospf6 retransmit-interval [(1-65535)]",
1523 NO_STR
1524 IP6_STR
1525 OSPF6_STR
1526 "Time between retransmitting lost link state advertisements\n"
1527 SECONDS_STR)
1528
1529 /* interface variable set command */
1530 DEFUN (ipv6_ospf6_priority,
1531 ipv6_ospf6_priority_cmd,
1532 "ipv6 ospf6 priority (0-255)",
1533 IP6_STR
1534 OSPF6_STR
1535 "Router priority\n"
1536 "Priority value\n")
1537 {
1538 VTY_DECLVAR_CONTEXT(interface, ifp);
1539 int idx_number = 3;
1540 struct ospf6_interface *oi;
1541 assert(ifp);
1542
1543 oi = (struct ospf6_interface *)ifp->info;
1544 if (oi == NULL)
1545 oi = ospf6_interface_create(ifp);
1546 assert(oi);
1547
1548 oi->priority = strmatch(argv[0]->text, "no")
1549 ? OSPF6_INTERFACE_PRIORITY
1550 : strtoul(argv[idx_number]->arg, NULL, 10);
1551
1552 if (oi->area && (oi->state == OSPF6_INTERFACE_DROTHER
1553 || oi->state == OSPF6_INTERFACE_BDR
1554 || oi->state == OSPF6_INTERFACE_DR))
1555 ospf6_interface_state_change(dr_election(oi), oi);
1556
1557 return CMD_SUCCESS;
1558 }
1559
1560 ALIAS (ipv6_ospf6_priority,
1561 no_ipv6_ospf6_priority_cmd,
1562 "no ipv6 ospf6 priority [(0-255)]",
1563 NO_STR
1564 IP6_STR
1565 OSPF6_STR
1566 "Router priority\n"
1567 "Priority value\n")
1568
1569 DEFUN (ipv6_ospf6_instance,
1570 ipv6_ospf6_instance_cmd,
1571 "ipv6 ospf6 instance-id (0-255)",
1572 IP6_STR
1573 OSPF6_STR
1574 "Instance ID for this interface\n"
1575 "Instance ID value\n")
1576 {
1577 VTY_DECLVAR_CONTEXT(interface, ifp);
1578 int idx_number = 3;
1579 struct ospf6_interface *oi;
1580 assert(ifp);
1581
1582 oi = (struct ospf6_interface *)ifp->info;
1583 if (oi == NULL)
1584 oi = ospf6_interface_create(ifp);
1585 assert(oi);
1586
1587 oi->instance_id = strmatch(argv[0]->text, "no")
1588 ? OSPF6_INTERFACE_INSTANCE_ID
1589 : strtoul(argv[idx_number]->arg, NULL, 10);
1590 return CMD_SUCCESS;
1591 }
1592
1593 ALIAS (ipv6_ospf6_instance,
1594 no_ipv6_ospf6_instance_cmd,
1595 "no ipv6 ospf6 instance-id [(0-255)]",
1596 NO_STR
1597 IP6_STR
1598 OSPF6_STR
1599 "Instance ID for this interface\n"
1600 "Instance ID value\n")
1601
1602 DEFUN (ipv6_ospf6_passive,
1603 ipv6_ospf6_passive_cmd,
1604 "ipv6 ospf6 passive",
1605 IP6_STR
1606 OSPF6_STR
1607 "Passive interface; no adjacency will be formed on this interface\n"
1608 )
1609 {
1610 VTY_DECLVAR_CONTEXT(interface, ifp);
1611 struct ospf6_interface *oi;
1612 struct listnode *node, *nnode;
1613 struct ospf6_neighbor *on;
1614
1615 assert(ifp);
1616
1617 oi = (struct ospf6_interface *)ifp->info;
1618 if (oi == NULL)
1619 oi = ospf6_interface_create(ifp);
1620 assert(oi);
1621
1622 SET_FLAG(oi->flag, OSPF6_INTERFACE_PASSIVE);
1623 THREAD_OFF(oi->thread_send_hello);
1624
1625 for (ALL_LIST_ELEMENTS(oi->neighbor_list, node, nnode, on)) {
1626 THREAD_OFF(on->inactivity_timer);
1627 thread_add_event(master, inactivity_timer, on, 0, NULL);
1628 }
1629
1630 return CMD_SUCCESS;
1631 }
1632
1633 DEFUN (no_ipv6_ospf6_passive,
1634 no_ipv6_ospf6_passive_cmd,
1635 "no ipv6 ospf6 passive",
1636 NO_STR
1637 IP6_STR
1638 OSPF6_STR
1639 "passive interface: No Adjacency will be formed on this I/F\n"
1640 )
1641 {
1642 VTY_DECLVAR_CONTEXT(interface, ifp);
1643 struct ospf6_interface *oi;
1644 assert(ifp);
1645
1646 oi = (struct ospf6_interface *)ifp->info;
1647 if (oi == NULL)
1648 oi = ospf6_interface_create(ifp);
1649 assert(oi);
1650
1651 UNSET_FLAG(oi->flag, OSPF6_INTERFACE_PASSIVE);
1652 THREAD_OFF(oi->thread_send_hello);
1653 oi->thread_send_hello = NULL;
1654 thread_add_event(master, ospf6_hello_send, oi, 0,
1655 &oi->thread_send_hello);
1656
1657 return CMD_SUCCESS;
1658 }
1659
1660 DEFUN (ipv6_ospf6_mtu_ignore,
1661 ipv6_ospf6_mtu_ignore_cmd,
1662 "ipv6 ospf6 mtu-ignore",
1663 IP6_STR
1664 OSPF6_STR
1665 "Disable MTU mismatch detection on this interface\n"
1666 )
1667 {
1668 VTY_DECLVAR_CONTEXT(interface, ifp);
1669 struct ospf6_interface *oi;
1670 assert(ifp);
1671
1672 oi = (struct ospf6_interface *)ifp->info;
1673 if (oi == NULL)
1674 oi = ospf6_interface_create(ifp);
1675 assert(oi);
1676
1677 oi->mtu_ignore = 1;
1678
1679 return CMD_SUCCESS;
1680 }
1681
1682 DEFUN (no_ipv6_ospf6_mtu_ignore,
1683 no_ipv6_ospf6_mtu_ignore_cmd,
1684 "no ipv6 ospf6 mtu-ignore",
1685 NO_STR
1686 IP6_STR
1687 OSPF6_STR
1688 "Disable MTU mismatch detection on this interface\n"
1689 )
1690 {
1691 VTY_DECLVAR_CONTEXT(interface, ifp);
1692 struct ospf6_interface *oi;
1693 assert(ifp);
1694
1695 oi = (struct ospf6_interface *)ifp->info;
1696 if (oi == NULL)
1697 oi = ospf6_interface_create(ifp);
1698 assert(oi);
1699
1700 oi->mtu_ignore = 0;
1701
1702 return CMD_SUCCESS;
1703 }
1704
1705 DEFUN (ipv6_ospf6_advertise_prefix_list,
1706 ipv6_ospf6_advertise_prefix_list_cmd,
1707 "ipv6 ospf6 advertise prefix-list WORD",
1708 IP6_STR
1709 OSPF6_STR
1710 "Advertising options\n"
1711 "Filter prefix using prefix-list\n"
1712 "Prefix list name\n"
1713 )
1714 {
1715 VTY_DECLVAR_CONTEXT(interface, ifp);
1716 int idx_word = 4;
1717 struct ospf6_interface *oi;
1718 assert(ifp);
1719
1720 oi = (struct ospf6_interface *)ifp->info;
1721 if (oi == NULL)
1722 oi = ospf6_interface_create(ifp);
1723 assert(oi);
1724
1725 if (oi->plist_name)
1726 XFREE(MTYPE_CFG_PLIST_NAME, oi->plist_name);
1727 oi->plist_name = XSTRDUP(MTYPE_CFG_PLIST_NAME, argv[idx_word]->arg);
1728
1729 ospf6_interface_connected_route_update(oi->interface);
1730
1731 if (oi->area) {
1732 OSPF6_LINK_LSA_SCHEDULE(oi);
1733 if (oi->state == OSPF6_INTERFACE_DR) {
1734 OSPF6_NETWORK_LSA_SCHEDULE(oi);
1735 OSPF6_INTRA_PREFIX_LSA_SCHEDULE_TRANSIT(oi);
1736 }
1737 OSPF6_INTRA_PREFIX_LSA_SCHEDULE_STUB(oi->area);
1738 }
1739
1740 return CMD_SUCCESS;
1741 }
1742
1743 DEFUN (no_ipv6_ospf6_advertise_prefix_list,
1744 no_ipv6_ospf6_advertise_prefix_list_cmd,
1745 "no ipv6 ospf6 advertise prefix-list [WORD]",
1746 NO_STR
1747 IP6_STR
1748 OSPF6_STR
1749 "Advertising options\n"
1750 "Filter prefix using prefix-list\n"
1751 "Prefix list name\n")
1752 {
1753 VTY_DECLVAR_CONTEXT(interface, ifp);
1754 struct ospf6_interface *oi;
1755 assert(ifp);
1756
1757 oi = (struct ospf6_interface *)ifp->info;
1758 if (oi == NULL)
1759 oi = ospf6_interface_create(ifp);
1760 assert(oi);
1761
1762 if (oi->plist_name)
1763 XFREE(MTYPE_CFG_PLIST_NAME, oi->plist_name);
1764
1765 ospf6_interface_connected_route_update(oi->interface);
1766
1767 if (oi->area) {
1768 OSPF6_LINK_LSA_SCHEDULE(oi);
1769 if (oi->state == OSPF6_INTERFACE_DR) {
1770 OSPF6_NETWORK_LSA_SCHEDULE(oi);
1771 OSPF6_INTRA_PREFIX_LSA_SCHEDULE_TRANSIT(oi);
1772 }
1773 OSPF6_INTRA_PREFIX_LSA_SCHEDULE_STUB(oi->area);
1774 }
1775
1776 return CMD_SUCCESS;
1777 }
1778
1779 DEFUN (ipv6_ospf6_network,
1780 ipv6_ospf6_network_cmd,
1781 "ipv6 ospf6 network <broadcast|point-to-point>",
1782 IP6_STR
1783 OSPF6_STR
1784 "Network type\n"
1785 "Specify OSPF6 broadcast network\n"
1786 "Specify OSPF6 point-to-point network\n"
1787 )
1788 {
1789 VTY_DECLVAR_CONTEXT(interface, ifp);
1790 int idx_network = 3;
1791 struct ospf6_interface *oi;
1792 assert(ifp);
1793
1794 oi = (struct ospf6_interface *)ifp->info;
1795 if (oi == NULL) {
1796 oi = ospf6_interface_create(ifp);
1797 }
1798 assert(oi);
1799
1800 if (strncmp(argv[idx_network]->arg, "b", 1) == 0) {
1801 if (oi->type == OSPF_IFTYPE_BROADCAST)
1802 return CMD_SUCCESS;
1803
1804 oi->type = OSPF_IFTYPE_BROADCAST;
1805 } else if (strncmp(argv[idx_network]->arg, "point-to-p", 10) == 0) {
1806 if (oi->type == OSPF_IFTYPE_POINTOPOINT) {
1807 return CMD_SUCCESS;
1808 }
1809 oi->type = OSPF_IFTYPE_POINTOPOINT;
1810 }
1811
1812 /* Reset the interface */
1813 thread_add_event(master, interface_down, oi, 0, NULL);
1814 thread_add_event(master, interface_up, oi, 0, NULL);
1815
1816 return CMD_SUCCESS;
1817 }
1818
1819 DEFUN (no_ipv6_ospf6_network,
1820 no_ipv6_ospf6_network_cmd,
1821 "no ipv6 ospf6 network [<broadcast|point-to-point>]",
1822 NO_STR
1823 IP6_STR
1824 OSPF6_STR
1825 "Set default network type\n"
1826 "Specify OSPF6 broadcast network\n"
1827 "Specify OSPF6 point-to-point network\n")
1828 {
1829 VTY_DECLVAR_CONTEXT(interface, ifp);
1830 struct ospf6_interface *oi;
1831 int type;
1832
1833 assert(ifp);
1834
1835 oi = (struct ospf6_interface *)ifp->info;
1836 if (oi == NULL) {
1837 return CMD_SUCCESS;
1838 }
1839
1840 type = ospf6_default_iftype(ifp);
1841 if (oi->type == type) {
1842 return CMD_SUCCESS;
1843 }
1844 oi->type = type;
1845
1846 /* Reset the interface */
1847 thread_add_event(master, interface_down, oi, 0, NULL);
1848 thread_add_event(master, interface_up, oi, 0, NULL);
1849
1850 return CMD_SUCCESS;
1851 }
1852
1853 static int config_write_ospf6_interface(struct vty *vty)
1854 {
1855 struct vrf *vrf = vrf_lookup_by_id(VRF_DEFAULT);
1856 struct ospf6_interface *oi;
1857 struct interface *ifp;
1858
1859 FOR_ALL_INTERFACES (vrf, ifp) {
1860 oi = (struct ospf6_interface *)ifp->info;
1861 if (oi == NULL)
1862 continue;
1863
1864 vty_frame(vty, "interface %s\n", oi->interface->name);
1865
1866 if (ifp->desc)
1867 vty_out(vty, " description %s\n", ifp->desc);
1868 if (oi->c_ifmtu)
1869 vty_out(vty, " ipv6 ospf6 ifmtu %d\n", oi->c_ifmtu);
1870
1871 if (CHECK_FLAG(oi->flag, OSPF6_INTERFACE_NOAUTOCOST))
1872 vty_out(vty, " ipv6 ospf6 cost %d\n", oi->cost);
1873
1874 if (oi->hello_interval != OSPF6_INTERFACE_HELLO_INTERVAL)
1875 vty_out(vty, " ipv6 ospf6 hello-interval %d\n",
1876 oi->hello_interval);
1877
1878 if (oi->dead_interval != OSPF6_INTERFACE_DEAD_INTERVAL)
1879 vty_out(vty, " ipv6 ospf6 dead-interval %d\n",
1880 oi->dead_interval);
1881
1882 if (oi->rxmt_interval != OSPF6_INTERFACE_RXMT_INTERVAL)
1883 vty_out(vty, " ipv6 ospf6 retransmit-interval %d\n",
1884 oi->rxmt_interval);
1885
1886 if (oi->priority != OSPF6_INTERFACE_PRIORITY)
1887 vty_out(vty, " ipv6 ospf6 priority %d\n", oi->priority);
1888
1889 if (oi->transdelay != OSPF6_INTERFACE_TRANSDELAY)
1890 vty_out(vty, " ipv6 ospf6 transmit-delay %d\n",
1891 oi->transdelay);
1892
1893 if (oi->instance_id != OSPF6_INTERFACE_INSTANCE_ID)
1894 vty_out(vty, " ipv6 ospf6 instance-id %d\n",
1895 oi->instance_id);
1896
1897 if (oi->plist_name)
1898 vty_out(vty, " ipv6 ospf6 advertise prefix-list %s\n",
1899 oi->plist_name);
1900
1901 if (CHECK_FLAG(oi->flag, OSPF6_INTERFACE_PASSIVE))
1902 vty_out(vty, " ipv6 ospf6 passive\n");
1903
1904 if (oi->mtu_ignore)
1905 vty_out(vty, " ipv6 ospf6 mtu-ignore\n");
1906
1907 if (oi->type != ospf6_default_iftype(ifp)) {
1908 if (oi->type == OSPF_IFTYPE_POINTOPOINT)
1909 vty_out(vty,
1910 " ipv6 ospf6 network point-to-point\n");
1911 else if (oi->type == OSPF_IFTYPE_BROADCAST)
1912 vty_out(vty, " ipv6 ospf6 network broadcast\n");
1913 }
1914
1915 ospf6_bfd_write_config(vty, oi);
1916
1917 vty_endframe(vty, "!\n");
1918 }
1919 return 0;
1920 }
1921
1922 static struct cmd_node interface_node = {
1923 INTERFACE_NODE, "%s(config-if)# ", 1 /* VTYSH */
1924 };
1925
1926 void ospf6_interface_init(void)
1927 {
1928 /* Install interface node. */
1929 install_node(&interface_node, config_write_ospf6_interface);
1930 if_cmd_init();
1931
1932 install_element(VIEW_NODE, &show_ipv6_ospf6_interface_prefix_cmd);
1933 install_element(VIEW_NODE, &show_ipv6_ospf6_interface_ifname_cmd);
1934 install_element(VIEW_NODE,
1935 &show_ipv6_ospf6_interface_ifname_prefix_cmd);
1936 install_element(VIEW_NODE, &show_ipv6_ospf6_interface_traffic_cmd);
1937
1938 install_element(INTERFACE_NODE, &ipv6_ospf6_cost_cmd);
1939 install_element(INTERFACE_NODE, &no_ipv6_ospf6_cost_cmd);
1940 install_element(INTERFACE_NODE, &ipv6_ospf6_ifmtu_cmd);
1941 install_element(INTERFACE_NODE, &no_ipv6_ospf6_ifmtu_cmd);
1942
1943 install_element(INTERFACE_NODE, &ipv6_ospf6_deadinterval_cmd);
1944 install_element(INTERFACE_NODE, &ipv6_ospf6_hellointerval_cmd);
1945 install_element(INTERFACE_NODE, &ipv6_ospf6_priority_cmd);
1946 install_element(INTERFACE_NODE, &ipv6_ospf6_retransmitinterval_cmd);
1947 install_element(INTERFACE_NODE, &ipv6_ospf6_transmitdelay_cmd);
1948 install_element(INTERFACE_NODE, &ipv6_ospf6_instance_cmd);
1949 install_element(INTERFACE_NODE, &no_ipv6_ospf6_deadinterval_cmd);
1950 install_element(INTERFACE_NODE, &no_ipv6_ospf6_hellointerval_cmd);
1951 install_element(INTERFACE_NODE, &no_ipv6_ospf6_priority_cmd);
1952 install_element(INTERFACE_NODE, &no_ipv6_ospf6_retransmitinterval_cmd);
1953 install_element(INTERFACE_NODE, &no_ipv6_ospf6_transmitdelay_cmd);
1954 install_element(INTERFACE_NODE, &no_ipv6_ospf6_instance_cmd);
1955
1956 install_element(INTERFACE_NODE, &ipv6_ospf6_passive_cmd);
1957 install_element(INTERFACE_NODE, &no_ipv6_ospf6_passive_cmd);
1958
1959 install_element(INTERFACE_NODE, &ipv6_ospf6_mtu_ignore_cmd);
1960 install_element(INTERFACE_NODE, &no_ipv6_ospf6_mtu_ignore_cmd);
1961
1962 install_element(INTERFACE_NODE, &ipv6_ospf6_advertise_prefix_list_cmd);
1963 install_element(INTERFACE_NODE,
1964 &no_ipv6_ospf6_advertise_prefix_list_cmd);
1965
1966 install_element(INTERFACE_NODE, &ipv6_ospf6_network_cmd);
1967 install_element(INTERFACE_NODE, &no_ipv6_ospf6_network_cmd);
1968
1969 /* reference bandwidth commands */
1970 install_element(OSPF6_NODE, &auto_cost_reference_bandwidth_cmd);
1971 install_element(OSPF6_NODE, &no_auto_cost_reference_bandwidth_cmd);
1972 }
1973
1974 /* Clear the specified interface structure */
1975 static void ospf6_interface_clear(struct vty *vty, struct interface *ifp)
1976 {
1977 struct ospf6_interface *oi;
1978
1979 if (!if_is_operative(ifp))
1980 return;
1981
1982 if (ifp->info == NULL)
1983 return;
1984
1985 oi = (struct ospf6_interface *)ifp->info;
1986
1987 if (IS_OSPF6_DEBUG_INTERFACE)
1988 zlog_debug("Interface %s: clear by reset", ifp->name);
1989
1990 /* Reset the interface */
1991 thread_add_event(master, interface_down, oi, 0, NULL);
1992 thread_add_event(master, interface_up, oi, 0, NULL);
1993 }
1994
1995 /* Clear interface */
1996 DEFUN (clear_ipv6_ospf6_interface,
1997 clear_ipv6_ospf6_interface_cmd,
1998 "clear ipv6 ospf6 interface [IFNAME]",
1999 CLEAR_STR
2000 IP6_STR
2001 OSPF6_STR
2002 INTERFACE_STR
2003 IFNAME_STR
2004 )
2005 {
2006 struct vrf *vrf = vrf_lookup_by_id(VRF_DEFAULT);
2007 int idx_ifname = 4;
2008 struct interface *ifp;
2009
2010 if (argc == 4) /* Clear all the ospfv3 interfaces. */
2011 {
2012 FOR_ALL_INTERFACES (vrf, ifp)
2013 ospf6_interface_clear(vty, ifp);
2014 } else /* Interface name is specified. */
2015 {
2016 if ((ifp = if_lookup_by_name(argv[idx_ifname]->arg,
2017 VRF_DEFAULT))
2018 == NULL) {
2019 vty_out(vty, "No such Interface: %s\n",
2020 argv[idx_ifname]->arg);
2021 return CMD_WARNING;
2022 }
2023 ospf6_interface_clear(vty, ifp);
2024 }
2025
2026 return CMD_SUCCESS;
2027 }
2028
2029 void install_element_ospf6_clear_interface(void)
2030 {
2031 install_element(ENABLE_NODE, &clear_ipv6_ospf6_interface_cmd);
2032 }
2033
2034 DEFUN (debug_ospf6_interface,
2035 debug_ospf6_interface_cmd,
2036 "debug ospf6 interface",
2037 DEBUG_STR
2038 OSPF6_STR
2039 "Debug OSPFv3 Interface\n"
2040 )
2041 {
2042 OSPF6_DEBUG_INTERFACE_ON();
2043 return CMD_SUCCESS;
2044 }
2045
2046 DEFUN (no_debug_ospf6_interface,
2047 no_debug_ospf6_interface_cmd,
2048 "no debug ospf6 interface",
2049 NO_STR
2050 DEBUG_STR
2051 OSPF6_STR
2052 "Debug OSPFv3 Interface\n"
2053 )
2054 {
2055 OSPF6_DEBUG_INTERFACE_OFF();
2056 return CMD_SUCCESS;
2057 }
2058
2059 int config_write_ospf6_debug_interface(struct vty *vty)
2060 {
2061 if (IS_OSPF6_DEBUG_INTERFACE)
2062 vty_out(vty, "debug ospf6 interface\n");
2063 return 0;
2064 }
2065
2066 void install_element_ospf6_debug_interface(void)
2067 {
2068 install_element(ENABLE_NODE, &debug_ospf6_interface_cmd);
2069 install_element(ENABLE_NODE, &no_debug_ospf6_interface_cmd);
2070 install_element(CONFIG_NODE, &debug_ospf6_interface_cmd);
2071 install_element(CONFIG_NODE, &no_debug_ospf6_interface_cmd);
2072 }
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