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718e3744 | 1 | /* |
2 | * OSPF Interface functions. | |
3 | * Copyright (C) 1999, 2000 Toshiaki Takada | |
4 | * | |
5 | * This file is part of GNU Zebra. | |
6 | * | |
7 | * GNU Zebra is free software; you can redistribute it and/or modify | |
8 | * it under the terms of the GNU General Public License as published | |
9 | * by the Free Software Foundation; either version 2, or (at your | |
10 | * option) any later version. | |
11 | * | |
12 | * GNU Zebra is distributed in the hope that it will be useful, but | |
13 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
15 | * General Public License for more details. | |
16 | * | |
17 | * You should have received a copy of the GNU General Public License | |
18 | * along with GNU Zebra; see the file COPYING. If not, write to the | |
19 | * Free Software Foundation, Inc., 59 Temple Place - Suite 330, | |
20 | * Boston, MA 02111-1307, USA. | |
21 | */ | |
22 | ||
23 | #include <zebra.h> | |
24 | ||
25 | #include "thread.h" | |
26 | #include "linklist.h" | |
27 | #include "prefix.h" | |
28 | #include "if.h" | |
29 | #include "table.h" | |
30 | #include "memory.h" | |
31 | #include "command.h" | |
32 | #include "stream.h" | |
33 | #include "log.h" | |
34 | ||
68980084 | 35 | #include "ospfd/ospfd.h" |
718e3744 | 36 | #include "ospfd/ospf_spf.h" |
37 | #include "ospfd/ospf_interface.h" | |
38 | #include "ospfd/ospf_ism.h" | |
39 | #include "ospfd/ospf_asbr.h" | |
40 | #include "ospfd/ospf_lsa.h" | |
41 | #include "ospfd/ospf_lsdb.h" | |
42 | #include "ospfd/ospf_neighbor.h" | |
43 | #include "ospfd/ospf_nsm.h" | |
44 | #include "ospfd/ospf_packet.h" | |
45 | #include "ospfd/ospf_abr.h" | |
718e3744 | 46 | #include "ospfd/ospf_network.h" |
47 | #include "ospfd/ospf_dump.h" | |
48 | #ifdef HAVE_SNMP | |
49 | #include "ospfd/ospf_snmp.h" | |
50 | #endif /* HAVE_SNMP */ | |
51 | ||
52 | \f | |
53 | int | |
54 | ospf_if_get_output_cost (struct ospf_interface *oi) | |
55 | { | |
56 | /* If all else fails, use default OSPF cost */ | |
57 | u_int32_t cost; | |
58 | u_int32_t bw, refbw; | |
59 | ||
60 | bw = oi->ifp->bandwidth ? oi->ifp->bandwidth : OSPF_DEFAULT_BANDWIDTH; | |
68980084 | 61 | refbw = oi->ospf->ref_bandwidth; |
718e3744 | 62 | |
63 | /* A specifed ip ospf cost overrides a calculated one. */ | |
64 | if (OSPF_IF_PARAM_CONFIGURED (IF_DEF_PARAMS (oi->ifp), output_cost_cmd) || | |
65 | OSPF_IF_PARAM_CONFIGURED (oi->params, output_cost_cmd)) | |
66 | cost = OSPF_IF_PARAM (oi, output_cost_cmd); | |
67 | /* See if a cost can be calculated from the zebra processes | |
68 | interface bandwidth field. */ | |
69 | else | |
70 | { | |
71 | cost = (u_int32_t) ((double)refbw / (double)bw + (double)0.5); | |
72 | if (cost < 1) | |
73 | cost = 1; | |
74 | else if (cost > 65535) | |
75 | cost = 65535; | |
76 | } | |
77 | ||
78 | return cost; | |
79 | } | |
80 | ||
81 | void | |
82 | ospf_if_recalculate_output_cost (struct interface *ifp) | |
83 | { | |
84 | u_int32_t newcost; | |
85 | struct route_node *rn; | |
86 | ||
87 | for (rn = route_top (IF_OIFS (ifp)); rn; rn = route_next (rn)) | |
88 | { | |
89 | struct ospf_interface *oi; | |
90 | ||
91 | if ( (oi = rn->info) == NULL) | |
92 | continue; | |
93 | ||
94 | newcost = ospf_if_get_output_cost (oi); | |
95 | ||
96 | /* Is actual output cost changed? */ | |
97 | if (oi->output_cost != newcost) | |
98 | { | |
99 | oi->output_cost = newcost; | |
100 | ospf_router_lsa_timer_add (oi->area); | |
101 | } | |
102 | } | |
103 | } | |
104 | ||
105 | void | |
106 | ospf_if_reset_variables (struct ospf_interface *oi) | |
107 | { | |
108 | /* Set default values. */ | |
109 | /* don't clear this flag. oi->flag = OSPF_IF_DISABLE; */ | |
110 | ||
111 | if (oi->vl_data) | |
112 | oi->type = OSPF_IFTYPE_VIRTUALLINK; | |
113 | else | |
114 | /* preserve network-type */ | |
115 | if (oi->type != OSPF_IFTYPE_NBMA) | |
116 | oi->type = OSPF_IFTYPE_BROADCAST; | |
117 | ||
118 | oi->state = ISM_Down; | |
119 | ||
120 | oi->crypt_seqnum = 0; | |
121 | ||
122 | /* This must be short, (less than RxmtInterval) | |
123 | - RFC 2328 Section 13.5 para 3. Set to 1 second to avoid Acks being | |
124 | held back for too long - MAG */ | |
125 | oi->v_ls_ack = 1; | |
126 | } | |
127 | ||
20916fba | 128 | /* lookup oi for specified prefix/ifp */ |
129 | struct ospf_interface * | |
130 | ospf_if_table_lookup (struct interface *ifp, struct prefix *prefix) | |
131 | { | |
132 | struct prefix p; | |
affe1d9c | 133 | struct route_node *rn; |
b5f2c126 | 134 | struct ospf_interface *rninfo; |
20916fba | 135 | |
136 | p = *prefix; | |
137 | ||
affe1d9c | 138 | rn = route_node_get (IF_OIFS (ifp), &p); |
20916fba | 139 | /* route_node_get implicitely locks */ |
b5f2c126 | 140 | rninfo = (struct ospf_interface *) rn->info; |
affe1d9c | 141 | route_unlock_node (rn); |
b5f2c126 | 142 | return rninfo; |
20916fba | 143 | } |
144 | ||
718e3744 | 145 | void |
146 | ospf_add_to_if (struct interface *ifp, struct ospf_interface *oi) | |
147 | { | |
148 | struct route_node *rn; | |
149 | struct prefix p; | |
150 | ||
151 | p = *oi->address; | |
152 | p.prefixlen = IPV4_MAX_PREFIXLEN; | |
153 | ||
154 | rn = route_node_get (IF_OIFS (ifp), &p); | |
8c80cb7e | 155 | /* rn->info should either be NULL or equal to this oi |
156 | * as route_node_get may return an existing node | |
157 | */ | |
20916fba | 158 | assert (!rn->info || rn->info == oi); |
718e3744 | 159 | rn->info = oi; |
160 | } | |
161 | ||
162 | void | |
163 | ospf_delete_from_if (struct interface *ifp, struct ospf_interface *oi) | |
164 | { | |
165 | struct route_node *rn; | |
166 | struct prefix p; | |
167 | ||
168 | p = *oi->address; | |
169 | p.prefixlen = IPV4_MAX_PREFIXLEN; | |
170 | ||
171 | rn = route_node_lookup (IF_OIFS (oi->ifp), &p); | |
172 | assert (rn); | |
173 | assert (rn->info); | |
174 | rn->info = NULL; | |
175 | route_unlock_node (rn); | |
176 | route_unlock_node (rn); | |
177 | } | |
178 | ||
179 | struct ospf_interface * | |
68980084 | 180 | ospf_if_new (struct ospf *ospf, struct interface *ifp, struct prefix *p) |
718e3744 | 181 | { |
182 | struct ospf_interface *oi; | |
183 | ||
20916fba | 184 | if ((oi = ospf_if_table_lookup (ifp, p)) == NULL) |
185 | { | |
186 | oi = XCALLOC (MTYPE_OSPF_IF, sizeof (struct ospf_interface)); | |
187 | memset (oi, 0, sizeof (struct ospf_interface)); | |
188 | } | |
189 | else | |
190 | return oi; | |
191 | ||
718e3744 | 192 | /* Set zebra interface pointer. */ |
193 | oi->ifp = ifp; | |
194 | oi->address = p; | |
195 | ||
196 | ospf_add_to_if (ifp, oi); | |
68980084 | 197 | listnode_add (ospf->oiflist, oi); |
718e3744 | 198 | |
199 | /* Clear self-originated network-LSA. */ | |
200 | oi->network_lsa_self = NULL; | |
201 | ||
202 | /* Initialize neighbor list. */ | |
203 | oi->nbrs = route_table_init (); | |
204 | ||
205 | /* Initialize static neighbor list. */ | |
206 | oi->nbr_nbma = list_new (); | |
207 | ||
208 | /* Initialize Link State Acknowledgment list. */ | |
209 | oi->ls_ack = list_new (); | |
210 | oi->ls_ack_direct.ls_ack = list_new (); | |
211 | ||
212 | /* Set default values. */ | |
213 | ospf_if_reset_variables (oi); | |
214 | ||
215 | /* Add pseudo neighbor. */ | |
216 | oi->nbr_self = ospf_nbr_new (oi); | |
217 | oi->nbr_self->state = NSM_TwoWay; | |
718e3744 | 218 | oi->nbr_self->priority = OSPF_IF_PARAM (oi, priority); |
219 | oi->nbr_self->options = OSPF_OPTION_E; | |
220 | ||
221 | oi->ls_upd_queue = route_table_init (); | |
222 | oi->t_ls_upd_event = NULL; | |
223 | oi->t_ls_ack_direct = NULL; | |
224 | ||
68980084 | 225 | oi->crypt_seqnum = time (NULL); |
226 | ||
718e3744 | 227 | #ifdef HAVE_OPAQUE_LSA |
228 | ospf_opaque_type9_lsa_init (oi); | |
229 | #endif /* HAVE_OPAQUE_LSA */ | |
230 | ||
68980084 | 231 | oi->ospf = ospf; |
718e3744 | 232 | |
233 | return oi; | |
234 | } | |
235 | ||
236 | /* Restore an interface to its pre UP state | |
237 | Used from ism_interface_down only */ | |
238 | void | |
239 | ospf_if_cleanup (struct ospf_interface *oi) | |
240 | { | |
241 | struct route_node *rn; | |
52dc7ee6 | 242 | struct listnode *node; |
718e3744 | 243 | struct ospf_neighbor *nbr; |
244 | ||
245 | /* oi->nbrs and oi->nbr_nbma should be deletete on InterafceDown event */ | |
246 | /* delete all static neighbors attached to this interface */ | |
247 | for (node = listhead (oi->nbr_nbma); node; ) | |
248 | { | |
249 | struct ospf_nbr_nbma *nbr_nbma = getdata (node); | |
250 | nextnode (node); | |
251 | ||
252 | OSPF_POLL_TIMER_OFF (nbr_nbma->t_poll); | |
253 | ||
254 | if (nbr_nbma->nbr) | |
255 | { | |
256 | nbr_nbma->nbr->nbr_nbma = NULL; | |
257 | nbr_nbma->nbr = NULL; | |
258 | } | |
259 | ||
260 | nbr_nbma->oi = NULL; | |
261 | ||
262 | listnode_delete (oi->nbr_nbma, nbr_nbma); | |
263 | } | |
264 | ||
265 | /* send Neighbor event KillNbr to all associated neighbors. */ | |
266 | for (rn = route_top (oi->nbrs); rn; rn = route_next (rn)) | |
267 | if ((nbr = rn->info) != NULL) | |
268 | if (nbr != oi->nbr_self) | |
269 | OSPF_NSM_EVENT_EXECUTE (nbr, NSM_KillNbr); | |
270 | ||
271 | /* Cleanup Link State Acknowlegdment list. */ | |
272 | for (node = listhead (oi->ls_ack); node; nextnode (node)) | |
273 | ospf_lsa_unlock (node->data); | |
274 | list_delete_all_node (oi->ls_ack); | |
275 | ||
276 | oi->crypt_seqnum = 0; | |
277 | ||
278 | /* Empty link state update queue */ | |
279 | ospf_ls_upd_queue_empty (oi); | |
280 | ||
281 | /* Handle pseudo neighbor. */ | |
282 | ospf_nbr_delete (oi->nbr_self); | |
283 | oi->nbr_self = ospf_nbr_new (oi); | |
284 | oi->nbr_self->state = NSM_TwoWay; | |
285 | oi->nbr_self->priority = OSPF_IF_PARAM (oi, priority); | |
f2c80652 | 286 | |
287 | switch (oi->area->external_routing) | |
288 | { | |
289 | case OSPF_AREA_DEFAULT: | |
290 | SET_FLAG (oi->nbr_self->options, OSPF_OPTION_E); | |
291 | break; | |
292 | case OSPF_AREA_STUB: | |
293 | UNSET_FLAG (oi->nbr_self->options, OSPF_OPTION_E); | |
294 | break; | |
f2c80652 | 295 | case OSPF_AREA_NSSA: |
296 | UNSET_FLAG (oi->nbr_self->options, OSPF_OPTION_E); | |
297 | SET_FLAG (oi->nbr_self->options, OSPF_OPTION_NP); | |
298 | break; | |
f2c80652 | 299 | } |
718e3744 | 300 | |
301 | ospf_lsa_unlock (oi->network_lsa_self); | |
302 | oi->network_lsa_self = NULL; | |
303 | OSPF_TIMER_OFF (oi->t_network_lsa_self); | |
304 | } | |
305 | ||
306 | void | |
307 | ospf_if_free (struct ospf_interface *oi) | |
308 | { | |
309 | ospf_if_down (oi); | |
310 | ||
311 | assert (oi->state == ISM_Down); | |
312 | ||
313 | #ifdef HAVE_OPAQUE_LSA | |
314 | ospf_opaque_type9_lsa_term (oi); | |
315 | #endif /* HAVE_OPAQUE_LSA */ | |
316 | ||
317 | /* Free Pseudo Neighbour */ | |
318 | ospf_nbr_delete (oi->nbr_self); | |
319 | ||
320 | route_table_finish (oi->nbrs); | |
321 | route_table_finish (oi->ls_upd_queue); | |
322 | ||
323 | /* Free any lists that should be freed */ | |
324 | list_free (oi->nbr_nbma); | |
325 | ||
326 | list_free (oi->ls_ack); | |
327 | list_free (oi->ls_ack_direct.ls_ack); | |
328 | ||
329 | ospf_delete_from_if (oi->ifp, oi); | |
330 | ||
68980084 | 331 | listnode_delete (oi->ospf->oiflist, oi); |
718e3744 | 332 | listnode_delete (oi->area->oiflist, oi); |
333 | ||
334 | memset (oi, 0, sizeof (*oi)); | |
335 | XFREE (MTYPE_OSPF_IF, oi); | |
336 | } | |
337 | ||
338 | \f | |
339 | /* | |
340 | * check if interface with given address is configured and | |
3fb9cd6e | 341 | * return it if yes. special treatment for PtP networks. |
718e3744 | 342 | */ |
343 | struct ospf_interface * | |
68980084 | 344 | ospf_if_is_configured (struct ospf *ospf, struct in_addr *address) |
718e3744 | 345 | { |
52dc7ee6 | 346 | struct listnode *node; |
718e3744 | 347 | struct ospf_interface *oi; |
3fb9cd6e | 348 | struct prefix_ipv4 addr; |
349 | ||
350 | addr.family = AF_INET; | |
351 | addr.prefix = *address; | |
352 | addr.prefixlen = IPV4_MAX_PREFIXLEN; | |
718e3744 | 353 | |
68980084 | 354 | for (node = listhead (ospf->oiflist); node; nextnode (node)) |
718e3744 | 355 | if ((oi = getdata (node)) != NULL && oi->type != OSPF_IFTYPE_VIRTUALLINK) |
356 | { | |
357 | if (oi->type == OSPF_IFTYPE_POINTOPOINT) | |
3fb9cd6e | 358 | { |
359 | if (CONNECTED_DEST_HOST(oi->connected)) | |
360 | { | |
361 | /* match only destination addr, since local addr is most likely | |
362 | * not unique (borrowed from another interface) */ | |
363 | if (IPV4_ADDR_SAME (address, | |
364 | &oi->connected->destination->u.prefix4)) | |
365 | return oi; | |
366 | } | |
367 | else | |
368 | { | |
369 | /* special leniency: match if addr is anywhere on PtP subnet */ | |
370 | if (prefix_match(oi->address,(struct prefix *)&addr)) | |
371 | return oi; | |
372 | } | |
373 | } | |
718e3744 | 374 | else |
3fb9cd6e | 375 | { |
376 | if (IPV4_ADDR_SAME (address, &oi->address->u.prefix4)) | |
377 | return oi; | |
378 | } | |
718e3744 | 379 | } |
718e3744 | 380 | return NULL; |
381 | } | |
382 | ||
383 | int | |
384 | ospf_if_is_up (struct ospf_interface *oi) | |
385 | { | |
386 | return if_is_up (oi->ifp); | |
387 | } | |
388 | ||
2db3d05d | 389 | struct ospf_interface * |
390 | ospf_if_exists (struct ospf_interface *oic) | |
391 | { | |
52dc7ee6 | 392 | struct listnode *node; |
2db3d05d | 393 | struct ospf *ospf; |
394 | struct ospf_interface *oi; | |
395 | ||
396 | ospf = ospf_lookup (); | |
397 | ||
398 | for (node = listhead (ospf->oiflist); node; nextnode (node)) | |
399 | { | |
400 | if (((oi = getdata (node)) != NULL) && (oi == oic)) | |
401 | return oi; | |
402 | } | |
403 | return NULL; | |
404 | } | |
405 | ||
718e3744 | 406 | struct ospf_interface * |
68980084 | 407 | ospf_if_lookup_by_local_addr (struct ospf *ospf, |
408 | struct interface *ifp, struct in_addr address) | |
718e3744 | 409 | { |
52dc7ee6 | 410 | struct listnode *node; |
718e3744 | 411 | struct ospf_interface *oi; |
412 | ||
68980084 | 413 | for (node = listhead (ospf->oiflist); node; nextnode (node)) |
718e3744 | 414 | if ((oi = getdata (node)) != NULL && oi->type != OSPF_IFTYPE_VIRTUALLINK) |
415 | { | |
416 | if (ifp && oi->ifp != ifp) | |
417 | continue; | |
418 | ||
419 | if (IPV4_ADDR_SAME (&address, &oi->address->u.prefix4)) | |
420 | return oi; | |
421 | } | |
422 | ||
423 | return NULL; | |
424 | } | |
425 | ||
426 | struct ospf_interface * | |
68980084 | 427 | ospf_if_lookup_by_prefix (struct ospf *ospf, struct prefix_ipv4 *p) |
718e3744 | 428 | { |
52dc7ee6 | 429 | struct listnode *node; |
718e3744 | 430 | struct ospf_interface *oi; |
431 | struct prefix ptmp; | |
432 | ||
433 | /* Check each Interface. */ | |
68980084 | 434 | for (node = listhead (ospf->oiflist); node; nextnode (node)) |
435 | { | |
436 | if ((oi = getdata (node)) != NULL && oi->type != OSPF_IFTYPE_VIRTUALLINK) | |
437 | { | |
3fb9cd6e | 438 | if ((oi->type == OSPF_IFTYPE_POINTOPOINT) && |
439 | CONNECTED_DEST_HOST(oi->connected)) | |
68980084 | 440 | { |
441 | prefix_copy (&ptmp, oi->connected->destination); | |
442 | ptmp.prefixlen = IPV4_MAX_BITLEN; | |
443 | } | |
444 | else | |
445 | prefix_copy (&ptmp, oi->address); | |
718e3744 | 446 | |
68980084 | 447 | apply_mask (&ptmp); |
448 | if (prefix_same (&ptmp, (struct prefix *) p)) | |
449 | return oi; | |
450 | } | |
451 | } | |
718e3744 | 452 | return NULL; |
453 | } | |
454 | ||
455 | /* determine receiving interface by source of packet */ | |
456 | struct ospf_interface * | |
68980084 | 457 | ospf_if_lookup_recv_if (struct ospf *ospf, struct in_addr src) |
718e3744 | 458 | { |
52dc7ee6 | 459 | struct listnode *node; |
718e3744 | 460 | struct prefix_ipv4 addr; |
461 | struct ospf_interface *oi, *match; | |
462 | ||
463 | addr.family = AF_INET; | |
464 | addr.prefix = src; | |
465 | addr.prefixlen = IPV4_MAX_BITLEN; | |
466 | ||
467 | match = NULL; | |
468 | ||
68980084 | 469 | for (node = listhead (ospf->oiflist); node; nextnode (node)) |
718e3744 | 470 | { |
471 | oi = getdata (node); | |
472 | ||
473 | if (oi->type == OSPF_IFTYPE_VIRTUALLINK) | |
474 | continue; | |
475 | ||
3fb9cd6e | 476 | if ((oi->type == OSPF_IFTYPE_POINTOPOINT) && |
477 | CONNECTED_DEST_HOST(oi->connected)) | |
718e3744 | 478 | { |
479 | if (IPV4_ADDR_SAME (&oi->connected->destination->u.prefix4, &src)) | |
480 | return oi; | |
481 | } | |
482 | else | |
483 | { | |
484 | if (prefix_match (oi->address, (struct prefix *) &addr)) | |
0a825c79 | 485 | { |
af8d0336 | 486 | if ( (match == NULL) || |
487 | (match->address->prefixlen < oi->address->prefixlen) | |
488 | ) | |
0a825c79 | 489 | match = oi; |
490 | } | |
718e3744 | 491 | } |
492 | } | |
493 | ||
494 | return match; | |
495 | } | |
496 | \f | |
497 | void | |
498 | ospf_if_stream_set (struct ospf_interface *oi) | |
499 | { | |
500 | /* set output fifo queue. */ | |
501 | if (oi->obuf == NULL) | |
502 | oi->obuf = ospf_fifo_new (); | |
503 | } | |
504 | ||
505 | void | |
506 | ospf_if_stream_unset (struct ospf_interface *oi) | |
507 | { | |
68980084 | 508 | struct ospf *ospf = oi->ospf; |
509 | ||
718e3744 | 510 | if (oi->obuf) |
511 | { | |
512 | ospf_fifo_free (oi->obuf); | |
513 | oi->obuf = NULL; | |
514 | ||
515 | if (oi->on_write_q) | |
516 | { | |
68980084 | 517 | listnode_delete (ospf->oi_write_q, oi); |
518 | if (list_isempty(ospf->oi_write_q)) | |
519 | OSPF_TIMER_OFF (ospf->t_write); | |
718e3744 | 520 | oi->on_write_q = 0; |
521 | } | |
522 | } | |
523 | } | |
68980084 | 524 | |
718e3744 | 525 | \f |
526 | struct ospf_if_params * | |
527 | ospf_new_if_params () | |
528 | { | |
529 | struct ospf_if_params *oip; | |
530 | ||
531 | oip = XMALLOC (MTYPE_OSPF_IF_PARAMS, sizeof (struct ospf_if_params)); | |
718e3744 | 532 | |
533 | if (!oip) | |
534 | return NULL; | |
535 | ||
f645789b | 536 | memset (oip, 0, sizeof (struct ospf_if_params)); |
537 | ||
718e3744 | 538 | UNSET_IF_PARAM (oip, output_cost_cmd); |
539 | UNSET_IF_PARAM (oip, transmit_delay); | |
540 | UNSET_IF_PARAM (oip, retransmit_interval); | |
541 | UNSET_IF_PARAM (oip, passive_interface); | |
542 | UNSET_IF_PARAM (oip, v_hello); | |
543 | UNSET_IF_PARAM (oip, v_wait); | |
544 | UNSET_IF_PARAM (oip, priority); | |
545 | UNSET_IF_PARAM (oip, type); | |
546 | UNSET_IF_PARAM (oip, auth_simple); | |
547 | UNSET_IF_PARAM (oip, auth_crypt); | |
548 | UNSET_IF_PARAM (oip, auth_type); | |
ec1ca63c | 549 | |
550 | oip->auth_crypt = list_new (); | |
718e3744 | 551 | |
718e3744 | 552 | return oip; |
553 | } | |
554 | ||
555 | void | |
556 | ospf_del_if_params (struct ospf_if_params *oip) | |
557 | { | |
558 | list_delete (oip->auth_crypt); | |
559 | XFREE (MTYPE_OSPF_IF_PARAMS, oip); | |
560 | } | |
561 | ||
562 | void | |
563 | ospf_free_if_params (struct interface *ifp, struct in_addr addr) | |
564 | { | |
565 | struct ospf_if_params *oip; | |
566 | struct prefix_ipv4 p; | |
567 | struct route_node *rn; | |
630e4807 | 568 | |
569 | p.family = AF_INET; | |
718e3744 | 570 | p.prefixlen = IPV4_MAX_PREFIXLEN; |
571 | p.prefix = addr; | |
572 | rn = route_node_lookup (IF_OIFS_PARAMS (ifp), (struct prefix*)&p); | |
573 | if (!rn || !rn->info) | |
574 | return; | |
575 | ||
576 | oip = rn->info; | |
577 | route_unlock_node (rn); | |
578 | ||
579 | if (!OSPF_IF_PARAM_CONFIGURED (oip, output_cost_cmd) && | |
580 | !OSPF_IF_PARAM_CONFIGURED (oip, transmit_delay) && | |
581 | !OSPF_IF_PARAM_CONFIGURED (oip, retransmit_interval) && | |
582 | !OSPF_IF_PARAM_CONFIGURED (oip, passive_interface) && | |
583 | !OSPF_IF_PARAM_CONFIGURED (oip, v_hello) && | |
584 | !OSPF_IF_PARAM_CONFIGURED (oip, v_wait) && | |
585 | !OSPF_IF_PARAM_CONFIGURED (oip, priority) && | |
586 | !OSPF_IF_PARAM_CONFIGURED (oip, type) && | |
587 | !OSPF_IF_PARAM_CONFIGURED (oip, auth_simple) && | |
588 | !OSPF_IF_PARAM_CONFIGURED (oip, auth_type) && | |
589 | listcount (oip->auth_crypt) == 0) | |
590 | { | |
591 | ospf_del_if_params (oip); | |
592 | rn->info = NULL; | |
593 | route_unlock_node (rn); | |
594 | } | |
595 | } | |
596 | ||
597 | struct ospf_if_params * | |
598 | ospf_lookup_if_params (struct interface *ifp, struct in_addr addr) | |
599 | { | |
600 | struct prefix_ipv4 p; | |
601 | struct route_node *rn; | |
602 | ||
630e4807 | 603 | p.family = AF_INET; |
718e3744 | 604 | p.prefixlen = IPV4_MAX_PREFIXLEN; |
605 | p.prefix = addr; | |
606 | ||
607 | rn = route_node_lookup (IF_OIFS_PARAMS (ifp), (struct prefix*)&p); | |
608 | ||
609 | if (rn) | |
610 | { | |
611 | route_unlock_node (rn); | |
612 | return rn->info; | |
613 | } | |
614 | ||
615 | return NULL; | |
616 | } | |
617 | ||
618 | struct ospf_if_params * | |
619 | ospf_get_if_params (struct interface *ifp, struct in_addr addr) | |
620 | { | |
621 | struct prefix_ipv4 p; | |
622 | struct route_node *rn; | |
623 | ||
624 | p.family = AF_INET; | |
625 | p.prefixlen = IPV4_MAX_PREFIXLEN; | |
626 | p.prefix = addr; | |
627 | ||
628 | rn = route_node_get (IF_OIFS_PARAMS (ifp), (struct prefix*)&p); | |
629 | ||
630 | if (rn->info == NULL) | |
631 | rn->info = ospf_new_if_params (); | |
632 | else | |
633 | route_unlock_node (rn); | |
634 | ||
635 | return rn->info; | |
636 | } | |
637 | ||
638 | void | |
639 | ospf_if_update_params (struct interface *ifp, struct in_addr addr) | |
640 | { | |
641 | struct route_node *rn; | |
642 | struct ospf_interface *oi; | |
643 | ||
644 | for (rn = route_top (IF_OIFS (ifp)); rn; rn = route_next (rn)) | |
645 | { | |
646 | if ((oi = rn->info) == NULL) | |
647 | continue; | |
648 | ||
649 | if (IPV4_ADDR_SAME (&oi->address->u.prefix4, &addr)) | |
650 | oi->params = ospf_lookup_if_params (ifp, oi->address->u.prefix4); | |
651 | } | |
652 | } | |
653 | ||
654 | int | |
655 | ospf_if_new_hook (struct interface *ifp) | |
656 | { | |
657 | int rc = 0; | |
658 | ||
659 | ifp->info = XMALLOC (MTYPE_OSPF_IF_INFO, sizeof (struct ospf_if_info)); | |
660 | memset (ifp->info, 0, sizeof (struct ospf_if_info)); | |
661 | ||
662 | IF_OIFS (ifp) = route_table_init (); | |
663 | IF_OIFS_PARAMS (ifp) = route_table_init (); | |
664 | ||
665 | IF_DEF_PARAMS (ifp) = ospf_new_if_params (); | |
666 | ||
667 | SET_IF_PARAM (IF_DEF_PARAMS (ifp), transmit_delay); | |
668 | IF_DEF_PARAMS (ifp)->transmit_delay = OSPF_TRANSMIT_DELAY_DEFAULT; | |
669 | ||
670 | SET_IF_PARAM (IF_DEF_PARAMS (ifp), retransmit_interval); | |
671 | IF_DEF_PARAMS (ifp)->retransmit_interval = OSPF_RETRANSMIT_INTERVAL_DEFAULT; | |
672 | ||
673 | SET_IF_PARAM (IF_DEF_PARAMS (ifp), priority); | |
674 | IF_DEF_PARAMS (ifp)->priority = OSPF_ROUTER_PRIORITY_DEFAULT; | |
675 | ||
676 | SET_IF_PARAM (IF_DEF_PARAMS (ifp), passive_interface); | |
677 | IF_DEF_PARAMS (ifp)->passive_interface = OSPF_IF_ACTIVE; | |
678 | ||
679 | SET_IF_PARAM (IF_DEF_PARAMS (ifp), v_hello); | |
680 | IF_DEF_PARAMS (ifp)->v_hello = OSPF_HELLO_INTERVAL_DEFAULT; | |
681 | ||
682 | SET_IF_PARAM (IF_DEF_PARAMS (ifp), v_wait); | |
683 | IF_DEF_PARAMS (ifp)->v_wait = OSPF_ROUTER_DEAD_INTERVAL_DEFAULT; | |
684 | ||
685 | SET_IF_PARAM (IF_DEF_PARAMS (ifp), auth_simple); | |
686 | memset (IF_DEF_PARAMS (ifp)->auth_simple, 0, OSPF_AUTH_SIMPLE_SIZE); | |
687 | ||
718e3744 | 688 | SET_IF_PARAM (IF_DEF_PARAMS (ifp), auth_type); |
689 | IF_DEF_PARAMS (ifp)->auth_type = OSPF_AUTH_NOTSET; | |
690 | ||
691 | #ifdef HAVE_OPAQUE_LSA | |
692 | rc = ospf_opaque_new_if (ifp); | |
693 | #endif /* HAVE_OPAQUE_LSA */ | |
694 | return rc; | |
695 | } | |
696 | ||
697 | int | |
698 | ospf_if_delete_hook (struct interface *ifp) | |
699 | { | |
700 | int rc = 0; | |
940b01aa | 701 | struct route_node *rn; |
718e3744 | 702 | #ifdef HAVE_OPAQUE_LSA |
703 | rc = ospf_opaque_del_if (ifp); | |
704 | #endif /* HAVE_OPAQUE_LSA */ | |
940b01aa | 705 | |
718e3744 | 706 | route_table_finish (IF_OIFS (ifp)); |
940b01aa | 707 | |
708 | for (rn = route_top (IF_OIFS_PARAMS (ifp)); rn; rn = route_next (rn)) | |
709 | if (rn->info) | |
710 | ospf_del_if_params (rn->info); | |
718e3744 | 711 | route_table_finish (IF_OIFS_PARAMS (ifp)); |
940b01aa | 712 | |
cfc959b8 | 713 | ospf_del_if_params ((struct ospf_if_params *) IF_DEF_PARAMS (ifp)); |
718e3744 | 714 | XFREE (MTYPE_OSPF_IF_INFO, ifp->info); |
715 | ifp->info = NULL; | |
716 | ||
717 | return rc; | |
718 | } | |
719 | ||
720 | int | |
721 | ospf_if_is_enable (struct ospf_interface *oi) | |
722 | { | |
723 | if (!if_is_loopback (oi->ifp)) | |
724 | if (if_is_up (oi->ifp)) | |
725 | return 1; | |
726 | ||
727 | return 0; | |
728 | } | |
729 | ||
730 | int | |
731 | ospf_if_up (struct ospf_interface *oi) | |
732 | { | |
733 | if (oi == NULL) | |
734 | return 0; | |
735 | ||
736 | if (oi->type == OSPF_IFTYPE_LOOPBACK) | |
737 | OSPF_ISM_EVENT_SCHEDULE (oi, ISM_LoopInd); | |
738 | else | |
739 | { | |
740 | if (oi->type != OSPF_IFTYPE_VIRTUALLINK) | |
68980084 | 741 | ospf_if_add_allspfrouters (oi->ospf, oi->address, oi->ifp->ifindex); |
718e3744 | 742 | ospf_if_stream_set (oi); |
743 | OSPF_ISM_EVENT_SCHEDULE (oi, ISM_InterfaceUp); | |
744 | } | |
745 | ||
746 | return 1; | |
747 | } | |
748 | ||
749 | int | |
750 | ospf_if_down (struct ospf_interface *oi) | |
751 | { | |
752 | if (oi == NULL) | |
753 | return 0; | |
754 | ||
755 | OSPF_ISM_EVENT_EXECUTE (oi, ISM_InterfaceDown); | |
756 | /* Shutdown packet reception and sending */ | |
757 | ospf_if_stream_unset (oi); | |
758 | if (oi->type != OSPF_IFTYPE_VIRTUALLINK) | |
68980084 | 759 | ospf_if_drop_allspfrouters (oi->ospf, oi->address, oi->ifp->ifindex); |
718e3744 | 760 | |
761 | ||
762 | return 1; | |
763 | } | |
764 | ||
765 | \f | |
766 | /* Virtual Link related functions. */ | |
767 | ||
768 | struct ospf_vl_data * | |
769 | ospf_vl_data_new (struct ospf_area *area, struct in_addr vl_peer) | |
770 | { | |
771 | struct ospf_vl_data *vl_data; | |
772 | ||
773 | vl_data = XMALLOC (MTYPE_OSPF_VL_DATA, sizeof (struct ospf_vl_data)); | |
774 | memset (vl_data, 0, sizeof (struct ospf_vl_data)); | |
775 | ||
776 | vl_data->vl_peer.s_addr = vl_peer.s_addr; | |
777 | vl_data->vl_area_id = area->area_id; | |
778 | vl_data->format = area->format; | |
779 | ||
780 | return vl_data; | |
781 | } | |
782 | ||
783 | void | |
784 | ospf_vl_data_free (struct ospf_vl_data *vl_data) | |
785 | { | |
786 | XFREE (MTYPE_OSPF_VL_DATA, vl_data); | |
787 | } | |
788 | ||
789 | u_int vlink_count = 0; | |
790 | ||
791 | struct ospf_interface * | |
68980084 | 792 | ospf_vl_new (struct ospf *ospf, struct ospf_vl_data *vl_data) |
718e3744 | 793 | { |
794 | struct ospf_interface * voi; | |
795 | struct interface * vi; | |
796 | char ifname[INTERFACE_NAMSIZ + 1]; | |
797 | struct ospf_area *area; | |
798 | struct in_addr area_id; | |
799 | struct connected *co; | |
800 | struct prefix_ipv4 *p; | |
801 | ||
802 | if (IS_DEBUG_OSPF_EVENT) | |
60925303 | 803 | zlog_debug ("ospf_vl_new(): Start"); |
718e3744 | 804 | if (vlink_count == OSPF_VL_MAX_COUNT) |
805 | { | |
806 | if (IS_DEBUG_OSPF_EVENT) | |
60925303 | 807 | zlog_debug ("ospf_vl_new(): Alarm: " |
718e3744 | 808 | "cannot create more than OSPF_MAX_VL_COUNT virtual links"); |
809 | return NULL; | |
810 | } | |
811 | ||
812 | if (IS_DEBUG_OSPF_EVENT) | |
60925303 | 813 | zlog_debug ("ospf_vl_new(): creating pseudo zebra interface"); |
718e3744 | 814 | |
106d2fd5 | 815 | snprintf (ifname, INTERFACE_NAMSIZ + 1, "VLINK%d", vlink_count); |
816 | vi = if_create (ifname, INTERFACE_NAMSIZ); | |
718e3744 | 817 | co = connected_new (); |
818 | co->ifp = vi; | |
819 | listnode_add (vi->connected, co); | |
820 | ||
821 | p = prefix_ipv4_new (); | |
822 | p->family = AF_INET; | |
823 | p->prefix.s_addr = 0; | |
824 | p->prefixlen = 0; | |
825 | ||
826 | co->address = (struct prefix *)p; | |
827 | ||
68980084 | 828 | voi = ospf_if_new (ospf, vi, co->address); |
718e3744 | 829 | if (voi == NULL) |
830 | { | |
831 | if (IS_DEBUG_OSPF_EVENT) | |
60925303 | 832 | zlog_debug ("ospf_vl_new(): Alarm: OSPF int structure is not created"); |
718e3744 | 833 | return NULL; |
834 | } | |
835 | voi->connected = co; | |
836 | voi->vl_data = vl_data; | |
837 | voi->ifp->mtu = OSPF_VL_MTU; | |
838 | voi->type = OSPF_IFTYPE_VIRTUALLINK; | |
839 | ||
106d2fd5 | 840 | vlink_count++; |
718e3744 | 841 | if (IS_DEBUG_OSPF_EVENT) |
60925303 | 842 | zlog_debug ("ospf_vl_new(): Created name: %s", ifname); |
718e3744 | 843 | if (IS_DEBUG_OSPF_EVENT) |
60925303 | 844 | zlog_debug ("ospf_vl_new(): set if->name to %s", vi->name); |
718e3744 | 845 | |
846 | area_id.s_addr = 0; | |
68980084 | 847 | area = ospf_area_get (ospf, area_id, OSPF_AREA_ID_FORMAT_ADDRESS); |
718e3744 | 848 | voi->area = area; |
849 | ||
850 | if (IS_DEBUG_OSPF_EVENT) | |
60925303 | 851 | zlog_debug ("ospf_vl_new(): set associated area to the backbone"); |
718e3744 | 852 | |
853 | ospf_area_add_if (voi->area, voi); | |
854 | ||
855 | ospf_if_stream_set (voi); | |
856 | ||
857 | if (IS_DEBUG_OSPF_EVENT) | |
60925303 | 858 | zlog_debug ("ospf_vl_new(): Stop"); |
718e3744 | 859 | return voi; |
860 | } | |
861 | ||
862 | void | |
863 | ospf_vl_if_delete (struct ospf_vl_data *vl_data) | |
864 | { | |
865 | struct interface *ifp = vl_data->vl_oi->ifp; | |
866 | vl_data->vl_oi->address->u.prefix4.s_addr = 0; | |
867 | vl_data->vl_oi->address->prefixlen = 0; | |
868 | ospf_if_free (vl_data->vl_oi); | |
869 | if_delete (ifp); | |
870 | vlink_count--; | |
871 | } | |
872 | ||
873 | struct ospf_vl_data * | |
874 | ospf_vl_lookup (struct ospf_area *area, struct in_addr vl_peer) | |
875 | { | |
876 | struct ospf_vl_data *vl_data; | |
52dc7ee6 | 877 | struct listnode *node; |
718e3744 | 878 | |
68980084 | 879 | for (node = listhead (area->ospf->vlinks); node; nextnode (node)) |
718e3744 | 880 | if ((vl_data = getdata (node)) != NULL) |
881 | if (vl_data->vl_peer.s_addr == vl_peer.s_addr && | |
882 | IPV4_ADDR_SAME (&vl_data->vl_area_id, &area->area_id)) | |
883 | return vl_data; | |
884 | ||
885 | return NULL; | |
886 | } | |
887 | ||
888 | void | |
889 | ospf_vl_shutdown (struct ospf_vl_data *vl_data) | |
890 | { | |
891 | struct ospf_interface *oi; | |
892 | ||
893 | if ((oi = vl_data->vl_oi) == NULL) | |
894 | return; | |
895 | ||
896 | oi->address->u.prefix4.s_addr = 0; | |
897 | oi->address->prefixlen = 0; | |
898 | ||
899 | UNSET_FLAG (oi->ifp->flags, IFF_UP); | |
900 | /* OSPF_ISM_EVENT_SCHEDULE (oi, ISM_InterfaceDown); */ | |
901 | OSPF_ISM_EVENT_EXECUTE (oi, ISM_InterfaceDown); | |
902 | } | |
903 | ||
904 | void | |
68980084 | 905 | ospf_vl_add (struct ospf *ospf, struct ospf_vl_data *vl_data) |
718e3744 | 906 | { |
68980084 | 907 | listnode_add (ospf->vlinks, vl_data); |
718e3744 | 908 | #ifdef HAVE_SNMP |
909 | ospf_snmp_vl_add (vl_data); | |
910 | #endif /* HAVE_SNMP */ | |
911 | } | |
912 | ||
913 | void | |
68980084 | 914 | ospf_vl_delete (struct ospf *ospf, struct ospf_vl_data *vl_data) |
718e3744 | 915 | { |
916 | ospf_vl_shutdown (vl_data); | |
917 | ospf_vl_if_delete (vl_data); | |
918 | ||
919 | #ifdef HAVE_SNMP | |
920 | ospf_snmp_vl_delete (vl_data); | |
921 | #endif /* HAVE_SNMP */ | |
68980084 | 922 | listnode_delete (ospf->vlinks, vl_data); |
718e3744 | 923 | |
924 | ospf_vl_data_free (vl_data); | |
925 | } | |
926 | ||
2e6b0bbb | 927 | int |
718e3744 | 928 | ospf_vl_set_params (struct ospf_vl_data *vl_data, struct vertex *v) |
929 | { | |
930 | int changed = 0; | |
931 | struct ospf_interface *voi; | |
52dc7ee6 | 932 | struct listnode *node; |
718e3744 | 933 | struct vertex_nexthop *nh; |
934 | int i; | |
935 | struct router_lsa *rl; | |
936 | ||
937 | voi = vl_data->vl_oi; | |
938 | ||
939 | if (voi->output_cost != v->distance) | |
940 | { | |
cd59da68 | 941 | |
718e3744 | 942 | voi->output_cost = v->distance; |
943 | changed = 1; | |
944 | } | |
945 | ||
946 | for (node = listhead (v->nexthop); node; nextnode (node)) | |
947 | if ((nh = getdata (node)) != NULL) | |
948 | { | |
cd59da68 | 949 | vl_data->out_oi = (struct ospf_interface *) nh->oi; |
950 | ||
951 | if (!IPV4_ADDR_SAME(&voi->address->u.prefix4, | |
952 | &vl_data->out_oi->address->u.prefix4)) | |
953 | changed = 1; | |
954 | ||
955 | voi->address->u.prefix4 = vl_data->out_oi->address->u.prefix4; | |
956 | voi->address->prefixlen = vl_data->out_oi->address->prefixlen; | |
957 | ||
958 | break; /* We take the first interface. */ | |
718e3744 | 959 | } |
960 | ||
961 | rl = (struct router_lsa *)v->lsa; | |
d355bfa7 | 962 | |
963 | /* use SPF determined backlink index in struct vertex | |
964 | * for virtual link destination address | |
965 | */ | |
966 | if (v->backlink >= 0) | |
967 | { | |
968 | if (!IPV4_ADDR_SAME (&vl_data->peer_addr, | |
969 | &rl->link[v->backlink].link_data)) | |
970 | changed = 1; | |
971 | vl_data->peer_addr = rl->link[v->backlink].link_data; | |
972 | } | |
973 | else | |
718e3744 | 974 | { |
d355bfa7 | 975 | /* This is highly odd, there is no backlink index |
976 | * there should be due to the ospf_spf_has_link() check | |
977 | * in SPF. Lets warn and try pick a link anyway. | |
978 | */ | |
979 | zlog_warn ("ospf_vl_set_params: No backlink for %s!", | |
980 | vl_data->vl_oi->ifp->name); | |
981 | for (i = 0; i < ntohs (rl->links); i++) | |
2e6b0bbb | 982 | { |
d355bfa7 | 983 | switch (rl->link[i].type) |
984 | { | |
985 | case LSA_LINK_TYPE_VIRTUALLINK: | |
986 | if (IS_DEBUG_OSPF_EVENT) | |
60925303 | 987 | zlog_debug ("found back link through VL"); |
d355bfa7 | 988 | case LSA_LINK_TYPE_TRANSIT: |
989 | case LSA_LINK_TYPE_POINTOPOINT: | |
cd59da68 | 990 | if (!IPV4_ADDR_SAME (&vl_data->peer_addr, |
991 | &rl->link[i].link_data)) | |
992 | changed = 1; | |
d355bfa7 | 993 | vl_data->peer_addr = rl->link[i].link_data; |
994 | if (IS_DEBUG_OSPF_EVENT) | |
60925303 | 995 | zlog_debug ("ospf_vl_set_params: %s peer address is %s\n", |
d355bfa7 | 996 | vl_data->vl_oi->ifp->name, |
997 | inet_ntoa(vl_data->peer_addr)); | |
998 | return changed; | |
999 | } | |
2e6b0bbb | 1000 | } |
718e3744 | 1001 | } |
d355bfa7 | 1002 | |
1003 | if (IS_DEBUG_OSPF_EVENT) | |
60925303 | 1004 | zlog_debug ("ospf_vl_set_params: %s peer address is %s\n", |
d355bfa7 | 1005 | vl_data->vl_oi->ifp->name, |
1006 | inet_ntoa(vl_data->peer_addr)); | |
1007 | ||
2e6b0bbb | 1008 | return changed; |
718e3744 | 1009 | } |
1010 | ||
1011 | ||
1012 | void | |
68980084 | 1013 | ospf_vl_up_check (struct ospf_area *area, struct in_addr rid, |
718e3744 | 1014 | struct vertex *v) |
1015 | { | |
68980084 | 1016 | struct ospf *ospf = area->ospf; |
52dc7ee6 | 1017 | struct listnode *node; |
718e3744 | 1018 | struct ospf_vl_data *vl_data; |
1019 | struct ospf_interface *oi; | |
1020 | ||
1021 | if (IS_DEBUG_OSPF_EVENT) | |
1022 | { | |
60925303 | 1023 | zlog_debug ("ospf_vl_up_check(): Start"); |
1024 | zlog_debug ("ospf_vl_up_check(): Router ID is %s", inet_ntoa (rid)); | |
1025 | zlog_debug ("ospf_vl_up_check(): Area is %s", inet_ntoa (area->area_id)); | |
718e3744 | 1026 | } |
1027 | ||
68980084 | 1028 | for (node = listhead (ospf->vlinks); node; nextnode (node)) |
718e3744 | 1029 | { |
1030 | if ((vl_data = getdata (node)) == NULL) | |
1031 | continue; | |
1032 | ||
1033 | if (IS_DEBUG_OSPF_EVENT) | |
1034 | { | |
60925303 | 1035 | zlog_debug ("ospf_vl_up_check(): considering VL, name: %s", |
718e3744 | 1036 | vl_data->vl_oi->ifp->name); |
60925303 | 1037 | zlog_debug ("ospf_vl_up_check(): VL area: %s, peer ID: %s", |
718e3744 | 1038 | inet_ntoa (vl_data->vl_area_id), |
1039 | inet_ntoa (vl_data->vl_peer)); | |
1040 | } | |
1041 | ||
1042 | if (IPV4_ADDR_SAME (&vl_data->vl_peer, &rid) && | |
1043 | IPV4_ADDR_SAME (&vl_data->vl_area_id, &area->area_id)) | |
1044 | { | |
1045 | oi = vl_data->vl_oi; | |
1046 | SET_FLAG (vl_data->flags, OSPF_VL_FLAG_APPROVED); | |
1047 | ||
1048 | if (IS_DEBUG_OSPF_EVENT) | |
60925303 | 1049 | zlog_debug ("ospf_vl_up_check(): this VL matched"); |
718e3744 | 1050 | |
1051 | if (oi->state == ISM_Down) | |
1052 | { | |
1053 | if (IS_DEBUG_OSPF_EVENT) | |
60925303 | 1054 | zlog_debug ("ospf_vl_up_check(): VL is down, waking it up"); |
718e3744 | 1055 | SET_FLAG (oi->ifp->flags, IFF_UP); |
2e6b0bbb | 1056 | OSPF_ISM_EVENT_EXECUTE(oi,ISM_InterfaceUp); |
718e3744 | 1057 | } |
1058 | ||
2e6b0bbb | 1059 | if (ospf_vl_set_params (vl_data, v)) |
1060 | { | |
1061 | if (IS_DEBUG_OSPF (ism, ISM_EVENTS)) | |
60925303 | 1062 | zlog_debug ("ospf_vl_up_check: VL cost change," |
cd59da68 | 1063 | " scheduling router lsa refresh"); |
2e6b0bbb | 1064 | if(ospf->backbone) |
cd59da68 | 1065 | ospf_router_lsa_timer_add (ospf->backbone); |
2e6b0bbb | 1066 | else if (IS_DEBUG_OSPF (ism, ISM_EVENTS)) |
60925303 | 1067 | zlog_debug ("ospf_vl_up_check: VL cost change, no backbone!"); |
2e6b0bbb | 1068 | } |
718e3744 | 1069 | } |
1070 | } | |
1071 | } | |
1072 | ||
1073 | void | |
68980084 | 1074 | ospf_vl_unapprove (struct ospf *ospf) |
718e3744 | 1075 | { |
52dc7ee6 | 1076 | struct listnode *node; |
718e3744 | 1077 | struct ospf_vl_data *vl_data; |
1078 | ||
68980084 | 1079 | for (node = listhead (ospf->vlinks); node; nextnode (node)) |
718e3744 | 1080 | if ((vl_data = getdata (node)) != NULL) |
1081 | UNSET_FLAG (vl_data->flags, OSPF_VL_FLAG_APPROVED); | |
1082 | } | |
1083 | ||
1084 | void | |
68980084 | 1085 | ospf_vl_shut_unapproved (struct ospf *ospf) |
718e3744 | 1086 | { |
52dc7ee6 | 1087 | struct listnode *node; |
718e3744 | 1088 | struct ospf_vl_data *vl_data; |
1089 | ||
68980084 | 1090 | for (node = listhead (ospf->vlinks); node; nextnode (node)) |
718e3744 | 1091 | if ((vl_data = getdata (node)) != NULL) |
1092 | if (!CHECK_FLAG (vl_data->flags, OSPF_VL_FLAG_APPROVED)) | |
1093 | ospf_vl_shutdown (vl_data); | |
1094 | } | |
1095 | ||
1096 | int | |
1097 | ospf_full_virtual_nbrs (struct ospf_area *area) | |
1098 | { | |
1099 | if (IS_DEBUG_OSPF_EVENT) | |
1100 | { | |
60925303 | 1101 | zlog_debug ("counting fully adjacent virtual neighbors in area %s", |
718e3744 | 1102 | inet_ntoa (area->area_id)); |
60925303 | 1103 | zlog_debug ("there are %d of them", area->full_vls); |
718e3744 | 1104 | } |
1105 | ||
1106 | return area->full_vls; | |
1107 | } | |
1108 | ||
1109 | int | |
1110 | ospf_vls_in_area (struct ospf_area *area) | |
1111 | { | |
52dc7ee6 | 1112 | struct listnode *node; |
718e3744 | 1113 | struct ospf_vl_data *vl_data; |
1114 | int c = 0; | |
1115 | ||
68980084 | 1116 | for (node = listhead (area->ospf->vlinks); node; nextnode (node)) |
718e3744 | 1117 | if ((vl_data = getdata (node)) != NULL) |
1118 | if (IPV4_ADDR_SAME (&vl_data->vl_area_id, &area->area_id)) | |
1119 | c++; | |
1120 | ||
1121 | return c; | |
1122 | } | |
1123 | ||
1124 | \f | |
1125 | struct crypt_key * | |
1126 | ospf_crypt_key_new () | |
1127 | { | |
1128 | struct crypt_key *ck; | |
1129 | ||
1130 | ck = XMALLOC (MTYPE_OSPF_CRYPT_KEY, sizeof (struct crypt_key)); | |
1131 | memset (ck, 0, sizeof (struct crypt_key)); | |
1132 | ||
1133 | return ck; | |
1134 | } | |
1135 | ||
1136 | void | |
52dc7ee6 | 1137 | ospf_crypt_key_add (struct list *crypt, struct crypt_key *ck) |
718e3744 | 1138 | { |
1139 | listnode_add (crypt, ck); | |
1140 | } | |
1141 | ||
1142 | struct crypt_key * | |
52dc7ee6 | 1143 | ospf_crypt_key_lookup (struct list *auth_crypt, u_char key_id) |
718e3744 | 1144 | { |
52dc7ee6 | 1145 | struct listnode *node; |
718e3744 | 1146 | struct crypt_key *ck; |
1147 | ||
1148 | for (node = listhead (auth_crypt); node; nextnode (node)) | |
1149 | { | |
1150 | ck = getdata (node); | |
1151 | if (ck->key_id == key_id) | |
1152 | return ck; | |
1153 | } | |
1154 | ||
1155 | return NULL; | |
1156 | } | |
1157 | ||
1158 | int | |
52dc7ee6 | 1159 | ospf_crypt_key_delete (struct list *auth_crypt, u_char key_id) |
718e3744 | 1160 | { |
52dc7ee6 | 1161 | struct listnode *node; |
718e3744 | 1162 | struct crypt_key *ck; |
1163 | ||
1164 | for (node = listhead (auth_crypt); node; nextnode (node)) | |
1165 | { | |
1166 | ck = getdata (node); | |
1167 | if (ck->key_id == key_id) | |
1168 | { | |
1169 | listnode_delete (auth_crypt, ck); | |
1170 | return 1; | |
1171 | } | |
1172 | } | |
1173 | ||
1174 | return 0; | |
1175 | } | |
1176 | ||
1177 | void | |
1178 | ospf_if_init () | |
1179 | { | |
1180 | /* Initialize Zebra interface data structure. */ | |
1181 | if_init (); | |
020709f9 | 1182 | om->iflist = iflist; |
718e3744 | 1183 | if_add_hook (IF_NEW_HOOK, ospf_if_new_hook); |
1184 | if_add_hook (IF_DELETE_HOOK, ospf_if_delete_hook); | |
1185 | } |