]>
Commit | Line | Data |
---|---|---|
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; | |
242 | listnode node; | |
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; | |
295 | #ifdef HAVE_NSSA | |
296 | case OSPF_AREA_NSSA: | |
297 | UNSET_FLAG (oi->nbr_self->options, OSPF_OPTION_E); | |
298 | SET_FLAG (oi->nbr_self->options, OSPF_OPTION_NP); | |
299 | break; | |
300 | #endif /* HAVE_NSSA */ | |
301 | } | |
718e3744 | 302 | |
303 | ospf_lsa_unlock (oi->network_lsa_self); | |
304 | oi->network_lsa_self = NULL; | |
305 | OSPF_TIMER_OFF (oi->t_network_lsa_self); | |
306 | } | |
307 | ||
308 | void | |
309 | ospf_if_free (struct ospf_interface *oi) | |
310 | { | |
311 | ospf_if_down (oi); | |
312 | ||
313 | assert (oi->state == ISM_Down); | |
314 | ||
315 | #ifdef HAVE_OPAQUE_LSA | |
316 | ospf_opaque_type9_lsa_term (oi); | |
317 | #endif /* HAVE_OPAQUE_LSA */ | |
318 | ||
319 | /* Free Pseudo Neighbour */ | |
320 | ospf_nbr_delete (oi->nbr_self); | |
321 | ||
322 | route_table_finish (oi->nbrs); | |
323 | route_table_finish (oi->ls_upd_queue); | |
324 | ||
325 | /* Free any lists that should be freed */ | |
326 | list_free (oi->nbr_nbma); | |
327 | ||
328 | list_free (oi->ls_ack); | |
329 | list_free (oi->ls_ack_direct.ls_ack); | |
330 | ||
331 | ospf_delete_from_if (oi->ifp, oi); | |
332 | ||
68980084 | 333 | listnode_delete (oi->ospf->oiflist, oi); |
718e3744 | 334 | listnode_delete (oi->area->oiflist, oi); |
335 | ||
336 | memset (oi, 0, sizeof (*oi)); | |
337 | XFREE (MTYPE_OSPF_IF, oi); | |
338 | } | |
339 | ||
340 | \f | |
341 | /* | |
342 | * check if interface with given address is configured and | |
343 | * return it if yes. | |
344 | */ | |
345 | struct ospf_interface * | |
68980084 | 346 | ospf_if_is_configured (struct ospf *ospf, struct in_addr *address) |
718e3744 | 347 | { |
348 | listnode node; | |
349 | struct ospf_interface *oi; | |
350 | struct prefix *addr; | |
351 | ||
68980084 | 352 | for (node = listhead (ospf->oiflist); node; nextnode (node)) |
718e3744 | 353 | if ((oi = getdata (node)) != NULL && oi->type != OSPF_IFTYPE_VIRTUALLINK) |
354 | { | |
355 | if (oi->type == OSPF_IFTYPE_POINTOPOINT) | |
356 | addr = oi->connected->destination; | |
357 | else | |
358 | addr = oi->address; | |
359 | ||
360 | if (IPV4_ADDR_SAME (address, &addr->u.prefix4)) | |
361 | return oi; | |
362 | } | |
363 | ||
364 | return NULL; | |
365 | } | |
366 | ||
367 | int | |
368 | ospf_if_is_up (struct ospf_interface *oi) | |
369 | { | |
370 | return if_is_up (oi->ifp); | |
371 | } | |
372 | ||
2db3d05d | 373 | struct ospf_interface * |
374 | ospf_if_exists (struct ospf_interface *oic) | |
375 | { | |
376 | listnode node; | |
377 | struct ospf *ospf; | |
378 | struct ospf_interface *oi; | |
379 | ||
380 | ospf = ospf_lookup (); | |
381 | ||
382 | for (node = listhead (ospf->oiflist); node; nextnode (node)) | |
383 | { | |
384 | if (((oi = getdata (node)) != NULL) && (oi == oic)) | |
385 | return oi; | |
386 | } | |
387 | return NULL; | |
388 | } | |
389 | ||
718e3744 | 390 | struct ospf_interface * |
68980084 | 391 | ospf_if_lookup_by_local_addr (struct ospf *ospf, |
392 | struct interface *ifp, struct in_addr address) | |
718e3744 | 393 | { |
394 | listnode node; | |
395 | struct ospf_interface *oi; | |
396 | ||
68980084 | 397 | for (node = listhead (ospf->oiflist); node; nextnode (node)) |
718e3744 | 398 | if ((oi = getdata (node)) != NULL && oi->type != OSPF_IFTYPE_VIRTUALLINK) |
399 | { | |
400 | if (ifp && oi->ifp != ifp) | |
401 | continue; | |
402 | ||
403 | if (IPV4_ADDR_SAME (&address, &oi->address->u.prefix4)) | |
404 | return oi; | |
405 | } | |
406 | ||
407 | return NULL; | |
408 | } | |
409 | ||
410 | struct ospf_interface * | |
68980084 | 411 | ospf_if_lookup_by_prefix (struct ospf *ospf, struct prefix_ipv4 *p) |
718e3744 | 412 | { |
413 | listnode node; | |
414 | struct ospf_interface *oi; | |
415 | struct prefix ptmp; | |
416 | ||
417 | /* Check each Interface. */ | |
68980084 | 418 | for (node = listhead (ospf->oiflist); node; nextnode (node)) |
419 | { | |
420 | if ((oi = getdata (node)) != NULL && oi->type != OSPF_IFTYPE_VIRTUALLINK) | |
421 | { | |
422 | if (oi->type == OSPF_IFTYPE_POINTOPOINT) | |
423 | { | |
424 | prefix_copy (&ptmp, oi->connected->destination); | |
425 | ptmp.prefixlen = IPV4_MAX_BITLEN; | |
426 | } | |
427 | else | |
428 | prefix_copy (&ptmp, oi->address); | |
718e3744 | 429 | |
68980084 | 430 | apply_mask (&ptmp); |
431 | if (prefix_same (&ptmp, (struct prefix *) p)) | |
432 | return oi; | |
433 | } | |
434 | } | |
718e3744 | 435 | return NULL; |
436 | } | |
437 | ||
438 | /* determine receiving interface by source of packet */ | |
439 | struct ospf_interface * | |
68980084 | 440 | ospf_if_lookup_recv_if (struct ospf *ospf, struct in_addr src) |
718e3744 | 441 | { |
442 | listnode node; | |
443 | struct prefix_ipv4 addr; | |
444 | struct ospf_interface *oi, *match; | |
445 | ||
446 | addr.family = AF_INET; | |
447 | addr.prefix = src; | |
448 | addr.prefixlen = IPV4_MAX_BITLEN; | |
449 | ||
450 | match = NULL; | |
451 | ||
68980084 | 452 | for (node = listhead (ospf->oiflist); node; nextnode (node)) |
718e3744 | 453 | { |
454 | oi = getdata (node); | |
455 | ||
456 | if (oi->type == OSPF_IFTYPE_VIRTUALLINK) | |
457 | continue; | |
458 | ||
459 | if (oi->type == OSPF_IFTYPE_POINTOPOINT) | |
460 | { | |
461 | if (IPV4_ADDR_SAME (&oi->connected->destination->u.prefix4, &src)) | |
462 | return oi; | |
463 | } | |
464 | else | |
465 | { | |
466 | if (prefix_match (oi->address, (struct prefix *) &addr)) | |
0a825c79 | 467 | { |
af8d0336 | 468 | if ( (match == NULL) || |
469 | (match->address->prefixlen < oi->address->prefixlen) | |
470 | ) | |
0a825c79 | 471 | match = oi; |
472 | } | |
718e3744 | 473 | } |
474 | } | |
475 | ||
476 | return match; | |
477 | } | |
478 | \f | |
479 | void | |
480 | ospf_if_stream_set (struct ospf_interface *oi) | |
481 | { | |
482 | /* set output fifo queue. */ | |
483 | if (oi->obuf == NULL) | |
484 | oi->obuf = ospf_fifo_new (); | |
485 | } | |
486 | ||
487 | void | |
488 | ospf_if_stream_unset (struct ospf_interface *oi) | |
489 | { | |
68980084 | 490 | struct ospf *ospf = oi->ospf; |
491 | ||
718e3744 | 492 | if (oi->obuf) |
493 | { | |
494 | ospf_fifo_free (oi->obuf); | |
495 | oi->obuf = NULL; | |
496 | ||
497 | if (oi->on_write_q) | |
498 | { | |
68980084 | 499 | listnode_delete (ospf->oi_write_q, oi); |
500 | if (list_isempty(ospf->oi_write_q)) | |
501 | OSPF_TIMER_OFF (ospf->t_write); | |
718e3744 | 502 | oi->on_write_q = 0; |
503 | } | |
504 | } | |
505 | } | |
68980084 | 506 | |
718e3744 | 507 | \f |
508 | struct ospf_if_params * | |
509 | ospf_new_if_params () | |
510 | { | |
511 | struct ospf_if_params *oip; | |
512 | ||
513 | oip = XMALLOC (MTYPE_OSPF_IF_PARAMS, sizeof (struct ospf_if_params)); | |
718e3744 | 514 | |
515 | if (!oip) | |
516 | return NULL; | |
517 | ||
f645789b | 518 | memset (oip, 0, sizeof (struct ospf_if_params)); |
519 | ||
718e3744 | 520 | UNSET_IF_PARAM (oip, output_cost_cmd); |
521 | UNSET_IF_PARAM (oip, transmit_delay); | |
522 | UNSET_IF_PARAM (oip, retransmit_interval); | |
523 | UNSET_IF_PARAM (oip, passive_interface); | |
524 | UNSET_IF_PARAM (oip, v_hello); | |
525 | UNSET_IF_PARAM (oip, v_wait); | |
526 | UNSET_IF_PARAM (oip, priority); | |
527 | UNSET_IF_PARAM (oip, type); | |
528 | UNSET_IF_PARAM (oip, auth_simple); | |
529 | UNSET_IF_PARAM (oip, auth_crypt); | |
530 | UNSET_IF_PARAM (oip, auth_type); | |
ec1ca63c | 531 | |
532 | oip->auth_crypt = list_new (); | |
718e3744 | 533 | |
718e3744 | 534 | return oip; |
535 | } | |
536 | ||
537 | void | |
538 | ospf_del_if_params (struct ospf_if_params *oip) | |
539 | { | |
540 | list_delete (oip->auth_crypt); | |
541 | XFREE (MTYPE_OSPF_IF_PARAMS, oip); | |
542 | } | |
543 | ||
544 | void | |
545 | ospf_free_if_params (struct interface *ifp, struct in_addr addr) | |
546 | { | |
547 | struct ospf_if_params *oip; | |
548 | struct prefix_ipv4 p; | |
549 | struct route_node *rn; | |
550 | p.prefixlen = IPV4_MAX_PREFIXLEN; | |
551 | p.prefix = addr; | |
552 | rn = route_node_lookup (IF_OIFS_PARAMS (ifp), (struct prefix*)&p); | |
553 | if (!rn || !rn->info) | |
554 | return; | |
555 | ||
556 | oip = rn->info; | |
557 | route_unlock_node (rn); | |
558 | ||
559 | if (!OSPF_IF_PARAM_CONFIGURED (oip, output_cost_cmd) && | |
560 | !OSPF_IF_PARAM_CONFIGURED (oip, transmit_delay) && | |
561 | !OSPF_IF_PARAM_CONFIGURED (oip, retransmit_interval) && | |
562 | !OSPF_IF_PARAM_CONFIGURED (oip, passive_interface) && | |
563 | !OSPF_IF_PARAM_CONFIGURED (oip, v_hello) && | |
564 | !OSPF_IF_PARAM_CONFIGURED (oip, v_wait) && | |
565 | !OSPF_IF_PARAM_CONFIGURED (oip, priority) && | |
566 | !OSPF_IF_PARAM_CONFIGURED (oip, type) && | |
567 | !OSPF_IF_PARAM_CONFIGURED (oip, auth_simple) && | |
568 | !OSPF_IF_PARAM_CONFIGURED (oip, auth_type) && | |
569 | listcount (oip->auth_crypt) == 0) | |
570 | { | |
571 | ospf_del_if_params (oip); | |
572 | rn->info = NULL; | |
573 | route_unlock_node (rn); | |
574 | } | |
575 | } | |
576 | ||
577 | struct ospf_if_params * | |
578 | ospf_lookup_if_params (struct interface *ifp, struct in_addr addr) | |
579 | { | |
580 | struct prefix_ipv4 p; | |
581 | struct route_node *rn; | |
582 | ||
583 | p.prefixlen = IPV4_MAX_PREFIXLEN; | |
584 | p.prefix = addr; | |
585 | ||
586 | rn = route_node_lookup (IF_OIFS_PARAMS (ifp), (struct prefix*)&p); | |
587 | ||
588 | if (rn) | |
589 | { | |
590 | route_unlock_node (rn); | |
591 | return rn->info; | |
592 | } | |
593 | ||
594 | return NULL; | |
595 | } | |
596 | ||
597 | struct ospf_if_params * | |
598 | ospf_get_if_params (struct interface *ifp, struct in_addr addr) | |
599 | { | |
600 | struct prefix_ipv4 p; | |
601 | struct route_node *rn; | |
602 | ||
603 | p.family = AF_INET; | |
604 | p.prefixlen = IPV4_MAX_PREFIXLEN; | |
605 | p.prefix = addr; | |
606 | ||
607 | rn = route_node_get (IF_OIFS_PARAMS (ifp), (struct prefix*)&p); | |
608 | ||
609 | if (rn->info == NULL) | |
610 | rn->info = ospf_new_if_params (); | |
611 | else | |
612 | route_unlock_node (rn); | |
613 | ||
614 | return rn->info; | |
615 | } | |
616 | ||
617 | void | |
618 | ospf_if_update_params (struct interface *ifp, struct in_addr addr) | |
619 | { | |
620 | struct route_node *rn; | |
621 | struct ospf_interface *oi; | |
622 | ||
623 | for (rn = route_top (IF_OIFS (ifp)); rn; rn = route_next (rn)) | |
624 | { | |
625 | if ((oi = rn->info) == NULL) | |
626 | continue; | |
627 | ||
628 | if (IPV4_ADDR_SAME (&oi->address->u.prefix4, &addr)) | |
629 | oi->params = ospf_lookup_if_params (ifp, oi->address->u.prefix4); | |
630 | } | |
631 | } | |
632 | ||
633 | int | |
634 | ospf_if_new_hook (struct interface *ifp) | |
635 | { | |
636 | int rc = 0; | |
637 | ||
638 | ifp->info = XMALLOC (MTYPE_OSPF_IF_INFO, sizeof (struct ospf_if_info)); | |
639 | memset (ifp->info, 0, sizeof (struct ospf_if_info)); | |
640 | ||
641 | IF_OIFS (ifp) = route_table_init (); | |
642 | IF_OIFS_PARAMS (ifp) = route_table_init (); | |
643 | ||
644 | IF_DEF_PARAMS (ifp) = ospf_new_if_params (); | |
645 | ||
646 | SET_IF_PARAM (IF_DEF_PARAMS (ifp), transmit_delay); | |
647 | IF_DEF_PARAMS (ifp)->transmit_delay = OSPF_TRANSMIT_DELAY_DEFAULT; | |
648 | ||
649 | SET_IF_PARAM (IF_DEF_PARAMS (ifp), retransmit_interval); | |
650 | IF_DEF_PARAMS (ifp)->retransmit_interval = OSPF_RETRANSMIT_INTERVAL_DEFAULT; | |
651 | ||
652 | SET_IF_PARAM (IF_DEF_PARAMS (ifp), priority); | |
653 | IF_DEF_PARAMS (ifp)->priority = OSPF_ROUTER_PRIORITY_DEFAULT; | |
654 | ||
655 | SET_IF_PARAM (IF_DEF_PARAMS (ifp), passive_interface); | |
656 | IF_DEF_PARAMS (ifp)->passive_interface = OSPF_IF_ACTIVE; | |
657 | ||
658 | SET_IF_PARAM (IF_DEF_PARAMS (ifp), v_hello); | |
659 | IF_DEF_PARAMS (ifp)->v_hello = OSPF_HELLO_INTERVAL_DEFAULT; | |
660 | ||
661 | SET_IF_PARAM (IF_DEF_PARAMS (ifp), v_wait); | |
662 | IF_DEF_PARAMS (ifp)->v_wait = OSPF_ROUTER_DEAD_INTERVAL_DEFAULT; | |
663 | ||
664 | SET_IF_PARAM (IF_DEF_PARAMS (ifp), auth_simple); | |
665 | memset (IF_DEF_PARAMS (ifp)->auth_simple, 0, OSPF_AUTH_SIMPLE_SIZE); | |
666 | ||
718e3744 | 667 | SET_IF_PARAM (IF_DEF_PARAMS (ifp), auth_type); |
668 | IF_DEF_PARAMS (ifp)->auth_type = OSPF_AUTH_NOTSET; | |
669 | ||
670 | #ifdef HAVE_OPAQUE_LSA | |
671 | rc = ospf_opaque_new_if (ifp); | |
672 | #endif /* HAVE_OPAQUE_LSA */ | |
673 | return rc; | |
674 | } | |
675 | ||
676 | int | |
677 | ospf_if_delete_hook (struct interface *ifp) | |
678 | { | |
679 | int rc = 0; | |
940b01aa | 680 | struct route_node *rn; |
718e3744 | 681 | #ifdef HAVE_OPAQUE_LSA |
682 | rc = ospf_opaque_del_if (ifp); | |
683 | #endif /* HAVE_OPAQUE_LSA */ | |
940b01aa | 684 | |
718e3744 | 685 | route_table_finish (IF_OIFS (ifp)); |
940b01aa | 686 | |
687 | for (rn = route_top (IF_OIFS_PARAMS (ifp)); rn; rn = route_next (rn)) | |
688 | if (rn->info) | |
689 | ospf_del_if_params (rn->info); | |
718e3744 | 690 | route_table_finish (IF_OIFS_PARAMS (ifp)); |
940b01aa | 691 | |
cfc959b8 | 692 | ospf_del_if_params ((struct ospf_if_params *) IF_DEF_PARAMS (ifp)); |
718e3744 | 693 | XFREE (MTYPE_OSPF_IF_INFO, ifp->info); |
694 | ifp->info = NULL; | |
695 | ||
696 | return rc; | |
697 | } | |
698 | ||
699 | int | |
700 | ospf_if_is_enable (struct ospf_interface *oi) | |
701 | { | |
702 | if (!if_is_loopback (oi->ifp)) | |
703 | if (if_is_up (oi->ifp)) | |
704 | return 1; | |
705 | ||
706 | return 0; | |
707 | } | |
708 | ||
709 | int | |
710 | ospf_if_up (struct ospf_interface *oi) | |
711 | { | |
712 | if (oi == NULL) | |
713 | return 0; | |
714 | ||
715 | if (oi->type == OSPF_IFTYPE_LOOPBACK) | |
716 | OSPF_ISM_EVENT_SCHEDULE (oi, ISM_LoopInd); | |
717 | else | |
718 | { | |
719 | if (oi->type != OSPF_IFTYPE_VIRTUALLINK) | |
68980084 | 720 | ospf_if_add_allspfrouters (oi->ospf, oi->address, oi->ifp->ifindex); |
718e3744 | 721 | ospf_if_stream_set (oi); |
722 | OSPF_ISM_EVENT_SCHEDULE (oi, ISM_InterfaceUp); | |
723 | } | |
724 | ||
725 | return 1; | |
726 | } | |
727 | ||
728 | int | |
729 | ospf_if_down (struct ospf_interface *oi) | |
730 | { | |
731 | if (oi == NULL) | |
732 | return 0; | |
733 | ||
734 | OSPF_ISM_EVENT_EXECUTE (oi, ISM_InterfaceDown); | |
735 | /* Shutdown packet reception and sending */ | |
736 | ospf_if_stream_unset (oi); | |
737 | if (oi->type != OSPF_IFTYPE_VIRTUALLINK) | |
68980084 | 738 | ospf_if_drop_allspfrouters (oi->ospf, oi->address, oi->ifp->ifindex); |
718e3744 | 739 | |
740 | ||
741 | return 1; | |
742 | } | |
743 | ||
744 | \f | |
745 | /* Virtual Link related functions. */ | |
746 | ||
747 | struct ospf_vl_data * | |
748 | ospf_vl_data_new (struct ospf_area *area, struct in_addr vl_peer) | |
749 | { | |
750 | struct ospf_vl_data *vl_data; | |
751 | ||
752 | vl_data = XMALLOC (MTYPE_OSPF_VL_DATA, sizeof (struct ospf_vl_data)); | |
753 | memset (vl_data, 0, sizeof (struct ospf_vl_data)); | |
754 | ||
755 | vl_data->vl_peer.s_addr = vl_peer.s_addr; | |
756 | vl_data->vl_area_id = area->area_id; | |
757 | vl_data->format = area->format; | |
758 | ||
759 | return vl_data; | |
760 | } | |
761 | ||
762 | void | |
763 | ospf_vl_data_free (struct ospf_vl_data *vl_data) | |
764 | { | |
765 | XFREE (MTYPE_OSPF_VL_DATA, vl_data); | |
766 | } | |
767 | ||
768 | u_int vlink_count = 0; | |
769 | ||
770 | struct ospf_interface * | |
68980084 | 771 | ospf_vl_new (struct ospf *ospf, struct ospf_vl_data *vl_data) |
718e3744 | 772 | { |
773 | struct ospf_interface * voi; | |
774 | struct interface * vi; | |
775 | char ifname[INTERFACE_NAMSIZ + 1]; | |
776 | struct ospf_area *area; | |
777 | struct in_addr area_id; | |
778 | struct connected *co; | |
779 | struct prefix_ipv4 *p; | |
780 | ||
781 | if (IS_DEBUG_OSPF_EVENT) | |
782 | zlog_info ("ospf_vl_new(): Start"); | |
783 | if (vlink_count == OSPF_VL_MAX_COUNT) | |
784 | { | |
785 | if (IS_DEBUG_OSPF_EVENT) | |
786 | zlog_info ("ospf_vl_new(): Alarm: " | |
787 | "cannot create more than OSPF_MAX_VL_COUNT virtual links"); | |
788 | return NULL; | |
789 | } | |
790 | ||
791 | if (IS_DEBUG_OSPF_EVENT) | |
792 | zlog_info ("ospf_vl_new(): creating pseudo zebra interface"); | |
793 | ||
106d2fd5 | 794 | snprintf (ifname, INTERFACE_NAMSIZ + 1, "VLINK%d", vlink_count); |
795 | vi = if_create (ifname, INTERFACE_NAMSIZ); | |
718e3744 | 796 | co = connected_new (); |
797 | co->ifp = vi; | |
798 | listnode_add (vi->connected, co); | |
799 | ||
800 | p = prefix_ipv4_new (); | |
801 | p->family = AF_INET; | |
802 | p->prefix.s_addr = 0; | |
803 | p->prefixlen = 0; | |
804 | ||
805 | co->address = (struct prefix *)p; | |
806 | ||
68980084 | 807 | voi = ospf_if_new (ospf, vi, co->address); |
718e3744 | 808 | if (voi == NULL) |
809 | { | |
810 | if (IS_DEBUG_OSPF_EVENT) | |
811 | zlog_info ("ospf_vl_new(): Alarm: OSPF int structure is not created"); | |
812 | return NULL; | |
813 | } | |
814 | voi->connected = co; | |
815 | voi->vl_data = vl_data; | |
816 | voi->ifp->mtu = OSPF_VL_MTU; | |
817 | voi->type = OSPF_IFTYPE_VIRTUALLINK; | |
818 | ||
106d2fd5 | 819 | vlink_count++; |
718e3744 | 820 | if (IS_DEBUG_OSPF_EVENT) |
821 | zlog_info ("ospf_vl_new(): Created name: %s", ifname); | |
718e3744 | 822 | if (IS_DEBUG_OSPF_EVENT) |
823 | zlog_info ("ospf_vl_new(): set if->name to %s", vi->name); | |
824 | ||
825 | area_id.s_addr = 0; | |
68980084 | 826 | area = ospf_area_get (ospf, area_id, OSPF_AREA_ID_FORMAT_ADDRESS); |
718e3744 | 827 | voi->area = area; |
828 | ||
829 | if (IS_DEBUG_OSPF_EVENT) | |
830 | zlog_info ("ospf_vl_new(): set associated area to the backbone"); | |
831 | ||
832 | ospf_area_add_if (voi->area, voi); | |
833 | ||
834 | ospf_if_stream_set (voi); | |
835 | ||
836 | if (IS_DEBUG_OSPF_EVENT) | |
837 | zlog_info ("ospf_vl_new(): Stop"); | |
838 | return voi; | |
839 | } | |
840 | ||
841 | void | |
842 | ospf_vl_if_delete (struct ospf_vl_data *vl_data) | |
843 | { | |
844 | struct interface *ifp = vl_data->vl_oi->ifp; | |
845 | vl_data->vl_oi->address->u.prefix4.s_addr = 0; | |
846 | vl_data->vl_oi->address->prefixlen = 0; | |
847 | ospf_if_free (vl_data->vl_oi); | |
848 | if_delete (ifp); | |
849 | vlink_count--; | |
850 | } | |
851 | ||
852 | struct ospf_vl_data * | |
853 | ospf_vl_lookup (struct ospf_area *area, struct in_addr vl_peer) | |
854 | { | |
855 | struct ospf_vl_data *vl_data; | |
856 | listnode node; | |
857 | ||
68980084 | 858 | for (node = listhead (area->ospf->vlinks); node; nextnode (node)) |
718e3744 | 859 | if ((vl_data = getdata (node)) != NULL) |
860 | if (vl_data->vl_peer.s_addr == vl_peer.s_addr && | |
861 | IPV4_ADDR_SAME (&vl_data->vl_area_id, &area->area_id)) | |
862 | return vl_data; | |
863 | ||
864 | return NULL; | |
865 | } | |
866 | ||
867 | void | |
868 | ospf_vl_shutdown (struct ospf_vl_data *vl_data) | |
869 | { | |
870 | struct ospf_interface *oi; | |
871 | ||
872 | if ((oi = vl_data->vl_oi) == NULL) | |
873 | return; | |
874 | ||
875 | oi->address->u.prefix4.s_addr = 0; | |
876 | oi->address->prefixlen = 0; | |
877 | ||
878 | UNSET_FLAG (oi->ifp->flags, IFF_UP); | |
879 | /* OSPF_ISM_EVENT_SCHEDULE (oi, ISM_InterfaceDown); */ | |
880 | OSPF_ISM_EVENT_EXECUTE (oi, ISM_InterfaceDown); | |
881 | } | |
882 | ||
883 | void | |
68980084 | 884 | ospf_vl_add (struct ospf *ospf, struct ospf_vl_data *vl_data) |
718e3744 | 885 | { |
68980084 | 886 | listnode_add (ospf->vlinks, vl_data); |
718e3744 | 887 | #ifdef HAVE_SNMP |
888 | ospf_snmp_vl_add (vl_data); | |
889 | #endif /* HAVE_SNMP */ | |
890 | } | |
891 | ||
892 | void | |
68980084 | 893 | ospf_vl_delete (struct ospf *ospf, struct ospf_vl_data *vl_data) |
718e3744 | 894 | { |
895 | ospf_vl_shutdown (vl_data); | |
896 | ospf_vl_if_delete (vl_data); | |
897 | ||
898 | #ifdef HAVE_SNMP | |
899 | ospf_snmp_vl_delete (vl_data); | |
900 | #endif /* HAVE_SNMP */ | |
68980084 | 901 | listnode_delete (ospf->vlinks, vl_data); |
718e3744 | 902 | |
903 | ospf_vl_data_free (vl_data); | |
904 | } | |
905 | ||
2e6b0bbb | 906 | int |
718e3744 | 907 | ospf_vl_set_params (struct ospf_vl_data *vl_data, struct vertex *v) |
908 | { | |
909 | int changed = 0; | |
910 | struct ospf_interface *voi; | |
911 | listnode node; | |
912 | struct vertex_nexthop *nh; | |
913 | int i; | |
914 | struct router_lsa *rl; | |
915 | ||
916 | voi = vl_data->vl_oi; | |
917 | ||
918 | if (voi->output_cost != v->distance) | |
919 | { | |
920 | voi->output_cost = v->distance; | |
921 | changed = 1; | |
922 | } | |
923 | ||
924 | for (node = listhead (v->nexthop); node; nextnode (node)) | |
925 | if ((nh = getdata (node)) != NULL) | |
926 | { | |
927 | vl_data->out_oi = (struct ospf_interface *) nh->oi; | |
928 | ||
929 | voi->address->u.prefix4 = vl_data->out_oi->address->u.prefix4; | |
930 | voi->address->prefixlen = vl_data->out_oi->address->prefixlen; | |
931 | ||
932 | break; /* We take the first interface. */ | |
933 | } | |
934 | ||
935 | rl = (struct router_lsa *)v->lsa; | |
d355bfa7 | 936 | |
937 | /* use SPF determined backlink index in struct vertex | |
938 | * for virtual link destination address | |
939 | */ | |
940 | if (v->backlink >= 0) | |
941 | { | |
942 | if (!IPV4_ADDR_SAME (&vl_data->peer_addr, | |
943 | &rl->link[v->backlink].link_data)) | |
944 | changed = 1; | |
945 | vl_data->peer_addr = rl->link[v->backlink].link_data; | |
946 | } | |
947 | else | |
718e3744 | 948 | { |
d355bfa7 | 949 | /* This is highly odd, there is no backlink index |
950 | * there should be due to the ospf_spf_has_link() check | |
951 | * in SPF. Lets warn and try pick a link anyway. | |
952 | */ | |
953 | zlog_warn ("ospf_vl_set_params: No backlink for %s!", | |
954 | vl_data->vl_oi->ifp->name); | |
955 | for (i = 0; i < ntohs (rl->links); i++) | |
2e6b0bbb | 956 | { |
d355bfa7 | 957 | switch (rl->link[i].type) |
958 | { | |
959 | case LSA_LINK_TYPE_VIRTUALLINK: | |
960 | if (IS_DEBUG_OSPF_EVENT) | |
961 | zlog_info ("found back link through VL"); | |
962 | case LSA_LINK_TYPE_TRANSIT: | |
963 | case LSA_LINK_TYPE_POINTOPOINT: | |
964 | vl_data->peer_addr = rl->link[i].link_data; | |
965 | if (IS_DEBUG_OSPF_EVENT) | |
966 | zlog_info ("%s peer address is %s\n", | |
967 | vl_data->vl_oi->ifp->name, | |
968 | inet_ntoa(vl_data->peer_addr)); | |
969 | return changed; | |
970 | } | |
2e6b0bbb | 971 | } |
718e3744 | 972 | } |
d355bfa7 | 973 | |
974 | if (IS_DEBUG_OSPF_EVENT) | |
975 | zlog_info ("ospf_vl_set_params: %s peer address is %s\n", | |
976 | vl_data->vl_oi->ifp->name, | |
977 | inet_ntoa(vl_data->peer_addr)); | |
978 | ||
2e6b0bbb | 979 | return changed; |
718e3744 | 980 | } |
981 | ||
982 | ||
983 | void | |
68980084 | 984 | ospf_vl_up_check (struct ospf_area *area, struct in_addr rid, |
718e3744 | 985 | struct vertex *v) |
986 | { | |
68980084 | 987 | struct ospf *ospf = area->ospf; |
718e3744 | 988 | listnode node; |
989 | struct ospf_vl_data *vl_data; | |
990 | struct ospf_interface *oi; | |
991 | ||
992 | if (IS_DEBUG_OSPF_EVENT) | |
993 | { | |
994 | zlog_info ("ospf_vl_up_check(): Start"); | |
995 | zlog_info ("ospf_vl_up_check(): Router ID is %s", inet_ntoa (rid)); | |
996 | zlog_info ("ospf_vl_up_check(): Area is %s", inet_ntoa (area->area_id)); | |
997 | } | |
998 | ||
68980084 | 999 | for (node = listhead (ospf->vlinks); node; nextnode (node)) |
718e3744 | 1000 | { |
1001 | if ((vl_data = getdata (node)) == NULL) | |
1002 | continue; | |
1003 | ||
1004 | if (IS_DEBUG_OSPF_EVENT) | |
1005 | { | |
1006 | zlog_info ("ospf_vl_up_check(): considering VL, name: %s", | |
1007 | vl_data->vl_oi->ifp->name); | |
1008 | zlog_info ("ospf_vl_up_check(): VL area: %s, peer ID: %s", | |
1009 | inet_ntoa (vl_data->vl_area_id), | |
1010 | inet_ntoa (vl_data->vl_peer)); | |
1011 | } | |
1012 | ||
1013 | if (IPV4_ADDR_SAME (&vl_data->vl_peer, &rid) && | |
1014 | IPV4_ADDR_SAME (&vl_data->vl_area_id, &area->area_id)) | |
1015 | { | |
1016 | oi = vl_data->vl_oi; | |
1017 | SET_FLAG (vl_data->flags, OSPF_VL_FLAG_APPROVED); | |
1018 | ||
1019 | if (IS_DEBUG_OSPF_EVENT) | |
1020 | zlog_info ("ospf_vl_up_check(): this VL matched"); | |
1021 | ||
1022 | if (oi->state == ISM_Down) | |
1023 | { | |
1024 | if (IS_DEBUG_OSPF_EVENT) | |
1025 | zlog_info ("ospf_vl_up_check(): VL is down, waking it up"); | |
1026 | SET_FLAG (oi->ifp->flags, IFF_UP); | |
2e6b0bbb | 1027 | OSPF_ISM_EVENT_EXECUTE(oi,ISM_InterfaceUp); |
718e3744 | 1028 | } |
1029 | ||
2e6b0bbb | 1030 | if (ospf_vl_set_params (vl_data, v)) |
1031 | { | |
1032 | if (IS_DEBUG_OSPF (ism, ISM_EVENTS)) | |
1033 | zlog_info ("ospf_vl_up_check: VL cost change, scheduling router lsa refresh"); | |
1034 | if(ospf->backbone) | |
1035 | ospf_router_lsa_timer_add(ospf->backbone); | |
1036 | else if (IS_DEBUG_OSPF (ism, ISM_EVENTS)) | |
1037 | zlog_info ("ospf_vl_up_check: VL cost change, no backbone!"); | |
1038 | } | |
718e3744 | 1039 | } |
1040 | } | |
1041 | } | |
1042 | ||
1043 | void | |
68980084 | 1044 | ospf_vl_unapprove (struct ospf *ospf) |
718e3744 | 1045 | { |
1046 | listnode node; | |
1047 | struct ospf_vl_data *vl_data; | |
1048 | ||
68980084 | 1049 | for (node = listhead (ospf->vlinks); node; nextnode (node)) |
718e3744 | 1050 | if ((vl_data = getdata (node)) != NULL) |
1051 | UNSET_FLAG (vl_data->flags, OSPF_VL_FLAG_APPROVED); | |
1052 | } | |
1053 | ||
1054 | void | |
68980084 | 1055 | ospf_vl_shut_unapproved (struct ospf *ospf) |
718e3744 | 1056 | { |
1057 | listnode node; | |
1058 | struct ospf_vl_data *vl_data; | |
1059 | ||
68980084 | 1060 | for (node = listhead (ospf->vlinks); node; nextnode (node)) |
718e3744 | 1061 | if ((vl_data = getdata (node)) != NULL) |
1062 | if (!CHECK_FLAG (vl_data->flags, OSPF_VL_FLAG_APPROVED)) | |
1063 | ospf_vl_shutdown (vl_data); | |
1064 | } | |
1065 | ||
1066 | int | |
1067 | ospf_full_virtual_nbrs (struct ospf_area *area) | |
1068 | { | |
1069 | if (IS_DEBUG_OSPF_EVENT) | |
1070 | { | |
1071 | zlog_info ("counting fully adjacent virtual neighbors in area %s", | |
1072 | inet_ntoa (area->area_id)); | |
1073 | zlog_info ("there are %d of them", area->full_vls); | |
1074 | } | |
1075 | ||
1076 | return area->full_vls; | |
1077 | } | |
1078 | ||
1079 | int | |
1080 | ospf_vls_in_area (struct ospf_area *area) | |
1081 | { | |
1082 | listnode node; | |
1083 | struct ospf_vl_data *vl_data; | |
1084 | int c = 0; | |
1085 | ||
68980084 | 1086 | for (node = listhead (area->ospf->vlinks); node; nextnode (node)) |
718e3744 | 1087 | if ((vl_data = getdata (node)) != NULL) |
1088 | if (IPV4_ADDR_SAME (&vl_data->vl_area_id, &area->area_id)) | |
1089 | c++; | |
1090 | ||
1091 | return c; | |
1092 | } | |
1093 | ||
1094 | \f | |
1095 | struct crypt_key * | |
1096 | ospf_crypt_key_new () | |
1097 | { | |
1098 | struct crypt_key *ck; | |
1099 | ||
1100 | ck = XMALLOC (MTYPE_OSPF_CRYPT_KEY, sizeof (struct crypt_key)); | |
1101 | memset (ck, 0, sizeof (struct crypt_key)); | |
1102 | ||
1103 | return ck; | |
1104 | } | |
1105 | ||
1106 | void | |
1107 | ospf_crypt_key_add (list crypt, struct crypt_key *ck) | |
1108 | { | |
1109 | listnode_add (crypt, ck); | |
1110 | } | |
1111 | ||
1112 | struct crypt_key * | |
1113 | ospf_crypt_key_lookup (list auth_crypt, u_char key_id) | |
1114 | { | |
1115 | listnode node; | |
1116 | struct crypt_key *ck; | |
1117 | ||
1118 | for (node = listhead (auth_crypt); node; nextnode (node)) | |
1119 | { | |
1120 | ck = getdata (node); | |
1121 | if (ck->key_id == key_id) | |
1122 | return ck; | |
1123 | } | |
1124 | ||
1125 | return NULL; | |
1126 | } | |
1127 | ||
1128 | int | |
1129 | ospf_crypt_key_delete (list auth_crypt, u_char key_id) | |
1130 | { | |
1131 | listnode node; | |
1132 | struct crypt_key *ck; | |
1133 | ||
1134 | for (node = listhead (auth_crypt); node; nextnode (node)) | |
1135 | { | |
1136 | ck = getdata (node); | |
1137 | if (ck->key_id == key_id) | |
1138 | { | |
1139 | listnode_delete (auth_crypt, ck); | |
1140 | return 1; | |
1141 | } | |
1142 | } | |
1143 | ||
1144 | return 0; | |
1145 | } | |
1146 | ||
1147 | void | |
1148 | ospf_if_init () | |
1149 | { | |
1150 | /* Initialize Zebra interface data structure. */ | |
1151 | if_init (); | |
020709f9 | 1152 | om->iflist = iflist; |
718e3744 | 1153 | if_add_hook (IF_NEW_HOOK, ospf_if_new_hook); |
1154 | if_add_hook (IF_DELETE_HOOK, ospf_if_delete_hook); | |
1155 | } |