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718e3744 | 1 | /* OSPF version 2 daemon program. |
2 | Copyright (C) 1999, 2000 Toshiaki Takada | |
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 | |
17 | along with GNU Zebra; see the file COPYING. If not, write to the Free | |
18 | Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA | |
19 | 02111-1307, USA. */ | |
20 | ||
21 | #include <zebra.h> | |
22 | ||
23 | #include "thread.h" | |
24 | #include "vty.h" | |
25 | #include "command.h" | |
26 | #include "linklist.h" | |
27 | #include "prefix.h" | |
28 | #include "table.h" | |
29 | #include "if.h" | |
30 | #include "memory.h" | |
31 | #include "stream.h" | |
32 | #include "log.h" | |
33 | #include "sockunion.h" /* for inet_aton () */ | |
34 | #include "zclient.h" | |
35 | #include "plist.h" | |
36 | ||
37 | #include "ospfd/ospfd.h" | |
38 | #include "ospfd/ospf_network.h" | |
39 | #include "ospfd/ospf_interface.h" | |
40 | #include "ospfd/ospf_ism.h" | |
41 | #include "ospfd/ospf_asbr.h" | |
42 | #include "ospfd/ospf_lsa.h" | |
43 | #include "ospfd/ospf_lsdb.h" | |
44 | #include "ospfd/ospf_neighbor.h" | |
45 | #include "ospfd/ospf_nsm.h" | |
46 | #include "ospfd/ospf_spf.h" | |
47 | #include "ospfd/ospf_packet.h" | |
48 | #include "ospfd/ospf_dump.h" | |
49 | #include "ospfd/ospf_zebra.h" | |
50 | #include "ospfd/ospf_abr.h" | |
51 | #include "ospfd/ospf_flood.h" | |
52 | #include "ospfd/ospf_route.h" | |
53 | #include "ospfd/ospf_ase.h" | |
54 | ||
020709f9 | 55 | \f |
edd7c245 | 56 | |
020709f9 | 57 | /* OSPF process wide configuration. */ |
58 | static struct ospf_master ospf_master; | |
59 | ||
60 | /* OSPF process wide configuration pointer to export. */ | |
61 | struct ospf_master *om; | |
718e3744 | 62 | |
63 | extern struct zclient *zclient; | |
18a6dce6 | 64 | extern struct in_addr router_id_zebra; |
718e3744 | 65 | |
66 | \f | |
68980084 | 67 | void ospf_remove_vls_through_area (struct ospf *, struct ospf_area *); |
68 | void ospf_network_free (struct ospf *, struct ospf_network *); | |
718e3744 | 69 | void ospf_area_free (struct ospf_area *); |
70 | void ospf_network_run (struct ospf *, struct prefix *, struct ospf_area *); | |
71 | ||
718e3744 | 72 | #define OSPF_EXTERNAL_LSA_ORIGINATE_DELAY 1 |
73 | ||
74 | void | |
68980084 | 75 | ospf_router_id_update (struct ospf *ospf) |
718e3744 | 76 | { |
718e3744 | 77 | struct in_addr router_id, router_id_old; |
52dc7ee6 | 78 | struct listnode *node; |
718e3744 | 79 | |
80 | if (IS_DEBUG_OSPF_EVENT) | |
9b0e25c0 | 81 | zlog_debug ("Router-ID[OLD:%s]: Update", inet_ntoa (ospf->router_id)); |
718e3744 | 82 | |
68980084 | 83 | router_id_old = ospf->router_id; |
718e3744 | 84 | |
68980084 | 85 | if (ospf->router_id_static.s_addr != 0) |
86 | router_id = ospf->router_id_static; | |
718e3744 | 87 | else |
18a6dce6 | 88 | router_id = router_id_zebra; |
718e3744 | 89 | |
68980084 | 90 | ospf->router_id = router_id; |
718e3744 | 91 | |
92 | if (IS_DEBUG_OSPF_EVENT) | |
9b0e25c0 | 93 | zlog_debug ("Router-ID[NEW:%s]: Update", inet_ntoa (ospf->router_id)); |
718e3744 | 94 | |
95 | if (!IPV4_ADDR_SAME (&router_id_old, &router_id)) | |
96 | { | |
68980084 | 97 | for (node = listhead (ospf->oiflist); node; nextnode (node)) |
718e3744 | 98 | { |
99 | struct ospf_interface *oi = getdata (node); | |
100 | ||
101 | /* Update self-neighbor's router_id. */ | |
102 | oi->nbr_self->router_id = router_id; | |
103 | } | |
104 | ||
105 | /* If AS-external-LSA is queued, then flush those LSAs. */ | |
68980084 | 106 | if (router_id_old.s_addr == 0 && ospf->external_origin) |
718e3744 | 107 | { |
108 | int type; | |
109 | /* Originate each redistributed external route. */ | |
110 | for (type = 0; type < ZEBRA_ROUTE_MAX; type++) | |
68980084 | 111 | if (ospf->external_origin & (1 << type)) |
718e3744 | 112 | thread_add_event (master, ospf_external_lsa_originate_timer, |
68980084 | 113 | ospf, type); |
718e3744 | 114 | /* Originate Deafult. */ |
68980084 | 115 | if (ospf->external_origin & (1 << ZEBRA_ROUTE_MAX)) |
718e3744 | 116 | thread_add_event (master, ospf_default_originate_timer, |
68980084 | 117 | &ospf->default_originate, 0); |
718e3744 | 118 | |
68980084 | 119 | ospf->external_origin = 0; |
718e3744 | 120 | } |
121 | ||
68980084 | 122 | OSPF_TIMER_ON (ospf->t_router_lsa_update, |
718e3744 | 123 | ospf_router_lsa_update_timer, OSPF_LSA_UPDATE_DELAY); |
124 | } | |
125 | } | |
126 | ||
127 | int | |
128 | ospf_router_id_update_timer (struct thread *thread) | |
129 | { | |
020709f9 | 130 | struct ospf *ospf = THREAD_ARG (thread); |
68980084 | 131 | |
718e3744 | 132 | if (IS_DEBUG_OSPF_EVENT) |
9b0e25c0 | 133 | zlog_debug ("Router-ID: Update timer fired!"); |
718e3744 | 134 | |
68980084 | 135 | ospf->t_router_id_update = NULL; |
136 | ospf_router_id_update (ospf); | |
718e3744 | 137 | |
138 | return 0; | |
139 | } | |
140 | \f | |
141 | /* For OSPF area sort by area id. */ | |
142 | int | |
143 | ospf_area_id_cmp (struct ospf_area *a1, struct ospf_area *a2) | |
144 | { | |
145 | if (ntohl (a1->area_id.s_addr) > ntohl (a2->area_id.s_addr)) | |
146 | return 1; | |
147 | if (ntohl (a1->area_id.s_addr) < ntohl (a2->area_id.s_addr)) | |
148 | return -1; | |
149 | return 0; | |
150 | } | |
151 | ||
152 | /* Allocate new ospf structure. */ | |
153 | struct ospf * | |
154 | ospf_new () | |
155 | { | |
156 | int i; | |
157 | ||
158 | struct ospf *new = XCALLOC (MTYPE_OSPF_TOP, sizeof (struct ospf)); | |
159 | ||
160 | new->router_id.s_addr = htonl (0); | |
161 | new->router_id_static.s_addr = htonl (0); | |
162 | ||
163 | new->abr_type = OSPF_ABR_STAND; | |
718e3744 | 164 | new->oiflist = list_new (); |
165 | new->vlinks = list_new (); | |
166 | new->areas = list_new (); | |
167 | new->areas->cmp = (int (*)(void *, void *)) ospf_area_id_cmp; | |
168 | new->networks = route_table_init (); | |
169 | new->nbr_nbma = route_table_init (); | |
170 | ||
171 | new->lsdb = ospf_lsdb_new (); | |
172 | ||
173 | new->default_originate = DEFAULT_ORIGINATE_NONE; | |
174 | ||
175 | new->new_external_route = route_table_init (); | |
176 | new->old_external_route = route_table_init (); | |
177 | new->external_lsas = route_table_init (); | |
178 | ||
179 | /* Distribute parameter init. */ | |
180 | for (i = 0; i <= ZEBRA_ROUTE_MAX; i++) | |
181 | { | |
182 | new->dmetric[i].type = -1; | |
183 | new->dmetric[i].value = -1; | |
184 | } | |
185 | new->default_metric = -1; | |
186 | new->ref_bandwidth = OSPF_DEFAULT_REF_BANDWIDTH; | |
187 | ||
188 | /* SPF timer value init. */ | |
189 | new->spf_delay = OSPF_SPF_DELAY_DEFAULT; | |
190 | new->spf_holdtime = OSPF_SPF_HOLDTIME_DEFAULT; | |
191 | ||
192 | /* MaxAge init. */ | |
193 | new->maxage_lsa = list_new (); | |
194 | new->t_maxage_walker = | |
195 | thread_add_timer (master, ospf_lsa_maxage_walker, | |
68980084 | 196 | new, OSPF_LSA_MAXAGE_CHECK_INTERVAL); |
718e3744 | 197 | |
198 | /* Distance table init. */ | |
199 | new->distance_table = route_table_init (); | |
200 | ||
201 | new->lsa_refresh_queue.index = 0; | |
202 | new->lsa_refresh_interval = OSPF_LSA_REFRESH_INTERVAL_DEFAULT; | |
203 | new->t_lsa_refresher = thread_add_timer (master, ospf_lsa_refresh_walker, | |
204 | new, new->lsa_refresh_interval); | |
205 | new->lsa_refresher_started = time (NULL); | |
206 | ||
207 | new->fd = ospf_sock_init (); | |
208 | if (new->fd >= 0) | |
209 | new->t_read = thread_add_read (master, ospf_read, new, new->fd); | |
210 | new->oi_write_q = list_new (); | |
211 | ||
212 | return new; | |
213 | } | |
214 | ||
215 | struct ospf * | |
020709f9 | 216 | ospf_lookup () |
718e3744 | 217 | { |
020709f9 | 218 | if (listcount (om->ospf) == 0) |
219 | return NULL; | |
718e3744 | 220 | |
020709f9 | 221 | return getdata (listhead (om->ospf)); |
222 | } | |
223 | ||
224 | void | |
225 | ospf_add (struct ospf *ospf) | |
226 | { | |
227 | listnode_add (om->ospf, ospf); | |
228 | } | |
718e3744 | 229 | |
020709f9 | 230 | void |
231 | ospf_delete (struct ospf *ospf) | |
232 | { | |
233 | listnode_delete (om->ospf, ospf); | |
234 | } | |
68980084 | 235 | |
020709f9 | 236 | struct ospf * |
237 | ospf_get () | |
238 | { | |
239 | struct ospf *ospf; | |
240 | ||
241 | ospf = ospf_lookup (); | |
242 | if (ospf == NULL) | |
243 | { | |
244 | ospf = ospf_new (); | |
245 | ospf_add (ospf); | |
246 | ||
247 | if (ospf->router_id_static.s_addr == 0) | |
248 | ospf_router_id_update (ospf); | |
718e3744 | 249 | |
250 | #ifdef HAVE_OPAQUE_LSA | |
020709f9 | 251 | ospf_opaque_type11_lsa_init (ospf); |
718e3744 | 252 | #endif /* HAVE_OPAQUE_LSA */ |
020709f9 | 253 | } |
68980084 | 254 | |
255 | return ospf; | |
718e3744 | 256 | } |
257 | ||
258 | void | |
259 | ospf_finish (struct ospf *ospf) | |
260 | { | |
261 | struct route_node *rn; | |
262 | struct ospf_nbr_nbma *nbr_nbma; | |
68980084 | 263 | struct ospf_lsa *lsa; |
52dc7ee6 | 264 | struct listnode *node; |
718e3744 | 265 | int i; |
266 | ||
267 | #ifdef HAVE_OPAQUE_LSA | |
268 | ospf_opaque_type11_lsa_term (ospf); | |
269 | #endif /* HAVE_OPAQUE_LSA */ | |
270 | ||
271 | /* Unredister redistribution */ | |
272 | for (i = 0; i < ZEBRA_ROUTE_MAX; i++) | |
020709f9 | 273 | ospf_redistribute_unset (ospf, i); |
718e3744 | 274 | |
275 | for (node = listhead (ospf->areas); node;) | |
276 | { | |
277 | struct ospf_area *area = getdata (node); | |
278 | nextnode (node); | |
279 | ||
68980084 | 280 | ospf_remove_vls_through_area (ospf, area); |
718e3744 | 281 | } |
282 | ||
283 | for (node = listhead (ospf->vlinks); node; ) | |
284 | { | |
285 | struct ospf_vl_data *vl_data = node->data; | |
286 | nextnode (node); | |
287 | ||
68980084 | 288 | ospf_vl_delete (ospf, vl_data); |
718e3744 | 289 | } |
290 | ||
291 | list_delete (ospf->vlinks); | |
292 | ||
293 | /* Reset interface. */ | |
294 | for (node = listhead (ospf->oiflist); node;) | |
295 | { | |
296 | struct ospf_interface *oi = getdata (node); | |
297 | nextnode (node); | |
298 | ||
299 | if (oi) | |
300 | ospf_if_free (oi); | |
301 | } | |
302 | ||
303 | /* Clear static neighbors */ | |
304 | for (rn = route_top (ospf->nbr_nbma); rn; rn = route_next (rn)) | |
305 | if ((nbr_nbma = rn->info)) | |
306 | { | |
307 | OSPF_POLL_TIMER_OFF (nbr_nbma->t_poll); | |
308 | ||
309 | if (nbr_nbma->nbr) | |
310 | { | |
311 | nbr_nbma->nbr->nbr_nbma = NULL; | |
312 | nbr_nbma->nbr = NULL; | |
313 | } | |
314 | ||
315 | if (nbr_nbma->oi) | |
316 | { | |
317 | listnode_delete (nbr_nbma->oi->nbr_nbma, nbr_nbma); | |
318 | nbr_nbma->oi = NULL; | |
319 | } | |
320 | ||
321 | XFREE (MTYPE_OSPF_NEIGHBOR_STATIC, nbr_nbma); | |
322 | } | |
323 | ||
324 | route_table_finish (ospf->nbr_nbma); | |
325 | ||
326 | /* Clear networks and Areas. */ | |
327 | for (rn = route_top (ospf->networks); rn; rn = route_next (rn)) | |
328 | { | |
329 | struct ospf_network *network; | |
330 | ||
331 | if ((network = rn->info) != NULL) | |
332 | { | |
68980084 | 333 | ospf_network_free (ospf, network); |
718e3744 | 334 | rn->info = NULL; |
335 | route_unlock_node (rn); | |
336 | } | |
337 | } | |
338 | ||
339 | for (node = listhead (ospf->areas); node;) | |
340 | { | |
341 | struct ospf_area *area = getdata (node); | |
342 | nextnode (node); | |
343 | ||
344 | listnode_delete (ospf->areas, area); | |
345 | ospf_area_free (area); | |
346 | } | |
347 | ||
348 | /* Cancel all timers. */ | |
349 | OSPF_TIMER_OFF (ospf->t_external_lsa); | |
350 | OSPF_TIMER_OFF (ospf->t_router_id_update); | |
351 | OSPF_TIMER_OFF (ospf->t_router_lsa_update); | |
352 | OSPF_TIMER_OFF (ospf->t_spf_calc); | |
353 | OSPF_TIMER_OFF (ospf->t_ase_calc); | |
354 | OSPF_TIMER_OFF (ospf->t_maxage); | |
355 | OSPF_TIMER_OFF (ospf->t_maxage_walker); | |
356 | OSPF_TIMER_OFF (ospf->t_abr_task); | |
357 | OSPF_TIMER_OFF (ospf->t_distribute_update); | |
358 | OSPF_TIMER_OFF (ospf->t_lsa_refresher); | |
359 | OSPF_TIMER_OFF (ospf->t_read); | |
360 | OSPF_TIMER_OFF (ospf->t_write); | |
361 | ||
362 | close (ospf->fd); | |
363 | ||
364 | #ifdef HAVE_OPAQUE_LSA | |
68980084 | 365 | LSDB_LOOP (OPAQUE_AS_LSDB (ospf), rn, lsa) |
366 | ospf_discard_from_db (ospf, ospf->lsdb, lsa); | |
718e3744 | 367 | #endif /* HAVE_OPAQUE_LSA */ |
68980084 | 368 | LSDB_LOOP (EXTERNAL_LSDB (ospf), rn, lsa) |
369 | ospf_discard_from_db (ospf, ospf->lsdb, lsa); | |
370 | ||
718e3744 | 371 | ospf_lsdb_delete_all (ospf->lsdb); |
372 | ospf_lsdb_free (ospf->lsdb); | |
373 | ||
374 | for (node = listhead (ospf->maxage_lsa); node; nextnode (node)) | |
375 | ospf_lsa_unlock (getdata (node)); | |
376 | ||
377 | list_delete (ospf->maxage_lsa); | |
378 | ||
379 | if (ospf->old_table) | |
380 | ospf_route_table_free (ospf->old_table); | |
381 | if (ospf->new_table) | |
382 | { | |
383 | ospf_route_delete (ospf->new_table); | |
384 | ospf_route_table_free (ospf->new_table); | |
385 | } | |
386 | if (ospf->old_rtrs) | |
387 | ospf_rtrs_free (ospf->old_rtrs); | |
388 | if (ospf->new_rtrs) | |
389 | ospf_rtrs_free (ospf->new_rtrs); | |
390 | if (ospf->new_external_route) | |
391 | { | |
392 | ospf_route_delete (ospf->new_external_route); | |
393 | ospf_route_table_free (ospf->new_external_route); | |
394 | } | |
395 | if (ospf->old_external_route) | |
396 | { | |
397 | ospf_route_delete (ospf->old_external_route); | |
398 | ospf_route_table_free (ospf->old_external_route); | |
399 | } | |
400 | if (ospf->external_lsas) | |
401 | { | |
402 | ospf_ase_external_lsas_finish (ospf->external_lsas); | |
403 | } | |
404 | ||
405 | list_delete (ospf->areas); | |
406 | ||
407 | for (i = ZEBRA_ROUTE_SYSTEM; i <= ZEBRA_ROUTE_MAX; i++) | |
408 | if (EXTERNAL_INFO (i) != NULL) | |
409 | for (rn = route_top (EXTERNAL_INFO (i)); rn; rn = route_next (rn)) | |
410 | { | |
411 | if (rn->info == NULL) | |
412 | continue; | |
413 | ||
414 | XFREE (MTYPE_OSPF_EXTERNAL_INFO, rn->info); | |
415 | rn->info = NULL; | |
416 | route_unlock_node (rn); | |
417 | } | |
418 | ||
68980084 | 419 | ospf_distance_reset (ospf); |
718e3744 | 420 | route_table_finish (ospf->distance_table); |
421 | ||
020709f9 | 422 | ospf_delete (ospf); |
718e3744 | 423 | |
020709f9 | 424 | XFREE (MTYPE_OSPF_TOP, ospf); |
718e3744 | 425 | } |
426 | ||
427 | \f | |
428 | /* allocate new OSPF Area object */ | |
429 | struct ospf_area * | |
68980084 | 430 | ospf_area_new (struct ospf *ospf, struct in_addr area_id) |
718e3744 | 431 | { |
432 | struct ospf_area *new; | |
433 | ||
434 | /* Allocate new config_network. */ | |
435 | new = XCALLOC (MTYPE_OSPF_AREA, sizeof (struct ospf_area)); | |
436 | ||
68980084 | 437 | new->ospf = ospf; |
718e3744 | 438 | |
439 | new->area_id = area_id; | |
440 | ||
441 | new->external_routing = OSPF_AREA_DEFAULT; | |
442 | new->default_cost = 1; | |
443 | new->auth_type = OSPF_AUTH_NULL; | |
444 | ||
445 | /* New LSDB init. */ | |
446 | new->lsdb = ospf_lsdb_new (); | |
447 | ||
448 | /* Self-originated LSAs initialize. */ | |
449 | new->router_lsa_self = NULL; | |
450 | ||
451 | #ifdef HAVE_OPAQUE_LSA | |
452 | ospf_opaque_type10_lsa_init (new); | |
453 | #endif /* HAVE_OPAQUE_LSA */ | |
454 | ||
455 | new->oiflist = list_new (); | |
456 | new->ranges = route_table_init (); | |
457 | ||
458 | if (area_id.s_addr == OSPF_AREA_BACKBONE) | |
68980084 | 459 | ospf->backbone = new; |
718e3744 | 460 | |
461 | return new; | |
462 | } | |
463 | ||
464 | void | |
465 | ospf_area_free (struct ospf_area *area) | |
466 | { | |
68980084 | 467 | struct route_node *rn; |
468 | struct ospf_lsa *lsa; | |
469 | ||
718e3744 | 470 | /* Free LSDBs. */ |
68980084 | 471 | LSDB_LOOP (ROUTER_LSDB (area), rn, lsa) |
472 | ospf_discard_from_db (area->ospf, area->lsdb, lsa); | |
473 | LSDB_LOOP (NETWORK_LSDB (area), rn, lsa) | |
474 | ospf_discard_from_db (area->ospf, area->lsdb, lsa); | |
475 | LSDB_LOOP (SUMMARY_LSDB (area), rn, lsa) | |
476 | ospf_discard_from_db (area->ospf, area->lsdb, lsa); | |
477 | LSDB_LOOP (ASBR_SUMMARY_LSDB (area), rn, lsa) | |
478 | ospf_discard_from_db (area->ospf, area->lsdb, lsa); | |
718e3744 | 479 | |
68980084 | 480 | LSDB_LOOP (NSSA_LSDB (area), rn, lsa) |
481 | ospf_discard_from_db (area->ospf, area->lsdb, lsa); | |
718e3744 | 482 | #ifdef HAVE_OPAQUE_LSA |
68980084 | 483 | LSDB_LOOP (OPAQUE_AREA_LSDB (area), rn, lsa) |
484 | ospf_discard_from_db (area->ospf, area->lsdb, lsa); | |
485 | LSDB_LOOP (OPAQUE_LINK_LSDB (area), rn, lsa) | |
486 | ospf_discard_from_db (area->ospf, area->lsdb, lsa); | |
718e3744 | 487 | #endif /* HAVE_OPAQUE_LSA */ |
488 | ||
489 | ospf_lsdb_delete_all (area->lsdb); | |
490 | ospf_lsdb_free (area->lsdb); | |
491 | ||
718e3744 | 492 | ospf_lsa_unlock (area->router_lsa_self); |
493 | ||
494 | route_table_finish (area->ranges); | |
495 | list_delete (area->oiflist); | |
496 | ||
497 | if (EXPORT_NAME (area)) | |
498 | free (EXPORT_NAME (area)); | |
499 | ||
500 | if (IMPORT_NAME (area)) | |
501 | free (IMPORT_NAME (area)); | |
502 | ||
503 | /* Cancel timer. */ | |
504 | OSPF_TIMER_OFF (area->t_router_lsa_self); | |
505 | ||
506 | if (OSPF_IS_AREA_BACKBONE (area)) | |
68980084 | 507 | area->ospf->backbone = NULL; |
718e3744 | 508 | |
509 | XFREE (MTYPE_OSPF_AREA, area); | |
510 | } | |
511 | ||
512 | void | |
68980084 | 513 | ospf_area_check_free (struct ospf *ospf, struct in_addr area_id) |
718e3744 | 514 | { |
515 | struct ospf_area *area; | |
516 | ||
68980084 | 517 | area = ospf_area_lookup_by_area_id (ospf, area_id); |
718e3744 | 518 | if (area && |
519 | listcount (area->oiflist) == 0 && | |
520 | area->ranges->top == NULL && | |
521 | area->shortcut_configured == OSPF_SHORTCUT_DEFAULT && | |
522 | area->external_routing == OSPF_AREA_DEFAULT && | |
523 | area->no_summary == 0 && | |
524 | area->default_cost == 1 && | |
525 | EXPORT_NAME (area) == NULL && | |
526 | IMPORT_NAME (area) == NULL && | |
527 | area->auth_type == OSPF_AUTH_NULL) | |
528 | { | |
68980084 | 529 | listnode_delete (ospf->areas, area); |
718e3744 | 530 | ospf_area_free (area); |
531 | } | |
532 | } | |
533 | ||
534 | struct ospf_area * | |
68980084 | 535 | ospf_area_get (struct ospf *ospf, struct in_addr area_id, int format) |
718e3744 | 536 | { |
537 | struct ospf_area *area; | |
538 | ||
68980084 | 539 | area = ospf_area_lookup_by_area_id (ospf, area_id); |
718e3744 | 540 | if (!area) |
541 | { | |
68980084 | 542 | area = ospf_area_new (ospf, area_id); |
718e3744 | 543 | area->format = format; |
68980084 | 544 | listnode_add_sort (ospf->areas, area); |
545 | ospf_check_abr_status (ospf); | |
718e3744 | 546 | } |
547 | ||
548 | return area; | |
549 | } | |
550 | ||
551 | struct ospf_area * | |
68980084 | 552 | ospf_area_lookup_by_area_id (struct ospf *ospf, struct in_addr area_id) |
718e3744 | 553 | { |
554 | struct ospf_area *area; | |
52dc7ee6 | 555 | struct listnode *node; |
718e3744 | 556 | |
68980084 | 557 | for (node = listhead (ospf->areas); node; nextnode (node)) |
718e3744 | 558 | { |
559 | area = getdata (node); | |
560 | ||
561 | if (IPV4_ADDR_SAME (&area->area_id, &area_id)) | |
562 | return area; | |
563 | } | |
564 | ||
565 | return NULL; | |
566 | } | |
567 | ||
568 | void | |
569 | ospf_area_add_if (struct ospf_area *area, struct ospf_interface *oi) | |
570 | { | |
571 | listnode_add (area->oiflist, oi); | |
572 | } | |
573 | ||
574 | void | |
575 | ospf_area_del_if (struct ospf_area *area, struct ospf_interface *oi) | |
576 | { | |
577 | listnode_delete (area->oiflist, oi); | |
578 | } | |
579 | ||
580 | \f | |
581 | /* Config network statement related functions. */ | |
582 | struct ospf_network * | |
583 | ospf_network_new (struct in_addr area_id, int format) | |
584 | { | |
585 | struct ospf_network *new; | |
586 | new = XCALLOC (MTYPE_OSPF_NETWORK, sizeof (struct ospf_network)); | |
587 | ||
588 | new->area_id = area_id; | |
589 | new->format = format; | |
590 | ||
591 | return new; | |
592 | } | |
593 | ||
594 | void | |
68980084 | 595 | ospf_network_free (struct ospf *ospf, struct ospf_network *network) |
718e3744 | 596 | { |
68980084 | 597 | ospf_area_check_free (ospf, network->area_id); |
598 | ospf_schedule_abr_task (ospf); | |
718e3744 | 599 | XFREE (MTYPE_OSPF_NETWORK, network); |
600 | } | |
601 | ||
602 | int | |
603 | ospf_network_set (struct ospf *ospf, struct prefix_ipv4 *p, | |
604 | struct in_addr area_id) | |
605 | { | |
606 | struct ospf_network *network; | |
607 | struct ospf_area *area; | |
608 | struct route_node *rn; | |
609 | struct external_info *ei; | |
147193a2 | 610 | int ret = OSPF_AREA_ID_FORMAT_ADDRESS; |
718e3744 | 611 | |
612 | rn = route_node_get (ospf->networks, (struct prefix *)p); | |
613 | if (rn->info) | |
614 | { | |
615 | /* There is already same network statement. */ | |
616 | route_unlock_node (rn); | |
617 | return 0; | |
618 | } | |
619 | ||
620 | rn->info = network = ospf_network_new (area_id, ret); | |
68980084 | 621 | area = ospf_area_get (ospf, area_id, ret); |
718e3744 | 622 | |
623 | /* Run network config now. */ | |
624 | ospf_network_run (ospf, (struct prefix *)p, area); | |
625 | ||
626 | /* Update connected redistribute. */ | |
627 | if (ospf_is_type_redistributed (ZEBRA_ROUTE_CONNECT)) | |
628 | if (EXTERNAL_INFO (ZEBRA_ROUTE_CONNECT)) | |
629 | for (rn = route_top (EXTERNAL_INFO (ZEBRA_ROUTE_CONNECT)); | |
630 | rn; rn = route_next (rn)) | |
631 | if ((ei = rn->info) != NULL) | |
68980084 | 632 | if (ospf_external_info_find_lsa (ospf, &ei->p)) |
633 | if (!ospf_distribute_check_connected (ospf, ei)) | |
634 | ospf_external_lsa_flush (ospf, ei->type, &ei->p, | |
718e3744 | 635 | ei->ifindex, ei->nexthop); |
636 | ||
68980084 | 637 | ospf_area_check_free (ospf, area_id); |
718e3744 | 638 | |
639 | return 1; | |
640 | } | |
641 | ||
642 | int | |
643 | ospf_network_unset (struct ospf *ospf, struct prefix_ipv4 *p, | |
644 | struct in_addr area_id) | |
645 | { | |
646 | struct route_node *rn; | |
647 | struct ospf_network *network; | |
648 | struct external_info *ei; | |
649 | ||
650 | rn = route_node_lookup (ospf->networks, (struct prefix *)p); | |
651 | if (rn == NULL) | |
652 | return 0; | |
653 | ||
654 | network = rn->info; | |
655 | if (!IPV4_ADDR_SAME (&area_id, &network->area_id)) | |
656 | return 0; | |
657 | ||
68980084 | 658 | ospf_network_free (ospf, rn->info); |
718e3744 | 659 | rn->info = NULL; |
660 | route_unlock_node (rn); | |
661 | ||
68980084 | 662 | ospf_if_update (ospf); |
718e3744 | 663 | |
664 | /* Update connected redistribute. */ | |
665 | if (ospf_is_type_redistributed (ZEBRA_ROUTE_CONNECT)) | |
666 | if (EXTERNAL_INFO (ZEBRA_ROUTE_CONNECT)) | |
667 | for (rn = route_top (EXTERNAL_INFO (ZEBRA_ROUTE_CONNECT)); | |
668 | rn; rn = route_next (rn)) | |
669 | if ((ei = rn->info) != NULL) | |
68980084 | 670 | if (!ospf_external_info_find_lsa (ospf, &ei->p)) |
671 | if (ospf_distribute_check_connected (ospf, ei)) | |
672 | ospf_external_lsa_originate (ospf, ei); | |
718e3744 | 673 | |
674 | return 1; | |
675 | } | |
676 | ||
570f7598 | 677 | /* Check whether interface matches given network |
678 | * returns: 1, true. 0, false | |
679 | */ | |
680 | int | |
681 | ospf_network_match_iface(struct connected *co, struct prefix *net) | |
682 | { | |
683 | /* Behaviour to match both Cisco where: | |
684 | * iface address lies within network specified -> ospf | |
685 | * and zebra 0.9[2ish-3]: | |
686 | * PtP special case: network specified == iface peer addr -> ospf | |
687 | */ | |
8f40e891 | 688 | |
f3ae74cd | 689 | /* For PtP, match if peer address matches network address exactly. |
690 | * This can be addr/32 or addr/p for p < 32, but the addr must match | |
691 | * exactly; this is not a test for falling within the prefix. This | |
8f40e891 | 692 | * test is solely for compatibility with zebra. |
8f40e891 | 693 | */ |
f3ae74cd | 694 | if (if_is_pointopoint (co->ifp) && co->destination && |
695 | IPV4_ADDR_SAME ( &(co->destination->u.prefix4), &(net->u.prefix4))) | |
696 | return 1; | |
697 | ||
698 | #if 0 | |
699 | /* Decline to accept PtP if dst address does not match the | |
700 | * prefix. (ifdefed out because this is a workaround, not the | |
701 | * desired behavior.) */ | |
702 | if (if_is_pointopoint (co->ifp) && | |
703 | ! prefix_match (net, co->destination)) | |
704 | return 0; | |
705 | #endif | |
706 | ||
707 | /* If the address is within the prefix, accept. Note that this | |
708 | * applies to PtP as well as other types. | |
709 | */ | |
710 | if (prefix_match (net, co->address)) | |
711 | return 1; | |
712 | ||
713 | return 0; /* no match */ | |
570f7598 | 714 | } |
715 | ||
718e3744 | 716 | void |
717 | ospf_network_run (struct ospf *ospf, struct prefix *p, struct ospf_area *area) | |
718 | { | |
719 | struct interface *ifp; | |
52dc7ee6 | 720 | struct listnode *node; |
718e3744 | 721 | |
722 | /* Schedule Router ID Update. */ | |
723 | if (ospf->router_id_static.s_addr == 0) | |
724 | if (ospf->t_router_id_update == NULL) | |
725 | { | |
020709f9 | 726 | OSPF_TIMER_ON (ospf->t_router_id_update, ospf_router_id_update_timer, |
727 | OSPF_ROUTER_ID_UPDATE_DELAY); | |
718e3744 | 728 | } |
729 | ||
730 | /* Get target interface. */ | |
020709f9 | 731 | for (node = listhead (om->iflist); node; nextnode (node)) |
718e3744 | 732 | { |
52dc7ee6 | 733 | struct listnode *cn; |
718e3744 | 734 | |
735 | if ((ifp = getdata (node)) == NULL) | |
736 | continue; | |
737 | ||
738 | if (memcmp (ifp->name, "VLINK", 5) == 0) | |
739 | continue; | |
740 | ||
741 | /* if interface prefix is match specified prefix, | |
742 | then create socket and join multicast group. */ | |
743 | for (cn = listhead (ifp->connected); cn; nextnode (cn)) | |
744 | { | |
745 | struct connected *co = getdata (cn); | |
746 | struct prefix *addr; | |
800dc105 | 747 | |
e7b050cb | 748 | if (CHECK_FLAG(co->flags,ZEBRA_IFA_SECONDARY)) |
749 | continue; | |
718e3744 | 750 | |
3fb9cd6e | 751 | if (CONNECTED_POINTOPOINT_HOST(co)) |
718e3744 | 752 | addr = co->destination; |
753 | else | |
754 | addr = co->address; | |
755 | ||
cb3f37d2 | 756 | if (p->family == co->address->family |
68980084 | 757 | && ! ospf_if_is_configured (ospf, &(addr->u.prefix4)) |
cb3f37d2 | 758 | && ospf_network_match_iface(co,p)) |
570f7598 | 759 | { |
537d8ea9 | 760 | struct ospf_interface *oi; |
718e3744 | 761 | |
68980084 | 762 | oi = ospf_if_new (ospf, ifp, co->address); |
718e3744 | 763 | oi->connected = co; |
764 | ||
765 | oi->nbr_self->address = *oi->address; | |
766 | ||
718e3744 | 767 | oi->area = area; |
768 | ||
769 | oi->params = ospf_lookup_if_params (ifp, oi->address->u.prefix4); | |
770 | oi->output_cost = ospf_if_get_output_cost (oi); | |
771 | ||
772 | if (area->external_routing != OSPF_AREA_DEFAULT) | |
773 | UNSET_FLAG (oi->nbr_self->options, OSPF_OPTION_E); | |
774 | oi->nbr_self->priority = OSPF_IF_PARAM (oi, priority); | |
775 | ||
776 | /* Add pseudo neighbor. */ | |
777 | ospf_nbr_add_self (oi); | |
778 | ||
779 | /* Make sure pseudo neighbor's router_id. */ | |
68980084 | 780 | oi->nbr_self->router_id = ospf->router_id; |
718e3744 | 781 | oi->nbr_self->src = oi->address->u.prefix4; |
782 | ||
783 | /* Relate ospf interface to ospf instance. */ | |
68980084 | 784 | oi->ospf = ospf; |
718e3744 | 785 | |
786 | /* update network type as interface flag */ | |
787 | /* If network type is specified previously, | |
788 | skip network type setting. */ | |
789 | oi->type = IF_DEF_PARAMS (ifp)->type; | |
790 | ||
791 | /* Set area flag. */ | |
792 | switch (area->external_routing) | |
793 | { | |
794 | case OSPF_AREA_DEFAULT: | |
795 | SET_FLAG (oi->nbr_self->options, OSPF_OPTION_E); | |
796 | break; | |
797 | case OSPF_AREA_STUB: | |
798 | UNSET_FLAG (oi->nbr_self->options, OSPF_OPTION_E); | |
799 | break; | |
718e3744 | 800 | case OSPF_AREA_NSSA: |
801 | UNSET_FLAG (oi->nbr_self->options, OSPF_OPTION_E); | |
802 | SET_FLAG (oi->nbr_self->options, OSPF_OPTION_NP); | |
803 | break; | |
718e3744 | 804 | } |
805 | ||
806 | ospf_area_add_if (oi->area, oi); | |
807 | ||
2e3b2e47 | 808 | if (if_is_operative (ifp)) |
718e3744 | 809 | ospf_if_up (oi); |
810 | ||
811 | break; | |
812 | } | |
813 | } | |
814 | } | |
815 | } | |
816 | ||
817 | void | |
818 | ospf_ls_upd_queue_empty (struct ospf_interface *oi) | |
819 | { | |
820 | struct route_node *rn; | |
52dc7ee6 | 821 | struct listnode *node; |
822 | struct list *lst; | |
718e3744 | 823 | struct ospf_lsa *lsa; |
824 | ||
825 | /* empty ls update queue */ | |
826 | for (rn = route_top (oi->ls_upd_queue); rn; | |
827 | rn = route_next (rn)) | |
52dc7ee6 | 828 | if ((lst = (struct list *) rn->info)) |
718e3744 | 829 | { |
830 | for (node = listhead (lst); node; nextnode (node)) | |
831 | if ((lsa = getdata (node))) | |
832 | ospf_lsa_unlock (lsa); | |
833 | list_free (lst); | |
834 | rn->info = NULL; | |
835 | } | |
836 | ||
837 | /* remove update event */ | |
838 | if (oi->t_ls_upd_event) | |
839 | { | |
840 | thread_cancel (oi->t_ls_upd_event); | |
841 | oi->t_ls_upd_event = NULL; | |
842 | } | |
843 | } | |
844 | ||
845 | void | |
68980084 | 846 | ospf_if_update (struct ospf *ospf) |
718e3744 | 847 | { |
848 | struct route_node *rn; | |
52dc7ee6 | 849 | struct listnode *node; |
850 | struct listnode *next; | |
718e3744 | 851 | struct ospf_network *network; |
852 | struct ospf_area *area; | |
853 | ||
68980084 | 854 | if (ospf != NULL) |
718e3744 | 855 | { |
856 | /* Update Router ID scheduled. */ | |
68980084 | 857 | if (ospf->router_id_static.s_addr == 0) |
858 | if (ospf->t_router_id_update == NULL) | |
718e3744 | 859 | { |
020709f9 | 860 | OSPF_TIMER_ON (ospf->t_router_id_update, |
861 | ospf_router_id_update_timer, | |
862 | OSPF_ROUTER_ID_UPDATE_DELAY); | |
718e3744 | 863 | } |
864 | ||
865 | /* Find interfaces that not configured already. */ | |
68980084 | 866 | for (node = listhead (ospf->oiflist); node; node = next) |
718e3744 | 867 | { |
868 | int found = 0; | |
869 | struct ospf_interface *oi = getdata (node); | |
870 | struct connected *co = oi->connected; | |
871 | ||
872 | next = nextnode (node); | |
873 | ||
874 | if (oi->type == OSPF_IFTYPE_VIRTUALLINK) | |
875 | continue; | |
876 | ||
68980084 | 877 | for (rn = route_top (ospf->networks); rn; rn = route_next (rn)) |
718e3744 | 878 | { |
879 | if (rn->info == NULL) | |
880 | continue; | |
881 | ||
570f7598 | 882 | if (ospf_network_match_iface(co,&rn->p)) |
718e3744 | 883 | { |
884 | found = 1; | |
885 | route_unlock_node (rn); | |
886 | break; | |
887 | } | |
888 | } | |
889 | ||
890 | if (found == 0) | |
891 | ospf_if_free (oi); | |
892 | } | |
893 | ||
894 | /* Run each interface. */ | |
68980084 | 895 | for (rn = route_top (ospf->networks); rn; rn = route_next (rn)) |
718e3744 | 896 | if (rn->info != NULL) |
897 | { | |
898 | network = (struct ospf_network *) rn->info; | |
68980084 | 899 | area = ospf_area_get (ospf, network->area_id, network->format); |
900 | ospf_network_run (ospf, &rn->p, area); | |
718e3744 | 901 | } |
902 | } | |
903 | } | |
904 | ||
905 | void | |
68980084 | 906 | ospf_remove_vls_through_area (struct ospf *ospf, struct ospf_area *area) |
718e3744 | 907 | { |
52dc7ee6 | 908 | struct listnode *node, *next; |
718e3744 | 909 | struct ospf_vl_data *vl_data; |
910 | ||
68980084 | 911 | for (node = listhead (ospf->vlinks); node; node = next) |
718e3744 | 912 | { |
913 | next = node->next; | |
914 | if ((vl_data = getdata (node)) != NULL) | |
915 | if (IPV4_ADDR_SAME (&vl_data->vl_area_id, &area->area_id)) | |
68980084 | 916 | ospf_vl_delete (ospf, vl_data); |
718e3744 | 917 | } |
918 | } | |
919 | ||
920 | \f | |
921 | struct message ospf_area_type_msg[] = | |
922 | { | |
923 | { OSPF_AREA_DEFAULT, "Default" }, | |
924 | { OSPF_AREA_STUB, "Stub" }, | |
925 | { OSPF_AREA_NSSA, "NSSA" }, | |
926 | }; | |
927 | int ospf_area_type_msg_max = OSPF_AREA_TYPE_MAX; | |
928 | ||
929 | void | |
930 | ospf_area_type_set (struct ospf_area *area, int type) | |
931 | { | |
52dc7ee6 | 932 | struct listnode *node; |
718e3744 | 933 | struct ospf_interface *oi; |
934 | ||
935 | if (area->external_routing == type) | |
936 | { | |
937 | if (IS_DEBUG_OSPF_EVENT) | |
9b0e25c0 | 938 | zlog_debug ("Area[%s]: Types are the same, ignored.", |
718e3744 | 939 | inet_ntoa (area->area_id)); |
940 | return; | |
941 | } | |
942 | ||
943 | area->external_routing = type; | |
944 | ||
945 | if (IS_DEBUG_OSPF_EVENT) | |
9b0e25c0 | 946 | zlog_debug ("Area[%s]: Configured as %s", inet_ntoa (area->area_id), |
718e3744 | 947 | LOOKUP (ospf_area_type_msg, type)); |
948 | ||
949 | switch (area->external_routing) | |
950 | { | |
951 | case OSPF_AREA_DEFAULT: | |
952 | for (node = listhead (area->oiflist); node; nextnode (node)) | |
953 | if ((oi = getdata (node)) != NULL) | |
954 | if (oi->nbr_self != NULL) | |
8585d4e5 | 955 | { |
8585d4e5 | 956 | UNSET_FLAG (oi->nbr_self->options, OSPF_OPTION_NP); |
8585d4e5 | 957 | SET_FLAG (oi->nbr_self->options, OSPF_OPTION_E); |
958 | } | |
718e3744 | 959 | break; |
960 | case OSPF_AREA_STUB: | |
961 | for (node = listhead (area->oiflist); node; nextnode (node)) | |
962 | if ((oi = getdata (node)) != NULL) | |
963 | if (oi->nbr_self != NULL) | |
964 | { | |
965 | if (IS_DEBUG_OSPF_EVENT) | |
9b0e25c0 | 966 | zlog_debug ("setting options on %s accordingly", IF_NAME (oi)); |
8585d4e5 | 967 | UNSET_FLAG (oi->nbr_self->options, OSPF_OPTION_NP); |
718e3744 | 968 | UNSET_FLAG (oi->nbr_self->options, OSPF_OPTION_E); |
969 | if (IS_DEBUG_OSPF_EVENT) | |
9b0e25c0 | 970 | zlog_debug ("options set on %s: %x", |
718e3744 | 971 | IF_NAME (oi), OPTIONS (oi)); |
972 | } | |
973 | break; | |
974 | case OSPF_AREA_NSSA: | |
718e3744 | 975 | for (node = listhead (area->oiflist); node; nextnode (node)) |
976 | if ((oi = getdata (node)) != NULL) | |
977 | if (oi->nbr_self != NULL) | |
978 | { | |
9b0e25c0 | 979 | if (IS_DEBUG_OSPF_EVENT) |
980 | zlog_debug ("setting nssa options on %s accordingly", IF_NAME (oi)); | |
718e3744 | 981 | UNSET_FLAG (oi->nbr_self->options, OSPF_OPTION_E); |
982 | SET_FLAG (oi->nbr_self->options, OSPF_OPTION_NP); | |
9b0e25c0 | 983 | if (IS_DEBUG_OSPF_EVENT) |
984 | zlog_debug ("options set on %s: %x", IF_NAME (oi), OPTIONS (oi)); | |
718e3744 | 985 | } |
718e3744 | 986 | break; |
987 | default: | |
988 | break; | |
989 | } | |
990 | ||
991 | ospf_router_lsa_timer_add (area); | |
68980084 | 992 | ospf_schedule_abr_task (area->ospf); |
718e3744 | 993 | } |
994 | ||
995 | int | |
68980084 | 996 | ospf_area_shortcut_set (struct ospf *ospf, struct ospf_area *area, int mode) |
718e3744 | 997 | { |
998 | if (area->shortcut_configured == mode) | |
999 | return 0; | |
1000 | ||
1001 | area->shortcut_configured = mode; | |
1002 | ospf_router_lsa_timer_add (area); | |
68980084 | 1003 | ospf_schedule_abr_task (ospf); |
718e3744 | 1004 | |
68980084 | 1005 | ospf_area_check_free (ospf, area->area_id); |
718e3744 | 1006 | |
1007 | return 1; | |
1008 | } | |
1009 | ||
1010 | int | |
68980084 | 1011 | ospf_area_shortcut_unset (struct ospf *ospf, struct ospf_area *area) |
718e3744 | 1012 | { |
1013 | area->shortcut_configured = OSPF_SHORTCUT_DEFAULT; | |
1014 | ospf_router_lsa_timer_add (area); | |
68980084 | 1015 | ospf_area_check_free (ospf, area->area_id); |
1016 | ospf_schedule_abr_task (ospf); | |
718e3744 | 1017 | |
1018 | return 1; | |
1019 | } | |
1020 | ||
1021 | int | |
1022 | ospf_area_vlink_count (struct ospf *ospf, struct ospf_area *area) | |
1023 | { | |
1024 | struct ospf_vl_data *vl; | |
52dc7ee6 | 1025 | struct listnode *node; |
718e3744 | 1026 | int count = 0; |
1027 | ||
1028 | for (node = listhead (ospf->vlinks); node; nextnode (node)) | |
1029 | { | |
1030 | vl = getdata (node); | |
1031 | if (IPV4_ADDR_SAME (&vl->vl_area_id, &area->area_id)) | |
1032 | count++; | |
1033 | } | |
1034 | ||
1035 | return count; | |
1036 | } | |
1037 | ||
1038 | int | |
1039 | ospf_area_stub_set (struct ospf *ospf, struct in_addr area_id) | |
1040 | { | |
1041 | struct ospf_area *area; | |
147193a2 | 1042 | int format = OSPF_AREA_ID_FORMAT_ADDRESS; |
718e3744 | 1043 | |
68980084 | 1044 | area = ospf_area_get (ospf, area_id, format); |
718e3744 | 1045 | if (ospf_area_vlink_count (ospf, area)) |
1046 | return 0; | |
1047 | ||
1048 | if (area->external_routing != OSPF_AREA_STUB) | |
1049 | ospf_area_type_set (area, OSPF_AREA_STUB); | |
1050 | ||
1051 | return 1; | |
1052 | } | |
1053 | ||
1054 | int | |
1055 | ospf_area_stub_unset (struct ospf *ospf, struct in_addr area_id) | |
1056 | { | |
1057 | struct ospf_area *area; | |
1058 | ||
68980084 | 1059 | area = ospf_area_lookup_by_area_id (ospf, area_id); |
718e3744 | 1060 | if (area == NULL) |
1061 | return 1; | |
1062 | ||
1063 | if (area->external_routing == OSPF_AREA_STUB) | |
1064 | ospf_area_type_set (area, OSPF_AREA_DEFAULT); | |
1065 | ||
68980084 | 1066 | ospf_area_check_free (ospf, area_id); |
718e3744 | 1067 | |
1068 | return 1; | |
1069 | } | |
1070 | ||
1071 | int | |
1072 | ospf_area_no_summary_set (struct ospf *ospf, struct in_addr area_id) | |
1073 | { | |
1074 | struct ospf_area *area; | |
147193a2 | 1075 | int format = OSPF_AREA_ID_FORMAT_ADDRESS; |
718e3744 | 1076 | |
68980084 | 1077 | area = ospf_area_get (ospf, area_id, format); |
718e3744 | 1078 | area->no_summary = 1; |
1079 | ||
1080 | return 1; | |
1081 | } | |
1082 | ||
1083 | int | |
1084 | ospf_area_no_summary_unset (struct ospf *ospf, struct in_addr area_id) | |
1085 | { | |
1086 | struct ospf_area *area; | |
1087 | ||
68980084 | 1088 | area = ospf_area_lookup_by_area_id (ospf, area_id); |
718e3744 | 1089 | if (area == NULL) |
1090 | return 0; | |
1091 | ||
1092 | area->no_summary = 0; | |
68980084 | 1093 | ospf_area_check_free (ospf, area_id); |
718e3744 | 1094 | |
1095 | return 1; | |
1096 | } | |
1097 | ||
1098 | int | |
1099 | ospf_area_nssa_set (struct ospf *ospf, struct in_addr area_id) | |
1100 | { | |
1101 | struct ospf_area *area; | |
147193a2 | 1102 | int format = OSPF_AREA_ID_FORMAT_ADDRESS; |
718e3744 | 1103 | |
68980084 | 1104 | area = ospf_area_get (ospf, area_id, format); |
718e3744 | 1105 | if (ospf_area_vlink_count (ospf, area)) |
1106 | return 0; | |
1107 | ||
1108 | if (area->external_routing != OSPF_AREA_NSSA) | |
1109 | { | |
1110 | ospf_area_type_set (area, OSPF_AREA_NSSA); | |
1111 | ospf->anyNSSA++; | |
1112 | } | |
1113 | ||
084c7844 | 1114 | /* set NSSA area defaults */ |
1115 | area->no_summary = 0; | |
1116 | area->NSSATranslatorRole = OSPF_NSSA_ROLE_CANDIDATE; | |
d4a53d58 | 1117 | area->NSSATranslatorState = OSPF_NSSA_TRANSLATE_DISABLED; |
084c7844 | 1118 | area->NSSATranslatorStabilityInterval = OSPF_NSSA_TRANS_STABLE_DEFAULT; |
1119 | ||
718e3744 | 1120 | return 1; |
1121 | } | |
1122 | ||
1123 | int | |
1124 | ospf_area_nssa_unset (struct ospf *ospf, struct in_addr area_id) | |
1125 | { | |
1126 | struct ospf_area *area; | |
1127 | ||
68980084 | 1128 | area = ospf_area_lookup_by_area_id (ospf, area_id); |
718e3744 | 1129 | if (area == NULL) |
1130 | return 0; | |
1131 | ||
1132 | if (area->external_routing == OSPF_AREA_NSSA) | |
1133 | { | |
1134 | ospf->anyNSSA--; | |
1135 | ospf_area_type_set (area, OSPF_AREA_DEFAULT); | |
1136 | } | |
1137 | ||
68980084 | 1138 | ospf_area_check_free (ospf, area_id); |
718e3744 | 1139 | |
1140 | return 1; | |
1141 | } | |
1142 | ||
1143 | int | |
1144 | ospf_area_nssa_translator_role_set (struct ospf *ospf, struct in_addr area_id, | |
1145 | int role) | |
1146 | { | |
1147 | struct ospf_area *area; | |
1148 | ||
68980084 | 1149 | area = ospf_area_lookup_by_area_id (ospf, area_id); |
718e3744 | 1150 | if (area == NULL) |
1151 | return 0; | |
1152 | ||
084c7844 | 1153 | area->NSSATranslatorRole = role; |
718e3744 | 1154 | |
1155 | return 1; | |
1156 | } | |
1157 | ||
1158 | int | |
1159 | ospf_area_nssa_translator_role_unset (struct ospf *ospf, | |
1160 | struct in_addr area_id) | |
1161 | { | |
1162 | struct ospf_area *area; | |
1163 | ||
68980084 | 1164 | area = ospf_area_lookup_by_area_id (ospf, area_id); |
718e3744 | 1165 | if (area == NULL) |
1166 | return 0; | |
1167 | ||
084c7844 | 1168 | area->NSSATranslatorRole = OSPF_NSSA_ROLE_CANDIDATE; |
718e3744 | 1169 | |
68980084 | 1170 | ospf_area_check_free (ospf, area_id); |
718e3744 | 1171 | |
1172 | return 1; | |
1173 | } | |
1174 | ||
1175 | int | |
68980084 | 1176 | ospf_area_export_list_set (struct ospf *ospf, |
6c835671 | 1177 | struct ospf_area *area, const char *list_name) |
718e3744 | 1178 | { |
1179 | struct access_list *list; | |
1180 | list = access_list_lookup (AFI_IP, list_name); | |
1181 | ||
1182 | EXPORT_LIST (area) = list; | |
1183 | ||
1184 | if (EXPORT_NAME (area)) | |
1185 | free (EXPORT_NAME (area)); | |
1186 | ||
1187 | EXPORT_NAME (area) = strdup (list_name); | |
68980084 | 1188 | ospf_schedule_abr_task (ospf); |
718e3744 | 1189 | |
1190 | return 1; | |
1191 | } | |
1192 | ||
1193 | int | |
68980084 | 1194 | ospf_area_export_list_unset (struct ospf *ospf, struct ospf_area * area) |
718e3744 | 1195 | { |
1196 | ||
1197 | EXPORT_LIST (area) = 0; | |
1198 | ||
1199 | if (EXPORT_NAME (area)) | |
1200 | free (EXPORT_NAME (area)); | |
1201 | ||
1202 | EXPORT_NAME (area) = NULL; | |
1203 | ||
68980084 | 1204 | ospf_area_check_free (ospf, area->area_id); |
718e3744 | 1205 | |
68980084 | 1206 | ospf_schedule_abr_task (ospf); |
718e3744 | 1207 | |
1208 | return 1; | |
1209 | } | |
1210 | ||
1211 | int | |
6c835671 | 1212 | ospf_area_import_list_set (struct ospf *ospf, struct ospf_area *area, |
1213 | const char *name) | |
718e3744 | 1214 | { |
1215 | struct access_list *list; | |
1216 | list = access_list_lookup (AFI_IP, name); | |
1217 | ||
1218 | IMPORT_LIST (area) = list; | |
1219 | ||
1220 | if (IMPORT_NAME (area)) | |
1221 | free (IMPORT_NAME (area)); | |
1222 | ||
1223 | IMPORT_NAME (area) = strdup (name); | |
68980084 | 1224 | ospf_schedule_abr_task (ospf); |
718e3744 | 1225 | |
1226 | return 1; | |
1227 | } | |
1228 | ||
1229 | int | |
68980084 | 1230 | ospf_area_import_list_unset (struct ospf *ospf, struct ospf_area * area) |
718e3744 | 1231 | { |
1232 | IMPORT_LIST (area) = 0; | |
1233 | ||
1234 | if (IMPORT_NAME (area)) | |
1235 | free (IMPORT_NAME (area)); | |
1236 | ||
1237 | IMPORT_NAME (area) = NULL; | |
68980084 | 1238 | ospf_area_check_free (ospf, area->area_id); |
718e3744 | 1239 | |
68980084 | 1240 | ospf_schedule_abr_task (ospf); |
718e3744 | 1241 | |
1242 | return 1; | |
1243 | } | |
1244 | ||
1245 | int | |
1246 | ospf_timers_spf_set (struct ospf *ospf, u_int32_t delay, u_int32_t hold) | |
1247 | { | |
1248 | ospf->spf_delay = delay; | |
1249 | ospf->spf_holdtime = hold; | |
1250 | ||
1251 | return 1; | |
1252 | } | |
1253 | ||
1254 | int | |
1255 | ospf_timers_spf_unset (struct ospf *ospf) | |
1256 | { | |
1257 | ospf->spf_delay = OSPF_SPF_DELAY_DEFAULT; | |
1258 | ospf->spf_holdtime = OSPF_SPF_HOLDTIME_DEFAULT; | |
1259 | ||
1260 | return 1; | |
1261 | } | |
1262 | ||
1263 | int | |
1264 | ospf_timers_refresh_set (struct ospf *ospf, int interval) | |
1265 | { | |
1266 | int time_left; | |
1267 | ||
1268 | if (ospf->lsa_refresh_interval == interval) | |
1269 | return 1; | |
1270 | ||
1271 | time_left = ospf->lsa_refresh_interval - | |
1272 | (time (NULL) - ospf->lsa_refresher_started); | |
1273 | ||
1274 | if (time_left > interval) | |
1275 | { | |
1276 | OSPF_TIMER_OFF (ospf->t_lsa_refresher); | |
1277 | ospf->t_lsa_refresher = | |
1278 | thread_add_timer (master, ospf_lsa_refresh_walker, ospf, interval); | |
1279 | } | |
1280 | ospf->lsa_refresh_interval = interval; | |
1281 | ||
1282 | return 1; | |
1283 | } | |
1284 | ||
1285 | int | |
1286 | ospf_timers_refresh_unset (struct ospf *ospf) | |
1287 | { | |
1288 | int time_left; | |
1289 | ||
1290 | time_left = ospf->lsa_refresh_interval - | |
1291 | (time (NULL) - ospf->lsa_refresher_started); | |
1292 | ||
1293 | if (time_left > OSPF_LSA_REFRESH_INTERVAL_DEFAULT) | |
1294 | { | |
1295 | OSPF_TIMER_OFF (ospf->t_lsa_refresher); | |
1296 | ospf->t_lsa_refresher = | |
1297 | thread_add_timer (master, ospf_lsa_refresh_walker, ospf, | |
1298 | OSPF_LSA_REFRESH_INTERVAL_DEFAULT); | |
1299 | } | |
1300 | ||
1301 | ospf->lsa_refresh_interval = OSPF_LSA_REFRESH_INTERVAL_DEFAULT; | |
1302 | ||
1303 | return 1; | |
1304 | } | |
1305 | ||
1306 | \f | |
1307 | struct ospf_nbr_nbma * | |
1308 | ospf_nbr_nbma_new () | |
1309 | { | |
1310 | struct ospf_nbr_nbma *nbr_nbma; | |
1311 | ||
1312 | nbr_nbma = XMALLOC (MTYPE_OSPF_NEIGHBOR_STATIC, | |
1313 | sizeof (struct ospf_nbr_nbma)); | |
1314 | memset (nbr_nbma, 0, sizeof (struct ospf_nbr_nbma)); | |
1315 | ||
1316 | nbr_nbma->priority = OSPF_NEIGHBOR_PRIORITY_DEFAULT; | |
1317 | nbr_nbma->v_poll = OSPF_POLL_INTERVAL_DEFAULT; | |
1318 | ||
1319 | return nbr_nbma; | |
1320 | } | |
1321 | ||
1322 | void | |
1323 | ospf_nbr_nbma_free (struct ospf_nbr_nbma *nbr_nbma) | |
1324 | { | |
1325 | XFREE (MTYPE_OSPF_NEIGHBOR_STATIC, nbr_nbma); | |
1326 | } | |
1327 | ||
1328 | void | |
1329 | ospf_nbr_nbma_delete (struct ospf *ospf, struct ospf_nbr_nbma *nbr_nbma) | |
1330 | { | |
1331 | struct route_node *rn; | |
1332 | struct prefix_ipv4 p; | |
1333 | ||
1334 | p.family = AF_INET; | |
1335 | p.prefix = nbr_nbma->addr; | |
1336 | p.prefixlen = IPV4_MAX_BITLEN; | |
1337 | ||
1338 | rn = route_node_lookup (ospf->nbr_nbma, (struct prefix *)&p); | |
1339 | if (rn) | |
1340 | { | |
1341 | ospf_nbr_nbma_free (rn->info); | |
1342 | rn->info = NULL; | |
1343 | route_unlock_node (rn); | |
1344 | route_unlock_node (rn); | |
1345 | } | |
1346 | } | |
1347 | ||
1348 | void | |
1349 | ospf_nbr_nbma_down (struct ospf_nbr_nbma *nbr_nbma) | |
1350 | { | |
1351 | OSPF_TIMER_OFF (nbr_nbma->t_poll); | |
1352 | ||
1353 | if (nbr_nbma->nbr) | |
1354 | { | |
1355 | nbr_nbma->nbr->nbr_nbma = NULL; | |
1356 | OSPF_NSM_EVENT_EXECUTE (nbr_nbma->nbr, NSM_KillNbr); | |
1357 | } | |
1358 | ||
1359 | if (nbr_nbma->oi) | |
1360 | listnode_delete (nbr_nbma->oi->nbr_nbma, nbr_nbma); | |
1361 | } | |
1362 | ||
1363 | void | |
1364 | ospf_nbr_nbma_add (struct ospf_nbr_nbma *nbr_nbma, | |
1365 | struct ospf_interface *oi) | |
1366 | { | |
1367 | struct ospf_neighbor *nbr; | |
1368 | struct route_node *rn; | |
1369 | struct prefix p; | |
1370 | ||
1371 | if (oi->type != OSPF_IFTYPE_NBMA) | |
1372 | return; | |
1373 | ||
1374 | if (nbr_nbma->nbr != NULL) | |
1375 | return; | |
1376 | ||
1377 | if (IPV4_ADDR_SAME (&oi->nbr_self->address.u.prefix4, &nbr_nbma->addr)) | |
1378 | return; | |
1379 | ||
1380 | nbr_nbma->oi = oi; | |
1381 | listnode_add (oi->nbr_nbma, nbr_nbma); | |
1382 | ||
1383 | /* Get neighbor information from table. */ | |
1384 | p.family = AF_INET; | |
1385 | p.prefixlen = IPV4_MAX_BITLEN; | |
1386 | p.u.prefix4 = nbr_nbma->addr; | |
1387 | ||
1388 | rn = route_node_get (oi->nbrs, (struct prefix *)&p); | |
1389 | if (rn->info) | |
1390 | { | |
1391 | nbr = rn->info; | |
1392 | nbr->nbr_nbma = nbr_nbma; | |
1393 | nbr_nbma->nbr = nbr; | |
1394 | ||
1395 | route_unlock_node (rn); | |
1396 | } | |
1397 | else | |
1398 | { | |
1399 | nbr = rn->info = ospf_nbr_new (oi); | |
1400 | nbr->state = NSM_Down; | |
1401 | nbr->src = nbr_nbma->addr; | |
1402 | nbr->nbr_nbma = nbr_nbma; | |
1403 | nbr->priority = nbr_nbma->priority; | |
1404 | nbr->address = p; | |
1405 | ||
1406 | nbr_nbma->nbr = nbr; | |
1407 | ||
1408 | OSPF_NSM_EVENT_EXECUTE (nbr, NSM_Start); | |
1409 | } | |
1410 | } | |
1411 | ||
1412 | void | |
68980084 | 1413 | ospf_nbr_nbma_if_update (struct ospf *ospf, struct ospf_interface *oi) |
718e3744 | 1414 | { |
1415 | struct ospf_nbr_nbma *nbr_nbma; | |
1416 | struct route_node *rn; | |
1417 | struct prefix_ipv4 p; | |
1418 | ||
1419 | if (oi->type != OSPF_IFTYPE_NBMA) | |
1420 | return; | |
1421 | ||
68980084 | 1422 | for (rn = route_top (ospf->nbr_nbma); rn; rn = route_next (rn)) |
718e3744 | 1423 | if ((nbr_nbma = rn->info)) |
1424 | if (nbr_nbma->oi == NULL && nbr_nbma->nbr == NULL) | |
1425 | { | |
1426 | p.family = AF_INET; | |
1427 | p.prefix = nbr_nbma->addr; | |
1428 | p.prefixlen = IPV4_MAX_BITLEN; | |
1429 | ||
1430 | if (prefix_match (oi->address, (struct prefix *)&p)) | |
1431 | ospf_nbr_nbma_add (nbr_nbma, oi); | |
1432 | } | |
1433 | } | |
1434 | ||
1435 | struct ospf_nbr_nbma * | |
1436 | ospf_nbr_nbma_lookup (struct ospf *ospf, struct in_addr nbr_addr) | |
1437 | { | |
1438 | struct route_node *rn; | |
1439 | struct prefix_ipv4 p; | |
1440 | ||
1441 | p.family = AF_INET; | |
1442 | p.prefix = nbr_addr; | |
1443 | p.prefixlen = IPV4_MAX_BITLEN; | |
1444 | ||
1445 | rn = route_node_lookup (ospf->nbr_nbma, (struct prefix *)&p); | |
1446 | if (rn) | |
1447 | { | |
1448 | route_unlock_node (rn); | |
1449 | return rn->info; | |
1450 | } | |
1451 | return NULL; | |
1452 | } | |
1453 | ||
1454 | struct ospf_nbr_nbma * | |
68980084 | 1455 | ospf_nbr_nbma_lookup_next (struct ospf *ospf, struct in_addr *addr, int first) |
718e3744 | 1456 | { |
1457 | #if 0 | |
1458 | struct ospf_nbr_nbma *nbr_nbma; | |
52dc7ee6 | 1459 | struct listnode *node; |
718e3744 | 1460 | #endif |
1461 | ||
68980084 | 1462 | if (ospf == NULL) |
718e3744 | 1463 | return NULL; |
1464 | ||
1465 | #if 0 | |
68980084 | 1466 | for (node = listhead (ospf->nbr_nbma); node; nextnode (node)) |
718e3744 | 1467 | { |
1468 | nbr_nbma = getdata (node); | |
1469 | ||
1470 | if (first) | |
1471 | { | |
1472 | *addr = nbr_nbma->addr; | |
1473 | return nbr_nbma; | |
1474 | } | |
1475 | else if (ntohl (nbr_nbma->addr.s_addr) > ntohl (addr->s_addr)) | |
1476 | { | |
1477 | *addr = nbr_nbma->addr; | |
1478 | return nbr_nbma; | |
1479 | } | |
1480 | } | |
1481 | #endif | |
1482 | return NULL; | |
1483 | } | |
1484 | ||
1485 | int | |
1486 | ospf_nbr_nbma_set (struct ospf *ospf, struct in_addr nbr_addr) | |
1487 | { | |
1488 | struct ospf_nbr_nbma *nbr_nbma; | |
1489 | struct ospf_interface *oi; | |
1490 | struct prefix_ipv4 p; | |
1491 | struct route_node *rn; | |
52dc7ee6 | 1492 | struct listnode *node; |
718e3744 | 1493 | |
1494 | nbr_nbma = ospf_nbr_nbma_lookup (ospf, nbr_addr); | |
1495 | if (nbr_nbma) | |
1496 | return 0; | |
1497 | ||
1498 | nbr_nbma = ospf_nbr_nbma_new (); | |
1499 | nbr_nbma->addr = nbr_addr; | |
1500 | ||
1501 | p.family = AF_INET; | |
1502 | p.prefix = nbr_addr; | |
1503 | p.prefixlen = IPV4_MAX_BITLEN; | |
1504 | ||
1505 | rn = route_node_get (ospf->nbr_nbma, (struct prefix *)&p); | |
1506 | rn->info = nbr_nbma; | |
1507 | ||
1508 | for (node = listhead (ospf->oiflist); node; nextnode (node)) | |
1509 | { | |
1510 | oi = getdata (node); | |
1511 | if (oi->type == OSPF_IFTYPE_NBMA) | |
1512 | if (prefix_match (oi->address, (struct prefix *)&p)) | |
1513 | { | |
1514 | ospf_nbr_nbma_add (nbr_nbma, oi); | |
1515 | break; | |
1516 | } | |
1517 | } | |
1518 | ||
1519 | return 1; | |
1520 | } | |
1521 | ||
1522 | int | |
1523 | ospf_nbr_nbma_unset (struct ospf *ospf, struct in_addr nbr_addr) | |
1524 | { | |
1525 | struct ospf_nbr_nbma *nbr_nbma; | |
1526 | ||
1527 | nbr_nbma = ospf_nbr_nbma_lookup (ospf, nbr_addr); | |
1528 | if (nbr_nbma == NULL) | |
1529 | return 0; | |
1530 | ||
1531 | ospf_nbr_nbma_down (nbr_nbma); | |
1532 | ospf_nbr_nbma_delete (ospf, nbr_nbma); | |
1533 | ||
1534 | return 1; | |
1535 | } | |
1536 | ||
1537 | int | |
1538 | ospf_nbr_nbma_priority_set (struct ospf *ospf, struct in_addr nbr_addr, | |
1539 | u_char priority) | |
1540 | { | |
1541 | struct ospf_nbr_nbma *nbr_nbma; | |
1542 | ||
1543 | nbr_nbma = ospf_nbr_nbma_lookup (ospf, nbr_addr); | |
1544 | if (nbr_nbma == NULL) | |
1545 | return 0; | |
1546 | ||
1547 | if (nbr_nbma->priority != priority) | |
1548 | nbr_nbma->priority = priority; | |
1549 | ||
1550 | return 1; | |
1551 | } | |
1552 | ||
1553 | int | |
1554 | ospf_nbr_nbma_priority_unset (struct ospf *ospf, struct in_addr nbr_addr) | |
1555 | { | |
1556 | struct ospf_nbr_nbma *nbr_nbma; | |
1557 | ||
1558 | nbr_nbma = ospf_nbr_nbma_lookup (ospf, nbr_addr); | |
1559 | if (nbr_nbma == NULL) | |
1560 | return 0; | |
1561 | ||
1562 | if (nbr_nbma != OSPF_NEIGHBOR_PRIORITY_DEFAULT) | |
1563 | nbr_nbma->priority = OSPF_NEIGHBOR_PRIORITY_DEFAULT; | |
1564 | ||
1565 | return 1; | |
1566 | } | |
1567 | ||
1568 | int | |
1569 | ospf_nbr_nbma_poll_interval_set (struct ospf *ospf, struct in_addr nbr_addr, | |
6c835671 | 1570 | unsigned int interval) |
718e3744 | 1571 | { |
1572 | struct ospf_nbr_nbma *nbr_nbma; | |
1573 | ||
1574 | nbr_nbma = ospf_nbr_nbma_lookup (ospf, nbr_addr); | |
1575 | if (nbr_nbma == NULL) | |
1576 | return 0; | |
1577 | ||
1578 | if (nbr_nbma->v_poll != interval) | |
1579 | { | |
1580 | nbr_nbma->v_poll = interval; | |
1581 | if (nbr_nbma->oi && ospf_if_is_up (nbr_nbma->oi)) | |
1582 | { | |
1583 | OSPF_TIMER_OFF (nbr_nbma->t_poll); | |
1584 | OSPF_POLL_TIMER_ON (nbr_nbma->t_poll, ospf_poll_timer, | |
1585 | nbr_nbma->v_poll); | |
1586 | } | |
1587 | } | |
1588 | ||
1589 | return 1; | |
1590 | } | |
1591 | ||
1592 | int | |
1593 | ospf_nbr_nbma_poll_interval_unset (struct ospf *ospf, struct in_addr addr) | |
1594 | { | |
1595 | struct ospf_nbr_nbma *nbr_nbma; | |
1596 | ||
1597 | nbr_nbma = ospf_nbr_nbma_lookup (ospf, addr); | |
1598 | if (nbr_nbma == NULL) | |
1599 | return 0; | |
1600 | ||
1601 | if (nbr_nbma->v_poll != OSPF_POLL_INTERVAL_DEFAULT) | |
1602 | nbr_nbma->v_poll = OSPF_POLL_INTERVAL_DEFAULT; | |
1603 | ||
1604 | return 1; | |
1605 | } | |
1606 | ||
718e3744 | 1607 | void |
020709f9 | 1608 | ospf_master_init () |
718e3744 | 1609 | { |
020709f9 | 1610 | memset (&ospf_master, 0, sizeof (struct ospf_master)); |
1611 | ||
1612 | om = &ospf_master; | |
1613 | om->ospf = list_new (); | |
1614 | om->master = thread_master_create (); | |
1615 | om->start_time = time (NULL); | |
1616 | } |