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718e3744 | 1 | /* OSPF version 2 daemon program. |
896014f4 DL |
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 along | |
17 | * with this program; see the file COPYING; if not, write to the Free Software | |
18 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA | |
19 | */ | |
718e3744 | 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" | |
d62a17ae | 33 | #include "sockunion.h" /* for inet_aton () */ |
718e3744 | 34 | #include "zclient.h" |
35 | #include "plist.h" | |
f102e75f | 36 | #include "sockopt.h" |
567b877d | 37 | #include "bfd.h" |
8879bd22 | 38 | #include "libfrr.h" |
8efe88ea | 39 | #include "defaults.h" |
718e3744 | 40 | |
41 | #include "ospfd/ospfd.h" | |
42 | #include "ospfd/ospf_network.h" | |
43 | #include "ospfd/ospf_interface.h" | |
44 | #include "ospfd/ospf_ism.h" | |
45 | #include "ospfd/ospf_asbr.h" | |
46 | #include "ospfd/ospf_lsa.h" | |
47 | #include "ospfd/ospf_lsdb.h" | |
48 | #include "ospfd/ospf_neighbor.h" | |
49 | #include "ospfd/ospf_nsm.h" | |
50 | #include "ospfd/ospf_spf.h" | |
51 | #include "ospfd/ospf_packet.h" | |
52 | #include "ospfd/ospf_dump.h" | |
53 | #include "ospfd/ospf_zebra.h" | |
54 | #include "ospfd/ospf_abr.h" | |
55 | #include "ospfd/ospf_flood.h" | |
56 | #include "ospfd/ospf_route.h" | |
57 | #include "ospfd/ospf_ase.h" | |
58 | ||
6b0655a2 | 59 | |
ae19c240 | 60 | DEFINE_QOBJ_TYPE(ospf) |
edd7c245 | 61 | |
020709f9 | 62 | /* OSPF process wide configuration. */ |
63 | static struct ospf_master ospf_master; | |
64 | ||
65 | /* OSPF process wide configuration pointer to export. */ | |
66 | struct ospf_master *om; | |
718e3744 | 67 | |
68 | extern struct zclient *zclient; | |
69 | ||
6b0655a2 | 70 | |
d62a17ae | 71 | static void ospf_remove_vls_through_area(struct ospf *, struct ospf_area *); |
72 | static void ospf_network_free(struct ospf *, struct ospf_network *); | |
73 | static void ospf_area_free(struct ospf_area *); | |
74 | static void ospf_network_run(struct prefix *, struct ospf_area *); | |
75 | static void ospf_network_run_interface(struct ospf *, struct interface *, | |
76 | struct prefix *, struct ospf_area *); | |
77 | static void ospf_network_run_subnet(struct ospf *, struct connected *, | |
78 | struct prefix *, struct ospf_area *); | |
79 | static int ospf_network_match_iface(const struct connected *, | |
80 | const struct prefix *); | |
81 | static void ospf_finish_final(struct ospf *); | |
718e3744 | 82 | |
718e3744 | 83 | #define OSPF_EXTERNAL_LSA_ORIGINATE_DELAY 1 |
6b0655a2 | 84 | |
d62a17ae | 85 | void ospf_router_id_update(struct ospf *ospf) |
718e3744 | 86 | { |
f4e14fdb | 87 | struct vrf *vrf = vrf_lookup_by_id(ospf->vrf_id); |
d62a17ae | 88 | struct in_addr router_id, router_id_old; |
89 | struct ospf_interface *oi; | |
90 | struct interface *ifp; | |
91 | struct listnode *node; | |
92 | int type; | |
2c19a6ec | 93 | |
d62a17ae | 94 | if (!ospf->oi_running) { |
95 | if (IS_DEBUG_OSPF_EVENT) | |
96 | zlog_debug( | |
97 | "Router ospf not configured -- Router-ID update postponed"); | |
98 | return; | |
25a346eb | 99 | } |
718e3744 | 100 | |
d62a17ae | 101 | if (IS_DEBUG_OSPF_EVENT) |
102 | zlog_debug("Router-ID[OLD:%s]: Update", | |
103 | inet_ntoa(ospf->router_id)); | |
104 | ||
105 | router_id_old = ospf->router_id; | |
106 | ||
107 | /* Select the router ID based on these priorities: | |
108 | 1. Statically assigned router ID is always the first choice. | |
109 | 2. If there is no statically assigned router ID, then try to stick | |
110 | with the most recent value, since changing router ID's is very | |
111 | disruptive. | |
112 | 3. Last choice: just go with whatever the zebra daemon recommends. | |
113 | */ | |
114 | if (ospf->router_id_static.s_addr != 0) | |
115 | router_id = ospf->router_id_static; | |
116 | else if (ospf->router_id.s_addr != 0) | |
117 | router_id = ospf->router_id; | |
118 | else | |
6021c6c0 | 119 | router_id = ospf->router_id_zebra; |
d62a17ae | 120 | |
b5a8894d CS |
121 | if (IS_DEBUG_OSPF_EVENT) |
122 | zlog_debug("Router-ID[OLD:%s]: Update to %s", | |
123 | inet_ntoa(ospf->router_id), | |
6021c6c0 | 124 | inet_ntoa(router_id)); |
d62a17ae | 125 | |
126 | if (!IPV4_ADDR_SAME(&router_id_old, &router_id)) { | |
127 | ||
128 | for (ALL_LIST_ELEMENTS_RO(ospf->oiflist, node, oi)) { | |
129 | /* Some nbrs are identified by router_id, these needs | |
130 | * to be rebuilt. Possible optimization would be to do | |
131 | * oi->nbr_self->router_id = router_id for | |
132 | * !(virtual | ptop) links | |
133 | */ | |
134 | ospf_nbr_self_reset(oi, router_id); | |
135 | } | |
136 | ||
137 | /* If AS-external-LSA is queued, then flush those LSAs. */ | |
138 | if (router_id_old.s_addr == 0 && ospf->external_origin) { | |
139 | /* Originate each redistributed external route. */ | |
140 | for (type = 0; type < ZEBRA_ROUTE_MAX; type++) | |
141 | if (ospf->external_origin & (1 << type)) | |
142 | thread_add_event( | |
143 | master, | |
144 | ospf_external_lsa_originate_timer, | |
145 | ospf, type, NULL); | |
146 | /* Originate Deafult. */ | |
147 | if (ospf->external_origin & (1 << ZEBRA_ROUTE_MAX)) | |
148 | thread_add_event(master, | |
149 | ospf_default_originate_timer, | |
150 | ospf, 0, NULL); | |
151 | ||
152 | ospf->external_origin = 0; | |
153 | } | |
154 | ||
155 | /* Flush (inline) all external LSAs based on the OSPF_LSA_SELF | |
156 | * flag */ | |
157 | if (ospf->lsdb) { | |
158 | struct route_node *rn; | |
159 | struct ospf_lsa *lsa; | |
160 | ||
161 | LSDB_LOOP(EXTERNAL_LSDB(ospf), rn, lsa) | |
044506e7 DS |
162 | if (IS_LSA_SELF(lsa)) |
163 | ospf_lsa_flush_schedule(ospf, lsa); | |
d62a17ae | 164 | } |
165 | ||
166 | ospf->router_id = router_id; | |
167 | if (IS_DEBUG_OSPF_EVENT) | |
168 | zlog_debug("Router-ID[NEW:%s]: Update", | |
169 | inet_ntoa(ospf->router_id)); | |
170 | ||
171 | /* Flush (inline) all external LSAs which now match the new | |
172 | router-id, | |
173 | need to adjust the OSPF_LSA_SELF flag, so the flush doesnt | |
174 | hit | |
175 | asserts in ospf_refresher_unregister_lsa(). This step is | |
176 | needed | |
177 | because the current quagga code does look-up for | |
178 | self-originated LSAs | |
179 | based on the self router-id alone but expects OSPF_LSA_SELF | |
180 | to be | |
181 | properly set */ | |
182 | if (ospf->lsdb) { | |
183 | struct route_node *rn; | |
184 | struct ospf_lsa *lsa; | |
185 | ||
044506e7 | 186 | LSDB_LOOP (EXTERNAL_LSDB(ospf), rn, lsa) { |
d62a17ae | 187 | /* AdvRouter and Router ID is the same. */ |
188 | if (IPV4_ADDR_SAME(&lsa->data->adv_router, | |
189 | &ospf->router_id)) { | |
190 | SET_FLAG(lsa->flags, | |
191 | OSPF_LSA_SELF_CHECKED); | |
192 | SET_FLAG(lsa->flags, OSPF_LSA_SELF); | |
193 | ospf_lsa_flush_schedule(ospf, lsa); | |
194 | } | |
195 | } | |
196 | } | |
197 | ||
198 | /* Originate each redistributed external route. */ | |
199 | for (type = 0; type < ZEBRA_ROUTE_MAX; type++) | |
200 | thread_add_event(master, | |
201 | ospf_external_lsa_originate_timer, | |
202 | ospf, type, NULL); | |
203 | thread_add_event(master, ospf_default_originate_timer, ospf, 0, | |
204 | NULL); | |
205 | ||
206 | /* update router-lsa's for each area */ | |
207 | ospf_router_lsa_update(ospf); | |
208 | ||
209 | /* update ospf_interface's */ | |
451fda4f | 210 | FOR_ALL_INTERFACES (vrf, ifp) |
d62a17ae | 211 | ospf_if_update(ospf, ifp); |
718e3744 | 212 | } |
718e3744 | 213 | } |
6b0655a2 | 214 | |
718e3744 | 215 | /* For OSPF area sort by area id. */ |
d62a17ae | 216 | static int ospf_area_id_cmp(struct ospf_area *a1, struct ospf_area *a2) |
718e3744 | 217 | { |
d62a17ae | 218 | if (ntohl(a1->area_id.s_addr) > ntohl(a2->area_id.s_addr)) |
219 | return 1; | |
220 | if (ntohl(a1->area_id.s_addr) < ntohl(a2->area_id.s_addr)) | |
221 | return -1; | |
222 | return 0; | |
718e3744 | 223 | } |
224 | ||
225 | /* Allocate new ospf structure. */ | |
b5a8894d | 226 | static struct ospf *ospf_new(u_short instance, const char *name) |
718e3744 | 227 | { |
d62a17ae | 228 | int i; |
b5a8894d | 229 | struct vrf *vrf = NULL; |
718e3744 | 230 | |
d62a17ae | 231 | struct ospf *new = XCALLOC(MTYPE_OSPF_TOP, sizeof(struct ospf)); |
718e3744 | 232 | |
d62a17ae | 233 | new->instance = instance; |
234 | new->router_id.s_addr = htonl(0); | |
235 | new->router_id_static.s_addr = htonl(0); | |
718e3744 | 236 | |
b5a8894d CS |
237 | if (name) { |
238 | new->vrf_id = VRF_UNKNOWN; | |
239 | /* Freed in ospf_finish_final */ | |
240 | new->name = XSTRDUP(MTYPE_OSPF_TOP, name); | |
241 | vrf = vrf_lookup_by_name(new->name); | |
242 | if (IS_DEBUG_OSPF_EVENT) | |
fe3da9e7 | 243 | zlog_debug("%s: Create new ospf instance with vrf_name %s vrf_id %u", |
b5a8894d CS |
244 | __PRETTY_FUNCTION__, name, new->vrf_id); |
245 | if (vrf) | |
246 | ospf_vrf_link(new, vrf); | |
247 | } else { | |
248 | new->vrf_id = VRF_DEFAULT; | |
249 | vrf = vrf_lookup_by_id(VRF_DEFAULT); | |
250 | ospf_vrf_link(new, vrf); | |
251 | } | |
252 | ospf_zebra_vrf_register(new); | |
253 | ||
d62a17ae | 254 | new->abr_type = OSPF_ABR_DEFAULT; |
255 | new->oiflist = list_new(); | |
256 | new->vlinks = list_new(); | |
257 | new->areas = list_new(); | |
258 | new->areas->cmp = (int (*)(void *, void *))ospf_area_id_cmp; | |
259 | new->networks = route_table_init(); | |
260 | new->nbr_nbma = route_table_init(); | |
718e3744 | 261 | |
d62a17ae | 262 | new->lsdb = ospf_lsdb_new(); |
718e3744 | 263 | |
d62a17ae | 264 | new->default_originate = DEFAULT_ORIGINATE_NONE; |
718e3744 | 265 | |
d62a17ae | 266 | new->passive_interface_default = OSPF_IF_ACTIVE; |
4ba4fc85 | 267 | |
d62a17ae | 268 | new->new_external_route = route_table_init(); |
269 | new->old_external_route = route_table_init(); | |
270 | new->external_lsas = route_table_init(); | |
271 | ||
272 | new->stub_router_startup_time = OSPF_STUB_ROUTER_UNCONFIGURED; | |
273 | new->stub_router_shutdown_time = OSPF_STUB_ROUTER_UNCONFIGURED; | |
274 | new->stub_router_admin_set = OSPF_STUB_ROUTER_ADMINISTRATIVE_UNSET; | |
275 | ||
276 | /* Distribute parameter init. */ | |
277 | for (i = 0; i <= ZEBRA_ROUTE_MAX; i++) { | |
278 | new->dtag[i] = 0; | |
279 | } | |
280 | new->default_metric = -1; | |
281 | new->ref_bandwidth = OSPF_DEFAULT_REF_BANDWIDTH; | |
282 | ||
283 | /* LSA timers */ | |
284 | new->min_ls_interval = OSPF_MIN_LS_INTERVAL; | |
285 | new->min_ls_arrival = OSPF_MIN_LS_ARRIVAL; | |
286 | ||
287 | /* SPF timer value init. */ | |
288 | new->spf_delay = OSPF_SPF_DELAY_DEFAULT; | |
289 | new->spf_holdtime = OSPF_SPF_HOLDTIME_DEFAULT; | |
290 | new->spf_max_holdtime = OSPF_SPF_MAX_HOLDTIME_DEFAULT; | |
291 | new->spf_hold_multiplier = 1; | |
292 | ||
293 | /* MaxAge init. */ | |
294 | new->maxage_delay = OSPF_LSA_MAXAGE_REMOVE_DELAY_DEFAULT; | |
295 | new->maxage_lsa = route_table_init(); | |
296 | new->t_maxage_walker = NULL; | |
297 | thread_add_timer(master, ospf_lsa_maxage_walker, new, | |
298 | OSPF_LSA_MAXAGE_CHECK_INTERVAL, &new->t_maxage_walker); | |
299 | ||
300 | /* Distance table init. */ | |
301 | new->distance_table = route_table_init(); | |
302 | ||
303 | new->lsa_refresh_queue.index = 0; | |
304 | new->lsa_refresh_interval = OSPF_LSA_REFRESH_INTERVAL_DEFAULT; | |
305 | new->t_lsa_refresher = NULL; | |
306 | thread_add_timer(master, ospf_lsa_refresh_walker, new, | |
307 | new->lsa_refresh_interval, &new->t_lsa_refresher); | |
308 | new->lsa_refresher_started = monotime(NULL); | |
309 | ||
e7503eab | 310 | if ((ospf_sock_init(new)) < 0) { |
d62a17ae | 311 | zlog_err( |
312 | "ospf_new: fatal error: ospf_sock_init was unable to open " | |
313 | "a socket"); | |
314 | exit(1); | |
315 | } | |
316 | if ((new->ibuf = stream_new(OSPF_MAX_PACKET_SIZE + 1)) == NULL) { | |
317 | zlog_err( | |
318 | "ospf_new: fatal error: stream_new(%u) failed allocating ibuf", | |
319 | OSPF_MAX_PACKET_SIZE + 1); | |
320 | exit(1); | |
321 | } | |
322 | new->t_read = NULL; | |
323 | thread_add_read(master, ospf_read, new, new->fd, &new->t_read); | |
324 | new->oi_write_q = list_new(); | |
325 | new->write_oi_count = OSPF_WRITE_INTERFACE_COUNT_DEFAULT; | |
326 | ||
327 | /* Enable "log-adjacency-changes" */ | |
8efe88ea | 328 | #if DFLT_OSPF_LOG_ADJACENCY_CHANGES |
d62a17ae | 329 | SET_FLAG(new->config, OSPF_LOG_ADJACENCY_CHANGES); |
8efe88ea | 330 | #endif |
3e7c8d04 | 331 | |
d62a17ae | 332 | QOBJ_REG(new, ospf); |
ae19c240 | 333 | |
d62a17ae | 334 | return new; |
718e3744 | 335 | } |
336 | ||
d62a17ae | 337 | struct ospf *ospf_lookup_instance(u_short instance) |
7c8ff89e | 338 | { |
d62a17ae | 339 | struct ospf *ospf; |
340 | struct listnode *node, *nnode; | |
7c8ff89e | 341 | |
d62a17ae | 342 | if (listcount(om->ospf) == 0) |
343 | return NULL; | |
7c8ff89e | 344 | |
d62a17ae | 345 | for (ALL_LIST_ELEMENTS(om->ospf, node, nnode, ospf)) |
346 | if ((ospf->instance == 0 && instance == 0) | |
347 | || (ospf->instance && instance | |
348 | && ospf->instance == instance)) | |
349 | return ospf; | |
7c8ff89e | 350 | |
d62a17ae | 351 | return NULL; |
7c8ff89e DS |
352 | } |
353 | ||
d62a17ae | 354 | static int ospf_is_ready(struct ospf *ospf) |
52c62ab8 | 355 | { |
d62a17ae | 356 | /* OSPF must be on and Router-ID must be configured. */ |
357 | if (!ospf || ospf->router_id.s_addr == 0) | |
358 | return 0; | |
359 | ||
360 | return 1; | |
52c62ab8 JAG |
361 | } |
362 | ||
d62a17ae | 363 | static void ospf_add(struct ospf *ospf) |
020709f9 | 364 | { |
d62a17ae | 365 | listnode_add(om->ospf, ospf); |
020709f9 | 366 | } |
718e3744 | 367 | |
d62a17ae | 368 | static void ospf_delete(struct ospf *ospf) |
020709f9 | 369 | { |
d62a17ae | 370 | listnode_delete(om->ospf, ospf); |
020709f9 | 371 | } |
68980084 | 372 | |
b5a8894d CS |
373 | struct ospf *ospf_lookup_by_inst_name(u_short instance, const char *name) |
374 | { | |
375 | struct ospf *ospf = NULL; | |
376 | struct listnode *node, *nnode; | |
377 | ||
378 | for (ALL_LIST_ELEMENTS(om->ospf, node, nnode, ospf)) { | |
379 | if ((ospf->instance == instance) && | |
380 | ((ospf->name == NULL && name == NULL) || | |
381 | (ospf->name && name && strcmp(ospf->name, name) == 0))) | |
382 | return ospf; | |
383 | } | |
384 | return NULL; | |
385 | } | |
386 | ||
387 | struct ospf *ospf_get(u_short instance, const char *name) | |
020709f9 | 388 | { |
d62a17ae | 389 | struct ospf *ospf; |
020709f9 | 390 | |
b5a8894d CS |
391 | /* vrf name provided call inst and name based api |
392 | * in case of no name pass default ospf instance */ | |
393 | if (name) | |
394 | ospf = ospf_lookup_by_inst_name(instance, name); | |
395 | else | |
396 | ospf = ospf_lookup_by_vrf_id(VRF_DEFAULT); | |
397 | ||
d62a17ae | 398 | if (ospf == NULL) { |
b5a8894d | 399 | ospf = ospf_new(instance, name); |
d62a17ae | 400 | ospf_add(ospf); |
7c8ff89e | 401 | |
d62a17ae | 402 | if (ospf->router_id_static.s_addr == 0) |
403 | ospf_router_id_update(ospf); | |
7c8ff89e | 404 | |
d62a17ae | 405 | ospf_opaque_type11_lsa_init(ospf); |
406 | } | |
7c8ff89e | 407 | |
d62a17ae | 408 | return ospf; |
7c8ff89e DS |
409 | } |
410 | ||
d62a17ae | 411 | struct ospf *ospf_get_instance(u_short instance) |
7c8ff89e | 412 | { |
d62a17ae | 413 | struct ospf *ospf; |
7c8ff89e | 414 | |
d62a17ae | 415 | ospf = ospf_lookup_instance(instance); |
416 | if (ospf == NULL) { | |
b5a8894d | 417 | ospf = ospf_new(instance, NULL /* VRF_DEFAULT*/); |
d62a17ae | 418 | ospf_add(ospf); |
020709f9 | 419 | |
b5a8894d CS |
420 | if (ospf->router_id_static.s_addr == 0) { |
421 | if (vrf_lookup_by_id(ospf->vrf_id)) | |
422 | ospf_router_id_update(ospf); | |
423 | else { | |
424 | if (IS_DEBUG_OSPF_EVENT) | |
425 | zlog_debug("%s: ospf VRF (id %d) is not active yet, skip router id update" | |
426 | , __PRETTY_FUNCTION__, | |
427 | ospf->vrf_id); | |
428 | } | |
d62a17ae | 429 | ospf_router_id_update(ospf); |
b5a8894d | 430 | } |
718e3744 | 431 | |
d62a17ae | 432 | ospf_opaque_type11_lsa_init(ospf); |
433 | } | |
68980084 | 434 | |
d62a17ae | 435 | return ospf; |
718e3744 | 436 | } |
6b0655a2 | 437 | |
b5a8894d CS |
438 | struct ospf *ospf_lookup_by_vrf_id(vrf_id_t vrf_id) |
439 | { | |
440 | struct vrf *vrf = NULL; | |
441 | ||
442 | vrf = vrf_lookup_by_id(vrf_id); | |
443 | if (!vrf) | |
444 | return NULL; | |
445 | return (vrf->info) ? (struct ospf *)vrf->info : NULL; | |
446 | ||
447 | } | |
448 | ||
43b8d1d8 CS |
449 | /* It should only be used when processing incoming info update from zebra. |
450 | * Other situations, it is not sufficient to lookup the ospf instance by | |
451 | * vrf_name only without using the instance number. | |
452 | */ | |
453 | static struct ospf *ospf_lookup_by_name(const char *vrf_name) | |
b5a8894d CS |
454 | { |
455 | struct ospf *ospf = NULL; | |
456 | struct listnode *node, *nnode; | |
457 | ||
458 | for (ALL_LIST_ELEMENTS(om->ospf, node, nnode, ospf)) | |
43b8d1d8 CS |
459 | if ((ospf->name == NULL && vrf_name == NULL) |
460 | || (ospf->name && vrf_name && | |
461 | strcmp(ospf->name, vrf_name) == 0)) | |
b5a8894d CS |
462 | return ospf; |
463 | return NULL; | |
464 | } | |
465 | ||
c9c93d50 | 466 | /* Handle the second half of deferred shutdown. This is called either |
467 | * from the deferred-shutdown timer thread, or directly through | |
468 | * ospf_deferred_shutdown_check. | |
88d6cf37 | 469 | * |
470 | * Function is to cleanup G-R state, if required then call ospf_finish_final | |
471 | * to complete shutdown of this ospf instance. Possibly exit if the | |
472 | * whole process is being shutdown and this was the last OSPF instance. | |
473 | */ | |
d62a17ae | 474 | static void ospf_deferred_shutdown_finish(struct ospf *ospf) |
475 | { | |
476 | ospf->stub_router_shutdown_time = OSPF_STUB_ROUTER_UNCONFIGURED; | |
477 | OSPF_TIMER_OFF(ospf->t_deferred_shutdown); | |
478 | ||
479 | ospf_finish_final(ospf); | |
480 | ||
481 | /* *ospf is now invalid */ | |
88d6cf37 | 482 | |
d62a17ae | 483 | /* ospfd being shut-down? If so, was this the last ospf instance? */ |
484 | if (CHECK_FLAG(om->options, OSPF_MASTER_SHUTDOWN) | |
485 | && (listcount(om->ospf) == 0)) { | |
486 | exit(0); | |
487 | } | |
488 | ||
489 | return; | |
88d6cf37 | 490 | } |
491 | ||
492 | /* Timer thread for G-R */ | |
d62a17ae | 493 | static int ospf_deferred_shutdown_timer(struct thread *t) |
88d6cf37 | 494 | { |
d62a17ae | 495 | struct ospf *ospf = THREAD_ARG(t); |
496 | ||
497 | ospf_deferred_shutdown_finish(ospf); | |
498 | ||
499 | return 0; | |
88d6cf37 | 500 | } |
501 | ||
c9c93d50 | 502 | /* Check whether deferred-shutdown must be scheduled, otherwise call |
88d6cf37 | 503 | * down directly into second-half of instance shutdown. |
504 | */ | |
d62a17ae | 505 | static void ospf_deferred_shutdown_check(struct ospf *ospf) |
506 | { | |
507 | unsigned long timeout; | |
508 | struct listnode *ln; | |
509 | struct ospf_area *area; | |
510 | ||
511 | /* deferred shutdown already running? */ | |
512 | if (ospf->t_deferred_shutdown) | |
513 | return; | |
514 | ||
515 | /* Should we try push out max-metric LSAs? */ | |
516 | if (ospf->stub_router_shutdown_time != OSPF_STUB_ROUTER_UNCONFIGURED) { | |
517 | for (ALL_LIST_ELEMENTS_RO(ospf->areas, ln, area)) { | |
518 | SET_FLAG(area->stub_router_state, | |
519 | OSPF_AREA_ADMIN_STUB_ROUTED); | |
520 | ||
521 | if (!CHECK_FLAG(area->stub_router_state, | |
522 | OSPF_AREA_IS_STUB_ROUTED)) | |
523 | ospf_router_lsa_update_area(area); | |
524 | } | |
525 | timeout = ospf->stub_router_shutdown_time; | |
526 | } else { | |
527 | /* No timer needed */ | |
528 | ospf_deferred_shutdown_finish(ospf); | |
529 | return; | |
530 | } | |
531 | ||
532 | OSPF_TIMER_ON(ospf->t_deferred_shutdown, ospf_deferred_shutdown_timer, | |
533 | timeout); | |
534 | return; | |
88d6cf37 | 535 | } |
6b0655a2 | 536 | |
88d6cf37 | 537 | /* Shut down the entire process */ |
d62a17ae | 538 | void ospf_terminate(void) |
539 | { | |
540 | struct ospf *ospf; | |
541 | struct listnode *node, *nnode; | |
542 | ||
543 | /* shutdown already in progress */ | |
544 | if (CHECK_FLAG(om->options, OSPF_MASTER_SHUTDOWN)) | |
545 | return; | |
546 | ||
547 | SET_FLAG(om->options, OSPF_MASTER_SHUTDOWN); | |
548 | ||
549 | /* exit immediately if OSPF not actually running */ | |
550 | if (listcount(om->ospf) == 0) | |
551 | exit(0); | |
552 | ||
553 | bfd_gbl_exit(); | |
554 | for (ALL_LIST_ELEMENTS(om->ospf, node, nnode, ospf)) | |
555 | ospf_finish(ospf); | |
556 | ||
557 | /* Deliberately go back up, hopefully to thread scheduler, as | |
558 | * One or more ospf_finish()'s may have deferred shutdown to a timer | |
559 | * thread | |
560 | */ | |
561 | zclient_stop(zclient); | |
562 | zclient_free(zclient); | |
8879bd22 RW |
563 | |
564 | frr_fini(); | |
d62a17ae | 565 | } |
566 | ||
567 | void ospf_finish(struct ospf *ospf) | |
568 | { | |
569 | /* let deferred shutdown decide */ | |
570 | ospf_deferred_shutdown_check(ospf); | |
571 | ||
572 | /* if ospf_deferred_shutdown returns, then ospf_finish_final is | |
573 | * deferred to expiry of G-S timer thread. Return back up, hopefully | |
574 | * to thread scheduler. | |
575 | */ | |
576 | return; | |
88d6cf37 | 577 | } |
578 | ||
579 | /* Final cleanup of ospf instance */ | |
d62a17ae | 580 | static void ospf_finish_final(struct ospf *ospf) |
718e3744 | 581 | { |
f4e14fdb | 582 | struct vrf *vrf = vrf_lookup_by_id(ospf->vrf_id); |
d62a17ae | 583 | struct route_node *rn; |
584 | struct ospf_nbr_nbma *nbr_nbma; | |
585 | struct ospf_lsa *lsa; | |
586 | struct interface *ifp; | |
587 | struct ospf_interface *oi; | |
588 | struct ospf_area *area; | |
589 | struct ospf_vl_data *vl_data; | |
590 | struct listnode *node, *nnode; | |
591 | int i; | |
592 | u_short instance = 0; | |
7c8ff89e | 593 | |
d62a17ae | 594 | QOBJ_UNREG(ospf); |
7c8ff89e | 595 | |
d62a17ae | 596 | ospf_opaque_type11_lsa_term(ospf); |
953cde65 | 597 | |
046460a1 | 598 | ospf_flush_self_originated_lsas_now(ospf); |
953cde65 | 599 | |
d62a17ae | 600 | /* Unregister redistribution */ |
601 | for (i = 0; i < ZEBRA_ROUTE_MAX; i++) { | |
602 | struct list *red_list; | |
603 | struct ospf_redist *red; | |
718e3744 | 604 | |
d62a17ae | 605 | red_list = ospf->redist[i]; |
606 | if (!red_list) | |
607 | continue; | |
718e3744 | 608 | |
d62a17ae | 609 | for (ALL_LIST_ELEMENTS(red_list, node, nnode, red)) |
610 | ospf_redistribute_unset(ospf, i, red->instance); | |
611 | } | |
612 | ospf_redistribute_default_unset(ospf); | |
718e3744 | 613 | |
d62a17ae | 614 | for (ALL_LIST_ELEMENTS(ospf->areas, node, nnode, area)) |
615 | ospf_remove_vls_through_area(ospf, area); | |
718e3744 | 616 | |
d62a17ae | 617 | for (ALL_LIST_ELEMENTS(ospf->vlinks, node, nnode, vl_data)) |
618 | ospf_vl_delete(ospf, vl_data); | |
718e3744 | 619 | |
affe9e99 | 620 | list_delete_and_null(&ospf->vlinks); |
718e3744 | 621 | |
d62a17ae | 622 | /* Remove any ospf interface config params */ |
451fda4f | 623 | FOR_ALL_INTERFACES (vrf, ifp) { |
d62a17ae | 624 | struct ospf_if_params *params; |
718e3744 | 625 | |
d62a17ae | 626 | params = IF_DEF_PARAMS(ifp); |
627 | if (OSPF_IF_PARAM_CONFIGURED(params, if_area)) | |
628 | UNSET_IF_PARAM(params, if_area); | |
718e3744 | 629 | } |
718e3744 | 630 | |
d62a17ae | 631 | /* Reset interface. */ |
632 | for (ALL_LIST_ELEMENTS(ospf->oiflist, node, nnode, oi)) | |
633 | ospf_if_free(oi); | |
84519c81 | 634 | list_delete_and_null(&ospf->oiflist); |
718e3744 | 635 | |
b5a8894d CS |
636 | /* De-Register VRF */ |
637 | ospf_zebra_vrf_deregister(ospf); | |
638 | ||
d62a17ae | 639 | /* Clear static neighbors */ |
640 | for (rn = route_top(ospf->nbr_nbma); rn; rn = route_next(rn)) | |
641 | if ((nbr_nbma = rn->info)) { | |
642 | OSPF_POLL_TIMER_OFF(nbr_nbma->t_poll); | |
718e3744 | 643 | |
d62a17ae | 644 | if (nbr_nbma->nbr) { |
645 | nbr_nbma->nbr->nbr_nbma = NULL; | |
646 | nbr_nbma->nbr = NULL; | |
647 | } | |
648 | ||
649 | if (nbr_nbma->oi) { | |
650 | listnode_delete(nbr_nbma->oi->nbr_nbma, | |
651 | nbr_nbma); | |
652 | nbr_nbma->oi = NULL; | |
653 | } | |
654 | ||
655 | XFREE(MTYPE_OSPF_NEIGHBOR_STATIC, nbr_nbma); | |
656 | } | |
657 | ||
658 | route_table_finish(ospf->nbr_nbma); | |
659 | ||
660 | /* Clear networks and Areas. */ | |
661 | for (rn = route_top(ospf->networks); rn; rn = route_next(rn)) { | |
662 | struct ospf_network *network; | |
663 | ||
664 | if ((network = rn->info) != NULL) { | |
665 | ospf_network_free(ospf, network); | |
666 | rn->info = NULL; | |
667 | route_unlock_node(rn); | |
668 | } | |
91e6a0e5 | 669 | } |
7f586094 | 670 | route_table_finish(ospf->networks); |
718e3744 | 671 | |
d62a17ae | 672 | for (ALL_LIST_ELEMENTS(ospf->areas, node, nnode, area)) { |
673 | listnode_delete(ospf->areas, area); | |
674 | ospf_area_free(area); | |
675 | } | |
718e3744 | 676 | |
d62a17ae | 677 | /* Cancel all timers. */ |
678 | OSPF_TIMER_OFF(ospf->t_external_lsa); | |
679 | OSPF_TIMER_OFF(ospf->t_spf_calc); | |
680 | OSPF_TIMER_OFF(ospf->t_ase_calc); | |
681 | OSPF_TIMER_OFF(ospf->t_maxage); | |
682 | OSPF_TIMER_OFF(ospf->t_maxage_walker); | |
683 | OSPF_TIMER_OFF(ospf->t_abr_task); | |
684 | OSPF_TIMER_OFF(ospf->t_asbr_check); | |
685 | OSPF_TIMER_OFF(ospf->t_distribute_update); | |
686 | OSPF_TIMER_OFF(ospf->t_lsa_refresher); | |
687 | OSPF_TIMER_OFF(ospf->t_read); | |
688 | OSPF_TIMER_OFF(ospf->t_write); | |
689 | OSPF_TIMER_OFF(ospf->t_opaque_lsa_self); | |
690 | ||
691 | close(ospf->fd); | |
692 | stream_free(ospf->ibuf); | |
693 | ||
694 | LSDB_LOOP(OPAQUE_AS_LSDB(ospf), rn, lsa) | |
044506e7 | 695 | ospf_discard_from_db(ospf, ospf->lsdb, lsa); |
d62a17ae | 696 | LSDB_LOOP(EXTERNAL_LSDB(ospf), rn, lsa) |
044506e7 | 697 | ospf_discard_from_db(ospf, ospf->lsdb, lsa); |
d62a17ae | 698 | |
699 | ospf_lsdb_delete_all(ospf->lsdb); | |
700 | ospf_lsdb_free(ospf->lsdb); | |
701 | ||
702 | for (rn = route_top(ospf->maxage_lsa); rn; rn = route_next(rn)) { | |
703 | struct ospf_lsa *lsa; | |
704 | ||
705 | if ((lsa = rn->info) != NULL) { | |
706 | ospf_lsa_unlock(&lsa); | |
707 | rn->info = NULL; | |
708 | } | |
709 | route_unlock_node(rn); | |
710 | } | |
711 | route_table_finish(ospf->maxage_lsa); | |
712 | ||
713 | if (ospf->old_table) | |
714 | ospf_route_table_free(ospf->old_table); | |
715 | if (ospf->new_table) { | |
b5a8894d | 716 | ospf_route_delete(ospf, ospf->new_table); |
d62a17ae | 717 | ospf_route_table_free(ospf->new_table); |
718 | } | |
719 | if (ospf->old_rtrs) | |
720 | ospf_rtrs_free(ospf->old_rtrs); | |
721 | if (ospf->new_rtrs) | |
722 | ospf_rtrs_free(ospf->new_rtrs); | |
723 | if (ospf->new_external_route) { | |
b5a8894d | 724 | ospf_route_delete(ospf, ospf->new_external_route); |
d62a17ae | 725 | ospf_route_table_free(ospf->new_external_route); |
726 | } | |
727 | if (ospf->old_external_route) { | |
b5a8894d | 728 | ospf_route_delete(ospf, ospf->old_external_route); |
d62a17ae | 729 | ospf_route_table_free(ospf->old_external_route); |
730 | } | |
731 | if (ospf->external_lsas) { | |
732 | ospf_ase_external_lsas_finish(ospf->external_lsas); | |
733 | } | |
718e3744 | 734 | |
affe9e99 DS |
735 | list_delete_and_null(&ospf->areas); |
736 | list_delete_and_null(&ospf->oi_write_q); | |
d62a17ae | 737 | |
738 | for (i = ZEBRA_ROUTE_SYSTEM; i <= ZEBRA_ROUTE_MAX; i++) { | |
739 | struct list *ext_list; | |
740 | struct listnode *node; | |
741 | struct ospf_external *ext; | |
742 | ||
de1ac5fd | 743 | ext_list = ospf->external[i]; |
d62a17ae | 744 | if (!ext_list) |
745 | continue; | |
746 | ||
747 | for (ALL_LIST_ELEMENTS_RO(ext_list, node, ext)) { | |
748 | if (ext->external_info) | |
749 | for (rn = route_top(ext->external_info); rn; | |
750 | rn = route_next(rn)) { | |
751 | if (rn->info == NULL) | |
752 | continue; | |
753 | ||
754 | XFREE(MTYPE_OSPF_EXTERNAL_INFO, | |
755 | rn->info); | |
756 | rn->info = NULL; | |
757 | route_unlock_node(rn); | |
758 | } | |
759 | } | |
760 | } | |
718e3744 | 761 | |
d62a17ae | 762 | ospf_distance_reset(ospf); |
763 | route_table_finish(ospf->distance_table); | |
7c8ff89e | 764 | |
d62a17ae | 765 | if (!CHECK_FLAG(om->options, OSPF_MASTER_SHUTDOWN)) |
766 | instance = ospf->instance; | |
718e3744 | 767 | |
d62a17ae | 768 | ospf_delete(ospf); |
7c8ff89e | 769 | |
b5a8894d CS |
770 | if (ospf->name) { |
771 | vrf = vrf_lookup_by_name(ospf->name); | |
772 | if (vrf) | |
773 | ospf_vrf_unlink(ospf, vrf); | |
774 | XFREE(MTYPE_OSPF_TOP, ospf->name); | |
775 | } else { | |
776 | vrf = vrf_lookup_by_id(VRF_DEFAULT); | |
777 | if (vrf) | |
778 | ospf_vrf_unlink(ospf, vrf); | |
779 | } | |
780 | ||
d62a17ae | 781 | XFREE(MTYPE_OSPF_TOP, ospf); |
7c8ff89e | 782 | |
d62a17ae | 783 | if (!CHECK_FLAG(om->options, OSPF_MASTER_SHUTDOWN)) |
784 | ospf_get_instance(instance); | |
718e3744 | 785 | } |
786 | ||
6b0655a2 | 787 | |
718e3744 | 788 | /* allocate new OSPF Area object */ |
d62a17ae | 789 | static struct ospf_area *ospf_area_new(struct ospf *ospf, |
790 | struct in_addr area_id) | |
718e3744 | 791 | { |
d62a17ae | 792 | struct ospf_area *new; |
718e3744 | 793 | |
d62a17ae | 794 | /* Allocate new config_network. */ |
795 | new = XCALLOC(MTYPE_OSPF_AREA, sizeof(struct ospf_area)); | |
718e3744 | 796 | |
d62a17ae | 797 | new->ospf = ospf; |
718e3744 | 798 | |
d62a17ae | 799 | new->area_id = area_id; |
800 | new->area_id_fmt = OSPF_AREA_ID_FMT_DOTTEDQUAD; | |
718e3744 | 801 | |
d62a17ae | 802 | new->external_routing = OSPF_AREA_DEFAULT; |
803 | new->default_cost = 1; | |
804 | new->auth_type = OSPF_AUTH_NULL; | |
718e3744 | 805 | |
d62a17ae | 806 | /* New LSDB init. */ |
807 | new->lsdb = ospf_lsdb_new(); | |
718e3744 | 808 | |
d62a17ae | 809 | /* Self-originated LSAs initialize. */ |
810 | new->router_lsa_self = NULL; | |
718e3744 | 811 | |
d62a17ae | 812 | ospf_opaque_type10_lsa_init(new); |
718e3744 | 813 | |
d62a17ae | 814 | new->oiflist = list_new(); |
815 | new->ranges = route_table_init(); | |
718e3744 | 816 | |
d62a17ae | 817 | if (area_id.s_addr == OSPF_AREA_BACKBONE) |
818 | ospf->backbone = new; | |
819 | ||
820 | return new; | |
718e3744 | 821 | } |
822 | ||
d62a17ae | 823 | static void ospf_area_free(struct ospf_area *area) |
718e3744 | 824 | { |
d62a17ae | 825 | struct route_node *rn; |
826 | struct ospf_lsa *lsa; | |
827 | ||
7f7f77a0 DS |
828 | ospf_opaque_type10_lsa_term(area); |
829 | ||
d62a17ae | 830 | /* Free LSDBs. */ |
831 | LSDB_LOOP(ROUTER_LSDB(area), rn, lsa) | |
044506e7 | 832 | ospf_discard_from_db(area->ospf, area->lsdb, lsa); |
d62a17ae | 833 | LSDB_LOOP(NETWORK_LSDB(area), rn, lsa) |
044506e7 | 834 | ospf_discard_from_db(area->ospf, area->lsdb, lsa); |
d62a17ae | 835 | LSDB_LOOP(SUMMARY_LSDB(area), rn, lsa) |
044506e7 | 836 | ospf_discard_from_db(area->ospf, area->lsdb, lsa); |
d62a17ae | 837 | LSDB_LOOP(ASBR_SUMMARY_LSDB(area), rn, lsa) |
044506e7 | 838 | ospf_discard_from_db(area->ospf, area->lsdb, lsa); |
68980084 | 839 | |
d62a17ae | 840 | LSDB_LOOP(NSSA_LSDB(area), rn, lsa) |
044506e7 | 841 | ospf_discard_from_db(area->ospf, area->lsdb, lsa); |
d62a17ae | 842 | LSDB_LOOP(OPAQUE_AREA_LSDB(area), rn, lsa) |
044506e7 | 843 | ospf_discard_from_db(area->ospf, area->lsdb, lsa); |
d62a17ae | 844 | LSDB_LOOP(OPAQUE_LINK_LSDB(area), rn, lsa) |
044506e7 | 845 | ospf_discard_from_db(area->ospf, area->lsdb, lsa); |
718e3744 | 846 | |
7f586094 | 847 | ospf_opaque_type10_lsa_term(area); |
d62a17ae | 848 | ospf_lsdb_delete_all(area->lsdb); |
849 | ospf_lsdb_free(area->lsdb); | |
718e3744 | 850 | |
d62a17ae | 851 | ospf_lsa_unlock(&area->router_lsa_self); |
718e3744 | 852 | |
d62a17ae | 853 | route_table_finish(area->ranges); |
affe9e99 | 854 | list_delete_and_null(&area->oiflist); |
718e3744 | 855 | |
d62a17ae | 856 | if (EXPORT_NAME(area)) |
857 | free(EXPORT_NAME(area)); | |
718e3744 | 858 | |
d62a17ae | 859 | if (IMPORT_NAME(area)) |
860 | free(IMPORT_NAME(area)); | |
718e3744 | 861 | |
d62a17ae | 862 | /* Cancel timer. */ |
863 | OSPF_TIMER_OFF(area->t_stub_router); | |
864 | OSPF_TIMER_OFF(area->t_opaque_lsa_self); | |
718e3744 | 865 | |
d62a17ae | 866 | if (OSPF_IS_AREA_BACKBONE(area)) |
867 | area->ospf->backbone = NULL; | |
868 | ||
869 | XFREE(MTYPE_OSPF_AREA, area); | |
718e3744 | 870 | } |
871 | ||
d62a17ae | 872 | void ospf_area_check_free(struct ospf *ospf, struct in_addr area_id) |
718e3744 | 873 | { |
d62a17ae | 874 | struct ospf_area *area; |
718e3744 | 875 | |
d62a17ae | 876 | area = ospf_area_lookup_by_area_id(ospf, area_id); |
877 | if (area && listcount(area->oiflist) == 0 && area->ranges->top == NULL | |
878 | && area->shortcut_configured == OSPF_SHORTCUT_DEFAULT | |
879 | && area->external_routing == OSPF_AREA_DEFAULT | |
880 | && area->no_summary == 0 && area->default_cost == 1 | |
881 | && EXPORT_NAME(area) == NULL && IMPORT_NAME(area) == NULL | |
882 | && area->auth_type == OSPF_AUTH_NULL) { | |
883 | listnode_delete(ospf->areas, area); | |
884 | ospf_area_free(area); | |
885 | } | |
718e3744 | 886 | } |
887 | ||
d62a17ae | 888 | struct ospf_area *ospf_area_get(struct ospf *ospf, struct in_addr area_id) |
718e3744 | 889 | { |
d62a17ae | 890 | struct ospf_area *area; |
891 | ||
892 | area = ospf_area_lookup_by_area_id(ospf, area_id); | |
893 | if (!area) { | |
894 | area = ospf_area_new(ospf, area_id); | |
895 | listnode_add_sort(ospf->areas, area); | |
896 | ospf_check_abr_status(ospf); | |
897 | if (ospf->stub_router_admin_set | |
898 | == OSPF_STUB_ROUTER_ADMINISTRATIVE_SET) { | |
899 | SET_FLAG(area->stub_router_state, | |
900 | OSPF_AREA_ADMIN_STUB_ROUTED); | |
901 | } | |
902 | } | |
718e3744 | 903 | |
d62a17ae | 904 | return area; |
718e3744 | 905 | } |
906 | ||
d62a17ae | 907 | struct ospf_area *ospf_area_lookup_by_area_id(struct ospf *ospf, |
908 | struct in_addr area_id) | |
718e3744 | 909 | { |
d62a17ae | 910 | struct ospf_area *area; |
911 | struct listnode *node; | |
718e3744 | 912 | |
d62a17ae | 913 | for (ALL_LIST_ELEMENTS_RO(ospf->areas, node, area)) |
914 | if (IPV4_ADDR_SAME(&area->area_id, &area_id)) | |
915 | return area; | |
718e3744 | 916 | |
d62a17ae | 917 | return NULL; |
718e3744 | 918 | } |
919 | ||
d62a17ae | 920 | void ospf_area_add_if(struct ospf_area *area, struct ospf_interface *oi) |
718e3744 | 921 | { |
d62a17ae | 922 | listnode_add(area->oiflist, oi); |
718e3744 | 923 | } |
924 | ||
d62a17ae | 925 | void ospf_area_del_if(struct ospf_area *area, struct ospf_interface *oi) |
718e3744 | 926 | { |
d62a17ae | 927 | listnode_delete(area->oiflist, oi); |
718e3744 | 928 | } |
929 | ||
52c62ab8 | 930 | |
d62a17ae | 931 | static void add_ospf_interface(struct connected *co, struct ospf_area *area) |
953cde65 | 932 | { |
d62a17ae | 933 | struct ospf_interface *oi; |
953cde65 | 934 | |
d62a17ae | 935 | oi = ospf_if_new(area->ospf, co->ifp, co->address); |
936 | oi->connected = co; | |
953cde65 | 937 | |
d62a17ae | 938 | oi->area = area; |
953cde65 | 939 | |
d62a17ae | 940 | oi->params = ospf_lookup_if_params(co->ifp, oi->address->u.prefix4); |
941 | oi->output_cost = ospf_if_get_output_cost(oi); | |
953cde65 | 942 | |
d62a17ae | 943 | /* Relate ospf interface to ospf instance. */ |
944 | oi->ospf = area->ospf; | |
953cde65 | 945 | |
d62a17ae | 946 | /* update network type as interface flag */ |
947 | /* If network type is specified previously, | |
948 | skip network type setting. */ | |
949 | oi->type = IF_DEF_PARAMS(co->ifp)->type; | |
953cde65 | 950 | |
d62a17ae | 951 | /* Add pseudo neighbor. */ |
952 | ospf_nbr_self_reset(oi, oi->ospf->router_id); | |
953cde65 | 953 | |
d62a17ae | 954 | ospf_area_add_if(oi->area, oi); |
52c62ab8 | 955 | |
d62a17ae | 956 | /* |
957 | * if router_id is not configured, dont bring up | |
958 | * interfaces. | |
959 | * ospf_router_id_update() will call ospf_if_update | |
960 | * whenever r-id is configured instead. | |
961 | */ | |
962 | if ((area->ospf->router_id.s_addr != 0) && if_is_operative(co->ifp)) | |
963 | ospf_if_up(oi); | |
953cde65 JT |
964 | } |
965 | ||
966 | static void update_redistributed(struct ospf *ospf, int add_to_ospf) | |
967 | { | |
d62a17ae | 968 | struct route_node *rn; |
969 | struct external_info *ei; | |
970 | struct ospf_external *ext; | |
971 | ||
de1ac5fd CS |
972 | if (ospf_is_type_redistributed(ospf, ZEBRA_ROUTE_CONNECT, 0)) { |
973 | ext = ospf_external_lookup(ospf, ZEBRA_ROUTE_CONNECT, 0); | |
974 | if ((ext) && EXTERNAL_INFO(ext)) { | |
d62a17ae | 975 | for (rn = route_top(EXTERNAL_INFO(ext)); rn; |
976 | rn = route_next(rn)) { | |
de1ac5fd CS |
977 | ei = rn->info; |
978 | if (ei == NULL) | |
979 | continue; | |
980 | ||
981 | if (add_to_ospf) { | |
982 | if (ospf_external_info_find_lsa( | |
983 | ospf, &ei->p)) | |
984 | if (!ospf_distribute_check_connected( | |
985 | ospf, ei)) | |
986 | ospf_external_lsa_flush( | |
987 | ospf, | |
988 | ei->type, | |
989 | &ei->p, | |
990 | ei->ifindex /*, ei->nexthop */); | |
991 | } else { | |
992 | if (!ospf_external_info_find_lsa( | |
993 | ospf, &ei->p)) | |
994 | if (ospf_distribute_check_connected( | |
995 | ospf, ei)) | |
996 | ospf_external_lsa_originate( | |
997 | ospf, | |
998 | ei); | |
d62a17ae | 999 | } |
1000 | } | |
1001 | } | |
de1ac5fd | 1002 | } |
953cde65 JT |
1003 | } |
1004 | ||
718e3744 | 1005 | /* Config network statement related functions. */ |
d62a17ae | 1006 | static struct ospf_network *ospf_network_new(struct in_addr area_id) |
718e3744 | 1007 | { |
d62a17ae | 1008 | struct ospf_network *new; |
1009 | new = XCALLOC(MTYPE_OSPF_NETWORK, sizeof(struct ospf_network)); | |
718e3744 | 1010 | |
d62a17ae | 1011 | new->area_id = area_id; |
1012 | new->area_id_fmt = OSPF_AREA_ID_FMT_DOTTEDQUAD; | |
1013 | ||
1014 | return new; | |
718e3744 | 1015 | } |
1016 | ||
d62a17ae | 1017 | static void ospf_network_free(struct ospf *ospf, struct ospf_network *network) |
718e3744 | 1018 | { |
d62a17ae | 1019 | ospf_area_check_free(ospf, network->area_id); |
1020 | ospf_schedule_abr_task(ospf); | |
1021 | XFREE(MTYPE_OSPF_NETWORK, network); | |
718e3744 | 1022 | } |
1023 | ||
d62a17ae | 1024 | int ospf_network_set(struct ospf *ospf, struct prefix_ipv4 *p, |
1025 | struct in_addr area_id, int df) | |
718e3744 | 1026 | { |
d62a17ae | 1027 | struct ospf_network *network; |
1028 | struct ospf_area *area; | |
1029 | struct route_node *rn; | |
718e3744 | 1030 | |
d62a17ae | 1031 | rn = route_node_get(ospf->networks, (struct prefix *)p); |
1032 | if (rn->info) { | |
2b0a905a | 1033 | network = rn->info; |
d62a17ae | 1034 | route_unlock_node(rn); |
2b0a905a DW |
1035 | |
1036 | if (IPV4_ADDR_SAME(&area_id, &network->area_id)) { | |
1037 | return 1; | |
1038 | } else { | |
1039 | /* There is already same network statement. */ | |
1040 | return 0; | |
1041 | } | |
d62a17ae | 1042 | } |
718e3744 | 1043 | |
d62a17ae | 1044 | rn->info = network = ospf_network_new(area_id); |
1045 | network->area_id_fmt = df; | |
1046 | area = ospf_area_get(ospf, area_id); | |
1047 | ospf_area_display_format_set(ospf, area, df); | |
718e3744 | 1048 | |
d62a17ae | 1049 | /* Run network config now. */ |
1050 | ospf_network_run((struct prefix *)p, area); | |
718e3744 | 1051 | |
d62a17ae | 1052 | /* Update connected redistribute. */ |
1053 | update_redistributed(ospf, 1); /* interfaces possibly added */ | |
718e3744 | 1054 | |
d62a17ae | 1055 | ospf_area_check_free(ospf, area_id); |
718e3744 | 1056 | |
d62a17ae | 1057 | return 1; |
718e3744 | 1058 | } |
1059 | ||
d62a17ae | 1060 | int ospf_network_unset(struct ospf *ospf, struct prefix_ipv4 *p, |
1061 | struct in_addr area_id) | |
718e3744 | 1062 | { |
d62a17ae | 1063 | struct route_node *rn; |
1064 | struct ospf_network *network; | |
1065 | struct listnode *node, *nnode; | |
1066 | struct ospf_interface *oi; | |
718e3744 | 1067 | |
d62a17ae | 1068 | rn = route_node_lookup(ospf->networks, (struct prefix *)p); |
1069 | if (rn == NULL) | |
1070 | return 0; | |
718e3744 | 1071 | |
d62a17ae | 1072 | network = rn->info; |
1073 | route_unlock_node(rn); | |
1074 | if (!IPV4_ADDR_SAME(&area_id, &network->area_id)) | |
1075 | return 0; | |
718e3744 | 1076 | |
d62a17ae | 1077 | ospf_network_free(ospf, rn->info); |
1078 | rn->info = NULL; | |
1079 | route_unlock_node(rn); /* initial reference */ | |
718e3744 | 1080 | |
30c0daa4 | 1081 | /* Find interfaces that are not configured already. */ |
d62a17ae | 1082 | for (ALL_LIST_ELEMENTS(ospf->oiflist, node, nnode, oi)) { |
30c0daa4 JAG |
1083 | |
1084 | if (oi->type == OSPF_IFTYPE_VIRTUALLINK) | |
1085 | continue; | |
1086 | ||
1087 | ospf_network_run_subnet(ospf, oi->connected, NULL, NULL); | |
d62a17ae | 1088 | } |
953cde65 | 1089 | |
d62a17ae | 1090 | /* Update connected redistribute. */ |
1091 | update_redistributed(ospf, 0); /* interfaces possibly removed */ | |
1092 | ospf_area_check_free(ospf, area_id); | |
1093 | ||
1094 | return 1; | |
953cde65 JT |
1095 | } |
1096 | ||
52c62ab8 JAG |
1097 | /* Ensure there's an OSPF instance, as "ip ospf area" enabled OSPF means |
1098 | * there might not be any 'router ospf' config. | |
1099 | * | |
1100 | * Otherwise, doesn't do anything different to ospf_if_update for now | |
1101 | */ | |
b5a8894d | 1102 | void ospf_interface_area_set(struct ospf *ospf, struct interface *ifp) |
953cde65 | 1103 | { |
b5a8894d CS |
1104 | if (!ospf) |
1105 | return; | |
d62a17ae | 1106 | |
1107 | ospf_if_update(ospf, ifp); | |
1108 | /* if_update does a update_redistributed */ | |
1109 | ||
1110 | return; | |
953cde65 JT |
1111 | } |
1112 | ||
b5a8894d | 1113 | void ospf_interface_area_unset(struct ospf *ospf, struct interface *ifp) |
953cde65 | 1114 | { |
d62a17ae | 1115 | struct route_node *rn_oi; |
953cde65 | 1116 | |
d62a17ae | 1117 | if (!ospf) |
1118 | return; /* Ospf not ready yet */ | |
953cde65 | 1119 | |
d62a17ae | 1120 | /* Find interfaces that may need to be removed. */ |
1121 | for (rn_oi = route_top(IF_OIFS(ifp)); rn_oi; | |
1122 | rn_oi = route_next(rn_oi)) { | |
b5a8894d | 1123 | struct ospf_interface *oi = NULL; |
d62a17ae | 1124 | |
1125 | if ((oi = rn_oi->info) == NULL) | |
1126 | continue; | |
1127 | ||
1128 | if (oi->type == OSPF_IFTYPE_VIRTUALLINK) | |
1129 | continue; | |
1130 | ||
1131 | ospf_network_run_subnet(ospf, oi->connected, NULL, NULL); | |
1132 | } | |
953cde65 | 1133 | |
d62a17ae | 1134 | /* Update connected redistribute. */ |
1135 | update_redistributed(ospf, 0); /* interfaces possibly removed */ | |
718e3744 | 1136 | } |
1137 | ||
570f7598 | 1138 | /* Check whether interface matches given network |
1139 | * returns: 1, true. 0, false | |
1140 | */ | |
d62a17ae | 1141 | static int ospf_network_match_iface(const struct connected *co, |
1142 | const struct prefix *net) | |
570f7598 | 1143 | { |
d62a17ae | 1144 | /* new approach: more elegant and conceptually clean */ |
1145 | return prefix_match_network_statement(net, CONNECTED_PREFIX(co)); | |
570f7598 | 1146 | } |
1147 | ||
d62a17ae | 1148 | static void ospf_update_interface_area(struct connected *co, |
1149 | struct ospf_area *area) | |
52c62ab8 | 1150 | { |
d62a17ae | 1151 | struct ospf_interface *oi = ospf_if_table_lookup(co->ifp, co->address); |
1152 | ||
1153 | /* nothing to be done case */ | |
1154 | if (oi && oi->area == area) { | |
1155 | return; | |
1156 | } | |
1157 | ||
1158 | if (oi) | |
1159 | ospf_if_free(oi); | |
1160 | ||
1161 | add_ospf_interface(co, area); | |
52c62ab8 JAG |
1162 | } |
1163 | ||
1164 | /* Run OSPF for the given subnet, taking into account the following | |
1165 | * possible sources of area configuration, in the given order of preference: | |
1166 | * | |
1167 | * - Whether there is interface+address specific area configuration | |
1168 | * - Whether there is a default area for the interface | |
1169 | * - Whether there is an area given as a parameter. | |
1170 | * - If no specific network prefix/area is supplied, whether there's | |
1171 | * a matching network configured. | |
1172 | */ | |
d62a17ae | 1173 | static void ospf_network_run_subnet(struct ospf *ospf, struct connected *co, |
1174 | struct prefix *p, | |
1175 | struct ospf_area *given_area) | |
1176 | { | |
1177 | struct ospf_interface *oi; | |
1178 | struct ospf_if_params *params; | |
1179 | struct ospf_area *area = NULL; | |
1180 | struct route_node *rn; | |
1181 | int configed = 0; | |
1182 | ||
1183 | if (CHECK_FLAG(co->flags, ZEBRA_IFA_SECONDARY)) | |
1184 | return; | |
1185 | ||
1186 | if (co->address->family != AF_INET) | |
1187 | return; | |
1188 | ||
1189 | /* Try determine the appropriate area for this interface + address | |
1190 | * Start by checking interface config | |
1191 | */ | |
1192 | params = ospf_lookup_if_params(co->ifp, co->address->u.prefix4); | |
1193 | if (params && OSPF_IF_PARAM_CONFIGURED(params, if_area)) | |
1194 | area = ospf_area_get(ospf, params->if_area); | |
1195 | else { | |
1196 | params = IF_DEF_PARAMS(co->ifp); | |
1197 | if (OSPF_IF_PARAM_CONFIGURED(params, if_area)) | |
1198 | area = ospf_area_get(ospf, params->if_area); | |
1199 | } | |
52c62ab8 | 1200 | |
d62a17ae | 1201 | /* If we've found an interface and/or addr specific area, then we're |
1202 | * done | |
1203 | */ | |
1204 | if (area) { | |
1205 | ospf_update_interface_area(co, area); | |
1206 | return; | |
1207 | } | |
718e3744 | 1208 | |
d62a17ae | 1209 | /* Otherwise, only remaining possibility is a matching network statement |
1210 | */ | |
1211 | if (p) { | |
1212 | assert(given_area != NULL); | |
1213 | ||
1214 | /* Which either was supplied as a parameter.. (e.g. cause a new | |
1215 | * network/area was just added).. | |
1216 | */ | |
1217 | if (p->family == co->address->family | |
1218 | && ospf_network_match_iface(co, p)) | |
1219 | ospf_update_interface_area(co, given_area); | |
1220 | ||
1221 | return; | |
1222 | } | |
1223 | ||
1224 | /* Else we have to search the existing network/area config to see | |
1225 | * if any match.. | |
1226 | */ | |
1227 | for (rn = route_top(ospf->networks); rn; rn = route_next(rn)) | |
1228 | if (rn->info != NULL && ospf_network_match_iface(co, &rn->p)) { | |
1229 | struct ospf_network *network = | |
1230 | (struct ospf_network *)rn->info; | |
1231 | area = ospf_area_get(ospf, network->area_id); | |
1232 | ospf_update_interface_area(co, area); | |
1233 | configed = 1; | |
1234 | } | |
1235 | ||
1236 | /* If the subnet isn't in any area, deconfigure */ | |
1237 | if (!configed && (oi = ospf_if_table_lookup(co->ifp, co->address))) | |
1238 | ospf_if_free(oi); | |
718e3744 | 1239 | } |
1240 | ||
d62a17ae | 1241 | static void ospf_network_run_interface(struct ospf *ospf, struct interface *ifp, |
1242 | struct prefix *p, | |
1243 | struct ospf_area *given_area) | |
718e3744 | 1244 | { |
d62a17ae | 1245 | struct listnode *cnode; |
1246 | struct connected *co; | |
1247 | ||
1248 | if (memcmp(ifp->name, "VLINK", 5) == 0) | |
1249 | return; | |
718e3744 | 1250 | |
d62a17ae | 1251 | /* Network prefix without area is nonsensical */ |
1252 | if (p) | |
1253 | assert(given_area != NULL); | |
1254 | ||
1255 | /* if interface prefix is match specified prefix, | |
1256 | then create socket and join multicast group. */ | |
1257 | for (ALL_LIST_ELEMENTS_RO(ifp->connected, cnode, co)) | |
1258 | ospf_network_run_subnet(ospf, co, p, given_area); | |
718e3744 | 1259 | } |
1260 | ||
d62a17ae | 1261 | static void ospf_network_run(struct prefix *p, struct ospf_area *area) |
718e3744 | 1262 | { |
f4e14fdb | 1263 | struct vrf *vrf = vrf_lookup_by_id(area->ospf->vrf_id); |
d62a17ae | 1264 | struct interface *ifp; |
d62a17ae | 1265 | |
1266 | /* Schedule Router ID Update. */ | |
1267 | if (area->ospf->router_id.s_addr == 0) | |
1268 | ospf_router_id_update(area->ospf); | |
718e3744 | 1269 | |
d62a17ae | 1270 | /* Get target interface. */ |
451fda4f | 1271 | FOR_ALL_INTERFACES (vrf, ifp) |
d62a17ae | 1272 | ospf_network_run_interface(area->ospf, ifp, p, area); |
718e3744 | 1273 | } |
1274 | ||
d62a17ae | 1275 | void ospf_ls_upd_queue_empty(struct ospf_interface *oi) |
1276 | { | |
1277 | struct route_node *rn; | |
1278 | struct listnode *node, *nnode; | |
1279 | struct list *lst; | |
1280 | struct ospf_lsa *lsa; | |
1281 | ||
1282 | /* empty ls update queue */ | |
1283 | for (rn = route_top(oi->ls_upd_queue); rn; rn = route_next(rn)) | |
1284 | if ((lst = (struct list *)rn->info)) { | |
1285 | for (ALL_LIST_ELEMENTS(lst, node, nnode, lsa)) | |
1286 | ospf_lsa_unlock(&lsa); /* oi->ls_upd_queue */ | |
affe9e99 | 1287 | list_delete_and_null(&lst); |
d62a17ae | 1288 | rn->info = NULL; |
1289 | } | |
1290 | ||
1291 | /* remove update event */ | |
1292 | if (oi->t_ls_upd_event) { | |
1293 | thread_cancel(oi->t_ls_upd_event); | |
1294 | oi->t_ls_upd_event = NULL; | |
1295 | } | |
1296 | } | |
6b0655a2 | 1297 | |
d62a17ae | 1298 | void ospf_if_update(struct ospf *ospf, struct interface *ifp) |
718e3744 | 1299 | { |
43b8d1d8 | 1300 | |
d62a17ae | 1301 | if (!ospf) |
43b8d1d8 | 1302 | return; |
b5a8894d CS |
1303 | |
1304 | if (IS_DEBUG_OSPF_EVENT) | |
1305 | zlog_debug("%s: interface %s ifp->vrf_id %u ospf vrf %s vrf_id %u router_id %s", | |
1306 | __PRETTY_FUNCTION__, ifp->name, ifp->vrf_id, | |
1307 | ospf_vrf_id_to_name(ospf->vrf_id), ospf->vrf_id, | |
1308 | inet_ntoa(ospf->router_id)); | |
d62a17ae | 1309 | |
1310 | /* OSPF must be ready. */ | |
1311 | if (!ospf_is_ready(ospf)) | |
1312 | return; | |
1313 | ||
1314 | ospf_network_run_interface(ospf, ifp, NULL, NULL); | |
1315 | ||
1316 | /* Update connected redistribute. */ | |
1317 | update_redistributed(ospf, 1); | |
1318 | } | |
718e3744 | 1319 | |
d62a17ae | 1320 | void ospf_remove_vls_through_area(struct ospf *ospf, struct ospf_area *area) |
718e3744 | 1321 | { |
d62a17ae | 1322 | struct listnode *node, *nnode; |
1323 | struct ospf_vl_data *vl_data; | |
718e3744 | 1324 | |
d62a17ae | 1325 | for (ALL_LIST_ELEMENTS(ospf->vlinks, node, nnode, vl_data)) |
1326 | if (IPV4_ADDR_SAME(&vl_data->vl_area_id, &area->area_id)) | |
1327 | ospf_vl_delete(ospf, vl_data); | |
1328 | } | |
718e3744 | 1329 | |
718e3744 | 1330 | |
d62a17ae | 1331 | static const struct message ospf_area_type_msg[] = { |
1332 | {OSPF_AREA_DEFAULT, "Default"}, | |
1333 | {OSPF_AREA_STUB, "Stub"}, | |
1334 | {OSPF_AREA_NSSA, "NSSA"}, | |
1335 | {0}}; | |
718e3744 | 1336 | |
d62a17ae | 1337 | static void ospf_area_type_set(struct ospf_area *area, int type) |
1338 | { | |
1339 | struct listnode *node; | |
1340 | struct ospf_interface *oi; | |
1341 | ||
1342 | if (area->external_routing == type) { | |
1343 | if (IS_DEBUG_OSPF_EVENT) | |
1344 | zlog_debug("Area[%s]: Types are the same, ignored.", | |
1345 | inet_ntoa(area->area_id)); | |
1346 | return; | |
1347 | } | |
718e3744 | 1348 | |
d62a17ae | 1349 | area->external_routing = type; |
1350 | ||
1351 | if (IS_DEBUG_OSPF_EVENT) | |
1352 | zlog_debug("Area[%s]: Configured as %s", | |
1353 | inet_ntoa(area->area_id), | |
1354 | lookup_msg(ospf_area_type_msg, type, NULL)); | |
1355 | ||
1356 | switch (area->external_routing) { | |
1357 | case OSPF_AREA_DEFAULT: | |
1358 | for (ALL_LIST_ELEMENTS_RO(area->oiflist, node, oi)) | |
1359 | if (oi->nbr_self != NULL) { | |
1360 | UNSET_FLAG(oi->nbr_self->options, | |
1361 | OSPF_OPTION_NP); | |
1362 | SET_FLAG(oi->nbr_self->options, OSPF_OPTION_E); | |
1363 | } | |
1364 | break; | |
1365 | case OSPF_AREA_STUB: | |
1366 | for (ALL_LIST_ELEMENTS_RO(area->oiflist, node, oi)) | |
1367 | if (oi->nbr_self != NULL) { | |
1368 | if (IS_DEBUG_OSPF_EVENT) | |
1369 | zlog_debug( | |
1370 | "setting options on %s accordingly", | |
1371 | IF_NAME(oi)); | |
1372 | UNSET_FLAG(oi->nbr_self->options, | |
1373 | OSPF_OPTION_NP); | |
1374 | UNSET_FLAG(oi->nbr_self->options, | |
1375 | OSPF_OPTION_E); | |
1376 | if (IS_DEBUG_OSPF_EVENT) | |
1377 | zlog_debug("options set on %s: %x", | |
1378 | IF_NAME(oi), OPTIONS(oi)); | |
1379 | } | |
1380 | break; | |
1381 | case OSPF_AREA_NSSA: | |
1382 | for (ALL_LIST_ELEMENTS_RO(area->oiflist, node, oi)) | |
1383 | if (oi->nbr_self != NULL) { | |
1384 | zlog_debug( | |
1385 | "setting nssa options on %s accordingly", | |
1386 | IF_NAME(oi)); | |
1387 | UNSET_FLAG(oi->nbr_self->options, | |
1388 | OSPF_OPTION_E); | |
1389 | SET_FLAG(oi->nbr_self->options, OSPF_OPTION_NP); | |
1390 | zlog_debug("options set on %s: %x", IF_NAME(oi), | |
1391 | OPTIONS(oi)); | |
1392 | } | |
1393 | break; | |
1394 | default: | |
1395 | break; | |
1396 | } | |
1397 | ||
1398 | ospf_router_lsa_update_area(area); | |
1399 | ospf_schedule_abr_task(area->ospf); | |
718e3744 | 1400 | } |
1401 | ||
d62a17ae | 1402 | int ospf_area_shortcut_set(struct ospf *ospf, struct ospf_area *area, int mode) |
718e3744 | 1403 | { |
d62a17ae | 1404 | if (area->shortcut_configured == mode) |
1405 | return 0; | |
718e3744 | 1406 | |
d62a17ae | 1407 | area->shortcut_configured = mode; |
1408 | ospf_router_lsa_update_area(area); | |
1409 | ospf_schedule_abr_task(ospf); | |
718e3744 | 1410 | |
d62a17ae | 1411 | ospf_area_check_free(ospf, area->area_id); |
718e3744 | 1412 | |
d62a17ae | 1413 | return 1; |
718e3744 | 1414 | } |
1415 | ||
d62a17ae | 1416 | int ospf_area_shortcut_unset(struct ospf *ospf, struct ospf_area *area) |
718e3744 | 1417 | { |
d62a17ae | 1418 | area->shortcut_configured = OSPF_SHORTCUT_DEFAULT; |
1419 | ospf_router_lsa_update_area(area); | |
1420 | ospf_area_check_free(ospf, area->area_id); | |
1421 | ospf_schedule_abr_task(ospf); | |
718e3744 | 1422 | |
d62a17ae | 1423 | return 1; |
718e3744 | 1424 | } |
1425 | ||
d62a17ae | 1426 | static int ospf_area_vlink_count(struct ospf *ospf, struct ospf_area *area) |
718e3744 | 1427 | { |
d62a17ae | 1428 | struct ospf_vl_data *vl; |
1429 | struct listnode *node; | |
1430 | int count = 0; | |
718e3744 | 1431 | |
d62a17ae | 1432 | for (ALL_LIST_ELEMENTS_RO(ospf->vlinks, node, vl)) |
1433 | if (IPV4_ADDR_SAME(&vl->vl_area_id, &area->area_id)) | |
1434 | count++; | |
718e3744 | 1435 | |
d62a17ae | 1436 | return count; |
718e3744 | 1437 | } |
1438 | ||
d62a17ae | 1439 | int ospf_area_display_format_set(struct ospf *ospf, struct ospf_area *area, |
1440 | int df) | |
86573dcb | 1441 | { |
d62a17ae | 1442 | area->area_id_fmt = df; |
86573dcb | 1443 | |
d62a17ae | 1444 | return 1; |
86573dcb QY |
1445 | } |
1446 | ||
d62a17ae | 1447 | int ospf_area_stub_set(struct ospf *ospf, struct in_addr area_id) |
718e3744 | 1448 | { |
d62a17ae | 1449 | struct ospf_area *area; |
718e3744 | 1450 | |
d62a17ae | 1451 | area = ospf_area_get(ospf, area_id); |
1452 | if (ospf_area_vlink_count(ospf, area)) | |
1453 | return 0; | |
718e3744 | 1454 | |
d62a17ae | 1455 | if (area->external_routing != OSPF_AREA_STUB) |
1456 | ospf_area_type_set(area, OSPF_AREA_STUB); | |
718e3744 | 1457 | |
d62a17ae | 1458 | return 1; |
718e3744 | 1459 | } |
1460 | ||
d62a17ae | 1461 | int ospf_area_stub_unset(struct ospf *ospf, struct in_addr area_id) |
718e3744 | 1462 | { |
d62a17ae | 1463 | struct ospf_area *area; |
718e3744 | 1464 | |
d62a17ae | 1465 | area = ospf_area_lookup_by_area_id(ospf, area_id); |
1466 | if (area == NULL) | |
1467 | return 1; | |
718e3744 | 1468 | |
d62a17ae | 1469 | if (area->external_routing == OSPF_AREA_STUB) |
1470 | ospf_area_type_set(area, OSPF_AREA_DEFAULT); | |
718e3744 | 1471 | |
d62a17ae | 1472 | ospf_area_check_free(ospf, area_id); |
718e3744 | 1473 | |
d62a17ae | 1474 | return 1; |
718e3744 | 1475 | } |
1476 | ||
d62a17ae | 1477 | int ospf_area_no_summary_set(struct ospf *ospf, struct in_addr area_id) |
718e3744 | 1478 | { |
d62a17ae | 1479 | struct ospf_area *area; |
718e3744 | 1480 | |
d62a17ae | 1481 | area = ospf_area_get(ospf, area_id); |
1482 | area->no_summary = 1; | |
718e3744 | 1483 | |
d62a17ae | 1484 | return 1; |
718e3744 | 1485 | } |
1486 | ||
d62a17ae | 1487 | int ospf_area_no_summary_unset(struct ospf *ospf, struct in_addr area_id) |
718e3744 | 1488 | { |
d62a17ae | 1489 | struct ospf_area *area; |
718e3744 | 1490 | |
d62a17ae | 1491 | area = ospf_area_lookup_by_area_id(ospf, area_id); |
1492 | if (area == NULL) | |
1493 | return 0; | |
718e3744 | 1494 | |
d62a17ae | 1495 | area->no_summary = 0; |
1496 | ospf_area_check_free(ospf, area_id); | |
718e3744 | 1497 | |
d62a17ae | 1498 | return 1; |
718e3744 | 1499 | } |
1500 | ||
7ef56a73 | 1501 | int ospf_area_nssa_no_summary_set(struct ospf *ospf, struct in_addr area_id) |
718e3744 | 1502 | { |
d62a17ae | 1503 | struct ospf_area *area; |
718e3744 | 1504 | |
d62a17ae | 1505 | area = ospf_area_get(ospf, area_id); |
1506 | if (ospf_area_vlink_count(ospf, area)) | |
1507 | return 0; | |
718e3744 | 1508 | |
d62a17ae | 1509 | if (area->external_routing != OSPF_AREA_NSSA) { |
1510 | ospf_area_type_set(area, OSPF_AREA_NSSA); | |
1511 | ospf->anyNSSA++; | |
7ef56a73 | 1512 | area->NSSATranslatorRole = OSPF_NSSA_ROLE_CANDIDATE; |
d62a17ae | 1513 | } |
718e3744 | 1514 | |
7ef56a73 | 1515 | ospf_area_no_summary_set(ospf, area_id); |
084c7844 | 1516 | |
d62a17ae | 1517 | return 1; |
718e3744 | 1518 | } |
1519 | ||
7ef56a73 CS |
1520 | int ospf_area_nssa_set(struct ospf *ospf, struct in_addr area_id) |
1521 | { | |
1522 | struct ospf_area *area; | |
1523 | ||
1524 | area = ospf_area_get(ospf, area_id); | |
1525 | if (ospf_area_vlink_count(ospf, area)) | |
1526 | return 0; | |
1527 | ||
1528 | if (area->external_routing != OSPF_AREA_NSSA) { | |
1529 | ospf_area_type_set(area, OSPF_AREA_NSSA); | |
1530 | ospf->anyNSSA++; | |
1531 | ||
1532 | /* set NSSA area defaults */ | |
1533 | area->no_summary = 0; | |
1534 | area->NSSATranslatorRole = OSPF_NSSA_ROLE_CANDIDATE; | |
1535 | area->NSSATranslatorState = OSPF_NSSA_TRANSLATE_DISABLED; | |
1536 | area->NSSATranslatorStabilityInterval = | |
1537 | OSPF_NSSA_TRANS_STABLE_DEFAULT; | |
1538 | } | |
1539 | return 1; | |
1540 | } | |
1541 | ||
1542 | int ospf_area_nssa_unset(struct ospf *ospf, struct in_addr area_id, int argc) | |
718e3744 | 1543 | { |
d62a17ae | 1544 | struct ospf_area *area; |
718e3744 | 1545 | |
d62a17ae | 1546 | area = ospf_area_lookup_by_area_id(ospf, area_id); |
1547 | if (area == NULL) | |
1548 | return 0; | |
718e3744 | 1549 | |
7ef56a73 CS |
1550 | /* argc < 5 -> 'no area x nssa' */ |
1551 | if (argc < 5 && area->external_routing == OSPF_AREA_NSSA) { | |
d62a17ae | 1552 | ospf->anyNSSA--; |
7ef56a73 CS |
1553 | /* set NSSA area defaults */ |
1554 | area->no_summary = 0; | |
1555 | area->NSSATranslatorRole = OSPF_NSSA_ROLE_CANDIDATE; | |
1556 | area->NSSATranslatorState = OSPF_NSSA_TRANSLATE_DISABLED; | |
1557 | area->NSSATranslatorStabilityInterval = | |
1558 | OSPF_NSSA_TRANS_STABLE_DEFAULT; | |
d62a17ae | 1559 | ospf_area_type_set(area, OSPF_AREA_DEFAULT); |
7ef56a73 CS |
1560 | } else { |
1561 | area->NSSATranslatorRole = OSPF_NSSA_ROLE_CANDIDATE; | |
d62a17ae | 1562 | } |
718e3744 | 1563 | |
d62a17ae | 1564 | ospf_area_check_free(ospf, area_id); |
718e3744 | 1565 | |
d62a17ae | 1566 | return 1; |
718e3744 | 1567 | } |
1568 | ||
d62a17ae | 1569 | int ospf_area_nssa_translator_role_set(struct ospf *ospf, |
1570 | struct in_addr area_id, int role) | |
718e3744 | 1571 | { |
d62a17ae | 1572 | struct ospf_area *area; |
718e3744 | 1573 | |
d62a17ae | 1574 | area = ospf_area_lookup_by_area_id(ospf, area_id); |
1575 | if (area == NULL) | |
1576 | return 0; | |
718e3744 | 1577 | |
d62a17ae | 1578 | area->NSSATranslatorRole = role; |
718e3744 | 1579 | |
d62a17ae | 1580 | return 1; |
718e3744 | 1581 | } |
1582 | ||
075e12f5 | 1583 | #if 0 |
4dadc291 | 1584 | /* XXX: unused? Leave for symmetry? */ |
1585 | static int | |
718e3744 | 1586 | ospf_area_nssa_translator_role_unset (struct ospf *ospf, |
1587 | struct in_addr area_id) | |
1588 | { | |
1589 | struct ospf_area *area; | |
1590 | ||
68980084 | 1591 | area = ospf_area_lookup_by_area_id (ospf, area_id); |
718e3744 | 1592 | if (area == NULL) |
1593 | return 0; | |
1594 | ||
084c7844 | 1595 | area->NSSATranslatorRole = OSPF_NSSA_ROLE_CANDIDATE; |
718e3744 | 1596 | |
68980084 | 1597 | ospf_area_check_free (ospf, area_id); |
718e3744 | 1598 | |
1599 | return 1; | |
1600 | } | |
075e12f5 | 1601 | #endif |
718e3744 | 1602 | |
d62a17ae | 1603 | int ospf_area_export_list_set(struct ospf *ospf, struct ospf_area *area, |
1604 | const char *list_name) | |
718e3744 | 1605 | { |
d62a17ae | 1606 | struct access_list *list; |
1607 | list = access_list_lookup(AFI_IP, list_name); | |
718e3744 | 1608 | |
d62a17ae | 1609 | EXPORT_LIST(area) = list; |
718e3744 | 1610 | |
d62a17ae | 1611 | if (EXPORT_NAME(area)) |
1612 | free(EXPORT_NAME(area)); | |
718e3744 | 1613 | |
d62a17ae | 1614 | EXPORT_NAME(area) = strdup(list_name); |
1615 | ospf_schedule_abr_task(ospf); | |
718e3744 | 1616 | |
d62a17ae | 1617 | return 1; |
718e3744 | 1618 | } |
1619 | ||
d62a17ae | 1620 | int ospf_area_export_list_unset(struct ospf *ospf, struct ospf_area *area) |
718e3744 | 1621 | { |
1622 | ||
d62a17ae | 1623 | EXPORT_LIST(area) = 0; |
718e3744 | 1624 | |
d62a17ae | 1625 | if (EXPORT_NAME(area)) |
1626 | free(EXPORT_NAME(area)); | |
718e3744 | 1627 | |
d62a17ae | 1628 | EXPORT_NAME(area) = NULL; |
718e3744 | 1629 | |
d62a17ae | 1630 | ospf_area_check_free(ospf, area->area_id); |
718e3744 | 1631 | |
d62a17ae | 1632 | ospf_schedule_abr_task(ospf); |
1633 | ||
1634 | return 1; | |
718e3744 | 1635 | } |
1636 | ||
d62a17ae | 1637 | int ospf_area_import_list_set(struct ospf *ospf, struct ospf_area *area, |
1638 | const char *name) | |
718e3744 | 1639 | { |
d62a17ae | 1640 | struct access_list *list; |
1641 | list = access_list_lookup(AFI_IP, name); | |
718e3744 | 1642 | |
d62a17ae | 1643 | IMPORT_LIST(area) = list; |
718e3744 | 1644 | |
d62a17ae | 1645 | if (IMPORT_NAME(area)) |
1646 | free(IMPORT_NAME(area)); | |
718e3744 | 1647 | |
d62a17ae | 1648 | IMPORT_NAME(area) = strdup(name); |
1649 | ospf_schedule_abr_task(ospf); | |
718e3744 | 1650 | |
d62a17ae | 1651 | return 1; |
718e3744 | 1652 | } |
1653 | ||
d62a17ae | 1654 | int ospf_area_import_list_unset(struct ospf *ospf, struct ospf_area *area) |
718e3744 | 1655 | { |
d62a17ae | 1656 | IMPORT_LIST(area) = 0; |
718e3744 | 1657 | |
d62a17ae | 1658 | if (IMPORT_NAME(area)) |
1659 | free(IMPORT_NAME(area)); | |
718e3744 | 1660 | |
d62a17ae | 1661 | IMPORT_NAME(area) = NULL; |
1662 | ospf_area_check_free(ospf, area->area_id); | |
718e3744 | 1663 | |
d62a17ae | 1664 | ospf_schedule_abr_task(ospf); |
718e3744 | 1665 | |
d62a17ae | 1666 | return 1; |
718e3744 | 1667 | } |
1668 | ||
d62a17ae | 1669 | int ospf_timers_refresh_set(struct ospf *ospf, int interval) |
718e3744 | 1670 | { |
d62a17ae | 1671 | int time_left; |
718e3744 | 1672 | |
d62a17ae | 1673 | if (ospf->lsa_refresh_interval == interval) |
1674 | return 1; | |
718e3744 | 1675 | |
d62a17ae | 1676 | time_left = ospf->lsa_refresh_interval |
1677 | - (monotime(NULL) - ospf->lsa_refresher_started); | |
718e3744 | 1678 | |
d62a17ae | 1679 | if (time_left > interval) { |
1680 | OSPF_TIMER_OFF(ospf->t_lsa_refresher); | |
1681 | thread_add_timer(master, ospf_lsa_refresh_walker, ospf, | |
1682 | interval, &ospf->t_lsa_refresher); | |
1683 | } | |
1684 | ospf->lsa_refresh_interval = interval; | |
1685 | ||
1686 | return 1; | |
718e3744 | 1687 | } |
1688 | ||
d62a17ae | 1689 | int ospf_timers_refresh_unset(struct ospf *ospf) |
718e3744 | 1690 | { |
d62a17ae | 1691 | int time_left; |
718e3744 | 1692 | |
d62a17ae | 1693 | time_left = ospf->lsa_refresh_interval |
1694 | - (monotime(NULL) - ospf->lsa_refresher_started); | |
718e3744 | 1695 | |
d62a17ae | 1696 | if (time_left > OSPF_LSA_REFRESH_INTERVAL_DEFAULT) { |
1697 | OSPF_TIMER_OFF(ospf->t_lsa_refresher); | |
1698 | ospf->t_lsa_refresher = NULL; | |
1699 | thread_add_timer(master, ospf_lsa_refresh_walker, ospf, | |
1700 | OSPF_LSA_REFRESH_INTERVAL_DEFAULT, | |
1701 | &ospf->t_lsa_refresher); | |
1702 | } | |
718e3744 | 1703 | |
d62a17ae | 1704 | ospf->lsa_refresh_interval = OSPF_LSA_REFRESH_INTERVAL_DEFAULT; |
718e3744 | 1705 | |
d62a17ae | 1706 | return 1; |
718e3744 | 1707 | } |
1708 | ||
6b0655a2 | 1709 | |
d62a17ae | 1710 | static struct ospf_nbr_nbma *ospf_nbr_nbma_new(void) |
718e3744 | 1711 | { |
d62a17ae | 1712 | struct ospf_nbr_nbma *nbr_nbma; |
718e3744 | 1713 | |
d62a17ae | 1714 | nbr_nbma = XCALLOC(MTYPE_OSPF_NEIGHBOR_STATIC, |
1715 | sizeof(struct ospf_nbr_nbma)); | |
718e3744 | 1716 | |
d62a17ae | 1717 | nbr_nbma->priority = OSPF_NEIGHBOR_PRIORITY_DEFAULT; |
1718 | nbr_nbma->v_poll = OSPF_POLL_INTERVAL_DEFAULT; | |
718e3744 | 1719 | |
d62a17ae | 1720 | return nbr_nbma; |
718e3744 | 1721 | } |
1722 | ||
d62a17ae | 1723 | static void ospf_nbr_nbma_free(struct ospf_nbr_nbma *nbr_nbma) |
718e3744 | 1724 | { |
d62a17ae | 1725 | XFREE(MTYPE_OSPF_NEIGHBOR_STATIC, nbr_nbma); |
718e3744 | 1726 | } |
1727 | ||
d62a17ae | 1728 | static void ospf_nbr_nbma_delete(struct ospf *ospf, |
1729 | struct ospf_nbr_nbma *nbr_nbma) | |
718e3744 | 1730 | { |
d62a17ae | 1731 | struct route_node *rn; |
1732 | struct prefix_ipv4 p; | |
718e3744 | 1733 | |
d62a17ae | 1734 | p.family = AF_INET; |
1735 | p.prefix = nbr_nbma->addr; | |
1736 | p.prefixlen = IPV4_MAX_BITLEN; | |
718e3744 | 1737 | |
d62a17ae | 1738 | rn = route_node_lookup(ospf->nbr_nbma, (struct prefix *)&p); |
1739 | if (rn) { | |
1740 | ospf_nbr_nbma_free(rn->info); | |
1741 | rn->info = NULL; | |
1742 | route_unlock_node(rn); | |
1743 | route_unlock_node(rn); | |
1744 | } | |
718e3744 | 1745 | } |
1746 | ||
d62a17ae | 1747 | static void ospf_nbr_nbma_down(struct ospf_nbr_nbma *nbr_nbma) |
718e3744 | 1748 | { |
d62a17ae | 1749 | OSPF_TIMER_OFF(nbr_nbma->t_poll); |
718e3744 | 1750 | |
d62a17ae | 1751 | if (nbr_nbma->nbr) { |
1752 | nbr_nbma->nbr->nbr_nbma = NULL; | |
1753 | OSPF_NSM_EVENT_EXECUTE(nbr_nbma->nbr, NSM_KillNbr); | |
1754 | } | |
718e3744 | 1755 | |
d62a17ae | 1756 | if (nbr_nbma->oi) |
1757 | listnode_delete(nbr_nbma->oi->nbr_nbma, nbr_nbma); | |
718e3744 | 1758 | } |
1759 | ||
d62a17ae | 1760 | static void ospf_nbr_nbma_add(struct ospf_nbr_nbma *nbr_nbma, |
1761 | struct ospf_interface *oi) | |
718e3744 | 1762 | { |
d62a17ae | 1763 | struct ospf_neighbor *nbr; |
1764 | struct route_node *rn; | |
1765 | struct prefix p; | |
718e3744 | 1766 | |
d62a17ae | 1767 | if (oi->type != OSPF_IFTYPE_NBMA) |
1768 | return; | |
718e3744 | 1769 | |
d62a17ae | 1770 | if (nbr_nbma->nbr != NULL) |
1771 | return; | |
718e3744 | 1772 | |
d62a17ae | 1773 | if (IPV4_ADDR_SAME(&oi->nbr_self->address.u.prefix4, &nbr_nbma->addr)) |
1774 | return; | |
718e3744 | 1775 | |
d62a17ae | 1776 | nbr_nbma->oi = oi; |
1777 | listnode_add(oi->nbr_nbma, nbr_nbma); | |
718e3744 | 1778 | |
d62a17ae | 1779 | /* Get neighbor information from table. */ |
1780 | p.family = AF_INET; | |
1781 | p.prefixlen = IPV4_MAX_BITLEN; | |
1782 | p.u.prefix4 = nbr_nbma->addr; | |
718e3744 | 1783 | |
d62a17ae | 1784 | rn = route_node_get(oi->nbrs, (struct prefix *)&p); |
1785 | if (rn->info) { | |
1786 | nbr = rn->info; | |
1787 | nbr->nbr_nbma = nbr_nbma; | |
1788 | nbr_nbma->nbr = nbr; | |
718e3744 | 1789 | |
d62a17ae | 1790 | route_unlock_node(rn); |
1791 | } else { | |
1792 | nbr = rn->info = ospf_nbr_new(oi); | |
1793 | nbr->state = NSM_Down; | |
1794 | nbr->src = nbr_nbma->addr; | |
1795 | nbr->nbr_nbma = nbr_nbma; | |
1796 | nbr->priority = nbr_nbma->priority; | |
1797 | nbr->address = p; | |
718e3744 | 1798 | |
d62a17ae | 1799 | nbr_nbma->nbr = nbr; |
1800 | ||
1801 | OSPF_NSM_EVENT_EXECUTE(nbr, NSM_Start); | |
1802 | } | |
718e3744 | 1803 | } |
1804 | ||
d62a17ae | 1805 | void ospf_nbr_nbma_if_update(struct ospf *ospf, struct ospf_interface *oi) |
718e3744 | 1806 | { |
d62a17ae | 1807 | struct ospf_nbr_nbma *nbr_nbma; |
1808 | struct route_node *rn; | |
1809 | struct prefix_ipv4 p; | |
718e3744 | 1810 | |
d62a17ae | 1811 | if (oi->type != OSPF_IFTYPE_NBMA) |
1812 | return; | |
718e3744 | 1813 | |
d62a17ae | 1814 | for (rn = route_top(ospf->nbr_nbma); rn; rn = route_next(rn)) |
1815 | if ((nbr_nbma = rn->info)) | |
1816 | if (nbr_nbma->oi == NULL && nbr_nbma->nbr == NULL) { | |
1817 | p.family = AF_INET; | |
1818 | p.prefix = nbr_nbma->addr; | |
1819 | p.prefixlen = IPV4_MAX_BITLEN; | |
718e3744 | 1820 | |
d62a17ae | 1821 | if (prefix_match(oi->address, |
1822 | (struct prefix *)&p)) | |
1823 | ospf_nbr_nbma_add(nbr_nbma, oi); | |
1824 | } | |
718e3744 | 1825 | } |
1826 | ||
d62a17ae | 1827 | struct ospf_nbr_nbma *ospf_nbr_nbma_lookup(struct ospf *ospf, |
1828 | struct in_addr nbr_addr) | |
718e3744 | 1829 | { |
d62a17ae | 1830 | struct route_node *rn; |
1831 | struct prefix_ipv4 p; | |
718e3744 | 1832 | |
d62a17ae | 1833 | p.family = AF_INET; |
1834 | p.prefix = nbr_addr; | |
1835 | p.prefixlen = IPV4_MAX_BITLEN; | |
718e3744 | 1836 | |
d62a17ae | 1837 | rn = route_node_lookup(ospf->nbr_nbma, (struct prefix *)&p); |
1838 | if (rn) { | |
1839 | route_unlock_node(rn); | |
1840 | return rn->info; | |
1841 | } | |
1842 | return NULL; | |
718e3744 | 1843 | } |
1844 | ||
d62a17ae | 1845 | struct ospf_nbr_nbma *ospf_nbr_nbma_lookup_next(struct ospf *ospf, |
1846 | struct in_addr *addr, int first) | |
718e3744 | 1847 | { |
1848 | #if 0 | |
1849 | struct ospf_nbr_nbma *nbr_nbma; | |
52dc7ee6 | 1850 | struct listnode *node; |
718e3744 | 1851 | #endif |
1852 | ||
d62a17ae | 1853 | if (ospf == NULL) |
1854 | return NULL; | |
718e3744 | 1855 | |
1856 | #if 0 | |
1eb8ef25 | 1857 | for (ALL_LIST_ELEMENTS_RO (ospf->nbr_nbma, node, nbr_nbma)) |
718e3744 | 1858 | { |
718e3744 | 1859 | if (first) |
1860 | { | |
1861 | *addr = nbr_nbma->addr; | |
1862 | return nbr_nbma; | |
1863 | } | |
1864 | else if (ntohl (nbr_nbma->addr.s_addr) > ntohl (addr->s_addr)) | |
1865 | { | |
1866 | *addr = nbr_nbma->addr; | |
1867 | return nbr_nbma; | |
1868 | } | |
1869 | } | |
1870 | #endif | |
d62a17ae | 1871 | return NULL; |
718e3744 | 1872 | } |
1873 | ||
d62a17ae | 1874 | int ospf_nbr_nbma_set(struct ospf *ospf, struct in_addr nbr_addr) |
718e3744 | 1875 | { |
d62a17ae | 1876 | struct ospf_nbr_nbma *nbr_nbma; |
1877 | struct ospf_interface *oi; | |
1878 | struct prefix_ipv4 p; | |
1879 | struct route_node *rn; | |
1880 | struct listnode *node; | |
718e3744 | 1881 | |
d62a17ae | 1882 | nbr_nbma = ospf_nbr_nbma_lookup(ospf, nbr_addr); |
1883 | if (nbr_nbma) | |
1884 | return 0; | |
718e3744 | 1885 | |
d62a17ae | 1886 | nbr_nbma = ospf_nbr_nbma_new(); |
1887 | nbr_nbma->addr = nbr_addr; | |
718e3744 | 1888 | |
d62a17ae | 1889 | p.family = AF_INET; |
1890 | p.prefix = nbr_addr; | |
1891 | p.prefixlen = IPV4_MAX_BITLEN; | |
718e3744 | 1892 | |
d62a17ae | 1893 | rn = route_node_get(ospf->nbr_nbma, (struct prefix *)&p); |
1894 | if (rn->info) | |
1895 | route_unlock_node(rn); | |
1896 | rn->info = nbr_nbma; | |
718e3744 | 1897 | |
d62a17ae | 1898 | for (ALL_LIST_ELEMENTS_RO(ospf->oiflist, node, oi)) { |
1899 | if (oi->type == OSPF_IFTYPE_NBMA) | |
1900 | if (prefix_match(oi->address, (struct prefix *)&p)) { | |
1901 | ospf_nbr_nbma_add(nbr_nbma, oi); | |
1902 | break; | |
1903 | } | |
1904 | } | |
718e3744 | 1905 | |
d62a17ae | 1906 | return 1; |
718e3744 | 1907 | } |
1908 | ||
d62a17ae | 1909 | int ospf_nbr_nbma_unset(struct ospf *ospf, struct in_addr nbr_addr) |
718e3744 | 1910 | { |
d62a17ae | 1911 | struct ospf_nbr_nbma *nbr_nbma; |
718e3744 | 1912 | |
d62a17ae | 1913 | nbr_nbma = ospf_nbr_nbma_lookup(ospf, nbr_addr); |
1914 | if (nbr_nbma == NULL) | |
1915 | return 0; | |
718e3744 | 1916 | |
d62a17ae | 1917 | ospf_nbr_nbma_down(nbr_nbma); |
1918 | ospf_nbr_nbma_delete(ospf, nbr_nbma); | |
718e3744 | 1919 | |
d62a17ae | 1920 | return 1; |
718e3744 | 1921 | } |
1922 | ||
d62a17ae | 1923 | int ospf_nbr_nbma_priority_set(struct ospf *ospf, struct in_addr nbr_addr, |
1924 | u_char priority) | |
718e3744 | 1925 | { |
d62a17ae | 1926 | struct ospf_nbr_nbma *nbr_nbma; |
718e3744 | 1927 | |
d62a17ae | 1928 | nbr_nbma = ospf_nbr_nbma_lookup(ospf, nbr_addr); |
1929 | if (nbr_nbma == NULL) | |
1930 | return 0; | |
718e3744 | 1931 | |
d62a17ae | 1932 | if (nbr_nbma->priority != priority) |
1933 | nbr_nbma->priority = priority; | |
718e3744 | 1934 | |
d62a17ae | 1935 | return 1; |
718e3744 | 1936 | } |
1937 | ||
d62a17ae | 1938 | int ospf_nbr_nbma_priority_unset(struct ospf *ospf, struct in_addr nbr_addr) |
718e3744 | 1939 | { |
d62a17ae | 1940 | struct ospf_nbr_nbma *nbr_nbma; |
718e3744 | 1941 | |
d62a17ae | 1942 | nbr_nbma = ospf_nbr_nbma_lookup(ospf, nbr_addr); |
1943 | if (nbr_nbma == NULL) | |
1944 | return 0; | |
718e3744 | 1945 | |
d62a17ae | 1946 | if (nbr_nbma != OSPF_NEIGHBOR_PRIORITY_DEFAULT) |
1947 | nbr_nbma->priority = OSPF_NEIGHBOR_PRIORITY_DEFAULT; | |
718e3744 | 1948 | |
d62a17ae | 1949 | return 1; |
718e3744 | 1950 | } |
1951 | ||
d62a17ae | 1952 | int ospf_nbr_nbma_poll_interval_set(struct ospf *ospf, struct in_addr nbr_addr, |
1953 | unsigned int interval) | |
718e3744 | 1954 | { |
d62a17ae | 1955 | struct ospf_nbr_nbma *nbr_nbma; |
718e3744 | 1956 | |
d62a17ae | 1957 | nbr_nbma = ospf_nbr_nbma_lookup(ospf, nbr_addr); |
1958 | if (nbr_nbma == NULL) | |
1959 | return 0; | |
718e3744 | 1960 | |
d62a17ae | 1961 | if (nbr_nbma->v_poll != interval) { |
1962 | nbr_nbma->v_poll = interval; | |
1963 | if (nbr_nbma->oi && ospf_if_is_up(nbr_nbma->oi)) { | |
1964 | OSPF_TIMER_OFF(nbr_nbma->t_poll); | |
1965 | OSPF_POLL_TIMER_ON(nbr_nbma->t_poll, ospf_poll_timer, | |
1966 | nbr_nbma->v_poll); | |
1967 | } | |
718e3744 | 1968 | } |
718e3744 | 1969 | |
d62a17ae | 1970 | return 1; |
718e3744 | 1971 | } |
1972 | ||
d62a17ae | 1973 | int ospf_nbr_nbma_poll_interval_unset(struct ospf *ospf, struct in_addr addr) |
718e3744 | 1974 | { |
d62a17ae | 1975 | struct ospf_nbr_nbma *nbr_nbma; |
718e3744 | 1976 | |
d62a17ae | 1977 | nbr_nbma = ospf_nbr_nbma_lookup(ospf, addr); |
1978 | if (nbr_nbma == NULL) | |
1979 | return 0; | |
718e3744 | 1980 | |
d62a17ae | 1981 | if (nbr_nbma->v_poll != OSPF_POLL_INTERVAL_DEFAULT) |
1982 | nbr_nbma->v_poll = OSPF_POLL_INTERVAL_DEFAULT; | |
718e3744 | 1983 | |
d62a17ae | 1984 | return 1; |
718e3744 | 1985 | } |
1986 | ||
d62a17ae | 1987 | void ospf_master_init(struct thread_master *master) |
718e3744 | 1988 | { |
d62a17ae | 1989 | memset(&ospf_master, 0, sizeof(struct ospf_master)); |
020709f9 | 1990 | |
d62a17ae | 1991 | om = &ospf_master; |
1992 | om->ospf = list_new(); | |
1993 | om->master = master; | |
020709f9 | 1994 | } |
b5a8894d CS |
1995 | |
1996 | /* Link OSPF instance to VRF. */ | |
1997 | void ospf_vrf_link(struct ospf *ospf, struct vrf *vrf) | |
1998 | { | |
1999 | ospf->vrf_id = vrf->vrf_id; | |
2000 | if (vrf->info != (void *)ospf) | |
2001 | vrf->info = (void *)ospf; | |
2002 | } | |
2003 | ||
2004 | /* Unlink OSPF instance from VRF. */ | |
2005 | void ospf_vrf_unlink(struct ospf *ospf, struct vrf *vrf) | |
2006 | { | |
2007 | if (vrf->info == (void *)ospf) | |
2008 | vrf->info = NULL; | |
2009 | ospf->vrf_id = VRF_UNKNOWN; | |
2010 | } | |
2011 | ||
2012 | /* This is hook function for vrf create called as part of vrf_init */ | |
2013 | static int ospf_vrf_new(struct vrf *vrf) | |
2014 | { | |
2015 | if (IS_DEBUG_OSPF_EVENT) | |
fe3da9e7 | 2016 | zlog_debug("%s: VRF Created: %s(%u)", __PRETTY_FUNCTION__, |
b5a8894d CS |
2017 | vrf->name, vrf->vrf_id); |
2018 | ||
2019 | return 0; | |
2020 | } | |
2021 | ||
2022 | /* This is hook function for vrf delete call as part of vrf_init */ | |
2023 | static int ospf_vrf_delete(struct vrf *vrf) | |
2024 | { | |
2025 | if (IS_DEBUG_OSPF_EVENT) | |
fe3da9e7 | 2026 | zlog_debug("%s: VRF Deletion: %s(%u)", __PRETTY_FUNCTION__, |
b5a8894d CS |
2027 | vrf->name, vrf->vrf_id); |
2028 | ||
2029 | return 0; | |
2030 | } | |
2031 | ||
2032 | /* Enable OSPF VRF instance */ | |
2033 | static int ospf_vrf_enable(struct vrf *vrf) | |
2034 | { | |
2035 | struct ospf *ospf = NULL; | |
2036 | vrf_id_t old_vrf_id = VRF_DEFAULT; | |
2037 | ||
2038 | if (IS_DEBUG_OSPF_EVENT) | |
fe3da9e7 | 2039 | zlog_debug("%s: VRF %s id %u enabled", |
b5a8894d CS |
2040 | __PRETTY_FUNCTION__, vrf->name, vrf->vrf_id); |
2041 | ||
2042 | ospf = ospf_lookup_by_name(vrf->name); | |
2043 | if (ospf) { | |
2044 | old_vrf_id = ospf->vrf_id; | |
2045 | /* We have instance configured, link to VRF and make it "up". */ | |
2046 | ospf_vrf_link(ospf, vrf); | |
2047 | if (IS_DEBUG_OSPF_EVENT) | |
fe3da9e7 | 2048 | zlog_debug("%s: ospf linked to vrf %s vrf_id %u (old id %u)", |
b5a8894d CS |
2049 | __PRETTY_FUNCTION__, vrf->name, ospf->vrf_id, |
2050 | old_vrf_id); | |
2051 | ||
2052 | if (old_vrf_id != ospf->vrf_id) { | |
e7503eab CS |
2053 | if (ospfd_privs.change(ZPRIVS_RAISE)) { |
2054 | zlog_err("ospf_sock_init: could not raise privs, %s", | |
2055 | safe_strerror(errno)); | |
2056 | } | |
2057 | if (ospf_bind_vrfdevice(ospf, ospf->fd) < 0) | |
2058 | return 0; | |
2059 | if (ospfd_privs.change(ZPRIVS_LOWER)) { | |
2060 | zlog_err("ospf_sock_init: could not lower privs, %s", | |
2061 | safe_strerror(errno)); | |
2062 | } | |
2063 | ||
b5a8894d | 2064 | ospf->oi_running = 1; |
6021c6c0 | 2065 | ospf_zebra_vrf_register(ospf); |
b5a8894d CS |
2066 | ospf_router_id_update(ospf); |
2067 | } | |
2068 | } | |
2069 | ||
2070 | return 0; | |
2071 | } | |
2072 | ||
2073 | /* Disable OSPF VRF instance */ | |
2074 | static int ospf_vrf_disable(struct vrf *vrf) | |
2075 | { | |
2076 | struct ospf *ospf = NULL; | |
2077 | vrf_id_t old_vrf_id = VRF_UNKNOWN; | |
2078 | ||
2079 | if (vrf->vrf_id == VRF_DEFAULT) | |
2080 | return 0; | |
2081 | ||
2082 | if (IS_DEBUG_OSPF_EVENT) | |
2083 | zlog_debug("%s: VRF %s id %d disabled.", | |
2084 | __PRETTY_FUNCTION__, vrf->name, vrf->vrf_id); | |
2085 | ||
2086 | ospf = ospf_lookup_by_name(vrf->name); | |
2087 | if (ospf) { | |
2088 | old_vrf_id = ospf->vrf_id; | |
2089 | ||
2090 | /* We have instance configured, unlink | |
2091 | * from VRF and make it "down". | |
2092 | */ | |
2093 | ospf_vrf_unlink(ospf, vrf); | |
2094 | ospf->oi_running = 0; | |
2095 | if (IS_DEBUG_OSPF_EVENT) | |
2096 | zlog_debug("%s: ospf old_vrf_id %d unlinked", | |
2097 | __PRETTY_FUNCTION__, old_vrf_id); | |
2098 | } | |
2099 | ||
2100 | /* Note: This is a callback, the VRF will be deleted by the caller. */ | |
2101 | return 0; | |
2102 | } | |
2103 | ||
2104 | void ospf_vrf_init(void) | |
2105 | { | |
2106 | vrf_init(ospf_vrf_new, ospf_vrf_enable, | |
2107 | ospf_vrf_disable, ospf_vrf_delete); | |
2108 | } | |
2109 | ||
2110 | void ospf_vrf_terminate(void) | |
2111 | { | |
2112 | vrf_terminate(); | |
2113 | } | |
2114 | ||
2115 | const char *ospf_vrf_id_to_name(vrf_id_t vrf_id) | |
2116 | { | |
2117 | struct vrf *vrf = vrf_lookup_by_id(vrf_id); | |
2118 | ||
2119 | return vrf ? vrf->name : "NIL"; | |
2120 | } |