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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) | |
162 | if (IS_LSA_SELF(lsa)) | |
163 | ospf_lsa_flush_schedule(ospf, lsa); | |
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 | ||
186 | LSDB_LOOP(EXTERNAL_LSDB(ospf), rn, lsa) | |
187 | { | |
188 | /* AdvRouter and Router ID is the same. */ | |
189 | if (IPV4_ADDR_SAME(&lsa->data->adv_router, | |
190 | &ospf->router_id)) { | |
191 | SET_FLAG(lsa->flags, | |
192 | OSPF_LSA_SELF_CHECKED); | |
193 | SET_FLAG(lsa->flags, OSPF_LSA_SELF); | |
194 | ospf_lsa_flush_schedule(ospf, lsa); | |
195 | } | |
196 | } | |
197 | } | |
198 | ||
199 | /* Originate each redistributed external route. */ | |
200 | for (type = 0; type < ZEBRA_ROUTE_MAX; type++) | |
201 | thread_add_event(master, | |
202 | ospf_external_lsa_originate_timer, | |
203 | ospf, type, NULL); | |
204 | thread_add_event(master, ospf_default_originate_timer, ospf, 0, | |
205 | NULL); | |
206 | ||
207 | /* update router-lsa's for each area */ | |
208 | ospf_router_lsa_update(ospf); | |
209 | ||
210 | /* update ospf_interface's */ | |
451fda4f | 211 | FOR_ALL_INTERFACES (vrf, ifp) |
d62a17ae | 212 | ospf_if_update(ospf, ifp); |
718e3744 | 213 | } |
718e3744 | 214 | } |
6b0655a2 | 215 | |
718e3744 | 216 | /* For OSPF area sort by area id. */ |
d62a17ae | 217 | static int ospf_area_id_cmp(struct ospf_area *a1, struct ospf_area *a2) |
718e3744 | 218 | { |
d62a17ae | 219 | if (ntohl(a1->area_id.s_addr) > ntohl(a2->area_id.s_addr)) |
220 | return 1; | |
221 | if (ntohl(a1->area_id.s_addr) < ntohl(a2->area_id.s_addr)) | |
222 | return -1; | |
223 | return 0; | |
718e3744 | 224 | } |
225 | ||
226 | /* Allocate new ospf structure. */ | |
b5a8894d | 227 | static struct ospf *ospf_new(u_short instance, const char *name) |
718e3744 | 228 | { |
d62a17ae | 229 | int i; |
b5a8894d | 230 | struct vrf *vrf = NULL; |
718e3744 | 231 | |
d62a17ae | 232 | struct ospf *new = XCALLOC(MTYPE_OSPF_TOP, sizeof(struct ospf)); |
718e3744 | 233 | |
d62a17ae | 234 | new->instance = instance; |
235 | new->router_id.s_addr = htonl(0); | |
236 | new->router_id_static.s_addr = htonl(0); | |
718e3744 | 237 | |
b5a8894d CS |
238 | if (name) { |
239 | new->vrf_id = VRF_UNKNOWN; | |
240 | /* Freed in ospf_finish_final */ | |
241 | new->name = XSTRDUP(MTYPE_OSPF_TOP, name); | |
242 | vrf = vrf_lookup_by_name(new->name); | |
243 | if (IS_DEBUG_OSPF_EVENT) | |
244 | zlog_debug("%s: Create new ospf instance with vrf_name %s vrf_id %d", | |
245 | __PRETTY_FUNCTION__, name, new->vrf_id); | |
246 | if (vrf) | |
247 | ospf_vrf_link(new, vrf); | |
248 | } else { | |
249 | new->vrf_id = VRF_DEFAULT; | |
250 | vrf = vrf_lookup_by_id(VRF_DEFAULT); | |
251 | ospf_vrf_link(new, vrf); | |
252 | } | |
253 | ospf_zebra_vrf_register(new); | |
254 | ||
d62a17ae | 255 | new->abr_type = OSPF_ABR_DEFAULT; |
256 | new->oiflist = list_new(); | |
257 | new->vlinks = list_new(); | |
258 | new->areas = list_new(); | |
259 | new->areas->cmp = (int (*)(void *, void *))ospf_area_id_cmp; | |
260 | new->networks = route_table_init(); | |
261 | new->nbr_nbma = route_table_init(); | |
718e3744 | 262 | |
d62a17ae | 263 | new->lsdb = ospf_lsdb_new(); |
718e3744 | 264 | |
d62a17ae | 265 | new->default_originate = DEFAULT_ORIGINATE_NONE; |
718e3744 | 266 | |
d62a17ae | 267 | new->passive_interface_default = OSPF_IF_ACTIVE; |
4ba4fc85 | 268 | |
d62a17ae | 269 | new->new_external_route = route_table_init(); |
270 | new->old_external_route = route_table_init(); | |
271 | new->external_lsas = route_table_init(); | |
272 | ||
273 | new->stub_router_startup_time = OSPF_STUB_ROUTER_UNCONFIGURED; | |
274 | new->stub_router_shutdown_time = OSPF_STUB_ROUTER_UNCONFIGURED; | |
275 | new->stub_router_admin_set = OSPF_STUB_ROUTER_ADMINISTRATIVE_UNSET; | |
276 | ||
277 | /* Distribute parameter init. */ | |
278 | for (i = 0; i <= ZEBRA_ROUTE_MAX; i++) { | |
279 | new->dtag[i] = 0; | |
280 | } | |
281 | new->default_metric = -1; | |
282 | new->ref_bandwidth = OSPF_DEFAULT_REF_BANDWIDTH; | |
283 | ||
284 | /* LSA timers */ | |
285 | new->min_ls_interval = OSPF_MIN_LS_INTERVAL; | |
286 | new->min_ls_arrival = OSPF_MIN_LS_ARRIVAL; | |
287 | ||
288 | /* SPF timer value init. */ | |
289 | new->spf_delay = OSPF_SPF_DELAY_DEFAULT; | |
290 | new->spf_holdtime = OSPF_SPF_HOLDTIME_DEFAULT; | |
291 | new->spf_max_holdtime = OSPF_SPF_MAX_HOLDTIME_DEFAULT; | |
292 | new->spf_hold_multiplier = 1; | |
293 | ||
294 | /* MaxAge init. */ | |
295 | new->maxage_delay = OSPF_LSA_MAXAGE_REMOVE_DELAY_DEFAULT; | |
296 | new->maxage_lsa = route_table_init(); | |
297 | new->t_maxage_walker = NULL; | |
298 | thread_add_timer(master, ospf_lsa_maxage_walker, new, | |
299 | OSPF_LSA_MAXAGE_CHECK_INTERVAL, &new->t_maxage_walker); | |
300 | ||
301 | /* Distance table init. */ | |
302 | new->distance_table = route_table_init(); | |
303 | ||
304 | new->lsa_refresh_queue.index = 0; | |
305 | new->lsa_refresh_interval = OSPF_LSA_REFRESH_INTERVAL_DEFAULT; | |
306 | new->t_lsa_refresher = NULL; | |
307 | thread_add_timer(master, ospf_lsa_refresh_walker, new, | |
308 | new->lsa_refresh_interval, &new->t_lsa_refresher); | |
309 | new->lsa_refresher_started = monotime(NULL); | |
310 | ||
e7503eab | 311 | if ((ospf_sock_init(new)) < 0) { |
d62a17ae | 312 | zlog_err( |
313 | "ospf_new: fatal error: ospf_sock_init was unable to open " | |
314 | "a socket"); | |
315 | exit(1); | |
316 | } | |
317 | if ((new->ibuf = stream_new(OSPF_MAX_PACKET_SIZE + 1)) == NULL) { | |
318 | zlog_err( | |
319 | "ospf_new: fatal error: stream_new(%u) failed allocating ibuf", | |
320 | OSPF_MAX_PACKET_SIZE + 1); | |
321 | exit(1); | |
322 | } | |
323 | new->t_read = NULL; | |
324 | thread_add_read(master, ospf_read, new, new->fd, &new->t_read); | |
325 | new->oi_write_q = list_new(); | |
326 | new->write_oi_count = OSPF_WRITE_INTERFACE_COUNT_DEFAULT; | |
327 | ||
328 | /* Enable "log-adjacency-changes" */ | |
8efe88ea | 329 | #if DFLT_OSPF_LOG_ADJACENCY_CHANGES |
d62a17ae | 330 | SET_FLAG(new->config, OSPF_LOG_ADJACENCY_CHANGES); |
8efe88ea | 331 | #endif |
3e7c8d04 | 332 | |
d62a17ae | 333 | QOBJ_REG(new, ospf); |
ae19c240 | 334 | |
d62a17ae | 335 | return new; |
718e3744 | 336 | } |
337 | ||
d62a17ae | 338 | struct ospf *ospf_lookup_instance(u_short instance) |
7c8ff89e | 339 | { |
d62a17ae | 340 | struct ospf *ospf; |
341 | struct listnode *node, *nnode; | |
7c8ff89e | 342 | |
d62a17ae | 343 | if (listcount(om->ospf) == 0) |
344 | return NULL; | |
7c8ff89e | 345 | |
d62a17ae | 346 | for (ALL_LIST_ELEMENTS(om->ospf, node, nnode, ospf)) |
347 | if ((ospf->instance == 0 && instance == 0) | |
348 | || (ospf->instance && instance | |
349 | && ospf->instance == instance)) | |
350 | return ospf; | |
7c8ff89e | 351 | |
d62a17ae | 352 | return NULL; |
7c8ff89e DS |
353 | } |
354 | ||
d62a17ae | 355 | static int ospf_is_ready(struct ospf *ospf) |
52c62ab8 | 356 | { |
d62a17ae | 357 | /* OSPF must be on and Router-ID must be configured. */ |
358 | if (!ospf || ospf->router_id.s_addr == 0) | |
359 | return 0; | |
360 | ||
361 | return 1; | |
52c62ab8 JAG |
362 | } |
363 | ||
d62a17ae | 364 | static void ospf_add(struct ospf *ospf) |
020709f9 | 365 | { |
d62a17ae | 366 | listnode_add(om->ospf, ospf); |
020709f9 | 367 | } |
718e3744 | 368 | |
d62a17ae | 369 | static void ospf_delete(struct ospf *ospf) |
020709f9 | 370 | { |
d62a17ae | 371 | listnode_delete(om->ospf, ospf); |
020709f9 | 372 | } |
68980084 | 373 | |
b5a8894d CS |
374 | struct ospf *ospf_lookup_by_inst_name(u_short instance, const char *name) |
375 | { | |
376 | struct ospf *ospf = NULL; | |
377 | struct listnode *node, *nnode; | |
378 | ||
379 | for (ALL_LIST_ELEMENTS(om->ospf, node, nnode, ospf)) { | |
380 | if ((ospf->instance == instance) && | |
381 | ((ospf->name == NULL && name == NULL) || | |
382 | (ospf->name && name && strcmp(ospf->name, name) == 0))) | |
383 | return ospf; | |
384 | } | |
385 | return NULL; | |
386 | } | |
387 | ||
388 | struct ospf *ospf_get(u_short instance, const char *name) | |
020709f9 | 389 | { |
d62a17ae | 390 | struct ospf *ospf; |
020709f9 | 391 | |
b5a8894d CS |
392 | /* vrf name provided call inst and name based api |
393 | * in case of no name pass default ospf instance */ | |
394 | if (name) | |
395 | ospf = ospf_lookup_by_inst_name(instance, name); | |
396 | else | |
397 | ospf = ospf_lookup_by_vrf_id(VRF_DEFAULT); | |
398 | ||
d62a17ae | 399 | if (ospf == NULL) { |
b5a8894d | 400 | ospf = ospf_new(instance, name); |
d62a17ae | 401 | ospf_add(ospf); |
7c8ff89e | 402 | |
d62a17ae | 403 | if (ospf->router_id_static.s_addr == 0) |
404 | ospf_router_id_update(ospf); | |
7c8ff89e | 405 | |
d62a17ae | 406 | ospf_opaque_type11_lsa_init(ospf); |
407 | } | |
7c8ff89e | 408 | |
d62a17ae | 409 | return ospf; |
7c8ff89e DS |
410 | } |
411 | ||
d62a17ae | 412 | struct ospf *ospf_get_instance(u_short instance) |
7c8ff89e | 413 | { |
d62a17ae | 414 | struct ospf *ospf; |
7c8ff89e | 415 | |
d62a17ae | 416 | ospf = ospf_lookup_instance(instance); |
417 | if (ospf == NULL) { | |
b5a8894d | 418 | ospf = ospf_new(instance, NULL /* VRF_DEFAULT*/); |
d62a17ae | 419 | ospf_add(ospf); |
020709f9 | 420 | |
b5a8894d CS |
421 | if (ospf->router_id_static.s_addr == 0) { |
422 | if (vrf_lookup_by_id(ospf->vrf_id)) | |
423 | ospf_router_id_update(ospf); | |
424 | else { | |
425 | if (IS_DEBUG_OSPF_EVENT) | |
426 | zlog_debug("%s: ospf VRF (id %d) is not active yet, skip router id update" | |
427 | , __PRETTY_FUNCTION__, | |
428 | ospf->vrf_id); | |
429 | } | |
d62a17ae | 430 | ospf_router_id_update(ospf); |
b5a8894d | 431 | } |
718e3744 | 432 | |
d62a17ae | 433 | ospf_opaque_type11_lsa_init(ospf); |
434 | } | |
68980084 | 435 | |
d62a17ae | 436 | return ospf; |
718e3744 | 437 | } |
6b0655a2 | 438 | |
b5a8894d CS |
439 | struct ospf *ospf_lookup_by_vrf_id(vrf_id_t vrf_id) |
440 | { | |
441 | struct vrf *vrf = NULL; | |
442 | ||
443 | vrf = vrf_lookup_by_id(vrf_id); | |
444 | if (!vrf) | |
445 | return NULL; | |
446 | return (vrf->info) ? (struct ospf *)vrf->info : NULL; | |
447 | ||
448 | } | |
449 | ||
43b8d1d8 CS |
450 | /* It should only be used when processing incoming info update from zebra. |
451 | * Other situations, it is not sufficient to lookup the ospf instance by | |
452 | * vrf_name only without using the instance number. | |
453 | */ | |
454 | static struct ospf *ospf_lookup_by_name(const char *vrf_name) | |
b5a8894d CS |
455 | { |
456 | struct ospf *ospf = NULL; | |
457 | struct listnode *node, *nnode; | |
458 | ||
459 | for (ALL_LIST_ELEMENTS(om->ospf, node, nnode, ospf)) | |
43b8d1d8 CS |
460 | if ((ospf->name == NULL && vrf_name == NULL) |
461 | || (ospf->name && vrf_name && | |
462 | strcmp(ospf->name, vrf_name) == 0)) | |
b5a8894d CS |
463 | return ospf; |
464 | return NULL; | |
465 | } | |
466 | ||
c9c93d50 | 467 | /* Handle the second half of deferred shutdown. This is called either |
468 | * from the deferred-shutdown timer thread, or directly through | |
469 | * ospf_deferred_shutdown_check. | |
88d6cf37 | 470 | * |
471 | * Function is to cleanup G-R state, if required then call ospf_finish_final | |
472 | * to complete shutdown of this ospf instance. Possibly exit if the | |
473 | * whole process is being shutdown and this was the last OSPF instance. | |
474 | */ | |
d62a17ae | 475 | static void ospf_deferred_shutdown_finish(struct ospf *ospf) |
476 | { | |
477 | ospf->stub_router_shutdown_time = OSPF_STUB_ROUTER_UNCONFIGURED; | |
478 | OSPF_TIMER_OFF(ospf->t_deferred_shutdown); | |
479 | ||
480 | ospf_finish_final(ospf); | |
481 | ||
482 | /* *ospf is now invalid */ | |
88d6cf37 | 483 | |
d62a17ae | 484 | /* ospfd being shut-down? If so, was this the last ospf instance? */ |
485 | if (CHECK_FLAG(om->options, OSPF_MASTER_SHUTDOWN) | |
486 | && (listcount(om->ospf) == 0)) { | |
487 | exit(0); | |
488 | } | |
489 | ||
490 | return; | |
88d6cf37 | 491 | } |
492 | ||
493 | /* Timer thread for G-R */ | |
d62a17ae | 494 | static int ospf_deferred_shutdown_timer(struct thread *t) |
88d6cf37 | 495 | { |
d62a17ae | 496 | struct ospf *ospf = THREAD_ARG(t); |
497 | ||
498 | ospf_deferred_shutdown_finish(ospf); | |
499 | ||
500 | return 0; | |
88d6cf37 | 501 | } |
502 | ||
c9c93d50 | 503 | /* Check whether deferred-shutdown must be scheduled, otherwise call |
88d6cf37 | 504 | * down directly into second-half of instance shutdown. |
505 | */ | |
d62a17ae | 506 | static void ospf_deferred_shutdown_check(struct ospf *ospf) |
507 | { | |
508 | unsigned long timeout; | |
509 | struct listnode *ln; | |
510 | struct ospf_area *area; | |
511 | ||
512 | /* deferred shutdown already running? */ | |
513 | if (ospf->t_deferred_shutdown) | |
514 | return; | |
515 | ||
516 | /* Should we try push out max-metric LSAs? */ | |
517 | if (ospf->stub_router_shutdown_time != OSPF_STUB_ROUTER_UNCONFIGURED) { | |
518 | for (ALL_LIST_ELEMENTS_RO(ospf->areas, ln, area)) { | |
519 | SET_FLAG(area->stub_router_state, | |
520 | OSPF_AREA_ADMIN_STUB_ROUTED); | |
521 | ||
522 | if (!CHECK_FLAG(area->stub_router_state, | |
523 | OSPF_AREA_IS_STUB_ROUTED)) | |
524 | ospf_router_lsa_update_area(area); | |
525 | } | |
526 | timeout = ospf->stub_router_shutdown_time; | |
527 | } else { | |
528 | /* No timer needed */ | |
529 | ospf_deferred_shutdown_finish(ospf); | |
530 | return; | |
531 | } | |
532 | ||
533 | OSPF_TIMER_ON(ospf->t_deferred_shutdown, ospf_deferred_shutdown_timer, | |
534 | timeout); | |
535 | return; | |
88d6cf37 | 536 | } |
6b0655a2 | 537 | |
88d6cf37 | 538 | /* Shut down the entire process */ |
d62a17ae | 539 | void ospf_terminate(void) |
540 | { | |
541 | struct ospf *ospf; | |
542 | struct listnode *node, *nnode; | |
543 | ||
544 | /* shutdown already in progress */ | |
545 | if (CHECK_FLAG(om->options, OSPF_MASTER_SHUTDOWN)) | |
546 | return; | |
547 | ||
548 | SET_FLAG(om->options, OSPF_MASTER_SHUTDOWN); | |
549 | ||
550 | /* exit immediately if OSPF not actually running */ | |
551 | if (listcount(om->ospf) == 0) | |
552 | exit(0); | |
553 | ||
554 | bfd_gbl_exit(); | |
555 | for (ALL_LIST_ELEMENTS(om->ospf, node, nnode, ospf)) | |
556 | ospf_finish(ospf); | |
557 | ||
558 | /* Deliberately go back up, hopefully to thread scheduler, as | |
559 | * One or more ospf_finish()'s may have deferred shutdown to a timer | |
560 | * thread | |
561 | */ | |
562 | zclient_stop(zclient); | |
563 | zclient_free(zclient); | |
8879bd22 RW |
564 | |
565 | frr_fini(); | |
d62a17ae | 566 | } |
567 | ||
568 | void ospf_finish(struct ospf *ospf) | |
569 | { | |
570 | /* let deferred shutdown decide */ | |
571 | ospf_deferred_shutdown_check(ospf); | |
572 | ||
573 | /* if ospf_deferred_shutdown returns, then ospf_finish_final is | |
574 | * deferred to expiry of G-S timer thread. Return back up, hopefully | |
575 | * to thread scheduler. | |
576 | */ | |
577 | return; | |
88d6cf37 | 578 | } |
579 | ||
580 | /* Final cleanup of ospf instance */ | |
d62a17ae | 581 | static void ospf_finish_final(struct ospf *ospf) |
718e3744 | 582 | { |
f4e14fdb | 583 | struct vrf *vrf = vrf_lookup_by_id(ospf->vrf_id); |
d62a17ae | 584 | struct route_node *rn; |
585 | struct ospf_nbr_nbma *nbr_nbma; | |
586 | struct ospf_lsa *lsa; | |
587 | struct interface *ifp; | |
588 | struct ospf_interface *oi; | |
589 | struct ospf_area *area; | |
590 | struct ospf_vl_data *vl_data; | |
591 | struct listnode *node, *nnode; | |
592 | int i; | |
593 | u_short instance = 0; | |
7c8ff89e | 594 | |
d62a17ae | 595 | QOBJ_UNREG(ospf); |
7c8ff89e | 596 | |
d62a17ae | 597 | ospf_opaque_type11_lsa_term(ospf); |
953cde65 | 598 | |
046460a1 | 599 | ospf_flush_self_originated_lsas_now(ospf); |
953cde65 | 600 | |
d62a17ae | 601 | /* Unregister redistribution */ |
602 | for (i = 0; i < ZEBRA_ROUTE_MAX; i++) { | |
603 | struct list *red_list; | |
604 | struct ospf_redist *red; | |
718e3744 | 605 | |
d62a17ae | 606 | red_list = ospf->redist[i]; |
607 | if (!red_list) | |
608 | continue; | |
718e3744 | 609 | |
d62a17ae | 610 | for (ALL_LIST_ELEMENTS(red_list, node, nnode, red)) |
611 | ospf_redistribute_unset(ospf, i, red->instance); | |
612 | } | |
613 | ospf_redistribute_default_unset(ospf); | |
718e3744 | 614 | |
d62a17ae | 615 | for (ALL_LIST_ELEMENTS(ospf->areas, node, nnode, area)) |
616 | ospf_remove_vls_through_area(ospf, area); | |
718e3744 | 617 | |
d62a17ae | 618 | for (ALL_LIST_ELEMENTS(ospf->vlinks, node, nnode, vl_data)) |
619 | ospf_vl_delete(ospf, vl_data); | |
718e3744 | 620 | |
affe9e99 | 621 | list_delete_and_null(&ospf->vlinks); |
718e3744 | 622 | |
d62a17ae | 623 | /* Remove any ospf interface config params */ |
451fda4f | 624 | FOR_ALL_INTERFACES (vrf, ifp) { |
d62a17ae | 625 | struct ospf_if_params *params; |
718e3744 | 626 | |
d62a17ae | 627 | params = IF_DEF_PARAMS(ifp); |
628 | if (OSPF_IF_PARAM_CONFIGURED(params, if_area)) | |
629 | UNSET_IF_PARAM(params, if_area); | |
718e3744 | 630 | } |
718e3744 | 631 | |
d62a17ae | 632 | /* Reset interface. */ |
633 | for (ALL_LIST_ELEMENTS(ospf->oiflist, node, nnode, oi)) | |
634 | ospf_if_free(oi); | |
84519c81 | 635 | list_delete_and_null(&ospf->oiflist); |
718e3744 | 636 | |
b5a8894d CS |
637 | /* De-Register VRF */ |
638 | ospf_zebra_vrf_deregister(ospf); | |
639 | ||
d62a17ae | 640 | /* Clear static neighbors */ |
641 | for (rn = route_top(ospf->nbr_nbma); rn; rn = route_next(rn)) | |
642 | if ((nbr_nbma = rn->info)) { | |
643 | OSPF_POLL_TIMER_OFF(nbr_nbma->t_poll); | |
718e3744 | 644 | |
d62a17ae | 645 | if (nbr_nbma->nbr) { |
646 | nbr_nbma->nbr->nbr_nbma = NULL; | |
647 | nbr_nbma->nbr = NULL; | |
648 | } | |
649 | ||
650 | if (nbr_nbma->oi) { | |
651 | listnode_delete(nbr_nbma->oi->nbr_nbma, | |
652 | nbr_nbma); | |
653 | nbr_nbma->oi = NULL; | |
654 | } | |
655 | ||
656 | XFREE(MTYPE_OSPF_NEIGHBOR_STATIC, nbr_nbma); | |
657 | } | |
658 | ||
659 | route_table_finish(ospf->nbr_nbma); | |
660 | ||
661 | /* Clear networks and Areas. */ | |
662 | for (rn = route_top(ospf->networks); rn; rn = route_next(rn)) { | |
663 | struct ospf_network *network; | |
664 | ||
665 | if ((network = rn->info) != NULL) { | |
666 | ospf_network_free(ospf, network); | |
667 | rn->info = NULL; | |
668 | route_unlock_node(rn); | |
669 | } | |
91e6a0e5 | 670 | } |
7f586094 | 671 | route_table_finish(ospf->networks); |
718e3744 | 672 | |
d62a17ae | 673 | for (ALL_LIST_ELEMENTS(ospf->areas, node, nnode, area)) { |
674 | listnode_delete(ospf->areas, area); | |
675 | ospf_area_free(area); | |
676 | } | |
718e3744 | 677 | |
d62a17ae | 678 | /* Cancel all timers. */ |
679 | OSPF_TIMER_OFF(ospf->t_external_lsa); | |
680 | OSPF_TIMER_OFF(ospf->t_spf_calc); | |
681 | OSPF_TIMER_OFF(ospf->t_ase_calc); | |
682 | OSPF_TIMER_OFF(ospf->t_maxage); | |
683 | OSPF_TIMER_OFF(ospf->t_maxage_walker); | |
684 | OSPF_TIMER_OFF(ospf->t_abr_task); | |
685 | OSPF_TIMER_OFF(ospf->t_asbr_check); | |
686 | OSPF_TIMER_OFF(ospf->t_distribute_update); | |
687 | OSPF_TIMER_OFF(ospf->t_lsa_refresher); | |
688 | OSPF_TIMER_OFF(ospf->t_read); | |
689 | OSPF_TIMER_OFF(ospf->t_write); | |
690 | OSPF_TIMER_OFF(ospf->t_opaque_lsa_self); | |
691 | ||
692 | close(ospf->fd); | |
693 | stream_free(ospf->ibuf); | |
694 | ||
695 | LSDB_LOOP(OPAQUE_AS_LSDB(ospf), rn, lsa) | |
696 | ospf_discard_from_db(ospf, ospf->lsdb, lsa); | |
697 | LSDB_LOOP(EXTERNAL_LSDB(ospf), rn, lsa) | |
698 | ospf_discard_from_db(ospf, ospf->lsdb, lsa); | |
699 | ||
700 | ospf_lsdb_delete_all(ospf->lsdb); | |
701 | ospf_lsdb_free(ospf->lsdb); | |
702 | ||
703 | for (rn = route_top(ospf->maxage_lsa); rn; rn = route_next(rn)) { | |
704 | struct ospf_lsa *lsa; | |
705 | ||
706 | if ((lsa = rn->info) != NULL) { | |
707 | ospf_lsa_unlock(&lsa); | |
708 | rn->info = NULL; | |
709 | } | |
710 | route_unlock_node(rn); | |
711 | } | |
712 | route_table_finish(ospf->maxage_lsa); | |
713 | ||
714 | if (ospf->old_table) | |
715 | ospf_route_table_free(ospf->old_table); | |
716 | if (ospf->new_table) { | |
b5a8894d | 717 | ospf_route_delete(ospf, ospf->new_table); |
d62a17ae | 718 | ospf_route_table_free(ospf->new_table); |
719 | } | |
720 | if (ospf->old_rtrs) | |
721 | ospf_rtrs_free(ospf->old_rtrs); | |
722 | if (ospf->new_rtrs) | |
723 | ospf_rtrs_free(ospf->new_rtrs); | |
724 | if (ospf->new_external_route) { | |
b5a8894d | 725 | ospf_route_delete(ospf, ospf->new_external_route); |
d62a17ae | 726 | ospf_route_table_free(ospf->new_external_route); |
727 | } | |
728 | if (ospf->old_external_route) { | |
b5a8894d | 729 | ospf_route_delete(ospf, ospf->old_external_route); |
d62a17ae | 730 | ospf_route_table_free(ospf->old_external_route); |
731 | } | |
732 | if (ospf->external_lsas) { | |
733 | ospf_ase_external_lsas_finish(ospf->external_lsas); | |
734 | } | |
718e3744 | 735 | |
affe9e99 DS |
736 | list_delete_and_null(&ospf->areas); |
737 | list_delete_and_null(&ospf->oi_write_q); | |
d62a17ae | 738 | |
739 | for (i = ZEBRA_ROUTE_SYSTEM; i <= ZEBRA_ROUTE_MAX; i++) { | |
740 | struct list *ext_list; | |
741 | struct listnode *node; | |
742 | struct ospf_external *ext; | |
743 | ||
de1ac5fd | 744 | ext_list = ospf->external[i]; |
d62a17ae | 745 | if (!ext_list) |
746 | continue; | |
747 | ||
748 | for (ALL_LIST_ELEMENTS_RO(ext_list, node, ext)) { | |
749 | if (ext->external_info) | |
750 | for (rn = route_top(ext->external_info); rn; | |
751 | rn = route_next(rn)) { | |
752 | if (rn->info == NULL) | |
753 | continue; | |
754 | ||
755 | XFREE(MTYPE_OSPF_EXTERNAL_INFO, | |
756 | rn->info); | |
757 | rn->info = NULL; | |
758 | route_unlock_node(rn); | |
759 | } | |
760 | } | |
761 | } | |
718e3744 | 762 | |
d62a17ae | 763 | ospf_distance_reset(ospf); |
764 | route_table_finish(ospf->distance_table); | |
7c8ff89e | 765 | |
d62a17ae | 766 | if (!CHECK_FLAG(om->options, OSPF_MASTER_SHUTDOWN)) |
767 | instance = ospf->instance; | |
718e3744 | 768 | |
d62a17ae | 769 | ospf_delete(ospf); |
7c8ff89e | 770 | |
b5a8894d CS |
771 | if (ospf->name) { |
772 | vrf = vrf_lookup_by_name(ospf->name); | |
773 | if (vrf) | |
774 | ospf_vrf_unlink(ospf, vrf); | |
775 | XFREE(MTYPE_OSPF_TOP, ospf->name); | |
776 | } else { | |
777 | vrf = vrf_lookup_by_id(VRF_DEFAULT); | |
778 | if (vrf) | |
779 | ospf_vrf_unlink(ospf, vrf); | |
780 | } | |
781 | ||
d62a17ae | 782 | XFREE(MTYPE_OSPF_TOP, ospf); |
7c8ff89e | 783 | |
d62a17ae | 784 | if (!CHECK_FLAG(om->options, OSPF_MASTER_SHUTDOWN)) |
785 | ospf_get_instance(instance); | |
718e3744 | 786 | } |
787 | ||
6b0655a2 | 788 | |
718e3744 | 789 | /* allocate new OSPF Area object */ |
d62a17ae | 790 | static struct ospf_area *ospf_area_new(struct ospf *ospf, |
791 | struct in_addr area_id) | |
718e3744 | 792 | { |
d62a17ae | 793 | struct ospf_area *new; |
718e3744 | 794 | |
d62a17ae | 795 | /* Allocate new config_network. */ |
796 | new = XCALLOC(MTYPE_OSPF_AREA, sizeof(struct ospf_area)); | |
718e3744 | 797 | |
d62a17ae | 798 | new->ospf = ospf; |
718e3744 | 799 | |
d62a17ae | 800 | new->area_id = area_id; |
801 | new->area_id_fmt = OSPF_AREA_ID_FMT_DOTTEDQUAD; | |
718e3744 | 802 | |
d62a17ae | 803 | new->external_routing = OSPF_AREA_DEFAULT; |
804 | new->default_cost = 1; | |
805 | new->auth_type = OSPF_AUTH_NULL; | |
718e3744 | 806 | |
d62a17ae | 807 | /* New LSDB init. */ |
808 | new->lsdb = ospf_lsdb_new(); | |
718e3744 | 809 | |
d62a17ae | 810 | /* Self-originated LSAs initialize. */ |
811 | new->router_lsa_self = NULL; | |
718e3744 | 812 | |
d62a17ae | 813 | ospf_opaque_type10_lsa_init(new); |
718e3744 | 814 | |
d62a17ae | 815 | new->oiflist = list_new(); |
816 | new->ranges = route_table_init(); | |
718e3744 | 817 | |
d62a17ae | 818 | if (area_id.s_addr == OSPF_AREA_BACKBONE) |
819 | ospf->backbone = new; | |
820 | ||
821 | return new; | |
718e3744 | 822 | } |
823 | ||
d62a17ae | 824 | static void ospf_area_free(struct ospf_area *area) |
718e3744 | 825 | { |
d62a17ae | 826 | struct route_node *rn; |
827 | struct ospf_lsa *lsa; | |
828 | ||
7f7f77a0 DS |
829 | ospf_opaque_type10_lsa_term(area); |
830 | ||
d62a17ae | 831 | /* Free LSDBs. */ |
832 | LSDB_LOOP(ROUTER_LSDB(area), rn, lsa) | |
833 | ospf_discard_from_db(area->ospf, area->lsdb, lsa); | |
834 | LSDB_LOOP(NETWORK_LSDB(area), rn, lsa) | |
835 | ospf_discard_from_db(area->ospf, area->lsdb, lsa); | |
836 | LSDB_LOOP(SUMMARY_LSDB(area), rn, lsa) | |
837 | ospf_discard_from_db(area->ospf, area->lsdb, lsa); | |
838 | LSDB_LOOP(ASBR_SUMMARY_LSDB(area), rn, lsa) | |
839 | ospf_discard_from_db(area->ospf, area->lsdb, lsa); | |
68980084 | 840 | |
d62a17ae | 841 | LSDB_LOOP(NSSA_LSDB(area), rn, lsa) |
842 | ospf_discard_from_db(area->ospf, area->lsdb, lsa); | |
843 | LSDB_LOOP(OPAQUE_AREA_LSDB(area), rn, lsa) | |
844 | ospf_discard_from_db(area->ospf, area->lsdb, lsa); | |
845 | LSDB_LOOP(OPAQUE_LINK_LSDB(area), rn, lsa) | |
846 | ospf_discard_from_db(area->ospf, area->lsdb, lsa); | |
718e3744 | 847 | |
7f586094 | 848 | ospf_opaque_type10_lsa_term(area); |
d62a17ae | 849 | ospf_lsdb_delete_all(area->lsdb); |
850 | ospf_lsdb_free(area->lsdb); | |
718e3744 | 851 | |
d62a17ae | 852 | ospf_lsa_unlock(&area->router_lsa_self); |
718e3744 | 853 | |
d62a17ae | 854 | route_table_finish(area->ranges); |
affe9e99 | 855 | list_delete_and_null(&area->oiflist); |
718e3744 | 856 | |
d62a17ae | 857 | if (EXPORT_NAME(area)) |
858 | free(EXPORT_NAME(area)); | |
718e3744 | 859 | |
d62a17ae | 860 | if (IMPORT_NAME(area)) |
861 | free(IMPORT_NAME(area)); | |
718e3744 | 862 | |
d62a17ae | 863 | /* Cancel timer. */ |
864 | OSPF_TIMER_OFF(area->t_stub_router); | |
865 | OSPF_TIMER_OFF(area->t_opaque_lsa_self); | |
718e3744 | 866 | |
d62a17ae | 867 | if (OSPF_IS_AREA_BACKBONE(area)) |
868 | area->ospf->backbone = NULL; | |
869 | ||
870 | XFREE(MTYPE_OSPF_AREA, area); | |
718e3744 | 871 | } |
872 | ||
d62a17ae | 873 | void ospf_area_check_free(struct ospf *ospf, struct in_addr area_id) |
718e3744 | 874 | { |
d62a17ae | 875 | struct ospf_area *area; |
718e3744 | 876 | |
d62a17ae | 877 | area = ospf_area_lookup_by_area_id(ospf, area_id); |
878 | if (area && listcount(area->oiflist) == 0 && area->ranges->top == NULL | |
879 | && area->shortcut_configured == OSPF_SHORTCUT_DEFAULT | |
880 | && area->external_routing == OSPF_AREA_DEFAULT | |
881 | && area->no_summary == 0 && area->default_cost == 1 | |
882 | && EXPORT_NAME(area) == NULL && IMPORT_NAME(area) == NULL | |
883 | && area->auth_type == OSPF_AUTH_NULL) { | |
884 | listnode_delete(ospf->areas, area); | |
885 | ospf_area_free(area); | |
886 | } | |
718e3744 | 887 | } |
888 | ||
d62a17ae | 889 | struct ospf_area *ospf_area_get(struct ospf *ospf, struct in_addr area_id) |
718e3744 | 890 | { |
d62a17ae | 891 | struct ospf_area *area; |
892 | ||
893 | area = ospf_area_lookup_by_area_id(ospf, area_id); | |
894 | if (!area) { | |
895 | area = ospf_area_new(ospf, area_id); | |
896 | listnode_add_sort(ospf->areas, area); | |
897 | ospf_check_abr_status(ospf); | |
898 | if (ospf->stub_router_admin_set | |
899 | == OSPF_STUB_ROUTER_ADMINISTRATIVE_SET) { | |
900 | SET_FLAG(area->stub_router_state, | |
901 | OSPF_AREA_ADMIN_STUB_ROUTED); | |
902 | } | |
903 | } | |
718e3744 | 904 | |
d62a17ae | 905 | return area; |
718e3744 | 906 | } |
907 | ||
d62a17ae | 908 | struct ospf_area *ospf_area_lookup_by_area_id(struct ospf *ospf, |
909 | struct in_addr area_id) | |
718e3744 | 910 | { |
d62a17ae | 911 | struct ospf_area *area; |
912 | struct listnode *node; | |
718e3744 | 913 | |
d62a17ae | 914 | for (ALL_LIST_ELEMENTS_RO(ospf->areas, node, area)) |
915 | if (IPV4_ADDR_SAME(&area->area_id, &area_id)) | |
916 | return area; | |
718e3744 | 917 | |
d62a17ae | 918 | return NULL; |
718e3744 | 919 | } |
920 | ||
d62a17ae | 921 | void ospf_area_add_if(struct ospf_area *area, struct ospf_interface *oi) |
718e3744 | 922 | { |
d62a17ae | 923 | listnode_add(area->oiflist, oi); |
718e3744 | 924 | } |
925 | ||
d62a17ae | 926 | void ospf_area_del_if(struct ospf_area *area, struct ospf_interface *oi) |
718e3744 | 927 | { |
d62a17ae | 928 | listnode_delete(area->oiflist, oi); |
718e3744 | 929 | } |
930 | ||
52c62ab8 | 931 | |
d62a17ae | 932 | static void add_ospf_interface(struct connected *co, struct ospf_area *area) |
953cde65 | 933 | { |
d62a17ae | 934 | struct ospf_interface *oi; |
953cde65 | 935 | |
d62a17ae | 936 | oi = ospf_if_new(area->ospf, co->ifp, co->address); |
937 | oi->connected = co; | |
953cde65 | 938 | |
d62a17ae | 939 | oi->area = area; |
953cde65 | 940 | |
d62a17ae | 941 | oi->params = ospf_lookup_if_params(co->ifp, oi->address->u.prefix4); |
942 | oi->output_cost = ospf_if_get_output_cost(oi); | |
953cde65 | 943 | |
d62a17ae | 944 | /* Relate ospf interface to ospf instance. */ |
945 | oi->ospf = area->ospf; | |
953cde65 | 946 | |
d62a17ae | 947 | /* update network type as interface flag */ |
948 | /* If network type is specified previously, | |
949 | skip network type setting. */ | |
950 | oi->type = IF_DEF_PARAMS(co->ifp)->type; | |
953cde65 | 951 | |
d62a17ae | 952 | /* Add pseudo neighbor. */ |
953 | ospf_nbr_self_reset(oi, oi->ospf->router_id); | |
953cde65 | 954 | |
d62a17ae | 955 | ospf_area_add_if(oi->area, oi); |
52c62ab8 | 956 | |
d62a17ae | 957 | /* |
958 | * if router_id is not configured, dont bring up | |
959 | * interfaces. | |
960 | * ospf_router_id_update() will call ospf_if_update | |
961 | * whenever r-id is configured instead. | |
962 | */ | |
963 | if ((area->ospf->router_id.s_addr != 0) && if_is_operative(co->ifp)) | |
964 | ospf_if_up(oi); | |
953cde65 JT |
965 | } |
966 | ||
967 | static void update_redistributed(struct ospf *ospf, int add_to_ospf) | |
968 | { | |
d62a17ae | 969 | struct route_node *rn; |
970 | struct external_info *ei; | |
971 | struct ospf_external *ext; | |
972 | ||
de1ac5fd CS |
973 | if (ospf_is_type_redistributed(ospf, ZEBRA_ROUTE_CONNECT, 0)) { |
974 | ext = ospf_external_lookup(ospf, ZEBRA_ROUTE_CONNECT, 0); | |
975 | if ((ext) && EXTERNAL_INFO(ext)) { | |
d62a17ae | 976 | for (rn = route_top(EXTERNAL_INFO(ext)); rn; |
977 | rn = route_next(rn)) { | |
de1ac5fd CS |
978 | ei = rn->info; |
979 | if (ei == NULL) | |
980 | continue; | |
981 | ||
982 | if (add_to_ospf) { | |
983 | if (ospf_external_info_find_lsa( | |
984 | ospf, &ei->p)) | |
985 | if (!ospf_distribute_check_connected( | |
986 | ospf, ei)) | |
987 | ospf_external_lsa_flush( | |
988 | ospf, | |
989 | ei->type, | |
990 | &ei->p, | |
991 | ei->ifindex /*, ei->nexthop */); | |
992 | } else { | |
993 | if (!ospf_external_info_find_lsa( | |
994 | ospf, &ei->p)) | |
995 | if (ospf_distribute_check_connected( | |
996 | ospf, ei)) | |
997 | ospf_external_lsa_originate( | |
998 | ospf, | |
999 | ei); | |
d62a17ae | 1000 | } |
1001 | } | |
1002 | } | |
de1ac5fd | 1003 | } |
953cde65 JT |
1004 | } |
1005 | ||
718e3744 | 1006 | /* Config network statement related functions. */ |
d62a17ae | 1007 | static struct ospf_network *ospf_network_new(struct in_addr area_id) |
718e3744 | 1008 | { |
d62a17ae | 1009 | struct ospf_network *new; |
1010 | new = XCALLOC(MTYPE_OSPF_NETWORK, sizeof(struct ospf_network)); | |
718e3744 | 1011 | |
d62a17ae | 1012 | new->area_id = area_id; |
1013 | new->area_id_fmt = OSPF_AREA_ID_FMT_DOTTEDQUAD; | |
1014 | ||
1015 | return new; | |
718e3744 | 1016 | } |
1017 | ||
d62a17ae | 1018 | static void ospf_network_free(struct ospf *ospf, struct ospf_network *network) |
718e3744 | 1019 | { |
d62a17ae | 1020 | ospf_area_check_free(ospf, network->area_id); |
1021 | ospf_schedule_abr_task(ospf); | |
1022 | XFREE(MTYPE_OSPF_NETWORK, network); | |
718e3744 | 1023 | } |
1024 | ||
d62a17ae | 1025 | int ospf_network_set(struct ospf *ospf, struct prefix_ipv4 *p, |
1026 | struct in_addr area_id, int df) | |
718e3744 | 1027 | { |
d62a17ae | 1028 | struct ospf_network *network; |
1029 | struct ospf_area *area; | |
1030 | struct route_node *rn; | |
718e3744 | 1031 | |
d62a17ae | 1032 | rn = route_node_get(ospf->networks, (struct prefix *)p); |
1033 | if (rn->info) { | |
2b0a905a | 1034 | network = rn->info; |
d62a17ae | 1035 | route_unlock_node(rn); |
2b0a905a DW |
1036 | |
1037 | if (IPV4_ADDR_SAME(&area_id, &network->area_id)) { | |
1038 | return 1; | |
1039 | } else { | |
1040 | /* There is already same network statement. */ | |
1041 | return 0; | |
1042 | } | |
d62a17ae | 1043 | } |
718e3744 | 1044 | |
d62a17ae | 1045 | rn->info = network = ospf_network_new(area_id); |
1046 | network->area_id_fmt = df; | |
1047 | area = ospf_area_get(ospf, area_id); | |
1048 | ospf_area_display_format_set(ospf, area, df); | |
718e3744 | 1049 | |
d62a17ae | 1050 | /* Run network config now. */ |
1051 | ospf_network_run((struct prefix *)p, area); | |
718e3744 | 1052 | |
d62a17ae | 1053 | /* Update connected redistribute. */ |
1054 | update_redistributed(ospf, 1); /* interfaces possibly added */ | |
718e3744 | 1055 | |
d62a17ae | 1056 | ospf_area_check_free(ospf, area_id); |
718e3744 | 1057 | |
d62a17ae | 1058 | return 1; |
718e3744 | 1059 | } |
1060 | ||
d62a17ae | 1061 | int ospf_network_unset(struct ospf *ospf, struct prefix_ipv4 *p, |
1062 | struct in_addr area_id) | |
718e3744 | 1063 | { |
d62a17ae | 1064 | struct route_node *rn; |
1065 | struct ospf_network *network; | |
1066 | struct listnode *node, *nnode; | |
1067 | struct ospf_interface *oi; | |
718e3744 | 1068 | |
d62a17ae | 1069 | rn = route_node_lookup(ospf->networks, (struct prefix *)p); |
1070 | if (rn == NULL) | |
1071 | return 0; | |
718e3744 | 1072 | |
d62a17ae | 1073 | network = rn->info; |
1074 | route_unlock_node(rn); | |
1075 | if (!IPV4_ADDR_SAME(&area_id, &network->area_id)) | |
1076 | return 0; | |
718e3744 | 1077 | |
d62a17ae | 1078 | ospf_network_free(ospf, rn->info); |
1079 | rn->info = NULL; | |
1080 | route_unlock_node(rn); /* initial reference */ | |
718e3744 | 1081 | |
30c0daa4 | 1082 | /* Find interfaces that are not configured already. */ |
d62a17ae | 1083 | for (ALL_LIST_ELEMENTS(ospf->oiflist, node, nnode, oi)) { |
30c0daa4 JAG |
1084 | |
1085 | if (oi->type == OSPF_IFTYPE_VIRTUALLINK) | |
1086 | continue; | |
1087 | ||
1088 | ospf_network_run_subnet(ospf, oi->connected, NULL, NULL); | |
d62a17ae | 1089 | } |
953cde65 | 1090 | |
d62a17ae | 1091 | /* Update connected redistribute. */ |
1092 | update_redistributed(ospf, 0); /* interfaces possibly removed */ | |
1093 | ospf_area_check_free(ospf, area_id); | |
1094 | ||
1095 | return 1; | |
953cde65 JT |
1096 | } |
1097 | ||
52c62ab8 JAG |
1098 | /* Ensure there's an OSPF instance, as "ip ospf area" enabled OSPF means |
1099 | * there might not be any 'router ospf' config. | |
1100 | * | |
1101 | * Otherwise, doesn't do anything different to ospf_if_update for now | |
1102 | */ | |
b5a8894d | 1103 | void ospf_interface_area_set(struct ospf *ospf, struct interface *ifp) |
953cde65 | 1104 | { |
b5a8894d CS |
1105 | if (!ospf) |
1106 | return; | |
d62a17ae | 1107 | |
1108 | ospf_if_update(ospf, ifp); | |
1109 | /* if_update does a update_redistributed */ | |
1110 | ||
1111 | return; | |
953cde65 JT |
1112 | } |
1113 | ||
b5a8894d | 1114 | void ospf_interface_area_unset(struct ospf *ospf, struct interface *ifp) |
953cde65 | 1115 | { |
d62a17ae | 1116 | struct route_node *rn_oi; |
953cde65 | 1117 | |
d62a17ae | 1118 | if (!ospf) |
1119 | return; /* Ospf not ready yet */ | |
953cde65 | 1120 | |
d62a17ae | 1121 | /* Find interfaces that may need to be removed. */ |
1122 | for (rn_oi = route_top(IF_OIFS(ifp)); rn_oi; | |
1123 | rn_oi = route_next(rn_oi)) { | |
b5a8894d | 1124 | struct ospf_interface *oi = NULL; |
d62a17ae | 1125 | |
1126 | if ((oi = rn_oi->info) == NULL) | |
1127 | continue; | |
1128 | ||
1129 | if (oi->type == OSPF_IFTYPE_VIRTUALLINK) | |
1130 | continue; | |
1131 | ||
1132 | ospf_network_run_subnet(ospf, oi->connected, NULL, NULL); | |
1133 | } | |
953cde65 | 1134 | |
d62a17ae | 1135 | /* Update connected redistribute. */ |
1136 | update_redistributed(ospf, 0); /* interfaces possibly removed */ | |
718e3744 | 1137 | } |
1138 | ||
570f7598 | 1139 | /* Check whether interface matches given network |
1140 | * returns: 1, true. 0, false | |
1141 | */ | |
d62a17ae | 1142 | static int ospf_network_match_iface(const struct connected *co, |
1143 | const struct prefix *net) | |
570f7598 | 1144 | { |
d62a17ae | 1145 | /* new approach: more elegant and conceptually clean */ |
1146 | return prefix_match_network_statement(net, CONNECTED_PREFIX(co)); | |
570f7598 | 1147 | } |
1148 | ||
d62a17ae | 1149 | static void ospf_update_interface_area(struct connected *co, |
1150 | struct ospf_area *area) | |
52c62ab8 | 1151 | { |
d62a17ae | 1152 | struct ospf_interface *oi = ospf_if_table_lookup(co->ifp, co->address); |
1153 | ||
1154 | /* nothing to be done case */ | |
1155 | if (oi && oi->area == area) { | |
1156 | return; | |
1157 | } | |
1158 | ||
1159 | if (oi) | |
1160 | ospf_if_free(oi); | |
1161 | ||
1162 | add_ospf_interface(co, area); | |
52c62ab8 JAG |
1163 | } |
1164 | ||
1165 | /* Run OSPF for the given subnet, taking into account the following | |
1166 | * possible sources of area configuration, in the given order of preference: | |
1167 | * | |
1168 | * - Whether there is interface+address specific area configuration | |
1169 | * - Whether there is a default area for the interface | |
1170 | * - Whether there is an area given as a parameter. | |
1171 | * - If no specific network prefix/area is supplied, whether there's | |
1172 | * a matching network configured. | |
1173 | */ | |
d62a17ae | 1174 | static void ospf_network_run_subnet(struct ospf *ospf, struct connected *co, |
1175 | struct prefix *p, | |
1176 | struct ospf_area *given_area) | |
1177 | { | |
1178 | struct ospf_interface *oi; | |
1179 | struct ospf_if_params *params; | |
1180 | struct ospf_area *area = NULL; | |
1181 | struct route_node *rn; | |
1182 | int configed = 0; | |
1183 | ||
1184 | if (CHECK_FLAG(co->flags, ZEBRA_IFA_SECONDARY)) | |
1185 | return; | |
1186 | ||
1187 | if (co->address->family != AF_INET) | |
1188 | return; | |
1189 | ||
1190 | /* Try determine the appropriate area for this interface + address | |
1191 | * Start by checking interface config | |
1192 | */ | |
1193 | params = ospf_lookup_if_params(co->ifp, co->address->u.prefix4); | |
1194 | if (params && OSPF_IF_PARAM_CONFIGURED(params, if_area)) | |
1195 | area = ospf_area_get(ospf, params->if_area); | |
1196 | else { | |
1197 | params = IF_DEF_PARAMS(co->ifp); | |
1198 | if (OSPF_IF_PARAM_CONFIGURED(params, if_area)) | |
1199 | area = ospf_area_get(ospf, params->if_area); | |
1200 | } | |
52c62ab8 | 1201 | |
d62a17ae | 1202 | /* If we've found an interface and/or addr specific area, then we're |
1203 | * done | |
1204 | */ | |
1205 | if (area) { | |
1206 | ospf_update_interface_area(co, area); | |
1207 | return; | |
1208 | } | |
718e3744 | 1209 | |
d62a17ae | 1210 | /* Otherwise, only remaining possibility is a matching network statement |
1211 | */ | |
1212 | if (p) { | |
1213 | assert(given_area != NULL); | |
1214 | ||
1215 | /* Which either was supplied as a parameter.. (e.g. cause a new | |
1216 | * network/area was just added).. | |
1217 | */ | |
1218 | if (p->family == co->address->family | |
1219 | && ospf_network_match_iface(co, p)) | |
1220 | ospf_update_interface_area(co, given_area); | |
1221 | ||
1222 | return; | |
1223 | } | |
1224 | ||
1225 | /* Else we have to search the existing network/area config to see | |
1226 | * if any match.. | |
1227 | */ | |
1228 | for (rn = route_top(ospf->networks); rn; rn = route_next(rn)) | |
1229 | if (rn->info != NULL && ospf_network_match_iface(co, &rn->p)) { | |
1230 | struct ospf_network *network = | |
1231 | (struct ospf_network *)rn->info; | |
1232 | area = ospf_area_get(ospf, network->area_id); | |
1233 | ospf_update_interface_area(co, area); | |
1234 | configed = 1; | |
1235 | } | |
1236 | ||
1237 | /* If the subnet isn't in any area, deconfigure */ | |
1238 | if (!configed && (oi = ospf_if_table_lookup(co->ifp, co->address))) | |
1239 | ospf_if_free(oi); | |
718e3744 | 1240 | } |
1241 | ||
d62a17ae | 1242 | static void ospf_network_run_interface(struct ospf *ospf, struct interface *ifp, |
1243 | struct prefix *p, | |
1244 | struct ospf_area *given_area) | |
718e3744 | 1245 | { |
d62a17ae | 1246 | struct listnode *cnode; |
1247 | struct connected *co; | |
1248 | ||
1249 | if (memcmp(ifp->name, "VLINK", 5) == 0) | |
1250 | return; | |
718e3744 | 1251 | |
d62a17ae | 1252 | /* Network prefix without area is nonsensical */ |
1253 | if (p) | |
1254 | assert(given_area != NULL); | |
1255 | ||
1256 | /* if interface prefix is match specified prefix, | |
1257 | then create socket and join multicast group. */ | |
1258 | for (ALL_LIST_ELEMENTS_RO(ifp->connected, cnode, co)) | |
1259 | ospf_network_run_subnet(ospf, co, p, given_area); | |
718e3744 | 1260 | } |
1261 | ||
d62a17ae | 1262 | static void ospf_network_run(struct prefix *p, struct ospf_area *area) |
718e3744 | 1263 | { |
f4e14fdb | 1264 | struct vrf *vrf = vrf_lookup_by_id(area->ospf->vrf_id); |
d62a17ae | 1265 | struct interface *ifp; |
d62a17ae | 1266 | |
1267 | /* Schedule Router ID Update. */ | |
1268 | if (area->ospf->router_id.s_addr == 0) | |
1269 | ospf_router_id_update(area->ospf); | |
718e3744 | 1270 | |
d62a17ae | 1271 | /* Get target interface. */ |
451fda4f | 1272 | FOR_ALL_INTERFACES (vrf, ifp) |
d62a17ae | 1273 | ospf_network_run_interface(area->ospf, ifp, p, area); |
718e3744 | 1274 | } |
1275 | ||
d62a17ae | 1276 | void ospf_ls_upd_queue_empty(struct ospf_interface *oi) |
1277 | { | |
1278 | struct route_node *rn; | |
1279 | struct listnode *node, *nnode; | |
1280 | struct list *lst; | |
1281 | struct ospf_lsa *lsa; | |
1282 | ||
1283 | /* empty ls update queue */ | |
1284 | for (rn = route_top(oi->ls_upd_queue); rn; rn = route_next(rn)) | |
1285 | if ((lst = (struct list *)rn->info)) { | |
1286 | for (ALL_LIST_ELEMENTS(lst, node, nnode, lsa)) | |
1287 | ospf_lsa_unlock(&lsa); /* oi->ls_upd_queue */ | |
affe9e99 | 1288 | list_delete_and_null(&lst); |
d62a17ae | 1289 | rn->info = NULL; |
1290 | } | |
1291 | ||
1292 | /* remove update event */ | |
1293 | if (oi->t_ls_upd_event) { | |
1294 | thread_cancel(oi->t_ls_upd_event); | |
1295 | oi->t_ls_upd_event = NULL; | |
1296 | } | |
1297 | } | |
6b0655a2 | 1298 | |
d62a17ae | 1299 | void ospf_if_update(struct ospf *ospf, struct interface *ifp) |
718e3744 | 1300 | { |
43b8d1d8 | 1301 | |
d62a17ae | 1302 | if (!ospf) |
43b8d1d8 | 1303 | return; |
b5a8894d CS |
1304 | |
1305 | if (IS_DEBUG_OSPF_EVENT) | |
1306 | zlog_debug("%s: interface %s ifp->vrf_id %u ospf vrf %s vrf_id %u router_id %s", | |
1307 | __PRETTY_FUNCTION__, ifp->name, ifp->vrf_id, | |
1308 | ospf_vrf_id_to_name(ospf->vrf_id), ospf->vrf_id, | |
1309 | inet_ntoa(ospf->router_id)); | |
d62a17ae | 1310 | |
1311 | /* OSPF must be ready. */ | |
1312 | if (!ospf_is_ready(ospf)) | |
1313 | return; | |
1314 | ||
1315 | ospf_network_run_interface(ospf, ifp, NULL, NULL); | |
1316 | ||
1317 | /* Update connected redistribute. */ | |
1318 | update_redistributed(ospf, 1); | |
1319 | } | |
718e3744 | 1320 | |
d62a17ae | 1321 | void ospf_remove_vls_through_area(struct ospf *ospf, struct ospf_area *area) |
718e3744 | 1322 | { |
d62a17ae | 1323 | struct listnode *node, *nnode; |
1324 | struct ospf_vl_data *vl_data; | |
718e3744 | 1325 | |
d62a17ae | 1326 | for (ALL_LIST_ELEMENTS(ospf->vlinks, node, nnode, vl_data)) |
1327 | if (IPV4_ADDR_SAME(&vl_data->vl_area_id, &area->area_id)) | |
1328 | ospf_vl_delete(ospf, vl_data); | |
1329 | } | |
718e3744 | 1330 | |
718e3744 | 1331 | |
d62a17ae | 1332 | static const struct message ospf_area_type_msg[] = { |
1333 | {OSPF_AREA_DEFAULT, "Default"}, | |
1334 | {OSPF_AREA_STUB, "Stub"}, | |
1335 | {OSPF_AREA_NSSA, "NSSA"}, | |
1336 | {0}}; | |
718e3744 | 1337 | |
d62a17ae | 1338 | static void ospf_area_type_set(struct ospf_area *area, int type) |
1339 | { | |
1340 | struct listnode *node; | |
1341 | struct ospf_interface *oi; | |
1342 | ||
1343 | if (area->external_routing == type) { | |
1344 | if (IS_DEBUG_OSPF_EVENT) | |
1345 | zlog_debug("Area[%s]: Types are the same, ignored.", | |
1346 | inet_ntoa(area->area_id)); | |
1347 | return; | |
1348 | } | |
718e3744 | 1349 | |
d62a17ae | 1350 | area->external_routing = type; |
1351 | ||
1352 | if (IS_DEBUG_OSPF_EVENT) | |
1353 | zlog_debug("Area[%s]: Configured as %s", | |
1354 | inet_ntoa(area->area_id), | |
1355 | lookup_msg(ospf_area_type_msg, type, NULL)); | |
1356 | ||
1357 | switch (area->external_routing) { | |
1358 | case OSPF_AREA_DEFAULT: | |
1359 | for (ALL_LIST_ELEMENTS_RO(area->oiflist, node, oi)) | |
1360 | if (oi->nbr_self != NULL) { | |
1361 | UNSET_FLAG(oi->nbr_self->options, | |
1362 | OSPF_OPTION_NP); | |
1363 | SET_FLAG(oi->nbr_self->options, OSPF_OPTION_E); | |
1364 | } | |
1365 | break; | |
1366 | case OSPF_AREA_STUB: | |
1367 | for (ALL_LIST_ELEMENTS_RO(area->oiflist, node, oi)) | |
1368 | if (oi->nbr_self != NULL) { | |
1369 | if (IS_DEBUG_OSPF_EVENT) | |
1370 | zlog_debug( | |
1371 | "setting options on %s accordingly", | |
1372 | IF_NAME(oi)); | |
1373 | UNSET_FLAG(oi->nbr_self->options, | |
1374 | OSPF_OPTION_NP); | |
1375 | UNSET_FLAG(oi->nbr_self->options, | |
1376 | OSPF_OPTION_E); | |
1377 | if (IS_DEBUG_OSPF_EVENT) | |
1378 | zlog_debug("options set on %s: %x", | |
1379 | IF_NAME(oi), OPTIONS(oi)); | |
1380 | } | |
1381 | break; | |
1382 | case OSPF_AREA_NSSA: | |
1383 | for (ALL_LIST_ELEMENTS_RO(area->oiflist, node, oi)) | |
1384 | if (oi->nbr_self != NULL) { | |
1385 | zlog_debug( | |
1386 | "setting nssa options on %s accordingly", | |
1387 | IF_NAME(oi)); | |
1388 | UNSET_FLAG(oi->nbr_self->options, | |
1389 | OSPF_OPTION_E); | |
1390 | SET_FLAG(oi->nbr_self->options, OSPF_OPTION_NP); | |
1391 | zlog_debug("options set on %s: %x", IF_NAME(oi), | |
1392 | OPTIONS(oi)); | |
1393 | } | |
1394 | break; | |
1395 | default: | |
1396 | break; | |
1397 | } | |
1398 | ||
1399 | ospf_router_lsa_update_area(area); | |
1400 | ospf_schedule_abr_task(area->ospf); | |
718e3744 | 1401 | } |
1402 | ||
d62a17ae | 1403 | int ospf_area_shortcut_set(struct ospf *ospf, struct ospf_area *area, int mode) |
718e3744 | 1404 | { |
d62a17ae | 1405 | if (area->shortcut_configured == mode) |
1406 | return 0; | |
718e3744 | 1407 | |
d62a17ae | 1408 | area->shortcut_configured = mode; |
1409 | ospf_router_lsa_update_area(area); | |
1410 | ospf_schedule_abr_task(ospf); | |
718e3744 | 1411 | |
d62a17ae | 1412 | ospf_area_check_free(ospf, area->area_id); |
718e3744 | 1413 | |
d62a17ae | 1414 | return 1; |
718e3744 | 1415 | } |
1416 | ||
d62a17ae | 1417 | int ospf_area_shortcut_unset(struct ospf *ospf, struct ospf_area *area) |
718e3744 | 1418 | { |
d62a17ae | 1419 | area->shortcut_configured = OSPF_SHORTCUT_DEFAULT; |
1420 | ospf_router_lsa_update_area(area); | |
1421 | ospf_area_check_free(ospf, area->area_id); | |
1422 | ospf_schedule_abr_task(ospf); | |
718e3744 | 1423 | |
d62a17ae | 1424 | return 1; |
718e3744 | 1425 | } |
1426 | ||
d62a17ae | 1427 | static int ospf_area_vlink_count(struct ospf *ospf, struct ospf_area *area) |
718e3744 | 1428 | { |
d62a17ae | 1429 | struct ospf_vl_data *vl; |
1430 | struct listnode *node; | |
1431 | int count = 0; | |
718e3744 | 1432 | |
d62a17ae | 1433 | for (ALL_LIST_ELEMENTS_RO(ospf->vlinks, node, vl)) |
1434 | if (IPV4_ADDR_SAME(&vl->vl_area_id, &area->area_id)) | |
1435 | count++; | |
718e3744 | 1436 | |
d62a17ae | 1437 | return count; |
718e3744 | 1438 | } |
1439 | ||
d62a17ae | 1440 | int ospf_area_display_format_set(struct ospf *ospf, struct ospf_area *area, |
1441 | int df) | |
86573dcb | 1442 | { |
d62a17ae | 1443 | area->area_id_fmt = df; |
86573dcb | 1444 | |
d62a17ae | 1445 | return 1; |
86573dcb QY |
1446 | } |
1447 | ||
d62a17ae | 1448 | int ospf_area_stub_set(struct ospf *ospf, struct in_addr area_id) |
718e3744 | 1449 | { |
d62a17ae | 1450 | struct ospf_area *area; |
718e3744 | 1451 | |
d62a17ae | 1452 | area = ospf_area_get(ospf, area_id); |
1453 | if (ospf_area_vlink_count(ospf, area)) | |
1454 | return 0; | |
718e3744 | 1455 | |
d62a17ae | 1456 | if (area->external_routing != OSPF_AREA_STUB) |
1457 | ospf_area_type_set(area, OSPF_AREA_STUB); | |
718e3744 | 1458 | |
d62a17ae | 1459 | return 1; |
718e3744 | 1460 | } |
1461 | ||
d62a17ae | 1462 | int ospf_area_stub_unset(struct ospf *ospf, struct in_addr area_id) |
718e3744 | 1463 | { |
d62a17ae | 1464 | struct ospf_area *area; |
718e3744 | 1465 | |
d62a17ae | 1466 | area = ospf_area_lookup_by_area_id(ospf, area_id); |
1467 | if (area == NULL) | |
1468 | return 1; | |
718e3744 | 1469 | |
d62a17ae | 1470 | if (area->external_routing == OSPF_AREA_STUB) |
1471 | ospf_area_type_set(area, OSPF_AREA_DEFAULT); | |
718e3744 | 1472 | |
d62a17ae | 1473 | ospf_area_check_free(ospf, area_id); |
718e3744 | 1474 | |
d62a17ae | 1475 | return 1; |
718e3744 | 1476 | } |
1477 | ||
d62a17ae | 1478 | int ospf_area_no_summary_set(struct ospf *ospf, struct in_addr area_id) |
718e3744 | 1479 | { |
d62a17ae | 1480 | struct ospf_area *area; |
718e3744 | 1481 | |
d62a17ae | 1482 | area = ospf_area_get(ospf, area_id); |
1483 | area->no_summary = 1; | |
718e3744 | 1484 | |
d62a17ae | 1485 | return 1; |
718e3744 | 1486 | } |
1487 | ||
d62a17ae | 1488 | int ospf_area_no_summary_unset(struct ospf *ospf, struct in_addr area_id) |
718e3744 | 1489 | { |
d62a17ae | 1490 | struct ospf_area *area; |
718e3744 | 1491 | |
d62a17ae | 1492 | area = ospf_area_lookup_by_area_id(ospf, area_id); |
1493 | if (area == NULL) | |
1494 | return 0; | |
718e3744 | 1495 | |
d62a17ae | 1496 | area->no_summary = 0; |
1497 | ospf_area_check_free(ospf, area_id); | |
718e3744 | 1498 | |
d62a17ae | 1499 | return 1; |
718e3744 | 1500 | } |
1501 | ||
7ef56a73 | 1502 | int ospf_area_nssa_no_summary_set(struct ospf *ospf, struct in_addr area_id) |
718e3744 | 1503 | { |
d62a17ae | 1504 | struct ospf_area *area; |
718e3744 | 1505 | |
d62a17ae | 1506 | area = ospf_area_get(ospf, area_id); |
1507 | if (ospf_area_vlink_count(ospf, area)) | |
1508 | return 0; | |
718e3744 | 1509 | |
d62a17ae | 1510 | if (area->external_routing != OSPF_AREA_NSSA) { |
1511 | ospf_area_type_set(area, OSPF_AREA_NSSA); | |
1512 | ospf->anyNSSA++; | |
7ef56a73 | 1513 | area->NSSATranslatorRole = OSPF_NSSA_ROLE_CANDIDATE; |
d62a17ae | 1514 | } |
718e3744 | 1515 | |
7ef56a73 | 1516 | ospf_area_no_summary_set(ospf, area_id); |
084c7844 | 1517 | |
d62a17ae | 1518 | return 1; |
718e3744 | 1519 | } |
1520 | ||
7ef56a73 CS |
1521 | int ospf_area_nssa_set(struct ospf *ospf, struct in_addr area_id) |
1522 | { | |
1523 | struct ospf_area *area; | |
1524 | ||
1525 | area = ospf_area_get(ospf, area_id); | |
1526 | if (ospf_area_vlink_count(ospf, area)) | |
1527 | return 0; | |
1528 | ||
1529 | if (area->external_routing != OSPF_AREA_NSSA) { | |
1530 | ospf_area_type_set(area, OSPF_AREA_NSSA); | |
1531 | ospf->anyNSSA++; | |
1532 | ||
1533 | /* set NSSA area defaults */ | |
1534 | area->no_summary = 0; | |
1535 | area->NSSATranslatorRole = OSPF_NSSA_ROLE_CANDIDATE; | |
1536 | area->NSSATranslatorState = OSPF_NSSA_TRANSLATE_DISABLED; | |
1537 | area->NSSATranslatorStabilityInterval = | |
1538 | OSPF_NSSA_TRANS_STABLE_DEFAULT; | |
1539 | } | |
1540 | return 1; | |
1541 | } | |
1542 | ||
1543 | int ospf_area_nssa_unset(struct ospf *ospf, struct in_addr area_id, int argc) | |
718e3744 | 1544 | { |
d62a17ae | 1545 | struct ospf_area *area; |
718e3744 | 1546 | |
d62a17ae | 1547 | area = ospf_area_lookup_by_area_id(ospf, area_id); |
1548 | if (area == NULL) | |
1549 | return 0; | |
718e3744 | 1550 | |
7ef56a73 CS |
1551 | /* argc < 5 -> 'no area x nssa' */ |
1552 | if (argc < 5 && area->external_routing == OSPF_AREA_NSSA) { | |
d62a17ae | 1553 | ospf->anyNSSA--; |
7ef56a73 CS |
1554 | /* set NSSA area defaults */ |
1555 | area->no_summary = 0; | |
1556 | area->NSSATranslatorRole = OSPF_NSSA_ROLE_CANDIDATE; | |
1557 | area->NSSATranslatorState = OSPF_NSSA_TRANSLATE_DISABLED; | |
1558 | area->NSSATranslatorStabilityInterval = | |
1559 | OSPF_NSSA_TRANS_STABLE_DEFAULT; | |
d62a17ae | 1560 | ospf_area_type_set(area, OSPF_AREA_DEFAULT); |
7ef56a73 CS |
1561 | } else { |
1562 | area->NSSATranslatorRole = OSPF_NSSA_ROLE_CANDIDATE; | |
d62a17ae | 1563 | } |
718e3744 | 1564 | |
d62a17ae | 1565 | ospf_area_check_free(ospf, area_id); |
718e3744 | 1566 | |
d62a17ae | 1567 | return 1; |
718e3744 | 1568 | } |
1569 | ||
d62a17ae | 1570 | int ospf_area_nssa_translator_role_set(struct ospf *ospf, |
1571 | struct in_addr area_id, int role) | |
718e3744 | 1572 | { |
d62a17ae | 1573 | struct ospf_area *area; |
718e3744 | 1574 | |
d62a17ae | 1575 | area = ospf_area_lookup_by_area_id(ospf, area_id); |
1576 | if (area == NULL) | |
1577 | return 0; | |
718e3744 | 1578 | |
d62a17ae | 1579 | area->NSSATranslatorRole = role; |
718e3744 | 1580 | |
d62a17ae | 1581 | return 1; |
718e3744 | 1582 | } |
1583 | ||
075e12f5 | 1584 | #if 0 |
4dadc291 | 1585 | /* XXX: unused? Leave for symmetry? */ |
1586 | static int | |
718e3744 | 1587 | ospf_area_nssa_translator_role_unset (struct ospf *ospf, |
1588 | struct in_addr area_id) | |
1589 | { | |
1590 | struct ospf_area *area; | |
1591 | ||
68980084 | 1592 | area = ospf_area_lookup_by_area_id (ospf, area_id); |
718e3744 | 1593 | if (area == NULL) |
1594 | return 0; | |
1595 | ||
084c7844 | 1596 | area->NSSATranslatorRole = OSPF_NSSA_ROLE_CANDIDATE; |
718e3744 | 1597 | |
68980084 | 1598 | ospf_area_check_free (ospf, area_id); |
718e3744 | 1599 | |
1600 | return 1; | |
1601 | } | |
075e12f5 | 1602 | #endif |
718e3744 | 1603 | |
d62a17ae | 1604 | int ospf_area_export_list_set(struct ospf *ospf, struct ospf_area *area, |
1605 | const char *list_name) | |
718e3744 | 1606 | { |
d62a17ae | 1607 | struct access_list *list; |
1608 | list = access_list_lookup(AFI_IP, list_name); | |
718e3744 | 1609 | |
d62a17ae | 1610 | EXPORT_LIST(area) = list; |
718e3744 | 1611 | |
d62a17ae | 1612 | if (EXPORT_NAME(area)) |
1613 | free(EXPORT_NAME(area)); | |
718e3744 | 1614 | |
d62a17ae | 1615 | EXPORT_NAME(area) = strdup(list_name); |
1616 | ospf_schedule_abr_task(ospf); | |
718e3744 | 1617 | |
d62a17ae | 1618 | return 1; |
718e3744 | 1619 | } |
1620 | ||
d62a17ae | 1621 | int ospf_area_export_list_unset(struct ospf *ospf, struct ospf_area *area) |
718e3744 | 1622 | { |
1623 | ||
d62a17ae | 1624 | EXPORT_LIST(area) = 0; |
718e3744 | 1625 | |
d62a17ae | 1626 | if (EXPORT_NAME(area)) |
1627 | free(EXPORT_NAME(area)); | |
718e3744 | 1628 | |
d62a17ae | 1629 | EXPORT_NAME(area) = NULL; |
718e3744 | 1630 | |
d62a17ae | 1631 | ospf_area_check_free(ospf, area->area_id); |
718e3744 | 1632 | |
d62a17ae | 1633 | ospf_schedule_abr_task(ospf); |
1634 | ||
1635 | return 1; | |
718e3744 | 1636 | } |
1637 | ||
d62a17ae | 1638 | int ospf_area_import_list_set(struct ospf *ospf, struct ospf_area *area, |
1639 | const char *name) | |
718e3744 | 1640 | { |
d62a17ae | 1641 | struct access_list *list; |
1642 | list = access_list_lookup(AFI_IP, name); | |
718e3744 | 1643 | |
d62a17ae | 1644 | IMPORT_LIST(area) = list; |
718e3744 | 1645 | |
d62a17ae | 1646 | if (IMPORT_NAME(area)) |
1647 | free(IMPORT_NAME(area)); | |
718e3744 | 1648 | |
d62a17ae | 1649 | IMPORT_NAME(area) = strdup(name); |
1650 | ospf_schedule_abr_task(ospf); | |
718e3744 | 1651 | |
d62a17ae | 1652 | return 1; |
718e3744 | 1653 | } |
1654 | ||
d62a17ae | 1655 | int ospf_area_import_list_unset(struct ospf *ospf, struct ospf_area *area) |
718e3744 | 1656 | { |
d62a17ae | 1657 | IMPORT_LIST(area) = 0; |
718e3744 | 1658 | |
d62a17ae | 1659 | if (IMPORT_NAME(area)) |
1660 | free(IMPORT_NAME(area)); | |
718e3744 | 1661 | |
d62a17ae | 1662 | IMPORT_NAME(area) = NULL; |
1663 | ospf_area_check_free(ospf, area->area_id); | |
718e3744 | 1664 | |
d62a17ae | 1665 | ospf_schedule_abr_task(ospf); |
718e3744 | 1666 | |
d62a17ae | 1667 | return 1; |
718e3744 | 1668 | } |
1669 | ||
d62a17ae | 1670 | int ospf_timers_refresh_set(struct ospf *ospf, int interval) |
718e3744 | 1671 | { |
d62a17ae | 1672 | int time_left; |
718e3744 | 1673 | |
d62a17ae | 1674 | if (ospf->lsa_refresh_interval == interval) |
1675 | return 1; | |
718e3744 | 1676 | |
d62a17ae | 1677 | time_left = ospf->lsa_refresh_interval |
1678 | - (monotime(NULL) - ospf->lsa_refresher_started); | |
718e3744 | 1679 | |
d62a17ae | 1680 | if (time_left > interval) { |
1681 | OSPF_TIMER_OFF(ospf->t_lsa_refresher); | |
1682 | thread_add_timer(master, ospf_lsa_refresh_walker, ospf, | |
1683 | interval, &ospf->t_lsa_refresher); | |
1684 | } | |
1685 | ospf->lsa_refresh_interval = interval; | |
1686 | ||
1687 | return 1; | |
718e3744 | 1688 | } |
1689 | ||
d62a17ae | 1690 | int ospf_timers_refresh_unset(struct ospf *ospf) |
718e3744 | 1691 | { |
d62a17ae | 1692 | int time_left; |
718e3744 | 1693 | |
d62a17ae | 1694 | time_left = ospf->lsa_refresh_interval |
1695 | - (monotime(NULL) - ospf->lsa_refresher_started); | |
718e3744 | 1696 | |
d62a17ae | 1697 | if (time_left > OSPF_LSA_REFRESH_INTERVAL_DEFAULT) { |
1698 | OSPF_TIMER_OFF(ospf->t_lsa_refresher); | |
1699 | ospf->t_lsa_refresher = NULL; | |
1700 | thread_add_timer(master, ospf_lsa_refresh_walker, ospf, | |
1701 | OSPF_LSA_REFRESH_INTERVAL_DEFAULT, | |
1702 | &ospf->t_lsa_refresher); | |
1703 | } | |
718e3744 | 1704 | |
d62a17ae | 1705 | ospf->lsa_refresh_interval = OSPF_LSA_REFRESH_INTERVAL_DEFAULT; |
718e3744 | 1706 | |
d62a17ae | 1707 | return 1; |
718e3744 | 1708 | } |
1709 | ||
6b0655a2 | 1710 | |
d62a17ae | 1711 | static struct ospf_nbr_nbma *ospf_nbr_nbma_new(void) |
718e3744 | 1712 | { |
d62a17ae | 1713 | struct ospf_nbr_nbma *nbr_nbma; |
718e3744 | 1714 | |
d62a17ae | 1715 | nbr_nbma = XCALLOC(MTYPE_OSPF_NEIGHBOR_STATIC, |
1716 | sizeof(struct ospf_nbr_nbma)); | |
718e3744 | 1717 | |
d62a17ae | 1718 | nbr_nbma->priority = OSPF_NEIGHBOR_PRIORITY_DEFAULT; |
1719 | nbr_nbma->v_poll = OSPF_POLL_INTERVAL_DEFAULT; | |
718e3744 | 1720 | |
d62a17ae | 1721 | return nbr_nbma; |
718e3744 | 1722 | } |
1723 | ||
d62a17ae | 1724 | static void ospf_nbr_nbma_free(struct ospf_nbr_nbma *nbr_nbma) |
718e3744 | 1725 | { |
d62a17ae | 1726 | XFREE(MTYPE_OSPF_NEIGHBOR_STATIC, nbr_nbma); |
718e3744 | 1727 | } |
1728 | ||
d62a17ae | 1729 | static void ospf_nbr_nbma_delete(struct ospf *ospf, |
1730 | struct ospf_nbr_nbma *nbr_nbma) | |
718e3744 | 1731 | { |
d62a17ae | 1732 | struct route_node *rn; |
1733 | struct prefix_ipv4 p; | |
718e3744 | 1734 | |
d62a17ae | 1735 | p.family = AF_INET; |
1736 | p.prefix = nbr_nbma->addr; | |
1737 | p.prefixlen = IPV4_MAX_BITLEN; | |
718e3744 | 1738 | |
d62a17ae | 1739 | rn = route_node_lookup(ospf->nbr_nbma, (struct prefix *)&p); |
1740 | if (rn) { | |
1741 | ospf_nbr_nbma_free(rn->info); | |
1742 | rn->info = NULL; | |
1743 | route_unlock_node(rn); | |
1744 | route_unlock_node(rn); | |
1745 | } | |
718e3744 | 1746 | } |
1747 | ||
d62a17ae | 1748 | static void ospf_nbr_nbma_down(struct ospf_nbr_nbma *nbr_nbma) |
718e3744 | 1749 | { |
d62a17ae | 1750 | OSPF_TIMER_OFF(nbr_nbma->t_poll); |
718e3744 | 1751 | |
d62a17ae | 1752 | if (nbr_nbma->nbr) { |
1753 | nbr_nbma->nbr->nbr_nbma = NULL; | |
1754 | OSPF_NSM_EVENT_EXECUTE(nbr_nbma->nbr, NSM_KillNbr); | |
1755 | } | |
718e3744 | 1756 | |
d62a17ae | 1757 | if (nbr_nbma->oi) |
1758 | listnode_delete(nbr_nbma->oi->nbr_nbma, nbr_nbma); | |
718e3744 | 1759 | } |
1760 | ||
d62a17ae | 1761 | static void ospf_nbr_nbma_add(struct ospf_nbr_nbma *nbr_nbma, |
1762 | struct ospf_interface *oi) | |
718e3744 | 1763 | { |
d62a17ae | 1764 | struct ospf_neighbor *nbr; |
1765 | struct route_node *rn; | |
1766 | struct prefix p; | |
718e3744 | 1767 | |
d62a17ae | 1768 | if (oi->type != OSPF_IFTYPE_NBMA) |
1769 | return; | |
718e3744 | 1770 | |
d62a17ae | 1771 | if (nbr_nbma->nbr != NULL) |
1772 | return; | |
718e3744 | 1773 | |
d62a17ae | 1774 | if (IPV4_ADDR_SAME(&oi->nbr_self->address.u.prefix4, &nbr_nbma->addr)) |
1775 | return; | |
718e3744 | 1776 | |
d62a17ae | 1777 | nbr_nbma->oi = oi; |
1778 | listnode_add(oi->nbr_nbma, nbr_nbma); | |
718e3744 | 1779 | |
d62a17ae | 1780 | /* Get neighbor information from table. */ |
1781 | p.family = AF_INET; | |
1782 | p.prefixlen = IPV4_MAX_BITLEN; | |
1783 | p.u.prefix4 = nbr_nbma->addr; | |
718e3744 | 1784 | |
d62a17ae | 1785 | rn = route_node_get(oi->nbrs, (struct prefix *)&p); |
1786 | if (rn->info) { | |
1787 | nbr = rn->info; | |
1788 | nbr->nbr_nbma = nbr_nbma; | |
1789 | nbr_nbma->nbr = nbr; | |
718e3744 | 1790 | |
d62a17ae | 1791 | route_unlock_node(rn); |
1792 | } else { | |
1793 | nbr = rn->info = ospf_nbr_new(oi); | |
1794 | nbr->state = NSM_Down; | |
1795 | nbr->src = nbr_nbma->addr; | |
1796 | nbr->nbr_nbma = nbr_nbma; | |
1797 | nbr->priority = nbr_nbma->priority; | |
1798 | nbr->address = p; | |
718e3744 | 1799 | |
d62a17ae | 1800 | nbr_nbma->nbr = nbr; |
1801 | ||
1802 | OSPF_NSM_EVENT_EXECUTE(nbr, NSM_Start); | |
1803 | } | |
718e3744 | 1804 | } |
1805 | ||
d62a17ae | 1806 | void ospf_nbr_nbma_if_update(struct ospf *ospf, struct ospf_interface *oi) |
718e3744 | 1807 | { |
d62a17ae | 1808 | struct ospf_nbr_nbma *nbr_nbma; |
1809 | struct route_node *rn; | |
1810 | struct prefix_ipv4 p; | |
718e3744 | 1811 | |
d62a17ae | 1812 | if (oi->type != OSPF_IFTYPE_NBMA) |
1813 | return; | |
718e3744 | 1814 | |
d62a17ae | 1815 | for (rn = route_top(ospf->nbr_nbma); rn; rn = route_next(rn)) |
1816 | if ((nbr_nbma = rn->info)) | |
1817 | if (nbr_nbma->oi == NULL && nbr_nbma->nbr == NULL) { | |
1818 | p.family = AF_INET; | |
1819 | p.prefix = nbr_nbma->addr; | |
1820 | p.prefixlen = IPV4_MAX_BITLEN; | |
718e3744 | 1821 | |
d62a17ae | 1822 | if (prefix_match(oi->address, |
1823 | (struct prefix *)&p)) | |
1824 | ospf_nbr_nbma_add(nbr_nbma, oi); | |
1825 | } | |
718e3744 | 1826 | } |
1827 | ||
d62a17ae | 1828 | struct ospf_nbr_nbma *ospf_nbr_nbma_lookup(struct ospf *ospf, |
1829 | struct in_addr nbr_addr) | |
718e3744 | 1830 | { |
d62a17ae | 1831 | struct route_node *rn; |
1832 | struct prefix_ipv4 p; | |
718e3744 | 1833 | |
d62a17ae | 1834 | p.family = AF_INET; |
1835 | p.prefix = nbr_addr; | |
1836 | p.prefixlen = IPV4_MAX_BITLEN; | |
718e3744 | 1837 | |
d62a17ae | 1838 | rn = route_node_lookup(ospf->nbr_nbma, (struct prefix *)&p); |
1839 | if (rn) { | |
1840 | route_unlock_node(rn); | |
1841 | return rn->info; | |
1842 | } | |
1843 | return NULL; | |
718e3744 | 1844 | } |
1845 | ||
d62a17ae | 1846 | struct ospf_nbr_nbma *ospf_nbr_nbma_lookup_next(struct ospf *ospf, |
1847 | struct in_addr *addr, int first) | |
718e3744 | 1848 | { |
1849 | #if 0 | |
1850 | struct ospf_nbr_nbma *nbr_nbma; | |
52dc7ee6 | 1851 | struct listnode *node; |
718e3744 | 1852 | #endif |
1853 | ||
d62a17ae | 1854 | if (ospf == NULL) |
1855 | return NULL; | |
718e3744 | 1856 | |
1857 | #if 0 | |
1eb8ef25 | 1858 | for (ALL_LIST_ELEMENTS_RO (ospf->nbr_nbma, node, nbr_nbma)) |
718e3744 | 1859 | { |
718e3744 | 1860 | if (first) |
1861 | { | |
1862 | *addr = nbr_nbma->addr; | |
1863 | return nbr_nbma; | |
1864 | } | |
1865 | else if (ntohl (nbr_nbma->addr.s_addr) > ntohl (addr->s_addr)) | |
1866 | { | |
1867 | *addr = nbr_nbma->addr; | |
1868 | return nbr_nbma; | |
1869 | } | |
1870 | } | |
1871 | #endif | |
d62a17ae | 1872 | return NULL; |
718e3744 | 1873 | } |
1874 | ||
d62a17ae | 1875 | int ospf_nbr_nbma_set(struct ospf *ospf, struct in_addr nbr_addr) |
718e3744 | 1876 | { |
d62a17ae | 1877 | struct ospf_nbr_nbma *nbr_nbma; |
1878 | struct ospf_interface *oi; | |
1879 | struct prefix_ipv4 p; | |
1880 | struct route_node *rn; | |
1881 | struct listnode *node; | |
718e3744 | 1882 | |
d62a17ae | 1883 | nbr_nbma = ospf_nbr_nbma_lookup(ospf, nbr_addr); |
1884 | if (nbr_nbma) | |
1885 | return 0; | |
718e3744 | 1886 | |
d62a17ae | 1887 | nbr_nbma = ospf_nbr_nbma_new(); |
1888 | nbr_nbma->addr = nbr_addr; | |
718e3744 | 1889 | |
d62a17ae | 1890 | p.family = AF_INET; |
1891 | p.prefix = nbr_addr; | |
1892 | p.prefixlen = IPV4_MAX_BITLEN; | |
718e3744 | 1893 | |
d62a17ae | 1894 | rn = route_node_get(ospf->nbr_nbma, (struct prefix *)&p); |
1895 | if (rn->info) | |
1896 | route_unlock_node(rn); | |
1897 | rn->info = nbr_nbma; | |
718e3744 | 1898 | |
d62a17ae | 1899 | for (ALL_LIST_ELEMENTS_RO(ospf->oiflist, node, oi)) { |
1900 | if (oi->type == OSPF_IFTYPE_NBMA) | |
1901 | if (prefix_match(oi->address, (struct prefix *)&p)) { | |
1902 | ospf_nbr_nbma_add(nbr_nbma, oi); | |
1903 | break; | |
1904 | } | |
1905 | } | |
718e3744 | 1906 | |
d62a17ae | 1907 | return 1; |
718e3744 | 1908 | } |
1909 | ||
d62a17ae | 1910 | int ospf_nbr_nbma_unset(struct ospf *ospf, struct in_addr nbr_addr) |
718e3744 | 1911 | { |
d62a17ae | 1912 | struct ospf_nbr_nbma *nbr_nbma; |
718e3744 | 1913 | |
d62a17ae | 1914 | nbr_nbma = ospf_nbr_nbma_lookup(ospf, nbr_addr); |
1915 | if (nbr_nbma == NULL) | |
1916 | return 0; | |
718e3744 | 1917 | |
d62a17ae | 1918 | ospf_nbr_nbma_down(nbr_nbma); |
1919 | ospf_nbr_nbma_delete(ospf, nbr_nbma); | |
718e3744 | 1920 | |
d62a17ae | 1921 | return 1; |
718e3744 | 1922 | } |
1923 | ||
d62a17ae | 1924 | int ospf_nbr_nbma_priority_set(struct ospf *ospf, struct in_addr nbr_addr, |
1925 | u_char priority) | |
718e3744 | 1926 | { |
d62a17ae | 1927 | struct ospf_nbr_nbma *nbr_nbma; |
718e3744 | 1928 | |
d62a17ae | 1929 | nbr_nbma = ospf_nbr_nbma_lookup(ospf, nbr_addr); |
1930 | if (nbr_nbma == NULL) | |
1931 | return 0; | |
718e3744 | 1932 | |
d62a17ae | 1933 | if (nbr_nbma->priority != priority) |
1934 | nbr_nbma->priority = priority; | |
718e3744 | 1935 | |
d62a17ae | 1936 | return 1; |
718e3744 | 1937 | } |
1938 | ||
d62a17ae | 1939 | int ospf_nbr_nbma_priority_unset(struct ospf *ospf, struct in_addr nbr_addr) |
718e3744 | 1940 | { |
d62a17ae | 1941 | struct ospf_nbr_nbma *nbr_nbma; |
718e3744 | 1942 | |
d62a17ae | 1943 | nbr_nbma = ospf_nbr_nbma_lookup(ospf, nbr_addr); |
1944 | if (nbr_nbma == NULL) | |
1945 | return 0; | |
718e3744 | 1946 | |
d62a17ae | 1947 | if (nbr_nbma != OSPF_NEIGHBOR_PRIORITY_DEFAULT) |
1948 | nbr_nbma->priority = OSPF_NEIGHBOR_PRIORITY_DEFAULT; | |
718e3744 | 1949 | |
d62a17ae | 1950 | return 1; |
718e3744 | 1951 | } |
1952 | ||
d62a17ae | 1953 | int ospf_nbr_nbma_poll_interval_set(struct ospf *ospf, struct in_addr nbr_addr, |
1954 | unsigned int interval) | |
718e3744 | 1955 | { |
d62a17ae | 1956 | struct ospf_nbr_nbma *nbr_nbma; |
718e3744 | 1957 | |
d62a17ae | 1958 | nbr_nbma = ospf_nbr_nbma_lookup(ospf, nbr_addr); |
1959 | if (nbr_nbma == NULL) | |
1960 | return 0; | |
718e3744 | 1961 | |
d62a17ae | 1962 | if (nbr_nbma->v_poll != interval) { |
1963 | nbr_nbma->v_poll = interval; | |
1964 | if (nbr_nbma->oi && ospf_if_is_up(nbr_nbma->oi)) { | |
1965 | OSPF_TIMER_OFF(nbr_nbma->t_poll); | |
1966 | OSPF_POLL_TIMER_ON(nbr_nbma->t_poll, ospf_poll_timer, | |
1967 | nbr_nbma->v_poll); | |
1968 | } | |
718e3744 | 1969 | } |
718e3744 | 1970 | |
d62a17ae | 1971 | return 1; |
718e3744 | 1972 | } |
1973 | ||
d62a17ae | 1974 | int ospf_nbr_nbma_poll_interval_unset(struct ospf *ospf, struct in_addr addr) |
718e3744 | 1975 | { |
d62a17ae | 1976 | struct ospf_nbr_nbma *nbr_nbma; |
718e3744 | 1977 | |
d62a17ae | 1978 | nbr_nbma = ospf_nbr_nbma_lookup(ospf, addr); |
1979 | if (nbr_nbma == NULL) | |
1980 | return 0; | |
718e3744 | 1981 | |
d62a17ae | 1982 | if (nbr_nbma->v_poll != OSPF_POLL_INTERVAL_DEFAULT) |
1983 | nbr_nbma->v_poll = OSPF_POLL_INTERVAL_DEFAULT; | |
718e3744 | 1984 | |
d62a17ae | 1985 | return 1; |
718e3744 | 1986 | } |
1987 | ||
d62a17ae | 1988 | void ospf_master_init(struct thread_master *master) |
718e3744 | 1989 | { |
d62a17ae | 1990 | memset(&ospf_master, 0, sizeof(struct ospf_master)); |
020709f9 | 1991 | |
d62a17ae | 1992 | om = &ospf_master; |
1993 | om->ospf = list_new(); | |
1994 | om->master = master; | |
020709f9 | 1995 | } |
b5a8894d CS |
1996 | |
1997 | /* Link OSPF instance to VRF. */ | |
1998 | void ospf_vrf_link(struct ospf *ospf, struct vrf *vrf) | |
1999 | { | |
2000 | ospf->vrf_id = vrf->vrf_id; | |
2001 | if (vrf->info != (void *)ospf) | |
2002 | vrf->info = (void *)ospf; | |
2003 | } | |
2004 | ||
2005 | /* Unlink OSPF instance from VRF. */ | |
2006 | void ospf_vrf_unlink(struct ospf *ospf, struct vrf *vrf) | |
2007 | { | |
2008 | if (vrf->info == (void *)ospf) | |
2009 | vrf->info = NULL; | |
2010 | ospf->vrf_id = VRF_UNKNOWN; | |
2011 | } | |
2012 | ||
2013 | /* This is hook function for vrf create called as part of vrf_init */ | |
2014 | static int ospf_vrf_new(struct vrf *vrf) | |
2015 | { | |
2016 | if (IS_DEBUG_OSPF_EVENT) | |
2017 | zlog_debug("%s: VRF Created: %s(%d)", __PRETTY_FUNCTION__, | |
2018 | vrf->name, vrf->vrf_id); | |
2019 | ||
2020 | return 0; | |
2021 | } | |
2022 | ||
2023 | /* This is hook function for vrf delete call as part of vrf_init */ | |
2024 | static int ospf_vrf_delete(struct vrf *vrf) | |
2025 | { | |
2026 | if (IS_DEBUG_OSPF_EVENT) | |
2027 | zlog_debug("%s: VRF Deletion: %s(%d)", __PRETTY_FUNCTION__, | |
2028 | vrf->name, vrf->vrf_id); | |
2029 | ||
2030 | return 0; | |
2031 | } | |
2032 | ||
2033 | /* Enable OSPF VRF instance */ | |
2034 | static int ospf_vrf_enable(struct vrf *vrf) | |
2035 | { | |
2036 | struct ospf *ospf = NULL; | |
2037 | vrf_id_t old_vrf_id = VRF_DEFAULT; | |
2038 | ||
2039 | if (IS_DEBUG_OSPF_EVENT) | |
2040 | zlog_debug("%s: VRF %s id %d enabled", | |
2041 | __PRETTY_FUNCTION__, vrf->name, vrf->vrf_id); | |
2042 | ||
2043 | ospf = ospf_lookup_by_name(vrf->name); | |
2044 | if (ospf) { | |
2045 | old_vrf_id = ospf->vrf_id; | |
2046 | /* We have instance configured, link to VRF and make it "up". */ | |
2047 | ospf_vrf_link(ospf, vrf); | |
2048 | if (IS_DEBUG_OSPF_EVENT) | |
2049 | zlog_debug("%s: ospf linked to vrf %s vrf_id %d (old id %d)", | |
2050 | __PRETTY_FUNCTION__, vrf->name, ospf->vrf_id, | |
2051 | old_vrf_id); | |
2052 | ||
2053 | if (old_vrf_id != ospf->vrf_id) { | |
e7503eab CS |
2054 | if (ospfd_privs.change(ZPRIVS_RAISE)) { |
2055 | zlog_err("ospf_sock_init: could not raise privs, %s", | |
2056 | safe_strerror(errno)); | |
2057 | } | |
2058 | if (ospf_bind_vrfdevice(ospf, ospf->fd) < 0) | |
2059 | return 0; | |
2060 | if (ospfd_privs.change(ZPRIVS_LOWER)) { | |
2061 | zlog_err("ospf_sock_init: could not lower privs, %s", | |
2062 | safe_strerror(errno)); | |
2063 | } | |
2064 | ||
b5a8894d | 2065 | ospf->oi_running = 1; |
6021c6c0 | 2066 | ospf_zebra_vrf_register(ospf); |
b5a8894d CS |
2067 | ospf_router_id_update(ospf); |
2068 | } | |
2069 | } | |
2070 | ||
2071 | return 0; | |
2072 | } | |
2073 | ||
2074 | /* Disable OSPF VRF instance */ | |
2075 | static int ospf_vrf_disable(struct vrf *vrf) | |
2076 | { | |
2077 | struct ospf *ospf = NULL; | |
2078 | vrf_id_t old_vrf_id = VRF_UNKNOWN; | |
2079 | ||
2080 | if (vrf->vrf_id == VRF_DEFAULT) | |
2081 | return 0; | |
2082 | ||
2083 | if (IS_DEBUG_OSPF_EVENT) | |
2084 | zlog_debug("%s: VRF %s id %d disabled.", | |
2085 | __PRETTY_FUNCTION__, vrf->name, vrf->vrf_id); | |
2086 | ||
2087 | ospf = ospf_lookup_by_name(vrf->name); | |
2088 | if (ospf) { | |
2089 | old_vrf_id = ospf->vrf_id; | |
2090 | ||
2091 | /* We have instance configured, unlink | |
2092 | * from VRF and make it "down". | |
2093 | */ | |
2094 | ospf_vrf_unlink(ospf, vrf); | |
2095 | ospf->oi_running = 0; | |
2096 | if (IS_DEBUG_OSPF_EVENT) | |
2097 | zlog_debug("%s: ospf old_vrf_id %d unlinked", | |
2098 | __PRETTY_FUNCTION__, old_vrf_id); | |
2099 | } | |
2100 | ||
2101 | /* Note: This is a callback, the VRF will be deleted by the caller. */ | |
2102 | return 0; | |
2103 | } | |
2104 | ||
2105 | void ospf_vrf_init(void) | |
2106 | { | |
2107 | vrf_init(ospf_vrf_new, ospf_vrf_enable, | |
2108 | ospf_vrf_disable, ospf_vrf_delete); | |
2109 | } | |
2110 | ||
2111 | void ospf_vrf_terminate(void) | |
2112 | { | |
2113 | vrf_terminate(); | |
2114 | } | |
2115 | ||
2116 | const char *ospf_vrf_id_to_name(vrf_id_t vrf_id) | |
2117 | { | |
2118 | struct vrf *vrf = vrf_lookup_by_id(vrf_id); | |
2119 | ||
2120 | return vrf ? vrf->name : "NIL"; | |
2121 | } |