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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" |
ded42248 | 35 | #include "routemap.h" |
718e3744 | 36 | #include "plist.h" |
f102e75f | 37 | #include "sockopt.h" |
567b877d | 38 | #include "bfd.h" |
8879bd22 | 39 | #include "libfrr.h" |
8efe88ea | 40 | #include "defaults.h" |
718e3744 | 41 | |
42 | #include "ospfd/ospfd.h" | |
43 | #include "ospfd/ospf_network.h" | |
44 | #include "ospfd/ospf_interface.h" | |
45 | #include "ospfd/ospf_ism.h" | |
46 | #include "ospfd/ospf_asbr.h" | |
47 | #include "ospfd/ospf_lsa.h" | |
48 | #include "ospfd/ospf_lsdb.h" | |
49 | #include "ospfd/ospf_neighbor.h" | |
50 | #include "ospfd/ospf_nsm.h" | |
51 | #include "ospfd/ospf_spf.h" | |
52 | #include "ospfd/ospf_packet.h" | |
53 | #include "ospfd/ospf_dump.h" | |
54 | #include "ospfd/ospf_zebra.h" | |
55 | #include "ospfd/ospf_abr.h" | |
56 | #include "ospfd/ospf_flood.h" | |
57 | #include "ospfd/ospf_route.h" | |
58 | #include "ospfd/ospf_ase.h" | |
59 | ||
6b0655a2 | 60 | |
ae19c240 | 61 | DEFINE_QOBJ_TYPE(ospf) |
edd7c245 | 62 | |
020709f9 | 63 | /* OSPF process wide configuration. */ |
64 | static struct ospf_master ospf_master; | |
65 | ||
66 | /* OSPF process wide configuration pointer to export. */ | |
67 | struct ospf_master *om; | |
718e3744 | 68 | |
69 | extern struct zclient *zclient; | |
70 | ||
6b0655a2 | 71 | |
d62a17ae | 72 | static void ospf_remove_vls_through_area(struct ospf *, struct ospf_area *); |
73 | static void ospf_network_free(struct ospf *, struct ospf_network *); | |
74 | static void ospf_area_free(struct ospf_area *); | |
75 | static void ospf_network_run(struct prefix *, struct ospf_area *); | |
76 | static void ospf_network_run_interface(struct ospf *, struct interface *, | |
77 | struct prefix *, struct ospf_area *); | |
78 | static void ospf_network_run_subnet(struct ospf *, struct connected *, | |
79 | struct prefix *, struct ospf_area *); | |
80 | static int ospf_network_match_iface(const struct connected *, | |
81 | const struct prefix *); | |
82 | static void ospf_finish_final(struct ospf *); | |
718e3744 | 83 | |
718e3744 | 84 | #define OSPF_EXTERNAL_LSA_ORIGINATE_DELAY 1 |
6b0655a2 | 85 | |
d62a17ae | 86 | void ospf_router_id_update(struct ospf *ospf) |
718e3744 | 87 | { |
f4e14fdb | 88 | struct vrf *vrf = vrf_lookup_by_id(ospf->vrf_id); |
d62a17ae | 89 | struct in_addr router_id, router_id_old; |
90 | struct ospf_interface *oi; | |
91 | struct interface *ifp; | |
92 | struct listnode *node; | |
93 | int type; | |
2c19a6ec | 94 | |
d62a17ae | 95 | if (!ospf->oi_running) { |
96 | if (IS_DEBUG_OSPF_EVENT) | |
97 | zlog_debug( | |
98 | "Router ospf not configured -- Router-ID update postponed"); | |
99 | return; | |
25a346eb | 100 | } |
718e3744 | 101 | |
d62a17ae | 102 | if (IS_DEBUG_OSPF_EVENT) |
103 | zlog_debug("Router-ID[OLD:%s]: Update", | |
104 | inet_ntoa(ospf->router_id)); | |
105 | ||
106 | router_id_old = ospf->router_id; | |
107 | ||
108 | /* Select the router ID based on these priorities: | |
109 | 1. Statically assigned router ID is always the first choice. | |
110 | 2. If there is no statically assigned router ID, then try to stick | |
111 | with the most recent value, since changing router ID's is very | |
112 | disruptive. | |
113 | 3. Last choice: just go with whatever the zebra daemon recommends. | |
114 | */ | |
115 | if (ospf->router_id_static.s_addr != 0) | |
116 | router_id = ospf->router_id_static; | |
117 | else if (ospf->router_id.s_addr != 0) | |
118 | router_id = ospf->router_id; | |
119 | else | |
6021c6c0 | 120 | router_id = ospf->router_id_zebra; |
d62a17ae | 121 | |
b5a8894d CS |
122 | if (IS_DEBUG_OSPF_EVENT) |
123 | zlog_debug("Router-ID[OLD:%s]: Update to %s", | |
996c9314 | 124 | inet_ntoa(ospf->router_id), 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 | ||
996c9314 | 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) | |
996c9314 LB |
243 | zlog_debug( |
244 | "%s: Create new ospf instance with vrf_name %s vrf_id %u", | |
245 | __PRETTY_FUNCTION__, name, new->vrf_id); | |
b5a8894d CS |
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 | ||
d62a17ae | 311 | if ((new->ibuf = stream_new(OSPF_MAX_PACKET_SIZE + 1)) == NULL) { |
312 | zlog_err( | |
313 | "ospf_new: fatal error: stream_new(%u) failed allocating ibuf", | |
314 | OSPF_MAX_PACKET_SIZE + 1); | |
315 | exit(1); | |
316 | } | |
317 | new->t_read = NULL; | |
d62a17ae | 318 | new->oi_write_q = list_new(); |
319 | new->write_oi_count = OSPF_WRITE_INTERFACE_COUNT_DEFAULT; | |
320 | ||
321 | /* Enable "log-adjacency-changes" */ | |
8efe88ea | 322 | #if DFLT_OSPF_LOG_ADJACENCY_CHANGES |
d62a17ae | 323 | SET_FLAG(new->config, OSPF_LOG_ADJACENCY_CHANGES); |
8efe88ea | 324 | #endif |
3e7c8d04 | 325 | |
d62a17ae | 326 | QOBJ_REG(new, ospf); |
ae19c240 | 327 | |
3c0eb8fa PG |
328 | new->fd = -1; |
329 | if ((ospf_sock_init(new)) < 0) { | |
330 | if (new->vrf_id != VRF_UNKNOWN) | |
331 | zlog_warn( | |
996c9314 LB |
332 | "%s: ospf_sock_init is unable to open a socket", |
333 | __func__); | |
3c0eb8fa PG |
334 | return new; |
335 | } | |
336 | thread_add_read(master, ospf_read, new, new->fd, &new->t_read); | |
337 | ||
d62a17ae | 338 | return new; |
718e3744 | 339 | } |
340 | ||
d62a17ae | 341 | struct ospf *ospf_lookup_instance(u_short instance) |
7c8ff89e | 342 | { |
d62a17ae | 343 | struct ospf *ospf; |
344 | struct listnode *node, *nnode; | |
7c8ff89e | 345 | |
d62a17ae | 346 | if (listcount(om->ospf) == 0) |
347 | return NULL; | |
7c8ff89e | 348 | |
d62a17ae | 349 | for (ALL_LIST_ELEMENTS(om->ospf, node, nnode, ospf)) |
350 | if ((ospf->instance == 0 && instance == 0) | |
351 | || (ospf->instance && instance | |
352 | && ospf->instance == instance)) | |
353 | return ospf; | |
7c8ff89e | 354 | |
d62a17ae | 355 | return NULL; |
7c8ff89e DS |
356 | } |
357 | ||
d62a17ae | 358 | static int ospf_is_ready(struct ospf *ospf) |
52c62ab8 | 359 | { |
d62a17ae | 360 | /* OSPF must be on and Router-ID must be configured. */ |
361 | if (!ospf || ospf->router_id.s_addr == 0) | |
362 | return 0; | |
363 | ||
364 | return 1; | |
52c62ab8 JAG |
365 | } |
366 | ||
d62a17ae | 367 | static void ospf_add(struct ospf *ospf) |
020709f9 | 368 | { |
d62a17ae | 369 | listnode_add(om->ospf, ospf); |
020709f9 | 370 | } |
718e3744 | 371 | |
d62a17ae | 372 | static void ospf_delete(struct ospf *ospf) |
020709f9 | 373 | { |
d62a17ae | 374 | listnode_delete(om->ospf, ospf); |
020709f9 | 375 | } |
68980084 | 376 | |
b5a8894d CS |
377 | struct ospf *ospf_lookup_by_inst_name(u_short instance, const char *name) |
378 | { | |
379 | struct ospf *ospf = NULL; | |
380 | struct listnode *node, *nnode; | |
381 | ||
382 | for (ALL_LIST_ELEMENTS(om->ospf, node, nnode, ospf)) { | |
996c9314 LB |
383 | if ((ospf->instance == instance) |
384 | && ((ospf->name == NULL && name == NULL) | |
385 | || (ospf->name && name | |
386 | && strcmp(ospf->name, name) == 0))) | |
b5a8894d CS |
387 | return ospf; |
388 | } | |
389 | return NULL; | |
390 | } | |
391 | ||
392 | struct ospf *ospf_get(u_short instance, const char *name) | |
020709f9 | 393 | { |
d62a17ae | 394 | struct ospf *ospf; |
020709f9 | 395 | |
b5a8894d CS |
396 | /* vrf name provided call inst and name based api |
397 | * in case of no name pass default ospf instance */ | |
398 | if (name) | |
399 | ospf = ospf_lookup_by_inst_name(instance, name); | |
400 | else | |
401 | ospf = ospf_lookup_by_vrf_id(VRF_DEFAULT); | |
402 | ||
d62a17ae | 403 | if (ospf == NULL) { |
b5a8894d | 404 | ospf = ospf_new(instance, name); |
d62a17ae | 405 | ospf_add(ospf); |
7c8ff89e | 406 | |
d62a17ae | 407 | if (ospf->router_id_static.s_addr == 0) |
408 | ospf_router_id_update(ospf); | |
7c8ff89e | 409 | |
d62a17ae | 410 | ospf_opaque_type11_lsa_init(ospf); |
411 | } | |
7c8ff89e | 412 | |
d62a17ae | 413 | return ospf; |
7c8ff89e DS |
414 | } |
415 | ||
d62a17ae | 416 | struct ospf *ospf_get_instance(u_short instance) |
7c8ff89e | 417 | { |
d62a17ae | 418 | struct ospf *ospf; |
7c8ff89e | 419 | |
d62a17ae | 420 | ospf = ospf_lookup_instance(instance); |
421 | if (ospf == NULL) { | |
b5a8894d | 422 | ospf = ospf_new(instance, NULL /* VRF_DEFAULT*/); |
d62a17ae | 423 | ospf_add(ospf); |
020709f9 | 424 | |
b5a8894d CS |
425 | if (ospf->router_id_static.s_addr == 0) { |
426 | if (vrf_lookup_by_id(ospf->vrf_id)) | |
427 | ospf_router_id_update(ospf); | |
428 | else { | |
429 | if (IS_DEBUG_OSPF_EVENT) | |
996c9314 LB |
430 | zlog_debug( |
431 | "%s: ospf VRF (id %d) is not active yet, skip router id update", | |
432 | __PRETTY_FUNCTION__, | |
433 | ospf->vrf_id); | |
b5a8894d | 434 | } |
d62a17ae | 435 | ospf_router_id_update(ospf); |
b5a8894d | 436 | } |
718e3744 | 437 | |
d62a17ae | 438 | ospf_opaque_type11_lsa_init(ospf); |
439 | } | |
68980084 | 440 | |
d62a17ae | 441 | return ospf; |
718e3744 | 442 | } |
6b0655a2 | 443 | |
b5a8894d CS |
444 | struct ospf *ospf_lookup_by_vrf_id(vrf_id_t vrf_id) |
445 | { | |
446 | struct vrf *vrf = NULL; | |
447 | ||
448 | vrf = vrf_lookup_by_id(vrf_id); | |
449 | if (!vrf) | |
450 | return NULL; | |
451 | return (vrf->info) ? (struct ospf *)vrf->info : NULL; | |
b5a8894d CS |
452 | } |
453 | ||
43b8d1d8 CS |
454 | /* It should only be used when processing incoming info update from zebra. |
455 | * Other situations, it is not sufficient to lookup the ospf instance by | |
456 | * vrf_name only without using the instance number. | |
457 | */ | |
458 | static struct ospf *ospf_lookup_by_name(const char *vrf_name) | |
b5a8894d CS |
459 | { |
460 | struct ospf *ospf = NULL; | |
461 | struct listnode *node, *nnode; | |
462 | ||
463 | for (ALL_LIST_ELEMENTS(om->ospf, node, nnode, ospf)) | |
43b8d1d8 | 464 | if ((ospf->name == NULL && vrf_name == NULL) |
996c9314 LB |
465 | || (ospf->name && vrf_name |
466 | && strcmp(ospf->name, vrf_name) == 0)) | |
b5a8894d CS |
467 | return ospf; |
468 | return NULL; | |
469 | } | |
470 | ||
c9c93d50 | 471 | /* Handle the second half of deferred shutdown. This is called either |
472 | * from the deferred-shutdown timer thread, or directly through | |
473 | * ospf_deferred_shutdown_check. | |
88d6cf37 | 474 | * |
475 | * Function is to cleanup G-R state, if required then call ospf_finish_final | |
476 | * to complete shutdown of this ospf instance. Possibly exit if the | |
477 | * whole process is being shutdown and this was the last OSPF instance. | |
478 | */ | |
d62a17ae | 479 | static void ospf_deferred_shutdown_finish(struct ospf *ospf) |
480 | { | |
481 | ospf->stub_router_shutdown_time = OSPF_STUB_ROUTER_UNCONFIGURED; | |
482 | OSPF_TIMER_OFF(ospf->t_deferred_shutdown); | |
483 | ||
484 | ospf_finish_final(ospf); | |
485 | ||
486 | /* *ospf is now invalid */ | |
88d6cf37 | 487 | |
d62a17ae | 488 | /* ospfd being shut-down? If so, was this the last ospf instance? */ |
489 | if (CHECK_FLAG(om->options, OSPF_MASTER_SHUTDOWN) | |
490 | && (listcount(om->ospf) == 0)) { | |
491 | exit(0); | |
492 | } | |
493 | ||
494 | return; | |
88d6cf37 | 495 | } |
496 | ||
497 | /* Timer thread for G-R */ | |
d62a17ae | 498 | static int ospf_deferred_shutdown_timer(struct thread *t) |
88d6cf37 | 499 | { |
d62a17ae | 500 | struct ospf *ospf = THREAD_ARG(t); |
501 | ||
502 | ospf_deferred_shutdown_finish(ospf); | |
503 | ||
504 | return 0; | |
88d6cf37 | 505 | } |
506 | ||
c9c93d50 | 507 | /* Check whether deferred-shutdown must be scheduled, otherwise call |
88d6cf37 | 508 | * down directly into second-half of instance shutdown. |
509 | */ | |
d62a17ae | 510 | static void ospf_deferred_shutdown_check(struct ospf *ospf) |
511 | { | |
512 | unsigned long timeout; | |
513 | struct listnode *ln; | |
514 | struct ospf_area *area; | |
515 | ||
516 | /* deferred shutdown already running? */ | |
517 | if (ospf->t_deferred_shutdown) | |
518 | return; | |
519 | ||
520 | /* Should we try push out max-metric LSAs? */ | |
521 | if (ospf->stub_router_shutdown_time != OSPF_STUB_ROUTER_UNCONFIGURED) { | |
522 | for (ALL_LIST_ELEMENTS_RO(ospf->areas, ln, area)) { | |
523 | SET_FLAG(area->stub_router_state, | |
524 | OSPF_AREA_ADMIN_STUB_ROUTED); | |
525 | ||
526 | if (!CHECK_FLAG(area->stub_router_state, | |
527 | OSPF_AREA_IS_STUB_ROUTED)) | |
528 | ospf_router_lsa_update_area(area); | |
529 | } | |
530 | timeout = ospf->stub_router_shutdown_time; | |
531 | } else { | |
532 | /* No timer needed */ | |
533 | ospf_deferred_shutdown_finish(ospf); | |
534 | return; | |
535 | } | |
536 | ||
537 | OSPF_TIMER_ON(ospf->t_deferred_shutdown, ospf_deferred_shutdown_timer, | |
538 | timeout); | |
539 | return; | |
88d6cf37 | 540 | } |
6b0655a2 | 541 | |
88d6cf37 | 542 | /* Shut down the entire process */ |
d62a17ae | 543 | void ospf_terminate(void) |
544 | { | |
545 | struct ospf *ospf; | |
546 | struct listnode *node, *nnode; | |
547 | ||
548 | /* shutdown already in progress */ | |
549 | if (CHECK_FLAG(om->options, OSPF_MASTER_SHUTDOWN)) | |
550 | return; | |
551 | ||
552 | SET_FLAG(om->options, OSPF_MASTER_SHUTDOWN); | |
553 | ||
554 | /* exit immediately if OSPF not actually running */ | |
555 | if (listcount(om->ospf) == 0) | |
556 | exit(0); | |
557 | ||
558 | bfd_gbl_exit(); | |
559 | for (ALL_LIST_ELEMENTS(om->ospf, node, nnode, ospf)) | |
560 | ospf_finish(ospf); | |
561 | ||
ded42248 CS |
562 | /* Cleanup route maps */ |
563 | route_map_add_hook(NULL); | |
564 | route_map_delete_hook(NULL); | |
565 | route_map_event_hook(NULL); | |
566 | route_map_finish(); | |
567 | ||
568 | /* reverse prefix_list_init */ | |
569 | prefix_list_add_hook(NULL); | |
570 | prefix_list_delete_hook(NULL); | |
571 | prefix_list_reset(); | |
572 | ||
573 | /* Cleanup vrf info */ | |
574 | ospf_vrf_terminate(); | |
575 | ||
d62a17ae | 576 | /* Deliberately go back up, hopefully to thread scheduler, as |
577 | * One or more ospf_finish()'s may have deferred shutdown to a timer | |
578 | * thread | |
579 | */ | |
580 | zclient_stop(zclient); | |
581 | zclient_free(zclient); | |
8879bd22 RW |
582 | |
583 | frr_fini(); | |
d62a17ae | 584 | } |
585 | ||
586 | void ospf_finish(struct ospf *ospf) | |
587 | { | |
588 | /* let deferred shutdown decide */ | |
589 | ospf_deferred_shutdown_check(ospf); | |
590 | ||
591 | /* if ospf_deferred_shutdown returns, then ospf_finish_final is | |
592 | * deferred to expiry of G-S timer thread. Return back up, hopefully | |
593 | * to thread scheduler. | |
594 | */ | |
595 | return; | |
88d6cf37 | 596 | } |
597 | ||
598 | /* Final cleanup of ospf instance */ | |
d62a17ae | 599 | static void ospf_finish_final(struct ospf *ospf) |
718e3744 | 600 | { |
f4e14fdb | 601 | struct vrf *vrf = vrf_lookup_by_id(ospf->vrf_id); |
d62a17ae | 602 | struct route_node *rn; |
603 | struct ospf_nbr_nbma *nbr_nbma; | |
604 | struct ospf_lsa *lsa; | |
605 | struct interface *ifp; | |
606 | struct ospf_interface *oi; | |
607 | struct ospf_area *area; | |
608 | struct ospf_vl_data *vl_data; | |
609 | struct listnode *node, *nnode; | |
610 | int i; | |
611 | u_short instance = 0; | |
7c8ff89e | 612 | |
d62a17ae | 613 | QOBJ_UNREG(ospf); |
7c8ff89e | 614 | |
d62a17ae | 615 | ospf_opaque_type11_lsa_term(ospf); |
953cde65 | 616 | |
bcf4475e OD |
617 | ospf_opaque_finish(); |
618 | ||
046460a1 | 619 | ospf_flush_self_originated_lsas_now(ospf); |
953cde65 | 620 | |
d62a17ae | 621 | /* Unregister redistribution */ |
622 | for (i = 0; i < ZEBRA_ROUTE_MAX; i++) { | |
623 | struct list *red_list; | |
624 | struct ospf_redist *red; | |
718e3744 | 625 | |
d62a17ae | 626 | red_list = ospf->redist[i]; |
627 | if (!red_list) | |
628 | continue; | |
718e3744 | 629 | |
d62a17ae | 630 | for (ALL_LIST_ELEMENTS(red_list, node, nnode, red)) |
631 | ospf_redistribute_unset(ospf, i, red->instance); | |
632 | } | |
633 | ospf_redistribute_default_unset(ospf); | |
718e3744 | 634 | |
d62a17ae | 635 | for (ALL_LIST_ELEMENTS(ospf->areas, node, nnode, area)) |
636 | ospf_remove_vls_through_area(ospf, area); | |
718e3744 | 637 | |
d62a17ae | 638 | for (ALL_LIST_ELEMENTS(ospf->vlinks, node, nnode, vl_data)) |
639 | ospf_vl_delete(ospf, vl_data); | |
718e3744 | 640 | |
affe9e99 | 641 | list_delete_and_null(&ospf->vlinks); |
718e3744 | 642 | |
d62a17ae | 643 | /* Remove any ospf interface config params */ |
451fda4f | 644 | FOR_ALL_INTERFACES (vrf, ifp) { |
d62a17ae | 645 | struct ospf_if_params *params; |
718e3744 | 646 | |
d62a17ae | 647 | params = IF_DEF_PARAMS(ifp); |
648 | if (OSPF_IF_PARAM_CONFIGURED(params, if_area)) | |
649 | UNSET_IF_PARAM(params, if_area); | |
718e3744 | 650 | } |
718e3744 | 651 | |
d62a17ae | 652 | /* Reset interface. */ |
653 | for (ALL_LIST_ELEMENTS(ospf->oiflist, node, nnode, oi)) | |
654 | ospf_if_free(oi); | |
84519c81 | 655 | list_delete_and_null(&ospf->oiflist); |
718e3744 | 656 | |
b5a8894d CS |
657 | /* De-Register VRF */ |
658 | ospf_zebra_vrf_deregister(ospf); | |
659 | ||
d62a17ae | 660 | /* Clear static neighbors */ |
661 | for (rn = route_top(ospf->nbr_nbma); rn; rn = route_next(rn)) | |
662 | if ((nbr_nbma = rn->info)) { | |
663 | OSPF_POLL_TIMER_OFF(nbr_nbma->t_poll); | |
718e3744 | 664 | |
d62a17ae | 665 | if (nbr_nbma->nbr) { |
666 | nbr_nbma->nbr->nbr_nbma = NULL; | |
667 | nbr_nbma->nbr = NULL; | |
668 | } | |
669 | ||
670 | if (nbr_nbma->oi) { | |
671 | listnode_delete(nbr_nbma->oi->nbr_nbma, | |
672 | nbr_nbma); | |
673 | nbr_nbma->oi = NULL; | |
674 | } | |
675 | ||
676 | XFREE(MTYPE_OSPF_NEIGHBOR_STATIC, nbr_nbma); | |
677 | } | |
678 | ||
679 | route_table_finish(ospf->nbr_nbma); | |
680 | ||
681 | /* Clear networks and Areas. */ | |
682 | for (rn = route_top(ospf->networks); rn; rn = route_next(rn)) { | |
683 | struct ospf_network *network; | |
684 | ||
685 | if ((network = rn->info) != NULL) { | |
686 | ospf_network_free(ospf, network); | |
687 | rn->info = NULL; | |
688 | route_unlock_node(rn); | |
689 | } | |
91e6a0e5 | 690 | } |
7f586094 | 691 | route_table_finish(ospf->networks); |
718e3744 | 692 | |
d62a17ae | 693 | for (ALL_LIST_ELEMENTS(ospf->areas, node, nnode, area)) { |
694 | listnode_delete(ospf->areas, area); | |
695 | ospf_area_free(area); | |
696 | } | |
718e3744 | 697 | |
d62a17ae | 698 | /* Cancel all timers. */ |
699 | OSPF_TIMER_OFF(ospf->t_external_lsa); | |
700 | OSPF_TIMER_OFF(ospf->t_spf_calc); | |
701 | OSPF_TIMER_OFF(ospf->t_ase_calc); | |
702 | OSPF_TIMER_OFF(ospf->t_maxage); | |
703 | OSPF_TIMER_OFF(ospf->t_maxage_walker); | |
704 | OSPF_TIMER_OFF(ospf->t_abr_task); | |
705 | OSPF_TIMER_OFF(ospf->t_asbr_check); | |
706 | OSPF_TIMER_OFF(ospf->t_distribute_update); | |
707 | OSPF_TIMER_OFF(ospf->t_lsa_refresher); | |
708 | OSPF_TIMER_OFF(ospf->t_read); | |
709 | OSPF_TIMER_OFF(ospf->t_write); | |
710 | OSPF_TIMER_OFF(ospf->t_opaque_lsa_self); | |
45a43856 | 711 | OSPF_TIMER_OFF(ospf->t_sr_update); |
d62a17ae | 712 | |
713 | close(ospf->fd); | |
714 | stream_free(ospf->ibuf); | |
715 | ||
996c9314 | 716 | LSDB_LOOP (OPAQUE_AS_LSDB(ospf), rn, lsa) |
044506e7 | 717 | ospf_discard_from_db(ospf, ospf->lsdb, lsa); |
996c9314 | 718 | LSDB_LOOP (EXTERNAL_LSDB(ospf), rn, lsa) |
044506e7 | 719 | ospf_discard_from_db(ospf, ospf->lsdb, lsa); |
d62a17ae | 720 | |
721 | ospf_lsdb_delete_all(ospf->lsdb); | |
722 | ospf_lsdb_free(ospf->lsdb); | |
723 | ||
724 | for (rn = route_top(ospf->maxage_lsa); rn; rn = route_next(rn)) { | |
725 | struct ospf_lsa *lsa; | |
726 | ||
727 | if ((lsa = rn->info) != NULL) { | |
728 | ospf_lsa_unlock(&lsa); | |
729 | rn->info = NULL; | |
730 | } | |
731 | route_unlock_node(rn); | |
732 | } | |
733 | route_table_finish(ospf->maxage_lsa); | |
734 | ||
735 | if (ospf->old_table) | |
736 | ospf_route_table_free(ospf->old_table); | |
737 | if (ospf->new_table) { | |
b5a8894d | 738 | ospf_route_delete(ospf, ospf->new_table); |
d62a17ae | 739 | ospf_route_table_free(ospf->new_table); |
740 | } | |
741 | if (ospf->old_rtrs) | |
742 | ospf_rtrs_free(ospf->old_rtrs); | |
743 | if (ospf->new_rtrs) | |
744 | ospf_rtrs_free(ospf->new_rtrs); | |
745 | if (ospf->new_external_route) { | |
b5a8894d | 746 | ospf_route_delete(ospf, ospf->new_external_route); |
d62a17ae | 747 | ospf_route_table_free(ospf->new_external_route); |
748 | } | |
749 | if (ospf->old_external_route) { | |
b5a8894d | 750 | ospf_route_delete(ospf, ospf->old_external_route); |
d62a17ae | 751 | ospf_route_table_free(ospf->old_external_route); |
752 | } | |
753 | if (ospf->external_lsas) { | |
754 | ospf_ase_external_lsas_finish(ospf->external_lsas); | |
755 | } | |
718e3744 | 756 | |
affe9e99 DS |
757 | list_delete_and_null(&ospf->areas); |
758 | list_delete_and_null(&ospf->oi_write_q); | |
d62a17ae | 759 | |
760 | for (i = ZEBRA_ROUTE_SYSTEM; i <= ZEBRA_ROUTE_MAX; i++) { | |
761 | struct list *ext_list; | |
762 | struct listnode *node; | |
763 | struct ospf_external *ext; | |
764 | ||
de1ac5fd | 765 | ext_list = ospf->external[i]; |
d62a17ae | 766 | if (!ext_list) |
767 | continue; | |
768 | ||
769 | for (ALL_LIST_ELEMENTS_RO(ext_list, node, ext)) { | |
770 | if (ext->external_info) | |
771 | for (rn = route_top(ext->external_info); rn; | |
772 | rn = route_next(rn)) { | |
773 | if (rn->info == NULL) | |
774 | continue; | |
775 | ||
776 | XFREE(MTYPE_OSPF_EXTERNAL_INFO, | |
777 | rn->info); | |
778 | rn->info = NULL; | |
779 | route_unlock_node(rn); | |
780 | } | |
781 | } | |
782 | } | |
718e3744 | 783 | |
d62a17ae | 784 | ospf_distance_reset(ospf); |
785 | route_table_finish(ospf->distance_table); | |
7c8ff89e | 786 | |
d62a17ae | 787 | if (!CHECK_FLAG(om->options, OSPF_MASTER_SHUTDOWN)) |
788 | instance = ospf->instance; | |
718e3744 | 789 | |
d62a17ae | 790 | ospf_delete(ospf); |
7c8ff89e | 791 | |
b5a8894d CS |
792 | if (ospf->name) { |
793 | vrf = vrf_lookup_by_name(ospf->name); | |
794 | if (vrf) | |
795 | ospf_vrf_unlink(ospf, vrf); | |
796 | XFREE(MTYPE_OSPF_TOP, ospf->name); | |
797 | } else { | |
798 | vrf = vrf_lookup_by_id(VRF_DEFAULT); | |
799 | if (vrf) | |
800 | ospf_vrf_unlink(ospf, vrf); | |
801 | } | |
802 | ||
d62a17ae | 803 | XFREE(MTYPE_OSPF_TOP, ospf); |
7c8ff89e | 804 | |
d62a17ae | 805 | if (!CHECK_FLAG(om->options, OSPF_MASTER_SHUTDOWN)) |
806 | ospf_get_instance(instance); | |
718e3744 | 807 | } |
808 | ||
6b0655a2 | 809 | |
718e3744 | 810 | /* allocate new OSPF Area object */ |
d62a17ae | 811 | static struct ospf_area *ospf_area_new(struct ospf *ospf, |
812 | struct in_addr area_id) | |
718e3744 | 813 | { |
d62a17ae | 814 | struct ospf_area *new; |
718e3744 | 815 | |
d62a17ae | 816 | /* Allocate new config_network. */ |
817 | new = XCALLOC(MTYPE_OSPF_AREA, sizeof(struct ospf_area)); | |
718e3744 | 818 | |
d62a17ae | 819 | new->ospf = ospf; |
718e3744 | 820 | |
d62a17ae | 821 | new->area_id = area_id; |
822 | new->area_id_fmt = OSPF_AREA_ID_FMT_DOTTEDQUAD; | |
718e3744 | 823 | |
d62a17ae | 824 | new->external_routing = OSPF_AREA_DEFAULT; |
825 | new->default_cost = 1; | |
826 | new->auth_type = OSPF_AUTH_NULL; | |
718e3744 | 827 | |
d62a17ae | 828 | /* New LSDB init. */ |
829 | new->lsdb = ospf_lsdb_new(); | |
718e3744 | 830 | |
d62a17ae | 831 | /* Self-originated LSAs initialize. */ |
832 | new->router_lsa_self = NULL; | |
718e3744 | 833 | |
d62a17ae | 834 | ospf_opaque_type10_lsa_init(new); |
718e3744 | 835 | |
d62a17ae | 836 | new->oiflist = list_new(); |
837 | new->ranges = route_table_init(); | |
718e3744 | 838 | |
d62a17ae | 839 | if (area_id.s_addr == OSPF_AREA_BACKBONE) |
840 | ospf->backbone = new; | |
841 | ||
842 | return new; | |
718e3744 | 843 | } |
844 | ||
d62a17ae | 845 | static void ospf_area_free(struct ospf_area *area) |
718e3744 | 846 | { |
d62a17ae | 847 | struct route_node *rn; |
848 | struct ospf_lsa *lsa; | |
849 | ||
7f7f77a0 DS |
850 | ospf_opaque_type10_lsa_term(area); |
851 | ||
d62a17ae | 852 | /* Free LSDBs. */ |
996c9314 | 853 | LSDB_LOOP (ROUTER_LSDB(area), rn, lsa) |
044506e7 | 854 | ospf_discard_from_db(area->ospf, area->lsdb, lsa); |
996c9314 | 855 | LSDB_LOOP (NETWORK_LSDB(area), rn, lsa) |
044506e7 | 856 | ospf_discard_from_db(area->ospf, area->lsdb, lsa); |
996c9314 | 857 | LSDB_LOOP (SUMMARY_LSDB(area), rn, lsa) |
044506e7 | 858 | ospf_discard_from_db(area->ospf, area->lsdb, lsa); |
996c9314 | 859 | LSDB_LOOP (ASBR_SUMMARY_LSDB(area), rn, lsa) |
044506e7 | 860 | ospf_discard_from_db(area->ospf, area->lsdb, lsa); |
68980084 | 861 | |
996c9314 | 862 | LSDB_LOOP (NSSA_LSDB(area), rn, lsa) |
044506e7 | 863 | ospf_discard_from_db(area->ospf, area->lsdb, lsa); |
996c9314 | 864 | LSDB_LOOP (OPAQUE_AREA_LSDB(area), rn, lsa) |
044506e7 | 865 | ospf_discard_from_db(area->ospf, area->lsdb, lsa); |
996c9314 | 866 | LSDB_LOOP (OPAQUE_LINK_LSDB(area), rn, lsa) |
044506e7 | 867 | ospf_discard_from_db(area->ospf, area->lsdb, lsa); |
718e3744 | 868 | |
d62a17ae | 869 | ospf_lsdb_delete_all(area->lsdb); |
870 | ospf_lsdb_free(area->lsdb); | |
718e3744 | 871 | |
d62a17ae | 872 | ospf_lsa_unlock(&area->router_lsa_self); |
718e3744 | 873 | |
d62a17ae | 874 | route_table_finish(area->ranges); |
affe9e99 | 875 | list_delete_and_null(&area->oiflist); |
718e3744 | 876 | |
d62a17ae | 877 | if (EXPORT_NAME(area)) |
878 | free(EXPORT_NAME(area)); | |
718e3744 | 879 | |
d62a17ae | 880 | if (IMPORT_NAME(area)) |
881 | free(IMPORT_NAME(area)); | |
718e3744 | 882 | |
d62a17ae | 883 | /* Cancel timer. */ |
884 | OSPF_TIMER_OFF(area->t_stub_router); | |
885 | OSPF_TIMER_OFF(area->t_opaque_lsa_self); | |
718e3744 | 886 | |
d62a17ae | 887 | if (OSPF_IS_AREA_BACKBONE(area)) |
888 | area->ospf->backbone = NULL; | |
889 | ||
890 | XFREE(MTYPE_OSPF_AREA, area); | |
718e3744 | 891 | } |
892 | ||
d62a17ae | 893 | void ospf_area_check_free(struct ospf *ospf, struct in_addr area_id) |
718e3744 | 894 | { |
d62a17ae | 895 | struct ospf_area *area; |
718e3744 | 896 | |
d62a17ae | 897 | area = ospf_area_lookup_by_area_id(ospf, area_id); |
898 | if (area && listcount(area->oiflist) == 0 && area->ranges->top == NULL | |
899 | && area->shortcut_configured == OSPF_SHORTCUT_DEFAULT | |
900 | && area->external_routing == OSPF_AREA_DEFAULT | |
901 | && area->no_summary == 0 && area->default_cost == 1 | |
902 | && EXPORT_NAME(area) == NULL && IMPORT_NAME(area) == NULL | |
903 | && area->auth_type == OSPF_AUTH_NULL) { | |
904 | listnode_delete(ospf->areas, area); | |
905 | ospf_area_free(area); | |
906 | } | |
718e3744 | 907 | } |
908 | ||
d62a17ae | 909 | struct ospf_area *ospf_area_get(struct ospf *ospf, struct in_addr area_id) |
718e3744 | 910 | { |
d62a17ae | 911 | struct ospf_area *area; |
912 | ||
913 | area = ospf_area_lookup_by_area_id(ospf, area_id); | |
914 | if (!area) { | |
915 | area = ospf_area_new(ospf, area_id); | |
916 | listnode_add_sort(ospf->areas, area); | |
917 | ospf_check_abr_status(ospf); | |
918 | if (ospf->stub_router_admin_set | |
919 | == OSPF_STUB_ROUTER_ADMINISTRATIVE_SET) { | |
920 | SET_FLAG(area->stub_router_state, | |
921 | OSPF_AREA_ADMIN_STUB_ROUTED); | |
922 | } | |
923 | } | |
718e3744 | 924 | |
d62a17ae | 925 | return area; |
718e3744 | 926 | } |
927 | ||
d62a17ae | 928 | struct ospf_area *ospf_area_lookup_by_area_id(struct ospf *ospf, |
929 | struct in_addr area_id) | |
718e3744 | 930 | { |
d62a17ae | 931 | struct ospf_area *area; |
932 | struct listnode *node; | |
718e3744 | 933 | |
d62a17ae | 934 | for (ALL_LIST_ELEMENTS_RO(ospf->areas, node, area)) |
935 | if (IPV4_ADDR_SAME(&area->area_id, &area_id)) | |
936 | return area; | |
718e3744 | 937 | |
d62a17ae | 938 | return NULL; |
718e3744 | 939 | } |
940 | ||
d62a17ae | 941 | void ospf_area_add_if(struct ospf_area *area, struct ospf_interface *oi) |
718e3744 | 942 | { |
d62a17ae | 943 | listnode_add(area->oiflist, oi); |
718e3744 | 944 | } |
945 | ||
d62a17ae | 946 | void ospf_area_del_if(struct ospf_area *area, struct ospf_interface *oi) |
718e3744 | 947 | { |
d62a17ae | 948 | listnode_delete(area->oiflist, oi); |
718e3744 | 949 | } |
950 | ||
52c62ab8 | 951 | |
d62a17ae | 952 | static void add_ospf_interface(struct connected *co, struct ospf_area *area) |
953cde65 | 953 | { |
d62a17ae | 954 | struct ospf_interface *oi; |
953cde65 | 955 | |
d62a17ae | 956 | oi = ospf_if_new(area->ospf, co->ifp, co->address); |
957 | oi->connected = co; | |
953cde65 | 958 | |
d62a17ae | 959 | oi->area = area; |
953cde65 | 960 | |
d62a17ae | 961 | oi->params = ospf_lookup_if_params(co->ifp, oi->address->u.prefix4); |
962 | oi->output_cost = ospf_if_get_output_cost(oi); | |
953cde65 | 963 | |
d62a17ae | 964 | /* Relate ospf interface to ospf instance. */ |
965 | oi->ospf = area->ospf; | |
953cde65 | 966 | |
d62a17ae | 967 | /* update network type as interface flag */ |
968 | /* If network type is specified previously, | |
969 | skip network type setting. */ | |
970 | oi->type = IF_DEF_PARAMS(co->ifp)->type; | |
953cde65 | 971 | |
d62a17ae | 972 | /* Add pseudo neighbor. */ |
973 | ospf_nbr_self_reset(oi, oi->ospf->router_id); | |
953cde65 | 974 | |
d62a17ae | 975 | ospf_area_add_if(oi->area, oi); |
52c62ab8 | 976 | |
d62a17ae | 977 | /* |
978 | * if router_id is not configured, dont bring up | |
979 | * interfaces. | |
980 | * ospf_router_id_update() will call ospf_if_update | |
981 | * whenever r-id is configured instead. | |
982 | */ | |
983 | if ((area->ospf->router_id.s_addr != 0) && if_is_operative(co->ifp)) | |
984 | ospf_if_up(oi); | |
953cde65 JT |
985 | } |
986 | ||
987 | static void update_redistributed(struct ospf *ospf, int add_to_ospf) | |
988 | { | |
d62a17ae | 989 | struct route_node *rn; |
990 | struct external_info *ei; | |
991 | struct ospf_external *ext; | |
992 | ||
de1ac5fd CS |
993 | if (ospf_is_type_redistributed(ospf, ZEBRA_ROUTE_CONNECT, 0)) { |
994 | ext = ospf_external_lookup(ospf, ZEBRA_ROUTE_CONNECT, 0); | |
995 | if ((ext) && EXTERNAL_INFO(ext)) { | |
d62a17ae | 996 | for (rn = route_top(EXTERNAL_INFO(ext)); rn; |
997 | rn = route_next(rn)) { | |
de1ac5fd CS |
998 | ei = rn->info; |
999 | if (ei == NULL) | |
1000 | continue; | |
1001 | ||
1002 | if (add_to_ospf) { | |
996c9314 LB |
1003 | if (ospf_external_info_find_lsa(ospf, |
1004 | &ei->p)) | |
de1ac5fd CS |
1005 | if (!ospf_distribute_check_connected( |
1006 | ospf, ei)) | |
1007 | ospf_external_lsa_flush( | |
996c9314 | 1008 | ospf, ei->type, |
de1ac5fd CS |
1009 | &ei->p, |
1010 | ei->ifindex /*, ei->nexthop */); | |
1011 | } else { | |
1012 | if (!ospf_external_info_find_lsa( | |
1013 | ospf, &ei->p)) | |
1014 | if (ospf_distribute_check_connected( | |
1015 | ospf, ei)) | |
1016 | ospf_external_lsa_originate( | |
996c9314 | 1017 | ospf, ei); |
d62a17ae | 1018 | } |
1019 | } | |
1020 | } | |
de1ac5fd | 1021 | } |
953cde65 JT |
1022 | } |
1023 | ||
718e3744 | 1024 | /* Config network statement related functions. */ |
d62a17ae | 1025 | static struct ospf_network *ospf_network_new(struct in_addr area_id) |
718e3744 | 1026 | { |
d62a17ae | 1027 | struct ospf_network *new; |
1028 | new = XCALLOC(MTYPE_OSPF_NETWORK, sizeof(struct ospf_network)); | |
718e3744 | 1029 | |
d62a17ae | 1030 | new->area_id = area_id; |
1031 | new->area_id_fmt = OSPF_AREA_ID_FMT_DOTTEDQUAD; | |
1032 | ||
1033 | return new; | |
718e3744 | 1034 | } |
1035 | ||
d62a17ae | 1036 | static void ospf_network_free(struct ospf *ospf, struct ospf_network *network) |
718e3744 | 1037 | { |
d62a17ae | 1038 | ospf_area_check_free(ospf, network->area_id); |
1039 | ospf_schedule_abr_task(ospf); | |
1040 | XFREE(MTYPE_OSPF_NETWORK, network); | |
718e3744 | 1041 | } |
1042 | ||
d62a17ae | 1043 | int ospf_network_set(struct ospf *ospf, struct prefix_ipv4 *p, |
1044 | struct in_addr area_id, int df) | |
718e3744 | 1045 | { |
d62a17ae | 1046 | struct ospf_network *network; |
1047 | struct ospf_area *area; | |
1048 | struct route_node *rn; | |
718e3744 | 1049 | |
d62a17ae | 1050 | rn = route_node_get(ospf->networks, (struct prefix *)p); |
1051 | if (rn->info) { | |
2b0a905a | 1052 | network = rn->info; |
d62a17ae | 1053 | route_unlock_node(rn); |
2b0a905a DW |
1054 | |
1055 | if (IPV4_ADDR_SAME(&area_id, &network->area_id)) { | |
1056 | return 1; | |
1057 | } else { | |
1058 | /* There is already same network statement. */ | |
1059 | return 0; | |
1060 | } | |
d62a17ae | 1061 | } |
718e3744 | 1062 | |
d62a17ae | 1063 | rn->info = network = ospf_network_new(area_id); |
1064 | network->area_id_fmt = df; | |
1065 | area = ospf_area_get(ospf, area_id); | |
1066 | ospf_area_display_format_set(ospf, area, df); | |
718e3744 | 1067 | |
d62a17ae | 1068 | /* Run network config now. */ |
1069 | ospf_network_run((struct prefix *)p, area); | |
718e3744 | 1070 | |
d62a17ae | 1071 | /* Update connected redistribute. */ |
1072 | update_redistributed(ospf, 1); /* interfaces possibly added */ | |
718e3744 | 1073 | |
d62a17ae | 1074 | ospf_area_check_free(ospf, area_id); |
718e3744 | 1075 | |
d62a17ae | 1076 | return 1; |
718e3744 | 1077 | } |
1078 | ||
d62a17ae | 1079 | int ospf_network_unset(struct ospf *ospf, struct prefix_ipv4 *p, |
1080 | struct in_addr area_id) | |
718e3744 | 1081 | { |
d62a17ae | 1082 | struct route_node *rn; |
1083 | struct ospf_network *network; | |
1084 | struct listnode *node, *nnode; | |
1085 | struct ospf_interface *oi; | |
718e3744 | 1086 | |
d62a17ae | 1087 | rn = route_node_lookup(ospf->networks, (struct prefix *)p); |
1088 | if (rn == NULL) | |
1089 | return 0; | |
718e3744 | 1090 | |
d62a17ae | 1091 | network = rn->info; |
1092 | route_unlock_node(rn); | |
1093 | if (!IPV4_ADDR_SAME(&area_id, &network->area_id)) | |
1094 | return 0; | |
718e3744 | 1095 | |
d62a17ae | 1096 | ospf_network_free(ospf, rn->info); |
1097 | rn->info = NULL; | |
1098 | route_unlock_node(rn); /* initial reference */ | |
718e3744 | 1099 | |
30c0daa4 | 1100 | /* Find interfaces that are not configured already. */ |
d62a17ae | 1101 | for (ALL_LIST_ELEMENTS(ospf->oiflist, node, nnode, oi)) { |
30c0daa4 | 1102 | |
996c9314 LB |
1103 | if (oi->type == OSPF_IFTYPE_VIRTUALLINK) |
1104 | continue; | |
30c0daa4 | 1105 | |
996c9314 | 1106 | ospf_network_run_subnet(ospf, oi->connected, NULL, NULL); |
d62a17ae | 1107 | } |
953cde65 | 1108 | |
d62a17ae | 1109 | /* Update connected redistribute. */ |
1110 | update_redistributed(ospf, 0); /* interfaces possibly removed */ | |
1111 | ospf_area_check_free(ospf, area_id); | |
1112 | ||
1113 | return 1; | |
953cde65 JT |
1114 | } |
1115 | ||
52c62ab8 JAG |
1116 | /* Ensure there's an OSPF instance, as "ip ospf area" enabled OSPF means |
1117 | * there might not be any 'router ospf' config. | |
1118 | * | |
1119 | * Otherwise, doesn't do anything different to ospf_if_update for now | |
1120 | */ | |
b5a8894d | 1121 | void ospf_interface_area_set(struct ospf *ospf, struct interface *ifp) |
953cde65 | 1122 | { |
b5a8894d CS |
1123 | if (!ospf) |
1124 | return; | |
d62a17ae | 1125 | |
1126 | ospf_if_update(ospf, ifp); | |
1127 | /* if_update does a update_redistributed */ | |
1128 | ||
1129 | return; | |
953cde65 JT |
1130 | } |
1131 | ||
b5a8894d | 1132 | void ospf_interface_area_unset(struct ospf *ospf, struct interface *ifp) |
953cde65 | 1133 | { |
d62a17ae | 1134 | struct route_node *rn_oi; |
953cde65 | 1135 | |
d62a17ae | 1136 | if (!ospf) |
1137 | return; /* Ospf not ready yet */ | |
953cde65 | 1138 | |
d62a17ae | 1139 | /* Find interfaces that may need to be removed. */ |
1140 | for (rn_oi = route_top(IF_OIFS(ifp)); rn_oi; | |
1141 | rn_oi = route_next(rn_oi)) { | |
b5a8894d | 1142 | struct ospf_interface *oi = NULL; |
d62a17ae | 1143 | |
1144 | if ((oi = rn_oi->info) == NULL) | |
1145 | continue; | |
1146 | ||
1147 | if (oi->type == OSPF_IFTYPE_VIRTUALLINK) | |
1148 | continue; | |
1149 | ||
1150 | ospf_network_run_subnet(ospf, oi->connected, NULL, NULL); | |
1151 | } | |
953cde65 | 1152 | |
d62a17ae | 1153 | /* Update connected redistribute. */ |
1154 | update_redistributed(ospf, 0); /* interfaces possibly removed */ | |
718e3744 | 1155 | } |
1156 | ||
570f7598 | 1157 | /* Check whether interface matches given network |
1158 | * returns: 1, true. 0, false | |
1159 | */ | |
d62a17ae | 1160 | static int ospf_network_match_iface(const struct connected *co, |
1161 | const struct prefix *net) | |
570f7598 | 1162 | { |
d62a17ae | 1163 | /* new approach: more elegant and conceptually clean */ |
1164 | return prefix_match_network_statement(net, CONNECTED_PREFIX(co)); | |
570f7598 | 1165 | } |
1166 | ||
d62a17ae | 1167 | static void ospf_update_interface_area(struct connected *co, |
1168 | struct ospf_area *area) | |
52c62ab8 | 1169 | { |
d62a17ae | 1170 | struct ospf_interface *oi = ospf_if_table_lookup(co->ifp, co->address); |
1171 | ||
1172 | /* nothing to be done case */ | |
1173 | if (oi && oi->area == area) { | |
1174 | return; | |
1175 | } | |
1176 | ||
1177 | if (oi) | |
1178 | ospf_if_free(oi); | |
1179 | ||
1180 | add_ospf_interface(co, area); | |
52c62ab8 JAG |
1181 | } |
1182 | ||
1183 | /* Run OSPF for the given subnet, taking into account the following | |
1184 | * possible sources of area configuration, in the given order of preference: | |
1185 | * | |
1186 | * - Whether there is interface+address specific area configuration | |
1187 | * - Whether there is a default area for the interface | |
1188 | * - Whether there is an area given as a parameter. | |
1189 | * - If no specific network prefix/area is supplied, whether there's | |
1190 | * a matching network configured. | |
1191 | */ | |
d62a17ae | 1192 | static void ospf_network_run_subnet(struct ospf *ospf, struct connected *co, |
1193 | struct prefix *p, | |
1194 | struct ospf_area *given_area) | |
1195 | { | |
1196 | struct ospf_interface *oi; | |
1197 | struct ospf_if_params *params; | |
1198 | struct ospf_area *area = NULL; | |
1199 | struct route_node *rn; | |
1200 | int configed = 0; | |
1201 | ||
1202 | if (CHECK_FLAG(co->flags, ZEBRA_IFA_SECONDARY)) | |
1203 | return; | |
1204 | ||
1205 | if (co->address->family != AF_INET) | |
1206 | return; | |
1207 | ||
1208 | /* Try determine the appropriate area for this interface + address | |
1209 | * Start by checking interface config | |
1210 | */ | |
1211 | params = ospf_lookup_if_params(co->ifp, co->address->u.prefix4); | |
1212 | if (params && OSPF_IF_PARAM_CONFIGURED(params, if_area)) | |
1213 | area = ospf_area_get(ospf, params->if_area); | |
1214 | else { | |
1215 | params = IF_DEF_PARAMS(co->ifp); | |
1216 | if (OSPF_IF_PARAM_CONFIGURED(params, if_area)) | |
1217 | area = ospf_area_get(ospf, params->if_area); | |
1218 | } | |
52c62ab8 | 1219 | |
d62a17ae | 1220 | /* If we've found an interface and/or addr specific area, then we're |
1221 | * done | |
1222 | */ | |
1223 | if (area) { | |
1224 | ospf_update_interface_area(co, area); | |
1225 | return; | |
1226 | } | |
718e3744 | 1227 | |
d62a17ae | 1228 | /* Otherwise, only remaining possibility is a matching network statement |
1229 | */ | |
1230 | if (p) { | |
1231 | assert(given_area != NULL); | |
1232 | ||
1233 | /* Which either was supplied as a parameter.. (e.g. cause a new | |
1234 | * network/area was just added).. | |
1235 | */ | |
1236 | if (p->family == co->address->family | |
1237 | && ospf_network_match_iface(co, p)) | |
1238 | ospf_update_interface_area(co, given_area); | |
1239 | ||
1240 | return; | |
1241 | } | |
1242 | ||
1243 | /* Else we have to search the existing network/area config to see | |
1244 | * if any match.. | |
1245 | */ | |
1246 | for (rn = route_top(ospf->networks); rn; rn = route_next(rn)) | |
1247 | if (rn->info != NULL && ospf_network_match_iface(co, &rn->p)) { | |
1248 | struct ospf_network *network = | |
1249 | (struct ospf_network *)rn->info; | |
1250 | area = ospf_area_get(ospf, network->area_id); | |
1251 | ospf_update_interface_area(co, area); | |
1252 | configed = 1; | |
1253 | } | |
1254 | ||
1255 | /* If the subnet isn't in any area, deconfigure */ | |
1256 | if (!configed && (oi = ospf_if_table_lookup(co->ifp, co->address))) | |
1257 | ospf_if_free(oi); | |
718e3744 | 1258 | } |
1259 | ||
d62a17ae | 1260 | static void ospf_network_run_interface(struct ospf *ospf, struct interface *ifp, |
1261 | struct prefix *p, | |
1262 | struct ospf_area *given_area) | |
718e3744 | 1263 | { |
d62a17ae | 1264 | struct listnode *cnode; |
1265 | struct connected *co; | |
1266 | ||
1267 | if (memcmp(ifp->name, "VLINK", 5) == 0) | |
1268 | return; | |
718e3744 | 1269 | |
d62a17ae | 1270 | /* Network prefix without area is nonsensical */ |
1271 | if (p) | |
1272 | assert(given_area != NULL); | |
1273 | ||
1274 | /* if interface prefix is match specified prefix, | |
1275 | then create socket and join multicast group. */ | |
1276 | for (ALL_LIST_ELEMENTS_RO(ifp->connected, cnode, co)) | |
1277 | ospf_network_run_subnet(ospf, co, p, given_area); | |
718e3744 | 1278 | } |
1279 | ||
d62a17ae | 1280 | static void ospf_network_run(struct prefix *p, struct ospf_area *area) |
718e3744 | 1281 | { |
f4e14fdb | 1282 | struct vrf *vrf = vrf_lookup_by_id(area->ospf->vrf_id); |
d62a17ae | 1283 | struct interface *ifp; |
d62a17ae | 1284 | |
1285 | /* Schedule Router ID Update. */ | |
1286 | if (area->ospf->router_id.s_addr == 0) | |
1287 | ospf_router_id_update(area->ospf); | |
718e3744 | 1288 | |
d62a17ae | 1289 | /* Get target interface. */ |
451fda4f | 1290 | FOR_ALL_INTERFACES (vrf, ifp) |
d62a17ae | 1291 | ospf_network_run_interface(area->ospf, ifp, p, area); |
718e3744 | 1292 | } |
1293 | ||
d62a17ae | 1294 | void ospf_ls_upd_queue_empty(struct ospf_interface *oi) |
1295 | { | |
1296 | struct route_node *rn; | |
1297 | struct listnode *node, *nnode; | |
1298 | struct list *lst; | |
1299 | struct ospf_lsa *lsa; | |
1300 | ||
1301 | /* empty ls update queue */ | |
1302 | for (rn = route_top(oi->ls_upd_queue); rn; rn = route_next(rn)) | |
1303 | if ((lst = (struct list *)rn->info)) { | |
1304 | for (ALL_LIST_ELEMENTS(lst, node, nnode, lsa)) | |
1305 | ospf_lsa_unlock(&lsa); /* oi->ls_upd_queue */ | |
affe9e99 | 1306 | list_delete_and_null(&lst); |
d62a17ae | 1307 | rn->info = NULL; |
1308 | } | |
1309 | ||
1310 | /* remove update event */ | |
1311 | if (oi->t_ls_upd_event) { | |
1312 | thread_cancel(oi->t_ls_upd_event); | |
1313 | oi->t_ls_upd_event = NULL; | |
1314 | } | |
1315 | } | |
6b0655a2 | 1316 | |
d62a17ae | 1317 | void ospf_if_update(struct ospf *ospf, struct interface *ifp) |
718e3744 | 1318 | { |
43b8d1d8 | 1319 | |
d62a17ae | 1320 | if (!ospf) |
43b8d1d8 | 1321 | return; |
b5a8894d CS |
1322 | |
1323 | if (IS_DEBUG_OSPF_EVENT) | |
996c9314 LB |
1324 | zlog_debug( |
1325 | "%s: interface %s ifp->vrf_id %u ospf vrf %s vrf_id %u router_id %s", | |
1326 | __PRETTY_FUNCTION__, ifp->name, ifp->vrf_id, | |
1327 | ospf_vrf_id_to_name(ospf->vrf_id), ospf->vrf_id, | |
1328 | inet_ntoa(ospf->router_id)); | |
d62a17ae | 1329 | |
1330 | /* OSPF must be ready. */ | |
1331 | if (!ospf_is_ready(ospf)) | |
1332 | return; | |
1333 | ||
1334 | ospf_network_run_interface(ospf, ifp, NULL, NULL); | |
1335 | ||
1336 | /* Update connected redistribute. */ | |
1337 | update_redistributed(ospf, 1); | |
1338 | } | |
718e3744 | 1339 | |
d62a17ae | 1340 | void ospf_remove_vls_through_area(struct ospf *ospf, struct ospf_area *area) |
718e3744 | 1341 | { |
d62a17ae | 1342 | struct listnode *node, *nnode; |
1343 | struct ospf_vl_data *vl_data; | |
718e3744 | 1344 | |
d62a17ae | 1345 | for (ALL_LIST_ELEMENTS(ospf->vlinks, node, nnode, vl_data)) |
1346 | if (IPV4_ADDR_SAME(&vl_data->vl_area_id, &area->area_id)) | |
1347 | ospf_vl_delete(ospf, vl_data); | |
1348 | } | |
718e3744 | 1349 | |
718e3744 | 1350 | |
d62a17ae | 1351 | static const struct message ospf_area_type_msg[] = { |
1352 | {OSPF_AREA_DEFAULT, "Default"}, | |
1353 | {OSPF_AREA_STUB, "Stub"}, | |
1354 | {OSPF_AREA_NSSA, "NSSA"}, | |
1355 | {0}}; | |
718e3744 | 1356 | |
d62a17ae | 1357 | static void ospf_area_type_set(struct ospf_area *area, int type) |
1358 | { | |
1359 | struct listnode *node; | |
1360 | struct ospf_interface *oi; | |
1361 | ||
1362 | if (area->external_routing == type) { | |
1363 | if (IS_DEBUG_OSPF_EVENT) | |
1364 | zlog_debug("Area[%s]: Types are the same, ignored.", | |
1365 | inet_ntoa(area->area_id)); | |
1366 | return; | |
1367 | } | |
718e3744 | 1368 | |
d62a17ae | 1369 | area->external_routing = type; |
1370 | ||
1371 | if (IS_DEBUG_OSPF_EVENT) | |
1372 | zlog_debug("Area[%s]: Configured as %s", | |
1373 | inet_ntoa(area->area_id), | |
1374 | lookup_msg(ospf_area_type_msg, type, NULL)); | |
1375 | ||
1376 | switch (area->external_routing) { | |
1377 | case OSPF_AREA_DEFAULT: | |
1378 | for (ALL_LIST_ELEMENTS_RO(area->oiflist, node, oi)) | |
1379 | if (oi->nbr_self != NULL) { | |
1380 | UNSET_FLAG(oi->nbr_self->options, | |
1381 | OSPF_OPTION_NP); | |
1382 | SET_FLAG(oi->nbr_self->options, OSPF_OPTION_E); | |
1383 | } | |
1384 | break; | |
1385 | case OSPF_AREA_STUB: | |
1386 | for (ALL_LIST_ELEMENTS_RO(area->oiflist, node, oi)) | |
1387 | if (oi->nbr_self != NULL) { | |
1388 | if (IS_DEBUG_OSPF_EVENT) | |
1389 | zlog_debug( | |
1390 | "setting options on %s accordingly", | |
1391 | IF_NAME(oi)); | |
1392 | UNSET_FLAG(oi->nbr_self->options, | |
1393 | OSPF_OPTION_NP); | |
1394 | UNSET_FLAG(oi->nbr_self->options, | |
1395 | OSPF_OPTION_E); | |
1396 | if (IS_DEBUG_OSPF_EVENT) | |
1397 | zlog_debug("options set on %s: %x", | |
1398 | IF_NAME(oi), OPTIONS(oi)); | |
1399 | } | |
1400 | break; | |
1401 | case OSPF_AREA_NSSA: | |
1402 | for (ALL_LIST_ELEMENTS_RO(area->oiflist, node, oi)) | |
1403 | if (oi->nbr_self != NULL) { | |
1404 | zlog_debug( | |
1405 | "setting nssa options on %s accordingly", | |
1406 | IF_NAME(oi)); | |
1407 | UNSET_FLAG(oi->nbr_self->options, | |
1408 | OSPF_OPTION_E); | |
1409 | SET_FLAG(oi->nbr_self->options, OSPF_OPTION_NP); | |
1410 | zlog_debug("options set on %s: %x", IF_NAME(oi), | |
1411 | OPTIONS(oi)); | |
1412 | } | |
1413 | break; | |
1414 | default: | |
1415 | break; | |
1416 | } | |
1417 | ||
1418 | ospf_router_lsa_update_area(area); | |
1419 | ospf_schedule_abr_task(area->ospf); | |
718e3744 | 1420 | } |
1421 | ||
d62a17ae | 1422 | int ospf_area_shortcut_set(struct ospf *ospf, struct ospf_area *area, int mode) |
718e3744 | 1423 | { |
d62a17ae | 1424 | if (area->shortcut_configured == mode) |
1425 | return 0; | |
718e3744 | 1426 | |
d62a17ae | 1427 | area->shortcut_configured = mode; |
1428 | ospf_router_lsa_update_area(area); | |
1429 | ospf_schedule_abr_task(ospf); | |
718e3744 | 1430 | |
d62a17ae | 1431 | ospf_area_check_free(ospf, area->area_id); |
718e3744 | 1432 | |
d62a17ae | 1433 | return 1; |
718e3744 | 1434 | } |
1435 | ||
d62a17ae | 1436 | int ospf_area_shortcut_unset(struct ospf *ospf, struct ospf_area *area) |
718e3744 | 1437 | { |
d62a17ae | 1438 | area->shortcut_configured = OSPF_SHORTCUT_DEFAULT; |
1439 | ospf_router_lsa_update_area(area); | |
1440 | ospf_area_check_free(ospf, area->area_id); | |
1441 | ospf_schedule_abr_task(ospf); | |
718e3744 | 1442 | |
d62a17ae | 1443 | return 1; |
718e3744 | 1444 | } |
1445 | ||
d62a17ae | 1446 | static int ospf_area_vlink_count(struct ospf *ospf, struct ospf_area *area) |
718e3744 | 1447 | { |
d62a17ae | 1448 | struct ospf_vl_data *vl; |
1449 | struct listnode *node; | |
1450 | int count = 0; | |
718e3744 | 1451 | |
d62a17ae | 1452 | for (ALL_LIST_ELEMENTS_RO(ospf->vlinks, node, vl)) |
1453 | if (IPV4_ADDR_SAME(&vl->vl_area_id, &area->area_id)) | |
1454 | count++; | |
718e3744 | 1455 | |
d62a17ae | 1456 | return count; |
718e3744 | 1457 | } |
1458 | ||
d62a17ae | 1459 | int ospf_area_display_format_set(struct ospf *ospf, struct ospf_area *area, |
1460 | int df) | |
86573dcb | 1461 | { |
d62a17ae | 1462 | area->area_id_fmt = df; |
86573dcb | 1463 | |
d62a17ae | 1464 | return 1; |
86573dcb QY |
1465 | } |
1466 | ||
d62a17ae | 1467 | int ospf_area_stub_set(struct ospf *ospf, struct in_addr area_id) |
718e3744 | 1468 | { |
d62a17ae | 1469 | struct ospf_area *area; |
718e3744 | 1470 | |
d62a17ae | 1471 | area = ospf_area_get(ospf, area_id); |
1472 | if (ospf_area_vlink_count(ospf, area)) | |
1473 | return 0; | |
718e3744 | 1474 | |
d62a17ae | 1475 | if (area->external_routing != OSPF_AREA_STUB) |
1476 | ospf_area_type_set(area, OSPF_AREA_STUB); | |
718e3744 | 1477 | |
d62a17ae | 1478 | return 1; |
718e3744 | 1479 | } |
1480 | ||
d62a17ae | 1481 | int ospf_area_stub_unset(struct ospf *ospf, struct in_addr area_id) |
718e3744 | 1482 | { |
d62a17ae | 1483 | struct ospf_area *area; |
718e3744 | 1484 | |
d62a17ae | 1485 | area = ospf_area_lookup_by_area_id(ospf, area_id); |
1486 | if (area == NULL) | |
1487 | return 1; | |
718e3744 | 1488 | |
d62a17ae | 1489 | if (area->external_routing == OSPF_AREA_STUB) |
1490 | ospf_area_type_set(area, OSPF_AREA_DEFAULT); | |
718e3744 | 1491 | |
d62a17ae | 1492 | ospf_area_check_free(ospf, area_id); |
718e3744 | 1493 | |
d62a17ae | 1494 | return 1; |
718e3744 | 1495 | } |
1496 | ||
d62a17ae | 1497 | int ospf_area_no_summary_set(struct ospf *ospf, struct in_addr area_id) |
718e3744 | 1498 | { |
d62a17ae | 1499 | struct ospf_area *area; |
718e3744 | 1500 | |
d62a17ae | 1501 | area = ospf_area_get(ospf, area_id); |
1502 | area->no_summary = 1; | |
718e3744 | 1503 | |
d62a17ae | 1504 | return 1; |
718e3744 | 1505 | } |
1506 | ||
d62a17ae | 1507 | int ospf_area_no_summary_unset(struct ospf *ospf, struct in_addr area_id) |
718e3744 | 1508 | { |
d62a17ae | 1509 | struct ospf_area *area; |
718e3744 | 1510 | |
d62a17ae | 1511 | area = ospf_area_lookup_by_area_id(ospf, area_id); |
1512 | if (area == NULL) | |
1513 | return 0; | |
718e3744 | 1514 | |
d62a17ae | 1515 | area->no_summary = 0; |
1516 | ospf_area_check_free(ospf, area_id); | |
718e3744 | 1517 | |
d62a17ae | 1518 | return 1; |
718e3744 | 1519 | } |
1520 | ||
7ef56a73 | 1521 | int ospf_area_nssa_no_summary_set(struct ospf *ospf, struct in_addr area_id) |
718e3744 | 1522 | { |
d62a17ae | 1523 | struct ospf_area *area; |
718e3744 | 1524 | |
d62a17ae | 1525 | area = ospf_area_get(ospf, area_id); |
1526 | if (ospf_area_vlink_count(ospf, area)) | |
1527 | return 0; | |
718e3744 | 1528 | |
d62a17ae | 1529 | if (area->external_routing != OSPF_AREA_NSSA) { |
1530 | ospf_area_type_set(area, OSPF_AREA_NSSA); | |
1531 | ospf->anyNSSA++; | |
7ef56a73 | 1532 | area->NSSATranslatorRole = OSPF_NSSA_ROLE_CANDIDATE; |
d62a17ae | 1533 | } |
718e3744 | 1534 | |
7ef56a73 | 1535 | ospf_area_no_summary_set(ospf, area_id); |
084c7844 | 1536 | |
d62a17ae | 1537 | return 1; |
718e3744 | 1538 | } |
1539 | ||
7ef56a73 CS |
1540 | int ospf_area_nssa_set(struct ospf *ospf, struct in_addr area_id) |
1541 | { | |
1542 | struct ospf_area *area; | |
1543 | ||
1544 | area = ospf_area_get(ospf, area_id); | |
1545 | if (ospf_area_vlink_count(ospf, area)) | |
1546 | return 0; | |
1547 | ||
1548 | if (area->external_routing != OSPF_AREA_NSSA) { | |
1549 | ospf_area_type_set(area, OSPF_AREA_NSSA); | |
1550 | ospf->anyNSSA++; | |
1551 | ||
1552 | /* set NSSA area defaults */ | |
1553 | area->no_summary = 0; | |
1554 | area->NSSATranslatorRole = OSPF_NSSA_ROLE_CANDIDATE; | |
1555 | area->NSSATranslatorState = OSPF_NSSA_TRANSLATE_DISABLED; | |
1556 | area->NSSATranslatorStabilityInterval = | |
1557 | OSPF_NSSA_TRANS_STABLE_DEFAULT; | |
1558 | } | |
1559 | return 1; | |
1560 | } | |
1561 | ||
1562 | int ospf_area_nssa_unset(struct ospf *ospf, struct in_addr area_id, int argc) | |
718e3744 | 1563 | { |
d62a17ae | 1564 | struct ospf_area *area; |
718e3744 | 1565 | |
d62a17ae | 1566 | area = ospf_area_lookup_by_area_id(ospf, area_id); |
1567 | if (area == NULL) | |
1568 | return 0; | |
718e3744 | 1569 | |
7ef56a73 CS |
1570 | /* argc < 5 -> 'no area x nssa' */ |
1571 | if (argc < 5 && area->external_routing == OSPF_AREA_NSSA) { | |
d62a17ae | 1572 | ospf->anyNSSA--; |
7ef56a73 CS |
1573 | /* set NSSA area defaults */ |
1574 | area->no_summary = 0; | |
1575 | area->NSSATranslatorRole = OSPF_NSSA_ROLE_CANDIDATE; | |
1576 | area->NSSATranslatorState = OSPF_NSSA_TRANSLATE_DISABLED; | |
1577 | area->NSSATranslatorStabilityInterval = | |
1578 | OSPF_NSSA_TRANS_STABLE_DEFAULT; | |
d62a17ae | 1579 | ospf_area_type_set(area, OSPF_AREA_DEFAULT); |
7ef56a73 CS |
1580 | } else { |
1581 | area->NSSATranslatorRole = OSPF_NSSA_ROLE_CANDIDATE; | |
d62a17ae | 1582 | } |
718e3744 | 1583 | |
d62a17ae | 1584 | ospf_area_check_free(ospf, area_id); |
718e3744 | 1585 | |
d62a17ae | 1586 | return 1; |
718e3744 | 1587 | } |
1588 | ||
d62a17ae | 1589 | int ospf_area_nssa_translator_role_set(struct ospf *ospf, |
1590 | struct in_addr area_id, int role) | |
718e3744 | 1591 | { |
d62a17ae | 1592 | struct ospf_area *area; |
718e3744 | 1593 | |
d62a17ae | 1594 | area = ospf_area_lookup_by_area_id(ospf, area_id); |
1595 | if (area == NULL) | |
1596 | return 0; | |
718e3744 | 1597 | |
d62a17ae | 1598 | area->NSSATranslatorRole = role; |
718e3744 | 1599 | |
d62a17ae | 1600 | return 1; |
718e3744 | 1601 | } |
1602 | ||
075e12f5 | 1603 | #if 0 |
4dadc291 | 1604 | /* XXX: unused? Leave for symmetry? */ |
1605 | static int | |
718e3744 | 1606 | ospf_area_nssa_translator_role_unset (struct ospf *ospf, |
1607 | struct in_addr area_id) | |
1608 | { | |
1609 | struct ospf_area *area; | |
1610 | ||
68980084 | 1611 | area = ospf_area_lookup_by_area_id (ospf, area_id); |
718e3744 | 1612 | if (area == NULL) |
1613 | return 0; | |
1614 | ||
084c7844 | 1615 | area->NSSATranslatorRole = OSPF_NSSA_ROLE_CANDIDATE; |
718e3744 | 1616 | |
68980084 | 1617 | ospf_area_check_free (ospf, area_id); |
718e3744 | 1618 | |
1619 | return 1; | |
1620 | } | |
075e12f5 | 1621 | #endif |
718e3744 | 1622 | |
d62a17ae | 1623 | int ospf_area_export_list_set(struct ospf *ospf, struct ospf_area *area, |
1624 | const char *list_name) | |
718e3744 | 1625 | { |
d62a17ae | 1626 | struct access_list *list; |
1627 | list = access_list_lookup(AFI_IP, list_name); | |
718e3744 | 1628 | |
d62a17ae | 1629 | EXPORT_LIST(area) = list; |
718e3744 | 1630 | |
d62a17ae | 1631 | if (EXPORT_NAME(area)) |
1632 | free(EXPORT_NAME(area)); | |
718e3744 | 1633 | |
d62a17ae | 1634 | EXPORT_NAME(area) = strdup(list_name); |
1635 | ospf_schedule_abr_task(ospf); | |
718e3744 | 1636 | |
d62a17ae | 1637 | return 1; |
718e3744 | 1638 | } |
1639 | ||
d62a17ae | 1640 | int ospf_area_export_list_unset(struct ospf *ospf, struct ospf_area *area) |
718e3744 | 1641 | { |
1642 | ||
d62a17ae | 1643 | EXPORT_LIST(area) = 0; |
718e3744 | 1644 | |
d62a17ae | 1645 | if (EXPORT_NAME(area)) |
1646 | free(EXPORT_NAME(area)); | |
718e3744 | 1647 | |
d62a17ae | 1648 | EXPORT_NAME(area) = NULL; |
718e3744 | 1649 | |
d62a17ae | 1650 | ospf_area_check_free(ospf, area->area_id); |
718e3744 | 1651 | |
d62a17ae | 1652 | ospf_schedule_abr_task(ospf); |
1653 | ||
1654 | return 1; | |
718e3744 | 1655 | } |
1656 | ||
d62a17ae | 1657 | int ospf_area_import_list_set(struct ospf *ospf, struct ospf_area *area, |
1658 | const char *name) | |
718e3744 | 1659 | { |
d62a17ae | 1660 | struct access_list *list; |
1661 | list = access_list_lookup(AFI_IP, name); | |
718e3744 | 1662 | |
d62a17ae | 1663 | IMPORT_LIST(area) = list; |
718e3744 | 1664 | |
d62a17ae | 1665 | if (IMPORT_NAME(area)) |
1666 | free(IMPORT_NAME(area)); | |
718e3744 | 1667 | |
d62a17ae | 1668 | IMPORT_NAME(area) = strdup(name); |
1669 | ospf_schedule_abr_task(ospf); | |
718e3744 | 1670 | |
d62a17ae | 1671 | return 1; |
718e3744 | 1672 | } |
1673 | ||
d62a17ae | 1674 | int ospf_area_import_list_unset(struct ospf *ospf, struct ospf_area *area) |
718e3744 | 1675 | { |
d62a17ae | 1676 | IMPORT_LIST(area) = 0; |
718e3744 | 1677 | |
d62a17ae | 1678 | if (IMPORT_NAME(area)) |
1679 | free(IMPORT_NAME(area)); | |
718e3744 | 1680 | |
d62a17ae | 1681 | IMPORT_NAME(area) = NULL; |
1682 | ospf_area_check_free(ospf, area->area_id); | |
718e3744 | 1683 | |
d62a17ae | 1684 | ospf_schedule_abr_task(ospf); |
718e3744 | 1685 | |
d62a17ae | 1686 | return 1; |
718e3744 | 1687 | } |
1688 | ||
d62a17ae | 1689 | int ospf_timers_refresh_set(struct ospf *ospf, int interval) |
718e3744 | 1690 | { |
d62a17ae | 1691 | int time_left; |
718e3744 | 1692 | |
d62a17ae | 1693 | if (ospf->lsa_refresh_interval == interval) |
1694 | return 1; | |
718e3744 | 1695 | |
d62a17ae | 1696 | time_left = ospf->lsa_refresh_interval |
1697 | - (monotime(NULL) - ospf->lsa_refresher_started); | |
718e3744 | 1698 | |
d62a17ae | 1699 | if (time_left > interval) { |
1700 | OSPF_TIMER_OFF(ospf->t_lsa_refresher); | |
1701 | thread_add_timer(master, ospf_lsa_refresh_walker, ospf, | |
1702 | interval, &ospf->t_lsa_refresher); | |
1703 | } | |
1704 | ospf->lsa_refresh_interval = interval; | |
1705 | ||
1706 | return 1; | |
718e3744 | 1707 | } |
1708 | ||
d62a17ae | 1709 | int ospf_timers_refresh_unset(struct ospf *ospf) |
718e3744 | 1710 | { |
d62a17ae | 1711 | int time_left; |
718e3744 | 1712 | |
d62a17ae | 1713 | time_left = ospf->lsa_refresh_interval |
1714 | - (monotime(NULL) - ospf->lsa_refresher_started); | |
718e3744 | 1715 | |
d62a17ae | 1716 | if (time_left > OSPF_LSA_REFRESH_INTERVAL_DEFAULT) { |
1717 | OSPF_TIMER_OFF(ospf->t_lsa_refresher); | |
1718 | ospf->t_lsa_refresher = NULL; | |
1719 | thread_add_timer(master, ospf_lsa_refresh_walker, ospf, | |
1720 | OSPF_LSA_REFRESH_INTERVAL_DEFAULT, | |
1721 | &ospf->t_lsa_refresher); | |
1722 | } | |
718e3744 | 1723 | |
d62a17ae | 1724 | ospf->lsa_refresh_interval = OSPF_LSA_REFRESH_INTERVAL_DEFAULT; |
718e3744 | 1725 | |
d62a17ae | 1726 | return 1; |
718e3744 | 1727 | } |
1728 | ||
6b0655a2 | 1729 | |
d62a17ae | 1730 | static struct ospf_nbr_nbma *ospf_nbr_nbma_new(void) |
718e3744 | 1731 | { |
d62a17ae | 1732 | struct ospf_nbr_nbma *nbr_nbma; |
718e3744 | 1733 | |
d62a17ae | 1734 | nbr_nbma = XCALLOC(MTYPE_OSPF_NEIGHBOR_STATIC, |
1735 | sizeof(struct ospf_nbr_nbma)); | |
718e3744 | 1736 | |
d62a17ae | 1737 | nbr_nbma->priority = OSPF_NEIGHBOR_PRIORITY_DEFAULT; |
1738 | nbr_nbma->v_poll = OSPF_POLL_INTERVAL_DEFAULT; | |
718e3744 | 1739 | |
d62a17ae | 1740 | return nbr_nbma; |
718e3744 | 1741 | } |
1742 | ||
d62a17ae | 1743 | static void ospf_nbr_nbma_free(struct ospf_nbr_nbma *nbr_nbma) |
718e3744 | 1744 | { |
d62a17ae | 1745 | XFREE(MTYPE_OSPF_NEIGHBOR_STATIC, nbr_nbma); |
718e3744 | 1746 | } |
1747 | ||
d62a17ae | 1748 | static void ospf_nbr_nbma_delete(struct ospf *ospf, |
1749 | struct ospf_nbr_nbma *nbr_nbma) | |
718e3744 | 1750 | { |
d62a17ae | 1751 | struct route_node *rn; |
1752 | struct prefix_ipv4 p; | |
718e3744 | 1753 | |
d62a17ae | 1754 | p.family = AF_INET; |
1755 | p.prefix = nbr_nbma->addr; | |
1756 | p.prefixlen = IPV4_MAX_BITLEN; | |
718e3744 | 1757 | |
d62a17ae | 1758 | rn = route_node_lookup(ospf->nbr_nbma, (struct prefix *)&p); |
1759 | if (rn) { | |
1760 | ospf_nbr_nbma_free(rn->info); | |
1761 | rn->info = NULL; | |
1762 | route_unlock_node(rn); | |
1763 | route_unlock_node(rn); | |
1764 | } | |
718e3744 | 1765 | } |
1766 | ||
d62a17ae | 1767 | static void ospf_nbr_nbma_down(struct ospf_nbr_nbma *nbr_nbma) |
718e3744 | 1768 | { |
d62a17ae | 1769 | OSPF_TIMER_OFF(nbr_nbma->t_poll); |
718e3744 | 1770 | |
d62a17ae | 1771 | if (nbr_nbma->nbr) { |
1772 | nbr_nbma->nbr->nbr_nbma = NULL; | |
1773 | OSPF_NSM_EVENT_EXECUTE(nbr_nbma->nbr, NSM_KillNbr); | |
1774 | } | |
718e3744 | 1775 | |
d62a17ae | 1776 | if (nbr_nbma->oi) |
1777 | listnode_delete(nbr_nbma->oi->nbr_nbma, nbr_nbma); | |
718e3744 | 1778 | } |
1779 | ||
d62a17ae | 1780 | static void ospf_nbr_nbma_add(struct ospf_nbr_nbma *nbr_nbma, |
1781 | struct ospf_interface *oi) | |
718e3744 | 1782 | { |
d62a17ae | 1783 | struct ospf_neighbor *nbr; |
1784 | struct route_node *rn; | |
1785 | struct prefix p; | |
718e3744 | 1786 | |
d62a17ae | 1787 | if (oi->type != OSPF_IFTYPE_NBMA) |
1788 | return; | |
718e3744 | 1789 | |
d62a17ae | 1790 | if (nbr_nbma->nbr != NULL) |
1791 | return; | |
718e3744 | 1792 | |
d62a17ae | 1793 | if (IPV4_ADDR_SAME(&oi->nbr_self->address.u.prefix4, &nbr_nbma->addr)) |
1794 | return; | |
718e3744 | 1795 | |
d62a17ae | 1796 | nbr_nbma->oi = oi; |
1797 | listnode_add(oi->nbr_nbma, nbr_nbma); | |
718e3744 | 1798 | |
d62a17ae | 1799 | /* Get neighbor information from table. */ |
1800 | p.family = AF_INET; | |
1801 | p.prefixlen = IPV4_MAX_BITLEN; | |
1802 | p.u.prefix4 = nbr_nbma->addr; | |
718e3744 | 1803 | |
d62a17ae | 1804 | rn = route_node_get(oi->nbrs, (struct prefix *)&p); |
1805 | if (rn->info) { | |
1806 | nbr = rn->info; | |
1807 | nbr->nbr_nbma = nbr_nbma; | |
1808 | nbr_nbma->nbr = nbr; | |
718e3744 | 1809 | |
d62a17ae | 1810 | route_unlock_node(rn); |
1811 | } else { | |
1812 | nbr = rn->info = ospf_nbr_new(oi); | |
1813 | nbr->state = NSM_Down; | |
1814 | nbr->src = nbr_nbma->addr; | |
1815 | nbr->nbr_nbma = nbr_nbma; | |
1816 | nbr->priority = nbr_nbma->priority; | |
1817 | nbr->address = p; | |
718e3744 | 1818 | |
d62a17ae | 1819 | nbr_nbma->nbr = nbr; |
1820 | ||
1821 | OSPF_NSM_EVENT_EXECUTE(nbr, NSM_Start); | |
1822 | } | |
718e3744 | 1823 | } |
1824 | ||
d62a17ae | 1825 | void ospf_nbr_nbma_if_update(struct ospf *ospf, struct ospf_interface *oi) |
718e3744 | 1826 | { |
d62a17ae | 1827 | struct ospf_nbr_nbma *nbr_nbma; |
1828 | struct route_node *rn; | |
1829 | struct prefix_ipv4 p; | |
718e3744 | 1830 | |
d62a17ae | 1831 | if (oi->type != OSPF_IFTYPE_NBMA) |
1832 | return; | |
718e3744 | 1833 | |
d62a17ae | 1834 | for (rn = route_top(ospf->nbr_nbma); rn; rn = route_next(rn)) |
1835 | if ((nbr_nbma = rn->info)) | |
1836 | if (nbr_nbma->oi == NULL && nbr_nbma->nbr == NULL) { | |
1837 | p.family = AF_INET; | |
1838 | p.prefix = nbr_nbma->addr; | |
1839 | p.prefixlen = IPV4_MAX_BITLEN; | |
718e3744 | 1840 | |
d62a17ae | 1841 | if (prefix_match(oi->address, |
1842 | (struct prefix *)&p)) | |
1843 | ospf_nbr_nbma_add(nbr_nbma, oi); | |
1844 | } | |
718e3744 | 1845 | } |
1846 | ||
d62a17ae | 1847 | struct ospf_nbr_nbma *ospf_nbr_nbma_lookup(struct ospf *ospf, |
1848 | struct in_addr nbr_addr) | |
718e3744 | 1849 | { |
d62a17ae | 1850 | struct route_node *rn; |
1851 | struct prefix_ipv4 p; | |
718e3744 | 1852 | |
d62a17ae | 1853 | p.family = AF_INET; |
1854 | p.prefix = nbr_addr; | |
1855 | p.prefixlen = IPV4_MAX_BITLEN; | |
718e3744 | 1856 | |
d62a17ae | 1857 | rn = route_node_lookup(ospf->nbr_nbma, (struct prefix *)&p); |
1858 | if (rn) { | |
1859 | route_unlock_node(rn); | |
1860 | return rn->info; | |
1861 | } | |
1862 | return NULL; | |
718e3744 | 1863 | } |
1864 | ||
d62a17ae | 1865 | struct ospf_nbr_nbma *ospf_nbr_nbma_lookup_next(struct ospf *ospf, |
1866 | struct in_addr *addr, int first) | |
718e3744 | 1867 | { |
1868 | #if 0 | |
1869 | struct ospf_nbr_nbma *nbr_nbma; | |
52dc7ee6 | 1870 | struct listnode *node; |
718e3744 | 1871 | #endif |
1872 | ||
d62a17ae | 1873 | if (ospf == NULL) |
1874 | return NULL; | |
718e3744 | 1875 | |
1876 | #if 0 | |
1eb8ef25 | 1877 | for (ALL_LIST_ELEMENTS_RO (ospf->nbr_nbma, node, nbr_nbma)) |
718e3744 | 1878 | { |
718e3744 | 1879 | if (first) |
1880 | { | |
1881 | *addr = nbr_nbma->addr; | |
1882 | return nbr_nbma; | |
1883 | } | |
1884 | else if (ntohl (nbr_nbma->addr.s_addr) > ntohl (addr->s_addr)) | |
1885 | { | |
1886 | *addr = nbr_nbma->addr; | |
1887 | return nbr_nbma; | |
1888 | } | |
1889 | } | |
1890 | #endif | |
d62a17ae | 1891 | return NULL; |
718e3744 | 1892 | } |
1893 | ||
d62a17ae | 1894 | int ospf_nbr_nbma_set(struct ospf *ospf, struct in_addr nbr_addr) |
718e3744 | 1895 | { |
d62a17ae | 1896 | struct ospf_nbr_nbma *nbr_nbma; |
1897 | struct ospf_interface *oi; | |
1898 | struct prefix_ipv4 p; | |
1899 | struct route_node *rn; | |
1900 | struct listnode *node; | |
718e3744 | 1901 | |
d62a17ae | 1902 | nbr_nbma = ospf_nbr_nbma_lookup(ospf, nbr_addr); |
1903 | if (nbr_nbma) | |
1904 | return 0; | |
718e3744 | 1905 | |
d62a17ae | 1906 | nbr_nbma = ospf_nbr_nbma_new(); |
1907 | nbr_nbma->addr = nbr_addr; | |
718e3744 | 1908 | |
d62a17ae | 1909 | p.family = AF_INET; |
1910 | p.prefix = nbr_addr; | |
1911 | p.prefixlen = IPV4_MAX_BITLEN; | |
718e3744 | 1912 | |
d62a17ae | 1913 | rn = route_node_get(ospf->nbr_nbma, (struct prefix *)&p); |
1914 | if (rn->info) | |
1915 | route_unlock_node(rn); | |
1916 | rn->info = nbr_nbma; | |
718e3744 | 1917 | |
d62a17ae | 1918 | for (ALL_LIST_ELEMENTS_RO(ospf->oiflist, node, oi)) { |
1919 | if (oi->type == OSPF_IFTYPE_NBMA) | |
1920 | if (prefix_match(oi->address, (struct prefix *)&p)) { | |
1921 | ospf_nbr_nbma_add(nbr_nbma, oi); | |
1922 | break; | |
1923 | } | |
1924 | } | |
718e3744 | 1925 | |
d62a17ae | 1926 | return 1; |
718e3744 | 1927 | } |
1928 | ||
d62a17ae | 1929 | int ospf_nbr_nbma_unset(struct ospf *ospf, struct in_addr nbr_addr) |
718e3744 | 1930 | { |
d62a17ae | 1931 | struct ospf_nbr_nbma *nbr_nbma; |
718e3744 | 1932 | |
d62a17ae | 1933 | nbr_nbma = ospf_nbr_nbma_lookup(ospf, nbr_addr); |
1934 | if (nbr_nbma == NULL) | |
1935 | return 0; | |
718e3744 | 1936 | |
d62a17ae | 1937 | ospf_nbr_nbma_down(nbr_nbma); |
1938 | ospf_nbr_nbma_delete(ospf, nbr_nbma); | |
718e3744 | 1939 | |
d62a17ae | 1940 | return 1; |
718e3744 | 1941 | } |
1942 | ||
d62a17ae | 1943 | int ospf_nbr_nbma_priority_set(struct ospf *ospf, struct in_addr nbr_addr, |
1944 | u_char priority) | |
718e3744 | 1945 | { |
d62a17ae | 1946 | struct ospf_nbr_nbma *nbr_nbma; |
718e3744 | 1947 | |
d62a17ae | 1948 | nbr_nbma = ospf_nbr_nbma_lookup(ospf, nbr_addr); |
1949 | if (nbr_nbma == NULL) | |
1950 | return 0; | |
718e3744 | 1951 | |
d62a17ae | 1952 | if (nbr_nbma->priority != priority) |
1953 | nbr_nbma->priority = priority; | |
718e3744 | 1954 | |
d62a17ae | 1955 | return 1; |
718e3744 | 1956 | } |
1957 | ||
d62a17ae | 1958 | int ospf_nbr_nbma_priority_unset(struct ospf *ospf, struct in_addr nbr_addr) |
718e3744 | 1959 | { |
d62a17ae | 1960 | struct ospf_nbr_nbma *nbr_nbma; |
718e3744 | 1961 | |
d62a17ae | 1962 | nbr_nbma = ospf_nbr_nbma_lookup(ospf, nbr_addr); |
1963 | if (nbr_nbma == NULL) | |
1964 | return 0; | |
718e3744 | 1965 | |
d62a17ae | 1966 | if (nbr_nbma != OSPF_NEIGHBOR_PRIORITY_DEFAULT) |
1967 | nbr_nbma->priority = OSPF_NEIGHBOR_PRIORITY_DEFAULT; | |
718e3744 | 1968 | |
d62a17ae | 1969 | return 1; |
718e3744 | 1970 | } |
1971 | ||
d62a17ae | 1972 | int ospf_nbr_nbma_poll_interval_set(struct ospf *ospf, struct in_addr nbr_addr, |
1973 | unsigned int interval) | |
718e3744 | 1974 | { |
d62a17ae | 1975 | struct ospf_nbr_nbma *nbr_nbma; |
718e3744 | 1976 | |
d62a17ae | 1977 | nbr_nbma = ospf_nbr_nbma_lookup(ospf, nbr_addr); |
1978 | if (nbr_nbma == NULL) | |
1979 | return 0; | |
718e3744 | 1980 | |
d62a17ae | 1981 | if (nbr_nbma->v_poll != interval) { |
1982 | nbr_nbma->v_poll = interval; | |
1983 | if (nbr_nbma->oi && ospf_if_is_up(nbr_nbma->oi)) { | |
1984 | OSPF_TIMER_OFF(nbr_nbma->t_poll); | |
1985 | OSPF_POLL_TIMER_ON(nbr_nbma->t_poll, ospf_poll_timer, | |
1986 | nbr_nbma->v_poll); | |
1987 | } | |
718e3744 | 1988 | } |
718e3744 | 1989 | |
d62a17ae | 1990 | return 1; |
718e3744 | 1991 | } |
1992 | ||
d62a17ae | 1993 | int ospf_nbr_nbma_poll_interval_unset(struct ospf *ospf, struct in_addr addr) |
718e3744 | 1994 | { |
d62a17ae | 1995 | struct ospf_nbr_nbma *nbr_nbma; |
718e3744 | 1996 | |
d62a17ae | 1997 | nbr_nbma = ospf_nbr_nbma_lookup(ospf, addr); |
1998 | if (nbr_nbma == NULL) | |
1999 | return 0; | |
718e3744 | 2000 | |
d62a17ae | 2001 | if (nbr_nbma->v_poll != OSPF_POLL_INTERVAL_DEFAULT) |
2002 | nbr_nbma->v_poll = OSPF_POLL_INTERVAL_DEFAULT; | |
718e3744 | 2003 | |
d62a17ae | 2004 | return 1; |
718e3744 | 2005 | } |
2006 | ||
d62a17ae | 2007 | void ospf_master_init(struct thread_master *master) |
718e3744 | 2008 | { |
d62a17ae | 2009 | memset(&ospf_master, 0, sizeof(struct ospf_master)); |
020709f9 | 2010 | |
d62a17ae | 2011 | om = &ospf_master; |
2012 | om->ospf = list_new(); | |
2013 | om->master = master; | |
020709f9 | 2014 | } |
b5a8894d CS |
2015 | |
2016 | /* Link OSPF instance to VRF. */ | |
2017 | void ospf_vrf_link(struct ospf *ospf, struct vrf *vrf) | |
2018 | { | |
2019 | ospf->vrf_id = vrf->vrf_id; | |
2020 | if (vrf->info != (void *)ospf) | |
2021 | vrf->info = (void *)ospf; | |
2022 | } | |
2023 | ||
2024 | /* Unlink OSPF instance from VRF. */ | |
2025 | void ospf_vrf_unlink(struct ospf *ospf, struct vrf *vrf) | |
2026 | { | |
2027 | if (vrf->info == (void *)ospf) | |
2028 | vrf->info = NULL; | |
2029 | ospf->vrf_id = VRF_UNKNOWN; | |
2030 | } | |
2031 | ||
2032 | /* This is hook function for vrf create called as part of vrf_init */ | |
2033 | static int ospf_vrf_new(struct vrf *vrf) | |
2034 | { | |
2035 | if (IS_DEBUG_OSPF_EVENT) | |
fe3da9e7 | 2036 | zlog_debug("%s: VRF Created: %s(%u)", __PRETTY_FUNCTION__, |
b5a8894d CS |
2037 | vrf->name, vrf->vrf_id); |
2038 | ||
2039 | return 0; | |
2040 | } | |
2041 | ||
2042 | /* This is hook function for vrf delete call as part of vrf_init */ | |
2043 | static int ospf_vrf_delete(struct vrf *vrf) | |
2044 | { | |
2045 | if (IS_DEBUG_OSPF_EVENT) | |
fe3da9e7 | 2046 | zlog_debug("%s: VRF Deletion: %s(%u)", __PRETTY_FUNCTION__, |
b5a8894d CS |
2047 | vrf->name, vrf->vrf_id); |
2048 | ||
2049 | return 0; | |
2050 | } | |
2051 | ||
3d9f7302 PZ |
2052 | static void ospf_set_redist_vrf_bitmaps(struct ospf *ospf) |
2053 | { | |
2054 | int type; | |
2055 | struct list *red_list; | |
2056 | ||
2057 | for (type = 0; type < ZEBRA_ROUTE_MAX; type++) { | |
2058 | red_list = ospf->redist[type]; | |
2059 | if (!red_list) | |
2060 | continue; | |
2061 | if (IS_DEBUG_OSPF_EVENT) | |
2062 | zlog_debug( | |
2063 | "%s: setting redist vrf %d bitmap for type %d", | |
2064 | __func__, ospf->vrf_id, type); | |
2065 | vrf_bitmap_set(zclient->redist[AFI_IP][type], ospf->vrf_id); | |
2066 | } | |
2067 | } | |
2068 | ||
b5a8894d CS |
2069 | /* Enable OSPF VRF instance */ |
2070 | static int ospf_vrf_enable(struct vrf *vrf) | |
2071 | { | |
2072 | struct ospf *ospf = NULL; | |
7d206035 | 2073 | vrf_id_t old_vrf_id; |
3c0eb8fa | 2074 | int ret = 0; |
b5a8894d CS |
2075 | |
2076 | if (IS_DEBUG_OSPF_EVENT) | |
996c9314 LB |
2077 | zlog_debug("%s: VRF %s id %u enabled", __PRETTY_FUNCTION__, |
2078 | vrf->name, vrf->vrf_id); | |
b5a8894d CS |
2079 | |
2080 | ospf = ospf_lookup_by_name(vrf->name); | |
2081 | if (ospf) { | |
2082 | old_vrf_id = ospf->vrf_id; | |
2083 | /* We have instance configured, link to VRF and make it "up". */ | |
2084 | ospf_vrf_link(ospf, vrf); | |
2085 | if (IS_DEBUG_OSPF_EVENT) | |
996c9314 LB |
2086 | zlog_debug( |
2087 | "%s: ospf linked to vrf %s vrf_id %u (old id %u)", | |
2088 | __PRETTY_FUNCTION__, vrf->name, ospf->vrf_id, | |
2089 | old_vrf_id); | |
b5a8894d CS |
2090 | |
2091 | if (old_vrf_id != ospf->vrf_id) { | |
e7503eab | 2092 | if (ospfd_privs.change(ZPRIVS_RAISE)) { |
996c9314 LB |
2093 | zlog_err( |
2094 | "ospf_sock_init: could not raise privs, %s", | |
2095 | safe_strerror(errno)); | |
e7503eab | 2096 | } |
3d9f7302 PZ |
2097 | |
2098 | /* stop zebra redist to us for old vrf */ | |
2099 | zclient_send_dereg_requests(zclient, old_vrf_id); | |
2100 | ||
2101 | ospf_set_redist_vrf_bitmaps(ospf); | |
2102 | ||
2103 | /* start zebra redist to us for new vrf */ | |
2104 | ospf_zebra_vrf_register(ospf); | |
2105 | ||
3c0eb8fa | 2106 | ret = ospf_sock_init(ospf); |
e7503eab | 2107 | if (ospfd_privs.change(ZPRIVS_LOWER)) { |
996c9314 LB |
2108 | zlog_err( |
2109 | "ospf_sock_init: could not lower privs, %s", | |
2110 | safe_strerror(errno)); | |
e7503eab | 2111 | } |
3c0eb8fa PG |
2112 | if (ret < 0 || ospf->fd <= 0) |
2113 | return 0; | |
996c9314 LB |
2114 | thread_add_read(master, ospf_read, ospf, ospf->fd, |
2115 | &ospf->t_read); | |
b5a8894d CS |
2116 | ospf->oi_running = 1; |
2117 | ospf_router_id_update(ospf); | |
2118 | } | |
2119 | } | |
2120 | ||
2121 | return 0; | |
2122 | } | |
2123 | ||
2124 | /* Disable OSPF VRF instance */ | |
2125 | static int ospf_vrf_disable(struct vrf *vrf) | |
2126 | { | |
2127 | struct ospf *ospf = NULL; | |
2128 | vrf_id_t old_vrf_id = VRF_UNKNOWN; | |
2129 | ||
2130 | if (vrf->vrf_id == VRF_DEFAULT) | |
2131 | return 0; | |
2132 | ||
2133 | if (IS_DEBUG_OSPF_EVENT) | |
996c9314 LB |
2134 | zlog_debug("%s: VRF %s id %d disabled.", __PRETTY_FUNCTION__, |
2135 | vrf->name, vrf->vrf_id); | |
b5a8894d CS |
2136 | |
2137 | ospf = ospf_lookup_by_name(vrf->name); | |
2138 | if (ospf) { | |
2139 | old_vrf_id = ospf->vrf_id; | |
2140 | ||
2141 | /* We have instance configured, unlink | |
2142 | * from VRF and make it "down". | |
2143 | */ | |
2144 | ospf_vrf_unlink(ospf, vrf); | |
2145 | ospf->oi_running = 0; | |
2146 | if (IS_DEBUG_OSPF_EVENT) | |
2147 | zlog_debug("%s: ospf old_vrf_id %d unlinked", | |
996c9314 | 2148 | __PRETTY_FUNCTION__, old_vrf_id); |
3c0eb8fa PG |
2149 | thread_cancel(ospf->t_read); |
2150 | close(ospf->fd); | |
2151 | ospf->fd = -1; | |
b5a8894d CS |
2152 | } |
2153 | ||
2154 | /* Note: This is a callback, the VRF will be deleted by the caller. */ | |
2155 | return 0; | |
2156 | } | |
2157 | ||
2158 | void ospf_vrf_init(void) | |
2159 | { | |
996c9314 LB |
2160 | vrf_init(ospf_vrf_new, ospf_vrf_enable, ospf_vrf_disable, |
2161 | ospf_vrf_delete); | |
b5a8894d CS |
2162 | } |
2163 | ||
2164 | void ospf_vrf_terminate(void) | |
2165 | { | |
2166 | vrf_terminate(); | |
2167 | } | |
2168 | ||
2169 | const char *ospf_vrf_id_to_name(vrf_id_t vrf_id) | |
2170 | { | |
2171 | struct vrf *vrf = vrf_lookup_by_id(vrf_id); | |
2172 | ||
2173 | return vrf ? vrf->name : "NIL"; | |
2174 | } |