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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. */ | |
d7c0a89a | 226 | static struct ospf *ospf_new(unsigned 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 | } else { |
247 | new->vrf_id = VRF_DEFAULT; | |
248 | vrf = vrf_lookup_by_id(VRF_DEFAULT); | |
b5a8894d | 249 | } |
a2d7fdfe | 250 | |
251 | if (vrf) | |
252 | ospf_vrf_link(new, vrf); | |
253 | ||
b5a8894d CS |
254 | ospf_zebra_vrf_register(new); |
255 | ||
d62a17ae | 256 | new->abr_type = OSPF_ABR_DEFAULT; |
257 | new->oiflist = list_new(); | |
258 | new->vlinks = list_new(); | |
259 | new->areas = list_new(); | |
260 | new->areas->cmp = (int (*)(void *, void *))ospf_area_id_cmp; | |
261 | new->networks = route_table_init(); | |
262 | new->nbr_nbma = route_table_init(); | |
718e3744 | 263 | |
d62a17ae | 264 | new->lsdb = ospf_lsdb_new(); |
718e3744 | 265 | |
d62a17ae | 266 | new->default_originate = DEFAULT_ORIGINATE_NONE; |
718e3744 | 267 | |
d62a17ae | 268 | new->passive_interface_default = OSPF_IF_ACTIVE; |
4ba4fc85 | 269 | |
d62a17ae | 270 | new->new_external_route = route_table_init(); |
271 | new->old_external_route = route_table_init(); | |
272 | new->external_lsas = route_table_init(); | |
273 | ||
274 | new->stub_router_startup_time = OSPF_STUB_ROUTER_UNCONFIGURED; | |
275 | new->stub_router_shutdown_time = OSPF_STUB_ROUTER_UNCONFIGURED; | |
276 | new->stub_router_admin_set = OSPF_STUB_ROUTER_ADMINISTRATIVE_UNSET; | |
277 | ||
278 | /* Distribute parameter init. */ | |
279 | for (i = 0; i <= ZEBRA_ROUTE_MAX; i++) { | |
280 | new->dtag[i] = 0; | |
281 | } | |
282 | new->default_metric = -1; | |
283 | new->ref_bandwidth = OSPF_DEFAULT_REF_BANDWIDTH; | |
284 | ||
285 | /* LSA timers */ | |
286 | new->min_ls_interval = OSPF_MIN_LS_INTERVAL; | |
287 | new->min_ls_arrival = OSPF_MIN_LS_ARRIVAL; | |
288 | ||
289 | /* SPF timer value init. */ | |
290 | new->spf_delay = OSPF_SPF_DELAY_DEFAULT; | |
291 | new->spf_holdtime = OSPF_SPF_HOLDTIME_DEFAULT; | |
292 | new->spf_max_holdtime = OSPF_SPF_MAX_HOLDTIME_DEFAULT; | |
293 | new->spf_hold_multiplier = 1; | |
294 | ||
295 | /* MaxAge init. */ | |
296 | new->maxage_delay = OSPF_LSA_MAXAGE_REMOVE_DELAY_DEFAULT; | |
297 | new->maxage_lsa = route_table_init(); | |
298 | new->t_maxage_walker = NULL; | |
299 | thread_add_timer(master, ospf_lsa_maxage_walker, new, | |
300 | OSPF_LSA_MAXAGE_CHECK_INTERVAL, &new->t_maxage_walker); | |
301 | ||
302 | /* Distance table init. */ | |
303 | new->distance_table = route_table_init(); | |
304 | ||
305 | new->lsa_refresh_queue.index = 0; | |
306 | new->lsa_refresh_interval = OSPF_LSA_REFRESH_INTERVAL_DEFAULT; | |
307 | new->t_lsa_refresher = NULL; | |
308 | thread_add_timer(master, ospf_lsa_refresh_walker, new, | |
309 | new->lsa_refresh_interval, &new->t_lsa_refresher); | |
310 | new->lsa_refresher_started = monotime(NULL); | |
311 | ||
d62a17ae | 312 | if ((new->ibuf = stream_new(OSPF_MAX_PACKET_SIZE + 1)) == NULL) { |
313 | zlog_err( | |
314 | "ospf_new: fatal error: stream_new(%u) failed allocating ibuf", | |
315 | OSPF_MAX_PACKET_SIZE + 1); | |
316 | exit(1); | |
317 | } | |
318 | new->t_read = NULL; | |
d62a17ae | 319 | new->oi_write_q = list_new(); |
320 | new->write_oi_count = OSPF_WRITE_INTERFACE_COUNT_DEFAULT; | |
321 | ||
322 | /* Enable "log-adjacency-changes" */ | |
8efe88ea | 323 | #if DFLT_OSPF_LOG_ADJACENCY_CHANGES |
d62a17ae | 324 | SET_FLAG(new->config, OSPF_LOG_ADJACENCY_CHANGES); |
8efe88ea | 325 | #endif |
3e7c8d04 | 326 | |
d62a17ae | 327 | QOBJ_REG(new, ospf); |
ae19c240 | 328 | |
3c0eb8fa PG |
329 | new->fd = -1; |
330 | if ((ospf_sock_init(new)) < 0) { | |
331 | if (new->vrf_id != VRF_UNKNOWN) | |
332 | zlog_warn( | |
996c9314 LB |
333 | "%s: ospf_sock_init is unable to open a socket", |
334 | __func__); | |
3c0eb8fa PG |
335 | return new; |
336 | } | |
337 | thread_add_read(master, ospf_read, new, new->fd, &new->t_read); | |
338 | ||
d62a17ae | 339 | return new; |
718e3744 | 340 | } |
341 | ||
d7c0a89a | 342 | struct ospf *ospf_lookup_instance(unsigned short instance) |
7c8ff89e | 343 | { |
d62a17ae | 344 | struct ospf *ospf; |
345 | struct listnode *node, *nnode; | |
7c8ff89e | 346 | |
d62a17ae | 347 | if (listcount(om->ospf) == 0) |
348 | return NULL; | |
7c8ff89e | 349 | |
d62a17ae | 350 | for (ALL_LIST_ELEMENTS(om->ospf, node, nnode, ospf)) |
351 | if ((ospf->instance == 0 && instance == 0) | |
352 | || (ospf->instance && instance | |
353 | && ospf->instance == instance)) | |
354 | return ospf; | |
7c8ff89e | 355 | |
d62a17ae | 356 | return NULL; |
7c8ff89e DS |
357 | } |
358 | ||
d62a17ae | 359 | static int ospf_is_ready(struct ospf *ospf) |
52c62ab8 | 360 | { |
d62a17ae | 361 | /* OSPF must be on and Router-ID must be configured. */ |
362 | if (!ospf || ospf->router_id.s_addr == 0) | |
363 | return 0; | |
364 | ||
365 | return 1; | |
52c62ab8 JAG |
366 | } |
367 | ||
d62a17ae | 368 | static void ospf_add(struct ospf *ospf) |
020709f9 | 369 | { |
d62a17ae | 370 | listnode_add(om->ospf, ospf); |
020709f9 | 371 | } |
718e3744 | 372 | |
d62a17ae | 373 | static void ospf_delete(struct ospf *ospf) |
020709f9 | 374 | { |
d62a17ae | 375 | listnode_delete(om->ospf, ospf); |
020709f9 | 376 | } |
68980084 | 377 | |
d7c0a89a | 378 | struct ospf *ospf_lookup_by_inst_name(unsigned short instance, const char *name) |
b5a8894d CS |
379 | { |
380 | struct ospf *ospf = NULL; | |
381 | struct listnode *node, *nnode; | |
382 | ||
383 | for (ALL_LIST_ELEMENTS(om->ospf, node, nnode, ospf)) { | |
996c9314 LB |
384 | if ((ospf->instance == instance) |
385 | && ((ospf->name == NULL && name == NULL) | |
386 | || (ospf->name && name | |
387 | && strcmp(ospf->name, name) == 0))) | |
b5a8894d CS |
388 | return ospf; |
389 | } | |
390 | return NULL; | |
391 | } | |
392 | ||
d7c0a89a | 393 | struct ospf *ospf_get(unsigned short instance, const char *name) |
020709f9 | 394 | { |
d62a17ae | 395 | struct ospf *ospf; |
020709f9 | 396 | |
b5a8894d CS |
397 | /* vrf name provided call inst and name based api |
398 | * in case of no name pass default ospf instance */ | |
399 | if (name) | |
400 | ospf = ospf_lookup_by_inst_name(instance, name); | |
401 | else | |
402 | ospf = ospf_lookup_by_vrf_id(VRF_DEFAULT); | |
403 | ||
d62a17ae | 404 | if (ospf == NULL) { |
b5a8894d | 405 | ospf = ospf_new(instance, name); |
d62a17ae | 406 | ospf_add(ospf); |
7c8ff89e | 407 | |
d62a17ae | 408 | if (ospf->router_id_static.s_addr == 0) |
409 | ospf_router_id_update(ospf); | |
7c8ff89e | 410 | |
d62a17ae | 411 | ospf_opaque_type11_lsa_init(ospf); |
412 | } | |
7c8ff89e | 413 | |
d62a17ae | 414 | return ospf; |
7c8ff89e DS |
415 | } |
416 | ||
d7c0a89a | 417 | struct ospf *ospf_get_instance(unsigned short instance) |
7c8ff89e | 418 | { |
d62a17ae | 419 | struct ospf *ospf; |
7c8ff89e | 420 | |
d62a17ae | 421 | ospf = ospf_lookup_instance(instance); |
422 | if (ospf == NULL) { | |
b5a8894d | 423 | ospf = ospf_new(instance, NULL /* VRF_DEFAULT*/); |
d62a17ae | 424 | ospf_add(ospf); |
020709f9 | 425 | |
b5a8894d CS |
426 | if (ospf->router_id_static.s_addr == 0) { |
427 | if (vrf_lookup_by_id(ospf->vrf_id)) | |
428 | ospf_router_id_update(ospf); | |
429 | else { | |
430 | if (IS_DEBUG_OSPF_EVENT) | |
996c9314 LB |
431 | zlog_debug( |
432 | "%s: ospf VRF (id %d) is not active yet, skip router id update", | |
433 | __PRETTY_FUNCTION__, | |
434 | ospf->vrf_id); | |
b5a8894d | 435 | } |
d62a17ae | 436 | ospf_router_id_update(ospf); |
b5a8894d | 437 | } |
718e3744 | 438 | |
d62a17ae | 439 | ospf_opaque_type11_lsa_init(ospf); |
440 | } | |
68980084 | 441 | |
d62a17ae | 442 | return ospf; |
718e3744 | 443 | } |
6b0655a2 | 444 | |
b5a8894d CS |
445 | struct ospf *ospf_lookup_by_vrf_id(vrf_id_t vrf_id) |
446 | { | |
447 | struct vrf *vrf = NULL; | |
448 | ||
449 | vrf = vrf_lookup_by_id(vrf_id); | |
450 | if (!vrf) | |
451 | return NULL; | |
452 | return (vrf->info) ? (struct ospf *)vrf->info : NULL; | |
b5a8894d CS |
453 | } |
454 | ||
43b8d1d8 CS |
455 | /* It should only be used when processing incoming info update from zebra. |
456 | * Other situations, it is not sufficient to lookup the ospf instance by | |
457 | * vrf_name only without using the instance number. | |
458 | */ | |
459 | static struct ospf *ospf_lookup_by_name(const char *vrf_name) | |
b5a8894d CS |
460 | { |
461 | struct ospf *ospf = NULL; | |
462 | struct listnode *node, *nnode; | |
463 | ||
464 | for (ALL_LIST_ELEMENTS(om->ospf, node, nnode, ospf)) | |
43b8d1d8 | 465 | if ((ospf->name == NULL && vrf_name == NULL) |
996c9314 LB |
466 | || (ospf->name && vrf_name |
467 | && strcmp(ospf->name, vrf_name) == 0)) | |
b5a8894d CS |
468 | return ospf; |
469 | return NULL; | |
470 | } | |
471 | ||
c9c93d50 | 472 | /* Handle the second half of deferred shutdown. This is called either |
473 | * from the deferred-shutdown timer thread, or directly through | |
474 | * ospf_deferred_shutdown_check. | |
88d6cf37 | 475 | * |
476 | * Function is to cleanup G-R state, if required then call ospf_finish_final | |
477 | * to complete shutdown of this ospf instance. Possibly exit if the | |
478 | * whole process is being shutdown and this was the last OSPF instance. | |
479 | */ | |
d62a17ae | 480 | static void ospf_deferred_shutdown_finish(struct ospf *ospf) |
481 | { | |
482 | ospf->stub_router_shutdown_time = OSPF_STUB_ROUTER_UNCONFIGURED; | |
483 | OSPF_TIMER_OFF(ospf->t_deferred_shutdown); | |
484 | ||
485 | ospf_finish_final(ospf); | |
486 | ||
487 | /* *ospf is now invalid */ | |
88d6cf37 | 488 | |
d62a17ae | 489 | /* ospfd being shut-down? If so, was this the last ospf instance? */ |
490 | if (CHECK_FLAG(om->options, OSPF_MASTER_SHUTDOWN) | |
491 | && (listcount(om->ospf) == 0)) { | |
492 | exit(0); | |
493 | } | |
494 | ||
495 | return; | |
88d6cf37 | 496 | } |
497 | ||
498 | /* Timer thread for G-R */ | |
d62a17ae | 499 | static int ospf_deferred_shutdown_timer(struct thread *t) |
88d6cf37 | 500 | { |
d62a17ae | 501 | struct ospf *ospf = THREAD_ARG(t); |
502 | ||
503 | ospf_deferred_shutdown_finish(ospf); | |
504 | ||
505 | return 0; | |
88d6cf37 | 506 | } |
507 | ||
c9c93d50 | 508 | /* Check whether deferred-shutdown must be scheduled, otherwise call |
88d6cf37 | 509 | * down directly into second-half of instance shutdown. |
510 | */ | |
d62a17ae | 511 | static void ospf_deferred_shutdown_check(struct ospf *ospf) |
512 | { | |
513 | unsigned long timeout; | |
514 | struct listnode *ln; | |
515 | struct ospf_area *area; | |
516 | ||
517 | /* deferred shutdown already running? */ | |
518 | if (ospf->t_deferred_shutdown) | |
519 | return; | |
520 | ||
521 | /* Should we try push out max-metric LSAs? */ | |
522 | if (ospf->stub_router_shutdown_time != OSPF_STUB_ROUTER_UNCONFIGURED) { | |
523 | for (ALL_LIST_ELEMENTS_RO(ospf->areas, ln, area)) { | |
524 | SET_FLAG(area->stub_router_state, | |
525 | OSPF_AREA_ADMIN_STUB_ROUTED); | |
526 | ||
527 | if (!CHECK_FLAG(area->stub_router_state, | |
528 | OSPF_AREA_IS_STUB_ROUTED)) | |
529 | ospf_router_lsa_update_area(area); | |
530 | } | |
531 | timeout = ospf->stub_router_shutdown_time; | |
532 | } else { | |
533 | /* No timer needed */ | |
534 | ospf_deferred_shutdown_finish(ospf); | |
535 | return; | |
536 | } | |
537 | ||
538 | OSPF_TIMER_ON(ospf->t_deferred_shutdown, ospf_deferred_shutdown_timer, | |
539 | timeout); | |
540 | return; | |
88d6cf37 | 541 | } |
6b0655a2 | 542 | |
88d6cf37 | 543 | /* Shut down the entire process */ |
d62a17ae | 544 | void ospf_terminate(void) |
545 | { | |
546 | struct ospf *ospf; | |
547 | struct listnode *node, *nnode; | |
548 | ||
549 | /* shutdown already in progress */ | |
550 | if (CHECK_FLAG(om->options, OSPF_MASTER_SHUTDOWN)) | |
551 | return; | |
552 | ||
553 | SET_FLAG(om->options, OSPF_MASTER_SHUTDOWN); | |
554 | ||
555 | /* exit immediately if OSPF not actually running */ | |
556 | if (listcount(om->ospf) == 0) | |
557 | exit(0); | |
558 | ||
559 | bfd_gbl_exit(); | |
560 | for (ALL_LIST_ELEMENTS(om->ospf, node, nnode, ospf)) | |
561 | ospf_finish(ospf); | |
562 | ||
ded42248 CS |
563 | /* Cleanup route maps */ |
564 | route_map_add_hook(NULL); | |
565 | route_map_delete_hook(NULL); | |
566 | route_map_event_hook(NULL); | |
567 | route_map_finish(); | |
568 | ||
569 | /* reverse prefix_list_init */ | |
570 | prefix_list_add_hook(NULL); | |
571 | prefix_list_delete_hook(NULL); | |
572 | prefix_list_reset(); | |
573 | ||
574 | /* Cleanup vrf info */ | |
575 | ospf_vrf_terminate(); | |
576 | ||
d62a17ae | 577 | /* Deliberately go back up, hopefully to thread scheduler, as |
578 | * One or more ospf_finish()'s may have deferred shutdown to a timer | |
579 | * thread | |
580 | */ | |
581 | zclient_stop(zclient); | |
582 | zclient_free(zclient); | |
8879bd22 RW |
583 | |
584 | frr_fini(); | |
d62a17ae | 585 | } |
586 | ||
587 | void ospf_finish(struct ospf *ospf) | |
588 | { | |
589 | /* let deferred shutdown decide */ | |
590 | ospf_deferred_shutdown_check(ospf); | |
591 | ||
592 | /* if ospf_deferred_shutdown returns, then ospf_finish_final is | |
593 | * deferred to expiry of G-S timer thread. Return back up, hopefully | |
594 | * to thread scheduler. | |
595 | */ | |
596 | return; | |
88d6cf37 | 597 | } |
598 | ||
599 | /* Final cleanup of ospf instance */ | |
d62a17ae | 600 | static void ospf_finish_final(struct ospf *ospf) |
718e3744 | 601 | { |
f4e14fdb | 602 | struct vrf *vrf = vrf_lookup_by_id(ospf->vrf_id); |
d62a17ae | 603 | struct route_node *rn; |
604 | struct ospf_nbr_nbma *nbr_nbma; | |
605 | struct ospf_lsa *lsa; | |
606 | struct interface *ifp; | |
607 | struct ospf_interface *oi; | |
608 | struct ospf_area *area; | |
609 | struct ospf_vl_data *vl_data; | |
610 | struct listnode *node, *nnode; | |
611 | int i; | |
d7c0a89a | 612 | unsigned short instance = 0; |
7c8ff89e | 613 | |
d62a17ae | 614 | QOBJ_UNREG(ospf); |
7c8ff89e | 615 | |
d62a17ae | 616 | ospf_opaque_type11_lsa_term(ospf); |
953cde65 | 617 | |
bcf4475e OD |
618 | ospf_opaque_finish(); |
619 | ||
046460a1 | 620 | ospf_flush_self_originated_lsas_now(ospf); |
953cde65 | 621 | |
d62a17ae | 622 | /* Unregister redistribution */ |
623 | for (i = 0; i < ZEBRA_ROUTE_MAX; i++) { | |
624 | struct list *red_list; | |
625 | struct ospf_redist *red; | |
718e3744 | 626 | |
d62a17ae | 627 | red_list = ospf->redist[i]; |
628 | if (!red_list) | |
629 | continue; | |
718e3744 | 630 | |
d62a17ae | 631 | for (ALL_LIST_ELEMENTS(red_list, node, nnode, red)) |
632 | ospf_redistribute_unset(ospf, i, red->instance); | |
633 | } | |
634 | ospf_redistribute_default_unset(ospf); | |
718e3744 | 635 | |
d62a17ae | 636 | for (ALL_LIST_ELEMENTS(ospf->areas, node, nnode, area)) |
637 | ospf_remove_vls_through_area(ospf, area); | |
718e3744 | 638 | |
d62a17ae | 639 | for (ALL_LIST_ELEMENTS(ospf->vlinks, node, nnode, vl_data)) |
640 | ospf_vl_delete(ospf, vl_data); | |
718e3744 | 641 | |
affe9e99 | 642 | list_delete_and_null(&ospf->vlinks); |
718e3744 | 643 | |
d62a17ae | 644 | /* Remove any ospf interface config params */ |
451fda4f | 645 | FOR_ALL_INTERFACES (vrf, ifp) { |
d62a17ae | 646 | struct ospf_if_params *params; |
718e3744 | 647 | |
d62a17ae | 648 | params = IF_DEF_PARAMS(ifp); |
649 | if (OSPF_IF_PARAM_CONFIGURED(params, if_area)) | |
650 | UNSET_IF_PARAM(params, if_area); | |
718e3744 | 651 | } |
718e3744 | 652 | |
d62a17ae | 653 | /* Reset interface. */ |
654 | for (ALL_LIST_ELEMENTS(ospf->oiflist, node, nnode, oi)) | |
655 | ospf_if_free(oi); | |
84519c81 | 656 | list_delete_and_null(&ospf->oiflist); |
718e3744 | 657 | |
b5a8894d CS |
658 | /* De-Register VRF */ |
659 | ospf_zebra_vrf_deregister(ospf); | |
660 | ||
d62a17ae | 661 | /* Clear static neighbors */ |
662 | for (rn = route_top(ospf->nbr_nbma); rn; rn = route_next(rn)) | |
663 | if ((nbr_nbma = rn->info)) { | |
664 | OSPF_POLL_TIMER_OFF(nbr_nbma->t_poll); | |
718e3744 | 665 | |
d62a17ae | 666 | if (nbr_nbma->nbr) { |
667 | nbr_nbma->nbr->nbr_nbma = NULL; | |
668 | nbr_nbma->nbr = NULL; | |
669 | } | |
670 | ||
671 | if (nbr_nbma->oi) { | |
672 | listnode_delete(nbr_nbma->oi->nbr_nbma, | |
673 | nbr_nbma); | |
674 | nbr_nbma->oi = NULL; | |
675 | } | |
676 | ||
677 | XFREE(MTYPE_OSPF_NEIGHBOR_STATIC, nbr_nbma); | |
678 | } | |
679 | ||
680 | route_table_finish(ospf->nbr_nbma); | |
681 | ||
682 | /* Clear networks and Areas. */ | |
683 | for (rn = route_top(ospf->networks); rn; rn = route_next(rn)) { | |
684 | struct ospf_network *network; | |
685 | ||
686 | if ((network = rn->info) != NULL) { | |
687 | ospf_network_free(ospf, network); | |
688 | rn->info = NULL; | |
689 | route_unlock_node(rn); | |
690 | } | |
91e6a0e5 | 691 | } |
7f586094 | 692 | route_table_finish(ospf->networks); |
718e3744 | 693 | |
d62a17ae | 694 | for (ALL_LIST_ELEMENTS(ospf->areas, node, nnode, area)) { |
695 | listnode_delete(ospf->areas, area); | |
696 | ospf_area_free(area); | |
697 | } | |
718e3744 | 698 | |
d62a17ae | 699 | /* Cancel all timers. */ |
700 | OSPF_TIMER_OFF(ospf->t_external_lsa); | |
701 | OSPF_TIMER_OFF(ospf->t_spf_calc); | |
702 | OSPF_TIMER_OFF(ospf->t_ase_calc); | |
703 | OSPF_TIMER_OFF(ospf->t_maxage); | |
704 | OSPF_TIMER_OFF(ospf->t_maxage_walker); | |
705 | OSPF_TIMER_OFF(ospf->t_abr_task); | |
706 | OSPF_TIMER_OFF(ospf->t_asbr_check); | |
707 | OSPF_TIMER_OFF(ospf->t_distribute_update); | |
708 | OSPF_TIMER_OFF(ospf->t_lsa_refresher); | |
709 | OSPF_TIMER_OFF(ospf->t_read); | |
710 | OSPF_TIMER_OFF(ospf->t_write); | |
711 | OSPF_TIMER_OFF(ospf->t_opaque_lsa_self); | |
45a43856 | 712 | OSPF_TIMER_OFF(ospf->t_sr_update); |
d62a17ae | 713 | |
714 | close(ospf->fd); | |
715 | stream_free(ospf->ibuf); | |
716 | ||
996c9314 | 717 | LSDB_LOOP (OPAQUE_AS_LSDB(ospf), rn, lsa) |
044506e7 | 718 | ospf_discard_from_db(ospf, ospf->lsdb, lsa); |
996c9314 | 719 | LSDB_LOOP (EXTERNAL_LSDB(ospf), rn, lsa) |
044506e7 | 720 | ospf_discard_from_db(ospf, ospf->lsdb, lsa); |
d62a17ae | 721 | |
722 | ospf_lsdb_delete_all(ospf->lsdb); | |
723 | ospf_lsdb_free(ospf->lsdb); | |
724 | ||
725 | for (rn = route_top(ospf->maxage_lsa); rn; rn = route_next(rn)) { | |
726 | struct ospf_lsa *lsa; | |
727 | ||
728 | if ((lsa = rn->info) != NULL) { | |
729 | ospf_lsa_unlock(&lsa); | |
730 | rn->info = NULL; | |
731 | } | |
732 | route_unlock_node(rn); | |
733 | } | |
734 | route_table_finish(ospf->maxage_lsa); | |
735 | ||
736 | if (ospf->old_table) | |
737 | ospf_route_table_free(ospf->old_table); | |
738 | if (ospf->new_table) { | |
b5a8894d | 739 | ospf_route_delete(ospf, ospf->new_table); |
d62a17ae | 740 | ospf_route_table_free(ospf->new_table); |
741 | } | |
742 | if (ospf->old_rtrs) | |
743 | ospf_rtrs_free(ospf->old_rtrs); | |
744 | if (ospf->new_rtrs) | |
745 | ospf_rtrs_free(ospf->new_rtrs); | |
746 | if (ospf->new_external_route) { | |
b5a8894d | 747 | ospf_route_delete(ospf, ospf->new_external_route); |
d62a17ae | 748 | ospf_route_table_free(ospf->new_external_route); |
749 | } | |
750 | if (ospf->old_external_route) { | |
b5a8894d | 751 | ospf_route_delete(ospf, ospf->old_external_route); |
d62a17ae | 752 | ospf_route_table_free(ospf->old_external_route); |
753 | } | |
754 | if (ospf->external_lsas) { | |
755 | ospf_ase_external_lsas_finish(ospf->external_lsas); | |
756 | } | |
718e3744 | 757 | |
affe9e99 DS |
758 | list_delete_and_null(&ospf->areas); |
759 | list_delete_and_null(&ospf->oi_write_q); | |
d62a17ae | 760 | |
761 | for (i = ZEBRA_ROUTE_SYSTEM; i <= ZEBRA_ROUTE_MAX; i++) { | |
762 | struct list *ext_list; | |
763 | struct listnode *node; | |
764 | struct ospf_external *ext; | |
765 | ||
de1ac5fd | 766 | ext_list = ospf->external[i]; |
d62a17ae | 767 | if (!ext_list) |
768 | continue; | |
769 | ||
770 | for (ALL_LIST_ELEMENTS_RO(ext_list, node, ext)) { | |
771 | if (ext->external_info) | |
772 | for (rn = route_top(ext->external_info); rn; | |
773 | rn = route_next(rn)) { | |
774 | if (rn->info == NULL) | |
775 | continue; | |
776 | ||
777 | XFREE(MTYPE_OSPF_EXTERNAL_INFO, | |
778 | rn->info); | |
779 | rn->info = NULL; | |
780 | route_unlock_node(rn); | |
781 | } | |
782 | } | |
783 | } | |
718e3744 | 784 | |
d62a17ae | 785 | ospf_distance_reset(ospf); |
786 | route_table_finish(ospf->distance_table); | |
7c8ff89e | 787 | |
d62a17ae | 788 | if (!CHECK_FLAG(om->options, OSPF_MASTER_SHUTDOWN)) |
789 | instance = ospf->instance; | |
718e3744 | 790 | |
d62a17ae | 791 | ospf_delete(ospf); |
7c8ff89e | 792 | |
b5a8894d CS |
793 | if (ospf->name) { |
794 | vrf = vrf_lookup_by_name(ospf->name); | |
795 | if (vrf) | |
796 | ospf_vrf_unlink(ospf, vrf); | |
797 | XFREE(MTYPE_OSPF_TOP, ospf->name); | |
798 | } else { | |
799 | vrf = vrf_lookup_by_id(VRF_DEFAULT); | |
800 | if (vrf) | |
801 | ospf_vrf_unlink(ospf, vrf); | |
802 | } | |
803 | ||
d62a17ae | 804 | XFREE(MTYPE_OSPF_TOP, ospf); |
7c8ff89e | 805 | |
d62a17ae | 806 | if (!CHECK_FLAG(om->options, OSPF_MASTER_SHUTDOWN)) |
807 | ospf_get_instance(instance); | |
718e3744 | 808 | } |
809 | ||
6b0655a2 | 810 | |
718e3744 | 811 | /* allocate new OSPF Area object */ |
d62a17ae | 812 | static struct ospf_area *ospf_area_new(struct ospf *ospf, |
813 | struct in_addr area_id) | |
718e3744 | 814 | { |
d62a17ae | 815 | struct ospf_area *new; |
718e3744 | 816 | |
d62a17ae | 817 | /* Allocate new config_network. */ |
818 | new = XCALLOC(MTYPE_OSPF_AREA, sizeof(struct ospf_area)); | |
718e3744 | 819 | |
d62a17ae | 820 | new->ospf = ospf; |
718e3744 | 821 | |
d62a17ae | 822 | new->area_id = area_id; |
823 | new->area_id_fmt = OSPF_AREA_ID_FMT_DOTTEDQUAD; | |
718e3744 | 824 | |
d62a17ae | 825 | new->external_routing = OSPF_AREA_DEFAULT; |
826 | new->default_cost = 1; | |
827 | new->auth_type = OSPF_AUTH_NULL; | |
718e3744 | 828 | |
d62a17ae | 829 | /* New LSDB init. */ |
830 | new->lsdb = ospf_lsdb_new(); | |
718e3744 | 831 | |
d62a17ae | 832 | /* Self-originated LSAs initialize. */ |
833 | new->router_lsa_self = NULL; | |
718e3744 | 834 | |
d62a17ae | 835 | ospf_opaque_type10_lsa_init(new); |
718e3744 | 836 | |
d62a17ae | 837 | new->oiflist = list_new(); |
838 | new->ranges = route_table_init(); | |
718e3744 | 839 | |
d62a17ae | 840 | if (area_id.s_addr == OSPF_AREA_BACKBONE) |
841 | ospf->backbone = new; | |
842 | ||
843 | return new; | |
718e3744 | 844 | } |
845 | ||
d62a17ae | 846 | static void ospf_area_free(struct ospf_area *area) |
718e3744 | 847 | { |
d62a17ae | 848 | struct route_node *rn; |
849 | struct ospf_lsa *lsa; | |
850 | ||
7f7f77a0 DS |
851 | ospf_opaque_type10_lsa_term(area); |
852 | ||
d62a17ae | 853 | /* Free LSDBs. */ |
996c9314 | 854 | LSDB_LOOP (ROUTER_LSDB(area), rn, lsa) |
044506e7 | 855 | ospf_discard_from_db(area->ospf, area->lsdb, lsa); |
996c9314 | 856 | LSDB_LOOP (NETWORK_LSDB(area), rn, lsa) |
044506e7 | 857 | ospf_discard_from_db(area->ospf, area->lsdb, lsa); |
996c9314 | 858 | LSDB_LOOP (SUMMARY_LSDB(area), rn, lsa) |
044506e7 | 859 | ospf_discard_from_db(area->ospf, area->lsdb, lsa); |
996c9314 | 860 | LSDB_LOOP (ASBR_SUMMARY_LSDB(area), rn, lsa) |
044506e7 | 861 | ospf_discard_from_db(area->ospf, area->lsdb, lsa); |
68980084 | 862 | |
996c9314 | 863 | LSDB_LOOP (NSSA_LSDB(area), rn, lsa) |
044506e7 | 864 | ospf_discard_from_db(area->ospf, area->lsdb, lsa); |
996c9314 | 865 | LSDB_LOOP (OPAQUE_AREA_LSDB(area), rn, lsa) |
044506e7 | 866 | ospf_discard_from_db(area->ospf, area->lsdb, lsa); |
996c9314 | 867 | LSDB_LOOP (OPAQUE_LINK_LSDB(area), rn, lsa) |
044506e7 | 868 | ospf_discard_from_db(area->ospf, area->lsdb, lsa); |
718e3744 | 869 | |
d62a17ae | 870 | ospf_lsdb_delete_all(area->lsdb); |
871 | ospf_lsdb_free(area->lsdb); | |
718e3744 | 872 | |
d62a17ae | 873 | ospf_lsa_unlock(&area->router_lsa_self); |
718e3744 | 874 | |
d62a17ae | 875 | route_table_finish(area->ranges); |
affe9e99 | 876 | list_delete_and_null(&area->oiflist); |
718e3744 | 877 | |
d62a17ae | 878 | if (EXPORT_NAME(area)) |
879 | free(EXPORT_NAME(area)); | |
718e3744 | 880 | |
d62a17ae | 881 | if (IMPORT_NAME(area)) |
882 | free(IMPORT_NAME(area)); | |
718e3744 | 883 | |
d62a17ae | 884 | /* Cancel timer. */ |
885 | OSPF_TIMER_OFF(area->t_stub_router); | |
886 | OSPF_TIMER_OFF(area->t_opaque_lsa_self); | |
718e3744 | 887 | |
d62a17ae | 888 | if (OSPF_IS_AREA_BACKBONE(area)) |
889 | area->ospf->backbone = NULL; | |
890 | ||
891 | XFREE(MTYPE_OSPF_AREA, area); | |
718e3744 | 892 | } |
893 | ||
d62a17ae | 894 | void ospf_area_check_free(struct ospf *ospf, struct in_addr area_id) |
718e3744 | 895 | { |
d62a17ae | 896 | struct ospf_area *area; |
718e3744 | 897 | |
d62a17ae | 898 | area = ospf_area_lookup_by_area_id(ospf, area_id); |
899 | if (area && listcount(area->oiflist) == 0 && area->ranges->top == NULL | |
900 | && area->shortcut_configured == OSPF_SHORTCUT_DEFAULT | |
901 | && area->external_routing == OSPF_AREA_DEFAULT | |
902 | && area->no_summary == 0 && area->default_cost == 1 | |
903 | && EXPORT_NAME(area) == NULL && IMPORT_NAME(area) == NULL | |
904 | && area->auth_type == OSPF_AUTH_NULL) { | |
905 | listnode_delete(ospf->areas, area); | |
906 | ospf_area_free(area); | |
907 | } | |
718e3744 | 908 | } |
909 | ||
d62a17ae | 910 | struct ospf_area *ospf_area_get(struct ospf *ospf, struct in_addr area_id) |
718e3744 | 911 | { |
d62a17ae | 912 | struct ospf_area *area; |
913 | ||
914 | area = ospf_area_lookup_by_area_id(ospf, area_id); | |
915 | if (!area) { | |
916 | area = ospf_area_new(ospf, area_id); | |
917 | listnode_add_sort(ospf->areas, area); | |
918 | ospf_check_abr_status(ospf); | |
919 | if (ospf->stub_router_admin_set | |
920 | == OSPF_STUB_ROUTER_ADMINISTRATIVE_SET) { | |
921 | SET_FLAG(area->stub_router_state, | |
922 | OSPF_AREA_ADMIN_STUB_ROUTED); | |
923 | } | |
924 | } | |
718e3744 | 925 | |
d62a17ae | 926 | return area; |
718e3744 | 927 | } |
928 | ||
d62a17ae | 929 | struct ospf_area *ospf_area_lookup_by_area_id(struct ospf *ospf, |
930 | struct in_addr area_id) | |
718e3744 | 931 | { |
d62a17ae | 932 | struct ospf_area *area; |
933 | struct listnode *node; | |
718e3744 | 934 | |
d62a17ae | 935 | for (ALL_LIST_ELEMENTS_RO(ospf->areas, node, area)) |
936 | if (IPV4_ADDR_SAME(&area->area_id, &area_id)) | |
937 | return area; | |
718e3744 | 938 | |
d62a17ae | 939 | return NULL; |
718e3744 | 940 | } |
941 | ||
d62a17ae | 942 | void ospf_area_add_if(struct ospf_area *area, struct ospf_interface *oi) |
718e3744 | 943 | { |
d62a17ae | 944 | listnode_add(area->oiflist, oi); |
718e3744 | 945 | } |
946 | ||
d62a17ae | 947 | void ospf_area_del_if(struct ospf_area *area, struct ospf_interface *oi) |
718e3744 | 948 | { |
d62a17ae | 949 | listnode_delete(area->oiflist, oi); |
718e3744 | 950 | } |
951 | ||
52c62ab8 | 952 | |
d62a17ae | 953 | static void add_ospf_interface(struct connected *co, struct ospf_area *area) |
953cde65 | 954 | { |
d62a17ae | 955 | struct ospf_interface *oi; |
953cde65 | 956 | |
d62a17ae | 957 | oi = ospf_if_new(area->ospf, co->ifp, co->address); |
958 | oi->connected = co; | |
953cde65 | 959 | |
d62a17ae | 960 | oi->area = area; |
953cde65 | 961 | |
d62a17ae | 962 | oi->params = ospf_lookup_if_params(co->ifp, oi->address->u.prefix4); |
963 | oi->output_cost = ospf_if_get_output_cost(oi); | |
953cde65 | 964 | |
d62a17ae | 965 | /* Relate ospf interface to ospf instance. */ |
966 | oi->ospf = area->ospf; | |
953cde65 | 967 | |
d62a17ae | 968 | /* update network type as interface flag */ |
969 | /* If network type is specified previously, | |
970 | skip network type setting. */ | |
971 | oi->type = IF_DEF_PARAMS(co->ifp)->type; | |
953cde65 | 972 | |
d62a17ae | 973 | /* Add pseudo neighbor. */ |
974 | ospf_nbr_self_reset(oi, oi->ospf->router_id); | |
953cde65 | 975 | |
d62a17ae | 976 | ospf_area_add_if(oi->area, oi); |
52c62ab8 | 977 | |
d62a17ae | 978 | /* |
979 | * if router_id is not configured, dont bring up | |
980 | * interfaces. | |
981 | * ospf_router_id_update() will call ospf_if_update | |
982 | * whenever r-id is configured instead. | |
983 | */ | |
984 | if ((area->ospf->router_id.s_addr != 0) && if_is_operative(co->ifp)) | |
985 | ospf_if_up(oi); | |
953cde65 JT |
986 | } |
987 | ||
988 | static void update_redistributed(struct ospf *ospf, int add_to_ospf) | |
989 | { | |
d62a17ae | 990 | struct route_node *rn; |
991 | struct external_info *ei; | |
992 | struct ospf_external *ext; | |
993 | ||
de1ac5fd CS |
994 | if (ospf_is_type_redistributed(ospf, ZEBRA_ROUTE_CONNECT, 0)) { |
995 | ext = ospf_external_lookup(ospf, ZEBRA_ROUTE_CONNECT, 0); | |
996 | if ((ext) && EXTERNAL_INFO(ext)) { | |
d62a17ae | 997 | for (rn = route_top(EXTERNAL_INFO(ext)); rn; |
998 | rn = route_next(rn)) { | |
de1ac5fd CS |
999 | ei = rn->info; |
1000 | if (ei == NULL) | |
1001 | continue; | |
1002 | ||
1003 | if (add_to_ospf) { | |
996c9314 LB |
1004 | if (ospf_external_info_find_lsa(ospf, |
1005 | &ei->p)) | |
de1ac5fd CS |
1006 | if (!ospf_distribute_check_connected( |
1007 | ospf, ei)) | |
1008 | ospf_external_lsa_flush( | |
996c9314 | 1009 | ospf, ei->type, |
de1ac5fd CS |
1010 | &ei->p, |
1011 | ei->ifindex /*, ei->nexthop */); | |
1012 | } else { | |
1013 | if (!ospf_external_info_find_lsa( | |
1014 | ospf, &ei->p)) | |
1015 | if (ospf_distribute_check_connected( | |
1016 | ospf, ei)) | |
1017 | ospf_external_lsa_originate( | |
996c9314 | 1018 | ospf, ei); |
d62a17ae | 1019 | } |
1020 | } | |
1021 | } | |
de1ac5fd | 1022 | } |
953cde65 JT |
1023 | } |
1024 | ||
718e3744 | 1025 | /* Config network statement related functions. */ |
d62a17ae | 1026 | static struct ospf_network *ospf_network_new(struct in_addr area_id) |
718e3744 | 1027 | { |
d62a17ae | 1028 | struct ospf_network *new; |
1029 | new = XCALLOC(MTYPE_OSPF_NETWORK, sizeof(struct ospf_network)); | |
718e3744 | 1030 | |
d62a17ae | 1031 | new->area_id = area_id; |
1032 | new->area_id_fmt = OSPF_AREA_ID_FMT_DOTTEDQUAD; | |
1033 | ||
1034 | return new; | |
718e3744 | 1035 | } |
1036 | ||
d62a17ae | 1037 | static void ospf_network_free(struct ospf *ospf, struct ospf_network *network) |
718e3744 | 1038 | { |
d62a17ae | 1039 | ospf_area_check_free(ospf, network->area_id); |
1040 | ospf_schedule_abr_task(ospf); | |
1041 | XFREE(MTYPE_OSPF_NETWORK, network); | |
718e3744 | 1042 | } |
1043 | ||
d62a17ae | 1044 | int ospf_network_set(struct ospf *ospf, struct prefix_ipv4 *p, |
1045 | struct in_addr area_id, int df) | |
718e3744 | 1046 | { |
d62a17ae | 1047 | struct ospf_network *network; |
1048 | struct ospf_area *area; | |
1049 | struct route_node *rn; | |
718e3744 | 1050 | |
d62a17ae | 1051 | rn = route_node_get(ospf->networks, (struct prefix *)p); |
1052 | if (rn->info) { | |
2b0a905a | 1053 | network = rn->info; |
d62a17ae | 1054 | route_unlock_node(rn); |
2b0a905a DW |
1055 | |
1056 | if (IPV4_ADDR_SAME(&area_id, &network->area_id)) { | |
1057 | return 1; | |
1058 | } else { | |
1059 | /* There is already same network statement. */ | |
1060 | return 0; | |
1061 | } | |
d62a17ae | 1062 | } |
718e3744 | 1063 | |
d62a17ae | 1064 | rn->info = network = ospf_network_new(area_id); |
1065 | network->area_id_fmt = df; | |
1066 | area = ospf_area_get(ospf, area_id); | |
1067 | ospf_area_display_format_set(ospf, area, df); | |
718e3744 | 1068 | |
d62a17ae | 1069 | /* Run network config now. */ |
1070 | ospf_network_run((struct prefix *)p, area); | |
718e3744 | 1071 | |
d62a17ae | 1072 | /* Update connected redistribute. */ |
1073 | update_redistributed(ospf, 1); /* interfaces possibly added */ | |
718e3744 | 1074 | |
d62a17ae | 1075 | ospf_area_check_free(ospf, area_id); |
718e3744 | 1076 | |
d62a17ae | 1077 | return 1; |
718e3744 | 1078 | } |
1079 | ||
d62a17ae | 1080 | int ospf_network_unset(struct ospf *ospf, struct prefix_ipv4 *p, |
1081 | struct in_addr area_id) | |
718e3744 | 1082 | { |
d62a17ae | 1083 | struct route_node *rn; |
1084 | struct ospf_network *network; | |
1085 | struct listnode *node, *nnode; | |
1086 | struct ospf_interface *oi; | |
718e3744 | 1087 | |
d62a17ae | 1088 | rn = route_node_lookup(ospf->networks, (struct prefix *)p); |
1089 | if (rn == NULL) | |
1090 | return 0; | |
718e3744 | 1091 | |
d62a17ae | 1092 | network = rn->info; |
1093 | route_unlock_node(rn); | |
1094 | if (!IPV4_ADDR_SAME(&area_id, &network->area_id)) | |
1095 | return 0; | |
718e3744 | 1096 | |
d62a17ae | 1097 | ospf_network_free(ospf, rn->info); |
1098 | rn->info = NULL; | |
1099 | route_unlock_node(rn); /* initial reference */ | |
718e3744 | 1100 | |
30c0daa4 | 1101 | /* Find interfaces that are not configured already. */ |
d62a17ae | 1102 | for (ALL_LIST_ELEMENTS(ospf->oiflist, node, nnode, oi)) { |
30c0daa4 | 1103 | |
996c9314 LB |
1104 | if (oi->type == OSPF_IFTYPE_VIRTUALLINK) |
1105 | continue; | |
30c0daa4 | 1106 | |
996c9314 | 1107 | ospf_network_run_subnet(ospf, oi->connected, NULL, NULL); |
d62a17ae | 1108 | } |
953cde65 | 1109 | |
d62a17ae | 1110 | /* Update connected redistribute. */ |
1111 | update_redistributed(ospf, 0); /* interfaces possibly removed */ | |
1112 | ospf_area_check_free(ospf, area_id); | |
1113 | ||
1114 | return 1; | |
953cde65 JT |
1115 | } |
1116 | ||
52c62ab8 JAG |
1117 | /* Ensure there's an OSPF instance, as "ip ospf area" enabled OSPF means |
1118 | * there might not be any 'router ospf' config. | |
1119 | * | |
1120 | * Otherwise, doesn't do anything different to ospf_if_update for now | |
1121 | */ | |
b5a8894d | 1122 | void ospf_interface_area_set(struct ospf *ospf, struct interface *ifp) |
953cde65 | 1123 | { |
b5a8894d CS |
1124 | if (!ospf) |
1125 | return; | |
d62a17ae | 1126 | |
1127 | ospf_if_update(ospf, ifp); | |
1128 | /* if_update does a update_redistributed */ | |
1129 | ||
1130 | return; | |
953cde65 JT |
1131 | } |
1132 | ||
b5a8894d | 1133 | void ospf_interface_area_unset(struct ospf *ospf, struct interface *ifp) |
953cde65 | 1134 | { |
d62a17ae | 1135 | struct route_node *rn_oi; |
953cde65 | 1136 | |
d62a17ae | 1137 | if (!ospf) |
1138 | return; /* Ospf not ready yet */ | |
953cde65 | 1139 | |
d62a17ae | 1140 | /* Find interfaces that may need to be removed. */ |
1141 | for (rn_oi = route_top(IF_OIFS(ifp)); rn_oi; | |
1142 | rn_oi = route_next(rn_oi)) { | |
b5a8894d | 1143 | struct ospf_interface *oi = NULL; |
d62a17ae | 1144 | |
1145 | if ((oi = rn_oi->info) == NULL) | |
1146 | continue; | |
1147 | ||
1148 | if (oi->type == OSPF_IFTYPE_VIRTUALLINK) | |
1149 | continue; | |
1150 | ||
1151 | ospf_network_run_subnet(ospf, oi->connected, NULL, NULL); | |
1152 | } | |
953cde65 | 1153 | |
d62a17ae | 1154 | /* Update connected redistribute. */ |
1155 | update_redistributed(ospf, 0); /* interfaces possibly removed */ | |
718e3744 | 1156 | } |
1157 | ||
570f7598 | 1158 | /* Check whether interface matches given network |
1159 | * returns: 1, true. 0, false | |
1160 | */ | |
d62a17ae | 1161 | static int ospf_network_match_iface(const struct connected *co, |
1162 | const struct prefix *net) | |
570f7598 | 1163 | { |
d62a17ae | 1164 | /* new approach: more elegant and conceptually clean */ |
1165 | return prefix_match_network_statement(net, CONNECTED_PREFIX(co)); | |
570f7598 | 1166 | } |
1167 | ||
d62a17ae | 1168 | static void ospf_update_interface_area(struct connected *co, |
1169 | struct ospf_area *area) | |
52c62ab8 | 1170 | { |
d62a17ae | 1171 | struct ospf_interface *oi = ospf_if_table_lookup(co->ifp, co->address); |
1172 | ||
1173 | /* nothing to be done case */ | |
1174 | if (oi && oi->area == area) { | |
1175 | return; | |
1176 | } | |
1177 | ||
1178 | if (oi) | |
1179 | ospf_if_free(oi); | |
1180 | ||
1181 | add_ospf_interface(co, area); | |
52c62ab8 JAG |
1182 | } |
1183 | ||
1184 | /* Run OSPF for the given subnet, taking into account the following | |
1185 | * possible sources of area configuration, in the given order of preference: | |
1186 | * | |
1187 | * - Whether there is interface+address specific area configuration | |
1188 | * - Whether there is a default area for the interface | |
1189 | * - Whether there is an area given as a parameter. | |
1190 | * - If no specific network prefix/area is supplied, whether there's | |
1191 | * a matching network configured. | |
1192 | */ | |
d62a17ae | 1193 | static void ospf_network_run_subnet(struct ospf *ospf, struct connected *co, |
1194 | struct prefix *p, | |
1195 | struct ospf_area *given_area) | |
1196 | { | |
1197 | struct ospf_interface *oi; | |
1198 | struct ospf_if_params *params; | |
1199 | struct ospf_area *area = NULL; | |
1200 | struct route_node *rn; | |
1201 | int configed = 0; | |
1202 | ||
1203 | if (CHECK_FLAG(co->flags, ZEBRA_IFA_SECONDARY)) | |
1204 | return; | |
1205 | ||
1206 | if (co->address->family != AF_INET) | |
1207 | return; | |
1208 | ||
1209 | /* Try determine the appropriate area for this interface + address | |
1210 | * Start by checking interface config | |
1211 | */ | |
1212 | params = ospf_lookup_if_params(co->ifp, co->address->u.prefix4); | |
1213 | if (params && OSPF_IF_PARAM_CONFIGURED(params, if_area)) | |
1214 | area = ospf_area_get(ospf, params->if_area); | |
1215 | else { | |
1216 | params = IF_DEF_PARAMS(co->ifp); | |
1217 | if (OSPF_IF_PARAM_CONFIGURED(params, if_area)) | |
1218 | area = ospf_area_get(ospf, params->if_area); | |
1219 | } | |
52c62ab8 | 1220 | |
d62a17ae | 1221 | /* If we've found an interface and/or addr specific area, then we're |
1222 | * done | |
1223 | */ | |
1224 | if (area) { | |
1225 | ospf_update_interface_area(co, area); | |
1226 | return; | |
1227 | } | |
718e3744 | 1228 | |
d62a17ae | 1229 | /* Otherwise, only remaining possibility is a matching network statement |
1230 | */ | |
1231 | if (p) { | |
1232 | assert(given_area != NULL); | |
1233 | ||
1234 | /* Which either was supplied as a parameter.. (e.g. cause a new | |
1235 | * network/area was just added).. | |
1236 | */ | |
1237 | if (p->family == co->address->family | |
1238 | && ospf_network_match_iface(co, p)) | |
1239 | ospf_update_interface_area(co, given_area); | |
1240 | ||
1241 | return; | |
1242 | } | |
1243 | ||
1244 | /* Else we have to search the existing network/area config to see | |
1245 | * if any match.. | |
1246 | */ | |
1247 | for (rn = route_top(ospf->networks); rn; rn = route_next(rn)) | |
1248 | if (rn->info != NULL && ospf_network_match_iface(co, &rn->p)) { | |
1249 | struct ospf_network *network = | |
1250 | (struct ospf_network *)rn->info; | |
1251 | area = ospf_area_get(ospf, network->area_id); | |
1252 | ospf_update_interface_area(co, area); | |
1253 | configed = 1; | |
1254 | } | |
1255 | ||
1256 | /* If the subnet isn't in any area, deconfigure */ | |
1257 | if (!configed && (oi = ospf_if_table_lookup(co->ifp, co->address))) | |
1258 | ospf_if_free(oi); | |
718e3744 | 1259 | } |
1260 | ||
d62a17ae | 1261 | static void ospf_network_run_interface(struct ospf *ospf, struct interface *ifp, |
1262 | struct prefix *p, | |
1263 | struct ospf_area *given_area) | |
718e3744 | 1264 | { |
d62a17ae | 1265 | struct listnode *cnode; |
1266 | struct connected *co; | |
1267 | ||
1268 | if (memcmp(ifp->name, "VLINK", 5) == 0) | |
1269 | return; | |
718e3744 | 1270 | |
d62a17ae | 1271 | /* Network prefix without area is nonsensical */ |
1272 | if (p) | |
1273 | assert(given_area != NULL); | |
1274 | ||
1275 | /* if interface prefix is match specified prefix, | |
1276 | then create socket and join multicast group. */ | |
1277 | for (ALL_LIST_ELEMENTS_RO(ifp->connected, cnode, co)) | |
1278 | ospf_network_run_subnet(ospf, co, p, given_area); | |
718e3744 | 1279 | } |
1280 | ||
d62a17ae | 1281 | static void ospf_network_run(struct prefix *p, struct ospf_area *area) |
718e3744 | 1282 | { |
f4e14fdb | 1283 | struct vrf *vrf = vrf_lookup_by_id(area->ospf->vrf_id); |
d62a17ae | 1284 | struct interface *ifp; |
d62a17ae | 1285 | |
1286 | /* Schedule Router ID Update. */ | |
1287 | if (area->ospf->router_id.s_addr == 0) | |
1288 | ospf_router_id_update(area->ospf); | |
718e3744 | 1289 | |
d62a17ae | 1290 | /* Get target interface. */ |
451fda4f | 1291 | FOR_ALL_INTERFACES (vrf, ifp) |
d62a17ae | 1292 | ospf_network_run_interface(area->ospf, ifp, p, area); |
718e3744 | 1293 | } |
1294 | ||
d62a17ae | 1295 | void ospf_ls_upd_queue_empty(struct ospf_interface *oi) |
1296 | { | |
1297 | struct route_node *rn; | |
1298 | struct listnode *node, *nnode; | |
1299 | struct list *lst; | |
1300 | struct ospf_lsa *lsa; | |
1301 | ||
1302 | /* empty ls update queue */ | |
1303 | for (rn = route_top(oi->ls_upd_queue); rn; rn = route_next(rn)) | |
1304 | if ((lst = (struct list *)rn->info)) { | |
1305 | for (ALL_LIST_ELEMENTS(lst, node, nnode, lsa)) | |
1306 | ospf_lsa_unlock(&lsa); /* oi->ls_upd_queue */ | |
affe9e99 | 1307 | list_delete_and_null(&lst); |
d62a17ae | 1308 | rn->info = NULL; |
1309 | } | |
1310 | ||
1311 | /* remove update event */ | |
1312 | if (oi->t_ls_upd_event) { | |
1313 | thread_cancel(oi->t_ls_upd_event); | |
1314 | oi->t_ls_upd_event = NULL; | |
1315 | } | |
1316 | } | |
6b0655a2 | 1317 | |
d62a17ae | 1318 | void ospf_if_update(struct ospf *ospf, struct interface *ifp) |
718e3744 | 1319 | { |
43b8d1d8 | 1320 | |
d62a17ae | 1321 | if (!ospf) |
43b8d1d8 | 1322 | return; |
b5a8894d CS |
1323 | |
1324 | if (IS_DEBUG_OSPF_EVENT) | |
996c9314 LB |
1325 | zlog_debug( |
1326 | "%s: interface %s ifp->vrf_id %u ospf vrf %s vrf_id %u router_id %s", | |
1327 | __PRETTY_FUNCTION__, ifp->name, ifp->vrf_id, | |
1328 | ospf_vrf_id_to_name(ospf->vrf_id), ospf->vrf_id, | |
1329 | inet_ntoa(ospf->router_id)); | |
d62a17ae | 1330 | |
1331 | /* OSPF must be ready. */ | |
1332 | if (!ospf_is_ready(ospf)) | |
1333 | return; | |
1334 | ||
1335 | ospf_network_run_interface(ospf, ifp, NULL, NULL); | |
1336 | ||
1337 | /* Update connected redistribute. */ | |
1338 | update_redistributed(ospf, 1); | |
1339 | } | |
718e3744 | 1340 | |
d62a17ae | 1341 | void ospf_remove_vls_through_area(struct ospf *ospf, struct ospf_area *area) |
718e3744 | 1342 | { |
d62a17ae | 1343 | struct listnode *node, *nnode; |
1344 | struct ospf_vl_data *vl_data; | |
718e3744 | 1345 | |
d62a17ae | 1346 | for (ALL_LIST_ELEMENTS(ospf->vlinks, node, nnode, vl_data)) |
1347 | if (IPV4_ADDR_SAME(&vl_data->vl_area_id, &area->area_id)) | |
1348 | ospf_vl_delete(ospf, vl_data); | |
1349 | } | |
718e3744 | 1350 | |
718e3744 | 1351 | |
d62a17ae | 1352 | static const struct message ospf_area_type_msg[] = { |
1353 | {OSPF_AREA_DEFAULT, "Default"}, | |
1354 | {OSPF_AREA_STUB, "Stub"}, | |
1355 | {OSPF_AREA_NSSA, "NSSA"}, | |
1356 | {0}}; | |
718e3744 | 1357 | |
d62a17ae | 1358 | static void ospf_area_type_set(struct ospf_area *area, int type) |
1359 | { | |
1360 | struct listnode *node; | |
1361 | struct ospf_interface *oi; | |
1362 | ||
1363 | if (area->external_routing == type) { | |
1364 | if (IS_DEBUG_OSPF_EVENT) | |
1365 | zlog_debug("Area[%s]: Types are the same, ignored.", | |
1366 | inet_ntoa(area->area_id)); | |
1367 | return; | |
1368 | } | |
718e3744 | 1369 | |
d62a17ae | 1370 | area->external_routing = type; |
1371 | ||
1372 | if (IS_DEBUG_OSPF_EVENT) | |
1373 | zlog_debug("Area[%s]: Configured as %s", | |
1374 | inet_ntoa(area->area_id), | |
1375 | lookup_msg(ospf_area_type_msg, type, NULL)); | |
1376 | ||
1377 | switch (area->external_routing) { | |
1378 | case OSPF_AREA_DEFAULT: | |
1379 | for (ALL_LIST_ELEMENTS_RO(area->oiflist, node, oi)) | |
1380 | if (oi->nbr_self != NULL) { | |
1381 | UNSET_FLAG(oi->nbr_self->options, | |
1382 | OSPF_OPTION_NP); | |
1383 | SET_FLAG(oi->nbr_self->options, OSPF_OPTION_E); | |
1384 | } | |
1385 | break; | |
1386 | case OSPF_AREA_STUB: | |
1387 | for (ALL_LIST_ELEMENTS_RO(area->oiflist, node, oi)) | |
1388 | if (oi->nbr_self != NULL) { | |
1389 | if (IS_DEBUG_OSPF_EVENT) | |
1390 | zlog_debug( | |
1391 | "setting options on %s accordingly", | |
1392 | IF_NAME(oi)); | |
1393 | UNSET_FLAG(oi->nbr_self->options, | |
1394 | OSPF_OPTION_NP); | |
1395 | UNSET_FLAG(oi->nbr_self->options, | |
1396 | OSPF_OPTION_E); | |
1397 | if (IS_DEBUG_OSPF_EVENT) | |
1398 | zlog_debug("options set on %s: %x", | |
1399 | IF_NAME(oi), OPTIONS(oi)); | |
1400 | } | |
1401 | break; | |
1402 | case OSPF_AREA_NSSA: | |
1403 | for (ALL_LIST_ELEMENTS_RO(area->oiflist, node, oi)) | |
1404 | if (oi->nbr_self != NULL) { | |
1405 | zlog_debug( | |
1406 | "setting nssa options on %s accordingly", | |
1407 | IF_NAME(oi)); | |
1408 | UNSET_FLAG(oi->nbr_self->options, | |
1409 | OSPF_OPTION_E); | |
1410 | SET_FLAG(oi->nbr_self->options, OSPF_OPTION_NP); | |
1411 | zlog_debug("options set on %s: %x", IF_NAME(oi), | |
1412 | OPTIONS(oi)); | |
1413 | } | |
1414 | break; | |
1415 | default: | |
1416 | break; | |
1417 | } | |
1418 | ||
1419 | ospf_router_lsa_update_area(area); | |
1420 | ospf_schedule_abr_task(area->ospf); | |
718e3744 | 1421 | } |
1422 | ||
d62a17ae | 1423 | int ospf_area_shortcut_set(struct ospf *ospf, struct ospf_area *area, int mode) |
718e3744 | 1424 | { |
d62a17ae | 1425 | if (area->shortcut_configured == mode) |
1426 | return 0; | |
718e3744 | 1427 | |
d62a17ae | 1428 | area->shortcut_configured = mode; |
1429 | ospf_router_lsa_update_area(area); | |
1430 | ospf_schedule_abr_task(ospf); | |
718e3744 | 1431 | |
d62a17ae | 1432 | ospf_area_check_free(ospf, area->area_id); |
718e3744 | 1433 | |
d62a17ae | 1434 | return 1; |
718e3744 | 1435 | } |
1436 | ||
d62a17ae | 1437 | int ospf_area_shortcut_unset(struct ospf *ospf, struct ospf_area *area) |
718e3744 | 1438 | { |
d62a17ae | 1439 | area->shortcut_configured = OSPF_SHORTCUT_DEFAULT; |
1440 | ospf_router_lsa_update_area(area); | |
1441 | ospf_area_check_free(ospf, area->area_id); | |
1442 | ospf_schedule_abr_task(ospf); | |
718e3744 | 1443 | |
d62a17ae | 1444 | return 1; |
718e3744 | 1445 | } |
1446 | ||
d62a17ae | 1447 | static int ospf_area_vlink_count(struct ospf *ospf, struct ospf_area *area) |
718e3744 | 1448 | { |
d62a17ae | 1449 | struct ospf_vl_data *vl; |
1450 | struct listnode *node; | |
1451 | int count = 0; | |
718e3744 | 1452 | |
d62a17ae | 1453 | for (ALL_LIST_ELEMENTS_RO(ospf->vlinks, node, vl)) |
1454 | if (IPV4_ADDR_SAME(&vl->vl_area_id, &area->area_id)) | |
1455 | count++; | |
718e3744 | 1456 | |
d62a17ae | 1457 | return count; |
718e3744 | 1458 | } |
1459 | ||
d62a17ae | 1460 | int ospf_area_display_format_set(struct ospf *ospf, struct ospf_area *area, |
1461 | int df) | |
86573dcb | 1462 | { |
d62a17ae | 1463 | area->area_id_fmt = df; |
86573dcb | 1464 | |
d62a17ae | 1465 | return 1; |
86573dcb QY |
1466 | } |
1467 | ||
d62a17ae | 1468 | int ospf_area_stub_set(struct ospf *ospf, struct in_addr area_id) |
718e3744 | 1469 | { |
d62a17ae | 1470 | struct ospf_area *area; |
718e3744 | 1471 | |
d62a17ae | 1472 | area = ospf_area_get(ospf, area_id); |
1473 | if (ospf_area_vlink_count(ospf, area)) | |
1474 | return 0; | |
718e3744 | 1475 | |
d62a17ae | 1476 | if (area->external_routing != OSPF_AREA_STUB) |
1477 | ospf_area_type_set(area, OSPF_AREA_STUB); | |
718e3744 | 1478 | |
d62a17ae | 1479 | return 1; |
718e3744 | 1480 | } |
1481 | ||
d62a17ae | 1482 | int ospf_area_stub_unset(struct ospf *ospf, struct in_addr area_id) |
718e3744 | 1483 | { |
d62a17ae | 1484 | struct ospf_area *area; |
718e3744 | 1485 | |
d62a17ae | 1486 | area = ospf_area_lookup_by_area_id(ospf, area_id); |
1487 | if (area == NULL) | |
1488 | return 1; | |
718e3744 | 1489 | |
d62a17ae | 1490 | if (area->external_routing == OSPF_AREA_STUB) |
1491 | ospf_area_type_set(area, OSPF_AREA_DEFAULT); | |
718e3744 | 1492 | |
d62a17ae | 1493 | ospf_area_check_free(ospf, area_id); |
718e3744 | 1494 | |
d62a17ae | 1495 | return 1; |
718e3744 | 1496 | } |
1497 | ||
d62a17ae | 1498 | int ospf_area_no_summary_set(struct ospf *ospf, struct in_addr area_id) |
718e3744 | 1499 | { |
d62a17ae | 1500 | struct ospf_area *area; |
718e3744 | 1501 | |
d62a17ae | 1502 | area = ospf_area_get(ospf, area_id); |
1503 | area->no_summary = 1; | |
718e3744 | 1504 | |
d62a17ae | 1505 | return 1; |
718e3744 | 1506 | } |
1507 | ||
d62a17ae | 1508 | int ospf_area_no_summary_unset(struct ospf *ospf, struct in_addr area_id) |
718e3744 | 1509 | { |
d62a17ae | 1510 | struct ospf_area *area; |
718e3744 | 1511 | |
d62a17ae | 1512 | area = ospf_area_lookup_by_area_id(ospf, area_id); |
1513 | if (area == NULL) | |
1514 | return 0; | |
718e3744 | 1515 | |
d62a17ae | 1516 | area->no_summary = 0; |
1517 | ospf_area_check_free(ospf, area_id); | |
718e3744 | 1518 | |
d62a17ae | 1519 | return 1; |
718e3744 | 1520 | } |
1521 | ||
7ef56a73 | 1522 | int ospf_area_nssa_no_summary_set(struct ospf *ospf, struct in_addr area_id) |
718e3744 | 1523 | { |
d62a17ae | 1524 | struct ospf_area *area; |
718e3744 | 1525 | |
d62a17ae | 1526 | area = ospf_area_get(ospf, area_id); |
1527 | if (ospf_area_vlink_count(ospf, area)) | |
1528 | return 0; | |
718e3744 | 1529 | |
d62a17ae | 1530 | if (area->external_routing != OSPF_AREA_NSSA) { |
1531 | ospf_area_type_set(area, OSPF_AREA_NSSA); | |
1532 | ospf->anyNSSA++; | |
7ef56a73 | 1533 | area->NSSATranslatorRole = OSPF_NSSA_ROLE_CANDIDATE; |
d62a17ae | 1534 | } |
718e3744 | 1535 | |
7ef56a73 | 1536 | ospf_area_no_summary_set(ospf, area_id); |
084c7844 | 1537 | |
d62a17ae | 1538 | return 1; |
718e3744 | 1539 | } |
1540 | ||
7ef56a73 CS |
1541 | int ospf_area_nssa_set(struct ospf *ospf, struct in_addr area_id) |
1542 | { | |
1543 | struct ospf_area *area; | |
1544 | ||
1545 | area = ospf_area_get(ospf, area_id); | |
1546 | if (ospf_area_vlink_count(ospf, area)) | |
1547 | return 0; | |
1548 | ||
1549 | if (area->external_routing != OSPF_AREA_NSSA) { | |
1550 | ospf_area_type_set(area, OSPF_AREA_NSSA); | |
1551 | ospf->anyNSSA++; | |
1552 | ||
1553 | /* set NSSA area defaults */ | |
1554 | area->no_summary = 0; | |
1555 | area->NSSATranslatorRole = OSPF_NSSA_ROLE_CANDIDATE; | |
1556 | area->NSSATranslatorState = OSPF_NSSA_TRANSLATE_DISABLED; | |
1557 | area->NSSATranslatorStabilityInterval = | |
1558 | OSPF_NSSA_TRANS_STABLE_DEFAULT; | |
1559 | } | |
1560 | return 1; | |
1561 | } | |
1562 | ||
1563 | int ospf_area_nssa_unset(struct ospf *ospf, struct in_addr area_id, int argc) | |
718e3744 | 1564 | { |
d62a17ae | 1565 | struct ospf_area *area; |
718e3744 | 1566 | |
d62a17ae | 1567 | area = ospf_area_lookup_by_area_id(ospf, area_id); |
1568 | if (area == NULL) | |
1569 | return 0; | |
718e3744 | 1570 | |
7ef56a73 CS |
1571 | /* argc < 5 -> 'no area x nssa' */ |
1572 | if (argc < 5 && area->external_routing == OSPF_AREA_NSSA) { | |
d62a17ae | 1573 | ospf->anyNSSA--; |
7ef56a73 CS |
1574 | /* set NSSA area defaults */ |
1575 | area->no_summary = 0; | |
1576 | area->NSSATranslatorRole = OSPF_NSSA_ROLE_CANDIDATE; | |
1577 | area->NSSATranslatorState = OSPF_NSSA_TRANSLATE_DISABLED; | |
1578 | area->NSSATranslatorStabilityInterval = | |
1579 | OSPF_NSSA_TRANS_STABLE_DEFAULT; | |
d62a17ae | 1580 | ospf_area_type_set(area, OSPF_AREA_DEFAULT); |
7ef56a73 CS |
1581 | } else { |
1582 | area->NSSATranslatorRole = OSPF_NSSA_ROLE_CANDIDATE; | |
d62a17ae | 1583 | } |
718e3744 | 1584 | |
d62a17ae | 1585 | ospf_area_check_free(ospf, area_id); |
718e3744 | 1586 | |
d62a17ae | 1587 | return 1; |
718e3744 | 1588 | } |
1589 | ||
d62a17ae | 1590 | int ospf_area_nssa_translator_role_set(struct ospf *ospf, |
1591 | struct in_addr area_id, int role) | |
718e3744 | 1592 | { |
d62a17ae | 1593 | struct ospf_area *area; |
718e3744 | 1594 | |
d62a17ae | 1595 | area = ospf_area_lookup_by_area_id(ospf, area_id); |
1596 | if (area == NULL) | |
1597 | return 0; | |
718e3744 | 1598 | |
d62a17ae | 1599 | area->NSSATranslatorRole = role; |
718e3744 | 1600 | |
d62a17ae | 1601 | return 1; |
718e3744 | 1602 | } |
1603 | ||
075e12f5 | 1604 | #if 0 |
4dadc291 | 1605 | /* XXX: unused? Leave for symmetry? */ |
1606 | static int | |
718e3744 | 1607 | ospf_area_nssa_translator_role_unset (struct ospf *ospf, |
1608 | struct in_addr area_id) | |
1609 | { | |
1610 | struct ospf_area *area; | |
1611 | ||
68980084 | 1612 | area = ospf_area_lookup_by_area_id (ospf, area_id); |
718e3744 | 1613 | if (area == NULL) |
1614 | return 0; | |
1615 | ||
084c7844 | 1616 | area->NSSATranslatorRole = OSPF_NSSA_ROLE_CANDIDATE; |
718e3744 | 1617 | |
68980084 | 1618 | ospf_area_check_free (ospf, area_id); |
718e3744 | 1619 | |
1620 | return 1; | |
1621 | } | |
075e12f5 | 1622 | #endif |
718e3744 | 1623 | |
d62a17ae | 1624 | int ospf_area_export_list_set(struct ospf *ospf, struct ospf_area *area, |
1625 | const char *list_name) | |
718e3744 | 1626 | { |
d62a17ae | 1627 | struct access_list *list; |
1628 | list = access_list_lookup(AFI_IP, list_name); | |
718e3744 | 1629 | |
d62a17ae | 1630 | EXPORT_LIST(area) = list; |
718e3744 | 1631 | |
d62a17ae | 1632 | if (EXPORT_NAME(area)) |
1633 | free(EXPORT_NAME(area)); | |
718e3744 | 1634 | |
d62a17ae | 1635 | EXPORT_NAME(area) = strdup(list_name); |
1636 | ospf_schedule_abr_task(ospf); | |
718e3744 | 1637 | |
d62a17ae | 1638 | return 1; |
718e3744 | 1639 | } |
1640 | ||
d62a17ae | 1641 | int ospf_area_export_list_unset(struct ospf *ospf, struct ospf_area *area) |
718e3744 | 1642 | { |
1643 | ||
d62a17ae | 1644 | EXPORT_LIST(area) = 0; |
718e3744 | 1645 | |
d62a17ae | 1646 | if (EXPORT_NAME(area)) |
1647 | free(EXPORT_NAME(area)); | |
718e3744 | 1648 | |
d62a17ae | 1649 | EXPORT_NAME(area) = NULL; |
718e3744 | 1650 | |
d62a17ae | 1651 | ospf_area_check_free(ospf, area->area_id); |
718e3744 | 1652 | |
d62a17ae | 1653 | ospf_schedule_abr_task(ospf); |
1654 | ||
1655 | return 1; | |
718e3744 | 1656 | } |
1657 | ||
d62a17ae | 1658 | int ospf_area_import_list_set(struct ospf *ospf, struct ospf_area *area, |
1659 | const char *name) | |
718e3744 | 1660 | { |
d62a17ae | 1661 | struct access_list *list; |
1662 | list = access_list_lookup(AFI_IP, name); | |
718e3744 | 1663 | |
d62a17ae | 1664 | IMPORT_LIST(area) = list; |
718e3744 | 1665 | |
d62a17ae | 1666 | if (IMPORT_NAME(area)) |
1667 | free(IMPORT_NAME(area)); | |
718e3744 | 1668 | |
d62a17ae | 1669 | IMPORT_NAME(area) = strdup(name); |
1670 | ospf_schedule_abr_task(ospf); | |
718e3744 | 1671 | |
d62a17ae | 1672 | return 1; |
718e3744 | 1673 | } |
1674 | ||
d62a17ae | 1675 | int ospf_area_import_list_unset(struct ospf *ospf, struct ospf_area *area) |
718e3744 | 1676 | { |
d62a17ae | 1677 | IMPORT_LIST(area) = 0; |
718e3744 | 1678 | |
d62a17ae | 1679 | if (IMPORT_NAME(area)) |
1680 | free(IMPORT_NAME(area)); | |
718e3744 | 1681 | |
d62a17ae | 1682 | IMPORT_NAME(area) = NULL; |
1683 | ospf_area_check_free(ospf, area->area_id); | |
718e3744 | 1684 | |
d62a17ae | 1685 | ospf_schedule_abr_task(ospf); |
718e3744 | 1686 | |
d62a17ae | 1687 | return 1; |
718e3744 | 1688 | } |
1689 | ||
d62a17ae | 1690 | int ospf_timers_refresh_set(struct ospf *ospf, int interval) |
718e3744 | 1691 | { |
d62a17ae | 1692 | int time_left; |
718e3744 | 1693 | |
d62a17ae | 1694 | if (ospf->lsa_refresh_interval == interval) |
1695 | return 1; | |
718e3744 | 1696 | |
d62a17ae | 1697 | time_left = ospf->lsa_refresh_interval |
1698 | - (monotime(NULL) - ospf->lsa_refresher_started); | |
718e3744 | 1699 | |
d62a17ae | 1700 | if (time_left > interval) { |
1701 | OSPF_TIMER_OFF(ospf->t_lsa_refresher); | |
1702 | thread_add_timer(master, ospf_lsa_refresh_walker, ospf, | |
1703 | interval, &ospf->t_lsa_refresher); | |
1704 | } | |
1705 | ospf->lsa_refresh_interval = interval; | |
1706 | ||
1707 | return 1; | |
718e3744 | 1708 | } |
1709 | ||
d62a17ae | 1710 | int ospf_timers_refresh_unset(struct ospf *ospf) |
718e3744 | 1711 | { |
d62a17ae | 1712 | int time_left; |
718e3744 | 1713 | |
d62a17ae | 1714 | time_left = ospf->lsa_refresh_interval |
1715 | - (monotime(NULL) - ospf->lsa_refresher_started); | |
718e3744 | 1716 | |
d62a17ae | 1717 | if (time_left > OSPF_LSA_REFRESH_INTERVAL_DEFAULT) { |
1718 | OSPF_TIMER_OFF(ospf->t_lsa_refresher); | |
1719 | ospf->t_lsa_refresher = NULL; | |
1720 | thread_add_timer(master, ospf_lsa_refresh_walker, ospf, | |
1721 | OSPF_LSA_REFRESH_INTERVAL_DEFAULT, | |
1722 | &ospf->t_lsa_refresher); | |
1723 | } | |
718e3744 | 1724 | |
d62a17ae | 1725 | ospf->lsa_refresh_interval = OSPF_LSA_REFRESH_INTERVAL_DEFAULT; |
718e3744 | 1726 | |
d62a17ae | 1727 | return 1; |
718e3744 | 1728 | } |
1729 | ||
6b0655a2 | 1730 | |
d62a17ae | 1731 | static struct ospf_nbr_nbma *ospf_nbr_nbma_new(void) |
718e3744 | 1732 | { |
d62a17ae | 1733 | struct ospf_nbr_nbma *nbr_nbma; |
718e3744 | 1734 | |
d62a17ae | 1735 | nbr_nbma = XCALLOC(MTYPE_OSPF_NEIGHBOR_STATIC, |
1736 | sizeof(struct ospf_nbr_nbma)); | |
718e3744 | 1737 | |
d62a17ae | 1738 | nbr_nbma->priority = OSPF_NEIGHBOR_PRIORITY_DEFAULT; |
1739 | nbr_nbma->v_poll = OSPF_POLL_INTERVAL_DEFAULT; | |
718e3744 | 1740 | |
d62a17ae | 1741 | return nbr_nbma; |
718e3744 | 1742 | } |
1743 | ||
d62a17ae | 1744 | static void ospf_nbr_nbma_free(struct ospf_nbr_nbma *nbr_nbma) |
718e3744 | 1745 | { |
d62a17ae | 1746 | XFREE(MTYPE_OSPF_NEIGHBOR_STATIC, nbr_nbma); |
718e3744 | 1747 | } |
1748 | ||
d62a17ae | 1749 | static void ospf_nbr_nbma_delete(struct ospf *ospf, |
1750 | struct ospf_nbr_nbma *nbr_nbma) | |
718e3744 | 1751 | { |
d62a17ae | 1752 | struct route_node *rn; |
1753 | struct prefix_ipv4 p; | |
718e3744 | 1754 | |
d62a17ae | 1755 | p.family = AF_INET; |
1756 | p.prefix = nbr_nbma->addr; | |
1757 | p.prefixlen = IPV4_MAX_BITLEN; | |
718e3744 | 1758 | |
d62a17ae | 1759 | rn = route_node_lookup(ospf->nbr_nbma, (struct prefix *)&p); |
1760 | if (rn) { | |
1761 | ospf_nbr_nbma_free(rn->info); | |
1762 | rn->info = NULL; | |
1763 | route_unlock_node(rn); | |
1764 | route_unlock_node(rn); | |
1765 | } | |
718e3744 | 1766 | } |
1767 | ||
d62a17ae | 1768 | static void ospf_nbr_nbma_down(struct ospf_nbr_nbma *nbr_nbma) |
718e3744 | 1769 | { |
d62a17ae | 1770 | OSPF_TIMER_OFF(nbr_nbma->t_poll); |
718e3744 | 1771 | |
d62a17ae | 1772 | if (nbr_nbma->nbr) { |
1773 | nbr_nbma->nbr->nbr_nbma = NULL; | |
1774 | OSPF_NSM_EVENT_EXECUTE(nbr_nbma->nbr, NSM_KillNbr); | |
1775 | } | |
718e3744 | 1776 | |
d62a17ae | 1777 | if (nbr_nbma->oi) |
1778 | listnode_delete(nbr_nbma->oi->nbr_nbma, nbr_nbma); | |
718e3744 | 1779 | } |
1780 | ||
d62a17ae | 1781 | static void ospf_nbr_nbma_add(struct ospf_nbr_nbma *nbr_nbma, |
1782 | struct ospf_interface *oi) | |
718e3744 | 1783 | { |
d62a17ae | 1784 | struct ospf_neighbor *nbr; |
1785 | struct route_node *rn; | |
1786 | struct prefix p; | |
718e3744 | 1787 | |
d62a17ae | 1788 | if (oi->type != OSPF_IFTYPE_NBMA) |
1789 | return; | |
718e3744 | 1790 | |
d62a17ae | 1791 | if (nbr_nbma->nbr != NULL) |
1792 | return; | |
718e3744 | 1793 | |
d62a17ae | 1794 | if (IPV4_ADDR_SAME(&oi->nbr_self->address.u.prefix4, &nbr_nbma->addr)) |
1795 | return; | |
718e3744 | 1796 | |
d62a17ae | 1797 | nbr_nbma->oi = oi; |
1798 | listnode_add(oi->nbr_nbma, nbr_nbma); | |
718e3744 | 1799 | |
d62a17ae | 1800 | /* Get neighbor information from table. */ |
1801 | p.family = AF_INET; | |
1802 | p.prefixlen = IPV4_MAX_BITLEN; | |
1803 | p.u.prefix4 = nbr_nbma->addr; | |
718e3744 | 1804 | |
d62a17ae | 1805 | rn = route_node_get(oi->nbrs, (struct prefix *)&p); |
1806 | if (rn->info) { | |
1807 | nbr = rn->info; | |
1808 | nbr->nbr_nbma = nbr_nbma; | |
1809 | nbr_nbma->nbr = nbr; | |
718e3744 | 1810 | |
d62a17ae | 1811 | route_unlock_node(rn); |
1812 | } else { | |
1813 | nbr = rn->info = ospf_nbr_new(oi); | |
1814 | nbr->state = NSM_Down; | |
1815 | nbr->src = nbr_nbma->addr; | |
1816 | nbr->nbr_nbma = nbr_nbma; | |
1817 | nbr->priority = nbr_nbma->priority; | |
1818 | nbr->address = p; | |
718e3744 | 1819 | |
d62a17ae | 1820 | nbr_nbma->nbr = nbr; |
1821 | ||
1822 | OSPF_NSM_EVENT_EXECUTE(nbr, NSM_Start); | |
1823 | } | |
718e3744 | 1824 | } |
1825 | ||
d62a17ae | 1826 | void ospf_nbr_nbma_if_update(struct ospf *ospf, struct ospf_interface *oi) |
718e3744 | 1827 | { |
d62a17ae | 1828 | struct ospf_nbr_nbma *nbr_nbma; |
1829 | struct route_node *rn; | |
1830 | struct prefix_ipv4 p; | |
718e3744 | 1831 | |
d62a17ae | 1832 | if (oi->type != OSPF_IFTYPE_NBMA) |
1833 | return; | |
718e3744 | 1834 | |
d62a17ae | 1835 | for (rn = route_top(ospf->nbr_nbma); rn; rn = route_next(rn)) |
1836 | if ((nbr_nbma = rn->info)) | |
1837 | if (nbr_nbma->oi == NULL && nbr_nbma->nbr == NULL) { | |
1838 | p.family = AF_INET; | |
1839 | p.prefix = nbr_nbma->addr; | |
1840 | p.prefixlen = IPV4_MAX_BITLEN; | |
718e3744 | 1841 | |
d62a17ae | 1842 | if (prefix_match(oi->address, |
1843 | (struct prefix *)&p)) | |
1844 | ospf_nbr_nbma_add(nbr_nbma, oi); | |
1845 | } | |
718e3744 | 1846 | } |
1847 | ||
d62a17ae | 1848 | struct ospf_nbr_nbma *ospf_nbr_nbma_lookup(struct ospf *ospf, |
1849 | struct in_addr nbr_addr) | |
718e3744 | 1850 | { |
d62a17ae | 1851 | struct route_node *rn; |
1852 | struct prefix_ipv4 p; | |
718e3744 | 1853 | |
d62a17ae | 1854 | p.family = AF_INET; |
1855 | p.prefix = nbr_addr; | |
1856 | p.prefixlen = IPV4_MAX_BITLEN; | |
718e3744 | 1857 | |
d62a17ae | 1858 | rn = route_node_lookup(ospf->nbr_nbma, (struct prefix *)&p); |
1859 | if (rn) { | |
1860 | route_unlock_node(rn); | |
1861 | return rn->info; | |
1862 | } | |
1863 | return NULL; | |
718e3744 | 1864 | } |
1865 | ||
d62a17ae | 1866 | struct ospf_nbr_nbma *ospf_nbr_nbma_lookup_next(struct ospf *ospf, |
1867 | struct in_addr *addr, int first) | |
718e3744 | 1868 | { |
1869 | #if 0 | |
1870 | struct ospf_nbr_nbma *nbr_nbma; | |
52dc7ee6 | 1871 | struct listnode *node; |
718e3744 | 1872 | #endif |
1873 | ||
d62a17ae | 1874 | if (ospf == NULL) |
1875 | return NULL; | |
718e3744 | 1876 | |
1877 | #if 0 | |
1eb8ef25 | 1878 | for (ALL_LIST_ELEMENTS_RO (ospf->nbr_nbma, node, nbr_nbma)) |
718e3744 | 1879 | { |
718e3744 | 1880 | if (first) |
1881 | { | |
1882 | *addr = nbr_nbma->addr; | |
1883 | return nbr_nbma; | |
1884 | } | |
1885 | else if (ntohl (nbr_nbma->addr.s_addr) > ntohl (addr->s_addr)) | |
1886 | { | |
1887 | *addr = nbr_nbma->addr; | |
1888 | return nbr_nbma; | |
1889 | } | |
1890 | } | |
1891 | #endif | |
d62a17ae | 1892 | return NULL; |
718e3744 | 1893 | } |
1894 | ||
d62a17ae | 1895 | int ospf_nbr_nbma_set(struct ospf *ospf, struct in_addr nbr_addr) |
718e3744 | 1896 | { |
d62a17ae | 1897 | struct ospf_nbr_nbma *nbr_nbma; |
1898 | struct ospf_interface *oi; | |
1899 | struct prefix_ipv4 p; | |
1900 | struct route_node *rn; | |
1901 | struct listnode *node; | |
718e3744 | 1902 | |
d62a17ae | 1903 | nbr_nbma = ospf_nbr_nbma_lookup(ospf, nbr_addr); |
1904 | if (nbr_nbma) | |
1905 | return 0; | |
718e3744 | 1906 | |
d62a17ae | 1907 | nbr_nbma = ospf_nbr_nbma_new(); |
1908 | nbr_nbma->addr = nbr_addr; | |
718e3744 | 1909 | |
d62a17ae | 1910 | p.family = AF_INET; |
1911 | p.prefix = nbr_addr; | |
1912 | p.prefixlen = IPV4_MAX_BITLEN; | |
718e3744 | 1913 | |
d62a17ae | 1914 | rn = route_node_get(ospf->nbr_nbma, (struct prefix *)&p); |
1915 | if (rn->info) | |
1916 | route_unlock_node(rn); | |
1917 | rn->info = nbr_nbma; | |
718e3744 | 1918 | |
d62a17ae | 1919 | for (ALL_LIST_ELEMENTS_RO(ospf->oiflist, node, oi)) { |
1920 | if (oi->type == OSPF_IFTYPE_NBMA) | |
1921 | if (prefix_match(oi->address, (struct prefix *)&p)) { | |
1922 | ospf_nbr_nbma_add(nbr_nbma, oi); | |
1923 | break; | |
1924 | } | |
1925 | } | |
718e3744 | 1926 | |
d62a17ae | 1927 | return 1; |
718e3744 | 1928 | } |
1929 | ||
d62a17ae | 1930 | int ospf_nbr_nbma_unset(struct ospf *ospf, struct in_addr nbr_addr) |
718e3744 | 1931 | { |
d62a17ae | 1932 | struct ospf_nbr_nbma *nbr_nbma; |
718e3744 | 1933 | |
d62a17ae | 1934 | nbr_nbma = ospf_nbr_nbma_lookup(ospf, nbr_addr); |
1935 | if (nbr_nbma == NULL) | |
1936 | return 0; | |
718e3744 | 1937 | |
d62a17ae | 1938 | ospf_nbr_nbma_down(nbr_nbma); |
1939 | ospf_nbr_nbma_delete(ospf, nbr_nbma); | |
718e3744 | 1940 | |
d62a17ae | 1941 | return 1; |
718e3744 | 1942 | } |
1943 | ||
d62a17ae | 1944 | int ospf_nbr_nbma_priority_set(struct ospf *ospf, struct in_addr nbr_addr, |
d7c0a89a | 1945 | uint8_t priority) |
718e3744 | 1946 | { |
d62a17ae | 1947 | struct ospf_nbr_nbma *nbr_nbma; |
718e3744 | 1948 | |
d62a17ae | 1949 | nbr_nbma = ospf_nbr_nbma_lookup(ospf, nbr_addr); |
1950 | if (nbr_nbma == NULL) | |
1951 | return 0; | |
718e3744 | 1952 | |
d62a17ae | 1953 | if (nbr_nbma->priority != priority) |
1954 | nbr_nbma->priority = priority; | |
718e3744 | 1955 | |
d62a17ae | 1956 | return 1; |
718e3744 | 1957 | } |
1958 | ||
d62a17ae | 1959 | int ospf_nbr_nbma_priority_unset(struct ospf *ospf, struct in_addr nbr_addr) |
718e3744 | 1960 | { |
d62a17ae | 1961 | struct ospf_nbr_nbma *nbr_nbma; |
718e3744 | 1962 | |
d62a17ae | 1963 | nbr_nbma = ospf_nbr_nbma_lookup(ospf, nbr_addr); |
1964 | if (nbr_nbma == NULL) | |
1965 | return 0; | |
718e3744 | 1966 | |
d62a17ae | 1967 | if (nbr_nbma != OSPF_NEIGHBOR_PRIORITY_DEFAULT) |
1968 | nbr_nbma->priority = OSPF_NEIGHBOR_PRIORITY_DEFAULT; | |
718e3744 | 1969 | |
d62a17ae | 1970 | return 1; |
718e3744 | 1971 | } |
1972 | ||
d62a17ae | 1973 | int ospf_nbr_nbma_poll_interval_set(struct ospf *ospf, struct in_addr nbr_addr, |
1974 | unsigned int interval) | |
718e3744 | 1975 | { |
d62a17ae | 1976 | struct ospf_nbr_nbma *nbr_nbma; |
718e3744 | 1977 | |
d62a17ae | 1978 | nbr_nbma = ospf_nbr_nbma_lookup(ospf, nbr_addr); |
1979 | if (nbr_nbma == NULL) | |
1980 | return 0; | |
718e3744 | 1981 | |
d62a17ae | 1982 | if (nbr_nbma->v_poll != interval) { |
1983 | nbr_nbma->v_poll = interval; | |
1984 | if (nbr_nbma->oi && ospf_if_is_up(nbr_nbma->oi)) { | |
1985 | OSPF_TIMER_OFF(nbr_nbma->t_poll); | |
1986 | OSPF_POLL_TIMER_ON(nbr_nbma->t_poll, ospf_poll_timer, | |
1987 | nbr_nbma->v_poll); | |
1988 | } | |
718e3744 | 1989 | } |
718e3744 | 1990 | |
d62a17ae | 1991 | return 1; |
718e3744 | 1992 | } |
1993 | ||
d62a17ae | 1994 | int ospf_nbr_nbma_poll_interval_unset(struct ospf *ospf, struct in_addr addr) |
718e3744 | 1995 | { |
d62a17ae | 1996 | struct ospf_nbr_nbma *nbr_nbma; |
718e3744 | 1997 | |
d62a17ae | 1998 | nbr_nbma = ospf_nbr_nbma_lookup(ospf, addr); |
1999 | if (nbr_nbma == NULL) | |
2000 | return 0; | |
718e3744 | 2001 | |
d62a17ae | 2002 | if (nbr_nbma->v_poll != OSPF_POLL_INTERVAL_DEFAULT) |
2003 | nbr_nbma->v_poll = OSPF_POLL_INTERVAL_DEFAULT; | |
718e3744 | 2004 | |
d62a17ae | 2005 | return 1; |
718e3744 | 2006 | } |
2007 | ||
d62a17ae | 2008 | void ospf_master_init(struct thread_master *master) |
718e3744 | 2009 | { |
d62a17ae | 2010 | memset(&ospf_master, 0, sizeof(struct ospf_master)); |
020709f9 | 2011 | |
d62a17ae | 2012 | om = &ospf_master; |
2013 | om->ospf = list_new(); | |
2014 | om->master = master; | |
020709f9 | 2015 | } |
b5a8894d CS |
2016 | |
2017 | /* Link OSPF instance to VRF. */ | |
2018 | void ospf_vrf_link(struct ospf *ospf, struct vrf *vrf) | |
2019 | { | |
2020 | ospf->vrf_id = vrf->vrf_id; | |
2021 | if (vrf->info != (void *)ospf) | |
2022 | vrf->info = (void *)ospf; | |
2023 | } | |
2024 | ||
2025 | /* Unlink OSPF instance from VRF. */ | |
2026 | void ospf_vrf_unlink(struct ospf *ospf, struct vrf *vrf) | |
2027 | { | |
2028 | if (vrf->info == (void *)ospf) | |
2029 | vrf->info = NULL; | |
2030 | ospf->vrf_id = VRF_UNKNOWN; | |
2031 | } | |
2032 | ||
2033 | /* This is hook function for vrf create called as part of vrf_init */ | |
2034 | static int ospf_vrf_new(struct vrf *vrf) | |
2035 | { | |
2036 | if (IS_DEBUG_OSPF_EVENT) | |
fe3da9e7 | 2037 | zlog_debug("%s: VRF Created: %s(%u)", __PRETTY_FUNCTION__, |
b5a8894d CS |
2038 | vrf->name, vrf->vrf_id); |
2039 | ||
2040 | return 0; | |
2041 | } | |
2042 | ||
2043 | /* This is hook function for vrf delete call as part of vrf_init */ | |
2044 | static int ospf_vrf_delete(struct vrf *vrf) | |
2045 | { | |
2046 | if (IS_DEBUG_OSPF_EVENT) | |
fe3da9e7 | 2047 | zlog_debug("%s: VRF Deletion: %s(%u)", __PRETTY_FUNCTION__, |
b5a8894d CS |
2048 | vrf->name, vrf->vrf_id); |
2049 | ||
2050 | return 0; | |
2051 | } | |
2052 | ||
3d9f7302 PZ |
2053 | static void ospf_set_redist_vrf_bitmaps(struct ospf *ospf) |
2054 | { | |
2055 | int type; | |
2056 | struct list *red_list; | |
2057 | ||
2058 | for (type = 0; type < ZEBRA_ROUTE_MAX; type++) { | |
2059 | red_list = ospf->redist[type]; | |
2060 | if (!red_list) | |
2061 | continue; | |
2062 | if (IS_DEBUG_OSPF_EVENT) | |
2063 | zlog_debug( | |
2064 | "%s: setting redist vrf %d bitmap for type %d", | |
2065 | __func__, ospf->vrf_id, type); | |
2066 | vrf_bitmap_set(zclient->redist[AFI_IP][type], ospf->vrf_id); | |
2067 | } | |
2068 | } | |
2069 | ||
b5a8894d CS |
2070 | /* Enable OSPF VRF instance */ |
2071 | static int ospf_vrf_enable(struct vrf *vrf) | |
2072 | { | |
2073 | struct ospf *ospf = NULL; | |
7d206035 | 2074 | vrf_id_t old_vrf_id; |
3c0eb8fa | 2075 | int ret = 0; |
b5a8894d CS |
2076 | |
2077 | if (IS_DEBUG_OSPF_EVENT) | |
996c9314 LB |
2078 | zlog_debug("%s: VRF %s id %u enabled", __PRETTY_FUNCTION__, |
2079 | vrf->name, vrf->vrf_id); | |
b5a8894d CS |
2080 | |
2081 | ospf = ospf_lookup_by_name(vrf->name); | |
2082 | if (ospf) { | |
2083 | old_vrf_id = ospf->vrf_id; | |
2084 | /* We have instance configured, link to VRF and make it "up". */ | |
2085 | ospf_vrf_link(ospf, vrf); | |
2086 | if (IS_DEBUG_OSPF_EVENT) | |
996c9314 LB |
2087 | zlog_debug( |
2088 | "%s: ospf linked to vrf %s vrf_id %u (old id %u)", | |
2089 | __PRETTY_FUNCTION__, vrf->name, ospf->vrf_id, | |
2090 | old_vrf_id); | |
b5a8894d CS |
2091 | |
2092 | if (old_vrf_id != ospf->vrf_id) { | |
e7503eab | 2093 | if (ospfd_privs.change(ZPRIVS_RAISE)) { |
996c9314 LB |
2094 | zlog_err( |
2095 | "ospf_sock_init: could not raise privs, %s", | |
2096 | safe_strerror(errno)); | |
e7503eab | 2097 | } |
3d9f7302 PZ |
2098 | |
2099 | /* stop zebra redist to us for old vrf */ | |
2100 | zclient_send_dereg_requests(zclient, old_vrf_id); | |
2101 | ||
2102 | ospf_set_redist_vrf_bitmaps(ospf); | |
2103 | ||
2104 | /* start zebra redist to us for new vrf */ | |
2105 | ospf_zebra_vrf_register(ospf); | |
2106 | ||
3c0eb8fa | 2107 | ret = ospf_sock_init(ospf); |
e7503eab | 2108 | if (ospfd_privs.change(ZPRIVS_LOWER)) { |
996c9314 LB |
2109 | zlog_err( |
2110 | "ospf_sock_init: could not lower privs, %s", | |
2111 | safe_strerror(errno)); | |
e7503eab | 2112 | } |
3c0eb8fa PG |
2113 | if (ret < 0 || ospf->fd <= 0) |
2114 | return 0; | |
996c9314 LB |
2115 | thread_add_read(master, ospf_read, ospf, ospf->fd, |
2116 | &ospf->t_read); | |
b5a8894d CS |
2117 | ospf->oi_running = 1; |
2118 | ospf_router_id_update(ospf); | |
2119 | } | |
2120 | } | |
2121 | ||
2122 | return 0; | |
2123 | } | |
2124 | ||
2125 | /* Disable OSPF VRF instance */ | |
2126 | static int ospf_vrf_disable(struct vrf *vrf) | |
2127 | { | |
2128 | struct ospf *ospf = NULL; | |
2129 | vrf_id_t old_vrf_id = VRF_UNKNOWN; | |
2130 | ||
2131 | if (vrf->vrf_id == VRF_DEFAULT) | |
2132 | return 0; | |
2133 | ||
2134 | if (IS_DEBUG_OSPF_EVENT) | |
996c9314 LB |
2135 | zlog_debug("%s: VRF %s id %d disabled.", __PRETTY_FUNCTION__, |
2136 | vrf->name, vrf->vrf_id); | |
b5a8894d CS |
2137 | |
2138 | ospf = ospf_lookup_by_name(vrf->name); | |
2139 | if (ospf) { | |
2140 | old_vrf_id = ospf->vrf_id; | |
2141 | ||
2142 | /* We have instance configured, unlink | |
2143 | * from VRF and make it "down". | |
2144 | */ | |
2145 | ospf_vrf_unlink(ospf, vrf); | |
2146 | ospf->oi_running = 0; | |
2147 | if (IS_DEBUG_OSPF_EVENT) | |
2148 | zlog_debug("%s: ospf old_vrf_id %d unlinked", | |
996c9314 | 2149 | __PRETTY_FUNCTION__, old_vrf_id); |
3c0eb8fa PG |
2150 | thread_cancel(ospf->t_read); |
2151 | close(ospf->fd); | |
2152 | ospf->fd = -1; | |
b5a8894d CS |
2153 | } |
2154 | ||
2155 | /* Note: This is a callback, the VRF will be deleted by the caller. */ | |
2156 | return 0; | |
2157 | } | |
2158 | ||
2159 | void ospf_vrf_init(void) | |
2160 | { | |
996c9314 LB |
2161 | vrf_init(ospf_vrf_new, ospf_vrf_enable, ospf_vrf_disable, |
2162 | ospf_vrf_delete); | |
b5a8894d CS |
2163 | } |
2164 | ||
2165 | void ospf_vrf_terminate(void) | |
2166 | { | |
2167 | vrf_terminate(); | |
2168 | } | |
2169 | ||
2170 | const char *ospf_vrf_id_to_name(vrf_id_t vrf_id) | |
2171 | { | |
2172 | struct vrf *vrf = vrf_lookup_by_id(vrf_id); | |
2173 | ||
2174 | return vrf ? vrf->name : "NIL"; | |
2175 | } |