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718e3744 | 1 | /* OSPF version 2 daemon program. |
896014f4 DL |
2 | * Copyright (C) 1999, 2000 Toshiaki Takada |
3 | * | |
4 | * This file is part of GNU Zebra. | |
5 | * | |
6 | * GNU Zebra is free software; you can redistribute it and/or modify it | |
7 | * under the terms of the GNU General Public License as published by the | |
8 | * Free Software Foundation; either version 2, or (at your option) any | |
9 | * later version. | |
10 | * | |
11 | * GNU Zebra is distributed in the hope that it will be useful, but | |
12 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
14 | * General Public License for more details. | |
15 | * | |
16 | * You should have received a copy of the GNU General Public License along | |
17 | * with this program; see the file COPYING; if not, write to the Free Software | |
18 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA | |
19 | */ | |
718e3744 | 20 | |
21 | #include <zebra.h> | |
22 | ||
23 | #include "thread.h" | |
24 | #include "vty.h" | |
25 | #include "command.h" | |
26 | #include "linklist.h" | |
27 | #include "prefix.h" | |
28 | #include "table.h" | |
29 | #include "if.h" | |
30 | #include "memory.h" | |
31 | #include "stream.h" | |
32 | #include "log.h" | |
d62a17ae | 33 | #include "sockunion.h" /* for inet_aton () */ |
718e3744 | 34 | #include "zclient.h" |
35 | #include "plist.h" | |
f102e75f | 36 | #include "sockopt.h" |
567b877d | 37 | #include "bfd.h" |
8879bd22 | 38 | #include "libfrr.h" |
8efe88ea | 39 | #include "defaults.h" |
718e3744 | 40 | |
41 | #include "ospfd/ospfd.h" | |
42 | #include "ospfd/ospf_network.h" | |
43 | #include "ospfd/ospf_interface.h" | |
44 | #include "ospfd/ospf_ism.h" | |
45 | #include "ospfd/ospf_asbr.h" | |
46 | #include "ospfd/ospf_lsa.h" | |
47 | #include "ospfd/ospf_lsdb.h" | |
48 | #include "ospfd/ospf_neighbor.h" | |
49 | #include "ospfd/ospf_nsm.h" | |
50 | #include "ospfd/ospf_spf.h" | |
51 | #include "ospfd/ospf_packet.h" | |
52 | #include "ospfd/ospf_dump.h" | |
53 | #include "ospfd/ospf_zebra.h" | |
54 | #include "ospfd/ospf_abr.h" | |
55 | #include "ospfd/ospf_flood.h" | |
56 | #include "ospfd/ospf_route.h" | |
57 | #include "ospfd/ospf_ase.h" | |
58 | ||
6b0655a2 | 59 | |
ae19c240 | 60 | DEFINE_QOBJ_TYPE(ospf) |
edd7c245 | 61 | |
020709f9 | 62 | /* OSPF process wide configuration. */ |
63 | static struct ospf_master ospf_master; | |
64 | ||
65 | /* OSPF process wide configuration pointer to export. */ | |
66 | struct ospf_master *om; | |
718e3744 | 67 | |
68 | extern struct zclient *zclient; | |
18a6dce6 | 69 | extern struct in_addr router_id_zebra; |
e7503eab | 70 | extern struct zebra_privs_t ospfd_privs; |
718e3744 | 71 | |
6b0655a2 | 72 | |
d62a17ae | 73 | static void ospf_remove_vls_through_area(struct ospf *, struct ospf_area *); |
74 | static void ospf_network_free(struct ospf *, struct ospf_network *); | |
75 | static void ospf_area_free(struct ospf_area *); | |
76 | static void ospf_network_run(struct prefix *, struct ospf_area *); | |
77 | static void ospf_network_run_interface(struct ospf *, struct interface *, | |
78 | struct prefix *, struct ospf_area *); | |
79 | static void ospf_network_run_subnet(struct ospf *, struct connected *, | |
80 | struct prefix *, struct ospf_area *); | |
81 | static int ospf_network_match_iface(const struct connected *, | |
82 | const struct prefix *); | |
83 | static void ospf_finish_final(struct ospf *); | |
718e3744 | 84 | |
718e3744 | 85 | #define OSPF_EXTERNAL_LSA_ORIGINATE_DELAY 1 |
6b0655a2 | 86 | |
d62a17ae | 87 | void ospf_router_id_update(struct ospf *ospf) |
718e3744 | 88 | { |
f4e14fdb | 89 | struct vrf *vrf = vrf_lookup_by_id(ospf->vrf_id); |
d62a17ae | 90 | struct in_addr router_id, router_id_old; |
91 | struct ospf_interface *oi; | |
92 | struct interface *ifp; | |
93 | struct listnode *node; | |
94 | int type; | |
2c19a6ec | 95 | |
d62a17ae | 96 | if (!ospf->oi_running) { |
97 | if (IS_DEBUG_OSPF_EVENT) | |
98 | zlog_debug( | |
99 | "Router ospf not configured -- Router-ID update postponed"); | |
100 | return; | |
25a346eb | 101 | } |
718e3744 | 102 | |
d62a17ae | 103 | if (IS_DEBUG_OSPF_EVENT) |
104 | zlog_debug("Router-ID[OLD:%s]: Update", | |
105 | inet_ntoa(ospf->router_id)); | |
106 | ||
107 | router_id_old = ospf->router_id; | |
108 | ||
109 | /* Select the router ID based on these priorities: | |
110 | 1. Statically assigned router ID is always the first choice. | |
111 | 2. If there is no statically assigned router ID, then try to stick | |
112 | with the most recent value, since changing router ID's is very | |
113 | disruptive. | |
114 | 3. Last choice: just go with whatever the zebra daemon recommends. | |
115 | */ | |
116 | if (ospf->router_id_static.s_addr != 0) | |
117 | router_id = ospf->router_id_static; | |
118 | else if (ospf->router_id.s_addr != 0) | |
119 | router_id = ospf->router_id; | |
120 | else | |
121 | router_id = router_id_zebra; | |
122 | ||
b5a8894d CS |
123 | if (IS_DEBUG_OSPF_EVENT) |
124 | zlog_debug("Router-ID[OLD:%s]: Update to %s", | |
125 | inet_ntoa(ospf->router_id), | |
126 | inet_ntoa(router_id_old)); | |
d62a17ae | 127 | |
128 | if (!IPV4_ADDR_SAME(&router_id_old, &router_id)) { | |
129 | ||
130 | for (ALL_LIST_ELEMENTS_RO(ospf->oiflist, node, oi)) { | |
131 | /* Some nbrs are identified by router_id, these needs | |
132 | * to be rebuilt. Possible optimization would be to do | |
133 | * oi->nbr_self->router_id = router_id for | |
134 | * !(virtual | ptop) links | |
135 | */ | |
136 | ospf_nbr_self_reset(oi, router_id); | |
137 | } | |
138 | ||
139 | /* If AS-external-LSA is queued, then flush those LSAs. */ | |
140 | if (router_id_old.s_addr == 0 && ospf->external_origin) { | |
141 | /* Originate each redistributed external route. */ | |
142 | for (type = 0; type < ZEBRA_ROUTE_MAX; type++) | |
143 | if (ospf->external_origin & (1 << type)) | |
144 | thread_add_event( | |
145 | master, | |
146 | ospf_external_lsa_originate_timer, | |
147 | ospf, type, NULL); | |
148 | /* Originate Deafult. */ | |
149 | if (ospf->external_origin & (1 << ZEBRA_ROUTE_MAX)) | |
150 | thread_add_event(master, | |
151 | ospf_default_originate_timer, | |
152 | ospf, 0, NULL); | |
153 | ||
154 | ospf->external_origin = 0; | |
155 | } | |
156 | ||
157 | /* Flush (inline) all external LSAs based on the OSPF_LSA_SELF | |
158 | * flag */ | |
159 | if (ospf->lsdb) { | |
160 | struct route_node *rn; | |
161 | struct ospf_lsa *lsa; | |
162 | ||
163 | LSDB_LOOP(EXTERNAL_LSDB(ospf), rn, lsa) | |
164 | if (IS_LSA_SELF(lsa)) | |
165 | ospf_lsa_flush_schedule(ospf, lsa); | |
166 | } | |
167 | ||
168 | ospf->router_id = router_id; | |
169 | if (IS_DEBUG_OSPF_EVENT) | |
170 | zlog_debug("Router-ID[NEW:%s]: Update", | |
171 | inet_ntoa(ospf->router_id)); | |
172 | ||
173 | /* Flush (inline) all external LSAs which now match the new | |
174 | router-id, | |
175 | need to adjust the OSPF_LSA_SELF flag, so the flush doesnt | |
176 | hit | |
177 | asserts in ospf_refresher_unregister_lsa(). This step is | |
178 | needed | |
179 | because the current quagga code does look-up for | |
180 | self-originated LSAs | |
181 | based on the self router-id alone but expects OSPF_LSA_SELF | |
182 | to be | |
183 | properly set */ | |
184 | if (ospf->lsdb) { | |
185 | struct route_node *rn; | |
186 | struct ospf_lsa *lsa; | |
187 | ||
188 | LSDB_LOOP(EXTERNAL_LSDB(ospf), rn, lsa) | |
189 | { | |
190 | /* AdvRouter and Router ID is the same. */ | |
191 | if (IPV4_ADDR_SAME(&lsa->data->adv_router, | |
192 | &ospf->router_id)) { | |
193 | SET_FLAG(lsa->flags, | |
194 | OSPF_LSA_SELF_CHECKED); | |
195 | SET_FLAG(lsa->flags, OSPF_LSA_SELF); | |
196 | ospf_lsa_flush_schedule(ospf, lsa); | |
197 | } | |
198 | } | |
199 | } | |
200 | ||
201 | /* Originate each redistributed external route. */ | |
202 | for (type = 0; type < ZEBRA_ROUTE_MAX; type++) | |
203 | thread_add_event(master, | |
204 | ospf_external_lsa_originate_timer, | |
205 | ospf, type, NULL); | |
206 | thread_add_event(master, ospf_default_originate_timer, ospf, 0, | |
207 | NULL); | |
208 | ||
209 | /* update router-lsa's for each area */ | |
210 | ospf_router_lsa_update(ospf); | |
211 | ||
212 | /* update ospf_interface's */ | |
451fda4f | 213 | FOR_ALL_INTERFACES (vrf, ifp) |
d62a17ae | 214 | ospf_if_update(ospf, ifp); |
718e3744 | 215 | } |
718e3744 | 216 | } |
6b0655a2 | 217 | |
718e3744 | 218 | /* For OSPF area sort by area id. */ |
d62a17ae | 219 | static int ospf_area_id_cmp(struct ospf_area *a1, struct ospf_area *a2) |
718e3744 | 220 | { |
d62a17ae | 221 | if (ntohl(a1->area_id.s_addr) > ntohl(a2->area_id.s_addr)) |
222 | return 1; | |
223 | if (ntohl(a1->area_id.s_addr) < ntohl(a2->area_id.s_addr)) | |
224 | return -1; | |
225 | return 0; | |
718e3744 | 226 | } |
227 | ||
228 | /* Allocate new ospf structure. */ | |
b5a8894d | 229 | static struct ospf *ospf_new(u_short instance, const char *name) |
718e3744 | 230 | { |
d62a17ae | 231 | int i; |
b5a8894d | 232 | struct vrf *vrf = NULL; |
718e3744 | 233 | |
d62a17ae | 234 | struct ospf *new = XCALLOC(MTYPE_OSPF_TOP, sizeof(struct ospf)); |
718e3744 | 235 | |
d62a17ae | 236 | new->instance = instance; |
237 | new->router_id.s_addr = htonl(0); | |
238 | new->router_id_static.s_addr = htonl(0); | |
718e3744 | 239 | |
b5a8894d CS |
240 | if (name) { |
241 | new->vrf_id = VRF_UNKNOWN; | |
242 | /* Freed in ospf_finish_final */ | |
243 | new->name = XSTRDUP(MTYPE_OSPF_TOP, name); | |
244 | vrf = vrf_lookup_by_name(new->name); | |
245 | if (IS_DEBUG_OSPF_EVENT) | |
246 | zlog_debug("%s: Create new ospf instance with vrf_name %s vrf_id %d", | |
247 | __PRETTY_FUNCTION__, name, new->vrf_id); | |
248 | if (vrf) | |
249 | ospf_vrf_link(new, vrf); | |
250 | } else { | |
251 | new->vrf_id = VRF_DEFAULT; | |
252 | vrf = vrf_lookup_by_id(VRF_DEFAULT); | |
253 | ospf_vrf_link(new, vrf); | |
254 | } | |
255 | ospf_zebra_vrf_register(new); | |
256 | ||
d62a17ae | 257 | new->abr_type = OSPF_ABR_DEFAULT; |
258 | new->oiflist = list_new(); | |
259 | new->vlinks = list_new(); | |
260 | new->areas = list_new(); | |
261 | new->areas->cmp = (int (*)(void *, void *))ospf_area_id_cmp; | |
262 | new->networks = route_table_init(); | |
263 | new->nbr_nbma = route_table_init(); | |
718e3744 | 264 | |
d62a17ae | 265 | new->lsdb = ospf_lsdb_new(); |
718e3744 | 266 | |
d62a17ae | 267 | new->default_originate = DEFAULT_ORIGINATE_NONE; |
718e3744 | 268 | |
d62a17ae | 269 | new->passive_interface_default = OSPF_IF_ACTIVE; |
4ba4fc85 | 270 | |
d62a17ae | 271 | new->new_external_route = route_table_init(); |
272 | new->old_external_route = route_table_init(); | |
273 | new->external_lsas = route_table_init(); | |
274 | ||
275 | new->stub_router_startup_time = OSPF_STUB_ROUTER_UNCONFIGURED; | |
276 | new->stub_router_shutdown_time = OSPF_STUB_ROUTER_UNCONFIGURED; | |
277 | new->stub_router_admin_set = OSPF_STUB_ROUTER_ADMINISTRATIVE_UNSET; | |
278 | ||
279 | /* Distribute parameter init. */ | |
280 | for (i = 0; i <= ZEBRA_ROUTE_MAX; i++) { | |
281 | new->dtag[i] = 0; | |
282 | } | |
283 | new->default_metric = -1; | |
284 | new->ref_bandwidth = OSPF_DEFAULT_REF_BANDWIDTH; | |
285 | ||
286 | /* LSA timers */ | |
287 | new->min_ls_interval = OSPF_MIN_LS_INTERVAL; | |
288 | new->min_ls_arrival = OSPF_MIN_LS_ARRIVAL; | |
289 | ||
290 | /* SPF timer value init. */ | |
291 | new->spf_delay = OSPF_SPF_DELAY_DEFAULT; | |
292 | new->spf_holdtime = OSPF_SPF_HOLDTIME_DEFAULT; | |
293 | new->spf_max_holdtime = OSPF_SPF_MAX_HOLDTIME_DEFAULT; | |
294 | new->spf_hold_multiplier = 1; | |
295 | ||
296 | /* MaxAge init. */ | |
297 | new->maxage_delay = OSPF_LSA_MAXAGE_REMOVE_DELAY_DEFAULT; | |
298 | new->maxage_lsa = route_table_init(); | |
299 | new->t_maxage_walker = NULL; | |
300 | thread_add_timer(master, ospf_lsa_maxage_walker, new, | |
301 | OSPF_LSA_MAXAGE_CHECK_INTERVAL, &new->t_maxage_walker); | |
302 | ||
303 | /* Distance table init. */ | |
304 | new->distance_table = route_table_init(); | |
305 | ||
306 | new->lsa_refresh_queue.index = 0; | |
307 | new->lsa_refresh_interval = OSPF_LSA_REFRESH_INTERVAL_DEFAULT; | |
308 | new->t_lsa_refresher = NULL; | |
309 | thread_add_timer(master, ospf_lsa_refresh_walker, new, | |
310 | new->lsa_refresh_interval, &new->t_lsa_refresher); | |
311 | new->lsa_refresher_started = monotime(NULL); | |
312 | ||
e7503eab | 313 | if ((ospf_sock_init(new)) < 0) { |
d62a17ae | 314 | zlog_err( |
315 | "ospf_new: fatal error: ospf_sock_init was unable to open " | |
316 | "a socket"); | |
317 | exit(1); | |
318 | } | |
319 | if ((new->ibuf = stream_new(OSPF_MAX_PACKET_SIZE + 1)) == NULL) { | |
320 | zlog_err( | |
321 | "ospf_new: fatal error: stream_new(%u) failed allocating ibuf", | |
322 | OSPF_MAX_PACKET_SIZE + 1); | |
323 | exit(1); | |
324 | } | |
325 | new->t_read = NULL; | |
326 | thread_add_read(master, ospf_read, new, new->fd, &new->t_read); | |
327 | new->oi_write_q = list_new(); | |
328 | new->write_oi_count = OSPF_WRITE_INTERFACE_COUNT_DEFAULT; | |
329 | ||
330 | /* Enable "log-adjacency-changes" */ | |
8efe88ea | 331 | #if DFLT_OSPF_LOG_ADJACENCY_CHANGES |
d62a17ae | 332 | SET_FLAG(new->config, OSPF_LOG_ADJACENCY_CHANGES); |
8efe88ea | 333 | #endif |
3e7c8d04 | 334 | |
d62a17ae | 335 | QOBJ_REG(new, ospf); |
ae19c240 | 336 | |
d62a17ae | 337 | return new; |
718e3744 | 338 | } |
339 | ||
d62a17ae | 340 | struct ospf *ospf_lookup_instance(u_short instance) |
7c8ff89e | 341 | { |
d62a17ae | 342 | struct ospf *ospf; |
343 | struct listnode *node, *nnode; | |
7c8ff89e | 344 | |
d62a17ae | 345 | if (listcount(om->ospf) == 0) |
346 | return NULL; | |
7c8ff89e | 347 | |
d62a17ae | 348 | for (ALL_LIST_ELEMENTS(om->ospf, node, nnode, ospf)) |
349 | if ((ospf->instance == 0 && instance == 0) | |
350 | || (ospf->instance && instance | |
351 | && ospf->instance == instance)) | |
352 | return ospf; | |
7c8ff89e | 353 | |
d62a17ae | 354 | return NULL; |
7c8ff89e DS |
355 | } |
356 | ||
d62a17ae | 357 | static int ospf_is_ready(struct ospf *ospf) |
52c62ab8 | 358 | { |
d62a17ae | 359 | /* OSPF must be on and Router-ID must be configured. */ |
360 | if (!ospf || ospf->router_id.s_addr == 0) | |
361 | return 0; | |
362 | ||
363 | return 1; | |
52c62ab8 JAG |
364 | } |
365 | ||
d62a17ae | 366 | static void ospf_add(struct ospf *ospf) |
020709f9 | 367 | { |
d62a17ae | 368 | listnode_add(om->ospf, ospf); |
020709f9 | 369 | } |
718e3744 | 370 | |
d62a17ae | 371 | static void ospf_delete(struct ospf *ospf) |
020709f9 | 372 | { |
d62a17ae | 373 | listnode_delete(om->ospf, ospf); |
020709f9 | 374 | } |
68980084 | 375 | |
b5a8894d CS |
376 | struct ospf *ospf_lookup_by_inst_name(u_short instance, const char *name) |
377 | { | |
378 | struct ospf *ospf = NULL; | |
379 | struct listnode *node, *nnode; | |
380 | ||
381 | for (ALL_LIST_ELEMENTS(om->ospf, node, nnode, ospf)) { | |
382 | if ((ospf->instance == instance) && | |
383 | ((ospf->name == NULL && name == NULL) || | |
384 | (ospf->name && name && strcmp(ospf->name, name) == 0))) | |
385 | return ospf; | |
386 | } | |
387 | return NULL; | |
388 | } | |
389 | ||
390 | struct ospf *ospf_get(u_short instance, const char *name) | |
020709f9 | 391 | { |
d62a17ae | 392 | struct ospf *ospf; |
020709f9 | 393 | |
b5a8894d CS |
394 | /* vrf name provided call inst and name based api |
395 | * in case of no name pass default ospf instance */ | |
396 | if (name) | |
397 | ospf = ospf_lookup_by_inst_name(instance, name); | |
398 | else | |
399 | ospf = ospf_lookup_by_vrf_id(VRF_DEFAULT); | |
400 | ||
d62a17ae | 401 | if (ospf == NULL) { |
b5a8894d | 402 | ospf = ospf_new(instance, name); |
d62a17ae | 403 | ospf_add(ospf); |
7c8ff89e | 404 | |
d62a17ae | 405 | if (ospf->router_id_static.s_addr == 0) |
406 | ospf_router_id_update(ospf); | |
7c8ff89e | 407 | |
d62a17ae | 408 | ospf_opaque_type11_lsa_init(ospf); |
409 | } | |
7c8ff89e | 410 | |
d62a17ae | 411 | return ospf; |
7c8ff89e DS |
412 | } |
413 | ||
d62a17ae | 414 | struct ospf *ospf_get_instance(u_short instance) |
7c8ff89e | 415 | { |
d62a17ae | 416 | struct ospf *ospf; |
7c8ff89e | 417 | |
d62a17ae | 418 | ospf = ospf_lookup_instance(instance); |
419 | if (ospf == NULL) { | |
b5a8894d | 420 | ospf = ospf_new(instance, NULL /* VRF_DEFAULT*/); |
d62a17ae | 421 | ospf_add(ospf); |
020709f9 | 422 | |
b5a8894d CS |
423 | if (ospf->router_id_static.s_addr == 0) { |
424 | if (vrf_lookup_by_id(ospf->vrf_id)) | |
425 | ospf_router_id_update(ospf); | |
426 | else { | |
427 | if (IS_DEBUG_OSPF_EVENT) | |
428 | zlog_debug("%s: ospf VRF (id %d) is not active yet, skip router id update" | |
429 | , __PRETTY_FUNCTION__, | |
430 | ospf->vrf_id); | |
431 | } | |
d62a17ae | 432 | ospf_router_id_update(ospf); |
b5a8894d | 433 | } |
718e3744 | 434 | |
d62a17ae | 435 | ospf_opaque_type11_lsa_init(ospf); |
436 | } | |
68980084 | 437 | |
d62a17ae | 438 | return ospf; |
718e3744 | 439 | } |
6b0655a2 | 440 | |
b5a8894d CS |
441 | struct ospf *ospf_lookup_by_vrf_id(vrf_id_t vrf_id) |
442 | { | |
443 | struct vrf *vrf = NULL; | |
444 | ||
445 | vrf = vrf_lookup_by_id(vrf_id); | |
446 | if (!vrf) | |
447 | return NULL; | |
448 | return (vrf->info) ? (struct ospf *)vrf->info : NULL; | |
449 | ||
450 | } | |
451 | ||
43b8d1d8 CS |
452 | /* It should only be used when processing incoming info update from zebra. |
453 | * Other situations, it is not sufficient to lookup the ospf instance by | |
454 | * vrf_name only without using the instance number. | |
455 | */ | |
456 | static struct ospf *ospf_lookup_by_name(const char *vrf_name) | |
b5a8894d CS |
457 | { |
458 | struct ospf *ospf = NULL; | |
459 | struct listnode *node, *nnode; | |
460 | ||
461 | for (ALL_LIST_ELEMENTS(om->ospf, node, nnode, ospf)) | |
43b8d1d8 CS |
462 | if ((ospf->name == NULL && vrf_name == NULL) |
463 | || (ospf->name && vrf_name && | |
464 | strcmp(ospf->name, vrf_name) == 0)) | |
b5a8894d CS |
465 | return ospf; |
466 | return NULL; | |
467 | } | |
468 | ||
c9c93d50 | 469 | /* Handle the second half of deferred shutdown. This is called either |
470 | * from the deferred-shutdown timer thread, or directly through | |
471 | * ospf_deferred_shutdown_check. | |
88d6cf37 | 472 | * |
473 | * Function is to cleanup G-R state, if required then call ospf_finish_final | |
474 | * to complete shutdown of this ospf instance. Possibly exit if the | |
475 | * whole process is being shutdown and this was the last OSPF instance. | |
476 | */ | |
d62a17ae | 477 | static void ospf_deferred_shutdown_finish(struct ospf *ospf) |
478 | { | |
479 | ospf->stub_router_shutdown_time = OSPF_STUB_ROUTER_UNCONFIGURED; | |
480 | OSPF_TIMER_OFF(ospf->t_deferred_shutdown); | |
481 | ||
482 | ospf_finish_final(ospf); | |
483 | ||
484 | /* *ospf is now invalid */ | |
88d6cf37 | 485 | |
d62a17ae | 486 | /* ospfd being shut-down? If so, was this the last ospf instance? */ |
487 | if (CHECK_FLAG(om->options, OSPF_MASTER_SHUTDOWN) | |
488 | && (listcount(om->ospf) == 0)) { | |
489 | exit(0); | |
490 | } | |
491 | ||
492 | return; | |
88d6cf37 | 493 | } |
494 | ||
495 | /* Timer thread for G-R */ | |
d62a17ae | 496 | static int ospf_deferred_shutdown_timer(struct thread *t) |
88d6cf37 | 497 | { |
d62a17ae | 498 | struct ospf *ospf = THREAD_ARG(t); |
499 | ||
500 | ospf_deferred_shutdown_finish(ospf); | |
501 | ||
502 | return 0; | |
88d6cf37 | 503 | } |
504 | ||
c9c93d50 | 505 | /* Check whether deferred-shutdown must be scheduled, otherwise call |
88d6cf37 | 506 | * down directly into second-half of instance shutdown. |
507 | */ | |
d62a17ae | 508 | static void ospf_deferred_shutdown_check(struct ospf *ospf) |
509 | { | |
510 | unsigned long timeout; | |
511 | struct listnode *ln; | |
512 | struct ospf_area *area; | |
513 | ||
514 | /* deferred shutdown already running? */ | |
515 | if (ospf->t_deferred_shutdown) | |
516 | return; | |
517 | ||
518 | /* Should we try push out max-metric LSAs? */ | |
519 | if (ospf->stub_router_shutdown_time != OSPF_STUB_ROUTER_UNCONFIGURED) { | |
520 | for (ALL_LIST_ELEMENTS_RO(ospf->areas, ln, area)) { | |
521 | SET_FLAG(area->stub_router_state, | |
522 | OSPF_AREA_ADMIN_STUB_ROUTED); | |
523 | ||
524 | if (!CHECK_FLAG(area->stub_router_state, | |
525 | OSPF_AREA_IS_STUB_ROUTED)) | |
526 | ospf_router_lsa_update_area(area); | |
527 | } | |
528 | timeout = ospf->stub_router_shutdown_time; | |
529 | } else { | |
530 | /* No timer needed */ | |
531 | ospf_deferred_shutdown_finish(ospf); | |
532 | return; | |
533 | } | |
534 | ||
535 | OSPF_TIMER_ON(ospf->t_deferred_shutdown, ospf_deferred_shutdown_timer, | |
536 | timeout); | |
537 | return; | |
88d6cf37 | 538 | } |
6b0655a2 | 539 | |
88d6cf37 | 540 | /* Shut down the entire process */ |
d62a17ae | 541 | void ospf_terminate(void) |
542 | { | |
543 | struct ospf *ospf; | |
544 | struct listnode *node, *nnode; | |
545 | ||
546 | /* shutdown already in progress */ | |
547 | if (CHECK_FLAG(om->options, OSPF_MASTER_SHUTDOWN)) | |
548 | return; | |
549 | ||
550 | SET_FLAG(om->options, OSPF_MASTER_SHUTDOWN); | |
551 | ||
552 | /* exit immediately if OSPF not actually running */ | |
553 | if (listcount(om->ospf) == 0) | |
554 | exit(0); | |
555 | ||
556 | bfd_gbl_exit(); | |
557 | for (ALL_LIST_ELEMENTS(om->ospf, node, nnode, ospf)) | |
558 | ospf_finish(ospf); | |
559 | ||
560 | /* Deliberately go back up, hopefully to thread scheduler, as | |
561 | * One or more ospf_finish()'s may have deferred shutdown to a timer | |
562 | * thread | |
563 | */ | |
564 | zclient_stop(zclient); | |
565 | zclient_free(zclient); | |
8879bd22 RW |
566 | |
567 | frr_fini(); | |
d62a17ae | 568 | } |
569 | ||
570 | void ospf_finish(struct ospf *ospf) | |
571 | { | |
572 | /* let deferred shutdown decide */ | |
573 | ospf_deferred_shutdown_check(ospf); | |
574 | ||
575 | /* if ospf_deferred_shutdown returns, then ospf_finish_final is | |
576 | * deferred to expiry of G-S timer thread. Return back up, hopefully | |
577 | * to thread scheduler. | |
578 | */ | |
579 | return; | |
88d6cf37 | 580 | } |
581 | ||
582 | /* Final cleanup of ospf instance */ | |
d62a17ae | 583 | static void ospf_finish_final(struct ospf *ospf) |
718e3744 | 584 | { |
f4e14fdb | 585 | struct vrf *vrf = vrf_lookup_by_id(ospf->vrf_id); |
d62a17ae | 586 | struct route_node *rn; |
587 | struct ospf_nbr_nbma *nbr_nbma; | |
588 | struct ospf_lsa *lsa; | |
589 | struct interface *ifp; | |
590 | struct ospf_interface *oi; | |
591 | struct ospf_area *area; | |
592 | struct ospf_vl_data *vl_data; | |
593 | struct listnode *node, *nnode; | |
594 | int i; | |
595 | u_short instance = 0; | |
7c8ff89e | 596 | |
d62a17ae | 597 | QOBJ_UNREG(ospf); |
7c8ff89e | 598 | |
d62a17ae | 599 | ospf_opaque_type11_lsa_term(ospf); |
953cde65 | 600 | |
d62a17ae | 601 | /* be nice if this worked, but it doesn't */ |
602 | /*ospf_flush_self_originated_lsas_now (ospf);*/ | |
953cde65 | 603 | |
d62a17ae | 604 | /* Unregister redistribution */ |
605 | for (i = 0; i < ZEBRA_ROUTE_MAX; i++) { | |
606 | struct list *red_list; | |
607 | struct ospf_redist *red; | |
718e3744 | 608 | |
d62a17ae | 609 | red_list = ospf->redist[i]; |
610 | if (!red_list) | |
611 | continue; | |
718e3744 | 612 | |
d62a17ae | 613 | for (ALL_LIST_ELEMENTS(red_list, node, nnode, red)) |
614 | ospf_redistribute_unset(ospf, i, red->instance); | |
615 | } | |
616 | ospf_redistribute_default_unset(ospf); | |
718e3744 | 617 | |
d62a17ae | 618 | for (ALL_LIST_ELEMENTS(ospf->areas, node, nnode, area)) |
619 | ospf_remove_vls_through_area(ospf, area); | |
718e3744 | 620 | |
d62a17ae | 621 | for (ALL_LIST_ELEMENTS(ospf->vlinks, node, nnode, vl_data)) |
622 | ospf_vl_delete(ospf, vl_data); | |
718e3744 | 623 | |
affe9e99 | 624 | list_delete_and_null(&ospf->vlinks); |
718e3744 | 625 | |
d62a17ae | 626 | /* Remove any ospf interface config params */ |
451fda4f | 627 | FOR_ALL_INTERFACES (vrf, ifp) { |
d62a17ae | 628 | struct ospf_if_params *params; |
718e3744 | 629 | |
d62a17ae | 630 | params = IF_DEF_PARAMS(ifp); |
631 | if (OSPF_IF_PARAM_CONFIGURED(params, if_area)) | |
632 | UNSET_IF_PARAM(params, if_area); | |
718e3744 | 633 | } |
718e3744 | 634 | |
d62a17ae | 635 | /* Reset interface. */ |
636 | for (ALL_LIST_ELEMENTS(ospf->oiflist, node, nnode, oi)) | |
637 | ospf_if_free(oi); | |
84519c81 | 638 | list_delete_and_null(&ospf->oiflist); |
718e3744 | 639 | |
b5a8894d CS |
640 | /* De-Register VRF */ |
641 | ospf_zebra_vrf_deregister(ospf); | |
642 | ||
d62a17ae | 643 | /* Clear static neighbors */ |
644 | for (rn = route_top(ospf->nbr_nbma); rn; rn = route_next(rn)) | |
645 | if ((nbr_nbma = rn->info)) { | |
646 | OSPF_POLL_TIMER_OFF(nbr_nbma->t_poll); | |
718e3744 | 647 | |
d62a17ae | 648 | if (nbr_nbma->nbr) { |
649 | nbr_nbma->nbr->nbr_nbma = NULL; | |
650 | nbr_nbma->nbr = NULL; | |
651 | } | |
652 | ||
653 | if (nbr_nbma->oi) { | |
654 | listnode_delete(nbr_nbma->oi->nbr_nbma, | |
655 | nbr_nbma); | |
656 | nbr_nbma->oi = NULL; | |
657 | } | |
658 | ||
659 | XFREE(MTYPE_OSPF_NEIGHBOR_STATIC, nbr_nbma); | |
660 | } | |
661 | ||
662 | route_table_finish(ospf->nbr_nbma); | |
663 | ||
664 | /* Clear networks and Areas. */ | |
665 | for (rn = route_top(ospf->networks); rn; rn = route_next(rn)) { | |
666 | struct ospf_network *network; | |
667 | ||
668 | if ((network = rn->info) != NULL) { | |
669 | ospf_network_free(ospf, network); | |
670 | rn->info = NULL; | |
671 | route_unlock_node(rn); | |
672 | } | |
91e6a0e5 | 673 | } |
7f586094 | 674 | route_table_finish(ospf->networks); |
718e3744 | 675 | |
d62a17ae | 676 | for (ALL_LIST_ELEMENTS(ospf->areas, node, nnode, area)) { |
677 | listnode_delete(ospf->areas, area); | |
678 | ospf_area_free(area); | |
679 | } | |
718e3744 | 680 | |
d62a17ae | 681 | /* Cancel all timers. */ |
682 | OSPF_TIMER_OFF(ospf->t_external_lsa); | |
683 | OSPF_TIMER_OFF(ospf->t_spf_calc); | |
684 | OSPF_TIMER_OFF(ospf->t_ase_calc); | |
685 | OSPF_TIMER_OFF(ospf->t_maxage); | |
686 | OSPF_TIMER_OFF(ospf->t_maxage_walker); | |
687 | OSPF_TIMER_OFF(ospf->t_abr_task); | |
688 | OSPF_TIMER_OFF(ospf->t_asbr_check); | |
689 | OSPF_TIMER_OFF(ospf->t_distribute_update); | |
690 | OSPF_TIMER_OFF(ospf->t_lsa_refresher); | |
691 | OSPF_TIMER_OFF(ospf->t_read); | |
692 | OSPF_TIMER_OFF(ospf->t_write); | |
693 | OSPF_TIMER_OFF(ospf->t_opaque_lsa_self); | |
694 | ||
695 | close(ospf->fd); | |
696 | stream_free(ospf->ibuf); | |
697 | ||
698 | LSDB_LOOP(OPAQUE_AS_LSDB(ospf), rn, lsa) | |
699 | ospf_discard_from_db(ospf, ospf->lsdb, lsa); | |
700 | LSDB_LOOP(EXTERNAL_LSDB(ospf), rn, lsa) | |
701 | ospf_discard_from_db(ospf, ospf->lsdb, lsa); | |
702 | ||
703 | ospf_lsdb_delete_all(ospf->lsdb); | |
704 | ospf_lsdb_free(ospf->lsdb); | |
705 | ||
706 | for (rn = route_top(ospf->maxage_lsa); rn; rn = route_next(rn)) { | |
707 | struct ospf_lsa *lsa; | |
708 | ||
709 | if ((lsa = rn->info) != NULL) { | |
710 | ospf_lsa_unlock(&lsa); | |
711 | rn->info = NULL; | |
712 | } | |
713 | route_unlock_node(rn); | |
714 | } | |
715 | route_table_finish(ospf->maxage_lsa); | |
716 | ||
717 | if (ospf->old_table) | |
718 | ospf_route_table_free(ospf->old_table); | |
719 | if (ospf->new_table) { | |
b5a8894d | 720 | ospf_route_delete(ospf, ospf->new_table); |
d62a17ae | 721 | ospf_route_table_free(ospf->new_table); |
722 | } | |
723 | if (ospf->old_rtrs) | |
724 | ospf_rtrs_free(ospf->old_rtrs); | |
725 | if (ospf->new_rtrs) | |
726 | ospf_rtrs_free(ospf->new_rtrs); | |
727 | if (ospf->new_external_route) { | |
b5a8894d | 728 | ospf_route_delete(ospf, ospf->new_external_route); |
d62a17ae | 729 | ospf_route_table_free(ospf->new_external_route); |
730 | } | |
731 | if (ospf->old_external_route) { | |
b5a8894d | 732 | ospf_route_delete(ospf, ospf->old_external_route); |
d62a17ae | 733 | ospf_route_table_free(ospf->old_external_route); |
734 | } | |
735 | if (ospf->external_lsas) { | |
736 | ospf_ase_external_lsas_finish(ospf->external_lsas); | |
737 | } | |
718e3744 | 738 | |
affe9e99 DS |
739 | list_delete_and_null(&ospf->areas); |
740 | list_delete_and_null(&ospf->oi_write_q); | |
d62a17ae | 741 | |
742 | for (i = ZEBRA_ROUTE_SYSTEM; i <= ZEBRA_ROUTE_MAX; i++) { | |
743 | struct list *ext_list; | |
744 | struct listnode *node; | |
745 | struct ospf_external *ext; | |
746 | ||
747 | ext_list = om->external[i]; | |
748 | if (!ext_list) | |
749 | continue; | |
750 | ||
751 | for (ALL_LIST_ELEMENTS_RO(ext_list, node, ext)) { | |
752 | if (ext->external_info) | |
753 | for (rn = route_top(ext->external_info); rn; | |
754 | rn = route_next(rn)) { | |
755 | if (rn->info == NULL) | |
756 | continue; | |
757 | ||
758 | XFREE(MTYPE_OSPF_EXTERNAL_INFO, | |
759 | rn->info); | |
760 | rn->info = NULL; | |
761 | route_unlock_node(rn); | |
762 | } | |
763 | } | |
764 | } | |
718e3744 | 765 | |
d62a17ae | 766 | ospf_distance_reset(ospf); |
767 | route_table_finish(ospf->distance_table); | |
7c8ff89e | 768 | |
d62a17ae | 769 | if (!CHECK_FLAG(om->options, OSPF_MASTER_SHUTDOWN)) |
770 | instance = ospf->instance; | |
718e3744 | 771 | |
d62a17ae | 772 | ospf_delete(ospf); |
7c8ff89e | 773 | |
b5a8894d CS |
774 | if (ospf->name) { |
775 | vrf = vrf_lookup_by_name(ospf->name); | |
776 | if (vrf) | |
777 | ospf_vrf_unlink(ospf, vrf); | |
778 | XFREE(MTYPE_OSPF_TOP, ospf->name); | |
779 | } else { | |
780 | vrf = vrf_lookup_by_id(VRF_DEFAULT); | |
781 | if (vrf) | |
782 | ospf_vrf_unlink(ospf, vrf); | |
783 | } | |
784 | ||
d62a17ae | 785 | XFREE(MTYPE_OSPF_TOP, ospf); |
7c8ff89e | 786 | |
d62a17ae | 787 | if (!CHECK_FLAG(om->options, OSPF_MASTER_SHUTDOWN)) |
788 | ospf_get_instance(instance); | |
718e3744 | 789 | } |
790 | ||
6b0655a2 | 791 | |
718e3744 | 792 | /* allocate new OSPF Area object */ |
d62a17ae | 793 | static struct ospf_area *ospf_area_new(struct ospf *ospf, |
794 | struct in_addr area_id) | |
718e3744 | 795 | { |
d62a17ae | 796 | struct ospf_area *new; |
718e3744 | 797 | |
d62a17ae | 798 | /* Allocate new config_network. */ |
799 | new = XCALLOC(MTYPE_OSPF_AREA, sizeof(struct ospf_area)); | |
718e3744 | 800 | |
d62a17ae | 801 | new->ospf = ospf; |
718e3744 | 802 | |
d62a17ae | 803 | new->area_id = area_id; |
804 | new->area_id_fmt = OSPF_AREA_ID_FMT_DOTTEDQUAD; | |
718e3744 | 805 | |
d62a17ae | 806 | new->external_routing = OSPF_AREA_DEFAULT; |
807 | new->default_cost = 1; | |
808 | new->auth_type = OSPF_AUTH_NULL; | |
718e3744 | 809 | |
d62a17ae | 810 | /* New LSDB init. */ |
811 | new->lsdb = ospf_lsdb_new(); | |
718e3744 | 812 | |
d62a17ae | 813 | /* Self-originated LSAs initialize. */ |
814 | new->router_lsa_self = NULL; | |
718e3744 | 815 | |
d62a17ae | 816 | ospf_opaque_type10_lsa_init(new); |
718e3744 | 817 | |
d62a17ae | 818 | new->oiflist = list_new(); |
819 | new->ranges = route_table_init(); | |
718e3744 | 820 | |
d62a17ae | 821 | if (area_id.s_addr == OSPF_AREA_BACKBONE) |
822 | ospf->backbone = new; | |
823 | ||
824 | return new; | |
718e3744 | 825 | } |
826 | ||
d62a17ae | 827 | static void ospf_area_free(struct ospf_area *area) |
718e3744 | 828 | { |
d62a17ae | 829 | struct route_node *rn; |
830 | struct ospf_lsa *lsa; | |
831 | ||
7f7f77a0 DS |
832 | ospf_opaque_type10_lsa_term(area); |
833 | ||
d62a17ae | 834 | /* Free LSDBs. */ |
835 | LSDB_LOOP(ROUTER_LSDB(area), rn, lsa) | |
836 | ospf_discard_from_db(area->ospf, area->lsdb, lsa); | |
837 | LSDB_LOOP(NETWORK_LSDB(area), rn, lsa) | |
838 | ospf_discard_from_db(area->ospf, area->lsdb, lsa); | |
839 | LSDB_LOOP(SUMMARY_LSDB(area), rn, lsa) | |
840 | ospf_discard_from_db(area->ospf, area->lsdb, lsa); | |
841 | LSDB_LOOP(ASBR_SUMMARY_LSDB(area), rn, lsa) | |
842 | ospf_discard_from_db(area->ospf, area->lsdb, lsa); | |
68980084 | 843 | |
d62a17ae | 844 | LSDB_LOOP(NSSA_LSDB(area), rn, lsa) |
845 | ospf_discard_from_db(area->ospf, area->lsdb, lsa); | |
846 | LSDB_LOOP(OPAQUE_AREA_LSDB(area), rn, lsa) | |
847 | ospf_discard_from_db(area->ospf, area->lsdb, lsa); | |
848 | LSDB_LOOP(OPAQUE_LINK_LSDB(area), rn, lsa) | |
849 | ospf_discard_from_db(area->ospf, area->lsdb, lsa); | |
718e3744 | 850 | |
7f586094 | 851 | ospf_opaque_type10_lsa_term(area); |
d62a17ae | 852 | ospf_lsdb_delete_all(area->lsdb); |
853 | ospf_lsdb_free(area->lsdb); | |
718e3744 | 854 | |
d62a17ae | 855 | ospf_lsa_unlock(&area->router_lsa_self); |
718e3744 | 856 | |
d62a17ae | 857 | route_table_finish(area->ranges); |
affe9e99 | 858 | list_delete_and_null(&area->oiflist); |
718e3744 | 859 | |
d62a17ae | 860 | if (EXPORT_NAME(area)) |
861 | free(EXPORT_NAME(area)); | |
718e3744 | 862 | |
d62a17ae | 863 | if (IMPORT_NAME(area)) |
864 | free(IMPORT_NAME(area)); | |
718e3744 | 865 | |
d62a17ae | 866 | /* Cancel timer. */ |
867 | OSPF_TIMER_OFF(area->t_stub_router); | |
868 | OSPF_TIMER_OFF(area->t_opaque_lsa_self); | |
718e3744 | 869 | |
d62a17ae | 870 | if (OSPF_IS_AREA_BACKBONE(area)) |
871 | area->ospf->backbone = NULL; | |
872 | ||
873 | XFREE(MTYPE_OSPF_AREA, area); | |
718e3744 | 874 | } |
875 | ||
d62a17ae | 876 | void ospf_area_check_free(struct ospf *ospf, struct in_addr area_id) |
718e3744 | 877 | { |
d62a17ae | 878 | struct ospf_area *area; |
718e3744 | 879 | |
d62a17ae | 880 | area = ospf_area_lookup_by_area_id(ospf, area_id); |
881 | if (area && listcount(area->oiflist) == 0 && area->ranges->top == NULL | |
882 | && area->shortcut_configured == OSPF_SHORTCUT_DEFAULT | |
883 | && area->external_routing == OSPF_AREA_DEFAULT | |
884 | && area->no_summary == 0 && area->default_cost == 1 | |
885 | && EXPORT_NAME(area) == NULL && IMPORT_NAME(area) == NULL | |
886 | && area->auth_type == OSPF_AUTH_NULL) { | |
887 | listnode_delete(ospf->areas, area); | |
888 | ospf_area_free(area); | |
889 | } | |
718e3744 | 890 | } |
891 | ||
d62a17ae | 892 | struct ospf_area *ospf_area_get(struct ospf *ospf, struct in_addr area_id) |
718e3744 | 893 | { |
d62a17ae | 894 | struct ospf_area *area; |
895 | ||
896 | area = ospf_area_lookup_by_area_id(ospf, area_id); | |
897 | if (!area) { | |
898 | area = ospf_area_new(ospf, area_id); | |
899 | listnode_add_sort(ospf->areas, area); | |
900 | ospf_check_abr_status(ospf); | |
901 | if (ospf->stub_router_admin_set | |
902 | == OSPF_STUB_ROUTER_ADMINISTRATIVE_SET) { | |
903 | SET_FLAG(area->stub_router_state, | |
904 | OSPF_AREA_ADMIN_STUB_ROUTED); | |
905 | } | |
906 | } | |
718e3744 | 907 | |
d62a17ae | 908 | return area; |
718e3744 | 909 | } |
910 | ||
d62a17ae | 911 | struct ospf_area *ospf_area_lookup_by_area_id(struct ospf *ospf, |
912 | struct in_addr area_id) | |
718e3744 | 913 | { |
d62a17ae | 914 | struct ospf_area *area; |
915 | struct listnode *node; | |
718e3744 | 916 | |
d62a17ae | 917 | for (ALL_LIST_ELEMENTS_RO(ospf->areas, node, area)) |
918 | if (IPV4_ADDR_SAME(&area->area_id, &area_id)) | |
919 | return area; | |
718e3744 | 920 | |
d62a17ae | 921 | return NULL; |
718e3744 | 922 | } |
923 | ||
d62a17ae | 924 | void ospf_area_add_if(struct ospf_area *area, struct ospf_interface *oi) |
718e3744 | 925 | { |
d62a17ae | 926 | listnode_add(area->oiflist, oi); |
718e3744 | 927 | } |
928 | ||
d62a17ae | 929 | void ospf_area_del_if(struct ospf_area *area, struct ospf_interface *oi) |
718e3744 | 930 | { |
d62a17ae | 931 | listnode_delete(area->oiflist, oi); |
718e3744 | 932 | } |
933 | ||
52c62ab8 | 934 | |
d62a17ae | 935 | static void add_ospf_interface(struct connected *co, struct ospf_area *area) |
953cde65 | 936 | { |
d62a17ae | 937 | struct ospf_interface *oi; |
953cde65 | 938 | |
d62a17ae | 939 | oi = ospf_if_new(area->ospf, co->ifp, co->address); |
940 | oi->connected = co; | |
953cde65 | 941 | |
d62a17ae | 942 | oi->area = area; |
953cde65 | 943 | |
d62a17ae | 944 | oi->params = ospf_lookup_if_params(co->ifp, oi->address->u.prefix4); |
945 | oi->output_cost = ospf_if_get_output_cost(oi); | |
953cde65 | 946 | |
d62a17ae | 947 | /* Relate ospf interface to ospf instance. */ |
948 | oi->ospf = area->ospf; | |
953cde65 | 949 | |
d62a17ae | 950 | /* update network type as interface flag */ |
951 | /* If network type is specified previously, | |
952 | skip network type setting. */ | |
953 | oi->type = IF_DEF_PARAMS(co->ifp)->type; | |
953cde65 | 954 | |
d62a17ae | 955 | /* Add pseudo neighbor. */ |
956 | ospf_nbr_self_reset(oi, oi->ospf->router_id); | |
953cde65 | 957 | |
d62a17ae | 958 | ospf_area_add_if(oi->area, oi); |
52c62ab8 | 959 | |
d62a17ae | 960 | /* |
961 | * if router_id is not configured, dont bring up | |
962 | * interfaces. | |
963 | * ospf_router_id_update() will call ospf_if_update | |
964 | * whenever r-id is configured instead. | |
965 | */ | |
966 | if ((area->ospf->router_id.s_addr != 0) && if_is_operative(co->ifp)) | |
967 | ospf_if_up(oi); | |
953cde65 JT |
968 | } |
969 | ||
970 | static void update_redistributed(struct ospf *ospf, int add_to_ospf) | |
971 | { | |
d62a17ae | 972 | struct route_node *rn; |
973 | struct external_info *ei; | |
974 | struct ospf_external *ext; | |
975 | ||
b5a8894d | 976 | if (ospf_is_type_redistributed(ospf, ZEBRA_ROUTE_CONNECT, 0)) |
d62a17ae | 977 | if ((ext = ospf_external_lookup(ZEBRA_ROUTE_CONNECT, 0)) |
978 | && EXTERNAL_INFO(ext)) { | |
979 | for (rn = route_top(EXTERNAL_INFO(ext)); rn; | |
980 | rn = route_next(rn)) { | |
981 | if ((ei = rn->info) != NULL) { | |
982 | if (add_to_ospf) { | |
983 | if (ospf_external_info_find_lsa( | |
984 | ospf, &ei->p)) | |
985 | if (!ospf_distribute_check_connected( | |
986 | ospf, ei)) | |
987 | ospf_external_lsa_flush( | |
988 | ospf, | |
989 | ei->type, | |
990 | &ei->p, | |
991 | ei->ifindex /*, ei->nexthop */); | |
992 | } else { | |
993 | if (!ospf_external_info_find_lsa( | |
994 | ospf, &ei->p)) | |
995 | if (ospf_distribute_check_connected( | |
996 | ospf, ei)) | |
997 | ospf_external_lsa_originate( | |
998 | ospf, | |
999 | ei); | |
1000 | } | |
1001 | } | |
1002 | } | |
1003 | } | |
953cde65 JT |
1004 | } |
1005 | ||
718e3744 | 1006 | /* Config network statement related functions. */ |
d62a17ae | 1007 | static struct ospf_network *ospf_network_new(struct in_addr area_id) |
718e3744 | 1008 | { |
d62a17ae | 1009 | struct ospf_network *new; |
1010 | new = XCALLOC(MTYPE_OSPF_NETWORK, sizeof(struct ospf_network)); | |
718e3744 | 1011 | |
d62a17ae | 1012 | new->area_id = area_id; |
1013 | new->area_id_fmt = OSPF_AREA_ID_FMT_DOTTEDQUAD; | |
1014 | ||
1015 | return new; | |
718e3744 | 1016 | } |
1017 | ||
d62a17ae | 1018 | static void ospf_network_free(struct ospf *ospf, struct ospf_network *network) |
718e3744 | 1019 | { |
d62a17ae | 1020 | ospf_area_check_free(ospf, network->area_id); |
1021 | ospf_schedule_abr_task(ospf); | |
1022 | XFREE(MTYPE_OSPF_NETWORK, network); | |
718e3744 | 1023 | } |
1024 | ||
d62a17ae | 1025 | int ospf_network_set(struct ospf *ospf, struct prefix_ipv4 *p, |
1026 | struct in_addr area_id, int df) | |
718e3744 | 1027 | { |
d62a17ae | 1028 | struct ospf_network *network; |
1029 | struct ospf_area *area; | |
1030 | struct route_node *rn; | |
718e3744 | 1031 | |
d62a17ae | 1032 | rn = route_node_get(ospf->networks, (struct prefix *)p); |
1033 | if (rn->info) { | |
1034 | /* There is already same network statement. */ | |
1035 | route_unlock_node(rn); | |
1036 | return 0; | |
1037 | } | |
718e3744 | 1038 | |
d62a17ae | 1039 | rn->info = network = ospf_network_new(area_id); |
1040 | network->area_id_fmt = df; | |
1041 | area = ospf_area_get(ospf, area_id); | |
1042 | ospf_area_display_format_set(ospf, area, df); | |
718e3744 | 1043 | |
d62a17ae | 1044 | /* Run network config now. */ |
1045 | ospf_network_run((struct prefix *)p, area); | |
718e3744 | 1046 | |
d62a17ae | 1047 | /* Update connected redistribute. */ |
1048 | update_redistributed(ospf, 1); /* interfaces possibly added */ | |
718e3744 | 1049 | |
d62a17ae | 1050 | ospf_area_check_free(ospf, area_id); |
718e3744 | 1051 | |
d62a17ae | 1052 | return 1; |
718e3744 | 1053 | } |
1054 | ||
d62a17ae | 1055 | int ospf_network_unset(struct ospf *ospf, struct prefix_ipv4 *p, |
1056 | struct in_addr area_id) | |
718e3744 | 1057 | { |
d62a17ae | 1058 | struct route_node *rn; |
1059 | struct ospf_network *network; | |
1060 | struct listnode *node, *nnode; | |
1061 | struct ospf_interface *oi; | |
718e3744 | 1062 | |
d62a17ae | 1063 | rn = route_node_lookup(ospf->networks, (struct prefix *)p); |
1064 | if (rn == NULL) | |
1065 | return 0; | |
718e3744 | 1066 | |
d62a17ae | 1067 | network = rn->info; |
1068 | route_unlock_node(rn); | |
1069 | if (!IPV4_ADDR_SAME(&area_id, &network->area_id)) | |
1070 | return 0; | |
718e3744 | 1071 | |
d62a17ae | 1072 | ospf_network_free(ospf, rn->info); |
1073 | rn->info = NULL; | |
1074 | route_unlock_node(rn); /* initial reference */ | |
718e3744 | 1075 | |
30c0daa4 | 1076 | /* Find interfaces that are not configured already. */ |
d62a17ae | 1077 | for (ALL_LIST_ELEMENTS(ospf->oiflist, node, nnode, oi)) { |
30c0daa4 JAG |
1078 | |
1079 | if (oi->type == OSPF_IFTYPE_VIRTUALLINK) | |
1080 | continue; | |
1081 | ||
1082 | ospf_network_run_subnet(ospf, oi->connected, NULL, NULL); | |
d62a17ae | 1083 | } |
953cde65 | 1084 | |
d62a17ae | 1085 | /* Update connected redistribute. */ |
1086 | update_redistributed(ospf, 0); /* interfaces possibly removed */ | |
1087 | ospf_area_check_free(ospf, area_id); | |
1088 | ||
1089 | return 1; | |
953cde65 JT |
1090 | } |
1091 | ||
52c62ab8 JAG |
1092 | /* Ensure there's an OSPF instance, as "ip ospf area" enabled OSPF means |
1093 | * there might not be any 'router ospf' config. | |
1094 | * | |
1095 | * Otherwise, doesn't do anything different to ospf_if_update for now | |
1096 | */ | |
b5a8894d | 1097 | void ospf_interface_area_set(struct ospf *ospf, struct interface *ifp) |
953cde65 | 1098 | { |
b5a8894d CS |
1099 | if (!ospf) |
1100 | return; | |
d62a17ae | 1101 | |
1102 | ospf_if_update(ospf, ifp); | |
1103 | /* if_update does a update_redistributed */ | |
1104 | ||
1105 | return; | |
953cde65 JT |
1106 | } |
1107 | ||
b5a8894d | 1108 | void ospf_interface_area_unset(struct ospf *ospf, struct interface *ifp) |
953cde65 | 1109 | { |
d62a17ae | 1110 | struct route_node *rn_oi; |
953cde65 | 1111 | |
d62a17ae | 1112 | if (!ospf) |
1113 | return; /* Ospf not ready yet */ | |
953cde65 | 1114 | |
d62a17ae | 1115 | /* Find interfaces that may need to be removed. */ |
1116 | for (rn_oi = route_top(IF_OIFS(ifp)); rn_oi; | |
1117 | rn_oi = route_next(rn_oi)) { | |
b5a8894d | 1118 | struct ospf_interface *oi = NULL; |
d62a17ae | 1119 | |
1120 | if ((oi = rn_oi->info) == NULL) | |
1121 | continue; | |
1122 | ||
1123 | if (oi->type == OSPF_IFTYPE_VIRTUALLINK) | |
1124 | continue; | |
1125 | ||
1126 | ospf_network_run_subnet(ospf, oi->connected, NULL, NULL); | |
1127 | } | |
953cde65 | 1128 | |
d62a17ae | 1129 | /* Update connected redistribute. */ |
1130 | update_redistributed(ospf, 0); /* interfaces possibly removed */ | |
718e3744 | 1131 | } |
1132 | ||
570f7598 | 1133 | /* Check whether interface matches given network |
1134 | * returns: 1, true. 0, false | |
1135 | */ | |
d62a17ae | 1136 | static int ospf_network_match_iface(const struct connected *co, |
1137 | const struct prefix *net) | |
570f7598 | 1138 | { |
d62a17ae | 1139 | /* new approach: more elegant and conceptually clean */ |
1140 | return prefix_match_network_statement(net, CONNECTED_PREFIX(co)); | |
570f7598 | 1141 | } |
1142 | ||
d62a17ae | 1143 | static void ospf_update_interface_area(struct connected *co, |
1144 | struct ospf_area *area) | |
52c62ab8 | 1145 | { |
d62a17ae | 1146 | struct ospf_interface *oi = ospf_if_table_lookup(co->ifp, co->address); |
1147 | ||
1148 | /* nothing to be done case */ | |
1149 | if (oi && oi->area == area) { | |
1150 | return; | |
1151 | } | |
1152 | ||
1153 | if (oi) | |
1154 | ospf_if_free(oi); | |
1155 | ||
1156 | add_ospf_interface(co, area); | |
52c62ab8 JAG |
1157 | } |
1158 | ||
1159 | /* Run OSPF for the given subnet, taking into account the following | |
1160 | * possible sources of area configuration, in the given order of preference: | |
1161 | * | |
1162 | * - Whether there is interface+address specific area configuration | |
1163 | * - Whether there is a default area for the interface | |
1164 | * - Whether there is an area given as a parameter. | |
1165 | * - If no specific network prefix/area is supplied, whether there's | |
1166 | * a matching network configured. | |
1167 | */ | |
d62a17ae | 1168 | static void ospf_network_run_subnet(struct ospf *ospf, struct connected *co, |
1169 | struct prefix *p, | |
1170 | struct ospf_area *given_area) | |
1171 | { | |
1172 | struct ospf_interface *oi; | |
1173 | struct ospf_if_params *params; | |
1174 | struct ospf_area *area = NULL; | |
1175 | struct route_node *rn; | |
1176 | int configed = 0; | |
1177 | ||
1178 | if (CHECK_FLAG(co->flags, ZEBRA_IFA_SECONDARY)) | |
1179 | return; | |
1180 | ||
1181 | if (co->address->family != AF_INET) | |
1182 | return; | |
1183 | ||
1184 | /* Try determine the appropriate area for this interface + address | |
1185 | * Start by checking interface config | |
1186 | */ | |
1187 | params = ospf_lookup_if_params(co->ifp, co->address->u.prefix4); | |
1188 | if (params && OSPF_IF_PARAM_CONFIGURED(params, if_area)) | |
1189 | area = ospf_area_get(ospf, params->if_area); | |
1190 | else { | |
1191 | params = IF_DEF_PARAMS(co->ifp); | |
1192 | if (OSPF_IF_PARAM_CONFIGURED(params, if_area)) | |
1193 | area = ospf_area_get(ospf, params->if_area); | |
1194 | } | |
52c62ab8 | 1195 | |
d62a17ae | 1196 | /* If we've found an interface and/or addr specific area, then we're |
1197 | * done | |
1198 | */ | |
1199 | if (area) { | |
1200 | ospf_update_interface_area(co, area); | |
1201 | return; | |
1202 | } | |
718e3744 | 1203 | |
d62a17ae | 1204 | /* Otherwise, only remaining possibility is a matching network statement |
1205 | */ | |
1206 | if (p) { | |
1207 | assert(given_area != NULL); | |
1208 | ||
1209 | /* Which either was supplied as a parameter.. (e.g. cause a new | |
1210 | * network/area was just added).. | |
1211 | */ | |
1212 | if (p->family == co->address->family | |
1213 | && ospf_network_match_iface(co, p)) | |
1214 | ospf_update_interface_area(co, given_area); | |
1215 | ||
1216 | return; | |
1217 | } | |
1218 | ||
1219 | /* Else we have to search the existing network/area config to see | |
1220 | * if any match.. | |
1221 | */ | |
1222 | for (rn = route_top(ospf->networks); rn; rn = route_next(rn)) | |
1223 | if (rn->info != NULL && ospf_network_match_iface(co, &rn->p)) { | |
1224 | struct ospf_network *network = | |
1225 | (struct ospf_network *)rn->info; | |
1226 | area = ospf_area_get(ospf, network->area_id); | |
1227 | ospf_update_interface_area(co, area); | |
1228 | configed = 1; | |
1229 | } | |
1230 | ||
1231 | /* If the subnet isn't in any area, deconfigure */ | |
1232 | if (!configed && (oi = ospf_if_table_lookup(co->ifp, co->address))) | |
1233 | ospf_if_free(oi); | |
718e3744 | 1234 | } |
1235 | ||
d62a17ae | 1236 | static void ospf_network_run_interface(struct ospf *ospf, struct interface *ifp, |
1237 | struct prefix *p, | |
1238 | struct ospf_area *given_area) | |
718e3744 | 1239 | { |
d62a17ae | 1240 | struct listnode *cnode; |
1241 | struct connected *co; | |
1242 | ||
1243 | if (memcmp(ifp->name, "VLINK", 5) == 0) | |
1244 | return; | |
718e3744 | 1245 | |
d62a17ae | 1246 | /* Network prefix without area is nonsensical */ |
1247 | if (p) | |
1248 | assert(given_area != NULL); | |
1249 | ||
1250 | /* if interface prefix is match specified prefix, | |
1251 | then create socket and join multicast group. */ | |
1252 | for (ALL_LIST_ELEMENTS_RO(ifp->connected, cnode, co)) | |
1253 | ospf_network_run_subnet(ospf, co, p, given_area); | |
718e3744 | 1254 | } |
1255 | ||
d62a17ae | 1256 | static void ospf_network_run(struct prefix *p, struct ospf_area *area) |
718e3744 | 1257 | { |
f4e14fdb | 1258 | struct vrf *vrf = vrf_lookup_by_id(area->ospf->vrf_id); |
d62a17ae | 1259 | struct interface *ifp; |
d62a17ae | 1260 | |
1261 | /* Schedule Router ID Update. */ | |
1262 | if (area->ospf->router_id.s_addr == 0) | |
1263 | ospf_router_id_update(area->ospf); | |
718e3744 | 1264 | |
d62a17ae | 1265 | /* Get target interface. */ |
451fda4f | 1266 | FOR_ALL_INTERFACES (vrf, ifp) |
d62a17ae | 1267 | ospf_network_run_interface(area->ospf, ifp, p, area); |
718e3744 | 1268 | } |
1269 | ||
d62a17ae | 1270 | void ospf_ls_upd_queue_empty(struct ospf_interface *oi) |
1271 | { | |
1272 | struct route_node *rn; | |
1273 | struct listnode *node, *nnode; | |
1274 | struct list *lst; | |
1275 | struct ospf_lsa *lsa; | |
1276 | ||
1277 | /* empty ls update queue */ | |
1278 | for (rn = route_top(oi->ls_upd_queue); rn; rn = route_next(rn)) | |
1279 | if ((lst = (struct list *)rn->info)) { | |
1280 | for (ALL_LIST_ELEMENTS(lst, node, nnode, lsa)) | |
1281 | ospf_lsa_unlock(&lsa); /* oi->ls_upd_queue */ | |
affe9e99 | 1282 | list_delete_and_null(&lst); |
d62a17ae | 1283 | rn->info = NULL; |
1284 | } | |
1285 | ||
1286 | /* remove update event */ | |
1287 | if (oi->t_ls_upd_event) { | |
1288 | thread_cancel(oi->t_ls_upd_event); | |
1289 | oi->t_ls_upd_event = NULL; | |
1290 | } | |
1291 | } | |
6b0655a2 | 1292 | |
d62a17ae | 1293 | void ospf_if_update(struct ospf *ospf, struct interface *ifp) |
718e3744 | 1294 | { |
43b8d1d8 | 1295 | |
d62a17ae | 1296 | if (!ospf) |
43b8d1d8 | 1297 | return; |
b5a8894d CS |
1298 | |
1299 | if (IS_DEBUG_OSPF_EVENT) | |
1300 | zlog_debug("%s: interface %s ifp->vrf_id %u ospf vrf %s vrf_id %u router_id %s", | |
1301 | __PRETTY_FUNCTION__, ifp->name, ifp->vrf_id, | |
1302 | ospf_vrf_id_to_name(ospf->vrf_id), ospf->vrf_id, | |
1303 | inet_ntoa(ospf->router_id)); | |
d62a17ae | 1304 | |
1305 | /* OSPF must be ready. */ | |
1306 | if (!ospf_is_ready(ospf)) | |
1307 | return; | |
1308 | ||
1309 | ospf_network_run_interface(ospf, ifp, NULL, NULL); | |
1310 | ||
1311 | /* Update connected redistribute. */ | |
1312 | update_redistributed(ospf, 1); | |
1313 | } | |
718e3744 | 1314 | |
d62a17ae | 1315 | void ospf_remove_vls_through_area(struct ospf *ospf, struct ospf_area *area) |
718e3744 | 1316 | { |
d62a17ae | 1317 | struct listnode *node, *nnode; |
1318 | struct ospf_vl_data *vl_data; | |
718e3744 | 1319 | |
d62a17ae | 1320 | for (ALL_LIST_ELEMENTS(ospf->vlinks, node, nnode, vl_data)) |
1321 | if (IPV4_ADDR_SAME(&vl_data->vl_area_id, &area->area_id)) | |
1322 | ospf_vl_delete(ospf, vl_data); | |
1323 | } | |
718e3744 | 1324 | |
718e3744 | 1325 | |
d62a17ae | 1326 | static const struct message ospf_area_type_msg[] = { |
1327 | {OSPF_AREA_DEFAULT, "Default"}, | |
1328 | {OSPF_AREA_STUB, "Stub"}, | |
1329 | {OSPF_AREA_NSSA, "NSSA"}, | |
1330 | {0}}; | |
718e3744 | 1331 | |
d62a17ae | 1332 | static void ospf_area_type_set(struct ospf_area *area, int type) |
1333 | { | |
1334 | struct listnode *node; | |
1335 | struct ospf_interface *oi; | |
1336 | ||
1337 | if (area->external_routing == type) { | |
1338 | if (IS_DEBUG_OSPF_EVENT) | |
1339 | zlog_debug("Area[%s]: Types are the same, ignored.", | |
1340 | inet_ntoa(area->area_id)); | |
1341 | return; | |
1342 | } | |
718e3744 | 1343 | |
d62a17ae | 1344 | area->external_routing = type; |
1345 | ||
1346 | if (IS_DEBUG_OSPF_EVENT) | |
1347 | zlog_debug("Area[%s]: Configured as %s", | |
1348 | inet_ntoa(area->area_id), | |
1349 | lookup_msg(ospf_area_type_msg, type, NULL)); | |
1350 | ||
1351 | switch (area->external_routing) { | |
1352 | case OSPF_AREA_DEFAULT: | |
1353 | for (ALL_LIST_ELEMENTS_RO(area->oiflist, node, oi)) | |
1354 | if (oi->nbr_self != NULL) { | |
1355 | UNSET_FLAG(oi->nbr_self->options, | |
1356 | OSPF_OPTION_NP); | |
1357 | SET_FLAG(oi->nbr_self->options, OSPF_OPTION_E); | |
1358 | } | |
1359 | break; | |
1360 | case OSPF_AREA_STUB: | |
1361 | for (ALL_LIST_ELEMENTS_RO(area->oiflist, node, oi)) | |
1362 | if (oi->nbr_self != NULL) { | |
1363 | if (IS_DEBUG_OSPF_EVENT) | |
1364 | zlog_debug( | |
1365 | "setting options on %s accordingly", | |
1366 | IF_NAME(oi)); | |
1367 | UNSET_FLAG(oi->nbr_self->options, | |
1368 | OSPF_OPTION_NP); | |
1369 | UNSET_FLAG(oi->nbr_self->options, | |
1370 | OSPF_OPTION_E); | |
1371 | if (IS_DEBUG_OSPF_EVENT) | |
1372 | zlog_debug("options set on %s: %x", | |
1373 | IF_NAME(oi), OPTIONS(oi)); | |
1374 | } | |
1375 | break; | |
1376 | case OSPF_AREA_NSSA: | |
1377 | for (ALL_LIST_ELEMENTS_RO(area->oiflist, node, oi)) | |
1378 | if (oi->nbr_self != NULL) { | |
1379 | zlog_debug( | |
1380 | "setting nssa options on %s accordingly", | |
1381 | IF_NAME(oi)); | |
1382 | UNSET_FLAG(oi->nbr_self->options, | |
1383 | OSPF_OPTION_E); | |
1384 | SET_FLAG(oi->nbr_self->options, OSPF_OPTION_NP); | |
1385 | zlog_debug("options set on %s: %x", IF_NAME(oi), | |
1386 | OPTIONS(oi)); | |
1387 | } | |
1388 | break; | |
1389 | default: | |
1390 | break; | |
1391 | } | |
1392 | ||
1393 | ospf_router_lsa_update_area(area); | |
1394 | ospf_schedule_abr_task(area->ospf); | |
718e3744 | 1395 | } |
1396 | ||
d62a17ae | 1397 | int ospf_area_shortcut_set(struct ospf *ospf, struct ospf_area *area, int mode) |
718e3744 | 1398 | { |
d62a17ae | 1399 | if (area->shortcut_configured == mode) |
1400 | return 0; | |
718e3744 | 1401 | |
d62a17ae | 1402 | area->shortcut_configured = mode; |
1403 | ospf_router_lsa_update_area(area); | |
1404 | ospf_schedule_abr_task(ospf); | |
718e3744 | 1405 | |
d62a17ae | 1406 | ospf_area_check_free(ospf, area->area_id); |
718e3744 | 1407 | |
d62a17ae | 1408 | return 1; |
718e3744 | 1409 | } |
1410 | ||
d62a17ae | 1411 | int ospf_area_shortcut_unset(struct ospf *ospf, struct ospf_area *area) |
718e3744 | 1412 | { |
d62a17ae | 1413 | area->shortcut_configured = OSPF_SHORTCUT_DEFAULT; |
1414 | ospf_router_lsa_update_area(area); | |
1415 | ospf_area_check_free(ospf, area->area_id); | |
1416 | ospf_schedule_abr_task(ospf); | |
718e3744 | 1417 | |
d62a17ae | 1418 | return 1; |
718e3744 | 1419 | } |
1420 | ||
d62a17ae | 1421 | static int ospf_area_vlink_count(struct ospf *ospf, struct ospf_area *area) |
718e3744 | 1422 | { |
d62a17ae | 1423 | struct ospf_vl_data *vl; |
1424 | struct listnode *node; | |
1425 | int count = 0; | |
718e3744 | 1426 | |
d62a17ae | 1427 | for (ALL_LIST_ELEMENTS_RO(ospf->vlinks, node, vl)) |
1428 | if (IPV4_ADDR_SAME(&vl->vl_area_id, &area->area_id)) | |
1429 | count++; | |
718e3744 | 1430 | |
d62a17ae | 1431 | return count; |
718e3744 | 1432 | } |
1433 | ||
d62a17ae | 1434 | int ospf_area_display_format_set(struct ospf *ospf, struct ospf_area *area, |
1435 | int df) | |
86573dcb | 1436 | { |
d62a17ae | 1437 | area->area_id_fmt = df; |
86573dcb | 1438 | |
d62a17ae | 1439 | return 1; |
86573dcb QY |
1440 | } |
1441 | ||
d62a17ae | 1442 | int ospf_area_stub_set(struct ospf *ospf, struct in_addr area_id) |
718e3744 | 1443 | { |
d62a17ae | 1444 | struct ospf_area *area; |
718e3744 | 1445 | |
d62a17ae | 1446 | area = ospf_area_get(ospf, area_id); |
1447 | if (ospf_area_vlink_count(ospf, area)) | |
1448 | return 0; | |
718e3744 | 1449 | |
d62a17ae | 1450 | if (area->external_routing != OSPF_AREA_STUB) |
1451 | ospf_area_type_set(area, OSPF_AREA_STUB); | |
718e3744 | 1452 | |
d62a17ae | 1453 | return 1; |
718e3744 | 1454 | } |
1455 | ||
d62a17ae | 1456 | int ospf_area_stub_unset(struct ospf *ospf, struct in_addr area_id) |
718e3744 | 1457 | { |
d62a17ae | 1458 | struct ospf_area *area; |
718e3744 | 1459 | |
d62a17ae | 1460 | area = ospf_area_lookup_by_area_id(ospf, area_id); |
1461 | if (area == NULL) | |
1462 | return 1; | |
718e3744 | 1463 | |
d62a17ae | 1464 | if (area->external_routing == OSPF_AREA_STUB) |
1465 | ospf_area_type_set(area, OSPF_AREA_DEFAULT); | |
718e3744 | 1466 | |
d62a17ae | 1467 | ospf_area_check_free(ospf, area_id); |
718e3744 | 1468 | |
d62a17ae | 1469 | return 1; |
718e3744 | 1470 | } |
1471 | ||
d62a17ae | 1472 | int ospf_area_no_summary_set(struct ospf *ospf, struct in_addr area_id) |
718e3744 | 1473 | { |
d62a17ae | 1474 | struct ospf_area *area; |
718e3744 | 1475 | |
d62a17ae | 1476 | area = ospf_area_get(ospf, area_id); |
1477 | area->no_summary = 1; | |
718e3744 | 1478 | |
d62a17ae | 1479 | return 1; |
718e3744 | 1480 | } |
1481 | ||
d62a17ae | 1482 | int ospf_area_no_summary_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 0; | |
718e3744 | 1489 | |
d62a17ae | 1490 | area->no_summary = 0; |
1491 | ospf_area_check_free(ospf, area_id); | |
718e3744 | 1492 | |
d62a17ae | 1493 | return 1; |
718e3744 | 1494 | } |
1495 | ||
d62a17ae | 1496 | int ospf_area_nssa_set(struct ospf *ospf, struct in_addr area_id) |
718e3744 | 1497 | { |
d62a17ae | 1498 | struct ospf_area *area; |
718e3744 | 1499 | |
d62a17ae | 1500 | area = ospf_area_get(ospf, area_id); |
1501 | if (ospf_area_vlink_count(ospf, area)) | |
1502 | return 0; | |
718e3744 | 1503 | |
d62a17ae | 1504 | if (area->external_routing != OSPF_AREA_NSSA) { |
1505 | ospf_area_type_set(area, OSPF_AREA_NSSA); | |
1506 | ospf->anyNSSA++; | |
1507 | } | |
718e3744 | 1508 | |
d62a17ae | 1509 | /* set NSSA area defaults */ |
1510 | area->no_summary = 0; | |
1511 | area->NSSATranslatorRole = OSPF_NSSA_ROLE_CANDIDATE; | |
1512 | area->NSSATranslatorState = OSPF_NSSA_TRANSLATE_DISABLED; | |
1513 | area->NSSATranslatorStabilityInterval = OSPF_NSSA_TRANS_STABLE_DEFAULT; | |
084c7844 | 1514 | |
d62a17ae | 1515 | return 1; |
718e3744 | 1516 | } |
1517 | ||
d62a17ae | 1518 | int ospf_area_nssa_unset(struct ospf *ospf, struct in_addr area_id) |
718e3744 | 1519 | { |
d62a17ae | 1520 | struct ospf_area *area; |
718e3744 | 1521 | |
d62a17ae | 1522 | area = ospf_area_lookup_by_area_id(ospf, area_id); |
1523 | if (area == NULL) | |
1524 | return 0; | |
718e3744 | 1525 | |
d62a17ae | 1526 | if (area->external_routing == OSPF_AREA_NSSA) { |
1527 | ospf->anyNSSA--; | |
1528 | ospf_area_type_set(area, OSPF_AREA_DEFAULT); | |
1529 | } | |
718e3744 | 1530 | |
d62a17ae | 1531 | ospf_area_check_free(ospf, area_id); |
718e3744 | 1532 | |
d62a17ae | 1533 | return 1; |
718e3744 | 1534 | } |
1535 | ||
d62a17ae | 1536 | int ospf_area_nssa_translator_role_set(struct ospf *ospf, |
1537 | struct in_addr area_id, int role) | |
718e3744 | 1538 | { |
d62a17ae | 1539 | struct ospf_area *area; |
718e3744 | 1540 | |
d62a17ae | 1541 | area = ospf_area_lookup_by_area_id(ospf, area_id); |
1542 | if (area == NULL) | |
1543 | return 0; | |
718e3744 | 1544 | |
d62a17ae | 1545 | area->NSSATranslatorRole = role; |
718e3744 | 1546 | |
d62a17ae | 1547 | return 1; |
718e3744 | 1548 | } |
1549 | ||
075e12f5 | 1550 | #if 0 |
4dadc291 | 1551 | /* XXX: unused? Leave for symmetry? */ |
1552 | static int | |
718e3744 | 1553 | ospf_area_nssa_translator_role_unset (struct ospf *ospf, |
1554 | struct in_addr area_id) | |
1555 | { | |
1556 | struct ospf_area *area; | |
1557 | ||
68980084 | 1558 | area = ospf_area_lookup_by_area_id (ospf, area_id); |
718e3744 | 1559 | if (area == NULL) |
1560 | return 0; | |
1561 | ||
084c7844 | 1562 | area->NSSATranslatorRole = OSPF_NSSA_ROLE_CANDIDATE; |
718e3744 | 1563 | |
68980084 | 1564 | ospf_area_check_free (ospf, area_id); |
718e3744 | 1565 | |
1566 | return 1; | |
1567 | } | |
075e12f5 | 1568 | #endif |
718e3744 | 1569 | |
d62a17ae | 1570 | int ospf_area_export_list_set(struct ospf *ospf, struct ospf_area *area, |
1571 | const char *list_name) | |
718e3744 | 1572 | { |
d62a17ae | 1573 | struct access_list *list; |
1574 | list = access_list_lookup(AFI_IP, list_name); | |
718e3744 | 1575 | |
d62a17ae | 1576 | EXPORT_LIST(area) = list; |
718e3744 | 1577 | |
d62a17ae | 1578 | if (EXPORT_NAME(area)) |
1579 | free(EXPORT_NAME(area)); | |
718e3744 | 1580 | |
d62a17ae | 1581 | EXPORT_NAME(area) = strdup(list_name); |
1582 | ospf_schedule_abr_task(ospf); | |
718e3744 | 1583 | |
d62a17ae | 1584 | return 1; |
718e3744 | 1585 | } |
1586 | ||
d62a17ae | 1587 | int ospf_area_export_list_unset(struct ospf *ospf, struct ospf_area *area) |
718e3744 | 1588 | { |
1589 | ||
d62a17ae | 1590 | EXPORT_LIST(area) = 0; |
718e3744 | 1591 | |
d62a17ae | 1592 | if (EXPORT_NAME(area)) |
1593 | free(EXPORT_NAME(area)); | |
718e3744 | 1594 | |
d62a17ae | 1595 | EXPORT_NAME(area) = NULL; |
718e3744 | 1596 | |
d62a17ae | 1597 | ospf_area_check_free(ospf, area->area_id); |
718e3744 | 1598 | |
d62a17ae | 1599 | ospf_schedule_abr_task(ospf); |
1600 | ||
1601 | return 1; | |
718e3744 | 1602 | } |
1603 | ||
d62a17ae | 1604 | int ospf_area_import_list_set(struct ospf *ospf, struct ospf_area *area, |
1605 | const char *name) | |
718e3744 | 1606 | { |
d62a17ae | 1607 | struct access_list *list; |
1608 | list = access_list_lookup(AFI_IP, name); | |
718e3744 | 1609 | |
d62a17ae | 1610 | IMPORT_LIST(area) = list; |
718e3744 | 1611 | |
d62a17ae | 1612 | if (IMPORT_NAME(area)) |
1613 | free(IMPORT_NAME(area)); | |
718e3744 | 1614 | |
d62a17ae | 1615 | IMPORT_NAME(area) = strdup(name); |
1616 | ospf_schedule_abr_task(ospf); | |
718e3744 | 1617 | |
d62a17ae | 1618 | return 1; |
718e3744 | 1619 | } |
1620 | ||
d62a17ae | 1621 | int ospf_area_import_list_unset(struct ospf *ospf, struct ospf_area *area) |
718e3744 | 1622 | { |
d62a17ae | 1623 | IMPORT_LIST(area) = 0; |
718e3744 | 1624 | |
d62a17ae | 1625 | if (IMPORT_NAME(area)) |
1626 | free(IMPORT_NAME(area)); | |
718e3744 | 1627 | |
d62a17ae | 1628 | IMPORT_NAME(area) = NULL; |
1629 | ospf_area_check_free(ospf, area->area_id); | |
718e3744 | 1630 | |
d62a17ae | 1631 | ospf_schedule_abr_task(ospf); |
718e3744 | 1632 | |
d62a17ae | 1633 | return 1; |
718e3744 | 1634 | } |
1635 | ||
d62a17ae | 1636 | int ospf_timers_refresh_set(struct ospf *ospf, int interval) |
718e3744 | 1637 | { |
d62a17ae | 1638 | int time_left; |
718e3744 | 1639 | |
d62a17ae | 1640 | if (ospf->lsa_refresh_interval == interval) |
1641 | return 1; | |
718e3744 | 1642 | |
d62a17ae | 1643 | time_left = ospf->lsa_refresh_interval |
1644 | - (monotime(NULL) - ospf->lsa_refresher_started); | |
718e3744 | 1645 | |
d62a17ae | 1646 | if (time_left > interval) { |
1647 | OSPF_TIMER_OFF(ospf->t_lsa_refresher); | |
1648 | thread_add_timer(master, ospf_lsa_refresh_walker, ospf, | |
1649 | interval, &ospf->t_lsa_refresher); | |
1650 | } | |
1651 | ospf->lsa_refresh_interval = interval; | |
1652 | ||
1653 | return 1; | |
718e3744 | 1654 | } |
1655 | ||
d62a17ae | 1656 | int ospf_timers_refresh_unset(struct ospf *ospf) |
718e3744 | 1657 | { |
d62a17ae | 1658 | int time_left; |
718e3744 | 1659 | |
d62a17ae | 1660 | time_left = ospf->lsa_refresh_interval |
1661 | - (monotime(NULL) - ospf->lsa_refresher_started); | |
718e3744 | 1662 | |
d62a17ae | 1663 | if (time_left > OSPF_LSA_REFRESH_INTERVAL_DEFAULT) { |
1664 | OSPF_TIMER_OFF(ospf->t_lsa_refresher); | |
1665 | ospf->t_lsa_refresher = NULL; | |
1666 | thread_add_timer(master, ospf_lsa_refresh_walker, ospf, | |
1667 | OSPF_LSA_REFRESH_INTERVAL_DEFAULT, | |
1668 | &ospf->t_lsa_refresher); | |
1669 | } | |
718e3744 | 1670 | |
d62a17ae | 1671 | ospf->lsa_refresh_interval = OSPF_LSA_REFRESH_INTERVAL_DEFAULT; |
718e3744 | 1672 | |
d62a17ae | 1673 | return 1; |
718e3744 | 1674 | } |
1675 | ||
6b0655a2 | 1676 | |
d62a17ae | 1677 | static struct ospf_nbr_nbma *ospf_nbr_nbma_new(void) |
718e3744 | 1678 | { |
d62a17ae | 1679 | struct ospf_nbr_nbma *nbr_nbma; |
718e3744 | 1680 | |
d62a17ae | 1681 | nbr_nbma = XCALLOC(MTYPE_OSPF_NEIGHBOR_STATIC, |
1682 | sizeof(struct ospf_nbr_nbma)); | |
718e3744 | 1683 | |
d62a17ae | 1684 | nbr_nbma->priority = OSPF_NEIGHBOR_PRIORITY_DEFAULT; |
1685 | nbr_nbma->v_poll = OSPF_POLL_INTERVAL_DEFAULT; | |
718e3744 | 1686 | |
d62a17ae | 1687 | return nbr_nbma; |
718e3744 | 1688 | } |
1689 | ||
d62a17ae | 1690 | static void ospf_nbr_nbma_free(struct ospf_nbr_nbma *nbr_nbma) |
718e3744 | 1691 | { |
d62a17ae | 1692 | XFREE(MTYPE_OSPF_NEIGHBOR_STATIC, nbr_nbma); |
718e3744 | 1693 | } |
1694 | ||
d62a17ae | 1695 | static void ospf_nbr_nbma_delete(struct ospf *ospf, |
1696 | struct ospf_nbr_nbma *nbr_nbma) | |
718e3744 | 1697 | { |
d62a17ae | 1698 | struct route_node *rn; |
1699 | struct prefix_ipv4 p; | |
718e3744 | 1700 | |
d62a17ae | 1701 | p.family = AF_INET; |
1702 | p.prefix = nbr_nbma->addr; | |
1703 | p.prefixlen = IPV4_MAX_BITLEN; | |
718e3744 | 1704 | |
d62a17ae | 1705 | rn = route_node_lookup(ospf->nbr_nbma, (struct prefix *)&p); |
1706 | if (rn) { | |
1707 | ospf_nbr_nbma_free(rn->info); | |
1708 | rn->info = NULL; | |
1709 | route_unlock_node(rn); | |
1710 | route_unlock_node(rn); | |
1711 | } | |
718e3744 | 1712 | } |
1713 | ||
d62a17ae | 1714 | static void ospf_nbr_nbma_down(struct ospf_nbr_nbma *nbr_nbma) |
718e3744 | 1715 | { |
d62a17ae | 1716 | OSPF_TIMER_OFF(nbr_nbma->t_poll); |
718e3744 | 1717 | |
d62a17ae | 1718 | if (nbr_nbma->nbr) { |
1719 | nbr_nbma->nbr->nbr_nbma = NULL; | |
1720 | OSPF_NSM_EVENT_EXECUTE(nbr_nbma->nbr, NSM_KillNbr); | |
1721 | } | |
718e3744 | 1722 | |
d62a17ae | 1723 | if (nbr_nbma->oi) |
1724 | listnode_delete(nbr_nbma->oi->nbr_nbma, nbr_nbma); | |
718e3744 | 1725 | } |
1726 | ||
d62a17ae | 1727 | static void ospf_nbr_nbma_add(struct ospf_nbr_nbma *nbr_nbma, |
1728 | struct ospf_interface *oi) | |
718e3744 | 1729 | { |
d62a17ae | 1730 | struct ospf_neighbor *nbr; |
1731 | struct route_node *rn; | |
1732 | struct prefix p; | |
718e3744 | 1733 | |
d62a17ae | 1734 | if (oi->type != OSPF_IFTYPE_NBMA) |
1735 | return; | |
718e3744 | 1736 | |
d62a17ae | 1737 | if (nbr_nbma->nbr != NULL) |
1738 | return; | |
718e3744 | 1739 | |
d62a17ae | 1740 | if (IPV4_ADDR_SAME(&oi->nbr_self->address.u.prefix4, &nbr_nbma->addr)) |
1741 | return; | |
718e3744 | 1742 | |
d62a17ae | 1743 | nbr_nbma->oi = oi; |
1744 | listnode_add(oi->nbr_nbma, nbr_nbma); | |
718e3744 | 1745 | |
d62a17ae | 1746 | /* Get neighbor information from table. */ |
1747 | p.family = AF_INET; | |
1748 | p.prefixlen = IPV4_MAX_BITLEN; | |
1749 | p.u.prefix4 = nbr_nbma->addr; | |
718e3744 | 1750 | |
d62a17ae | 1751 | rn = route_node_get(oi->nbrs, (struct prefix *)&p); |
1752 | if (rn->info) { | |
1753 | nbr = rn->info; | |
1754 | nbr->nbr_nbma = nbr_nbma; | |
1755 | nbr_nbma->nbr = nbr; | |
718e3744 | 1756 | |
d62a17ae | 1757 | route_unlock_node(rn); |
1758 | } else { | |
1759 | nbr = rn->info = ospf_nbr_new(oi); | |
1760 | nbr->state = NSM_Down; | |
1761 | nbr->src = nbr_nbma->addr; | |
1762 | nbr->nbr_nbma = nbr_nbma; | |
1763 | nbr->priority = nbr_nbma->priority; | |
1764 | nbr->address = p; | |
718e3744 | 1765 | |
d62a17ae | 1766 | nbr_nbma->nbr = nbr; |
1767 | ||
1768 | OSPF_NSM_EVENT_EXECUTE(nbr, NSM_Start); | |
1769 | } | |
718e3744 | 1770 | } |
1771 | ||
d62a17ae | 1772 | void ospf_nbr_nbma_if_update(struct ospf *ospf, struct ospf_interface *oi) |
718e3744 | 1773 | { |
d62a17ae | 1774 | struct ospf_nbr_nbma *nbr_nbma; |
1775 | struct route_node *rn; | |
1776 | struct prefix_ipv4 p; | |
718e3744 | 1777 | |
d62a17ae | 1778 | if (oi->type != OSPF_IFTYPE_NBMA) |
1779 | return; | |
718e3744 | 1780 | |
d62a17ae | 1781 | for (rn = route_top(ospf->nbr_nbma); rn; rn = route_next(rn)) |
1782 | if ((nbr_nbma = rn->info)) | |
1783 | if (nbr_nbma->oi == NULL && nbr_nbma->nbr == NULL) { | |
1784 | p.family = AF_INET; | |
1785 | p.prefix = nbr_nbma->addr; | |
1786 | p.prefixlen = IPV4_MAX_BITLEN; | |
718e3744 | 1787 | |
d62a17ae | 1788 | if (prefix_match(oi->address, |
1789 | (struct prefix *)&p)) | |
1790 | ospf_nbr_nbma_add(nbr_nbma, oi); | |
1791 | } | |
718e3744 | 1792 | } |
1793 | ||
d62a17ae | 1794 | struct ospf_nbr_nbma *ospf_nbr_nbma_lookup(struct ospf *ospf, |
1795 | struct in_addr nbr_addr) | |
718e3744 | 1796 | { |
d62a17ae | 1797 | struct route_node *rn; |
1798 | struct prefix_ipv4 p; | |
718e3744 | 1799 | |
d62a17ae | 1800 | p.family = AF_INET; |
1801 | p.prefix = nbr_addr; | |
1802 | p.prefixlen = IPV4_MAX_BITLEN; | |
718e3744 | 1803 | |
d62a17ae | 1804 | rn = route_node_lookup(ospf->nbr_nbma, (struct prefix *)&p); |
1805 | if (rn) { | |
1806 | route_unlock_node(rn); | |
1807 | return rn->info; | |
1808 | } | |
1809 | return NULL; | |
718e3744 | 1810 | } |
1811 | ||
d62a17ae | 1812 | struct ospf_nbr_nbma *ospf_nbr_nbma_lookup_next(struct ospf *ospf, |
1813 | struct in_addr *addr, int first) | |
718e3744 | 1814 | { |
1815 | #if 0 | |
1816 | struct ospf_nbr_nbma *nbr_nbma; | |
52dc7ee6 | 1817 | struct listnode *node; |
718e3744 | 1818 | #endif |
1819 | ||
d62a17ae | 1820 | if (ospf == NULL) |
1821 | return NULL; | |
718e3744 | 1822 | |
1823 | #if 0 | |
1eb8ef25 | 1824 | for (ALL_LIST_ELEMENTS_RO (ospf->nbr_nbma, node, nbr_nbma)) |
718e3744 | 1825 | { |
718e3744 | 1826 | if (first) |
1827 | { | |
1828 | *addr = nbr_nbma->addr; | |
1829 | return nbr_nbma; | |
1830 | } | |
1831 | else if (ntohl (nbr_nbma->addr.s_addr) > ntohl (addr->s_addr)) | |
1832 | { | |
1833 | *addr = nbr_nbma->addr; | |
1834 | return nbr_nbma; | |
1835 | } | |
1836 | } | |
1837 | #endif | |
d62a17ae | 1838 | return NULL; |
718e3744 | 1839 | } |
1840 | ||
d62a17ae | 1841 | int ospf_nbr_nbma_set(struct ospf *ospf, struct in_addr nbr_addr) |
718e3744 | 1842 | { |
d62a17ae | 1843 | struct ospf_nbr_nbma *nbr_nbma; |
1844 | struct ospf_interface *oi; | |
1845 | struct prefix_ipv4 p; | |
1846 | struct route_node *rn; | |
1847 | struct listnode *node; | |
718e3744 | 1848 | |
d62a17ae | 1849 | nbr_nbma = ospf_nbr_nbma_lookup(ospf, nbr_addr); |
1850 | if (nbr_nbma) | |
1851 | return 0; | |
718e3744 | 1852 | |
d62a17ae | 1853 | nbr_nbma = ospf_nbr_nbma_new(); |
1854 | nbr_nbma->addr = nbr_addr; | |
718e3744 | 1855 | |
d62a17ae | 1856 | p.family = AF_INET; |
1857 | p.prefix = nbr_addr; | |
1858 | p.prefixlen = IPV4_MAX_BITLEN; | |
718e3744 | 1859 | |
d62a17ae | 1860 | rn = route_node_get(ospf->nbr_nbma, (struct prefix *)&p); |
1861 | if (rn->info) | |
1862 | route_unlock_node(rn); | |
1863 | rn->info = nbr_nbma; | |
718e3744 | 1864 | |
d62a17ae | 1865 | for (ALL_LIST_ELEMENTS_RO(ospf->oiflist, node, oi)) { |
1866 | if (oi->type == OSPF_IFTYPE_NBMA) | |
1867 | if (prefix_match(oi->address, (struct prefix *)&p)) { | |
1868 | ospf_nbr_nbma_add(nbr_nbma, oi); | |
1869 | break; | |
1870 | } | |
1871 | } | |
718e3744 | 1872 | |
d62a17ae | 1873 | return 1; |
718e3744 | 1874 | } |
1875 | ||
d62a17ae | 1876 | int ospf_nbr_nbma_unset(struct ospf *ospf, struct in_addr nbr_addr) |
718e3744 | 1877 | { |
d62a17ae | 1878 | struct ospf_nbr_nbma *nbr_nbma; |
718e3744 | 1879 | |
d62a17ae | 1880 | nbr_nbma = ospf_nbr_nbma_lookup(ospf, nbr_addr); |
1881 | if (nbr_nbma == NULL) | |
1882 | return 0; | |
718e3744 | 1883 | |
d62a17ae | 1884 | ospf_nbr_nbma_down(nbr_nbma); |
1885 | ospf_nbr_nbma_delete(ospf, nbr_nbma); | |
718e3744 | 1886 | |
d62a17ae | 1887 | return 1; |
718e3744 | 1888 | } |
1889 | ||
d62a17ae | 1890 | int ospf_nbr_nbma_priority_set(struct ospf *ospf, struct in_addr nbr_addr, |
1891 | u_char priority) | |
718e3744 | 1892 | { |
d62a17ae | 1893 | struct ospf_nbr_nbma *nbr_nbma; |
718e3744 | 1894 | |
d62a17ae | 1895 | nbr_nbma = ospf_nbr_nbma_lookup(ospf, nbr_addr); |
1896 | if (nbr_nbma == NULL) | |
1897 | return 0; | |
718e3744 | 1898 | |
d62a17ae | 1899 | if (nbr_nbma->priority != priority) |
1900 | nbr_nbma->priority = priority; | |
718e3744 | 1901 | |
d62a17ae | 1902 | return 1; |
718e3744 | 1903 | } |
1904 | ||
d62a17ae | 1905 | int ospf_nbr_nbma_priority_unset(struct ospf *ospf, struct in_addr nbr_addr) |
718e3744 | 1906 | { |
d62a17ae | 1907 | struct ospf_nbr_nbma *nbr_nbma; |
718e3744 | 1908 | |
d62a17ae | 1909 | nbr_nbma = ospf_nbr_nbma_lookup(ospf, nbr_addr); |
1910 | if (nbr_nbma == NULL) | |
1911 | return 0; | |
718e3744 | 1912 | |
d62a17ae | 1913 | if (nbr_nbma != OSPF_NEIGHBOR_PRIORITY_DEFAULT) |
1914 | nbr_nbma->priority = OSPF_NEIGHBOR_PRIORITY_DEFAULT; | |
718e3744 | 1915 | |
d62a17ae | 1916 | return 1; |
718e3744 | 1917 | } |
1918 | ||
d62a17ae | 1919 | int ospf_nbr_nbma_poll_interval_set(struct ospf *ospf, struct in_addr nbr_addr, |
1920 | unsigned int interval) | |
718e3744 | 1921 | { |
d62a17ae | 1922 | struct ospf_nbr_nbma *nbr_nbma; |
718e3744 | 1923 | |
d62a17ae | 1924 | nbr_nbma = ospf_nbr_nbma_lookup(ospf, nbr_addr); |
1925 | if (nbr_nbma == NULL) | |
1926 | return 0; | |
718e3744 | 1927 | |
d62a17ae | 1928 | if (nbr_nbma->v_poll != interval) { |
1929 | nbr_nbma->v_poll = interval; | |
1930 | if (nbr_nbma->oi && ospf_if_is_up(nbr_nbma->oi)) { | |
1931 | OSPF_TIMER_OFF(nbr_nbma->t_poll); | |
1932 | OSPF_POLL_TIMER_ON(nbr_nbma->t_poll, ospf_poll_timer, | |
1933 | nbr_nbma->v_poll); | |
1934 | } | |
718e3744 | 1935 | } |
718e3744 | 1936 | |
d62a17ae | 1937 | return 1; |
718e3744 | 1938 | } |
1939 | ||
d62a17ae | 1940 | int ospf_nbr_nbma_poll_interval_unset(struct ospf *ospf, struct in_addr addr) |
718e3744 | 1941 | { |
d62a17ae | 1942 | struct ospf_nbr_nbma *nbr_nbma; |
718e3744 | 1943 | |
d62a17ae | 1944 | nbr_nbma = ospf_nbr_nbma_lookup(ospf, addr); |
1945 | if (nbr_nbma == NULL) | |
1946 | return 0; | |
718e3744 | 1947 | |
d62a17ae | 1948 | if (nbr_nbma->v_poll != OSPF_POLL_INTERVAL_DEFAULT) |
1949 | nbr_nbma->v_poll = OSPF_POLL_INTERVAL_DEFAULT; | |
718e3744 | 1950 | |
d62a17ae | 1951 | return 1; |
718e3744 | 1952 | } |
1953 | ||
d62a17ae | 1954 | void ospf_master_init(struct thread_master *master) |
718e3744 | 1955 | { |
d62a17ae | 1956 | memset(&ospf_master, 0, sizeof(struct ospf_master)); |
020709f9 | 1957 | |
d62a17ae | 1958 | om = &ospf_master; |
1959 | om->ospf = list_new(); | |
1960 | om->master = master; | |
020709f9 | 1961 | } |
b5a8894d CS |
1962 | |
1963 | /* Link OSPF instance to VRF. */ | |
1964 | void ospf_vrf_link(struct ospf *ospf, struct vrf *vrf) | |
1965 | { | |
1966 | ospf->vrf_id = vrf->vrf_id; | |
1967 | if (vrf->info != (void *)ospf) | |
1968 | vrf->info = (void *)ospf; | |
1969 | } | |
1970 | ||
1971 | /* Unlink OSPF instance from VRF. */ | |
1972 | void ospf_vrf_unlink(struct ospf *ospf, struct vrf *vrf) | |
1973 | { | |
1974 | if (vrf->info == (void *)ospf) | |
1975 | vrf->info = NULL; | |
1976 | ospf->vrf_id = VRF_UNKNOWN; | |
1977 | } | |
1978 | ||
1979 | /* This is hook function for vrf create called as part of vrf_init */ | |
1980 | static int ospf_vrf_new(struct vrf *vrf) | |
1981 | { | |
1982 | if (IS_DEBUG_OSPF_EVENT) | |
1983 | zlog_debug("%s: VRF Created: %s(%d)", __PRETTY_FUNCTION__, | |
1984 | vrf->name, vrf->vrf_id); | |
1985 | ||
1986 | return 0; | |
1987 | } | |
1988 | ||
1989 | /* This is hook function for vrf delete call as part of vrf_init */ | |
1990 | static int ospf_vrf_delete(struct vrf *vrf) | |
1991 | { | |
1992 | if (IS_DEBUG_OSPF_EVENT) | |
1993 | zlog_debug("%s: VRF Deletion: %s(%d)", __PRETTY_FUNCTION__, | |
1994 | vrf->name, vrf->vrf_id); | |
1995 | ||
1996 | return 0; | |
1997 | } | |
1998 | ||
1999 | /* Enable OSPF VRF instance */ | |
2000 | static int ospf_vrf_enable(struct vrf *vrf) | |
2001 | { | |
2002 | struct ospf *ospf = NULL; | |
2003 | vrf_id_t old_vrf_id = VRF_DEFAULT; | |
2004 | ||
2005 | if (IS_DEBUG_OSPF_EVENT) | |
2006 | zlog_debug("%s: VRF %s id %d enabled", | |
2007 | __PRETTY_FUNCTION__, vrf->name, vrf->vrf_id); | |
2008 | ||
2009 | ospf = ospf_lookup_by_name(vrf->name); | |
2010 | if (ospf) { | |
2011 | old_vrf_id = ospf->vrf_id; | |
2012 | /* We have instance configured, link to VRF and make it "up". */ | |
2013 | ospf_vrf_link(ospf, vrf); | |
2014 | if (IS_DEBUG_OSPF_EVENT) | |
2015 | zlog_debug("%s: ospf linked to vrf %s vrf_id %d (old id %d)", | |
2016 | __PRETTY_FUNCTION__, vrf->name, ospf->vrf_id, | |
2017 | old_vrf_id); | |
2018 | ||
2019 | if (old_vrf_id != ospf->vrf_id) { | |
e7503eab CS |
2020 | if (ospfd_privs.change(ZPRIVS_RAISE)) { |
2021 | zlog_err("ospf_sock_init: could not raise privs, %s", | |
2022 | safe_strerror(errno)); | |
2023 | } | |
2024 | if (ospf_bind_vrfdevice(ospf, ospf->fd) < 0) | |
2025 | return 0; | |
2026 | if (ospfd_privs.change(ZPRIVS_LOWER)) { | |
2027 | zlog_err("ospf_sock_init: could not lower privs, %s", | |
2028 | safe_strerror(errno)); | |
2029 | } | |
2030 | ||
b5a8894d CS |
2031 | ospf->oi_running = 1; |
2032 | ospf_router_id_update(ospf); | |
2033 | } | |
2034 | } | |
2035 | ||
2036 | return 0; | |
2037 | } | |
2038 | ||
2039 | /* Disable OSPF VRF instance */ | |
2040 | static int ospf_vrf_disable(struct vrf *vrf) | |
2041 | { | |
2042 | struct ospf *ospf = NULL; | |
2043 | vrf_id_t old_vrf_id = VRF_UNKNOWN; | |
2044 | ||
2045 | if (vrf->vrf_id == VRF_DEFAULT) | |
2046 | return 0; | |
2047 | ||
2048 | if (IS_DEBUG_OSPF_EVENT) | |
2049 | zlog_debug("%s: VRF %s id %d disabled.", | |
2050 | __PRETTY_FUNCTION__, vrf->name, vrf->vrf_id); | |
2051 | ||
2052 | ospf = ospf_lookup_by_name(vrf->name); | |
2053 | if (ospf) { | |
2054 | old_vrf_id = ospf->vrf_id; | |
2055 | ||
2056 | /* We have instance configured, unlink | |
2057 | * from VRF and make it "down". | |
2058 | */ | |
2059 | ospf_vrf_unlink(ospf, vrf); | |
2060 | ospf->oi_running = 0; | |
2061 | if (IS_DEBUG_OSPF_EVENT) | |
2062 | zlog_debug("%s: ospf old_vrf_id %d unlinked", | |
2063 | __PRETTY_FUNCTION__, old_vrf_id); | |
2064 | } | |
2065 | ||
2066 | /* Note: This is a callback, the VRF will be deleted by the caller. */ | |
2067 | return 0; | |
2068 | } | |
2069 | ||
2070 | void ospf_vrf_init(void) | |
2071 | { | |
2072 | vrf_init(ospf_vrf_new, ospf_vrf_enable, | |
2073 | ospf_vrf_disable, ospf_vrf_delete); | |
2074 | } | |
2075 | ||
2076 | void ospf_vrf_terminate(void) | |
2077 | { | |
2078 | vrf_terminate(); | |
2079 | } | |
2080 | ||
2081 | const char *ospf_vrf_id_to_name(vrf_id_t vrf_id) | |
2082 | { | |
2083 | struct vrf *vrf = vrf_lookup_by_id(vrf_id); | |
2084 | ||
2085 | return vrf ? vrf->name : "NIL"; | |
2086 | } |