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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 */ | |
f4e14fdb | 213 | RB_FOREACH (ifp, if_name_head, &vrf->ifaces_by_name) |
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 */ |
f4e14fdb | 627 | RB_FOREACH (ifp, if_name_head, &vrf->ifaces_by_name) { |
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); | |
718e3744 | 638 | |
b5a8894d CS |
639 | /* De-Register VRF */ |
640 | ospf_zebra_vrf_deregister(ospf); | |
641 | ||
d62a17ae | 642 | /* Clear static neighbors */ |
643 | for (rn = route_top(ospf->nbr_nbma); rn; rn = route_next(rn)) | |
644 | if ((nbr_nbma = rn->info)) { | |
645 | OSPF_POLL_TIMER_OFF(nbr_nbma->t_poll); | |
718e3744 | 646 | |
d62a17ae | 647 | if (nbr_nbma->nbr) { |
648 | nbr_nbma->nbr->nbr_nbma = NULL; | |
649 | nbr_nbma->nbr = NULL; | |
650 | } | |
651 | ||
652 | if (nbr_nbma->oi) { | |
653 | listnode_delete(nbr_nbma->oi->nbr_nbma, | |
654 | nbr_nbma); | |
655 | nbr_nbma->oi = NULL; | |
656 | } | |
657 | ||
658 | XFREE(MTYPE_OSPF_NEIGHBOR_STATIC, nbr_nbma); | |
659 | } | |
660 | ||
661 | route_table_finish(ospf->nbr_nbma); | |
662 | ||
663 | /* Clear networks and Areas. */ | |
664 | for (rn = route_top(ospf->networks); rn; rn = route_next(rn)) { | |
665 | struct ospf_network *network; | |
666 | ||
667 | if ((network = rn->info) != NULL) { | |
668 | ospf_network_free(ospf, network); | |
669 | rn->info = NULL; | |
670 | route_unlock_node(rn); | |
671 | } | |
91e6a0e5 | 672 | } |
7f586094 | 673 | route_table_finish(ospf->networks); |
718e3744 | 674 | |
d62a17ae | 675 | for (ALL_LIST_ELEMENTS(ospf->areas, node, nnode, area)) { |
676 | listnode_delete(ospf->areas, area); | |
677 | ospf_area_free(area); | |
678 | } | |
718e3744 | 679 | |
d62a17ae | 680 | /* Cancel all timers. */ |
681 | OSPF_TIMER_OFF(ospf->t_external_lsa); | |
682 | OSPF_TIMER_OFF(ospf->t_spf_calc); | |
683 | OSPF_TIMER_OFF(ospf->t_ase_calc); | |
684 | OSPF_TIMER_OFF(ospf->t_maxage); | |
685 | OSPF_TIMER_OFF(ospf->t_maxage_walker); | |
686 | OSPF_TIMER_OFF(ospf->t_abr_task); | |
687 | OSPF_TIMER_OFF(ospf->t_asbr_check); | |
688 | OSPF_TIMER_OFF(ospf->t_distribute_update); | |
689 | OSPF_TIMER_OFF(ospf->t_lsa_refresher); | |
690 | OSPF_TIMER_OFF(ospf->t_read); | |
691 | OSPF_TIMER_OFF(ospf->t_write); | |
692 | OSPF_TIMER_OFF(ospf->t_opaque_lsa_self); | |
693 | ||
694 | close(ospf->fd); | |
695 | stream_free(ospf->ibuf); | |
696 | ||
697 | LSDB_LOOP(OPAQUE_AS_LSDB(ospf), rn, lsa) | |
698 | ospf_discard_from_db(ospf, ospf->lsdb, lsa); | |
699 | LSDB_LOOP(EXTERNAL_LSDB(ospf), rn, lsa) | |
700 | ospf_discard_from_db(ospf, ospf->lsdb, lsa); | |
701 | ||
702 | ospf_lsdb_delete_all(ospf->lsdb); | |
703 | ospf_lsdb_free(ospf->lsdb); | |
704 | ||
705 | for (rn = route_top(ospf->maxage_lsa); rn; rn = route_next(rn)) { | |
706 | struct ospf_lsa *lsa; | |
707 | ||
708 | if ((lsa = rn->info) != NULL) { | |
709 | ospf_lsa_unlock(&lsa); | |
710 | rn->info = NULL; | |
711 | } | |
712 | route_unlock_node(rn); | |
713 | } | |
714 | route_table_finish(ospf->maxage_lsa); | |
715 | ||
716 | if (ospf->old_table) | |
717 | ospf_route_table_free(ospf->old_table); | |
718 | if (ospf->new_table) { | |
b5a8894d | 719 | ospf_route_delete(ospf, ospf->new_table); |
d62a17ae | 720 | ospf_route_table_free(ospf->new_table); |
721 | } | |
722 | if (ospf->old_rtrs) | |
723 | ospf_rtrs_free(ospf->old_rtrs); | |
724 | if (ospf->new_rtrs) | |
725 | ospf_rtrs_free(ospf->new_rtrs); | |
726 | if (ospf->new_external_route) { | |
b5a8894d | 727 | ospf_route_delete(ospf, ospf->new_external_route); |
d62a17ae | 728 | ospf_route_table_free(ospf->new_external_route); |
729 | } | |
730 | if (ospf->old_external_route) { | |
b5a8894d | 731 | ospf_route_delete(ospf, ospf->old_external_route); |
d62a17ae | 732 | ospf_route_table_free(ospf->old_external_route); |
733 | } | |
734 | if (ospf->external_lsas) { | |
735 | ospf_ase_external_lsas_finish(ospf->external_lsas); | |
736 | } | |
718e3744 | 737 | |
affe9e99 DS |
738 | list_delete_and_null(&ospf->areas); |
739 | list_delete_and_null(&ospf->oi_write_q); | |
740 | list_delete_and_null(&ospf->oiflist); | |
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 | ||
832 | /* Free LSDBs. */ | |
833 | LSDB_LOOP(ROUTER_LSDB(area), rn, lsa) | |
834 | ospf_discard_from_db(area->ospf, area->lsdb, lsa); | |
835 | LSDB_LOOP(NETWORK_LSDB(area), rn, lsa) | |
836 | ospf_discard_from_db(area->ospf, area->lsdb, lsa); | |
837 | LSDB_LOOP(SUMMARY_LSDB(area), rn, lsa) | |
838 | ospf_discard_from_db(area->ospf, area->lsdb, lsa); | |
839 | LSDB_LOOP(ASBR_SUMMARY_LSDB(area), rn, lsa) | |
840 | ospf_discard_from_db(area->ospf, area->lsdb, lsa); | |
68980084 | 841 | |
d62a17ae | 842 | LSDB_LOOP(NSSA_LSDB(area), rn, lsa) |
843 | ospf_discard_from_db(area->ospf, area->lsdb, lsa); | |
844 | LSDB_LOOP(OPAQUE_AREA_LSDB(area), rn, lsa) | |
845 | ospf_discard_from_db(area->ospf, area->lsdb, lsa); | |
846 | LSDB_LOOP(OPAQUE_LINK_LSDB(area), rn, lsa) | |
847 | ospf_discard_from_db(area->ospf, area->lsdb, lsa); | |
718e3744 | 848 | |
7f586094 | 849 | ospf_opaque_type10_lsa_term(area); |
d62a17ae | 850 | ospf_lsdb_delete_all(area->lsdb); |
851 | ospf_lsdb_free(area->lsdb); | |
718e3744 | 852 | |
d62a17ae | 853 | ospf_lsa_unlock(&area->router_lsa_self); |
718e3744 | 854 | |
d62a17ae | 855 | route_table_finish(area->ranges); |
affe9e99 | 856 | list_delete_and_null(&area->oiflist); |
718e3744 | 857 | |
d62a17ae | 858 | if (EXPORT_NAME(area)) |
859 | free(EXPORT_NAME(area)); | |
718e3744 | 860 | |
d62a17ae | 861 | if (IMPORT_NAME(area)) |
862 | free(IMPORT_NAME(area)); | |
718e3744 | 863 | |
d62a17ae | 864 | /* Cancel timer. */ |
865 | OSPF_TIMER_OFF(area->t_stub_router); | |
866 | OSPF_TIMER_OFF(area->t_opaque_lsa_self); | |
718e3744 | 867 | |
d62a17ae | 868 | if (OSPF_IS_AREA_BACKBONE(area)) |
869 | area->ospf->backbone = NULL; | |
870 | ||
871 | XFREE(MTYPE_OSPF_AREA, area); | |
718e3744 | 872 | } |
873 | ||
d62a17ae | 874 | void ospf_area_check_free(struct ospf *ospf, struct in_addr area_id) |
718e3744 | 875 | { |
d62a17ae | 876 | struct ospf_area *area; |
718e3744 | 877 | |
d62a17ae | 878 | area = ospf_area_lookup_by_area_id(ospf, area_id); |
879 | if (area && listcount(area->oiflist) == 0 && area->ranges->top == NULL | |
880 | && area->shortcut_configured == OSPF_SHORTCUT_DEFAULT | |
881 | && area->external_routing == OSPF_AREA_DEFAULT | |
882 | && area->no_summary == 0 && area->default_cost == 1 | |
883 | && EXPORT_NAME(area) == NULL && IMPORT_NAME(area) == NULL | |
884 | && area->auth_type == OSPF_AUTH_NULL) { | |
885 | listnode_delete(ospf->areas, area); | |
886 | ospf_area_free(area); | |
887 | } | |
718e3744 | 888 | } |
889 | ||
d62a17ae | 890 | struct ospf_area *ospf_area_get(struct ospf *ospf, struct in_addr area_id) |
718e3744 | 891 | { |
d62a17ae | 892 | struct ospf_area *area; |
893 | ||
894 | area = ospf_area_lookup_by_area_id(ospf, area_id); | |
895 | if (!area) { | |
896 | area = ospf_area_new(ospf, area_id); | |
897 | listnode_add_sort(ospf->areas, area); | |
898 | ospf_check_abr_status(ospf); | |
899 | if (ospf->stub_router_admin_set | |
900 | == OSPF_STUB_ROUTER_ADMINISTRATIVE_SET) { | |
901 | SET_FLAG(area->stub_router_state, | |
902 | OSPF_AREA_ADMIN_STUB_ROUTED); | |
903 | } | |
904 | } | |
718e3744 | 905 | |
d62a17ae | 906 | return area; |
718e3744 | 907 | } |
908 | ||
d62a17ae | 909 | struct ospf_area *ospf_area_lookup_by_area_id(struct ospf *ospf, |
910 | struct in_addr area_id) | |
718e3744 | 911 | { |
d62a17ae | 912 | struct ospf_area *area; |
913 | struct listnode *node; | |
718e3744 | 914 | |
d62a17ae | 915 | for (ALL_LIST_ELEMENTS_RO(ospf->areas, node, area)) |
916 | if (IPV4_ADDR_SAME(&area->area_id, &area_id)) | |
917 | return area; | |
718e3744 | 918 | |
d62a17ae | 919 | return NULL; |
718e3744 | 920 | } |
921 | ||
d62a17ae | 922 | void ospf_area_add_if(struct ospf_area *area, struct ospf_interface *oi) |
718e3744 | 923 | { |
d62a17ae | 924 | listnode_add(area->oiflist, oi); |
718e3744 | 925 | } |
926 | ||
d62a17ae | 927 | void ospf_area_del_if(struct ospf_area *area, struct ospf_interface *oi) |
718e3744 | 928 | { |
d62a17ae | 929 | listnode_delete(area->oiflist, oi); |
718e3744 | 930 | } |
931 | ||
52c62ab8 | 932 | |
d62a17ae | 933 | static void add_ospf_interface(struct connected *co, struct ospf_area *area) |
953cde65 | 934 | { |
d62a17ae | 935 | struct ospf_interface *oi; |
953cde65 | 936 | |
d62a17ae | 937 | oi = ospf_if_new(area->ospf, co->ifp, co->address); |
938 | oi->connected = co; | |
953cde65 | 939 | |
d62a17ae | 940 | oi->area = area; |
953cde65 | 941 | |
d62a17ae | 942 | oi->params = ospf_lookup_if_params(co->ifp, oi->address->u.prefix4); |
943 | oi->output_cost = ospf_if_get_output_cost(oi); | |
953cde65 | 944 | |
d62a17ae | 945 | /* Relate ospf interface to ospf instance. */ |
946 | oi->ospf = area->ospf; | |
953cde65 | 947 | |
d62a17ae | 948 | /* update network type as interface flag */ |
949 | /* If network type is specified previously, | |
950 | skip network type setting. */ | |
951 | oi->type = IF_DEF_PARAMS(co->ifp)->type; | |
953cde65 | 952 | |
d62a17ae | 953 | /* Add pseudo neighbor. */ |
954 | ospf_nbr_self_reset(oi, oi->ospf->router_id); | |
953cde65 | 955 | |
d62a17ae | 956 | ospf_area_add_if(oi->area, oi); |
52c62ab8 | 957 | |
d62a17ae | 958 | /* |
959 | * if router_id is not configured, dont bring up | |
960 | * interfaces. | |
961 | * ospf_router_id_update() will call ospf_if_update | |
962 | * whenever r-id is configured instead. | |
963 | */ | |
964 | if ((area->ospf->router_id.s_addr != 0) && if_is_operative(co->ifp)) | |
965 | ospf_if_up(oi); | |
953cde65 JT |
966 | } |
967 | ||
968 | static void update_redistributed(struct ospf *ospf, int add_to_ospf) | |
969 | { | |
d62a17ae | 970 | struct route_node *rn; |
971 | struct external_info *ei; | |
972 | struct ospf_external *ext; | |
973 | ||
b5a8894d | 974 | if (ospf_is_type_redistributed(ospf, ZEBRA_ROUTE_CONNECT, 0)) |
d62a17ae | 975 | if ((ext = ospf_external_lookup(ZEBRA_ROUTE_CONNECT, 0)) |
976 | && EXTERNAL_INFO(ext)) { | |
977 | for (rn = route_top(EXTERNAL_INFO(ext)); rn; | |
978 | rn = route_next(rn)) { | |
979 | if ((ei = rn->info) != NULL) { | |
980 | if (add_to_ospf) { | |
981 | if (ospf_external_info_find_lsa( | |
982 | ospf, &ei->p)) | |
983 | if (!ospf_distribute_check_connected( | |
984 | ospf, ei)) | |
985 | ospf_external_lsa_flush( | |
986 | ospf, | |
987 | ei->type, | |
988 | &ei->p, | |
989 | ei->ifindex /*, ei->nexthop */); | |
990 | } else { | |
991 | if (!ospf_external_info_find_lsa( | |
992 | ospf, &ei->p)) | |
993 | if (ospf_distribute_check_connected( | |
994 | ospf, ei)) | |
995 | ospf_external_lsa_originate( | |
996 | ospf, | |
997 | ei); | |
998 | } | |
999 | } | |
1000 | } | |
1001 | } | |
953cde65 JT |
1002 | } |
1003 | ||
718e3744 | 1004 | /* Config network statement related functions. */ |
d62a17ae | 1005 | static struct ospf_network *ospf_network_new(struct in_addr area_id) |
718e3744 | 1006 | { |
d62a17ae | 1007 | struct ospf_network *new; |
1008 | new = XCALLOC(MTYPE_OSPF_NETWORK, sizeof(struct ospf_network)); | |
718e3744 | 1009 | |
d62a17ae | 1010 | new->area_id = area_id; |
1011 | new->area_id_fmt = OSPF_AREA_ID_FMT_DOTTEDQUAD; | |
1012 | ||
1013 | return new; | |
718e3744 | 1014 | } |
1015 | ||
d62a17ae | 1016 | static void ospf_network_free(struct ospf *ospf, struct ospf_network *network) |
718e3744 | 1017 | { |
d62a17ae | 1018 | ospf_area_check_free(ospf, network->area_id); |
1019 | ospf_schedule_abr_task(ospf); | |
1020 | XFREE(MTYPE_OSPF_NETWORK, network); | |
718e3744 | 1021 | } |
1022 | ||
d62a17ae | 1023 | int ospf_network_set(struct ospf *ospf, struct prefix_ipv4 *p, |
1024 | struct in_addr area_id, int df) | |
718e3744 | 1025 | { |
d62a17ae | 1026 | struct ospf_network *network; |
1027 | struct ospf_area *area; | |
1028 | struct route_node *rn; | |
718e3744 | 1029 | |
d62a17ae | 1030 | rn = route_node_get(ospf->networks, (struct prefix *)p); |
1031 | if (rn->info) { | |
1032 | /* There is already same network statement. */ | |
1033 | route_unlock_node(rn); | |
1034 | return 0; | |
1035 | } | |
718e3744 | 1036 | |
d62a17ae | 1037 | rn->info = network = ospf_network_new(area_id); |
1038 | network->area_id_fmt = df; | |
1039 | area = ospf_area_get(ospf, area_id); | |
1040 | ospf_area_display_format_set(ospf, area, df); | |
718e3744 | 1041 | |
d62a17ae | 1042 | /* Run network config now. */ |
1043 | ospf_network_run((struct prefix *)p, area); | |
718e3744 | 1044 | |
d62a17ae | 1045 | /* Update connected redistribute. */ |
1046 | update_redistributed(ospf, 1); /* interfaces possibly added */ | |
718e3744 | 1047 | |
d62a17ae | 1048 | ospf_area_check_free(ospf, area_id); |
718e3744 | 1049 | |
d62a17ae | 1050 | return 1; |
718e3744 | 1051 | } |
1052 | ||
d62a17ae | 1053 | int ospf_network_unset(struct ospf *ospf, struct prefix_ipv4 *p, |
1054 | struct in_addr area_id) | |
718e3744 | 1055 | { |
d62a17ae | 1056 | struct route_node *rn; |
1057 | struct ospf_network *network; | |
1058 | struct listnode *node, *nnode; | |
1059 | struct ospf_interface *oi; | |
718e3744 | 1060 | |
d62a17ae | 1061 | rn = route_node_lookup(ospf->networks, (struct prefix *)p); |
1062 | if (rn == NULL) | |
1063 | return 0; | |
718e3744 | 1064 | |
d62a17ae | 1065 | network = rn->info; |
1066 | route_unlock_node(rn); | |
1067 | if (!IPV4_ADDR_SAME(&area_id, &network->area_id)) | |
1068 | return 0; | |
718e3744 | 1069 | |
d62a17ae | 1070 | ospf_network_free(ospf, rn->info); |
1071 | rn->info = NULL; | |
1072 | route_unlock_node(rn); /* initial reference */ | |
718e3744 | 1073 | |
30c0daa4 | 1074 | /* Find interfaces that are not configured already. */ |
d62a17ae | 1075 | for (ALL_LIST_ELEMENTS(ospf->oiflist, node, nnode, oi)) { |
30c0daa4 JAG |
1076 | |
1077 | if (oi->type == OSPF_IFTYPE_VIRTUALLINK) | |
1078 | continue; | |
1079 | ||
1080 | ospf_network_run_subnet(ospf, oi->connected, NULL, NULL); | |
d62a17ae | 1081 | } |
953cde65 | 1082 | |
d62a17ae | 1083 | /* Update connected redistribute. */ |
1084 | update_redistributed(ospf, 0); /* interfaces possibly removed */ | |
1085 | ospf_area_check_free(ospf, area_id); | |
1086 | ||
1087 | return 1; | |
953cde65 JT |
1088 | } |
1089 | ||
52c62ab8 JAG |
1090 | /* Ensure there's an OSPF instance, as "ip ospf area" enabled OSPF means |
1091 | * there might not be any 'router ospf' config. | |
1092 | * | |
1093 | * Otherwise, doesn't do anything different to ospf_if_update for now | |
1094 | */ | |
b5a8894d | 1095 | void ospf_interface_area_set(struct ospf *ospf, struct interface *ifp) |
953cde65 | 1096 | { |
b5a8894d CS |
1097 | if (!ospf) |
1098 | return; | |
d62a17ae | 1099 | |
1100 | ospf_if_update(ospf, ifp); | |
1101 | /* if_update does a update_redistributed */ | |
1102 | ||
1103 | return; | |
953cde65 JT |
1104 | } |
1105 | ||
b5a8894d | 1106 | void ospf_interface_area_unset(struct ospf *ospf, struct interface *ifp) |
953cde65 | 1107 | { |
d62a17ae | 1108 | struct route_node *rn_oi; |
953cde65 | 1109 | |
d62a17ae | 1110 | if (!ospf) |
1111 | return; /* Ospf not ready yet */ | |
953cde65 | 1112 | |
d62a17ae | 1113 | /* Find interfaces that may need to be removed. */ |
1114 | for (rn_oi = route_top(IF_OIFS(ifp)); rn_oi; | |
1115 | rn_oi = route_next(rn_oi)) { | |
b5a8894d | 1116 | struct ospf_interface *oi = NULL; |
d62a17ae | 1117 | |
1118 | if ((oi = rn_oi->info) == NULL) | |
1119 | continue; | |
1120 | ||
1121 | if (oi->type == OSPF_IFTYPE_VIRTUALLINK) | |
1122 | continue; | |
1123 | ||
1124 | ospf_network_run_subnet(ospf, oi->connected, NULL, NULL); | |
1125 | } | |
953cde65 | 1126 | |
d62a17ae | 1127 | /* Update connected redistribute. */ |
1128 | update_redistributed(ospf, 0); /* interfaces possibly removed */ | |
718e3744 | 1129 | } |
1130 | ||
570f7598 | 1131 | /* Check whether interface matches given network |
1132 | * returns: 1, true. 0, false | |
1133 | */ | |
d62a17ae | 1134 | static int ospf_network_match_iface(const struct connected *co, |
1135 | const struct prefix *net) | |
570f7598 | 1136 | { |
d62a17ae | 1137 | /* new approach: more elegant and conceptually clean */ |
1138 | return prefix_match_network_statement(net, CONNECTED_PREFIX(co)); | |
570f7598 | 1139 | } |
1140 | ||
d62a17ae | 1141 | static void ospf_update_interface_area(struct connected *co, |
1142 | struct ospf_area *area) | |
52c62ab8 | 1143 | { |
d62a17ae | 1144 | struct ospf_interface *oi = ospf_if_table_lookup(co->ifp, co->address); |
1145 | ||
1146 | /* nothing to be done case */ | |
1147 | if (oi && oi->area == area) { | |
1148 | return; | |
1149 | } | |
1150 | ||
1151 | if (oi) | |
1152 | ospf_if_free(oi); | |
1153 | ||
1154 | add_ospf_interface(co, area); | |
52c62ab8 JAG |
1155 | } |
1156 | ||
1157 | /* Run OSPF for the given subnet, taking into account the following | |
1158 | * possible sources of area configuration, in the given order of preference: | |
1159 | * | |
1160 | * - Whether there is interface+address specific area configuration | |
1161 | * - Whether there is a default area for the interface | |
1162 | * - Whether there is an area given as a parameter. | |
1163 | * - If no specific network prefix/area is supplied, whether there's | |
1164 | * a matching network configured. | |
1165 | */ | |
d62a17ae | 1166 | static void ospf_network_run_subnet(struct ospf *ospf, struct connected *co, |
1167 | struct prefix *p, | |
1168 | struct ospf_area *given_area) | |
1169 | { | |
1170 | struct ospf_interface *oi; | |
1171 | struct ospf_if_params *params; | |
1172 | struct ospf_area *area = NULL; | |
1173 | struct route_node *rn; | |
1174 | int configed = 0; | |
1175 | ||
1176 | if (CHECK_FLAG(co->flags, ZEBRA_IFA_SECONDARY)) | |
1177 | return; | |
1178 | ||
1179 | if (co->address->family != AF_INET) | |
1180 | return; | |
1181 | ||
1182 | /* Try determine the appropriate area for this interface + address | |
1183 | * Start by checking interface config | |
1184 | */ | |
1185 | params = ospf_lookup_if_params(co->ifp, co->address->u.prefix4); | |
1186 | if (params && OSPF_IF_PARAM_CONFIGURED(params, if_area)) | |
1187 | area = ospf_area_get(ospf, params->if_area); | |
1188 | else { | |
1189 | params = IF_DEF_PARAMS(co->ifp); | |
1190 | if (OSPF_IF_PARAM_CONFIGURED(params, if_area)) | |
1191 | area = ospf_area_get(ospf, params->if_area); | |
1192 | } | |
52c62ab8 | 1193 | |
d62a17ae | 1194 | /* If we've found an interface and/or addr specific area, then we're |
1195 | * done | |
1196 | */ | |
1197 | if (area) { | |
1198 | ospf_update_interface_area(co, area); | |
1199 | return; | |
1200 | } | |
718e3744 | 1201 | |
d62a17ae | 1202 | /* Otherwise, only remaining possibility is a matching network statement |
1203 | */ | |
1204 | if (p) { | |
1205 | assert(given_area != NULL); | |
1206 | ||
1207 | /* Which either was supplied as a parameter.. (e.g. cause a new | |
1208 | * network/area was just added).. | |
1209 | */ | |
1210 | if (p->family == co->address->family | |
1211 | && ospf_network_match_iface(co, p)) | |
1212 | ospf_update_interface_area(co, given_area); | |
1213 | ||
1214 | return; | |
1215 | } | |
1216 | ||
1217 | /* Else we have to search the existing network/area config to see | |
1218 | * if any match.. | |
1219 | */ | |
1220 | for (rn = route_top(ospf->networks); rn; rn = route_next(rn)) | |
1221 | if (rn->info != NULL && ospf_network_match_iface(co, &rn->p)) { | |
1222 | struct ospf_network *network = | |
1223 | (struct ospf_network *)rn->info; | |
1224 | area = ospf_area_get(ospf, network->area_id); | |
1225 | ospf_update_interface_area(co, area); | |
1226 | configed = 1; | |
1227 | } | |
1228 | ||
1229 | /* If the subnet isn't in any area, deconfigure */ | |
1230 | if (!configed && (oi = ospf_if_table_lookup(co->ifp, co->address))) | |
1231 | ospf_if_free(oi); | |
718e3744 | 1232 | } |
1233 | ||
d62a17ae | 1234 | static void ospf_network_run_interface(struct ospf *ospf, struct interface *ifp, |
1235 | struct prefix *p, | |
1236 | struct ospf_area *given_area) | |
718e3744 | 1237 | { |
d62a17ae | 1238 | struct listnode *cnode; |
1239 | struct connected *co; | |
1240 | ||
1241 | if (memcmp(ifp->name, "VLINK", 5) == 0) | |
1242 | return; | |
718e3744 | 1243 | |
d62a17ae | 1244 | /* Network prefix without area is nonsensical */ |
1245 | if (p) | |
1246 | assert(given_area != NULL); | |
1247 | ||
1248 | /* if interface prefix is match specified prefix, | |
1249 | then create socket and join multicast group. */ | |
1250 | for (ALL_LIST_ELEMENTS_RO(ifp->connected, cnode, co)) | |
1251 | ospf_network_run_subnet(ospf, co, p, given_area); | |
718e3744 | 1252 | } |
1253 | ||
d62a17ae | 1254 | static void ospf_network_run(struct prefix *p, struct ospf_area *area) |
718e3744 | 1255 | { |
f4e14fdb | 1256 | struct vrf *vrf = vrf_lookup_by_id(area->ospf->vrf_id); |
d62a17ae | 1257 | struct interface *ifp; |
d62a17ae | 1258 | |
1259 | /* Schedule Router ID Update. */ | |
1260 | if (area->ospf->router_id.s_addr == 0) | |
1261 | ospf_router_id_update(area->ospf); | |
718e3744 | 1262 | |
d62a17ae | 1263 | /* Get target interface. */ |
f4e14fdb | 1264 | RB_FOREACH (ifp, if_name_head, &vrf->ifaces_by_name) |
d62a17ae | 1265 | ospf_network_run_interface(area->ospf, ifp, p, area); |
718e3744 | 1266 | } |
1267 | ||
d62a17ae | 1268 | void ospf_ls_upd_queue_empty(struct ospf_interface *oi) |
1269 | { | |
1270 | struct route_node *rn; | |
1271 | struct listnode *node, *nnode; | |
1272 | struct list *lst; | |
1273 | struct ospf_lsa *lsa; | |
1274 | ||
1275 | /* empty ls update queue */ | |
1276 | for (rn = route_top(oi->ls_upd_queue); rn; rn = route_next(rn)) | |
1277 | if ((lst = (struct list *)rn->info)) { | |
1278 | for (ALL_LIST_ELEMENTS(lst, node, nnode, lsa)) | |
1279 | ospf_lsa_unlock(&lsa); /* oi->ls_upd_queue */ | |
affe9e99 | 1280 | list_delete_and_null(&lst); |
d62a17ae | 1281 | rn->info = NULL; |
1282 | } | |
1283 | ||
1284 | /* remove update event */ | |
1285 | if (oi->t_ls_upd_event) { | |
1286 | thread_cancel(oi->t_ls_upd_event); | |
1287 | oi->t_ls_upd_event = NULL; | |
1288 | } | |
1289 | } | |
6b0655a2 | 1290 | |
d62a17ae | 1291 | void ospf_if_update(struct ospf *ospf, struct interface *ifp) |
718e3744 | 1292 | { |
43b8d1d8 | 1293 | |
d62a17ae | 1294 | if (!ospf) |
43b8d1d8 | 1295 | return; |
b5a8894d CS |
1296 | |
1297 | if (IS_DEBUG_OSPF_EVENT) | |
1298 | zlog_debug("%s: interface %s ifp->vrf_id %u ospf vrf %s vrf_id %u router_id %s", | |
1299 | __PRETTY_FUNCTION__, ifp->name, ifp->vrf_id, | |
1300 | ospf_vrf_id_to_name(ospf->vrf_id), ospf->vrf_id, | |
1301 | inet_ntoa(ospf->router_id)); | |
d62a17ae | 1302 | |
1303 | /* OSPF must be ready. */ | |
1304 | if (!ospf_is_ready(ospf)) | |
1305 | return; | |
1306 | ||
1307 | ospf_network_run_interface(ospf, ifp, NULL, NULL); | |
1308 | ||
1309 | /* Update connected redistribute. */ | |
1310 | update_redistributed(ospf, 1); | |
1311 | } | |
718e3744 | 1312 | |
d62a17ae | 1313 | void ospf_remove_vls_through_area(struct ospf *ospf, struct ospf_area *area) |
718e3744 | 1314 | { |
d62a17ae | 1315 | struct listnode *node, *nnode; |
1316 | struct ospf_vl_data *vl_data; | |
718e3744 | 1317 | |
d62a17ae | 1318 | for (ALL_LIST_ELEMENTS(ospf->vlinks, node, nnode, vl_data)) |
1319 | if (IPV4_ADDR_SAME(&vl_data->vl_area_id, &area->area_id)) | |
1320 | ospf_vl_delete(ospf, vl_data); | |
1321 | } | |
718e3744 | 1322 | |
718e3744 | 1323 | |
d62a17ae | 1324 | static const struct message ospf_area_type_msg[] = { |
1325 | {OSPF_AREA_DEFAULT, "Default"}, | |
1326 | {OSPF_AREA_STUB, "Stub"}, | |
1327 | {OSPF_AREA_NSSA, "NSSA"}, | |
1328 | {0}}; | |
718e3744 | 1329 | |
d62a17ae | 1330 | static void ospf_area_type_set(struct ospf_area *area, int type) |
1331 | { | |
1332 | struct listnode *node; | |
1333 | struct ospf_interface *oi; | |
1334 | ||
1335 | if (area->external_routing == type) { | |
1336 | if (IS_DEBUG_OSPF_EVENT) | |
1337 | zlog_debug("Area[%s]: Types are the same, ignored.", | |
1338 | inet_ntoa(area->area_id)); | |
1339 | return; | |
1340 | } | |
718e3744 | 1341 | |
d62a17ae | 1342 | area->external_routing = type; |
1343 | ||
1344 | if (IS_DEBUG_OSPF_EVENT) | |
1345 | zlog_debug("Area[%s]: Configured as %s", | |
1346 | inet_ntoa(area->area_id), | |
1347 | lookup_msg(ospf_area_type_msg, type, NULL)); | |
1348 | ||
1349 | switch (area->external_routing) { | |
1350 | case OSPF_AREA_DEFAULT: | |
1351 | for (ALL_LIST_ELEMENTS_RO(area->oiflist, node, oi)) | |
1352 | if (oi->nbr_self != NULL) { | |
1353 | UNSET_FLAG(oi->nbr_self->options, | |
1354 | OSPF_OPTION_NP); | |
1355 | SET_FLAG(oi->nbr_self->options, OSPF_OPTION_E); | |
1356 | } | |
1357 | break; | |
1358 | case OSPF_AREA_STUB: | |
1359 | for (ALL_LIST_ELEMENTS_RO(area->oiflist, node, oi)) | |
1360 | if (oi->nbr_self != NULL) { | |
1361 | if (IS_DEBUG_OSPF_EVENT) | |
1362 | zlog_debug( | |
1363 | "setting options on %s accordingly", | |
1364 | IF_NAME(oi)); | |
1365 | UNSET_FLAG(oi->nbr_self->options, | |
1366 | OSPF_OPTION_NP); | |
1367 | UNSET_FLAG(oi->nbr_self->options, | |
1368 | OSPF_OPTION_E); | |
1369 | if (IS_DEBUG_OSPF_EVENT) | |
1370 | zlog_debug("options set on %s: %x", | |
1371 | IF_NAME(oi), OPTIONS(oi)); | |
1372 | } | |
1373 | break; | |
1374 | case OSPF_AREA_NSSA: | |
1375 | for (ALL_LIST_ELEMENTS_RO(area->oiflist, node, oi)) | |
1376 | if (oi->nbr_self != NULL) { | |
1377 | zlog_debug( | |
1378 | "setting nssa options on %s accordingly", | |
1379 | IF_NAME(oi)); | |
1380 | UNSET_FLAG(oi->nbr_self->options, | |
1381 | OSPF_OPTION_E); | |
1382 | SET_FLAG(oi->nbr_self->options, OSPF_OPTION_NP); | |
1383 | zlog_debug("options set on %s: %x", IF_NAME(oi), | |
1384 | OPTIONS(oi)); | |
1385 | } | |
1386 | break; | |
1387 | default: | |
1388 | break; | |
1389 | } | |
1390 | ||
1391 | ospf_router_lsa_update_area(area); | |
1392 | ospf_schedule_abr_task(area->ospf); | |
718e3744 | 1393 | } |
1394 | ||
d62a17ae | 1395 | int ospf_area_shortcut_set(struct ospf *ospf, struct ospf_area *area, int mode) |
718e3744 | 1396 | { |
d62a17ae | 1397 | if (area->shortcut_configured == mode) |
1398 | return 0; | |
718e3744 | 1399 | |
d62a17ae | 1400 | area->shortcut_configured = mode; |
1401 | ospf_router_lsa_update_area(area); | |
1402 | ospf_schedule_abr_task(ospf); | |
718e3744 | 1403 | |
d62a17ae | 1404 | ospf_area_check_free(ospf, area->area_id); |
718e3744 | 1405 | |
d62a17ae | 1406 | return 1; |
718e3744 | 1407 | } |
1408 | ||
d62a17ae | 1409 | int ospf_area_shortcut_unset(struct ospf *ospf, struct ospf_area *area) |
718e3744 | 1410 | { |
d62a17ae | 1411 | area->shortcut_configured = OSPF_SHORTCUT_DEFAULT; |
1412 | ospf_router_lsa_update_area(area); | |
1413 | ospf_area_check_free(ospf, area->area_id); | |
1414 | ospf_schedule_abr_task(ospf); | |
718e3744 | 1415 | |
d62a17ae | 1416 | return 1; |
718e3744 | 1417 | } |
1418 | ||
d62a17ae | 1419 | static int ospf_area_vlink_count(struct ospf *ospf, struct ospf_area *area) |
718e3744 | 1420 | { |
d62a17ae | 1421 | struct ospf_vl_data *vl; |
1422 | struct listnode *node; | |
1423 | int count = 0; | |
718e3744 | 1424 | |
d62a17ae | 1425 | for (ALL_LIST_ELEMENTS_RO(ospf->vlinks, node, vl)) |
1426 | if (IPV4_ADDR_SAME(&vl->vl_area_id, &area->area_id)) | |
1427 | count++; | |
718e3744 | 1428 | |
d62a17ae | 1429 | return count; |
718e3744 | 1430 | } |
1431 | ||
d62a17ae | 1432 | int ospf_area_display_format_set(struct ospf *ospf, struct ospf_area *area, |
1433 | int df) | |
86573dcb | 1434 | { |
d62a17ae | 1435 | area->area_id_fmt = df; |
86573dcb | 1436 | |
d62a17ae | 1437 | return 1; |
86573dcb QY |
1438 | } |
1439 | ||
d62a17ae | 1440 | int ospf_area_stub_set(struct ospf *ospf, struct in_addr area_id) |
718e3744 | 1441 | { |
d62a17ae | 1442 | struct ospf_area *area; |
718e3744 | 1443 | |
d62a17ae | 1444 | area = ospf_area_get(ospf, area_id); |
1445 | if (ospf_area_vlink_count(ospf, area)) | |
1446 | return 0; | |
718e3744 | 1447 | |
d62a17ae | 1448 | if (area->external_routing != OSPF_AREA_STUB) |
1449 | ospf_area_type_set(area, OSPF_AREA_STUB); | |
718e3744 | 1450 | |
d62a17ae | 1451 | return 1; |
718e3744 | 1452 | } |
1453 | ||
d62a17ae | 1454 | int ospf_area_stub_unset(struct ospf *ospf, struct in_addr area_id) |
718e3744 | 1455 | { |
d62a17ae | 1456 | struct ospf_area *area; |
718e3744 | 1457 | |
d62a17ae | 1458 | area = ospf_area_lookup_by_area_id(ospf, area_id); |
1459 | if (area == NULL) | |
1460 | return 1; | |
718e3744 | 1461 | |
d62a17ae | 1462 | if (area->external_routing == OSPF_AREA_STUB) |
1463 | ospf_area_type_set(area, OSPF_AREA_DEFAULT); | |
718e3744 | 1464 | |
d62a17ae | 1465 | ospf_area_check_free(ospf, area_id); |
718e3744 | 1466 | |
d62a17ae | 1467 | return 1; |
718e3744 | 1468 | } |
1469 | ||
d62a17ae | 1470 | int ospf_area_no_summary_set(struct ospf *ospf, struct in_addr area_id) |
718e3744 | 1471 | { |
d62a17ae | 1472 | struct ospf_area *area; |
718e3744 | 1473 | |
d62a17ae | 1474 | area = ospf_area_get(ospf, area_id); |
1475 | area->no_summary = 1; | |
718e3744 | 1476 | |
d62a17ae | 1477 | return 1; |
718e3744 | 1478 | } |
1479 | ||
d62a17ae | 1480 | int ospf_area_no_summary_unset(struct ospf *ospf, struct in_addr area_id) |
718e3744 | 1481 | { |
d62a17ae | 1482 | struct ospf_area *area; |
718e3744 | 1483 | |
d62a17ae | 1484 | area = ospf_area_lookup_by_area_id(ospf, area_id); |
1485 | if (area == NULL) | |
1486 | return 0; | |
718e3744 | 1487 | |
d62a17ae | 1488 | area->no_summary = 0; |
1489 | ospf_area_check_free(ospf, area_id); | |
718e3744 | 1490 | |
d62a17ae | 1491 | return 1; |
718e3744 | 1492 | } |
1493 | ||
d62a17ae | 1494 | int ospf_area_nssa_set(struct ospf *ospf, struct in_addr area_id) |
718e3744 | 1495 | { |
d62a17ae | 1496 | struct ospf_area *area; |
718e3744 | 1497 | |
d62a17ae | 1498 | area = ospf_area_get(ospf, area_id); |
1499 | if (ospf_area_vlink_count(ospf, area)) | |
1500 | return 0; | |
718e3744 | 1501 | |
d62a17ae | 1502 | if (area->external_routing != OSPF_AREA_NSSA) { |
1503 | ospf_area_type_set(area, OSPF_AREA_NSSA); | |
1504 | ospf->anyNSSA++; | |
1505 | } | |
718e3744 | 1506 | |
d62a17ae | 1507 | /* set NSSA area defaults */ |
1508 | area->no_summary = 0; | |
1509 | area->NSSATranslatorRole = OSPF_NSSA_ROLE_CANDIDATE; | |
1510 | area->NSSATranslatorState = OSPF_NSSA_TRANSLATE_DISABLED; | |
1511 | area->NSSATranslatorStabilityInterval = OSPF_NSSA_TRANS_STABLE_DEFAULT; | |
084c7844 | 1512 | |
d62a17ae | 1513 | return 1; |
718e3744 | 1514 | } |
1515 | ||
d62a17ae | 1516 | int ospf_area_nssa_unset(struct ospf *ospf, struct in_addr area_id) |
718e3744 | 1517 | { |
d62a17ae | 1518 | struct ospf_area *area; |
718e3744 | 1519 | |
d62a17ae | 1520 | area = ospf_area_lookup_by_area_id(ospf, area_id); |
1521 | if (area == NULL) | |
1522 | return 0; | |
718e3744 | 1523 | |
d62a17ae | 1524 | if (area->external_routing == OSPF_AREA_NSSA) { |
1525 | ospf->anyNSSA--; | |
1526 | ospf_area_type_set(area, OSPF_AREA_DEFAULT); | |
1527 | } | |
718e3744 | 1528 | |
d62a17ae | 1529 | ospf_area_check_free(ospf, area_id); |
718e3744 | 1530 | |
d62a17ae | 1531 | return 1; |
718e3744 | 1532 | } |
1533 | ||
d62a17ae | 1534 | int ospf_area_nssa_translator_role_set(struct ospf *ospf, |
1535 | struct in_addr area_id, int role) | |
718e3744 | 1536 | { |
d62a17ae | 1537 | struct ospf_area *area; |
718e3744 | 1538 | |
d62a17ae | 1539 | area = ospf_area_lookup_by_area_id(ospf, area_id); |
1540 | if (area == NULL) | |
1541 | return 0; | |
718e3744 | 1542 | |
d62a17ae | 1543 | area->NSSATranslatorRole = role; |
718e3744 | 1544 | |
d62a17ae | 1545 | return 1; |
718e3744 | 1546 | } |
1547 | ||
075e12f5 | 1548 | #if 0 |
4dadc291 | 1549 | /* XXX: unused? Leave for symmetry? */ |
1550 | static int | |
718e3744 | 1551 | ospf_area_nssa_translator_role_unset (struct ospf *ospf, |
1552 | struct in_addr area_id) | |
1553 | { | |
1554 | struct ospf_area *area; | |
1555 | ||
68980084 | 1556 | area = ospf_area_lookup_by_area_id (ospf, area_id); |
718e3744 | 1557 | if (area == NULL) |
1558 | return 0; | |
1559 | ||
084c7844 | 1560 | area->NSSATranslatorRole = OSPF_NSSA_ROLE_CANDIDATE; |
718e3744 | 1561 | |
68980084 | 1562 | ospf_area_check_free (ospf, area_id); |
718e3744 | 1563 | |
1564 | return 1; | |
1565 | } | |
075e12f5 | 1566 | #endif |
718e3744 | 1567 | |
d62a17ae | 1568 | int ospf_area_export_list_set(struct ospf *ospf, struct ospf_area *area, |
1569 | const char *list_name) | |
718e3744 | 1570 | { |
d62a17ae | 1571 | struct access_list *list; |
1572 | list = access_list_lookup(AFI_IP, list_name); | |
718e3744 | 1573 | |
d62a17ae | 1574 | EXPORT_LIST(area) = list; |
718e3744 | 1575 | |
d62a17ae | 1576 | if (EXPORT_NAME(area)) |
1577 | free(EXPORT_NAME(area)); | |
718e3744 | 1578 | |
d62a17ae | 1579 | EXPORT_NAME(area) = strdup(list_name); |
1580 | ospf_schedule_abr_task(ospf); | |
718e3744 | 1581 | |
d62a17ae | 1582 | return 1; |
718e3744 | 1583 | } |
1584 | ||
d62a17ae | 1585 | int ospf_area_export_list_unset(struct ospf *ospf, struct ospf_area *area) |
718e3744 | 1586 | { |
1587 | ||
d62a17ae | 1588 | EXPORT_LIST(area) = 0; |
718e3744 | 1589 | |
d62a17ae | 1590 | if (EXPORT_NAME(area)) |
1591 | free(EXPORT_NAME(area)); | |
718e3744 | 1592 | |
d62a17ae | 1593 | EXPORT_NAME(area) = NULL; |
718e3744 | 1594 | |
d62a17ae | 1595 | ospf_area_check_free(ospf, area->area_id); |
718e3744 | 1596 | |
d62a17ae | 1597 | ospf_schedule_abr_task(ospf); |
1598 | ||
1599 | return 1; | |
718e3744 | 1600 | } |
1601 | ||
d62a17ae | 1602 | int ospf_area_import_list_set(struct ospf *ospf, struct ospf_area *area, |
1603 | const char *name) | |
718e3744 | 1604 | { |
d62a17ae | 1605 | struct access_list *list; |
1606 | list = access_list_lookup(AFI_IP, name); | |
718e3744 | 1607 | |
d62a17ae | 1608 | IMPORT_LIST(area) = list; |
718e3744 | 1609 | |
d62a17ae | 1610 | if (IMPORT_NAME(area)) |
1611 | free(IMPORT_NAME(area)); | |
718e3744 | 1612 | |
d62a17ae | 1613 | IMPORT_NAME(area) = strdup(name); |
1614 | ospf_schedule_abr_task(ospf); | |
718e3744 | 1615 | |
d62a17ae | 1616 | return 1; |
718e3744 | 1617 | } |
1618 | ||
d62a17ae | 1619 | int ospf_area_import_list_unset(struct ospf *ospf, struct ospf_area *area) |
718e3744 | 1620 | { |
d62a17ae | 1621 | IMPORT_LIST(area) = 0; |
718e3744 | 1622 | |
d62a17ae | 1623 | if (IMPORT_NAME(area)) |
1624 | free(IMPORT_NAME(area)); | |
718e3744 | 1625 | |
d62a17ae | 1626 | IMPORT_NAME(area) = NULL; |
1627 | ospf_area_check_free(ospf, area->area_id); | |
718e3744 | 1628 | |
d62a17ae | 1629 | ospf_schedule_abr_task(ospf); |
718e3744 | 1630 | |
d62a17ae | 1631 | return 1; |
718e3744 | 1632 | } |
1633 | ||
d62a17ae | 1634 | int ospf_timers_refresh_set(struct ospf *ospf, int interval) |
718e3744 | 1635 | { |
d62a17ae | 1636 | int time_left; |
718e3744 | 1637 | |
d62a17ae | 1638 | if (ospf->lsa_refresh_interval == interval) |
1639 | return 1; | |
718e3744 | 1640 | |
d62a17ae | 1641 | time_left = ospf->lsa_refresh_interval |
1642 | - (monotime(NULL) - ospf->lsa_refresher_started); | |
718e3744 | 1643 | |
d62a17ae | 1644 | if (time_left > interval) { |
1645 | OSPF_TIMER_OFF(ospf->t_lsa_refresher); | |
1646 | thread_add_timer(master, ospf_lsa_refresh_walker, ospf, | |
1647 | interval, &ospf->t_lsa_refresher); | |
1648 | } | |
1649 | ospf->lsa_refresh_interval = interval; | |
1650 | ||
1651 | return 1; | |
718e3744 | 1652 | } |
1653 | ||
d62a17ae | 1654 | int ospf_timers_refresh_unset(struct ospf *ospf) |
718e3744 | 1655 | { |
d62a17ae | 1656 | int time_left; |
718e3744 | 1657 | |
d62a17ae | 1658 | time_left = ospf->lsa_refresh_interval |
1659 | - (monotime(NULL) - ospf->lsa_refresher_started); | |
718e3744 | 1660 | |
d62a17ae | 1661 | if (time_left > OSPF_LSA_REFRESH_INTERVAL_DEFAULT) { |
1662 | OSPF_TIMER_OFF(ospf->t_lsa_refresher); | |
1663 | ospf->t_lsa_refresher = NULL; | |
1664 | thread_add_timer(master, ospf_lsa_refresh_walker, ospf, | |
1665 | OSPF_LSA_REFRESH_INTERVAL_DEFAULT, | |
1666 | &ospf->t_lsa_refresher); | |
1667 | } | |
718e3744 | 1668 | |
d62a17ae | 1669 | ospf->lsa_refresh_interval = OSPF_LSA_REFRESH_INTERVAL_DEFAULT; |
718e3744 | 1670 | |
d62a17ae | 1671 | return 1; |
718e3744 | 1672 | } |
1673 | ||
6b0655a2 | 1674 | |
d62a17ae | 1675 | static struct ospf_nbr_nbma *ospf_nbr_nbma_new(void) |
718e3744 | 1676 | { |
d62a17ae | 1677 | struct ospf_nbr_nbma *nbr_nbma; |
718e3744 | 1678 | |
d62a17ae | 1679 | nbr_nbma = XCALLOC(MTYPE_OSPF_NEIGHBOR_STATIC, |
1680 | sizeof(struct ospf_nbr_nbma)); | |
718e3744 | 1681 | |
d62a17ae | 1682 | nbr_nbma->priority = OSPF_NEIGHBOR_PRIORITY_DEFAULT; |
1683 | nbr_nbma->v_poll = OSPF_POLL_INTERVAL_DEFAULT; | |
718e3744 | 1684 | |
d62a17ae | 1685 | return nbr_nbma; |
718e3744 | 1686 | } |
1687 | ||
d62a17ae | 1688 | static void ospf_nbr_nbma_free(struct ospf_nbr_nbma *nbr_nbma) |
718e3744 | 1689 | { |
d62a17ae | 1690 | XFREE(MTYPE_OSPF_NEIGHBOR_STATIC, nbr_nbma); |
718e3744 | 1691 | } |
1692 | ||
d62a17ae | 1693 | static void ospf_nbr_nbma_delete(struct ospf *ospf, |
1694 | struct ospf_nbr_nbma *nbr_nbma) | |
718e3744 | 1695 | { |
d62a17ae | 1696 | struct route_node *rn; |
1697 | struct prefix_ipv4 p; | |
718e3744 | 1698 | |
d62a17ae | 1699 | p.family = AF_INET; |
1700 | p.prefix = nbr_nbma->addr; | |
1701 | p.prefixlen = IPV4_MAX_BITLEN; | |
718e3744 | 1702 | |
d62a17ae | 1703 | rn = route_node_lookup(ospf->nbr_nbma, (struct prefix *)&p); |
1704 | if (rn) { | |
1705 | ospf_nbr_nbma_free(rn->info); | |
1706 | rn->info = NULL; | |
1707 | route_unlock_node(rn); | |
1708 | route_unlock_node(rn); | |
1709 | } | |
718e3744 | 1710 | } |
1711 | ||
d62a17ae | 1712 | static void ospf_nbr_nbma_down(struct ospf_nbr_nbma *nbr_nbma) |
718e3744 | 1713 | { |
d62a17ae | 1714 | OSPF_TIMER_OFF(nbr_nbma->t_poll); |
718e3744 | 1715 | |
d62a17ae | 1716 | if (nbr_nbma->nbr) { |
1717 | nbr_nbma->nbr->nbr_nbma = NULL; | |
1718 | OSPF_NSM_EVENT_EXECUTE(nbr_nbma->nbr, NSM_KillNbr); | |
1719 | } | |
718e3744 | 1720 | |
d62a17ae | 1721 | if (nbr_nbma->oi) |
1722 | listnode_delete(nbr_nbma->oi->nbr_nbma, nbr_nbma); | |
718e3744 | 1723 | } |
1724 | ||
d62a17ae | 1725 | static void ospf_nbr_nbma_add(struct ospf_nbr_nbma *nbr_nbma, |
1726 | struct ospf_interface *oi) | |
718e3744 | 1727 | { |
d62a17ae | 1728 | struct ospf_neighbor *nbr; |
1729 | struct route_node *rn; | |
1730 | struct prefix p; | |
718e3744 | 1731 | |
d62a17ae | 1732 | if (oi->type != OSPF_IFTYPE_NBMA) |
1733 | return; | |
718e3744 | 1734 | |
d62a17ae | 1735 | if (nbr_nbma->nbr != NULL) |
1736 | return; | |
718e3744 | 1737 | |
d62a17ae | 1738 | if (IPV4_ADDR_SAME(&oi->nbr_self->address.u.prefix4, &nbr_nbma->addr)) |
1739 | return; | |
718e3744 | 1740 | |
d62a17ae | 1741 | nbr_nbma->oi = oi; |
1742 | listnode_add(oi->nbr_nbma, nbr_nbma); | |
718e3744 | 1743 | |
d62a17ae | 1744 | /* Get neighbor information from table. */ |
1745 | p.family = AF_INET; | |
1746 | p.prefixlen = IPV4_MAX_BITLEN; | |
1747 | p.u.prefix4 = nbr_nbma->addr; | |
718e3744 | 1748 | |
d62a17ae | 1749 | rn = route_node_get(oi->nbrs, (struct prefix *)&p); |
1750 | if (rn->info) { | |
1751 | nbr = rn->info; | |
1752 | nbr->nbr_nbma = nbr_nbma; | |
1753 | nbr_nbma->nbr = nbr; | |
718e3744 | 1754 | |
d62a17ae | 1755 | route_unlock_node(rn); |
1756 | } else { | |
1757 | nbr = rn->info = ospf_nbr_new(oi); | |
1758 | nbr->state = NSM_Down; | |
1759 | nbr->src = nbr_nbma->addr; | |
1760 | nbr->nbr_nbma = nbr_nbma; | |
1761 | nbr->priority = nbr_nbma->priority; | |
1762 | nbr->address = p; | |
718e3744 | 1763 | |
d62a17ae | 1764 | nbr_nbma->nbr = nbr; |
1765 | ||
1766 | OSPF_NSM_EVENT_EXECUTE(nbr, NSM_Start); | |
1767 | } | |
718e3744 | 1768 | } |
1769 | ||
d62a17ae | 1770 | void ospf_nbr_nbma_if_update(struct ospf *ospf, struct ospf_interface *oi) |
718e3744 | 1771 | { |
d62a17ae | 1772 | struct ospf_nbr_nbma *nbr_nbma; |
1773 | struct route_node *rn; | |
1774 | struct prefix_ipv4 p; | |
718e3744 | 1775 | |
d62a17ae | 1776 | if (oi->type != OSPF_IFTYPE_NBMA) |
1777 | return; | |
718e3744 | 1778 | |
d62a17ae | 1779 | for (rn = route_top(ospf->nbr_nbma); rn; rn = route_next(rn)) |
1780 | if ((nbr_nbma = rn->info)) | |
1781 | if (nbr_nbma->oi == NULL && nbr_nbma->nbr == NULL) { | |
1782 | p.family = AF_INET; | |
1783 | p.prefix = nbr_nbma->addr; | |
1784 | p.prefixlen = IPV4_MAX_BITLEN; | |
718e3744 | 1785 | |
d62a17ae | 1786 | if (prefix_match(oi->address, |
1787 | (struct prefix *)&p)) | |
1788 | ospf_nbr_nbma_add(nbr_nbma, oi); | |
1789 | } | |
718e3744 | 1790 | } |
1791 | ||
d62a17ae | 1792 | struct ospf_nbr_nbma *ospf_nbr_nbma_lookup(struct ospf *ospf, |
1793 | struct in_addr nbr_addr) | |
718e3744 | 1794 | { |
d62a17ae | 1795 | struct route_node *rn; |
1796 | struct prefix_ipv4 p; | |
718e3744 | 1797 | |
d62a17ae | 1798 | p.family = AF_INET; |
1799 | p.prefix = nbr_addr; | |
1800 | p.prefixlen = IPV4_MAX_BITLEN; | |
718e3744 | 1801 | |
d62a17ae | 1802 | rn = route_node_lookup(ospf->nbr_nbma, (struct prefix *)&p); |
1803 | if (rn) { | |
1804 | route_unlock_node(rn); | |
1805 | return rn->info; | |
1806 | } | |
1807 | return NULL; | |
718e3744 | 1808 | } |
1809 | ||
d62a17ae | 1810 | struct ospf_nbr_nbma *ospf_nbr_nbma_lookup_next(struct ospf *ospf, |
1811 | struct in_addr *addr, int first) | |
718e3744 | 1812 | { |
1813 | #if 0 | |
1814 | struct ospf_nbr_nbma *nbr_nbma; | |
52dc7ee6 | 1815 | struct listnode *node; |
718e3744 | 1816 | #endif |
1817 | ||
d62a17ae | 1818 | if (ospf == NULL) |
1819 | return NULL; | |
718e3744 | 1820 | |
1821 | #if 0 | |
1eb8ef25 | 1822 | for (ALL_LIST_ELEMENTS_RO (ospf->nbr_nbma, node, nbr_nbma)) |
718e3744 | 1823 | { |
718e3744 | 1824 | if (first) |
1825 | { | |
1826 | *addr = nbr_nbma->addr; | |
1827 | return nbr_nbma; | |
1828 | } | |
1829 | else if (ntohl (nbr_nbma->addr.s_addr) > ntohl (addr->s_addr)) | |
1830 | { | |
1831 | *addr = nbr_nbma->addr; | |
1832 | return nbr_nbma; | |
1833 | } | |
1834 | } | |
1835 | #endif | |
d62a17ae | 1836 | return NULL; |
718e3744 | 1837 | } |
1838 | ||
d62a17ae | 1839 | int ospf_nbr_nbma_set(struct ospf *ospf, struct in_addr nbr_addr) |
718e3744 | 1840 | { |
d62a17ae | 1841 | struct ospf_nbr_nbma *nbr_nbma; |
1842 | struct ospf_interface *oi; | |
1843 | struct prefix_ipv4 p; | |
1844 | struct route_node *rn; | |
1845 | struct listnode *node; | |
718e3744 | 1846 | |
d62a17ae | 1847 | nbr_nbma = ospf_nbr_nbma_lookup(ospf, nbr_addr); |
1848 | if (nbr_nbma) | |
1849 | return 0; | |
718e3744 | 1850 | |
d62a17ae | 1851 | nbr_nbma = ospf_nbr_nbma_new(); |
1852 | nbr_nbma->addr = nbr_addr; | |
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_get(ospf->nbr_nbma, (struct prefix *)&p); |
1859 | if (rn->info) | |
1860 | route_unlock_node(rn); | |
1861 | rn->info = nbr_nbma; | |
718e3744 | 1862 | |
d62a17ae | 1863 | for (ALL_LIST_ELEMENTS_RO(ospf->oiflist, node, oi)) { |
1864 | if (oi->type == OSPF_IFTYPE_NBMA) | |
1865 | if (prefix_match(oi->address, (struct prefix *)&p)) { | |
1866 | ospf_nbr_nbma_add(nbr_nbma, oi); | |
1867 | break; | |
1868 | } | |
1869 | } | |
718e3744 | 1870 | |
d62a17ae | 1871 | return 1; |
718e3744 | 1872 | } |
1873 | ||
d62a17ae | 1874 | int ospf_nbr_nbma_unset(struct ospf *ospf, struct in_addr nbr_addr) |
718e3744 | 1875 | { |
d62a17ae | 1876 | struct ospf_nbr_nbma *nbr_nbma; |
718e3744 | 1877 | |
d62a17ae | 1878 | nbr_nbma = ospf_nbr_nbma_lookup(ospf, nbr_addr); |
1879 | if (nbr_nbma == NULL) | |
1880 | return 0; | |
718e3744 | 1881 | |
d62a17ae | 1882 | ospf_nbr_nbma_down(nbr_nbma); |
1883 | ospf_nbr_nbma_delete(ospf, nbr_nbma); | |
718e3744 | 1884 | |
d62a17ae | 1885 | return 1; |
718e3744 | 1886 | } |
1887 | ||
d62a17ae | 1888 | int ospf_nbr_nbma_priority_set(struct ospf *ospf, struct in_addr nbr_addr, |
1889 | u_char priority) | |
718e3744 | 1890 | { |
d62a17ae | 1891 | struct ospf_nbr_nbma *nbr_nbma; |
718e3744 | 1892 | |
d62a17ae | 1893 | nbr_nbma = ospf_nbr_nbma_lookup(ospf, nbr_addr); |
1894 | if (nbr_nbma == NULL) | |
1895 | return 0; | |
718e3744 | 1896 | |
d62a17ae | 1897 | if (nbr_nbma->priority != priority) |
1898 | nbr_nbma->priority = priority; | |
718e3744 | 1899 | |
d62a17ae | 1900 | return 1; |
718e3744 | 1901 | } |
1902 | ||
d62a17ae | 1903 | int ospf_nbr_nbma_priority_unset(struct ospf *ospf, struct in_addr nbr_addr) |
718e3744 | 1904 | { |
d62a17ae | 1905 | struct ospf_nbr_nbma *nbr_nbma; |
718e3744 | 1906 | |
d62a17ae | 1907 | nbr_nbma = ospf_nbr_nbma_lookup(ospf, nbr_addr); |
1908 | if (nbr_nbma == NULL) | |
1909 | return 0; | |
718e3744 | 1910 | |
d62a17ae | 1911 | if (nbr_nbma != OSPF_NEIGHBOR_PRIORITY_DEFAULT) |
1912 | nbr_nbma->priority = OSPF_NEIGHBOR_PRIORITY_DEFAULT; | |
718e3744 | 1913 | |
d62a17ae | 1914 | return 1; |
718e3744 | 1915 | } |
1916 | ||
d62a17ae | 1917 | int ospf_nbr_nbma_poll_interval_set(struct ospf *ospf, struct in_addr nbr_addr, |
1918 | unsigned int interval) | |
718e3744 | 1919 | { |
d62a17ae | 1920 | struct ospf_nbr_nbma *nbr_nbma; |
718e3744 | 1921 | |
d62a17ae | 1922 | nbr_nbma = ospf_nbr_nbma_lookup(ospf, nbr_addr); |
1923 | if (nbr_nbma == NULL) | |
1924 | return 0; | |
718e3744 | 1925 | |
d62a17ae | 1926 | if (nbr_nbma->v_poll != interval) { |
1927 | nbr_nbma->v_poll = interval; | |
1928 | if (nbr_nbma->oi && ospf_if_is_up(nbr_nbma->oi)) { | |
1929 | OSPF_TIMER_OFF(nbr_nbma->t_poll); | |
1930 | OSPF_POLL_TIMER_ON(nbr_nbma->t_poll, ospf_poll_timer, | |
1931 | nbr_nbma->v_poll); | |
1932 | } | |
718e3744 | 1933 | } |
718e3744 | 1934 | |
d62a17ae | 1935 | return 1; |
718e3744 | 1936 | } |
1937 | ||
d62a17ae | 1938 | int ospf_nbr_nbma_poll_interval_unset(struct ospf *ospf, struct in_addr addr) |
718e3744 | 1939 | { |
d62a17ae | 1940 | struct ospf_nbr_nbma *nbr_nbma; |
718e3744 | 1941 | |
d62a17ae | 1942 | nbr_nbma = ospf_nbr_nbma_lookup(ospf, addr); |
1943 | if (nbr_nbma == NULL) | |
1944 | return 0; | |
718e3744 | 1945 | |
d62a17ae | 1946 | if (nbr_nbma->v_poll != OSPF_POLL_INTERVAL_DEFAULT) |
1947 | nbr_nbma->v_poll = OSPF_POLL_INTERVAL_DEFAULT; | |
718e3744 | 1948 | |
d62a17ae | 1949 | return 1; |
718e3744 | 1950 | } |
1951 | ||
d62a17ae | 1952 | void ospf_master_init(struct thread_master *master) |
718e3744 | 1953 | { |
d62a17ae | 1954 | memset(&ospf_master, 0, sizeof(struct ospf_master)); |
020709f9 | 1955 | |
d62a17ae | 1956 | om = &ospf_master; |
1957 | om->ospf = list_new(); | |
1958 | om->master = master; | |
020709f9 | 1959 | } |
b5a8894d CS |
1960 | |
1961 | /* Link OSPF instance to VRF. */ | |
1962 | void ospf_vrf_link(struct ospf *ospf, struct vrf *vrf) | |
1963 | { | |
1964 | ospf->vrf_id = vrf->vrf_id; | |
1965 | if (vrf->info != (void *)ospf) | |
1966 | vrf->info = (void *)ospf; | |
1967 | } | |
1968 | ||
1969 | /* Unlink OSPF instance from VRF. */ | |
1970 | void ospf_vrf_unlink(struct ospf *ospf, struct vrf *vrf) | |
1971 | { | |
1972 | if (vrf->info == (void *)ospf) | |
1973 | vrf->info = NULL; | |
1974 | ospf->vrf_id = VRF_UNKNOWN; | |
1975 | } | |
1976 | ||
1977 | /* This is hook function for vrf create called as part of vrf_init */ | |
1978 | static int ospf_vrf_new(struct vrf *vrf) | |
1979 | { | |
1980 | if (IS_DEBUG_OSPF_EVENT) | |
1981 | zlog_debug("%s: VRF Created: %s(%d)", __PRETTY_FUNCTION__, | |
1982 | vrf->name, vrf->vrf_id); | |
1983 | ||
1984 | return 0; | |
1985 | } | |
1986 | ||
1987 | /* This is hook function for vrf delete call as part of vrf_init */ | |
1988 | static int ospf_vrf_delete(struct vrf *vrf) | |
1989 | { | |
1990 | if (IS_DEBUG_OSPF_EVENT) | |
1991 | zlog_debug("%s: VRF Deletion: %s(%d)", __PRETTY_FUNCTION__, | |
1992 | vrf->name, vrf->vrf_id); | |
1993 | ||
1994 | return 0; | |
1995 | } | |
1996 | ||
1997 | /* Enable OSPF VRF instance */ | |
1998 | static int ospf_vrf_enable(struct vrf *vrf) | |
1999 | { | |
2000 | struct ospf *ospf = NULL; | |
2001 | vrf_id_t old_vrf_id = VRF_DEFAULT; | |
2002 | ||
2003 | if (IS_DEBUG_OSPF_EVENT) | |
2004 | zlog_debug("%s: VRF %s id %d enabled", | |
2005 | __PRETTY_FUNCTION__, vrf->name, vrf->vrf_id); | |
2006 | ||
2007 | ospf = ospf_lookup_by_name(vrf->name); | |
2008 | if (ospf) { | |
2009 | old_vrf_id = ospf->vrf_id; | |
2010 | /* We have instance configured, link to VRF and make it "up". */ | |
2011 | ospf_vrf_link(ospf, vrf); | |
2012 | if (IS_DEBUG_OSPF_EVENT) | |
2013 | zlog_debug("%s: ospf linked to vrf %s vrf_id %d (old id %d)", | |
2014 | __PRETTY_FUNCTION__, vrf->name, ospf->vrf_id, | |
2015 | old_vrf_id); | |
2016 | ||
2017 | if (old_vrf_id != ospf->vrf_id) { | |
e7503eab CS |
2018 | if (ospfd_privs.change(ZPRIVS_RAISE)) { |
2019 | zlog_err("ospf_sock_init: could not raise privs, %s", | |
2020 | safe_strerror(errno)); | |
2021 | } | |
2022 | if (ospf_bind_vrfdevice(ospf, ospf->fd) < 0) | |
2023 | return 0; | |
2024 | if (ospfd_privs.change(ZPRIVS_LOWER)) { | |
2025 | zlog_err("ospf_sock_init: could not lower privs, %s", | |
2026 | safe_strerror(errno)); | |
2027 | } | |
2028 | ||
b5a8894d CS |
2029 | ospf->oi_running = 1; |
2030 | ospf_router_id_update(ospf); | |
2031 | } | |
2032 | } | |
2033 | ||
2034 | return 0; | |
2035 | } | |
2036 | ||
2037 | /* Disable OSPF VRF instance */ | |
2038 | static int ospf_vrf_disable(struct vrf *vrf) | |
2039 | { | |
2040 | struct ospf *ospf = NULL; | |
2041 | vrf_id_t old_vrf_id = VRF_UNKNOWN; | |
2042 | ||
2043 | if (vrf->vrf_id == VRF_DEFAULT) | |
2044 | return 0; | |
2045 | ||
2046 | if (IS_DEBUG_OSPF_EVENT) | |
2047 | zlog_debug("%s: VRF %s id %d disabled.", | |
2048 | __PRETTY_FUNCTION__, vrf->name, vrf->vrf_id); | |
2049 | ||
2050 | ospf = ospf_lookup_by_name(vrf->name); | |
2051 | if (ospf) { | |
2052 | old_vrf_id = ospf->vrf_id; | |
2053 | ||
2054 | /* We have instance configured, unlink | |
2055 | * from VRF and make it "down". | |
2056 | */ | |
2057 | ospf_vrf_unlink(ospf, vrf); | |
2058 | ospf->oi_running = 0; | |
2059 | if (IS_DEBUG_OSPF_EVENT) | |
2060 | zlog_debug("%s: ospf old_vrf_id %d unlinked", | |
2061 | __PRETTY_FUNCTION__, old_vrf_id); | |
2062 | } | |
2063 | ||
2064 | /* Note: This is a callback, the VRF will be deleted by the caller. */ | |
2065 | return 0; | |
2066 | } | |
2067 | ||
2068 | void ospf_vrf_init(void) | |
2069 | { | |
2070 | vrf_init(ospf_vrf_new, ospf_vrf_enable, | |
2071 | ospf_vrf_disable, ospf_vrf_delete); | |
2072 | } | |
2073 | ||
2074 | void ospf_vrf_terminate(void) | |
2075 | { | |
2076 | vrf_terminate(); | |
2077 | } | |
2078 | ||
2079 | const char *ospf_vrf_id_to_name(vrf_id_t vrf_id) | |
2080 | { | |
2081 | struct vrf *vrf = vrf_lookup_by_id(vrf_id); | |
2082 | ||
2083 | return vrf ? vrf->name : "NIL"; | |
2084 | } |