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718e3744 | 1 | /* OSPF version 2 daemon program. |
896014f4 DL |
2 | * Copyright (C) 1999, 2000 Toshiaki Takada |
3 | * | |
4 | * This file is part of GNU Zebra. | |
5 | * | |
6 | * GNU Zebra is free software; you can redistribute it and/or modify it | |
7 | * under the terms of the GNU General Public License as published by the | |
8 | * Free Software Foundation; either version 2, or (at your option) any | |
9 | * later version. | |
10 | * | |
11 | * GNU Zebra is distributed in the hope that it will be useful, but | |
12 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
14 | * General Public License for more details. | |
15 | * | |
16 | * You should have received a copy of the GNU General Public License along | |
17 | * with this program; see the file COPYING; if not, write to the Free Software | |
18 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA | |
19 | */ | |
718e3744 | 20 | |
21 | #include <zebra.h> | |
22 | ||
23 | #include "thread.h" | |
24 | #include "vty.h" | |
25 | #include "command.h" | |
26 | #include "linklist.h" | |
27 | #include "prefix.h" | |
28 | #include "table.h" | |
29 | #include "if.h" | |
30 | #include "memory.h" | |
31 | #include "stream.h" | |
32 | #include "log.h" | |
d62a17ae | 33 | #include "sockunion.h" /* for inet_aton () */ |
718e3744 | 34 | #include "zclient.h" |
ded42248 | 35 | #include "routemap.h" |
718e3744 | 36 | #include "plist.h" |
f102e75f | 37 | #include "sockopt.h" |
567b877d | 38 | #include "bfd.h" |
8879bd22 | 39 | #include "libfrr.h" |
8efe88ea | 40 | #include "defaults.h" |
313d7993 | 41 | #include "lib_errors.h" |
718e3744 | 42 | |
43 | #include "ospfd/ospfd.h" | |
44 | #include "ospfd/ospf_network.h" | |
45 | #include "ospfd/ospf_interface.h" | |
46 | #include "ospfd/ospf_ism.h" | |
47 | #include "ospfd/ospf_asbr.h" | |
48 | #include "ospfd/ospf_lsa.h" | |
49 | #include "ospfd/ospf_lsdb.h" | |
50 | #include "ospfd/ospf_neighbor.h" | |
51 | #include "ospfd/ospf_nsm.h" | |
52 | #include "ospfd/ospf_spf.h" | |
53 | #include "ospfd/ospf_packet.h" | |
54 | #include "ospfd/ospf_dump.h" | |
19c0412a | 55 | #include "ospfd/ospf_route.h" |
718e3744 | 56 | #include "ospfd/ospf_zebra.h" |
57 | #include "ospfd/ospf_abr.h" | |
58 | #include "ospfd/ospf_flood.h" | |
718e3744 | 59 | #include "ospfd/ospf_ase.h" |
60 | ||
6b0655a2 | 61 | |
ae19c240 | 62 | DEFINE_QOBJ_TYPE(ospf) |
edd7c245 | 63 | |
020709f9 | 64 | /* OSPF process wide configuration. */ |
65 | static struct ospf_master ospf_master; | |
66 | ||
67 | /* OSPF process wide configuration pointer to export. */ | |
68 | struct ospf_master *om; | |
718e3744 | 69 | |
70 | extern struct zclient *zclient; | |
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; | |
2c19a6ec | 94 | |
d62a17ae | 95 | if (!ospf->oi_running) { |
96 | if (IS_DEBUG_OSPF_EVENT) | |
97 | zlog_debug( | |
98 | "Router ospf not configured -- Router-ID update postponed"); | |
99 | return; | |
25a346eb | 100 | } |
718e3744 | 101 | |
d62a17ae | 102 | if (IS_DEBUG_OSPF_EVENT) |
103 | zlog_debug("Router-ID[OLD:%s]: Update", | |
104 | inet_ntoa(ospf->router_id)); | |
105 | ||
106 | router_id_old = ospf->router_id; | |
107 | ||
108 | /* Select the router ID based on these priorities: | |
109 | 1. Statically assigned router ID is always the first choice. | |
110 | 2. If there is no statically assigned router ID, then try to stick | |
111 | with the most recent value, since changing router ID's is very | |
112 | disruptive. | |
113 | 3. Last choice: just go with whatever the zebra daemon recommends. | |
114 | */ | |
115 | if (ospf->router_id_static.s_addr != 0) | |
116 | router_id = ospf->router_id_static; | |
117 | else if (ospf->router_id.s_addr != 0) | |
118 | router_id = ospf->router_id; | |
119 | else | |
6021c6c0 | 120 | router_id = ospf->router_id_zebra; |
d62a17ae | 121 | |
b5a8894d CS |
122 | if (IS_DEBUG_OSPF_EVENT) |
123 | zlog_debug("Router-ID[OLD:%s]: Update to %s", | |
996c9314 | 124 | inet_ntoa(ospf->router_id), inet_ntoa(router_id)); |
d62a17ae | 125 | |
126 | if (!IPV4_ADDR_SAME(&router_id_old, &router_id)) { | |
127 | ||
128 | for (ALL_LIST_ELEMENTS_RO(ospf->oiflist, node, oi)) { | |
129 | /* Some nbrs are identified by router_id, these needs | |
130 | * to be rebuilt. Possible optimization would be to do | |
131 | * oi->nbr_self->router_id = router_id for | |
132 | * !(virtual | ptop) links | |
133 | */ | |
134 | ospf_nbr_self_reset(oi, router_id); | |
135 | } | |
136 | ||
d62a17ae | 137 | /* Flush (inline) all external LSAs based on the OSPF_LSA_SELF |
138 | * flag */ | |
139 | if (ospf->lsdb) { | |
140 | struct route_node *rn; | |
141 | struct ospf_lsa *lsa; | |
142 | ||
996c9314 | 143 | LSDB_LOOP (EXTERNAL_LSDB(ospf), rn, lsa) |
044506e7 DS |
144 | if (IS_LSA_SELF(lsa)) |
145 | ospf_lsa_flush_schedule(ospf, lsa); | |
d62a17ae | 146 | } |
147 | ||
148 | ospf->router_id = router_id; | |
149 | if (IS_DEBUG_OSPF_EVENT) | |
150 | zlog_debug("Router-ID[NEW:%s]: Update", | |
151 | inet_ntoa(ospf->router_id)); | |
152 | ||
153 | /* Flush (inline) all external LSAs which now match the new | |
154 | router-id, | |
0437e105 | 155 | need to adjust the OSPF_LSA_SELF flag, so the flush doesn't |
d62a17ae | 156 | hit |
157 | asserts in ospf_refresher_unregister_lsa(). This step is | |
158 | needed | |
159 | because the current quagga code does look-up for | |
160 | self-originated LSAs | |
161 | based on the self router-id alone but expects OSPF_LSA_SELF | |
162 | to be | |
163 | properly set */ | |
164 | if (ospf->lsdb) { | |
165 | struct route_node *rn; | |
166 | struct ospf_lsa *lsa; | |
167 | ||
044506e7 | 168 | LSDB_LOOP (EXTERNAL_LSDB(ospf), rn, lsa) { |
d62a17ae | 169 | /* AdvRouter and Router ID is the same. */ |
170 | if (IPV4_ADDR_SAME(&lsa->data->adv_router, | |
171 | &ospf->router_id)) { | |
172 | SET_FLAG(lsa->flags, | |
173 | OSPF_LSA_SELF_CHECKED); | |
174 | SET_FLAG(lsa->flags, OSPF_LSA_SELF); | |
175 | ospf_lsa_flush_schedule(ospf, lsa); | |
176 | } | |
177 | } | |
178 | } | |
179 | ||
d62a17ae | 180 | /* update router-lsa's for each area */ |
181 | ospf_router_lsa_update(ospf); | |
182 | ||
183 | /* update ospf_interface's */ | |
451fda4f | 184 | FOR_ALL_INTERFACES (vrf, ifp) |
d62a17ae | 185 | ospf_if_update(ospf, ifp); |
fa3c7c7e DL |
186 | |
187 | ospf_external_lsa_rid_change(ospf); | |
718e3744 | 188 | } |
718e3744 | 189 | } |
6b0655a2 | 190 | |
718e3744 | 191 | /* For OSPF area sort by area id. */ |
d62a17ae | 192 | static int ospf_area_id_cmp(struct ospf_area *a1, struct ospf_area *a2) |
718e3744 | 193 | { |
d62a17ae | 194 | if (ntohl(a1->area_id.s_addr) > ntohl(a2->area_id.s_addr)) |
195 | return 1; | |
196 | if (ntohl(a1->area_id.s_addr) < ntohl(a2->area_id.s_addr)) | |
197 | return -1; | |
198 | return 0; | |
718e3744 | 199 | } |
200 | ||
201 | /* Allocate new ospf structure. */ | |
d7c0a89a | 202 | static struct ospf *ospf_new(unsigned short instance, const char *name) |
718e3744 | 203 | { |
d62a17ae | 204 | int i; |
b5a8894d | 205 | struct vrf *vrf = NULL; |
718e3744 | 206 | |
d62a17ae | 207 | struct ospf *new = XCALLOC(MTYPE_OSPF_TOP, sizeof(struct ospf)); |
718e3744 | 208 | |
d62a17ae | 209 | new->instance = instance; |
210 | new->router_id.s_addr = htonl(0); | |
211 | new->router_id_static.s_addr = htonl(0); | |
14406e8e DS |
212 | if (name) { |
213 | vrf = vrf_lookup_by_name(name); | |
214 | if (vrf) | |
215 | new->vrf_id = vrf->vrf_id; | |
216 | else | |
217 | new->vrf_id = VRF_UNKNOWN; | |
b5a8894d CS |
218 | /* Freed in ospf_finish_final */ |
219 | new->name = XSTRDUP(MTYPE_OSPF_TOP, name); | |
b5a8894d | 220 | if (IS_DEBUG_OSPF_EVENT) |
996c9314 LB |
221 | zlog_debug( |
222 | "%s: Create new ospf instance with vrf_name %s vrf_id %u", | |
223 | __PRETTY_FUNCTION__, name, new->vrf_id); | |
b5a8894d CS |
224 | } else { |
225 | new->vrf_id = VRF_DEFAULT; | |
226 | vrf = vrf_lookup_by_id(VRF_DEFAULT); | |
b5a8894d | 227 | } |
a2d7fdfe | 228 | |
229 | if (vrf) | |
230 | ospf_vrf_link(new, vrf); | |
231 | ||
b5a8894d CS |
232 | ospf_zebra_vrf_register(new); |
233 | ||
d62a17ae | 234 | new->abr_type = OSPF_ABR_DEFAULT; |
235 | new->oiflist = list_new(); | |
236 | new->vlinks = list_new(); | |
237 | new->areas = list_new(); | |
238 | new->areas->cmp = (int (*)(void *, void *))ospf_area_id_cmp; | |
239 | new->networks = route_table_init(); | |
240 | new->nbr_nbma = route_table_init(); | |
718e3744 | 241 | |
d62a17ae | 242 | new->lsdb = ospf_lsdb_new(); |
718e3744 | 243 | |
d62a17ae | 244 | new->default_originate = DEFAULT_ORIGINATE_NONE; |
718e3744 | 245 | |
d62a17ae | 246 | new->passive_interface_default = OSPF_IF_ACTIVE; |
4ba4fc85 | 247 | |
d62a17ae | 248 | new->new_external_route = route_table_init(); |
249 | new->old_external_route = route_table_init(); | |
250 | new->external_lsas = route_table_init(); | |
251 | ||
252 | new->stub_router_startup_time = OSPF_STUB_ROUTER_UNCONFIGURED; | |
253 | new->stub_router_shutdown_time = OSPF_STUB_ROUTER_UNCONFIGURED; | |
254 | new->stub_router_admin_set = OSPF_STUB_ROUTER_ADMINISTRATIVE_UNSET; | |
255 | ||
256 | /* Distribute parameter init. */ | |
257 | for (i = 0; i <= ZEBRA_ROUTE_MAX; i++) { | |
258 | new->dtag[i] = 0; | |
259 | } | |
260 | new->default_metric = -1; | |
261 | new->ref_bandwidth = OSPF_DEFAULT_REF_BANDWIDTH; | |
262 | ||
263 | /* LSA timers */ | |
264 | new->min_ls_interval = OSPF_MIN_LS_INTERVAL; | |
265 | new->min_ls_arrival = OSPF_MIN_LS_ARRIVAL; | |
266 | ||
267 | /* SPF timer value init. */ | |
268 | new->spf_delay = OSPF_SPF_DELAY_DEFAULT; | |
269 | new->spf_holdtime = OSPF_SPF_HOLDTIME_DEFAULT; | |
270 | new->spf_max_holdtime = OSPF_SPF_MAX_HOLDTIME_DEFAULT; | |
271 | new->spf_hold_multiplier = 1; | |
272 | ||
273 | /* MaxAge init. */ | |
274 | new->maxage_delay = OSPF_LSA_MAXAGE_REMOVE_DELAY_DEFAULT; | |
275 | new->maxage_lsa = route_table_init(); | |
276 | new->t_maxage_walker = NULL; | |
277 | thread_add_timer(master, ospf_lsa_maxage_walker, new, | |
278 | OSPF_LSA_MAXAGE_CHECK_INTERVAL, &new->t_maxage_walker); | |
279 | ||
280 | /* Distance table init. */ | |
281 | new->distance_table = route_table_init(); | |
282 | ||
283 | new->lsa_refresh_queue.index = 0; | |
284 | new->lsa_refresh_interval = OSPF_LSA_REFRESH_INTERVAL_DEFAULT; | |
285 | new->t_lsa_refresher = NULL; | |
286 | thread_add_timer(master, ospf_lsa_refresh_walker, new, | |
287 | new->lsa_refresh_interval, &new->t_lsa_refresher); | |
288 | new->lsa_refresher_started = monotime(NULL); | |
289 | ||
266469eb DS |
290 | new->ibuf = stream_new(OSPF_MAX_PACKET_SIZE + 1); |
291 | ||
d62a17ae | 292 | new->t_read = NULL; |
d62a17ae | 293 | new->oi_write_q = list_new(); |
294 | new->write_oi_count = OSPF_WRITE_INTERFACE_COUNT_DEFAULT; | |
295 | ||
296 | /* Enable "log-adjacency-changes" */ | |
8efe88ea | 297 | #if DFLT_OSPF_LOG_ADJACENCY_CHANGES |
d62a17ae | 298 | SET_FLAG(new->config, OSPF_LOG_ADJACENCY_CHANGES); |
8efe88ea | 299 | #endif |
3e7c8d04 | 300 | |
d62a17ae | 301 | QOBJ_REG(new, ospf); |
ae19c240 | 302 | |
3c0eb8fa PG |
303 | new->fd = -1; |
304 | if ((ospf_sock_init(new)) < 0) { | |
305 | if (new->vrf_id != VRF_UNKNOWN) | |
ade6974d | 306 | flog_err( |
450971aa | 307 | EC_LIB_SOCKET, |
ade6974d QY |
308 | "%s: ospf_sock_init is unable to open a socket", |
309 | __func__); | |
3c0eb8fa PG |
310 | return new; |
311 | } | |
312 | thread_add_read(master, ospf_read, new, new->fd, &new->t_read); | |
313 | ||
d62a17ae | 314 | return new; |
718e3744 | 315 | } |
316 | ||
d7c0a89a | 317 | struct ospf *ospf_lookup_instance(unsigned short instance) |
7c8ff89e | 318 | { |
d62a17ae | 319 | struct ospf *ospf; |
320 | struct listnode *node, *nnode; | |
7c8ff89e | 321 | |
d62a17ae | 322 | if (listcount(om->ospf) == 0) |
323 | return NULL; | |
7c8ff89e | 324 | |
d62a17ae | 325 | for (ALL_LIST_ELEMENTS(om->ospf, node, nnode, ospf)) |
326 | if ((ospf->instance == 0 && instance == 0) | |
327 | || (ospf->instance && instance | |
328 | && ospf->instance == instance)) | |
329 | return ospf; | |
7c8ff89e | 330 | |
d62a17ae | 331 | return NULL; |
7c8ff89e DS |
332 | } |
333 | ||
d62a17ae | 334 | static int ospf_is_ready(struct ospf *ospf) |
52c62ab8 | 335 | { |
d62a17ae | 336 | /* OSPF must be on and Router-ID must be configured. */ |
337 | if (!ospf || ospf->router_id.s_addr == 0) | |
338 | return 0; | |
339 | ||
340 | return 1; | |
52c62ab8 JAG |
341 | } |
342 | ||
d62a17ae | 343 | static void ospf_add(struct ospf *ospf) |
020709f9 | 344 | { |
d62a17ae | 345 | listnode_add(om->ospf, ospf); |
020709f9 | 346 | } |
718e3744 | 347 | |
d62a17ae | 348 | static void ospf_delete(struct ospf *ospf) |
020709f9 | 349 | { |
d62a17ae | 350 | listnode_delete(om->ospf, ospf); |
020709f9 | 351 | } |
68980084 | 352 | |
d7c0a89a | 353 | struct ospf *ospf_lookup_by_inst_name(unsigned short instance, const char *name) |
b5a8894d CS |
354 | { |
355 | struct ospf *ospf = NULL; | |
356 | struct listnode *node, *nnode; | |
357 | ||
6895b354 PG |
358 | if (name == NULL || strmatch(name, VRF_DEFAULT_NAME)) |
359 | return ospf_lookup_by_vrf_id(VRF_DEFAULT); | |
360 | ||
b5a8894d | 361 | for (ALL_LIST_ELEMENTS(om->ospf, node, nnode, ospf)) { |
996c9314 LB |
362 | if ((ospf->instance == instance) |
363 | && ((ospf->name == NULL && name == NULL) | |
364 | || (ospf->name && name | |
365 | && strcmp(ospf->name, name) == 0))) | |
b5a8894d CS |
366 | return ospf; |
367 | } | |
368 | return NULL; | |
369 | } | |
370 | ||
d7c0a89a | 371 | struct ospf *ospf_get(unsigned short instance, const char *name) |
020709f9 | 372 | { |
d62a17ae | 373 | struct ospf *ospf; |
020709f9 | 374 | |
b5a8894d CS |
375 | /* vrf name provided call inst and name based api |
376 | * in case of no name pass default ospf instance */ | |
377 | if (name) | |
378 | ospf = ospf_lookup_by_inst_name(instance, name); | |
379 | else | |
380 | ospf = ospf_lookup_by_vrf_id(VRF_DEFAULT); | |
381 | ||
d62a17ae | 382 | if (ospf == NULL) { |
b5a8894d | 383 | ospf = ospf_new(instance, name); |
d62a17ae | 384 | ospf_add(ospf); |
7c8ff89e | 385 | |
d62a17ae | 386 | if (ospf->router_id_static.s_addr == 0) |
387 | ospf_router_id_update(ospf); | |
7c8ff89e | 388 | |
d62a17ae | 389 | ospf_opaque_type11_lsa_init(ospf); |
390 | } | |
7c8ff89e | 391 | |
d62a17ae | 392 | return ospf; |
7c8ff89e DS |
393 | } |
394 | ||
d7c0a89a | 395 | struct ospf *ospf_get_instance(unsigned short instance) |
7c8ff89e | 396 | { |
d62a17ae | 397 | struct ospf *ospf; |
7c8ff89e | 398 | |
d62a17ae | 399 | ospf = ospf_lookup_instance(instance); |
400 | if (ospf == NULL) { | |
b5a8894d | 401 | ospf = ospf_new(instance, NULL /* VRF_DEFAULT*/); |
d62a17ae | 402 | ospf_add(ospf); |
020709f9 | 403 | |
b5a8894d CS |
404 | if (ospf->router_id_static.s_addr == 0) { |
405 | if (vrf_lookup_by_id(ospf->vrf_id)) | |
406 | ospf_router_id_update(ospf); | |
407 | else { | |
408 | if (IS_DEBUG_OSPF_EVENT) | |
996c9314 LB |
409 | zlog_debug( |
410 | "%s: ospf VRF (id %d) is not active yet, skip router id update", | |
411 | __PRETTY_FUNCTION__, | |
412 | ospf->vrf_id); | |
b5a8894d | 413 | } |
d62a17ae | 414 | ospf_router_id_update(ospf); |
b5a8894d | 415 | } |
718e3744 | 416 | |
d62a17ae | 417 | ospf_opaque_type11_lsa_init(ospf); |
418 | } | |
68980084 | 419 | |
d62a17ae | 420 | return ospf; |
718e3744 | 421 | } |
6b0655a2 | 422 | |
b5a8894d CS |
423 | struct ospf *ospf_lookup_by_vrf_id(vrf_id_t vrf_id) |
424 | { | |
425 | struct vrf *vrf = NULL; | |
426 | ||
427 | vrf = vrf_lookup_by_id(vrf_id); | |
428 | if (!vrf) | |
429 | return NULL; | |
430 | return (vrf->info) ? (struct ospf *)vrf->info : NULL; | |
b5a8894d CS |
431 | } |
432 | ||
43b8d1d8 CS |
433 | /* It should only be used when processing incoming info update from zebra. |
434 | * Other situations, it is not sufficient to lookup the ospf instance by | |
435 | * vrf_name only without using the instance number. | |
436 | */ | |
437 | static struct ospf *ospf_lookup_by_name(const char *vrf_name) | |
b5a8894d CS |
438 | { |
439 | struct ospf *ospf = NULL; | |
440 | struct listnode *node, *nnode; | |
441 | ||
442 | for (ALL_LIST_ELEMENTS(om->ospf, node, nnode, ospf)) | |
43b8d1d8 | 443 | if ((ospf->name == NULL && vrf_name == NULL) |
996c9314 LB |
444 | || (ospf->name && vrf_name |
445 | && strcmp(ospf->name, vrf_name) == 0)) | |
b5a8894d CS |
446 | return ospf; |
447 | return NULL; | |
448 | } | |
449 | ||
c9c93d50 | 450 | /* Handle the second half of deferred shutdown. This is called either |
451 | * from the deferred-shutdown timer thread, or directly through | |
452 | * ospf_deferred_shutdown_check. | |
88d6cf37 | 453 | * |
454 | * Function is to cleanup G-R state, if required then call ospf_finish_final | |
455 | * to complete shutdown of this ospf instance. Possibly exit if the | |
456 | * whole process is being shutdown and this was the last OSPF instance. | |
457 | */ | |
d62a17ae | 458 | static void ospf_deferred_shutdown_finish(struct ospf *ospf) |
459 | { | |
460 | ospf->stub_router_shutdown_time = OSPF_STUB_ROUTER_UNCONFIGURED; | |
461 | OSPF_TIMER_OFF(ospf->t_deferred_shutdown); | |
462 | ||
463 | ospf_finish_final(ospf); | |
464 | ||
465 | /* *ospf is now invalid */ | |
88d6cf37 | 466 | |
d62a17ae | 467 | /* ospfd being shut-down? If so, was this the last ospf instance? */ |
468 | if (CHECK_FLAG(om->options, OSPF_MASTER_SHUTDOWN) | |
469 | && (listcount(om->ospf) == 0)) { | |
470 | exit(0); | |
471 | } | |
472 | ||
473 | return; | |
88d6cf37 | 474 | } |
475 | ||
476 | /* Timer thread for G-R */ | |
d62a17ae | 477 | static int ospf_deferred_shutdown_timer(struct thread *t) |
88d6cf37 | 478 | { |
d62a17ae | 479 | struct ospf *ospf = THREAD_ARG(t); |
480 | ||
481 | ospf_deferred_shutdown_finish(ospf); | |
482 | ||
483 | return 0; | |
88d6cf37 | 484 | } |
485 | ||
c9c93d50 | 486 | /* Check whether deferred-shutdown must be scheduled, otherwise call |
88d6cf37 | 487 | * down directly into second-half of instance shutdown. |
488 | */ | |
d62a17ae | 489 | static void ospf_deferred_shutdown_check(struct ospf *ospf) |
490 | { | |
491 | unsigned long timeout; | |
492 | struct listnode *ln; | |
493 | struct ospf_area *area; | |
494 | ||
495 | /* deferred shutdown already running? */ | |
496 | if (ospf->t_deferred_shutdown) | |
497 | return; | |
498 | ||
499 | /* Should we try push out max-metric LSAs? */ | |
500 | if (ospf->stub_router_shutdown_time != OSPF_STUB_ROUTER_UNCONFIGURED) { | |
501 | for (ALL_LIST_ELEMENTS_RO(ospf->areas, ln, area)) { | |
502 | SET_FLAG(area->stub_router_state, | |
503 | OSPF_AREA_ADMIN_STUB_ROUTED); | |
504 | ||
505 | if (!CHECK_FLAG(area->stub_router_state, | |
506 | OSPF_AREA_IS_STUB_ROUTED)) | |
507 | ospf_router_lsa_update_area(area); | |
508 | } | |
509 | timeout = ospf->stub_router_shutdown_time; | |
510 | } else { | |
511 | /* No timer needed */ | |
512 | ospf_deferred_shutdown_finish(ospf); | |
513 | return; | |
514 | } | |
515 | ||
516 | OSPF_TIMER_ON(ospf->t_deferred_shutdown, ospf_deferred_shutdown_timer, | |
517 | timeout); | |
518 | return; | |
88d6cf37 | 519 | } |
6b0655a2 | 520 | |
88d6cf37 | 521 | /* Shut down the entire process */ |
d62a17ae | 522 | void ospf_terminate(void) |
523 | { | |
524 | struct ospf *ospf; | |
525 | struct listnode *node, *nnode; | |
526 | ||
527 | /* shutdown already in progress */ | |
528 | if (CHECK_FLAG(om->options, OSPF_MASTER_SHUTDOWN)) | |
529 | return; | |
530 | ||
531 | SET_FLAG(om->options, OSPF_MASTER_SHUTDOWN); | |
532 | ||
533 | /* exit immediately if OSPF not actually running */ | |
534 | if (listcount(om->ospf) == 0) | |
535 | exit(0); | |
536 | ||
537 | bfd_gbl_exit(); | |
538 | for (ALL_LIST_ELEMENTS(om->ospf, node, nnode, ospf)) | |
539 | ospf_finish(ospf); | |
540 | ||
ded42248 | 541 | /* Cleanup route maps */ |
ded42248 CS |
542 | route_map_finish(); |
543 | ||
544 | /* reverse prefix_list_init */ | |
545 | prefix_list_add_hook(NULL); | |
546 | prefix_list_delete_hook(NULL); | |
547 | prefix_list_reset(); | |
548 | ||
549 | /* Cleanup vrf info */ | |
550 | ospf_vrf_terminate(); | |
551 | ||
d62a17ae | 552 | /* Deliberately go back up, hopefully to thread scheduler, as |
553 | * One or more ospf_finish()'s may have deferred shutdown to a timer | |
554 | * thread | |
555 | */ | |
556 | zclient_stop(zclient); | |
557 | zclient_free(zclient); | |
8879bd22 RW |
558 | |
559 | frr_fini(); | |
d62a17ae | 560 | } |
561 | ||
562 | void ospf_finish(struct ospf *ospf) | |
563 | { | |
564 | /* let deferred shutdown decide */ | |
565 | ospf_deferred_shutdown_check(ospf); | |
566 | ||
567 | /* if ospf_deferred_shutdown returns, then ospf_finish_final is | |
568 | * deferred to expiry of G-S timer thread. Return back up, hopefully | |
569 | * to thread scheduler. | |
570 | */ | |
571 | return; | |
88d6cf37 | 572 | } |
573 | ||
574 | /* Final cleanup of ospf instance */ | |
d62a17ae | 575 | static void ospf_finish_final(struct ospf *ospf) |
718e3744 | 576 | { |
f4e14fdb | 577 | struct vrf *vrf = vrf_lookup_by_id(ospf->vrf_id); |
d62a17ae | 578 | struct route_node *rn; |
579 | struct ospf_nbr_nbma *nbr_nbma; | |
580 | struct ospf_lsa *lsa; | |
581 | struct interface *ifp; | |
582 | struct ospf_interface *oi; | |
583 | struct ospf_area *area; | |
584 | struct ospf_vl_data *vl_data; | |
585 | struct listnode *node, *nnode; | |
586 | int i; | |
d7c0a89a | 587 | unsigned short instance = 0; |
7c8ff89e | 588 | |
d62a17ae | 589 | QOBJ_UNREG(ospf); |
7c8ff89e | 590 | |
d62a17ae | 591 | ospf_opaque_type11_lsa_term(ospf); |
953cde65 | 592 | |
bcf4475e OD |
593 | ospf_opaque_finish(); |
594 | ||
046460a1 | 595 | ospf_flush_self_originated_lsas_now(ospf); |
953cde65 | 596 | |
d62a17ae | 597 | /* Unregister redistribution */ |
598 | for (i = 0; i < ZEBRA_ROUTE_MAX; i++) { | |
599 | struct list *red_list; | |
600 | struct ospf_redist *red; | |
718e3744 | 601 | |
d62a17ae | 602 | red_list = ospf->redist[i]; |
603 | if (!red_list) | |
604 | continue; | |
718e3744 | 605 | |
1d753551 | 606 | for (ALL_LIST_ELEMENTS(red_list, node, nnode, red)) { |
d62a17ae | 607 | ospf_redistribute_unset(ospf, i, red->instance); |
1d753551 DS |
608 | ospf_redist_del(ospf, i, red->instance); |
609 | } | |
d62a17ae | 610 | } |
d5eac1e0 | 611 | ospf_redistribute_default_set(ospf, DEFAULT_ORIGINATE_NONE, 0, 0); |
718e3744 | 612 | |
d62a17ae | 613 | for (ALL_LIST_ELEMENTS(ospf->areas, node, nnode, area)) |
614 | ospf_remove_vls_through_area(ospf, area); | |
718e3744 | 615 | |
d62a17ae | 616 | for (ALL_LIST_ELEMENTS(ospf->vlinks, node, nnode, vl_data)) |
617 | ospf_vl_delete(ospf, vl_data); | |
718e3744 | 618 | |
6a154c88 | 619 | list_delete(&ospf->vlinks); |
718e3744 | 620 | |
d62a17ae | 621 | /* Remove any ospf interface config params */ |
451fda4f | 622 | FOR_ALL_INTERFACES (vrf, ifp) { |
d62a17ae | 623 | struct ospf_if_params *params; |
718e3744 | 624 | |
d62a17ae | 625 | params = IF_DEF_PARAMS(ifp); |
626 | if (OSPF_IF_PARAM_CONFIGURED(params, if_area)) | |
627 | UNSET_IF_PARAM(params, if_area); | |
718e3744 | 628 | } |
718e3744 | 629 | |
d62a17ae | 630 | /* Reset interface. */ |
631 | for (ALL_LIST_ELEMENTS(ospf->oiflist, node, nnode, oi)) | |
632 | ospf_if_free(oi); | |
6a154c88 | 633 | list_delete(&ospf->oiflist); |
c32eba04 | 634 | ospf->oi_running = 0; |
718e3744 | 635 | |
b5a8894d CS |
636 | /* De-Register VRF */ |
637 | ospf_zebra_vrf_deregister(ospf); | |
638 | ||
d62a17ae | 639 | /* Clear static neighbors */ |
640 | for (rn = route_top(ospf->nbr_nbma); rn; rn = route_next(rn)) | |
641 | if ((nbr_nbma = rn->info)) { | |
642 | OSPF_POLL_TIMER_OFF(nbr_nbma->t_poll); | |
718e3744 | 643 | |
d62a17ae | 644 | if (nbr_nbma->nbr) { |
645 | nbr_nbma->nbr->nbr_nbma = NULL; | |
646 | nbr_nbma->nbr = NULL; | |
647 | } | |
648 | ||
649 | if (nbr_nbma->oi) { | |
650 | listnode_delete(nbr_nbma->oi->nbr_nbma, | |
651 | nbr_nbma); | |
652 | nbr_nbma->oi = NULL; | |
653 | } | |
654 | ||
655 | XFREE(MTYPE_OSPF_NEIGHBOR_STATIC, nbr_nbma); | |
656 | } | |
657 | ||
658 | route_table_finish(ospf->nbr_nbma); | |
659 | ||
660 | /* Clear networks and Areas. */ | |
661 | for (rn = route_top(ospf->networks); rn; rn = route_next(rn)) { | |
662 | struct ospf_network *network; | |
663 | ||
664 | if ((network = rn->info) != NULL) { | |
665 | ospf_network_free(ospf, network); | |
666 | rn->info = NULL; | |
667 | route_unlock_node(rn); | |
668 | } | |
91e6a0e5 | 669 | } |
7f586094 | 670 | route_table_finish(ospf->networks); |
718e3744 | 671 | |
d62a17ae | 672 | for (ALL_LIST_ELEMENTS(ospf->areas, node, nnode, area)) { |
673 | listnode_delete(ospf->areas, area); | |
674 | ospf_area_free(area); | |
675 | } | |
718e3744 | 676 | |
d62a17ae | 677 | /* Cancel all timers. */ |
c32eba04 CS |
678 | OSPF_TIMER_OFF(ospf->t_read); |
679 | OSPF_TIMER_OFF(ospf->t_write); | |
d62a17ae | 680 | OSPF_TIMER_OFF(ospf->t_spf_calc); |
681 | OSPF_TIMER_OFF(ospf->t_ase_calc); | |
682 | OSPF_TIMER_OFF(ospf->t_maxage); | |
683 | OSPF_TIMER_OFF(ospf->t_maxage_walker); | |
684 | OSPF_TIMER_OFF(ospf->t_abr_task); | |
685 | OSPF_TIMER_OFF(ospf->t_asbr_check); | |
686 | OSPF_TIMER_OFF(ospf->t_distribute_update); | |
687 | OSPF_TIMER_OFF(ospf->t_lsa_refresher); | |
d62a17ae | 688 | OSPF_TIMER_OFF(ospf->t_opaque_lsa_self); |
45a43856 | 689 | OSPF_TIMER_OFF(ospf->t_sr_update); |
d62a17ae | 690 | |
996c9314 | 691 | LSDB_LOOP (OPAQUE_AS_LSDB(ospf), rn, lsa) |
044506e7 | 692 | ospf_discard_from_db(ospf, ospf->lsdb, lsa); |
996c9314 | 693 | LSDB_LOOP (EXTERNAL_LSDB(ospf), rn, lsa) |
044506e7 | 694 | ospf_discard_from_db(ospf, ospf->lsdb, lsa); |
d62a17ae | 695 | |
696 | ospf_lsdb_delete_all(ospf->lsdb); | |
697 | ospf_lsdb_free(ospf->lsdb); | |
698 | ||
699 | for (rn = route_top(ospf->maxage_lsa); rn; rn = route_next(rn)) { | |
d62a17ae | 700 | if ((lsa = rn->info) != NULL) { |
701 | ospf_lsa_unlock(&lsa); | |
702 | rn->info = NULL; | |
703 | } | |
704 | route_unlock_node(rn); | |
705 | } | |
706 | route_table_finish(ospf->maxage_lsa); | |
707 | ||
708 | if (ospf->old_table) | |
709 | ospf_route_table_free(ospf->old_table); | |
710 | if (ospf->new_table) { | |
b5a8894d | 711 | ospf_route_delete(ospf, ospf->new_table); |
d62a17ae | 712 | ospf_route_table_free(ospf->new_table); |
713 | } | |
714 | if (ospf->old_rtrs) | |
715 | ospf_rtrs_free(ospf->old_rtrs); | |
716 | if (ospf->new_rtrs) | |
717 | ospf_rtrs_free(ospf->new_rtrs); | |
718 | if (ospf->new_external_route) { | |
b5a8894d | 719 | ospf_route_delete(ospf, ospf->new_external_route); |
d62a17ae | 720 | ospf_route_table_free(ospf->new_external_route); |
721 | } | |
722 | if (ospf->old_external_route) { | |
b5a8894d | 723 | ospf_route_delete(ospf, ospf->old_external_route); |
d62a17ae | 724 | ospf_route_table_free(ospf->old_external_route); |
725 | } | |
726 | if (ospf->external_lsas) { | |
727 | ospf_ase_external_lsas_finish(ospf->external_lsas); | |
728 | } | |
718e3744 | 729 | |
d62a17ae | 730 | for (i = ZEBRA_ROUTE_SYSTEM; i <= ZEBRA_ROUTE_MAX; i++) { |
731 | struct list *ext_list; | |
d62a17ae | 732 | struct ospf_external *ext; |
733 | ||
de1ac5fd | 734 | ext_list = ospf->external[i]; |
d62a17ae | 735 | if (!ext_list) |
736 | continue; | |
737 | ||
76fdc7f4 | 738 | for (ALL_LIST_ELEMENTS(ext_list, node, nnode, ext)) { |
d62a17ae | 739 | if (ext->external_info) |
740 | for (rn = route_top(ext->external_info); rn; | |
741 | rn = route_next(rn)) { | |
742 | if (rn->info == NULL) | |
743 | continue; | |
744 | ||
745 | XFREE(MTYPE_OSPF_EXTERNAL_INFO, | |
746 | rn->info); | |
747 | rn->info = NULL; | |
748 | route_unlock_node(rn); | |
749 | } | |
1d753551 DS |
750 | |
751 | ospf_external_del(ospf, i, ext->instance); | |
d62a17ae | 752 | } |
753 | } | |
718e3744 | 754 | |
d62a17ae | 755 | ospf_distance_reset(ospf); |
756 | route_table_finish(ospf->distance_table); | |
7c8ff89e | 757 | |
d62a17ae | 758 | if (!CHECK_FLAG(om->options, OSPF_MASTER_SHUTDOWN)) |
759 | instance = ospf->instance; | |
718e3744 | 760 | |
c32eba04 CS |
761 | list_delete(&ospf->areas); |
762 | list_delete(&ospf->oi_write_q); | |
763 | ||
764 | close(ospf->fd); | |
765 | stream_free(ospf->ibuf); | |
766 | ospf->fd = -1; | |
d62a17ae | 767 | ospf_delete(ospf); |
7c8ff89e | 768 | |
b5a8894d CS |
769 | if (ospf->name) { |
770 | vrf = vrf_lookup_by_name(ospf->name); | |
771 | if (vrf) | |
772 | ospf_vrf_unlink(ospf, vrf); | |
773 | XFREE(MTYPE_OSPF_TOP, ospf->name); | |
774 | } else { | |
775 | vrf = vrf_lookup_by_id(VRF_DEFAULT); | |
776 | if (vrf) | |
777 | ospf_vrf_unlink(ospf, vrf); | |
778 | } | |
779 | ||
d62a17ae | 780 | XFREE(MTYPE_OSPF_TOP, ospf); |
7c8ff89e | 781 | |
d62a17ae | 782 | if (!CHECK_FLAG(om->options, OSPF_MASTER_SHUTDOWN)) |
783 | ospf_get_instance(instance); | |
718e3744 | 784 | } |
785 | ||
6b0655a2 | 786 | |
718e3744 | 787 | /* allocate new OSPF Area object */ |
d62a17ae | 788 | static struct ospf_area *ospf_area_new(struct ospf *ospf, |
789 | struct in_addr area_id) | |
718e3744 | 790 | { |
d62a17ae | 791 | struct ospf_area *new; |
718e3744 | 792 | |
d62a17ae | 793 | /* Allocate new config_network. */ |
794 | new = XCALLOC(MTYPE_OSPF_AREA, sizeof(struct ospf_area)); | |
718e3744 | 795 | |
d62a17ae | 796 | new->ospf = ospf; |
718e3744 | 797 | |
d62a17ae | 798 | new->area_id = area_id; |
799 | new->area_id_fmt = OSPF_AREA_ID_FMT_DOTTEDQUAD; | |
718e3744 | 800 | |
d62a17ae | 801 | new->external_routing = OSPF_AREA_DEFAULT; |
802 | new->default_cost = 1; | |
803 | new->auth_type = OSPF_AUTH_NULL; | |
718e3744 | 804 | |
d62a17ae | 805 | /* New LSDB init. */ |
806 | new->lsdb = ospf_lsdb_new(); | |
718e3744 | 807 | |
d62a17ae | 808 | /* Self-originated LSAs initialize. */ |
809 | new->router_lsa_self = NULL; | |
718e3744 | 810 | |
d62a17ae | 811 | ospf_opaque_type10_lsa_init(new); |
718e3744 | 812 | |
d62a17ae | 813 | new->oiflist = list_new(); |
814 | new->ranges = route_table_init(); | |
718e3744 | 815 | |
d62a17ae | 816 | if (area_id.s_addr == OSPF_AREA_BACKBONE) |
817 | ospf->backbone = new; | |
818 | ||
819 | return new; | |
718e3744 | 820 | } |
821 | ||
d62a17ae | 822 | static void ospf_area_free(struct ospf_area *area) |
718e3744 | 823 | { |
d62a17ae | 824 | struct route_node *rn; |
825 | struct ospf_lsa *lsa; | |
826 | ||
7f7f77a0 DS |
827 | ospf_opaque_type10_lsa_term(area); |
828 | ||
d62a17ae | 829 | /* Free LSDBs. */ |
996c9314 | 830 | LSDB_LOOP (ROUTER_LSDB(area), rn, lsa) |
044506e7 | 831 | ospf_discard_from_db(area->ospf, area->lsdb, lsa); |
996c9314 | 832 | LSDB_LOOP (NETWORK_LSDB(area), rn, lsa) |
044506e7 | 833 | ospf_discard_from_db(area->ospf, area->lsdb, lsa); |
996c9314 | 834 | LSDB_LOOP (SUMMARY_LSDB(area), rn, lsa) |
044506e7 | 835 | ospf_discard_from_db(area->ospf, area->lsdb, lsa); |
996c9314 | 836 | LSDB_LOOP (ASBR_SUMMARY_LSDB(area), rn, lsa) |
044506e7 | 837 | ospf_discard_from_db(area->ospf, area->lsdb, lsa); |
68980084 | 838 | |
996c9314 | 839 | LSDB_LOOP (NSSA_LSDB(area), rn, lsa) |
044506e7 | 840 | ospf_discard_from_db(area->ospf, area->lsdb, lsa); |
996c9314 | 841 | LSDB_LOOP (OPAQUE_AREA_LSDB(area), rn, lsa) |
044506e7 | 842 | ospf_discard_from_db(area->ospf, area->lsdb, lsa); |
996c9314 | 843 | LSDB_LOOP (OPAQUE_LINK_LSDB(area), rn, lsa) |
044506e7 | 844 | ospf_discard_from_db(area->ospf, area->lsdb, lsa); |
718e3744 | 845 | |
d62a17ae | 846 | ospf_lsdb_delete_all(area->lsdb); |
847 | ospf_lsdb_free(area->lsdb); | |
718e3744 | 848 | |
d62a17ae | 849 | ospf_lsa_unlock(&area->router_lsa_self); |
718e3744 | 850 | |
d62a17ae | 851 | route_table_finish(area->ranges); |
6a154c88 | 852 | list_delete(&area->oiflist); |
718e3744 | 853 | |
d62a17ae | 854 | if (EXPORT_NAME(area)) |
855 | free(EXPORT_NAME(area)); | |
718e3744 | 856 | |
d62a17ae | 857 | if (IMPORT_NAME(area)) |
858 | free(IMPORT_NAME(area)); | |
718e3744 | 859 | |
d62a17ae | 860 | /* Cancel timer. */ |
861 | OSPF_TIMER_OFF(area->t_stub_router); | |
862 | OSPF_TIMER_OFF(area->t_opaque_lsa_self); | |
718e3744 | 863 | |
d62a17ae | 864 | if (OSPF_IS_AREA_BACKBONE(area)) |
865 | area->ospf->backbone = NULL; | |
866 | ||
867 | XFREE(MTYPE_OSPF_AREA, area); | |
718e3744 | 868 | } |
869 | ||
d62a17ae | 870 | void ospf_area_check_free(struct ospf *ospf, struct in_addr area_id) |
718e3744 | 871 | { |
d62a17ae | 872 | struct ospf_area *area; |
718e3744 | 873 | |
d62a17ae | 874 | area = ospf_area_lookup_by_area_id(ospf, area_id); |
875 | if (area && listcount(area->oiflist) == 0 && area->ranges->top == NULL | |
19ce7d5e | 876 | && !ospf_vl_count(ospf, area) |
d62a17ae | 877 | && area->shortcut_configured == OSPF_SHORTCUT_DEFAULT |
878 | && area->external_routing == OSPF_AREA_DEFAULT | |
879 | && area->no_summary == 0 && area->default_cost == 1 | |
880 | && EXPORT_NAME(area) == NULL && IMPORT_NAME(area) == NULL | |
881 | && area->auth_type == OSPF_AUTH_NULL) { | |
882 | listnode_delete(ospf->areas, area); | |
883 | ospf_area_free(area); | |
884 | } | |
718e3744 | 885 | } |
886 | ||
d62a17ae | 887 | struct ospf_area *ospf_area_get(struct ospf *ospf, struct in_addr area_id) |
718e3744 | 888 | { |
d62a17ae | 889 | struct ospf_area *area; |
890 | ||
891 | area = ospf_area_lookup_by_area_id(ospf, area_id); | |
892 | if (!area) { | |
893 | area = ospf_area_new(ospf, area_id); | |
894 | listnode_add_sort(ospf->areas, area); | |
895 | ospf_check_abr_status(ospf); | |
896 | if (ospf->stub_router_admin_set | |
897 | == OSPF_STUB_ROUTER_ADMINISTRATIVE_SET) { | |
898 | SET_FLAG(area->stub_router_state, | |
899 | OSPF_AREA_ADMIN_STUB_ROUTED); | |
900 | } | |
901 | } | |
718e3744 | 902 | |
d62a17ae | 903 | return area; |
718e3744 | 904 | } |
905 | ||
d62a17ae | 906 | struct ospf_area *ospf_area_lookup_by_area_id(struct ospf *ospf, |
907 | struct in_addr area_id) | |
718e3744 | 908 | { |
d62a17ae | 909 | struct ospf_area *area; |
910 | struct listnode *node; | |
718e3744 | 911 | |
d62a17ae | 912 | for (ALL_LIST_ELEMENTS_RO(ospf->areas, node, area)) |
913 | if (IPV4_ADDR_SAME(&area->area_id, &area_id)) | |
914 | return area; | |
718e3744 | 915 | |
d62a17ae | 916 | return NULL; |
718e3744 | 917 | } |
918 | ||
d62a17ae | 919 | void ospf_area_add_if(struct ospf_area *area, struct ospf_interface *oi) |
718e3744 | 920 | { |
d62a17ae | 921 | listnode_add(area->oiflist, oi); |
718e3744 | 922 | } |
923 | ||
d62a17ae | 924 | void ospf_area_del_if(struct ospf_area *area, struct ospf_interface *oi) |
718e3744 | 925 | { |
d62a17ae | 926 | listnode_delete(area->oiflist, oi); |
718e3744 | 927 | } |
928 | ||
52c62ab8 | 929 | |
d62a17ae | 930 | static void add_ospf_interface(struct connected *co, struct ospf_area *area) |
953cde65 | 931 | { |
d62a17ae | 932 | struct ospf_interface *oi; |
953cde65 | 933 | |
d62a17ae | 934 | oi = ospf_if_new(area->ospf, co->ifp, co->address); |
935 | oi->connected = co; | |
953cde65 | 936 | |
d62a17ae | 937 | oi->area = area; |
953cde65 | 938 | |
d62a17ae | 939 | oi->params = ospf_lookup_if_params(co->ifp, oi->address->u.prefix4); |
940 | oi->output_cost = ospf_if_get_output_cost(oi); | |
953cde65 | 941 | |
d62a17ae | 942 | /* Relate ospf interface to ospf instance. */ |
943 | oi->ospf = area->ospf; | |
953cde65 | 944 | |
d62a17ae | 945 | /* update network type as interface flag */ |
946 | /* If network type is specified previously, | |
947 | skip network type setting. */ | |
948 | oi->type = IF_DEF_PARAMS(co->ifp)->type; | |
953cde65 | 949 | |
d62a17ae | 950 | /* Add pseudo neighbor. */ |
951 | ospf_nbr_self_reset(oi, oi->ospf->router_id); | |
953cde65 | 952 | |
d62a17ae | 953 | ospf_area_add_if(oi->area, oi); |
52c62ab8 | 954 | |
d62a17ae | 955 | /* |
956 | * if router_id is not configured, dont bring up | |
957 | * interfaces. | |
958 | * ospf_router_id_update() will call ospf_if_update | |
959 | * whenever r-id is configured instead. | |
960 | */ | |
961 | if ((area->ospf->router_id.s_addr != 0) && if_is_operative(co->ifp)) | |
962 | ospf_if_up(oi); | |
953cde65 JT |
963 | } |
964 | ||
965 | static void update_redistributed(struct ospf *ospf, int add_to_ospf) | |
966 | { | |
d62a17ae | 967 | struct route_node *rn; |
968 | struct external_info *ei; | |
969 | struct ospf_external *ext; | |
970 | ||
de1ac5fd CS |
971 | if (ospf_is_type_redistributed(ospf, ZEBRA_ROUTE_CONNECT, 0)) { |
972 | ext = ospf_external_lookup(ospf, ZEBRA_ROUTE_CONNECT, 0); | |
973 | if ((ext) && EXTERNAL_INFO(ext)) { | |
d62a17ae | 974 | for (rn = route_top(EXTERNAL_INFO(ext)); rn; |
975 | rn = route_next(rn)) { | |
de1ac5fd CS |
976 | ei = rn->info; |
977 | if (ei == NULL) | |
978 | continue; | |
979 | ||
980 | if (add_to_ospf) { | |
996c9314 LB |
981 | if (ospf_external_info_find_lsa(ospf, |
982 | &ei->p)) | |
de1ac5fd CS |
983 | if (!ospf_distribute_check_connected( |
984 | ospf, ei)) | |
985 | ospf_external_lsa_flush( | |
996c9314 | 986 | ospf, ei->type, |
de1ac5fd CS |
987 | &ei->p, |
988 | ei->ifindex /*, ei->nexthop */); | |
989 | } else { | |
990 | if (!ospf_external_info_find_lsa( | |
991 | ospf, &ei->p)) | |
992 | if (ospf_distribute_check_connected( | |
993 | ospf, ei)) | |
994 | ospf_external_lsa_originate( | |
996c9314 | 995 | ospf, ei); |
d62a17ae | 996 | } |
997 | } | |
998 | } | |
de1ac5fd | 999 | } |
953cde65 JT |
1000 | } |
1001 | ||
718e3744 | 1002 | /* Config network statement related functions. */ |
d62a17ae | 1003 | static struct ospf_network *ospf_network_new(struct in_addr area_id) |
718e3744 | 1004 | { |
d62a17ae | 1005 | struct ospf_network *new; |
1006 | new = XCALLOC(MTYPE_OSPF_NETWORK, sizeof(struct ospf_network)); | |
718e3744 | 1007 | |
d62a17ae | 1008 | new->area_id = area_id; |
1009 | new->area_id_fmt = OSPF_AREA_ID_FMT_DOTTEDQUAD; | |
1010 | ||
1011 | return new; | |
718e3744 | 1012 | } |
1013 | ||
d62a17ae | 1014 | static void ospf_network_free(struct ospf *ospf, struct ospf_network *network) |
718e3744 | 1015 | { |
d62a17ae | 1016 | ospf_area_check_free(ospf, network->area_id); |
1017 | ospf_schedule_abr_task(ospf); | |
1018 | XFREE(MTYPE_OSPF_NETWORK, network); | |
718e3744 | 1019 | } |
1020 | ||
d62a17ae | 1021 | int ospf_network_set(struct ospf *ospf, struct prefix_ipv4 *p, |
1022 | struct in_addr area_id, int df) | |
718e3744 | 1023 | { |
d62a17ae | 1024 | struct ospf_network *network; |
1025 | struct ospf_area *area; | |
1026 | struct route_node *rn; | |
718e3744 | 1027 | |
d62a17ae | 1028 | rn = route_node_get(ospf->networks, (struct prefix *)p); |
1029 | if (rn->info) { | |
2b0a905a | 1030 | network = rn->info; |
d62a17ae | 1031 | route_unlock_node(rn); |
2b0a905a DW |
1032 | |
1033 | if (IPV4_ADDR_SAME(&area_id, &network->area_id)) { | |
1034 | return 1; | |
1035 | } else { | |
1036 | /* There is already same network statement. */ | |
1037 | return 0; | |
1038 | } | |
d62a17ae | 1039 | } |
718e3744 | 1040 | |
d62a17ae | 1041 | rn->info = network = ospf_network_new(area_id); |
1042 | network->area_id_fmt = df; | |
1043 | area = ospf_area_get(ospf, area_id); | |
1044 | ospf_area_display_format_set(ospf, area, df); | |
718e3744 | 1045 | |
d62a17ae | 1046 | /* Run network config now. */ |
1047 | ospf_network_run((struct prefix *)p, area); | |
718e3744 | 1048 | |
d62a17ae | 1049 | /* Update connected redistribute. */ |
1050 | update_redistributed(ospf, 1); /* interfaces possibly added */ | |
718e3744 | 1051 | |
d62a17ae | 1052 | ospf_area_check_free(ospf, area_id); |
718e3744 | 1053 | |
d62a17ae | 1054 | return 1; |
718e3744 | 1055 | } |
1056 | ||
d62a17ae | 1057 | int ospf_network_unset(struct ospf *ospf, struct prefix_ipv4 *p, |
1058 | struct in_addr area_id) | |
718e3744 | 1059 | { |
d62a17ae | 1060 | struct route_node *rn; |
1061 | struct ospf_network *network; | |
1062 | struct listnode *node, *nnode; | |
1063 | struct ospf_interface *oi; | |
718e3744 | 1064 | |
d62a17ae | 1065 | rn = route_node_lookup(ospf->networks, (struct prefix *)p); |
1066 | if (rn == NULL) | |
1067 | return 0; | |
718e3744 | 1068 | |
d62a17ae | 1069 | network = rn->info; |
1070 | route_unlock_node(rn); | |
1071 | if (!IPV4_ADDR_SAME(&area_id, &network->area_id)) | |
1072 | return 0; | |
718e3744 | 1073 | |
d62a17ae | 1074 | ospf_network_free(ospf, rn->info); |
1075 | rn->info = NULL; | |
1076 | route_unlock_node(rn); /* initial reference */ | |
718e3744 | 1077 | |
30c0daa4 | 1078 | /* Find interfaces that are not configured already. */ |
d62a17ae | 1079 | for (ALL_LIST_ELEMENTS(ospf->oiflist, node, nnode, oi)) { |
30c0daa4 | 1080 | |
996c9314 LB |
1081 | if (oi->type == OSPF_IFTYPE_VIRTUALLINK) |
1082 | continue; | |
30c0daa4 | 1083 | |
996c9314 | 1084 | ospf_network_run_subnet(ospf, oi->connected, NULL, NULL); |
d62a17ae | 1085 | } |
953cde65 | 1086 | |
d62a17ae | 1087 | /* Update connected redistribute. */ |
1088 | update_redistributed(ospf, 0); /* interfaces possibly removed */ | |
1089 | ospf_area_check_free(ospf, area_id); | |
1090 | ||
1091 | return 1; | |
953cde65 JT |
1092 | } |
1093 | ||
52c62ab8 JAG |
1094 | /* Ensure there's an OSPF instance, as "ip ospf area" enabled OSPF means |
1095 | * there might not be any 'router ospf' config. | |
1096 | * | |
1097 | * Otherwise, doesn't do anything different to ospf_if_update for now | |
1098 | */ | |
b5a8894d | 1099 | void ospf_interface_area_set(struct ospf *ospf, struct interface *ifp) |
953cde65 | 1100 | { |
b5a8894d CS |
1101 | if (!ospf) |
1102 | return; | |
d62a17ae | 1103 | |
1104 | ospf_if_update(ospf, ifp); | |
1105 | /* if_update does a update_redistributed */ | |
1106 | ||
1107 | return; | |
953cde65 JT |
1108 | } |
1109 | ||
b5a8894d | 1110 | void ospf_interface_area_unset(struct ospf *ospf, struct interface *ifp) |
953cde65 | 1111 | { |
d62a17ae | 1112 | struct route_node *rn_oi; |
953cde65 | 1113 | |
d62a17ae | 1114 | if (!ospf) |
1115 | return; /* Ospf not ready yet */ | |
953cde65 | 1116 | |
d62a17ae | 1117 | /* Find interfaces that may need to be removed. */ |
1118 | for (rn_oi = route_top(IF_OIFS(ifp)); rn_oi; | |
1119 | rn_oi = route_next(rn_oi)) { | |
b5a8894d | 1120 | struct ospf_interface *oi = NULL; |
d62a17ae | 1121 | |
1122 | if ((oi = rn_oi->info) == NULL) | |
1123 | continue; | |
1124 | ||
1125 | if (oi->type == OSPF_IFTYPE_VIRTUALLINK) | |
1126 | continue; | |
1127 | ||
1128 | ospf_network_run_subnet(ospf, oi->connected, NULL, NULL); | |
1129 | } | |
953cde65 | 1130 | |
d62a17ae | 1131 | /* Update connected redistribute. */ |
1132 | update_redistributed(ospf, 0); /* interfaces possibly removed */ | |
718e3744 | 1133 | } |
1134 | ||
e9f07a30 PG |
1135 | bool ospf_interface_area_is_already_set(struct ospf *ospf, |
1136 | struct interface *ifp) | |
1137 | { | |
1138 | struct route_node *rn_oi; | |
1139 | ||
1140 | if (!ospf) | |
1141 | return false; /* Ospf not ready yet */ | |
1142 | ||
1143 | /* Find interfaces that may need to be removed. */ | |
1144 | for (rn_oi = route_top(IF_OIFS(ifp)); rn_oi; | |
1145 | rn_oi = route_next(rn_oi)) { | |
1146 | struct ospf_interface *oi = rn_oi->info; | |
1147 | ||
1148 | if (oi == NULL) | |
1149 | continue; | |
1150 | ||
1151 | if (oi->type == OSPF_IFTYPE_VIRTUALLINK) | |
1152 | continue; | |
1153 | /* at least one route covered by interface | |
1154 | * that implies already done | |
1155 | */ | |
1156 | return true; | |
1157 | } | |
1158 | return false; | |
1159 | } | |
1160 | ||
570f7598 | 1161 | /* Check whether interface matches given network |
1162 | * returns: 1, true. 0, false | |
1163 | */ | |
d62a17ae | 1164 | static int ospf_network_match_iface(const struct connected *co, |
1165 | const struct prefix *net) | |
570f7598 | 1166 | { |
d62a17ae | 1167 | /* new approach: more elegant and conceptually clean */ |
1168 | return prefix_match_network_statement(net, CONNECTED_PREFIX(co)); | |
570f7598 | 1169 | } |
1170 | ||
d62a17ae | 1171 | static void ospf_update_interface_area(struct connected *co, |
1172 | struct ospf_area *area) | |
52c62ab8 | 1173 | { |
d62a17ae | 1174 | struct ospf_interface *oi = ospf_if_table_lookup(co->ifp, co->address); |
1175 | ||
1176 | /* nothing to be done case */ | |
1177 | if (oi && oi->area == area) { | |
1178 | return; | |
1179 | } | |
1180 | ||
1181 | if (oi) | |
1182 | ospf_if_free(oi); | |
1183 | ||
1184 | add_ospf_interface(co, area); | |
52c62ab8 JAG |
1185 | } |
1186 | ||
1187 | /* Run OSPF for the given subnet, taking into account the following | |
1188 | * possible sources of area configuration, in the given order of preference: | |
1189 | * | |
1190 | * - Whether there is interface+address specific area configuration | |
1191 | * - Whether there is a default area for the interface | |
1192 | * - Whether there is an area given as a parameter. | |
1193 | * - If no specific network prefix/area is supplied, whether there's | |
1194 | * a matching network configured. | |
1195 | */ | |
d62a17ae | 1196 | static void ospf_network_run_subnet(struct ospf *ospf, struct connected *co, |
1197 | struct prefix *p, | |
1198 | struct ospf_area *given_area) | |
1199 | { | |
1200 | struct ospf_interface *oi; | |
1201 | struct ospf_if_params *params; | |
1202 | struct ospf_area *area = NULL; | |
1203 | struct route_node *rn; | |
1204 | int configed = 0; | |
1205 | ||
1206 | if (CHECK_FLAG(co->flags, ZEBRA_IFA_SECONDARY)) | |
1207 | return; | |
1208 | ||
1209 | if (co->address->family != AF_INET) | |
1210 | return; | |
1211 | ||
1212 | /* Try determine the appropriate area for this interface + address | |
1213 | * Start by checking interface config | |
1214 | */ | |
1215 | params = ospf_lookup_if_params(co->ifp, co->address->u.prefix4); | |
1216 | if (params && OSPF_IF_PARAM_CONFIGURED(params, if_area)) | |
1217 | area = ospf_area_get(ospf, params->if_area); | |
1218 | else { | |
1219 | params = IF_DEF_PARAMS(co->ifp); | |
1220 | if (OSPF_IF_PARAM_CONFIGURED(params, if_area)) | |
1221 | area = ospf_area_get(ospf, params->if_area); | |
1222 | } | |
52c62ab8 | 1223 | |
d62a17ae | 1224 | /* If we've found an interface and/or addr specific area, then we're |
1225 | * done | |
1226 | */ | |
1227 | if (area) { | |
1228 | ospf_update_interface_area(co, area); | |
1229 | return; | |
1230 | } | |
718e3744 | 1231 | |
d62a17ae | 1232 | /* Otherwise, only remaining possibility is a matching network statement |
1233 | */ | |
1234 | if (p) { | |
1235 | assert(given_area != NULL); | |
1236 | ||
1237 | /* Which either was supplied as a parameter.. (e.g. cause a new | |
1238 | * network/area was just added).. | |
1239 | */ | |
1240 | if (p->family == co->address->family | |
1241 | && ospf_network_match_iface(co, p)) | |
1242 | ospf_update_interface_area(co, given_area); | |
1243 | ||
1244 | return; | |
1245 | } | |
1246 | ||
1247 | /* Else we have to search the existing network/area config to see | |
1248 | * if any match.. | |
1249 | */ | |
1250 | for (rn = route_top(ospf->networks); rn; rn = route_next(rn)) | |
1251 | if (rn->info != NULL && ospf_network_match_iface(co, &rn->p)) { | |
1252 | struct ospf_network *network = | |
1253 | (struct ospf_network *)rn->info; | |
1254 | area = ospf_area_get(ospf, network->area_id); | |
1255 | ospf_update_interface_area(co, area); | |
1256 | configed = 1; | |
1257 | } | |
1258 | ||
1259 | /* If the subnet isn't in any area, deconfigure */ | |
1260 | if (!configed && (oi = ospf_if_table_lookup(co->ifp, co->address))) | |
1261 | ospf_if_free(oi); | |
718e3744 | 1262 | } |
1263 | ||
d62a17ae | 1264 | static void ospf_network_run_interface(struct ospf *ospf, struct interface *ifp, |
1265 | struct prefix *p, | |
1266 | struct ospf_area *given_area) | |
718e3744 | 1267 | { |
d62a17ae | 1268 | struct listnode *cnode; |
1269 | struct connected *co; | |
1270 | ||
1271 | if (memcmp(ifp->name, "VLINK", 5) == 0) | |
1272 | return; | |
718e3744 | 1273 | |
d62a17ae | 1274 | /* Network prefix without area is nonsensical */ |
1275 | if (p) | |
1276 | assert(given_area != NULL); | |
1277 | ||
1278 | /* if interface prefix is match specified prefix, | |
1279 | then create socket and join multicast group. */ | |
1280 | for (ALL_LIST_ELEMENTS_RO(ifp->connected, cnode, co)) | |
1281 | ospf_network_run_subnet(ospf, co, p, given_area); | |
718e3744 | 1282 | } |
1283 | ||
d62a17ae | 1284 | static void ospf_network_run(struct prefix *p, struct ospf_area *area) |
718e3744 | 1285 | { |
f4e14fdb | 1286 | struct vrf *vrf = vrf_lookup_by_id(area->ospf->vrf_id); |
d62a17ae | 1287 | struct interface *ifp; |
d62a17ae | 1288 | |
1289 | /* Schedule Router ID Update. */ | |
1290 | if (area->ospf->router_id.s_addr == 0) | |
1291 | ospf_router_id_update(area->ospf); | |
718e3744 | 1292 | |
d62a17ae | 1293 | /* Get target interface. */ |
451fda4f | 1294 | FOR_ALL_INTERFACES (vrf, ifp) |
d62a17ae | 1295 | ospf_network_run_interface(area->ospf, ifp, p, area); |
718e3744 | 1296 | } |
1297 | ||
d62a17ae | 1298 | void ospf_ls_upd_queue_empty(struct ospf_interface *oi) |
1299 | { | |
1300 | struct route_node *rn; | |
1301 | struct listnode *node, *nnode; | |
1302 | struct list *lst; | |
1303 | struct ospf_lsa *lsa; | |
1304 | ||
1305 | /* empty ls update queue */ | |
1306 | for (rn = route_top(oi->ls_upd_queue); rn; rn = route_next(rn)) | |
1307 | if ((lst = (struct list *)rn->info)) { | |
1308 | for (ALL_LIST_ELEMENTS(lst, node, nnode, lsa)) | |
1309 | ospf_lsa_unlock(&lsa); /* oi->ls_upd_queue */ | |
6a154c88 | 1310 | list_delete(&lst); |
d62a17ae | 1311 | rn->info = NULL; |
1312 | } | |
1313 | ||
1314 | /* remove update event */ | |
1315 | if (oi->t_ls_upd_event) { | |
1316 | thread_cancel(oi->t_ls_upd_event); | |
1317 | oi->t_ls_upd_event = NULL; | |
1318 | } | |
1319 | } | |
6b0655a2 | 1320 | |
d62a17ae | 1321 | void ospf_if_update(struct ospf *ospf, struct interface *ifp) |
718e3744 | 1322 | { |
43b8d1d8 | 1323 | |
d62a17ae | 1324 | if (!ospf) |
43b8d1d8 | 1325 | return; |
b5a8894d CS |
1326 | |
1327 | if (IS_DEBUG_OSPF_EVENT) | |
996c9314 | 1328 | zlog_debug( |
a36898e7 DS |
1329 | "%s: interface %s ifp->vrf_id %u ospf vrf %s vrf_id %u router_id %s", |
1330 | __PRETTY_FUNCTION__, ifp->name, ifp->vrf_id, | |
996c9314 LB |
1331 | ospf_vrf_id_to_name(ospf->vrf_id), ospf->vrf_id, |
1332 | inet_ntoa(ospf->router_id)); | |
d62a17ae | 1333 | |
1334 | /* OSPF must be ready. */ | |
1335 | if (!ospf_is_ready(ospf)) | |
1336 | return; | |
1337 | ||
1338 | ospf_network_run_interface(ospf, ifp, NULL, NULL); | |
1339 | ||
1340 | /* Update connected redistribute. */ | |
1341 | update_redistributed(ospf, 1); | |
ef7bd2a3 | 1342 | |
d62a17ae | 1343 | } |
718e3744 | 1344 | |
d62a17ae | 1345 | void ospf_remove_vls_through_area(struct ospf *ospf, struct ospf_area *area) |
718e3744 | 1346 | { |
d62a17ae | 1347 | struct listnode *node, *nnode; |
1348 | struct ospf_vl_data *vl_data; | |
718e3744 | 1349 | |
d62a17ae | 1350 | for (ALL_LIST_ELEMENTS(ospf->vlinks, node, nnode, vl_data)) |
1351 | if (IPV4_ADDR_SAME(&vl_data->vl_area_id, &area->area_id)) | |
1352 | ospf_vl_delete(ospf, vl_data); | |
1353 | } | |
718e3744 | 1354 | |
718e3744 | 1355 | |
d62a17ae | 1356 | static const struct message ospf_area_type_msg[] = { |
1357 | {OSPF_AREA_DEFAULT, "Default"}, | |
1358 | {OSPF_AREA_STUB, "Stub"}, | |
1359 | {OSPF_AREA_NSSA, "NSSA"}, | |
1360 | {0}}; | |
718e3744 | 1361 | |
d62a17ae | 1362 | static void ospf_area_type_set(struct ospf_area *area, int type) |
1363 | { | |
1364 | struct listnode *node; | |
1365 | struct ospf_interface *oi; | |
1366 | ||
1367 | if (area->external_routing == type) { | |
1368 | if (IS_DEBUG_OSPF_EVENT) | |
1369 | zlog_debug("Area[%s]: Types are the same, ignored.", | |
1370 | inet_ntoa(area->area_id)); | |
1371 | return; | |
1372 | } | |
718e3744 | 1373 | |
d62a17ae | 1374 | area->external_routing = type; |
1375 | ||
1376 | if (IS_DEBUG_OSPF_EVENT) | |
1377 | zlog_debug("Area[%s]: Configured as %s", | |
1378 | inet_ntoa(area->area_id), | |
1379 | lookup_msg(ospf_area_type_msg, type, NULL)); | |
1380 | ||
1381 | switch (area->external_routing) { | |
1382 | case OSPF_AREA_DEFAULT: | |
1383 | for (ALL_LIST_ELEMENTS_RO(area->oiflist, node, oi)) | |
1384 | if (oi->nbr_self != NULL) { | |
1385 | UNSET_FLAG(oi->nbr_self->options, | |
1386 | OSPF_OPTION_NP); | |
1387 | SET_FLAG(oi->nbr_self->options, OSPF_OPTION_E); | |
1388 | } | |
1389 | break; | |
1390 | case OSPF_AREA_STUB: | |
1391 | for (ALL_LIST_ELEMENTS_RO(area->oiflist, node, oi)) | |
1392 | if (oi->nbr_self != NULL) { | |
1393 | if (IS_DEBUG_OSPF_EVENT) | |
1394 | zlog_debug( | |
1395 | "setting options on %s accordingly", | |
1396 | IF_NAME(oi)); | |
1397 | UNSET_FLAG(oi->nbr_self->options, | |
1398 | OSPF_OPTION_NP); | |
1399 | UNSET_FLAG(oi->nbr_self->options, | |
1400 | OSPF_OPTION_E); | |
1401 | if (IS_DEBUG_OSPF_EVENT) | |
1402 | zlog_debug("options set on %s: %x", | |
1403 | IF_NAME(oi), OPTIONS(oi)); | |
1404 | } | |
1405 | break; | |
1406 | case OSPF_AREA_NSSA: | |
1407 | for (ALL_LIST_ELEMENTS_RO(area->oiflist, node, oi)) | |
1408 | if (oi->nbr_self != NULL) { | |
1409 | zlog_debug( | |
1410 | "setting nssa options on %s accordingly", | |
1411 | IF_NAME(oi)); | |
1412 | UNSET_FLAG(oi->nbr_self->options, | |
1413 | OSPF_OPTION_E); | |
1414 | SET_FLAG(oi->nbr_self->options, OSPF_OPTION_NP); | |
1415 | zlog_debug("options set on %s: %x", IF_NAME(oi), | |
1416 | OPTIONS(oi)); | |
1417 | } | |
1418 | break; | |
1419 | default: | |
1420 | break; | |
1421 | } | |
1422 | ||
1423 | ospf_router_lsa_update_area(area); | |
1424 | ospf_schedule_abr_task(area->ospf); | |
718e3744 | 1425 | } |
1426 | ||
d62a17ae | 1427 | int ospf_area_shortcut_set(struct ospf *ospf, struct ospf_area *area, int mode) |
718e3744 | 1428 | { |
d62a17ae | 1429 | if (area->shortcut_configured == mode) |
1430 | return 0; | |
718e3744 | 1431 | |
d62a17ae | 1432 | area->shortcut_configured = mode; |
1433 | ospf_router_lsa_update_area(area); | |
1434 | ospf_schedule_abr_task(ospf); | |
718e3744 | 1435 | |
d62a17ae | 1436 | ospf_area_check_free(ospf, area->area_id); |
718e3744 | 1437 | |
d62a17ae | 1438 | return 1; |
718e3744 | 1439 | } |
1440 | ||
d62a17ae | 1441 | int ospf_area_shortcut_unset(struct ospf *ospf, struct ospf_area *area) |
718e3744 | 1442 | { |
d62a17ae | 1443 | area->shortcut_configured = OSPF_SHORTCUT_DEFAULT; |
1444 | ospf_router_lsa_update_area(area); | |
1445 | ospf_area_check_free(ospf, area->area_id); | |
1446 | ospf_schedule_abr_task(ospf); | |
718e3744 | 1447 | |
d62a17ae | 1448 | return 1; |
718e3744 | 1449 | } |
1450 | ||
d62a17ae | 1451 | static int ospf_area_vlink_count(struct ospf *ospf, struct ospf_area *area) |
718e3744 | 1452 | { |
d62a17ae | 1453 | struct ospf_vl_data *vl; |
1454 | struct listnode *node; | |
1455 | int count = 0; | |
718e3744 | 1456 | |
d62a17ae | 1457 | for (ALL_LIST_ELEMENTS_RO(ospf->vlinks, node, vl)) |
1458 | if (IPV4_ADDR_SAME(&vl->vl_area_id, &area->area_id)) | |
1459 | count++; | |
718e3744 | 1460 | |
d62a17ae | 1461 | return count; |
718e3744 | 1462 | } |
1463 | ||
d62a17ae | 1464 | int ospf_area_display_format_set(struct ospf *ospf, struct ospf_area *area, |
1465 | int df) | |
86573dcb | 1466 | { |
d62a17ae | 1467 | area->area_id_fmt = df; |
86573dcb | 1468 | |
d62a17ae | 1469 | return 1; |
86573dcb QY |
1470 | } |
1471 | ||
d62a17ae | 1472 | int ospf_area_stub_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 | if (ospf_area_vlink_count(ospf, area)) | |
1478 | return 0; | |
718e3744 | 1479 | |
d62a17ae | 1480 | if (area->external_routing != OSPF_AREA_STUB) |
1481 | ospf_area_type_set(area, OSPF_AREA_STUB); | |
718e3744 | 1482 | |
d62a17ae | 1483 | return 1; |
718e3744 | 1484 | } |
1485 | ||
d62a17ae | 1486 | int ospf_area_stub_unset(struct ospf *ospf, struct in_addr area_id) |
718e3744 | 1487 | { |
d62a17ae | 1488 | struct ospf_area *area; |
718e3744 | 1489 | |
d62a17ae | 1490 | area = ospf_area_lookup_by_area_id(ospf, area_id); |
1491 | if (area == NULL) | |
1492 | return 1; | |
718e3744 | 1493 | |
d62a17ae | 1494 | if (area->external_routing == OSPF_AREA_STUB) |
1495 | ospf_area_type_set(area, OSPF_AREA_DEFAULT); | |
718e3744 | 1496 | |
d62a17ae | 1497 | ospf_area_check_free(ospf, area_id); |
718e3744 | 1498 | |
d62a17ae | 1499 | return 1; |
718e3744 | 1500 | } |
1501 | ||
d62a17ae | 1502 | int ospf_area_no_summary_set(struct ospf *ospf, struct in_addr area_id) |
718e3744 | 1503 | { |
d62a17ae | 1504 | struct ospf_area *area; |
718e3744 | 1505 | |
d62a17ae | 1506 | area = ospf_area_get(ospf, area_id); |
1507 | area->no_summary = 1; | |
718e3744 | 1508 | |
d62a17ae | 1509 | return 1; |
718e3744 | 1510 | } |
1511 | ||
d62a17ae | 1512 | int ospf_area_no_summary_unset(struct ospf *ospf, struct in_addr area_id) |
718e3744 | 1513 | { |
d62a17ae | 1514 | struct ospf_area *area; |
718e3744 | 1515 | |
d62a17ae | 1516 | area = ospf_area_lookup_by_area_id(ospf, area_id); |
1517 | if (area == NULL) | |
1518 | return 0; | |
718e3744 | 1519 | |
d62a17ae | 1520 | area->no_summary = 0; |
1521 | ospf_area_check_free(ospf, area_id); | |
718e3744 | 1522 | |
d62a17ae | 1523 | return 1; |
718e3744 | 1524 | } |
1525 | ||
7ef56a73 | 1526 | int ospf_area_nssa_no_summary_set(struct ospf *ospf, struct in_addr area_id) |
718e3744 | 1527 | { |
d62a17ae | 1528 | struct ospf_area *area; |
718e3744 | 1529 | |
d62a17ae | 1530 | area = ospf_area_get(ospf, area_id); |
1531 | if (ospf_area_vlink_count(ospf, area)) | |
1532 | return 0; | |
718e3744 | 1533 | |
d62a17ae | 1534 | if (area->external_routing != OSPF_AREA_NSSA) { |
1535 | ospf_area_type_set(area, OSPF_AREA_NSSA); | |
1536 | ospf->anyNSSA++; | |
7ef56a73 | 1537 | area->NSSATranslatorRole = OSPF_NSSA_ROLE_CANDIDATE; |
d62a17ae | 1538 | } |
718e3744 | 1539 | |
7ef56a73 | 1540 | ospf_area_no_summary_set(ospf, area_id); |
084c7844 | 1541 | |
d62a17ae | 1542 | return 1; |
718e3744 | 1543 | } |
1544 | ||
7ef56a73 CS |
1545 | int ospf_area_nssa_set(struct ospf *ospf, struct in_addr area_id) |
1546 | { | |
1547 | struct ospf_area *area; | |
1548 | ||
1549 | area = ospf_area_get(ospf, area_id); | |
1550 | if (ospf_area_vlink_count(ospf, area)) | |
1551 | return 0; | |
1552 | ||
1553 | if (area->external_routing != OSPF_AREA_NSSA) { | |
1554 | ospf_area_type_set(area, OSPF_AREA_NSSA); | |
1555 | ospf->anyNSSA++; | |
1556 | ||
1557 | /* set NSSA area defaults */ | |
1558 | area->no_summary = 0; | |
1559 | area->NSSATranslatorRole = OSPF_NSSA_ROLE_CANDIDATE; | |
1560 | area->NSSATranslatorState = OSPF_NSSA_TRANSLATE_DISABLED; | |
1561 | area->NSSATranslatorStabilityInterval = | |
1562 | OSPF_NSSA_TRANS_STABLE_DEFAULT; | |
1563 | } | |
1564 | return 1; | |
1565 | } | |
1566 | ||
1567 | int ospf_area_nssa_unset(struct ospf *ospf, struct in_addr area_id, int argc) | |
718e3744 | 1568 | { |
d62a17ae | 1569 | struct ospf_area *area; |
718e3744 | 1570 | |
d62a17ae | 1571 | area = ospf_area_lookup_by_area_id(ospf, area_id); |
1572 | if (area == NULL) | |
1573 | return 0; | |
718e3744 | 1574 | |
7ef56a73 CS |
1575 | /* argc < 5 -> 'no area x nssa' */ |
1576 | if (argc < 5 && area->external_routing == OSPF_AREA_NSSA) { | |
d62a17ae | 1577 | ospf->anyNSSA--; |
7ef56a73 CS |
1578 | /* set NSSA area defaults */ |
1579 | area->no_summary = 0; | |
1580 | area->NSSATranslatorRole = OSPF_NSSA_ROLE_CANDIDATE; | |
1581 | area->NSSATranslatorState = OSPF_NSSA_TRANSLATE_DISABLED; | |
1582 | area->NSSATranslatorStabilityInterval = | |
1583 | OSPF_NSSA_TRANS_STABLE_DEFAULT; | |
d62a17ae | 1584 | ospf_area_type_set(area, OSPF_AREA_DEFAULT); |
7ef56a73 CS |
1585 | } else { |
1586 | area->NSSATranslatorRole = OSPF_NSSA_ROLE_CANDIDATE; | |
d62a17ae | 1587 | } |
718e3744 | 1588 | |
d62a17ae | 1589 | ospf_area_check_free(ospf, area_id); |
718e3744 | 1590 | |
d62a17ae | 1591 | return 1; |
718e3744 | 1592 | } |
1593 | ||
d62a17ae | 1594 | int ospf_area_nssa_translator_role_set(struct ospf *ospf, |
1595 | struct in_addr area_id, int role) | |
718e3744 | 1596 | { |
d62a17ae | 1597 | struct ospf_area *area; |
718e3744 | 1598 | |
d62a17ae | 1599 | area = ospf_area_lookup_by_area_id(ospf, area_id); |
1600 | if (area == NULL) | |
1601 | return 0; | |
718e3744 | 1602 | |
d62a17ae | 1603 | area->NSSATranslatorRole = role; |
718e3744 | 1604 | |
d62a17ae | 1605 | return 1; |
718e3744 | 1606 | } |
1607 | ||
075e12f5 | 1608 | #if 0 |
4dadc291 | 1609 | /* XXX: unused? Leave for symmetry? */ |
1610 | static int | |
718e3744 | 1611 | ospf_area_nssa_translator_role_unset (struct ospf *ospf, |
1612 | struct in_addr area_id) | |
1613 | { | |
1614 | struct ospf_area *area; | |
1615 | ||
68980084 | 1616 | area = ospf_area_lookup_by_area_id (ospf, area_id); |
718e3744 | 1617 | if (area == NULL) |
1618 | return 0; | |
1619 | ||
084c7844 | 1620 | area->NSSATranslatorRole = OSPF_NSSA_ROLE_CANDIDATE; |
718e3744 | 1621 | |
68980084 | 1622 | ospf_area_check_free (ospf, area_id); |
718e3744 | 1623 | |
1624 | return 1; | |
1625 | } | |
075e12f5 | 1626 | #endif |
718e3744 | 1627 | |
d62a17ae | 1628 | int ospf_area_export_list_set(struct ospf *ospf, struct ospf_area *area, |
1629 | const char *list_name) | |
718e3744 | 1630 | { |
d62a17ae | 1631 | struct access_list *list; |
1632 | list = access_list_lookup(AFI_IP, list_name); | |
718e3744 | 1633 | |
d62a17ae | 1634 | EXPORT_LIST(area) = list; |
718e3744 | 1635 | |
d62a17ae | 1636 | if (EXPORT_NAME(area)) |
1637 | free(EXPORT_NAME(area)); | |
718e3744 | 1638 | |
d62a17ae | 1639 | EXPORT_NAME(area) = strdup(list_name); |
1640 | ospf_schedule_abr_task(ospf); | |
718e3744 | 1641 | |
d62a17ae | 1642 | return 1; |
718e3744 | 1643 | } |
1644 | ||
d62a17ae | 1645 | int ospf_area_export_list_unset(struct ospf *ospf, struct ospf_area *area) |
718e3744 | 1646 | { |
1647 | ||
d62a17ae | 1648 | EXPORT_LIST(area) = 0; |
718e3744 | 1649 | |
d62a17ae | 1650 | if (EXPORT_NAME(area)) |
1651 | free(EXPORT_NAME(area)); | |
718e3744 | 1652 | |
d62a17ae | 1653 | EXPORT_NAME(area) = NULL; |
718e3744 | 1654 | |
d62a17ae | 1655 | ospf_area_check_free(ospf, area->area_id); |
718e3744 | 1656 | |
d62a17ae | 1657 | ospf_schedule_abr_task(ospf); |
1658 | ||
1659 | return 1; | |
718e3744 | 1660 | } |
1661 | ||
d62a17ae | 1662 | int ospf_area_import_list_set(struct ospf *ospf, struct ospf_area *area, |
1663 | const char *name) | |
718e3744 | 1664 | { |
d62a17ae | 1665 | struct access_list *list; |
1666 | list = access_list_lookup(AFI_IP, name); | |
718e3744 | 1667 | |
d62a17ae | 1668 | IMPORT_LIST(area) = list; |
718e3744 | 1669 | |
d62a17ae | 1670 | if (IMPORT_NAME(area)) |
1671 | free(IMPORT_NAME(area)); | |
718e3744 | 1672 | |
d62a17ae | 1673 | IMPORT_NAME(area) = strdup(name); |
1674 | ospf_schedule_abr_task(ospf); | |
718e3744 | 1675 | |
d62a17ae | 1676 | return 1; |
718e3744 | 1677 | } |
1678 | ||
d62a17ae | 1679 | int ospf_area_import_list_unset(struct ospf *ospf, struct ospf_area *area) |
718e3744 | 1680 | { |
d62a17ae | 1681 | IMPORT_LIST(area) = 0; |
718e3744 | 1682 | |
d62a17ae | 1683 | if (IMPORT_NAME(area)) |
1684 | free(IMPORT_NAME(area)); | |
718e3744 | 1685 | |
d62a17ae | 1686 | IMPORT_NAME(area) = NULL; |
1687 | ospf_area_check_free(ospf, area->area_id); | |
718e3744 | 1688 | |
d62a17ae | 1689 | ospf_schedule_abr_task(ospf); |
718e3744 | 1690 | |
d62a17ae | 1691 | return 1; |
718e3744 | 1692 | } |
1693 | ||
d62a17ae | 1694 | int ospf_timers_refresh_set(struct ospf *ospf, int interval) |
718e3744 | 1695 | { |
d62a17ae | 1696 | int time_left; |
718e3744 | 1697 | |
d62a17ae | 1698 | if (ospf->lsa_refresh_interval == interval) |
1699 | return 1; | |
718e3744 | 1700 | |
d62a17ae | 1701 | time_left = ospf->lsa_refresh_interval |
1702 | - (monotime(NULL) - ospf->lsa_refresher_started); | |
718e3744 | 1703 | |
d62a17ae | 1704 | if (time_left > interval) { |
1705 | OSPF_TIMER_OFF(ospf->t_lsa_refresher); | |
1706 | thread_add_timer(master, ospf_lsa_refresh_walker, ospf, | |
1707 | interval, &ospf->t_lsa_refresher); | |
1708 | } | |
1709 | ospf->lsa_refresh_interval = interval; | |
1710 | ||
1711 | return 1; | |
718e3744 | 1712 | } |
1713 | ||
d62a17ae | 1714 | int ospf_timers_refresh_unset(struct ospf *ospf) |
718e3744 | 1715 | { |
d62a17ae | 1716 | int time_left; |
718e3744 | 1717 | |
d62a17ae | 1718 | time_left = ospf->lsa_refresh_interval |
1719 | - (monotime(NULL) - ospf->lsa_refresher_started); | |
718e3744 | 1720 | |
d62a17ae | 1721 | if (time_left > OSPF_LSA_REFRESH_INTERVAL_DEFAULT) { |
1722 | OSPF_TIMER_OFF(ospf->t_lsa_refresher); | |
1723 | ospf->t_lsa_refresher = NULL; | |
1724 | thread_add_timer(master, ospf_lsa_refresh_walker, ospf, | |
1725 | OSPF_LSA_REFRESH_INTERVAL_DEFAULT, | |
1726 | &ospf->t_lsa_refresher); | |
1727 | } | |
718e3744 | 1728 | |
d62a17ae | 1729 | ospf->lsa_refresh_interval = OSPF_LSA_REFRESH_INTERVAL_DEFAULT; |
718e3744 | 1730 | |
d62a17ae | 1731 | return 1; |
718e3744 | 1732 | } |
1733 | ||
6b0655a2 | 1734 | |
d62a17ae | 1735 | static struct ospf_nbr_nbma *ospf_nbr_nbma_new(void) |
718e3744 | 1736 | { |
d62a17ae | 1737 | struct ospf_nbr_nbma *nbr_nbma; |
718e3744 | 1738 | |
d62a17ae | 1739 | nbr_nbma = XCALLOC(MTYPE_OSPF_NEIGHBOR_STATIC, |
1740 | sizeof(struct ospf_nbr_nbma)); | |
718e3744 | 1741 | |
d62a17ae | 1742 | nbr_nbma->priority = OSPF_NEIGHBOR_PRIORITY_DEFAULT; |
1743 | nbr_nbma->v_poll = OSPF_POLL_INTERVAL_DEFAULT; | |
718e3744 | 1744 | |
d62a17ae | 1745 | return nbr_nbma; |
718e3744 | 1746 | } |
1747 | ||
d62a17ae | 1748 | static void ospf_nbr_nbma_free(struct ospf_nbr_nbma *nbr_nbma) |
718e3744 | 1749 | { |
d62a17ae | 1750 | XFREE(MTYPE_OSPF_NEIGHBOR_STATIC, nbr_nbma); |
718e3744 | 1751 | } |
1752 | ||
d62a17ae | 1753 | static void ospf_nbr_nbma_delete(struct ospf *ospf, |
1754 | struct ospf_nbr_nbma *nbr_nbma) | |
718e3744 | 1755 | { |
d62a17ae | 1756 | struct route_node *rn; |
1757 | struct prefix_ipv4 p; | |
718e3744 | 1758 | |
d62a17ae | 1759 | p.family = AF_INET; |
1760 | p.prefix = nbr_nbma->addr; | |
1761 | p.prefixlen = IPV4_MAX_BITLEN; | |
718e3744 | 1762 | |
d62a17ae | 1763 | rn = route_node_lookup(ospf->nbr_nbma, (struct prefix *)&p); |
1764 | if (rn) { | |
1765 | ospf_nbr_nbma_free(rn->info); | |
1766 | rn->info = NULL; | |
1767 | route_unlock_node(rn); | |
1768 | route_unlock_node(rn); | |
1769 | } | |
718e3744 | 1770 | } |
1771 | ||
d62a17ae | 1772 | static void ospf_nbr_nbma_down(struct ospf_nbr_nbma *nbr_nbma) |
718e3744 | 1773 | { |
d62a17ae | 1774 | OSPF_TIMER_OFF(nbr_nbma->t_poll); |
718e3744 | 1775 | |
d62a17ae | 1776 | if (nbr_nbma->nbr) { |
1777 | nbr_nbma->nbr->nbr_nbma = NULL; | |
1778 | OSPF_NSM_EVENT_EXECUTE(nbr_nbma->nbr, NSM_KillNbr); | |
1779 | } | |
718e3744 | 1780 | |
d62a17ae | 1781 | if (nbr_nbma->oi) |
1782 | listnode_delete(nbr_nbma->oi->nbr_nbma, nbr_nbma); | |
718e3744 | 1783 | } |
1784 | ||
d62a17ae | 1785 | static void ospf_nbr_nbma_add(struct ospf_nbr_nbma *nbr_nbma, |
1786 | struct ospf_interface *oi) | |
718e3744 | 1787 | { |
d62a17ae | 1788 | struct ospf_neighbor *nbr; |
1789 | struct route_node *rn; | |
1790 | struct prefix p; | |
718e3744 | 1791 | |
d62a17ae | 1792 | if (oi->type != OSPF_IFTYPE_NBMA) |
1793 | return; | |
718e3744 | 1794 | |
d62a17ae | 1795 | if (nbr_nbma->nbr != NULL) |
1796 | return; | |
718e3744 | 1797 | |
d62a17ae | 1798 | if (IPV4_ADDR_SAME(&oi->nbr_self->address.u.prefix4, &nbr_nbma->addr)) |
1799 | return; | |
718e3744 | 1800 | |
d62a17ae | 1801 | nbr_nbma->oi = oi; |
1802 | listnode_add(oi->nbr_nbma, nbr_nbma); | |
718e3744 | 1803 | |
d62a17ae | 1804 | /* Get neighbor information from table. */ |
1805 | p.family = AF_INET; | |
1806 | p.prefixlen = IPV4_MAX_BITLEN; | |
1807 | p.u.prefix4 = nbr_nbma->addr; | |
718e3744 | 1808 | |
d62a17ae | 1809 | rn = route_node_get(oi->nbrs, (struct prefix *)&p); |
1810 | if (rn->info) { | |
1811 | nbr = rn->info; | |
1812 | nbr->nbr_nbma = nbr_nbma; | |
1813 | nbr_nbma->nbr = nbr; | |
718e3744 | 1814 | |
d62a17ae | 1815 | route_unlock_node(rn); |
1816 | } else { | |
1817 | nbr = rn->info = ospf_nbr_new(oi); | |
1818 | nbr->state = NSM_Down; | |
1819 | nbr->src = nbr_nbma->addr; | |
1820 | nbr->nbr_nbma = nbr_nbma; | |
1821 | nbr->priority = nbr_nbma->priority; | |
1822 | nbr->address = p; | |
718e3744 | 1823 | |
d62a17ae | 1824 | nbr_nbma->nbr = nbr; |
1825 | ||
1826 | OSPF_NSM_EVENT_EXECUTE(nbr, NSM_Start); | |
1827 | } | |
718e3744 | 1828 | } |
1829 | ||
d62a17ae | 1830 | void ospf_nbr_nbma_if_update(struct ospf *ospf, struct ospf_interface *oi) |
718e3744 | 1831 | { |
d62a17ae | 1832 | struct ospf_nbr_nbma *nbr_nbma; |
1833 | struct route_node *rn; | |
1834 | struct prefix_ipv4 p; | |
718e3744 | 1835 | |
d62a17ae | 1836 | if (oi->type != OSPF_IFTYPE_NBMA) |
1837 | return; | |
718e3744 | 1838 | |
d62a17ae | 1839 | for (rn = route_top(ospf->nbr_nbma); rn; rn = route_next(rn)) |
1840 | if ((nbr_nbma = rn->info)) | |
1841 | if (nbr_nbma->oi == NULL && nbr_nbma->nbr == NULL) { | |
1842 | p.family = AF_INET; | |
1843 | p.prefix = nbr_nbma->addr; | |
1844 | p.prefixlen = IPV4_MAX_BITLEN; | |
718e3744 | 1845 | |
d62a17ae | 1846 | if (prefix_match(oi->address, |
1847 | (struct prefix *)&p)) | |
1848 | ospf_nbr_nbma_add(nbr_nbma, oi); | |
1849 | } | |
718e3744 | 1850 | } |
1851 | ||
d62a17ae | 1852 | struct ospf_nbr_nbma *ospf_nbr_nbma_lookup(struct ospf *ospf, |
1853 | struct in_addr nbr_addr) | |
718e3744 | 1854 | { |
d62a17ae | 1855 | struct route_node *rn; |
1856 | struct prefix_ipv4 p; | |
718e3744 | 1857 | |
d62a17ae | 1858 | p.family = AF_INET; |
1859 | p.prefix = nbr_addr; | |
1860 | p.prefixlen = IPV4_MAX_BITLEN; | |
718e3744 | 1861 | |
d62a17ae | 1862 | rn = route_node_lookup(ospf->nbr_nbma, (struct prefix *)&p); |
1863 | if (rn) { | |
1864 | route_unlock_node(rn); | |
1865 | return rn->info; | |
1866 | } | |
1867 | return NULL; | |
718e3744 | 1868 | } |
1869 | ||
d62a17ae | 1870 | struct ospf_nbr_nbma *ospf_nbr_nbma_lookup_next(struct ospf *ospf, |
1871 | struct in_addr *addr, int first) | |
718e3744 | 1872 | { |
1873 | #if 0 | |
1874 | struct ospf_nbr_nbma *nbr_nbma; | |
52dc7ee6 | 1875 | struct listnode *node; |
718e3744 | 1876 | #endif |
1877 | ||
d62a17ae | 1878 | if (ospf == NULL) |
1879 | return NULL; | |
718e3744 | 1880 | |
1881 | #if 0 | |
1eb8ef25 | 1882 | for (ALL_LIST_ELEMENTS_RO (ospf->nbr_nbma, node, nbr_nbma)) |
718e3744 | 1883 | { |
718e3744 | 1884 | if (first) |
1885 | { | |
1886 | *addr = nbr_nbma->addr; | |
1887 | return nbr_nbma; | |
1888 | } | |
1889 | else if (ntohl (nbr_nbma->addr.s_addr) > ntohl (addr->s_addr)) | |
1890 | { | |
1891 | *addr = nbr_nbma->addr; | |
1892 | return nbr_nbma; | |
1893 | } | |
1894 | } | |
1895 | #endif | |
d62a17ae | 1896 | return NULL; |
718e3744 | 1897 | } |
1898 | ||
d62a17ae | 1899 | int ospf_nbr_nbma_set(struct ospf *ospf, struct in_addr nbr_addr) |
718e3744 | 1900 | { |
d62a17ae | 1901 | struct ospf_nbr_nbma *nbr_nbma; |
1902 | struct ospf_interface *oi; | |
1903 | struct prefix_ipv4 p; | |
1904 | struct route_node *rn; | |
1905 | struct listnode *node; | |
718e3744 | 1906 | |
d62a17ae | 1907 | nbr_nbma = ospf_nbr_nbma_lookup(ospf, nbr_addr); |
1908 | if (nbr_nbma) | |
1909 | return 0; | |
718e3744 | 1910 | |
d62a17ae | 1911 | nbr_nbma = ospf_nbr_nbma_new(); |
1912 | nbr_nbma->addr = nbr_addr; | |
718e3744 | 1913 | |
d62a17ae | 1914 | p.family = AF_INET; |
1915 | p.prefix = nbr_addr; | |
1916 | p.prefixlen = IPV4_MAX_BITLEN; | |
718e3744 | 1917 | |
d62a17ae | 1918 | rn = route_node_get(ospf->nbr_nbma, (struct prefix *)&p); |
1919 | if (rn->info) | |
1920 | route_unlock_node(rn); | |
1921 | rn->info = nbr_nbma; | |
718e3744 | 1922 | |
d62a17ae | 1923 | for (ALL_LIST_ELEMENTS_RO(ospf->oiflist, node, oi)) { |
1924 | if (oi->type == OSPF_IFTYPE_NBMA) | |
1925 | if (prefix_match(oi->address, (struct prefix *)&p)) { | |
1926 | ospf_nbr_nbma_add(nbr_nbma, oi); | |
1927 | break; | |
1928 | } | |
1929 | } | |
718e3744 | 1930 | |
d62a17ae | 1931 | return 1; |
718e3744 | 1932 | } |
1933 | ||
d62a17ae | 1934 | int ospf_nbr_nbma_unset(struct ospf *ospf, struct in_addr nbr_addr) |
718e3744 | 1935 | { |
d62a17ae | 1936 | struct ospf_nbr_nbma *nbr_nbma; |
718e3744 | 1937 | |
d62a17ae | 1938 | nbr_nbma = ospf_nbr_nbma_lookup(ospf, nbr_addr); |
1939 | if (nbr_nbma == NULL) | |
1940 | return 0; | |
718e3744 | 1941 | |
d62a17ae | 1942 | ospf_nbr_nbma_down(nbr_nbma); |
1943 | ospf_nbr_nbma_delete(ospf, nbr_nbma); | |
718e3744 | 1944 | |
d62a17ae | 1945 | return 1; |
718e3744 | 1946 | } |
1947 | ||
d62a17ae | 1948 | int ospf_nbr_nbma_priority_set(struct ospf *ospf, struct in_addr nbr_addr, |
d7c0a89a | 1949 | uint8_t priority) |
718e3744 | 1950 | { |
d62a17ae | 1951 | struct ospf_nbr_nbma *nbr_nbma; |
718e3744 | 1952 | |
d62a17ae | 1953 | nbr_nbma = ospf_nbr_nbma_lookup(ospf, nbr_addr); |
1954 | if (nbr_nbma == NULL) | |
1955 | return 0; | |
718e3744 | 1956 | |
d62a17ae | 1957 | if (nbr_nbma->priority != priority) |
1958 | nbr_nbma->priority = priority; | |
718e3744 | 1959 | |
d62a17ae | 1960 | return 1; |
718e3744 | 1961 | } |
1962 | ||
d62a17ae | 1963 | int ospf_nbr_nbma_priority_unset(struct ospf *ospf, struct in_addr nbr_addr) |
718e3744 | 1964 | { |
d62a17ae | 1965 | struct ospf_nbr_nbma *nbr_nbma; |
718e3744 | 1966 | |
d62a17ae | 1967 | nbr_nbma = ospf_nbr_nbma_lookup(ospf, nbr_addr); |
1968 | if (nbr_nbma == NULL) | |
1969 | return 0; | |
718e3744 | 1970 | |
d62a17ae | 1971 | if (nbr_nbma != OSPF_NEIGHBOR_PRIORITY_DEFAULT) |
1972 | nbr_nbma->priority = OSPF_NEIGHBOR_PRIORITY_DEFAULT; | |
718e3744 | 1973 | |
d62a17ae | 1974 | return 1; |
718e3744 | 1975 | } |
1976 | ||
d62a17ae | 1977 | int ospf_nbr_nbma_poll_interval_set(struct ospf *ospf, struct in_addr nbr_addr, |
1978 | unsigned int interval) | |
718e3744 | 1979 | { |
d62a17ae | 1980 | struct ospf_nbr_nbma *nbr_nbma; |
718e3744 | 1981 | |
d62a17ae | 1982 | nbr_nbma = ospf_nbr_nbma_lookup(ospf, nbr_addr); |
1983 | if (nbr_nbma == NULL) | |
1984 | return 0; | |
718e3744 | 1985 | |
d62a17ae | 1986 | if (nbr_nbma->v_poll != interval) { |
1987 | nbr_nbma->v_poll = interval; | |
1988 | if (nbr_nbma->oi && ospf_if_is_up(nbr_nbma->oi)) { | |
1989 | OSPF_TIMER_OFF(nbr_nbma->t_poll); | |
1990 | OSPF_POLL_TIMER_ON(nbr_nbma->t_poll, ospf_poll_timer, | |
1991 | nbr_nbma->v_poll); | |
1992 | } | |
718e3744 | 1993 | } |
718e3744 | 1994 | |
d62a17ae | 1995 | return 1; |
718e3744 | 1996 | } |
1997 | ||
d62a17ae | 1998 | int ospf_nbr_nbma_poll_interval_unset(struct ospf *ospf, struct in_addr addr) |
718e3744 | 1999 | { |
d62a17ae | 2000 | struct ospf_nbr_nbma *nbr_nbma; |
718e3744 | 2001 | |
d62a17ae | 2002 | nbr_nbma = ospf_nbr_nbma_lookup(ospf, addr); |
2003 | if (nbr_nbma == NULL) | |
2004 | return 0; | |
718e3744 | 2005 | |
d62a17ae | 2006 | if (nbr_nbma->v_poll != OSPF_POLL_INTERVAL_DEFAULT) |
2007 | nbr_nbma->v_poll = OSPF_POLL_INTERVAL_DEFAULT; | |
718e3744 | 2008 | |
d62a17ae | 2009 | return 1; |
718e3744 | 2010 | } |
2011 | ||
d62a17ae | 2012 | void ospf_master_init(struct thread_master *master) |
718e3744 | 2013 | { |
d62a17ae | 2014 | memset(&ospf_master, 0, sizeof(struct ospf_master)); |
020709f9 | 2015 | |
d62a17ae | 2016 | om = &ospf_master; |
2017 | om->ospf = list_new(); | |
2018 | om->master = master; | |
020709f9 | 2019 | } |
b5a8894d CS |
2020 | |
2021 | /* Link OSPF instance to VRF. */ | |
2022 | void ospf_vrf_link(struct ospf *ospf, struct vrf *vrf) | |
2023 | { | |
2024 | ospf->vrf_id = vrf->vrf_id; | |
2025 | if (vrf->info != (void *)ospf) | |
2026 | vrf->info = (void *)ospf; | |
2027 | } | |
2028 | ||
2029 | /* Unlink OSPF instance from VRF. */ | |
2030 | void ospf_vrf_unlink(struct ospf *ospf, struct vrf *vrf) | |
2031 | { | |
2032 | if (vrf->info == (void *)ospf) | |
2033 | vrf->info = NULL; | |
2034 | ospf->vrf_id = VRF_UNKNOWN; | |
2035 | } | |
2036 | ||
2037 | /* This is hook function for vrf create called as part of vrf_init */ | |
2038 | static int ospf_vrf_new(struct vrf *vrf) | |
2039 | { | |
2040 | if (IS_DEBUG_OSPF_EVENT) | |
fe3da9e7 | 2041 | zlog_debug("%s: VRF Created: %s(%u)", __PRETTY_FUNCTION__, |
b5a8894d CS |
2042 | vrf->name, vrf->vrf_id); |
2043 | ||
2044 | return 0; | |
2045 | } | |
2046 | ||
2047 | /* This is hook function for vrf delete call as part of vrf_init */ | |
2048 | static int ospf_vrf_delete(struct vrf *vrf) | |
2049 | { | |
2050 | if (IS_DEBUG_OSPF_EVENT) | |
fe3da9e7 | 2051 | zlog_debug("%s: VRF Deletion: %s(%u)", __PRETTY_FUNCTION__, |
b5a8894d CS |
2052 | vrf->name, vrf->vrf_id); |
2053 | ||
2054 | return 0; | |
2055 | } | |
2056 | ||
3d9f7302 PZ |
2057 | static void ospf_set_redist_vrf_bitmaps(struct ospf *ospf) |
2058 | { | |
2059 | int type; | |
2060 | struct list *red_list; | |
2061 | ||
2062 | for (type = 0; type < ZEBRA_ROUTE_MAX; type++) { | |
2063 | red_list = ospf->redist[type]; | |
2064 | if (!red_list) | |
2065 | continue; | |
2066 | if (IS_DEBUG_OSPF_EVENT) | |
2067 | zlog_debug( | |
2068 | "%s: setting redist vrf %d bitmap for type %d", | |
2069 | __func__, ospf->vrf_id, type); | |
2070 | vrf_bitmap_set(zclient->redist[AFI_IP][type], ospf->vrf_id); | |
2071 | } | |
2072 | } | |
2073 | ||
b5a8894d CS |
2074 | /* Enable OSPF VRF instance */ |
2075 | static int ospf_vrf_enable(struct vrf *vrf) | |
2076 | { | |
2077 | struct ospf *ospf = NULL; | |
7d206035 | 2078 | vrf_id_t old_vrf_id; |
3c0eb8fa | 2079 | int ret = 0; |
b5a8894d CS |
2080 | |
2081 | if (IS_DEBUG_OSPF_EVENT) | |
996c9314 LB |
2082 | zlog_debug("%s: VRF %s id %u enabled", __PRETTY_FUNCTION__, |
2083 | vrf->name, vrf->vrf_id); | |
b5a8894d CS |
2084 | |
2085 | ospf = ospf_lookup_by_name(vrf->name); | |
2086 | if (ospf) { | |
6895b354 PG |
2087 | if (ospf->name && strmatch(vrf->name, VRF_DEFAULT_NAME)) { |
2088 | XFREE(MTYPE_OSPF_TOP, ospf->name); | |
2089 | ospf->name = NULL; | |
2090 | } | |
b5a8894d CS |
2091 | old_vrf_id = ospf->vrf_id; |
2092 | /* We have instance configured, link to VRF and make it "up". */ | |
2093 | ospf_vrf_link(ospf, vrf); | |
2094 | if (IS_DEBUG_OSPF_EVENT) | |
996c9314 LB |
2095 | zlog_debug( |
2096 | "%s: ospf linked to vrf %s vrf_id %u (old id %u)", | |
2097 | __PRETTY_FUNCTION__, vrf->name, ospf->vrf_id, | |
2098 | old_vrf_id); | |
b5a8894d CS |
2099 | |
2100 | if (old_vrf_id != ospf->vrf_id) { | |
0cf6db21 | 2101 | frr_with_privs(&ospfd_privs) { |
6bb30c2c DL |
2102 | /* stop zebra redist to us for old vrf */ |
2103 | zclient_send_dereg_requests(zclient, | |
2104 | old_vrf_id); | |
3d9f7302 | 2105 | |
6bb30c2c | 2106 | ospf_set_redist_vrf_bitmaps(ospf); |
3d9f7302 | 2107 | |
6bb30c2c DL |
2108 | /* start zebra redist to us for new vrf */ |
2109 | ospf_zebra_vrf_register(ospf); | |
313d7993 | 2110 | |
6bb30c2c DL |
2111 | ret = ospf_sock_init(ospf); |
2112 | } | |
3c0eb8fa PG |
2113 | if (ret < 0 || ospf->fd <= 0) |
2114 | return 0; | |
996c9314 LB |
2115 | thread_add_read(master, ospf_read, ospf, ospf->fd, |
2116 | &ospf->t_read); | |
b5a8894d CS |
2117 | ospf->oi_running = 1; |
2118 | ospf_router_id_update(ospf); | |
2119 | } | |
2120 | } | |
2121 | ||
2122 | return 0; | |
2123 | } | |
2124 | ||
2125 | /* Disable OSPF VRF instance */ | |
2126 | static int ospf_vrf_disable(struct vrf *vrf) | |
2127 | { | |
2128 | struct ospf *ospf = NULL; | |
2129 | vrf_id_t old_vrf_id = VRF_UNKNOWN; | |
2130 | ||
2131 | if (vrf->vrf_id == VRF_DEFAULT) | |
2132 | return 0; | |
2133 | ||
2134 | if (IS_DEBUG_OSPF_EVENT) | |
996c9314 LB |
2135 | zlog_debug("%s: VRF %s id %d disabled.", __PRETTY_FUNCTION__, |
2136 | vrf->name, vrf->vrf_id); | |
b5a8894d CS |
2137 | |
2138 | ospf = ospf_lookup_by_name(vrf->name); | |
2139 | if (ospf) { | |
2140 | old_vrf_id = ospf->vrf_id; | |
2141 | ||
2142 | /* We have instance configured, unlink | |
2143 | * from VRF and make it "down". | |
2144 | */ | |
2145 | ospf_vrf_unlink(ospf, vrf); | |
2146 | ospf->oi_running = 0; | |
2147 | if (IS_DEBUG_OSPF_EVENT) | |
2148 | zlog_debug("%s: ospf old_vrf_id %d unlinked", | |
996c9314 | 2149 | __PRETTY_FUNCTION__, old_vrf_id); |
3c0eb8fa PG |
2150 | thread_cancel(ospf->t_read); |
2151 | close(ospf->fd); | |
2152 | ospf->fd = -1; | |
b5a8894d CS |
2153 | } |
2154 | ||
2155 | /* Note: This is a callback, the VRF will be deleted by the caller. */ | |
2156 | return 0; | |
2157 | } | |
2158 | ||
2159 | void ospf_vrf_init(void) | |
2160 | { | |
996c9314 | 2161 | vrf_init(ospf_vrf_new, ospf_vrf_enable, ospf_vrf_disable, |
b5c056fa | 2162 | ospf_vrf_delete, ospf_vrf_enable); |
b5a8894d CS |
2163 | } |
2164 | ||
2165 | void ospf_vrf_terminate(void) | |
2166 | { | |
2167 | vrf_terminate(); | |
2168 | } | |
2169 | ||
2170 | const char *ospf_vrf_id_to_name(vrf_id_t vrf_id) | |
2171 | { | |
2172 | struct vrf *vrf = vrf_lookup_by_id(vrf_id); | |
2173 | ||
2174 | return vrf ? vrf->name : "NIL"; | |
2175 | } | |
88b6b28e DS |
2176 | |
2177 | const char *ospf_get_name(const struct ospf *ospf) | |
2178 | { | |
2179 | if (ospf->name) | |
2180 | return ospf->name; | |
2181 | else | |
2182 | return VRF_DEFAULT_NAME; | |
2183 | } |