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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 | ||
d62a17ae | 296 | QOBJ_REG(new, ospf); |
ae19c240 | 297 | |
3c0eb8fa PG |
298 | new->fd = -1; |
299 | if ((ospf_sock_init(new)) < 0) { | |
300 | if (new->vrf_id != VRF_UNKNOWN) | |
ade6974d | 301 | flog_err( |
450971aa | 302 | EC_LIB_SOCKET, |
ade6974d QY |
303 | "%s: ospf_sock_init is unable to open a socket", |
304 | __func__); | |
3c0eb8fa PG |
305 | return new; |
306 | } | |
307 | thread_add_read(master, ospf_read, new, new->fd, &new->t_read); | |
308 | ||
d62a17ae | 309 | return new; |
718e3744 | 310 | } |
311 | ||
d7c0a89a | 312 | struct ospf *ospf_lookup_instance(unsigned short instance) |
7c8ff89e | 313 | { |
d62a17ae | 314 | struct ospf *ospf; |
315 | struct listnode *node, *nnode; | |
7c8ff89e | 316 | |
d62a17ae | 317 | if (listcount(om->ospf) == 0) |
318 | return NULL; | |
7c8ff89e | 319 | |
d62a17ae | 320 | for (ALL_LIST_ELEMENTS(om->ospf, node, nnode, ospf)) |
321 | if ((ospf->instance == 0 && instance == 0) | |
322 | || (ospf->instance && instance | |
323 | && ospf->instance == instance)) | |
324 | return ospf; | |
7c8ff89e | 325 | |
d62a17ae | 326 | return NULL; |
7c8ff89e DS |
327 | } |
328 | ||
d62a17ae | 329 | static int ospf_is_ready(struct ospf *ospf) |
52c62ab8 | 330 | { |
d62a17ae | 331 | /* OSPF must be on and Router-ID must be configured. */ |
332 | if (!ospf || ospf->router_id.s_addr == 0) | |
333 | return 0; | |
334 | ||
335 | return 1; | |
52c62ab8 JAG |
336 | } |
337 | ||
d62a17ae | 338 | static void ospf_add(struct ospf *ospf) |
020709f9 | 339 | { |
d62a17ae | 340 | listnode_add(om->ospf, ospf); |
020709f9 | 341 | } |
718e3744 | 342 | |
d62a17ae | 343 | static void ospf_delete(struct ospf *ospf) |
020709f9 | 344 | { |
d62a17ae | 345 | listnode_delete(om->ospf, ospf); |
020709f9 | 346 | } |
68980084 | 347 | |
d7c0a89a | 348 | struct ospf *ospf_lookup_by_inst_name(unsigned short instance, const char *name) |
b5a8894d CS |
349 | { |
350 | struct ospf *ospf = NULL; | |
351 | struct listnode *node, *nnode; | |
352 | ||
6895b354 PG |
353 | if (name == NULL || strmatch(name, VRF_DEFAULT_NAME)) |
354 | return ospf_lookup_by_vrf_id(VRF_DEFAULT); | |
355 | ||
b5a8894d | 356 | for (ALL_LIST_ELEMENTS(om->ospf, node, nnode, ospf)) { |
996c9314 LB |
357 | if ((ospf->instance == instance) |
358 | && ((ospf->name == NULL && name == NULL) | |
359 | || (ospf->name && name | |
360 | && strcmp(ospf->name, name) == 0))) | |
b5a8894d CS |
361 | return ospf; |
362 | } | |
363 | return NULL; | |
364 | } | |
365 | ||
c572fbfe | 366 | struct ospf *ospf_get(unsigned short instance, const char *name, bool *created) |
020709f9 | 367 | { |
d62a17ae | 368 | struct ospf *ospf; |
020709f9 | 369 | |
b5a8894d CS |
370 | /* vrf name provided call inst and name based api |
371 | * in case of no name pass default ospf instance */ | |
372 | if (name) | |
373 | ospf = ospf_lookup_by_inst_name(instance, name); | |
374 | else | |
375 | ospf = ospf_lookup_by_vrf_id(VRF_DEFAULT); | |
376 | ||
c572fbfe | 377 | *created = (ospf == NULL); |
d62a17ae | 378 | if (ospf == NULL) { |
b5a8894d | 379 | ospf = ospf_new(instance, name); |
d62a17ae | 380 | ospf_add(ospf); |
7c8ff89e | 381 | |
d62a17ae | 382 | if (ospf->router_id_static.s_addr == 0) |
383 | ospf_router_id_update(ospf); | |
7c8ff89e | 384 | |
d62a17ae | 385 | ospf_opaque_type11_lsa_init(ospf); |
386 | } | |
7c8ff89e | 387 | |
d62a17ae | 388 | return ospf; |
7c8ff89e DS |
389 | } |
390 | ||
c572fbfe | 391 | struct ospf *ospf_get_instance(unsigned short instance, bool *created) |
7c8ff89e | 392 | { |
d62a17ae | 393 | struct ospf *ospf; |
7c8ff89e | 394 | |
d62a17ae | 395 | ospf = ospf_lookup_instance(instance); |
c572fbfe | 396 | *created = (ospf == NULL); |
d62a17ae | 397 | if (ospf == NULL) { |
b5a8894d | 398 | ospf = ospf_new(instance, NULL /* VRF_DEFAULT*/); |
d62a17ae | 399 | ospf_add(ospf); |
020709f9 | 400 | |
8908161f | 401 | if (ospf->router_id_static.s_addr == 0) |
d62a17ae | 402 | ospf_router_id_update(ospf); |
718e3744 | 403 | |
d62a17ae | 404 | ospf_opaque_type11_lsa_init(ospf); |
405 | } | |
68980084 | 406 | |
d62a17ae | 407 | return ospf; |
718e3744 | 408 | } |
6b0655a2 | 409 | |
b5a8894d CS |
410 | struct ospf *ospf_lookup_by_vrf_id(vrf_id_t vrf_id) |
411 | { | |
412 | struct vrf *vrf = NULL; | |
413 | ||
414 | vrf = vrf_lookup_by_id(vrf_id); | |
415 | if (!vrf) | |
416 | return NULL; | |
417 | return (vrf->info) ? (struct ospf *)vrf->info : NULL; | |
b5a8894d CS |
418 | } |
419 | ||
43b8d1d8 CS |
420 | /* It should only be used when processing incoming info update from zebra. |
421 | * Other situations, it is not sufficient to lookup the ospf instance by | |
422 | * vrf_name only without using the instance number. | |
423 | */ | |
424 | static struct ospf *ospf_lookup_by_name(const char *vrf_name) | |
b5a8894d CS |
425 | { |
426 | struct ospf *ospf = NULL; | |
427 | struct listnode *node, *nnode; | |
428 | ||
429 | for (ALL_LIST_ELEMENTS(om->ospf, node, nnode, ospf)) | |
43b8d1d8 | 430 | if ((ospf->name == NULL && vrf_name == NULL) |
996c9314 LB |
431 | || (ospf->name && vrf_name |
432 | && strcmp(ospf->name, vrf_name) == 0)) | |
b5a8894d CS |
433 | return ospf; |
434 | return NULL; | |
435 | } | |
436 | ||
c9c93d50 | 437 | /* Handle the second half of deferred shutdown. This is called either |
438 | * from the deferred-shutdown timer thread, or directly through | |
439 | * ospf_deferred_shutdown_check. | |
88d6cf37 | 440 | * |
441 | * Function is to cleanup G-R state, if required then call ospf_finish_final | |
442 | * to complete shutdown of this ospf instance. Possibly exit if the | |
443 | * whole process is being shutdown and this was the last OSPF instance. | |
444 | */ | |
d62a17ae | 445 | static void ospf_deferred_shutdown_finish(struct ospf *ospf) |
446 | { | |
447 | ospf->stub_router_shutdown_time = OSPF_STUB_ROUTER_UNCONFIGURED; | |
448 | OSPF_TIMER_OFF(ospf->t_deferred_shutdown); | |
449 | ||
450 | ospf_finish_final(ospf); | |
451 | ||
452 | /* *ospf is now invalid */ | |
88d6cf37 | 453 | |
d62a17ae | 454 | /* ospfd being shut-down? If so, was this the last ospf instance? */ |
455 | if (CHECK_FLAG(om->options, OSPF_MASTER_SHUTDOWN) | |
456 | && (listcount(om->ospf) == 0)) { | |
457 | exit(0); | |
458 | } | |
459 | ||
460 | return; | |
88d6cf37 | 461 | } |
462 | ||
463 | /* Timer thread for G-R */ | |
d62a17ae | 464 | static int ospf_deferred_shutdown_timer(struct thread *t) |
88d6cf37 | 465 | { |
d62a17ae | 466 | struct ospf *ospf = THREAD_ARG(t); |
467 | ||
468 | ospf_deferred_shutdown_finish(ospf); | |
469 | ||
470 | return 0; | |
88d6cf37 | 471 | } |
472 | ||
c9c93d50 | 473 | /* Check whether deferred-shutdown must be scheduled, otherwise call |
88d6cf37 | 474 | * down directly into second-half of instance shutdown. |
475 | */ | |
d62a17ae | 476 | static void ospf_deferred_shutdown_check(struct ospf *ospf) |
477 | { | |
478 | unsigned long timeout; | |
479 | struct listnode *ln; | |
480 | struct ospf_area *area; | |
481 | ||
482 | /* deferred shutdown already running? */ | |
483 | if (ospf->t_deferred_shutdown) | |
484 | return; | |
485 | ||
486 | /* Should we try push out max-metric LSAs? */ | |
487 | if (ospf->stub_router_shutdown_time != OSPF_STUB_ROUTER_UNCONFIGURED) { | |
488 | for (ALL_LIST_ELEMENTS_RO(ospf->areas, ln, area)) { | |
489 | SET_FLAG(area->stub_router_state, | |
490 | OSPF_AREA_ADMIN_STUB_ROUTED); | |
491 | ||
492 | if (!CHECK_FLAG(area->stub_router_state, | |
493 | OSPF_AREA_IS_STUB_ROUTED)) | |
494 | ospf_router_lsa_update_area(area); | |
495 | } | |
496 | timeout = ospf->stub_router_shutdown_time; | |
497 | } else { | |
498 | /* No timer needed */ | |
499 | ospf_deferred_shutdown_finish(ospf); | |
500 | return; | |
501 | } | |
502 | ||
503 | OSPF_TIMER_ON(ospf->t_deferred_shutdown, ospf_deferred_shutdown_timer, | |
504 | timeout); | |
505 | return; | |
88d6cf37 | 506 | } |
6b0655a2 | 507 | |
88d6cf37 | 508 | /* Shut down the entire process */ |
d62a17ae | 509 | void ospf_terminate(void) |
510 | { | |
511 | struct ospf *ospf; | |
512 | struct listnode *node, *nnode; | |
513 | ||
514 | /* shutdown already in progress */ | |
515 | if (CHECK_FLAG(om->options, OSPF_MASTER_SHUTDOWN)) | |
516 | return; | |
517 | ||
518 | SET_FLAG(om->options, OSPF_MASTER_SHUTDOWN); | |
519 | ||
520 | /* exit immediately if OSPF not actually running */ | |
521 | if (listcount(om->ospf) == 0) | |
522 | exit(0); | |
523 | ||
524 | bfd_gbl_exit(); | |
525 | for (ALL_LIST_ELEMENTS(om->ospf, node, nnode, ospf)) | |
526 | ospf_finish(ospf); | |
527 | ||
ded42248 | 528 | /* Cleanup route maps */ |
ded42248 CS |
529 | route_map_finish(); |
530 | ||
531 | /* reverse prefix_list_init */ | |
532 | prefix_list_add_hook(NULL); | |
533 | prefix_list_delete_hook(NULL); | |
534 | prefix_list_reset(); | |
535 | ||
536 | /* Cleanup vrf info */ | |
537 | ospf_vrf_terminate(); | |
538 | ||
d62a17ae | 539 | /* Deliberately go back up, hopefully to thread scheduler, as |
540 | * One or more ospf_finish()'s may have deferred shutdown to a timer | |
541 | * thread | |
542 | */ | |
543 | zclient_stop(zclient); | |
544 | zclient_free(zclient); | |
8879bd22 RW |
545 | |
546 | frr_fini(); | |
d62a17ae | 547 | } |
548 | ||
549 | void ospf_finish(struct ospf *ospf) | |
550 | { | |
551 | /* let deferred shutdown decide */ | |
552 | ospf_deferred_shutdown_check(ospf); | |
553 | ||
554 | /* if ospf_deferred_shutdown returns, then ospf_finish_final is | |
555 | * deferred to expiry of G-S timer thread. Return back up, hopefully | |
556 | * to thread scheduler. | |
557 | */ | |
558 | return; | |
88d6cf37 | 559 | } |
560 | ||
561 | /* Final cleanup of ospf instance */ | |
d62a17ae | 562 | static void ospf_finish_final(struct ospf *ospf) |
718e3744 | 563 | { |
f4e14fdb | 564 | struct vrf *vrf = vrf_lookup_by_id(ospf->vrf_id); |
d62a17ae | 565 | struct route_node *rn; |
566 | struct ospf_nbr_nbma *nbr_nbma; | |
567 | struct ospf_lsa *lsa; | |
568 | struct interface *ifp; | |
569 | struct ospf_interface *oi; | |
570 | struct ospf_area *area; | |
571 | struct ospf_vl_data *vl_data; | |
572 | struct listnode *node, *nnode; | |
573 | int i; | |
7c8ff89e | 574 | |
d62a17ae | 575 | QOBJ_UNREG(ospf); |
7c8ff89e | 576 | |
d62a17ae | 577 | ospf_opaque_type11_lsa_term(ospf); |
953cde65 | 578 | |
bcf4475e OD |
579 | ospf_opaque_finish(); |
580 | ||
046460a1 | 581 | ospf_flush_self_originated_lsas_now(ospf); |
953cde65 | 582 | |
d62a17ae | 583 | /* Unregister redistribution */ |
584 | for (i = 0; i < ZEBRA_ROUTE_MAX; i++) { | |
585 | struct list *red_list; | |
586 | struct ospf_redist *red; | |
718e3744 | 587 | |
d62a17ae | 588 | red_list = ospf->redist[i]; |
589 | if (!red_list) | |
590 | continue; | |
718e3744 | 591 | |
1d753551 | 592 | for (ALL_LIST_ELEMENTS(red_list, node, nnode, red)) { |
d62a17ae | 593 | ospf_redistribute_unset(ospf, i, red->instance); |
1d753551 DS |
594 | ospf_redist_del(ospf, i, red->instance); |
595 | } | |
d62a17ae | 596 | } |
d5eac1e0 | 597 | ospf_redistribute_default_set(ospf, DEFAULT_ORIGINATE_NONE, 0, 0); |
718e3744 | 598 | |
d62a17ae | 599 | for (ALL_LIST_ELEMENTS(ospf->areas, node, nnode, area)) |
600 | ospf_remove_vls_through_area(ospf, area); | |
718e3744 | 601 | |
d62a17ae | 602 | for (ALL_LIST_ELEMENTS(ospf->vlinks, node, nnode, vl_data)) |
603 | ospf_vl_delete(ospf, vl_data); | |
718e3744 | 604 | |
6a154c88 | 605 | list_delete(&ospf->vlinks); |
718e3744 | 606 | |
d62a17ae | 607 | /* Remove any ospf interface config params */ |
451fda4f | 608 | FOR_ALL_INTERFACES (vrf, ifp) { |
d62a17ae | 609 | struct ospf_if_params *params; |
718e3744 | 610 | |
d62a17ae | 611 | params = IF_DEF_PARAMS(ifp); |
612 | if (OSPF_IF_PARAM_CONFIGURED(params, if_area)) | |
613 | UNSET_IF_PARAM(params, if_area); | |
718e3744 | 614 | } |
718e3744 | 615 | |
d62a17ae | 616 | /* Reset interface. */ |
617 | for (ALL_LIST_ELEMENTS(ospf->oiflist, node, nnode, oi)) | |
618 | ospf_if_free(oi); | |
6a154c88 | 619 | list_delete(&ospf->oiflist); |
c32eba04 | 620 | ospf->oi_running = 0; |
718e3744 | 621 | |
b5a8894d CS |
622 | /* De-Register VRF */ |
623 | ospf_zebra_vrf_deregister(ospf); | |
624 | ||
d62a17ae | 625 | /* Clear static neighbors */ |
626 | for (rn = route_top(ospf->nbr_nbma); rn; rn = route_next(rn)) | |
627 | if ((nbr_nbma = rn->info)) { | |
628 | OSPF_POLL_TIMER_OFF(nbr_nbma->t_poll); | |
718e3744 | 629 | |
d62a17ae | 630 | if (nbr_nbma->nbr) { |
631 | nbr_nbma->nbr->nbr_nbma = NULL; | |
632 | nbr_nbma->nbr = NULL; | |
633 | } | |
634 | ||
635 | if (nbr_nbma->oi) { | |
636 | listnode_delete(nbr_nbma->oi->nbr_nbma, | |
637 | nbr_nbma); | |
638 | nbr_nbma->oi = NULL; | |
639 | } | |
640 | ||
641 | XFREE(MTYPE_OSPF_NEIGHBOR_STATIC, nbr_nbma); | |
642 | } | |
643 | ||
644 | route_table_finish(ospf->nbr_nbma); | |
645 | ||
646 | /* Clear networks and Areas. */ | |
647 | for (rn = route_top(ospf->networks); rn; rn = route_next(rn)) { | |
648 | struct ospf_network *network; | |
649 | ||
650 | if ((network = rn->info) != NULL) { | |
651 | ospf_network_free(ospf, network); | |
652 | rn->info = NULL; | |
653 | route_unlock_node(rn); | |
654 | } | |
91e6a0e5 | 655 | } |
7f586094 | 656 | route_table_finish(ospf->networks); |
718e3744 | 657 | |
d62a17ae | 658 | for (ALL_LIST_ELEMENTS(ospf->areas, node, nnode, area)) { |
659 | listnode_delete(ospf->areas, area); | |
660 | ospf_area_free(area); | |
661 | } | |
718e3744 | 662 | |
d62a17ae | 663 | /* Cancel all timers. */ |
c32eba04 CS |
664 | OSPF_TIMER_OFF(ospf->t_read); |
665 | OSPF_TIMER_OFF(ospf->t_write); | |
d62a17ae | 666 | OSPF_TIMER_OFF(ospf->t_spf_calc); |
667 | OSPF_TIMER_OFF(ospf->t_ase_calc); | |
668 | OSPF_TIMER_OFF(ospf->t_maxage); | |
669 | OSPF_TIMER_OFF(ospf->t_maxage_walker); | |
670 | OSPF_TIMER_OFF(ospf->t_abr_task); | |
671 | OSPF_TIMER_OFF(ospf->t_asbr_check); | |
672 | OSPF_TIMER_OFF(ospf->t_distribute_update); | |
673 | OSPF_TIMER_OFF(ospf->t_lsa_refresher); | |
d62a17ae | 674 | OSPF_TIMER_OFF(ospf->t_opaque_lsa_self); |
45a43856 | 675 | OSPF_TIMER_OFF(ospf->t_sr_update); |
d62a17ae | 676 | |
996c9314 | 677 | LSDB_LOOP (OPAQUE_AS_LSDB(ospf), rn, lsa) |
044506e7 | 678 | ospf_discard_from_db(ospf, ospf->lsdb, lsa); |
996c9314 | 679 | LSDB_LOOP (EXTERNAL_LSDB(ospf), rn, lsa) |
044506e7 | 680 | ospf_discard_from_db(ospf, ospf->lsdb, lsa); |
d62a17ae | 681 | |
682 | ospf_lsdb_delete_all(ospf->lsdb); | |
683 | ospf_lsdb_free(ospf->lsdb); | |
684 | ||
685 | for (rn = route_top(ospf->maxage_lsa); rn; rn = route_next(rn)) { | |
d62a17ae | 686 | if ((lsa = rn->info) != NULL) { |
687 | ospf_lsa_unlock(&lsa); | |
688 | rn->info = NULL; | |
689 | } | |
690 | route_unlock_node(rn); | |
691 | } | |
692 | route_table_finish(ospf->maxage_lsa); | |
693 | ||
694 | if (ospf->old_table) | |
695 | ospf_route_table_free(ospf->old_table); | |
696 | if (ospf->new_table) { | |
b5a8894d | 697 | ospf_route_delete(ospf, ospf->new_table); |
d62a17ae | 698 | ospf_route_table_free(ospf->new_table); |
699 | } | |
700 | if (ospf->old_rtrs) | |
701 | ospf_rtrs_free(ospf->old_rtrs); | |
702 | if (ospf->new_rtrs) | |
703 | ospf_rtrs_free(ospf->new_rtrs); | |
704 | if (ospf->new_external_route) { | |
b5a8894d | 705 | ospf_route_delete(ospf, ospf->new_external_route); |
d62a17ae | 706 | ospf_route_table_free(ospf->new_external_route); |
707 | } | |
708 | if (ospf->old_external_route) { | |
b5a8894d | 709 | ospf_route_delete(ospf, ospf->old_external_route); |
d62a17ae | 710 | ospf_route_table_free(ospf->old_external_route); |
711 | } | |
712 | if (ospf->external_lsas) { | |
713 | ospf_ase_external_lsas_finish(ospf->external_lsas); | |
714 | } | |
718e3744 | 715 | |
d62a17ae | 716 | for (i = ZEBRA_ROUTE_SYSTEM; i <= ZEBRA_ROUTE_MAX; i++) { |
717 | struct list *ext_list; | |
d62a17ae | 718 | struct ospf_external *ext; |
719 | ||
de1ac5fd | 720 | ext_list = ospf->external[i]; |
d62a17ae | 721 | if (!ext_list) |
722 | continue; | |
723 | ||
76fdc7f4 | 724 | for (ALL_LIST_ELEMENTS(ext_list, node, nnode, ext)) { |
d62a17ae | 725 | if (ext->external_info) |
726 | for (rn = route_top(ext->external_info); rn; | |
727 | rn = route_next(rn)) { | |
728 | if (rn->info == NULL) | |
729 | continue; | |
730 | ||
731 | XFREE(MTYPE_OSPF_EXTERNAL_INFO, | |
732 | rn->info); | |
733 | rn->info = NULL; | |
734 | route_unlock_node(rn); | |
735 | } | |
1d753551 DS |
736 | |
737 | ospf_external_del(ospf, i, ext->instance); | |
d62a17ae | 738 | } |
739 | } | |
718e3744 | 740 | |
d62a17ae | 741 | ospf_distance_reset(ospf); |
742 | route_table_finish(ospf->distance_table); | |
7c8ff89e | 743 | |
c32eba04 CS |
744 | list_delete(&ospf->areas); |
745 | list_delete(&ospf->oi_write_q); | |
746 | ||
747 | close(ospf->fd); | |
748 | stream_free(ospf->ibuf); | |
749 | ospf->fd = -1; | |
d62a17ae | 750 | ospf_delete(ospf); |
7c8ff89e | 751 | |
b5a8894d CS |
752 | if (ospf->name) { |
753 | vrf = vrf_lookup_by_name(ospf->name); | |
754 | if (vrf) | |
755 | ospf_vrf_unlink(ospf, vrf); | |
756 | XFREE(MTYPE_OSPF_TOP, ospf->name); | |
757 | } else { | |
758 | vrf = vrf_lookup_by_id(VRF_DEFAULT); | |
759 | if (vrf) | |
760 | ospf_vrf_unlink(ospf, vrf); | |
761 | } | |
762 | ||
d62a17ae | 763 | XFREE(MTYPE_OSPF_TOP, ospf); |
718e3744 | 764 | } |
765 | ||
6b0655a2 | 766 | |
718e3744 | 767 | /* allocate new OSPF Area object */ |
d62a17ae | 768 | static struct ospf_area *ospf_area_new(struct ospf *ospf, |
769 | struct in_addr area_id) | |
718e3744 | 770 | { |
d62a17ae | 771 | struct ospf_area *new; |
718e3744 | 772 | |
d62a17ae | 773 | /* Allocate new config_network. */ |
774 | new = XCALLOC(MTYPE_OSPF_AREA, sizeof(struct ospf_area)); | |
718e3744 | 775 | |
d62a17ae | 776 | new->ospf = ospf; |
718e3744 | 777 | |
d62a17ae | 778 | new->area_id = area_id; |
779 | new->area_id_fmt = OSPF_AREA_ID_FMT_DOTTEDQUAD; | |
718e3744 | 780 | |
d62a17ae | 781 | new->external_routing = OSPF_AREA_DEFAULT; |
782 | new->default_cost = 1; | |
783 | new->auth_type = OSPF_AUTH_NULL; | |
718e3744 | 784 | |
d62a17ae | 785 | /* New LSDB init. */ |
786 | new->lsdb = ospf_lsdb_new(); | |
718e3744 | 787 | |
d62a17ae | 788 | /* Self-originated LSAs initialize. */ |
789 | new->router_lsa_self = NULL; | |
718e3744 | 790 | |
d62a17ae | 791 | ospf_opaque_type10_lsa_init(new); |
718e3744 | 792 | |
d62a17ae | 793 | new->oiflist = list_new(); |
794 | new->ranges = route_table_init(); | |
718e3744 | 795 | |
d62a17ae | 796 | if (area_id.s_addr == OSPF_AREA_BACKBONE) |
797 | ospf->backbone = new; | |
798 | ||
799 | return new; | |
718e3744 | 800 | } |
801 | ||
d62a17ae | 802 | static void ospf_area_free(struct ospf_area *area) |
718e3744 | 803 | { |
d62a17ae | 804 | struct route_node *rn; |
805 | struct ospf_lsa *lsa; | |
806 | ||
7f7f77a0 DS |
807 | ospf_opaque_type10_lsa_term(area); |
808 | ||
d62a17ae | 809 | /* Free LSDBs. */ |
996c9314 | 810 | LSDB_LOOP (ROUTER_LSDB(area), rn, lsa) |
044506e7 | 811 | ospf_discard_from_db(area->ospf, area->lsdb, lsa); |
996c9314 | 812 | LSDB_LOOP (NETWORK_LSDB(area), rn, lsa) |
044506e7 | 813 | ospf_discard_from_db(area->ospf, area->lsdb, lsa); |
996c9314 | 814 | LSDB_LOOP (SUMMARY_LSDB(area), rn, lsa) |
044506e7 | 815 | ospf_discard_from_db(area->ospf, area->lsdb, lsa); |
996c9314 | 816 | LSDB_LOOP (ASBR_SUMMARY_LSDB(area), rn, lsa) |
044506e7 | 817 | ospf_discard_from_db(area->ospf, area->lsdb, lsa); |
68980084 | 818 | |
996c9314 | 819 | LSDB_LOOP (NSSA_LSDB(area), rn, lsa) |
044506e7 | 820 | ospf_discard_from_db(area->ospf, area->lsdb, lsa); |
996c9314 | 821 | LSDB_LOOP (OPAQUE_AREA_LSDB(area), rn, lsa) |
044506e7 | 822 | ospf_discard_from_db(area->ospf, area->lsdb, lsa); |
996c9314 | 823 | LSDB_LOOP (OPAQUE_LINK_LSDB(area), rn, lsa) |
044506e7 | 824 | ospf_discard_from_db(area->ospf, area->lsdb, lsa); |
718e3744 | 825 | |
d62a17ae | 826 | ospf_lsdb_delete_all(area->lsdb); |
827 | ospf_lsdb_free(area->lsdb); | |
718e3744 | 828 | |
d62a17ae | 829 | ospf_lsa_unlock(&area->router_lsa_self); |
718e3744 | 830 | |
d62a17ae | 831 | route_table_finish(area->ranges); |
6a154c88 | 832 | list_delete(&area->oiflist); |
718e3744 | 833 | |
d62a17ae | 834 | if (EXPORT_NAME(area)) |
835 | free(EXPORT_NAME(area)); | |
718e3744 | 836 | |
d62a17ae | 837 | if (IMPORT_NAME(area)) |
838 | free(IMPORT_NAME(area)); | |
718e3744 | 839 | |
d62a17ae | 840 | /* Cancel timer. */ |
841 | OSPF_TIMER_OFF(area->t_stub_router); | |
842 | OSPF_TIMER_OFF(area->t_opaque_lsa_self); | |
718e3744 | 843 | |
d62a17ae | 844 | if (OSPF_IS_AREA_BACKBONE(area)) |
845 | area->ospf->backbone = NULL; | |
846 | ||
847 | XFREE(MTYPE_OSPF_AREA, area); | |
718e3744 | 848 | } |
849 | ||
d62a17ae | 850 | void ospf_area_check_free(struct ospf *ospf, struct in_addr area_id) |
718e3744 | 851 | { |
d62a17ae | 852 | struct ospf_area *area; |
718e3744 | 853 | |
d62a17ae | 854 | area = ospf_area_lookup_by_area_id(ospf, area_id); |
855 | if (area && listcount(area->oiflist) == 0 && area->ranges->top == NULL | |
19ce7d5e | 856 | && !ospf_vl_count(ospf, area) |
d62a17ae | 857 | && area->shortcut_configured == OSPF_SHORTCUT_DEFAULT |
858 | && area->external_routing == OSPF_AREA_DEFAULT | |
859 | && area->no_summary == 0 && area->default_cost == 1 | |
860 | && EXPORT_NAME(area) == NULL && IMPORT_NAME(area) == NULL | |
861 | && area->auth_type == OSPF_AUTH_NULL) { | |
862 | listnode_delete(ospf->areas, area); | |
863 | ospf_area_free(area); | |
864 | } | |
718e3744 | 865 | } |
866 | ||
d62a17ae | 867 | struct ospf_area *ospf_area_get(struct ospf *ospf, struct in_addr area_id) |
718e3744 | 868 | { |
d62a17ae | 869 | struct ospf_area *area; |
870 | ||
871 | area = ospf_area_lookup_by_area_id(ospf, area_id); | |
872 | if (!area) { | |
873 | area = ospf_area_new(ospf, area_id); | |
874 | listnode_add_sort(ospf->areas, area); | |
875 | ospf_check_abr_status(ospf); | |
876 | if (ospf->stub_router_admin_set | |
877 | == OSPF_STUB_ROUTER_ADMINISTRATIVE_SET) { | |
878 | SET_FLAG(area->stub_router_state, | |
879 | OSPF_AREA_ADMIN_STUB_ROUTED); | |
880 | } | |
881 | } | |
718e3744 | 882 | |
d62a17ae | 883 | return area; |
718e3744 | 884 | } |
885 | ||
d62a17ae | 886 | struct ospf_area *ospf_area_lookup_by_area_id(struct ospf *ospf, |
887 | struct in_addr area_id) | |
718e3744 | 888 | { |
d62a17ae | 889 | struct ospf_area *area; |
890 | struct listnode *node; | |
718e3744 | 891 | |
d62a17ae | 892 | for (ALL_LIST_ELEMENTS_RO(ospf->areas, node, area)) |
893 | if (IPV4_ADDR_SAME(&area->area_id, &area_id)) | |
894 | return area; | |
718e3744 | 895 | |
d62a17ae | 896 | return NULL; |
718e3744 | 897 | } |
898 | ||
d62a17ae | 899 | void ospf_area_add_if(struct ospf_area *area, struct ospf_interface *oi) |
718e3744 | 900 | { |
d62a17ae | 901 | listnode_add(area->oiflist, oi); |
718e3744 | 902 | } |
903 | ||
d62a17ae | 904 | void ospf_area_del_if(struct ospf_area *area, struct ospf_interface *oi) |
718e3744 | 905 | { |
d62a17ae | 906 | listnode_delete(area->oiflist, oi); |
718e3744 | 907 | } |
908 | ||
52c62ab8 | 909 | |
d62a17ae | 910 | static void add_ospf_interface(struct connected *co, struct ospf_area *area) |
953cde65 | 911 | { |
d62a17ae | 912 | struct ospf_interface *oi; |
953cde65 | 913 | |
d62a17ae | 914 | oi = ospf_if_new(area->ospf, co->ifp, co->address); |
915 | oi->connected = co; | |
953cde65 | 916 | |
d62a17ae | 917 | oi->area = area; |
953cde65 | 918 | |
d62a17ae | 919 | oi->params = ospf_lookup_if_params(co->ifp, oi->address->u.prefix4); |
920 | oi->output_cost = ospf_if_get_output_cost(oi); | |
953cde65 | 921 | |
d62a17ae | 922 | /* Relate ospf interface to ospf instance. */ |
923 | oi->ospf = area->ospf; | |
953cde65 | 924 | |
d62a17ae | 925 | /* update network type as interface flag */ |
926 | /* If network type is specified previously, | |
927 | skip network type setting. */ | |
928 | oi->type = IF_DEF_PARAMS(co->ifp)->type; | |
953cde65 | 929 | |
d62a17ae | 930 | /* Add pseudo neighbor. */ |
931 | ospf_nbr_self_reset(oi, oi->ospf->router_id); | |
953cde65 | 932 | |
d62a17ae | 933 | ospf_area_add_if(oi->area, oi); |
52c62ab8 | 934 | |
d62a17ae | 935 | /* |
936 | * if router_id is not configured, dont bring up | |
937 | * interfaces. | |
938 | * ospf_router_id_update() will call ospf_if_update | |
939 | * whenever r-id is configured instead. | |
940 | */ | |
941 | if ((area->ospf->router_id.s_addr != 0) && if_is_operative(co->ifp)) | |
942 | ospf_if_up(oi); | |
953cde65 JT |
943 | } |
944 | ||
945 | static void update_redistributed(struct ospf *ospf, int add_to_ospf) | |
946 | { | |
d62a17ae | 947 | struct route_node *rn; |
948 | struct external_info *ei; | |
949 | struct ospf_external *ext; | |
950 | ||
de1ac5fd CS |
951 | if (ospf_is_type_redistributed(ospf, ZEBRA_ROUTE_CONNECT, 0)) { |
952 | ext = ospf_external_lookup(ospf, ZEBRA_ROUTE_CONNECT, 0); | |
953 | if ((ext) && EXTERNAL_INFO(ext)) { | |
d62a17ae | 954 | for (rn = route_top(EXTERNAL_INFO(ext)); rn; |
955 | rn = route_next(rn)) { | |
de1ac5fd CS |
956 | ei = rn->info; |
957 | if (ei == NULL) | |
958 | continue; | |
959 | ||
960 | if (add_to_ospf) { | |
996c9314 LB |
961 | if (ospf_external_info_find_lsa(ospf, |
962 | &ei->p)) | |
de1ac5fd CS |
963 | if (!ospf_distribute_check_connected( |
964 | ospf, ei)) | |
965 | ospf_external_lsa_flush( | |
996c9314 | 966 | ospf, ei->type, |
de1ac5fd CS |
967 | &ei->p, |
968 | ei->ifindex /*, ei->nexthop */); | |
969 | } else { | |
970 | if (!ospf_external_info_find_lsa( | |
971 | ospf, &ei->p)) | |
972 | if (ospf_distribute_check_connected( | |
973 | ospf, ei)) | |
974 | ospf_external_lsa_originate( | |
996c9314 | 975 | ospf, ei); |
d62a17ae | 976 | } |
977 | } | |
978 | } | |
de1ac5fd | 979 | } |
953cde65 JT |
980 | } |
981 | ||
718e3744 | 982 | /* Config network statement related functions. */ |
d62a17ae | 983 | static struct ospf_network *ospf_network_new(struct in_addr area_id) |
718e3744 | 984 | { |
d62a17ae | 985 | struct ospf_network *new; |
986 | new = XCALLOC(MTYPE_OSPF_NETWORK, sizeof(struct ospf_network)); | |
718e3744 | 987 | |
d62a17ae | 988 | new->area_id = area_id; |
989 | new->area_id_fmt = OSPF_AREA_ID_FMT_DOTTEDQUAD; | |
990 | ||
991 | return new; | |
718e3744 | 992 | } |
993 | ||
d62a17ae | 994 | static void ospf_network_free(struct ospf *ospf, struct ospf_network *network) |
718e3744 | 995 | { |
d62a17ae | 996 | ospf_area_check_free(ospf, network->area_id); |
997 | ospf_schedule_abr_task(ospf); | |
998 | XFREE(MTYPE_OSPF_NETWORK, network); | |
718e3744 | 999 | } |
1000 | ||
d62a17ae | 1001 | int ospf_network_set(struct ospf *ospf, struct prefix_ipv4 *p, |
1002 | struct in_addr area_id, int df) | |
718e3744 | 1003 | { |
d62a17ae | 1004 | struct ospf_network *network; |
1005 | struct ospf_area *area; | |
1006 | struct route_node *rn; | |
718e3744 | 1007 | |
d62a17ae | 1008 | rn = route_node_get(ospf->networks, (struct prefix *)p); |
1009 | if (rn->info) { | |
2b0a905a | 1010 | network = rn->info; |
d62a17ae | 1011 | route_unlock_node(rn); |
2b0a905a DW |
1012 | |
1013 | if (IPV4_ADDR_SAME(&area_id, &network->area_id)) { | |
1014 | return 1; | |
1015 | } else { | |
1016 | /* There is already same network statement. */ | |
1017 | return 0; | |
1018 | } | |
d62a17ae | 1019 | } |
718e3744 | 1020 | |
d62a17ae | 1021 | rn->info = network = ospf_network_new(area_id); |
1022 | network->area_id_fmt = df; | |
1023 | area = ospf_area_get(ospf, area_id); | |
1024 | ospf_area_display_format_set(ospf, area, df); | |
718e3744 | 1025 | |
d62a17ae | 1026 | /* Run network config now. */ |
1027 | ospf_network_run((struct prefix *)p, area); | |
718e3744 | 1028 | |
d62a17ae | 1029 | /* Update connected redistribute. */ |
1030 | update_redistributed(ospf, 1); /* interfaces possibly added */ | |
718e3744 | 1031 | |
d62a17ae | 1032 | ospf_area_check_free(ospf, area_id); |
718e3744 | 1033 | |
d62a17ae | 1034 | return 1; |
718e3744 | 1035 | } |
1036 | ||
d62a17ae | 1037 | int ospf_network_unset(struct ospf *ospf, struct prefix_ipv4 *p, |
1038 | struct in_addr area_id) | |
718e3744 | 1039 | { |
d62a17ae | 1040 | struct route_node *rn; |
1041 | struct ospf_network *network; | |
1042 | struct listnode *node, *nnode; | |
1043 | struct ospf_interface *oi; | |
718e3744 | 1044 | |
d62a17ae | 1045 | rn = route_node_lookup(ospf->networks, (struct prefix *)p); |
1046 | if (rn == NULL) | |
1047 | return 0; | |
718e3744 | 1048 | |
d62a17ae | 1049 | network = rn->info; |
1050 | route_unlock_node(rn); | |
1051 | if (!IPV4_ADDR_SAME(&area_id, &network->area_id)) | |
1052 | return 0; | |
718e3744 | 1053 | |
d62a17ae | 1054 | ospf_network_free(ospf, rn->info); |
1055 | rn->info = NULL; | |
1056 | route_unlock_node(rn); /* initial reference */ | |
718e3744 | 1057 | |
30c0daa4 | 1058 | /* Find interfaces that are not configured already. */ |
d62a17ae | 1059 | for (ALL_LIST_ELEMENTS(ospf->oiflist, node, nnode, oi)) { |
30c0daa4 | 1060 | |
996c9314 LB |
1061 | if (oi->type == OSPF_IFTYPE_VIRTUALLINK) |
1062 | continue; | |
30c0daa4 | 1063 | |
996c9314 | 1064 | ospf_network_run_subnet(ospf, oi->connected, NULL, NULL); |
d62a17ae | 1065 | } |
953cde65 | 1066 | |
d62a17ae | 1067 | /* Update connected redistribute. */ |
1068 | update_redistributed(ospf, 0); /* interfaces possibly removed */ | |
1069 | ospf_area_check_free(ospf, area_id); | |
1070 | ||
1071 | return 1; | |
953cde65 JT |
1072 | } |
1073 | ||
52c62ab8 JAG |
1074 | /* Ensure there's an OSPF instance, as "ip ospf area" enabled OSPF means |
1075 | * there might not be any 'router ospf' config. | |
1076 | * | |
1077 | * Otherwise, doesn't do anything different to ospf_if_update for now | |
1078 | */ | |
b5a8894d | 1079 | void ospf_interface_area_set(struct ospf *ospf, struct interface *ifp) |
953cde65 | 1080 | { |
b5a8894d CS |
1081 | if (!ospf) |
1082 | return; | |
d62a17ae | 1083 | |
1084 | ospf_if_update(ospf, ifp); | |
1085 | /* if_update does a update_redistributed */ | |
1086 | ||
1087 | return; | |
953cde65 JT |
1088 | } |
1089 | ||
b5a8894d | 1090 | void ospf_interface_area_unset(struct ospf *ospf, struct interface *ifp) |
953cde65 | 1091 | { |
d62a17ae | 1092 | struct route_node *rn_oi; |
953cde65 | 1093 | |
d62a17ae | 1094 | if (!ospf) |
1095 | return; /* Ospf not ready yet */ | |
953cde65 | 1096 | |
d62a17ae | 1097 | /* Find interfaces that may need to be removed. */ |
1098 | for (rn_oi = route_top(IF_OIFS(ifp)); rn_oi; | |
1099 | rn_oi = route_next(rn_oi)) { | |
b5a8894d | 1100 | struct ospf_interface *oi = NULL; |
d62a17ae | 1101 | |
1102 | if ((oi = rn_oi->info) == NULL) | |
1103 | continue; | |
1104 | ||
1105 | if (oi->type == OSPF_IFTYPE_VIRTUALLINK) | |
1106 | continue; | |
1107 | ||
1108 | ospf_network_run_subnet(ospf, oi->connected, NULL, NULL); | |
1109 | } | |
953cde65 | 1110 | |
d62a17ae | 1111 | /* Update connected redistribute. */ |
1112 | update_redistributed(ospf, 0); /* interfaces possibly removed */ | |
718e3744 | 1113 | } |
1114 | ||
e9f07a30 PG |
1115 | bool ospf_interface_area_is_already_set(struct ospf *ospf, |
1116 | struct interface *ifp) | |
1117 | { | |
1118 | struct route_node *rn_oi; | |
1119 | ||
1120 | if (!ospf) | |
1121 | return false; /* Ospf not ready yet */ | |
1122 | ||
1123 | /* Find interfaces that may need to be removed. */ | |
1124 | for (rn_oi = route_top(IF_OIFS(ifp)); rn_oi; | |
1125 | rn_oi = route_next(rn_oi)) { | |
1126 | struct ospf_interface *oi = rn_oi->info; | |
1127 | ||
1128 | if (oi == NULL) | |
1129 | continue; | |
1130 | ||
1131 | if (oi->type == OSPF_IFTYPE_VIRTUALLINK) | |
1132 | continue; | |
1133 | /* at least one route covered by interface | |
1134 | * that implies already done | |
1135 | */ | |
1136 | return true; | |
1137 | } | |
1138 | return false; | |
1139 | } | |
1140 | ||
570f7598 | 1141 | /* Check whether interface matches given network |
1142 | * returns: 1, true. 0, false | |
1143 | */ | |
d62a17ae | 1144 | static int ospf_network_match_iface(const struct connected *co, |
1145 | const struct prefix *net) | |
570f7598 | 1146 | { |
d62a17ae | 1147 | /* new approach: more elegant and conceptually clean */ |
1148 | return prefix_match_network_statement(net, CONNECTED_PREFIX(co)); | |
570f7598 | 1149 | } |
1150 | ||
d62a17ae | 1151 | static void ospf_update_interface_area(struct connected *co, |
1152 | struct ospf_area *area) | |
52c62ab8 | 1153 | { |
d62a17ae | 1154 | struct ospf_interface *oi = ospf_if_table_lookup(co->ifp, co->address); |
1155 | ||
1156 | /* nothing to be done case */ | |
1157 | if (oi && oi->area == area) { | |
1158 | return; | |
1159 | } | |
1160 | ||
1161 | if (oi) | |
1162 | ospf_if_free(oi); | |
1163 | ||
1164 | add_ospf_interface(co, area); | |
52c62ab8 JAG |
1165 | } |
1166 | ||
1167 | /* Run OSPF for the given subnet, taking into account the following | |
1168 | * possible sources of area configuration, in the given order of preference: | |
1169 | * | |
1170 | * - Whether there is interface+address specific area configuration | |
1171 | * - Whether there is a default area for the interface | |
1172 | * - Whether there is an area given as a parameter. | |
1173 | * - If no specific network prefix/area is supplied, whether there's | |
1174 | * a matching network configured. | |
1175 | */ | |
d62a17ae | 1176 | static void ospf_network_run_subnet(struct ospf *ospf, struct connected *co, |
1177 | struct prefix *p, | |
1178 | struct ospf_area *given_area) | |
1179 | { | |
1180 | struct ospf_interface *oi; | |
1181 | struct ospf_if_params *params; | |
1182 | struct ospf_area *area = NULL; | |
1183 | struct route_node *rn; | |
1184 | int configed = 0; | |
1185 | ||
1186 | if (CHECK_FLAG(co->flags, ZEBRA_IFA_SECONDARY)) | |
1187 | return; | |
1188 | ||
1189 | if (co->address->family != AF_INET) | |
1190 | return; | |
1191 | ||
1192 | /* Try determine the appropriate area for this interface + address | |
1193 | * Start by checking interface config | |
1194 | */ | |
1195 | params = ospf_lookup_if_params(co->ifp, co->address->u.prefix4); | |
1196 | if (params && OSPF_IF_PARAM_CONFIGURED(params, if_area)) | |
1197 | area = ospf_area_get(ospf, params->if_area); | |
1198 | else { | |
1199 | params = IF_DEF_PARAMS(co->ifp); | |
1200 | if (OSPF_IF_PARAM_CONFIGURED(params, if_area)) | |
1201 | area = ospf_area_get(ospf, params->if_area); | |
1202 | } | |
52c62ab8 | 1203 | |
d62a17ae | 1204 | /* If we've found an interface and/or addr specific area, then we're |
1205 | * done | |
1206 | */ | |
1207 | if (area) { | |
1208 | ospf_update_interface_area(co, area); | |
1209 | return; | |
1210 | } | |
718e3744 | 1211 | |
d62a17ae | 1212 | /* Otherwise, only remaining possibility is a matching network statement |
1213 | */ | |
1214 | if (p) { | |
1215 | assert(given_area != NULL); | |
1216 | ||
1217 | /* Which either was supplied as a parameter.. (e.g. cause a new | |
1218 | * network/area was just added).. | |
1219 | */ | |
1220 | if (p->family == co->address->family | |
1221 | && ospf_network_match_iface(co, p)) | |
1222 | ospf_update_interface_area(co, given_area); | |
1223 | ||
1224 | return; | |
1225 | } | |
1226 | ||
1227 | /* Else we have to search the existing network/area config to see | |
1228 | * if any match.. | |
1229 | */ | |
1230 | for (rn = route_top(ospf->networks); rn; rn = route_next(rn)) | |
1231 | if (rn->info != NULL && ospf_network_match_iface(co, &rn->p)) { | |
1232 | struct ospf_network *network = | |
1233 | (struct ospf_network *)rn->info; | |
1234 | area = ospf_area_get(ospf, network->area_id); | |
1235 | ospf_update_interface_area(co, area); | |
1236 | configed = 1; | |
1237 | } | |
1238 | ||
1239 | /* If the subnet isn't in any area, deconfigure */ | |
1240 | if (!configed && (oi = ospf_if_table_lookup(co->ifp, co->address))) | |
1241 | ospf_if_free(oi); | |
718e3744 | 1242 | } |
1243 | ||
d62a17ae | 1244 | static void ospf_network_run_interface(struct ospf *ospf, struct interface *ifp, |
1245 | struct prefix *p, | |
1246 | struct ospf_area *given_area) | |
718e3744 | 1247 | { |
d62a17ae | 1248 | struct listnode *cnode; |
1249 | struct connected *co; | |
1250 | ||
1251 | if (memcmp(ifp->name, "VLINK", 5) == 0) | |
1252 | return; | |
718e3744 | 1253 | |
d62a17ae | 1254 | /* Network prefix without area is nonsensical */ |
1255 | if (p) | |
1256 | assert(given_area != NULL); | |
1257 | ||
1258 | /* if interface prefix is match specified prefix, | |
1259 | then create socket and join multicast group. */ | |
1260 | for (ALL_LIST_ELEMENTS_RO(ifp->connected, cnode, co)) | |
1261 | ospf_network_run_subnet(ospf, co, p, given_area); | |
718e3744 | 1262 | } |
1263 | ||
d62a17ae | 1264 | static void ospf_network_run(struct prefix *p, struct ospf_area *area) |
718e3744 | 1265 | { |
f4e14fdb | 1266 | struct vrf *vrf = vrf_lookup_by_id(area->ospf->vrf_id); |
d62a17ae | 1267 | struct interface *ifp; |
d62a17ae | 1268 | |
1269 | /* Schedule Router ID Update. */ | |
1270 | if (area->ospf->router_id.s_addr == 0) | |
1271 | ospf_router_id_update(area->ospf); | |
718e3744 | 1272 | |
d62a17ae | 1273 | /* Get target interface. */ |
451fda4f | 1274 | FOR_ALL_INTERFACES (vrf, ifp) |
d62a17ae | 1275 | ospf_network_run_interface(area->ospf, ifp, p, area); |
718e3744 | 1276 | } |
1277 | ||
d62a17ae | 1278 | void ospf_ls_upd_queue_empty(struct ospf_interface *oi) |
1279 | { | |
1280 | struct route_node *rn; | |
1281 | struct listnode *node, *nnode; | |
1282 | struct list *lst; | |
1283 | struct ospf_lsa *lsa; | |
1284 | ||
1285 | /* empty ls update queue */ | |
1286 | for (rn = route_top(oi->ls_upd_queue); rn; rn = route_next(rn)) | |
1287 | if ((lst = (struct list *)rn->info)) { | |
1288 | for (ALL_LIST_ELEMENTS(lst, node, nnode, lsa)) | |
1289 | ospf_lsa_unlock(&lsa); /* oi->ls_upd_queue */ | |
6a154c88 | 1290 | list_delete(&lst); |
d62a17ae | 1291 | rn->info = NULL; |
1292 | } | |
1293 | ||
1294 | /* remove update event */ | |
1295 | if (oi->t_ls_upd_event) { | |
1296 | thread_cancel(oi->t_ls_upd_event); | |
1297 | oi->t_ls_upd_event = NULL; | |
1298 | } | |
1299 | } | |
6b0655a2 | 1300 | |
d62a17ae | 1301 | void ospf_if_update(struct ospf *ospf, struct interface *ifp) |
718e3744 | 1302 | { |
43b8d1d8 | 1303 | |
d62a17ae | 1304 | if (!ospf) |
43b8d1d8 | 1305 | return; |
b5a8894d CS |
1306 | |
1307 | if (IS_DEBUG_OSPF_EVENT) | |
996c9314 | 1308 | zlog_debug( |
a36898e7 DS |
1309 | "%s: interface %s ifp->vrf_id %u ospf vrf %s vrf_id %u router_id %s", |
1310 | __PRETTY_FUNCTION__, ifp->name, ifp->vrf_id, | |
996c9314 LB |
1311 | ospf_vrf_id_to_name(ospf->vrf_id), ospf->vrf_id, |
1312 | inet_ntoa(ospf->router_id)); | |
d62a17ae | 1313 | |
1314 | /* OSPF must be ready. */ | |
1315 | if (!ospf_is_ready(ospf)) | |
1316 | return; | |
1317 | ||
1318 | ospf_network_run_interface(ospf, ifp, NULL, NULL); | |
1319 | ||
1320 | /* Update connected redistribute. */ | |
1321 | update_redistributed(ospf, 1); | |
ef7bd2a3 | 1322 | |
d62a17ae | 1323 | } |
718e3744 | 1324 | |
d62a17ae | 1325 | void ospf_remove_vls_through_area(struct ospf *ospf, struct ospf_area *area) |
718e3744 | 1326 | { |
d62a17ae | 1327 | struct listnode *node, *nnode; |
1328 | struct ospf_vl_data *vl_data; | |
718e3744 | 1329 | |
d62a17ae | 1330 | for (ALL_LIST_ELEMENTS(ospf->vlinks, node, nnode, vl_data)) |
1331 | if (IPV4_ADDR_SAME(&vl_data->vl_area_id, &area->area_id)) | |
1332 | ospf_vl_delete(ospf, vl_data); | |
1333 | } | |
718e3744 | 1334 | |
718e3744 | 1335 | |
d62a17ae | 1336 | static const struct message ospf_area_type_msg[] = { |
1337 | {OSPF_AREA_DEFAULT, "Default"}, | |
1338 | {OSPF_AREA_STUB, "Stub"}, | |
1339 | {OSPF_AREA_NSSA, "NSSA"}, | |
1340 | {0}}; | |
718e3744 | 1341 | |
d62a17ae | 1342 | static void ospf_area_type_set(struct ospf_area *area, int type) |
1343 | { | |
1344 | struct listnode *node; | |
1345 | struct ospf_interface *oi; | |
1346 | ||
1347 | if (area->external_routing == type) { | |
1348 | if (IS_DEBUG_OSPF_EVENT) | |
1349 | zlog_debug("Area[%s]: Types are the same, ignored.", | |
1350 | inet_ntoa(area->area_id)); | |
1351 | return; | |
1352 | } | |
718e3744 | 1353 | |
d62a17ae | 1354 | area->external_routing = type; |
1355 | ||
1356 | if (IS_DEBUG_OSPF_EVENT) | |
1357 | zlog_debug("Area[%s]: Configured as %s", | |
1358 | inet_ntoa(area->area_id), | |
1359 | lookup_msg(ospf_area_type_msg, type, NULL)); | |
1360 | ||
1361 | switch (area->external_routing) { | |
1362 | case OSPF_AREA_DEFAULT: | |
1363 | for (ALL_LIST_ELEMENTS_RO(area->oiflist, node, oi)) | |
1364 | if (oi->nbr_self != NULL) { | |
1365 | UNSET_FLAG(oi->nbr_self->options, | |
1366 | OSPF_OPTION_NP); | |
1367 | SET_FLAG(oi->nbr_self->options, OSPF_OPTION_E); | |
1368 | } | |
1369 | break; | |
1370 | case OSPF_AREA_STUB: | |
1371 | for (ALL_LIST_ELEMENTS_RO(area->oiflist, node, oi)) | |
1372 | if (oi->nbr_self != NULL) { | |
1373 | if (IS_DEBUG_OSPF_EVENT) | |
1374 | zlog_debug( | |
1375 | "setting options on %s accordingly", | |
1376 | IF_NAME(oi)); | |
1377 | UNSET_FLAG(oi->nbr_self->options, | |
1378 | OSPF_OPTION_NP); | |
1379 | UNSET_FLAG(oi->nbr_self->options, | |
1380 | OSPF_OPTION_E); | |
1381 | if (IS_DEBUG_OSPF_EVENT) | |
1382 | zlog_debug("options set on %s: %x", | |
1383 | IF_NAME(oi), OPTIONS(oi)); | |
1384 | } | |
1385 | break; | |
1386 | case OSPF_AREA_NSSA: | |
1387 | for (ALL_LIST_ELEMENTS_RO(area->oiflist, node, oi)) | |
1388 | if (oi->nbr_self != NULL) { | |
1389 | zlog_debug( | |
1390 | "setting nssa options on %s accordingly", | |
1391 | IF_NAME(oi)); | |
1392 | UNSET_FLAG(oi->nbr_self->options, | |
1393 | OSPF_OPTION_E); | |
1394 | SET_FLAG(oi->nbr_self->options, OSPF_OPTION_NP); | |
1395 | zlog_debug("options set on %s: %x", IF_NAME(oi), | |
1396 | OPTIONS(oi)); | |
1397 | } | |
1398 | break; | |
1399 | default: | |
1400 | break; | |
1401 | } | |
1402 | ||
1403 | ospf_router_lsa_update_area(area); | |
1404 | ospf_schedule_abr_task(area->ospf); | |
718e3744 | 1405 | } |
1406 | ||
d62a17ae | 1407 | int ospf_area_shortcut_set(struct ospf *ospf, struct ospf_area *area, int mode) |
718e3744 | 1408 | { |
d62a17ae | 1409 | if (area->shortcut_configured == mode) |
1410 | return 0; | |
718e3744 | 1411 | |
d62a17ae | 1412 | area->shortcut_configured = mode; |
1413 | ospf_router_lsa_update_area(area); | |
1414 | ospf_schedule_abr_task(ospf); | |
718e3744 | 1415 | |
d62a17ae | 1416 | ospf_area_check_free(ospf, area->area_id); |
718e3744 | 1417 | |
d62a17ae | 1418 | return 1; |
718e3744 | 1419 | } |
1420 | ||
d62a17ae | 1421 | int ospf_area_shortcut_unset(struct ospf *ospf, struct ospf_area *area) |
718e3744 | 1422 | { |
d62a17ae | 1423 | area->shortcut_configured = OSPF_SHORTCUT_DEFAULT; |
1424 | ospf_router_lsa_update_area(area); | |
1425 | ospf_area_check_free(ospf, area->area_id); | |
1426 | ospf_schedule_abr_task(ospf); | |
718e3744 | 1427 | |
d62a17ae | 1428 | return 1; |
718e3744 | 1429 | } |
1430 | ||
d62a17ae | 1431 | static int ospf_area_vlink_count(struct ospf *ospf, struct ospf_area *area) |
718e3744 | 1432 | { |
d62a17ae | 1433 | struct ospf_vl_data *vl; |
1434 | struct listnode *node; | |
1435 | int count = 0; | |
718e3744 | 1436 | |
d62a17ae | 1437 | for (ALL_LIST_ELEMENTS_RO(ospf->vlinks, node, vl)) |
1438 | if (IPV4_ADDR_SAME(&vl->vl_area_id, &area->area_id)) | |
1439 | count++; | |
718e3744 | 1440 | |
d62a17ae | 1441 | return count; |
718e3744 | 1442 | } |
1443 | ||
d62a17ae | 1444 | int ospf_area_display_format_set(struct ospf *ospf, struct ospf_area *area, |
1445 | int df) | |
86573dcb | 1446 | { |
d62a17ae | 1447 | area->area_id_fmt = df; |
86573dcb | 1448 | |
d62a17ae | 1449 | return 1; |
86573dcb QY |
1450 | } |
1451 | ||
d62a17ae | 1452 | int ospf_area_stub_set(struct ospf *ospf, struct in_addr area_id) |
718e3744 | 1453 | { |
d62a17ae | 1454 | struct ospf_area *area; |
718e3744 | 1455 | |
d62a17ae | 1456 | area = ospf_area_get(ospf, area_id); |
1457 | if (ospf_area_vlink_count(ospf, area)) | |
1458 | return 0; | |
718e3744 | 1459 | |
d62a17ae | 1460 | if (area->external_routing != OSPF_AREA_STUB) |
1461 | ospf_area_type_set(area, OSPF_AREA_STUB); | |
718e3744 | 1462 | |
d62a17ae | 1463 | return 1; |
718e3744 | 1464 | } |
1465 | ||
d62a17ae | 1466 | int ospf_area_stub_unset(struct ospf *ospf, struct in_addr area_id) |
718e3744 | 1467 | { |
d62a17ae | 1468 | struct ospf_area *area; |
718e3744 | 1469 | |
d62a17ae | 1470 | area = ospf_area_lookup_by_area_id(ospf, area_id); |
1471 | if (area == NULL) | |
1472 | return 1; | |
718e3744 | 1473 | |
d62a17ae | 1474 | if (area->external_routing == OSPF_AREA_STUB) |
1475 | ospf_area_type_set(area, OSPF_AREA_DEFAULT); | |
718e3744 | 1476 | |
d62a17ae | 1477 | ospf_area_check_free(ospf, area_id); |
718e3744 | 1478 | |
d62a17ae | 1479 | return 1; |
718e3744 | 1480 | } |
1481 | ||
d62a17ae | 1482 | int ospf_area_no_summary_set(struct ospf *ospf, struct in_addr area_id) |
718e3744 | 1483 | { |
d62a17ae | 1484 | struct ospf_area *area; |
718e3744 | 1485 | |
d62a17ae | 1486 | area = ospf_area_get(ospf, area_id); |
1487 | area->no_summary = 1; | |
718e3744 | 1488 | |
d62a17ae | 1489 | return 1; |
718e3744 | 1490 | } |
1491 | ||
d62a17ae | 1492 | int ospf_area_no_summary_unset(struct ospf *ospf, struct in_addr area_id) |
718e3744 | 1493 | { |
d62a17ae | 1494 | struct ospf_area *area; |
718e3744 | 1495 | |
d62a17ae | 1496 | area = ospf_area_lookup_by_area_id(ospf, area_id); |
1497 | if (area == NULL) | |
1498 | return 0; | |
718e3744 | 1499 | |
d62a17ae | 1500 | area->no_summary = 0; |
1501 | ospf_area_check_free(ospf, area_id); | |
718e3744 | 1502 | |
d62a17ae | 1503 | return 1; |
718e3744 | 1504 | } |
1505 | ||
7ef56a73 | 1506 | int ospf_area_nssa_no_summary_set(struct ospf *ospf, struct in_addr area_id) |
718e3744 | 1507 | { |
d62a17ae | 1508 | struct ospf_area *area; |
718e3744 | 1509 | |
d62a17ae | 1510 | area = ospf_area_get(ospf, area_id); |
1511 | if (ospf_area_vlink_count(ospf, area)) | |
1512 | return 0; | |
718e3744 | 1513 | |
d62a17ae | 1514 | if (area->external_routing != OSPF_AREA_NSSA) { |
1515 | ospf_area_type_set(area, OSPF_AREA_NSSA); | |
1516 | ospf->anyNSSA++; | |
7ef56a73 | 1517 | area->NSSATranslatorRole = OSPF_NSSA_ROLE_CANDIDATE; |
d62a17ae | 1518 | } |
718e3744 | 1519 | |
7ef56a73 | 1520 | ospf_area_no_summary_set(ospf, area_id); |
084c7844 | 1521 | |
d62a17ae | 1522 | return 1; |
718e3744 | 1523 | } |
1524 | ||
7ef56a73 CS |
1525 | int ospf_area_nssa_set(struct ospf *ospf, struct in_addr area_id) |
1526 | { | |
1527 | struct ospf_area *area; | |
1528 | ||
1529 | area = ospf_area_get(ospf, area_id); | |
1530 | if (ospf_area_vlink_count(ospf, area)) | |
1531 | return 0; | |
1532 | ||
1533 | if (area->external_routing != OSPF_AREA_NSSA) { | |
1534 | ospf_area_type_set(area, OSPF_AREA_NSSA); | |
1535 | ospf->anyNSSA++; | |
1536 | ||
1537 | /* set NSSA area defaults */ | |
1538 | area->no_summary = 0; | |
1539 | area->NSSATranslatorRole = OSPF_NSSA_ROLE_CANDIDATE; | |
1540 | area->NSSATranslatorState = OSPF_NSSA_TRANSLATE_DISABLED; | |
1541 | area->NSSATranslatorStabilityInterval = | |
1542 | OSPF_NSSA_TRANS_STABLE_DEFAULT; | |
1543 | } | |
1544 | return 1; | |
1545 | } | |
1546 | ||
1547 | int ospf_area_nssa_unset(struct ospf *ospf, struct in_addr area_id, int argc) | |
718e3744 | 1548 | { |
d62a17ae | 1549 | struct ospf_area *area; |
718e3744 | 1550 | |
d62a17ae | 1551 | area = ospf_area_lookup_by_area_id(ospf, area_id); |
1552 | if (area == NULL) | |
1553 | return 0; | |
718e3744 | 1554 | |
7ef56a73 CS |
1555 | /* argc < 5 -> 'no area x nssa' */ |
1556 | if (argc < 5 && area->external_routing == OSPF_AREA_NSSA) { | |
d62a17ae | 1557 | ospf->anyNSSA--; |
7ef56a73 CS |
1558 | /* set NSSA area defaults */ |
1559 | area->no_summary = 0; | |
1560 | area->NSSATranslatorRole = OSPF_NSSA_ROLE_CANDIDATE; | |
1561 | area->NSSATranslatorState = OSPF_NSSA_TRANSLATE_DISABLED; | |
1562 | area->NSSATranslatorStabilityInterval = | |
1563 | OSPF_NSSA_TRANS_STABLE_DEFAULT; | |
d62a17ae | 1564 | ospf_area_type_set(area, OSPF_AREA_DEFAULT); |
7ef56a73 CS |
1565 | } else { |
1566 | area->NSSATranslatorRole = OSPF_NSSA_ROLE_CANDIDATE; | |
d62a17ae | 1567 | } |
718e3744 | 1568 | |
d62a17ae | 1569 | ospf_area_check_free(ospf, area_id); |
718e3744 | 1570 | |
d62a17ae | 1571 | return 1; |
718e3744 | 1572 | } |
1573 | ||
d62a17ae | 1574 | int ospf_area_nssa_translator_role_set(struct ospf *ospf, |
1575 | struct in_addr area_id, int role) | |
718e3744 | 1576 | { |
d62a17ae | 1577 | struct ospf_area *area; |
718e3744 | 1578 | |
d62a17ae | 1579 | area = ospf_area_lookup_by_area_id(ospf, area_id); |
1580 | if (area == NULL) | |
1581 | return 0; | |
718e3744 | 1582 | |
d62a17ae | 1583 | area->NSSATranslatorRole = role; |
718e3744 | 1584 | |
d62a17ae | 1585 | return 1; |
718e3744 | 1586 | } |
1587 | ||
075e12f5 | 1588 | #if 0 |
4dadc291 | 1589 | /* XXX: unused? Leave for symmetry? */ |
1590 | static int | |
718e3744 | 1591 | ospf_area_nssa_translator_role_unset (struct ospf *ospf, |
1592 | struct in_addr area_id) | |
1593 | { | |
1594 | struct ospf_area *area; | |
1595 | ||
68980084 | 1596 | area = ospf_area_lookup_by_area_id (ospf, area_id); |
718e3744 | 1597 | if (area == NULL) |
1598 | return 0; | |
1599 | ||
084c7844 | 1600 | area->NSSATranslatorRole = OSPF_NSSA_ROLE_CANDIDATE; |
718e3744 | 1601 | |
68980084 | 1602 | ospf_area_check_free (ospf, area_id); |
718e3744 | 1603 | |
1604 | return 1; | |
1605 | } | |
075e12f5 | 1606 | #endif |
718e3744 | 1607 | |
d62a17ae | 1608 | int ospf_area_export_list_set(struct ospf *ospf, struct ospf_area *area, |
1609 | const char *list_name) | |
718e3744 | 1610 | { |
d62a17ae | 1611 | struct access_list *list; |
1612 | list = access_list_lookup(AFI_IP, list_name); | |
718e3744 | 1613 | |
d62a17ae | 1614 | EXPORT_LIST(area) = list; |
718e3744 | 1615 | |
d62a17ae | 1616 | if (EXPORT_NAME(area)) |
1617 | free(EXPORT_NAME(area)); | |
718e3744 | 1618 | |
d62a17ae | 1619 | EXPORT_NAME(area) = strdup(list_name); |
1620 | ospf_schedule_abr_task(ospf); | |
718e3744 | 1621 | |
d62a17ae | 1622 | return 1; |
718e3744 | 1623 | } |
1624 | ||
d62a17ae | 1625 | int ospf_area_export_list_unset(struct ospf *ospf, struct ospf_area *area) |
718e3744 | 1626 | { |
1627 | ||
d62a17ae | 1628 | EXPORT_LIST(area) = 0; |
718e3744 | 1629 | |
d62a17ae | 1630 | if (EXPORT_NAME(area)) |
1631 | free(EXPORT_NAME(area)); | |
718e3744 | 1632 | |
d62a17ae | 1633 | EXPORT_NAME(area) = NULL; |
718e3744 | 1634 | |
d62a17ae | 1635 | ospf_area_check_free(ospf, area->area_id); |
718e3744 | 1636 | |
d62a17ae | 1637 | ospf_schedule_abr_task(ospf); |
1638 | ||
1639 | return 1; | |
718e3744 | 1640 | } |
1641 | ||
d62a17ae | 1642 | int ospf_area_import_list_set(struct ospf *ospf, struct ospf_area *area, |
1643 | const char *name) | |
718e3744 | 1644 | { |
d62a17ae | 1645 | struct access_list *list; |
1646 | list = access_list_lookup(AFI_IP, name); | |
718e3744 | 1647 | |
d62a17ae | 1648 | IMPORT_LIST(area) = list; |
718e3744 | 1649 | |
d62a17ae | 1650 | if (IMPORT_NAME(area)) |
1651 | free(IMPORT_NAME(area)); | |
718e3744 | 1652 | |
d62a17ae | 1653 | IMPORT_NAME(area) = strdup(name); |
1654 | ospf_schedule_abr_task(ospf); | |
718e3744 | 1655 | |
d62a17ae | 1656 | return 1; |
718e3744 | 1657 | } |
1658 | ||
d62a17ae | 1659 | int ospf_area_import_list_unset(struct ospf *ospf, struct ospf_area *area) |
718e3744 | 1660 | { |
d62a17ae | 1661 | IMPORT_LIST(area) = 0; |
718e3744 | 1662 | |
d62a17ae | 1663 | if (IMPORT_NAME(area)) |
1664 | free(IMPORT_NAME(area)); | |
718e3744 | 1665 | |
d62a17ae | 1666 | IMPORT_NAME(area) = NULL; |
1667 | ospf_area_check_free(ospf, area->area_id); | |
718e3744 | 1668 | |
d62a17ae | 1669 | ospf_schedule_abr_task(ospf); |
718e3744 | 1670 | |
d62a17ae | 1671 | return 1; |
718e3744 | 1672 | } |
1673 | ||
d62a17ae | 1674 | int ospf_timers_refresh_set(struct ospf *ospf, int interval) |
718e3744 | 1675 | { |
d62a17ae | 1676 | int time_left; |
718e3744 | 1677 | |
d62a17ae | 1678 | if (ospf->lsa_refresh_interval == interval) |
1679 | return 1; | |
718e3744 | 1680 | |
d62a17ae | 1681 | time_left = ospf->lsa_refresh_interval |
1682 | - (monotime(NULL) - ospf->lsa_refresher_started); | |
718e3744 | 1683 | |
d62a17ae | 1684 | if (time_left > interval) { |
1685 | OSPF_TIMER_OFF(ospf->t_lsa_refresher); | |
1686 | thread_add_timer(master, ospf_lsa_refresh_walker, ospf, | |
1687 | interval, &ospf->t_lsa_refresher); | |
1688 | } | |
1689 | ospf->lsa_refresh_interval = interval; | |
1690 | ||
1691 | return 1; | |
718e3744 | 1692 | } |
1693 | ||
d62a17ae | 1694 | int ospf_timers_refresh_unset(struct ospf *ospf) |
718e3744 | 1695 | { |
d62a17ae | 1696 | int time_left; |
718e3744 | 1697 | |
d62a17ae | 1698 | time_left = ospf->lsa_refresh_interval |
1699 | - (monotime(NULL) - ospf->lsa_refresher_started); | |
718e3744 | 1700 | |
d62a17ae | 1701 | if (time_left > OSPF_LSA_REFRESH_INTERVAL_DEFAULT) { |
1702 | OSPF_TIMER_OFF(ospf->t_lsa_refresher); | |
1703 | ospf->t_lsa_refresher = NULL; | |
1704 | thread_add_timer(master, ospf_lsa_refresh_walker, ospf, | |
1705 | OSPF_LSA_REFRESH_INTERVAL_DEFAULT, | |
1706 | &ospf->t_lsa_refresher); | |
1707 | } | |
718e3744 | 1708 | |
d62a17ae | 1709 | ospf->lsa_refresh_interval = OSPF_LSA_REFRESH_INTERVAL_DEFAULT; |
718e3744 | 1710 | |
d62a17ae | 1711 | return 1; |
718e3744 | 1712 | } |
1713 | ||
6b0655a2 | 1714 | |
d62a17ae | 1715 | static struct ospf_nbr_nbma *ospf_nbr_nbma_new(void) |
718e3744 | 1716 | { |
d62a17ae | 1717 | struct ospf_nbr_nbma *nbr_nbma; |
718e3744 | 1718 | |
d62a17ae | 1719 | nbr_nbma = XCALLOC(MTYPE_OSPF_NEIGHBOR_STATIC, |
1720 | sizeof(struct ospf_nbr_nbma)); | |
718e3744 | 1721 | |
d62a17ae | 1722 | nbr_nbma->priority = OSPF_NEIGHBOR_PRIORITY_DEFAULT; |
1723 | nbr_nbma->v_poll = OSPF_POLL_INTERVAL_DEFAULT; | |
718e3744 | 1724 | |
d62a17ae | 1725 | return nbr_nbma; |
718e3744 | 1726 | } |
1727 | ||
d62a17ae | 1728 | static void ospf_nbr_nbma_free(struct ospf_nbr_nbma *nbr_nbma) |
718e3744 | 1729 | { |
d62a17ae | 1730 | XFREE(MTYPE_OSPF_NEIGHBOR_STATIC, nbr_nbma); |
718e3744 | 1731 | } |
1732 | ||
d62a17ae | 1733 | static void ospf_nbr_nbma_delete(struct ospf *ospf, |
1734 | struct ospf_nbr_nbma *nbr_nbma) | |
718e3744 | 1735 | { |
d62a17ae | 1736 | struct route_node *rn; |
1737 | struct prefix_ipv4 p; | |
718e3744 | 1738 | |
d62a17ae | 1739 | p.family = AF_INET; |
1740 | p.prefix = nbr_nbma->addr; | |
1741 | p.prefixlen = IPV4_MAX_BITLEN; | |
718e3744 | 1742 | |
d62a17ae | 1743 | rn = route_node_lookup(ospf->nbr_nbma, (struct prefix *)&p); |
1744 | if (rn) { | |
1745 | ospf_nbr_nbma_free(rn->info); | |
1746 | rn->info = NULL; | |
1747 | route_unlock_node(rn); | |
1748 | route_unlock_node(rn); | |
1749 | } | |
718e3744 | 1750 | } |
1751 | ||
d62a17ae | 1752 | static void ospf_nbr_nbma_down(struct ospf_nbr_nbma *nbr_nbma) |
718e3744 | 1753 | { |
d62a17ae | 1754 | OSPF_TIMER_OFF(nbr_nbma->t_poll); |
718e3744 | 1755 | |
d62a17ae | 1756 | if (nbr_nbma->nbr) { |
1757 | nbr_nbma->nbr->nbr_nbma = NULL; | |
1758 | OSPF_NSM_EVENT_EXECUTE(nbr_nbma->nbr, NSM_KillNbr); | |
1759 | } | |
718e3744 | 1760 | |
d62a17ae | 1761 | if (nbr_nbma->oi) |
1762 | listnode_delete(nbr_nbma->oi->nbr_nbma, nbr_nbma); | |
718e3744 | 1763 | } |
1764 | ||
d62a17ae | 1765 | static void ospf_nbr_nbma_add(struct ospf_nbr_nbma *nbr_nbma, |
1766 | struct ospf_interface *oi) | |
718e3744 | 1767 | { |
d62a17ae | 1768 | struct ospf_neighbor *nbr; |
1769 | struct route_node *rn; | |
1770 | struct prefix p; | |
718e3744 | 1771 | |
d62a17ae | 1772 | if (oi->type != OSPF_IFTYPE_NBMA) |
1773 | return; | |
718e3744 | 1774 | |
d62a17ae | 1775 | if (nbr_nbma->nbr != NULL) |
1776 | return; | |
718e3744 | 1777 | |
d62a17ae | 1778 | if (IPV4_ADDR_SAME(&oi->nbr_self->address.u.prefix4, &nbr_nbma->addr)) |
1779 | return; | |
718e3744 | 1780 | |
d62a17ae | 1781 | nbr_nbma->oi = oi; |
1782 | listnode_add(oi->nbr_nbma, nbr_nbma); | |
718e3744 | 1783 | |
d62a17ae | 1784 | /* Get neighbor information from table. */ |
1785 | p.family = AF_INET; | |
1786 | p.prefixlen = IPV4_MAX_BITLEN; | |
1787 | p.u.prefix4 = nbr_nbma->addr; | |
718e3744 | 1788 | |
d62a17ae | 1789 | rn = route_node_get(oi->nbrs, (struct prefix *)&p); |
1790 | if (rn->info) { | |
1791 | nbr = rn->info; | |
1792 | nbr->nbr_nbma = nbr_nbma; | |
1793 | nbr_nbma->nbr = nbr; | |
718e3744 | 1794 | |
d62a17ae | 1795 | route_unlock_node(rn); |
1796 | } else { | |
1797 | nbr = rn->info = ospf_nbr_new(oi); | |
1798 | nbr->state = NSM_Down; | |
1799 | nbr->src = nbr_nbma->addr; | |
1800 | nbr->nbr_nbma = nbr_nbma; | |
1801 | nbr->priority = nbr_nbma->priority; | |
1802 | nbr->address = p; | |
718e3744 | 1803 | |
d62a17ae | 1804 | nbr_nbma->nbr = nbr; |
1805 | ||
1806 | OSPF_NSM_EVENT_EXECUTE(nbr, NSM_Start); | |
1807 | } | |
718e3744 | 1808 | } |
1809 | ||
d62a17ae | 1810 | void ospf_nbr_nbma_if_update(struct ospf *ospf, struct ospf_interface *oi) |
718e3744 | 1811 | { |
d62a17ae | 1812 | struct ospf_nbr_nbma *nbr_nbma; |
1813 | struct route_node *rn; | |
1814 | struct prefix_ipv4 p; | |
718e3744 | 1815 | |
d62a17ae | 1816 | if (oi->type != OSPF_IFTYPE_NBMA) |
1817 | return; | |
718e3744 | 1818 | |
d62a17ae | 1819 | for (rn = route_top(ospf->nbr_nbma); rn; rn = route_next(rn)) |
1820 | if ((nbr_nbma = rn->info)) | |
1821 | if (nbr_nbma->oi == NULL && nbr_nbma->nbr == NULL) { | |
1822 | p.family = AF_INET; | |
1823 | p.prefix = nbr_nbma->addr; | |
1824 | p.prefixlen = IPV4_MAX_BITLEN; | |
718e3744 | 1825 | |
d62a17ae | 1826 | if (prefix_match(oi->address, |
1827 | (struct prefix *)&p)) | |
1828 | ospf_nbr_nbma_add(nbr_nbma, oi); | |
1829 | } | |
718e3744 | 1830 | } |
1831 | ||
d62a17ae | 1832 | struct ospf_nbr_nbma *ospf_nbr_nbma_lookup(struct ospf *ospf, |
1833 | struct in_addr nbr_addr) | |
718e3744 | 1834 | { |
d62a17ae | 1835 | struct route_node *rn; |
1836 | struct prefix_ipv4 p; | |
718e3744 | 1837 | |
d62a17ae | 1838 | p.family = AF_INET; |
1839 | p.prefix = nbr_addr; | |
1840 | p.prefixlen = IPV4_MAX_BITLEN; | |
718e3744 | 1841 | |
d62a17ae | 1842 | rn = route_node_lookup(ospf->nbr_nbma, (struct prefix *)&p); |
1843 | if (rn) { | |
1844 | route_unlock_node(rn); | |
1845 | return rn->info; | |
1846 | } | |
1847 | return NULL; | |
718e3744 | 1848 | } |
1849 | ||
d62a17ae | 1850 | struct ospf_nbr_nbma *ospf_nbr_nbma_lookup_next(struct ospf *ospf, |
1851 | struct in_addr *addr, int first) | |
718e3744 | 1852 | { |
1853 | #if 0 | |
1854 | struct ospf_nbr_nbma *nbr_nbma; | |
52dc7ee6 | 1855 | struct listnode *node; |
718e3744 | 1856 | #endif |
1857 | ||
d62a17ae | 1858 | if (ospf == NULL) |
1859 | return NULL; | |
718e3744 | 1860 | |
1861 | #if 0 | |
1eb8ef25 | 1862 | for (ALL_LIST_ELEMENTS_RO (ospf->nbr_nbma, node, nbr_nbma)) |
718e3744 | 1863 | { |
718e3744 | 1864 | if (first) |
1865 | { | |
1866 | *addr = nbr_nbma->addr; | |
1867 | return nbr_nbma; | |
1868 | } | |
1869 | else if (ntohl (nbr_nbma->addr.s_addr) > ntohl (addr->s_addr)) | |
1870 | { | |
1871 | *addr = nbr_nbma->addr; | |
1872 | return nbr_nbma; | |
1873 | } | |
1874 | } | |
1875 | #endif | |
d62a17ae | 1876 | return NULL; |
718e3744 | 1877 | } |
1878 | ||
d62a17ae | 1879 | int ospf_nbr_nbma_set(struct ospf *ospf, struct in_addr nbr_addr) |
718e3744 | 1880 | { |
d62a17ae | 1881 | struct ospf_nbr_nbma *nbr_nbma; |
1882 | struct ospf_interface *oi; | |
1883 | struct prefix_ipv4 p; | |
1884 | struct route_node *rn; | |
1885 | struct listnode *node; | |
718e3744 | 1886 | |
d62a17ae | 1887 | nbr_nbma = ospf_nbr_nbma_lookup(ospf, nbr_addr); |
1888 | if (nbr_nbma) | |
1889 | return 0; | |
718e3744 | 1890 | |
d62a17ae | 1891 | nbr_nbma = ospf_nbr_nbma_new(); |
1892 | nbr_nbma->addr = nbr_addr; | |
718e3744 | 1893 | |
d62a17ae | 1894 | p.family = AF_INET; |
1895 | p.prefix = nbr_addr; | |
1896 | p.prefixlen = IPV4_MAX_BITLEN; | |
718e3744 | 1897 | |
d62a17ae | 1898 | rn = route_node_get(ospf->nbr_nbma, (struct prefix *)&p); |
1899 | if (rn->info) | |
1900 | route_unlock_node(rn); | |
1901 | rn->info = nbr_nbma; | |
718e3744 | 1902 | |
d62a17ae | 1903 | for (ALL_LIST_ELEMENTS_RO(ospf->oiflist, node, oi)) { |
1904 | if (oi->type == OSPF_IFTYPE_NBMA) | |
1905 | if (prefix_match(oi->address, (struct prefix *)&p)) { | |
1906 | ospf_nbr_nbma_add(nbr_nbma, oi); | |
1907 | break; | |
1908 | } | |
1909 | } | |
718e3744 | 1910 | |
d62a17ae | 1911 | return 1; |
718e3744 | 1912 | } |
1913 | ||
d62a17ae | 1914 | int ospf_nbr_nbma_unset(struct ospf *ospf, struct in_addr nbr_addr) |
718e3744 | 1915 | { |
d62a17ae | 1916 | struct ospf_nbr_nbma *nbr_nbma; |
718e3744 | 1917 | |
d62a17ae | 1918 | nbr_nbma = ospf_nbr_nbma_lookup(ospf, nbr_addr); |
1919 | if (nbr_nbma == NULL) | |
1920 | return 0; | |
718e3744 | 1921 | |
d62a17ae | 1922 | ospf_nbr_nbma_down(nbr_nbma); |
1923 | ospf_nbr_nbma_delete(ospf, nbr_nbma); | |
718e3744 | 1924 | |
d62a17ae | 1925 | return 1; |
718e3744 | 1926 | } |
1927 | ||
d62a17ae | 1928 | int ospf_nbr_nbma_priority_set(struct ospf *ospf, struct in_addr nbr_addr, |
d7c0a89a | 1929 | uint8_t priority) |
718e3744 | 1930 | { |
d62a17ae | 1931 | struct ospf_nbr_nbma *nbr_nbma; |
718e3744 | 1932 | |
d62a17ae | 1933 | nbr_nbma = ospf_nbr_nbma_lookup(ospf, nbr_addr); |
1934 | if (nbr_nbma == NULL) | |
1935 | return 0; | |
718e3744 | 1936 | |
d62a17ae | 1937 | if (nbr_nbma->priority != priority) |
1938 | nbr_nbma->priority = priority; | |
718e3744 | 1939 | |
d62a17ae | 1940 | return 1; |
718e3744 | 1941 | } |
1942 | ||
d62a17ae | 1943 | int ospf_nbr_nbma_priority_unset(struct ospf *ospf, struct in_addr nbr_addr) |
718e3744 | 1944 | { |
d62a17ae | 1945 | struct ospf_nbr_nbma *nbr_nbma; |
718e3744 | 1946 | |
d62a17ae | 1947 | nbr_nbma = ospf_nbr_nbma_lookup(ospf, nbr_addr); |
1948 | if (nbr_nbma == NULL) | |
1949 | return 0; | |
718e3744 | 1950 | |
d62a17ae | 1951 | if (nbr_nbma != OSPF_NEIGHBOR_PRIORITY_DEFAULT) |
1952 | nbr_nbma->priority = OSPF_NEIGHBOR_PRIORITY_DEFAULT; | |
718e3744 | 1953 | |
d62a17ae | 1954 | return 1; |
718e3744 | 1955 | } |
1956 | ||
d62a17ae | 1957 | int ospf_nbr_nbma_poll_interval_set(struct ospf *ospf, struct in_addr nbr_addr, |
1958 | unsigned int interval) | |
718e3744 | 1959 | { |
d62a17ae | 1960 | struct ospf_nbr_nbma *nbr_nbma; |
718e3744 | 1961 | |
d62a17ae | 1962 | nbr_nbma = ospf_nbr_nbma_lookup(ospf, nbr_addr); |
1963 | if (nbr_nbma == NULL) | |
1964 | return 0; | |
718e3744 | 1965 | |
d62a17ae | 1966 | if (nbr_nbma->v_poll != interval) { |
1967 | nbr_nbma->v_poll = interval; | |
1968 | if (nbr_nbma->oi && ospf_if_is_up(nbr_nbma->oi)) { | |
1969 | OSPF_TIMER_OFF(nbr_nbma->t_poll); | |
1970 | OSPF_POLL_TIMER_ON(nbr_nbma->t_poll, ospf_poll_timer, | |
1971 | nbr_nbma->v_poll); | |
1972 | } | |
718e3744 | 1973 | } |
718e3744 | 1974 | |
d62a17ae | 1975 | return 1; |
718e3744 | 1976 | } |
1977 | ||
d62a17ae | 1978 | int ospf_nbr_nbma_poll_interval_unset(struct ospf *ospf, struct in_addr addr) |
718e3744 | 1979 | { |
d62a17ae | 1980 | struct ospf_nbr_nbma *nbr_nbma; |
718e3744 | 1981 | |
d62a17ae | 1982 | nbr_nbma = ospf_nbr_nbma_lookup(ospf, addr); |
1983 | if (nbr_nbma == NULL) | |
1984 | return 0; | |
718e3744 | 1985 | |
d62a17ae | 1986 | if (nbr_nbma->v_poll != OSPF_POLL_INTERVAL_DEFAULT) |
1987 | nbr_nbma->v_poll = OSPF_POLL_INTERVAL_DEFAULT; | |
718e3744 | 1988 | |
d62a17ae | 1989 | return 1; |
718e3744 | 1990 | } |
1991 | ||
d62a17ae | 1992 | void ospf_master_init(struct thread_master *master) |
718e3744 | 1993 | { |
d62a17ae | 1994 | memset(&ospf_master, 0, sizeof(struct ospf_master)); |
020709f9 | 1995 | |
d62a17ae | 1996 | om = &ospf_master; |
1997 | om->ospf = list_new(); | |
1998 | om->master = master; | |
020709f9 | 1999 | } |
b5a8894d CS |
2000 | |
2001 | /* Link OSPF instance to VRF. */ | |
2002 | void ospf_vrf_link(struct ospf *ospf, struct vrf *vrf) | |
2003 | { | |
2004 | ospf->vrf_id = vrf->vrf_id; | |
2005 | if (vrf->info != (void *)ospf) | |
2006 | vrf->info = (void *)ospf; | |
2007 | } | |
2008 | ||
2009 | /* Unlink OSPF instance from VRF. */ | |
2010 | void ospf_vrf_unlink(struct ospf *ospf, struct vrf *vrf) | |
2011 | { | |
2012 | if (vrf->info == (void *)ospf) | |
2013 | vrf->info = NULL; | |
2014 | ospf->vrf_id = VRF_UNKNOWN; | |
2015 | } | |
2016 | ||
2017 | /* This is hook function for vrf create called as part of vrf_init */ | |
2018 | static int ospf_vrf_new(struct vrf *vrf) | |
2019 | { | |
2020 | if (IS_DEBUG_OSPF_EVENT) | |
fe3da9e7 | 2021 | zlog_debug("%s: VRF Created: %s(%u)", __PRETTY_FUNCTION__, |
b5a8894d CS |
2022 | vrf->name, vrf->vrf_id); |
2023 | ||
2024 | return 0; | |
2025 | } | |
2026 | ||
2027 | /* This is hook function for vrf delete call as part of vrf_init */ | |
2028 | static int ospf_vrf_delete(struct vrf *vrf) | |
2029 | { | |
2030 | if (IS_DEBUG_OSPF_EVENT) | |
fe3da9e7 | 2031 | zlog_debug("%s: VRF Deletion: %s(%u)", __PRETTY_FUNCTION__, |
b5a8894d CS |
2032 | vrf->name, vrf->vrf_id); |
2033 | ||
2034 | return 0; | |
2035 | } | |
2036 | ||
3d9f7302 PZ |
2037 | static void ospf_set_redist_vrf_bitmaps(struct ospf *ospf) |
2038 | { | |
2039 | int type; | |
2040 | struct list *red_list; | |
2041 | ||
2042 | for (type = 0; type < ZEBRA_ROUTE_MAX; type++) { | |
2043 | red_list = ospf->redist[type]; | |
2044 | if (!red_list) | |
2045 | continue; | |
2046 | if (IS_DEBUG_OSPF_EVENT) | |
2047 | zlog_debug( | |
2048 | "%s: setting redist vrf %d bitmap for type %d", | |
2049 | __func__, ospf->vrf_id, type); | |
2050 | vrf_bitmap_set(zclient->redist[AFI_IP][type], ospf->vrf_id); | |
2051 | } | |
2052 | } | |
2053 | ||
b5a8894d CS |
2054 | /* Enable OSPF VRF instance */ |
2055 | static int ospf_vrf_enable(struct vrf *vrf) | |
2056 | { | |
2057 | struct ospf *ospf = NULL; | |
7d206035 | 2058 | vrf_id_t old_vrf_id; |
3c0eb8fa | 2059 | int ret = 0; |
b5a8894d CS |
2060 | |
2061 | if (IS_DEBUG_OSPF_EVENT) | |
996c9314 LB |
2062 | zlog_debug("%s: VRF %s id %u enabled", __PRETTY_FUNCTION__, |
2063 | vrf->name, vrf->vrf_id); | |
b5a8894d CS |
2064 | |
2065 | ospf = ospf_lookup_by_name(vrf->name); | |
2066 | if (ospf) { | |
6895b354 PG |
2067 | if (ospf->name && strmatch(vrf->name, VRF_DEFAULT_NAME)) { |
2068 | XFREE(MTYPE_OSPF_TOP, ospf->name); | |
2069 | ospf->name = NULL; | |
2070 | } | |
b5a8894d CS |
2071 | old_vrf_id = ospf->vrf_id; |
2072 | /* We have instance configured, link to VRF and make it "up". */ | |
2073 | ospf_vrf_link(ospf, vrf); | |
2074 | if (IS_DEBUG_OSPF_EVENT) | |
996c9314 LB |
2075 | zlog_debug( |
2076 | "%s: ospf linked to vrf %s vrf_id %u (old id %u)", | |
2077 | __PRETTY_FUNCTION__, vrf->name, ospf->vrf_id, | |
2078 | old_vrf_id); | |
b5a8894d CS |
2079 | |
2080 | if (old_vrf_id != ospf->vrf_id) { | |
0cf6db21 | 2081 | frr_with_privs(&ospfd_privs) { |
6bb30c2c DL |
2082 | /* stop zebra redist to us for old vrf */ |
2083 | zclient_send_dereg_requests(zclient, | |
2084 | old_vrf_id); | |
3d9f7302 | 2085 | |
6bb30c2c | 2086 | ospf_set_redist_vrf_bitmaps(ospf); |
3d9f7302 | 2087 | |
6bb30c2c DL |
2088 | /* start zebra redist to us for new vrf */ |
2089 | ospf_zebra_vrf_register(ospf); | |
313d7993 | 2090 | |
6bb30c2c DL |
2091 | ret = ospf_sock_init(ospf); |
2092 | } | |
3c0eb8fa PG |
2093 | if (ret < 0 || ospf->fd <= 0) |
2094 | return 0; | |
996c9314 LB |
2095 | thread_add_read(master, ospf_read, ospf, ospf->fd, |
2096 | &ospf->t_read); | |
b5a8894d CS |
2097 | ospf->oi_running = 1; |
2098 | ospf_router_id_update(ospf); | |
2099 | } | |
2100 | } | |
2101 | ||
2102 | return 0; | |
2103 | } | |
2104 | ||
2105 | /* Disable OSPF VRF instance */ | |
2106 | static int ospf_vrf_disable(struct vrf *vrf) | |
2107 | { | |
2108 | struct ospf *ospf = NULL; | |
2109 | vrf_id_t old_vrf_id = VRF_UNKNOWN; | |
2110 | ||
2111 | if (vrf->vrf_id == VRF_DEFAULT) | |
2112 | return 0; | |
2113 | ||
2114 | if (IS_DEBUG_OSPF_EVENT) | |
996c9314 LB |
2115 | zlog_debug("%s: VRF %s id %d disabled.", __PRETTY_FUNCTION__, |
2116 | vrf->name, vrf->vrf_id); | |
b5a8894d CS |
2117 | |
2118 | ospf = ospf_lookup_by_name(vrf->name); | |
2119 | if (ospf) { | |
2120 | old_vrf_id = ospf->vrf_id; | |
2121 | ||
2122 | /* We have instance configured, unlink | |
2123 | * from VRF and make it "down". | |
2124 | */ | |
2125 | ospf_vrf_unlink(ospf, vrf); | |
2126 | ospf->oi_running = 0; | |
2127 | if (IS_DEBUG_OSPF_EVENT) | |
2128 | zlog_debug("%s: ospf old_vrf_id %d unlinked", | |
996c9314 | 2129 | __PRETTY_FUNCTION__, old_vrf_id); |
3c0eb8fa PG |
2130 | thread_cancel(ospf->t_read); |
2131 | close(ospf->fd); | |
2132 | ospf->fd = -1; | |
b5a8894d CS |
2133 | } |
2134 | ||
2135 | /* Note: This is a callback, the VRF will be deleted by the caller. */ | |
2136 | return 0; | |
2137 | } | |
2138 | ||
2139 | void ospf_vrf_init(void) | |
2140 | { | |
996c9314 | 2141 | vrf_init(ospf_vrf_new, ospf_vrf_enable, ospf_vrf_disable, |
b5c056fa | 2142 | ospf_vrf_delete, ospf_vrf_enable); |
b5a8894d CS |
2143 | } |
2144 | ||
2145 | void ospf_vrf_terminate(void) | |
2146 | { | |
2147 | vrf_terminate(); | |
2148 | } | |
2149 | ||
2150 | const char *ospf_vrf_id_to_name(vrf_id_t vrf_id) | |
2151 | { | |
2152 | struct vrf *vrf = vrf_lookup_by_id(vrf_id); | |
2153 | ||
2154 | return vrf ? vrf->name : "NIL"; | |
2155 | } | |
88b6b28e DS |
2156 | |
2157 | const char *ospf_get_name(const struct ospf *ospf) | |
2158 | { | |
2159 | if (ospf->name) | |
2160 | return ospf->name; | |
2161 | else | |
2162 | return VRF_DEFAULT_NAME; | |
2163 | } |