]>
Commit | Line | Data |
---|---|---|
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; | |
94 | int type; | |
2c19a6ec | 95 | |
d62a17ae | 96 | if (!ospf->oi_running) { |
97 | if (IS_DEBUG_OSPF_EVENT) | |
98 | zlog_debug( | |
99 | "Router ospf not configured -- Router-ID update postponed"); | |
100 | return; | |
25a346eb | 101 | } |
718e3744 | 102 | |
d62a17ae | 103 | if (IS_DEBUG_OSPF_EVENT) |
104 | zlog_debug("Router-ID[OLD:%s]: Update", | |
105 | inet_ntoa(ospf->router_id)); | |
106 | ||
107 | router_id_old = ospf->router_id; | |
108 | ||
109 | /* Select the router ID based on these priorities: | |
110 | 1. Statically assigned router ID is always the first choice. | |
111 | 2. If there is no statically assigned router ID, then try to stick | |
112 | with the most recent value, since changing router ID's is very | |
113 | disruptive. | |
114 | 3. Last choice: just go with whatever the zebra daemon recommends. | |
115 | */ | |
116 | if (ospf->router_id_static.s_addr != 0) | |
117 | router_id = ospf->router_id_static; | |
118 | else if (ospf->router_id.s_addr != 0) | |
119 | router_id = ospf->router_id; | |
120 | else | |
6021c6c0 | 121 | router_id = ospf->router_id_zebra; |
d62a17ae | 122 | |
b5a8894d CS |
123 | if (IS_DEBUG_OSPF_EVENT) |
124 | zlog_debug("Router-ID[OLD:%s]: Update to %s", | |
996c9314 | 125 | inet_ntoa(ospf->router_id), inet_ntoa(router_id)); |
d62a17ae | 126 | |
127 | if (!IPV4_ADDR_SAME(&router_id_old, &router_id)) { | |
128 | ||
129 | for (ALL_LIST_ELEMENTS_RO(ospf->oiflist, node, oi)) { | |
130 | /* Some nbrs are identified by router_id, these needs | |
131 | * to be rebuilt. Possible optimization would be to do | |
132 | * oi->nbr_self->router_id = router_id for | |
133 | * !(virtual | ptop) links | |
134 | */ | |
135 | ospf_nbr_self_reset(oi, router_id); | |
136 | } | |
137 | ||
138 | /* If AS-external-LSA is queued, then flush those LSAs. */ | |
139 | if (router_id_old.s_addr == 0 && ospf->external_origin) { | |
140 | /* Originate each redistributed external route. */ | |
141 | for (type = 0; type < ZEBRA_ROUTE_MAX; type++) | |
142 | if (ospf->external_origin & (1 << type)) | |
143 | thread_add_event( | |
144 | master, | |
145 | ospf_external_lsa_originate_timer, | |
146 | ospf, type, NULL); | |
147 | /* Originate Deafult. */ | |
148 | if (ospf->external_origin & (1 << ZEBRA_ROUTE_MAX)) | |
149 | thread_add_event(master, | |
150 | ospf_default_originate_timer, | |
151 | ospf, 0, NULL); | |
152 | ||
153 | ospf->external_origin = 0; | |
154 | } | |
155 | ||
156 | /* Flush (inline) all external LSAs based on the OSPF_LSA_SELF | |
157 | * flag */ | |
158 | if (ospf->lsdb) { | |
159 | struct route_node *rn; | |
160 | struct ospf_lsa *lsa; | |
161 | ||
996c9314 | 162 | LSDB_LOOP (EXTERNAL_LSDB(ospf), rn, lsa) |
044506e7 DS |
163 | if (IS_LSA_SELF(lsa)) |
164 | ospf_lsa_flush_schedule(ospf, lsa); | |
d62a17ae | 165 | } |
166 | ||
167 | ospf->router_id = router_id; | |
168 | if (IS_DEBUG_OSPF_EVENT) | |
169 | zlog_debug("Router-ID[NEW:%s]: Update", | |
170 | inet_ntoa(ospf->router_id)); | |
171 | ||
172 | /* Flush (inline) all external LSAs which now match the new | |
173 | router-id, | |
0437e105 | 174 | need to adjust the OSPF_LSA_SELF flag, so the flush doesn't |
d62a17ae | 175 | hit |
176 | asserts in ospf_refresher_unregister_lsa(). This step is | |
177 | needed | |
178 | because the current quagga code does look-up for | |
179 | self-originated LSAs | |
180 | based on the self router-id alone but expects OSPF_LSA_SELF | |
181 | to be | |
182 | properly set */ | |
183 | if (ospf->lsdb) { | |
184 | struct route_node *rn; | |
185 | struct ospf_lsa *lsa; | |
186 | ||
044506e7 | 187 | LSDB_LOOP (EXTERNAL_LSDB(ospf), rn, lsa) { |
d62a17ae | 188 | /* AdvRouter and Router ID is the same. */ |
189 | if (IPV4_ADDR_SAME(&lsa->data->adv_router, | |
190 | &ospf->router_id)) { | |
191 | SET_FLAG(lsa->flags, | |
192 | OSPF_LSA_SELF_CHECKED); | |
193 | SET_FLAG(lsa->flags, OSPF_LSA_SELF); | |
194 | ospf_lsa_flush_schedule(ospf, lsa); | |
195 | } | |
196 | } | |
197 | } | |
198 | ||
199 | /* Originate each redistributed external route. */ | |
200 | for (type = 0; type < ZEBRA_ROUTE_MAX; type++) | |
201 | thread_add_event(master, | |
202 | ospf_external_lsa_originate_timer, | |
203 | ospf, type, NULL); | |
204 | thread_add_event(master, ospf_default_originate_timer, ospf, 0, | |
205 | NULL); | |
206 | ||
207 | /* update router-lsa's for each area */ | |
208 | ospf_router_lsa_update(ospf); | |
209 | ||
210 | /* update ospf_interface's */ | |
451fda4f | 211 | FOR_ALL_INTERFACES (vrf, ifp) |
d62a17ae | 212 | ospf_if_update(ospf, ifp); |
718e3744 | 213 | } |
718e3744 | 214 | } |
6b0655a2 | 215 | |
718e3744 | 216 | /* For OSPF area sort by area id. */ |
d62a17ae | 217 | static int ospf_area_id_cmp(struct ospf_area *a1, struct ospf_area *a2) |
718e3744 | 218 | { |
d62a17ae | 219 | if (ntohl(a1->area_id.s_addr) > ntohl(a2->area_id.s_addr)) |
220 | return 1; | |
221 | if (ntohl(a1->area_id.s_addr) < ntohl(a2->area_id.s_addr)) | |
222 | return -1; | |
223 | return 0; | |
718e3744 | 224 | } |
225 | ||
226 | /* Allocate new ospf structure. */ | |
d7c0a89a | 227 | static struct ospf *ospf_new(unsigned short instance, const char *name) |
718e3744 | 228 | { |
d62a17ae | 229 | int i; |
b5a8894d | 230 | struct vrf *vrf = NULL; |
718e3744 | 231 | |
d62a17ae | 232 | struct ospf *new = XCALLOC(MTYPE_OSPF_TOP, sizeof(struct ospf)); |
718e3744 | 233 | |
d62a17ae | 234 | new->instance = instance; |
235 | new->router_id.s_addr = htonl(0); | |
236 | new->router_id_static.s_addr = htonl(0); | |
14406e8e DS |
237 | if (name) { |
238 | vrf = vrf_lookup_by_name(name); | |
239 | if (vrf) | |
240 | new->vrf_id = vrf->vrf_id; | |
241 | else | |
242 | new->vrf_id = VRF_UNKNOWN; | |
b5a8894d CS |
243 | /* Freed in ospf_finish_final */ |
244 | new->name = XSTRDUP(MTYPE_OSPF_TOP, name); | |
b5a8894d | 245 | if (IS_DEBUG_OSPF_EVENT) |
996c9314 LB |
246 | zlog_debug( |
247 | "%s: Create new ospf instance with vrf_name %s vrf_id %u", | |
248 | __PRETTY_FUNCTION__, name, new->vrf_id); | |
b5a8894d CS |
249 | } else { |
250 | new->vrf_id = VRF_DEFAULT; | |
251 | vrf = vrf_lookup_by_id(VRF_DEFAULT); | |
b5a8894d | 252 | } |
a2d7fdfe | 253 | |
254 | if (vrf) | |
255 | ospf_vrf_link(new, vrf); | |
256 | ||
b5a8894d CS |
257 | ospf_zebra_vrf_register(new); |
258 | ||
d62a17ae | 259 | new->abr_type = OSPF_ABR_DEFAULT; |
260 | new->oiflist = list_new(); | |
261 | new->vlinks = list_new(); | |
262 | new->areas = list_new(); | |
263 | new->areas->cmp = (int (*)(void *, void *))ospf_area_id_cmp; | |
264 | new->networks = route_table_init(); | |
265 | new->nbr_nbma = route_table_init(); | |
718e3744 | 266 | |
d62a17ae | 267 | new->lsdb = ospf_lsdb_new(); |
718e3744 | 268 | |
d62a17ae | 269 | new->default_originate = DEFAULT_ORIGINATE_NONE; |
718e3744 | 270 | |
d62a17ae | 271 | new->passive_interface_default = OSPF_IF_ACTIVE; |
4ba4fc85 | 272 | |
d62a17ae | 273 | new->new_external_route = route_table_init(); |
274 | new->old_external_route = route_table_init(); | |
275 | new->external_lsas = route_table_init(); | |
276 | ||
277 | new->stub_router_startup_time = OSPF_STUB_ROUTER_UNCONFIGURED; | |
278 | new->stub_router_shutdown_time = OSPF_STUB_ROUTER_UNCONFIGURED; | |
279 | new->stub_router_admin_set = OSPF_STUB_ROUTER_ADMINISTRATIVE_UNSET; | |
280 | ||
281 | /* Distribute parameter init. */ | |
282 | for (i = 0; i <= ZEBRA_ROUTE_MAX; i++) { | |
283 | new->dtag[i] = 0; | |
284 | } | |
285 | new->default_metric = -1; | |
286 | new->ref_bandwidth = OSPF_DEFAULT_REF_BANDWIDTH; | |
287 | ||
288 | /* LSA timers */ | |
289 | new->min_ls_interval = OSPF_MIN_LS_INTERVAL; | |
290 | new->min_ls_arrival = OSPF_MIN_LS_ARRIVAL; | |
291 | ||
292 | /* SPF timer value init. */ | |
293 | new->spf_delay = OSPF_SPF_DELAY_DEFAULT; | |
294 | new->spf_holdtime = OSPF_SPF_HOLDTIME_DEFAULT; | |
295 | new->spf_max_holdtime = OSPF_SPF_MAX_HOLDTIME_DEFAULT; | |
296 | new->spf_hold_multiplier = 1; | |
297 | ||
298 | /* MaxAge init. */ | |
299 | new->maxage_delay = OSPF_LSA_MAXAGE_REMOVE_DELAY_DEFAULT; | |
300 | new->maxage_lsa = route_table_init(); | |
301 | new->t_maxage_walker = NULL; | |
302 | thread_add_timer(master, ospf_lsa_maxage_walker, new, | |
303 | OSPF_LSA_MAXAGE_CHECK_INTERVAL, &new->t_maxage_walker); | |
304 | ||
305 | /* Distance table init. */ | |
306 | new->distance_table = route_table_init(); | |
307 | ||
308 | new->lsa_refresh_queue.index = 0; | |
309 | new->lsa_refresh_interval = OSPF_LSA_REFRESH_INTERVAL_DEFAULT; | |
310 | new->t_lsa_refresher = NULL; | |
311 | thread_add_timer(master, ospf_lsa_refresh_walker, new, | |
312 | new->lsa_refresh_interval, &new->t_lsa_refresher); | |
313 | new->lsa_refresher_started = monotime(NULL); | |
314 | ||
266469eb DS |
315 | new->ibuf = stream_new(OSPF_MAX_PACKET_SIZE + 1); |
316 | ||
d62a17ae | 317 | new->t_read = NULL; |
d62a17ae | 318 | new->oi_write_q = list_new(); |
319 | new->write_oi_count = OSPF_WRITE_INTERFACE_COUNT_DEFAULT; | |
320 | ||
321 | /* Enable "log-adjacency-changes" */ | |
8efe88ea | 322 | #if DFLT_OSPF_LOG_ADJACENCY_CHANGES |
d62a17ae | 323 | SET_FLAG(new->config, OSPF_LOG_ADJACENCY_CHANGES); |
8efe88ea | 324 | #endif |
3e7c8d04 | 325 | |
d62a17ae | 326 | QOBJ_REG(new, ospf); |
ae19c240 | 327 | |
3c0eb8fa PG |
328 | new->fd = -1; |
329 | if ((ospf_sock_init(new)) < 0) { | |
330 | if (new->vrf_id != VRF_UNKNOWN) | |
ade6974d | 331 | flog_err( |
450971aa | 332 | EC_LIB_SOCKET, |
ade6974d QY |
333 | "%s: ospf_sock_init is unable to open a socket", |
334 | __func__); | |
3c0eb8fa PG |
335 | return new; |
336 | } | |
337 | thread_add_read(master, ospf_read, new, new->fd, &new->t_read); | |
338 | ||
d62a17ae | 339 | return new; |
718e3744 | 340 | } |
341 | ||
d7c0a89a | 342 | struct ospf *ospf_lookup_instance(unsigned short instance) |
7c8ff89e | 343 | { |
d62a17ae | 344 | struct ospf *ospf; |
345 | struct listnode *node, *nnode; | |
7c8ff89e | 346 | |
d62a17ae | 347 | if (listcount(om->ospf) == 0) |
348 | return NULL; | |
7c8ff89e | 349 | |
d62a17ae | 350 | for (ALL_LIST_ELEMENTS(om->ospf, node, nnode, ospf)) |
351 | if ((ospf->instance == 0 && instance == 0) | |
352 | || (ospf->instance && instance | |
353 | && ospf->instance == instance)) | |
354 | return ospf; | |
7c8ff89e | 355 | |
d62a17ae | 356 | return NULL; |
7c8ff89e DS |
357 | } |
358 | ||
d62a17ae | 359 | static int ospf_is_ready(struct ospf *ospf) |
52c62ab8 | 360 | { |
d62a17ae | 361 | /* OSPF must be on and Router-ID must be configured. */ |
362 | if (!ospf || ospf->router_id.s_addr == 0) | |
363 | return 0; | |
364 | ||
365 | return 1; | |
52c62ab8 JAG |
366 | } |
367 | ||
d62a17ae | 368 | static void ospf_add(struct ospf *ospf) |
020709f9 | 369 | { |
d62a17ae | 370 | listnode_add(om->ospf, ospf); |
020709f9 | 371 | } |
718e3744 | 372 | |
d62a17ae | 373 | static void ospf_delete(struct ospf *ospf) |
020709f9 | 374 | { |
d62a17ae | 375 | listnode_delete(om->ospf, ospf); |
020709f9 | 376 | } |
68980084 | 377 | |
d7c0a89a | 378 | struct ospf *ospf_lookup_by_inst_name(unsigned short instance, const char *name) |
b5a8894d CS |
379 | { |
380 | struct ospf *ospf = NULL; | |
381 | struct listnode *node, *nnode; | |
382 | ||
6895b354 PG |
383 | if (name == NULL || strmatch(name, VRF_DEFAULT_NAME)) |
384 | return ospf_lookup_by_vrf_id(VRF_DEFAULT); | |
385 | ||
b5a8894d | 386 | for (ALL_LIST_ELEMENTS(om->ospf, node, nnode, ospf)) { |
996c9314 LB |
387 | if ((ospf->instance == instance) |
388 | && ((ospf->name == NULL && name == NULL) | |
389 | || (ospf->name && name | |
390 | && strcmp(ospf->name, name) == 0))) | |
b5a8894d CS |
391 | return ospf; |
392 | } | |
393 | return NULL; | |
394 | } | |
395 | ||
d7c0a89a | 396 | struct ospf *ospf_get(unsigned short instance, const char *name) |
020709f9 | 397 | { |
d62a17ae | 398 | struct ospf *ospf; |
020709f9 | 399 | |
b5a8894d CS |
400 | /* vrf name provided call inst and name based api |
401 | * in case of no name pass default ospf instance */ | |
402 | if (name) | |
403 | ospf = ospf_lookup_by_inst_name(instance, name); | |
404 | else | |
405 | ospf = ospf_lookup_by_vrf_id(VRF_DEFAULT); | |
406 | ||
d62a17ae | 407 | if (ospf == NULL) { |
b5a8894d | 408 | ospf = ospf_new(instance, name); |
d62a17ae | 409 | ospf_add(ospf); |
7c8ff89e | 410 | |
d62a17ae | 411 | if (ospf->router_id_static.s_addr == 0) |
412 | ospf_router_id_update(ospf); | |
7c8ff89e | 413 | |
d62a17ae | 414 | ospf_opaque_type11_lsa_init(ospf); |
415 | } | |
7c8ff89e | 416 | |
d62a17ae | 417 | return ospf; |
7c8ff89e DS |
418 | } |
419 | ||
d7c0a89a | 420 | struct ospf *ospf_get_instance(unsigned short instance) |
7c8ff89e | 421 | { |
d62a17ae | 422 | struct ospf *ospf; |
7c8ff89e | 423 | |
d62a17ae | 424 | ospf = ospf_lookup_instance(instance); |
425 | if (ospf == NULL) { | |
b5a8894d | 426 | ospf = ospf_new(instance, NULL /* VRF_DEFAULT*/); |
d62a17ae | 427 | ospf_add(ospf); |
020709f9 | 428 | |
b5a8894d CS |
429 | if (ospf->router_id_static.s_addr == 0) { |
430 | if (vrf_lookup_by_id(ospf->vrf_id)) | |
431 | ospf_router_id_update(ospf); | |
432 | else { | |
433 | if (IS_DEBUG_OSPF_EVENT) | |
996c9314 LB |
434 | zlog_debug( |
435 | "%s: ospf VRF (id %d) is not active yet, skip router id update", | |
436 | __PRETTY_FUNCTION__, | |
437 | ospf->vrf_id); | |
b5a8894d | 438 | } |
d62a17ae | 439 | ospf_router_id_update(ospf); |
b5a8894d | 440 | } |
718e3744 | 441 | |
d62a17ae | 442 | ospf_opaque_type11_lsa_init(ospf); |
443 | } | |
68980084 | 444 | |
d62a17ae | 445 | return ospf; |
718e3744 | 446 | } |
6b0655a2 | 447 | |
b5a8894d CS |
448 | struct ospf *ospf_lookup_by_vrf_id(vrf_id_t vrf_id) |
449 | { | |
450 | struct vrf *vrf = NULL; | |
451 | ||
452 | vrf = vrf_lookup_by_id(vrf_id); | |
453 | if (!vrf) | |
454 | return NULL; | |
455 | return (vrf->info) ? (struct ospf *)vrf->info : NULL; | |
b5a8894d CS |
456 | } |
457 | ||
43b8d1d8 CS |
458 | /* It should only be used when processing incoming info update from zebra. |
459 | * Other situations, it is not sufficient to lookup the ospf instance by | |
460 | * vrf_name only without using the instance number. | |
461 | */ | |
462 | static struct ospf *ospf_lookup_by_name(const char *vrf_name) | |
b5a8894d CS |
463 | { |
464 | struct ospf *ospf = NULL; | |
465 | struct listnode *node, *nnode; | |
466 | ||
467 | for (ALL_LIST_ELEMENTS(om->ospf, node, nnode, ospf)) | |
43b8d1d8 | 468 | if ((ospf->name == NULL && vrf_name == NULL) |
996c9314 LB |
469 | || (ospf->name && vrf_name |
470 | && strcmp(ospf->name, vrf_name) == 0)) | |
b5a8894d CS |
471 | return ospf; |
472 | return NULL; | |
473 | } | |
474 | ||
c9c93d50 | 475 | /* Handle the second half of deferred shutdown. This is called either |
476 | * from the deferred-shutdown timer thread, or directly through | |
477 | * ospf_deferred_shutdown_check. | |
88d6cf37 | 478 | * |
479 | * Function is to cleanup G-R state, if required then call ospf_finish_final | |
480 | * to complete shutdown of this ospf instance. Possibly exit if the | |
481 | * whole process is being shutdown and this was the last OSPF instance. | |
482 | */ | |
d62a17ae | 483 | static void ospf_deferred_shutdown_finish(struct ospf *ospf) |
484 | { | |
485 | ospf->stub_router_shutdown_time = OSPF_STUB_ROUTER_UNCONFIGURED; | |
486 | OSPF_TIMER_OFF(ospf->t_deferred_shutdown); | |
487 | ||
488 | ospf_finish_final(ospf); | |
489 | ||
490 | /* *ospf is now invalid */ | |
88d6cf37 | 491 | |
d62a17ae | 492 | /* ospfd being shut-down? If so, was this the last ospf instance? */ |
493 | if (CHECK_FLAG(om->options, OSPF_MASTER_SHUTDOWN) | |
494 | && (listcount(om->ospf) == 0)) { | |
495 | exit(0); | |
496 | } | |
497 | ||
498 | return; | |
88d6cf37 | 499 | } |
500 | ||
501 | /* Timer thread for G-R */ | |
d62a17ae | 502 | static int ospf_deferred_shutdown_timer(struct thread *t) |
88d6cf37 | 503 | { |
d62a17ae | 504 | struct ospf *ospf = THREAD_ARG(t); |
505 | ||
506 | ospf_deferred_shutdown_finish(ospf); | |
507 | ||
508 | return 0; | |
88d6cf37 | 509 | } |
510 | ||
c9c93d50 | 511 | /* Check whether deferred-shutdown must be scheduled, otherwise call |
88d6cf37 | 512 | * down directly into second-half of instance shutdown. |
513 | */ | |
d62a17ae | 514 | static void ospf_deferred_shutdown_check(struct ospf *ospf) |
515 | { | |
516 | unsigned long timeout; | |
517 | struct listnode *ln; | |
518 | struct ospf_area *area; | |
519 | ||
520 | /* deferred shutdown already running? */ | |
521 | if (ospf->t_deferred_shutdown) | |
522 | return; | |
523 | ||
524 | /* Should we try push out max-metric LSAs? */ | |
525 | if (ospf->stub_router_shutdown_time != OSPF_STUB_ROUTER_UNCONFIGURED) { | |
526 | for (ALL_LIST_ELEMENTS_RO(ospf->areas, ln, area)) { | |
527 | SET_FLAG(area->stub_router_state, | |
528 | OSPF_AREA_ADMIN_STUB_ROUTED); | |
529 | ||
530 | if (!CHECK_FLAG(area->stub_router_state, | |
531 | OSPF_AREA_IS_STUB_ROUTED)) | |
532 | ospf_router_lsa_update_area(area); | |
533 | } | |
534 | timeout = ospf->stub_router_shutdown_time; | |
535 | } else { | |
536 | /* No timer needed */ | |
537 | ospf_deferred_shutdown_finish(ospf); | |
538 | return; | |
539 | } | |
540 | ||
541 | OSPF_TIMER_ON(ospf->t_deferred_shutdown, ospf_deferred_shutdown_timer, | |
542 | timeout); | |
543 | return; | |
88d6cf37 | 544 | } |
6b0655a2 | 545 | |
88d6cf37 | 546 | /* Shut down the entire process */ |
d62a17ae | 547 | void ospf_terminate(void) |
548 | { | |
549 | struct ospf *ospf; | |
550 | struct listnode *node, *nnode; | |
551 | ||
552 | /* shutdown already in progress */ | |
553 | if (CHECK_FLAG(om->options, OSPF_MASTER_SHUTDOWN)) | |
554 | return; | |
555 | ||
556 | SET_FLAG(om->options, OSPF_MASTER_SHUTDOWN); | |
557 | ||
558 | /* exit immediately if OSPF not actually running */ | |
559 | if (listcount(om->ospf) == 0) | |
560 | exit(0); | |
561 | ||
562 | bfd_gbl_exit(); | |
563 | for (ALL_LIST_ELEMENTS(om->ospf, node, nnode, ospf)) | |
564 | ospf_finish(ospf); | |
565 | ||
ded42248 | 566 | /* Cleanup route maps */ |
ded42248 CS |
567 | route_map_finish(); |
568 | ||
569 | /* reverse prefix_list_init */ | |
570 | prefix_list_add_hook(NULL); | |
571 | prefix_list_delete_hook(NULL); | |
572 | prefix_list_reset(); | |
573 | ||
574 | /* Cleanup vrf info */ | |
575 | ospf_vrf_terminate(); | |
576 | ||
d62a17ae | 577 | /* Deliberately go back up, hopefully to thread scheduler, as |
578 | * One or more ospf_finish()'s may have deferred shutdown to a timer | |
579 | * thread | |
580 | */ | |
581 | zclient_stop(zclient); | |
582 | zclient_free(zclient); | |
8879bd22 RW |
583 | |
584 | frr_fini(); | |
d62a17ae | 585 | } |
586 | ||
587 | void ospf_finish(struct ospf *ospf) | |
588 | { | |
589 | /* let deferred shutdown decide */ | |
590 | ospf_deferred_shutdown_check(ospf); | |
591 | ||
592 | /* if ospf_deferred_shutdown returns, then ospf_finish_final is | |
593 | * deferred to expiry of G-S timer thread. Return back up, hopefully | |
594 | * to thread scheduler. | |
595 | */ | |
596 | return; | |
88d6cf37 | 597 | } |
598 | ||
599 | /* Final cleanup of ospf instance */ | |
d62a17ae | 600 | static void ospf_finish_final(struct ospf *ospf) |
718e3744 | 601 | { |
f4e14fdb | 602 | struct vrf *vrf = vrf_lookup_by_id(ospf->vrf_id); |
d62a17ae | 603 | struct route_node *rn; |
604 | struct ospf_nbr_nbma *nbr_nbma; | |
605 | struct ospf_lsa *lsa; | |
606 | struct interface *ifp; | |
607 | struct ospf_interface *oi; | |
608 | struct ospf_area *area; | |
609 | struct ospf_vl_data *vl_data; | |
610 | struct listnode *node, *nnode; | |
611 | int i; | |
d7c0a89a | 612 | unsigned short instance = 0; |
7c8ff89e | 613 | |
d62a17ae | 614 | QOBJ_UNREG(ospf); |
7c8ff89e | 615 | |
d62a17ae | 616 | ospf_opaque_type11_lsa_term(ospf); |
953cde65 | 617 | |
bcf4475e OD |
618 | ospf_opaque_finish(); |
619 | ||
046460a1 | 620 | ospf_flush_self_originated_lsas_now(ospf); |
953cde65 | 621 | |
d62a17ae | 622 | /* Unregister redistribution */ |
623 | for (i = 0; i < ZEBRA_ROUTE_MAX; i++) { | |
624 | struct list *red_list; | |
625 | struct ospf_redist *red; | |
718e3744 | 626 | |
d62a17ae | 627 | red_list = ospf->redist[i]; |
628 | if (!red_list) | |
629 | continue; | |
718e3744 | 630 | |
d62a17ae | 631 | for (ALL_LIST_ELEMENTS(red_list, node, nnode, red)) |
632 | ospf_redistribute_unset(ospf, i, red->instance); | |
633 | } | |
634 | ospf_redistribute_default_unset(ospf); | |
718e3744 | 635 | |
d62a17ae | 636 | for (ALL_LIST_ELEMENTS(ospf->areas, node, nnode, area)) |
637 | ospf_remove_vls_through_area(ospf, area); | |
718e3744 | 638 | |
d62a17ae | 639 | for (ALL_LIST_ELEMENTS(ospf->vlinks, node, nnode, vl_data)) |
640 | ospf_vl_delete(ospf, vl_data); | |
718e3744 | 641 | |
6a154c88 | 642 | list_delete(&ospf->vlinks); |
718e3744 | 643 | |
d62a17ae | 644 | /* Remove any ospf interface config params */ |
451fda4f | 645 | FOR_ALL_INTERFACES (vrf, ifp) { |
d62a17ae | 646 | struct ospf_if_params *params; |
718e3744 | 647 | |
d62a17ae | 648 | params = IF_DEF_PARAMS(ifp); |
649 | if (OSPF_IF_PARAM_CONFIGURED(params, if_area)) | |
650 | UNSET_IF_PARAM(params, if_area); | |
718e3744 | 651 | } |
718e3744 | 652 | |
d62a17ae | 653 | /* Reset interface. */ |
654 | for (ALL_LIST_ELEMENTS(ospf->oiflist, node, nnode, oi)) | |
655 | ospf_if_free(oi); | |
6a154c88 | 656 | list_delete(&ospf->oiflist); |
718e3744 | 657 | |
b5a8894d CS |
658 | /* De-Register VRF */ |
659 | ospf_zebra_vrf_deregister(ospf); | |
660 | ||
d62a17ae | 661 | /* Clear static neighbors */ |
662 | for (rn = route_top(ospf->nbr_nbma); rn; rn = route_next(rn)) | |
663 | if ((nbr_nbma = rn->info)) { | |
664 | OSPF_POLL_TIMER_OFF(nbr_nbma->t_poll); | |
718e3744 | 665 | |
d62a17ae | 666 | if (nbr_nbma->nbr) { |
667 | nbr_nbma->nbr->nbr_nbma = NULL; | |
668 | nbr_nbma->nbr = NULL; | |
669 | } | |
670 | ||
671 | if (nbr_nbma->oi) { | |
672 | listnode_delete(nbr_nbma->oi->nbr_nbma, | |
673 | nbr_nbma); | |
674 | nbr_nbma->oi = NULL; | |
675 | } | |
676 | ||
677 | XFREE(MTYPE_OSPF_NEIGHBOR_STATIC, nbr_nbma); | |
678 | } | |
679 | ||
680 | route_table_finish(ospf->nbr_nbma); | |
681 | ||
682 | /* Clear networks and Areas. */ | |
683 | for (rn = route_top(ospf->networks); rn; rn = route_next(rn)) { | |
684 | struct ospf_network *network; | |
685 | ||
686 | if ((network = rn->info) != NULL) { | |
687 | ospf_network_free(ospf, network); | |
688 | rn->info = NULL; | |
689 | route_unlock_node(rn); | |
690 | } | |
91e6a0e5 | 691 | } |
7f586094 | 692 | route_table_finish(ospf->networks); |
718e3744 | 693 | |
d62a17ae | 694 | for (ALL_LIST_ELEMENTS(ospf->areas, node, nnode, area)) { |
695 | listnode_delete(ospf->areas, area); | |
696 | ospf_area_free(area); | |
697 | } | |
718e3744 | 698 | |
d62a17ae | 699 | /* Cancel all timers. */ |
700 | OSPF_TIMER_OFF(ospf->t_external_lsa); | |
701 | OSPF_TIMER_OFF(ospf->t_spf_calc); | |
702 | OSPF_TIMER_OFF(ospf->t_ase_calc); | |
703 | OSPF_TIMER_OFF(ospf->t_maxage); | |
704 | OSPF_TIMER_OFF(ospf->t_maxage_walker); | |
705 | OSPF_TIMER_OFF(ospf->t_abr_task); | |
706 | OSPF_TIMER_OFF(ospf->t_asbr_check); | |
707 | OSPF_TIMER_OFF(ospf->t_distribute_update); | |
708 | OSPF_TIMER_OFF(ospf->t_lsa_refresher); | |
709 | OSPF_TIMER_OFF(ospf->t_read); | |
710 | OSPF_TIMER_OFF(ospf->t_write); | |
711 | OSPF_TIMER_OFF(ospf->t_opaque_lsa_self); | |
45a43856 | 712 | OSPF_TIMER_OFF(ospf->t_sr_update); |
d62a17ae | 713 | |
714 | close(ospf->fd); | |
715 | stream_free(ospf->ibuf); | |
716 | ||
996c9314 | 717 | LSDB_LOOP (OPAQUE_AS_LSDB(ospf), rn, lsa) |
044506e7 | 718 | ospf_discard_from_db(ospf, ospf->lsdb, lsa); |
996c9314 | 719 | LSDB_LOOP (EXTERNAL_LSDB(ospf), rn, lsa) |
044506e7 | 720 | ospf_discard_from_db(ospf, ospf->lsdb, lsa); |
d62a17ae | 721 | |
722 | ospf_lsdb_delete_all(ospf->lsdb); | |
723 | ospf_lsdb_free(ospf->lsdb); | |
724 | ||
725 | for (rn = route_top(ospf->maxage_lsa); rn; rn = route_next(rn)) { | |
d62a17ae | 726 | if ((lsa = rn->info) != NULL) { |
727 | ospf_lsa_unlock(&lsa); | |
728 | rn->info = NULL; | |
729 | } | |
730 | route_unlock_node(rn); | |
731 | } | |
732 | route_table_finish(ospf->maxage_lsa); | |
733 | ||
734 | if (ospf->old_table) | |
735 | ospf_route_table_free(ospf->old_table); | |
736 | if (ospf->new_table) { | |
b5a8894d | 737 | ospf_route_delete(ospf, ospf->new_table); |
d62a17ae | 738 | ospf_route_table_free(ospf->new_table); |
739 | } | |
740 | if (ospf->old_rtrs) | |
741 | ospf_rtrs_free(ospf->old_rtrs); | |
742 | if (ospf->new_rtrs) | |
743 | ospf_rtrs_free(ospf->new_rtrs); | |
744 | if (ospf->new_external_route) { | |
b5a8894d | 745 | ospf_route_delete(ospf, ospf->new_external_route); |
d62a17ae | 746 | ospf_route_table_free(ospf->new_external_route); |
747 | } | |
748 | if (ospf->old_external_route) { | |
b5a8894d | 749 | ospf_route_delete(ospf, ospf->old_external_route); |
d62a17ae | 750 | ospf_route_table_free(ospf->old_external_route); |
751 | } | |
752 | if (ospf->external_lsas) { | |
753 | ospf_ase_external_lsas_finish(ospf->external_lsas); | |
754 | } | |
718e3744 | 755 | |
6a154c88 DL |
756 | list_delete(&ospf->areas); |
757 | list_delete(&ospf->oi_write_q); | |
d62a17ae | 758 | |
759 | for (i = ZEBRA_ROUTE_SYSTEM; i <= ZEBRA_ROUTE_MAX; i++) { | |
760 | struct list *ext_list; | |
d62a17ae | 761 | struct ospf_external *ext; |
762 | ||
de1ac5fd | 763 | ext_list = ospf->external[i]; |
d62a17ae | 764 | if (!ext_list) |
765 | continue; | |
766 | ||
767 | for (ALL_LIST_ELEMENTS_RO(ext_list, node, ext)) { | |
768 | if (ext->external_info) | |
769 | for (rn = route_top(ext->external_info); rn; | |
770 | rn = route_next(rn)) { | |
771 | if (rn->info == NULL) | |
772 | continue; | |
773 | ||
774 | XFREE(MTYPE_OSPF_EXTERNAL_INFO, | |
775 | rn->info); | |
776 | rn->info = NULL; | |
777 | route_unlock_node(rn); | |
778 | } | |
779 | } | |
780 | } | |
718e3744 | 781 | |
d62a17ae | 782 | ospf_distance_reset(ospf); |
783 | route_table_finish(ospf->distance_table); | |
7c8ff89e | 784 | |
d62a17ae | 785 | if (!CHECK_FLAG(om->options, OSPF_MASTER_SHUTDOWN)) |
786 | instance = ospf->instance; | |
718e3744 | 787 | |
d62a17ae | 788 | ospf_delete(ospf); |
7c8ff89e | 789 | |
b5a8894d CS |
790 | if (ospf->name) { |
791 | vrf = vrf_lookup_by_name(ospf->name); | |
792 | if (vrf) | |
793 | ospf_vrf_unlink(ospf, vrf); | |
794 | XFREE(MTYPE_OSPF_TOP, ospf->name); | |
795 | } else { | |
796 | vrf = vrf_lookup_by_id(VRF_DEFAULT); | |
797 | if (vrf) | |
798 | ospf_vrf_unlink(ospf, vrf); | |
799 | } | |
800 | ||
d62a17ae | 801 | XFREE(MTYPE_OSPF_TOP, ospf); |
7c8ff89e | 802 | |
d62a17ae | 803 | if (!CHECK_FLAG(om->options, OSPF_MASTER_SHUTDOWN)) |
804 | ospf_get_instance(instance); | |
718e3744 | 805 | } |
806 | ||
6b0655a2 | 807 | |
718e3744 | 808 | /* allocate new OSPF Area object */ |
d62a17ae | 809 | static struct ospf_area *ospf_area_new(struct ospf *ospf, |
810 | struct in_addr area_id) | |
718e3744 | 811 | { |
d62a17ae | 812 | struct ospf_area *new; |
718e3744 | 813 | |
d62a17ae | 814 | /* Allocate new config_network. */ |
815 | new = XCALLOC(MTYPE_OSPF_AREA, sizeof(struct ospf_area)); | |
718e3744 | 816 | |
d62a17ae | 817 | new->ospf = ospf; |
718e3744 | 818 | |
d62a17ae | 819 | new->area_id = area_id; |
820 | new->area_id_fmt = OSPF_AREA_ID_FMT_DOTTEDQUAD; | |
718e3744 | 821 | |
d62a17ae | 822 | new->external_routing = OSPF_AREA_DEFAULT; |
823 | new->default_cost = 1; | |
824 | new->auth_type = OSPF_AUTH_NULL; | |
718e3744 | 825 | |
d62a17ae | 826 | /* New LSDB init. */ |
827 | new->lsdb = ospf_lsdb_new(); | |
718e3744 | 828 | |
d62a17ae | 829 | /* Self-originated LSAs initialize. */ |
830 | new->router_lsa_self = NULL; | |
718e3744 | 831 | |
d62a17ae | 832 | ospf_opaque_type10_lsa_init(new); |
718e3744 | 833 | |
d62a17ae | 834 | new->oiflist = list_new(); |
835 | new->ranges = route_table_init(); | |
718e3744 | 836 | |
d62a17ae | 837 | if (area_id.s_addr == OSPF_AREA_BACKBONE) |
838 | ospf->backbone = new; | |
839 | ||
840 | return new; | |
718e3744 | 841 | } |
842 | ||
d62a17ae | 843 | static void ospf_area_free(struct ospf_area *area) |
718e3744 | 844 | { |
d62a17ae | 845 | struct route_node *rn; |
846 | struct ospf_lsa *lsa; | |
847 | ||
7f7f77a0 DS |
848 | ospf_opaque_type10_lsa_term(area); |
849 | ||
d62a17ae | 850 | /* Free LSDBs. */ |
996c9314 | 851 | LSDB_LOOP (ROUTER_LSDB(area), rn, lsa) |
044506e7 | 852 | ospf_discard_from_db(area->ospf, area->lsdb, lsa); |
996c9314 | 853 | LSDB_LOOP (NETWORK_LSDB(area), rn, lsa) |
044506e7 | 854 | ospf_discard_from_db(area->ospf, area->lsdb, lsa); |
996c9314 | 855 | LSDB_LOOP (SUMMARY_LSDB(area), rn, lsa) |
044506e7 | 856 | ospf_discard_from_db(area->ospf, area->lsdb, lsa); |
996c9314 | 857 | LSDB_LOOP (ASBR_SUMMARY_LSDB(area), rn, lsa) |
044506e7 | 858 | ospf_discard_from_db(area->ospf, area->lsdb, lsa); |
68980084 | 859 | |
996c9314 | 860 | LSDB_LOOP (NSSA_LSDB(area), rn, lsa) |
044506e7 | 861 | ospf_discard_from_db(area->ospf, area->lsdb, lsa); |
996c9314 | 862 | LSDB_LOOP (OPAQUE_AREA_LSDB(area), rn, lsa) |
044506e7 | 863 | ospf_discard_from_db(area->ospf, area->lsdb, lsa); |
996c9314 | 864 | LSDB_LOOP (OPAQUE_LINK_LSDB(area), rn, lsa) |
044506e7 | 865 | ospf_discard_from_db(area->ospf, area->lsdb, lsa); |
718e3744 | 866 | |
d62a17ae | 867 | ospf_lsdb_delete_all(area->lsdb); |
868 | ospf_lsdb_free(area->lsdb); | |
718e3744 | 869 | |
d62a17ae | 870 | ospf_lsa_unlock(&area->router_lsa_self); |
718e3744 | 871 | |
d62a17ae | 872 | route_table_finish(area->ranges); |
6a154c88 | 873 | list_delete(&area->oiflist); |
718e3744 | 874 | |
d62a17ae | 875 | if (EXPORT_NAME(area)) |
876 | free(EXPORT_NAME(area)); | |
718e3744 | 877 | |
d62a17ae | 878 | if (IMPORT_NAME(area)) |
879 | free(IMPORT_NAME(area)); | |
718e3744 | 880 | |
d62a17ae | 881 | /* Cancel timer. */ |
882 | OSPF_TIMER_OFF(area->t_stub_router); | |
883 | OSPF_TIMER_OFF(area->t_opaque_lsa_self); | |
718e3744 | 884 | |
d62a17ae | 885 | if (OSPF_IS_AREA_BACKBONE(area)) |
886 | area->ospf->backbone = NULL; | |
887 | ||
888 | XFREE(MTYPE_OSPF_AREA, area); | |
718e3744 | 889 | } |
890 | ||
d62a17ae | 891 | void ospf_area_check_free(struct ospf *ospf, struct in_addr area_id) |
718e3744 | 892 | { |
d62a17ae | 893 | struct ospf_area *area; |
718e3744 | 894 | |
d62a17ae | 895 | area = ospf_area_lookup_by_area_id(ospf, area_id); |
896 | if (area && listcount(area->oiflist) == 0 && area->ranges->top == NULL | |
19ce7d5e | 897 | && !ospf_vl_count(ospf, area) |
d62a17ae | 898 | && area->shortcut_configured == OSPF_SHORTCUT_DEFAULT |
899 | && area->external_routing == OSPF_AREA_DEFAULT | |
900 | && area->no_summary == 0 && area->default_cost == 1 | |
901 | && EXPORT_NAME(area) == NULL && IMPORT_NAME(area) == NULL | |
902 | && area->auth_type == OSPF_AUTH_NULL) { | |
903 | listnode_delete(ospf->areas, area); | |
904 | ospf_area_free(area); | |
905 | } | |
718e3744 | 906 | } |
907 | ||
d62a17ae | 908 | struct ospf_area *ospf_area_get(struct ospf *ospf, struct in_addr area_id) |
718e3744 | 909 | { |
d62a17ae | 910 | struct ospf_area *area; |
911 | ||
912 | area = ospf_area_lookup_by_area_id(ospf, area_id); | |
913 | if (!area) { | |
914 | area = ospf_area_new(ospf, area_id); | |
915 | listnode_add_sort(ospf->areas, area); | |
916 | ospf_check_abr_status(ospf); | |
917 | if (ospf->stub_router_admin_set | |
918 | == OSPF_STUB_ROUTER_ADMINISTRATIVE_SET) { | |
919 | SET_FLAG(area->stub_router_state, | |
920 | OSPF_AREA_ADMIN_STUB_ROUTED); | |
921 | } | |
922 | } | |
718e3744 | 923 | |
d62a17ae | 924 | return area; |
718e3744 | 925 | } |
926 | ||
d62a17ae | 927 | struct ospf_area *ospf_area_lookup_by_area_id(struct ospf *ospf, |
928 | struct in_addr area_id) | |
718e3744 | 929 | { |
d62a17ae | 930 | struct ospf_area *area; |
931 | struct listnode *node; | |
718e3744 | 932 | |
d62a17ae | 933 | for (ALL_LIST_ELEMENTS_RO(ospf->areas, node, area)) |
934 | if (IPV4_ADDR_SAME(&area->area_id, &area_id)) | |
935 | return area; | |
718e3744 | 936 | |
d62a17ae | 937 | return NULL; |
718e3744 | 938 | } |
939 | ||
d62a17ae | 940 | void ospf_area_add_if(struct ospf_area *area, struct ospf_interface *oi) |
718e3744 | 941 | { |
d62a17ae | 942 | listnode_add(area->oiflist, oi); |
718e3744 | 943 | } |
944 | ||
d62a17ae | 945 | void ospf_area_del_if(struct ospf_area *area, struct ospf_interface *oi) |
718e3744 | 946 | { |
d62a17ae | 947 | listnode_delete(area->oiflist, oi); |
718e3744 | 948 | } |
949 | ||
52c62ab8 | 950 | |
d62a17ae | 951 | static void add_ospf_interface(struct connected *co, struct ospf_area *area) |
953cde65 | 952 | { |
d62a17ae | 953 | struct ospf_interface *oi; |
953cde65 | 954 | |
d62a17ae | 955 | oi = ospf_if_new(area->ospf, co->ifp, co->address); |
956 | oi->connected = co; | |
953cde65 | 957 | |
d62a17ae | 958 | oi->area = area; |
953cde65 | 959 | |
d62a17ae | 960 | oi->params = ospf_lookup_if_params(co->ifp, oi->address->u.prefix4); |
961 | oi->output_cost = ospf_if_get_output_cost(oi); | |
953cde65 | 962 | |
d62a17ae | 963 | /* Relate ospf interface to ospf instance. */ |
964 | oi->ospf = area->ospf; | |
953cde65 | 965 | |
d62a17ae | 966 | /* update network type as interface flag */ |
967 | /* If network type is specified previously, | |
968 | skip network type setting. */ | |
969 | oi->type = IF_DEF_PARAMS(co->ifp)->type; | |
953cde65 | 970 | |
d62a17ae | 971 | /* Add pseudo neighbor. */ |
972 | ospf_nbr_self_reset(oi, oi->ospf->router_id); | |
953cde65 | 973 | |
d62a17ae | 974 | ospf_area_add_if(oi->area, oi); |
52c62ab8 | 975 | |
d62a17ae | 976 | /* |
977 | * if router_id is not configured, dont bring up | |
978 | * interfaces. | |
979 | * ospf_router_id_update() will call ospf_if_update | |
980 | * whenever r-id is configured instead. | |
981 | */ | |
982 | if ((area->ospf->router_id.s_addr != 0) && if_is_operative(co->ifp)) | |
983 | ospf_if_up(oi); | |
953cde65 JT |
984 | } |
985 | ||
986 | static void update_redistributed(struct ospf *ospf, int add_to_ospf) | |
987 | { | |
d62a17ae | 988 | struct route_node *rn; |
989 | struct external_info *ei; | |
990 | struct ospf_external *ext; | |
991 | ||
de1ac5fd CS |
992 | if (ospf_is_type_redistributed(ospf, ZEBRA_ROUTE_CONNECT, 0)) { |
993 | ext = ospf_external_lookup(ospf, ZEBRA_ROUTE_CONNECT, 0); | |
994 | if ((ext) && EXTERNAL_INFO(ext)) { | |
d62a17ae | 995 | for (rn = route_top(EXTERNAL_INFO(ext)); rn; |
996 | rn = route_next(rn)) { | |
de1ac5fd CS |
997 | ei = rn->info; |
998 | if (ei == NULL) | |
999 | continue; | |
1000 | ||
1001 | if (add_to_ospf) { | |
996c9314 LB |
1002 | if (ospf_external_info_find_lsa(ospf, |
1003 | &ei->p)) | |
de1ac5fd CS |
1004 | if (!ospf_distribute_check_connected( |
1005 | ospf, ei)) | |
1006 | ospf_external_lsa_flush( | |
996c9314 | 1007 | ospf, ei->type, |
de1ac5fd CS |
1008 | &ei->p, |
1009 | ei->ifindex /*, ei->nexthop */); | |
1010 | } else { | |
1011 | if (!ospf_external_info_find_lsa( | |
1012 | ospf, &ei->p)) | |
1013 | if (ospf_distribute_check_connected( | |
1014 | ospf, ei)) | |
1015 | ospf_external_lsa_originate( | |
996c9314 | 1016 | ospf, ei); |
d62a17ae | 1017 | } |
1018 | } | |
1019 | } | |
de1ac5fd | 1020 | } |
953cde65 JT |
1021 | } |
1022 | ||
718e3744 | 1023 | /* Config network statement related functions. */ |
d62a17ae | 1024 | static struct ospf_network *ospf_network_new(struct in_addr area_id) |
718e3744 | 1025 | { |
d62a17ae | 1026 | struct ospf_network *new; |
1027 | new = XCALLOC(MTYPE_OSPF_NETWORK, sizeof(struct ospf_network)); | |
718e3744 | 1028 | |
d62a17ae | 1029 | new->area_id = area_id; |
1030 | new->area_id_fmt = OSPF_AREA_ID_FMT_DOTTEDQUAD; | |
1031 | ||
1032 | return new; | |
718e3744 | 1033 | } |
1034 | ||
d62a17ae | 1035 | static void ospf_network_free(struct ospf *ospf, struct ospf_network *network) |
718e3744 | 1036 | { |
d62a17ae | 1037 | ospf_area_check_free(ospf, network->area_id); |
1038 | ospf_schedule_abr_task(ospf); | |
1039 | XFREE(MTYPE_OSPF_NETWORK, network); | |
718e3744 | 1040 | } |
1041 | ||
d62a17ae | 1042 | int ospf_network_set(struct ospf *ospf, struct prefix_ipv4 *p, |
1043 | struct in_addr area_id, int df) | |
718e3744 | 1044 | { |
d62a17ae | 1045 | struct ospf_network *network; |
1046 | struct ospf_area *area; | |
1047 | struct route_node *rn; | |
718e3744 | 1048 | |
d62a17ae | 1049 | rn = route_node_get(ospf->networks, (struct prefix *)p); |
1050 | if (rn->info) { | |
2b0a905a | 1051 | network = rn->info; |
d62a17ae | 1052 | route_unlock_node(rn); |
2b0a905a DW |
1053 | |
1054 | if (IPV4_ADDR_SAME(&area_id, &network->area_id)) { | |
1055 | return 1; | |
1056 | } else { | |
1057 | /* There is already same network statement. */ | |
1058 | return 0; | |
1059 | } | |
d62a17ae | 1060 | } |
718e3744 | 1061 | |
d62a17ae | 1062 | rn->info = network = ospf_network_new(area_id); |
1063 | network->area_id_fmt = df; | |
1064 | area = ospf_area_get(ospf, area_id); | |
1065 | ospf_area_display_format_set(ospf, area, df); | |
718e3744 | 1066 | |
d62a17ae | 1067 | /* Run network config now. */ |
1068 | ospf_network_run((struct prefix *)p, area); | |
718e3744 | 1069 | |
d62a17ae | 1070 | /* Update connected redistribute. */ |
1071 | update_redistributed(ospf, 1); /* interfaces possibly added */ | |
718e3744 | 1072 | |
d62a17ae | 1073 | ospf_area_check_free(ospf, area_id); |
718e3744 | 1074 | |
d62a17ae | 1075 | return 1; |
718e3744 | 1076 | } |
1077 | ||
d62a17ae | 1078 | int ospf_network_unset(struct ospf *ospf, struct prefix_ipv4 *p, |
1079 | struct in_addr area_id) | |
718e3744 | 1080 | { |
d62a17ae | 1081 | struct route_node *rn; |
1082 | struct ospf_network *network; | |
1083 | struct listnode *node, *nnode; | |
1084 | struct ospf_interface *oi; | |
718e3744 | 1085 | |
d62a17ae | 1086 | rn = route_node_lookup(ospf->networks, (struct prefix *)p); |
1087 | if (rn == NULL) | |
1088 | return 0; | |
718e3744 | 1089 | |
d62a17ae | 1090 | network = rn->info; |
1091 | route_unlock_node(rn); | |
1092 | if (!IPV4_ADDR_SAME(&area_id, &network->area_id)) | |
1093 | return 0; | |
718e3744 | 1094 | |
d62a17ae | 1095 | ospf_network_free(ospf, rn->info); |
1096 | rn->info = NULL; | |
1097 | route_unlock_node(rn); /* initial reference */ | |
718e3744 | 1098 | |
30c0daa4 | 1099 | /* Find interfaces that are not configured already. */ |
d62a17ae | 1100 | for (ALL_LIST_ELEMENTS(ospf->oiflist, node, nnode, oi)) { |
30c0daa4 | 1101 | |
996c9314 LB |
1102 | if (oi->type == OSPF_IFTYPE_VIRTUALLINK) |
1103 | continue; | |
30c0daa4 | 1104 | |
996c9314 | 1105 | ospf_network_run_subnet(ospf, oi->connected, NULL, NULL); |
d62a17ae | 1106 | } |
953cde65 | 1107 | |
d62a17ae | 1108 | /* Update connected redistribute. */ |
1109 | update_redistributed(ospf, 0); /* interfaces possibly removed */ | |
1110 | ospf_area_check_free(ospf, area_id); | |
1111 | ||
1112 | return 1; | |
953cde65 JT |
1113 | } |
1114 | ||
52c62ab8 JAG |
1115 | /* Ensure there's an OSPF instance, as "ip ospf area" enabled OSPF means |
1116 | * there might not be any 'router ospf' config. | |
1117 | * | |
1118 | * Otherwise, doesn't do anything different to ospf_if_update for now | |
1119 | */ | |
b5a8894d | 1120 | void ospf_interface_area_set(struct ospf *ospf, struct interface *ifp) |
953cde65 | 1121 | { |
b5a8894d CS |
1122 | if (!ospf) |
1123 | return; | |
d62a17ae | 1124 | |
1125 | ospf_if_update(ospf, ifp); | |
1126 | /* if_update does a update_redistributed */ | |
1127 | ||
1128 | return; | |
953cde65 JT |
1129 | } |
1130 | ||
b5a8894d | 1131 | void ospf_interface_area_unset(struct ospf *ospf, struct interface *ifp) |
953cde65 | 1132 | { |
d62a17ae | 1133 | struct route_node *rn_oi; |
953cde65 | 1134 | |
d62a17ae | 1135 | if (!ospf) |
1136 | return; /* Ospf not ready yet */ | |
953cde65 | 1137 | |
d62a17ae | 1138 | /* Find interfaces that may need to be removed. */ |
1139 | for (rn_oi = route_top(IF_OIFS(ifp)); rn_oi; | |
1140 | rn_oi = route_next(rn_oi)) { | |
b5a8894d | 1141 | struct ospf_interface *oi = NULL; |
d62a17ae | 1142 | |
1143 | if ((oi = rn_oi->info) == NULL) | |
1144 | continue; | |
1145 | ||
1146 | if (oi->type == OSPF_IFTYPE_VIRTUALLINK) | |
1147 | continue; | |
1148 | ||
1149 | ospf_network_run_subnet(ospf, oi->connected, NULL, NULL); | |
1150 | } | |
953cde65 | 1151 | |
d62a17ae | 1152 | /* Update connected redistribute. */ |
1153 | update_redistributed(ospf, 0); /* interfaces possibly removed */ | |
718e3744 | 1154 | } |
1155 | ||
e9f07a30 PG |
1156 | bool ospf_interface_area_is_already_set(struct ospf *ospf, |
1157 | struct interface *ifp) | |
1158 | { | |
1159 | struct route_node *rn_oi; | |
1160 | ||
1161 | if (!ospf) | |
1162 | return false; /* Ospf not ready yet */ | |
1163 | ||
1164 | /* Find interfaces that may need to be removed. */ | |
1165 | for (rn_oi = route_top(IF_OIFS(ifp)); rn_oi; | |
1166 | rn_oi = route_next(rn_oi)) { | |
1167 | struct ospf_interface *oi = rn_oi->info; | |
1168 | ||
1169 | if (oi == NULL) | |
1170 | continue; | |
1171 | ||
1172 | if (oi->type == OSPF_IFTYPE_VIRTUALLINK) | |
1173 | continue; | |
1174 | /* at least one route covered by interface | |
1175 | * that implies already done | |
1176 | */ | |
1177 | return true; | |
1178 | } | |
1179 | return false; | |
1180 | } | |
1181 | ||
570f7598 | 1182 | /* Check whether interface matches given network |
1183 | * returns: 1, true. 0, false | |
1184 | */ | |
d62a17ae | 1185 | static int ospf_network_match_iface(const struct connected *co, |
1186 | const struct prefix *net) | |
570f7598 | 1187 | { |
d62a17ae | 1188 | /* new approach: more elegant and conceptually clean */ |
1189 | return prefix_match_network_statement(net, CONNECTED_PREFIX(co)); | |
570f7598 | 1190 | } |
1191 | ||
d62a17ae | 1192 | static void ospf_update_interface_area(struct connected *co, |
1193 | struct ospf_area *area) | |
52c62ab8 | 1194 | { |
d62a17ae | 1195 | struct ospf_interface *oi = ospf_if_table_lookup(co->ifp, co->address); |
1196 | ||
1197 | /* nothing to be done case */ | |
1198 | if (oi && oi->area == area) { | |
1199 | return; | |
1200 | } | |
1201 | ||
1202 | if (oi) | |
1203 | ospf_if_free(oi); | |
1204 | ||
1205 | add_ospf_interface(co, area); | |
52c62ab8 JAG |
1206 | } |
1207 | ||
1208 | /* Run OSPF for the given subnet, taking into account the following | |
1209 | * possible sources of area configuration, in the given order of preference: | |
1210 | * | |
1211 | * - Whether there is interface+address specific area configuration | |
1212 | * - Whether there is a default area for the interface | |
1213 | * - Whether there is an area given as a parameter. | |
1214 | * - If no specific network prefix/area is supplied, whether there's | |
1215 | * a matching network configured. | |
1216 | */ | |
d62a17ae | 1217 | static void ospf_network_run_subnet(struct ospf *ospf, struct connected *co, |
1218 | struct prefix *p, | |
1219 | struct ospf_area *given_area) | |
1220 | { | |
1221 | struct ospf_interface *oi; | |
1222 | struct ospf_if_params *params; | |
1223 | struct ospf_area *area = NULL; | |
1224 | struct route_node *rn; | |
1225 | int configed = 0; | |
1226 | ||
1227 | if (CHECK_FLAG(co->flags, ZEBRA_IFA_SECONDARY)) | |
1228 | return; | |
1229 | ||
1230 | if (co->address->family != AF_INET) | |
1231 | return; | |
1232 | ||
1233 | /* Try determine the appropriate area for this interface + address | |
1234 | * Start by checking interface config | |
1235 | */ | |
1236 | params = ospf_lookup_if_params(co->ifp, co->address->u.prefix4); | |
1237 | if (params && OSPF_IF_PARAM_CONFIGURED(params, if_area)) | |
1238 | area = ospf_area_get(ospf, params->if_area); | |
1239 | else { | |
1240 | params = IF_DEF_PARAMS(co->ifp); | |
1241 | if (OSPF_IF_PARAM_CONFIGURED(params, if_area)) | |
1242 | area = ospf_area_get(ospf, params->if_area); | |
1243 | } | |
52c62ab8 | 1244 | |
d62a17ae | 1245 | /* If we've found an interface and/or addr specific area, then we're |
1246 | * done | |
1247 | */ | |
1248 | if (area) { | |
1249 | ospf_update_interface_area(co, area); | |
1250 | return; | |
1251 | } | |
718e3744 | 1252 | |
d62a17ae | 1253 | /* Otherwise, only remaining possibility is a matching network statement |
1254 | */ | |
1255 | if (p) { | |
1256 | assert(given_area != NULL); | |
1257 | ||
1258 | /* Which either was supplied as a parameter.. (e.g. cause a new | |
1259 | * network/area was just added).. | |
1260 | */ | |
1261 | if (p->family == co->address->family | |
1262 | && ospf_network_match_iface(co, p)) | |
1263 | ospf_update_interface_area(co, given_area); | |
1264 | ||
1265 | return; | |
1266 | } | |
1267 | ||
1268 | /* Else we have to search the existing network/area config to see | |
1269 | * if any match.. | |
1270 | */ | |
1271 | for (rn = route_top(ospf->networks); rn; rn = route_next(rn)) | |
1272 | if (rn->info != NULL && ospf_network_match_iface(co, &rn->p)) { | |
1273 | struct ospf_network *network = | |
1274 | (struct ospf_network *)rn->info; | |
1275 | area = ospf_area_get(ospf, network->area_id); | |
1276 | ospf_update_interface_area(co, area); | |
1277 | configed = 1; | |
1278 | } | |
1279 | ||
1280 | /* If the subnet isn't in any area, deconfigure */ | |
1281 | if (!configed && (oi = ospf_if_table_lookup(co->ifp, co->address))) | |
1282 | ospf_if_free(oi); | |
718e3744 | 1283 | } |
1284 | ||
d62a17ae | 1285 | static void ospf_network_run_interface(struct ospf *ospf, struct interface *ifp, |
1286 | struct prefix *p, | |
1287 | struct ospf_area *given_area) | |
718e3744 | 1288 | { |
d62a17ae | 1289 | struct listnode *cnode; |
1290 | struct connected *co; | |
1291 | ||
1292 | if (memcmp(ifp->name, "VLINK", 5) == 0) | |
1293 | return; | |
718e3744 | 1294 | |
d62a17ae | 1295 | /* Network prefix without area is nonsensical */ |
1296 | if (p) | |
1297 | assert(given_area != NULL); | |
1298 | ||
1299 | /* if interface prefix is match specified prefix, | |
1300 | then create socket and join multicast group. */ | |
1301 | for (ALL_LIST_ELEMENTS_RO(ifp->connected, cnode, co)) | |
1302 | ospf_network_run_subnet(ospf, co, p, given_area); | |
718e3744 | 1303 | } |
1304 | ||
d62a17ae | 1305 | static void ospf_network_run(struct prefix *p, struct ospf_area *area) |
718e3744 | 1306 | { |
f4e14fdb | 1307 | struct vrf *vrf = vrf_lookup_by_id(area->ospf->vrf_id); |
d62a17ae | 1308 | struct interface *ifp; |
d62a17ae | 1309 | |
1310 | /* Schedule Router ID Update. */ | |
1311 | if (area->ospf->router_id.s_addr == 0) | |
1312 | ospf_router_id_update(area->ospf); | |
718e3744 | 1313 | |
d62a17ae | 1314 | /* Get target interface. */ |
451fda4f | 1315 | FOR_ALL_INTERFACES (vrf, ifp) |
d62a17ae | 1316 | ospf_network_run_interface(area->ospf, ifp, p, area); |
718e3744 | 1317 | } |
1318 | ||
d62a17ae | 1319 | void ospf_ls_upd_queue_empty(struct ospf_interface *oi) |
1320 | { | |
1321 | struct route_node *rn; | |
1322 | struct listnode *node, *nnode; | |
1323 | struct list *lst; | |
1324 | struct ospf_lsa *lsa; | |
1325 | ||
1326 | /* empty ls update queue */ | |
1327 | for (rn = route_top(oi->ls_upd_queue); rn; rn = route_next(rn)) | |
1328 | if ((lst = (struct list *)rn->info)) { | |
1329 | for (ALL_LIST_ELEMENTS(lst, node, nnode, lsa)) | |
1330 | ospf_lsa_unlock(&lsa); /* oi->ls_upd_queue */ | |
6a154c88 | 1331 | list_delete(&lst); |
d62a17ae | 1332 | rn->info = NULL; |
1333 | } | |
1334 | ||
1335 | /* remove update event */ | |
1336 | if (oi->t_ls_upd_event) { | |
1337 | thread_cancel(oi->t_ls_upd_event); | |
1338 | oi->t_ls_upd_event = NULL; | |
1339 | } | |
1340 | } | |
6b0655a2 | 1341 | |
d62a17ae | 1342 | void ospf_if_update(struct ospf *ospf, struct interface *ifp) |
718e3744 | 1343 | { |
43b8d1d8 | 1344 | |
d62a17ae | 1345 | if (!ospf) |
43b8d1d8 | 1346 | return; |
b5a8894d CS |
1347 | |
1348 | if (IS_DEBUG_OSPF_EVENT) | |
996c9314 | 1349 | zlog_debug( |
a36898e7 DS |
1350 | "%s: interface %s ifp->vrf_id %u ospf vrf %s vrf_id %u router_id %s", |
1351 | __PRETTY_FUNCTION__, ifp->name, ifp->vrf_id, | |
996c9314 LB |
1352 | ospf_vrf_id_to_name(ospf->vrf_id), ospf->vrf_id, |
1353 | inet_ntoa(ospf->router_id)); | |
d62a17ae | 1354 | |
1355 | /* OSPF must be ready. */ | |
1356 | if (!ospf_is_ready(ospf)) | |
1357 | return; | |
1358 | ||
1359 | ospf_network_run_interface(ospf, ifp, NULL, NULL); | |
1360 | ||
1361 | /* Update connected redistribute. */ | |
1362 | update_redistributed(ospf, 1); | |
1363 | } | |
718e3744 | 1364 | |
d62a17ae | 1365 | void ospf_remove_vls_through_area(struct ospf *ospf, struct ospf_area *area) |
718e3744 | 1366 | { |
d62a17ae | 1367 | struct listnode *node, *nnode; |
1368 | struct ospf_vl_data *vl_data; | |
718e3744 | 1369 | |
d62a17ae | 1370 | for (ALL_LIST_ELEMENTS(ospf->vlinks, node, nnode, vl_data)) |
1371 | if (IPV4_ADDR_SAME(&vl_data->vl_area_id, &area->area_id)) | |
1372 | ospf_vl_delete(ospf, vl_data); | |
1373 | } | |
718e3744 | 1374 | |
718e3744 | 1375 | |
d62a17ae | 1376 | static const struct message ospf_area_type_msg[] = { |
1377 | {OSPF_AREA_DEFAULT, "Default"}, | |
1378 | {OSPF_AREA_STUB, "Stub"}, | |
1379 | {OSPF_AREA_NSSA, "NSSA"}, | |
1380 | {0}}; | |
718e3744 | 1381 | |
d62a17ae | 1382 | static void ospf_area_type_set(struct ospf_area *area, int type) |
1383 | { | |
1384 | struct listnode *node; | |
1385 | struct ospf_interface *oi; | |
1386 | ||
1387 | if (area->external_routing == type) { | |
1388 | if (IS_DEBUG_OSPF_EVENT) | |
1389 | zlog_debug("Area[%s]: Types are the same, ignored.", | |
1390 | inet_ntoa(area->area_id)); | |
1391 | return; | |
1392 | } | |
718e3744 | 1393 | |
d62a17ae | 1394 | area->external_routing = type; |
1395 | ||
1396 | if (IS_DEBUG_OSPF_EVENT) | |
1397 | zlog_debug("Area[%s]: Configured as %s", | |
1398 | inet_ntoa(area->area_id), | |
1399 | lookup_msg(ospf_area_type_msg, type, NULL)); | |
1400 | ||
1401 | switch (area->external_routing) { | |
1402 | case OSPF_AREA_DEFAULT: | |
1403 | for (ALL_LIST_ELEMENTS_RO(area->oiflist, node, oi)) | |
1404 | if (oi->nbr_self != NULL) { | |
1405 | UNSET_FLAG(oi->nbr_self->options, | |
1406 | OSPF_OPTION_NP); | |
1407 | SET_FLAG(oi->nbr_self->options, OSPF_OPTION_E); | |
1408 | } | |
1409 | break; | |
1410 | case OSPF_AREA_STUB: | |
1411 | for (ALL_LIST_ELEMENTS_RO(area->oiflist, node, oi)) | |
1412 | if (oi->nbr_self != NULL) { | |
1413 | if (IS_DEBUG_OSPF_EVENT) | |
1414 | zlog_debug( | |
1415 | "setting options on %s accordingly", | |
1416 | IF_NAME(oi)); | |
1417 | UNSET_FLAG(oi->nbr_self->options, | |
1418 | OSPF_OPTION_NP); | |
1419 | UNSET_FLAG(oi->nbr_self->options, | |
1420 | OSPF_OPTION_E); | |
1421 | if (IS_DEBUG_OSPF_EVENT) | |
1422 | zlog_debug("options set on %s: %x", | |
1423 | IF_NAME(oi), OPTIONS(oi)); | |
1424 | } | |
1425 | break; | |
1426 | case OSPF_AREA_NSSA: | |
1427 | for (ALL_LIST_ELEMENTS_RO(area->oiflist, node, oi)) | |
1428 | if (oi->nbr_self != NULL) { | |
1429 | zlog_debug( | |
1430 | "setting nssa options on %s accordingly", | |
1431 | IF_NAME(oi)); | |
1432 | UNSET_FLAG(oi->nbr_self->options, | |
1433 | OSPF_OPTION_E); | |
1434 | SET_FLAG(oi->nbr_self->options, OSPF_OPTION_NP); | |
1435 | zlog_debug("options set on %s: %x", IF_NAME(oi), | |
1436 | OPTIONS(oi)); | |
1437 | } | |
1438 | break; | |
1439 | default: | |
1440 | break; | |
1441 | } | |
1442 | ||
1443 | ospf_router_lsa_update_area(area); | |
1444 | ospf_schedule_abr_task(area->ospf); | |
718e3744 | 1445 | } |
1446 | ||
d62a17ae | 1447 | int ospf_area_shortcut_set(struct ospf *ospf, struct ospf_area *area, int mode) |
718e3744 | 1448 | { |
d62a17ae | 1449 | if (area->shortcut_configured == mode) |
1450 | return 0; | |
718e3744 | 1451 | |
d62a17ae | 1452 | area->shortcut_configured = mode; |
1453 | ospf_router_lsa_update_area(area); | |
1454 | ospf_schedule_abr_task(ospf); | |
718e3744 | 1455 | |
d62a17ae | 1456 | ospf_area_check_free(ospf, area->area_id); |
718e3744 | 1457 | |
d62a17ae | 1458 | return 1; |
718e3744 | 1459 | } |
1460 | ||
d62a17ae | 1461 | int ospf_area_shortcut_unset(struct ospf *ospf, struct ospf_area *area) |
718e3744 | 1462 | { |
d62a17ae | 1463 | area->shortcut_configured = OSPF_SHORTCUT_DEFAULT; |
1464 | ospf_router_lsa_update_area(area); | |
1465 | ospf_area_check_free(ospf, area->area_id); | |
1466 | ospf_schedule_abr_task(ospf); | |
718e3744 | 1467 | |
d62a17ae | 1468 | return 1; |
718e3744 | 1469 | } |
1470 | ||
d62a17ae | 1471 | static int ospf_area_vlink_count(struct ospf *ospf, struct ospf_area *area) |
718e3744 | 1472 | { |
d62a17ae | 1473 | struct ospf_vl_data *vl; |
1474 | struct listnode *node; | |
1475 | int count = 0; | |
718e3744 | 1476 | |
d62a17ae | 1477 | for (ALL_LIST_ELEMENTS_RO(ospf->vlinks, node, vl)) |
1478 | if (IPV4_ADDR_SAME(&vl->vl_area_id, &area->area_id)) | |
1479 | count++; | |
718e3744 | 1480 | |
d62a17ae | 1481 | return count; |
718e3744 | 1482 | } |
1483 | ||
d62a17ae | 1484 | int ospf_area_display_format_set(struct ospf *ospf, struct ospf_area *area, |
1485 | int df) | |
86573dcb | 1486 | { |
d62a17ae | 1487 | area->area_id_fmt = df; |
86573dcb | 1488 | |
d62a17ae | 1489 | return 1; |
86573dcb QY |
1490 | } |
1491 | ||
d62a17ae | 1492 | int ospf_area_stub_set(struct ospf *ospf, struct in_addr area_id) |
718e3744 | 1493 | { |
d62a17ae | 1494 | struct ospf_area *area; |
718e3744 | 1495 | |
d62a17ae | 1496 | area = ospf_area_get(ospf, area_id); |
1497 | if (ospf_area_vlink_count(ospf, area)) | |
1498 | return 0; | |
718e3744 | 1499 | |
d62a17ae | 1500 | if (area->external_routing != OSPF_AREA_STUB) |
1501 | ospf_area_type_set(area, OSPF_AREA_STUB); | |
718e3744 | 1502 | |
d62a17ae | 1503 | return 1; |
718e3744 | 1504 | } |
1505 | ||
d62a17ae | 1506 | int ospf_area_stub_unset(struct ospf *ospf, struct in_addr area_id) |
718e3744 | 1507 | { |
d62a17ae | 1508 | struct ospf_area *area; |
718e3744 | 1509 | |
d62a17ae | 1510 | area = ospf_area_lookup_by_area_id(ospf, area_id); |
1511 | if (area == NULL) | |
1512 | return 1; | |
718e3744 | 1513 | |
d62a17ae | 1514 | if (area->external_routing == OSPF_AREA_STUB) |
1515 | ospf_area_type_set(area, OSPF_AREA_DEFAULT); | |
718e3744 | 1516 | |
d62a17ae | 1517 | ospf_area_check_free(ospf, area_id); |
718e3744 | 1518 | |
d62a17ae | 1519 | return 1; |
718e3744 | 1520 | } |
1521 | ||
d62a17ae | 1522 | int ospf_area_no_summary_set(struct ospf *ospf, struct in_addr area_id) |
718e3744 | 1523 | { |
d62a17ae | 1524 | struct ospf_area *area; |
718e3744 | 1525 | |
d62a17ae | 1526 | area = ospf_area_get(ospf, area_id); |
1527 | area->no_summary = 1; | |
718e3744 | 1528 | |
d62a17ae | 1529 | return 1; |
718e3744 | 1530 | } |
1531 | ||
d62a17ae | 1532 | int ospf_area_no_summary_unset(struct ospf *ospf, struct in_addr area_id) |
718e3744 | 1533 | { |
d62a17ae | 1534 | struct ospf_area *area; |
718e3744 | 1535 | |
d62a17ae | 1536 | area = ospf_area_lookup_by_area_id(ospf, area_id); |
1537 | if (area == NULL) | |
1538 | return 0; | |
718e3744 | 1539 | |
d62a17ae | 1540 | area->no_summary = 0; |
1541 | ospf_area_check_free(ospf, area_id); | |
718e3744 | 1542 | |
d62a17ae | 1543 | return 1; |
718e3744 | 1544 | } |
1545 | ||
7ef56a73 | 1546 | int ospf_area_nssa_no_summary_set(struct ospf *ospf, struct in_addr area_id) |
718e3744 | 1547 | { |
d62a17ae | 1548 | struct ospf_area *area; |
718e3744 | 1549 | |
d62a17ae | 1550 | area = ospf_area_get(ospf, area_id); |
1551 | if (ospf_area_vlink_count(ospf, area)) | |
1552 | return 0; | |
718e3744 | 1553 | |
d62a17ae | 1554 | if (area->external_routing != OSPF_AREA_NSSA) { |
1555 | ospf_area_type_set(area, OSPF_AREA_NSSA); | |
1556 | ospf->anyNSSA++; | |
7ef56a73 | 1557 | area->NSSATranslatorRole = OSPF_NSSA_ROLE_CANDIDATE; |
d62a17ae | 1558 | } |
718e3744 | 1559 | |
7ef56a73 | 1560 | ospf_area_no_summary_set(ospf, area_id); |
084c7844 | 1561 | |
d62a17ae | 1562 | return 1; |
718e3744 | 1563 | } |
1564 | ||
7ef56a73 CS |
1565 | int ospf_area_nssa_set(struct ospf *ospf, struct in_addr area_id) |
1566 | { | |
1567 | struct ospf_area *area; | |
1568 | ||
1569 | area = ospf_area_get(ospf, area_id); | |
1570 | if (ospf_area_vlink_count(ospf, area)) | |
1571 | return 0; | |
1572 | ||
1573 | if (area->external_routing != OSPF_AREA_NSSA) { | |
1574 | ospf_area_type_set(area, OSPF_AREA_NSSA); | |
1575 | ospf->anyNSSA++; | |
1576 | ||
1577 | /* set NSSA area defaults */ | |
1578 | area->no_summary = 0; | |
1579 | area->NSSATranslatorRole = OSPF_NSSA_ROLE_CANDIDATE; | |
1580 | area->NSSATranslatorState = OSPF_NSSA_TRANSLATE_DISABLED; | |
1581 | area->NSSATranslatorStabilityInterval = | |
1582 | OSPF_NSSA_TRANS_STABLE_DEFAULT; | |
1583 | } | |
1584 | return 1; | |
1585 | } | |
1586 | ||
1587 | int ospf_area_nssa_unset(struct ospf *ospf, struct in_addr area_id, int argc) | |
718e3744 | 1588 | { |
d62a17ae | 1589 | struct ospf_area *area; |
718e3744 | 1590 | |
d62a17ae | 1591 | area = ospf_area_lookup_by_area_id(ospf, area_id); |
1592 | if (area == NULL) | |
1593 | return 0; | |
718e3744 | 1594 | |
7ef56a73 CS |
1595 | /* argc < 5 -> 'no area x nssa' */ |
1596 | if (argc < 5 && area->external_routing == OSPF_AREA_NSSA) { | |
d62a17ae | 1597 | ospf->anyNSSA--; |
7ef56a73 CS |
1598 | /* set NSSA area defaults */ |
1599 | area->no_summary = 0; | |
1600 | area->NSSATranslatorRole = OSPF_NSSA_ROLE_CANDIDATE; | |
1601 | area->NSSATranslatorState = OSPF_NSSA_TRANSLATE_DISABLED; | |
1602 | area->NSSATranslatorStabilityInterval = | |
1603 | OSPF_NSSA_TRANS_STABLE_DEFAULT; | |
d62a17ae | 1604 | ospf_area_type_set(area, OSPF_AREA_DEFAULT); |
7ef56a73 CS |
1605 | } else { |
1606 | area->NSSATranslatorRole = OSPF_NSSA_ROLE_CANDIDATE; | |
d62a17ae | 1607 | } |
718e3744 | 1608 | |
d62a17ae | 1609 | ospf_area_check_free(ospf, area_id); |
718e3744 | 1610 | |
d62a17ae | 1611 | return 1; |
718e3744 | 1612 | } |
1613 | ||
d62a17ae | 1614 | int ospf_area_nssa_translator_role_set(struct ospf *ospf, |
1615 | struct in_addr area_id, int role) | |
718e3744 | 1616 | { |
d62a17ae | 1617 | struct ospf_area *area; |
718e3744 | 1618 | |
d62a17ae | 1619 | area = ospf_area_lookup_by_area_id(ospf, area_id); |
1620 | if (area == NULL) | |
1621 | return 0; | |
718e3744 | 1622 | |
d62a17ae | 1623 | area->NSSATranslatorRole = role; |
718e3744 | 1624 | |
d62a17ae | 1625 | return 1; |
718e3744 | 1626 | } |
1627 | ||
075e12f5 | 1628 | #if 0 |
4dadc291 | 1629 | /* XXX: unused? Leave for symmetry? */ |
1630 | static int | |
718e3744 | 1631 | ospf_area_nssa_translator_role_unset (struct ospf *ospf, |
1632 | struct in_addr area_id) | |
1633 | { | |
1634 | struct ospf_area *area; | |
1635 | ||
68980084 | 1636 | area = ospf_area_lookup_by_area_id (ospf, area_id); |
718e3744 | 1637 | if (area == NULL) |
1638 | return 0; | |
1639 | ||
084c7844 | 1640 | area->NSSATranslatorRole = OSPF_NSSA_ROLE_CANDIDATE; |
718e3744 | 1641 | |
68980084 | 1642 | ospf_area_check_free (ospf, area_id); |
718e3744 | 1643 | |
1644 | return 1; | |
1645 | } | |
075e12f5 | 1646 | #endif |
718e3744 | 1647 | |
d62a17ae | 1648 | int ospf_area_export_list_set(struct ospf *ospf, struct ospf_area *area, |
1649 | const char *list_name) | |
718e3744 | 1650 | { |
d62a17ae | 1651 | struct access_list *list; |
1652 | list = access_list_lookup(AFI_IP, list_name); | |
718e3744 | 1653 | |
d62a17ae | 1654 | EXPORT_LIST(area) = list; |
718e3744 | 1655 | |
d62a17ae | 1656 | if (EXPORT_NAME(area)) |
1657 | free(EXPORT_NAME(area)); | |
718e3744 | 1658 | |
d62a17ae | 1659 | EXPORT_NAME(area) = strdup(list_name); |
1660 | ospf_schedule_abr_task(ospf); | |
718e3744 | 1661 | |
d62a17ae | 1662 | return 1; |
718e3744 | 1663 | } |
1664 | ||
d62a17ae | 1665 | int ospf_area_export_list_unset(struct ospf *ospf, struct ospf_area *area) |
718e3744 | 1666 | { |
1667 | ||
d62a17ae | 1668 | EXPORT_LIST(area) = 0; |
718e3744 | 1669 | |
d62a17ae | 1670 | if (EXPORT_NAME(area)) |
1671 | free(EXPORT_NAME(area)); | |
718e3744 | 1672 | |
d62a17ae | 1673 | EXPORT_NAME(area) = NULL; |
718e3744 | 1674 | |
d62a17ae | 1675 | ospf_area_check_free(ospf, area->area_id); |
718e3744 | 1676 | |
d62a17ae | 1677 | ospf_schedule_abr_task(ospf); |
1678 | ||
1679 | return 1; | |
718e3744 | 1680 | } |
1681 | ||
d62a17ae | 1682 | int ospf_area_import_list_set(struct ospf *ospf, struct ospf_area *area, |
1683 | const char *name) | |
718e3744 | 1684 | { |
d62a17ae | 1685 | struct access_list *list; |
1686 | list = access_list_lookup(AFI_IP, name); | |
718e3744 | 1687 | |
d62a17ae | 1688 | IMPORT_LIST(area) = list; |
718e3744 | 1689 | |
d62a17ae | 1690 | if (IMPORT_NAME(area)) |
1691 | free(IMPORT_NAME(area)); | |
718e3744 | 1692 | |
d62a17ae | 1693 | IMPORT_NAME(area) = strdup(name); |
1694 | ospf_schedule_abr_task(ospf); | |
718e3744 | 1695 | |
d62a17ae | 1696 | return 1; |
718e3744 | 1697 | } |
1698 | ||
d62a17ae | 1699 | int ospf_area_import_list_unset(struct ospf *ospf, struct ospf_area *area) |
718e3744 | 1700 | { |
d62a17ae | 1701 | IMPORT_LIST(area) = 0; |
718e3744 | 1702 | |
d62a17ae | 1703 | if (IMPORT_NAME(area)) |
1704 | free(IMPORT_NAME(area)); | |
718e3744 | 1705 | |
d62a17ae | 1706 | IMPORT_NAME(area) = NULL; |
1707 | ospf_area_check_free(ospf, area->area_id); | |
718e3744 | 1708 | |
d62a17ae | 1709 | ospf_schedule_abr_task(ospf); |
718e3744 | 1710 | |
d62a17ae | 1711 | return 1; |
718e3744 | 1712 | } |
1713 | ||
d62a17ae | 1714 | int ospf_timers_refresh_set(struct ospf *ospf, int interval) |
718e3744 | 1715 | { |
d62a17ae | 1716 | int time_left; |
718e3744 | 1717 | |
d62a17ae | 1718 | if (ospf->lsa_refresh_interval == interval) |
1719 | return 1; | |
718e3744 | 1720 | |
d62a17ae | 1721 | time_left = ospf->lsa_refresh_interval |
1722 | - (monotime(NULL) - ospf->lsa_refresher_started); | |
718e3744 | 1723 | |
d62a17ae | 1724 | if (time_left > interval) { |
1725 | OSPF_TIMER_OFF(ospf->t_lsa_refresher); | |
1726 | thread_add_timer(master, ospf_lsa_refresh_walker, ospf, | |
1727 | interval, &ospf->t_lsa_refresher); | |
1728 | } | |
1729 | ospf->lsa_refresh_interval = interval; | |
1730 | ||
1731 | return 1; | |
718e3744 | 1732 | } |
1733 | ||
d62a17ae | 1734 | int ospf_timers_refresh_unset(struct ospf *ospf) |
718e3744 | 1735 | { |
d62a17ae | 1736 | int time_left; |
718e3744 | 1737 | |
d62a17ae | 1738 | time_left = ospf->lsa_refresh_interval |
1739 | - (monotime(NULL) - ospf->lsa_refresher_started); | |
718e3744 | 1740 | |
d62a17ae | 1741 | if (time_left > OSPF_LSA_REFRESH_INTERVAL_DEFAULT) { |
1742 | OSPF_TIMER_OFF(ospf->t_lsa_refresher); | |
1743 | ospf->t_lsa_refresher = NULL; | |
1744 | thread_add_timer(master, ospf_lsa_refresh_walker, ospf, | |
1745 | OSPF_LSA_REFRESH_INTERVAL_DEFAULT, | |
1746 | &ospf->t_lsa_refresher); | |
1747 | } | |
718e3744 | 1748 | |
d62a17ae | 1749 | ospf->lsa_refresh_interval = OSPF_LSA_REFRESH_INTERVAL_DEFAULT; |
718e3744 | 1750 | |
d62a17ae | 1751 | return 1; |
718e3744 | 1752 | } |
1753 | ||
6b0655a2 | 1754 | |
d62a17ae | 1755 | static struct ospf_nbr_nbma *ospf_nbr_nbma_new(void) |
718e3744 | 1756 | { |
d62a17ae | 1757 | struct ospf_nbr_nbma *nbr_nbma; |
718e3744 | 1758 | |
d62a17ae | 1759 | nbr_nbma = XCALLOC(MTYPE_OSPF_NEIGHBOR_STATIC, |
1760 | sizeof(struct ospf_nbr_nbma)); | |
718e3744 | 1761 | |
d62a17ae | 1762 | nbr_nbma->priority = OSPF_NEIGHBOR_PRIORITY_DEFAULT; |
1763 | nbr_nbma->v_poll = OSPF_POLL_INTERVAL_DEFAULT; | |
718e3744 | 1764 | |
d62a17ae | 1765 | return nbr_nbma; |
718e3744 | 1766 | } |
1767 | ||
d62a17ae | 1768 | static void ospf_nbr_nbma_free(struct ospf_nbr_nbma *nbr_nbma) |
718e3744 | 1769 | { |
d62a17ae | 1770 | XFREE(MTYPE_OSPF_NEIGHBOR_STATIC, nbr_nbma); |
718e3744 | 1771 | } |
1772 | ||
d62a17ae | 1773 | static void ospf_nbr_nbma_delete(struct ospf *ospf, |
1774 | struct ospf_nbr_nbma *nbr_nbma) | |
718e3744 | 1775 | { |
d62a17ae | 1776 | struct route_node *rn; |
1777 | struct prefix_ipv4 p; | |
718e3744 | 1778 | |
d62a17ae | 1779 | p.family = AF_INET; |
1780 | p.prefix = nbr_nbma->addr; | |
1781 | p.prefixlen = IPV4_MAX_BITLEN; | |
718e3744 | 1782 | |
d62a17ae | 1783 | rn = route_node_lookup(ospf->nbr_nbma, (struct prefix *)&p); |
1784 | if (rn) { | |
1785 | ospf_nbr_nbma_free(rn->info); | |
1786 | rn->info = NULL; | |
1787 | route_unlock_node(rn); | |
1788 | route_unlock_node(rn); | |
1789 | } | |
718e3744 | 1790 | } |
1791 | ||
d62a17ae | 1792 | static void ospf_nbr_nbma_down(struct ospf_nbr_nbma *nbr_nbma) |
718e3744 | 1793 | { |
d62a17ae | 1794 | OSPF_TIMER_OFF(nbr_nbma->t_poll); |
718e3744 | 1795 | |
d62a17ae | 1796 | if (nbr_nbma->nbr) { |
1797 | nbr_nbma->nbr->nbr_nbma = NULL; | |
1798 | OSPF_NSM_EVENT_EXECUTE(nbr_nbma->nbr, NSM_KillNbr); | |
1799 | } | |
718e3744 | 1800 | |
d62a17ae | 1801 | if (nbr_nbma->oi) |
1802 | listnode_delete(nbr_nbma->oi->nbr_nbma, nbr_nbma); | |
718e3744 | 1803 | } |
1804 | ||
d62a17ae | 1805 | static void ospf_nbr_nbma_add(struct ospf_nbr_nbma *nbr_nbma, |
1806 | struct ospf_interface *oi) | |
718e3744 | 1807 | { |
d62a17ae | 1808 | struct ospf_neighbor *nbr; |
1809 | struct route_node *rn; | |
1810 | struct prefix p; | |
718e3744 | 1811 | |
d62a17ae | 1812 | if (oi->type != OSPF_IFTYPE_NBMA) |
1813 | return; | |
718e3744 | 1814 | |
d62a17ae | 1815 | if (nbr_nbma->nbr != NULL) |
1816 | return; | |
718e3744 | 1817 | |
d62a17ae | 1818 | if (IPV4_ADDR_SAME(&oi->nbr_self->address.u.prefix4, &nbr_nbma->addr)) |
1819 | return; | |
718e3744 | 1820 | |
d62a17ae | 1821 | nbr_nbma->oi = oi; |
1822 | listnode_add(oi->nbr_nbma, nbr_nbma); | |
718e3744 | 1823 | |
d62a17ae | 1824 | /* Get neighbor information from table. */ |
1825 | p.family = AF_INET; | |
1826 | p.prefixlen = IPV4_MAX_BITLEN; | |
1827 | p.u.prefix4 = nbr_nbma->addr; | |
718e3744 | 1828 | |
d62a17ae | 1829 | rn = route_node_get(oi->nbrs, (struct prefix *)&p); |
1830 | if (rn->info) { | |
1831 | nbr = rn->info; | |
1832 | nbr->nbr_nbma = nbr_nbma; | |
1833 | nbr_nbma->nbr = nbr; | |
718e3744 | 1834 | |
d62a17ae | 1835 | route_unlock_node(rn); |
1836 | } else { | |
1837 | nbr = rn->info = ospf_nbr_new(oi); | |
1838 | nbr->state = NSM_Down; | |
1839 | nbr->src = nbr_nbma->addr; | |
1840 | nbr->nbr_nbma = nbr_nbma; | |
1841 | nbr->priority = nbr_nbma->priority; | |
1842 | nbr->address = p; | |
718e3744 | 1843 | |
d62a17ae | 1844 | nbr_nbma->nbr = nbr; |
1845 | ||
1846 | OSPF_NSM_EVENT_EXECUTE(nbr, NSM_Start); | |
1847 | } | |
718e3744 | 1848 | } |
1849 | ||
d62a17ae | 1850 | void ospf_nbr_nbma_if_update(struct ospf *ospf, struct ospf_interface *oi) |
718e3744 | 1851 | { |
d62a17ae | 1852 | struct ospf_nbr_nbma *nbr_nbma; |
1853 | struct route_node *rn; | |
1854 | struct prefix_ipv4 p; | |
718e3744 | 1855 | |
d62a17ae | 1856 | if (oi->type != OSPF_IFTYPE_NBMA) |
1857 | return; | |
718e3744 | 1858 | |
d62a17ae | 1859 | for (rn = route_top(ospf->nbr_nbma); rn; rn = route_next(rn)) |
1860 | if ((nbr_nbma = rn->info)) | |
1861 | if (nbr_nbma->oi == NULL && nbr_nbma->nbr == NULL) { | |
1862 | p.family = AF_INET; | |
1863 | p.prefix = nbr_nbma->addr; | |
1864 | p.prefixlen = IPV4_MAX_BITLEN; | |
718e3744 | 1865 | |
d62a17ae | 1866 | if (prefix_match(oi->address, |
1867 | (struct prefix *)&p)) | |
1868 | ospf_nbr_nbma_add(nbr_nbma, oi); | |
1869 | } | |
718e3744 | 1870 | } |
1871 | ||
d62a17ae | 1872 | struct ospf_nbr_nbma *ospf_nbr_nbma_lookup(struct ospf *ospf, |
1873 | struct in_addr nbr_addr) | |
718e3744 | 1874 | { |
d62a17ae | 1875 | struct route_node *rn; |
1876 | struct prefix_ipv4 p; | |
718e3744 | 1877 | |
d62a17ae | 1878 | p.family = AF_INET; |
1879 | p.prefix = nbr_addr; | |
1880 | p.prefixlen = IPV4_MAX_BITLEN; | |
718e3744 | 1881 | |
d62a17ae | 1882 | rn = route_node_lookup(ospf->nbr_nbma, (struct prefix *)&p); |
1883 | if (rn) { | |
1884 | route_unlock_node(rn); | |
1885 | return rn->info; | |
1886 | } | |
1887 | return NULL; | |
718e3744 | 1888 | } |
1889 | ||
d62a17ae | 1890 | struct ospf_nbr_nbma *ospf_nbr_nbma_lookup_next(struct ospf *ospf, |
1891 | struct in_addr *addr, int first) | |
718e3744 | 1892 | { |
1893 | #if 0 | |
1894 | struct ospf_nbr_nbma *nbr_nbma; | |
52dc7ee6 | 1895 | struct listnode *node; |
718e3744 | 1896 | #endif |
1897 | ||
d62a17ae | 1898 | if (ospf == NULL) |
1899 | return NULL; | |
718e3744 | 1900 | |
1901 | #if 0 | |
1eb8ef25 | 1902 | for (ALL_LIST_ELEMENTS_RO (ospf->nbr_nbma, node, nbr_nbma)) |
718e3744 | 1903 | { |
718e3744 | 1904 | if (first) |
1905 | { | |
1906 | *addr = nbr_nbma->addr; | |
1907 | return nbr_nbma; | |
1908 | } | |
1909 | else if (ntohl (nbr_nbma->addr.s_addr) > ntohl (addr->s_addr)) | |
1910 | { | |
1911 | *addr = nbr_nbma->addr; | |
1912 | return nbr_nbma; | |
1913 | } | |
1914 | } | |
1915 | #endif | |
d62a17ae | 1916 | return NULL; |
718e3744 | 1917 | } |
1918 | ||
d62a17ae | 1919 | int ospf_nbr_nbma_set(struct ospf *ospf, struct in_addr nbr_addr) |
718e3744 | 1920 | { |
d62a17ae | 1921 | struct ospf_nbr_nbma *nbr_nbma; |
1922 | struct ospf_interface *oi; | |
1923 | struct prefix_ipv4 p; | |
1924 | struct route_node *rn; | |
1925 | struct listnode *node; | |
718e3744 | 1926 | |
d62a17ae | 1927 | nbr_nbma = ospf_nbr_nbma_lookup(ospf, nbr_addr); |
1928 | if (nbr_nbma) | |
1929 | return 0; | |
718e3744 | 1930 | |
d62a17ae | 1931 | nbr_nbma = ospf_nbr_nbma_new(); |
1932 | nbr_nbma->addr = nbr_addr; | |
718e3744 | 1933 | |
d62a17ae | 1934 | p.family = AF_INET; |
1935 | p.prefix = nbr_addr; | |
1936 | p.prefixlen = IPV4_MAX_BITLEN; | |
718e3744 | 1937 | |
d62a17ae | 1938 | rn = route_node_get(ospf->nbr_nbma, (struct prefix *)&p); |
1939 | if (rn->info) | |
1940 | route_unlock_node(rn); | |
1941 | rn->info = nbr_nbma; | |
718e3744 | 1942 | |
d62a17ae | 1943 | for (ALL_LIST_ELEMENTS_RO(ospf->oiflist, node, oi)) { |
1944 | if (oi->type == OSPF_IFTYPE_NBMA) | |
1945 | if (prefix_match(oi->address, (struct prefix *)&p)) { | |
1946 | ospf_nbr_nbma_add(nbr_nbma, oi); | |
1947 | break; | |
1948 | } | |
1949 | } | |
718e3744 | 1950 | |
d62a17ae | 1951 | return 1; |
718e3744 | 1952 | } |
1953 | ||
d62a17ae | 1954 | int ospf_nbr_nbma_unset(struct ospf *ospf, struct in_addr nbr_addr) |
718e3744 | 1955 | { |
d62a17ae | 1956 | struct ospf_nbr_nbma *nbr_nbma; |
718e3744 | 1957 | |
d62a17ae | 1958 | nbr_nbma = ospf_nbr_nbma_lookup(ospf, nbr_addr); |
1959 | if (nbr_nbma == NULL) | |
1960 | return 0; | |
718e3744 | 1961 | |
d62a17ae | 1962 | ospf_nbr_nbma_down(nbr_nbma); |
1963 | ospf_nbr_nbma_delete(ospf, nbr_nbma); | |
718e3744 | 1964 | |
d62a17ae | 1965 | return 1; |
718e3744 | 1966 | } |
1967 | ||
d62a17ae | 1968 | int ospf_nbr_nbma_priority_set(struct ospf *ospf, struct in_addr nbr_addr, |
d7c0a89a | 1969 | uint8_t priority) |
718e3744 | 1970 | { |
d62a17ae | 1971 | struct ospf_nbr_nbma *nbr_nbma; |
718e3744 | 1972 | |
d62a17ae | 1973 | nbr_nbma = ospf_nbr_nbma_lookup(ospf, nbr_addr); |
1974 | if (nbr_nbma == NULL) | |
1975 | return 0; | |
718e3744 | 1976 | |
d62a17ae | 1977 | if (nbr_nbma->priority != priority) |
1978 | nbr_nbma->priority = priority; | |
718e3744 | 1979 | |
d62a17ae | 1980 | return 1; |
718e3744 | 1981 | } |
1982 | ||
d62a17ae | 1983 | int ospf_nbr_nbma_priority_unset(struct ospf *ospf, struct in_addr nbr_addr) |
718e3744 | 1984 | { |
d62a17ae | 1985 | struct ospf_nbr_nbma *nbr_nbma; |
718e3744 | 1986 | |
d62a17ae | 1987 | nbr_nbma = ospf_nbr_nbma_lookup(ospf, nbr_addr); |
1988 | if (nbr_nbma == NULL) | |
1989 | return 0; | |
718e3744 | 1990 | |
d62a17ae | 1991 | if (nbr_nbma != OSPF_NEIGHBOR_PRIORITY_DEFAULT) |
1992 | nbr_nbma->priority = OSPF_NEIGHBOR_PRIORITY_DEFAULT; | |
718e3744 | 1993 | |
d62a17ae | 1994 | return 1; |
718e3744 | 1995 | } |
1996 | ||
d62a17ae | 1997 | int ospf_nbr_nbma_poll_interval_set(struct ospf *ospf, struct in_addr nbr_addr, |
1998 | unsigned int interval) | |
718e3744 | 1999 | { |
d62a17ae | 2000 | struct ospf_nbr_nbma *nbr_nbma; |
718e3744 | 2001 | |
d62a17ae | 2002 | nbr_nbma = ospf_nbr_nbma_lookup(ospf, nbr_addr); |
2003 | if (nbr_nbma == NULL) | |
2004 | return 0; | |
718e3744 | 2005 | |
d62a17ae | 2006 | if (nbr_nbma->v_poll != interval) { |
2007 | nbr_nbma->v_poll = interval; | |
2008 | if (nbr_nbma->oi && ospf_if_is_up(nbr_nbma->oi)) { | |
2009 | OSPF_TIMER_OFF(nbr_nbma->t_poll); | |
2010 | OSPF_POLL_TIMER_ON(nbr_nbma->t_poll, ospf_poll_timer, | |
2011 | nbr_nbma->v_poll); | |
2012 | } | |
718e3744 | 2013 | } |
718e3744 | 2014 | |
d62a17ae | 2015 | return 1; |
718e3744 | 2016 | } |
2017 | ||
d62a17ae | 2018 | int ospf_nbr_nbma_poll_interval_unset(struct ospf *ospf, struct in_addr addr) |
718e3744 | 2019 | { |
d62a17ae | 2020 | struct ospf_nbr_nbma *nbr_nbma; |
718e3744 | 2021 | |
d62a17ae | 2022 | nbr_nbma = ospf_nbr_nbma_lookup(ospf, addr); |
2023 | if (nbr_nbma == NULL) | |
2024 | return 0; | |
718e3744 | 2025 | |
d62a17ae | 2026 | if (nbr_nbma->v_poll != OSPF_POLL_INTERVAL_DEFAULT) |
2027 | nbr_nbma->v_poll = OSPF_POLL_INTERVAL_DEFAULT; | |
718e3744 | 2028 | |
d62a17ae | 2029 | return 1; |
718e3744 | 2030 | } |
2031 | ||
d62a17ae | 2032 | void ospf_master_init(struct thread_master *master) |
718e3744 | 2033 | { |
d62a17ae | 2034 | memset(&ospf_master, 0, sizeof(struct ospf_master)); |
020709f9 | 2035 | |
d62a17ae | 2036 | om = &ospf_master; |
2037 | om->ospf = list_new(); | |
2038 | om->master = master; | |
020709f9 | 2039 | } |
b5a8894d CS |
2040 | |
2041 | /* Link OSPF instance to VRF. */ | |
2042 | void ospf_vrf_link(struct ospf *ospf, struct vrf *vrf) | |
2043 | { | |
2044 | ospf->vrf_id = vrf->vrf_id; | |
2045 | if (vrf->info != (void *)ospf) | |
2046 | vrf->info = (void *)ospf; | |
2047 | } | |
2048 | ||
2049 | /* Unlink OSPF instance from VRF. */ | |
2050 | void ospf_vrf_unlink(struct ospf *ospf, struct vrf *vrf) | |
2051 | { | |
2052 | if (vrf->info == (void *)ospf) | |
2053 | vrf->info = NULL; | |
2054 | ospf->vrf_id = VRF_UNKNOWN; | |
2055 | } | |
2056 | ||
2057 | /* This is hook function for vrf create called as part of vrf_init */ | |
2058 | static int ospf_vrf_new(struct vrf *vrf) | |
2059 | { | |
2060 | if (IS_DEBUG_OSPF_EVENT) | |
fe3da9e7 | 2061 | zlog_debug("%s: VRF Created: %s(%u)", __PRETTY_FUNCTION__, |
b5a8894d CS |
2062 | vrf->name, vrf->vrf_id); |
2063 | ||
2064 | return 0; | |
2065 | } | |
2066 | ||
2067 | /* This is hook function for vrf delete call as part of vrf_init */ | |
2068 | static int ospf_vrf_delete(struct vrf *vrf) | |
2069 | { | |
2070 | if (IS_DEBUG_OSPF_EVENT) | |
fe3da9e7 | 2071 | zlog_debug("%s: VRF Deletion: %s(%u)", __PRETTY_FUNCTION__, |
b5a8894d CS |
2072 | vrf->name, vrf->vrf_id); |
2073 | ||
2074 | return 0; | |
2075 | } | |
2076 | ||
3d9f7302 PZ |
2077 | static void ospf_set_redist_vrf_bitmaps(struct ospf *ospf) |
2078 | { | |
2079 | int type; | |
2080 | struct list *red_list; | |
2081 | ||
2082 | for (type = 0; type < ZEBRA_ROUTE_MAX; type++) { | |
2083 | red_list = ospf->redist[type]; | |
2084 | if (!red_list) | |
2085 | continue; | |
2086 | if (IS_DEBUG_OSPF_EVENT) | |
2087 | zlog_debug( | |
2088 | "%s: setting redist vrf %d bitmap for type %d", | |
2089 | __func__, ospf->vrf_id, type); | |
2090 | vrf_bitmap_set(zclient->redist[AFI_IP][type], ospf->vrf_id); | |
2091 | } | |
2092 | } | |
2093 | ||
b5a8894d CS |
2094 | /* Enable OSPF VRF instance */ |
2095 | static int ospf_vrf_enable(struct vrf *vrf) | |
2096 | { | |
2097 | struct ospf *ospf = NULL; | |
7d206035 | 2098 | vrf_id_t old_vrf_id; |
3c0eb8fa | 2099 | int ret = 0; |
b5a8894d CS |
2100 | |
2101 | if (IS_DEBUG_OSPF_EVENT) | |
996c9314 LB |
2102 | zlog_debug("%s: VRF %s id %u enabled", __PRETTY_FUNCTION__, |
2103 | vrf->name, vrf->vrf_id); | |
b5a8894d CS |
2104 | |
2105 | ospf = ospf_lookup_by_name(vrf->name); | |
2106 | if (ospf) { | |
6895b354 PG |
2107 | if (ospf->name && strmatch(vrf->name, VRF_DEFAULT_NAME)) { |
2108 | XFREE(MTYPE_OSPF_TOP, ospf->name); | |
2109 | ospf->name = NULL; | |
2110 | } | |
b5a8894d CS |
2111 | old_vrf_id = ospf->vrf_id; |
2112 | /* We have instance configured, link to VRF and make it "up". */ | |
2113 | ospf_vrf_link(ospf, vrf); | |
2114 | if (IS_DEBUG_OSPF_EVENT) | |
996c9314 LB |
2115 | zlog_debug( |
2116 | "%s: ospf linked to vrf %s vrf_id %u (old id %u)", | |
2117 | __PRETTY_FUNCTION__, vrf->name, ospf->vrf_id, | |
2118 | old_vrf_id); | |
b5a8894d CS |
2119 | |
2120 | if (old_vrf_id != ospf->vrf_id) { | |
6bb30c2c DL |
2121 | frr_elevate_privs(&ospfd_privs) { |
2122 | /* stop zebra redist to us for old vrf */ | |
2123 | zclient_send_dereg_requests(zclient, | |
2124 | old_vrf_id); | |
3d9f7302 | 2125 | |
6bb30c2c | 2126 | ospf_set_redist_vrf_bitmaps(ospf); |
3d9f7302 | 2127 | |
6bb30c2c DL |
2128 | /* start zebra redist to us for new vrf */ |
2129 | ospf_zebra_vrf_register(ospf); | |
313d7993 | 2130 | |
6bb30c2c DL |
2131 | ret = ospf_sock_init(ospf); |
2132 | } | |
3c0eb8fa PG |
2133 | if (ret < 0 || ospf->fd <= 0) |
2134 | return 0; | |
996c9314 LB |
2135 | thread_add_read(master, ospf_read, ospf, ospf->fd, |
2136 | &ospf->t_read); | |
b5a8894d CS |
2137 | ospf->oi_running = 1; |
2138 | ospf_router_id_update(ospf); | |
2139 | } | |
2140 | } | |
2141 | ||
2142 | return 0; | |
2143 | } | |
2144 | ||
2145 | /* Disable OSPF VRF instance */ | |
2146 | static int ospf_vrf_disable(struct vrf *vrf) | |
2147 | { | |
2148 | struct ospf *ospf = NULL; | |
2149 | vrf_id_t old_vrf_id = VRF_UNKNOWN; | |
2150 | ||
2151 | if (vrf->vrf_id == VRF_DEFAULT) | |
2152 | return 0; | |
2153 | ||
2154 | if (IS_DEBUG_OSPF_EVENT) | |
996c9314 LB |
2155 | zlog_debug("%s: VRF %s id %d disabled.", __PRETTY_FUNCTION__, |
2156 | vrf->name, vrf->vrf_id); | |
b5a8894d CS |
2157 | |
2158 | ospf = ospf_lookup_by_name(vrf->name); | |
2159 | if (ospf) { | |
2160 | old_vrf_id = ospf->vrf_id; | |
2161 | ||
2162 | /* We have instance configured, unlink | |
2163 | * from VRF and make it "down". | |
2164 | */ | |
2165 | ospf_vrf_unlink(ospf, vrf); | |
2166 | ospf->oi_running = 0; | |
2167 | if (IS_DEBUG_OSPF_EVENT) | |
2168 | zlog_debug("%s: ospf old_vrf_id %d unlinked", | |
996c9314 | 2169 | __PRETTY_FUNCTION__, old_vrf_id); |
3c0eb8fa PG |
2170 | thread_cancel(ospf->t_read); |
2171 | close(ospf->fd); | |
2172 | ospf->fd = -1; | |
b5a8894d CS |
2173 | } |
2174 | ||
2175 | /* Note: This is a callback, the VRF will be deleted by the caller. */ | |
2176 | return 0; | |
2177 | } | |
2178 | ||
2179 | void ospf_vrf_init(void) | |
2180 | { | |
996c9314 | 2181 | vrf_init(ospf_vrf_new, ospf_vrf_enable, ospf_vrf_disable, |
ecbc5a37 | 2182 | ospf_vrf_delete, NULL); |
b5a8894d CS |
2183 | } |
2184 | ||
2185 | void ospf_vrf_terminate(void) | |
2186 | { | |
2187 | vrf_terminate(); | |
2188 | } | |
2189 | ||
2190 | const char *ospf_vrf_id_to_name(vrf_id_t vrf_id) | |
2191 | { | |
2192 | struct vrf *vrf = vrf_lookup_by_id(vrf_id); | |
2193 | ||
2194 | return vrf ? vrf->name : "NIL"; | |
2195 | } |