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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" |
132a782e | 42 | #include "ldp_sync.h" |
718e3744 | 43 | |
44 | #include "ospfd/ospfd.h" | |
45 | #include "ospfd/ospf_network.h" | |
46 | #include "ospfd/ospf_interface.h" | |
47 | #include "ospfd/ospf_ism.h" | |
48 | #include "ospfd/ospf_asbr.h" | |
49 | #include "ospfd/ospf_lsa.h" | |
50 | #include "ospfd/ospf_lsdb.h" | |
51 | #include "ospfd/ospf_neighbor.h" | |
52 | #include "ospfd/ospf_nsm.h" | |
53 | #include "ospfd/ospf_spf.h" | |
54 | #include "ospfd/ospf_packet.h" | |
55 | #include "ospfd/ospf_dump.h" | |
19c0412a | 56 | #include "ospfd/ospf_route.h" |
718e3744 | 57 | #include "ospfd/ospf_zebra.h" |
58 | #include "ospfd/ospf_abr.h" | |
59 | #include "ospfd/ospf_flood.h" | |
718e3744 | 60 | #include "ospfd/ospf_ase.h" |
132a782e | 61 | #include "ospfd/ospf_ldp_sync.h" |
06bc3110 | 62 | #include "ospfd/ospf_gr_helper.h" |
718e3744 | 63 | |
6b0655a2 | 64 | |
ae19c240 | 65 | DEFINE_QOBJ_TYPE(ospf) |
edd7c245 | 66 | |
020709f9 | 67 | /* OSPF process wide configuration. */ |
68 | static struct ospf_master ospf_master; | |
69 | ||
70 | /* OSPF process wide configuration pointer to export. */ | |
71 | struct ospf_master *om; | |
718e3744 | 72 | |
73 | extern struct zclient *zclient; | |
74 | ||
6b0655a2 | 75 | |
d62a17ae | 76 | static void ospf_remove_vls_through_area(struct ospf *, struct ospf_area *); |
77 | static void ospf_network_free(struct ospf *, struct ospf_network *); | |
78 | static void ospf_area_free(struct ospf_area *); | |
79 | static void ospf_network_run(struct prefix *, struct ospf_area *); | |
80 | static void ospf_network_run_interface(struct ospf *, struct interface *, | |
81 | struct prefix *, struct ospf_area *); | |
82 | static void ospf_network_run_subnet(struct ospf *, struct connected *, | |
83 | struct prefix *, struct ospf_area *); | |
84 | static int ospf_network_match_iface(const struct connected *, | |
85 | const struct prefix *); | |
86 | static void ospf_finish_final(struct ospf *); | |
718e3744 | 87 | |
718e3744 | 88 | #define OSPF_EXTERNAL_LSA_ORIGINATE_DELAY 1 |
6b0655a2 | 89 | |
d62a17ae | 90 | void ospf_router_id_update(struct ospf *ospf) |
718e3744 | 91 | { |
f4e14fdb | 92 | struct vrf *vrf = vrf_lookup_by_id(ospf->vrf_id); |
d62a17ae | 93 | struct in_addr router_id, router_id_old; |
94 | struct ospf_interface *oi; | |
95 | struct interface *ifp; | |
96 | struct listnode *node; | |
2c19a6ec | 97 | |
d62a17ae | 98 | if (!ospf->oi_running) { |
99 | if (IS_DEBUG_OSPF_EVENT) | |
100 | zlog_debug( | |
101 | "Router ospf not configured -- Router-ID update postponed"); | |
102 | return; | |
25a346eb | 103 | } |
718e3744 | 104 | |
d62a17ae | 105 | if (IS_DEBUG_OSPF_EVENT) |
96b663a3 MS |
106 | zlog_debug("Router-ID[OLD:%pI4]: Update", |
107 | &ospf->router_id); | |
d62a17ae | 108 | |
109 | router_id_old = ospf->router_id; | |
110 | ||
111 | /* Select the router ID based on these priorities: | |
112 | 1. Statically assigned router ID is always the first choice. | |
113 | 2. If there is no statically assigned router ID, then try to stick | |
114 | with the most recent value, since changing router ID's is very | |
115 | disruptive. | |
116 | 3. Last choice: just go with whatever the zebra daemon recommends. | |
117 | */ | |
3a6290bd | 118 | if (ospf->router_id_static.s_addr != INADDR_ANY) |
d62a17ae | 119 | router_id = ospf->router_id_static; |
3a6290bd | 120 | else if (ospf->router_id.s_addr != INADDR_ANY) |
d62a17ae | 121 | router_id = ospf->router_id; |
122 | else | |
6021c6c0 | 123 | router_id = ospf->router_id_zebra; |
d62a17ae | 124 | |
b5a8894d | 125 | if (IS_DEBUG_OSPF_EVENT) |
96b663a3 MS |
126 | zlog_debug("Router-ID[OLD:%pI4]: Update to %pI4", |
127 | &ospf->router_id, &router_id); | |
d62a17ae | 128 | |
129 | if (!IPV4_ADDR_SAME(&router_id_old, &router_id)) { | |
130 | ||
131 | for (ALL_LIST_ELEMENTS_RO(ospf->oiflist, node, oi)) { | |
132 | /* Some nbrs are identified by router_id, these needs | |
133 | * to be rebuilt. Possible optimization would be to do | |
134 | * oi->nbr_self->router_id = router_id for | |
135 | * !(virtual | ptop) links | |
136 | */ | |
137 | ospf_nbr_self_reset(oi, router_id); | |
7e0274f8 DS |
138 | |
139 | /* | |
140 | * If the old router id was not set, but now it | |
141 | * is and the interface is operative and the | |
142 | * state is ISM_Down we should kick the state | |
143 | * machine as that we processed the interfaces | |
144 | * based upon the network statement( or intf config ) | |
145 | * but could not start it at that time. | |
146 | */ | |
147 | if (if_is_operative(oi->ifp) && oi->state == ISM_Down | |
148 | && router_id_old.s_addr == INADDR_ANY) | |
149 | ospf_if_up(oi); | |
d62a17ae | 150 | } |
151 | ||
d62a17ae | 152 | /* Flush (inline) all external LSAs based on the OSPF_LSA_SELF |
153 | * flag */ | |
154 | if (ospf->lsdb) { | |
155 | struct route_node *rn; | |
156 | struct ospf_lsa *lsa; | |
157 | ||
996c9314 | 158 | LSDB_LOOP (EXTERNAL_LSDB(ospf), rn, lsa) |
044506e7 DS |
159 | if (IS_LSA_SELF(lsa)) |
160 | ospf_lsa_flush_schedule(ospf, lsa); | |
d62a17ae | 161 | } |
162 | ||
163 | ospf->router_id = router_id; | |
164 | if (IS_DEBUG_OSPF_EVENT) | |
96b663a3 MS |
165 | zlog_debug("Router-ID[NEW:%pI4]: Update", |
166 | &ospf->router_id); | |
d62a17ae | 167 | |
168 | /* Flush (inline) all external LSAs which now match the new | |
169 | router-id, | |
0437e105 | 170 | need to adjust the OSPF_LSA_SELF flag, so the flush doesn't |
d62a17ae | 171 | hit |
172 | asserts in ospf_refresher_unregister_lsa(). This step is | |
173 | needed | |
174 | because the current quagga code does look-up for | |
175 | self-originated LSAs | |
176 | based on the self router-id alone but expects OSPF_LSA_SELF | |
177 | to be | |
178 | properly set */ | |
179 | if (ospf->lsdb) { | |
180 | struct route_node *rn; | |
181 | struct ospf_lsa *lsa; | |
182 | ||
044506e7 | 183 | LSDB_LOOP (EXTERNAL_LSDB(ospf), rn, lsa) { |
d62a17ae | 184 | /* AdvRouter and Router ID is the same. */ |
185 | if (IPV4_ADDR_SAME(&lsa->data->adv_router, | |
186 | &ospf->router_id)) { | |
187 | SET_FLAG(lsa->flags, | |
188 | OSPF_LSA_SELF_CHECKED); | |
189 | SET_FLAG(lsa->flags, OSPF_LSA_SELF); | |
190 | ospf_lsa_flush_schedule(ospf, lsa); | |
191 | } | |
192 | } | |
193 | } | |
194 | ||
d62a17ae | 195 | /* update router-lsa's for each area */ |
196 | ospf_router_lsa_update(ospf); | |
197 | ||
198 | /* update ospf_interface's */ | |
451fda4f | 199 | FOR_ALL_INTERFACES (vrf, ifp) |
d62a17ae | 200 | ospf_if_update(ospf, ifp); |
fa3c7c7e DL |
201 | |
202 | ospf_external_lsa_rid_change(ospf); | |
718e3744 | 203 | } |
718e3744 | 204 | } |
6b0655a2 | 205 | |
718e3744 | 206 | /* For OSPF area sort by area id. */ |
d62a17ae | 207 | static int ospf_area_id_cmp(struct ospf_area *a1, struct ospf_area *a2) |
718e3744 | 208 | { |
d62a17ae | 209 | if (ntohl(a1->area_id.s_addr) > ntohl(a2->area_id.s_addr)) |
210 | return 1; | |
211 | if (ntohl(a1->area_id.s_addr) < ntohl(a2->area_id.s_addr)) | |
212 | return -1; | |
213 | return 0; | |
718e3744 | 214 | } |
215 | ||
216 | /* Allocate new ospf structure. */ | |
d7c0a89a | 217 | static struct ospf *ospf_new(unsigned short instance, const char *name) |
718e3744 | 218 | { |
d62a17ae | 219 | int i; |
b5a8894d | 220 | struct vrf *vrf = NULL; |
718e3744 | 221 | |
d62a17ae | 222 | struct ospf *new = XCALLOC(MTYPE_OSPF_TOP, sizeof(struct ospf)); |
718e3744 | 223 | |
d62a17ae | 224 | new->instance = instance; |
225 | new->router_id.s_addr = htonl(0); | |
226 | new->router_id_static.s_addr = htonl(0); | |
14406e8e DS |
227 | if (name) { |
228 | vrf = vrf_lookup_by_name(name); | |
229 | if (vrf) | |
230 | new->vrf_id = vrf->vrf_id; | |
231 | else | |
232 | new->vrf_id = VRF_UNKNOWN; | |
b5a8894d CS |
233 | /* Freed in ospf_finish_final */ |
234 | new->name = XSTRDUP(MTYPE_OSPF_TOP, name); | |
b5a8894d | 235 | if (IS_DEBUG_OSPF_EVENT) |
996c9314 LB |
236 | zlog_debug( |
237 | "%s: Create new ospf instance with vrf_name %s vrf_id %u", | |
15569c58 | 238 | __func__, name, new->vrf_id); |
b5a8894d CS |
239 | } else { |
240 | new->vrf_id = VRF_DEFAULT; | |
241 | vrf = vrf_lookup_by_id(VRF_DEFAULT); | |
b5a8894d | 242 | } |
a2d7fdfe | 243 | |
244 | if (vrf) | |
245 | ospf_vrf_link(new, vrf); | |
246 | ||
b5a8894d CS |
247 | ospf_zebra_vrf_register(new); |
248 | ||
d62a17ae | 249 | new->abr_type = OSPF_ABR_DEFAULT; |
250 | new->oiflist = list_new(); | |
251 | new->vlinks = list_new(); | |
252 | new->areas = list_new(); | |
253 | new->areas->cmp = (int (*)(void *, void *))ospf_area_id_cmp; | |
254 | new->networks = route_table_init(); | |
255 | new->nbr_nbma = route_table_init(); | |
718e3744 | 256 | |
d62a17ae | 257 | new->lsdb = ospf_lsdb_new(); |
718e3744 | 258 | |
d62a17ae | 259 | new->default_originate = DEFAULT_ORIGINATE_NONE; |
718e3744 | 260 | |
d62a17ae | 261 | new->passive_interface_default = OSPF_IF_ACTIVE; |
4ba4fc85 | 262 | |
d62a17ae | 263 | new->new_external_route = route_table_init(); |
264 | new->old_external_route = route_table_init(); | |
265 | new->external_lsas = route_table_init(); | |
266 | ||
267 | new->stub_router_startup_time = OSPF_STUB_ROUTER_UNCONFIGURED; | |
268 | new->stub_router_shutdown_time = OSPF_STUB_ROUTER_UNCONFIGURED; | |
269 | new->stub_router_admin_set = OSPF_STUB_ROUTER_ADMINISTRATIVE_UNSET; | |
270 | ||
271 | /* Distribute parameter init. */ | |
272 | for (i = 0; i <= ZEBRA_ROUTE_MAX; i++) { | |
273 | new->dtag[i] = 0; | |
274 | } | |
275 | new->default_metric = -1; | |
276 | new->ref_bandwidth = OSPF_DEFAULT_REF_BANDWIDTH; | |
277 | ||
278 | /* LSA timers */ | |
279 | new->min_ls_interval = OSPF_MIN_LS_INTERVAL; | |
280 | new->min_ls_arrival = OSPF_MIN_LS_ARRIVAL; | |
281 | ||
282 | /* SPF timer value init. */ | |
283 | new->spf_delay = OSPF_SPF_DELAY_DEFAULT; | |
284 | new->spf_holdtime = OSPF_SPF_HOLDTIME_DEFAULT; | |
285 | new->spf_max_holdtime = OSPF_SPF_MAX_HOLDTIME_DEFAULT; | |
286 | new->spf_hold_multiplier = 1; | |
287 | ||
288 | /* MaxAge init. */ | |
289 | new->maxage_delay = OSPF_LSA_MAXAGE_REMOVE_DELAY_DEFAULT; | |
290 | new->maxage_lsa = route_table_init(); | |
291 | new->t_maxage_walker = NULL; | |
292 | thread_add_timer(master, ospf_lsa_maxage_walker, new, | |
293 | OSPF_LSA_MAXAGE_CHECK_INTERVAL, &new->t_maxage_walker); | |
294 | ||
295 | /* Distance table init. */ | |
296 | new->distance_table = route_table_init(); | |
297 | ||
298 | new->lsa_refresh_queue.index = 0; | |
299 | new->lsa_refresh_interval = OSPF_LSA_REFRESH_INTERVAL_DEFAULT; | |
300 | new->t_lsa_refresher = NULL; | |
301 | thread_add_timer(master, ospf_lsa_refresh_walker, new, | |
302 | new->lsa_refresh_interval, &new->t_lsa_refresher); | |
303 | new->lsa_refresher_started = monotime(NULL); | |
304 | ||
266469eb DS |
305 | new->ibuf = stream_new(OSPF_MAX_PACKET_SIZE + 1); |
306 | ||
d62a17ae | 307 | new->t_read = NULL; |
d62a17ae | 308 | new->oi_write_q = list_new(); |
309 | new->write_oi_count = OSPF_WRITE_INTERFACE_COUNT_DEFAULT; | |
310 | ||
a92706bb JU |
311 | new->proactive_arp = OSPF_PROACTIVE_ARP_DEFAULT; |
312 | ||
06bc3110 | 313 | ospf_gr_helper_init(new); |
314 | ||
ad7222b7 | 315 | ospf_asbr_external_aggregator_init(new); |
316 | ||
d62a17ae | 317 | QOBJ_REG(new, ospf); |
ae19c240 | 318 | |
3c0eb8fa PG |
319 | new->fd = -1; |
320 | if ((ospf_sock_init(new)) < 0) { | |
321 | if (new->vrf_id != VRF_UNKNOWN) | |
ade6974d | 322 | flog_err( |
450971aa | 323 | EC_LIB_SOCKET, |
ade6974d QY |
324 | "%s: ospf_sock_init is unable to open a socket", |
325 | __func__); | |
3c0eb8fa PG |
326 | return new; |
327 | } | |
328 | thread_add_read(master, ospf_read, new, new->fd, &new->t_read); | |
329 | ||
d62a17ae | 330 | return new; |
718e3744 | 331 | } |
332 | ||
d7c0a89a | 333 | struct ospf *ospf_lookup_instance(unsigned short instance) |
7c8ff89e | 334 | { |
d62a17ae | 335 | struct ospf *ospf; |
336 | struct listnode *node, *nnode; | |
7c8ff89e | 337 | |
d62a17ae | 338 | if (listcount(om->ospf) == 0) |
339 | return NULL; | |
7c8ff89e | 340 | |
d62a17ae | 341 | for (ALL_LIST_ELEMENTS(om->ospf, node, nnode, ospf)) |
342 | if ((ospf->instance == 0 && instance == 0) | |
343 | || (ospf->instance && instance | |
344 | && ospf->instance == instance)) | |
345 | return ospf; | |
7c8ff89e | 346 | |
d62a17ae | 347 | return NULL; |
7c8ff89e DS |
348 | } |
349 | ||
d62a17ae | 350 | static int ospf_is_ready(struct ospf *ospf) |
52c62ab8 | 351 | { |
d62a17ae | 352 | /* OSPF must be on and Router-ID must be configured. */ |
975a328e | 353 | if (!ospf || ospf->router_id.s_addr == INADDR_ANY) |
d62a17ae | 354 | return 0; |
355 | ||
356 | return 1; | |
52c62ab8 JAG |
357 | } |
358 | ||
d62a17ae | 359 | static void ospf_add(struct ospf *ospf) |
020709f9 | 360 | { |
d62a17ae | 361 | listnode_add(om->ospf, ospf); |
020709f9 | 362 | } |
718e3744 | 363 | |
d62a17ae | 364 | static void ospf_delete(struct ospf *ospf) |
020709f9 | 365 | { |
d62a17ae | 366 | listnode_delete(om->ospf, ospf); |
020709f9 | 367 | } |
68980084 | 368 | |
d7c0a89a | 369 | struct ospf *ospf_lookup_by_inst_name(unsigned short instance, const char *name) |
b5a8894d CS |
370 | { |
371 | struct ospf *ospf = NULL; | |
372 | struct listnode *node, *nnode; | |
373 | ||
6895b354 PG |
374 | if (name == NULL || strmatch(name, VRF_DEFAULT_NAME)) |
375 | return ospf_lookup_by_vrf_id(VRF_DEFAULT); | |
376 | ||
b5a8894d | 377 | for (ALL_LIST_ELEMENTS(om->ospf, node, nnode, ospf)) { |
996c9314 LB |
378 | if ((ospf->instance == instance) |
379 | && ((ospf->name == NULL && name == NULL) | |
380 | || (ospf->name && name | |
381 | && strcmp(ospf->name, name) == 0))) | |
b5a8894d CS |
382 | return ospf; |
383 | } | |
384 | return NULL; | |
385 | } | |
386 | ||
c3391da1 | 387 | static void ospf_init(struct ospf *ospf) |
020709f9 | 388 | { |
0549eeda IR |
389 | struct vrf *vrf; |
390 | struct interface *ifp; | |
020709f9 | 391 | |
c3391da1 IR |
392 | ospf_opaque_type11_lsa_init(ospf); |
393 | ||
394 | if (ospf->vrf_id != VRF_UNKNOWN) | |
395 | ospf->oi_running = 1; | |
396 | ||
397 | /* Activate 'ip ospf area x' configured interfaces for given | |
398 | * vrf. Activate area on vrf x aware interfaces. | |
399 | * vrf_enable callback calls router_id_update which | |
400 | * internally will call ospf_if_update to trigger | |
401 | * network_run_state | |
402 | */ | |
403 | vrf = vrf_lookup_by_id(ospf->vrf_id); | |
404 | ||
405 | FOR_ALL_INTERFACES (vrf, ifp) { | |
406 | struct ospf_if_params *params; | |
407 | struct route_node *rn; | |
408 | uint32_t count = 0; | |
409 | ||
410 | params = IF_DEF_PARAMS(ifp); | |
411 | if (OSPF_IF_PARAM_CONFIGURED(params, if_area)) | |
412 | count++; | |
413 | ||
414 | for (rn = route_top(IF_OIFS_PARAMS(ifp)); rn; rn = route_next(rn)) | |
415 | if ((params = rn->info) && OSPF_IF_PARAM_CONFIGURED(params, if_area)) | |
416 | count++; | |
417 | ||
418 | if (count > 0) { | |
419 | ospf_interface_area_set(ospf, ifp); | |
420 | ospf->if_ospf_cli_count += count; | |
421 | } | |
422 | } | |
423 | ||
424 | ospf_router_id_update(ospf); | |
425 | } | |
426 | ||
427 | struct ospf *ospf_get(unsigned short instance, const char *name, bool *created) | |
428 | { | |
429 | struct ospf *ospf; | |
430 | ||
b5a8894d CS |
431 | /* vrf name provided call inst and name based api |
432 | * in case of no name pass default ospf instance */ | |
433 | if (name) | |
434 | ospf = ospf_lookup_by_inst_name(instance, name); | |
435 | else | |
436 | ospf = ospf_lookup_by_vrf_id(VRF_DEFAULT); | |
437 | ||
c572fbfe | 438 | *created = (ospf == NULL); |
d62a17ae | 439 | if (ospf == NULL) { |
b5a8894d | 440 | ospf = ospf_new(instance, name); |
d62a17ae | 441 | ospf_add(ospf); |
7c8ff89e | 442 | |
c3391da1 | 443 | ospf_init(ospf); |
d62a17ae | 444 | } |
7c8ff89e | 445 | |
d62a17ae | 446 | return ospf; |
7c8ff89e DS |
447 | } |
448 | ||
c572fbfe | 449 | struct ospf *ospf_get_instance(unsigned short instance, bool *created) |
7c8ff89e | 450 | { |
d62a17ae | 451 | struct ospf *ospf; |
7c8ff89e | 452 | |
d62a17ae | 453 | ospf = ospf_lookup_instance(instance); |
c572fbfe | 454 | *created = (ospf == NULL); |
d62a17ae | 455 | if (ospf == NULL) { |
b5a8894d | 456 | ospf = ospf_new(instance, NULL /* VRF_DEFAULT*/); |
d62a17ae | 457 | ospf_add(ospf); |
020709f9 | 458 | |
c3391da1 | 459 | ospf_init(ospf); |
d62a17ae | 460 | } |
68980084 | 461 | |
d62a17ae | 462 | return ospf; |
718e3744 | 463 | } |
6b0655a2 | 464 | |
b5a8894d CS |
465 | struct ospf *ospf_lookup_by_vrf_id(vrf_id_t vrf_id) |
466 | { | |
467 | struct vrf *vrf = NULL; | |
468 | ||
469 | vrf = vrf_lookup_by_id(vrf_id); | |
470 | if (!vrf) | |
471 | return NULL; | |
472 | return (vrf->info) ? (struct ospf *)vrf->info : NULL; | |
b5a8894d CS |
473 | } |
474 | ||
43b8d1d8 CS |
475 | /* It should only be used when processing incoming info update from zebra. |
476 | * Other situations, it is not sufficient to lookup the ospf instance by | |
477 | * vrf_name only without using the instance number. | |
478 | */ | |
479 | static struct ospf *ospf_lookup_by_name(const char *vrf_name) | |
b5a8894d CS |
480 | { |
481 | struct ospf *ospf = NULL; | |
482 | struct listnode *node, *nnode; | |
483 | ||
484 | for (ALL_LIST_ELEMENTS(om->ospf, node, nnode, ospf)) | |
43b8d1d8 | 485 | if ((ospf->name == NULL && vrf_name == NULL) |
996c9314 LB |
486 | || (ospf->name && vrf_name |
487 | && strcmp(ospf->name, vrf_name) == 0)) | |
b5a8894d CS |
488 | return ospf; |
489 | return NULL; | |
490 | } | |
491 | ||
c9c93d50 | 492 | /* Handle the second half of deferred shutdown. This is called either |
493 | * from the deferred-shutdown timer thread, or directly through | |
494 | * ospf_deferred_shutdown_check. | |
88d6cf37 | 495 | * |
496 | * Function is to cleanup G-R state, if required then call ospf_finish_final | |
497 | * to complete shutdown of this ospf instance. Possibly exit if the | |
498 | * whole process is being shutdown and this was the last OSPF instance. | |
499 | */ | |
d62a17ae | 500 | static void ospf_deferred_shutdown_finish(struct ospf *ospf) |
501 | { | |
502 | ospf->stub_router_shutdown_time = OSPF_STUB_ROUTER_UNCONFIGURED; | |
503 | OSPF_TIMER_OFF(ospf->t_deferred_shutdown); | |
504 | ||
505 | ospf_finish_final(ospf); | |
506 | ||
507 | /* *ospf is now invalid */ | |
88d6cf37 | 508 | |
d62a17ae | 509 | /* ospfd being shut-down? If so, was this the last ospf instance? */ |
510 | if (CHECK_FLAG(om->options, OSPF_MASTER_SHUTDOWN) | |
511 | && (listcount(om->ospf) == 0)) { | |
512 | exit(0); | |
513 | } | |
514 | ||
515 | return; | |
88d6cf37 | 516 | } |
517 | ||
518 | /* Timer thread for G-R */ | |
d62a17ae | 519 | static int ospf_deferred_shutdown_timer(struct thread *t) |
88d6cf37 | 520 | { |
d62a17ae | 521 | struct ospf *ospf = THREAD_ARG(t); |
522 | ||
523 | ospf_deferred_shutdown_finish(ospf); | |
524 | ||
525 | return 0; | |
88d6cf37 | 526 | } |
527 | ||
c9c93d50 | 528 | /* Check whether deferred-shutdown must be scheduled, otherwise call |
88d6cf37 | 529 | * down directly into second-half of instance shutdown. |
530 | */ | |
d62a17ae | 531 | static void ospf_deferred_shutdown_check(struct ospf *ospf) |
532 | { | |
533 | unsigned long timeout; | |
534 | struct listnode *ln; | |
535 | struct ospf_area *area; | |
536 | ||
537 | /* deferred shutdown already running? */ | |
538 | if (ospf->t_deferred_shutdown) | |
539 | return; | |
540 | ||
541 | /* Should we try push out max-metric LSAs? */ | |
542 | if (ospf->stub_router_shutdown_time != OSPF_STUB_ROUTER_UNCONFIGURED) { | |
543 | for (ALL_LIST_ELEMENTS_RO(ospf->areas, ln, area)) { | |
544 | SET_FLAG(area->stub_router_state, | |
545 | OSPF_AREA_ADMIN_STUB_ROUTED); | |
546 | ||
547 | if (!CHECK_FLAG(area->stub_router_state, | |
548 | OSPF_AREA_IS_STUB_ROUTED)) | |
549 | ospf_router_lsa_update_area(area); | |
550 | } | |
551 | timeout = ospf->stub_router_shutdown_time; | |
552 | } else { | |
553 | /* No timer needed */ | |
554 | ospf_deferred_shutdown_finish(ospf); | |
555 | return; | |
556 | } | |
557 | ||
558 | OSPF_TIMER_ON(ospf->t_deferred_shutdown, ospf_deferred_shutdown_timer, | |
559 | timeout); | |
560 | return; | |
88d6cf37 | 561 | } |
6b0655a2 | 562 | |
88d6cf37 | 563 | /* Shut down the entire process */ |
d62a17ae | 564 | void ospf_terminate(void) |
565 | { | |
566 | struct ospf *ospf; | |
567 | struct listnode *node, *nnode; | |
568 | ||
569 | /* shutdown already in progress */ | |
570 | if (CHECK_FLAG(om->options, OSPF_MASTER_SHUTDOWN)) | |
571 | return; | |
572 | ||
573 | SET_FLAG(om->options, OSPF_MASTER_SHUTDOWN); | |
574 | ||
41b21bfa | 575 | /* Skip some steps if OSPF not actually running */ |
d62a17ae | 576 | if (listcount(om->ospf) == 0) |
41b21bfa | 577 | goto done; |
d62a17ae | 578 | |
579 | bfd_gbl_exit(); | |
580 | for (ALL_LIST_ELEMENTS(om->ospf, node, nnode, ospf)) | |
581 | ospf_finish(ospf); | |
582 | ||
ded42248 | 583 | /* Cleanup route maps */ |
ded42248 CS |
584 | route_map_finish(); |
585 | ||
586 | /* reverse prefix_list_init */ | |
587 | prefix_list_add_hook(NULL); | |
588 | prefix_list_delete_hook(NULL); | |
589 | prefix_list_reset(); | |
590 | ||
591 | /* Cleanup vrf info */ | |
592 | ospf_vrf_terminate(); | |
593 | ||
d62a17ae | 594 | /* Deliberately go back up, hopefully to thread scheduler, as |
595 | * One or more ospf_finish()'s may have deferred shutdown to a timer | |
596 | * thread | |
597 | */ | |
598 | zclient_stop(zclient); | |
599 | zclient_free(zclient); | |
8879bd22 | 600 | |
41b21bfa | 601 | done: |
8879bd22 | 602 | frr_fini(); |
d62a17ae | 603 | } |
604 | ||
605 | void ospf_finish(struct ospf *ospf) | |
606 | { | |
607 | /* let deferred shutdown decide */ | |
608 | ospf_deferred_shutdown_check(ospf); | |
609 | ||
610 | /* if ospf_deferred_shutdown returns, then ospf_finish_final is | |
611 | * deferred to expiry of G-S timer thread. Return back up, hopefully | |
612 | * to thread scheduler. | |
613 | */ | |
614 | return; | |
88d6cf37 | 615 | } |
616 | ||
617 | /* Final cleanup of ospf instance */ | |
d62a17ae | 618 | static void ospf_finish_final(struct ospf *ospf) |
718e3744 | 619 | { |
41616883 | 620 | struct vrf *vrf; |
d62a17ae | 621 | struct route_node *rn; |
622 | struct ospf_nbr_nbma *nbr_nbma; | |
623 | struct ospf_lsa *lsa; | |
d62a17ae | 624 | struct ospf_interface *oi; |
625 | struct ospf_area *area; | |
626 | struct ospf_vl_data *vl_data; | |
627 | struct listnode *node, *nnode; | |
628 | int i; | |
7c8ff89e | 629 | |
d62a17ae | 630 | QOBJ_UNREG(ospf); |
7c8ff89e | 631 | |
d62a17ae | 632 | ospf_opaque_type11_lsa_term(ospf); |
953cde65 | 633 | |
bcf4475e OD |
634 | ospf_opaque_finish(); |
635 | ||
046460a1 | 636 | ospf_flush_self_originated_lsas_now(ospf); |
953cde65 | 637 | |
d62a17ae | 638 | /* Unregister redistribution */ |
639 | for (i = 0; i < ZEBRA_ROUTE_MAX; i++) { | |
640 | struct list *red_list; | |
641 | struct ospf_redist *red; | |
718e3744 | 642 | |
d62a17ae | 643 | red_list = ospf->redist[i]; |
644 | if (!red_list) | |
645 | continue; | |
718e3744 | 646 | |
1d753551 | 647 | for (ALL_LIST_ELEMENTS(red_list, node, nnode, red)) { |
d62a17ae | 648 | ospf_redistribute_unset(ospf, i, red->instance); |
1d753551 DS |
649 | ospf_redist_del(ospf, i, red->instance); |
650 | } | |
d62a17ae | 651 | } |
d5eac1e0 | 652 | ospf_redistribute_default_set(ospf, DEFAULT_ORIGINATE_NONE, 0, 0); |
718e3744 | 653 | |
d62a17ae | 654 | for (ALL_LIST_ELEMENTS(ospf->areas, node, nnode, area)) |
655 | ospf_remove_vls_through_area(ospf, area); | |
718e3744 | 656 | |
d62a17ae | 657 | for (ALL_LIST_ELEMENTS(ospf->vlinks, node, nnode, vl_data)) |
658 | ospf_vl_delete(ospf, vl_data); | |
718e3744 | 659 | |
6a154c88 | 660 | list_delete(&ospf->vlinks); |
718e3744 | 661 | |
132a782e | 662 | /* shutdown LDP-Sync */ |
663 | if (ospf->vrf_id == VRF_DEFAULT) | |
664 | ospf_ldp_sync_gbl_exit(ospf, true); | |
665 | ||
d62a17ae | 666 | /* Reset interface. */ |
667 | for (ALL_LIST_ELEMENTS(ospf->oiflist, node, nnode, oi)) | |
668 | ospf_if_free(oi); | |
6a154c88 | 669 | list_delete(&ospf->oiflist); |
c32eba04 | 670 | ospf->oi_running = 0; |
718e3744 | 671 | |
b5a8894d CS |
672 | /* De-Register VRF */ |
673 | ospf_zebra_vrf_deregister(ospf); | |
674 | ||
d62a17ae | 675 | /* Clear static neighbors */ |
676 | for (rn = route_top(ospf->nbr_nbma); rn; rn = route_next(rn)) | |
677 | if ((nbr_nbma = rn->info)) { | |
678 | OSPF_POLL_TIMER_OFF(nbr_nbma->t_poll); | |
718e3744 | 679 | |
d62a17ae | 680 | if (nbr_nbma->nbr) { |
681 | nbr_nbma->nbr->nbr_nbma = NULL; | |
682 | nbr_nbma->nbr = NULL; | |
683 | } | |
684 | ||
685 | if (nbr_nbma->oi) { | |
686 | listnode_delete(nbr_nbma->oi->nbr_nbma, | |
687 | nbr_nbma); | |
688 | nbr_nbma->oi = NULL; | |
689 | } | |
690 | ||
691 | XFREE(MTYPE_OSPF_NEIGHBOR_STATIC, nbr_nbma); | |
692 | } | |
693 | ||
694 | route_table_finish(ospf->nbr_nbma); | |
695 | ||
696 | /* Clear networks and Areas. */ | |
697 | for (rn = route_top(ospf->networks); rn; rn = route_next(rn)) { | |
698 | struct ospf_network *network; | |
699 | ||
700 | if ((network = rn->info) != NULL) { | |
701 | ospf_network_free(ospf, network); | |
702 | rn->info = NULL; | |
703 | route_unlock_node(rn); | |
704 | } | |
91e6a0e5 | 705 | } |
7f586094 | 706 | route_table_finish(ospf->networks); |
718e3744 | 707 | |
d62a17ae | 708 | for (ALL_LIST_ELEMENTS(ospf->areas, node, nnode, area)) { |
709 | listnode_delete(ospf->areas, area); | |
710 | ospf_area_free(area); | |
711 | } | |
718e3744 | 712 | |
d62a17ae | 713 | /* Cancel all timers. */ |
c32eba04 CS |
714 | OSPF_TIMER_OFF(ospf->t_read); |
715 | OSPF_TIMER_OFF(ospf->t_write); | |
d62a17ae | 716 | OSPF_TIMER_OFF(ospf->t_spf_calc); |
717 | OSPF_TIMER_OFF(ospf->t_ase_calc); | |
718 | OSPF_TIMER_OFF(ospf->t_maxage); | |
719 | OSPF_TIMER_OFF(ospf->t_maxage_walker); | |
720 | OSPF_TIMER_OFF(ospf->t_abr_task); | |
721 | OSPF_TIMER_OFF(ospf->t_asbr_check); | |
722 | OSPF_TIMER_OFF(ospf->t_distribute_update); | |
723 | OSPF_TIMER_OFF(ospf->t_lsa_refresher); | |
d62a17ae | 724 | OSPF_TIMER_OFF(ospf->t_opaque_lsa_self); |
45a43856 | 725 | OSPF_TIMER_OFF(ospf->t_sr_update); |
1febb13d | 726 | OSPF_TIMER_OFF(ospf->t_default_routemap_timer); |
ad7222b7 | 727 | OSPF_TIMER_OFF(ospf->t_external_aggr); |
d62a17ae | 728 | |
996c9314 | 729 | LSDB_LOOP (OPAQUE_AS_LSDB(ospf), rn, lsa) |
044506e7 | 730 | ospf_discard_from_db(ospf, ospf->lsdb, lsa); |
996c9314 | 731 | LSDB_LOOP (EXTERNAL_LSDB(ospf), rn, lsa) |
044506e7 | 732 | ospf_discard_from_db(ospf, ospf->lsdb, lsa); |
d62a17ae | 733 | |
734 | ospf_lsdb_delete_all(ospf->lsdb); | |
735 | ospf_lsdb_free(ospf->lsdb); | |
736 | ||
737 | for (rn = route_top(ospf->maxage_lsa); rn; rn = route_next(rn)) { | |
d62a17ae | 738 | if ((lsa = rn->info) != NULL) { |
739 | ospf_lsa_unlock(&lsa); | |
740 | rn->info = NULL; | |
741 | } | |
742 | route_unlock_node(rn); | |
743 | } | |
744 | route_table_finish(ospf->maxage_lsa); | |
745 | ||
746 | if (ospf->old_table) | |
747 | ospf_route_table_free(ospf->old_table); | |
748 | if (ospf->new_table) { | |
b5a8894d | 749 | ospf_route_delete(ospf, ospf->new_table); |
d62a17ae | 750 | ospf_route_table_free(ospf->new_table); |
751 | } | |
752 | if (ospf->old_rtrs) | |
753 | ospf_rtrs_free(ospf->old_rtrs); | |
754 | if (ospf->new_rtrs) | |
755 | ospf_rtrs_free(ospf->new_rtrs); | |
756 | if (ospf->new_external_route) { | |
b5a8894d | 757 | ospf_route_delete(ospf, ospf->new_external_route); |
d62a17ae | 758 | ospf_route_table_free(ospf->new_external_route); |
759 | } | |
760 | if (ospf->old_external_route) { | |
b5a8894d | 761 | ospf_route_delete(ospf, ospf->old_external_route); |
d62a17ae | 762 | ospf_route_table_free(ospf->old_external_route); |
763 | } | |
764 | if (ospf->external_lsas) { | |
765 | ospf_ase_external_lsas_finish(ospf->external_lsas); | |
766 | } | |
718e3744 | 767 | |
d62a17ae | 768 | for (i = ZEBRA_ROUTE_SYSTEM; i <= ZEBRA_ROUTE_MAX; i++) { |
769 | struct list *ext_list; | |
d62a17ae | 770 | struct ospf_external *ext; |
771 | ||
de1ac5fd | 772 | ext_list = ospf->external[i]; |
d62a17ae | 773 | if (!ext_list) |
774 | continue; | |
775 | ||
76fdc7f4 | 776 | for (ALL_LIST_ELEMENTS(ext_list, node, nnode, ext)) { |
d62a17ae | 777 | if (ext->external_info) |
778 | for (rn = route_top(ext->external_info); rn; | |
779 | rn = route_next(rn)) { | |
780 | if (rn->info == NULL) | |
781 | continue; | |
782 | ||
783 | XFREE(MTYPE_OSPF_EXTERNAL_INFO, | |
784 | rn->info); | |
785 | rn->info = NULL; | |
786 | route_unlock_node(rn); | |
787 | } | |
1d753551 DS |
788 | |
789 | ospf_external_del(ospf, i, ext->instance); | |
d62a17ae | 790 | } |
791 | } | |
718e3744 | 792 | |
d62a17ae | 793 | ospf_distance_reset(ospf); |
794 | route_table_finish(ospf->distance_table); | |
7c8ff89e | 795 | |
ad7222b7 | 796 | /* Release extrenal Aggregator table */ |
797 | for (rn = route_top(ospf->rt_aggr_tbl); rn; rn = route_next(rn)) { | |
798 | struct ospf_external_aggr_rt *aggr; | |
799 | ||
800 | aggr = rn->info; | |
801 | ||
802 | if (aggr) { | |
803 | ospf_external_aggregator_free(aggr); | |
804 | rn->info = NULL; | |
805 | route_unlock_node(rn); | |
806 | } | |
807 | } | |
808 | ||
809 | route_table_finish(ospf->rt_aggr_tbl); | |
810 | ||
811 | ||
c32eba04 CS |
812 | list_delete(&ospf->areas); |
813 | list_delete(&ospf->oi_write_q); | |
814 | ||
06bc3110 | 815 | /* Reset GR helper data structers */ |
816 | ospf_gr_helper_stop(ospf); | |
817 | ||
c32eba04 CS |
818 | close(ospf->fd); |
819 | stream_free(ospf->ibuf); | |
820 | ospf->fd = -1; | |
d62a17ae | 821 | ospf_delete(ospf); |
7c8ff89e | 822 | |
b5a8894d CS |
823 | if (ospf->name) { |
824 | vrf = vrf_lookup_by_name(ospf->name); | |
825 | if (vrf) | |
826 | ospf_vrf_unlink(ospf, vrf); | |
827 | XFREE(MTYPE_OSPF_TOP, ospf->name); | |
828 | } else { | |
829 | vrf = vrf_lookup_by_id(VRF_DEFAULT); | |
830 | if (vrf) | |
831 | ospf_vrf_unlink(ospf, vrf); | |
832 | } | |
833 | ||
d62a17ae | 834 | XFREE(MTYPE_OSPF_TOP, ospf); |
718e3744 | 835 | } |
836 | ||
6b0655a2 | 837 | |
718e3744 | 838 | /* allocate new OSPF Area object */ |
d62a17ae | 839 | static struct ospf_area *ospf_area_new(struct ospf *ospf, |
840 | struct in_addr area_id) | |
718e3744 | 841 | { |
d62a17ae | 842 | struct ospf_area *new; |
718e3744 | 843 | |
d62a17ae | 844 | /* Allocate new config_network. */ |
845 | new = XCALLOC(MTYPE_OSPF_AREA, sizeof(struct ospf_area)); | |
718e3744 | 846 | |
d62a17ae | 847 | new->ospf = ospf; |
718e3744 | 848 | |
d62a17ae | 849 | new->area_id = area_id; |
850 | new->area_id_fmt = OSPF_AREA_ID_FMT_DOTTEDQUAD; | |
718e3744 | 851 | |
d62a17ae | 852 | new->external_routing = OSPF_AREA_DEFAULT; |
853 | new->default_cost = 1; | |
854 | new->auth_type = OSPF_AUTH_NULL; | |
718e3744 | 855 | |
d62a17ae | 856 | /* New LSDB init. */ |
857 | new->lsdb = ospf_lsdb_new(); | |
718e3744 | 858 | |
d62a17ae | 859 | /* Self-originated LSAs initialize. */ |
860 | new->router_lsa_self = NULL; | |
718e3744 | 861 | |
d62a17ae | 862 | ospf_opaque_type10_lsa_init(new); |
718e3744 | 863 | |
d62a17ae | 864 | new->oiflist = list_new(); |
865 | new->ranges = route_table_init(); | |
718e3744 | 866 | |
d62a17ae | 867 | if (area_id.s_addr == OSPF_AREA_BACKBONE) |
868 | ospf->backbone = new; | |
869 | ||
870 | return new; | |
718e3744 | 871 | } |
872 | ||
d62a17ae | 873 | static void ospf_area_free(struct ospf_area *area) |
718e3744 | 874 | { |
d62a17ae | 875 | struct route_node *rn; |
876 | struct ospf_lsa *lsa; | |
877 | ||
7f7f77a0 DS |
878 | ospf_opaque_type10_lsa_term(area); |
879 | ||
d62a17ae | 880 | /* Free LSDBs. */ |
996c9314 | 881 | LSDB_LOOP (ROUTER_LSDB(area), rn, lsa) |
044506e7 | 882 | ospf_discard_from_db(area->ospf, area->lsdb, lsa); |
996c9314 | 883 | LSDB_LOOP (NETWORK_LSDB(area), rn, lsa) |
044506e7 | 884 | ospf_discard_from_db(area->ospf, area->lsdb, lsa); |
996c9314 | 885 | LSDB_LOOP (SUMMARY_LSDB(area), rn, lsa) |
044506e7 | 886 | ospf_discard_from_db(area->ospf, area->lsdb, lsa); |
996c9314 | 887 | LSDB_LOOP (ASBR_SUMMARY_LSDB(area), rn, lsa) |
044506e7 | 888 | ospf_discard_from_db(area->ospf, area->lsdb, lsa); |
68980084 | 889 | |
996c9314 | 890 | LSDB_LOOP (NSSA_LSDB(area), rn, lsa) |
044506e7 | 891 | ospf_discard_from_db(area->ospf, area->lsdb, lsa); |
996c9314 | 892 | LSDB_LOOP (OPAQUE_AREA_LSDB(area), rn, lsa) |
044506e7 | 893 | ospf_discard_from_db(area->ospf, area->lsdb, lsa); |
996c9314 | 894 | LSDB_LOOP (OPAQUE_LINK_LSDB(area), rn, lsa) |
044506e7 | 895 | ospf_discard_from_db(area->ospf, area->lsdb, lsa); |
718e3744 | 896 | |
d62a17ae | 897 | ospf_lsdb_delete_all(area->lsdb); |
898 | ospf_lsdb_free(area->lsdb); | |
718e3744 | 899 | |
d62a17ae | 900 | ospf_lsa_unlock(&area->router_lsa_self); |
718e3744 | 901 | |
d62a17ae | 902 | route_table_finish(area->ranges); |
6a154c88 | 903 | list_delete(&area->oiflist); |
718e3744 | 904 | |
d62a17ae | 905 | if (EXPORT_NAME(area)) |
906 | free(EXPORT_NAME(area)); | |
718e3744 | 907 | |
d62a17ae | 908 | if (IMPORT_NAME(area)) |
909 | free(IMPORT_NAME(area)); | |
718e3744 | 910 | |
d62a17ae | 911 | /* Cancel timer. */ |
912 | OSPF_TIMER_OFF(area->t_stub_router); | |
913 | OSPF_TIMER_OFF(area->t_opaque_lsa_self); | |
718e3744 | 914 | |
d62a17ae | 915 | if (OSPF_IS_AREA_BACKBONE(area)) |
916 | area->ospf->backbone = NULL; | |
917 | ||
918 | XFREE(MTYPE_OSPF_AREA, area); | |
718e3744 | 919 | } |
920 | ||
d62a17ae | 921 | void ospf_area_check_free(struct ospf *ospf, struct in_addr area_id) |
718e3744 | 922 | { |
d62a17ae | 923 | struct ospf_area *area; |
718e3744 | 924 | |
d62a17ae | 925 | area = ospf_area_lookup_by_area_id(ospf, area_id); |
926 | if (area && listcount(area->oiflist) == 0 && area->ranges->top == NULL | |
19ce7d5e | 927 | && !ospf_vl_count(ospf, area) |
d62a17ae | 928 | && area->shortcut_configured == OSPF_SHORTCUT_DEFAULT |
929 | && area->external_routing == OSPF_AREA_DEFAULT | |
930 | && area->no_summary == 0 && area->default_cost == 1 | |
931 | && EXPORT_NAME(area) == NULL && IMPORT_NAME(area) == NULL | |
932 | && area->auth_type == OSPF_AUTH_NULL) { | |
933 | listnode_delete(ospf->areas, area); | |
934 | ospf_area_free(area); | |
935 | } | |
718e3744 | 936 | } |
937 | ||
d62a17ae | 938 | struct ospf_area *ospf_area_get(struct ospf *ospf, struct in_addr area_id) |
718e3744 | 939 | { |
d62a17ae | 940 | struct ospf_area *area; |
941 | ||
942 | area = ospf_area_lookup_by_area_id(ospf, area_id); | |
943 | if (!area) { | |
944 | area = ospf_area_new(ospf, area_id); | |
945 | listnode_add_sort(ospf->areas, area); | |
946 | ospf_check_abr_status(ospf); | |
947 | if (ospf->stub_router_admin_set | |
948 | == OSPF_STUB_ROUTER_ADMINISTRATIVE_SET) { | |
949 | SET_FLAG(area->stub_router_state, | |
950 | OSPF_AREA_ADMIN_STUB_ROUTED); | |
951 | } | |
952 | } | |
718e3744 | 953 | |
d62a17ae | 954 | return area; |
718e3744 | 955 | } |
956 | ||
d62a17ae | 957 | struct ospf_area *ospf_area_lookup_by_area_id(struct ospf *ospf, |
958 | struct in_addr area_id) | |
718e3744 | 959 | { |
d62a17ae | 960 | struct ospf_area *area; |
961 | struct listnode *node; | |
718e3744 | 962 | |
d62a17ae | 963 | for (ALL_LIST_ELEMENTS_RO(ospf->areas, node, area)) |
964 | if (IPV4_ADDR_SAME(&area->area_id, &area_id)) | |
965 | return area; | |
718e3744 | 966 | |
d62a17ae | 967 | return NULL; |
718e3744 | 968 | } |
969 | ||
d62a17ae | 970 | void ospf_area_add_if(struct ospf_area *area, struct ospf_interface *oi) |
718e3744 | 971 | { |
d62a17ae | 972 | listnode_add(area->oiflist, oi); |
718e3744 | 973 | } |
974 | ||
d62a17ae | 975 | void ospf_area_del_if(struct ospf_area *area, struct ospf_interface *oi) |
718e3744 | 976 | { |
d62a17ae | 977 | listnode_delete(area->oiflist, oi); |
718e3744 | 978 | } |
979 | ||
52c62ab8 | 980 | |
d62a17ae | 981 | static void add_ospf_interface(struct connected *co, struct ospf_area *area) |
953cde65 | 982 | { |
d62a17ae | 983 | struct ospf_interface *oi; |
953cde65 | 984 | |
d62a17ae | 985 | oi = ospf_if_new(area->ospf, co->ifp, co->address); |
986 | oi->connected = co; | |
953cde65 | 987 | |
d62a17ae | 988 | oi->area = area; |
953cde65 | 989 | |
d62a17ae | 990 | oi->params = ospf_lookup_if_params(co->ifp, oi->address->u.prefix4); |
991 | oi->output_cost = ospf_if_get_output_cost(oi); | |
953cde65 | 992 | |
d62a17ae | 993 | /* Relate ospf interface to ospf instance. */ |
994 | oi->ospf = area->ospf; | |
953cde65 | 995 | |
d62a17ae | 996 | /* update network type as interface flag */ |
997 | /* If network type is specified previously, | |
998 | skip network type setting. */ | |
999 | oi->type = IF_DEF_PARAMS(co->ifp)->type; | |
953cde65 | 1000 | |
d62a17ae | 1001 | /* Add pseudo neighbor. */ |
1002 | ospf_nbr_self_reset(oi, oi->ospf->router_id); | |
953cde65 | 1003 | |
d62a17ae | 1004 | ospf_area_add_if(oi->area, oi); |
52c62ab8 | 1005 | |
132a782e | 1006 | /* if LDP-IGP Sync is configured globally inherit config */ |
1007 | ospf_ldp_sync_if_init(oi); | |
1008 | ||
d62a17ae | 1009 | /* |
1010 | * if router_id is not configured, dont bring up | |
1011 | * interfaces. | |
1012 | * ospf_router_id_update() will call ospf_if_update | |
1013 | * whenever r-id is configured instead. | |
1014 | */ | |
975a328e DA |
1015 | if ((area->ospf->router_id.s_addr != INADDR_ANY) |
1016 | && if_is_operative(co->ifp)) | |
d62a17ae | 1017 | ospf_if_up(oi); |
953cde65 JT |
1018 | } |
1019 | ||
1020 | static void update_redistributed(struct ospf *ospf, int add_to_ospf) | |
1021 | { | |
d62a17ae | 1022 | struct route_node *rn; |
1023 | struct external_info *ei; | |
1024 | struct ospf_external *ext; | |
1025 | ||
de1ac5fd CS |
1026 | if (ospf_is_type_redistributed(ospf, ZEBRA_ROUTE_CONNECT, 0)) { |
1027 | ext = ospf_external_lookup(ospf, ZEBRA_ROUTE_CONNECT, 0); | |
1028 | if ((ext) && EXTERNAL_INFO(ext)) { | |
d62a17ae | 1029 | for (rn = route_top(EXTERNAL_INFO(ext)); rn; |
1030 | rn = route_next(rn)) { | |
de1ac5fd CS |
1031 | ei = rn->info; |
1032 | if (ei == NULL) | |
1033 | continue; | |
1034 | ||
1035 | if (add_to_ospf) { | |
996c9314 LB |
1036 | if (ospf_external_info_find_lsa(ospf, |
1037 | &ei->p)) | |
de1ac5fd CS |
1038 | if (!ospf_distribute_check_connected( |
1039 | ospf, ei)) | |
1040 | ospf_external_lsa_flush( | |
996c9314 | 1041 | ospf, ei->type, |
de1ac5fd CS |
1042 | &ei->p, |
1043 | ei->ifindex /*, ei->nexthop */); | |
1044 | } else { | |
1045 | if (!ospf_external_info_find_lsa( | |
1046 | ospf, &ei->p)) | |
1047 | if (ospf_distribute_check_connected( | |
1048 | ospf, ei)) | |
1049 | ospf_external_lsa_originate( | |
996c9314 | 1050 | ospf, ei); |
d62a17ae | 1051 | } |
1052 | } | |
1053 | } | |
de1ac5fd | 1054 | } |
953cde65 JT |
1055 | } |
1056 | ||
718e3744 | 1057 | /* Config network statement related functions. */ |
d62a17ae | 1058 | static struct ospf_network *ospf_network_new(struct in_addr area_id) |
718e3744 | 1059 | { |
d62a17ae | 1060 | struct ospf_network *new; |
1061 | new = XCALLOC(MTYPE_OSPF_NETWORK, sizeof(struct ospf_network)); | |
718e3744 | 1062 | |
d62a17ae | 1063 | new->area_id = area_id; |
1064 | new->area_id_fmt = OSPF_AREA_ID_FMT_DOTTEDQUAD; | |
1065 | ||
1066 | return new; | |
718e3744 | 1067 | } |
1068 | ||
d62a17ae | 1069 | static void ospf_network_free(struct ospf *ospf, struct ospf_network *network) |
718e3744 | 1070 | { |
d62a17ae | 1071 | ospf_area_check_free(ospf, network->area_id); |
1072 | ospf_schedule_abr_task(ospf); | |
1073 | XFREE(MTYPE_OSPF_NETWORK, network); | |
718e3744 | 1074 | } |
1075 | ||
d62a17ae | 1076 | int ospf_network_set(struct ospf *ospf, struct prefix_ipv4 *p, |
1077 | struct in_addr area_id, int df) | |
718e3744 | 1078 | { |
d62a17ae | 1079 | struct ospf_network *network; |
1080 | struct ospf_area *area; | |
1081 | struct route_node *rn; | |
718e3744 | 1082 | |
d62a17ae | 1083 | rn = route_node_get(ospf->networks, (struct prefix *)p); |
1084 | if (rn->info) { | |
2b0a905a | 1085 | network = rn->info; |
d62a17ae | 1086 | route_unlock_node(rn); |
2b0a905a DW |
1087 | |
1088 | if (IPV4_ADDR_SAME(&area_id, &network->area_id)) { | |
1089 | return 1; | |
1090 | } else { | |
1091 | /* There is already same network statement. */ | |
1092 | return 0; | |
1093 | } | |
d62a17ae | 1094 | } |
718e3744 | 1095 | |
d62a17ae | 1096 | rn->info = network = ospf_network_new(area_id); |
1097 | network->area_id_fmt = df; | |
1098 | area = ospf_area_get(ospf, area_id); | |
1099 | ospf_area_display_format_set(ospf, area, df); | |
718e3744 | 1100 | |
d62a17ae | 1101 | /* Run network config now. */ |
1102 | ospf_network_run((struct prefix *)p, area); | |
718e3744 | 1103 | |
d62a17ae | 1104 | /* Update connected redistribute. */ |
1105 | update_redistributed(ospf, 1); /* interfaces possibly added */ | |
718e3744 | 1106 | |
d62a17ae | 1107 | ospf_area_check_free(ospf, area_id); |
718e3744 | 1108 | |
d62a17ae | 1109 | return 1; |
718e3744 | 1110 | } |
1111 | ||
d62a17ae | 1112 | int ospf_network_unset(struct ospf *ospf, struct prefix_ipv4 *p, |
1113 | struct in_addr area_id) | |
718e3744 | 1114 | { |
d62a17ae | 1115 | struct route_node *rn; |
1116 | struct ospf_network *network; | |
1117 | struct listnode *node, *nnode; | |
1118 | struct ospf_interface *oi; | |
718e3744 | 1119 | |
d62a17ae | 1120 | rn = route_node_lookup(ospf->networks, (struct prefix *)p); |
1121 | if (rn == NULL) | |
1122 | return 0; | |
718e3744 | 1123 | |
d62a17ae | 1124 | network = rn->info; |
1125 | route_unlock_node(rn); | |
1126 | if (!IPV4_ADDR_SAME(&area_id, &network->area_id)) | |
1127 | return 0; | |
718e3744 | 1128 | |
d62a17ae | 1129 | ospf_network_free(ospf, rn->info); |
1130 | rn->info = NULL; | |
1131 | route_unlock_node(rn); /* initial reference */ | |
718e3744 | 1132 | |
30c0daa4 | 1133 | /* Find interfaces that are not configured already. */ |
d62a17ae | 1134 | for (ALL_LIST_ELEMENTS(ospf->oiflist, node, nnode, oi)) { |
30c0daa4 | 1135 | |
996c9314 LB |
1136 | if (oi->type == OSPF_IFTYPE_VIRTUALLINK) |
1137 | continue; | |
30c0daa4 | 1138 | |
996c9314 | 1139 | ospf_network_run_subnet(ospf, oi->connected, NULL, NULL); |
d62a17ae | 1140 | } |
953cde65 | 1141 | |
d62a17ae | 1142 | /* Update connected redistribute. */ |
1143 | update_redistributed(ospf, 0); /* interfaces possibly removed */ | |
1144 | ospf_area_check_free(ospf, area_id); | |
1145 | ||
1146 | return 1; | |
953cde65 JT |
1147 | } |
1148 | ||
52c62ab8 JAG |
1149 | /* Ensure there's an OSPF instance, as "ip ospf area" enabled OSPF means |
1150 | * there might not be any 'router ospf' config. | |
1151 | * | |
1152 | * Otherwise, doesn't do anything different to ospf_if_update for now | |
1153 | */ | |
b5a8894d | 1154 | void ospf_interface_area_set(struct ospf *ospf, struct interface *ifp) |
953cde65 | 1155 | { |
b5a8894d CS |
1156 | if (!ospf) |
1157 | return; | |
d62a17ae | 1158 | |
1159 | ospf_if_update(ospf, ifp); | |
1160 | /* if_update does a update_redistributed */ | |
1161 | ||
1162 | return; | |
953cde65 JT |
1163 | } |
1164 | ||
b5a8894d | 1165 | void ospf_interface_area_unset(struct ospf *ospf, struct interface *ifp) |
953cde65 | 1166 | { |
d62a17ae | 1167 | struct route_node *rn_oi; |
953cde65 | 1168 | |
d62a17ae | 1169 | if (!ospf) |
1170 | return; /* Ospf not ready yet */ | |
953cde65 | 1171 | |
d62a17ae | 1172 | /* Find interfaces that may need to be removed. */ |
1173 | for (rn_oi = route_top(IF_OIFS(ifp)); rn_oi; | |
1174 | rn_oi = route_next(rn_oi)) { | |
b5a8894d | 1175 | struct ospf_interface *oi = NULL; |
d62a17ae | 1176 | |
1177 | if ((oi = rn_oi->info) == NULL) | |
1178 | continue; | |
1179 | ||
1180 | if (oi->type == OSPF_IFTYPE_VIRTUALLINK) | |
1181 | continue; | |
1182 | ||
1183 | ospf_network_run_subnet(ospf, oi->connected, NULL, NULL); | |
1184 | } | |
953cde65 | 1185 | |
d62a17ae | 1186 | /* Update connected redistribute. */ |
1187 | update_redistributed(ospf, 0); /* interfaces possibly removed */ | |
718e3744 | 1188 | } |
1189 | ||
570f7598 | 1190 | /* Check whether interface matches given network |
1191 | * returns: 1, true. 0, false | |
1192 | */ | |
d62a17ae | 1193 | static int ospf_network_match_iface(const struct connected *co, |
1194 | const struct prefix *net) | |
570f7598 | 1195 | { |
d62a17ae | 1196 | /* new approach: more elegant and conceptually clean */ |
1197 | return prefix_match_network_statement(net, CONNECTED_PREFIX(co)); | |
570f7598 | 1198 | } |
1199 | ||
d62a17ae | 1200 | static void ospf_update_interface_area(struct connected *co, |
1201 | struct ospf_area *area) | |
52c62ab8 | 1202 | { |
d62a17ae | 1203 | struct ospf_interface *oi = ospf_if_table_lookup(co->ifp, co->address); |
1204 | ||
1205 | /* nothing to be done case */ | |
1206 | if (oi && oi->area == area) { | |
1207 | return; | |
1208 | } | |
1209 | ||
1210 | if (oi) | |
1211 | ospf_if_free(oi); | |
1212 | ||
1213 | add_ospf_interface(co, area); | |
52c62ab8 JAG |
1214 | } |
1215 | ||
1216 | /* Run OSPF for the given subnet, taking into account the following | |
1217 | * possible sources of area configuration, in the given order of preference: | |
1218 | * | |
1219 | * - Whether there is interface+address specific area configuration | |
1220 | * - Whether there is a default area for the interface | |
1221 | * - Whether there is an area given as a parameter. | |
1222 | * - If no specific network prefix/area is supplied, whether there's | |
1223 | * a matching network configured. | |
1224 | */ | |
d62a17ae | 1225 | static void ospf_network_run_subnet(struct ospf *ospf, struct connected *co, |
1226 | struct prefix *p, | |
1227 | struct ospf_area *given_area) | |
1228 | { | |
1229 | struct ospf_interface *oi; | |
1230 | struct ospf_if_params *params; | |
1231 | struct ospf_area *area = NULL; | |
1232 | struct route_node *rn; | |
1233 | int configed = 0; | |
1234 | ||
1235 | if (CHECK_FLAG(co->flags, ZEBRA_IFA_SECONDARY)) | |
1236 | return; | |
1237 | ||
1238 | if (co->address->family != AF_INET) | |
1239 | return; | |
1240 | ||
1241 | /* Try determine the appropriate area for this interface + address | |
1242 | * Start by checking interface config | |
1243 | */ | |
1244 | params = ospf_lookup_if_params(co->ifp, co->address->u.prefix4); | |
1245 | if (params && OSPF_IF_PARAM_CONFIGURED(params, if_area)) | |
1246 | area = ospf_area_get(ospf, params->if_area); | |
1247 | else { | |
1248 | params = IF_DEF_PARAMS(co->ifp); | |
1249 | if (OSPF_IF_PARAM_CONFIGURED(params, if_area)) | |
1250 | area = ospf_area_get(ospf, params->if_area); | |
1251 | } | |
52c62ab8 | 1252 | |
d62a17ae | 1253 | /* If we've found an interface and/or addr specific area, then we're |
1254 | * done | |
1255 | */ | |
1256 | if (area) { | |
1257 | ospf_update_interface_area(co, area); | |
1258 | return; | |
1259 | } | |
718e3744 | 1260 | |
d62a17ae | 1261 | /* Otherwise, only remaining possibility is a matching network statement |
1262 | */ | |
1263 | if (p) { | |
1264 | assert(given_area != NULL); | |
1265 | ||
1266 | /* Which either was supplied as a parameter.. (e.g. cause a new | |
1267 | * network/area was just added).. | |
1268 | */ | |
1269 | if (p->family == co->address->family | |
1270 | && ospf_network_match_iface(co, p)) | |
1271 | ospf_update_interface_area(co, given_area); | |
1272 | ||
1273 | return; | |
1274 | } | |
1275 | ||
1276 | /* Else we have to search the existing network/area config to see | |
1277 | * if any match.. | |
1278 | */ | |
1279 | for (rn = route_top(ospf->networks); rn; rn = route_next(rn)) | |
1280 | if (rn->info != NULL && ospf_network_match_iface(co, &rn->p)) { | |
1281 | struct ospf_network *network = | |
1282 | (struct ospf_network *)rn->info; | |
1283 | area = ospf_area_get(ospf, network->area_id); | |
1284 | ospf_update_interface_area(co, area); | |
1285 | configed = 1; | |
1286 | } | |
1287 | ||
1288 | /* If the subnet isn't in any area, deconfigure */ | |
1289 | if (!configed && (oi = ospf_if_table_lookup(co->ifp, co->address))) | |
1290 | ospf_if_free(oi); | |
718e3744 | 1291 | } |
1292 | ||
d62a17ae | 1293 | static void ospf_network_run_interface(struct ospf *ospf, struct interface *ifp, |
1294 | struct prefix *p, | |
1295 | struct ospf_area *given_area) | |
718e3744 | 1296 | { |
d62a17ae | 1297 | struct listnode *cnode; |
1298 | struct connected *co; | |
1299 | ||
1300 | if (memcmp(ifp->name, "VLINK", 5) == 0) | |
1301 | return; | |
718e3744 | 1302 | |
d62a17ae | 1303 | /* Network prefix without area is nonsensical */ |
1304 | if (p) | |
1305 | assert(given_area != NULL); | |
1306 | ||
1307 | /* if interface prefix is match specified prefix, | |
1308 | then create socket and join multicast group. */ | |
1309 | for (ALL_LIST_ELEMENTS_RO(ifp->connected, cnode, co)) | |
1310 | ospf_network_run_subnet(ospf, co, p, given_area); | |
718e3744 | 1311 | } |
1312 | ||
d62a17ae | 1313 | static void ospf_network_run(struct prefix *p, struct ospf_area *area) |
718e3744 | 1314 | { |
f4e14fdb | 1315 | struct vrf *vrf = vrf_lookup_by_id(area->ospf->vrf_id); |
d62a17ae | 1316 | struct interface *ifp; |
d62a17ae | 1317 | |
1318 | /* Schedule Router ID Update. */ | |
975a328e | 1319 | if (area->ospf->router_id.s_addr == INADDR_ANY) |
d62a17ae | 1320 | ospf_router_id_update(area->ospf); |
718e3744 | 1321 | |
d62a17ae | 1322 | /* Get target interface. */ |
451fda4f | 1323 | FOR_ALL_INTERFACES (vrf, ifp) |
d62a17ae | 1324 | ospf_network_run_interface(area->ospf, ifp, p, area); |
718e3744 | 1325 | } |
1326 | ||
d62a17ae | 1327 | void ospf_ls_upd_queue_empty(struct ospf_interface *oi) |
1328 | { | |
1329 | struct route_node *rn; | |
1330 | struct listnode *node, *nnode; | |
1331 | struct list *lst; | |
1332 | struct ospf_lsa *lsa; | |
1333 | ||
1334 | /* empty ls update queue */ | |
1335 | for (rn = route_top(oi->ls_upd_queue); rn; rn = route_next(rn)) | |
1336 | if ((lst = (struct list *)rn->info)) { | |
1337 | for (ALL_LIST_ELEMENTS(lst, node, nnode, lsa)) | |
1338 | ospf_lsa_unlock(&lsa); /* oi->ls_upd_queue */ | |
6a154c88 | 1339 | list_delete(&lst); |
d62a17ae | 1340 | rn->info = NULL; |
1341 | } | |
1342 | ||
1343 | /* remove update event */ | |
b3d6bc6e | 1344 | thread_cancel(&oi->t_ls_upd_event); |
d62a17ae | 1345 | } |
6b0655a2 | 1346 | |
d62a17ae | 1347 | void ospf_if_update(struct ospf *ospf, struct interface *ifp) |
718e3744 | 1348 | { |
43b8d1d8 | 1349 | |
d62a17ae | 1350 | if (!ospf) |
43b8d1d8 | 1351 | return; |
b5a8894d CS |
1352 | |
1353 | if (IS_DEBUG_OSPF_EVENT) | |
996c9314 | 1354 | zlog_debug( |
96b663a3 | 1355 | "%s: interface %s ifp->vrf_id %u ospf vrf %s vrf_id %u router_id %pI4", |
15569c58 | 1356 | __func__, ifp->name, ifp->vrf_id, |
996c9314 | 1357 | ospf_vrf_id_to_name(ospf->vrf_id), ospf->vrf_id, |
96b663a3 | 1358 | &ospf->router_id); |
d62a17ae | 1359 | |
1360 | /* OSPF must be ready. */ | |
1361 | if (!ospf_is_ready(ospf)) | |
1362 | return; | |
1363 | ||
1364 | ospf_network_run_interface(ospf, ifp, NULL, NULL); | |
1365 | ||
1366 | /* Update connected redistribute. */ | |
1367 | update_redistributed(ospf, 1); | |
ef7bd2a3 | 1368 | |
d62a17ae | 1369 | } |
718e3744 | 1370 | |
d62a17ae | 1371 | void ospf_remove_vls_through_area(struct ospf *ospf, struct ospf_area *area) |
718e3744 | 1372 | { |
d62a17ae | 1373 | struct listnode *node, *nnode; |
1374 | struct ospf_vl_data *vl_data; | |
718e3744 | 1375 | |
d62a17ae | 1376 | for (ALL_LIST_ELEMENTS(ospf->vlinks, node, nnode, vl_data)) |
1377 | if (IPV4_ADDR_SAME(&vl_data->vl_area_id, &area->area_id)) | |
1378 | ospf_vl_delete(ospf, vl_data); | |
1379 | } | |
718e3744 | 1380 | |
718e3744 | 1381 | |
d62a17ae | 1382 | static const struct message ospf_area_type_msg[] = { |
1383 | {OSPF_AREA_DEFAULT, "Default"}, | |
1384 | {OSPF_AREA_STUB, "Stub"}, | |
1385 | {OSPF_AREA_NSSA, "NSSA"}, | |
1386 | {0}}; | |
718e3744 | 1387 | |
d62a17ae | 1388 | static void ospf_area_type_set(struct ospf_area *area, int type) |
1389 | { | |
1390 | struct listnode *node; | |
1391 | struct ospf_interface *oi; | |
1392 | ||
1393 | if (area->external_routing == type) { | |
1394 | if (IS_DEBUG_OSPF_EVENT) | |
96b663a3 MS |
1395 | zlog_debug("Area[%pI4]: Types are the same, ignored.", |
1396 | &area->area_id); | |
d62a17ae | 1397 | return; |
1398 | } | |
718e3744 | 1399 | |
d62a17ae | 1400 | area->external_routing = type; |
1401 | ||
1402 | if (IS_DEBUG_OSPF_EVENT) | |
96b663a3 MS |
1403 | zlog_debug("Area[%pI4]: Configured as %s", |
1404 | &area->area_id, | |
d62a17ae | 1405 | lookup_msg(ospf_area_type_msg, type, NULL)); |
1406 | ||
1407 | switch (area->external_routing) { | |
1408 | case OSPF_AREA_DEFAULT: | |
1409 | for (ALL_LIST_ELEMENTS_RO(area->oiflist, node, oi)) | |
1410 | if (oi->nbr_self != NULL) { | |
1411 | UNSET_FLAG(oi->nbr_self->options, | |
1412 | OSPF_OPTION_NP); | |
1413 | SET_FLAG(oi->nbr_self->options, OSPF_OPTION_E); | |
1414 | } | |
1415 | break; | |
1416 | case OSPF_AREA_STUB: | |
1417 | for (ALL_LIST_ELEMENTS_RO(area->oiflist, node, oi)) | |
1418 | if (oi->nbr_self != NULL) { | |
1419 | if (IS_DEBUG_OSPF_EVENT) | |
1420 | zlog_debug( | |
1421 | "setting options on %s accordingly", | |
1422 | IF_NAME(oi)); | |
1423 | UNSET_FLAG(oi->nbr_self->options, | |
1424 | OSPF_OPTION_NP); | |
1425 | UNSET_FLAG(oi->nbr_self->options, | |
1426 | OSPF_OPTION_E); | |
1427 | if (IS_DEBUG_OSPF_EVENT) | |
1428 | zlog_debug("options set on %s: %x", | |
1429 | IF_NAME(oi), OPTIONS(oi)); | |
1430 | } | |
1431 | break; | |
1432 | case OSPF_AREA_NSSA: | |
1433 | for (ALL_LIST_ELEMENTS_RO(area->oiflist, node, oi)) | |
1434 | if (oi->nbr_self != NULL) { | |
1435 | zlog_debug( | |
1436 | "setting nssa options on %s accordingly", | |
1437 | IF_NAME(oi)); | |
1438 | UNSET_FLAG(oi->nbr_self->options, | |
1439 | OSPF_OPTION_E); | |
1440 | SET_FLAG(oi->nbr_self->options, OSPF_OPTION_NP); | |
1441 | zlog_debug("options set on %s: %x", IF_NAME(oi), | |
1442 | OPTIONS(oi)); | |
1443 | } | |
1444 | break; | |
1445 | default: | |
1446 | break; | |
1447 | } | |
1448 | ||
1449 | ospf_router_lsa_update_area(area); | |
1450 | ospf_schedule_abr_task(area->ospf); | |
718e3744 | 1451 | } |
1452 | ||
d62a17ae | 1453 | int ospf_area_shortcut_set(struct ospf *ospf, struct ospf_area *area, int mode) |
718e3744 | 1454 | { |
d62a17ae | 1455 | if (area->shortcut_configured == mode) |
1456 | return 0; | |
718e3744 | 1457 | |
d62a17ae | 1458 | area->shortcut_configured = mode; |
1459 | ospf_router_lsa_update_area(area); | |
1460 | ospf_schedule_abr_task(ospf); | |
718e3744 | 1461 | |
d62a17ae | 1462 | ospf_area_check_free(ospf, area->area_id); |
718e3744 | 1463 | |
d62a17ae | 1464 | return 1; |
718e3744 | 1465 | } |
1466 | ||
d62a17ae | 1467 | int ospf_area_shortcut_unset(struct ospf *ospf, struct ospf_area *area) |
718e3744 | 1468 | { |
d62a17ae | 1469 | area->shortcut_configured = OSPF_SHORTCUT_DEFAULT; |
1470 | ospf_router_lsa_update_area(area); | |
1471 | ospf_area_check_free(ospf, area->area_id); | |
1472 | ospf_schedule_abr_task(ospf); | |
718e3744 | 1473 | |
d62a17ae | 1474 | return 1; |
718e3744 | 1475 | } |
1476 | ||
d62a17ae | 1477 | static int ospf_area_vlink_count(struct ospf *ospf, struct ospf_area *area) |
718e3744 | 1478 | { |
d62a17ae | 1479 | struct ospf_vl_data *vl; |
1480 | struct listnode *node; | |
1481 | int count = 0; | |
718e3744 | 1482 | |
d62a17ae | 1483 | for (ALL_LIST_ELEMENTS_RO(ospf->vlinks, node, vl)) |
1484 | if (IPV4_ADDR_SAME(&vl->vl_area_id, &area->area_id)) | |
1485 | count++; | |
718e3744 | 1486 | |
d62a17ae | 1487 | return count; |
718e3744 | 1488 | } |
1489 | ||
d62a17ae | 1490 | int ospf_area_display_format_set(struct ospf *ospf, struct ospf_area *area, |
1491 | int df) | |
86573dcb | 1492 | { |
d62a17ae | 1493 | area->area_id_fmt = df; |
86573dcb | 1494 | |
d62a17ae | 1495 | return 1; |
86573dcb QY |
1496 | } |
1497 | ||
d62a17ae | 1498 | int ospf_area_stub_set(struct ospf *ospf, struct in_addr area_id) |
718e3744 | 1499 | { |
d62a17ae | 1500 | struct ospf_area *area; |
718e3744 | 1501 | |
d62a17ae | 1502 | area = ospf_area_get(ospf, area_id); |
1503 | if (ospf_area_vlink_count(ospf, area)) | |
1504 | return 0; | |
718e3744 | 1505 | |
d62a17ae | 1506 | if (area->external_routing != OSPF_AREA_STUB) |
1507 | ospf_area_type_set(area, OSPF_AREA_STUB); | |
718e3744 | 1508 | |
d62a17ae | 1509 | return 1; |
718e3744 | 1510 | } |
1511 | ||
d62a17ae | 1512 | int ospf_area_stub_unset(struct ospf *ospf, struct in_addr area_id) |
718e3744 | 1513 | { |
d62a17ae | 1514 | struct ospf_area *area; |
718e3744 | 1515 | |
d62a17ae | 1516 | area = ospf_area_lookup_by_area_id(ospf, area_id); |
1517 | if (area == NULL) | |
1518 | return 1; | |
718e3744 | 1519 | |
d62a17ae | 1520 | if (area->external_routing == OSPF_AREA_STUB) |
1521 | ospf_area_type_set(area, OSPF_AREA_DEFAULT); | |
718e3744 | 1522 | |
d62a17ae | 1523 | ospf_area_check_free(ospf, area_id); |
718e3744 | 1524 | |
d62a17ae | 1525 | return 1; |
718e3744 | 1526 | } |
1527 | ||
d62a17ae | 1528 | int ospf_area_no_summary_set(struct ospf *ospf, struct in_addr area_id) |
718e3744 | 1529 | { |
d62a17ae | 1530 | struct ospf_area *area; |
718e3744 | 1531 | |
d62a17ae | 1532 | area = ospf_area_get(ospf, area_id); |
1533 | area->no_summary = 1; | |
718e3744 | 1534 | |
d62a17ae | 1535 | return 1; |
718e3744 | 1536 | } |
1537 | ||
d62a17ae | 1538 | int ospf_area_no_summary_unset(struct ospf *ospf, struct in_addr area_id) |
718e3744 | 1539 | { |
d62a17ae | 1540 | struct ospf_area *area; |
718e3744 | 1541 | |
d62a17ae | 1542 | area = ospf_area_lookup_by_area_id(ospf, area_id); |
1543 | if (area == NULL) | |
1544 | return 0; | |
718e3744 | 1545 | |
d62a17ae | 1546 | area->no_summary = 0; |
1547 | ospf_area_check_free(ospf, area_id); | |
718e3744 | 1548 | |
d62a17ae | 1549 | return 1; |
718e3744 | 1550 | } |
1551 | ||
7ef56a73 | 1552 | int ospf_area_nssa_no_summary_set(struct ospf *ospf, struct in_addr area_id) |
718e3744 | 1553 | { |
d62a17ae | 1554 | struct ospf_area *area; |
718e3744 | 1555 | |
d62a17ae | 1556 | area = ospf_area_get(ospf, area_id); |
1557 | if (ospf_area_vlink_count(ospf, area)) | |
1558 | return 0; | |
718e3744 | 1559 | |
d62a17ae | 1560 | if (area->external_routing != OSPF_AREA_NSSA) { |
1561 | ospf_area_type_set(area, OSPF_AREA_NSSA); | |
1562 | ospf->anyNSSA++; | |
7ef56a73 | 1563 | area->NSSATranslatorRole = OSPF_NSSA_ROLE_CANDIDATE; |
d62a17ae | 1564 | } |
718e3744 | 1565 | |
7ef56a73 | 1566 | ospf_area_no_summary_set(ospf, area_id); |
084c7844 | 1567 | |
d62a17ae | 1568 | return 1; |
718e3744 | 1569 | } |
1570 | ||
7ef56a73 CS |
1571 | int ospf_area_nssa_set(struct ospf *ospf, struct in_addr area_id) |
1572 | { | |
1573 | struct ospf_area *area; | |
1574 | ||
1575 | area = ospf_area_get(ospf, area_id); | |
1576 | if (ospf_area_vlink_count(ospf, area)) | |
1577 | return 0; | |
1578 | ||
1579 | if (area->external_routing != OSPF_AREA_NSSA) { | |
1580 | ospf_area_type_set(area, OSPF_AREA_NSSA); | |
1581 | ospf->anyNSSA++; | |
1582 | ||
1583 | /* set NSSA area defaults */ | |
1584 | area->no_summary = 0; | |
1585 | area->NSSATranslatorRole = OSPF_NSSA_ROLE_CANDIDATE; | |
1586 | area->NSSATranslatorState = OSPF_NSSA_TRANSLATE_DISABLED; | |
1587 | area->NSSATranslatorStabilityInterval = | |
1588 | OSPF_NSSA_TRANS_STABLE_DEFAULT; | |
1589 | } | |
1590 | return 1; | |
1591 | } | |
1592 | ||
1593 | int ospf_area_nssa_unset(struct ospf *ospf, struct in_addr area_id, int argc) | |
718e3744 | 1594 | { |
d62a17ae | 1595 | struct ospf_area *area; |
718e3744 | 1596 | |
d62a17ae | 1597 | area = ospf_area_lookup_by_area_id(ospf, area_id); |
1598 | if (area == NULL) | |
1599 | return 0; | |
718e3744 | 1600 | |
7ef56a73 CS |
1601 | /* argc < 5 -> 'no area x nssa' */ |
1602 | if (argc < 5 && area->external_routing == OSPF_AREA_NSSA) { | |
d62a17ae | 1603 | ospf->anyNSSA--; |
7ef56a73 CS |
1604 | /* set NSSA area defaults */ |
1605 | area->no_summary = 0; | |
1606 | area->NSSATranslatorRole = OSPF_NSSA_ROLE_CANDIDATE; | |
1607 | area->NSSATranslatorState = OSPF_NSSA_TRANSLATE_DISABLED; | |
1608 | area->NSSATranslatorStabilityInterval = | |
1609 | OSPF_NSSA_TRANS_STABLE_DEFAULT; | |
d62a17ae | 1610 | ospf_area_type_set(area, OSPF_AREA_DEFAULT); |
7ef56a73 | 1611 | } else { |
a987fe6b | 1612 | ospf_area_nssa_translator_role_set(ospf, area_id, |
1613 | OSPF_NSSA_ROLE_CANDIDATE); | |
d62a17ae | 1614 | } |
718e3744 | 1615 | |
d62a17ae | 1616 | ospf_area_check_free(ospf, area_id); |
718e3744 | 1617 | |
d62a17ae | 1618 | return 1; |
718e3744 | 1619 | } |
1620 | ||
d62a17ae | 1621 | int ospf_area_nssa_translator_role_set(struct ospf *ospf, |
1622 | struct in_addr area_id, int role) | |
718e3744 | 1623 | { |
d62a17ae | 1624 | struct ospf_area *area; |
718e3744 | 1625 | |
d62a17ae | 1626 | area = ospf_area_lookup_by_area_id(ospf, area_id); |
1627 | if (area == NULL) | |
1628 | return 0; | |
718e3744 | 1629 | |
a987fe6b | 1630 | if (role != area->NSSATranslatorRole) { |
1631 | if ((area->NSSATranslatorRole == OSPF_NSSA_ROLE_ALWAYS) | |
1632 | || (role == OSPF_NSSA_ROLE_ALWAYS)) { | |
1633 | /* RFC 3101 3.1 | |
1634 | * if new role is OSPF_NSSA_ROLE_ALWAYS we need to set | |
1635 | * Nt bit, if the role was OSPF_NSSA_ROLE_ALWAYS we need | |
1636 | * to clear Nt bit | |
1637 | */ | |
1638 | area->NSSATranslatorRole = role; | |
1639 | ospf_router_lsa_update_area(area); | |
1640 | } else | |
1641 | area->NSSATranslatorRole = role; | |
1642 | } | |
718e3744 | 1643 | |
d62a17ae | 1644 | return 1; |
718e3744 | 1645 | } |
1646 | ||
075e12f5 | 1647 | #if 0 |
4dadc291 | 1648 | /* XXX: unused? Leave for symmetry? */ |
1649 | static int | |
718e3744 | 1650 | ospf_area_nssa_translator_role_unset (struct ospf *ospf, |
1651 | struct in_addr area_id) | |
1652 | { | |
1653 | struct ospf_area *area; | |
1654 | ||
68980084 | 1655 | area = ospf_area_lookup_by_area_id (ospf, area_id); |
718e3744 | 1656 | if (area == NULL) |
1657 | return 0; | |
1658 | ||
084c7844 | 1659 | area->NSSATranslatorRole = OSPF_NSSA_ROLE_CANDIDATE; |
718e3744 | 1660 | |
68980084 | 1661 | ospf_area_check_free (ospf, area_id); |
718e3744 | 1662 | |
1663 | return 1; | |
1664 | } | |
075e12f5 | 1665 | #endif |
718e3744 | 1666 | |
d62a17ae | 1667 | int ospf_area_export_list_set(struct ospf *ospf, struct ospf_area *area, |
1668 | const char *list_name) | |
718e3744 | 1669 | { |
d62a17ae | 1670 | struct access_list *list; |
1671 | list = access_list_lookup(AFI_IP, list_name); | |
718e3744 | 1672 | |
d62a17ae | 1673 | EXPORT_LIST(area) = list; |
718e3744 | 1674 | |
d62a17ae | 1675 | if (EXPORT_NAME(area)) |
1676 | free(EXPORT_NAME(area)); | |
718e3744 | 1677 | |
d62a17ae | 1678 | EXPORT_NAME(area) = strdup(list_name); |
1679 | ospf_schedule_abr_task(ospf); | |
718e3744 | 1680 | |
d62a17ae | 1681 | return 1; |
718e3744 | 1682 | } |
1683 | ||
d62a17ae | 1684 | int ospf_area_export_list_unset(struct ospf *ospf, struct ospf_area *area) |
718e3744 | 1685 | { |
1686 | ||
d62a17ae | 1687 | EXPORT_LIST(area) = 0; |
718e3744 | 1688 | |
d62a17ae | 1689 | if (EXPORT_NAME(area)) |
1690 | free(EXPORT_NAME(area)); | |
718e3744 | 1691 | |
d62a17ae | 1692 | EXPORT_NAME(area) = NULL; |
718e3744 | 1693 | |
d62a17ae | 1694 | ospf_area_check_free(ospf, area->area_id); |
718e3744 | 1695 | |
d62a17ae | 1696 | ospf_schedule_abr_task(ospf); |
1697 | ||
1698 | return 1; | |
718e3744 | 1699 | } |
1700 | ||
d62a17ae | 1701 | int ospf_area_import_list_set(struct ospf *ospf, struct ospf_area *area, |
1702 | const char *name) | |
718e3744 | 1703 | { |
d62a17ae | 1704 | struct access_list *list; |
1705 | list = access_list_lookup(AFI_IP, name); | |
718e3744 | 1706 | |
d62a17ae | 1707 | IMPORT_LIST(area) = list; |
718e3744 | 1708 | |
d62a17ae | 1709 | if (IMPORT_NAME(area)) |
1710 | free(IMPORT_NAME(area)); | |
718e3744 | 1711 | |
d62a17ae | 1712 | IMPORT_NAME(area) = strdup(name); |
1713 | ospf_schedule_abr_task(ospf); | |
718e3744 | 1714 | |
d62a17ae | 1715 | return 1; |
718e3744 | 1716 | } |
1717 | ||
d62a17ae | 1718 | int ospf_area_import_list_unset(struct ospf *ospf, struct ospf_area *area) |
718e3744 | 1719 | { |
d62a17ae | 1720 | IMPORT_LIST(area) = 0; |
718e3744 | 1721 | |
d62a17ae | 1722 | if (IMPORT_NAME(area)) |
1723 | free(IMPORT_NAME(area)); | |
718e3744 | 1724 | |
d62a17ae | 1725 | IMPORT_NAME(area) = NULL; |
1726 | ospf_area_check_free(ospf, area->area_id); | |
718e3744 | 1727 | |
d62a17ae | 1728 | ospf_schedule_abr_task(ospf); |
718e3744 | 1729 | |
d62a17ae | 1730 | return 1; |
718e3744 | 1731 | } |
1732 | ||
d62a17ae | 1733 | int ospf_timers_refresh_set(struct ospf *ospf, int interval) |
718e3744 | 1734 | { |
d62a17ae | 1735 | int time_left; |
718e3744 | 1736 | |
d62a17ae | 1737 | if (ospf->lsa_refresh_interval == interval) |
1738 | return 1; | |
718e3744 | 1739 | |
d62a17ae | 1740 | time_left = ospf->lsa_refresh_interval |
1741 | - (monotime(NULL) - ospf->lsa_refresher_started); | |
718e3744 | 1742 | |
d62a17ae | 1743 | if (time_left > interval) { |
1744 | OSPF_TIMER_OFF(ospf->t_lsa_refresher); | |
1745 | thread_add_timer(master, ospf_lsa_refresh_walker, ospf, | |
1746 | interval, &ospf->t_lsa_refresher); | |
1747 | } | |
1748 | ospf->lsa_refresh_interval = interval; | |
1749 | ||
1750 | return 1; | |
718e3744 | 1751 | } |
1752 | ||
d62a17ae | 1753 | int ospf_timers_refresh_unset(struct ospf *ospf) |
718e3744 | 1754 | { |
d62a17ae | 1755 | int time_left; |
718e3744 | 1756 | |
d62a17ae | 1757 | time_left = ospf->lsa_refresh_interval |
1758 | - (monotime(NULL) - ospf->lsa_refresher_started); | |
718e3744 | 1759 | |
d62a17ae | 1760 | if (time_left > OSPF_LSA_REFRESH_INTERVAL_DEFAULT) { |
1761 | OSPF_TIMER_OFF(ospf->t_lsa_refresher); | |
1762 | ospf->t_lsa_refresher = NULL; | |
1763 | thread_add_timer(master, ospf_lsa_refresh_walker, ospf, | |
1764 | OSPF_LSA_REFRESH_INTERVAL_DEFAULT, | |
1765 | &ospf->t_lsa_refresher); | |
1766 | } | |
718e3744 | 1767 | |
d62a17ae | 1768 | ospf->lsa_refresh_interval = OSPF_LSA_REFRESH_INTERVAL_DEFAULT; |
718e3744 | 1769 | |
d62a17ae | 1770 | return 1; |
718e3744 | 1771 | } |
1772 | ||
6b0655a2 | 1773 | |
d62a17ae | 1774 | static struct ospf_nbr_nbma *ospf_nbr_nbma_new(void) |
718e3744 | 1775 | { |
d62a17ae | 1776 | struct ospf_nbr_nbma *nbr_nbma; |
718e3744 | 1777 | |
d62a17ae | 1778 | nbr_nbma = XCALLOC(MTYPE_OSPF_NEIGHBOR_STATIC, |
1779 | sizeof(struct ospf_nbr_nbma)); | |
718e3744 | 1780 | |
d62a17ae | 1781 | nbr_nbma->priority = OSPF_NEIGHBOR_PRIORITY_DEFAULT; |
1782 | nbr_nbma->v_poll = OSPF_POLL_INTERVAL_DEFAULT; | |
718e3744 | 1783 | |
d62a17ae | 1784 | return nbr_nbma; |
718e3744 | 1785 | } |
1786 | ||
d62a17ae | 1787 | static void ospf_nbr_nbma_free(struct ospf_nbr_nbma *nbr_nbma) |
718e3744 | 1788 | { |
d62a17ae | 1789 | XFREE(MTYPE_OSPF_NEIGHBOR_STATIC, nbr_nbma); |
718e3744 | 1790 | } |
1791 | ||
d62a17ae | 1792 | static void ospf_nbr_nbma_delete(struct ospf *ospf, |
1793 | struct ospf_nbr_nbma *nbr_nbma) | |
718e3744 | 1794 | { |
d62a17ae | 1795 | struct route_node *rn; |
1796 | struct prefix_ipv4 p; | |
718e3744 | 1797 | |
d62a17ae | 1798 | p.family = AF_INET; |
1799 | p.prefix = nbr_nbma->addr; | |
1800 | p.prefixlen = IPV4_MAX_BITLEN; | |
718e3744 | 1801 | |
d62a17ae | 1802 | rn = route_node_lookup(ospf->nbr_nbma, (struct prefix *)&p); |
1803 | if (rn) { | |
1804 | ospf_nbr_nbma_free(rn->info); | |
1805 | rn->info = NULL; | |
1806 | route_unlock_node(rn); | |
1807 | route_unlock_node(rn); | |
1808 | } | |
718e3744 | 1809 | } |
1810 | ||
d62a17ae | 1811 | static void ospf_nbr_nbma_down(struct ospf_nbr_nbma *nbr_nbma) |
718e3744 | 1812 | { |
d62a17ae | 1813 | OSPF_TIMER_OFF(nbr_nbma->t_poll); |
718e3744 | 1814 | |
d62a17ae | 1815 | if (nbr_nbma->nbr) { |
1816 | nbr_nbma->nbr->nbr_nbma = NULL; | |
1817 | OSPF_NSM_EVENT_EXECUTE(nbr_nbma->nbr, NSM_KillNbr); | |
1818 | } | |
718e3744 | 1819 | |
d62a17ae | 1820 | if (nbr_nbma->oi) |
1821 | listnode_delete(nbr_nbma->oi->nbr_nbma, nbr_nbma); | |
718e3744 | 1822 | } |
1823 | ||
d62a17ae | 1824 | static void ospf_nbr_nbma_add(struct ospf_nbr_nbma *nbr_nbma, |
1825 | struct ospf_interface *oi) | |
718e3744 | 1826 | { |
d62a17ae | 1827 | struct ospf_neighbor *nbr; |
1828 | struct route_node *rn; | |
1829 | struct prefix p; | |
718e3744 | 1830 | |
d62a17ae | 1831 | if (oi->type != OSPF_IFTYPE_NBMA) |
1832 | return; | |
718e3744 | 1833 | |
d62a17ae | 1834 | if (nbr_nbma->nbr != NULL) |
1835 | return; | |
718e3744 | 1836 | |
d62a17ae | 1837 | if (IPV4_ADDR_SAME(&oi->nbr_self->address.u.prefix4, &nbr_nbma->addr)) |
1838 | return; | |
718e3744 | 1839 | |
d62a17ae | 1840 | nbr_nbma->oi = oi; |
1841 | listnode_add(oi->nbr_nbma, nbr_nbma); | |
718e3744 | 1842 | |
d62a17ae | 1843 | /* Get neighbor information from table. */ |
1844 | p.family = AF_INET; | |
1845 | p.prefixlen = IPV4_MAX_BITLEN; | |
1846 | p.u.prefix4 = nbr_nbma->addr; | |
718e3744 | 1847 | |
c4efd0f4 | 1848 | rn = route_node_get(oi->nbrs, &p); |
d62a17ae | 1849 | if (rn->info) { |
1850 | nbr = rn->info; | |
1851 | nbr->nbr_nbma = nbr_nbma; | |
1852 | nbr_nbma->nbr = nbr; | |
718e3744 | 1853 | |
d62a17ae | 1854 | route_unlock_node(rn); |
1855 | } else { | |
1856 | nbr = rn->info = ospf_nbr_new(oi); | |
1857 | nbr->state = NSM_Down; | |
1858 | nbr->src = nbr_nbma->addr; | |
1859 | nbr->nbr_nbma = nbr_nbma; | |
1860 | nbr->priority = nbr_nbma->priority; | |
1861 | nbr->address = p; | |
718e3744 | 1862 | |
d62a17ae | 1863 | nbr_nbma->nbr = nbr; |
1864 | ||
1865 | OSPF_NSM_EVENT_EXECUTE(nbr, NSM_Start); | |
1866 | } | |
718e3744 | 1867 | } |
1868 | ||
d62a17ae | 1869 | void ospf_nbr_nbma_if_update(struct ospf *ospf, struct ospf_interface *oi) |
718e3744 | 1870 | { |
d62a17ae | 1871 | struct ospf_nbr_nbma *nbr_nbma; |
1872 | struct route_node *rn; | |
1873 | struct prefix_ipv4 p; | |
718e3744 | 1874 | |
d62a17ae | 1875 | if (oi->type != OSPF_IFTYPE_NBMA) |
1876 | return; | |
718e3744 | 1877 | |
d62a17ae | 1878 | for (rn = route_top(ospf->nbr_nbma); rn; rn = route_next(rn)) |
1879 | if ((nbr_nbma = rn->info)) | |
1880 | if (nbr_nbma->oi == NULL && nbr_nbma->nbr == NULL) { | |
1881 | p.family = AF_INET; | |
1882 | p.prefix = nbr_nbma->addr; | |
1883 | p.prefixlen = IPV4_MAX_BITLEN; | |
718e3744 | 1884 | |
d62a17ae | 1885 | if (prefix_match(oi->address, |
1886 | (struct prefix *)&p)) | |
1887 | ospf_nbr_nbma_add(nbr_nbma, oi); | |
1888 | } | |
718e3744 | 1889 | } |
1890 | ||
d62a17ae | 1891 | struct ospf_nbr_nbma *ospf_nbr_nbma_lookup(struct ospf *ospf, |
1892 | struct in_addr nbr_addr) | |
718e3744 | 1893 | { |
d62a17ae | 1894 | struct route_node *rn; |
1895 | struct prefix_ipv4 p; | |
718e3744 | 1896 | |
d62a17ae | 1897 | p.family = AF_INET; |
1898 | p.prefix = nbr_addr; | |
1899 | p.prefixlen = IPV4_MAX_BITLEN; | |
718e3744 | 1900 | |
d62a17ae | 1901 | rn = route_node_lookup(ospf->nbr_nbma, (struct prefix *)&p); |
1902 | if (rn) { | |
1903 | route_unlock_node(rn); | |
1904 | return rn->info; | |
1905 | } | |
1906 | return NULL; | |
718e3744 | 1907 | } |
1908 | ||
d62a17ae | 1909 | struct ospf_nbr_nbma *ospf_nbr_nbma_lookup_next(struct ospf *ospf, |
1910 | struct in_addr *addr, int first) | |
718e3744 | 1911 | { |
1912 | #if 0 | |
1913 | struct ospf_nbr_nbma *nbr_nbma; | |
52dc7ee6 | 1914 | struct listnode *node; |
718e3744 | 1915 | #endif |
1916 | ||
d62a17ae | 1917 | if (ospf == NULL) |
1918 | return NULL; | |
718e3744 | 1919 | |
1920 | #if 0 | |
1eb8ef25 | 1921 | for (ALL_LIST_ELEMENTS_RO (ospf->nbr_nbma, node, nbr_nbma)) |
718e3744 | 1922 | { |
718e3744 | 1923 | if (first) |
1924 | { | |
1925 | *addr = nbr_nbma->addr; | |
1926 | return nbr_nbma; | |
1927 | } | |
1928 | else if (ntohl (nbr_nbma->addr.s_addr) > ntohl (addr->s_addr)) | |
1929 | { | |
1930 | *addr = nbr_nbma->addr; | |
1931 | return nbr_nbma; | |
1932 | } | |
1933 | } | |
1934 | #endif | |
d62a17ae | 1935 | return NULL; |
718e3744 | 1936 | } |
1937 | ||
d62a17ae | 1938 | int ospf_nbr_nbma_set(struct ospf *ospf, struct in_addr nbr_addr) |
718e3744 | 1939 | { |
d62a17ae | 1940 | struct ospf_nbr_nbma *nbr_nbma; |
1941 | struct ospf_interface *oi; | |
1942 | struct prefix_ipv4 p; | |
1943 | struct route_node *rn; | |
1944 | struct listnode *node; | |
718e3744 | 1945 | |
d62a17ae | 1946 | nbr_nbma = ospf_nbr_nbma_lookup(ospf, nbr_addr); |
1947 | if (nbr_nbma) | |
1948 | return 0; | |
718e3744 | 1949 | |
d62a17ae | 1950 | nbr_nbma = ospf_nbr_nbma_new(); |
1951 | nbr_nbma->addr = nbr_addr; | |
718e3744 | 1952 | |
d62a17ae | 1953 | p.family = AF_INET; |
1954 | p.prefix = nbr_addr; | |
1955 | p.prefixlen = IPV4_MAX_BITLEN; | |
718e3744 | 1956 | |
d62a17ae | 1957 | rn = route_node_get(ospf->nbr_nbma, (struct prefix *)&p); |
1958 | if (rn->info) | |
1959 | route_unlock_node(rn); | |
1960 | rn->info = nbr_nbma; | |
718e3744 | 1961 | |
d62a17ae | 1962 | for (ALL_LIST_ELEMENTS_RO(ospf->oiflist, node, oi)) { |
1963 | if (oi->type == OSPF_IFTYPE_NBMA) | |
1964 | if (prefix_match(oi->address, (struct prefix *)&p)) { | |
1965 | ospf_nbr_nbma_add(nbr_nbma, oi); | |
1966 | break; | |
1967 | } | |
1968 | } | |
718e3744 | 1969 | |
d62a17ae | 1970 | return 1; |
718e3744 | 1971 | } |
1972 | ||
d62a17ae | 1973 | int ospf_nbr_nbma_unset(struct ospf *ospf, struct in_addr nbr_addr) |
718e3744 | 1974 | { |
d62a17ae | 1975 | struct ospf_nbr_nbma *nbr_nbma; |
718e3744 | 1976 | |
d62a17ae | 1977 | nbr_nbma = ospf_nbr_nbma_lookup(ospf, nbr_addr); |
1978 | if (nbr_nbma == NULL) | |
1979 | return 0; | |
718e3744 | 1980 | |
d62a17ae | 1981 | ospf_nbr_nbma_down(nbr_nbma); |
1982 | ospf_nbr_nbma_delete(ospf, nbr_nbma); | |
718e3744 | 1983 | |
d62a17ae | 1984 | return 1; |
718e3744 | 1985 | } |
1986 | ||
d62a17ae | 1987 | int ospf_nbr_nbma_priority_set(struct ospf *ospf, struct in_addr nbr_addr, |
d7c0a89a | 1988 | uint8_t priority) |
718e3744 | 1989 | { |
d62a17ae | 1990 | struct ospf_nbr_nbma *nbr_nbma; |
718e3744 | 1991 | |
d62a17ae | 1992 | nbr_nbma = ospf_nbr_nbma_lookup(ospf, nbr_addr); |
1993 | if (nbr_nbma == NULL) | |
1994 | return 0; | |
718e3744 | 1995 | |
d62a17ae | 1996 | if (nbr_nbma->priority != priority) |
1997 | nbr_nbma->priority = priority; | |
718e3744 | 1998 | |
d62a17ae | 1999 | return 1; |
718e3744 | 2000 | } |
2001 | ||
d62a17ae | 2002 | int ospf_nbr_nbma_priority_unset(struct ospf *ospf, struct in_addr nbr_addr) |
718e3744 | 2003 | { |
d62a17ae | 2004 | struct ospf_nbr_nbma *nbr_nbma; |
718e3744 | 2005 | |
d62a17ae | 2006 | nbr_nbma = ospf_nbr_nbma_lookup(ospf, nbr_addr); |
2007 | if (nbr_nbma == NULL) | |
2008 | return 0; | |
718e3744 | 2009 | |
d62a17ae | 2010 | if (nbr_nbma != OSPF_NEIGHBOR_PRIORITY_DEFAULT) |
2011 | nbr_nbma->priority = OSPF_NEIGHBOR_PRIORITY_DEFAULT; | |
718e3744 | 2012 | |
d62a17ae | 2013 | return 1; |
718e3744 | 2014 | } |
2015 | ||
d62a17ae | 2016 | int ospf_nbr_nbma_poll_interval_set(struct ospf *ospf, struct in_addr nbr_addr, |
2017 | unsigned int interval) | |
718e3744 | 2018 | { |
d62a17ae | 2019 | struct ospf_nbr_nbma *nbr_nbma; |
718e3744 | 2020 | |
d62a17ae | 2021 | nbr_nbma = ospf_nbr_nbma_lookup(ospf, nbr_addr); |
2022 | if (nbr_nbma == NULL) | |
2023 | return 0; | |
718e3744 | 2024 | |
d62a17ae | 2025 | if (nbr_nbma->v_poll != interval) { |
2026 | nbr_nbma->v_poll = interval; | |
2027 | if (nbr_nbma->oi && ospf_if_is_up(nbr_nbma->oi)) { | |
2028 | OSPF_TIMER_OFF(nbr_nbma->t_poll); | |
2029 | OSPF_POLL_TIMER_ON(nbr_nbma->t_poll, ospf_poll_timer, | |
2030 | nbr_nbma->v_poll); | |
2031 | } | |
718e3744 | 2032 | } |
718e3744 | 2033 | |
d62a17ae | 2034 | return 1; |
718e3744 | 2035 | } |
2036 | ||
d62a17ae | 2037 | int ospf_nbr_nbma_poll_interval_unset(struct ospf *ospf, struct in_addr addr) |
718e3744 | 2038 | { |
d62a17ae | 2039 | struct ospf_nbr_nbma *nbr_nbma; |
718e3744 | 2040 | |
d62a17ae | 2041 | nbr_nbma = ospf_nbr_nbma_lookup(ospf, addr); |
2042 | if (nbr_nbma == NULL) | |
2043 | return 0; | |
718e3744 | 2044 | |
d62a17ae | 2045 | if (nbr_nbma->v_poll != OSPF_POLL_INTERVAL_DEFAULT) |
2046 | nbr_nbma->v_poll = OSPF_POLL_INTERVAL_DEFAULT; | |
718e3744 | 2047 | |
d62a17ae | 2048 | return 1; |
718e3744 | 2049 | } |
2050 | ||
d62a17ae | 2051 | void ospf_master_init(struct thread_master *master) |
718e3744 | 2052 | { |
d62a17ae | 2053 | memset(&ospf_master, 0, sizeof(struct ospf_master)); |
020709f9 | 2054 | |
d62a17ae | 2055 | om = &ospf_master; |
2056 | om->ospf = list_new(); | |
2057 | om->master = master; | |
020709f9 | 2058 | } |
b5a8894d CS |
2059 | |
2060 | /* Link OSPF instance to VRF. */ | |
2061 | void ospf_vrf_link(struct ospf *ospf, struct vrf *vrf) | |
2062 | { | |
2063 | ospf->vrf_id = vrf->vrf_id; | |
2064 | if (vrf->info != (void *)ospf) | |
2065 | vrf->info = (void *)ospf; | |
2066 | } | |
2067 | ||
2068 | /* Unlink OSPF instance from VRF. */ | |
2069 | void ospf_vrf_unlink(struct ospf *ospf, struct vrf *vrf) | |
2070 | { | |
2071 | if (vrf->info == (void *)ospf) | |
2072 | vrf->info = NULL; | |
2073 | ospf->vrf_id = VRF_UNKNOWN; | |
2074 | } | |
2075 | ||
2076 | /* This is hook function for vrf create called as part of vrf_init */ | |
2077 | static int ospf_vrf_new(struct vrf *vrf) | |
2078 | { | |
2079 | if (IS_DEBUG_OSPF_EVENT) | |
15569c58 DA |
2080 | zlog_debug("%s: VRF Created: %s(%u)", __func__, vrf->name, |
2081 | vrf->vrf_id); | |
b5a8894d CS |
2082 | |
2083 | return 0; | |
2084 | } | |
2085 | ||
2086 | /* This is hook function for vrf delete call as part of vrf_init */ | |
2087 | static int ospf_vrf_delete(struct vrf *vrf) | |
2088 | { | |
2089 | if (IS_DEBUG_OSPF_EVENT) | |
15569c58 DA |
2090 | zlog_debug("%s: VRF Deletion: %s(%u)", __func__, vrf->name, |
2091 | vrf->vrf_id); | |
b5a8894d CS |
2092 | |
2093 | return 0; | |
2094 | } | |
2095 | ||
3d9f7302 PZ |
2096 | static void ospf_set_redist_vrf_bitmaps(struct ospf *ospf) |
2097 | { | |
2098 | int type; | |
2099 | struct list *red_list; | |
2100 | ||
2101 | for (type = 0; type < ZEBRA_ROUTE_MAX; type++) { | |
2102 | red_list = ospf->redist[type]; | |
2103 | if (!red_list) | |
2104 | continue; | |
2105 | if (IS_DEBUG_OSPF_EVENT) | |
2106 | zlog_debug( | |
2107 | "%s: setting redist vrf %d bitmap for type %d", | |
2108 | __func__, ospf->vrf_id, type); | |
2109 | vrf_bitmap_set(zclient->redist[AFI_IP][type], ospf->vrf_id); | |
2110 | } | |
2111 | } | |
2112 | ||
b5a8894d CS |
2113 | /* Enable OSPF VRF instance */ |
2114 | static int ospf_vrf_enable(struct vrf *vrf) | |
2115 | { | |
2116 | struct ospf *ospf = NULL; | |
7d206035 | 2117 | vrf_id_t old_vrf_id; |
3c0eb8fa | 2118 | int ret = 0; |
b5a8894d CS |
2119 | |
2120 | if (IS_DEBUG_OSPF_EVENT) | |
5e81f5dd DS |
2121 | zlog_debug("%s: VRF %s id %u enabled", __func__, vrf->name, |
2122 | vrf->vrf_id); | |
b5a8894d CS |
2123 | |
2124 | ospf = ospf_lookup_by_name(vrf->name); | |
2125 | if (ospf) { | |
6895b354 PG |
2126 | if (ospf->name && strmatch(vrf->name, VRF_DEFAULT_NAME)) { |
2127 | XFREE(MTYPE_OSPF_TOP, ospf->name); | |
2128 | ospf->name = NULL; | |
2129 | } | |
b5a8894d CS |
2130 | old_vrf_id = ospf->vrf_id; |
2131 | /* We have instance configured, link to VRF and make it "up". */ | |
2132 | ospf_vrf_link(ospf, vrf); | |
2133 | if (IS_DEBUG_OSPF_EVENT) | |
996c9314 LB |
2134 | zlog_debug( |
2135 | "%s: ospf linked to vrf %s vrf_id %u (old id %u)", | |
5e81f5dd | 2136 | __func__, vrf->name, ospf->vrf_id, old_vrf_id); |
b5a8894d CS |
2137 | |
2138 | if (old_vrf_id != ospf->vrf_id) { | |
0cf6db21 | 2139 | frr_with_privs(&ospfd_privs) { |
6bb30c2c DL |
2140 | /* stop zebra redist to us for old vrf */ |
2141 | zclient_send_dereg_requests(zclient, | |
2142 | old_vrf_id); | |
3d9f7302 | 2143 | |
6bb30c2c | 2144 | ospf_set_redist_vrf_bitmaps(ospf); |
3d9f7302 | 2145 | |
6bb30c2c DL |
2146 | /* start zebra redist to us for new vrf */ |
2147 | ospf_zebra_vrf_register(ospf); | |
313d7993 | 2148 | |
6bb30c2c DL |
2149 | ret = ospf_sock_init(ospf); |
2150 | } | |
3c0eb8fa PG |
2151 | if (ret < 0 || ospf->fd <= 0) |
2152 | return 0; | |
996c9314 LB |
2153 | thread_add_read(master, ospf_read, ospf, ospf->fd, |
2154 | &ospf->t_read); | |
b5a8894d CS |
2155 | ospf->oi_running = 1; |
2156 | ospf_router_id_update(ospf); | |
2157 | } | |
2158 | } | |
2159 | ||
2160 | return 0; | |
2161 | } | |
2162 | ||
2163 | /* Disable OSPF VRF instance */ | |
2164 | static int ospf_vrf_disable(struct vrf *vrf) | |
2165 | { | |
2166 | struct ospf *ospf = NULL; | |
2167 | vrf_id_t old_vrf_id = VRF_UNKNOWN; | |
2168 | ||
2169 | if (vrf->vrf_id == VRF_DEFAULT) | |
2170 | return 0; | |
2171 | ||
2172 | if (IS_DEBUG_OSPF_EVENT) | |
15569c58 DA |
2173 | zlog_debug("%s: VRF %s id %d disabled.", __func__, vrf->name, |
2174 | vrf->vrf_id); | |
b5a8894d CS |
2175 | |
2176 | ospf = ospf_lookup_by_name(vrf->name); | |
2177 | if (ospf) { | |
2178 | old_vrf_id = ospf->vrf_id; | |
2179 | ||
2180 | /* We have instance configured, unlink | |
2181 | * from VRF and make it "down". | |
2182 | */ | |
2183 | ospf_vrf_unlink(ospf, vrf); | |
2184 | ospf->oi_running = 0; | |
2185 | if (IS_DEBUG_OSPF_EVENT) | |
15569c58 DA |
2186 | zlog_debug("%s: ospf old_vrf_id %d unlinked", __func__, |
2187 | old_vrf_id); | |
b3d6bc6e | 2188 | thread_cancel(&ospf->t_read); |
3c0eb8fa PG |
2189 | close(ospf->fd); |
2190 | ospf->fd = -1; | |
b5a8894d CS |
2191 | } |
2192 | ||
2193 | /* Note: This is a callback, the VRF will be deleted by the caller. */ | |
2194 | return 0; | |
2195 | } | |
2196 | ||
2197 | void ospf_vrf_init(void) | |
2198 | { | |
996c9314 | 2199 | vrf_init(ospf_vrf_new, ospf_vrf_enable, ospf_vrf_disable, |
b5c056fa | 2200 | ospf_vrf_delete, ospf_vrf_enable); |
b5a8894d CS |
2201 | } |
2202 | ||
2203 | void ospf_vrf_terminate(void) | |
2204 | { | |
2205 | vrf_terminate(); | |
2206 | } | |
2207 | ||
2208 | const char *ospf_vrf_id_to_name(vrf_id_t vrf_id) | |
2209 | { | |
2210 | struct vrf *vrf = vrf_lookup_by_id(vrf_id); | |
2211 | ||
2212 | return vrf ? vrf->name : "NIL"; | |
2213 | } | |
88b6b28e DS |
2214 | |
2215 | const char *ospf_get_name(const struct ospf *ospf) | |
2216 | { | |
2217 | if (ospf->name) | |
2218 | return ospf->name; | |
2219 | else | |
2220 | return VRF_DEFAULT_NAME; | |
2221 | } |