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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 | |
7fd0729f G |
90 | int p_spaces_compare_func(const struct p_space *a, const struct p_space *b) |
91 | { | |
385a1e07 G |
92 | if (a->protected_resource->type == OSPF_TI_LFA_LINK_PROTECTION |
93 | && b->protected_resource->type == OSPF_TI_LFA_LINK_PROTECTION) | |
94 | return (a->protected_resource->link->link_id.s_addr | |
95 | - b->protected_resource->link->link_id.s_addr); | |
96 | ||
97 | if (a->protected_resource->type == OSPF_TI_LFA_NODE_PROTECTION | |
98 | && b->protected_resource->type == OSPF_TI_LFA_NODE_PROTECTION) | |
99 | return (a->protected_resource->router_id.s_addr | |
100 | - b->protected_resource->router_id.s_addr); | |
101 | ||
102 | /* This should not happen */ | |
103 | return 0; | |
7fd0729f G |
104 | } |
105 | ||
106 | int q_spaces_compare_func(const struct q_space *a, const struct q_space *b) | |
107 | { | |
108 | return (a->root->id.s_addr - b->root->id.s_addr); | |
109 | } | |
110 | ||
111 | DECLARE_RBTREE_UNIQ(p_spaces, struct p_space, p_spaces_item, | |
112 | p_spaces_compare_func) | |
113 | ||
f91ce319 | 114 | void ospf_process_refresh_data(struct ospf *ospf, bool reset) |
718e3744 | 115 | { |
f4e14fdb | 116 | struct vrf *vrf = vrf_lookup_by_id(ospf->vrf_id); |
d62a17ae | 117 | struct in_addr router_id, router_id_old; |
118 | struct ospf_interface *oi; | |
119 | struct interface *ifp; | |
f91ce319 MR |
120 | struct listnode *node, *nnode; |
121 | struct ospf_area *area; | |
122 | bool rid_change = false; | |
2c19a6ec | 123 | |
d62a17ae | 124 | if (!ospf->oi_running) { |
125 | if (IS_DEBUG_OSPF_EVENT) | |
126 | zlog_debug( | |
127 | "Router ospf not configured -- Router-ID update postponed"); | |
128 | return; | |
25a346eb | 129 | } |
718e3744 | 130 | |
d62a17ae | 131 | if (IS_DEBUG_OSPF_EVENT) |
96b663a3 MS |
132 | zlog_debug("Router-ID[OLD:%pI4]: Update", |
133 | &ospf->router_id); | |
d62a17ae | 134 | |
135 | router_id_old = ospf->router_id; | |
136 | ||
137 | /* Select the router ID based on these priorities: | |
138 | 1. Statically assigned router ID is always the first choice. | |
139 | 2. If there is no statically assigned router ID, then try to stick | |
140 | with the most recent value, since changing router ID's is very | |
141 | disruptive. | |
142 | 3. Last choice: just go with whatever the zebra daemon recommends. | |
143 | */ | |
3a6290bd | 144 | if (ospf->router_id_static.s_addr != INADDR_ANY) |
d62a17ae | 145 | router_id = ospf->router_id_static; |
3a6290bd | 146 | else if (ospf->router_id.s_addr != INADDR_ANY) |
d62a17ae | 147 | router_id = ospf->router_id; |
148 | else | |
6021c6c0 | 149 | router_id = ospf->router_id_zebra; |
d62a17ae | 150 | |
b5a8894d | 151 | if (IS_DEBUG_OSPF_EVENT) |
96b663a3 MS |
152 | zlog_debug("Router-ID[OLD:%pI4]: Update to %pI4", |
153 | &ospf->router_id, &router_id); | |
d62a17ae | 154 | |
f91ce319 MR |
155 | rid_change = !(IPV4_ADDR_SAME(&router_id_old, &router_id)); |
156 | if (rid_change || (reset)) { | |
d62a17ae | 157 | for (ALL_LIST_ELEMENTS_RO(ospf->oiflist, node, oi)) { |
158 | /* Some nbrs are identified by router_id, these needs | |
159 | * to be rebuilt. Possible optimization would be to do | |
160 | * oi->nbr_self->router_id = router_id for | |
161 | * !(virtual | ptop) links | |
162 | */ | |
163 | ospf_nbr_self_reset(oi, router_id); | |
7e0274f8 DS |
164 | |
165 | /* | |
166 | * If the old router id was not set, but now it | |
167 | * is and the interface is operative and the | |
168 | * state is ISM_Down we should kick the state | |
169 | * machine as that we processed the interfaces | |
170 | * based upon the network statement( or intf config ) | |
171 | * but could not start it at that time. | |
172 | */ | |
173 | if (if_is_operative(oi->ifp) && oi->state == ISM_Down | |
174 | && router_id_old.s_addr == INADDR_ANY) | |
175 | ospf_if_up(oi); | |
d62a17ae | 176 | } |
177 | ||
f91ce319 MR |
178 | /* Flush (inline) all the self originated LSAs */ |
179 | ospf_flush_self_originated_lsas_now(ospf); | |
d62a17ae | 180 | |
181 | ospf->router_id = router_id; | |
182 | if (IS_DEBUG_OSPF_EVENT) | |
96b663a3 MS |
183 | zlog_debug("Router-ID[NEW:%pI4]: Update", |
184 | &ospf->router_id); | |
d62a17ae | 185 | |
186 | /* Flush (inline) all external LSAs which now match the new | |
187 | router-id, | |
0437e105 | 188 | need to adjust the OSPF_LSA_SELF flag, so the flush doesn't |
d62a17ae | 189 | hit |
190 | asserts in ospf_refresher_unregister_lsa(). This step is | |
191 | needed | |
192 | because the current quagga code does look-up for | |
193 | self-originated LSAs | |
194 | based on the self router-id alone but expects OSPF_LSA_SELF | |
195 | to be | |
196 | properly set */ | |
197 | if (ospf->lsdb) { | |
198 | struct route_node *rn; | |
199 | struct ospf_lsa *lsa; | |
200 | ||
044506e7 | 201 | LSDB_LOOP (EXTERNAL_LSDB(ospf), rn, lsa) { |
d62a17ae | 202 | /* AdvRouter and Router ID is the same. */ |
203 | if (IPV4_ADDR_SAME(&lsa->data->adv_router, | |
f91ce319 | 204 | &ospf->router_id) && rid_change) { |
d62a17ae | 205 | SET_FLAG(lsa->flags, |
206 | OSPF_LSA_SELF_CHECKED); | |
207 | SET_FLAG(lsa->flags, OSPF_LSA_SELF); | |
208 | ospf_lsa_flush_schedule(ospf, lsa); | |
209 | } | |
f91ce319 MR |
210 | /* The above flush will send immediately |
211 | * So discard the LSA to originate new | |
212 | */ | |
213 | ospf_discard_from_db(ospf, ospf->lsdb, lsa); | |
d62a17ae | 214 | } |
f91ce319 MR |
215 | |
216 | LSDB_LOOP (OPAQUE_AS_LSDB(ospf), rn, lsa) | |
217 | ospf_discard_from_db(ospf, ospf->lsdb, lsa); | |
218 | ||
219 | ospf_lsdb_delete_all(ospf->lsdb); | |
d62a17ae | 220 | } |
221 | ||
f91ce319 MR |
222 | /* Delete the LSDB */ |
223 | for (ALL_LIST_ELEMENTS(ospf->areas, node, nnode, area)) | |
224 | ospf_area_lsdb_discard_delete(area); | |
225 | ||
d62a17ae | 226 | /* update router-lsa's for each area */ |
227 | ospf_router_lsa_update(ospf); | |
228 | ||
229 | /* update ospf_interface's */ | |
f91ce319 MR |
230 | FOR_ALL_INTERFACES (vrf, ifp) { |
231 | if (reset) | |
232 | ospf_if_reset(ifp); | |
233 | else | |
234 | ospf_if_update(ospf, ifp); | |
235 | } | |
fa3c7c7e DL |
236 | |
237 | ospf_external_lsa_rid_change(ospf); | |
718e3744 | 238 | } |
f91ce319 MR |
239 | |
240 | ospf->inst_shutdown = 0; | |
241 | } | |
242 | ||
243 | void ospf_router_id_update(struct ospf *ospf) | |
244 | { | |
245 | ospf_process_refresh_data(ospf, false); | |
246 | } | |
247 | ||
248 | void ospf_process_reset(struct ospf *ospf) | |
249 | { | |
250 | ospf_process_refresh_data(ospf, true); | |
251 | } | |
252 | ||
253 | void ospf_neighbor_reset(struct ospf *ospf, struct in_addr nbr_id, | |
254 | const char *nbr_str) | |
255 | { | |
256 | struct route_node *rn; | |
257 | struct ospf_neighbor *nbr; | |
258 | struct ospf_interface *oi; | |
259 | struct listnode *node; | |
260 | ||
261 | /* Clear only a particular nbr with nbr router id as nbr_id */ | |
262 | if (nbr_str != NULL) { | |
263 | for (ALL_LIST_ELEMENTS_RO(ospf->oiflist, node, oi)) { | |
264 | nbr = ospf_nbr_lookup_by_routerid(oi->nbrs, &nbr_id); | |
265 | if (nbr) | |
266 | OSPF_NSM_EVENT_EXECUTE(nbr, NSM_KillNbr); | |
267 | } | |
268 | return; | |
269 | } | |
270 | ||
271 | /* send Neighbor event KillNbr to all associated neighbors. */ | |
272 | for (ALL_LIST_ELEMENTS_RO(ospf->oiflist, node, oi)) { | |
273 | for (rn = route_top(oi->nbrs); rn; rn = route_next(rn)) { | |
274 | nbr = rn->info; | |
275 | if (nbr && (nbr != oi->nbr_self)) | |
276 | OSPF_NSM_EVENT_EXECUTE(nbr, NSM_KillNbr); | |
277 | } | |
278 | } | |
718e3744 | 279 | } |
6b0655a2 | 280 | |
718e3744 | 281 | /* For OSPF area sort by area id. */ |
d62a17ae | 282 | static int ospf_area_id_cmp(struct ospf_area *a1, struct ospf_area *a2) |
718e3744 | 283 | { |
d62a17ae | 284 | if (ntohl(a1->area_id.s_addr) > ntohl(a2->area_id.s_addr)) |
285 | return 1; | |
286 | if (ntohl(a1->area_id.s_addr) < ntohl(a2->area_id.s_addr)) | |
287 | return -1; | |
288 | return 0; | |
718e3744 | 289 | } |
290 | ||
7fd0729f | 291 | struct ospf *ospf_new_alloc(unsigned short instance, const char *name) |
718e3744 | 292 | { |
d62a17ae | 293 | int i; |
b5a8894d | 294 | struct vrf *vrf = NULL; |
718e3744 | 295 | |
d62a17ae | 296 | struct ospf *new = XCALLOC(MTYPE_OSPF_TOP, sizeof(struct ospf)); |
718e3744 | 297 | |
d62a17ae | 298 | new->instance = instance; |
299 | new->router_id.s_addr = htonl(0); | |
300 | new->router_id_static.s_addr = htonl(0); | |
14406e8e DS |
301 | if (name) { |
302 | vrf = vrf_lookup_by_name(name); | |
303 | if (vrf) | |
304 | new->vrf_id = vrf->vrf_id; | |
305 | else | |
306 | new->vrf_id = VRF_UNKNOWN; | |
b5a8894d CS |
307 | /* Freed in ospf_finish_final */ |
308 | new->name = XSTRDUP(MTYPE_OSPF_TOP, name); | |
b5a8894d | 309 | if (IS_DEBUG_OSPF_EVENT) |
996c9314 LB |
310 | zlog_debug( |
311 | "%s: Create new ospf instance with vrf_name %s vrf_id %u", | |
15569c58 | 312 | __func__, name, new->vrf_id); |
b5a8894d CS |
313 | } else { |
314 | new->vrf_id = VRF_DEFAULT; | |
315 | vrf = vrf_lookup_by_id(VRF_DEFAULT); | |
b5a8894d | 316 | } |
a2d7fdfe | 317 | |
318 | if (vrf) | |
319 | ospf_vrf_link(new, vrf); | |
320 | ||
b5a8894d CS |
321 | ospf_zebra_vrf_register(new); |
322 | ||
d62a17ae | 323 | new->abr_type = OSPF_ABR_DEFAULT; |
324 | new->oiflist = list_new(); | |
325 | new->vlinks = list_new(); | |
326 | new->areas = list_new(); | |
327 | new->areas->cmp = (int (*)(void *, void *))ospf_area_id_cmp; | |
328 | new->networks = route_table_init(); | |
329 | new->nbr_nbma = route_table_init(); | |
718e3744 | 330 | |
d62a17ae | 331 | new->lsdb = ospf_lsdb_new(); |
718e3744 | 332 | |
d62a17ae | 333 | new->default_originate = DEFAULT_ORIGINATE_NONE; |
718e3744 | 334 | |
d62a17ae | 335 | new->passive_interface_default = OSPF_IF_ACTIVE; |
4ba4fc85 | 336 | |
d62a17ae | 337 | new->new_external_route = route_table_init(); |
338 | new->old_external_route = route_table_init(); | |
339 | new->external_lsas = route_table_init(); | |
340 | ||
341 | new->stub_router_startup_time = OSPF_STUB_ROUTER_UNCONFIGURED; | |
342 | new->stub_router_shutdown_time = OSPF_STUB_ROUTER_UNCONFIGURED; | |
343 | new->stub_router_admin_set = OSPF_STUB_ROUTER_ADMINISTRATIVE_UNSET; | |
344 | ||
345 | /* Distribute parameter init. */ | |
346 | for (i = 0; i <= ZEBRA_ROUTE_MAX; i++) { | |
347 | new->dtag[i] = 0; | |
348 | } | |
349 | new->default_metric = -1; | |
350 | new->ref_bandwidth = OSPF_DEFAULT_REF_BANDWIDTH; | |
351 | ||
352 | /* LSA timers */ | |
353 | new->min_ls_interval = OSPF_MIN_LS_INTERVAL; | |
354 | new->min_ls_arrival = OSPF_MIN_LS_ARRIVAL; | |
355 | ||
356 | /* SPF timer value init. */ | |
357 | new->spf_delay = OSPF_SPF_DELAY_DEFAULT; | |
358 | new->spf_holdtime = OSPF_SPF_HOLDTIME_DEFAULT; | |
359 | new->spf_max_holdtime = OSPF_SPF_MAX_HOLDTIME_DEFAULT; | |
360 | new->spf_hold_multiplier = 1; | |
361 | ||
362 | /* MaxAge init. */ | |
363 | new->maxage_delay = OSPF_LSA_MAXAGE_REMOVE_DELAY_DEFAULT; | |
364 | new->maxage_lsa = route_table_init(); | |
365 | new->t_maxage_walker = NULL; | |
d62a17ae | 366 | |
367 | /* Distance table init. */ | |
368 | new->distance_table = route_table_init(); | |
369 | ||
370 | new->lsa_refresh_queue.index = 0; | |
371 | new->lsa_refresh_interval = OSPF_LSA_REFRESH_INTERVAL_DEFAULT; | |
372 | new->t_lsa_refresher = NULL; | |
d62a17ae | 373 | new->lsa_refresher_started = monotime(NULL); |
374 | ||
266469eb DS |
375 | new->ibuf = stream_new(OSPF_MAX_PACKET_SIZE + 1); |
376 | ||
d62a17ae | 377 | new->t_read = NULL; |
d62a17ae | 378 | new->oi_write_q = list_new(); |
379 | new->write_oi_count = OSPF_WRITE_INTERFACE_COUNT_DEFAULT; | |
380 | ||
a92706bb JU |
381 | new->proactive_arp = OSPF_PROACTIVE_ARP_DEFAULT; |
382 | ||
06bc3110 | 383 | ospf_gr_helper_init(new); |
384 | ||
ad7222b7 | 385 | ospf_asbr_external_aggregator_init(new); |
386 | ||
d62a17ae | 387 | QOBJ_REG(new, ospf); |
ae19c240 | 388 | |
3c0eb8fa | 389 | new->fd = -1; |
7fd0729f G |
390 | |
391 | return new; | |
392 | } | |
393 | ||
394 | /* Allocate new ospf structure. */ | |
395 | static struct ospf *ospf_new(unsigned short instance, const char *name) | |
396 | { | |
397 | struct ospf *new; | |
398 | ||
399 | new = ospf_new_alloc(instance, name); | |
400 | ||
3c0eb8fa PG |
401 | if ((ospf_sock_init(new)) < 0) { |
402 | if (new->vrf_id != VRF_UNKNOWN) | |
ade6974d | 403 | flog_err( |
450971aa | 404 | EC_LIB_SOCKET, |
ade6974d QY |
405 | "%s: ospf_sock_init is unable to open a socket", |
406 | __func__); | |
3c0eb8fa PG |
407 | return new; |
408 | } | |
7fd0729f G |
409 | |
410 | thread_add_timer(master, ospf_lsa_maxage_walker, new, | |
411 | OSPF_LSA_MAXAGE_CHECK_INTERVAL, &new->t_maxage_walker); | |
412 | thread_add_timer(master, ospf_lsa_refresh_walker, new, | |
413 | new->lsa_refresh_interval, &new->t_lsa_refresher); | |
414 | ||
3c0eb8fa PG |
415 | thread_add_read(master, ospf_read, new, new->fd, &new->t_read); |
416 | ||
d62a17ae | 417 | return new; |
718e3744 | 418 | } |
419 | ||
d7c0a89a | 420 | struct ospf *ospf_lookup_instance(unsigned short instance) |
7c8ff89e | 421 | { |
d62a17ae | 422 | struct ospf *ospf; |
423 | struct listnode *node, *nnode; | |
7c8ff89e | 424 | |
d62a17ae | 425 | if (listcount(om->ospf) == 0) |
426 | return NULL; | |
7c8ff89e | 427 | |
d62a17ae | 428 | for (ALL_LIST_ELEMENTS(om->ospf, node, nnode, ospf)) |
429 | if ((ospf->instance == 0 && instance == 0) | |
430 | || (ospf->instance && instance | |
431 | && ospf->instance == instance)) | |
432 | return ospf; | |
7c8ff89e | 433 | |
d62a17ae | 434 | return NULL; |
7c8ff89e DS |
435 | } |
436 | ||
d62a17ae | 437 | static int ospf_is_ready(struct ospf *ospf) |
52c62ab8 | 438 | { |
d62a17ae | 439 | /* OSPF must be on and Router-ID must be configured. */ |
975a328e | 440 | if (!ospf || ospf->router_id.s_addr == INADDR_ANY) |
d62a17ae | 441 | return 0; |
442 | ||
443 | return 1; | |
52c62ab8 JAG |
444 | } |
445 | ||
d62a17ae | 446 | static void ospf_add(struct ospf *ospf) |
020709f9 | 447 | { |
d62a17ae | 448 | listnode_add(om->ospf, ospf); |
020709f9 | 449 | } |
718e3744 | 450 | |
d62a17ae | 451 | static void ospf_delete(struct ospf *ospf) |
020709f9 | 452 | { |
d62a17ae | 453 | listnode_delete(om->ospf, ospf); |
020709f9 | 454 | } |
68980084 | 455 | |
d7c0a89a | 456 | struct ospf *ospf_lookup_by_inst_name(unsigned short instance, const char *name) |
b5a8894d CS |
457 | { |
458 | struct ospf *ospf = NULL; | |
459 | struct listnode *node, *nnode; | |
460 | ||
6895b354 PG |
461 | if (name == NULL || strmatch(name, VRF_DEFAULT_NAME)) |
462 | return ospf_lookup_by_vrf_id(VRF_DEFAULT); | |
463 | ||
b5a8894d | 464 | for (ALL_LIST_ELEMENTS(om->ospf, node, nnode, ospf)) { |
996c9314 LB |
465 | if ((ospf->instance == instance) |
466 | && ((ospf->name == NULL && name == NULL) | |
467 | || (ospf->name && name | |
468 | && strcmp(ospf->name, name) == 0))) | |
b5a8894d CS |
469 | return ospf; |
470 | } | |
471 | return NULL; | |
472 | } | |
473 | ||
c3391da1 | 474 | static void ospf_init(struct ospf *ospf) |
020709f9 | 475 | { |
0549eeda IR |
476 | struct vrf *vrf; |
477 | struct interface *ifp; | |
020709f9 | 478 | |
c3391da1 IR |
479 | ospf_opaque_type11_lsa_init(ospf); |
480 | ||
481 | if (ospf->vrf_id != VRF_UNKNOWN) | |
482 | ospf->oi_running = 1; | |
483 | ||
484 | /* Activate 'ip ospf area x' configured interfaces for given | |
485 | * vrf. Activate area on vrf x aware interfaces. | |
486 | * vrf_enable callback calls router_id_update which | |
487 | * internally will call ospf_if_update to trigger | |
488 | * network_run_state | |
489 | */ | |
490 | vrf = vrf_lookup_by_id(ospf->vrf_id); | |
491 | ||
492 | FOR_ALL_INTERFACES (vrf, ifp) { | |
493 | struct ospf_if_params *params; | |
494 | struct route_node *rn; | |
495 | uint32_t count = 0; | |
496 | ||
497 | params = IF_DEF_PARAMS(ifp); | |
498 | if (OSPF_IF_PARAM_CONFIGURED(params, if_area)) | |
499 | count++; | |
500 | ||
501 | for (rn = route_top(IF_OIFS_PARAMS(ifp)); rn; rn = route_next(rn)) | |
502 | if ((params = rn->info) && OSPF_IF_PARAM_CONFIGURED(params, if_area)) | |
503 | count++; | |
504 | ||
505 | if (count > 0) { | |
506 | ospf_interface_area_set(ospf, ifp); | |
507 | ospf->if_ospf_cli_count += count; | |
508 | } | |
509 | } | |
510 | ||
511 | ospf_router_id_update(ospf); | |
512 | } | |
513 | ||
514 | struct ospf *ospf_get(unsigned short instance, const char *name, bool *created) | |
515 | { | |
516 | struct ospf *ospf; | |
517 | ||
b5a8894d CS |
518 | /* vrf name provided call inst and name based api |
519 | * in case of no name pass default ospf instance */ | |
520 | if (name) | |
521 | ospf = ospf_lookup_by_inst_name(instance, name); | |
522 | else | |
523 | ospf = ospf_lookup_by_vrf_id(VRF_DEFAULT); | |
524 | ||
c572fbfe | 525 | *created = (ospf == NULL); |
d62a17ae | 526 | if (ospf == NULL) { |
b5a8894d | 527 | ospf = ospf_new(instance, name); |
d62a17ae | 528 | ospf_add(ospf); |
7c8ff89e | 529 | |
c3391da1 | 530 | ospf_init(ospf); |
d62a17ae | 531 | } |
7c8ff89e | 532 | |
d62a17ae | 533 | return ospf; |
7c8ff89e DS |
534 | } |
535 | ||
c572fbfe | 536 | struct ospf *ospf_get_instance(unsigned short instance, bool *created) |
7c8ff89e | 537 | { |
d62a17ae | 538 | struct ospf *ospf; |
7c8ff89e | 539 | |
d62a17ae | 540 | ospf = ospf_lookup_instance(instance); |
c572fbfe | 541 | *created = (ospf == NULL); |
d62a17ae | 542 | if (ospf == NULL) { |
b5a8894d | 543 | ospf = ospf_new(instance, NULL /* VRF_DEFAULT*/); |
d62a17ae | 544 | ospf_add(ospf); |
020709f9 | 545 | |
c3391da1 | 546 | ospf_init(ospf); |
d62a17ae | 547 | } |
68980084 | 548 | |
d62a17ae | 549 | return ospf; |
718e3744 | 550 | } |
6b0655a2 | 551 | |
b5a8894d CS |
552 | struct ospf *ospf_lookup_by_vrf_id(vrf_id_t vrf_id) |
553 | { | |
554 | struct vrf *vrf = NULL; | |
555 | ||
556 | vrf = vrf_lookup_by_id(vrf_id); | |
557 | if (!vrf) | |
558 | return NULL; | |
559 | return (vrf->info) ? (struct ospf *)vrf->info : NULL; | |
b5a8894d CS |
560 | } |
561 | ||
43b8d1d8 CS |
562 | /* It should only be used when processing incoming info update from zebra. |
563 | * Other situations, it is not sufficient to lookup the ospf instance by | |
564 | * vrf_name only without using the instance number. | |
565 | */ | |
566 | static struct ospf *ospf_lookup_by_name(const char *vrf_name) | |
b5a8894d CS |
567 | { |
568 | struct ospf *ospf = NULL; | |
569 | struct listnode *node, *nnode; | |
570 | ||
571 | for (ALL_LIST_ELEMENTS(om->ospf, node, nnode, ospf)) | |
43b8d1d8 | 572 | if ((ospf->name == NULL && vrf_name == NULL) |
996c9314 LB |
573 | || (ospf->name && vrf_name |
574 | && strcmp(ospf->name, vrf_name) == 0)) | |
b5a8894d CS |
575 | return ospf; |
576 | return NULL; | |
577 | } | |
578 | ||
c9c93d50 | 579 | /* Handle the second half of deferred shutdown. This is called either |
580 | * from the deferred-shutdown timer thread, or directly through | |
581 | * ospf_deferred_shutdown_check. | |
88d6cf37 | 582 | * |
583 | * Function is to cleanup G-R state, if required then call ospf_finish_final | |
584 | * to complete shutdown of this ospf instance. Possibly exit if the | |
585 | * whole process is being shutdown and this was the last OSPF instance. | |
586 | */ | |
d62a17ae | 587 | static void ospf_deferred_shutdown_finish(struct ospf *ospf) |
588 | { | |
589 | ospf->stub_router_shutdown_time = OSPF_STUB_ROUTER_UNCONFIGURED; | |
590 | OSPF_TIMER_OFF(ospf->t_deferred_shutdown); | |
591 | ||
592 | ospf_finish_final(ospf); | |
593 | ||
594 | /* *ospf is now invalid */ | |
88d6cf37 | 595 | |
d62a17ae | 596 | /* ospfd being shut-down? If so, was this the last ospf instance? */ |
597 | if (CHECK_FLAG(om->options, OSPF_MASTER_SHUTDOWN) | |
598 | && (listcount(om->ospf) == 0)) { | |
599 | exit(0); | |
600 | } | |
601 | ||
602 | return; | |
88d6cf37 | 603 | } |
604 | ||
605 | /* Timer thread for G-R */ | |
d62a17ae | 606 | static int ospf_deferred_shutdown_timer(struct thread *t) |
88d6cf37 | 607 | { |
d62a17ae | 608 | struct ospf *ospf = THREAD_ARG(t); |
609 | ||
610 | ospf_deferred_shutdown_finish(ospf); | |
611 | ||
612 | return 0; | |
88d6cf37 | 613 | } |
614 | ||
c9c93d50 | 615 | /* Check whether deferred-shutdown must be scheduled, otherwise call |
88d6cf37 | 616 | * down directly into second-half of instance shutdown. |
617 | */ | |
d62a17ae | 618 | static void ospf_deferred_shutdown_check(struct ospf *ospf) |
619 | { | |
620 | unsigned long timeout; | |
621 | struct listnode *ln; | |
622 | struct ospf_area *area; | |
623 | ||
624 | /* deferred shutdown already running? */ | |
625 | if (ospf->t_deferred_shutdown) | |
626 | return; | |
627 | ||
628 | /* Should we try push out max-metric LSAs? */ | |
629 | if (ospf->stub_router_shutdown_time != OSPF_STUB_ROUTER_UNCONFIGURED) { | |
630 | for (ALL_LIST_ELEMENTS_RO(ospf->areas, ln, area)) { | |
631 | SET_FLAG(area->stub_router_state, | |
632 | OSPF_AREA_ADMIN_STUB_ROUTED); | |
633 | ||
634 | if (!CHECK_FLAG(area->stub_router_state, | |
635 | OSPF_AREA_IS_STUB_ROUTED)) | |
636 | ospf_router_lsa_update_area(area); | |
637 | } | |
638 | timeout = ospf->stub_router_shutdown_time; | |
639 | } else { | |
640 | /* No timer needed */ | |
641 | ospf_deferred_shutdown_finish(ospf); | |
642 | return; | |
643 | } | |
644 | ||
645 | OSPF_TIMER_ON(ospf->t_deferred_shutdown, ospf_deferred_shutdown_timer, | |
646 | timeout); | |
647 | return; | |
88d6cf37 | 648 | } |
6b0655a2 | 649 | |
88d6cf37 | 650 | /* Shut down the entire process */ |
d62a17ae | 651 | void ospf_terminate(void) |
652 | { | |
653 | struct ospf *ospf; | |
654 | struct listnode *node, *nnode; | |
655 | ||
656 | /* shutdown already in progress */ | |
657 | if (CHECK_FLAG(om->options, OSPF_MASTER_SHUTDOWN)) | |
658 | return; | |
659 | ||
660 | SET_FLAG(om->options, OSPF_MASTER_SHUTDOWN); | |
661 | ||
41b21bfa | 662 | /* Skip some steps if OSPF not actually running */ |
d62a17ae | 663 | if (listcount(om->ospf) == 0) |
41b21bfa | 664 | goto done; |
d62a17ae | 665 | |
666 | bfd_gbl_exit(); | |
667 | for (ALL_LIST_ELEMENTS(om->ospf, node, nnode, ospf)) | |
668 | ospf_finish(ospf); | |
669 | ||
ded42248 | 670 | /* Cleanup route maps */ |
ded42248 CS |
671 | route_map_finish(); |
672 | ||
673 | /* reverse prefix_list_init */ | |
674 | prefix_list_add_hook(NULL); | |
675 | prefix_list_delete_hook(NULL); | |
676 | prefix_list_reset(); | |
677 | ||
678 | /* Cleanup vrf info */ | |
679 | ospf_vrf_terminate(); | |
680 | ||
d62a17ae | 681 | /* Deliberately go back up, hopefully to thread scheduler, as |
682 | * One or more ospf_finish()'s may have deferred shutdown to a timer | |
683 | * thread | |
684 | */ | |
685 | zclient_stop(zclient); | |
686 | zclient_free(zclient); | |
8879bd22 | 687 | |
41b21bfa | 688 | done: |
8879bd22 | 689 | frr_fini(); |
d62a17ae | 690 | } |
691 | ||
692 | void ospf_finish(struct ospf *ospf) | |
693 | { | |
694 | /* let deferred shutdown decide */ | |
695 | ospf_deferred_shutdown_check(ospf); | |
696 | ||
697 | /* if ospf_deferred_shutdown returns, then ospf_finish_final is | |
698 | * deferred to expiry of G-S timer thread. Return back up, hopefully | |
699 | * to thread scheduler. | |
700 | */ | |
701 | return; | |
88d6cf37 | 702 | } |
703 | ||
704 | /* Final cleanup of ospf instance */ | |
d62a17ae | 705 | static void ospf_finish_final(struct ospf *ospf) |
718e3744 | 706 | { |
41616883 | 707 | struct vrf *vrf; |
d62a17ae | 708 | struct route_node *rn; |
709 | struct ospf_nbr_nbma *nbr_nbma; | |
710 | struct ospf_lsa *lsa; | |
d62a17ae | 711 | struct ospf_interface *oi; |
712 | struct ospf_area *area; | |
713 | struct ospf_vl_data *vl_data; | |
714 | struct listnode *node, *nnode; | |
715 | int i; | |
7c8ff89e | 716 | |
d62a17ae | 717 | QOBJ_UNREG(ospf); |
7c8ff89e | 718 | |
d62a17ae | 719 | ospf_opaque_type11_lsa_term(ospf); |
953cde65 | 720 | |
bcf4475e OD |
721 | ospf_opaque_finish(); |
722 | ||
046460a1 | 723 | ospf_flush_self_originated_lsas_now(ospf); |
953cde65 | 724 | |
d62a17ae | 725 | /* Unregister redistribution */ |
726 | for (i = 0; i < ZEBRA_ROUTE_MAX; i++) { | |
727 | struct list *red_list; | |
728 | struct ospf_redist *red; | |
718e3744 | 729 | |
d62a17ae | 730 | red_list = ospf->redist[i]; |
731 | if (!red_list) | |
732 | continue; | |
718e3744 | 733 | |
1d753551 | 734 | for (ALL_LIST_ELEMENTS(red_list, node, nnode, red)) { |
d62a17ae | 735 | ospf_redistribute_unset(ospf, i, red->instance); |
1d753551 DS |
736 | ospf_redist_del(ospf, i, red->instance); |
737 | } | |
d62a17ae | 738 | } |
d5eac1e0 | 739 | ospf_redistribute_default_set(ospf, DEFAULT_ORIGINATE_NONE, 0, 0); |
718e3744 | 740 | |
d62a17ae | 741 | for (ALL_LIST_ELEMENTS(ospf->areas, node, nnode, area)) |
742 | ospf_remove_vls_through_area(ospf, area); | |
718e3744 | 743 | |
d62a17ae | 744 | for (ALL_LIST_ELEMENTS(ospf->vlinks, node, nnode, vl_data)) |
745 | ospf_vl_delete(ospf, vl_data); | |
718e3744 | 746 | |
6a154c88 | 747 | list_delete(&ospf->vlinks); |
718e3744 | 748 | |
132a782e | 749 | /* shutdown LDP-Sync */ |
750 | if (ospf->vrf_id == VRF_DEFAULT) | |
751 | ospf_ldp_sync_gbl_exit(ospf, true); | |
752 | ||
d62a17ae | 753 | /* Reset interface. */ |
754 | for (ALL_LIST_ELEMENTS(ospf->oiflist, node, nnode, oi)) | |
755 | ospf_if_free(oi); | |
6a154c88 | 756 | list_delete(&ospf->oiflist); |
c32eba04 | 757 | ospf->oi_running = 0; |
718e3744 | 758 | |
b5a8894d CS |
759 | /* De-Register VRF */ |
760 | ospf_zebra_vrf_deregister(ospf); | |
761 | ||
d62a17ae | 762 | /* Clear static neighbors */ |
763 | for (rn = route_top(ospf->nbr_nbma); rn; rn = route_next(rn)) | |
764 | if ((nbr_nbma = rn->info)) { | |
765 | OSPF_POLL_TIMER_OFF(nbr_nbma->t_poll); | |
718e3744 | 766 | |
d62a17ae | 767 | if (nbr_nbma->nbr) { |
768 | nbr_nbma->nbr->nbr_nbma = NULL; | |
769 | nbr_nbma->nbr = NULL; | |
770 | } | |
771 | ||
772 | if (nbr_nbma->oi) { | |
773 | listnode_delete(nbr_nbma->oi->nbr_nbma, | |
774 | nbr_nbma); | |
775 | nbr_nbma->oi = NULL; | |
776 | } | |
777 | ||
778 | XFREE(MTYPE_OSPF_NEIGHBOR_STATIC, nbr_nbma); | |
779 | } | |
780 | ||
781 | route_table_finish(ospf->nbr_nbma); | |
782 | ||
783 | /* Clear networks and Areas. */ | |
784 | for (rn = route_top(ospf->networks); rn; rn = route_next(rn)) { | |
785 | struct ospf_network *network; | |
786 | ||
787 | if ((network = rn->info) != NULL) { | |
788 | ospf_network_free(ospf, network); | |
789 | rn->info = NULL; | |
790 | route_unlock_node(rn); | |
791 | } | |
91e6a0e5 | 792 | } |
7f586094 | 793 | route_table_finish(ospf->networks); |
718e3744 | 794 | |
d62a17ae | 795 | for (ALL_LIST_ELEMENTS(ospf->areas, node, nnode, area)) { |
796 | listnode_delete(ospf->areas, area); | |
797 | ospf_area_free(area); | |
798 | } | |
718e3744 | 799 | |
d62a17ae | 800 | /* Cancel all timers. */ |
c32eba04 CS |
801 | OSPF_TIMER_OFF(ospf->t_read); |
802 | OSPF_TIMER_OFF(ospf->t_write); | |
d62a17ae | 803 | OSPF_TIMER_OFF(ospf->t_spf_calc); |
804 | OSPF_TIMER_OFF(ospf->t_ase_calc); | |
805 | OSPF_TIMER_OFF(ospf->t_maxage); | |
806 | OSPF_TIMER_OFF(ospf->t_maxage_walker); | |
807 | OSPF_TIMER_OFF(ospf->t_abr_task); | |
808 | OSPF_TIMER_OFF(ospf->t_asbr_check); | |
809 | OSPF_TIMER_OFF(ospf->t_distribute_update); | |
810 | OSPF_TIMER_OFF(ospf->t_lsa_refresher); | |
d62a17ae | 811 | OSPF_TIMER_OFF(ospf->t_opaque_lsa_self); |
45a43856 | 812 | OSPF_TIMER_OFF(ospf->t_sr_update); |
1febb13d | 813 | OSPF_TIMER_OFF(ospf->t_default_routemap_timer); |
ad7222b7 | 814 | OSPF_TIMER_OFF(ospf->t_external_aggr); |
d62a17ae | 815 | |
996c9314 | 816 | LSDB_LOOP (OPAQUE_AS_LSDB(ospf), rn, lsa) |
044506e7 | 817 | ospf_discard_from_db(ospf, ospf->lsdb, lsa); |
996c9314 | 818 | LSDB_LOOP (EXTERNAL_LSDB(ospf), rn, lsa) |
044506e7 | 819 | ospf_discard_from_db(ospf, ospf->lsdb, lsa); |
d62a17ae | 820 | |
821 | ospf_lsdb_delete_all(ospf->lsdb); | |
822 | ospf_lsdb_free(ospf->lsdb); | |
823 | ||
824 | for (rn = route_top(ospf->maxage_lsa); rn; rn = route_next(rn)) { | |
d62a17ae | 825 | if ((lsa = rn->info) != NULL) { |
826 | ospf_lsa_unlock(&lsa); | |
827 | rn->info = NULL; | |
828 | } | |
829 | route_unlock_node(rn); | |
830 | } | |
831 | route_table_finish(ospf->maxage_lsa); | |
832 | ||
833 | if (ospf->old_table) | |
834 | ospf_route_table_free(ospf->old_table); | |
835 | if (ospf->new_table) { | |
b5a8894d | 836 | ospf_route_delete(ospf, ospf->new_table); |
d62a17ae | 837 | ospf_route_table_free(ospf->new_table); |
838 | } | |
839 | if (ospf->old_rtrs) | |
840 | ospf_rtrs_free(ospf->old_rtrs); | |
841 | if (ospf->new_rtrs) | |
842 | ospf_rtrs_free(ospf->new_rtrs); | |
843 | if (ospf->new_external_route) { | |
b5a8894d | 844 | ospf_route_delete(ospf, ospf->new_external_route); |
d62a17ae | 845 | ospf_route_table_free(ospf->new_external_route); |
846 | } | |
847 | if (ospf->old_external_route) { | |
b5a8894d | 848 | ospf_route_delete(ospf, ospf->old_external_route); |
d62a17ae | 849 | ospf_route_table_free(ospf->old_external_route); |
850 | } | |
851 | if (ospf->external_lsas) { | |
852 | ospf_ase_external_lsas_finish(ospf->external_lsas); | |
853 | } | |
718e3744 | 854 | |
d62a17ae | 855 | for (i = ZEBRA_ROUTE_SYSTEM; i <= ZEBRA_ROUTE_MAX; i++) { |
856 | struct list *ext_list; | |
d62a17ae | 857 | struct ospf_external *ext; |
858 | ||
de1ac5fd | 859 | ext_list = ospf->external[i]; |
d62a17ae | 860 | if (!ext_list) |
861 | continue; | |
862 | ||
76fdc7f4 | 863 | for (ALL_LIST_ELEMENTS(ext_list, node, nnode, ext)) { |
d62a17ae | 864 | if (ext->external_info) |
865 | for (rn = route_top(ext->external_info); rn; | |
866 | rn = route_next(rn)) { | |
867 | if (rn->info == NULL) | |
868 | continue; | |
869 | ||
870 | XFREE(MTYPE_OSPF_EXTERNAL_INFO, | |
871 | rn->info); | |
872 | rn->info = NULL; | |
873 | route_unlock_node(rn); | |
874 | } | |
1d753551 DS |
875 | |
876 | ospf_external_del(ospf, i, ext->instance); | |
d62a17ae | 877 | } |
878 | } | |
718e3744 | 879 | |
d62a17ae | 880 | ospf_distance_reset(ospf); |
881 | route_table_finish(ospf->distance_table); | |
7c8ff89e | 882 | |
ad7222b7 | 883 | /* Release extrenal Aggregator table */ |
884 | for (rn = route_top(ospf->rt_aggr_tbl); rn; rn = route_next(rn)) { | |
885 | struct ospf_external_aggr_rt *aggr; | |
886 | ||
887 | aggr = rn->info; | |
888 | ||
889 | if (aggr) { | |
890 | ospf_external_aggregator_free(aggr); | |
891 | rn->info = NULL; | |
892 | route_unlock_node(rn); | |
893 | } | |
894 | } | |
895 | ||
896 | route_table_finish(ospf->rt_aggr_tbl); | |
897 | ||
898 | ||
c32eba04 CS |
899 | list_delete(&ospf->areas); |
900 | list_delete(&ospf->oi_write_q); | |
901 | ||
06bc3110 | 902 | /* Reset GR helper data structers */ |
903 | ospf_gr_helper_stop(ospf); | |
904 | ||
c32eba04 CS |
905 | close(ospf->fd); |
906 | stream_free(ospf->ibuf); | |
907 | ospf->fd = -1; | |
d62a17ae | 908 | ospf_delete(ospf); |
7c8ff89e | 909 | |
b5a8894d CS |
910 | if (ospf->name) { |
911 | vrf = vrf_lookup_by_name(ospf->name); | |
912 | if (vrf) | |
913 | ospf_vrf_unlink(ospf, vrf); | |
914 | XFREE(MTYPE_OSPF_TOP, ospf->name); | |
915 | } else { | |
916 | vrf = vrf_lookup_by_id(VRF_DEFAULT); | |
917 | if (vrf) | |
918 | ospf_vrf_unlink(ospf, vrf); | |
919 | } | |
920 | ||
d62a17ae | 921 | XFREE(MTYPE_OSPF_TOP, ospf); |
718e3744 | 922 | } |
923 | ||
6b0655a2 | 924 | |
718e3744 | 925 | /* allocate new OSPF Area object */ |
7fd0729f | 926 | struct ospf_area *ospf_area_new(struct ospf *ospf, struct in_addr area_id) |
718e3744 | 927 | { |
d62a17ae | 928 | struct ospf_area *new; |
718e3744 | 929 | |
d62a17ae | 930 | /* Allocate new config_network. */ |
931 | new = XCALLOC(MTYPE_OSPF_AREA, sizeof(struct ospf_area)); | |
718e3744 | 932 | |
d62a17ae | 933 | new->ospf = ospf; |
718e3744 | 934 | |
d62a17ae | 935 | new->area_id = area_id; |
936 | new->area_id_fmt = OSPF_AREA_ID_FMT_DOTTEDQUAD; | |
718e3744 | 937 | |
d62a17ae | 938 | new->external_routing = OSPF_AREA_DEFAULT; |
939 | new->default_cost = 1; | |
940 | new->auth_type = OSPF_AUTH_NULL; | |
718e3744 | 941 | |
d62a17ae | 942 | /* New LSDB init. */ |
943 | new->lsdb = ospf_lsdb_new(); | |
718e3744 | 944 | |
d62a17ae | 945 | /* Self-originated LSAs initialize. */ |
946 | new->router_lsa_self = NULL; | |
718e3744 | 947 | |
d62a17ae | 948 | ospf_opaque_type10_lsa_init(new); |
718e3744 | 949 | |
d62a17ae | 950 | new->oiflist = list_new(); |
951 | new->ranges = route_table_init(); | |
718e3744 | 952 | |
d62a17ae | 953 | if (area_id.s_addr == OSPF_AREA_BACKBONE) |
954 | ospf->backbone = new; | |
955 | ||
956 | return new; | |
718e3744 | 957 | } |
958 | ||
f91ce319 | 959 | void ospf_area_lsdb_discard_delete(struct ospf_area *area) |
718e3744 | 960 | { |
d62a17ae | 961 | struct route_node *rn; |
962 | struct ospf_lsa *lsa; | |
963 | ||
996c9314 | 964 | LSDB_LOOP (ROUTER_LSDB(area), rn, lsa) |
044506e7 | 965 | ospf_discard_from_db(area->ospf, area->lsdb, lsa); |
996c9314 | 966 | LSDB_LOOP (NETWORK_LSDB(area), rn, lsa) |
044506e7 | 967 | ospf_discard_from_db(area->ospf, area->lsdb, lsa); |
996c9314 | 968 | LSDB_LOOP (SUMMARY_LSDB(area), rn, lsa) |
044506e7 | 969 | ospf_discard_from_db(area->ospf, area->lsdb, lsa); |
996c9314 | 970 | LSDB_LOOP (ASBR_SUMMARY_LSDB(area), rn, lsa) |
044506e7 | 971 | ospf_discard_from_db(area->ospf, area->lsdb, lsa); |
68980084 | 972 | |
996c9314 | 973 | LSDB_LOOP (NSSA_LSDB(area), rn, lsa) |
044506e7 | 974 | ospf_discard_from_db(area->ospf, area->lsdb, lsa); |
996c9314 | 975 | LSDB_LOOP (OPAQUE_AREA_LSDB(area), rn, lsa) |
044506e7 | 976 | ospf_discard_from_db(area->ospf, area->lsdb, lsa); |
996c9314 | 977 | LSDB_LOOP (OPAQUE_LINK_LSDB(area), rn, lsa) |
044506e7 | 978 | ospf_discard_from_db(area->ospf, area->lsdb, lsa); |
718e3744 | 979 | |
d62a17ae | 980 | ospf_lsdb_delete_all(area->lsdb); |
f91ce319 MR |
981 | } |
982 | ||
983 | static void ospf_area_free(struct ospf_area *area) | |
984 | { | |
985 | ospf_opaque_type10_lsa_term(area); | |
986 | ||
987 | /* Free LSDBs. */ | |
988 | ospf_area_lsdb_discard_delete(area); | |
989 | ||
d62a17ae | 990 | ospf_lsdb_free(area->lsdb); |
718e3744 | 991 | |
d62a17ae | 992 | ospf_lsa_unlock(&area->router_lsa_self); |
718e3744 | 993 | |
d62a17ae | 994 | route_table_finish(area->ranges); |
6a154c88 | 995 | list_delete(&area->oiflist); |
718e3744 | 996 | |
d62a17ae | 997 | if (EXPORT_NAME(area)) |
998 | free(EXPORT_NAME(area)); | |
718e3744 | 999 | |
d62a17ae | 1000 | if (IMPORT_NAME(area)) |
1001 | free(IMPORT_NAME(area)); | |
718e3744 | 1002 | |
d62a17ae | 1003 | /* Cancel timer. */ |
1004 | OSPF_TIMER_OFF(area->t_stub_router); | |
1005 | OSPF_TIMER_OFF(area->t_opaque_lsa_self); | |
718e3744 | 1006 | |
d62a17ae | 1007 | if (OSPF_IS_AREA_BACKBONE(area)) |
1008 | area->ospf->backbone = NULL; | |
1009 | ||
1010 | XFREE(MTYPE_OSPF_AREA, area); | |
718e3744 | 1011 | } |
1012 | ||
d62a17ae | 1013 | void ospf_area_check_free(struct ospf *ospf, struct in_addr area_id) |
718e3744 | 1014 | { |
d62a17ae | 1015 | struct ospf_area *area; |
718e3744 | 1016 | |
d62a17ae | 1017 | area = ospf_area_lookup_by_area_id(ospf, area_id); |
1018 | if (area && listcount(area->oiflist) == 0 && area->ranges->top == NULL | |
19ce7d5e | 1019 | && !ospf_vl_count(ospf, area) |
d62a17ae | 1020 | && area->shortcut_configured == OSPF_SHORTCUT_DEFAULT |
1021 | && area->external_routing == OSPF_AREA_DEFAULT | |
1022 | && area->no_summary == 0 && area->default_cost == 1 | |
1023 | && EXPORT_NAME(area) == NULL && IMPORT_NAME(area) == NULL | |
1024 | && area->auth_type == OSPF_AUTH_NULL) { | |
1025 | listnode_delete(ospf->areas, area); | |
1026 | ospf_area_free(area); | |
1027 | } | |
718e3744 | 1028 | } |
1029 | ||
d62a17ae | 1030 | struct ospf_area *ospf_area_get(struct ospf *ospf, struct in_addr area_id) |
718e3744 | 1031 | { |
d62a17ae | 1032 | struct ospf_area *area; |
1033 | ||
1034 | area = ospf_area_lookup_by_area_id(ospf, area_id); | |
1035 | if (!area) { | |
1036 | area = ospf_area_new(ospf, area_id); | |
1037 | listnode_add_sort(ospf->areas, area); | |
1038 | ospf_check_abr_status(ospf); | |
1039 | if (ospf->stub_router_admin_set | |
1040 | == OSPF_STUB_ROUTER_ADMINISTRATIVE_SET) { | |
1041 | SET_FLAG(area->stub_router_state, | |
1042 | OSPF_AREA_ADMIN_STUB_ROUTED); | |
1043 | } | |
1044 | } | |
718e3744 | 1045 | |
d62a17ae | 1046 | return area; |
718e3744 | 1047 | } |
1048 | ||
d62a17ae | 1049 | struct ospf_area *ospf_area_lookup_by_area_id(struct ospf *ospf, |
1050 | struct in_addr area_id) | |
718e3744 | 1051 | { |
d62a17ae | 1052 | struct ospf_area *area; |
1053 | struct listnode *node; | |
718e3744 | 1054 | |
d62a17ae | 1055 | for (ALL_LIST_ELEMENTS_RO(ospf->areas, node, area)) |
1056 | if (IPV4_ADDR_SAME(&area->area_id, &area_id)) | |
1057 | return area; | |
718e3744 | 1058 | |
d62a17ae | 1059 | return NULL; |
718e3744 | 1060 | } |
1061 | ||
d62a17ae | 1062 | void ospf_area_add_if(struct ospf_area *area, struct ospf_interface *oi) |
718e3744 | 1063 | { |
d62a17ae | 1064 | listnode_add(area->oiflist, oi); |
718e3744 | 1065 | } |
1066 | ||
d62a17ae | 1067 | void ospf_area_del_if(struct ospf_area *area, struct ospf_interface *oi) |
718e3744 | 1068 | { |
d62a17ae | 1069 | listnode_delete(area->oiflist, oi); |
718e3744 | 1070 | } |
1071 | ||
52c62ab8 | 1072 | |
7fd0729f G |
1073 | struct ospf_interface *add_ospf_interface(struct connected *co, |
1074 | struct ospf_area *area) | |
953cde65 | 1075 | { |
d62a17ae | 1076 | struct ospf_interface *oi; |
953cde65 | 1077 | |
d62a17ae | 1078 | oi = ospf_if_new(area->ospf, co->ifp, co->address); |
1079 | oi->connected = co; | |
953cde65 | 1080 | |
d62a17ae | 1081 | oi->area = area; |
953cde65 | 1082 | |
d62a17ae | 1083 | oi->params = ospf_lookup_if_params(co->ifp, oi->address->u.prefix4); |
1084 | oi->output_cost = ospf_if_get_output_cost(oi); | |
953cde65 | 1085 | |
d62a17ae | 1086 | /* Relate ospf interface to ospf instance. */ |
1087 | oi->ospf = area->ospf; | |
953cde65 | 1088 | |
d62a17ae | 1089 | /* update network type as interface flag */ |
1090 | /* If network type is specified previously, | |
1091 | skip network type setting. */ | |
1092 | oi->type = IF_DEF_PARAMS(co->ifp)->type; | |
953cde65 | 1093 | |
d62a17ae | 1094 | /* Add pseudo neighbor. */ |
1095 | ospf_nbr_self_reset(oi, oi->ospf->router_id); | |
953cde65 | 1096 | |
d62a17ae | 1097 | ospf_area_add_if(oi->area, oi); |
52c62ab8 | 1098 | |
132a782e | 1099 | /* if LDP-IGP Sync is configured globally inherit config */ |
1100 | ospf_ldp_sync_if_init(oi); | |
1101 | ||
d62a17ae | 1102 | /* |
1103 | * if router_id is not configured, dont bring up | |
1104 | * interfaces. | |
1105 | * ospf_router_id_update() will call ospf_if_update | |
1106 | * whenever r-id is configured instead. | |
1107 | */ | |
975a328e DA |
1108 | if ((area->ospf->router_id.s_addr != INADDR_ANY) |
1109 | && if_is_operative(co->ifp)) | |
d62a17ae | 1110 | ospf_if_up(oi); |
7fd0729f G |
1111 | |
1112 | return oi; | |
953cde65 JT |
1113 | } |
1114 | ||
1115 | static void update_redistributed(struct ospf *ospf, int add_to_ospf) | |
1116 | { | |
d62a17ae | 1117 | struct route_node *rn; |
1118 | struct external_info *ei; | |
1119 | struct ospf_external *ext; | |
1120 | ||
de1ac5fd CS |
1121 | if (ospf_is_type_redistributed(ospf, ZEBRA_ROUTE_CONNECT, 0)) { |
1122 | ext = ospf_external_lookup(ospf, ZEBRA_ROUTE_CONNECT, 0); | |
1123 | if ((ext) && EXTERNAL_INFO(ext)) { | |
d62a17ae | 1124 | for (rn = route_top(EXTERNAL_INFO(ext)); rn; |
1125 | rn = route_next(rn)) { | |
de1ac5fd CS |
1126 | ei = rn->info; |
1127 | if (ei == NULL) | |
1128 | continue; | |
1129 | ||
1130 | if (add_to_ospf) { | |
996c9314 LB |
1131 | if (ospf_external_info_find_lsa(ospf, |
1132 | &ei->p)) | |
de1ac5fd CS |
1133 | if (!ospf_distribute_check_connected( |
1134 | ospf, ei)) | |
1135 | ospf_external_lsa_flush( | |
996c9314 | 1136 | ospf, ei->type, |
de1ac5fd CS |
1137 | &ei->p, |
1138 | ei->ifindex /*, ei->nexthop */); | |
1139 | } else { | |
1140 | if (!ospf_external_info_find_lsa( | |
1141 | ospf, &ei->p)) | |
1142 | if (ospf_distribute_check_connected( | |
1143 | ospf, ei)) | |
1144 | ospf_external_lsa_originate( | |
996c9314 | 1145 | ospf, ei); |
d62a17ae | 1146 | } |
1147 | } | |
1148 | } | |
de1ac5fd | 1149 | } |
953cde65 JT |
1150 | } |
1151 | ||
718e3744 | 1152 | /* Config network statement related functions. */ |
d62a17ae | 1153 | static struct ospf_network *ospf_network_new(struct in_addr area_id) |
718e3744 | 1154 | { |
d62a17ae | 1155 | struct ospf_network *new; |
1156 | new = XCALLOC(MTYPE_OSPF_NETWORK, sizeof(struct ospf_network)); | |
718e3744 | 1157 | |
d62a17ae | 1158 | new->area_id = area_id; |
1159 | new->area_id_fmt = OSPF_AREA_ID_FMT_DOTTEDQUAD; | |
1160 | ||
1161 | return new; | |
718e3744 | 1162 | } |
1163 | ||
d62a17ae | 1164 | static void ospf_network_free(struct ospf *ospf, struct ospf_network *network) |
718e3744 | 1165 | { |
d62a17ae | 1166 | ospf_area_check_free(ospf, network->area_id); |
1167 | ospf_schedule_abr_task(ospf); | |
1168 | XFREE(MTYPE_OSPF_NETWORK, network); | |
718e3744 | 1169 | } |
1170 | ||
d62a17ae | 1171 | int ospf_network_set(struct ospf *ospf, struct prefix_ipv4 *p, |
1172 | struct in_addr area_id, int df) | |
718e3744 | 1173 | { |
d62a17ae | 1174 | struct ospf_network *network; |
1175 | struct ospf_area *area; | |
1176 | struct route_node *rn; | |
718e3744 | 1177 | |
d62a17ae | 1178 | rn = route_node_get(ospf->networks, (struct prefix *)p); |
1179 | if (rn->info) { | |
2b0a905a | 1180 | network = rn->info; |
d62a17ae | 1181 | route_unlock_node(rn); |
2b0a905a DW |
1182 | |
1183 | if (IPV4_ADDR_SAME(&area_id, &network->area_id)) { | |
1184 | return 1; | |
1185 | } else { | |
1186 | /* There is already same network statement. */ | |
1187 | return 0; | |
1188 | } | |
d62a17ae | 1189 | } |
718e3744 | 1190 | |
d62a17ae | 1191 | rn->info = network = ospf_network_new(area_id); |
1192 | network->area_id_fmt = df; | |
1193 | area = ospf_area_get(ospf, area_id); | |
1194 | ospf_area_display_format_set(ospf, area, df); | |
718e3744 | 1195 | |
d62a17ae | 1196 | /* Run network config now. */ |
1197 | ospf_network_run((struct prefix *)p, area); | |
718e3744 | 1198 | |
d62a17ae | 1199 | /* Update connected redistribute. */ |
1200 | update_redistributed(ospf, 1); /* interfaces possibly added */ | |
718e3744 | 1201 | |
d62a17ae | 1202 | ospf_area_check_free(ospf, area_id); |
718e3744 | 1203 | |
d62a17ae | 1204 | return 1; |
718e3744 | 1205 | } |
1206 | ||
d62a17ae | 1207 | int ospf_network_unset(struct ospf *ospf, struct prefix_ipv4 *p, |
1208 | struct in_addr area_id) | |
718e3744 | 1209 | { |
d62a17ae | 1210 | struct route_node *rn; |
1211 | struct ospf_network *network; | |
1212 | struct listnode *node, *nnode; | |
1213 | struct ospf_interface *oi; | |
718e3744 | 1214 | |
d62a17ae | 1215 | rn = route_node_lookup(ospf->networks, (struct prefix *)p); |
1216 | if (rn == NULL) | |
1217 | return 0; | |
718e3744 | 1218 | |
d62a17ae | 1219 | network = rn->info; |
1220 | route_unlock_node(rn); | |
1221 | if (!IPV4_ADDR_SAME(&area_id, &network->area_id)) | |
1222 | return 0; | |
718e3744 | 1223 | |
d62a17ae | 1224 | ospf_network_free(ospf, rn->info); |
1225 | rn->info = NULL; | |
1226 | route_unlock_node(rn); /* initial reference */ | |
718e3744 | 1227 | |
30c0daa4 | 1228 | /* Find interfaces that are not configured already. */ |
d62a17ae | 1229 | for (ALL_LIST_ELEMENTS(ospf->oiflist, node, nnode, oi)) { |
30c0daa4 | 1230 | |
996c9314 LB |
1231 | if (oi->type == OSPF_IFTYPE_VIRTUALLINK) |
1232 | continue; | |
30c0daa4 | 1233 | |
996c9314 | 1234 | ospf_network_run_subnet(ospf, oi->connected, NULL, NULL); |
d62a17ae | 1235 | } |
953cde65 | 1236 | |
d62a17ae | 1237 | /* Update connected redistribute. */ |
1238 | update_redistributed(ospf, 0); /* interfaces possibly removed */ | |
1239 | ospf_area_check_free(ospf, area_id); | |
1240 | ||
1241 | return 1; | |
953cde65 JT |
1242 | } |
1243 | ||
52c62ab8 JAG |
1244 | /* Ensure there's an OSPF instance, as "ip ospf area" enabled OSPF means |
1245 | * there might not be any 'router ospf' config. | |
1246 | * | |
1247 | * Otherwise, doesn't do anything different to ospf_if_update for now | |
1248 | */ | |
b5a8894d | 1249 | void ospf_interface_area_set(struct ospf *ospf, struct interface *ifp) |
953cde65 | 1250 | { |
b5a8894d CS |
1251 | if (!ospf) |
1252 | return; | |
d62a17ae | 1253 | |
1254 | ospf_if_update(ospf, ifp); | |
1255 | /* if_update does a update_redistributed */ | |
1256 | ||
1257 | return; | |
953cde65 JT |
1258 | } |
1259 | ||
b5a8894d | 1260 | void ospf_interface_area_unset(struct ospf *ospf, struct interface *ifp) |
953cde65 | 1261 | { |
d62a17ae | 1262 | struct route_node *rn_oi; |
953cde65 | 1263 | |
d62a17ae | 1264 | if (!ospf) |
1265 | return; /* Ospf not ready yet */ | |
953cde65 | 1266 | |
d62a17ae | 1267 | /* Find interfaces that may need to be removed. */ |
1268 | for (rn_oi = route_top(IF_OIFS(ifp)); rn_oi; | |
1269 | rn_oi = route_next(rn_oi)) { | |
b5a8894d | 1270 | struct ospf_interface *oi = NULL; |
d62a17ae | 1271 | |
1272 | if ((oi = rn_oi->info) == NULL) | |
1273 | continue; | |
1274 | ||
1275 | if (oi->type == OSPF_IFTYPE_VIRTUALLINK) | |
1276 | continue; | |
1277 | ||
1278 | ospf_network_run_subnet(ospf, oi->connected, NULL, NULL); | |
1279 | } | |
953cde65 | 1280 | |
d62a17ae | 1281 | /* Update connected redistribute. */ |
1282 | update_redistributed(ospf, 0); /* interfaces possibly removed */ | |
718e3744 | 1283 | } |
1284 | ||
570f7598 | 1285 | /* Check whether interface matches given network |
1286 | * returns: 1, true. 0, false | |
1287 | */ | |
d62a17ae | 1288 | static int ospf_network_match_iface(const struct connected *co, |
1289 | const struct prefix *net) | |
570f7598 | 1290 | { |
d62a17ae | 1291 | /* new approach: more elegant and conceptually clean */ |
1292 | return prefix_match_network_statement(net, CONNECTED_PREFIX(co)); | |
570f7598 | 1293 | } |
1294 | ||
d62a17ae | 1295 | static void ospf_update_interface_area(struct connected *co, |
1296 | struct ospf_area *area) | |
52c62ab8 | 1297 | { |
d62a17ae | 1298 | struct ospf_interface *oi = ospf_if_table_lookup(co->ifp, co->address); |
1299 | ||
1300 | /* nothing to be done case */ | |
1301 | if (oi && oi->area == area) { | |
1302 | return; | |
1303 | } | |
1304 | ||
1305 | if (oi) | |
1306 | ospf_if_free(oi); | |
1307 | ||
1308 | add_ospf_interface(co, area); | |
52c62ab8 JAG |
1309 | } |
1310 | ||
1311 | /* Run OSPF for the given subnet, taking into account the following | |
1312 | * possible sources of area configuration, in the given order of preference: | |
1313 | * | |
1314 | * - Whether there is interface+address specific area configuration | |
1315 | * - Whether there is a default area for the interface | |
1316 | * - Whether there is an area given as a parameter. | |
1317 | * - If no specific network prefix/area is supplied, whether there's | |
1318 | * a matching network configured. | |
1319 | */ | |
d62a17ae | 1320 | static void ospf_network_run_subnet(struct ospf *ospf, struct connected *co, |
1321 | struct prefix *p, | |
1322 | struct ospf_area *given_area) | |
1323 | { | |
1324 | struct ospf_interface *oi; | |
1325 | struct ospf_if_params *params; | |
1326 | struct ospf_area *area = NULL; | |
1327 | struct route_node *rn; | |
1328 | int configed = 0; | |
1329 | ||
1330 | if (CHECK_FLAG(co->flags, ZEBRA_IFA_SECONDARY)) | |
1331 | return; | |
1332 | ||
1333 | if (co->address->family != AF_INET) | |
1334 | return; | |
1335 | ||
1336 | /* Try determine the appropriate area for this interface + address | |
1337 | * Start by checking interface config | |
1338 | */ | |
1339 | params = ospf_lookup_if_params(co->ifp, co->address->u.prefix4); | |
1340 | if (params && OSPF_IF_PARAM_CONFIGURED(params, if_area)) | |
1341 | area = ospf_area_get(ospf, params->if_area); | |
1342 | else { | |
1343 | params = IF_DEF_PARAMS(co->ifp); | |
1344 | if (OSPF_IF_PARAM_CONFIGURED(params, if_area)) | |
1345 | area = ospf_area_get(ospf, params->if_area); | |
1346 | } | |
52c62ab8 | 1347 | |
d62a17ae | 1348 | /* If we've found an interface and/or addr specific area, then we're |
1349 | * done | |
1350 | */ | |
1351 | if (area) { | |
1352 | ospf_update_interface_area(co, area); | |
1353 | return; | |
1354 | } | |
718e3744 | 1355 | |
d62a17ae | 1356 | /* Otherwise, only remaining possibility is a matching network statement |
1357 | */ | |
1358 | if (p) { | |
1359 | assert(given_area != NULL); | |
1360 | ||
1361 | /* Which either was supplied as a parameter.. (e.g. cause a new | |
1362 | * network/area was just added).. | |
1363 | */ | |
1364 | if (p->family == co->address->family | |
1365 | && ospf_network_match_iface(co, p)) | |
1366 | ospf_update_interface_area(co, given_area); | |
1367 | ||
1368 | return; | |
1369 | } | |
1370 | ||
1371 | /* Else we have to search the existing network/area config to see | |
1372 | * if any match.. | |
1373 | */ | |
1374 | for (rn = route_top(ospf->networks); rn; rn = route_next(rn)) | |
1375 | if (rn->info != NULL && ospf_network_match_iface(co, &rn->p)) { | |
1376 | struct ospf_network *network = | |
1377 | (struct ospf_network *)rn->info; | |
1378 | area = ospf_area_get(ospf, network->area_id); | |
1379 | ospf_update_interface_area(co, area); | |
1380 | configed = 1; | |
1381 | } | |
1382 | ||
1383 | /* If the subnet isn't in any area, deconfigure */ | |
1384 | if (!configed && (oi = ospf_if_table_lookup(co->ifp, co->address))) | |
1385 | ospf_if_free(oi); | |
718e3744 | 1386 | } |
1387 | ||
d62a17ae | 1388 | static void ospf_network_run_interface(struct ospf *ospf, struct interface *ifp, |
1389 | struct prefix *p, | |
1390 | struct ospf_area *given_area) | |
718e3744 | 1391 | { |
d62a17ae | 1392 | struct listnode *cnode; |
1393 | struct connected *co; | |
1394 | ||
1395 | if (memcmp(ifp->name, "VLINK", 5) == 0) | |
1396 | return; | |
718e3744 | 1397 | |
d62a17ae | 1398 | /* Network prefix without area is nonsensical */ |
1399 | if (p) | |
1400 | assert(given_area != NULL); | |
1401 | ||
1402 | /* if interface prefix is match specified prefix, | |
1403 | then create socket and join multicast group. */ | |
1404 | for (ALL_LIST_ELEMENTS_RO(ifp->connected, cnode, co)) | |
1405 | ospf_network_run_subnet(ospf, co, p, given_area); | |
718e3744 | 1406 | } |
1407 | ||
d62a17ae | 1408 | static void ospf_network_run(struct prefix *p, struct ospf_area *area) |
718e3744 | 1409 | { |
f4e14fdb | 1410 | struct vrf *vrf = vrf_lookup_by_id(area->ospf->vrf_id); |
d62a17ae | 1411 | struct interface *ifp; |
d62a17ae | 1412 | |
1413 | /* Schedule Router ID Update. */ | |
975a328e | 1414 | if (area->ospf->router_id.s_addr == INADDR_ANY) |
d62a17ae | 1415 | ospf_router_id_update(area->ospf); |
718e3744 | 1416 | |
d62a17ae | 1417 | /* Get target interface. */ |
451fda4f | 1418 | FOR_ALL_INTERFACES (vrf, ifp) |
d62a17ae | 1419 | ospf_network_run_interface(area->ospf, ifp, p, area); |
718e3744 | 1420 | } |
1421 | ||
d62a17ae | 1422 | void ospf_ls_upd_queue_empty(struct ospf_interface *oi) |
1423 | { | |
1424 | struct route_node *rn; | |
1425 | struct listnode *node, *nnode; | |
1426 | struct list *lst; | |
1427 | struct ospf_lsa *lsa; | |
1428 | ||
1429 | /* empty ls update queue */ | |
1430 | for (rn = route_top(oi->ls_upd_queue); rn; rn = route_next(rn)) | |
1431 | if ((lst = (struct list *)rn->info)) { | |
1432 | for (ALL_LIST_ELEMENTS(lst, node, nnode, lsa)) | |
1433 | ospf_lsa_unlock(&lsa); /* oi->ls_upd_queue */ | |
6a154c88 | 1434 | list_delete(&lst); |
d62a17ae | 1435 | rn->info = NULL; |
1436 | } | |
1437 | ||
1438 | /* remove update event */ | |
b3d6bc6e | 1439 | thread_cancel(&oi->t_ls_upd_event); |
d62a17ae | 1440 | } |
6b0655a2 | 1441 | |
d62a17ae | 1442 | void ospf_if_update(struct ospf *ospf, struct interface *ifp) |
718e3744 | 1443 | { |
43b8d1d8 | 1444 | |
d62a17ae | 1445 | if (!ospf) |
43b8d1d8 | 1446 | return; |
b5a8894d CS |
1447 | |
1448 | if (IS_DEBUG_OSPF_EVENT) | |
996c9314 | 1449 | zlog_debug( |
96b663a3 | 1450 | "%s: interface %s ifp->vrf_id %u ospf vrf %s vrf_id %u router_id %pI4", |
15569c58 | 1451 | __func__, ifp->name, ifp->vrf_id, |
996c9314 | 1452 | ospf_vrf_id_to_name(ospf->vrf_id), ospf->vrf_id, |
96b663a3 | 1453 | &ospf->router_id); |
d62a17ae | 1454 | |
1455 | /* OSPF must be ready. */ | |
1456 | if (!ospf_is_ready(ospf)) | |
1457 | return; | |
1458 | ||
1459 | ospf_network_run_interface(ospf, ifp, NULL, NULL); | |
1460 | ||
1461 | /* Update connected redistribute. */ | |
1462 | update_redistributed(ospf, 1); | |
ef7bd2a3 | 1463 | |
d62a17ae | 1464 | } |
718e3744 | 1465 | |
d62a17ae | 1466 | void ospf_remove_vls_through_area(struct ospf *ospf, struct ospf_area *area) |
718e3744 | 1467 | { |
d62a17ae | 1468 | struct listnode *node, *nnode; |
1469 | struct ospf_vl_data *vl_data; | |
718e3744 | 1470 | |
d62a17ae | 1471 | for (ALL_LIST_ELEMENTS(ospf->vlinks, node, nnode, vl_data)) |
1472 | if (IPV4_ADDR_SAME(&vl_data->vl_area_id, &area->area_id)) | |
1473 | ospf_vl_delete(ospf, vl_data); | |
1474 | } | |
718e3744 | 1475 | |
718e3744 | 1476 | |
d62a17ae | 1477 | static const struct message ospf_area_type_msg[] = { |
1478 | {OSPF_AREA_DEFAULT, "Default"}, | |
1479 | {OSPF_AREA_STUB, "Stub"}, | |
1480 | {OSPF_AREA_NSSA, "NSSA"}, | |
1481 | {0}}; | |
718e3744 | 1482 | |
d62a17ae | 1483 | static void ospf_area_type_set(struct ospf_area *area, int type) |
1484 | { | |
1485 | struct listnode *node; | |
1486 | struct ospf_interface *oi; | |
1487 | ||
1488 | if (area->external_routing == type) { | |
1489 | if (IS_DEBUG_OSPF_EVENT) | |
96b663a3 MS |
1490 | zlog_debug("Area[%pI4]: Types are the same, ignored.", |
1491 | &area->area_id); | |
d62a17ae | 1492 | return; |
1493 | } | |
718e3744 | 1494 | |
d62a17ae | 1495 | area->external_routing = type; |
1496 | ||
1497 | if (IS_DEBUG_OSPF_EVENT) | |
96b663a3 MS |
1498 | zlog_debug("Area[%pI4]: Configured as %s", |
1499 | &area->area_id, | |
d62a17ae | 1500 | lookup_msg(ospf_area_type_msg, type, NULL)); |
1501 | ||
1502 | switch (area->external_routing) { | |
1503 | case OSPF_AREA_DEFAULT: | |
1504 | for (ALL_LIST_ELEMENTS_RO(area->oiflist, node, oi)) | |
1505 | if (oi->nbr_self != NULL) { | |
1506 | UNSET_FLAG(oi->nbr_self->options, | |
1507 | OSPF_OPTION_NP); | |
1508 | SET_FLAG(oi->nbr_self->options, OSPF_OPTION_E); | |
1509 | } | |
1510 | break; | |
1511 | case OSPF_AREA_STUB: | |
1512 | for (ALL_LIST_ELEMENTS_RO(area->oiflist, node, oi)) | |
1513 | if (oi->nbr_self != NULL) { | |
1514 | if (IS_DEBUG_OSPF_EVENT) | |
1515 | zlog_debug( | |
1516 | "setting options on %s accordingly", | |
1517 | IF_NAME(oi)); | |
1518 | UNSET_FLAG(oi->nbr_self->options, | |
1519 | OSPF_OPTION_NP); | |
1520 | UNSET_FLAG(oi->nbr_self->options, | |
1521 | OSPF_OPTION_E); | |
1522 | if (IS_DEBUG_OSPF_EVENT) | |
1523 | zlog_debug("options set on %s: %x", | |
1524 | IF_NAME(oi), OPTIONS(oi)); | |
1525 | } | |
1526 | break; | |
1527 | case OSPF_AREA_NSSA: | |
1528 | for (ALL_LIST_ELEMENTS_RO(area->oiflist, node, oi)) | |
1529 | if (oi->nbr_self != NULL) { | |
1530 | zlog_debug( | |
1531 | "setting nssa options on %s accordingly", | |
1532 | IF_NAME(oi)); | |
1533 | UNSET_FLAG(oi->nbr_self->options, | |
1534 | OSPF_OPTION_E); | |
1535 | SET_FLAG(oi->nbr_self->options, OSPF_OPTION_NP); | |
1536 | zlog_debug("options set on %s: %x", IF_NAME(oi), | |
1537 | OPTIONS(oi)); | |
1538 | } | |
1539 | break; | |
1540 | default: | |
1541 | break; | |
1542 | } | |
1543 | ||
1544 | ospf_router_lsa_update_area(area); | |
1545 | ospf_schedule_abr_task(area->ospf); | |
718e3744 | 1546 | } |
1547 | ||
d62a17ae | 1548 | int ospf_area_shortcut_set(struct ospf *ospf, struct ospf_area *area, int mode) |
718e3744 | 1549 | { |
d62a17ae | 1550 | if (area->shortcut_configured == mode) |
1551 | return 0; | |
718e3744 | 1552 | |
d62a17ae | 1553 | area->shortcut_configured = mode; |
1554 | ospf_router_lsa_update_area(area); | |
1555 | ospf_schedule_abr_task(ospf); | |
718e3744 | 1556 | |
d62a17ae | 1557 | ospf_area_check_free(ospf, area->area_id); |
718e3744 | 1558 | |
d62a17ae | 1559 | return 1; |
718e3744 | 1560 | } |
1561 | ||
d62a17ae | 1562 | int ospf_area_shortcut_unset(struct ospf *ospf, struct ospf_area *area) |
718e3744 | 1563 | { |
d62a17ae | 1564 | area->shortcut_configured = OSPF_SHORTCUT_DEFAULT; |
1565 | ospf_router_lsa_update_area(area); | |
1566 | ospf_area_check_free(ospf, area->area_id); | |
1567 | ospf_schedule_abr_task(ospf); | |
718e3744 | 1568 | |
d62a17ae | 1569 | return 1; |
718e3744 | 1570 | } |
1571 | ||
d62a17ae | 1572 | static int ospf_area_vlink_count(struct ospf *ospf, struct ospf_area *area) |
718e3744 | 1573 | { |
d62a17ae | 1574 | struct ospf_vl_data *vl; |
1575 | struct listnode *node; | |
1576 | int count = 0; | |
718e3744 | 1577 | |
d62a17ae | 1578 | for (ALL_LIST_ELEMENTS_RO(ospf->vlinks, node, vl)) |
1579 | if (IPV4_ADDR_SAME(&vl->vl_area_id, &area->area_id)) | |
1580 | count++; | |
718e3744 | 1581 | |
d62a17ae | 1582 | return count; |
718e3744 | 1583 | } |
1584 | ||
d62a17ae | 1585 | int ospf_area_display_format_set(struct ospf *ospf, struct ospf_area *area, |
1586 | int df) | |
86573dcb | 1587 | { |
d62a17ae | 1588 | area->area_id_fmt = df; |
86573dcb | 1589 | |
d62a17ae | 1590 | return 1; |
86573dcb QY |
1591 | } |
1592 | ||
d62a17ae | 1593 | int ospf_area_stub_set(struct ospf *ospf, struct in_addr area_id) |
718e3744 | 1594 | { |
d62a17ae | 1595 | struct ospf_area *area; |
718e3744 | 1596 | |
d62a17ae | 1597 | area = ospf_area_get(ospf, area_id); |
1598 | if (ospf_area_vlink_count(ospf, area)) | |
1599 | return 0; | |
718e3744 | 1600 | |
d62a17ae | 1601 | if (area->external_routing != OSPF_AREA_STUB) |
1602 | ospf_area_type_set(area, OSPF_AREA_STUB); | |
718e3744 | 1603 | |
d62a17ae | 1604 | return 1; |
718e3744 | 1605 | } |
1606 | ||
d62a17ae | 1607 | int ospf_area_stub_unset(struct ospf *ospf, struct in_addr area_id) |
718e3744 | 1608 | { |
d62a17ae | 1609 | struct ospf_area *area; |
718e3744 | 1610 | |
d62a17ae | 1611 | area = ospf_area_lookup_by_area_id(ospf, area_id); |
1612 | if (area == NULL) | |
1613 | return 1; | |
718e3744 | 1614 | |
d62a17ae | 1615 | if (area->external_routing == OSPF_AREA_STUB) |
1616 | ospf_area_type_set(area, OSPF_AREA_DEFAULT); | |
718e3744 | 1617 | |
d62a17ae | 1618 | ospf_area_check_free(ospf, area_id); |
718e3744 | 1619 | |
d62a17ae | 1620 | return 1; |
718e3744 | 1621 | } |
1622 | ||
d62a17ae | 1623 | int ospf_area_no_summary_set(struct ospf *ospf, struct in_addr area_id) |
718e3744 | 1624 | { |
d62a17ae | 1625 | struct ospf_area *area; |
718e3744 | 1626 | |
d62a17ae | 1627 | area = ospf_area_get(ospf, area_id); |
1628 | area->no_summary = 1; | |
718e3744 | 1629 | |
d62a17ae | 1630 | return 1; |
718e3744 | 1631 | } |
1632 | ||
d62a17ae | 1633 | int ospf_area_no_summary_unset(struct ospf *ospf, struct in_addr area_id) |
718e3744 | 1634 | { |
d62a17ae | 1635 | struct ospf_area *area; |
718e3744 | 1636 | |
d62a17ae | 1637 | area = ospf_area_lookup_by_area_id(ospf, area_id); |
1638 | if (area == NULL) | |
1639 | return 0; | |
718e3744 | 1640 | |
d62a17ae | 1641 | area->no_summary = 0; |
1642 | ospf_area_check_free(ospf, area_id); | |
718e3744 | 1643 | |
d62a17ae | 1644 | return 1; |
718e3744 | 1645 | } |
1646 | ||
7ef56a73 | 1647 | int ospf_area_nssa_no_summary_set(struct ospf *ospf, struct in_addr area_id) |
718e3744 | 1648 | { |
d62a17ae | 1649 | struct ospf_area *area; |
718e3744 | 1650 | |
d62a17ae | 1651 | area = ospf_area_get(ospf, area_id); |
1652 | if (ospf_area_vlink_count(ospf, area)) | |
1653 | return 0; | |
718e3744 | 1654 | |
d62a17ae | 1655 | if (area->external_routing != OSPF_AREA_NSSA) { |
1656 | ospf_area_type_set(area, OSPF_AREA_NSSA); | |
1657 | ospf->anyNSSA++; | |
7ef56a73 | 1658 | area->NSSATranslatorRole = OSPF_NSSA_ROLE_CANDIDATE; |
d62a17ae | 1659 | } |
718e3744 | 1660 | |
7ef56a73 | 1661 | ospf_area_no_summary_set(ospf, area_id); |
084c7844 | 1662 | |
d62a17ae | 1663 | return 1; |
718e3744 | 1664 | } |
1665 | ||
7ef56a73 CS |
1666 | int ospf_area_nssa_set(struct ospf *ospf, struct in_addr area_id) |
1667 | { | |
1668 | struct ospf_area *area; | |
1669 | ||
1670 | area = ospf_area_get(ospf, area_id); | |
1671 | if (ospf_area_vlink_count(ospf, area)) | |
1672 | return 0; | |
1673 | ||
1674 | if (area->external_routing != OSPF_AREA_NSSA) { | |
1675 | ospf_area_type_set(area, OSPF_AREA_NSSA); | |
1676 | ospf->anyNSSA++; | |
1677 | ||
1678 | /* set NSSA area defaults */ | |
1679 | area->no_summary = 0; | |
1680 | area->NSSATranslatorRole = OSPF_NSSA_ROLE_CANDIDATE; | |
1681 | area->NSSATranslatorState = OSPF_NSSA_TRANSLATE_DISABLED; | |
1682 | area->NSSATranslatorStabilityInterval = | |
1683 | OSPF_NSSA_TRANS_STABLE_DEFAULT; | |
1684 | } | |
1685 | return 1; | |
1686 | } | |
1687 | ||
1688 | int ospf_area_nssa_unset(struct ospf *ospf, struct in_addr area_id, int argc) | |
718e3744 | 1689 | { |
d62a17ae | 1690 | struct ospf_area *area; |
718e3744 | 1691 | |
d62a17ae | 1692 | area = ospf_area_lookup_by_area_id(ospf, area_id); |
1693 | if (area == NULL) | |
1694 | return 0; | |
718e3744 | 1695 | |
7ef56a73 CS |
1696 | /* argc < 5 -> 'no area x nssa' */ |
1697 | if (argc < 5 && area->external_routing == OSPF_AREA_NSSA) { | |
d62a17ae | 1698 | ospf->anyNSSA--; |
7ef56a73 CS |
1699 | /* set NSSA area defaults */ |
1700 | area->no_summary = 0; | |
1701 | area->NSSATranslatorRole = OSPF_NSSA_ROLE_CANDIDATE; | |
1702 | area->NSSATranslatorState = OSPF_NSSA_TRANSLATE_DISABLED; | |
1703 | area->NSSATranslatorStabilityInterval = | |
1704 | OSPF_NSSA_TRANS_STABLE_DEFAULT; | |
d62a17ae | 1705 | ospf_area_type_set(area, OSPF_AREA_DEFAULT); |
7ef56a73 | 1706 | } else { |
a987fe6b | 1707 | ospf_area_nssa_translator_role_set(ospf, area_id, |
1708 | OSPF_NSSA_ROLE_CANDIDATE); | |
d62a17ae | 1709 | } |
718e3744 | 1710 | |
d62a17ae | 1711 | ospf_area_check_free(ospf, area_id); |
718e3744 | 1712 | |
d62a17ae | 1713 | return 1; |
718e3744 | 1714 | } |
1715 | ||
d62a17ae | 1716 | int ospf_area_nssa_translator_role_set(struct ospf *ospf, |
1717 | struct in_addr area_id, int role) | |
718e3744 | 1718 | { |
d62a17ae | 1719 | struct ospf_area *area; |
718e3744 | 1720 | |
d62a17ae | 1721 | area = ospf_area_lookup_by_area_id(ospf, area_id); |
1722 | if (area == NULL) | |
1723 | return 0; | |
718e3744 | 1724 | |
a987fe6b | 1725 | if (role != area->NSSATranslatorRole) { |
1726 | if ((area->NSSATranslatorRole == OSPF_NSSA_ROLE_ALWAYS) | |
1727 | || (role == OSPF_NSSA_ROLE_ALWAYS)) { | |
1728 | /* RFC 3101 3.1 | |
1729 | * if new role is OSPF_NSSA_ROLE_ALWAYS we need to set | |
1730 | * Nt bit, if the role was OSPF_NSSA_ROLE_ALWAYS we need | |
1731 | * to clear Nt bit | |
1732 | */ | |
1733 | area->NSSATranslatorRole = role; | |
1734 | ospf_router_lsa_update_area(area); | |
1735 | } else | |
1736 | area->NSSATranslatorRole = role; | |
1737 | } | |
718e3744 | 1738 | |
d62a17ae | 1739 | return 1; |
718e3744 | 1740 | } |
1741 | ||
d62a17ae | 1742 | int ospf_area_export_list_set(struct ospf *ospf, struct ospf_area *area, |
1743 | const char *list_name) | |
718e3744 | 1744 | { |
d62a17ae | 1745 | struct access_list *list; |
1746 | list = access_list_lookup(AFI_IP, list_name); | |
718e3744 | 1747 | |
d62a17ae | 1748 | EXPORT_LIST(area) = list; |
718e3744 | 1749 | |
d62a17ae | 1750 | if (EXPORT_NAME(area)) |
1751 | free(EXPORT_NAME(area)); | |
718e3744 | 1752 | |
d62a17ae | 1753 | EXPORT_NAME(area) = strdup(list_name); |
1754 | ospf_schedule_abr_task(ospf); | |
718e3744 | 1755 | |
d62a17ae | 1756 | return 1; |
718e3744 | 1757 | } |
1758 | ||
d62a17ae | 1759 | int ospf_area_export_list_unset(struct ospf *ospf, struct ospf_area *area) |
718e3744 | 1760 | { |
1761 | ||
d62a17ae | 1762 | EXPORT_LIST(area) = 0; |
718e3744 | 1763 | |
d62a17ae | 1764 | if (EXPORT_NAME(area)) |
1765 | free(EXPORT_NAME(area)); | |
718e3744 | 1766 | |
d62a17ae | 1767 | EXPORT_NAME(area) = NULL; |
718e3744 | 1768 | |
d62a17ae | 1769 | ospf_area_check_free(ospf, area->area_id); |
718e3744 | 1770 | |
d62a17ae | 1771 | ospf_schedule_abr_task(ospf); |
1772 | ||
1773 | return 1; | |
718e3744 | 1774 | } |
1775 | ||
d62a17ae | 1776 | int ospf_area_import_list_set(struct ospf *ospf, struct ospf_area *area, |
1777 | const char *name) | |
718e3744 | 1778 | { |
d62a17ae | 1779 | struct access_list *list; |
1780 | list = access_list_lookup(AFI_IP, name); | |
718e3744 | 1781 | |
d62a17ae | 1782 | IMPORT_LIST(area) = list; |
718e3744 | 1783 | |
d62a17ae | 1784 | if (IMPORT_NAME(area)) |
1785 | free(IMPORT_NAME(area)); | |
718e3744 | 1786 | |
d62a17ae | 1787 | IMPORT_NAME(area) = strdup(name); |
1788 | ospf_schedule_abr_task(ospf); | |
718e3744 | 1789 | |
d62a17ae | 1790 | return 1; |
718e3744 | 1791 | } |
1792 | ||
d62a17ae | 1793 | int ospf_area_import_list_unset(struct ospf *ospf, struct ospf_area *area) |
718e3744 | 1794 | { |
d62a17ae | 1795 | IMPORT_LIST(area) = 0; |
718e3744 | 1796 | |
d62a17ae | 1797 | if (IMPORT_NAME(area)) |
1798 | free(IMPORT_NAME(area)); | |
718e3744 | 1799 | |
d62a17ae | 1800 | IMPORT_NAME(area) = NULL; |
1801 | ospf_area_check_free(ospf, area->area_id); | |
718e3744 | 1802 | |
d62a17ae | 1803 | ospf_schedule_abr_task(ospf); |
718e3744 | 1804 | |
d62a17ae | 1805 | return 1; |
718e3744 | 1806 | } |
1807 | ||
d62a17ae | 1808 | int ospf_timers_refresh_set(struct ospf *ospf, int interval) |
718e3744 | 1809 | { |
d62a17ae | 1810 | int time_left; |
718e3744 | 1811 | |
d62a17ae | 1812 | if (ospf->lsa_refresh_interval == interval) |
1813 | return 1; | |
718e3744 | 1814 | |
d62a17ae | 1815 | time_left = ospf->lsa_refresh_interval |
1816 | - (monotime(NULL) - ospf->lsa_refresher_started); | |
718e3744 | 1817 | |
d62a17ae | 1818 | if (time_left > interval) { |
1819 | OSPF_TIMER_OFF(ospf->t_lsa_refresher); | |
1820 | thread_add_timer(master, ospf_lsa_refresh_walker, ospf, | |
1821 | interval, &ospf->t_lsa_refresher); | |
1822 | } | |
1823 | ospf->lsa_refresh_interval = interval; | |
1824 | ||
1825 | return 1; | |
718e3744 | 1826 | } |
1827 | ||
d62a17ae | 1828 | int ospf_timers_refresh_unset(struct ospf *ospf) |
718e3744 | 1829 | { |
d62a17ae | 1830 | int time_left; |
718e3744 | 1831 | |
d62a17ae | 1832 | time_left = ospf->lsa_refresh_interval |
1833 | - (monotime(NULL) - ospf->lsa_refresher_started); | |
718e3744 | 1834 | |
d62a17ae | 1835 | if (time_left > OSPF_LSA_REFRESH_INTERVAL_DEFAULT) { |
1836 | OSPF_TIMER_OFF(ospf->t_lsa_refresher); | |
1837 | ospf->t_lsa_refresher = NULL; | |
1838 | thread_add_timer(master, ospf_lsa_refresh_walker, ospf, | |
1839 | OSPF_LSA_REFRESH_INTERVAL_DEFAULT, | |
1840 | &ospf->t_lsa_refresher); | |
1841 | } | |
718e3744 | 1842 | |
d62a17ae | 1843 | ospf->lsa_refresh_interval = OSPF_LSA_REFRESH_INTERVAL_DEFAULT; |
718e3744 | 1844 | |
d62a17ae | 1845 | return 1; |
718e3744 | 1846 | } |
1847 | ||
6b0655a2 | 1848 | |
d62a17ae | 1849 | static struct ospf_nbr_nbma *ospf_nbr_nbma_new(void) |
718e3744 | 1850 | { |
d62a17ae | 1851 | struct ospf_nbr_nbma *nbr_nbma; |
718e3744 | 1852 | |
d62a17ae | 1853 | nbr_nbma = XCALLOC(MTYPE_OSPF_NEIGHBOR_STATIC, |
1854 | sizeof(struct ospf_nbr_nbma)); | |
718e3744 | 1855 | |
d62a17ae | 1856 | nbr_nbma->priority = OSPF_NEIGHBOR_PRIORITY_DEFAULT; |
1857 | nbr_nbma->v_poll = OSPF_POLL_INTERVAL_DEFAULT; | |
718e3744 | 1858 | |
d62a17ae | 1859 | return nbr_nbma; |
718e3744 | 1860 | } |
1861 | ||
d62a17ae | 1862 | static void ospf_nbr_nbma_free(struct ospf_nbr_nbma *nbr_nbma) |
718e3744 | 1863 | { |
d62a17ae | 1864 | XFREE(MTYPE_OSPF_NEIGHBOR_STATIC, nbr_nbma); |
718e3744 | 1865 | } |
1866 | ||
d62a17ae | 1867 | static void ospf_nbr_nbma_delete(struct ospf *ospf, |
1868 | struct ospf_nbr_nbma *nbr_nbma) | |
718e3744 | 1869 | { |
d62a17ae | 1870 | struct route_node *rn; |
1871 | struct prefix_ipv4 p; | |
718e3744 | 1872 | |
d62a17ae | 1873 | p.family = AF_INET; |
1874 | p.prefix = nbr_nbma->addr; | |
1875 | p.prefixlen = IPV4_MAX_BITLEN; | |
718e3744 | 1876 | |
d62a17ae | 1877 | rn = route_node_lookup(ospf->nbr_nbma, (struct prefix *)&p); |
1878 | if (rn) { | |
1879 | ospf_nbr_nbma_free(rn->info); | |
1880 | rn->info = NULL; | |
1881 | route_unlock_node(rn); | |
1882 | route_unlock_node(rn); | |
1883 | } | |
718e3744 | 1884 | } |
1885 | ||
d62a17ae | 1886 | static void ospf_nbr_nbma_down(struct ospf_nbr_nbma *nbr_nbma) |
718e3744 | 1887 | { |
d62a17ae | 1888 | OSPF_TIMER_OFF(nbr_nbma->t_poll); |
718e3744 | 1889 | |
d62a17ae | 1890 | if (nbr_nbma->nbr) { |
1891 | nbr_nbma->nbr->nbr_nbma = NULL; | |
1892 | OSPF_NSM_EVENT_EXECUTE(nbr_nbma->nbr, NSM_KillNbr); | |
1893 | } | |
718e3744 | 1894 | |
d62a17ae | 1895 | if (nbr_nbma->oi) |
1896 | listnode_delete(nbr_nbma->oi->nbr_nbma, nbr_nbma); | |
718e3744 | 1897 | } |
1898 | ||
d62a17ae | 1899 | static void ospf_nbr_nbma_add(struct ospf_nbr_nbma *nbr_nbma, |
1900 | struct ospf_interface *oi) | |
718e3744 | 1901 | { |
d62a17ae | 1902 | struct ospf_neighbor *nbr; |
1903 | struct route_node *rn; | |
1904 | struct prefix p; | |
718e3744 | 1905 | |
d62a17ae | 1906 | if (oi->type != OSPF_IFTYPE_NBMA) |
1907 | return; | |
718e3744 | 1908 | |
d62a17ae | 1909 | if (nbr_nbma->nbr != NULL) |
1910 | return; | |
718e3744 | 1911 | |
d62a17ae | 1912 | if (IPV4_ADDR_SAME(&oi->nbr_self->address.u.prefix4, &nbr_nbma->addr)) |
1913 | return; | |
718e3744 | 1914 | |
d62a17ae | 1915 | nbr_nbma->oi = oi; |
1916 | listnode_add(oi->nbr_nbma, nbr_nbma); | |
718e3744 | 1917 | |
d62a17ae | 1918 | /* Get neighbor information from table. */ |
1919 | p.family = AF_INET; | |
1920 | p.prefixlen = IPV4_MAX_BITLEN; | |
1921 | p.u.prefix4 = nbr_nbma->addr; | |
718e3744 | 1922 | |
c4efd0f4 | 1923 | rn = route_node_get(oi->nbrs, &p); |
d62a17ae | 1924 | if (rn->info) { |
1925 | nbr = rn->info; | |
1926 | nbr->nbr_nbma = nbr_nbma; | |
1927 | nbr_nbma->nbr = nbr; | |
718e3744 | 1928 | |
d62a17ae | 1929 | route_unlock_node(rn); |
1930 | } else { | |
1931 | nbr = rn->info = ospf_nbr_new(oi); | |
1932 | nbr->state = NSM_Down; | |
1933 | nbr->src = nbr_nbma->addr; | |
1934 | nbr->nbr_nbma = nbr_nbma; | |
1935 | nbr->priority = nbr_nbma->priority; | |
1936 | nbr->address = p; | |
718e3744 | 1937 | |
d62a17ae | 1938 | nbr_nbma->nbr = nbr; |
1939 | ||
1940 | OSPF_NSM_EVENT_EXECUTE(nbr, NSM_Start); | |
1941 | } | |
718e3744 | 1942 | } |
1943 | ||
d62a17ae | 1944 | void ospf_nbr_nbma_if_update(struct ospf *ospf, struct ospf_interface *oi) |
718e3744 | 1945 | { |
d62a17ae | 1946 | struct ospf_nbr_nbma *nbr_nbma; |
1947 | struct route_node *rn; | |
1948 | struct prefix_ipv4 p; | |
718e3744 | 1949 | |
d62a17ae | 1950 | if (oi->type != OSPF_IFTYPE_NBMA) |
1951 | return; | |
718e3744 | 1952 | |
d62a17ae | 1953 | for (rn = route_top(ospf->nbr_nbma); rn; rn = route_next(rn)) |
1954 | if ((nbr_nbma = rn->info)) | |
1955 | if (nbr_nbma->oi == NULL && nbr_nbma->nbr == NULL) { | |
1956 | p.family = AF_INET; | |
1957 | p.prefix = nbr_nbma->addr; | |
1958 | p.prefixlen = IPV4_MAX_BITLEN; | |
718e3744 | 1959 | |
d62a17ae | 1960 | if (prefix_match(oi->address, |
1961 | (struct prefix *)&p)) | |
1962 | ospf_nbr_nbma_add(nbr_nbma, oi); | |
1963 | } | |
718e3744 | 1964 | } |
1965 | ||
d62a17ae | 1966 | struct ospf_nbr_nbma *ospf_nbr_nbma_lookup(struct ospf *ospf, |
1967 | struct in_addr nbr_addr) | |
718e3744 | 1968 | { |
d62a17ae | 1969 | struct route_node *rn; |
1970 | struct prefix_ipv4 p; | |
718e3744 | 1971 | |
d62a17ae | 1972 | p.family = AF_INET; |
1973 | p.prefix = nbr_addr; | |
1974 | p.prefixlen = IPV4_MAX_BITLEN; | |
718e3744 | 1975 | |
d62a17ae | 1976 | rn = route_node_lookup(ospf->nbr_nbma, (struct prefix *)&p); |
1977 | if (rn) { | |
1978 | route_unlock_node(rn); | |
1979 | return rn->info; | |
1980 | } | |
1981 | return NULL; | |
718e3744 | 1982 | } |
1983 | ||
d62a17ae | 1984 | int ospf_nbr_nbma_set(struct ospf *ospf, struct in_addr nbr_addr) |
718e3744 | 1985 | { |
d62a17ae | 1986 | struct ospf_nbr_nbma *nbr_nbma; |
1987 | struct ospf_interface *oi; | |
1988 | struct prefix_ipv4 p; | |
1989 | struct route_node *rn; | |
1990 | struct listnode *node; | |
718e3744 | 1991 | |
d62a17ae | 1992 | nbr_nbma = ospf_nbr_nbma_lookup(ospf, nbr_addr); |
1993 | if (nbr_nbma) | |
1994 | return 0; | |
718e3744 | 1995 | |
d62a17ae | 1996 | nbr_nbma = ospf_nbr_nbma_new(); |
1997 | nbr_nbma->addr = nbr_addr; | |
718e3744 | 1998 | |
d62a17ae | 1999 | p.family = AF_INET; |
2000 | p.prefix = nbr_addr; | |
2001 | p.prefixlen = IPV4_MAX_BITLEN; | |
718e3744 | 2002 | |
d62a17ae | 2003 | rn = route_node_get(ospf->nbr_nbma, (struct prefix *)&p); |
2004 | if (rn->info) | |
2005 | route_unlock_node(rn); | |
2006 | rn->info = nbr_nbma; | |
718e3744 | 2007 | |
d62a17ae | 2008 | for (ALL_LIST_ELEMENTS_RO(ospf->oiflist, node, oi)) { |
2009 | if (oi->type == OSPF_IFTYPE_NBMA) | |
2010 | if (prefix_match(oi->address, (struct prefix *)&p)) { | |
2011 | ospf_nbr_nbma_add(nbr_nbma, oi); | |
2012 | break; | |
2013 | } | |
2014 | } | |
718e3744 | 2015 | |
d62a17ae | 2016 | return 1; |
718e3744 | 2017 | } |
2018 | ||
d62a17ae | 2019 | int ospf_nbr_nbma_unset(struct ospf *ospf, struct in_addr nbr_addr) |
718e3744 | 2020 | { |
d62a17ae | 2021 | struct ospf_nbr_nbma *nbr_nbma; |
718e3744 | 2022 | |
d62a17ae | 2023 | nbr_nbma = ospf_nbr_nbma_lookup(ospf, nbr_addr); |
2024 | if (nbr_nbma == NULL) | |
2025 | return 0; | |
718e3744 | 2026 | |
d62a17ae | 2027 | ospf_nbr_nbma_down(nbr_nbma); |
2028 | ospf_nbr_nbma_delete(ospf, nbr_nbma); | |
718e3744 | 2029 | |
d62a17ae | 2030 | return 1; |
718e3744 | 2031 | } |
2032 | ||
d62a17ae | 2033 | int ospf_nbr_nbma_priority_set(struct ospf *ospf, struct in_addr nbr_addr, |
d7c0a89a | 2034 | uint8_t priority) |
718e3744 | 2035 | { |
d62a17ae | 2036 | struct ospf_nbr_nbma *nbr_nbma; |
718e3744 | 2037 | |
d62a17ae | 2038 | nbr_nbma = ospf_nbr_nbma_lookup(ospf, nbr_addr); |
2039 | if (nbr_nbma == NULL) | |
2040 | return 0; | |
718e3744 | 2041 | |
d62a17ae | 2042 | if (nbr_nbma->priority != priority) |
2043 | nbr_nbma->priority = priority; | |
718e3744 | 2044 | |
d62a17ae | 2045 | return 1; |
718e3744 | 2046 | } |
2047 | ||
d62a17ae | 2048 | int ospf_nbr_nbma_priority_unset(struct ospf *ospf, struct in_addr nbr_addr) |
718e3744 | 2049 | { |
d62a17ae | 2050 | struct ospf_nbr_nbma *nbr_nbma; |
718e3744 | 2051 | |
d62a17ae | 2052 | nbr_nbma = ospf_nbr_nbma_lookup(ospf, nbr_addr); |
2053 | if (nbr_nbma == NULL) | |
2054 | return 0; | |
718e3744 | 2055 | |
d62a17ae | 2056 | if (nbr_nbma != OSPF_NEIGHBOR_PRIORITY_DEFAULT) |
2057 | nbr_nbma->priority = OSPF_NEIGHBOR_PRIORITY_DEFAULT; | |
718e3744 | 2058 | |
d62a17ae | 2059 | return 1; |
718e3744 | 2060 | } |
2061 | ||
d62a17ae | 2062 | int ospf_nbr_nbma_poll_interval_set(struct ospf *ospf, struct in_addr nbr_addr, |
2063 | unsigned int interval) | |
718e3744 | 2064 | { |
d62a17ae | 2065 | struct ospf_nbr_nbma *nbr_nbma; |
718e3744 | 2066 | |
d62a17ae | 2067 | nbr_nbma = ospf_nbr_nbma_lookup(ospf, nbr_addr); |
2068 | if (nbr_nbma == NULL) | |
2069 | return 0; | |
718e3744 | 2070 | |
d62a17ae | 2071 | if (nbr_nbma->v_poll != interval) { |
2072 | nbr_nbma->v_poll = interval; | |
2073 | if (nbr_nbma->oi && ospf_if_is_up(nbr_nbma->oi)) { | |
2074 | OSPF_TIMER_OFF(nbr_nbma->t_poll); | |
2075 | OSPF_POLL_TIMER_ON(nbr_nbma->t_poll, ospf_poll_timer, | |
2076 | nbr_nbma->v_poll); | |
2077 | } | |
718e3744 | 2078 | } |
718e3744 | 2079 | |
d62a17ae | 2080 | return 1; |
718e3744 | 2081 | } |
2082 | ||
d62a17ae | 2083 | int ospf_nbr_nbma_poll_interval_unset(struct ospf *ospf, struct in_addr addr) |
718e3744 | 2084 | { |
d62a17ae | 2085 | struct ospf_nbr_nbma *nbr_nbma; |
718e3744 | 2086 | |
d62a17ae | 2087 | nbr_nbma = ospf_nbr_nbma_lookup(ospf, addr); |
2088 | if (nbr_nbma == NULL) | |
2089 | return 0; | |
718e3744 | 2090 | |
d62a17ae | 2091 | if (nbr_nbma->v_poll != OSPF_POLL_INTERVAL_DEFAULT) |
2092 | nbr_nbma->v_poll = OSPF_POLL_INTERVAL_DEFAULT; | |
718e3744 | 2093 | |
d62a17ae | 2094 | return 1; |
718e3744 | 2095 | } |
2096 | ||
d62a17ae | 2097 | void ospf_master_init(struct thread_master *master) |
718e3744 | 2098 | { |
d62a17ae | 2099 | memset(&ospf_master, 0, sizeof(struct ospf_master)); |
020709f9 | 2100 | |
d62a17ae | 2101 | om = &ospf_master; |
2102 | om->ospf = list_new(); | |
2103 | om->master = master; | |
020709f9 | 2104 | } |
b5a8894d CS |
2105 | |
2106 | /* Link OSPF instance to VRF. */ | |
2107 | void ospf_vrf_link(struct ospf *ospf, struct vrf *vrf) | |
2108 | { | |
2109 | ospf->vrf_id = vrf->vrf_id; | |
2110 | if (vrf->info != (void *)ospf) | |
2111 | vrf->info = (void *)ospf; | |
2112 | } | |
2113 | ||
2114 | /* Unlink OSPF instance from VRF. */ | |
2115 | void ospf_vrf_unlink(struct ospf *ospf, struct vrf *vrf) | |
2116 | { | |
2117 | if (vrf->info == (void *)ospf) | |
2118 | vrf->info = NULL; | |
2119 | ospf->vrf_id = VRF_UNKNOWN; | |
2120 | } | |
2121 | ||
2122 | /* This is hook function for vrf create called as part of vrf_init */ | |
2123 | static int ospf_vrf_new(struct vrf *vrf) | |
2124 | { | |
2125 | if (IS_DEBUG_OSPF_EVENT) | |
15569c58 DA |
2126 | zlog_debug("%s: VRF Created: %s(%u)", __func__, vrf->name, |
2127 | vrf->vrf_id); | |
b5a8894d CS |
2128 | |
2129 | return 0; | |
2130 | } | |
2131 | ||
2132 | /* This is hook function for vrf delete call as part of vrf_init */ | |
2133 | static int ospf_vrf_delete(struct vrf *vrf) | |
2134 | { | |
2135 | if (IS_DEBUG_OSPF_EVENT) | |
15569c58 DA |
2136 | zlog_debug("%s: VRF Deletion: %s(%u)", __func__, vrf->name, |
2137 | vrf->vrf_id); | |
b5a8894d CS |
2138 | |
2139 | return 0; | |
2140 | } | |
2141 | ||
3d9f7302 PZ |
2142 | static void ospf_set_redist_vrf_bitmaps(struct ospf *ospf) |
2143 | { | |
2144 | int type; | |
2145 | struct list *red_list; | |
2146 | ||
2147 | for (type = 0; type < ZEBRA_ROUTE_MAX; type++) { | |
2148 | red_list = ospf->redist[type]; | |
2149 | if (!red_list) | |
2150 | continue; | |
2151 | if (IS_DEBUG_OSPF_EVENT) | |
2152 | zlog_debug( | |
2153 | "%s: setting redist vrf %d bitmap for type %d", | |
2154 | __func__, ospf->vrf_id, type); | |
2155 | vrf_bitmap_set(zclient->redist[AFI_IP][type], ospf->vrf_id); | |
2156 | } | |
2157 | } | |
2158 | ||
b5a8894d CS |
2159 | /* Enable OSPF VRF instance */ |
2160 | static int ospf_vrf_enable(struct vrf *vrf) | |
2161 | { | |
2162 | struct ospf *ospf = NULL; | |
7d206035 | 2163 | vrf_id_t old_vrf_id; |
3c0eb8fa | 2164 | int ret = 0; |
b5a8894d CS |
2165 | |
2166 | if (IS_DEBUG_OSPF_EVENT) | |
5e81f5dd DS |
2167 | zlog_debug("%s: VRF %s id %u enabled", __func__, vrf->name, |
2168 | vrf->vrf_id); | |
b5a8894d CS |
2169 | |
2170 | ospf = ospf_lookup_by_name(vrf->name); | |
2171 | if (ospf) { | |
6895b354 PG |
2172 | if (ospf->name && strmatch(vrf->name, VRF_DEFAULT_NAME)) { |
2173 | XFREE(MTYPE_OSPF_TOP, ospf->name); | |
2174 | ospf->name = NULL; | |
2175 | } | |
b5a8894d CS |
2176 | old_vrf_id = ospf->vrf_id; |
2177 | /* We have instance configured, link to VRF and make it "up". */ | |
2178 | ospf_vrf_link(ospf, vrf); | |
2179 | if (IS_DEBUG_OSPF_EVENT) | |
996c9314 LB |
2180 | zlog_debug( |
2181 | "%s: ospf linked to vrf %s vrf_id %u (old id %u)", | |
5e81f5dd | 2182 | __func__, vrf->name, ospf->vrf_id, old_vrf_id); |
b5a8894d CS |
2183 | |
2184 | if (old_vrf_id != ospf->vrf_id) { | |
0cf6db21 | 2185 | frr_with_privs(&ospfd_privs) { |
6bb30c2c DL |
2186 | /* stop zebra redist to us for old vrf */ |
2187 | zclient_send_dereg_requests(zclient, | |
2188 | old_vrf_id); | |
3d9f7302 | 2189 | |
6bb30c2c | 2190 | ospf_set_redist_vrf_bitmaps(ospf); |
3d9f7302 | 2191 | |
6bb30c2c DL |
2192 | /* start zebra redist to us for new vrf */ |
2193 | ospf_zebra_vrf_register(ospf); | |
313d7993 | 2194 | |
6bb30c2c DL |
2195 | ret = ospf_sock_init(ospf); |
2196 | } | |
3c0eb8fa PG |
2197 | if (ret < 0 || ospf->fd <= 0) |
2198 | return 0; | |
996c9314 LB |
2199 | thread_add_read(master, ospf_read, ospf, ospf->fd, |
2200 | &ospf->t_read); | |
b5a8894d CS |
2201 | ospf->oi_running = 1; |
2202 | ospf_router_id_update(ospf); | |
2203 | } | |
2204 | } | |
2205 | ||
2206 | return 0; | |
2207 | } | |
2208 | ||
2209 | /* Disable OSPF VRF instance */ | |
2210 | static int ospf_vrf_disable(struct vrf *vrf) | |
2211 | { | |
2212 | struct ospf *ospf = NULL; | |
2213 | vrf_id_t old_vrf_id = VRF_UNKNOWN; | |
2214 | ||
2215 | if (vrf->vrf_id == VRF_DEFAULT) | |
2216 | return 0; | |
2217 | ||
2218 | if (IS_DEBUG_OSPF_EVENT) | |
15569c58 DA |
2219 | zlog_debug("%s: VRF %s id %d disabled.", __func__, vrf->name, |
2220 | vrf->vrf_id); | |
b5a8894d CS |
2221 | |
2222 | ospf = ospf_lookup_by_name(vrf->name); | |
2223 | if (ospf) { | |
2224 | old_vrf_id = ospf->vrf_id; | |
2225 | ||
2226 | /* We have instance configured, unlink | |
2227 | * from VRF and make it "down". | |
2228 | */ | |
2229 | ospf_vrf_unlink(ospf, vrf); | |
2230 | ospf->oi_running = 0; | |
2231 | if (IS_DEBUG_OSPF_EVENT) | |
15569c58 DA |
2232 | zlog_debug("%s: ospf old_vrf_id %d unlinked", __func__, |
2233 | old_vrf_id); | |
b3d6bc6e | 2234 | thread_cancel(&ospf->t_read); |
3c0eb8fa PG |
2235 | close(ospf->fd); |
2236 | ospf->fd = -1; | |
b5a8894d CS |
2237 | } |
2238 | ||
2239 | /* Note: This is a callback, the VRF will be deleted by the caller. */ | |
2240 | return 0; | |
2241 | } | |
2242 | ||
2243 | void ospf_vrf_init(void) | |
2244 | { | |
996c9314 | 2245 | vrf_init(ospf_vrf_new, ospf_vrf_enable, ospf_vrf_disable, |
b5c056fa | 2246 | ospf_vrf_delete, ospf_vrf_enable); |
b5a8894d CS |
2247 | } |
2248 | ||
2249 | void ospf_vrf_terminate(void) | |
2250 | { | |
2251 | vrf_terminate(); | |
2252 | } | |
2253 | ||
2254 | const char *ospf_vrf_id_to_name(vrf_id_t vrf_id) | |
2255 | { | |
2256 | struct vrf *vrf = vrf_lookup_by_id(vrf_id); | |
2257 | ||
2258 | return vrf ? vrf->name : "NIL"; | |
2259 | } | |
88b6b28e DS |
2260 | |
2261 | const char *ospf_get_name(const struct ospf *ospf) | |
2262 | { | |
2263 | if (ospf->name) | |
2264 | return ospf->name; | |
2265 | else | |
2266 | return VRF_DEFAULT_NAME; | |
2267 | } |