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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 | |
96244aca | 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 | |
409f98ab IR |
73 | unsigned short ospf_instance; |
74 | ||
718e3744 | 75 | extern struct zclient *zclient; |
76 | ||
6b0655a2 | 77 | |
d62a17ae | 78 | static void ospf_remove_vls_through_area(struct ospf *, struct ospf_area *); |
79 | static void ospf_network_free(struct ospf *, struct ospf_network *); | |
80 | static void ospf_area_free(struct ospf_area *); | |
81 | static void ospf_network_run(struct prefix *, struct ospf_area *); | |
82 | static void ospf_network_run_interface(struct ospf *, struct interface *, | |
83 | struct prefix *, struct ospf_area *); | |
84 | static void ospf_network_run_subnet(struct ospf *, struct connected *, | |
85 | struct prefix *, struct ospf_area *); | |
86 | static int ospf_network_match_iface(const struct connected *, | |
87 | const struct prefix *); | |
88 | static void ospf_finish_final(struct ospf *); | |
718e3744 | 89 | |
718e3744 | 90 | #define OSPF_EXTERNAL_LSA_ORIGINATE_DELAY 1 |
6b0655a2 | 91 | |
7fd0729f G |
92 | int p_spaces_compare_func(const struct p_space *a, const struct p_space *b) |
93 | { | |
385a1e07 G |
94 | if (a->protected_resource->type == OSPF_TI_LFA_LINK_PROTECTION |
95 | && b->protected_resource->type == OSPF_TI_LFA_LINK_PROTECTION) | |
96 | return (a->protected_resource->link->link_id.s_addr | |
97 | - b->protected_resource->link->link_id.s_addr); | |
98 | ||
99 | if (a->protected_resource->type == OSPF_TI_LFA_NODE_PROTECTION | |
100 | && b->protected_resource->type == OSPF_TI_LFA_NODE_PROTECTION) | |
101 | return (a->protected_resource->router_id.s_addr | |
102 | - b->protected_resource->router_id.s_addr); | |
103 | ||
104 | /* This should not happen */ | |
105 | return 0; | |
7fd0729f G |
106 | } |
107 | ||
108 | int q_spaces_compare_func(const struct q_space *a, const struct q_space *b) | |
109 | { | |
110 | return (a->root->id.s_addr - b->root->id.s_addr); | |
111 | } | |
112 | ||
113 | DECLARE_RBTREE_UNIQ(p_spaces, struct p_space, p_spaces_item, | |
960b9a53 | 114 | p_spaces_compare_func); |
7fd0729f | 115 | |
f91ce319 | 116 | void ospf_process_refresh_data(struct ospf *ospf, bool reset) |
718e3744 | 117 | { |
f4e14fdb | 118 | struct vrf *vrf = vrf_lookup_by_id(ospf->vrf_id); |
d62a17ae | 119 | struct in_addr router_id, router_id_old; |
120 | struct ospf_interface *oi; | |
121 | struct interface *ifp; | |
f91ce319 MR |
122 | struct listnode *node, *nnode; |
123 | struct ospf_area *area; | |
124 | bool rid_change = false; | |
2c19a6ec | 125 | |
d62a17ae | 126 | if (!ospf->oi_running) { |
127 | if (IS_DEBUG_OSPF_EVENT) | |
128 | zlog_debug( | |
129 | "Router ospf not configured -- Router-ID update postponed"); | |
130 | return; | |
25a346eb | 131 | } |
718e3744 | 132 | |
d62a17ae | 133 | if (IS_DEBUG_OSPF_EVENT) |
96b663a3 MS |
134 | zlog_debug("Router-ID[OLD:%pI4]: Update", |
135 | &ospf->router_id); | |
d62a17ae | 136 | |
137 | router_id_old = ospf->router_id; | |
138 | ||
139 | /* Select the router ID based on these priorities: | |
140 | 1. Statically assigned router ID is always the first choice. | |
141 | 2. If there is no statically assigned router ID, then try to stick | |
142 | with the most recent value, since changing router ID's is very | |
143 | disruptive. | |
144 | 3. Last choice: just go with whatever the zebra daemon recommends. | |
145 | */ | |
3a6290bd | 146 | if (ospf->router_id_static.s_addr != INADDR_ANY) |
d62a17ae | 147 | router_id = ospf->router_id_static; |
3a6290bd | 148 | else if (ospf->router_id.s_addr != INADDR_ANY) |
d62a17ae | 149 | router_id = ospf->router_id; |
150 | else | |
6021c6c0 | 151 | router_id = ospf->router_id_zebra; |
d62a17ae | 152 | |
b5a8894d | 153 | if (IS_DEBUG_OSPF_EVENT) |
96b663a3 MS |
154 | zlog_debug("Router-ID[OLD:%pI4]: Update to %pI4", |
155 | &ospf->router_id, &router_id); | |
d62a17ae | 156 | |
f91ce319 MR |
157 | rid_change = !(IPV4_ADDR_SAME(&router_id_old, &router_id)); |
158 | if (rid_change || (reset)) { | |
d62a17ae | 159 | for (ALL_LIST_ELEMENTS_RO(ospf->oiflist, node, oi)) { |
160 | /* Some nbrs are identified by router_id, these needs | |
161 | * to be rebuilt. Possible optimization would be to do | |
162 | * oi->nbr_self->router_id = router_id for | |
163 | * !(virtual | ptop) links | |
164 | */ | |
165 | ospf_nbr_self_reset(oi, router_id); | |
7e0274f8 DS |
166 | |
167 | /* | |
168 | * If the old router id was not set, but now it | |
169 | * is and the interface is operative and the | |
170 | * state is ISM_Down we should kick the state | |
171 | * machine as that we processed the interfaces | |
172 | * based upon the network statement( or intf config ) | |
173 | * but could not start it at that time. | |
174 | */ | |
175 | if (if_is_operative(oi->ifp) && oi->state == ISM_Down | |
176 | && router_id_old.s_addr == INADDR_ANY) | |
177 | ospf_if_up(oi); | |
d62a17ae | 178 | } |
179 | ||
f91ce319 MR |
180 | /* Flush (inline) all the self originated LSAs */ |
181 | ospf_flush_self_originated_lsas_now(ospf); | |
d62a17ae | 182 | |
183 | ospf->router_id = router_id; | |
184 | if (IS_DEBUG_OSPF_EVENT) | |
96b663a3 MS |
185 | zlog_debug("Router-ID[NEW:%pI4]: Update", |
186 | &ospf->router_id); | |
d62a17ae | 187 | |
188 | /* Flush (inline) all external LSAs which now match the new | |
189 | router-id, | |
0437e105 | 190 | need to adjust the OSPF_LSA_SELF flag, so the flush doesn't |
d62a17ae | 191 | hit |
192 | asserts in ospf_refresher_unregister_lsa(). This step is | |
193 | needed | |
194 | because the current quagga code does look-up for | |
195 | self-originated LSAs | |
196 | based on the self router-id alone but expects OSPF_LSA_SELF | |
197 | to be | |
198 | properly set */ | |
199 | if (ospf->lsdb) { | |
200 | struct route_node *rn; | |
201 | struct ospf_lsa *lsa; | |
202 | ||
044506e7 | 203 | LSDB_LOOP (EXTERNAL_LSDB(ospf), rn, lsa) { |
d62a17ae | 204 | /* AdvRouter and Router ID is the same. */ |
205 | if (IPV4_ADDR_SAME(&lsa->data->adv_router, | |
f91ce319 | 206 | &ospf->router_id) && rid_change) { |
d62a17ae | 207 | SET_FLAG(lsa->flags, |
208 | OSPF_LSA_SELF_CHECKED); | |
209 | SET_FLAG(lsa->flags, OSPF_LSA_SELF); | |
210 | ospf_lsa_flush_schedule(ospf, lsa); | |
211 | } | |
f91ce319 MR |
212 | /* The above flush will send immediately |
213 | * So discard the LSA to originate new | |
214 | */ | |
215 | ospf_discard_from_db(ospf, ospf->lsdb, lsa); | |
d62a17ae | 216 | } |
f91ce319 MR |
217 | |
218 | LSDB_LOOP (OPAQUE_AS_LSDB(ospf), rn, lsa) | |
219 | ospf_discard_from_db(ospf, ospf->lsdb, lsa); | |
220 | ||
221 | ospf_lsdb_delete_all(ospf->lsdb); | |
d62a17ae | 222 | } |
223 | ||
f91ce319 MR |
224 | /* Delete the LSDB */ |
225 | for (ALL_LIST_ELEMENTS(ospf->areas, node, nnode, area)) | |
226 | ospf_area_lsdb_discard_delete(area); | |
227 | ||
d62a17ae | 228 | /* update router-lsa's for each area */ |
229 | ospf_router_lsa_update(ospf); | |
230 | ||
231 | /* update ospf_interface's */ | |
f91ce319 MR |
232 | FOR_ALL_INTERFACES (vrf, ifp) { |
233 | if (reset) | |
234 | ospf_if_reset(ifp); | |
235 | else | |
236 | ospf_if_update(ospf, ifp); | |
237 | } | |
fa3c7c7e DL |
238 | |
239 | ospf_external_lsa_rid_change(ospf); | |
718e3744 | 240 | } |
f91ce319 MR |
241 | |
242 | ospf->inst_shutdown = 0; | |
243 | } | |
244 | ||
245 | void ospf_router_id_update(struct ospf *ospf) | |
246 | { | |
247 | ospf_process_refresh_data(ospf, false); | |
248 | } | |
249 | ||
250 | void ospf_process_reset(struct ospf *ospf) | |
251 | { | |
252 | ospf_process_refresh_data(ospf, true); | |
253 | } | |
254 | ||
255 | void ospf_neighbor_reset(struct ospf *ospf, struct in_addr nbr_id, | |
256 | const char *nbr_str) | |
257 | { | |
258 | struct route_node *rn; | |
259 | struct ospf_neighbor *nbr; | |
260 | struct ospf_interface *oi; | |
261 | struct listnode *node; | |
262 | ||
263 | /* Clear only a particular nbr with nbr router id as nbr_id */ | |
264 | if (nbr_str != NULL) { | |
265 | for (ALL_LIST_ELEMENTS_RO(ospf->oiflist, node, oi)) { | |
266 | nbr = ospf_nbr_lookup_by_routerid(oi->nbrs, &nbr_id); | |
267 | if (nbr) | |
268 | OSPF_NSM_EVENT_EXECUTE(nbr, NSM_KillNbr); | |
269 | } | |
270 | return; | |
271 | } | |
272 | ||
273 | /* send Neighbor event KillNbr to all associated neighbors. */ | |
274 | for (ALL_LIST_ELEMENTS_RO(ospf->oiflist, node, oi)) { | |
275 | for (rn = route_top(oi->nbrs); rn; rn = route_next(rn)) { | |
276 | nbr = rn->info; | |
277 | if (nbr && (nbr != oi->nbr_self)) | |
278 | OSPF_NSM_EVENT_EXECUTE(nbr, NSM_KillNbr); | |
279 | } | |
280 | } | |
718e3744 | 281 | } |
6b0655a2 | 282 | |
718e3744 | 283 | /* For OSPF area sort by area id. */ |
d62a17ae | 284 | static int ospf_area_id_cmp(struct ospf_area *a1, struct ospf_area *a2) |
718e3744 | 285 | { |
d62a17ae | 286 | if (ntohl(a1->area_id.s_addr) > ntohl(a2->area_id.s_addr)) |
287 | return 1; | |
288 | if (ntohl(a1->area_id.s_addr) < ntohl(a2->area_id.s_addr)) | |
289 | return -1; | |
290 | return 0; | |
718e3744 | 291 | } |
292 | ||
7fd0729f | 293 | struct ospf *ospf_new_alloc(unsigned short instance, const char *name) |
718e3744 | 294 | { |
d62a17ae | 295 | int i; |
b5a8894d | 296 | struct vrf *vrf = NULL; |
718e3744 | 297 | |
d62a17ae | 298 | struct ospf *new = XCALLOC(MTYPE_OSPF_TOP, sizeof(struct ospf)); |
718e3744 | 299 | |
d62a17ae | 300 | new->instance = instance; |
301 | new->router_id.s_addr = htonl(0); | |
302 | new->router_id_static.s_addr = htonl(0); | |
14406e8e DS |
303 | if (name) { |
304 | vrf = vrf_lookup_by_name(name); | |
305 | if (vrf) | |
306 | new->vrf_id = vrf->vrf_id; | |
307 | else | |
308 | new->vrf_id = VRF_UNKNOWN; | |
b5a8894d CS |
309 | /* Freed in ospf_finish_final */ |
310 | new->name = XSTRDUP(MTYPE_OSPF_TOP, name); | |
b5a8894d | 311 | if (IS_DEBUG_OSPF_EVENT) |
996c9314 LB |
312 | zlog_debug( |
313 | "%s: Create new ospf instance with vrf_name %s vrf_id %u", | |
15569c58 | 314 | __func__, name, new->vrf_id); |
b5a8894d CS |
315 | } else { |
316 | new->vrf_id = VRF_DEFAULT; | |
317 | vrf = vrf_lookup_by_id(VRF_DEFAULT); | |
b5a8894d | 318 | } |
a2d7fdfe | 319 | |
320 | if (vrf) | |
321 | ospf_vrf_link(new, vrf); | |
322 | ||
b5a8894d CS |
323 | ospf_zebra_vrf_register(new); |
324 | ||
d62a17ae | 325 | new->abr_type = OSPF_ABR_DEFAULT; |
326 | new->oiflist = list_new(); | |
327 | new->vlinks = list_new(); | |
328 | new->areas = list_new(); | |
329 | new->areas->cmp = (int (*)(void *, void *))ospf_area_id_cmp; | |
330 | new->networks = route_table_init(); | |
331 | new->nbr_nbma = route_table_init(); | |
718e3744 | 332 | |
d62a17ae | 333 | new->lsdb = ospf_lsdb_new(); |
718e3744 | 334 | |
d62a17ae | 335 | new->default_originate = DEFAULT_ORIGINATE_NONE; |
718e3744 | 336 | |
d62a17ae | 337 | new->passive_interface_default = OSPF_IF_ACTIVE; |
4ba4fc85 | 338 | |
d62a17ae | 339 | new->new_external_route = route_table_init(); |
340 | new->old_external_route = route_table_init(); | |
341 | new->external_lsas = route_table_init(); | |
342 | ||
343 | new->stub_router_startup_time = OSPF_STUB_ROUTER_UNCONFIGURED; | |
344 | new->stub_router_shutdown_time = OSPF_STUB_ROUTER_UNCONFIGURED; | |
345 | new->stub_router_admin_set = OSPF_STUB_ROUTER_ADMINISTRATIVE_UNSET; | |
346 | ||
347 | /* Distribute parameter init. */ | |
348 | for (i = 0; i <= ZEBRA_ROUTE_MAX; i++) { | |
349 | new->dtag[i] = 0; | |
350 | } | |
351 | new->default_metric = -1; | |
352 | new->ref_bandwidth = OSPF_DEFAULT_REF_BANDWIDTH; | |
353 | ||
354 | /* LSA timers */ | |
355 | new->min_ls_interval = OSPF_MIN_LS_INTERVAL; | |
356 | new->min_ls_arrival = OSPF_MIN_LS_ARRIVAL; | |
357 | ||
358 | /* SPF timer value init. */ | |
359 | new->spf_delay = OSPF_SPF_DELAY_DEFAULT; | |
360 | new->spf_holdtime = OSPF_SPF_HOLDTIME_DEFAULT; | |
361 | new->spf_max_holdtime = OSPF_SPF_MAX_HOLDTIME_DEFAULT; | |
362 | new->spf_hold_multiplier = 1; | |
363 | ||
364 | /* MaxAge init. */ | |
365 | new->maxage_delay = OSPF_LSA_MAXAGE_REMOVE_DELAY_DEFAULT; | |
366 | new->maxage_lsa = route_table_init(); | |
367 | new->t_maxage_walker = NULL; | |
d62a17ae | 368 | |
369 | /* Distance table init. */ | |
370 | new->distance_table = route_table_init(); | |
371 | ||
372 | new->lsa_refresh_queue.index = 0; | |
373 | new->lsa_refresh_interval = OSPF_LSA_REFRESH_INTERVAL_DEFAULT; | |
374 | new->t_lsa_refresher = NULL; | |
d62a17ae | 375 | new->lsa_refresher_started = monotime(NULL); |
376 | ||
266469eb DS |
377 | new->ibuf = stream_new(OSPF_MAX_PACKET_SIZE + 1); |
378 | ||
d62a17ae | 379 | new->t_read = NULL; |
d62a17ae | 380 | new->oi_write_q = list_new(); |
381 | new->write_oi_count = OSPF_WRITE_INTERFACE_COUNT_DEFAULT; | |
382 | ||
a92706bb JU |
383 | new->proactive_arp = OSPF_PROACTIVE_ARP_DEFAULT; |
384 | ||
06bc3110 | 385 | ospf_gr_helper_init(new); |
386 | ||
ad7222b7 | 387 | ospf_asbr_external_aggregator_init(new); |
388 | ||
d62a17ae | 389 | QOBJ_REG(new, ospf); |
ae19c240 | 390 | |
3c0eb8fa | 391 | new->fd = -1; |
7fd0729f G |
392 | |
393 | return new; | |
394 | } | |
395 | ||
396 | /* Allocate new ospf structure. */ | |
397 | static struct ospf *ospf_new(unsigned short instance, const char *name) | |
398 | { | |
399 | struct ospf *new; | |
400 | ||
401 | new = ospf_new_alloc(instance, name); | |
402 | ||
3c0eb8fa PG |
403 | if ((ospf_sock_init(new)) < 0) { |
404 | if (new->vrf_id != VRF_UNKNOWN) | |
ade6974d | 405 | flog_err( |
450971aa | 406 | EC_LIB_SOCKET, |
ade6974d QY |
407 | "%s: ospf_sock_init is unable to open a socket", |
408 | __func__); | |
3c0eb8fa PG |
409 | return new; |
410 | } | |
7fd0729f G |
411 | |
412 | thread_add_timer(master, ospf_lsa_maxage_walker, new, | |
413 | OSPF_LSA_MAXAGE_CHECK_INTERVAL, &new->t_maxage_walker); | |
414 | thread_add_timer(master, ospf_lsa_refresh_walker, new, | |
415 | new->lsa_refresh_interval, &new->t_lsa_refresher); | |
416 | ||
3c0eb8fa PG |
417 | thread_add_read(master, ospf_read, new, new->fd, &new->t_read); |
418 | ||
d62a17ae | 419 | return new; |
718e3744 | 420 | } |
421 | ||
d7c0a89a | 422 | struct ospf *ospf_lookup_instance(unsigned short instance) |
7c8ff89e | 423 | { |
d62a17ae | 424 | struct ospf *ospf; |
425 | struct listnode *node, *nnode; | |
7c8ff89e | 426 | |
d62a17ae | 427 | if (listcount(om->ospf) == 0) |
428 | return NULL; | |
7c8ff89e | 429 | |
d62a17ae | 430 | for (ALL_LIST_ELEMENTS(om->ospf, node, nnode, ospf)) |
431 | if ((ospf->instance == 0 && instance == 0) | |
432 | || (ospf->instance && instance | |
433 | && ospf->instance == instance)) | |
434 | return ospf; | |
7c8ff89e | 435 | |
d62a17ae | 436 | return NULL; |
7c8ff89e DS |
437 | } |
438 | ||
d62a17ae | 439 | static int ospf_is_ready(struct ospf *ospf) |
52c62ab8 | 440 | { |
d62a17ae | 441 | /* OSPF must be on and Router-ID must be configured. */ |
975a328e | 442 | if (!ospf || ospf->router_id.s_addr == INADDR_ANY) |
d62a17ae | 443 | return 0; |
444 | ||
445 | return 1; | |
52c62ab8 JAG |
446 | } |
447 | ||
d62a17ae | 448 | static void ospf_add(struct ospf *ospf) |
020709f9 | 449 | { |
d62a17ae | 450 | listnode_add(om->ospf, ospf); |
020709f9 | 451 | } |
718e3744 | 452 | |
d62a17ae | 453 | static void ospf_delete(struct ospf *ospf) |
020709f9 | 454 | { |
d62a17ae | 455 | listnode_delete(om->ospf, ospf); |
020709f9 | 456 | } |
68980084 | 457 | |
d7c0a89a | 458 | struct ospf *ospf_lookup_by_inst_name(unsigned short instance, const char *name) |
b5a8894d CS |
459 | { |
460 | struct ospf *ospf = NULL; | |
461 | struct listnode *node, *nnode; | |
462 | ||
6895b354 PG |
463 | if (name == NULL || strmatch(name, VRF_DEFAULT_NAME)) |
464 | return ospf_lookup_by_vrf_id(VRF_DEFAULT); | |
465 | ||
b5a8894d | 466 | for (ALL_LIST_ELEMENTS(om->ospf, node, nnode, ospf)) { |
996c9314 LB |
467 | if ((ospf->instance == instance) |
468 | && ((ospf->name == NULL && name == NULL) | |
469 | || (ospf->name && name | |
470 | && strcmp(ospf->name, name) == 0))) | |
b5a8894d CS |
471 | return ospf; |
472 | } | |
473 | return NULL; | |
474 | } | |
475 | ||
c3391da1 | 476 | static void ospf_init(struct ospf *ospf) |
020709f9 | 477 | { |
0549eeda IR |
478 | struct vrf *vrf; |
479 | struct interface *ifp; | |
020709f9 | 480 | |
c3391da1 IR |
481 | ospf_opaque_type11_lsa_init(ospf); |
482 | ||
483 | if (ospf->vrf_id != VRF_UNKNOWN) | |
484 | ospf->oi_running = 1; | |
485 | ||
486 | /* Activate 'ip ospf area x' configured interfaces for given | |
487 | * vrf. Activate area on vrf x aware interfaces. | |
488 | * vrf_enable callback calls router_id_update which | |
489 | * internally will call ospf_if_update to trigger | |
490 | * network_run_state | |
491 | */ | |
492 | vrf = vrf_lookup_by_id(ospf->vrf_id); | |
493 | ||
494 | FOR_ALL_INTERFACES (vrf, ifp) { | |
495 | struct ospf_if_params *params; | |
496 | struct route_node *rn; | |
497 | uint32_t count = 0; | |
498 | ||
499 | params = IF_DEF_PARAMS(ifp); | |
500 | if (OSPF_IF_PARAM_CONFIGURED(params, if_area)) | |
501 | count++; | |
502 | ||
503 | for (rn = route_top(IF_OIFS_PARAMS(ifp)); rn; rn = route_next(rn)) | |
504 | if ((params = rn->info) && OSPF_IF_PARAM_CONFIGURED(params, if_area)) | |
505 | count++; | |
506 | ||
507 | if (count > 0) { | |
508 | ospf_interface_area_set(ospf, ifp); | |
509 | ospf->if_ospf_cli_count += count; | |
510 | } | |
511 | } | |
512 | ||
513 | ospf_router_id_update(ospf); | |
514 | } | |
515 | ||
409f98ab | 516 | struct ospf *ospf_lookup(unsigned short instance, const char *name) |
c3391da1 IR |
517 | { |
518 | struct ospf *ospf; | |
519 | ||
409f98ab IR |
520 | if (ospf_instance) { |
521 | ospf = ospf_lookup_instance(instance); | |
522 | } else { | |
b5a8894d | 523 | ospf = ospf_lookup_by_inst_name(instance, name); |
d62a17ae | 524 | } |
7c8ff89e | 525 | |
d62a17ae | 526 | return ospf; |
7c8ff89e DS |
527 | } |
528 | ||
409f98ab | 529 | struct ospf *ospf_get(unsigned short instance, const char *name, bool *created) |
7c8ff89e | 530 | { |
d62a17ae | 531 | struct ospf *ospf; |
7c8ff89e | 532 | |
409f98ab IR |
533 | ospf = ospf_lookup(instance, name); |
534 | ||
c572fbfe | 535 | *created = (ospf == NULL); |
d62a17ae | 536 | if (ospf == NULL) { |
409f98ab | 537 | ospf = ospf_new(instance, name); |
d62a17ae | 538 | ospf_add(ospf); |
020709f9 | 539 | |
c3391da1 | 540 | ospf_init(ospf); |
d62a17ae | 541 | } |
68980084 | 542 | |
d62a17ae | 543 | return ospf; |
718e3744 | 544 | } |
6b0655a2 | 545 | |
b5a8894d CS |
546 | struct ospf *ospf_lookup_by_vrf_id(vrf_id_t vrf_id) |
547 | { | |
548 | struct vrf *vrf = NULL; | |
549 | ||
550 | vrf = vrf_lookup_by_id(vrf_id); | |
551 | if (!vrf) | |
552 | return NULL; | |
553 | return (vrf->info) ? (struct ospf *)vrf->info : NULL; | |
b5a8894d CS |
554 | } |
555 | ||
43b8d1d8 CS |
556 | /* It should only be used when processing incoming info update from zebra. |
557 | * Other situations, it is not sufficient to lookup the ospf instance by | |
558 | * vrf_name only without using the instance number. | |
559 | */ | |
560 | static struct ospf *ospf_lookup_by_name(const char *vrf_name) | |
b5a8894d CS |
561 | { |
562 | struct ospf *ospf = NULL; | |
563 | struct listnode *node, *nnode; | |
564 | ||
565 | for (ALL_LIST_ELEMENTS(om->ospf, node, nnode, ospf)) | |
43b8d1d8 | 566 | if ((ospf->name == NULL && vrf_name == NULL) |
996c9314 LB |
567 | || (ospf->name && vrf_name |
568 | && strcmp(ospf->name, vrf_name) == 0)) | |
b5a8894d CS |
569 | return ospf; |
570 | return NULL; | |
571 | } | |
572 | ||
c9c93d50 | 573 | /* Handle the second half of deferred shutdown. This is called either |
574 | * from the deferred-shutdown timer thread, or directly through | |
575 | * ospf_deferred_shutdown_check. | |
88d6cf37 | 576 | * |
577 | * Function is to cleanup G-R state, if required then call ospf_finish_final | |
578 | * to complete shutdown of this ospf instance. Possibly exit if the | |
579 | * whole process is being shutdown and this was the last OSPF instance. | |
580 | */ | |
d62a17ae | 581 | static void ospf_deferred_shutdown_finish(struct ospf *ospf) |
582 | { | |
583 | ospf->stub_router_shutdown_time = OSPF_STUB_ROUTER_UNCONFIGURED; | |
584 | OSPF_TIMER_OFF(ospf->t_deferred_shutdown); | |
585 | ||
586 | ospf_finish_final(ospf); | |
587 | ||
588 | /* *ospf is now invalid */ | |
88d6cf37 | 589 | |
d62a17ae | 590 | /* ospfd being shut-down? If so, was this the last ospf instance? */ |
591 | if (CHECK_FLAG(om->options, OSPF_MASTER_SHUTDOWN) | |
592 | && (listcount(om->ospf) == 0)) { | |
593 | exit(0); | |
594 | } | |
595 | ||
596 | return; | |
88d6cf37 | 597 | } |
598 | ||
599 | /* Timer thread for G-R */ | |
d62a17ae | 600 | static int ospf_deferred_shutdown_timer(struct thread *t) |
88d6cf37 | 601 | { |
d62a17ae | 602 | struct ospf *ospf = THREAD_ARG(t); |
603 | ||
604 | ospf_deferred_shutdown_finish(ospf); | |
605 | ||
606 | return 0; | |
88d6cf37 | 607 | } |
608 | ||
c9c93d50 | 609 | /* Check whether deferred-shutdown must be scheduled, otherwise call |
88d6cf37 | 610 | * down directly into second-half of instance shutdown. |
611 | */ | |
d62a17ae | 612 | static void ospf_deferred_shutdown_check(struct ospf *ospf) |
613 | { | |
614 | unsigned long timeout; | |
615 | struct listnode *ln; | |
616 | struct ospf_area *area; | |
617 | ||
618 | /* deferred shutdown already running? */ | |
619 | if (ospf->t_deferred_shutdown) | |
620 | return; | |
621 | ||
622 | /* Should we try push out max-metric LSAs? */ | |
623 | if (ospf->stub_router_shutdown_time != OSPF_STUB_ROUTER_UNCONFIGURED) { | |
624 | for (ALL_LIST_ELEMENTS_RO(ospf->areas, ln, area)) { | |
625 | SET_FLAG(area->stub_router_state, | |
626 | OSPF_AREA_ADMIN_STUB_ROUTED); | |
627 | ||
628 | if (!CHECK_FLAG(area->stub_router_state, | |
629 | OSPF_AREA_IS_STUB_ROUTED)) | |
630 | ospf_router_lsa_update_area(area); | |
631 | } | |
632 | timeout = ospf->stub_router_shutdown_time; | |
633 | } else { | |
634 | /* No timer needed */ | |
635 | ospf_deferred_shutdown_finish(ospf); | |
636 | return; | |
637 | } | |
638 | ||
639 | OSPF_TIMER_ON(ospf->t_deferred_shutdown, ospf_deferred_shutdown_timer, | |
640 | timeout); | |
641 | return; | |
88d6cf37 | 642 | } |
6b0655a2 | 643 | |
88d6cf37 | 644 | /* Shut down the entire process */ |
d62a17ae | 645 | void ospf_terminate(void) |
646 | { | |
647 | struct ospf *ospf; | |
648 | struct listnode *node, *nnode; | |
649 | ||
650 | /* shutdown already in progress */ | |
651 | if (CHECK_FLAG(om->options, OSPF_MASTER_SHUTDOWN)) | |
652 | return; | |
653 | ||
654 | SET_FLAG(om->options, OSPF_MASTER_SHUTDOWN); | |
655 | ||
41b21bfa | 656 | /* Skip some steps if OSPF not actually running */ |
d62a17ae | 657 | if (listcount(om->ospf) == 0) |
41b21bfa | 658 | goto done; |
d62a17ae | 659 | |
660 | bfd_gbl_exit(); | |
661 | for (ALL_LIST_ELEMENTS(om->ospf, node, nnode, ospf)) | |
662 | ospf_finish(ospf); | |
663 | ||
ded42248 | 664 | /* Cleanup route maps */ |
ded42248 CS |
665 | route_map_finish(); |
666 | ||
667 | /* reverse prefix_list_init */ | |
668 | prefix_list_add_hook(NULL); | |
669 | prefix_list_delete_hook(NULL); | |
670 | prefix_list_reset(); | |
671 | ||
672 | /* Cleanup vrf info */ | |
673 | ospf_vrf_terminate(); | |
674 | ||
d62a17ae | 675 | /* Deliberately go back up, hopefully to thread scheduler, as |
676 | * One or more ospf_finish()'s may have deferred shutdown to a timer | |
677 | * thread | |
678 | */ | |
679 | zclient_stop(zclient); | |
680 | zclient_free(zclient); | |
8879bd22 | 681 | |
41b21bfa | 682 | done: |
8879bd22 | 683 | frr_fini(); |
d62a17ae | 684 | } |
685 | ||
686 | void ospf_finish(struct ospf *ospf) | |
687 | { | |
688 | /* let deferred shutdown decide */ | |
689 | ospf_deferred_shutdown_check(ospf); | |
690 | ||
691 | /* if ospf_deferred_shutdown returns, then ospf_finish_final is | |
692 | * deferred to expiry of G-S timer thread. Return back up, hopefully | |
693 | * to thread scheduler. | |
694 | */ | |
695 | return; | |
88d6cf37 | 696 | } |
697 | ||
698 | /* Final cleanup of ospf instance */ | |
d62a17ae | 699 | static void ospf_finish_final(struct ospf *ospf) |
718e3744 | 700 | { |
41616883 | 701 | struct vrf *vrf; |
d62a17ae | 702 | struct route_node *rn; |
703 | struct ospf_nbr_nbma *nbr_nbma; | |
704 | struct ospf_lsa *lsa; | |
d62a17ae | 705 | struct ospf_interface *oi; |
706 | struct ospf_area *area; | |
707 | struct ospf_vl_data *vl_data; | |
708 | struct listnode *node, *nnode; | |
709 | int i; | |
7c8ff89e | 710 | |
d62a17ae | 711 | QOBJ_UNREG(ospf); |
7c8ff89e | 712 | |
d62a17ae | 713 | ospf_opaque_type11_lsa_term(ospf); |
953cde65 | 714 | |
bcf4475e OD |
715 | ospf_opaque_finish(); |
716 | ||
046460a1 | 717 | ospf_flush_self_originated_lsas_now(ospf); |
953cde65 | 718 | |
d62a17ae | 719 | /* Unregister redistribution */ |
720 | for (i = 0; i < ZEBRA_ROUTE_MAX; i++) { | |
721 | struct list *red_list; | |
722 | struct ospf_redist *red; | |
718e3744 | 723 | |
d62a17ae | 724 | red_list = ospf->redist[i]; |
725 | if (!red_list) | |
726 | continue; | |
718e3744 | 727 | |
1d753551 | 728 | for (ALL_LIST_ELEMENTS(red_list, node, nnode, red)) { |
d62a17ae | 729 | ospf_redistribute_unset(ospf, i, red->instance); |
1d753551 DS |
730 | ospf_redist_del(ospf, i, red->instance); |
731 | } | |
d62a17ae | 732 | } |
d5eac1e0 | 733 | ospf_redistribute_default_set(ospf, DEFAULT_ORIGINATE_NONE, 0, 0); |
718e3744 | 734 | |
d62a17ae | 735 | for (ALL_LIST_ELEMENTS(ospf->areas, node, nnode, area)) |
736 | ospf_remove_vls_through_area(ospf, area); | |
718e3744 | 737 | |
d62a17ae | 738 | for (ALL_LIST_ELEMENTS(ospf->vlinks, node, nnode, vl_data)) |
739 | ospf_vl_delete(ospf, vl_data); | |
718e3744 | 740 | |
6a154c88 | 741 | list_delete(&ospf->vlinks); |
718e3744 | 742 | |
132a782e | 743 | /* shutdown LDP-Sync */ |
744 | if (ospf->vrf_id == VRF_DEFAULT) | |
745 | ospf_ldp_sync_gbl_exit(ospf, true); | |
746 | ||
d62a17ae | 747 | /* Reset interface. */ |
748 | for (ALL_LIST_ELEMENTS(ospf->oiflist, node, nnode, oi)) | |
749 | ospf_if_free(oi); | |
6a154c88 | 750 | list_delete(&ospf->oiflist); |
c32eba04 | 751 | ospf->oi_running = 0; |
718e3744 | 752 | |
b5a8894d CS |
753 | /* De-Register VRF */ |
754 | ospf_zebra_vrf_deregister(ospf); | |
755 | ||
d62a17ae | 756 | /* Clear static neighbors */ |
757 | for (rn = route_top(ospf->nbr_nbma); rn; rn = route_next(rn)) | |
758 | if ((nbr_nbma = rn->info)) { | |
759 | OSPF_POLL_TIMER_OFF(nbr_nbma->t_poll); | |
718e3744 | 760 | |
d62a17ae | 761 | if (nbr_nbma->nbr) { |
762 | nbr_nbma->nbr->nbr_nbma = NULL; | |
763 | nbr_nbma->nbr = NULL; | |
764 | } | |
765 | ||
766 | if (nbr_nbma->oi) { | |
767 | listnode_delete(nbr_nbma->oi->nbr_nbma, | |
768 | nbr_nbma); | |
769 | nbr_nbma->oi = NULL; | |
770 | } | |
771 | ||
772 | XFREE(MTYPE_OSPF_NEIGHBOR_STATIC, nbr_nbma); | |
773 | } | |
774 | ||
775 | route_table_finish(ospf->nbr_nbma); | |
776 | ||
777 | /* Clear networks and Areas. */ | |
778 | for (rn = route_top(ospf->networks); rn; rn = route_next(rn)) { | |
779 | struct ospf_network *network; | |
780 | ||
781 | if ((network = rn->info) != NULL) { | |
782 | ospf_network_free(ospf, network); | |
783 | rn->info = NULL; | |
784 | route_unlock_node(rn); | |
785 | } | |
91e6a0e5 | 786 | } |
7f586094 | 787 | route_table_finish(ospf->networks); |
718e3744 | 788 | |
d62a17ae | 789 | for (ALL_LIST_ELEMENTS(ospf->areas, node, nnode, area)) { |
790 | listnode_delete(ospf->areas, area); | |
791 | ospf_area_free(area); | |
792 | } | |
718e3744 | 793 | |
d62a17ae | 794 | /* Cancel all timers. */ |
c32eba04 CS |
795 | OSPF_TIMER_OFF(ospf->t_read); |
796 | OSPF_TIMER_OFF(ospf->t_write); | |
d62a17ae | 797 | OSPF_TIMER_OFF(ospf->t_spf_calc); |
798 | OSPF_TIMER_OFF(ospf->t_ase_calc); | |
799 | OSPF_TIMER_OFF(ospf->t_maxage); | |
800 | OSPF_TIMER_OFF(ospf->t_maxage_walker); | |
801 | OSPF_TIMER_OFF(ospf->t_abr_task); | |
802 | OSPF_TIMER_OFF(ospf->t_asbr_check); | |
803 | OSPF_TIMER_OFF(ospf->t_distribute_update); | |
804 | OSPF_TIMER_OFF(ospf->t_lsa_refresher); | |
d62a17ae | 805 | OSPF_TIMER_OFF(ospf->t_opaque_lsa_self); |
45a43856 | 806 | OSPF_TIMER_OFF(ospf->t_sr_update); |
1febb13d | 807 | OSPF_TIMER_OFF(ospf->t_default_routemap_timer); |
ad7222b7 | 808 | OSPF_TIMER_OFF(ospf->t_external_aggr); |
d62a17ae | 809 | |
996c9314 | 810 | LSDB_LOOP (OPAQUE_AS_LSDB(ospf), rn, lsa) |
044506e7 | 811 | ospf_discard_from_db(ospf, ospf->lsdb, lsa); |
996c9314 | 812 | LSDB_LOOP (EXTERNAL_LSDB(ospf), rn, lsa) |
044506e7 | 813 | ospf_discard_from_db(ospf, ospf->lsdb, lsa); |
d62a17ae | 814 | |
815 | ospf_lsdb_delete_all(ospf->lsdb); | |
816 | ospf_lsdb_free(ospf->lsdb); | |
817 | ||
818 | for (rn = route_top(ospf->maxage_lsa); rn; rn = route_next(rn)) { | |
d62a17ae | 819 | if ((lsa = rn->info) != NULL) { |
820 | ospf_lsa_unlock(&lsa); | |
821 | rn->info = NULL; | |
822 | } | |
823 | route_unlock_node(rn); | |
824 | } | |
825 | route_table_finish(ospf->maxage_lsa); | |
826 | ||
827 | if (ospf->old_table) | |
828 | ospf_route_table_free(ospf->old_table); | |
829 | if (ospf->new_table) { | |
b5a8894d | 830 | ospf_route_delete(ospf, ospf->new_table); |
d62a17ae | 831 | ospf_route_table_free(ospf->new_table); |
832 | } | |
833 | if (ospf->old_rtrs) | |
834 | ospf_rtrs_free(ospf->old_rtrs); | |
835 | if (ospf->new_rtrs) | |
836 | ospf_rtrs_free(ospf->new_rtrs); | |
837 | if (ospf->new_external_route) { | |
b5a8894d | 838 | ospf_route_delete(ospf, ospf->new_external_route); |
d62a17ae | 839 | ospf_route_table_free(ospf->new_external_route); |
840 | } | |
841 | if (ospf->old_external_route) { | |
b5a8894d | 842 | ospf_route_delete(ospf, ospf->old_external_route); |
d62a17ae | 843 | ospf_route_table_free(ospf->old_external_route); |
844 | } | |
845 | if (ospf->external_lsas) { | |
846 | ospf_ase_external_lsas_finish(ospf->external_lsas); | |
847 | } | |
718e3744 | 848 | |
d62a17ae | 849 | for (i = ZEBRA_ROUTE_SYSTEM; i <= ZEBRA_ROUTE_MAX; i++) { |
850 | struct list *ext_list; | |
d62a17ae | 851 | struct ospf_external *ext; |
852 | ||
de1ac5fd | 853 | ext_list = ospf->external[i]; |
d62a17ae | 854 | if (!ext_list) |
855 | continue; | |
856 | ||
76fdc7f4 | 857 | for (ALL_LIST_ELEMENTS(ext_list, node, nnode, ext)) { |
d62a17ae | 858 | if (ext->external_info) |
859 | for (rn = route_top(ext->external_info); rn; | |
860 | rn = route_next(rn)) { | |
861 | if (rn->info == NULL) | |
862 | continue; | |
863 | ||
864 | XFREE(MTYPE_OSPF_EXTERNAL_INFO, | |
865 | rn->info); | |
866 | rn->info = NULL; | |
867 | route_unlock_node(rn); | |
868 | } | |
1d753551 DS |
869 | |
870 | ospf_external_del(ospf, i, ext->instance); | |
d62a17ae | 871 | } |
872 | } | |
718e3744 | 873 | |
d62a17ae | 874 | ospf_distance_reset(ospf); |
875 | route_table_finish(ospf->distance_table); | |
7c8ff89e | 876 | |
ad7222b7 | 877 | /* Release extrenal Aggregator table */ |
878 | for (rn = route_top(ospf->rt_aggr_tbl); rn; rn = route_next(rn)) { | |
879 | struct ospf_external_aggr_rt *aggr; | |
880 | ||
881 | aggr = rn->info; | |
882 | ||
883 | if (aggr) { | |
884 | ospf_external_aggregator_free(aggr); | |
885 | rn->info = NULL; | |
886 | route_unlock_node(rn); | |
887 | } | |
888 | } | |
889 | ||
890 | route_table_finish(ospf->rt_aggr_tbl); | |
891 | ||
892 | ||
c32eba04 CS |
893 | list_delete(&ospf->areas); |
894 | list_delete(&ospf->oi_write_q); | |
895 | ||
06bc3110 | 896 | /* Reset GR helper data structers */ |
897 | ospf_gr_helper_stop(ospf); | |
898 | ||
c32eba04 CS |
899 | close(ospf->fd); |
900 | stream_free(ospf->ibuf); | |
901 | ospf->fd = -1; | |
d62a17ae | 902 | ospf_delete(ospf); |
7c8ff89e | 903 | |
b5a8894d CS |
904 | if (ospf->name) { |
905 | vrf = vrf_lookup_by_name(ospf->name); | |
906 | if (vrf) | |
907 | ospf_vrf_unlink(ospf, vrf); | |
908 | XFREE(MTYPE_OSPF_TOP, ospf->name); | |
909 | } else { | |
910 | vrf = vrf_lookup_by_id(VRF_DEFAULT); | |
911 | if (vrf) | |
912 | ospf_vrf_unlink(ospf, vrf); | |
913 | } | |
914 | ||
d62a17ae | 915 | XFREE(MTYPE_OSPF_TOP, ospf); |
718e3744 | 916 | } |
917 | ||
6b0655a2 | 918 | |
718e3744 | 919 | /* allocate new OSPF Area object */ |
7fd0729f | 920 | struct ospf_area *ospf_area_new(struct ospf *ospf, struct in_addr area_id) |
718e3744 | 921 | { |
d62a17ae | 922 | struct ospf_area *new; |
718e3744 | 923 | |
d62a17ae | 924 | /* Allocate new config_network. */ |
925 | new = XCALLOC(MTYPE_OSPF_AREA, sizeof(struct ospf_area)); | |
718e3744 | 926 | |
d62a17ae | 927 | new->ospf = ospf; |
718e3744 | 928 | |
d62a17ae | 929 | new->area_id = area_id; |
930 | new->area_id_fmt = OSPF_AREA_ID_FMT_DOTTEDQUAD; | |
718e3744 | 931 | |
d62a17ae | 932 | new->external_routing = OSPF_AREA_DEFAULT; |
933 | new->default_cost = 1; | |
934 | new->auth_type = OSPF_AUTH_NULL; | |
718e3744 | 935 | |
d62a17ae | 936 | /* New LSDB init. */ |
937 | new->lsdb = ospf_lsdb_new(); | |
718e3744 | 938 | |
d62a17ae | 939 | /* Self-originated LSAs initialize. */ |
940 | new->router_lsa_self = NULL; | |
718e3744 | 941 | |
d62a17ae | 942 | ospf_opaque_type10_lsa_init(new); |
718e3744 | 943 | |
d62a17ae | 944 | new->oiflist = list_new(); |
945 | new->ranges = route_table_init(); | |
718e3744 | 946 | |
d62a17ae | 947 | if (area_id.s_addr == OSPF_AREA_BACKBONE) |
948 | ospf->backbone = new; | |
949 | ||
950 | return new; | |
718e3744 | 951 | } |
952 | ||
f91ce319 | 953 | void ospf_area_lsdb_discard_delete(struct ospf_area *area) |
718e3744 | 954 | { |
d62a17ae | 955 | struct route_node *rn; |
956 | struct ospf_lsa *lsa; | |
957 | ||
996c9314 | 958 | LSDB_LOOP (ROUTER_LSDB(area), rn, lsa) |
044506e7 | 959 | ospf_discard_from_db(area->ospf, area->lsdb, lsa); |
996c9314 | 960 | LSDB_LOOP (NETWORK_LSDB(area), rn, lsa) |
044506e7 | 961 | ospf_discard_from_db(area->ospf, area->lsdb, lsa); |
996c9314 | 962 | LSDB_LOOP (SUMMARY_LSDB(area), rn, lsa) |
044506e7 | 963 | ospf_discard_from_db(area->ospf, area->lsdb, lsa); |
996c9314 | 964 | LSDB_LOOP (ASBR_SUMMARY_LSDB(area), rn, lsa) |
044506e7 | 965 | ospf_discard_from_db(area->ospf, area->lsdb, lsa); |
68980084 | 966 | |
996c9314 | 967 | LSDB_LOOP (NSSA_LSDB(area), rn, lsa) |
044506e7 | 968 | ospf_discard_from_db(area->ospf, area->lsdb, lsa); |
996c9314 | 969 | LSDB_LOOP (OPAQUE_AREA_LSDB(area), rn, lsa) |
044506e7 | 970 | ospf_discard_from_db(area->ospf, area->lsdb, lsa); |
996c9314 | 971 | LSDB_LOOP (OPAQUE_LINK_LSDB(area), rn, lsa) |
044506e7 | 972 | ospf_discard_from_db(area->ospf, area->lsdb, lsa); |
718e3744 | 973 | |
d62a17ae | 974 | ospf_lsdb_delete_all(area->lsdb); |
f91ce319 MR |
975 | } |
976 | ||
977 | static void ospf_area_free(struct ospf_area *area) | |
978 | { | |
979 | ospf_opaque_type10_lsa_term(area); | |
980 | ||
981 | /* Free LSDBs. */ | |
982 | ospf_area_lsdb_discard_delete(area); | |
983 | ||
d62a17ae | 984 | ospf_lsdb_free(area->lsdb); |
718e3744 | 985 | |
d62a17ae | 986 | ospf_lsa_unlock(&area->router_lsa_self); |
718e3744 | 987 | |
d62a17ae | 988 | route_table_finish(area->ranges); |
6a154c88 | 989 | list_delete(&area->oiflist); |
718e3744 | 990 | |
d62a17ae | 991 | if (EXPORT_NAME(area)) |
992 | free(EXPORT_NAME(area)); | |
718e3744 | 993 | |
d62a17ae | 994 | if (IMPORT_NAME(area)) |
995 | free(IMPORT_NAME(area)); | |
718e3744 | 996 | |
d62a17ae | 997 | /* Cancel timer. */ |
998 | OSPF_TIMER_OFF(area->t_stub_router); | |
999 | OSPF_TIMER_OFF(area->t_opaque_lsa_self); | |
718e3744 | 1000 | |
d62a17ae | 1001 | if (OSPF_IS_AREA_BACKBONE(area)) |
1002 | area->ospf->backbone = NULL; | |
1003 | ||
1004 | XFREE(MTYPE_OSPF_AREA, area); | |
718e3744 | 1005 | } |
1006 | ||
d62a17ae | 1007 | void ospf_area_check_free(struct ospf *ospf, struct in_addr area_id) |
718e3744 | 1008 | { |
d62a17ae | 1009 | struct ospf_area *area; |
718e3744 | 1010 | |
d62a17ae | 1011 | area = ospf_area_lookup_by_area_id(ospf, area_id); |
1012 | if (area && listcount(area->oiflist) == 0 && area->ranges->top == NULL | |
19ce7d5e | 1013 | && !ospf_vl_count(ospf, area) |
d62a17ae | 1014 | && area->shortcut_configured == OSPF_SHORTCUT_DEFAULT |
1015 | && area->external_routing == OSPF_AREA_DEFAULT | |
1016 | && area->no_summary == 0 && area->default_cost == 1 | |
1017 | && EXPORT_NAME(area) == NULL && IMPORT_NAME(area) == NULL | |
1018 | && area->auth_type == OSPF_AUTH_NULL) { | |
1019 | listnode_delete(ospf->areas, area); | |
1020 | ospf_area_free(area); | |
1021 | } | |
718e3744 | 1022 | } |
1023 | ||
d62a17ae | 1024 | struct ospf_area *ospf_area_get(struct ospf *ospf, struct in_addr area_id) |
718e3744 | 1025 | { |
d62a17ae | 1026 | struct ospf_area *area; |
1027 | ||
1028 | area = ospf_area_lookup_by_area_id(ospf, area_id); | |
1029 | if (!area) { | |
1030 | area = ospf_area_new(ospf, area_id); | |
1031 | listnode_add_sort(ospf->areas, area); | |
1032 | ospf_check_abr_status(ospf); | |
1033 | if (ospf->stub_router_admin_set | |
1034 | == OSPF_STUB_ROUTER_ADMINISTRATIVE_SET) { | |
1035 | SET_FLAG(area->stub_router_state, | |
1036 | OSPF_AREA_ADMIN_STUB_ROUTED); | |
1037 | } | |
1038 | } | |
718e3744 | 1039 | |
d62a17ae | 1040 | return area; |
718e3744 | 1041 | } |
1042 | ||
d62a17ae | 1043 | struct ospf_area *ospf_area_lookup_by_area_id(struct ospf *ospf, |
1044 | struct in_addr area_id) | |
718e3744 | 1045 | { |
d62a17ae | 1046 | struct ospf_area *area; |
1047 | struct listnode *node; | |
718e3744 | 1048 | |
d62a17ae | 1049 | for (ALL_LIST_ELEMENTS_RO(ospf->areas, node, area)) |
1050 | if (IPV4_ADDR_SAME(&area->area_id, &area_id)) | |
1051 | return area; | |
718e3744 | 1052 | |
d62a17ae | 1053 | return NULL; |
718e3744 | 1054 | } |
1055 | ||
d62a17ae | 1056 | void ospf_area_add_if(struct ospf_area *area, struct ospf_interface *oi) |
718e3744 | 1057 | { |
d62a17ae | 1058 | listnode_add(area->oiflist, oi); |
718e3744 | 1059 | } |
1060 | ||
d62a17ae | 1061 | void ospf_area_del_if(struct ospf_area *area, struct ospf_interface *oi) |
718e3744 | 1062 | { |
d62a17ae | 1063 | listnode_delete(area->oiflist, oi); |
718e3744 | 1064 | } |
1065 | ||
52c62ab8 | 1066 | |
7fd0729f G |
1067 | struct ospf_interface *add_ospf_interface(struct connected *co, |
1068 | struct ospf_area *area) | |
953cde65 | 1069 | { |
d62a17ae | 1070 | struct ospf_interface *oi; |
953cde65 | 1071 | |
d62a17ae | 1072 | oi = ospf_if_new(area->ospf, co->ifp, co->address); |
1073 | oi->connected = co; | |
953cde65 | 1074 | |
d62a17ae | 1075 | oi->area = area; |
953cde65 | 1076 | |
d62a17ae | 1077 | oi->params = ospf_lookup_if_params(co->ifp, oi->address->u.prefix4); |
1078 | oi->output_cost = ospf_if_get_output_cost(oi); | |
953cde65 | 1079 | |
d62a17ae | 1080 | /* Relate ospf interface to ospf instance. */ |
1081 | oi->ospf = area->ospf; | |
953cde65 | 1082 | |
d62a17ae | 1083 | /* update network type as interface flag */ |
1084 | /* If network type is specified previously, | |
1085 | skip network type setting. */ | |
1086 | oi->type = IF_DEF_PARAMS(co->ifp)->type; | |
953cde65 | 1087 | |
d62a17ae | 1088 | /* Add pseudo neighbor. */ |
1089 | ospf_nbr_self_reset(oi, oi->ospf->router_id); | |
953cde65 | 1090 | |
d62a17ae | 1091 | ospf_area_add_if(oi->area, oi); |
52c62ab8 | 1092 | |
132a782e | 1093 | /* if LDP-IGP Sync is configured globally inherit config */ |
1094 | ospf_ldp_sync_if_init(oi); | |
1095 | ||
d62a17ae | 1096 | /* |
1097 | * if router_id is not configured, dont bring up | |
1098 | * interfaces. | |
1099 | * ospf_router_id_update() will call ospf_if_update | |
1100 | * whenever r-id is configured instead. | |
1101 | */ | |
975a328e DA |
1102 | if ((area->ospf->router_id.s_addr != INADDR_ANY) |
1103 | && if_is_operative(co->ifp)) | |
d62a17ae | 1104 | ospf_if_up(oi); |
7fd0729f G |
1105 | |
1106 | return oi; | |
953cde65 JT |
1107 | } |
1108 | ||
1109 | static void update_redistributed(struct ospf *ospf, int add_to_ospf) | |
1110 | { | |
d62a17ae | 1111 | struct route_node *rn; |
1112 | struct external_info *ei; | |
1113 | struct ospf_external *ext; | |
1114 | ||
de1ac5fd CS |
1115 | if (ospf_is_type_redistributed(ospf, ZEBRA_ROUTE_CONNECT, 0)) { |
1116 | ext = ospf_external_lookup(ospf, ZEBRA_ROUTE_CONNECT, 0); | |
1117 | if ((ext) && EXTERNAL_INFO(ext)) { | |
d62a17ae | 1118 | for (rn = route_top(EXTERNAL_INFO(ext)); rn; |
1119 | rn = route_next(rn)) { | |
de1ac5fd CS |
1120 | ei = rn->info; |
1121 | if (ei == NULL) | |
1122 | continue; | |
1123 | ||
1124 | if (add_to_ospf) { | |
996c9314 LB |
1125 | if (ospf_external_info_find_lsa(ospf, |
1126 | &ei->p)) | |
de1ac5fd CS |
1127 | if (!ospf_distribute_check_connected( |
1128 | ospf, ei)) | |
1129 | ospf_external_lsa_flush( | |
996c9314 | 1130 | ospf, ei->type, |
de1ac5fd CS |
1131 | &ei->p, |
1132 | ei->ifindex /*, ei->nexthop */); | |
1133 | } else { | |
1134 | if (!ospf_external_info_find_lsa( | |
1135 | ospf, &ei->p)) | |
1136 | if (ospf_distribute_check_connected( | |
1137 | ospf, ei)) | |
1138 | ospf_external_lsa_originate( | |
996c9314 | 1139 | ospf, ei); |
d62a17ae | 1140 | } |
1141 | } | |
1142 | } | |
de1ac5fd | 1143 | } |
953cde65 JT |
1144 | } |
1145 | ||
718e3744 | 1146 | /* Config network statement related functions. */ |
d62a17ae | 1147 | static struct ospf_network *ospf_network_new(struct in_addr area_id) |
718e3744 | 1148 | { |
d62a17ae | 1149 | struct ospf_network *new; |
1150 | new = XCALLOC(MTYPE_OSPF_NETWORK, sizeof(struct ospf_network)); | |
718e3744 | 1151 | |
d62a17ae | 1152 | new->area_id = area_id; |
1153 | new->area_id_fmt = OSPF_AREA_ID_FMT_DOTTEDQUAD; | |
1154 | ||
1155 | return new; | |
718e3744 | 1156 | } |
1157 | ||
d62a17ae | 1158 | static void ospf_network_free(struct ospf *ospf, struct ospf_network *network) |
718e3744 | 1159 | { |
d62a17ae | 1160 | ospf_area_check_free(ospf, network->area_id); |
1161 | ospf_schedule_abr_task(ospf); | |
1162 | XFREE(MTYPE_OSPF_NETWORK, network); | |
718e3744 | 1163 | } |
1164 | ||
d62a17ae | 1165 | int ospf_network_set(struct ospf *ospf, struct prefix_ipv4 *p, |
1166 | struct in_addr area_id, int df) | |
718e3744 | 1167 | { |
d62a17ae | 1168 | struct ospf_network *network; |
1169 | struct ospf_area *area; | |
1170 | struct route_node *rn; | |
718e3744 | 1171 | |
d62a17ae | 1172 | rn = route_node_get(ospf->networks, (struct prefix *)p); |
1173 | if (rn->info) { | |
2b0a905a | 1174 | network = rn->info; |
d62a17ae | 1175 | route_unlock_node(rn); |
2b0a905a DW |
1176 | |
1177 | if (IPV4_ADDR_SAME(&area_id, &network->area_id)) { | |
1178 | return 1; | |
1179 | } else { | |
1180 | /* There is already same network statement. */ | |
1181 | return 0; | |
1182 | } | |
d62a17ae | 1183 | } |
718e3744 | 1184 | |
d62a17ae | 1185 | rn->info = network = ospf_network_new(area_id); |
1186 | network->area_id_fmt = df; | |
1187 | area = ospf_area_get(ospf, area_id); | |
1188 | ospf_area_display_format_set(ospf, area, df); | |
718e3744 | 1189 | |
d62a17ae | 1190 | /* Run network config now. */ |
1191 | ospf_network_run((struct prefix *)p, area); | |
718e3744 | 1192 | |
d62a17ae | 1193 | /* Update connected redistribute. */ |
1194 | update_redistributed(ospf, 1); /* interfaces possibly added */ | |
718e3744 | 1195 | |
d62a17ae | 1196 | ospf_area_check_free(ospf, area_id); |
718e3744 | 1197 | |
d62a17ae | 1198 | return 1; |
718e3744 | 1199 | } |
1200 | ||
d62a17ae | 1201 | int ospf_network_unset(struct ospf *ospf, struct prefix_ipv4 *p, |
1202 | struct in_addr area_id) | |
718e3744 | 1203 | { |
d62a17ae | 1204 | struct route_node *rn; |
1205 | struct ospf_network *network; | |
1206 | struct listnode *node, *nnode; | |
1207 | struct ospf_interface *oi; | |
718e3744 | 1208 | |
d62a17ae | 1209 | rn = route_node_lookup(ospf->networks, (struct prefix *)p); |
1210 | if (rn == NULL) | |
1211 | return 0; | |
718e3744 | 1212 | |
d62a17ae | 1213 | network = rn->info; |
1214 | route_unlock_node(rn); | |
1215 | if (!IPV4_ADDR_SAME(&area_id, &network->area_id)) | |
1216 | return 0; | |
718e3744 | 1217 | |
d62a17ae | 1218 | ospf_network_free(ospf, rn->info); |
1219 | rn->info = NULL; | |
1220 | route_unlock_node(rn); /* initial reference */ | |
718e3744 | 1221 | |
30c0daa4 | 1222 | /* Find interfaces that are not configured already. */ |
d62a17ae | 1223 | for (ALL_LIST_ELEMENTS(ospf->oiflist, node, nnode, oi)) { |
30c0daa4 | 1224 | |
996c9314 LB |
1225 | if (oi->type == OSPF_IFTYPE_VIRTUALLINK) |
1226 | continue; | |
30c0daa4 | 1227 | |
996c9314 | 1228 | ospf_network_run_subnet(ospf, oi->connected, NULL, NULL); |
d62a17ae | 1229 | } |
953cde65 | 1230 | |
d62a17ae | 1231 | /* Update connected redistribute. */ |
1232 | update_redistributed(ospf, 0); /* interfaces possibly removed */ | |
1233 | ospf_area_check_free(ospf, area_id); | |
1234 | ||
1235 | return 1; | |
953cde65 JT |
1236 | } |
1237 | ||
52c62ab8 JAG |
1238 | /* Ensure there's an OSPF instance, as "ip ospf area" enabled OSPF means |
1239 | * there might not be any 'router ospf' config. | |
1240 | * | |
1241 | * Otherwise, doesn't do anything different to ospf_if_update for now | |
1242 | */ | |
b5a8894d | 1243 | void ospf_interface_area_set(struct ospf *ospf, struct interface *ifp) |
953cde65 | 1244 | { |
b5a8894d CS |
1245 | if (!ospf) |
1246 | return; | |
d62a17ae | 1247 | |
1248 | ospf_if_update(ospf, ifp); | |
1249 | /* if_update does a update_redistributed */ | |
1250 | ||
1251 | return; | |
953cde65 JT |
1252 | } |
1253 | ||
b5a8894d | 1254 | void ospf_interface_area_unset(struct ospf *ospf, struct interface *ifp) |
953cde65 | 1255 | { |
d62a17ae | 1256 | struct route_node *rn_oi; |
953cde65 | 1257 | |
d62a17ae | 1258 | if (!ospf) |
1259 | return; /* Ospf not ready yet */ | |
953cde65 | 1260 | |
d62a17ae | 1261 | /* Find interfaces that may need to be removed. */ |
1262 | for (rn_oi = route_top(IF_OIFS(ifp)); rn_oi; | |
1263 | rn_oi = route_next(rn_oi)) { | |
b5a8894d | 1264 | struct ospf_interface *oi = NULL; |
d62a17ae | 1265 | |
1266 | if ((oi = rn_oi->info) == NULL) | |
1267 | continue; | |
1268 | ||
1269 | if (oi->type == OSPF_IFTYPE_VIRTUALLINK) | |
1270 | continue; | |
1271 | ||
1272 | ospf_network_run_subnet(ospf, oi->connected, NULL, NULL); | |
1273 | } | |
953cde65 | 1274 | |
d62a17ae | 1275 | /* Update connected redistribute. */ |
1276 | update_redistributed(ospf, 0); /* interfaces possibly removed */ | |
718e3744 | 1277 | } |
1278 | ||
570f7598 | 1279 | /* Check whether interface matches given network |
1280 | * returns: 1, true. 0, false | |
1281 | */ | |
d62a17ae | 1282 | static int ospf_network_match_iface(const struct connected *co, |
1283 | const struct prefix *net) | |
570f7598 | 1284 | { |
d62a17ae | 1285 | /* new approach: more elegant and conceptually clean */ |
1286 | return prefix_match_network_statement(net, CONNECTED_PREFIX(co)); | |
570f7598 | 1287 | } |
1288 | ||
d62a17ae | 1289 | static void ospf_update_interface_area(struct connected *co, |
1290 | struct ospf_area *area) | |
52c62ab8 | 1291 | { |
d62a17ae | 1292 | struct ospf_interface *oi = ospf_if_table_lookup(co->ifp, co->address); |
1293 | ||
1294 | /* nothing to be done case */ | |
1295 | if (oi && oi->area == area) { | |
1296 | return; | |
1297 | } | |
1298 | ||
1299 | if (oi) | |
1300 | ospf_if_free(oi); | |
1301 | ||
1302 | add_ospf_interface(co, area); | |
52c62ab8 JAG |
1303 | } |
1304 | ||
1305 | /* Run OSPF for the given subnet, taking into account the following | |
1306 | * possible sources of area configuration, in the given order of preference: | |
1307 | * | |
1308 | * - Whether there is interface+address specific area configuration | |
1309 | * - Whether there is a default area for the interface | |
1310 | * - Whether there is an area given as a parameter. | |
1311 | * - If no specific network prefix/area is supplied, whether there's | |
1312 | * a matching network configured. | |
1313 | */ | |
d62a17ae | 1314 | static void ospf_network_run_subnet(struct ospf *ospf, struct connected *co, |
1315 | struct prefix *p, | |
1316 | struct ospf_area *given_area) | |
1317 | { | |
1318 | struct ospf_interface *oi; | |
1319 | struct ospf_if_params *params; | |
1320 | struct ospf_area *area = NULL; | |
1321 | struct route_node *rn; | |
1322 | int configed = 0; | |
1323 | ||
1324 | if (CHECK_FLAG(co->flags, ZEBRA_IFA_SECONDARY)) | |
1325 | return; | |
1326 | ||
1327 | if (co->address->family != AF_INET) | |
1328 | return; | |
1329 | ||
1330 | /* Try determine the appropriate area for this interface + address | |
1331 | * Start by checking interface config | |
1332 | */ | |
1333 | params = ospf_lookup_if_params(co->ifp, co->address->u.prefix4); | |
1334 | if (params && OSPF_IF_PARAM_CONFIGURED(params, if_area)) | |
1335 | area = ospf_area_get(ospf, params->if_area); | |
1336 | else { | |
1337 | params = IF_DEF_PARAMS(co->ifp); | |
1338 | if (OSPF_IF_PARAM_CONFIGURED(params, if_area)) | |
1339 | area = ospf_area_get(ospf, params->if_area); | |
1340 | } | |
52c62ab8 | 1341 | |
d62a17ae | 1342 | /* If we've found an interface and/or addr specific area, then we're |
1343 | * done | |
1344 | */ | |
1345 | if (area) { | |
1346 | ospf_update_interface_area(co, area); | |
1347 | return; | |
1348 | } | |
718e3744 | 1349 | |
d62a17ae | 1350 | /* Otherwise, only remaining possibility is a matching network statement |
1351 | */ | |
1352 | if (p) { | |
1353 | assert(given_area != NULL); | |
1354 | ||
1355 | /* Which either was supplied as a parameter.. (e.g. cause a new | |
1356 | * network/area was just added).. | |
1357 | */ | |
1358 | if (p->family == co->address->family | |
1359 | && ospf_network_match_iface(co, p)) | |
1360 | ospf_update_interface_area(co, given_area); | |
1361 | ||
1362 | return; | |
1363 | } | |
1364 | ||
1365 | /* Else we have to search the existing network/area config to see | |
1366 | * if any match.. | |
1367 | */ | |
1368 | for (rn = route_top(ospf->networks); rn; rn = route_next(rn)) | |
1369 | if (rn->info != NULL && ospf_network_match_iface(co, &rn->p)) { | |
1370 | struct ospf_network *network = | |
1371 | (struct ospf_network *)rn->info; | |
1372 | area = ospf_area_get(ospf, network->area_id); | |
1373 | ospf_update_interface_area(co, area); | |
1374 | configed = 1; | |
1375 | } | |
1376 | ||
1377 | /* If the subnet isn't in any area, deconfigure */ | |
1378 | if (!configed && (oi = ospf_if_table_lookup(co->ifp, co->address))) | |
1379 | ospf_if_free(oi); | |
718e3744 | 1380 | } |
1381 | ||
d62a17ae | 1382 | static void ospf_network_run_interface(struct ospf *ospf, struct interface *ifp, |
1383 | struct prefix *p, | |
1384 | struct ospf_area *given_area) | |
718e3744 | 1385 | { |
d62a17ae | 1386 | struct listnode *cnode; |
1387 | struct connected *co; | |
1388 | ||
1389 | if (memcmp(ifp->name, "VLINK", 5) == 0) | |
1390 | return; | |
718e3744 | 1391 | |
d62a17ae | 1392 | /* Network prefix without area is nonsensical */ |
1393 | if (p) | |
1394 | assert(given_area != NULL); | |
1395 | ||
1396 | /* if interface prefix is match specified prefix, | |
1397 | then create socket and join multicast group. */ | |
1398 | for (ALL_LIST_ELEMENTS_RO(ifp->connected, cnode, co)) | |
1399 | ospf_network_run_subnet(ospf, co, p, given_area); | |
718e3744 | 1400 | } |
1401 | ||
d62a17ae | 1402 | static void ospf_network_run(struct prefix *p, struct ospf_area *area) |
718e3744 | 1403 | { |
f4e14fdb | 1404 | struct vrf *vrf = vrf_lookup_by_id(area->ospf->vrf_id); |
d62a17ae | 1405 | struct interface *ifp; |
d62a17ae | 1406 | |
1407 | /* Schedule Router ID Update. */ | |
975a328e | 1408 | if (area->ospf->router_id.s_addr == INADDR_ANY) |
d62a17ae | 1409 | ospf_router_id_update(area->ospf); |
718e3744 | 1410 | |
d62a17ae | 1411 | /* Get target interface. */ |
451fda4f | 1412 | FOR_ALL_INTERFACES (vrf, ifp) |
d62a17ae | 1413 | ospf_network_run_interface(area->ospf, ifp, p, area); |
718e3744 | 1414 | } |
1415 | ||
d62a17ae | 1416 | void ospf_ls_upd_queue_empty(struct ospf_interface *oi) |
1417 | { | |
1418 | struct route_node *rn; | |
1419 | struct listnode *node, *nnode; | |
1420 | struct list *lst; | |
1421 | struct ospf_lsa *lsa; | |
1422 | ||
1423 | /* empty ls update queue */ | |
1424 | for (rn = route_top(oi->ls_upd_queue); rn; rn = route_next(rn)) | |
1425 | if ((lst = (struct list *)rn->info)) { | |
1426 | for (ALL_LIST_ELEMENTS(lst, node, nnode, lsa)) | |
1427 | ospf_lsa_unlock(&lsa); /* oi->ls_upd_queue */ | |
6a154c88 | 1428 | list_delete(&lst); |
d62a17ae | 1429 | rn->info = NULL; |
1430 | } | |
1431 | ||
1432 | /* remove update event */ | |
b3d6bc6e | 1433 | thread_cancel(&oi->t_ls_upd_event); |
d62a17ae | 1434 | } |
6b0655a2 | 1435 | |
d62a17ae | 1436 | void ospf_if_update(struct ospf *ospf, struct interface *ifp) |
718e3744 | 1437 | { |
43b8d1d8 | 1438 | |
d62a17ae | 1439 | if (!ospf) |
43b8d1d8 | 1440 | return; |
b5a8894d CS |
1441 | |
1442 | if (IS_DEBUG_OSPF_EVENT) | |
996c9314 | 1443 | zlog_debug( |
96b663a3 | 1444 | "%s: interface %s ifp->vrf_id %u ospf vrf %s vrf_id %u router_id %pI4", |
15569c58 | 1445 | __func__, ifp->name, ifp->vrf_id, |
996c9314 | 1446 | ospf_vrf_id_to_name(ospf->vrf_id), ospf->vrf_id, |
96b663a3 | 1447 | &ospf->router_id); |
d62a17ae | 1448 | |
1449 | /* OSPF must be ready. */ | |
1450 | if (!ospf_is_ready(ospf)) | |
1451 | return; | |
1452 | ||
1453 | ospf_network_run_interface(ospf, ifp, NULL, NULL); | |
1454 | ||
1455 | /* Update connected redistribute. */ | |
1456 | update_redistributed(ospf, 1); | |
ef7bd2a3 | 1457 | |
d62a17ae | 1458 | } |
718e3744 | 1459 | |
d62a17ae | 1460 | void ospf_remove_vls_through_area(struct ospf *ospf, struct ospf_area *area) |
718e3744 | 1461 | { |
d62a17ae | 1462 | struct listnode *node, *nnode; |
1463 | struct ospf_vl_data *vl_data; | |
718e3744 | 1464 | |
d62a17ae | 1465 | for (ALL_LIST_ELEMENTS(ospf->vlinks, node, nnode, vl_data)) |
1466 | if (IPV4_ADDR_SAME(&vl_data->vl_area_id, &area->area_id)) | |
1467 | ospf_vl_delete(ospf, vl_data); | |
1468 | } | |
718e3744 | 1469 | |
718e3744 | 1470 | |
d62a17ae | 1471 | static const struct message ospf_area_type_msg[] = { |
1472 | {OSPF_AREA_DEFAULT, "Default"}, | |
1473 | {OSPF_AREA_STUB, "Stub"}, | |
1474 | {OSPF_AREA_NSSA, "NSSA"}, | |
1475 | {0}}; | |
718e3744 | 1476 | |
d62a17ae | 1477 | static void ospf_area_type_set(struct ospf_area *area, int type) |
1478 | { | |
1479 | struct listnode *node; | |
1480 | struct ospf_interface *oi; | |
1481 | ||
1482 | if (area->external_routing == type) { | |
1483 | if (IS_DEBUG_OSPF_EVENT) | |
96b663a3 MS |
1484 | zlog_debug("Area[%pI4]: Types are the same, ignored.", |
1485 | &area->area_id); | |
d62a17ae | 1486 | return; |
1487 | } | |
718e3744 | 1488 | |
d62a17ae | 1489 | area->external_routing = type; |
1490 | ||
1491 | if (IS_DEBUG_OSPF_EVENT) | |
96b663a3 MS |
1492 | zlog_debug("Area[%pI4]: Configured as %s", |
1493 | &area->area_id, | |
d62a17ae | 1494 | lookup_msg(ospf_area_type_msg, type, NULL)); |
1495 | ||
1496 | switch (area->external_routing) { | |
1497 | case OSPF_AREA_DEFAULT: | |
1498 | for (ALL_LIST_ELEMENTS_RO(area->oiflist, node, oi)) | |
1499 | if (oi->nbr_self != NULL) { | |
1500 | UNSET_FLAG(oi->nbr_self->options, | |
1501 | OSPF_OPTION_NP); | |
1502 | SET_FLAG(oi->nbr_self->options, OSPF_OPTION_E); | |
1503 | } | |
1504 | break; | |
1505 | case OSPF_AREA_STUB: | |
1506 | for (ALL_LIST_ELEMENTS_RO(area->oiflist, node, oi)) | |
1507 | if (oi->nbr_self != NULL) { | |
1508 | if (IS_DEBUG_OSPF_EVENT) | |
1509 | zlog_debug( | |
1510 | "setting options on %s accordingly", | |
1511 | IF_NAME(oi)); | |
1512 | UNSET_FLAG(oi->nbr_self->options, | |
1513 | OSPF_OPTION_NP); | |
1514 | UNSET_FLAG(oi->nbr_self->options, | |
1515 | OSPF_OPTION_E); | |
1516 | if (IS_DEBUG_OSPF_EVENT) | |
1517 | zlog_debug("options set on %s: %x", | |
1518 | IF_NAME(oi), OPTIONS(oi)); | |
1519 | } | |
1520 | break; | |
1521 | case OSPF_AREA_NSSA: | |
1522 | for (ALL_LIST_ELEMENTS_RO(area->oiflist, node, oi)) | |
1523 | if (oi->nbr_self != NULL) { | |
1524 | zlog_debug( | |
1525 | "setting nssa options on %s accordingly", | |
1526 | IF_NAME(oi)); | |
1527 | UNSET_FLAG(oi->nbr_self->options, | |
1528 | OSPF_OPTION_E); | |
1529 | SET_FLAG(oi->nbr_self->options, OSPF_OPTION_NP); | |
1530 | zlog_debug("options set on %s: %x", IF_NAME(oi), | |
1531 | OPTIONS(oi)); | |
1532 | } | |
1533 | break; | |
1534 | default: | |
1535 | break; | |
1536 | } | |
1537 | ||
1538 | ospf_router_lsa_update_area(area); | |
1539 | ospf_schedule_abr_task(area->ospf); | |
718e3744 | 1540 | } |
1541 | ||
d62a17ae | 1542 | int ospf_area_shortcut_set(struct ospf *ospf, struct ospf_area *area, int mode) |
718e3744 | 1543 | { |
d62a17ae | 1544 | if (area->shortcut_configured == mode) |
1545 | return 0; | |
718e3744 | 1546 | |
d62a17ae | 1547 | area->shortcut_configured = mode; |
1548 | ospf_router_lsa_update_area(area); | |
1549 | ospf_schedule_abr_task(ospf); | |
718e3744 | 1550 | |
d62a17ae | 1551 | ospf_area_check_free(ospf, area->area_id); |
718e3744 | 1552 | |
d62a17ae | 1553 | return 1; |
718e3744 | 1554 | } |
1555 | ||
d62a17ae | 1556 | int ospf_area_shortcut_unset(struct ospf *ospf, struct ospf_area *area) |
718e3744 | 1557 | { |
d62a17ae | 1558 | area->shortcut_configured = OSPF_SHORTCUT_DEFAULT; |
1559 | ospf_router_lsa_update_area(area); | |
1560 | ospf_area_check_free(ospf, area->area_id); | |
1561 | ospf_schedule_abr_task(ospf); | |
718e3744 | 1562 | |
d62a17ae | 1563 | return 1; |
718e3744 | 1564 | } |
1565 | ||
d62a17ae | 1566 | static int ospf_area_vlink_count(struct ospf *ospf, struct ospf_area *area) |
718e3744 | 1567 | { |
d62a17ae | 1568 | struct ospf_vl_data *vl; |
1569 | struct listnode *node; | |
1570 | int count = 0; | |
718e3744 | 1571 | |
d62a17ae | 1572 | for (ALL_LIST_ELEMENTS_RO(ospf->vlinks, node, vl)) |
1573 | if (IPV4_ADDR_SAME(&vl->vl_area_id, &area->area_id)) | |
1574 | count++; | |
718e3744 | 1575 | |
d62a17ae | 1576 | return count; |
718e3744 | 1577 | } |
1578 | ||
d62a17ae | 1579 | int ospf_area_display_format_set(struct ospf *ospf, struct ospf_area *area, |
1580 | int df) | |
86573dcb | 1581 | { |
d62a17ae | 1582 | area->area_id_fmt = df; |
86573dcb | 1583 | |
d62a17ae | 1584 | return 1; |
86573dcb QY |
1585 | } |
1586 | ||
d62a17ae | 1587 | int ospf_area_stub_set(struct ospf *ospf, struct in_addr area_id) |
718e3744 | 1588 | { |
d62a17ae | 1589 | struct ospf_area *area; |
718e3744 | 1590 | |
d62a17ae | 1591 | area = ospf_area_get(ospf, area_id); |
1592 | if (ospf_area_vlink_count(ospf, area)) | |
1593 | return 0; | |
718e3744 | 1594 | |
d62a17ae | 1595 | if (area->external_routing != OSPF_AREA_STUB) |
1596 | ospf_area_type_set(area, OSPF_AREA_STUB); | |
718e3744 | 1597 | |
d62a17ae | 1598 | return 1; |
718e3744 | 1599 | } |
1600 | ||
d62a17ae | 1601 | int ospf_area_stub_unset(struct ospf *ospf, struct in_addr area_id) |
718e3744 | 1602 | { |
d62a17ae | 1603 | struct ospf_area *area; |
718e3744 | 1604 | |
d62a17ae | 1605 | area = ospf_area_lookup_by_area_id(ospf, area_id); |
1606 | if (area == NULL) | |
1607 | return 1; | |
718e3744 | 1608 | |
d62a17ae | 1609 | if (area->external_routing == OSPF_AREA_STUB) |
1610 | ospf_area_type_set(area, OSPF_AREA_DEFAULT); | |
718e3744 | 1611 | |
d62a17ae | 1612 | ospf_area_check_free(ospf, area_id); |
718e3744 | 1613 | |
d62a17ae | 1614 | return 1; |
718e3744 | 1615 | } |
1616 | ||
d62a17ae | 1617 | int ospf_area_no_summary_set(struct ospf *ospf, struct in_addr area_id) |
718e3744 | 1618 | { |
d62a17ae | 1619 | struct ospf_area *area; |
718e3744 | 1620 | |
d62a17ae | 1621 | area = ospf_area_get(ospf, area_id); |
1622 | area->no_summary = 1; | |
718e3744 | 1623 | |
d62a17ae | 1624 | return 1; |
718e3744 | 1625 | } |
1626 | ||
d62a17ae | 1627 | int ospf_area_no_summary_unset(struct ospf *ospf, struct in_addr area_id) |
718e3744 | 1628 | { |
d62a17ae | 1629 | struct ospf_area *area; |
718e3744 | 1630 | |
d62a17ae | 1631 | area = ospf_area_lookup_by_area_id(ospf, area_id); |
1632 | if (area == NULL) | |
1633 | return 0; | |
718e3744 | 1634 | |
d62a17ae | 1635 | area->no_summary = 0; |
1636 | ospf_area_check_free(ospf, area_id); | |
718e3744 | 1637 | |
d62a17ae | 1638 | return 1; |
718e3744 | 1639 | } |
1640 | ||
7ef56a73 | 1641 | int ospf_area_nssa_no_summary_set(struct ospf *ospf, struct in_addr area_id) |
718e3744 | 1642 | { |
d62a17ae | 1643 | struct ospf_area *area; |
718e3744 | 1644 | |
d62a17ae | 1645 | area = ospf_area_get(ospf, area_id); |
1646 | if (ospf_area_vlink_count(ospf, area)) | |
1647 | return 0; | |
718e3744 | 1648 | |
d62a17ae | 1649 | if (area->external_routing != OSPF_AREA_NSSA) { |
1650 | ospf_area_type_set(area, OSPF_AREA_NSSA); | |
1651 | ospf->anyNSSA++; | |
7ef56a73 | 1652 | area->NSSATranslatorRole = OSPF_NSSA_ROLE_CANDIDATE; |
d62a17ae | 1653 | } |
718e3744 | 1654 | |
7ef56a73 | 1655 | ospf_area_no_summary_set(ospf, area_id); |
084c7844 | 1656 | |
d62a17ae | 1657 | return 1; |
718e3744 | 1658 | } |
1659 | ||
7ef56a73 CS |
1660 | int ospf_area_nssa_set(struct ospf *ospf, struct in_addr area_id) |
1661 | { | |
1662 | struct ospf_area *area; | |
1663 | ||
1664 | area = ospf_area_get(ospf, area_id); | |
1665 | if (ospf_area_vlink_count(ospf, area)) | |
1666 | return 0; | |
1667 | ||
1668 | if (area->external_routing != OSPF_AREA_NSSA) { | |
1669 | ospf_area_type_set(area, OSPF_AREA_NSSA); | |
1670 | ospf->anyNSSA++; | |
1671 | ||
1672 | /* set NSSA area defaults */ | |
1673 | area->no_summary = 0; | |
1674 | area->NSSATranslatorRole = OSPF_NSSA_ROLE_CANDIDATE; | |
1675 | area->NSSATranslatorState = OSPF_NSSA_TRANSLATE_DISABLED; | |
1676 | area->NSSATranslatorStabilityInterval = | |
1677 | OSPF_NSSA_TRANS_STABLE_DEFAULT; | |
1678 | } | |
1679 | return 1; | |
1680 | } | |
1681 | ||
1682 | int ospf_area_nssa_unset(struct ospf *ospf, struct in_addr area_id, int argc) | |
718e3744 | 1683 | { |
d62a17ae | 1684 | struct ospf_area *area; |
718e3744 | 1685 | |
d62a17ae | 1686 | area = ospf_area_lookup_by_area_id(ospf, area_id); |
1687 | if (area == NULL) | |
1688 | return 0; | |
718e3744 | 1689 | |
7ef56a73 CS |
1690 | /* argc < 5 -> 'no area x nssa' */ |
1691 | if (argc < 5 && area->external_routing == OSPF_AREA_NSSA) { | |
d62a17ae | 1692 | ospf->anyNSSA--; |
7ef56a73 CS |
1693 | /* set NSSA area defaults */ |
1694 | area->no_summary = 0; | |
1695 | area->NSSATranslatorRole = OSPF_NSSA_ROLE_CANDIDATE; | |
1696 | area->NSSATranslatorState = OSPF_NSSA_TRANSLATE_DISABLED; | |
1697 | area->NSSATranslatorStabilityInterval = | |
1698 | OSPF_NSSA_TRANS_STABLE_DEFAULT; | |
d62a17ae | 1699 | ospf_area_type_set(area, OSPF_AREA_DEFAULT); |
7ef56a73 | 1700 | } else { |
a987fe6b | 1701 | ospf_area_nssa_translator_role_set(ospf, area_id, |
1702 | OSPF_NSSA_ROLE_CANDIDATE); | |
d62a17ae | 1703 | } |
718e3744 | 1704 | |
d62a17ae | 1705 | ospf_area_check_free(ospf, area_id); |
718e3744 | 1706 | |
d62a17ae | 1707 | return 1; |
718e3744 | 1708 | } |
1709 | ||
d62a17ae | 1710 | int ospf_area_nssa_translator_role_set(struct ospf *ospf, |
1711 | struct in_addr area_id, int role) | |
718e3744 | 1712 | { |
d62a17ae | 1713 | struct ospf_area *area; |
718e3744 | 1714 | |
d62a17ae | 1715 | area = ospf_area_lookup_by_area_id(ospf, area_id); |
1716 | if (area == NULL) | |
1717 | return 0; | |
718e3744 | 1718 | |
a987fe6b | 1719 | if (role != area->NSSATranslatorRole) { |
1720 | if ((area->NSSATranslatorRole == OSPF_NSSA_ROLE_ALWAYS) | |
1721 | || (role == OSPF_NSSA_ROLE_ALWAYS)) { | |
1722 | /* RFC 3101 3.1 | |
1723 | * if new role is OSPF_NSSA_ROLE_ALWAYS we need to set | |
1724 | * Nt bit, if the role was OSPF_NSSA_ROLE_ALWAYS we need | |
1725 | * to clear Nt bit | |
1726 | */ | |
1727 | area->NSSATranslatorRole = role; | |
1728 | ospf_router_lsa_update_area(area); | |
1729 | } else | |
1730 | area->NSSATranslatorRole = role; | |
1731 | } | |
718e3744 | 1732 | |
d62a17ae | 1733 | return 1; |
718e3744 | 1734 | } |
1735 | ||
d62a17ae | 1736 | int ospf_area_export_list_set(struct ospf *ospf, struct ospf_area *area, |
1737 | const char *list_name) | |
718e3744 | 1738 | { |
d62a17ae | 1739 | struct access_list *list; |
1740 | list = access_list_lookup(AFI_IP, list_name); | |
718e3744 | 1741 | |
d62a17ae | 1742 | EXPORT_LIST(area) = list; |
718e3744 | 1743 | |
d62a17ae | 1744 | if (EXPORT_NAME(area)) |
1745 | free(EXPORT_NAME(area)); | |
718e3744 | 1746 | |
d62a17ae | 1747 | EXPORT_NAME(area) = strdup(list_name); |
1748 | ospf_schedule_abr_task(ospf); | |
718e3744 | 1749 | |
d62a17ae | 1750 | return 1; |
718e3744 | 1751 | } |
1752 | ||
d62a17ae | 1753 | int ospf_area_export_list_unset(struct ospf *ospf, struct ospf_area *area) |
718e3744 | 1754 | { |
1755 | ||
d62a17ae | 1756 | EXPORT_LIST(area) = 0; |
718e3744 | 1757 | |
d62a17ae | 1758 | if (EXPORT_NAME(area)) |
1759 | free(EXPORT_NAME(area)); | |
718e3744 | 1760 | |
d62a17ae | 1761 | EXPORT_NAME(area) = NULL; |
718e3744 | 1762 | |
d62a17ae | 1763 | ospf_area_check_free(ospf, area->area_id); |
718e3744 | 1764 | |
d62a17ae | 1765 | ospf_schedule_abr_task(ospf); |
1766 | ||
1767 | return 1; | |
718e3744 | 1768 | } |
1769 | ||
d62a17ae | 1770 | int ospf_area_import_list_set(struct ospf *ospf, struct ospf_area *area, |
1771 | const char *name) | |
718e3744 | 1772 | { |
d62a17ae | 1773 | struct access_list *list; |
1774 | list = access_list_lookup(AFI_IP, name); | |
718e3744 | 1775 | |
d62a17ae | 1776 | IMPORT_LIST(area) = list; |
718e3744 | 1777 | |
d62a17ae | 1778 | if (IMPORT_NAME(area)) |
1779 | free(IMPORT_NAME(area)); | |
718e3744 | 1780 | |
d62a17ae | 1781 | IMPORT_NAME(area) = strdup(name); |
1782 | ospf_schedule_abr_task(ospf); | |
718e3744 | 1783 | |
d62a17ae | 1784 | return 1; |
718e3744 | 1785 | } |
1786 | ||
d62a17ae | 1787 | int ospf_area_import_list_unset(struct ospf *ospf, struct ospf_area *area) |
718e3744 | 1788 | { |
d62a17ae | 1789 | IMPORT_LIST(area) = 0; |
718e3744 | 1790 | |
d62a17ae | 1791 | if (IMPORT_NAME(area)) |
1792 | free(IMPORT_NAME(area)); | |
718e3744 | 1793 | |
d62a17ae | 1794 | IMPORT_NAME(area) = NULL; |
1795 | ospf_area_check_free(ospf, area->area_id); | |
718e3744 | 1796 | |
d62a17ae | 1797 | ospf_schedule_abr_task(ospf); |
718e3744 | 1798 | |
d62a17ae | 1799 | return 1; |
718e3744 | 1800 | } |
1801 | ||
d62a17ae | 1802 | int ospf_timers_refresh_set(struct ospf *ospf, int interval) |
718e3744 | 1803 | { |
d62a17ae | 1804 | int time_left; |
718e3744 | 1805 | |
d62a17ae | 1806 | if (ospf->lsa_refresh_interval == interval) |
1807 | return 1; | |
718e3744 | 1808 | |
d62a17ae | 1809 | time_left = ospf->lsa_refresh_interval |
1810 | - (monotime(NULL) - ospf->lsa_refresher_started); | |
718e3744 | 1811 | |
d62a17ae | 1812 | if (time_left > interval) { |
1813 | OSPF_TIMER_OFF(ospf->t_lsa_refresher); | |
1814 | thread_add_timer(master, ospf_lsa_refresh_walker, ospf, | |
1815 | interval, &ospf->t_lsa_refresher); | |
1816 | } | |
1817 | ospf->lsa_refresh_interval = interval; | |
1818 | ||
1819 | return 1; | |
718e3744 | 1820 | } |
1821 | ||
d62a17ae | 1822 | int ospf_timers_refresh_unset(struct ospf *ospf) |
718e3744 | 1823 | { |
d62a17ae | 1824 | int time_left; |
718e3744 | 1825 | |
d62a17ae | 1826 | time_left = ospf->lsa_refresh_interval |
1827 | - (monotime(NULL) - ospf->lsa_refresher_started); | |
718e3744 | 1828 | |
d62a17ae | 1829 | if (time_left > OSPF_LSA_REFRESH_INTERVAL_DEFAULT) { |
1830 | OSPF_TIMER_OFF(ospf->t_lsa_refresher); | |
1831 | ospf->t_lsa_refresher = NULL; | |
1832 | thread_add_timer(master, ospf_lsa_refresh_walker, ospf, | |
1833 | OSPF_LSA_REFRESH_INTERVAL_DEFAULT, | |
1834 | &ospf->t_lsa_refresher); | |
1835 | } | |
718e3744 | 1836 | |
d62a17ae | 1837 | ospf->lsa_refresh_interval = OSPF_LSA_REFRESH_INTERVAL_DEFAULT; |
718e3744 | 1838 | |
d62a17ae | 1839 | return 1; |
718e3744 | 1840 | } |
1841 | ||
6b0655a2 | 1842 | |
d62a17ae | 1843 | static struct ospf_nbr_nbma *ospf_nbr_nbma_new(void) |
718e3744 | 1844 | { |
d62a17ae | 1845 | struct ospf_nbr_nbma *nbr_nbma; |
718e3744 | 1846 | |
d62a17ae | 1847 | nbr_nbma = XCALLOC(MTYPE_OSPF_NEIGHBOR_STATIC, |
1848 | sizeof(struct ospf_nbr_nbma)); | |
718e3744 | 1849 | |
d62a17ae | 1850 | nbr_nbma->priority = OSPF_NEIGHBOR_PRIORITY_DEFAULT; |
1851 | nbr_nbma->v_poll = OSPF_POLL_INTERVAL_DEFAULT; | |
718e3744 | 1852 | |
d62a17ae | 1853 | return nbr_nbma; |
718e3744 | 1854 | } |
1855 | ||
d62a17ae | 1856 | static void ospf_nbr_nbma_free(struct ospf_nbr_nbma *nbr_nbma) |
718e3744 | 1857 | { |
d62a17ae | 1858 | XFREE(MTYPE_OSPF_NEIGHBOR_STATIC, nbr_nbma); |
718e3744 | 1859 | } |
1860 | ||
d62a17ae | 1861 | static void ospf_nbr_nbma_delete(struct ospf *ospf, |
1862 | struct ospf_nbr_nbma *nbr_nbma) | |
718e3744 | 1863 | { |
d62a17ae | 1864 | struct route_node *rn; |
1865 | struct prefix_ipv4 p; | |
718e3744 | 1866 | |
d62a17ae | 1867 | p.family = AF_INET; |
1868 | p.prefix = nbr_nbma->addr; | |
1869 | p.prefixlen = IPV4_MAX_BITLEN; | |
718e3744 | 1870 | |
d62a17ae | 1871 | rn = route_node_lookup(ospf->nbr_nbma, (struct prefix *)&p); |
1872 | if (rn) { | |
1873 | ospf_nbr_nbma_free(rn->info); | |
1874 | rn->info = NULL; | |
1875 | route_unlock_node(rn); | |
1876 | route_unlock_node(rn); | |
1877 | } | |
718e3744 | 1878 | } |
1879 | ||
d62a17ae | 1880 | static void ospf_nbr_nbma_down(struct ospf_nbr_nbma *nbr_nbma) |
718e3744 | 1881 | { |
d62a17ae | 1882 | OSPF_TIMER_OFF(nbr_nbma->t_poll); |
718e3744 | 1883 | |
d62a17ae | 1884 | if (nbr_nbma->nbr) { |
1885 | nbr_nbma->nbr->nbr_nbma = NULL; | |
1886 | OSPF_NSM_EVENT_EXECUTE(nbr_nbma->nbr, NSM_KillNbr); | |
1887 | } | |
718e3744 | 1888 | |
d62a17ae | 1889 | if (nbr_nbma->oi) |
1890 | listnode_delete(nbr_nbma->oi->nbr_nbma, nbr_nbma); | |
718e3744 | 1891 | } |
1892 | ||
d62a17ae | 1893 | static void ospf_nbr_nbma_add(struct ospf_nbr_nbma *nbr_nbma, |
1894 | struct ospf_interface *oi) | |
718e3744 | 1895 | { |
d62a17ae | 1896 | struct ospf_neighbor *nbr; |
1897 | struct route_node *rn; | |
1898 | struct prefix p; | |
718e3744 | 1899 | |
d62a17ae | 1900 | if (oi->type != OSPF_IFTYPE_NBMA) |
1901 | return; | |
718e3744 | 1902 | |
d62a17ae | 1903 | if (nbr_nbma->nbr != NULL) |
1904 | return; | |
718e3744 | 1905 | |
d62a17ae | 1906 | if (IPV4_ADDR_SAME(&oi->nbr_self->address.u.prefix4, &nbr_nbma->addr)) |
1907 | return; | |
718e3744 | 1908 | |
d62a17ae | 1909 | nbr_nbma->oi = oi; |
1910 | listnode_add(oi->nbr_nbma, nbr_nbma); | |
718e3744 | 1911 | |
d62a17ae | 1912 | /* Get neighbor information from table. */ |
1913 | p.family = AF_INET; | |
1914 | p.prefixlen = IPV4_MAX_BITLEN; | |
1915 | p.u.prefix4 = nbr_nbma->addr; | |
718e3744 | 1916 | |
c4efd0f4 | 1917 | rn = route_node_get(oi->nbrs, &p); |
d62a17ae | 1918 | if (rn->info) { |
1919 | nbr = rn->info; | |
1920 | nbr->nbr_nbma = nbr_nbma; | |
1921 | nbr_nbma->nbr = nbr; | |
718e3744 | 1922 | |
d62a17ae | 1923 | route_unlock_node(rn); |
1924 | } else { | |
1925 | nbr = rn->info = ospf_nbr_new(oi); | |
1926 | nbr->state = NSM_Down; | |
1927 | nbr->src = nbr_nbma->addr; | |
1928 | nbr->nbr_nbma = nbr_nbma; | |
1929 | nbr->priority = nbr_nbma->priority; | |
1930 | nbr->address = p; | |
718e3744 | 1931 | |
d62a17ae | 1932 | nbr_nbma->nbr = nbr; |
1933 | ||
1934 | OSPF_NSM_EVENT_EXECUTE(nbr, NSM_Start); | |
1935 | } | |
718e3744 | 1936 | } |
1937 | ||
d62a17ae | 1938 | void ospf_nbr_nbma_if_update(struct ospf *ospf, struct ospf_interface *oi) |
718e3744 | 1939 | { |
d62a17ae | 1940 | struct ospf_nbr_nbma *nbr_nbma; |
1941 | struct route_node *rn; | |
1942 | struct prefix_ipv4 p; | |
718e3744 | 1943 | |
d62a17ae | 1944 | if (oi->type != OSPF_IFTYPE_NBMA) |
1945 | return; | |
718e3744 | 1946 | |
d62a17ae | 1947 | for (rn = route_top(ospf->nbr_nbma); rn; rn = route_next(rn)) |
1948 | if ((nbr_nbma = rn->info)) | |
1949 | if (nbr_nbma->oi == NULL && nbr_nbma->nbr == NULL) { | |
1950 | p.family = AF_INET; | |
1951 | p.prefix = nbr_nbma->addr; | |
1952 | p.prefixlen = IPV4_MAX_BITLEN; | |
718e3744 | 1953 | |
d62a17ae | 1954 | if (prefix_match(oi->address, |
1955 | (struct prefix *)&p)) | |
1956 | ospf_nbr_nbma_add(nbr_nbma, oi); | |
1957 | } | |
718e3744 | 1958 | } |
1959 | ||
d62a17ae | 1960 | struct ospf_nbr_nbma *ospf_nbr_nbma_lookup(struct ospf *ospf, |
1961 | struct in_addr nbr_addr) | |
718e3744 | 1962 | { |
d62a17ae | 1963 | struct route_node *rn; |
1964 | struct prefix_ipv4 p; | |
718e3744 | 1965 | |
d62a17ae | 1966 | p.family = AF_INET; |
1967 | p.prefix = nbr_addr; | |
1968 | p.prefixlen = IPV4_MAX_BITLEN; | |
718e3744 | 1969 | |
d62a17ae | 1970 | rn = route_node_lookup(ospf->nbr_nbma, (struct prefix *)&p); |
1971 | if (rn) { | |
1972 | route_unlock_node(rn); | |
1973 | return rn->info; | |
1974 | } | |
1975 | return NULL; | |
718e3744 | 1976 | } |
1977 | ||
d62a17ae | 1978 | int ospf_nbr_nbma_set(struct ospf *ospf, struct in_addr nbr_addr) |
718e3744 | 1979 | { |
d62a17ae | 1980 | struct ospf_nbr_nbma *nbr_nbma; |
1981 | struct ospf_interface *oi; | |
1982 | struct prefix_ipv4 p; | |
1983 | struct route_node *rn; | |
1984 | struct listnode *node; | |
718e3744 | 1985 | |
d62a17ae | 1986 | nbr_nbma = ospf_nbr_nbma_lookup(ospf, nbr_addr); |
1987 | if (nbr_nbma) | |
1988 | return 0; | |
718e3744 | 1989 | |
d62a17ae | 1990 | nbr_nbma = ospf_nbr_nbma_new(); |
1991 | nbr_nbma->addr = nbr_addr; | |
718e3744 | 1992 | |
d62a17ae | 1993 | p.family = AF_INET; |
1994 | p.prefix = nbr_addr; | |
1995 | p.prefixlen = IPV4_MAX_BITLEN; | |
718e3744 | 1996 | |
d62a17ae | 1997 | rn = route_node_get(ospf->nbr_nbma, (struct prefix *)&p); |
1998 | if (rn->info) | |
1999 | route_unlock_node(rn); | |
2000 | rn->info = nbr_nbma; | |
718e3744 | 2001 | |
d62a17ae | 2002 | for (ALL_LIST_ELEMENTS_RO(ospf->oiflist, node, oi)) { |
2003 | if (oi->type == OSPF_IFTYPE_NBMA) | |
2004 | if (prefix_match(oi->address, (struct prefix *)&p)) { | |
2005 | ospf_nbr_nbma_add(nbr_nbma, oi); | |
2006 | break; | |
2007 | } | |
2008 | } | |
718e3744 | 2009 | |
d62a17ae | 2010 | return 1; |
718e3744 | 2011 | } |
2012 | ||
d62a17ae | 2013 | int ospf_nbr_nbma_unset(struct ospf *ospf, struct in_addr nbr_addr) |
718e3744 | 2014 | { |
d62a17ae | 2015 | struct ospf_nbr_nbma *nbr_nbma; |
718e3744 | 2016 | |
d62a17ae | 2017 | nbr_nbma = ospf_nbr_nbma_lookup(ospf, nbr_addr); |
2018 | if (nbr_nbma == NULL) | |
2019 | return 0; | |
718e3744 | 2020 | |
d62a17ae | 2021 | ospf_nbr_nbma_down(nbr_nbma); |
2022 | ospf_nbr_nbma_delete(ospf, nbr_nbma); | |
718e3744 | 2023 | |
d62a17ae | 2024 | return 1; |
718e3744 | 2025 | } |
2026 | ||
d62a17ae | 2027 | int ospf_nbr_nbma_priority_set(struct ospf *ospf, struct in_addr nbr_addr, |
d7c0a89a | 2028 | uint8_t priority) |
718e3744 | 2029 | { |
d62a17ae | 2030 | struct ospf_nbr_nbma *nbr_nbma; |
718e3744 | 2031 | |
d62a17ae | 2032 | nbr_nbma = ospf_nbr_nbma_lookup(ospf, nbr_addr); |
2033 | if (nbr_nbma == NULL) | |
2034 | return 0; | |
718e3744 | 2035 | |
d62a17ae | 2036 | if (nbr_nbma->priority != priority) |
2037 | nbr_nbma->priority = priority; | |
718e3744 | 2038 | |
d62a17ae | 2039 | return 1; |
718e3744 | 2040 | } |
2041 | ||
d62a17ae | 2042 | int ospf_nbr_nbma_priority_unset(struct ospf *ospf, struct in_addr nbr_addr) |
718e3744 | 2043 | { |
d62a17ae | 2044 | struct ospf_nbr_nbma *nbr_nbma; |
718e3744 | 2045 | |
d62a17ae | 2046 | nbr_nbma = ospf_nbr_nbma_lookup(ospf, nbr_addr); |
2047 | if (nbr_nbma == NULL) | |
2048 | return 0; | |
718e3744 | 2049 | |
d62a17ae | 2050 | if (nbr_nbma != OSPF_NEIGHBOR_PRIORITY_DEFAULT) |
2051 | nbr_nbma->priority = OSPF_NEIGHBOR_PRIORITY_DEFAULT; | |
718e3744 | 2052 | |
d62a17ae | 2053 | return 1; |
718e3744 | 2054 | } |
2055 | ||
d62a17ae | 2056 | int ospf_nbr_nbma_poll_interval_set(struct ospf *ospf, struct in_addr nbr_addr, |
2057 | unsigned int interval) | |
718e3744 | 2058 | { |
d62a17ae | 2059 | struct ospf_nbr_nbma *nbr_nbma; |
718e3744 | 2060 | |
d62a17ae | 2061 | nbr_nbma = ospf_nbr_nbma_lookup(ospf, nbr_addr); |
2062 | if (nbr_nbma == NULL) | |
2063 | return 0; | |
718e3744 | 2064 | |
d62a17ae | 2065 | if (nbr_nbma->v_poll != interval) { |
2066 | nbr_nbma->v_poll = interval; | |
2067 | if (nbr_nbma->oi && ospf_if_is_up(nbr_nbma->oi)) { | |
2068 | OSPF_TIMER_OFF(nbr_nbma->t_poll); | |
2069 | OSPF_POLL_TIMER_ON(nbr_nbma->t_poll, ospf_poll_timer, | |
2070 | nbr_nbma->v_poll); | |
2071 | } | |
718e3744 | 2072 | } |
718e3744 | 2073 | |
d62a17ae | 2074 | return 1; |
718e3744 | 2075 | } |
2076 | ||
d62a17ae | 2077 | int ospf_nbr_nbma_poll_interval_unset(struct ospf *ospf, struct in_addr addr) |
718e3744 | 2078 | { |
d62a17ae | 2079 | struct ospf_nbr_nbma *nbr_nbma; |
718e3744 | 2080 | |
d62a17ae | 2081 | nbr_nbma = ospf_nbr_nbma_lookup(ospf, addr); |
2082 | if (nbr_nbma == NULL) | |
2083 | return 0; | |
718e3744 | 2084 | |
d62a17ae | 2085 | if (nbr_nbma->v_poll != OSPF_POLL_INTERVAL_DEFAULT) |
2086 | nbr_nbma->v_poll = OSPF_POLL_INTERVAL_DEFAULT; | |
718e3744 | 2087 | |
d62a17ae | 2088 | return 1; |
718e3744 | 2089 | } |
2090 | ||
d62a17ae | 2091 | void ospf_master_init(struct thread_master *master) |
718e3744 | 2092 | { |
d62a17ae | 2093 | memset(&ospf_master, 0, sizeof(struct ospf_master)); |
020709f9 | 2094 | |
d62a17ae | 2095 | om = &ospf_master; |
2096 | om->ospf = list_new(); | |
2097 | om->master = master; | |
020709f9 | 2098 | } |
b5a8894d CS |
2099 | |
2100 | /* Link OSPF instance to VRF. */ | |
2101 | void ospf_vrf_link(struct ospf *ospf, struct vrf *vrf) | |
2102 | { | |
2103 | ospf->vrf_id = vrf->vrf_id; | |
2104 | if (vrf->info != (void *)ospf) | |
2105 | vrf->info = (void *)ospf; | |
2106 | } | |
2107 | ||
2108 | /* Unlink OSPF instance from VRF. */ | |
2109 | void ospf_vrf_unlink(struct ospf *ospf, struct vrf *vrf) | |
2110 | { | |
2111 | if (vrf->info == (void *)ospf) | |
2112 | vrf->info = NULL; | |
2113 | ospf->vrf_id = VRF_UNKNOWN; | |
2114 | } | |
2115 | ||
2116 | /* This is hook function for vrf create called as part of vrf_init */ | |
2117 | static int ospf_vrf_new(struct vrf *vrf) | |
2118 | { | |
2119 | if (IS_DEBUG_OSPF_EVENT) | |
15569c58 DA |
2120 | zlog_debug("%s: VRF Created: %s(%u)", __func__, vrf->name, |
2121 | vrf->vrf_id); | |
b5a8894d CS |
2122 | |
2123 | return 0; | |
2124 | } | |
2125 | ||
2126 | /* This is hook function for vrf delete call as part of vrf_init */ | |
2127 | static int ospf_vrf_delete(struct vrf *vrf) | |
2128 | { | |
2129 | if (IS_DEBUG_OSPF_EVENT) | |
15569c58 DA |
2130 | zlog_debug("%s: VRF Deletion: %s(%u)", __func__, vrf->name, |
2131 | vrf->vrf_id); | |
b5a8894d CS |
2132 | |
2133 | return 0; | |
2134 | } | |
2135 | ||
3d9f7302 PZ |
2136 | static void ospf_set_redist_vrf_bitmaps(struct ospf *ospf) |
2137 | { | |
2138 | int type; | |
2139 | struct list *red_list; | |
2140 | ||
2141 | for (type = 0; type < ZEBRA_ROUTE_MAX; type++) { | |
2142 | red_list = ospf->redist[type]; | |
2143 | if (!red_list) | |
2144 | continue; | |
2145 | if (IS_DEBUG_OSPF_EVENT) | |
2146 | zlog_debug( | |
2147 | "%s: setting redist vrf %d bitmap for type %d", | |
2148 | __func__, ospf->vrf_id, type); | |
2149 | vrf_bitmap_set(zclient->redist[AFI_IP][type], ospf->vrf_id); | |
2150 | } | |
2151 | } | |
2152 | ||
b5a8894d CS |
2153 | /* Enable OSPF VRF instance */ |
2154 | static int ospf_vrf_enable(struct vrf *vrf) | |
2155 | { | |
2156 | struct ospf *ospf = NULL; | |
7d206035 | 2157 | vrf_id_t old_vrf_id; |
3c0eb8fa | 2158 | int ret = 0; |
b5a8894d CS |
2159 | |
2160 | if (IS_DEBUG_OSPF_EVENT) | |
5e81f5dd DS |
2161 | zlog_debug("%s: VRF %s id %u enabled", __func__, vrf->name, |
2162 | vrf->vrf_id); | |
b5a8894d CS |
2163 | |
2164 | ospf = ospf_lookup_by_name(vrf->name); | |
2165 | if (ospf) { | |
6895b354 PG |
2166 | if (ospf->name && strmatch(vrf->name, VRF_DEFAULT_NAME)) { |
2167 | XFREE(MTYPE_OSPF_TOP, ospf->name); | |
2168 | ospf->name = NULL; | |
2169 | } | |
b5a8894d CS |
2170 | old_vrf_id = ospf->vrf_id; |
2171 | /* We have instance configured, link to VRF and make it "up". */ | |
2172 | ospf_vrf_link(ospf, vrf); | |
2173 | if (IS_DEBUG_OSPF_EVENT) | |
996c9314 LB |
2174 | zlog_debug( |
2175 | "%s: ospf linked to vrf %s vrf_id %u (old id %u)", | |
5e81f5dd | 2176 | __func__, vrf->name, ospf->vrf_id, old_vrf_id); |
b5a8894d CS |
2177 | |
2178 | if (old_vrf_id != ospf->vrf_id) { | |
0cf6db21 | 2179 | frr_with_privs(&ospfd_privs) { |
6bb30c2c DL |
2180 | /* stop zebra redist to us for old vrf */ |
2181 | zclient_send_dereg_requests(zclient, | |
2182 | old_vrf_id); | |
3d9f7302 | 2183 | |
6bb30c2c | 2184 | ospf_set_redist_vrf_bitmaps(ospf); |
3d9f7302 | 2185 | |
6bb30c2c DL |
2186 | /* start zebra redist to us for new vrf */ |
2187 | ospf_zebra_vrf_register(ospf); | |
313d7993 | 2188 | |
6bb30c2c DL |
2189 | ret = ospf_sock_init(ospf); |
2190 | } | |
3c0eb8fa PG |
2191 | if (ret < 0 || ospf->fd <= 0) |
2192 | return 0; | |
996c9314 LB |
2193 | thread_add_read(master, ospf_read, ospf, ospf->fd, |
2194 | &ospf->t_read); | |
b5a8894d CS |
2195 | ospf->oi_running = 1; |
2196 | ospf_router_id_update(ospf); | |
2197 | } | |
2198 | } | |
2199 | ||
2200 | return 0; | |
2201 | } | |
2202 | ||
2203 | /* Disable OSPF VRF instance */ | |
2204 | static int ospf_vrf_disable(struct vrf *vrf) | |
2205 | { | |
2206 | struct ospf *ospf = NULL; | |
2207 | vrf_id_t old_vrf_id = VRF_UNKNOWN; | |
2208 | ||
2209 | if (vrf->vrf_id == VRF_DEFAULT) | |
2210 | return 0; | |
2211 | ||
2212 | if (IS_DEBUG_OSPF_EVENT) | |
15569c58 DA |
2213 | zlog_debug("%s: VRF %s id %d disabled.", __func__, vrf->name, |
2214 | vrf->vrf_id); | |
b5a8894d CS |
2215 | |
2216 | ospf = ospf_lookup_by_name(vrf->name); | |
2217 | if (ospf) { | |
2218 | old_vrf_id = ospf->vrf_id; | |
2219 | ||
2220 | /* We have instance configured, unlink | |
2221 | * from VRF and make it "down". | |
2222 | */ | |
2223 | ospf_vrf_unlink(ospf, vrf); | |
2224 | ospf->oi_running = 0; | |
2225 | if (IS_DEBUG_OSPF_EVENT) | |
15569c58 DA |
2226 | zlog_debug("%s: ospf old_vrf_id %d unlinked", __func__, |
2227 | old_vrf_id); | |
b3d6bc6e | 2228 | thread_cancel(&ospf->t_read); |
3c0eb8fa PG |
2229 | close(ospf->fd); |
2230 | ospf->fd = -1; | |
b5a8894d CS |
2231 | } |
2232 | ||
2233 | /* Note: This is a callback, the VRF will be deleted by the caller. */ | |
2234 | return 0; | |
2235 | } | |
2236 | ||
2237 | void ospf_vrf_init(void) | |
2238 | { | |
996c9314 | 2239 | vrf_init(ospf_vrf_new, ospf_vrf_enable, ospf_vrf_disable, |
b5c056fa | 2240 | ospf_vrf_delete, ospf_vrf_enable); |
b5a8894d CS |
2241 | } |
2242 | ||
2243 | void ospf_vrf_terminate(void) | |
2244 | { | |
2245 | vrf_terminate(); | |
2246 | } | |
2247 | ||
2248 | const char *ospf_vrf_id_to_name(vrf_id_t vrf_id) | |
2249 | { | |
2250 | struct vrf *vrf = vrf_lookup_by_id(vrf_id); | |
2251 | ||
2252 | return vrf ? vrf->name : "NIL"; | |
2253 | } | |
88b6b28e DS |
2254 | |
2255 | const char *ospf_get_name(const struct ospf *ospf) | |
2256 | { | |
2257 | if (ospf->name) | |
2258 | return ospf->name; | |
2259 | else | |
2260 | return VRF_DEFAULT_NAME; | |
2261 | } |