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718e3744 | 1 | /* |
2 | * This is an implementation of rfc2370. | |
3 | * Copyright (C) 2001 KDD R&D Laboratories, Inc. | |
4 | * http://www.kddlabs.co.jp/ | |
5 | * | |
6 | * This file is part of GNU Zebra. | |
7 | * | |
8 | * GNU Zebra is free software; you can redistribute it and/or modify it | |
9 | * under the terms of the GNU General Public License as published by the | |
10 | * Free Software Foundation; either version 2, or (at your option) any | |
11 | * later version. | |
12 | * | |
13 | * GNU Zebra is distributed in the hope that it will be useful, but | |
14 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
16 | * General Public License for more details. | |
17 | * | |
18 | * You should have received a copy of the GNU General Public License | |
19 | * along with GNU Zebra; see the file COPYING. If not, write to the Free | |
20 | * Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA | |
21 | * 02111-1307, USA. | |
22 | */ | |
23 | ||
24 | /***** MTYPE definitions are not reflected to "memory.h" yet. *****/ | |
25 | #define MTYPE_OSPF_OPAQUE_FUNCTAB 0 | |
26 | #define MTYPE_OPAQUE_INFO_PER_TYPE 0 | |
27 | #define MTYPE_OPAQUE_INFO_PER_ID 0 | |
28 | ||
29 | #include <zebra.h> | |
30 | #ifdef HAVE_OPAQUE_LSA | |
31 | ||
32 | #include "linklist.h" | |
33 | #include "prefix.h" | |
34 | #include "if.h" | |
35 | #include "table.h" | |
36 | #include "memory.h" | |
37 | #include "command.h" | |
38 | #include "vty.h" | |
39 | #include "stream.h" | |
40 | #include "log.h" | |
41 | #include "thread.h" | |
42 | #include "hash.h" | |
43 | #include "sockunion.h" /* for inet_aton() */ | |
44 | ||
45 | #include "ospfd/ospfd.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_flood.h" | |
54 | #include "ospfd/ospf_packet.h" | |
55 | #include "ospfd/ospf_spf.h" | |
56 | #include "ospfd/ospf_dump.h" | |
57 | #include "ospfd/ospf_route.h" | |
58 | #include "ospfd/ospf_ase.h" | |
59 | #include "ospfd/ospf_zebra.h" | |
60 | ||
61 | /*------------------------------------------------------------------------* | |
62 | * Followings are initialize/terminate functions for Opaque-LSAs handling. | |
63 | *------------------------------------------------------------------------*/ | |
64 | ||
65 | #ifdef HAVE_OSPF_TE | |
66 | #include "ospfd/ospf_te.h" | |
67 | #endif /* HAVE_OSPF_TE */ | |
68 | ||
283ae334 | 69 | #ifdef SUPPORT_OSPF_API |
70 | int ospf_apiserver_init (void); | |
71 | void ospf_apiserver_term (void); | |
f4d58ce5 | 72 | /* Init apiserver? It's disabled by default. */ |
73 | int ospf_apiserver_enable; | |
283ae334 | 74 | #endif /* SUPPORT_OSPF_API */ |
75 | ||
718e3744 | 76 | static void ospf_opaque_register_vty (void); |
77 | static void ospf_opaque_funclist_init (void); | |
78 | static void ospf_opaque_funclist_term (void); | |
79 | static void free_opaque_info_per_type (void *val); | |
80 | static void free_opaque_info_per_id (void *val); | |
81 | static int ospf_opaque_lsa_install_hook (struct ospf_lsa *lsa); | |
82 | static int ospf_opaque_lsa_delete_hook (struct ospf_lsa *lsa); | |
83 | ||
84 | void | |
85 | ospf_opaque_init (void) | |
86 | { | |
87 | ospf_opaque_register_vty (); | |
88 | ospf_opaque_funclist_init (); | |
89 | ||
90 | #ifdef HAVE_OSPF_TE | |
91 | if (ospf_mpls_te_init () != 0) | |
92 | exit (1); | |
93 | #endif /* HAVE_OSPF_TE */ | |
94 | ||
283ae334 | 95 | #ifdef SUPPORT_OSPF_API |
c3abdb72 | 96 | if ((ospf_apiserver_enable) && (ospf_apiserver_init () != 0)) |
283ae334 | 97 | exit (1); |
98 | #endif /* SUPPORT_OSPF_API */ | |
99 | ||
718e3744 | 100 | return; |
101 | } | |
102 | ||
103 | void | |
104 | ospf_opaque_term (void) | |
105 | { | |
106 | #ifdef HAVE_OSPF_TE | |
107 | ospf_mpls_te_term (); | |
108 | #endif /* HAVE_OSPF_TE */ | |
109 | ||
283ae334 | 110 | #ifdef SUPPORT_OSPF_API |
111 | ospf_apiserver_term (); | |
112 | #endif /* SUPPORT_OSPF_API */ | |
113 | ||
718e3744 | 114 | ospf_opaque_funclist_term (); |
115 | return; | |
116 | } | |
117 | ||
118 | int | |
119 | ospf_opaque_type9_lsa_init (struct ospf_interface *oi) | |
120 | { | |
121 | if (oi->opaque_lsa_self != NULL) | |
122 | list_delete (oi->opaque_lsa_self); | |
123 | ||
124 | oi->opaque_lsa_self = list_new (); | |
125 | oi->opaque_lsa_self->del = free_opaque_info_per_type; | |
126 | oi->t_opaque_lsa_self = NULL; | |
127 | return 0; | |
128 | } | |
129 | ||
130 | void | |
131 | ospf_opaque_type9_lsa_term (struct ospf_interface *oi) | |
132 | { | |
133 | OSPF_TIMER_OFF (oi->t_opaque_lsa_self); | |
134 | if (oi->opaque_lsa_self != NULL) | |
135 | list_delete (oi->opaque_lsa_self); | |
136 | oi->opaque_lsa_self = NULL; | |
137 | return; | |
138 | } | |
139 | ||
140 | int | |
141 | ospf_opaque_type10_lsa_init (struct ospf_area *area) | |
142 | { | |
143 | if (area->opaque_lsa_self != NULL) | |
144 | list_delete (area->opaque_lsa_self); | |
145 | ||
146 | area->opaque_lsa_self = list_new (); | |
147 | area->opaque_lsa_self->del = free_opaque_info_per_type; | |
148 | area->t_opaque_lsa_self = NULL; | |
149 | ||
150 | #ifdef MONITOR_LSDB_CHANGE | |
151 | area->lsdb->new_lsa_hook = ospf_opaque_lsa_install_hook; | |
152 | area->lsdb->del_lsa_hook = ospf_opaque_lsa_delete_hook; | |
153 | #endif /* MONITOR_LSDB_CHANGE */ | |
154 | return 0; | |
155 | } | |
156 | ||
157 | void | |
158 | ospf_opaque_type10_lsa_term (struct ospf_area *area) | |
159 | { | |
160 | #ifdef MONITOR_LSDB_CHANGE | |
161 | area->lsdb->new_lsa_hook = | |
162 | area->lsdb->del_lsa_hook = NULL; | |
163 | #endif /* MONITOR_LSDB_CHANGE */ | |
164 | ||
165 | OSPF_TIMER_OFF (area->t_opaque_lsa_self); | |
166 | if (area->opaque_lsa_self != NULL) | |
167 | list_delete (area->opaque_lsa_self); | |
168 | area->opaque_lsa_self = NULL; | |
169 | return; | |
170 | } | |
171 | ||
172 | int | |
173 | ospf_opaque_type11_lsa_init (struct ospf *top) | |
174 | { | |
175 | if (top->opaque_lsa_self != NULL) | |
176 | list_delete (top->opaque_lsa_self); | |
177 | ||
178 | top->opaque_lsa_self = list_new (); | |
179 | top->opaque_lsa_self->del = free_opaque_info_per_type; | |
180 | top->t_opaque_lsa_self = NULL; | |
181 | ||
182 | #ifdef MONITOR_LSDB_CHANGE | |
183 | top->lsdb->new_lsa_hook = ospf_opaque_lsa_install_hook; | |
184 | top->lsdb->del_lsa_hook = ospf_opaque_lsa_delete_hook; | |
185 | #endif /* MONITOR_LSDB_CHANGE */ | |
186 | return 0; | |
187 | } | |
188 | ||
189 | void | |
190 | ospf_opaque_type11_lsa_term (struct ospf *top) | |
191 | { | |
192 | #ifdef MONITOR_LSDB_CHANGE | |
193 | top->lsdb->new_lsa_hook = | |
194 | top->lsdb->del_lsa_hook = NULL; | |
195 | #endif /* MONITOR_LSDB_CHANGE */ | |
196 | ||
197 | OSPF_TIMER_OFF (top->t_opaque_lsa_self); | |
198 | if (top->opaque_lsa_self != NULL) | |
199 | list_delete (top->opaque_lsa_self); | |
200 | top->opaque_lsa_self = NULL; | |
201 | return; | |
202 | } | |
203 | ||
204 | static const char * | |
205 | ospf_opaque_type_name (u_char opaque_type) | |
206 | { | |
207 | const char *name = "Unknown"; | |
208 | ||
209 | switch (opaque_type) | |
210 | { | |
211 | case OPAQUE_TYPE_WILDCARD: /* This is a special assignment! */ | |
212 | name = "Wildcard"; | |
213 | break; | |
214 | case OPAQUE_TYPE_TRAFFIC_ENGINEERING_LSA: | |
215 | name = "Traffic Engineering LSA"; | |
216 | break; | |
217 | case OPAQUE_TYPE_SYCAMORE_OPTICAL_TOPOLOGY_DESC: | |
218 | name = "Sycamore optical topology description"; | |
219 | break; | |
220 | case OPAQUE_TYPE_GRACE_LSA: | |
221 | name = "Grace-LSA"; | |
222 | break; | |
223 | default: | |
224 | if (OPAQUE_TYPE_RANGE_UNASSIGNED (opaque_type)) | |
225 | name = "Unassigned"; | |
f4436f7b | 226 | /* XXX warning: comparison is always true due to limited range of data type */ |
718e3744 | 227 | else if (OPAQUE_TYPE_RANGE_RESERVED (opaque_type)) |
228 | name = "Private/Experimental"; | |
229 | break; | |
230 | } | |
231 | return name; | |
232 | } | |
233 | ||
234 | /*------------------------------------------------------------------------* | |
235 | * Followings are management functions to store user specified callbacks. | |
236 | *------------------------------------------------------------------------*/ | |
237 | ||
238 | struct opaque_info_per_type; /* Forward declaration. */ | |
239 | ||
240 | struct ospf_opaque_functab | |
241 | { | |
242 | u_char opaque_type; | |
243 | struct opaque_info_per_type *oipt; | |
244 | ||
245 | int (* new_if_hook)(struct interface *ifp); | |
246 | int (* del_if_hook)(struct interface *ifp); | |
247 | void (* ism_change_hook)(struct ospf_interface *oi, int old_status); | |
248 | void (* nsm_change_hook)(struct ospf_neighbor *nbr, int old_status); | |
249 | void (* config_write_router)(struct vty *vty); | |
250 | void (* config_write_if )(struct vty *vty, struct interface *ifp); | |
251 | void (* config_write_debug )(struct vty *vty); | |
252 | void (* show_opaque_info )(struct vty *vty, struct ospf_lsa *lsa); | |
253 | int (* lsa_originator)(void *arg); | |
254 | void (* lsa_refresher )(struct ospf_lsa *lsa); | |
255 | int (* new_lsa_hook)(struct ospf_lsa *lsa); | |
256 | int (* del_lsa_hook)(struct ospf_lsa *lsa); | |
257 | }; | |
258 | ||
87d6f87a | 259 | /* Handle LSA-9/10/11 altogether. */ |
260 | static struct list *ospf_opaque_wildcard_funclist; | |
261 | static struct list *ospf_opaque_type9_funclist; | |
262 | static struct list *ospf_opaque_type10_funclist; | |
263 | static struct list *ospf_opaque_type11_funclist; | |
718e3744 | 264 | |
265 | static void | |
266 | ospf_opaque_del_functab (void *val) | |
267 | { | |
268 | XFREE (MTYPE_OSPF_OPAQUE_FUNCTAB, val); | |
269 | return; | |
270 | } | |
271 | ||
272 | static void | |
273 | ospf_opaque_funclist_init (void) | |
274 | { | |
87d6f87a | 275 | struct list *funclist; |
718e3744 | 276 | |
09e4efdc | 277 | funclist = ospf_opaque_wildcard_funclist = list_new (); |
278 | funclist->del = ospf_opaque_del_functab; | |
279 | ||
718e3744 | 280 | funclist = ospf_opaque_type9_funclist = list_new (); |
281 | funclist->del = ospf_opaque_del_functab; | |
282 | ||
283 | funclist = ospf_opaque_type10_funclist = list_new (); | |
284 | funclist->del = ospf_opaque_del_functab; | |
285 | ||
286 | funclist = ospf_opaque_type11_funclist = list_new (); | |
287 | funclist->del = ospf_opaque_del_functab; | |
288 | return; | |
289 | } | |
290 | ||
291 | static void | |
292 | ospf_opaque_funclist_term (void) | |
293 | { | |
87d6f87a | 294 | struct list *funclist; |
718e3744 | 295 | |
09e4efdc | 296 | funclist = ospf_opaque_wildcard_funclist; |
297 | list_delete (funclist); | |
298 | ||
718e3744 | 299 | funclist = ospf_opaque_type9_funclist; |
300 | list_delete (funclist); | |
301 | ||
302 | funclist = ospf_opaque_type10_funclist; | |
303 | list_delete (funclist); | |
304 | ||
305 | funclist = ospf_opaque_type11_funclist; | |
306 | list_delete (funclist); | |
307 | return; | |
308 | } | |
309 | ||
87d6f87a | 310 | static struct list * |
718e3744 | 311 | ospf_get_opaque_funclist (u_char lsa_type) |
312 | { | |
87d6f87a | 313 | struct list *funclist = NULL; |
718e3744 | 314 | |
315 | switch (lsa_type) | |
316 | { | |
09e4efdc | 317 | case OPAQUE_TYPE_WILDCARD: |
318 | /* XXX | |
319 | * This is an ugly trick to handle type-9/10/11 LSA altogether. | |
320 | * Yes, "OPAQUE_TYPE_WILDCARD (value 0)" is not an LSA-type, nor | |
321 | * an officially assigned opaque-type. | |
322 | * Though it is possible that the value might be officially used | |
323 | * in the future, we use it internally as a special label, for now. | |
324 | */ | |
325 | funclist = ospf_opaque_wildcard_funclist; | |
326 | break; | |
718e3744 | 327 | case OSPF_OPAQUE_LINK_LSA: |
328 | funclist = ospf_opaque_type9_funclist; | |
329 | break; | |
330 | case OSPF_OPAQUE_AREA_LSA: | |
331 | funclist = ospf_opaque_type10_funclist; | |
332 | break; | |
333 | case OSPF_OPAQUE_AS_LSA: | |
334 | funclist = ospf_opaque_type11_funclist; | |
335 | break; | |
336 | default: | |
337 | zlog_warn ("ospf_get_opaque_funclist: Unexpected LSA-type(%u)", lsa_type); | |
338 | break; | |
339 | } | |
340 | return funclist; | |
341 | } | |
342 | ||
87d6f87a | 343 | /* XXX: such a huge argument list can /not/ be healthy... */ |
718e3744 | 344 | int |
345 | ospf_register_opaque_functab ( | |
346 | u_char lsa_type, | |
347 | u_char opaque_type, | |
348 | int (* new_if_hook)(struct interface *ifp), | |
349 | int (* del_if_hook)(struct interface *ifp), | |
350 | void (* ism_change_hook)(struct ospf_interface *oi, int old_status), | |
351 | void (* nsm_change_hook)(struct ospf_neighbor *nbr, int old_status), | |
352 | void (* config_write_router)(struct vty *vty), | |
353 | void (* config_write_if )(struct vty *vty, struct interface *ifp), | |
354 | void (* config_write_debug )(struct vty *vty), | |
355 | void (* show_opaque_info )(struct vty *vty, struct ospf_lsa *lsa), | |
356 | int (* lsa_originator)(void *arg), | |
357 | void (* lsa_refresher )(struct ospf_lsa *lsa), | |
358 | int (* new_lsa_hook)(struct ospf_lsa *lsa), | |
359 | int (* del_lsa_hook)(struct ospf_lsa *lsa)) | |
360 | { | |
87d6f87a | 361 | struct list *funclist; |
718e3744 | 362 | struct ospf_opaque_functab *new; |
363 | int rc = -1; | |
364 | ||
365 | if ((funclist = ospf_get_opaque_funclist (lsa_type)) == NULL) | |
366 | { | |
87d6f87a | 367 | zlog_warn ("ospf_register_opaque_functab: Cannot get funclist" |
368 | " for Type-%u LSAs?", | |
369 | lsa_type); | |
718e3744 | 370 | goto out; |
371 | } | |
372 | else | |
373 | { | |
1eb8ef25 | 374 | struct listnode *node, *nnode; |
718e3744 | 375 | struct ospf_opaque_functab *functab; |
87d6f87a | 376 | |
1eb8ef25 | 377 | for (ALL_LIST_ELEMENTS (funclist, node, nnode, functab)) |
87d6f87a | 378 | if (functab->opaque_type == opaque_type) |
379 | { | |
380 | zlog_warn ("ospf_register_opaque_functab: Duplicated entry?:" | |
381 | " lsa_type(%u), opaque_type(%u)", | |
382 | lsa_type, opaque_type); | |
383 | goto out; | |
384 | } | |
718e3744 | 385 | } |
386 | ||
387 | if ((new = XCALLOC (MTYPE_OSPF_OPAQUE_FUNCTAB, | |
388 | sizeof (struct ospf_opaque_functab))) == NULL) | |
389 | { | |
87d6f87a | 390 | zlog_warn ("ospf_register_opaque_functab: XMALLOC: %s", |
6099b3b5 | 391 | safe_strerror (errno)); |
718e3744 | 392 | goto out; |
393 | } | |
394 | ||
395 | new->opaque_type = opaque_type; | |
396 | new->oipt = NULL; | |
397 | new->new_if_hook = new_if_hook; | |
398 | new->del_if_hook = del_if_hook; | |
399 | new->ism_change_hook = ism_change_hook; | |
400 | new->nsm_change_hook = nsm_change_hook; | |
401 | new->config_write_router = config_write_router; | |
402 | new->config_write_if = config_write_if; | |
403 | new->config_write_debug = config_write_debug; | |
404 | new->show_opaque_info = show_opaque_info; | |
405 | new->lsa_originator = lsa_originator; | |
406 | new->lsa_refresher = lsa_refresher; | |
407 | new->new_lsa_hook = new_lsa_hook; | |
408 | new->del_lsa_hook = del_lsa_hook; | |
409 | ||
410 | listnode_add (funclist, new); | |
411 | rc = 0; | |
412 | ||
413 | out: | |
414 | return rc; | |
415 | } | |
416 | ||
417 | void | |
418 | ospf_delete_opaque_functab (u_char lsa_type, u_char opaque_type) | |
419 | { | |
87d6f87a | 420 | struct list *funclist; |
1eb8ef25 | 421 | struct listnode *node, *nnode; |
718e3744 | 422 | struct ospf_opaque_functab *functab; |
423 | ||
424 | if ((funclist = ospf_get_opaque_funclist (lsa_type)) != NULL) | |
1eb8ef25 | 425 | for (ALL_LIST_ELEMENTS (funclist, node, nnode, functab)) |
718e3744 | 426 | { |
1eb8ef25 | 427 | if (functab->opaque_type == opaque_type) |
718e3744 | 428 | { |
429 | /* Cleanup internal control information, if it still remains. */ | |
430 | if (functab->oipt != NULL) | |
431 | free_opaque_info_per_type (functab->oipt); | |
432 | ||
433 | /* Dequeue listnode entry from the list. */ | |
434 | listnode_delete (funclist, functab); | |
435 | ||
436 | /* Avoid misjudgement in the next lookup. */ | |
437 | if (listcount (funclist) == 0) | |
438 | funclist->head = funclist->tail = NULL; | |
439 | ||
440 | XFREE (MTYPE_OSPF_OPAQUE_FUNCTAB, functab); | |
87d6f87a | 441 | break; |
718e3744 | 442 | } |
443 | } | |
87d6f87a | 444 | |
718e3744 | 445 | return; |
446 | } | |
447 | ||
448 | static struct ospf_opaque_functab * | |
449 | ospf_opaque_functab_lookup (struct ospf_lsa *lsa) | |
450 | { | |
87d6f87a | 451 | struct list *funclist; |
452 | struct listnode *node; | |
718e3744 | 453 | struct ospf_opaque_functab *functab; |
454 | u_char key = GET_OPAQUE_TYPE (ntohl (lsa->data->id.s_addr)); | |
455 | ||
456 | if ((funclist = ospf_get_opaque_funclist (lsa->data->type)) != NULL) | |
1eb8ef25 | 457 | for (ALL_LIST_ELEMENTS_RO (funclist, node, functab)) |
87d6f87a | 458 | if (functab->opaque_type == key) |
459 | return functab; | |
718e3744 | 460 | |
461 | return NULL; | |
462 | } | |
463 | ||
464 | /*------------------------------------------------------------------------* | |
465 | * Followings are management functions for self-originated LSA entries. | |
466 | *------------------------------------------------------------------------*/ | |
467 | ||
468 | /* | |
469 | * Opaque-LSA control information per opaque-type. | |
470 | * Single Opaque-Type may have multiple instances; each of them will be | |
471 | * identified by their opaque-id. | |
472 | */ | |
473 | struct opaque_info_per_type | |
474 | { | |
09e4efdc | 475 | u_char lsa_type; |
718e3744 | 476 | u_char opaque_type; |
477 | ||
478 | enum { PROC_NORMAL, PROC_SUSPEND } status; | |
479 | ||
480 | /* | |
481 | * Thread for (re-)origination scheduling for this opaque-type. | |
482 | * | |
483 | * Initial origination of Opaque-LSAs is controlled by generic | |
484 | * Opaque-LSA handling module so that same opaque-type entries are | |
485 | * called all at once when certain conditions are met. | |
486 | * However, there might be cases that some Opaque-LSA clients need | |
487 | * to (re-)originate their own Opaque-LSAs out-of-sync with others. | |
488 | * This thread is prepared for that specific purpose. | |
489 | */ | |
490 | struct thread *t_opaque_lsa_self; | |
491 | ||
492 | /* | |
09e4efdc | 493 | * Backpointer to an "owner" which is LSA-type dependent. |
718e3744 | 494 | * type-9: struct ospf_interface |
495 | * type-10: struct ospf_area | |
496 | * type-11: struct ospf | |
497 | */ | |
498 | void *owner; | |
499 | ||
500 | /* Collection of callback functions for this opaque-type. */ | |
501 | struct ospf_opaque_functab *functab; | |
502 | ||
503 | /* List of Opaque-LSA control informations per opaque-id. */ | |
87d6f87a | 504 | struct list *id_list; |
718e3744 | 505 | }; |
506 | ||
507 | /* Opaque-LSA control information per opaque-id. */ | |
508 | struct opaque_info_per_id | |
509 | { | |
510 | u_int32_t opaque_id; | |
511 | ||
512 | /* Thread for refresh/flush scheduling for this opaque-type/id. */ | |
513 | struct thread *t_opaque_lsa_self; | |
514 | ||
515 | /* Backpointer to Opaque-LSA control information per opaque-type. */ | |
516 | struct opaque_info_per_type *opqctl_type; | |
517 | ||
518 | /* Here comes an actual Opaque-LSA entry for this opaque-type/id. */ | |
519 | struct ospf_lsa *lsa; | |
520 | }; | |
521 | ||
522 | static struct opaque_info_per_type *register_opaque_info_per_type (struct ospf_opaque_functab *functab, struct ospf_lsa *new); | |
523 | static struct opaque_info_per_type *lookup_opaque_info_by_type (struct ospf_lsa *lsa); | |
524 | static struct opaque_info_per_id *register_opaque_info_per_id (struct opaque_info_per_type *oipt, struct ospf_lsa *new); | |
525 | static struct opaque_info_per_id *lookup_opaque_info_by_id (struct opaque_info_per_type *oipt, struct ospf_lsa *lsa); | |
526 | static struct opaque_info_per_id *register_opaque_lsa (struct ospf_lsa *new); | |
527 | ||
528 | ||
529 | static struct opaque_info_per_type * | |
530 | register_opaque_info_per_type (struct ospf_opaque_functab *functab, | |
531 | struct ospf_lsa *new) | |
532 | { | |
533 | struct ospf *top; | |
534 | struct opaque_info_per_type *oipt; | |
535 | ||
536 | if ((oipt = XCALLOC (MTYPE_OPAQUE_INFO_PER_TYPE, | |
537 | sizeof (struct opaque_info_per_type))) == NULL) | |
538 | { | |
6099b3b5 | 539 | zlog_warn ("register_opaque_info_per_type: XMALLOC: %s", safe_strerror (errno)); |
718e3744 | 540 | goto out; |
541 | } | |
542 | ||
543 | switch (new->data->type) | |
544 | { | |
545 | case OSPF_OPAQUE_LINK_LSA: | |
546 | oipt->owner = new->oi; | |
547 | listnode_add (new->oi->opaque_lsa_self, oipt); | |
548 | break; | |
549 | case OSPF_OPAQUE_AREA_LSA: | |
550 | oipt->owner = new->area; | |
551 | listnode_add (new->area->opaque_lsa_self, oipt); | |
552 | break; | |
553 | case OSPF_OPAQUE_AS_LSA: | |
020709f9 | 554 | top = ospf_lookup (); |
68980084 | 555 | if (new->area != NULL && (top = new->area->ospf) == NULL) |
718e3744 | 556 | { |
557 | free_opaque_info_per_type ((void *) oipt); | |
558 | oipt = NULL; | |
559 | goto out; /* This case may not exist. */ | |
560 | } | |
561 | oipt->owner = top; | |
562 | listnode_add (top->opaque_lsa_self, oipt); | |
563 | break; | |
564 | default: | |
09e4efdc | 565 | zlog_warn ("register_opaque_info_per_type: Unexpected LSA-type(%u)", new->data->type); |
718e3744 | 566 | free_opaque_info_per_type ((void *) oipt); |
567 | oipt = NULL; | |
568 | goto out; /* This case may not exist. */ | |
569 | } | |
570 | ||
09e4efdc | 571 | oipt->lsa_type = new->data->type; |
718e3744 | 572 | oipt->opaque_type = GET_OPAQUE_TYPE (ntohl (new->data->id.s_addr)); |
573 | oipt->status = PROC_NORMAL; | |
574 | oipt->t_opaque_lsa_self = NULL; | |
575 | oipt->functab = functab; | |
576 | functab->oipt = oipt; | |
577 | oipt->id_list = list_new (); | |
578 | oipt->id_list->del = free_opaque_info_per_id; | |
579 | ||
580 | out: | |
581 | return oipt; | |
582 | } | |
583 | ||
584 | static void | |
585 | free_opaque_info_per_type (void *val) | |
586 | { | |
587 | struct opaque_info_per_type *oipt = (struct opaque_info_per_type *) val; | |
588 | struct opaque_info_per_id *oipi; | |
589 | struct ospf_lsa *lsa; | |
1eb8ef25 | 590 | struct listnode *node, *nnode; |
718e3744 | 591 | |
592 | /* Control information per opaque-id may still exist. */ | |
1eb8ef25 | 593 | for (ALL_LIST_ELEMENTS (oipt->id_list, node, nnode, oipi)) |
718e3744 | 594 | { |
718e3744 | 595 | if ((lsa = oipi->lsa) == NULL) |
596 | continue; | |
597 | if (IS_LSA_MAXAGE (lsa)) | |
598 | continue; | |
599 | ospf_opaque_lsa_flush_schedule (lsa); | |
600 | } | |
601 | ||
09e4efdc | 602 | /* Remove "oipt" from its owner's self-originated LSA list. */ |
603 | switch (oipt->lsa_type) | |
604 | { | |
605 | case OSPF_OPAQUE_LINK_LSA: | |
606 | { | |
607 | struct ospf_interface *oi = (struct ospf_interface *)(oipt->owner); | |
608 | listnode_delete (oi->opaque_lsa_self, oipt); | |
609 | break; | |
610 | } | |
611 | case OSPF_OPAQUE_AREA_LSA: | |
612 | { | |
613 | struct ospf_area *area = (struct ospf_area *)(oipt->owner); | |
614 | listnode_delete (area->opaque_lsa_self, oipt); | |
615 | break; | |
616 | } | |
617 | case OSPF_OPAQUE_AS_LSA: | |
618 | { | |
619 | struct ospf *top = (struct ospf *)(oipt->owner); | |
620 | listnode_delete (top->opaque_lsa_self, oipt); | |
621 | break; | |
622 | } | |
623 | default: | |
624 | zlog_warn ("free_opaque_info_per_type: Unexpected LSA-type(%u)", oipt->lsa_type); | |
625 | break; /* This case may not exist. */ | |
626 | } | |
627 | ||
718e3744 | 628 | OSPF_TIMER_OFF (oipt->t_opaque_lsa_self); |
629 | list_delete (oipt->id_list); | |
630 | XFREE (MTYPE_OPAQUE_INFO_PER_TYPE, oipt); | |
631 | return; | |
632 | } | |
633 | ||
634 | static struct opaque_info_per_type * | |
635 | lookup_opaque_info_by_type (struct ospf_lsa *lsa) | |
636 | { | |
637 | struct ospf *top; | |
638 | struct ospf_area *area; | |
639 | struct ospf_interface *oi; | |
87d6f87a | 640 | struct list *listtop = NULL; |
1eb8ef25 | 641 | struct listnode *node, *nnode; |
718e3744 | 642 | struct opaque_info_per_type *oipt = NULL; |
643 | u_char key = GET_OPAQUE_TYPE (ntohl (lsa->data->id.s_addr)); | |
644 | ||
645 | switch (lsa->data->type) | |
646 | { | |
647 | case OSPF_OPAQUE_LINK_LSA: | |
648 | if ((oi = lsa->oi) != NULL) | |
649 | listtop = oi->opaque_lsa_self; | |
650 | else | |
651 | zlog_warn ("Type-9 Opaque-LSA: Reference to OI is missing?"); | |
652 | break; | |
653 | case OSPF_OPAQUE_AREA_LSA: | |
654 | if ((area = lsa->area) != NULL) | |
655 | listtop = area->opaque_lsa_self; | |
656 | else | |
657 | zlog_warn ("Type-10 Opaque-LSA: Reference to AREA is missing?"); | |
658 | break; | |
659 | case OSPF_OPAQUE_AS_LSA: | |
020709f9 | 660 | top = ospf_lookup (); |
68980084 | 661 | if ((area = lsa->area) != NULL && (top = area->ospf) == NULL) |
718e3744 | 662 | { |
663 | zlog_warn ("Type-11 Opaque-LSA: Reference to OSPF is missing?"); | |
664 | break; /* Unlikely to happen. */ | |
665 | } | |
666 | listtop = top->opaque_lsa_self; | |
667 | break; | |
668 | default: | |
669 | zlog_warn ("lookup_opaque_info_by_type: Unexpected LSA-type(%u)", lsa->data->type); | |
670 | break; | |
671 | } | |
672 | ||
673 | if (listtop != NULL) | |
1eb8ef25 | 674 | for (ALL_LIST_ELEMENTS (listtop, node, nnode, oipt)) |
87d6f87a | 675 | if (oipt->opaque_type == key) |
676 | return oipt; | |
718e3744 | 677 | |
678 | return NULL; | |
679 | } | |
680 | ||
681 | static struct opaque_info_per_id * | |
682 | register_opaque_info_per_id (struct opaque_info_per_type *oipt, | |
683 | struct ospf_lsa *new) | |
684 | { | |
685 | struct opaque_info_per_id *oipi; | |
686 | ||
687 | if ((oipi = XCALLOC (MTYPE_OPAQUE_INFO_PER_ID, | |
688 | sizeof (struct opaque_info_per_id))) == NULL) | |
689 | { | |
6099b3b5 | 690 | zlog_warn ("register_opaque_info_per_id: XMALLOC: %s", safe_strerror (errno)); |
718e3744 | 691 | goto out; |
692 | } | |
693 | oipi->opaque_id = GET_OPAQUE_ID (ntohl (new->data->id.s_addr)); | |
694 | oipi->t_opaque_lsa_self = NULL; | |
695 | oipi->opqctl_type = oipt; | |
696 | oipi->lsa = ospf_lsa_lock (new); | |
697 | ||
698 | listnode_add (oipt->id_list, oipi); | |
699 | ||
700 | out: | |
701 | return oipi; | |
702 | } | |
703 | ||
704 | static void | |
705 | free_opaque_info_per_id (void *val) | |
706 | { | |
707 | struct opaque_info_per_id *oipi = (struct opaque_info_per_id *) val; | |
708 | ||
709 | OSPF_TIMER_OFF (oipi->t_opaque_lsa_self); | |
710 | if (oipi->lsa != NULL) | |
711 | ospf_lsa_unlock (oipi->lsa); | |
712 | XFREE (MTYPE_OPAQUE_INFO_PER_ID, oipi); | |
713 | return; | |
714 | } | |
715 | ||
716 | static struct opaque_info_per_id * | |
717 | lookup_opaque_info_by_id (struct opaque_info_per_type *oipt, | |
718 | struct ospf_lsa *lsa) | |
719 | { | |
1eb8ef25 | 720 | struct listnode *node, *nnode; |
718e3744 | 721 | struct opaque_info_per_id *oipi; |
722 | u_int32_t key = GET_OPAQUE_ID (ntohl (lsa->data->id.s_addr)); | |
723 | ||
1eb8ef25 | 724 | for (ALL_LIST_ELEMENTS (oipt->id_list, node, nnode, oipi)) |
87d6f87a | 725 | if (oipi->opaque_id == key) |
726 | return oipi; | |
718e3744 | 727 | |
728 | return NULL; | |
729 | } | |
730 | ||
731 | static struct opaque_info_per_id * | |
732 | register_opaque_lsa (struct ospf_lsa *new) | |
733 | { | |
734 | struct ospf_opaque_functab *functab; | |
735 | struct opaque_info_per_type *oipt; | |
736 | struct opaque_info_per_id *oipi = NULL; | |
737 | ||
738 | if ((functab = ospf_opaque_functab_lookup (new)) == NULL) | |
739 | goto out; | |
740 | ||
741 | if ((oipt = lookup_opaque_info_by_type (new)) == NULL | |
742 | && (oipt = register_opaque_info_per_type (functab, new)) == NULL) | |
743 | goto out; | |
744 | ||
745 | if ((oipi = register_opaque_info_per_id (oipt, new)) == NULL) | |
746 | goto out; | |
747 | ||
748 | out: | |
749 | return oipi; | |
750 | } | |
751 | ||
752 | /*------------------------------------------------------------------------* | |
753 | * Followings are (vty) configuration functions for Opaque-LSAs handling. | |
754 | *------------------------------------------------------------------------*/ | |
755 | ||
756 | DEFUN (capability_opaque, | |
757 | capability_opaque_cmd, | |
758 | "capability opaque", | |
759 | "Enable specific OSPF feature\n" | |
760 | "Opaque LSA\n") | |
761 | { | |
762 | struct ospf *ospf = (struct ospf *) vty->index; | |
763 | ||
764 | /* Turn on the "master switch" of opaque-lsa capability. */ | |
765 | if (!CHECK_FLAG (ospf->config, OSPF_OPAQUE_CAPABLE)) | |
766 | { | |
767 | if (IS_DEBUG_OSPF_EVENT) | |
2a42e285 | 768 | zlog_debug ("Opaque capability: OFF -> ON"); |
718e3744 | 769 | |
770 | SET_FLAG (ospf->config, OSPF_OPAQUE_CAPABLE); | |
771 | ospf_renegotiate_optional_capabilities (ospf); | |
772 | } | |
773 | return CMD_SUCCESS; | |
774 | } | |
775 | ||
776 | ALIAS (capability_opaque, | |
777 | ospf_opaque_capable_cmd, | |
778 | "ospf opaque-lsa", | |
779 | "OSPF specific commands\n" | |
780 | "Enable the Opaque-LSA capability (rfc2370)\n") | |
781 | ||
782 | DEFUN (no_capability_opaque, | |
783 | no_capability_opaque_cmd, | |
784 | "no capability opaque", | |
785 | NO_STR | |
786 | "Enable specific OSPF feature\n" | |
787 | "Opaque LSA\n") | |
788 | { | |
789 | struct ospf *ospf = (struct ospf *) vty->index; | |
790 | ||
791 | /* Turn off the "master switch" of opaque-lsa capability. */ | |
792 | if (CHECK_FLAG (ospf->config, OSPF_OPAQUE_CAPABLE)) | |
793 | { | |
794 | if (IS_DEBUG_OSPF_EVENT) | |
2a42e285 | 795 | zlog_debug ("Opaque capability: ON -> OFF"); |
718e3744 | 796 | |
797 | UNSET_FLAG (ospf->config, OSPF_OPAQUE_CAPABLE); | |
798 | ospf_renegotiate_optional_capabilities (ospf); | |
799 | } | |
800 | return CMD_SUCCESS; | |
801 | } | |
802 | ||
803 | ALIAS (no_capability_opaque, | |
804 | no_ospf_opaque_capable_cmd, | |
805 | "no ospf opaque-lsa", | |
806 | NO_STR | |
807 | "OSPF specific commands\n" | |
808 | "Disable the Opaque-LSA capability (rfc2370)\n") | |
809 | ||
810 | static void | |
811 | ospf_opaque_register_vty (void) | |
812 | { | |
813 | install_element (OSPF_NODE, &capability_opaque_cmd); | |
814 | install_element (OSPF_NODE, &no_capability_opaque_cmd); | |
815 | install_element (OSPF_NODE, &ospf_opaque_capable_cmd); | |
816 | install_element (OSPF_NODE, &no_ospf_opaque_capable_cmd); | |
817 | return; | |
818 | } | |
819 | ||
820 | /*------------------------------------------------------------------------* | |
821 | * Followings are collection of user-registered function callers. | |
822 | *------------------------------------------------------------------------*/ | |
823 | ||
824 | static int | |
87d6f87a | 825 | opaque_lsa_new_if_callback (struct list *funclist, struct interface *ifp) |
718e3744 | 826 | { |
1eb8ef25 | 827 | struct listnode *node, *nnode; |
718e3744 | 828 | struct ospf_opaque_functab *functab; |
829 | int rc = -1; | |
830 | ||
1eb8ef25 | 831 | for (ALL_LIST_ELEMENTS (funclist, node, nnode, functab)) |
87d6f87a | 832 | if (functab->new_if_hook != NULL) |
833 | if ((* functab->new_if_hook)(ifp) != 0) | |
834 | goto out; | |
718e3744 | 835 | rc = 0; |
836 | out: | |
837 | return rc; | |
838 | } | |
839 | ||
840 | static int | |
87d6f87a | 841 | opaque_lsa_del_if_callback (struct list *funclist, struct interface *ifp) |
718e3744 | 842 | { |
1eb8ef25 | 843 | struct listnode *node, *nnode; |
718e3744 | 844 | struct ospf_opaque_functab *functab; |
845 | int rc = -1; | |
846 | ||
1eb8ef25 | 847 | for (ALL_LIST_ELEMENTS (funclist, node, nnode, functab)) |
87d6f87a | 848 | if (functab->del_if_hook != NULL) |
849 | if ((* functab->del_if_hook)(ifp) != 0) | |
850 | goto out; | |
718e3744 | 851 | rc = 0; |
852 | out: | |
853 | return rc; | |
854 | } | |
855 | ||
856 | static void | |
87d6f87a | 857 | opaque_lsa_ism_change_callback (struct list *funclist, |
718e3744 | 858 | struct ospf_interface *oi, int old_status) |
859 | { | |
1eb8ef25 | 860 | struct listnode *node, *nnode; |
718e3744 | 861 | struct ospf_opaque_functab *functab; |
862 | ||
1eb8ef25 | 863 | for (ALL_LIST_ELEMENTS (funclist, node, nnode, functab)) |
87d6f87a | 864 | if (functab->ism_change_hook != NULL) |
865 | (* functab->ism_change_hook)(oi, old_status); | |
866 | ||
718e3744 | 867 | return; |
868 | } | |
869 | ||
870 | static void | |
87d6f87a | 871 | opaque_lsa_nsm_change_callback (struct list *funclist, |
718e3744 | 872 | struct ospf_neighbor *nbr, int old_status) |
873 | { | |
1eb8ef25 | 874 | struct listnode *node, *nnode; |
718e3744 | 875 | struct ospf_opaque_functab *functab; |
876 | ||
1eb8ef25 | 877 | for (ALL_LIST_ELEMENTS (funclist, node, nnode, functab)) |
87d6f87a | 878 | if (functab->nsm_change_hook != NULL) |
879 | (* functab->nsm_change_hook)(nbr, old_status); | |
718e3744 | 880 | return; |
881 | } | |
882 | ||
883 | static void | |
87d6f87a | 884 | opaque_lsa_config_write_router_callback (struct list *funclist, |
885 | struct vty *vty) | |
718e3744 | 886 | { |
1eb8ef25 | 887 | struct listnode *node, *nnode; |
718e3744 | 888 | struct ospf_opaque_functab *functab; |
889 | ||
1eb8ef25 | 890 | for (ALL_LIST_ELEMENTS (funclist, node, nnode, functab)) |
87d6f87a | 891 | if (functab->config_write_router != NULL) |
892 | (* functab->config_write_router)(vty); | |
718e3744 | 893 | return; |
894 | } | |
895 | ||
896 | static void | |
87d6f87a | 897 | opaque_lsa_config_write_if_callback (struct list *funclist, |
718e3744 | 898 | struct vty *vty, struct interface *ifp) |
899 | { | |
1eb8ef25 | 900 | struct listnode *node, *nnode; |
718e3744 | 901 | struct ospf_opaque_functab *functab; |
902 | ||
1eb8ef25 | 903 | for (ALL_LIST_ELEMENTS (funclist, node, nnode, functab)) |
87d6f87a | 904 | if (functab->config_write_if != NULL) |
905 | (* functab->config_write_if)(vty, ifp); | |
718e3744 | 906 | return; |
907 | } | |
908 | ||
909 | static void | |
87d6f87a | 910 | opaque_lsa_config_write_debug_callback (struct list *funclist, struct vty *vty) |
718e3744 | 911 | { |
1eb8ef25 | 912 | struct listnode *node, *nnode; |
718e3744 | 913 | struct ospf_opaque_functab *functab; |
914 | ||
1eb8ef25 | 915 | for (ALL_LIST_ELEMENTS (funclist, node, nnode, functab)) |
87d6f87a | 916 | if (functab->config_write_debug != NULL) |
917 | (* functab->config_write_debug)(vty); | |
718e3744 | 918 | return; |
919 | } | |
920 | ||
921 | static int | |
87d6f87a | 922 | opaque_lsa_originate_callback (struct list *funclist, void *lsa_type_dependent) |
718e3744 | 923 | { |
1eb8ef25 | 924 | struct listnode *node, *nnode; |
718e3744 | 925 | struct ospf_opaque_functab *functab; |
926 | int rc = -1; | |
927 | ||
1eb8ef25 | 928 | for (ALL_LIST_ELEMENTS (funclist, node, nnode, functab)) |
87d6f87a | 929 | if (functab->lsa_originator != NULL) |
930 | if ((* functab->lsa_originator)(lsa_type_dependent) != 0) | |
931 | goto out; | |
718e3744 | 932 | rc = 0; |
933 | out: | |
934 | return rc; | |
935 | } | |
936 | ||
937 | static int | |
87d6f87a | 938 | new_lsa_callback (struct list *funclist, struct ospf_lsa *lsa) |
718e3744 | 939 | { |
1eb8ef25 | 940 | struct listnode *node, *nnode; |
718e3744 | 941 | struct ospf_opaque_functab *functab; |
942 | int rc = -1; | |
943 | ||
944 | /* This function handles ALL types of LSAs, not only opaque ones. */ | |
1eb8ef25 | 945 | for (ALL_LIST_ELEMENTS (funclist, node, nnode, functab)) |
87d6f87a | 946 | if (functab->new_lsa_hook != NULL) |
947 | if ((* functab->new_lsa_hook)(lsa) != 0) | |
948 | goto out; | |
718e3744 | 949 | rc = 0; |
950 | out: | |
951 | return rc; | |
952 | } | |
953 | ||
954 | static int | |
87d6f87a | 955 | del_lsa_callback (struct list *funclist, struct ospf_lsa *lsa) |
718e3744 | 956 | { |
1eb8ef25 | 957 | struct listnode *node, *nnode; |
718e3744 | 958 | struct ospf_opaque_functab *functab; |
959 | int rc = -1; | |
960 | ||
961 | /* This function handles ALL types of LSAs, not only opaque ones. */ | |
1eb8ef25 | 962 | for (ALL_LIST_ELEMENTS (funclist, node, nnode, functab)) |
87d6f87a | 963 | if (functab->del_lsa_hook != NULL) |
964 | if ((* functab->del_lsa_hook)(lsa) != 0) | |
965 | goto out; | |
718e3744 | 966 | rc = 0; |
967 | out: | |
968 | return rc; | |
969 | } | |
970 | ||
971 | /*------------------------------------------------------------------------* | |
972 | * Followings are glue functions to call Opaque-LSA specific processing. | |
973 | *------------------------------------------------------------------------*/ | |
974 | ||
975 | int | |
976 | ospf_opaque_new_if (struct interface *ifp) | |
977 | { | |
87d6f87a | 978 | struct list *funclist; |
718e3744 | 979 | int rc = -1; |
980 | ||
09e4efdc | 981 | funclist = ospf_opaque_wildcard_funclist; |
982 | if (opaque_lsa_new_if_callback (funclist, ifp) != 0) | |
983 | goto out; | |
984 | ||
718e3744 | 985 | funclist = ospf_opaque_type9_funclist; |
986 | if (opaque_lsa_new_if_callback (funclist, ifp) != 0) | |
987 | goto out; | |
988 | ||
989 | funclist = ospf_opaque_type10_funclist; | |
990 | if (opaque_lsa_new_if_callback (funclist, ifp) != 0) | |
991 | goto out; | |
992 | ||
993 | funclist = ospf_opaque_type11_funclist; | |
994 | if (opaque_lsa_new_if_callback (funclist, ifp) != 0) | |
995 | goto out; | |
996 | ||
997 | rc = 0; | |
998 | out: | |
999 | return rc; | |
1000 | } | |
1001 | ||
1002 | int | |
1003 | ospf_opaque_del_if (struct interface *ifp) | |
1004 | { | |
87d6f87a | 1005 | struct list *funclist; |
718e3744 | 1006 | int rc = -1; |
1007 | ||
09e4efdc | 1008 | funclist = ospf_opaque_wildcard_funclist; |
1009 | if (opaque_lsa_del_if_callback (funclist, ifp) != 0) | |
1010 | goto out; | |
1011 | ||
718e3744 | 1012 | funclist = ospf_opaque_type9_funclist; |
1013 | if (opaque_lsa_del_if_callback (funclist, ifp) != 0) | |
1014 | goto out; | |
1015 | ||
1016 | funclist = ospf_opaque_type10_funclist; | |
1017 | if (opaque_lsa_del_if_callback (funclist, ifp) != 0) | |
1018 | goto out; | |
1019 | ||
1020 | funclist = ospf_opaque_type11_funclist; | |
1021 | if (opaque_lsa_del_if_callback (funclist, ifp) != 0) | |
1022 | goto out; | |
1023 | ||
1024 | rc = 0; | |
1025 | out: | |
1026 | return rc; | |
1027 | } | |
1028 | ||
1029 | void | |
1030 | ospf_opaque_ism_change (struct ospf_interface *oi, int old_status) | |
1031 | { | |
87d6f87a | 1032 | struct list *funclist; |
718e3744 | 1033 | |
09e4efdc | 1034 | funclist = ospf_opaque_wildcard_funclist; |
1035 | opaque_lsa_ism_change_callback (funclist, oi, old_status); | |
1036 | ||
718e3744 | 1037 | funclist = ospf_opaque_type9_funclist; |
1038 | opaque_lsa_ism_change_callback (funclist, oi, old_status); | |
1039 | ||
1040 | funclist = ospf_opaque_type10_funclist; | |
1041 | opaque_lsa_ism_change_callback (funclist, oi, old_status); | |
1042 | ||
1043 | funclist = ospf_opaque_type11_funclist; | |
1044 | opaque_lsa_ism_change_callback (funclist, oi, old_status); | |
1045 | ||
1046 | return; | |
1047 | } | |
1048 | ||
1049 | void | |
1050 | ospf_opaque_nsm_change (struct ospf_neighbor *nbr, int old_state) | |
1051 | { | |
1052 | struct ospf *top; | |
87d6f87a | 1053 | struct list *funclist; |
718e3744 | 1054 | |
1055 | if ((top = oi_to_top (nbr->oi)) == NULL) | |
1056 | goto out; | |
1057 | ||
1058 | if (old_state != NSM_Full && nbr->state == NSM_Full) | |
1059 | { | |
1060 | if (CHECK_FLAG (nbr->options, OSPF_OPTION_O)) | |
1061 | { | |
1062 | if (! CHECK_FLAG (top->opaque, OPAQUE_OPERATION_READY_BIT)) | |
1063 | { | |
1064 | if (IS_DEBUG_OSPF_EVENT) | |
2a42e285 | 1065 | zlog_debug ("Opaque-LSA: Now get operational!"); |
718e3744 | 1066 | |
1067 | SET_FLAG (top->opaque, OPAQUE_OPERATION_READY_BIT); | |
1068 | } | |
1069 | ||
1070 | ospf_opaque_lsa_originate_schedule (nbr->oi, NULL); | |
1071 | } | |
1072 | } | |
1073 | else | |
1074 | if (old_state == NSM_Full && nbr->state != NSM_Full) | |
1075 | { | |
1076 | #ifdef NOTYET | |
1077 | /* | |
1078 | * If no more opaque-capable full-state neighbor remains in the | |
1079 | * flooding scope which corresponds to Opaque-LSA type, periodic | |
1080 | * LS flooding should be stopped. | |
1081 | */ | |
1082 | #endif /* NOTYET */ | |
1083 | ; | |
1084 | } | |
1085 | ||
09e4efdc | 1086 | funclist = ospf_opaque_wildcard_funclist; |
1087 | opaque_lsa_nsm_change_callback (funclist, nbr, old_state); | |
1088 | ||
718e3744 | 1089 | funclist = ospf_opaque_type9_funclist; |
1090 | opaque_lsa_nsm_change_callback (funclist, nbr, old_state); | |
1091 | ||
1092 | funclist = ospf_opaque_type10_funclist; | |
1093 | opaque_lsa_nsm_change_callback (funclist, nbr, old_state); | |
1094 | ||
1095 | funclist = ospf_opaque_type11_funclist; | |
1096 | opaque_lsa_nsm_change_callback (funclist, nbr, old_state); | |
1097 | ||
1098 | out: | |
1099 | return; | |
1100 | } | |
1101 | ||
1102 | void | |
1103 | ospf_opaque_config_write_router (struct vty *vty, struct ospf *ospf) | |
1104 | { | |
87d6f87a | 1105 | struct list *funclist; |
718e3744 | 1106 | |
1107 | if (CHECK_FLAG (ospf->config, OSPF_OPAQUE_CAPABLE)) | |
1108 | vty_out (vty, " capability opaque%s", VTY_NEWLINE); | |
1109 | ||
09e4efdc | 1110 | funclist = ospf_opaque_wildcard_funclist; |
1111 | opaque_lsa_config_write_router_callback (funclist, vty); | |
1112 | ||
718e3744 | 1113 | funclist = ospf_opaque_type9_funclist; |
1114 | opaque_lsa_config_write_router_callback (funclist, vty); | |
1115 | ||
1116 | funclist = ospf_opaque_type10_funclist; | |
1117 | opaque_lsa_config_write_router_callback (funclist, vty); | |
1118 | ||
1119 | funclist = ospf_opaque_type11_funclist; | |
1120 | opaque_lsa_config_write_router_callback (funclist, vty); | |
1121 | ||
1122 | return; | |
1123 | } | |
1124 | ||
1125 | void | |
1126 | ospf_opaque_config_write_if (struct vty *vty, struct interface *ifp) | |
1127 | { | |
87d6f87a | 1128 | struct list *funclist; |
718e3744 | 1129 | |
09e4efdc | 1130 | funclist = ospf_opaque_wildcard_funclist; |
1131 | opaque_lsa_config_write_if_callback (funclist, vty, ifp); | |
1132 | ||
718e3744 | 1133 | funclist = ospf_opaque_type9_funclist; |
1134 | opaque_lsa_config_write_if_callback (funclist, vty, ifp); | |
1135 | ||
1136 | funclist = ospf_opaque_type10_funclist; | |
1137 | opaque_lsa_config_write_if_callback (funclist, vty, ifp); | |
1138 | ||
1139 | funclist = ospf_opaque_type11_funclist; | |
1140 | opaque_lsa_config_write_if_callback (funclist, vty, ifp); | |
1141 | ||
1142 | return; | |
1143 | } | |
1144 | ||
1145 | void | |
1146 | ospf_opaque_config_write_debug (struct vty *vty) | |
1147 | { | |
87d6f87a | 1148 | struct list *funclist; |
718e3744 | 1149 | |
09e4efdc | 1150 | funclist = ospf_opaque_wildcard_funclist; |
1151 | opaque_lsa_config_write_debug_callback (funclist, vty); | |
1152 | ||
718e3744 | 1153 | funclist = ospf_opaque_type9_funclist; |
1154 | opaque_lsa_config_write_debug_callback (funclist, vty); | |
1155 | ||
1156 | funclist = ospf_opaque_type10_funclist; | |
1157 | opaque_lsa_config_write_debug_callback (funclist, vty); | |
1158 | ||
1159 | funclist = ospf_opaque_type11_funclist; | |
1160 | opaque_lsa_config_write_debug_callback (funclist, vty); | |
1161 | ||
1162 | return; | |
1163 | } | |
1164 | ||
1165 | void | |
1166 | show_opaque_info_detail (struct vty *vty, struct ospf_lsa *lsa) | |
1167 | { | |
1168 | struct lsa_header *lsah = (struct lsa_header *) lsa->data; | |
1169 | u_int32_t lsid = ntohl (lsah->id.s_addr); | |
1170 | u_char opaque_type = GET_OPAQUE_TYPE (lsid); | |
1171 | u_int32_t opaque_id = GET_OPAQUE_ID (lsid); | |
1172 | struct ospf_opaque_functab *functab; | |
1173 | ||
1174 | /* Switch output functionality by vty address. */ | |
1175 | if (vty != NULL) | |
1176 | { | |
020709f9 | 1177 | vty_out (vty, " Opaque-Type %u (%s)%s", opaque_type, |
1178 | ospf_opaque_type_name (opaque_type), VTY_NEWLINE); | |
718e3744 | 1179 | vty_out (vty, " Opaque-ID 0x%x%s", opaque_id, VTY_NEWLINE); |
1180 | ||
1181 | vty_out (vty, " Opaque-Info: %u octets of data%s%s", | |
1182 | ntohs (lsah->length) - OSPF_LSA_HEADER_SIZE, | |
1183 | VALID_OPAQUE_INFO_LEN(lsah) ? "" : "(Invalid length?)", | |
1184 | VTY_NEWLINE); | |
1185 | } | |
1186 | else | |
1187 | { | |
2a42e285 | 1188 | zlog_debug (" Opaque-Type %u (%s)", opaque_type, |
020709f9 | 1189 | ospf_opaque_type_name (opaque_type)); |
2a42e285 | 1190 | zlog_debug (" Opaque-ID 0x%x", opaque_id); |
718e3744 | 1191 | |
2a42e285 | 1192 | zlog_debug (" Opaque-Info: %u octets of data%s", |
718e3744 | 1193 | ntohs (lsah->length) - OSPF_LSA_HEADER_SIZE, |
1194 | VALID_OPAQUE_INFO_LEN(lsah) ? "" : "(Invalid length?)"); | |
1195 | } | |
1196 | ||
1197 | /* Call individual output functions. */ | |
1198 | if ((functab = ospf_opaque_functab_lookup (lsa)) != NULL) | |
1199 | if (functab->show_opaque_info != NULL) | |
1200 | (* functab->show_opaque_info)(vty, lsa); | |
1201 | ||
1202 | return; | |
1203 | } | |
1204 | ||
1205 | void | |
1206 | ospf_opaque_lsa_dump (struct stream *s, u_int16_t length) | |
1207 | { | |
1208 | struct ospf_lsa lsa; | |
1209 | ||
1210 | lsa.data = (struct lsa_header *) STREAM_PNT (s); | |
1211 | show_opaque_info_detail (NULL, &lsa); | |
1212 | return; | |
1213 | } | |
1214 | ||
1215 | static int | |
1216 | ospf_opaque_lsa_install_hook (struct ospf_lsa *lsa) | |
1217 | { | |
87d6f87a | 1218 | struct list *funclist; |
718e3744 | 1219 | int rc = -1; |
1220 | ||
1221 | /* | |
1222 | * Some Opaque-LSA user may want to monitor every LSA installation | |
1223 | * into the LSDB, regardless with target LSA type. | |
1224 | */ | |
09e4efdc | 1225 | funclist = ospf_opaque_wildcard_funclist; |
1226 | if (new_lsa_callback (funclist, lsa) != 0) | |
1227 | goto out; | |
1228 | ||
718e3744 | 1229 | funclist = ospf_opaque_type9_funclist; |
1230 | if (new_lsa_callback (funclist, lsa) != 0) | |
1231 | goto out; | |
1232 | ||
1233 | funclist = ospf_opaque_type10_funclist; | |
1234 | if (new_lsa_callback (funclist, lsa) != 0) | |
1235 | goto out; | |
1236 | ||
1237 | funclist = ospf_opaque_type11_funclist; | |
1238 | if (new_lsa_callback (funclist, lsa) != 0) | |
1239 | goto out; | |
1240 | ||
1241 | rc = 0; | |
1242 | out: | |
1243 | return rc; | |
1244 | } | |
1245 | ||
1246 | static int | |
1247 | ospf_opaque_lsa_delete_hook (struct ospf_lsa *lsa) | |
1248 | { | |
87d6f87a | 1249 | struct list *funclist; |
718e3744 | 1250 | int rc = -1; |
1251 | ||
1252 | /* | |
1253 | * Some Opaque-LSA user may want to monitor every LSA deletion | |
1254 | * from the LSDB, regardless with target LSA type. | |
1255 | */ | |
09e4efdc | 1256 | funclist = ospf_opaque_wildcard_funclist; |
1257 | if (del_lsa_callback (funclist, lsa) != 0) | |
1258 | goto out; | |
1259 | ||
718e3744 | 1260 | funclist = ospf_opaque_type9_funclist; |
1261 | if (del_lsa_callback (funclist, lsa) != 0) | |
1262 | goto out; | |
1263 | ||
1264 | funclist = ospf_opaque_type10_funclist; | |
1265 | if (del_lsa_callback (funclist, lsa) != 0) | |
1266 | goto out; | |
1267 | ||
1268 | funclist = ospf_opaque_type11_funclist; | |
1269 | if (del_lsa_callback (funclist, lsa) != 0) | |
1270 | goto out; | |
1271 | ||
1272 | rc = 0; | |
1273 | out: | |
1274 | return rc; | |
1275 | } | |
1276 | ||
1277 | /*------------------------------------------------------------------------* | |
1278 | * Followings are Opaque-LSA origination/refresh management functions. | |
1279 | *------------------------------------------------------------------------*/ | |
1280 | ||
1281 | static int ospf_opaque_type9_lsa_originate (struct thread *t); | |
1282 | static int ospf_opaque_type10_lsa_originate (struct thread *t); | |
1283 | static int ospf_opaque_type11_lsa_originate (struct thread *t); | |
87d6f87a | 1284 | static void ospf_opaque_lsa_reoriginate_resume (struct list *listtop, void *arg); |
718e3744 | 1285 | |
1286 | void | |
1287 | ospf_opaque_lsa_originate_schedule (struct ospf_interface *oi, int *delay0) | |
1288 | { | |
1289 | struct ospf *top; | |
1290 | struct ospf_area *area; | |
1eb8ef25 | 1291 | struct listnode *node, *nnode; |
718e3744 | 1292 | struct opaque_info_per_type *oipt; |
1293 | int delay = 0; | |
1294 | ||
1295 | if ((top = oi_to_top (oi)) == NULL || (area = oi->area) == NULL) | |
1296 | { | |
1297 | zlog_warn ("ospf_opaque_lsa_originate_schedule: Invalid argument?"); | |
1298 | goto out; | |
1299 | } | |
1300 | ||
1301 | /* It may not a right time to schedule origination now. */ | |
1302 | if (! CHECK_FLAG (top->opaque, OPAQUE_OPERATION_READY_BIT)) | |
1303 | { | |
1304 | if (IS_DEBUG_OSPF_EVENT) | |
2a42e285 | 1305 | zlog_debug ("ospf_opaque_lsa_originate_schedule: Not operational."); |
718e3744 | 1306 | goto out; /* This is not an error. */ |
1307 | } | |
1308 | if (IS_OPAQUE_LSA_ORIGINATION_BLOCKED (top->opaque)) | |
1309 | { | |
1310 | if (IS_DEBUG_OSPF_EVENT) | |
2a42e285 | 1311 | zlog_debug ("ospf_opaque_lsa_originate_schedule: Under blockade."); |
718e3744 | 1312 | goto out; /* This is not an error, too. */ |
1313 | } | |
1314 | ||
1315 | if (delay0 != NULL) | |
1316 | delay = *delay0; | |
1317 | ||
1318 | /* | |
1319 | * There might be some entries that have been waiting for triggering | |
1320 | * of per opaque-type re-origination get resumed. | |
1321 | */ | |
1322 | ospf_opaque_lsa_reoriginate_resume ( oi->opaque_lsa_self, (void *) oi); | |
1323 | ospf_opaque_lsa_reoriginate_resume (area->opaque_lsa_self, (void *) area); | |
1324 | ospf_opaque_lsa_reoriginate_resume ( top->opaque_lsa_self, (void *) top); | |
1325 | ||
1326 | /* | |
1327 | * Now, schedule origination of all Opaque-LSAs per opaque-type. | |
1328 | */ | |
1329 | if (! list_isempty (ospf_opaque_type9_funclist) | |
1330 | && list_isempty (oi->opaque_lsa_self) | |
1331 | && oi->t_opaque_lsa_self == NULL) | |
1332 | { | |
1333 | if (IS_DEBUG_OSPF_EVENT) | |
2a42e285 | 1334 | zlog_debug ("Schedule Type-9 Opaque-LSA origination in %d sec later.", delay); |
718e3744 | 1335 | oi->t_opaque_lsa_self = |
1336 | thread_add_timer (master, ospf_opaque_type9_lsa_originate, oi, delay); | |
1337 | delay += OSPF_MIN_LS_INTERVAL; | |
1338 | } | |
1339 | ||
1340 | if (! list_isempty (ospf_opaque_type10_funclist) | |
1341 | && list_isempty (area->opaque_lsa_self) | |
1342 | && area->t_opaque_lsa_self == NULL) | |
1343 | { | |
1344 | /* | |
1345 | * One AREA may contain multiple OIs, but above 2nd and 3rd | |
1346 | * conditions prevent from scheduling the originate function | |
1347 | * again and again. | |
1348 | */ | |
1349 | if (IS_DEBUG_OSPF_EVENT) | |
2a42e285 | 1350 | zlog_debug ("Schedule Type-10 Opaque-LSA origination in %d sec later.", delay); |
718e3744 | 1351 | area->t_opaque_lsa_self = |
1352 | thread_add_timer (master, ospf_opaque_type10_lsa_originate, | |
1353 | area, delay); | |
1354 | delay += OSPF_MIN_LS_INTERVAL; | |
1355 | } | |
1356 | ||
1357 | if (! list_isempty (ospf_opaque_type11_funclist) | |
1358 | && list_isempty (top->opaque_lsa_self) | |
1359 | && top->t_opaque_lsa_self == NULL) | |
1360 | { | |
1361 | /* | |
1362 | * One OSPF may contain multiple AREAs, but above 2nd and 3rd | |
1363 | * conditions prevent from scheduling the originate function | |
1364 | * again and again. | |
1365 | */ | |
1366 | if (IS_DEBUG_OSPF_EVENT) | |
2a42e285 | 1367 | zlog_debug ("Schedule Type-11 Opaque-LSA origination in %d sec later.", delay); |
718e3744 | 1368 | top->t_opaque_lsa_self = |
1369 | thread_add_timer (master, ospf_opaque_type11_lsa_originate, | |
1370 | top, delay); | |
1371 | delay += OSPF_MIN_LS_INTERVAL; | |
1372 | } | |
1373 | ||
1374 | /* | |
1375 | * Following section treats a special situation that this node's | |
1376 | * opaque capability has changed as "ON -> OFF -> ON". | |
1377 | */ | |
1378 | if (! list_isempty (ospf_opaque_type9_funclist) | |
1379 | && ! list_isempty (oi->opaque_lsa_self)) | |
1380 | { | |
1eb8ef25 | 1381 | for (ALL_LIST_ELEMENTS (oi->opaque_lsa_self, node, nnode, oipt)) |
718e3744 | 1382 | { |
0d85b995 | 1383 | /* |
1384 | * removed the test for | |
1385 | * (! list_isempty (oipt->id_list)) * Handler is already active. * | |
1386 | * because opaque cababilities ON -> OFF -> ON result in list_isempty (oipt->id_list) | |
1387 | * not being empty. | |
1388 | */ | |
1eb8ef25 | 1389 | if (oipt->t_opaque_lsa_self != NULL /* Waiting for a thread call. */ |
1390 | || oipt->status == PROC_SUSPEND) /* Cannot originate now. */ | |
718e3744 | 1391 | continue; |
1392 | ||
1393 | ospf_opaque_lsa_reoriginate_schedule ((void *) oi, | |
1394 | OSPF_OPAQUE_LINK_LSA, oipt->opaque_type); | |
1395 | } | |
1396 | } | |
1397 | ||
1398 | if (! list_isempty (ospf_opaque_type10_funclist) | |
1399 | && ! list_isempty (area->opaque_lsa_self)) | |
1400 | { | |
1eb8ef25 | 1401 | for (ALL_LIST_ELEMENTS (area->opaque_lsa_self, node, nnode, oipt)) |
718e3744 | 1402 | { |
0d85b995 | 1403 | /* |
1404 | * removed the test for | |
1405 | * (! list_isempty (oipt->id_list)) * Handler is already active. * | |
1406 | * because opaque cababilities ON -> OFF -> ON result in list_isempty (oipt->id_list) | |
1407 | * not being empty. | |
1408 | */ | |
1eb8ef25 | 1409 | if (oipt->t_opaque_lsa_self != NULL /* Waiting for a thread call. */ |
1410 | || oipt->status == PROC_SUSPEND) /* Cannot originate now. */ | |
718e3744 | 1411 | continue; |
1412 | ||
1413 | ospf_opaque_lsa_reoriginate_schedule ((void *) area, | |
1414 | OSPF_OPAQUE_AREA_LSA, oipt->opaque_type); | |
1415 | } | |
1416 | } | |
1417 | ||
1418 | if (! list_isempty (ospf_opaque_type11_funclist) | |
1419 | && ! list_isempty (top->opaque_lsa_self)) | |
1420 | { | |
1eb8ef25 | 1421 | for (ALL_LIST_ELEMENTS (top->opaque_lsa_self, node, nnode, oipt)) |
718e3744 | 1422 | { |
0d85b995 | 1423 | /* |
1424 | * removed the test for | |
1425 | * (! list_isempty (oipt->id_list)) * Handler is already active. * | |
1426 | * because opaque cababilities ON -> OFF -> ON result in list_isempty (oipt->id_list) | |
1427 | * not being empty. | |
1428 | */ | |
1eb8ef25 | 1429 | if (oipt->t_opaque_lsa_self != NULL /* Waiting for a thread call. */ |
1430 | || oipt->status == PROC_SUSPEND) /* Cannot originate now. */ | |
718e3744 | 1431 | continue; |
1432 | ||
1433 | ospf_opaque_lsa_reoriginate_schedule ((void *) top, | |
1434 | OSPF_OPAQUE_AS_LSA, oipt->opaque_type); | |
1435 | } | |
1436 | } | |
1437 | ||
1438 | if (delay0 != NULL) | |
1439 | *delay0 = delay; | |
1440 | ||
1441 | out: | |
1442 | return; | |
1443 | } | |
1444 | ||
1445 | static int | |
1446 | ospf_opaque_type9_lsa_originate (struct thread *t) | |
1447 | { | |
1448 | struct ospf_interface *oi; | |
1449 | int rc; | |
1450 | ||
1451 | oi = THREAD_ARG (t); | |
1452 | oi->t_opaque_lsa_self = NULL; | |
1453 | ||
1454 | if (IS_DEBUG_OSPF_EVENT) | |
2a42e285 | 1455 | zlog_debug ("Timer[Type9-LSA]: Originate Opaque-LSAs for OI %s", |
718e3744 | 1456 | IF_NAME (oi)); |
1457 | ||
1458 | rc = opaque_lsa_originate_callback (ospf_opaque_type9_funclist, oi); | |
1459 | ||
1460 | return rc; | |
1461 | } | |
1462 | ||
1463 | static int | |
1464 | ospf_opaque_type10_lsa_originate (struct thread *t) | |
1465 | { | |
1466 | struct ospf_area *area; | |
1467 | int rc; | |
1468 | ||
1469 | area = THREAD_ARG (t); | |
1470 | area->t_opaque_lsa_self = NULL; | |
1471 | ||
1472 | if (IS_DEBUG_OSPF_EVENT) | |
2a42e285 | 1473 | zlog_debug ("Timer[Type10-LSA]: Originate Opaque-LSAs for Area %s", |
718e3744 | 1474 | inet_ntoa (area->area_id)); |
1475 | ||
1476 | rc = opaque_lsa_originate_callback (ospf_opaque_type10_funclist, area); | |
1477 | ||
1478 | return rc; | |
1479 | } | |
1480 | ||
1481 | static int | |
1482 | ospf_opaque_type11_lsa_originate (struct thread *t) | |
1483 | { | |
1484 | struct ospf *top; | |
1485 | int rc; | |
1486 | ||
1487 | top = THREAD_ARG (t); | |
1488 | top->t_opaque_lsa_self = NULL; | |
1489 | ||
1490 | if (IS_DEBUG_OSPF_EVENT) | |
2a42e285 | 1491 | zlog_debug ("Timer[Type11-LSA]: Originate AS-External Opaque-LSAs"); |
718e3744 | 1492 | |
1493 | rc = opaque_lsa_originate_callback (ospf_opaque_type11_funclist, top); | |
1494 | ||
1495 | return rc; | |
1496 | } | |
1497 | ||
1498 | static void | |
87d6f87a | 1499 | ospf_opaque_lsa_reoriginate_resume (struct list *listtop, void *arg) |
718e3744 | 1500 | { |
1eb8ef25 | 1501 | struct listnode *node, *nnode; |
718e3744 | 1502 | struct opaque_info_per_type *oipt; |
1503 | struct ospf_opaque_functab *functab; | |
1504 | ||
1505 | if (listtop == NULL) | |
1506 | goto out; | |
1507 | ||
1508 | /* | |
1509 | * Pickup oipt entries those which in SUSPEND status, and give | |
1510 | * them a chance to start re-origination now. | |
1511 | */ | |
1eb8ef25 | 1512 | for (ALL_LIST_ELEMENTS (listtop, node, nnode, oipt)) |
718e3744 | 1513 | { |
87d6f87a | 1514 | if (oipt->status != PROC_SUSPEND) |
718e3744 | 1515 | continue; |
1516 | ||
1517 | oipt->status = PROC_NORMAL; | |
1518 | ||
1519 | if ((functab = oipt->functab) == NULL | |
87d6f87a | 1520 | || functab->lsa_originator == NULL) |
718e3744 | 1521 | continue; |
1522 | ||
1523 | if ((* functab->lsa_originator)(arg) != 0) | |
1524 | { | |
1525 | zlog_warn ("ospf_opaque_lsa_reoriginate_resume: Failed (opaque-type=%u)", oipt->opaque_type); | |
1526 | continue; | |
1527 | } | |
1528 | } | |
1529 | ||
1530 | out: | |
1531 | return; | |
1532 | } | |
1533 | ||
1534 | struct ospf_lsa * | |
1535 | ospf_opaque_lsa_install (struct ospf_lsa *lsa, int rt_recalc) | |
1536 | { | |
1537 | struct ospf_lsa *new = NULL; | |
1538 | struct opaque_info_per_type *oipt; | |
1539 | struct opaque_info_per_id *oipi; | |
1540 | struct ospf *top; | |
1541 | ||
1542 | /* Don't take "rt_recalc" into consideration for now. *//* XXX */ | |
1543 | ||
1544 | if (! IS_LSA_SELF (lsa)) | |
1545 | { | |
1546 | new = lsa; /* Don't touch this LSA. */ | |
1547 | goto out; | |
1548 | } | |
1549 | ||
1550 | if (IS_DEBUG_OSPF (lsa, LSA_INSTALL)) | |
2a42e285 | 1551 | zlog_debug ("Install Type-%u Opaque-LSA: [opaque-type=%u, opaque-id=%x]", lsa->data->type, GET_OPAQUE_TYPE (ntohl (lsa->data->id.s_addr)), GET_OPAQUE_ID (ntohl (lsa->data->id.s_addr))); |
718e3744 | 1552 | |
1553 | /* Replace the existing lsa with the new one. */ | |
1554 | if ((oipt = lookup_opaque_info_by_type (lsa)) != NULL | |
87d6f87a | 1555 | && (oipi = lookup_opaque_info_by_id (oipt, lsa)) != NULL) |
718e3744 | 1556 | { |
1557 | ospf_lsa_unlock (oipi->lsa); | |
1558 | oipi->lsa = ospf_lsa_lock (lsa); | |
1559 | } | |
1560 | /* Register the new lsa entry and get its control info. */ | |
1561 | else | |
1562 | if ((oipi = register_opaque_lsa (lsa)) == NULL) | |
1563 | { | |
1564 | zlog_warn ("ospf_opaque_lsa_install: register_opaque_lsa() ?"); | |
1565 | goto out; | |
1566 | } | |
1567 | ||
1568 | /* | |
1569 | * Make use of a common mechanism (ospf_lsa_refresh_walker) | |
1570 | * for periodic refresh of self-originated Opaque-LSAs. | |
1571 | */ | |
1572 | switch (lsa->data->type) | |
1573 | { | |
1574 | case OSPF_OPAQUE_LINK_LSA: | |
09e4efdc | 1575 | if ((top = oi_to_top (lsa->oi)) == NULL) |
1576 | { | |
1577 | /* Above conditions must have passed. */ | |
1578 | zlog_warn ("ospf_opaque_lsa_install: Sonmething wrong?"); | |
1579 | goto out; | |
1580 | } | |
1581 | break; | |
718e3744 | 1582 | case OSPF_OPAQUE_AREA_LSA: |
68980084 | 1583 | if (lsa->area == NULL || (top = lsa->area->ospf) == NULL) |
718e3744 | 1584 | { |
1585 | /* Above conditions must have passed. */ | |
1586 | zlog_warn ("ospf_opaque_lsa_install: Sonmething wrong?"); | |
1587 | goto out; | |
1588 | } | |
1589 | break; | |
1590 | case OSPF_OPAQUE_AS_LSA: | |
020709f9 | 1591 | top = ospf_lookup (); |
68980084 | 1592 | if (lsa->area != NULL && (top = lsa->area->ospf) == NULL) |
718e3744 | 1593 | { |
1594 | /* Above conditions must have passed. */ | |
1595 | zlog_warn ("ospf_opaque_lsa_install: Sonmething wrong?"); | |
1596 | goto out; | |
1597 | } | |
1598 | break; | |
1599 | default: | |
1600 | zlog_warn ("ospf_opaque_lsa_install: Unexpected LSA-type(%u)", lsa->data->type); | |
1601 | goto out; | |
1602 | } | |
1603 | ||
1604 | ospf_refresher_register_lsa (top, lsa); | |
1605 | new = lsa; | |
1606 | ||
1607 | out: | |
1608 | return new; | |
1609 | } | |
1610 | ||
1611 | void | |
1612 | ospf_opaque_lsa_refresh (struct ospf_lsa *lsa) | |
1613 | { | |
020709f9 | 1614 | struct ospf *ospf; |
718e3744 | 1615 | struct ospf_opaque_functab *functab; |
1616 | ||
020709f9 | 1617 | ospf = ospf_lookup (); |
1618 | ||
718e3744 | 1619 | if ((functab = ospf_opaque_functab_lookup (lsa)) == NULL |
87d6f87a | 1620 | || functab->lsa_refresher == NULL) |
718e3744 | 1621 | { |
1622 | /* | |
1623 | * Though this LSA seems to have originated on this node, the | |
1624 | * handling module for this "lsa-type and opaque-type" was | |
1625 | * already deleted sometime ago. | |
1626 | * Anyway, this node still has a responsibility to flush this | |
1627 | * LSA from the routing domain. | |
1628 | */ | |
1629 | if (IS_DEBUG_OSPF_EVENT) | |
2a42e285 | 1630 | zlog_debug ("LSA[Type%d:%s]: Flush stray Opaque-LSA", lsa->data->type, inet_ntoa (lsa->data->id)); |
718e3744 | 1631 | |
1632 | lsa->data->ls_age = htons (OSPF_LSA_MAXAGE); | |
68980084 | 1633 | ospf_lsa_maxage (ospf, lsa); |
718e3744 | 1634 | } |
1635 | else | |
1636 | (* functab->lsa_refresher)(lsa); | |
1637 | ||
1638 | return; | |
1639 | } | |
1640 | ||
1641 | /*------------------------------------------------------------------------* | |
1642 | * Followings are re-origination/refresh/flush operations of Opaque-LSAs, | |
1643 | * triggered by external interventions (vty session, signaling, etc). | |
1644 | *------------------------------------------------------------------------*/ | |
1645 | ||
1646 | #define OSPF_OPAQUE_TIMER_ON(T,F,L,V) \ | |
1647 | if (!(T)) \ | |
1648 | (T) = thread_add_timer (master, (F), (L), (V)) | |
1649 | ||
1650 | static struct ospf_lsa *pseudo_lsa (struct ospf_interface *oi, struct ospf_area *area, u_char lsa_type, u_char opaque_type); | |
1651 | static int ospf_opaque_type9_lsa_reoriginate_timer (struct thread *t); | |
1652 | static int ospf_opaque_type10_lsa_reoriginate_timer (struct thread *t); | |
1653 | static int ospf_opaque_type11_lsa_reoriginate_timer (struct thread *t); | |
1654 | static int ospf_opaque_lsa_refresh_timer (struct thread *t); | |
1655 | ||
1656 | void | |
1657 | ospf_opaque_lsa_reoriginate_schedule (void *lsa_type_dependent, | |
1658 | u_char lsa_type, u_char opaque_type) | |
1659 | { | |
1660 | struct ospf *top; | |
1661 | struct ospf_area dummy, *area = NULL; | |
1662 | struct ospf_interface *oi = NULL; | |
1663 | ||
1664 | struct ospf_lsa *lsa; | |
1665 | struct opaque_info_per_type *oipt; | |
87d6f87a | 1666 | int (*func) (struct thread * t) = NULL; |
718e3744 | 1667 | int delay; |
1668 | ||
1669 | switch (lsa_type) | |
1670 | { | |
1671 | case OSPF_OPAQUE_LINK_LSA: | |
1672 | if ((oi = (struct ospf_interface *) lsa_type_dependent) == NULL) | |
1673 | { | |
87d6f87a | 1674 | zlog_warn ("ospf_opaque_lsa_reoriginate_schedule:" |
1675 | " Type-9 Opaque-LSA: Invalid parameter?"); | |
1676 | goto out; | |
718e3744 | 1677 | } |
1678 | if ((top = oi_to_top (oi)) == NULL) | |
1679 | { | |
87d6f87a | 1680 | zlog_warn ("ospf_opaque_lsa_reoriginate_schedule: OI(%s) -> TOP?", |
1681 | IF_NAME (oi)); | |
718e3744 | 1682 | goto out; |
1683 | } | |
87d6f87a | 1684 | if (!list_isempty (ospf_opaque_type9_funclist) |
1685 | && list_isempty (oi->opaque_lsa_self) | |
1686 | && oi->t_opaque_lsa_self != NULL) | |
718e3744 | 1687 | { |
87d6f87a | 1688 | zlog_warn ("Type-9 Opaque-LSA (opaque_type=%u):" |
1689 | " Common origination for OI(%s) has already started", | |
1690 | opaque_type, IF_NAME (oi)); | |
718e3744 | 1691 | goto out; |
1692 | } | |
1693 | func = ospf_opaque_type9_lsa_reoriginate_timer; | |
1694 | break; | |
1695 | case OSPF_OPAQUE_AREA_LSA: | |
1696 | if ((area = (struct ospf_area *) lsa_type_dependent) == NULL) | |
1697 | { | |
87d6f87a | 1698 | zlog_warn ("ospf_opaque_lsa_reoriginate_schedule:" |
1699 | " Type-10 Opaque-LSA: Invalid parameter?"); | |
718e3744 | 1700 | goto out; |
1701 | } | |
68980084 | 1702 | if ((top = area->ospf) == NULL) |
718e3744 | 1703 | { |
87d6f87a | 1704 | zlog_warn ("ospf_opaque_lsa_reoriginate_schedule:" |
1705 | " AREA(%s) -> TOP?", inet_ntoa (area->area_id)); | |
718e3744 | 1706 | goto out; |
1707 | } | |
87d6f87a | 1708 | if (!list_isempty (ospf_opaque_type10_funclist) |
1709 | && list_isempty (area->opaque_lsa_self) | |
1710 | && area->t_opaque_lsa_self != NULL) | |
718e3744 | 1711 | { |
87d6f87a | 1712 | zlog_warn ("Type-10 Opaque-LSA (opaque_type=%u):" |
1713 | " Common origination for AREA(%s) has already started", | |
1714 | opaque_type, inet_ntoa (area->area_id)); | |
718e3744 | 1715 | goto out; |
1716 | } | |
1717 | func = ospf_opaque_type10_lsa_reoriginate_timer; | |
1718 | break; | |
1719 | case OSPF_OPAQUE_AS_LSA: | |
1720 | if ((top = (struct ospf *) lsa_type_dependent) == NULL) | |
1721 | { | |
87d6f87a | 1722 | zlog_warn ("ospf_opaque_lsa_reoriginate_schedule:" |
1723 | " Type-11 Opaque-LSA: Invalid parameter?"); | |
1724 | goto out; | |
718e3744 | 1725 | } |
87d6f87a | 1726 | if (!list_isempty (ospf_opaque_type11_funclist) |
1727 | && list_isempty (top->opaque_lsa_self) | |
1728 | && top->t_opaque_lsa_self != NULL) | |
718e3744 | 1729 | { |
87d6f87a | 1730 | zlog_warn ("Type-11 Opaque-LSA (opaque_type=%u):" |
1731 | " Common origination has already started", opaque_type); | |
718e3744 | 1732 | goto out; |
1733 | } | |
1734 | ||
1735 | /* Fake "area" to pass "ospf" to a lookup function later. */ | |
68980084 | 1736 | dummy.ospf = top; |
718e3744 | 1737 | area = &dummy; |
1738 | ||
1739 | func = ospf_opaque_type11_lsa_reoriginate_timer; | |
1740 | break; | |
1741 | default: | |
87d6f87a | 1742 | zlog_warn ("ospf_opaque_lsa_reoriginate_schedule:" |
1743 | " Unexpected LSA-type(%u)", | |
1744 | lsa_type); | |
718e3744 | 1745 | goto out; |
1746 | } | |
1747 | ||
1748 | /* It may not a right time to schedule reorigination now. */ | |
87d6f87a | 1749 | if (!CHECK_FLAG (top->opaque, OPAQUE_OPERATION_READY_BIT)) |
718e3744 | 1750 | { |
1751 | if (IS_DEBUG_OSPF_EVENT) | |
2a42e285 | 1752 | zlog_debug ("ospf_opaque_lsa_reoriginate_schedule: Not operational."); |
87d6f87a | 1753 | goto out; /* This is not an error. */ |
718e3744 | 1754 | } |
1755 | if (IS_OPAQUE_LSA_ORIGINATION_BLOCKED (top->opaque)) | |
1756 | { | |
1757 | if (IS_DEBUG_OSPF_EVENT) | |
2a42e285 | 1758 | zlog_debug ("ospf_opaque_lsa_reoriginate_schedule: Under blockade."); |
87d6f87a | 1759 | goto out; /* This is not an error, too. */ |
718e3744 | 1760 | } |
1761 | ||
1762 | /* Generate a dummy lsa to be passed for a lookup function. */ | |
1763 | lsa = pseudo_lsa (oi, area, lsa_type, opaque_type); | |
1764 | ||
1765 | if ((oipt = lookup_opaque_info_by_type (lsa)) == NULL) | |
1766 | { | |
1767 | struct ospf_opaque_functab *functab; | |
1768 | if ((functab = ospf_opaque_functab_lookup (lsa)) == NULL) | |
1769 | { | |
87d6f87a | 1770 | zlog_warn ("ospf_opaque_lsa_reoriginate_schedule:" |
1771 | " No associated function?: lsa_type(%u)," | |
1772 | " opaque_type(%u)", | |
1773 | lsa_type, opaque_type); | |
718e3744 | 1774 | goto out; |
1775 | } | |
1776 | if ((oipt = register_opaque_info_per_type (functab, lsa)) == NULL) | |
1777 | { | |
87d6f87a | 1778 | zlog_warn ("ospf_opaque_lsa_reoriginate_schedule:" |
1779 | " Cannot get a control info?: lsa_type(%u)," | |
1780 | " opaque_type(%u)", | |
1781 | lsa_type, opaque_type); | |
718e3744 | 1782 | goto out; |
1783 | } | |
1784 | } | |
1785 | ||
1786 | if (oipt->t_opaque_lsa_self != NULL) | |
1787 | { | |
1788 | if (IS_DEBUG_OSPF_EVENT) | |
2a42e285 | 1789 | zlog_debug ("Type-%u Opaque-LSA has already scheduled to" |
87d6f87a | 1790 | " RE-ORIGINATE: [opaque-type=%u]", |
1791 | lsa_type, GET_OPAQUE_TYPE (ntohl (lsa->data->id.s_addr))); | |
718e3744 | 1792 | goto out; |
1793 | } | |
1794 | ||
1795 | /* | |
1796 | * Different from initial origination time, in which various conditions | |
1797 | * (opaque capability, neighbor status etc) are assured by caller of | |
1798 | * the originating function "ospf_opaque_lsa_originate_schedule ()", | |
1799 | * it is highly possible that these conditions might not be satisfied | |
1800 | * at the time of re-origination function is to be called. | |
1801 | */ | |
1802 | delay = OSPF_MIN_LS_INTERVAL; /* XXX */ | |
1803 | ||
1804 | if (IS_DEBUG_OSPF_EVENT) | |
2a42e285 | 1805 | zlog_debug ("Schedule Type-%u Opaque-LSA to RE-ORIGINATE in %d" |
87d6f87a | 1806 | " sec later: [opaque-type=%u]", |
1807 | lsa_type, delay, | |
1808 | GET_OPAQUE_TYPE (ntohl (lsa->data->id.s_addr))); | |
718e3744 | 1809 | |
1810 | OSPF_OPAQUE_TIMER_ON (oipt->t_opaque_lsa_self, func, oipt, delay); | |
1811 | ||
1812 | out: | |
1813 | return; | |
1814 | } | |
1815 | ||
1816 | static struct ospf_lsa * | |
1817 | pseudo_lsa (struct ospf_interface *oi, struct ospf_area *area, | |
1818 | u_char lsa_type, u_char opaque_type) | |
1819 | { | |
1820 | static struct ospf_lsa lsa = { 0 }; | |
1821 | static struct lsa_header lsah = { 0 }; | |
1822 | u_int32_t tmp; | |
1823 | ||
1824 | lsa.oi = oi; | |
1825 | lsa.area = area; | |
1826 | lsa.data = &lsah; | |
1827 | ||
1828 | lsah.type = lsa_type; | |
1829 | tmp = SET_OPAQUE_LSID (opaque_type, 0); /* Opaque-ID is unused here. */ | |
1830 | lsah.id.s_addr = htonl (tmp); | |
1831 | ||
1832 | return &lsa; | |
1833 | } | |
1834 | ||
1835 | static int | |
1836 | ospf_opaque_type9_lsa_reoriginate_timer (struct thread *t) | |
1837 | { | |
1838 | struct opaque_info_per_type *oipt; | |
1839 | struct ospf_opaque_functab *functab; | |
1840 | struct ospf *top; | |
1841 | struct ospf_interface *oi; | |
1842 | int rc = -1; | |
1843 | ||
1844 | oipt = THREAD_ARG (t); | |
1845 | oipt->t_opaque_lsa_self = NULL; | |
1846 | ||
1847 | if ((functab = oipt->functab) == NULL | |
1848 | || functab->lsa_originator == NULL) | |
1849 | { | |
1850 | zlog_warn ("ospf_opaque_type9_lsa_reoriginate_timer: No associated function?"); | |
1851 | goto out; | |
1852 | } | |
1853 | ||
1854 | oi = (struct ospf_interface *) oipt->owner; | |
1855 | if ((top = oi_to_top (oi)) == NULL) | |
1856 | { | |
1857 | zlog_warn ("ospf_opaque_type9_lsa_reoriginate_timer: Something wrong?"); | |
1858 | goto out; | |
1859 | } | |
1860 | ||
1861 | if (! CHECK_FLAG (top->config, OSPF_OPAQUE_CAPABLE) | |
1862 | || ! ospf_if_is_enable (oi) | |
68980084 | 1863 | || ospf_nbr_count_opaque_capable (oi) == 0) |
718e3744 | 1864 | { |
1865 | if (IS_DEBUG_OSPF_EVENT) | |
2a42e285 | 1866 | zlog_debug ("Suspend re-origination of Type-9 Opaque-LSAs (opaque-type=%u) for a while...", oipt->opaque_type); |
718e3744 | 1867 | |
1868 | oipt->status = PROC_SUSPEND; | |
1869 | rc = 0; | |
1870 | goto out; | |
1871 | } | |
1872 | ||
1873 | if (IS_DEBUG_OSPF_EVENT) | |
2a42e285 | 1874 | zlog_debug ("Timer[Type9-LSA]: Re-originate Opaque-LSAs (opaque-type=%u) for OI (%s)", oipt->opaque_type, IF_NAME (oi)); |
718e3744 | 1875 | |
1876 | rc = (* functab->lsa_originator)(oi); | |
1877 | out: | |
1878 | return rc; | |
1879 | } | |
1880 | ||
1881 | static int | |
1882 | ospf_opaque_type10_lsa_reoriginate_timer (struct thread *t) | |
1883 | { | |
1884 | struct opaque_info_per_type *oipt; | |
1885 | struct ospf_opaque_functab *functab; | |
1eb8ef25 | 1886 | struct listnode *node, *nnode; |
718e3744 | 1887 | struct ospf *top; |
1888 | struct ospf_area *area; | |
1889 | struct ospf_interface *oi; | |
1890 | int n, rc = -1; | |
1891 | ||
1892 | oipt = THREAD_ARG (t); | |
1893 | oipt->t_opaque_lsa_self = NULL; | |
1894 | ||
1895 | if ((functab = oipt->functab) == NULL | |
1896 | || functab->lsa_originator == NULL) | |
1897 | { | |
1898 | zlog_warn ("ospf_opaque_type10_lsa_reoriginate_timer: No associated function?"); | |
1899 | goto out; | |
1900 | } | |
1901 | ||
1902 | area = (struct ospf_area *) oipt->owner; | |
68980084 | 1903 | if (area == NULL || (top = area->ospf) == NULL) |
718e3744 | 1904 | { |
1905 | zlog_warn ("ospf_opaque_type10_lsa_reoriginate_timer: Something wrong?"); | |
1906 | goto out; | |
1907 | } | |
1908 | ||
1909 | /* There must be at least one "opaque-capable, full-state" neighbor. */ | |
1910 | n = 0; | |
1eb8ef25 | 1911 | for (ALL_LIST_ELEMENTS (area->oiflist, node, nnode, oi)) |
718e3744 | 1912 | { |
68980084 | 1913 | if ((n = ospf_nbr_count_opaque_capable (oi)) > 0) |
718e3744 | 1914 | break; |
1915 | } | |
1916 | ||
1917 | if (n == 0 || ! CHECK_FLAG (top->config, OSPF_OPAQUE_CAPABLE)) | |
1918 | { | |
1919 | if (IS_DEBUG_OSPF_EVENT) | |
2a42e285 | 1920 | zlog_debug ("Suspend re-origination of Type-10 Opaque-LSAs" |
87d6f87a | 1921 | " (opaque-type=%u) for a while...", |
1922 | oipt->opaque_type); | |
718e3744 | 1923 | |
1924 | oipt->status = PROC_SUSPEND; | |
1925 | rc = 0; | |
1926 | goto out; | |
1927 | } | |
1928 | ||
1929 | if (IS_DEBUG_OSPF_EVENT) | |
2a42e285 | 1930 | zlog_debug ("Timer[Type10-LSA]: Re-originate Opaque-LSAs" |
87d6f87a | 1931 | " (opaque-type=%u) for Area %s", |
1932 | oipt->opaque_type, inet_ntoa (area->area_id)); | |
718e3744 | 1933 | |
1934 | rc = (* functab->lsa_originator)(area); | |
1935 | out: | |
1936 | return rc; | |
1937 | } | |
1938 | ||
1939 | static int | |
1940 | ospf_opaque_type11_lsa_reoriginate_timer (struct thread *t) | |
1941 | { | |
1942 | struct opaque_info_per_type *oipt; | |
1943 | struct ospf_opaque_functab *functab; | |
1944 | struct ospf *top; | |
1945 | int rc = -1; | |
1946 | ||
1947 | oipt = THREAD_ARG (t); | |
1948 | oipt->t_opaque_lsa_self = NULL; | |
1949 | ||
1950 | if ((functab = oipt->functab) == NULL | |
87d6f87a | 1951 | || functab->lsa_originator == NULL) |
718e3744 | 1952 | { |
87d6f87a | 1953 | zlog_warn ("ospf_opaque_type11_lsa_reoriginate_timer:" |
1954 | " No associated function?"); | |
718e3744 | 1955 | goto out; |
1956 | } | |
1957 | ||
1958 | if ((top = (struct ospf *) oipt->owner) == NULL) | |
1959 | { | |
1960 | zlog_warn ("ospf_opaque_type11_lsa_reoriginate_timer: Something wrong?"); | |
1961 | goto out; | |
1962 | } | |
1963 | ||
1964 | if (! CHECK_FLAG (top->config, OSPF_OPAQUE_CAPABLE)) | |
1965 | { | |
1966 | if (IS_DEBUG_OSPF_EVENT) | |
2a42e285 | 1967 | zlog_debug ("Suspend re-origination of Type-11 Opaque-LSAs (opaque-type=%u) for a while...", oipt->opaque_type); |
718e3744 | 1968 | |
1969 | oipt->status = PROC_SUSPEND; | |
1970 | rc = 0; | |
1971 | goto out; | |
1972 | } | |
1973 | ||
1974 | if (IS_DEBUG_OSPF_EVENT) | |
2a42e285 | 1975 | zlog_debug ("Timer[Type11-LSA]: Re-originate Opaque-LSAs (opaque-type=%u).", oipt->opaque_type); |
718e3744 | 1976 | |
1977 | rc = (* functab->lsa_originator)(top); | |
1978 | out: | |
1979 | return rc; | |
1980 | } | |
1981 | ||
718e3744 | 1982 | void |
1983 | ospf_opaque_lsa_refresh_schedule (struct ospf_lsa *lsa0) | |
1984 | { | |
020709f9 | 1985 | struct ospf *ospf = ospf; |
718e3744 | 1986 | struct opaque_info_per_type *oipt; |
1987 | struct opaque_info_per_id *oipi; | |
1988 | struct ospf_lsa *lsa; | |
1989 | int delay; | |
1990 | ||
020709f9 | 1991 | ospf = ospf_lookup (); |
1992 | ||
718e3744 | 1993 | if ((oipt = lookup_opaque_info_by_type (lsa0)) == NULL |
1994 | || (oipi = lookup_opaque_info_by_id (oipt, lsa0)) == NULL) | |
1995 | { | |
1996 | zlog_warn ("ospf_opaque_lsa_refresh_schedule: Invalid parameter?"); | |
1997 | goto out; | |
1998 | } | |
1999 | ||
2000 | /* Given "lsa0" and current "oipi->lsa" may different, but harmless. */ | |
2001 | if ((lsa = oipi->lsa) == NULL) | |
2002 | { | |
2003 | zlog_warn ("ospf_opaque_lsa_refresh_schedule: Something wrong?"); | |
2004 | goto out; | |
2005 | } | |
2006 | ||
2007 | if (oipi->t_opaque_lsa_self != NULL) | |
2008 | { | |
2009 | if (IS_DEBUG_OSPF_EVENT) | |
2a42e285 | 2010 | zlog_debug ("Type-%u Opaque-LSA has already scheduled to REFRESH: [opaque-type=%u, opaque-id=%x]", lsa->data->type, GET_OPAQUE_TYPE (ntohl (lsa->data->id.s_addr)), GET_OPAQUE_ID (ntohl (lsa->data->id.s_addr))); |
718e3744 | 2011 | goto out; |
2012 | } | |
2013 | ||
2014 | /* Delete this lsa from neighbor retransmit-list. */ | |
2015 | switch (lsa->data->type) | |
2016 | { | |
2017 | case OSPF_OPAQUE_LINK_LSA: | |
2018 | case OSPF_OPAQUE_AREA_LSA: | |
68980084 | 2019 | ospf_ls_retransmit_delete_nbr_area (lsa->area, lsa); |
718e3744 | 2020 | break; |
2021 | case OSPF_OPAQUE_AS_LSA: | |
68980084 | 2022 | ospf_ls_retransmit_delete_nbr_as (ospf, lsa); |
718e3744 | 2023 | break; |
2024 | default: | |
2025 | zlog_warn ("ospf_opaque_lsa_refresh_schedule: Unexpected LSA-type(%u)", lsa->data->type); | |
2026 | goto out; | |
2027 | } | |
2028 | ||
2029 | delay = ospf_lsa_refresh_delay (lsa); | |
2030 | ||
2031 | if (IS_DEBUG_OSPF_EVENT) | |
2a42e285 | 2032 | zlog_debug ("Schedule Type-%u Opaque-LSA to REFRESH in %d sec later: [opaque-type=%u, opaque-id=%x]", lsa->data->type, delay, GET_OPAQUE_TYPE (ntohl (lsa->data->id.s_addr)), GET_OPAQUE_ID (ntohl (lsa->data->id.s_addr))); |
718e3744 | 2033 | |
2034 | OSPF_OPAQUE_TIMER_ON (oipi->t_opaque_lsa_self, | |
2035 | ospf_opaque_lsa_refresh_timer, oipi, delay); | |
2036 | out: | |
2037 | return; | |
2038 | } | |
2039 | ||
2040 | static int | |
2041 | ospf_opaque_lsa_refresh_timer (struct thread *t) | |
2042 | { | |
2043 | struct opaque_info_per_id *oipi; | |
2044 | struct ospf_opaque_functab *functab; | |
2045 | struct ospf_lsa *lsa; | |
2046 | ||
2047 | if (IS_DEBUG_OSPF_EVENT) | |
2a42e285 | 2048 | zlog_debug ("Timer[Opaque-LSA]: (Opaque-LSA Refresh expire)"); |
718e3744 | 2049 | |
2050 | oipi = THREAD_ARG (t); | |
2051 | oipi->t_opaque_lsa_self = NULL; | |
2052 | ||
2053 | if ((lsa = oipi->lsa) != NULL) | |
2054 | if ((functab = oipi->opqctl_type->functab) != NULL) | |
2055 | if (functab->lsa_refresher != NULL) | |
2056 | (* functab->lsa_refresher)(lsa); | |
2057 | ||
2058 | return 0; | |
2059 | } | |
2060 | ||
2061 | void | |
2062 | ospf_opaque_lsa_flush_schedule (struct ospf_lsa *lsa0) | |
2063 | { | |
020709f9 | 2064 | struct ospf *ospf = ospf; |
718e3744 | 2065 | struct opaque_info_per_type *oipt; |
2066 | struct opaque_info_per_id *oipi; | |
2067 | struct ospf_lsa *lsa; | |
2068 | ||
020709f9 | 2069 | ospf = ospf_lookup (); |
2070 | ||
718e3744 | 2071 | if ((oipt = lookup_opaque_info_by_type (lsa0)) == NULL |
2072 | || (oipi = lookup_opaque_info_by_id (oipt, lsa0)) == NULL) | |
2073 | { | |
2074 | zlog_warn ("ospf_opaque_lsa_flush_schedule: Invalid parameter?"); | |
2075 | goto out; | |
2076 | } | |
2077 | ||
2078 | /* Given "lsa0" and current "oipi->lsa" may different, but harmless. */ | |
2079 | if ((lsa = oipi->lsa) == NULL) | |
2080 | { | |
2081 | zlog_warn ("ospf_opaque_lsa_flush_schedule: Something wrong?"); | |
2082 | goto out; | |
2083 | } | |
2084 | ||
2085 | /* Delete this lsa from neighbor retransmit-list. */ | |
2086 | switch (lsa->data->type) | |
2087 | { | |
2088 | case OSPF_OPAQUE_LINK_LSA: | |
2089 | case OSPF_OPAQUE_AREA_LSA: | |
68980084 | 2090 | ospf_ls_retransmit_delete_nbr_area (lsa->area, lsa); |
718e3744 | 2091 | break; |
2092 | case OSPF_OPAQUE_AS_LSA: | |
68980084 | 2093 | ospf_ls_retransmit_delete_nbr_as (ospf, lsa); |
718e3744 | 2094 | break; |
2095 | default: | |
2096 | zlog_warn ("ospf_opaque_lsa_flush_schedule: Unexpected LSA-type(%u)", lsa->data->type); | |
2097 | goto out; | |
2098 | } | |
2099 | ||
2100 | /* Dequeue listnode entry from the list. */ | |
2101 | listnode_delete (oipt->id_list, oipi); | |
2102 | ||
2103 | /* Avoid misjudgement in the next lookup. */ | |
2104 | if (listcount (oipt->id_list) == 0) | |
2105 | oipt->id_list->head = oipt->id_list->tail = NULL; | |
2106 | ||
2107 | /* Disassociate internal control information with the given lsa. */ | |
718e3744 | 2108 | free_opaque_info_per_id ((void *) oipi); |
2109 | ||
2110 | /* Force given lsa's age to MaxAge. */ | |
2111 | lsa->data->ls_age = htons (OSPF_LSA_MAXAGE); | |
2112 | ||
2113 | if (IS_DEBUG_OSPF_EVENT) | |
2a42e285 | 2114 | zlog_debug ("Schedule Type-%u Opaque-LSA to FLUSH: [opaque-type=%u, opaque-id=%x]", lsa->data->type, GET_OPAQUE_TYPE (ntohl (lsa->data->id.s_addr)), GET_OPAQUE_ID (ntohl (lsa->data->id.s_addr))); |
718e3744 | 2115 | |
2116 | /* This lsa will be flushed and removed eventually. */ | |
68980084 | 2117 | ospf_lsa_maxage (ospf, lsa); |
718e3744 | 2118 | |
2119 | out: | |
2120 | return; | |
2121 | } | |
2122 | ||
2123 | /*------------------------------------------------------------------------* | |
2124 | * Followings are control functions to block origination after restart. | |
2125 | *------------------------------------------------------------------------*/ | |
2126 | ||
2127 | static void ospf_opaque_exclude_lsa_from_lsreq (struct route_table *nbrs, struct ospf_neighbor *inbr, struct ospf_lsa *lsa); | |
2128 | static void ospf_opaque_type9_lsa_rxmt_nbr_check (struct ospf_interface *oi); | |
2129 | static void ospf_opaque_type10_lsa_rxmt_nbr_check (struct ospf_area *area); | |
2130 | static void ospf_opaque_type11_lsa_rxmt_nbr_check (struct ospf *top); | |
2131 | static unsigned long ospf_opaque_nrxmt_self (struct route_table *nbrs, int lsa_type); | |
2132 | ||
2133 | void | |
87d6f87a | 2134 | ospf_opaque_adjust_lsreq (struct ospf_neighbor *nbr, struct list *lsas) |
718e3744 | 2135 | { |
2136 | struct ospf *top; | |
2137 | struct ospf_area *area; | |
2138 | struct ospf_interface *oi; | |
1eb8ef25 | 2139 | struct listnode *node1, *nnode1; |
2140 | struct listnode *node2, *nnode2; | |
718e3744 | 2141 | struct ospf_lsa *lsa; |
2142 | ||
2143 | if ((top = oi_to_top (nbr->oi)) == NULL) | |
2144 | goto out; | |
2145 | ||
2146 | /* | |
2147 | * If an instance of self-originated Opaque-LSA is found in the given | |
2148 | * LSA list, and it is not installed to LSDB yet, exclude it from the | |
2149 | * list "nbr->ls_req". In this way, it is assured that an LSReq message, | |
2150 | * which might be sent in the process of flooding, will not request for | |
2151 | * the LSA to be flushed immediately; otherwise, depending on timing, | |
2152 | * an LSUpd message will carry instances of target LSAs with MaxAge, | |
2153 | * while other LSUpd message might carry old LSA instances (non-MaxAge). | |
2154 | * Obviously, the latter would trigger miserable situations that repeat | |
2155 | * installation and removal of unwanted LSAs indefinitely. | |
2156 | */ | |
1eb8ef25 | 2157 | for (ALL_LIST_ELEMENTS (lsas, node1, nnode1, lsa)) |
718e3744 | 2158 | { |
718e3744 | 2159 | /* Filter out unwanted LSAs. */ |
2160 | if (! IS_OPAQUE_LSA (lsa->data->type)) | |
2161 | continue; | |
2162 | if (! IPV4_ADDR_SAME (&lsa->data->adv_router, &top->router_id)) | |
2163 | continue; | |
2164 | ||
2165 | /* | |
2166 | * Don't touch an LSA which has MaxAge; two possible cases. | |
2167 | * | |
2168 | * 1) This LSA has originally flushed by myself (received LSUpd | |
2169 | * message's router-id is equal to my router-id), and flooded | |
2170 | * back by an opaque-capable router. | |
2171 | * | |
2172 | * 2) This LSA has expired in an opaque-capable router and thus | |
2173 | * flushed by the router. | |
2174 | */ | |
2175 | if (IS_LSA_MAXAGE (lsa)) | |
2176 | continue; | |
2177 | ||
2178 | /* If the LSA has installed in the LSDB, nothing to do here. */ | |
2179 | if (ospf_lsa_lookup_by_header (nbr->oi->area, lsa->data) != NULL) | |
2180 | continue; | |
2181 | ||
2182 | /* Ok, here we go. */ | |
2183 | switch (lsa->data->type) | |
2184 | { | |
2185 | case OSPF_OPAQUE_LINK_LSA: | |
2186 | oi = nbr->oi; | |
2187 | ospf_opaque_exclude_lsa_from_lsreq (oi->nbrs, nbr, lsa); | |
2188 | break; | |
2189 | case OSPF_OPAQUE_AREA_LSA: | |
2190 | area = nbr->oi->area; | |
1eb8ef25 | 2191 | for (ALL_LIST_ELEMENTS (area->oiflist, node2, nnode2, oi)) |
2192 | ospf_opaque_exclude_lsa_from_lsreq (oi->nbrs, nbr, lsa); | |
718e3744 | 2193 | break; |
2194 | case OSPF_OPAQUE_AS_LSA: | |
1eb8ef25 | 2195 | for (ALL_LIST_ELEMENTS (top->oiflist, node2, nnode2, oi)) |
2196 | ospf_opaque_exclude_lsa_from_lsreq (oi->nbrs, nbr, lsa); | |
718e3744 | 2197 | break; |
2198 | default: | |
2199 | break; | |
2200 | } | |
2201 | } | |
2202 | ||
2203 | out: | |
2204 | return; | |
2205 | } | |
2206 | ||
2207 | static void | |
2208 | ospf_opaque_exclude_lsa_from_lsreq (struct route_table *nbrs, | |
2209 | struct ospf_neighbor *inbr, | |
2210 | struct ospf_lsa *lsa) | |
2211 | { | |
2212 | struct route_node *rn; | |
2213 | struct ospf_neighbor *onbr; | |
2214 | struct ospf_lsa *ls_req; | |
2215 | ||
2216 | for (rn = route_top (nbrs); rn; rn = route_next (rn)) | |
2217 | { | |
2218 | if ((onbr = rn->info) == NULL) | |
2219 | continue; | |
2220 | if (onbr == inbr) | |
2221 | continue; | |
2222 | if ((ls_req = ospf_ls_request_lookup (onbr, lsa)) == NULL) | |
2223 | continue; | |
2224 | ||
2225 | if (IS_DEBUG_OSPF_EVENT) | |
2a42e285 | 2226 | zlog_debug ("LSA[%s]: Exclude this entry from LSReq to send.", dump_lsa_key (lsa)); |
718e3744 | 2227 | |
2228 | ospf_ls_request_delete (onbr, ls_req); | |
2229 | /* ospf_check_nbr_loading (onbr);*//* XXX */ | |
2230 | } | |
2231 | ||
2232 | return; | |
2233 | } | |
2234 | ||
2235 | void | |
87d6f87a | 2236 | ospf_opaque_self_originated_lsa_received (struct ospf_neighbor *nbr, |
2237 | struct list *lsas) | |
718e3744 | 2238 | { |
2239 | struct ospf *top; | |
87d6f87a | 2240 | struct listnode *node, *next; |
718e3744 | 2241 | struct ospf_lsa *lsa; |
2242 | u_char before; | |
2243 | ||
2244 | if ((top = oi_to_top (nbr->oi)) == NULL) | |
2245 | goto out; | |
2246 | ||
2247 | before = IS_OPAQUE_LSA_ORIGINATION_BLOCKED (top->opaque); | |
2248 | ||
1eb8ef25 | 2249 | for (ALL_LIST_ELEMENTS (lsas, node, next, lsa)) |
718e3744 | 2250 | { |
718e3744 | 2251 | listnode_delete (lsas, lsa); |
2252 | ||
2253 | /* | |
2254 | * Since these LSA entries are not yet installed into corresponding | |
2255 | * LSDB, just flush them without calling ospf_ls_maxage() afterward. | |
2256 | */ | |
2257 | lsa->data->ls_age = htons (OSPF_LSA_MAXAGE); | |
2258 | switch (lsa->data->type) | |
2259 | { | |
2260 | case OSPF_OPAQUE_LINK_LSA: | |
2261 | SET_FLAG (top->opaque, OPAQUE_BLOCK_TYPE_09_LSA_BIT); | |
2262 | ospf_flood_through_area (nbr->oi->area, NULL/*inbr*/, lsa); | |
2263 | break; | |
2264 | case OSPF_OPAQUE_AREA_LSA: | |
2265 | SET_FLAG (top->opaque, OPAQUE_BLOCK_TYPE_10_LSA_BIT); | |
2266 | ospf_flood_through_area (nbr->oi->area, NULL/*inbr*/, lsa); | |
2267 | break; | |
2268 | case OSPF_OPAQUE_AS_LSA: | |
2269 | SET_FLAG (top->opaque, OPAQUE_BLOCK_TYPE_11_LSA_BIT); | |
68980084 | 2270 | ospf_flood_through_as (top, NULL/*inbr*/, lsa); |
718e3744 | 2271 | break; |
2272 | default: | |
2273 | zlog_warn ("ospf_opaque_self_originated_lsa_received: Unexpected LSA-type(%u)", lsa->data->type); | |
2274 | goto out; | |
2275 | } | |
2276 | ||
2277 | ospf_lsa_discard (lsa); /* List "lsas" will be deleted by caller. */ | |
2278 | } | |
2279 | ||
2280 | if (before == 0 && IS_OPAQUE_LSA_ORIGINATION_BLOCKED (top->opaque)) | |
2281 | { | |
2282 | if (IS_DEBUG_OSPF_EVENT) | |
2a42e285 | 2283 | zlog_debug ("Block Opaque-LSA origination: OFF -> ON"); |
718e3744 | 2284 | } |
2285 | ||
2286 | out: | |
2287 | return; | |
2288 | } | |
2289 | ||
2290 | void | |
87d6f87a | 2291 | ospf_opaque_ls_ack_received (struct ospf_neighbor *nbr, struct list *acks) |
718e3744 | 2292 | { |
2293 | struct ospf *top; | |
1eb8ef25 | 2294 | struct listnode *node, *nnode; |
718e3744 | 2295 | struct ospf_lsa *lsa; |
2296 | char type9_lsa_rcv = 0, type10_lsa_rcv = 0, type11_lsa_rcv = 0; | |
2297 | ||
2298 | if ((top = oi_to_top (nbr->oi)) == NULL) | |
2299 | goto out; | |
2300 | ||
1eb8ef25 | 2301 | for (ALL_LIST_ELEMENTS (acks, node, nnode, lsa)) |
718e3744 | 2302 | { |
718e3744 | 2303 | switch (lsa->data->type) |
2304 | { | |
2305 | case OSPF_OPAQUE_LINK_LSA: | |
2306 | type9_lsa_rcv = 1; | |
2307 | /* Callback function... */ | |
2308 | break; | |
2309 | case OSPF_OPAQUE_AREA_LSA: | |
2310 | type10_lsa_rcv = 1; | |
2311 | /* Callback function... */ | |
2312 | break; | |
2313 | case OSPF_OPAQUE_AS_LSA: | |
2314 | type11_lsa_rcv = 1; | |
2315 | /* Callback function... */ | |
2316 | break; | |
2317 | default: | |
2318 | zlog_warn ("ospf_opaque_ls_ack_received: Unexpected LSA-type(%u)", lsa->data->type); | |
2319 | goto out; | |
2320 | } | |
2321 | } | |
2322 | ||
2323 | if (IS_OPAQUE_LSA_ORIGINATION_BLOCKED (top->opaque)) | |
2324 | { | |
2325 | int delay; | |
2326 | struct ospf_interface *oi; | |
2327 | ||
2328 | if (type9_lsa_rcv | |
2329 | && CHECK_FLAG (top->opaque, OPAQUE_BLOCK_TYPE_09_LSA_BIT)) | |
2330 | ospf_opaque_type9_lsa_rxmt_nbr_check (nbr->oi); | |
2331 | ||
2332 | if (type10_lsa_rcv | |
2333 | && CHECK_FLAG (top->opaque, OPAQUE_BLOCK_TYPE_10_LSA_BIT)) | |
2334 | ospf_opaque_type10_lsa_rxmt_nbr_check (nbr->oi->area); | |
2335 | ||
2336 | if (type11_lsa_rcv | |
2337 | && CHECK_FLAG (top->opaque, OPAQUE_BLOCK_TYPE_11_LSA_BIT)) | |
2338 | ospf_opaque_type11_lsa_rxmt_nbr_check (top); | |
2339 | ||
2340 | if (IS_OPAQUE_LSA_ORIGINATION_BLOCKED (top->opaque)) | |
2341 | goto out; /* Blocking still in progress. */ | |
2342 | ||
2343 | if (IS_DEBUG_OSPF_EVENT) | |
2a42e285 | 2344 | zlog_debug ("Block Opaque-LSA origination: ON -> OFF"); |
718e3744 | 2345 | |
2346 | if (! CHECK_FLAG (top->config, OSPF_OPAQUE_CAPABLE)) | |
2347 | goto out; /* Opaque capability condition must have changed. */ | |
2348 | ||
2349 | /* Ok, let's start origination of Opaque-LSAs. */ | |
2350 | delay = OSPF_MIN_LS_INTERVAL; | |
718e3744 | 2351 | |
1eb8ef25 | 2352 | for (ALL_LIST_ELEMENTS (top->oiflist, node, nnode, oi)) |
87d6f87a | 2353 | { |
718e3744 | 2354 | if (! ospf_if_is_enable (oi) |
87d6f87a | 2355 | || ospf_nbr_count_opaque_capable (oi) == 0) |
718e3744 | 2356 | continue; |
2357 | ||
2358 | ospf_opaque_lsa_originate_schedule (oi, &delay); | |
2359 | } | |
2360 | } | |
2361 | ||
2362 | out: | |
2363 | return; | |
2364 | } | |
2365 | ||
2366 | static void | |
2367 | ospf_opaque_type9_lsa_rxmt_nbr_check (struct ospf_interface *oi) | |
2368 | { | |
2369 | unsigned long n; | |
2370 | ||
2371 | n = ospf_opaque_nrxmt_self (oi->nbrs, OSPF_OPAQUE_LINK_LSA); | |
2372 | if (n == 0) | |
2373 | { | |
2374 | if (IS_DEBUG_OSPF_EVENT) | |
2a42e285 | 2375 | zlog_debug ("Self-originated type-9 Opaque-LSAs: OI(%s): Flush completed", IF_NAME (oi)); |
718e3744 | 2376 | |
68980084 | 2377 | UNSET_FLAG (oi->area->ospf->opaque, OPAQUE_BLOCK_TYPE_09_LSA_BIT); |
718e3744 | 2378 | } |
2379 | return; | |
2380 | } | |
2381 | ||
2382 | static void | |
2383 | ospf_opaque_type10_lsa_rxmt_nbr_check (struct ospf_area *area) | |
2384 | { | |
87d6f87a | 2385 | struct listnode *node; |
718e3744 | 2386 | struct ospf_interface *oi; |
2387 | unsigned long n = 0; | |
2388 | ||
1eb8ef25 | 2389 | for (ALL_LIST_ELEMENTS_RO (area->oiflist, node, oi)) |
718e3744 | 2390 | { |
718e3744 | 2391 | if (area->area_id.s_addr != OSPF_AREA_BACKBONE |
1eb8ef25 | 2392 | && oi->type == OSPF_IFTYPE_VIRTUALLINK) |
718e3744 | 2393 | continue; |
2394 | ||
2395 | n = ospf_opaque_nrxmt_self (oi->nbrs, OSPF_OPAQUE_AREA_LSA); | |
2396 | if (n > 0) | |
2397 | break; | |
2398 | } | |
2399 | ||
2400 | if (n == 0) | |
2401 | { | |
2402 | if (IS_DEBUG_OSPF_EVENT) | |
2a42e285 | 2403 | zlog_debug ("Self-originated type-10 Opaque-LSAs: AREA(%s): Flush completed", inet_ntoa (area->area_id)); |
718e3744 | 2404 | |
68980084 | 2405 | UNSET_FLAG (area->ospf->opaque, OPAQUE_BLOCK_TYPE_10_LSA_BIT); |
718e3744 | 2406 | } |
2407 | ||
2408 | return; | |
2409 | } | |
2410 | ||
2411 | static void | |
2412 | ospf_opaque_type11_lsa_rxmt_nbr_check (struct ospf *top) | |
2413 | { | |
87d6f87a | 2414 | struct listnode *node; |
718e3744 | 2415 | struct ospf_interface *oi; |
2416 | unsigned long n = 0; | |
2417 | ||
1eb8ef25 | 2418 | for (ALL_LIST_ELEMENTS_RO (top->oiflist, node, oi)) |
718e3744 | 2419 | { |
718e3744 | 2420 | switch (oi->type) |
2421 | { | |
2422 | case OSPF_IFTYPE_VIRTUALLINK: | |
2423 | continue; | |
2424 | default: | |
2425 | break; | |
2426 | } | |
2427 | ||
2428 | n = ospf_opaque_nrxmt_self (oi->nbrs, OSPF_OPAQUE_AS_LSA); | |
2429 | if (n > 0) | |
2430 | goto out; | |
2431 | } | |
2432 | ||
2433 | if (n == 0) | |
2434 | { | |
2435 | if (IS_DEBUG_OSPF_EVENT) | |
2a42e285 | 2436 | zlog_debug ("Self-originated type-11 Opaque-LSAs: Flush completed"); |
718e3744 | 2437 | |
2438 | UNSET_FLAG (top->opaque, OPAQUE_BLOCK_TYPE_11_LSA_BIT); | |
2439 | } | |
2440 | ||
2441 | out: | |
2442 | return; | |
2443 | } | |
2444 | ||
2445 | static unsigned long | |
2446 | ospf_opaque_nrxmt_self (struct route_table *nbrs, int lsa_type) | |
2447 | { | |
2448 | struct route_node *rn; | |
2449 | struct ospf_neighbor *nbr; | |
2450 | struct ospf *top; | |
2451 | unsigned long n = 0; | |
2452 | ||
2453 | for (rn = route_top (nbrs); rn; rn = route_next (rn)) | |
2454 | { | |
2455 | if ((nbr = rn->info) == NULL) | |
2456 | continue; | |
2457 | if ((top = oi_to_top (nbr->oi)) == NULL) | |
2458 | continue; | |
2459 | if (IPV4_ADDR_SAME (&nbr->router_id, &top->router_id)) | |
2460 | continue; | |
2461 | n += ospf_ls_retransmit_count_self (nbr, lsa_type); | |
2462 | } | |
2463 | ||
2464 | return n; | |
2465 | } | |
2466 | ||
2467 | /*------------------------------------------------------------------------* | |
2468 | * Followings are util functions; probably be used by Opaque-LSAs only... | |
2469 | *------------------------------------------------------------------------*/ | |
2470 | ||
2471 | void | |
2472 | htonf (float *src, float *dst) | |
2473 | { | |
2474 | u_int32_t lu1, lu2; | |
2475 | ||
2476 | memcpy (&lu1, src, sizeof (u_int32_t)); | |
2477 | lu2 = htonl (lu1); | |
2478 | memcpy (dst, &lu2, sizeof (u_int32_t)); | |
2479 | return; | |
2480 | } | |
2481 | ||
2482 | void | |
2483 | ntohf (float *src, float *dst) | |
2484 | { | |
2485 | u_int32_t lu1, lu2; | |
2486 | ||
2487 | memcpy (&lu1, src, sizeof (u_int32_t)); | |
2488 | lu2 = ntohl (lu1); | |
2489 | memcpy (dst, &lu2, sizeof (u_int32_t)); | |
2490 | return; | |
2491 | } | |
2492 | ||
2493 | struct ospf * | |
2494 | oi_to_top (struct ospf_interface *oi) | |
2495 | { | |
2496 | struct ospf *top = NULL; | |
2497 | struct ospf_area *area; | |
2498 | ||
68980084 | 2499 | if (oi == NULL || (area = oi->area) == NULL || (top = area->ospf) == NULL) |
718e3744 | 2500 | zlog_warn ("Broken relationship for \"OI -> AREA -> OSPF\"?"); |
2501 | ||
2502 | return top; | |
2503 | } | |
2504 | ||
2505 | #endif /* HAVE_OPAQUE_LSA */ |