/* [<][>][^][v][top][bottom][index][help] */
DEFINITIONS
This source file includes following definitions.
- ldb_context_destructor
- ldb_tevent_debug
- ldb_init
- ldb_set_default_dns
- ldb_get_root_basedn
- ldb_get_config_basedn
- ldb_get_schema_basedn
- ldb_get_default_basedn
- ldb_connect
- ldb_set_errstring
- ldb_asprintf_errstring
- ldb_reset_err_string
- ldb_transaction_start
- ldb_transaction_commit
- ldb_transaction_cancel
- ldb_autotransaction_request
- ldb_wait
- ldb_set_timeout
- ldb_set_timeout_from_prev_req
- ldb_set_create_perms
- ldb_get_create_perms
- ldb_set_event_context
- ldb_get_event_context
- ldb_request_set_state
- ldb_request_get_status
- ldb_request
- ldb_request_done
- ldb_search_default_callback
- ldb_op_default_callback
- ldb_build_search_req_ex
- ldb_build_search_req
- ldb_build_add_req
- ldb_build_mod_req
- ldb_build_del_req
- ldb_build_rename_req
- ldb_extended_default_callback
- ldb_build_extended_req
- ldb_extended
- ldb_search
- ldb_add
- ldb_modify
- ldb_delete
- ldb_rename
- ldb_sequence_number
- ldb_errstring
- ldb_strerror
- ldb_set_opaque
- ldb_get_opaque
1 /*
2 ldb database library
3
4 Copyright (C) Andrew Tridgell 2004
5 Copyright (C) Simo Sorce 2005-2008
6
7 ** NOTE! The following LGPL license applies to the ldb
8 ** library. This does NOT imply that all of Samba is released
9 ** under the LGPL
10
11 This library is free software; you can redistribute it and/or
12 modify it under the terms of the GNU Lesser General Public
13 License as published by the Free Software Foundation; either
14 version 3 of the License, or (at your option) any later version.
15
16 This library is distributed in the hope that it will be useful,
17 but WITHOUT ANY WARRANTY; without even the implied warranty of
18 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
19 Lesser General Public License for more details.
20
21 You should have received a copy of the GNU Lesser General Public
22 License along with this library; if not, see <http://www.gnu.org/licenses/>.
23 */
24
25 /*
26 * Name: ldb
27 *
28 * Component: ldb core API
29 *
30 * Description: core API routines interfacing to ldb backends
31 *
32 * Author: Andrew Tridgell
33 */
34
35 #define TEVENT_DEPRECATED 1
36 #include "ldb_private.h"
37
38 static int ldb_context_destructor(void *ptr)
/* [<][>][^][v][top][bottom][index][help] */
39 {
40 struct ldb_context *ldb = talloc_get_type(ptr, struct ldb_context);
41
42 if (ldb->transaction_active) {
43 ldb_debug(ldb, LDB_DEBUG_FATAL,
44 "A transaction is still active in ldb context [%p]",
45 ldb);
46 }
47
48 return 0;
49 }
50
51 /*
52 this is used to catch debug messages from events
53 */
54 static void ldb_tevent_debug(void *context, enum tevent_debug_level level,
/* [<][>][^][v][top][bottom][index][help] */
55 const char *fmt, va_list ap) PRINTF_ATTRIBUTE(3,0);
56
57 static void ldb_tevent_debug(void *context, enum tevent_debug_level level,
58 const char *fmt, va_list ap)
59 {
60 struct ldb_context *ldb = talloc_get_type(context, struct ldb_context);
61 enum ldb_debug_level ldb_level = LDB_DEBUG_FATAL;
62 char *s = NULL;
63
64 switch (level) {
65 case TEVENT_DEBUG_FATAL:
66 ldb_level = LDB_DEBUG_FATAL;
67 break;
68 case TEVENT_DEBUG_ERROR:
69 ldb_level = LDB_DEBUG_ERROR;
70 break;
71 case TEVENT_DEBUG_WARNING:
72 ldb_level = LDB_DEBUG_WARNING;
73 break;
74 case TEVENT_DEBUG_TRACE:
75 ldb_level = LDB_DEBUG_TRACE;
76 break;
77 };
78
79 vasprintf(&s, fmt, ap);
80 if (!s) return;
81 ldb_debug(ldb, ldb_level, "tevent: %s", s);
82 free(s);
83 }
84
85 /*
86 initialise a ldb context
87 The mem_ctx is required
88 The event_ctx is required
89 */
90 struct ldb_context *ldb_init(TALLOC_CTX *mem_ctx, struct tevent_context *ev_ctx)
/* [<][>][^][v][top][bottom][index][help] */
91 {
92 struct ldb_context *ldb;
93 int ret;
94
95 ldb = talloc_zero(mem_ctx, struct ldb_context);
96 /* FIXME: Hack a new event context so that CMD line utilities work
97 * until we have them all converted */
98 if (ev_ctx == NULL) {
99 ev_ctx = tevent_context_init(talloc_autofree_context());
100 tevent_set_debug(ev_ctx, ldb_tevent_debug, ldb);
101 tevent_loop_allow_nesting(ev_ctx);
102 }
103
104 ret = ldb_setup_wellknown_attributes(ldb);
105 if (ret != 0) {
106 talloc_free(ldb);
107 return NULL;
108 }
109
110 ldb_set_utf8_default(ldb);
111 ldb_set_create_perms(ldb, 0666);
112 ldb_set_modules_dir(ldb, LDB_MODULESDIR);
113 ldb_set_event_context(ldb, ev_ctx);
114
115 /* TODO: get timeout from options if available there */
116 ldb->default_timeout = 300; /* set default to 5 minutes */
117
118 talloc_set_destructor((TALLOC_CTX *)ldb, ldb_context_destructor);
119
120 return ldb;
121 }
122
123 /*
124 try to autodetect a basedn if none specified. This fixes one of my
125 pet hates about ldapsearch, which is that you have to get a long,
126 complex basedn right to make any use of it.
127 */
128 void ldb_set_default_dns(struct ldb_context *ldb)
/* [<][>][^][v][top][bottom][index][help] */
129 {
130 TALLOC_CTX *tmp_ctx;
131 int ret;
132 struct ldb_result *res;
133 struct ldb_dn *tmp_dn=NULL;
134 static const char *attrs[] = {
135 "rootDomainNamingContext",
136 "configurationNamingContext",
137 "schemaNamingContext",
138 "defaultNamingContext",
139 NULL
140 };
141
142 tmp_ctx = talloc_new(ldb);
143 ret = ldb_search(ldb, tmp_ctx, &res, ldb_dn_new(tmp_ctx, ldb, NULL),
144 LDB_SCOPE_BASE, attrs, "(objectClass=*)");
145 if (ret != LDB_SUCCESS) {
146 talloc_free(tmp_ctx);
147 return;
148 }
149
150 if (res->count != 1) {
151 talloc_free(tmp_ctx);
152 return;
153 }
154
155 if (!ldb_get_opaque(ldb, "rootDomainNamingContext")) {
156 tmp_dn = ldb_msg_find_attr_as_dn(ldb, ldb, res->msgs[0],
157 "rootDomainNamingContext");
158 ldb_set_opaque(ldb, "rootDomainNamingContext", tmp_dn);
159 }
160
161 if (!ldb_get_opaque(ldb, "configurationNamingContext")) {
162 tmp_dn = ldb_msg_find_attr_as_dn(ldb, ldb, res->msgs[0],
163 "configurationNamingContext");
164 ldb_set_opaque(ldb, "configurationNamingContext", tmp_dn);
165 }
166
167 if (!ldb_get_opaque(ldb, "schemaNamingContext")) {
168 tmp_dn = ldb_msg_find_attr_as_dn(ldb, ldb, res->msgs[0],
169 "schemaNamingContext");
170 ldb_set_opaque(ldb, "schemaNamingContext", tmp_dn);
171 }
172
173 if (!ldb_get_opaque(ldb, "defaultNamingContext")) {
174 tmp_dn = ldb_msg_find_attr_as_dn(ldb, ldb, res->msgs[0],
175 "defaultNamingContext");
176 ldb_set_opaque(ldb, "defaultNamingContext", tmp_dn);
177 }
178
179 talloc_free(tmp_ctx);
180 }
181
182 struct ldb_dn *ldb_get_root_basedn(struct ldb_context *ldb)
/* [<][>][^][v][top][bottom][index][help] */
183 {
184 void *opaque = ldb_get_opaque(ldb, "rootDomainNamingContext");
185 return talloc_get_type(opaque, struct ldb_dn);
186 }
187
188 struct ldb_dn *ldb_get_config_basedn(struct ldb_context *ldb)
/* [<][>][^][v][top][bottom][index][help] */
189 {
190 void *opaque = ldb_get_opaque(ldb, "configurationNamingContext");
191 return talloc_get_type(opaque, struct ldb_dn);
192 }
193
194 struct ldb_dn *ldb_get_schema_basedn(struct ldb_context *ldb)
/* [<][>][^][v][top][bottom][index][help] */
195 {
196 void *opaque = ldb_get_opaque(ldb, "schemaNamingContext");
197 return talloc_get_type(opaque, struct ldb_dn);
198 }
199
200 struct ldb_dn *ldb_get_default_basedn(struct ldb_context *ldb)
/* [<][>][^][v][top][bottom][index][help] */
201 {
202 void *opaque = ldb_get_opaque(ldb, "defaultNamingContext");
203 return talloc_get_type(opaque, struct ldb_dn);
204 }
205
206 /*
207 connect to a database. The URL can either be one of the following forms
208 ldb://path
209 ldapi://path
210
211 flags is made up of LDB_FLG_*
212
213 the options are passed uninterpreted to the backend, and are
214 backend specific
215 */
216 int ldb_connect(struct ldb_context *ldb, const char *url,
/* [<][>][^][v][top][bottom][index][help] */
217 unsigned int flags, const char *options[])
218 {
219 int ret;
220 const char *url2;
221 /* We seem to need to do this here, or else some utilities don't
222 * get ldb backends */
223
224 ldb->flags = flags;
225
226 url2 = talloc_strdup(ldb, url);
227 if (!url2) {
228 ldb_oom(ldb);
229 return LDB_ERR_OPERATIONS_ERROR;
230 }
231 ret = ldb_set_opaque(ldb, "ldb_url", talloc_strdup(ldb, url2));
232 if (ret != LDB_SUCCESS) {
233 return ret;
234 }
235
236 ret = ldb_connect_backend(ldb, url, options, &ldb->modules);
237 if (ret != LDB_SUCCESS) {
238 return ret;
239 }
240
241 if (ldb_load_modules(ldb, options) != LDB_SUCCESS) {
242 ldb_debug(ldb, LDB_DEBUG_FATAL,
243 "Unable to load modules for %s: %s\n",
244 url, ldb_errstring(ldb));
245 return LDB_ERR_OTHER;
246 }
247
248 /* set the default base dn */
249 ldb_set_default_dns(ldb);
250
251 return LDB_SUCCESS;
252 }
253
254 void ldb_set_errstring(struct ldb_context *ldb, const char *err_string)
/* [<][>][^][v][top][bottom][index][help] */
255 {
256 if (ldb->err_string) {
257 talloc_free(ldb->err_string);
258 }
259 ldb->err_string = talloc_strdup(ldb, err_string);
260 }
261
262 void ldb_asprintf_errstring(struct ldb_context *ldb, const char *format, ...)
/* [<][>][^][v][top][bottom][index][help] */
263 {
264 va_list ap;
265 char *old_string = NULL;
266
267 if (ldb->err_string) {
268 old_string = ldb->err_string;
269 }
270
271 va_start(ap, format);
272 ldb->err_string = talloc_vasprintf(ldb, format, ap);
273 va_end(ap);
274 talloc_free(old_string);
275 }
276
277 void ldb_reset_err_string(struct ldb_context *ldb)
/* [<][>][^][v][top][bottom][index][help] */
278 {
279 if (ldb->err_string) {
280 talloc_free(ldb->err_string);
281 ldb->err_string = NULL;
282 }
283 }
284
285 #define FIRST_OP(ldb, op) do { \
286 module = ldb->modules; \
287 while (module && module->ops->op == NULL) module = module->next; \
288 if (module == NULL) { \
289 ldb_asprintf_errstring(ldb, "unable to find module or backend to handle operation: " #op); \
290 return LDB_ERR_OPERATIONS_ERROR; \
291 } \
292 } while (0)
293
294 /*
295 start a transaction
296 */
297 int ldb_transaction_start(struct ldb_context *ldb)
/* [<][>][^][v][top][bottom][index][help] */
298 {
299 struct ldb_module *module;
300 int status;
301
302 ldb_debug(ldb, LDB_DEBUG_TRACE,
303 "start ldb transaction (nesting: %d)",
304 ldb->transaction_active);
305
306 /* explicit transaction active, count nested requests */
307 if (ldb->transaction_active) {
308 ldb->transaction_active++;
309 return LDB_SUCCESS;
310 }
311
312 /* start a new transaction */
313 ldb->transaction_active++;
314
315 FIRST_OP(ldb, start_transaction);
316
317 ldb_reset_err_string(ldb);
318
319 status = module->ops->start_transaction(module);
320 if (status != LDB_SUCCESS) {
321 if (ldb->err_string == NULL) {
322 /* no error string was setup by the backend */
323 ldb_asprintf_errstring(ldb,
324 "ldb transaction start: %s (%d)",
325 ldb_strerror(status),
326 status);
327 }
328 }
329 return status;
330 }
331
332 /*
333 commit a transaction
334 */
335 int ldb_transaction_commit(struct ldb_context *ldb)
/* [<][>][^][v][top][bottom][index][help] */
336 {
337 struct ldb_module *module;
338 int status;
339
340 ldb->transaction_active--;
341
342 ldb_debug(ldb, LDB_DEBUG_TRACE,
343 "commit ldb transaction (nesting: %d)",
344 ldb->transaction_active);
345
346 /* commit only when all nested transactions are complete */
347 if (ldb->transaction_active > 0) {
348 return LDB_SUCCESS;
349 }
350
351 if (ldb->transaction_active < 0) {
352 ldb_debug(ldb, LDB_DEBUG_FATAL,
353 "commit called but no ldb transactions are active!");
354 ldb->transaction_active = 0;
355 return LDB_ERR_OPERATIONS_ERROR;
356 }
357
358 FIRST_OP(ldb, end_transaction);
359
360 ldb_reset_err_string(ldb);
361
362 status = module->ops->end_transaction(module);
363 if (status != LDB_SUCCESS) {
364 if (ldb->err_string == NULL) {
365 /* no error string was setup by the backend */
366 ldb_asprintf_errstring(ldb,
367 "ldb transaction commit: %s (%d)",
368 ldb_strerror(status),
369 status);
370 }
371 }
372 return status;
373 }
374
375 /*
376 cancel a transaction
377 */
378 int ldb_transaction_cancel(struct ldb_context *ldb)
/* [<][>][^][v][top][bottom][index][help] */
379 {
380 struct ldb_module *module;
381 int status;
382
383 ldb->transaction_active--;
384
385 ldb_debug(ldb, LDB_DEBUG_TRACE,
386 "cancel ldb transaction (nesting: %d)",
387 ldb->transaction_active);
388
389 /* really cancel only if all nested transactions are complete */
390 if (ldb->transaction_active > 0) {
391 return LDB_SUCCESS;
392 }
393
394 if (ldb->transaction_active < 0) {
395 ldb_debug(ldb, LDB_DEBUG_FATAL,
396 "commit called but no ldb transactions are active!");
397 ldb->transaction_active = 0;
398 return LDB_ERR_OPERATIONS_ERROR;
399 }
400
401 FIRST_OP(ldb, del_transaction);
402
403 status = module->ops->del_transaction(module);
404 if (status != LDB_SUCCESS) {
405 if (ldb->err_string == NULL) {
406 /* no error string was setup by the backend */
407 ldb_asprintf_errstring(ldb,
408 "ldb transaction cancel: %s (%d)",
409 ldb_strerror(status),
410 status);
411 }
412 }
413 return status;
414 }
415
416 /* autostarts a transacion if none active */
417 static int ldb_autotransaction_request(struct ldb_context *ldb,
/* [<][>][^][v][top][bottom][index][help] */
418 struct ldb_request *req)
419 {
420 int ret;
421
422 ret = ldb_transaction_start(ldb);
423 if (ret != LDB_SUCCESS) {
424 return ret;
425 }
426
427 ret = ldb_request(ldb, req);
428 if (ret == LDB_SUCCESS) {
429 ret = ldb_wait(req->handle, LDB_WAIT_ALL);
430 }
431
432 if (ret == LDB_SUCCESS) {
433 return ldb_transaction_commit(ldb);
434 }
435 ldb_transaction_cancel(ldb);
436
437 if (ldb->err_string == NULL) {
438 /* no error string was setup by the backend */
439 ldb_asprintf_errstring(ldb, "%s (%d)", ldb_strerror(ret), ret);
440 }
441
442 return ret;
443 }
444
445 int ldb_wait(struct ldb_handle *handle, enum ldb_wait_type type)
/* [<][>][^][v][top][bottom][index][help] */
446 {
447 struct tevent_context *ev;
448 int ret;
449
450 if (!handle) {
451 return LDB_ERR_UNAVAILABLE;
452 }
453
454 if (handle->state == LDB_ASYNC_DONE) {
455 return handle->status;
456 }
457
458 ev = ldb_get_event_context(handle->ldb);
459 if (NULL == ev) {
460 return LDB_ERR_OPERATIONS_ERROR;
461 }
462
463 switch (type) {
464 case LDB_WAIT_NONE:
465 ret = tevent_loop_once(ev);
466 if (ret != 0) {
467 return LDB_ERR_OPERATIONS_ERROR;
468 }
469 if (handle->state == LDB_ASYNC_DONE ||
470 handle->status != LDB_SUCCESS) {
471 return handle->status;
472 }
473 break;
474
475 case LDB_WAIT_ALL:
476 while (handle->state != LDB_ASYNC_DONE) {
477 ret = tevent_loop_once(ev);
478 if (ret != 0) {
479 return LDB_ERR_OPERATIONS_ERROR;
480 }
481 if (handle->status != LDB_SUCCESS) {
482 return handle->status;
483 }
484 }
485 return handle->status;
486 }
487
488 return LDB_SUCCESS;
489 }
490
491 /* set the specified timeout or, if timeout is 0 set the default timeout */
492 int ldb_set_timeout(struct ldb_context *ldb,
/* [<][>][^][v][top][bottom][index][help] */
493 struct ldb_request *req,
494 int timeout)
495 {
496 if (req == NULL) return LDB_ERR_OPERATIONS_ERROR;
497
498 if (timeout != 0) {
499 req->timeout = timeout;
500 } else {
501 req->timeout = ldb->default_timeout;
502 }
503 req->starttime = time(NULL);
504
505 return LDB_SUCCESS;
506 }
507
508 /* calculates the new timeout based on the previous starttime and timeout */
509 int ldb_set_timeout_from_prev_req(struct ldb_context *ldb,
/* [<][>][^][v][top][bottom][index][help] */
510 struct ldb_request *oldreq,
511 struct ldb_request *newreq)
512 {
513 if (newreq == NULL) return LDB_ERR_OPERATIONS_ERROR;
514
515 if (oldreq == NULL) {
516 return ldb_set_timeout(ldb, newreq, 0);
517 }
518
519 newreq->starttime = oldreq->starttime;
520 newreq->timeout = oldreq->timeout;
521
522 return LDB_SUCCESS;
523 }
524
525
526 /*
527 set the permissions for new files to be passed to open() in
528 backends that use local files
529 */
530 void ldb_set_create_perms(struct ldb_context *ldb, unsigned int perms)
/* [<][>][^][v][top][bottom][index][help] */
531 {
532 ldb->create_perms = perms;
533 }
534
535 unsigned int ldb_get_create_perms(struct ldb_context *ldb)
/* [<][>][^][v][top][bottom][index][help] */
536 {
537 return ldb->create_perms;
538 }
539
540 void ldb_set_event_context(struct ldb_context *ldb, struct tevent_context *ev)
/* [<][>][^][v][top][bottom][index][help] */
541 {
542 ldb->ev_ctx = ev;
543 }
544
545 struct tevent_context * ldb_get_event_context(struct ldb_context *ldb)
/* [<][>][^][v][top][bottom][index][help] */
546 {
547 return ldb->ev_ctx;
548 }
549
550 void ldb_request_set_state(struct ldb_request *req, int state)
/* [<][>][^][v][top][bottom][index][help] */
551 {
552 req->handle->state = state;
553 }
554
555 int ldb_request_get_status(struct ldb_request *req)
/* [<][>][^][v][top][bottom][index][help] */
556 {
557 return req->handle->status;
558 }
559
560 /*
561 start an ldb request
562 NOTE: the request must be a talloc context.
563 returns LDB_ERR_* on errors.
564 */
565 int ldb_request(struct ldb_context *ldb, struct ldb_request *req)
/* [<][>][^][v][top][bottom][index][help] */
566 {
567 struct ldb_module *module;
568 int ret;
569
570 if (req->callback == NULL) {
571 ldb_set_errstring(ldb, "Requests MUST define callbacks");
572 return LDB_ERR_UNWILLING_TO_PERFORM;
573 }
574
575 ldb_reset_err_string(ldb);
576
577 /* call the first module in the chain */
578 switch (req->operation) {
579 case LDB_SEARCH:
580 FIRST_OP(ldb, search);
581 ret = module->ops->search(module, req);
582 break;
583 case LDB_ADD:
584 FIRST_OP(ldb, add);
585 ret = module->ops->add(module, req);
586 break;
587 case LDB_MODIFY:
588 FIRST_OP(ldb, modify);
589 ret = module->ops->modify(module, req);
590 break;
591 case LDB_DELETE:
592 FIRST_OP(ldb, del);
593 ret = module->ops->del(module, req);
594 break;
595 case LDB_RENAME:
596 FIRST_OP(ldb, rename);
597 ret = module->ops->rename(module, req);
598 break;
599 case LDB_EXTENDED:
600 FIRST_OP(ldb, extended);
601 ret = module->ops->extended(module, req);
602 break;
603 default:
604 FIRST_OP(ldb, request);
605 ret = module->ops->request(module, req);
606 break;
607 }
608
609 return ret;
610 }
611
612 int ldb_request_done(struct ldb_request *req, int status)
/* [<][>][^][v][top][bottom][index][help] */
613 {
614 req->handle->state = LDB_ASYNC_DONE;
615 req->handle->status = status;
616 return status;
617 }
618
619 /*
620 search the database given a LDAP-like search expression
621
622 returns an LDB error code
623
624 Use talloc_free to free the ldb_message returned in 'res', if successful
625
626 */
627 int ldb_search_default_callback(struct ldb_request *req,
/* [<][>][^][v][top][bottom][index][help] */
628 struct ldb_reply *ares)
629 {
630 struct ldb_result *res;
631 int n;
632
633 res = talloc_get_type(req->context, struct ldb_result);
634
635 if (!ares) {
636 return ldb_request_done(req, LDB_ERR_OPERATIONS_ERROR);
637 }
638 if (ares->error != LDB_SUCCESS) {
639 return ldb_request_done(req, ares->error);
640 }
641
642 switch (ares->type) {
643 case LDB_REPLY_ENTRY:
644 res->msgs = talloc_realloc(res, res->msgs,
645 struct ldb_message *, res->count + 2);
646 if (! res->msgs) {
647 return ldb_request_done(req, LDB_ERR_OPERATIONS_ERROR);
648 }
649
650 res->msgs[res->count + 1] = NULL;
651
652 res->msgs[res->count] = talloc_move(res->msgs, &ares->message);
653 res->count++;
654 break;
655
656 case LDB_REPLY_REFERRAL:
657 if (res->refs) {
658 for (n = 0; res->refs[n]; n++) /*noop*/ ;
659 } else {
660 n = 0;
661 }
662
663 res->refs = talloc_realloc(res, res->refs, char *, n + 2);
664 if (! res->refs) {
665 return ldb_request_done(req, LDB_ERR_OPERATIONS_ERROR);
666 }
667
668 res->refs[n] = talloc_move(res->refs, &ares->referral);
669 res->refs[n + 1] = NULL;
670 break;
671
672 case LDB_REPLY_DONE:
673 /* TODO: we should really support controls on entries
674 * and referrals too! */
675 res->controls = talloc_move(res, &ares->controls);
676
677 /* this is the last message, and means the request is done */
678 /* we have to signal and eventual ldb_wait() waiting that the
679 * async request operation was completed */
680 return ldb_request_done(req, LDB_SUCCESS);
681 }
682
683 talloc_free(ares);
684 return LDB_SUCCESS;
685 }
686
687 int ldb_op_default_callback(struct ldb_request *req, struct ldb_reply *ares)
/* [<][>][^][v][top][bottom][index][help] */
688 {
689 int ret;
690
691 if (!ares) {
692 return ldb_request_done(req, LDB_ERR_OPERATIONS_ERROR);
693 }
694
695 if (ares->error != LDB_SUCCESS) {
696 ret = ares->error;
697 talloc_free(ares);
698 return ldb_request_done(req, ret);
699 }
700
701 if (ares->type != LDB_REPLY_DONE) {
702 talloc_free(ares);
703 ldb_set_errstring(req->handle->ldb, "Invalid reply type!");
704 return ldb_request_done(req, LDB_ERR_OPERATIONS_ERROR);
705 }
706
707 talloc_free(ares);
708 return ldb_request_done(req, LDB_SUCCESS);
709 }
710
711 int ldb_build_search_req_ex(struct ldb_request **ret_req,
/* [<][>][^][v][top][bottom][index][help] */
712 struct ldb_context *ldb,
713 void *mem_ctx,
714 struct ldb_dn *base,
715 enum ldb_scope scope,
716 struct ldb_parse_tree *tree,
717 const char * const *attrs,
718 struct ldb_control **controls,
719 void *context,
720 ldb_request_callback_t callback,
721 struct ldb_request *parent)
722 {
723 struct ldb_request *req;
724
725 *ret_req = NULL;
726
727 req = talloc(mem_ctx, struct ldb_request);
728 if (req == NULL) {
729 ldb_oom(ldb);
730 return LDB_ERR_OPERATIONS_ERROR;
731 }
732
733 req->operation = LDB_SEARCH;
734 if (base == NULL) {
735 req->op.search.base = ldb_dn_new(req, ldb, NULL);
736 } else {
737 req->op.search.base = base;
738 }
739 req->op.search.scope = scope;
740
741 req->op.search.tree = tree;
742 if (req->op.search.tree == NULL) {
743 ldb_set_errstring(ldb, "'tree' can't be NULL");
744 talloc_free(req);
745 return LDB_ERR_OPERATIONS_ERROR;
746 }
747
748 req->op.search.attrs = attrs;
749 req->controls = controls;
750 req->context = context;
751 req->callback = callback;
752
753 ldb_set_timeout_from_prev_req(ldb, parent, req);
754
755 req->handle = ldb_handle_new(req, ldb);
756 if (req->handle == NULL) {
757 ldb_oom(ldb);
758 return LDB_ERR_OPERATIONS_ERROR;
759 }
760
761 *ret_req = req;
762 return LDB_SUCCESS;
763 }
764
765 int ldb_build_search_req(struct ldb_request **ret_req,
/* [<][>][^][v][top][bottom][index][help] */
766 struct ldb_context *ldb,
767 void *mem_ctx,
768 struct ldb_dn *base,
769 enum ldb_scope scope,
770 const char *expression,
771 const char * const *attrs,
772 struct ldb_control **controls,
773 void *context,
774 ldb_request_callback_t callback,
775 struct ldb_request *parent)
776 {
777 struct ldb_parse_tree *tree;
778 int ret;
779
780 tree = ldb_parse_tree(mem_ctx, expression);
781 if (tree == NULL) {
782 ldb_set_errstring(ldb, "Unable to parse search expression");
783 return LDB_ERR_OPERATIONS_ERROR;
784 }
785
786 ret = ldb_build_search_req_ex(ret_req, ldb, mem_ctx, base,
787 scope, tree, attrs, controls,
788 context, callback, parent);
789 if (ret == LDB_SUCCESS) {
790 talloc_steal(*ret_req, tree);
791 }
792 return ret;
793 }
794
795 int ldb_build_add_req(struct ldb_request **ret_req,
/* [<][>][^][v][top][bottom][index][help] */
796 struct ldb_context *ldb,
797 void *mem_ctx,
798 const struct ldb_message *message,
799 struct ldb_control **controls,
800 void *context,
801 ldb_request_callback_t callback,
802 struct ldb_request *parent)
803 {
804 struct ldb_request *req;
805
806 *ret_req = NULL;
807
808 req = talloc(mem_ctx, struct ldb_request);
809 if (req == NULL) {
810 ldb_set_errstring(ldb, "Out of Memory");
811 return LDB_ERR_OPERATIONS_ERROR;
812 }
813
814 req->operation = LDB_ADD;
815 req->op.add.message = message;
816 req->controls = controls;
817 req->context = context;
818 req->callback = callback;
819
820 ldb_set_timeout_from_prev_req(ldb, parent, req);
821
822 req->handle = ldb_handle_new(req, ldb);
823 if (req->handle == NULL) {
824 ldb_oom(ldb);
825 return LDB_ERR_OPERATIONS_ERROR;
826 }
827
828 *ret_req = req;
829
830 return LDB_SUCCESS;
831 }
832
833 int ldb_build_mod_req(struct ldb_request **ret_req,
/* [<][>][^][v][top][bottom][index][help] */
834 struct ldb_context *ldb,
835 void *mem_ctx,
836 const struct ldb_message *message,
837 struct ldb_control **controls,
838 void *context,
839 ldb_request_callback_t callback,
840 struct ldb_request *parent)
841 {
842 struct ldb_request *req;
843
844 *ret_req = NULL;
845
846 req = talloc(mem_ctx, struct ldb_request);
847 if (req == NULL) {
848 ldb_set_errstring(ldb, "Out of Memory");
849 return LDB_ERR_OPERATIONS_ERROR;
850 }
851
852 req->operation = LDB_MODIFY;
853 req->op.mod.message = message;
854 req->controls = controls;
855 req->context = context;
856 req->callback = callback;
857
858 ldb_set_timeout_from_prev_req(ldb, parent, req);
859
860 req->handle = ldb_handle_new(req, ldb);
861 if (req->handle == NULL) {
862 ldb_oom(ldb);
863 return LDB_ERR_OPERATIONS_ERROR;
864 }
865
866 *ret_req = req;
867
868 return LDB_SUCCESS;
869 }
870
871 int ldb_build_del_req(struct ldb_request **ret_req,
/* [<][>][^][v][top][bottom][index][help] */
872 struct ldb_context *ldb,
873 void *mem_ctx,
874 struct ldb_dn *dn,
875 struct ldb_control **controls,
876 void *context,
877 ldb_request_callback_t callback,
878 struct ldb_request *parent)
879 {
880 struct ldb_request *req;
881
882 *ret_req = NULL;
883
884 req = talloc(mem_ctx, struct ldb_request);
885 if (req == NULL) {
886 ldb_set_errstring(ldb, "Out of Memory");
887 return LDB_ERR_OPERATIONS_ERROR;
888 }
889
890 req->operation = LDB_DELETE;
891 req->op.del.dn = dn;
892 req->controls = controls;
893 req->context = context;
894 req->callback = callback;
895
896 ldb_set_timeout_from_prev_req(ldb, parent, req);
897
898 req->handle = ldb_handle_new(req, ldb);
899 if (req->handle == NULL) {
900 ldb_oom(ldb);
901 return LDB_ERR_OPERATIONS_ERROR;
902 }
903
904 *ret_req = req;
905
906 return LDB_SUCCESS;
907 }
908
909 int ldb_build_rename_req(struct ldb_request **ret_req,
/* [<][>][^][v][top][bottom][index][help] */
910 struct ldb_context *ldb,
911 void *mem_ctx,
912 struct ldb_dn *olddn,
913 struct ldb_dn *newdn,
914 struct ldb_control **controls,
915 void *context,
916 ldb_request_callback_t callback,
917 struct ldb_request *parent)
918 {
919 struct ldb_request *req;
920
921 *ret_req = NULL;
922
923 req = talloc(mem_ctx, struct ldb_request);
924 if (req == NULL) {
925 ldb_set_errstring(ldb, "Out of Memory");
926 return LDB_ERR_OPERATIONS_ERROR;
927 }
928
929 req->operation = LDB_RENAME;
930 req->op.rename.olddn = olddn;
931 req->op.rename.newdn = newdn;
932 req->controls = controls;
933 req->context = context;
934 req->callback = callback;
935
936 ldb_set_timeout_from_prev_req(ldb, parent, req);
937
938 req->handle = ldb_handle_new(req, ldb);
939 if (req->handle == NULL) {
940 ldb_oom(ldb);
941 return LDB_ERR_OPERATIONS_ERROR;
942 }
943
944 *ret_req = req;
945
946 return LDB_SUCCESS;
947 }
948
949 int ldb_extended_default_callback(struct ldb_request *req,
/* [<][>][^][v][top][bottom][index][help] */
950 struct ldb_reply *ares)
951 {
952 struct ldb_result *res;
953
954 res = talloc_get_type(req->context, struct ldb_result);
955
956 if (!ares) {
957 return ldb_request_done(req, LDB_ERR_OPERATIONS_ERROR);
958 }
959 if (ares->error != LDB_SUCCESS) {
960 return ldb_request_done(req, ares->error);
961 }
962
963 if (ares->type == LDB_REPLY_DONE) {
964
965 /* TODO: we should really support controls on entries and referrals too! */
966 res->extended = talloc_move(res, &ares->response);
967 res->controls = talloc_move(res, &ares->controls);
968
969 talloc_free(ares);
970 return ldb_request_done(req, LDB_SUCCESS);
971 }
972
973 talloc_free(ares);
974 ldb_set_errstring(req->handle->ldb, "Invalid reply type!");
975 return ldb_request_done(req, LDB_ERR_OPERATIONS_ERROR);
976 }
977
978 int ldb_build_extended_req(struct ldb_request **ret_req,
/* [<][>][^][v][top][bottom][index][help] */
979 struct ldb_context *ldb,
980 void *mem_ctx,
981 const char *oid,
982 void *data,
983 struct ldb_control **controls,
984 void *context,
985 ldb_request_callback_t callback,
986 struct ldb_request *parent)
987 {
988 struct ldb_request *req;
989
990 *ret_req = NULL;
991
992 req = talloc(mem_ctx, struct ldb_request);
993 if (req == NULL) {
994 ldb_set_errstring(ldb, "Out of Memory");
995 return LDB_ERR_OPERATIONS_ERROR;
996 }
997
998 req->operation = LDB_EXTENDED;
999 req->op.extended.oid = oid;
1000 req->op.extended.data = data;
1001 req->controls = controls;
1002 req->context = context;
1003 req->callback = callback;
1004
1005 ldb_set_timeout_from_prev_req(ldb, parent, req);
1006
1007 req->handle = ldb_handle_new(req, ldb);
1008 if (req->handle == NULL) {
1009 ldb_oom(ldb);
1010 return LDB_ERR_OPERATIONS_ERROR;
1011 }
1012
1013 *ret_req = req;
1014
1015 return LDB_SUCCESS;
1016 }
1017
1018 int ldb_extended(struct ldb_context *ldb,
/* [<][>][^][v][top][bottom][index][help] */
1019 const char *oid,
1020 void *data,
1021 struct ldb_result **_res)
1022 {
1023 struct ldb_request *req;
1024 int ret;
1025 struct ldb_result *res;
1026
1027 *_res = NULL;
1028
1029 res = talloc_zero(ldb, struct ldb_result);
1030 if (!res) {
1031 return LDB_ERR_OPERATIONS_ERROR;
1032 }
1033
1034 ret = ldb_build_extended_req(&req, ldb, ldb,
1035 oid, data, NULL,
1036 res, ldb_extended_default_callback,
1037 NULL);
1038 if (ret != LDB_SUCCESS) goto done;
1039
1040 ldb_set_timeout(ldb, req, 0); /* use default timeout */
1041
1042 ret = ldb_request(ldb, req);
1043
1044 if (ret == LDB_SUCCESS) {
1045 ret = ldb_wait(req->handle, LDB_WAIT_ALL);
1046 }
1047
1048 talloc_free(req);
1049
1050 done:
1051 if (ret != LDB_SUCCESS) {
1052 talloc_free(res);
1053 }
1054
1055 *_res = res;
1056 return ret;
1057 }
1058
1059 /*
1060 note that ldb_search() will automatically replace a NULL 'base' value
1061 with the defaultNamingContext from the rootDSE if available.
1062 */
1063 int ldb_search(struct ldb_context *ldb, TALLOC_CTX *mem_ctx,
/* [<][>][^][v][top][bottom][index][help] */
1064 struct ldb_result **result, struct ldb_dn *base,
1065 enum ldb_scope scope, const char * const *attrs,
1066 const char *exp_fmt, ...)
1067 {
1068 struct ldb_request *req;
1069 struct ldb_result *res;
1070 char *expression;
1071 va_list ap;
1072 int ret;
1073
1074 expression = NULL;
1075 *result = NULL;
1076 req = NULL;
1077
1078 res = talloc_zero(mem_ctx, struct ldb_result);
1079 if (!res) {
1080 return LDB_ERR_OPERATIONS_ERROR;
1081 }
1082
1083 if (exp_fmt) {
1084 va_start(ap, exp_fmt);
1085 expression = talloc_vasprintf(mem_ctx, exp_fmt, ap);
1086 va_end(ap);
1087
1088 if (!expression) {
1089 talloc_free(res);
1090 return LDB_ERR_OPERATIONS_ERROR;
1091 }
1092 }
1093
1094 ret = ldb_build_search_req(&req, ldb, mem_ctx,
1095 base?base:ldb_get_default_basedn(ldb),
1096 scope,
1097 expression,
1098 attrs,
1099 NULL,
1100 res,
1101 ldb_search_default_callback,
1102 NULL);
1103
1104 if (ret != LDB_SUCCESS) goto done;
1105
1106 ret = ldb_request(ldb, req);
1107
1108 if (ret == LDB_SUCCESS) {
1109 ret = ldb_wait(req->handle, LDB_WAIT_ALL);
1110 }
1111
1112 done:
1113 if (ret != LDB_SUCCESS) {
1114 talloc_free(res);
1115 res = NULL;
1116 }
1117
1118 talloc_free(expression);
1119 talloc_free(req);
1120
1121 *result = res;
1122 return ret;
1123 }
1124
1125 /*
1126 add a record to the database. Will fail if a record with the given class
1127 and key already exists
1128 */
1129 int ldb_add(struct ldb_context *ldb,
/* [<][>][^][v][top][bottom][index][help] */
1130 const struct ldb_message *message)
1131 {
1132 struct ldb_request *req;
1133 int ret;
1134
1135 ret = ldb_msg_sanity_check(ldb, message);
1136 if (ret != LDB_SUCCESS) {
1137 return ret;
1138 }
1139
1140 ret = ldb_build_add_req(&req, ldb, ldb,
1141 message,
1142 NULL,
1143 NULL,
1144 ldb_op_default_callback,
1145 NULL);
1146
1147 if (ret != LDB_SUCCESS) return ret;
1148
1149 /* do request and autostart a transaction */
1150 ret = ldb_autotransaction_request(ldb, req);
1151
1152 talloc_free(req);
1153 return ret;
1154 }
1155
1156 /*
1157 modify the specified attributes of a record
1158 */
1159 int ldb_modify(struct ldb_context *ldb,
/* [<][>][^][v][top][bottom][index][help] */
1160 const struct ldb_message *message)
1161 {
1162 struct ldb_request *req;
1163 int ret;
1164
1165 ret = ldb_msg_sanity_check(ldb, message);
1166 if (ret != LDB_SUCCESS) {
1167 return ret;
1168 }
1169
1170 ret = ldb_build_mod_req(&req, ldb, ldb,
1171 message,
1172 NULL,
1173 NULL,
1174 ldb_op_default_callback,
1175 NULL);
1176
1177 if (ret != LDB_SUCCESS) return ret;
1178
1179 /* do request and autostart a transaction */
1180 ret = ldb_autotransaction_request(ldb, req);
1181
1182 talloc_free(req);
1183 return ret;
1184 }
1185
1186
1187 /*
1188 delete a record from the database
1189 */
1190 int ldb_delete(struct ldb_context *ldb, struct ldb_dn *dn)
/* [<][>][^][v][top][bottom][index][help] */
1191 {
1192 struct ldb_request *req;
1193 int ret;
1194
1195 ret = ldb_build_del_req(&req, ldb, ldb,
1196 dn,
1197 NULL,
1198 NULL,
1199 ldb_op_default_callback,
1200 NULL);
1201
1202 if (ret != LDB_SUCCESS) return ret;
1203
1204 /* do request and autostart a transaction */
1205 ret = ldb_autotransaction_request(ldb, req);
1206
1207 talloc_free(req);
1208 return ret;
1209 }
1210
1211 /*
1212 rename a record in the database
1213 */
1214 int ldb_rename(struct ldb_context *ldb,
/* [<][>][^][v][top][bottom][index][help] */
1215 struct ldb_dn *olddn, struct ldb_dn *newdn)
1216 {
1217 struct ldb_request *req;
1218 int ret;
1219
1220 ret = ldb_build_rename_req(&req, ldb, ldb,
1221 olddn,
1222 newdn,
1223 NULL,
1224 NULL,
1225 ldb_op_default_callback,
1226 NULL);
1227
1228 if (ret != LDB_SUCCESS) return ret;
1229
1230 /* do request and autostart a transaction */
1231 ret = ldb_autotransaction_request(ldb, req);
1232
1233 talloc_free(req);
1234 return ret;
1235 }
1236
1237
1238 /*
1239 return the global sequence number
1240 */
1241 int ldb_sequence_number(struct ldb_context *ldb,
/* [<][>][^][v][top][bottom][index][help] */
1242 enum ldb_sequence_type type, uint64_t *seq_num)
1243 {
1244 struct ldb_seqnum_request *seq;
1245 struct ldb_seqnum_result *seqr;
1246 struct ldb_result *res;
1247 TALLOC_CTX *tmp_ctx;
1248 int ret;
1249
1250 *seq_num = 0;
1251
1252 tmp_ctx = talloc_zero(ldb, struct ldb_request);
1253 if (tmp_ctx == NULL) {
1254 ldb_set_errstring(ldb, "Out of Memory");
1255 return LDB_ERR_OPERATIONS_ERROR;
1256 }
1257 seq = talloc_zero(tmp_ctx, struct ldb_seqnum_request);
1258 if (seq == NULL) {
1259 ldb_set_errstring(ldb, "Out of Memory");
1260 ret = LDB_ERR_OPERATIONS_ERROR;
1261 goto done;
1262 }
1263 seq->type = type;
1264
1265 ret = ldb_extended(ldb, LDB_EXTENDED_SEQUENCE_NUMBER, seq, &res);
1266 if (ret != LDB_SUCCESS) {
1267 goto done;
1268 }
1269 talloc_steal(tmp_ctx, res);
1270
1271 if (strcmp(LDB_EXTENDED_SEQUENCE_NUMBER, res->extended->oid) != 0) {
1272 ldb_set_errstring(ldb, "Invalid OID in reply");
1273 ret = LDB_ERR_OPERATIONS_ERROR;
1274 goto done;
1275 }
1276 seqr = talloc_get_type(res->extended->data,
1277 struct ldb_seqnum_result);
1278 *seq_num = seqr->seq_num;
1279
1280 done:
1281 talloc_free(tmp_ctx);
1282 return ret;
1283 }
1284
1285 /*
1286 return extended error information
1287 */
1288 const char *ldb_errstring(struct ldb_context *ldb)
/* [<][>][^][v][top][bottom][index][help] */
1289 {
1290 if (ldb->err_string) {
1291 return ldb->err_string;
1292 }
1293
1294 return NULL;
1295 }
1296
1297 /*
1298 return a string explaining what a ldb error constant meancs
1299 */
1300 const char *ldb_strerror(int ldb_err)
/* [<][>][^][v][top][bottom][index][help] */
1301 {
1302 switch (ldb_err) {
1303 case LDB_SUCCESS:
1304 return "Success";
1305 case LDB_ERR_OPERATIONS_ERROR:
1306 return "Operations error";
1307 case LDB_ERR_PROTOCOL_ERROR:
1308 return "Protocol error";
1309 case LDB_ERR_TIME_LIMIT_EXCEEDED:
1310 return "Time limit exceeded";
1311 case LDB_ERR_SIZE_LIMIT_EXCEEDED:
1312 return "Size limit exceeded";
1313 case LDB_ERR_COMPARE_FALSE:
1314 return "Compare false";
1315 case LDB_ERR_COMPARE_TRUE:
1316 return "Compare true";
1317 case LDB_ERR_AUTH_METHOD_NOT_SUPPORTED:
1318 return "Auth method not supported";
1319 case LDB_ERR_STRONG_AUTH_REQUIRED:
1320 return "Strong auth required";
1321 /* 9 RESERVED */
1322 case LDB_ERR_REFERRAL:
1323 return "Referral error";
1324 case LDB_ERR_ADMIN_LIMIT_EXCEEDED:
1325 return "Admin limit exceeded";
1326 case LDB_ERR_UNSUPPORTED_CRITICAL_EXTENSION:
1327 return "Unsupported critical extension";
1328 case LDB_ERR_CONFIDENTIALITY_REQUIRED:
1329 return "Confidentiality required";
1330 case LDB_ERR_SASL_BIND_IN_PROGRESS:
1331 return "SASL bind in progress";
1332 case LDB_ERR_NO_SUCH_ATTRIBUTE:
1333 return "No such attribute";
1334 case LDB_ERR_UNDEFINED_ATTRIBUTE_TYPE:
1335 return "Undefined attribute type";
1336 case LDB_ERR_INAPPROPRIATE_MATCHING:
1337 return "Inappropriate matching";
1338 case LDB_ERR_CONSTRAINT_VIOLATION:
1339 return "Constraint violation";
1340 case LDB_ERR_ATTRIBUTE_OR_VALUE_EXISTS:
1341 return "Attribute or value exists";
1342 case LDB_ERR_INVALID_ATTRIBUTE_SYNTAX:
1343 return "Invalid attribute syntax";
1344 /* 22-31 unused */
1345 case LDB_ERR_NO_SUCH_OBJECT:
1346 return "No such object";
1347 case LDB_ERR_ALIAS_PROBLEM:
1348 return "Alias problem";
1349 case LDB_ERR_INVALID_DN_SYNTAX:
1350 return "Invalid DN syntax";
1351 /* 35 RESERVED */
1352 case LDB_ERR_ALIAS_DEREFERENCING_PROBLEM:
1353 return "Alias dereferencing problem";
1354 /* 37-47 unused */
1355 case LDB_ERR_INAPPROPRIATE_AUTHENTICATION:
1356 return "Inappropriate authentication";
1357 case LDB_ERR_INVALID_CREDENTIALS:
1358 return "Invalid credentials";
1359 case LDB_ERR_INSUFFICIENT_ACCESS_RIGHTS:
1360 return "insufficient access rights";
1361 case LDB_ERR_BUSY:
1362 return "Busy";
1363 case LDB_ERR_UNAVAILABLE:
1364 return "Unavailable";
1365 case LDB_ERR_UNWILLING_TO_PERFORM:
1366 return "Unwilling to perform";
1367 case LDB_ERR_LOOP_DETECT:
1368 return "Loop detect";
1369 /* 55-63 unused */
1370 case LDB_ERR_NAMING_VIOLATION:
1371 return "Naming violation";
1372 case LDB_ERR_OBJECT_CLASS_VIOLATION:
1373 return "Object class violation";
1374 case LDB_ERR_NOT_ALLOWED_ON_NON_LEAF:
1375 return "Not allowed on non-leaf";
1376 case LDB_ERR_NOT_ALLOWED_ON_RDN:
1377 return "Not allowed on RDN";
1378 case LDB_ERR_ENTRY_ALREADY_EXISTS:
1379 return "Entry already exists";
1380 case LDB_ERR_OBJECT_CLASS_MODS_PROHIBITED:
1381 return "Object class mods prohibited";
1382 /* 70 RESERVED FOR CLDAP */
1383 case LDB_ERR_AFFECTS_MULTIPLE_DSAS:
1384 return "Affects multiple DSAs";
1385 /* 72-79 unused */
1386 case LDB_ERR_OTHER:
1387 return "Other";
1388 }
1389
1390 return "Unknown error";
1391 }
1392
1393 /*
1394 set backend specific opaque parameters
1395 */
1396 int ldb_set_opaque(struct ldb_context *ldb, const char *name, void *value)
/* [<][>][^][v][top][bottom][index][help] */
1397 {
1398 struct ldb_opaque *o;
1399
1400 /* allow updating an existing value */
1401 for (o=ldb->opaque;o;o=o->next) {
1402 if (strcmp(o->name, name) == 0) {
1403 o->value = value;
1404 return LDB_SUCCESS;
1405 }
1406 }
1407
1408 o = talloc(ldb, struct ldb_opaque);
1409 if (o == NULL) {
1410 ldb_oom(ldb);
1411 return LDB_ERR_OTHER;
1412 }
1413 o->next = ldb->opaque;
1414 o->name = name;
1415 o->value = value;
1416 ldb->opaque = o;
1417 return LDB_SUCCESS;
1418 }
1419
1420 /*
1421 get a previously set opaque value
1422 */
1423 void *ldb_get_opaque(struct ldb_context *ldb, const char *name)
/* [<][>][^][v][top][bottom][index][help] */
1424 {
1425 struct ldb_opaque *o;
1426 for (o=ldb->opaque;o;o=o->next) {
1427 if (strcmp(o->name, name) == 0) {
1428 return o->value;
1429 }
1430 }
1431 return NULL;
1432 }