?  search:
summary | log | graphiclog1 | graphiclog2 | commit | commitdiff | tree | refs | edit | fork
blame | history | raw | HEAD
r21761: - Give more detail on LDAP client library failures (make it clear
[Samba.git] / source / lib / ldb / ldb_ildap / ldb_ildap.c
blobf5642f83034196d85c437d48d9d1d03a02a4c14c
1 /*
2 ldb database library - ildap backend
3
4 Copyright (C) Andrew Tridgell 2005
5 Copyright (C) Simo Sorce 2006
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 2 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, write to the Free Software
23 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
24 */
25
26 /*
27 * Name: ldb_ildap
28 *
29 * Component: ldb ildap backend
30 *
31 * Description: This is a ldb backend for the internal ldap
32 * client library in Samba4. By using this backend we are
33 * independent of a system ldap library
34 *
35 * Author: Andrew Tridgell
36 *
37 * Modifications:
38 *
39 * - description: make the module use asyncronous calls
40 * date: Feb 2006
41 * author: Simo Sorce
42 */
43
44
45 #include "includes.h"
46 #include "ldb/include/includes.h"
47
48 #include "lib/events/events.h"
49 #include "libcli/ldap/ldap.h"
50 #include "libcli/ldap/ldap_client.h"
51 #include "auth/auth.h"
52 #include "auth/credentials/credentials.h"
53
54 struct ildb_private {
55 struct ldap_connection *ldap;
56 struct ldb_module *module;
57 };
58
59 struct ildb_context {
60 struct ildb_private *ildb;
61 struct ldb_handle *handle;
62 struct ldap_request *req;
63 void *context;
64 int (*callback)(struct ldb_context *, void *, struct ldb_reply *);
65 };
66
67 /*
68 convert a ldb_message structure to a list of ldap_mod structures
69 ready for ildap_add() or ildap_modify()
70 */
71 static struct ldap_mod **ildb_msg_to_mods(void *mem_ctx, int *num_mods,
72 const struct ldb_message *msg, int use_flags)
73 {
74 struct ldap_mod **mods;
75 unsigned int i;
76 int n = 0;
77
78 /* allocate maximum number of elements needed */
79 mods = talloc_array(mem_ctx, struct ldap_mod *, msg->num_elements+1);
80 if (!mods) {
81 errno = ENOMEM;
82 return NULL;
83 }
84 mods[0] = NULL;
85
86 for (i = 0; i < msg->num_elements; i++) {
87 const struct ldb_message_element *el = &msg->elements[i];
88
89 mods[n] = talloc(mods, struct ldap_mod);
90 if (!mods[n]) {
91 goto failed;
92 }
93 mods[n + 1] = NULL;
94 mods[n]->type = 0;
95 mods[n]->attrib = *el;
96 if (use_flags) {
97 switch (el->flags & LDB_FLAG_MOD_MASK) {
98 case LDB_FLAG_MOD_ADD:
99 mods[n]->type = LDAP_MODIFY_ADD;
100 break;
101 case LDB_FLAG_MOD_DELETE:
102 mods[n]->type = LDAP_MODIFY_DELETE;
103 break;
104 case LDB_FLAG_MOD_REPLACE:
105 mods[n]->type = LDAP_MODIFY_REPLACE;
106 break;
107 }
108 }
109 n++;
110 }
111
112 *num_mods = n;
113 return mods;
114
115 failed:
116 talloc_free(mods);
117 return NULL;
118 }
119
120
121 /*
122 map an ildap NTSTATUS to a ldb error code
123 */
124 static int ildb_map_error(struct ildb_private *ildb, NTSTATUS status)
125 {
126 TALLOC_CTX *mem_ctx = talloc_new(ildb);
127 if (NT_STATUS_IS_OK(status)) {
128 return LDB_SUCCESS;
129 }
130 if (!mem_ctx) {
131 ldb_oom(ildb->module->ldb);
132 return LDB_ERR_OPERATIONS_ERROR;
133 }
134 ldb_set_errstring(ildb->module->ldb, ldap_errstr(ildb->ldap, mem_ctx, status));
135 talloc_free(mem_ctx);
136 if (NT_STATUS_IS_LDAP(status)) {
137 return NT_STATUS_LDAP_CODE(status);
138 }
139 return LDB_ERR_OPERATIONS_ERROR;
140 }
141
142 static void ildb_request_timeout(struct event_context *ev, struct timed_event *te,
143 struct timeval t, void *private_data)
144 {
145 struct ildb_context *ac = talloc_get_type(private_data, struct ildb_context);
146 struct ldb_handle *handle = ac->handle;
147
148 if (ac->req->state == LDAP_REQUEST_PENDING) {
149 DLIST_REMOVE(ac->req->conn->pending, ac->req);
150 }
151
152 handle->status = LDB_ERR_TIME_LIMIT_EXCEEDED;
153
154 return;
155 }
156
157 static void ildb_callback(struct ldap_request *req)
158 {
159 struct ildb_context *ac = talloc_get_type(req->async.private_data, struct ildb_context);
160 struct ldb_handle *handle = ac->handle;
161 struct ildb_private *ildb = ac->ildb;
162 NTSTATUS status;
163 int i;
164
165 handle->status = LDB_SUCCESS;
166
167 if (!NT_STATUS_IS_OK(req->status)) {
168 handle->status = ildb_map_error(ildb, req->status);
169 return;
170 }
171
172 if (req->num_replies < 1) {
173 handle->status = LDB_ERR_OPERATIONS_ERROR;
174 return;
175 }
176
177 switch (req->type) {
178
179 case LDAP_TAG_ModifyRequest:
180 if (req->replies[0]->type != LDAP_TAG_ModifyResponse) {
181 handle->status = LDB_ERR_PROTOCOL_ERROR;
182 return;
183 }
184 status = ldap_check_response(req->conn, &req->replies[0]->r.GeneralResult);
185 handle->status = ildb_map_error(ildb, status);
186 if (ac->callback && handle->status == LDB_SUCCESS) {
187 /* FIXME: build a corresponding ares to pass on */
188 handle->status = ac->callback(ac->ildb->module->ldb, ac->context, NULL);
189 }
190 handle->state = LDB_ASYNC_DONE;
191 break;
192
193 case LDAP_TAG_AddRequest:
194 if (req->replies[0]->type != LDAP_TAG_AddResponse) {
195 handle->status = LDB_ERR_PROTOCOL_ERROR;
196 return;
197 }
198 status = ldap_check_response(req->conn, &req->replies[0]->r.GeneralResult);
199 handle->status = ildb_map_error(ildb, status);
200 if (ac->callback && handle->status == LDB_SUCCESS) {
201 /* FIXME: build a corresponding ares to pass on */
202 handle->status = ac->callback(ac->ildb->module->ldb, ac->context, NULL);
203 }
204 handle->state = LDB_ASYNC_DONE;
205 break;
206
207 case LDAP_TAG_DelRequest:
208 if (req->replies[0]->type != LDAP_TAG_DelResponse) {
209 handle->status = LDB_ERR_PROTOCOL_ERROR;
210 return;
211 }
212 status = ldap_check_response(req->conn, &req->replies[0]->r.GeneralResult);
213 handle->status = ildb_map_error(ildb, status);
214 if (ac->callback && handle->status == LDB_SUCCESS) {
215 /* FIXME: build a corresponding ares to pass on */
216 handle->status = ac->callback(ac->ildb->module->ldb, ac->context, NULL);
217 }
218 handle->state = LDB_ASYNC_DONE;
219 break;
220
221 case LDAP_TAG_ModifyDNRequest:
222 if (req->replies[0]->type != LDAP_TAG_ModifyDNResponse) {
223 handle->status = LDB_ERR_PROTOCOL_ERROR;
224 return;
225 }
226 status = ldap_check_response(req->conn, &req->replies[0]->r.GeneralResult);
227 handle->status = ildb_map_error(ildb, status);
228 if (ac->callback && handle->status == LDB_SUCCESS) {
229 /* FIXME: build a corresponding ares to pass on */
230 handle->status = ac->callback(ac->ildb->module->ldb, ac->context, NULL);
231 }
232 handle->state = LDB_ASYNC_DONE;
233 break;
234
235 case LDAP_TAG_SearchRequest:
236 /* loop over all messages */
237 for (i = 0; i < req->num_replies; i++) {
238 struct ldap_SearchResEntry *search;
239 struct ldb_reply *ares = NULL;
240 struct ldap_message *msg;
241 int ret;
242
243 ares = talloc_zero(ac, struct ldb_reply);
244 if (!ares) {
245 handle->status = LDB_ERR_OPERATIONS_ERROR;
246 return;
247 }
248
249 msg = req->replies[i];
250 switch (msg->type) {
251
252 case LDAP_TAG_SearchResultDone:
253
254 status = ldap_check_response(req->conn, &msg->r.GeneralResult);
255 if (!NT_STATUS_IS_OK(status)) {
256 handle->status = ildb_map_error(ildb, status);
257 return;
258 }
259
260 ares->controls = talloc_move(ares, &msg->controls);
261 if (msg->r.SearchResultDone.resultcode) {
262 if (msg->r.SearchResultDone.errormessage) {
263 ldb_set_errstring(ac->ildb->module->ldb, msg->r.SearchResultDone.errormessage);
264 }
265 }
266
267 handle->status = msg->r.SearchResultDone.resultcode;
268 handle->state = LDB_ASYNC_DONE;
269 ares->type = LDB_REPLY_DONE;
270 break;
271
272 case LDAP_TAG_SearchResultEntry:
273
274
275 ares->message = ldb_msg_new(ares);
276 if (!ares->message) {
277 handle->status = LDB_ERR_OPERATIONS_ERROR;
278 return;
279 }
280
281 search = &(msg->r.SearchResultEntry);
282
283 ares->message->dn = ldb_dn_new(ares->message, ac->ildb->module->ldb, search->dn);
284 if ( ! ldb_dn_validate(ares->message->dn)) {
285 handle->status = LDB_ERR_OPERATIONS_ERROR;
286 return;
287 }
288 ares->message->num_elements = search->num_attributes;
289 ares->message->elements = talloc_move(ares->message,
290 &search->attributes);
291
292 handle->status = LDB_SUCCESS;
293 handle->state = LDB_ASYNC_PENDING;
294 ares->type = LDB_REPLY_ENTRY;
295 break;
296
297 case LDAP_TAG_SearchResultReference:
298
299 ares->referral = talloc_strdup(ares, msg->r.SearchResultReference.referral);
300
301 handle->status = LDB_SUCCESS;
302 handle->state = LDB_ASYNC_PENDING;
303 ares->type = LDB_REPLY_REFERRAL;
304 break;
305
306 default:
307 /* TAG not handled, fail ! */
308 handle->status = LDB_ERR_PROTOCOL_ERROR;
309 return;
310 }
311
312 ret = ac->callback(ac->ildb->module->ldb, ac->context, ares);
313 if (ret) {
314 handle->status = ret;
315 }
316 }
317
318 talloc_free(req->replies);
319 req->replies = NULL;
320 req->num_replies = 0;
321
322 break;
323
324 default:
325 handle->status = LDB_ERR_PROTOCOL_ERROR;
326 return;
327 }
328 }
329
330 static struct ildb_context *init_ildb_handle(struct ildb_private *ildb,
331 struct ldb_request *req)
332 {
333 struct ildb_context *ildb_ac;
334 struct ldb_handle *h;
335
336 h = talloc_zero(req, struct ldb_handle);
337 if (h == NULL) {
338 ldb_set_errstring(ildb->module->ldb, "Out of Memory");
339 return NULL;
340 }
341
342 h->module = ildb->module;
343
344 ildb_ac = talloc(h, struct ildb_context);
345 if (ildb_ac == NULL) {
346 ldb_set_errstring(ildb->module->ldb, "Out of Memory");
347 talloc_free(h);
348 return NULL;
349 }
350
351 h->private_data = ildb_ac;
352
353 h->state = LDB_ASYNC_INIT;
354 h->status = LDB_SUCCESS;
355
356 ildb_ac->ildb = ildb;
357 ildb_ac->handle = h;
358 ildb_ac->context = req->context;
359 ildb_ac->callback = req->callback;
360
361 req->handle = h;
362 return ildb_ac;
363 }
364
365 static int ildb_request_send(struct ildb_private *ildb, struct ldap_message *msg, struct ldb_request *r)
366 {
367 struct ildb_context *ildb_ac = init_ildb_handle(ildb, r);
368 struct ldap_request *req;
369
370 if (!ildb_ac) {
371 return LDB_ERR_OPERATIONS_ERROR;
372 }
373
374 req = ldap_request_send(ildb->ldap, msg);
375 if (req == NULL) {
376 ldb_set_errstring(ildb->module->ldb, "async send request failed");
377 return LDB_ERR_OPERATIONS_ERROR;
378 }
379 ildb_ac->req = talloc_steal(ildb_ac, req);
380
381 if (!req->conn) {
382 ldb_set_errstring(ildb->module->ldb, "connection to remote LDAP server dropped?");
383 return LDB_ERR_OPERATIONS_ERROR;
384 }
385
386 talloc_free(req->time_event);
387 req->time_event = NULL;
388 if (r->timeout) {
389 req->time_event = event_add_timed(req->conn->event.event_ctx, ildb_ac,
390 timeval_current_ofs(r->timeout, 0),
391 ildb_request_timeout, ildb_ac);
392 }
393
394 req->async.fn = ildb_callback;
395 req->async.private_data = ildb_ac;
396
397 return LDB_SUCCESS;
398 }
399
400 static int ildb_request_noop(struct ildb_private *ildb, struct ldb_request *req)
401 {
402 struct ildb_context *ildb_ac = init_ildb_handle(ildb, req);
403 int ret = LDB_SUCCESS;
404
405 if (!ildb_ac) {
406 return LDB_ERR_OPERATIONS_ERROR;
407 }
408
409 if (ildb_ac->callback) {
410 ret = ildb_ac->callback(ildb->module->ldb, ildb_ac->context, NULL);
411 }
412 ildb_ac->handle->state = LDB_ASYNC_DONE;
413 return ret;
414 }
415
416 /*
417 search for matching records using an asynchronous function
418 */
419 static int ildb_search(struct ldb_module *module, struct ldb_request *req)
420 {
421 struct ildb_private *ildb = talloc_get_type(module->private_data, struct ildb_private);
422 struct ldap_message *msg;
423 int n;
424
425 req->handle = NULL;
426
427 if (!req->callback || !req->context) {
428 ldb_set_errstring(module->ldb, "Async interface called with NULL callback function or NULL context");
429 return LDB_ERR_OPERATIONS_ERROR;
430 }
431
432 if (req->op.search.tree == NULL) {
433 ldb_set_errstring(module->ldb, "Invalid expression parse tree");
434 return LDB_ERR_OPERATIONS_ERROR;
435 }
436
437 msg = new_ldap_message(req);
438 if (msg == NULL) {
439 ldb_set_errstring(module->ldb, "Out of Memory");
440 return LDB_ERR_OPERATIONS_ERROR;
441 }
442
443 msg->type = LDAP_TAG_SearchRequest;
444
445 if (req->op.search.base == NULL) {
446 msg->r.SearchRequest.basedn = talloc_strdup(msg, "");
447 } else {
448 msg->r.SearchRequest.basedn = ldb_dn_alloc_linearized(msg, req->op.search.base);
449 }
450 if (msg->r.SearchRequest.basedn == NULL) {
451 ldb_set_errstring(module->ldb, "Unable to determine baseDN");
452 talloc_free(msg);
453 return LDB_ERR_OPERATIONS_ERROR;
454 }
455
456 if (req->op.search.scope == LDB_SCOPE_DEFAULT) {
457 msg->r.SearchRequest.scope = LDB_SCOPE_SUBTREE;
458 } else {
459 msg->r.SearchRequest.scope = req->op.search.scope;
460 }
461
462 msg->r.SearchRequest.deref = LDAP_DEREFERENCE_NEVER;
463 msg->r.SearchRequest.timelimit = 0;
464 msg->r.SearchRequest.sizelimit = 0;
465 msg->r.SearchRequest.attributesonly = 0;
466 msg->r.SearchRequest.tree = discard_const(req->op.search.tree);
467
468 for (n = 0; req->op.search.attrs && req->op.search.attrs[n]; n++) /* noop */ ;
469 msg->r.SearchRequest.num_attributes = n;
470 msg->r.SearchRequest.attributes = discard_const(req->op.search.attrs);
471 msg->controls = req->controls;
472
473 return ildb_request_send(ildb, msg, req);
474 }
475
476 /*
477 add a record
478 */
479 static int ildb_add(struct ldb_module *module, struct ldb_request *req)
480 {
481 struct ildb_private *ildb = talloc_get_type(module->private_data, struct ildb_private);
482 struct ldap_message *msg;
483 struct ldap_mod **mods;
484 int i,n;
485
486 req->handle = NULL;
487
488 /* ignore ltdb specials */
489 if (ldb_dn_is_special(req->op.add.message->dn)) {
490 return ildb_request_noop(ildb, req);
491 }
492
493 msg = new_ldap_message(req);
494 if (msg == NULL) {
495 return LDB_ERR_OPERATIONS_ERROR;
496 }
497
498 msg->type = LDAP_TAG_AddRequest;
499
500 msg->r.AddRequest.dn = ldb_dn_alloc_linearized(msg, req->op.add.message->dn);
501 if (msg->r.AddRequest.dn == NULL) {
502 talloc_free(msg);
503 return LDB_ERR_INVALID_DN_SYNTAX;
504 }
505
506 mods = ildb_msg_to_mods(msg, &n, req->op.add.message, 0);
507 if (mods == NULL) {
508 talloc_free(msg);
509 return LDB_ERR_OPERATIONS_ERROR;
510 }
511
512 msg->r.AddRequest.num_attributes = n;
513 msg->r.AddRequest.attributes = talloc_array(msg, struct ldb_message_element, n);
514 if (msg->r.AddRequest.attributes == NULL) {
515 talloc_free(msg);
516 return LDB_ERR_OPERATIONS_ERROR;
517 }
518
519 for (i = 0; i < n; i++) {
520 msg->r.AddRequest.attributes[i] = mods[i]->attrib;
521 }
522
523 return ildb_request_send(ildb, msg, req);
524 }
525
526 /*
527 modify a record
528 */
529 static int ildb_modify(struct ldb_module *module, struct ldb_request *req)
530 {
531 struct ildb_private *ildb = talloc_get_type(module->private_data, struct ildb_private);
532 struct ldap_message *msg;
533 struct ldap_mod **mods;
534 int i,n;
535
536 req->handle = NULL;
537
538 /* ignore ltdb specials */
539 if (ldb_dn_is_special(req->op.mod.message->dn)) {
540 return ildb_request_noop(ildb, req);
541 }
542
543 msg = new_ldap_message(req);
544 if (msg == NULL) {
545 return LDB_ERR_OPERATIONS_ERROR;
546 }
547
548 msg->type = LDAP_TAG_ModifyRequest;
549
550 msg->r.ModifyRequest.dn = ldb_dn_alloc_linearized(msg, req->op.mod.message->dn);
551 if (msg->r.ModifyRequest.dn == NULL) {
552 talloc_free(msg);
553 return LDB_ERR_INVALID_DN_SYNTAX;
554 }
555
556 mods = ildb_msg_to_mods(msg, &n, req->op.mod.message, 1);
557 if (mods == NULL) {
558 talloc_free(msg);
559 return LDB_ERR_OPERATIONS_ERROR;
560 }
561
562 msg->r.ModifyRequest.num_mods = n;
563 msg->r.ModifyRequest.mods = talloc_array(msg, struct ldap_mod, n);
564 if (msg->r.ModifyRequest.mods == NULL) {
565 talloc_free(msg);
566 return LDB_ERR_OPERATIONS_ERROR;
567 }
568
569 for (i = 0; i < n; i++) {
570 msg->r.ModifyRequest.mods[i] = *mods[i];
571 }
572
573 return ildb_request_send(ildb, msg, req);
574 }
575
576 /*
577 delete a record
578 */
579 static int ildb_delete(struct ldb_module *module, struct ldb_request *req)
580 {
581 struct ildb_private *ildb = talloc_get_type(module->private_data, struct ildb_private);
582 struct ldap_message *msg;
583
584 req->handle = NULL;
585
586 /* ignore ltdb specials */
587 if (ldb_dn_is_special(req->op.del.dn)) {
588 return ildb_request_noop(ildb, req);
589 }
590
591 msg = new_ldap_message(req);
592 if (msg == NULL) {
593 return LDB_ERR_OPERATIONS_ERROR;
594 }
595
596 msg->type = LDAP_TAG_DelRequest;
597
598 msg->r.DelRequest.dn = ldb_dn_alloc_linearized(msg, req->op.del.dn);
599 if (msg->r.DelRequest.dn == NULL) {
600 talloc_free(msg);
601 return LDB_ERR_INVALID_DN_SYNTAX;
602 }
603
604 return ildb_request_send(ildb, msg, req);
605 }
606
607 /*
608 rename a record
609 */
610 static int ildb_rename(struct ldb_module *module, struct ldb_request *req)
611 {
612 struct ildb_private *ildb = talloc_get_type(module->private_data, struct ildb_private);
613 struct ldap_message *msg;
614
615 req->handle = NULL;
616
617 /* ignore ltdb specials */
618 if (ldb_dn_is_special(req->op.rename.olddn) || ldb_dn_is_special(req->op.rename.newdn)) {
619 return ildb_request_noop(ildb, req);
620 }
621
622 msg = new_ldap_message(req);
623 if (msg == NULL) {
624 return LDB_ERR_OPERATIONS_ERROR;
625 }
626
627 msg->type = LDAP_TAG_ModifyDNRequest;
628 msg->r.ModifyDNRequest.dn = ldb_dn_alloc_linearized(msg, req->op.rename.olddn);
629 if (msg->r.ModifyDNRequest.dn == NULL) {
630 talloc_free(msg);
631 return LDB_ERR_INVALID_DN_SYNTAX;
632 }
633
634 msg->r.ModifyDNRequest.newrdn =
635 talloc_asprintf(msg, "%s=%s",
636 ldb_dn_get_rdn_name(req->op.rename.newdn),
637 ldb_dn_escape_value(msg, *ldb_dn_get_rdn_val(req->op.rename.newdn)));
638 if (msg->r.ModifyDNRequest.newrdn == NULL) {
639 talloc_free(msg);
640 return LDB_ERR_OPERATIONS_ERROR;
641 }
642
643 msg->r.ModifyDNRequest.newsuperior =
644 ldb_dn_alloc_linearized(msg, ldb_dn_get_parent(msg, req->op.rename.newdn));
645 if (msg->r.ModifyDNRequest.newsuperior == NULL) {
646 talloc_free(msg);
647 return LDB_ERR_INVALID_DN_SYNTAX;
648 }
649
650 msg->r.ModifyDNRequest.deleteolddn = True;
651
652 return ildb_request_send(ildb, msg, req);
653 }
654
655 static int ildb_start_trans(struct ldb_module *module)
656 {
657 /* TODO implement a local locking mechanism here */
658
659 return LDB_SUCCESS;
660 }
661
662 static int ildb_end_trans(struct ldb_module *module)
663 {
664 /* TODO implement a local transaction mechanism here */
665
666 return LDB_SUCCESS;
667 }
668
669 static int ildb_del_trans(struct ldb_module *module)
670 {
671 /* TODO implement a local locking mechanism here */
672
673 return LDB_SUCCESS;
674 }
675
676 static int ildb_request(struct ldb_module *module, struct ldb_request *req)
677 {
678 return LDB_ERR_OPERATIONS_ERROR;
679 }
680
681 static int ildb_wait(struct ldb_handle *handle, enum ldb_wait_type type)
682 {
683 struct ildb_context *ac = talloc_get_type(handle->private_data, struct ildb_context);
684
685 if (handle->state == LDB_ASYNC_DONE) {
686 return handle->status;
687 }
688
689 if (!ac) {
690 return LDB_ERR_OPERATIONS_ERROR;
691 }
692
693 handle->state = LDB_ASYNC_INIT;
694
695 switch(type) {
696 case LDB_WAIT_NONE:
697 if (event_loop_once(ac->req->conn->event.event_ctx) != 0) {
698 return LDB_ERR_OTHER;
699 }
700 break;
701 case LDB_WAIT_ALL:
702 while (handle->status == LDB_SUCCESS && handle->state != LDB_ASYNC_DONE) {
703 if (event_loop_once(ac->req->conn->event.event_ctx) != 0) {
704 return LDB_ERR_OTHER;
705 }
706 }
707 break;
708 default:
709 return LDB_ERR_OPERATIONS_ERROR;
710 }
711
712 return handle->status;
713 }
714
715 static const struct ldb_module_ops ildb_ops = {
716 .name = "ldap",
717 .search = ildb_search,
718 .add = ildb_add,
719 .modify = ildb_modify,
720 .del = ildb_delete,
721 .rename = ildb_rename,
722 .request = ildb_request,
723 .start_transaction = ildb_start_trans,
724 .end_transaction = ildb_end_trans,
725 .del_transaction = ildb_del_trans,
726 .wait = ildb_wait
727 };
728
729 /*
730 connect to the database
731 */
732 static int ildb_connect(struct ldb_context *ldb, const char *url,
733 unsigned int flags, const char *options[],
734 struct ldb_module **_module)
735 {
736 struct ldb_module *module;
737 struct ildb_private *ildb;
738 NTSTATUS status;
739 struct cli_credentials *creds;
740
741 module = talloc(ldb, struct ldb_module);
742 if (!module) {
743 ldb_oom(ldb);
744 return -1;
745 }
746 talloc_set_name_const(module, "ldb_ildap backend");
747 module->ldb = ldb;
748 module->prev = module->next = NULL;
749 module->private_data = NULL;
750 module->ops = &ildb_ops;
751
752 ildb = talloc(module, struct ildb_private);
753 if (!ildb) {
754 ldb_oom(ldb);
755 goto failed;
756 }
757 module->private_data = ildb;
758 ildb->module = module;
759 ildb->ldap = ldap4_new_connection(ildb, ldb_get_opaque(ldb, "EventContext"));
760 if (!ildb->ldap) {
761 ldb_oom(ldb);
762 goto failed;
763 }
764
765 if (flags & LDB_FLG_RECONNECT) {
766 ldap_set_reconn_params(ildb->ldap, 10);
767 }
768
769 status = ldap_connect(ildb->ldap, url);
770 if (!NT_STATUS_IS_OK(status)) {
771 ldb_debug(ldb, LDB_DEBUG_ERROR, "Failed to connect to ldap URL '%s' - %s\n",
772 url, ldap_errstr(ildb->ldap, module, status));
773 goto failed;
774 }
775
776 /* caller can optionally setup credentials using the opaque token 'credentials' */
777 creds = talloc_get_type(ldb_get_opaque(ldb, "credentials"), struct cli_credentials);
778 if (creds == NULL) {
779 struct auth_session_info *session_info = talloc_get_type(ldb_get_opaque(ldb, "sessionInfo"), struct auth_session_info);
780 if (session_info) {
781 creds = session_info->credentials;
782 }
783 }
784
785 if (creds != NULL && cli_credentials_authentication_requested(creds)) {
786 const char *bind_dn = cli_credentials_get_bind_dn(creds);
787 if (bind_dn) {
788 const char *password = cli_credentials_get_password(creds);
789 status = ldap_bind_simple(ildb->ldap, bind_dn, password);
790 if (!NT_STATUS_IS_OK(status)) {
791 ldb_debug(ldb, LDB_DEBUG_ERROR, "Failed to bind - %s\n",
792 ldap_errstr(ildb->ldap, module, status));
793 goto failed;
794 }
795 } else {
796 status = ldap_bind_sasl(ildb->ldap, creds);
797 if (!NT_STATUS_IS_OK(status)) {
798 ldb_debug(ldb, LDB_DEBUG_ERROR, "Failed to bind - %s\n",
799 ldap_errstr(ildb->ldap, module, status));
800 goto failed;
801 }
802 }
803 }
804
805 *_module = module;
806 return 0;
807
808 failed:
809 talloc_free(module);
810 return -1;
811 }
812
813 int ldb_ildap_init(void)
814 {
815 return ldb_register_backend("ldap", ildb_connect) +
816 ldb_register_backend("ldapi", ildb_connect) +
817 ldb_register_backend("ldaps", ildb_connect);
818 }
Samba GIT mirror