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s3: libsmbclient: Fix smbc_stat() to return ENOENT on a non-existent file.
[Samba.git] / source4 / ldap_server / ldap_backend.c
blob9429ba1561f6a477c57eeafce5735e051ce6b040
1 /*
2 Unix SMB/CIFS implementation.
3 LDAP server
4 Copyright (C) Stefan Metzmacher 2004
5 Copyright (C) Matthias Dieter Wallnöfer 2009
6
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 3 of the License, or
10 (at your option) any later version.
11
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
16
17 You should have received a copy of the GNU General Public License
18 along with this program. If not, see <http://www.gnu.org/licenses/>.
19 */
20
21 #include "includes.h"
22 #include "ldap_server/ldap_server.h"
23 #include "../lib/util/dlinklist.h"
24 #include "auth/credentials/credentials.h"
25 #include "auth/gensec/gensec.h"
26 #include "auth/gensec/gensec_internal.h" /* TODO: remove this */
27 #include "auth/common_auth.h"
28 #include "param/param.h"
29 #include "samba/service_stream.h"
30 #include "dsdb/samdb/samdb.h"
31 #include <ldb_errors.h>
32 #include <ldb_module.h>
33 #include "ldb_wrap.h"
34 #include "lib/tsocket/tsocket.h"
35 #include "libcli/ldap/ldap_proto.h"
36 #include "source4/auth/auth.h"
37
38 static int map_ldb_error(TALLOC_CTX *mem_ctx, int ldb_err,
39 const char *add_err_string, const char **errstring)
40 {
41 WERROR err;
42
43 /* Certain LDB modules need to return very special WERROR codes. Proof
44 * for them here and if they exist skip the rest of the mapping. */
45 if (add_err_string != NULL) {
46 char *endptr;
47 strtol(add_err_string, &endptr, 16);
48 if (endptr != add_err_string) {
49 *errstring = add_err_string;
50 return ldb_err;
51 }
52 }
53
54 /* Otherwise we calculate here a generic, but appropriate WERROR. */
55
56 switch (ldb_err) {
57 case LDB_SUCCESS:
58 err = WERR_OK;
59 break;
60 case LDB_ERR_OPERATIONS_ERROR:
61 err = WERR_DS_OPERATIONS_ERROR;
62 break;
63 case LDB_ERR_PROTOCOL_ERROR:
64 err = WERR_DS_PROTOCOL_ERROR;
65 break;
66 case LDB_ERR_TIME_LIMIT_EXCEEDED:
67 err = WERR_DS_TIMELIMIT_EXCEEDED;
68 break;
69 case LDB_ERR_SIZE_LIMIT_EXCEEDED:
70 err = WERR_DS_SIZELIMIT_EXCEEDED;
71 break;
72 case LDB_ERR_COMPARE_FALSE:
73 err = WERR_DS_COMPARE_FALSE;
74 break;
75 case LDB_ERR_COMPARE_TRUE:
76 err = WERR_DS_COMPARE_TRUE;
77 break;
78 case LDB_ERR_AUTH_METHOD_NOT_SUPPORTED:
79 err = WERR_DS_AUTH_METHOD_NOT_SUPPORTED;
80 break;
81 case LDB_ERR_STRONG_AUTH_REQUIRED:
82 err = WERR_DS_STRONG_AUTH_REQUIRED;
83 break;
84 case LDB_ERR_REFERRAL:
85 err = WERR_DS_REFERRAL;
86 break;
87 case LDB_ERR_ADMIN_LIMIT_EXCEEDED:
88 err = WERR_DS_ADMIN_LIMIT_EXCEEDED;
89 break;
90 case LDB_ERR_UNSUPPORTED_CRITICAL_EXTENSION:
91 err = WERR_DS_UNAVAILABLE_CRIT_EXTENSION;
92 break;
93 case LDB_ERR_CONFIDENTIALITY_REQUIRED:
94 err = WERR_DS_CONFIDENTIALITY_REQUIRED;
95 break;
96 case LDB_ERR_SASL_BIND_IN_PROGRESS:
97 err = WERR_DS_BUSY;
98 break;
99 case LDB_ERR_NO_SUCH_ATTRIBUTE:
100 err = WERR_DS_NO_ATTRIBUTE_OR_VALUE;
101 break;
102 case LDB_ERR_UNDEFINED_ATTRIBUTE_TYPE:
103 err = WERR_DS_ATTRIBUTE_TYPE_UNDEFINED;
104 break;
105 case LDB_ERR_INAPPROPRIATE_MATCHING:
106 err = WERR_DS_INAPPROPRIATE_MATCHING;
107 break;
108 case LDB_ERR_CONSTRAINT_VIOLATION:
109 err = WERR_DS_CONSTRAINT_VIOLATION;
110 break;
111 case LDB_ERR_ATTRIBUTE_OR_VALUE_EXISTS:
112 err = WERR_DS_ATTRIBUTE_OR_VALUE_EXISTS;
113 break;
114 case LDB_ERR_INVALID_ATTRIBUTE_SYNTAX:
115 err = WERR_DS_INVALID_ATTRIBUTE_SYNTAX;
116 break;
117 case LDB_ERR_NO_SUCH_OBJECT:
118 err = WERR_DS_NO_SUCH_OBJECT;
119 break;
120 case LDB_ERR_ALIAS_PROBLEM:
121 err = WERR_DS_ALIAS_PROBLEM;
122 break;
123 case LDB_ERR_INVALID_DN_SYNTAX:
124 err = WERR_DS_INVALID_DN_SYNTAX;
125 break;
126 case LDB_ERR_ALIAS_DEREFERENCING_PROBLEM:
127 err = WERR_DS_ALIAS_DEREF_PROBLEM;
128 break;
129 case LDB_ERR_INAPPROPRIATE_AUTHENTICATION:
130 err = WERR_DS_INAPPROPRIATE_AUTH;
131 break;
132 case LDB_ERR_INVALID_CREDENTIALS:
133 err = WERR_ACCESS_DENIED;
134 break;
135 case LDB_ERR_INSUFFICIENT_ACCESS_RIGHTS:
136 err = WERR_DS_INSUFF_ACCESS_RIGHTS;
137 break;
138 case LDB_ERR_BUSY:
139 err = WERR_DS_BUSY;
140 break;
141 case LDB_ERR_UNAVAILABLE:
142 err = WERR_DS_UNAVAILABLE;
143 break;
144 case LDB_ERR_UNWILLING_TO_PERFORM:
145 err = WERR_DS_UNWILLING_TO_PERFORM;
146 break;
147 case LDB_ERR_LOOP_DETECT:
148 err = WERR_DS_LOOP_DETECT;
149 break;
150 case LDB_ERR_NAMING_VIOLATION:
151 err = WERR_DS_NAMING_VIOLATION;
152 break;
153 case LDB_ERR_OBJECT_CLASS_VIOLATION:
154 err = WERR_DS_OBJ_CLASS_VIOLATION;
155 break;
156 case LDB_ERR_NOT_ALLOWED_ON_NON_LEAF:
157 err = WERR_DS_CANT_ON_NON_LEAF;
158 break;
159 case LDB_ERR_NOT_ALLOWED_ON_RDN:
160 err = WERR_DS_CANT_ON_RDN;
161 break;
162 case LDB_ERR_ENTRY_ALREADY_EXISTS:
163 err = WERR_DS_OBJ_STRING_NAME_EXISTS;
164 break;
165 case LDB_ERR_OBJECT_CLASS_MODS_PROHIBITED:
166 err = WERR_DS_CANT_MOD_OBJ_CLASS;
167 break;
168 case LDB_ERR_AFFECTS_MULTIPLE_DSAS:
169 err = WERR_DS_AFFECTS_MULTIPLE_DSAS;
170 break;
171 default:
172 err = WERR_DS_GENERIC_ERROR;
173 break;
174 }
175
176 *errstring = talloc_asprintf(mem_ctx, "%08X: %s", W_ERROR_V(err),
177 add_err_string != NULL ? add_err_string : ldb_strerror(ldb_err));
178
179 /* result is 1:1 for now */
180 return ldb_err;
181 }
182
183 /*
184 connect to the sam database
185 */
186 int ldapsrv_backend_Init(struct ldapsrv_connection *conn,
187 char **errstring)
188 {
189 int ret = samdb_connect_url(conn,
190 conn->connection->event.ctx,
191 conn->lp_ctx,
192 conn->session_info,
193 conn->global_catalog ? LDB_FLG_RDONLY : 0,
194 "sam.ldb",
195 conn->connection->remote_address,
196 &conn->ldb,
197 errstring);
198 if (ret != LDB_SUCCESS) {
199 return ret;
200 }
201
202 if (conn->server_credentials) {
203 struct gensec_security *gensec_security = NULL;
204 const char **sasl_mechs = NULL;
205 NTSTATUS status;
206
207 status = samba_server_gensec_start(conn,
208 conn->connection->event.ctx,
209 conn->connection->msg_ctx,
210 conn->lp_ctx,
211 conn->server_credentials,
212 "ldap",
213 &gensec_security);
214 if (!NT_STATUS_IS_OK(status)) {
215 DBG_ERR("samba_server_gensec_start failed: %s\n",
216 nt_errstr(status));
217 return LDB_ERR_OPERATIONS_ERROR;
218 }
219
220 /* ldb can have a different lifetime to conn, so we
221 need to ensure that sasl_mechs lives as long as the
222 ldb does */
223 sasl_mechs = gensec_security_sasl_names(gensec_security,
224 conn->ldb);
225 TALLOC_FREE(gensec_security);
226 if (sasl_mechs == NULL) {
227 DBG_ERR("Failed to get sasl mechs!\n");
228 return LDB_ERR_OPERATIONS_ERROR;
229 }
230
231 ldb_set_opaque(conn->ldb, "supportedSASLMechanisms", sasl_mechs);
232 }
233
234 return LDB_SUCCESS;
235 }
236
237 struct ldapsrv_reply *ldapsrv_init_reply(struct ldapsrv_call *call, uint8_t type)
238 {
239 struct ldapsrv_reply *reply;
240
241 reply = talloc_zero(call, struct ldapsrv_reply);
242 if (!reply) {
243 return NULL;
244 }
245 reply->msg = talloc_zero(reply, struct ldap_message);
246 if (reply->msg == NULL) {
247 talloc_free(reply);
248 return NULL;
249 }
250
251 reply->msg->messageid = call->request->messageid;
252 reply->msg->type = type;
253 reply->msg->controls = NULL;
254
255 return reply;
256 }
257
258 /*
259 * Encode a reply to an LDAP client as ASN.1, free the original memory
260 */
261 static NTSTATUS ldapsrv_encode(TALLOC_CTX *mem_ctx,
262 struct ldapsrv_reply *reply)
263 {
264 bool bret = ldap_encode(reply->msg,
265 samba_ldap_control_handlers(),
266 &reply->blob,
267 mem_ctx);
268 TALLOC_FREE(reply->msg);
269 if (!bret) {
270 DEBUG(0,("Failed to encode ldap reply of type %d: "
271 "ldap_encode() failed\n",
272 reply->msg->type));
273 return NT_STATUS_NO_MEMORY;
274 }
275
276 talloc_set_name_const(reply->blob.data,
277 "Outgoing, encoded single LDAP reply");
278
279 return NT_STATUS_OK;
280 }
281
282 /*
283 * Queue a reply (encoding it also), even if it would exceed the
284 * limit. This allows the error packet with LDAP_SIZE_LIMIT_EXCEEDED
285 * to be sent
286 */
287 static NTSTATUS ldapsrv_queue_reply_forced(struct ldapsrv_call *call,
288 struct ldapsrv_reply *reply)
289 {
290 NTSTATUS status = ldapsrv_encode(call, reply);
291
292 if (NT_STATUS_IS_OK(status)) {
293 DLIST_ADD_END(call->replies, reply);
294 }
295 return status;
296 }
297
298 /*
299 * Queue a reply (encoding it also) but check we do not send more than
300 * LDAP_SERVER_MAX_REPLY_SIZE of responses as a way to limit the
301 * amount of data a client can make us allocate.
302 */
303 NTSTATUS ldapsrv_queue_reply(struct ldapsrv_call *call, struct ldapsrv_reply *reply)
304 {
305 NTSTATUS status = ldapsrv_encode(call, reply);
306
307 if (!NT_STATUS_IS_OK(status)) {
308 return status;
309 }
310
311 if (call->reply_size > call->reply_size + reply->blob.length
312 || call->reply_size + reply->blob.length > LDAP_SERVER_MAX_REPLY_SIZE) {
313 DBG_WARNING("Refusing to queue LDAP search response size "
314 "of more than %zu bytes\n",
315 LDAP_SERVER_MAX_REPLY_SIZE);
316 TALLOC_FREE(reply->blob.data);
317 return NT_STATUS_FILE_TOO_LARGE;
318 }
319
320 call->reply_size += reply->blob.length;
321
322 DLIST_ADD_END(call->replies, reply);
323
324 return status;
325 }
326
327 static NTSTATUS ldapsrv_unwilling(struct ldapsrv_call *call, int error)
328 {
329 struct ldapsrv_reply *reply;
330 struct ldap_ExtendedResponse *r;
331
332 DEBUG(10,("Unwilling type[%d] id[%d]\n", call->request->type, call->request->messageid));
333
334 reply = ldapsrv_init_reply(call, LDAP_TAG_ExtendedResponse);
335 if (!reply) {
336 return NT_STATUS_NO_MEMORY;
337 }
338
339 r = &reply->msg->r.ExtendedResponse;
340 r->response.resultcode = error;
341 r->response.dn = NULL;
342 r->response.errormessage = NULL;
343 r->response.referral = NULL;
344 r->oid = NULL;
345 r->value = NULL;
346
347 ldapsrv_queue_reply(call, reply);
348 return NT_STATUS_OK;
349 }
350
351 static int ldapsrv_add_with_controls(struct ldapsrv_call *call,
352 const struct ldb_message *message,
353 struct ldb_control **controls,
354 struct ldb_result *res)
355 {
356 struct ldb_context *ldb = call->conn->ldb;
357 struct ldb_request *req;
358 int ret;
359
360 ret = ldb_msg_sanity_check(ldb, message);
361 if (ret != LDB_SUCCESS) {
362 return ret;
363 }
364
365 ret = ldb_build_add_req(&req, ldb, ldb,
366 message,
367 controls,
368 res,
369 ldb_modify_default_callback,
370 NULL);
371
372 if (ret != LDB_SUCCESS) return ret;
373
374 if (call->conn->global_catalog) {
375 return ldb_error(ldb, LDB_ERR_UNWILLING_TO_PERFORM, "modify forbidden on global catalog port");
376 }
377 ldb_request_add_control(req, DSDB_CONTROL_NO_GLOBAL_CATALOG, false, NULL);
378
379 ret = ldb_transaction_start(ldb);
380 if (ret != LDB_SUCCESS) {
381 return ret;
382 }
383
384 if (!call->conn->is_privileged) {
385 ldb_req_mark_untrusted(req);
386 }
387
388 LDB_REQ_SET_LOCATION(req);
389
390 ret = ldb_request(ldb, req);
391 if (ret == LDB_SUCCESS) {
392 ret = ldb_wait(req->handle, LDB_WAIT_ALL);
393 }
394
395 if (ret == LDB_SUCCESS) {
396 ret = ldb_transaction_commit(ldb);
397 }
398 else {
399 ldb_transaction_cancel(ldb);
400 }
401
402 talloc_free(req);
403 return ret;
404 }
405
406 /* create and execute a modify request */
407 static int ldapsrv_mod_with_controls(struct ldapsrv_call *call,
408 const struct ldb_message *message,
409 struct ldb_control **controls,
410 struct ldb_result *res)
411 {
412 struct ldb_context *ldb = call->conn->ldb;
413 struct ldb_request *req;
414 int ret;
415
416 ret = ldb_msg_sanity_check(ldb, message);
417 if (ret != LDB_SUCCESS) {
418 return ret;
419 }
420
421 ret = ldb_build_mod_req(&req, ldb, ldb,
422 message,
423 controls,
424 res,
425 ldb_modify_default_callback,
426 NULL);
427
428 if (ret != LDB_SUCCESS) {
429 return ret;
430 }
431
432 if (call->conn->global_catalog) {
433 return ldb_error(ldb, LDB_ERR_UNWILLING_TO_PERFORM, "modify forbidden on global catalog port");
434 }
435 ldb_request_add_control(req, DSDB_CONTROL_NO_GLOBAL_CATALOG, false, NULL);
436
437 ret = ldb_transaction_start(ldb);
438 if (ret != LDB_SUCCESS) {
439 return ret;
440 }
441
442 if (!call->conn->is_privileged) {
443 ldb_req_mark_untrusted(req);
444 }
445
446 LDB_REQ_SET_LOCATION(req);
447
448 ret = ldb_request(ldb, req);
449 if (ret == LDB_SUCCESS) {
450 ret = ldb_wait(req->handle, LDB_WAIT_ALL);
451 }
452
453 if (ret == LDB_SUCCESS) {
454 ret = ldb_transaction_commit(ldb);
455 }
456 else {
457 ldb_transaction_cancel(ldb);
458 }
459
460 talloc_free(req);
461 return ret;
462 }
463
464 /* create and execute a delete request */
465 static int ldapsrv_del_with_controls(struct ldapsrv_call *call,
466 struct ldb_dn *dn,
467 struct ldb_control **controls,
468 struct ldb_result *res)
469 {
470 struct ldb_context *ldb = call->conn->ldb;
471 struct ldb_request *req;
472 int ret;
473
474 ret = ldb_build_del_req(&req, ldb, ldb,
475 dn,
476 controls,
477 res,
478 ldb_modify_default_callback,
479 NULL);
480
481 if (ret != LDB_SUCCESS) return ret;
482
483 if (call->conn->global_catalog) {
484 return ldb_error(ldb, LDB_ERR_UNWILLING_TO_PERFORM, "modify forbidden on global catalog port");
485 }
486 ldb_request_add_control(req, DSDB_CONTROL_NO_GLOBAL_CATALOG, false, NULL);
487
488 ret = ldb_transaction_start(ldb);
489 if (ret != LDB_SUCCESS) {
490 return ret;
491 }
492
493 if (!call->conn->is_privileged) {
494 ldb_req_mark_untrusted(req);
495 }
496
497 LDB_REQ_SET_LOCATION(req);
498
499 ret = ldb_request(ldb, req);
500 if (ret == LDB_SUCCESS) {
501 ret = ldb_wait(req->handle, LDB_WAIT_ALL);
502 }
503
504 if (ret == LDB_SUCCESS) {
505 ret = ldb_transaction_commit(ldb);
506 }
507 else {
508 ldb_transaction_cancel(ldb);
509 }
510
511 talloc_free(req);
512 return ret;
513 }
514
515 static int ldapsrv_rename_with_controls(struct ldapsrv_call *call,
516 struct ldb_dn *olddn,
517 struct ldb_dn *newdn,
518 struct ldb_control **controls,
519 struct ldb_result *res)
520 {
521 struct ldb_context *ldb = call->conn->ldb;
522 struct ldb_request *req;
523 int ret;
524
525 ret = ldb_build_rename_req(&req, ldb, ldb,
526 olddn,
527 newdn,
528 controls,
529 res,
530 ldb_modify_default_callback,
531 NULL);
532
533 if (ret != LDB_SUCCESS) return ret;
534
535 if (call->conn->global_catalog) {
536 return ldb_error(ldb, LDB_ERR_UNWILLING_TO_PERFORM, "modify forbidden on global catalog port");
537 }
538 ldb_request_add_control(req, DSDB_CONTROL_NO_GLOBAL_CATALOG, false, NULL);
539
540 ret = ldb_transaction_start(ldb);
541 if (ret != LDB_SUCCESS) {
542 return ret;
543 }
544
545 if (!call->conn->is_privileged) {
546 ldb_req_mark_untrusted(req);
547 }
548
549 LDB_REQ_SET_LOCATION(req);
550
551 ret = ldb_request(ldb, req);
552 if (ret == LDB_SUCCESS) {
553 ret = ldb_wait(req->handle, LDB_WAIT_ALL);
554 }
555
556 if (ret == LDB_SUCCESS) {
557 ret = ldb_transaction_commit(ldb);
558 }
559 else {
560 ldb_transaction_cancel(ldb);
561 }
562
563 talloc_free(req);
564 return ret;
565 }
566
567
568
569 struct ldapsrv_context {
570 struct ldapsrv_call *call;
571 int extended_type;
572 bool attributesonly;
573 struct ldb_control **controls;
574 size_t count; /* For notificaiton only */
575 };
576
577 static int ldap_server_search_callback(struct ldb_request *req, struct ldb_reply *ares)
578 {
579 struct ldapsrv_context *ctx = talloc_get_type(req->context, struct ldapsrv_context);
580 struct ldapsrv_call *call = ctx->call;
581 struct ldb_context *ldb = call->conn->ldb;
582 unsigned int j;
583 struct ldapsrv_reply *ent_r = NULL;
584 struct ldap_SearchResEntry *ent;
585 int ret;
586 NTSTATUS status;
587
588 if (!ares) {
589 return ldb_request_done(req, LDB_ERR_OPERATIONS_ERROR);
590 }
591 if (ares->error != LDB_SUCCESS) {
592 return ldb_request_done(req, ares->error);
593 }
594
595 switch (ares->type) {
596 case LDB_REPLY_ENTRY:
597 {
598 struct ldb_message *msg = ares->message;
599 ent_r = ldapsrv_init_reply(call, LDAP_TAG_SearchResultEntry);
600 if (ent_r == NULL) {
601 return ldb_oom(ldb);
602 }
603
604 ctx->count++;
605
606 /*
607 * Put the LDAP search response data under ent_r->msg
608 * so we can free that later once encoded
609 */
610 talloc_steal(ent_r->msg, msg);
611
612 ent = &ent_r->msg->r.SearchResultEntry;
613 ent->dn = ldb_dn_get_extended_linearized(ent_r, msg->dn,
614 ctx->extended_type);
615 ent->num_attributes = 0;
616 ent->attributes = NULL;
617 if (msg->num_elements == 0) {
618 goto queue_reply;
619 }
620 ent->num_attributes = msg->num_elements;
621 ent->attributes = talloc_array(ent_r, struct ldb_message_element, ent->num_attributes);
622 if (ent->attributes == NULL) {
623 return ldb_oom(ldb);
624 }
625
626 for (j=0; j < ent->num_attributes; j++) {
627 ent->attributes[j].name = msg->elements[j].name;
628 ent->attributes[j].num_values = 0;
629 ent->attributes[j].values = NULL;
630 if (ctx->attributesonly && (msg->elements[j].num_values == 0)) {
631 continue;
632 }
633 ent->attributes[j].num_values = msg->elements[j].num_values;
634 ent->attributes[j].values = msg->elements[j].values;
635 }
636 queue_reply:
637 status = ldapsrv_queue_reply(call, ent_r);
638 if (NT_STATUS_EQUAL(status, NT_STATUS_FILE_TOO_LARGE)) {
639 ret = ldb_request_done(req,
640 LDB_ERR_SIZE_LIMIT_EXCEEDED);
641 ldb_asprintf_errstring(ldb,
642 "LDAP search response size "
643 "limited to %zu bytes\n",
644 LDAP_SERVER_MAX_REPLY_SIZE);
645 } else if (!NT_STATUS_IS_OK(status)) {
646 ret = ldb_request_done(req,
647 ldb_operr(ldb));
648 } else {
649 ret = LDB_SUCCESS;
650 }
651 break;
652 }
653 case LDB_REPLY_REFERRAL:
654 {
655 struct ldap_SearchResRef *ent_ref;
656
657 /*
658 * TODO: This should be handled by the notification
659 * module not here
660 */
661 if (call->notification.busy) {
662 ret = LDB_SUCCESS;
663 break;
664 }
665
666 ent_r = ldapsrv_init_reply(call, LDAP_TAG_SearchResultReference);
667 if (ent_r == NULL) {
668 return ldb_oom(ldb);
669 }
670
671 /*
672 * Put the LDAP referral data under ent_r->msg
673 * so we can free that later once encoded
674 */
675 talloc_steal(ent_r->msg, ares->referral);
676
677 ent_ref = &ent_r->msg->r.SearchResultReference;
678 ent_ref->referral = ares->referral;
679
680 status = ldapsrv_queue_reply(call, ent_r);
681 if (!NT_STATUS_IS_OK(status)) {
682 ret = LDB_ERR_OPERATIONS_ERROR;
683 } else {
684 ret = LDB_SUCCESS;
685 }
686 break;
687 }
688 case LDB_REPLY_DONE:
689 {
690 /*
691 * We don't queue the reply for this one, we let that
692 * happen outside
693 */
694 ctx->controls = talloc_move(ctx, &ares->controls);
695
696 TALLOC_FREE(ares);
697 return ldb_request_done(req, LDB_SUCCESS);
698 }
699 default:
700 /* Doesn't happen */
701 ret = LDB_ERR_OPERATIONS_ERROR;
702 }
703 TALLOC_FREE(ares);
704
705 return ret;
706 }
707
708
709 static NTSTATUS ldapsrv_SearchRequest(struct ldapsrv_call *call)
710 {
711 struct ldap_SearchRequest *req = &call->request->r.SearchRequest;
712 struct ldap_Result *done;
713 struct ldapsrv_reply *done_r;
714 TALLOC_CTX *local_ctx;
715 struct ldapsrv_context *callback_ctx = NULL;
716 struct ldb_context *samdb = talloc_get_type(call->conn->ldb, struct ldb_context);
717 struct ldb_dn *basedn;
718 struct ldb_request *lreq;
719 struct ldb_control *search_control;
720 struct ldb_search_options_control *search_options;
721 struct ldb_control *extended_dn_control;
722 struct ldb_extended_dn_control *extended_dn_decoded = NULL;
723 struct ldb_control *notification_control = NULL;
724 enum ldb_scope scope = LDB_SCOPE_DEFAULT;
725 const char **attrs = NULL;
726 const char *scope_str, *errstr = NULL;
727 int result = -1;
728 int ldb_ret = -1;
729 unsigned int i;
730 int extended_type = 1;
731
732 /*
733 * Warn for searches that are longer than 1/4 of the
734 * search_timeout, being 30sec by default
735 */
736 struct timeval start_time = timeval_current();
737 struct timeval warning_time
738 = timeval_add(&start_time,
739 call->conn->limits.search_timeout / 4,
740 0);
741
742 local_ctx = talloc_new(call);
743 NT_STATUS_HAVE_NO_MEMORY(local_ctx);
744
745 basedn = ldb_dn_new(local_ctx, samdb, req->basedn);
746 NT_STATUS_HAVE_NO_MEMORY(basedn);
747
748 switch (req->scope) {
749 case LDAP_SEARCH_SCOPE_BASE:
750 scope_str = "BASE";
751 scope = LDB_SCOPE_BASE;
752 break;
753 case LDAP_SEARCH_SCOPE_SINGLE:
754 scope_str = "ONE";
755 scope = LDB_SCOPE_ONELEVEL;
756 break;
757 case LDAP_SEARCH_SCOPE_SUB:
758 scope_str = "SUB";
759 scope = LDB_SCOPE_SUBTREE;
760 break;
761 default:
762 result = LDAP_PROTOCOL_ERROR;
763 map_ldb_error(local_ctx, LDB_ERR_PROTOCOL_ERROR, NULL,
764 &errstr);
765 scope_str = "<Invalid scope>";
766 errstr = talloc_asprintf(local_ctx,
767 "%s. Invalid scope", errstr);
768 goto reply;
769 }
770 DEBUG(10,("SearchRequest: scope: [%s]\n", scope_str));
771
772 if (req->num_attributes >= 1) {
773 attrs = talloc_array(local_ctx, const char *, req->num_attributes+1);
774 NT_STATUS_HAVE_NO_MEMORY(attrs);
775
776 for (i=0; i < req->num_attributes; i++) {
777 DEBUG(10,("SearchRequest: attrs: [%s]\n",req->attributes[i]));
778 attrs[i] = req->attributes[i];
779 }
780 attrs[i] = NULL;
781 }
782
783 DEBUG(5,("ldb_request %s dn=%s filter=%s\n",
784 scope_str, req->basedn, ldb_filter_from_tree(call, req->tree)));
785
786 callback_ctx = talloc_zero(local_ctx, struct ldapsrv_context);
787 NT_STATUS_HAVE_NO_MEMORY(callback_ctx);
788 callback_ctx->call = call;
789 callback_ctx->extended_type = extended_type;
790 callback_ctx->attributesonly = req->attributesonly;
791
792 ldb_ret = ldb_build_search_req_ex(&lreq, samdb, local_ctx,
793 basedn, scope,
794 req->tree, attrs,
795 call->request->controls,
796 callback_ctx,
797 ldap_server_search_callback,
798 NULL);
799
800 if (ldb_ret != LDB_SUCCESS) {
801 goto reply;
802 }
803
804 if (call->conn->global_catalog) {
805 search_control = ldb_request_get_control(lreq, LDB_CONTROL_SEARCH_OPTIONS_OID);
806
807 search_options = NULL;
808 if (search_control) {
809 search_options = talloc_get_type(search_control->data, struct ldb_search_options_control);
810 search_options->search_options |= LDB_SEARCH_OPTION_PHANTOM_ROOT;
811 } else {
812 search_options = talloc(lreq, struct ldb_search_options_control);
813 NT_STATUS_HAVE_NO_MEMORY(search_options);
814 search_options->search_options = LDB_SEARCH_OPTION_PHANTOM_ROOT;
815 ldb_request_add_control(lreq, LDB_CONTROL_SEARCH_OPTIONS_OID, false, search_options);
816 }
817 } else {
818 ldb_request_add_control(lreq, DSDB_CONTROL_NO_GLOBAL_CATALOG, false, NULL);
819 }
820
821 extended_dn_control = ldb_request_get_control(lreq, LDB_CONTROL_EXTENDED_DN_OID);
822
823 if (extended_dn_control) {
824 if (extended_dn_control->data) {
825 extended_dn_decoded = talloc_get_type(extended_dn_control->data, struct ldb_extended_dn_control);
826 extended_type = extended_dn_decoded->type;
827 } else {
828 extended_type = 0;
829 }
830 callback_ctx->extended_type = extended_type;
831 }
832
833 notification_control = ldb_request_get_control(lreq, LDB_CONTROL_NOTIFICATION_OID);
834 if (notification_control != NULL) {
835 const struct ldapsrv_call *pc = NULL;
836 size_t count = 0;
837
838 for (pc = call->conn->pending_calls; pc != NULL; pc = pc->next) {
839 count += 1;
840 }
841
842 if (count >= call->conn->limits.max_notifications) {
843 DEBUG(10,("SearchRequest: error MaxNotificationPerConn\n"));
844 result = map_ldb_error(local_ctx,
845 LDB_ERR_ADMIN_LIMIT_EXCEEDED,
846 "MaxNotificationPerConn reached",
847 &errstr);
848 goto reply;
849 }
850
851 /*
852 * For now we need to do periodic retries on our own.
853 * As the dsdb_notification module will return after each run.
854 */
855 call->notification.busy = true;
856 }
857
858 {
859 const char *scheme = NULL;
860 switch (call->conn->referral_scheme) {
861 case LDAP_REFERRAL_SCHEME_LDAPS:
862 scheme = "ldaps";
863 break;
864 default:
865 scheme = "ldap";
866 }
867 ldb_ret = ldb_set_opaque(
868 samdb,
869 LDAP_REFERRAL_SCHEME_OPAQUE,
870 discard_const_p(char *, scheme));
871 if (ldb_ret != LDB_SUCCESS) {
872 goto reply;
873 }
874 }
875
876 {
877 time_t timeout = call->conn->limits.search_timeout;
878
879 if (timeout == 0
880 || (req->timelimit != 0
881 && req->timelimit < timeout))
882 {
883 timeout = req->timelimit;
884 }
885 ldb_set_timeout(samdb, lreq, timeout);
886 }
887
888 if (!call->conn->is_privileged) {
889 ldb_req_mark_untrusted(lreq);
890 }
891
892 LDB_REQ_SET_LOCATION(lreq);
893
894 ldb_ret = ldb_request(samdb, lreq);
895
896 if (ldb_ret != LDB_SUCCESS) {
897 goto reply;
898 }
899
900 ldb_ret = ldb_wait(lreq->handle, LDB_WAIT_ALL);
901
902 if (ldb_ret == LDB_SUCCESS) {
903 if (call->notification.busy) {
904 /* Move/Add it to the end */
905 DLIST_DEMOTE(call->conn->pending_calls, call);
906 call->notification.generation =
907 call->conn->service->notification.generation;
908
909 if (callback_ctx->count != 0) {
910 call->notification.generation += 1;
911 ldapsrv_notification_retry_setup(call->conn->service,
912 true);
913 }
914
915 talloc_free(local_ctx);
916 return NT_STATUS_OK;
917 }
918 }
919
920 reply:
921
922 /*
923 * This looks like duplicated code - because it is - but
924 * otherwise the work in the parameters will be done
925 * regardless, this way the functions only execute when the
926 * log level is set.
927 *
928 * The basedn is re-obtained as a string to escape it
929 */
930 if ((req->timelimit == 0 || call->conn->limits.search_timeout < req->timelimit)
931 && ldb_ret == LDB_ERR_TIME_LIMIT_EXCEEDED) {
932 struct dom_sid_buf sid_buf;
933 DBG_WARNING("MaxQueryDuration(%d) timeout exceeded "
934 "in SearchRequest by %s from %s filter: [%s] "
935 "basedn: [%s] "
936 "scope: [%s]\n",
937 call->conn->limits.search_timeout,
938 dom_sid_str_buf(&call->conn->session_info->security_token->sids[0],
939 &sid_buf),
940 tsocket_address_string(call->conn->connection->remote_address,
941 call),
942 ldb_filter_from_tree(call, req->tree),
943 ldb_dn_get_extended_linearized(call, basedn, 1),
944 scope_str);
945 for (i=0; i < req->num_attributes; i++) {
946 DBG_WARNING("MaxQueryDuration timeout exceeded attrs: [%s]\n",
947 req->attributes[i]);
948 }
949
950 } else if (timeval_expired(&warning_time)) {
951 struct dom_sid_buf sid_buf;
952 DBG_NOTICE("Long LDAP Query: Duration was %.2fs, "
953 "MaxQueryDuration(%d)/4 == %d "
954 "in SearchRequest by %s from %s filter: [%s] "
955 "basedn: [%s] "
956 "scope: [%s] "
957 "result: %s\n",
958 timeval_elapsed(&start_time),
959 call->conn->limits.search_timeout,
960 call->conn->limits.search_timeout / 4,
961 dom_sid_str_buf(&call->conn->session_info->security_token->sids[0],
962 &sid_buf),
963 tsocket_address_string(call->conn->connection->remote_address,
964 call),
965 ldb_filter_from_tree(call, req->tree),
966 ldb_dn_get_extended_linearized(call, basedn, 1),
967 scope_str,
968 ldb_strerror(ldb_ret));
969 for (i=0; i < req->num_attributes; i++) {
970 DBG_NOTICE("Long LDAP Query attrs: [%s]\n",
971 req->attributes[i]);
972 }
973 } else {
974 struct dom_sid_buf sid_buf;
975 DBG_INFO("LDAP Query: Duration was %.2fs, "
976 "SearchRequest by %s from %s filter: [%s] "
977 "basedn: [%s] "
978 "scope: [%s] "
979 "result: %s\n",
980 timeval_elapsed(&start_time),
981 dom_sid_str_buf(&call->conn->session_info->security_token->sids[0],
982 &sid_buf),
983 tsocket_address_string(call->conn->connection->remote_address,
984 call),
985 ldb_filter_from_tree(call, req->tree),
986 ldb_dn_get_extended_linearized(call, basedn, 1),
987 scope_str,
988 ldb_strerror(ldb_ret));
989 }
990
991 DLIST_REMOVE(call->conn->pending_calls, call);
992 call->notification.busy = false;
993
994 done_r = ldapsrv_init_reply(call, LDAP_TAG_SearchResultDone);
995 NT_STATUS_HAVE_NO_MEMORY(done_r);
996
997 done = &done_r->msg->r.SearchResultDone;
998 done->dn = NULL;
999 done->referral = NULL;
1000
1001 if (result != -1) {
1002 } else if (ldb_ret == LDB_SUCCESS) {
1003 if (callback_ctx->controls) {
1004 done_r->msg->controls = callback_ctx->controls;
1005 talloc_steal(done_r->msg, callback_ctx->controls);
1006 }
1007 result = LDB_SUCCESS;
1008 } else {
1009 DEBUG(10,("SearchRequest: error\n"));
1010 result = map_ldb_error(local_ctx, ldb_ret, ldb_errstring(samdb),
1011 &errstr);
1012 }
1013
1014 done->resultcode = result;
1015 done->errormessage = (errstr?talloc_strdup(done_r, errstr):NULL);
1016
1017 talloc_free(local_ctx);
1018
1019 return ldapsrv_queue_reply_forced(call, done_r);
1020 }
1021
1022 static NTSTATUS ldapsrv_ModifyRequest(struct ldapsrv_call *call)
1023 {
1024 struct ldap_ModifyRequest *req = &call->request->r.ModifyRequest;
1025 struct ldap_Result *modify_result;
1026 struct ldapsrv_reply *modify_reply;
1027 TALLOC_CTX *local_ctx;
1028 struct ldb_context *samdb = call->conn->ldb;
1029 struct ldb_message *msg = NULL;
1030 struct ldb_dn *dn;
1031 const char *errstr = NULL;
1032 int result = LDAP_SUCCESS;
1033 int ldb_ret;
1034 unsigned int i,j;
1035 struct ldb_result *res = NULL;
1036
1037 DEBUG(10, ("ModifyRequest"));
1038 DEBUGADD(10, (" dn: %s\n", req->dn));
1039
1040 local_ctx = talloc_named(call, 0, "ModifyRequest local memory context");
1041 NT_STATUS_HAVE_NO_MEMORY(local_ctx);
1042
1043 dn = ldb_dn_new(local_ctx, samdb, req->dn);
1044 NT_STATUS_HAVE_NO_MEMORY(dn);
1045
1046 DEBUG(10, ("ModifyRequest: dn: [%s]\n", req->dn));
1047
1048 msg = ldb_msg_new(local_ctx);
1049 NT_STATUS_HAVE_NO_MEMORY(msg);
1050
1051 msg->dn = dn;
1052
1053 if (req->num_mods > 0) {
1054 msg->num_elements = req->num_mods;
1055 msg->elements = talloc_array(msg, struct ldb_message_element, req->num_mods);
1056 NT_STATUS_HAVE_NO_MEMORY(msg->elements);
1057
1058 for (i=0; i < msg->num_elements; i++) {
1059 msg->elements[i].name = discard_const_p(char, req->mods[i].attrib.name);
1060 msg->elements[i].num_values = 0;
1061 msg->elements[i].values = NULL;
1062
1063 switch (req->mods[i].type) {
1064 default:
1065 result = LDAP_PROTOCOL_ERROR;
1066 map_ldb_error(local_ctx,
1067 LDB_ERR_PROTOCOL_ERROR, NULL, &errstr);
1068 errstr = talloc_asprintf(local_ctx,
1069 "%s. Invalid LDAP_MODIFY_* type", errstr);
1070 goto reply;
1071 case LDAP_MODIFY_ADD:
1072 msg->elements[i].flags = LDB_FLAG_MOD_ADD;
1073 break;
1074 case LDAP_MODIFY_DELETE:
1075 msg->elements[i].flags = LDB_FLAG_MOD_DELETE;
1076 break;
1077 case LDAP_MODIFY_REPLACE:
1078 msg->elements[i].flags = LDB_FLAG_MOD_REPLACE;
1079 break;
1080 }
1081
1082 msg->elements[i].num_values = req->mods[i].attrib.num_values;
1083 if (msg->elements[i].num_values > 0) {
1084 msg->elements[i].values = talloc_array(msg->elements, struct ldb_val,
1085 msg->elements[i].num_values);
1086 NT_STATUS_HAVE_NO_MEMORY(msg->elements[i].values);
1087
1088 for (j=0; j < msg->elements[i].num_values; j++) {
1089 msg->elements[i].values[j].length = req->mods[i].attrib.values[j].length;
1090 msg->elements[i].values[j].data = req->mods[i].attrib.values[j].data;
1091 }
1092 }
1093 }
1094 }
1095
1096 reply:
1097 modify_reply = ldapsrv_init_reply(call, LDAP_TAG_ModifyResponse);
1098 NT_STATUS_HAVE_NO_MEMORY(modify_reply);
1099
1100 if (result == LDAP_SUCCESS) {
1101 res = talloc_zero(local_ctx, struct ldb_result);
1102 NT_STATUS_HAVE_NO_MEMORY(res);
1103 ldb_ret = ldapsrv_mod_with_controls(call, msg, call->request->controls, res);
1104 result = map_ldb_error(local_ctx, ldb_ret, ldb_errstring(samdb),
1105 &errstr);
1106 }
1107
1108 modify_result = &modify_reply->msg->r.ModifyResponse;
1109 modify_result->dn = NULL;
1110 if ((res != NULL) && (res->refs != NULL)) {
1111 modify_result->resultcode = map_ldb_error(local_ctx,
1112 LDB_ERR_REFERRAL,
1113 NULL, &errstr);
1114 modify_result->errormessage = (errstr?talloc_strdup(modify_reply, errstr):NULL);
1115 modify_result->referral = talloc_strdup(call, *res->refs);
1116 } else {
1117 modify_result->resultcode = result;
1118 modify_result->errormessage = (errstr?talloc_strdup(modify_reply, errstr):NULL);
1119 modify_result->referral = NULL;
1120 }
1121 talloc_free(local_ctx);
1122
1123 return ldapsrv_queue_reply(call, modify_reply);
1124
1125 }
1126
1127 static NTSTATUS ldapsrv_AddRequest(struct ldapsrv_call *call)
1128 {
1129 struct ldap_AddRequest *req = &call->request->r.AddRequest;
1130 struct ldap_Result *add_result;
1131 struct ldapsrv_reply *add_reply;
1132 TALLOC_CTX *local_ctx;
1133 struct ldb_context *samdb = call->conn->ldb;
1134 struct ldb_message *msg = NULL;
1135 struct ldb_dn *dn;
1136 const char *errstr = NULL;
1137 int result = LDAP_SUCCESS;
1138 int ldb_ret;
1139 unsigned int i,j;
1140 struct ldb_result *res = NULL;
1141
1142 DEBUG(10, ("AddRequest"));
1143 DEBUGADD(10, (" dn: %s\n", req->dn));
1144
1145 local_ctx = talloc_named(call, 0, "AddRequest local memory context");
1146 NT_STATUS_HAVE_NO_MEMORY(local_ctx);
1147
1148 dn = ldb_dn_new(local_ctx, samdb, req->dn);
1149 NT_STATUS_HAVE_NO_MEMORY(dn);
1150
1151 DEBUG(10, ("AddRequest: dn: [%s]\n", req->dn));
1152
1153 msg = talloc(local_ctx, struct ldb_message);
1154 NT_STATUS_HAVE_NO_MEMORY(msg);
1155
1156 msg->dn = dn;
1157 msg->num_elements = 0;
1158 msg->elements = NULL;
1159
1160 if (req->num_attributes > 0) {
1161 msg->num_elements = req->num_attributes;
1162 msg->elements = talloc_array(msg, struct ldb_message_element, msg->num_elements);
1163 NT_STATUS_HAVE_NO_MEMORY(msg->elements);
1164
1165 for (i=0; i < msg->num_elements; i++) {
1166 msg->elements[i].name = discard_const_p(char, req->attributes[i].name);
1167 msg->elements[i].flags = 0;
1168 msg->elements[i].num_values = 0;
1169 msg->elements[i].values = NULL;
1170
1171 if (req->attributes[i].num_values > 0) {
1172 msg->elements[i].num_values = req->attributes[i].num_values;
1173 msg->elements[i].values = talloc_array(msg->elements, struct ldb_val,
1174 msg->elements[i].num_values);
1175 NT_STATUS_HAVE_NO_MEMORY(msg->elements[i].values);
1176
1177 for (j=0; j < msg->elements[i].num_values; j++) {
1178 msg->elements[i].values[j].length = req->attributes[i].values[j].length;
1179 msg->elements[i].values[j].data = req->attributes[i].values[j].data;
1180 }
1181 }
1182 }
1183 }
1184
1185 add_reply = ldapsrv_init_reply(call, LDAP_TAG_AddResponse);
1186 NT_STATUS_HAVE_NO_MEMORY(add_reply);
1187
1188 if (result == LDAP_SUCCESS) {
1189 res = talloc_zero(local_ctx, struct ldb_result);
1190 NT_STATUS_HAVE_NO_MEMORY(res);
1191 ldb_ret = ldapsrv_add_with_controls(call, msg, call->request->controls, res);
1192 result = map_ldb_error(local_ctx, ldb_ret, ldb_errstring(samdb),
1193 &errstr);
1194 }
1195
1196 add_result = &add_reply->msg->r.AddResponse;
1197 add_result->dn = NULL;
1198 if ((res != NULL) && (res->refs != NULL)) {
1199 add_result->resultcode = map_ldb_error(local_ctx,
1200 LDB_ERR_REFERRAL, NULL,
1201 &errstr);
1202 add_result->errormessage = (errstr?talloc_strdup(add_reply,errstr):NULL);
1203 add_result->referral = talloc_strdup(call, *res->refs);
1204 } else {
1205 add_result->resultcode = result;
1206 add_result->errormessage = (errstr?talloc_strdup(add_reply,errstr):NULL);
1207 add_result->referral = NULL;
1208 }
1209 talloc_free(local_ctx);
1210
1211 return ldapsrv_queue_reply(call, add_reply);
1212
1213 }
1214
1215 static NTSTATUS ldapsrv_DelRequest(struct ldapsrv_call *call)
1216 {
1217 struct ldap_DelRequest *req = &call->request->r.DelRequest;
1218 struct ldap_Result *del_result;
1219 struct ldapsrv_reply *del_reply;
1220 TALLOC_CTX *local_ctx;
1221 struct ldb_context *samdb = call->conn->ldb;
1222 struct ldb_dn *dn;
1223 const char *errstr = NULL;
1224 int result = LDAP_SUCCESS;
1225 int ldb_ret;
1226 struct ldb_result *res = NULL;
1227
1228 DEBUG(10, ("DelRequest"));
1229 DEBUGADD(10, (" dn: %s\n", req->dn));
1230
1231 local_ctx = talloc_named(call, 0, "DelRequest local memory context");
1232 NT_STATUS_HAVE_NO_MEMORY(local_ctx);
1233
1234 dn = ldb_dn_new(local_ctx, samdb, req->dn);
1235 NT_STATUS_HAVE_NO_MEMORY(dn);
1236
1237 DEBUG(10, ("DelRequest: dn: [%s]\n", req->dn));
1238
1239 del_reply = ldapsrv_init_reply(call, LDAP_TAG_DelResponse);
1240 NT_STATUS_HAVE_NO_MEMORY(del_reply);
1241
1242 if (result == LDAP_SUCCESS) {
1243 res = talloc_zero(local_ctx, struct ldb_result);
1244 NT_STATUS_HAVE_NO_MEMORY(res);
1245 ldb_ret = ldapsrv_del_with_controls(call, dn, call->request->controls, res);
1246 result = map_ldb_error(local_ctx, ldb_ret, ldb_errstring(samdb),
1247 &errstr);
1248 }
1249
1250 del_result = &del_reply->msg->r.DelResponse;
1251 del_result->dn = NULL;
1252 if ((res != NULL) && (res->refs != NULL)) {
1253 del_result->resultcode = map_ldb_error(local_ctx,
1254 LDB_ERR_REFERRAL, NULL,
1255 &errstr);
1256 del_result->errormessage = (errstr?talloc_strdup(del_reply,errstr):NULL);
1257 del_result->referral = talloc_strdup(call, *res->refs);
1258 } else {
1259 del_result->resultcode = result;
1260 del_result->errormessage = (errstr?talloc_strdup(del_reply,errstr):NULL);
1261 del_result->referral = NULL;
1262 }
1263
1264 talloc_free(local_ctx);
1265
1266 return ldapsrv_queue_reply(call, del_reply);
1267 }
1268
1269 static NTSTATUS ldapsrv_ModifyDNRequest(struct ldapsrv_call *call)
1270 {
1271 struct ldap_ModifyDNRequest *req = &call->request->r.ModifyDNRequest;
1272 struct ldap_Result *modifydn;
1273 struct ldapsrv_reply *modifydn_r;
1274 TALLOC_CTX *local_ctx;
1275 struct ldb_context *samdb = call->conn->ldb;
1276 struct ldb_dn *olddn, *newdn=NULL, *newrdn;
1277 struct ldb_dn *parentdn = NULL;
1278 const char *errstr = NULL;
1279 int result = LDAP_SUCCESS;
1280 int ldb_ret;
1281 struct ldb_result *res = NULL;
1282
1283 DEBUG(10, ("ModifyDNRequest"));
1284 DEBUGADD(10, (" dn: %s", req->dn));
1285 DEBUGADD(10, (" newrdn: %s\n", req->newrdn));
1286
1287 local_ctx = talloc_named(call, 0, "ModifyDNRequest local memory context");
1288 NT_STATUS_HAVE_NO_MEMORY(local_ctx);
1289
1290 olddn = ldb_dn_new(local_ctx, samdb, req->dn);
1291 NT_STATUS_HAVE_NO_MEMORY(olddn);
1292
1293 newrdn = ldb_dn_new(local_ctx, samdb, req->newrdn);
1294 NT_STATUS_HAVE_NO_MEMORY(newrdn);
1295
1296 DEBUG(10, ("ModifyDNRequest: olddn: [%s]\n", req->dn));
1297 DEBUG(10, ("ModifyDNRequest: newrdn: [%s]\n", req->newrdn));
1298
1299 if (ldb_dn_get_comp_num(newrdn) == 0) {
1300 result = LDAP_PROTOCOL_ERROR;
1301 map_ldb_error(local_ctx, LDB_ERR_PROTOCOL_ERROR, NULL,
1302 &errstr);
1303 goto reply;
1304 }
1305
1306 if (ldb_dn_get_comp_num(newrdn) > 1) {
1307 result = LDAP_NAMING_VIOLATION;
1308 map_ldb_error(local_ctx, LDB_ERR_NAMING_VIOLATION, NULL,
1309 &errstr);
1310 goto reply;
1311 }
1312
1313 /* we can't handle the rename if we should not remove the old dn */
1314 if (!req->deleteolddn) {
1315 result = LDAP_UNWILLING_TO_PERFORM;
1316 map_ldb_error(local_ctx, LDB_ERR_UNWILLING_TO_PERFORM, NULL,
1317 &errstr);
1318 errstr = talloc_asprintf(local_ctx,
1319 "%s. Old RDN must be deleted", errstr);
1320 goto reply;
1321 }
1322
1323 if (req->newsuperior) {
1324 DEBUG(10, ("ModifyDNRequest: newsuperior: [%s]\n", req->newsuperior));
1325 parentdn = ldb_dn_new(local_ctx, samdb, req->newsuperior);
1326 }
1327
1328 if (!parentdn) {
1329 parentdn = ldb_dn_get_parent(local_ctx, olddn);
1330 }
1331 if (!parentdn) {
1332 result = LDAP_NO_SUCH_OBJECT;
1333 map_ldb_error(local_ctx, LDB_ERR_NO_SUCH_OBJECT, NULL, &errstr);
1334 goto reply;
1335 }
1336
1337 if ( ! ldb_dn_add_child(parentdn, newrdn)) {
1338 result = LDAP_OTHER;
1339 map_ldb_error(local_ctx, LDB_ERR_OTHER, NULL, &errstr);
1340 goto reply;
1341 }
1342 newdn = parentdn;
1343
1344 reply:
1345 modifydn_r = ldapsrv_init_reply(call, LDAP_TAG_ModifyDNResponse);
1346 NT_STATUS_HAVE_NO_MEMORY(modifydn_r);
1347
1348 if (result == LDAP_SUCCESS) {
1349 res = talloc_zero(local_ctx, struct ldb_result);
1350 NT_STATUS_HAVE_NO_MEMORY(res);
1351 ldb_ret = ldapsrv_rename_with_controls(call, olddn, newdn, call->request->controls, res);
1352 result = map_ldb_error(local_ctx, ldb_ret, ldb_errstring(samdb),
1353 &errstr);
1354 }
1355
1356 modifydn = &modifydn_r->msg->r.ModifyDNResponse;
1357 modifydn->dn = NULL;
1358 if ((res != NULL) && (res->refs != NULL)) {
1359 modifydn->resultcode = map_ldb_error(local_ctx,
1360 LDB_ERR_REFERRAL, NULL,
1361 &errstr);;
1362 modifydn->errormessage = (errstr?talloc_strdup(modifydn_r,errstr):NULL);
1363 modifydn->referral = talloc_strdup(call, *res->refs);
1364 } else {
1365 modifydn->resultcode = result;
1366 modifydn->errormessage = (errstr?talloc_strdup(modifydn_r,errstr):NULL);
1367 modifydn->referral = NULL;
1368 }
1369
1370 talloc_free(local_ctx);
1371
1372 return ldapsrv_queue_reply(call, modifydn_r);
1373 }
1374
1375 static NTSTATUS ldapsrv_CompareRequest(struct ldapsrv_call *call)
1376 {
1377 struct ldap_CompareRequest *req = &call->request->r.CompareRequest;
1378 struct ldap_Result *compare;
1379 struct ldapsrv_reply *compare_r;
1380 TALLOC_CTX *local_ctx;
1381 struct ldb_context *samdb = call->conn->ldb;
1382 struct ldb_result *res = NULL;
1383 struct ldb_dn *dn;
1384 const char *attrs[1];
1385 const char *errstr = NULL;
1386 const char *filter = NULL;
1387 int result = LDAP_SUCCESS;
1388 int ldb_ret;
1389
1390 DEBUG(10, ("CompareRequest"));
1391 DEBUGADD(10, (" dn: %s\n", req->dn));
1392
1393 local_ctx = talloc_named(call, 0, "CompareRequest local_memory_context");
1394 NT_STATUS_HAVE_NO_MEMORY(local_ctx);
1395
1396 dn = ldb_dn_new(local_ctx, samdb, req->dn);
1397 NT_STATUS_HAVE_NO_MEMORY(dn);
1398
1399 DEBUG(10, ("CompareRequest: dn: [%s]\n", req->dn));
1400 filter = talloc_asprintf(local_ctx, "(%s=%*s)", req->attribute,
1401 (int)req->value.length, req->value.data);
1402 NT_STATUS_HAVE_NO_MEMORY(filter);
1403
1404 DEBUGADD(10, ("CompareRequest: attribute: [%s]\n", filter));
1405
1406 attrs[0] = NULL;
1407
1408 compare_r = ldapsrv_init_reply(call, LDAP_TAG_CompareResponse);
1409 NT_STATUS_HAVE_NO_MEMORY(compare_r);
1410
1411 if (result == LDAP_SUCCESS) {
1412 ldb_ret = ldb_search(samdb, local_ctx, &res,
1413 dn, LDB_SCOPE_BASE, attrs, "%s", filter);
1414 if (ldb_ret != LDB_SUCCESS) {
1415 result = map_ldb_error(local_ctx, ldb_ret,
1416 ldb_errstring(samdb), &errstr);
1417 DEBUG(10,("CompareRequest: error: %s\n", errstr));
1418 } else if (res->count == 0) {
1419 DEBUG(10,("CompareRequest: doesn't matched\n"));
1420 result = LDAP_COMPARE_FALSE;
1421 errstr = NULL;
1422 } else if (res->count == 1) {
1423 DEBUG(10,("CompareRequest: matched\n"));
1424 result = LDAP_COMPARE_TRUE;
1425 errstr = NULL;
1426 } else if (res->count > 1) {
1427 result = LDAP_OTHER;
1428 map_ldb_error(local_ctx, LDB_ERR_OTHER, NULL, &errstr);
1429 errstr = talloc_asprintf(local_ctx,
1430 "%s. Too many objects match!", errstr);
1431 DEBUG(10,("CompareRequest: %d results: %s\n", res->count, errstr));
1432 }
1433 }
1434
1435 compare = &compare_r->msg->r.CompareResponse;
1436 compare->dn = NULL;
1437 compare->resultcode = result;
1438 compare->errormessage = (errstr?talloc_strdup(compare_r,errstr):NULL);
1439 compare->referral = NULL;
1440
1441 talloc_free(local_ctx);
1442
1443 return ldapsrv_queue_reply(call, compare_r);
1444 }
1445
1446 static NTSTATUS ldapsrv_AbandonRequest(struct ldapsrv_call *call)
1447 {
1448 struct ldap_AbandonRequest *req = &call->request->r.AbandonRequest;
1449 struct ldapsrv_call *c = NULL;
1450 struct ldapsrv_call *n = NULL;
1451
1452 DEBUG(10, ("AbandonRequest\n"));
1453
1454 for (c = call->conn->pending_calls; c != NULL; c = n) {
1455 n = c->next;
1456
1457 if (c->request->messageid != req->messageid) {
1458 continue;
1459 }
1460
1461 DLIST_REMOVE(call->conn->pending_calls, c);
1462 TALLOC_FREE(c);
1463 }
1464
1465 return NT_STATUS_OK;
1466 }
1467
1468 static NTSTATUS ldapsrv_expired(struct ldapsrv_call *call)
1469 {
1470 struct ldapsrv_reply *reply = NULL;
1471 struct ldap_ExtendedResponse *r = NULL;
1472
1473 DBG_DEBUG("Sending connection expired message\n");
1474
1475 reply = ldapsrv_init_reply(call, LDAP_TAG_ExtendedResponse);
1476 if (reply == NULL) {
1477 return NT_STATUS_NO_MEMORY;
1478 }
1479
1480 /*
1481 * According to RFC4511 section 4.4.1 this has a msgid of 0
1482 */
1483 reply->msg->messageid = 0;
1484
1485 r = &reply->msg->r.ExtendedResponse;
1486 r->response.resultcode = LDB_ERR_UNAVAILABLE;
1487 r->response.errormessage = "The server has timed out this connection";
1488 r->oid = "1.3.6.1.4.1.1466.20036"; /* see rfc4511 section 4.4.1 */
1489
1490 ldapsrv_queue_reply(call, reply);
1491 return NT_STATUS_OK;
1492 }
1493
1494 NTSTATUS ldapsrv_do_call(struct ldapsrv_call *call)
1495 {
1496 unsigned int i;
1497 struct ldap_message *msg = call->request;
1498 struct ldapsrv_connection *conn = call->conn;
1499 NTSTATUS status;
1500 bool expired;
1501
1502 expired = timeval_expired(&conn->limits.expire_time);
1503 if (expired) {
1504 status = ldapsrv_expired(call);
1505 if (!NT_STATUS_IS_OK(status)) {
1506 return status;
1507 }
1508 return NT_STATUS_NETWORK_SESSION_EXPIRED;
1509 }
1510
1511 /* Check for undecoded critical extensions */
1512 for (i=0; msg->controls && msg->controls[i]; i++) {
1513 if (!msg->controls_decoded[i] &&
1514 msg->controls[i]->critical) {
1515 DEBUG(3, ("ldapsrv_do_call: Critical extension %s is not known to this server\n",
1516 msg->controls[i]->oid));
1517 return ldapsrv_unwilling(call, LDAP_UNAVAILABLE_CRITICAL_EXTENSION);
1518 }
1519 }
1520
1521 if (call->conn->authz_logged == false) {
1522 bool log = true;
1523
1524 /*
1525 * We do not want to log anonymous access if the query
1526 * is just for the rootDSE, or it is a startTLS or a
1527 * Bind.
1528 *
1529 * A rootDSE search could also be done over
1530 * CLDAP anonymously for example, so these don't
1531 * really count.
1532 * Essentially we want to know about
1533 * access beyond that normally done prior to a
1534 * bind.
1535 */
1536
1537 switch(call->request->type) {
1538 case LDAP_TAG_BindRequest:
1539 case LDAP_TAG_UnbindRequest:
1540 case LDAP_TAG_AbandonRequest:
1541 log = false;
1542 break;
1543 case LDAP_TAG_ExtendedResponse: {
1544 struct ldap_ExtendedRequest *req = &call->request->r.ExtendedRequest;
1545 if (strcmp(req->oid, LDB_EXTENDED_START_TLS_OID) == 0) {
1546 log = false;
1547 }
1548 break;
1549 }
1550 case LDAP_TAG_SearchRequest: {
1551 struct ldap_SearchRequest *req = &call->request->r.SearchRequest;
1552 if (req->scope == LDAP_SEARCH_SCOPE_BASE) {
1553 if (req->basedn[0] == '\0') {
1554 log = false;
1555 }
1556 }
1557 break;
1558 }
1559 default:
1560 break;
1561 }
1562
1563 if (log) {
1564 const char *transport_protection = AUTHZ_TRANSPORT_PROTECTION_NONE;
1565 if (call->conn->sockets.active == call->conn->sockets.tls) {
1566 transport_protection = AUTHZ_TRANSPORT_PROTECTION_TLS;
1567 }
1568
1569 log_successful_authz_event(call->conn->connection->msg_ctx,
1570 call->conn->connection->lp_ctx,
1571 call->conn->connection->remote_address,
1572 call->conn->connection->local_address,
1573 "LDAP",
1574 "no bind",
1575 transport_protection,
1576 call->conn->session_info);
1577
1578 call->conn->authz_logged = true;
1579 }
1580 }
1581
1582 switch(call->request->type) {
1583 case LDAP_TAG_BindRequest:
1584 return ldapsrv_BindRequest(call);
1585 case LDAP_TAG_UnbindRequest:
1586 return ldapsrv_UnbindRequest(call);
1587 case LDAP_TAG_SearchRequest:
1588 return ldapsrv_SearchRequest(call);
1589 case LDAP_TAG_ModifyRequest:
1590 status = ldapsrv_ModifyRequest(call);
1591 break;
1592 case LDAP_TAG_AddRequest:
1593 status = ldapsrv_AddRequest(call);
1594 break;
1595 case LDAP_TAG_DelRequest:
1596 status = ldapsrv_DelRequest(call);
1597 break;
1598 case LDAP_TAG_ModifyDNRequest:
1599 status = ldapsrv_ModifyDNRequest(call);
1600 break;
1601 case LDAP_TAG_CompareRequest:
1602 return ldapsrv_CompareRequest(call);
1603 case LDAP_TAG_AbandonRequest:
1604 return ldapsrv_AbandonRequest(call);
1605 case LDAP_TAG_ExtendedRequest:
1606 status = ldapsrv_ExtendedRequest(call);
1607 break;
1608 default:
1609 return ldapsrv_unwilling(call, LDAP_PROTOCOL_ERROR);
1610 }
1611
1612 if (NT_STATUS_IS_OK(status)) {
1613 ldapsrv_notification_retry_setup(call->conn->service, true);
1614 }
1615
1616 return status;
1617 }
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