source: trunk/server/source4/ldap_server/ldap_backend.c

Last change on this file was 745, checked in by Silvan Scherrer, 13 years ago

Samba Server: updated trunk to 3.6.0
File size: 33.0 KB
Line 
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 "param/param.h"
27#include "smbd/service_stream.h"
28#include "dsdb/samdb/samdb.h"
29#include <ldb_errors.h>
30#include <ldb_module.h>
31#include "ldb_wrap.h"
32
33static int map_ldb_error(TALLOC_CTX *mem_ctx, int ldb_err,
34 const char *add_err_string, const char **errstring)
35{
36 WERROR err;
37
38 /* Certain LDB modules need to return very special WERROR codes. Proof
39 * for them here and if they exist skip the rest of the mapping. */
40 if (add_err_string != NULL) {
41 char *endptr;
42 strtol(add_err_string, &endptr, 16);
43 if (endptr != add_err_string) {
44 *errstring = add_err_string;
45 return ldb_err;
46 }
47 }
48
49 /* Otherwise we calculate here a generic, but appropriate WERROR. */
50
51 switch (ldb_err) {
52 case LDB_SUCCESS:
53 err = WERR_OK;
54 break;
55 case LDB_ERR_OPERATIONS_ERROR:
56 err = WERR_DS_OPERATIONS_ERROR;
57 break;
58 case LDB_ERR_PROTOCOL_ERROR:
59 err = WERR_DS_PROTOCOL_ERROR;
60 break;
61 case LDB_ERR_TIME_LIMIT_EXCEEDED:
62 err = WERR_DS_TIMELIMIT_EXCEEDED;
63 break;
64 case LDB_ERR_SIZE_LIMIT_EXCEEDED:
65 err = WERR_DS_SIZELIMIT_EXCEEDED;
66 break;
67 case LDB_ERR_COMPARE_FALSE:
68 err = WERR_DS_COMPARE_FALSE;
69 break;
70 case LDB_ERR_COMPARE_TRUE:
71 err = WERR_DS_COMPARE_TRUE;
72 break;
73 case LDB_ERR_AUTH_METHOD_NOT_SUPPORTED:
74 err = WERR_DS_AUTH_METHOD_NOT_SUPPORTED;
75 break;
76 case LDB_ERR_STRONG_AUTH_REQUIRED:
77 err = WERR_DS_STRONG_AUTH_REQUIRED;
78 break;
79 case LDB_ERR_REFERRAL:
80 err = WERR_DS_REFERRAL;
81 break;
82 case LDB_ERR_ADMIN_LIMIT_EXCEEDED:
83 err = WERR_DS_ADMIN_LIMIT_EXCEEDED;
84 break;
85 case LDB_ERR_UNSUPPORTED_CRITICAL_EXTENSION:
86 err = WERR_DS_UNAVAILABLE_CRIT_EXTENSION;
87 break;
88 case LDB_ERR_CONFIDENTIALITY_REQUIRED:
89 err = WERR_DS_CONFIDENTIALITY_REQUIRED;
90 break;
91 case LDB_ERR_SASL_BIND_IN_PROGRESS:
92 err = WERR_DS_BUSY;
93 break;
94 case LDB_ERR_NO_SUCH_ATTRIBUTE:
95 err = WERR_DS_NO_ATTRIBUTE_OR_VALUE;
96 break;
97 case LDB_ERR_UNDEFINED_ATTRIBUTE_TYPE:
98 err = WERR_DS_ATTRIBUTE_TYPE_UNDEFINED;
99 break;
100 case LDB_ERR_INAPPROPRIATE_MATCHING:
101 err = WERR_DS_INAPPROPRIATE_MATCHING;
102 break;
103 case LDB_ERR_CONSTRAINT_VIOLATION:
104 err = WERR_DS_CONSTRAINT_VIOLATION;
105 break;
106 case LDB_ERR_ATTRIBUTE_OR_VALUE_EXISTS:
107 err = WERR_DS_ATTRIBUTE_OR_VALUE_EXISTS;
108 break;
109 case LDB_ERR_INVALID_ATTRIBUTE_SYNTAX:
110 err = WERR_DS_INVALID_ATTRIBUTE_SYNTAX;
111 break;
112 case LDB_ERR_NO_SUCH_OBJECT:
113 err = WERR_DS_NO_SUCH_OBJECT;
114 break;
115 case LDB_ERR_ALIAS_PROBLEM:
116 err = WERR_DS_ALIAS_PROBLEM;
117 break;
118 case LDB_ERR_INVALID_DN_SYNTAX:
119 err = WERR_DS_INVALID_DN_SYNTAX;
120 break;
121 case LDB_ERR_ALIAS_DEREFERENCING_PROBLEM:
122 err = WERR_DS_ALIAS_DEREF_PROBLEM;
123 break;
124 case LDB_ERR_INAPPROPRIATE_AUTHENTICATION:
125 err = WERR_DS_INAPPROPRIATE_AUTH;
126 break;
127 case LDB_ERR_INVALID_CREDENTIALS:
128 err = WERR_ACCESS_DENIED;
129 break;
130 case LDB_ERR_INSUFFICIENT_ACCESS_RIGHTS:
131 err = WERR_DS_INSUFF_ACCESS_RIGHTS;
132 break;
133 case LDB_ERR_BUSY:
134 err = WERR_DS_BUSY;
135 break;
136 case LDB_ERR_UNAVAILABLE:
137 err = WERR_DS_UNAVAILABLE;
138 break;
139 case LDB_ERR_UNWILLING_TO_PERFORM:
140 err = WERR_DS_UNWILLING_TO_PERFORM;
141 break;
142 case LDB_ERR_LOOP_DETECT:
143 err = WERR_DS_LOOP_DETECT;
144 break;
145 case LDB_ERR_NAMING_VIOLATION:
146 err = WERR_DS_NAMING_VIOLATION;
147 break;
148 case LDB_ERR_OBJECT_CLASS_VIOLATION:
149 err = WERR_DS_OBJ_CLASS_VIOLATION;
150 break;
151 case LDB_ERR_NOT_ALLOWED_ON_NON_LEAF:
152 err = WERR_DS_CANT_ON_NON_LEAF;
153 break;
154 case LDB_ERR_NOT_ALLOWED_ON_RDN:
155 err = WERR_DS_CANT_ON_RDN;
156 break;
157 case LDB_ERR_ENTRY_ALREADY_EXISTS:
158 err = WERR_DS_OBJ_STRING_NAME_EXISTS;
159 break;
160 case LDB_ERR_OBJECT_CLASS_MODS_PROHIBITED:
161 err = WERR_DS_CANT_MOD_OBJ_CLASS;
162 break;
163 case LDB_ERR_AFFECTS_MULTIPLE_DSAS:
164 err = WERR_DS_AFFECTS_MULTIPLE_DSAS;
165 break;
166 default:
167 err = WERR_DS_GENERIC_ERROR;
168 break;
169 }
170
171 *errstring = talloc_asprintf(mem_ctx, "%08X: %s", W_ERROR_V(err),
172 ldb_strerror(ldb_err));
173 if (add_err_string != NULL) {
174 *errstring = talloc_asprintf(mem_ctx, "%s - %s", *errstring,
175 add_err_string);
176 }
177
178 /* result is 1:1 for now */
179 return ldb_err;
180}
181
182/*
183 connect to the sam database
184*/
185NTSTATUS ldapsrv_backend_Init(struct ldapsrv_connection *conn)
186{
187 conn->ldb = samdb_connect(conn,
188 conn->connection->event.ctx,
189 conn->lp_ctx,
190 conn->session_info,
191 conn->global_catalog ? LDB_FLG_RDONLY : 0);
192 if (conn->ldb == NULL) {
193 return NT_STATUS_INTERNAL_DB_CORRUPTION;
194 }
195
196 if (conn->server_credentials) {
197 char **sasl_mechs = NULL;
198 struct gensec_security_ops **backends = gensec_security_all();
199 struct gensec_security_ops **ops
200 = gensec_use_kerberos_mechs(conn, backends, conn->server_credentials);
201 unsigned int i, j = 0;
202 for (i = 0; ops && ops[i]; i++) {
203 if (!lpcfg_parm_bool(conn->lp_ctx, NULL, "gensec", ops[i]->name, ops[i]->enabled))
204 continue;
205
206 if (ops[i]->sasl_name && ops[i]->server_start) {
207 char *sasl_name = talloc_strdup(conn, ops[i]->sasl_name);
208
209 if (!sasl_name) {
210 return NT_STATUS_NO_MEMORY;
211 }
212 sasl_mechs = talloc_realloc(conn, sasl_mechs, char *, j + 2);
213 if (!sasl_mechs) {
214 return NT_STATUS_NO_MEMORY;
215 }
216 sasl_mechs[j] = sasl_name;
217 talloc_steal(sasl_mechs, sasl_name);
218 sasl_mechs[j+1] = NULL;
219 j++;
220 }
221 }
222 talloc_unlink(conn, ops);
223
224 /* ldb can have a different lifetime to conn, so we
225 need to ensure that sasl_mechs lives as long as the
226 ldb does */
227 talloc_steal(conn->ldb, sasl_mechs);
228
229 ldb_set_opaque(conn->ldb, "supportedSASLMechanisms", sasl_mechs);
230 }
231
232 return NT_STATUS_OK;
233}
234
235struct ldapsrv_reply *ldapsrv_init_reply(struct ldapsrv_call *call, uint8_t type)
236{
237 struct ldapsrv_reply *reply;
238
239 reply = talloc(call, struct ldapsrv_reply);
240 if (!reply) {
241 return NULL;
242 }
243 reply->msg = talloc(reply, struct ldap_message);
244 if (reply->msg == NULL) {
245 talloc_free(reply);
246 return NULL;
247 }
248
249 reply->msg->messageid = call->request->messageid;
250 reply->msg->type = type;
251 reply->msg->controls = NULL;
252
253 return reply;
254}
255
256void ldapsrv_queue_reply(struct ldapsrv_call *call, struct ldapsrv_reply *reply)
257{
258 DLIST_ADD_END(call->replies, reply, struct ldapsrv_reply *);
259}
260
261static NTSTATUS ldapsrv_unwilling(struct ldapsrv_call *call, int error)
262{
263 struct ldapsrv_reply *reply;
264 struct ldap_ExtendedResponse *r;
265
266 DEBUG(10,("Unwilling type[%d] id[%d]\n", call->request->type, call->request->messageid));
267
268 reply = ldapsrv_init_reply(call, LDAP_TAG_ExtendedResponse);
269 if (!reply) {
270 return NT_STATUS_NO_MEMORY;
271 }
272
273 r = &reply->msg->r.ExtendedResponse;
274 r->response.resultcode = error;
275 r->response.dn = NULL;
276 r->response.errormessage = NULL;
277 r->response.referral = NULL;
278 r->oid = NULL;
279 r->value = NULL;
280
281 ldapsrv_queue_reply(call, reply);
282 return NT_STATUS_OK;
283}
284
285static int ldapsrv_add_with_controls(struct ldapsrv_call *call,
286 const struct ldb_message *message,
287 struct ldb_control **controls,
288 void *context)
289{
290 struct ldb_context *ldb = call->conn->ldb;
291 struct ldb_request *req;
292 int ret;
293
294 ret = ldb_msg_sanity_check(ldb, message);
295 if (ret != LDB_SUCCESS) {
296 return ret;
297 }
298
299 ret = ldb_build_add_req(&req, ldb, ldb,
300 message,
301 controls,
302 context,
303 ldb_modify_default_callback,
304 NULL);
305
306 if (ret != LDB_SUCCESS) return ret;
307
308 ret = ldb_transaction_start(ldb);
309 if (ret != LDB_SUCCESS) {
310 return ret;
311 }
312
313 if (!call->conn->is_privileged) {
314 ldb_req_mark_untrusted(req);
315 }
316
317 LDB_REQ_SET_LOCATION(req);
318
319 ret = ldb_request(ldb, req);
320 if (ret == LDB_SUCCESS) {
321 ret = ldb_wait(req->handle, LDB_WAIT_ALL);
322 }
323
324 if (ret == LDB_SUCCESS) {
325 ret = ldb_transaction_commit(ldb);
326 }
327 else {
328 ldb_transaction_cancel(ldb);
329 }
330
331 talloc_free(req);
332 return ret;
333}
334
335/* create and execute a modify request */
336static int ldapsrv_mod_with_controls(struct ldapsrv_call *call,
337 const struct ldb_message *message,
338 struct ldb_control **controls,
339 void *context)
340{
341 struct ldb_context *ldb = call->conn->ldb;
342 struct ldb_request *req;
343 int ret;
344
345 ret = ldb_msg_sanity_check(ldb, message);
346 if (ret != LDB_SUCCESS) {
347 return ret;
348 }
349
350 ret = ldb_build_mod_req(&req, ldb, ldb,
351 message,
352 controls,
353 context,
354 ldb_modify_default_callback,
355 NULL);
356
357 if (ret != LDB_SUCCESS) {
358 return ret;
359 }
360
361 ret = ldb_transaction_start(ldb);
362 if (ret != LDB_SUCCESS) {
363 return ret;
364 }
365
366 if (!call->conn->is_privileged) {
367 ldb_req_mark_untrusted(req);
368 }
369
370 LDB_REQ_SET_LOCATION(req);
371
372 ret = ldb_request(ldb, req);
373 if (ret == LDB_SUCCESS) {
374 ret = ldb_wait(req->handle, LDB_WAIT_ALL);
375 }
376
377 if (ret == LDB_SUCCESS) {
378 ret = ldb_transaction_commit(ldb);
379 }
380 else {
381 ldb_transaction_cancel(ldb);
382 }
383
384 talloc_free(req);
385 return ret;
386}
387
388/* create and execute a delete request */
389static int ldapsrv_del_with_controls(struct ldapsrv_call *call,
390 struct ldb_dn *dn,
391 struct ldb_control **controls,
392 void *context)
393{
394 struct ldb_context *ldb = call->conn->ldb;
395 struct ldb_request *req;
396 int ret;
397
398 ret = ldb_build_del_req(&req, ldb, ldb,
399 dn,
400 controls,
401 context,
402 ldb_modify_default_callback,
403 NULL);
404
405 if (ret != LDB_SUCCESS) return ret;
406
407 ret = ldb_transaction_start(ldb);
408 if (ret != LDB_SUCCESS) {
409 return ret;
410 }
411
412 if (!call->conn->is_privileged) {
413 ldb_req_mark_untrusted(req);
414 }
415
416 LDB_REQ_SET_LOCATION(req);
417
418 ret = ldb_request(ldb, req);
419 if (ret == LDB_SUCCESS) {
420 ret = ldb_wait(req->handle, LDB_WAIT_ALL);
421 }
422
423 if (ret == LDB_SUCCESS) {
424 ret = ldb_transaction_commit(ldb);
425 }
426 else {
427 ldb_transaction_cancel(ldb);
428 }
429
430 talloc_free(req);
431 return ret;
432}
433
434static int ldapsrv_rename_with_controls(struct ldapsrv_call *call,
435 struct ldb_dn *olddn,
436 struct ldb_dn *newdn,
437 struct ldb_control **controls,
438 void *context)
439{
440 struct ldb_context *ldb = call->conn->ldb;
441 struct ldb_request *req;
442 int ret;
443
444 ret = ldb_build_rename_req(&req, ldb, ldb,
445 olddn,
446 newdn,
447 NULL,
448 context,
449 ldb_modify_default_callback,
450 NULL);
451
452 if (ret != LDB_SUCCESS) return ret;
453
454 ret = ldb_transaction_start(ldb);
455 if (ret != LDB_SUCCESS) {
456 return ret;
457 }
458
459 if (!call->conn->is_privileged) {
460 ldb_req_mark_untrusted(req);
461 }
462
463 LDB_REQ_SET_LOCATION(req);
464
465 ret = ldb_request(ldb, req);
466 if (ret == LDB_SUCCESS) {
467 ret = ldb_wait(req->handle, LDB_WAIT_ALL);
468 }
469
470 if (ret == LDB_SUCCESS) {
471 ret = ldb_transaction_commit(ldb);
472 }
473 else {
474 ldb_transaction_cancel(ldb);
475 }
476
477 talloc_free(req);
478 return ret;
479}
480
481static NTSTATUS ldapsrv_SearchRequest(struct ldapsrv_call *call)
482{
483 struct ldap_SearchRequest *req = &call->request->r.SearchRequest;
484 struct ldap_SearchResEntry *ent;
485 struct ldap_Result *done;
486 struct ldapsrv_reply *ent_r, *done_r;
487 TALLOC_CTX *local_ctx;
488 struct ldb_context *samdb = talloc_get_type(call->conn->ldb, struct ldb_context);
489 struct ldb_dn *basedn;
490 struct ldb_result *res = NULL;
491 struct ldb_request *lreq;
492 struct ldb_control *search_control;
493 struct ldb_search_options_control *search_options;
494 struct ldb_control *extended_dn_control;
495 struct ldb_extended_dn_control *extended_dn_decoded = NULL;
496 enum ldb_scope scope = LDB_SCOPE_DEFAULT;
497 const char **attrs = NULL;
498 const char *scope_str, *errstr = NULL;
499 int success_limit = 1;
500 int result = -1;
501 int ldb_ret = -1;
502 unsigned int i, j;
503 int extended_type = 1;
504
505 DEBUG(10, ("SearchRequest"));
506 DEBUGADD(10, (" basedn: %s", req->basedn));
507 DEBUGADD(10, (" filter: %s\n", ldb_filter_from_tree(call, req->tree)));
508
509 local_ctx = talloc_new(call);
510 NT_STATUS_HAVE_NO_MEMORY(local_ctx);
511
512 basedn = ldb_dn_new(local_ctx, samdb, req->basedn);
513 NT_STATUS_HAVE_NO_MEMORY(basedn);
514
515 DEBUG(10, ("SearchRequest: basedn: [%s]\n", req->basedn));
516 DEBUG(10, ("SearchRequest: filter: [%s]\n", ldb_filter_from_tree(call, req->tree)));
517
518 switch (req->scope) {
519 case LDAP_SEARCH_SCOPE_BASE:
520 scope_str = "BASE";
521 scope = LDB_SCOPE_BASE;
522 success_limit = 0;
523 break;
524 case LDAP_SEARCH_SCOPE_SINGLE:
525 scope_str = "ONE";
526 scope = LDB_SCOPE_ONELEVEL;
527 success_limit = 0;
528 break;
529 case LDAP_SEARCH_SCOPE_SUB:
530 scope_str = "SUB";
531 scope = LDB_SCOPE_SUBTREE;
532 success_limit = 0;
533 break;
534 default:
535 result = LDAP_PROTOCOL_ERROR;
536 map_ldb_error(local_ctx, LDB_ERR_PROTOCOL_ERROR, NULL,
537 &errstr);
538 errstr = talloc_asprintf(local_ctx,
539 "%s. Invalid scope", errstr);
540 goto reply;
541 }
542 DEBUG(10,("SearchRequest: scope: [%s]\n", scope_str));
543
544 if (req->num_attributes >= 1) {
545 attrs = talloc_array(local_ctx, const char *, req->num_attributes+1);
546 NT_STATUS_HAVE_NO_MEMORY(attrs);
547
548 for (i=0; i < req->num_attributes; i++) {
549 DEBUG(10,("SearchRequest: attrs: [%s]\n",req->attributes[i]));
550 attrs[i] = req->attributes[i];
551 }
552 attrs[i] = NULL;
553 }
554
555 DEBUG(5,("ldb_request %s dn=%s filter=%s\n",
556 scope_str, req->basedn, ldb_filter_from_tree(call, req->tree)));
557
558 res = talloc_zero(local_ctx, struct ldb_result);
559 NT_STATUS_HAVE_NO_MEMORY(res);
560
561 ldb_ret = ldb_build_search_req_ex(&lreq, samdb, local_ctx,
562 basedn, scope,
563 req->tree, attrs,
564 call->request->controls,
565 res, ldb_search_default_callback,
566 NULL);
567
568 if (ldb_ret != LDB_SUCCESS) {
569 goto reply;
570 }
571
572 if (call->conn->global_catalog) {
573 search_control = ldb_request_get_control(lreq, LDB_CONTROL_SEARCH_OPTIONS_OID);
574
575 search_options = NULL;
576 if (search_control) {
577 search_options = talloc_get_type(search_control->data, struct ldb_search_options_control);
578 search_options->search_options |= LDB_SEARCH_OPTION_PHANTOM_ROOT;
579 } else {
580 search_options = talloc(lreq, struct ldb_search_options_control);
581 NT_STATUS_HAVE_NO_MEMORY(search_options);
582 search_options->search_options = LDB_SEARCH_OPTION_PHANTOM_ROOT;
583 ldb_request_add_control(lreq, LDB_CONTROL_SEARCH_OPTIONS_OID, false, search_options);
584 }
585 }
586
587 extended_dn_control = ldb_request_get_control(lreq, LDB_CONTROL_EXTENDED_DN_OID);
588
589 if (extended_dn_control) {
590 if (extended_dn_control->data) {
591 extended_dn_decoded = talloc_get_type(extended_dn_control->data, struct ldb_extended_dn_control);
592 extended_type = extended_dn_decoded->type;
593 } else {
594 extended_type = 0;
595 }
596 }
597
598 ldb_set_timeout(samdb, lreq, req->timelimit);
599
600 if (!call->conn->is_privileged) {
601 ldb_req_mark_untrusted(lreq);
602 }
603
604 LDB_REQ_SET_LOCATION(lreq);
605
606 ldb_ret = ldb_request(samdb, lreq);
607
608 if (ldb_ret != LDB_SUCCESS) {
609 goto reply;
610 }
611
612 ldb_ret = ldb_wait(lreq->handle, LDB_WAIT_ALL);
613
614 if (ldb_ret == LDB_SUCCESS) {
615 for (i = 0; i < res->count; i++) {
616 ent_r = ldapsrv_init_reply(call, LDAP_TAG_SearchResultEntry);
617 NT_STATUS_HAVE_NO_MEMORY(ent_r);
618
619 /* Better to have the whole message kept here,
620 * than to find someone further up didn't put
621 * a value in the right spot in the talloc tree */
622 talloc_steal(ent_r, res->msgs[i]);
623
624 ent = &ent_r->msg->r.SearchResultEntry;
625 ent->dn = ldb_dn_get_extended_linearized(ent_r, res->msgs[i]->dn, extended_type);
626 ent->num_attributes = 0;
627 ent->attributes = NULL;
628 if (res->msgs[i]->num_elements == 0) {
629 goto queue_reply;
630 }
631 ent->num_attributes = res->msgs[i]->num_elements;
632 ent->attributes = talloc_array(ent_r, struct ldb_message_element, ent->num_attributes);
633 NT_STATUS_HAVE_NO_MEMORY(ent->attributes);
634 for (j=0; j < ent->num_attributes; j++) {
635 ent->attributes[j].name = res->msgs[i]->elements[j].name;
636 ent->attributes[j].num_values = 0;
637 ent->attributes[j].values = NULL;
638 if (req->attributesonly && (res->msgs[i]->elements[j].num_values == 0)) {
639 continue;
640 }
641 ent->attributes[j].num_values = res->msgs[i]->elements[j].num_values;
642 ent->attributes[j].values = res->msgs[i]->elements[j].values;
643 }
644queue_reply:
645 ldapsrv_queue_reply(call, ent_r);
646 }
647
648 /* Send back referrals if they do exist (search operations) */
649 if (res->refs != NULL) {
650 char **ref;
651 struct ldap_SearchResRef *ent_ref;
652
653 for (ref = res->refs; *ref != NULL; ++ref) {
654 ent_r = ldapsrv_init_reply(call, LDAP_TAG_SearchResultReference);
655 NT_STATUS_HAVE_NO_MEMORY(ent_r);
656
657 /* Better to have the whole referrals kept here,
658 * than to find someone further up didn't put
659 * a value in the right spot in the talloc tree
660 */
661 talloc_steal(ent_r, *ref);
662
663 ent_ref = &ent_r->msg->r.SearchResultReference;
664 ent_ref->referral = *ref;
665
666 ldapsrv_queue_reply(call, ent_r);
667 }
668 }
669 }
670
671reply:
672 done_r = ldapsrv_init_reply(call, LDAP_TAG_SearchResultDone);
673 NT_STATUS_HAVE_NO_MEMORY(done_r);
674
675 done = &done_r->msg->r.SearchResultDone;
676 done->dn = NULL;
677 done->referral = NULL;
678
679 if (result != -1) {
680 } else if (ldb_ret == LDB_SUCCESS) {
681 if (res->count >= success_limit) {
682 DEBUG(10,("SearchRequest: results: [%d]\n", res->count));
683 result = LDAP_SUCCESS;
684 errstr = NULL;
685 }
686 if (res->controls) {
687 done_r->msg->controls = res->controls;
688 talloc_steal(done_r, res->controls);
689 }
690 } else {
691 DEBUG(10,("SearchRequest: error\n"));
692 result = map_ldb_error(local_ctx, ldb_ret, ldb_errstring(samdb),
693 &errstr);
694 }
695
696 done->resultcode = result;
697 done->errormessage = (errstr?talloc_strdup(done_r, errstr):NULL);
698
699 talloc_free(local_ctx);
700
701 ldapsrv_queue_reply(call, done_r);
702 return NT_STATUS_OK;
703}
704
705static NTSTATUS ldapsrv_ModifyRequest(struct ldapsrv_call *call)
706{
707 struct ldap_ModifyRequest *req = &call->request->r.ModifyRequest;
708 struct ldap_Result *modify_result;
709 struct ldapsrv_reply *modify_reply;
710 TALLOC_CTX *local_ctx;
711 struct ldb_context *samdb = call->conn->ldb;
712 struct ldb_message *msg = NULL;
713 struct ldb_dn *dn;
714 const char *errstr = NULL;
715 int result = LDAP_SUCCESS;
716 int ldb_ret;
717 unsigned int i,j;
718 struct ldb_result *res = NULL;
719
720 DEBUG(10, ("ModifyRequest"));
721 DEBUGADD(10, (" dn: %s\n", req->dn));
722
723 local_ctx = talloc_named(call, 0, "ModifyRequest local memory context");
724 NT_STATUS_HAVE_NO_MEMORY(local_ctx);
725
726 dn = ldb_dn_new(local_ctx, samdb, req->dn);
727 NT_STATUS_HAVE_NO_MEMORY(dn);
728
729 DEBUG(10, ("ModifyRequest: dn: [%s]\n", req->dn));
730
731 msg = talloc(local_ctx, struct ldb_message);
732 NT_STATUS_HAVE_NO_MEMORY(msg);
733
734 msg->dn = dn;
735 msg->num_elements = 0;
736 msg->elements = NULL;
737
738 if (req->num_mods > 0) {
739 msg->num_elements = req->num_mods;
740 msg->elements = talloc_array(msg, struct ldb_message_element, req->num_mods);
741 NT_STATUS_HAVE_NO_MEMORY(msg->elements);
742
743 for (i=0; i < msg->num_elements; i++) {
744 msg->elements[i].name = discard_const_p(char, req->mods[i].attrib.name);
745 msg->elements[i].num_values = 0;
746 msg->elements[i].values = NULL;
747
748 switch (req->mods[i].type) {
749 default:
750 result = LDAP_PROTOCOL_ERROR;
751 map_ldb_error(local_ctx,
752 LDB_ERR_PROTOCOL_ERROR, NULL, &errstr);
753 errstr = talloc_asprintf(local_ctx,
754 "%s. Invalid LDAP_MODIFY_* type", errstr);
755 goto reply;
756 case LDAP_MODIFY_ADD:
757 msg->elements[i].flags = LDB_FLAG_MOD_ADD;
758 break;
759 case LDAP_MODIFY_DELETE:
760 msg->elements[i].flags = LDB_FLAG_MOD_DELETE;
761 break;
762 case LDAP_MODIFY_REPLACE:
763 msg->elements[i].flags = LDB_FLAG_MOD_REPLACE;
764 break;
765 }
766
767 msg->elements[i].num_values = req->mods[i].attrib.num_values;
768 if (msg->elements[i].num_values > 0) {
769 msg->elements[i].values = talloc_array(msg->elements, struct ldb_val,
770 msg->elements[i].num_values);
771 NT_STATUS_HAVE_NO_MEMORY(msg->elements[i].values);
772
773 for (j=0; j < msg->elements[i].num_values; j++) {
774 msg->elements[i].values[j].length = req->mods[i].attrib.values[j].length;
775 msg->elements[i].values[j].data = req->mods[i].attrib.values[j].data;
776 }
777 }
778 }
779 }
780
781reply:
782 modify_reply = ldapsrv_init_reply(call, LDAP_TAG_ModifyResponse);
783 NT_STATUS_HAVE_NO_MEMORY(modify_reply);
784
785 if (result == LDAP_SUCCESS) {
786 res = talloc_zero(local_ctx, struct ldb_result);
787 NT_STATUS_HAVE_NO_MEMORY(res);
788 ldb_ret = ldapsrv_mod_with_controls(call, msg, call->request->controls, res);
789 result = map_ldb_error(local_ctx, ldb_ret, ldb_errstring(samdb),
790 &errstr);
791 }
792
793 modify_result = &modify_reply->msg->r.ModifyResponse;
794 modify_result->dn = NULL;
795 if ((res != NULL) && (res->refs != NULL)) {
796 modify_result->resultcode = map_ldb_error(local_ctx,
797 LDB_ERR_REFERRAL,
798 NULL, &errstr);
799 modify_result->errormessage = (errstr?talloc_strdup(modify_reply, errstr):NULL);
800 modify_result->referral = talloc_strdup(call, *res->refs);
801 } else {
802 modify_result->resultcode = result;
803 modify_result->errormessage = (errstr?talloc_strdup(modify_reply, errstr):NULL);
804 modify_result->referral = NULL;
805 }
806 talloc_free(local_ctx);
807
808 ldapsrv_queue_reply(call, modify_reply);
809 return NT_STATUS_OK;
810
811}
812
813static NTSTATUS ldapsrv_AddRequest(struct ldapsrv_call *call)
814{
815 struct ldap_AddRequest *req = &call->request->r.AddRequest;
816 struct ldap_Result *add_result;
817 struct ldapsrv_reply *add_reply;
818 TALLOC_CTX *local_ctx;
819 struct ldb_context *samdb = call->conn->ldb;
820 struct ldb_message *msg = NULL;
821 struct ldb_dn *dn;
822 const char *errstr = NULL;
823 int result = LDAP_SUCCESS;
824 int ldb_ret;
825 unsigned int i,j;
826 struct ldb_result *res = NULL;
827
828 DEBUG(10, ("AddRequest"));
829 DEBUGADD(10, (" dn: %s\n", req->dn));
830
831 local_ctx = talloc_named(call, 0, "AddRequest local memory context");
832 NT_STATUS_HAVE_NO_MEMORY(local_ctx);
833
834 dn = ldb_dn_new(local_ctx, samdb, req->dn);
835 NT_STATUS_HAVE_NO_MEMORY(dn);
836
837 DEBUG(10, ("AddRequest: dn: [%s]\n", req->dn));
838
839 msg = talloc(local_ctx, struct ldb_message);
840 NT_STATUS_HAVE_NO_MEMORY(msg);
841
842 msg->dn = dn;
843 msg->num_elements = 0;
844 msg->elements = NULL;
845
846 if (req->num_attributes > 0) {
847 msg->num_elements = req->num_attributes;
848 msg->elements = talloc_array(msg, struct ldb_message_element, msg->num_elements);
849 NT_STATUS_HAVE_NO_MEMORY(msg->elements);
850
851 for (i=0; i < msg->num_elements; i++) {
852 msg->elements[i].name = discard_const_p(char, req->attributes[i].name);
853 msg->elements[i].flags = 0;
854 msg->elements[i].num_values = 0;
855 msg->elements[i].values = NULL;
856
857 if (req->attributes[i].num_values > 0) {
858 msg->elements[i].num_values = req->attributes[i].num_values;
859 msg->elements[i].values = talloc_array(msg->elements, struct ldb_val,
860 msg->elements[i].num_values);
861 NT_STATUS_HAVE_NO_MEMORY(msg->elements[i].values);
862
863 for (j=0; j < msg->elements[i].num_values; j++) {
864 msg->elements[i].values[j].length = req->attributes[i].values[j].length;
865 msg->elements[i].values[j].data = req->attributes[i].values[j].data;
866 }
867 }
868 }
869 }
870
871 add_reply = ldapsrv_init_reply(call, LDAP_TAG_AddResponse);
872 NT_STATUS_HAVE_NO_MEMORY(add_reply);
873
874 if (result == LDAP_SUCCESS) {
875 res = talloc_zero(local_ctx, struct ldb_result);
876 NT_STATUS_HAVE_NO_MEMORY(res);
877 ldb_ret = ldapsrv_add_with_controls(call, msg, call->request->controls, res);
878 result = map_ldb_error(local_ctx, ldb_ret, ldb_errstring(samdb),
879 &errstr);
880 }
881
882 add_result = &add_reply->msg->r.AddResponse;
883 add_result->dn = NULL;
884 if ((res != NULL) && (res->refs != NULL)) {
885 add_result->resultcode = map_ldb_error(local_ctx,
886 LDB_ERR_REFERRAL, NULL,
887 &errstr);
888 add_result->errormessage = (errstr?talloc_strdup(add_reply,errstr):NULL);
889 add_result->referral = talloc_strdup(call, *res->refs);
890 } else {
891 add_result->resultcode = result;
892 add_result->errormessage = (errstr?talloc_strdup(add_reply,errstr):NULL);
893 add_result->referral = NULL;
894 }
895 talloc_free(local_ctx);
896
897 ldapsrv_queue_reply(call, add_reply);
898 return NT_STATUS_OK;
899
900}
901
902static NTSTATUS ldapsrv_DelRequest(struct ldapsrv_call *call)
903{
904 struct ldap_DelRequest *req = &call->request->r.DelRequest;
905 struct ldap_Result *del_result;
906 struct ldapsrv_reply *del_reply;
907 TALLOC_CTX *local_ctx;
908 struct ldb_context *samdb = call->conn->ldb;
909 struct ldb_dn *dn;
910 const char *errstr = NULL;
911 int result = LDAP_SUCCESS;
912 int ldb_ret;
913 struct ldb_result *res = NULL;
914
915 DEBUG(10, ("DelRequest"));
916 DEBUGADD(10, (" dn: %s\n", req->dn));
917
918 local_ctx = talloc_named(call, 0, "DelRequest local memory context");
919 NT_STATUS_HAVE_NO_MEMORY(local_ctx);
920
921 dn = ldb_dn_new(local_ctx, samdb, req->dn);
922 NT_STATUS_HAVE_NO_MEMORY(dn);
923
924 DEBUG(10, ("DelRequest: dn: [%s]\n", req->dn));
925
926 del_reply = ldapsrv_init_reply(call, LDAP_TAG_DelResponse);
927 NT_STATUS_HAVE_NO_MEMORY(del_reply);
928
929 if (result == LDAP_SUCCESS) {
930 res = talloc_zero(local_ctx, struct ldb_result);
931 NT_STATUS_HAVE_NO_MEMORY(res);
932 ldb_ret = ldapsrv_del_with_controls(call, dn, call->request->controls, res);
933 result = map_ldb_error(local_ctx, ldb_ret, ldb_errstring(samdb),
934 &errstr);
935 }
936
937 del_result = &del_reply->msg->r.DelResponse;
938 del_result->dn = NULL;
939 if ((res != NULL) && (res->refs != NULL)) {
940 del_result->resultcode = map_ldb_error(local_ctx,
941 LDB_ERR_REFERRAL, NULL,
942 &errstr);
943 del_result->errormessage = (errstr?talloc_strdup(del_reply,errstr):NULL);
944 del_result->referral = talloc_strdup(call, *res->refs);
945 } else {
946 del_result->resultcode = result;
947 del_result->errormessage = (errstr?talloc_strdup(del_reply,errstr):NULL);
948 del_result->referral = NULL;
949 }
950
951 talloc_free(local_ctx);
952
953 ldapsrv_queue_reply(call, del_reply);
954 return NT_STATUS_OK;
955}
956
957static NTSTATUS ldapsrv_ModifyDNRequest(struct ldapsrv_call *call)
958{
959 struct ldap_ModifyDNRequest *req = &call->request->r.ModifyDNRequest;
960 struct ldap_Result *modifydn;
961 struct ldapsrv_reply *modifydn_r;
962 TALLOC_CTX *local_ctx;
963 struct ldb_context *samdb = call->conn->ldb;
964 struct ldb_dn *olddn, *newdn=NULL, *newrdn;
965 struct ldb_dn *parentdn = NULL;
966 const char *errstr = NULL;
967 int result = LDAP_SUCCESS;
968 int ldb_ret;
969 struct ldb_result *res = NULL;
970
971 DEBUG(10, ("ModifyDNRequest"));
972 DEBUGADD(10, (" dn: %s", req->dn));
973 DEBUGADD(10, (" newrdn: %s\n", req->newrdn));
974
975 local_ctx = talloc_named(call, 0, "ModifyDNRequest local memory context");
976 NT_STATUS_HAVE_NO_MEMORY(local_ctx);
977
978 olddn = ldb_dn_new(local_ctx, samdb, req->dn);
979 NT_STATUS_HAVE_NO_MEMORY(olddn);
980
981 newrdn = ldb_dn_new(local_ctx, samdb, req->newrdn);
982 NT_STATUS_HAVE_NO_MEMORY(newrdn);
983
984 DEBUG(10, ("ModifyDNRequest: olddn: [%s]\n", req->dn));
985 DEBUG(10, ("ModifyDNRequest: newrdn: [%s]\n", req->newrdn));
986
987 if (ldb_dn_get_comp_num(newrdn) == 0) {
988 result = LDAP_PROTOCOL_ERROR;
989 map_ldb_error(local_ctx, LDB_ERR_PROTOCOL_ERROR, NULL,
990 &errstr);
991 goto reply;
992 }
993
994 if (ldb_dn_get_comp_num(newrdn) > 1) {
995 result = LDAP_NAMING_VIOLATION;
996 map_ldb_error(local_ctx, LDB_ERR_NAMING_VIOLATION, NULL,
997 &errstr);
998 goto reply;
999 }
1000
1001 /* we can't handle the rename if we should not remove the old dn */
1002 if (!req->deleteolddn) {
1003 result = LDAP_UNWILLING_TO_PERFORM;
1004 map_ldb_error(local_ctx, LDB_ERR_UNWILLING_TO_PERFORM, NULL,
1005 &errstr);
1006 errstr = talloc_asprintf(local_ctx,
1007 "%s. Old RDN must be deleted", errstr);
1008 goto reply;
1009 }
1010
1011 if (req->newsuperior) {
1012 DEBUG(10, ("ModifyDNRequest: newsuperior: [%s]\n", req->newsuperior));
1013 parentdn = ldb_dn_new(local_ctx, samdb, req->newsuperior);
1014 }
1015
1016 if (!parentdn) {
1017 parentdn = ldb_dn_get_parent(local_ctx, olddn);
1018 }
1019 if (!parentdn) {
1020 result = LDAP_NO_SUCH_OBJECT;
1021 map_ldb_error(local_ctx, LDB_ERR_NO_SUCH_OBJECT, NULL, &errstr);
1022 goto reply;
1023 }
1024
1025 if ( ! ldb_dn_add_child(parentdn, newrdn)) {
1026 result = LDAP_OTHER;
1027 map_ldb_error(local_ctx, LDB_ERR_OTHER, NULL, &errstr);
1028 goto reply;
1029 }
1030 newdn = parentdn;
1031
1032reply:
1033 modifydn_r = ldapsrv_init_reply(call, LDAP_TAG_ModifyDNResponse);
1034 NT_STATUS_HAVE_NO_MEMORY(modifydn_r);
1035
1036 if (result == LDAP_SUCCESS) {
1037 res = talloc_zero(local_ctx, struct ldb_result);
1038 NT_STATUS_HAVE_NO_MEMORY(res);
1039 ldb_ret = ldapsrv_rename_with_controls(call, olddn, newdn, call->request->controls, res);
1040 result = map_ldb_error(local_ctx, ldb_ret, ldb_errstring(samdb),
1041 &errstr);
1042 }
1043
1044 modifydn = &modifydn_r->msg->r.ModifyDNResponse;
1045 modifydn->dn = NULL;
1046 if ((res != NULL) && (res->refs != NULL)) {
1047 modifydn->resultcode = map_ldb_error(local_ctx,
1048 LDB_ERR_REFERRAL, NULL,
1049 &errstr);;
1050 modifydn->errormessage = (errstr?talloc_strdup(modifydn_r,errstr):NULL);
1051 modifydn->referral = talloc_strdup(call, *res->refs);
1052 } else {
1053 modifydn->resultcode = result;
1054 modifydn->errormessage = (errstr?talloc_strdup(modifydn_r,errstr):NULL);
1055 modifydn->referral = NULL;
1056 }
1057
1058 talloc_free(local_ctx);
1059
1060 ldapsrv_queue_reply(call, modifydn_r);
1061 return NT_STATUS_OK;
1062}
1063
1064static NTSTATUS ldapsrv_CompareRequest(struct ldapsrv_call *call)
1065{
1066 struct ldap_CompareRequest *req = &call->request->r.CompareRequest;
1067 struct ldap_Result *compare;
1068 struct ldapsrv_reply *compare_r;
1069 TALLOC_CTX *local_ctx;
1070 struct ldb_context *samdb = call->conn->ldb;
1071 struct ldb_result *res = NULL;
1072 struct ldb_dn *dn;
1073 const char *attrs[1];
1074 const char *errstr = NULL;
1075 const char *filter = NULL;
1076 int result = LDAP_SUCCESS;
1077 int ldb_ret;
1078
1079 DEBUG(10, ("CompareRequest"));
1080 DEBUGADD(10, (" dn: %s\n", req->dn));
1081
1082 local_ctx = talloc_named(call, 0, "CompareRequest local_memory_context");
1083 NT_STATUS_HAVE_NO_MEMORY(local_ctx);
1084
1085 dn = ldb_dn_new(local_ctx, samdb, req->dn);
1086 NT_STATUS_HAVE_NO_MEMORY(dn);
1087
1088 DEBUG(10, ("CompareRequest: dn: [%s]\n", req->dn));
1089 filter = talloc_asprintf(local_ctx, "(%s=%*s)", req->attribute,
1090 (int)req->value.length, req->value.data);
1091 NT_STATUS_HAVE_NO_MEMORY(filter);
1092
1093 DEBUGADD(10, ("CompareRequest: attribute: [%s]\n", filter));
1094
1095 attrs[0] = NULL;
1096
1097 compare_r = ldapsrv_init_reply(call, LDAP_TAG_CompareResponse);
1098 NT_STATUS_HAVE_NO_MEMORY(compare_r);
1099
1100 if (result == LDAP_SUCCESS) {
1101 ldb_ret = ldb_search(samdb, local_ctx, &res,
1102 dn, LDB_SCOPE_BASE, attrs, "%s", filter);
1103 if (ldb_ret != LDB_SUCCESS) {
1104 result = map_ldb_error(local_ctx, ldb_ret,
1105 ldb_errstring(samdb), &errstr);
1106 DEBUG(10,("CompareRequest: error: %s\n", errstr));
1107 } else if (res->count == 0) {
1108 DEBUG(10,("CompareRequest: doesn't matched\n"));
1109 result = LDAP_COMPARE_FALSE;
1110 errstr = NULL;
1111 } else if (res->count == 1) {
1112 DEBUG(10,("CompareRequest: matched\n"));
1113 result = LDAP_COMPARE_TRUE;
1114 errstr = NULL;
1115 } else if (res->count > 1) {
1116 result = LDAP_OTHER;
1117 map_ldb_error(local_ctx, LDB_ERR_OTHER, NULL, &errstr);
1118 errstr = talloc_asprintf(local_ctx,
1119 "%s. Too many objects match!", errstr);
1120 DEBUG(10,("CompareRequest: %d results: %s\n", res->count, errstr));
1121 }
1122 }
1123
1124 compare = &compare_r->msg->r.CompareResponse;
1125 compare->dn = NULL;
1126 compare->resultcode = result;
1127 compare->errormessage = (errstr?talloc_strdup(compare_r,errstr):NULL);
1128 compare->referral = NULL;
1129
1130 talloc_free(local_ctx);
1131
1132 ldapsrv_queue_reply(call, compare_r);
1133 return NT_STATUS_OK;
1134}
1135
1136static NTSTATUS ldapsrv_AbandonRequest(struct ldapsrv_call *call)
1137{
1138/* struct ldap_AbandonRequest *req = &call->request.r.AbandonRequest;*/
1139 DEBUG(10, ("AbandonRequest\n"));
1140 return NT_STATUS_OK;
1141}
1142
1143NTSTATUS ldapsrv_do_call(struct ldapsrv_call *call)
1144{
1145 unsigned int i;
1146 struct ldap_message *msg = call->request;
1147 /* Check for undecoded critical extensions */
1148 for (i=0; msg->controls && msg->controls[i]; i++) {
1149 if (!msg->controls_decoded[i] &&
1150 msg->controls[i]->critical) {
1151 DEBUG(3, ("ldapsrv_do_call: Critical extension %s is not known to this server\n",
1152 msg->controls[i]->oid));
1153 return ldapsrv_unwilling(call, LDAP_UNAVAILABLE_CRITICAL_EXTENSION);
1154 }
1155 }
1156
1157 switch(call->request->type) {
1158 case LDAP_TAG_BindRequest:
1159 return ldapsrv_BindRequest(call);
1160 case LDAP_TAG_UnbindRequest:
1161 return ldapsrv_UnbindRequest(call);
1162 case LDAP_TAG_SearchRequest:
1163 return ldapsrv_SearchRequest(call);
1164 case LDAP_TAG_ModifyRequest:
1165 return ldapsrv_ModifyRequest(call);
1166 case LDAP_TAG_AddRequest:
1167 return ldapsrv_AddRequest(call);
1168 case LDAP_TAG_DelRequest:
1169 return ldapsrv_DelRequest(call);
1170 case LDAP_TAG_ModifyDNRequest:
1171 return ldapsrv_ModifyDNRequest(call);
1172 case LDAP_TAG_CompareRequest:
1173 return ldapsrv_CompareRequest(call);
1174 case LDAP_TAG_AbandonRequest:
1175 return ldapsrv_AbandonRequest(call);
1176 case LDAP_TAG_ExtendedRequest:
1177 return ldapsrv_ExtendedRequest(call);
1178 default:
1179 return ldapsrv_unwilling(call, LDAP_PROTOCOL_ERROR);
1180 }
1181}
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