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s3/docs: Remove superfluous bracket.
[Samba/gbeck.git] / source4 / ldap_server / ldap_backend.c
blobe45c180e317bb0bb8fbb76f583149ca3531aec17
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 "lib/ldb/include/ldb_errors.h"
30 #include "lib/ldb/include/ldb_module.h"
31 #include "ldb_wrap.h"
32
33 #define VALID_DN_SYNTAX(dn) do {\
34 if (!(dn)) {\
35 return NT_STATUS_NO_MEMORY;\
36 } else if ( ! ldb_dn_validate(dn)) {\
37 result = LDAP_INVALID_DN_SYNTAX;\
38 map_ldb_error(local_ctx, LDB_ERR_INVALID_DN_SYNTAX, NULL,\
39 &errstr);\
40 goto reply;\
41 }\
42 } while(0)
43
44 static int map_ldb_error(TALLOC_CTX *mem_ctx, int ldb_err,
45 const char *add_err_string, const char **errstring)
46 {
47 WERROR err;
48
49 /* Certain LDB modules need to return very special WERROR codes. Proof
50 * for them here and if they exist skip the rest of the mapping. */
51 if (add_err_string != NULL) {
52 char *endptr;
53 strtol(add_err_string, &endptr, 16);
54 if (endptr != add_err_string) {
55 *errstring = add_err_string;
56 return ldb_err;
57 }
58 }
59
60 /* Otherwise we calculate here a generic, but appropriate WERROR. */
61
62 switch (ldb_err) {
63 case LDB_SUCCESS:
64 err = WERR_OK;
65 break;
66 case LDB_ERR_OPERATIONS_ERROR:
67 err = WERR_DS_OPERATIONS_ERROR;
68 break;
69 case LDB_ERR_PROTOCOL_ERROR:
70 err = WERR_DS_PROTOCOL_ERROR;
71 break;
72 case LDB_ERR_TIME_LIMIT_EXCEEDED:
73 err = WERR_DS_TIMELIMIT_EXCEEDED;
74 break;
75 case LDB_ERR_SIZE_LIMIT_EXCEEDED:
76 err = WERR_DS_SIZELIMIT_EXCEEDED;
77 break;
78 case LDB_ERR_COMPARE_FALSE:
79 err = WERR_DS_COMPARE_FALSE;
80 break;
81 case LDB_ERR_COMPARE_TRUE:
82 err = WERR_DS_COMPARE_TRUE;
83 break;
84 case LDB_ERR_AUTH_METHOD_NOT_SUPPORTED:
85 err = WERR_DS_AUTH_METHOD_NOT_SUPPORTED;
86 break;
87 case LDB_ERR_STRONG_AUTH_REQUIRED:
88 err = WERR_DS_STRONG_AUTH_REQUIRED;
89 break;
90 case LDB_ERR_REFERRAL:
91 err = WERR_DS_REFERRAL;
92 break;
93 case LDB_ERR_ADMIN_LIMIT_EXCEEDED:
94 err = WERR_DS_ADMIN_LIMIT_EXCEEDED;
95 break;
96 case LDB_ERR_UNSUPPORTED_CRITICAL_EXTENSION:
97 err = WERR_DS_UNAVAILABLE_CRIT_EXTENSION;
98 break;
99 case LDB_ERR_CONFIDENTIALITY_REQUIRED:
100 err = WERR_DS_CONFIDENTIALITY_REQUIRED;
101 break;
102 case LDB_ERR_SASL_BIND_IN_PROGRESS:
103 err = WERR_DS_BUSY;
104 break;
105 case LDB_ERR_NO_SUCH_ATTRIBUTE:
106 err = WERR_DS_NO_ATTRIBUTE_OR_VALUE;
107 break;
108 case LDB_ERR_UNDEFINED_ATTRIBUTE_TYPE:
109 err = WERR_DS_ATTRIBUTE_TYPE_UNDEFINED;
110 break;
111 case LDB_ERR_INAPPROPRIATE_MATCHING:
112 err = WERR_DS_INAPPROPRIATE_MATCHING;
113 break;
114 case LDB_ERR_CONSTRAINT_VIOLATION:
115 err = WERR_DS_CONSTRAINT_VIOLATION;
116 break;
117 case LDB_ERR_ATTRIBUTE_OR_VALUE_EXISTS:
118 err = WERR_DS_ATTRIBUTE_OR_VALUE_EXISTS;
119 break;
120 case LDB_ERR_INVALID_ATTRIBUTE_SYNTAX:
121 err = WERR_DS_INVALID_ATTRIBUTE_SYNTAX;
122 break;
123 case LDB_ERR_NO_SUCH_OBJECT:
124 err = WERR_DS_NO_SUCH_OBJECT;
125 break;
126 case LDB_ERR_ALIAS_PROBLEM:
127 err = WERR_DS_ALIAS_PROBLEM;
128 break;
129 case LDB_ERR_INVALID_DN_SYNTAX:
130 err = WERR_DS_INVALID_DN_SYNTAX;
131 break;
132 case LDB_ERR_ALIAS_DEREFERENCING_PROBLEM:
133 err = WERR_DS_ALIAS_DEREF_PROBLEM;
134 break;
135 case LDB_ERR_INAPPROPRIATE_AUTHENTICATION:
136 err = WERR_DS_INAPPROPRIATE_AUTH;
137 break;
138 case LDB_ERR_INVALID_CREDENTIALS:
139 err = WERR_ACCESS_DENIED;
140 break;
141 case LDB_ERR_INSUFFICIENT_ACCESS_RIGHTS:
142 err = WERR_DS_INSUFF_ACCESS_RIGHTS;
143 break;
144 case LDB_ERR_BUSY:
145 err = WERR_DS_BUSY;
146 break;
147 case LDB_ERR_UNAVAILABLE:
148 err = WERR_DS_UNAVAILABLE;
149 break;
150 case LDB_ERR_UNWILLING_TO_PERFORM:
151 err = WERR_DS_UNWILLING_TO_PERFORM;
152 break;
153 case LDB_ERR_LOOP_DETECT:
154 err = WERR_DS_LOOP_DETECT;
155 break;
156 case LDB_ERR_NAMING_VIOLATION:
157 err = WERR_DS_NAMING_VIOLATION;
158 break;
159 case LDB_ERR_OBJECT_CLASS_VIOLATION:
160 err = WERR_DS_OBJ_CLASS_VIOLATION;
161 break;
162 case LDB_ERR_NOT_ALLOWED_ON_NON_LEAF:
163 err = WERR_DS_CANT_ON_NON_LEAF;
164 break;
165 case LDB_ERR_NOT_ALLOWED_ON_RDN:
166 err = WERR_DS_CANT_ON_RDN;
167 break;
168 case LDB_ERR_ENTRY_ALREADY_EXISTS:
169 err = WERR_DS_OBJ_STRING_NAME_EXISTS;
170 break;
171 case LDB_ERR_OBJECT_CLASS_MODS_PROHIBITED:
172 err = WERR_DS_CANT_MOD_OBJ_CLASS;
173 break;
174 case LDB_ERR_AFFECTS_MULTIPLE_DSAS:
175 err = WERR_DS_AFFECTS_MULTIPLE_DSAS;
176 break;
177 default:
178 err = WERR_DS_GENERIC_ERROR;
179 break;
180 }
181
182 *errstring = talloc_asprintf(mem_ctx, "%08X: %s", W_ERROR_V(err),
183 ldb_strerror(ldb_err));
184 if (add_err_string != NULL) {
185 *errstring = talloc_asprintf(mem_ctx, "%s - %s", *errstring,
186 add_err_string);
187 }
188
189 /* result is 1:1 for now */
190 return ldb_err;
191 }
192
193 /*
194 connect to the sam database
195 */
196 NTSTATUS ldapsrv_backend_Init(struct ldapsrv_connection *conn)
197 {
198 conn->ldb = samdb_connect(conn,
199 conn->connection->event.ctx,
200 conn->lp_ctx,
201 conn->session_info,
202 conn->global_catalog ? LDB_FLG_RDONLY : 0);
203 if (conn->ldb == NULL) {
204 return NT_STATUS_INTERNAL_DB_CORRUPTION;
205 }
206
207 if (conn->server_credentials) {
208 char **sasl_mechs = NULL;
209 struct gensec_security_ops **backends = gensec_security_all();
210 struct gensec_security_ops **ops
211 = gensec_use_kerberos_mechs(conn, backends, conn->server_credentials);
212 unsigned int i, j = 0;
213 for (i = 0; ops && ops[i]; i++) {
214 if (!lpcfg_parm_bool(conn->lp_ctx, NULL, "gensec", ops[i]->name, ops[i]->enabled))
215 continue;
216
217 if (ops[i]->sasl_name && ops[i]->server_start) {
218 char *sasl_name = talloc_strdup(conn, ops[i]->sasl_name);
219
220 if (!sasl_name) {
221 return NT_STATUS_NO_MEMORY;
222 }
223 sasl_mechs = talloc_realloc(conn, sasl_mechs, char *, j + 2);
224 if (!sasl_mechs) {
225 return NT_STATUS_NO_MEMORY;
226 }
227 sasl_mechs[j] = sasl_name;
228 talloc_steal(sasl_mechs, sasl_name);
229 sasl_mechs[j+1] = NULL;
230 j++;
231 }
232 }
233 talloc_unlink(conn, ops);
234
235 /* ldb can have a different lifetime to conn, so we
236 need to ensure that sasl_mechs lives as long as the
237 ldb does */
238 talloc_steal(conn->ldb, sasl_mechs);
239
240 ldb_set_opaque(conn->ldb, "supportedSASLMechanisms", sasl_mechs);
241 }
242
243 return NT_STATUS_OK;
244 }
245
246 struct ldapsrv_reply *ldapsrv_init_reply(struct ldapsrv_call *call, uint8_t type)
247 {
248 struct ldapsrv_reply *reply;
249
250 reply = talloc(call, struct ldapsrv_reply);
251 if (!reply) {
252 return NULL;
253 }
254 reply->msg = talloc(reply, struct ldap_message);
255 if (reply->msg == NULL) {
256 talloc_free(reply);
257 return NULL;
258 }
259
260 reply->msg->messageid = call->request->messageid;
261 reply->msg->type = type;
262 reply->msg->controls = NULL;
263
264 return reply;
265 }
266
267 void ldapsrv_queue_reply(struct ldapsrv_call *call, struct ldapsrv_reply *reply)
268 {
269 DLIST_ADD_END(call->replies, reply, struct ldapsrv_reply *);
270 }
271
272 static NTSTATUS ldapsrv_unwilling(struct ldapsrv_call *call, int error)
273 {
274 struct ldapsrv_reply *reply;
275 struct ldap_ExtendedResponse *r;
276
277 DEBUG(10,("Unwilling type[%d] id[%d]\n", call->request->type, call->request->messageid));
278
279 reply = ldapsrv_init_reply(call, LDAP_TAG_ExtendedResponse);
280 if (!reply) {
281 return NT_STATUS_NO_MEMORY;
282 }
283
284 r = &reply->msg->r.ExtendedResponse;
285 r->response.resultcode = error;
286 r->response.dn = NULL;
287 r->response.errormessage = NULL;
288 r->response.referral = NULL;
289 r->oid = NULL;
290 r->value = NULL;
291
292 ldapsrv_queue_reply(call, reply);
293 return NT_STATUS_OK;
294 }
295
296 static int ldb_add_with_controls(struct ldb_context *ldb,
297 const struct ldb_message *message,
298 struct ldb_control **controls,
299 void *context)
300 {
301 struct ldb_request *req;
302 int ret;
303
304 ret = ldb_msg_sanity_check(ldb, message);
305 if (ret != LDB_SUCCESS) {
306 return ret;
307 }
308
309 ret = ldb_build_add_req(&req, ldb, ldb,
310 message,
311 controls,
312 context,
313 ldb_modify_default_callback,
314 NULL);
315
316 if (ret != LDB_SUCCESS) return ret;
317
318 ret = ldb_transaction_start(ldb);
319 if (ret != LDB_SUCCESS) {
320 return ret;
321 }
322
323 ldb_req_mark_untrusted(req);
324
325 LDB_REQ_SET_LOCATION(req);
326
327 ret = ldb_request(ldb, req);
328 if (ret == LDB_SUCCESS) {
329 ret = ldb_wait(req->handle, LDB_WAIT_ALL);
330 }
331
332 if (ret == LDB_SUCCESS) {
333 ret = ldb_transaction_commit(ldb);
334 }
335 else {
336 ldb_transaction_cancel(ldb);
337 }
338
339 talloc_free(req);
340 return ret;
341 }
342
343 /* create and execute a modify request */
344 static int ldb_mod_req_with_controls(struct ldb_context *ldb,
345 const struct ldb_message *message,
346 struct ldb_control **controls,
347 void *context)
348 {
349 struct ldb_request *req;
350 int ret;
351
352 ret = ldb_msg_sanity_check(ldb, message);
353 if (ret != LDB_SUCCESS) {
354 return ret;
355 }
356
357 ret = ldb_build_mod_req(&req, ldb, ldb,
358 message,
359 controls,
360 context,
361 ldb_modify_default_callback,
362 NULL);
363
364 if (ret != LDB_SUCCESS) {
365 return ret;
366 }
367
368 ret = ldb_transaction_start(ldb);
369 if (ret != LDB_SUCCESS) {
370 return ret;
371 }
372
373 ldb_req_mark_untrusted(req);
374
375 LDB_REQ_SET_LOCATION(req);
376
377 ret = ldb_request(ldb, req);
378 if (ret == LDB_SUCCESS) {
379 ret = ldb_wait(req->handle, LDB_WAIT_ALL);
380 }
381
382 if (ret == LDB_SUCCESS) {
383 ret = ldb_transaction_commit(ldb);
384 }
385 else {
386 ldb_transaction_cancel(ldb);
387 }
388
389 talloc_free(req);
390 return ret;
391 }
392
393 /* create and execute a delete request */
394 static int ldb_del_req_with_controls(struct ldb_context *ldb,
395 struct ldb_dn *dn,
396 struct ldb_control **controls,
397 void *context)
398 {
399 struct ldb_request *req;
400 int ret;
401
402 ret = ldb_build_del_req(&req, ldb, ldb,
403 dn,
404 controls,
405 context,
406 ldb_modify_default_callback,
407 NULL);
408
409 if (ret != LDB_SUCCESS) return ret;
410
411 ret = ldb_transaction_start(ldb);
412 if (ret != LDB_SUCCESS) {
413 return ret;
414 }
415
416 ldb_req_mark_untrusted(req);
417
418 LDB_REQ_SET_LOCATION(req);
419
420 ret = ldb_request(ldb, req);
421 if (ret == LDB_SUCCESS) {
422 ret = ldb_wait(req->handle, LDB_WAIT_ALL);
423 }
424
425 if (ret == LDB_SUCCESS) {
426 ret = ldb_transaction_commit(ldb);
427 }
428 else {
429 ldb_transaction_cancel(ldb);
430 }
431
432 talloc_free(req);
433 return ret;
434 }
435
436 int ldb_rename_with_controls(struct ldb_context *ldb,
437 struct ldb_dn *olddn,
438 struct ldb_dn *newdn,
439 struct ldb_control **controls,
440 void *context)
441 {
442 struct ldb_request *req;
443 int ret;
444
445 ret = ldb_build_rename_req(&req, ldb, ldb,
446 olddn,
447 newdn,
448 NULL,
449 context,
450 ldb_modify_default_callback,
451 NULL);
452
453 if (ret != LDB_SUCCESS) return ret;
454
455 ret = ldb_transaction_start(ldb);
456 if (ret != LDB_SUCCESS) {
457 return ret;
458 }
459
460 ldb_req_mark_untrusted(req);
461
462 LDB_REQ_SET_LOCATION(req);
463
464 ret = ldb_request(ldb, req);
465 if (ret == LDB_SUCCESS) {
466 ret = ldb_wait(req->handle, LDB_WAIT_ALL);
467 }
468
469 if (ret == LDB_SUCCESS) {
470 ret = ldb_transaction_commit(ldb);
471 }
472 else {
473 ldb_transaction_cancel(ldb);
474 }
475
476 talloc_free(req);
477 return ret;
478 }
479
480 static NTSTATUS ldapsrv_SearchRequest(struct ldapsrv_call *call)
481 {
482 struct ldap_SearchRequest *req = &call->request->r.SearchRequest;
483 struct ldap_SearchResEntry *ent;
484 struct ldap_Result *done;
485 struct ldapsrv_reply *ent_r, *done_r;
486 TALLOC_CTX *local_ctx;
487 struct ldb_context *samdb = talloc_get_type(call->conn->ldb, struct ldb_context);
488 struct ldb_dn *basedn;
489 struct ldb_result *res = NULL;
490 struct ldb_request *lreq;
491 struct ldb_control *search_control;
492 struct ldb_search_options_control *search_options;
493 struct ldb_control *extended_dn_control;
494 struct ldb_extended_dn_control *extended_dn_decoded = NULL;
495 enum ldb_scope scope = LDB_SCOPE_DEFAULT;
496 const char **attrs = NULL;
497 const char *scope_str, *errstr = NULL;
498 int success_limit = 1;
499 int result = -1;
500 int ldb_ret = -1;
501 unsigned int i, j;
502 int extended_type = 1;
503
504 DEBUG(10, ("SearchRequest"));
505 DEBUGADD(10, (" basedn: %s", req->basedn));
506 DEBUGADD(10, (" filter: %s\n", ldb_filter_from_tree(call, req->tree)));
507
508 local_ctx = talloc_new(call);
509 NT_STATUS_HAVE_NO_MEMORY(local_ctx);
510
511 basedn = ldb_dn_new(local_ctx, samdb, req->basedn);
512 VALID_DN_SYNTAX(basedn);
513
514 DEBUG(10, ("SearchRequest: basedn: [%s]\n", req->basedn));
515 DEBUG(10, ("SearchRequest: filter: [%s]\n", ldb_filter_from_tree(call, req->tree)));
516
517 switch (req->scope) {
518 case LDAP_SEARCH_SCOPE_BASE:
519 scope_str = "BASE";
520 scope = LDB_SCOPE_BASE;
521 success_limit = 0;
522 break;
523 case LDAP_SEARCH_SCOPE_SINGLE:
524 scope_str = "ONE";
525 scope = LDB_SCOPE_ONELEVEL;
526 success_limit = 0;
527 break;
528 case LDAP_SEARCH_SCOPE_SUB:
529 scope_str = "SUB";
530 scope = LDB_SCOPE_SUBTREE;
531 success_limit = 0;
532 break;
533 default:
534 result = LDAP_PROTOCOL_ERROR;
535 map_ldb_error(local_ctx, LDB_ERR_PROTOCOL_ERROR, NULL,
536 &errstr);
537 errstr = talloc_asprintf(local_ctx,
538 "%s. Invalid scope", errstr);
539 goto reply;
540 }
541 DEBUG(10,("SearchRequest: scope: [%s]\n", scope_str));
542
543 if (req->num_attributes >= 1) {
544 attrs = talloc_array(local_ctx, const char *, req->num_attributes+1);
545 NT_STATUS_HAVE_NO_MEMORY(attrs);
546
547 for (i=0; i < req->num_attributes; i++) {
548 DEBUG(10,("SearchRequest: attrs: [%s]\n",req->attributes[i]));
549 attrs[i] = req->attributes[i];
550 }
551 attrs[i] = NULL;
552 }
553
554 DEBUG(5,("ldb_request %s dn=%s filter=%s\n",
555 scope_str, req->basedn, ldb_filter_from_tree(call, req->tree)));
556
557 res = talloc_zero(local_ctx, struct ldb_result);
558 NT_STATUS_HAVE_NO_MEMORY(res);
559
560 ldb_ret = ldb_build_search_req_ex(&lreq, samdb, local_ctx,
561 basedn, scope,
562 req->tree, attrs,
563 call->request->controls,
564 res, ldb_search_default_callback,
565 NULL);
566
567 if (ldb_ret != LDB_SUCCESS) {
568 goto reply;
569 }
570
571 if (call->conn->global_catalog) {
572 search_control = ldb_request_get_control(lreq, LDB_CONTROL_SEARCH_OPTIONS_OID);
573
574 search_options = NULL;
575 if (search_control) {
576 search_options = talloc_get_type(search_control->data, struct ldb_search_options_control);
577 search_options->search_options |= LDB_SEARCH_OPTION_PHANTOM_ROOT;
578 } else {
579 search_options = talloc(lreq, struct ldb_search_options_control);
580 NT_STATUS_HAVE_NO_MEMORY(search_options);
581 search_options->search_options = LDB_SEARCH_OPTION_PHANTOM_ROOT;
582 ldb_request_add_control(lreq, LDB_CONTROL_SEARCH_OPTIONS_OID, false, search_options);
583 }
584 }
585
586 extended_dn_control = ldb_request_get_control(lreq, LDB_CONTROL_EXTENDED_DN_OID);
587
588 if (extended_dn_control) {
589 if (extended_dn_control->data) {
590 extended_dn_decoded = talloc_get_type(extended_dn_control->data, struct ldb_extended_dn_control);
591 extended_type = extended_dn_decoded->type;
592 } else {
593 extended_type = 0;
594 }
595 }
596
597 ldb_set_timeout(samdb, lreq, req->timelimit);
598
599 ldb_req_mark_untrusted(lreq);
600
601 LDB_REQ_SET_LOCATION(lreq);
602
603 ldb_ret = ldb_request(samdb, lreq);
604
605 if (ldb_ret != LDB_SUCCESS) {
606 goto reply;
607 }
608
609 ldb_ret = ldb_wait(lreq->handle, LDB_WAIT_ALL);
610
611 if (ldb_ret == LDB_SUCCESS) {
612 for (i = 0; i < res->count; i++) {
613 ent_r = ldapsrv_init_reply(call, LDAP_TAG_SearchResultEntry);
614 NT_STATUS_HAVE_NO_MEMORY(ent_r);
615
616 /* Better to have the whole message kept here,
617 * than to find someone further up didn't put
618 * a value in the right spot in the talloc tree */
619 talloc_steal(ent_r, res->msgs[i]);
620
621 ent = &ent_r->msg->r.SearchResultEntry;
622 ent->dn = ldb_dn_get_extended_linearized(ent_r, res->msgs[i]->dn, extended_type);
623 ent->num_attributes = 0;
624 ent->attributes = NULL;
625 if (res->msgs[i]->num_elements == 0) {
626 goto queue_reply;
627 }
628 ent->num_attributes = res->msgs[i]->num_elements;
629 ent->attributes = talloc_array(ent_r, struct ldb_message_element, ent->num_attributes);
630 NT_STATUS_HAVE_NO_MEMORY(ent->attributes);
631 for (j=0; j < ent->num_attributes; j++) {
632 ent->attributes[j].name = res->msgs[i]->elements[j].name;
633 ent->attributes[j].num_values = 0;
634 ent->attributes[j].values = NULL;
635 if (req->attributesonly && (res->msgs[i]->elements[j].num_values == 0)) {
636 continue;
637 }
638 ent->attributes[j].num_values = res->msgs[i]->elements[j].num_values;
639 ent->attributes[j].values = res->msgs[i]->elements[j].values;
640 }
641 queue_reply:
642 ldapsrv_queue_reply(call, ent_r);
643 }
644
645 /* Send back referrals if they do exist (search operations) */
646 if (res->refs != NULL) {
647 char **ref;
648 struct ldap_SearchResRef *ent_ref;
649
650 for (ref = res->refs; *ref != NULL; ++ref) {
651 ent_r = ldapsrv_init_reply(call, LDAP_TAG_SearchResultReference);
652 NT_STATUS_HAVE_NO_MEMORY(ent_r);
653
654 /* Better to have the whole referrals kept here,
655 * than to find someone further up didn't put
656 * a value in the right spot in the talloc tree
657 */
658 talloc_steal(ent_r, *ref);
659
660 ent_ref = &ent_r->msg->r.SearchResultReference;
661 ent_ref->referral = *ref;
662
663 ldapsrv_queue_reply(call, ent_r);
664 }
665 }
666 }
667
668 reply:
669 done_r = ldapsrv_init_reply(call, LDAP_TAG_SearchResultDone);
670 NT_STATUS_HAVE_NO_MEMORY(done_r);
671
672 done = &done_r->msg->r.SearchResultDone;
673 done->dn = NULL;
674 done->referral = NULL;
675
676 if (result != -1) {
677 } else if (ldb_ret == LDB_SUCCESS) {
678 if (res->count >= success_limit) {
679 DEBUG(10,("SearchRequest: results: [%d]\n", res->count));
680 result = LDAP_SUCCESS;
681 errstr = NULL;
682 }
683 if (res->controls) {
684 done_r->msg->controls = res->controls;
685 talloc_steal(done_r, res->controls);
686 }
687 } else {
688 DEBUG(10,("SearchRequest: error\n"));
689 result = map_ldb_error(local_ctx, ldb_ret, ldb_errstring(samdb),
690 &errstr);
691 }
692
693 done->resultcode = result;
694 done->errormessage = (errstr?talloc_strdup(done_r, errstr):NULL);
695
696 talloc_free(local_ctx);
697
698 ldapsrv_queue_reply(call, done_r);
699 return NT_STATUS_OK;
700 }
701
702 static NTSTATUS ldapsrv_ModifyRequest(struct ldapsrv_call *call)
703 {
704 struct ldap_ModifyRequest *req = &call->request->r.ModifyRequest;
705 struct ldap_Result *modify_result;
706 struct ldapsrv_reply *modify_reply;
707 TALLOC_CTX *local_ctx;
708 struct ldb_context *samdb = call->conn->ldb;
709 struct ldb_message *msg = NULL;
710 struct ldb_dn *dn;
711 const char *errstr = NULL;
712 int result = LDAP_SUCCESS;
713 int ldb_ret;
714 unsigned int i,j;
715 struct ldb_result *res = NULL;
716
717 DEBUG(10, ("ModifyRequest"));
718 DEBUGADD(10, (" dn: %s\n", req->dn));
719
720 local_ctx = talloc_named(call, 0, "ModifyRequest local memory context");
721 NT_STATUS_HAVE_NO_MEMORY(local_ctx);
722
723 dn = ldb_dn_new(local_ctx, samdb, req->dn);
724 VALID_DN_SYNTAX(dn);
725
726 DEBUG(10, ("ModifyRequest: dn: [%s]\n", req->dn));
727
728 msg = talloc(local_ctx, struct ldb_message);
729 NT_STATUS_HAVE_NO_MEMORY(msg);
730
731 msg->dn = dn;
732 msg->num_elements = 0;
733 msg->elements = NULL;
734
735 if (req->num_mods > 0) {
736 msg->num_elements = req->num_mods;
737 msg->elements = talloc_array(msg, struct ldb_message_element, req->num_mods);
738 NT_STATUS_HAVE_NO_MEMORY(msg->elements);
739
740 for (i=0; i < msg->num_elements; i++) {
741 msg->elements[i].name = discard_const_p(char, req->mods[i].attrib.name);
742 msg->elements[i].num_values = 0;
743 msg->elements[i].values = NULL;
744
745 switch (req->mods[i].type) {
746 default:
747 result = LDAP_PROTOCOL_ERROR;
748 map_ldb_error(local_ctx,
749 LDB_ERR_PROTOCOL_ERROR, NULL, &errstr);
750 errstr = talloc_asprintf(local_ctx,
751 "%s. Invalid LDAP_MODIFY_* type", errstr);
752 goto reply;
753 case LDAP_MODIFY_ADD:
754 msg->elements[i].flags = LDB_FLAG_MOD_ADD;
755 break;
756 case LDAP_MODIFY_DELETE:
757 msg->elements[i].flags = LDB_FLAG_MOD_DELETE;
758 break;
759 case LDAP_MODIFY_REPLACE:
760 msg->elements[i].flags = LDB_FLAG_MOD_REPLACE;
761 break;
762 }
763
764 msg->elements[i].num_values = req->mods[i].attrib.num_values;
765 if (msg->elements[i].num_values > 0) {
766 msg->elements[i].values = talloc_array(msg->elements, struct ldb_val,
767 msg->elements[i].num_values);
768 NT_STATUS_HAVE_NO_MEMORY(msg->elements[i].values);
769
770 for (j=0; j < msg->elements[i].num_values; j++) {
771 msg->elements[i].values[j].length = req->mods[i].attrib.values[j].length;
772 msg->elements[i].values[j].data = req->mods[i].attrib.values[j].data;
773 }
774 }
775 }
776 }
777
778 reply:
779 modify_reply = ldapsrv_init_reply(call, LDAP_TAG_ModifyResponse);
780 NT_STATUS_HAVE_NO_MEMORY(modify_reply);
781
782 if (result == LDAP_SUCCESS) {
783 res = talloc_zero(local_ctx, struct ldb_result);
784 NT_STATUS_HAVE_NO_MEMORY(res);
785 ldb_ret = ldb_mod_req_with_controls(samdb, msg, call->request->controls, res);
786 result = map_ldb_error(local_ctx, ldb_ret, ldb_errstring(samdb),
787 &errstr);
788 }
789
790 modify_result = &modify_reply->msg->r.ModifyResponse;
791 modify_result->dn = NULL;
792 if ((res != NULL) && (res->refs != NULL)) {
793 modify_result->resultcode = map_ldb_error(local_ctx,
794 LDB_ERR_REFERRAL,
795 NULL, &errstr);
796 modify_result->errormessage = (errstr?talloc_strdup(modify_reply, errstr):NULL);
797 modify_result->referral = talloc_strdup(call, *res->refs);
798 } else {
799 modify_result->resultcode = result;
800 modify_result->errormessage = (errstr?talloc_strdup(modify_reply, errstr):NULL);
801 modify_result->referral = NULL;
802 }
803 talloc_free(local_ctx);
804
805 ldapsrv_queue_reply(call, modify_reply);
806 return NT_STATUS_OK;
807
808 }
809
810 static NTSTATUS ldapsrv_AddRequest(struct ldapsrv_call *call)
811 {
812 struct ldap_AddRequest *req = &call->request->r.AddRequest;
813 struct ldap_Result *add_result;
814 struct ldapsrv_reply *add_reply;
815 TALLOC_CTX *local_ctx;
816 struct ldb_context *samdb = call->conn->ldb;
817 struct ldb_message *msg = NULL;
818 struct ldb_dn *dn;
819 const char *errstr = NULL;
820 int result = LDAP_SUCCESS;
821 int ldb_ret;
822 unsigned int i,j;
823 struct ldb_result *res = NULL;
824
825 DEBUG(10, ("AddRequest"));
826 DEBUGADD(10, (" dn: %s\n", req->dn));
827
828 local_ctx = talloc_named(call, 0, "AddRequest local memory context");
829 NT_STATUS_HAVE_NO_MEMORY(local_ctx);
830
831 dn = ldb_dn_new(local_ctx, samdb, req->dn);
832 VALID_DN_SYNTAX(dn);
833
834 DEBUG(10, ("AddRequest: dn: [%s]\n", req->dn));
835
836 msg = talloc(local_ctx, struct ldb_message);
837 NT_STATUS_HAVE_NO_MEMORY(msg);
838
839 msg->dn = dn;
840 msg->num_elements = 0;
841 msg->elements = NULL;
842
843 if (req->num_attributes > 0) {
844 msg->num_elements = req->num_attributes;
845 msg->elements = talloc_array(msg, struct ldb_message_element, msg->num_elements);
846 NT_STATUS_HAVE_NO_MEMORY(msg->elements);
847
848 for (i=0; i < msg->num_elements; i++) {
849 msg->elements[i].name = discard_const_p(char, req->attributes[i].name);
850 msg->elements[i].flags = 0;
851 msg->elements[i].num_values = 0;
852 msg->elements[i].values = NULL;
853
854 if (req->attributes[i].num_values > 0) {
855 msg->elements[i].num_values = req->attributes[i].num_values;
856 msg->elements[i].values = talloc_array(msg->elements, struct ldb_val,
857 msg->elements[i].num_values);
858 NT_STATUS_HAVE_NO_MEMORY(msg->elements[i].values);
859
860 for (j=0; j < msg->elements[i].num_values; j++) {
861 msg->elements[i].values[j].length = req->attributes[i].values[j].length;
862 msg->elements[i].values[j].data = req->attributes[i].values[j].data;
863 }
864 }
865 }
866 }
867
868 reply:
869 add_reply = ldapsrv_init_reply(call, LDAP_TAG_AddResponse);
870 NT_STATUS_HAVE_NO_MEMORY(add_reply);
871
872 if (result == LDAP_SUCCESS) {
873 res = talloc_zero(local_ctx, struct ldb_result);
874 NT_STATUS_HAVE_NO_MEMORY(res);
875 ldb_ret = ldb_add_with_controls(samdb, msg, call->request->controls, res);
876 result = map_ldb_error(local_ctx, ldb_ret, ldb_errstring(samdb),
877 &errstr);
878 }
879
880 add_result = &add_reply->msg->r.AddResponse;
881 add_result->dn = NULL;
882 if ((res != NULL) && (res->refs != NULL)) {
883 add_result->resultcode = map_ldb_error(local_ctx,
884 LDB_ERR_REFERRAL, NULL,
885 &errstr);
886 add_result->errormessage = (errstr?talloc_strdup(add_reply,errstr):NULL);
887 add_result->referral = talloc_strdup(call, *res->refs);
888 } else {
889 add_result->resultcode = result;
890 add_result->errormessage = (errstr?talloc_strdup(add_reply,errstr):NULL);
891 add_result->referral = NULL;
892 }
893 talloc_free(local_ctx);
894
895 ldapsrv_queue_reply(call, add_reply);
896 return NT_STATUS_OK;
897
898 }
899
900 static NTSTATUS ldapsrv_DelRequest(struct ldapsrv_call *call)
901 {
902 struct ldap_DelRequest *req = &call->request->r.DelRequest;
903 struct ldap_Result *del_result;
904 struct ldapsrv_reply *del_reply;
905 TALLOC_CTX *local_ctx;
906 struct ldb_context *samdb = call->conn->ldb;
907 struct ldb_dn *dn;
908 const char *errstr = NULL;
909 int result = LDAP_SUCCESS;
910 int ldb_ret;
911 struct ldb_result *res = NULL;
912
913 DEBUG(10, ("DelRequest"));
914 DEBUGADD(10, (" dn: %s\n", req->dn));
915
916 local_ctx = talloc_named(call, 0, "DelRequest local memory context");
917 NT_STATUS_HAVE_NO_MEMORY(local_ctx);
918
919 dn = ldb_dn_new(local_ctx, samdb, req->dn);
920 VALID_DN_SYNTAX(dn);
921
922 DEBUG(10, ("DelRequest: dn: [%s]\n", req->dn));
923
924 reply:
925 del_reply = ldapsrv_init_reply(call, LDAP_TAG_DelResponse);
926 NT_STATUS_HAVE_NO_MEMORY(del_reply);
927
928 if (result == LDAP_SUCCESS) {
929 res = talloc_zero(local_ctx, struct ldb_result);
930 NT_STATUS_HAVE_NO_MEMORY(res);
931 ldb_ret = ldb_del_req_with_controls(samdb, dn, call->request->controls, res);
932 result = map_ldb_error(local_ctx, ldb_ret, ldb_errstring(samdb),
933 &errstr);
934 }
935
936 del_result = &del_reply->msg->r.DelResponse;
937 del_result->dn = NULL;
938 if ((res != NULL) && (res->refs != NULL)) {
939 del_result->resultcode = map_ldb_error(local_ctx,
940 LDB_ERR_REFERRAL, NULL,
941 &errstr);
942 del_result->errormessage = (errstr?talloc_strdup(del_reply,errstr):NULL);
943 del_result->referral = talloc_strdup(call, *res->refs);
944 } else {
945 del_result->resultcode = result;
946 del_result->errormessage = (errstr?talloc_strdup(del_reply,errstr):NULL);
947 del_result->referral = NULL;
948 }
949
950 talloc_free(local_ctx);
951
952 ldapsrv_queue_reply(call, del_reply);
953 return NT_STATUS_OK;
954 }
955
956 static NTSTATUS ldapsrv_ModifyDNRequest(struct ldapsrv_call *call)
957 {
958 struct ldap_ModifyDNRequest *req = &call->request->r.ModifyDNRequest;
959 struct ldap_Result *modifydn;
960 struct ldapsrv_reply *modifydn_r;
961 TALLOC_CTX *local_ctx;
962 struct ldb_context *samdb = call->conn->ldb;
963 struct ldb_dn *olddn, *newdn=NULL, *newrdn;
964 struct ldb_dn *parentdn = NULL;
965 const char *errstr = NULL;
966 int result = LDAP_SUCCESS;
967 int ldb_ret;
968 struct ldb_result *res = NULL;
969
970 DEBUG(10, ("ModifyDNRequest"));
971 DEBUGADD(10, (" dn: %s", req->dn));
972 DEBUGADD(10, (" newrdn: %s\n", req->newrdn));
973
974 local_ctx = talloc_named(call, 0, "ModifyDNRequest local memory context");
975 NT_STATUS_HAVE_NO_MEMORY(local_ctx);
976
977 olddn = ldb_dn_new(local_ctx, samdb, req->dn);
978 VALID_DN_SYNTAX(olddn);
979
980 newrdn = ldb_dn_new(local_ctx, samdb, req->newrdn);
981 VALID_DN_SYNTAX(newrdn);
982
983 DEBUG(10, ("ModifyDNRequest: olddn: [%s]\n", req->dn));
984 DEBUG(10, ("ModifyDNRequest: newrdn: [%s]\n", req->newrdn));
985
986 if (ldb_dn_get_comp_num(newrdn) == 0) {
987 result = LDAP_PROTOCOL_ERROR;
988 map_ldb_error(local_ctx, LDB_ERR_PROTOCOL_ERROR, NULL,
989 &errstr);
990 goto reply;
991 }
992
993 if (ldb_dn_get_comp_num(newrdn) > 1) {
994 result = LDAP_NAMING_VIOLATION;
995 map_ldb_error(local_ctx, LDB_ERR_NAMING_VIOLATION, NULL,
996 &errstr);
997 goto reply;
998 }
999
1000 /* we can't handle the rename if we should not remove the old dn */
1001 if (!req->deleteolddn) {
1002 result = LDAP_UNWILLING_TO_PERFORM;
1003 map_ldb_error(local_ctx, LDB_ERR_UNWILLING_TO_PERFORM, NULL,
1004 &errstr);
1005 errstr = talloc_asprintf(local_ctx,
1006 "%s. Old RDN must be deleted", errstr);
1007 goto reply;
1008 }
1009
1010 if (req->newsuperior) {
1011 parentdn = ldb_dn_new(local_ctx, samdb, req->newsuperior);
1012 VALID_DN_SYNTAX(parentdn);
1013 DEBUG(10, ("ModifyDNRequest: newsuperior: [%s]\n", 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
1032 reply:
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 = ldb_rename_with_controls(samdb, 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
1064 static 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 VALID_DN_SYNTAX(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 reply:
1098 compare_r = ldapsrv_init_reply(call, LDAP_TAG_CompareResponse);
1099 NT_STATUS_HAVE_NO_MEMORY(compare_r);
1100
1101 if (result == LDAP_SUCCESS) {
1102 ldb_ret = ldb_search(samdb, local_ctx, &res,
1103 dn, LDB_SCOPE_BASE, attrs, "%s", filter);
1104 if (ldb_ret != LDB_SUCCESS) {
1105 result = map_ldb_error(local_ctx, ldb_ret,
1106 ldb_errstring(samdb), &errstr);
1107 DEBUG(10,("CompareRequest: error: %s\n", errstr));
1108 } else if (res->count == 0) {
1109 DEBUG(10,("CompareRequest: doesn't matched\n"));
1110 result = LDAP_COMPARE_FALSE;
1111 errstr = NULL;
1112 } else if (res->count == 1) {
1113 DEBUG(10,("CompareRequest: matched\n"));
1114 result = LDAP_COMPARE_TRUE;
1115 errstr = NULL;
1116 } else if (res->count > 1) {
1117 result = LDAP_OTHER;
1118 map_ldb_error(local_ctx, LDB_ERR_OTHER, NULL, &errstr);
1119 errstr = talloc_asprintf(local_ctx,
1120 "%s. Too many objects match!", errstr);
1121 DEBUG(10,("CompareRequest: %d results: %s\n", res->count, errstr));
1122 }
1123 }
1124
1125 compare = &compare_r->msg->r.CompareResponse;
1126 compare->dn = NULL;
1127 compare->resultcode = result;
1128 compare->errormessage = (errstr?talloc_strdup(compare_r,errstr):NULL);
1129 compare->referral = NULL;
1130
1131 talloc_free(local_ctx);
1132
1133 ldapsrv_queue_reply(call, compare_r);
1134 return NT_STATUS_OK;
1135 }
1136
1137 static NTSTATUS ldapsrv_AbandonRequest(struct ldapsrv_call *call)
1138 {
1139 /* struct ldap_AbandonRequest *req = &call->request.r.AbandonRequest;*/
1140 DEBUG(10, ("AbandonRequest\n"));
1141 return NT_STATUS_OK;
1142 }
1143
1144 NTSTATUS ldapsrv_do_call(struct ldapsrv_call *call)
1145 {
1146 unsigned int i;
1147 struct ldap_message *msg = call->request;
1148 /* Check for undecoded critical extensions */
1149 for (i=0; msg->controls && msg->controls[i]; i++) {
1150 if (!msg->controls_decoded[i] &&
1151 msg->controls[i]->critical) {
1152 DEBUG(3, ("ldapsrv_do_call: Critical extension %s is not known to this server\n",
1153 msg->controls[i]->oid));
1154 return ldapsrv_unwilling(call, LDAP_UNAVAILABLE_CRITICAL_EXTENSION);
1155 }
1156 }
1157
1158 switch(call->request->type) {
1159 case LDAP_TAG_BindRequest:
1160 return ldapsrv_BindRequest(call);
1161 case LDAP_TAG_UnbindRequest:
1162 return ldapsrv_UnbindRequest(call);
1163 case LDAP_TAG_SearchRequest:
1164 return ldapsrv_SearchRequest(call);
1165 case LDAP_TAG_ModifyRequest:
1166 return ldapsrv_ModifyRequest(call);
1167 case LDAP_TAG_AddRequest:
1168 return ldapsrv_AddRequest(call);
1169 case LDAP_TAG_DelRequest:
1170 return ldapsrv_DelRequest(call);
1171 case LDAP_TAG_ModifyDNRequest:
1172 return ldapsrv_ModifyDNRequest(call);
1173 case LDAP_TAG_CompareRequest:
1174 return ldapsrv_CompareRequest(call);
1175 case LDAP_TAG_AbandonRequest:
1176 return ldapsrv_AbandonRequest(call);
1177 case LDAP_TAG_ExtendedRequest:
1178 return ldapsrv_ExtendedRequest(call);
1179 default:
1180 return ldapsrv_unwilling(call, LDAP_PROTOCOL_ERROR);
1181 }
1182 }
WIP