source: branches/samba-3.5.x/source4/ldap_server/ldap_backend.c

Last change on this file was 414, checked in by Herwig Bauernfeind, 15 years ago

Samba 3.5.0: Initial import
File size: 26.1 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 "libcli/ldap/ldap.h"
25#include "auth/credentials/credentials.h"
26#include "auth/gensec/gensec.h"
27#include "param/param.h"
28#include "smbd/service_stream.h"
29#include "dsdb/samdb/samdb.h"
30#include "lib/ldb/include/ldb_errors.h"
31#include "lib/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, &errstr);\
39 goto reply;\
40 }\
41} while(0)
42
43static int map_ldb_error(TALLOC_CTX *mem_ctx, int ldb_err,
44 const char **errstring)
45{
46 WERROR err;
47
48 switch (ldb_err) {
49 case LDB_SUCCESS:
50 err = WERR_OK;
51 break;
52 case LDB_ERR_OPERATIONS_ERROR:
53 err = WERR_DS_OPERATIONS_ERROR;
54 break;
55 case LDB_ERR_PROTOCOL_ERROR:
56 err = WERR_DS_PROTOCOL_ERROR;
57 break;
58 case LDB_ERR_TIME_LIMIT_EXCEEDED:
59 err = WERR_DS_TIMELIMIT_EXCEEDED;
60 break;
61 case LDB_ERR_SIZE_LIMIT_EXCEEDED:
62 err = WERR_DS_SIZE_LIMIT_EXCEEDED;
63 break;
64 case LDB_ERR_COMPARE_FALSE:
65 err = WERR_DS_COMPARE_FALSE;
66 break;
67 case LDB_ERR_COMPARE_TRUE:
68 err = WERR_DS_COMPARE_TRUE;
69 break;
70 case LDB_ERR_AUTH_METHOD_NOT_SUPPORTED:
71 err = WERR_DS_AUTH_METHOD_NOT_SUPPORTED;
72 break;
73 case LDB_ERR_STRONG_AUTH_REQUIRED:
74 err = WERR_DS_STRONG_AUTH_REQUIRED;
75 break;
76 case LDB_ERR_REFERRAL:
77 err = WERR_DS_REFERRAL;
78 break;
79 case LDB_ERR_ADMIN_LIMIT_EXCEEDED:
80 err = WERR_DS_ADMIN_LIMIT_EXCEEDED;
81 break;
82 case LDB_ERR_UNSUPPORTED_CRITICAL_EXTENSION:
83 err = WERR_DS_UNAVAILABLE_CRIT_EXTENSION;
84 break;
85 case LDB_ERR_CONFIDENTIALITY_REQUIRED:
86 err = WERR_DS_CONFIDENTIALITY_REQUIRED;
87 break;
88 case LDB_ERR_SASL_BIND_IN_PROGRESS:
89 err = WERR_DS_BUSY;
90 break;
91 case LDB_ERR_NO_SUCH_ATTRIBUTE:
92 err = WERR_DS_NO_ATTRIBUTE_OR_VALUE;
93 break;
94 case LDB_ERR_UNDEFINED_ATTRIBUTE_TYPE:
95 err = WERR_DS_ATTRIBUTE_TYPE_UNDEFINED;
96 break;
97 case LDB_ERR_INAPPROPRIATE_MATCHING:
98 err = WERR_DS_INAPPROPRIATE_MATCHING;
99 break;
100 case LDB_ERR_CONSTRAINT_VIOLATION:
101 err = WERR_DS_CONSTRAINT_VIOLATION;
102 break;
103 case LDB_ERR_ATTRIBUTE_OR_VALUE_EXISTS:
104 err = WERR_DS_ATTRIBUTE_OR_VALUE_EXISTS;
105 break;
106 case LDB_ERR_INVALID_ATTRIBUTE_SYNTAX:
107 err = WERR_DS_INVALID_ATTRIBUTE_SYNTAX;
108 break;
109 case LDB_ERR_NO_SUCH_OBJECT:
110 err = WERR_DS_NO_SUCH_OBJECT;
111 break;
112 case LDB_ERR_ALIAS_PROBLEM:
113 err = WERR_DS_ALIAS_PROBLEM;
114 break;
115 case LDB_ERR_INVALID_DN_SYNTAX:
116 err = WERR_DS_INVALID_DN_SYNTAX;
117 break;
118 case LDB_ERR_ALIAS_DEREFERENCING_PROBLEM:
119 err = WERR_DS_ALIAS_DEREF_PROBLEM;
120 break;
121 case LDB_ERR_INAPPROPRIATE_AUTHENTICATION:
122 err = WERR_DS_INAPPROPRIATE_AUTH;
123 break;
124 case LDB_ERR_INVALID_CREDENTIALS:
125 err = WERR_ACCESS_DENIED;
126 break;
127 case LDB_ERR_INSUFFICIENT_ACCESS_RIGHTS:
128 err = WERR_DS_INSUFF_ACCESS_RIGHTS;
129 break;
130 case LDB_ERR_BUSY:
131 err = WERR_DS_BUSY;
132 break;
133 case LDB_ERR_UNAVAILABLE:
134 err = WERR_DS_UNAVAILABLE;
135 break;
136 case LDB_ERR_UNWILLING_TO_PERFORM:
137 err = WERR_DS_UNWILLING_TO_PERFORM;
138 break;
139 case LDB_ERR_LOOP_DETECT:
140 err = WERR_DS_LOOP_DETECT;
141 break;
142 case LDB_ERR_NAMING_VIOLATION:
143 err = WERR_DS_NAMING_VIOLATION;
144 break;
145 case LDB_ERR_OBJECT_CLASS_VIOLATION:
146 err = WERR_DS_OBJ_CLASS_VIOLATION;
147 break;
148 case LDB_ERR_NOT_ALLOWED_ON_NON_LEAF:
149 err = WERR_DS_CANT_ON_NON_LEAF;
150 break;
151 case LDB_ERR_NOT_ALLOWED_ON_RDN:
152 err = WERR_DS_CANT_ON_RDN;
153 break;
154 case LDB_ERR_ENTRY_ALREADY_EXISTS:
155 err = WERR_DS_OBJ_STRING_NAME_EXISTS;
156 break;
157 case LDB_ERR_OBJECT_CLASS_MODS_PROHIBITED:
158 err = WERR_DS_CANT_MOD_OBJ_CLASS;
159 break;
160 case LDB_ERR_AFFECTS_MULTIPLE_DSAS:
161 err = WERR_DS_AFFECTS_MULTIPLE_DSAS;
162 break;
163 default:
164 err = WERR_DS_GENERIC_ERROR;
165 break;
166 }
167
168 *errstring = talloc_asprintf(mem_ctx, "%08x: %s", W_ERROR_V(err),
169 ldb_strerror(ldb_err));
170
171 /* result is 1:1 for now */
172 return ldb_err;
173}
174
175/*
176 connect to the sam database
177*/
178NTSTATUS ldapsrv_backend_Init(struct ldapsrv_connection *conn)
179{
180 conn->ldb = ldb_wrap_connect(conn,
181 conn->connection->event.ctx,
182 conn->lp_ctx,
183 lp_sam_url(conn->lp_ctx),
184 conn->session_info,
185 samdb_credentials(conn, conn->connection->event.ctx, conn->lp_ctx),
186 conn->global_catalog ? LDB_FLG_RDONLY : 0, NULL);
187 if (conn->ldb == NULL) {
188 return NT_STATUS_INTERNAL_DB_CORRUPTION;
189 }
190
191 if (conn->server_credentials) {
192 char **sasl_mechs = NULL;
193 struct gensec_security_ops **backends = gensec_security_all();
194 struct gensec_security_ops **ops
195 = gensec_use_kerberos_mechs(conn, backends, conn->server_credentials);
196 int i, j = 0;
197 for (i = 0; ops && ops[i]; i++) {
198 if (!lp_parm_bool(conn->lp_ctx, NULL, "gensec", ops[i]->name, ops[i]->enabled))
199 continue;
200
201 if (ops[i]->sasl_name && ops[i]->server_start) {
202 char *sasl_name = talloc_strdup(conn, ops[i]->sasl_name);
203
204 if (!sasl_name) {
205 return NT_STATUS_NO_MEMORY;
206 }
207 sasl_mechs = talloc_realloc(conn, sasl_mechs, char *, j + 2);
208 if (!sasl_mechs) {
209 return NT_STATUS_NO_MEMORY;
210 }
211 sasl_mechs[j] = sasl_name;
212 talloc_steal(sasl_mechs, sasl_name);
213 sasl_mechs[j+1] = NULL;
214 j++;
215 }
216 }
217 talloc_unlink(conn, ops);
218 ldb_set_opaque(conn->ldb, "supportedSASLMechanims", sasl_mechs);
219 }
220
221 return NT_STATUS_OK;
222}
223
224struct ldapsrv_reply *ldapsrv_init_reply(struct ldapsrv_call *call, uint8_t type)
225{
226 struct ldapsrv_reply *reply;
227
228 reply = talloc(call, struct ldapsrv_reply);
229 if (!reply) {
230 return NULL;
231 }
232 reply->msg = talloc(reply, struct ldap_message);
233 if (reply->msg == NULL) {
234 talloc_free(reply);
235 return NULL;
236 }
237
238 reply->msg->messageid = call->request->messageid;
239 reply->msg->type = type;
240 reply->msg->controls = NULL;
241
242 return reply;
243}
244
245void ldapsrv_queue_reply(struct ldapsrv_call *call, struct ldapsrv_reply *reply)
246{
247 DLIST_ADD_END(call->replies, reply, struct ldapsrv_reply *);
248}
249
250static NTSTATUS ldapsrv_unwilling(struct ldapsrv_call *call, int error)
251{
252 struct ldapsrv_reply *reply;
253 struct ldap_ExtendedResponse *r;
254
255 DEBUG(10,("Unwilling type[%d] id[%d]\n", call->request->type, call->request->messageid));
256
257 reply = ldapsrv_init_reply(call, LDAP_TAG_ExtendedResponse);
258 if (!reply) {
259 return NT_STATUS_NO_MEMORY;
260 }
261
262 r = &reply->msg->r.ExtendedResponse;
263 r->response.resultcode = error;
264 r->response.dn = NULL;
265 r->response.errormessage = NULL;
266 r->response.referral = NULL;
267 r->oid = NULL;
268 r->value = NULL;
269
270 ldapsrv_queue_reply(call, reply);
271 return NT_STATUS_OK;
272}
273
274static NTSTATUS ldapsrv_SearchRequest(struct ldapsrv_call *call)
275{
276 struct ldap_SearchRequest *req = &call->request->r.SearchRequest;
277 struct ldap_SearchResEntry *ent;
278 struct ldap_Result *done;
279 struct ldapsrv_reply *ent_r, *done_r;
280 TALLOC_CTX *local_ctx;
281 struct ldb_context *samdb = talloc_get_type(call->conn->ldb, struct ldb_context);
282 struct ldb_dn *basedn;
283 struct ldb_result *res = NULL;
284 struct ldb_request *lreq;
285 struct ldb_control *search_control;
286 struct ldb_search_options_control *search_options;
287 struct ldb_control *extended_dn_control;
288 struct ldb_extended_dn_control *extended_dn_decoded = NULL;
289 enum ldb_scope scope = LDB_SCOPE_DEFAULT;
290 const char **attrs = NULL;
291 const char *scope_str, *errstr = NULL;
292 int success_limit = 1;
293 int result = -1;
294 int ldb_ret = -1;
295 int i, j;
296 int extended_type = 1;
297
298 DEBUG(10, ("SearchRequest"));
299 DEBUGADD(10, (" basedn: %s", req->basedn));
300 DEBUGADD(10, (" filter: %s\n", ldb_filter_from_tree(call, req->tree)));
301
302 local_ctx = talloc_new(call);
303 NT_STATUS_HAVE_NO_MEMORY(local_ctx);
304
305 basedn = ldb_dn_new(local_ctx, samdb, req->basedn);
306 VALID_DN_SYNTAX(basedn);
307
308 DEBUG(10, ("SearchRequest: basedn: [%s]\n", req->basedn));
309 DEBUG(10, ("SearchRequest: filter: [%s]\n", ldb_filter_from_tree(call, req->tree)));
310
311 switch (req->scope) {
312 case LDAP_SEARCH_SCOPE_BASE:
313 scope_str = "BASE";
314 scope = LDB_SCOPE_BASE;
315 success_limit = 0;
316 break;
317 case LDAP_SEARCH_SCOPE_SINGLE:
318 scope_str = "ONE";
319 scope = LDB_SCOPE_ONELEVEL;
320 success_limit = 0;
321 break;
322 case LDAP_SEARCH_SCOPE_SUB:
323 scope_str = "SUB";
324 scope = LDB_SCOPE_SUBTREE;
325 success_limit = 0;
326 break;
327 default:
328 result = LDAP_PROTOCOL_ERROR;
329 map_ldb_error(local_ctx, LDB_ERR_PROTOCOL_ERROR,
330 &errstr);
331 errstr = talloc_asprintf(local_ctx,
332 "%s. Invalid scope", errstr);
333 goto reply;
334 }
335 DEBUG(10,("SearchRequest: scope: [%s]\n", scope_str));
336
337 if (req->num_attributes >= 1) {
338 attrs = talloc_array(local_ctx, const char *, req->num_attributes+1);
339 NT_STATUS_HAVE_NO_MEMORY(attrs);
340
341 for (i=0; i < req->num_attributes; i++) {
342 DEBUG(10,("SearchRequest: attrs: [%s]\n",req->attributes[i]));
343 attrs[i] = req->attributes[i];
344 }
345 attrs[i] = NULL;
346 }
347
348 DEBUG(5,("ldb_request %s dn=%s filter=%s\n",
349 scope_str, req->basedn, ldb_filter_from_tree(call, req->tree)));
350
351 res = talloc_zero(local_ctx, struct ldb_result);
352 NT_STATUS_HAVE_NO_MEMORY(res);
353
354 ldb_ret = ldb_build_search_req_ex(&lreq, samdb, local_ctx,
355 basedn, scope,
356 req->tree, attrs,
357 call->request->controls,
358 res, ldb_search_default_callback,
359 NULL);
360
361 if (ldb_ret != LDB_SUCCESS) {
362 goto reply;
363 }
364
365 if (call->conn->global_catalog) {
366 search_control = ldb_request_get_control(lreq, LDB_CONTROL_SEARCH_OPTIONS_OID);
367
368 search_options = NULL;
369 if (search_control) {
370 search_options = talloc_get_type(search_control->data, struct ldb_search_options_control);
371 search_options->search_options |= LDB_SEARCH_OPTION_PHANTOM_ROOT;
372 } else {
373 search_options = talloc(lreq, struct ldb_search_options_control);
374 NT_STATUS_HAVE_NO_MEMORY(search_options);
375 search_options->search_options = LDB_SEARCH_OPTION_PHANTOM_ROOT;
376 ldb_request_add_control(lreq, LDB_CONTROL_SEARCH_OPTIONS_OID, false, search_options);
377 }
378 }
379
380 extended_dn_control = ldb_request_get_control(lreq, LDB_CONTROL_EXTENDED_DN_OID);
381
382 if (extended_dn_control) {
383 if (extended_dn_control->data) {
384 extended_dn_decoded = talloc_get_type(extended_dn_control->data, struct ldb_extended_dn_control);
385 extended_type = extended_dn_decoded->type;
386 } else {
387 extended_type = 0;
388 }
389 }
390
391 ldb_set_timeout(samdb, lreq, req->timelimit);
392
393 ldb_ret = ldb_request(samdb, lreq);
394
395 if (ldb_ret != LDB_SUCCESS) {
396 goto reply;
397 }
398
399 ldb_ret = ldb_wait(lreq->handle, LDB_WAIT_ALL);
400
401 if (ldb_ret == LDB_SUCCESS) {
402 for (i = 0; i < res->count; i++) {
403 ent_r = ldapsrv_init_reply(call, LDAP_TAG_SearchResultEntry);
404 NT_STATUS_HAVE_NO_MEMORY(ent_r);
405
406 /* Better to have the whole message kept here,
407 * than to find someone further up didn't put
408 * a value in the right spot in the talloc tree */
409 talloc_steal(ent_r, res->msgs[i]);
410
411 ent = &ent_r->msg->r.SearchResultEntry;
412 ent->dn = ldb_dn_get_extended_linearized(ent_r, res->msgs[i]->dn, extended_type);
413 ent->num_attributes = 0;
414 ent->attributes = NULL;
415 if (res->msgs[i]->num_elements == 0) {
416 goto queue_reply;
417 }
418 ent->num_attributes = res->msgs[i]->num_elements;
419 ent->attributes = talloc_array(ent_r, struct ldb_message_element, ent->num_attributes);
420 NT_STATUS_HAVE_NO_MEMORY(ent->attributes);
421 for (j=0; j < ent->num_attributes; j++) {
422 ent->attributes[j].name = res->msgs[i]->elements[j].name;
423 ent->attributes[j].num_values = 0;
424 ent->attributes[j].values = NULL;
425 if (req->attributesonly && (res->msgs[i]->elements[j].num_values == 0)) {
426 continue;
427 }
428 ent->attributes[j].num_values = res->msgs[i]->elements[j].num_values;
429 ent->attributes[j].values = res->msgs[i]->elements[j].values;
430 }
431queue_reply:
432 ldapsrv_queue_reply(call, ent_r);
433 }
434 }
435
436reply:
437 done_r = ldapsrv_init_reply(call, LDAP_TAG_SearchResultDone);
438 NT_STATUS_HAVE_NO_MEMORY(done_r);
439
440 done = &done_r->msg->r.SearchResultDone;
441 done->dn = NULL;
442 done->referral = NULL;
443
444 if (result != -1) {
445 } else if (ldb_ret == LDB_SUCCESS) {
446 if (res->count >= success_limit) {
447 DEBUG(10,("SearchRequest: results: [%d]\n", res->count));
448 result = LDAP_SUCCESS;
449 errstr = NULL;
450 }
451 if (res->controls) {
452 done_r->msg->controls = res->controls;
453 talloc_steal(done_r, res->controls);
454 }
455 } else {
456 DEBUG(10,("SearchRequest: error\n"));
457 result = map_ldb_error(local_ctx, ldb_ret, &errstr);
458 }
459
460 done->resultcode = result;
461 done->errormessage = (errstr?talloc_strdup(done_r, errstr):NULL);
462
463 talloc_free(local_ctx);
464
465 ldapsrv_queue_reply(call, done_r);
466 return NT_STATUS_OK;
467}
468
469static NTSTATUS ldapsrv_ModifyRequest(struct ldapsrv_call *call)
470{
471 struct ldap_ModifyRequest *req = &call->request->r.ModifyRequest;
472 struct ldap_Result *modify_result;
473 struct ldapsrv_reply *modify_reply;
474 TALLOC_CTX *local_ctx;
475 struct ldb_context *samdb = call->conn->ldb;
476 struct ldb_message *msg = NULL;
477 struct ldb_dn *dn;
478 const char *errstr = NULL;
479 int result = LDAP_SUCCESS;
480 int ldb_ret;
481 int i,j;
482
483 DEBUG(10, ("ModifyRequest"));
484 DEBUGADD(10, (" dn: %s", req->dn));
485
486 local_ctx = talloc_named(call, 0, "ModifyRequest local memory context");
487 NT_STATUS_HAVE_NO_MEMORY(local_ctx);
488
489 dn = ldb_dn_new(local_ctx, samdb, req->dn);
490 VALID_DN_SYNTAX(dn);
491
492 DEBUG(10, ("ModifyRequest: dn: [%s]\n", req->dn));
493
494 msg = talloc(local_ctx, struct ldb_message);
495 NT_STATUS_HAVE_NO_MEMORY(msg);
496
497 msg->dn = dn;
498 msg->num_elements = 0;
499 msg->elements = NULL;
500
501 if (req->num_mods > 0) {
502 msg->num_elements = req->num_mods;
503 msg->elements = talloc_array(msg, struct ldb_message_element, req->num_mods);
504 NT_STATUS_HAVE_NO_MEMORY(msg->elements);
505
506 for (i=0; i < msg->num_elements; i++) {
507 msg->elements[i].name = discard_const_p(char, req->mods[i].attrib.name);
508 msg->elements[i].num_values = 0;
509 msg->elements[i].values = NULL;
510
511 switch (req->mods[i].type) {
512 default:
513 result = LDAP_PROTOCOL_ERROR;
514 map_ldb_error(local_ctx,
515 LDB_ERR_PROTOCOL_ERROR, &errstr);
516 errstr = talloc_asprintf(local_ctx,
517 "%s. Invalid LDAP_MODIFY_* type", errstr);
518 goto reply;
519 case LDAP_MODIFY_ADD:
520 msg->elements[i].flags = LDB_FLAG_MOD_ADD;
521 break;
522 case LDAP_MODIFY_DELETE:
523 msg->elements[i].flags = LDB_FLAG_MOD_DELETE;
524 break;
525 case LDAP_MODIFY_REPLACE:
526 msg->elements[i].flags = LDB_FLAG_MOD_REPLACE;
527 break;
528 }
529
530 msg->elements[i].num_values = req->mods[i].attrib.num_values;
531 if (msg->elements[i].num_values > 0) {
532 msg->elements[i].values = talloc_array(msg->elements, struct ldb_val,
533 msg->elements[i].num_values);
534 NT_STATUS_HAVE_NO_MEMORY(msg->elements[i].values);
535
536 for (j=0; j < msg->elements[i].num_values; j++) {
537 if (!(req->mods[i].attrib.values[j].length > 0)) {
538 result = LDAP_OTHER;
539
540 map_ldb_error(local_ctx,
541 LDB_ERR_OTHER, &errstr);
542 errstr = talloc_asprintf(local_ctx,
543 "%s. Empty attribute values not allowed", errstr);
544 goto reply;
545 }
546 msg->elements[i].values[j].length = req->mods[i].attrib.values[j].length;
547 msg->elements[i].values[j].data = req->mods[i].attrib.values[j].data;
548 }
549 }
550 }
551 } else {
552 result = LDAP_OTHER;
553 map_ldb_error(local_ctx, LDB_ERR_OTHER, &errstr);
554 errstr = talloc_asprintf(local_ctx,
555 "%s. No mods are not allowed", errstr);
556 goto reply;
557 }
558
559reply:
560 modify_reply = ldapsrv_init_reply(call, LDAP_TAG_ModifyResponse);
561 NT_STATUS_HAVE_NO_MEMORY(modify_reply);
562
563 if (result == LDAP_SUCCESS) {
564 ldb_ret = ldb_modify(samdb, msg);
565 result = map_ldb_error(local_ctx, ldb_ret, &errstr);
566 }
567
568 modify_result = &modify_reply->msg->r.AddResponse;
569 modify_result->dn = NULL;
570 modify_result->resultcode = result;
571 modify_result->errormessage = (errstr?talloc_strdup(modify_reply, errstr):NULL);
572 modify_result->referral = NULL;
573
574 talloc_free(local_ctx);
575
576 ldapsrv_queue_reply(call, modify_reply);
577 return NT_STATUS_OK;
578
579}
580
581static NTSTATUS ldapsrv_AddRequest(struct ldapsrv_call *call)
582{
583 struct ldap_AddRequest *req = &call->request->r.AddRequest;
584 struct ldap_Result *add_result;
585 struct ldapsrv_reply *add_reply;
586 TALLOC_CTX *local_ctx;
587 struct ldb_context *samdb = call->conn->ldb;
588 struct ldb_message *msg = NULL;
589 struct ldb_dn *dn;
590 const char *errstr = NULL;
591 int result = LDAP_SUCCESS;
592 int ldb_ret;
593 int i,j;
594
595 DEBUG(10, ("AddRequest"));
596 DEBUGADD(10, (" dn: %s", req->dn));
597
598 local_ctx = talloc_named(call, 0, "AddRequest local memory context");
599 NT_STATUS_HAVE_NO_MEMORY(local_ctx);
600
601 dn = ldb_dn_new(local_ctx, samdb, req->dn);
602 VALID_DN_SYNTAX(dn);
603
604 DEBUG(10, ("AddRequest: dn: [%s]\n", req->dn));
605
606 msg = talloc(local_ctx, struct ldb_message);
607 NT_STATUS_HAVE_NO_MEMORY(msg);
608
609 msg->dn = dn;
610 msg->num_elements = 0;
611 msg->elements = NULL;
612
613 if (req->num_attributes > 0) {
614 msg->num_elements = req->num_attributes;
615 msg->elements = talloc_array(msg, struct ldb_message_element, msg->num_elements);
616 NT_STATUS_HAVE_NO_MEMORY(msg->elements);
617
618 for (i=0; i < msg->num_elements; i++) {
619 msg->elements[i].name = discard_const_p(char, req->attributes[i].name);
620 msg->elements[i].flags = 0;
621 msg->elements[i].num_values = 0;
622 msg->elements[i].values = NULL;
623
624 if (req->attributes[i].num_values > 0) {
625 msg->elements[i].num_values = req->attributes[i].num_values;
626 msg->elements[i].values = talloc_array(msg->elements, struct ldb_val,
627 msg->elements[i].num_values);
628 NT_STATUS_HAVE_NO_MEMORY(msg->elements[i].values);
629
630 for (j=0; j < msg->elements[i].num_values; j++) {
631 if (!(req->attributes[i].values[j].length > 0)) {
632 result = LDAP_OTHER;
633 map_ldb_error(local_ctx,
634 LDB_ERR_OTHER, &errstr);
635 errstr = talloc_asprintf(local_ctx,
636 "%s. Empty attribute values not allowed", errstr);
637 goto reply;
638 }
639 msg->elements[i].values[j].length = req->attributes[i].values[j].length;
640 msg->elements[i].values[j].data = req->attributes[i].values[j].data;
641 }
642 } else {
643 result = LDAP_OTHER;
644 map_ldb_error(local_ctx, LDB_ERR_OTHER, &errstr);
645 errstr = talloc_asprintf(local_ctx,
646 "%s. No attribute values are not allowed", errstr);
647 goto reply;
648 }
649 }
650 } else {
651 result = LDAP_OTHER;
652 map_ldb_error(local_ctx, LDB_ERR_OTHER, &errstr);
653 errstr = talloc_asprintf(local_ctx,
654 "%s. No attributes are not allowed", errstr);
655 goto reply;
656 }
657
658reply:
659 add_reply = ldapsrv_init_reply(call, LDAP_TAG_AddResponse);
660 NT_STATUS_HAVE_NO_MEMORY(add_reply);
661
662 if (result == LDAP_SUCCESS) {
663 ldb_ret = ldb_add(samdb, msg);
664 result = map_ldb_error(local_ctx, ldb_ret, &errstr);
665 }
666
667 add_result = &add_reply->msg->r.AddResponse;
668 add_result->dn = NULL;
669 add_result->resultcode = result;
670 add_result->errormessage = (errstr?talloc_strdup(add_reply,errstr):NULL);
671 add_result->referral = NULL;
672
673 talloc_free(local_ctx);
674
675 ldapsrv_queue_reply(call, add_reply);
676 return NT_STATUS_OK;
677
678}
679
680static NTSTATUS ldapsrv_DelRequest(struct ldapsrv_call *call)
681{
682 struct ldap_DelRequest *req = &call->request->r.DelRequest;
683 struct ldap_Result *del_result;
684 struct ldapsrv_reply *del_reply;
685 TALLOC_CTX *local_ctx;
686 struct ldb_context *samdb = call->conn->ldb;
687 struct ldb_dn *dn;
688 const char *errstr = NULL;
689 int result = LDAP_SUCCESS;
690 int ldb_ret;
691
692 DEBUG(10, ("DelRequest"));
693 DEBUGADD(10, (" dn: %s", req->dn));
694
695 local_ctx = talloc_named(call, 0, "DelRequest local memory context");
696 NT_STATUS_HAVE_NO_MEMORY(local_ctx);
697
698 dn = ldb_dn_new(local_ctx, samdb, req->dn);
699 VALID_DN_SYNTAX(dn);
700
701 DEBUG(10, ("DelRequest: dn: [%s]\n", req->dn));
702
703reply:
704 del_reply = ldapsrv_init_reply(call, LDAP_TAG_DelResponse);
705 NT_STATUS_HAVE_NO_MEMORY(del_reply);
706
707 if (result == LDAP_SUCCESS) {
708 ldb_ret = ldb_delete(samdb, dn);
709 result = map_ldb_error(local_ctx, ldb_ret, &errstr);
710 }
711
712 del_result = &del_reply->msg->r.DelResponse;
713 del_result->dn = NULL;
714 del_result->resultcode = result;
715 del_result->errormessage = (errstr?talloc_strdup(del_reply,errstr):NULL);
716 del_result->referral = NULL;
717
718 talloc_free(local_ctx);
719
720 ldapsrv_queue_reply(call, del_reply);
721 return NT_STATUS_OK;
722}
723
724static NTSTATUS ldapsrv_ModifyDNRequest(struct ldapsrv_call *call)
725{
726 struct ldap_ModifyDNRequest *req = &call->request->r.ModifyDNRequest;
727 struct ldap_Result *modifydn;
728 struct ldapsrv_reply *modifydn_r;
729 TALLOC_CTX *local_ctx;
730 struct ldb_context *samdb = call->conn->ldb;
731 struct ldb_dn *olddn, *newdn=NULL, *newrdn;
732 struct ldb_dn *parentdn = NULL;
733 const char *errstr = NULL;
734 int result = LDAP_SUCCESS;
735 int ldb_ret;
736
737 DEBUG(10, ("ModifyDNRequest"));
738 DEBUGADD(10, (" dn: %s", req->dn));
739 DEBUGADD(10, (" newrdn: %s", req->newrdn));
740
741 local_ctx = talloc_named(call, 0, "ModifyDNRequest local memory context");
742 NT_STATUS_HAVE_NO_MEMORY(local_ctx);
743
744 olddn = ldb_dn_new(local_ctx, samdb, req->dn);
745 VALID_DN_SYNTAX(olddn);
746
747 newrdn = ldb_dn_new(local_ctx, samdb, req->newrdn);
748 VALID_DN_SYNTAX(newrdn);
749
750 DEBUG(10, ("ModifyDNRequest: olddn: [%s]\n", req->dn));
751 DEBUG(10, ("ModifyDNRequest: newrdn: [%s]\n", req->newrdn));
752
753 /* we can't handle the rename if we should not remove the old dn */
754 if (!req->deleteolddn) {
755 result = LDAP_UNWILLING_TO_PERFORM;
756 map_ldb_error(local_ctx, LDB_ERR_UNWILLING_TO_PERFORM, &errstr);
757 errstr = talloc_asprintf(local_ctx,
758 "%s. Old RDN must be deleted", errstr);
759 goto reply;
760 }
761
762 if (req->newsuperior) {
763 parentdn = ldb_dn_new(local_ctx, samdb, req->newsuperior);
764 VALID_DN_SYNTAX(parentdn);
765 DEBUG(10, ("ModifyDNRequest: newsuperior: [%s]\n", req->newsuperior));
766
767 if (ldb_dn_get_comp_num(parentdn) < 1) {
768 result = LDAP_AFFECTS_MULTIPLE_DSAS;
769 map_ldb_error(local_ctx, LDB_ERR_AFFECTS_MULTIPLE_DSAS,
770 &errstr);
771 errstr = talloc_asprintf(local_ctx,
772 "%s. Error new Superior DN invalid", errstr);
773 goto reply;
774 }
775 }
776
777 if (!parentdn) {
778 parentdn = ldb_dn_get_parent(local_ctx, olddn);
779 NT_STATUS_HAVE_NO_MEMORY(parentdn);
780 }
781
782 if ( ! ldb_dn_add_child_fmt(parentdn,
783 "%s=%s",
784 ldb_dn_get_rdn_name(newrdn),
785 (char *)ldb_dn_get_rdn_val(newrdn)->data)) {
786 result = LDAP_OTHER;
787 goto reply;
788 }
789 newdn = parentdn;
790
791reply:
792 modifydn_r = ldapsrv_init_reply(call, LDAP_TAG_ModifyDNResponse);
793 NT_STATUS_HAVE_NO_MEMORY(modifydn_r);
794
795 if (result == LDAP_SUCCESS) {
796 ldb_ret = ldb_rename(samdb, olddn, newdn);
797 result = map_ldb_error(local_ctx, ldb_ret, &errstr);
798 }
799
800 modifydn = &modifydn_r->msg->r.ModifyDNResponse;
801 modifydn->dn = NULL;
802 modifydn->resultcode = result;
803 modifydn->errormessage = (errstr?talloc_strdup(modifydn_r,errstr):NULL);
804 modifydn->referral = NULL;
805
806 talloc_free(local_ctx);
807
808 ldapsrv_queue_reply(call, modifydn_r);
809 return NT_STATUS_OK;
810}
811
812static NTSTATUS ldapsrv_CompareRequest(struct ldapsrv_call *call)
813{
814 struct ldap_CompareRequest *req = &call->request->r.CompareRequest;
815 struct ldap_Result *compare;
816 struct ldapsrv_reply *compare_r;
817 TALLOC_CTX *local_ctx;
818 struct ldb_context *samdb = call->conn->ldb;
819 struct ldb_result *res = NULL;
820 struct ldb_dn *dn;
821 const char *attrs[1];
822 const char *errstr = NULL;
823 const char *filter = NULL;
824 int result = LDAP_SUCCESS;
825 int ldb_ret;
826
827 DEBUG(10, ("CompareRequest"));
828 DEBUGADD(10, (" dn: %s", req->dn));
829
830 local_ctx = talloc_named(call, 0, "CompareRequest local_memory_context");
831 NT_STATUS_HAVE_NO_MEMORY(local_ctx);
832
833 dn = ldb_dn_new(local_ctx, samdb, req->dn);
834 VALID_DN_SYNTAX(dn);
835
836 DEBUG(10, ("CompareRequest: dn: [%s]\n", req->dn));
837 filter = talloc_asprintf(local_ctx, "(%s=%*s)", req->attribute,
838 (int)req->value.length, req->value.data);
839 NT_STATUS_HAVE_NO_MEMORY(filter);
840
841 DEBUGADD(10, ("CompareRequest: attribute: [%s]\n", filter));
842
843 attrs[0] = NULL;
844
845reply:
846 compare_r = ldapsrv_init_reply(call, LDAP_TAG_CompareResponse);
847 NT_STATUS_HAVE_NO_MEMORY(compare_r);
848
849 if (result == LDAP_SUCCESS) {
850 ldb_ret = ldb_search(samdb, local_ctx, &res,
851 dn, LDB_SCOPE_BASE, attrs, "%s", filter);
852 if (ldb_ret != LDB_SUCCESS) {
853 result = map_ldb_error(local_ctx, ldb_ret, &errstr);
854 DEBUG(10,("CompareRequest: error: %s\n", errstr));
855 } else if (res->count == 0) {
856 DEBUG(10,("CompareRequest: doesn't matched\n"));
857 result = LDAP_COMPARE_FALSE;
858 errstr = NULL;
859 } else if (res->count == 1) {
860 DEBUG(10,("CompareRequest: matched\n"));
861 result = LDAP_COMPARE_TRUE;
862 errstr = NULL;
863 } else if (res->count > 1) {
864 result = LDAP_OTHER;
865 map_ldb_error(local_ctx, LDB_ERR_OTHER, &errstr);
866 errstr = talloc_asprintf(local_ctx,
867 "%s. Too many objects match!", errstr);
868 DEBUG(10,("CompareRequest: %d results: %s\n", res->count, errstr));
869 }
870 }
871
872 compare = &compare_r->msg->r.CompareResponse;
873 compare->dn = NULL;
874 compare->resultcode = result;
875 compare->errormessage = (errstr?talloc_strdup(compare_r,errstr):NULL);
876 compare->referral = NULL;
877
878 talloc_free(local_ctx);
879
880 ldapsrv_queue_reply(call, compare_r);
881 return NT_STATUS_OK;
882}
883
884static NTSTATUS ldapsrv_AbandonRequest(struct ldapsrv_call *call)
885{
886/* struct ldap_AbandonRequest *req = &call->request.r.AbandonRequest;*/
887 DEBUG(10, ("AbandonRequest\n"));
888 return NT_STATUS_OK;
889}
890
891NTSTATUS ldapsrv_do_call(struct ldapsrv_call *call)
892{
893 int i;
894 struct ldap_message *msg = call->request;
895 /* Check for undecoded critical extensions */
896 for (i=0; msg->controls && msg->controls[i]; i++) {
897 if (!msg->controls_decoded[i] &&
898 msg->controls[i]->critical) {
899 DEBUG(3, ("ldapsrv_do_call: Critical extension %s is not known to this server\n",
900 msg->controls[i]->oid));
901 return ldapsrv_unwilling(call, LDAP_UNAVAILABLE_CRITICAL_EXTENSION);
902 }
903 }
904
905 switch(call->request->type) {
906 case LDAP_TAG_BindRequest:
907 return ldapsrv_BindRequest(call);
908 case LDAP_TAG_UnbindRequest:
909 return ldapsrv_UnbindRequest(call);
910 case LDAP_TAG_SearchRequest:
911 return ldapsrv_SearchRequest(call);
912 case LDAP_TAG_ModifyRequest:
913 return ldapsrv_ModifyRequest(call);
914 case LDAP_TAG_AddRequest:
915 return ldapsrv_AddRequest(call);
916 case LDAP_TAG_DelRequest:
917 return ldapsrv_DelRequest(call);
918 case LDAP_TAG_ModifyDNRequest:
919 return ldapsrv_ModifyDNRequest(call);
920 case LDAP_TAG_CompareRequest:
921 return ldapsrv_CompareRequest(call);
922 case LDAP_TAG_AbandonRequest:
923 return ldapsrv_AbandonRequest(call);
924 case LDAP_TAG_ExtendedRequest:
925 return ldapsrv_ExtendedRequest(call);
926 default:
927 return ldapsrv_unwilling(call, 2);
928 }
929}
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