Line data Source code
1 : /*
2 : Unix SMB/CIFS implementation.
3 :
4 : rootDSE ldb module
5 :
6 : Copyright (C) Andrew Tridgell 2005
7 : Copyright (C) Simo Sorce 2005-2008
8 : Copyright (C) Matthieu Patou <mat@matws.net> 2011
9 :
10 : This program is free software; you can redistribute it and/or modify
11 : it under the terms of the GNU General Public License as published by
12 : the Free Software Foundation; either version 3 of the License, or
13 : (at your option) any later version.
14 :
15 : This program is distributed in the hope that it will be useful,
16 : but WITHOUT ANY WARRANTY; without even the implied warranty of
17 : MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 : GNU General Public License for more details.
19 :
20 : You should have received a copy of the GNU General Public License
21 : along with this program. If not, see <http://www.gnu.org/licenses/>.
22 : */
23 :
24 : #include "includes.h"
25 : #include <ldb.h>
26 : #include <ldb_module.h>
27 : #include "system/time.h"
28 : #include "dsdb/samdb/samdb.h"
29 : #include "version.h"
30 : #include "dsdb/samdb/ldb_modules/util.h"
31 : #include "libcli/security/security.h"
32 : #include "librpc/ndr/libndr.h"
33 : #include "auth/auth.h"
34 : #include "param/param.h"
35 : #include "lib/messaging/irpc.h"
36 : #include "librpc/gen_ndr/ndr_irpc_c.h"
37 : #include "lib/tsocket/tsocket.h"
38 : #include "cldap_server/cldap_server.h"
39 : #include "lib/events/events.h"
40 :
41 : #undef strcasecmp
42 :
43 : struct rootdse_private_data {
44 : unsigned int num_controls;
45 : char **controls;
46 : unsigned int num_partitions;
47 : struct ldb_dn **partitions;
48 : bool block_anonymous;
49 : struct tevent_context *saved_ev;
50 : struct tevent_context *private_ev;
51 : };
52 :
53 : struct rootdse_context {
54 : struct ldb_module *module;
55 : struct ldb_request *req;
56 : struct ldb_val netlogon;
57 : };
58 :
59 : /*
60 : return 1 if a specific attribute has been requested
61 : */
62 7158248 : static int do_attribute(const char * const *attrs, const char *name)
63 : {
64 7156675 : return attrs == NULL ||
65 14066285 : ldb_attr_in_list(attrs, name) ||
66 6838507 : ldb_attr_in_list(attrs, "*");
67 : }
68 :
69 4006341 : static int do_attribute_explicit(const char * const *attrs, const char *name)
70 : {
71 4006341 : return attrs != NULL && ldb_attr_in_list(attrs, name);
72 : }
73 :
74 :
75 : /*
76 : expand a DN attribute to include extended DN information if requested
77 : */
78 77 : static int expand_dn_in_message(struct ldb_module *module, struct ldb_message *msg,
79 : const char *attrname, struct ldb_control *edn_control,
80 : struct ldb_request *req)
81 : {
82 : struct ldb_dn *dn, *dn2;
83 : struct ldb_val *v;
84 : int ret;
85 : struct ldb_request *req2;
86 : char *dn_string;
87 77 : const char *no_attrs[] = { NULL };
88 : struct ldb_result *res;
89 : struct ldb_extended_dn_control *edn;
90 77 : TALLOC_CTX *tmp_ctx = talloc_new(req);
91 : struct ldb_context *ldb;
92 77 : int edn_type = 0;
93 : unsigned int i;
94 : struct ldb_message_element *el;
95 :
96 77 : ldb = ldb_module_get_ctx(module);
97 :
98 77 : edn = talloc_get_type(edn_control->data, struct ldb_extended_dn_control);
99 77 : if (edn) {
100 77 : edn_type = edn->type;
101 : }
102 :
103 77 : el = ldb_msg_find_element(msg, attrname);
104 77 : if (!el || el->num_values == 0) {
105 11 : return LDB_SUCCESS;
106 : }
107 :
108 176 : for (i = 0; i < el->num_values; i++) {
109 110 : v = &el->values[i];
110 110 : if (v == NULL) {
111 0 : talloc_free(tmp_ctx);
112 0 : return LDB_SUCCESS;
113 : }
114 :
115 110 : dn_string = talloc_strndup(tmp_ctx, (const char *)v->data, v->length);
116 110 : if (dn_string == NULL) {
117 0 : talloc_free(tmp_ctx);
118 0 : return ldb_operr(ldb);
119 : }
120 :
121 110 : res = talloc_zero(tmp_ctx, struct ldb_result);
122 110 : if (res == NULL) {
123 0 : talloc_free(tmp_ctx);
124 0 : return ldb_operr(ldb);
125 : }
126 :
127 110 : dn = ldb_dn_new(tmp_ctx, ldb, dn_string);
128 110 : if (dn == NULL) {
129 0 : talloc_free(tmp_ctx);
130 0 : return ldb_operr(ldb);
131 : }
132 :
133 110 : ret = ldb_build_search_req(&req2, ldb, tmp_ctx,
134 : dn,
135 : LDB_SCOPE_BASE,
136 : NULL,
137 : no_attrs,
138 : NULL,
139 : res, ldb_search_default_callback,
140 : req);
141 110 : LDB_REQ_SET_LOCATION(req2);
142 110 : if (ret != LDB_SUCCESS) {
143 0 : talloc_free(tmp_ctx);
144 0 : return ret;
145 : }
146 :
147 110 : ret = dsdb_request_add_controls(req2, DSDB_FLAG_AS_SYSTEM |
148 : DSDB_SEARCH_SHOW_EXTENDED_DN);
149 110 : if (ret != LDB_SUCCESS) {
150 0 : talloc_free(tmp_ctx);
151 0 : return ldb_error(ldb, ret, "Failed to add control");
152 : }
153 :
154 110 : ret = ldb_next_request(module, req2);
155 110 : if (ret == LDB_SUCCESS) {
156 110 : ret = ldb_wait(req2->handle, LDB_WAIT_ALL);
157 : }
158 :
159 110 : if (ret != LDB_SUCCESS) {
160 0 : talloc_free(tmp_ctx);
161 0 : return ret;
162 : }
163 :
164 110 : if (!res || res->count != 1) {
165 0 : talloc_free(tmp_ctx);
166 0 : return ldb_operr(ldb);
167 : }
168 :
169 110 : dn2 = res->msgs[0]->dn;
170 :
171 110 : v->data = (uint8_t *)ldb_dn_get_extended_linearized(msg->elements, dn2, edn_type);
172 110 : if (v->data == NULL) {
173 0 : talloc_free(tmp_ctx);
174 0 : return ldb_operr(ldb);
175 : }
176 110 : v->length = strlen((char *)v->data);
177 : }
178 :
179 66 : talloc_free(tmp_ctx);
180 :
181 66 : return LDB_SUCCESS;
182 : }
183 :
184 : /*
185 : see if we are master for a FSMO role
186 : */
187 0 : static int dsdb_module_we_are_master(struct ldb_module *module, struct ldb_dn *dn, bool *master,
188 : struct ldb_request *parent)
189 : {
190 0 : const char *attrs[] = { "fSMORoleOwner", NULL };
191 0 : TALLOC_CTX *tmp_ctx = talloc_new(parent);
192 : struct ldb_result *res;
193 : int ret;
194 : struct ldb_dn *owner_dn;
195 :
196 0 : ret = dsdb_module_search_dn(module, tmp_ctx, &res,
197 : dn, attrs,
198 : DSDB_FLAG_NEXT_MODULE |
199 : DSDB_FLAG_AS_SYSTEM |
200 : DSDB_SEARCH_SHOW_EXTENDED_DN,
201 : parent);
202 0 : if (ret != LDB_SUCCESS) {
203 0 : talloc_free(tmp_ctx);
204 0 : return ret;
205 : }
206 :
207 0 : owner_dn = ldb_msg_find_attr_as_dn(ldb_module_get_ctx(module),
208 0 : tmp_ctx, res->msgs[0], "fSMORoleOwner");
209 0 : if (!owner_dn) {
210 0 : *master = false;
211 0 : talloc_free(tmp_ctx);
212 0 : return LDB_SUCCESS;
213 : }
214 :
215 0 : ret = samdb_dn_is_our_ntdsa(ldb_module_get_ctx(module), dn, master);
216 0 : if (ret != LDB_SUCCESS) {
217 0 : ldb_asprintf_errstring(ldb_module_get_ctx(module), "Failed to confirm if our ntdsDsa is %s: %s",
218 : ldb_dn_get_linearized(owner_dn), ldb_errstring(ldb_module_get_ctx(module)));
219 0 : talloc_free(tmp_ctx);
220 0 : return ret;
221 : }
222 :
223 0 : talloc_free(tmp_ctx);
224 0 : return LDB_SUCCESS;
225 : }
226 :
227 : /*
228 : add dynamically generated attributes to rootDSE result
229 : */
230 576558 : static int rootdse_add_dynamic(struct rootdse_context *ac, struct ldb_message *msg)
231 : {
232 : struct ldb_context *ldb;
233 576558 : struct rootdse_private_data *priv = talloc_get_type(ldb_module_get_private(ac->module), struct rootdse_private_data);
234 576558 : const char * const *attrs = ac->req->op.search.attrs;
235 576558 : const char **server_sasl = NULL;
236 : const struct dsdb_schema *schema;
237 : int *val;
238 : struct ldb_control *edn_control;
239 576558 : const char *dn_attrs[] = {
240 : "configurationNamingContext",
241 : "defaultNamingContext",
242 : "rootDomainNamingContext",
243 : "schemaNamingContext",
244 : "serverName",
245 : "validFSMOs",
246 : "namingContexts",
247 : NULL
248 : };
249 576558 : const char *guid_attrs[] = {
250 : "dsServiceName",
251 : NULL
252 : };
253 : unsigned int i;
254 :
255 576558 : ldb = ldb_module_get_ctx(ac->module);
256 576558 : schema = dsdb_get_schema(ldb, NULL);
257 :
258 576558 : msg->dn = ldb_dn_new(msg, ldb, NULL);
259 :
260 : /* don't return the distinguishedName, cn and name attributes */
261 576558 : ldb_msg_remove_attr(msg, "distinguishedName");
262 576558 : ldb_msg_remove_attr(msg, "cn");
263 576558 : ldb_msg_remove_attr(msg, "name");
264 :
265 576558 : if (do_attribute(attrs, "serverName")) {
266 1600 : if (ldb_msg_add_linearized_dn(msg, "serverName",
267 : samdb_server_dn(ldb, msg)) != LDB_SUCCESS) {
268 0 : goto failed;
269 : }
270 : }
271 :
272 576558 : if (do_attribute(attrs, "dnsHostName")) {
273 : struct ldb_result *res;
274 : int ret;
275 1762 : const char *dns_attrs[] = { "dNSHostName", NULL };
276 1762 : ret = dsdb_module_search_dn(ac->module, msg, &res, samdb_server_dn(ldb, msg),
277 : dns_attrs,
278 : DSDB_FLAG_NEXT_MODULE |
279 : DSDB_FLAG_AS_SYSTEM,
280 : ac->req);
281 1762 : if (ret == LDB_SUCCESS) {
282 1762 : const char *hostname = ldb_msg_find_attr_as_string(res->msgs[0], "dNSHostName", NULL);
283 1762 : if (hostname != NULL) {
284 1762 : if (ldb_msg_add_string(msg, "dnsHostName", hostname)) {
285 0 : goto failed;
286 : }
287 : }
288 : }
289 : }
290 :
291 576558 : if (do_attribute(attrs, "ldapServiceName")) {
292 818 : struct loadparm_context *lp_ctx
293 837 : = talloc_get_type(ldb_get_opaque(ldb, "loadparm"),
294 : struct loadparm_context);
295 : char *ldap_service_name, *hostname;
296 :
297 837 : hostname = strlower_talloc(msg, lpcfg_netbios_name(lp_ctx));
298 837 : if (hostname == NULL) {
299 0 : goto failed;
300 : }
301 :
302 837 : ldap_service_name = talloc_asprintf(msg, "%s:%s$@%s",
303 : samdb_forest_name(ldb, msg),
304 : hostname, lpcfg_realm(lp_ctx));
305 837 : if (ldap_service_name == NULL) {
306 0 : goto failed;
307 : }
308 :
309 837 : if (ldb_msg_add_string(msg, "ldapServiceName",
310 : ldap_service_name) != LDB_SUCCESS) {
311 0 : goto failed;
312 : }
313 : }
314 :
315 576558 : if (do_attribute(attrs, "currentTime")) {
316 1034 : char *timestr = ldb_timestring(msg, time(NULL));
317 :
318 1034 : if (timestr == NULL) {
319 0 : goto failed;
320 : }
321 :
322 1034 : if (ldb_msg_add_steal_string(
323 : msg, "currentTime", timestr) != LDB_SUCCESS) {
324 0 : goto failed;
325 : }
326 : }
327 :
328 576558 : if (priv && do_attribute(attrs, "supportedControl")) {
329 62288 : for (i = 0; i < priv->num_controls; i++) {
330 59671 : char *control = talloc_strdup(msg, priv->controls[i]);
331 59671 : if (!control) {
332 0 : goto failed;
333 : }
334 59671 : if (ldb_msg_add_steal_string(msg, "supportedControl",
335 : control) != LDB_SUCCESS) {
336 0 : goto failed;
337 : }
338 : }
339 : }
340 :
341 576558 : if (priv && do_attribute(attrs, "namingContexts")) {
342 11412 : for (i = 0; i < priv->num_partitions; i++) {
343 9214 : struct ldb_dn *dn = priv->partitions[i];
344 9214 : if (ldb_msg_add_steal_string(msg, "namingContexts",
345 : ldb_dn_alloc_linearized(msg, dn)) != LDB_SUCCESS) {
346 0 : goto failed;
347 : }
348 : }
349 : }
350 :
351 576558 : server_sasl = talloc_get_type(ldb_get_opaque(ldb, "supportedSASLMechanisms"),
352 : const char *);
353 576558 : if (server_sasl && do_attribute(attrs, "supportedSASLMechanisms")) {
354 80068 : for (i = 0; server_sasl && server_sasl[i]; i++) {
355 60051 : char *sasl_name = talloc_strdup(msg, server_sasl[i]);
356 60051 : if (!sasl_name) {
357 0 : goto failed;
358 : }
359 60051 : if (ldb_msg_add_steal_string(msg, "supportedSASLMechanisms",
360 : sasl_name) != LDB_SUCCESS) {
361 0 : goto failed;
362 : }
363 : }
364 : }
365 :
366 576558 : if (do_attribute(attrs, "highestCommittedUSN")) {
367 : uint64_t seq_num;
368 1352 : int ret = ldb_sequence_number(ldb, LDB_SEQ_HIGHEST_SEQ, &seq_num);
369 1352 : if (ret == LDB_SUCCESS) {
370 1352 : if (samdb_msg_add_uint64(ldb, msg, msg,
371 : "highestCommittedUSN",
372 : seq_num) != LDB_SUCCESS) {
373 0 : goto failed;
374 : }
375 : }
376 : }
377 :
378 576558 : if (schema && do_attribute_explicit(attrs, "dsSchemaAttrCount")) {
379 : struct dsdb_attribute *cur;
380 0 : unsigned int n = 0;
381 :
382 0 : for (cur = schema->attributes; cur; cur = cur->next) {
383 0 : n++;
384 : }
385 :
386 0 : if (samdb_msg_add_uint(ldb, msg, msg, "dsSchemaAttrCount",
387 : n) != LDB_SUCCESS) {
388 0 : goto failed;
389 : }
390 : }
391 :
392 576558 : if (schema && do_attribute_explicit(attrs, "dsSchemaClassCount")) {
393 : struct dsdb_class *cur;
394 0 : unsigned int n = 0;
395 :
396 0 : for (cur = schema->classes; cur; cur = cur->next) {
397 0 : n++;
398 : }
399 :
400 0 : if (samdb_msg_add_uint(ldb, msg, msg, "dsSchemaClassCount",
401 : n) != LDB_SUCCESS) {
402 0 : goto failed;
403 : }
404 : }
405 :
406 576558 : if (schema && do_attribute_explicit(attrs, "dsSchemaPrefixCount")) {
407 0 : if (samdb_msg_add_uint(ldb, msg, msg, "dsSchemaPrefixCount",
408 0 : schema->prefixmap->length) != LDB_SUCCESS) {
409 0 : goto failed;
410 : }
411 : }
412 :
413 576558 : if (do_attribute_explicit(attrs, "validFSMOs")) {
414 : struct ldb_dn *dns[3];
415 :
416 0 : dns[0] = ldb_get_schema_basedn(ldb);
417 0 : dns[1] = samdb_partitions_dn(ldb, msg);
418 0 : dns[2] = ldb_get_default_basedn(ldb);
419 :
420 0 : for (i=0; i<3; i++) {
421 : bool master;
422 0 : int ret = dsdb_module_we_are_master(ac->module, dns[i], &master, ac->req);
423 0 : if (ret != LDB_SUCCESS) {
424 0 : goto failed;
425 : }
426 0 : if (master && ldb_msg_add_fmt(msg, "validFSMOs", "%s",
427 : ldb_dn_get_linearized(dns[i])) != LDB_SUCCESS) {
428 0 : goto failed;
429 : }
430 : }
431 : }
432 :
433 576558 : if (do_attribute_explicit(attrs, "vendorVersion")) {
434 0 : if (ldb_msg_add_fmt(msg, "vendorVersion",
435 : "%s", SAMBA_VERSION_STRING) != LDB_SUCCESS) {
436 0 : goto failed;
437 : }
438 : }
439 :
440 576558 : if (do_attribute(attrs, "domainFunctionality")) {
441 910 : if (samdb_msg_add_int(ldb, msg, msg, "domainFunctionality",
442 : dsdb_functional_level(ldb)) != LDB_SUCCESS) {
443 0 : goto failed;
444 : }
445 : }
446 :
447 576558 : if (do_attribute(attrs, "forestFunctionality")) {
448 864 : if (samdb_msg_add_int(ldb, msg, msg, "forestFunctionality",
449 : dsdb_forest_functional_level(ldb)) != LDB_SUCCESS) {
450 0 : goto failed;
451 : }
452 : }
453 :
454 576558 : if (do_attribute(attrs, "domainControllerFunctionality")
455 1287 : && (val = talloc_get_type(ldb_get_opaque(ldb, "domainControllerFunctionality"), int))) {
456 1278 : if (samdb_msg_add_int(ldb, msg, msg,
457 : "domainControllerFunctionality",
458 : *val) != LDB_SUCCESS) {
459 0 : goto failed;
460 : }
461 : }
462 :
463 576558 : if (do_attribute(attrs, "isGlobalCatalogReady")) {
464 : /* MS-ADTS 3.1.1.3.2.10
465 : Note, we should only return true here is we have
466 : completed at least one synchronisation. As both
467 : provision and vampire do a full sync, this means we
468 : can return true is the gc bit is set in the NTDSDSA
469 : options */
470 836 : if (ldb_msg_add_fmt(msg, "isGlobalCatalogReady",
471 836 : "%s", samdb_is_gc(ldb)?"TRUE":"FALSE") != LDB_SUCCESS) {
472 0 : goto failed;
473 : }
474 : }
475 :
476 576558 : if (do_attribute_explicit(attrs, "tokenGroups")) {
477 : /* Obtain the user's session_info */
478 143 : struct auth_session_info *session_info
479 31 : = (struct auth_session_info *)ldb_get_opaque(
480 : ldb,
481 : DSDB_SESSION_INFO);
482 174 : if (session_info && session_info->security_token) {
483 : /* The list of groups this user is in */
484 1799 : for (i = 0; i < session_info->security_token->num_sids; i++) {
485 1625 : if (samdb_msg_add_dom_sid(ldb, msg, msg,
486 : "tokenGroups",
487 1625 : &session_info->security_token->sids[i]) != LDB_SUCCESS) {
488 0 : goto failed;
489 : }
490 : }
491 : }
492 : }
493 :
494 576558 : if (ac->netlogon.length > 0) {
495 1557 : if (ldb_msg_add_steal_value(msg, "netlogon", &ac->netlogon) != LDB_SUCCESS) {
496 0 : goto failed;
497 : }
498 : }
499 :
500 : /* TODO: lots more dynamic attributes should be added here */
501 :
502 576558 : edn_control = ldb_request_get_control(ac->req, LDB_CONTROL_EXTENDED_DN_OID);
503 :
504 : /* convert any GUID attributes to be in the right form */
505 1153116 : for (i=0; guid_attrs[i]; i++) {
506 : struct ldb_result *res;
507 : struct ldb_message_element *el;
508 : struct ldb_dn *attr_dn;
509 576558 : const char *no_attrs[] = { NULL };
510 : int ret;
511 :
512 790233 : if (!do_attribute(attrs, guid_attrs[i])) continue;
513 :
514 293658 : attr_dn = ldb_msg_find_attr_as_dn(ldb, ac->req, msg, guid_attrs[i]);
515 293658 : if (attr_dn == NULL) {
516 0 : continue;
517 : }
518 :
519 293658 : ret = dsdb_module_search_dn(ac->module, ac->req, &res,
520 : attr_dn, no_attrs,
521 : DSDB_FLAG_NEXT_MODULE |
522 : DSDB_FLAG_AS_SYSTEM |
523 : DSDB_SEARCH_SHOW_EXTENDED_DN,
524 : ac->req);
525 293658 : if (ret != LDB_SUCCESS) {
526 0 : DBG_WARNING("Failed to convert GUID into full DN in rootDSE for %s: %s: %s\n",
527 : guid_attrs[i],
528 : ldb_dn_get_extended_linearized(ac, attr_dn, 1),
529 : ldb_errstring(ldb));
530 : /*
531 : * Provide a meaninful error string but not
532 : * confidential DB contents possibly in the
533 : * original string
534 : */
535 0 : ldb_asprintf_errstring(ldb,
536 : "Failed to find full DN for %s: %s",
537 : guid_attrs[i],
538 : ldb_dn_get_extended_linearized(ac, attr_dn, 1));
539 : /* Overstamp the error code, it would confuse the caller */
540 0 : return LDB_ERR_OPERATIONS_ERROR;
541 : }
542 :
543 293658 : el = ldb_msg_find_element(msg, guid_attrs[i]);
544 293658 : if (el == NULL) {
545 0 : return ldb_operr(ldb);
546 : }
547 :
548 293658 : talloc_steal(el->values, res->msgs[0]->dn);
549 293658 : if (edn_control) {
550 : struct ldb_extended_dn_control *edn;
551 11 : int edn_type = 0;
552 11 : edn = talloc_get_type(edn_control->data, struct ldb_extended_dn_control);
553 11 : if (edn != NULL) {
554 11 : edn_type = edn->type;
555 : }
556 11 : el->values[0].data = (uint8_t *)ldb_dn_get_extended_linearized(el->values,
557 11 : res->msgs[0]->dn,
558 : edn_type);
559 : } else {
560 293647 : el->values[0].data = (uint8_t *)talloc_strdup(el->values,
561 293647 : ldb_dn_get_linearized(res->msgs[0]->dn));
562 : }
563 293658 : if (el->values[0].data == NULL) {
564 0 : return ldb_oom(ldb);
565 : }
566 293658 : el->values[0].length = strlen((const char *)el->values[0].data);
567 : }
568 :
569 : /* if the client sent us the EXTENDED_DN control then we need
570 : to expand the DNs to have GUID and SID. W2K8 join relies on
571 : this */
572 576558 : if (edn_control) {
573 : int ret;
574 88 : for (i=0; dn_attrs[i]; i++) {
575 77 : if (!do_attribute(attrs, dn_attrs[i])) continue;
576 77 : ret = expand_dn_in_message(ac->module, msg, dn_attrs[i],
577 : edn_control, ac->req);
578 77 : if (ret != LDB_SUCCESS) {
579 0 : DEBUG(0,(__location__ ": Failed to expand DN in rootDSE for %s\n",
580 : dn_attrs[i]));
581 0 : goto failed;
582 : }
583 : }
584 : }
585 :
586 576558 : return LDB_SUCCESS;
587 :
588 0 : failed:
589 0 : return ldb_operr(ldb);
590 : }
591 :
592 : /*
593 : handle search requests
594 : */
595 :
596 576570 : static struct rootdse_context *rootdse_init_context(struct ldb_module *module,
597 : struct ldb_request *req)
598 : {
599 : struct ldb_context *ldb;
600 : struct rootdse_context *ac;
601 :
602 576570 : ldb = ldb_module_get_ctx(module);
603 :
604 576570 : ac = talloc_zero(req, struct rootdse_context);
605 576570 : if (ac == NULL) {
606 0 : ldb_set_errstring(ldb, "Out of Memory");
607 0 : return NULL;
608 : }
609 :
610 576570 : ac->module = module;
611 576570 : ac->req = req;
612 :
613 576570 : return ac;
614 : }
615 :
616 1153116 : static int rootdse_callback(struct ldb_request *req, struct ldb_reply *ares)
617 : {
618 : struct rootdse_context *ac;
619 : int ret;
620 :
621 1153116 : ac = talloc_get_type(req->context, struct rootdse_context);
622 :
623 1153116 : if (!ares) {
624 0 : return ldb_module_done(ac->req, NULL, NULL,
625 : LDB_ERR_OPERATIONS_ERROR);
626 : }
627 1153116 : if (ares->error != LDB_SUCCESS) {
628 0 : return ldb_module_done(ac->req, ares->controls,
629 : ares->response, ares->error);
630 : }
631 :
632 1153116 : switch (ares->type) {
633 576558 : case LDB_REPLY_ENTRY:
634 : /* for each record returned post-process to add any dynamic
635 : attributes that have been asked for */
636 576558 : ret = rootdse_add_dynamic(ac, ares->message);
637 576558 : if (ret != LDB_SUCCESS) {
638 0 : talloc_free(ares);
639 0 : return ldb_module_done(ac->req, NULL, NULL, ret);
640 : }
641 :
642 576558 : return ldb_module_send_entry(ac->req, ares->message, ares->controls);
643 :
644 0 : case LDB_REPLY_REFERRAL:
645 : /* should we allow the backend to return referrals in this case
646 : * ?? */
647 0 : break;
648 :
649 576558 : case LDB_REPLY_DONE:
650 576558 : return ldb_module_done(ac->req, ares->controls,
651 : ares->response, ares->error);
652 : }
653 :
654 0 : talloc_free(ares);
655 0 : return LDB_SUCCESS;
656 : }
657 :
658 : /*
659 : filter from controls from clients in several ways
660 :
661 : 1) mark our registered controls as non-critical in the request
662 :
663 : This is needed as clients may mark controls as critical even if
664 : they are not needed at all in a request. For example, the centrify
665 : client sets the SD_FLAGS control as critical on ldap modify
666 : requests which are setting the dNSHostName attribute on the
667 : machine account. That request doesn't need SD_FLAGS at all, but
668 : centrify adds it on all ldap requests.
669 :
670 : 2) if this request is untrusted then remove any non-registered
671 : controls that are non-critical
672 :
673 : This is used on ldap:// connections to prevent remote users from
674 : setting an internal control that may be dangerous
675 :
676 : 3) if this request is untrusted then fail any request that includes
677 : a critical non-registered control
678 : */
679 13034148 : static int rootdse_filter_controls(struct ldb_module *module, struct ldb_request *req)
680 : {
681 : unsigned int i, j;
682 13034148 : struct rootdse_private_data *priv = talloc_get_type(ldb_module_get_private(module), struct rootdse_private_data);
683 : bool is_untrusted;
684 :
685 13034148 : if (!req->controls) {
686 3660890 : return LDB_SUCCESS;
687 : }
688 :
689 9373258 : is_untrusted = ldb_req_is_untrusted(req);
690 :
691 34991661 : for (i=0; req->controls[i]; i++) {
692 25618403 : bool is_registered = false;
693 25618403 : bool is_critical = (req->controls[i]->critical != 0);
694 :
695 25618403 : if (req->controls[i]->oid == NULL) {
696 0 : continue;
697 : }
698 :
699 25618403 : if (is_untrusted || is_critical) {
700 202983141 : for (j=0; j<priv->num_controls; j++) {
701 202454292 : if (strcasecmp(priv->controls[j], req->controls[i]->oid) == 0) {
702 11669445 : is_registered = true;
703 11669445 : break;
704 : }
705 : }
706 : }
707 :
708 25618403 : if (is_untrusted && !is_registered) {
709 446518 : if (!is_critical) {
710 : /* remove it by marking the oid NULL */
711 446518 : req->controls[i]->oid = NULL;
712 446518 : req->controls[i]->data = NULL;
713 446518 : req->controls[i]->critical = 0;
714 446518 : continue;
715 : }
716 : /* its a critical unregistered control - give
717 : an error */
718 0 : ldb_asprintf_errstring(ldb_module_get_ctx(module),
719 : "Attempt to use critical non-registered control '%s'",
720 0 : req->controls[i]->oid);
721 0 : return LDB_ERR_UNSUPPORTED_CRITICAL_EXTENSION;
722 : }
723 :
724 25171885 : if (!is_critical) {
725 13454775 : continue;
726 : }
727 :
728 : /*
729 : * If the control is DIRSYNC, SORT or VLV then we keep the
730 : * critical flag as the modules will need to act upon it.
731 : *
732 : * These modules have to unset the critical flag after the
733 : * request has been seen by the correct module.
734 : */
735 22129836 : if (is_registered &&
736 11634779 : strcmp(req->controls[i]->oid,
737 11634357 : LDB_CONTROL_DIRSYNC_OID) != 0 &&
738 11634357 : strcmp(req->controls[i]->oid,
739 11581325 : LDB_CONTROL_VLV_REQ_OID) != 0 &&
740 11581325 : strcmp(req->controls[i]->oid,
741 : LDB_CONTROL_SERVER_SORT_OID) != 0) {
742 11527598 : req->controls[i]->critical = 0;
743 : }
744 : }
745 :
746 9373258 : return LDB_SUCCESS;
747 : }
748 :
749 : /* Ensure that anonymous users are not allowed to make anything other than rootDSE search operations */
750 :
751 13034214 : static int rootdse_filter_operations(struct ldb_module *module, struct ldb_request *req)
752 : {
753 : struct auth_session_info *session_info;
754 13034214 : struct rootdse_private_data *priv = talloc_get_type(ldb_module_get_private(module), struct rootdse_private_data);
755 13034214 : bool is_untrusted = ldb_req_is_untrusted(req);
756 13034214 : bool is_anonymous = true;
757 13034214 : if (is_untrusted == false) {
758 12164842 : return LDB_SUCCESS;
759 : }
760 :
761 869372 : session_info = (struct auth_session_info *)ldb_get_opaque(
762 : ldb_module_get_ctx(module),
763 : DSDB_SESSION_INFO);
764 869372 : if (session_info) {
765 869372 : is_anonymous = security_token_is_anonymous(session_info->security_token);
766 : }
767 :
768 869372 : if (is_anonymous == false || (priv && priv->block_anonymous == false)) {
769 849559 : return LDB_SUCCESS;
770 : }
771 :
772 19813 : if (req->operation == LDB_SEARCH) {
773 19786 : if (req->op.search.scope == LDB_SCOPE_BASE && ldb_dn_is_null(req->op.search.base)) {
774 19747 : return LDB_SUCCESS;
775 : }
776 : }
777 66 : ldb_set_errstring(ldb_module_get_ctx(module), "Operation unavailable without authentication");
778 66 : return LDB_ERR_OPERATIONS_ERROR;
779 : }
780 :
781 1569 : static int rootdse_handle_netlogon(struct rootdse_context *ac)
782 : {
783 : struct ldb_context *ldb;
784 : struct ldb_parse_tree *tree;
785 : struct loadparm_context *lp_ctx;
786 : struct tsocket_address *src_addr;
787 1569 : TALLOC_CTX *tmp_ctx = talloc_new(ac->req);
788 : const char *domain, *host, *user, *domain_guid;
789 1569 : char *src_addr_s = NULL;
790 : struct dom_sid *domain_sid;
791 1569 : int acct_control = -1;
792 1569 : int version = -1;
793 : NTSTATUS status;
794 : struct netlogon_samlogon_response netlogon;
795 1569 : int ret = LDB_ERR_OPERATIONS_ERROR;
796 :
797 1569 : ldb = ldb_module_get_ctx(ac->module);
798 1569 : tree = ac->req->op.search.tree;
799 1569 : lp_ctx = talloc_get_type(ldb_get_opaque(ldb, "loadparm"),
800 : struct loadparm_context);
801 1569 : src_addr = talloc_get_type(ldb_get_opaque(ldb, "remoteAddress"),
802 : struct tsocket_address);
803 1569 : if (src_addr) {
804 1569 : src_addr_s = tsocket_address_inet_addr_string(src_addr,
805 : tmp_ctx);
806 : }
807 :
808 1569 : status = parse_netlogon_request(tree, lp_ctx, tmp_ctx,
809 : &domain, &host, &user, &domain_guid,
810 : &domain_sid, &acct_control, &version);
811 1569 : if (!NT_STATUS_IS_OK(status)) {
812 6 : goto failed;
813 : }
814 :
815 1563 : status = fill_netlogon_samlogon_response(ldb, tmp_ctx,
816 : domain, NULL, domain_sid,
817 : domain_guid,
818 : user, acct_control,
819 : src_addr_s,
820 : version, lp_ctx,
821 : &netlogon, false);
822 1563 : if (!NT_STATUS_IS_OK(status)) {
823 6 : goto failed;
824 : }
825 :
826 1557 : status = push_netlogon_samlogon_response(&ac->netlogon, ac, &netlogon);
827 1557 : if (!NT_STATUS_IS_OK(status)) {
828 0 : goto failed;
829 : }
830 :
831 1557 : ret = LDB_SUCCESS;
832 1569 : failed:
833 1569 : talloc_free(tmp_ctx);
834 1569 : return ret;
835 : }
836 :
837 11169403 : static int rootdse_search(struct ldb_module *module, struct ldb_request *req)
838 : {
839 : struct ldb_context *ldb;
840 : struct rootdse_context *ac;
841 : struct ldb_request *down_req;
842 : int ret;
843 :
844 11169403 : ret = rootdse_filter_operations(module, req);
845 11169403 : if (ret != LDB_SUCCESS) {
846 39 : return ret;
847 : }
848 :
849 11169364 : ret = rootdse_filter_controls(module, req);
850 11169364 : if (ret != LDB_SUCCESS) {
851 0 : return ret;
852 : }
853 :
854 11169364 : ldb = ldb_module_get_ctx(module);
855 :
856 : /* see if its for the rootDSE - only a base search on the "" DN qualifies */
857 11169364 : if (!(req->op.search.scope == LDB_SCOPE_BASE && ldb_dn_is_null(req->op.search.base))) {
858 : /* Otherwise, pass down to the rest of the stack */
859 10592794 : return ldb_next_request(module, req);
860 : }
861 :
862 576570 : ac = rootdse_init_context(module, req);
863 576570 : if (ac == NULL) {
864 0 : return ldb_operr(ldb);
865 : }
866 :
867 576570 : if (do_attribute_explicit(req->op.search.attrs, "netlogon")) {
868 1569 : ret = rootdse_handle_netlogon(ac);
869 : /* We have to return an empty result, so don't forward `ret' */
870 1569 : if (ret != LDB_SUCCESS) {
871 12 : return ldb_module_done(ac->req, NULL, NULL, LDB_SUCCESS);
872 : }
873 : }
874 :
875 : /* in our db we store the rootDSE with a DN of @ROOTDSE */
876 576558 : ret = ldb_build_search_req(&down_req, ldb, ac,
877 : ldb_dn_new(ac, ldb, "@ROOTDSE"),
878 : LDB_SCOPE_BASE,
879 : NULL,
880 : req->op.search.attrs,
881 : NULL,/* for now skip the controls from the client */
882 : ac, rootdse_callback,
883 : req);
884 576558 : LDB_REQ_SET_LOCATION(down_req);
885 576558 : if (ret != LDB_SUCCESS) {
886 0 : return ret;
887 : }
888 :
889 576558 : return ldb_next_request(module, down_req);
890 : }
891 :
892 3075647 : static struct rootdse_private_data *rootdse_get_private_data(struct ldb_module *module)
893 : {
894 3075647 : void *priv = ldb_module_get_private(module);
895 3075647 : struct rootdse_private_data *data = NULL;
896 2318348 : struct ldb_context *ldb
897 757299 : = ldb_module_get_ctx(module);
898 :
899 3075647 : if (priv != NULL) {
900 2967218 : data = talloc_get_type_abort(priv,
901 : struct rootdse_private_data);
902 : }
903 :
904 3075647 : if (data != NULL) {
905 2967218 : return data;
906 : }
907 :
908 108429 : data = talloc_zero(module, struct rootdse_private_data);
909 108429 : if (data == NULL) {
910 0 : return NULL;
911 : }
912 :
913 108429 : data->num_controls = 0;
914 108429 : data->controls = NULL;
915 108429 : data->num_partitions = 0;
916 108429 : data->partitions = NULL;
917 108429 : data->block_anonymous = true;
918 :
919 108429 : ldb_module_set_private(module, data);
920 :
921 108429 : ldb_set_default_dns(ldb);
922 :
923 108429 : return data;
924 : }
925 :
926 :
927 2456142 : static int rootdse_register_control(struct ldb_module *module, struct ldb_request *req)
928 : {
929 1847627 : struct rootdse_private_data *priv =
930 608515 : rootdse_get_private_data(module);
931 : char **list;
932 :
933 2456142 : if (priv == NULL) {
934 0 : return ldb_module_oom(module);
935 : }
936 :
937 2456142 : list = talloc_realloc(priv, priv->controls, char *, priv->num_controls + 1);
938 2456142 : if (!list) {
939 0 : return ldb_oom(ldb_module_get_ctx(module));
940 : }
941 :
942 2456142 : list[priv->num_controls] = talloc_strdup(list, req->op.reg_control.oid);
943 2456142 : if (!list[priv->num_controls]) {
944 0 : return ldb_oom(ldb_module_get_ctx(module));
945 : }
946 :
947 2456142 : priv->num_controls += 1;
948 2456142 : priv->controls = list;
949 :
950 2456142 : return ldb_module_done(req, NULL, NULL, LDB_SUCCESS);
951 : }
952 :
953 511076 : static int rootdse_register_partition(struct ldb_module *module, struct ldb_request *req)
954 : {
955 389335 : struct rootdse_private_data *priv =
956 121741 : rootdse_get_private_data(module);
957 : struct ldb_dn **list;
958 :
959 511076 : if (priv == NULL) {
960 0 : return ldb_module_oom(module);
961 : }
962 :
963 511076 : list = talloc_realloc(priv, priv->partitions, struct ldb_dn *, priv->num_partitions + 1);
964 511076 : if (!list) {
965 0 : return ldb_oom(ldb_module_get_ctx(module));
966 : }
967 :
968 511076 : list[priv->num_partitions] = ldb_dn_copy(list, req->op.reg_partition.dn);
969 511076 : if (!list[priv->num_partitions]) {
970 0 : return ldb_operr(ldb_module_get_ctx(module));
971 : }
972 :
973 511076 : priv->num_partitions += 1;
974 511076 : priv->partitions = list;
975 :
976 511076 : return ldb_module_done(req, NULL, NULL, LDB_SUCCESS);
977 : }
978 :
979 :
980 2967218 : static int rootdse_request(struct ldb_module *module, struct ldb_request *req)
981 : {
982 2967218 : switch (req->operation) {
983 :
984 2456142 : case LDB_REQ_REGISTER_CONTROL:
985 2456142 : return rootdse_register_control(module, req);
986 511076 : case LDB_REQ_REGISTER_PARTITION:
987 511076 : return rootdse_register_partition(module, req);
988 :
989 0 : default:
990 0 : break;
991 : }
992 0 : return ldb_next_request(module, req);
993 : }
994 :
995 108429 : static int rootdse_init(struct ldb_module *module)
996 : {
997 : int ret;
998 : struct ldb_result *res;
999 108429 : const char *attrs[] = { "msDS-Behavior-Version", NULL };
1000 108429 : const char *ds_attrs[] = { "dsServiceName", NULL };
1001 : TALLOC_CTX *mem_ctx;
1002 :
1003 81386 : struct ldb_context *ldb
1004 27043 : = ldb_module_get_ctx(module);
1005 :
1006 81386 : struct rootdse_private_data *data
1007 27043 : = rootdse_get_private_data(module);
1008 :
1009 108429 : if (data == NULL) {
1010 0 : return ldb_module_oom(module);
1011 : }
1012 :
1013 108429 : ret = ldb_next_init(module);
1014 :
1015 108429 : if (ret != LDB_SUCCESS) {
1016 0 : return ret;
1017 : }
1018 :
1019 108429 : mem_ctx = talloc_new(data);
1020 108429 : if (!mem_ctx) {
1021 0 : return ldb_oom(ldb);
1022 : }
1023 :
1024 : /* Now that the partitions are set up, do a search for:
1025 : - domainControllerFunctionality
1026 : - domainFunctionality
1027 : - forestFunctionality
1028 :
1029 : Then stuff these values into an opaque
1030 : */
1031 108429 : ret = dsdb_module_search(module, mem_ctx, &res,
1032 : ldb_get_default_basedn(ldb),
1033 : LDB_SCOPE_BASE, attrs,
1034 : DSDB_FLAG_NEXT_MODULE |
1035 : DSDB_FLAG_AS_SYSTEM,
1036 : NULL, NULL);
1037 108429 : if (ret == LDB_SUCCESS && res->count == 1) {
1038 81256 : int domain_behaviour_version
1039 108282 : = ldb_msg_find_attr_as_int(res->msgs[0],
1040 : "msDS-Behavior-Version", -1);
1041 108282 : if (domain_behaviour_version != -1) {
1042 108256 : int *val = talloc(ldb, int);
1043 108256 : if (!val) {
1044 0 : talloc_free(mem_ctx);
1045 0 : return ldb_oom(ldb);
1046 : }
1047 108256 : *val = domain_behaviour_version;
1048 108256 : ret = ldb_set_opaque(ldb, "domainFunctionality", val);
1049 108256 : if (ret != LDB_SUCCESS) {
1050 0 : talloc_free(mem_ctx);
1051 0 : return ret;
1052 : }
1053 : }
1054 : }
1055 :
1056 108429 : ret = dsdb_module_search(module, mem_ctx, &res,
1057 : samdb_partitions_dn(ldb, mem_ctx),
1058 : LDB_SCOPE_BASE, attrs,
1059 : DSDB_FLAG_NEXT_MODULE |
1060 : DSDB_FLAG_AS_SYSTEM,
1061 : NULL, NULL);
1062 108429 : if (ret == LDB_SUCCESS && res->count == 1) {
1063 81256 : int forest_behaviour_version
1064 108282 : = ldb_msg_find_attr_as_int(res->msgs[0],
1065 : "msDS-Behavior-Version", -1);
1066 108282 : if (forest_behaviour_version != -1) {
1067 108282 : int *val = talloc(ldb, int);
1068 108282 : if (!val) {
1069 0 : talloc_free(mem_ctx);
1070 0 : return ldb_oom(ldb);
1071 : }
1072 108282 : *val = forest_behaviour_version;
1073 108282 : ret = ldb_set_opaque(ldb, "forestFunctionality", val);
1074 108282 : if (ret != LDB_SUCCESS) {
1075 0 : talloc_free(mem_ctx);
1076 0 : return ret;
1077 : }
1078 : }
1079 : }
1080 :
1081 : /* For now, our own server's location in the DB is recorded in
1082 : * the @ROOTDSE record */
1083 108429 : ret = dsdb_module_search(module, mem_ctx, &res,
1084 : ldb_dn_new(mem_ctx, ldb, "@ROOTDSE"),
1085 : LDB_SCOPE_BASE, ds_attrs,
1086 : DSDB_FLAG_NEXT_MODULE |
1087 : DSDB_FLAG_AS_SYSTEM,
1088 : NULL, NULL);
1089 108429 : if (ret == LDB_SUCCESS && res->count == 1) {
1090 81386 : struct ldb_dn *ds_dn
1091 108429 : = ldb_msg_find_attr_as_dn(ldb, mem_ctx, res->msgs[0],
1092 : "dsServiceName");
1093 108429 : if (ds_dn) {
1094 108429 : ret = dsdb_module_search(module, mem_ctx, &res, ds_dn,
1095 : LDB_SCOPE_BASE, attrs,
1096 : DSDB_FLAG_NEXT_MODULE |
1097 : DSDB_FLAG_AS_SYSTEM,
1098 : NULL, NULL);
1099 108429 : if (ret == LDB_SUCCESS && res->count == 1) {
1100 81256 : int domain_controller_behaviour_version
1101 108282 : = ldb_msg_find_attr_as_int(res->msgs[0],
1102 : "msDS-Behavior-Version", -1);
1103 108282 : if (domain_controller_behaviour_version != -1) {
1104 108110 : int *val = talloc(ldb, int);
1105 108110 : if (!val) {
1106 0 : talloc_free(mem_ctx);
1107 0 : return ldb_oom(ldb);
1108 : }
1109 108110 : *val = domain_controller_behaviour_version;
1110 108110 : ret = ldb_set_opaque(ldb,
1111 : "domainControllerFunctionality", val);
1112 108110 : if (ret != LDB_SUCCESS) {
1113 0 : talloc_free(mem_ctx);
1114 0 : return ret;
1115 : }
1116 : }
1117 : }
1118 : }
1119 : }
1120 :
1121 108429 : data->block_anonymous = dsdb_block_anonymous_ops(module, NULL);
1122 :
1123 108429 : talloc_free(mem_ctx);
1124 :
1125 108429 : return LDB_SUCCESS;
1126 : }
1127 :
1128 : /*
1129 : * This function gets the string SCOPE_DN:OPTIONAL_FEATURE_GUID and parse it
1130 : * to a DN and a GUID object
1131 : */
1132 0 : static int get_optional_feature_dn_guid(struct ldb_request *req, struct ldb_context *ldb,
1133 : TALLOC_CTX *mem_ctx,
1134 : struct ldb_dn **op_feature_scope_dn,
1135 : struct GUID *op_feature_guid)
1136 : {
1137 0 : const struct ldb_message *msg = req->op.mod.message;
1138 : const char *ldb_val_str;
1139 : char *dn, *guid;
1140 0 : TALLOC_CTX *tmp_ctx = talloc_new(mem_ctx);
1141 : NTSTATUS status;
1142 :
1143 0 : ldb_val_str = ldb_msg_find_attr_as_string(msg, "enableOptionalFeature", NULL);
1144 0 : if (!ldb_val_str) {
1145 0 : ldb_set_errstring(ldb,
1146 : "rootdse: unable to find 'enableOptionalFeature'!");
1147 0 : return LDB_ERR_UNWILLING_TO_PERFORM;
1148 : }
1149 :
1150 0 : guid = strchr(ldb_val_str, ':');
1151 0 : if (!guid) {
1152 0 : ldb_set_errstring(ldb,
1153 : "rootdse: unable to find GUID in 'enableOptionalFeature'!");
1154 0 : return LDB_ERR_UNWILLING_TO_PERFORM;
1155 : }
1156 0 : status = GUID_from_string(guid+1, op_feature_guid);
1157 0 : if (!NT_STATUS_IS_OK(status)) {
1158 0 : ldb_set_errstring(ldb,
1159 : "rootdse: bad GUID in 'enableOptionalFeature'!");
1160 0 : return LDB_ERR_UNWILLING_TO_PERFORM;
1161 : }
1162 :
1163 0 : dn = talloc_strndup(tmp_ctx, ldb_val_str, guid-ldb_val_str);
1164 0 : if (!dn) {
1165 0 : ldb_set_errstring(ldb,
1166 : "rootdse: bad DN in 'enableOptionalFeature'!");
1167 0 : return LDB_ERR_UNWILLING_TO_PERFORM;
1168 : }
1169 :
1170 0 : *op_feature_scope_dn = ldb_dn_new(mem_ctx, ldb, dn);
1171 :
1172 0 : talloc_free(tmp_ctx);
1173 0 : return LDB_SUCCESS;
1174 : }
1175 :
1176 : /*
1177 : * This function gets the OPTIONAL_FEATURE_GUID and looks for the optional feature
1178 : * ldb_message object.
1179 : */
1180 0 : static int dsdb_find_optional_feature(struct ldb_module *module, struct ldb_context *ldb,
1181 : TALLOC_CTX *mem_ctx, struct GUID op_feature_guid, struct ldb_message **msg,
1182 : struct ldb_request *parent)
1183 : {
1184 : struct ldb_result *res;
1185 0 : TALLOC_CTX *tmp_ctx = talloc_new(mem_ctx);
1186 : int ret;
1187 :
1188 0 : ret = dsdb_module_search(module, tmp_ctx, &res, NULL, LDB_SCOPE_SUBTREE,
1189 : NULL,
1190 : DSDB_FLAG_NEXT_MODULE |
1191 : DSDB_FLAG_AS_SYSTEM |
1192 : DSDB_SEARCH_SEARCH_ALL_PARTITIONS,
1193 : parent,
1194 : "(&(objectClass=msDS-OptionalFeature)"
1195 : "(msDS-OptionalFeatureGUID=%s))",GUID_string(tmp_ctx, &op_feature_guid));
1196 :
1197 0 : if (ret != LDB_SUCCESS) {
1198 0 : talloc_free(tmp_ctx);
1199 0 : return ret;
1200 : }
1201 0 : if (res->count == 0) {
1202 0 : talloc_free(tmp_ctx);
1203 0 : return LDB_ERR_NO_SUCH_OBJECT;
1204 : }
1205 0 : if (res->count != 1) {
1206 0 : ldb_asprintf_errstring(ldb,
1207 : "More than one object found matching optional feature GUID %s\n",
1208 : GUID_string(tmp_ctx, &op_feature_guid));
1209 0 : talloc_free(tmp_ctx);
1210 0 : return LDB_ERR_OPERATIONS_ERROR;
1211 : }
1212 :
1213 0 : *msg = talloc_steal(mem_ctx, res->msgs[0]);
1214 :
1215 0 : talloc_free(tmp_ctx);
1216 0 : return LDB_SUCCESS;
1217 : }
1218 :
1219 0 : static int rootdse_enable_recycle_bin(struct ldb_module *module,struct ldb_context *ldb,
1220 : TALLOC_CTX *mem_ctx, struct ldb_dn *op_feature_scope_dn,
1221 : struct ldb_message *op_feature_msg, struct ldb_request *parent)
1222 : {
1223 : int ret;
1224 0 : const int domain_func_level = dsdb_functional_level(ldb);
1225 : struct ldb_dn *ntds_settings_dn;
1226 : TALLOC_CTX *tmp_ctx;
1227 0 : unsigned int el_count = 0;
1228 : struct ldb_message *msg;
1229 :
1230 0 : ret = ldb_msg_find_attr_as_int(op_feature_msg, "msDS-RequiredForestBehaviorVersion", 0);
1231 0 : if (domain_func_level < ret){
1232 0 : ldb_asprintf_errstring(ldb,
1233 : "rootdse_enable_recycle_bin: Domain functional level must be at least %d\n",
1234 : ret);
1235 0 : return LDB_ERR_UNWILLING_TO_PERFORM;
1236 : }
1237 :
1238 0 : tmp_ctx = talloc_new(mem_ctx);
1239 0 : ntds_settings_dn = samdb_ntds_settings_dn(ldb, tmp_ctx);
1240 0 : if (!ntds_settings_dn) {
1241 0 : talloc_free(tmp_ctx);
1242 0 : return ldb_error(ldb, LDB_ERR_OPERATIONS_ERROR, "Failed to find NTDS settings DN");
1243 : }
1244 :
1245 0 : ntds_settings_dn = ldb_dn_copy(tmp_ctx, ntds_settings_dn);
1246 0 : if (!ntds_settings_dn) {
1247 0 : talloc_free(tmp_ctx);
1248 0 : return ldb_error(ldb, LDB_ERR_OPERATIONS_ERROR, "Failed to copy NTDS settings DN");
1249 : }
1250 :
1251 0 : msg = ldb_msg_new(tmp_ctx);
1252 0 : if (msg == NULL) {
1253 0 : talloc_free(tmp_ctx);
1254 0 : return ldb_module_oom(module);
1255 : }
1256 0 : msg->dn = ntds_settings_dn;
1257 :
1258 0 : ldb_msg_add_linearized_dn(msg, "msDS-EnabledFeature", op_feature_msg->dn);
1259 0 : msg->elements[el_count++].flags = LDB_FLAG_MOD_ADD;
1260 :
1261 0 : ret = dsdb_module_modify(module, msg, DSDB_FLAG_NEXT_MODULE, parent);
1262 0 : if (ret != LDB_SUCCESS) {
1263 0 : ldb_asprintf_errstring(ldb,
1264 : "rootdse_enable_recycle_bin: Failed to modify object %s - %s",
1265 : ldb_dn_get_linearized(ntds_settings_dn),
1266 : ldb_errstring(ldb));
1267 0 : talloc_free(tmp_ctx);
1268 0 : return ret;
1269 : }
1270 :
1271 0 : msg->dn = op_feature_scope_dn;
1272 0 : ret = dsdb_module_modify(module, msg, DSDB_FLAG_NEXT_MODULE, parent);
1273 0 : if (ret != LDB_SUCCESS) {
1274 0 : ldb_asprintf_errstring(ldb,
1275 : "rootdse_enable_recycle_bin: Failed to modify object %s - %s",
1276 : ldb_dn_get_linearized(op_feature_scope_dn),
1277 : ldb_errstring(ldb));
1278 0 : talloc_free(tmp_ctx);
1279 0 : return ret;
1280 : }
1281 :
1282 0 : return LDB_SUCCESS;
1283 : }
1284 :
1285 0 : static int rootdse_enableoptionalfeature(struct ldb_module *module, struct ldb_request *req)
1286 : {
1287 : /*
1288 : steps:
1289 : - check for system (only system can enable features)
1290 : - extract GUID from the request
1291 : - find the feature object
1292 : - check functional level, must be at least msDS-RequiredForestBehaviorVersion
1293 : - check if it is already enabled (if enabled return LDAP_ATTRIBUTE_OR_VALUE_EXISTS) - probably not needed, just return error from the add/modify
1294 : - add/modify objects (see ntdsconnection code for an example)
1295 : */
1296 :
1297 0 : struct ldb_context *ldb = ldb_module_get_ctx(module);
1298 : struct GUID op_feature_guid;
1299 : struct ldb_dn *op_feature_scope_dn;
1300 : struct ldb_message *op_feature_msg;
1301 0 : struct auth_session_info *session_info =
1302 0 : (struct auth_session_info *)ldb_get_opaque(
1303 : ldb,
1304 : DSDB_SESSION_INFO);
1305 0 : TALLOC_CTX *tmp_ctx = talloc_new(ldb);
1306 : int ret;
1307 : const char *guid_string;
1308 :
1309 0 : if (security_session_user_level(session_info, NULL) != SECURITY_SYSTEM) {
1310 0 : ldb_set_errstring(ldb, "rootdse: Insufficient rights for enableoptionalfeature");
1311 0 : return LDB_ERR_UNWILLING_TO_PERFORM;
1312 : }
1313 :
1314 0 : ret = get_optional_feature_dn_guid(req, ldb, tmp_ctx, &op_feature_scope_dn, &op_feature_guid);
1315 0 : if (ret != LDB_SUCCESS) {
1316 0 : talloc_free(tmp_ctx);
1317 0 : return ret;
1318 : }
1319 :
1320 0 : guid_string = GUID_string(tmp_ctx, &op_feature_guid);
1321 0 : if (!guid_string) {
1322 0 : ldb_set_errstring(ldb, "rootdse: bad optional feature GUID");
1323 0 : return LDB_ERR_UNWILLING_TO_PERFORM;
1324 : }
1325 :
1326 0 : ret = dsdb_find_optional_feature(module, ldb, tmp_ctx, op_feature_guid, &op_feature_msg, req);
1327 0 : if (ret != LDB_SUCCESS) {
1328 0 : ldb_asprintf_errstring(ldb,
1329 : "rootdse: unable to find optional feature for %s - %s",
1330 : guid_string, ldb_errstring(ldb));
1331 0 : talloc_free(tmp_ctx);
1332 0 : return ret;
1333 : }
1334 :
1335 0 : if (strcasecmp(DS_GUID_FEATURE_RECYCLE_BIN, guid_string) == 0) {
1336 0 : ret = rootdse_enable_recycle_bin(module, ldb,
1337 : tmp_ctx, op_feature_scope_dn,
1338 : op_feature_msg, req);
1339 : } else {
1340 0 : ldb_asprintf_errstring(ldb,
1341 : "rootdse: unknown optional feature %s",
1342 : guid_string);
1343 0 : talloc_free(tmp_ctx);
1344 0 : return LDB_ERR_UNWILLING_TO_PERFORM;
1345 : }
1346 0 : if (ret != LDB_SUCCESS) {
1347 0 : ldb_asprintf_errstring(ldb,
1348 : "rootdse: failed to set optional feature for %s - %s",
1349 : guid_string, ldb_errstring(ldb));
1350 0 : talloc_free(tmp_ctx);
1351 0 : return ret;
1352 : }
1353 :
1354 0 : talloc_free(tmp_ctx);
1355 0 : return ldb_module_done(req, NULL, NULL, LDB_SUCCESS);;
1356 : }
1357 :
1358 474 : static int rootdse_schemaupdatenow(struct ldb_module *module, struct ldb_request *req)
1359 : {
1360 474 : struct ldb_context *ldb = ldb_module_get_ctx(module);
1361 : struct ldb_result *ext_res;
1362 : int ret;
1363 : struct ldb_dn *schema_dn;
1364 :
1365 474 : schema_dn = ldb_get_schema_basedn(ldb);
1366 474 : if (!schema_dn) {
1367 0 : ldb_reset_err_string(ldb);
1368 0 : ldb_debug(ldb, LDB_DEBUG_WARNING,
1369 : "rootdse_modify: no schema dn present: (skip ldb_extended call)\n");
1370 0 : return ldb_next_request(module, req);
1371 : }
1372 :
1373 : /*
1374 : * schemaUpdateNow has been requested. Allow this to refresh the schema
1375 : * even if we're currently in the middle of a transaction
1376 : */
1377 474 : ret = ldb_set_opaque(ldb, "dsdb_schema_refresh_expected", (void *)1);
1378 474 : if (ret != LDB_SUCCESS) {
1379 0 : return ldb_operr(ldb);
1380 : }
1381 :
1382 474 : ret = ldb_extended(ldb, DSDB_EXTENDED_SCHEMA_UPDATE_NOW_OID, schema_dn, &ext_res);
1383 474 : if (ret != LDB_SUCCESS) {
1384 0 : ldb_set_opaque(ldb, "dsdb_schema_refresh_expected", (void *)0);
1385 0 : return ldb_operr(ldb);
1386 : }
1387 :
1388 474 : talloc_free(ext_res);
1389 :
1390 474 : ret = ldb_set_opaque(ldb, "dsdb_schema_refresh_expected", (void *)0);
1391 474 : if (ret != LDB_SUCCESS) {
1392 0 : return ldb_operr(ldb);
1393 : }
1394 :
1395 474 : return ldb_module_done(req, NULL, NULL, ret);
1396 : }
1397 :
1398 36 : static int rootdse_schemaupgradeinprogress(struct ldb_module *module, struct ldb_request *req)
1399 : {
1400 36 : struct ldb_context *ldb = ldb_module_get_ctx(module);
1401 36 : int ret = LDB_SUCCESS;
1402 : struct ldb_dn *schema_dn;
1403 :
1404 36 : schema_dn = ldb_get_schema_basedn(ldb);
1405 36 : if (!schema_dn) {
1406 0 : ldb_reset_err_string(ldb);
1407 0 : ldb_debug(ldb, LDB_DEBUG_WARNING,
1408 : "rootdse_modify: no schema dn present: (skip ldb_extended call)\n");
1409 0 : return ldb_next_request(module, req);
1410 : }
1411 :
1412 : /* FIXME we have to do something in order to relax constraints for DRS
1413 : * setting schemaUpgradeInProgress cause the fschemaUpgradeInProgress
1414 : * in all LDAP connection (2K3/2K3R2) or in the current connection (2K8 and +)
1415 : * to be set to true.
1416 : */
1417 :
1418 : /* from 5.113 LDAPConnections in DRSR.pdf
1419 : * fschemaUpgradeInProgress: A Boolean that specifies certain constraint
1420 : * validations are skipped when adding, updating, or removing directory
1421 : * objects on the opened connection. The skipped constraint validations
1422 : * are documented in the applicable constraint sections in [MS-ADTS].
1423 : */
1424 36 : return ldb_module_done(req, NULL, NULL, ret);
1425 : }
1426 :
1427 320298 : static int rootdse_add(struct ldb_module *module, struct ldb_request *req)
1428 : {
1429 320298 : struct ldb_context *ldb = ldb_module_get_ctx(module);
1430 : int ret;
1431 :
1432 320298 : ret = rootdse_filter_operations(module, req);
1433 320298 : if (ret != LDB_SUCCESS) {
1434 9 : return ret;
1435 : }
1436 :
1437 320289 : ret = rootdse_filter_controls(module, req);
1438 320289 : if (ret != LDB_SUCCESS) {
1439 0 : return ret;
1440 : }
1441 :
1442 : /*
1443 : If dn is not "" we should let it pass through
1444 : */
1445 320289 : if (!ldb_dn_is_null(req->op.add.message->dn)) {
1446 320288 : return ldb_next_request(module, req);
1447 : }
1448 :
1449 1 : ldb_set_errstring(ldb, "rootdse_add: you cannot add a new rootdse entry!");
1450 1 : return LDB_ERR_NAMING_VIOLATION;
1451 : }
1452 :
1453 244076 : static int rootdse_start_trans(struct ldb_module *module)
1454 : {
1455 : int ret;
1456 244076 : struct ldb_context *ldb = ldb_module_get_ctx(module);
1457 244076 : struct rootdse_private_data *data = talloc_get_type_abort(ldb_module_get_private(module),
1458 : struct rootdse_private_data);
1459 244076 : ret = ldb_next_start_trans(module);
1460 244076 : if (ret == LDB_SUCCESS) {
1461 244076 : if (data->private_ev != NULL) {
1462 0 : return ldb_operr(ldb);
1463 : }
1464 244076 : data->private_ev = s4_event_context_init(data);
1465 244076 : if (data->private_ev == NULL) {
1466 0 : return ldb_operr(ldb);
1467 : }
1468 244076 : data->saved_ev = ldb_get_event_context(ldb);
1469 244076 : ldb_set_event_context(ldb, data->private_ev);
1470 : }
1471 244076 : return ret;
1472 : }
1473 :
1474 212231 : static int rootdse_end_trans(struct ldb_module *module)
1475 : {
1476 : int ret;
1477 212231 : struct ldb_context *ldb = ldb_module_get_ctx(module);
1478 212231 : struct rootdse_private_data *data = talloc_get_type_abort(ldb_module_get_private(module),
1479 : struct rootdse_private_data);
1480 212231 : ret = ldb_next_end_trans(module);
1481 212231 : if (data->saved_ev == NULL) {
1482 0 : return ldb_operr(ldb);
1483 : }
1484 :
1485 212231 : if (data->private_ev != ldb_get_event_context(ldb)) {
1486 0 : return ldb_operr(ldb);
1487 : }
1488 212231 : ldb_set_event_context(ldb, data->saved_ev);
1489 212231 : data->saved_ev = NULL;
1490 212231 : TALLOC_FREE(data->private_ev);
1491 212231 : return ret;
1492 : }
1493 :
1494 31844 : static int rootdse_del_trans(struct ldb_module *module)
1495 : {
1496 : int ret;
1497 31844 : struct ldb_context *ldb = ldb_module_get_ctx(module);
1498 31844 : struct rootdse_private_data *data = talloc_get_type_abort(ldb_module_get_private(module),
1499 : struct rootdse_private_data);
1500 31844 : ret = ldb_next_del_trans(module);
1501 31844 : if (data->saved_ev == NULL) {
1502 0 : return ldb_operr(ldb);
1503 : }
1504 :
1505 31844 : if (data->private_ev != ldb_get_event_context(ldb)) {
1506 0 : return ldb_operr(ldb);
1507 : }
1508 31844 : ldb_set_event_context(ldb, data->saved_ev);
1509 31844 : data->saved_ev = NULL;
1510 31844 : TALLOC_FREE(data->private_ev);
1511 31844 : return ret;
1512 : }
1513 :
1514 : struct fsmo_transfer_state {
1515 : struct ldb_context *ldb;
1516 : struct ldb_request *req;
1517 : struct ldb_module *module;
1518 : };
1519 :
1520 : /*
1521 : called when a FSMO transfer operation has completed
1522 : */
1523 22 : static void rootdse_fsmo_transfer_callback(struct tevent_req *treq)
1524 : {
1525 22 : struct fsmo_transfer_state *fsmo = tevent_req_callback_data(treq, struct fsmo_transfer_state);
1526 : NTSTATUS status;
1527 : WERROR werr;
1528 : int ret;
1529 22 : struct ldb_request *req = fsmo->req;
1530 22 : struct ldb_context *ldb = fsmo->ldb;
1531 22 : struct ldb_module *module = fsmo->module;
1532 :
1533 22 : status = dcerpc_drepl_takeFSMORole_recv(treq, fsmo, &werr);
1534 22 : talloc_free(fsmo);
1535 22 : if (!NT_STATUS_IS_OK(status)) {
1536 0 : ldb_asprintf_errstring(ldb, "Failed FSMO transfer: %s", nt_errstr(status));
1537 : /*
1538 : * Now that it is failed, start the transaction up
1539 : * again so the wrappers can close it without additional error
1540 : */
1541 0 : rootdse_start_trans(module);
1542 0 : ldb_module_done(req, NULL, NULL, LDB_ERR_UNAVAILABLE);
1543 0 : return;
1544 : }
1545 22 : if (!W_ERROR_IS_OK(werr)) {
1546 0 : ldb_asprintf_errstring(ldb, "Failed FSMO transfer: %s", win_errstr(werr));
1547 : /*
1548 : * Now that it is failed, start the transaction up
1549 : * again so the wrappers can close it without additional error
1550 : */
1551 0 : rootdse_start_trans(module);
1552 0 : ldb_module_done(req, NULL, NULL, LDB_ERR_UNAVAILABLE);
1553 0 : return;
1554 : }
1555 :
1556 : /*
1557 : * Now that it is done, start the transaction up again so the
1558 : * wrappers can close it without error
1559 : */
1560 22 : ret = rootdse_start_trans(module);
1561 22 : ldb_module_done(req, NULL, NULL, ret);
1562 : }
1563 :
1564 22 : static int rootdse_become_master(struct ldb_module *module,
1565 : struct ldb_request *req,
1566 : enum drepl_role_master role)
1567 : {
1568 : struct imessaging_context *msg;
1569 22 : struct ldb_context *ldb = ldb_module_get_ctx(module);
1570 22 : TALLOC_CTX *tmp_ctx = talloc_new(req);
1571 22 : struct loadparm_context *lp_ctx = ldb_get_opaque(ldb, "loadparm");
1572 : bool am_rodc;
1573 : struct dcerpc_binding_handle *irpc_handle;
1574 : int ret;
1575 : struct auth_session_info *session_info;
1576 : enum security_user_level level;
1577 : struct fsmo_transfer_state *fsmo;
1578 : struct tevent_req *treq;
1579 :
1580 22 : session_info = (struct auth_session_info *)ldb_get_opaque(
1581 : ldb_module_get_ctx(module),
1582 : DSDB_SESSION_INFO);
1583 22 : level = security_session_user_level(session_info, NULL);
1584 22 : if (level < SECURITY_ADMINISTRATOR) {
1585 0 : return ldb_error(ldb, LDB_ERR_INSUFFICIENT_ACCESS_RIGHTS, "Denied rootDSE modify for non-administrator");
1586 : }
1587 :
1588 22 : ret = samdb_rodc(ldb, &am_rodc);
1589 22 : if (ret != LDB_SUCCESS) {
1590 0 : return ldb_error(ldb, ret, "Could not determine if server is RODC.");
1591 : }
1592 :
1593 22 : if (am_rodc) {
1594 0 : return ldb_error(ldb, LDB_ERR_UNWILLING_TO_PERFORM,
1595 : "RODC cannot become a role master.");
1596 : }
1597 :
1598 : /*
1599 : * We always delete the transaction, not commit it, because
1600 : * this gives the least surprise to this surprising action (as
1601 : * we will never record anything done to this point
1602 : */
1603 22 : rootdse_del_trans(module);
1604 :
1605 : /*
1606 : * We must use the global event loop to run this IRPC in
1607 : * single process mode
1608 : */
1609 22 : ldb_handle_use_global_event_context(req->handle);
1610 :
1611 22 : msg = imessaging_client_init(tmp_ctx, lp_ctx,
1612 : ldb_get_event_context(ldb));
1613 22 : if (!msg) {
1614 0 : ldb_asprintf_errstring(ldb, "Failed to generate client messaging context in %s", lpcfg_imessaging_path(tmp_ctx, lp_ctx));
1615 0 : return LDB_ERR_OPERATIONS_ERROR;
1616 : }
1617 22 : irpc_handle = irpc_binding_handle_by_name(tmp_ctx, msg,
1618 : "dreplsrv",
1619 : &ndr_table_irpc);
1620 22 : if (irpc_handle == NULL) {
1621 0 : return ldb_oom(ldb);
1622 : }
1623 22 : fsmo = talloc_zero(req, struct fsmo_transfer_state);
1624 22 : if (fsmo == NULL) {
1625 0 : return ldb_oom(ldb);
1626 : }
1627 22 : fsmo->ldb = ldb;
1628 22 : fsmo->req = req;
1629 22 : fsmo->module = module;
1630 :
1631 : /*
1632 : * we send the call asynchronously, as the ldap client is
1633 : * expecting to get an error back if the role transfer fails
1634 : *
1635 : * We need more than the default 10 seconds IRPC allows, so
1636 : * set a longer timeout (default ldb timeout is 300 seconds).
1637 : * We send an async reply when we are done.
1638 : *
1639 : * We are the first module, so don't bother working out how
1640 : * long we have spent so far.
1641 : */
1642 22 : dcerpc_binding_handle_set_timeout(irpc_handle, req->timeout);
1643 :
1644 22 : treq = dcerpc_drepl_takeFSMORole_send(req, ldb_get_event_context(ldb), irpc_handle, role);
1645 22 : if (treq == NULL) {
1646 0 : return ldb_oom(ldb);
1647 : }
1648 :
1649 22 : tevent_req_set_callback(treq, rootdse_fsmo_transfer_callback, fsmo);
1650 22 : return LDB_SUCCESS;
1651 : }
1652 :
1653 243833 : static int rootdse_modify(struct ldb_module *module, struct ldb_request *req)
1654 : {
1655 243833 : struct ldb_context *ldb = ldb_module_get_ctx(module);
1656 : int ret;
1657 :
1658 243833 : ret = rootdse_filter_operations(module, req);
1659 243833 : if (ret != LDB_SUCCESS) {
1660 9 : return ret;
1661 : }
1662 :
1663 243824 : ret = rootdse_filter_controls(module, req);
1664 243824 : if (ret != LDB_SUCCESS) {
1665 0 : return ret;
1666 : }
1667 :
1668 : /*
1669 : If dn is not "" we should let it pass through
1670 : */
1671 243824 : if (!ldb_dn_is_null(req->op.mod.message->dn)) {
1672 243289 : return ldb_next_request(module, req);
1673 : }
1674 :
1675 : /*
1676 : dn is empty so check for schemaUpdateNow attribute
1677 : "The type of modification and values specified in the LDAP modify operation do not matter." MSDN
1678 : */
1679 535 : if (ldb_msg_find_element(req->op.mod.message, "schemaUpdateNow")) {
1680 474 : return rootdse_schemaupdatenow(module, req);
1681 : }
1682 61 : if (ldb_msg_find_element(req->op.mod.message, "becomeDomainMaster")) {
1683 4 : return rootdse_become_master(module, req, DREPL_NAMING_MASTER);
1684 : }
1685 57 : if (ldb_msg_find_element(req->op.mod.message, "becomeInfrastructureMaster")) {
1686 4 : return rootdse_become_master(module, req, DREPL_INFRASTRUCTURE_MASTER);
1687 : }
1688 53 : if (ldb_msg_find_element(req->op.mod.message, "becomeRidMaster")) {
1689 6 : return rootdse_become_master(module, req, DREPL_RID_MASTER);
1690 : }
1691 47 : if (ldb_msg_find_element(req->op.mod.message, "becomeSchemaMaster")) {
1692 4 : return rootdse_become_master(module, req, DREPL_SCHEMA_MASTER);
1693 : }
1694 43 : if (ldb_msg_find_element(req->op.mod.message, "becomePdc")) {
1695 4 : return rootdse_become_master(module, req, DREPL_PDC_MASTER);
1696 : }
1697 39 : if (ldb_msg_find_element(req->op.mod.message, "enableOptionalFeature")) {
1698 0 : return rootdse_enableoptionalfeature(module, req);
1699 : }
1700 39 : if (ldb_msg_find_element(req->op.mod.message, "schemaUpgradeInProgress")) {
1701 36 : return rootdse_schemaupgradeinprogress(module, req);
1702 : }
1703 :
1704 3 : ldb_set_errstring(ldb, "rootdse_modify: unknown attribute to change!");
1705 3 : return LDB_ERR_UNWILLING_TO_PERFORM;
1706 : }
1707 :
1708 672 : static int rootdse_rename(struct ldb_module *module, struct ldb_request *req)
1709 : {
1710 672 : struct ldb_context *ldb = ldb_module_get_ctx(module);
1711 : int ret;
1712 :
1713 672 : ret = rootdse_filter_operations(module, req);
1714 672 : if (ret != LDB_SUCCESS) {
1715 0 : return ret;
1716 : }
1717 :
1718 672 : ret = rootdse_filter_controls(module, req);
1719 672 : if (ret != LDB_SUCCESS) {
1720 0 : return ret;
1721 : }
1722 :
1723 : /*
1724 : If dn is not "" we should let it pass through
1725 : */
1726 672 : if (!ldb_dn_is_null(req->op.rename.olddn)) {
1727 672 : return ldb_next_request(module, req);
1728 : }
1729 :
1730 0 : ldb_set_errstring(ldb, "rootdse_remove: you cannot rename the rootdse entry!");
1731 0 : return LDB_ERR_NO_SUCH_OBJECT;
1732 : }
1733 :
1734 73544 : static int rootdse_delete(struct ldb_module *module, struct ldb_request *req)
1735 : {
1736 73544 : struct ldb_context *ldb = ldb_module_get_ctx(module);
1737 : int ret;
1738 :
1739 73544 : ret = rootdse_filter_operations(module, req);
1740 73544 : if (ret != LDB_SUCCESS) {
1741 9 : return ret;
1742 : }
1743 :
1744 73535 : ret = rootdse_filter_controls(module, req);
1745 73535 : if (ret != LDB_SUCCESS) {
1746 0 : return ret;
1747 : }
1748 :
1749 : /*
1750 : If dn is not "" we should let it pass through
1751 : */
1752 73535 : if (!ldb_dn_is_null(req->op.del.dn)) {
1753 73534 : return ldb_next_request(module, req);
1754 : }
1755 :
1756 1 : ldb_set_errstring(ldb, "rootdse_remove: you cannot delete the rootdse entry!");
1757 1 : return LDB_ERR_NO_SUCH_OBJECT;
1758 : }
1759 :
1760 1226464 : static int rootdse_extended(struct ldb_module *module, struct ldb_request *req)
1761 : {
1762 : int ret;
1763 :
1764 1226464 : ret = rootdse_filter_operations(module, req);
1765 1226464 : if (ret != LDB_SUCCESS) {
1766 0 : return ret;
1767 : }
1768 :
1769 1226464 : ret = rootdse_filter_controls(module, req);
1770 1226464 : if (ret != LDB_SUCCESS) {
1771 0 : return ret;
1772 : }
1773 :
1774 1226464 : return ldb_next_request(module, req);
1775 : }
1776 :
1777 : static const struct ldb_module_ops ldb_rootdse_module_ops = {
1778 : .name = "rootdse",
1779 : .init_context = rootdse_init,
1780 : .search = rootdse_search,
1781 : .request = rootdse_request,
1782 : .add = rootdse_add,
1783 : .modify = rootdse_modify,
1784 : .rename = rootdse_rename,
1785 : .extended = rootdse_extended,
1786 : .del = rootdse_delete,
1787 : .start_transaction = rootdse_start_trans,
1788 : .end_transaction = rootdse_end_trans,
1789 : .del_transaction = rootdse_del_trans
1790 : };
1791 :
1792 4310 : int ldb_rootdse_module_init(const char *version)
1793 : {
1794 4310 : LDB_MODULE_CHECK_VERSION(version);
1795 4310 : return ldb_register_module(&ldb_rootdse_module_ops);
1796 : }
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