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 10940241 : static int do_attribute(const char * const *attrs, const char *name)
63 : {
64 10938533 : return attrs == NULL ||
65 21873434 : ldb_attr_in_list(attrs, name) ||
66 10475333 : ldb_attr_in_list(attrs, "*");
67 : }
68 :
69 6123567 : static int do_attribute_explicit(const char * const *attrs, const char *name)
70 : {
71 6123543 : 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 0 : struct ldb_dn *dn, *dn2;
83 0 : struct ldb_val *v;
84 0 : int ret;
85 0 : struct ldb_request *req2;
86 0 : char *dn_string;
87 77 : const char *no_attrs[] = { NULL };
88 0 : struct ldb_result *res;
89 0 : struct ldb_extended_dn_control *ext_dn;
90 77 : TALLOC_CTX *tmp_ctx = talloc_new(req);
91 0 : struct ldb_context *ldb;
92 77 : int edn_type = 0;
93 0 : unsigned int i;
94 0 : struct ldb_message_element *el;
95 :
96 77 : ldb = ldb_module_get_ctx(module);
97 :
98 77 : ext_dn = talloc_get_type(edn_control->data, struct ldb_extended_dn_control);
99 77 : if (ext_dn) {
100 77 : edn_type = ext_dn->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 0 : struct ldb_result *res;
193 0 : int ret;
194 0 : 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 883005 : static int rootdse_add_dynamic(struct rootdse_context *ac, struct ldb_message *msg)
231 : {
232 17720 : struct ldb_context *ldb;
233 883005 : struct rootdse_private_data *priv = talloc_get_type(ldb_module_get_private(ac->module), struct rootdse_private_data);
234 883005 : const char * const *attrs = ac->req->op.search.attrs;
235 883005 : const char **server_sasl = NULL;
236 17720 : const struct dsdb_schema *schema;
237 17720 : int *val;
238 17720 : struct ldb_control *edn_control;
239 883005 : const char *dn_attrs[] = {
240 : "configurationNamingContext",
241 : "defaultNamingContext",
242 : "rootDomainNamingContext",
243 : "schemaNamingContext",
244 : "serverName",
245 : "validFSMOs",
246 : "namingContexts",
247 : NULL
248 : };
249 883005 : const char *guid_attrs[] = {
250 : "dsServiceName",
251 : NULL
252 : };
253 17720 : unsigned int i;
254 :
255 883005 : ldb = ldb_module_get_ctx(ac->module);
256 883005 : schema = dsdb_get_schema(ldb, NULL);
257 :
258 883005 : msg->dn = ldb_dn_new(msg, ldb, NULL);
259 :
260 : /* don't return the distinguishedName, cn and name attributes */
261 883005 : ldb_msg_remove_attr(msg, "distinguishedName");
262 883005 : ldb_msg_remove_attr(msg, "cn");
263 883005 : ldb_msg_remove_attr(msg, "name");
264 :
265 883005 : if (do_attribute(attrs, "serverName")) {
266 1979 : if (ldb_msg_add_linearized_dn(msg, "serverName",
267 : samdb_server_dn(ldb, msg)) != LDB_SUCCESS) {
268 0 : goto failed;
269 : }
270 : }
271 :
272 883005 : if (do_attribute(attrs, "dnsHostName")) {
273 12 : struct ldb_result *res;
274 12 : int ret;
275 2105 : const char *dns_attrs[] = { "dNSHostName", NULL };
276 2105 : 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 2105 : if (ret == LDB_SUCCESS) {
282 2105 : const char *hostname = ldb_msg_find_attr_as_string(res->msgs[0], "dNSHostName", NULL);
283 2105 : if (hostname != NULL) {
284 2105 : if (ldb_msg_add_string(msg, "dnsHostName", hostname)) {
285 0 : goto failed;
286 : }
287 : }
288 : }
289 : }
290 :
291 883005 : if (do_attribute(attrs, "ldapServiceName")) {
292 6 : struct loadparm_context *lp_ctx
293 849 : = talloc_get_type(ldb_get_opaque(ldb, "loadparm"),
294 : struct loadparm_context);
295 6 : char *ldap_service_name, *hostname;
296 :
297 849 : hostname = strlower_talloc(msg, lpcfg_netbios_name(lp_ctx));
298 849 : if (hostname == NULL) {
299 0 : goto failed;
300 : }
301 :
302 849 : ldap_service_name = talloc_asprintf(msg, "%s:%s$@%s",
303 : samdb_forest_name(ldb, msg),
304 : hostname, lpcfg_realm(lp_ctx));
305 849 : if (ldap_service_name == NULL) {
306 0 : goto failed;
307 : }
308 :
309 849 : if (ldb_msg_add_string(msg, "ldapServiceName",
310 : ldap_service_name) != LDB_SUCCESS) {
311 0 : goto failed;
312 : }
313 : }
314 :
315 883005 : if (do_attribute(attrs, "currentTime")) {
316 1322 : char *timestr = ldb_timestring(msg, time(NULL));
317 :
318 1322 : if (timestr == NULL) {
319 0 : goto failed;
320 : }
321 :
322 1322 : if (ldb_msg_add_steal_string(
323 : msg, "currentTime", timestr) != LDB_SUCCESS) {
324 0 : goto failed;
325 : }
326 : }
327 :
328 883005 : if (priv && do_attribute(attrs, "supportedControl")) {
329 66772 : for (i = 0; i < priv->num_controls; i++) {
330 63965 : char *control = talloc_strdup(msg, priv->controls[i]);
331 63965 : if (!control) {
332 0 : goto failed;
333 : }
334 63965 : if (ldb_msg_add_steal_string(msg, "supportedControl",
335 : control) != LDB_SUCCESS) {
336 0 : goto failed;
337 : }
338 : }
339 : }
340 :
341 883005 : if (priv && do_attribute(attrs, "namingContexts")) {
342 14261 : for (i = 0; i < priv->num_partitions; i++) {
343 11312 : struct ldb_dn *dn = priv->partitions[i];
344 11312 : 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 883005 : server_sasl = talloc_get_type(ldb_get_opaque(ldb, "supportedSASLMechanisms"),
352 : const char *);
353 883005 : if (server_sasl && do_attribute(attrs, "supportedSASLMechanisms")) {
354 108148 : for (i = 0; server_sasl && server_sasl[i]; i++) {
355 81111 : char *sasl_name = talloc_strdup(msg, server_sasl[i]);
356 81111 : if (!sasl_name) {
357 0 : goto failed;
358 : }
359 81111 : if (ldb_msg_add_steal_string(msg, "supportedSASLMechanisms",
360 : sasl_name) != LDB_SUCCESS) {
361 0 : goto failed;
362 : }
363 : }
364 : }
365 :
366 883005 : if (do_attribute(attrs, "highestCommittedUSN")) {
367 6 : uint64_t seq_num;
368 1364 : int ret = ldb_sequence_number(ldb, LDB_SEQ_HIGHEST_SEQ, &seq_num);
369 1364 : if (ret == LDB_SUCCESS) {
370 1364 : if (samdb_msg_add_uint64(ldb, msg, msg,
371 : "highestCommittedUSN",
372 : seq_num) != LDB_SUCCESS) {
373 0 : goto failed;
374 : }
375 : }
376 : }
377 :
378 883005 : if (schema && do_attribute_explicit(attrs, "dsSchemaAttrCount")) {
379 0 : 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 883005 : if (schema && do_attribute_explicit(attrs, "dsSchemaClassCount")) {
393 0 : 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 883005 : 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 883005 : if (do_attribute_explicit(attrs, "validFSMOs")) {
414 0 : 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 0 : 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 883005 : 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 883005 : if (do_attribute(attrs, "domainFunctionality")) {
441 1067 : if (samdb_msg_add_int(ldb, msg, msg, "domainFunctionality",
442 : dsdb_functional_level(ldb)) != LDB_SUCCESS) {
443 0 : goto failed;
444 : }
445 : }
446 :
447 883005 : if (do_attribute(attrs, "forestFunctionality")) {
448 876 : 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 883005 : if (do_attribute(attrs, "domainControllerFunctionality")
455 1303 : && (val = talloc_get_type(ldb_get_opaque(ldb, "domainControllerFunctionality"), int))) {
456 1294 : if (samdb_msg_add_int(ldb, msg, msg,
457 : "domainControllerFunctionality",
458 : *val) != LDB_SUCCESS) {
459 0 : goto failed;
460 : }
461 : }
462 :
463 883005 : 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 */
470 848 : if (ldb_msg_add_fmt(msg, "isGlobalCatalogReady",
471 848 : "%s", samdb_is_gc(ldb)?"TRUE":"FALSE") != LDB_SUCCESS) {
472 0 : goto failed;
473 : }
474 : }
475 :
476 883005 : if (do_attribute_explicit(attrs, "tokenGroups")) {
477 : /* Obtain the user's session_info */
478 13 : struct auth_session_info *session_info
479 541 : = (struct auth_session_info *)ldb_get_opaque(
480 : ldb,
481 : DSDB_SESSION_INFO);
482 541 : if (session_info && session_info->security_token) {
483 : /* The list of groups this user is in */
484 3233 : for (i = 0; i < session_info->security_token->num_sids; i++) {
485 2692 : if (samdb_msg_add_dom_sid(ldb, msg, msg,
486 : "tokenGroups",
487 2692 : &session_info->security_token->sids[i]) != LDB_SUCCESS) {
488 0 : goto failed;
489 : }
490 : }
491 : }
492 : }
493 :
494 883005 : if (ac->netlogon.length > 0) {
495 2724 : 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 883005 : 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 1783711 : for (i=0; guid_attrs[i]; i++) {
506 17720 : struct ldb_result *res;
507 17720 : struct ldb_message_element *el;
508 17720 : struct ldb_dn *attr_dn;
509 883005 : const char *no_attrs[] = { NULL };
510 17720 : int ret;
511 :
512 883005 : if (!do_attribute(attrs, guid_attrs[i])) continue;
513 :
514 429646 : attr_dn = ldb_msg_find_attr_as_dn(ldb, ac->req, msg, guid_attrs[i]);
515 429646 : if (attr_dn == NULL) {
516 0 : continue;
517 : }
518 :
519 429646 : 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 429646 : if (ret != LDB_SUCCESS) {
526 19 : 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 meaningful error string but not
532 : * confidential DB contents possibly in the
533 : * original string
534 : */
535 19 : 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 19 : return LDB_ERR_OPERATIONS_ERROR;
541 : }
542 :
543 429627 : el = ldb_msg_find_element(msg, guid_attrs[i]);
544 429627 : if (el == NULL) {
545 0 : return ldb_operr(ldb);
546 : }
547 :
548 429627 : talloc_steal(el->values, res->msgs[0]->dn);
549 429627 : if (edn_control) {
550 0 : struct ldb_extended_dn_control *ext_dn;
551 11 : int edn_type = 0;
552 11 : ext_dn = talloc_get_type(edn_control->data, struct ldb_extended_dn_control);
553 11 : if (ext_dn != NULL) {
554 11 : edn_type = ext_dn->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 429616 : el->values[0].data = (uint8_t *)talloc_strdup(el->values,
561 429616 : ldb_dn_get_linearized(res->msgs[0]->dn));
562 : }
563 429627 : if (el->values[0].data == NULL) {
564 0 : return ldb_oom(ldb);
565 : }
566 429627 : 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 882986 : 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 865285 : return LDB_SUCCESS;
587 :
588 0 : failed:
589 0 : return ldb_operr(ldb);
590 : }
591 :
592 : /*
593 : handle search requests
594 : */
595 :
596 883017 : static struct rootdse_context *rootdse_init_context(struct ldb_module *module,
597 : struct ldb_request *req)
598 : {
599 17720 : struct ldb_context *ldb;
600 17720 : struct rootdse_context *ac;
601 :
602 883017 : ldb = ldb_module_get_ctx(module);
603 :
604 883017 : ac = talloc_zero(req, struct rootdse_context);
605 883017 : if (ac == NULL) {
606 0 : ldb_set_errstring(ldb, "Out of Memory");
607 0 : return NULL;
608 : }
609 :
610 883017 : ac->module = module;
611 883017 : ac->req = req;
612 :
613 883017 : return ac;
614 : }
615 :
616 1765991 : static int rootdse_callback(struct ldb_request *req, struct ldb_reply *ares)
617 : {
618 35421 : struct rootdse_context *ac;
619 35421 : int ret;
620 :
621 1765991 : ac = talloc_get_type(req->context, struct rootdse_context);
622 :
623 1765991 : if (!ares) {
624 0 : return ldb_module_done(ac->req, NULL, NULL,
625 : LDB_ERR_OPERATIONS_ERROR);
626 : }
627 1765991 : if (ares->error != LDB_SUCCESS) {
628 0 : return ldb_module_done(ac->req, ares->controls,
629 : ares->response, ares->error);
630 : }
631 :
632 1765991 : switch (ares->type) {
633 883005 : case LDB_REPLY_ENTRY:
634 : /* for each record returned post-process to add any dynamic
635 : attributes that have been asked for */
636 883005 : ret = rootdse_add_dynamic(ac, ares->message);
637 883005 : if (ret != LDB_SUCCESS) {
638 19 : talloc_free(ares);
639 19 : return ldb_module_done(ac->req, NULL, NULL, ret);
640 : }
641 :
642 882986 : 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 882986 : case LDB_REPLY_DONE:
650 882986 : 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 21042469 : static int rootdse_filter_controls(struct ldb_module *module, struct ldb_request *req)
680 : {
681 1309473 : unsigned int i, j;
682 21042469 : struct rootdse_private_data *priv = talloc_get_type(ldb_module_get_private(module), struct rootdse_private_data);
683 1309473 : bool is_untrusted;
684 :
685 21042469 : if (!req->controls) {
686 5168576 : return LDB_SUCCESS;
687 : }
688 :
689 15607245 : is_untrusted = ldb_req_is_untrusted(req);
690 :
691 59465951 : for (i=0; req->controls[i]; i++) {
692 42815881 : bool is_registered = false;
693 42815881 : bool is_critical = (req->controls[i]->critical != 0);
694 :
695 42815881 : if (req->controls[i]->oid == NULL) {
696 0 : continue;
697 : }
698 :
699 42815881 : if (is_untrusted || is_critical) {
700 333691889 : for (j=0; j<priv->num_controls; j++) {
701 333020456 : if (strcasecmp(priv->controls[j], req->controls[i]->oid) == 0) {
702 18048243 : is_registered = true;
703 18048243 : break;
704 : }
705 : }
706 : }
707 :
708 42815881 : if (is_untrusted && !is_registered) {
709 575109 : if (!is_critical) {
710 : /* remove it by marking the oid NULL */
711 575109 : req->controls[i]->oid = NULL;
712 575109 : req->controls[i]->data = NULL;
713 575109 : req->controls[i]->critical = 0;
714 575109 : 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 42240772 : if (!is_critical) {
725 22651430 : 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 19589342 : if (is_registered &&
736 19493018 : strcmp(req->controls[i]->oid,
737 19492492 : LDB_CONTROL_DIRSYNC_OID) != 0 &&
738 19492492 : strcmp(req->controls[i]->oid,
739 19439460 : LDB_CONTROL_VLV_REQ_OID) != 0 &&
740 19439460 : strcmp(req->controls[i]->oid,
741 : LDB_CONTROL_SERVER_SORT_OID) != 0) {
742 19385681 : req->controls[i]->critical = 0;
743 : }
744 : }
745 :
746 14564420 : return LDB_SUCCESS;
747 : }
748 :
749 : /* Ensure that anonymous users are not allowed to make anything other than rootDSE search operations */
750 :
751 21042543 : static int rootdse_filter_operations(struct ldb_module *module, struct ldb_request *req)
752 : {
753 1309473 : struct auth_session_info *session_info;
754 21042543 : struct rootdse_private_data *priv = talloc_get_type(ldb_module_get_private(module), struct rootdse_private_data);
755 21042543 : bool is_untrusted = ldb_req_is_untrusted(req);
756 21042543 : bool is_anonymous = true;
757 21042543 : if (is_untrusted == false) {
758 18735523 : return LDB_SUCCESS;
759 : }
760 :
761 998134 : session_info = (struct auth_session_info *)ldb_get_opaque(
762 : ldb_module_get_ctx(module),
763 : DSDB_SESSION_INFO);
764 998134 : if (session_info) {
765 998134 : is_anonymous = security_token_is_anonymous(session_info->security_token);
766 : }
767 :
768 998134 : if (is_anonymous == false || (priv && priv->block_anonymous == false)) {
769 971011 : return LDB_SUCCESS;
770 : }
771 :
772 27123 : if (req->operation == LDB_SEARCH) {
773 27096 : if (req->op.search.scope == LDB_SCOPE_BASE && ldb_dn_is_null(req->op.search.base)) {
774 26927 : return LDB_SUCCESS;
775 : }
776 : }
777 74 : ldb_set_errstring(ldb_module_get_ctx(module), "Operation unavailable without authentication");
778 74 : return LDB_ERR_OPERATIONS_ERROR;
779 : }
780 :
781 2736 : static int rootdse_handle_netlogon(struct rootdse_context *ac)
782 : {
783 36 : struct ldb_context *ldb;
784 36 : struct ldb_parse_tree *tree;
785 36 : struct loadparm_context *lp_ctx;
786 36 : struct tsocket_address *src_addr;
787 2736 : TALLOC_CTX *tmp_ctx = talloc_new(ac->req);
788 36 : const char *domain, *host, *user, *domain_guid;
789 2736 : char *src_addr_s = NULL;
790 36 : struct dom_sid *domain_sid;
791 2736 : int acct_control = -1;
792 2736 : int version = -1;
793 36 : NTSTATUS status;
794 36 : struct netlogon_samlogon_response netlogon;
795 2736 : int ret = LDB_ERR_OPERATIONS_ERROR;
796 :
797 2736 : ldb = ldb_module_get_ctx(ac->module);
798 2736 : tree = ac->req->op.search.tree;
799 2736 : lp_ctx = talloc_get_type(ldb_get_opaque(ldb, "loadparm"),
800 : struct loadparm_context);
801 2736 : src_addr = talloc_get_type(ldb_get_opaque(ldb, "remoteAddress"),
802 : struct tsocket_address);
803 2736 : if (src_addr) {
804 2736 : src_addr_s = tsocket_address_inet_addr_string(src_addr,
805 : tmp_ctx);
806 : }
807 :
808 2736 : status = parse_netlogon_request(tree, lp_ctx, tmp_ctx,
809 : &domain, &host, &user, &domain_guid,
810 : &domain_sid, &acct_control, &version);
811 2736 : if (!NT_STATUS_IS_OK(status)) {
812 6 : goto failed;
813 : }
814 :
815 2730 : 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 2730 : if (!NT_STATUS_IS_OK(status)) {
823 6 : goto failed;
824 : }
825 :
826 2724 : status = push_netlogon_samlogon_response(&ac->netlogon, ac, &netlogon);
827 2724 : if (!NT_STATUS_IS_OK(status)) {
828 0 : goto failed;
829 : }
830 :
831 2688 : ret = LDB_SUCCESS;
832 2736 : failed:
833 2736 : talloc_free(tmp_ctx);
834 2736 : return ret;
835 : }
836 :
837 18415563 : static int rootdse_search(struct ldb_module *module, struct ldb_request *req)
838 : {
839 1112555 : struct ldb_context *ldb;
840 1112555 : struct rootdse_context *ac;
841 1112555 : struct ldb_request *down_req;
842 1112555 : int ret;
843 :
844 18415563 : ret = rootdse_filter_operations(module, req);
845 18415563 : if (ret != LDB_SUCCESS) {
846 47 : return ret;
847 : }
848 :
849 18415516 : ret = rootdse_filter_controls(module, req);
850 18415516 : if (ret != LDB_SUCCESS) {
851 0 : return ret;
852 : }
853 :
854 18415516 : ldb = ldb_module_get_ctx(module);
855 :
856 : /* see if its for the rootDSE - only a base search on the "" DN qualifies */
857 18415516 : 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 17532499 : return ldb_next_request(module, req);
860 : }
861 :
862 883017 : ac = rootdse_init_context(module, req);
863 883017 : if (ac == NULL) {
864 0 : return ldb_operr(ldb);
865 : }
866 :
867 883017 : if (do_attribute_explicit(req->op.search.attrs, "netlogon")) {
868 2736 : ret = rootdse_handle_netlogon(ac);
869 : /* We have to return an empty result, so don't forward `ret' */
870 2736 : 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 883005 : 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 883005 : LDB_REQ_SET_LOCATION(down_req);
885 883005 : if (ret != LDB_SUCCESS) {
886 0 : return ret;
887 : }
888 :
889 883005 : return ldb_next_request(module, down_req);
890 : }
891 :
892 5172805 : static struct rootdse_private_data *rootdse_get_private_data(struct ldb_module *module)
893 : {
894 5172805 : void *priv = ldb_module_get_private(module);
895 5172805 : struct rootdse_private_data *data = NULL;
896 173914 : struct ldb_context *ldb
897 5172805 : = ldb_module_get_ctx(module);
898 :
899 5172805 : if (priv != NULL) {
900 4991418 : data = talloc_get_type_abort(priv,
901 : struct rootdse_private_data);
902 : }
903 :
904 5166765 : if (data != NULL) {
905 4823544 : return data;
906 : }
907 :
908 181387 : data = talloc_zero(module, struct rootdse_private_data);
909 181387 : if (data == NULL) {
910 0 : return NULL;
911 : }
912 :
913 181387 : data->num_controls = 0;
914 181387 : data->controls = NULL;
915 181387 : data->num_partitions = 0;
916 181387 : data->partitions = NULL;
917 181387 : data->block_anonymous = true;
918 :
919 181387 : ldb_module_set_private(module, data);
920 :
921 181387 : ldb_set_default_dns(ldb);
922 :
923 181387 : return data;
924 : }
925 :
926 :
927 4123038 : static int rootdse_register_control(struct ldb_module *module, struct ldb_request *req)
928 : {
929 138063 : struct rootdse_private_data *priv =
930 4123038 : rootdse_get_private_data(module);
931 138063 : char **list;
932 :
933 4123038 : if (priv == NULL) {
934 0 : return ldb_module_oom(module);
935 : }
936 :
937 4123038 : list = talloc_realloc(priv, priv->controls, char *, priv->num_controls + 1);
938 4123038 : if (!list) {
939 0 : return ldb_oom(ldb_module_get_ctx(module));
940 : }
941 :
942 4123038 : list[priv->num_controls] = talloc_strdup(list, req->op.reg_control.oid);
943 4123038 : if (!list[priv->num_controls]) {
944 0 : return ldb_oom(ldb_module_get_ctx(module));
945 : }
946 :
947 4123038 : priv->num_controls += 1;
948 4123038 : priv->controls = list;
949 :
950 4123038 : return ldb_module_done(req, NULL, NULL, LDB_SUCCESS);
951 : }
952 :
953 868380 : static int rootdse_register_partition(struct ldb_module *module, struct ldb_request *req)
954 : {
955 29811 : struct rootdse_private_data *priv =
956 868380 : rootdse_get_private_data(module);
957 29811 : struct ldb_dn **list;
958 :
959 868380 : if (priv == NULL) {
960 0 : return ldb_module_oom(module);
961 : }
962 :
963 868380 : list = talloc_realloc(priv, priv->partitions, struct ldb_dn *, priv->num_partitions + 1);
964 868380 : if (!list) {
965 0 : return ldb_oom(ldb_module_get_ctx(module));
966 : }
967 :
968 868380 : list[priv->num_partitions] = ldb_dn_copy(list, req->op.reg_partition.dn);
969 868380 : if (!list[priv->num_partitions]) {
970 0 : return ldb_operr(ldb_module_get_ctx(module));
971 : }
972 :
973 868380 : priv->num_partitions += 1;
974 868380 : priv->partitions = list;
975 :
976 868380 : return ldb_module_done(req, NULL, NULL, LDB_SUCCESS);
977 : }
978 :
979 :
980 4991418 : static int rootdse_request(struct ldb_module *module, struct ldb_request *req)
981 : {
982 4991418 : switch (req->operation) {
983 :
984 4123038 : case LDB_REQ_REGISTER_CONTROL:
985 4123038 : return rootdse_register_control(module, req);
986 868380 : case LDB_REQ_REGISTER_PARTITION:
987 868380 : 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 181387 : static int rootdse_init(struct ldb_module *module)
996 : {
997 6040 : int ret;
998 6040 : struct ldb_result *res;
999 181387 : const char *attrs[] = { "msDS-Behavior-Version", NULL };
1000 181387 : const char *ds_attrs[] = { "dsServiceName", NULL };
1001 6040 : TALLOC_CTX *mem_ctx;
1002 :
1003 6040 : struct ldb_context *ldb
1004 181387 : = ldb_module_get_ctx(module);
1005 :
1006 6040 : struct rootdse_private_data *data
1007 181387 : = rootdse_get_private_data(module);
1008 :
1009 181387 : if (data == NULL) {
1010 0 : return ldb_module_oom(module);
1011 : }
1012 :
1013 181387 : ret = ldb_next_init(module);
1014 :
1015 181387 : if (ret != LDB_SUCCESS) {
1016 0 : return ret;
1017 : }
1018 :
1019 181387 : mem_ctx = talloc_new(data);
1020 181387 : 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 181387 : 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 181387 : if (ret == LDB_SUCCESS && res->count == 1) {
1038 6012 : int domain_behaviour_version
1039 181177 : = ldb_msg_find_attr_as_int(res->msgs[0],
1040 : "msDS-Behavior-Version", -1);
1041 181177 : if (domain_behaviour_version != -1) {
1042 181145 : int *val = talloc(ldb, int);
1043 181145 : if (!val) {
1044 0 : talloc_free(mem_ctx);
1045 0 : return ldb_oom(ldb);
1046 : }
1047 181145 : *val = domain_behaviour_version;
1048 181145 : ret = ldb_set_opaque(ldb, "domainFunctionality", val);
1049 181145 : if (ret != LDB_SUCCESS) {
1050 0 : talloc_free(mem_ctx);
1051 0 : return ret;
1052 : }
1053 : }
1054 : }
1055 :
1056 181387 : 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 181387 : if (ret == LDB_SUCCESS && res->count == 1) {
1063 6006 : int forest_behaviour_version
1064 181171 : = ldb_msg_find_attr_as_int(res->msgs[0],
1065 : "msDS-Behavior-Version", -1);
1066 181171 : if (forest_behaviour_version != -1) {
1067 181171 : int *val = talloc(ldb, int);
1068 181171 : if (!val) {
1069 0 : talloc_free(mem_ctx);
1070 0 : return ldb_oom(ldb);
1071 : }
1072 181171 : *val = forest_behaviour_version;
1073 181171 : ret = ldb_set_opaque(ldb, "forestFunctionality", val);
1074 181171 : if (ret != LDB_SUCCESS) {
1075 0 : talloc_free(mem_ctx);
1076 0 : return ret;
1077 : }
1078 : }
1079 : }
1080 :
1081 :
1082 : /*
1083 : * For now, our own server's location in the DB is recorded in
1084 : * the @ROOTDSE record
1085 : *
1086 : * We can't call samdb_ntds_settings_dn() in the rootdse, as
1087 : * that routine used the rootdse result!
1088 : */
1089 181387 : ret = dsdb_module_search(module, mem_ctx, &res,
1090 : ldb_dn_new(mem_ctx, ldb, "@ROOTDSE"),
1091 : LDB_SCOPE_BASE, ds_attrs,
1092 : DSDB_FLAG_NEXT_MODULE |
1093 : DSDB_FLAG_AS_SYSTEM,
1094 : NULL, NULL);
1095 181387 : if (ret == LDB_SUCCESS && res->count == 1) {
1096 6040 : struct ldb_dn *ds_dn
1097 181387 : = ldb_msg_find_attr_as_dn(ldb, mem_ctx, res->msgs[0],
1098 : "dsServiceName");
1099 181387 : if (ds_dn) {
1100 181387 : ret = dsdb_module_search(module, mem_ctx, &res, ds_dn,
1101 : LDB_SCOPE_BASE, attrs,
1102 : DSDB_FLAG_NEXT_MODULE |
1103 : DSDB_FLAG_AS_SYSTEM,
1104 : NULL, NULL);
1105 181387 : if (ret == LDB_SUCCESS && res->count == 1) {
1106 6006 : int domain_controller_behaviour_version
1107 181171 : = ldb_msg_find_attr_as_int(res->msgs[0],
1108 : "msDS-Behavior-Version", -1);
1109 181171 : if (domain_controller_behaviour_version != -1) {
1110 181001 : int *val = talloc(ldb, int);
1111 181001 : if (!val) {
1112 0 : talloc_free(mem_ctx);
1113 0 : return ldb_oom(ldb);
1114 : }
1115 181001 : *val = domain_controller_behaviour_version;
1116 181001 : ret = ldb_set_opaque(ldb,
1117 : "domainControllerFunctionality", val);
1118 181001 : if (ret != LDB_SUCCESS) {
1119 0 : talloc_free(mem_ctx);
1120 0 : return ret;
1121 : }
1122 : }
1123 : }
1124 : }
1125 : }
1126 :
1127 181387 : data->block_anonymous = dsdb_block_anonymous_ops(module, NULL);
1128 :
1129 181387 : talloc_free(mem_ctx);
1130 :
1131 181387 : return LDB_SUCCESS;
1132 : }
1133 :
1134 : /*
1135 : * This function gets the string SCOPE_DN:OPTIONAL_FEATURE_GUID and parse it
1136 : * to a DN and a GUID object
1137 : */
1138 0 : static int get_optional_feature_dn_guid(struct ldb_request *req, struct ldb_context *ldb,
1139 : TALLOC_CTX *mem_ctx,
1140 : struct ldb_dn **op_feature_scope_dn,
1141 : struct GUID *op_feature_guid)
1142 : {
1143 0 : const struct ldb_message *msg = req->op.mod.message;
1144 0 : const char *ldb_val_str;
1145 0 : char *dn, *guid;
1146 0 : TALLOC_CTX *tmp_ctx = talloc_new(mem_ctx);
1147 0 : NTSTATUS status;
1148 :
1149 0 : ldb_val_str = ldb_msg_find_attr_as_string(msg, "enableOptionalFeature", NULL);
1150 0 : if (!ldb_val_str) {
1151 0 : ldb_set_errstring(ldb,
1152 : "rootdse: unable to find 'enableOptionalFeature'!");
1153 0 : return LDB_ERR_UNWILLING_TO_PERFORM;
1154 : }
1155 :
1156 0 : guid = strchr(ldb_val_str, ':');
1157 0 : if (!guid) {
1158 0 : ldb_set_errstring(ldb,
1159 : "rootdse: unable to find GUID in 'enableOptionalFeature'!");
1160 0 : return LDB_ERR_UNWILLING_TO_PERFORM;
1161 : }
1162 0 : status = GUID_from_string(guid+1, op_feature_guid);
1163 0 : if (!NT_STATUS_IS_OK(status)) {
1164 0 : ldb_set_errstring(ldb,
1165 : "rootdse: bad GUID in 'enableOptionalFeature'!");
1166 0 : return LDB_ERR_UNWILLING_TO_PERFORM;
1167 : }
1168 :
1169 0 : dn = talloc_strndup(tmp_ctx, ldb_val_str, guid-ldb_val_str);
1170 0 : if (!dn) {
1171 0 : ldb_set_errstring(ldb,
1172 : "rootdse: bad DN in 'enableOptionalFeature'!");
1173 0 : return LDB_ERR_UNWILLING_TO_PERFORM;
1174 : }
1175 :
1176 0 : *op_feature_scope_dn = ldb_dn_new(mem_ctx, ldb, dn);
1177 :
1178 0 : talloc_free(tmp_ctx);
1179 0 : return LDB_SUCCESS;
1180 : }
1181 :
1182 : /*
1183 : * This function gets the OPTIONAL_FEATURE_GUID and looks for the optional feature
1184 : * ldb_message object.
1185 : */
1186 0 : static int dsdb_find_optional_feature(struct ldb_module *module, struct ldb_context *ldb,
1187 : TALLOC_CTX *mem_ctx, struct GUID op_feature_guid, struct ldb_message **msg,
1188 : struct ldb_request *parent)
1189 : {
1190 0 : struct ldb_result *res;
1191 0 : TALLOC_CTX *tmp_ctx = talloc_new(mem_ctx);
1192 0 : int ret;
1193 :
1194 0 : ret = dsdb_module_search(module, tmp_ctx, &res, NULL, LDB_SCOPE_SUBTREE,
1195 : NULL,
1196 : DSDB_FLAG_NEXT_MODULE |
1197 : DSDB_FLAG_AS_SYSTEM |
1198 : DSDB_SEARCH_SEARCH_ALL_PARTITIONS,
1199 : parent,
1200 : "(&(objectClass=msDS-OptionalFeature)"
1201 : "(msDS-OptionalFeatureGUID=%s))",GUID_string(tmp_ctx, &op_feature_guid));
1202 :
1203 0 : if (ret != LDB_SUCCESS) {
1204 0 : talloc_free(tmp_ctx);
1205 0 : return ret;
1206 : }
1207 0 : if (res->count == 0) {
1208 0 : talloc_free(tmp_ctx);
1209 0 : return LDB_ERR_NO_SUCH_OBJECT;
1210 : }
1211 0 : if (res->count != 1) {
1212 0 : ldb_asprintf_errstring(ldb,
1213 : "More than one object found matching optional feature GUID %s\n",
1214 : GUID_string(tmp_ctx, &op_feature_guid));
1215 0 : talloc_free(tmp_ctx);
1216 0 : return LDB_ERR_OPERATIONS_ERROR;
1217 : }
1218 :
1219 0 : *msg = talloc_steal(mem_ctx, res->msgs[0]);
1220 :
1221 0 : talloc_free(tmp_ctx);
1222 0 : return LDB_SUCCESS;
1223 : }
1224 :
1225 0 : static int rootdse_enable_recycle_bin(struct ldb_module *module,struct ldb_context *ldb,
1226 : TALLOC_CTX *mem_ctx, struct ldb_dn *op_feature_scope_dn,
1227 : struct ldb_message *op_feature_msg, struct ldb_request *parent)
1228 : {
1229 0 : int ret;
1230 0 : const int domain_func_level = dsdb_functional_level(ldb);
1231 0 : struct ldb_dn *ntds_settings_dn;
1232 0 : TALLOC_CTX *tmp_ctx;
1233 0 : unsigned int el_count = 0;
1234 0 : struct ldb_message *msg;
1235 :
1236 0 : ret = ldb_msg_find_attr_as_int(op_feature_msg, "msDS-RequiredForestBehaviorVersion", 0);
1237 0 : if (domain_func_level < ret){
1238 0 : ldb_asprintf_errstring(ldb,
1239 : "rootdse_enable_recycle_bin: Domain functional level must be at least %d\n",
1240 : ret);
1241 0 : return LDB_ERR_UNWILLING_TO_PERFORM;
1242 : }
1243 :
1244 0 : tmp_ctx = talloc_new(mem_ctx);
1245 0 : ntds_settings_dn = samdb_ntds_settings_dn(ldb, tmp_ctx);
1246 0 : if (!ntds_settings_dn) {
1247 0 : talloc_free(tmp_ctx);
1248 0 : return ldb_error(ldb, LDB_ERR_OPERATIONS_ERROR, "Failed to find NTDS settings DN");
1249 : }
1250 :
1251 0 : ntds_settings_dn = ldb_dn_copy(tmp_ctx, ntds_settings_dn);
1252 0 : if (!ntds_settings_dn) {
1253 0 : talloc_free(tmp_ctx);
1254 0 : return ldb_error(ldb, LDB_ERR_OPERATIONS_ERROR, "Failed to copy NTDS settings DN");
1255 : }
1256 :
1257 0 : msg = ldb_msg_new(tmp_ctx);
1258 0 : if (msg == NULL) {
1259 0 : talloc_free(tmp_ctx);
1260 0 : return ldb_module_oom(module);
1261 : }
1262 0 : msg->dn = ntds_settings_dn;
1263 :
1264 0 : ldb_msg_add_linearized_dn(msg, "msDS-EnabledFeature", op_feature_msg->dn);
1265 0 : msg->elements[el_count++].flags = LDB_FLAG_MOD_ADD;
1266 :
1267 0 : ret = dsdb_module_modify(module, msg, DSDB_FLAG_NEXT_MODULE, parent);
1268 0 : if (ret != LDB_SUCCESS) {
1269 0 : ldb_asprintf_errstring(ldb,
1270 : "rootdse_enable_recycle_bin: Failed to modify object %s - %s",
1271 : ldb_dn_get_linearized(ntds_settings_dn),
1272 : ldb_errstring(ldb));
1273 0 : talloc_free(tmp_ctx);
1274 0 : return ret;
1275 : }
1276 :
1277 0 : msg->dn = op_feature_scope_dn;
1278 0 : ret = dsdb_module_modify(module, msg, DSDB_FLAG_NEXT_MODULE, parent);
1279 0 : if (ret != LDB_SUCCESS) {
1280 0 : ldb_asprintf_errstring(ldb,
1281 : "rootdse_enable_recycle_bin: Failed to modify object %s - %s",
1282 : ldb_dn_get_linearized(op_feature_scope_dn),
1283 : ldb_errstring(ldb));
1284 0 : talloc_free(tmp_ctx);
1285 0 : return ret;
1286 : }
1287 :
1288 0 : return LDB_SUCCESS;
1289 : }
1290 :
1291 0 : static int rootdse_enableoptionalfeature(struct ldb_module *module, struct ldb_request *req)
1292 : {
1293 : /*
1294 : steps:
1295 : - check for system (only system can enable features)
1296 : - extract GUID from the request
1297 : - find the feature object
1298 : - check functional level, must be at least msDS-RequiredForestBehaviorVersion
1299 : - check if it is already enabled (if enabled return LDAP_ATTRIBUTE_OR_VALUE_EXISTS) - probably not needed, just return error from the add/modify
1300 : - add/modify objects (see ntdsconnection code for an example)
1301 : */
1302 :
1303 0 : struct ldb_context *ldb = ldb_module_get_ctx(module);
1304 0 : struct GUID op_feature_guid;
1305 0 : struct ldb_dn *op_feature_scope_dn;
1306 0 : struct ldb_message *op_feature_msg;
1307 0 : struct auth_session_info *session_info =
1308 0 : (struct auth_session_info *)ldb_get_opaque(
1309 : ldb,
1310 : DSDB_SESSION_INFO);
1311 0 : TALLOC_CTX *tmp_ctx = talloc_new(ldb);
1312 0 : int ret;
1313 0 : const char *guid_string;
1314 :
1315 0 : if (security_session_user_level(session_info, NULL) != SECURITY_SYSTEM) {
1316 0 : ldb_set_errstring(ldb, "rootdse: Insufficient rights for enableoptionalfeature");
1317 0 : return LDB_ERR_UNWILLING_TO_PERFORM;
1318 : }
1319 :
1320 0 : ret = get_optional_feature_dn_guid(req, ldb, tmp_ctx, &op_feature_scope_dn, &op_feature_guid);
1321 0 : if (ret != LDB_SUCCESS) {
1322 0 : talloc_free(tmp_ctx);
1323 0 : return ret;
1324 : }
1325 :
1326 0 : guid_string = GUID_string(tmp_ctx, &op_feature_guid);
1327 0 : if (!guid_string) {
1328 0 : ldb_set_errstring(ldb, "rootdse: bad optional feature GUID");
1329 0 : return LDB_ERR_UNWILLING_TO_PERFORM;
1330 : }
1331 :
1332 0 : ret = dsdb_find_optional_feature(module, ldb, tmp_ctx, op_feature_guid, &op_feature_msg, req);
1333 0 : if (ret != LDB_SUCCESS) {
1334 0 : ldb_asprintf_errstring(ldb,
1335 : "rootdse: unable to find optional feature for %s - %s",
1336 : guid_string, ldb_errstring(ldb));
1337 0 : talloc_free(tmp_ctx);
1338 0 : return ret;
1339 : }
1340 :
1341 0 : if (strcasecmp(DS_GUID_FEATURE_RECYCLE_BIN, guid_string) == 0) {
1342 0 : ret = rootdse_enable_recycle_bin(module, ldb,
1343 : tmp_ctx, op_feature_scope_dn,
1344 : op_feature_msg, req);
1345 : } else {
1346 0 : ldb_asprintf_errstring(ldb,
1347 : "rootdse: unknown optional feature %s",
1348 : guid_string);
1349 0 : talloc_free(tmp_ctx);
1350 0 : return LDB_ERR_UNWILLING_TO_PERFORM;
1351 : }
1352 0 : if (ret != LDB_SUCCESS) {
1353 0 : ldb_asprintf_errstring(ldb,
1354 : "rootdse: failed to set optional feature for %s - %s",
1355 : guid_string, ldb_errstring(ldb));
1356 0 : talloc_free(tmp_ctx);
1357 0 : return ret;
1358 : }
1359 :
1360 0 : talloc_free(tmp_ctx);
1361 0 : return ldb_module_done(req, NULL, NULL, LDB_SUCCESS);;
1362 : }
1363 :
1364 761 : static int rootdse_schemaupdatenow(struct ldb_module *module, struct ldb_request *req)
1365 : {
1366 761 : struct ldb_context *ldb = ldb_module_get_ctx(module);
1367 0 : struct ldb_result *ext_res;
1368 0 : int ret;
1369 0 : struct ldb_dn *schema_dn;
1370 :
1371 761 : schema_dn = ldb_get_schema_basedn(ldb);
1372 761 : if (!schema_dn) {
1373 0 : ldb_reset_err_string(ldb);
1374 0 : ldb_debug(ldb, LDB_DEBUG_WARNING,
1375 : "rootdse_modify: no schema dn present: (skip ldb_extended call)\n");
1376 0 : return ldb_next_request(module, req);
1377 : }
1378 :
1379 : /*
1380 : * schemaUpdateNow has been requested. Allow this to refresh the schema
1381 : * even if we're currently in the middle of a transaction
1382 : */
1383 761 : ret = ldb_set_opaque(ldb, "dsdb_schema_refresh_expected", (void *)1);
1384 761 : if (ret != LDB_SUCCESS) {
1385 0 : return ldb_operr(ldb);
1386 : }
1387 :
1388 761 : ret = ldb_extended(ldb, DSDB_EXTENDED_SCHEMA_UPDATE_NOW_OID, schema_dn, &ext_res);
1389 761 : if (ret != LDB_SUCCESS) {
1390 0 : ldb_set_opaque(ldb, "dsdb_schema_refresh_expected", (void *)0);
1391 0 : return ldb_operr(ldb);
1392 : }
1393 :
1394 761 : talloc_free(ext_res);
1395 :
1396 761 : ret = ldb_set_opaque(ldb, "dsdb_schema_refresh_expected", (void *)0);
1397 761 : if (ret != LDB_SUCCESS) {
1398 0 : return ldb_operr(ldb);
1399 : }
1400 :
1401 761 : return ldb_module_done(req, NULL, NULL, ret);
1402 : }
1403 :
1404 36 : static int rootdse_schemaupgradeinprogress(struct ldb_module *module, struct ldb_request *req)
1405 : {
1406 36 : struct ldb_context *ldb = ldb_module_get_ctx(module);
1407 36 : int ret = LDB_SUCCESS;
1408 0 : struct ldb_dn *schema_dn;
1409 :
1410 36 : schema_dn = ldb_get_schema_basedn(ldb);
1411 36 : if (!schema_dn) {
1412 0 : ldb_reset_err_string(ldb);
1413 0 : ldb_debug(ldb, LDB_DEBUG_WARNING,
1414 : "rootdse_modify: no schema dn present: (skip ldb_extended call)\n");
1415 0 : return ldb_next_request(module, req);
1416 : }
1417 :
1418 : /* FIXME we have to do something in order to relax constraints for DRS
1419 : * setting schemaUpgradeInProgress cause the fschemaUpgradeInProgress
1420 : * in all LDAP connection (2K3/2K3R2) or in the current connection (2K8 and +)
1421 : * to be set to true.
1422 : */
1423 :
1424 : /* from 5.113 LDAPConnections in DRSR.pdf
1425 : * fschemaUpgradeInProgress: A Boolean that specifies certain constraint
1426 : * validations are skipped when adding, updating, or removing directory
1427 : * objects on the opened connection. The skipped constraint validations
1428 : * are documented in the applicable constraint sections in [MS-ADTS].
1429 : */
1430 36 : return ldb_module_done(req, NULL, NULL, ret);
1431 : }
1432 :
1433 543318 : static int rootdse_add(struct ldb_module *module, struct ldb_request *req)
1434 : {
1435 543318 : struct ldb_context *ldb = ldb_module_get_ctx(module);
1436 83666 : int ret;
1437 :
1438 543318 : ret = rootdse_filter_operations(module, req);
1439 543318 : if (ret != LDB_SUCCESS) {
1440 9 : return ret;
1441 : }
1442 :
1443 543309 : ret = rootdse_filter_controls(module, req);
1444 543309 : if (ret != LDB_SUCCESS) {
1445 0 : return ret;
1446 : }
1447 :
1448 : /*
1449 : If dn is not "" we should let it pass through
1450 : */
1451 543309 : if (!ldb_dn_is_null(req->op.add.message->dn)) {
1452 543308 : return ldb_next_request(module, req);
1453 : }
1454 :
1455 1 : ldb_set_errstring(ldb, "rootdse_add: you cannot add a new rootdse entry!");
1456 1 : return LDB_ERR_NAMING_VIOLATION;
1457 : }
1458 :
1459 349057 : static int rootdse_start_trans(struct ldb_module *module)
1460 : {
1461 2209 : int ret;
1462 349057 : struct ldb_context *ldb = ldb_module_get_ctx(module);
1463 349057 : struct rootdse_private_data *data = talloc_get_type_abort(ldb_module_get_private(module),
1464 : struct rootdse_private_data);
1465 349057 : ret = ldb_next_start_trans(module);
1466 349057 : if (ret == LDB_SUCCESS) {
1467 349057 : if (data->private_ev != NULL) {
1468 0 : return ldb_operr(ldb);
1469 : }
1470 349057 : data->private_ev = s4_event_context_init(data);
1471 349057 : if (data->private_ev == NULL) {
1472 0 : return ldb_operr(ldb);
1473 : }
1474 349057 : data->saved_ev = ldb_get_event_context(ldb);
1475 349057 : ldb_set_event_context(ldb, data->private_ev);
1476 : }
1477 346848 : return ret;
1478 : }
1479 :
1480 304112 : static int rootdse_end_trans(struct ldb_module *module)
1481 : {
1482 2204 : int ret;
1483 304112 : struct ldb_context *ldb = ldb_module_get_ctx(module);
1484 304112 : struct rootdse_private_data *data = talloc_get_type_abort(ldb_module_get_private(module),
1485 : struct rootdse_private_data);
1486 304112 : ret = ldb_next_end_trans(module);
1487 304112 : if (data->saved_ev == NULL) {
1488 0 : return ldb_operr(ldb);
1489 : }
1490 :
1491 304112 : if (data->private_ev != ldb_get_event_context(ldb)) {
1492 0 : return ldb_operr(ldb);
1493 : }
1494 304112 : ldb_set_event_context(ldb, data->saved_ev);
1495 304112 : data->saved_ev = NULL;
1496 304112 : TALLOC_FREE(data->private_ev);
1497 301908 : return ret;
1498 : }
1499 :
1500 44943 : static int rootdse_del_trans(struct ldb_module *module)
1501 : {
1502 4 : int ret;
1503 44943 : struct ldb_context *ldb = ldb_module_get_ctx(module);
1504 44943 : struct rootdse_private_data *data = talloc_get_type_abort(ldb_module_get_private(module),
1505 : struct rootdse_private_data);
1506 44943 : ret = ldb_next_del_trans(module);
1507 44943 : if (data->saved_ev == NULL) {
1508 0 : return ldb_operr(ldb);
1509 : }
1510 :
1511 44943 : if (data->private_ev != ldb_get_event_context(ldb)) {
1512 0 : return ldb_operr(ldb);
1513 : }
1514 44943 : ldb_set_event_context(ldb, data->saved_ev);
1515 44943 : data->saved_ev = NULL;
1516 44943 : TALLOC_FREE(data->private_ev);
1517 44939 : return ret;
1518 : }
1519 :
1520 : struct fsmo_transfer_state {
1521 : struct ldb_context *ldb;
1522 : struct ldb_request *req;
1523 : struct ldb_module *module;
1524 : };
1525 :
1526 : /*
1527 : called when a FSMO transfer operation has completed
1528 : */
1529 22 : static void rootdse_fsmo_transfer_callback(struct tevent_req *treq)
1530 : {
1531 22 : struct fsmo_transfer_state *fsmo = tevent_req_callback_data(treq, struct fsmo_transfer_state);
1532 0 : NTSTATUS status;
1533 0 : WERROR werr;
1534 0 : int ret;
1535 22 : struct ldb_request *req = fsmo->req;
1536 22 : struct ldb_context *ldb = fsmo->ldb;
1537 22 : struct ldb_module *module = fsmo->module;
1538 :
1539 22 : status = dcerpc_drepl_takeFSMORole_recv(treq, fsmo, &werr);
1540 22 : talloc_free(fsmo);
1541 22 : if (!NT_STATUS_IS_OK(status)) {
1542 0 : ldb_asprintf_errstring(ldb, "Failed FSMO transfer: %s", nt_errstr(status));
1543 : /*
1544 : * Now that it is failed, start the transaction up
1545 : * again so the wrappers can close it without additional error
1546 : */
1547 0 : rootdse_start_trans(module);
1548 0 : ldb_module_done(req, NULL, NULL, LDB_ERR_UNAVAILABLE);
1549 0 : return;
1550 : }
1551 22 : if (!W_ERROR_IS_OK(werr)) {
1552 0 : ldb_asprintf_errstring(ldb, "Failed FSMO transfer: %s", win_errstr(werr));
1553 : /*
1554 : * Now that it is failed, start the transaction up
1555 : * again so the wrappers can close it without additional error
1556 : */
1557 0 : rootdse_start_trans(module);
1558 0 : ldb_module_done(req, NULL, NULL, LDB_ERR_UNAVAILABLE);
1559 0 : return;
1560 : }
1561 :
1562 : /*
1563 : * Now that it is done, start the transaction up again so the
1564 : * wrappers can close it without error
1565 : */
1566 22 : ret = rootdse_start_trans(module);
1567 22 : ldb_module_done(req, NULL, NULL, ret);
1568 : }
1569 :
1570 22 : static int rootdse_become_master(struct ldb_module *module,
1571 : struct ldb_request *req,
1572 : enum drepl_role_master role)
1573 : {
1574 0 : struct imessaging_context *msg;
1575 22 : struct ldb_context *ldb = ldb_module_get_ctx(module);
1576 22 : TALLOC_CTX *tmp_ctx = talloc_new(req);
1577 22 : struct loadparm_context *lp_ctx = ldb_get_opaque(ldb, "loadparm");
1578 0 : bool am_rodc;
1579 0 : struct dcerpc_binding_handle *irpc_handle;
1580 0 : int ret;
1581 0 : struct auth_session_info *session_info;
1582 0 : enum security_user_level level;
1583 0 : struct fsmo_transfer_state *fsmo;
1584 0 : struct tevent_req *treq;
1585 :
1586 22 : session_info = (struct auth_session_info *)ldb_get_opaque(
1587 : ldb_module_get_ctx(module),
1588 : DSDB_SESSION_INFO);
1589 22 : level = security_session_user_level(session_info, NULL);
1590 22 : if (level < SECURITY_ADMINISTRATOR) {
1591 0 : return ldb_error(ldb, LDB_ERR_INSUFFICIENT_ACCESS_RIGHTS, "Denied rootDSE modify for non-administrator");
1592 : }
1593 :
1594 22 : ret = samdb_rodc(ldb, &am_rodc);
1595 22 : if (ret != LDB_SUCCESS) {
1596 0 : return ldb_error(ldb, ret, "Could not determine if server is RODC.");
1597 : }
1598 :
1599 22 : if (am_rodc) {
1600 0 : return ldb_error(ldb, LDB_ERR_UNWILLING_TO_PERFORM,
1601 : "RODC cannot become a role master.");
1602 : }
1603 :
1604 : /*
1605 : * We always delete the transaction, not commit it, because
1606 : * this gives the least surprise to this surprising action (as
1607 : * we will never record anything done to this point
1608 : */
1609 22 : rootdse_del_trans(module);
1610 :
1611 : /*
1612 : * We must use the global event loop to run this IRPC in
1613 : * single process mode
1614 : */
1615 22 : ldb_handle_use_global_event_context(req->handle);
1616 :
1617 22 : msg = imessaging_client_init(tmp_ctx, lp_ctx,
1618 : ldb_get_event_context(ldb));
1619 22 : if (!msg) {
1620 0 : ldb_asprintf_errstring(ldb, "Failed to generate client messaging context in %s", lpcfg_imessaging_path(tmp_ctx, lp_ctx));
1621 0 : return LDB_ERR_OPERATIONS_ERROR;
1622 : }
1623 22 : irpc_handle = irpc_binding_handle_by_name(tmp_ctx, msg,
1624 : "dreplsrv",
1625 : &ndr_table_irpc);
1626 22 : if (irpc_handle == NULL) {
1627 0 : return ldb_oom(ldb);
1628 : }
1629 22 : fsmo = talloc_zero(req, struct fsmo_transfer_state);
1630 22 : if (fsmo == NULL) {
1631 0 : return ldb_oom(ldb);
1632 : }
1633 22 : fsmo->ldb = ldb;
1634 22 : fsmo->req = req;
1635 22 : fsmo->module = module;
1636 :
1637 : /*
1638 : * we send the call asynchronously, as the ldap client is
1639 : * expecting to get an error back if the role transfer fails
1640 : *
1641 : * We need more than the default 10 seconds IRPC allows, so
1642 : * set a longer timeout (default ldb timeout is 300 seconds).
1643 : * We send an async reply when we are done.
1644 : *
1645 : * We are the first module, so don't bother working out how
1646 : * long we have spent so far.
1647 : */
1648 22 : dcerpc_binding_handle_set_timeout(irpc_handle, req->timeout);
1649 :
1650 22 : treq = dcerpc_drepl_takeFSMORole_send(req, ldb_get_event_context(ldb), irpc_handle, role);
1651 22 : if (treq == NULL) {
1652 0 : return ldb_oom(ldb);
1653 : }
1654 :
1655 22 : tevent_req_set_callback(treq, rootdse_fsmo_transfer_callback, fsmo);
1656 22 : return LDB_SUCCESS;
1657 : }
1658 :
1659 323035 : static int rootdse_modify(struct ldb_module *module, struct ldb_request *req)
1660 : {
1661 323035 : struct ldb_context *ldb = ldb_module_get_ctx(module);
1662 17229 : int ret;
1663 :
1664 323035 : ret = rootdse_filter_operations(module, req);
1665 323035 : if (ret != LDB_SUCCESS) {
1666 9 : return ret;
1667 : }
1668 :
1669 323026 : ret = rootdse_filter_controls(module, req);
1670 323026 : if (ret != LDB_SUCCESS) {
1671 0 : return ret;
1672 : }
1673 :
1674 : /*
1675 : If dn is not "" we should let it pass through
1676 : */
1677 323026 : if (!ldb_dn_is_null(req->op.mod.message->dn)) {
1678 322204 : return ldb_next_request(module, req);
1679 : }
1680 :
1681 : /*
1682 : dn is empty so check for schemaUpdateNow attribute
1683 : "The type of modification and values specified in the LDAP modify operation do not matter." MSDN
1684 : */
1685 822 : if (ldb_msg_find_element(req->op.mod.message, "schemaUpdateNow")) {
1686 761 : return rootdse_schemaupdatenow(module, req);
1687 : }
1688 61 : if (ldb_msg_find_element(req->op.mod.message, "becomeDomainMaster")) {
1689 4 : return rootdse_become_master(module, req, DREPL_NAMING_MASTER);
1690 : }
1691 57 : if (ldb_msg_find_element(req->op.mod.message, "becomeInfrastructureMaster")) {
1692 4 : return rootdse_become_master(module, req, DREPL_INFRASTRUCTURE_MASTER);
1693 : }
1694 53 : if (ldb_msg_find_element(req->op.mod.message, "becomeRidMaster")) {
1695 6 : return rootdse_become_master(module, req, DREPL_RID_MASTER);
1696 : }
1697 47 : if (ldb_msg_find_element(req->op.mod.message, "becomeSchemaMaster")) {
1698 4 : return rootdse_become_master(module, req, DREPL_SCHEMA_MASTER);
1699 : }
1700 43 : if (ldb_msg_find_element(req->op.mod.message, "becomePdc")) {
1701 4 : return rootdse_become_master(module, req, DREPL_PDC_MASTER);
1702 : }
1703 39 : if (ldb_msg_find_element(req->op.mod.message, "enableOptionalFeature")) {
1704 0 : return rootdse_enableoptionalfeature(module, req);
1705 : }
1706 39 : if (ldb_msg_find_element(req->op.mod.message, "schemaUpgradeInProgress")) {
1707 36 : return rootdse_schemaupgradeinprogress(module, req);
1708 : }
1709 :
1710 3 : ldb_set_errstring(ldb, "rootdse_modify: unknown attribute to change!");
1711 3 : return LDB_ERR_UNWILLING_TO_PERFORM;
1712 : }
1713 :
1714 1284 : static int rootdse_rename(struct ldb_module *module, struct ldb_request *req)
1715 : {
1716 1284 : struct ldb_context *ldb = ldb_module_get_ctx(module);
1717 9 : int ret;
1718 :
1719 1284 : ret = rootdse_filter_operations(module, req);
1720 1284 : if (ret != LDB_SUCCESS) {
1721 0 : return ret;
1722 : }
1723 :
1724 1284 : ret = rootdse_filter_controls(module, req);
1725 1284 : if (ret != LDB_SUCCESS) {
1726 0 : return ret;
1727 : }
1728 :
1729 : /*
1730 : If dn is not "" we should let it pass through
1731 : */
1732 1284 : if (!ldb_dn_is_null(req->op.rename.olddn)) {
1733 1284 : return ldb_next_request(module, req);
1734 : }
1735 :
1736 0 : ldb_set_errstring(ldb, "rootdse_remove: you cannot rename the rootdse entry!");
1737 0 : return LDB_ERR_NO_SUCH_OBJECT;
1738 : }
1739 :
1740 110238 : static int rootdse_delete(struct ldb_module *module, struct ldb_request *req)
1741 : {
1742 110238 : struct ldb_context *ldb = ldb_module_get_ctx(module);
1743 171 : int ret;
1744 :
1745 110238 : ret = rootdse_filter_operations(module, req);
1746 110238 : if (ret != LDB_SUCCESS) {
1747 9 : return ret;
1748 : }
1749 :
1750 110229 : ret = rootdse_filter_controls(module, req);
1751 110229 : if (ret != LDB_SUCCESS) {
1752 0 : return ret;
1753 : }
1754 :
1755 : /*
1756 : If dn is not "" we should let it pass through
1757 : */
1758 110229 : if (!ldb_dn_is_null(req->op.del.dn)) {
1759 110228 : return ldb_next_request(module, req);
1760 : }
1761 :
1762 1 : ldb_set_errstring(ldb, "rootdse_remove: you cannot delete the rootdse entry!");
1763 1 : return LDB_ERR_NO_SUCH_OBJECT;
1764 : }
1765 :
1766 1649105 : static int rootdse_extended(struct ldb_module *module, struct ldb_request *req)
1767 : {
1768 95843 : int ret;
1769 :
1770 1649105 : ret = rootdse_filter_operations(module, req);
1771 1649105 : if (ret != LDB_SUCCESS) {
1772 0 : return ret;
1773 : }
1774 :
1775 1649105 : ret = rootdse_filter_controls(module, req);
1776 1649105 : if (ret != LDB_SUCCESS) {
1777 0 : return ret;
1778 : }
1779 :
1780 1649105 : return ldb_next_request(module, req);
1781 : }
1782 :
1783 : static const struct ldb_module_ops ldb_rootdse_module_ops = {
1784 : .name = "rootdse",
1785 : .init_context = rootdse_init,
1786 : .search = rootdse_search,
1787 : .request = rootdse_request,
1788 : .add = rootdse_add,
1789 : .modify = rootdse_modify,
1790 : .rename = rootdse_rename,
1791 : .extended = rootdse_extended,
1792 : .del = rootdse_delete,
1793 : .start_transaction = rootdse_start_trans,
1794 : .end_transaction = rootdse_end_trans,
1795 : .del_transaction = rootdse_del_trans
1796 : };
1797 :
1798 5903 : int ldb_rootdse_module_init(const char *version)
1799 : {
1800 5903 : LDB_MODULE_CHECK_VERSION(version);
1801 5903 : return ldb_register_module(&ldb_rootdse_module_ops);
1802 : }
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