4 Copyright (C) Simo Sorce 2006-2008
5 Copyright (C) Andrew Bartlett <abartlet@samba.org> 2005-2009
6 Copyright (C) Matthias Dieter Wallnöfer 2010
8 This program is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 3 of the License, or
11 (at your option) any later version.
13 This program is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with this program. If not, see <http://www.gnu.org/licenses/>.
25 * Component: objectClass sorting and constraint checking module
28 * - sort the objectClass attribute into the class
29 * hierarchy and perform constraint checks (correct RDN name,
31 * - fix DNs into 'standard' case
32 * - Add objectCategory and some other attribute defaults
34 * Author: Andrew Bartlett
39 #include "ldb_module.h"
40 #include "util/dlinklist.h"
41 #include "dsdb/samdb/samdb.h"
42 #include "librpc/ndr/libndr.h"
43 #include "librpc/gen_ndr/ndr_security.h"
44 #include "libcli/security/security.h"
45 #include "auth/auth.h"
46 #include "param/param.h"
47 #include "../libds/common/flags.h"
48 #include "dsdb/samdb/ldb_modules/schema.h"
53 struct ldb_module *module;
54 struct ldb_request *req;
55 const struct dsdb_schema *schema;
57 struct ldb_reply *search_res;
58 struct ldb_reply *search_res2;
60 int (*step_fn)(struct oc_context *);
64 struct class_list *prev, *next;
65 const struct dsdb_class *objectclass;
68 static struct oc_context *oc_init_context(struct ldb_module *module,
69 struct ldb_request *req)
71 struct ldb_context *ldb;
72 struct oc_context *ac;
74 ldb = ldb_module_get_ctx(module);
76 ac = talloc_zero(req, struct oc_context);
84 ac->schema = dsdb_get_schema(ldb, ac);
89 static int objectclass_do_add(struct oc_context *ac);
91 /* Sort objectClasses into correct order, and validate that all
92 * objectClasses specified actually exist in the schema
95 static int objectclass_sort(struct ldb_module *module,
96 const struct dsdb_schema *schema,
98 struct ldb_message_element *objectclass_element,
99 struct class_list **sorted_out)
101 struct ldb_context *ldb;
102 unsigned int i, lowest;
103 struct class_list *unsorted = NULL, *sorted = NULL, *current = NULL, *poss_parent = NULL, *new_parent = NULL, *current_lowest = NULL;
105 ldb = ldb_module_get_ctx(module);
109 * We work on 4 different 'bins' (implemented here as linked lists):
111 * * sorted: the eventual list, in the order we wish to push
112 * into the database. This is the only ordered list.
114 * * parent_class: The current parent class 'bin' we are
115 * trying to find subclasses for
117 * * subclass: The subclasses we have found so far
119 * * unsorted: The remaining objectClasses
121 * The process is a matter of filtering objectClasses up from
122 * unsorted into sorted. Order is irrelevent in the later 3 'bins'.
124 * We start with 'top' (found and promoted to parent_class
125 * initially). Then we find (in unsorted) all the direct
126 * subclasses of 'top'. parent_classes is concatenated onto
127 * the end of 'sorted', and subclass becomes the list in
130 * We then repeat, until we find no more subclasses. Any left
131 * over classes are added to the end.
135 /* Firstly, dump all the objectClass elements into the
136 * unsorted bin, except for 'top', which is special */
137 for (i=0; i < objectclass_element->num_values; i++) {
138 current = talloc(mem_ctx, struct class_list);
142 current->objectclass = dsdb_class_by_lDAPDisplayName_ldb_val(schema, &objectclass_element->values[i]);
143 if (!current->objectclass) {
144 ldb_asprintf_errstring(ldb, "objectclass %.*s is not a valid objectClass in schema",
145 (int)objectclass_element->values[i].length, (const char *)objectclass_element->values[i].data);
146 /* This looks weird, but windows apparently returns this for invalid objectClass values */
147 return LDB_ERR_NO_SUCH_ATTRIBUTE;
148 } else if (current->objectclass->isDefunct) {
149 ldb_asprintf_errstring(ldb, "objectclass %.*s marked as isDefunct objectClass in schema - not valid for new objects",
150 (int)objectclass_element->values[i].length, (const char *)objectclass_element->values[i].data);
151 /* This looks weird, but windows apparently returns this for invalid objectClass values */
152 return LDB_ERR_NO_SUCH_ATTRIBUTE;
155 /* Don't add top to list, we will do that later */
156 if (ldb_attr_cmp("top", current->objectclass->lDAPDisplayName) != 0) {
157 DLIST_ADD_END(unsorted, current, struct class_list *);
161 /* Add top here, to prevent duplicates */
162 current = talloc(mem_ctx, struct class_list);
163 current->objectclass = dsdb_class_by_lDAPDisplayName(schema, "top");
164 DLIST_ADD_END(sorted, current, struct class_list *);
167 /* For each object: find parent chain */
168 for (current = unsorted; schema && current; current = current->next) {
169 for (poss_parent = unsorted; poss_parent; poss_parent = poss_parent->next) {
170 if (ldb_attr_cmp(poss_parent->objectclass->lDAPDisplayName, current->objectclass->subClassOf) == 0) {
174 /* If we didn't get to the end of the list, we need to add this parent */
175 if (poss_parent || (ldb_attr_cmp("top", current->objectclass->subClassOf) == 0)) {
179 new_parent = talloc(mem_ctx, struct class_list);
180 new_parent->objectclass = dsdb_class_by_lDAPDisplayName(schema, current->objectclass->subClassOf);
181 DLIST_ADD_END(unsorted, new_parent, struct class_list *);
187 current_lowest = NULL;
188 for (current = unsorted; schema && current; current = current->next) {
189 if(current->objectclass->subClass_order < lowest) {
190 current_lowest = current;
191 lowest = current->objectclass->subClass_order;
195 if(current_lowest != NULL) {
196 DLIST_REMOVE(unsorted,current_lowest);
197 DLIST_ADD_END(sorted,current_lowest, struct class_list *);
203 *sorted_out = sorted;
208 /* If we don't have schema yet, then just merge the lists again */
209 DLIST_CONCATENATE(sorted, unsorted, struct class_list *);
210 *sorted_out = sorted;
214 /* This shouldn't happen, and would break MMC, perhaps there
215 * was no 'top', a conflict in the objectClasses or some other
218 ldb_asprintf_errstring(ldb, "objectclass %s is not a valid objectClass in objectClass chain", unsorted->objectclass->lDAPDisplayName);
219 return LDB_ERR_OBJECT_CLASS_VIOLATION;
222 static int get_search_callback(struct ldb_request *req, struct ldb_reply *ares)
224 struct ldb_context *ldb;
225 struct oc_context *ac;
228 ac = talloc_get_type(req->context, struct oc_context);
229 ldb = ldb_module_get_ctx(ac->module);
232 return ldb_module_done(ac->req, NULL, NULL,
233 LDB_ERR_OPERATIONS_ERROR);
235 if (ares->error != LDB_SUCCESS &&
236 ares->error != LDB_ERR_NO_SUCH_OBJECT) {
237 return ldb_module_done(ac->req, ares->controls,
238 ares->response, ares->error);
241 ldb_reset_err_string(ldb);
243 switch (ares->type) {
244 case LDB_REPLY_ENTRY:
245 if (ac->search_res != NULL) {
246 ldb_set_errstring(ldb, "Too many results");
248 return ldb_module_done(ac->req, NULL, NULL,
249 LDB_ERR_OPERATIONS_ERROR);
252 ac->search_res = talloc_steal(ac, ares);
255 case LDB_REPLY_REFERRAL:
262 ret = ac->step_fn(ac);
263 if (ret != LDB_SUCCESS) {
264 return ldb_module_done(ac->req, NULL, NULL, ret);
272 static int oc_op_callback(struct ldb_request *req, struct ldb_reply *ares)
274 struct oc_context *ac;
276 ac = talloc_get_type(req->context, struct oc_context);
279 return ldb_module_done(ac->req, NULL, NULL,
280 LDB_ERR_OPERATIONS_ERROR);
283 if (ares->type == LDB_REPLY_REFERRAL) {
284 return ldb_module_send_referral(ac->req, ares->referral);
287 if (ares->error != LDB_SUCCESS) {
288 return ldb_module_done(ac->req, ares->controls,
289 ares->response, ares->error);
292 if (ares->type != LDB_REPLY_DONE) {
294 return ldb_module_done(ac->req, NULL, NULL,
295 LDB_ERR_OPERATIONS_ERROR);
298 return ldb_module_done(ac->req, ares->controls,
299 ares->response, ares->error);
302 /* Fix up the DN to be in the standard form, taking particular care to match the parent DN
304 This should mean that if the parent is:
305 CN=Users,DC=samba,DC=example,DC=com
306 and a proposed child is
307 cn=Admins ,cn=USERS,dc=Samba,dc=example,dc=COM
309 The resulting DN should be:
311 CN=Admins,CN=Users,DC=samba,DC=example,DC=com
314 static int fix_dn(struct ldb_context *ldb,
316 struct ldb_dn *newdn, struct ldb_dn *parent_dn,
317 struct ldb_dn **fixed_dn)
319 char *upper_rdn_attr;
320 const struct ldb_val *rdn_val;
322 /* Fix up the DN to be in the standard form, taking particular care to match the parent DN */
323 *fixed_dn = ldb_dn_copy(mem_ctx, parent_dn);
325 /* We need the attribute name in upper case */
326 upper_rdn_attr = strupper_talloc(*fixed_dn,
327 ldb_dn_get_rdn_name(newdn));
328 if (!upper_rdn_attr) {
329 return ldb_operr(ldb);
332 /* Create a new child */
333 if (ldb_dn_add_child_fmt(*fixed_dn, "X=X") == false) {
334 return ldb_operr(ldb);
337 rdn_val = ldb_dn_get_rdn_val(newdn);
338 if (rdn_val == NULL) {
339 return ldb_operr(ldb);
343 /* the rules for rDN length constraints are more complex than
344 this. Until we understand them we need to leave this
345 constraint out. Otherwise we break replication, as windows
346 does sometimes send us rDNs longer than 64 */
347 if (!rdn_val || rdn_val->length > 64) {
348 DEBUG(2,(__location__ ": WARNING: rDN longer than 64 limit for '%s'\n", ldb_dn_get_linearized(newdn)));
353 /* And replace it with CN=foo (we need the attribute in upper case */
354 return ldb_dn_set_component(*fixed_dn, 0, upper_rdn_attr, *rdn_val);
358 static int objectclass_do_add(struct oc_context *ac);
360 static int objectclass_add(struct ldb_module *module, struct ldb_request *req)
362 struct ldb_context *ldb;
363 struct ldb_request *search_req;
364 struct oc_context *ac;
365 struct ldb_dn *parent_dn;
366 const struct ldb_val *val;
369 static const char * const parent_attrs[] = { "objectClass", NULL };
371 ldb = ldb_module_get_ctx(module);
373 ldb_debug(ldb, LDB_DEBUG_TRACE, "objectclass_add\n");
375 /* do not manipulate our control entries */
376 if (ldb_dn_is_special(req->op.add.message->dn)) {
377 return ldb_next_request(module, req);
380 /* An add operation on the basedn without "NC-add" operation isn't
382 if (ldb_dn_compare(ldb_get_default_basedn(ldb), req->op.add.message->dn) == 0) {
383 unsigned int instanceType;
385 instanceType = ldb_msg_find_attr_as_uint(req->op.add.message,
387 if (!(instanceType & INSTANCE_TYPE_IS_NC_HEAD)) {
388 /* When we are trying to readd the root basedn then
389 * this is denied, but with an interesting mechanism:
390 * there is generated a referral with the last
391 * component value as hostname. */
392 val = ldb_dn_get_component_val(req->op.add.message->dn,
393 ldb_dn_get_comp_num(req->op.add.message->dn) - 1);
395 return ldb_operr(ldb);
397 value = talloc_asprintf(req, "ldap://%s/%s", val->data,
398 ldb_dn_get_linearized(req->op.add.message->dn));
403 return ldb_module_send_referral(req, value);
407 ac = oc_init_context(module, req);
409 return ldb_operr(ldb);
412 /* If there isn't a parent, just go on to the add processing */
413 if (ldb_dn_get_comp_num(ac->req->op.add.message->dn) == 1) {
414 return objectclass_do_add(ac);
417 /* get copy of parent DN */
418 parent_dn = ldb_dn_get_parent(ac, ac->req->op.add.message->dn);
419 if (parent_dn == NULL) {
423 ret = ldb_build_search_req(&search_req, ldb,
424 ac, parent_dn, LDB_SCOPE_BASE,
425 "(objectClass=*)", parent_attrs,
427 ac, get_search_callback,
429 LDB_REQ_SET_LOCATION(search_req);
430 if (ret != LDB_SUCCESS) {
434 ac->step_fn = objectclass_do_add;
436 return ldb_next_request(ac->module, search_req);
441 check if this is a special RODC nTDSDSA add
443 static bool check_rodc_ntdsdsa_add(struct oc_context *ac,
444 const struct dsdb_class *objectclass)
446 struct ldb_control *rodc_control;
448 if (strcasecmp(objectclass->lDAPDisplayName, "nTDSDSA") != 0) {
451 rodc_control = ldb_request_get_control(ac->req, LDB_CONTROL_RODC_DCPROMO_OID);
456 rodc_control->critical = false;
460 static int objectclass_do_add(struct oc_context *ac)
462 struct ldb_context *ldb;
463 struct ldb_request *add_req;
464 struct ldb_message_element *objectclass_element, *el;
465 struct ldb_message *msg;
467 struct class_list *sorted, *current;
468 const char *rdn_name = NULL;
470 const struct dsdb_class *objectclass;
471 struct ldb_dn *objectcategory;
472 int32_t systemFlags = 0;
477 ldb = ldb_module_get_ctx(ac->module);
479 msg = ldb_msg_copy_shallow(ac, ac->req->op.add.message);
481 /* Check if we have a valid parent - this check is needed since
482 * we don't get a LDB_ERR_NO_SUCH_OBJECT error. */
483 if (ac->search_res == NULL) {
484 unsigned int instanceType;
486 /* An add operation on partition DNs without "NC-add" operation
488 instanceType = ldb_msg_find_attr_as_uint(ac->req->op.add.message,
490 if (!(instanceType & INSTANCE_TYPE_IS_NC_HEAD)) {
491 ldb_asprintf_errstring(ldb, "objectclass: Cannot add %s, parent does not exist!",
492 ldb_dn_get_linearized(msg->dn));
493 return LDB_ERR_NO_SUCH_OBJECT;
496 /* Don't keep any error messages - we've to add a partition */
497 ldb_set_errstring(ldb, NULL);
499 /* Fix up the DN to be in the standard form, taking
500 * particular care to match the parent DN */
501 ret = fix_dn(ldb, msg,
502 ac->req->op.add.message->dn,
503 ac->search_res->message->dn,
505 if (ret != LDB_SUCCESS) {
506 ldb_asprintf_errstring(ldb, "objectclass: Could not munge DN %s into normal form",
507 ldb_dn_get_linearized(ac->req->op.add.message->dn));
512 mem_ctx = talloc_new(ac);
513 if (mem_ctx == NULL) {
517 if (ac->schema != NULL) {
518 objectclass_element = ldb_msg_find_element(msg, "objectClass");
519 if (!objectclass_element) {
520 ldb_asprintf_errstring(ldb, "objectclass: Cannot add %s, no objectclass specified!",
521 ldb_dn_get_linearized(msg->dn));
522 talloc_free(mem_ctx);
523 return LDB_ERR_OBJECT_CLASS_VIOLATION;
525 if (objectclass_element->num_values == 0) {
526 ldb_asprintf_errstring(ldb, "objectclass: Cannot add %s, at least one (structural) objectclass has to be specified!",
527 ldb_dn_get_linearized(msg->dn));
528 talloc_free(mem_ctx);
529 return LDB_ERR_CONSTRAINT_VIOLATION;
532 /* Here we do now get the "objectClass" list from the
534 ret = objectclass_sort(ac->module, ac->schema, mem_ctx,
535 objectclass_element, &sorted);
536 if (ret != LDB_SUCCESS) {
537 talloc_free(mem_ctx);
541 ldb_msg_remove_element(msg, objectclass_element);
543 /* Well, now we shouldn't find any additional "objectClass"
544 * message element (required by the AD specification). */
545 objectclass_element = ldb_msg_find_element(msg, "objectClass");
546 if (objectclass_element != NULL) {
547 ldb_asprintf_errstring(ldb, "objectclass: Cannot add %s, only one 'objectclass' attribute specification is allowed!",
548 ldb_dn_get_linearized(msg->dn));
549 talloc_free(mem_ctx);
550 return LDB_ERR_OBJECT_CLASS_VIOLATION;
553 /* We must completely replace the existing objectClass entry,
554 * because we need it sorted. */
555 ret = ldb_msg_add_empty(msg, "objectClass", 0, NULL);
556 if (ret != LDB_SUCCESS) {
557 talloc_free(mem_ctx);
561 /* Move from the linked list back into an ldb msg */
562 for (current = sorted; current; current = current->next) {
563 value = talloc_strdup(msg, current->objectclass->lDAPDisplayName);
565 talloc_free(mem_ctx);
569 ret = ldb_msg_add_string(msg, "objectClass", value);
570 if (ret != LDB_SUCCESS) {
571 ldb_set_errstring(ldb,
572 "objectclass: could not re-add sorted "
573 "objectclass to modify msg");
574 talloc_free(mem_ctx);
579 talloc_free(mem_ctx);
581 /* Retrive the message again so get_last_structural_class works */
582 objectclass_element = ldb_msg_find_element(msg, "objectClass");
584 /* Make sure its valid to add an object of this type */
585 objectclass = get_last_structural_class(ac->schema,
586 objectclass_element);
587 if(objectclass == NULL) {
588 ldb_asprintf_errstring(ldb,
589 "Failed to find a structural class for %s",
590 ldb_dn_get_linearized(msg->dn));
591 return LDB_ERR_UNWILLING_TO_PERFORM;
594 rdn_name = ldb_dn_get_rdn_name(msg->dn);
595 if (rdn_name == NULL) {
596 return ldb_operr(ldb);
599 for (i = 0; (!found) && (i < objectclass_element->num_values);
601 const struct dsdb_class *tmp_class =
602 dsdb_class_by_lDAPDisplayName_ldb_val(ac->schema,
603 &objectclass_element->values[i]);
605 if (tmp_class == NULL) continue;
607 if (ldb_attr_cmp(rdn_name, tmp_class->rDNAttID) == 0)
611 ldb_asprintf_errstring(ldb,
612 "objectclass: Invalid RDN '%s' for objectclass '%s'!",
613 rdn_name, objectclass->lDAPDisplayName);
614 return LDB_ERR_NAMING_VIOLATION;
617 if (objectclass->systemOnly &&
618 !ldb_request_get_control(ac->req, LDB_CONTROL_RELAX_OID) &&
619 !check_rodc_ntdsdsa_add(ac, objectclass)) {
620 ldb_asprintf_errstring(ldb, "objectClass %s is systemOnly, rejecting creation of %s",
621 objectclass->lDAPDisplayName, ldb_dn_get_linearized(msg->dn));
622 return LDB_ERR_UNWILLING_TO_PERFORM;
625 if (((strcmp(objectclass->lDAPDisplayName, "secret") == 0) ||
626 (strcmp(objectclass->lDAPDisplayName, "trustedDomain") == 0)) &&
627 !ldb_request_get_control(ac->req, LDB_CONTROL_RELAX_OID)) {
628 ldb_asprintf_errstring(ldb, "objectClass %s is LSA-specific, rejecting creation of %s",
629 objectclass->lDAPDisplayName, ldb_dn_get_linearized(msg->dn));
630 return LDB_ERR_UNWILLING_TO_PERFORM;
633 if (ac->search_res && ac->search_res->message) {
634 struct ldb_message_element *oc_el
635 = ldb_msg_find_element(ac->search_res->message, "objectClass");
637 bool allowed_class = false;
638 for (i=0; allowed_class == false && oc_el && i < oc_el->num_values; i++) {
639 const struct dsdb_class *sclass;
641 sclass = dsdb_class_by_lDAPDisplayName_ldb_val(ac->schema,
644 /* We don't know this class? what is going on? */
647 for (j=0; sclass->systemPossibleInferiors && sclass->systemPossibleInferiors[j]; j++) {
648 if (ldb_attr_cmp(objectclass->lDAPDisplayName, sclass->systemPossibleInferiors[j]) == 0) {
649 allowed_class = true;
655 if (!allowed_class) {
656 ldb_asprintf_errstring(ldb, "structural objectClass %s is not a valid child class for %s",
657 objectclass->lDAPDisplayName, ldb_dn_get_linearized(ac->search_res->message->dn));
658 return LDB_ERR_NAMING_VIOLATION;
662 objectcategory = ldb_msg_find_attr_as_dn(ldb, ac, msg,
664 if (objectcategory == NULL) {
665 struct dsdb_extended_dn_store_format *dn_format =
666 talloc_get_type(ldb_module_get_private(ac->module),
667 struct dsdb_extended_dn_store_format);
668 if (dn_format && dn_format->store_extended_dn_in_ldb == false) {
669 /* Strip off extended components */
670 struct ldb_dn *dn = ldb_dn_new(ac, ldb,
671 objectclass->defaultObjectCategory);
672 value = ldb_dn_alloc_linearized(msg, dn);
675 value = talloc_strdup(msg,
676 objectclass->defaultObjectCategory);
682 ret = ldb_msg_add_string(msg, "objectCategory", value);
683 if (ret != LDB_SUCCESS) {
687 const struct dsdb_class *ocClass =
688 dsdb_class_by_cn_ldb_val(ac->schema,
689 ldb_dn_get_rdn_val(objectcategory));
690 if (ocClass != NULL) {
691 struct ldb_dn *dn = ldb_dn_new(ac, ldb,
692 ocClass->defaultObjectCategory);
693 if (ldb_dn_compare(objectcategory, dn) != 0) {
697 talloc_free(objectcategory);
698 if (ocClass == NULL) {
699 ldb_asprintf_errstring(ldb, "objectclass: Cannot add %s, 'objectCategory' attribute invalid!",
700 ldb_dn_get_linearized(msg->dn));
701 return LDB_ERR_OBJECT_CLASS_VIOLATION;
705 if (!ldb_msg_find_element(msg, "showInAdvancedViewOnly") && (objectclass->defaultHidingValue == true)) {
706 ldb_msg_add_string(msg, "showInAdvancedViewOnly",
710 /* There are very special rules for systemFlags, see MS-ADTS
711 * MS-ADTS 3.1.1.5.2.4 */
713 el = ldb_msg_find_element(msg, "systemFlags");
714 if ((el != NULL) && (el->num_values > 1)) {
715 ldb_asprintf_errstring(ldb, "objectclass: Cannot add %s, 'systemFlags' attribute multivalued!",
716 ldb_dn_get_linearized(msg->dn));
717 return LDB_ERR_CONSTRAINT_VIOLATION;
720 systemFlags = ldb_msg_find_attr_as_int(msg, "systemFlags", 0);
722 ldb_msg_remove_attr(msg, "systemFlags");
724 /* Only the following flags may be set by a client */
725 if (ldb_request_get_control(ac->req,
726 LDB_CONTROL_RELAX_OID) == NULL) {
727 systemFlags &= ( SYSTEM_FLAG_CONFIG_ALLOW_RENAME
728 | SYSTEM_FLAG_CONFIG_ALLOW_MOVE
729 | SYSTEM_FLAG_CONFIG_ALLOW_LIMITED_MOVE
730 | SYSTEM_FLAG_ATTR_IS_RDN );
733 /* But the last one ("ATTR_IS_RDN") is only allowed on
734 * "attributeSchema" objects. So truncate if it does not fit. */
735 if (ldb_attr_cmp(objectclass->lDAPDisplayName, "attributeSchema") != 0) {
736 systemFlags &= ~SYSTEM_FLAG_ATTR_IS_RDN;
739 if (ldb_attr_cmp(objectclass->lDAPDisplayName, "server") == 0) {
740 systemFlags |= (int32_t)(SYSTEM_FLAG_DISALLOW_MOVE_ON_DELETE | SYSTEM_FLAG_CONFIG_ALLOW_RENAME | SYSTEM_FLAG_CONFIG_ALLOW_LIMITED_MOVE);
741 } else if (ldb_attr_cmp(objectclass->lDAPDisplayName, "site") == 0
742 || ldb_attr_cmp(objectclass->lDAPDisplayName, "serversContainer") == 0
743 || ldb_attr_cmp(objectclass->lDAPDisplayName, "nTDSDSA") == 0) {
744 systemFlags |= (int32_t)(SYSTEM_FLAG_DISALLOW_MOVE_ON_DELETE);
746 } else if (ldb_attr_cmp(objectclass->lDAPDisplayName, "siteLink") == 0
747 || ldb_attr_cmp(objectclass->lDAPDisplayName, "siteLinkBridge") == 0
748 || ldb_attr_cmp(objectclass->lDAPDisplayName, "nTDSConnection") == 0) {
749 systemFlags |= (int32_t)(SYSTEM_FLAG_CONFIG_ALLOW_RENAME);
752 /* TODO: If parent object is site or subnet, also add (SYSTEM_FLAG_CONFIG_ALLOW_RENAME) */
754 if (el || systemFlags != 0) {
755 ret = samdb_msg_add_int(ldb, msg, msg, "systemFlags",
757 if (ret != LDB_SUCCESS) {
762 /* make sure that "isCriticalSystemObject" is not specified! */
763 el = ldb_msg_find_element(msg, "isCriticalSystemObject");
765 !ldb_request_get_control(ac->req, LDB_CONTROL_RELAX_OID)) {
766 ldb_set_errstring(ldb,
767 "objectclass: 'isCriticalSystemObject' must not be specified!");
768 return LDB_ERR_UNWILLING_TO_PERFORM;
772 ret = ldb_msg_sanity_check(ldb, msg);
773 if (ret != LDB_SUCCESS) {
777 ret = ldb_build_add_req(&add_req, ldb, ac,
782 LDB_REQ_SET_LOCATION(add_req);
783 if (ret != LDB_SUCCESS) {
787 /* perform the add */
788 return ldb_next_request(ac->module, add_req);
791 static int oc_modify_callback(struct ldb_request *req,
792 struct ldb_reply *ares);
793 static int objectclass_do_mod(struct oc_context *ac);
795 static int objectclass_modify(struct ldb_module *module, struct ldb_request *req)
797 struct ldb_context *ldb = ldb_module_get_ctx(module);
798 struct ldb_message_element *objectclass_element;
799 struct ldb_message *msg;
800 struct ldb_request *down_req;
801 struct oc_context *ac;
802 bool oc_changes = false;
805 ldb_debug(ldb, LDB_DEBUG_TRACE, "objectclass_modify\n");
807 /* do not manipulate our control entries */
808 if (ldb_dn_is_special(req->op.mod.message->dn)) {
809 return ldb_next_request(module, req);
812 /* As with the "real" AD we don't accept empty messages */
813 if (req->op.mod.message->num_elements == 0) {
814 ldb_set_errstring(ldb, "objectclass: modify message must have "
815 "elements/attributes!");
816 return LDB_ERR_UNWILLING_TO_PERFORM;
819 ac = oc_init_context(module, req);
821 return ldb_operr(ldb);
824 /* Without schema, there isn't much to do here */
825 if (ac->schema == NULL) {
827 return ldb_next_request(module, req);
830 msg = ldb_msg_copy_shallow(ac, req->op.mod.message);
832 return ldb_operr(ldb);
835 /* For now change everything except the objectclasses */
837 objectclass_element = ldb_msg_find_element(msg, "objectClass");
838 if (objectclass_element != NULL) {
839 ldb_msg_remove_attr(msg, "objectClass");
843 ret = ldb_build_mod_req(&down_req, ldb, ac,
846 oc_changes ? oc_modify_callback : oc_op_callback,
848 LDB_REQ_SET_LOCATION(down_req);
849 if (ret != LDB_SUCCESS) {
853 return ldb_next_request(module, down_req);
856 static int oc_modify_callback(struct ldb_request *req, struct ldb_reply *ares)
858 static const char * const attrs[] = { "objectClass", NULL };
859 struct ldb_context *ldb;
860 struct ldb_request *search_req;
861 struct oc_context *ac;
864 ac = talloc_get_type(req->context, struct oc_context);
865 ldb = ldb_module_get_ctx(ac->module);
868 return ldb_module_done(ac->req, NULL, NULL,
869 LDB_ERR_OPERATIONS_ERROR);
872 if (ares->type == LDB_REPLY_REFERRAL) {
873 return ldb_module_send_referral(ac->req, ares->referral);
876 if (ares->error != LDB_SUCCESS) {
877 return ldb_module_done(ac->req, ares->controls,
878 ares->response, ares->error);
881 if (ares->type != LDB_REPLY_DONE) {
883 return ldb_module_done(ac->req, NULL, NULL,
884 LDB_ERR_OPERATIONS_ERROR);
889 /* this looks up the real existing object for fetching some important
890 * informations (objectclasses) */
891 ret = ldb_build_search_req(&search_req, ldb,
892 ac, ac->req->op.mod.message->dn,
896 ac, get_search_callback,
898 LDB_REQ_SET_LOCATION(search_req);
899 if (ret != LDB_SUCCESS) {
900 return ldb_module_done(ac->req, NULL, NULL, ret);
903 ac->step_fn = objectclass_do_mod;
905 ret = ldb_next_request(ac->module, search_req);
906 if (ret != LDB_SUCCESS) {
907 return ldb_module_done(ac->req, NULL, NULL, ret);
913 static int objectclass_do_mod(struct oc_context *ac)
915 struct ldb_context *ldb;
916 struct ldb_request *mod_req;
918 struct ldb_message_element *oc_el_entry, *oc_el_change;
919 struct ldb_val *vals;
920 struct ldb_message *msg;
922 struct class_list *sorted, *current;
923 const struct dsdb_class *objectclass;
924 unsigned int i, j, k;
925 bool found, replace = false;
928 ldb = ldb_module_get_ctx(ac->module);
930 /* we should always have a valid entry when we enter here */
931 if (ac->search_res == NULL) {
932 return ldb_operr(ldb);
935 oc_el_entry = ldb_msg_find_element(ac->search_res->message,
937 if (oc_el_entry == NULL) {
938 /* existing entry without a valid object class? */
939 return ldb_operr(ldb);
942 /* use a new message structure */
943 msg = ldb_msg_new(ac);
948 msg->dn = ac->req->op.mod.message->dn;
950 mem_ctx = talloc_new(ac);
951 if (mem_ctx == NULL) {
955 /* We've to walk over all "objectClass" message elements */
956 for (k = 0; k < ac->req->op.mod.message->num_elements; k++) {
957 if (ldb_attr_cmp(ac->req->op.mod.message->elements[k].name,
958 "objectClass") != 0) {
962 oc_el_change = &ac->req->op.mod.message->elements[k];
964 switch (oc_el_change->flags & LDB_FLAG_MOD_MASK) {
965 case LDB_FLAG_MOD_ADD:
966 /* Merge the two message elements */
967 for (i = 0; i < oc_el_change->num_values; i++) {
968 for (j = 0; j < oc_el_entry->num_values; j++) {
969 if (ldb_attr_cmp((char *)oc_el_change->values[i].data,
970 (char *)oc_el_entry->values[j].data) == 0) {
971 ldb_asprintf_errstring(ldb,
972 "objectclass: cannot re-add an existing objectclass: '%.*s'!",
973 (int)oc_el_change->values[i].length,
974 (const char *)oc_el_change->values[i].data);
975 talloc_free(mem_ctx);
976 return LDB_ERR_ATTRIBUTE_OR_VALUE_EXISTS;
979 /* append the new object class value - code was
980 * copied from "ldb_msg_add_value" */
981 vals = talloc_realloc(oc_el_entry, oc_el_entry->values,
983 oc_el_entry->num_values + 1);
985 talloc_free(mem_ctx);
988 oc_el_entry->values = vals;
989 oc_el_entry->values[oc_el_entry->num_values] =
990 oc_el_change->values[i];
991 ++(oc_el_entry->num_values);
994 objectclass = get_last_structural_class(ac->schema,
996 if (objectclass != NULL) {
997 ldb_asprintf_errstring(ldb,
998 "objectclass: cannot add a new top-most structural objectclass '%s'!",
999 objectclass->lDAPDisplayName);
1000 talloc_free(mem_ctx);
1001 return LDB_ERR_OBJECT_CLASS_VIOLATION;
1004 /* Now do the sorting */
1005 ret = objectclass_sort(ac->module, ac->schema, mem_ctx,
1006 oc_el_entry, &sorted);
1007 if (ret != LDB_SUCCESS) {
1008 talloc_free(mem_ctx);
1014 case LDB_FLAG_MOD_REPLACE:
1015 /* Do the sorting for the change message element */
1016 ret = objectclass_sort(ac->module, ac->schema, mem_ctx,
1017 oc_el_change, &sorted);
1018 if (ret != LDB_SUCCESS) {
1019 talloc_free(mem_ctx);
1023 /* this is a replace */
1028 case LDB_FLAG_MOD_DELETE:
1029 /* get the actual top-most structural objectclass */
1030 objectclass = get_last_structural_class(ac->schema,
1032 if (objectclass == NULL) {
1033 talloc_free(mem_ctx);
1034 return ldb_operr(ldb);
1037 /* Merge the two message elements */
1038 for (i = 0; i < oc_el_change->num_values; i++) {
1040 for (j = 0; j < oc_el_entry->num_values; j++) {
1041 if (ldb_attr_cmp((char *)oc_el_change->values[i].data,
1042 (char *)oc_el_entry->values[j].data) == 0) {
1044 /* delete the object class value
1045 * - code was copied from
1046 * "ldb_msg_remove_element" */
1047 if (j != oc_el_entry->num_values - 1) {
1048 memmove(&oc_el_entry->values[j],
1049 &oc_el_entry->values[j+1],
1050 ((oc_el_entry->num_values-1) - j)*sizeof(struct ldb_val));
1052 --(oc_el_entry->num_values);
1057 /* we cannot delete a not existing
1059 ldb_asprintf_errstring(ldb,
1060 "objectclass: cannot delete this objectclass: '%.*s'!",
1061 (int)oc_el_change->values[i].length,
1062 (const char *)oc_el_change->values[i].data);
1063 talloc_free(mem_ctx);
1064 return LDB_ERR_NO_SUCH_ATTRIBUTE;
1068 /* Make sure that the top-most structural object class
1069 * hasn't been deleted */
1071 for (i = 0; i < oc_el_entry->num_values; i++) {
1072 if (ldb_attr_cmp(objectclass->lDAPDisplayName,
1073 (char *)oc_el_entry->values[i].data) == 0) {
1079 ldb_asprintf_errstring(ldb,
1080 "objectclass: cannot delete the top-most structural objectclass '%s'!",
1081 objectclass->lDAPDisplayName);
1082 talloc_free(mem_ctx);
1083 return LDB_ERR_OBJECT_CLASS_VIOLATION;
1086 /* Now do the sorting */
1087 ret = objectclass_sort(ac->module, ac->schema, mem_ctx,
1088 oc_el_entry, &sorted);
1089 if (ret != LDB_SUCCESS) {
1090 talloc_free(mem_ctx);
1097 /* (Re)-add an empty "objectClass" attribute on the object
1098 * classes change message "msg". */
1099 ldb_msg_remove_attr(msg, "objectClass");
1100 ret = ldb_msg_add_empty(msg, "objectClass",
1101 LDB_FLAG_MOD_REPLACE, &oc_el_change);
1102 if (ret != LDB_SUCCESS) {
1103 talloc_free(mem_ctx);
1104 return ldb_oom(ldb);
1107 /* Move from the linked list back into an ldb msg */
1108 for (current = sorted; current; current = current->next) {
1109 value = talloc_strdup(msg,
1110 current->objectclass->lDAPDisplayName);
1111 if (value == NULL) {
1112 talloc_free(mem_ctx);
1113 return ldb_oom(ldb);
1115 ret = ldb_msg_add_string(msg, "objectClass", value);
1116 if (ret != LDB_SUCCESS) {
1117 ldb_set_errstring(ldb,
1118 "objectclass: could not re-add sorted objectclasses!");
1119 talloc_free(mem_ctx);
1125 /* Well, on replace we are nearly done: we have to test
1126 * if the change and entry message element are identical
1127 * ly. We can use "ldb_msg_element_compare" since now
1128 * the specified objectclasses match for sure in case.
1130 ret = ldb_msg_element_compare(oc_el_entry,
1133 ret = ldb_msg_element_compare(oc_el_change,
1137 /* they are the same so we are done in this
1139 talloc_free(mem_ctx);
1140 return ldb_module_done(ac->req, NULL, NULL,
1143 ldb_set_errstring(ldb,
1144 "objectclass: the specified objectclasses are not exactly the same as on the entry!");
1145 talloc_free(mem_ctx);
1146 return LDB_ERR_OBJECT_CLASS_VIOLATION;
1150 /* Now we've applied all changes from "oc_el_change" to
1151 * "oc_el_entry" therefore the new "oc_el_entry" will be
1152 * "oc_el_change". */
1153 oc_el_entry = oc_el_change;
1156 talloc_free(mem_ctx);
1158 /* Now we have the real and definitive change left to do */
1160 ret = ldb_build_mod_req(&mod_req, ldb, ac,
1165 LDB_REQ_SET_LOCATION(mod_req);
1166 if (ret != LDB_SUCCESS) {
1170 return ldb_next_request(ac->module, mod_req);
1173 static int objectclass_do_rename(struct oc_context *ac);
1175 static int objectclass_rename(struct ldb_module *module, struct ldb_request *req)
1177 static const char * const attrs[] = { "objectClass", NULL };
1178 struct ldb_context *ldb;
1179 struct ldb_request *search_req;
1180 struct oc_context *ac;
1181 struct ldb_dn *parent_dn;
1184 ldb = ldb_module_get_ctx(module);
1186 ldb_debug(ldb, LDB_DEBUG_TRACE, "objectclass_rename\n");
1188 /* do not manipulate our control entries */
1189 if (ldb_dn_is_special(req->op.rename.newdn)) {
1190 return ldb_next_request(module, req);
1193 ac = oc_init_context(module, req);
1195 return ldb_operr(ldb);
1198 parent_dn = ldb_dn_get_parent(ac, req->op.rename.newdn);
1199 if (parent_dn == NULL) {
1200 ldb_asprintf_errstring(ldb, "objectclass: Cannot rename %s, the parent DN does not exist!",
1201 ldb_dn_get_linearized(req->op.rename.olddn));
1202 return LDB_ERR_NO_SUCH_OBJECT;
1205 /* this looks up the parent object for fetching some important
1206 * informations (objectclasses, DN normalisation...) */
1207 ret = ldb_build_search_req(&search_req, ldb,
1208 ac, parent_dn, LDB_SCOPE_BASE,
1211 ac, get_search_callback,
1213 LDB_REQ_SET_LOCATION(search_req);
1214 if (ret != LDB_SUCCESS) {
1218 /* we have to add the show recycled control, as otherwise DRS
1219 deletes will be refused as we will think the target parent
1221 ret = ldb_request_add_control(search_req, LDB_CONTROL_SHOW_RECYCLED_OID,
1224 if (ret != LDB_SUCCESS) {
1228 ac->step_fn = objectclass_do_rename;
1230 return ldb_next_request(ac->module, search_req);
1233 static int objectclass_do_rename2(struct oc_context *ac);
1235 static int objectclass_do_rename(struct oc_context *ac)
1237 static const char * const attrs[] = { "objectClass", NULL };
1238 struct ldb_context *ldb;
1239 struct ldb_request *search_req;
1242 ldb = ldb_module_get_ctx(ac->module);
1244 /* Check if we have a valid parent - this check is needed since
1245 * we don't get a LDB_ERR_NO_SUCH_OBJECT error. */
1246 if (ac->search_res == NULL) {
1247 ldb_asprintf_errstring(ldb, "objectclass: Cannot rename %s, parent does not exist!",
1248 ldb_dn_get_linearized(ac->req->op.rename.olddn));
1249 return LDB_ERR_OTHER;
1252 /* now assign "search_res2" to the parent entry to have "search_res"
1253 * free for another lookup */
1254 ac->search_res2 = ac->search_res;
1255 ac->search_res = NULL;
1257 /* this looks up the real existing object for fetching some important
1258 * informations (objectclasses) */
1259 ret = ldb_build_search_req(&search_req, ldb,
1260 ac, ac->req->op.rename.olddn,
1264 ac, get_search_callback,
1266 LDB_REQ_SET_LOCATION(search_req);
1267 if (ret != LDB_SUCCESS) {
1271 ac->step_fn = objectclass_do_rename2;
1273 return ldb_next_request(ac->module, search_req);
1276 static int objectclass_do_rename2(struct oc_context *ac)
1278 struct ldb_context *ldb;
1279 struct ldb_request *rename_req;
1280 struct ldb_dn *fixed_dn;
1283 ldb = ldb_module_get_ctx(ac->module);
1285 /* Check if we have a valid entry - this check is needed since
1286 * we don't get a LDB_ERR_NO_SUCH_OBJECT error. */
1287 if (ac->search_res == NULL) {
1288 ldb_asprintf_errstring(ldb, "objectclass: Cannot rename %s, entry does not exist!",
1289 ldb_dn_get_linearized(ac->req->op.rename.olddn));
1290 return LDB_ERR_NO_SUCH_OBJECT;
1293 if (ac->schema != NULL) {
1294 struct ldb_message_element *oc_el_entry, *oc_el_parent;
1295 const struct dsdb_class *objectclass;
1296 const char *rdn_name;
1297 bool allowed_class = false;
1301 oc_el_entry = ldb_msg_find_element(ac->search_res->message,
1303 if (oc_el_entry == NULL) {
1304 /* existing entry without a valid object class? */
1305 return ldb_operr(ldb);
1307 objectclass = get_last_structural_class(ac->schema, oc_el_entry);
1308 if (objectclass == NULL) {
1309 /* existing entry without a valid object class? */
1310 return ldb_operr(ldb);
1313 rdn_name = ldb_dn_get_rdn_name(ac->req->op.rename.newdn);
1314 if (rdn_name == NULL) {
1315 return ldb_operr(ldb);
1318 for (i = 0; (!found) && (i < oc_el_entry->num_values); i++) {
1319 const struct dsdb_class *tmp_class =
1320 dsdb_class_by_lDAPDisplayName_ldb_val(ac->schema,
1321 &oc_el_entry->values[i]);
1323 if (tmp_class == NULL) continue;
1325 if (ldb_attr_cmp(rdn_name, tmp_class->rDNAttID) == 0)
1329 ldb_asprintf_errstring(ldb,
1330 "objectclass: Invalid RDN '%s' for objectclass '%s'!",
1331 rdn_name, objectclass->lDAPDisplayName);
1332 return LDB_ERR_UNWILLING_TO_PERFORM;
1335 oc_el_parent = ldb_msg_find_element(ac->search_res2->message,
1337 if (oc_el_parent == NULL) {
1338 /* existing entry without a valid object class? */
1339 return ldb_operr(ldb);
1342 for (i=0; allowed_class == false && i < oc_el_parent->num_values; i++) {
1343 const struct dsdb_class *sclass;
1345 sclass = dsdb_class_by_lDAPDisplayName_ldb_val(ac->schema,
1346 &oc_el_parent->values[i]);
1348 /* We don't know this class? what is going on? */
1351 for (j=0; sclass->systemPossibleInferiors && sclass->systemPossibleInferiors[j]; j++) {
1352 if (ldb_attr_cmp(objectclass->lDAPDisplayName, sclass->systemPossibleInferiors[j]) == 0) {
1353 allowed_class = true;
1359 if (!allowed_class) {
1360 ldb_asprintf_errstring(ldb,
1361 "objectclass: structural objectClass %s is not a valid child class for %s",
1362 objectclass->lDAPDisplayName, ldb_dn_get_linearized(ac->search_res2->message->dn));
1363 return LDB_ERR_NAMING_VIOLATION;
1367 /* Ensure we are not trying to rename it to be a child of itself */
1368 if ((ldb_dn_compare_base(ac->req->op.rename.olddn,
1369 ac->req->op.rename.newdn) == 0) &&
1370 (ldb_dn_compare(ac->req->op.rename.olddn,
1371 ac->req->op.rename.newdn) != 0)) {
1372 ldb_asprintf_errstring(ldb, "objectclass: Cannot rename %s to be a child of itself",
1373 ldb_dn_get_linearized(ac->req->op.rename.olddn));
1374 return LDB_ERR_UNWILLING_TO_PERFORM;
1377 /* Fix up the DN to be in the standard form, taking
1378 * particular care to match the parent DN */
1379 ret = fix_dn(ldb, ac,
1380 ac->req->op.rename.newdn,
1381 ac->search_res2->message->dn,
1383 if (ret != LDB_SUCCESS) {
1384 ldb_asprintf_errstring(ldb, "objectclass: Could not munge DN %s into normal form",
1385 ldb_dn_get_linearized(ac->req->op.rename.newdn));
1390 ret = ldb_build_rename_req(&rename_req, ldb, ac,
1391 ac->req->op.rename.olddn, fixed_dn,
1395 LDB_REQ_SET_LOCATION(rename_req);
1396 if (ret != LDB_SUCCESS) {
1400 /* perform the rename */
1401 return ldb_next_request(ac->module, rename_req);
1404 static int objectclass_do_delete(struct oc_context *ac);
1406 static int objectclass_delete(struct ldb_module *module, struct ldb_request *req)
1408 static const char * const attrs[] = { "nCName", "objectClass",
1410 "isCriticalSystemObject", NULL };
1411 struct ldb_context *ldb;
1412 struct ldb_request *search_req;
1413 struct oc_context *ac;
1416 ldb = ldb_module_get_ctx(module);
1418 ldb_debug(ldb, LDB_DEBUG_TRACE, "objectclass_delete\n");
1420 /* do not manipulate our control entries */
1421 if (ldb_dn_is_special(req->op.del.dn)) {
1422 return ldb_next_request(module, req);
1425 /* Bypass the constraint checks when we do have the "RELAX" control
1427 if (ldb_request_get_control(req, LDB_CONTROL_RELAX_OID) != NULL) {
1428 return ldb_next_request(module, req);
1431 ac = oc_init_context(module, req);
1433 return ldb_operr(ldb);
1436 /* this looks up the entry object for fetching some important
1437 * informations (object classes, system flags...) */
1438 ret = ldb_build_search_req(&search_req, ldb,
1439 ac, req->op.del.dn, LDB_SCOPE_BASE,
1442 ac, get_search_callback,
1444 LDB_REQ_SET_LOCATION(search_req);
1445 if (ret != LDB_SUCCESS) {
1449 ac->step_fn = objectclass_do_delete;
1451 return ldb_next_request(ac->module, search_req);
1454 static int objectclass_do_delete(struct oc_context *ac)
1456 struct ldb_context *ldb;
1458 int32_t systemFlags;
1459 bool isCriticalSystemObject;
1462 ldb = ldb_module_get_ctx(ac->module);
1464 /* Check if we have a valid entry - this check is needed since
1465 * we don't get a LDB_ERR_NO_SUCH_OBJECT error. */
1466 if (ac->search_res == NULL) {
1467 ldb_asprintf_errstring(ldb, "objectclass: Cannot delete %s, entry does not exist!",
1468 ldb_dn_get_linearized(ac->req->op.del.dn));
1469 return LDB_ERR_NO_SUCH_OBJECT;
1472 /* DC's ntDSDSA object */
1473 if (ldb_dn_compare(ac->req->op.del.dn, samdb_ntds_settings_dn(ldb)) == 0) {
1474 ldb_asprintf_errstring(ldb, "objectclass: Cannot delete %s, it's the DC's ntDSDSA object!",
1475 ldb_dn_get_linearized(ac->req->op.del.dn));
1476 return LDB_ERR_UNWILLING_TO_PERFORM;
1479 /* DC's rIDSet object */
1480 /* Perform this check only when it does exist - this is needed in order
1481 * to don't let existing provisions break. */
1482 ret = samdb_rid_set_dn(ldb, ac, &dn);
1483 if ((ret != LDB_SUCCESS) && (ret != LDB_ERR_NO_SUCH_OBJECT)) {
1486 if (ret == LDB_SUCCESS) {
1487 if (ldb_dn_compare(ac->req->op.del.dn, dn) == 0) {
1489 ldb_asprintf_errstring(ldb, "objectclass: Cannot delete %s, it's the DC's rIDSet object!",
1490 ldb_dn_get_linearized(ac->req->op.del.dn));
1491 return LDB_ERR_UNWILLING_TO_PERFORM;
1496 /* crossRef objects regarding config, schema and default domain NCs */
1497 if (samdb_find_attribute(ldb, ac->search_res->message, "objectClass",
1498 "crossRef") != NULL) {
1499 dn = ldb_msg_find_attr_as_dn(ldb, ac, ac->search_res->message,
1501 if ((ldb_dn_compare(dn, ldb_get_default_basedn(ldb)) == 0) ||
1502 (ldb_dn_compare(dn, ldb_get_config_basedn(ldb)) == 0)) {
1505 ldb_asprintf_errstring(ldb, "objectclass: Cannot delete %s, it's a crossRef object to the main or configuration partition!",
1506 ldb_dn_get_linearized(ac->req->op.del.dn));
1507 return LDB_ERR_NOT_ALLOWED_ON_NON_LEAF;
1509 if (ldb_dn_compare(dn, ldb_get_schema_basedn(ldb)) == 0) {
1512 ldb_asprintf_errstring(ldb, "objectclass: Cannot delete %s, it's a crossRef object to the schema partition!",
1513 ldb_dn_get_linearized(ac->req->op.del.dn));
1514 return LDB_ERR_UNWILLING_TO_PERFORM;
1521 systemFlags = ldb_msg_find_attr_as_int(ac->search_res->message,
1523 if ((systemFlags & SYSTEM_FLAG_DISALLOW_DELETE) != 0) {
1524 ldb_asprintf_errstring(ldb, "objectclass: Cannot delete %s, it isn't permitted!",
1525 ldb_dn_get_linearized(ac->req->op.del.dn));
1526 return LDB_ERR_UNWILLING_TO_PERFORM;
1529 /* isCriticalSystemObject - but this only applies on tree delete
1530 * operations - MS-ADTS 3.1.1.5.5.7.2 */
1531 if (ldb_request_get_control(ac->req, LDB_CONTROL_TREE_DELETE_OID) != NULL) {
1532 isCriticalSystemObject = ldb_msg_find_attr_as_bool(ac->search_res->message,
1533 "isCriticalSystemObject", false);
1534 if (isCriticalSystemObject) {
1535 ldb_asprintf_errstring(ldb,
1536 "objectclass: Cannot tree-delete %s, it's a critical system object!",
1537 ldb_dn_get_linearized(ac->req->op.del.dn));
1538 return LDB_ERR_UNWILLING_TO_PERFORM;
1542 return ldb_next_request(ac->module, ac->req);
1545 static int objectclass_init(struct ldb_module *module)
1547 struct ldb_context *ldb = ldb_module_get_ctx(module);
1550 /* Init everything else */
1551 ret = ldb_next_init(module);
1552 if (ret != LDB_SUCCESS) {
1556 /* Look for the opaque to indicate we might have to cut down the DN of defaultObjectCategory */
1557 ldb_module_set_private(module, ldb_get_opaque(ldb, DSDB_EXTENDED_DN_STORE_FORMAT_OPAQUE_NAME));
1559 ret = ldb_mod_register_control(module, LDB_CONTROL_RODC_DCPROMO_OID);
1560 if (ret != LDB_SUCCESS) {
1561 ldb_debug(ldb, LDB_DEBUG_ERROR,
1562 "objectclass_init: Unable to register control DCPROMO with rootdse\n");
1563 return ldb_operr(ldb);
1569 static const struct ldb_module_ops ldb_objectclass_module_ops = {
1570 .name = "objectclass",
1571 .add = objectclass_add,
1572 .modify = objectclass_modify,
1573 .rename = objectclass_rename,
1574 .del = objectclass_delete,
1575 .init_context = objectclass_init
1578 int ldb_objectclass_module_init(const char *version)
1580 LDB_MODULE_CHECK_VERSION(version);
1581 return ldb_register_module(&ldb_objectclass_module_ops);