4 Copyright (C) Simo Sorce 2006-2008
5 Copyright (C) Andrew Bartlett <abartlet@samba.org> 2005-2007
6 Copyright (C) Nadezhda Ivanova 2009
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: DS Security descriptor module
28 * - Calculate the security descriptor of a newly created object
29 * - Perform sd recalculation on a move operation
30 * - Handle sd modification invariants
32 * Author: Nadezhda Ivanova
36 #include <ldb_module.h>
37 #include "util/dlinklist.h"
38 #include "dsdb/samdb/samdb.h"
39 #include "librpc/ndr/libndr.h"
40 #include "librpc/gen_ndr/ndr_security.h"
41 #include "libcli/security/security.h"
42 #include "dsdb/samdb/ldb_modules/schema.h"
43 #include "auth/auth.h"
44 #include "param/param.h"
47 struct descriptor_data {
51 struct descriptor_context {
52 struct ldb_module *module;
53 struct ldb_request *req;
54 struct ldb_message *msg;
55 struct ldb_reply *search_res;
56 struct ldb_reply *search_oc_res;
57 struct ldb_val *parentsd_val;
58 struct ldb_message_element *sd_element;
59 struct ldb_val *sd_val;
60 int (*step_fn)(struct descriptor_context *);
63 struct dom_sid *get_default_ag(TALLOC_CTX *mem_ctx,
65 struct security_token *token,
66 struct ldb_context *ldb)
68 TALLOC_CTX *tmp_ctx = talloc_new(mem_ctx);
69 const struct dom_sid *domain_sid = samdb_domain_sid(ldb);
70 struct dom_sid *da_sid = dom_sid_add_rid(tmp_ctx, domain_sid, DOMAIN_RID_ADMINS);
71 struct dom_sid *ea_sid = dom_sid_add_rid(tmp_ctx, domain_sid, DOMAIN_RID_ENTERPRISE_ADMINS);
72 struct dom_sid *sa_sid = dom_sid_add_rid(tmp_ctx, domain_sid, DOMAIN_RID_SCHEMA_ADMINS);
73 struct dom_sid *dag_sid;
74 struct ldb_dn *nc_root;
77 ret = dsdb_find_nc_root(ldb, tmp_ctx, dn, &nc_root);
78 if (ret != LDB_SUCCESS) {
83 if (ldb_dn_compare(nc_root, ldb_get_schema_basedn(ldb)) == 0) {
84 if (security_token_has_sid(token, sa_sid))
85 dag_sid = dom_sid_dup(mem_ctx, sa_sid);
86 else if (security_token_has_sid(token, ea_sid))
87 dag_sid = dom_sid_dup(mem_ctx, ea_sid);
88 else if (security_token_has_sid(token, da_sid))
89 dag_sid = dom_sid_dup(mem_ctx, da_sid);
92 } else if (ldb_dn_compare(nc_root, ldb_get_config_basedn(ldb)) == 0) {
93 if (security_token_has_sid(token, ea_sid))
94 dag_sid = dom_sid_dup(mem_ctx, ea_sid);
95 else if (security_token_has_sid(token, da_sid))
96 dag_sid = dom_sid_dup(mem_ctx, da_sid);
99 } else if (ldb_dn_compare(nc_root, ldb_get_default_basedn(ldb)) == 0) {
100 if (security_token_has_sid(token, da_sid))
101 dag_sid = dom_sid_dup(mem_ctx, da_sid);
102 else if (security_token_has_sid(token, ea_sid))
103 dag_sid = dom_sid_dup(mem_ctx, ea_sid);
110 talloc_free(tmp_ctx);
114 static struct security_descriptor *get_sd_unpacked(struct ldb_module *module, TALLOC_CTX *mem_ctx,
115 const struct dsdb_class *objectclass)
117 struct ldb_context *ldb = ldb_module_get_ctx(module);
118 struct security_descriptor *sd;
119 const struct dom_sid *domain_sid = samdb_domain_sid(ldb);
121 if (!objectclass->defaultSecurityDescriptor || !domain_sid) {
125 sd = sddl_decode(mem_ctx,
126 objectclass->defaultSecurityDescriptor,
131 static struct dom_sid *get_default_group(TALLOC_CTX *mem_ctx,
132 struct ldb_context *ldb,
135 if (dsdb_functional_level(ldb) >= DS_DOMAIN_FUNCTION_2008) {
142 static struct security_descriptor *descr_handle_sd_flags(TALLOC_CTX *mem_ctx,
143 struct security_descriptor *new_sd,
144 struct security_descriptor *old_sd,
147 struct security_descriptor *final_sd;
148 /* if there is no control or control == 0 modify everything */
153 final_sd = talloc_zero(mem_ctx, struct security_descriptor);
154 final_sd->revision = SECURITY_DESCRIPTOR_REVISION_1;
155 final_sd->type = SEC_DESC_SELF_RELATIVE;
157 if (sd_flags & (SECINFO_OWNER)) {
158 final_sd->owner_sid = talloc_memdup(mem_ctx, new_sd->owner_sid, sizeof(struct dom_sid));
159 final_sd->type |= new_sd->type & SEC_DESC_OWNER_DEFAULTED;
162 final_sd->owner_sid = talloc_memdup(mem_ctx, old_sd->owner_sid, sizeof(struct dom_sid));
163 final_sd->type |= old_sd->type & SEC_DESC_OWNER_DEFAULTED;
166 if (sd_flags & (SECINFO_GROUP)) {
167 final_sd->group_sid = talloc_memdup(mem_ctx, new_sd->group_sid, sizeof(struct dom_sid));
168 final_sd->type |= new_sd->type & SEC_DESC_GROUP_DEFAULTED;
171 final_sd->group_sid = talloc_memdup(mem_ctx, old_sd->group_sid, sizeof(struct dom_sid));
172 final_sd->type |= old_sd->type & SEC_DESC_GROUP_DEFAULTED;
175 if (sd_flags & (SECINFO_SACL)) {
176 final_sd->sacl = security_acl_dup(mem_ctx,new_sd->sacl);
177 final_sd->type |= new_sd->type & (SEC_DESC_SACL_PRESENT |
178 SEC_DESC_SACL_DEFAULTED|SEC_DESC_SACL_AUTO_INHERIT_REQ |
179 SEC_DESC_SACL_AUTO_INHERITED|SEC_DESC_SACL_PROTECTED |
180 SEC_DESC_SERVER_SECURITY);
182 else if (old_sd && old_sd->sacl) {
183 final_sd->sacl = security_acl_dup(mem_ctx,old_sd->sacl);
184 final_sd->type |= old_sd->type & (SEC_DESC_SACL_PRESENT |
185 SEC_DESC_SACL_DEFAULTED|SEC_DESC_SACL_AUTO_INHERIT_REQ |
186 SEC_DESC_SACL_AUTO_INHERITED|SEC_DESC_SACL_PROTECTED |
187 SEC_DESC_SERVER_SECURITY);
190 if (sd_flags & (SECINFO_DACL)) {
191 final_sd->dacl = security_acl_dup(mem_ctx,new_sd->dacl);
192 final_sd->type |= new_sd->type & (SEC_DESC_DACL_PRESENT |
193 SEC_DESC_DACL_DEFAULTED|SEC_DESC_DACL_AUTO_INHERIT_REQ |
194 SEC_DESC_DACL_AUTO_INHERITED|SEC_DESC_DACL_PROTECTED |
195 SEC_DESC_DACL_TRUSTED);
197 else if (old_sd && old_sd->dacl) {
198 final_sd->dacl = security_acl_dup(mem_ctx,old_sd->dacl);
199 final_sd->type |= old_sd->type & (SEC_DESC_DACL_PRESENT |
200 SEC_DESC_DACL_DEFAULTED|SEC_DESC_DACL_AUTO_INHERIT_REQ |
201 SEC_DESC_DACL_AUTO_INHERITED|SEC_DESC_DACL_PROTECTED |
202 SEC_DESC_DACL_TRUSTED);
204 /* not so sure about this */
205 final_sd->type |= new_sd->type & SEC_DESC_RM_CONTROL_VALID;
209 static DATA_BLOB *get_new_descriptor(struct ldb_module *module,
212 const struct dsdb_class *objectclass,
213 const struct ldb_val *parent,
214 const struct ldb_val *object,
215 const struct ldb_val *old_sd,
218 struct security_descriptor *user_descriptor = NULL, *parent_descriptor = NULL;
219 struct security_descriptor *old_descriptor = NULL;
220 struct security_descriptor *new_sd, *final_sd;
221 DATA_BLOB *linear_sd;
222 enum ndr_err_code ndr_err;
223 struct ldb_context *ldb = ldb_module_get_ctx(module);
224 struct auth_session_info *session_info
225 = ldb_get_opaque(ldb, "sessionInfo");
226 const struct dom_sid *domain_sid = samdb_domain_sid(ldb);
228 struct dom_sid *default_owner;
229 struct dom_sid *default_group;
232 user_descriptor = talloc(mem_ctx, struct security_descriptor);
233 if (!user_descriptor) {
236 ndr_err = ndr_pull_struct_blob(object, user_descriptor,
238 (ndr_pull_flags_fn_t)ndr_pull_security_descriptor);
240 if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
241 talloc_free(user_descriptor);
245 user_descriptor = get_sd_unpacked(module, mem_ctx, objectclass);
249 old_descriptor = talloc(mem_ctx, struct security_descriptor);
250 if (!old_descriptor) {
253 ndr_err = ndr_pull_struct_blob(old_sd, old_descriptor,
255 (ndr_pull_flags_fn_t)ndr_pull_security_descriptor);
257 if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
258 talloc_free(old_descriptor);
264 parent_descriptor = talloc(mem_ctx, struct security_descriptor);
265 if (!parent_descriptor) {
268 ndr_err = ndr_pull_struct_blob(parent, parent_descriptor,
270 (ndr_pull_flags_fn_t)ndr_pull_security_descriptor);
272 if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
273 talloc_free(parent_descriptor);
278 default_owner = get_default_ag(mem_ctx, dn,
279 session_info->security_token, ldb);
280 default_group = get_default_group(mem_ctx, ldb, default_owner);
281 new_sd = create_security_descriptor(mem_ctx, parent_descriptor, user_descriptor, true,
282 NULL, SEC_DACL_AUTO_INHERIT|SEC_SACL_AUTO_INHERIT,
283 session_info->security_token,
284 default_owner, default_group,
285 map_generic_rights_ds);
289 final_sd = descr_handle_sd_flags(mem_ctx, new_sd, old_descriptor, sd_flags);
295 if (final_sd->dacl) {
296 final_sd->dacl->revision = SECURITY_ACL_REVISION_ADS;
298 if (final_sd->sacl) {
299 final_sd->sacl->revision = SECURITY_ACL_REVISION_ADS;
302 sddl_sd = sddl_encode(mem_ctx, final_sd, domain_sid);
303 DEBUG(10, ("Object %s created with desriptor %s\n\n", ldb_dn_get_linearized(dn), sddl_sd));
305 linear_sd = talloc(mem_ctx, DATA_BLOB);
310 ndr_err = ndr_push_struct_blob(linear_sd, mem_ctx,
312 (ndr_push_flags_fn_t)ndr_push_security_descriptor);
313 if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
320 static DATA_BLOB *descr_get_descriptor_to_show(struct ldb_module *module,
325 struct security_descriptor *old_sd, *final_sd;
326 DATA_BLOB *linear_sd;
327 enum ndr_err_code ndr_err;
329 old_sd = talloc(mem_ctx, struct security_descriptor);
333 ndr_err = ndr_pull_struct_blob(sd, old_sd,
335 (ndr_pull_flags_fn_t)ndr_pull_security_descriptor);
337 if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
342 final_sd = descr_handle_sd_flags(mem_ctx, old_sd, NULL, sd_flags);
348 linear_sd = talloc(mem_ctx, DATA_BLOB);
353 ndr_err = ndr_push_struct_blob(linear_sd, mem_ctx,
355 (ndr_push_flags_fn_t)ndr_push_security_descriptor);
356 if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
363 static struct descriptor_context *descriptor_init_context(struct ldb_module *module,
364 struct ldb_request *req)
366 struct ldb_context *ldb;
367 struct descriptor_context *ac;
369 ldb = ldb_module_get_ctx(module);
371 ac = talloc_zero(req, struct descriptor_context);
373 ldb_set_errstring(ldb, "Out of Memory");
382 static int descriptor_search_callback(struct ldb_request *req, struct ldb_reply *ares)
384 struct descriptor_context *ac;
385 struct ldb_control *sd_control;
386 struct ldb_val *sd_val = NULL;
387 struct ldb_message_element *sd_el;
390 uint32_t sd_flags = 0;
392 ac = talloc_get_type(req->context, struct descriptor_context);
395 ret = LDB_ERR_OPERATIONS_ERROR;
398 if (ares->error != LDB_SUCCESS) {
399 return ldb_module_done(ac->req, ares->controls,
400 ares->response, ares->error);
403 sd_control = ldb_request_get_control(ac->req, LDB_CONTROL_SD_FLAGS_OID);
405 struct ldb_sd_flags_control *sdctr = (struct ldb_sd_flags_control *)sd_control->data;
406 sd_flags = sdctr->secinfo_flags;
407 /* we only care for the last 4 bits */
408 sd_flags = sd_flags & 0x0000000F;
410 /* MS-ADTS 3.1.1.3.4.1.11 says that no bits
416 switch (ares->type) {
417 case LDB_REPLY_ENTRY:
419 sd_el = ldb_msg_find_element(ares->message, "nTSecurityDescriptor");
421 sd_val = sd_el->values;
425 show_sd = descr_get_descriptor_to_show(ac->module, ac->req,
428 ret = LDB_ERR_OPERATIONS_ERROR;
431 ldb_msg_remove_attr(ares->message, "nTSecurityDescriptor");
432 ret = ldb_msg_add_steal_value(ares->message, "nTSecurityDescriptor", show_sd);
433 if (ret != LDB_SUCCESS) {
437 return ldb_module_send_entry(ac->req, ares->message, ares->controls);
439 case LDB_REPLY_REFERRAL:
440 return ldb_module_send_referral(ac->req, ares->referral);
443 return ldb_module_done(ac->req, ares->controls,
444 ares->response, ares->error);
449 return ldb_module_done(ac->req, NULL, NULL, ret);
452 static int descriptor_add(struct ldb_module *module, struct ldb_request *req)
454 struct ldb_context *ldb;
455 struct ldb_request *add_req;
456 struct ldb_message *msg;
457 struct ldb_result *parent_res;
458 const struct ldb_val *parent_sd = NULL;
459 const struct ldb_val *user_sd;
460 struct ldb_dn *parent_dn, *dn, *nc_root;
461 struct ldb_message_element *objectclass_element, *sd_element;
463 const struct dsdb_schema *schema;
465 const struct dsdb_class *objectclass;
466 static const char * const parent_attrs[] = { "nTSecurityDescriptor", NULL };
468 ldb = ldb_module_get_ctx(module);
469 dn = req->op.add.message->dn;
470 user_sd = ldb_msg_find_ldb_val(req->op.add.message, "nTSecurityDescriptor");
471 sd_element = ldb_msg_find_element(req->op.add.message, "nTSecurityDescriptor");
472 /* nTSecurityDescriptor without a value is an error, letting through so it is handled */
473 if (user_sd == NULL && sd_element) {
474 return ldb_next_request(module, req);
477 ldb_debug(ldb, LDB_DEBUG_TRACE,"descriptor_add: %s\n", ldb_dn_get_linearized(dn));
479 /* do not manipulate our control entries */
480 if (ldb_dn_is_special(dn)) {
481 return ldb_next_request(module, req);
484 /* if the object has a parent, retrieve its SD to
485 * use for calculation. unfortunately we do not yet have
487 parent_dn = ldb_dn_get_parent(req, dn);
488 if (parent_dn == NULL) {
492 ret = dsdb_find_nc_root(ldb, req, dn, &nc_root);
493 if (ret != LDB_SUCCESS) {
494 ldb_debug(ldb, LDB_DEBUG_TRACE,"descriptor_add: Could not find NC root for %s\n",
495 ldb_dn_get_linearized(dn));
499 if (ldb_dn_compare(dn, nc_root) != 0) {
500 /* we aren't any NC */
501 ret = dsdb_module_search_dn(module, req, &parent_res, parent_dn,
503 DSDB_FLAG_NEXT_MODULE,
505 if (ret != LDB_SUCCESS) {
506 ldb_debug(ldb, LDB_DEBUG_TRACE,"descriptor_add: Could not find SD for %s\n",
507 ldb_dn_get_linearized(parent_dn));
510 if (parent_res->count != 1) {
511 return ldb_operr(ldb);
513 parent_sd = ldb_msg_find_ldb_val(parent_res->msgs[0], "nTSecurityDescriptor");
516 schema = dsdb_get_schema(ldb, req);
518 objectclass_element = ldb_msg_find_element(req->op.add.message, "objectClass");
519 if (objectclass_element == NULL) {
520 return ldb_operr(ldb);
523 objectclass = get_last_structural_class(schema, objectclass_element, req);
524 if (objectclass == NULL) {
525 return ldb_operr(ldb);
528 sd = get_new_descriptor(module, dn, req,
529 objectclass, parent_sd,
531 msg = ldb_msg_copy_shallow(req, req->op.add.message);
533 if (sd_element != NULL) {
534 sd_element->values[0] = *sd;
536 ret = ldb_msg_add_steal_value(msg,
537 "nTSecurityDescriptor",
539 if (ret != LDB_SUCCESS) {
545 ret = ldb_build_add_req(&add_req, ldb, req,
548 req, dsdb_next_callback,
550 LDB_REQ_SET_LOCATION(add_req);
551 if (ret != LDB_SUCCESS) {
552 return ldb_error(ldb, ret,
553 "descriptor_add: Error creating new add request.");
556 return ldb_next_request(module, add_req);
559 static int descriptor_modify(struct ldb_module *module, struct ldb_request *req)
561 struct ldb_context *ldb;
562 struct ldb_control *sd_recalculate_control, *sd_flags_control;
563 struct ldb_request *mod_req;
564 struct ldb_message *msg;
565 struct ldb_result *current_res, *parent_res;
566 const struct ldb_val *old_sd = NULL;
567 const struct ldb_val *parent_sd = NULL;
568 const struct ldb_val *user_sd;
569 struct ldb_dn *parent_dn, *dn;
570 struct ldb_message_element *objectclass_element;
572 uint32_t instanceType, sd_flags = 0;
573 const struct dsdb_schema *schema;
575 const struct dsdb_class *objectclass;
576 static const char * const parent_attrs[] = { "nTSecurityDescriptor", NULL };
577 static const char * const current_attrs[] = { "nTSecurityDescriptor",
579 "objectClass", NULL };
580 ldb = ldb_module_get_ctx(module);
581 dn = req->op.mod.message->dn;
582 user_sd = ldb_msg_find_ldb_val(req->op.mod.message, "nTSecurityDescriptor");
583 /* This control forces the recalculation of the SD also when
584 * no modification is performed. */
585 sd_recalculate_control = ldb_request_get_control(req,
586 LDB_CONTROL_RECALCULATE_SD_OID);
587 if (!user_sd && !sd_recalculate_control) {
588 return ldb_next_request(module, req);
591 ldb_debug(ldb, LDB_DEBUG_TRACE,"descriptor_modify: %s\n", ldb_dn_get_linearized(dn));
593 /* do not manipulate our control entries */
594 if (ldb_dn_is_special(dn)) {
595 return ldb_next_request(module, req);
598 ret = dsdb_module_search_dn(module, req, ¤t_res, dn,
600 DSDB_FLAG_NEXT_MODULE,
602 if (ret != LDB_SUCCESS) {
603 ldb_debug(ldb, LDB_DEBUG_ERROR,"descriptor_modify: Could not find %s\n",
604 ldb_dn_get_linearized(dn));
608 instanceType = ldb_msg_find_attr_as_uint(current_res->msgs[0],
610 /* if the object has a parent, retrieve its SD to
611 * use for calculation */
612 if (!ldb_dn_is_null(current_res->msgs[0]->dn) &&
613 !(instanceType & INSTANCE_TYPE_IS_NC_HEAD)) {
614 parent_dn = ldb_dn_get_parent(req, dn);
615 if (parent_dn == NULL) {
618 ret = dsdb_module_search_dn(module, req, &parent_res, parent_dn,
620 DSDB_FLAG_NEXT_MODULE,
622 if (ret != LDB_SUCCESS) {
623 ldb_debug(ldb, LDB_DEBUG_ERROR, "descriptor_modify: Could not find SD for %s\n",
624 ldb_dn_get_linearized(parent_dn));
627 if (parent_res->count != 1) {
628 return ldb_operr(ldb);
630 parent_sd = ldb_msg_find_ldb_val(parent_res->msgs[0], "nTSecurityDescriptor");
632 sd_flags_control = ldb_request_get_control(req, LDB_CONTROL_SD_FLAGS_OID);
634 schema = dsdb_get_schema(ldb, req);
636 objectclass_element = ldb_msg_find_element(current_res->msgs[0], "objectClass");
637 if (objectclass_element == NULL) {
638 return ldb_operr(ldb);
641 objectclass = get_last_structural_class(schema, objectclass_element, req);
642 if (objectclass == NULL) {
643 return ldb_operr(ldb);
646 if (sd_flags_control) {
647 struct ldb_sd_flags_control *sdctr = (struct ldb_sd_flags_control *)sd_flags_control->data;
648 sd_flags = sdctr->secinfo_flags;
649 /* we only care for the last 4 bits */
650 sd_flags = sd_flags & 0x0000000F;
653 old_sd = ldb_msg_find_ldb_val(current_res->msgs[0], "nTSecurityDescriptor");
656 sd = get_new_descriptor(module, dn, req,
657 objectclass, parent_sd,
658 user_sd, old_sd, sd_flags);
659 msg = ldb_msg_copy_shallow(req, req->op.mod.message);
661 struct ldb_message_element *sd_element;
662 if (user_sd != NULL) {
663 sd_element = ldb_msg_find_element(msg,
664 "nTSecurityDescriptor");
665 sd_element->values[0] = *sd;
666 } else if (sd_recalculate_control != NULL) {
667 /* In this branch we really do force the recalculation
669 ldb_msg_remove_attr(msg, "nTSecurityDescriptor");
671 ret = ldb_msg_add_steal_value(msg,
672 "nTSecurityDescriptor",
674 if (ret != LDB_SUCCESS) {
675 return ldb_error(ldb, ret,
676 "descriptor_modify: Could not replace SD value in message.");
678 sd_element = ldb_msg_find_element(msg,
679 "nTSecurityDescriptor");
680 sd_element->flags = LDB_FLAG_MOD_REPLACE;
684 /* mark the controls as non-critical since we've handled them */
685 if (sd_flags_control != NULL) {
686 sd_flags_control->critical = 0;
688 if (sd_recalculate_control != NULL) {
689 sd_recalculate_control->critical = 0;
692 ret = ldb_build_mod_req(&mod_req, ldb, req,
698 LDB_REQ_SET_LOCATION(mod_req);
699 if (ret != LDB_SUCCESS) {
703 return ldb_next_request(module, mod_req);
706 static int descriptor_search(struct ldb_module *module, struct ldb_request *req)
709 struct ldb_context *ldb;
710 struct ldb_control *sd_control;
711 struct ldb_request *down_req;
712 struct descriptor_context *ac;
714 sd_control = ldb_request_get_control(req, LDB_CONTROL_SD_FLAGS_OID);
716 return ldb_next_request(module, req);
719 ldb = ldb_module_get_ctx(module);
720 ac = descriptor_init_context(module, req);
722 return ldb_operr(ldb);
725 ret = ldb_build_search_req_ex(&down_req, ldb, ac,
727 req->op.search.scope,
729 req->op.search.attrs,
731 ac, descriptor_search_callback,
733 LDB_REQ_SET_LOCATION(down_req);
734 if (ret != LDB_SUCCESS) {
737 /* mark it as handled */
739 sd_control->critical = 0;
742 return ldb_next_request(ac->module, down_req);
745 static int descriptor_rename(struct ldb_module *module, struct ldb_request *req)
747 struct ldb_context *ldb = ldb_module_get_ctx(module);
748 ldb_debug(ldb, LDB_DEBUG_TRACE,"descriptor_rename: %s\n", ldb_dn_get_linearized(req->op.rename.olddn));
750 /* do not manipulate our control entries */
751 if (ldb_dn_is_special(req->op.rename.olddn)) {
752 return ldb_next_request(module, req);
755 return ldb_next_request(module, req);
758 static int descriptor_init(struct ldb_module *module)
760 int ret = ldb_mod_register_control(module, LDB_CONTROL_SD_FLAGS_OID);
761 struct ldb_context *ldb = ldb_module_get_ctx(module);
762 if (ret != LDB_SUCCESS) {
763 ldb_debug(ldb, LDB_DEBUG_ERROR,
764 "descriptor: Unable to register control with rootdse!\n");
765 return ldb_operr(ldb);
767 return ldb_next_init(module);
771 static const struct ldb_module_ops ldb_descriptor_module_ops = {
772 .name = "descriptor",
773 .search = descriptor_search,
774 .add = descriptor_add,
775 .modify = descriptor_modify,
776 .rename = descriptor_rename,
777 .init_context = descriptor_init
780 int ldb_descriptor_module_init(const char *version)
782 LDB_MODULE_CHECK_VERSION(version);
783 return ldb_register_module(&ldb_descriptor_module_ops);