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-rw-r--r--source4/dsdb/samdb/ldb_modules/config.mk12
-rw-r--r--source4/dsdb/samdb/ldb_modules/descriptor.c459
-rw-r--r--source4/dsdb/samdb/ldb_modules/objectclass.c65
3 files changed, 479 insertions, 57 deletions
diff --git a/source4/dsdb/samdb/ldb_modules/config.mk b/source4/dsdb/samdb/ldb_modules/config.mk
index 18144dd2c5..f868f8a9db 100644
--- a/source4/dsdb/samdb/ldb_modules/config.mk
+++ b/source4/dsdb/samdb/ldb_modules/config.mk
@@ -334,3 +334,15 @@ INIT_FUNCTION = LDB_MODULE(operational)
################################################
ldb_operational_OBJ_FILES = $(dsdbsrcdir)/samdb/ldb_modules/operational.o
+
+################################################
+# Start MODULE ldb_descriptor
+[MODULE::ldb_descriptor]
+INIT_FUNCTION = LDB_MODULE(descriptor)
+CFLAGS = -Ilib/ldb/include
+PRIVATE_DEPENDENCIES = LIBTALLOC LIBEVENTS LIBSECURITY NDR_SECURITY SAMDB
+SUBSYSTEM = LIBLDB
+# End MODULE ldb_descriptor
+################################################
+
+ldb_descriptor_OBJ_FILES = $(dsdbsrcdir)/samdb/ldb_modules/descriptor.o
diff --git a/source4/dsdb/samdb/ldb_modules/descriptor.c b/source4/dsdb/samdb/ldb_modules/descriptor.c
new file mode 100644
index 0000000000..a22cce76a1
--- /dev/null
+++ b/source4/dsdb/samdb/ldb_modules/descriptor.c
@@ -0,0 +1,459 @@
+ /*
+ ldb database library
+
+ Copyright (C) Simo Sorce 2006-2008
+ Copyright (C) Andrew Bartlett <abartlet@samba.org> 2005-2007
+ Copyright (C) Nadezhda Ivanova 2009
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 3 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>.
+*/
+
+/*
+ * Name: ldb
+ *
+ * Component: DS Security descriptor module
+ *
+ * Description:
+ * - Calculate the security descriptor of a newly created object
+ * - Perform sd recalculation on a move operation
+ * - Handle sd modification invariants
+ *
+ * Author: Nadezhda Ivanova
+ */
+
+#include "includes.h"
+#include "ldb_module.h"
+#include "dlinklist.h"
+#include "dsdb/samdb/samdb.h"
+#include "librpc/ndr/libndr.h"
+#include "librpc/gen_ndr/ndr_security.h"
+#include "libcli/security/security.h"
+#include "auth/auth.h"
+#include "param/param.h"
+
+struct descriptor_context {
+ struct ldb_module *module;
+ struct ldb_request *req;
+ struct ldb_reply *search_res;
+ int (*step_fn)(struct descriptor_context *);
+};
+
+static struct dsdb_class * get_last_structural_class(const struct dsdb_schema *schema, struct ldb_message_element *element)
+{
+ struct dsdb_class *last_class = NULL;
+ int i;
+ for (i = 0; i < element->num_values; i++){
+ if (!last_class)
+ last_class = dsdb_class_by_lDAPDisplayName_ldb_val(schema, &element->values[i]);
+ else {
+ struct dsdb_class *tmp_class = dsdb_class_by_lDAPDisplayName_ldb_val(schema, &element->values[i]);
+ if (tmp_class->subClass_order > last_class->subClass_order)
+ last_class = tmp_class;
+ }
+ }
+ return last_class;
+}
+
+struct dom_sid *get_default_ag(TALLOC_CTX *mem_ctx,
+ struct ldb_dn *dn,
+ struct security_token *token,
+ struct ldb_context *ldb)
+{
+ TALLOC_CTX *tmp_ctx = talloc_new(mem_ctx);
+ struct ldb_dn *root_base_dn = ldb_get_root_basedn(ldb);
+ struct ldb_dn *schema_base_dn = ldb_get_schema_basedn(ldb);
+ struct ldb_dn *config_base_dn = ldb_get_config_basedn(ldb);
+ const struct dom_sid *domain_sid = samdb_domain_sid(ldb);
+ struct dom_sid *da_sid = dom_sid_add_rid(tmp_ctx, domain_sid, DOMAIN_RID_ADMINS);
+ struct dom_sid *ea_sid = dom_sid_add_rid(tmp_ctx, domain_sid, DOMAIN_RID_ENTERPRISE_ADMINS);
+ struct dom_sid *sa_sid = dom_sid_add_rid(tmp_ctx, domain_sid, DOMAIN_RID_SCHEMA_ADMINS);
+ struct dom_sid *dag_sid;
+
+ if (ldb_dn_compare_base(schema_base_dn, dn) == 0){
+ if (security_token_has_sid(token, sa_sid))
+ dag_sid = dom_sid_dup(mem_ctx, sa_sid);
+ else if (security_token_has_sid(token, ea_sid))
+ dag_sid = dom_sid_dup(mem_ctx, ea_sid);
+ else if (security_token_has_sid(token, da_sid))
+ dag_sid = dom_sid_dup(mem_ctx, da_sid);
+ else
+ dag_sid = NULL;
+ }
+ else if (ldb_dn_compare_base(config_base_dn, dn) == 0){
+ if (security_token_has_sid(token, ea_sid))
+ dag_sid = dom_sid_dup(mem_ctx, ea_sid);
+ else if (security_token_has_sid(token, da_sid))
+ dag_sid = dom_sid_dup(mem_ctx, da_sid);
+ else
+ dag_sid = NULL;
+ }
+ else if (ldb_dn_compare_base(root_base_dn, dn) == 0){
+ if (security_token_has_sid(token, da_sid))
+ dag_sid = dom_sid_dup(mem_ctx, da_sid);
+ else if (security_token_has_sid(token, ea_sid))
+ dag_sid = dom_sid_dup(mem_ctx, ea_sid);
+ else
+ dag_sid = NULL;
+ }
+ else
+ dag_sid = NULL;
+
+ talloc_free(tmp_ctx);
+ return dag_sid;
+}
+
+static struct security_descriptor *get_sd_unpacked(struct ldb_module *module, TALLOC_CTX *mem_ctx,
+ const struct dsdb_class *objectclass)
+{
+ struct ldb_context *ldb = ldb_module_get_ctx(module);
+ struct security_descriptor *sd;
+ const struct dom_sid *domain_sid = samdb_domain_sid(ldb);
+
+ if (!objectclass->defaultSecurityDescriptor || !domain_sid) {
+ return NULL;
+ }
+
+ sd = sddl_decode(mem_ctx,
+ objectclass->defaultSecurityDescriptor,
+ domain_sid);
+ return sd;
+}
+
+static struct dom_sid *get_default_group(TALLOC_CTX *mem_ctx,
+ struct ldb_context *ldb,
+ struct dom_sid *dag)
+{
+ int *domainFunctionality;
+
+ domainFunctionality = talloc_get_type(ldb_get_opaque(ldb, "domainFunctionality"), int);
+
+ if (*domainFunctionality && (*domainFunctionality >= DS_BEHAVIOR_WIN2008)){
+ return dag;
+ }
+
+ return NULL;
+}
+
+static DATA_BLOB *get_new_descriptor(struct ldb_module *module,
+ struct ldb_dn *dn,
+ TALLOC_CTX *mem_ctx,
+ const struct dsdb_class *objectclass,
+ struct ldb_val *parent,
+ struct ldb_val *object)
+{
+ struct security_descriptor *user_descriptor = NULL, *parent_descriptor = NULL;
+ struct security_descriptor *new_sd;
+ DATA_BLOB *linear_sd;
+ enum ndr_err_code ndr_err;
+ struct ldb_context *ldb = ldb_module_get_ctx(module);
+ struct auth_session_info *session_info
+ = ldb_get_opaque(ldb, "sessionInfo");
+ const struct dom_sid *domain_sid = samdb_domain_sid(ldb);
+ char *sddl_sd;
+ struct dom_sid *default_owner;
+ struct dom_sid *default_group;
+
+ if (object){
+ user_descriptor = talloc(mem_ctx, struct security_descriptor);
+ if(!user_descriptor)
+ return NULL;
+ ndr_err = ndr_pull_struct_blob(object, user_descriptor, NULL,
+ user_descriptor,
+ (ndr_pull_flags_fn_t)ndr_pull_security_descriptor);
+
+ if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)){
+ talloc_free(user_descriptor);
+ return NULL;
+ }
+ }
+ else
+ user_descriptor = get_sd_unpacked(module, mem_ctx, objectclass);
+
+ if (parent){
+ parent_descriptor = talloc(mem_ctx, struct security_descriptor);
+ if(!parent_descriptor)
+ return NULL;
+ ndr_err = ndr_pull_struct_blob(parent, parent_descriptor, NULL,
+ parent_descriptor,
+ (ndr_pull_flags_fn_t)ndr_pull_security_descriptor);
+
+ if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)){
+ talloc_free(parent_descriptor);
+ return NULL;
+ }
+ }
+ default_owner = get_default_ag(mem_ctx, dn,
+ session_info->security_token, ldb);
+ default_group = get_default_group(mem_ctx, ldb, default_owner);
+ new_sd = create_security_descriptor(mem_ctx, parent_descriptor, user_descriptor, true,
+ NULL, SEC_DACL_AUTO_INHERIT|SEC_SACL_AUTO_INHERIT,
+ session_info->security_token,
+ default_owner, default_group,
+ map_generic_rights_ds);
+ if (!new_sd)
+ return NULL;
+
+
+ sddl_sd = sddl_encode(mem_ctx, new_sd, domain_sid);
+ DEBUG(10, ("Object %s created with desriptor %s", ldb_dn_get_linearized(dn), sddl_sd));
+
+ linear_sd = talloc(mem_ctx, DATA_BLOB);
+ if (!linear_sd) {
+ return NULL;
+ }
+
+ ndr_err = ndr_push_struct_blob(linear_sd, mem_ctx,
+ lp_iconv_convenience(ldb_get_opaque(ldb, "loadparm")),
+ new_sd,
+ (ndr_push_flags_fn_t)ndr_push_security_descriptor);
+ if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
+ return NULL;
+ }
+
+ return linear_sd;
+}
+
+static struct descriptor_context *descriptor_init_context(struct ldb_module *module,
+ struct ldb_request *req)
+{
+ struct ldb_context *ldb;
+ struct descriptor_context *ac;
+
+ ldb = ldb_module_get_ctx(module);
+
+ ac = talloc_zero(req, struct descriptor_context);
+ if (ac == NULL) {
+ ldb_set_errstring(ldb, "Out of Memory");
+ return NULL;
+ }
+
+ ac->module = module;
+ ac->req = req;
+ return ac;
+}
+
+static int get_search_callback(struct ldb_request *req, struct ldb_reply *ares)
+{
+ struct ldb_context *ldb;
+ struct descriptor_context *ac;
+ int ret;
+
+ ac = talloc_get_type(req->context, struct descriptor_context);
+ ldb = ldb_module_get_ctx(ac->module);
+
+ if (!ares) {
+ return ldb_module_done(ac->req, NULL, NULL,
+ LDB_ERR_OPERATIONS_ERROR);
+ }
+ if (ares->error != LDB_SUCCESS &&
+ ares->error != LDB_ERR_NO_SUCH_OBJECT) {
+ return ldb_module_done(ac->req, ares->controls,
+ ares->response, ares->error);
+ }
+
+ switch (ares->type) {
+ case LDB_REPLY_ENTRY:
+ if (ac->search_res != NULL) {
+ ldb_set_errstring(ldb, "Too many results");
+ talloc_free(ares);
+ return ldb_module_done(ac->req, NULL, NULL,
+ LDB_ERR_OPERATIONS_ERROR);
+ }
+
+ ac->search_res = talloc_steal(ac, ares);
+ break;
+
+ case LDB_REPLY_REFERRAL:
+ /* ignore */
+ talloc_free(ares);
+ break;
+
+ case LDB_REPLY_DONE:
+ talloc_free(ares);
+ ret = ac->step_fn(ac);
+ if (ret != LDB_SUCCESS) {
+ return ldb_module_done(ac->req, NULL, NULL, ret);
+ }
+ break;
+ }
+
+ return LDB_SUCCESS;
+}
+static int descriptor_op_callback(struct ldb_request *req, struct ldb_reply *ares)
+{
+ struct descriptor_context *ac;
+
+ ac = talloc_get_type(req->context, struct descriptor_context);
+
+ if (!ares) {
+ return ldb_module_done(ac->req, NULL, NULL,
+ LDB_ERR_OPERATIONS_ERROR);
+ }
+ if (ares->error != LDB_SUCCESS) {
+ return ldb_module_done(ac->req, ares->controls,
+ ares->response, ares->error);
+ }
+
+ if (ares->type != LDB_REPLY_DONE) {
+ talloc_free(ares);
+ return ldb_module_done(ac->req, NULL, NULL,
+ LDB_ERR_OPERATIONS_ERROR);
+ }
+
+ return ldb_module_done(ac->req, ares->controls,
+ ares->response, ares->error);
+}
+
+static int descriptor_do_add(struct descriptor_context *ac)
+{
+ struct ldb_context *ldb;
+ const struct dsdb_schema *schema;
+ struct ldb_request *add_req;
+ struct ldb_message_element *objectclass_element, *sd_element = NULL;
+ struct ldb_message *msg;
+ TALLOC_CTX *mem_ctx;
+ int ret;
+ struct ldb_val *sd_val = NULL, *parentsd_val = NULL;
+ DATA_BLOB *sd;
+ struct dsdb_class *objectclass;
+
+ ldb = ldb_module_get_ctx(ac->module);
+ schema = dsdb_get_schema(ldb);
+
+ mem_ctx = talloc_new(ac);
+ if (mem_ctx == NULL) {
+ return LDB_ERR_OPERATIONS_ERROR;
+ }
+
+ msg = ldb_msg_copy_shallow(ac, ac->req->op.add.message);
+
+ /* get the security descriptor values*/
+ sd_element = ldb_msg_find_element(msg, "nTSecurityDescriptor");
+ objectclass_element = ldb_msg_find_element(msg, "objectClass");
+ objectclass = get_last_structural_class(schema, objectclass_element);
+
+ if (!objectclass)
+ return LDB_ERR_OPERATIONS_ERROR;
+
+ if (sd_element)
+ sd_val = &sd_element->values[0];
+ /* NC's have no parent */
+ if ((ldb_dn_compare(msg->dn, (ldb_get_schema_basedn(ldb))) == 0) ||
+ (ldb_dn_compare(msg->dn, (ldb_get_config_basedn(ldb))) == 0) ||
+ (ldb_dn_compare(msg->dn, (ldb_get_root_basedn(ldb))) == 0))
+ parentsd_val = NULL;
+ else if (ac->search_res != NULL)
+ parentsd_val = ldb_msg_find_ldb_val(ac->search_res->message, "nTSecurityDescriptor");
+
+
+ /* get the parent descriptor and the one provided. If not provided, get the default.*/
+ /* convert to security descriptor and calculate */
+ sd = get_new_descriptor(ac->module, msg->dn, mem_ctx, objectclass,
+ parentsd_val, sd_val);
+ if (sd) {
+ ldb_msg_add_steal_value(msg, "nTSecurityDescriptor", sd);
+ }
+
+ talloc_free(mem_ctx);
+ ret = ldb_msg_sanity_check(ldb, msg);
+
+ if (ret != LDB_SUCCESS) {
+ return ret;
+ }
+
+ ret = ldb_build_add_req(&add_req, ldb, ac,
+ msg,
+ ac->req->controls,
+ ac, descriptor_op_callback,
+ ac->req);
+ if (ret != LDB_SUCCESS) {
+ return ret;
+ }
+
+ /* perform the add */
+ return ldb_next_request(ac->module, add_req);
+}
+
+static int descriptor_add(struct ldb_module *module, struct ldb_request *req)
+{
+ struct ldb_context *ldb;
+ struct ldb_request *search_req;
+ struct descriptor_context *ac;
+ struct ldb_dn *parent_dn;
+ int ret;
+ static const char * const descr_attrs[] = { "nTSecurityDescriptor", NULL };
+
+ ldb = ldb_module_get_ctx(module);
+
+ ldb_debug(ldb, LDB_DEBUG_TRACE, "descriptor_add\n");
+
+ if (ldb_dn_is_special(req->op.add.message->dn)) {
+ return ldb_next_request(module, req);
+ }
+
+ ac = descriptor_init_context(module, req);
+ if (ac == NULL) {
+ return LDB_ERR_OPERATIONS_ERROR;
+ }
+
+ /* If there isn't a parent, just go on to the add processing */
+ if (ldb_dn_get_comp_num(ac->req->op.add.message->dn) == 1) {
+ return descriptor_do_add(ac);
+ }
+
+ /* get copy of parent DN */
+ parent_dn = ldb_dn_get_parent(ac, ac->req->op.add.message->dn);
+ if (parent_dn == NULL) {
+ ldb_oom(ldb);
+ return LDB_ERR_OPERATIONS_ERROR;
+ }
+
+ ret = ldb_build_search_req(&search_req, ldb,
+ ac, parent_dn, LDB_SCOPE_BASE,
+ "(objectClass=*)", descr_attrs,
+ NULL,
+ ac, get_search_callback,
+ req);
+ if (ret != LDB_SUCCESS) {
+ return ret;
+ }
+ talloc_steal(search_req, parent_dn);
+
+ ac->step_fn = descriptor_do_add;
+
+ return ldb_next_request(ac->module, search_req);
+}
+/* TODO */
+static int descriptor_modify(struct ldb_module *module, struct ldb_request *req)
+{
+ struct ldb_context *ldb = ldb_module_get_ctx(module);
+ ldb_debug(ldb, LDB_DEBUG_TRACE, "descriptor_modify\n");
+ return ldb_next_request(module, req);
+}
+/* TODO */
+static int descriptor_rename(struct ldb_module *module, struct ldb_request *req)
+{
+ struct ldb_context *ldb = ldb_module_get_ctx(module);
+ ldb_debug(ldb, LDB_DEBUG_TRACE, "descriptor_rename\n");
+ return ldb_next_request(module, req);
+}
+
+_PUBLIC_ const struct ldb_module_ops ldb_descriptor_module_ops = {
+ .name = "descriptor",
+ .add = descriptor_add,
+ .modify = descriptor_modify,
+ .rename = descriptor_rename,
+};
+
+
diff --git a/source4/dsdb/samdb/ldb_modules/objectclass.c b/source4/dsdb/samdb/ldb_modules/objectclass.c
index 6dbafac965..0246de130c 100644
--- a/source4/dsdb/samdb/ldb_modules/objectclass.c
+++ b/source4/dsdb/samdb/ldb_modules/objectclass.c
@@ -231,49 +231,6 @@ static int objectclass_sort(struct ldb_module *module,
return LDB_ERR_OBJECT_CLASS_VIOLATION;
}
-static DATA_BLOB *get_sd(struct ldb_module *module, TALLOC_CTX *mem_ctx,
- const struct dsdb_class *objectclass)
-{
- struct ldb_context *ldb = ldb_module_get_ctx(module);
- enum ndr_err_code ndr_err;
- DATA_BLOB *linear_sd;
- struct auth_session_info *session_info
- = ldb_get_opaque(ldb, "sessionInfo");
- struct security_descriptor *sd;
- const struct dom_sid *domain_sid = samdb_domain_sid(ldb);
-
- if (!objectclass->defaultSecurityDescriptor || !domain_sid) {
- return NULL;
- }
-
- sd = sddl_decode(mem_ctx,
- objectclass->defaultSecurityDescriptor,
- domain_sid);
-
- if (!sd || !session_info || !session_info->security_token) {
- return NULL;
- }
-
- sd->owner_sid = session_info->security_token->user_sid;
- sd->group_sid = session_info->security_token->group_sid;
-
- linear_sd = talloc(mem_ctx, DATA_BLOB);
- if (!linear_sd) {
- return NULL;
- }
-
- ndr_err = ndr_push_struct_blob(linear_sd, mem_ctx,
- lp_iconv_convenience(ldb_get_opaque(ldb, "loadparm")),
- sd,
- (ndr_push_flags_fn_t)ndr_push_security_descriptor);
- if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
- return NULL;
- }
-
- return linear_sd;
-
-}
-
static int get_search_callback(struct ldb_request *req, struct ldb_reply *ares)
{
struct ldb_context *ldb;
@@ -536,7 +493,6 @@ static int objectclass_do_add(struct oc_context *ac)
return LDB_ERR_UNWILLING_TO_PERFORM;
}
}
-
if (schema) {
ret = fix_attributes(ldb, schema, msg);
if (ret != LDB_SUCCESS) {
@@ -546,7 +502,7 @@ static int objectclass_do_add(struct oc_context *ac)
/* This is now the objectClass list from the database */
objectclass_element = ldb_msg_find_element(msg, "objectClass");
-
+
if (!objectclass_element) {
/* Where did it go? bail now... */
talloc_free(mem_ctx);
@@ -565,10 +521,10 @@ static int objectclass_do_add(struct oc_context *ac)
talloc_free(mem_ctx);
return ret;
}
-
+
/* We must completely replace the existing objectClass entry,
* because we need it sorted */
-
+
/* Move from the linked list back into an ldb msg */
for (current = sorted; current; current = current->next) {
value = talloc_strdup(msg, current->objectclass->lDAPDisplayName);
@@ -579,7 +535,7 @@ static int objectclass_do_add(struct oc_context *ac)
}
ret = ldb_msg_add_string(msg, "objectClass", value);
if (ret != LDB_SUCCESS) {
- ldb_set_errstring(ldb,
+ ldb_set_errstring(ldb,
"objectclass: could not re-add sorted "
"objectclass to modify msg");
talloc_free(mem_ctx);
@@ -589,6 +545,7 @@ static int objectclass_do_add(struct oc_context *ac)
if (!current->next) {
struct ldb_message_element *el;
int32_t systemFlags = 0;
+ DATA_BLOB *sd;
if (!ldb_msg_find_element(msg, "objectCategory")) {
value = talloc_strdup(msg, current->objectclass->defaultObjectCategory);
if (value == NULL) {
@@ -599,15 +556,9 @@ static int objectclass_do_add(struct oc_context *ac)
ldb_msg_add_string(msg, "objectCategory", value);
}
if (!ldb_msg_find_element(msg, "showInAdvancedViewOnly") && (current->objectclass->defaultHidingValue == true)) {
- ldb_msg_add_string(msg, "showInAdvancedViewOnly",
+ ldb_msg_add_string(msg, "showInAdvancedViewOnly",
"TRUE");
}
- if (!ldb_msg_find_element(msg, "nTSecurityDescriptor")) {
- DATA_BLOB *sd = get_sd(ac->module, mem_ctx, current->objectclass);
- if (sd) {
- ldb_msg_add_steal_value(msg, "nTSecurityDescriptor", sd);
- }
- }
/* There are very special rules for systemFlags, see MS-ADTS 3.1.1.5.2.4 */
el = ldb_msg_find_element(msg, "systemFlags");
@@ -619,7 +570,7 @@ static int objectclass_do_add(struct oc_context *ac)
/* systemFlags &= ( SYSTEM_FLAG_CONFIG_ALLOW_RENAME | SYSTEM_FLAG_CONFIG_ALLOW_MOVE | SYSTEM_FLAG_CONFIG_LIMITED_MOVE); */
ldb_msg_remove_element(msg, el);
}
-
+
/* This flag is only allowed on attributeSchema objects */
if (ldb_attr_cmp(current->objectclass->lDAPDisplayName, "attributeSchema") == 0) {
systemFlags &= ~SYSTEM_FLAG_ATTR_IS_RDN;
@@ -632,7 +583,7 @@ static int objectclass_do_add(struct oc_context *ac)
|| ldb_attr_cmp(current->objectclass->lDAPDisplayName, "ntDSDSA") == 0) {
systemFlags |= (int32_t)(SYSTEM_FLAG_DISALLOW_MOVE_ON_DELETE);
- } else if (ldb_attr_cmp(current->objectclass->lDAPDisplayName, "siteLink") == 0
+ } else if (ldb_attr_cmp(current->objectclass->lDAPDisplayName, "siteLink") == 0
|| ldb_attr_cmp(current->objectclass->lDAPDisplayName, "siteLinkBridge") == 0
|| ldb_attr_cmp(current->objectclass->lDAPDisplayName, "nTDSConnection") == 0) {
systemFlags |= (int32_t)(SYSTEM_FLAG_CONFIG_ALLOW_RENAME);