1 files changed, 120 insertions, 0 deletions
diff --git a/source4/dsdb/samdb/ldb_modules/schema.c b/source4/dsdb/samdb/ldb_modules/schema.c
new file mode 100644
index 0000000000..77bf9dc21e
--- /dev/null
+++ b/source4/dsdb/samdb/ldb_modules/schema.c
@@ -0,0 +1,120 @@
+/* 
+   Unix SMB/CIFS implementation.
+   Samba utility functions
+
+   Copyright (C) Andrew Tridgell 2009
+   Copyright (C) Andrew Bartlett <abartlet@samba.org> 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/>.
+*/
+
+#include "includes.h"
+#include "ldb.h"
+#include "ldb_module.h"
+#include "librpc/ndr/libndr.h"
+#include "dsdb/samdb/ldb_modules/util.h"
+#include "dsdb/samdb/samdb.h"
+#include "util.h"
+#include "libcli/security/security.h"
+#include "lib/ldb/include/ldb_private.h"
+
+const struct dsdb_class * get_last_structural_class(const struct dsdb_schema *schema,const struct ldb_message_element *element)
+{
+	const struct dsdb_class *last_class = NULL;
+	unsigned int i;
+
+	for (i = 0; i < element->num_values; i++){
+		const struct dsdb_class *tmp_class = dsdb_class_by_lDAPDisplayName_ldb_val(schema, &element->values[i]);
+
+		if(tmp_class == NULL) {
+			continue;
+		}
+
+		if(tmp_class->objectClassCategory > 1) {
+			continue;
+		}
+
+		if (!last_class) {
+			last_class = tmp_class;
+		} else {
+			if (tmp_class->subClass_order > last_class->subClass_order)
+				last_class = tmp_class;
+		}
+	}
+
+	return last_class;
+}
+
+int acl_check_access_on_class(struct ldb_module *module,
+			      const struct dsdb_schema *schema,
+			      TALLOC_CTX *mem_ctx,
+			      struct security_descriptor *sd,
+			      struct dom_sid *rp_sid,
+			      uint32_t access,
+			      const char *class_name)
+{
+	int ret;
+	NTSTATUS status;
+	uint32_t access_granted;
+	struct object_tree *root = NULL;
+	struct object_tree *new_node = NULL;
+	const struct GUID *guid;
+	TALLOC_CTX *tmp_ctx = talloc_new(mem_ctx);
+	struct security_token *token = acl_user_token(module);
+	if (class_name) {
+		guid = class_schemaid_guid_by_lDAPDisplayName(schema, class_name);
+		if (!guid) {
+			DEBUG(10, ("acl_search: cannot find class %s\n",
+				   class_name));
+			goto fail;
+		}
+		if (!insert_in_object_tree(tmp_ctx,
+					   guid, access,
+					   &root, &new_node)) {
+			DEBUG(10, ("acl_search: cannot add to object tree guid\n"));
+			goto fail;
+		}
+	}
+	status = sec_access_check_ds(sd, token,
+				     access,
+				     &access_granted,
+				     root,
+				     rp_sid);
+	if (!NT_STATUS_IS_OK(status)) {
+		ret = LDB_ERR_INSUFFICIENT_ACCESS_RIGHTS;
+	}
+	else {
+		ret = LDB_SUCCESS;
+	}
+	return ret;
+fail:
+	return ldb_operr(ldb_module_get_ctx(module));
+}
+
+const struct GUID *get_oc_guid_from_message(struct ldb_module *module,
+						   const struct dsdb_schema *schema,
+						   struct ldb_message *msg)
+{
+	struct ldb_message_element *oc_el;
+
+	oc_el = ldb_msg_find_element(msg, "objectClass");
+	if (!oc_el) {
+		return NULL;
+	}
+
+	return class_schemaid_guid_by_lDAPDisplayName(schema,
+						      (char *)oc_el->values[oc_el->num_values-1].data);
+}
+
+