s4:dsdb: add validate_update module

metze

source4/dsdb/samdb/ldb_modules/config.mk

@@ -437,7 +437,6 @@ ldb_resolve_oids_OBJ_FILES = $(dsdbsrcdir)/samdb/ldb_modules/resolve_oids.o
 PRIVATE_DEPENDENCIES = LIBTALLOC LIBEVENTS LIBSECURITY SAMDB
 SUBSYSTEM = LIBLDB
 INIT_FUNCTION = LDB_MODULE(acl)
-
 # End MODULE ldb_acl
 ################################################
 
@@ -454,3 +453,13 @@ INIT_FUNCTION = LDB_MODULE(lazy_commit)
 ################################################
 
 ldb_lazy_commit_OBJ_FILES = $(dsdbsrcdir)/samdb/ldb_modules/lazy_commit.o
+
+# Start MODULE ldb_validate_update
+[MODULE::ldb_validate_update]
+PRIVATE_DEPENDENCIES = LIBTALLOC LIBEVENTS LIBSECURITY SAMDB
+SUBSYSTEM = LIBLDB
+INIT_FUNCTION = LDB_MODULE(validate_update)
+# End MODULE ldb_validate_update
+################################################
+
+ldb_validate_update_OBJ_FILES = $(dsdbsrcdir)/samdb/ldb_modules/validate_update.o

source4/dsdb/samdb/ldb_modules/validate_update.c

@@ -0,0 +1,120 @@
+/*
+   ldb database library
+
+   Copyright (C) Stefan Metzmacher <metze@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_module.h"
+#include "dsdb/samdb/samdb.h"
+
+static int validate_update_message(struct ldb_context *ldb,
+				   struct dsdb_schema *schema,
+				   const struct ldb_message *msg)
+{
+	int i;
+
+	for (i=0; i < msg->num_elements; i++) {
+		WERROR werr;
+
+		werr = dsdb_attribute_validate_ldb(ldb, schema,
+						   &msg->elements[i]);
+		if (!W_ERROR_IS_OK(werr)) {
+			int j;
+
+			ldb_debug(ldb, LDB_DEBUG_ERROR,
+				  "TODO: object[%s] add/modify attribute[%d|%s] num_values[%d] - %s\n",
+				  ldb_dn_get_linearized(msg->dn),
+				  i, msg->elements[i].name,
+				  msg->elements[i].num_values,
+				  win_errstr(werr));
+
+			for (j=0; j < msg->elements[i].num_values; j++) {
+				ldb_debug(ldb, LDB_DEBUG_ERROR,
+					  "TODO: value[%d] len[%d]\n", j,
+					  msg->elements[i].values[j].length);
+				dump_data(0,
+					  msg->elements[i].values[j].data,
+					  msg->elements[i].values[j].length);
+			}
+
+			return LDB_ERR_INVALID_ATTRIBUTE_SYNTAX;
+		}
+	}
+
+	return LDB_SUCCESS;
+}
+
+static int validate_update_add(struct ldb_module *module, struct ldb_request *req)
+{
+	struct ldb_context *ldb;
+	struct dsdb_schema *schema;
+	int ret;
+
+	ldb = ldb_module_get_ctx(module);
+	schema = dsdb_get_schema(ldb);
+
+	if (!schema) {
+		return ldb_next_request(module, req);
+	}
+
+	/* do not manipulate our control entries */
+	if (ldb_dn_is_special(req->op.add.message->dn)) {
+		return ldb_next_request(module, req);
+	}
+
+	ret = validate_update_message(ldb, schema,
+				      req->op.add.message);
+	if (ret != LDB_SUCCESS) {
+		return ret;
+	}
+
+	return ldb_next_request(module, req);
+}
+
+static int validate_update_modify(struct ldb_module *module, struct ldb_request *req)
+{
+	struct ldb_context *ldb;
+	struct dsdb_schema *schema;
+	int ret;
+
+	ldb = ldb_module_get_ctx(module);
+	schema = dsdb_get_schema(ldb);
+
+	if (!schema) {
+		return ldb_next_request(module, req);
+	}
+
+	/* do not manipulate our control entries */
+	if (ldb_dn_is_special(req->op.mod.message->dn)) {
+		return ldb_next_request(module, req);
+	}
+
+	ret = validate_update_message(ldb, schema,
+				      req->op.mod.message);
+	if (ret != LDB_SUCCESS) {
+		return ret;
+	}
+
+	return ldb_next_request(module, req);
+}
+
+_PUBLIC_ const struct ldb_module_ops ldb_validate_update_module_ops = {
+	.name		= "validate_update",
+	.add		= validate_update_add,
+	.modify		= validate_update_modify,
+};
+