+_PRIVATE_ int ldb_register_extended_match_rules(struct ldb_context *ldb)
+{
+ struct ldb_extended_match_rule *bitmask_and;
+ struct ldb_extended_match_rule *bitmask_or;
+ struct ldb_extended_match_rule *always_false;
+ int ret;
+
+ /* Register bitmask-and match */
+ bitmask_and = talloc_zero(ldb, struct ldb_extended_match_rule);
+ if (bitmask_and == NULL) {
+ return LDB_ERR_OPERATIONS_ERROR;
+ }
+
+ bitmask_and->oid = LDB_OID_COMPARATOR_AND;
+ bitmask_and->callback = ldb_match_bitmask;
+
+ ret = ldb_register_extended_match_rule(ldb, bitmask_and);
+ if (ret != LDB_SUCCESS) {
+ return ret;
+ }
+
+ /* Register bitmask-or match */
+ bitmask_or = talloc_zero(ldb, struct ldb_extended_match_rule);
+ if (bitmask_or == NULL) {
+ return LDB_ERR_OPERATIONS_ERROR;
+ }
+
+ bitmask_or->oid = LDB_OID_COMPARATOR_OR;
+ bitmask_or->callback = ldb_match_bitmask;
+
+ ret = ldb_register_extended_match_rule(ldb, bitmask_or);
+ if (ret != LDB_SUCCESS) {
+ return ret;
+ }
+
+ /* Register always-false match */
+ always_false = talloc_zero(ldb, struct ldb_extended_match_rule);
+ if (always_false == NULL) {
+ return LDB_ERR_OPERATIONS_ERROR;
+ }
+
+ always_false->oid = SAMBA_LDAP_MATCH_ALWAYS_FALSE;
+ always_false->callback = ldb_comparator_false;
+
+ ret = ldb_register_extended_match_rule(ldb, always_false);
+ if (ret != LDB_SUCCESS) {
+ return ret;
+ }
+
+ return LDB_SUCCESS;
+}
+
+/*
+ register a new ldb backend
+
+ if override is true, then override any existing backend for this prefix
+*/
+int ldb_register_extended_match_rule(struct ldb_context *ldb,
+ const struct ldb_extended_match_rule *rule)
+{
+ const struct ldb_extended_match_rule *lookup_rule;
+ struct ldb_extended_match_entry *entry;
+
+ lookup_rule = ldb_find_extended_match_rule(ldb, rule->oid);
+ if (lookup_rule) {
+ return LDB_ERR_ENTRY_ALREADY_EXISTS;
+ }
+
+ entry = talloc_zero(ldb, struct ldb_extended_match_entry);
+ if (!entry) {
+ return LDB_ERR_OPERATIONS_ERROR;
+ }
+ entry->rule = rule;
+ DLIST_ADD_END(ldb->extended_match_rules, entry, struct ldb_extended_match_entry);
+
+ return LDB_SUCCESS;
+}