+int mbr_set_identifier_ttl(int id_type, const void *identifier, size_t identifier_size, unsigned int seconds);
+
+/* new SPI to allow translation from any-to-any type, pass ID_TYPE_UID_OR_GID when translating to a UID */
+int mbr_identifier_translate(int id_type, const void *identifier, size_t identifier_size, int target_type, void **result, int *rec_type);
+
+/*
+ * groupid_type does not support ID_TYPE_GSS_EXPORT_NAME
+ */
+int mbr_check_membership_ext(int userid_type, const void *userid, size_t userid_size, int groupid_type, const void *groupid, int refresh, int *isMember);