+TR_FILTER *tr_filter_new(TALLOC_CTX *mem_ctx);
+void tr_filter_free(TR_FILTER *filt);
+void tr_filter_set_type(TR_FILTER *filt, TR_FILTER_TYPE type);
+TR_FILTER_TYPE tr_filter_get_type(TR_FILTER *filt);
+
+TR_FLINE *tr_fline_new(TALLOC_CTX *mem_ctx);
+void tr_fline_free(TR_FLINE *fline);
+TR_FSPEC *tr_fspec_new(TALLOC_CTX *mem_ctx);
+void tr_fspec_free(TR_FSPEC *fspec);
+
+