+STUB(mbuf_get_flowid);
+STUB(mbuf_set_flowid);
+STUB(mbuf_get_timestamp);
+STUB(mbuf_set_timestamp);
+STUB(mbuf_get_tx_compl_data);
+STUB(mbuf_set_tx_compl_data);
+STUB(mbuf_get_status);
+STUB(mbuf_set_status);
+STUB(mbuf_get_timestamp_requested);
+STUB(mbuf_set_timestamp_requested);
+STUB(mbuf_register_tx_compl_callback);
+STUB(mbuf_unregister_tx_compl_callback);