NFCTH_TUPLE
if (!tb[NFCTH_TUPLE] || !tb[NFCTH_POLICY] || !tb[NFCTH_PRIV_DATA_LEN])
if (!tb[NFCTH_NAME] || !tb[NFCTH_TUPLE])
ret = nfnl_cthelper_parse_tuple(&tuple, tb[NFCTH_TUPLE]);
nest_parms = nla_nest_start(skb, NFCTH_TUPLE);
if (tb[NFCTH_TUPLE]) {
ret = nfnl_cthelper_parse_tuple(&tuple, tb[NFCTH_TUPLE]);
if (tb[NFCTH_TUPLE]) {
ret = nfnl_cthelper_parse_tuple(&tuple, tb[NFCTH_TUPLE]);