TCPF_CLOSING
TCPF_CLOSE_WAIT | TCPF_LAST_ACK | TCPF_CLOSING)
(TCPF_FIN_WAIT1 | TCPF_CLOSING | TCPF_LAST_ACK);
TCPF_CLOSING | TCPF_CLOSE_WAIT |
(1 << old_state) & (TCPF_CLOSING | TCPF_LAST_ACK)) {
TCPF_CLOSING));
(TCPF_ESTABLISHED | TCPF_FIN_WAIT1 | TCPF_CLOSING |
(TCPF_FIN_WAIT1 | TCPF_FIN_WAIT2 | TCPF_CLOSING | TCPF_CLOSE))
(TCPF_FIN_WAIT1 | TCPF_FIN_WAIT2 | TCPF_CLOSING |
(TCPF_FIN_WAIT1 | TCPF_CLOSING | TCPF_LAST_ACK)) &&