TCP_ACTION_FIN 1709 net/ipv4/tcp.c /* TCP_ESTABLISHED */ TCP_FIN_WAIT1 | TCP_ACTION_FIN, TCP_ACTION_FIN 1711 net/ipv4/tcp.c /* TCP_SYN_RECV */ TCP_FIN_WAIT1 | TCP_ACTION_FIN, TCP_ACTION_FIN 1716 net/ipv4/tcp.c /* TCP_CLOSE_WAIT */ TCP_LAST_ACK | TCP_ACTION_FIN, TCP_ACTION_FIN 1729 net/ipv4/tcp.c return next & TCP_ACTION_FIN;