/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
* INET An implementation of the TCP/IP protocol suite for the LINUX
* operating system. INET is implemented using the BSD Socket
* interface as the means of communication with the user level.
*
* Definitions for the TCP protocol sk_state field.
*/
#ifndef _LINUX_TCP_STATES_H
#define _LINUX_TCP_STATES_H
enum {
TCP_ESTABLISHED = 1,
TCP_SYN_SENT,
TCP_SYN_RECV,
TCP_FIN_WAIT1,
TCP_FIN_WAIT2,
TCP_TIME_WAIT,
TCP_CLOSE,
TCP_CLOSE_WAIT,
TCP_LAST_ACK,
TCP_LISTEN,
TCP_CLOSING, /* Now a valid state */
TCP_NEW_SYN_RECV,
TCP_MAX_STATES /* Leave at the end! */
};
#define TCP_STATE_MASK 0xF
#define TCP_ACTION_FIN (1 << TCP_CLOSE)
enum {
TCPF_ESTABLISHED = (1 << TCP_ESTABLISHED),
TCPF_SYN_SENT = (1 << TCP_SYN_SENT),
TCPF_SYN_RECV = (1 << TCP_SYN_RECV),
TCPF_FIN_WAIT1 = (1 << TCP_FIN_WAIT1),
TCPF_FIN_WAIT2 = (1 << TCP_FIN_WAIT2),
TCPF_TIME_WAIT = (1 << TCP_TIME_WAIT),
TCPF_CLOSE = (1 << TCP_CLOSE),
TCPF_CLOSE_WAIT = (1 << TCP_CLOSE_WAIT),
TCPF_LAST_ACK = (1 << TCP_LAST_ACK),
TCPF_LISTEN = (1 << TCP_LISTEN),
TCPF_CLOSING = (1 << TCP_CLOSING),
TCPF_NEW_SYN_RECV = (1 << TCP_NEW_SYN_RECV),
};
#endif /* _LINUX_TCP_STATES_H */
