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