1/*
2 * INET An implementation of the TCP/IP protocol suite for the LINUX
3 * operating system. INET is implemented using the BSD Socket
4 * interface as the means of communication with the user level.
5 *
6 * Definitions for the TCP protocol sk_state field.
7 *
8 * This program is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU General Public License
10 * as published by the Free Software Foundation; either version
11 * 2 of the License, or (at your option) any later version.
12 */
13#ifndef _LINUX_TCP_STATES_H
14#define _LINUX_TCP_STATES_H
15
16enum {
17 TCP_ESTABLISHED = 1,
18 TCP_SYN_SENT,
19 TCP_SYN_RECV,
20 TCP_FIN_WAIT1,
21 TCP_FIN_WAIT2,
22 TCP_TIME_WAIT,
23 TCP_CLOSE,
24 TCP_CLOSE_WAIT,
25 TCP_LAST_ACK,
26 TCP_LISTEN,
27 TCP_CLOSING, /* Now a valid state */
28 TCP_NEW_SYN_RECV,
29
30 TCP_MAX_STATES /* Leave at the end! */
31};
32
33#define TCP_STATE_MASK 0xF
34
35#define TCP_ACTION_FIN (1 << TCP_CLOSE)
36
37enum {
38 TCPF_ESTABLISHED = (1 << TCP_ESTABLISHED),
39 TCPF_SYN_SENT = (1 << TCP_SYN_SENT),
40 TCPF_SYN_RECV = (1 << TCP_SYN_RECV),
41 TCPF_FIN_WAIT1 = (1 << TCP_FIN_WAIT1),
42 TCPF_FIN_WAIT2 = (1 << TCP_FIN_WAIT2),
43 TCPF_TIME_WAIT = (1 << TCP_TIME_WAIT),
44 TCPF_CLOSE = (1 << TCP_CLOSE),
45 TCPF_CLOSE_WAIT = (1 << TCP_CLOSE_WAIT),
46 TCPF_LAST_ACK = (1 << TCP_LAST_ACK),
47 TCPF_LISTEN = (1 << TCP_LISTEN),
48 TCPF_CLOSING = (1 << TCP_CLOSING),
49 TCPF_NEW_SYN_RECV = (1 << TCP_NEW_SYN_RECV),
50};
51
52#endif /* _LINUX_TCP_STATES_H */
53