1 /* SPDX-License-Identifier: GPL-2.0-or-later * 1 /* SPDX-License-Identifier: GPL-2.0-or-later */
2 /* 2 /*
3 * INET An implementation of the TCP/I 3 * INET An implementation of the TCP/IP protocol suite for the LINUX
4 * operating system. INET is imp 4 * operating system. INET is implemented using the BSD Socket
5 * interface as the means of comm 5 * interface as the means of communication with the user level.
6 * 6 *
7 * Definitions for the TCP protoc 7 * Definitions for the TCP protocol sk_state field.
8 */ 8 */
9 #ifndef _LINUX_TCP_STATES_H 9 #ifndef _LINUX_TCP_STATES_H
10 #define _LINUX_TCP_STATES_H 10 #define _LINUX_TCP_STATES_H
11 11
12 enum { 12 enum {
13 TCP_ESTABLISHED = 1, 13 TCP_ESTABLISHED = 1,
14 TCP_SYN_SENT, 14 TCP_SYN_SENT,
15 TCP_SYN_RECV, 15 TCP_SYN_RECV,
16 TCP_FIN_WAIT1, 16 TCP_FIN_WAIT1,
17 TCP_FIN_WAIT2, 17 TCP_FIN_WAIT2,
18 TCP_TIME_WAIT, 18 TCP_TIME_WAIT,
19 TCP_CLOSE, 19 TCP_CLOSE,
20 TCP_CLOSE_WAIT, 20 TCP_CLOSE_WAIT,
21 TCP_LAST_ACK, 21 TCP_LAST_ACK,
22 TCP_LISTEN, 22 TCP_LISTEN,
23 TCP_CLOSING, /* Now a valid state * 23 TCP_CLOSING, /* Now a valid state */
24 TCP_NEW_SYN_RECV, 24 TCP_NEW_SYN_RECV,
25 TCP_BOUND_INACTIVE, /* Pseudo-state fo <<
26 25
27 TCP_MAX_STATES /* Leave at the end! * 26 TCP_MAX_STATES /* Leave at the end! */
28 }; 27 };
29 28
30 #define TCP_STATE_MASK 0xF 29 #define TCP_STATE_MASK 0xF
31 30
32 #define TCP_ACTION_FIN (1 << TCP_CLOSE) 31 #define TCP_ACTION_FIN (1 << TCP_CLOSE)
33 32
34 enum { 33 enum {
35 TCPF_ESTABLISHED = (1 << TCP_ESTABLISH 34 TCPF_ESTABLISHED = (1 << TCP_ESTABLISHED),
36 TCPF_SYN_SENT = (1 << TCP_SYN_SENT) 35 TCPF_SYN_SENT = (1 << TCP_SYN_SENT),
37 TCPF_SYN_RECV = (1 << TCP_SYN_RECV) 36 TCPF_SYN_RECV = (1 << TCP_SYN_RECV),
38 TCPF_FIN_WAIT1 = (1 << TCP_FIN_WAIT1 37 TCPF_FIN_WAIT1 = (1 << TCP_FIN_WAIT1),
39 TCPF_FIN_WAIT2 = (1 << TCP_FIN_WAIT2 38 TCPF_FIN_WAIT2 = (1 << TCP_FIN_WAIT2),
40 TCPF_TIME_WAIT = (1 << TCP_TIME_WAIT 39 TCPF_TIME_WAIT = (1 << TCP_TIME_WAIT),
41 TCPF_CLOSE = (1 << TCP_CLOSE), 40 TCPF_CLOSE = (1 << TCP_CLOSE),
42 TCPF_CLOSE_WAIT = (1 << TCP_CLOSE_WAI 41 TCPF_CLOSE_WAIT = (1 << TCP_CLOSE_WAIT),
43 TCPF_LAST_ACK = (1 << TCP_LAST_ACK) 42 TCPF_LAST_ACK = (1 << TCP_LAST_ACK),
44 TCPF_LISTEN = (1 << TCP_LISTEN), 43 TCPF_LISTEN = (1 << TCP_LISTEN),
45 TCPF_CLOSING = (1 << TCP_CLOSING), 44 TCPF_CLOSING = (1 << TCP_CLOSING),
46 TCPF_NEW_SYN_RECV = (1 << TCP_NEW_SYN_ 45 TCPF_NEW_SYN_RECV = (1 << TCP_NEW_SYN_RECV),
47 TCPF_BOUND_INACTIVE = (1 << TCP_BOUND_ <<
48 }; 46 };
49 47
50 #endif /* _LINUX_TCP_STATES_H */ 48 #endif /* _LINUX_TCP_STATES_H */
51 49
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