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