include/net/tcp_states.h

Source file repositories/reference/linux-study-clean/include/net/tcp_states.h

File Facts

System
Linux kernel
Corpus path
include/net/tcp_states.h
Extension
.h
Size
1329 bytes
Lines
51
Domain
Networking Core
Bucket
Sockets, Protocols, Packet Path, And Network Policy
Inferred role
Networking Core: implementation source
Status
source implementation candidate

Why This File Exists

Networking stack implementation surface: socket APIs, protocol dispatch, packet flow, routing, filtering, and network namespaces.

Dependency Surface

Detected Declarations

Annotated Snippet

#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_BOUND_INACTIVE, /* Pseudo-state for inet_diag */

	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),
	TCPF_BOUND_INACTIVE = (1 << TCP_BOUND_INACTIVE),
};

#endif	/* _LINUX_TCP_STATES_H */

Annotation

Implementation Notes