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tcp_fsm.h File Reference

TCP state machine definitions. More...

Go to the source code of this file.

Defines
#define	TCP_NSTATES   11
	Total number of possible states.
#define	TCPS_CLOSED   0
	closed
#define	TCPS_LISTEN   1
	listening for connection
#define	TCPS_SYN_SENT   2
	active, have sent syn
#define	TCPS_SYN_RECEIVED   3
	have sent and received syn
#define	TCPS_ESTABLISHED   4
	established
#define	TCPS_CLOSE_WAIT   5
	rcvd fin, waiting for close
#define	TCPS_FIN_WAIT_1   6
	have closed, sent fin
#define	TCPS_CLOSING   7
	closed xchd FIN; await FIN ACK
#define	TCPS_LAST_ACK   8
	had fin and close; await FIN ACK
#define	TCPS_FIN_WAIT_2   9
	have closed, fin is acked
#define	TCPS_TIME_WAIT   10
	in 2*msl quiet wait after close
Functions
void	NutTcpStateMachine (NETBUF *nb)
	Process incoming TCP segments.
int	NutTcpStatePassiveOpenEvent (TCPSOCKET *sock)
	Initiated by the application.
int	NutTcpStateActiveOpenEvent (TCPSOCKET *sock)
	Initiated by the application.
int	NutTcpStateCloseEvent (TCPSOCKET *sock)
	Socket close by application.
int	NutTcpStateWindowEvent (TCPSOCKET *sock)
	Initiated by the application.
void	NutTcpStateRetranTimeout (TCPSOCKET *sock)
	Retransmit a segment after ACK timeout.

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Detailed Description

TCP state machine definitions.

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