tcpsm.c

Included Files

#include <nut/include/cfg/os.h>

#include <nut/include/cfg/tcp.h>

#include <nut/include/sys/thread.h>

#include <nut/include/sys/heap.h>

#include <nut/include/sys/event.h>

#include <nut/include/sys/timer.h>

#include <nut/include/net/errno.h>

#include <nut/include/netinet/in.h>

#include <nut/include/netinet/ip.h>

#include <nut/include/net/route.h>

#include <nut/include/sys/socket.h>

#include <nut/include/netinet/tcputil.h>

#include <nut/include/netinet/tcp.h>

Preprocessor definitions

#define NUT_THREAD_TCPSMSTACK 512

Global Variable tcp_in_rdy

HANDLE tcp_in_rdy

Visible in:		nut/net/tcpsm.c
Used in:	NutTcpSm()	nut/net/tcpsm.c
	NutTcpStateMachine()	nut/net/tcpsm.c

Global Variable tcp_in_nbq

NETBUF* volatile tcp_in_nbq

Visible in:		nut/net/tcpsm.c
Used in:	NutTcpSm()	nut/net/tcpsm.c
	NutTcpStateMachine()	nut/net/tcpsm.c

External Variables

tcpSocketList
extern TCPSOCKET* tcpSocketList

Local Variables

tcp_in_cnt
static u_short tcp_in_cnt

Used in:	NutTcpSm()
	NutTcpStateMachine()

tcpThread
static HANDLE tcpThread

Used in:	NutTcpInitStateMachine()
	NutTcpStateMachine()

Global Function NutTcpAbortSocket()

int NutTcpAbortSocket ( TCPSOCKET* sock, u_short last_error )

Prototyped in:	nut/include/sys/socket.h
Calls:	NutEventBroadcast()	nut/os/event.c
	NutTcpDiscardBuffers()
Called by:	NutIcmpUnreach()	nut/net/icmpin.c
	NutTcpStateCloseWait()	nut/net/tcpsm.c
	NutTcpStateEstablished()	nut/net/tcpsm.c
	NutTcpStateRetranTimeout()	nut/net/tcpsm.c
	NutTcpStateSynReceived()	nut/net/tcpsm.c
	NutTcpStateSynSent()	nut/net/tcpsm.c

Global Function NutTcpInitStateMachine()

int NutTcpInitStateMachine ( void )

Prototyped in:	nut/include/netinet/tcp_fsm.h
Calls:	NutThreadCreate()
References Functions:	NutTcpSm()	nut/net/tcpsm.c
References Variables:	tcpThread	nut/net/tcpsm.c

Global Function NutTcpSm()

void NutTcpSm ( void* arg )

Prototyped in:	nut/net/tcpsm.c
Calls:	NutEventWait()	nut/os/event.c
	NutGetMillis()	nut/os/timer.c
	NutTcpInputOptions()	nut/net/tcpsm.c
	NutTcpOutput()	nut/net/tcpout.c
	NutTcpReject()	nut/net/tcpout.c
	NutTcpStateProcess()	nut/net/tcpsm.c
	NutTcpStateRetranTimeout()	nut/net/tcpsm.c
	NutThreadSetPriority()	nut/os/thread.c
	NutTcpDestroySocket(), NutTcpFindSocket()
Used in:	NutTcpInitStateMachine()	nut/net/tcpsm.c
References Variables:	tcp_in_cnt	nut/net/tcpsm.c
	tcp_in_nbq	nut/net/tcpsm.c
	tcp_in_rdy	nut/net/tcpsm.c
	tcpSocketList

Global Function NutTcpStateActiveOpenEvent()

int NutTcpStateActiveOpenEvent ( TCPSOCKET* sock )

Prototyped in:	nut/include/netinet/tcp_fsm.h
Calls:	NutEventWait()	nut/os/event.c
	NutTcpStateChange()	nut/net/tcpsm.c

Global Function NutTcpStateCloseEvent()

int NutTcpStateCloseEvent ( TCPSOCKET* sock )

Prototyped in:	nut/include/netinet/tcp_fsm.h
Calls:	NutTcpStateChange()	nut/net/tcpsm.c
	NutThreadYield()	nut/os/thread.c
	NutTcpDestroySocket()

Global Function NutTcpStateMachine()

void NutTcpStateMachine ( NETBUF* nb )

Prototyped in:	nut/include/netinet/tcp_fsm.h
Calls:	NutEventPost()	nut/os/event.c
	NutHeapAvailable()	nut/os/heap.c
	NutNetBufFree()	nut/dev/netbuf.c
	NutTcpReject()	nut/net/tcpout.c
Called by:	NutTcpInput()	nut/net/tcpin.c
References Variables:	tcpThread	nut/net/tcpsm.c
	tcp_in_cnt	nut/net/tcpsm.c
	tcp_in_nbq	nut/net/tcpsm.c
	tcp_in_rdy	nut/net/tcpsm.c

Global Function NutTcpStatePassiveOpenEvent()

int NutTcpStatePassiveOpenEvent ( TCPSOCKET* sock )

Prototyped in:	nut/include/netinet/tcp_fsm.h
Calls:	NutEventWait()	nut/os/event.c
	NutTcpStateChange()	nut/net/tcpsm.c

Global Function NutTcpStateRetranTimeout()

int NutTcpStateRetranTimeout ( TCPSOCKET* sock )

Prototyped in:	nut/include/netinet/tcp_fsm.h
Calls:	NutGetMillis()	nut/os/timer.c
	NutIpOutput()	nut/net/ipout.c
	NutTcpAbortSocket()	nut/net/tcpsm.c
Called by:	NutTcpProcessAck()	nut/net/tcpsm.c
	NutTcpSm()	nut/net/tcpsm.c

Global Function NutTcpStateWindowEvent()

int NutTcpStateWindowEvent ( TCPSOCKET* sock )

Prototyped in:	nut/include/netinet/tcp_fsm.h
Calls:	NutTcpOutput()	nut/net/tcpout.c

Local Function NutTcpInputOptions()

static void NutTcpInputOptions ( TCPSOCKET* sock, NETBUF* nb )

Calls:	__byte_swap2()
Called by:	NutTcpSm()	nut/net/tcpsm.c

Local Function NutTcpProcessAck()

static int NutTcpProcessAck ( TCPSOCKET* sock, TCPHDR* th, u_short length )

Calls:	NutGetMillis()	nut/os/timer.c
	NutNetBufFree()	nut/dev/netbuf.c
	NutTcpStateRetranTimeout()	nut/net/tcpsm.c
	NutTcpCalcRtt(), __byte_swap2(), __byte_swap4()
Called by:	NutTcpStateCloseWait()	nut/net/tcpsm.c
	NutTcpStateClosing()	nut/net/tcpsm.c
	NutTcpStateEstablished()	nut/net/tcpsm.c
	NutTcpStateFinWait1()	nut/net/tcpsm.c
	NutTcpStateFinWait2()	nut/net/tcpsm.c
	NutTcpStateLastAck()	nut/net/tcpsm.c
	NutTcpStateSynReceived()	nut/net/tcpsm.c
	NutTcpStateSynSent()	nut/net/tcpsm.c

Local Function NutTcpProcessAppData()

static void NutTcpProcessAppData ( TCPSOCKET* sock, NETBUF* nb )

Calls:	NutTcpOutput()	nut/net/tcpout.c
Called by:	NutTcpStateEstablished()	nut/net/tcpsm.c
	NutTcpStateFinWait1()	nut/net/tcpsm.c
	NutTcpStateFinWait2()	nut/net/tcpsm.c
	NutTcpStateSynReceived()	nut/net/tcpsm.c

Local Function NutTcpProcessSyn()

static void NutTcpProcessSyn ( TCPSOCKET* sock, IPHDR* ih, TCPHDR* th )

Calls:	NutIpRouteQuery()	nut/net/route.c
	__byte_swap2(), __byte_swap4()
Called by:	NutTcpStateListen()	nut/net/tcpsm.c
	NutTcpStateSynSent()	nut/net/tcpsm.c

Local Function NutTcpStateChange()

static int NutTcpStateChange ( TCPSOCKET* sock, u_char state )

Calls:	NutEventBroadcast()	nut/os/event.c
	NutEventPostAsync()	nut/os/event.c
	NutTcpOutput()	nut/net/tcpout.c
Called by:	NutTcpStateActiveOpenEvent()	nut/net/tcpsm.c
	NutTcpStateCloseEvent()	nut/net/tcpsm.c
	NutTcpStateClosing()	nut/net/tcpsm.c
	NutTcpStateEstablished()	nut/net/tcpsm.c
	NutTcpStateFinWait1()	nut/net/tcpsm.c
	NutTcpStateFinWait2()	nut/net/tcpsm.c
	NutTcpStateListen()	nut/net/tcpsm.c
	NutTcpStatePassiveOpenEvent()	nut/net/tcpsm.c
	NutTcpStateSynReceived()	nut/net/tcpsm.c
	NutTcpStateSynSent()	nut/net/tcpsm.c

Local Function NutTcpStateCloseWait()

static void NutTcpStateCloseWait ( TCPSOCKET* sock, u_char flags, TCPHDR* th, NETBUF* nb )

Calls:	NutNetBufFree()	nut/dev/netbuf.c
	NutTcpAbortSocket()	nut/net/tcpsm.c
	NutTcpProcessAck()	nut/net/tcpsm.c
	NutTcpReject()	nut/net/tcpout.c
Called by:	NutTcpStateProcess()	nut/net/tcpsm.c

Local Function NutTcpStateClosing()

static void NutTcpStateClosing ( TCPSOCKET* sock, u_char flags, TCPHDR* th, NETBUF* nb )

Calls:	NutNetBufFree()	nut/dev/netbuf.c
	NutTcpProcessAck()	nut/net/tcpsm.c
	NutTcpReject()	nut/net/tcpout.c
	NutTcpStateChange()	nut/net/tcpsm.c
	NutTcpDestroySocket()
Called by:	NutTcpStateProcess()	nut/net/tcpsm.c

Local Function NutTcpStateEstablished()

static void NutTcpStateEstablished ( TCPSOCKET* sock, u_char flags, TCPHDR* th, NETBUF* nb )

Calls:	NutEventPost()	nut/os/event.c
	NutNetBufFree()	nut/dev/netbuf.c
	NutTcpAbortSocket()	nut/net/tcpsm.c
	NutTcpOutput()	nut/net/tcpout.c
	NutTcpProcessAck()	nut/net/tcpsm.c
	NutTcpProcessAppData()	nut/net/tcpsm.c
	NutTcpReject()	nut/net/tcpout.c
	NutTcpStateChange()	nut/net/tcpsm.c
	__byte_swap4()
Called by:	NutTcpStateProcess()	nut/net/tcpsm.c

Local Function NutTcpStateFinWait1()

static void NutTcpStateFinWait1 ( TCPSOCKET* sock, u_char flags, TCPHDR* th, NETBUF* nb )

Calls:	NutEventPost()	nut/os/event.c
	NutNetBufFree()	nut/dev/netbuf.c
	NutTcpProcessAck()	nut/net/tcpsm.c
	NutTcpProcessAppData()	nut/net/tcpsm.c
	NutTcpReject()	nut/net/tcpout.c
	NutTcpStateChange()	nut/net/tcpsm.c
	NutTcpDestroySocket()
Called by:	NutTcpStateProcess()	nut/net/tcpsm.c

Local Function NutTcpStateFinWait2()

static void NutTcpStateFinWait2 ( TCPSOCKET* sock, u_char flags, TCPHDR* th, NETBUF* nb )

Calls:	NutEventPost()	nut/os/event.c
	NutNetBufFree()	nut/dev/netbuf.c
	NutTcpProcessAck()	nut/net/tcpsm.c
	NutTcpProcessAppData()	nut/net/tcpsm.c
	NutTcpReject()	nut/net/tcpout.c
	NutTcpStateChange()	nut/net/tcpsm.c
	NutTcpDestroySocket()
Called by:	NutTcpStateProcess()	nut/net/tcpsm.c

Local Function NutTcpStateLastAck()

static void NutTcpStateLastAck ( TCPSOCKET* sock, u_char flags, TCPHDR* th, NETBUF* nb )

Calls:	NutNetBufFree()	nut/dev/netbuf.c
	NutTcpProcessAck()	nut/net/tcpsm.c
	NutTcpReject()	nut/net/tcpout.c
	NutTcpDestroySocket()
Called by:	NutTcpStateProcess()	nut/net/tcpsm.c

Local Function NutTcpStateListen()

static void NutTcpStateListen ( TCPSOCKET* sock, u_char flags, TCPHDR* th, NETBUF* nb )

Calls:	NutNetBufFree()	nut/dev/netbuf.c
	NutTcpProcessSyn()	nut/net/tcpsm.c
	NutTcpReject()	nut/net/tcpout.c
	NutTcpStateChange()	nut/net/tcpsm.c
Called by:	NutTcpStateProcess()	nut/net/tcpsm.c

Local Function NutTcpStateProcess()

static void NutTcpStateProcess ( TCPSOCKET* sock, NETBUF* nb )

Calls:	NutEventBroadcast()	nut/os/event.c
	NutNetBufFree()	nut/dev/netbuf.c
	NutTcpReject()	nut/net/tcpout.c
	NutTcpStateCloseWait()	nut/net/tcpsm.c
	NutTcpStateClosing()	nut/net/tcpsm.c
	NutTcpStateEstablished()	nut/net/tcpsm.c
	NutTcpStateFinWait1()	nut/net/tcpsm.c
	NutTcpStateFinWait2()	nut/net/tcpsm.c
	NutTcpStateLastAck()	nut/net/tcpsm.c
	NutTcpStateListen()	nut/net/tcpsm.c
	NutTcpStateSynReceived()	nut/net/tcpsm.c
	NutTcpStateSynSent()	nut/net/tcpsm.c
Called by:	NutTcpSm()	nut/net/tcpsm.c

Local Function NutTcpStateSynReceived()

static void NutTcpStateSynReceived ( TCPSOCKET* sock, u_char flags, TCPHDR* th, NETBUF* nb )

Calls:	NutEventPost()	nut/os/event.c
	NutNetBufFree()	nut/dev/netbuf.c
	NutTcpAbortSocket()	nut/net/tcpsm.c
	NutTcpProcessAck()	nut/net/tcpsm.c
	NutTcpProcessAppData()	nut/net/tcpsm.c
	NutTcpReject()	nut/net/tcpout.c
	NutTcpStateChange()	nut/net/tcpsm.c
	IsInLimits(), NutTcpDiscardBuffers(), __byte_swap4()
Called by:	NutTcpStateProcess()	nut/net/tcpsm.c

Local Function NutTcpStateSynSent()

static void NutTcpStateSynSent ( TCPSOCKET* sock, u_char flags, TCPHDR* th, NETBUF* nb )

Calls:	NutEventPost()	nut/os/event.c
	NutNetBufFree()	nut/dev/netbuf.c
	NutTcpAbortSocket()	nut/net/tcpsm.c
	NutTcpProcessAck()	nut/net/tcpsm.c
	NutTcpProcessSyn()	nut/net/tcpsm.c
	NutTcpReject()	nut/net/tcpout.c
	NutTcpStateChange()	nut/net/tcpsm.c
	IsInLimits(), __byte_swap4()
Called by:	NutTcpStateProcess()	nut/net/tcpsm.c