--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/telephonyserverplugins/simtsy/src/CSimNtRas.cpp	Tue Feb 02 01:41:59 2010 +0200
@@ -0,0 +1,228 @@
+// Copyright (c) 1997-2009 Nokia Corporation and/or its subsidiary(-ies).
+// All rights reserved.
+// This component and the accompanying materials are made available
+// under the terms of "Eclipse Public License v1.0"
+// which accompanies this distribution, and is available
+// at the URL "http://www.eclipse.org/legal/epl-v10.html".
+//
+// Initial Contributors:
+// Nokia Corporation - initial contribution.
+//
+// Contributors:
+//
+// Description:
+// This file contains the implementation of the CSimNtRas class.
+// 
+//
+
+/**
+ @file
+*/
+
+#include "CSimNtras.h"
+#include "Simlog.h"
+
+_LIT8(KNtRasWriteText,"CLIENT");			// < Solicitation text, send to start the NTRas server
+_LIT8(KNtRasReceiveText,"SERVER");			// < NTRas server response, indicating the PPP session can commence.
+const TInt KNtRasServerResponseTimeout=5;	// < Connection attempt time out value in seconds.
+
+const TDataBits KDefaultDataBits=EData8;	// < Default configuration is 8N1
+const TParity KDefaultParity=EParityNone;	// < Default configuration is 8N1
+const TStopBits KDefaultStopBits=EStop1;	// < Default configuration is 8N1
+const TText8 KDefaultXon=17;				// < Default XON character is <ctrl>Q
+const TText8 KDefaultXoff=19;				// < Default XOFF character is <ctrl>S
+const TInt KTxMaxRetries=3;					// < Maximum number of transmit retries before giving up
+
+CSimNtRas* CSimNtRas::NewL(CSimPhone* aPhone)
+/**
+ * Standard two phase constructor.
+ */
+	{
+	CSimNtRas* self=new(ELeave) CSimNtRas(aPhone);
+	CleanupStack::PushL(self);
+	self->ConstructL();
+	CleanupStack::Pop();
+	return self;
+	}
+
+CSimNtRas::CSimNtRas(CSimPhone* aPhone)
+	: iPhone(aPhone), iPortOpen(EFalse)
+/**
+ * Trivial first phase constructor.
+ */
+	{
+	}
+
+void CSimNtRas::ConstructL()
+/**
+ * Second phase constructor.  Create heap-based objects, in this instance the timer
+ * and the Comm Port classes.
+ */
+	{
+	iTimer=CSimTimer::NewL(iPhone);
+	CommConstructL(CActive::EPriorityStandard,CActive::EPriorityStandard);
+	}
+
+CSimNtRas::~CSimNtRas()
+/**
+ * Standard destructor.  Close Comm Port and destroy heap-based objects.
+ */
+	{
+	if(iPortOpen)
+		{
+		CommCancel();
+		CommClose();
+		}
+	delete iTimer;
+	}
+
+TInt CSimNtRas::Connect(const TDesC& aCsyName, const TDesC& aPort,
+						const TCommConfigV01& aConfig, MNTRasCallBack* aCallback)
+/**
+ * Attempt to connect to an NT Ras "Cable Connection" service.
+ * @param aCsyName	The CSY to be used for the connection.
+ * @param aPort		The Port to be used for the connection.
+ * @param aConfig	The port configuration to be used for the connection.
+ * @param aCallback	The callback class that must be signalled when the connection completes.
+ * @return TInt		Standard error value.
+ */
+	{
+	LOGDATA1("Starting to attempt a NT RAS Connection");
+	iReadBuf.Zero();
+	iInputBuf.Zero();
+
+// Open and configuration the port
+	TInt ret=CommOpen(aCsyName,aPort,ECommShared);
+	if(ret!=KErrNone)
+		return ret;
+	iPortOpen=ETrue;
+
+	TCommConfig configPckg;
+	TCommConfigV01& config=configPckg();
+	iCommPort.Config(configPckg);
+
+	config.iDataBits=KDefaultDataBits;
+	config.iParity=KDefaultParity;
+	config.iStopBits=KDefaultStopBits;
+	config.iXonChar=KDefaultXon;
+	config.iXoffChar=KDefaultXoff;
+	config.iTerminatorCount=0;
+	config.iSpecialRate=0;
+
+	config.iRate=aConfig.iRate;
+	config.iHandshake=aConfig.iHandshake;
+	ret=iCommPort.SetConfig(configPckg);
+	if(ret!=KErrNone)
+		return ret;
+
+// Power up the port ready for receives and transmits
+	CommReadReady();
+	CommWriteReady();
+
+	iAttemptCnt=0;
+	iCallback=aCallback;
+	CommReadOneOrMore(iReadBuf);
+	AttemptConnect();
+	return KErrNone;
+	}
+
+void CSimNtRas::AttemptConnect()
+/**
+ * Transmit "CLIENT" and attempt a connection
+ */
+	{
+	LOGDATA1("NTRAS Writing CLIENT...");
+	iAttemptCnt++;
+	// Send the soliciting message, and await the NT Ras server's response.
+	CommWrite(KNtRasWriteText);
+	iTimer->Start(KNtRasServerResponseTimeout,this);
+	}
+
+void CSimNtRas::Cancel()
+/**
+ * Cancel any outstanding comm port reads, writes or timer requests.
+ */
+	{
+	iTimer->Cancel();
+	CommCancel();
+	}
+
+void CSimNtRas::Terminate()
+/**
+ * Terminate the NTRas connection.  If opened, cancel any outstanding requests and close
+ * the port.  Also, cancel any outstanding timer request.
+ */
+	{
+	if(iPortOpen)
+		{
+		CommCancel();
+		CommClose();
+		}
+	iTimer->Cancel();
+	}
+
+void CSimNtRas::CommReadComplete(TInt aStatus)
+/**
+ * Serial port read completion callback.  If there's no read error, append the read
+ * data to the input buffer and scan for the server's response.
+ * If no match is found, re-post the read.
+ * @param aStatus	Standard error value, indicating the result of the read request.
+ */
+	{
+	LOGDATA2("NTRAS Rx Completion: %S",&iInputBuf);
+	if(aStatus!=KErrNone)
+		{
+		iTimer->Cancel();
+		iCallback->NTRasCallBack(aStatus);
+		return;
+		}
+
+	if((iInputBuf.Length()+iReadBuf.Length())>KInputBufferSize)
+		{
+		iTimer->Cancel();
+		iCallback->NTRasCallBack(KErrNotFound);
+		return;
+		}
+
+	iInputBuf.Append(iReadBuf);
+	TInt pos=iInputBuf.FindF(KNtRasReceiveText);
+	if(pos>=0)
+		{
+		iTimer->Cancel();
+		iCallback->NTRasCallBack(KErrNone);
+		LOGDATA1("NTRAS Received SERVER!");
+		return;
+		}
+
+	CommReadOneOrMore(iReadBuf);
+	}
+
+void CSimNtRas::CommWriteComplete(TInt aStatus)
+/**
+ * Serial port write completion callback.  Terminate the connection attempt if an error
+ * has occurred.
+ */
+	{
+	LOGDATA1("NTRAS Write Completion");
+	if(aStatus!=KErrNone)
+		{
+		iTimer->Cancel();
+		iCallback->NTRasCallBack(aStatus);
+		}
+	}
+
+void CSimNtRas::TimerCallBack(TInt /*aId*/)
+/**
+ * Timer expired callback.  Give up the attempted connection with a time-out error.
+ */
+	{
+	LOGDATA1("NTRAS Timeout Occurred");
+	CommWriteCancel();
+	if(iAttemptCnt<KTxMaxRetries)
+		AttemptConnect();
+	else
+		{
+		CommReadCancel();
+		iCallback->NTRasCallBack(KErrTimedOut);
+		}
+	}