// Copyright (c) 2003-2009 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:

// tunnelnif.h 

// 

//

/**

 @file 

 @internalComponent

*/

#if (!defined TUNNELBINDERS_H__)

#define TUNNELBINDERS_H__

#include <comms-infras/nifif.h>

#include <in6_if.h>

#include <eui_addr.h>	// TE64Addr

#include <comms-infras/ss_flowbinders.h>

#include <comms-infras/ss_nodemessages.h>

#include "tunnelFlow.h"				// for CTunnelNcp::Info()

using namespace ESock;

const TInt KTunnelMtu = 1500;

class CTunnelFlow;

NONSHARABLE_CLASS(CTunnelNcp) : public CBase, public ESock::MLowerDataSender, public ESock::MLowerControl

	{

public:

	// from MLowerControl

	virtual TInt GetName(TDes& aName);

	virtual TInt BlockFlow(ESock::MLowerControl::TBlockOption /*aOption*/);

	// from MLowerDataSender

	virtual ESock::MLowerDataSender::TSendResult Send(RMBufChain& aPdu);

	// Utility functions called from CTunnelFlow

	ESock::MLowerDataSender* Bind(ESock::MUpperDataReceiver* aUpperReceiver, ESock::MUpperControl* aUpperControl);

	void Unbind(ESock::MUpperDataReceiver* aUpperReceiver, ESock::MUpperControl* aUpperControl);

	TBool MatchesUpperControl(const ESock::MUpperControl* aUpperControl);

	void StartSending();

protected:

	CTunnelNcp(CTunnelFlow& aFlow);

	inline const TTunnelInfo* Info();

protected:

	CTunnelFlow* iFlow;

    TInetAddr iNameSer1;

	TInetAddr iNameSer2;

	ESock::MUpperControl* iUpperControl;

	ESock::MUpperDataReceiver* iUpperReceiver;

	};

// ======================================================================================

NONSHARABLE_CLASS(CTunnelNcp4) : public CTunnelNcp

	{

public:

	static CTunnelNcp4* ConstructL(CTunnelFlow& aLink);

	// from MLowerDataSender

	virtual TInt GetConfig(TBinderConfig& aConfig);

	virtual TInt Control(TUint, TUint, TDes8&);

	//

	virtual TInt Notification(TTunnelAgentMessage::TTunnelSetAddress& aMessage);

private:

	CTunnelNcp4(CTunnelFlow& aLink);

	TUint32 iLocalAddress;

	};

// ======================================================================================

NONSHARABLE_CLASS(CTunnelNcp6) : public CTunnelNcp

	{

public:

	static CTunnelNcp6* ConstructL(CTunnelFlow& aLink);

	// from MLowerDataSender

	virtual TInt GetConfig(TBinderConfig& aConfig);

	virtual TInt Control(TUint, TUint, TDes8&);

	//

	virtual TInt Notification(TTunnelAgentMessage::TTunnelSetAddress& aMessage);

private:

	CTunnelNcp6(CTunnelFlow& aLink);

	TInetAddr iLocalAddress;

	};

// ======================================================================================

class CTunnelNcpLog : public CBase

	{

public:

	static void Write(const TDesC& aDes);

	static void Printf(TRefByValue<const TDesC> aFmt, ...);

	};

//

// Inline functions

//

inline const TTunnelInfo* CTunnelNcp::Info()

	{

	return iFlow->Info();

	}

#endif