// Copyright (c) 2001-2009 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:

// header file for the CLanIp6Bearer implementation

// class, a derived from CLanxBearer.

// History

// 15/11/01 Started by Julian Skidmore.

// 

//

/**

 @file

 @internalComponent 

*/

#if !defined( CLanIp6Bearer_H )

#define CLanIp6Bearer_H

#include "CLanxBearer.h"

#include <eui_addr.h>

#include "EthProvision.h"

/**

@internalComponent

*/

const TUint8 KMulticastPrefix[2] = {0x33, 0x33};

/**

All of this is stored in network byte order.

@internalComponent

*/

struct TIpv6Header

{

	TUint8 GetVersion() { return (TUint8)((iVersionClassHi>>4)&0xff);}

	TUint8 GetClass() { return (TUint8)( ((iVersionClassHi<<4)| (iClassLoFlowHi>>4)) &0xff); }

	TUint8 iVersionClassHi; // The Upper nybble provides version.

	TUint8 iClassLoFlowHi;

	TUint16 iFlowLo; // Two bytes, but it doesn't start on a word boundary.

	TUint16 iPayloadLength;

	TUint8 iNextHeader;

	TUint8 iHopLimit;

	union

		{

		TUint8 iSourceAddrB[16];

		TUint16 iSourceAddrW[8];

		TUint32 iSourceAddrL[4];

		};

	union

		{

		TUint8 iDestAddrB[16];

		TUint16 iDestAddrW[8];

		TUint32 iDestAddrL[4];

		};

};

/**

@internalComponent

*/

NONSHARABLE_CLASS(CLanIp6Bearer) : public CLanxBearer

{

public:

	CLanIp6Bearer(CLANLinkCommon* aLink);

	virtual void ConstructL();

	// MLowerControl

	virtual TInt Control(TUint aLevel,TUint aName,TDes8& aOption);

	virtual TInt GetConfig(TBinderConfig& aConfig);

	// MLowerDataSender

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

	//Additional methods.

	// Perhaps need different version of this

	virtual TBool WantsProtocol(TUint16 aProtocolCode,const TUint8* aPayload);

	virtual void Process(RMBufChain& aPdu,TAny* aLLC);

	virtual void UpdateMACAddr();

	virtual const TDesC8& ProtocolName() const;

	// Support for provisioning

	virtual void SetProvisionL(const Meta::SMetaData* aProvision);

private:

	void ResolveMulticastIp6(TSockAddr& aDstAddr,RMBufChain& aPdu);

	void ShiftLinkLayerAddress(TSockAddr& aDstAddr);

	void ReadCommDbLanSettingsL();

	enum {KIPProtocol=0x800, KIP6Protocol=6};

	// 32-bit addresses in IPv4.

	TInetAddr iIpAddr;

	TEui64Addr iEuiMac; // yet another variant on the theme.

	TIp6Addr iLocalAddr;

	TIp6Addr iPrimaryDns;

	TIp6Addr iSecondaryDns;

	const TLanIp6Provision* iProvision;		// Provisioning information from SCPR

};

inline CLanIp6Bearer::CLanIp6Bearer(CLANLinkCommon* aLink) : 

   CLanxBearer(aLink)

{

}

#endif