// 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:

//

/**

 @file

 @internalComponent 

*/

#if !defined(__ProtocolHeaders_H__)

#define __ProtocolHeaders_H__

#define DotToIp(a,b,c,d) (((a)<<24) | ((b)<<16) | ((c)<<8) | (d))

const TUint KUDPHeaderSize = 8;

const TUint KIPMinHeaderSize = 20;

const TUint KIPDefaultTOS			= 0;

const TInt KIPDefaultTTL			= 255;

const TUint KIPVersion				= 4;

struct TGenericHeader

{

};

/**

IP message header

*/

struct TIpHdr

{

public:

	//inline TUint32 DestAddr() const {return(BigEndian::Get32(iDestAddr.Begin()));};

	//inline TUint32 SrcAddr() const {return(BigEndian::Get32(iSrcAddr.Begin()));};

	//inline TUint16 FragOffset() const {return(BigEndian::Get16(iFragOffset.Begin()));};

	/** Bits 7..4 of iVersion */

	inline	TUint	Version() const {return (iVersion>>4); }; 

	inline	void	SetVersion(TUint aVal) { iVersion = (TUint8)((iVersion&0xf)|((aVal&0xf)<<4)); };

	/** Bits 3..0 of iVersion */

	inline	TUint	HdrLen() const { return (iVersion&0xf)<<2; }; 

	inline	void	SetHdrLen(TUint aVal) { iVersion = 

	                (TUint8)((iVersion&0xf0)|((TUint8)(aVal>>2)&0xf)); };

	inline	TUint	TOS() { return iTOS; };

	inline	void	SetTOS(TUint aVal) { iTOS = (TUint8)(aVal&0xff); };

	inline	TUint16	Length() { return BigEndian::Get16((TUint8*)&iLength); };

	inline	void	SetLength(TUint16 aVal) { BigEndian::Put16((TUint8*)&iLength,aVal); };

	inline	TUint16	Ident() { return BigEndian::Get16((TUint8*)&iIdent); };

	inline	void	SetIdent(TUint16 aVal) { BigEndian::Put16((TUint8*)&iIdent,aVal); };

	inline	TUint8	TTL() { return iTTL; };

	inline	void	SetTTL(TUint aVal) { iTTL = (TUint8)(aVal&0xff); };

	inline	TUint8	Protocol() { return iProtocol; };

	inline	void	SetProtocol(TUint aVal) { iProtocol = (TUint8)(aVal&0xff); };

	inline	TUint16	Checksum() { return BigEndian::Get16((TUint8*)&iChecksum); };

	inline	void	SetChecksum(TUint16 aVal) { BigEndian::Put16((TUint8*)&iChecksum,aVal); };

	inline TUint32 DestAddr() const {return(BigEndian::Get32(iDestAddr));};

	inline TUint32 SrcAddr() const {return(BigEndian::Get32(iSrcAddr));};

	inline TUint16 FragOffset() const {return BigEndian::Get16(iFragOffset);};

	inline void SetDestAddr(TUint32 aVal) const { BigEndian::Put32((TUint8*)(&iDestAddr),aVal);};

	inline void SetSrcAddr(TUint32 aVal) const { BigEndian::Put32((TUint8*)(&iSrcAddr),aVal);};

	inline void SetFragOffset(TUint16 aVal) const {BigEndian::Put16((TUint8*)(&iFragOffset),aVal);};

protected:

	TUint8 iVersion;

	TUint8 iTOS;

	TUint16 iLength;

	TUint16 iIdent;

	//TFixedArray<TUint8,2> iFragOffset;

	TUint8 iFragOffset[2];

	TUint8 iTTL;

	TUint8 iProtocol;

	TUint16 iChecksum;

	//TFixedArray<TUint8,4> iSrcAddr;

	//TFixedArray<TUint8,4> iDestAddr;

	TUint8 iSrcAddr[4];

	TUint8 iDestAddr[4];

};

#endif