// Copyright (c) 2004-2009 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:

// eui_addr.h - modified EUI-xx for IPv6 interface identifiers

// Modified EUI-xx address structure for IPv6 interface identifiers

//

/**

 @file eui_addr.h

 @publishedAll

 @released

*/

#ifndef __EUI_ADDR_H__

#define __EUI_ADDR_H__

#include <e32def.h>		// TUint*

#include "es_sock.h"	// TSockAddr

/**  Address family ID */

const TUint KAfEui64	= 0x0F64;	//< TODO

/**  Panic codes.

@publishedAll

@released

*/

enum TEuiPanic

{

	EEuiPanicFamilyMismatch,

	EEuiPanicBitIsNotBit,

	EEuiPanicSourceTooLong

};

//

// Lots of these functions should be inlined -tom

//

/**

 * The raw 64 bits of Modified EUI-64 address stored in network byte order.

 * @publishedAll

 * @released

 */

class TE64Addr

{

 public:

	IMPORT_C TE64Addr();					//< Constructs an address with zero value

	IMPORT_C TE64Addr(const TE64Addr& aAddr);		//< Constructs an address with given value

	IMPORT_C TE64Addr(const TInt64& aAddr);			//< Constructs an address with given value

	IMPORT_C TE64Addr(const TUint8* aPtr, TUint aLength);	//< Constructs an address with given value

	IMPORT_C void SetAddr(const TE64Addr& aAddr);			//< Sets the address value

	IMPORT_C void SetAddr(const TInt64& aAddr);			//< Sets the address value

	IMPORT_C void SetAddr(const TUint8* aPtr, TUint aLength);	//< Sets the address value

	IMPORT_C void SetAddrZero();	//< Creates a zero address

	/**

	 * Creates a random address.

	 * The Group bit is set to 0.

	 * The Universal bit is set to 0.

	 */

	IMPORT_C void SetAddrRandom();

	/**

	 * Creates a random non-zero address.

	 * The Group bit is set to 0.

	 * The Universal bit is set to 0.

	 */

	IMPORT_C void SetAddrRandomNZ();

	/**

	 * Creates a random non-zero address that does not match the parameter address.

	 * The Group bit is set to 0.

	 * The Universal bit is set to 0.

	 */

	IMPORT_C void SetAddrRandomNZButNot(const TE64Addr& aAddr);

	// Really should define TE48Addr for this... -tom

	IMPORT_C void SetAddrFromEUI48(const TUint8* aPtr);	//< Reads and converts a value from EUI-48 (6 bytes)

	IMPORT_C void SetGroupBit(TBool aBit = 1);		//< Sets the Group bit to 1 by default

	IMPORT_C void SetUniversalBit(TBool aBit = 1);		//< Sets the Universal bit to 1 by default

	IMPORT_C TBool Match(const TE64Addr& aAddr) const;	//< TRUE if the address matches given address

	IMPORT_C TBool IsZero() const;				//< TRUE if the address is a zero address

	IMPORT_C TBool IsGroup() const;				//< TRUE if the Group bit is set in the address

	IMPORT_C TBool IsUniversal() const;			//< TRUE if the Universal bit is set in the address

//	IMPORT_C TInt Input(const TDesC& aBuf);			//< Reads a value for the address from a string

	IMPORT_C void Output(TDes& aBuf) const;			//< Writes the address into a string

	IMPORT_C static TUint AddrLen();			//< Returns the size of raw KAfEui64 content format

	IMPORT_C TUint8* AddrPtr();				//< Returns a pointer to raw KAfEui64 content format

	IMPORT_C const TUint8* AddrPtrC() const;		//< Returns a const pointer to raw KAfEui64 content format

 private:

	union

	{

		TUint8 iAddr8[64 / 8];

		TUint16 iAddr16[64 / 16];

		TUint32 iAddr32[64 / 32];

	} u;

};

struct SE64Addr {

	TE64Addr iAddr;		//< 8 bytes of Modified EUI-64 address (64 bits)

};

/**

 * This class specializes the generic socket server address class

 * TSockAddr for the IPv6 Interface Identifier; the Modified EUI-64

 * address. Value KAfEui64 is used for the protocol family field

 * of the TSockAddr base class.

 *

 * @publishedAll

 * @released

 */

class TEui64Addr : public TSockAddr

{

 public:

	/**

	 * Constructs a basic IPv6 Interface Identifier.

	 * The family is initialized to KafEui64.

	 * The port (unused) is initialized to 0.

	 * The address is set to zero address.

	 */

	IMPORT_C TEui64Addr();

	/**

	 * Constructs an IPv6 Interface Identifier from TSockAddr.

	 * The family of the parameter must be KAfEui64 or 0.

	 * The family of the resulting address is KAfEui64.

	 * The port (unused) is initialized to 0.

	 * The address bytes are copied from the parameter.

	 *

	 * @param anAddr TSockAddr to be used as initial content.

	 */

	IMPORT_C TEui64Addr(const TSockAddr& aAddr);

	/**

	 * Constructs an IPv6 Interface Identifier from TE64Addr.

	 * The family is initialized to KAfEui64.

	 * The port (unused) is initialized to 0.

	 * The address bytes are copied from the parameter.

	 *

	 * @param aAddr TE64Addr to be used as initial content.

	 */

	inline TEui64Addr(const TE64Addr& aAddr);

	/**

	 * Initializes the TSockAddr parts of an IPv6 Interface Identifier.

	 * The family is set to KAfEui64.

	 * The port (unused) is initialized to 0.

	 * The address bytes are not touched.

	 */

	IMPORT_C void Init();

	/**

	 * Sets the address bytes to given value.

	 * The other TSockAddr fields are not touched.

	 */

	IMPORT_C void SetAddress(const TE64Addr& aAddr);

	IMPORT_C TE64Addr& Address() const;	//< Accesses the address bytes

	IMPORT_C TBool Match(const TEui64Addr& aAddr) const;	//< TRUE if the address bytes match the parameter's

	IMPORT_C TBool IsZero() const;				//< TRUE if the address bytes are all zeros

	IMPORT_C static TEui64Addr& Cast(const TSockAddr& aAddr);	//< Unsafely casts a TSockAddr to TEui64Addr

	IMPORT_C static TEui64Addr& Cast(const TSockAddr* aAddr);	//< Unsafely casts a TSockAddr to TEui64Addr

 protected:

	IMPORT_C SE64Addr* AddrPtr() const;	//< Returns a pointer to KAfEui64 content format

	IMPORT_C static TUint AddrLen();	//< Returns the size of the KAfEui64 content format

};

inline TEui64Addr::TEui64Addr(const TE64Addr& aAddr) : TSockAddr()

{

	Init();

	SetAddress(aAddr);

};

#endif