// Copyright (c) 2008-2009 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:

// MacTableManager.cpp

// Hardware address manager class implementation.

// 

//

/**

 @file

 @internalTechnology

*/

#include "dhcphwaddrmanager.h"

  /**

  * Constants used to compare with the received hardware address. Macro __GNUC__ is defined to 

  * gccxml build error "value too large for type 'long'" avoid the error, though it can expand 

  * the 'Uint64' to 'long long unsigned int'

  *

  *	@internalTechnology

  */

#ifdef __GNUC__

const Uint64 KAnyMac = 0xFF;

const Uint64 KResetMac = 0x00;

#else

const Uint64 KAnyMac = 0xFFFFFFFFFFFF;

const Uint64 KResetMac = 0x000000000000;

#endif //__GNUC__

/**

  * Constructor

  *

  *	@internalTechnology

  *

  */

CDhcpHwAddrManager::CDhcpHwAddrManager()

	{

	}

/**

  * Destructor frees the list

  *

  *	@internalTechnology

  *

  */

CDhcpHwAddrManager::~CDhcpHwAddrManager()

	{

	iHardwareAddressList.Close();

	}

/**

  * Static function to create the instance of CDhcpHwAddrManager.

  *

  *	@internalTechnology

  *

  */

CDhcpHwAddrManager* CDhcpHwAddrManager::NewL()

	{

	return new (ELeave) CDhcpHwAddrManager();

	}

/**

  * Function to check that atleast any one of the harware address is provisioned or not. 

  *

  *	@internalTechnology

  * @return - ETrue if the list has at least one entry, otherwise EFalse.

  */

TBool CDhcpHwAddrManager::IsHwAddressProvisioned()

	{

	return (iHardwareAddressList.Count() > 0) ? ETrue : EFalse;

	}

/**

  * Function inserts the provided Hardware Address into RArray. If the received address (KResetMac)

  * is to reset the iHardwareAddressList, then clears the list.

  *

  *	@internalTechnology

  * @param aInt - 48 bits of hardware address.

  */

void CDhcpHwAddrManager::Insert(const Uint64& aInt)

	{

	if(aInt == KResetMac)

		{

		iHardwareAddressList.Close();

		return;

		}

	TInt index = iHardwareAddressList.Find(aInt, TIdentityRelation<Uint64>());

	if(index == KErrNotFound)

		{

		iHardwareAddressList.Append(aInt);

		}

	}

/**

  * Function identfies whether the received Hardware Address is Provisioned by the control 

  * application or not.

  *

  *	@internalTechnology

  * @param aInt - 48 bits of hardware address.

  * @return - ETrue, if the received address exists in the list, otherwise EFalse.

  */

TBool CDhcpHwAddrManager::Provisioned(const Uint64& aInt)

	{	

	return  ( iHardwareAddressList.Find(aInt, TIdentityRelation<Uint64>()) == KErrNotFound )? EFalse : ETrue;

	}

/**

  * Function identfies whether the DHCP server shall provide IP to any client or not.

  * If the provided hardware address is KAnyMac, then DHCP assigns IP in FCFS basis.

  *

  *	@internalTechnology

  * @return - ETrue if the application provides KAnyMac to DHCP server, otherwise EFlase.

  */

TBool CDhcpHwAddrManager::IsAnyClientAllowed()

	{

	return  ( iHardwareAddressList.Find(KAnyMac, TIdentityRelation<Uint64>()) == KErrNotFound )? EFalse : ETrue;

	}