// 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:

//

/**

 @file

 @internalComponent

*/

#include <bluetooth/logger.h>

#include <es_sock.h>

#include "BnepTypes.h"

#include "RBnepFilterMultiAddrSetRequestControl.h"

#include "TBnepBTDevAddr.h"

#ifdef __FLOG_ACTIVE

_LIT8(KLogComponent, LOG_COMPONENT_PAN_BNEP);

#endif

/**

   Retrieve one value pair from a multicast address filter control

   @note This method should be called repeatedly until all the values are read out (ie. return value from the last pair is KErrEof)

   @param aStartValue The start value for the multicast address range

   @param aEndValue The end value of the multicast address range

   @param aIndex The index of the multicast address filter pairs, starting from zero.

   @return KErrNone if there any more addresses in the list, or KErrEof when there are no more addresses left

   @internalComponent

*/

TInt RBnepFilterMultiAddrSetRequestControl::MultiAddrRange (TBnepBTDevAddr& aStartAddr, TBnepBTDevAddr& aEndAddr, TUint aIndex)

    {

    LOG_FUNC

    LOG2(_L8("RBnepFilterMultiAddrSet[%x]: Getting multicast address pair, index %d..."), this, aIndex);

    // since this might be (probably is) from another device, check their quoted size against the size of the packet we've got

    TInt length = Length();

    TInt multiAddrLength = static_cast<TInt>(MulticastAddressListLength());

    TInt preamble = static_cast<TInt>(KSizeOfBnepControlType + KSizeOfMultiAddrFilterListLength);

    if(multiAddrLength <= 0)

        {

        return KErrNotFound;

        }

    if(length < multiAddrLength + preamble)

        {

        LOG3(_L8("RBnepFilterMultiAddrSet[%x]: Multicast address list length is invalid - our mbuf chain length (minus control type and length headers) %d, claimed length %d"), this, (Length() - (KSizeOfBnepControlType + KSizeOfMultiAddrFilterListLength)), MulticastAddressListLength());

        return KErrArgument;

        }

    TUint currentPair = (aIndex*(2*KSizeOfMultiAddr) + KMultiAddrListFirstPairFieldOffset);

	TInt rerr = aStartAddr.SetAddress(*this, currentPair);

	if(rerr == KErrNone)

		{

		rerr = aEndAddr.SetAddress(*this, currentPair + KSizeOfMultiAddr);

		}

    if(rerr != KErrNone || MulticastAddressListLength() <= (currentPair + (2*KSizeOfMultiAddr))) // check if this is the last pair

        {

        LOG1(_L8("RBnepFilterMultiAddrSet[%x]: ...last item in list - returning KErrEof"), this);

        return KErrEof;

        }

    else

        {

        LOG1(_L8("RBnepFilterMultiAddrSet[%x]: ...more items in list - returning KErrNone"), this);

        return KErrNone;

        }

    }

/**

   Return the length of the multicast address list

   @internalComponent

*/

TUint16 RBnepFilterMultiAddrSetRequestControl::MulticastAddressListLength ()

    {

    LOG_FUNC

    TUint16 length;

    length = BigEndian::Get16((First()->Ptr() + KMultiAddrListLengthFieldOffset));

    LOG1(_L8("...multicast address list length %d..."), length);

    return length;

    }