/*

* Copyright (c) 2005-2008 Nokia Corporation and/or its subsidiary(-ies).

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of the License "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:   Implementation of the WlanDot11IbssMode class.

*

*/

/*

* %version: 21 %

*/

#include "config.h"

#include "UmacDot11IbssMode.h"

#include "UmacContextImpl.h"

// ======== MEMBER FUNCTIONS ========

// ---------------------------------------------------------------------------

// 

// ---------------------------------------------------------------------------

//

void WlanDot11IbssMode::DoSetTxMpduDaAddress( 

    SDataFrameHeader& aDataFrameHeader, 

    const TMacAddress& aMac ) const

    {

    aDataFrameHeader.iAddress1 = aMac;

    }

// ---------------------------------------------------------------------------

// 

// ---------------------------------------------------------------------------

//

TBool WlanDot11IbssMode::DoIsRxFrameSAourAddress( 

    WlanContextImpl& aCtxImpl,

    const SDataFrameHeader& aFrameHeader,

    const SAmsduSubframeHeader* /*aSubFrameHeader*/) const

    {

    return aFrameHeader.iAddress2 == aCtxImpl.iWlanMib.dot11StationId;

    }

// ---------------------------------------------------------------------------

// 

// ---------------------------------------------------------------------------

//

TBool WlanDot11IbssMode::DoIsValidAddressBitCombination(

    const SDataFrameHeader& aFrameHeader ) const

    {

    return !( aFrameHeader.IsFromDsBitSet() 

        || aFrameHeader.IsToDsBitSet() );

    }

// ---------------------------------------------------------------------------

// 

// ---------------------------------------------------------------------------

//

void WlanDot11IbssMode::DoBuildEthernetFrame(

    TDataBuffer& aBuffer,

    const SDataMpduHeader& aDot11DataMpdu,

    const TUint8* aStartOfEtherPayload,

    TUint aEtherPayloadLength,

    TBool /*aAmsdu*/,

    TUint8* /*aCopyBuffer*/ )

    {

    OsTracePrint( KUmacDetails, (TUint8*)

        ("UMAC: WlanDot11InfrastructureMode::DoBuildEthernetFrame"));

    // copy SA to the correct location.

    os_memcpy( 

        const_cast<TUint8*>(aStartOfEtherPayload) - sizeof( TMacAddress ), 

        reinterpret_cast<const TUint8*>(

            aDot11DataMpdu.iHdr.iAddress2.iMacAddress ),

        sizeof( TMacAddress ) );

    // copy DA to the correct location.

    os_memcpy( 

        const_cast<TUint8*>(aStartOfEtherPayload) 

            - ( 2 * sizeof( TMacAddress ) ), 

        reinterpret_cast<const TUint8*>(

            aDot11DataMpdu.iHdr.iAddress1.iMacAddress ),

        sizeof( TMacAddress ) );

    // set the length

    aBuffer.KeSetLength( 

        aEtherPayloadLength 

        + ( sizeof( TMacAddress ) * 2 ) );

    // set the frame type

    aBuffer.FrameType( TDataBuffer::KEthernetFrame );

    // set the offset to the beginning of the ready ethernet frame 

    // from the beginning of the Rx buf

    aBuffer.KeSetOffsetToFrameBeginning( 

        aStartOfEtherPayload - ( 2 * sizeof( TMacAddress ) ) // frame beginning

        - aBuffer.KeGetBufferStart() );                      // buffer beginning

    OsTracePrint( KRxFrame, (TUint8*)

        ("UMAC: WlanDot11IbssMode::DoBuildEthernetFrame: offset to frame beginning: %d"),

        aBuffer.KeOffsetToFrameBeginning());

    }