omadrm/drmengine/agentv2/src/DcfCache.cpp
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Thu, 17 Dec 2009 08:52:27 +0200
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/*
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* Copyright (c) 2002-2009 Nokia Corporation and/or its subsidiary(-ies).
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* All rights reserved.
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* This component and the accompanying materials are made available
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* under the terms of "Eclipse Public License v1.0"
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* which accompanies this distribution, and is available
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* at the URL "http://www.eclipse.org/legal/epl-v10.html".
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*
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* Initial Contributors:
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* Nokia Corporation - initial contribution.
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*
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* Contributors:
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*
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* Description:  Implementation of the DCF cache class
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*
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*/
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// INCLUDE FILES
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#include <f32file.h>
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#include <e32base.h>
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#include <symmetric.h>
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#include <rijndael.h>
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#include "DcfCache.h"
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#include "DcfCommon.h"
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#include "DrmRightsClient.h"
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// ============================ MEMBER FUNCTIONS ===============================
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// -----------------------------------------------------------------------------
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// CDcfCache::CDcfCache
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// C++ default constructor can NOT contain any code, that
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// might leave.
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// -----------------------------------------------------------------------------
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//
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#ifdef ASYNC_READ
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CDcfCache::CDcfCache(
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    RDRMRightsClient& aRightsClient,
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    RFile& aFile,
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    CDcfCommon& aDcf,
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    TInt aPageSize,
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    TInt aPageCount ) :
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CActive( CActive::EPriorityStandard ),
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iFile( aFile ),
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iRightsClient(aRightsClient ),
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iDcf( aDcf ),
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iPageSize( aPageSize ),
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iPageCount( aPageCount ),
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iDecryptionMode( EServerSide ),
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iDes( 0 ),
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iAsyncReadingOngoing( EFalse )
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    {
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    }
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#else
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CDcfCache::CDcfCache(
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    RDRMRightsClient& aRightsClient,
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    RFile& aFile,
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    CDcfCommon& aDcf,
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    TInt aPageSize,
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    TInt aPageCount ) :
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iFile( aFile ),
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iRightsClient( aRightsClient ),
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iDcf( aDcf ),
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iPageSize( aPageSize ),
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iPageCount( aPageCount ),
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iDecryptionMode( EServerSide )
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    {
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    }
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#endif
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// -----------------------------------------------------------------------------
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// CDcfCache::ConstructL
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// Symbian 2nd phase constructor can leave.
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// -----------------------------------------------------------------------------
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//
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void CDcfCache::ConstructL()
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    {
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    for ( TInt i = 0; i < iPageCount; i++ )
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        {
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        iPage.AppendL( new ( ELeave ) TUint8[iPageSize] );
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        iPageUsageCount.AppendL( -1 );
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        iPagePosition.AppendL( -1 );
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        }
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    }
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// -----------------------------------------------------------------------------
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// CDcfCache::NewL
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// Two-phased constructor.
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// -----------------------------------------------------------------------------
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//
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CDcfCache* CDcfCache::NewL( RDRMRightsClient& aRightsClient, RFile& aFile,
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    CDcfCommon& aDcf, TInt aPageSize, TInt aPageCount )
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    {
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    CDcfCache* self = new ( ELeave ) CDcfCache( aRightsClient, aFile, aDcf,
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        aPageSize, aPageCount );
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    CleanupStack::PushL( self );
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    self->ConstructL();
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    CleanupStack::Pop( self );
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    return self;
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    }
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// -----------------------------------------------------------------------------
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// CDcfCache::~CDcfCache
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// Destructor
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// -----------------------------------------------------------------------------
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//
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CDcfCache::~CDcfCache()
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    {
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#ifdef ASYNC_READ
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    if ( IsActive() )
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        {
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        if ( iAsyncReadingOngoing )
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            {
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            Cancel();
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            }
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        else
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            {
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            TRequestStatus* status = &iStatus;
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            User::RequestComplete( status, KErrNone );
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            Cancel();
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            }
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        }
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#endif
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    iPage.ResetAndDestroy();
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    iPage.Close();
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    iPagePosition.Close();
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    iPageUsageCount.Close();
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    }
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// -----------------------------------------------------------------------------
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// CDcfCache::Read
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// -----------------------------------------------------------------------------
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//
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TInt CDcfCache::Read( TInt& aPos, TDes8& aDes, TInt aLength )
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    {
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    TInt r = KErrNone;
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    // Check that the position is valid and the length is valid
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    if ( aPos < 0 || aLength < 0 )
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        {
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        return KErrArgument;
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        }
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    if ( iPageCount > 0 )
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        {
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        TRAP(r, CachedReadL(aPos, aDes, aLength));
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        }
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    else
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        {
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        TRAP(r, UncachedReadL(aPos, aDes, aLength));
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        }
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    if ( r != KErrNone )
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   158
        {
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   159
        RDebug::Printf( "CDcfCache::Read error: %d", r );
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   160
        }
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    return r;
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    }
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// -----------------------------------------------------------------------------
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// CDcfCache::Read
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// -----------------------------------------------------------------------------
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//
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   168
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#ifdef ASYNC_READ
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   170
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TInt CDcfCache::Read( TInt aPos, TDes8& aDes, TInt aLength,
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    TRequestStatus& aStatus )
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    {
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   174
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   175
    // Check that the position is valid and the length is valid
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   176
    if ( aPos < 0 || aLength < 0 )
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   177
        {
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   178
        return KErrArgument;
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   179
        }
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   180
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   181
    if ( !IsAdded() )
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   182
        {
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   183
        CActiveScheduler::Add( this );
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   184
        }
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   185
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   186
    if ( iAsyncReadingOngoing )
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   187
        {
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   188
        return KErrInUse;
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   189
        }
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   190
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   191
    iError = KErrNone;
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   192
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   193
    iAsyncReadingOngoing = ETrue;
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   194
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   195
    iPos = aPos;
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   196
    iLength = aLength;
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   197
    iDes = &aDes;
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   198
    iOperation = EPosRead;
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   199
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   200
    iAsyncStatus = &aStatus;
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   201
    *iAsyncStatus = KRequestPending;
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   202
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   203
    TRequestStatus* ownStatus = &iStatus;
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   204
    *ownStatus = KRequestPending;
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   205
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   206
    SetActive();
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   207
    User::RequestComplete( ownStatus, KErrNone );
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   208
    return KErrNone;
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   209
    }
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   210
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   211
// -----------------------------------------------------------------------------
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   212
// CDcfCache::ReadCancel
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   213
// -----------------------------------------------------------------------------
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   214
//
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   215
void CDcfCache::ReadCancel( TRequestStatus& aStatus )
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   216
    {
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   217
    // only cancel if needed
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   218
    TRequestStatus* status( &aStatus );
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   219
    if ( IsActive() && iAsyncStatus == status )
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parents:
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   220
        {
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parents:
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   221
        if ( iAsyncReadingOngoing )
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parents:
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   222
            {
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   223
            Cancel();
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   224
            iAsyncReadingOngoing = EFalse;
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   225
            iAsyncStatus = NULL;
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parents:
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   226
            User::RequestComplete( status, KErrCancel );
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diff changeset
   227
            }
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   228
        }
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   229
    }
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   230
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   231
#endif
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   232
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   233
// -----------------------------------------------------------------------------
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   234
// CDcfCache::CachedReadL
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   235
// -----------------------------------------------------------------------------
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   236
//
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   237
void CDcfCache::CachedReadL( TInt& aPos, TDes8& aDes, TInt aLength )
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   238
    {
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   239
    TInt i;
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parents:
diff changeset
   240
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parents:
diff changeset
   241
    // Check that the position is valid and the length is valid
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parents:
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   242
    if ( aPos < 0 || aLength < 0 )
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parents:
diff changeset
   243
        {
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parents:
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   244
        User::Leave( KErrArgument );
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   245
        }
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parents:
diff changeset
   246
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parents:
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   247
    aDes.SetLength( 0 );
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   248
    while ( aLength > 0 )
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parents:
diff changeset
   249
        {
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parents:
diff changeset
   250
        for ( i = 0; aLength > 0 && i < iPageCount; i++ )
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   251
            {
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parents:
diff changeset
   252
            if ( InPage( i, aPos ) )
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   253
                {
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parents:
diff changeset
   254
                CopyOut( i, aDes, aPos, aLength );
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   255
                }
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parents:
diff changeset
   256
            }
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   257
        if ( i == iPageCount && aLength > 0 )
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   258
            {
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   259
            i = GetFreePage();
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   260
            if ( iDcf.iEncryptionMethod == EMethodAES_128_CBC )
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   261
                {
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   262
                ReadAndDecryptPageL( i, aPos );
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   263
                CopyOut( i, aDes, aPos, aLength );
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   264
                }
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   265
            else
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   266
                {
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parents:
diff changeset
   267
                ReadPageL( i, aPos );
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   268
                CopyOut( i, aDes, aPos, aLength );
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   269
                }
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   270
            }
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   271
        }
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parents:
diff changeset
   272
    }
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parents:
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   273
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
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   274
// -----------------------------------------------------------------------------
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
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   275
// CDcfCache::UncachedReadL
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parents:
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   276
// -----------------------------------------------------------------------------
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   277
//
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   278
void CDcfCache::UncachedReadL( TInt& aPos, TDes8& aDes, TInt aLength )
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
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   279
    {
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
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   280
    HBufC8* buffer = NULL;
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   281
    TPtr8 ptr( NULL, 0 );
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   282
    TBuf8<KDCFKeySize> iv;
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   283
    TInt pos;
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   284
    TInt length;
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   285
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   286
    // Check that the position is valid and the length is valid
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   287
    if ( aPos < 0 || aLength < 0 )
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   288
        {
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   289
        User::Leave( KErrArgument );
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   290
        }
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   291
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   292
    if ( aPos + aLength > iDcf.iPlainTextLength )
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   293
        {
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   294
        if ( aPos < iDcf.iPlainTextLength )
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   295
            {
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   296
            aLength = iDcf.iPlainTextLength - aPos;
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   297
            }
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   298
        else
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   299
            {
95b198f216e5 Revision: 200949
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parents:
diff changeset
   300
            aLength = 0;
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   301
            }
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   302
        }
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   303
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   304
    if ( iDcf.iEncryptionMethod == EMethodAES_128_CBC )
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   305
        {
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   306
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   307
        // Nothing to read:
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   308
        if ( aLength == 0 )
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   309
            {
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   310
            aDes.SetLength( aLength );
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   311
            return;
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   312
            }
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   313
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   314
        buffer = HBufC8::NewLC( aLength + 2 * KDCFKeySize );
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   315
        ptr.Set( buffer->Des() );
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   316
        pos = ( ( aPos / KDCFKeySize ) * KDCFKeySize ) + iDcf.iOffset;
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   317
        User::LeaveIfError( iFile.Read( pos, iv, KDCFKeySize ) );
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   318
        length = ( ( aLength / KDCFKeySize ) * KDCFKeySize ) + 2
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   319
            * KDCFKeySize;
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   320
        User::LeaveIfError( iFile.Read( ptr, length ) );
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   321
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   322
        // Make sure we have the correct amount of data
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   323
        if ( ptr.Length() % KDCFKeySize )
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   324
            {
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   325
            length = ( ( ptr.Length() / KDCFKeySize ) * KDCFKeySize );
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   326
            ptr.SetLength( length );
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   327
            }
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   328
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   329
        // If not enough was read to get any content return an empty descriptor
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   330
        if ( ptr.Length() == 0 )
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   331
            {
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   332
            aDes.SetLength( 0 );
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   333
            CleanupStack::PopAndDestroy( buffer );
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   334
            return;
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   335
            }
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   336
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   337
        DecryptL( iv, ptr );
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   338
        length = Min( aDes.MaxLength(), ptr.Length() - aPos % KDCFKeySize );
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   339
        aDes.Copy( ptr.Mid( aPos % KDCFKeySize, length ) );
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   340
        if ( aDes.Length() > aLength )
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   341
            {
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   342
            aDes.SetLength( aLength );
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   343
            }
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   344
        CleanupStack::PopAndDestroy( buffer );
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   345
        }
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   346
    else
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   347
        {
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   348
        User::LeaveIfError( iFile.Read( aPos + iDcf.iOffset, aDes, aLength ) );
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   349
        }
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   350
    aPos += aDes.Length();
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   351
    }
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   352
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   353
// -----------------------------------------------------------------------------
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   354
// CDcfCache::GetFreePage
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   355
// -----------------------------------------------------------------------------
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   356
//
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   357
TInt CDcfCache::GetFreePage()
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   358
    {
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   359
    TInt i;
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   360
    TInt n = -1;
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   361
    TUint c = KMaxTUint32;
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   362
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   363
    for ( i = 0; i < iPageCount; i++ )
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   364
        {
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   365
        if ( iPageUsageCount[i] == -1 )
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   366
            {
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   367
            n = i;
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   368
            break;
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   369
            }
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   370
        else if ( iPageUsageCount[i] < c )
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   371
            {
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   372
            c = iPageUsageCount[i];
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   373
            n = i;
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   374
            }
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   375
        }
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   376
    return n;
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   377
    }
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   378
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   379
// -----------------------------------------------------------------------------
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   380
// CDcfCache::ReadPageL
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   381
// -----------------------------------------------------------------------------
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   382
//
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   383
void CDcfCache::ReadPageL( TInt aPage, TInt aPosition )
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   384
    {
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   385
    TInt pos;
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   386
    TBuf8<KDCFKeySize> iv;
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   387
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   388
    iPageUsageCount[aPage] = 0;
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   389
    iPagePosition[aPage] = ( aPosition / iPageSize ) * iPageSize;
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   390
    pos = iPagePosition[aPage] + iDcf.iOffset;
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   391
    iFile.Seek( ESeekStart, pos );
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   392
    TPtr8 ptr( iPage[aPage], iPageSize );
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   393
    User::LeaveIfError( iFile.Read( ptr ) );
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   394
    }
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   395
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   396
// -----------------------------------------------------------------------------
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   397
// CDcfCache::ReadAndDecryptPageL
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   398
// -----------------------------------------------------------------------------
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   399
//
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   400
void CDcfCache::ReadAndDecryptPageL( TInt aPage, TInt aPosition )
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   401
    {
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   402
    TInt pos;
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   403
    TBuf8<KDCFKeySize> iv;
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   404
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   405
    iPageUsageCount[aPage] = 0;
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   406
    iPagePosition[aPage] = ( aPosition / iPageSize ) * iPageSize;
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   407
    pos = iPagePosition[aPage] + iDcf.iOffset;
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   408
    User::LeaveIfError( iFile.Seek( ESeekStart, pos ) );
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   409
    User::LeaveIfError( iFile.Read( iv ) );
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   410
    TPtr8 ptr( iPage[aPage], iPageSize );
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   411
    pos += KDCFKeySize;
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   412
    User::LeaveIfError( iFile.Read( ptr ) );
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   413
    ptr.SetLength( iPageSize );
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   414
    DecryptL( iv, ptr );
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   415
    }
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   416
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   417
// -----------------------------------------------------------------------------
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   418
// CDcfCache::CopyOut
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   419
// -----------------------------------------------------------------------------
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   420
//
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   421
void CDcfCache::CopyOut( TInt aPage, TDes8& aDes, TInt& aPosition,
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   422
    TInt& aLength )
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   423
    {
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   424
    TInt n;
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   425
    TInt offset;
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   426
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   427
    aLength = Min( aLength, iDcf.iPlainTextLength - aPosition );
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   428
    aLength = Min( aLength, aDes.MaxLength() - aDes.Length() );
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   429
    offset = aPosition - iPagePosition[aPage];
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   430
    n = Min( aLength, iPageSize - offset );
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   431
    aDes.Append( iPage[aPage] + offset, n );
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   432
    aLength -= n;
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   433
    aPosition += n;
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   434
    iPageUsageCount[aPage]++;
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   435
    }
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   436
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   437
// -----------------------------------------------------------------------------
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   438
// CDcfCache::InPage
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   439
// -----------------------------------------------------------------------------
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   440
//
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   441
TBool CDcfCache::InPage( TInt aPage, TInt aPosition )
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   442
    {
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   443
    return iPagePosition[aPage] != -1 && iPagePosition[aPage] <= aPosition
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   444
        && aPosition < iPagePosition[aPage] + iPageSize ? ETrue : EFalse;
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   445
    }
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   446
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   447
// -----------------------------------------------------------------------------
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   448
// CDcfCache::SetKey
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   449
// -----------------------------------------------------------------------------
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   450
//
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   451
void CDcfCache::SetKey( const TDesC8& aKey )
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   452
    {
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   453
    iKey.Copy( aKey );
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   454
    iDecryptionMode = EClientSide;
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   455
    }
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   456
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   457
// -----------------------------------------------------------------------------
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   458
// CDcfCache::DecryptL
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   459
// -----------------------------------------------------------------------------
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   460
//
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   461
void CDcfCache::DecryptL( const TDesC8& aIv, TPtr8& aPtr )
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   462
    {
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   463
    if ( iDecryptionMode == EClientSide )
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   464
        {
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   465
        CModeCBCDecryptor* cbc( NULL );
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   466
        CAESDecryptor* aes( CAESDecryptor::NewLC( iKey ) );
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   467
        cbc = CModeCBCDecryptor::NewL( aes, aIv );
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   468
        CleanupStack::Pop( aes );
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   469
        aes = NULL;
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   470
        CleanupStack::PushL( cbc );
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   471
        for ( TInt count = 0; count < aPtr.Length(); count += KDCFKeySize )
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   472
            {
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   473
            TPtr8 d( aPtr.MidTPtr( count, KDCFKeySize ) );
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   474
            cbc->Transform( d );
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   475
            }
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   476
        CleanupStack::PopAndDestroy( cbc );
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   477
        }
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   478
    else
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   479
        {
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   480
        User::LeaveIfError( iRightsClient.Decrypt( aIv, aPtr ) );
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   481
        }
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   482
    }
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   483
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   484
#ifdef ASYNC_READ
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   485
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   486
// -----------------------------------------------------------------------------
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   487
// CDcfCache::RunL
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   488
// -----------------------------------------------------------------------------
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   489
//
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   490
void CDcfCache::RunL()
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   491
    {
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   492
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   493
    switch ( iOperation )
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   494
        {
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   495
        case ENonPosRead:
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   496
            {
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   497
            break;
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   498
            }
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   499
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   500
        case EPosRead:
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   501
            {
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   502
            ReadAsyncL();
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   503
            iAsyncReadingOngoing = EFalse;
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   504
            User::RequestComplete( iAsyncStatus, KErrNone );
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   505
            iAsyncStatus = NULL;
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   506
            break;
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   507
            }
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   508
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   509
        default:
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   510
            {
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   511
            break;
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   512
            }
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   513
        }
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   514
    }
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   515
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   516
// -----------------------------------------------------------------------------
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   517
// CDcfCache::DoCancel
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   518
// -----------------------------------------------------------------------------
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   519
//
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   520
void CDcfCache::DoCancel()
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   521
    {
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   522
    }
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   523
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   524
// -----------------------------------------------------------------------------
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   525
// CDcfCache::RunError
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   526
// -----------------------------------------------------------------------------
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   527
//
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   528
TInt CDcfCache::RunError( TInt aError )
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   529
    {
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   530
    iError = aError;
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   531
    User::RequestComplete( iAsyncStatus, iError );
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   532
    return KErrNone;
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   533
    }
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   534
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   535
// -----------------------------------------------------------------------------
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   536
// CDcfCache::ReadAsyncL
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   537
// -----------------------------------------------------------------------------
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   538
//
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   539
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   540
void CDcfCache::ReadAsyncL()
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   541
    {
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   542
    if ( iPageCount > 0 )
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   543
        {
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   544
        TRAP(iError, CachedReadL(iPos, *iDes, iLength));
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   545
        }
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   546
    else
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   547
        {
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   548
        TRAP(iError, UncachedReadL(iPos, *iDes, iLength));
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   549
        }
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   550
    }
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   551
#endif //ASYNC_READ
95b198f216e5 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   552
//  End of File