backupandrestore/backupengine/src/sbecompressionandencryption.cpp
author hgs
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permissions -rw-r--r--
201027_03
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// Copyright (c) 2004-2009 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:
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// Implementation of compression and encryption
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// 
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//
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/**
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 @file
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*/
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#include "sbencrypt.h"
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#include "sbecompressionandencryption.h"
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#include "sblog.h"
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#include "sbtypes.h"
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#include <arc4.h>
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#include <ezcompressor.h>
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#include <ezdecompressor.h>
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// Uncomment the next line if you want to turn off compression & encryption, ignore the warnings.
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//#define TURN_OFF_COMPRESSION_AND_ENCRYPTION
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namespace conn
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	{
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#ifndef TURN_OFF_COMPRESSION_AND_ENCRYPTION
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	const TInt KJavaVirtualMachineSecureId = 0x102033e6;
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	const TInt KMaxHeapSize = KMaxTInt / 2;
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#endif
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	/** Compression block size
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	*/
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	const TInt KCompressionBlockSize = 1024 * 64; // 64K
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	/** Compression growth size
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	This is calculated as the size of the block we want to compress * 1.01. As defined by the ZLib library.
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	*/
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	const TInt CSBECompressAndEncrypt::iCompressionGrowthSize = static_cast<TInt>(KCompressionBlockSize * 0.01) + 12 + sizeof(TCompressionHeader);
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	template <class T> void ReadL(T& aT, TPtr8& aBuffer, TInt aStartAt = 0, TInt aToCopy = sizeof(T))
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	/** Reads data from any given type into aBuffer
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	@param aT type to put in buffer
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	@param aBuffer the buffer
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	@param aStartAt offset of the data
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	@param aToCopy the amount of data to copy
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	*/
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		{
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		TUint8* inData = const_cast<TUint8*>(aBuffer.Ptr());
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		TUint8* outData = (reinterpret_cast<TUint8*>(&aT)) + aStartAt;
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		for (TInt x = 0; x < aToCopy; x++)
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			{
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			*(outData++) = *(inData++);
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			} // for
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		}
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	template<class T> void WriteL(T& aT, TPtr8& aBuffer, TInt aStartAt = 0, TInt aToCopy = sizeof(T))
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	/** Writes data from aBuffer into any given type
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	@param aT type to read in from buffer
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	@param aBuffer the buffer
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	@param aStartAt offset of the data
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	@param aToCopy the amount of data to copy
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	*/
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		{
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		TUint8* inData = reinterpret_cast<TUint8*>(&aT);
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		TUint8* outData = (const_cast<TUint8*>(aBuffer.Ptr())) + aStartAt;
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		for (TInt x = 0; x < aToCopy; x++)
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			{
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			*(outData++) = *(inData++);
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			} // for
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		aBuffer.SetLength(aBuffer.Length() + sizeof(T));
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		}
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	CSBECompressAndEncrypt* CSBECompressAndEncrypt::NewLC(CSBGenericTransferType*& apTransferType, TPtr8& aInputData)
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	/** Standard Symbian constructor
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	@param apTransferType transfer type of data.
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	@param aInputData data block to be used. Start point will be changed to allow for compression.
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	*/
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		{
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		CSBECompressAndEncrypt* self = new(ELeave) CSBECompressAndEncrypt();
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		CleanupStack::PushL(self);
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		self->ConstructL(apTransferType, aInputData);
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		return self;
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		}
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	CSBECompressAndEncrypt::CSBECompressAndEncrypt() :
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		iActualStart(NULL, 0), iCipher(NULL), iIsFreed(EFalse)
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	/** Standard C++ Constructor
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	*/
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		{
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		}
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	CSBECompressAndEncrypt::~CSBECompressAndEncrypt()
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	/** Standard C++ Destructor
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	*/
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		{
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#ifndef TURN_OFF_COMPRESSION_AND_ENCRYPTION	
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		if( ! iIsFreed )
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			iOffsetStart->Set(iActualStart);	// free reserved space when leave occurs.
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#endif
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		delete iCipher;
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		}
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	void CSBECompressAndEncrypt::ConstructL(CSBGenericTransferType*& apTransferType, TPtr8& aOutputData)
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	/**
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		Standard Symbian second phase constructor
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   122
		
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	@param apTransferType transfer type of data.
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	@param aInputData data block to be used. Start point will be changed to allow for compression.
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	*/
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		{
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		__LOG2("CSBECompressAndEncrypt::ConstructL() - START - aOutputData: 0x%08x (%d)", aOutputData.Ptr(), aOutputData.Length());
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#ifndef TURN_OFF_COMPRESSION_AND_ENCRYPTION		
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		// Do we need a key source and cipher?
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		TSBDerivedType derivedType = apTransferType->DerivedTypeL();
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		TInt extraToReserve = 0;
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		if ((derivedType == ESIDTransferDerivedType) || (derivedType == EJavaTransferDerivedType))
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			{
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		 	TSecureId secureId;
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		 	TDriveNumber driveNumber;
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		 	if (derivedType == ESIDTransferDerivedType)
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		 		{
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	    		// Need the Sid transfertype
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				CSBSIDTransferType* pSIDTransferType = CSBSIDTransferType::NewL(apTransferType);
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				CleanupStack::PushL(pSIDTransferType);
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		 		secureId = pSIDTransferType->SecureIdL();
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		 		driveNumber = pSIDTransferType->DriveNumberL();
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		 		CleanupStack::PopAndDestroy(pSIDTransferType);
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		 		} // if
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		 	else
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		 		{
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		 		// Java
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		 		secureId.iId = KJavaVirtualMachineSecureId;
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		 		driveNumber = apTransferType->DriveNumberL();
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		 		} // else
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		 	// We will be doing encryption. Get the key
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		 	CSecureBUREncryptKeySource* keySource = CSecureBUREncryptKeySource::NewL();
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		 	CleanupStack::PushL(keySource);
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		 	// Get the key and the buffer?
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		 	keySource->GetBackupKeyL(driveNumber, secureId,
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		 							 iDoEncrypt, iKey, iGotBuffer, iBuffer);
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			if (!iGotBuffer)
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				{
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				// See if there is a default buffer
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				keySource->GetDefaultBufferForBackupL(driveNumber, iGotBuffer, iBuffer);
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				} // if
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		 	CleanupStack::PopAndDestroy(keySource);
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		 	// Create the cipher, if needed.
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		 	if (iDoEncrypt)
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		 		{
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		 		__LOG1("Key length: %d", iKey.Length() * 4);
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			 	iCipher = CARC4::NewL(iKey);
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			 	} // if
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			extraToReserve = sizeof(TEncryptionHeader) + iBuffer.Size();
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		 	} // if
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		// Reserve the space required
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		TInt numberBlocks = (aOutputData.MaxSize() / KCompressionBlockSize) + (((aOutputData.MaxSize() % KCompressionBlockSize) == 0) ? 0 : 1);
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		TInt reservedSpace = (numberBlocks * iCompressionGrowthSize) + extraToReserve;
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		__LOG2("CSBECompressAndEncrypt::ConstructL() - numberBlocks: %d, reservedSpace: %d", numberBlocks, reservedSpace);
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		// Keep a copy of the acutual data block
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		iActualStart.Set(const_cast<TUint8*>(aOutputData.Ptr()), 0, aOutputData.MaxSize());
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		// Reserve the space in the input data
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		if (reservedSpace > aOutputData.MaxSize())
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			{
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			User::Leave(KErrOverflow);
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			}
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		aOutputData.Set((const_cast<TUint8*>(aOutputData.Ptr()) + reservedSpace), 0, aOutputData.MaxSize() - reservedSpace);
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		iOffsetStart = &aOutputData;
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#endif		 	
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		__LOG2("CSBECompressAndEncrypt::ConstructL() - END - aOutputData: 0x%08x (%d)", aOutputData.Ptr(), aOutputData.Length());
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		}
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	void CSBECompressAndEncrypt::PackL(TPtr8& aOutputData)
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	/** Performs the compression and encryption
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	@param aOutputData the compressed data
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	*/
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		{
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		__LOG4("CSBECompressAndEncrypt::PackL() - START - aOutputData: 0x%08x (%d), iActualStart: 0x%08x (%d)", aOutputData.Ptr(), aOutputData.Length(), iActualStart.Ptr(), iActualStart.Length());
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#ifndef TURN_OFF_COMPRESSION_AND_ENCRYPTION		
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		// Add the encryption header
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		TEncryptionHeader encryptionHeader;
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		encryptionHeader.iEncrypted = iDoEncrypt;
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		encryptionHeader.iBufferSize = iBuffer.Size();
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		encryptionHeader.iTotalSize = sizeof(TEncryptionHeader) + encryptionHeader.iBufferSize;
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   212
		
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		__LOG1("CSBECompressAndEncrypt::PackL() - Encryption Header: Encryption supported %d", encryptionHeader.iEncrypted);
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		__LOG1("CSBECompressAndEncrypt::PackL() - Encryption Header: BufferSize %d", encryptionHeader.iBufferSize);
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		__LOG1("CSBECompressAndEncrypt::PackL() - Encryption Header: Total Size %d",encryptionHeader.iTotalSize);
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		// Move along
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		TPtr8 encryptionOffset(const_cast<TUint8*>(iActualStart.Ptr()), 0, sizeof(TEncryptionHeader));
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		iActualStart.SetLength(sizeof(TEncryptionHeader));
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		// Add the encryption buffer
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		if (encryptionHeader.iBufferSize > 0)
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			{
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			iActualStart.Append(reinterpret_cast<TUint8*>(const_cast<TUint16*>(iBuffer.Ptr())), iBuffer.Size());
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			} // if
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		// Temp buffers used for compression & encryption
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		HBufC8* compressionBuffer = HBufC8::NewLC(KCompressionBlockSize + iCompressionGrowthSize);
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		HBufC8* encryptionBuffer = NULL;
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		if (iDoEncrypt)
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			{
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			encryptionBuffer = HBufC8::NewLC(KCompressionBlockSize + iCompressionGrowthSize);
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			} // if
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		// Do compression and encryption
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		TInt location = 0;
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		while (location < iOffsetStart->Size())
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			{
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			// Size of data to compress
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			TInt toCompressSize = KCompressionBlockSize; 
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			if ((iOffsetStart->Size() - location) < KCompressionBlockSize)
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				{
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				toCompressSize = iOffsetStart->Size() - location;
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				}
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			// Compress the data
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			TPtr8 toCompress((const_cast<TUint8*>(iOffsetStart->Ptr()) + location), toCompressSize, toCompressSize);
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			TPtr8 compress = compressionBuffer->Des();
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			CEZCompressor::CompressL(compress, toCompress, Z_BEST_COMPRESSION);
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			// Add the header information
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			TCompressionHeader compressionHeader;
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			compressionHeader.iCompressedSize = compressionBuffer->Size();
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			compressionHeader.iUncompressedSize = toCompressSize;
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			__LOG1("CSBECompressAndEncrypt::PackL() - Compression Header: Compressed %d", compressionHeader.iCompressedSize);
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			__LOG1("CSBECompressAndEncrypt::PackL() - Compression Header: UnCompressed %d", compressionHeader.iUncompressedSize);
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			if (iDoEncrypt)
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				{
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				encryptionBuffer->Des().Append(reinterpret_cast<TUint8*>(&compressionHeader), sizeof(TCompressionHeader));
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				encryptionBuffer->Des().Append(compressionBuffer->Des());
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				iCipher->Process(encryptionBuffer->Des(), iActualStart);
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				} // if
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			else
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				{
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				iActualStart.Append(reinterpret_cast<TUint8*>(&compressionHeader), sizeof(TCompressionHeader));
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				iActualStart.Append(compressionBuffer->Des());
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				} // else
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			if (encryptionBuffer)
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				{
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				encryptionBuffer->Des().SetLength(0);
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				}
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			compressionBuffer->Des().SetLength(0);
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			location += toCompressSize;
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			encryptionHeader.iTotalSize += sizeof(TCompressionHeader) + compressionHeader.iCompressedSize;
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			} // while
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		// Add the encryption buffer
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		WriteL(encryptionHeader, encryptionOffset, 0, sizeof(TEncryptionHeader));
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		// Cleanup
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		if (encryptionBuffer)
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			{
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			CleanupStack::PopAndDestroy(encryptionBuffer);
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			} // if
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		CleanupStack::PopAndDestroy(compressionBuffer);
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		aOutputData.Set(iActualStart);
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		iIsFreed = ETrue;
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#endif		
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		__LOG("CSBECompressAndEncrypt::PackL() - END");
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		}
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	void CSBECompressAndEncrypt::FreeReservedSpace(TPtr8& aOutputData)
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		/*
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		Free space researved in ConstructL if no data to be compressed.
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		@param aOutputData the compressed data
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		*/
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		{
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		__LOG("CSBECompressAndEncrypt::FreeReservedSpace() - START");
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#ifndef TURN_OFF_COMPRESSION_AND_ENCRYPTION	
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		__LOG1("CSBECompressAndEncrypt::FreeReservedSpace() aOutputData.Length(): %d", aOutputData.Length());
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		aOutputData.Set(iActualStart);
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		iIsFreed = ETrue;
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#endif
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		__LOG("CSBECompressAndEncrypt::FreeReservedSpace() - END");		
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		}
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	CSBEDecompressAndEncrypt* CSBEDecompressAndEncrypt::NewL()
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	/** Standard Symbian constructor
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	*/
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		{
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		CSBEDecompressAndEncrypt* self = CSBEDecompressAndEncrypt::NewLC();
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		CleanupStack::Pop(self);
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   321
		
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		return self;
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		}
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	CSBEDecompressAndEncrypt* CSBEDecompressAndEncrypt::NewLC()
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	/** Standard Symbian constructor
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	*/
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parents:
diff changeset
   328
		{
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parents:
diff changeset
   329
		CSBEDecompressAndEncrypt* self = new(ELeave) CSBEDecompressAndEncrypt();
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parents:
diff changeset
   330
		CleanupStack::PushL(self);
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parents:
diff changeset
   331
		
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parents:
diff changeset
   332
		return self;
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parents:
diff changeset
   333
		}
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parents:
diff changeset
   334
		
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parents:
diff changeset
   335
	CSBEDecompressAndEncrypt::CSBEDecompressAndEncrypt() :
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parents:
diff changeset
   336
		iType(ENotSet), iCurrentPtr(NULL, 0), iCount(0), iJavaHash(NULL), iCipher(NULL)
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parents:
diff changeset
   337
		/** Stanard C++ Constructor
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parents:
diff changeset
   338
		*/
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parents:
diff changeset
   339
		{
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parents:
diff changeset
   340
		Reset();
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parents:
diff changeset
   341
		}
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   342
		
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   343
	CSBEDecompressAndEncrypt::~CSBEDecompressAndEncrypt()
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   344
	/** Standard C++ Destructor 
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   345
	*/
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   346
		{
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parents:
diff changeset
   347
		delete iCipher;
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   348
		delete iJavaHash;
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   349
		delete iBuffer;
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   350
		}
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   351
		
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   352
	void CSBEDecompressAndEncrypt::SetBuffer(TDesC8& aOutputData)
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   353
		{
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   354
		iCurrentPtr.Set(const_cast<TUint8*>(aOutputData.Ptr()), aOutputData.Size(), aOutputData.Size());
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parents:
diff changeset
   355
		}
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   356
		
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   357
	void CSBEDecompressAndEncrypt::SetGenericTransferTypeL(CSBGenericTransferType*& apTransferType)
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   358
		{
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   359
		__LOG("CSBEDecompressAndEncrypt::SetGenericTransferTypeL() - START");
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   360
#ifndef TURN_OFF_COMPRESSION_AND_ENCRYPTION
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   361
		TSBDerivedType derivedType = apTransferType->DerivedTypeL();
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   362
		if (derivedType == ESIDTransferDerivedType)
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   363
			{
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   364
			// Need the Sid transfertype
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   365
			CSBSIDTransferType* pSIDTransferType = CSBSIDTransferType::NewL(apTransferType);
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   366
			CleanupStack::PushL(pSIDTransferType);
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   367
			
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   368
			// Do we need to perform a reset
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   369
			if ((iType != ESid) ||
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   370
				(iDriveNumber != pSIDTransferType->DriveNumberL()) ||
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   371
			    (iSecureId != pSIDTransferType->SecureIdL()))
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   372
				{
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   373
				Reset();
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   374
				
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   375
				iDriveNumber = pSIDTransferType->DriveNumberL();
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   376
				iSecureId = pSIDTransferType->SecureIdL();
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   377
				__LOG1("CSBEDecompressAndEncrypt::SetGenericTransferTypeL() - SecureId ID 0x%08x", iSecureId.iId);
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   378
				iType = ESid;
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   379
				} // if
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   380
				CleanupStack::PopAndDestroy(pSIDTransferType);
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   381
			} // if
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   382
		else if (derivedType == EJavaTransferDerivedType)
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   383
			{
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   384
	 		// Java
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   385
			CSBJavaTransferType* pJavaTransferType = CSBJavaTransferType::NewL(apTransferType);
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   386
			CleanupStack::PushL(pJavaTransferType);
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   387
			
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   388
			// Do we need to perform a reset
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   389
			const TDesC& javahash = pJavaTransferType->SuiteHashL();
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   390
			__LOG1("CSBEDecompressAndEncrypt::SetGenericTransferTypeL() - JavaHash %S", &javahash);
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   391
			if ((iType != EJava) ||
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   392
			    (iDriveNumber != pJavaTransferType->DriveNumberL()) ||
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   393
			    (iJavaHash->Des() != javahash))
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   394
				{
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   395
				Reset();
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   396
				
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   397
		 		// Store java hash
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   398
		 		delete iJavaHash;
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   399
		 		iJavaHash = NULL;
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   400
		 		iJavaHash = HBufC::NewL(javahash.Size());
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   401
		 		iJavaHash->Des().Append(javahash);
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   402
		 		
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   403
		 		iSecureId.iId = KJavaVirtualMachineSecureId;
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   404
		 		iDriveNumber = apTransferType->DriveNumberL();
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   405
		 		iType = EJava;
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   406
				}
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   407
	 		
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   408
	 		CleanupStack::PopAndDestroy(pJavaTransferType);
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   409
			} // else if
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   410
		else if (derivedType == EPackageTransferDerivedType)
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   411
			{
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   412
			// Package
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   413
			CSBPackageTransferType* pPackageTransferType = CSBPackageTransferType::NewL(apTransferType);
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   414
			CleanupStack::PushL(pPackageTransferType);
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   415
			
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   416
			// Do we need to perform a reset
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   417
			if ((iType != EPackage) ||
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   418
			    (iPackageId != pPackageTransferType->PackageIdL()))
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   419
				{
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   420
				Reset();
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   421
				iPackageId = pPackageTransferType->PackageIdL();
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   422
				__LOG1("CSBEDecompressAndEncrypt::SetGenericTransferTypeL() - Package ID 0x%08x", iPackageId.iUid);
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   423
				iType = EPackage;
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   424
				}
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   425
				
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   426
			CleanupStack::PopAndDestroy(pPackageTransferType);
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   427
			} // else if
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   428
		else
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   429
			{
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   430
			__LOG("CSBEDecompressAndEncrypt::SetGenericTransferTypeL() - DerivedType not supported");
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   431
			User::Leave(KErrNotSupported);
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   432
			} // else
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   433
#endif
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   434
		__LOG("CSBEDecompressAndEncrypt::SetGenericTransferTypeL() - END");
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   435
		}
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   436
		
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   437
	void CSBEDecompressAndEncrypt::Reset()
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   438
	/** Resets the data 
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   439
	*/
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   440
		{
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   441
		__LOG("CSBEDecompressAndEncrypt::Reset()");
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   442
		iCount = 0;
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   443
		iType = ENotSet;
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   444
		iDoDecrypt = EFalse;
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   445
		iCurrentPtr.Set(NULL, 0, 0);
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   446
		iGotCompressionHeader = EFalse;
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   447
		iCompressionSizeRead = 0;
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   448
		iEncryptionSizeRead = 0;
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   449
		iDoneDecompression = EFalse;
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   450
		iGotCipher = EFalse;
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   451
		delete iBuffer;
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   452
  		iBuffer = NULL;
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   453
		}
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   454
		
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   455
	void CSBEDecompressAndEncrypt::MoveAlongL(TPtr8& aPtr, TInt aAmount)
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   456
	/** Move a pointer along a given amount
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   457
	
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   458
	@param aPtr pointer to move
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   459
	@param aAmount amount to move
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   460
	*/
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   461
		{
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   462
		TInt newSize = aPtr.Size() - aAmount;
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   463
		// Check
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   464
		if (newSize < 0)
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   465
			{
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   466
			__LOG("CSBEDecompressAndEncrypt::MoveAlong() - Overflow");
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   467
			User::Leave(KErrOverflow);
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   468
			}
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   469
		
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   470
		aPtr.Set(const_cast<TUint8*>(aPtr.Ptr()) + aAmount, newSize, newSize);			
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   471
		}
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   472
	
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   473
	TBool CSBEDecompressAndEncrypt::NextLC(HBufC8*& apOutput, TBool& aMoreData)
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   474
	/** Decompress a block of the data
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   475
	
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   476
	@param apOutput on return the next block of uncompressed data. This must be deleted by the caller.
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   477
	@param aMoreData is there more data left in the compressed block.
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   478
	*/
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   479
		{
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   480
		__LOG("CSBEDecompressAndEncrypt::NextLC() - START");
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   481
#ifndef TURN_OFF_COMPRESSION_AND_ENCRYPTION
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   482
		if (!iGotCipher)
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   483
			{
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   484
			iGotCipher = CreateCipherL();
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   485
			if (!iGotCipher)
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   486
				{
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   487
				return EFalse;
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   488
				} // if
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   489
			}
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   490
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   491
		if (!iGotCompressionHeader)
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   492
			{
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   493
			__LOG("CSBEDecompressAndEncrypt::NextLC - No Header read yet");
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   494
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   495
			// Determine how much data we need to read to complete the header
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   496
			TInt dataAvail = iCurrentPtr.Size();
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   497
			if (iCompressionSizeRead + dataAvail > sizeof(TCompressionHeader))
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   498
				{
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   499
				dataAvail = sizeof(TCompressionHeader) - iCompressionSizeRead;
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   500
				}
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   501
			
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   502
			// Read data into header
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   503
			ReadL(iCompressionHeader, iCurrentPtr, iCompressionSizeRead, dataAvail);
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   504
			MoveAlongL(iCurrentPtr, dataAvail);
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   505
			iCompressionSizeRead += dataAvail;
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   506
			iCount += dataAvail;
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   507
			
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   508
			if (iCompressionSizeRead < sizeof(TCompressionHeader))
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   509
				{
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   510
				__LOG1("CSBEDecompressAndEncrypt::NextLC - Got partial compression header (%d bytes)",iCompressionSizeRead );
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   511
				return EFalse;
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   512
				}
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   513
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   514
			__LOG2("CSBEDecompressAndEncrypt::NextLC - Got compression header (compressed size=%d, uncompressed=%d)", 
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   515
				iCompressionHeader.iCompressedSize, iCompressionHeader.iUncompressedSize);
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   516
			
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   517
			// Was the header encrypted?
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   518
			if (iEncryptionHeader.iEncrypted)
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   519
				{
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   520
				__LOG("CSBEDecompressAndEncrypt::NextLC - Header Encrypted!");
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   521
				TCompressionHeader compressionHeader;
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   522
				TPtr8 inData(reinterpret_cast<TUint8*>(&iCompressionHeader), sizeof(TCompressionHeader), sizeof(TCompressionHeader));
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   523
				TPtr8 outData(reinterpret_cast<TUint8*>(&compressionHeader), 0, sizeof(TCompressionHeader));
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   524
				
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   525
				iCipher->Process(inData, outData);
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   526
				iCompressionHeader = compressionHeader;
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   527
				__LOG2("CSBEDecompressAndEncrypt::NextLC - unencrypted header, compressed size %d, uncompressed %d", iCompressionHeader.iCompressedSize, iCompressionHeader.iUncompressedSize);
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   528
				}
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   529
				
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   530
			iCompressionSizeRead = 0;
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   531
			iGotCompressionHeader = ETrue;
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   532
			} // if
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   533
			
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   534
		// Check the compression header is sensible
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   535
		if ((iCompressionHeader.iCompressedSize < 0) ||
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   536
			(iCompressionHeader.iUncompressedSize < 0) || 
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   537
			(iCompressionHeader.iCompressedSize >= KMaxHeapSize) ||
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   538
			(iCompressionHeader.iUncompressedSize >= KMaxHeapSize))
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   539
			{
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   540
			__LOG("CSBEDecompressAndEncrypt::NextLC() - Compression header is corrupt");
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   541
			User::Leave(KErrCorrupt);
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   542
			}
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   543
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   544
		if (!iDoneDecompression)
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   545
			{
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   546
			// Do we have enough data to decompress?
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   547
			TInt dataSize = iCurrentPtr.Size();
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   548
			__LOG1("CSBEDecompressAndEncrypt::NextLC() - Doing Decompression - data size %d", dataSize);
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   549
			if (iBuffer != NULL)
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   550
				{
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   551
				dataSize += iBuffer->Size();
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   552
				__LOG1("CSBEDecompressAndEncrypt::NextLC() - iBuffer not NULL new data size %d", dataSize)
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   553
				}
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   554
			if (dataSize < iCompressionHeader.iCompressedSize)
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   555
				{
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   556
				__LOG("CSBEDecompressAndEncrypt::NextLC() - data size < compressed size");
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   557
				// Need to buffer the buffer
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   558
				if (iBuffer == NULL)
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   559
  					{
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   560
  					__LOG1("CSBEDecompressAndEncrypt::NextLC() - Creating internal buffer of size %d",iCompressionHeader.iCompressedSize);
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   561
  					iBuffer = HBufC8::NewL(iCompressionHeader.iCompressedSize);	
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   562
  					}
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   563
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   564
				iBuffer->Des().Append(const_cast<TUint8*>(iCurrentPtr.Ptr()), iCurrentPtr.Size());
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   565
				__LOG("CSBEDecompressAndEncrypt::NextLC() - Appending data to internal buffer");
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   566
				return EFalse;
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   567
				} // if
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   568
				
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   569
			// Do we have a buffer?
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   570
			TPtr8 inData(NULL, 0);
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   571
			TInt toAppend = 0;
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   572
			if (iBuffer != NULL)
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   573
				{
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   574
				__LOG("CSBEDecompressAndEncrypt::NextLC() - Preparing inData from internal buffer");
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   575
				toAppend = iCompressionHeader.iCompressedSize - iBuffer->Des().Size();
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   576
				iBuffer->Des().Append(const_cast<TUint8*>(iCurrentPtr.Ptr()), toAppend);
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   577
				
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   578
				inData.Set(const_cast<TUint8*>(iBuffer->Des().Ptr()), iBuffer->Des().Size(), iBuffer->Des().Size());
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   579
				} // if
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   580
			else
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   581
				{
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   582
				__LOG("CSBEDecompressAndEncrypt::NextLC() - Preparing inData");
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   583
				inData.Set(const_cast<TUint8*>(iCurrentPtr.Ptr()), iCompressionHeader.iCompressedSize, iCompressionHeader.iCompressedSize);			
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   584
				} // else
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   585
				
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   586
			// Uncompress + Decrypt the buffer
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   587
			apOutput = HBufC8::NewLC(iCompressionHeader.iUncompressedSize);
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   588
			__LOG1("CSBEDecompressAndEncrypt::NextLC() - Allocated Output data for uncompressed data of size %d", iCompressionHeader.iUncompressedSize);
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   589
			if (iEncryptionHeader.iEncrypted)
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   590
				{
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   591
				__LOG("CSBEDecompressAndEncrypt::NextLC() Encrypted data, trying to allocate temp");
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   592
				// Need another temp buffer
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   593
				HBufC8* temp = HBufC8::NewLC(iCompressionHeader.iCompressedSize);
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   594
				
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   595
				// Decrypt
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   596
				TPtr8 ptrTemp = temp->Des();
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   597
				iCipher->Process(inData, ptrTemp);
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   598
				// Decompress
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   599
				TPtr8 ptrOutput = apOutput->Des();
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   600
				CEZDecompressor::DecompressL(ptrOutput, ptrTemp);
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   601
				
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   602
				// Cleanup
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   603
				CleanupStack::PopAndDestroy(temp);
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   604
				__LOG("CSBEDecompressAndEncrypt::NextLC() Decryption and decompresson done");
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   605
				} // if
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   606
			else
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   607
				{
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   608
				// Decompress
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   609
				TPtr8 ptrOutput = apOutput->Des();
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   610
				CEZDecompressor::DecompressL(ptrOutput, inData);
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   611
				__LOG("CSBEDecompressAndEncrypt::NextLC() decompresson done");
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   612
				} // else
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   613
				
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   614
			iCount += iCompressionHeader.iCompressedSize;
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   615
			if (toAppend != 0)
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   616
				{
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   617
				MoveAlongL(iCurrentPtr, toAppend);
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   618
				}
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   619
			else
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   620
				{
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   621
				MoveAlongL(iCurrentPtr, iCompressionHeader.iCompressedSize);
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   622
				}
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   623
			
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   624
			delete iBuffer;
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   625
			iBuffer = NULL;
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   626
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   627
			iDoneDecompression = ETrue;
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   628
			} // if
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   629
		
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   630
		__LOG2("CSBEDecompressAndEncrypt::NextLC() - encryption buffer done %d of %d", iCount, iEncryptionHeader.iTotalSize);
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   631
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   632
		// If the entire encrypted block has been read, prepare to read the next one
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   633
		if (iCount >= iEncryptionHeader.iTotalSize)
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   634
			{
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   635
			iGotCipher = EFalse;
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   636
			iEncryptionSizeRead = 0;
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   637
			iCount = 0;
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   638
			}
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   639
		
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   640
		// Is there more data available?
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   641
		if (iCurrentPtr.Size() == 0)
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   642
			{
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   643
			Reset();
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   644
			aMoreData = EFalse;
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   645
			}
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   646
		else
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   647
			{
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   648
			aMoreData = ETrue;
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   649
			}
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   650
			
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   651
		// Prepare to read the next compressed block
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   652
		iGotCompressionHeader = EFalse;
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   653
		iCompressionSizeRead = 0;
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   654
		iDoneDecompression = EFalse;
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   655
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   656
#else
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   657
		TInt size = g_CompressionBlockSize;
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   658
		if (size > iCurrentPtr.Size())
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   659
			{
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   660
			size = iCurrentPtr.Size();
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   661
			} // if
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   662
			
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   663
		apOutput = HBufC8::NewLC(size);
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   664
		apOutput->Des().Append(iCurrentPtr.Ptr(), size);
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   665
		MoveAlong(iCurrentPtr, size);
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   666
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   667
		// Is there more data available?
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   668
		if (iCurrentPtr.Size() == 0)
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   669
			{
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   670
			aMoreData = EFalse;
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   671
			}
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   672
		else
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   673
			{
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   674
			aMoreData = ETrue;
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   675
			}
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   676
#endif			
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   677
		__LOG("CSBEDecompressAndEncrypt::NextLC() - END");
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   678
		return ETrue;
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   679
		}
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   680
		
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   681
	TBool CSBEDecompressAndEncrypt::CreateCipherL()
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   682
	/**
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   683
	Creates the cipher to to use in decryption.
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   684
	
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   685
	@return ETrue if cipher created, otherwise EFalse.
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   686
	*/
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   687
		{
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   688
		__LOG("CSBEDecompressAndEncrypt::CreateCipherL() - START");
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   689
		
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   690
		TInt dataAvail = iCurrentPtr.Size();
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   691
		if (iEncryptionSizeRead + dataAvail > sizeof(TEncryptionHeader))
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   692
			{
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   693
			dataAvail = sizeof(TEncryptionHeader) - iEncryptionSizeRead;
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   694
			}
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   695
		
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   696
		// Read data into header
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   697
		ReadL(iEncryptionHeader, iCurrentPtr, iEncryptionSizeRead, dataAvail);
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   698
		MoveAlongL(iCurrentPtr, dataAvail);
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   699
		iEncryptionSizeRead += dataAvail;
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   700
		iCount += dataAvail;
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   701
		
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   702
		if (iEncryptionSizeRead < sizeof(TEncryptionHeader))
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   703
			{
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   704
			__LOG1("CSBEDecompressAndEncrypt::CreateCipherL - Got partial encryption header (%d bytes)",iEncryptionSizeRead);
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   705
			return EFalse;
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   706
			}
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   707
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   708
		__LOG3("CSBEDecompressAndEncrypt::CreateCipherL - Got encryption header (encrypted=%d, buffer size=%d, total size=%d)", 
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   709
			iEncryptionHeader.iEncrypted, iEncryptionHeader.iBufferSize, iEncryptionHeader.iTotalSize);
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   710
		
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   711
		// Check we have a sensible encryption header
31
a26669f87b46 201027_03
hgs
parents: 0
diff changeset
   712
		if ((iEncryptionHeader.iBufferSize < 0) || (iEncryptionHeader.iBufferSize >= KMaxTInt/2) ||
0
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   713
			(iEncryptionHeader.iTotalSize < 0))
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   714
			{
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   715
			__LOG("CSBEDecompressAndEncrypt::CreateCipherL() - Corrupt data");
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   716
			User::Leave(KErrCorrupt);
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   717
			}
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   718
		if (iEncryptionHeader.iEncrypted)
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   719
			{
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   720
			// Get the decryption key
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   721
			CSecureBUREncryptKeySource* keySource = CSecureBUREncryptKeySource::NewL();
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   722
			CleanupStack::PushL(keySource);
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   723
				
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   724
			HBufC* alignedBuffer = HBufC::NewLC(iEncryptionHeader.iBufferSize);
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   725
			TBool gotBuffer = (iEncryptionHeader.iBufferSize > 0);
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   726
			if (gotBuffer)
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   727
				{
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   728
				TUint8* in = reinterpret_cast<TUint8*>(const_cast<TUint16*>(alignedBuffer->Des().Ptr()));
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   729
				TUint8* out = const_cast<TUint8*>(iCurrentPtr.Ptr());
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   730
				
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   731
				for (TInt x = 0; x < iEncryptionHeader.iBufferSize; x++)
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   732
					{
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   733
					in[x] = out[x];
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   734
					} // for x
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   735
				alignedBuffer->Des().SetLength(iEncryptionHeader.iBufferSize / KCharWidthInBytes);
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   736
				}
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   737
			
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   738
			TBuf8<KKeySize> key;
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   739
			TBool gotKey = EFalse;
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   740
			TPtr16 ptrAlignedBuffer(alignedBuffer->Des());
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   741
			keySource->GetRestoreKeyL(iDriveNumber, iSecureId, gotBuffer, ptrAlignedBuffer, gotKey, key);
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   742
			if (!gotKey)
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   743
				{
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   744
				User::Leave(KErrCorrupt);
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   745
				}
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   746
				
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   747
		 	// Create the cipher
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   748
		 	if (iCipher)
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   749
		 		{
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   750
		 		delete iCipher;
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   751
		 		iCipher = NULL;
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   752
		 		}
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   753
		 	iCipher = CARC4::NewL(key);
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   754
				
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   755
			// Cleanup
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   756
			CleanupStack::PopAndDestroy(alignedBuffer);
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   757
			CleanupStack::PopAndDestroy(keySource);				
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   758
			} // if
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   759
			
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   760
		// Set iCount
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   761
		iCount += iEncryptionHeader.iBufferSize;
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   762
		// Move current pointer along
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   763
		MoveAlongL(iCurrentPtr, iEncryptionHeader.iBufferSize);
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   764
		__LOG("CSBEDecompressAndEncrypt::CreateCipherL() - END");
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   765
		return ETrue;
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   766
		}
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   767
		
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   768
	}
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   769
d0791faffa3f Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   770