sl@0: /*
sl@0: * Copyright (c) 2007-2009 Nokia Corporation and/or its subsidiary(-ies).
sl@0: * All rights reserved.
sl@0: * This component and the accompanying materials are made available
sl@0: * under the terms of the License "Eclipse Public License v1.0"
sl@0: * which accompanies this distribution, and is available
sl@0: * at the URL "http://www.eclipse.org/legal/epl-v10.html".
sl@0: *
sl@0: * Initial Contributors:
sl@0: * Nokia Corporation - initial contribution.
sl@0: *
sl@0: * Contributors:
sl@0: *
sl@0: * Description: 
sl@0: *
sl@0: */
sl@0: 
sl@0: 
sl@0: /**
sl@0:  @file
sl@0:  @internalComponent
sl@0:  @released
sl@0: */
sl@0: #include <e32std.h>
sl@0: #include <e32debug.h>
sl@0: 
sl@0: #include "randomimpl.h"
sl@0: #include "pluginentry.h"
sl@0: #include "pluginconfig.h"
sl@0: 
sl@0: using namespace HwCrypto;
sl@0: 
sl@0: _LIT(KLddFileName,"cryptoldd.ldd");
sl@0: _LIT(KPddFileName,"crypto.h4.pdd");
sl@0: 
sl@0: 
sl@0: CRandomImpl* CRandomImpl::NewL()
sl@0: 	{
sl@0: 	CRandomImpl* self = NewLC();
sl@0: 	CleanupStack::Pop(self);
sl@0: 	return self;
sl@0: 	}
sl@0: 
sl@0: CRandomImpl* CRandomImpl::NewLC()
sl@0: 	{
sl@0: 	CRandomImpl* self = new(ELeave)CRandomImpl();
sl@0: 	CleanupStack::PushL(self);
sl@0: 	self->ConstructL();
sl@0: 	return self;
sl@0: 	}
sl@0: 
sl@0: void CRandomImpl::ConstructL()
sl@0: 	{
sl@0: 	//	RDebug::Printf("CRandomImpl::ConstructL");
sl@0: 	// Load PDD
sl@0:     TInt r = User::LoadPhysicalDevice(KPddFileName);
sl@0: 	if((r != KErrNone) && (r != KErrAlreadyExists)) User::Leave(r);
sl@0: 
sl@0: 	// Load LDD
sl@0:     r = User::LoadLogicalDevice(KLddFileName);
sl@0: 	if((r != KErrNone) && (r != KErrAlreadyExists)) User::Leave(r);
sl@0: 
sl@0: 	// Open driver handle
sl@0: 	User::LeaveIfError(iCryptoDriver.Open());
sl@0: 	}
sl@0: 
sl@0: 
sl@0: void CRandomImpl::GenerateRandomBytesL(TDes8& aDest)
sl@0: 	{
sl@0:     TRequestStatus status;
sl@0: 	iCryptoDriver.Random(status, aDest);
sl@0: 	User::WaitForRequest(status);
sl@0: 	User::LeaveIfError(status.Int());
sl@0: 	}
sl@0: 
sl@0: CRandomImpl::CRandomImpl()
sl@0: 	{
sl@0: 	}
sl@0: 
sl@0: 
sl@0: const CExtendedCharacteristics* CRandomImpl::GetExtendedCharacteristicsL()
sl@0: 	{
sl@0: 	return StaticGetExtendedCharacteristicsL();
sl@0: 	}
sl@0: 
sl@0: CExtendedCharacteristics* CRandomImpl::StaticGetExtendedCharacteristicsL()
sl@0: 	{
sl@0: 	// All Symbian software plug-ins have unlimited concurrency, cannot be reserved
sl@0: 	// for exclusive use and are not CERTIFIED to be standards compliant.
sl@0: 	return CExtendedCharacteristics::NewL(KMaxTInt, EFalse);
sl@0: 	}
sl@0: 
sl@0: void CRandomImpl::GetCharacteristicsL(const TCharacteristics*& aPluginCharacteristics)
sl@0: 	{
sl@0: 	TInt randomNum = sizeof(KRandomCharacteristics)/sizeof(TRandomCharacteristics*);
sl@0: 	for (TInt i = 0; i < randomNum; i++)
sl@0: 		{
sl@0: 		if (KRandomCharacteristics[i]->cmn.iImplementationUID == ImplementationUid().iUid)
sl@0: 			{
sl@0: 			aPluginCharacteristics = KRandomCharacteristics[i];
sl@0: 			break;
sl@0: 			}
sl@0: 		}
sl@0: 	}
sl@0: 	
sl@0: TAny* CRandomImpl::GetExtension(TUid /*aExtensionId*/)
sl@0: 	{
sl@0: 	return NULL;
sl@0: 	}
sl@0: 
sl@0: TUid CRandomImpl::ImplementationUid() const
sl@0: 	{
sl@0: 	return KCryptoPluginRandomUid;
sl@0: 	}
sl@0: 
sl@0: CRandomImpl::~CRandomImpl()
sl@0: 	{
sl@0: 	iCryptoDriver.Close();
sl@0: 	//	RDebug::Printf("CRandomImpl::~CRandomImpl");
sl@0: 	}
sl@0: 
sl@0: void CRandomImpl::Close()
sl@0: 	{
sl@0: 	delete this;
sl@0: 	}
sl@0: 
sl@0: // All crypto plugins must implement this, to reset
sl@0: // hardware if required. Do nothing in this version
sl@0: void CRandomImpl::Reset()
sl@0: 	{
sl@0: 	}
sl@0: 
sl@0: // End of file