/*

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of the License "Eclipse Public License v1.0"

* which accompanies this distribution, and is available

* at the URL "http://www.eclipse.org/legal/epl-v10.html".

*

* Initial Contributors:

* Nokia Corporation - initial contribution.

*

* Contributors:

*

* Description: 

* legacy plugin selector implementation

* Legacy plugin selector implementation

*

*/

/**

 @file

*/

#include "legacyselector.h"

#include <cryptospi/plugincharacteristics.h>

#include <cryptospi/cryptocharacteristics.h>

#include "cryptospiproperty.h"

#include <cryptospi/hashplugin.h>

#include <cryptospi/randomplugin.h>

#include <cryptospi/cryptohashapi.h>

#include <cryptospi/cryptorandomapi.h>

#include <cryptospi/pluginentrydef.h>

#include "cryptospiutil.h"

#ifdef SYMBIAN_SDP_IPSEC_VOIP_SUPPORT

	#include <cryptospi/macplugin.h>

	#include <cryptospi/cryptomacapi.h>

#endif

using namespace CryptoSpi;

CLegacySelector* CLegacySelector::NewL()

	{

	CLegacySelector* self=CLegacySelector::NewLC();

	CleanupStack::Pop(self);

	return self;		

	}

CLegacySelector* CLegacySelector::NewLC()

	{

	CLegacySelector* self=new(ELeave) CLegacySelector();

	CleanupStack::PushL(self);

	return self;

	}

CLegacySelector::CLegacySelector()

	{

	}

CLegacySelector::~CLegacySelector()

	{

	iCharacteristicsAndDllIndex.ResetAndDestroy();	

	}

void CLegacySelector::CreateHashL(CHash*& aHash,

									TUid aAlgorithmUid,

									TUid aOperationMode,

									const CKey* aKey,

									const CCryptoParams* aAlgorithmParams)

	{

	CryptoSpiUtil::RetrieveCharacteristicsL(KHashInterface, iCharacteristicsAndDllIndex);

	TInt found=KErrNone;

	TInt ret=KErrNone;

	do 

		{

		TUid implUid={0};

		TFileName fileName;

		found=FindPlugin(aAlgorithmUid, implUid, fileName);

		if (found==KErrNone)

			{

			//Load the dll and make the handle be sharable in the process

			RLibrary sharedLib;

			CryptoSpiUtil::LoadPluginDllLC(sharedLib, fileName);

			//look for the entry point

			CreateHashFuncL func=(CreateHashFuncL)sharedLib.Lookup(ECreateHashOrdinal);

			if (func)

				{

				//create the plugin

				MHash* hashPlugin=NULL;

				TRAP(ret, (func)(hashPlugin, implUid, aOperationMode, aKey, aAlgorithmParams))

				if (ret!=KErrNone)

					{

					if (ret==KErrNoMemory)

						{

						User::Leave(ret);	

						}

					CleanupStack::PopAndDestroy(&sharedLib); //sharedLib

					}

				else

					{

					CleanupClosePushL(*hashPlugin);

					aHash=CHash::NewL(hashPlugin, sharedLib.Handle());

					CleanupStack::Pop(2, &sharedLib); //hashPlugin, sharedLib

					break;

					}					

				}

			else

				{

				CleanupStack::PopAndDestroy(&sharedLib); //sharedLib

				}

			}

		}

	while (found!=KErrNotFound);

	User::LeaveIfError(ret);

	if (found!=KErrNone)

		{

		User::Leave(KErrNotSupported);

		}

	}

#ifdef SYMBIAN_SDP_IPSEC_VOIP_SUPPORT	

void CLegacySelector::CreateHashL(CHash*& aHash,

									TUid aAlgorithmUid,

									const CCryptoParams* aAlgorithmParams)

	{

	CryptoSpiUtil::RetrieveCharacteristicsL(KHashInterface, iCharacteristicsAndDllIndex);

	TInt found=KErrNone;

	TInt ret=KErrNone;

	do 

		{

		TUid implUid={0};

		TFileName fileName;

		found=FindPlugin(aAlgorithmUid, implUid, fileName);

		if (found==KErrNone)

			{

			//Load the dll and make the handle be sharable in the process

			RLibrary sharedLib;

			CryptoSpiUtil::LoadPluginDllLC(sharedLib, fileName);

			//look for the entry point

			CreateHashFuncLv2 func=(CreateHashFuncLv2)sharedLib.Lookup(ECreateHashOrdinalv2);

			if (func)

				{

				//create the plugin

				MHash* hashPlugin=NULL;

				TRAP(ret, (func)(hashPlugin, implUid, aAlgorithmParams))

				if (ret!=KErrNone)

					{

					if (ret==KErrNoMemory)

						{

						User::Leave(ret);	

						}

					CleanupStack::PopAndDestroy(&sharedLib); //sharedLib

					}

				else

					{

					CleanupClosePushL(*hashPlugin);

					aHash=CHash::NewL(hashPlugin, sharedLib.Handle());

					CleanupStack::Pop(2, &sharedLib); //hashPlugin, sharedLib

					break;

					}					

				}

			else

				{

				CleanupStack::PopAndDestroy(&sharedLib); //sharedLib

				}

			}

		}

	while (found!=KErrNotFound);

	User::LeaveIfError(ret);

	if (found!=KErrNone)

		{

		User::Leave(KErrNotSupported);

		}

	}

void CLegacySelector::CreateMacL(CMac*& aMac,

								 TUid aAlgorithmUid,

								 const CKey& aKey,

								 const CCryptoParams* aAlgorithmParams)

	{

	CryptoSpiUtil::RetrieveCharacteristicsL(KMacInterface, iCharacteristicsAndDllIndex);

	TInt found=KErrNone;

	TInt ret=KErrNone;

	do 

		{

		TUid implUid={0};

		TFileName fileName;

		found=FindPlugin(aAlgorithmUid, implUid, fileName);

		if (found==KErrNone)

			{

			//Load the dll and make the handle be sharable in the process

			RLibrary sharedLib;

			CryptoSpiUtil::LoadPluginDllLC(sharedLib, fileName);

			//look for the entry point

			CreateMacFuncL func=(CreateMacFuncL)sharedLib.Lookup(ECreateMacOrdinal);

			if (func)

				{

				//create the plugin

				MMac* macPlugin=NULL;

				TRAP(ret, (func)(macPlugin, implUid, aKey, aAlgorithmParams))

				if (ret!=KErrNone)

					{

					if (ret==KErrNoMemory)

						{

						User::Leave(ret);	

						}

					CleanupStack::PopAndDestroy(&sharedLib); //sharedLib

					}

				else

					{

					CleanupClosePushL(*macPlugin);

					aMac=CMac::NewL(macPlugin, sharedLib.Handle());

					CleanupStack::Pop(2, &sharedLib); //macPlugin, sharedLib

					break;

					}					

				}

			else

				{

				CleanupStack::PopAndDestroy(&sharedLib); //sharedLib

				}

			}

		}

	while (found!=KErrNotFound);

	User::LeaveIfError(ret);

	if (found!=KErrNone)

		{

		User::Leave(KErrNotSupported);

		}

	}

#endif

void CLegacySelector::CreateRandomL(CRandom*& aRandom,

									TUid aAlgorithmUid,

									const CCryptoParams* aAlgorithmParams)

	{

	CryptoSpiUtil::RetrieveCharacteristicsL(KRandomInterface, iCharacteristicsAndDllIndex);

	TInt found=KErrNone;

	TInt ret=KErrNone;

	do 

		{

		TFileName fileName;

		TUid implUid={0};

		found=FindPlugin(aAlgorithmUid, implUid, fileName);

		if (found==KErrNone)

			{

			//Load the dll and make the handle be sharable in the process

			RLibrary sharedLib;

			CryptoSpiUtil::LoadPluginDllLC(sharedLib, fileName);

			//look for the entry point

			CreateRandomFuncL func=(CreateRandomFuncL)sharedLib.Lookup(ECreateRandomOrdinal);

			if (func)

				{

				//create the plugin

				MRandom* randomPlugin=NULL;

				TRAP(ret, (func)(randomPlugin, implUid, aAlgorithmParams))

				if (ret!=KErrNone)

					{

					if (ret==KErrNoMemory)

						{

						User::Leave(ret);	

						}

					CleanupStack::PopAndDestroy(&sharedLib); //sharedLib

					}

				else

					{

					CleanupClosePushL(*randomPlugin);

					aRandom=CRandom::NewL(randomPlugin, sharedLib.Handle());

					CleanupStack::Pop(2, &sharedLib); //randomPlugin, sharedLib

					break;

					}

				}

			else

				{

				CleanupStack::PopAndDestroy(&sharedLib); //sharedLib

				}

			}

		}

	while (found!=KErrNotFound);

	User::LeaveIfError(ret);

	if (found!=KErrNone)

		{

		User::Leave(KErrNotSupported);

		}

	}

void CLegacySelector::CreateSymmetricCipherL(CSymmetricCipher*& aCipher,

											TUid aAlgorithmUid,

											const CKey& aKey,

											TUid aCryptoMode,

											TUid aOperationMode,

											TUid aPaddingMode,

											const CCryptoParams* aAlgorithmParams)

	{

	CryptoSpiUtil::RetrieveCharacteristicsL(KSymmetricCipherInterface, iCharacteristicsAndDllIndex);

	TInt found=KErrNone;

	TInt ret=KErrNone;

	do 

		{

		TFileName fileName;

		TUid implUid={0};

		found=FindPlugin(aAlgorithmUid, implUid, fileName);

		if (found==KErrNone)

			{

			//Load the dll and make the handle be sharable in the process

			RLibrary sharedLib;

			CryptoSpiUtil::LoadPluginDllLC(sharedLib, fileName);

			//look for the entry point

			CreateSymmetricCipherFuncL func=(CreateSymmetricCipherFuncL)sharedLib.Lookup(ECreateSymmetricCipherOrdinal);

			if (func)

				{

				//create the plugin

				MSymmetricCipher* cipherPlugin=NULL;

				TRAP(ret, (func)(cipherPlugin, implUid, aKey, aCryptoMode, aOperationMode, aPaddingMode, aAlgorithmParams))

				if (ret!=KErrNone)

					{

					if (ret==KErrNoMemory)

						{

						User::Leave(ret);	

						}

					CleanupStack::PopAndDestroy(&sharedLib); //sharedLib

					}

				else

					{

					CleanupClosePushL(*cipherPlugin);

					aCipher=CSymmetricCipher::NewL(cipherPlugin, sharedLib.Handle());

					CleanupStack::Pop(2, &sharedLib); //cipherPlugin, sharedLib

					break;

					}

				}

			else

				{

				CleanupStack::PopAndDestroy(&sharedLib); //sharedLib	

				}			

			}

		}

	while (found!=KErrNotFound);

	User::LeaveIfError(ret);

	if (found!=KErrNone)

		{

		User::Leave(KErrNotSupported);

		}

	}

void CLegacySelector::CreateAsymmetricCipherL(CAsymmetricCipher*& aCipher,

												TUid aAlgorithmUid,

												const CKey& aKey,

												TUid aCryptoMode,

												TUid aPaddingMode,									

												const CCryptoParams* aAlgorithmParams)

	{

	CryptoSpiUtil::RetrieveCharacteristicsL(KAsymmetricCipherInterface, iCharacteristicsAndDllIndex);

	TInt found=KErrNone;

	TInt ret=KErrNone;

	do 

		{

		TFileName fileName;

		TUid implUid={0};

		found=FindPlugin(aAlgorithmUid, implUid, fileName);

		if (found==KErrNone)

			{

			//Load the dll and make the handle be sharable in the process

			RLibrary sharedLib;

			CryptoSpiUtil::LoadPluginDllLC(sharedLib, fileName);

			//look for the entry point

			CreateAsymmetricCipherFuncL func=(CreateAsymmetricCipherFuncL)sharedLib.Lookup(ECreateAsymmetricCipherOrdinal);

			if (func)

				{

				//create the plugin

				MAsymmetricCipher* cipherPlugin=NULL;

				TRAP(ret, (func)(cipherPlugin, implUid, aKey, aCryptoMode, aPaddingMode, aAlgorithmParams))

				if (ret!=KErrNone)

					{

					if (ret==KErrNoMemory)

						{

						User::Leave(ret);	

						}

					CleanupStack::PopAndDestroy(&sharedLib); //sharedLib

					}

				else

					{

					CleanupClosePushL(*cipherPlugin);

					aCipher=CAsymmetricCipher::NewL(cipherPlugin, sharedLib.Handle());

					CleanupStack::Pop(2, &sharedLib); //cipherPlugin, sharedLib

					break;

					}

				}

			else

				{

				CleanupStack::PopAndDestroy(&sharedLib); //sharedLib	

				}

			}

		}

	while (found!=KErrNotFound);

	User::LeaveIfError(ret);

	if (found!=KErrNone)

		{

		User::Leave(KErrNotSupported);

		}

	}

void CLegacySelector::CreateSignerL(CSigner*& aSigner,

									TUid aAlgorithmUid,

									const CKey& aKey,

									TUid aPaddingMode,

									const CCryptoParams* aAlgorithmParams)

	{

	CryptoSpiUtil::RetrieveCharacteristicsL(KSignerInterface, iCharacteristicsAndDllIndex);

	TInt found=KErrNone;

	TInt ret=KErrNone;

	do 

		{

		TFileName fileName;

		TUid implUid={0};		

		found=FindPlugin(aAlgorithmUid, implUid, fileName);

		if (found==KErrNone)

			{

			//Load the dll and make the handle be sharable in the process

			RLibrary sharedLib;

			CryptoSpiUtil::LoadPluginDllLC(sharedLib, fileName);

			//look for the entry point

			CreateSignerFuncL func=(CreateSignerFuncL)sharedLib.Lookup(ECreateSignerOrdinal);

			if (func)

				{

				//create the plugin

				MSigner* plugin=NULL;

				TRAP(ret, (func)(plugin, implUid, aKey, aPaddingMode, aAlgorithmParams))

				if (ret!=KErrNone)

					{

					if (ret==KErrNoMemory)

						{

						User::Leave(ret);	

						}

					CleanupStack::PopAndDestroy(&sharedLib); //sharedLib

					}

				else

					{

					CleanupClosePushL(*plugin);

					aSigner=CSigner::NewL(plugin, sharedLib.Handle());

					CleanupStack::Pop(2, &sharedLib); //plugin, sharedLib

					break;

					}					

				}

			else

				{

				CleanupStack::PopAndDestroy(&sharedLib); //sharedLib	

				}

			}

		}

	while (found!=KErrNotFound);

	User::LeaveIfError(ret);

	if (found!=KErrNone)

		{

		User::Leave(KErrNotSupported);

		}

	}

void CLegacySelector::CreateVerifierL(CVerifier*& aVerifier,

										TUid aAlgorithmUid,

										const CKey& aKey,

										TUid aPaddingMode,

										const CCryptoParams* aAlgorithmParams)

	{

	CryptoSpiUtil::RetrieveCharacteristicsL(KVerifierInterface, iCharacteristicsAndDllIndex);

	TInt found=KErrNone;

	TInt ret=KErrNone;

	do 

		{

		TFileName fileName;

		TUid implUid={0};		

		found=FindPlugin(aAlgorithmUid, implUid, fileName);

		if (found==KErrNone)

			{

			//Load the dll and make the handle be sharable in the process

			RLibrary sharedLib;

			CryptoSpiUtil::LoadPluginDllLC(sharedLib, fileName);

			//look for the entry point

			CreateVerifierFuncL func=(CreateVerifierFuncL)sharedLib.Lookup(ECreateVerifierOrdinal);

			if (func)

				{

				//create the plugin

				MVerifier* plugin=NULL;

				TRAP(ret, (func)(plugin, implUid, aKey, aPaddingMode, aAlgorithmParams))

				if (ret!=KErrNone)

					{

					if (ret==KErrNoMemory)

						{

						User::Leave(ret);	

						}

					CleanupStack::PopAndDestroy(&sharedLib); //sharedLib

					}

				else

					{

					CleanupClosePushL(*plugin);

					aVerifier=CVerifier::NewL(plugin, sharedLib.Handle());

					CleanupStack::Pop(2, &sharedLib); //plugin, sharedLib

					break;