/*

* Copyright (c) 2001-2006 Nokia Corporation and/or its subsidiary(-ies).

* All rights reserved.

* This component and the accompanying materials are made available

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

* which accompanies this distribution, and is available

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

*

* Initial Contributors:

* Nokia Corporation - initial contribution.

*

* Contributors:

*

* Description:  EAP and WLAN authentication protocols.

*

*/

// This is enumeration of EAPOL source code.

#if defined(USE_EAP_MINIMUM_RELEASE_TRACES)

	#undef EAP_FILE_NUMBER_ENUM

	#define EAP_FILE_NUMBER_ENUM 195 

	#undef EAP_FILE_NUMBER_DATE 

	#define EAP_FILE_NUMBER_DATE 1127594498 

#endif //#if defined(USE_EAP_MINIMUM_RELEASE_TRACES)

// INCLUDE FILES

#include "EapSimInterface.h"

#include <mmtsy_names.h>

#include "eap_sim_triplets.h" // For SIM_SRES_LENGTH.

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

CEapSimIsaInterface::CEapSimIsaInterface(abs_eap_am_tools_c* const aTools, eap_am_type_gsmsim_symbian_c* const aParent)

: CActive(CActive::EPriorityStandard)

, iParent(aParent)

, m_am_tools(aTools)

, iAuthenticationData(NULL)

, iQueryId(EQueryNone)

, iMMETELConnectionStatus(EFalse)

{

	EAP_TRACE_BEGIN(m_am_tools, TRACE_FLAGS_DEFAULT);

	EAP_TRACE_END(m_am_tools, TRACE_FLAGS_DEFAULT);

}

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

CEapSimIsaInterface* CEapSimIsaInterface::NewL(abs_eap_am_tools_c* const aTools, 

											   eap_am_type_gsmsim_symbian_c* const aParent)

{

	CEapSimIsaInterface* self = new(ELeave) CEapSimIsaInterface(aTools, aParent);

	CleanupStack::PushL(self);

	self->ConstructL();

	CleanupStack::Pop();

	return self;

}

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

void CEapSimIsaInterface::ConstructL()

{

	EAP_TRACE_BEGIN(m_am_tools, TRACE_FLAGS_DEFAULT);

	CActiveScheduler::Add(this);	

	EAP_TRACE_END(m_am_tools, TRACE_FLAGS_DEFAULT);

}

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

CEapSimIsaInterface::~CEapSimIsaInterface()

{

	EAP_TRACE_BEGIN(m_am_tools, TRACE_FLAGS_DEFAULT);

	if(IsActive())

	{

		Cancel();		

	}

	EAP_TRACE_DEBUG(m_am_tools, TRACE_FLAGS_DEFAULT, (EAPL("Closing RMobilePhone and MMETEL.\n")));

	iPhone.Close();

	iServer.Close(); // Phone module is unloaded automatically when RTelServer session is closed

	delete iAuthenticationData;

	iAuthenticationData = NULL;

	EAP_TRACE_END(m_am_tools, TRACE_FLAGS_DEFAULT);

}

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

void CEapSimIsaInterface::QueryIMSIL()

{	

	EAP_TRACE_BEGIN(m_am_tools, TRACE_FLAGS_DEFAULT);

	EAP_TRACE_DEBUG(m_am_tools, TRACE_FLAGS_DEFAULT, (EAPL("ISA interface: Querying IMSI.\n")));

	iQueryId = EQueryIMSI;

	// Create MMETEl connection.

	User::LeaveIfError( CreateMMETelConnectionL() );

   	iPhone.GetSubscriberId( iStatus, iSubscriberId ); 

	if( !IsActive() )

	{

		SetActive();

	}  

	EAP_TRACE_END(m_am_tools, TRACE_FLAGS_DEFAULT);

}

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

void CEapSimIsaInterface::QueryKcAndSRESL(const TDesC8& aRand)

{

	EAP_TRACE_BEGIN(m_am_tools, TRACE_FLAGS_DEFAULT);

	EAP_TRACE_DEBUG(m_am_tools, TRACE_FLAGS_DEFAULT, (EAPL("ISA interface: Querying Kc and SRES.\n")));

	iQueryId = EQuerySRESandKC;

	EAP_TRACE_DATA_DEBUG(m_am_tools, TRACE_FLAGS_DEFAULT, (EAPL("RAND"),

			aRand.Ptr(),

			aRand.Size()));

	// Rand must be 16 bytes

	if (static_cast<u16_t>(aRand.Length()) != SIM_RAND_LENGTH)

	{

		EAP_TRACE_ERROR(m_am_tools, TRACE_FLAGS_DEFAULT, (EAPL("ISA interface: Illegal RAND - Incorrect length.\n")));

		User::Leave(KErrArgument);

	}

	// Create MMETEL connection.

	User::LeaveIfError( CreateMMETelConnectionL() );

	// Open CustomAPI.

	User::LeaveIfError( iCustomAPI.Open(iPhone) );		

	iEAPSim.iRandomParameters.Copy( aRand ); //Copy the rand to iEAPSim

	//Pack iEAPSim to iAuthenticationData for passing it to the custom API.

	iAuthenticationData = new (ELeave) RMmCustomAPI::TSimDataPckg( iEAPSim );

    iCustomAPI.GetWlanSimAuthenticationData( iStatus, *iAuthenticationData );	

	if( !IsActive() )

	{

		SetActive();

	}  

	EAP_TRACE_END(m_am_tools, TRACE_FLAGS_DEFAULT);

}

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

void CEapSimIsaInterface::DoCancel()

{

	EAP_TRACE_DEBUG(m_am_tools, TRACE_FLAGS_DEFAULT, (EAPL("CEapSimIsaInterface::DoCancel() - Cancelling MMETEL query.\n") ) );

	// Cancel the request.

	iCustomAPI.CancelAsyncRequest( ECustomGetSimAuthenticationDataIPC );

}

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

void CEapSimIsaInterface::RunL()

{

	EAP_TRACE_BEGIN(m_am_tools, TRACE_FLAGS_DEFAULT);

	EAP_TRACE_DEBUG(m_am_tools, TRACE_FLAGS_DEFAULT, (EAPL("CEapSimIsaInterface::RunL(). iStatus.Int() =%d \n"), iStatus.Int() ));

	TInt error = KErrNone;

	eap_variable_data_c imsi(m_am_tools); // Keeping it here to avoid "error" in ARMV5 build.

	// This is to store the IMSI, which is in Unicode form.

	eap_variable_data_c imsiInUnicode(m_am_tools); // Keeping it here to avoid "error" in ARMV5 build.

	// Keeping it here to remove compiler warning.

	eap_status_e completion_status(eap_status_ok);

	if (iStatus.Int() == KErrNone)

	{	

		switch( iQueryId )

		{

			case EQueryIMSI:

				EAP_TRACE_DEBUG(m_am_tools, TRACE_FLAGS_DEFAULT, (EAPL("ISA interface: Got IMSI reply.\n")));

				EAP_TRACE_DATA_DEBUG(m_am_tools, TRACE_FLAGS_DEFAULT, (EAPL("IMSI"),

						iSubscriberId.Ptr(),

						iSubscriberId.Size()));

				// Convert the IMSI from unicode to UTF8 characters.

				completion_status = imsiInUnicode.set_buffer(iSubscriberId.Ptr(), iSubscriberId.Size(), false, false);

				if (completion_status != eap_status_ok)

				{

					imsiInUnicode.reset();

					EAP_TRACE_DEBUG(m_am_tools, TRACE_FLAGS_DEFAULT, (EAPL("ISA interface: Could not set buffer for IMSI. Not proceeding further here.\n")));

				}

				else

				{				

					completion_status = m_am_tools->convert_unicode_to_utf8(imsi, imsiInUnicode);

					if (completion_status != eap_status_ok)

					{

						imsi.reset();

						EAP_TRACE_DEBUG(m_am_tools, TRACE_FLAGS_DEFAULT, (EAPL("ISA interface: Could not convert IMSI from UNICODE to UTF8. Not proceeding further here.\n")));

					}

				}

				TRAP(error, iParent->complete_SIM_imsi_L(&imsi, completion_status));

			break;

			case EQuerySRESandKC:

				EAP_TRACE_DEBUG(m_am_tools, TRACE_FLAGS_DEFAULT, (EAPL("####ISA interface: Got KC and SRES reply. ####\n")));			

				EAP_TRACE_DATA_DEBUG(m_am_tools, TRACE_FLAGS_DEFAULT, (EAPL("SRES before trimming"),

						iEAPSim.iSRES.Ptr(),

						iEAPSim.iSRES.Size()));

				EAP_TRACE_DATA_DEBUG(m_am_tools, TRACE_FLAGS_DEFAULT, (EAPL("KC"),

						iEAPSim.iKC.Ptr(),

						iEAPSim.iKC.Size()));

				// Trim the length of SRES -  Remove once the correct length is set for SRES, may be by the API or some where else.

				iEAPSim.iSRES.SetLength(SIM_SRES_LENGTH);

				EAP_TRACE_DATA_DEBUG(m_am_tools, TRACE_FLAGS_DEFAULT, (EAPL("SRES after Trimming"),

						iEAPSim.iSRES.Ptr(),

						iEAPSim.iSRES.Size()));				

				delete iAuthenticationData;

				iAuthenticationData = NULL;

				// Close the custom API since we don't need it any more.

				iCustomAPI.Close();

				// Complete

				TRAP(error, iParent->complete_SIM_kc_and_sres_L(iEAPSim.iKC, iEAPSim.iSRES, completion_status));			

			break;

		}

	} 

	else 

	{

		EAP_TRACE_DEBUG(m_am_tools, TRACE_FLAGS_DEFAULT, (EAPL("ISA interface: Got error reply.\n")));

		if( EQuerySRESandKC == iQueryId )

		{

			// We have to close the custom API anyway. 

			// Rest will be taken care in destructor.

			iCustomAPI.Close();	

			// Handle duplicate RAND values.

			// If duplicate RAND values are being used, we get KErrArgument here.

			if(iStatus.Int() == KErrArgument)

			{

				completion_status = eap_status_not_fresh_challenges;

			}

			else

			{

				// For all other errors.

				completion_status = m_am_tools->convert_am_error_to_eapol_error(iStatus.Int());

			}

			// Complete the request.

			TRAP(error, iParent->complete_SIM_kc_and_sres_L(iEAPSim.iKC, iEAPSim.iSRES, completion_status));							

		}

		else if(EQueryIMSI == iQueryId)

		{

			completion_status = m_am_tools->convert_am_error_to_eapol_error(iStatus.Int());

			TRAP(error, iParent->complete_SIM_imsi_L(&imsi, completion_status));

		}

	}	

	EAP_TRACE_END(m_am_tools, TRACE_FLAGS_DEFAULT);

}

TInt CEapSimIsaInterface::CreateMMETelConnectionL()

{

	EAP_TRACE_BEGIN(m_am_tools, TRACE_FLAGS_DEFAULT);

	EAP_TRACE_DEBUG(m_am_tools, TRACE_FLAGS_DEFAULT, (EAPL("Creating MMETel connection.\n")));

	TInt errorCode = KErrNone;

	// MMETel need to be connected only once.    

    if( !iMMETELConnectionStatus )

    {

		RTelServer::TPhoneInfo phoneInfo;

		TInt phoneCount = 0;

		// Connect to ETel server

		User::LeaveIfError( iServer.Connect() ); 	

	    EAP_TRACE_DEBUG(m_am_tools, TRACE_FLAGS_DEFAULT, (EAPL("Connected to ETel server.\n")));	

		//This function loads an ETel TSY module. mmtsy.

		errorCode = iServer.LoadPhoneModule( KMmTsyModuleName );	

	    EAP_TRACE_DEBUG(m_am_tools, TRACE_FLAGS_DEFAULT, (EAPL("Loaded phone module.\n")));	    

		if ( errorCode != KErrNone && errorCode != KErrAlreadyExists )

		{

			User::Leave( errorCode );

		}

		iServer.SetExtendedErrorGranularity( RTelServer::EErrorExtended );

		//This function retrieves the total number of phones supported by all 

		//the currently loaded ETel (TSY) modules.

		User::LeaveIfError( iServer.EnumeratePhones( phoneCount ) );	

		EAP_TRACE_DEBUG(m_am_tools, TRACE_FLAGS_DEFAULT, (EAPL("Number of phones supported by the loaded ETel = %d.\n"), phoneCount));

		// This function retrieves information associated with the specified phone

		while ( ( phoneCount-- ) && ( phoneInfo.iName != KMmTsyPhoneName ) ) 

		{ 

			User::LeaveIfError( iServer.GetPhoneInfo( phoneCount, phoneInfo ) );		

		    EAP_TRACE_DEBUG(m_am_tools, TRACE_FLAGS_DEFAULT, (EAPL("Got phone info.\n")));

		} 

		// This function opens a phone subsession by name, 

		User::LeaveIfError( iPhone.Open( iServer, phoneInfo.iName ) );	

	    EAP_TRACE_DEBUG(m_am_tools, TRACE_FLAGS_DEFAULT, (EAPL("Opened phone subsession.\n")));

		// MMETel connected and the phone module loaded fine.	

		iMMETELConnectionStatus = ETrue; 	

    }

    else

    {

    	// MMETel already connected.

	    EAP_TRACE_DEBUG(m_am_tools, TRACE_FLAGS_DEFAULT, (EAPL("MMETel connected once already.\n")));

    }

	EAP_TRACE_END(m_am_tools, TRACE_FLAGS_DEFAULT);

    return errorCode;	

}

// End of file