/*

* Copyright (c) 2001-2010 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.

*

*/

/*

* %version: 49 %

*/

#include "eap_am_stack_symbian.h"

#include "eap_array_algorithms.h"

#include "eap_base_type.h"

#include "eap_header_string.h"

#include "EapConversion.h"

#include "eapol_key_state_string.h"

#include "eap_type_tls_peap_types.h"

#include "EapPluginDbDefaults.h"

#include "EapConfigToolsSymbian.h"

#include "eap_am_general_settings_symbian.h"

class CEapTypePlugin;

// LOCAL CONSTANTS

const TUint KMaxSqlQueryLength = 2048;

const TUint KExpandedEAPSize = 8;

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

EAP_FUNC_EXPORT eap_am_stack_symbian_c::eap_am_stack_symbian_c(class abs_eap_am_tools_c * tools, bool is_client_when_true)

	: CActive(0)

	, iTools (tools)

	, iIsClient(is_client_when_true)

	, iPartner(0)

	, m_client_config(tools)

	, iFileconfig(0)

	, iEnabledEapMethodsArray(tools)

	, iDisabledEapMethodsArray(tools)

	, m_eap_type_array(tools)

	, iConfigurationIf(0)

	, iIndexType(ELan)

	, iIndex(0UL)

	, iCurrentEapIndex(0)

	, m_selected_eapol_key_authentication_type(eapol_key_authentication_type_none)

{

    EAP_TRACE_DEBUG(

        tools, 

        TRACE_FLAGS_DEFAULT, 

        (EAPL("eap_am_stack_symbian_c::eap_am_stack_symbian_c()\n")));

    EAP_TRACE_RETURN_STRING(tools, "returns: eap_am_stack_symbian_c::eap_am_stack_symbian_c()");

    iIsValid = ETrue;

    return;

}

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

EAP_FUNC_EXPORT eap_am_stack_symbian_c::~eap_am_stack_symbian_c()

    {

    EAP_TRACE_DEBUG(

        iTools, 

        TRACE_FLAGS_DEFAULT, 

        (EAPL("eap_am_stack_symbian_c::~eap_am_stack_symbian_c()\n")));

	Cancel();

    EAP_TRACE_RETURN_STRING(iTools, "returns: eap_am_stack_symbian_c::~eap_am_stack_symbian_c()");

    }

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

EAP_FUNC_EXPORT bool eap_am_stack_symbian_c::get_is_valid()

    {

    return iIsValid;

    }

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

EAP_FUNC_EXPORT eap_status_e eap_am_stack_symbian_c::set_partner(abs_eap_am_stack_c * partner, abs_eap_configuration_if_c * configuration_if)

    {

    eap_status_e aStatus(eap_status_ok);

    iPartner = partner;

    iConfigurationIf = configuration_if;

    return aStatus;

    }

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

eap_status_e eap_am_stack_symbian_c::reset_eap_configuration()

{

	EAP_TRACE_BEGIN(iTools, TRACE_FLAGS_DEFAULT);

	EAP_TRACE_DEBUG(

		iTools, 

		TRACE_FLAGS_DEFAULT, 

		(EAPL("eap_am_stack_symbian_c::reset_eap_configuration(): %s, this = 0x%08x\n"),

		 (iIsClient == true) ? "client": "server",

		 this));

    EAP_TRACE_RETURN_STRING(iTools, "returns: eap_am_stack_symbian_c::reset_eap_configuration()");

	eap_status_e status(eap_status_ok);

	TRAPD(error, ReadEAPSettingsL());

	if (error != KErrNone)

	{

		EAP_TRACE_ERROR(

			iTools,

			TRACE_FLAGS_DEFAULT,

			(EAPL("EAP settings reading from CommDb failed or cancelled(error %d).\n"), error));

		status = iTools->convert_am_error_to_eapol_error(error);

	}

	EAP_TRACE_END(iTools, TRACE_FLAGS_DEFAULT);

	return EAP_STATUS_RETURN(iTools, status);

}

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

// This is documented in abs_eap_stack_interface_c::configure().

EAP_FUNC_EXPORT eap_status_e eap_am_stack_symbian_c::configure(

	const eap_variable_data_c * const client_configuration)

    {

    EAP_TRACE_BEGIN(iTools, TRACE_FLAGS_DEFAULT);

    EAP_TRACE_DEBUG(

        iTools, 

        TRACE_FLAGS_DEFAULT, 

        (EAPL("eap_am_stack_symbian_c::configure(): %s, this = 0x%08x => 0x%08x\n"),

         (iIsClient == true) ? "client": "server",

         this,

         dynamic_cast<abs_eap_base_timer_c *>(this)));

    EAP_TRACE_RETURN_STRING(iTools, "returns: eap_am_stack_symbian_c::configure()");

    TInt error(KErrNone);

	eap_status_e status(eap_status_ok);

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

	if (client_configuration != 0

		&& client_configuration->get_is_valid_data() == true)

	{

		status = m_client_config.read_configuration_message(client_configuration);

		if (status != eap_status_ok)

		{

			EAP_TRACE_END(iTools, TRACE_FLAGS_DEFAULT);

			return EAP_STATUS_RETURN(iTools, status);

		}

	}

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

    // Open the database session

    error = iSession.Connect();

    if (error != KErrNone)

    {

        status = EAP_STATUS_RETURN(iTools, iTools->convert_am_error_to_eapol_error(error));

        EAP_TRACE_DEBUG(

            iTools,

            TRACE_FLAGS_DEFAULT,

            (EAPL("RDbs::Connect() failed %d.\n"),

            status));

        EAP_TRACE_END(iTools, TRACE_FLAGS_DEFAULT);

        return EAP_STATUS_RETURN(iTools, status);

    }

    EAP_TRACE_DEBUG(

        iTools,

        TRACE_FLAGS_DEFAULT,

        (EAPL("Database session initialized...\n")));

    // Connect to FS

    error = iFs.Connect();

    if (error != KErrNone)

    {

        status = EAP_STATUS_RETURN(iTools, iTools->convert_am_error_to_eapol_error(error));

        EAP_TRACE_DEBUG(

            iTools,

            TRACE_FLAGS_DEFAULT,

            (EAPL("RFs::Connect() failed %d.\n"),

            status));

        EAP_TRACE_END(iTools, TRACE_FLAGS_DEFAULT);

        return EAP_STATUS_RETURN(iTools, status);

    }

    EAP_TRACE_DEBUG(

        iTools,

        TRACE_FLAGS_DEFAULT,

        (EAPL("Fileserver session initialized...\n")));

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

	status = EapConfigToolsSymbian::EapReadDefaultConfigFileSymbian(

		iTools,

		&iFileconfig);

	if (status != eap_status_ok)

	{

		EAP_TRACE_END(m_am_tools, TRACE_FLAGS_DEFAULT);

		return EAP_STATUS_RETURN(iTools, status);

	}

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

#if defined(USE_EAP_FILE_TRACE)

    {

        eap_variable_data_c trace_output_file(iTools);

        status = read_configure(

            cf_str_EAP_TRACE_output_file_name.get_field(),

            &trace_output_file);

        if (status == eap_status_ok

            && trace_output_file.get_is_valid_data() == true)

        {

            status = iTools->set_trace_file_name(&trace_output_file);

            if (status == eap_status_ok)

            {

                // OK, set the default trace mask.

                iTools->set_trace_mask(

                    eap_am_tools_c::eap_trace_mask_debug

                    | eap_am_tools_c::eap_trace_mask_always

                    | eap_am_tools_c::eap_trace_mask_error

                    | eap_am_tools_c::eap_trace_mask_message_data);

            }

        }

    }

#endif //#if defined(USE_EAP_FILE_TRACE)

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

	{

		eap_variable_data_c EAP_TRACE_enable_timer_traces(iTools);

		status = read_configure(

			cf_str_EAP_TRACE_enable_timer_traces.get_field(),

			&EAP_TRACE_enable_timer_traces);

		if (status == eap_status_ok

			&& EAP_TRACE_enable_timer_traces.get_is_valid_data() == true)

		{

			u32_t *enable_timer_traces = reinterpret_cast<u32_t *>(

				EAP_TRACE_enable_timer_traces.get_data(sizeof(u32_t)));

			if (enable_timer_traces != 0

				&& *enable_timer_traces != 0)

			{

				iTools->set_trace_mask(

					iTools->get_trace_mask()

					| TRACE_FLAGS_TIMER

					);

			}

		}

	}

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

	{

		eap_variable_data_c EAP_TRACE_enable_timer_queue_traces(iTools);

		status = read_configure(

			cf_str_EAP_TRACE_enable_timer_queue_traces.get_field(),

			&EAP_TRACE_enable_timer_queue_traces);

		if (status == eap_status_ok

			&& EAP_TRACE_enable_timer_queue_traces.get_is_valid_data() == true)

		{

			u32_t *enable_timer_queue_traces = reinterpret_cast<u32_t *>(

				EAP_TRACE_enable_timer_queue_traces.get_data(sizeof(u32_t)));

			if (enable_timer_queue_traces != 0

				&& *enable_timer_queue_traces != 0)

			{

				iTools->set_trace_mask(

					iTools->get_trace_mask()

					| TRACE_FLAGS_TIMER_QUEUE

					);

			}

		}

	}

    {

        eap_variable_data_c EAP_TRACE_enable_function_traces(iTools);

        status = read_configure(

            cf_str_EAP_TRACE_enable_function_traces.get_field(),

            &EAP_TRACE_enable_function_traces);

        if (status == eap_status_ok

            && EAP_TRACE_enable_function_traces.get_is_valid_data() == true)

        {

            u32_t *enable_function_traces = reinterpret_cast<u32_t *>(

                EAP_TRACE_enable_function_traces.get_data(sizeof(u32_t)));

            if (enable_function_traces != 0

                && *enable_function_traces != 0)

            {

                iTools->set_trace_mask(

                    iTools->get_trace_mask()

                    | eap_am_tools_c::eap_trace_mask_functions

                    );

            }

        }

    }

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

    EAP_TRACE_DEBUG(

        iTools,

        TRACE_FLAGS_DEFAULT,

        (EAPL("Created timer...\n")));

    EAP_TRACE_END(iTools, TRACE_FLAGS_DEFAULT);

    return EAP_STATUS_RETURN(iTools, eap_status_ok);

    }

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

eap_status_e eap_am_stack_symbian_c::reset_eap_plugins()

{

	EAP_TRACE_BEGIN(iTools, TRACE_FLAGS_DEFAULT);

	EAP_TRACE_DEBUG(

		iTools, 

		TRACE_FLAGS_DEFAULT, 

		(EAPL("eap_am_stack_symbian_c::reset_eap_plugins(): %s, this = 0x%08x => 0x%08x\n"),

		 (iIsClient == true) ? "client": "server",

		 this,

		 dynamic_cast<abs_eap_base_timer_c *>(this)));

	// Unload all loaded plugins

	for(int ind = 0; ind < m_plugin_if_array.Count(); ind++)

	{

		delete m_plugin_if_array[ind];

	}

	m_plugin_if_array.Close();

	iEnabledEapMethodsArray.reset();

	iDisabledEapMethodsArray.reset();

	m_eap_type_array.reset();

	EAP_TRACE_END(iTools, TRACE_FLAGS_DEFAULT);

	return EAP_STATUS_RETURN(iTools, eap_status_ok);

}

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

// This is documented in abs_eap_stack_interface_c::shutdown().

EAP_FUNC_EXPORT eap_status_e eap_am_stack_symbian_c::shutdown()

{

	EAP_TRACE_BEGIN(iTools, TRACE_FLAGS_DEFAULT);

	EAP_TRACE_ALWAYS(

		iTools, 

		TRACE_FLAGS_DEFAULT, 

		(EAPL("eap_am_stack_symbian_c::shutdown(): %s, this = 0x%08x => 0x%08x\n"),

		 (iIsClient == true) ? "client": "server",

		 this,

		 dynamic_cast<abs_eap_base_timer_c *>(this)));

	delete iFileconfig;

	iFileconfig = 0;

	(void) reset_eap_plugins();

	EAP_TRACE_END(iTools, TRACE_FLAGS_DEFAULT);

	return EAP_STATUS_RETURN(iTools, eap_status_ok);

}

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

EAP_FUNC_EXPORT eap_status_e eap_am_stack_symbian_c::read_configure(

    const eap_configuration_field_c * const field,

    eap_variable_data_c * const data) 

{

    EAP_TRACE_BEGIN(iTools, TRACE_FLAGS_DEFAULT);

    EAP_ASSERT_ALWAYS_TOOLS(iTools, data != NULL);

    EAP_TRACE_DEBUG(

        iTools, 

        TRACE_FLAGS_DEFAULT, 

        (EAPL("eap_am_stack_symbian_c::read_configure(): %s, %d=%s, this = 0x%08x => 0x%08x\n"),

         (iIsClient == true) ? "client": "server",

		 m_selected_eapol_key_authentication_type,

		 eapol_key_state_string_c::get_eapol_key_authentication_type_string(m_selected_eapol_key_authentication_type),

         this,

         dynamic_cast<abs_eap_base_timer_c *>(this)));

	EAP_TRACE_DATA_DEBUG(

		iTools,

		TRACE_FLAGS_DEFAULT,

		(EAPL("eap_am_stack_symbian_c::read_configure()"),

		 field->get_field(),

		 field->get_field_length()));

    EAP_TRACE_RETURN_STRING(iTools, "returns: eap_am_stack_symbian_c::read_configure()");

    // Trap must be set here because the OS independent portion of EAPOL

    // that calls this function does not know anything about Symbian.   

    eap_status_e status(eap_status_ok);

    // Check if the wanted parameter is default type

	if (field->compare(iTools, cf_str_EAP_default_type_hex_data.get_field()) == true)

	{

		// First check do we have read configuration from databases.

		if (m_selected_eapol_key_authentication_type == eapol_key_authentication_type_WPS)

		{

			EAP_TRACE_DEBUG(

				iTools,

				TRACE_FLAGS_DEFAULT,

				(EAPL("m_selected_eapol_key_authentication_type = eapol_key_authentication_type_WPS\n")));

			status = eap_expanded_type_simple_config.get_type().get_expanded_type_data(

				iTools,

				data);

			if (status == eap_status_ok)

			{

				set_current_eap_index(0);

			}

			EAP_TRACE_END(iTools, TRACE_FLAGS_DEFAULT);

			return EAP_STATUS_RETURN(iTools, status);

		}

		else if (iEnabledEapMethodsArray.get_object_count() == 0ul)

		{

			EAP_TRACE_ERROR(

				iTools,

				TRACE_FLAGS_DEFAULT,

				(EAPL("EAP settings not read from CommsDat\n")));

			EAP_TRACE_END(iTools, TRACE_FLAGS_DEFAULT);	

			return EAP_STATUS_RETURN(iTools, eap_status_process_general_error);

		}

		// Now we need to return here the next EAP type we should try

		TInt ind = get_current_eap_index(); 

		if (get_current_eap_index() < iEnabledEapMethodsArray.get_object_count())

		{

			eap_type_value_e * const next_eap_method = iEnabledEapMethodsArray.get_object(get_current_eap_index());

			if (next_eap_method != 0

				&& next_eap_method->get_is_valid() == true)

			{

				status = data->set_buffer_length(eap_expanded_type_c::get_eap_expanded_type_size());

				if (status != eap_status_ok)

				{

					EAP_TRACE_END(iTools, TRACE_FLAGS_DEFAULT);

					return EAP_STATUS_RETURN(iTools, eap_status_allocation_error);

				}

				status = data->set_data_length(eap_expanded_type_c::get_eap_expanded_type_size());

				if (status != eap_status_ok)

				{

					EAP_TRACE_END(iTools, TRACE_FLAGS_DEFAULT);

					return EAP_STATUS_RETURN(iTools, status);

				}

				status = eap_expanded_type_c::write_type(

					iTools,

					0ul,

					data->get_data(),

					data->get_data_length(),

					true,

					*next_eap_method);

				if (status != eap_status_ok)

				{

					EAP_TRACE_END(iTools, TRACE_FLAGS_DEFAULT);

					return EAP_STATUS_RETURN(iTools, status);

				}

			}

		}

		if (ind >= iEnabledEapMethodsArray.get_object_count())

		{

			// Not found any other EAP type as enabled.

			// Send WLM notification because there is no way that the authentication

			// can be successful if we don't have any EAP types to use...

			if (iIsClient)

			{

				EAP_TRACE_ERROR(

					iTools,

					TRACE_FLAGS_DEFAULT,

					(EAPL("ERROR: read_configure: No configured EAP types or all tried unsuccessfully.\n")));

			}

			EAP_TRACE_END(iTools, TRACE_FLAGS_DEFAULT);

			return EAP_STATUS_RETURN(iTools, eap_status_illegal_configure_field);

		}

		EAP_TRACE_END(iTools, TRACE_FLAGS_DEFAULT);

		return EAP_STATUS_RETURN(iTools, status);

	} // if ()

#if defined(USE_EAP_FILECONFIG)

    {

		status = m_client_config.read_configure(field, data);

		if (status != eap_status_ok)

		{

			if (iFileconfig != 0

				&& iFileconfig->get_is_valid() == true)

			{

				// Here we could try the final configuration option.

				status = iFileconfig->read_configure(

					field,

					data);

			}