/*

* 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 148 

	#undef EAP_FILE_NUMBER_DATE 

	#define EAP_FILE_NUMBER_DATE 1127594498 

#endif //#if defined(USE_EAP_MINIMUM_RELEASE_TRACES)

// INCLUDE FILES

#include "eap_am_memory.h"

#include "eap_variable_data.h"

#include "eap_tools.h"

#include "eap_type_all.h"

#include "eapol_am_core_symbian.h"

#include "eapol_ethernet_header.h"

#include "ethernet_core.h"

#include "eap_am_tools_symbian.h"

#include <EapolToWlmIf.h>

#include "EapolDbDefaults.h"

#include "EapolDbParameterNames.h"

#include "eap_crypto_api.h"

#include "eap_header_string.h"

#include "eap_am_file_input_symbian.h"

#include "eap_rogue_ap_entry.h"

#include "abs_eap_state_notification.h"

#include "eapol_session_key.h"

#include "eap_buffer.h"

#include "eap_config.h"

#if defined(USE_EAP_FILECONFIG)

	#include "eap_file_config.h"

#endif //#if defined(USE_EAP_FILECONFIG)

#if defined (USE_EAPOL_KEY_STATE) 

	#include "eapol_key_state.h"	

#endif

// LOCAL CONSTANTS

const TUint KMaxSqlQueryLength = 2048;

const TUint KMaxConfigStringLength = 256;

const u32_t KMTU = 1500u;

const u32_t KTrailerLength = 0;

const u32_t KHeaderOffset = 0;

const TUint KMaxEapCueLength = 3;

enum eapol_am_core_timer_id_e

{

	EAPOL_AM_CORE_TIMER_RESTART_AUTHENTICATION_ID,

	EAPOL_AM_CORE_TIMER_DELETE_STACK_ID,

	EAPOL_AM_CORE_TIMER_FAILED_COMPLETELY_ID,

};

const TUint8 TEST_RSN_IE[] =

{

	0xdd, // information element id, 221 expressed as Hex value

	0x14, // length in octets, 20 expressed as Hex value

	0x01, 0x00, // Version 1

	0x00, 0x0f, 0xac, 0x04, // CCMP as group key cipher suite

	0x01, 0x00, // pairwise key cipher suite count

	0x00, 0x0f, 0xac, 0x04, // CCMP as pairwise key cipher suite

	0x01, 0x00, // authentication count

	0x00, 0x0f, 0xac, 0x01, // 802.1X authentication

	0x01, 0x00, // Pre-authentication capabilities

};

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

eapol_am_core_symbian_c::eapol_am_core_symbian_c(MEapolToWlmIf * const aPartner,

												 const bool is_client_when_true,

												 const TUint aServerIndex)

: CActive(CActive::EPriorityStandard)

, m_partner(aPartner)

, m_ethernet_core(0)

, m_am_tools(0)

, m_enable_random_errors(false)

, m_error_probability(0u)

, m_generate_multiple_error_packets(0u)

, m_authentication_counter(0u)

, m_successful_authentications(0u)

, m_failed_authentications(0u)

, m_is_valid(false)

, m_is_client(is_client_when_true)

, m_eap_index(0u)

, m_index_type(ELan)

, m_index(aServerIndex)

//, m_timer(0)

, m_packet_index(0)

, m_manipulate_ethernet_header(false)

, m_send_original_packet_first(false)

, m_authentication_indication_sent(false)

, m_unicast_wep_key_received(false)

, m_broadcast_wep_key_received(false)

, m_block_packet_sends_and_notifications(false)

, m_success_indication_sent(false)

, m_first_authentication(true)

, m_self_disassociated(false)

, m_802_11_authentication_mode(EAuthModeOpen)

, m_receive_network_id(0)

, m_wpa_override_enabled(false)

, m_wpa_psk_mode_allowed(false)

, m_wpa_psk_mode_active(false)

, m_stack_marked_to_be_deleted(false)

, m_active_type_is_leap(false)

, m_fileconfig(0)

{

}	

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

void eapol_am_core_symbian_c::ConstructL()

{

	if (m_partner == 0)

	{

		User::Leave(KErrGeneral);

	}

	// Create tools class

	m_am_tools = new(ELeave) eap_am_tools_symbian_c(EAP_DEFAULT_TRACE_FILE);

	if (m_am_tools->get_is_valid() != true)

	{

		// The real reason most likely is KErrNoMemory but since that is not sure we'll use KErrGeneral

		User::Leave(KErrGeneral);

	}

	if (m_am_tools->configure() != eap_status_ok)

	{

		User::Leave(KErrGeneral);

	}

	EAP_TRACE_DEBUG(

		m_am_tools,

		TRACE_FLAGS_DEFAULT,

		(EAPL("EAPOL INITIALISATION\n")));	

	EAP_TRACE_DEBUG(

		m_am_tools,

		TRACE_FLAGS_DEFAULT,

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

	m_wpa_preshared_key = new (ELeave) eap_variable_data_c(m_am_tools);

	m_ssid = new (ELeave) eap_variable_data_c(m_am_tools);

	m_wpa_psk_password_override = new (ELeave) eap_variable_data_c(m_am_tools);

	// Create/initialise the database

	OpenDatabaseL(m_database, m_session);

	EAP_TRACE_DEBUG(

		m_am_tools,

		TRACE_FLAGS_DEFAULT,

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

#if defined(USE_EAP_FILECONFIG)

	{

		EAP_TRACE_DEBUG(

			m_am_tools,

			TRACE_FLAGS_DEFAULT,

			(EAPL("Initialize file configuration.\n")));

			eap_am_file_input_symbian_c fileio(m_am_tools);

		eap_variable_data_c file_name_c_data(m_am_tools);

		eap_status_e status(eap_status_process_general_error);

		{

			eap_const_string const FILECONFIG_FILENAME_C

				= "c:\\system\\data\\eap.conf";

			status = file_name_c_data.set_copy_of_buffer(

				FILECONFIG_FILENAME_C,

				m_am_tools->strlen(FILECONFIG_FILENAME_C));

			if (status != eap_status_ok)

			{

				EAP_TRACE_END(m_am_tools, TRACE_FLAGS_DEFAULT);

				User::Leave(m_am_tools->convert_eapol_error_to_am_error(EAP_STATUS_RETURN(m_am_tools, status)));

			}

			status = file_name_c_data.add_end_null();

			if (status != eap_status_ok)

			{

				EAP_TRACE_END(m_am_tools, TRACE_FLAGS_DEFAULT);

				User::Leave(m_am_tools->convert_eapol_error_to_am_error(EAP_STATUS_RETURN(m_am_tools, status)));

			}

		}

		eap_variable_data_c file_name_z_data(m_am_tools);

		{

			eap_const_string const FILECONFIG_FILENAME_Z

				= "z:\\private\\101F8EC5\\eap.conf";

			status = file_name_z_data.set_copy_of_buffer(

				FILECONFIG_FILENAME_Z,

				m_am_tools->strlen(FILECONFIG_FILENAME_Z));

			if (status != eap_status_ok)

			{

				EAP_TRACE_END(m_am_tools, TRACE_FLAGS_DEFAULT);

				User::Leave(m_am_tools->convert_eapol_error_to_am_error(EAP_STATUS_RETURN(m_am_tools, status)));

			}

			status = file_name_z_data.add_end_null();

			if (status != eap_status_ok)

			{

				EAP_TRACE_END(m_am_tools, TRACE_FLAGS_DEFAULT);

				User::Leave(m_am_tools->convert_eapol_error_to_am_error(EAP_STATUS_RETURN(m_am_tools, status)));

			}

		}

		if (status == eap_status_ok)

		{

			// First try open from C: disk.

			status = fileio.file_open(

				&file_name_c_data,

				eap_file_io_direction_read);

			if (status == eap_status_ok)

			{

				EAP_TRACE_DEBUG(

					m_am_tools,

					TRACE_FLAGS_DEFAULT,

					(EAPL("Opens configure file %s\n"),

					file_name_c_data.get_data(file_name_c_data.get_data_length())));

			}

			else if (status != eap_status_ok)

			{

				// Second try open from Z: disk.

				status = fileio.file_open(

					&file_name_z_data,

					eap_file_io_direction_read);

				if (status == eap_status_ok)

				{

					EAP_TRACE_DEBUG(

						m_am_tools,

						TRACE_FLAGS_DEFAULT,

						(EAPL("Opens configure file %s\n"),

						 file_name_z_data.get_data(file_name_z_data.get_data_length())));

				}

			}

			if (status == eap_status_ok)

			{

				// Some of the files were opened.

				m_fileconfig = new eap_file_config_c(m_am_tools);

				if (m_fileconfig != 0

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

				{

					status = m_fileconfig->configure(&fileio);

					if (status != eap_status_ok)

					{

						EAP_TRACE_DEBUG(

							m_am_tools,

							TRACE_FLAGS_DEFAULT,

							(EAPL("ERROR: Configure read from %s failed.\n"),

							file_name_c_data.get_data(file_name_c_data.get_data_length())));

					}

					else

					{

						EAP_TRACE_DEBUG(

							m_am_tools,

							TRACE_FLAGS_DEFAULT,

							(EAPL("Configure read from %s\n"),

							file_name_c_data.get_data(file_name_c_data.get_data_length())));

					}

				}

				else

				{

					// No file configuration.

					delete m_fileconfig;

					m_fileconfig = 0;

					EAP_TRACE_DEBUG(

						m_am_tools,

						TRACE_FLAGS_DEFAULT,

						(EAPL("ERROR: Cannot create configure object for file %s\n"),

						file_name_c_data.get_data(file_name_c_data.get_data_length())));

				}

			}

			else

			{

				EAP_TRACE_DEBUG(

					m_am_tools,

					TRACE_FLAGS_DEFAULT,

					(EAPL("ERROR: Cannot open configure file neither %s nor %s\n"),

					file_name_c_data.get_data(file_name_c_data.get_data_length()),

					file_name_z_data.get_data(file_name_z_data.get_data_length())));

			}

		}

	}

#endif //#if defined(USE_EAP_FILECONFIG)

#if !defined(USE_EAP_HARDWARE_TRACE)

	{

		// Disable traces.

		m_am_tools->set_trace_mask(eap_am_tools_c::eap_trace_mask_none);

		eap_variable_data_c trace_output_file(m_am_tools);

		eap_status_e 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 = m_am_tools->set_trace_file_name(&trace_output_file);

			if (status == eap_status_ok)

			{

				// OK, set the default trace mask.

				m_am_tools->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);

			}

		}

	}

#endif //#if defined(USE_EAP_HARDWARE_TRACE)

	{

		eap_status_e status = configure();

		if (status != eap_status_ok)

		{

			User::Leave(KErrGeneral);

			User::Leave(m_am_tools->convert_eapol_error_to_am_error(EAP_STATUS_RETURN(m_am_tools, status)));

		}

	}

	EAP_TRACE_DEBUG(

		m_am_tools,

		TRACE_FLAGS_DEFAULT,

		(EAPL("Configured EAPOL AM...\n")));

	EAP_TRACE_DEBUG(

		m_am_tools,

		TRACE_FLAGS_DEFAULT,

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

	// SERVER TEST CODE

	if (m_is_client == false)

	{

		TRAPD(err, ReadEAPSettingsL());

		if (err != KErrNone)

		{

			// Setting reading from CommDB failed. Use default values instead (only EAP-SIM).

			// SIM

			_LIT(KSIM, "18");

			TEap* sim = new(ELeave) TEap;

			CleanupStack::PushL(sim);

			sim->Enabled = ETrue;

			sim->UID.Copy(KSIM);		

			User::LeaveIfError(m_iap_eap_array.Append(sim));

			CleanupStack::Pop(sim);

		}

	}

	EAP_TRACE_DEBUG(

		m_am_tools,

		TRACE_FLAGS_DEFAULT,

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

	set_is_valid();

}

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

eapol_am_core_symbian_c* eapol_am_core_symbian_c::NewL(MEapolToWlmIf * const aPartner,

												  const bool aIsClient,

												  const TUint aServerIndex)

{

	eapol_am_core_symbian_c* self = new(ELeave) eapol_am_core_symbian_c(aPartner, aIsClient, aServerIndex);

	CleanupStack::PushL(self);

	self->ConstructL();

	if (self->get_is_valid() != true)

	{

		User::Leave(KErrGeneral);

	}

	CleanupStack::Pop();

	return self;

}

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

eapol_am_core_symbian_c::~eapol_am_core_symbian_c()

{

#if defined(USE_EAP_FILECONFIG)

	delete m_fileconfig;

	m_fileconfig = 0;

#endif //#if defined(USE_EAP_FILECONFIG)

	shutdown();

}

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

//

eap_status_e eapol_am_core_symbian_c::shutdown()

{

	EAP_TRACE_BEGIN(m_am_tools, TRACE_FLAGS_DEFAULT);

	EAP_TRACE_DEBUG(

		m_am_tools,

		TRACE_FLAGS_DEFAULT,

		(EAPL("eapol_am_core_symbian_c::shutdown()\n")));

	// Cancel timer	

	cancel_all_timers();

	// Delete upper stack if it still exists

	if (m_ethernet_core != 0)

	{

		m_ethernet_core->shutdown();

		delete m_ethernet_core;

	}

	delete m_wpa_preshared_key;

	delete m_ssid;

	delete m_wpa_psk_password_override;

	delete m_receive_network_id;

	m_database.Close();

	m_session.Close();

	// Print some statistics

	if (m_is_client)

	{

		EAP_TRACE_ALWAYS(

			m_am_tools,

			TRACE_FLAGS_ALWAYS|TRACE_TEST_VECTORS,

			(EAPL("client authentication SUCCESS %d, FAILED %d, count %d\n"),

			m_successful_authentications,

			m_failed_authentications,

			m_authentication_counter));	

	}

	else

	{

		EAP_TRACE_ALWAYS(

			m_am_tools,

			TRACE_FLAGS_ALWAYS|TRACE_TEST_VECTORS,

			(EAPL("server authentication SUCCESS %d, FAILED %d, count %d\n"),

			m_successful_authentications,

			m_failed_authentications,

			m_authentication_counter));

	}	

	EAP_TRACE_DEBUG(

		m_am_tools,

		TRACE_FLAGS_DEFAULT,

		(EAPL("EAPOL EXITING.\n")));

	EAP_TRACE_END(m_am_tools, TRACE_FLAGS_DEFAULT);	

	// Finally delete tools. No logging is allowed after this.

	if (m_am_tools != 0)

	{

		m_am_tools->shutdown();

		delete m_am_tools;

	}

	// Unload all loaded plugins

	// NOTE this must be after the m_am_tools->shutdown() call.

	// m_am_tools->shutdown() will run virtual functions of some plugins.

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

	{

		delete m_plugin_if_array[i];

	}

	m_plugin_if_array.Close();

	m_eap_type_array.Close();

	// Delete the IAP EAP type info array

	m_iap_eap_array.ResetAndDestroy();

	return eap_status_ok;

}

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

//

void eapol_am_core_symbian_c::RunL()

{

	EAP_TRACE_BEGIN(m_am_tools, TRACE_FLAGS_DEFAULT);	

	EAP_TRACE_DEBUG(

		m_am_tools,

		TRACE_FLAGS_DEFAULT,

		(EAPL("eapol_am_core_symbian_c::RunL(): iStatus.Int() = %d\n"),

		iStatus.Int()));

	if (iStatus.Int() != KErrNone)

	{

		return;

	}

	// Authentication cancelled.