/*

* 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-plugin message interface in the server.

*

*/

/*

*/

// This is enumeration of EAPOL source code.

#if defined(USE_EAP_MINIMUM_RELEASE_TRACES)

	#undef EAP_FILE_NUMBER_ENUM

	#define EAP_FILE_NUMBER_ENUM 746 

	#undef EAP_FILE_NUMBER_DATE 

	#define EAP_FILE_NUMBER_DATE 1127594498 

#endif //#if defined(USE_EAP_MINIMUM_RELEASE_TRACES)

#include "eap_am_memory.h"

#include "eap_tools.h"

#include "eap_plugin_server_message_if.h"

#include "eap_crypto_api.h"

#include "eap_state_notification.h"

#include "eap_automatic_variable.h"

#include "eap_network_id_selector.h"

#include "eap_config.h"

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

// 

EAP_FUNC_EXPORT eap_plugin_server_message_if_c::~eap_plugin_server_message_if_c()

{

	EAP_TRACE_BEGIN(m_am_tools, TRACE_FLAGS_DEFAULT);

	EAP_TRACE_DEBUG(

		m_am_tools, 

		(EAPL("eap_plugin_server_message_if_c::~eap_plugin_server_message_if_c(): this = 0x%08x\n"),

		this));

	EAP_ASSERT(m_shutdown_was_called == true);

	delete m_am_plugin;

	EAP_TRACE_END(m_am_tools, TRACE_FLAGS_DEFAULT);

}

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

#if defined(_WIN32) && !defined(__GNUC__)

	#pragma warning( disable : 4355 ) // 'this' : used in base member initializer list

#endif

// 

EAP_FUNC_EXPORT eap_plugin_server_message_if_c::eap_plugin_server_message_if_c(

	abs_eap_am_tools_c * const tools)

	: m_partner(0)

	, m_am_plugin(new_eap_am_plugin_c(tools, this))

	, m_am_tools(tools)

	, m_error_code(eap_status_ok)

	, m_error_function(eap_tlv_message_type_function_none)

	, m_is_client(false)

	, m_is_valid(false)

	, m_shutdown_was_called(false)

{

	EAP_TRACE_BEGIN(m_am_tools, TRACE_FLAGS_DEFAULT);

	EAP_TRACE_DEBUG(

		m_am_tools, 

		(EAPL("eap_plugin_server_message_if_c::eap_plugin_server_message_if_c(): %s, this = 0x%08x => 0x%08x, compiled %s %s.\n"),

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

		this,

		dynamic_cast<abs_eap_base_timer_c *>(this),

		__DATE__,

		__TIME__));

	if (m_am_plugin != 0

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

	{

		set_is_valid();

	}

	EAP_TRACE_END(m_am_tools, TRACE_FLAGS_DEFAULT);

}

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

//

EAP_FUNC_EXPORT eap_status_e eap_plugin_server_message_if_c::configure(

	const eap_variable_data_c * const /* client_configuration */)

{

	EAP_ASSERT(m_am_tools->get_global_mutex()->get_is_reserved() == true);

	EAP_TRACE_DEBUG(

		m_am_tools,

		(EAPL("%s: eap_plugin_server_message_if_c::configure()\n"),

		(m_is_client == true) ? "client": "server"));

	eap_status_e status(eap_status_process_general_error);

	if (m_am_plugin != 0)

	{

		status = m_am_plugin->configure();

		if (status != eap_status_ok)

		{

			EAP_TRACE_END(m_am_tools, TRACE_FLAGS_DEFAULT);

			return EAP_STATUS_RETURN(m_am_tools, status);

		}

	}

	return EAP_STATUS_RETURN(m_am_tools, status);

}

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

//

EAP_FUNC_EXPORT eap_status_e eap_plugin_server_message_if_c::shutdown()

{

	EAP_TRACE_DEBUG(

		m_am_tools,

		(EAPL("%s: eap_plugin_server_message_if_c::shutdown(), m_shutdown_was_called=%d\n"),

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

		m_shutdown_was_called));

	EAP_ASSERT(m_am_tools->get_global_mutex()->get_is_reserved() == true);

	if (m_shutdown_was_called == true)

	{

		// Shutdown function was called already.

		return EAP_STATUS_RETURN(m_am_tools, eap_status_ok);

	}

	m_shutdown_was_called = true;

	if (m_am_plugin != 0)

	{

		(void) m_am_plugin->shutdown();

	}

	return EAP_STATUS_RETURN(m_am_tools, eap_status_ok);

}

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

//

EAP_FUNC_EXPORT void eap_plugin_server_message_if_c::set_partner(abs_eap_am_message_if_c * const partner)

{

	m_partner = partner;

}

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

EAP_FUNC_EXPORT eap_status_e eap_plugin_server_message_if_c::send_error_message(

	const eap_status_e error_code,

	const eap_tlv_message_type_function_e function)

{

	eap_status_e status(eap_status_ok);

	{

		// Creates message data composed of Attribute-Value Pairs.

		eap_process_tlv_message_data_c message(m_am_tools);

		if (message.get_is_valid() == false)

		{

			EAP_TRACE_END(m_am_tools, TRACE_FLAGS_DEFAULT);

			return EAP_STATUS_RETURN(m_am_tools, eap_status_allocation_error);

		}

		status = message.add_parameter_data(

			eap_tlv_message_type_error,

			static_cast<u32_t>(error_code));

		if (status != eap_status_ok)

		{

			EAP_TRACE_END(m_am_tools, TRACE_FLAGS_DEFAULT);

			return EAP_STATUS_RETURN(m_am_tools, status);

		}

		status = message.add_parameter_data(function);

		if (status != eap_status_ok)

		{

			EAP_TRACE_END(m_am_tools, TRACE_FLAGS_DEFAULT);

			return EAP_STATUS_RETURN(m_am_tools, status);

		}

		status = send_message(&message);

		if (status != eap_status_ok)

		{

			EAP_TRACE_END(m_am_tools, TRACE_FLAGS_DEFAULT);

			return EAP_STATUS_RETURN(m_am_tools, status);

		}

	}

	EAP_TRACE_END(m_am_tools, TRACE_FLAGS_DEFAULT);

	return EAP_STATUS_RETURN(m_am_tools, eap_status_ok);

}

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

EAP_FUNC_EXPORT eap_status_e eap_plugin_server_message_if_c::send_message(eap_process_tlv_message_data_c * const message)

{

	// Sends message data composed of Attribute-Value Pairs.

	EAP_TRACE_DEBUG(

		m_am_tools, 

		(EAPL("eap_plugin_server_message_if_c::send_message(): this = 0x%08x => 0x%08x.\n"),

		this,

		dynamic_cast<abs_eap_base_timer_c *>(this)));

	EAP_TRACE_DATA_DEBUG(

		m_am_tools,

		EAP_TRACE_FLAGS_NEVER,

		(EAPL("eap_core_client_message_if_c::send_message()"),

		message->get_message_data(),

		message->get_message_data_length()));

	eap_status_e send_status = m_partner->send_data(

		message->get_message_data(),

		message->get_message_data_length());

	EAP_TRACE_END(m_am_tools, TRACE_FLAGS_DEFAULT);

	return EAP_STATUS_RETURN(m_am_tools, send_status);

}

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

EAP_FUNC_EXPORT eap_status_e eap_plugin_server_message_if_c::process_message_type_error(

	EAP_TEMPLATE_CONST eap_array_c<eap_tlv_header_c> * const parameters)

{

	eap_status_e status(eap_status_ok);

	eap_process_tlv_message_data_c message_data(m_am_tools);

	if (message_data.get_is_valid() == false)

	{

		EAP_TRACE_END(m_am_tools, TRACE_FLAGS_DEFAULT);

		return EAP_STATUS_RETURN(m_am_tools, eap_status_allocation_error);

	}

	// Error payload is the first in this case.

	status = message_data.read_parameter_data(parameters, eap_message_payload_index_function, eap_tlv_message_type_error, &m_error_code);

	if (status != eap_status_ok)

	{

		EAP_TRACE_END(m_am_tools, TRACE_FLAGS_DEFAULT);

		return EAP_STATUS_RETURN(m_am_tools, status);

	}

	// Fuction payload is the second in this case.

	status = message_data.read_parameter_data(parameters, eap_message_payload_index_first_parameter, &m_error_function);

	EAP_TRACE_END(m_am_tools, TRACE_FLAGS_DEFAULT);

	return EAP_STATUS_RETURN(m_am_tools, status);

}

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

EAP_FUNC_EXPORT eap_status_e eap_plugin_server_message_if_c::process_message(eap_process_tlv_message_data_c * const message)

{

	// Parses message data composed of Attribute-Value Pairs.

	EAP_TRACE_DATA_DEBUG(

		m_am_tools,

		EAP_TRACE_FLAGS_NEVER,

		(EAPL("eap_plugin_server_message_if_c::process_message()"),

		message->get_message_data(),

		message->get_message_data_length()));

	eap_array_c<eap_tlv_header_c> parameters(m_am_tools);

	eap_status_e status = message->parse_message_data(&parameters);

	if (status != eap_status_ok)

	{

		EAP_TRACE_END(m_am_tools, TRACE_FLAGS_DEFAULT);

		(void) send_error_message(

			status,

			eap_tlv_message_type_function_none);

		return EAP_STATUS_RETURN(m_am_tools, status);

	}

	if (parameters.get_object_count() == 0)

	{

		EAP_TRACE_END(m_am_tools, TRACE_FLAGS_DEFAULT);

		status = eap_status_illegal_parameter;

		(void) send_error_message(

			status,

			eap_tlv_message_type_function_none);

		return EAP_STATUS_RETURN(m_am_tools, status);

	}

	const eap_tlv_header_c * const function_header = parameters.get_object(eap_message_payload_index_function);

	if (function_header == 0

		|| (function_header->get_type() != eap_tlv_message_type_error

			&& function_header->get_type() != eap_tlv_message_type_function))

	{

		EAP_TRACE_END(m_am_tools, TRACE_FLAGS_DEFAULT);

		status = eap_status_illegal_parameter;

		(void) send_error_message(

			status,

			eap_tlv_message_type_function_none);

		return EAP_STATUS_RETURN(m_am_tools, status);

	}

	if (function_header->get_type() == eap_tlv_message_type_error)

	{

		status = process_message_type_error(&parameters);

	}

	else // function_header->get_type() == eap_tlv_message_type_function

	{

		eap_tlv_message_type_function_e function(eap_tlv_message_type_function_none);

		status = message->get_parameter_data(function_header, &function);

		if (status != eap_status_ok)

		{

			EAP_TRACE_END(m_am_tools, TRACE_FLAGS_DEFAULT);

			(void) send_error_message(

				status,

				eap_tlv_message_type_function_none);

			return EAP_STATUS_RETURN(m_am_tools, status);

		}

		switch(function)

		{

		case eap_tlv_message_type_function_plugin_get_configuration:

			status = get_configuration(&parameters);

			break;

		case eap_tlv_message_type_function_plugin_set_configuration:

			status = set_configuration(&parameters);

			break;

		case eap_tlv_message_type_function_plugin_copy_configuration:

			status = copy_configuration(&parameters);

			break;

		case eap_tlv_message_type_function_plugin_delete_configuration:

			status = delete_configuration(&parameters);

			break;

		case eap_tlv_message_type_function_plugin_set_index:

			status = set_index(&parameters);

			break;

		case eap_tlv_message_type_function_plugin_get_type_info:

			status = get_type_info(&parameters);

			break;

		case eap_tlv_message_type_function_plugin_invoke_ui:

			status = invoke_ui(&parameters);

			break;

		default:

			EAP_TRACE_ERROR(

				m_am_tools,

				TRACE_FLAGS_DEFAULT,

				(EAPL("ERROR: process_data(): unknown function %d.\n"),

				 function));

			status = eap_status_illegal_parameter;

			EAP_ASSERT_ANYWAY_TOOLS(m_am_tools);

		};

		if (status != eap_status_ok

			&& status != eap_status_success

			&& status != eap_status_pending_request

			&& status != eap_status_completed_request

			&& status != eap_status_drop_packet_quietly)

		{

			(void) send_error_message(

				status,

				function);

		}

	}

	EAP_TRACE_END(m_am_tools, TRACE_FLAGS_DEFAULT);

	return EAP_STATUS_RETURN(m_am_tools, status);

}

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

/// Function receives the data message from lower layer.

/// Data is formatted to Attribute-Value Pairs.

/// Look at eap_tlv_header_c and eap_tlv_message_data_c.

EAP_FUNC_EXPORT eap_status_e eap_plugin_server_message_if_c::process_data(const void * const data, const u32_t length)

{

	EAP_TRACE_DATA_DEBUG(

		m_am_tools,

		EAP_TRACE_FLAGS_NEVER,

		(EAPL("eap_plugin_server_message_if_c::process_data()"),

		data,

		length));

	eap_status_e status(eap_status_process_general_error);

	{

		eap_process_tlv_message_data_c message(m_am_tools);

		if (message.get_is_valid() == false)

		{

			EAP_TRACE_END(m_am_tools, TRACE_FLAGS_DEFAULT);

			status = eap_status_allocation_error;

			(void) send_error_message(

				status,

				eap_tlv_message_type_function_none);

			return EAP_STATUS_RETURN(m_am_tools, status);

		}

		status = message.set_message_data(length, data);

		if (status != eap_status_ok)

		{

			EAP_TRACE_END(m_am_tools, TRACE_FLAGS_DEFAULT);

			(void) send_error_message(

				status,

				eap_tlv_message_type_function_none);

			return EAP_STATUS_RETURN(m_am_tools, status);

		}

		status = process_message(&message);

	}

	EAP_TRACE_END(m_am_tools, TRACE_FLAGS_DEFAULT);

	return EAP_STATUS_RETURN(m_am_tools, status);

}

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

//

EAP_FUNC_EXPORT void eap_plugin_server_message_if_c::set_is_valid()

{

	m_is_valid = true;

}

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

//

EAP_FUNC_EXPORT bool eap_plugin_server_message_if_c::get_is_valid()

{

	return m_is_valid;

}

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

//

EAP_FUNC_EXPORT eap_status_e eap_plugin_server_message_if_c::timer_expired(

	const u32_t id, void *data)

{

	EAP_UNREFERENCED_PARAMETER(id);

	EAP_UNREFERENCED_PARAMETER(data);

	EAP_TRACE_BEGIN(m_am_tools, TRACE_FLAGS_DEFAULT);

	EAP_TRACE_DEBUG(

		m_am_tools,

		(EAPL("TIMER: %s: [0x%08x]->eap_plugin_server_message_if_c::timer_expired(id 0x%02x, data 0x%08x).\n"),

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

		 this,

		 id,

		 data));

	return EAP_STATUS_RETURN(m_am_tools, eap_status_ok);

}

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

//

EAP_FUNC_EXPORT eap_status_e eap_plugin_server_message_if_c::timer_delete_data(

	const u32_t id, void *data)

{

	EAP_UNREFERENCED_PARAMETER(id);

	EAP_UNREFERENCED_PARAMETER(data);

	EAP_TRACE_BEGIN(m_am_tools, TRACE_FLAGS_DEFAULT);

	EAP_TRACE_DEBUG(

		m_am_tools,

		(EAPL("TIMER: %s: [0x%08x]->eap_plugin_server_message_if_c::timer_delete_data(id 0x%02x, data 0x%08x).\n"),

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

		this, id, data));