/*

* 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 116 

	#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_state_notification.h"

#include "eap_type_securid.h"

#include "eap_type_securid_types.h"

#include "eap_buffer.h"

static const u8_t EAP_SECURID_PASSCODE_STRING[] = "passcode";

#ifdef EAP_SECURID_SERVER

eap_status_e eap_type_securid_c::server_packet_process(

	eap_header_wr_c * const received_eap,

	const u32_t eap_packet_length)

{	

	EAP_TRACE_BEGIN(m_am_tools, TRACE_FLAGS_DEFAULT);

	eap_status_e status = eap_status_header_corrupted;

	if (eap_packet_length < received_eap->get_length())

	{

		EAP_TRACE_END(m_am_tools, TRACE_FLAGS_DEFAULT);

		return EAP_STATUS_RETURN(m_am_tools, eap_status_drop_packet_quietly);

	}

	if (received_eap->get_type() == eap_type_identity)

	{

		m_identifier = static_cast<u8_t> (received_eap->get_identifier() + 1);

		// Send request

		const u8_t * const message = EAP_SECURID_PASSCODE_STRING;

		u32_t message_length = m_am_tools->strlen(reinterpret_cast<eap_const_string>(message));

		u32_t packet_length = eap_header_base_c::get_type_data_start_offset(m_use_eap_expanded_type)

			+ message_length; // Remove null termination

		eap_buf_chain_wr_c * packet = create_send_packet(packet_length);

		if (!packet)

		{

			EAP_TRACE_END(m_am_tools, TRACE_FLAGS_DEFAULT);

			return EAP_STATUS_RETURN(m_am_tools, eap_status_allocation_error);

		}

		eap_header_base_c eap_header(

			m_am_tools,

			packet->get_data_offset(m_offset, packet_length),

			packet_length);

		if (eap_header.get_is_valid() == false)

		{

			delete packet;

			EAP_TRACE_END(m_am_tools, TRACE_FLAGS_DEFAULT);

			return EAP_STATUS_RETURN(m_am_tools, eap_status_illegal_parameter);

		}

		eap_header.set_code(eap_code_request);

		eap_header.set_identifier(++m_identifier);

		eap_header.set_length(

			static_cast<u16_t>(packet_length),

			m_use_eap_expanded_type);

		eap_header.set_type(

			m_eap_type,

			m_use_eap_expanded_type);

		u8_t * type_data = const_cast<u8_t *> (eap_header.get_type_data_offset(0, eap_header.get_type_data_length()));

		if (type_data == 0)

		{

			delete packet;

			EAP_TRACE_END(m_am_tools, TRACE_FLAGS_DEFAULT);

			return EAP_STATUS_RETURN(m_am_tools, eap_status_allocation_error);

		}

		m_am_tools->memmove(type_data, message, message_length);

		eap_status_e status = packet_send(packet, packet_length);

		delete packet;

		EAP_TRACE_END(m_am_tools, TRACE_FLAGS_DEFAULT);

		return EAP_STATUS_RETURN(m_am_tools, status);

	}

	else if (received_eap->get_type() == eap_type_securid)

	{

		// Verify passcode response.

		u8_t * type_data = const_cast<u8_t *>(received_eap->get_type_data(received_eap->get_type_data_length()));

		if (type_data == 0)

		{

			EAP_TRACE_END(m_am_tools, TRACE_FLAGS_DEFAULT);

			return EAP_STATUS_RETURN(m_am_tools, eap_status_allocation_error);

		}

		if (received_eap->get_type_data_length() != m_pincode.get_data_length()

			|| m_am_tools->memcmp(

				type_data,

				m_pincode.get_data(m_pincode.get_data_length()),

				m_pincode.get_data_length()) != 0)

		{

			EAP_TRACE_END(m_am_tools, TRACE_FLAGS_DEFAULT);

			return EAP_STATUS_RETURN(m_am_tools, eap_status_authentication_failure);

		}

	}

	else if (received_eap->get_type() == eap_type_generic_token_card)

	{

		// Verify passcode response.

		u8_t * type_data = const_cast<u8_t *>(received_eap->get_type_data(received_eap->get_type_data_length()));

		if (type_data == 0)

		{

			EAP_TRACE_END(m_am_tools, TRACE_FLAGS_DEFAULT);

			return EAP_STATUS_RETURN(m_am_tools, eap_status_allocation_error);

		}

#if defined(USE_FAST_EAP_TYPE)

		if (m_use_EAP_FAST_response == true)

		{

			const u32_t passcode_offset(EAP_FAST_EAP_GTC_RESPONSE_PREFIX_LENGTH + m_identity.get_data_length() + EAP_FAST_EAP_GTC_RESPONSE_SEPARATOR_LENGTH);

			if (received_eap->get_type_data_length() < passcode_offset+m_passcode.get_data_length())

			{

				EAP_TRACE_END(m_am_tools, TRACE_FLAGS_DEFAULT);

				return EAP_STATUS_RETURN(m_am_tools, eap_status_too_short_message);

			}

			type_data += passcode_offset;

			if (m_am_tools->memcmp(

					type_data,

					m_passcode.get_data(m_passcode.get_data_length()),

					m_passcode.get_data_length()) != 0)

			{

				EAP_TRACE_END(m_am_tools, TRACE_FLAGS_DEFAULT);

				return EAP_STATUS_RETURN(m_am_tools, eap_status_authentication_failure);

			}

		}

		else

#endif //#if defined(USE_FAST_EAP_TYPE)

		{

			if (received_eap->get_type_data_length() != m_passcode.get_data_length()

				|| m_am_tools->memcmp(

					type_data,

					m_passcode.get_data(m_passcode.get_data_length()),

					m_passcode.get_data_length()) != 0)

			{

				EAP_TRACE_END(m_am_tools, TRACE_FLAGS_DEFAULT);

				return EAP_STATUS_RETURN(m_am_tools, eap_status_authentication_failure);

			}

		}

	}

	else

	{

		EAP_TRACE_END(m_am_tools, TRACE_FLAGS_DEFAULT);

		return EAP_STATUS_RETURN(m_am_tools, eap_status_authentication_failure);

	}

	m_identifier++;

	status = finish_successful_authentication();

	EAP_TRACE_END(m_am_tools, TRACE_FLAGS_DEFAULT);

	return EAP_STATUS_RETURN(m_am_tools, status);

}

#endif //#ifdef EAP_SECURID_SERVER

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

// End.