/*

* 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 33 

	#undef EAP_FILE_NUMBER_DATE 

	#define EAP_FILE_NUMBER_DATE 1127594498 

#endif //#if defined(USE_EAP_MINIMUM_RELEASE_TRACES)

#include "eapol_header.h"

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

//

EAP_FUNC_EXPORT eapol_header_base_c::~eapol_header_base_c()

{

}

// 

EAP_FUNC_EXPORT eapol_header_base_c::eapol_header_base_c(

	abs_eap_am_tools_c * const tools,

	void * const header_buffer,

	const u32_t header_buffer_length)

	: eap_general_header_base_c(tools, header_buffer, header_buffer_length)

	, m_am_tools(tools)

{

}

EAP_FUNC_EXPORT eapol_protocol_version_e eapol_header_base_c::get_version() const

{

	const u8_t * const version_data = get_header_offset(m_version_offset, sizeof(u8_t));

	if (version_data != 0)

	{

		return static_cast<eapol_protocol_version_e>(*version_data);

	}

	else

	{

		return eapol_protocol_version_none;

	}

}

EAP_FUNC_EXPORT eapol_packet_type_e eapol_header_base_c::get_packet_type() const

{

	const u8_t * const type_data = get_header_offset(m_packet_type_offset, sizeof(u8_t));

	if (type_data != 0)

	{

		return static_cast<eapol_packet_type_e>(*type_data);

	}

	else

	{

		return eapol_packet_type_no_type;

	}

}

EAP_FUNC_EXPORT u16_t eapol_header_base_c::get_data_length() const

{

	const u8_t * const length_data = get_header_offset(m_data_length_offset, sizeof(u16_t));

	if (length_data != 0)

	{

		return eap_read_u16_t_network_order(length_data, sizeof(u16_t));

	}

	else

	{

		return 0ul;

	}

}

EAP_FUNC_EXPORT u32_t eapol_header_base_c::get_header_length()

{

	return m_data_offset;

}

EAP_FUNC_EXPORT u8_t * eapol_header_base_c::get_data(const u32_t data_length) const

{

	return get_header_offset(m_data_offset, data_length); // Data begins after the header.

}

EAP_FUNC_EXPORT void eapol_header_base_c::set_version(const eapol_protocol_version_e p_version)

{

	u8_t * const version_data = get_header_offset(m_version_offset, sizeof(u8_t));

	EAP_ASSERT(version_data != 0);

	*version_data = static_cast<u8_t>(p_version);

}

EAP_FUNC_EXPORT void eapol_header_base_c::set_packet_type(const eapol_packet_type_e p_packet_type)

{

	u8_t * const type_data = get_header_offset(m_packet_type_offset, sizeof(u8_t));

	EAP_ASSERT(type_data != 0);

	*type_data = static_cast<u8_t>(p_packet_type);

}

EAP_FUNC_EXPORT void eapol_header_base_c::set_data_length(const u16_t p_data_length)

{

	u8_t * const data_length = get_header_offset(m_data_length_offset, sizeof(u16_t));

	EAP_ASSERT(data_length != 0);

	data_length[0] = static_cast<u8_t>((p_data_length & 0xff00) >> 8);

	data_length[1] = static_cast<u8_t>(p_data_length & 0x00ff);

}

EAP_FUNC_EXPORT eap_const_string eapol_header_base_c::get_type_string() const

{

#if defined(USE_EAP_TRACE_STRINGS)

	eapol_packet_type_e type = get_packet_type();

	EAP_IF_RETURN_STRING(type, eapol_packet_type_eap)

	else EAP_IF_RETURN_STRING(type, eapol_packet_type_start)

	else EAP_IF_RETURN_STRING(type, eapol_packet_type_logoff)

	else EAP_IF_RETURN_STRING(type, eapol_packet_type_key)

	else EAP_IF_RETURN_STRING(type, eapol_packet_type_enc_asf_alert)

	else EAP_IF_RETURN_STRING(type, eapol_packet_type_SAE_KE)

	else EAP_IF_RETURN_STRING(type, eapol_packet_type_SAE_EAP)

	else EAP_IF_RETURN_STRING(type, eapol_packet_type_SAE_START)

	else EAP_IF_RETURN_STRING(type, eapol_packet_type_SAE_LOGOFF)

	else EAP_IF_RETURN_STRING(type, eapol_packet_type_no_type)

	else

#endif // #if defined(USE_EAP_TRACE_STRINGS)

	{

		return EAPL("Unknown EAPOL-type");

	}

}

EAP_FUNC_EXPORT eap_status_e eapol_header_base_c::check_header() const

{

	eap_status_e status = eap_status_process_general_error;

	if (get_version() == eapol_protocol_version_none)

	{

		status = eap_status_wrong_eapol_version;

		EAP_TRACE_DEBUG(

			m_am_tools,

			TRACE_FLAGS_DEFAULT,

			(EAPL("ERROR: eapol_header_base_c::check_header(), illegal version field 0x%02x, at least 0x%02x was expected, eap_status_e %d\n"),

			 get_version(),

			 eapol_protocol_version_none+1,

			 status));

	}

	else if (/* get_packet_type() < eapol_packet_type_eap // This is always false.

				|| */

		eapol_packet_type_SAE_LOGOFF < get_packet_type())

	{

		status = eap_status_wrong_eapol_type;

		EAP_TRACE_DEBUG(

			m_am_tools,

			TRACE_FLAGS_DEFAULT,

			(EAPL("ERROR: eapol_header_base_c::check_header(), illegal type field 0x%02x, eap_status_e %d\n"),

			 get_packet_type(), status));

	}

	else

	{

		status = eap_status_ok;

	}

	return EAP_STATUS_RETURN(m_am_tools, status);

}

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

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

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

// 

EAP_FUNC_EXPORT eapol_header_rd_c::~eapol_header_rd_c()

{

}

// 

EAP_FUNC_EXPORT eapol_header_rd_c::eapol_header_rd_c(

	abs_eap_am_tools_c * const tools,

	u8_t * const header_buffer,

	const u32_t header_buffer_length)

	: eapol_header_base_c(tools, header_buffer, header_buffer_length)

	, m_am_tools(tools)

{

}

EAP_FUNC_EXPORT u8_t * eapol_header_rd_c::get_eap_header() const

{

	return get_data(eap_header_base_c::get_header_length());

}

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

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

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

// 

EAP_FUNC_EXPORT eapol_header_wr_c::~eapol_header_wr_c()

{

}

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

// 

EAP_FUNC_EXPORT eapol_header_wr_c::eapol_header_wr_c(

	abs_eap_am_tools_c * const tools,

	u8_t * const header_buffer,

	const u32_t header_buffer_length)

	: eapol_header_base_c(tools, header_buffer, header_buffer_length)

	, m_am_tools(tools)

{

}

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

EAP_FUNC_EXPORT u8_t * eapol_header_wr_c::get_eap_header()

{

	return get_data(eap_header_base_c::get_header_length());

}

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

EAP_FUNC_EXPORT void eapol_header_wr_c::reset_header(u16_t buffer_length)

{

	set_version(eapol_protocol_version_none);

	set_packet_type(eapol_packet_type_eap);

	EAP_ASSERT(buffer_length >= get_header_length());

	set_data_length(static_cast<u16_t>(buffer_length-get_header_length()));

}

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

// End.