/*

* 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 47 

	#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_am_export.h"

#include "abs_eap_core.h"

#include "eap_core.h"

#include "eap_base_type.h"

#include "eap_variable_data.h"

#include "abs_eap_base_timer.h"

#include "eap_core_retransmission.h"

#include "eap_buffer.h"

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

EAP_FUNC_EXPORT eap_core_retransmission_c::~eap_core_retransmission_c()

{

	EAP_TRACE_BEGIN(m_am_tools, TRACE_FLAGS_DEFAULT);

	if (m_send_network_id != 0)

	{

		delete m_send_network_id;

		m_send_network_id = 0;

	}

	if (m_sent_packet != 0)

	{

		delete m_sent_packet;

		m_sent_packet = 0;

	}

	EAP_TRACE_END(m_am_tools, TRACE_FLAGS_DEFAULT);

}

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

EAP_FUNC_EXPORT eap_core_retransmission_c::eap_core_retransmission_c(

	abs_eap_am_tools_c * const tools,

	const eap_am_network_id_c * const send_network_id,

	eap_buf_chain_wr_c * const sent_packet,

	const u32_t header_offset,

	const u32_t data_length,

	const u32_t retransmission_time,

	const u32_t retransmission_counter,

	const eap_code_value_e eap_code,

	const u8_t eap_identifier,

	const eap_type_value_e eap_type)

	: m_am_tools(tools)

	, m_send_network_id(send_network_id->copy())

	, m_sent_packet(sent_packet->copy())

	, m_header_offset(header_offset)

	, m_data_length(data_length)

	, m_is_valid(false)

	, m_retransmission_time(retransmission_time)

	, m_retransmission_counter(retransmission_counter)

	, m_eap_code(eap_code)

	, m_eap_identifier(eap_identifier)

	, m_eap_type(eap_type)

{

	EAP_TRACE_BEGIN(m_am_tools, TRACE_FLAGS_DEFAULT);

	if (m_send_network_id != 0

		&& m_sent_packet != 0

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

	{

		m_is_valid = true;

	}

	else

	{

		if (m_send_network_id != 0)

		{

			delete m_send_network_id;

			m_send_network_id = 0;

		}

		if (m_send_network_id != 0)

		{

			delete m_sent_packet;

			m_sent_packet = 0;

		}

	}

	EAP_TRACE_END(m_am_tools, TRACE_FLAGS_DEFAULT);

}

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

EAP_FUNC_EXPORT bool eap_core_retransmission_c::get_is_valid() const

{

	EAP_TRACE_BEGIN(m_am_tools, TRACE_FLAGS_DEFAULT);

	EAP_TRACE_END(m_am_tools, TRACE_FLAGS_DEFAULT);

	return m_is_valid;

}

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

EAP_FUNC_EXPORT u32_t eap_core_retransmission_c::get_next_retransmission_counter()

{

	EAP_TRACE_BEGIN(m_am_tools, TRACE_FLAGS_DEFAULT);

	EAP_TRACE_END(m_am_tools, TRACE_FLAGS_DEFAULT);

	return --m_retransmission_counter;

}

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

EAP_FUNC_EXPORT u32_t eap_core_retransmission_c::get_retransmission_counter() const

{

	EAP_TRACE_BEGIN(m_am_tools, TRACE_FLAGS_DEFAULT);

	EAP_TRACE_END(m_am_tools, TRACE_FLAGS_DEFAULT);

	return m_retransmission_counter;

}

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

EAP_FUNC_EXPORT u32_t eap_core_retransmission_c::get_next_retransmission_time()

{

	EAP_TRACE_BEGIN(m_am_tools, TRACE_FLAGS_DEFAULT);

	u32_t time = m_retransmission_time;

	u32_t jitter_data = 0ul;

	i32_t jitter = 0;

	eap_status_e status = m_am_tools->get_crypto()->get_rand_bytes(

		reinterpret_cast<u8_t *>(&jitter_data),

		sizeof(jitter_data));

	if (status != eap_status_ok)

	{

		jitter = 0;

	}

	else

	{

		// Jitter should be -m_retransmission_time/2 ... m_retransmission_time/2.

		jitter_data = (jitter_data % (m_retransmission_time));

		jitter = jitter_data - m_retransmission_time/2;

	}

	m_retransmission_time += (m_retransmission_time + jitter);

	EAP_TRACE_END(m_am_tools, TRACE_FLAGS_DEFAULT);

	return time;

}

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

EAP_FUNC_EXPORT eap_am_network_id_c *eap_core_retransmission_c::get_send_network_id()

{

	EAP_TRACE_BEGIN(m_am_tools, TRACE_FLAGS_DEFAULT);

	EAP_TRACE_END(m_am_tools, TRACE_FLAGS_DEFAULT);

	return m_send_network_id;

}

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

EAP_FUNC_EXPORT eap_buf_chain_wr_c * eap_core_retransmission_c::get_sent_packet() const

{

	EAP_TRACE_BEGIN(m_am_tools, TRACE_FLAGS_DEFAULT);

	EAP_TRACE_END(m_am_tools, TRACE_FLAGS_DEFAULT);

	return m_sent_packet;

}

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

EAP_FUNC_EXPORT u32_t eap_core_retransmission_c::get_header_offset() const

{

	EAP_TRACE_BEGIN(m_am_tools, TRACE_FLAGS_DEFAULT);

	EAP_TRACE_END(m_am_tools, TRACE_FLAGS_DEFAULT);

	return m_header_offset;

}

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

EAP_FUNC_EXPORT u32_t eap_core_retransmission_c::get_data_length() const

{

	EAP_TRACE_BEGIN(m_am_tools, TRACE_FLAGS_DEFAULT);

	EAP_TRACE_END(m_am_tools, TRACE_FLAGS_DEFAULT);

	return m_data_length;

}

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

EAP_FUNC_EXPORT u32_t eap_core_retransmission_c::get_buffer_size() const

{

	EAP_TRACE_BEGIN(m_am_tools, TRACE_FLAGS_DEFAULT);

	EAP_TRACE_END(m_am_tools, TRACE_FLAGS_DEFAULT);

	return m_sent_packet->get_buffer_length();

}

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

EAP_FUNC_EXPORT eap_code_value_e eap_core_retransmission_c::get_eap_code() const

{

	return m_eap_code;

}

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

EAP_FUNC_EXPORT u8_t eap_core_retransmission_c::get_eap_identifier() const

{

	return m_eap_identifier;

}

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

EAP_FUNC_EXPORT eap_type_value_e eap_core_retransmission_c::get_eap_type() const

{

	return m_eap_type;

}

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

// End.