eapol/eapol_framework/wapi_common/src/wai_variable_data.cpp
changeset 17 8840d3e38314
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/eapol/eapol_framework/wapi_common/src/wai_variable_data.cpp	Fri Mar 19 09:29:58 2010 +0200
@@ -0,0 +1,1230 @@
+/*
+* ============================================================================
+*  Name        : ./accesssec/eapol/eapol_framework/wapi_common/src/wai_variable_data.cpp
+*  Part of     : WAPI / WAPI       *** Info from the SWAD
+*  Description : WAPI authentication
+*  Version     : %version: 20 % << Don't touch! Updated by Synergy at check-out.
+*
+*  Copyright © 2001-2009 Nokia.  All rights reserved.
+*  This material, including documentation and any related computer
+*  programs, is protected by copyright controlled by Nokia.  All
+*  rights are reserved.  Copying, including reproducing, storing,
+*  adapting or translating, any or all of this material requires the
+*  prior written consent of Nokia.  This material also contains
+*  confidential information which may not be disclosed to others
+*  without the prior written consent of Nokia.
+* ============================================================================
+* Template version: 4.1.1
+*/
+
+// This is enumeration of WAPI source code.
+#if defined(USE_EAP_MINIMUM_RELEASE_TRACES)
+	#undef EAP_FILE_NUMBER_ENUM
+	#define EAP_FILE_NUMBER_ENUM 710 
+	#undef EAP_FILE_NUMBER_DATE 
+	#define EAP_FILE_NUMBER_DATE 1127594498 
+#endif //#if defined(USE_EAP_MINIMUM_RELEASE_TRACES)
+
+
+#if defined(USE_WAPI_CORE)
+
+
+#include "eap_am_memory.h"
+#include "wai_message_payloads.h"
+#include "wai_message.h"
+#include "abs_eap_am_tools.h"
+#include "eap_tools.h"
+#include "eap_array_algorithms.h"
+#include "eap_automatic_variable.h"
+#include "eap_crypto_api.h"
+#include "wapi_strings.h"
+
+
+//--------------------------------------------------
+
+EAP_FUNC_EXPORT wai_variable_data_c::~wai_variable_data_c()
+{
+	delete get_next_payload_with_same_tlv_type();
+	set_next_payload_with_same_tlv_type(0);
+}
+
+//--------------------------------------------------
+
+EAP_FUNC_EXPORT wai_variable_data_c::wai_variable_data_c(
+	abs_eap_am_tools_c * const tools)
+	: m_am_tools(tools)
+	  , m_data(tools)
+	  , m_wai_tlv_header(tools, 0, 0ul)
+	  , m_ec_cs_tlv_header(tools, 0, 0ul)
+	  , m_payload_type(wai_payload_type_none)
+	  , m_next_payload_with_same_tlv_type(0)
+	  , m_is_valid(false)
+{
+	if (m_data.get_is_valid() == false)
+	{
+		return;
+	}
+
+	m_is_valid = true;
+}
+
+//--------------------------------------------------
+
+EAP_FUNC_EXPORT bool wai_variable_data_c::get_is_valid() const
+{
+	return m_is_valid;
+}
+
+//--------------------------------------------------
+
+EAP_FUNC_EXPORT bool wai_variable_data_c::get_is_valid_data() const
+{
+	return get_is_valid() && m_data.get_is_valid_data();
+}
+
+//--------------------------------------------------
+
+EAP_FUNC_EXPORT wai_payload_type_e wai_variable_data_c::convert_to_wai_payload_type(const wai_tlv_type_e tlv_type)
+{
+	switch(tlv_type)
+	{
+	case wai_tlv_type_signature_attribute:
+		return wai_payload_type_signature_attributes;
+	case wai_tlv_type_result_of_certificate_validation:
+		return wai_payload_type_result_of_certificate_verification;
+	case wai_tlv_type_identity_list:
+		return wai_payload_type_identity_list;
+	default:
+		return wai_payload_type_none;
+	};
+}
+
+//--------------------------------------------------
+
+EAP_FUNC_EXPORT wai_tlv_type_e wai_variable_data_c::convert_to_wai_tlv_type(const wai_payload_type_e payload_type)
+{
+	switch(payload_type)
+	{
+	case wai_payload_type_signature_attributes:
+		return wai_tlv_type_signature_attribute;
+	case wai_payload_type_result_of_certificate_verification:
+		return wai_tlv_type_result_of_certificate_validation;
+	case wai_payload_type_identity_list:
+		return wai_tlv_type_identity_list;
+	case wai_payload_type_echd_parameter:
+		return wai_tlv_type_echd_parameter;
+	default:
+		return wai_tlv_type_none;
+	};
+}
+
+//--------------------------------------------------
+
+EAP_FUNC_EXPORT wai_certificate_identifier_e wai_variable_data_c::convert_to_wai_certificate_identifier(const wai_payload_type_e payload_type)
+{
+	switch(payload_type)
+	{
+	case wai_payload_type_certificate:
+	case wai_payload_type_identity:
+		return wai_certificate_identifier_x_509_v3;
+	default:
+		return wai_certificate_identifier_none;
+	};
+}
+
+//--------------------------------------------------
+
+EAP_FUNC_EXPORT ec_cs_tlv_type_e wai_variable_data_c::convert_to_ec_cs_tlv_type(const wai_payload_type_e payload_type)
+{
+	switch(payload_type)
+	{
+	case wai_payload_type_certificate:
+	case wai_payload_type_identity:
+		return static_cast<ec_cs_tlv_type_e>(convert_to_wai_certificate_identifier(payload_type));
+	default:
+		return static_cast<ec_cs_tlv_type_e>(payload_type);
+	};
+}
+
+//--------------------------------------------------
+
+eap_status_e wai_variable_data_c::set_header_buffer(
+	const wai_payload_type_e current_payload,
+	const bool write_header)
+{
+	if (m_data.get_is_valid_data() == false)
+	{
+		EAP_TRACE_END(m_am_tools, TRACE_FLAGS_DEFAULT);
+		return EAP_STATUS_RETURN(m_am_tools, eap_status_illegal_payload);
+	}
+
+	switch (get_type_class())
+	{
+	case wai_payload_type_size_ec_cs_tlv_header:
+		{
+			m_ec_cs_tlv_header.set_header_buffer(
+				m_data.get_buffer(m_data.get_buffer_length()),
+				m_data.get_buffer_length());
+
+			if (write_header == true)
+			{
+				eap_status_e status = m_ec_cs_tlv_header.reset_header();
+				if (status != eap_status_ok)
+				{
+					EAP_TRACE_END(m_am_tools, TRACE_FLAGS_DEFAULT);
+					return EAP_STATUS_RETURN(m_am_tools, status);
+				}
+
+				status = m_ec_cs_tlv_header.set_type(convert_to_ec_cs_tlv_type(current_payload));
+				if (status != eap_status_ok)
+				{
+					EAP_TRACE_END(m_am_tools, TRACE_FLAGS_DEFAULT);
+					return EAP_STATUS_RETURN(m_am_tools, status);
+				}
+			}
+		}
+		break;
+	case wai_payload_type_size_wai_tlv_header:
+		{
+			m_wai_tlv_header.set_header_buffer(
+				m_data.get_buffer(m_data.get_buffer_length()),
+				m_data.get_buffer_length());
+
+			if (current_payload == wai_payload_type_optional)
+			{
+				m_payload_type = convert_to_wai_payload_type(m_wai_tlv_header.get_type());
+			}
+			else if (write_header == true)
+			{
+				eap_status_e status = m_wai_tlv_header.reset_header();
+				if (status != eap_status_ok)
+				{
+					EAP_TRACE_END(m_am_tools, TRACE_FLAGS_DEFAULT);
+					return EAP_STATUS_RETURN(m_am_tools, status);
+				}
+
+				status = m_wai_tlv_header.set_type(convert_to_wai_tlv_type(current_payload));
+				if (status != eap_status_ok)
+				{
+					EAP_TRACE_END(m_am_tools, TRACE_FLAGS_DEFAULT);
+					return EAP_STATUS_RETURN(m_am_tools, status);
+				}
+			}
+		}
+		break;
+	default:
+		;
+	}; // switch
+
+	EAP_TRACE_END(m_am_tools, TRACE_FLAGS_DEFAULT);
+	return EAP_STATUS_RETURN(m_am_tools, eap_status_ok);
+}
+
+//--------------------------------------------------
+
+eap_status_e wai_variable_data_c::set_header_buffer(
+	const wai_payload_type_e current_payload,
+	const bool write_header,
+	const u32_t data_length)
+{
+	eap_status_e status = set_header_buffer(
+		current_payload,
+		write_header);
+	if (status != eap_status_ok)
+	{
+		EAP_TRACE_END(m_am_tools, TRACE_FLAGS_DEFAULT);
+		return EAP_STATUS_RETURN(m_am_tools, status);
+	}
+
+	switch (get_type_class())
+	{
+	case wai_payload_type_size_ec_cs_tlv_header:
+		m_ec_cs_tlv_header.set_data_length(static_cast<u16_t>(data_length));
+		break;
+	case wai_payload_type_size_wai_tlv_header:
+		m_wai_tlv_header.set_data_length(static_cast<u16_t>(data_length));
+		break;
+	case wai_payload_type_size_1_octet_length_field:
+		{
+			u8_t * data = m_data.get_data(sizeof(u8_t));
+			if (data == 0)
+			{
+				EAP_TRACE_END(m_am_tools, TRACE_FLAGS_DEFAULT);
+				return EAP_STATUS_RETURN(m_am_tools, eap_status_allocation_error);
+			}
+
+			if (data_length > 0xff)
+			{
+				EAP_TRACE_END(m_am_tools, TRACE_FLAGS_DEFAULT);
+				return EAP_STATUS_RETURN(m_am_tools, eap_status_buffer_too_short);
+			}
+
+			data[0ul] = static_cast<u8_t>(data_length);
+
+		}
+		break;
+	default:
+		;
+	}; // switch
+
+	EAP_TRACE_END(m_am_tools, TRACE_FLAGS_DEFAULT);
+	return EAP_STATUS_RETURN(m_am_tools, status);
+}
+
+//--------------------------------------------------
+
+EAP_FUNC_EXPORT eap_status_e wai_variable_data_c::init_header(
+	const wai_payload_type_e current_payload,
+	const u32_t default_buffer_length)
+{
+	if (default_buffer_length > 0xffff)
+	{
+		EAP_TRACE_END(m_am_tools, TRACE_FLAGS_DEFAULT);
+		return EAP_STATUS_RETURN(m_am_tools, eap_status_illegal_parameter);
+	}
+
+	eap_status_e status = set_payload_type(current_payload);
+	if (status != eap_status_ok)
+	{
+		EAP_TRACE_END(m_am_tools, TRACE_FLAGS_DEFAULT);
+		return EAP_STATUS_RETURN(m_am_tools, status);
+	}
+
+	status = m_data.set_buffer_length(
+		default_buffer_length);
+	if (status != eap_status_ok)
+	{
+		EAP_TRACE_END(m_am_tools, TRACE_FLAGS_DEFAULT);
+		return EAP_STATUS_RETURN(m_am_tools, status);
+	}
+
+
+	switch (get_type_class())
+	{
+	case wai_payload_type_size_wai_tlv_header:
+		{
+			status = m_data.set_data_length(
+				wai_tlv_header_c::get_header_length());
+			if (status != eap_status_ok)
+			{
+				EAP_TRACE_END(m_am_tools, TRACE_FLAGS_DEFAULT);
+				return EAP_STATUS_RETURN(m_am_tools, status);
+			}
+
+			status = m_wai_tlv_header.reset();
+			if (status != eap_status_ok)
+			{
+				EAP_TRACE_END(m_am_tools, TRACE_FLAGS_DEFAULT);
+				return EAP_STATUS_RETURN(m_am_tools, status);
+			}
+		}
+		break;
+	case wai_payload_type_size_ec_cs_tlv_header:
+		{
+			status = m_data.set_data_length(
+				ec_cs_tlv_header_c::get_header_length());
+			if (status != eap_status_ok)
+			{
+				EAP_TRACE_END(m_am_tools, TRACE_FLAGS_DEFAULT);
+				return EAP_STATUS_RETURN(m_am_tools, status);
+			}
+
+			status = m_ec_cs_tlv_header.reset();
+			if (status != eap_status_ok)
+			{
+				EAP_TRACE_END(m_am_tools, TRACE_FLAGS_DEFAULT);
+				return EAP_STATUS_RETURN(m_am_tools, status);
+			}
+		}
+		break;
+	case wai_payload_type_size_1_octet_length_field:
+		{
+			status = m_data.set_data_length(sizeof(u8_t));
+			if (status != eap_status_ok)
+			{
+				EAP_TRACE_END(m_am_tools, TRACE_FLAGS_DEFAULT);
+				return EAP_STATUS_RETURN(m_am_tools, status);
+			}
+
+			u8_t * data = m_data.get_data(sizeof(u8_t));
+			if (data == 0)
+			{
+				EAP_TRACE_END(m_am_tools, TRACE_FLAGS_DEFAULT);
+				return EAP_STATUS_RETURN(m_am_tools, eap_status_allocation_error);
+			}
+
+			data[0ul] = 0u;
+
+		}
+		break;
+	default:
+		break;
+	}; // switch
+
+
+	status = set_header_buffer(current_payload, true);
+	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, status);
+}
+
+//--------------------------------------------------
+
+EAP_FUNC_EXPORT eap_status_e wai_variable_data_c::reset()
+{
+	(void) m_data.reset();
+
+	return EAP_STATUS_RETURN(m_am_tools, eap_status_ok);
+}
+
+//--------------------------------------------------
+
+EAP_FUNC_EXPORT eap_status_e wai_variable_data_c::set_buffer(
+	const wai_payload_type_e current_payload,
+	const void * const buffer,
+	const u32_t buffer_length)
+{
+	if (buffer_length > 0xffff)
+	{
+		EAP_TRACE_END(m_am_tools, TRACE_FLAGS_DEFAULT);
+		return EAP_STATUS_RETURN(m_am_tools, eap_status_illegal_parameter);
+	}
+
+	eap_status_e status = m_data.set_buffer(
+		buffer,
+		buffer_length,
+		false,
+		false);
+	if (status != eap_status_ok)
+	{
+		EAP_TRACE_END(m_am_tools, TRACE_FLAGS_DEFAULT);
+		return EAP_STATUS_RETURN(m_am_tools, status);
+	}
+
+	status = set_payload_type(current_payload);
+	if (status != eap_status_ok)
+	{
+		EAP_TRACE_END(m_am_tools, TRACE_FLAGS_DEFAULT);
+		return EAP_STATUS_RETURN(m_am_tools, status);
+	}
+
+	status = m_wai_tlv_header.reset();
+	if (status != eap_status_ok)
+	{
+		EAP_TRACE_END(m_am_tools, TRACE_FLAGS_DEFAULT);
+		return EAP_STATUS_RETURN(m_am_tools, status);
+	}
+
+	status = m_ec_cs_tlv_header.reset();
+	if (status != eap_status_ok)
+	{
+		EAP_TRACE_END(m_am_tools, TRACE_FLAGS_DEFAULT);
+		return EAP_STATUS_RETURN(m_am_tools, status);
+	}
+
+	status = set_header_buffer(current_payload, false);
+	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, status);
+}
+
+//--------------------------------------------------
+
+u32_t wai_variable_data_c::get_header_length(
+	const wai_payload_type_e current_payload) const
+{
+	switch (get_type_class(current_payload))
+	{
+	case wai_payload_type_size_ec_cs_tlv_header:
+		{
+			return m_ec_cs_tlv_header.get_header_length();
+		}
+	case wai_payload_type_size_wai_tlv_header:
+		{
+			return m_wai_tlv_header.get_header_length();
+		}
+	case wai_payload_type_size_1_octet_length_field:
+		{
+			return sizeof(u8_t);
+		}
+	case wai_payload_type_size_wie:
+		{
+			return WIE_HEADER_LENGTH;
+		}
+	default:
+		{
+			return 0ul;
+		}
+	}; // switch
+}
+
+//--------------------------------------------------
+
+EAP_FUNC_EXPORT eap_status_e wai_variable_data_c::create(
+	const wai_payload_type_e current_payload,
+	const void * const buffer, // Buffer includes only data.
+	const u32_t buffer_length) // Buffer_length includes only data.
+{
+	eap_status_e status = init_header(
+		current_payload,
+		get_header_length(current_payload) + buffer_length);
+	if (status != eap_status_ok)
+	{
+		EAP_TRACE_END(m_am_tools, TRACE_FLAGS_DEFAULT);
+		return EAP_STATUS_RETURN(m_am_tools, status);
+	}
+
+	status = m_data.add_data(buffer, buffer_length);
+	if (status != eap_status_ok)
+	{
+		EAP_TRACE_END(m_am_tools, TRACE_FLAGS_DEFAULT);
+		return EAP_STATUS_RETURN(m_am_tools, status);
+	}
+
+	switch (get_type_class())
+	{
+	case wai_payload_type_size_ec_cs_tlv_header:
+		m_ec_cs_tlv_header.set_data_length(static_cast<u16_t>(buffer_length));
+		break;
+	case wai_payload_type_size_wai_tlv_header:
+		m_wai_tlv_header.set_data_length(static_cast<u16_t>(buffer_length));
+		break;
+	case wai_payload_type_size_1_octet_length_field:
+		{
+			u8_t * data = m_data.get_data(sizeof(u8_t));
+			if (data == 0)
+			{
+				EAP_TRACE_END(m_am_tools, TRACE_FLAGS_DEFAULT);
+				return EAP_STATUS_RETURN(m_am_tools, eap_status_allocation_error);
+			}
+
+			if (buffer_length > 0xff)
+			{
+				EAP_TRACE_END(m_am_tools, TRACE_FLAGS_DEFAULT);
+				return EAP_STATUS_RETURN(m_am_tools, eap_status_buffer_too_short);
+			}
+
+			data[0ul] = static_cast<u8_t>(buffer_length);
+
+		}
+		break;
+	default:
+		;
+	}; // switch
+
+	EAP_TRACE_END(m_am_tools, TRACE_FLAGS_DEFAULT);
+	return EAP_STATUS_RETURN(m_am_tools, status);
+}
+
+//--------------------------------------------------
+
+EAP_FUNC_EXPORT eap_status_e wai_variable_data_c::create(
+	const wai_payload_type_e current_payload,
+	const eap_variable_data_c * const buffer) // Buffer includes only data.
+{
+	eap_status_e status = create(
+		current_payload,
+		buffer->get_data(),
+		buffer->get_data_length());
+	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, status);
+}
+
+//--------------------------------------------------
+
+EAP_FUNC_EXPORT eap_status_e wai_variable_data_c::set_copy_of_buffer(
+	const wai_payload_type_e current_payload,
+	const void * const buffer, // Buffer does include header and data.
+	const u32_t buffer_length) // Buffer_length does include header and data.
+{
+	eap_status_e status = init_header(
+		current_payload,
+		buffer_length);
+	if (status != eap_status_ok)
+	{
+		EAP_TRACE_END(m_am_tools, TRACE_FLAGS_DEFAULT);
+		return EAP_STATUS_RETURN(m_am_tools, status);
+	}
+
+	status = m_data.set_copy_of_buffer(buffer, buffer_length);
+	if (status != eap_status_ok)
+	{
+		EAP_TRACE_END(m_am_tools, TRACE_FLAGS_DEFAULT);
+		return EAP_STATUS_RETURN(m_am_tools, status);
+	}
+
+	switch (get_type_class())
+	{
+	case wai_payload_type_size_ec_cs_tlv_header:
+		m_ec_cs_tlv_header.set_data_length(static_cast<u16_t>(buffer_length - get_type_header_length()));
+		break;
+	case wai_payload_type_size_wai_tlv_header:
+		m_wai_tlv_header.set_data_length(static_cast<u16_t>(buffer_length - get_type_header_length()));
+		break;
+	case wai_payload_type_size_1_octet_length_field:
+		{
+			u8_t * data = m_data.get_data(sizeof(u8_t));
+			if (data == 0)
+			{
+				EAP_TRACE_END(m_am_tools, TRACE_FLAGS_DEFAULT);
+				return EAP_STATUS_RETURN(m_am_tools, eap_status_allocation_error);
+			}
+
+			if (buffer_length > 0xff)
+			{
+				EAP_TRACE_END(m_am_tools, TRACE_FLAGS_DEFAULT);
+				return EAP_STATUS_RETURN(m_am_tools, eap_status_buffer_too_short);
+			}
+
+			data[0ul] = static_cast<u8_t>(buffer_length - get_type_header_length());
+
+		}
+		break;
+	default:
+		;
+	}; // switch
+
+	EAP_TRACE_END(m_am_tools, TRACE_FLAGS_DEFAULT);
+	return EAP_STATUS_RETURN(m_am_tools, status);
+}
+
+//--------------------------------------------------
+
+EAP_FUNC_EXPORT eap_status_e wai_variable_data_c::set_copy_of_buffer(
+	const wai_payload_type_e current_payload,
+	const eap_variable_data_c * const buffer)
+{
+	eap_status_e status = set_copy_of_buffer(
+		current_payload,
+		buffer->get_data(),
+		buffer->get_data_length());
+	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, status);
+}
+
+//--------------------------------------------------
+
+EAP_FUNC_EXPORT eap_status_e wai_variable_data_c::set_copy_of_buffer(
+	const wai_variable_data_c * const source)
+{
+	eap_status_e status = set_copy_of_buffer(
+			source->get_payload_type(),
+			source->get_data(source->get_data_length()),
+			source->get_data_length());
+
+	if (status != eap_status_ok)
+	{
+		EAP_TRACE_END(m_am_tools, TRACE_FLAGS_DEFAULT);
+		return EAP_STATUS_RETURN(m_am_tools, status);
+	}
+
+	delete get_next_payload_with_same_tlv_type();
+	set_next_payload_with_same_tlv_type(0);
+
+	wai_variable_data_c * previous = this;
+
+	const wai_variable_data_c * next = source->get_next_payload_with_same_tlv_type();
+
+	while (next != 0)
+	{
+		// Copy the next payload in a list too.
+		wai_variable_data_c * const new_payload = next->copy();
+		if (new_payload == 0)
+		{
+			EAP_TRACE_END(m_am_tools, TRACE_FLAGS_DEFAULT);
+			return EAP_STATUS_RETURN(m_am_tools, eap_status_allocation_error);
+		}
+
+		previous->set_next_payload_with_same_tlv_type(new_payload);
+
+		previous = new_payload;
+
+		next = next->get_next_payload_with_same_tlv_type();
+	}
+
+	EAP_TRACE_END(m_am_tools, TRACE_FLAGS_DEFAULT);
+	return EAP_STATUS_RETURN(m_am_tools, status);
+}
+
+//--------------------------------------------------
+
+EAP_FUNC_EXPORT eap_status_e wai_variable_data_c::add_data(
+	const wai_payload_type_e new_payload,
+	const void * const buffer,
+	const u32_t buffer_length)
+{
+	const wai_payload_type_e current_payload = get_payload_type();
+
+	if (new_payload != current_payload)
+	{
+		EAP_TRACE_END(m_am_tools, TRACE_FLAGS_DEFAULT);
+		return EAP_STATUS_RETURN(m_am_tools, eap_status_illegal_payload);
+	}
+
+	const u32_t type_data_length(get_type_data_length());
+
+	eap_status_e status = m_data.add_data(
+		buffer,
+		buffer_length);
+	if (status != eap_status_ok)
+	{
+		EAP_TRACE_END(m_am_tools, TRACE_FLAGS_DEFAULT);
+		return EAP_STATUS_RETURN(m_am_tools, status);
+	}
+
+	status = set_header_buffer(current_payload, true, (type_data_length + buffer_length));
+	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, status);
+}
+
+//--------------------------------------------------
+
+EAP_FUNC_EXPORT eap_status_e wai_variable_data_c::add_data(
+	const wai_payload_type_e new_payload,
+	const eap_variable_data_c * const buffer)
+{
+	eap_status_e status = add_data(
+		new_payload,
+		buffer->get_data(),
+		buffer->get_data_length());
+	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, status);
+}
+
+//--------------------------------------------------
+
+EAP_FUNC_EXPORT eap_status_e wai_variable_data_c::add_data(
+	const wai_variable_data_c * const data)
+{
+	eap_status_e status = add_data(
+		data->get_payload_type(),
+		data->get_full_tlv_buffer()->get_data(),
+		data->get_full_tlv_buffer()->get_data_length());
+	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, status);
+}
+
+//--------------------------------------------------
+
+wai_payload_type_size_e wai_variable_data_c::get_type_class(const wai_payload_type_e current_payload) const
+{
+	if (current_payload <= wai_payload_type_last_known
+		&& current_payload == wai_payload_type_to_class_map[current_payload].m_type)
+	{
+		return wai_payload_type_to_class_map[current_payload].m_size;
+	}
+	else
+	{
+		return wai_payload_type_size_none;
+	}
+}
+
+//--------------------------------------------------
+
+EAP_FUNC_EXPORT wai_payload_type_size_e wai_variable_data_c::get_type_class() const
+{
+	const wai_payload_type_e current_payload(get_payload_type());
+
+	return get_type_class(current_payload);
+}
+
+//--------------------------------------------------
+
+EAP_FUNC_EXPORT u32_t wai_variable_data_c::get_type_data_length() const
+{
+	switch (get_type_class())
+	{
+	case wai_payload_type_size_ec_cs_tlv_header:
+		{
+			if (m_data.get_data_length() >= m_ec_cs_tlv_header.get_header_length())
+			{
+				return m_ec_cs_tlv_header.get_data_length();
+			}
+			else
+			{
+				return 0ul;
+			}
+		}
+	case wai_payload_type_size_wai_tlv_header:
+		{
+			if (m_data.get_data_length() >= m_wai_tlv_header.get_header_length())
+			{
+				return m_wai_tlv_header.get_data_length();
+			}
+			else
+			{
+				return 0ul;
+			}
+		}
+	case wai_payload_type_size_1_octet_length_field:
+		{
+			if (m_data.get_data_length() >= sizeof(u8_t))
+			{
+				const u8_t * data = m_data.get_data(sizeof(u8_t));
+				return data[0ul];
+			}
+			else
+			{
+				return 0ul;
+			}
+		}
+	case wai_payload_type_size_wie:
+		{
+			if (m_data.get_data_length() >= WIE_HEADER_LENGTH)
+			{
+				const u8_t * data = m_data.get_data(WIE_HEADER_LENGTH);
+				return data[1ul];
+			}
+			else
+			{
+				return 0ul;
+			}
+		}
+	default:
+		{
+			if (m_data.get_data_length() >= static_cast<u32_t>(get_type_class()))
+			{
+				return get_type_class();
+			}
+			else
+			{
+				return 0ul;
+			}
+		}
+	}; // switch
+}
+
+//--------------------------------------------------
+
+EAP_FUNC_EXPORT u32_t wai_variable_data_c::get_type_header_length() const
+{
+	switch (get_type_class())
+	{
+	case wai_payload_type_size_ec_cs_tlv_header:
+		{
+			if (m_data.get_data_length() >= m_ec_cs_tlv_header.get_header_length())
+			{
+				return m_ec_cs_tlv_header.get_header_length();
+			}
+			else
+			{
+				return 0ul;
+			}
+		}
+	case wai_payload_type_size_wai_tlv_header:
+		{
+			if (m_data.get_data_length() >= m_wai_tlv_header.get_header_length())
+			{
+				return m_wai_tlv_header.get_header_length();
+			}
+			else
+			{
+				return 0ul;
+			}
+		}
+	case wai_payload_type_size_1_octet_length_field:
+		{
+			if (m_data.get_data_length() >= sizeof(u8_t))
+			{
+				return sizeof(u8_t);
+			}
+			else
+			{
+				return 0ul;
+			}
+		}
+	case wai_payload_type_size_wie:
+		{
+			if (m_data.get_data_length() >= WIE_HEADER_LENGTH)
+			{
+				return WIE_HEADER_LENGTH;
+			}
+			else
+			{
+				return 0ul;
+			}
+		}
+	default:
+		{
+			return 0ul;
+		}
+	}; // switch
+}
+
+//--------------------------------------------------
+
+EAP_FUNC_EXPORT u8_t * wai_variable_data_c::get_type_data_offset(
+	const u32_t offset,
+	const u32_t data_length) const
+{
+	return m_data.get_data_offset(get_type_header_length()+offset, data_length);
+}
+
+//--------------------------------------------------
+
+EAP_FUNC_EXPORT u8_t * wai_variable_data_c::get_type_data(
+	const u32_t data_length) const
+{
+	return get_type_data_offset(0ul, data_length);
+}
+
+//--------------------------------------------------
+
+EAP_FUNC_EXPORT u32_t wai_variable_data_c::get_data_length() const
+{
+	return get_type_header_length() + get_type_data_length();
+}
+
+//--------------------------------------------------
+
+EAP_FUNC_EXPORT u8_t * wai_variable_data_c::get_data(
+	const u32_t data_length) const
+{
+#if 1
+
+	return m_data.get_data(data_length);
+
+#else
+
+	switch (get_type_class())
+	{
+	case wai_payload_type_size_ec_cs_tlv_header:
+		{
+			return m_ec_cs_tlv_header.get_data(data_length);
+		}
+	case wai_payload_type_size_wai_tlv_header:
+		{
+			return m_wai_tlv_header.get_data(data_length);
+		}
+	case wai_payload_type_size_1_octet_length_field:
+		{
+			if (m_data.get_data_length() >= (sizeof(u8_t) + data_length))
+			{
+				return m_data.get_data_offset(sizeof(u8_t), data_length);
+			}
+			else
+			{
+				return 0;
+			}
+		}
+	case wai_payload_type_size_wie:
+		{
+			if (m_data.get_data_length() >= (WIE_HEADER_LENGTH + data_length))
+			{
+				return m_data.get_data(data_length);
+			}
+			else
+			{
+				return 0;
+			}
+		}
+	case wai_payload_type_size_1_octet:
+	case wai_payload_type_size_12_octets:
+	case wai_payload_type_size_16_octets:
+	case wai_payload_type_size_20_octets:
+	case wai_payload_type_size_32_octets:
+		{
+			return m_data.get_data(data_length);
+		}
+	default:
+		{
+			return 0;
+		}
+	}; // switch
+
+#endif
+
+}
+
+//--------------------------------------------------
+
+EAP_FUNC_EXPORT u8_t * wai_variable_data_c::get_data_offset(const u32_t offset, const u32_t data_length) const
+{
+
+#if 1
+
+	return m_data.get_data_offset(offset, data_length);
+
+#else
+
+	switch (get_type_class())
+	{
+	case wai_payload_type_size_ec_cs_tlv_header:
+		{
+			return m_ec_cs_tlv_header.get_data_offset(offset, data_length);
+		}
+	case wai_payload_type_size_wai_tlv_header:
+		{
+			return m_wai_tlv_header.get_data_offset(offset, data_length);
+		}
+	case wai_payload_type_size_1_octet_length_field:
+		{
+			if (m_data.get_data_length() >= (sizeof(u8_t) + offset + data_length))
+			{
+				return m_data.get_data_offset(offset + sizeof(u8_t), data_length);
+			}
+			else
+			{
+				return 0;
+			}
+		}
+	case wai_payload_type_size_wie:
+		{
+			if (m_data.get_data_length() >= (WIE_HEADER_LENGTH + offset + data_length))
+			{
+				return m_data.get_data_offset(offset + WIE_HEADER_LENGTH, data_length);
+			}
+			else
+			{
+				return 0;
+			}
+		}
+	case wai_payload_type_size_1_octet:
+	case wai_payload_type_size_12_octets:
+	case wai_payload_type_size_16_octets:
+	case wai_payload_type_size_20_octets:
+	case wai_payload_type_size_32_octets:
+		{
+			return m_data.get_data_offset(offset, data_length);
+		}
+	default:
+		{
+			return 0;
+		}
+	}; // switch
+
+#endif
+
+}
+
+//--------------------------------------------------
+
+EAP_FUNC_EXPORT const eap_variable_data_c * wai_variable_data_c::get_full_tlv_buffer() const
+{
+	return &m_data;
+}
+
+//--------------------------------------------------
+
+EAP_FUNC_EXPORT eap_variable_data_c * wai_variable_data_c::get_writable_full_tlv_buffer()
+{
+	return &m_data;
+}
+
+//--------------------------------------------------
+
+EAP_FUNC_EXPORT const wai_tlv_header_c * wai_variable_data_c::get_wai_tlv_header() const
+{
+	if (get_type_class() == wai_payload_type_size_wai_tlv_header)
+	{
+		return &m_wai_tlv_header;
+	}
+	else
+	{
+		return 0;
+	}
+}
+
+//--------------------------------------------------
+
+EAP_FUNC_EXPORT const ec_cs_tlv_header_c * wai_variable_data_c::get_ec_cs_tlv_header() const
+{
+	if (get_type_class() == wai_payload_type_size_ec_cs_tlv_header)
+	{
+		return &m_ec_cs_tlv_header;
+	}
+	else
+	{
+		return 0;
+	}
+}
+
+//--------------------------------------------------
+
+EAP_FUNC_EXPORT wai_payload_type_e wai_variable_data_c::get_payload_type() const
+{
+	return m_payload_type;
+}
+
+//--------------------------------------------------
+
+EAP_FUNC_EXPORT eap_status_e wai_variable_data_c::set_payload_type(
+	const wai_payload_type_e payload_type)
+{
+	eap_status_e status(eap_status_ok);
+
+	m_payload_type = payload_type;
+
+	EAP_TRACE_END(m_am_tools, TRACE_FLAGS_DEFAULT);
+	return EAP_STATUS_RETURN(m_am_tools, status);
+}
+
+//--------------------------------------------------
+
+EAP_FUNC_EXPORT void wai_variable_data_c::set_next_payload_with_same_tlv_type(
+	wai_variable_data_c * const tlv)
+{
+	m_next_payload_with_same_tlv_type = tlv;
+}
+
+//--------------------------------------------------
+
+EAP_FUNC_EXPORT wai_variable_data_c * wai_variable_data_c::get_next_payload_with_same_tlv_type() const
+{
+	return m_next_payload_with_same_tlv_type;
+}
+
+//--------------------------------------------------
+
+EAP_FUNC_EXPORT void wai_variable_data_c::add_next_payload_with_same_tlv_type(
+	wai_variable_data_c * const tlv)
+{
+	wai_variable_data_c *payload = get_next_payload_with_same_tlv_type();
+	wai_variable_data_c *prev_payload = this;
+
+	while (payload != 0)
+	{
+		prev_payload = payload;
+		payload = payload->get_next_payload_with_same_tlv_type();
+	}
+
+	if (prev_payload != 0)
+	{
+		prev_payload->set_next_payload_with_same_tlv_type(tlv);
+	}
+}
+
+//--------------------------------------------------
+
+EAP_FUNC_EXPORT wai_variable_data_c * wai_variable_data_c::copy() const
+{
+	wai_variable_data_c * new_data = new wai_variable_data_c(m_am_tools);
+
+	if (new_data != 0)
+	{
+		eap_status_e status = new_data->set_copy_of_buffer(
+			get_payload_type(),
+			get_data(get_data_length()),
+			get_data_length());
+		if (status != eap_status_ok)
+		{
+			delete new_data;
+			EAP_TRACE_END(m_am_tools, TRACE_FLAGS_DEFAULT);
+			(void) EAP_STATUS_RETURN(m_am_tools, eap_status_allocation_error);
+			return 0;
+		}
+	}
+
+	return new_data;
+}
+
+//--------------------------------------------------
+
+EAP_FUNC_EXPORT  void wai_variable_data_c::object_increase_reference_count()
+{
+}
+
+//--------------------------------------------------
+
+EAP_FUNC_EXPORT i32_t wai_variable_data_c::compare(const wai_variable_data_c * right) const
+{
+	if (get_payload_type() != right->get_payload_type())
+	{
+		return -1;
+	}
+	else if (get_data_length() != right->get_data_length())
+	{
+		return -1;
+	}
+	else
+	{
+		// Compares the (possible) header and data.
+		return m_am_tools->memcmp(get_data(get_data_length()), right->get_data(right->get_data_length()), get_data_length());
+	}
+}
+
+//--------------------------------------------------
+
+EAP_FUNC_EXPORT eap_const_string wai_variable_data_c::get_wai_payload_type_string() const
+{
+	return wapi_strings_c::get_wai_payload_type_string(get_payload_type());
+}
+
+//--------------------------------------------------
+
+void wai_variable_data_c::wai_variable_data_trace(abs_eap_am_tools_c * const tools, eap_format_string prefix, const wai_variable_data_c * const wai_data, const bool when_true_is_client)
+{
+	EAP_TRACE_DEBUG(
+		tools,
+		TRACE_FLAGS_DEFAULT|TRACE_TEST_VECTORS,
+		(EAPL("v v v v v v v v v v v v v v v v v v v v v v v v v v v v v v v v v v v v v v v v v v v v \n")));
+
+	EAP_TRACE_DEBUG(
+		tools,
+		TRACE_FLAGS_DEFAULT|TRACE_TEST_VECTORS,
+		(EAPL("- %s %s (0x%08x): TLV type 0x%04x=%s, data length 0x%04x.\n"),
+		prefix,
+		((when_true_is_client) == true ? "client" : "server"),
+		(wai_data)->get_data((wai_data)->get_data_length()),
+		(wai_data)->get_payload_type(),
+		wapi_strings_c::get_wai_payload_type_string((wai_data)->get_payload_type()),
+		(wai_data)->get_data_length()));
+
+	EAP_TRACE_DATA_DEBUG(
+		tools,
+		TRACE_FLAGS_DEFAULT|TRACE_TEST_VECTORS,
+		(wapi_strings_c::get_wai_payload_type_string((wai_data)->get_payload_type()),
+		(wai_data)->get_data((wai_data)->get_data_length()),
+		(wai_data)->get_data_length()));
+
+	EAP_TRACE_DEBUG(
+		tools,
+		TRACE_FLAGS_DEFAULT|TRACE_TEST_VECTORS,
+		(EAPL("^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ \n")));
+}
+
+//--------------------------------------------------
+
+#endif //#if defined(USE_WAPI_CORE)
+
+// End.