--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/eapol/eapol_framework/eapol_common/include/eap_tlv_header.h	Thu Dec 17 08:47:43 2009 +0200
@@ -0,0 +1,162 @@
+/*
+* 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.
+*
+*/
+
+
+
+
+#if !defined(_EAP_TLV_HEADER_H_)
+#define _EAP_TLV_HEADER_H_
+
+#include "eap_am_types.h"
+#include "eap_tools.h"
+#include "eap_general_header_base.h"
+
+/** @file */
+
+
+typedef u32_t eap_tlv_type_t;
+
+const eap_tlv_type_t eap_tlv_type_none = 0ul;
+
+//----------------------------------------------------------------------------
+
+
+/// This class defines header of Attribute-Value Pairs.
+/**
+ * Here is a figure of header of Attribute-Value Pairs.
+ * Value data follows eap_tlv_header_c.
+ * @code
+ *  EAP-TLV-header:
+ *  0                   1                   2                   3   
+ *  0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * |                              Type                             |
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * |                             Length                            |
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * |                              Value...
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * @endcode
+ * 
+ * @code
+ * The fields of this header are:
+ * 32-bits Type;                   This is a type of value.
+ * 32-bits value length (Length);  This is a length field, the length (in bytes) of the following value.
+ * @endcode
+ * 
+ */
+class EAP_EXPORT eap_tlv_header_c
+: public eap_general_header_base_c
+{
+private:
+	//--------------------------------------------------
+
+	abs_eap_am_tools_c * const m_am_tools;
+
+	//--------------------------------------------------
+protected:
+	//--------------------------------------------------
+
+	/// This is enumeration of offsets to data fields.
+	enum offsets
+	{
+		m_type_offset = 0ul,                           ///< This is offset to fags and tlv type 32-bit field.
+		m_length_offset = m_type_offset+sizeof(u32_t), ///< This is offset to length 32-bit field.
+		m_data_offset = m_length_offset+sizeof(u32_t), ///< This is offset to data field.
+	};
+
+	//--------------------------------------------------
+public:
+	//--------------------------------------------------
+
+	/**
+	 * The destructor of the eap_tlv_header_c class does nothing.
+	 */
+	EAP_FUNC_IMPORT virtual ~eap_tlv_header_c();
+
+	/**
+	 * The constructor of the eap_tlv_header_c class simply initializes the attributes.
+	 */
+	EAP_FUNC_IMPORT eap_tlv_header_c(
+		abs_eap_am_tools_c * const tools,
+		void * const header_begin,
+		const u32_t header_buffer_length);
+
+	/**
+	 * This function returns the type.
+	 */
+	EAP_FUNC_IMPORT eap_tlv_type_t get_type() const;
+
+	/**
+	 * This function returns the data length of value.
+	 */
+	EAP_FUNC_IMPORT u32_t get_value_length() const;
+
+	/**
+	 * This function returns the header length of TLV.
+	 */
+	EAP_FUNC_IMPORT static u32_t get_header_length();
+
+	/**
+	 * This function returns pointer to the offset of value.
+	 * @param offset is the offset of queried data in bytes.
+	 * @param contignuous_bytes is the length of queried data in bytes.
+	 */
+	EAP_FUNC_IMPORT u8_t * get_value_offset(const u32_t offset, const u32_t contignuous_bytes) const;
+
+
+	/**
+	 * This function returns pointer to begin of value.
+	 * @param contignuous_bytes is the length of queried data in bytes.
+	 */
+	EAP_FUNC_IMPORT u8_t * get_value(const u32_t contignuous_bytes) const;
+
+
+	/**
+	 * This function checks the header is valid.
+	 */
+	EAP_FUNC_IMPORT eap_status_e check_header() const;
+
+	/**
+	 * This function returns the type.
+	 */
+	EAP_FUNC_IMPORT eap_status_e set_type(const eap_tlv_type_t type);
+
+	/**
+	 * This function sets the value length.
+	 */
+	EAP_FUNC_IMPORT eap_status_e set_value_length(const u32_t value_length);
+
+	/**
+	 * This function resets the TLV header.
+	 */
+	EAP_FUNC_IMPORT eap_status_e reset_header(
+		const eap_tlv_type_t type,
+		const u32_t value_length);
+
+	// 
+	//--------------------------------------------------
+}; // class eap_tlv_header_c
+
+
+//--------------------------------------------------
+
+#endif //#if !defined(_EAP_TLV_HEADER_H_)
+
+
+
+// End.