/*
* 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.
*
*/
/*
* %version: %
*/
#if !defined(_EAPOL_RSNA_KEY_DATA_GTK_HEADER_H_)
#define _EAPOL_RSNA_KEY_DATA_GTK_HEADER_H_
#include "eapol_header.h"
#include "eap_general_header_base.h"
#include "eapol_key_header.h"
#include "eap_am_export.h"
// Start: added by script change_export_macros.sh.
#if defined(EAP_NO_EXPORT_EAPOL_RSNA_KEY_DATA_GTK_HEADER_H)
#define EAP_CLASS_VISIBILITY_EAPOL_RSNA_KEY_DATA_GTK_HEADER_H EAP_NONSHARABLE
#define EAP_FUNC_VISIBILITY_EAPOL_RSNA_KEY_DATA_GTK_HEADER_H
#define EAP_C_FUNC_VISIBILITY_EAPOL_RSNA_KEY_DATA_GTK_HEADER_H
#define EAP_FUNC_EXPORT_EAPOL_RSNA_KEY_DATA_GTK_HEADER_H
#define EAP_C_FUNC_EXPORT_EAPOL_RSNA_KEY_DATA_GTK_HEADER_H
#elif defined(EAP_EXPORT_EAPOL_RSNA_KEY_DATA_GTK_HEADER_H)
#define EAP_CLASS_VISIBILITY_EAPOL_RSNA_KEY_DATA_GTK_HEADER_H EAP_EXPORT
#define EAP_FUNC_VISIBILITY_EAPOL_RSNA_KEY_DATA_GTK_HEADER_H EAP_FUNC_EXPORT
#define EAP_C_FUNC_VISIBILITY_EAPOL_RSNA_KEY_DATA_GTK_HEADER_H EAP_C_FUNC_EXPORT
#define EAP_FUNC_EXPORT_EAPOL_RSNA_KEY_DATA_GTK_HEADER_H EAP_FUNC_EXPORT
#define EAP_C_FUNC_EXPORT_EAPOL_RSNA_KEY_DATA_GTK_HEADER_H EAP_C_FUNC_EXPORT
#else
#define EAP_CLASS_VISIBILITY_EAPOL_RSNA_KEY_DATA_GTK_HEADER_H EAP_IMPORT
#define EAP_FUNC_VISIBILITY_EAPOL_RSNA_KEY_DATA_GTK_HEADER_H EAP_FUNC_IMPORT
#define EAP_C_FUNC_VISIBILITY_EAPOL_RSNA_KEY_DATA_GTK_HEADER_H EAP_C_FUNC_IMPORT
#define EAP_FUNC_EXPORT_EAPOL_RSNA_KEY_DATA_GTK_HEADER_H
#define EAP_C_FUNC_EXPORT_EAPOL_RSNA_KEY_DATA_GTK_HEADER_H
#endif
// End: added by script change_export_macros.sh.
//------------------------------------------------------
/// This is base class of EAPOL RSNA key data GTK header.
/**
* @code
* 0 1 2 3 4 5 6 7
* +-------+-------+-------+-------+-------+-------+-------+-------+
* | Key ID | Tx | Reserved |
* +-------+-------+-------+-------+-------+-------+-------+-------+
* | Reserved |
* +-------+-------+-------+-------+-------+-------+-------+-------+
* | GTK (Length -6) Octets |
* +- -+
* | |
* +-------+-------+-------+-------+-------+-------+-------+-------+
* @endcode
*/
class EAP_CLASS_VISIBILITY_EAPOL_RSNA_KEY_DATA_GTK_HEADER_H eapol_rsna_key_data_gtk_header_c
: public eap_general_header_base_c
{
private:
//--------------------------------------------------
/// This is pointer to the tools class.
abs_eap_am_tools_c * const m_am_tools;
//--------------------------------------------------
public:
//--------------------------------------------------
enum eapol_rsna_key_data_gtk_header_constants_e
{
EAPOL_RSNA_KEY_DATA_FLAGS_FIELD_SIZE = sizeof(u8_t),
EAPOL_RSNA_KEY_DATA_RESERVED_FIELD_SIZE = sizeof(u8_t),
EAPOL_RSNA_KEY_DATA_INVALID_GTK_INDEX = 0xff,
};
//--------------------------------------------------
protected:
//--------------------------------------------------
enum offsets_e
{
m_offset_flags = 0ul,
m_offset_reserved = m_offset_flags + EAPOL_RSNA_KEY_DATA_FLAGS_FIELD_SIZE,
m_offset_gtk = m_offset_reserved + EAPOL_RSNA_KEY_DATA_RESERVED_FIELD_SIZE,
};
enum eapol_rsna_key_data_gtk_header_masks_e
{
EAPOL_RSNA_KEY_DATA_GTK_INDEX_MASK = 0x03,
EAPOL_RSNA_KEY_DATA_TX_MASK = 0x04,
EAPOL_RSNA_KEY_DATA_RESERVED_MASK = 0xf8,
};
enum eapol_rsna_key_data_gtk_header_shift_e
{
EAPOL_RSNA_KEY_DATA_GTK_INDEX_SHIFT = 0x00,
EAPOL_RSNA_KEY_DATA_TX_SHIFT = 0x02,
EAPOL_RSNA_KEY_DATA_RESERVED_SHIFT = 0x03,
};
//--------------------------------------------------
public:
//--------------------------------------------------
//
virtual ~eapol_rsna_key_data_gtk_header_c();
//
eapol_rsna_key_data_gtk_header_c(
abs_eap_am_tools_c * const tools,
void * const header_begin,
const u32_t header_buffer_length);
u8_t get_key_index() const;
bool get_tx_bit() const;
u8_t * get_gtk_offset(const u32_t offset, const u32_t contignuous_bytes) const;
/**
* This function returns pointer to the GTK.
* @param contignuous_bytes is the length of queried data in bytes.
*/
u8_t * get_gtk(const u32_t contignuous_bytes) const;
static u16_t get_header_length();
eap_status_e set_key_index(const u32_t index);
eap_status_e set_tx(const bool tx);
eap_status_e set_reserved_flag(const u32_t reserved);
eap_status_e set_reserved_field(const u32_t reserved);
eap_status_e check_header() const;
eap_status_e reset_header();
//
//--------------------------------------------------
}; // class eapol_rsna_key_data_gtk_header_c
#endif //#if !defined(_EAPOL_RSNA_KEY_DATA_HEADER_H_)
//------------------------------------------------------
// End.