eapol/eapol_framework/eapol_common/include/eap_general_header_base.h
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     1 /*
       
     2 * Copyright (c) 2001-2006 Nokia Corporation and/or its subsidiary(-ies).
       
     3 * All rights reserved.
       
     4 * This component and the accompanying materials are made available
       
     5 * under the terms of the License "Eclipse Public License v1.0"
       
     6 * which accompanies this distribution, and is available
       
     7 * at the URL "http://www.eclipse.org/legal/epl-v10.html".
       
     8 *
       
     9 * Initial Contributors:
       
    10 * Nokia Corporation - initial contribution.
       
    11 *
       
    12 * Contributors:
       
    13 *
       
    14 * Description:  EAP and WLAN authentication protocols.
       
    15 *
       
    16 */
       
    17 
       
    18 
       
    19 
       
    20 
       
    21 
       
    22 #if !defined(_EAP_GENERAL_HEADER_BASE_H_)
       
    23 #define _EAP_GENERAL_HEADER_BASE_H_
       
    24 
       
    25 
       
    26 #include "eap_am_assert.h"
       
    27 #include "eap_am_tools.h"
       
    28 #include "eap_tools.h"
       
    29 
       
    30 /** @file */
       
    31 
       
    32 /** This is general base class defining the view to packet header.
       
    33  */
       
    34 class EAP_EXPORT eap_general_header_base_c
       
    35 {
       
    36 private:
       
    37 	//--------------------------------------------------
       
    38 
       
    39 	/// This is pointer to the tools class.
       
    40 	abs_eap_am_tools_c * const m_am_tools;
       
    41 
       
    42 	/// This is pointer to the header buffer.
       
    43 	u8_t * m_header_buffer;
       
    44 
       
    45 	/// This is length of the header buffer.
       
    46 	u32_t m_header_buffer_length;
       
    47 
       
    48 #if defined(USE_EAP_ERROR_TESTS)
       
    49 	/// This flag tells whether protocol detected error on packet.
       
    50 	/// This is used in error testing.
       
    51 	/// Value of this attribute is initialized to true.
       
    52 	/// Protocol should change attribute value to false
       
    53 	/// after it accepts this packet.
       
    54 	bool m_error_detected;
       
    55 #endif //#if defined(USE_EAP_ERROR_TESTS)
       
    56 
       
    57 	//--------------------------------------------------
       
    58 protected:
       
    59 	//--------------------------------------------------
       
    60 
       
    61 	//--------------------------------------------------
       
    62 public:
       
    63 	//--------------------------------------------------
       
    64 
       
    65 	/// Destructor does nothing special.
       
    66 	/// NOTE the header buffer is not deleted here.
       
    67 	EAP_FUNC_IMPORT virtual ~eap_general_header_base_c();
       
    68 
       
    69 	/// Constructor does nothing special.
       
    70 	/// The tools parameter is pointer to tools object.
       
    71 	/// The header_buffer parameter is pointer to buffer of the packet including header and data.
       
    72 	/// The header_buffer_length parameter is length of the header_buffer.
       
    73 	EAP_FUNC_IMPORT eap_general_header_base_c(
       
    74 		abs_eap_am_tools_c * const tools,
       
    75 		void * const header_buffer,
       
    76 		const u32_t header_buffer_length);
       
    77 
       
    78 	/// This function returns the pointer to the offset of the data of the packet.
       
    79 	EAP_FUNC_IMPORT u8_t * get_header_offset(const u32_t offset, const u32_t data_length) const;
       
    80 
       
    81 	/// This function returns the pointer to the data of the packet.
       
    82 	EAP_FUNC_IMPORT u8_t * get_header_buffer(const u32_t data_length) const;
       
    83 
       
    84 	/// This function sets the buffer of the packet.
       
    85 	/// The header_buffer parameter is pointer to buffer of the packet including header and data.
       
    86 	/// The header_buffer_length parameter is length of the header_buffer.
       
    87 	EAP_FUNC_IMPORT void set_header_buffer(u8_t * const header_buffer, const u32_t header_buffer_length);
       
    88 
       
    89 	/// This function returns the length of the header buffer.
       
    90 	EAP_FUNC_IMPORT u32_t get_header_buffer_length() const;
       
    91 
       
    92 	/// This function returns validity of the object.
       
    93 	EAP_FUNC_IMPORT bool get_is_valid() const;
       
    94 
       
    95 	/// This function returns pointer to the tools object.
       
    96 	EAP_FUNC_IMPORT abs_eap_am_tools_c * get_am_tools() const;
       
    97 
       
    98 	/// This function checks the validity of derived header.
       
    99 	virtual eap_status_e check_header() const = 0;
       
   100 
       
   101 
       
   102 #if defined(USE_EAP_ERROR_TESTS)
       
   103 
       
   104 	EAP_FUNC_IMPORT void set_error_detected(const bool error_detected);
       
   105 
       
   106 	EAP_FUNC_IMPORT bool get_error_detected();
       
   107 
       
   108 #endif //#if defined(USE_EAP_ERROR_TESTS)
       
   109 
       
   110 	// 
       
   111 	//--------------------------------------------------
       
   112 }; // class eap_general_header_base_c
       
   113 
       
   114 
       
   115 #if defined(USE_EAP_ERROR_TESTS)
       
   116 
       
   117 	#define EAP_GENERAL_HEADER_COPY_ERROR_PARAMETERS(destination, source) \
       
   118 		{ \
       
   119 			(destination)->set_error_detected((source)->get_error_detected()); \
       
   120 		}
       
   121 
       
   122 	#define EAP_GENERAL_HEADER_SET_ERROR_DETECTED(packet, true_or_false) \
       
   123 		{ \
       
   124 			(packet)->set_error_detected((true_or_false)); \
       
   125 		}
       
   126 
       
   127 #else
       
   128 
       
   129 	#define EAP_GENERAL_HEADER_COPY_ERROR_PARAMETERS(destination, source)
       
   130 
       
   131 	#define EAP_GENERAL_HEADER_SET_ERROR_DETECTED(packet, true_or_false)
       
   132 
       
   133 #endif //#if defined(USE_EAP_ERROR_TESTS)
       
   134 
       
   135 
       
   136 #endif //#if !defined(_EAP_GENERAL_HEADER_BASE_H_)
       
   137 
       
   138 //--------------------------------------------------
       
   139 
       
   140 
       
   141 
       
   142 // End.