author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
Mon, 18 Jan 2010 20:22:35 +0200 | |
changeset 2 | 1c7bc153c08e |
parent 0 | c8830336c852 |
child 18 | bad0cc58d154 |
permissions | -rw-r--r-- |
0
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/* |
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* Copyright (c) 2001-2006 Nokia Corporation and/or its subsidiary(-ies). |
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* All rights reserved. |
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* This component and the accompanying materials are made available |
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* under the terms of the License "Eclipse Public License v1.0" |
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* which accompanies this distribution, and is available |
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* at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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* |
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* Initial Contributors: |
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* Nokia Corporation - initial contribution. |
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* |
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* Contributors: |
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* |
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* Description: EAP and WLAN authentication protocols. |
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* |
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*/ |
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/* |
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* %version: 8 % |
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*/ |
0
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// This is enumeration of EAPOL source code. |
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#if defined(USE_EAP_MINIMUM_RELEASE_TRACES) |
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#undef EAP_FILE_NUMBER_ENUM |
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#define EAP_FILE_NUMBER_ENUM 132 |
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#undef EAP_FILE_NUMBER_DATE |
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#define EAP_FILE_NUMBER_DATE 1127594498 |
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#endif //#if defined(USE_EAP_MINIMUM_RELEASE_TRACES) |
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#include "tls_peap_tlv_header.h" |
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/** @file */ |
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/** |
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* The destructor of the tls_peap_tlv_header_c class does nothing. |
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*/ |
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tls_peap_tlv_header_c::~tls_peap_tlv_header_c() |
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{ |
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} |
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/** |
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* The constructor of the tls_peap_tlv_header_c class simply initializes the attributes. |
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*/ |
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tls_peap_tlv_header_c::tls_peap_tlv_header_c( |
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abs_eap_am_tools_c * const tools, |
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void * const header_begin, |
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const u32_t header_buffer_length) |
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: eap_general_header_base_c(tools, header_begin, header_buffer_length) |
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, m_am_tools(tools) |
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{ |
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} |
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/** |
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* This function returns the TLV type flag. |
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*/ |
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tls_peap_tlv_type_e tls_peap_tlv_header_c::get_flag_tlv_type() const |
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{ |
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const u8_t * const flag_tlv_type_data = get_header_offset(m_flags_and_tlv_type_offset, sizeof(u16_t)); |
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if (flag_tlv_type_data != 0) |
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{ |
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return static_cast<tls_peap_tlv_type_e>( |
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(static_cast<u16_t>( |
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flag_tlv_type_data[0] & ~(m_flag_mask_mandatory_tlv|m_flag_mask_reserved)) << 8) |
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| (static_cast<u16_t>(flag_tlv_type_data[1]))); |
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} |
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else |
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{ |
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return tls_peap_tlv_type_none; |
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} |
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} |
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|
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/** |
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* This function returns the TLV mandatory flag. |
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*/ |
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bool tls_peap_tlv_header_c::get_flag_mandatory_tlv() const |
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{ |
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const u8_t * const flag_tlv_type_data = get_header_offset(m_flags_and_tlv_type_offset, sizeof(u8_t)); |
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if (flag_tlv_type_data != 0) |
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{ |
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u8_t flag = static_cast<u8_t>(flag_tlv_type_data[0] & m_flag_mask_mandatory_tlv); |
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if (flag != 0) |
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{ |
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return true; |
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} |
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} |
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return false; |
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} |
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|
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/** |
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* This function returns the TLV reserved flag. |
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*/ |
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bool tls_peap_tlv_header_c::get_flag_reserved() const |
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{ |
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const u8_t * const flag_tlv_type_data = get_header_offset(m_flags_and_tlv_type_offset, sizeof(u8_t)); |
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if (flag_tlv_type_data != 0) |
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{ |
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u8_t flag = static_cast<u8_t>(flag_tlv_type_data[0] & m_flag_mask_reserved); |
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if (flag != 0) |
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{ |
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return true; |
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} |
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105 |
} |
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106 |
return false; |
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} |
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108 |
|
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109 |
/** |
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110 |
* This function returns the data length of TLV. |
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111 |
*/ |
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112 |
u16_t tls_peap_tlv_header_c::get_data_length() const |
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113 |
{ |
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const u8_t * const length_data = get_header_offset(m_length_offset, sizeof(u16_t)); |
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if (length_data != 0) |
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116 |
{ |
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return eap_read_u16_t_network_order(length_data, sizeof(u16_t)); |
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} |
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119 |
else |
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120 |
{ |
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return 0ul; |
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} |
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123 |
} |
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124 |
|
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125 |
/** |
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* This function returns the header length of TLV. |
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*/ |
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u32_t tls_peap_tlv_header_c::get_header_length() |
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129 |
{ |
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return m_data_offset; |
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} |
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132 |
|
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133 |
/** |
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* This function returns pointer to the offset of data of TLV. |
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* @param offset is the offset of queried data in bytes. |
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* @param contignuous_bytes is the length of queried data in bytes. |
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137 |
*/ |
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138 |
u8_t * tls_peap_tlv_header_c::get_data_offset(const u32_t offset, const u32_t contignuous_bytes) const |
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139 |
{ |
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EAP_UNREFERENCED_PARAMETER(m_am_tools); |
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141 |
|
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142 |
u32_t data_length = get_data_length(); // Here is removed optional TLS message length. |
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|
143 |
|
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if (data_length >= offset+contignuous_bytes) |
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145 |
{ |
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146 |
u8_t * const data = get_header_offset(m_data_offset, offset+contignuous_bytes); |
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if (data != 0) |
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148 |
{ |
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return &data[offset]; |
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150 |
} |
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151 |
else |
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152 |
{ |
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153 |
return 0; |
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154 |
} |
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155 |
} |
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156 |
else |
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|
157 |
{ |
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158 |
EAP_ASSERT_ALWAYS(data_length >= offset+contignuous_bytes); |
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|
159 |
} |
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160 |
return 0; |
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161 |
} |
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|
162 |
|
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|
163 |
|
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|
164 |
/** |
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|
165 |
* This function returns pointer to the offset of data of TLV. |
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166 |
* @param contignuous_bytes is the length of queried data in bytes. |
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167 |
*/ |
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168 |
u8_t * tls_peap_tlv_header_c::get_data(const u32_t contignuous_bytes) const |
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|
169 |
{ |
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170 |
return get_data_offset(0u, contignuous_bytes); |
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|
171 |
} |
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|
172 |
|
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|
173 |
|
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|
174 |
/** |
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|
175 |
* This function return pointer to the next TLV header in the same buffer. |
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|
176 |
*/ |
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|
177 |
u8_t * tls_peap_tlv_header_c::get_next_header() const |
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|
178 |
{ |
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|
179 |
if (get_header_buffer_length() >= 2ul*get_header_length()+get_data_length()) |
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|
180 |
{ |
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|
181 |
return get_data_offset(get_data_length(), get_header_length()); |
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|
182 |
} |
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|
183 |
else |
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|
184 |
{ |
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|
185 |
return 0; |
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|
186 |
} |
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|
187 |
} |
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|
188 |
|
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|
189 |
|
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|
190 |
/** |
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|
191 |
* This function checks the header is valid. |
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|
192 |
*/ |
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|
193 |
eap_status_e tls_peap_tlv_header_c::check_header() const |
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|
194 |
{ |
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|
195 |
if (get_flag_tlv_type() != tls_peap_tlv_type_result |
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|
196 |
&& get_flag_tlv_type() != tls_peap_tlv_type_nak |
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|
197 |
&& get_flag_tlv_type() != tls_peap_tlv_type_crypto_binding |
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|
198 |
&& get_flag_tlv_type() != tls_peap_tlv_eap_payload |
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|
199 |
&& get_flag_tlv_type() != tls_peap_tlv_type_intermediate_result) |
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|
200 |
{ |
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|
201 |
return EAP_STATUS_RETURN(m_am_tools, eap_status_header_corrupted); |
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|
202 |
} |
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|
203 |
else if (get_flag_reserved() != 0) |
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|
204 |
{ |
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|
205 |
return EAP_STATUS_RETURN(m_am_tools, eap_status_header_corrupted); |
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|
206 |
} |
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|
207 |
return EAP_STATUS_RETURN(m_am_tools, eap_status_ok); |
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|
208 |
} |
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|
209 |
|
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|
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/** |
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* This function returns debug strings of the TLV type. |
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*/ |
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eap_const_string tls_peap_tlv_header_c::get_tlv_type_string() const |
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{ |
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#if defined(USE_EAP_TRACE_STRINGS) |
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const tls_peap_tlv_type_e protocol = get_flag_tlv_type(); |
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|
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EAP_IF_RETURN_STRING(protocol, tls_peap_tlv_type_none) |
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else EAP_IF_RETURN_STRING(protocol, tls_peap_tlv_type_result) |
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else EAP_IF_RETURN_STRING(protocol, tls_peap_tlv_type_nak) |
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else EAP_IF_RETURN_STRING(protocol, tls_peap_tlv_type_crypto_binding) |
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else EAP_IF_RETURN_STRING(protocol, tls_peap_tlv_eap_payload) |
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else EAP_IF_RETURN_STRING(protocol, tls_peap_tlv_type_intermediate_result) |
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else |
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#endif // #if defined(USE_EAP_TRACE_STRINGS) |
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{ |
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return EAPL("Unknown TLV type"); |
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} |
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} |
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|
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/** |
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* This function sets the TLV type flag. |
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*/ |
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void tls_peap_tlv_header_c::set_flag_tlv_type(tls_peap_tlv_type_e type) |
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{ |
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u8_t * const flag_tlv_type_data = get_header_offset(m_flags_and_tlv_type_offset, sizeof(u16_t)); |
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EAP_ASSERT(flag_tlv_type_data != 0); |
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flag_tlv_type_data[0] = static_cast<u8_t>( |
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flag_tlv_type_data[0] & (m_flag_mask_mandatory_tlv|m_flag_mask_reserved) |
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| ((type & 0xff00) >> 8) & ~(m_flag_mask_mandatory_tlv|m_flag_mask_reserved)); |
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flag_tlv_type_data[1] = static_cast<u8_t>(type & 0x00ff); |
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} |
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|
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/** |
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* This function sets the TLV reserved flag. |
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*/ |
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void tls_peap_tlv_header_c::set_flag_reserved(bool reserved) |
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{ |
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u8_t * const flag_tlv_type_data = get_header_offset(m_flags_and_tlv_type_offset, sizeof(u16_t)); |
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EAP_ASSERT(flag_tlv_type_data != 0); |
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|
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if (reserved == true) |
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{ |
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flag_tlv_type_data[0] |= m_flag_mask_reserved; |
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} |
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else |
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{ |
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flag_tlv_type_data[0] &= ~m_flag_mask_reserved; |
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} |
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} |
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|
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/** |
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* This function sets the TLV manadtory flag. |
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*/ |
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void tls_peap_tlv_header_c::set_flag_mandatory_tlv(const bool mandatory_when_true) |
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{ |
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u8_t * const flag_tlv_type_data = get_header_offset(m_flags_and_tlv_type_offset, sizeof(u16_t)); |
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EAP_ASSERT(flag_tlv_type_data != 0); |
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|
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if (mandatory_when_true == true) |
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{ |
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flag_tlv_type_data[0] |= m_flag_mask_mandatory_tlv; |
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} |
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else |
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{ |
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flag_tlv_type_data[0] &= ~m_flag_mask_mandatory_tlv; |
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} |
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} |
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|
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/** |
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* This function sets the TLV data length. |
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*/ |
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void tls_peap_tlv_header_c::set_data_length(const u16_t p_length) |
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{ |
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u8_t * const length_data = get_header_offset(m_length_offset, sizeof(u16_t)); |
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|
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EAP_ASSERT(length_data != 0); |
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|
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length_data[0] = static_cast<u8_t>((p_length & 0xff00) >> 8); |
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length_data[1] = static_cast<u8_t>((p_length & 0x00ff)); |
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} |
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|
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/** |
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* This function resets the TLV header. |
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*/ |
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void tls_peap_tlv_header_c::reset_header(const u16_t buffer_length) |
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{ |
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set_flag_tlv_type(tls_peap_tlv_type_none); |
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set_flag_reserved(0); |
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set_flag_mandatory_tlv(true); |
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set_data_length(buffer_length); |
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} |
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|
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|
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|
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|
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// End. |