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1 /* |
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2 * ============================================================================ |
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3 * Name : ./accesssec/eapol/eapol_framework/wapi_common/src/wapi_asn1_der_parser.cpp |
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4 * Part of : WAPI / WAPI *** Info from the SWAD |
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5 * Description : WAPI authentication |
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6 * Version : %version: 12 % << Don't touch! Updated by Synergy at check-out. |
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7 * |
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8 * Copyright © 2001-2009 Nokia. All rights reserved. |
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9 * This material, including documentation and any related computer |
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10 * programs, is protected by copyright controlled by Nokia. All |
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11 * rights are reserved. Copying, including reproducing, storing, |
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12 * adapting or translating, any or all of this material requires the |
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13 * prior written consent of Nokia. This material also contains |
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14 * confidential information which may not be disclosed to others |
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15 * without the prior written consent of Nokia. |
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16 * ============================================================================ |
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17 * Template version: 4.1.1 |
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18 */ |
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19 |
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20 #include "wapi_asn1_der_parser.h" |
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21 #include "eap_automatic_variable.h" |
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22 #include "wapi_types.h" |
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23 |
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24 //-------------------------------------------------------------------------------------------------- |
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25 |
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26 EAP_FUNC_EXPORT wapi_asn1_der_parser_c::~wapi_asn1_der_parser_c() |
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27 { |
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28 } |
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29 |
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30 //-------------------------------------------------------------------------------------------------- |
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31 |
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32 EAP_FUNC_EXPORT wapi_asn1_der_parser_c::wapi_asn1_der_parser_c( |
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33 abs_eap_am_tools_c * const tools) |
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34 : m_am_tools(tools) |
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35 , m_is_valid(false) |
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36 , m_objects(tools) |
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37 { |
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38 m_is_valid = true; |
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39 } |
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40 |
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41 //-------------------------------------------------------------------------------------------------- |
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42 |
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43 EAP_FUNC_EXPORT bool wapi_asn1_der_parser_c::get_is_valid() const |
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44 { |
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45 return m_is_valid; |
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46 } |
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47 |
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48 //-------------------------------------------------------------------------------------------------- |
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49 |
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50 EAP_FUNC_EXPORT eap_status_e wapi_asn1_der_parser_c::decode(const eap_variable_data_c * const asn1_der_data) |
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51 { |
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52 EAP_TRACE_BEGIN(m_am_tools, TRACE_FLAGS_DEFAULT); |
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53 |
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54 ASN1_TYPE_TRACE_DEBUG( |
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55 m_am_tools, |
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56 TRACE_FLAGS_DEFAULT, |
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57 (EAPL("WAPI_Core: this = 0x%08x: wapi_asn1_der_parser_c::decode()\n"), |
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58 this)); |
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59 |
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60 EAP_TRACE_RETURN_STRING(m_am_tools, "returns: wapi_asn1_der_parser_c::decode()"); |
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61 |
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62 eap_status_e status(eap_status_process_general_error); |
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63 |
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64 // - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - |
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65 |
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66 bool data_continues(true); |
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67 |
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68 status = m_objects.reset(); |
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69 if (status != eap_status_ok) |
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70 { |
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71 EAP_TRACE_END(m_am_tools, TRACE_FLAGS_DEFAULT); |
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72 return EAP_STATUS_RETURN(m_am_tools, status); |
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73 } |
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74 |
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75 eap_variable_data_c input(m_am_tools); |
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76 if (input.get_is_valid() == false) |
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77 { |
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78 EAP_TRACE_END(m_am_tools, TRACE_FLAGS_DEFAULT); |
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79 return EAP_STATUS_RETURN(m_am_tools, eap_status_allocation_error); |
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80 } |
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81 |
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82 u32_t input_offset(0ul); |
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83 const u32_t input_length(asn1_der_data->get_data_length()); |
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84 u32_t input_remain_length(input_length); |
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85 |
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86 while(data_continues == true) |
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87 { |
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88 asn1_der_type_c * const asn1_der_object = new asn1_der_type_c(m_am_tools); |
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89 |
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90 eap_automatic_variable_c<asn1_der_type_c> automatic_asn1_der_object(m_am_tools, asn1_der_object); |
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91 |
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92 if (asn1_der_object == 0 |
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93 || asn1_der_object->get_is_valid() == false) |
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94 { |
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95 EAP_TRACE_END(m_am_tools, TRACE_FLAGS_DEFAULT); |
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96 return EAP_STATUS_RETURN(m_am_tools, eap_status_allocation_error); |
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97 } |
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98 |
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99 status = input.set_buffer( |
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100 asn1_der_data->get_data_offset(input_offset, input_remain_length), |
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101 input_remain_length, |
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102 false, |
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103 false); |
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104 |
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105 status = asn1_der_object->decode(&input); |
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106 if (status != eap_status_ok) |
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107 { |
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108 EAP_TRACE_END(m_am_tools, TRACE_FLAGS_DEFAULT); |
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109 return EAP_STATUS_RETURN(m_am_tools, status); |
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110 } |
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111 |
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112 automatic_asn1_der_object.do_not_free_variable(); |
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113 |
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114 status = m_objects.add_object(asn1_der_object, true); |
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115 if (status != eap_status_ok) |
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116 { |
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117 EAP_TRACE_END(m_am_tools, TRACE_FLAGS_DEFAULT); |
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118 return EAP_STATUS_RETURN(m_am_tools, status); |
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119 } |
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120 |
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121 input_offset += asn1_der_object->get_full_data_length(); |
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122 |
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123 if (input_remain_length < asn1_der_object->get_full_data_length()) |
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124 { |
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125 data_continues = false; |
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126 } |
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127 else |
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128 { |
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129 input_remain_length -= asn1_der_object->get_full_data_length(); |
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130 |
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131 if (input_remain_length >= input_length |
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132 || input_offset >= input_length) |
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133 { |
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134 data_continues = false; |
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135 } |
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136 } |
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137 } |
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138 |
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139 // - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - |
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140 |
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141 EAP_TRACE_END(m_am_tools, TRACE_FLAGS_DEFAULT); |
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142 return EAP_STATUS_RETURN(m_am_tools, status); |
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143 } |
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144 |
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145 //-------------------------------------------------------------------------------------------------- |
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146 |
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147 EAP_FUNC_EXPORT const asn1_der_type_c * wapi_asn1_der_parser_c::get_object(const u32_t index) const |
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148 { |
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149 if (m_objects.get_object_count() <= index) |
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150 { |
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151 EAP_TRACE_END(m_am_tools, TRACE_FLAGS_DEFAULT); |
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152 (void) EAP_STATUS_RETURN(m_am_tools, eap_status_illegal_index); |
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153 return 0; |
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154 } |
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155 |
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156 return m_objects.get_object(index); |
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157 } |
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158 |
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159 //-------------------------------------------------------------------------------------------------- |
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160 |
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161 EAP_FUNC_EXPORT u32_t wapi_asn1_der_parser_c::get_object_count() const |
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162 { |
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163 return m_objects.get_object_count(); |
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164 } |
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165 |
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166 //-------------------------------------------------------------------------------------------------- |
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167 |
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168 EAP_FUNC_EXPORT eap_status_e wapi_asn1_der_parser_c::get_wapi_identity( |
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169 eap_variable_data_c * const subject_name, |
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170 eap_variable_data_c * const issuer_name, |
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171 eap_variable_data_c * const sequence_number) |
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172 { |
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173 EAP_TRACE_BEGIN(m_am_tools, TRACE_FLAGS_DEFAULT); |
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174 |
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175 ASN1_TYPE_TRACE_DEBUG( |
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176 m_am_tools, |
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177 TRACE_FLAGS_DEFAULT, |
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178 (EAPL("WAPI_Core: this = 0x%08x: wapi_asn1_der_parser_c::get_wapi_identity()\n"), |
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179 this)); |
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180 |
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181 EAP_TRACE_RETURN_STRING(m_am_tools, "returns: wapi_asn1_der_parser_c::get_wapi_identity()"); |
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182 |
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183 eap_status_e status(eap_status_process_general_error); |
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184 |
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185 if (subject_name == 0 |
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186 || issuer_name == 0 |
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187 || sequence_number == 0 |
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188 || subject_name->get_is_valid() == false |
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189 || issuer_name->get_is_valid() == false |
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190 || sequence_number->get_is_valid() == false) |
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191 { |
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192 EAP_TRACE_END(m_am_tools, TRACE_FLAGS_DEFAULT); |
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193 return EAP_STATUS_RETURN(m_am_tools, eap_status_illegal_parameter); |
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194 } |
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195 |
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196 // - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - |
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197 |
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198 const asn1_type_const_c type_object_identifier[] = |
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199 { |
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200 ASN1_TYPE_OBJECT( |
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201 asn1_der_type_c::asn1_class_universal, |
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202 asn1_der_type_c::asn1_tag_sequence, |
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203 0), // Name ::= CHOICE { RDNSequence } |
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204 // ::= RDNSequence |
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205 // ::= SEQUENCE OF RelativeDistinguishedName |
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206 // ::= {organizationalUnitName[0], commonName[1]} |
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207 ASN1_TYPE_OBJECT( |
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208 asn1_der_type_c::asn1_class_universal, |
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209 asn1_der_type_c::asn1_tag_set, |
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210 1), // commonName ::= SET OF AttributeTypeAndValue |
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211 ASN1_TYPE_OBJECT( |
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212 asn1_der_type_c::asn1_class_universal, |
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213 asn1_der_type_c::asn1_tag_sequence, |
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214 0), // AttributeTypeAndValue ::= SEQUENCE { |
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215 // type AttributeType, |
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216 // value AttributeValue } |
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217 ASN1_TYPE_OBJECT( |
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218 asn1_der_type_c::asn1_class_universal, |
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219 asn1_der_type_c::asn1_tag_object_identifier, |
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220 0), // AttributeType ::= OBJECT IDENTIFIER |
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221 ASN1_TYPE_OBJECT_TERMINATOR |
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222 }; |
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223 |
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224 u32_t index(0ul); |
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225 |
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226 { |
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227 const asn1_der_type_c * const der_subject_name = get_object(index); |
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228 |
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229 if (der_subject_name == 0 |
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230 || der_subject_name->get_is_valid() == false) |
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231 { |
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232 EAP_TRACE_END(m_am_tools, TRACE_FLAGS_DEFAULT); |
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233 return EAP_STATUS_RETURN(m_am_tools, eap_status_illegal_index); |
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234 } |
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235 |
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236 const asn1_der_type_c * const der_object_identifier = der_subject_name->get_sub_type(type_object_identifier); |
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237 |
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238 if (der_object_identifier == 0 |
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239 || der_object_identifier->get_is_valid() == false) |
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240 { |
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241 EAP_TRACE_END(m_am_tools, TRACE_FLAGS_DEFAULT); |
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242 return EAP_STATUS_RETURN(m_am_tools, eap_status_illegal_index); |
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243 } |
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244 |
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245 if (der_object_identifier->get_full_data_length() != sizeof(WAPI_COMMON_NAME_OID_PARAMETER) |
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246 || m_am_tools->memcmp(WAPI_COMMON_NAME_OID_PARAMETER, |
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247 der_object_identifier->get_full_data(), |
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248 sizeof(WAPI_COMMON_NAME_OID_PARAMETER)) != 0) |
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249 { |
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250 // ERROR: wrong payload. |
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251 EAP_TRACE_END(m_am_tools, TRACE_FLAGS_DEFAULT); |
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252 return EAP_STATUS_RETURN(m_am_tools, eap_status_illegal_data_payload); |
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253 } |
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254 |
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255 status = subject_name->set_copy_of_buffer( |
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256 der_subject_name->get_full_data(), |
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257 der_subject_name->get_full_data_length()); |
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258 if (status != eap_status_ok) |
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259 { |
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260 EAP_TRACE_END(m_am_tools, TRACE_FLAGS_DEFAULT); |
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261 return EAP_STATUS_RETURN(m_am_tools, status); |
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262 } |
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263 |
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264 EAP_TRACE_DATA_DEBUG( |
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265 m_am_tools, |
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266 TRACE_FLAGS_DEFAULT, |
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267 (EAPL("subject_name"), |
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268 subject_name->get_data(), |
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269 subject_name->get_data_length())); |
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270 } |
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271 |
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272 // - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - |
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273 |
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274 ++index; |
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275 |
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276 { |
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277 const asn1_der_type_c * const der_issuer_name = get_object(index); |
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278 |
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279 if (der_issuer_name == 0 |
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280 || der_issuer_name->get_is_valid() == false) |
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281 { |
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282 EAP_TRACE_END(m_am_tools, TRACE_FLAGS_DEFAULT); |
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283 return EAP_STATUS_RETURN(m_am_tools, eap_status_illegal_index); |
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284 } |
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285 |
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286 const asn1_der_type_c * const der_object_identifier = der_issuer_name->get_sub_type(type_object_identifier); |
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287 |
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288 if (der_object_identifier == 0 |
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289 || der_object_identifier->get_is_valid() == false) |
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290 { |
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291 EAP_TRACE_END(m_am_tools, TRACE_FLAGS_DEFAULT); |
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292 return EAP_STATUS_RETURN(m_am_tools, eap_status_illegal_index); |
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293 } |
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294 |
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295 if (der_object_identifier->get_full_data_length() != sizeof(WAPI_COMMON_NAME_OID_PARAMETER) |
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296 || m_am_tools->memcmp(WAPI_COMMON_NAME_OID_PARAMETER, |
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297 der_object_identifier->get_full_data(), |
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298 sizeof(WAPI_COMMON_NAME_OID_PARAMETER)) != 0) |
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299 { |
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300 // ERROR: wrong payload. |
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301 EAP_TRACE_END(m_am_tools, TRACE_FLAGS_DEFAULT); |
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302 return EAP_STATUS_RETURN(m_am_tools, eap_status_illegal_data_payload); |
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303 } |
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304 |
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305 status = issuer_name->set_copy_of_buffer( |
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306 der_issuer_name->get_full_data(), |
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307 der_issuer_name->get_full_data_length()); |
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308 if (status != eap_status_ok) |
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309 { |
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310 EAP_TRACE_END(m_am_tools, TRACE_FLAGS_DEFAULT); |
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311 return EAP_STATUS_RETURN(m_am_tools, status); |
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312 } |
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313 |
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314 EAP_TRACE_DATA_DEBUG( |
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315 m_am_tools, |
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316 TRACE_FLAGS_DEFAULT, |
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317 (EAPL("issuer_name"), |
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318 issuer_name->get_data(), |
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319 issuer_name->get_data_length())); |
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320 } |
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321 |
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322 // - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - |
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323 |
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324 ++index; |
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325 |
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326 { |
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327 const asn1_der_type_c * const der_sequence_number = get_object(index); |
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328 |
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329 if (der_sequence_number == 0 |
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330 || der_sequence_number->get_is_valid() == false) |
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331 { |
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332 EAP_TRACE_END(m_am_tools, TRACE_FLAGS_DEFAULT); |
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333 return EAP_STATUS_RETURN(m_am_tools, eap_status_illegal_index); |
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334 } |
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335 |
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336 switch(der_sequence_number->get_tag()) |
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337 { |
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338 case asn1_der_type_c::asn1_tag_integer: |
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339 // OK |
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340 break; |
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341 default: |
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342 // ERROR: wrong payload. |
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343 EAP_TRACE_END(m_am_tools, TRACE_FLAGS_DEFAULT); |
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344 return EAP_STATUS_RETURN(m_am_tools, eap_status_illegal_data_payload); |
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345 }; |
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346 |
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347 status = sequence_number->set_copy_of_buffer( |
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348 der_sequence_number->get_full_data(), |
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349 der_sequence_number->get_full_data_length()); |
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350 if (status != eap_status_ok) |
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351 { |
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352 EAP_TRACE_END(m_am_tools, TRACE_FLAGS_DEFAULT); |
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353 return EAP_STATUS_RETURN(m_am_tools, status); |
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354 } |
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355 |
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356 EAP_TRACE_DATA_DEBUG( |
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357 m_am_tools, |
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358 TRACE_FLAGS_DEFAULT, |
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359 (EAPL("sequence_number"), |
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360 sequence_number->get_data(), |
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361 sequence_number->get_data_length())); |
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362 } |
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363 |
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364 // - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - |
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365 |
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366 EAP_TRACE_END(m_am_tools, TRACE_FLAGS_DEFAULT); |
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367 return EAP_STATUS_RETURN(m_am_tools, status); |
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368 } |
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369 |
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370 //-------------------------------------------------------------------------------------------------- |
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371 |
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372 EAP_FUNC_EXPORT eap_status_e wapi_asn1_der_parser_c::get_wapi_identity( |
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373 eap_variable_data_c * const wapi_identity) |
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374 { |
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375 EAP_TRACE_BEGIN(m_am_tools, TRACE_FLAGS_DEFAULT); |
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376 |
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377 ASN1_TYPE_TRACE_DEBUG( |
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378 m_am_tools, |
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379 TRACE_FLAGS_DEFAULT, |
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380 (EAPL("WAPI_Core: this = 0x%08x: wapi_asn1_der_parser_c::get_wapi_identity()\n"), |
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381 this)); |
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382 |
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383 EAP_TRACE_RETURN_STRING(m_am_tools, "returns: wapi_asn1_der_parser_c::get_wapi_identity()"); |
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384 |
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385 eap_status_e status(eap_status_process_general_error); |
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386 |
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387 if (wapi_identity == 0 |
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388 || wapi_identity->get_is_valid() == false) |
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389 { |
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390 EAP_TRACE_END(m_am_tools, TRACE_FLAGS_DEFAULT); |
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391 return EAP_STATUS_RETURN(m_am_tools, eap_status_illegal_parameter); |
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392 } |
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393 |
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394 // - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - |
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395 |
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396 eap_variable_data_c subject_name(m_am_tools); |
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397 eap_variable_data_c issuer_name(m_am_tools); |
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398 eap_variable_data_c sequence_number(m_am_tools); |
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399 |
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400 if (subject_name.get_is_valid() == false |
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401 || issuer_name.get_is_valid() == false |
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402 || sequence_number.get_is_valid() == false) |
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403 { |
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404 EAP_TRACE_END(m_am_tools, TRACE_FLAGS_DEFAULT); |
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405 return EAP_STATUS_RETURN(m_am_tools, eap_status_allocation_error); |
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406 } |
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407 |
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408 status = get_wapi_identity( |
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409 &subject_name, |
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410 &issuer_name, |
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411 &sequence_number); |
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412 if (status != eap_status_ok) |
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413 { |
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414 EAP_TRACE_END(m_am_tools, TRACE_FLAGS_DEFAULT); |
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415 return EAP_STATUS_RETURN(m_am_tools, status); |
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416 } |
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417 |
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418 status = wapi_identity->set_copy_of_buffer(&subject_name); |
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419 if (status != eap_status_ok) |
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420 { |
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421 EAP_TRACE_END(m_am_tools, TRACE_FLAGS_DEFAULT); |
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422 return EAP_STATUS_RETURN(m_am_tools, status); |
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423 } |
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424 |
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425 status = wapi_identity->add_data(&issuer_name); |
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426 if (status != eap_status_ok) |
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427 { |
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428 EAP_TRACE_END(m_am_tools, TRACE_FLAGS_DEFAULT); |
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429 return EAP_STATUS_RETURN(m_am_tools, status); |
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430 } |
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431 |
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432 status = wapi_identity->add_data(&sequence_number); |
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433 if (status != eap_status_ok) |
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434 { |
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435 EAP_TRACE_END(m_am_tools, TRACE_FLAGS_DEFAULT); |
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436 return EAP_STATUS_RETURN(m_am_tools, status); |
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437 } |
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438 |
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439 // - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - |
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440 |
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441 EAP_TRACE_END(m_am_tools, TRACE_FLAGS_DEFAULT); |
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442 return EAP_STATUS_RETURN(m_am_tools, status); |
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443 } |
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444 |
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445 |
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446 //-------------------------------------------------------------------------------------------------- |
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447 |
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448 EAP_FUNC_EXPORT eap_status_e wapi_asn1_der_parser_c::get_decoded_subject_name( |
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449 eap_variable_data_c * const identity_data, |
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450 eap_variable_data_c * const decoded_data) |
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451 { |
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452 |
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453 eap_status_e status = eap_status_ok; |
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454 eap_variable_data_c subject_name(m_am_tools); |
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455 |
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456 if ( subject_name.get_is_valid() == false ) |
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457 { |
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458 EAP_TRACE_END(m_am_tools, TRACE_FLAGS_DEFAULT); |
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459 return EAP_STATUS_RETURN(m_am_tools, eap_status_allocation_error); |
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460 } |
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461 |
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462 // The data is stored to this objects internal variables with decode |
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463 status = decode(identity_data); |
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464 if (status != eap_status_ok) |
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465 { |
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466 EAP_TRACE_END(m_am_tools, TRACE_FLAGS_DEFAULT); |
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467 return EAP_STATUS_RETURN(m_am_tools, status); |
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468 } |
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469 |
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470 const asn1_type_const_c type_name_sequence[] = |
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471 { |
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472 ASN1_TYPE_OBJECT( |
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473 asn1_der_type_c::asn1_class_universal, |
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474 asn1_der_type_c::asn1_tag_sequence, |
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475 0), // Name ::= CHOICE { RDNSequence } |
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476 // ::= RDNSequence |
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477 // ::= SEQUENCE OF RelativeDistinguishedName |
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478 // ::= {organizationalUnitName[0], commonName[1]} |
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479 ASN1_TYPE_OBJECT( |
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480 asn1_der_type_c::asn1_class_universal, |
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481 asn1_der_type_c::asn1_tag_set, |
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482 1), // commonName ::= SET OF AttributeTypeAndValue |
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483 ASN1_TYPE_OBJECT( |
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484 asn1_der_type_c::asn1_class_universal, |
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485 asn1_der_type_c::asn1_tag_sequence, |
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486 0), // AttributeTypeAndValue ::= SEQUENCE { |
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487 // type AttributeType, |
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488 // value AttributeValue } |
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489 #if 0 |
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490 // This last object is variable type and it is handled later. |
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491 ASN1_TYPE_OBJECT( |
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492 asn1_der_type_c::asn1_class_universal, |
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493 asn1_der_type_c::asn1_tag_printable_string, |
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494 0), // AttributeValue ::= ANY DEFINED BY AttributeType |
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495 // ::= DirectoryString ::= CHOICE { |
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496 // teletexString TeletexString (SIZE (1..MAX)), |
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497 // printableString PrintableString (SIZE (1..MAX)), |
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498 // universalString UniversalString (SIZE (1..MAX)), |
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499 // utf8String UTF8String (SIZE (1..MAX)), |
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500 // bmpString BMPString (SIZE (1..MAX)) } |
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501 #endif |
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502 ASN1_TYPE_OBJECT_TERMINATOR |
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503 }; |
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504 |
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505 if (get_object_count() == 0ul) |
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506 { |
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507 EAP_TRACE_END(m_am_tools, TRACE_FLAGS_DEFAULT); |
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508 return EAP_STATUS_RETURN(m_am_tools, eap_status_illegal_index); |
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509 } |
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510 |
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511 const asn1_der_type_c * const der_name_sequence = get_object(0ul)->get_sub_type(type_name_sequence); |
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512 |
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513 if (der_name_sequence == 0 |
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514 || der_name_sequence->get_is_valid() == false) |
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515 { |
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516 EAP_TRACE_END(m_am_tools, TRACE_FLAGS_DEFAULT); |
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517 return EAP_STATUS_RETURN(m_am_tools, eap_status_illegal_index); |
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518 } |
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519 |
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520 // Second object (index 1) in SEQUENCE is AttributeValue. |
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521 const asn1_der_type_c * const der_name = der_name_sequence->get_sub_types()->get_object(1ul); |
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522 |
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523 if (der_name == 0 |
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524 || der_name->get_is_valid() == false |
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525 || (/* der_name->get_tag() != asn1_der_type_c::asn1_tag_teletex_string // This is not defined yet. |
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526 && */ |
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527 der_name->get_tag() != asn1_der_type_c::asn1_tag_printable_string |
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528 && der_name->get_tag() != asn1_der_type_c::asn1_tag_universal_string |
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529 && der_name->get_tag() != asn1_der_type_c::asn1_tag_utf8_string |
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530 && der_name->get_tag() != asn1_der_type_c::asn1_tag_bmp_string |
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531 && der_name->get_tag() != asn1_der_type_c::asn1_tag_t61_string)) |
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532 { |
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533 EAP_TRACE_END(m_am_tools, TRACE_FLAGS_DEFAULT); |
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534 return EAP_STATUS_RETURN(m_am_tools, eap_status_illegal_index); |
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535 } |
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536 |
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537 // Copy the decoded data into the returned parameter |
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538 status = decoded_data->set_copy_of_buffer( |
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539 der_name->get_content(), |
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540 der_name->get_content_length()); |
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541 if (status != eap_status_ok) |
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542 { |
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543 EAP_TRACE_END(m_am_tools, TRACE_FLAGS_DEFAULT); |
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544 return EAP_STATUS_RETURN(m_am_tools, status); |
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545 } |
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546 |
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547 EAP_TRACE_END(m_am_tools, TRACE_FLAGS_DEFAULT); |
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548 return EAP_STATUS_RETURN(m_am_tools, status); |
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549 } |
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550 |
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551 |
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552 //-------------------------------------------------------------------------------------------------- |
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553 |
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554 // End. |