annotate OrthancFramework/Sources/Pkcs11.cpp @ 4706:dbee8bd8ee1f

display OpenSSL version in the logs
author Sebastien Jodogne <s.jodogne@gmail.com>
date Tue, 22 Jun 2021 09:13:03 +0200
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1 /**
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2 * Orthanc - A Lightweight, RESTful DICOM Store
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3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics
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4 * Department, University Hospital of Liege, Belgium
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5 * Copyright (C) 2017-2021 Osimis S.A., Belgium
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6 *
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7 * This program is free software: you can redistribute it and/or
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8 * modify it under the terms of the GNU Lesser General Public License
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9 * as published by the Free Software Foundation, either version 3 of
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10 * the License, or (at your option) any later version.
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11 *
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12 * This program is distributed in the hope that it will be useful, but
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13 * WITHOUT ANY WARRANTY; without even the implied warranty of
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14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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15 * Lesser General Public License for more details.
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16 *
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17 * You should have received a copy of the GNU Lesser General Public
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18 * License along with this program. If not, see
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19 * <http://www.gnu.org/licenses/>.
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20 **/
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21
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22
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23 #include "PrecompiledHeaders.h"
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24 #include "Pkcs11.h"
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26
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27 #if defined(OPENSSL_NO_RSA) || defined(OPENSSL_NO_EC) || defined(OPENSSL_NO_ECDSA) || defined(OPENSSL_NO_ECDH)
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28 # error OpenSSL was compiled without support for RSA, EC, ECDSA or ECDH
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29 #endif
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30
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31
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32 #include "Logging.h"
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33 #include "OrthancException.h"
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34 #include "SystemToolbox.h"
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35
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36 extern "C"
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37 {
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38 # include <libp11/engine.h> // This is P11's "engine.h"
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39 # include <libp11/libp11.h>
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40 }
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41
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42 #include <openssl/engine.h>
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43
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44
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45 namespace Orthanc
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46 {
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47 namespace Pkcs11
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48 {
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49 static const char* PKCS11_ENGINE_ID = "pkcs11";
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50 static const char* PKCS11_ENGINE_NAME = "PKCS#11 for Orthanc";
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51 static const ENGINE_CMD_DEFN PKCS11_ENGINE_COMMANDS[] =
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52 {
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53 {
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54 CMD_MODULE_PATH,
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55 "MODULE_PATH",
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56 "Specifies the path to the PKCS#11 module shared library",
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57 ENGINE_CMD_FLAG_STRING
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58 },
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59 {
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60 CMD_PIN,
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61 "PIN",
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62 "Specifies the pin code",
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63 ENGINE_CMD_FLAG_STRING
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64 },
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65 {
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66 CMD_VERBOSE,
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67 "VERBOSE",
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68 "Print additional details",
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69 ENGINE_CMD_FLAG_NO_INPUT
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70 },
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71 {
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72 CMD_LOAD_CERT_CTRL,
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73 "LOAD_CERT_CTRL",
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74 "Get the certificate from card",
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75 ENGINE_CMD_FLAG_INTERNAL
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76 },
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77 {
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78 0,
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79 NULL,
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80 NULL,
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81 0
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82 }
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83 };
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84
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85
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86 static bool pkcs11Initialized_ = false;
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87 static ENGINE_CTX *context_ = NULL;
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88
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89 static int EngineInitialize(ENGINE* engine)
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90 {
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91 if (context_ == NULL)
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92 {
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93 return 0;
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94 }
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95 else
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96 {
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97 return pkcs11_init(context_);
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98 }
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99 }
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100
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101
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102 static int EngineFinalize(ENGINE* engine)
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103 {
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104 if (context_ == NULL)
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105 {
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106 return 0;
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107 }
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108 else
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109 {
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110 return pkcs11_finish(context_);
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111 }
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112 }
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113
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114
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115 static int EngineDestroy(ENGINE* engine)
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116 {
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117 return (context_ == NULL ? 0 : 1);
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118 }
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119
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120
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121 static int EngineControl(ENGINE *engine,
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122 int command,
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123 long i,
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124 void *p,
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125 void (*f) ())
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126 {
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127 if (context_ == NULL)
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128 {
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129 return 0;
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130 }
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131 else
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132 {
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133 return pkcs11_engine_ctrl(context_, command, i, p, f);
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134 }
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135 }
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136
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137
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138 static EVP_PKEY *EngineLoadPublicKey(ENGINE *engine,
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139 const char *s_key_id,
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140 UI_METHOD *ui_method,
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141 void *callback_data)
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142 {
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143 if (context_ == NULL)
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144 {
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145 return 0;
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146 }
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147 else
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148 {
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149 return pkcs11_load_public_key(context_, s_key_id, ui_method, callback_data);
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150 }
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151 }
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152
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153
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154 static EVP_PKEY *EngineLoadPrivateKey(ENGINE *engine,
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155 const char *s_key_id,
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156 UI_METHOD *ui_method,
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157 void *callback_data)
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158 {
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159 if (context_ == NULL)
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160 {
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161 return 0;
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162 }
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163 else
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164 {
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165 return pkcs11_load_private_key(context_, s_key_id, ui_method, callback_data);
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166 }
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167 }
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parents:
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168
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169
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170 static ENGINE* LoadEngine()
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171 {
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172 // This function creates an engine for PKCS#11 and inspired by
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173 // the "ENGINE_load_dynamic" function from OpenSSL, in file
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174 // "crypto/engine/eng_dyn.c"
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175
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176 ENGINE* engine = ENGINE_new();
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177 if (!engine)
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178 {
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179 throw OrthancException(ErrorCode_InternalError,
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180 "Cannot create an OpenSSL engine for PKCS#11");
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181 }
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182
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183 // Create a PKCS#11 context using libp11
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184 context_ = pkcs11_new();
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185 if (!context_)
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186 {
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187 ENGINE_free(engine);
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188 throw OrthancException(ErrorCode_InternalError,
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189 "Cannot create a libp11 context for PKCS#11");
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190 }
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191
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192 if (!ENGINE_set_id(engine, PKCS11_ENGINE_ID) ||
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193 !ENGINE_set_name(engine, PKCS11_ENGINE_NAME) ||
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194 !ENGINE_set_cmd_defns(engine, PKCS11_ENGINE_COMMANDS) ||
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195
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196 // Register the callback functions
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197 !ENGINE_set_init_function(engine, EngineInitialize) ||
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198 !ENGINE_set_finish_function(engine, EngineFinalize) ||
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199 !ENGINE_set_destroy_function(engine, EngineDestroy) ||
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200 !ENGINE_set_ctrl_function(engine, EngineControl) ||
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201 !ENGINE_set_load_pubkey_function(engine, EngineLoadPublicKey) ||
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202 !ENGINE_set_load_privkey_function(engine, EngineLoadPrivateKey) ||
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203
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204 !ENGINE_set_RSA(engine, PKCS11_get_rsa_method()) ||
3723
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parents: 3640
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205
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206 #if OPENSSL_VERSION_NUMBER < 0x10100000L // OpenSSL 1.0.2
2025
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207 !ENGINE_set_ECDSA(engine, PKCS11_get_ecdsa_method()) ||
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208 !ENGINE_set_ECDH(engine, PKCS11_get_ecdh_method()) ||
3723
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diff changeset
209 #else
2025
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210 !ENGINE_set_EC(engine, PKCS11_get_ec_key_method()) ||
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211 #endif
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212
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213 // Make OpenSSL know about our PKCS#11 engine
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214 !ENGINE_add(engine))
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215 {
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216 pkcs11_finish(context_);
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217 ENGINE_free(engine);
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218 throw OrthancException(ErrorCode_InternalError,
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219 "Cannot initialize the OpenSSL engine for PKCS#11");
2025
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220 }
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parents:
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221
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222 // If the "ENGINE_add" worked, it gets a structural
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223 // reference. We release our just-created reference.
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224 ENGINE_free(engine);
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diff changeset
225
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226 return ENGINE_by_id(PKCS11_ENGINE_ID);
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parents:
diff changeset
227 }
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parents:
diff changeset
228
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diff changeset
229
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diff changeset
230 bool IsInitialized()
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231 {
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parents:
diff changeset
232 return pkcs11Initialized_;
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parents:
diff changeset
233 }
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parents:
diff changeset
234
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diff changeset
235 const char* GetEngineIdentifier()
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236 {
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diff changeset
237 return PKCS11_ENGINE_ID;
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parents:
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238 }
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Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
239
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diff changeset
240 void Initialize(const std::string& module,
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diff changeset
241 const std::string& pin,
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diff changeset
242 bool verbose)
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diff changeset
243 {
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parents:
diff changeset
244 if (pkcs11Initialized_)
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diff changeset
245 {
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parents: 2447
diff changeset
246 throw OrthancException(ErrorCode_BadSequenceOfCalls,
d924f9bb61cc taking advantage of details in OrthancException
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parents: 2447
diff changeset
247 "The PKCS#11 engine has already been initialized");
2025
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Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
248 }
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parents:
diff changeset
249
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parents:
diff changeset
250 if (module.empty() ||
2145
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parents: 2136
diff changeset
251 !SystemToolbox::IsRegularFile(module))
2025
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diff changeset
252 {
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parents: 2447
diff changeset
253 throw OrthancException(
d924f9bb61cc taking advantage of details in OrthancException
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 2447
diff changeset
254 ErrorCode_InexistentFile,
d924f9bb61cc taking advantage of details in OrthancException
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 2447
diff changeset
255 "The PKCS#11 module must be a path to one shared library (DLL or .so)");
2025
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parents:
diff changeset
256 }
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parents:
diff changeset
257
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parents:
diff changeset
258 ENGINE* engine = LoadEngine();
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parents:
diff changeset
259 if (!engine)
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parents:
diff changeset
260 {
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d924f9bb61cc taking advantage of details in OrthancException
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parents: 2447
diff changeset
261 throw OrthancException(ErrorCode_InternalError,
d924f9bb61cc taking advantage of details in OrthancException
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 2447
diff changeset
262 "Cannot create an OpenSSL engine for PKCS#11");
2025
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Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
263 }
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parents:
diff changeset
264
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diff changeset
265 if (!ENGINE_ctrl_cmd_string(engine, "MODULE_PATH", module.c_str(), 0))
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Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
266 {
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parents: 2447
diff changeset
267 throw OrthancException(ErrorCode_InternalError,
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Sebastien Jodogne <s.jodogne@gmail.com>
parents: 2447
diff changeset
268 "Cannot configure the OpenSSL dynamic engine for PKCS#11");
2025
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Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
269 }
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Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
270
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Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
271 if (verbose)
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parents:
diff changeset
272 {
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parents:
diff changeset
273 ENGINE_ctrl_cmd_string(engine, "VERBOSE", NULL, 0);
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Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
274 }
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Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
275
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Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
276 if (!pin.empty() &&
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Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
277 !ENGINE_ctrl_cmd_string(engine, "PIN", pin.c_str(), 0))
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Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
278 {
2954
d924f9bb61cc taking advantage of details in OrthancException
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parents: 2447
diff changeset
279 throw OrthancException(ErrorCode_InternalError,
d924f9bb61cc taking advantage of details in OrthancException
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 2447
diff changeset
280 "Cannot set the PIN code for PKCS#11");
2025
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Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
281 }
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Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
282
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Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
283 if (!ENGINE_init(engine))
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parents:
diff changeset
284 {
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parents: 2447
diff changeset
285 throw OrthancException(ErrorCode_InternalError,
d924f9bb61cc taking advantage of details in OrthancException
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 2447
diff changeset
286 "Cannot initialize the OpenSSL dynamic engine for PKCS#11");
2025
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parents:
diff changeset
287 }
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Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
288
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diff changeset
289 LOG(WARNING) << "The PKCS#11 engine has been successfully initialized";
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Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
290 pkcs11Initialized_ = true;
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Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
291 }
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Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
292
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Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
293
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parents:
diff changeset
294 void Finalize()
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parents:
diff changeset
295 {
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parents:
diff changeset
296 // Nothing to do, the unregistration of the engine is
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Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
297 // automatically done by OpenSSL
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parents:
diff changeset
298 }
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parents:
diff changeset
299 }
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Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
300 }