Mercurial > hg > orthanc
annotate OrthancFramework/Sources/Pkcs11.cpp @ 4470:06d164d8a0fd
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| author | Sebastien Jodogne <s.jodogne@gmail.com> |
|---|---|
| date | Mon, 25 Jan 2021 18:38:29 +0100 |
| parents | d9473bd5ed43 |
| children | a6b7c29f5118 7053502fbf97 |
| rev | line source |
|---|---|
| 2025 | 1 /** |
| 2 * Orthanc - A Lightweight, RESTful DICOM Store | |
| 3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics | |
| 4 * Department, University Hospital of Liege, Belgium | |
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5 * Copyright (C) 2017-2021 Osimis S.A., Belgium |
| 2025 | 6 * |
| 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. |
| 2025 | 11 * |
| 12 * This program is distributed in the hope that it will be useful, but | |
| 13 * WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
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15 * Lesser General Public License for more details. |
| 2025 | 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/>. |
| 2025 | 20 **/ |
| 21 | |
| 22 | |
| 23 #include "PrecompiledHeaders.h" | |
| 24 #include "Pkcs11.h" | |
| 25 | |
| 26 | |
| 27 #if defined(OPENSSL_NO_RSA) || defined(OPENSSL_NO_EC) || defined(OPENSSL_NO_ECDSA) || defined(OPENSSL_NO_ECDH) | |
| 28 # error OpenSSL was compiled without support for RSA, EC, ECDSA or ECDH | |
| 29 #endif | |
| 30 | |
| 31 | |
| 32 #include "Logging.h" | |
| 33 #include "OrthancException.h" | |
| 2145 | 34 #include "SystemToolbox.h" |
| 2025 | 35 |
| 36 extern "C" | |
| 37 { | |
| 2145 | 38 # include <libp11/engine.h> // This is P11's "engine.h" |
| 39 # include <libp11/libp11.h> | |
| 2025 | 40 } |
| 41 | |
| 42 #include <openssl/engine.h> | |
| 43 | |
| 44 | |
| 45 namespace Orthanc | |
| 46 { | |
| 47 namespace Pkcs11 | |
| 48 { | |
| 49 static const char* PKCS11_ENGINE_ID = "pkcs11"; | |
| 50 static const char* PKCS11_ENGINE_NAME = "PKCS#11 for Orthanc"; | |
| 51 static const ENGINE_CMD_DEFN PKCS11_ENGINE_COMMANDS[] = | |
| 52 { | |
| 53 { | |
| 54 CMD_MODULE_PATH, | |
| 55 "MODULE_PATH", | |
| 56 "Specifies the path to the PKCS#11 module shared library", | |
| 57 ENGINE_CMD_FLAG_STRING | |
| 58 }, | |
| 59 { | |
| 60 CMD_PIN, | |
| 61 "PIN", | |
| 62 "Specifies the pin code", | |
| 63 ENGINE_CMD_FLAG_STRING | |
| 64 }, | |
| 65 { | |
| 66 CMD_VERBOSE, | |
| 67 "VERBOSE", | |
| 68 "Print additional details", | |
| 69 ENGINE_CMD_FLAG_NO_INPUT | |
| 70 }, | |
| 71 { | |
| 72 CMD_LOAD_CERT_CTRL, | |
| 73 "LOAD_CERT_CTRL", | |
| 74 "Get the certificate from card", | |
| 75 ENGINE_CMD_FLAG_INTERNAL | |
| 76 }, | |
| 77 { | |
| 78 0, | |
| 79 NULL, | |
| 80 NULL, | |
| 81 0 | |
| 82 } | |
| 83 }; | |
| 84 | |
| 85 | |
| 86 static bool pkcs11Initialized_ = false; | |
| 87 static ENGINE_CTX *context_ = NULL; | |
| 88 | |
| 89 static int EngineInitialize(ENGINE* engine) | |
| 90 { | |
| 91 if (context_ == NULL) | |
| 92 { | |
| 93 return 0; | |
| 94 } | |
| 95 else | |
| 96 { | |
| 97 return pkcs11_init(context_); | |
| 98 } | |
| 99 } | |
| 100 | |
| 101 | |
| 102 static int EngineFinalize(ENGINE* engine) | |
| 103 { | |
| 104 if (context_ == NULL) | |
| 105 { | |
| 106 return 0; | |
| 107 } | |
| 108 else | |
| 109 { | |
| 110 return pkcs11_finish(context_); | |
| 111 } | |
| 112 } | |
| 113 | |
| 114 | |
| 115 static int EngineDestroy(ENGINE* engine) | |
| 116 { | |
| 117 return (context_ == NULL ? 0 : 1); | |
| 118 } | |
| 119 | |
| 120 | |
| 121 static int EngineControl(ENGINE *engine, | |
| 122 int command, | |
| 123 long i, | |
| 124 void *p, | |
| 125 void (*f) ()) | |
| 126 { | |
| 127 if (context_ == NULL) | |
| 128 { | |
| 129 return 0; | |
| 130 } | |
| 131 else | |
| 132 { | |
| 133 return pkcs11_engine_ctrl(context_, command, i, p, f); | |
| 134 } | |
| 135 } | |
| 136 | |
| 137 | |
| 138 static EVP_PKEY *EngineLoadPublicKey(ENGINE *engine, | |
| 139 const char *s_key_id, | |
| 140 UI_METHOD *ui_method, | |
| 141 void *callback_data) | |
| 142 { | |
| 143 if (context_ == NULL) | |
| 144 { | |
| 145 return 0; | |
| 146 } | |
| 147 else | |
| 148 { | |
| 149 return pkcs11_load_public_key(context_, s_key_id, ui_method, callback_data); | |
| 150 } | |
| 151 } | |
| 152 | |
| 153 | |
| 154 static EVP_PKEY *EngineLoadPrivateKey(ENGINE *engine, | |
| 155 const char *s_key_id, | |
| 156 UI_METHOD *ui_method, | |
| 157 void *callback_data) | |
| 158 { | |
| 159 if (context_ == NULL) | |
| 160 { | |
| 161 return 0; | |
| 162 } | |
| 163 else | |
| 164 { | |
| 165 return pkcs11_load_private_key(context_, s_key_id, ui_method, callback_data); | |
| 166 } | |
| 167 } | |
| 168 | |
| 169 | |
| 170 static ENGINE* LoadEngine() | |
| 171 { | |
| 172 // This function creates an engine for PKCS#11 and inspired by | |
| 173 // the "ENGINE_load_dynamic" function from OpenSSL, in file | |
| 174 // "crypto/engine/eng_dyn.c" | |
| 175 | |
| 176 ENGINE* engine = ENGINE_new(); | |
| 177 if (!engine) | |
| 178 { | |
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179 throw OrthancException(ErrorCode_InternalError, |
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180 "Cannot create an OpenSSL engine for PKCS#11"); |
| 2025 | 181 } |
| 182 | |
| 183 // Create a PKCS#11 context using libp11 | |
| 184 context_ = pkcs11_new(); | |
| 185 if (!context_) | |
| 186 { | |
| 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"); |
| 2025 | 190 } |
| 191 | |
| 192 if (!ENGINE_set_id(engine, PKCS11_ENGINE_ID) || | |
| 193 !ENGINE_set_name(engine, PKCS11_ENGINE_NAME) || | |
| 194 !ENGINE_set_cmd_defns(engine, PKCS11_ENGINE_COMMANDS) || | |
| 195 | |
| 196 // Register the callback functions | |
| 197 !ENGINE_set_init_function(engine, EngineInitialize) || | |
| 198 !ENGINE_set_finish_function(engine, EngineFinalize) || | |
| 199 !ENGINE_set_destroy_function(engine, EngineDestroy) || | |
| 200 !ENGINE_set_ctrl_function(engine, EngineControl) || | |
| 201 !ENGINE_set_load_pubkey_function(engine, EngineLoadPublicKey) || | |
| 202 !ENGINE_set_load_privkey_function(engine, EngineLoadPrivateKey) || | |
| 203 | |
| 204 !ENGINE_set_RSA(engine, PKCS11_get_rsa_method()) || | |
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205 |
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206 #if OPENSSL_VERSION_NUMBER < 0x10100000L // OpenSSL 1.0.2 |
| 2025 | 207 !ENGINE_set_ECDSA(engine, PKCS11_get_ecdsa_method()) || |
| 208 !ENGINE_set_ECDH(engine, PKCS11_get_ecdh_method()) || | |
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209 #else |
| 2025 | 210 !ENGINE_set_EC(engine, PKCS11_get_ec_key_method()) || |
| 211 #endif | |
| 212 | |
| 213 // Make OpenSSL know about our PKCS#11 engine | |
| 214 !ENGINE_add(engine)) | |
| 215 { | |
| 216 pkcs11_finish(context_); | |
| 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 | 220 } |
| 221 | |
| 222 // If the "ENGINE_add" worked, it gets a structural | |
| 223 // reference. We release our just-created reference. | |
| 224 ENGINE_free(engine); | |
| 225 | |
| 226 return ENGINE_by_id(PKCS11_ENGINE_ID); | |
| 227 } | |
| 228 | |
| 229 | |
| 230 bool IsInitialized() | |
| 231 { | |
| 232 return pkcs11Initialized_; | |
| 233 } | |
| 234 | |
| 235 const char* GetEngineIdentifier() | |
| 236 { | |
| 237 return PKCS11_ENGINE_ID; | |
| 238 } | |
| 239 | |
| 240 void Initialize(const std::string& module, | |
| 241 const std::string& pin, | |
| 242 bool verbose) | |
| 243 { | |
| 244 if (pkcs11Initialized_) | |
| 245 { | |
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246 throw OrthancException(ErrorCode_BadSequenceOfCalls, |
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247 "The PKCS#11 engine has already been initialized"); |
| 2025 | 248 } |
| 249 | |
| 250 if (module.empty() || | |
| 2145 | 251 !SystemToolbox::IsRegularFile(module)) |
| 2025 | 252 { |
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253 throw OrthancException( |
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254 ErrorCode_InexistentFile, |
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255 "The PKCS#11 module must be a path to one shared library (DLL or .so)"); |
| 2025 | 256 } |
| 257 | |
| 258 ENGINE* engine = LoadEngine(); | |
| 259 if (!engine) | |
| 260 { | |
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261 throw OrthancException(ErrorCode_InternalError, |
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262 "Cannot create an OpenSSL engine for PKCS#11"); |
| 2025 | 263 } |
| 264 | |
| 265 if (!ENGINE_ctrl_cmd_string(engine, "MODULE_PATH", module.c_str(), 0)) | |
| 266 { | |
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267 throw OrthancException(ErrorCode_InternalError, |
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268 "Cannot configure the OpenSSL dynamic engine for PKCS#11"); |
| 2025 | 269 } |
| 270 | |
| 271 if (verbose) | |
| 272 { | |
| 273 ENGINE_ctrl_cmd_string(engine, "VERBOSE", NULL, 0); | |
| 274 } | |
| 275 | |
| 276 if (!pin.empty() && | |
| 277 !ENGINE_ctrl_cmd_string(engine, "PIN", pin.c_str(), 0)) | |
| 278 { | |
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279 throw OrthancException(ErrorCode_InternalError, |
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280 "Cannot set the PIN code for PKCS#11"); |
| 2025 | 281 } |
| 282 | |
| 283 if (!ENGINE_init(engine)) | |
| 284 { | |
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285 throw OrthancException(ErrorCode_InternalError, |
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286 "Cannot initialize the OpenSSL dynamic engine for PKCS#11"); |
| 2025 | 287 } |
| 288 | |
| 289 LOG(WARNING) << "The PKCS#11 engine has been successfully initialized"; | |
| 290 pkcs11Initialized_ = true; | |
| 291 } | |
| 292 | |
| 293 | |
| 294 void Finalize() | |
| 295 { | |
| 296 // Nothing to do, the unregistration of the engine is | |
| 297 // automatically done by OpenSSL | |
| 298 } | |
| 299 } | |
| 300 } |