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| author | Alain Mazy <am@osimis.io> |
|---|---|
| date | Tue, 13 Sep 2022 11:02:43 +0200 |
| parents | 859f3668c181 |
| children | 0ea402b4d901 |
| 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) 2017-2022 Osimis S.A., Belgium |
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6 * Copyright (C) 2021-2022 Sebastien Jodogne, ICTEAM UCLouvain, Belgium |
| 2025 | 7 * |
| 8 * This program is free software: you can redistribute it and/or | |
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9 * modify it under the terms of the GNU Lesser General Public License |
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10 * as published by the Free Software Foundation, either version 3 of |
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11 * the License, or (at your option) any later version. |
| 2025 | 12 * |
| 13 * This program is distributed in the hope that it will be useful, but | |
| 14 * WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
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16 * Lesser General Public License for more details. |
| 2025 | 17 * |
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18 * You should have received a copy of the GNU Lesser General Public |
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19 * License along with this program. If not, see |
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20 * <http://www.gnu.org/licenses/>. |
| 2025 | 21 **/ |
| 22 | |
| 23 | |
| 24 #include "PrecompiledHeaders.h" | |
| 25 #include "Pkcs11.h" | |
| 26 | |
| 27 | |
| 28 #if defined(OPENSSL_NO_RSA) || defined(OPENSSL_NO_EC) || defined(OPENSSL_NO_ECDSA) || defined(OPENSSL_NO_ECDH) | |
| 29 # error OpenSSL was compiled without support for RSA, EC, ECDSA or ECDH | |
| 30 #endif | |
| 31 | |
| 32 | |
| 33 #include "Logging.h" | |
| 34 #include "OrthancException.h" | |
| 2145 | 35 #include "SystemToolbox.h" |
| 2025 | 36 |
| 37 extern "C" | |
| 38 { | |
| 2145 | 39 # include <libp11/engine.h> // This is P11's "engine.h" |
| 40 # include <libp11/libp11.h> | |
| 2025 | 41 } |
| 42 | |
| 43 #include <openssl/engine.h> | |
| 44 | |
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45 #if OPENSSL_VERSION_NUMBER < 0x30000000L |
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46 # if defined(_MSC_VER) |
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47 # pragma message("You are linking Orthanc against OpenSSL 1.x, whose license is incompatible with the GPLv3+ used by Orthanc. Please update to OpenSSL 3.x, that uses the Apache 2 license.") |
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48 # else |
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49 # warning You are linking Orthanc against OpenSSL 1.x, whose license is incompatible with the GPLv3+ used by Orthanc. Please update to OpenSSL 3.x, that uses the Apache 2 license. |
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50 # endif |
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51 #endif |
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52 |
| 2025 | 53 |
| 54 namespace Orthanc | |
| 55 { | |
| 56 namespace Pkcs11 | |
| 57 { | |
| 58 static const char* PKCS11_ENGINE_ID = "pkcs11"; | |
| 59 static const char* PKCS11_ENGINE_NAME = "PKCS#11 for Orthanc"; | |
| 60 static const ENGINE_CMD_DEFN PKCS11_ENGINE_COMMANDS[] = | |
| 61 { | |
| 62 { | |
| 63 CMD_MODULE_PATH, | |
| 64 "MODULE_PATH", | |
| 65 "Specifies the path to the PKCS#11 module shared library", | |
| 66 ENGINE_CMD_FLAG_STRING | |
| 67 }, | |
| 68 { | |
| 69 CMD_PIN, | |
| 70 "PIN", | |
| 71 "Specifies the pin code", | |
| 72 ENGINE_CMD_FLAG_STRING | |
| 73 }, | |
| 74 { | |
| 75 CMD_VERBOSE, | |
| 76 "VERBOSE", | |
| 77 "Print additional details", | |
| 78 ENGINE_CMD_FLAG_NO_INPUT | |
| 79 }, | |
| 80 { | |
| 81 CMD_LOAD_CERT_CTRL, | |
| 82 "LOAD_CERT_CTRL", | |
| 83 "Get the certificate from card", | |
| 84 ENGINE_CMD_FLAG_INTERNAL | |
| 85 }, | |
| 86 { | |
| 87 0, | |
| 88 NULL, | |
| 89 NULL, | |
| 90 0 | |
| 91 } | |
| 92 }; | |
| 93 | |
| 94 | |
| 95 static bool pkcs11Initialized_ = false; | |
| 96 static ENGINE_CTX *context_ = NULL; | |
| 97 | |
| 98 static int EngineInitialize(ENGINE* engine) | |
| 99 { | |
| 100 if (context_ == NULL) | |
| 101 { | |
| 102 return 0; | |
| 103 } | |
| 104 else | |
| 105 { | |
| 106 return pkcs11_init(context_); | |
| 107 } | |
| 108 } | |
| 109 | |
| 110 | |
| 111 static int EngineFinalize(ENGINE* engine) | |
| 112 { | |
| 113 if (context_ == NULL) | |
| 114 { | |
| 115 return 0; | |
| 116 } | |
| 117 else | |
| 118 { | |
| 119 return pkcs11_finish(context_); | |
| 120 } | |
| 121 } | |
| 122 | |
| 123 | |
| 124 static int EngineDestroy(ENGINE* engine) | |
| 125 { | |
| 126 return (context_ == NULL ? 0 : 1); | |
| 127 } | |
| 128 | |
| 129 | |
| 130 static int EngineControl(ENGINE *engine, | |
| 131 int command, | |
| 132 long i, | |
| 133 void *p, | |
| 134 void (*f) ()) | |
| 135 { | |
| 136 if (context_ == NULL) | |
| 137 { | |
| 138 return 0; | |
| 139 } | |
| 140 else | |
| 141 { | |
| 142 return pkcs11_engine_ctrl(context_, command, i, p, f); | |
| 143 } | |
| 144 } | |
| 145 | |
| 146 | |
| 147 static EVP_PKEY *EngineLoadPublicKey(ENGINE *engine, | |
| 148 const char *s_key_id, | |
| 149 UI_METHOD *ui_method, | |
| 150 void *callback_data) | |
| 151 { | |
| 152 if (context_ == NULL) | |
| 153 { | |
| 154 return 0; | |
| 155 } | |
| 156 else | |
| 157 { | |
| 158 return pkcs11_load_public_key(context_, s_key_id, ui_method, callback_data); | |
| 159 } | |
| 160 } | |
| 161 | |
| 162 | |
| 163 static EVP_PKEY *EngineLoadPrivateKey(ENGINE *engine, | |
| 164 const char *s_key_id, | |
| 165 UI_METHOD *ui_method, | |
| 166 void *callback_data) | |
| 167 { | |
| 168 if (context_ == NULL) | |
| 169 { | |
| 170 return 0; | |
| 171 } | |
| 172 else | |
| 173 { | |
| 174 return pkcs11_load_private_key(context_, s_key_id, ui_method, callback_data); | |
| 175 } | |
| 176 } | |
| 177 | |
| 178 | |
| 179 static ENGINE* LoadEngine() | |
| 180 { | |
| 181 // This function creates an engine for PKCS#11 and inspired by | |
| 182 // the "ENGINE_load_dynamic" function from OpenSSL, in file | |
| 183 // "crypto/engine/eng_dyn.c" | |
| 184 | |
| 185 ENGINE* engine = ENGINE_new(); | |
| 186 if (!engine) | |
| 187 { | |
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188 throw OrthancException(ErrorCode_InternalError, |
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189 "Cannot create an OpenSSL engine for PKCS#11"); |
| 2025 | 190 } |
| 191 | |
| 192 // Create a PKCS#11 context using libp11 | |
| 193 context_ = pkcs11_new(); | |
| 194 if (!context_) | |
| 195 { | |
| 196 ENGINE_free(engine); | |
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197 throw OrthancException(ErrorCode_InternalError, |
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198 "Cannot create a libp11 context for PKCS#11"); |
| 2025 | 199 } |
| 200 | |
| 201 if (!ENGINE_set_id(engine, PKCS11_ENGINE_ID) || | |
| 202 !ENGINE_set_name(engine, PKCS11_ENGINE_NAME) || | |
| 203 !ENGINE_set_cmd_defns(engine, PKCS11_ENGINE_COMMANDS) || | |
| 204 | |
| 205 // Register the callback functions | |
| 206 !ENGINE_set_init_function(engine, EngineInitialize) || | |
| 207 !ENGINE_set_finish_function(engine, EngineFinalize) || | |
| 208 !ENGINE_set_destroy_function(engine, EngineDestroy) || | |
| 209 !ENGINE_set_ctrl_function(engine, EngineControl) || | |
| 210 !ENGINE_set_load_pubkey_function(engine, EngineLoadPublicKey) || | |
| 211 !ENGINE_set_load_privkey_function(engine, EngineLoadPrivateKey) || | |
| 212 | |
| 213 !ENGINE_set_RSA(engine, PKCS11_get_rsa_method()) || | |
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214 |
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215 #if OPENSSL_VERSION_NUMBER < 0x10100000L // OpenSSL 1.0.2 |
| 2025 | 216 !ENGINE_set_ECDSA(engine, PKCS11_get_ecdsa_method()) || |
| 217 !ENGINE_set_ECDH(engine, PKCS11_get_ecdh_method()) || | |
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218 #else |
| 2025 | 219 !ENGINE_set_EC(engine, PKCS11_get_ec_key_method()) || |
| 220 #endif | |
| 221 | |
| 222 // Make OpenSSL know about our PKCS#11 engine | |
| 223 !ENGINE_add(engine)) | |
| 224 { | |
| 225 pkcs11_finish(context_); | |
| 226 ENGINE_free(engine); | |
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227 throw OrthancException(ErrorCode_InternalError, |
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228 "Cannot initialize the OpenSSL engine for PKCS#11"); |
| 2025 | 229 } |
| 230 | |
| 231 // If the "ENGINE_add" worked, it gets a structural | |
| 232 // reference. We release our just-created reference. | |
| 233 ENGINE_free(engine); | |
| 234 | |
| 235 return ENGINE_by_id(PKCS11_ENGINE_ID); | |
| 236 } | |
| 237 | |
| 238 | |
| 239 bool IsInitialized() | |
| 240 { | |
| 241 return pkcs11Initialized_; | |
| 242 } | |
| 243 | |
| 244 const char* GetEngineIdentifier() | |
| 245 { | |
| 246 return PKCS11_ENGINE_ID; | |
| 247 } | |
| 248 | |
| 249 void Initialize(const std::string& module, | |
| 250 const std::string& pin, | |
| 251 bool verbose) | |
| 252 { | |
| 253 if (pkcs11Initialized_) | |
| 254 { | |
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255 throw OrthancException(ErrorCode_BadSequenceOfCalls, |
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256 "The PKCS#11 engine has already been initialized"); |
| 2025 | 257 } |
| 258 | |
| 259 if (module.empty() || | |
| 2145 | 260 !SystemToolbox::IsRegularFile(module)) |
| 2025 | 261 { |
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262 throw OrthancException( |
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263 ErrorCode_InexistentFile, |
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264 "The PKCS#11 module must be a path to one shared library (DLL or .so)"); |
| 2025 | 265 } |
| 266 | |
| 267 ENGINE* engine = LoadEngine(); | |
| 268 if (!engine) | |
| 269 { | |
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270 throw OrthancException(ErrorCode_InternalError, |
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271 "Cannot create an OpenSSL engine for PKCS#11"); |
| 2025 | 272 } |
| 273 | |
| 274 if (!ENGINE_ctrl_cmd_string(engine, "MODULE_PATH", module.c_str(), 0)) | |
| 275 { | |
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276 throw OrthancException(ErrorCode_InternalError, |
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277 "Cannot configure the OpenSSL dynamic engine for PKCS#11"); |
| 2025 | 278 } |
| 279 | |
| 280 if (verbose) | |
| 281 { | |
| 282 ENGINE_ctrl_cmd_string(engine, "VERBOSE", NULL, 0); | |
| 283 } | |
| 284 | |
| 285 if (!pin.empty() && | |
| 286 !ENGINE_ctrl_cmd_string(engine, "PIN", pin.c_str(), 0)) | |
| 287 { | |
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288 throw OrthancException(ErrorCode_InternalError, |
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289 "Cannot set the PIN code for PKCS#11"); |
| 2025 | 290 } |
| 291 | |
| 292 if (!ENGINE_init(engine)) | |
| 293 { | |
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294 throw OrthancException(ErrorCode_InternalError, |
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295 "Cannot initialize the OpenSSL dynamic engine for PKCS#11"); |
| 2025 | 296 } |
| 297 | |
| 298 LOG(WARNING) << "The PKCS#11 engine has been successfully initialized"; | |
| 299 pkcs11Initialized_ = true; | |
| 300 } | |
| 301 | |
| 302 | |
| 303 void Finalize() | |
| 304 { | |
| 305 // Nothing to do, the unregistration of the engine is | |
| 306 // automatically done by OpenSSL | |
| 307 } | |
| 308 } | |
| 309 } |