server/internal-encryption.cpp

   1 /*
   2  *  Copyright (c) 2015-2019 Samsung Electronics Co., Ltd All Rights Reserved
   3  *
   4  *  Licensed under the Apache License, Version 2.0 (the "License");
   5  *  you may not use this file except in compliance with the License.
   6  *  You may obtain a copy of the License at
   7  *
   8  *      http://www.apache.org/licenses/LICENSE-2.0
   9  *
  10  *  Unless required by applicable law or agreed to in writing, software
  11  *  distributed under the License is distributed on an "AS IS" BASIS,
  12  *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13  *  See the License for the specific language governing permissions and
  14  *  limitations under the License
  15  */
  16 #include <set>
  17 #include <algorithm>
  18 #include <memory>
  19 #include <mutex>
  20 #include <condition_variable>
  21 #include <list>
  22
  23 #include <fstream>
  24 #include <fcntl.h>
  25 #include <signal.h>
  26 #include <unistd.h>
  27 #include <sys/mount.h>
  28 #include <sys/reboot.h>
  29 #include <limits.h>
  30 #include <stdlib.h>
  31 #include <string.h>
  32
  33 #include <vconf.h>
  34 #include <tzplatform_config.h>
  35 #include <device/power.h>
  36 #include <klay/process.h>
  37 #include <klay/file-user.h>
  38 #include <klay/filesystem.h>
  39 #include <klay/dbus/connection.h>
  40 #include <klay/error.h>
  41 #include <systemd/sd-bus.h>
  42
  43 #include "misc.h"
  44 #include "logger.h"
  45 #include "progress-bar.h"
  46 #include "rmi/common.h"
  47
  48 #include "ext4-tool.h"
  49 #include "internal-encryption.h"
  50 #include "internal-encryption-common.h"
  51 #include "upgrade-support.h"
  52 #include "file-footer.h"
  53
  54 namespace ode {
  55
  56 namespace {
  57
  58 const char *PRIVILEGE_PLATFORM  = "http://tizen.org/privilege/internal/default/platform";
  59
  60 // watches systemd jobs
  61 class JobWatch {
  62 public:
  63         explicit JobWatch(dbus::Connection& systemDBus);
  64         ~JobWatch();
  65
  66         bool waitForJob(const std::string& job);
  67
  68 private:
  69         void jobRemoved(const dbus::Variant& parameters);
  70
  71         struct Job {
  72                 Job(uint32_t id,
  73                         const std::string& job,
  74                         const std::string& unit,
  75                         const std::string& result) : id(id), job(job), unit(unit), result(result) {}
  76                 uint32_t id;
  77                 std::string job;
  78                 std::string unit;
  79                 std::string result;
  80         };
  81
  82         dbus::Connection::SubscriptionId id;
  83         dbus::Connection& systemDBus;
  84         std::list<Job> removedJobs;
  85         std::mutex jobsMutex;
  86         std::condition_variable jobsCv;
  87 };
  88
  89 JobWatch::JobWatch(dbus::Connection& systemDBus) : systemDBus(systemDBus) {
  90         auto callback = [this](dbus::Variant parameters) {
  91                 this->jobRemoved(parameters);
  92         };
  93
  94         id = systemDBus.subscribeSignal("",
  95                                                                         "/org/freedesktop/systemd1",
  96                                                                         "org.freedesktop.systemd1.Manager",
  97                                                                         "JobRemoved",
  98                                                                         callback);
  99 }
 100
 101 JobWatch::~JobWatch() {
 102         systemDBus.unsubscribeSignal(id);
 103 }
 104
 105 bool JobWatch::waitForJob(const std::string& job) {
 106         while(true) {
 107                 std::unique_lock<std::mutex> lock(jobsMutex);
 108                 bool timeout = true;
 109                 auto sec = std::chrono::seconds(1);
 110                 jobsCv.wait_for(lock, 5*sec, [this, &timeout]{
 111                                 if (!removedJobs.empty()) {
 112                                         timeout = false;
 113                                         return true;
 114                                 }
 115                                 return false;});
 116
 117                 if (timeout) {
 118                         ERROR(SINK, "job: " + job + ", result: time out");
 119                         return false;
 120                 }
 121
 122                 while(!removedJobs.empty()) {
 123                         bool match = (removedJobs.front().job == job);
 124                         bool done = (removedJobs.front().result == "done");
 125                         removedJobs.pop_front();
 126                         if (match)
 127                                 return done;
 128                 }
 129         };
 130 }
 131
 132 void JobWatch::jobRemoved(const dbus::Variant& parameters)
 133 {
 134         uint32_t id;
 135         const char* job;
 136         const char* unit;
 137         const char* result;
 138         parameters.get("(uoss)", &id, &job, &unit, &result);
 139         INFO(SINK, "id:" + std::to_string(id) + " job:" + job + " unit:" + unit + " result:" + result);
 140
 141         {
 142                 std::lock_guard<std::mutex> guard(jobsMutex);
 143                 removedJobs.emplace_back(id, job, unit, result);
 144         }
 145         jobsCv.notify_one();
 146 }
 147
 148 void stopSystemdUnits()
 149 {
 150         dbus::Connection& systemDBus = dbus::Connection::getSystem();
 151         dbus::VariantIterator iter;
 152         std::vector<std::string> preprocessUnits;
 153         std::set<std::string> unitsToStop;
 154
 155         auto stopUnit = [&systemDBus](const std::string &unit) {
 156                 JobWatch watch(systemDBus);
 157                 INFO(SINK, "Stopping unit: " + unit);
 158                 const char* job = NULL;
 159                 try {
 160                         systemDBus.methodcall("org.freedesktop.systemd1",
 161                                                                         "/org/freedesktop/systemd1",
 162                                                                         "org.freedesktop.systemd1.Manager",
 163                                                                         "StopUnit",
 164                                                                         -1, "(o)", "(ss)", unit.c_str(), "flush").get("(o)", &job);
 165                         INFO(SINK, "Waiting for job: " + std::string(job));
 166                         if (!watch.waitForJob(job))
 167                                 ERROR(SINK, "Stopping unit: " + unit + " failed");
 168                 } catch (runtime::Exception &e) {
 169                         ERROR(SINK, std::string(e.what()));
 170                 }
 171         };
 172
 173         try {
 174                 systemDBus.methodcall("org.freedesktop.systemd1",
 175                                                                 "/org/freedesktop/systemd1",
 176                                                                 "org.freedesktop.systemd1.Manager",
 177                                                                 "ListUnits",
 178                                                                 -1, "(a(ssssssouso))", "").get("(a(ssssssouso))", &iter);
 179         } catch (runtime::Exception &e) {
 180                 ERROR(SINK, "Get list of systemd unit : " + std::string(e.what()));
 181         }
 182
 183         while (1) {
 184                 unsigned int dataUnit;
 185                 char *dataStr[9];
 186                 int ret;
 187                 ret = iter.get("(ssssssouso)", dataStr, dataStr + 1, dataStr + 2,
 188                                                 dataStr + 3, dataStr + 4, dataStr + 5,
 189                                                 dataStr + 6, &dataUnit, dataStr + 7, dataStr + 8);
 190                 if (!ret)
 191                         break;
 192
 193                 std::string unitName(dataStr[0]);
 194                 if (unitName == "security-manager.socket" ||
 195                                 unitName == "connman.socket" ||
 196                                 unitName == "msg-server.socket") {
 197                         preprocessUnits.insert(preprocessUnits.begin(), unitName);
 198                 } else if (unitName.compare(0, 5, "user@") == 0 ||
 199                                 unitName == "tlm.service" ||
 200                                 unitName == "resourced.service" ||
 201                                 unitName == "security-manager.service") {
 202                         preprocessUnits.push_back(unitName);
 203                 }
 204         }
 205
 206         for (auto unit : preprocessUnits) {
 207                 stopUnit(unit);
 208         }
 209
 210         for (pid_t pid : runtime::FileUser::getList(INTERNAL_PATH, true)) {
 211                 try {
 212                         char *unit = nullptr;
 213                         systemDBus.methodcall("org.freedesktop.systemd1",
 214                                                                         "/org/freedesktop/systemd1",
 215                                                                         "org.freedesktop.systemd1.Manager",
 216                                                                         "GetUnitByPID",
 217                                                                         -1, "(o)", "(u)", (unsigned int)pid)
 218                                                                                 .get("(o)", &unit);
 219
 220                         char* tmp  = NULL;
 221                         int err = sd_bus_path_decode(unit, "/org/freedesktop/systemd1/unit", &tmp);
 222                         if (err <= 0 || tmp == NULL) {
 223                                 ERROR(SINK, "Failed to decode unit name: " + std::string(unit) + " error: " +
 224                                             std::to_string(err));
 225                                 continue;
 226                         }
 227                         std::string unescapedName(tmp);
 228                         free(tmp);
 229
 230                         if (unescapedName.find("dbus", 0, 4) == std::string::npos)
 231                                 unitsToStop.insert(unescapedName);
 232                 } catch (runtime::Exception &e) {
 233                         ERROR(SINK, "Killing process: " + std::to_string(pid));
 234                         ::kill(pid, SIGKILL);
 235                 }
 236         }
 237
 238         for (auto unit : unitsToStop) {
 239                 stopUnit(unit);
 240         }
 241 }
 242
 243 void showProgressUI(const std::string type)
 244 {
 245         dbus::Connection& systemDBus = dbus::Connection::getSystem();
 246         std::string unit("ode-progress-ui@"+type+".service");
 247
 248         JobWatch watch(systemDBus);
 249         INFO(SINK, "Start unit: " + unit);
 250
 251         const char* job = NULL;
 252         systemDBus.methodcall("org.freedesktop.systemd1",
 253                                                         "/org/freedesktop/systemd1",
 254                                                         "org.freedesktop.systemd1.Manager",
 255                                                         "StartUnit",
 256                                                         -1, "(o)", "(ss)", unit.c_str(), "replace").get("(o)", &job);
 257
 258         INFO(SINK, "Waiting for job: " + std::string(job));
 259         if (!watch.waitForJob(job))
 260                 ERROR(SINK, "Starting unit: " + unit + " failed");
 261 }
 262
 263 unsigned int getOptions()
 264 {
 265         unsigned int result = 0;
 266         int value;
 267
 268         value = 0;
 269         ::vconf_get_bool(VCONFKEY_ODE_FAST_ENCRYPTION, &value);
 270         if (value) {
 271                 result |= InternalEncryption::Option::IncludeUnusedRegion;
 272         }
 273
 274         return result;
 275 }
 276
 277 void setOptions(unsigned int options)
 278 {
 279         bool value;
 280
 281         if (options & InternalEncryption::Option::IncludeUnusedRegion) {
 282                 value = true;
 283         } else {
 284                 value = false;
 285         }
 286         ::vconf_set_bool(VCONFKEY_ODE_FAST_ENCRYPTION, value);
 287 }
 288
 289 void execAndWait(const std::string &path, std::vector<std::string> &args)
 290 {
 291         runtime::Process proc(path, args);
 292         int ret = proc.execute();
 293         if (ret < 0)
 294                 ERROR(SINK, path + " failed for " + args.back());
 295
 296         ret = proc.waitForFinished();
 297         if (ret < 0 || !WIFEXITED(ret) || WEXITSTATUS(ret) != 0)
 298                 ERROR(SINK, path + " failed for " + args.back());
 299 }
 300
 301 bool isPartitionTerminated(const std::string &partition)
 302 {
 303         bool ret = true;
 304         const std::string cmd("fuser -m " + partition + " | grep -o '[0-9]*'");
 305         char *line = nullptr;
 306         size_t len = 0;
 307
 308         FILE *fp = ::popen(cmd.c_str(), "r");
 309         if (fp == nullptr) {
 310                 ERROR(SINK, "Failed to get processes on partition");
 311                 return false;
 312         }
 313
 314         if (::getline(&line, &len, fp) != -1)
 315                 ret = false;
 316
 317         ::free(line);
 318         ::pclose(fp);
 319
 320         return ret;
 321 }
 322
 323 void unmountInternalStorage(const std::string& source)
 324 {
 325         if (::umount2("/opt/usr", MNT_DETACH) == -1) {
 326                 if (errno != EBUSY && errno != EINVAL) {
 327                         throw runtime::Exception("umount() error : " + runtime::GetSystemErrorMessage());
 328                 }
 329         }
 330
 331         do {
 332                 ::sync();
 333                 static const char *fuserPath = "/usr/bin/fuser";
 334                 std::vector<std::string> args = {
 335                         fuserPath, "-m", "-k", "-s", "-SIGTERM", source,
 336                 };
 337                 execAndWait(fuserPath, args);
 338                 ::usleep((useconds_t)((unsigned int)(500)*1000));
 339
 340                 args[4] = "-SIGKILL";
 341                 execAndWait(fuserPath, args);
 342                 ::usleep((useconds_t)((unsigned int)(200)*1000));
 343         } while (!isPartitionTerminated(source));
 344 }
 345
 346 }
 347
 348 InternalEncryptionServer::InternalEncryptionServer(ServerContext& srv,
 349                                                                                                    KeyServer& key) :
 350         server(srv),
 351         keyServer(key)
 352 {
 353         server.expose(this, PRIVILEGE_PLATFORM, (int)(InternalEncryptionServer::setMountPassword)(std::string));
 354         server.expose(this, PRIVILEGE_PLATFORM, (int)(InternalEncryptionServer::mount)(std::vector<unsigned char>, unsigned int));
 355         server.expose(this, PRIVILEGE_PLATFORM, (int)(InternalEncryptionServer::umount)());
 356         server.expose(this, PRIVILEGE_PLATFORM, (int)(InternalEncryptionServer::isMounted)());
 357         server.expose(this, PRIVILEGE_PLATFORM, (int)(InternalEncryptionServer::encrypt)(std::string, unsigned int));
 358         server.expose(this, PRIVILEGE_PLATFORM, (int)(InternalEncryptionServer::decrypt)(std::string));
 359         server.expose(this, "", (int)(InternalEncryptionServer::isPasswordInitialized)());
 360         server.expose(this, PRIVILEGE_PLATFORM, (int)(InternalEncryptionServer::recovery)());
 361         server.expose(this, PRIVILEGE_PLATFORM, (int)(InternalEncryptionServer::initPassword)(std::string));
 362         server.expose(this, PRIVILEGE_PLATFORM, (int)(InternalEncryptionServer::cleanPassword)(std::string));
 363         server.expose(this, PRIVILEGE_PLATFORM, (int)(InternalEncryptionServer::changePassword)(std::string, std::string));
 364         server.expose(this, PRIVILEGE_PLATFORM, (int)(InternalEncryptionServer::verifyPassword)(std::string));
 365         server.expose(this, "", (int)(InternalEncryptionServer::getState)());
 366         server.expose(this, "", (unsigned int)(InternalEncryptionServer::getSupportedOptions)());
 367         server.expose(this, "", (std::string)(InternalEncryptionServer::getDevicePath)());
 368
 369         server.createNotification("InternalEncryptionServer::mount");
 370
 371         std::string source = findDevPath();
 372
 373         if (getState() == State::Encrypted) {
 374                 //"error_partially_encrypted"
 375                 if (!FileFooter::exist(source) && !UpgradeSupport::checkUpgradeFlag()) {
 376                         // Trigger key migration process
 377                         UpgradeSupport::createUpgradeFlag();
 378                 }
 379         }
 380
 381         engine.reset(new INTERNAL_ENGINE(
 382                 source, INTERNAL_PATH,
 383                 ProgressBar([](int v) {
 384                         ::vconf_set_str(VCONFKEY_ODE_ENCRYPT_PROGRESS,
 385                                                         std::to_string(v).c_str());
 386                 })
 387         ));
 388 }
 389
 390 InternalEncryptionServer::~InternalEncryptionServer()
 391 {
 392 }
 393
 394 int InternalEncryptionServer::migrateMasterKey(const std::string& dev, const std::string& password)
 395 {
 396         try {
 397                 BinaryData masterKey = UpgradeSupport::loadMasterKey(dev);
 398
 399                 // encrypt the master key with given password
 400                 return keyServer.changePassword2(dev, masterKey, password);
 401         } catch (const runtime::Exception&) {
 402                 ERROR(SINK, "Failed to load the master key stored during upgrade.");
 403         }
 404
 405         return error::Unknown;
 406 }
 407
 408 int InternalEncryptionServer::setMountPassword(const std::string& password)
 409 {
 410         const std::string& dev = engine->getSource();
 411
 412         // check if upgrade flag exists
 413         if (UpgradeSupport::checkUpgradeFlag()) {
 414                 INFO(SINK, "Upgrade flag detected.");
 415
 416                 int rc = migrateMasterKey(dev, password);
 417                 if (rc != error::None)
 418                         return rc;
 419                 UpgradeSupport::removeUpgradeFlag();
 420         }
 421
 422         return keyServer.get(dev, password, mountKey);
 423 }
 424
 425 int InternalEncryptionServer::mount(const std::vector<unsigned char> &mk, unsigned int options)
 426 {
 427         if (mountKey.empty() && mk.empty()) {
 428                 ERROR(SINK, "You need to set master key first.");
 429                 return error::NoData;
 430         }
 431
 432         BinaryData key = mk.empty() ? mountKey : mk;
 433         mountKey.clear();
 434
 435         if (getState() != State::Encrypted) {
 436                 ERROR(SINK, "Cannot mount, SD partition's state incorrect.");
 437                 return error::NoSuchDevice;
 438         }
 439
 440         if (engine->isMounted()) {
 441                 ERROR(SINK, "Partition already mounted.");
 442                 return error::None;
 443         }
 444
 445         INFO(SINK, "Mounting internal storage.");
 446         try {
 447                 engine->mount(key, getOptions());
 448
 449                 server.notify("InternalEncryptionServer::mount");
 450
 451                 runtime::File("/tmp/.lazy_mount").create(O_WRONLY);
 452                 runtime::File("/tmp/.unlock_mnt").create(O_WRONLY);
 453         } catch (runtime::Exception &e) {
 454                 ERROR(SINK, "Mount failed: " + std::string(e.what()));
 455                 return error::Unknown;
 456         }
 457
 458         return error::None;
 459 }
 460
 461 int InternalEncryptionServer::isMounted()
 462 {
 463         int ret = 0;
 464         try {
 465                 ret = engine->isMounted() ? 1 : 0;
 466         } catch (runtime::Exception &e) {
 467                 ERROR(SINK, "Failed to access the mount flag");
 468                 return error::Unknown;
 469         }
 470         return ret;
 471 }
 472
 473 int InternalEncryptionServer::umount()
 474 {
 475         if (getState() != State::Encrypted) {
 476                 ERROR(SINK, "Cannot umount, partition's state incorrect.");
 477                 return error::NoSuchDevice;
 478         }
 479
 480         if (!engine->isMounted()) {
 481                 ERROR(SINK, "Partition already umounted.");
 482                 return error::None;
 483         }
 484
 485         INFO(SINK, "Closing all processes using internal storage.");
 486         try {
 487                 stopSystemdUnits();
 488                 INFO(SINK, "Umounting internal storage.");
 489                 unmountInternalStorage("/dev/mapper/userdata");
 490                 engine->umount();
 491         } catch (runtime::Exception &e) {
 492                 ERROR(SINK, "Umount failed: " + std::string(e.what()));
 493                 return error::Unknown;
 494         }
 495
 496         return error::None;
 497 }
 498
 499 int InternalEncryptionServer::encrypt(const std::string& password, unsigned int options)
 500 {
 501         if (getState() != State::Unencrypted) {
 502                 ERROR(SINK, "Cannot encrypt, partition's state incorrect.");
 503                 return error::NoSuchDevice;
 504         }
 505
 506         BinaryData masterKey;
 507         int ret = keyServer.get(engine->getSource(), password, masterKey);
 508         if (ret != error::None)
 509                 return ret;
 510
 511         auto encryptWorker = [masterKey, options, this]() {
 512                 try {
 513                         if (::device_power_request_lock(POWER_LOCK_DISPLAY, 0) != 0)
 514                                 ERROR(SINK, "Failed to request to lock display");
 515
 516                         showProgressUI("encrypt");
 517                         ::sleep(1);
 518
 519                         runtime::File file("/opt/etc/.odeprogress");
 520                         file.create(0640);
 521
 522                         std::string source = engine->getSource();
 523                         auto mntPaths = findMountPointsByDevice(source);
 524
 525                         if (!mntPaths.empty()) {
 526                                 INFO(SINK, "Closing all processes using internal storage.");
 527                                 stopSystemdUnits();
 528
 529                                 INFO(SINK, "Unmounting internal storage.");
 530                                 unmountInternalStorage(source);
 531                         }
 532
 533                         INFO(SINK, "Encryption started.");
 534                         ::vconf_set_str(VCONFKEY_ODE_CRYPTO_STATE, "error_partially_encrypted");
 535                         try {
 536                                 engine->encrypt(masterKey, options);
 537                         } catch (runtime::Exception &e) {
 538                                 ERROR(SINK, e.what());
 539                                 if (!engine->isStarted()) {
 540                                         ::vconf_set_str(VCONFKEY_ODE_CRYPTO_STATE, "unencrypted");
 541                                         file.remove();
 542                                 }
 543                                 ::sync();
 544                                 ::reboot(RB_AUTOBOOT);
 545                         }
 546                         setOptions(options & getSupportedOptions());
 547
 548                         INFO(SINK, "Encryption completed.");
 549                         ::vconf_set_str(VCONFKEY_ODE_CRYPTO_STATE, "encrypted");
 550                         server.notify("InternalEncryptionServer::mount");
 551
 552                         file.remove();
 553
 554                         INFO(SINK, "Syncing disk and rebooting.");
 555                         ::sync();
 556                         ::reboot(RB_AUTOBOOT);
 557                 } catch (runtime::Exception &e) {
 558                         ERROR(SINK, "Encryption failed: " + std::string(e.what()));
 559                 }
 560         };
 561
 562         std::thread asyncWork(encryptWorker);
 563         asyncWork.detach();
 564
 565         return error::None;
 566 }
 567
 568 int InternalEncryptionServer::decrypt(const std::string& password)
 569 {
 570         if (getState() != State::Encrypted) {
 571                 ERROR(SINK, "Cannot decrypt, partition's state incorrect.");
 572                 return error::NoSuchDevice;
 573         }
 574
 575         // check if key migration is needed
 576         if (UpgradeSupport::checkUpgradeFlag()) {
 577                 INFO(SINK, "Upgrade flag detected.");
 578                 const std::string& dev = engine->getSource();
 579                 int rc = migrateMasterKey(dev, password);
 580                 if (rc == error::None)
 581                         UpgradeSupport::removeUpgradeFlag();
 582         }
 583
 584         BinaryData masterKey;
 585         int ret = keyServer.get(engine->getSource(), password, masterKey);
 586         if (ret != error::None)
 587                 return ret;
 588
 589         auto decryptWorker = [masterKey, this]() {
 590                 try {
 591                         if (::device_power_request_lock(POWER_LOCK_DISPLAY, 0) != 0)
 592                                 ERROR(SINK, "Failed to request to lock display");
 593
 594                         showProgressUI("decrypt");
 595                         ::sleep(1);
 596
 597                         runtime::File file("/opt/etc/.odeprogress");
 598                         file.create(0640);
 599
 600                         if (engine->isMounted()) {
 601                                 INFO(SINK, "Closing all processes using internal storage.");
 602                                 stopSystemdUnits();
 603
 604                                 INFO(SINK, "Umounting internal storage.");
 605                                 unmountInternalStorage("/dev/mapper/userdata");
 606                                 engine->umount();
 607                         }
 608
 609                         INFO(SINK, "Decryption started.");
 610                         ::vconf_set_str(VCONFKEY_ODE_CRYPTO_STATE, "error_partially_decrypted");
 611                         try {
 612                                 engine->decrypt(masterKey, getOptions());
 613                         } catch (runtime::Exception &e) {
 614                                 ERROR(SINK, e.what());
 615                                 if (!engine->isStarted()) {
 616                                         ::vconf_set_str(VCONFKEY_ODE_CRYPTO_STATE, "encrypted");
 617                                         file.remove();
 618                                 }
 619                                 ::sync();
 620                                 ::reboot(RB_AUTOBOOT);
 621                         }
 622
 623                         INFO(SINK, "Decryption complete.");
 624                         ::vconf_set_str(VCONFKEY_ODE_CRYPTO_STATE, "unencrypted");
 625
 626                         file.remove();
 627
 628                         INFO(SINK, "Syncing disk and rebooting.");
 629                         ::sync();
 630                         ::reboot(RB_AUTOBOOT);
 631                 } catch (runtime::Exception &e) {
 632                         ERROR(SINK, "Decryption failed: " + std::string(e.what()));
 633                 }
 634         };
 635
 636         std::thread asyncWork(decryptWorker);
 637         asyncWork.detach();
 638
 639         return error::None;
 640 }
 641
 642 int InternalEncryptionServer::recovery()
 643 {
 644         int state = getState();
 645
 646         if (state == State::Unencrypted)
 647                 return error::NoSuchDevice;
 648
 649         runtime::File file("/opt/.factoryreset");
 650         file.create(0640);
 651
 652         ::sync();
 653         try {
 654                 dbus::Connection& systemDBus = dbus::Connection::getSystem();
 655                 systemDBus.methodcall("org.tizen.system.deviced",
 656                                                                 "/Org/Tizen/System/DeviceD/Power",
 657                                                                 "org.tizen.system.deviced.power",
 658                                                                 "reboot",
 659                                                                 -1, "()", "(si)", "reboot", 0);
 660         } catch (runtime::Exception &e) {
 661                 ::reboot(RB_AUTOBOOT);
 662         }
 663         return error::None;
 664 }
 665
 666 int InternalEncryptionServer::isPasswordInitialized()
 667 {
 668         return keyServer.isInitialized(engine->getSource());
 669 }
 670
 671 int InternalEncryptionServer::initPassword(const std::string& password)
 672 {
 673         return keyServer.init(engine->getSource(), password, Key::DEFAULT_256BIT);
 674 }
 675
 676 int InternalEncryptionServer::cleanPassword(const std::string& password)
 677 {
 678         return keyServer.remove(engine->getSource(), password);
 679 }
 680
 681 int InternalEncryptionServer::changePassword(const std::string& oldPassword,
 682                                                                                 const std::string& newPassword)
 683 {
 684         return keyServer.changePassword(engine->getSource(), oldPassword, newPassword);
 685 }
 686
 687 int InternalEncryptionServer::verifyPassword(const std::string& password)
 688 {
 689         return keyServer.verifyPassword(engine->getSource(), password);
 690 }
 691
 692 int InternalEncryptionServer::getState()
 693 {
 694         char *value = ::vconf_get_str(VCONFKEY_ODE_CRYPTO_STATE);
 695         if (value == NULL) {
 696                 throw runtime::Exception("Failed to get vconf value.");
 697         }
 698
 699         std::string valueStr(value);
 700         free(value);
 701
 702         if (valueStr == "encrypted")
 703                 return State::Encrypted;
 704         else if (valueStr == "unencrypted")
 705                 return State::Unencrypted;
 706         else if (valueStr == "error_partially_encrypted" || valueStr == "error_partially_decrypted")
 707                 return State::Corrupted;
 708
 709         return State::NotSupported;
 710 }
 711
 712 unsigned int InternalEncryptionServer::getSupportedOptions()
 713 {
 714         return engine->getSupportedOptions();
 715 }
 716
 717 std::string InternalEncryptionServer::getDevicePath() const
 718 {
 719         return engine->getSource();
 720 }
 721
 722 } // namespace ode