2 * Copyright (c) 2015-2017 Samsung Electronics Co., Ltd All Rights Reserved
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
8 * http://www.apache.org/licenses/LICENSE-2.0
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
20 #include <condition_variable>
26 #include <sys/mount.h>
27 #include <sys/reboot.h>
33 #include <tzplatform_config.h>
34 #include <klay/process.h>
35 #include <klay/file-user.h>
36 #include <klay/filesystem.h>
37 #include <klay/dbus/connection.h>
38 #include <klay/error.h>
42 #include "progress-bar.h"
43 #include "rmi/common.h"
45 #include "internal-encryption.h"
46 #include "internal-encryption-common.h"
52 const char *PRIVILEGE_PLATFORM = "http://tizen.org/privilege/internal/default/platform";
54 // TODO: see recovery()
55 const std::string PROG_FACTORY_RESET = "/usr/bin/dbus-send";
56 const std::vector<std::string> wipeCommand = {
61 "--dest=com.samsung.factoryreset",
62 "/com/samsung/factoryreset",
63 "com.samsung.factoryreset.start.setting"
67 // watches systemd jobs
70 explicit JobWatch(dbus::Connection& systemDBus);
73 bool waitForJob(const std::string& job);
76 void jobRemoved(const dbus::Variant& parameters);
80 const std::string& job,
81 const std::string& unit,
82 const std::string& result) : id(id), job(job), unit(unit), result(result) {}
89 dbus::Connection::SubscriptionId id;
90 dbus::Connection& systemDBus;
91 std::list<Job> removedJobs;
93 std::condition_variable jobsCv;
96 JobWatch::JobWatch(dbus::Connection& systemDBus) : systemDBus(systemDBus) {
97 auto callback = [this](dbus::Variant parameters) {
98 this->jobRemoved(parameters);
101 id = systemDBus.subscribeSignal("",
102 "/org/freedesktop/systemd1",
103 "org.freedesktop.systemd1.Manager",
108 JobWatch::~JobWatch() {
109 systemDBus.unsubscribeSignal(id);
112 bool JobWatch::waitForJob(const std::string& job) {
114 std::unique_lock<std::mutex> lock(jobsMutex);
115 jobsCv.wait(lock, [this]{ return !removedJobs.empty(); });
117 while(!removedJobs.empty()) {
118 bool match = (removedJobs.front().job == job);
119 bool done = (removedJobs.front().result == "done");
120 removedJobs.pop_front();
127 void JobWatch::jobRemoved(const dbus::Variant& parameters)
133 parameters.get("(uoss)", &id, &job, &unit, &result);
134 INFO(SINK, "id:" + std::to_string(id) + " job:" + job + " unit:" + unit + " result:" + result);
137 std::lock_guard<std::mutex> guard(jobsMutex);
138 removedJobs.emplace_back(id, job, unit, result);
143 void stopKnownSystemdUnits()
145 std::vector<std::string> knownSystemdUnits;
146 dbus::Connection& systemDBus = dbus::Connection::getSystem();
147 dbus::VariantIterator iter;
149 systemDBus.methodcall("org.freedesktop.systemd1",
150 "/org/freedesktop/systemd1",
151 "org.freedesktop.systemd1.Manager",
153 -1, "(a(ssssssouso))", "")
154 .get("(a(ssssssouso))", &iter);
157 unsigned int dataUint;
161 ret = iter.get("(ssssssouso)", dataStr, dataStr + 1, dataStr + 2,
162 dataStr + 3, dataStr + 4, dataStr + 5,
163 dataStr + 6, &dataUint, dataStr + 7,
170 std::string unit(dataStr[0]);
171 if (unit == "security-manager.socket") {
172 knownSystemdUnits.insert(knownSystemdUnits.begin(), unit);
173 } else if (unit.compare(0, 5, "user@") == 0 ||
174 unit == "tlm.service" ||
175 unit == "resourced.service" ||
176 unit == "security-manager.service") {
177 knownSystemdUnits.push_back(unit);
181 JobWatch watch(systemDBus);
183 for (const std::string& unit : knownSystemdUnits) {
184 INFO(SINK, "Stopping unit: " + unit);
185 const char* job = NULL;
186 systemDBus.methodcall("org.freedesktop.systemd1",
187 "/org/freedesktop/systemd1",
188 "org.freedesktop.systemd1.Manager",
190 -1, "(o)", "(ss)", unit.c_str(), "flush").get("(o)", &job);
191 INFO(SINK, "Waiting for job: " + std::string(job));
192 if (!watch.waitForJob(job))
193 throw runtime::Exception("Stopping unit: " + unit + " failed");
197 void stopDependedSystemdUnits()
199 dbus::Connection& systemDBus = dbus::Connection::getSystem();
200 std::set<std::string> unitsToStop;
202 for (pid_t pid : runtime::FileUser::getList(INTERNAL_PATH, true)) {
205 systemDBus.methodcall("org.freedesktop.systemd1",
206 "/org/freedesktop/systemd1",
207 "org.freedesktop.systemd1.Manager",
209 -1, "(o)", "(u)", (unsigned int)pid)
211 unitsToStop.insert(unit);
212 } catch (runtime::Exception &e) {
213 INFO(SINK, "Killing process: " + std::to_string(pid));
214 ::kill(pid, SIGKILL);
218 JobWatch watch(systemDBus);
220 for (const std::string& unit : unitsToStop) {
221 INFO(SINK, "Stopping unit: " + unit);
222 const char* job = NULL;
223 systemDBus.methodcall("org.freedesktop.systemd1",
225 "org.freedesktop.systemd1.Unit",
227 -1, "(o)", "(s)", "flush").get("(o)", &job);
228 INFO(SINK, "Waiting for job: " + std::string(job));
229 if (!watch.waitForJob(job))
230 throw runtime::Exception("Stopping unit: " + unit + " failed");
234 void showProgressUI(const std::string type)
236 ::tzplatform_set_user(::tzplatform_getuid(TZ_SYS_DEFAULT_USER));
237 std::string defaultUserHome(::tzplatform_getenv(TZ_USER_HOME));
238 ::tzplatform_reset_user();
241 runtime::File shareDirectory("/opt/home/root/share");
242 if (!shareDirectory.exists()) {
243 shareDirectory.makeDirectory(true);
246 runtime::File elmConfigDir(shareDirectory.getPath() + "/.elementary");
247 if (!elmConfigDir.exists()) {
248 runtime::File defaultElmConfigDir(defaultUserHome + "/share/.elementary");
249 defaultElmConfigDir.copyTo(shareDirectory.getPath());
251 } catch (runtime::Exception &e) {
252 ERROR(SINK, "Failed to set up elm configuration: " + std::string(e.what()));
255 std::vector<std::string> args = {
256 "ode", "progress", type, "Internal"
259 runtime::Process proc("/usr/bin/ode", args);
263 unsigned int getOptions()
265 unsigned int result = 0;
269 ::vconf_get_bool(VCONFKEY_ODE_FAST_ENCRYPTION, &value);
271 result |= InternalEncryption::Option::IncludeUnusedRegion;
277 void setOptions(unsigned int options)
281 if (options & InternalEncryption::Option::IncludeUnusedRegion) {
286 ::vconf_set_bool(VCONFKEY_ODE_FAST_ENCRYPTION, value);
289 void unmountInternalStorage(const std::string& source)
292 auto mntPaths = findMountPointsByDevice(source);
296 bool unmounted = true;
297 for(const auto& path : mntPaths) {
298 INFO(SINK, "Unmounting " + path);
299 if (::umount(path.c_str()) == -1) {
300 // If it's busy or was already unmounted ignore the error
301 if (errno != EBUSY && errno != EINVAL) {
302 throw runtime::Exception("umount() error: " + runtime::GetSystemErrorMessage());
308 stopDependedSystemdUnits();
314 InternalEncryptionServer::InternalEncryptionServer(ServerContext& srv,
319 server.expose(this, PRIVILEGE_PLATFORM, (int)(InternalEncryptionServer::setMountPassword)(std::string));
320 server.expose(this, PRIVILEGE_PLATFORM, (int)(InternalEncryptionServer::mount)());
321 server.expose(this, PRIVILEGE_PLATFORM, (int)(InternalEncryptionServer::umount)());
322 server.expose(this, PRIVILEGE_PLATFORM, (int)(InternalEncryptionServer::encrypt)(std::string, unsigned int));
323 server.expose(this, PRIVILEGE_PLATFORM, (int)(InternalEncryptionServer::decrypt)(std::string));
324 server.expose(this, "", (int)(InternalEncryptionServer::isPasswordInitialized)());
325 server.expose(this, PRIVILEGE_PLATFORM, (int)(InternalEncryptionServer::initPassword)(std::string));
326 server.expose(this, PRIVILEGE_PLATFORM, (int)(InternalEncryptionServer::cleanPassword)(std::string));
327 server.expose(this, PRIVILEGE_PLATFORM, (int)(InternalEncryptionServer::changePassword)(std::string, std::string));
328 server.expose(this, PRIVILEGE_PLATFORM, (int)(InternalEncryptionServer::verifyPassword)(std::string));
329 server.expose(this, "", (int)(InternalEncryptionServer::getState)());
330 server.expose(this, "", (unsigned int)(InternalEncryptionServer::getSupportedOptions)());
331 server.expose(this, "", (std::string)(InternalEncryptionServer::getDevicePath)());
333 server.createNotification("InternalEncryptionServer::mount");
335 std::string source = findDevPath();
337 engine.reset(new INTERNAL_ENGINE(
338 source, INTERNAL_PATH,
339 ProgressBar([](int v) {
340 ::vconf_set_str(VCONFKEY_ODE_ENCRYPT_PROGRESS,
341 std::to_string(v).c_str());
346 InternalEncryptionServer::~InternalEncryptionServer()
350 int InternalEncryptionServer::setMountPassword(const std::string& password)
352 return keyServer.get(engine->getSource(), password, mountKey);
355 int InternalEncryptionServer::mount()
357 if (mountKey.empty()) {
358 ERROR(SINK, "You need to call set_mount_password() first.");
359 return error::NoData;
362 BinaryData key = mountKey;
365 if (getState() != State::Encrypted) {
366 INFO(SINK, "Cannot mount, SD partition's state incorrect.");
367 return error::NoSuchDevice;
370 if (engine->isMounted()) {
371 INFO(SINK, "Partition already mounted.");
375 INFO(SINK, "Mounting internal storage.");
377 engine->mount(key, getOptions());
379 server.notify("InternalEncryptionServer::mount");
381 runtime::File("/tmp/.lazy_mount").create(O_WRONLY);
382 runtime::File("/tmp/.unlock_mnt").create(O_WRONLY);
383 } catch (runtime::Exception &e) {
384 ERROR(SINK, "Mount failed: " + std::string(e.what()));
385 return error::Unknown;
391 int InternalEncryptionServer::umount()
393 if (getState() != State::Encrypted) {
394 ERROR(SINK, "Cannot umount, partition's state incorrect.");
395 return error::NoSuchDevice;
398 if (!engine->isMounted()) {
399 INFO(SINK, "Partition already umounted.");
403 INFO(SINK, "Closing all processes using internal storage.");
405 stopDependedSystemdUnits();
406 INFO(SINK, "Umounting internal storage.");
408 } catch (runtime::Exception &e) {
409 ERROR(SINK, "Umount failed: " + std::string(e.what()));
410 return error::Unknown;
416 int InternalEncryptionServer::encrypt(const std::string& password, unsigned int options)
418 if (getState() != State::Unencrypted) {
419 ERROR(SINK, "Cannot encrypt, partition's state incorrect.");
420 return error::NoSuchDevice;
423 BinaryData masterKey;
424 int ret = keyServer.get(engine->getSource(), password, masterKey);
425 if (ret != error::None)
428 auto encryptWorker = [masterKey, options, this]() {
430 INFO(SINK, "Closing all known systemd services that might be using internal storage.");
431 stopKnownSystemdUnits();
433 std::string source = engine->getSource();
434 auto mntPaths = findMountPointsByDevice(source);
436 if (!mntPaths.empty()) {
437 INFO(SINK, "Closing all processes using internal storage.");
438 stopDependedSystemdUnits();
440 INFO(SINK, "Unmounting internal storage.");
441 unmountInternalStorage(source);
444 showProgressUI("Encrypting");
446 INFO(SINK, "Encryption started.");
447 ::vconf_set_str(VCONFKEY_ODE_CRYPTO_STATE, "error_partially_encrypted");
448 engine->encrypt(masterKey, options);
449 setOptions(options & getSupportedOptions());
451 INFO(SINK, "Encryption completed.");
452 ::vconf_set_str(VCONFKEY_ODE_CRYPTO_STATE, "encrypted");
453 server.notify("InternalEncryptionServer::mount");
455 INFO(SINK, "Syncing disk and rebooting.");
457 ::reboot(RB_AUTOBOOT);
458 } catch (runtime::Exception &e) {
459 ERROR(SINK, "Encryption failed: " + std::string(e.what()));
463 std::thread asyncWork(encryptWorker);
469 int InternalEncryptionServer::decrypt(const std::string& password)
471 if (getState() != State::Encrypted) {
472 ERROR(SINK, "Cannot decrypt, partition's state incorrect.");
473 return error::NoSuchDevice;
476 BinaryData masterKey;
477 int ret = keyServer.get(engine->getSource(), password, masterKey);
478 if (ret != error::None)
481 auto decryptWorker = [masterKey, this]() {
483 if (engine->isMounted()) {
484 INFO(SINK, "Closing all known systemd services that might be using internal storage.");
485 stopKnownSystemdUnits();
486 INFO(SINK, "Closing all processes using internal storage.");
487 stopDependedSystemdUnits();
489 INFO(SINK, "Umounting internal storage.");
494 } catch (runtime::Exception& e) {
495 stopDependedSystemdUnits();
500 showProgressUI("Decrypting");
502 INFO(SINK, "Decryption started.");
503 ::vconf_set_str(VCONFKEY_ODE_CRYPTO_STATE, "error_partially_encrypted");
504 engine->decrypt(masterKey, getOptions());
506 INFO(SINK, "Decryption complete.");
507 ::vconf_set_str(VCONFKEY_ODE_CRYPTO_STATE, "unencrypted");
509 INFO(SINK, "Syncing disk and rebooting.");
511 ::reboot(RB_AUTOBOOT);
512 } catch (runtime::Exception &e) {
513 ERROR(SINK, "Decryption failed: " + std::string(e.what()));
517 std::thread asyncWork(decryptWorker);
523 int InternalEncryptionServer::recovery()
525 if (getState() == State::Unencrypted) {
526 return error::NoSuchDevice;
530 runtime::Process proc(PROG_FACTORY_RESET, wipeCommand);
531 if (proc.execute() == -1) {
532 ERROR(SINK, "Failed to launch factory-reset");
533 return error::WrongPassword;
539 int InternalEncryptionServer::isPasswordInitialized()
541 return keyServer.isInitialized(engine->getSource());
544 int InternalEncryptionServer::initPassword(const std::string& password)
546 return keyServer.init(engine->getSource(), password, Key::DEFAULT_256BIT);
549 int InternalEncryptionServer::cleanPassword(const std::string& password)
551 return keyServer.remove(engine->getSource(), password);
554 int InternalEncryptionServer::changePassword(const std::string& oldPassword,
555 const std::string& newPassword)
557 return keyServer.changePassword(engine->getSource(), oldPassword, newPassword);
560 int InternalEncryptionServer::verifyPassword(const std::string& password)
562 return keyServer.verifyPassword(engine->getSource(), password);
565 int InternalEncryptionServer::getState()
567 char *value = ::vconf_get_str(VCONFKEY_ODE_CRYPTO_STATE);
569 throw runtime::Exception("Failed to get vconf value.");
572 std::string valueStr(value);
575 if (valueStr == "encrypted") {
576 return State::Encrypted;
577 } else if (valueStr == "unencrypted") {
578 return State::Unencrypted;
580 return State::Corrupted;
584 unsigned int InternalEncryptionServer::getSupportedOptions()
586 return engine->getSupportedOptions();
589 std::string InternalEncryptionServer::getDevicePath() const
591 return engine->getSource();