2 * Copyright (c) 2015 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 <sys/mount.h>
21 #include <sys/reboot.h>
24 #include <tzplatform_config.h>
25 #include <klay/process.h>
26 #include <klay/file-user.h>
27 #include <klay/filesystem.h>
28 #include <klay/dbus/connection.h>
29 #include <klay/audit/logger.h>
32 #include "progress-bar.h"
33 #include "engine/encryption/dmcrypt-engine.h"
34 #include "key-manager/key-manager.h"
36 #include "rmi/internal-encryption.h"
38 #define INTERNAL_ENGINE DMCryptEngine
39 #define INTERNAL_DEV "/dev/mmcblk0p25"
40 #define INTERNAL_PATH "/opt/usr"
41 #define INTERNAL_STATE_VCONF_KEY VCONFKEY_ODE_CRYPTO_STATE
42 #define INTERNAL_OPTION_ONLY_USED_REGION_VCONF_KEY VCONFKEY_ODE_FAST_ENCRYPTION
44 #define PRIVILEGE_PLATFORM "http://tizen.org/privilege/internal/default/platform"
46 const std::string PROG_FACTORY_RESET = "/usr/bin/dbus-send";
47 const std::vector<std::string> wipeCommand = {
52 "--dest=com.samsung.factoryreset",
53 "/com/samsung/factoryreset",
54 "com.samsung.factoryreset.start.setting"
61 std::unique_ptr<INTERNAL_ENGINE> engine;
63 void stopSystemdUserSessions() {
64 std::vector<std::string> userSessionServices;
65 dbus::Connection& systemDBus = dbus::Connection::getSystem();
66 dbus::VariantIterator iter;
68 systemDBus.methodcall("org.freedesktop.systemd1",
69 "/org/freedesktop/systemd1",
70 "org.freedesktop.systemd1.Manager",
72 -1, "(a(ssssssouso))", "")
73 .get("(a(ssssssouso))", &iter);
76 unsigned int dataUint;
80 ret = iter.get("(ssssssouso)", dataStr, dataStr + 1, dataStr + 2,
81 dataStr + 3, dataStr + 4, dataStr + 5,
82 dataStr + 6, &dataUint, dataStr + 7,
89 std::string service(dataStr[0]);
90 if (service.compare(0, 5, "user@") == 0) {
91 userSessionServices.push_back(service);
95 for (const std::string& service : userSessionServices) {
96 INFO("Stop service - " + service);
97 systemDBus.methodcall("org.freedesktop.systemd1",
98 "/org/freedesktop/systemd1",
99 "org.freedesktop.systemd1.Manager",
101 -1, "", "(ss)", service.c_str(), "flush");
105 void stopDependedSystemdServices()
107 dbus::Connection& systemDBus = dbus::Connection::getSystem();
108 std::set<std::string> servicesToStop;
110 for (pid_t pid : runtime::FileUser::getList(INTERNAL_PATH, true)) {
113 systemDBus.methodcall("org.freedesktop.systemd1",
114 "/org/freedesktop/systemd1",
115 "org.freedesktop.systemd1.Manager",
117 -1, "(o)", "(u)", (unsigned int)pid)
118 .get("(o)", &service);
119 servicesToStop.insert(service);
120 } catch (runtime::Exception &e) {
121 INFO("Close process - " + std::to_string(pid));
122 ::kill(pid, SIGKILL);
126 for (const std::string& service : servicesToStop) {
127 INFO("Close service - " + service);
128 systemDBus.methodcall("org.freedesktop.systemd1",
130 "org.freedesktop.systemd1.Unit",
132 -1, "", "(s)", "flush");
136 void showProgressUI(const std::string type) {
137 ::tzplatform_set_user(::tzplatform_getuid(TZ_SYS_DEFAULT_USER));
138 std::string defaultUserHome(::tzplatform_getenv(TZ_USER_HOME));
139 ::tzplatform_reset_user();
141 runtime::File shareDirectory("/opt/home/root/share");
142 if (!shareDirectory.exists()) {
143 shareDirectory.makeDirectory(true);
146 runtime::File elmConfigDir(shareDirectory.getPath() + "/.elementary");
147 if (!elmConfigDir.exists()) {
148 runtime::File defaultElmConfigDir(defaultUserHome + "/share/.elementary");
149 defaultElmConfigDir.copyTo(shareDirectory.getPath());
152 std::vector<std::string> args = {
153 "ode", "progress", type, "Internal"
156 runtime::Process proc("/usr/bin/ode", args);
160 unsigned int getOptions()
162 unsigned int result = 0;
166 ::vconf_get_bool(INTERNAL_OPTION_ONLY_USED_REGION_VCONF_KEY, &value);
168 result |= InternalEncryption::Option::IncludeUnusedRegion;
174 void setOptions(unsigned int options)
178 if (options & InternalEncryption::Option::IncludeUnusedRegion) {
183 ::vconf_set_bool(INTERNAL_OPTION_ONLY_USED_REGION_VCONF_KEY, value);
188 InternalEncryption::InternalEncryption(ODEControlContext& ctx) :
191 context.expose(this, PRIVILEGE_PLATFORM, (int)(InternalEncryption::mount)(std::string));
192 context.expose(this, PRIVILEGE_PLATFORM, (int)(InternalEncryption::umount)());
193 context.expose(this, PRIVILEGE_PLATFORM, (int)(InternalEncryption::encrypt)(std::string, unsigned int));
194 context.expose(this, PRIVILEGE_PLATFORM, (int)(InternalEncryption::decrypt)(std::string));
195 context.expose(this, "", (int)(InternalEncryption::isPasswordInitialized)());
196 context.expose(this, PRIVILEGE_PLATFORM, (int)(InternalEncryption::initPassword)(std::string));
197 context.expose(this, PRIVILEGE_PLATFORM, (int)(InternalEncryption::cleanPassword)(std::string));
198 context.expose(this, PRIVILEGE_PLATFORM, (int)(InternalEncryption::changePassword)(std::string, std::string));
199 context.expose(this, PRIVILEGE_PLATFORM, (int)(InternalEncryption::verifyPassword)(std::string));
200 context.expose(this, "", (int)(InternalEncryption::getState)());
201 context.expose(this, "", (unsigned int)(InternalEncryption::getSupportedOptions)());
203 engine.reset(new INTERNAL_ENGINE(
204 INTERNAL_DEV, INTERNAL_PATH,
205 ProgressBar([](int v) {
206 ::vconf_set_str(VCONFKEY_ODE_ENCRYPT_PROGRESS,
207 std::to_string(v).c_str());
212 InternalEncryption::~InternalEncryption()
216 int InternalEncryption::mount(const std::string& password)
218 if (getState() != State::Encrypted) {
222 KeyManager::data pwData(password.begin(), password.end());
223 KeyManager keyManager(engine->getKeyMeta());
225 if (!keyManager.verifyPassword(pwData)) {
229 engine->mount(keyManager.getMasterKey(pwData), getOptions());
233 int InternalEncryption::umount()
235 if (getState() != State::Encrypted) {
239 INFO("Close all processes using internal storage...");
240 stopDependedSystemdServices();
241 INFO("Umount internal storage...");
247 int InternalEncryption::encrypt(const std::string& password, unsigned int options)
249 if (getState() != State::Unencrypted) {
253 KeyManager::data pwData(password.begin(), password.end());
254 KeyManager keyManager(engine->getKeyMeta());
256 if (!keyManager.verifyPassword(pwData)) {
260 KeyManager::data MasterKey = keyManager.getMasterKey(pwData);
261 auto encryptWorker = [MasterKey, options, this]() {
263 showProgressUI("Encrypting");
265 INFO("Close all user sessions...");
266 stopSystemdUserSessions();
267 INFO("Close all processes using internal storage...");
268 stopDependedSystemdServices();
269 INFO("Umount internal storage...");
270 while (::umount(INTERNAL_PATH) == -1) {
271 if (errno != EBUSY) {
272 throw runtime::Exception("Umount error - " + std::to_string(errno));
274 stopDependedSystemdServices();
277 INFO("Encryption started...");
278 engine->encrypt(MasterKey, options);
279 setOptions(options & getSupportedOptions());
280 INFO("Sync disk...");
282 INFO("Encryption completed");
284 ::vconf_set_str(INTERNAL_STATE_VCONF_KEY, "encrypted");
285 ::reboot(RB_AUTOBOOT);
286 } catch (runtime::Exception &e) {
287 ::vconf_set_str(INTERNAL_STATE_VCONF_KEY, "error_partially_encrypted");
288 ERROR("Encryption failed - " + std::string(e.what()));
292 std::thread asyncWork(encryptWorker);
298 int InternalEncryption::decrypt(const std::string& password)
300 if (getState() != State::Encrypted) {
304 KeyManager::data pwData(password.begin(), password.end());
305 KeyManager keyManager(engine->getKeyMeta());
307 if (!keyManager.verifyPassword(pwData)) {
311 KeyManager::data MasterKey = keyManager.getMasterKey(pwData);
312 auto decryptWorker = [MasterKey, this]() {
314 showProgressUI("Decrypting");
316 INFO("Close all processes using internal storage...");
317 stopDependedSystemdServices();
318 INFO("Umount internal storage...");
323 } catch (runtime::Exception& e) {
324 stopDependedSystemdServices();
328 INFO("Decryption started...");
329 engine->decrypt(MasterKey, getOptions());
330 INFO("Sync disk...");
332 INFO("Decryption completed");
334 ::vconf_set_str(INTERNAL_STATE_VCONF_KEY, "unencrypted");
335 ::reboot(RB_AUTOBOOT);
336 } catch (runtime::Exception &e) {
337 ::vconf_set_str(INTERNAL_STATE_VCONF_KEY, "error_partially_encrypted");
338 ERROR("Decryption failed - " + std::string(e.what()));
342 std::thread asyncWork(decryptWorker);
348 int InternalEncryption::recovery()
350 if (getState() != State::Unencrypted) {
355 runtime::Process proc(PROG_FACTORY_RESET, wipeCommand);
356 if (proc.execute() == -1) {
357 ERROR("Failed to launch factory-reset");
364 int InternalEncryption::isPasswordInitialized()
366 if (engine->isKeyMetaSet()) {
372 int InternalEncryption::initPassword(const std::string& password)
374 KeyManager::data pwData(password.begin(), password.end());
375 KeyManager keyManager;
377 keyManager.initPassword(pwData);
378 engine->setKeyMeta(keyManager.serialize());
382 int InternalEncryption::cleanPassword(const std::string& password)
384 KeyManager::data pwData(password.begin(), password.end());
385 KeyManager keyManager(engine->getKeyMeta());
387 if (!keyManager.verifyPassword(pwData)) {
391 engine->clearKeyMeta();
395 int InternalEncryption::changePassword(const std::string& oldPassword,
396 const std::string& newPassword)
398 KeyManager::data oldPwData(oldPassword.begin(), oldPassword.end());
399 KeyManager::data newPwData(newPassword.begin(), newPassword.end());
400 KeyManager keyManager(engine->getKeyMeta());
402 if (!keyManager.verifyPassword(oldPwData)) {
406 keyManager.changePassword(oldPwData, newPwData);
407 engine->setKeyMeta(keyManager.serialize());
412 int InternalEncryption::verifyPassword(const std::string& password)
414 KeyManager::data pwData(password.begin(), password.end());
415 KeyManager keyManager(engine->getKeyMeta());
417 if (keyManager.verifyPassword(pwData)) {
423 int InternalEncryption::getState()
425 char *value = ::vconf_get_str(INTERNAL_STATE_VCONF_KEY);
427 throw runtime::Exception("Failed to get vconf value");
430 std::string valueStr(value);
433 if (valueStr == "encrypted") {
434 return State::Encrypted;
435 } else if (valueStr == "unencrypted") {
436 return State::Unencrypted;
438 return State::Corrupted;
444 unsigned int InternalEncryption::getSupportedOptions()
446 return engine->getSupportedOptions();