services/devicepolicy/java/com/android/server/devicepolicy/DevicePolicyManagerService.java

   1 /*
   2  * Copyright (C) 2010 The Android Open Source Project
   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
  17 package com.android.server.devicepolicy;
  18
  19 import static android.Manifest.permission.MANAGE_CA_CERTIFICATES;
  20 import static android.app.admin.DevicePolicyManager.PASSWORD_QUALITY_COMPLEX;
  21 import static android.app.admin.DevicePolicyManager.WIPE_EXTERNAL_STORAGE;
  22 import static android.app.admin.DevicePolicyManager.WIPE_RESET_PROTECTION_DATA;
  23 import static android.content.pm.PackageManager.GET_UNINSTALLED_PACKAGES;
  24
  25 import static com.android.internal.widget.LockPatternUtils.StrongAuthTracker.STRONG_AUTH_REQUIRED_AFTER_DPM_LOCK_NOW;
  26 import static org.xmlpull.v1.XmlPullParser.END_DOCUMENT;
  27 import static org.xmlpull.v1.XmlPullParser.END_TAG;
  28 import static org.xmlpull.v1.XmlPullParser.TEXT;
  29
  30 import android.Manifest.permission;
  31 import android.accessibilityservice.AccessibilityServiceInfo;
  32 import android.accounts.Account;
  33 import android.accounts.AccountManager;
  34 import android.annotation.IntDef;
  35 import android.annotation.NonNull;
  36 import android.annotation.Nullable;
  37 import android.annotation.UserIdInt;
  38 import android.app.Activity;
  39 import android.app.ActivityManager;
  40 import android.app.ActivityManagerNative;
  41 import android.app.AlarmManager;
  42 import android.app.AppGlobals;
  43 import android.app.IActivityManager;
  44 import android.app.Notification;
  45 import android.app.NotificationManager;
  46 import android.app.PendingIntent;
  47 import android.app.StatusBarManager;
  48 import android.app.admin.DeviceAdminInfo;
  49 import android.app.admin.DeviceAdminReceiver;
  50 import android.app.admin.DevicePolicyManager;
  51 import android.app.admin.DevicePolicyManagerInternal;
  52 import android.app.admin.IDevicePolicyManager;
  53 import android.app.admin.SecurityLog;
  54 import android.app.admin.SecurityLog.SecurityEvent;
  55 import android.app.admin.SystemUpdatePolicy;
  56 import android.app.backup.IBackupManager;
  57 import android.app.trust.TrustManager;
  58 import android.content.BroadcastReceiver;
  59 import android.content.ComponentName;
  60 import android.content.Context;
  61 import android.content.Intent;
  62 import android.content.IntentFilter;
  63 import android.content.pm.ActivityInfo;
  64 import android.content.pm.ApplicationInfo;
  65 import android.content.pm.IPackageManager;
  66 import android.content.pm.PackageInfo;
  67 import android.content.pm.PackageManager;
  68 import android.content.pm.PackageManager.NameNotFoundException;
  69 import android.content.pm.PackageManagerInternal;
  70 import android.content.pm.ParceledListSlice;
  71 import android.content.pm.ResolveInfo;
  72 import android.content.pm.ServiceInfo;
  73 import android.content.pm.UserInfo;
  74 import android.database.ContentObserver;
  75 import android.graphics.Bitmap;
  76 import android.graphics.Color;
  77 import android.media.AudioManager;
  78 import android.media.IAudioService;
  79 import android.net.ConnectivityManager;
  80 import android.net.ProxyInfo;
  81 import android.net.Uri;
  82 import android.net.wifi.WifiInfo;
  83 import android.net.wifi.WifiManager;
  84 import android.os.AsyncTask;
  85 import android.os.Binder;
  86 import android.os.Build;
  87 import android.os.Bundle;
  88 import android.os.Environment;
  89 import android.os.FileUtils;
  90 import android.os.Handler;
  91 import android.os.IBinder;
  92 import android.os.Looper;
  93 import android.os.ParcelFileDescriptor;
  94 import android.os.PersistableBundle;
  95 import android.os.PowerManager;
  96 import android.os.PowerManagerInternal;
  97 import android.os.Process;
  98 import android.os.RecoverySystem;
  99 import android.os.RemoteCallback;
 100 import android.os.RemoteException;
 101 import android.os.ServiceManager;
 102 import android.os.SystemClock;
 103 import android.os.SystemProperties;
 104 import android.os.UserHandle;
 105 import android.os.UserManager;
 106 import android.os.UserManagerInternal;
 107 import android.os.storage.StorageManager;
 108 import android.provider.ContactsContract.QuickContact;
 109 import android.provider.ContactsInternal;
 110 import android.provider.Settings;
 111 import android.security.Credentials;
 112 import android.security.IKeyChainAliasCallback;
 113 import android.security.IKeyChainService;
 114 import android.security.KeyChain;
 115 import android.security.KeyChain.KeyChainConnection;
 116 import android.service.persistentdata.PersistentDataBlockManager;
 117 import android.telephony.TelephonyManager;
 118 import android.text.TextUtils;
 119 import android.util.ArrayMap;
 120 import android.util.ArraySet;
 121 import android.util.Log;
 122 import android.util.Pair;
 123 import android.util.Slog;
 124 import android.util.SparseArray;
 125 import android.util.Xml;
 126 import android.view.IWindowManager;
 127 import android.view.accessibility.AccessibilityManager;
 128 import android.view.accessibility.IAccessibilityManager;
 129 import android.view.inputmethod.InputMethodInfo;
 130 import android.view.inputmethod.InputMethodManager;
 131
 132 import com.android.internal.R;
 133 import com.android.internal.annotations.VisibleForTesting;
 134 import com.android.internal.statusbar.IStatusBarService;
 135 import com.android.internal.util.FastXmlSerializer;
 136 import com.android.internal.util.JournaledFile;
 137 import com.android.internal.util.ParcelableString;
 138 import com.android.internal.util.Preconditions;
 139 import com.android.internal.util.XmlUtils;
 140 import com.android.internal.widget.LockPatternUtils;
 141 import com.android.server.LocalServices;
 142 import com.android.server.SystemService;
 143 import com.android.server.devicepolicy.DevicePolicyManagerService.ActiveAdmin.TrustAgentInfo;
 144 import com.android.server.pm.UserRestrictionsUtils;
 145 import com.google.android.collect.Sets;
 146
 147 import org.xmlpull.v1.XmlPullParser;
 148 import org.xmlpull.v1.XmlPullParserException;
 149 import org.xmlpull.v1.XmlSerializer;
 150
 151 import java.io.ByteArrayInputStream;
 152 import java.io.File;
 153 import java.io.FileDescriptor;
 154 import java.io.FileInputStream;
 155 import java.io.FileNotFoundException;
 156 import java.io.FileOutputStream;
 157 import java.io.IOException;
 158 import java.io.PrintWriter;
 159 import java.lang.annotation.Retention;
 160 import java.lang.annotation.RetentionPolicy;
 161 import java.nio.charset.StandardCharsets;
 162 import java.security.cert.CertificateException;
 163 import java.security.cert.CertificateFactory;
 164 import java.security.cert.X509Certificate;
 165 import java.text.DateFormat;
 166 import java.util.ArrayList;
 167 import java.util.Arrays;
 168 import java.util.Collections;
 169 import java.util.Date;
 170 import java.util.List;
 171 import java.util.Map.Entry;
 172 import java.util.Set;
 173 import java.util.concurrent.atomic.AtomicBoolean;
 174
 175 /**
 176  * Implementation of the device policy APIs.
 177  */
 178 public class DevicePolicyManagerService extends IDevicePolicyManager.Stub {
 179
 180     private static final String LOG_TAG = "DevicePolicyManagerService";
 181
 182     private static final boolean VERBOSE_LOG = false; // DO NOT SUBMIT WITH TRUE
 183
 184     private static final String DEVICE_POLICIES_XML = "device_policies.xml";
 185
 186     private static final String TAG_ACCEPTED_CA_CERTIFICATES = "accepted-ca-certificate";
 187
 188     private static final String TAG_LOCK_TASK_COMPONENTS = "lock-task-component";
 189
 190     private static final String TAG_STATUS_BAR = "statusbar";
 191
 192     private static final String ATTR_DISABLED = "disabled";
 193
 194     private static final String ATTR_NAME = "name";
 195
 196     private static final String DO_NOT_ASK_CREDENTIALS_ON_BOOT_XML =
 197             "do-not-ask-credentials-on-boot";
 198
 199     private static final String TAG_AFFILIATION_ID = "affiliation-id";
 200
 201     private static final String TAG_ADMIN_BROADCAST_PENDING = "admin-broadcast-pending";
 202
 203     private static final String ATTR_VALUE = "value";
 204
 205     private static final String TAG_INITIALIZATION_BUNDLE = "initialization-bundle";
 206
 207     private static final int REQUEST_EXPIRE_PASSWORD = 5571;
 208
 209     private static final long MS_PER_DAY = 86400 * 1000;
 210
 211     private static final long EXPIRATION_GRACE_PERIOD_MS = 5 * MS_PER_DAY; // 5 days, in ms
 212
 213     private static final String ACTION_EXPIRED_PASSWORD_NOTIFICATION
 214             = "com.android.server.ACTION_EXPIRED_PASSWORD_NOTIFICATION";
 215
 216     private static final int MONITORING_CERT_NOTIFICATION_ID = R.plurals.ssl_ca_cert_warning;
 217     private static final int PROFILE_WIPED_NOTIFICATION_ID = 1001;
 218
 219     private static final String ATTR_PERMISSION_PROVIDER = "permission-provider";
 220     private static final String ATTR_SETUP_COMPLETE = "setup-complete";
 221     private static final String ATTR_PROVISIONING_STATE = "provisioning-state";
 222     private static final String ATTR_PERMISSION_POLICY = "permission-policy";
 223     private static final String ATTR_DEVICE_PROVISIONING_CONFIG_APPLIED =
 224             "device-provisioning-config-applied";
 225
 226     private static final String ATTR_DELEGATED_CERT_INSTALLER = "delegated-cert-installer";
 227     private static final String ATTR_APPLICATION_RESTRICTIONS_MANAGER
 228             = "application-restrictions-manager";
 229
 230     /**
 231      *  System property whose value is either "true" or "false", indicating whether
 232      */
 233     private static final String PROPERTY_DEVICE_OWNER_PRESENT = "ro.device_owner";
 234
 235     private static final int STATUS_BAR_DISABLE_MASK =
 236             StatusBarManager.DISABLE_EXPAND |
 237             StatusBarManager.DISABLE_NOTIFICATION_ICONS |
 238             StatusBarManager.DISABLE_NOTIFICATION_ALERTS |
 239             StatusBarManager.DISABLE_SEARCH;
 240
 241     private static final int STATUS_BAR_DISABLE2_MASK =
 242             StatusBarManager.DISABLE2_QUICK_SETTINGS;
 243
 244     private static final Set<String> SECURE_SETTINGS_WHITELIST;
 245     private static final Set<String> SECURE_SETTINGS_DEVICEOWNER_WHITELIST;
 246     private static final Set<String> GLOBAL_SETTINGS_WHITELIST;
 247     private static final Set<String> GLOBAL_SETTINGS_DEPRECATED;
 248     static {
 249         SECURE_SETTINGS_WHITELIST = new ArraySet<>();
 250         SECURE_SETTINGS_WHITELIST.add(Settings.Secure.DEFAULT_INPUT_METHOD);
 251         SECURE_SETTINGS_WHITELIST.add(Settings.Secure.SKIP_FIRST_USE_HINTS);
 252         SECURE_SETTINGS_WHITELIST.add(Settings.Secure.INSTALL_NON_MARKET_APPS);
 253
 254         SECURE_SETTINGS_DEVICEOWNER_WHITELIST = new ArraySet<>();
 255         SECURE_SETTINGS_DEVICEOWNER_WHITELIST.addAll(SECURE_SETTINGS_WHITELIST);
 256         SECURE_SETTINGS_DEVICEOWNER_WHITELIST.add(Settings.Secure.LOCATION_MODE);
 257
 258         GLOBAL_SETTINGS_WHITELIST = new ArraySet<>();
 259         GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.ADB_ENABLED);
 260         GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.AUTO_TIME);
 261         GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.AUTO_TIME_ZONE);
 262         GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.DATA_ROAMING);
 263         GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.USB_MASS_STORAGE_ENABLED);
 264         GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.WIFI_SLEEP_POLICY);
 265         GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.STAY_ON_WHILE_PLUGGED_IN);
 266         GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.WIFI_DEVICE_OWNER_CONFIGS_LOCKDOWN);
 267
 268         GLOBAL_SETTINGS_DEPRECATED = new ArraySet<>();
 269         GLOBAL_SETTINGS_DEPRECATED.add(Settings.Global.BLUETOOTH_ON);
 270         GLOBAL_SETTINGS_DEPRECATED.add(Settings.Global.DEVELOPMENT_SETTINGS_ENABLED);
 271         GLOBAL_SETTINGS_DEPRECATED.add(Settings.Global.MODE_RINGER);
 272         GLOBAL_SETTINGS_DEPRECATED.add(Settings.Global.NETWORK_PREFERENCE);
 273         GLOBAL_SETTINGS_DEPRECATED.add(Settings.Global.WIFI_ON);
 274     }
 275
 276     /**
 277      * Keyguard features that when set on a managed profile that doesn't have its own challenge will
 278      * affect the profile's parent user. These can also be set on the managed profile's parent DPM
 279      * instance.
 280      */
 281     private static final int PROFILE_KEYGUARD_FEATURES_AFFECT_OWNER =
 282             DevicePolicyManager.KEYGUARD_DISABLE_TRUST_AGENTS
 283             | DevicePolicyManager.KEYGUARD_DISABLE_FINGERPRINT;
 284
 285     /**
 286      * Keyguard features that when set on a profile affect the profile content or challenge only.
 287      * These cannot be set on the managed profile's parent DPM instance
 288      */
 289     private static final int PROFILE_KEYGUARD_FEATURES_PROFILE_ONLY =
 290             DevicePolicyManager.KEYGUARD_DISABLE_UNREDACTED_NOTIFICATIONS;
 291
 292     /** Keyguard features that are allowed to be set on a managed profile */
 293     private static final int PROFILE_KEYGUARD_FEATURES =
 294             PROFILE_KEYGUARD_FEATURES_AFFECT_OWNER | PROFILE_KEYGUARD_FEATURES_PROFILE_ONLY;
 295
 296     private static final int CODE_OK = 0;
 297     private static final int CODE_HAS_DEVICE_OWNER = 1;
 298     private static final int CODE_USER_HAS_PROFILE_OWNER = 2;
 299     private static final int CODE_USER_NOT_RUNNING = 3;
 300     private static final int CODE_USER_SETUP_COMPLETED = 4;
 301     private static final int CODE_NONSYSTEM_USER_EXISTS = 5;
 302     private static final int CODE_ACCOUNTS_NOT_EMPTY = 6;
 303     private static final int CODE_NOT_SYSTEM_USER = 7;
 304
 305     @Retention(RetentionPolicy.SOURCE)
 306     @IntDef({ CODE_OK, CODE_HAS_DEVICE_OWNER, CODE_USER_HAS_PROFILE_OWNER, CODE_USER_NOT_RUNNING,
 307             CODE_USER_SETUP_COMPLETED, CODE_NOT_SYSTEM_USER })
 308     private @interface DeviceOwnerPreConditionCode {}
 309
 310     private static final int DEVICE_ADMIN_DEACTIVATE_TIMEOUT = 10000;
 311
 312     final Context mContext;
 313     final Injector mInjector;
 314     final IPackageManager mIPackageManager;
 315     final UserManager mUserManager;
 316     final UserManagerInternal mUserManagerInternal;
 317     final TelephonyManager mTelephonyManager;
 318     private final LockPatternUtils mLockPatternUtils;
 319
 320     /**
 321      * Contains (package-user) pairs to remove. An entry (p, u) implies that removal of package p
 322      * is requested for user u.
 323      */
 324     private final Set<Pair<String, Integer>> mPackagesToRemove =
 325             new ArraySet<Pair<String, Integer>>();
 326
 327     final LocalService mLocalService;
 328
 329     // Stores and loads state on device and profile owners.
 330     @VisibleForTesting
 331     final Owners mOwners;
 332
 333     private final Binder mToken = new Binder();
 334
 335     /**
 336      * Whether or not device admin feature is supported. If it isn't return defaults for all
 337      * public methods.
 338      */
 339     boolean mHasFeature;
 340
 341     private final SecurityLogMonitor mSecurityLogMonitor;
 342
 343     private final AtomicBoolean mRemoteBugreportServiceIsActive = new AtomicBoolean();
 344     private final AtomicBoolean mRemoteBugreportSharingAccepted = new AtomicBoolean();
 345
 346     private final Runnable mRemoteBugreportTimeoutRunnable = new Runnable() {
 347         @Override
 348         public void run() {
 349             if(mRemoteBugreportServiceIsActive.get()) {
 350                 onBugreportFailed();
 351             }
 352         }
 353     };
 354
 355     private final BroadcastReceiver mRemoteBugreportFinishedReceiver = new BroadcastReceiver() {
 356
 357         @Override
 358         public void onReceive(Context context, Intent intent) {
 359             if (DevicePolicyManager.ACTION_REMOTE_BUGREPORT_DISPATCH.equals(intent.getAction())
 360                     && mRemoteBugreportServiceIsActive.get()) {
 361                 onBugreportFinished(intent);
 362             }
 363         }
 364     };
 365
 366     private final BroadcastReceiver mRemoteBugreportConsentReceiver = new BroadcastReceiver() {
 367
 368         @Override
 369         public void onReceive(Context context, Intent intent) {
 370             String action = intent.getAction();
 371             mInjector.getNotificationManager().cancel(LOG_TAG,
 372                     RemoteBugreportUtils.NOTIFICATION_ID);
 373             if (DevicePolicyManager.ACTION_BUGREPORT_SHARING_ACCEPTED.equals(action)) {
 374                 onBugreportSharingAccepted();
 375             } else if (DevicePolicyManager.ACTION_BUGREPORT_SHARING_DECLINED.equals(action)) {
 376                 onBugreportSharingDeclined();
 377             }
 378             mContext.unregisterReceiver(mRemoteBugreportConsentReceiver);
 379         }
 380     };
 381
 382     public static final class Lifecycle extends SystemService {
 383         private DevicePolicyManagerService mService;
 384
 385         public Lifecycle(Context context) {
 386             super(context);
 387             mService = new DevicePolicyManagerService(context);
 388         }
 389
 390         @Override
 391         public void onStart() {
 392             publishBinderService(Context.DEVICE_POLICY_SERVICE, mService);
 393         }
 394
 395         @Override
 396         public void onBootPhase(int phase) {
 397             mService.systemReady(phase);
 398         }
 399
 400         @Override
 401         public void onStartUser(int userHandle) {
 402             mService.onStartUser(userHandle);
 403         }
 404     }
 405
 406     public static class DevicePolicyData {
 407         int mActivePasswordQuality = DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED;
 408         int mActivePasswordLength = 0;
 409         int mActivePasswordUpperCase = 0;
 410         int mActivePasswordLowerCase = 0;
 411         int mActivePasswordLetters = 0;
 412         int mActivePasswordNumeric = 0;
 413         int mActivePasswordSymbols = 0;
 414         int mActivePasswordNonLetter = 0;
 415         int mFailedPasswordAttempts = 0;
 416
 417         int mUserHandle;
 418         int mPasswordOwner = -1;
 419         long mLastMaximumTimeToLock = -1;
 420         boolean mUserSetupComplete = false;
 421         int mUserProvisioningState;
 422         int mPermissionPolicy;
 423
 424         boolean mDeviceProvisioningConfigApplied = false;
 425
 426         final ArrayMap<ComponentName, ActiveAdmin> mAdminMap = new ArrayMap<>();
 427         final ArrayList<ActiveAdmin> mAdminList = new ArrayList<>();
 428         final ArrayList<ComponentName> mRemovingAdmins = new ArrayList<>();
 429
 430         final ArraySet<String> mAcceptedCaCertificates = new ArraySet<>();
 431
 432         // This is the list of component allowed to start lock task mode.
 433         List<String> mLockTaskPackages = new ArrayList<>();
 434
 435         boolean mStatusBarDisabled = false;
 436
 437         ComponentName mRestrictionsProvider;
 438
 439         String mDelegatedCertInstallerPackage;
 440
 441         boolean doNotAskCredentialsOnBoot = false;
 442
 443         String mApplicationRestrictionsManagingPackage;
 444
 445         Set<String> mAffiliationIds = new ArraySet<>();
 446
 447         // Used for initialization of users created by createAndManageUsers.
 448         boolean mAdminBroadcastPending = false;
 449         PersistableBundle mInitBundle = null;
 450
 451         public DevicePolicyData(int userHandle) {
 452             mUserHandle = userHandle;
 453         }
 454     }
 455
 456     final SparseArray<DevicePolicyData> mUserData = new SparseArray<>();
 457
 458     final Handler mHandler;
 459
 460     BroadcastReceiver mReceiver = new BroadcastReceiver() {
 461         @Override
 462         public void onReceive(Context context, Intent intent) {
 463             final String action = intent.getAction();
 464             final int userHandle = intent.getIntExtra(Intent.EXTRA_USER_HANDLE,
 465                     getSendingUserId());
 466
 467             if (Intent.ACTION_BOOT_COMPLETED.equals(action)
 468                     && userHandle == mOwners.getDeviceOwnerUserId()
 469                     && getDeviceOwnerRemoteBugreportUri() != null) {
 470                 IntentFilter filterConsent = new IntentFilter();
 471                 filterConsent.addAction(DevicePolicyManager.ACTION_BUGREPORT_SHARING_DECLINED);
 472                 filterConsent.addAction(DevicePolicyManager.ACTION_BUGREPORT_SHARING_ACCEPTED);
 473                 mContext.registerReceiver(mRemoteBugreportConsentReceiver, filterConsent);
 474                 mInjector.getNotificationManager().notifyAsUser(LOG_TAG,
 475                         RemoteBugreportUtils.NOTIFICATION_ID,
 476                         RemoteBugreportUtils.buildNotification(mContext,
 477                                 DevicePolicyManager.NOTIFICATION_BUGREPORT_FINISHED_NOT_ACCEPTED),
 478                                 UserHandle.ALL);
 479             }
 480             if (Intent.ACTION_BOOT_COMPLETED.equals(action)
 481                     || ACTION_EXPIRED_PASSWORD_NOTIFICATION.equals(action)) {
 482                 if (VERBOSE_LOG) {
 483                     Slog.v(LOG_TAG, "Sending password expiration notifications for action "
 484                             + action + " for user " + userHandle);
 485                 }
 486                 mHandler.post(new Runnable() {
 487                     @Override
 488                     public void run() {
 489                         handlePasswordExpirationNotification(userHandle);
 490                     }
 491                 });
 492             }
 493             if (Intent.ACTION_USER_UNLOCKED.equals(action)
 494                     || Intent.ACTION_USER_STARTED.equals(action)
 495                     || KeyChain.ACTION_STORAGE_CHANGED.equals(action)) {
 496                 int userId = intent.getIntExtra(Intent.EXTRA_USER_HANDLE, UserHandle.USER_ALL);
 497                 new MonitoringCertNotificationTask().execute(userId);
 498             }
 499             if (Intent.ACTION_USER_ADDED.equals(action)) {
 500                 disableSecurityLoggingIfNotCompliant();
 501             } else if (Intent.ACTION_USER_REMOVED.equals(action)) {
 502                 disableSecurityLoggingIfNotCompliant();
 503                 removeUserData(userHandle);
 504             } else if (Intent.ACTION_USER_STARTED.equals(action)) {
 505                 synchronized (DevicePolicyManagerService.this) {
 506                     // Reset the policy data
 507                     mUserData.remove(userHandle);
 508                     sendAdminEnabledBroadcastLocked(userHandle);
 509                 }
 510                 handlePackagesChanged(null /* check all admins */, userHandle);
 511             } else if (Intent.ACTION_EXTERNAL_APPLICATIONS_UNAVAILABLE.equals(action)) {
 512                 handlePackagesChanged(null /* check all admins */, userHandle);
 513             } else if (Intent.ACTION_PACKAGE_CHANGED.equals(action)
 514                     || (Intent.ACTION_PACKAGE_ADDED.equals(action)
 515                             && intent.getBooleanExtra(Intent.EXTRA_REPLACING, false))) {
 516                 handlePackagesChanged(intent.getData().getSchemeSpecificPart(), userHandle);
 517             } else if (Intent.ACTION_PACKAGE_REMOVED.equals(action)
 518                     && !intent.getBooleanExtra(Intent.EXTRA_REPLACING, false)) {
 519                 handlePackagesChanged(intent.getData().getSchemeSpecificPart(), userHandle);
 520             } else if (Intent.ACTION_MANAGED_PROFILE_ADDED.equals(action)) {
 521                 clearWipeProfileNotification();
 522             }
 523         }
 524     };
 525
 526     static class ActiveAdmin {
 527         private static final String TAG_DISABLE_KEYGUARD_FEATURES = "disable-keyguard-features";
 528         private static final String TAG_TEST_ONLY_ADMIN = "test-only-admin";
 529         private static final String TAG_DISABLE_CAMERA = "disable-camera";
 530         private static final String TAG_DISABLE_CALLER_ID = "disable-caller-id";
 531         private static final String TAG_DISABLE_CONTACTS_SEARCH = "disable-contacts-search";
 532         private static final String TAG_DISABLE_BLUETOOTH_CONTACT_SHARING
 533                 = "disable-bt-contacts-sharing";
 534         private static final String TAG_DISABLE_SCREEN_CAPTURE = "disable-screen-capture";
 535         private static final String TAG_DISABLE_ACCOUNT_MANAGEMENT = "disable-account-management";
 536         private static final String TAG_REQUIRE_AUTO_TIME = "require_auto_time";
 537         private static final String TAG_FORCE_EPHEMERAL_USERS = "force_ephemeral_users";
 538         private static final String TAG_ACCOUNT_TYPE = "account-type";
 539         private static final String TAG_PERMITTED_ACCESSIBILITY_SERVICES
 540                 = "permitted-accessiblity-services";
 541         private static final String TAG_ENCRYPTION_REQUESTED = "encryption-requested";
 542         private static final String TAG_MANAGE_TRUST_AGENT_FEATURES = "manage-trust-agent-features";
 543         private static final String TAG_TRUST_AGENT_COMPONENT_OPTIONS = "trust-agent-component-options";
 544         private static final String TAG_TRUST_AGENT_COMPONENT = "component";
 545         private static final String TAG_PASSWORD_EXPIRATION_DATE = "password-expiration-date";
 546         private static final String TAG_PASSWORD_EXPIRATION_TIMEOUT = "password-expiration-timeout";
 547         private static final String TAG_GLOBAL_PROXY_EXCLUSION_LIST = "global-proxy-exclusion-list";
 548         private static final String TAG_GLOBAL_PROXY_SPEC = "global-proxy-spec";
 549         private static final String TAG_SPECIFIES_GLOBAL_PROXY = "specifies-global-proxy";
 550         private static final String TAG_PERMITTED_IMES = "permitted-imes";
 551         private static final String TAG_MAX_FAILED_PASSWORD_WIPE = "max-failed-password-wipe";
 552         private static final String TAG_MAX_TIME_TO_UNLOCK = "max-time-to-unlock";
 553         private static final String TAG_MIN_PASSWORD_NONLETTER = "min-password-nonletter";
 554         private static final String TAG_MIN_PASSWORD_SYMBOLS = "min-password-symbols";
 555         private static final String TAG_MIN_PASSWORD_NUMERIC = "min-password-numeric";
 556         private static final String TAG_MIN_PASSWORD_LETTERS = "min-password-letters";
 557         private static final String TAG_MIN_PASSWORD_LOWERCASE = "min-password-lowercase";
 558         private static final String TAG_MIN_PASSWORD_UPPERCASE = "min-password-uppercase";
 559         private static final String TAG_PASSWORD_HISTORY_LENGTH = "password-history-length";
 560         private static final String TAG_MIN_PASSWORD_LENGTH = "min-password-length";
 561         private static final String ATTR_VALUE = "value";
 562         private static final String TAG_PASSWORD_QUALITY = "password-quality";
 563         private static final String TAG_POLICIES = "policies";
 564         private static final String TAG_CROSS_PROFILE_WIDGET_PROVIDERS =
 565                 "cross-profile-widget-providers";
 566         private static final String TAG_PROVIDER = "provider";
 567         private static final String TAG_PACKAGE_LIST_ITEM  = "item";
 568         private static final String TAG_KEEP_UNINSTALLED_PACKAGES  = "keep-uninstalled-packages";
 569         private static final String TAG_USER_RESTRICTIONS = "user-restrictions";
 570         private static final String TAG_SHORT_SUPPORT_MESSAGE = "short-support-message";
 571         private static final String TAG_LONG_SUPPORT_MESSAGE = "long-support-message";
 572         private static final String TAG_PARENT_ADMIN = "parent-admin";
 573         private static final String TAG_ORGANIZATION_COLOR = "organization-color";
 574         private static final String TAG_ORGANIZATION_NAME = "organization-name";
 575
 576         final DeviceAdminInfo info;
 577
 578         int passwordQuality = DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED;
 579
 580         static final int DEF_MINIMUM_PASSWORD_LENGTH = 0;
 581         int minimumPasswordLength = DEF_MINIMUM_PASSWORD_LENGTH;
 582
 583         static final int DEF_PASSWORD_HISTORY_LENGTH = 0;
 584         int passwordHistoryLength = DEF_PASSWORD_HISTORY_LENGTH;
 585
 586         static final int DEF_MINIMUM_PASSWORD_UPPER_CASE = 0;
 587         int minimumPasswordUpperCase = DEF_MINIMUM_PASSWORD_UPPER_CASE;
 588
 589         static final int DEF_MINIMUM_PASSWORD_LOWER_CASE = 0;
 590         int minimumPasswordLowerCase = DEF_MINIMUM_PASSWORD_LOWER_CASE;
 591
 592         static final int DEF_MINIMUM_PASSWORD_LETTERS = 1;
 593         int minimumPasswordLetters = DEF_MINIMUM_PASSWORD_LETTERS;
 594
 595         static final int DEF_MINIMUM_PASSWORD_NUMERIC = 1;
 596         int minimumPasswordNumeric = DEF_MINIMUM_PASSWORD_NUMERIC;
 597
 598         static final int DEF_MINIMUM_PASSWORD_SYMBOLS = 1;
 599         int minimumPasswordSymbols = DEF_MINIMUM_PASSWORD_SYMBOLS;
 600
 601         static final int DEF_MINIMUM_PASSWORD_NON_LETTER = 0;
 602         int minimumPasswordNonLetter = DEF_MINIMUM_PASSWORD_NON_LETTER;
 603
 604         static final long DEF_MAXIMUM_TIME_TO_UNLOCK = 0;
 605         long maximumTimeToUnlock = DEF_MAXIMUM_TIME_TO_UNLOCK;
 606
 607         static final int DEF_MAXIMUM_FAILED_PASSWORDS_FOR_WIPE = 0;
 608         int maximumFailedPasswordsForWipe = DEF_MAXIMUM_FAILED_PASSWORDS_FOR_WIPE;
 609
 610         static final long DEF_PASSWORD_EXPIRATION_TIMEOUT = 0;
 611         long passwordExpirationTimeout = DEF_PASSWORD_EXPIRATION_TIMEOUT;
 612
 613         static final long DEF_PASSWORD_EXPIRATION_DATE = 0;
 614         long passwordExpirationDate = DEF_PASSWORD_EXPIRATION_DATE;
 615
 616         static final int DEF_KEYGUARD_FEATURES_DISABLED = 0; // none
 617
 618         int disabledKeyguardFeatures = DEF_KEYGUARD_FEATURES_DISABLED;
 619
 620         boolean encryptionRequested = false;
 621         boolean testOnlyAdmin = false;
 622         boolean disableCamera = false;
 623         boolean disableCallerId = false;
 624         boolean disableContactsSearch = false;
 625         boolean disableBluetoothContactSharing = true;
 626         boolean disableScreenCapture = false; // Can only be set by a device/profile owner.
 627         boolean requireAutoTime = false; // Can only be set by a device owner.
 628         boolean forceEphemeralUsers = false; // Can only be set by a device owner.
 629
 630         ActiveAdmin parentAdmin;
 631         final boolean isParent;
 632
 633         static class TrustAgentInfo {
 634             public PersistableBundle options;
 635             TrustAgentInfo(PersistableBundle bundle) {
 636                 options = bundle;
 637             }
 638         }
 639
 640         Set<String> accountTypesWithManagementDisabled = new ArraySet<>();
 641
 642         // The list of permitted accessibility services package namesas set by a profile
 643         // or device owner. Null means all accessibility services are allowed, empty means
 644         // none except system services are allowed.
 645         List<String> permittedAccessiblityServices;
 646
 647         // The list of permitted input methods package names as set by a profile or device owner.
 648         // Null means all input methods are allowed, empty means none except system imes are
 649         // allowed.
 650         List<String> permittedInputMethods;
 651
 652         // List of package names to keep cached.
 653         List<String> keepUninstalledPackages;
 654
 655         // TODO: review implementation decisions with frameworks team
 656         boolean specifiesGlobalProxy = false;
 657         String globalProxySpec = null;
 658         String globalProxyExclusionList = null;
 659
 660         ArrayMap<String, TrustAgentInfo> trustAgentInfos = new ArrayMap<>();
 661
 662         List<String> crossProfileWidgetProviders;
 663
 664         Bundle userRestrictions;
 665
 666         // Support text provided by the admin to display to the user.
 667         CharSequence shortSupportMessage = null;
 668         CharSequence longSupportMessage = null;
 669
 670         // Background color of confirm credentials screen. Default: teal.
 671         static final int DEF_ORGANIZATION_COLOR = Color.parseColor("#00796B");
 672         int organizationColor = DEF_ORGANIZATION_COLOR;
 673
 674         // Default title of confirm credentials screen
 675         String organizationName = null;
 676
 677         ActiveAdmin(DeviceAdminInfo _info, boolean parent) {
 678             info = _info;
 679             isParent = parent;
 680         }
 681
 682         ActiveAdmin getParentActiveAdmin() {
 683             Preconditions.checkState(!isParent);
 684
 685             if (parentAdmin == null) {
 686                 parentAdmin = new ActiveAdmin(info, /* parent */ true);
 687             }
 688             return parentAdmin;
 689         }
 690
 691         boolean hasParentActiveAdmin() {
 692             return parentAdmin != null;
 693         }
 694
 695         int getUid() { return info.getActivityInfo().applicationInfo.uid; }
 696
 697         public UserHandle getUserHandle() {
 698             return UserHandle.of(UserHandle.getUserId(info.getActivityInfo().applicationInfo.uid));
 699         }
 700
 701         void writeToXml(XmlSerializer out)
 702                 throws IllegalArgumentException, IllegalStateException, IOException {
 703             out.startTag(null, TAG_POLICIES);
 704             info.writePoliciesToXml(out);
 705             out.endTag(null, TAG_POLICIES);
 706             if (passwordQuality != DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED) {
 707                 out.startTag(null, TAG_PASSWORD_QUALITY);
 708                 out.attribute(null, ATTR_VALUE, Integer.toString(passwordQuality));
 709                 out.endTag(null, TAG_PASSWORD_QUALITY);
 710                 if (minimumPasswordLength != DEF_MINIMUM_PASSWORD_LENGTH) {
 711                     out.startTag(null, TAG_MIN_PASSWORD_LENGTH);
 712                     out.attribute(null, ATTR_VALUE, Integer.toString(minimumPasswordLength));
 713                     out.endTag(null, TAG_MIN_PASSWORD_LENGTH);
 714                 }
 715                 if(passwordHistoryLength != DEF_PASSWORD_HISTORY_LENGTH) {
 716                     out.startTag(null, TAG_PASSWORD_HISTORY_LENGTH);
 717                     out.attribute(null, ATTR_VALUE, Integer.toString(passwordHistoryLength));
 718                     out.endTag(null, TAG_PASSWORD_HISTORY_LENGTH);
 719                 }
 720                 if (minimumPasswordUpperCase != DEF_MINIMUM_PASSWORD_UPPER_CASE) {
 721                     out.startTag(null, TAG_MIN_PASSWORD_UPPERCASE);
 722                     out.attribute(null, ATTR_VALUE, Integer.toString(minimumPasswordUpperCase));
 723                     out.endTag(null, TAG_MIN_PASSWORD_UPPERCASE);
 724                 }
 725                 if (minimumPasswordLowerCase != DEF_MINIMUM_PASSWORD_LOWER_CASE) {
 726                     out.startTag(null, TAG_MIN_PASSWORD_LOWERCASE);
 727                     out.attribute(null, ATTR_VALUE, Integer.toString(minimumPasswordLowerCase));
 728                     out.endTag(null, TAG_MIN_PASSWORD_LOWERCASE);
 729                 }
 730                 if (minimumPasswordLetters != DEF_MINIMUM_PASSWORD_LETTERS) {
 731                     out.startTag(null, TAG_MIN_PASSWORD_LETTERS);
 732                     out.attribute(null, ATTR_VALUE, Integer.toString(minimumPasswordLetters));
 733                     out.endTag(null, TAG_MIN_PASSWORD_LETTERS);
 734                 }
 735                 if (minimumPasswordNumeric != DEF_MINIMUM_PASSWORD_NUMERIC) {
 736                     out.startTag(null, TAG_MIN_PASSWORD_NUMERIC);
 737                     out.attribute(null, ATTR_VALUE, Integer.toString(minimumPasswordNumeric));
 738                     out.endTag(null, TAG_MIN_PASSWORD_NUMERIC);
 739                 }
 740                 if (minimumPasswordSymbols != DEF_MINIMUM_PASSWORD_SYMBOLS) {
 741                     out.startTag(null, TAG_MIN_PASSWORD_SYMBOLS);
 742                     out.attribute(null, ATTR_VALUE, Integer.toString(minimumPasswordSymbols));
 743                     out.endTag(null, TAG_MIN_PASSWORD_SYMBOLS);
 744                 }
 745                 if (minimumPasswordNonLetter > DEF_MINIMUM_PASSWORD_NON_LETTER) {
 746                     out.startTag(null, TAG_MIN_PASSWORD_NONLETTER);
 747                     out.attribute(null, ATTR_VALUE, Integer.toString(minimumPasswordNonLetter));
 748                     out.endTag(null, TAG_MIN_PASSWORD_NONLETTER);
 749                 }
 750             }
 751             if (maximumTimeToUnlock != DEF_MAXIMUM_TIME_TO_UNLOCK) {
 752                 out.startTag(null, TAG_MAX_TIME_TO_UNLOCK);
 753                 out.attribute(null, ATTR_VALUE, Long.toString(maximumTimeToUnlock));
 754                 out.endTag(null, TAG_MAX_TIME_TO_UNLOCK);
 755             }
 756             if (maximumFailedPasswordsForWipe != DEF_MAXIMUM_FAILED_PASSWORDS_FOR_WIPE) {
 757                 out.startTag(null, TAG_MAX_FAILED_PASSWORD_WIPE);
 758                 out.attribute(null, ATTR_VALUE, Integer.toString(maximumFailedPasswordsForWipe));
 759                 out.endTag(null, TAG_MAX_FAILED_PASSWORD_WIPE);
 760             }
 761             if (specifiesGlobalProxy) {
 762                 out.startTag(null, TAG_SPECIFIES_GLOBAL_PROXY);
 763                 out.attribute(null, ATTR_VALUE, Boolean.toString(specifiesGlobalProxy));
 764                 out.endTag(null, TAG_SPECIFIES_GLOBAL_PROXY);
 765                 if (globalProxySpec != null) {
 766                     out.startTag(null, TAG_GLOBAL_PROXY_SPEC);
 767                     out.attribute(null, ATTR_VALUE, globalProxySpec);
 768                     out.endTag(null, TAG_GLOBAL_PROXY_SPEC);
 769                 }
 770                 if (globalProxyExclusionList != null) {
 771                     out.startTag(null, TAG_GLOBAL_PROXY_EXCLUSION_LIST);
 772                     out.attribute(null, ATTR_VALUE, globalProxyExclusionList);
 773                     out.endTag(null, TAG_GLOBAL_PROXY_EXCLUSION_LIST);
 774                 }
 775             }
 776             if (passwordExpirationTimeout != DEF_PASSWORD_EXPIRATION_TIMEOUT) {
 777                 out.startTag(null, TAG_PASSWORD_EXPIRATION_TIMEOUT);
 778                 out.attribute(null, ATTR_VALUE, Long.toString(passwordExpirationTimeout));
 779                 out.endTag(null, TAG_PASSWORD_EXPIRATION_TIMEOUT);
 780             }
 781             if (passwordExpirationDate != DEF_PASSWORD_EXPIRATION_DATE) {
 782                 out.startTag(null, TAG_PASSWORD_EXPIRATION_DATE);
 783                 out.attribute(null, ATTR_VALUE, Long.toString(passwordExpirationDate));
 784                 out.endTag(null, TAG_PASSWORD_EXPIRATION_DATE);
 785             }
 786             if (encryptionRequested) {
 787                 out.startTag(null, TAG_ENCRYPTION_REQUESTED);
 788                 out.attribute(null, ATTR_VALUE, Boolean.toString(encryptionRequested));
 789                 out.endTag(null, TAG_ENCRYPTION_REQUESTED);
 790             }
 791             if (testOnlyAdmin) {
 792                 out.startTag(null, TAG_TEST_ONLY_ADMIN);
 793                 out.attribute(null, ATTR_VALUE, Boolean.toString(testOnlyAdmin));
 794                 out.endTag(null, TAG_TEST_ONLY_ADMIN);
 795             }
 796             if (disableCamera) {
 797                 out.startTag(null, TAG_DISABLE_CAMERA);
 798                 out.attribute(null, ATTR_VALUE, Boolean.toString(disableCamera));
 799                 out.endTag(null, TAG_DISABLE_CAMERA);
 800             }
 801             if (disableCallerId) {
 802                 out.startTag(null, TAG_DISABLE_CALLER_ID);
 803                 out.attribute(null, ATTR_VALUE, Boolean.toString(disableCallerId));
 804                 out.endTag(null, TAG_DISABLE_CALLER_ID);
 805             }
 806             if (disableContactsSearch) {
 807                 out.startTag(null, TAG_DISABLE_CONTACTS_SEARCH);
 808                 out.attribute(null, ATTR_VALUE, Boolean.toString(disableContactsSearch));
 809                 out.endTag(null, TAG_DISABLE_CONTACTS_SEARCH);
 810             }
 811             if (!disableBluetoothContactSharing) {
 812                 out.startTag(null, TAG_DISABLE_BLUETOOTH_CONTACT_SHARING);
 813                 out.attribute(null, ATTR_VALUE,
 814                         Boolean.toString(disableBluetoothContactSharing));
 815                 out.endTag(null, TAG_DISABLE_BLUETOOTH_CONTACT_SHARING);
 816             }
 817             if (disableScreenCapture) {
 818                 out.startTag(null, TAG_DISABLE_SCREEN_CAPTURE);
 819                 out.attribute(null, ATTR_VALUE, Boolean.toString(disableScreenCapture));
 820                 out.endTag(null, TAG_DISABLE_SCREEN_CAPTURE);
 821             }
 822             if (requireAutoTime) {
 823                 out.startTag(null, TAG_REQUIRE_AUTO_TIME);
 824                 out.attribute(null, ATTR_VALUE, Boolean.toString(requireAutoTime));
 825                 out.endTag(null, TAG_REQUIRE_AUTO_TIME);
 826             }
 827             if (forceEphemeralUsers) {
 828                 out.startTag(null, TAG_FORCE_EPHEMERAL_USERS);
 829                 out.attribute(null, ATTR_VALUE, Boolean.toString(forceEphemeralUsers));
 830                 out.endTag(null, TAG_FORCE_EPHEMERAL_USERS);
 831             }
 832             if (disabledKeyguardFeatures != DEF_KEYGUARD_FEATURES_DISABLED) {
 833                 out.startTag(null, TAG_DISABLE_KEYGUARD_FEATURES);
 834                 out.attribute(null, ATTR_VALUE, Integer.toString(disabledKeyguardFeatures));
 835                 out.endTag(null, TAG_DISABLE_KEYGUARD_FEATURES);
 836             }
 837             if (!accountTypesWithManagementDisabled.isEmpty()) {
 838                 out.startTag(null, TAG_DISABLE_ACCOUNT_MANAGEMENT);
 839                 for (String ac : accountTypesWithManagementDisabled) {
 840                     out.startTag(null, TAG_ACCOUNT_TYPE);
 841                     out.attribute(null, ATTR_VALUE, ac);
 842                     out.endTag(null, TAG_ACCOUNT_TYPE);
 843                 }
 844                 out.endTag(null,  TAG_DISABLE_ACCOUNT_MANAGEMENT);
 845             }
 846             if (!trustAgentInfos.isEmpty()) {
 847                 Set<Entry<String, TrustAgentInfo>> set = trustAgentInfos.entrySet();
 848                 out.startTag(null, TAG_MANAGE_TRUST_AGENT_FEATURES);
 849                 for (Entry<String, TrustAgentInfo> entry : set) {
 850                     TrustAgentInfo trustAgentInfo = entry.getValue();
 851                     out.startTag(null, TAG_TRUST_AGENT_COMPONENT);
 852                     out.attribute(null, ATTR_VALUE, entry.getKey());
 853                     if (trustAgentInfo.options != null) {
 854                         out.startTag(null, TAG_TRUST_AGENT_COMPONENT_OPTIONS);
 855                         try {
 856                             trustAgentInfo.options.saveToXml(out);
 857                         } catch (XmlPullParserException e) {
 858                             Log.e(LOG_TAG, "Failed to save TrustAgent options", e);
 859                         }
 860                         out.endTag(null, TAG_TRUST_AGENT_COMPONENT_OPTIONS);
 861                     }
 862                     out.endTag(null, TAG_TRUST_AGENT_COMPONENT);
 863                 }
 864                 out.endTag(null, TAG_MANAGE_TRUST_AGENT_FEATURES);
 865             }
 866             if (crossProfileWidgetProviders != null && !crossProfileWidgetProviders.isEmpty()) {
 867                 out.startTag(null, TAG_CROSS_PROFILE_WIDGET_PROVIDERS);
 868                 final int providerCount = crossProfileWidgetProviders.size();
 869                 for (int i = 0; i < providerCount; i++) {
 870                     String provider = crossProfileWidgetProviders.get(i);
 871                     out.startTag(null, TAG_PROVIDER);
 872                     out.attribute(null, ATTR_VALUE, provider);
 873                     out.endTag(null, TAG_PROVIDER);
 874                 }
 875                 out.endTag(null, TAG_CROSS_PROFILE_WIDGET_PROVIDERS);
 876             }
 877             writePackageListToXml(out, TAG_PERMITTED_ACCESSIBILITY_SERVICES,
 878                     permittedAccessiblityServices);
 879             writePackageListToXml(out, TAG_PERMITTED_IMES, permittedInputMethods);
 880             writePackageListToXml(out, TAG_KEEP_UNINSTALLED_PACKAGES, keepUninstalledPackages);
 881             if (hasUserRestrictions()) {
 882                 UserRestrictionsUtils.writeRestrictions(
 883                         out, userRestrictions, TAG_USER_RESTRICTIONS);
 884             }
 885             if (!TextUtils.isEmpty(shortSupportMessage)) {
 886                 out.startTag(null, TAG_SHORT_SUPPORT_MESSAGE);
 887                 out.text(shortSupportMessage.toString());
 888                 out.endTag(null, TAG_SHORT_SUPPORT_MESSAGE);
 889             }
 890             if (!TextUtils.isEmpty(longSupportMessage)) {
 891                 out.startTag(null, TAG_LONG_SUPPORT_MESSAGE);
 892                 out.text(longSupportMessage.toString());
 893                 out.endTag(null, TAG_LONG_SUPPORT_MESSAGE);
 894             }
 895             if (parentAdmin != null) {
 896                 out.startTag(null, TAG_PARENT_ADMIN);
 897                 parentAdmin.writeToXml(out);
 898                 out.endTag(null, TAG_PARENT_ADMIN);
 899             }
 900             if (organizationColor != DEF_ORGANIZATION_COLOR) {
 901                 out.startTag(null, TAG_ORGANIZATION_COLOR);
 902                 out.attribute(null, ATTR_VALUE, Integer.toString(organizationColor));
 903                 out.endTag(null, TAG_ORGANIZATION_COLOR);
 904             }
 905             if (organizationName != null) {
 906                 out.startTag(null, TAG_ORGANIZATION_NAME);
 907                 out.text(organizationName);
 908                 out.endTag(null, TAG_ORGANIZATION_NAME);
 909             }
 910         }
 911
 912         void writePackageListToXml(XmlSerializer out, String outerTag,
 913                 List<String> packageList)
 914                 throws IllegalArgumentException, IllegalStateException, IOException {
 915             if (packageList == null) {
 916                 return;
 917             }
 918
 919             out.startTag(null, outerTag);
 920             for (String packageName : packageList) {
 921                 out.startTag(null, TAG_PACKAGE_LIST_ITEM);
 922                 out.attribute(null, ATTR_VALUE, packageName);
 923                 out.endTag(null, TAG_PACKAGE_LIST_ITEM);
 924             }
 925             out.endTag(null, outerTag);
 926         }
 927
 928         void readFromXml(XmlPullParser parser)
 929                 throws XmlPullParserException, IOException {
 930             int outerDepth = parser.getDepth();
 931             int type;
 932             while ((type=parser.next()) != END_DOCUMENT
 933                    && (type != END_TAG || parser.getDepth() > outerDepth)) {
 934                 if (type == END_TAG || type == TEXT) {
 935                     continue;
 936                 }
 937                 String tag = parser.getName();
 938                 if (TAG_POLICIES.equals(tag)) {
 939                     info.readPoliciesFromXml(parser);
 940                 } else if (TAG_PASSWORD_QUALITY.equals(tag)) {
 941                     passwordQuality = Integer.parseInt(
 942                             parser.getAttributeValue(null, ATTR_VALUE));
 943                 } else if (TAG_MIN_PASSWORD_LENGTH.equals(tag)) {
 944                     minimumPasswordLength = Integer.parseInt(
 945                             parser.getAttributeValue(null, ATTR_VALUE));
 946                 } else if (TAG_PASSWORD_HISTORY_LENGTH.equals(tag)) {
 947                     passwordHistoryLength = Integer.parseInt(
 948                             parser.getAttributeValue(null, ATTR_VALUE));
 949                 } else if (TAG_MIN_PASSWORD_UPPERCASE.equals(tag)) {
 950                     minimumPasswordUpperCase = Integer.parseInt(
 951                             parser.getAttributeValue(null, ATTR_VALUE));
 952                 } else if (TAG_MIN_PASSWORD_LOWERCASE.equals(tag)) {
 953                     minimumPasswordLowerCase = Integer.parseInt(
 954                             parser.getAttributeValue(null, ATTR_VALUE));
 955                 } else if (TAG_MIN_PASSWORD_LETTERS.equals(tag)) {
 956                     minimumPasswordLetters = Integer.parseInt(
 957                             parser.getAttributeValue(null, ATTR_VALUE));
 958                 } else if (TAG_MIN_PASSWORD_NUMERIC.equals(tag)) {
 959                     minimumPasswordNumeric = Integer.parseInt(
 960                             parser.getAttributeValue(null, ATTR_VALUE));
 961                 } else if (TAG_MIN_PASSWORD_SYMBOLS.equals(tag)) {
 962                     minimumPasswordSymbols = Integer.parseInt(
 963                             parser.getAttributeValue(null, ATTR_VALUE));
 964                 } else if (TAG_MIN_PASSWORD_NONLETTER.equals(tag)) {
 965                     minimumPasswordNonLetter = Integer.parseInt(
 966                             parser.getAttributeValue(null, ATTR_VALUE));
 967                 } else if (TAG_MAX_TIME_TO_UNLOCK.equals(tag)) {
 968                     maximumTimeToUnlock = Long.parseLong(
 969                             parser.getAttributeValue(null, ATTR_VALUE));
 970                 } else if (TAG_MAX_FAILED_PASSWORD_WIPE.equals(tag)) {
 971                     maximumFailedPasswordsForWipe = Integer.parseInt(
 972                             parser.getAttributeValue(null, ATTR_VALUE));
 973                 } else if (TAG_SPECIFIES_GLOBAL_PROXY.equals(tag)) {
 974                     specifiesGlobalProxy = Boolean.parseBoolean(
 975                             parser.getAttributeValue(null, ATTR_VALUE));
 976                 } else if (TAG_GLOBAL_PROXY_SPEC.equals(tag)) {
 977                     globalProxySpec =
 978                         parser.getAttributeValue(null, ATTR_VALUE);
 979                 } else if (TAG_GLOBAL_PROXY_EXCLUSION_LIST.equals(tag)) {
 980                     globalProxyExclusionList =
 981                         parser.getAttributeValue(null, ATTR_VALUE);
 982                 } else if (TAG_PASSWORD_EXPIRATION_TIMEOUT.equals(tag)) {
 983                     passwordExpirationTimeout = Long.parseLong(
 984                             parser.getAttributeValue(null, ATTR_VALUE));
 985                 } else if (TAG_PASSWORD_EXPIRATION_DATE.equals(tag)) {
 986                     passwordExpirationDate = Long.parseLong(
 987                             parser.getAttributeValue(null, ATTR_VALUE));
 988                 } else if (TAG_ENCRYPTION_REQUESTED.equals(tag)) {
 989                     encryptionRequested = Boolean.parseBoolean(
 990                             parser.getAttributeValue(null, ATTR_VALUE));
 991                 } else if (TAG_TEST_ONLY_ADMIN.equals(tag)) {
 992                     testOnlyAdmin = Boolean.parseBoolean(
 993                             parser.getAttributeValue(null, ATTR_VALUE));
 994                 } else if (TAG_DISABLE_CAMERA.equals(tag)) {
 995                     disableCamera = Boolean.parseBoolean(
 996                             parser.getAttributeValue(null, ATTR_VALUE));
 997                 } else if (TAG_DISABLE_CALLER_ID.equals(tag)) {
 998                     disableCallerId = Boolean.parseBoolean(
 999                             parser.getAttributeValue(null, ATTR_VALUE));
1000                 } else if (TAG_DISABLE_CONTACTS_SEARCH.equals(tag)) {
1001                     disableContactsSearch = Boolean.parseBoolean(
1002                             parser.getAttributeValue(null, ATTR_VALUE));
1003                 } else if (TAG_DISABLE_BLUETOOTH_CONTACT_SHARING.equals(tag)) {
1004                     disableBluetoothContactSharing = Boolean.parseBoolean(parser
1005                             .getAttributeValue(null, ATTR_VALUE));
1006                 } else if (TAG_DISABLE_SCREEN_CAPTURE.equals(tag)) {
1007                     disableScreenCapture = Boolean.parseBoolean(
1008                             parser.getAttributeValue(null, ATTR_VALUE));
1009                 } else if (TAG_REQUIRE_AUTO_TIME.equals(tag)) {
1010                     requireAutoTime = Boolean.parseBoolean(
1011                             parser.getAttributeValue(null, ATTR_VALUE));
1012                 } else if (TAG_FORCE_EPHEMERAL_USERS.equals(tag)) {
1013                     forceEphemeralUsers = Boolean.parseBoolean(
1014                             parser.getAttributeValue(null, ATTR_VALUE));
1015                 } else if (TAG_DISABLE_KEYGUARD_FEATURES.equals(tag)) {
1016                     disabledKeyguardFeatures = Integer.parseInt(
1017                             parser.getAttributeValue(null, ATTR_VALUE));
1018                 } else if (TAG_DISABLE_ACCOUNT_MANAGEMENT.equals(tag)) {
1019                     accountTypesWithManagementDisabled = readDisableAccountInfo(parser, tag);
1020                 } else if (TAG_MANAGE_TRUST_AGENT_FEATURES.equals(tag)) {
1021                     trustAgentInfos = getAllTrustAgentInfos(parser, tag);
1022                 } else if (TAG_CROSS_PROFILE_WIDGET_PROVIDERS.equals(tag)) {
1023                     crossProfileWidgetProviders = getCrossProfileWidgetProviders(parser, tag);
1024                 } else if (TAG_PERMITTED_ACCESSIBILITY_SERVICES.equals(tag)) {
1025                     permittedAccessiblityServices = readPackageList(parser, tag);
1026                 } else if (TAG_PERMITTED_IMES.equals(tag)) {
1027                     permittedInputMethods = readPackageList(parser, tag);
1028                 } else if (TAG_KEEP_UNINSTALLED_PACKAGES.equals(tag)) {
1029                     keepUninstalledPackages = readPackageList(parser, tag);
1030                 } else if (TAG_USER_RESTRICTIONS.equals(tag)) {
1031                     UserRestrictionsUtils.readRestrictions(parser, ensureUserRestrictions());
1032                 } else if (TAG_SHORT_SUPPORT_MESSAGE.equals(tag)) {
1033                     type = parser.next();
1034                     if (type == XmlPullParser.TEXT) {
1035                         shortSupportMessage = parser.getText();
1036                     } else {
1037                         Log.w(LOG_TAG, "Missing text when loading short support message");
1038                     }
1039                 } else if (TAG_LONG_SUPPORT_MESSAGE.equals(tag)) {
1040                     type = parser.next();
1041                     if (type == XmlPullParser.TEXT) {
1042                         longSupportMessage = parser.getText();
1043                     } else {
1044                         Log.w(LOG_TAG, "Missing text when loading long support message");
1045                     }
1046                 } else if (TAG_PARENT_ADMIN.equals(tag)) {
1047                     Preconditions.checkState(!isParent);
1048
1049                     parentAdmin = new ActiveAdmin(info, /* parent */ true);
1050                     parentAdmin.readFromXml(parser);
1051                 } else if (TAG_ORGANIZATION_COLOR.equals(tag)) {
1052                     organizationColor = Integer.parseInt(
1053                             parser.getAttributeValue(null, ATTR_VALUE));
1054                 } else if (TAG_ORGANIZATION_NAME.equals(tag)) {
1055                     type = parser.next();
1056                     if (type == XmlPullParser.TEXT) {
1057                         organizationName = parser.getText();
1058                     } else {
1059                         Log.w(LOG_TAG, "Missing text when loading organization name");
1060                     }
1061                 } else {
1062                     Slog.w(LOG_TAG, "Unknown admin tag: " + tag);
1063                     XmlUtils.skipCurrentTag(parser);
1064                 }
1065             }
1066         }
1067
1068         private List<String> readPackageList(XmlPullParser parser,
1069                 String tag) throws XmlPullParserException, IOException {
1070             List<String> result = new ArrayList<String>();
1071             int outerDepth = parser.getDepth();
1072             int outerType;
1073             while ((outerType=parser.next()) != XmlPullParser.END_DOCUMENT
1074                     && (outerType != XmlPullParser.END_TAG || parser.getDepth() > outerDepth)) {
1075                 if (outerType == XmlPullParser.END_TAG || outerType == XmlPullParser.TEXT) {
1076                     continue;
1077                 }
1078                 String outerTag = parser.getName();
1079                 if (TAG_PACKAGE_LIST_ITEM.equals(outerTag)) {
1080                     String packageName = parser.getAttributeValue(null, ATTR_VALUE);
1081                     if (packageName != null) {
1082                         result.add(packageName);
1083                     } else {
1084                         Slog.w(LOG_TAG, "Package name missing under " + outerTag);
1085                     }
1086                 } else {
1087                     Slog.w(LOG_TAG, "Unknown tag under " + tag +  ": " + outerTag);
1088                 }
1089             }
1090             return result;
1091         }
1092
1093         private Set<String> readDisableAccountInfo(XmlPullParser parser, String tag)
1094                 throws XmlPullParserException, IOException {
1095             int outerDepthDAM = parser.getDepth();
1096             int typeDAM;
1097             Set<String> result = new ArraySet<>();
1098             while ((typeDAM=parser.next()) != END_DOCUMENT
1099                     && (typeDAM != END_TAG || parser.getDepth() > outerDepthDAM)) {
1100                 if (typeDAM == END_TAG || typeDAM == TEXT) {
1101                     continue;
1102                 }
1103                 String tagDAM = parser.getName();
1104                 if (TAG_ACCOUNT_TYPE.equals(tagDAM)) {
1105                     result.add(parser.getAttributeValue(null, ATTR_VALUE));
1106                 } else {
1107                     Slog.w(LOG_TAG, "Unknown tag under " + tag +  ": " + tagDAM);
1108                 }
1109             }
1110             return result;
1111         }
1112
1113         private ArrayMap<String, TrustAgentInfo> getAllTrustAgentInfos(
1114                 XmlPullParser parser, String tag) throws XmlPullParserException, IOException {
1115             int outerDepthDAM = parser.getDepth();
1116             int typeDAM;
1117             final ArrayMap<String, TrustAgentInfo> result = new ArrayMap<>();
1118             while ((typeDAM=parser.next()) != END_DOCUMENT
1119                     && (typeDAM != END_TAG || parser.getDepth() > outerDepthDAM)) {
1120                 if (typeDAM == END_TAG || typeDAM == TEXT) {
1121                     continue;
1122                 }
1123                 String tagDAM = parser.getName();
1124                 if (TAG_TRUST_AGENT_COMPONENT.equals(tagDAM)) {
1125                     final String component = parser.getAttributeValue(null, ATTR_VALUE);
1126                     final TrustAgentInfo trustAgentInfo = getTrustAgentInfo(parser, tag);
1127                     result.put(component, trustAgentInfo);
1128                 } else {
1129                     Slog.w(LOG_TAG, "Unknown tag under " + tag +  ": " + tagDAM);
1130                 }
1131             }
1132             return result;
1133         }
1134
1135         private TrustAgentInfo getTrustAgentInfo(XmlPullParser parser, String tag)
1136                 throws XmlPullParserException, IOException  {
1137             int outerDepthDAM = parser.getDepth();
1138             int typeDAM;
1139             TrustAgentInfo result = new TrustAgentInfo(null);
1140             while ((typeDAM=parser.next()) != END_DOCUMENT
1141                     && (typeDAM != END_TAG || parser.getDepth() > outerDepthDAM)) {
1142                 if (typeDAM == END_TAG || typeDAM == TEXT) {
1143                     continue;
1144                 }
1145                 String tagDAM = parser.getName();
1146                 if (TAG_TRUST_AGENT_COMPONENT_OPTIONS.equals(tagDAM)) {
1147                     result.options = PersistableBundle.restoreFromXml(parser);
1148                 } else {
1149                     Slog.w(LOG_TAG, "Unknown tag under " + tag +  ": " + tagDAM);
1150                 }
1151             }
1152             return result;
1153         }
1154
1155         private List<String> getCrossProfileWidgetProviders(XmlPullParser parser, String tag)
1156                 throws XmlPullParserException, IOException  {
1157             int outerDepthDAM = parser.getDepth();
1158             int typeDAM;
1159             ArrayList<String> result = null;
1160             while ((typeDAM=parser.next()) != END_DOCUMENT
1161                     && (typeDAM != END_TAG || parser.getDepth() > outerDepthDAM)) {
1162                 if (typeDAM == END_TAG || typeDAM == TEXT) {
1163                     continue;
1164                 }
1165                 String tagDAM = parser.getName();
1166                 if (TAG_PROVIDER.equals(tagDAM)) {
1167                     final String provider = parser.getAttributeValue(null, ATTR_VALUE);
1168                     if (result == null) {
1169                         result = new ArrayList<>();
1170                     }
1171                     result.add(provider);
1172                 } else {
1173                     Slog.w(LOG_TAG, "Unknown tag under " + tag +  ": " + tagDAM);
1174                 }
1175             }
1176             return result;
1177         }
1178
1179         boolean hasUserRestrictions() {
1180             return userRestrictions != null && userRestrictions.size() > 0;
1181         }
1182
1183         Bundle ensureUserRestrictions() {
1184             if (userRestrictions == null) {
1185                 userRestrictions = new Bundle();
1186             }
1187             return userRestrictions;
1188         }
1189
1190         void dump(String prefix, PrintWriter pw) {
1191             pw.print(prefix); pw.print("uid="); pw.println(getUid());
1192             pw.print(prefix); pw.print("testOnlyAdmin=");
1193             pw.println(testOnlyAdmin);
1194             pw.print(prefix); pw.println("policies:");
1195             ArrayList<DeviceAdminInfo.PolicyInfo> pols = info.getUsedPolicies();
1196             if (pols != null) {
1197                 for (int i=0; i<pols.size(); i++) {
1198                     pw.print(prefix); pw.print("  "); pw.println(pols.get(i).tag);
1199                 }
1200             }
1201             pw.print(prefix); pw.print("passwordQuality=0x");
1202                     pw.println(Integer.toHexString(passwordQuality));
1203             pw.print(prefix); pw.print("minimumPasswordLength=");
1204                     pw.println(minimumPasswordLength);
1205             pw.print(prefix); pw.print("passwordHistoryLength=");
1206                     pw.println(passwordHistoryLength);
1207             pw.print(prefix); pw.print("minimumPasswordUpperCase=");
1208                     pw.println(minimumPasswordUpperCase);
1209             pw.print(prefix); pw.print("minimumPasswordLowerCase=");
1210                     pw.println(minimumPasswordLowerCase);
1211             pw.print(prefix); pw.print("minimumPasswordLetters=");
1212                     pw.println(minimumPasswordLetters);
1213             pw.print(prefix); pw.print("minimumPasswordNumeric=");
1214                     pw.println(minimumPasswordNumeric);
1215             pw.print(prefix); pw.print("minimumPasswordSymbols=");
1216                     pw.println(minimumPasswordSymbols);
1217             pw.print(prefix); pw.print("minimumPasswordNonLetter=");
1218                     pw.println(minimumPasswordNonLetter);
1219             pw.print(prefix); pw.print("maximumTimeToUnlock=");
1220                     pw.println(maximumTimeToUnlock);
1221             pw.print(prefix); pw.print("maximumFailedPasswordsForWipe=");
1222                     pw.println(maximumFailedPasswordsForWipe);
1223             pw.print(prefix); pw.print("specifiesGlobalProxy=");
1224                     pw.println(specifiesGlobalProxy);
1225             pw.print(prefix); pw.print("passwordExpirationTimeout=");
1226                     pw.println(passwordExpirationTimeout);
1227             pw.print(prefix); pw.print("passwordExpirationDate=");
1228                     pw.println(passwordExpirationDate);
1229             if (globalProxySpec != null) {
1230                 pw.print(prefix); pw.print("globalProxySpec=");
1231                         pw.println(globalProxySpec);
1232             }
1233             if (globalProxyExclusionList != null) {
1234                 pw.print(prefix); pw.print("globalProxyEclusionList=");
1235                         pw.println(globalProxyExclusionList);
1236             }
1237             pw.print(prefix); pw.print("encryptionRequested=");
1238                     pw.println(encryptionRequested);
1239             pw.print(prefix); pw.print("disableCamera=");
1240                     pw.println(disableCamera);
1241             pw.print(prefix); pw.print("disableCallerId=");
1242                     pw.println(disableCallerId);
1243             pw.print(prefix); pw.print("disableContactsSearch=");
1244                     pw.println(disableContactsSearch);
1245             pw.print(prefix); pw.print("disableBluetoothContactSharing=");
1246                     pw.println(disableBluetoothContactSharing);
1247             pw.print(prefix); pw.print("disableScreenCapture=");
1248                     pw.println(disableScreenCapture);
1249             pw.print(prefix); pw.print("requireAutoTime=");
1250                     pw.println(requireAutoTime);
1251             pw.print(prefix); pw.print("forceEphemeralUsers=");
1252                     pw.println(forceEphemeralUsers);
1253             pw.print(prefix); pw.print("disabledKeyguardFeatures=");
1254                     pw.println(disabledKeyguardFeatures);
1255             pw.print(prefix); pw.print("crossProfileWidgetProviders=");
1256                     pw.println(crossProfileWidgetProviders);
1257             if (permittedAccessiblityServices != null) {
1258                 pw.print(prefix); pw.print("permittedAccessibilityServices=");
1259                     pw.println(permittedAccessiblityServices);
1260             }
1261             if (permittedInputMethods != null) {
1262                 pw.print(prefix); pw.print("permittedInputMethods=");
1263                     pw.println(permittedInputMethods);
1264             }
1265             if (keepUninstalledPackages != null) {
1266                 pw.print(prefix); pw.print("keepUninstalledPackages=");
1267                     pw.println(keepUninstalledPackages);
1268             }
1269             pw.print(prefix); pw.print("organizationColor=");
1270                     pw.println(organizationColor);
1271             if (organizationName != null) {
1272                 pw.print(prefix); pw.print("organizationName=");
1273                     pw.println(organizationName);
1274             }
1275             pw.print(prefix); pw.println("userRestrictions:");
1276             UserRestrictionsUtils.dumpRestrictions(pw, prefix + "  ", userRestrictions);
1277             pw.print(prefix); pw.print("isParent=");
1278                     pw.println(isParent);
1279             if (parentAdmin != null) {
1280                 pw.print(prefix);  pw.println("parentAdmin:");
1281                 parentAdmin.dump(prefix + "  ", pw);
1282             }
1283         }
1284     }
1285
1286     private void handlePackagesChanged(String packageName, int userHandle) {
1287         boolean removed = false;
1288         if (VERBOSE_LOG) Slog.d(LOG_TAG, "Handling package changes for user " + userHandle);
1289         DevicePolicyData policy = getUserData(userHandle);
1290         synchronized (this) {
1291             for (int i = policy.mAdminList.size() - 1; i >= 0; i--) {
1292                 ActiveAdmin aa = policy.mAdminList.get(i);
1293                 try {
1294                     // If we're checking all packages or if the specific one we're checking matches,
1295                     // then check if the package and receiver still exist.
1296                     final String adminPackage = aa.info.getPackageName();
1297                     if (packageName == null || packageName.equals(adminPackage)) {
1298                         if (mIPackageManager.getPackageInfo(adminPackage, 0, userHandle) == null
1299                                 || mIPackageManager.getReceiverInfo(aa.info.getComponent(),
1300                                         PackageManager.MATCH_DIRECT_BOOT_AWARE
1301                                                 | PackageManager.MATCH_DIRECT_BOOT_UNAWARE,
1302                                         userHandle) == null) {
1303                             removed = true;
1304                             policy.mAdminList.remove(i);
1305                             policy.mAdminMap.remove(aa.info.getComponent());
1306                         }
1307                     }
1308                 } catch (RemoteException re) {
1309                     // Shouldn't happen
1310                 }
1311             }
1312             if (removed) {
1313                 validatePasswordOwnerLocked(policy);
1314                 saveSettingsLocked(policy.mUserHandle);
1315             }
1316
1317             // Check if delegated cert installer or app restrictions managing packages are removed.
1318             if (isRemovedPackage(packageName, policy.mDelegatedCertInstallerPackage, userHandle)) {
1319                 policy.mDelegatedCertInstallerPackage = null;
1320                 saveSettingsLocked(policy.mUserHandle);
1321             }
1322             if (isRemovedPackage(
1323                     packageName, policy.mApplicationRestrictionsManagingPackage, userHandle)) {
1324                 policy.mApplicationRestrictionsManagingPackage = null;
1325                 saveSettingsLocked(policy.mUserHandle);
1326             }
1327         }
1328         if (removed) {
1329             // The removed admin might have disabled camera, so update user restrictions.
1330             pushUserRestrictions(userHandle);
1331         }
1332     }
1333
1334     private boolean isRemovedPackage(String changedPackage, String targetPackage, int userHandle) {
1335         try {
1336             return targetPackage != null
1337                     && (changedPackage == null || changedPackage.equals(targetPackage))
1338                     && mIPackageManager.getPackageInfo(targetPackage, 0, userHandle) == null;
1339         } catch (RemoteException e) {
1340             // Shouldn't happen
1341         }
1342
1343         return false;
1344     }
1345
1346     /**
1347      * Unit test will subclass it to inject mocks.
1348      */
1349     @VisibleForTesting
1350     static class Injector {
1351
1352         private final Context mContext;
1353
1354         Injector(Context context) {
1355             mContext = context;
1356         }
1357
1358         Owners newOwners() {
1359             return new Owners(getUserManager(), getUserManagerInternal(),
1360                     getPackageManagerInternal());
1361         }
1362
1363         UserManager getUserManager() {
1364             return UserManager.get(mContext);
1365         }
1366
1367         UserManagerInternal getUserManagerInternal() {
1368             return LocalServices.getService(UserManagerInternal.class);
1369         }
1370
1371         PackageManagerInternal getPackageManagerInternal() {
1372             return LocalServices.getService(PackageManagerInternal.class);
1373         }
1374
1375         NotificationManager getNotificationManager() {
1376             return mContext.getSystemService(NotificationManager.class);
1377         }
1378
1379         PowerManagerInternal getPowerManagerInternal() {
1380             return LocalServices.getService(PowerManagerInternal.class);
1381         }
1382
1383         TelephonyManager getTelephonyManager() {
1384             return TelephonyManager.from(mContext);
1385         }
1386
1387         TrustManager getTrustManager() {
1388             return (TrustManager) mContext.getSystemService(Context.TRUST_SERVICE);
1389         }
1390
1391         IWindowManager getIWindowManager() {
1392             return IWindowManager.Stub
1393                     .asInterface(ServiceManager.getService(Context.WINDOW_SERVICE));
1394         }
1395
1396         IActivityManager getIActivityManager() {
1397             return ActivityManagerNative.getDefault();
1398         }
1399
1400         IPackageManager getIPackageManager() {
1401             return AppGlobals.getPackageManager();
1402         }
1403
1404         IBackupManager getIBackupManager() {
1405             return IBackupManager.Stub.asInterface(
1406                     ServiceManager.getService(Context.BACKUP_SERVICE));
1407         }
1408
1409         IAudioService getIAudioService() {
1410             return IAudioService.Stub.asInterface(ServiceManager.getService(Context.AUDIO_SERVICE));
1411         }
1412
1413         LockPatternUtils newLockPatternUtils() {
1414             return new LockPatternUtils(mContext);
1415         }
1416
1417         boolean storageManagerIsFileBasedEncryptionEnabled() {
1418             return StorageManager.isFileEncryptedNativeOnly();
1419         }
1420
1421         boolean storageManagerIsNonDefaultBlockEncrypted() {
1422             long identity = Binder.clearCallingIdentity();
1423             try {
1424                 return StorageManager.isNonDefaultBlockEncrypted();
1425             } finally {
1426                 Binder.restoreCallingIdentity(identity);
1427             }
1428         }
1429
1430         boolean storageManagerIsEncrypted() {
1431             return StorageManager.isEncrypted();
1432         }
1433
1434         boolean storageManagerIsEncryptable() {
1435             return StorageManager.isEncryptable();
1436         }
1437
1438         Looper getMyLooper() {
1439             return Looper.myLooper();
1440         }
1441
1442         WifiManager getWifiManager() {
1443             return mContext.getSystemService(WifiManager.class);
1444         }
1445
1446         long binderClearCallingIdentity() {
1447             return Binder.clearCallingIdentity();
1448         }
1449
1450         void binderRestoreCallingIdentity(long token) {
1451             Binder.restoreCallingIdentity(token);
1452         }
1453
1454         int binderGetCallingUid() {
1455             return Binder.getCallingUid();
1456         }
1457
1458         int binderGetCallingPid() {
1459             return Binder.getCallingPid();
1460         }
1461
1462         UserHandle binderGetCallingUserHandle() {
1463             return Binder.getCallingUserHandle();
1464         }
1465
1466         boolean binderIsCallingUidMyUid() {
1467             return getCallingUid() == Process.myUid();
1468         }
1469
1470         final int userHandleGetCallingUserId() {
1471             return UserHandle.getUserId(binderGetCallingUid());
1472         }
1473
1474         File environmentGetUserSystemDirectory(int userId) {
1475             return Environment.getUserSystemDirectory(userId);
1476         }
1477
1478         void powerManagerGoToSleep(long time, int reason, int flags) {
1479             mContext.getSystemService(PowerManager.class).goToSleep(time, reason, flags);
1480         }
1481
1482         void powerManagerReboot(String reason) {
1483             mContext.getSystemService(PowerManager.class).reboot(reason);
1484         }
1485
1486         boolean systemPropertiesGetBoolean(String key, boolean def) {
1487             return SystemProperties.getBoolean(key, def);
1488         }
1489
1490         long systemPropertiesGetLong(String key, long def) {
1491             return SystemProperties.getLong(key, def);
1492         }
1493
1494         String systemPropertiesGet(String key, String def) {
1495             return SystemProperties.get(key, def);
1496         }
1497
1498         String systemPropertiesGet(String key) {
1499             return SystemProperties.get(key);
1500         }
1501
1502         void systemPropertiesSet(String key, String value) {
1503             SystemProperties.set(key, value);
1504         }
1505
1506         boolean userManagerIsSplitSystemUser() {
1507             return UserManager.isSplitSystemUser();
1508         }
1509
1510         String getDevicePolicyFilePathForSystemUser() {
1511             return "/data/system/";
1512         }
1513
1514         void registerContentObserver(Uri uri, boolean notifyForDescendents,
1515                 ContentObserver observer, int userHandle) {
1516             mContext.getContentResolver().registerContentObserver(uri, notifyForDescendents,
1517                     observer, userHandle);
1518         }
1519
1520         int settingsSecureGetIntForUser(String name, int def, int userHandle) {
1521             return Settings.Secure.getIntForUser(mContext.getContentResolver(),
1522                     name, def, userHandle);
1523         }
1524
1525         void settingsSecurePutIntForUser(String name, int value, int userHandle) {
1526             Settings.Secure.putIntForUser(mContext.getContentResolver(),
1527                     name, value, userHandle);
1528         }
1529
1530         void settingsSecurePutStringForUser(String name, String value, int userHandle) {
1531             Settings.Secure.putStringForUser(mContext.getContentResolver(),
1532                     name, value, userHandle);
1533         }
1534
1535         void settingsGlobalPutStringForUser(String name, String value, int userHandle) {
1536             Settings.Global.putStringForUser(mContext.getContentResolver(),
1537                     name, value, userHandle);
1538         }
1539
1540         void settingsSecurePutInt(String name, int value) {
1541             Settings.Secure.putInt(mContext.getContentResolver(), name, value);
1542         }
1543
1544         int settingsGlobalGetInt(String name, int def) {
1545             return Settings.Global.getInt(mContext.getContentResolver(), name, def);
1546         }
1547
1548         void settingsGlobalPutInt(String name, int value) {
1549             Settings.Global.putInt(mContext.getContentResolver(), name, value);
1550         }
1551
1552         void settingsSecurePutString(String name, String value) {
1553             Settings.Secure.putString(mContext.getContentResolver(), name, value);
1554         }
1555
1556         void settingsGlobalPutString(String name, String value) {
1557             Settings.Global.putString(mContext.getContentResolver(), name, value);
1558         }
1559
1560         void securityLogSetLoggingEnabledProperty(boolean enabled) {
1561             SecurityLog.setLoggingEnabledProperty(enabled);
1562         }
1563
1564         boolean securityLogGetLoggingEnabledProperty() {
1565             return SecurityLog.getLoggingEnabledProperty();
1566         }
1567
1568         boolean securityLogIsLoggingEnabled() {
1569             return SecurityLog.isLoggingEnabled();
1570         }
1571     }
1572
1573     /**
1574      * Instantiates the service.
1575      */
1576     public DevicePolicyManagerService(Context context) {
1577         this(new Injector(context));
1578     }
1579
1580     @VisibleForTesting
1581     DevicePolicyManagerService(Injector injector) {
1582         mInjector = injector;
1583         mContext = Preconditions.checkNotNull(injector.mContext);
1584         mHandler = new Handler(Preconditions.checkNotNull(injector.getMyLooper()));
1585         mOwners = Preconditions.checkNotNull(injector.newOwners());
1586
1587         mUserManager = Preconditions.checkNotNull(injector.getUserManager());
1588         mUserManagerInternal = Preconditions.checkNotNull(injector.getUserManagerInternal());
1589         mIPackageManager = Preconditions.checkNotNull(injector.getIPackageManager());
1590         mTelephonyManager = Preconditions.checkNotNull(injector.getTelephonyManager());
1591
1592         mLocalService = new LocalService();
1593         mLockPatternUtils = injector.newLockPatternUtils();
1594
1595         mSecurityLogMonitor = new SecurityLogMonitor(this);
1596
1597         mHasFeature = mContext.getPackageManager()
1598                 .hasSystemFeature(PackageManager.FEATURE_DEVICE_ADMIN);
1599         if (!mHasFeature) {
1600             // Skip the rest of the initialization
1601             return;
1602         }
1603         IntentFilter filter = new IntentFilter();
1604         filter.addAction(Intent.ACTION_BOOT_COMPLETED);
1605         filter.addAction(ACTION_EXPIRED_PASSWORD_NOTIFICATION);
1606         filter.addAction(Intent.ACTION_USER_ADDED);
1607         filter.addAction(Intent.ACTION_USER_REMOVED);
1608         filter.addAction(Intent.ACTION_USER_STARTED);
1609         filter.addAction(Intent.ACTION_USER_UNLOCKED);
1610         filter.addAction(KeyChain.ACTION_STORAGE_CHANGED);
1611         filter.setPriority(IntentFilter.SYSTEM_HIGH_PRIORITY);
1612         mContext.registerReceiverAsUser(mReceiver, UserHandle.ALL, filter, null, mHandler);
1613         filter = new IntentFilter();
1614         filter.addAction(Intent.ACTION_PACKAGE_CHANGED);
1615         filter.addAction(Intent.ACTION_PACKAGE_REMOVED);
1616         filter.addAction(Intent.ACTION_EXTERNAL_APPLICATIONS_UNAVAILABLE);
1617         filter.addAction(Intent.ACTION_PACKAGE_ADDED);
1618         filter.addDataScheme("package");
1619         mContext.registerReceiverAsUser(mReceiver, UserHandle.ALL, filter, null, mHandler);
1620         filter = new IntentFilter();
1621         filter.addAction(Intent.ACTION_MANAGED_PROFILE_ADDED);
1622         mContext.registerReceiverAsUser(mReceiver, UserHandle.ALL, filter, null, mHandler);
1623
1624         LocalServices.addService(DevicePolicyManagerInternal.class, mLocalService);
1625     }
1626
1627     /**
1628      * Creates and loads the policy data from xml.
1629      * @param userHandle the user for whom to load the policy data
1630      * @return
1631      */
1632     @NonNull
1633     DevicePolicyData getUserData(int userHandle) {
1634         synchronized (this) {
1635             DevicePolicyData policy = mUserData.get(userHandle);
1636             if (policy == null) {
1637                 policy = new DevicePolicyData(userHandle);
1638                 mUserData.append(userHandle, policy);
1639                 loadSettingsLocked(policy, userHandle);
1640             }
1641             return policy;
1642         }
1643     }
1644
1645     /**
1646      * Creates and loads the policy data from xml for data that is shared between
1647      * various profiles of a user. In contrast to {@link #getUserData(int)}
1648      * it allows access to data of users other than the calling user.
1649      *
1650      * This function should only be used for shared data, e.g. everything regarding
1651      * passwords and should be removed once multiple screen locks are present.
1652      * @param userHandle the user for whom to load the policy data
1653      * @return
1654      */
1655     DevicePolicyData getUserDataUnchecked(int userHandle) {
1656         long ident = mInjector.binderClearCallingIdentity();
1657         try {
1658             return getUserData(userHandle);
1659         } finally {
1660             mInjector.binderRestoreCallingIdentity(ident);
1661         }
1662     }
1663
1664     void removeUserData(int userHandle) {
1665         synchronized (this) {
1666             if (userHandle == UserHandle.USER_SYSTEM) {
1667                 Slog.w(LOG_TAG, "Tried to remove device policy file for user 0! Ignoring.");
1668                 return;
1669             }
1670             mOwners.removeProfileOwner(userHandle);
1671             mOwners.writeProfileOwner(userHandle);
1672
1673             DevicePolicyData policy = mUserData.get(userHandle);
1674             if (policy != null) {
1675                 mUserData.remove(userHandle);
1676             }
1677             File policyFile = new File(mInjector.environmentGetUserSystemDirectory(userHandle),
1678                     DEVICE_POLICIES_XML);
1679             policyFile.delete();
1680             Slog.i(LOG_TAG, "Removed device policy file " + policyFile.getAbsolutePath());
1681         }
1682         updateScreenCaptureDisabledInWindowManager(userHandle, false /* default value */);
1683     }
1684
1685     void loadOwners() {
1686         synchronized (this) {
1687             mOwners.load();
1688             setDeviceOwnerSystemPropertyLocked();
1689             findOwnerComponentIfNecessaryLocked();
1690             migrateUserRestrictionsIfNecessaryLocked();
1691
1692             // TODO PO may not have a class name either due to b/17652534.  Address that too.
1693
1694             updateDeviceOwnerLocked();
1695         }
1696     }
1697
1698     private void setDeviceOwnerSystemPropertyLocked() {
1699         // Device owner may still be provisioned, do not set the read-only system property yet.
1700         if (mInjector.settingsGlobalGetInt(Settings.Global.DEVICE_PROVISIONED, 0) == 0) {
1701             return;
1702         }
1703         // Still at the first stage of CryptKeeper double bounce, mOwners.hasDeviceOwner is
1704         // always false at this point.
1705         if (StorageManager.inCryptKeeperBounce()) {
1706             return;
1707         }
1708
1709         if (!TextUtils.isEmpty(mInjector.systemPropertiesGet(PROPERTY_DEVICE_OWNER_PRESENT))) {
1710             Slog.w(LOG_TAG, "Trying to set ro.device_owner, but it has already been set?");
1711         } else {
1712             if (mOwners.hasDeviceOwner()) {
1713                 mInjector.systemPropertiesSet(PROPERTY_DEVICE_OWNER_PRESENT, "true");
1714                 Slog.i(LOG_TAG, "Set ro.device_owner property to true");
1715                 disableSecurityLoggingIfNotCompliant();
1716                 if (mInjector.securityLogGetLoggingEnabledProperty()) {
1717                     mSecurityLogMonitor.start();
1718                 }
1719             } else {
1720                 mInjector.systemPropertiesSet(PROPERTY_DEVICE_OWNER_PRESENT, "false");
1721                 Slog.i(LOG_TAG, "Set ro.device_owner property to false");
1722             }
1723         }
1724     }
1725
1726     private void findOwnerComponentIfNecessaryLocked() {
1727         if (!mOwners.hasDeviceOwner()) {
1728             return;
1729         }
1730         final ComponentName doComponentName = mOwners.getDeviceOwnerComponent();
1731
1732         if (!TextUtils.isEmpty(doComponentName.getClassName())) {
1733             return; // Already a full component name.
1734         }
1735
1736         final ComponentName doComponent = findAdminComponentWithPackageLocked(
1737                 doComponentName.getPackageName(),
1738                 mOwners.getDeviceOwnerUserId());
1739         if (doComponent == null) {
1740             Slog.e(LOG_TAG, "Device-owner isn't registered as device-admin");
1741         } else {
1742             mOwners.setDeviceOwnerWithRestrictionsMigrated(
1743                     doComponent,
1744                     mOwners.getDeviceOwnerName(),
1745                     mOwners.getDeviceOwnerUserId(),
1746                     !mOwners.getDeviceOwnerUserRestrictionsNeedsMigration());
1747             mOwners.writeDeviceOwner();
1748             if (VERBOSE_LOG) {
1749                 Log.v(LOG_TAG, "Device owner component filled in");
1750             }
1751         }
1752     }
1753
1754     /**
1755      * We didn't use to persist user restrictions for each owners but only persisted in user
1756      * manager.
1757      */
1758     private void migrateUserRestrictionsIfNecessaryLocked() {
1759         boolean migrated = false;
1760         // Migrate for the DO.  Basically all restrictions should be considered to be set by DO,
1761         // except for the "system controlled" ones.
1762         if (mOwners.getDeviceOwnerUserRestrictionsNeedsMigration()) {
1763             if (VERBOSE_LOG) {
1764                 Log.v(LOG_TAG, "Migrating DO user restrictions");
1765             }
1766             migrated = true;
1767
1768             // Migrate user 0 restrictions to DO.
1769             final ActiveAdmin deviceOwnerAdmin = getDeviceOwnerAdminLocked();
1770
1771             migrateUserRestrictionsForUser(UserHandle.SYSTEM, deviceOwnerAdmin,
1772                     /* exceptionList =*/ null, /* isDeviceOwner =*/ true);
1773
1774             // Push DO user restrictions to user manager.
1775             pushUserRestrictions(UserHandle.USER_SYSTEM);
1776
1777             mOwners.setDeviceOwnerUserRestrictionsMigrated();
1778         }
1779
1780         // Migrate for POs.
1781
1782         // The following restrictions can be set on secondary users by the device owner, so we
1783         // assume they're not from the PO.
1784         final Set<String> secondaryUserExceptionList = Sets.newArraySet(
1785                 UserManager.DISALLOW_OUTGOING_CALLS,
1786                 UserManager.DISALLOW_SMS);
1787
1788         for (UserInfo ui : mUserManager.getUsers()) {
1789             final int userId = ui.id;
1790             if (mOwners.getProfileOwnerUserRestrictionsNeedsMigration(userId)) {
1791                 if (VERBOSE_LOG) {
1792                     Log.v(LOG_TAG, "Migrating PO user restrictions for user " + userId);
1793                 }
1794                 migrated = true;
1795
1796                 final ActiveAdmin profileOwnerAdmin = getProfileOwnerAdminLocked(userId);
1797
1798                 final Set<String> exceptionList =
1799                         (userId == UserHandle.USER_SYSTEM) ? null : secondaryUserExceptionList;
1800
1801                 migrateUserRestrictionsForUser(ui.getUserHandle(), profileOwnerAdmin,
1802                         exceptionList, /* isDeviceOwner =*/ false);
1803
1804                 // Note if a secondary user has no PO but has a DA that disables camera, we
1805                 // don't get here and won't push the camera user restriction to UserManager
1806                 // here.  That's okay because we'll push user restrictions anyway when a user
1807                 // starts.  But we still do it because we want to let user manager persist
1808                 // upon migration.
1809                 pushUserRestrictions(userId);
1810
1811                 mOwners.setProfileOwnerUserRestrictionsMigrated(userId);
1812             }
1813         }
1814         if (VERBOSE_LOG && migrated) {
1815             Log.v(LOG_TAG, "User restrictions migrated.");
1816         }
1817     }
1818
1819     private void migrateUserRestrictionsForUser(UserHandle user, ActiveAdmin admin,
1820             Set<String> exceptionList, boolean isDeviceOwner) {
1821         final Bundle origRestrictions = mUserManagerInternal.getBaseUserRestrictions(
1822                 user.getIdentifier());
1823
1824         final Bundle newBaseRestrictions = new Bundle();
1825         final Bundle newOwnerRestrictions = new Bundle();
1826
1827         for (String key : origRestrictions.keySet()) {
1828             if (!origRestrictions.getBoolean(key)) {
1829                 continue;
1830             }
1831             final boolean canOwnerChange = isDeviceOwner
1832                     ? UserRestrictionsUtils.canDeviceOwnerChange(key)
1833                     : UserRestrictionsUtils.canProfileOwnerChange(key, user.getIdentifier());
1834
1835             if (!canOwnerChange || (exceptionList!= null && exceptionList.contains(key))) {
1836                 newBaseRestrictions.putBoolean(key, true);
1837             } else {
1838                 newOwnerRestrictions.putBoolean(key, true);
1839             }
1840         }
1841
1842         if (VERBOSE_LOG) {
1843             Log.v(LOG_TAG, "origRestrictions=" + origRestrictions);
1844             Log.v(LOG_TAG, "newBaseRestrictions=" + newBaseRestrictions);
1845             Log.v(LOG_TAG, "newOwnerRestrictions=" + newOwnerRestrictions);
1846         }
1847         mUserManagerInternal.setBaseUserRestrictionsByDpmsForMigration(user.getIdentifier(),
1848                 newBaseRestrictions);
1849
1850         if (admin != null) {
1851             admin.ensureUserRestrictions().clear();
1852             admin.ensureUserRestrictions().putAll(newOwnerRestrictions);
1853         } else {
1854             Slog.w(LOG_TAG, "ActiveAdmin for DO/PO not found. user=" + user.getIdentifier());
1855         }
1856         saveSettingsLocked(user.getIdentifier());
1857     }
1858
1859     private ComponentName findAdminComponentWithPackageLocked(String packageName, int userId) {
1860         final DevicePolicyData policy = getUserData(userId);
1861         final int n = policy.mAdminList.size();
1862         ComponentName found = null;
1863         int nFound = 0;
1864         for (int i = 0; i < n; i++) {
1865             final ActiveAdmin admin = policy.mAdminList.get(i);
1866             if (packageName.equals(admin.info.getPackageName())) {
1867                 // Found!
1868                 if (nFound == 0) {
1869                     found = admin.info.getComponent();
1870                 }
1871                 nFound++;
1872             }
1873         }
1874         if (nFound > 1) {
1875             Slog.w(LOG_TAG, "Multiple DA found; assume the first one is DO.");
1876         }
1877         return found;
1878     }
1879
1880     /**
1881      * Set an alarm for an upcoming event - expiration warning, expiration, or post-expiration
1882      * reminders.  Clears alarm if no expirations are configured.
1883      */
1884     private void setExpirationAlarmCheckLocked(Context context, int userHandle, boolean parent) {
1885         final long expiration = getPasswordExpirationLocked(null, userHandle, parent);
1886         final long now = System.currentTimeMillis();
1887         final long timeToExpire = expiration - now;
1888         final long alarmTime;
1889         if (expiration == 0) {
1890             // No expirations are currently configured:  Cancel alarm.
1891             alarmTime = 0;
1892         } else if (timeToExpire <= 0) {
1893             // The password has already expired:  Repeat every 24 hours.
1894             alarmTime = now + MS_PER_DAY;
1895         } else {
1896             // Selecting the next alarm time:  Roll forward to the next 24 hour multiple before
1897             // the expiration time.
1898             long alarmInterval = timeToExpire % MS_PER_DAY;
1899             if (alarmInterval == 0) {
1900                 alarmInterval = MS_PER_DAY;
1901             }
1902             alarmTime = now + alarmInterval;
1903         }
1904
1905         long token = mInjector.binderClearCallingIdentity();
1906         try {
1907             int affectedUserHandle = parent ? getProfileParentId(userHandle) : userHandle;
1908             AlarmManager am = (AlarmManager) context.getSystemService(Context.ALARM_SERVICE);
1909             PendingIntent pi = PendingIntent.getBroadcastAsUser(context, REQUEST_EXPIRE_PASSWORD,
1910                     new Intent(ACTION_EXPIRED_PASSWORD_NOTIFICATION),
1911                     PendingIntent.FLAG_ONE_SHOT | PendingIntent.FLAG_UPDATE_CURRENT,
1912                     UserHandle.of(affectedUserHandle));
1913             am.cancel(pi);
1914             if (alarmTime != 0) {
1915                 am.set(AlarmManager.RTC, alarmTime, pi);
1916             }
1917         } finally {
1918             mInjector.binderRestoreCallingIdentity(token);
1919         }
1920     }
1921
1922     ActiveAdmin getActiveAdminUncheckedLocked(ComponentName who, int userHandle) {
1923         ActiveAdmin admin = getUserData(userHandle).mAdminMap.get(who);
1924         if (admin != null
1925                 && who.getPackageName().equals(admin.info.getActivityInfo().packageName)
1926                 && who.getClassName().equals(admin.info.getActivityInfo().name)) {
1927             return admin;
1928         }
1929         return null;
1930     }
1931
1932     ActiveAdmin getActiveAdminUncheckedLocked(ComponentName who, int userHandle, boolean parent) {
1933         if (parent) {
1934             enforceManagedProfile(userHandle, "call APIs on the parent profile");
1935         }
1936         ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle);
1937         if (admin != null && parent) {
1938             admin = admin.getParentActiveAdmin();
1939         }
1940         return admin;
1941     }
1942
1943     ActiveAdmin getActiveAdminForCallerLocked(ComponentName who, int reqPolicy)
1944             throws SecurityException {
1945         final int callingUid = mInjector.binderGetCallingUid();
1946
1947         ActiveAdmin result = getActiveAdminWithPolicyForUidLocked(who, reqPolicy, callingUid);
1948         if (result != null) {
1949             return result;
1950         }
1951
1952         if (who != null) {
1953             final int userId = UserHandle.getUserId(callingUid);
1954             final DevicePolicyData policy = getUserData(userId);
1955             ActiveAdmin admin = policy.mAdminMap.get(who);
1956             if (reqPolicy == DeviceAdminInfo.USES_POLICY_DEVICE_OWNER) {
1957                 throw new SecurityException("Admin " + admin.info.getComponent()
1958                          + " does not own the device");
1959             }
1960             if (reqPolicy == DeviceAdminInfo.USES_POLICY_PROFILE_OWNER) {
1961                 throw new SecurityException("Admin " + admin.info.getComponent()
1962                         + " does not own the profile");
1963             }
1964             throw new SecurityException("Admin " + admin.info.getComponent()
1965                     + " did not specify uses-policy for: "
1966                     + admin.info.getTagForPolicy(reqPolicy));
1967         } else {
1968             throw new SecurityException("No active admin owned by uid "
1969                     + mInjector.binderGetCallingUid() + " for policy #" + reqPolicy);
1970         }
1971     }
1972
1973     ActiveAdmin getActiveAdminForCallerLocked(ComponentName who, int reqPolicy, boolean parent)
1974             throws SecurityException {
1975         if (parent) {
1976             enforceManagedProfile(mInjector.userHandleGetCallingUserId(),
1977                     "call APIs on the parent profile");
1978         }
1979         ActiveAdmin admin = getActiveAdminForCallerLocked(who, reqPolicy);
1980         return parent ? admin.getParentActiveAdmin() : admin;
1981     }
1982     /**
1983      * Find the admin for the component and userId bit of the uid, then check
1984      * the admin's uid matches the uid.
1985      */
1986     private ActiveAdmin getActiveAdminForUidLocked(ComponentName who, int uid) {
1987         final int userId = UserHandle.getUserId(uid);
1988         final DevicePolicyData policy = getUserData(userId);
1989         ActiveAdmin admin = policy.mAdminMap.get(who);
1990         if (admin == null) {
1991             throw new SecurityException("No active admin " + who);
1992         }
1993         if (admin.getUid() != uid) {
1994             throw new SecurityException("Admin " + who + " is not owned by uid " + uid);
1995         }
1996         return admin;
1997     }
1998
1999     private ActiveAdmin getActiveAdminWithPolicyForUidLocked(ComponentName who, int reqPolicy,
2000             int uid) {
2001         // Try to find an admin which can use reqPolicy
2002         final int userId = UserHandle.getUserId(uid);
2003         final DevicePolicyData policy = getUserData(userId);
2004         if (who != null) {
2005             ActiveAdmin admin = policy.mAdminMap.get(who);
2006             if (admin == null) {
2007                 throw new SecurityException("No active admin " + who);
2008             }
2009             if (admin.getUid() != uid) {
2010                 throw new SecurityException("Admin " + who + " is not owned by uid " + uid);
2011             }
2012             if (isActiveAdminWithPolicyForUserLocked(admin, reqPolicy, userId)) {
2013                 return admin;
2014             }
2015         } else {
2016             for (ActiveAdmin admin : policy.mAdminList) {
2017                 if (admin.getUid() == uid && isActiveAdminWithPolicyForUserLocked(admin, reqPolicy,
2018                         userId)) {
2019                     return admin;
2020                 }
2021             }
2022         }
2023
2024         return null;
2025     }
2026
2027     @VisibleForTesting
2028     boolean isActiveAdminWithPolicyForUserLocked(ActiveAdmin admin, int reqPolicy,
2029             int userId) {
2030         final boolean ownsDevice = isDeviceOwner(admin.info.getComponent(), userId);
2031         final boolean ownsProfile = isProfileOwner(admin.info.getComponent(), userId);
2032
2033         if (reqPolicy == DeviceAdminInfo.USES_POLICY_DEVICE_OWNER) {
2034             return ownsDevice;
2035         } else if (reqPolicy == DeviceAdminInfo.USES_POLICY_PROFILE_OWNER) {
2036             // DO always has the PO power.
2037             return ownsDevice || ownsProfile;
2038         } else {
2039             return admin.info.usesPolicy(reqPolicy);
2040         }
2041     }
2042
2043     void sendAdminCommandLocked(ActiveAdmin admin, String action) {
2044         sendAdminCommandLocked(admin, action, null);
2045     }
2046
2047     void sendAdminCommandLocked(ActiveAdmin admin, String action, BroadcastReceiver result) {
2048         sendAdminCommandLocked(admin, action, null, result);
2049     }
2050
2051     /**
2052      * Send an update to one specific admin, get notified when that admin returns a result.
2053      */
2054     void sendAdminCommandLocked(ActiveAdmin admin, String action, Bundle adminExtras,
2055             BroadcastReceiver result) {
2056         Intent intent = new Intent(action);
2057         intent.setComponent(admin.info.getComponent());
2058         if (action.equals(DeviceAdminReceiver.ACTION_PASSWORD_EXPIRING)) {
2059             intent.putExtra("expiration", admin.passwordExpirationDate);
2060         }
2061         if (adminExtras != null) {
2062             intent.putExtras(adminExtras);
2063         }
2064         if (result != null) {
2065             mContext.sendOrderedBroadcastAsUser(intent, admin.getUserHandle(),
2066                     null, result, mHandler, Activity.RESULT_OK, null, null);
2067         } else {
2068             mContext.sendBroadcastAsUser(intent, admin.getUserHandle());
2069         }
2070     }
2071
2072     /**
2073      * Send an update to all admins of a user that enforce a specified policy.
2074      */
2075     void sendAdminCommandLocked(String action, int reqPolicy, int userHandle) {
2076         final DevicePolicyData policy = getUserData(userHandle);
2077         final int count = policy.mAdminList.size();
2078         if (count > 0) {
2079             for (int i = 0; i < count; i++) {
2080                 final ActiveAdmin admin = policy.mAdminList.get(i);
2081                 if (admin.info.usesPolicy(reqPolicy)) {
2082                     sendAdminCommandLocked(admin, action);
2083                 }
2084             }
2085         }
2086     }
2087
2088     /**
2089      * Send an update intent to all admins of a user and its profiles. Only send to admins that
2090      * enforce a specified policy.
2091      */
2092     private void sendAdminCommandToSelfAndProfilesLocked(String action, int reqPolicy,
2093             int userHandle) {
2094         int[] profileIds = mUserManager.getProfileIdsWithDisabled(userHandle);
2095         for (int profileId : profileIds) {
2096             sendAdminCommandLocked(action, reqPolicy, profileId);
2097         }
2098     }
2099
2100     /**
2101      * Sends a broadcast to each profile that share the password unlock with the given user id.
2102      */
2103     private void sendAdminCommandForLockscreenPoliciesLocked(
2104             String action, int reqPolicy, int userHandle) {
2105         if (isSeparateProfileChallengeEnabled(userHandle)) {
2106             sendAdminCommandLocked(action, reqPolicy, userHandle);
2107         } else {
2108             sendAdminCommandToSelfAndProfilesLocked(action, reqPolicy, userHandle);
2109         }
2110     }
2111
2112     void removeActiveAdminLocked(final ComponentName adminReceiver, final int userHandle) {
2113         final ActiveAdmin admin = getActiveAdminUncheckedLocked(adminReceiver, userHandle);
2114         DevicePolicyData policy = getUserData(userHandle);
2115         if (admin != null && !policy.mRemovingAdmins.contains(adminReceiver)) {
2116             policy.mRemovingAdmins.add(adminReceiver);
2117             sendAdminCommandLocked(admin,
2118                     DeviceAdminReceiver.ACTION_DEVICE_ADMIN_DISABLED,
2119                     new BroadcastReceiver() {
2120                         @Override
2121                         public void onReceive(Context context, Intent intent) {
2122                             removeAdminArtifacts(adminReceiver, userHandle);
2123                             removePackageIfRequired(adminReceiver.getPackageName(), userHandle);
2124                         }
2125                     });
2126         }
2127     }
2128
2129
2130     public DeviceAdminInfo findAdmin(ComponentName adminName, int userHandle,
2131             boolean throwForMissiongPermission) {
2132         if (!mHasFeature) {
2133             return null;
2134         }
2135         enforceFullCrossUsersPermission(userHandle);
2136         ActivityInfo ai = null;
2137         try {
2138             ai = mIPackageManager.getReceiverInfo(adminName,
2139                     PackageManager.GET_META_DATA |
2140                     PackageManager.MATCH_DISABLED_UNTIL_USED_COMPONENTS |
2141                     PackageManager.MATCH_DIRECT_BOOT_AWARE |
2142                     PackageManager.MATCH_DIRECT_BOOT_UNAWARE, userHandle);
2143         } catch (RemoteException e) {
2144             // shouldn't happen.
2145         }
2146         if (ai == null) {
2147             throw new IllegalArgumentException("Unknown admin: " + adminName);
2148         }
2149
2150         if (!permission.BIND_DEVICE_ADMIN.equals(ai.permission)) {
2151             final String message = "DeviceAdminReceiver " + adminName + " must be protected with "
2152                     + permission.BIND_DEVICE_ADMIN;
2153             Slog.w(LOG_TAG, message);
2154             if (throwForMissiongPermission &&
2155                     ai.applicationInfo.targetSdkVersion > Build.VERSION_CODES.M) {
2156                 throw new IllegalArgumentException(message);
2157             }
2158         }
2159
2160         try {
2161             return new DeviceAdminInfo(mContext, ai);
2162         } catch (XmlPullParserException | IOException e) {
2163             Slog.w(LOG_TAG, "Bad device admin requested for user=" + userHandle + ": " + adminName,
2164                     e);
2165             return null;
2166         }
2167     }
2168
2169     private JournaledFile makeJournaledFile(int userHandle) {
2170         final String base = userHandle == UserHandle.USER_SYSTEM
2171                 ? mInjector.getDevicePolicyFilePathForSystemUser() + DEVICE_POLICIES_XML
2172                 : new File(mInjector.environmentGetUserSystemDirectory(userHandle),
2173                         DEVICE_POLICIES_XML).getAbsolutePath();
2174         if (VERBOSE_LOG) {
2175             Log.v(LOG_TAG, "Opening " + base);
2176         }
2177         return new JournaledFile(new File(base), new File(base + ".tmp"));
2178     }
2179
2180     private void saveSettingsLocked(int userHandle) {
2181         DevicePolicyData policy = getUserData(userHandle);
2182         JournaledFile journal = makeJournaledFile(userHandle);
2183         FileOutputStream stream = null;
2184         try {
2185             stream = new FileOutputStream(journal.chooseForWrite(), false);
2186             XmlSerializer out = new FastXmlSerializer();
2187             out.setOutput(stream, StandardCharsets.UTF_8.name());
2188             out.startDocument(null, true);
2189
2190             out.startTag(null, "policies");
2191             if (policy.mRestrictionsProvider != null) {
2192                 out.attribute(null, ATTR_PERMISSION_PROVIDER,
2193                         policy.mRestrictionsProvider.flattenToString());
2194             }
2195             if (policy.mUserSetupComplete) {
2196                 out.attribute(null, ATTR_SETUP_COMPLETE,
2197                         Boolean.toString(true));
2198             }
2199             if (policy.mDeviceProvisioningConfigApplied) {
2200                 out.attribute(null, ATTR_DEVICE_PROVISIONING_CONFIG_APPLIED,
2201                         Boolean.toString(true));
2202             }
2203             if (policy.mUserProvisioningState != DevicePolicyManager.STATE_USER_UNMANAGED) {
2204                 out.attribute(null, ATTR_PROVISIONING_STATE,
2205                         Integer.toString(policy.mUserProvisioningState));
2206             }
2207             if (policy.mPermissionPolicy != DevicePolicyManager.PERMISSION_POLICY_PROMPT) {
2208                 out.attribute(null, ATTR_PERMISSION_POLICY,
2209                         Integer.toString(policy.mPermissionPolicy));
2210             }
2211             if (policy.mDelegatedCertInstallerPackage != null) {
2212                 out.attribute(null, ATTR_DELEGATED_CERT_INSTALLER,
2213                         policy.mDelegatedCertInstallerPackage);
2214             }
2215             if (policy.mApplicationRestrictionsManagingPackage != null) {
2216                 out.attribute(null, ATTR_APPLICATION_RESTRICTIONS_MANAGER,
2217                         policy.mApplicationRestrictionsManagingPackage);
2218             }
2219
2220             final int N = policy.mAdminList.size();
2221             for (int i=0; i<N; i++) {
2222                 ActiveAdmin ap = policy.mAdminList.get(i);
2223                 if (ap != null) {
2224                     out.startTag(null, "admin");
2225                     out.attribute(null, "name", ap.info.getComponent().flattenToString());
2226                     ap.writeToXml(out);
2227                     out.endTag(null, "admin");
2228                 }
2229             }
2230
2231             if (policy.mPasswordOwner >= 0) {
2232                 out.startTag(null, "password-owner");
2233                 out.attribute(null, "value", Integer.toString(policy.mPasswordOwner));
2234                 out.endTag(null, "password-owner");
2235             }
2236
2237             if (policy.mFailedPasswordAttempts != 0) {
2238                 out.startTag(null, "failed-password-attempts");
2239                 out.attribute(null, "value", Integer.toString(policy.mFailedPasswordAttempts));
2240                 out.endTag(null, "failed-password-attempts");
2241             }
2242
2243             if (policy.mActivePasswordQuality != 0 || policy.mActivePasswordLength != 0
2244                     || policy.mActivePasswordUpperCase != 0 || policy.mActivePasswordLowerCase != 0
2245                     || policy.mActivePasswordLetters != 0 || policy.mActivePasswordNumeric != 0
2246                     || policy.mActivePasswordSymbols != 0 || policy.mActivePasswordNonLetter != 0) {
2247                 out.startTag(null, "active-password");
2248                 out.attribute(null, "quality", Integer.toString(policy.mActivePasswordQuality));
2249                 out.attribute(null, "length", Integer.toString(policy.mActivePasswordLength));
2250                 out.attribute(null, "uppercase", Integer.toString(policy.mActivePasswordUpperCase));
2251                 out.attribute(null, "lowercase", Integer.toString(policy.mActivePasswordLowerCase));
2252                 out.attribute(null, "letters", Integer.toString(policy.mActivePasswordLetters));
2253                 out.attribute(null, "numeric", Integer
2254                         .toString(policy.mActivePasswordNumeric));
2255                 out.attribute(null, "symbols", Integer.toString(policy.mActivePasswordSymbols));
2256                 out.attribute(null, "nonletter", Integer.toString(policy.mActivePasswordNonLetter));
2257                 out.endTag(null, "active-password");
2258             }
2259
2260             for (int i = 0; i < policy.mAcceptedCaCertificates.size(); i++) {
2261                 out.startTag(null, TAG_ACCEPTED_CA_CERTIFICATES);
2262                 out.attribute(null, ATTR_NAME, policy.mAcceptedCaCertificates.valueAt(i));
2263                 out.endTag(null, TAG_ACCEPTED_CA_CERTIFICATES);
2264             }
2265
2266             for (int i=0; i<policy.mLockTaskPackages.size(); i++) {
2267                 String component = policy.mLockTaskPackages.get(i);
2268                 out.startTag(null, TAG_LOCK_TASK_COMPONENTS);
2269                 out.attribute(null, "name", component);
2270                 out.endTag(null, TAG_LOCK_TASK_COMPONENTS);
2271             }
2272
2273             if (policy.mStatusBarDisabled) {
2274                 out.startTag(null, TAG_STATUS_BAR);
2275                 out.attribute(null, ATTR_DISABLED, Boolean.toString(policy.mStatusBarDisabled));
2276                 out.endTag(null, TAG_STATUS_BAR);
2277             }
2278
2279             if (policy.doNotAskCredentialsOnBoot) {
2280                 out.startTag(null, DO_NOT_ASK_CREDENTIALS_ON_BOOT_XML);
2281                 out.endTag(null, DO_NOT_ASK_CREDENTIALS_ON_BOOT_XML);
2282             }
2283
2284             for (String id : policy.mAffiliationIds) {
2285                 out.startTag(null, TAG_AFFILIATION_ID);
2286                 out.attribute(null, "id", id);
2287                 out.endTag(null, TAG_AFFILIATION_ID);
2288             }
2289
2290             if (policy.mAdminBroadcastPending) {
2291                 out.startTag(null, TAG_ADMIN_BROADCAST_PENDING);
2292                 out.attribute(null, ATTR_VALUE,
2293                         Boolean.toString(policy.mAdminBroadcastPending));
2294                 out.endTag(null, TAG_ADMIN_BROADCAST_PENDING);
2295             }
2296
2297             if (policy.mInitBundle != null) {
2298                 out.startTag(null, TAG_INITIALIZATION_BUNDLE);
2299                 policy.mInitBundle.saveToXml(out);
2300                 out.endTag(null, TAG_INITIALIZATION_BUNDLE);
2301             }
2302
2303             out.endTag(null, "policies");
2304
2305             out.endDocument();
2306             stream.flush();
2307             FileUtils.sync(stream);
2308             stream.close();
2309             journal.commit();
2310             sendChangedNotification(userHandle);
2311         } catch (XmlPullParserException | IOException e) {
2312             Slog.w(LOG_TAG, "failed writing file", e);
2313             try {
2314                 if (stream != null) {
2315                     stream.close();
2316                 }
2317             } catch (IOException ex) {
2318                 // Ignore
2319             }
2320             journal.rollback();
2321         }
2322     }
2323
2324     private void sendChangedNotification(int userHandle) {
2325         Intent intent = new Intent(DevicePolicyManager.ACTION_DEVICE_POLICY_MANAGER_STATE_CHANGED);
2326         intent.setFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY);
2327         long ident = mInjector.binderClearCallingIdentity();
2328         try {
2329             mContext.sendBroadcastAsUser(intent, new UserHandle(userHandle));
2330         } finally {
2331             mInjector.binderRestoreCallingIdentity(ident);
2332         }
2333     }
2334
2335     private void loadSettingsLocked(DevicePolicyData policy, int userHandle) {
2336         JournaledFile journal = makeJournaledFile(userHandle);
2337         FileInputStream stream = null;
2338         File file = journal.chooseForRead();
2339         try {
2340             stream = new FileInputStream(file);
2341             XmlPullParser parser = Xml.newPullParser();
2342             parser.setInput(stream, StandardCharsets.UTF_8.name());
2343
2344             int type;
2345             while ((type=parser.next()) != XmlPullParser.END_DOCUMENT
2346                     && type != XmlPullParser.START_TAG) {
2347             }
2348             String tag = parser.getName();
2349             if (!"policies".equals(tag)) {
2350                 throw new XmlPullParserException(
2351                         "Settings do not start with policies tag: found " + tag);
2352             }
2353
2354             // Extract the permission provider component name if available
2355             String permissionProvider = parser.getAttributeValue(null, ATTR_PERMISSION_PROVIDER);
2356             if (permissionProvider != null) {
2357                 policy.mRestrictionsProvider = ComponentName.unflattenFromString(permissionProvider);
2358             }
2359             String userSetupComplete = parser.getAttributeValue(null, ATTR_SETUP_COMPLETE);
2360             if (userSetupComplete != null && Boolean.toString(true).equals(userSetupComplete)) {
2361                 policy.mUserSetupComplete = true;
2362             }
2363             String deviceProvisioningConfigApplied = parser.getAttributeValue(null,
2364                     ATTR_DEVICE_PROVISIONING_CONFIG_APPLIED);
2365             if (deviceProvisioningConfigApplied != null
2366                     && Boolean.toString(true).equals(deviceProvisioningConfigApplied)) {
2367                 policy.mDeviceProvisioningConfigApplied = true;
2368             }
2369             String provisioningState = parser.getAttributeValue(null, ATTR_PROVISIONING_STATE);
2370             if (!TextUtils.isEmpty(provisioningState)) {
2371                 policy.mUserProvisioningState = Integer.parseInt(provisioningState);
2372             }
2373             String permissionPolicy = parser.getAttributeValue(null, ATTR_PERMISSION_POLICY);
2374             if (!TextUtils.isEmpty(permissionPolicy)) {
2375                 policy.mPermissionPolicy = Integer.parseInt(permissionPolicy);
2376             }
2377             policy.mDelegatedCertInstallerPackage = parser.getAttributeValue(null,
2378                     ATTR_DELEGATED_CERT_INSTALLER);
2379             policy.mApplicationRestrictionsManagingPackage = parser.getAttributeValue(null,
2380                     ATTR_APPLICATION_RESTRICTIONS_MANAGER);
2381
2382             type = parser.next();
2383             int outerDepth = parser.getDepth();
2384             policy.mLockTaskPackages.clear();
2385             policy.mAdminList.clear();
2386             policy.mAdminMap.clear();
2387             policy.mAffiliationIds.clear();
2388             while ((type=parser.next()) != XmlPullParser.END_DOCUMENT
2389                    && (type != XmlPullParser.END_TAG || parser.getDepth() > outerDepth)) {
2390                 if (type == XmlPullParser.END_TAG || type == XmlPullParser.TEXT) {
2391                     continue;
2392                 }
2393                 tag = parser.getName();
2394                 if ("admin".equals(tag)) {
2395                     String name = parser.getAttributeValue(null, "name");
2396                     try {
2397                         DeviceAdminInfo dai = findAdmin(
2398                                 ComponentName.unflattenFromString(name), userHandle,
2399                                 /* throwForMissionPermission= */ false);
2400                         if (VERBOSE_LOG
2401                                 && (UserHandle.getUserId(dai.getActivityInfo().applicationInfo.uid)
2402                                 != userHandle)) {
2403                             Slog.w(LOG_TAG, "findAdmin returned an incorrect uid "
2404                                     + dai.getActivityInfo().applicationInfo.uid + " for user "
2405                                     + userHandle);
2406                         }
2407                         if (dai != null) {
2408                             ActiveAdmin ap = new ActiveAdmin(dai, /* parent */ false);
2409                             ap.readFromXml(parser);
2410                             policy.mAdminMap.put(ap.info.getComponent(), ap);
2411                         }
2412                     } catch (RuntimeException e) {
2413                         Slog.w(LOG_TAG, "Failed loading admin " + name, e);
2414                     }
2415                 } else if ("failed-password-attempts".equals(tag)) {
2416                     policy.mFailedPasswordAttempts = Integer.parseInt(
2417                             parser.getAttributeValue(null, "value"));
2418                 } else if ("password-owner".equals(tag)) {
2419                     policy.mPasswordOwner = Integer.parseInt(
2420                             parser.getAttributeValue(null, "value"));
2421                 } else if ("active-password".equals(tag)) {
2422                     policy.mActivePasswordQuality = Integer.parseInt(
2423                             parser.getAttributeValue(null, "quality"));
2424                     policy.mActivePasswordLength = Integer.parseInt(
2425                             parser.getAttributeValue(null, "length"));
2426                     policy.mActivePasswordUpperCase = Integer.parseInt(
2427                             parser.getAttributeValue(null, "uppercase"));
2428                     policy.mActivePasswordLowerCase = Integer.parseInt(
2429                             parser.getAttributeValue(null, "lowercase"));
2430                     policy.mActivePasswordLetters = Integer.parseInt(
2431                             parser.getAttributeValue(null, "letters"));
2432                     policy.mActivePasswordNumeric = Integer.parseInt(
2433                             parser.getAttributeValue(null, "numeric"));
2434                     policy.mActivePasswordSymbols = Integer.parseInt(
2435                             parser.getAttributeValue(null, "symbols"));
2436                     policy.mActivePasswordNonLetter = Integer.parseInt(
2437                             parser.getAttributeValue(null, "nonletter"));
2438                 } else if (TAG_ACCEPTED_CA_CERTIFICATES.equals(tag)) {
2439                     policy.mAcceptedCaCertificates.add(parser.getAttributeValue(null, ATTR_NAME));
2440                 } else if (TAG_LOCK_TASK_COMPONENTS.equals(tag)) {
2441                     policy.mLockTaskPackages.add(parser.getAttributeValue(null, "name"));
2442                 } else if (TAG_STATUS_BAR.equals(tag)) {
2443                     policy.mStatusBarDisabled = Boolean.parseBoolean(
2444                             parser.getAttributeValue(null, ATTR_DISABLED));
2445                 } else if (DO_NOT_ASK_CREDENTIALS_ON_BOOT_XML.equals(tag)) {
2446                     policy.doNotAskCredentialsOnBoot = true;
2447                 } else if (TAG_AFFILIATION_ID.equals(tag)) {
2448                     policy.mAffiliationIds.add(parser.getAttributeValue(null, "id"));
2449                 } else if (TAG_ADMIN_BROADCAST_PENDING.equals(tag)) {
2450                     String pending = parser.getAttributeValue(null, ATTR_VALUE);
2451                     policy.mAdminBroadcastPending = Boolean.toString(true).equals(pending);
2452                 } else if (TAG_INITIALIZATION_BUNDLE.equals(tag)) {
2453                     policy.mInitBundle = PersistableBundle.restoreFromXml(parser);
2454                 } else {
2455                     Slog.w(LOG_TAG, "Unknown tag: " + tag);
2456                     XmlUtils.skipCurrentTag(parser);
2457                 }
2458             }
2459         } catch (FileNotFoundException e) {
2460             // Don't be noisy, this is normal if we haven't defined any policies.
2461         } catch (NullPointerException | NumberFormatException | XmlPullParserException | IOException
2462                 | IndexOutOfBoundsException e) {
2463             Slog.w(LOG_TAG, "failed parsing " + file, e);
2464         }
2465         try {
2466             if (stream != null) {
2467                 stream.close();
2468             }
2469         } catch (IOException e) {
2470             // Ignore
2471         }
2472
2473         // Generate a list of admins from the admin map
2474         policy.mAdminList.addAll(policy.mAdminMap.values());
2475
2476         // Validate that what we stored for the password quality matches
2477         // sufficiently what is currently set.  Note that this is only
2478         // a sanity check in case the two get out of sync; this should
2479         // never normally happen.
2480         final long identity = mInjector.binderClearCallingIdentity();
2481         try {
2482             int actualPasswordQuality = mLockPatternUtils.getActivePasswordQuality(userHandle);
2483             if (actualPasswordQuality < policy.mActivePasswordQuality) {
2484                 Slog.w(LOG_TAG, "Active password quality 0x"
2485                         + Integer.toHexString(policy.mActivePasswordQuality)
2486                         + " does not match actual quality 0x"
2487                         + Integer.toHexString(actualPasswordQuality));
2488                 policy.mActivePasswordQuality = DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED;
2489                 policy.mActivePasswordLength = 0;
2490                 policy.mActivePasswordUpperCase = 0;
2491                 policy.mActivePasswordLowerCase = 0;
2492                 policy.mActivePasswordLetters = 0;
2493                 policy.mActivePasswordNumeric = 0;
2494                 policy.mActivePasswordSymbols = 0;
2495                 policy.mActivePasswordNonLetter = 0;
2496             }
2497         } finally {
2498             mInjector.binderRestoreCallingIdentity(identity);
2499         }
2500
2501         validatePasswordOwnerLocked(policy);
2502         updateMaximumTimeToLockLocked(userHandle);
2503         updateLockTaskPackagesLocked(policy.mLockTaskPackages, userHandle);
2504         if (policy.mStatusBarDisabled) {
2505             setStatusBarDisabledInternal(policy.mStatusBarDisabled, userHandle);
2506         }
2507     }
2508
2509     private void updateLockTaskPackagesLocked(List<String> packages, int userId) {
2510         long ident = mInjector.binderClearCallingIdentity();
2511         try {
2512             mInjector.getIActivityManager()
2513                     .updateLockTaskPackages(userId, packages.toArray(new String[packages.size()]));
2514         } catch (RemoteException e) {
2515             // Not gonna happen.
2516         } finally {
2517             mInjector.binderRestoreCallingIdentity(ident);
2518         }
2519     }
2520
2521     private void updateDeviceOwnerLocked() {
2522         long ident = mInjector.binderClearCallingIdentity();
2523         try {
2524             // TODO This is to prevent DO from getting "clear data"ed, but it should also check the
2525             // user id and also protect all other DAs too.
2526             final ComponentName deviceOwnerComponent = mOwners.getDeviceOwnerComponent();
2527             if (deviceOwnerComponent != null) {
2528                 mInjector.getIActivityManager()
2529                         .updateDeviceOwner(deviceOwnerComponent.getPackageName());
2530             }
2531         } catch (RemoteException e) {
2532             // Not gonna happen.
2533         } finally {
2534             mInjector.binderRestoreCallingIdentity(ident);
2535         }
2536     }
2537
2538     static void validateQualityConstant(int quality) {
2539         switch (quality) {
2540             case DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED:
2541             case DevicePolicyManager.PASSWORD_QUALITY_BIOMETRIC_WEAK:
2542             case DevicePolicyManager.PASSWORD_QUALITY_SOMETHING:
2543             case DevicePolicyManager.PASSWORD_QUALITY_NUMERIC:
2544             case DevicePolicyManager.PASSWORD_QUALITY_NUMERIC_COMPLEX:
2545             case DevicePolicyManager.PASSWORD_QUALITY_ALPHABETIC:
2546             case DevicePolicyManager.PASSWORD_QUALITY_ALPHANUMERIC:
2547             case DevicePolicyManager.PASSWORD_QUALITY_COMPLEX:
2548             case DevicePolicyManager.PASSWORD_QUALITY_MANAGED:
2549                 return;
2550         }
2551         throw new IllegalArgumentException("Invalid quality constant: 0x"
2552                 + Integer.toHexString(quality));
2553     }
2554
2555     void validatePasswordOwnerLocked(DevicePolicyData policy) {
2556         if (policy.mPasswordOwner >= 0) {
2557             boolean haveOwner = false;
2558             for (int i = policy.mAdminList.size() - 1; i >= 0; i--) {
2559                 if (policy.mAdminList.get(i).getUid() == policy.mPasswordOwner) {
2560                     haveOwner = true;
2561                     break;
2562                 }
2563             }
2564             if (!haveOwner) {
2565                 Slog.w(LOG_TAG, "Previous password owner " + policy.mPasswordOwner
2566                         + " no longer active; disabling");
2567                 policy.mPasswordOwner = -1;
2568             }
2569         }
2570     }
2571
2572     @VisibleForTesting
2573     void systemReady(int phase) {
2574         if (!mHasFeature) {
2575             return;
2576         }
2577         switch (phase) {
2578             case SystemService.PHASE_LOCK_SETTINGS_READY:
2579                 onLockSettingsReady();
2580                 break;
2581             case SystemService.PHASE_BOOT_COMPLETED:
2582                 ensureDeviceOwnerUserStarted(); // TODO Consider better place to do this.
2583                 break;
2584         }
2585     }
2586
2587     private void onLockSettingsReady() {
2588         getUserData(UserHandle.USER_SYSTEM);
2589         loadOwners();
2590         cleanUpOldUsers();
2591
2592         onStartUser(UserHandle.USER_SYSTEM);
2593
2594         // Register an observer for watching for user setup complete.
2595         new SetupContentObserver(mHandler).register();
2596         // Initialize the user setup state, to handle the upgrade case.
2597         updateUserSetupComplete();
2598
2599         List<String> packageList;
2600         synchronized (this) {
2601             packageList = getKeepUninstalledPackagesLocked();
2602         }
2603         if (packageList != null) {
2604             mInjector.getPackageManagerInternal().setKeepUninstalledPackages(packageList);
2605         }
2606
2607         synchronized (this) {
2608             // push the force-ephemeral-users policy to the user manager.
2609             ActiveAdmin deviceOwner = getDeviceOwnerAdminLocked();
2610             if (deviceOwner != null) {
2611                 mUserManagerInternal.setForceEphemeralUsers(deviceOwner.forceEphemeralUsers);
2612             }
2613         }
2614     }
2615
2616     private void ensureDeviceOwnerUserStarted() {
2617         final int userId;
2618         synchronized (this) {
2619             if (!mOwners.hasDeviceOwner()) {
2620                 return;
2621             }
2622             userId = mOwners.getDeviceOwnerUserId();
2623         }
2624         if (VERBOSE_LOG) {
2625             Log.v(LOG_TAG, "Starting non-system DO user: " + userId);
2626         }
2627         if (userId != UserHandle.USER_SYSTEM) {
2628             try {
2629                 mInjector.getIActivityManager().startUserInBackground(userId);
2630
2631                 // STOPSHIP Prevent the DO user from being killed.
2632
2633             } catch (RemoteException e) {
2634                 Slog.w(LOG_TAG, "Exception starting user", e);
2635             }
2636         }
2637     }
2638
2639     private void onStartUser(int userId) {
2640         updateScreenCaptureDisabledInWindowManager(userId,
2641                 getScreenCaptureDisabled(null, userId));
2642         pushUserRestrictions(userId);
2643     }
2644
2645     private void cleanUpOldUsers() {
2646         // This is needed in case the broadcast {@link Intent.ACTION_USER_REMOVED} was not handled
2647         // before reboot
2648         Set<Integer> usersWithProfileOwners;
2649         Set<Integer> usersWithData;
2650         synchronized(this) {
2651             usersWithProfileOwners = mOwners.getProfileOwnerKeys();
2652             usersWithData = new ArraySet<>();
2653             for (int i = 0; i < mUserData.size(); i++) {
2654                 usersWithData.add(mUserData.keyAt(i));
2655             }
2656         }
2657         List<UserInfo> allUsers = mUserManager.getUsers();
2658
2659         Set<Integer> deletedUsers = new ArraySet<>();
2660         deletedUsers.addAll(usersWithProfileOwners);
2661         deletedUsers.addAll(usersWithData);
2662         for (UserInfo userInfo : allUsers) {
2663             deletedUsers.remove(userInfo.id);
2664         }
2665         for (Integer userId : deletedUsers) {
2666             removeUserData(userId);
2667         }
2668     }
2669
2670     private void handlePasswordExpirationNotification(int userHandle) {
2671         synchronized (this) {
2672             final long now = System.currentTimeMillis();
2673
2674             List<ActiveAdmin> admins = getActiveAdminsForLockscreenPoliciesLocked(
2675                     userHandle, /* parent */ false);
2676             final int N = admins.size();
2677             for (int i = 0; i < N; i++) {
2678                 ActiveAdmin admin = admins.get(i);
2679                 if (admin.info.usesPolicy(DeviceAdminInfo.USES_POLICY_EXPIRE_PASSWORD)
2680                         && admin.passwordExpirationTimeout > 0L
2681                         && now >= admin.passwordExpirationDate - EXPIRATION_GRACE_PERIOD_MS
2682                         && admin.passwordExpirationDate > 0L) {
2683                     sendAdminCommandLocked(admin,
2684                             DeviceAdminReceiver.ACTION_PASSWORD_EXPIRING);
2685                 }
2686             }
2687             setExpirationAlarmCheckLocked(mContext, userHandle, /* parent */ false);
2688         }
2689     }
2690
2691     private class MonitoringCertNotificationTask extends AsyncTask<Integer, Void, Void> {
2692         @Override
2693         protected Void doInBackground(Integer... params) {
2694             int userHandle = params[0];
2695
2696             if (userHandle == UserHandle.USER_ALL) {
2697                 for (UserInfo userInfo : mUserManager.getUsers(true)) {
2698                     manageNotification(userInfo.getUserHandle());
2699                 }
2700             } else {
2701                 manageNotification(UserHandle.of(userHandle));
2702             }
2703             return null;
2704         }
2705
2706         private void manageNotification(UserHandle userHandle) {
2707             if (!mUserManager.isUserUnlocked(userHandle)) {
2708                 return;
2709             }
2710
2711             // Call out to KeyChain to check for CAs which are waiting for approval.
2712             final List<String> pendingCertificates;
2713             try {
2714                 pendingCertificates = getInstalledCaCertificates(userHandle);
2715             } catch (RemoteException | RuntimeException e) {
2716                 Log.e(LOG_TAG, "Could not retrieve certificates from KeyChain service", e);
2717                 return;
2718             }
2719
2720             synchronized (DevicePolicyManagerService.this) {
2721                 final DevicePolicyData policy = getUserData(userHandle.getIdentifier());
2722
2723                 // Remove deleted certificates. Flush xml if necessary.
2724                 if (policy.mAcceptedCaCertificates.retainAll(pendingCertificates)) {
2725                     saveSettingsLocked(userHandle.getIdentifier());
2726                 }
2727                 // Trim to approved certificates.
2728                 pendingCertificates.removeAll(policy.mAcceptedCaCertificates);
2729             }
2730
2731             if (pendingCertificates.isEmpty()) {
2732                 mInjector.getNotificationManager().cancelAsUser(
2733                         null, MONITORING_CERT_NOTIFICATION_ID, userHandle);
2734                 return;
2735             }
2736
2737             // Build and show a warning notification
2738             int smallIconId;
2739             String contentText;
2740             int parentUserId = userHandle.getIdentifier();
2741             if (getProfileOwner(userHandle.getIdentifier()) != null) {
2742                 contentText = mContext.getString(R.string.ssl_ca_cert_noti_managed,
2743                         getProfileOwnerName(userHandle.getIdentifier()));
2744                 smallIconId = R.drawable.stat_sys_certificate_info;
2745                 parentUserId = getProfileParentId(userHandle.getIdentifier());
2746             } else if (getDeviceOwnerUserId() == userHandle.getIdentifier()) {
2747                 contentText = mContext.getString(R.string.ssl_ca_cert_noti_managed,
2748                         getDeviceOwnerName());
2749                 smallIconId = R.drawable.stat_sys_certificate_info;
2750             } else {
2751                 contentText = mContext.getString(R.string.ssl_ca_cert_noti_by_unknown);
2752                 smallIconId = android.R.drawable.stat_sys_warning;
2753             }
2754
2755             final int numberOfCertificates = pendingCertificates.size();
2756             Intent dialogIntent = new Intent(Settings.ACTION_MONITORING_CERT_INFO);
2757             dialogIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_CLEAR_TASK);
2758             dialogIntent.setPackage("com.android.settings");
2759             dialogIntent.putExtra(Settings.EXTRA_NUMBER_OF_CERTIFICATES, numberOfCertificates);
2760             dialogIntent.putExtra(Intent.EXTRA_USER_ID, userHandle.getIdentifier());
2761             PendingIntent notifyIntent = PendingIntent.getActivityAsUser(mContext, 0,
2762                     dialogIntent, PendingIntent.FLAG_UPDATE_CURRENT, null,
2763                     new UserHandle(parentUserId));
2764
2765             final Context userContext;
2766             try {
2767                 final String packageName = mContext.getPackageName();
2768                 userContext = mContext.createPackageContextAsUser(packageName, 0, userHandle);
2769             } catch (PackageManager.NameNotFoundException e) {
2770                 Log.e(LOG_TAG, "Create context as " + userHandle + " failed", e);
2771                 return;
2772             }
2773             final Notification noti = new Notification.Builder(userContext)
2774                 .setSmallIcon(smallIconId)
2775                 .setContentTitle(mContext.getResources().getQuantityText(
2776                         R.plurals.ssl_ca_cert_warning, numberOfCertificates))
2777                 .setContentText(contentText)
2778                 .setContentIntent(notifyIntent)
2779                 .setPriority(Notification.PRIORITY_HIGH)
2780                 .setShowWhen(false)
2781                 .setColor(mContext.getColor(
2782                         com.android.internal.R.color.system_notification_accent_color))
2783                 .build();
2784
2785             mInjector.getNotificationManager().notifyAsUser(
2786                     null, MONITORING_CERT_NOTIFICATION_ID, noti, userHandle);
2787         }
2788
2789         private List<String> getInstalledCaCertificates(UserHandle userHandle)
2790                 throws RemoteException, RuntimeException {
2791             KeyChainConnection conn = null;
2792             try {
2793                 conn = KeyChain.bindAsUser(mContext, userHandle);
2794                 List<ParcelableString> aliases = conn.getService().getUserCaAliases().getList();
2795                 List<String> result = new ArrayList<>(aliases.size());
2796                 for (int i = 0; i < aliases.size(); i++) {
2797                     result.add(aliases.get(i).string);
2798                 }
2799                 return result;
2800             } catch (InterruptedException e) {
2801                 Thread.currentThread().interrupt();
2802                 return null;
2803             } catch (AssertionError e) {
2804                 throw new RuntimeException(e);
2805             } finally {
2806                 if (conn != null) {
2807                     conn.close();
2808                 }
2809             }
2810         }
2811     }
2812
2813     /**
2814      * @param adminReceiver The admin to add
2815      * @param refreshing true = update an active admin, no error
2816      */
2817     @Override
2818     public void setActiveAdmin(ComponentName adminReceiver, boolean refreshing, int userHandle) {
2819         if (!mHasFeature) {
2820             return;
2821         }
2822         setActiveAdmin(adminReceiver, refreshing, userHandle, null);
2823     }
2824
2825     private void setActiveAdmin(ComponentName adminReceiver, boolean refreshing, int userHandle,
2826             Bundle onEnableData) {
2827         mContext.enforceCallingOrSelfPermission(
2828                 android.Manifest.permission.MANAGE_DEVICE_ADMINS, null);
2829         enforceFullCrossUsersPermission(userHandle);
2830
2831         DevicePolicyData policy = getUserData(userHandle);
2832         DeviceAdminInfo info = findAdmin(adminReceiver, userHandle,
2833                 /* throwForMissionPermission= */ true);
2834         if (info == null) {
2835             throw new IllegalArgumentException("Bad admin: " + adminReceiver);
2836         }
2837         if (!info.getActivityInfo().applicationInfo.isInternal()) {
2838             throw new IllegalArgumentException("Only apps in internal storage can be active admin: "
2839                     + adminReceiver);
2840         }
2841         synchronized (this) {
2842             long ident = mInjector.binderClearCallingIdentity();
2843             try {
2844                 final ActiveAdmin existingAdmin
2845                         = getActiveAdminUncheckedLocked(adminReceiver, userHandle);
2846                 if (!refreshing && existingAdmin != null) {
2847                     throw new IllegalArgumentException("Admin is already added");
2848                 }
2849                 if (policy.mRemovingAdmins.contains(adminReceiver)) {
2850                     throw new IllegalArgumentException(
2851                             "Trying to set an admin which is being removed");
2852                 }
2853                 ActiveAdmin newAdmin = new ActiveAdmin(info, /* parent */ false);
2854                 newAdmin.testOnlyAdmin =
2855                         (existingAdmin != null) ? existingAdmin.testOnlyAdmin
2856                                 : isPackageTestOnly(adminReceiver.getPackageName(), userHandle);
2857                 policy.mAdminMap.put(adminReceiver, newAdmin);
2858                 int replaceIndex = -1;
2859                 final int N = policy.mAdminList.size();
2860                 for (int i=0; i < N; i++) {
2861                     ActiveAdmin oldAdmin = policy.mAdminList.get(i);
2862                     if (oldAdmin.info.getComponent().equals(adminReceiver)) {
2863                         replaceIndex = i;
2864                         break;
2865                     }
2866                 }
2867                 if (replaceIndex == -1) {
2868                     policy.mAdminList.add(newAdmin);
2869                     enableIfNecessary(info.getPackageName(), userHandle);
2870                 } else {
2871                     policy.mAdminList.set(replaceIndex, newAdmin);
2872                 }
2873                 saveSettingsLocked(userHandle);
2874                 sendAdminCommandLocked(newAdmin, DeviceAdminReceiver.ACTION_DEVICE_ADMIN_ENABLED,
2875                         onEnableData, null);
2876             } finally {
2877                 mInjector.binderRestoreCallingIdentity(ident);
2878             }
2879         }
2880     }
2881
2882     @Override
2883     public boolean isAdminActive(ComponentName adminReceiver, int userHandle) {
2884         if (!mHasFeature) {
2885             return false;
2886         }
2887         enforceFullCrossUsersPermission(userHandle);
2888         synchronized (this) {
2889             return getActiveAdminUncheckedLocked(adminReceiver, userHandle) != null;
2890         }
2891     }
2892
2893     @Override
2894     public boolean isRemovingAdmin(ComponentName adminReceiver, int userHandle) {
2895         if (!mHasFeature) {
2896             return false;
2897         }
2898         enforceFullCrossUsersPermission(userHandle);
2899         synchronized (this) {
2900             DevicePolicyData policyData = getUserData(userHandle);
2901             return policyData.mRemovingAdmins.contains(adminReceiver);
2902         }
2903     }
2904
2905     @Override
2906     public boolean hasGrantedPolicy(ComponentName adminReceiver, int policyId, int userHandle) {
2907         if (!mHasFeature) {
2908             return false;
2909         }
2910         enforceFullCrossUsersPermission(userHandle);
2911         synchronized (this) {
2912             ActiveAdmin administrator = getActiveAdminUncheckedLocked(adminReceiver, userHandle);
2913             if (administrator == null) {
2914                 throw new SecurityException("No active admin " + adminReceiver);
2915             }
2916             return administrator.info.usesPolicy(policyId);
2917         }
2918     }
2919
2920     @Override
2921     @SuppressWarnings("unchecked")
2922     public List<ComponentName> getActiveAdmins(int userHandle) {
2923         if (!mHasFeature) {
2924             return Collections.EMPTY_LIST;
2925         }
2926
2927         enforceFullCrossUsersPermission(userHandle);
2928         synchronized (this) {
2929             DevicePolicyData policy = getUserData(userHandle);
2930             final int N = policy.mAdminList.size();
2931             if (N <= 0) {
2932                 return null;
2933             }
2934             ArrayList<ComponentName> res = new ArrayList<ComponentName>(N);
2935             for (int i=0; i<N; i++) {
2936                 res.add(policy.mAdminList.get(i).info.getComponent());
2937             }
2938             return res;
2939         }
2940     }
2941
2942     @Override
2943     public boolean packageHasActiveAdmins(String packageName, int userHandle) {
2944         if (!mHasFeature) {
2945             return false;
2946         }
2947         enforceFullCrossUsersPermission(userHandle);
2948         synchronized (this) {
2949             DevicePolicyData policy = getUserData(userHandle);
2950             final int N = policy.mAdminList.size();
2951             for (int i=0; i<N; i++) {
2952                 if (policy.mAdminList.get(i).info.getPackageName().equals(packageName)) {
2953                     return true;
2954                 }
2955             }
2956             return false;
2957         }
2958     }
2959
2960     public void forceRemoveActiveAdmin(ComponentName adminReceiver, int userHandle) {
2961         if (!mHasFeature) {
2962             return;
2963         }
2964         Preconditions.checkNotNull(adminReceiver, "ComponentName is null");
2965         enforceShell("forceRemoveActiveAdmin");
2966         long ident = mInjector.binderClearCallingIdentity();
2967         try {
2968             synchronized (this)  {
2969                 if (!isAdminTestOnlyLocked(adminReceiver, userHandle)) {
2970                     throw new SecurityException("Attempt to remove non-test admin "
2971                             + adminReceiver + " " + userHandle);
2972                 }
2973
2974                 // If admin is a device or profile owner tidy that up first.
2975                 if (isDeviceOwner(adminReceiver, userHandle)) {
2976                     clearDeviceOwnerLocked(getDeviceOwnerAdminLocked(), userHandle);
2977                 }
2978                 if (isProfileOwner(adminReceiver, userHandle)) {
2979                     final ActiveAdmin admin = getActiveAdminUncheckedLocked(adminReceiver,
2980                             userHandle, /* parent */ false);
2981                     clearProfileOwnerLocked(admin, userHandle);
2982                 }
2983             }
2984             // Remove the admin skipping sending the broadcast.
2985             removeAdminArtifacts(adminReceiver, userHandle);
2986             Slog.i(LOG_TAG, "Admin " + adminReceiver + " removed from user " + userHandle);
2987         } finally {
2988             mInjector.binderRestoreCallingIdentity(ident);
2989         }
2990     }
2991
2992     /**
2993      * Return if a given package has testOnly="true", in which case we'll relax certain rules
2994      * for CTS.
2995      *
2996      * DO NOT use this method except in {@link #setActiveAdmin}.  Use {@link #isAdminTestOnlyLocked}
2997      * to check wehter an active admin is test-only or not.
2998      *
2999      * The system allows this flag to be changed when an app is updated, which is not good
3000      * for us.  So we persist the flag in {@link ActiveAdmin} when an admin is first installed,
3001      * and used the persisted version in actual checks. (See b/31382361 and b/28928996)
3002      */
3003     private boolean isPackageTestOnly(String packageName, int userHandle) {
3004         final ApplicationInfo ai;
3005         try {
3006             ai = mIPackageManager.getApplicationInfo(packageName,
3007                     (PackageManager.MATCH_DIRECT_BOOT_AWARE
3008                             | PackageManager.MATCH_DIRECT_BOOT_UNAWARE), userHandle);
3009         } catch (RemoteException e) {
3010             throw new IllegalStateException(e);
3011         }
3012         if (ai == null) {
3013             throw new IllegalStateException("Couldn't find package to remove admin "
3014                     + packageName + " " + userHandle);
3015         }
3016         return (ai.flags & ApplicationInfo.FLAG_TEST_ONLY) != 0;
3017     }
3018
3019     /**
3020      * See {@link #isPackageTestOnly}.
3021      */
3022     private boolean isAdminTestOnlyLocked(ComponentName who, int userHandle) {
3023         final ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle);
3024         return (admin != null) && admin.testOnlyAdmin;
3025     }
3026
3027     private void enforceShell(String method) {
3028         final int callingUid = Binder.getCallingUid();
3029         if (callingUid != Process.SHELL_UID && callingUid != Process.ROOT_UID) {
3030             throw new SecurityException("Non-shell user attempted to call " + method);
3031         }
3032     }
3033
3034     @Override
3035     public void removeActiveAdmin(ComponentName adminReceiver, int userHandle) {
3036         if (!mHasFeature) {
3037             return;
3038         }
3039         enforceFullCrossUsersPermission(userHandle);
3040         enforceUserUnlocked(userHandle);
3041         synchronized (this) {
3042             ActiveAdmin admin = getActiveAdminUncheckedLocked(adminReceiver, userHandle);
3043             if (admin == null) {
3044                 return;
3045             }
3046             // Active device/profile owners must remain active admins.
3047             if (isDeviceOwner(adminReceiver, userHandle)
3048                     || isProfileOwner(adminReceiver, userHandle)) {
3049                 Slog.e(LOG_TAG, "Device/profile owner cannot be removed: component=" +
3050                         adminReceiver);
3051                 return;
3052             }
3053             if (admin.getUid() != mInjector.binderGetCallingUid()) {
3054                 mContext.enforceCallingOrSelfPermission(
3055                         android.Manifest.permission.MANAGE_DEVICE_ADMINS, null);
3056             }
3057             long ident = mInjector.binderClearCallingIdentity();
3058             try {
3059                 removeActiveAdminLocked(adminReceiver, userHandle);
3060             } finally {
3061                 mInjector.binderRestoreCallingIdentity(ident);
3062             }
3063         }
3064     }
3065
3066     @Override
3067     public boolean isSeparateProfileChallengeAllowed(int userHandle) {
3068         ComponentName profileOwner = getProfileOwner(userHandle);
3069         // Profile challenge is supported on N or newer release.
3070         return profileOwner != null &&
3071                 getTargetSdk(profileOwner.getPackageName(), userHandle) > Build.VERSION_CODES.M;
3072     }
3073
3074     @Override
3075     public void setPasswordQuality(ComponentName who, int quality, boolean parent) {
3076         if (!mHasFeature) {
3077             return;
3078         }
3079         Preconditions.checkNotNull(who, "ComponentName is null");
3080         validateQualityConstant(quality);
3081
3082         synchronized (this) {
3083             ActiveAdmin ap = getActiveAdminForCallerLocked(
3084                     who, DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD, parent);
3085             if (ap.passwordQuality != quality) {
3086                 ap.passwordQuality = quality;
3087                 saveSettingsLocked(mInjector.userHandleGetCallingUserId());
3088             }
3089         }
3090     }
3091
3092     @Override
3093     public int getPasswordQuality(ComponentName who, int userHandle, boolean parent) {
3094         if (!mHasFeature) {
3095             return DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED;
3096         }
3097         enforceFullCrossUsersPermission(userHandle);
3098         synchronized (this) {
3099             int mode = DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED;
3100
3101             if (who != null) {
3102                 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle, parent);
3103                 return admin != null ? admin.passwordQuality : mode;
3104             }
3105
3106             // Return the strictest policy across all participating admins.
3107             List<ActiveAdmin> admins =
3108                     getActiveAdminsForLockscreenPoliciesLocked(userHandle, parent);
3109             final int N = admins.size();
3110             for (int i = 0; i < N; i++) {
3111                 ActiveAdmin admin = admins.get(i);
3112                 if (mode < admin.passwordQuality) {
3113                     mode = admin.passwordQuality;
3114                 }
3115             }
3116             return mode;
3117         }
3118     }
3119
3120     private List<ActiveAdmin> getActiveAdminsForLockscreenPoliciesLocked(
3121             int userHandle, boolean parent) {
3122         if (!parent && isSeparateProfileChallengeEnabled(userHandle)) {
3123             // If this user has a separate challenge, only return its restrictions.
3124             return getUserDataUnchecked(userHandle).mAdminList;
3125         } else {
3126             // Return all admins for this user and the profiles that are visible from this
3127             // user that do not use a separate work challenge.
3128             ArrayList<ActiveAdmin> admins = new ArrayList<ActiveAdmin>();
3129             for (UserInfo userInfo : mUserManager.getProfiles(userHandle)) {
3130                 DevicePolicyData policy = getUserData(userInfo.id);
3131                 if (!userInfo.isManagedProfile()) {
3132                     admins.addAll(policy.mAdminList);
3133                 } else {
3134                     // For managed profiles, we always include the policies set on the parent
3135                     // profile. Additionally, we include the ones set on the managed profile
3136                     // if no separate challenge is in place.
3137                     boolean hasSeparateChallenge = isSeparateProfileChallengeEnabled(userInfo.id);
3138                     final int N = policy.mAdminList.size();
3139                     for (int i = 0; i < N; i++) {
3140                         ActiveAdmin admin = policy.mAdminList.get(i);
3141                         if (admin.hasParentActiveAdmin()) {
3142                             admins.add(admin.getParentActiveAdmin());
3143                         }
3144                         if (!hasSeparateChallenge) {
3145                             admins.add(admin);
3146                         }
3147                     }
3148                 }
3149             }
3150             return admins;
3151         }
3152     }
3153
3154     private boolean isSeparateProfileChallengeEnabled(int userHandle) {
3155         long ident = mInjector.binderClearCallingIdentity();
3156         try {
3157             return mLockPatternUtils.isSeparateProfileChallengeEnabled(userHandle);
3158         } finally {
3159             mInjector.binderRestoreCallingIdentity(ident);
3160         }
3161     }
3162
3163     @Override
3164     public void setPasswordMinimumLength(ComponentName who, int length, boolean parent) {
3165         if (!mHasFeature) {
3166             return;
3167         }
3168         Preconditions.checkNotNull(who, "ComponentName is null");
3169         synchronized (this) {
3170             ActiveAdmin ap = getActiveAdminForCallerLocked(
3171                     who, DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD, parent);
3172             if (ap.minimumPasswordLength != length) {
3173                 ap.minimumPasswordLength = length;
3174                 saveSettingsLocked(mInjector.userHandleGetCallingUserId());
3175             }
3176         }
3177     }
3178
3179     @Override
3180     public int getPasswordMinimumLength(ComponentName who, int userHandle, boolean parent) {
3181         if (!mHasFeature) {
3182             return 0;
3183         }
3184         enforceFullCrossUsersPermission(userHandle);
3185         synchronized (this) {
3186             int length = 0;
3187
3188             if (who != null) {
3189                 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle, parent);
3190                 return admin != null ? admin.minimumPasswordLength : length;
3191             }
3192
3193             // Return the strictest policy across all participating admins.
3194             List<ActiveAdmin> admins =
3195                     getActiveAdminsForLockscreenPoliciesLocked(userHandle, parent);
3196             final int N = admins.size();
3197             for (int i = 0; i < N; i++) {
3198                 ActiveAdmin admin = admins.get(i);
3199                 if (length < admin.minimumPasswordLength) {
3200                     length = admin.minimumPasswordLength;
3201                 }
3202             }
3203             return length;
3204         }
3205     }
3206
3207     @Override
3208     public void setPasswordHistoryLength(ComponentName who, int length, boolean parent) {
3209         if (!mHasFeature) {
3210             return;
3211         }
3212         Preconditions.checkNotNull(who, "ComponentName is null");
3213         synchronized (this) {
3214             ActiveAdmin ap = getActiveAdminForCallerLocked(
3215                     who, DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD, parent);
3216             if (ap.passwordHistoryLength != length) {
3217                 ap.passwordHistoryLength = length;
3218                 saveSettingsLocked(mInjector.userHandleGetCallingUserId());
3219             }
3220         }
3221     }
3222
3223     @Override
3224     public int getPasswordHistoryLength(ComponentName who, int userHandle, boolean parent) {
3225         if (!mHasFeature) {
3226             return 0;
3227         }
3228         enforceFullCrossUsersPermission(userHandle);
3229         synchronized (this) {
3230             int length = 0;
3231
3232             if (who != null) {
3233                 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle, parent);
3234                 return admin != null ? admin.passwordHistoryLength : length;
3235             }
3236
3237             // Return the strictest policy across all participating admins.
3238             List<ActiveAdmin> admins =
3239                     getActiveAdminsForLockscreenPoliciesLocked(userHandle, parent);
3240             final int N = admins.size();
3241             for (int i = 0; i < N; i++) {
3242                 ActiveAdmin admin = admins.get(i);
3243                 if (length < admin.passwordHistoryLength) {
3244                     length = admin.passwordHistoryLength;
3245                 }
3246             }
3247
3248             return length;
3249         }
3250     }
3251
3252     @Override
3253     public void setPasswordExpirationTimeout(ComponentName who, long timeout, boolean parent) {
3254         if (!mHasFeature) {
3255             return;
3256         }
3257         Preconditions.checkNotNull(who, "ComponentName is null");
3258         Preconditions.checkArgumentNonnegative(timeout, "Timeout must be >= 0 ms");
3259         final int userHandle = mInjector.userHandleGetCallingUserId();
3260         synchronized (this) {
3261             ActiveAdmin ap = getActiveAdminForCallerLocked(
3262                     who, DeviceAdminInfo.USES_POLICY_EXPIRE_PASSWORD, parent);
3263             // Calling this API automatically bumps the expiration date
3264             final long expiration = timeout > 0L ? (timeout + System.currentTimeMillis()) : 0L;
3265             ap.passwordExpirationDate = expiration;
3266             ap.passwordExpirationTimeout = timeout;
3267             if (timeout > 0L) {
3268                 Slog.w(LOG_TAG, "setPasswordExpiration(): password will expire on "
3269                         + DateFormat.getDateTimeInstance(DateFormat.DEFAULT, DateFormat.DEFAULT)
3270                         .format(new Date(expiration)));
3271             }
3272             saveSettingsLocked(userHandle);
3273
3274             // in case this is the first one, set the alarm on the appropriate user.
3275             setExpirationAlarmCheckLocked(mContext, userHandle, parent);
3276         }
3277     }
3278
3279     /**
3280      * Return a single admin's expiration cycle time, or the min of all cycle times.
3281      * Returns 0 if not configured.
3282      */
3283     @Override
3284     public long getPasswordExpirationTimeout(ComponentName who, int userHandle, boolean parent) {
3285         if (!mHasFeature) {
3286             return 0L;
3287         }
3288         enforceFullCrossUsersPermission(userHandle);
3289         synchronized (this) {
3290             long timeout = 0L;
3291
3292             if (who != null) {
3293                 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle, parent);
3294                 return admin != null ? admin.passwordExpirationTimeout : timeout;
3295             }
3296
3297             // Return the strictest policy across all participating admins.
3298             List<ActiveAdmin> admins =
3299                     getActiveAdminsForLockscreenPoliciesLocked(userHandle, parent);
3300             final int N = admins.size();
3301             for (int i = 0; i < N; i++) {
3302                 ActiveAdmin admin = admins.get(i);
3303                 if (timeout == 0L || (admin.passwordExpirationTimeout != 0L
3304                         && timeout > admin.passwordExpirationTimeout)) {
3305                     timeout = admin.passwordExpirationTimeout;
3306                 }
3307             }
3308             return timeout;
3309         }
3310     }
3311
3312     @Override
3313     public boolean addCrossProfileWidgetProvider(ComponentName admin, String packageName) {
3314         final int userId = UserHandle.getCallingUserId();
3315         List<String> changedProviders = null;
3316
3317         synchronized (this) {
3318             ActiveAdmin activeAdmin = getActiveAdminForCallerLocked(admin,
3319                     DeviceAdminInfo.USES_POLICY_PROFILE_OWNER);
3320             if (activeAdmin.crossProfileWidgetProviders == null) {
3321                 activeAdmin.crossProfileWidgetProviders = new ArrayList<>();
3322             }
3323             List<String> providers = activeAdmin.crossProfileWidgetProviders;
3324             if (!providers.contains(packageName)) {
3325                 providers.add(packageName);
3326                 changedProviders = new ArrayList<>(providers);
3327                 saveSettingsLocked(userId);
3328             }
3329         }
3330
3331         if (changedProviders != null) {
3332             mLocalService.notifyCrossProfileProvidersChanged(userId, changedProviders);
3333             return true;
3334         }
3335
3336         return false;
3337     }
3338
3339     @Override
3340     public boolean removeCrossProfileWidgetProvider(ComponentName admin, String packageName) {
3341         final int userId = UserHandle.getCallingUserId();
3342         List<String> changedProviders = null;
3343
3344         synchronized (this) {
3345             ActiveAdmin activeAdmin = getActiveAdminForCallerLocked(admin,
3346                     DeviceAdminInfo.USES_POLICY_PROFILE_OWNER);
3347             if (activeAdmin.crossProfileWidgetProviders == null) {
3348                 return false;
3349             }
3350             List<String> providers = activeAdmin.crossProfileWidgetProviders;
3351             if (providers.remove(packageName)) {
3352                 changedProviders = new ArrayList<>(providers);
3353                 saveSettingsLocked(userId);
3354             }
3355         }
3356
3357         if (changedProviders != null) {
3358             mLocalService.notifyCrossProfileProvidersChanged(userId, changedProviders);
3359             return true;
3360         }
3361
3362         return false;
3363     }
3364
3365     @Override
3366     public List<String> getCrossProfileWidgetProviders(ComponentName admin) {
3367         synchronized (this) {
3368             ActiveAdmin activeAdmin = getActiveAdminForCallerLocked(admin,
3369                     DeviceAdminInfo.USES_POLICY_PROFILE_OWNER);
3370             if (activeAdmin.crossProfileWidgetProviders == null
3371                     || activeAdmin.crossProfileWidgetProviders.isEmpty()) {
3372                 return null;
3373             }
3374             if (mInjector.binderIsCallingUidMyUid()) {
3375                 return new ArrayList<>(activeAdmin.crossProfileWidgetProviders);
3376             } else {
3377                 return activeAdmin.crossProfileWidgetProviders;
3378             }
3379         }
3380     }
3381
3382     /**
3383      * Return a single admin's expiration date/time, or the min (soonest) for all admins.
3384      * Returns 0 if not configured.
3385      */
3386     private long getPasswordExpirationLocked(ComponentName who, int userHandle, boolean parent) {
3387         long timeout = 0L;
3388
3389         if (who != null) {
3390             ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle, parent);
3391             return admin != null ? admin.passwordExpirationDate : timeout;
3392         }
3393
3394         // Return the strictest policy across all participating admins.
3395         List<ActiveAdmin> admins = getActiveAdminsForLockscreenPoliciesLocked(userHandle, parent);
3396         final int N = admins.size();
3397         for (int i = 0; i < N; i++) {
3398             ActiveAdmin admin = admins.get(i);
3399             if (timeout == 0L || (admin.passwordExpirationDate != 0
3400                     && timeout > admin.passwordExpirationDate)) {
3401                 timeout = admin.passwordExpirationDate;
3402             }
3403         }
3404         return timeout;
3405     }
3406
3407     @Override
3408     public long getPasswordExpiration(ComponentName who, int userHandle, boolean parent) {
3409         if (!mHasFeature) {
3410             return 0L;
3411         }
3412         enforceFullCrossUsersPermission(userHandle);
3413         synchronized (this) {
3414             return getPasswordExpirationLocked(who, userHandle, parent);
3415         }
3416     }
3417
3418     @Override
3419     public void setPasswordMinimumUpperCase(ComponentName who, int length, boolean parent) {
3420         if (!mHasFeature) {
3421             return;
3422         }
3423         Preconditions.checkNotNull(who, "ComponentName is null");
3424         synchronized (this) {
3425             ActiveAdmin ap = getActiveAdminForCallerLocked(
3426                     who, DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD, parent);
3427             if (ap.minimumPasswordUpperCase != length) {
3428                 ap.minimumPasswordUpperCase = length;
3429                 saveSettingsLocked(mInjector.userHandleGetCallingUserId());
3430             }
3431         }
3432     }
3433
3434     @Override
3435     public int getPasswordMinimumUpperCase(ComponentName who, int userHandle, boolean parent) {
3436         if (!mHasFeature) {
3437             return 0;
3438         }
3439         enforceFullCrossUsersPermission(userHandle);
3440         synchronized (this) {
3441             int length = 0;
3442
3443             if (who != null) {
3444                 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle, parent);
3445                 return admin != null ? admin.minimumPasswordUpperCase : length;
3446             }
3447
3448             // Return the strictest policy across all participating admins.
3449             List<ActiveAdmin> admins =
3450                     getActiveAdminsForLockscreenPoliciesLocked(userHandle, parent);
3451             final int N = admins.size();
3452             for (int i = 0; i < N; i++) {
3453                 ActiveAdmin admin = admins.get(i);
3454                 if (length < admin.minimumPasswordUpperCase) {
3455                     length = admin.minimumPasswordUpperCase;
3456                 }
3457             }
3458             return length;
3459         }
3460     }
3461
3462     @Override
3463     public void setPasswordMinimumLowerCase(ComponentName who, int length, boolean parent) {
3464         Preconditions.checkNotNull(who, "ComponentName is null");
3465         synchronized (this) {
3466             ActiveAdmin ap = getActiveAdminForCallerLocked(
3467                     who, DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD, parent);
3468             if (ap.minimumPasswordLowerCase != length) {
3469                 ap.minimumPasswordLowerCase = length;
3470                 saveSettingsLocked(mInjector.userHandleGetCallingUserId());
3471             }
3472         }
3473     }
3474
3475     @Override
3476     public int getPasswordMinimumLowerCase(ComponentName who, int userHandle, boolean parent) {
3477         if (!mHasFeature) {
3478             return 0;
3479         }
3480         enforceFullCrossUsersPermission(userHandle);
3481         synchronized (this) {
3482             int length = 0;
3483
3484             if (who != null) {
3485                 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle, parent);
3486                 return admin != null ? admin.minimumPasswordLowerCase : length;
3487             }
3488
3489             // Return the strictest policy across all participating admins.
3490             List<ActiveAdmin> admins =
3491                     getActiveAdminsForLockscreenPoliciesLocked(userHandle, parent);
3492             final int N = admins.size();
3493             for (int i = 0; i < N; i++) {
3494                 ActiveAdmin admin = admins.get(i);
3495                 if (length < admin.minimumPasswordLowerCase) {
3496                     length = admin.minimumPasswordLowerCase;
3497                 }
3498             }
3499             return length;
3500         }
3501     }
3502
3503     @Override
3504     public void setPasswordMinimumLetters(ComponentName who, int length, boolean parent) {
3505         if (!mHasFeature) {
3506             return;
3507         }
3508         Preconditions.checkNotNull(who, "ComponentName is null");
3509         synchronized (this) {
3510             ActiveAdmin ap = getActiveAdminForCallerLocked(
3511                     who, DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD, parent);
3512             if (ap.minimumPasswordLetters != length) {
3513                 ap.minimumPasswordLetters = length;
3514                 saveSettingsLocked(mInjector.userHandleGetCallingUserId());
3515             }
3516         }
3517     }
3518
3519     @Override
3520     public int getPasswordMinimumLetters(ComponentName who, int userHandle, boolean parent) {
3521         if (!mHasFeature) {
3522             return 0;
3523         }
3524         enforceFullCrossUsersPermission(userHandle);
3525         synchronized (this) {
3526             int length = 0;
3527
3528             if (who != null) {
3529                 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle, parent);
3530                 return admin != null ? admin.minimumPasswordLetters : length;
3531             }
3532
3533             // Return the strictest policy across all participating admins.
3534             List<ActiveAdmin> admins =
3535                     getActiveAdminsForLockscreenPoliciesLocked(userHandle, parent);
3536             final int N = admins.size();
3537             for (int i = 0; i < N; i++) {
3538                 ActiveAdmin admin = admins.get(i);
3539                 if (!isLimitPasswordAllowed(admin, PASSWORD_QUALITY_COMPLEX)) {
3540                     continue;
3541                 }
3542                 if (length < admin.minimumPasswordLetters) {
3543                     length = admin.minimumPasswordLetters;
3544                 }
3545             }
3546             return length;
3547         }
3548     }
3549
3550     @Override
3551     public void setPasswordMinimumNumeric(ComponentName who, int length, boolean parent) {
3552         if (!mHasFeature) {
3553             return;
3554         }
3555         Preconditions.checkNotNull(who, "ComponentName is null");
3556         synchronized (this) {
3557             ActiveAdmin ap = getActiveAdminForCallerLocked(
3558                     who, DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD, parent);
3559             if (ap.minimumPasswordNumeric != length) {
3560                 ap.minimumPasswordNumeric = length;
3561                 saveSettingsLocked(mInjector.userHandleGetCallingUserId());
3562             }
3563         }
3564     }
3565
3566     @Override
3567     public int getPasswordMinimumNumeric(ComponentName who, int userHandle, boolean parent) {
3568         if (!mHasFeature) {
3569             return 0;
3570         }
3571         enforceFullCrossUsersPermission(userHandle);
3572         synchronized (this) {
3573             int length = 0;
3574
3575             if (who != null) {
3576                 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle, parent);
3577                 return admin != null ? admin.minimumPasswordNumeric : length;
3578             }
3579
3580             // Return the strictest policy across all participating admins.
3581             List<ActiveAdmin> admins =
3582                     getActiveAdminsForLockscreenPoliciesLocked(userHandle, parent);
3583             final int N = admins.size();
3584             for (int i = 0; i < N; i++) {
3585                 ActiveAdmin admin = admins.get(i);
3586                 if (!isLimitPasswordAllowed(admin, PASSWORD_QUALITY_COMPLEX)) {
3587                     continue;
3588                 }
3589                 if (length < admin.minimumPasswordNumeric) {
3590                     length = admin.minimumPasswordNumeric;
3591                 }
3592             }
3593             return length;
3594         }
3595     }
3596
3597     @Override
3598     public void setPasswordMinimumSymbols(ComponentName who, int length, boolean parent) {
3599         if (!mHasFeature) {
3600             return;
3601         }
3602         Preconditions.checkNotNull(who, "ComponentName is null");
3603         synchronized (this) {
3604             ActiveAdmin ap = getActiveAdminForCallerLocked(
3605                     who, DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD, parent);
3606             if (ap.minimumPasswordSymbols != length) {
3607                 ap.minimumPasswordSymbols = length;
3608                 saveSettingsLocked(mInjector.userHandleGetCallingUserId());
3609             }
3610         }
3611     }
3612
3613     @Override
3614     public int getPasswordMinimumSymbols(ComponentName who, int userHandle, boolean parent) {
3615         if (!mHasFeature) {
3616             return 0;
3617         }
3618         enforceFullCrossUsersPermission(userHandle);
3619         synchronized (this) {
3620             int length = 0;
3621
3622             if (who != null) {
3623                 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle, parent);
3624                 return admin != null ? admin.minimumPasswordSymbols : length;
3625             }
3626
3627             // Return the strictest policy across all participating admins.
3628             List<ActiveAdmin> admins =
3629                     getActiveAdminsForLockscreenPoliciesLocked(userHandle, parent);
3630             final int N = admins.size();
3631             for (int i = 0; i < N; i++) {
3632                 ActiveAdmin admin = admins.get(i);
3633                 if (!isLimitPasswordAllowed(admin, PASSWORD_QUALITY_COMPLEX)) {
3634                     continue;
3635                 }
3636                 if (length < admin.minimumPasswordSymbols) {
3637                     length = admin.minimumPasswordSymbols;
3638                 }
3639             }
3640             return length;
3641         }
3642     }
3643
3644     @Override
3645     public void setPasswordMinimumNonLetter(ComponentName who, int length, boolean parent) {
3646         if (!mHasFeature) {
3647             return;
3648         }
3649         Preconditions.checkNotNull(who, "ComponentName is null");
3650         synchronized (this) {
3651             ActiveAdmin ap = getActiveAdminForCallerLocked(
3652                     who, DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD, parent);
3653             if (ap.minimumPasswordNonLetter != length) {
3654                 ap.minimumPasswordNonLetter = length;
3655                 saveSettingsLocked(mInjector.userHandleGetCallingUserId());
3656             }
3657         }
3658     }
3659
3660     @Override
3661     public int getPasswordMinimumNonLetter(ComponentName who, int userHandle, boolean parent) {
3662         if (!mHasFeature) {
3663             return 0;
3664         }
3665         enforceFullCrossUsersPermission(userHandle);
3666         synchronized (this) {
3667             int length = 0;
3668
3669             if (who != null) {
3670                 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle, parent);
3671                 return admin != null ? admin.minimumPasswordNonLetter : length;
3672             }
3673
3674             // Return the strictest policy across all participating admins.
3675             List<ActiveAdmin> admins =
3676                     getActiveAdminsForLockscreenPoliciesLocked(userHandle, parent);
3677             final int N = admins.size();
3678             for (int i = 0; i < N; i++) {
3679                 ActiveAdmin admin = admins.get(i);
3680                 if (!isLimitPasswordAllowed(admin, PASSWORD_QUALITY_COMPLEX)) {
3681                     continue;
3682                 }
3683                 if (length < admin.minimumPasswordNonLetter) {
3684                     length = admin.minimumPasswordNonLetter;
3685                 }
3686             }
3687             return length;
3688         }
3689     }
3690
3691     @Override
3692     public boolean isActivePasswordSufficient(int userHandle, boolean parent) {
3693         if (!mHasFeature) {
3694             return true;
3695         }
3696         enforceFullCrossUsersPermission(userHandle);
3697
3698         synchronized (this) {
3699             // This API can only be called by an active device admin,
3700             // so try to retrieve it to check that the caller is one.
3701             getActiveAdminForCallerLocked(null, DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD, parent);
3702             DevicePolicyData policy = getUserDataUnchecked(getCredentialOwner(userHandle, parent));
3703             return isActivePasswordSufficientForUserLocked(policy, userHandle, parent);
3704         }
3705     }
3706
3707     @Override
3708     public boolean isProfileActivePasswordSufficientForParent(int userHandle) {
3709         if (!mHasFeature) {
3710             return true;
3711         }
3712         enforceFullCrossUsersPermission(userHandle);
3713         enforceManagedProfile(userHandle, "call APIs refering to the parent profile");
3714
3715         synchronized (this) {
3716             int targetUser = getProfileParentId(userHandle);
3717             DevicePolicyData policy = getUserDataUnchecked(getCredentialOwner(userHandle, false));
3718             return isActivePasswordSufficientForUserLocked(policy, targetUser, false);
3719         }
3720     }
3721
3722     private boolean isActivePasswordSufficientForUserLocked(
3723             DevicePolicyData policy, int userHandle, boolean parent) {
3724         final int requiredPasswordQuality = getPasswordQuality(null, userHandle, parent);
3725         if (policy.mActivePasswordQuality < requiredPasswordQuality) {
3726             return false;
3727         }
3728         if (requiredPasswordQuality >= DevicePolicyManager.PASSWORD_QUALITY_NUMERIC
3729                 && policy.mActivePasswordLength < getPasswordMinimumLength(
3730                         null, userHandle, parent)) {
3731             return false;
3732         }
3733         if (requiredPasswordQuality != DevicePolicyManager.PASSWORD_QUALITY_COMPLEX) {
3734             return true;
3735         }
3736         return policy.mActivePasswordUpperCase >= getPasswordMinimumUpperCase(
3737                     null, userHandle, parent)
3738                 && policy.mActivePasswordLowerCase >= getPasswordMinimumLowerCase(
3739                         null, userHandle, parent)
3740                 && policy.mActivePasswordLetters >= getPasswordMinimumLetters(
3741                         null, userHandle, parent)
3742                 && policy.mActivePasswordNumeric >= getPasswordMinimumNumeric(
3743                         null, userHandle, parent)
3744                 && policy.mActivePasswordSymbols >= getPasswordMinimumSymbols(
3745                         null, userHandle, parent)
3746                 && policy.mActivePasswordNonLetter >= getPasswordMinimumNonLetter(
3747                         null, userHandle, parent);
3748     }
3749
3750     @Override
3751     public int getCurrentFailedPasswordAttempts(int userHandle, boolean parent) {
3752         enforceFullCrossUsersPermission(userHandle);
3753         synchronized (this) {
3754             if (!isCallerWithSystemUid()) {
3755                 // This API can only be called by an active device admin,
3756                 // so try to retrieve it to check that the caller is one.
3757                 getActiveAdminForCallerLocked(
3758                         null, DeviceAdminInfo.USES_POLICY_WATCH_LOGIN, parent);
3759             }
3760
3761             DevicePolicyData policy = getUserDataUnchecked(getCredentialOwner(userHandle, parent));
3762
3763             return policy.mFailedPasswordAttempts;
3764         }
3765     }
3766
3767     @Override
3768     public void setMaximumFailedPasswordsForWipe(ComponentName who, int num, boolean parent) {
3769         if (!mHasFeature) {
3770             return;
3771         }
3772         Preconditions.checkNotNull(who, "ComponentName is null");
3773         synchronized (this) {
3774             // This API can only be called by an active device admin,
3775             // so try to retrieve it to check that the caller is one.
3776             getActiveAdminForCallerLocked(
3777                     who, DeviceAdminInfo.USES_POLICY_WIPE_DATA, parent);
3778             ActiveAdmin ap = getActiveAdminForCallerLocked(
3779                     who, DeviceAdminInfo.USES_POLICY_WATCH_LOGIN, parent);
3780             if (ap.maximumFailedPasswordsForWipe != num) {
3781                 ap.maximumFailedPasswordsForWipe = num;
3782                 saveSettingsLocked(mInjector.userHandleGetCallingUserId());
3783             }
3784         }
3785     }
3786
3787     @Override
3788     public int getMaximumFailedPasswordsForWipe(ComponentName who, int userHandle, boolean parent) {
3789         if (!mHasFeature) {
3790             return 0;
3791         }
3792         enforceFullCrossUsersPermission(userHandle);
3793         synchronized (this) {
3794             ActiveAdmin admin = (who != null)
3795                     ? getActiveAdminUncheckedLocked(who, userHandle, parent)
3796                     : getAdminWithMinimumFailedPasswordsForWipeLocked(userHandle, parent);
3797             return admin != null ? admin.maximumFailedPasswordsForWipe : 0;
3798         }
3799     }
3800
3801     @Override
3802     public int getProfileWithMinimumFailedPasswordsForWipe(int userHandle, boolean parent) {
3803         if (!mHasFeature) {
3804             return UserHandle.USER_NULL;
3805         }
3806         enforceFullCrossUsersPermission(userHandle);
3807         synchronized (this) {
3808             ActiveAdmin admin = getAdminWithMinimumFailedPasswordsForWipeLocked(
3809                     userHandle, parent);
3810             return admin != null ? admin.getUserHandle().getIdentifier() : UserHandle.USER_NULL;
3811         }
3812     }
3813
3814     /**
3815      * Returns the admin with the strictest policy on maximum failed passwords for:
3816      * <ul>
3817      *   <li>this user if it has a separate profile challenge, or
3818      *   <li>this user and all profiles that don't have their own challenge otherwise.
3819      * </ul>
3820      * <p>If the policy for the primary and any other profile are equal, it returns the admin for
3821      * the primary profile.
3822      * Returns {@code null} if no participating admin has that policy set.
3823      */
3824     private ActiveAdmin getAdminWithMinimumFailedPasswordsForWipeLocked(
3825             int userHandle, boolean parent) {
3826         int count = 0;
3827         ActiveAdmin strictestAdmin = null;
3828
3829         // Return the strictest policy across all participating admins.
3830         List<ActiveAdmin> admins = getActiveAdminsForLockscreenPoliciesLocked(userHandle, parent);
3831         final int N = admins.size();
3832         for (int i = 0; i < N; i++) {
3833             ActiveAdmin admin = admins.get(i);
3834             if (admin.maximumFailedPasswordsForWipe ==
3835                     ActiveAdmin.DEF_MAXIMUM_FAILED_PASSWORDS_FOR_WIPE) {
3836                 continue;  // No max number of failed passwords policy set for this profile.
3837             }
3838
3839             // We always favor the primary profile if several profiles have the same value set.
3840             int userId = admin.getUserHandle().getIdentifier();
3841             if (count == 0 ||
3842                     count > admin.maximumFailedPasswordsForWipe ||
3843                     (count == admin.maximumFailedPasswordsForWipe &&
3844                             getUserInfo(userId).isPrimary())) {
3845                 count = admin.maximumFailedPasswordsForWipe;
3846                 strictestAdmin = admin;
3847             }
3848         }
3849         return strictestAdmin;
3850     }
3851
3852     private UserInfo getUserInfo(@UserIdInt int userId) {
3853         final long token = mInjector.binderClearCallingIdentity();
3854         try {
3855             return mUserManager.getUserInfo(userId);
3856         } finally {
3857             mInjector.binderRestoreCallingIdentity(token);
3858         }
3859     }
3860
3861     @Override
3862     public boolean resetPassword(String passwordOrNull, int flags) throws RemoteException {
3863         if (!mHasFeature) {
3864             return false;
3865         }
3866         final int callingUid = mInjector.binderGetCallingUid();
3867         final int userHandle = mInjector.userHandleGetCallingUserId();
3868
3869         String password = passwordOrNull != null ? passwordOrNull : "";
3870
3871         // Password resetting to empty/null is not allowed for managed profiles.
3872         if (TextUtils.isEmpty(password)) {
3873             enforceNotManagedProfile(userHandle, "clear the active password");
3874         }
3875
3876         int quality;
3877         synchronized (this) {
3878             // If caller has PO (or DO) it can change the password, so see if that's the case first.
3879             ActiveAdmin admin = getActiveAdminWithPolicyForUidLocked(
3880                     null, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER, callingUid);
3881             final boolean preN;
3882             if (admin != null) {
3883                 preN = getTargetSdk(admin.info.getPackageName(),
3884                         userHandle) <= android.os.Build.VERSION_CODES.M;
3885             } else {
3886                 // Otherwise, make sure the caller has any active admin with the right policy.
3887                 admin = getActiveAdminForCallerLocked(null,
3888                         DeviceAdminInfo.USES_POLICY_RESET_PASSWORD);
3889                 preN = getTargetSdk(admin.info.getPackageName(),
3890                         userHandle) <= android.os.Build.VERSION_CODES.M;
3891
3892                 // As of N, password resetting to empty/null is not allowed anymore.
3893                 // TODO Should we allow DO/PO to set an empty password?
3894                 if (TextUtils.isEmpty(password)) {
3895                     if (!preN) {
3896                         throw new SecurityException("Cannot call with null password");
3897                     } else {
3898                         Slog.e(LOG_TAG, "Cannot call with null password");
3899                         return false;
3900                     }
3901                 }
3902                 // As of N, password cannot be changed by the admin if it is already set.
3903                 if (isLockScreenSecureUnchecked(userHandle)) {
3904                     if (!preN) {
3905                         throw new SecurityException("Admin cannot change current password");
3906                     } else {
3907                         Slog.e(LOG_TAG, "Admin cannot change current password");
3908                         return false;
3909                     }
3910                 }
3911             }
3912             // Do not allow to reset password when current user has a managed profile
3913             if (!isManagedProfile(userHandle)) {
3914                 for (UserInfo userInfo : mUserManager.getProfiles(userHandle)) {
3915                     if (userInfo.isManagedProfile()) {
3916                         if (!preN) {
3917                             throw new IllegalStateException(
3918                                     "Cannot reset password on user has managed profile");
3919                         } else {
3920                             Slog.e(LOG_TAG, "Cannot reset password on user has managed profile");
3921                             return false;
3922                         }
3923                     }
3924                 }
3925             }
3926             // Do not allow to reset password when user is locked
3927             if (!mUserManager.isUserUnlocked(userHandle)) {
3928                 if (!preN) {
3929                     throw new IllegalStateException("Cannot reset password when user is locked");
3930                 } else {
3931                     Slog.e(LOG_TAG, "Cannot reset password when user is locked");
3932                     return false;
3933                 }
3934             }
3935
3936             quality = getPasswordQuality(null, userHandle, /* parent */ false);
3937             if (quality == DevicePolicyManager.PASSWORD_QUALITY_MANAGED) {
3938                 quality = DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED;
3939             }
3940             if (quality != DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED) {
3941                 int realQuality = LockPatternUtils.computePasswordQuality(password);
3942                 if (realQuality < quality
3943                         && quality != DevicePolicyManager.PASSWORD_QUALITY_COMPLEX) {
3944                     Slog.w(LOG_TAG, "resetPassword: password quality 0x"
3945                             + Integer.toHexString(realQuality)
3946                             + " does not meet required quality 0x"
3947                             + Integer.toHexString(quality));
3948                     return false;
3949                 }
3950                 quality = Math.max(realQuality, quality);
3951             }
3952             int length = getPasswordMinimumLength(null, userHandle, /* parent */ false);
3953             if (password.length() < length) {
3954                 Slog.w(LOG_TAG, "resetPassword: password length " + password.length()
3955                         + " does not meet required length " + length);
3956                 return false;
3957             }
3958             if (quality == DevicePolicyManager.PASSWORD_QUALITY_COMPLEX) {
3959                 int letters = 0;
3960                 int uppercase = 0;
3961                 int lowercase = 0;
3962                 int numbers = 0;
3963                 int symbols = 0;
3964                 int nonletter = 0;
3965                 for (int i = 0; i < password.length(); i++) {
3966                     char c = password.charAt(i);
3967                     if (c >= 'A' && c <= 'Z') {
3968                         letters++;
3969                         uppercase++;
3970                     } else if (c >= 'a' && c <= 'z') {
3971                         letters++;
3972                         lowercase++;
3973                     } else if (c >= '0' && c <= '9') {
3974                         numbers++;
3975                         nonletter++;
3976                     } else {
3977                         symbols++;
3978                         nonletter++;
3979                     }
3980                 }
3981                 int neededLetters = getPasswordMinimumLetters(null, userHandle, /* parent */ false);
3982                 if(letters < neededLetters) {
3983                     Slog.w(LOG_TAG, "resetPassword: number of letters " + letters
3984                             + " does not meet required number of letters " + neededLetters);
3985                     return false;
3986                 }
3987                 int neededNumbers = getPasswordMinimumNumeric(null, userHandle, /* parent */ false);
3988                 if (numbers < neededNumbers) {
3989                     Slog.w(LOG_TAG, "resetPassword: number of numerical digits " + numbers
3990                             + " does not meet required number of numerical digits "
3991                             + neededNumbers);
3992                     return false;
3993                 }
3994                 int neededLowerCase = getPasswordMinimumLowerCase(
3995                         null, userHandle, /* parent */ false);
3996                 if (lowercase < neededLowerCase) {
3997                     Slog.w(LOG_TAG, "resetPassword: number of lowercase letters " + lowercase
3998                             + " does not meet required number of lowercase letters "
3999                             + neededLowerCase);
4000                     return false;
4001                 }
4002                 int neededUpperCase = getPasswordMinimumUpperCase(
4003                         null, userHandle, /* parent */ false);
4004                 if (uppercase < neededUpperCase) {
4005                     Slog.w(LOG_TAG, "resetPassword: number of uppercase letters " + uppercase
4006                             + " does not meet required number of uppercase letters "
4007                             + neededUpperCase);
4008                     return false;
4009                 }
4010                 int neededSymbols = getPasswordMinimumSymbols(null, userHandle, /* parent */ false);
4011                 if (symbols < neededSymbols) {
4012                     Slog.w(LOG_TAG, "resetPassword: number of special symbols " + symbols
4013                             + " does not meet required number of special symbols " + neededSymbols);
4014                     return false;
4015                 }
4016                 int neededNonLetter = getPasswordMinimumNonLetter(
4017                         null, userHandle, /* parent */ false);
4018                 if (nonletter < neededNonLetter) {
4019                     Slog.w(LOG_TAG, "resetPassword: number of non-letter characters " + nonletter
4020                             + " does not meet required number of non-letter characters "
4021                             + neededNonLetter);
4022                     return false;
4023                 }
4024             }
4025         }
4026
4027         DevicePolicyData policy = getUserData(userHandle);
4028         if (policy.mPasswordOwner >= 0 && policy.mPasswordOwner != callingUid) {
4029             Slog.w(LOG_TAG, "resetPassword: already set by another uid and not entered by user");
4030             return false;
4031         }
4032
4033         boolean callerIsDeviceOwnerAdmin = isCallerDeviceOwner(callingUid);
4034         boolean doNotAskCredentialsOnBoot =
4035                 (flags & DevicePolicyManager.RESET_PASSWORD_DO_NOT_ASK_CREDENTIALS_ON_BOOT) != 0;
4036         if (callerIsDeviceOwnerAdmin && doNotAskCredentialsOnBoot) {
4037             setDoNotAskCredentialsOnBoot();
4038         }
4039
4040         // Don't do this with the lock held, because it is going to call
4041         // back in to the service.
4042         final long ident = mInjector.binderClearCallingIdentity();
4043         try {
4044             if (!TextUtils.isEmpty(password)) {
4045                 mLockPatternUtils.saveLockPassword(password, null, quality, userHandle);
4046             } else {
4047                 mLockPatternUtils.clearLock(userHandle);
4048             }
4049             boolean requireEntry = (flags & DevicePolicyManager.RESET_PASSWORD_REQUIRE_ENTRY) != 0;
4050             if (requireEntry) {
4051                 mLockPatternUtils.requireStrongAuth(STRONG_AUTH_REQUIRED_AFTER_DPM_LOCK_NOW,
4052                         UserHandle.USER_ALL);
4053             }
4054             synchronized (this) {
4055                 int newOwner = requireEntry ? callingUid : -1;
4056                 if (policy.mPasswordOwner != newOwner) {
4057                     policy.mPasswordOwner = newOwner;
4058                     saveSettingsLocked(userHandle);
4059                 }
4060             }
4061         } finally {
4062             mInjector.binderRestoreCallingIdentity(ident);
4063         }
4064
4065         return true;
4066     }
4067
4068     private boolean isLockScreenSecureUnchecked(int userId) {
4069         long ident = mInjector.binderClearCallingIdentity();
4070         try {
4071             return mLockPatternUtils.isSecure(userId);
4072         } finally {
4073             mInjector.binderRestoreCallingIdentity(ident);
4074         }
4075     }
4076
4077     private void setDoNotAskCredentialsOnBoot() {
4078         synchronized (this) {
4079             DevicePolicyData policyData = getUserData(UserHandle.USER_SYSTEM);
4080             if (!policyData.doNotAskCredentialsOnBoot) {
4081                 policyData.doNotAskCredentialsOnBoot = true;
4082                 saveSettingsLocked(UserHandle.USER_SYSTEM);
4083             }
4084         }
4085     }
4086
4087     @Override
4088     public boolean getDoNotAskCredentialsOnBoot() {
4089         mContext.enforceCallingOrSelfPermission(
4090                 android.Manifest.permission.QUERY_DO_NOT_ASK_CREDENTIALS_ON_BOOT, null);
4091         synchronized (this) {
4092             DevicePolicyData policyData = getUserData(UserHandle.USER_SYSTEM);
4093             return policyData.doNotAskCredentialsOnBoot;
4094         }
4095     }
4096
4097     @Override
4098     public void setMaximumTimeToLock(ComponentName who, long timeMs, boolean parent) {
4099         if (!mHasFeature) {
4100             return;
4101         }
4102         Preconditions.checkNotNull(who, "ComponentName is null");
4103         final int userHandle = mInjector.userHandleGetCallingUserId();
4104         synchronized (this) {
4105             ActiveAdmin ap = getActiveAdminForCallerLocked(
4106                     who, DeviceAdminInfo.USES_POLICY_FORCE_LOCK, parent);
4107             if (ap.maximumTimeToUnlock != timeMs) {
4108                 ap.maximumTimeToUnlock = timeMs;
4109                 saveSettingsLocked(userHandle);
4110                 updateMaximumTimeToLockLocked(userHandle);
4111             }
4112         }
4113     }
4114
4115     void updateMaximumTimeToLockLocked(int userHandle) {
4116         // Calculate the min timeout for all profiles - including the ones with a separate
4117         // challenge. Ideally if the timeout only affected the profile challenge we'd lock that
4118         // challenge only and keep the screen on. However there is no easy way of doing that at the
4119         // moment so we set the screen off timeout regardless of whether it affects the parent user
4120         // or the profile challenge only.
4121         long timeMs = Long.MAX_VALUE;
4122         int[] profileIds = mUserManager.getProfileIdsWithDisabled(userHandle);
4123         for (int profileId : profileIds) {
4124             DevicePolicyData policy = getUserDataUnchecked(profileId);
4125             final int N = policy.mAdminList.size();
4126             for (int i = 0; i < N; i++) {
4127                 ActiveAdmin admin = policy.mAdminList.get(i);
4128                 if (admin.maximumTimeToUnlock > 0
4129                         && timeMs > admin.maximumTimeToUnlock) {
4130                     timeMs = admin.maximumTimeToUnlock;
4131                 }
4132                 // If userInfo.id is a managed profile, we also need to look at
4133                 // the policies set on the parent.
4134                 if (admin.hasParentActiveAdmin()) {
4135                     final ActiveAdmin parentAdmin = admin.getParentActiveAdmin();
4136                     if (parentAdmin.maximumTimeToUnlock > 0
4137                             && timeMs > parentAdmin.maximumTimeToUnlock) {
4138                         timeMs = parentAdmin.maximumTimeToUnlock;
4139                     }
4140                 }
4141             }
4142         }
4143
4144         // We only store the last maximum time to lock on the parent profile. So if calling from a
4145         // managed profile, retrieve the policy for the parent.
4146         DevicePolicyData policy = getUserDataUnchecked(getProfileParentId(userHandle));
4147         if (policy.mLastMaximumTimeToLock == timeMs) {
4148             return;
4149         }
4150         policy.mLastMaximumTimeToLock = timeMs;
4151
4152         final long ident = mInjector.binderClearCallingIdentity();
4153         try {
4154             if (policy.mLastMaximumTimeToLock != Long.MAX_VALUE) {
4155                 // Make sure KEEP_SCREEN_ON is disabled, since that
4156                 // would allow bypassing of the maximum time to lock.
4157                 mInjector.settingsGlobalPutInt(Settings.Global.STAY_ON_WHILE_PLUGGED_IN, 0);
4158             }
4159
4160             mInjector.getPowerManagerInternal().setMaximumScreenOffTimeoutFromDeviceAdmin(
4161                     (int) Math.min(policy.mLastMaximumTimeToLock, Integer.MAX_VALUE));
4162         } finally {
4163             mInjector.binderRestoreCallingIdentity(ident);
4164         }
4165     }
4166
4167     @Override
4168     public long getMaximumTimeToLock(ComponentName who, int userHandle, boolean parent) {
4169         if (!mHasFeature) {
4170             return 0;
4171         }
4172         enforceFullCrossUsersPermission(userHandle);
4173         synchronized (this) {
4174             if (who != null) {
4175                 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle, parent);
4176                 return admin != null ? admin.maximumTimeToUnlock : 0;
4177             }
4178             // Return the strictest policy across all participating admins.
4179             List<ActiveAdmin> admins = getActiveAdminsForLockscreenPoliciesLocked(
4180                     userHandle, parent);
4181             return getMaximumTimeToLockPolicyFromAdmins(admins);
4182         }
4183     }
4184
4185     @Override
4186     public long getMaximumTimeToLockForUserAndProfiles(int userHandle) {
4187         if (!mHasFeature) {
4188             return 0;
4189         }
4190         enforceFullCrossUsersPermission(userHandle);
4191         synchronized (this) {
4192             // All admins for this user.
4193             ArrayList<ActiveAdmin> admins = new ArrayList<ActiveAdmin>();
4194             for (UserInfo userInfo : mUserManager.getProfiles(userHandle)) {
4195                 DevicePolicyData policy = getUserData(userInfo.id);
4196                 admins.addAll(policy.mAdminList);
4197                 // If it is a managed profile, it may have parent active admins
4198                 if (userInfo.isManagedProfile()) {
4199                     for (ActiveAdmin admin : policy.mAdminList) {
4200                         if (admin.hasParentActiveAdmin()) {
4201                             admins.add(admin.getParentActiveAdmin());
4202                         }
4203                     }
4204                 }
4205             }
4206             return getMaximumTimeToLockPolicyFromAdmins(admins);
4207         }
4208     }
4209
4210     private long getMaximumTimeToLockPolicyFromAdmins(List<ActiveAdmin> admins) {
4211         long time = 0;
4212         final int N = admins.size();
4213         for (int i = 0; i < N; i++) {
4214             ActiveAdmin admin = admins.get(i);
4215             if (time == 0) {
4216                 time = admin.maximumTimeToUnlock;
4217             } else if (admin.maximumTimeToUnlock != 0
4218                     && time > admin.maximumTimeToUnlock) {
4219                 time = admin.maximumTimeToUnlock;
4220             }
4221         }
4222         return time;
4223     }
4224
4225     @Override
4226     public void lockNow(boolean parent) {
4227         if (!mHasFeature) {
4228             return;
4229         }
4230         synchronized (this) {
4231             // This API can only be called by an active device admin,
4232             // so try to retrieve it to check that the caller is one.
4233             getActiveAdminForCallerLocked(
4234                     null, DeviceAdminInfo.USES_POLICY_FORCE_LOCK, parent);
4235
4236             int userToLock = mInjector.userHandleGetCallingUserId();
4237
4238             // Unless this is a managed profile with work challenge enabled, lock all users.
4239             if (parent || !isSeparateProfileChallengeEnabled(userToLock)) {
4240                 userToLock = UserHandle.USER_ALL;
4241             }
4242             final long ident = mInjector.binderClearCallingIdentity();
4243             try {
4244                 mLockPatternUtils.requireStrongAuth(
4245                         STRONG_AUTH_REQUIRED_AFTER_DPM_LOCK_NOW, userToLock);
4246                 if (userToLock == UserHandle.USER_ALL) {
4247                     // Power off the display
4248                     mInjector.powerManagerGoToSleep(SystemClock.uptimeMillis(),
4249                             PowerManager.GO_TO_SLEEP_REASON_DEVICE_ADMIN, 0);
4250                     mInjector.getIWindowManager().lockNow(null);
4251                 } else {
4252                     mInjector.getTrustManager().setDeviceLockedForUser(userToLock, true);
4253                 }
4254             } catch (RemoteException e) {
4255             } finally {
4256                 mInjector.binderRestoreCallingIdentity(ident);
4257             }
4258         }
4259     }
4260
4261     @Override
4262     public void enforceCanManageCaCerts(ComponentName who) {
4263         if (who == null) {
4264             if (!isCallerDelegatedCertInstaller()) {
4265                 mContext.enforceCallingOrSelfPermission(MANAGE_CA_CERTIFICATES, null);
4266             }
4267         } else {
4268             synchronized (this) {
4269                 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER);
4270             }
4271         }
4272     }
4273
4274     private void enforceCanManageInstalledKeys(ComponentName who) {
4275         if (who == null) {
4276             if (!isCallerDelegatedCertInstaller()) {
4277                 throw new SecurityException("who == null, but caller is not cert installer");
4278             }
4279         } else {
4280             synchronized (this) {
4281                 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER);
4282             }
4283         }
4284     }
4285
4286     private boolean isCallerDelegatedCertInstaller() {
4287         final int callingUid = mInjector.binderGetCallingUid();
4288         final int userHandle = UserHandle.getUserId(callingUid);
4289         synchronized (this) {
4290             final DevicePolicyData policy = getUserData(userHandle);
4291             if (policy.mDelegatedCertInstallerPackage == null) {
4292                 return false;
4293             }
4294
4295             try {
4296                 int uid = mContext.getPackageManager().getPackageUidAsUser(
4297                         policy.mDelegatedCertInstallerPackage, userHandle);
4298                 return uid == callingUid;
4299             } catch (NameNotFoundException e) {
4300                 return false;
4301             }
4302         }
4303     }
4304
4305     @Override
4306     public boolean approveCaCert(String alias, int userId, boolean approval) {
4307         enforceManageUsers();
4308         synchronized (this) {
4309             Set<String> certs = getUserData(userId).mAcceptedCaCertificates;
4310             boolean changed = (approval ? certs.add(alias) : certs.remove(alias));
4311             if (!changed) {
4312                 return false;
4313             }
4314             saveSettingsLocked(userId);
4315         }
4316         new MonitoringCertNotificationTask().execute(userId);
4317         return true;
4318     }
4319
4320     @Override
4321     public boolean isCaCertApproved(String alias, int userId) {
4322         enforceManageUsers();
4323         synchronized (this) {
4324             return getUserData(userId).mAcceptedCaCertificates.contains(alias);
4325         }
4326     }
4327
4328     private void removeCaApprovalsIfNeeded(int userId) {
4329         for (UserInfo userInfo : mUserManager.getProfiles(userId)) {
4330             boolean isSecure = mLockPatternUtils.isSecure(userInfo.id);
4331             if (userInfo.isManagedProfile()){
4332                 isSecure |= mLockPatternUtils.isSecure(getProfileParentId(userInfo.id));
4333             }
4334             if (!isSecure) {
4335                 synchronized (this) {
4336                     getUserData(userInfo.id).mAcceptedCaCertificates.clear();
4337                     saveSettingsLocked(userInfo.id);
4338                 }
4339
4340                 new MonitoringCertNotificationTask().execute(userInfo.id);
4341             }
4342         }
4343     }
4344
4345     @Override
4346     public boolean installCaCert(ComponentName admin, byte[] certBuffer) throws RemoteException {
4347         enforceCanManageCaCerts(admin);
4348
4349         byte[] pemCert;
4350         try {
4351             X509Certificate cert = parseCert(certBuffer);
4352             pemCert = Credentials.convertToPem(cert);
4353         } catch (CertificateException ce) {
4354             Log.e(LOG_TAG, "Problem converting cert", ce);
4355             return false;
4356         } catch (IOException ioe) {
4357             Log.e(LOG_TAG, "Problem reading cert", ioe);
4358             return false;
4359         }
4360
4361         final UserHandle userHandle = new UserHandle(UserHandle.getCallingUserId());
4362         final long id = mInjector.binderClearCallingIdentity();
4363         try {
4364             final KeyChainConnection keyChainConnection = KeyChain.bindAsUser(mContext, userHandle);
4365             try {
4366                 keyChainConnection.getService().installCaCertificate(pemCert);
4367                 return true;
4368             } catch (RemoteException e) {
4369                 Log.e(LOG_TAG, "installCaCertsToKeyChain(): ", e);
4370             } finally {
4371                 keyChainConnection.close();
4372             }
4373         } catch (InterruptedException e1) {
4374             Log.w(LOG_TAG, "installCaCertsToKeyChain(): ", e1);
4375             Thread.currentThread().interrupt();
4376         } finally {
4377             mInjector.binderRestoreCallingIdentity(id);
4378         }
4379         return false;
4380     }
4381
4382     private static X509Certificate parseCert(byte[] certBuffer) throws CertificateException {
4383         CertificateFactory certFactory = CertificateFactory.getInstance("X.509");
4384         return (X509Certificate) certFactory.generateCertificate(new ByteArrayInputStream(
4385                 certBuffer));
4386     }
4387
4388     @Override
4389     public void uninstallCaCerts(ComponentName admin, String[] aliases) {
4390         enforceCanManageCaCerts(admin);
4391
4392         final UserHandle userHandle = new UserHandle(UserHandle.getCallingUserId());
4393         final long id = mInjector.binderClearCallingIdentity();
4394         try {
4395             final KeyChainConnection keyChainConnection = KeyChain.bindAsUser(mContext, userHandle);
4396             try {
4397                 for (int i = 0 ; i < aliases.length; i++) {
4398                     keyChainConnection.getService().deleteCaCertificate(aliases[i]);
4399                 }
4400             } catch (RemoteException e) {
4401                 Log.e(LOG_TAG, "from CaCertUninstaller: ", e);
4402             } finally {
4403                 keyChainConnection.close();
4404             }
4405         } catch (InterruptedException ie) {
4406             Log.w(LOG_TAG, "CaCertUninstaller: ", ie);
4407             Thread.currentThread().interrupt();
4408         } finally {
4409             mInjector.binderRestoreCallingIdentity(id);
4410         }
4411     }
4412
4413     @Override
4414     public boolean installKeyPair(ComponentName who, byte[] privKey, byte[] cert, byte[] chain,
4415             String alias, boolean requestAccess) {
4416         enforceCanManageInstalledKeys(who);
4417
4418         final int callingUid = mInjector.binderGetCallingUid();
4419         final long id = mInjector.binderClearCallingIdentity();
4420         try {
4421             final KeyChainConnection keyChainConnection =
4422                     KeyChain.bindAsUser(mContext, UserHandle.getUserHandleForUid(callingUid));
4423             try {
4424                 IKeyChainService keyChain = keyChainConnection.getService();
4425                 if (!keyChain.installKeyPair(privKey, cert, chain, alias)) {
4426                     return false;
4427                 }
4428                 if (requestAccess) {
4429                     keyChain.setGrant(callingUid, alias, true);
4430                 }
4431                 return true;
4432             } catch (RemoteException e) {
4433                 Log.e(LOG_TAG, "Installing certificate", e);
4434             } finally {
4435                 keyChainConnection.close();
4436             }
4437         } catch (InterruptedException e) {
4438             Log.w(LOG_TAG, "Interrupted while installing certificate", e);
4439             Thread.currentThread().interrupt();
4440         } finally {
4441             mInjector.binderRestoreCallingIdentity(id);
4442         }
4443         return false;
4444     }
4445
4446     @Override
4447     public boolean removeKeyPair(ComponentName who, String alias) {
4448         enforceCanManageInstalledKeys(who);
4449
4450         final UserHandle userHandle = new UserHandle(UserHandle.getCallingUserId());
4451         final long id = Binder.clearCallingIdentity();
4452         try {
4453             final KeyChainConnection keyChainConnection = KeyChain.bindAsUser(mContext, userHandle);
4454             try {
4455                 IKeyChainService keyChain = keyChainConnection.getService();
4456                 return keyChain.removeKeyPair(alias);
4457             } catch (RemoteException e) {
4458                 Log.e(LOG_TAG, "Removing keypair", e);
4459             } finally {
4460                 keyChainConnection.close();
4461             }
4462         } catch (InterruptedException e) {
4463             Log.w(LOG_TAG, "Interrupted while removing keypair", e);
4464             Thread.currentThread().interrupt();
4465         } finally {
4466             Binder.restoreCallingIdentity(id);
4467         }
4468         return false;
4469     }
4470
4471     @Override
4472     public void choosePrivateKeyAlias(final int uid, final Uri uri, final String alias,
4473             final IBinder response) {
4474         // Caller UID needs to be trusted, so we restrict this method to SYSTEM_UID callers.
4475         if (!isCallerWithSystemUid()) {
4476             return;
4477         }
4478
4479         final UserHandle caller = mInjector.binderGetCallingUserHandle();
4480         // If there is a profile owner, redirect to that; otherwise query the device owner.
4481         ComponentName aliasChooser = getProfileOwner(caller.getIdentifier());
4482         if (aliasChooser == null && caller.isSystem()) {
4483             ActiveAdmin deviceOwnerAdmin = getDeviceOwnerAdminLocked();
4484             if (deviceOwnerAdmin != null) {
4485                 aliasChooser = deviceOwnerAdmin.info.getComponent();
4486             }
4487         }
4488         if (aliasChooser == null) {
4489             sendPrivateKeyAliasResponse(null, response);
4490             return;
4491         }
4492
4493         Intent intent = new Intent(DeviceAdminReceiver.ACTION_CHOOSE_PRIVATE_KEY_ALIAS);
4494         intent.setComponent(aliasChooser);
4495         intent.putExtra(DeviceAdminReceiver.EXTRA_CHOOSE_PRIVATE_KEY_SENDER_UID, uid);
4496         intent.putExtra(DeviceAdminReceiver.EXTRA_CHOOSE_PRIVATE_KEY_URI, uri);
4497         intent.putExtra(DeviceAdminReceiver.EXTRA_CHOOSE_PRIVATE_KEY_ALIAS, alias);
4498         intent.putExtra(DeviceAdminReceiver.EXTRA_CHOOSE_PRIVATE_KEY_RESPONSE, response);
4499         intent.addFlags(Intent.FLAG_RECEIVER_FOREGROUND);
4500
4501         final long id = mInjector.binderClearCallingIdentity();
4502         try {
4503             mContext.sendOrderedBroadcastAsUser(intent, caller, null, new BroadcastReceiver() {
4504                 @Override
4505                 public void onReceive(Context context, Intent intent) {
4506                     final String chosenAlias = getResultData();
4507                     sendPrivateKeyAliasResponse(chosenAlias, response);
4508                 }
4509             }, null, Activity.RESULT_OK, null, null);
4510         } finally {
4511             mInjector.binderRestoreCallingIdentity(id);
4512         }
4513     }
4514
4515     private void sendPrivateKeyAliasResponse(final String alias, final IBinder responseBinder) {
4516         final IKeyChainAliasCallback keyChainAliasResponse =
4517                 IKeyChainAliasCallback.Stub.asInterface(responseBinder);
4518         new AsyncTask<Void, Void, Void>() {
4519             @Override
4520             protected Void doInBackground(Void... unused) {
4521                 try {
4522                     keyChainAliasResponse.alias(alias);
4523                 } catch (Exception e) {
4524                     // Catch everything (not just RemoteException): caller could throw a
4525                     // RuntimeException back across processes.
4526                     Log.e(LOG_TAG, "error while responding to callback", e);
4527                 }
4528                 return null;
4529             }
4530         }.execute();
4531     }
4532
4533     @Override
4534     public void setCertInstallerPackage(ComponentName who, String installerPackage)
4535             throws SecurityException {
4536         int userHandle = UserHandle.getCallingUserId();
4537         synchronized (this) {
4538             getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER);
4539             if (getTargetSdk(who.getPackageName(), userHandle) >= Build.VERSION_CODES.N) {
4540                 if (installerPackage != null &&
4541                         !isPackageInstalledForUser(installerPackage, userHandle)) {
4542                     throw new IllegalArgumentException("Package " + installerPackage
4543                             + " is not installed on the current user");
4544                 }
4545             }
4546             DevicePolicyData policy = getUserData(userHandle);
4547             policy.mDelegatedCertInstallerPackage = installerPackage;
4548             saveSettingsLocked(userHandle);
4549         }
4550     }
4551
4552     @Override
4553     public String getCertInstallerPackage(ComponentName who) throws SecurityException {
4554         int userHandle = UserHandle.getCallingUserId();
4555         synchronized (this) {
4556             getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER);
4557             DevicePolicyData policy = getUserData(userHandle);
4558             return policy.mDelegatedCertInstallerPackage;
4559         }
4560     }
4561
4562     /**
4563      * @return {@code true} if the package is installed and set as always-on, {@code false} if it is
4564      * not installed and therefore not available.
4565      *
4566      * @throws SecurityException if the caller is not a profile or device owner.
4567      * @throws UnsupportedOperationException if the package does not support being set as always-on.
4568      */
4569     @Override
4570     public boolean setAlwaysOnVpnPackage(ComponentName admin, String vpnPackage, boolean lockdown)
4571             throws SecurityException {
4572         synchronized (this) {
4573             getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER);
4574         }
4575
4576         final int userId = mInjector.userHandleGetCallingUserId();
4577         final long token = mInjector.binderClearCallingIdentity();
4578         try {
4579             if (vpnPackage != null && !isPackageInstalledForUser(vpnPackage, userId)) {
4580                 return false;
4581             }
4582             ConnectivityManager connectivityManager = (ConnectivityManager)
4583                     mContext.getSystemService(Context.CONNECTIVITY_SERVICE);
4584             if (!connectivityManager.setAlwaysOnVpnPackageForUser(userId, vpnPackage, lockdown)) {
4585                 throw new UnsupportedOperationException();
4586             }
4587         } finally {
4588             mInjector.binderRestoreCallingIdentity(token);
4589         }
4590         return true;
4591     }
4592
4593     @Override
4594     public String getAlwaysOnVpnPackage(ComponentName admin)
4595             throws SecurityException {
4596         synchronized (this) {
4597             getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER);
4598         }
4599
4600         final int userId = mInjector.userHandleGetCallingUserId();
4601         final long token = mInjector.binderClearCallingIdentity();
4602         try{
4603             ConnectivityManager connectivityManager = (ConnectivityManager)
4604                     mContext.getSystemService(Context.CONNECTIVITY_SERVICE);
4605             return connectivityManager.getAlwaysOnVpnPackageForUser(userId);
4606         } finally {
4607             mInjector.binderRestoreCallingIdentity(token);
4608         }
4609     }
4610
4611     private void wipeDataLocked(boolean wipeExtRequested, String reason) {
4612         if (wipeExtRequested) {
4613             StorageManager sm = (StorageManager) mContext.getSystemService(
4614                     Context.STORAGE_SERVICE);
4615             sm.wipeAdoptableDisks();
4616         }
4617         try {
4618             RecoverySystem.rebootWipeUserData(mContext, reason);
4619         } catch (IOException | SecurityException e) {
4620             Slog.w(LOG_TAG, "Failed requesting data wipe", e);
4621         }
4622     }
4623
4624     @Override
4625     public void wipeData(int flags) {
4626         if (!mHasFeature) {
4627             return;
4628         }
4629         final int userHandle = mInjector.userHandleGetCallingUserId();
4630         enforceFullCrossUsersPermission(userHandle);
4631         synchronized (this) {
4632             // This API can only be called by an active device admin,
4633             // so try to retrieve it to check that the caller is one.
4634             final ActiveAdmin admin = getActiveAdminForCallerLocked(null,
4635                     DeviceAdminInfo.USES_POLICY_WIPE_DATA);
4636
4637             final String source = admin.info.getComponent().flattenToShortString();
4638
4639             long ident = mInjector.binderClearCallingIdentity();
4640             try {
4641                 if ((flags & WIPE_RESET_PROTECTION_DATA) != 0) {
4642                     if (!isDeviceOwner(admin.info.getComponent(), userHandle)) {
4643                         throw new SecurityException(
4644                                "Only device owner admins can set WIPE_RESET_PROTECTION_DATA");
4645                     }
4646                     PersistentDataBlockManager manager = (PersistentDataBlockManager)
4647                             mContext.getSystemService(Context.PERSISTENT_DATA_BLOCK_SERVICE);
4648                     if (manager != null) {
4649                         manager.wipe();
4650                     }
4651                 }
4652                 boolean wipeExtRequested = (flags & WIPE_EXTERNAL_STORAGE) != 0;
4653                 wipeDeviceOrUserLocked(wipeExtRequested, userHandle,
4654                         "DevicePolicyManager.wipeData() from " + source);
4655             } finally {
4656                 mInjector.binderRestoreCallingIdentity(ident);
4657             }
4658         }
4659     }
4660
4661     private void wipeDeviceOrUserLocked(boolean wipeExtRequested, final int userHandle, String reason) {
4662         if (userHandle == UserHandle.USER_SYSTEM) {
4663             wipeDataLocked(wipeExtRequested, reason);
4664         } else {
4665             mHandler.post(new Runnable() {
4666                 @Override
4667                 public void run() {
4668                     try {
4669                         IActivityManager am = mInjector.getIActivityManager();
4670                         if (am.getCurrentUser().id == userHandle) {
4671                             am.switchUser(UserHandle.USER_SYSTEM);
4672                         }
4673
4674                         boolean isManagedProfile = isManagedProfile(userHandle);
4675                         if (!mUserManager.removeUser(userHandle)) {
4676                             Slog.w(LOG_TAG, "Couldn't remove user " + userHandle);
4677                         } else if (isManagedProfile) {
4678                             sendWipeProfileNotification();
4679                         }
4680                     } catch (RemoteException re) {
4681                         // Shouldn't happen
4682                     }
4683                 }
4684             });
4685         }
4686     }
4687
4688     private void sendWipeProfileNotification() {
4689         String contentText = mContext.getString(R.string.work_profile_deleted_description_dpm_wipe);
4690         Notification notification = new Notification.Builder(mContext)
4691                 .setSmallIcon(android.R.drawable.stat_sys_warning)
4692                 .setContentTitle(mContext.getString(R.string.work_profile_deleted))
4693                 .setContentText(contentText)
4694                 .setColor(mContext.getColor(R.color.system_notification_accent_color))
4695                 .setStyle(new Notification.BigTextStyle().bigText(contentText))
4696                 .build();
4697         mInjector.getNotificationManager().notify(PROFILE_WIPED_NOTIFICATION_ID, notification);
4698     }
4699
4700     private void clearWipeProfileNotification() {
4701         mInjector.getNotificationManager().cancel(PROFILE_WIPED_NOTIFICATION_ID);
4702     }
4703
4704     @Override
4705     public void getRemoveWarning(ComponentName comp, final RemoteCallback result, int userHandle) {
4706         if (!mHasFeature) {
4707             return;
4708         }
4709         enforceFullCrossUsersPermission(userHandle);
4710         mContext.enforceCallingOrSelfPermission(
4711                 android.Manifest.permission.BIND_DEVICE_ADMIN, null);
4712
4713         synchronized (this) {
4714             ActiveAdmin admin = getActiveAdminUncheckedLocked(comp, userHandle);
4715             if (admin == null) {
4716                 result.sendResult(null);
4717                 return;
4718             }
4719             Intent intent = new Intent(DeviceAdminReceiver.ACTION_DEVICE_ADMIN_DISABLE_REQUESTED);
4720             intent.setFlags(Intent.FLAG_RECEIVER_FOREGROUND);
4721             intent.setComponent(admin.info.getComponent());
4722             mContext.sendOrderedBroadcastAsUser(intent, new UserHandle(userHandle),
4723                     null, new BroadcastReceiver() {
4724                 @Override
4725                 public void onReceive(Context context, Intent intent) {
4726                     result.sendResult(getResultExtras(false));
4727                 }
4728             }, null, Activity.RESULT_OK, null, null);
4729         }
4730     }
4731
4732     @Override
4733     public void setActivePasswordState(int quality, int length, int letters, int uppercase,
4734             int lowercase, int numbers, int symbols, int nonletter, int userHandle) {
4735         if (!mHasFeature) {
4736             return;
4737         }
4738         enforceFullCrossUsersPermission(userHandle);
4739
4740         // Managed Profile password can only be changed when it has a separate challenge.
4741         if (!isSeparateProfileChallengeEnabled(userHandle)) {
4742             enforceNotManagedProfile(userHandle, "set the active password");
4743         }
4744
4745         mContext.enforceCallingOrSelfPermission(
4746                 android.Manifest.permission.BIND_DEVICE_ADMIN, null);
4747         validateQualityConstant(quality);
4748
4749         DevicePolicyData policy = getUserData(userHandle);
4750
4751         long ident = mInjector.binderClearCallingIdentity();
4752         try {
4753             synchronized (this) {
4754                 policy.mActivePasswordQuality = quality;
4755                 policy.mActivePasswordLength = length;
4756                 policy.mActivePasswordLetters = letters;
4757                 policy.mActivePasswordLowerCase = lowercase;
4758                 policy.mActivePasswordUpperCase = uppercase;
4759                 policy.mActivePasswordNumeric = numbers;
4760                 policy.mActivePasswordSymbols = symbols;
4761                 policy.mActivePasswordNonLetter = nonletter;
4762                 policy.mFailedPasswordAttempts = 0;
4763                 saveSettingsLocked(userHandle);
4764                 updatePasswordExpirationsLocked(userHandle);
4765                 setExpirationAlarmCheckLocked(mContext, userHandle, /* parent */ false);
4766
4767                 // Send a broadcast to each profile using this password as its primary unlock.
4768                 sendAdminCommandForLockscreenPoliciesLocked(
4769                         DeviceAdminReceiver.ACTION_PASSWORD_CHANGED,
4770                         DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD, userHandle);
4771             }
4772             removeCaApprovalsIfNeeded(userHandle);
4773         } finally {
4774             mInjector.binderRestoreCallingIdentity(ident);
4775         }
4776     }
4777
4778     /**
4779      * Called any time the device password is updated. Resets all password expiration clocks.
4780      */
4781     private void updatePasswordExpirationsLocked(int userHandle) {
4782         ArraySet<Integer> affectedUserIds = new ArraySet<Integer>();
4783         List<ActiveAdmin> admins = getActiveAdminsForLockscreenPoliciesLocked(
4784                 userHandle, /* parent */ false);
4785         final int N = admins.size();
4786         for (int i = 0; i < N; i++) {
4787             ActiveAdmin admin = admins.get(i);
4788             if (admin.info.usesPolicy(DeviceAdminInfo.USES_POLICY_EXPIRE_PASSWORD)) {
4789                 affectedUserIds.add(admin.getUserHandle().getIdentifier());
4790                 long timeout = admin.passwordExpirationTimeout;
4791                 long expiration = timeout > 0L ? (timeout + System.currentTimeMillis()) : 0L;
4792                 admin.passwordExpirationDate = expiration;
4793             }
4794         }
4795         for (int affectedUserId : affectedUserIds) {
4796             saveSettingsLocked(affectedUserId);
4797         }
4798     }
4799
4800     @Override
4801     public void reportFailedPasswordAttempt(int userHandle) {
4802         enforceFullCrossUsersPermission(userHandle);
4803         if (!isSeparateProfileChallengeEnabled(userHandle)) {
4804             enforceNotManagedProfile(userHandle,
4805                     "report failed password attempt if separate profile challenge is not in place");
4806         }
4807         mContext.enforceCallingOrSelfPermission(
4808                 android.Manifest.permission.BIND_DEVICE_ADMIN, null);
4809
4810         final long ident = mInjector.binderClearCallingIdentity();
4811         try {
4812             boolean wipeData = false;
4813             int identifier = 0;
4814             synchronized (this) {
4815                 DevicePolicyData policy = getUserData(userHandle);
4816                 policy.mFailedPasswordAttempts++;
4817                 saveSettingsLocked(userHandle);
4818                 if (mHasFeature) {
4819                     ActiveAdmin strictestAdmin = getAdminWithMinimumFailedPasswordsForWipeLocked(
4820                             userHandle, /* parent */ false);
4821                     int max = strictestAdmin != null
4822                             ? strictestAdmin.maximumFailedPasswordsForWipe : 0;
4823                     if (max > 0 && policy.mFailedPasswordAttempts >= max) {
4824                         // Wipe the user/profile associated with the policy that was violated. This
4825                         // is not necessarily calling user: if the policy that fired was from a
4826                         // managed profile rather than the main user profile, we wipe former only.
4827                         wipeData = true;
4828                         identifier = strictestAdmin.getUserHandle().getIdentifier();
4829                     }
4830
4831                     sendAdminCommandForLockscreenPoliciesLocked(
4832                             DeviceAdminReceiver.ACTION_PASSWORD_FAILED,
4833                             DeviceAdminInfo.USES_POLICY_WATCH_LOGIN, userHandle);
4834                 }
4835             }
4836             if (wipeData) {
4837                 // Call without holding lock.
4838                 wipeDeviceOrUserLocked(false, identifier,
4839                         "reportFailedPasswordAttempt()");
4840             }
4841         } finally {
4842             mInjector.binderRestoreCallingIdentity(ident);
4843         }
4844
4845         if (mInjector.securityLogIsLoggingEnabled()) {
4846             SecurityLog.writeEvent(SecurityLog.TAG_KEYGUARD_DISMISS_AUTH_ATTEMPT, /*result*/ 0,
4847                     /*method strength*/ 1);
4848         }
4849     }
4850
4851     @Override
4852     public void reportSuccessfulPasswordAttempt(int userHandle) {
4853         enforceFullCrossUsersPermission(userHandle);
4854         mContext.enforceCallingOrSelfPermission(
4855                 android.Manifest.permission.BIND_DEVICE_ADMIN, null);
4856
4857         synchronized (this) {
4858             DevicePolicyData policy = getUserData(userHandle);
4859             if (policy.mFailedPasswordAttempts != 0 || policy.mPasswordOwner >= 0) {
4860                 long ident = mInjector.binderClearCallingIdentity();
4861                 try {
4862                     policy.mFailedPasswordAttempts = 0;
4863                     policy.mPasswordOwner = -1;
4864                     saveSettingsLocked(userHandle);
4865                     if (mHasFeature) {
4866                         sendAdminCommandForLockscreenPoliciesLocked(
4867                                 DeviceAdminReceiver.ACTION_PASSWORD_SUCCEEDED,
4868                                 DeviceAdminInfo.USES_POLICY_WATCH_LOGIN, userHandle);
4869                     }
4870                 } finally {
4871                     mInjector.binderRestoreCallingIdentity(ident);
4872                 }
4873             }
4874         }
4875
4876         if (mInjector.securityLogIsLoggingEnabled()) {
4877             SecurityLog.writeEvent(SecurityLog.TAG_KEYGUARD_DISMISS_AUTH_ATTEMPT, /*result*/ 1,
4878                     /*method strength*/ 1);
4879         }
4880     }
4881
4882     @Override
4883     public void reportFailedFingerprintAttempt(int userHandle) {
4884         enforceFullCrossUsersPermission(userHandle);
4885         mContext.enforceCallingOrSelfPermission(
4886                 android.Manifest.permission.BIND_DEVICE_ADMIN, null);
4887         if (mInjector.securityLogIsLoggingEnabled()) {
4888             SecurityLog.writeEvent(SecurityLog.TAG_KEYGUARD_DISMISS_AUTH_ATTEMPT, /*result*/ 0,
4889                     /*method strength*/ 0);
4890         }
4891     }
4892
4893     @Override
4894     public void reportSuccessfulFingerprintAttempt(int userHandle) {
4895         enforceFullCrossUsersPermission(userHandle);
4896         mContext.enforceCallingOrSelfPermission(
4897                 android.Manifest.permission.BIND_DEVICE_ADMIN, null);
4898         if (mInjector.securityLogIsLoggingEnabled()) {
4899             SecurityLog.writeEvent(SecurityLog.TAG_KEYGUARD_DISMISS_AUTH_ATTEMPT, /*result*/ 1,
4900                     /*method strength*/ 0);
4901         }
4902     }
4903
4904     @Override
4905     public void reportKeyguardDismissed(int userHandle) {
4906         enforceFullCrossUsersPermission(userHandle);
4907         mContext.enforceCallingOrSelfPermission(
4908                 android.Manifest.permission.BIND_DEVICE_ADMIN, null);
4909
4910         if (mInjector.securityLogIsLoggingEnabled()) {
4911             SecurityLog.writeEvent(SecurityLog.TAG_KEYGUARD_DISMISSED);
4912         }
4913     }
4914
4915     @Override
4916     public void reportKeyguardSecured(int userHandle) {
4917         enforceFullCrossUsersPermission(userHandle);
4918         mContext.enforceCallingOrSelfPermission(
4919                 android.Manifest.permission.BIND_DEVICE_ADMIN, null);
4920
4921         if (mInjector.securityLogIsLoggingEnabled()) {
4922             SecurityLog.writeEvent(SecurityLog.TAG_KEYGUARD_SECURED);
4923         }
4924     }
4925
4926     @Override
4927     public ComponentName setGlobalProxy(ComponentName who, String proxySpec,
4928             String exclusionList) {
4929         if (!mHasFeature) {
4930             return null;
4931         }
4932         synchronized(this) {
4933             Preconditions.checkNotNull(who, "ComponentName is null");
4934
4935             // Only check if system user has set global proxy. We don't allow other users to set it.
4936             DevicePolicyData policy = getUserData(UserHandle.USER_SYSTEM);
4937             ActiveAdmin admin = getActiveAdminForCallerLocked(who,
4938                     DeviceAdminInfo.USES_POLICY_SETS_GLOBAL_PROXY);
4939
4940             // Scan through active admins and find if anyone has already
4941             // set the global proxy.
4942             Set<ComponentName> compSet = policy.mAdminMap.keySet();
4943             for (ComponentName component : compSet) {
4944                 ActiveAdmin ap = policy.mAdminMap.get(component);
4945                 if ((ap.specifiesGlobalProxy) && (!component.equals(who))) {
4946                     // Another admin already sets the global proxy
4947                     // Return it to the caller.
4948                     return component;
4949                 }
4950             }
4951
4952             // If the user is not system, don't set the global proxy. Fail silently.
4953             if (UserHandle.getCallingUserId() != UserHandle.USER_SYSTEM) {
4954                 Slog.w(LOG_TAG, "Only the owner is allowed to set the global proxy. User "
4955                         + UserHandle.getCallingUserId() + " is not permitted.");
4956                 return null;
4957             }
4958             if (proxySpec == null) {
4959                 admin.specifiesGlobalProxy = false;
4960                 admin.globalProxySpec = null;
4961                 admin.globalProxyExclusionList = null;
4962             } else {
4963
4964                 admin.specifiesGlobalProxy = true;
4965                 admin.globalProxySpec = proxySpec;
4966                 admin.globalProxyExclusionList = exclusionList;
4967             }
4968
4969             // Reset the global proxy accordingly
4970             // Do this using system permissions, as apps cannot write to secure settings
4971             long origId = mInjector.binderClearCallingIdentity();
4972             try {
4973                 resetGlobalProxyLocked(policy);
4974             } finally {
4975                 mInjector.binderRestoreCallingIdentity(origId);
4976             }
4977             return null;
4978         }
4979     }
4980
4981     @Override
4982     public ComponentName getGlobalProxyAdmin(int userHandle) {
4983         if (!mHasFeature) {
4984             return null;
4985         }
4986         enforceFullCrossUsersPermission(userHandle);
4987         synchronized(this) {
4988             DevicePolicyData policy = getUserData(UserHandle.USER_SYSTEM);
4989             // Scan through active admins and find if anyone has already
4990             // set the global proxy.
4991             final int N = policy.mAdminList.size();
4992             for (int i = 0; i < N; i++) {
4993                 ActiveAdmin ap = policy.mAdminList.get(i);
4994                 if (ap.specifiesGlobalProxy) {
4995                     // Device admin sets the global proxy
4996                     // Return it to the caller.
4997                     return ap.info.getComponent();
4998                 }
4999             }
5000         }
5001         // No device admin sets the global proxy.
5002         return null;
5003     }
5004
5005     @Override
5006     public void setRecommendedGlobalProxy(ComponentName who, ProxyInfo proxyInfo) {
5007         synchronized (this) {
5008             getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER);
5009         }
5010         long token = mInjector.binderClearCallingIdentity();
5011         try {
5012             ConnectivityManager connectivityManager = (ConnectivityManager)
5013                     mContext.getSystemService(Context.CONNECTIVITY_SERVICE);
5014             connectivityManager.setGlobalProxy(proxyInfo);
5015         } finally {
5016             mInjector.binderRestoreCallingIdentity(token);
5017         }
5018     }
5019
5020     private void resetGlobalProxyLocked(DevicePolicyData policy) {
5021         final int N = policy.mAdminList.size();
5022         for (int i = 0; i < N; i++) {
5023             ActiveAdmin ap = policy.mAdminList.get(i);
5024             if (ap.specifiesGlobalProxy) {
5025                 saveGlobalProxyLocked(ap.globalProxySpec, ap.globalProxyExclusionList);
5026                 return;
5027             }
5028         }
5029         // No device admins defining global proxies - reset global proxy settings to none
5030         saveGlobalProxyLocked(null, null);
5031     }
5032
5033     private void saveGlobalProxyLocked(String proxySpec, String exclusionList) {
5034         if (exclusionList == null) {
5035             exclusionList = "";
5036         }
5037         if (proxySpec == null) {
5038             proxySpec = "";
5039         }
5040         // Remove white spaces
5041         proxySpec = proxySpec.trim();
5042         String data[] = proxySpec.split(":");
5043         int proxyPort = 8080;
5044         if (data.length > 1) {
5045             try {
5046                 proxyPort = Integer.parseInt(data[1]);
5047             } catch (NumberFormatException e) {}
5048         }
5049         exclusionList = exclusionList.trim();
5050
5051         ProxyInfo proxyProperties = new ProxyInfo(data[0], proxyPort, exclusionList);
5052         if (!proxyProperties.isValid()) {
5053             Slog.e(LOG_TAG, "Invalid proxy properties, ignoring: " + proxyProperties.toString());
5054             return;
5055         }
5056         mInjector.settingsGlobalPutString(Settings.Global.GLOBAL_HTTP_PROXY_HOST, data[0]);
5057         mInjector.settingsGlobalPutInt(Settings.Global.GLOBAL_HTTP_PROXY_PORT, proxyPort);
5058         mInjector.settingsGlobalPutString(Settings.Global.GLOBAL_HTTP_PROXY_EXCLUSION_LIST,
5059                 exclusionList);
5060     }
5061
5062     /**
5063      * Set the storage encryption request for a single admin.  Returns the new total request
5064      * status (for all admins).
5065      */
5066     @Override
5067     public int setStorageEncryption(ComponentName who, boolean encrypt) {
5068         if (!mHasFeature) {
5069             return DevicePolicyManager.ENCRYPTION_STATUS_UNSUPPORTED;
5070         }
5071         Preconditions.checkNotNull(who, "ComponentName is null");
5072         final int userHandle = UserHandle.getCallingUserId();
5073         synchronized (this) {
5074             // Check for permissions
5075             // Only system user can set storage encryption
5076             if (userHandle != UserHandle.USER_SYSTEM) {
5077                 Slog.w(LOG_TAG, "Only owner/system user is allowed to set storage encryption. User "
5078                         + UserHandle.getCallingUserId() + " is not permitted.");
5079                 return 0;
5080             }
5081
5082             ActiveAdmin ap = getActiveAdminForCallerLocked(who,
5083                     DeviceAdminInfo.USES_ENCRYPTED_STORAGE);
5084
5085             // Quick exit:  If the filesystem does not support encryption, we can exit early.
5086             if (!isEncryptionSupported()) {
5087                 return DevicePolicyManager.ENCRYPTION_STATUS_UNSUPPORTED;
5088             }
5089
5090             // (1) Record the value for the admin so it's sticky
5091             if (ap.encryptionRequested != encrypt) {
5092                 ap.encryptionRequested = encrypt;
5093                 saveSettingsLocked(userHandle);
5094             }
5095
5096             DevicePolicyData policy = getUserData(UserHandle.USER_SYSTEM);
5097             // (2) Compute "max" for all admins
5098             boolean newRequested = false;
5099             final int N = policy.mAdminList.size();
5100             for (int i = 0; i < N; i++) {
5101                 newRequested |= policy.mAdminList.get(i).encryptionRequested;
5102             }
5103
5104             // Notify OS of new request
5105             setEncryptionRequested(newRequested);
5106
5107             // Return the new global request status
5108             return newRequested
5109                     ? DevicePolicyManager.ENCRYPTION_STATUS_ACTIVE
5110                     : DevicePolicyManager.ENCRYPTION_STATUS_INACTIVE;
5111         }
5112     }
5113
5114     /**
5115      * Get the current storage encryption request status for a given admin, or aggregate of all
5116      * active admins.
5117      */
5118     @Override
5119     public boolean getStorageEncryption(ComponentName who, int userHandle) {
5120         if (!mHasFeature) {
5121             return false;
5122         }
5123         enforceFullCrossUsersPermission(userHandle);
5124         synchronized (this) {
5125             // Check for permissions if a particular caller is specified
5126             if (who != null) {
5127                 // When checking for a single caller, status is based on caller's request
5128                 ActiveAdmin ap = getActiveAdminUncheckedLocked(who, userHandle);
5129                 return ap != null ? ap.encryptionRequested : false;
5130             }
5131
5132             // If no particular caller is specified, return the aggregate set of requests.
5133             // This is short circuited by returning true on the first hit.
5134             DevicePolicyData policy = getUserData(userHandle);
5135             final int N = policy.mAdminList.size();
5136             for (int i = 0; i < N; i++) {
5137                 if (policy.mAdminList.get(i).encryptionRequested) {
5138                     return true;
5139                 }
5140             }
5141             return false;
5142         }
5143     }
5144
5145     /**
5146      * Get the current encryption status of the device.
5147      */
5148     @Override
5149     public int getStorageEncryptionStatus(@Nullable String callerPackage, int userHandle) {
5150         if (!mHasFeature) {
5151             // Ok to return current status.
5152         }
5153         enforceFullCrossUsersPermission(userHandle);
5154
5155         // It's not critical here, but let's make sure the package name is correct, in case
5156         // we start using it for different purposes.
5157         ensureCallerPackage(callerPackage);
5158
5159         final ApplicationInfo ai;
5160         try {
5161             ai = mIPackageManager.getApplicationInfo(callerPackage, 0, userHandle);
5162         } catch (RemoteException e) {
5163             throw new SecurityException(e);
5164         }
5165
5166         boolean legacyApp = false;
5167         if (ai.targetSdkVersion <= Build.VERSION_CODES.M) {
5168             legacyApp = true;
5169         }
5170
5171         final int rawStatus = getEncryptionStatus();
5172         if ((rawStatus == DevicePolicyManager.ENCRYPTION_STATUS_ACTIVE_PER_USER) && legacyApp) {
5173             return DevicePolicyManager.ENCRYPTION_STATUS_ACTIVE;
5174         }
5175         return rawStatus;
5176     }
5177
5178     /**
5179      * Hook to low-levels:  This should report if the filesystem supports encrypted storage.
5180      */
5181     private boolean isEncryptionSupported() {
5182         // Note, this can be implemented as
5183         //   return getEncryptionStatus() != DevicePolicyManager.ENCRYPTION_STATUS_UNSUPPORTED;
5184         // But is provided as a separate internal method if there's a faster way to do a
5185         // simple check for supported-or-not.
5186         return getEncryptionStatus() != DevicePolicyManager.ENCRYPTION_STATUS_UNSUPPORTED;
5187     }
5188
5189     /**
5190      * Hook to low-levels:  Reporting the current status of encryption.
5191      * @return A value such as {@link DevicePolicyManager#ENCRYPTION_STATUS_UNSUPPORTED},
5192      * {@link DevicePolicyManager#ENCRYPTION_STATUS_INACTIVE},
5193      * {@link DevicePolicyManager#ENCRYPTION_STATUS_ACTIVE_DEFAULT_KEY},
5194      * {@link DevicePolicyManager#ENCRYPTION_STATUS_ACTIVE_PER_USER}, or
5195      * {@link DevicePolicyManager#ENCRYPTION_STATUS_ACTIVE}.
5196      */
5197     private int getEncryptionStatus() {
5198         if (mInjector.storageManagerIsFileBasedEncryptionEnabled()) {
5199             return DevicePolicyManager.ENCRYPTION_STATUS_ACTIVE_PER_USER;
5200         } else if (mInjector.storageManagerIsNonDefaultBlockEncrypted()) {
5201             return DevicePolicyManager.ENCRYPTION_STATUS_ACTIVE;
5202         } else if (mInjector.storageManagerIsEncrypted()) {
5203             return DevicePolicyManager.ENCRYPTION_STATUS_ACTIVE_DEFAULT_KEY;
5204         } else if (mInjector.storageManagerIsEncryptable()) {
5205             return DevicePolicyManager.ENCRYPTION_STATUS_INACTIVE;
5206         } else {
5207             return DevicePolicyManager.ENCRYPTION_STATUS_UNSUPPORTED;
5208         }
5209     }
5210
5211     /**
5212      * Hook to low-levels:  If needed, record the new admin setting for encryption.
5213      */
5214     private void setEncryptionRequested(boolean encrypt) {
5215     }
5216
5217     /**
5218      * Set whether the screen capture is disabled for the user managed by the specified admin.
5219      */
5220     @Override
5221     public void setScreenCaptureDisabled(ComponentName who, boolean disabled) {
5222         if (!mHasFeature) {
5223             return;
5224         }
5225         Preconditions.checkNotNull(who, "ComponentName is null");
5226         final int userHandle = UserHandle.getCallingUserId();
5227         synchronized (this) {
5228             ActiveAdmin ap = getActiveAdminForCallerLocked(who,
5229                     DeviceAdminInfo.USES_POLICY_PROFILE_OWNER);
5230             if (ap.disableScreenCapture != disabled) {
5231                 ap.disableScreenCapture = disabled;
5232                 saveSettingsLocked(userHandle);
5233                 updateScreenCaptureDisabledInWindowManager(userHandle, disabled);
5234             }
5235         }
5236     }
5237
5238     /**
5239      * Returns whether or not screen capture is disabled for a given admin, or disabled for any
5240      * active admin (if given admin is null).
5241      */
5242     @Override
5243     public boolean getScreenCaptureDisabled(ComponentName who, int userHandle) {
5244         if (!mHasFeature) {
5245             return false;
5246         }
5247         synchronized (this) {
5248             if (who != null) {
5249                 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle);
5250                 return (admin != null) ? admin.disableScreenCapture : false;
5251             }
5252
5253             DevicePolicyData policy = getUserData(userHandle);
5254             final int N = policy.mAdminList.size();
5255             for (int i = 0; i < N; i++) {
5256                 ActiveAdmin admin = policy.mAdminList.get(i);
5257                 if (admin.disableScreenCapture) {
5258                     return true;
5259                 }
5260             }
5261             return false;
5262         }
5263     }
5264
5265     private void updateScreenCaptureDisabledInWindowManager(final int userHandle,
5266             final boolean disabled) {
5267         mHandler.post(new Runnable() {
5268             @Override
5269             public void run() {
5270                 try {
5271                     mInjector.getIWindowManager().setScreenCaptureDisabled(userHandle, disabled);
5272                 } catch (RemoteException e) {
5273                     Log.w(LOG_TAG, "Unable to notify WindowManager.", e);
5274                 }
5275             }
5276         });
5277     }
5278
5279     /**
5280      * Set whether auto time is required by the specified admin (must be device owner).
5281      */
5282     @Override
5283     public void setAutoTimeRequired(ComponentName who, boolean required) {
5284         if (!mHasFeature) {
5285             return;
5286         }
5287         Preconditions.checkNotNull(who, "ComponentName is null");
5288         final int userHandle = UserHandle.getCallingUserId();
5289         synchronized (this) {
5290             ActiveAdmin admin = getActiveAdminForCallerLocked(who,
5291                     DeviceAdminInfo.USES_POLICY_DEVICE_OWNER);
5292             if (admin.requireAutoTime != required) {
5293                 admin.requireAutoTime = required;
5294                 saveSettingsLocked(userHandle);
5295             }
5296         }
5297
5298         // Turn AUTO_TIME on in settings if it is required
5299         if (required) {
5300             long ident = mInjector.binderClearCallingIdentity();
5301             try {
5302                 mInjector.settingsGlobalPutInt(Settings.Global.AUTO_TIME, 1 /* AUTO_TIME on */);
5303             } finally {
5304                 mInjector.binderRestoreCallingIdentity(ident);
5305             }
5306         }
5307     }
5308
5309     /**
5310      * Returns whether or not auto time is required by the device owner.
5311      */
5312     @Override
5313     public boolean getAutoTimeRequired() {
5314         if (!mHasFeature) {
5315             return false;
5316         }
5317         synchronized (this) {
5318             ActiveAdmin deviceOwner = getDeviceOwnerAdminLocked();
5319             return (deviceOwner != null) ? deviceOwner.requireAutoTime : false;
5320         }
5321     }
5322
5323     @Override
5324     public void setForceEphemeralUsers(ComponentName who, boolean forceEphemeralUsers) {
5325         if (!mHasFeature) {
5326             return;
5327         }
5328         Preconditions.checkNotNull(who, "ComponentName is null");
5329         // Allow setting this policy to true only if there is a split system user.
5330         if (forceEphemeralUsers && !mInjector.userManagerIsSplitSystemUser()) {
5331             throw new UnsupportedOperationException(
5332                     "Cannot force ephemeral users on systems without split system user.");
5333         }
5334         boolean removeAllUsers = false;
5335         synchronized (this) {
5336             final ActiveAdmin deviceOwner =
5337                     getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER);
5338             if (deviceOwner.forceEphemeralUsers != forceEphemeralUsers) {
5339                 deviceOwner.forceEphemeralUsers = forceEphemeralUsers;
5340                 saveSettingsLocked(mInjector.userHandleGetCallingUserId());
5341                 mUserManagerInternal.setForceEphemeralUsers(forceEphemeralUsers);
5342                 removeAllUsers = forceEphemeralUsers;
5343             }
5344         }
5345         if (removeAllUsers) {
5346             long identitity = mInjector.binderClearCallingIdentity();
5347             try {
5348                 mUserManagerInternal.removeAllUsers();
5349             } finally {
5350                 mInjector.binderRestoreCallingIdentity(identitity);
5351             }
5352         }
5353     }
5354
5355     @Override
5356     public boolean getForceEphemeralUsers(ComponentName who) {
5357         if (!mHasFeature) {
5358             return false;
5359         }
5360         Preconditions.checkNotNull(who, "ComponentName is null");
5361         synchronized (this) {
5362             final ActiveAdmin deviceOwner =
5363                     getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER);
5364             return deviceOwner.forceEphemeralUsers;
5365         }
5366     }
5367
5368     private boolean isDeviceOwnerManagedSingleUserDevice() {
5369         synchronized (this) {
5370             if (!mOwners.hasDeviceOwner()) {
5371                 return false;
5372             }
5373         }
5374         final long callingIdentity = mInjector.binderClearCallingIdentity();
5375         try {
5376             if (mInjector.userManagerIsSplitSystemUser()) {
5377                 // In split system user mode, only allow the case where the device owner is managing
5378                 // the only non-system user of the device
5379                 return (mUserManager.getUserCount() == 2
5380                         && mOwners.getDeviceOwnerUserId() != UserHandle.USER_SYSTEM);
5381             } else  {
5382                 return mUserManager.getUserCount() == 1;
5383             }
5384         } finally {
5385             mInjector.binderRestoreCallingIdentity(callingIdentity);
5386         }
5387     }
5388
5389     private void ensureDeviceOwnerManagingSingleUser(ComponentName who) throws SecurityException {
5390         synchronized (this) {
5391             getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER);
5392         }
5393         if (!isDeviceOwnerManagedSingleUserDevice()) {
5394             throw new SecurityException(
5395                     "There should only be one user, managed by Device Owner");
5396         }
5397     }
5398
5399     @Override
5400     public boolean requestBugreport(ComponentName who) {
5401         if (!mHasFeature) {
5402             return false;
5403         }
5404         Preconditions.checkNotNull(who, "ComponentName is null");
5405         ensureDeviceOwnerManagingSingleUser(who);
5406
5407         if (mRemoteBugreportServiceIsActive.get()
5408                 || (getDeviceOwnerRemoteBugreportUri() != null)) {
5409             Slog.d(LOG_TAG, "Remote bugreport wasn't started because there's already one running.");
5410             return false;
5411         }
5412
5413         final long callingIdentity = mInjector.binderClearCallingIdentity();
5414         try {
5415             ActivityManagerNative.getDefault().requestBugReport(
5416                     ActivityManager.BUGREPORT_OPTION_REMOTE);
5417
5418             mRemoteBugreportServiceIsActive.set(true);
5419             mRemoteBugreportSharingAccepted.set(false);
5420             registerRemoteBugreportReceivers();
5421             mInjector.getNotificationManager().notifyAsUser(LOG_TAG, RemoteBugreportUtils.NOTIFICATION_ID,
5422                     RemoteBugreportUtils.buildNotification(mContext,
5423                             DevicePolicyManager.NOTIFICATION_BUGREPORT_STARTED), UserHandle.ALL);
5424             mHandler.postDelayed(mRemoteBugreportTimeoutRunnable,
5425                     RemoteBugreportUtils.REMOTE_BUGREPORT_TIMEOUT_MILLIS);
5426             return true;
5427         } catch (RemoteException re) {
5428             // should never happen
5429             Slog.e(LOG_TAG, "Failed to make remote calls to start bugreportremote service", re);
5430             return false;
5431         } finally {
5432             mInjector.binderRestoreCallingIdentity(callingIdentity);
5433         }
5434     }
5435
5436     synchronized void sendDeviceOwnerCommand(String action, Bundle extras) {
5437         Intent intent = new Intent(action);
5438         intent.setComponent(mOwners.getDeviceOwnerComponent());
5439         if (extras != null) {
5440             intent.putExtras(extras);
5441         }
5442         mContext.sendBroadcastAsUser(intent, UserHandle.of(mOwners.getDeviceOwnerUserId()));
5443     }
5444
5445     private synchronized String getDeviceOwnerRemoteBugreportUri() {
5446         return mOwners.getDeviceOwnerRemoteBugreportUri();
5447     }
5448
5449     private synchronized void setDeviceOwnerRemoteBugreportUriAndHash(String bugreportUri,
5450             String bugreportHash) {
5451         mOwners.setDeviceOwnerRemoteBugreportUriAndHash(bugreportUri, bugreportHash);
5452     }
5453
5454     private void registerRemoteBugreportReceivers() {
5455         try {
5456             IntentFilter filterFinished = new IntentFilter(
5457                     DevicePolicyManager.ACTION_REMOTE_BUGREPORT_DISPATCH,
5458                     RemoteBugreportUtils.BUGREPORT_MIMETYPE);
5459             mContext.registerReceiver(mRemoteBugreportFinishedReceiver, filterFinished);
5460         } catch (IntentFilter.MalformedMimeTypeException e) {
5461             // should never happen, as setting a constant
5462             Slog.w(LOG_TAG, "Failed to set type " + RemoteBugreportUtils.BUGREPORT_MIMETYPE, e);
5463         }
5464         IntentFilter filterConsent = new IntentFilter();
5465         filterConsent.addAction(DevicePolicyManager.ACTION_BUGREPORT_SHARING_DECLINED);
5466         filterConsent.addAction(DevicePolicyManager.ACTION_BUGREPORT_SHARING_ACCEPTED);
5467         mContext.registerReceiver(mRemoteBugreportConsentReceiver, filterConsent);
5468     }
5469
5470     private void onBugreportFinished(Intent intent) {
5471         mHandler.removeCallbacks(mRemoteBugreportTimeoutRunnable);
5472         mRemoteBugreportServiceIsActive.set(false);
5473         Uri bugreportUri = intent.getData();
5474         String bugreportUriString = null;
5475         if (bugreportUri != null) {
5476             bugreportUriString = bugreportUri.toString();
5477         }
5478         String bugreportHash = intent.getStringExtra(
5479                 DevicePolicyManager.EXTRA_REMOTE_BUGREPORT_HASH);
5480         if (mRemoteBugreportSharingAccepted.get()) {
5481             shareBugreportWithDeviceOwnerIfExists(bugreportUriString, bugreportHash);
5482             mInjector.getNotificationManager().cancel(LOG_TAG,
5483                     RemoteBugreportUtils.NOTIFICATION_ID);
5484         } else {
5485             setDeviceOwnerRemoteBugreportUriAndHash(bugreportUriString, bugreportHash);
5486             mInjector.getNotificationManager().notifyAsUser(LOG_TAG, RemoteBugreportUtils.NOTIFICATION_ID,
5487                     RemoteBugreportUtils.buildNotification(mContext,
5488                             DevicePolicyManager.NOTIFICATION_BUGREPORT_FINISHED_NOT_ACCEPTED),
5489                             UserHandle.ALL);
5490         }
5491         mContext.unregisterReceiver(mRemoteBugreportFinishedReceiver);
5492     }
5493
5494     private void onBugreportFailed() {
5495         mRemoteBugreportServiceIsActive.set(false);
5496         mInjector.systemPropertiesSet(RemoteBugreportUtils.CTL_STOP,
5497                 RemoteBugreportUtils.REMOTE_BUGREPORT_SERVICE);
5498         mRemoteBugreportSharingAccepted.set(false);
5499         setDeviceOwnerRemoteBugreportUriAndHash(null, null);
5500         mInjector.getNotificationManager().cancel(LOG_TAG, RemoteBugreportUtils.NOTIFICATION_ID);
5501         Bundle extras = new Bundle();
5502         extras.putInt(DeviceAdminReceiver.EXTRA_BUGREPORT_FAILURE_REASON,
5503                 DeviceAdminReceiver.BUGREPORT_FAILURE_FAILED_COMPLETING);
5504         sendDeviceOwnerCommand(DeviceAdminReceiver.ACTION_BUGREPORT_FAILED, extras);
5505         mContext.unregisterReceiver(mRemoteBugreportConsentReceiver);
5506         mContext.unregisterReceiver(mRemoteBugreportFinishedReceiver);
5507     }
5508
5509     private void onBugreportSharingAccepted() {
5510         mRemoteBugreportSharingAccepted.set(true);
5511         String bugreportUriString = null;
5512         String bugreportHash = null;
5513         synchronized (this) {
5514             bugreportUriString = getDeviceOwnerRemoteBugreportUri();
5515             bugreportHash = mOwners.getDeviceOwnerRemoteBugreportHash();
5516         }
5517         if (bugreportUriString != null) {
5518             shareBugreportWithDeviceOwnerIfExists(bugreportUriString, bugreportHash);
5519         } else if (mRemoteBugreportServiceIsActive.get()) {
5520             mInjector.getNotificationManager().notifyAsUser(LOG_TAG, RemoteBugreportUtils.NOTIFICATION_ID,
5521                     RemoteBugreportUtils.buildNotification(mContext,
5522                             DevicePolicyManager.NOTIFICATION_BUGREPORT_ACCEPTED_NOT_FINISHED),
5523                             UserHandle.ALL);
5524         }
5525     }
5526
5527     private void onBugreportSharingDeclined() {
5528         if (mRemoteBugreportServiceIsActive.get()) {
5529             mInjector.systemPropertiesSet(RemoteBugreportUtils.CTL_STOP,
5530                     RemoteBugreportUtils.REMOTE_BUGREPORT_SERVICE);
5531             mRemoteBugreportServiceIsActive.set(false);
5532             mHandler.removeCallbacks(mRemoteBugreportTimeoutRunnable);
5533             mContext.unregisterReceiver(mRemoteBugreportFinishedReceiver);
5534         }
5535         mRemoteBugreportSharingAccepted.set(false);
5536         setDeviceOwnerRemoteBugreportUriAndHash(null, null);
5537         sendDeviceOwnerCommand(DeviceAdminReceiver.ACTION_BUGREPORT_SHARING_DECLINED, null);
5538     }
5539
5540     private void shareBugreportWithDeviceOwnerIfExists(String bugreportUriString,
5541             String bugreportHash) {
5542         ParcelFileDescriptor pfd = null;
5543         try {
5544             if (bugreportUriString == null) {
5545                 throw new FileNotFoundException();
5546             }
5547             Uri bugreportUri = Uri.parse(bugreportUriString);
5548             pfd = mContext.getContentResolver().openFileDescriptor(bugreportUri, "r");
5549
5550             synchronized (this) {
5551                 Intent intent = new Intent(DeviceAdminReceiver.ACTION_BUGREPORT_SHARE);
5552                 intent.setComponent(mOwners.getDeviceOwnerComponent());
5553                 intent.setDataAndType(bugreportUri, RemoteBugreportUtils.BUGREPORT_MIMETYPE);
5554                 intent.putExtra(DeviceAdminReceiver.EXTRA_BUGREPORT_HASH, bugreportHash);
5555                 mContext.grantUriPermission(mOwners.getDeviceOwnerComponent().getPackageName(),
5556                         bugreportUri, Intent.FLAG_GRANT_READ_URI_PERMISSION);
5557                 mContext.sendBroadcastAsUser(intent, UserHandle.of(mOwners.getDeviceOwnerUserId()));
5558             }
5559         } catch (FileNotFoundException e) {
5560             Bundle extras = new Bundle();
5561             extras.putInt(DeviceAdminReceiver.EXTRA_BUGREPORT_FAILURE_REASON,
5562                     DeviceAdminReceiver.BUGREPORT_FAILURE_FILE_NO_LONGER_AVAILABLE);
5563             sendDeviceOwnerCommand(DeviceAdminReceiver.ACTION_BUGREPORT_FAILED, extras);
5564         } finally {
5565             try {
5566                 if (pfd != null) {
5567                     pfd.close();
5568                 }
5569             } catch (IOException ex) {
5570                 // Ignore
5571             }
5572             mRemoteBugreportSharingAccepted.set(false);
5573             setDeviceOwnerRemoteBugreportUriAndHash(null, null);
5574         }
5575     }
5576
5577     /**
5578      * Disables all device cameras according to the specified admin.
5579      */
5580     @Override
5581     public void setCameraDisabled(ComponentName who, boolean disabled) {
5582         if (!mHasFeature) {
5583             return;
5584         }
5585         Preconditions.checkNotNull(who, "ComponentName is null");
5586         final int userHandle = mInjector.userHandleGetCallingUserId();
5587         synchronized (this) {
5588             ActiveAdmin ap = getActiveAdminForCallerLocked(who,
5589                     DeviceAdminInfo.USES_POLICY_DISABLE_CAMERA);
5590             if (ap.disableCamera != disabled) {
5591                 ap.disableCamera = disabled;
5592                 saveSettingsLocked(userHandle);
5593             }
5594         }
5595         // Tell the user manager that the restrictions have changed.
5596         pushUserRestrictions(userHandle);
5597     }
5598
5599     /**
5600      * Gets whether or not all device cameras are disabled for a given admin, or disabled for any
5601      * active admins.
5602      */
5603     @Override
5604     public boolean getCameraDisabled(ComponentName who, int userHandle) {
5605         return getCameraDisabled(who, userHandle, /* mergeDeviceOwnerRestriction= */ true);
5606     }
5607
5608     private boolean getCameraDisabled(ComponentName who, int userHandle,
5609             boolean mergeDeviceOwnerRestriction) {
5610         if (!mHasFeature) {
5611             return false;
5612         }
5613         synchronized (this) {
5614             if (who != null) {
5615                 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle);
5616                 return (admin != null) ? admin.disableCamera : false;
5617             }
5618             // First, see if DO has set it.  If so, it's device-wide.
5619             if (mergeDeviceOwnerRestriction) {
5620                 final ActiveAdmin deviceOwner = getDeviceOwnerAdminLocked();
5621                 if (deviceOwner != null && deviceOwner.disableCamera) {
5622                     return true;
5623                 }
5624             }
5625
5626             // Then check each device admin on the user.
5627             DevicePolicyData policy = getUserData(userHandle);
5628             // Determine whether or not the device camera is disabled for any active admins.
5629             final int N = policy.mAdminList.size();
5630             for (int i = 0; i < N; i++) {
5631                 ActiveAdmin admin = policy.mAdminList.get(i);
5632                 if (admin.disableCamera) {
5633                     return true;
5634                 }
5635             }
5636             return false;
5637         }
5638     }
5639
5640     @Override
5641     public void setKeyguardDisabledFeatures(ComponentName who, int which, boolean parent) {
5642         if (!mHasFeature) {
5643             return;
5644         }
5645         Preconditions.checkNotNull(who, "ComponentName is null");
5646         final int userHandle = mInjector.userHandleGetCallingUserId();
5647         if (isManagedProfile(userHandle)) {
5648             if (parent) {
5649                 which = which & PROFILE_KEYGUARD_FEATURES_AFFECT_OWNER;
5650             } else {
5651                 which = which & PROFILE_KEYGUARD_FEATURES;
5652             }
5653         }
5654         synchronized (this) {
5655             ActiveAdmin ap = getActiveAdminForCallerLocked(
5656                     who, DeviceAdminInfo.USES_POLICY_DISABLE_KEYGUARD_FEATURES, parent);
5657             if (ap.disabledKeyguardFeatures != which) {
5658                 ap.disabledKeyguardFeatures = which;
5659                 saveSettingsLocked(userHandle);
5660             }
5661         }
5662     }
5663
5664     /**
5665      * Gets the disabled state for features in keyguard for the given admin,
5666      * or the aggregate of all active admins if who is null.
5667      */
5668     @Override
5669     public int getKeyguardDisabledFeatures(ComponentName who, int userHandle, boolean parent) {
5670         if (!mHasFeature) {
5671             return 0;
5672         }
5673         enforceFullCrossUsersPermission(userHandle);
5674         final long ident = mInjector.binderClearCallingIdentity();
5675         try {
5676             synchronized (this) {
5677                 if (who != null) {
5678                     ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle, parent);
5679                     return (admin != null) ? admin.disabledKeyguardFeatures : 0;
5680                 }
5681
5682                 final List<ActiveAdmin> admins;
5683                 if (!parent && isManagedProfile(userHandle)) {
5684                     // If we are being asked about a managed profile, just return keyguard features
5685                     // disabled by admins in the profile.
5686                     admins = getUserDataUnchecked(userHandle).mAdminList;
5687                 } else {
5688                     // Otherwise return those set by admins in the user and its profiles.
5689                     admins = getActiveAdminsForLockscreenPoliciesLocked(userHandle, parent);
5690                 }
5691
5692                 int which = DevicePolicyManager.KEYGUARD_DISABLE_FEATURES_NONE;
5693                 final int N = admins.size();
5694                 for (int i = 0; i < N; i++) {
5695                     ActiveAdmin admin = admins.get(i);
5696                     int userId = admin.getUserHandle().getIdentifier();
5697                     boolean isRequestedUser = !parent && (userId == userHandle);
5698                     if (isRequestedUser || !isManagedProfile(userId)) {
5699                         // If we are being asked explicitly about this user
5700                         // return all disabled features even if its a managed profile.
5701                         which |= admin.disabledKeyguardFeatures;
5702                     } else {
5703                         // Otherwise a managed profile is only allowed to disable
5704                         // some features on the parent user.
5705                         which |= (admin.disabledKeyguardFeatures
5706                                 & PROFILE_KEYGUARD_FEATURES_AFFECT_OWNER);
5707                     }
5708                 }
5709                 return which;
5710             }
5711         } finally {
5712             mInjector.binderRestoreCallingIdentity(ident);
5713         }
5714     }
5715
5716     @Override
5717     public void setKeepUninstalledPackages(ComponentName who, List<String> packageList) {
5718         if (!mHasFeature) {
5719             return;
5720         }
5721         Preconditions.checkNotNull(who, "ComponentName is null");
5722         Preconditions.checkNotNull(packageList, "packageList is null");
5723         final int userHandle = UserHandle.getCallingUserId();
5724         synchronized (this) {
5725             ActiveAdmin admin = getActiveAdminForCallerLocked(who,
5726                     DeviceAdminInfo.USES_POLICY_DEVICE_OWNER);
5727             admin.keepUninstalledPackages = packageList;
5728             saveSettingsLocked(userHandle);
5729             mInjector.getPackageManagerInternal().setKeepUninstalledPackages(packageList);
5730         }
5731     }
5732
5733     @Override
5734     public List<String> getKeepUninstalledPackages(ComponentName who) {
5735         Preconditions.checkNotNull(who, "ComponentName is null");
5736         if (!mHasFeature) {
5737             return null;
5738         }
5739         // TODO In split system user mode, allow apps on user 0 to query the list
5740         synchronized (this) {
5741             // Check if this is the device owner who is calling
5742             getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER);
5743             return getKeepUninstalledPackagesLocked();
5744         }
5745     }
5746
5747     private List<String> getKeepUninstalledPackagesLocked() {
5748         ActiveAdmin deviceOwner = getDeviceOwnerAdminLocked();
5749         return (deviceOwner != null) ? deviceOwner.keepUninstalledPackages : null;
5750     }
5751
5752     @Override
5753     public boolean setDeviceOwner(ComponentName admin, String ownerName, int userId) {
5754         if (!mHasFeature) {
5755             return false;
5756         }
5757         if (admin == null
5758                 || !isPackageInstalledForUser(admin.getPackageName(), userId)) {
5759             throw new IllegalArgumentException("Invalid component " + admin
5760                     + " for device owner");
5761         }
5762         synchronized (this) {
5763             enforceCanSetDeviceOwnerLocked(admin, userId);
5764             if (getActiveAdminUncheckedLocked(admin, userId) == null
5765                     || getUserData(userId).mRemovingAdmins.contains(admin)) {
5766                 throw new IllegalArgumentException("Not active admin: " + admin);
5767             }
5768
5769             // Shutting down backup manager service permanently.
5770             long ident = mInjector.binderClearCallingIdentity();
5771             try {
5772                 if (mInjector.getIBackupManager() != null) {
5773                     mInjector.getIBackupManager()
5774                             .setBackupServiceActive(UserHandle.USER_SYSTEM, false);
5775                 }
5776             } catch (RemoteException e) {
5777                 throw new IllegalStateException("Failed deactivating backup service.", e);
5778             } finally {
5779                 mInjector.binderRestoreCallingIdentity(ident);
5780             }
5781
5782             mOwners.setDeviceOwner(admin, ownerName, userId);
5783             mOwners.writeDeviceOwner();
5784             updateDeviceOwnerLocked();
5785             setDeviceOwnerSystemPropertyLocked();
5786             Intent intent = new Intent(DevicePolicyManager.ACTION_DEVICE_OWNER_CHANGED);
5787
5788             ident = mInjector.binderClearCallingIdentity();
5789             try {
5790                 // TODO Send to system too?
5791                 mContext.sendBroadcastAsUser(intent, new UserHandle(userId));
5792             } finally {
5793                 mInjector.binderRestoreCallingIdentity(ident);
5794             }
5795             Slog.i(LOG_TAG, "Device owner set: " + admin + " on user " + userId);
5796             return true;
5797         }
5798     }
5799
5800     public boolean isDeviceOwner(ComponentName who, int userId) {
5801         synchronized (this) {
5802             return mOwners.hasDeviceOwner()
5803                     && mOwners.getDeviceOwnerUserId() == userId
5804                     && mOwners.getDeviceOwnerComponent().equals(who);
5805         }
5806     }
5807
5808     public boolean isProfileOwner(ComponentName who, int userId) {
5809         final ComponentName profileOwner = getProfileOwner(userId);
5810         return who != null && who.equals(profileOwner);
5811     }
5812
5813     @Override
5814     public ComponentName getDeviceOwnerComponent(boolean callingUserOnly) {
5815         if (!mHasFeature) {
5816             return null;
5817         }
5818         if (!callingUserOnly) {
5819             enforceManageUsers();
5820         }
5821         synchronized (this) {
5822             if (!mOwners.hasDeviceOwner()) {
5823                 return null;
5824             }
5825             if (callingUserOnly && mInjector.userHandleGetCallingUserId() !=
5826                     mOwners.getDeviceOwnerUserId()) {
5827                 return null;
5828             }
5829             return mOwners.getDeviceOwnerComponent();
5830         }
5831     }
5832
5833     @Override
5834     public int getDeviceOwnerUserId() {
5835         if (!mHasFeature) {
5836             return UserHandle.USER_NULL;
5837         }
5838         enforceManageUsers();
5839         synchronized (this) {
5840             return mOwners.hasDeviceOwner() ? mOwners.getDeviceOwnerUserId() : UserHandle.USER_NULL;
5841         }
5842     }
5843
5844     /**
5845      * Returns the "name" of the device owner.  It'll work for non-DO users too, but requires
5846      * MANAGE_USERS.
5847      */
5848     @Override
5849     public String getDeviceOwnerName() {
5850         if (!mHasFeature) {
5851             return null;
5852         }
5853         enforceManageUsers();
5854         synchronized (this) {
5855             if (!mOwners.hasDeviceOwner()) {
5856                 return null;
5857             }
5858             // TODO This totally ignores the name passed to setDeviceOwner (change for b/20679292)
5859             // Should setDeviceOwner/ProfileOwner still take a name?
5860             String deviceOwnerPackage = mOwners.getDeviceOwnerPackageName();
5861             return getApplicationLabel(deviceOwnerPackage, UserHandle.USER_SYSTEM);
5862         }
5863     }
5864
5865     // Returns the active device owner or null if there is no device owner.
5866     @VisibleForTesting
5867     ActiveAdmin getDeviceOwnerAdminLocked() {
5868         ComponentName component = mOwners.getDeviceOwnerComponent();
5869         if (component == null) {
5870             return null;
5871         }
5872
5873         DevicePolicyData policy = getUserData(mOwners.getDeviceOwnerUserId());
5874         final int n = policy.mAdminList.size();
5875         for (int i = 0; i < n; i++) {
5876             ActiveAdmin admin = policy.mAdminList.get(i);
5877             if (component.equals(admin.info.getComponent())) {
5878                 return admin;
5879             }
5880         }
5881         Slog.wtf(LOG_TAG, "Active admin for device owner not found. component=" + component);
5882         return null;
5883     }
5884
5885     @Override
5886     public void clearDeviceOwner(String packageName) {
5887         Preconditions.checkNotNull(packageName, "packageName is null");
5888         final int callingUid = mInjector.binderGetCallingUid();
5889         try {
5890             int uid = mContext.getPackageManager().getPackageUidAsUser(packageName,
5891                     UserHandle.getUserId(callingUid));
5892             if (uid != callingUid) {
5893                 throw new SecurityException("Invalid packageName");
5894             }
5895         } catch (NameNotFoundException e) {
5896             throw new SecurityException(e);
5897         }
5898         synchronized (this) {
5899             final ComponentName deviceOwnerComponent = mOwners.getDeviceOwnerComponent();
5900             final int deviceOwnerUserId = mOwners.getDeviceOwnerUserId();
5901             if (!mOwners.hasDeviceOwner()
5902                     || !deviceOwnerComponent.getPackageName().equals(packageName)
5903                     || (deviceOwnerUserId != UserHandle.getUserId(callingUid))) {
5904                 throw new SecurityException(
5905                         "clearDeviceOwner can only be called by the device owner");
5906             }
5907             enforceUserUnlocked(deviceOwnerUserId);
5908
5909             final ActiveAdmin admin = getDeviceOwnerAdminLocked();
5910             long ident = mInjector.binderClearCallingIdentity();
5911             try {
5912                 clearDeviceOwnerLocked(admin, deviceOwnerUserId);
5913                 removeActiveAdminLocked(deviceOwnerComponent, deviceOwnerUserId);
5914             } finally {
5915                 mInjector.binderRestoreCallingIdentity(ident);
5916             }
5917             Slog.i(LOG_TAG, "Device owner removed: " + deviceOwnerComponent);
5918         }
5919     }
5920
5921     private void clearDeviceOwnerLocked(ActiveAdmin admin, int userId) {
5922         if (admin != null) {
5923             admin.disableCamera = false;
5924             admin.userRestrictions = null;
5925             admin.forceEphemeralUsers = false;
5926             mUserManagerInternal.setForceEphemeralUsers(admin.forceEphemeralUsers);
5927         }
5928         clearUserPoliciesLocked(userId);
5929
5930         mOwners.clearDeviceOwner();
5931         mOwners.writeDeviceOwner();
5932         updateDeviceOwnerLocked();
5933         disableSecurityLoggingIfNotCompliant();
5934         try {
5935             if (mInjector.getIBackupManager() != null) {
5936                 // Reactivate backup service.
5937                 mInjector.getIBackupManager().setBackupServiceActive(UserHandle.USER_SYSTEM, true);
5938             }
5939         } catch (RemoteException e) {
5940             throw new IllegalStateException("Failed reactivating backup service.", e);
5941         }
5942     }
5943
5944     @Override
5945     public boolean setProfileOwner(ComponentName who, String ownerName, int userHandle) {
5946         if (!mHasFeature) {
5947             return false;
5948         }
5949         if (who == null
5950                 || !isPackageInstalledForUser(who.getPackageName(), userHandle)) {
5951             throw new IllegalArgumentException("Component " + who
5952                     + " not installed for userId:" + userHandle);
5953         }
5954         synchronized (this) {
5955             enforceCanSetProfileOwnerLocked(who, userHandle);
5956
5957             if (getActiveAdminUncheckedLocked(who, userHandle) == null
5958                     || getUserData(userHandle).mRemovingAdmins.contains(who)) {
5959                 throw new IllegalArgumentException("Not active admin: " + who);
5960             }
5961
5962             mOwners.setProfileOwner(who, ownerName, userHandle);
5963             mOwners.writeProfileOwner(userHandle);
5964             Slog.i(LOG_TAG, "Profile owner set: " + who + " on user " + userHandle);
5965             return true;
5966         }
5967     }
5968
5969     @Override
5970     public void clearProfileOwner(ComponentName who) {
5971         if (!mHasFeature) {
5972             return;
5973         }
5974         final UserHandle callingUser = mInjector.binderGetCallingUserHandle();
5975         final int userId = callingUser.getIdentifier();
5976         enforceNotManagedProfile(userId, "clear profile owner");
5977         enforceUserUnlocked(userId);
5978         // Check if this is the profile owner who is calling
5979         final ActiveAdmin admin =
5980                 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER);
5981         synchronized (this) {
5982             final long ident = mInjector.binderClearCallingIdentity();
5983             try {
5984                 clearProfileOwnerLocked(admin, userId);
5985                 removeActiveAdminLocked(who, userId);
5986             } finally {
5987                 mInjector.binderRestoreCallingIdentity(ident);
5988             }
5989             Slog.i(LOG_TAG, "Profile owner " + who + " removed from user " + userId);
5990         }
5991     }
5992
5993     public void clearProfileOwnerLocked(ActiveAdmin admin, int userId) {
5994         if (admin != null) {
5995             admin.disableCamera = false;
5996             admin.userRestrictions = null;
5997         }
5998         clearUserPoliciesLocked(userId);
5999         mOwners.removeProfileOwner(userId);
6000         mOwners.writeProfileOwner(userId);
6001     }
6002
6003     @Override
6004     public void setDeviceOwnerLockScreenInfo(ComponentName who, CharSequence info) {
6005         Preconditions.checkNotNull(who, "ComponentName is null");
6006         if (!mHasFeature) {
6007             return;
6008         }
6009
6010         synchronized (this) {
6011             getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER);
6012             long token = mInjector.binderClearCallingIdentity();
6013             try {
6014                 mLockPatternUtils.setDeviceOwnerInfo(info != null ? info.toString() : null);
6015             } finally {
6016                 mInjector.binderRestoreCallingIdentity(token);
6017             }
6018         }
6019     }
6020
6021     @Override
6022     public CharSequence getDeviceOwnerLockScreenInfo() {
6023         return mLockPatternUtils.getDeviceOwnerInfo();
6024     }
6025
6026     private void clearUserPoliciesLocked(int userId) {
6027         // Reset some of the user-specific policies
6028         DevicePolicyData policy = getUserData(userId);
6029         policy.mPermissionPolicy = DevicePolicyManager.PERMISSION_POLICY_PROMPT;
6030         policy.mDelegatedCertInstallerPackage = null;
6031         policy.mApplicationRestrictionsManagingPackage = null;
6032         policy.mStatusBarDisabled = false;
6033         policy.mUserProvisioningState = DevicePolicyManager.STATE_USER_UNMANAGED;
6034         saveSettingsLocked(userId);
6035
6036         try {
6037             mIPackageManager.updatePermissionFlagsForAllApps(
6038                     PackageManager.FLAG_PERMISSION_POLICY_FIXED,
6039                     0  /* flagValues */, userId);
6040             pushUserRestrictions(userId);
6041         } catch (RemoteException re) {
6042             // Shouldn't happen.
6043         }
6044     }
6045
6046     @Override
6047     public boolean hasUserSetupCompleted() {
6048         return hasUserSetupCompleted(UserHandle.getCallingUserId());
6049     }
6050
6051     private boolean hasUserSetupCompleted(int userHandle) {
6052         if (!mHasFeature) {
6053             return true;
6054         }
6055         return getUserData(userHandle).mUserSetupComplete;
6056     }
6057
6058     @Override
6059     public int getUserProvisioningState() {
6060         if (!mHasFeature) {
6061             return DevicePolicyManager.STATE_USER_UNMANAGED;
6062         }
6063         int userHandle = mInjector.userHandleGetCallingUserId();
6064         return getUserProvisioningState(userHandle);
6065     }
6066
6067     private int getUserProvisioningState(int userHandle) {
6068         return getUserData(userHandle).mUserProvisioningState;
6069     }
6070
6071     @Override
6072     public void setUserProvisioningState(int newState, int userHandle) {
6073         if (!mHasFeature) {
6074             return;
6075         }
6076
6077         if (userHandle != mOwners.getDeviceOwnerUserId() && !mOwners.hasProfileOwner(userHandle)
6078                 && getManagedUserId(userHandle) == -1) {
6079             // No managed device, user or profile, so setting provisioning state makes no sense.
6080             throw new IllegalStateException("Not allowed to change provisioning state unless a "
6081                       + "device or profile owner is set.");
6082         }
6083
6084         synchronized (this) {
6085             boolean transitionCheckNeeded = true;
6086
6087             // Calling identity/permission checks.
6088             final int callingUid = mInjector.binderGetCallingUid();
6089             if (callingUid == Process.SHELL_UID || callingUid == Process.ROOT_UID) {
6090                 // ADB shell can only move directly from un-managed to finalized as part of directly
6091                 // setting profile-owner or device-owner.
6092                 if (getUserProvisioningState(userHandle) !=
6093                         DevicePolicyManager.STATE_USER_UNMANAGED
6094                         || newState != DevicePolicyManager.STATE_USER_SETUP_FINALIZED) {
6095                     throw new IllegalStateException("Not allowed to change provisioning state "
6096                             + "unless current provisioning state is unmanaged, and new state is "
6097                             + "finalized.");
6098                 }
6099                 transitionCheckNeeded = false;
6100             } else {
6101                 // For all other cases, caller must have MANAGE_PROFILE_AND_DEVICE_OWNERS.
6102                 enforceCanManageProfileAndDeviceOwners();
6103             }
6104
6105             final DevicePolicyData policyData = getUserData(userHandle);
6106             if (transitionCheckNeeded) {
6107                 // Optional state transition check for non-ADB case.
6108                 checkUserProvisioningStateTransition(policyData.mUserProvisioningState, newState);
6109             }
6110             policyData.mUserProvisioningState = newState;
6111             saveSettingsLocked(userHandle);
6112         }
6113     }
6114
6115     private void checkUserProvisioningStateTransition(int currentState, int newState) {
6116         // Valid transitions for normal use-cases.
6117         switch (currentState) {
6118             case DevicePolicyManager.STATE_USER_UNMANAGED:
6119                 // Can move to any state from unmanaged (except itself as an edge case)..
6120                 if (newState != DevicePolicyManager.STATE_USER_UNMANAGED) {
6121                     return;
6122                 }
6123                 break;
6124             case DevicePolicyManager.STATE_USER_SETUP_INCOMPLETE:
6125             case DevicePolicyManager.STATE_USER_SETUP_COMPLETE:
6126                 // Can only move to finalized from these states.
6127                 if (newState == DevicePolicyManager.STATE_USER_SETUP_FINALIZED) {
6128                     return;
6129                 }
6130                 break;
6131             case DevicePolicyManager.STATE_USER_PROFILE_COMPLETE:
6132                 // Current user has a managed-profile, but current user is not managed, so
6133                 // rather than moving to finalized state, go back to unmanaged once
6134                 // profile provisioning is complete.
6135                 if (newState == DevicePolicyManager.STATE_USER_UNMANAGED) {
6136                     return;
6137                 }
6138                 break;
6139             case DevicePolicyManager.STATE_USER_SETUP_FINALIZED:
6140                 // Cannot transition out of finalized.
6141                 break;
6142         }
6143
6144         // Didn't meet any of the accepted state transition checks above, throw appropriate error.
6145         throw new IllegalStateException("Cannot move to user provisioning state [" + newState + "] "
6146                 + "from state [" + currentState + "]");
6147     }
6148
6149     @Override
6150     public void setProfileEnabled(ComponentName who) {
6151         if (!mHasFeature) {
6152             return;
6153         }
6154         Preconditions.checkNotNull(who, "ComponentName is null");
6155         synchronized (this) {
6156             // Check if this is the profile owner who is calling
6157             getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER);
6158             final int userId = UserHandle.getCallingUserId();
6159             enforceManagedProfile(userId, "enable the profile");
6160
6161             long id = mInjector.binderClearCallingIdentity();
6162             try {
6163                 mUserManager.setUserEnabled(userId);
6164                 UserInfo parent = mUserManager.getProfileParent(userId);
6165                 Intent intent = new Intent(Intent.ACTION_MANAGED_PROFILE_ADDED);
6166                 intent.putExtra(Intent.EXTRA_USER, new UserHandle(userId));
6167                 intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY |
6168                         Intent.FLAG_RECEIVER_FOREGROUND);
6169                 mContext.sendBroadcastAsUser(intent, new UserHandle(parent.id));
6170             } finally {
6171                 mInjector.binderRestoreCallingIdentity(id);
6172             }
6173         }
6174     }
6175
6176     @Override
6177     public void setProfileName(ComponentName who, String profileName) {
6178         Preconditions.checkNotNull(who, "ComponentName is null");
6179         int userId = UserHandle.getCallingUserId();
6180         // Check if this is the profile owner (includes device owner).
6181         getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER);
6182
6183         long id = mInjector.binderClearCallingIdentity();
6184         try {
6185             mUserManager.setUserName(userId, profileName);
6186         } finally {
6187             mInjector.binderRestoreCallingIdentity(id);
6188         }
6189     }
6190
6191     @Override
6192     public ComponentName getProfileOwner(int userHandle) {
6193         if (!mHasFeature) {
6194             return null;
6195         }
6196
6197         synchronized (this) {
6198             return mOwners.getProfileOwnerComponent(userHandle);
6199         }
6200     }
6201
6202     // Returns the active profile owner for this user or null if the current user has no
6203     // profile owner.
6204     @VisibleForTesting
6205     ActiveAdmin getProfileOwnerAdminLocked(int userHandle) {
6206         ComponentName profileOwner = mOwners.getProfileOwnerComponent(userHandle);
6207         if (profileOwner == null) {
6208             return null;
6209         }
6210         DevicePolicyData policy = getUserData(userHandle);
6211         final int n = policy.mAdminList.size();
6212         for (int i = 0; i < n; i++) {
6213             ActiveAdmin admin = policy.mAdminList.get(i);
6214             if (profileOwner.equals(admin.info.getComponent())) {
6215                 return admin;
6216             }
6217         }
6218         return null;
6219     }
6220
6221     @Override
6222     public String getProfileOwnerName(int userHandle) {
6223         if (!mHasFeature) {
6224             return null;
6225         }
6226         enforceManageUsers();
6227         ComponentName profileOwner = getProfileOwner(userHandle);
6228         if (profileOwner == null) {
6229             return null;
6230         }
6231         return getApplicationLabel(profileOwner.getPackageName(), userHandle);
6232     }
6233
6234     /**
6235      * Canonical name for a given package.
6236      */
6237     private String getApplicationLabel(String packageName, int userHandle) {
6238         long token = mInjector.binderClearCallingIdentity();
6239         try {
6240             final Context userContext;
6241             try {
6242                 UserHandle handle = new UserHandle(userHandle);
6243                 userContext = mContext.createPackageContextAsUser(packageName, 0, handle);
6244             } catch (PackageManager.NameNotFoundException nnfe) {
6245                 Log.w(LOG_TAG, packageName + " is not installed for user " + userHandle, nnfe);
6246                 return null;
6247             }
6248             ApplicationInfo appInfo = userContext.getApplicationInfo();
6249             CharSequence result = null;
6250             if (appInfo != null) {
6251                 PackageManager pm = userContext.getPackageManager();
6252                 result = pm.getApplicationLabel(appInfo);
6253             }
6254             return result != null ? result.toString() : null;
6255         } finally {
6256             mInjector.binderRestoreCallingIdentity(token);
6257         }
6258     }
6259
6260     /**
6261      * The profile owner can only be set by adb or an app with the MANAGE_PROFILE_AND_DEVICE_OWNERS
6262      * permission.
6263      * The profile owner can only be set before the user setup phase has completed,
6264      * except for:
6265      * - SYSTEM_UID
6266      * - adb if there are no accounts. (But see {@link #hasIncompatibleAccountsLocked})
6267      */
6268     private void enforceCanSetProfileOwnerLocked(@Nullable ComponentName owner, int userHandle) {
6269         UserInfo info = getUserInfo(userHandle);
6270         if (info == null) {
6271             // User doesn't exist.
6272             throw new IllegalArgumentException(
6273                     "Attempted to set profile owner for invalid userId: " + userHandle);
6274         }
6275         if (info.isGuest()) {
6276             throw new IllegalStateException("Cannot set a profile owner on a guest");
6277         }
6278         if (mOwners.hasProfileOwner(userHandle)) {
6279             throw new IllegalStateException("Trying to set the profile owner, but profile owner "
6280                     + "is already set.");
6281         }
6282         if (mOwners.hasDeviceOwner() && mOwners.getDeviceOwnerUserId() == userHandle) {
6283             throw new IllegalStateException("Trying to set the profile owner, but the user "
6284                     + "already has a device owner.");
6285         }
6286         int callingUid = mInjector.binderGetCallingUid();
6287         if (callingUid == Process.SHELL_UID || callingUid == Process.ROOT_UID) {
6288             if (hasUserSetupCompleted(userHandle)
6289                     && hasIncompatibleAccountsLocked(userHandle, owner)) {
6290                 throw new IllegalStateException("Not allowed to set the profile owner because "
6291                         + "there are already some accounts on the profile");
6292             }
6293             return;
6294         }
6295         enforceCanManageProfileAndDeviceOwners();
6296         if (hasUserSetupCompleted(userHandle) && !isCallerWithSystemUid()) {
6297             throw new IllegalStateException("Cannot set the profile owner on a user which is "
6298                     + "already set-up");
6299         }
6300     }
6301
6302     /**
6303      * The Device owner can only be set by adb or an app with the MANAGE_PROFILE_AND_DEVICE_OWNERS
6304      * permission.
6305      */
6306     private void enforceCanSetDeviceOwnerLocked(@Nullable ComponentName owner, int userId) {
6307         int callingUid = mInjector.binderGetCallingUid();
6308         boolean isAdb = callingUid == Process.SHELL_UID || callingUid == Process.ROOT_UID;
6309         if (!isAdb) {
6310             enforceCanManageProfileAndDeviceOwners();
6311         }
6312
6313         final int code = checkSetDeviceOwnerPreConditionLocked(owner, userId, isAdb);
6314         switch (code) {
6315             case CODE_OK:
6316                 return;
6317             case CODE_HAS_DEVICE_OWNER:
6318                 throw new IllegalStateException(
6319                         "Trying to set the device owner, but device owner is already set.");
6320             case CODE_USER_HAS_PROFILE_OWNER:
6321                 throw new IllegalStateException("Trying to set the device owner, but the user "
6322                         + "already has a profile owner.");
6323             case CODE_USER_NOT_RUNNING:
6324                 throw new IllegalStateException("User not running: " + userId);
6325             case CODE_NOT_SYSTEM_USER:
6326                 throw new IllegalStateException("User is not system user");
6327             case CODE_USER_SETUP_COMPLETED:
6328                 throw new IllegalStateException(
6329                         "Cannot set the device owner if the device is already set-up");
6330             case CODE_NONSYSTEM_USER_EXISTS:
6331                 throw new IllegalStateException("Not allowed to set the device owner because there "
6332                         + "are already several users on the device");
6333             case CODE_ACCOUNTS_NOT_EMPTY:
6334                 throw new IllegalStateException("Not allowed to set the device owner because there "
6335                         + "are already some accounts on the device");
6336             default:
6337                 throw new IllegalStateException("Unknown @DeviceOwnerPreConditionCode " + code);
6338         }
6339     }
6340
6341     private void enforceUserUnlocked(int userId) {
6342         // Since we're doing this operation on behalf of an app, we only
6343         // want to use the actual "unlocked" state.
6344         Preconditions.checkState(mUserManager.isUserUnlocked(userId),
6345                 "User must be running and unlocked");
6346     }
6347
6348     private void enforceManageUsers() {
6349         final int callingUid = mInjector.binderGetCallingUid();
6350         if (!(isCallerWithSystemUid() || callingUid == Process.ROOT_UID)) {
6351             mContext.enforceCallingOrSelfPermission(android.Manifest.permission.MANAGE_USERS, null);
6352         }
6353     }
6354
6355     private void enforceFullCrossUsersPermission(int userHandle) {
6356         enforceSystemUserOrPermission(userHandle,
6357                 android.Manifest.permission.INTERACT_ACROSS_USERS_FULL);
6358     }
6359
6360     private void enforceCrossUsersPermission(int userHandle) {
6361         enforceSystemUserOrPermission(userHandle,
6362                 android.Manifest.permission.INTERACT_ACROSS_USERS);
6363     }
6364
6365     private void enforceSystemUserOrPermission(int userHandle, String permission) {
6366         if (userHandle < 0) {
6367             throw new IllegalArgumentException("Invalid userId " + userHandle);
6368         }
6369         final int callingUid = mInjector.binderGetCallingUid();
6370         if (userHandle == UserHandle.getUserId(callingUid)) {
6371             return;
6372         }
6373         if (!(isCallerWithSystemUid() || callingUid == Process.ROOT_UID)) {
6374             mContext.enforceCallingOrSelfPermission(permission,
6375                     "Must be system or have " + permission + " permission");
6376         }
6377     }
6378
6379     private void enforceManagedProfile(int userHandle, String message) {
6380         if(!isManagedProfile(userHandle)) {
6381             throw new SecurityException("You can not " + message + " outside a managed profile.");
6382         }
6383     }
6384
6385     private void enforceNotManagedProfile(int userHandle, String message) {
6386         if(isManagedProfile(userHandle)) {
6387             throw new SecurityException("You can not " + message + " for a managed profile.");
6388         }
6389     }
6390
6391     private void ensureCallerPackage(@Nullable String packageName) {
6392         if (packageName == null) {
6393             Preconditions.checkState(isCallerWithSystemUid(),
6394                     "Only caller can omit package name");
6395         } else {
6396             final int callingUid = mInjector.binderGetCallingUid();
6397             final int userId = mInjector.userHandleGetCallingUserId();
6398             try {
6399                 final ApplicationInfo ai = mIPackageManager.getApplicationInfo(
6400                         packageName, 0, userId);
6401                 Preconditions.checkState(ai.uid == callingUid, "Unmatching package name");
6402             } catch (RemoteException e) {
6403                 // Shouldn't happen
6404             }
6405         }
6406     }
6407
6408     private boolean isCallerWithSystemUid() {
6409         return UserHandle.isSameApp(mInjector.binderGetCallingUid(), Process.SYSTEM_UID);
6410     }
6411
6412     private int getProfileParentId(int userHandle) {
6413         final long ident = mInjector.binderClearCallingIdentity();
6414         try {
6415             UserInfo parentUser = mUserManager.getProfileParent(userHandle);
6416             return parentUser != null ? parentUser.id : userHandle;
6417         } finally {
6418             mInjector.binderRestoreCallingIdentity(ident);
6419         }
6420     }
6421
6422     private int getCredentialOwner(int userHandle, boolean parent) {
6423         final long ident = mInjector.binderClearCallingIdentity();
6424         try {
6425             if (parent) {
6426                 UserInfo parentProfile = mUserManager.getProfileParent(userHandle);
6427                 if (parentProfile != null) {
6428                     userHandle = parentProfile.id;
6429                 }
6430             }
6431             return mUserManager.getCredentialOwnerProfile(userHandle);
6432         } finally {
6433             mInjector.binderRestoreCallingIdentity(ident);
6434         }
6435     }
6436
6437     private boolean isManagedProfile(int userHandle) {
6438         return getUserInfo(userHandle).isManagedProfile();
6439     }
6440
6441     private void enableIfNecessary(String packageName, int userId) {
6442         try {
6443             ApplicationInfo ai = mIPackageManager.getApplicationInfo(packageName,
6444                     PackageManager.GET_DISABLED_UNTIL_USED_COMPONENTS,
6445                     userId);
6446             if (ai.enabledSetting
6447                     == PackageManager.COMPONENT_ENABLED_STATE_DISABLED_UNTIL_USED) {
6448                 mIPackageManager.setApplicationEnabledSetting(packageName,
6449                         PackageManager.COMPONENT_ENABLED_STATE_DEFAULT,
6450                         PackageManager.DONT_KILL_APP, userId, "DevicePolicyManager");
6451             }
6452         } catch (RemoteException e) {
6453         }
6454     }
6455
6456     @Override
6457     protected void dump(FileDescriptor fd, PrintWriter pw, String[] args) {
6458         if (mContext.checkCallingOrSelfPermission(android.Manifest.permission.DUMP)
6459                 != PackageManager.PERMISSION_GRANTED) {
6460
6461             pw.println("Permission Denial: can't dump DevicePolicyManagerService from from pid="
6462                     + mInjector.binderGetCallingPid()
6463                     + ", uid=" + mInjector.binderGetCallingUid());
6464             return;
6465         }
6466
6467         synchronized (this) {
6468             pw.println("Current Device Policy Manager state:");
6469             mOwners.dump("  ", pw);
6470             int userCount = mUserData.size();
6471             for (int u = 0; u < userCount; u++) {
6472                 DevicePolicyData policy = getUserData(mUserData.keyAt(u));
6473                 pw.println();
6474                 pw.println("  Enabled Device Admins (User " + policy.mUserHandle
6475                         + ", provisioningState: " + policy.mUserProvisioningState + "):");
6476                 final int N = policy.mAdminList.size();
6477                 for (int i=0; i<N; i++) {
6478                     ActiveAdmin ap = policy.mAdminList.get(i);
6479                     if (ap != null) {
6480                         pw.print("    "); pw.print(ap.info.getComponent().flattenToShortString());
6481                                 pw.println(":");
6482                         ap.dump("      ", pw);
6483                     }
6484                 }
6485                 if (!policy.mRemovingAdmins.isEmpty()) {
6486                     pw.println("    Removing Device Admins (User " + policy.mUserHandle + "): "
6487                             + policy.mRemovingAdmins);
6488                 }
6489
6490                 pw.println(" ");
6491                 pw.print("    mPasswordOwner="); pw.println(policy.mPasswordOwner);
6492             }
6493             pw.println();
6494             pw.println("Encryption Status: " + getEncryptionStatusName(getEncryptionStatus()));
6495         }
6496     }
6497
6498     private String getEncryptionStatusName(int encryptionStatus) {
6499         switch (encryptionStatus) {
6500             case DevicePolicyManager.ENCRYPTION_STATUS_INACTIVE:
6501                 return "inactive";
6502             case DevicePolicyManager.ENCRYPTION_STATUS_ACTIVE_DEFAULT_KEY:
6503                 return "block default key";
6504             case DevicePolicyManager.ENCRYPTION_STATUS_ACTIVE:
6505                 return "block";
6506             case DevicePolicyManager.ENCRYPTION_STATUS_ACTIVE_PER_USER:
6507                 return "per-user";
6508             case DevicePolicyManager.ENCRYPTION_STATUS_UNSUPPORTED:
6509                 return "unsupported";
6510             case DevicePolicyManager.ENCRYPTION_STATUS_ACTIVATING:
6511                 return "activating";
6512             default:
6513                 return "unknown";
6514         }
6515     }
6516
6517     @Override
6518     public void addPersistentPreferredActivity(ComponentName who, IntentFilter filter,
6519             ComponentName activity) {
6520         Preconditions.checkNotNull(who, "ComponentName is null");
6521         final int userHandle = UserHandle.getCallingUserId();
6522         synchronized (this) {
6523             getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER);
6524
6525             long id = mInjector.binderClearCallingIdentity();
6526             try {
6527                 mIPackageManager.addPersistentPreferredActivity(filter, activity, userHandle);
6528             } catch (RemoteException re) {
6529                 // Shouldn't happen
6530             } finally {
6531                 mInjector.binderRestoreCallingIdentity(id);
6532             }
6533         }
6534     }
6535
6536     @Override
6537     public void clearPackagePersistentPreferredActivities(ComponentName who, String packageName) {
6538         Preconditions.checkNotNull(who, "ComponentName is null");
6539         final int userHandle = UserHandle.getCallingUserId();
6540         synchronized (this) {
6541             getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER);
6542
6543             long id = mInjector.binderClearCallingIdentity();
6544             try {
6545                 mIPackageManager.clearPackagePersistentPreferredActivities(packageName, userHandle);
6546             } catch (RemoteException re) {
6547                 // Shouldn't happen
6548             } finally {
6549                 mInjector.binderRestoreCallingIdentity(id);
6550             }
6551         }
6552     }
6553
6554     @Override
6555     public boolean setApplicationRestrictionsManagingPackage(ComponentName admin,
6556             String packageName) {
6557         Preconditions.checkNotNull(admin, "ComponentName is null");
6558
6559         final int userHandle = mInjector.userHandleGetCallingUserId();
6560         synchronized (this) {
6561             getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER);
6562             if (packageName != null && !isPackageInstalledForUser(packageName, userHandle)) {
6563                 return false;
6564             }
6565             DevicePolicyData policy = getUserData(userHandle);
6566             policy.mApplicationRestrictionsManagingPackage = packageName;
6567             saveSettingsLocked(userHandle);
6568             return true;
6569         }
6570     }
6571
6572     @Override
6573     public String getApplicationRestrictionsManagingPackage(ComponentName admin) {
6574         Preconditions.checkNotNull(admin, "ComponentName is null");
6575
6576         final int userHandle = mInjector.userHandleGetCallingUserId();
6577         synchronized (this) {
6578             getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER);
6579             DevicePolicyData policy = getUserData(userHandle);
6580             return policy.mApplicationRestrictionsManagingPackage;
6581         }
6582     }
6583
6584     @Override
6585     public boolean isCallerApplicationRestrictionsManagingPackage() {
6586         final int callingUid = mInjector.binderGetCallingUid();
6587         final int userHandle = UserHandle.getUserId(callingUid);
6588         synchronized (this) {
6589             final DevicePolicyData policy = getUserData(userHandle);
6590             if (policy.mApplicationRestrictionsManagingPackage == null) {
6591                 return false;
6592             }
6593
6594             try {
6595                 int uid = mContext.getPackageManager().getPackageUidAsUser(
6596                         policy.mApplicationRestrictionsManagingPackage, userHandle);
6597                 return uid == callingUid;
6598             } catch (NameNotFoundException e) {
6599                 return false;
6600             }
6601         }
6602     }
6603
6604     private void enforceCanManageApplicationRestrictions(ComponentName who) {
6605         if (who != null) {
6606             synchronized (this) {
6607                 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER);
6608             }
6609         } else if (!isCallerApplicationRestrictionsManagingPackage()) {
6610             throw new SecurityException(
6611                     "No admin component given, and caller cannot manage application restrictions "
6612                     + "for other apps.");
6613         }
6614     }
6615
6616     @Override
6617     public void setApplicationRestrictions(ComponentName who, String packageName, Bundle settings) {
6618         enforceCanManageApplicationRestrictions(who);
6619
6620         final UserHandle userHandle = mInjector.binderGetCallingUserHandle();
6621         final long id = mInjector.binderClearCallingIdentity();
6622         try {
6623             mUserManager.setApplicationRestrictions(packageName, settings, userHandle);
6624         } finally {
6625             mInjector.binderRestoreCallingIdentity(id);
6626         }
6627     }
6628
6629     @Override
6630     public void setTrustAgentConfiguration(ComponentName admin, ComponentName agent,
6631             PersistableBundle args, boolean parent) {
6632         if (!mHasFeature) {
6633             return;
6634         }
6635         Preconditions.checkNotNull(admin, "admin is null");
6636         Preconditions.checkNotNull(agent, "agent is null");
6637         final int userHandle = UserHandle.getCallingUserId();
6638         synchronized (this) {
6639             ActiveAdmin ap = getActiveAdminForCallerLocked(admin,
6640                     DeviceAdminInfo.USES_POLICY_DISABLE_KEYGUARD_FEATURES, parent);
6641             ap.trustAgentInfos.put(agent.flattenToString(), new TrustAgentInfo(args));
6642             saveSettingsLocked(userHandle);
6643         }
6644     }
6645
6646     @Override
6647     public List<PersistableBundle> getTrustAgentConfiguration(ComponentName admin,
6648             ComponentName agent, int userHandle, boolean parent) {
6649         if (!mHasFeature) {
6650             return null;
6651         }
6652         Preconditions.checkNotNull(agent, "agent null");
6653         enforceFullCrossUsersPermission(userHandle);
6654
6655         synchronized (this) {
6656             final String componentName = agent.flattenToString();
6657             if (admin != null) {
6658                 final ActiveAdmin ap = getActiveAdminUncheckedLocked(admin, userHandle, parent);
6659                 if (ap == null) return null;
6660                 TrustAgentInfo trustAgentInfo = ap.trustAgentInfos.get(componentName);
6661                 if (trustAgentInfo == null || trustAgentInfo.options == null) return null;
6662                 List<PersistableBundle> result = new ArrayList<>();
6663                 result.add(trustAgentInfo.options);
6664                 return result;
6665             }
6666
6667             // Return strictest policy for this user and profiles that are visible from this user.
6668             List<PersistableBundle> result = null;
6669             // Search through all admins that use KEYGUARD_DISABLE_TRUST_AGENTS and keep track
6670             // of the options. If any admin doesn't have options, discard options for the rest
6671             // and return null.
6672             List<ActiveAdmin> admins =
6673                     getActiveAdminsForLockscreenPoliciesLocked(userHandle, parent);
6674             boolean allAdminsHaveOptions = true;
6675             final int N = admins.size();
6676             for (int i = 0; i < N; i++) {
6677                 final ActiveAdmin active = admins.get(i);
6678
6679                 final boolean disablesTrust = (active.disabledKeyguardFeatures
6680                         & DevicePolicyManager.KEYGUARD_DISABLE_TRUST_AGENTS) != 0;
6681                 final TrustAgentInfo info = active.trustAgentInfos.get(componentName);
6682                 if (info != null && info.options != null && !info.options.isEmpty()) {
6683                     if (disablesTrust) {
6684                         if (result == null) {
6685                             result = new ArrayList<>();
6686                         }
6687                         result.add(info.options);
6688                     } else {
6689                         Log.w(LOG_TAG, "Ignoring admin " + active.info
6690                                 + " because it has trust options but doesn't declare "
6691                                 + "KEYGUARD_DISABLE_TRUST_AGENTS");
6692                     }
6693                 } else if (disablesTrust) {
6694                     allAdminsHaveOptions = false;
6695                     break;
6696                 }
6697             }
6698             return allAdminsHaveOptions ? result : null;
6699         }
6700     }
6701
6702     @Override
6703     public void setRestrictionsProvider(ComponentName who, ComponentName permissionProvider) {
6704         Preconditions.checkNotNull(who, "ComponentName is null");
6705         synchronized (this) {
6706             getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER);
6707
6708             int userHandle = UserHandle.getCallingUserId();
6709             DevicePolicyData userData = getUserData(userHandle);
6710             userData.mRestrictionsProvider = permissionProvider;
6711             saveSettingsLocked(userHandle);
6712         }
6713     }
6714
6715     @Override
6716     public ComponentName getRestrictionsProvider(int userHandle) {
6717         synchronized (this) {
6718             if (!isCallerWithSystemUid()) {
6719                 throw new SecurityException("Only the system can query the permission provider");
6720             }
6721             DevicePolicyData userData = getUserData(userHandle);
6722             return userData != null ? userData.mRestrictionsProvider : null;
6723         }
6724     }
6725
6726     @Override
6727     public void addCrossProfileIntentFilter(ComponentName who, IntentFilter filter, int flags) {
6728         Preconditions.checkNotNull(who, "ComponentName is null");
6729         int callingUserId = UserHandle.getCallingUserId();
6730         synchronized (this) {
6731             getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER);
6732
6733             long id = mInjector.binderClearCallingIdentity();
6734             try {
6735                 UserInfo parent = mUserManager.getProfileParent(callingUserId);
6736                 if (parent == null) {
6737                     Slog.e(LOG_TAG, "Cannot call addCrossProfileIntentFilter if there is no "
6738                             + "parent");
6739                     return;
6740                 }
6741                 if ((flags & DevicePolicyManager.FLAG_PARENT_CAN_ACCESS_MANAGED) != 0) {
6742                     mIPackageManager.addCrossProfileIntentFilter(
6743                             filter, who.getPackageName(), callingUserId, parent.id, 0);
6744                 }
6745                 if ((flags & DevicePolicyManager.FLAG_MANAGED_CAN_ACCESS_PARENT) != 0) {
6746                     mIPackageManager.addCrossProfileIntentFilter(filter, who.getPackageName(),
6747                             parent.id, callingUserId, 0);
6748                 }
6749             } catch (RemoteException re) {
6750                 // Shouldn't happen
6751             } finally {
6752                 mInjector.binderRestoreCallingIdentity(id);
6753             }
6754         }
6755     }
6756
6757     @Override
6758     public void clearCrossProfileIntentFilters(ComponentName who) {
6759         Preconditions.checkNotNull(who, "ComponentName is null");
6760         int callingUserId = UserHandle.getCallingUserId();
6761         synchronized (this) {
6762             getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER);
6763             long id = mInjector.binderClearCallingIdentity();
6764             try {
6765                 UserInfo parent = mUserManager.getProfileParent(callingUserId);
6766                 if (parent == null) {
6767                     Slog.e(LOG_TAG, "Cannot call clearCrossProfileIntentFilter if there is no "
6768                             + "parent");
6769                     return;
6770                 }
6771                 // Removing those that go from the managed profile to the parent.
6772                 mIPackageManager.clearCrossProfileIntentFilters(
6773                         callingUserId, who.getPackageName());
6774                 // And those that go from the parent to the managed profile.
6775                 // If we want to support multiple managed profiles, we will have to only remove
6776                 // those that have callingUserId as their target.
6777                 mIPackageManager.clearCrossProfileIntentFilters(parent.id, who.getPackageName());
6778             } catch (RemoteException re) {
6779                 // Shouldn't happen
6780             } finally {
6781                 mInjector.binderRestoreCallingIdentity(id);
6782             }
6783         }
6784     }
6785
6786     /**
6787      * @return true if all packages in enabledPackages are either in the list
6788      * permittedList or are a system app.
6789      */
6790     private boolean checkPackagesInPermittedListOrSystem(List<String> enabledPackages,
6791             List<String> permittedList, int userIdToCheck) {
6792         long id = mInjector.binderClearCallingIdentity();
6793         try {
6794             // If we have an enabled packages list for a managed profile the packages
6795             // we should check are installed for the parent user.
6796             UserInfo user = getUserInfo(userIdToCheck);
6797             if (user.isManagedProfile()) {
6798                 userIdToCheck = user.profileGroupId;
6799             }
6800
6801             for (String enabledPackage : enabledPackages) {
6802                 boolean systemService = false;
6803                 try {
6804                     ApplicationInfo applicationInfo = mIPackageManager.getApplicationInfo(
6805                             enabledPackage, PackageManager.GET_UNINSTALLED_PACKAGES, userIdToCheck);
6806                     systemService = (applicationInfo.flags & ApplicationInfo.FLAG_SYSTEM) != 0;
6807                 } catch (RemoteException e) {
6808                     Log.i(LOG_TAG, "Can't talk to package managed", e);
6809                 }
6810                 if (!systemService && !permittedList.contains(enabledPackage)) {
6811                     return false;
6812                 }
6813             }
6814         } finally {
6815             mInjector.binderRestoreCallingIdentity(id);
6816         }
6817         return true;
6818     }
6819
6820     private AccessibilityManager getAccessibilityManagerForUser(int userId) {
6821         // Not using AccessibilityManager.getInstance because that guesses
6822         // at the user you require based on callingUid and caches for a given
6823         // process.
6824         IBinder iBinder = ServiceManager.getService(Context.ACCESSIBILITY_SERVICE);
6825         IAccessibilityManager service = iBinder == null
6826                 ? null : IAccessibilityManager.Stub.asInterface(iBinder);
6827         return new AccessibilityManager(mContext, service, userId);
6828     }
6829
6830     @Override
6831     public boolean setPermittedAccessibilityServices(ComponentName who, List packageList) {
6832         if (!mHasFeature) {
6833             return false;
6834         }
6835         Preconditions.checkNotNull(who, "ComponentName is null");
6836
6837         if (packageList != null) {
6838             int userId = UserHandle.getCallingUserId();
6839             List<AccessibilityServiceInfo> enabledServices = null;
6840             long id = mInjector.binderClearCallingIdentity();
6841             try {
6842                 UserInfo user = getUserInfo(userId);
6843                 if (user.isManagedProfile()) {
6844                     userId = user.profileGroupId;
6845                 }
6846                 AccessibilityManager accessibilityManager = getAccessibilityManagerForUser(userId);
6847                 enabledServices = accessibilityManager.getEnabledAccessibilityServiceList(
6848                         AccessibilityServiceInfo.FEEDBACK_ALL_MASK);
6849             } finally {
6850                 mInjector.binderRestoreCallingIdentity(id);
6851             }
6852
6853             if (enabledServices != null) {
6854                 List<String> enabledPackages = new ArrayList<String>();
6855                 for (AccessibilityServiceInfo service : enabledServices) {
6856                     enabledPackages.add(service.getResolveInfo().serviceInfo.packageName);
6857                 }
6858                 if (!checkPackagesInPermittedListOrSystem(enabledPackages, packageList,
6859                         userId)) {
6860                     Slog.e(LOG_TAG, "Cannot set permitted accessibility services, "
6861                             + "because it contains already enabled accesibility services.");
6862                     return false;
6863                 }
6864             }
6865         }
6866
6867         synchronized (this) {
6868             ActiveAdmin admin = getActiveAdminForCallerLocked(who,
6869                     DeviceAdminInfo.USES_POLICY_PROFILE_OWNER);
6870             admin.permittedAccessiblityServices = packageList;
6871             saveSettingsLocked(UserHandle.getCallingUserId());
6872         }
6873         return true;
6874     }
6875
6876     @Override
6877     public List getPermittedAccessibilityServices(ComponentName who) {
6878         if (!mHasFeature) {
6879             return null;
6880         }
6881         Preconditions.checkNotNull(who, "ComponentName is null");
6882
6883         synchronized (this) {
6884             ActiveAdmin admin = getActiveAdminForCallerLocked(who,
6885                     DeviceAdminInfo.USES_POLICY_PROFILE_OWNER);
6886             return admin.permittedAccessiblityServices;
6887         }
6888     }
6889
6890     @Override
6891     public List getPermittedAccessibilityServicesForUser(int userId) {
6892         if (!mHasFeature) {
6893             return null;
6894         }
6895         synchronized (this) {
6896             List<String> result = null;
6897             // If we have multiple profiles we return the intersection of the
6898             // permitted lists. This can happen in cases where we have a device
6899             // and profile owner.
6900             int[] profileIds = mUserManager.getProfileIdsWithDisabled(userId);
6901             for (int profileId : profileIds) {
6902                 // Just loop though all admins, only device or profiles
6903                 // owners can have permitted lists set.
6904                 DevicePolicyData policy = getUserDataUnchecked(profileId);
6905                 final int N = policy.mAdminList.size();
6906                 for (int j = 0; j < N; j++) {
6907                     ActiveAdmin admin = policy.mAdminList.get(j);
6908                     List<String> fromAdmin = admin.permittedAccessiblityServices;
6909                     if (fromAdmin != null) {
6910                         if (result == null) {
6911                             result = new ArrayList<>(fromAdmin);
6912                         } else {
6913                             result.retainAll(fromAdmin);
6914                         }
6915                     }
6916                 }
6917             }
6918
6919             // If we have a permitted list add all system accessibility services.
6920             if (result != null) {
6921                 long id = mInjector.binderClearCallingIdentity();
6922                 try {
6923                     UserInfo user = getUserInfo(userId);
6924                     if (user.isManagedProfile()) {
6925                         userId = user.profileGroupId;
6926                     }
6927                     AccessibilityManager accessibilityManager =
6928                             getAccessibilityManagerForUser(userId);
6929                     List<AccessibilityServiceInfo> installedServices =
6930                             accessibilityManager.getInstalledAccessibilityServiceList();
6931
6932                     if (installedServices != null) {
6933                         for (AccessibilityServiceInfo service : installedServices) {
6934                             ServiceInfo serviceInfo = service.getResolveInfo().serviceInfo;
6935                             ApplicationInfo applicationInfo = serviceInfo.applicationInfo;
6936                             if ((applicationInfo.flags & ApplicationInfo.FLAG_SYSTEM) != 0) {
6937                                 result.add(serviceInfo.packageName);
6938                             }
6939                         }
6940                     }
6941                 } finally {
6942                     mInjector.binderRestoreCallingIdentity(id);
6943                 }
6944             }
6945
6946             return result;
6947         }
6948     }
6949
6950     @Override
6951     public boolean isAccessibilityServicePermittedByAdmin(ComponentName who, String packageName,
6952             int userHandle) {
6953         if (!mHasFeature) {
6954             return true;
6955         }
6956         Preconditions.checkNotNull(who, "ComponentName is null");
6957         Preconditions.checkStringNotEmpty(packageName, "packageName is null");
6958         if (!isCallerWithSystemUid()){
6959             throw new SecurityException(
6960                     "Only the system can query if an accessibility service is disabled by admin");
6961         }
6962         synchronized (this) {
6963             ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle);
6964             if (admin == null) {
6965                 return false;
6966             }
6967             if (admin.permittedAccessiblityServices == null) {
6968                 return true;
6969             }
6970             return checkPackagesInPermittedListOrSystem(Arrays.asList(packageName),
6971                     admin.permittedAccessiblityServices, userHandle);
6972         }
6973     }
6974
6975     private boolean checkCallerIsCurrentUserOrProfile() {
6976         int callingUserId = UserHandle.getCallingUserId();
6977         long token = mInjector.binderClearCallingIdentity();
6978         try {
6979             UserInfo currentUser;
6980             UserInfo callingUser = getUserInfo(callingUserId);
6981             try {
6982                 currentUser = mInjector.getIActivityManager().getCurrentUser();
6983             } catch (RemoteException e) {
6984                 Slog.e(LOG_TAG, "Failed to talk to activity managed.", e);
6985                 return false;
6986             }
6987
6988             if (callingUser.isManagedProfile() && callingUser.profileGroupId != currentUser.id) {
6989                 Slog.e(LOG_TAG, "Cannot set permitted input methods for managed profile "
6990                         + "of a user that isn't the foreground user.");
6991                 return false;
6992             }
6993             if (!callingUser.isManagedProfile() && callingUserId != currentUser.id ) {
6994                 Slog.e(LOG_TAG, "Cannot set permitted input methods "
6995                         + "of a user that isn't the foreground user.");
6996                 return false;
6997             }
6998         } finally {
6999             mInjector.binderRestoreCallingIdentity(token);
7000         }
7001         return true;
7002     }
7003
7004     @Override
7005     public boolean setPermittedInputMethods(ComponentName who, List packageList) {
7006         if (!mHasFeature) {
7007             return false;
7008         }
7009         Preconditions.checkNotNull(who, "ComponentName is null");
7010
7011         // TODO When InputMethodManager supports per user calls remove
7012         //      this restriction.
7013         if (!checkCallerIsCurrentUserOrProfile()) {
7014             return false;
7015         }
7016
7017         if (packageList != null) {
7018             // InputMethodManager fetches input methods for current user.
7019             // So this can only be set when calling user is the current user
7020             // or parent is current user in case of managed profiles.
7021             InputMethodManager inputMethodManager =
7022                     mContext.getSystemService(InputMethodManager.class);
7023             List<InputMethodInfo> enabledImes = inputMethodManager.getEnabledInputMethodList();
7024
7025             if (enabledImes != null) {
7026                 List<String> enabledPackages = new ArrayList<String>();
7027                 for (InputMethodInfo ime : enabledImes) {
7028                     enabledPackages.add(ime.getPackageName());
7029                 }
7030                 if (!checkPackagesInPermittedListOrSystem(enabledPackages, packageList,
7031                         mInjector.binderGetCallingUserHandle().getIdentifier())) {
7032                     Slog.e(LOG_TAG, "Cannot set permitted input methods, "
7033                             + "because it contains already enabled input method.");
7034                     return false;
7035                 }
7036             }
7037         }
7038
7039         synchronized (this) {
7040             ActiveAdmin admin = getActiveAdminForCallerLocked(who,
7041                     DeviceAdminInfo.USES_POLICY_PROFILE_OWNER);
7042             admin.permittedInputMethods = packageList;
7043             saveSettingsLocked(UserHandle.getCallingUserId());
7044         }
7045         return true;
7046     }
7047
7048     @Override
7049     public List getPermittedInputMethods(ComponentName who) {
7050         if (!mHasFeature) {
7051             return null;
7052         }
7053         Preconditions.checkNotNull(who, "ComponentName is null");
7054
7055         synchronized (this) {
7056             ActiveAdmin admin = getActiveAdminForCallerLocked(who,
7057                     DeviceAdminInfo.USES_POLICY_PROFILE_OWNER);
7058             return admin.permittedInputMethods;
7059         }
7060     }
7061
7062     @Override
7063     public List getPermittedInputMethodsForCurrentUser() {
7064         UserInfo currentUser;
7065         try {
7066             currentUser = mInjector.getIActivityManager().getCurrentUser();
7067         } catch (RemoteException e) {
7068             Slog.e(LOG_TAG, "Failed to make remote calls to get current user", e);
7069             // Activity managed is dead, just allow all IMEs
7070             return null;
7071         }
7072
7073         int userId = currentUser.id;
7074         synchronized (this) {
7075             List<String> result = null;
7076             // If we have multiple profiles we return the intersection of the
7077             // permitted lists. This can happen in cases where we have a device
7078             // and profile owner.
7079             int[] profileIds = mUserManager.getProfileIdsWithDisabled(userId);
7080             for (int profileId : profileIds) {
7081                 // Just loop though all admins, only device or profiles
7082                 // owners can have permitted lists set.
7083                 DevicePolicyData policy = getUserDataUnchecked(profileId);
7084                 final int N = policy.mAdminList.size();
7085                 for (int j = 0; j < N; j++) {
7086                     ActiveAdmin admin = policy.mAdminList.get(j);
7087                     List<String> fromAdmin = admin.permittedInputMethods;
7088                     if (fromAdmin != null) {
7089                         if (result == null) {
7090                             result = new ArrayList<String>(fromAdmin);
7091                         } else {
7092                             result.retainAll(fromAdmin);
7093                         }
7094                     }
7095                 }
7096             }
7097
7098             // If we have a permitted list add all system input methods.
7099             if (result != null) {
7100                 InputMethodManager inputMethodManager =
7101                         mContext.getSystemService(InputMethodManager.class);
7102                 List<InputMethodInfo> imes = inputMethodManager.getInputMethodList();
7103                 long id = mInjector.binderClearCallingIdentity();
7104                 try {
7105                     if (imes != null) {
7106                         for (InputMethodInfo ime : imes) {
7107                             ServiceInfo serviceInfo = ime.getServiceInfo();
7108                             ApplicationInfo applicationInfo = serviceInfo.applicationInfo;
7109                             if ((applicationInfo.flags & ApplicationInfo.FLAG_SYSTEM) != 0) {
7110                                 result.add(serviceInfo.packageName);
7111                             }
7112                         }
7113                     }
7114                 } finally {
7115                     mInjector.binderRestoreCallingIdentity(id);
7116                 }
7117             }
7118             return result;
7119         }
7120     }
7121
7122     @Override
7123     public boolean isInputMethodPermittedByAdmin(ComponentName who, String packageName,
7124             int userHandle) {
7125         if (!mHasFeature) {
7126             return true;
7127         }
7128         Preconditions.checkNotNull(who, "ComponentName is null");
7129         Preconditions.checkStringNotEmpty(packageName, "packageName is null");
7130         if (!isCallerWithSystemUid()) {
7131             throw new SecurityException(
7132                     "Only the system can query if an input method is disabled by admin");
7133         }
7134         synchronized (this) {
7135             ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle);
7136             if (admin == null) {
7137                 return false;
7138             }
7139             if (admin.permittedInputMethods == null) {
7140                 return true;
7141             }
7142             return checkPackagesInPermittedListOrSystem(Arrays.asList(packageName),
7143                     admin.permittedInputMethods, userHandle);
7144         }
7145     }
7146
7147     private void sendAdminEnabledBroadcastLocked(int userHandle) {
7148         DevicePolicyData policyData = getUserData(userHandle);
7149         if (policyData.mAdminBroadcastPending) {
7150             // Send the initialization data to profile owner and delete the data
7151             ActiveAdmin admin = getProfileOwnerAdminLocked(userHandle);
7152             if (admin != null) {
7153                 PersistableBundle initBundle = policyData.mInitBundle;
7154                 sendAdminCommandLocked(admin, DeviceAdminReceiver.ACTION_DEVICE_ADMIN_ENABLED,
7155                         initBundle == null ? null : new Bundle(initBundle), null);
7156             }
7157             policyData.mInitBundle = null;
7158             policyData.mAdminBroadcastPending = false;
7159             saveSettingsLocked(userHandle);
7160         }
7161     }
7162
7163     @Override
7164     public UserHandle createAndManageUser(ComponentName admin, String name,
7165             ComponentName profileOwner, PersistableBundle adminExtras, int flags) {
7166         Preconditions.checkNotNull(admin, "admin is null");
7167         Preconditions.checkNotNull(profileOwner, "profileOwner is null");
7168         if (!admin.getPackageName().equals(profileOwner.getPackageName())) {
7169             throw new IllegalArgumentException("profileOwner " + profileOwner + " and admin "
7170                     + admin + " are not in the same package");
7171         }
7172         // Only allow the system user to use this method
7173         if (!mInjector.binderGetCallingUserHandle().isSystem()) {
7174             throw new SecurityException("createAndManageUser was called from non-system user");
7175         }
7176         if (!mInjector.userManagerIsSplitSystemUser()
7177                 && (flags & DevicePolicyManager.MAKE_USER_EPHEMERAL) != 0) {
7178             throw new IllegalArgumentException(
7179                     "Ephemeral users are only supported on systems with a split system user.");
7180         }
7181         // Create user.
7182         UserHandle user = null;
7183         synchronized (this) {
7184             getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER);
7185
7186             final long id = mInjector.binderClearCallingIdentity();
7187             try {
7188                 int userInfoFlags = 0;
7189                 if ((flags & DevicePolicyManager.MAKE_USER_EPHEMERAL) != 0) {
7190                     userInfoFlags |= UserInfo.FLAG_EPHEMERAL;
7191                 }
7192                 UserInfo userInfo = mUserManagerInternal.createUserEvenWhenDisallowed(name,
7193                         userInfoFlags);
7194                 if (userInfo != null) {
7195                     user = userInfo.getUserHandle();
7196                 }
7197             } finally {
7198                 mInjector.binderRestoreCallingIdentity(id);
7199             }
7200         }
7201         if (user == null) {
7202             return null;
7203         }
7204         // Set admin.
7205         final long id = mInjector.binderClearCallingIdentity();
7206         try {
7207             final String adminPkg = admin.getPackageName();
7208
7209             final int userHandle = user.getIdentifier();
7210             try {
7211                 // Install the profile owner if not present.
7212                 if (!mIPackageManager.isPackageAvailable(adminPkg, userHandle)) {
7213                     mIPackageManager.installExistingPackageAsUser(adminPkg, userHandle);
7214                 }
7215             } catch (RemoteException e) {
7216                 Slog.e(LOG_TAG, "Failed to make remote calls for createAndManageUser, "
7217                         + "removing created user", e);
7218                 mUserManager.removeUser(user.getIdentifier());
7219                 return null;
7220             }
7221
7222             setActiveAdmin(profileOwner, true, userHandle);
7223             // User is not started yet, the broadcast by setActiveAdmin will not be received.
7224             // So we store adminExtras for broadcasting when the user starts for first time.
7225             synchronized(this) {
7226                 DevicePolicyData policyData = getUserData(userHandle);
7227                 policyData.mInitBundle = adminExtras;
7228                 policyData.mAdminBroadcastPending = true;
7229                 saveSettingsLocked(userHandle);
7230             }
7231             final String ownerName = getProfileOwnerName(Process.myUserHandle().getIdentifier());
7232             setProfileOwner(profileOwner, ownerName, userHandle);
7233
7234             if ((flags & DevicePolicyManager.SKIP_SETUP_WIZARD) != 0) {
7235                 Settings.Secure.putIntForUser(mContext.getContentResolver(),
7236                         Settings.Secure.USER_SETUP_COMPLETE, 1, userHandle);
7237             }
7238
7239             return user;
7240         } finally {
7241             mInjector.binderRestoreCallingIdentity(id);
7242         }
7243     }
7244
7245     @Override
7246     public boolean removeUser(ComponentName who, UserHandle userHandle) {
7247         Preconditions.checkNotNull(who, "ComponentName is null");
7248         synchronized (this) {
7249             getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER);
7250
7251             long id = mInjector.binderClearCallingIdentity();
7252             try {
7253                 return mUserManager.removeUser(userHandle.getIdentifier());
7254             } finally {
7255                 mInjector.binderRestoreCallingIdentity(id);
7256             }
7257         }
7258     }
7259
7260     @Override
7261     public boolean switchUser(ComponentName who, UserHandle userHandle) {
7262         Preconditions.checkNotNull(who, "ComponentName is null");
7263         synchronized (this) {
7264             getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER);
7265
7266             long id = mInjector.binderClearCallingIdentity();
7267             try {
7268                 int userId = UserHandle.USER_SYSTEM;
7269                 if (userHandle != null) {
7270                     userId = userHandle.getIdentifier();
7271                 }
7272                 return mInjector.getIActivityManager().switchUser(userId);
7273             } catch (RemoteException e) {
7274                 Log.e(LOG_TAG, "Couldn't switch user", e);
7275                 return false;
7276             } finally {
7277                 mInjector.binderRestoreCallingIdentity(id);
7278             }
7279         }
7280     }
7281
7282     @Override
7283     public Bundle getApplicationRestrictions(ComponentName who, String packageName) {
7284         enforceCanManageApplicationRestrictions(who);
7285
7286         final UserHandle userHandle = mInjector.binderGetCallingUserHandle();
7287         final long id = mInjector.binderClearCallingIdentity();
7288         try {
7289            Bundle bundle = mUserManager.getApplicationRestrictions(packageName, userHandle);
7290            // if no restrictions were saved, mUserManager.getApplicationRestrictions
7291            // returns null, but DPM method should return an empty Bundle as per JavaDoc
7292            return bundle != null ? bundle : Bundle.EMPTY;
7293         } finally {
7294             mInjector.binderRestoreCallingIdentity(id);
7295         }
7296     }
7297
7298     @Override
7299     public String[] setPackagesSuspended(ComponentName who, String[] packageNames,
7300             boolean suspended) {
7301         Preconditions.checkNotNull(who, "ComponentName is null");
7302         int callingUserId = UserHandle.getCallingUserId();
7303         synchronized (this) {
7304             getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER);
7305
7306             long id = mInjector.binderClearCallingIdentity();
7307             try {
7308                 return mIPackageManager.setPackagesSuspendedAsUser(
7309                         packageNames, suspended, callingUserId);
7310             } catch (RemoteException re) {
7311                 // Shouldn't happen.
7312                 Slog.e(LOG_TAG, "Failed talking to the package manager", re);
7313             } finally {
7314                 mInjector.binderRestoreCallingIdentity(id);
7315             }
7316             return packageNames;
7317         }
7318     }
7319
7320     @Override
7321     public boolean isPackageSuspended(ComponentName who, String packageName) {
7322         Preconditions.checkNotNull(who, "ComponentName is null");
7323         int callingUserId = UserHandle.getCallingUserId();
7324         synchronized (this) {
7325             getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER);
7326
7327             long id = mInjector.binderClearCallingIdentity();
7328             try {
7329                 return mIPackageManager.isPackageSuspendedForUser(packageName, callingUserId);
7330             } catch (RemoteException re) {
7331                 // Shouldn't happen.
7332                 Slog.e(LOG_TAG, "Failed talking to the package manager", re);
7333             } finally {
7334                 mInjector.binderRestoreCallingIdentity(id);
7335             }
7336             return false;
7337         }
7338     }
7339
7340     @Override
7341     public void setUserRestriction(ComponentName who, String key, boolean enabledFromThisOwner) {
7342         Preconditions.checkNotNull(who, "ComponentName is null");
7343         if (!UserRestrictionsUtils.isValidRestriction(key)) {
7344             return;
7345         }
7346
7347         final int userHandle = mInjector.userHandleGetCallingUserId();
7348         synchronized (this) {
7349             ActiveAdmin activeAdmin =
7350                     getActiveAdminForCallerLocked(who,
7351                             DeviceAdminInfo.USES_POLICY_PROFILE_OWNER);
7352             final boolean isDeviceOwner = isDeviceOwner(who, userHandle);
7353             if (isDeviceOwner) {
7354                 if (!UserRestrictionsUtils.canDeviceOwnerChange(key)) {
7355                     throw new SecurityException("Device owner cannot set user restriction " + key);
7356                 }
7357             } else { // profile owner
7358                 if (!UserRestrictionsUtils.canProfileOwnerChange(key, userHandle)) {
7359                     throw new SecurityException("Profile owner cannot set user restriction " + key);
7360                 }
7361             }
7362
7363             // Save the restriction to ActiveAdmin.
7364             activeAdmin.ensureUserRestrictions().putBoolean(key, enabledFromThisOwner);
7365             saveSettingsLocked(userHandle);
7366
7367             pushUserRestrictions(userHandle);
7368
7369             sendChangedNotification(userHandle);
7370         }
7371     }
7372
7373     private void pushUserRestrictions(int userId) {
7374         synchronized (this) {
7375             final Bundle global;
7376             final Bundle local = new Bundle();
7377             if (mOwners.isDeviceOwnerUserId(userId)) {
7378                 global = new Bundle();
7379
7380                 final ActiveAdmin deviceOwner = getDeviceOwnerAdminLocked();
7381                 if (deviceOwner == null) {
7382                     return; // Shouldn't happen.
7383                 }
7384
7385                 UserRestrictionsUtils.sortToGlobalAndLocal(deviceOwner.userRestrictions,
7386                         global, local);
7387                 // DO can disable camera globally.
7388                 if (deviceOwner.disableCamera) {
7389                     global.putBoolean(UserManager.DISALLOW_CAMERA, true);
7390                 }
7391             } else {
7392                 global = null;
7393
7394                 ActiveAdmin profileOwner = getProfileOwnerAdminLocked(userId);
7395                 if (profileOwner != null) {
7396                     UserRestrictionsUtils.merge(local, profileOwner.userRestrictions);
7397                 }
7398             }
7399             // Also merge in *local* camera restriction.
7400             if (getCameraDisabled(/* who= */ null,
7401                     userId, /* mergeDeviceOwnerRestriction= */ false)) {
7402                 local.putBoolean(UserManager.DISALLOW_CAMERA, true);
7403             }
7404             mUserManagerInternal.setDevicePolicyUserRestrictions(userId, local, global);
7405         }
7406     }
7407
7408     @Override
7409     public Bundle getUserRestrictions(ComponentName who) {
7410         if (!mHasFeature) {
7411             return null;
7412         }
7413         Preconditions.checkNotNull(who, "ComponentName is null");
7414         synchronized (this) {
7415             final ActiveAdmin activeAdmin = getActiveAdminForCallerLocked(who,
7416                     DeviceAdminInfo.USES_POLICY_PROFILE_OWNER);
7417             return activeAdmin.userRestrictions;
7418         }
7419     }
7420
7421     @Override
7422     public boolean setApplicationHidden(ComponentName who, String packageName,
7423             boolean hidden) {
7424         Preconditions.checkNotNull(who, "ComponentName is null");
7425         int callingUserId = UserHandle.getCallingUserId();
7426         synchronized (this) {
7427             getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER);
7428
7429             long id = mInjector.binderClearCallingIdentity();
7430             try {
7431                 return mIPackageManager.setApplicationHiddenSettingAsUser(
7432                         packageName, hidden, callingUserId);
7433             } catch (RemoteException re) {
7434                 // shouldn't happen
7435                 Slog.e(LOG_TAG, "Failed to setApplicationHiddenSetting", re);
7436             } finally {
7437                 mInjector.binderRestoreCallingIdentity(id);
7438             }
7439             return false;
7440         }
7441     }
7442
7443     @Override
7444     public boolean isApplicationHidden(ComponentName who, String packageName) {
7445         Preconditions.checkNotNull(who, "ComponentName is null");
7446         int callingUserId = UserHandle.getCallingUserId();
7447         synchronized (this) {
7448             getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER);
7449
7450             long id = mInjector.binderClearCallingIdentity();
7451             try {
7452                 return mIPackageManager.getApplicationHiddenSettingAsUser(
7453                         packageName, callingUserId);
7454             } catch (RemoteException re) {
7455                 // shouldn't happen
7456                 Slog.e(LOG_TAG, "Failed to getApplicationHiddenSettingAsUser", re);
7457             } finally {
7458                 mInjector.binderRestoreCallingIdentity(id);
7459             }
7460             return false;
7461         }
7462     }
7463
7464     @Override
7465     public void enableSystemApp(ComponentName who, String packageName) {
7466         Preconditions.checkNotNull(who, "ComponentName is null");
7467         synchronized (this) {
7468             // This API can only be called by an active device admin,
7469             // so try to retrieve it to check that the caller is one.
7470             getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER);
7471
7472             int userId = UserHandle.getCallingUserId();
7473             long id = mInjector.binderClearCallingIdentity();
7474
7475             try {
7476                 if (VERBOSE_LOG) {
7477                     Slog.v(LOG_TAG, "installing " + packageName + " for "
7478                             + userId);
7479                 }
7480
7481                 int parentUserId = getProfileParentId(userId);
7482                 if (!isSystemApp(mIPackageManager, packageName, parentUserId)) {
7483                     throw new IllegalArgumentException("Only system apps can be enabled this way.");
7484                 }
7485
7486                 // Install the app.
7487                 mIPackageManager.installExistingPackageAsUser(packageName, userId);
7488
7489             } catch (RemoteException re) {
7490                 // shouldn't happen
7491                 Slog.wtf(LOG_TAG, "Failed to install " + packageName, re);
7492             } finally {
7493                 mInjector.binderRestoreCallingIdentity(id);
7494             }
7495         }
7496     }
7497
7498     @Override
7499     public int enableSystemAppWithIntent(ComponentName who, Intent intent) {
7500         Preconditions.checkNotNull(who, "ComponentName is null");
7501         synchronized (this) {
7502             // This API can only be called by an active device admin,
7503             // so try to retrieve it to check that the caller is one.
7504             getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER);
7505
7506             int userId = UserHandle.getCallingUserId();
7507             long id = mInjector.binderClearCallingIdentity();
7508
7509             try {
7510                 int parentUserId = getProfileParentId(userId);
7511                 List<ResolveInfo> activitiesToEnable = mIPackageManager
7512                         .queryIntentActivities(intent,
7513                                 intent.resolveTypeIfNeeded(mContext.getContentResolver()),
7514                                 PackageManager.MATCH_DIRECT_BOOT_AWARE
7515                                         | PackageManager.MATCH_DIRECT_BOOT_UNAWARE,
7516                                 parentUserId)
7517                         .getList();
7518
7519                 if (VERBOSE_LOG) {
7520                     Slog.d(LOG_TAG, "Enabling system activities: " + activitiesToEnable);
7521                 }
7522                 int numberOfAppsInstalled = 0;
7523                 if (activitiesToEnable != null) {
7524                     for (ResolveInfo info : activitiesToEnable) {
7525                         if (info.activityInfo != null) {
7526                             String packageName = info.activityInfo.packageName;
7527                             if (isSystemApp(mIPackageManager, packageName, parentUserId)) {
7528                                 numberOfAppsInstalled++;
7529                                 mIPackageManager.installExistingPackageAsUser(packageName, userId);
7530                             } else {
7531                                 Slog.d(LOG_TAG, "Not enabling " + packageName + " since is not a"
7532                                         + " system app");
7533                             }
7534                         }
7535                     }
7536                 }
7537                 return numberOfAppsInstalled;
7538             } catch (RemoteException e) {
7539                 // shouldn't happen
7540                 Slog.wtf(LOG_TAG, "Failed to resolve intent for: " + intent);
7541                 return 0;
7542             } finally {
7543                 mInjector.binderRestoreCallingIdentity(id);
7544             }
7545         }
7546     }
7547
7548     private boolean isSystemApp(IPackageManager pm, String packageName, int userId)
7549             throws RemoteException {
7550         ApplicationInfo appInfo = pm.getApplicationInfo(packageName, GET_UNINSTALLED_PACKAGES,
7551                 userId);
7552         if (appInfo == null) {
7553             throw new IllegalArgumentException("The application " + packageName +
7554                     " is not present on this device");
7555         }
7556         return (appInfo.flags & ApplicationInfo.FLAG_SYSTEM) != 0;
7557     }
7558
7559     @Override
7560     public void setAccountManagementDisabled(ComponentName who, String accountType,
7561             boolean disabled) {
7562         if (!mHasFeature) {
7563             return;
7564         }
7565         Preconditions.checkNotNull(who, "ComponentName is null");
7566         synchronized (this) {
7567             ActiveAdmin ap = getActiveAdminForCallerLocked(who,
7568                     DeviceAdminInfo.USES_POLICY_PROFILE_OWNER);
7569             if (disabled) {
7570                 ap.accountTypesWithManagementDisabled.add(accountType);
7571             } else {
7572                 ap.accountTypesWithManagementDisabled.remove(accountType);
7573             }
7574             saveSettingsLocked(UserHandle.getCallingUserId());
7575         }
7576     }
7577
7578     @Override
7579     public String[] getAccountTypesWithManagementDisabled() {
7580         return getAccountTypesWithManagementDisabledAsUser(UserHandle.getCallingUserId());
7581     }
7582
7583     @Override
7584     public String[] getAccountTypesWithManagementDisabledAsUser(int userId) {
7585         enforceFullCrossUsersPermission(userId);
7586         if (!mHasFeature) {
7587             return null;
7588         }
7589         synchronized (this) {
7590             DevicePolicyData policy = getUserData(userId);
7591             final int N = policy.mAdminList.size();
7592             ArraySet<String> resultSet = new ArraySet<>();
7593             for (int i = 0; i < N; i++) {
7594                 ActiveAdmin admin = policy.mAdminList.get(i);
7595                 resultSet.addAll(admin.accountTypesWithManagementDisabled);
7596             }
7597             return resultSet.toArray(new String[resultSet.size()]);
7598         }
7599     }
7600
7601     @Override
7602     public void setUninstallBlocked(ComponentName who, String packageName,
7603             boolean uninstallBlocked) {
7604         Preconditions.checkNotNull(who, "ComponentName is null");
7605         final int userId = UserHandle.getCallingUserId();
7606         synchronized (this) {
7607             getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER);
7608
7609             long id = mInjector.binderClearCallingIdentity();
7610             try {
7611                 mIPackageManager.setBlockUninstallForUser(packageName, uninstallBlocked, userId);
7612             } catch (RemoteException re) {
7613                 // Shouldn't happen.
7614                 Slog.e(LOG_TAG, "Failed to setBlockUninstallForUser", re);
7615             } finally {
7616                 mInjector.binderRestoreCallingIdentity(id);
7617             }
7618         }
7619     }
7620
7621     @Override
7622     public boolean isUninstallBlocked(ComponentName who, String packageName) {
7623         // This function should return true if and only if the package is blocked by
7624         // setUninstallBlocked(). It should still return false for other cases of blocks, such as
7625         // when the package is a system app, or when it is an active device admin.
7626         final int userId = UserHandle.getCallingUserId();
7627
7628         synchronized (this) {
7629             if (who != null) {
7630                 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER);
7631             }
7632
7633             long id = mInjector.binderClearCallingIdentity();
7634             try {
7635                 return mIPackageManager.getBlockUninstallForUser(packageName, userId);
7636             } catch (RemoteException re) {
7637                 // Shouldn't happen.
7638                 Slog.e(LOG_TAG, "Failed to getBlockUninstallForUser", re);
7639             } finally {
7640                 mInjector.binderRestoreCallingIdentity(id);
7641             }
7642         }
7643         return false;
7644     }
7645
7646     @Override
7647     public void setCrossProfileCallerIdDisabled(ComponentName who, boolean disabled) {
7648         if (!mHasFeature) {
7649             return;
7650         }
7651         Preconditions.checkNotNull(who, "ComponentName is null");
7652         synchronized (this) {
7653             ActiveAdmin admin = getActiveAdminForCallerLocked(who,
7654                     DeviceAdminInfo.USES_POLICY_PROFILE_OWNER);
7655             if (admin.disableCallerId != disabled) {
7656                 admin.disableCallerId = disabled;
7657                 saveSettingsLocked(mInjector.userHandleGetCallingUserId());
7658             }
7659         }
7660     }
7661
7662     @Override
7663     public boolean getCrossProfileCallerIdDisabled(ComponentName who) {
7664         if (!mHasFeature) {
7665             return false;
7666         }
7667         Preconditions.checkNotNull(who, "ComponentName is null");
7668         synchronized (this) {
7669             ActiveAdmin admin = getActiveAdminForCallerLocked(who,
7670                     DeviceAdminInfo.USES_POLICY_PROFILE_OWNER);
7671             return admin.disableCallerId;
7672         }
7673     }
7674
7675     @Override
7676     public boolean getCrossProfileCallerIdDisabledForUser(int userId) {
7677         enforceCrossUsersPermission(userId);
7678         synchronized (this) {
7679             ActiveAdmin admin = getProfileOwnerAdminLocked(userId);
7680             return (admin != null) ? admin.disableCallerId : false;
7681         }
7682     }
7683
7684     @Override
7685     public void setCrossProfileContactsSearchDisabled(ComponentName who, boolean disabled) {
7686         if (!mHasFeature) {
7687             return;
7688         }
7689         Preconditions.checkNotNull(who, "ComponentName is null");
7690         synchronized (this) {
7691             ActiveAdmin admin = getActiveAdminForCallerLocked(who,
7692                     DeviceAdminInfo.USES_POLICY_PROFILE_OWNER);
7693             if (admin.disableContactsSearch != disabled) {
7694                 admin.disableContactsSearch = disabled;
7695                 saveSettingsLocked(mInjector.userHandleGetCallingUserId());
7696             }
7697         }
7698     }
7699
7700     @Override
7701     public boolean getCrossProfileContactsSearchDisabled(ComponentName who) {
7702         if (!mHasFeature) {
7703             return false;
7704         }
7705         Preconditions.checkNotNull(who, "ComponentName is null");
7706         synchronized (this) {
7707             ActiveAdmin admin = getActiveAdminForCallerLocked(who,
7708                     DeviceAdminInfo.USES_POLICY_PROFILE_OWNER);
7709             return admin.disableContactsSearch;
7710         }
7711     }
7712
7713     @Override
7714     public boolean getCrossProfileContactsSearchDisabledForUser(int userId) {
7715         enforceCrossUsersPermission(userId);
7716         synchronized (this) {
7717             ActiveAdmin admin = getProfileOwnerAdminLocked(userId);
7718             return (admin != null) ? admin.disableContactsSearch : false;
7719         }
7720     }
7721
7722     @Override
7723     public void startManagedQuickContact(String actualLookupKey, long actualContactId,
7724             boolean isContactIdIgnored, long actualDirectoryId, Intent originalIntent) {
7725         final Intent intent = QuickContact.rebuildManagedQuickContactsIntent(actualLookupKey,
7726                 actualContactId, isContactIdIgnored, actualDirectoryId, originalIntent);
7727         final int callingUserId = UserHandle.getCallingUserId();
7728
7729         final long ident = mInjector.binderClearCallingIdentity();
7730         try {
7731             synchronized (this) {
7732                 final int managedUserId = getManagedUserId(callingUserId);
7733                 if (managedUserId < 0) {
7734                     return;
7735                 }
7736                 if (isCrossProfileQuickContactDisabled(managedUserId)) {
7737                     if (VERBOSE_LOG) {
7738                         Log.v(LOG_TAG,
7739                                 "Cross-profile contacts access disabled for user " + managedUserId);
7740                     }
7741                     return;
7742                 }
7743                 ContactsInternal.startQuickContactWithErrorToastForUser(
7744                         mContext, intent, new UserHandle(managedUserId));
7745             }
7746         } finally {
7747             mInjector.binderRestoreCallingIdentity(ident);
7748         }
7749     }
7750
7751     /**
7752      * @return true if cross-profile QuickContact is disabled
7753      */
7754     private boolean isCrossProfileQuickContactDisabled(int userId) {
7755         return getCrossProfileCallerIdDisabledForUser(userId)
7756                 && getCrossProfileContactsSearchDisabledForUser(userId);
7757     }
7758
7759     /**
7760      * @return the user ID of the managed user that is linked to the current user, if any.
7761      * Otherwise -1.
7762      */
7763     public int getManagedUserId(int callingUserId) {
7764         if (VERBOSE_LOG) {
7765             Log.v(LOG_TAG, "getManagedUserId: callingUserId=" + callingUserId);
7766         }
7767
7768         for (UserInfo ui : mUserManager.getProfiles(callingUserId)) {
7769             if (ui.id == callingUserId || !ui.isManagedProfile()) {
7770                 continue; // Caller user self, or not a managed profile.  Skip.
7771             }
7772             if (VERBOSE_LOG) {
7773                 Log.v(LOG_TAG, "Managed user=" + ui.id);
7774             }
7775             return ui.id;
7776         }
7777         if (VERBOSE_LOG) {
7778             Log.v(LOG_TAG, "Managed user not found.");
7779         }
7780         return -1;
7781     }
7782
7783     @Override
7784     public void setBluetoothContactSharingDisabled(ComponentName who, boolean disabled) {
7785         if (!mHasFeature) {
7786             return;
7787         }
7788         Preconditions.checkNotNull(who, "ComponentName is null");
7789         synchronized (this) {
7790             ActiveAdmin admin = getActiveAdminForCallerLocked(who,
7791                     DeviceAdminInfo.USES_POLICY_PROFILE_OWNER);
7792             if (admin.disableBluetoothContactSharing != disabled) {
7793                 admin.disableBluetoothContactSharing = disabled;
7794                 saveSettingsLocked(UserHandle.getCallingUserId());
7795             }
7796         }
7797     }
7798
7799     @Override
7800     public boolean getBluetoothContactSharingDisabled(ComponentName who) {
7801         if (!mHasFeature) {
7802             return false;
7803         }
7804         Preconditions.checkNotNull(who, "ComponentName is null");
7805         synchronized (this) {
7806             ActiveAdmin admin = getActiveAdminForCallerLocked(who,
7807                     DeviceAdminInfo.USES_POLICY_PROFILE_OWNER);
7808             return admin.disableBluetoothContactSharing;
7809         }
7810     }
7811
7812     @Override
7813     public boolean getBluetoothContactSharingDisabledForUser(int userId) {
7814         // TODO: Should there be a check to make sure this relationship is
7815         // within a profile group?
7816         // enforceSystemProcess("getCrossProfileCallerIdDisabled can only be called by system");
7817         synchronized (this) {
7818             ActiveAdmin admin = getProfileOwnerAdminLocked(userId);
7819             return (admin != null) ? admin.disableBluetoothContactSharing : false;
7820         }
7821     }
7822
7823     /**
7824      * Sets which packages may enter lock task mode.
7825      *
7826      * <p>This function can only be called by the device owner or alternatively by the profile owner
7827      * in case the user is affiliated.
7828      *
7829      * @param packages The list of packages allowed to enter lock task mode.
7830      */
7831     @Override
7832     public void setLockTaskPackages(ComponentName who, String[] packages)
7833             throws SecurityException {
7834         Preconditions.checkNotNull(who, "ComponentName is null");
7835         synchronized (this) {
7836             ActiveAdmin deviceOwner = getActiveAdminWithPolicyForUidLocked(
7837                 who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER, mInjector.binderGetCallingUid());
7838             ActiveAdmin profileOwner = getActiveAdminWithPolicyForUidLocked(
7839                 who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER, mInjector.binderGetCallingUid());
7840             if (deviceOwner != null || (profileOwner != null && isAffiliatedUser())) {
7841                 int userHandle = mInjector.userHandleGetCallingUserId();
7842                 setLockTaskPackagesLocked(userHandle, new ArrayList<>(Arrays.asList(packages)));
7843             } else {
7844                 throw new SecurityException("Admin " + who +
7845                     " is neither the device owner or affiliated user's profile owner.");
7846             }
7847         }
7848     }
7849
7850     private void setLockTaskPackagesLocked(int userHandle, List<String> packages) {
7851         DevicePolicyData policy = getUserData(userHandle);
7852         policy.mLockTaskPackages = packages;
7853
7854         // Store the settings persistently.
7855         saveSettingsLocked(userHandle);
7856         updateLockTaskPackagesLocked(packages, userHandle);
7857     }
7858
7859     /**
7860      * This function returns the list of components allowed to start the task lock mode.
7861      */
7862     @Override
7863     public String[] getLockTaskPackages(ComponentName who) {
7864         Preconditions.checkNotNull(who, "ComponentName is null");
7865         synchronized (this) {
7866             getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER);
7867             int userHandle = mInjector.binderGetCallingUserHandle().getIdentifier();
7868             final List<String> packages = getLockTaskPackagesLocked(userHandle);
7869             return packages.toArray(new String[packages.size()]);
7870         }
7871     }
7872
7873     private List<String> getLockTaskPackagesLocked(int userHandle) {
7874         final DevicePolicyData policy = getUserData(userHandle);
7875         return policy.mLockTaskPackages;
7876     }
7877
7878     /**
7879      * This function lets the caller know whether the given package is allowed to start the
7880      * lock task mode.
7881      * @param pkg The package to check
7882      */
7883     @Override
7884     public boolean isLockTaskPermitted(String pkg) {
7885         // Get current user's devicepolicy
7886         int uid = mInjector.binderGetCallingUid();
7887         int userHandle = UserHandle.getUserId(uid);
7888         DevicePolicyData policy = getUserData(userHandle);
7889         synchronized (this) {
7890             for (int i = 0; i < policy.mLockTaskPackages.size(); i++) {
7891                 String lockTaskPackage = policy.mLockTaskPackages.get(i);
7892
7893                 // If the given package equals one of the packages stored our list,
7894                 // we allow this package to start lock task mode.
7895                 if (lockTaskPackage.equals(pkg)) {
7896                     return true;
7897                 }
7898             }
7899         }
7900         return false;
7901     }
7902
7903     @Override
7904     public void notifyLockTaskModeChanged(boolean isEnabled, String pkg, int userHandle) {
7905         if (!isCallerWithSystemUid()) {
7906             throw new SecurityException("notifyLockTaskModeChanged can only be called by system");
7907         }
7908         synchronized (this) {
7909             final DevicePolicyData policy = getUserData(userHandle);
7910             Bundle adminExtras = new Bundle();
7911             adminExtras.putString(DeviceAdminReceiver.EXTRA_LOCK_TASK_PACKAGE, pkg);
7912             for (ActiveAdmin admin : policy.mAdminList) {
7913                 final boolean ownsDevice = isDeviceOwner(admin.info.getComponent(), userHandle);
7914                 final boolean ownsProfile = isProfileOwner(admin.info.getComponent(), userHandle);
7915                 if (ownsDevice || ownsProfile) {
7916                     if (isEnabled) {
7917                         sendAdminCommandLocked(admin, DeviceAdminReceiver.ACTION_LOCK_TASK_ENTERING,
7918                                 adminExtras, null);
7919                     } else {
7920                         sendAdminCommandLocked(admin, DeviceAdminReceiver.ACTION_LOCK_TASK_EXITING);
7921                     }
7922                 }
7923             }
7924         }
7925     }
7926
7927     @Override
7928     public void setGlobalSetting(ComponentName who, String setting, String value) {
7929         Preconditions.checkNotNull(who, "ComponentName is null");
7930
7931         synchronized (this) {
7932             getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER);
7933
7934             // Some settings are no supported any more. However we do not want to throw a
7935             // SecurityException to avoid breaking apps.
7936             if (GLOBAL_SETTINGS_DEPRECATED.contains(setting)) {
7937                 Log.i(LOG_TAG, "Global setting no longer supported: " + setting);
7938                 return;
7939             }
7940
7941             if (!GLOBAL_SETTINGS_WHITELIST.contains(setting)) {
7942                 throw new SecurityException(String.format(
7943                         "Permission denial: device owners cannot update %1$s", setting));
7944             }
7945
7946             if (Settings.Global.STAY_ON_WHILE_PLUGGED_IN.equals(setting)) {
7947                 // ignore if it contradicts an existing policy
7948                 long timeMs = getMaximumTimeToLock(
7949                         who, mInjector.userHandleGetCallingUserId(), /* parent */ false);
7950                 if (timeMs > 0 && timeMs < Integer.MAX_VALUE) {
7951                     return;
7952                 }
7953             }
7954
7955             long id = mInjector.binderClearCallingIdentity();
7956             try {
7957                 mInjector.settingsGlobalPutString(setting, value);
7958             } finally {
7959                 mInjector.binderRestoreCallingIdentity(id);
7960             }
7961         }
7962     }
7963
7964     @Override
7965     public void setSecureSetting(ComponentName who, String setting, String value) {
7966         Preconditions.checkNotNull(who, "ComponentName is null");
7967         int callingUserId = mInjector.userHandleGetCallingUserId();
7968
7969         synchronized (this) {
7970             getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER);
7971
7972             if (isDeviceOwner(who, callingUserId)) {
7973                 if (!SECURE_SETTINGS_DEVICEOWNER_WHITELIST.contains(setting)) {
7974                     throw new SecurityException(String.format(
7975                             "Permission denial: Device owners cannot update %1$s", setting));
7976                 }
7977             } else if (!SECURE_SETTINGS_WHITELIST.contains(setting)) {
7978                 throw new SecurityException(String.format(
7979                         "Permission denial: Profile owners cannot update %1$s", setting));
7980             }
7981
7982             long id = mInjector.binderClearCallingIdentity();
7983             try {
7984                 mInjector.settingsSecurePutStringForUser(setting, value, callingUserId);
7985             } finally {
7986                 mInjector.binderRestoreCallingIdentity(id);
7987             }
7988         }
7989     }
7990
7991     @Override
7992     public void setMasterVolumeMuted(ComponentName who, boolean on) {
7993         Preconditions.checkNotNull(who, "ComponentName is null");
7994         synchronized (this) {
7995             getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER);
7996             setUserRestriction(who, UserManager.DISALLLOW_UNMUTE_DEVICE, on);
7997         }
7998     }
7999
8000     @Override
8001     public boolean isMasterVolumeMuted(ComponentName who) {
8002         Preconditions.checkNotNull(who, "ComponentName is null");
8003         synchronized (this) {
8004             getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER);
8005
8006             AudioManager audioManager =
8007                     (AudioManager) mContext.getSystemService(Context.AUDIO_SERVICE);
8008             return audioManager.isMasterMute();
8009         }
8010     }
8011
8012     @Override
8013     public void setUserIcon(ComponentName who, Bitmap icon) {
8014         synchronized (this) {
8015             Preconditions.checkNotNull(who, "ComponentName is null");
8016             getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER);
8017
8018             int userId = UserHandle.getCallingUserId();
8019             long id = mInjector.binderClearCallingIdentity();
8020             try {
8021                 mUserManagerInternal.setUserIcon(userId, icon);
8022             } finally {
8023                 mInjector.binderRestoreCallingIdentity(id);
8024             }
8025         }
8026     }
8027
8028     @Override
8029     public boolean setKeyguardDisabled(ComponentName who, boolean disabled) {
8030         Preconditions.checkNotNull(who, "ComponentName is null");
8031         synchronized (this) {
8032             getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER);
8033         }
8034         final int userId = UserHandle.getCallingUserId();
8035
8036         long ident = mInjector.binderClearCallingIdentity();
8037         try {
8038             // disallow disabling the keyguard if a password is currently set
8039             if (disabled && mLockPatternUtils.isSecure(userId)) {
8040                 return false;
8041             }
8042             mLockPatternUtils.setLockScreenDisabled(disabled, userId);
8043         } finally {
8044             mInjector.binderRestoreCallingIdentity(ident);
8045         }
8046         return true;
8047     }
8048
8049     @Override
8050     public boolean setStatusBarDisabled(ComponentName who, boolean disabled) {
8051         int userId = UserHandle.getCallingUserId();
8052         synchronized (this) {
8053             getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER);
8054             DevicePolicyData policy = getUserData(userId);
8055             if (policy.mStatusBarDisabled != disabled) {
8056                 if (!setStatusBarDisabledInternal(disabled, userId)) {
8057                     return false;
8058                 }
8059                 policy.mStatusBarDisabled = disabled;
8060                 saveSettingsLocked(userId);
8061             }
8062         }
8063         return true;
8064     }
8065
8066     private boolean setStatusBarDisabledInternal(boolean disabled, int userId) {
8067         long ident = mInjector.binderClearCallingIdentity();
8068         try {
8069             IStatusBarService statusBarService = IStatusBarService.Stub.asInterface(
8070                     ServiceManager.checkService(Context.STATUS_BAR_SERVICE));
8071             if (statusBarService != null) {
8072                 int flags1 = disabled ? STATUS_BAR_DISABLE_MASK : StatusBarManager.DISABLE_NONE;
8073                 int flags2 = disabled ? STATUS_BAR_DISABLE2_MASK : StatusBarManager.DISABLE2_NONE;
8074                 statusBarService.disableForUser(flags1, mToken, mContext.getPackageName(), userId);
8075                 statusBarService.disable2ForUser(flags2, mToken, mContext.getPackageName(), userId);
8076                 return true;
8077             }
8078         } catch (RemoteException e) {
8079             Slog.e(LOG_TAG, "Failed to disable the status bar", e);
8080         } finally {
8081             mInjector.binderRestoreCallingIdentity(ident);
8082         }
8083         return false;
8084     }
8085
8086     /**
8087      * We need to update the internal state of whether a user has completed setup once. After
8088      * that, we ignore any changes that reset the Settings.Secure.USER_SETUP_COMPLETE changes
8089      * as we don't trust any apps that might try to reset it.
8090      * <p>
8091      * Unfortunately, we don't know which user's setup state was changed, so we write all of
8092      * them.
8093      */
8094     void updateUserSetupComplete() {
8095         List<UserInfo> users = mUserManager.getUsers(true);
8096         final int N = users.size();
8097         for (int i = 0; i < N; i++) {
8098             int userHandle = users.get(i).id;
8099             if (mInjector.settingsSecureGetIntForUser(Settings.Secure.USER_SETUP_COMPLETE, 0,
8100                     userHandle) != 0) {
8101                 DevicePolicyData policy = getUserData(userHandle);
8102                 if (!policy.mUserSetupComplete) {
8103                     policy.mUserSetupComplete = true;
8104                     synchronized (this) {
8105                         saveSettingsLocked(userHandle);
8106                     }
8107                 }
8108             }
8109         }
8110     }
8111
8112     private class SetupContentObserver extends ContentObserver {
8113
8114         private final Uri mUserSetupComplete = Settings.Secure.getUriFor(
8115                 Settings.Secure.USER_SETUP_COMPLETE);
8116         private final Uri mDeviceProvisioned = Settings.Global.getUriFor(
8117                 Settings.Global.DEVICE_PROVISIONED);
8118
8119         public SetupContentObserver(Handler handler) {
8120             super(handler);
8121         }
8122
8123         void register() {
8124             mInjector.registerContentObserver(mUserSetupComplete, false, this, UserHandle.USER_ALL);
8125             mInjector.registerContentObserver(mDeviceProvisioned, false, this, UserHandle.USER_ALL);
8126         }
8127
8128         @Override
8129         public void onChange(boolean selfChange, Uri uri) {
8130             if (mUserSetupComplete.equals(uri)) {
8131                 updateUserSetupComplete();
8132             } else if (mDeviceProvisioned.equals(uri)) {
8133                 synchronized (DevicePolicyManagerService.this) {
8134                     // Set PROPERTY_DEVICE_OWNER_PRESENT, for the SUW case where setting the property
8135                     // is delayed until device is marked as provisioned.
8136                     setDeviceOwnerSystemPropertyLocked();
8137                 }
8138             }
8139         }
8140     }
8141
8142     @VisibleForTesting
8143     final class LocalService extends DevicePolicyManagerInternal {
8144         private List<OnCrossProfileWidgetProvidersChangeListener> mWidgetProviderListeners;
8145
8146         @Override
8147         public List<String> getCrossProfileWidgetProviders(int profileId) {
8148             synchronized (DevicePolicyManagerService.this) {
8149                 if (mOwners == null) {
8150                     return Collections.emptyList();
8151                 }
8152                 ComponentName ownerComponent = mOwners.getProfileOwnerComponent(profileId);
8153                 if (ownerComponent == null) {
8154                     return Collections.emptyList();
8155                 }
8156
8157                 DevicePolicyData policy = getUserDataUnchecked(profileId);
8158                 ActiveAdmin admin = policy.mAdminMap.get(ownerComponent);
8159
8160                 if (admin == null || admin.crossProfileWidgetProviders == null
8161                         || admin.crossProfileWidgetProviders.isEmpty()) {
8162                     return Collections.emptyList();
8163                 }
8164
8165                 return admin.crossProfileWidgetProviders;
8166             }
8167         }
8168
8169         @Override
8170         public void addOnCrossProfileWidgetProvidersChangeListener(
8171                 OnCrossProfileWidgetProvidersChangeListener listener) {
8172             synchronized (DevicePolicyManagerService.this) {
8173                 if (mWidgetProviderListeners == null) {
8174                     mWidgetProviderListeners = new ArrayList<>();
8175                 }
8176                 if (!mWidgetProviderListeners.contains(listener)) {
8177                     mWidgetProviderListeners.add(listener);
8178                 }
8179             }
8180         }
8181
8182         @Override
8183         public boolean isActiveAdminWithPolicy(int uid, int reqPolicy) {
8184             synchronized(DevicePolicyManagerService.this) {
8185                 return getActiveAdminWithPolicyForUidLocked(null, reqPolicy, uid) != null;
8186             }
8187         }
8188
8189         private void notifyCrossProfileProvidersChanged(int userId, List<String> packages) {
8190             final List<OnCrossProfileWidgetProvidersChangeListener> listeners;
8191             synchronized (DevicePolicyManagerService.this) {
8192                 listeners = new ArrayList<>(mWidgetProviderListeners);
8193             }
8194             final int listenerCount = listeners.size();
8195             for (int i = 0; i < listenerCount; i++) {
8196                 OnCrossProfileWidgetProvidersChangeListener listener = listeners.get(i);
8197                 listener.onCrossProfileWidgetProvidersChanged(userId, packages);
8198             }
8199         }
8200
8201         @Override
8202         public Intent createPackageSuspendedDialogIntent(String packageName, int userId) {
8203             Intent intent = new Intent(Settings.ACTION_SHOW_ADMIN_SUPPORT_DETAILS);
8204             intent.putExtra(Intent.EXTRA_USER_ID, userId);
8205             intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
8206
8207             // This method is called from AM with its lock held, so don't take the DPMS lock.
8208             // b/29242568
8209
8210             ComponentName profileOwner = mOwners.getProfileOwnerComponent(userId);
8211             if (profileOwner != null) {
8212                 intent.putExtra(DevicePolicyManager.EXTRA_DEVICE_ADMIN, profileOwner);
8213                 return intent;
8214             }
8215
8216             final Pair<Integer, ComponentName> deviceOwner =
8217                     mOwners.getDeviceOwnerUserIdAndComponent();
8218             if (deviceOwner != null && deviceOwner.first == userId) {
8219                 intent.putExtra(DevicePolicyManager.EXTRA_DEVICE_ADMIN, deviceOwner.second);
8220                 return intent;
8221             }
8222
8223             // We're not specifying the device admin because there isn't one.
8224             return intent;
8225         }
8226     }
8227
8228     /**
8229      * Returns true if specified admin is allowed to limit passwords and has a
8230      * {@code passwordQuality} of at least {@code minPasswordQuality}
8231      */
8232     private static boolean isLimitPasswordAllowed(ActiveAdmin admin, int minPasswordQuality) {
8233         if (admin.passwordQuality < minPasswordQuality) {
8234             return false;
8235         }
8236         return admin.info.usesPolicy(DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD);
8237     }
8238
8239     @Override
8240     public void setSystemUpdatePolicy(ComponentName who, SystemUpdatePolicy policy) {
8241         if (policy != null && !policy.isValid()) {
8242             throw new IllegalArgumentException("Invalid system update policy.");
8243         }
8244         synchronized (this) {
8245             getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER);
8246             if (policy == null) {
8247                 mOwners.clearSystemUpdatePolicy();
8248             } else {
8249                 mOwners.setSystemUpdatePolicy(policy);
8250             }
8251             mOwners.writeDeviceOwner();
8252         }
8253         mContext.sendBroadcastAsUser(
8254                 new Intent(DevicePolicyManager.ACTION_SYSTEM_UPDATE_POLICY_CHANGED),
8255                 UserHandle.SYSTEM);
8256     }
8257
8258     @Override
8259     public SystemUpdatePolicy getSystemUpdatePolicy() {
8260         if (UserManager.isDeviceInDemoMode(mContext)) {
8261             // Pretending to have an automatic update policy when the device is in retail demo
8262             // mode. This will allow the device to download and install an ota without
8263             // any user interaction.
8264             return SystemUpdatePolicy.createAutomaticInstallPolicy();
8265         }
8266         synchronized (this) {
8267             SystemUpdatePolicy policy =  mOwners.getSystemUpdatePolicy();
8268             if (policy != null && !policy.isValid()) {
8269                 Slog.w(LOG_TAG, "Stored system update policy is invalid, return null instead.");
8270                 return null;
8271             }
8272             return policy;
8273         }
8274     }
8275
8276     /**
8277      * Checks if the caller of the method is the device owner app.
8278      *
8279      * @param callerUid UID of the caller.
8280      * @return true if the caller is the device owner app
8281      */
8282     @VisibleForTesting
8283     boolean isCallerDeviceOwner(int callerUid) {
8284         synchronized (this) {
8285             if (!mOwners.hasDeviceOwner()) {
8286                 return false;
8287             }
8288             if (UserHandle.getUserId(callerUid) != mOwners.getDeviceOwnerUserId()) {
8289                 return false;
8290             }
8291             final String deviceOwnerPackageName = mOwners.getDeviceOwnerComponent()
8292                     .getPackageName();
8293             final String[] pkgs = mContext.getPackageManager().getPackagesForUid(callerUid);
8294
8295             for (String pkg : pkgs) {
8296                 if (deviceOwnerPackageName.equals(pkg)) {
8297                     return true;
8298                 }
8299             }
8300         }
8301
8302         return false;
8303     }
8304
8305     @Override
8306     public void notifyPendingSystemUpdate(long updateReceivedTime) {
8307         mContext.enforceCallingOrSelfPermission(permission.NOTIFY_PENDING_SYSTEM_UPDATE,
8308                 "Only the system update service can broadcast update information");
8309
8310         if (UserHandle.getCallingUserId() != UserHandle.USER_SYSTEM) {
8311             Slog.w(LOG_TAG, "Only the system update service in the system user " +
8312                     "can broadcast update information.");
8313             return;
8314         }
8315         Intent intent = new Intent(DeviceAdminReceiver.ACTION_NOTIFY_PENDING_SYSTEM_UPDATE);
8316         intent.putExtra(DeviceAdminReceiver.EXTRA_SYSTEM_UPDATE_RECEIVED_TIME,
8317                 updateReceivedTime);
8318
8319         synchronized (this) {
8320             final String deviceOwnerPackage =
8321                     mOwners.hasDeviceOwner() ? mOwners.getDeviceOwnerComponent().getPackageName()
8322                             : null;
8323             if (deviceOwnerPackage == null) {
8324                 return;
8325             }
8326             final UserHandle deviceOwnerUser = new UserHandle(mOwners.getDeviceOwnerUserId());
8327
8328             ActivityInfo[] receivers = null;
8329             try {
8330                 receivers  = mContext.getPackageManager().getPackageInfo(
8331                         deviceOwnerPackage, PackageManager.GET_RECEIVERS).receivers;
8332             } catch (NameNotFoundException e) {
8333                 Log.e(LOG_TAG, "Cannot find device owner package", e);
8334             }
8335             if (receivers != null) {
8336                 long ident = mInjector.binderClearCallingIdentity();
8337                 try {
8338                     for (int i = 0; i < receivers.length; i++) {
8339                         if (permission.BIND_DEVICE_ADMIN.equals(receivers[i].permission)) {
8340                             intent.setComponent(new ComponentName(deviceOwnerPackage,
8341                                     receivers[i].name));
8342                             mContext.sendBroadcastAsUser(intent, deviceOwnerUser);
8343                         }
8344                     }
8345                 } finally {
8346                     mInjector.binderRestoreCallingIdentity(ident);
8347                 }
8348             }
8349         }
8350     }
8351
8352     @Override
8353     public void setPermissionPolicy(ComponentName admin, int policy) throws RemoteException {
8354         int userId = UserHandle.getCallingUserId();
8355         synchronized (this) {
8356             getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER);
8357             DevicePolicyData userPolicy = getUserData(userId);
8358             if (userPolicy.mPermissionPolicy != policy) {
8359                 userPolicy.mPermissionPolicy = policy;
8360                 saveSettingsLocked(userId);
8361             }
8362         }
8363     }
8364
8365     @Override
8366     public int getPermissionPolicy(ComponentName admin) throws RemoteException {
8367         int userId = UserHandle.getCallingUserId();
8368         synchronized (this) {
8369             DevicePolicyData userPolicy = getUserData(userId);
8370             return userPolicy.mPermissionPolicy;
8371         }
8372     }
8373
8374     @Override
8375     public boolean setPermissionGrantState(ComponentName admin, String packageName,
8376             String permission, int grantState) throws RemoteException {
8377         UserHandle user = mInjector.binderGetCallingUserHandle();
8378         synchronized (this) {
8379             getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER);
8380             long ident = mInjector.binderClearCallingIdentity();
8381             try {
8382                 if (getTargetSdk(packageName, user.getIdentifier())
8383                         < android.os.Build.VERSION_CODES.M) {
8384                     return false;
8385                 }
8386                 final PackageManager packageManager = mContext.getPackageManager();
8387                 switch (grantState) {
8388                     case DevicePolicyManager.PERMISSION_GRANT_STATE_GRANTED: {
8389                         packageManager.grantRuntimePermission(packageName, permission, user);
8390                         packageManager.updatePermissionFlags(permission, packageName,
8391                                 PackageManager.FLAG_PERMISSION_POLICY_FIXED,
8392                                 PackageManager.FLAG_PERMISSION_POLICY_FIXED, user);
8393                     } break;
8394
8395                     case DevicePolicyManager.PERMISSION_GRANT_STATE_DENIED: {
8396                         packageManager.revokeRuntimePermission(packageName,
8397                                 permission, user);
8398                         packageManager.updatePermissionFlags(permission, packageName,
8399                                 PackageManager.FLAG_PERMISSION_POLICY_FIXED,
8400                                 PackageManager.FLAG_PERMISSION_POLICY_FIXED, user);
8401                     } break;
8402
8403                     case DevicePolicyManager.PERMISSION_GRANT_STATE_DEFAULT: {
8404                         packageManager.updatePermissionFlags(permission, packageName,
8405                                 PackageManager.FLAG_PERMISSION_POLICY_FIXED, 0, user);
8406                     } break;
8407                 }
8408                 return true;
8409             } catch (SecurityException se) {
8410                 return false;
8411             } finally {
8412                 mInjector.binderRestoreCallingIdentity(ident);
8413             }
8414         }
8415     }
8416
8417     @Override
8418     public int getPermissionGrantState(ComponentName admin, String packageName,
8419             String permission) throws RemoteException {
8420         PackageManager packageManager = mContext.getPackageManager();
8421
8422         UserHandle user = mInjector.binderGetCallingUserHandle();
8423         synchronized (this) {
8424             getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER);
8425             long ident = mInjector.binderClearCallingIdentity();
8426             try {
8427                 int granted = mIPackageManager.checkPermission(permission,
8428                         packageName, user.getIdentifier());
8429                 int permFlags = packageManager.getPermissionFlags(permission, packageName, user);
8430                 if ((permFlags & PackageManager.FLAG_PERMISSION_POLICY_FIXED)
8431                         != PackageManager.FLAG_PERMISSION_POLICY_FIXED) {
8432                     // Not controlled by policy
8433                     return DevicePolicyManager.PERMISSION_GRANT_STATE_DEFAULT;
8434                 } else {
8435                     // Policy controlled so return result based on permission grant state
8436                     return granted == PackageManager.PERMISSION_GRANTED
8437                             ? DevicePolicyManager.PERMISSION_GRANT_STATE_GRANTED
8438                             : DevicePolicyManager.PERMISSION_GRANT_STATE_DENIED;
8439                 }
8440             } finally {
8441                 mInjector.binderRestoreCallingIdentity(ident);
8442             }
8443         }
8444     }
8445
8446     boolean isPackageInstalledForUser(String packageName, int userHandle) {
8447         try {
8448             PackageInfo pi = mInjector.getIPackageManager().getPackageInfo(packageName, 0,
8449                     userHandle);
8450             return (pi != null) && (pi.applicationInfo.flags != 0);
8451         } catch (RemoteException re) {
8452             throw new RuntimeException("Package manager has died", re);
8453         }
8454     }
8455
8456     @Override
8457     public boolean isProvisioningAllowed(String action) {
8458         if (!mHasFeature) {
8459             return false;
8460         }
8461
8462         final int callingUserId = mInjector.userHandleGetCallingUserId();
8463         if (DevicePolicyManager.ACTION_PROVISION_MANAGED_PROFILE.equals(action)) {
8464             if (!hasFeatureManagedUsers()) {
8465                 return false;
8466             }
8467             synchronized (this) {
8468                 if (mOwners.hasDeviceOwner()) {
8469                     if (!mInjector.userManagerIsSplitSystemUser()) {
8470                         // Only split-system-user systems support managed-profiles in combination with
8471                         // device-owner.
8472                         return false;
8473                     }
8474                     if (mOwners.getDeviceOwnerUserId() != UserHandle.USER_SYSTEM) {
8475                         // Only system device-owner supports managed-profiles. Non-system device-owner
8476                         // doesn't.
8477                         return false;
8478                     }
8479                     if (callingUserId == UserHandle.USER_SYSTEM) {
8480                         // Managed-profiles cannot be setup on the system user, only regular users.
8481                         return false;
8482                     }
8483                 }
8484             }
8485             if (getProfileOwner(callingUserId) != null) {
8486                 // Managed user cannot have a managed profile.
8487                 return false;
8488             }
8489             final long ident = mInjector.binderClearCallingIdentity();
8490             try {
8491                 if (!mUserManager.canAddMoreManagedProfiles(callingUserId, true)) {
8492                     return false;
8493                 }
8494             } finally {
8495                 mInjector.binderRestoreCallingIdentity(ident);
8496             }
8497             return true;
8498         } else if (DevicePolicyManager.ACTION_PROVISION_MANAGED_DEVICE.equals(action)) {
8499             return isDeviceOwnerProvisioningAllowed(callingUserId);
8500         } else if (DevicePolicyManager.ACTION_PROVISION_MANAGED_USER.equals(action)) {
8501             if (!hasFeatureManagedUsers()) {
8502                 return false;
8503             }
8504             if (!mInjector.userManagerIsSplitSystemUser()) {
8505                 // ACTION_PROVISION_MANAGED_USER only supported on split-user systems.
8506                 return false;
8507             }
8508             if (callingUserId == UserHandle.USER_SYSTEM) {
8509                 // System user cannot be a managed user.
8510                 return false;
8511             }
8512             if (hasUserSetupCompleted(callingUserId)) {
8513                 return false;
8514             }
8515             return true;
8516         } else if (DevicePolicyManager.ACTION_PROVISION_MANAGED_SHAREABLE_DEVICE.equals(action)) {
8517             if (!mInjector.userManagerIsSplitSystemUser()) {
8518                 // ACTION_PROVISION_MANAGED_SHAREABLE_DEVICE only supported on split-user systems.
8519                 return false;
8520             }
8521             return isDeviceOwnerProvisioningAllowed(callingUserId);
8522         }
8523         throw new IllegalArgumentException("Unknown provisioning action " + action);
8524     }
8525
8526     /*
8527      * The device owner can only be set before the setup phase of the primary user has completed,
8528      * except for adb command if no accounts or additional users are present on the device.
8529      */
8530     private synchronized @DeviceOwnerPreConditionCode int checkSetDeviceOwnerPreConditionLocked(
8531             @Nullable ComponentName owner, int deviceOwnerUserId, boolean isAdb) {
8532         if (mOwners.hasDeviceOwner()) {
8533             return CODE_HAS_DEVICE_OWNER;
8534         }
8535         if (mOwners.hasProfileOwner(deviceOwnerUserId)) {
8536             return CODE_USER_HAS_PROFILE_OWNER;
8537         }
8538         if (!mUserManager.isUserRunning(new UserHandle(deviceOwnerUserId))) {
8539             return CODE_USER_NOT_RUNNING;
8540         }
8541         if (isAdb) {
8542             // if shell command runs after user setup completed check device status. Otherwise, OK.
8543             if (hasUserSetupCompleted(UserHandle.USER_SYSTEM)) {
8544                 if (!mInjector.userManagerIsSplitSystemUser()) {
8545                     if (mUserManager.getUserCount() > 1) {
8546                         return CODE_NONSYSTEM_USER_EXISTS;
8547                     }
8548                     if (hasIncompatibleAccountsLocked(UserHandle.USER_SYSTEM, owner)) {
8549                         return CODE_ACCOUNTS_NOT_EMPTY;
8550                     }
8551                 } else {
8552                     // STOPSHIP Do proper check in split user mode
8553                 }
8554             }
8555             return CODE_OK;
8556         } else {
8557             if (!mInjector.userManagerIsSplitSystemUser()) {
8558                 // In non-split user mode, DO has to be user 0
8559                 if (deviceOwnerUserId != UserHandle.USER_SYSTEM) {
8560                     return CODE_NOT_SYSTEM_USER;
8561                 }
8562                 // In non-split user mode, only provision DO before setup wizard completes
8563                 if (hasUserSetupCompleted(UserHandle.USER_SYSTEM)) {
8564                     return CODE_USER_SETUP_COMPLETED;
8565                 }
8566             } else {
8567                 // STOPSHIP Do proper check in split user mode
8568             }
8569             return CODE_OK;
8570         }
8571     }
8572
8573     private boolean isDeviceOwnerProvisioningAllowed(int deviceOwnerUserId) {
8574         synchronized (this) {
8575             return CODE_OK == checkSetDeviceOwnerPreConditionLocked(
8576                     /* owner unknown */ null, deviceOwnerUserId, /* isAdb */ false);
8577         }
8578     }
8579
8580     private boolean hasFeatureManagedUsers() {
8581         try {
8582             return mIPackageManager.hasSystemFeature(PackageManager.FEATURE_MANAGED_USERS, 0);
8583         } catch (RemoteException e) {
8584             return false;
8585         }
8586     }
8587
8588     @Override
8589     public String getWifiMacAddress(ComponentName admin) {
8590         // Make sure caller has DO.
8591         synchronized (this) {
8592             getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER);
8593         }
8594
8595         final long ident = mInjector.binderClearCallingIdentity();
8596         try {
8597             final WifiInfo wifiInfo = mInjector.getWifiManager().getConnectionInfo();
8598             if (wifiInfo == null) {
8599                 return null;
8600             }
8601             return wifiInfo.hasRealMacAddress() ? wifiInfo.getMacAddress() : null;
8602         } finally {
8603             mInjector.binderRestoreCallingIdentity(ident);
8604         }
8605     }
8606
8607     /**
8608      * Returns the target sdk version number that the given packageName was built for
8609      * in the given user.
8610      */
8611     private int getTargetSdk(String packageName, int userId) {
8612         final ApplicationInfo ai;
8613         try {
8614             ai = mIPackageManager.getApplicationInfo(packageName, 0, userId);
8615             final int targetSdkVersion = ai == null ? 0 : ai.targetSdkVersion;
8616             return targetSdkVersion;
8617         } catch (RemoteException e) {
8618             // Shouldn't happen
8619             return 0;
8620         }
8621     }
8622
8623     @Override
8624     public boolean isManagedProfile(ComponentName admin) {
8625         synchronized (this) {
8626             getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER);
8627         }
8628         final int callingUserId = mInjector.userHandleGetCallingUserId();
8629         final UserInfo user = getUserInfo(callingUserId);
8630         return user != null && user.isManagedProfile();
8631     }
8632
8633     @Override
8634     public boolean isSystemOnlyUser(ComponentName admin) {
8635         synchronized (this) {
8636             getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER);
8637         }
8638         final int callingUserId = mInjector.userHandleGetCallingUserId();
8639         return UserManager.isSplitSystemUser() && callingUserId == UserHandle.USER_SYSTEM;
8640     }
8641
8642     @Override
8643     public void reboot(ComponentName admin) {
8644         Preconditions.checkNotNull(admin);
8645         // Make sure caller has DO.
8646         synchronized (this) {
8647             getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER);
8648         }
8649         long ident = mInjector.binderClearCallingIdentity();
8650         try {
8651             // Make sure there are no ongoing calls on the device.
8652             if (mTelephonyManager.getCallState() != TelephonyManager.CALL_STATE_IDLE) {
8653                 throw new IllegalStateException("Cannot be called with ongoing call on the device");
8654             }
8655             mInjector.powerManagerReboot(PowerManager.REBOOT_REQUESTED_BY_DEVICE_OWNER);
8656         } finally {
8657             mInjector.binderRestoreCallingIdentity(ident);
8658         }
8659     }
8660
8661     @Override
8662     public void setShortSupportMessage(@NonNull ComponentName who, CharSequence message) {
8663         if (!mHasFeature) {
8664             return;
8665         }
8666         Preconditions.checkNotNull(who, "ComponentName is null");
8667         final int userHandle = mInjector.userHandleGetCallingUserId();
8668         synchronized (this) {
8669             ActiveAdmin admin = getActiveAdminForUidLocked(who,
8670                     mInjector.binderGetCallingUid());
8671             if (!TextUtils.equals(admin.shortSupportMessage, message)) {
8672                 admin.shortSupportMessage = message;
8673                 saveSettingsLocked(userHandle);
8674             }
8675         }
8676     }
8677
8678     @Override
8679     public CharSequence getShortSupportMessage(@NonNull ComponentName who) {
8680         if (!mHasFeature) {
8681             return null;
8682         }
8683         Preconditions.checkNotNull(who, "ComponentName is null");
8684         synchronized (this) {
8685             ActiveAdmin admin = getActiveAdminForUidLocked(who,
8686                     mInjector.binderGetCallingUid());
8687             return admin.shortSupportMessage;
8688         }
8689     }
8690
8691     @Override
8692     public void setLongSupportMessage(@NonNull ComponentName who, CharSequence message) {
8693         if (!mHasFeature) {
8694             return;
8695         }
8696         Preconditions.checkNotNull(who, "ComponentName is null");
8697         final int userHandle = mInjector.userHandleGetCallingUserId();
8698         synchronized (this) {
8699             ActiveAdmin admin = getActiveAdminForUidLocked(who,
8700                     mInjector.binderGetCallingUid());
8701             if (!TextUtils.equals(admin.longSupportMessage, message)) {
8702                 admin.longSupportMessage = message;
8703                 saveSettingsLocked(userHandle);
8704             }
8705         }
8706     }
8707
8708     @Override
8709     public CharSequence getLongSupportMessage(@NonNull ComponentName who) {
8710         if (!mHasFeature) {
8711             return null;
8712         }
8713         Preconditions.checkNotNull(who, "ComponentName is null");
8714         synchronized (this) {
8715             ActiveAdmin admin = getActiveAdminForUidLocked(who,
8716                     mInjector.binderGetCallingUid());
8717             return admin.longSupportMessage;
8718         }
8719     }
8720
8721     @Override
8722     public CharSequence getShortSupportMessageForUser(@NonNull ComponentName who, int userHandle) {
8723         if (!mHasFeature) {
8724             return null;
8725         }
8726         Preconditions.checkNotNull(who, "ComponentName is null");
8727         if (!isCallerWithSystemUid()) {
8728             throw new SecurityException("Only the system can query support message for user");
8729         }
8730         synchronized (this) {
8731             ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle);
8732             if (admin != null) {
8733                 return admin.shortSupportMessage;
8734             }
8735         }
8736         return null;
8737     }
8738
8739     @Override
8740     public CharSequence getLongSupportMessageForUser(@NonNull ComponentName who, int userHandle) {
8741         if (!mHasFeature) {
8742             return null;
8743         }
8744         Preconditions.checkNotNull(who, "ComponentName is null");
8745         if (!isCallerWithSystemUid()) {
8746             throw new SecurityException("Only the system can query support message for user");
8747         }
8748         synchronized (this) {
8749             ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle);
8750             if (admin != null) {
8751                 return admin.longSupportMessage;
8752             }
8753         }
8754         return null;
8755     }
8756
8757     @Override
8758     public void setOrganizationColor(@NonNull ComponentName who, int color) {
8759         if (!mHasFeature) {
8760             return;
8761         }
8762         Preconditions.checkNotNull(who, "ComponentName is null");
8763         final int userHandle = mInjector.userHandleGetCallingUserId();
8764         enforceManagedProfile(userHandle, "set organization color");
8765         synchronized (this) {
8766             ActiveAdmin admin = getActiveAdminForCallerLocked(who,
8767                     DeviceAdminInfo.USES_POLICY_PROFILE_OWNER);
8768             admin.organizationColor = color;
8769             saveSettingsLocked(userHandle);
8770         }
8771     }
8772
8773     @Override
8774     public void setOrganizationColorForUser(int color, int userId) {
8775         if (!mHasFeature) {
8776             return;
8777         }
8778         enforceFullCrossUsersPermission(userId);
8779         enforceManageUsers();
8780         enforceManagedProfile(userId, "set organization color");
8781         synchronized (this) {
8782             ActiveAdmin admin = getProfileOwnerAdminLocked(userId);
8783             admin.organizationColor = color;
8784             saveSettingsLocked(userId);
8785         }
8786     }
8787
8788     @Override
8789     public int getOrganizationColor(@NonNull ComponentName who) {
8790         if (!mHasFeature) {
8791             return ActiveAdmin.DEF_ORGANIZATION_COLOR;
8792         }
8793         Preconditions.checkNotNull(who, "ComponentName is null");
8794         enforceManagedProfile(mInjector.userHandleGetCallingUserId(), "get organization color");
8795         synchronized (this) {
8796             ActiveAdmin admin = getActiveAdminForCallerLocked(who,
8797                     DeviceAdminInfo.USES_POLICY_PROFILE_OWNER);
8798             return admin.organizationColor;
8799         }
8800     }
8801
8802     @Override
8803     public int getOrganizationColorForUser(int userHandle) {
8804         if (!mHasFeature) {
8805             return ActiveAdmin.DEF_ORGANIZATION_COLOR;
8806         }
8807         enforceFullCrossUsersPermission(userHandle);
8808         enforceManagedProfile(userHandle, "get organization color");
8809         synchronized (this) {
8810             ActiveAdmin profileOwner = getProfileOwnerAdminLocked(userHandle);
8811             return (profileOwner != null)
8812                     ? profileOwner.organizationColor
8813                     : ActiveAdmin.DEF_ORGANIZATION_COLOR;
8814         }
8815     }
8816
8817     @Override
8818     public void setOrganizationName(@NonNull ComponentName who, CharSequence text) {
8819         if (!mHasFeature) {
8820             return;
8821         }
8822         Preconditions.checkNotNull(who, "ComponentName is null");
8823         final int userHandle = mInjector.userHandleGetCallingUserId();
8824         enforceManagedProfile(userHandle, "set organization name");
8825         synchronized (this) {
8826             ActiveAdmin admin = getActiveAdminForCallerLocked(who,
8827                     DeviceAdminInfo.USES_POLICY_PROFILE_OWNER);
8828             if (!TextUtils.equals(admin.organizationName, text)) {
8829                 admin.organizationName = (text == null || text.length() == 0)
8830                         ? null : text.toString();
8831                 saveSettingsLocked(userHandle);
8832             }
8833         }
8834     }
8835
8836     @Override
8837     public CharSequence getOrganizationName(@NonNull ComponentName who) {
8838         if (!mHasFeature) {
8839             return null;
8840         }
8841         Preconditions.checkNotNull(who, "ComponentName is null");
8842         enforceManagedProfile(mInjector.userHandleGetCallingUserId(), "get organization name");
8843         synchronized(this) {
8844             ActiveAdmin admin = getActiveAdminForCallerLocked(who,
8845                     DeviceAdminInfo.USES_POLICY_PROFILE_OWNER);
8846             return admin.organizationName;
8847         }
8848     }
8849
8850     @Override
8851     public CharSequence getOrganizationNameForUser(int userHandle) {
8852         if (!mHasFeature) {
8853             return null;
8854         }
8855         enforceFullCrossUsersPermission(userHandle);
8856         enforceManagedProfile(userHandle, "get organization name");
8857         synchronized (this) {
8858             ActiveAdmin profileOwner = getProfileOwnerAdminLocked(userHandle);
8859             return (profileOwner != null)
8860                     ? profileOwner.organizationName
8861                     : null;
8862         }
8863     }
8864
8865     @Override
8866     public void setAffiliationIds(ComponentName admin, List<String> ids) {
8867         final Set<String> affiliationIds = new ArraySet<String>(ids);
8868         final int callingUserId = mInjector.userHandleGetCallingUserId();
8869
8870         synchronized (this) {
8871             getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER);
8872             getUserData(callingUserId).mAffiliationIds = affiliationIds;
8873             saveSettingsLocked(callingUserId);
8874             if (callingUserId != UserHandle.USER_SYSTEM && isDeviceOwner(admin, callingUserId)) {
8875                 // Affiliation ids specified by the device owner are additionally stored in
8876                 // UserHandle.USER_SYSTEM's DevicePolicyData.
8877                 getUserData(UserHandle.USER_SYSTEM).mAffiliationIds = affiliationIds;
8878                 saveSettingsLocked(UserHandle.USER_SYSTEM);
8879             }
8880         }
8881     }
8882
8883     @Override
8884     public boolean isAffiliatedUser() {
8885         final int callingUserId = mInjector.userHandleGetCallingUserId();
8886
8887         synchronized (this) {
8888             if (mOwners.getDeviceOwnerUserId() == callingUserId) {
8889                 // The user that the DO is installed on is always affiliated.
8890                 return true;
8891             }
8892             final ComponentName profileOwner = getProfileOwner(callingUserId);
8893             if (profileOwner == null
8894                     || !profileOwner.getPackageName().equals(mOwners.getDeviceOwnerPackageName())) {
8895                 return false;
8896             }
8897             final Set<String> userAffiliationIds = getUserData(callingUserId).mAffiliationIds;
8898             final Set<String> deviceAffiliationIds =
8899                     getUserData(UserHandle.USER_SYSTEM).mAffiliationIds;
8900             for (String id : userAffiliationIds) {
8901                 if (deviceAffiliationIds.contains(id)) {
8902                     return true;
8903                 }
8904             }
8905         }
8906         return false;
8907     }
8908
8909     private synchronized void disableSecurityLoggingIfNotCompliant() {
8910         if (!isDeviceOwnerManagedSingleUserDevice()) {
8911             mInjector.securityLogSetLoggingEnabledProperty(false);
8912             Slog.w(LOG_TAG, "Security logging turned off as it's no longer a single user device.");
8913         }
8914     }
8915
8916     @Override
8917     public void setSecurityLoggingEnabled(ComponentName admin, boolean enabled) {
8918         Preconditions.checkNotNull(admin);
8919         ensureDeviceOwnerManagingSingleUser(admin);
8920
8921         synchronized (this) {
8922             if (enabled == mInjector.securityLogGetLoggingEnabledProperty()) {
8923                 return;
8924             }
8925             mInjector.securityLogSetLoggingEnabledProperty(enabled);
8926             if (enabled) {
8927                 mSecurityLogMonitor.start();
8928             } else {
8929                 mSecurityLogMonitor.stop();
8930             }
8931         }
8932     }
8933
8934     @Override
8935     public boolean isSecurityLoggingEnabled(ComponentName admin) {
8936         Preconditions.checkNotNull(admin);
8937         synchronized (this) {
8938             getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER);
8939             return mInjector.securityLogGetLoggingEnabledProperty();
8940         }
8941     }
8942
8943     @Override
8944     public ParceledListSlice<SecurityEvent> retrievePreRebootSecurityLogs(ComponentName admin) {
8945         Preconditions.checkNotNull(admin);
8946         ensureDeviceOwnerManagingSingleUser(admin);
8947
8948         if (!mContext.getResources().getBoolean(R.bool.config_supportPreRebootSecurityLogs)) {
8949             return null;
8950         }
8951
8952         ArrayList<SecurityEvent> output = new ArrayList<SecurityEvent>();
8953         try {
8954             SecurityLog.readPreviousEvents(output);
8955             return new ParceledListSlice<SecurityEvent>(output);
8956         } catch (IOException e) {
8957             Slog.w(LOG_TAG, "Fail to read previous events" , e);
8958             return new ParceledListSlice<SecurityEvent>(Collections.<SecurityEvent>emptyList());
8959         }
8960     }
8961
8962     @Override
8963     public ParceledListSlice<SecurityEvent> retrieveSecurityLogs(ComponentName admin) {
8964         Preconditions.checkNotNull(admin);
8965         ensureDeviceOwnerManagingSingleUser(admin);
8966
8967         List<SecurityEvent> logs = mSecurityLogMonitor.retrieveLogs();
8968         return logs != null ? new ParceledListSlice<SecurityEvent>(logs) : null;
8969     }
8970
8971     private void enforceCanManageDeviceAdmin() {
8972         mContext.enforceCallingOrSelfPermission(android.Manifest.permission.MANAGE_DEVICE_ADMINS,
8973                 null);
8974     }
8975
8976     private void enforceCanManageProfileAndDeviceOwners() {
8977         mContext.enforceCallingOrSelfPermission(
8978                 android.Manifest.permission.MANAGE_PROFILE_AND_DEVICE_OWNERS, null);
8979     }
8980
8981     @Override
8982     public boolean isUninstallInQueue(final String packageName) {
8983         enforceCanManageDeviceAdmin();
8984         final int userId = mInjector.userHandleGetCallingUserId();
8985         Pair<String, Integer> packageUserPair = new Pair<>(packageName, userId);
8986         synchronized (this) {
8987             return mPackagesToRemove.contains(packageUserPair);
8988         }
8989     }
8990
8991     @Override
8992     public void uninstallPackageWithActiveAdmins(final String packageName) {
8993         enforceCanManageDeviceAdmin();
8994         Preconditions.checkArgument(!TextUtils.isEmpty(packageName));
8995
8996         final int userId = mInjector.userHandleGetCallingUserId();
8997
8998         enforceUserUnlocked(userId);
8999
9000         final ComponentName profileOwner = getProfileOwner(userId);
9001         if (profileOwner != null && packageName.equals(profileOwner.getPackageName())) {
9002             throw new IllegalArgumentException("Cannot uninstall a package with a profile owner");
9003         }
9004
9005         final ComponentName deviceOwner = getDeviceOwnerComponent(/* callingUserOnly= */ false);
9006         if (getDeviceOwnerUserId() == userId && deviceOwner != null
9007                 && packageName.equals(deviceOwner.getPackageName())) {
9008             throw new IllegalArgumentException("Cannot uninstall a package with a device owner");
9009         }
9010
9011         final Pair<String, Integer> packageUserPair = new Pair<>(packageName, userId);
9012         synchronized (this) {
9013             mPackagesToRemove.add(packageUserPair);
9014         }
9015
9016         // All active admins on the user.
9017         final List<ComponentName> allActiveAdmins = getActiveAdmins(userId);
9018
9019         // Active admins in the target package.
9020         final List<ComponentName> packageActiveAdmins = new ArrayList<>();
9021         if (allActiveAdmins != null) {
9022             for (ComponentName activeAdmin : allActiveAdmins) {
9023                 if (packageName.equals(activeAdmin.getPackageName())) {
9024                     packageActiveAdmins.add(activeAdmin);
9025                     removeActiveAdmin(activeAdmin, userId);
9026                 }
9027             }
9028         }
9029         if (packageActiveAdmins.size() == 0) {
9030             startUninstallIntent(packageName, userId);
9031         } else {
9032             mHandler.postDelayed(new Runnable() {
9033                 @Override
9034                 public void run() {
9035                     for (ComponentName activeAdmin : packageActiveAdmins) {
9036                         removeAdminArtifacts(activeAdmin, userId);
9037                     }
9038                     startUninstallIntent(packageName, userId);
9039                 }
9040             }, DEVICE_ADMIN_DEACTIVATE_TIMEOUT); // Start uninstall after timeout anyway.
9041         }
9042     }
9043
9044     @Override
9045     public boolean isDeviceProvisioned() {
9046         return !TextUtils.isEmpty(mInjector.systemPropertiesGet(PROPERTY_DEVICE_OWNER_PRESENT));
9047     }
9048
9049     private void removePackageIfRequired(final String packageName, final int userId) {
9050         if (!packageHasActiveAdmins(packageName, userId)) {
9051             // Will not do anything if uninstall was not requested or was already started.
9052             startUninstallIntent(packageName, userId);
9053         }
9054     }
9055
9056     private void startUninstallIntent(final String packageName, final int userId) {
9057         final Pair<String, Integer> packageUserPair = new Pair<>(packageName, userId);
9058         synchronized (this) {
9059             if (!mPackagesToRemove.contains(packageUserPair)) {
9060                 // Do nothing if uninstall was not requested or was already started.
9061                 return;
9062             }
9063             mPackagesToRemove.remove(packageUserPair);
9064         }
9065         try {
9066             if (mInjector.getIPackageManager().getPackageInfo(packageName, 0, userId) == null) {
9067                 // Package does not exist. Nothing to do.
9068                 return;
9069             }
9070         } catch (RemoteException re) {
9071             Log.e(LOG_TAG, "Failure talking to PackageManager while getting package info");
9072         }
9073
9074         try { // force stop the package before uninstalling
9075             mInjector.getIActivityManager().forceStopPackage(packageName, userId);
9076         } catch (RemoteException re) {
9077             Log.e(LOG_TAG, "Failure talking to ActivityManager while force stopping package");
9078         }
9079         final Uri packageURI = Uri.parse("package:" + packageName);
9080         final Intent uninstallIntent = new Intent(Intent.ACTION_UNINSTALL_PACKAGE, packageURI);
9081         uninstallIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
9082         mContext.startActivityAsUser(uninstallIntent, UserHandle.of(userId));
9083     }
9084
9085     /**
9086      * Removes the admin from the policy. Ideally called after the admin's
9087      * {@link DeviceAdminReceiver#onDisabled(Context, Intent)} has been successfully completed.
9088      *
9089      * @param adminReceiver The admin to remove
9090      * @param userHandle The user for which this admin has to be removed.
9091      */
9092     private void removeAdminArtifacts(final ComponentName adminReceiver, final int userHandle) {
9093         synchronized (this) {
9094             final ActiveAdmin admin = getActiveAdminUncheckedLocked(adminReceiver, userHandle);
9095             if (admin == null) {
9096                 return;
9097             }
9098             final DevicePolicyData policy = getUserData(userHandle);
9099             final boolean doProxyCleanup = admin.info.usesPolicy(
9100                     DeviceAdminInfo.USES_POLICY_SETS_GLOBAL_PROXY);
9101             policy.mAdminList.remove(admin);
9102             policy.mAdminMap.remove(adminReceiver);
9103             validatePasswordOwnerLocked(policy);
9104             if (doProxyCleanup) {
9105                 resetGlobalProxyLocked(policy);
9106             }
9107             saveSettingsLocked(userHandle);
9108             updateMaximumTimeToLockLocked(userHandle);
9109             policy.mRemovingAdmins.remove(adminReceiver);
9110
9111             Slog.i(LOG_TAG, "Device admin " + adminReceiver + " removed from user " + userHandle);
9112         }
9113         // The removed admin might have disabled camera, so update user
9114         // restrictions.
9115         pushUserRestrictions(userHandle);
9116     }
9117
9118     @Override
9119     public void setDeviceProvisioningConfigApplied() {
9120         enforceManageUsers();
9121         synchronized (this) {
9122             DevicePolicyData policy = getUserData(UserHandle.USER_SYSTEM);
9123             policy.mDeviceProvisioningConfigApplied = true;
9124             saveSettingsLocked(UserHandle.USER_SYSTEM);
9125         }
9126     }
9127
9128     @Override
9129     public boolean isDeviceProvisioningConfigApplied() {
9130         enforceManageUsers();
9131         synchronized (this) {
9132             final DevicePolicyData policy = getUserData(UserHandle.USER_SYSTEM);
9133             return policy.mDeviceProvisioningConfigApplied;
9134         }
9135     }
9136
9137     /**
9138      * Return true if a given user has any accounts that'll prevent installing a device or profile
9139      * owner {@code owner}.
9140      * - If the user has no accounts, then return false.
9141      * - Otherwise, if the owner is unknown (== null), or is not test-only, then return true.
9142      * - Otherwise, if there's any account that does not have ..._ALLOWED, or does have
9143      *   ..._DISALLOWED, return true.
9144      * - Otherwise return false.
9145      */
9146     private boolean hasIncompatibleAccountsLocked(int userId, @Nullable ComponentName owner) {
9147         final long token = mInjector.binderClearCallingIdentity();
9148         try {
9149             final AccountManager am = AccountManager.get(mContext);
9150             final Account accounts[] = am.getAccountsAsUser(userId);
9151             if (accounts.length == 0) {
9152                 return false;
9153             }
9154             final String[] feature_allow =
9155                     { DevicePolicyManager.ACCOUNT_FEATURE_DEVICE_OR_PROFILE_OWNER_ALLOWED };
9156             final String[] feature_disallow =
9157                     { DevicePolicyManager.ACCOUNT_FEATURE_DEVICE_OR_PROFILE_OWNER_DISALLOWED };
9158
9159             // Even if we find incompatible accounts along the way, we still check all accounts
9160             // for logging.
9161             boolean compatible = true;
9162             for (Account account : accounts) {
9163                 if (hasAccountFeatures(am, account, feature_disallow)) {
9164                     Log.e(LOG_TAG, account + " has " + feature_disallow[0]);
9165                     compatible = false;
9166                 }
9167                 if (!hasAccountFeatures(am, account, feature_allow)) {
9168                     Log.e(LOG_TAG, account + " doesn't have " + feature_allow[0]);
9169                     compatible = false;
9170                 }
9171             }
9172             if (compatible) {
9173                 Log.w(LOG_TAG, "All accounts are compatible");
9174             } else {
9175                 Log.e(LOG_TAG, "Found incompatible accounts");
9176             }
9177
9178             // Then check if the owner is test-only.
9179             String log;
9180             if (owner == null) {
9181                 // Owner is unknown.  Suppose it's not test-only
9182                 compatible = false;
9183                 log = "Only test-only device/profile owner can be installed with accounts";
9184             } else if (isAdminTestOnlyLocked(owner, userId)) {
9185                 if (compatible) {
9186                     log = "Installing test-only owner " + owner;
9187                 } else {
9188                     log = "Can't install test-only owner " + owner + " with incompatible accounts";
9189                 }
9190             } else {
9191                 compatible = false;
9192                 log = "Can't install non test-only owner " + owner + " with accounts";
9193             }
9194             if (compatible) {
9195                 Log.w(LOG_TAG, log);
9196             } else {
9197                 Log.e(LOG_TAG, log);
9198             }
9199             return !compatible;
9200         } finally {
9201             mInjector.binderRestoreCallingIdentity(token);
9202         }
9203     }
9204
9205     private boolean hasAccountFeatures(AccountManager am, Account account, String[] features) {
9206         try {
9207             return am.hasFeatures(account, features, null, null).getResult();
9208         } catch (Exception e) {
9209             Log.w(LOG_TAG, "Failed to get account feature", e);
9210             return false;
9211         }
9212     }
9213 }