DevicePolicyManagerService.java revision 4a21b25fad62e4f19d13ba814263841c931f56ef
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 17package com.android.server.devicepolicy; 18 19import static android.Manifest.permission.MANAGE_CA_CERTIFICATES; 20 21import com.android.internal.R; 22import com.android.internal.app.IAppOpsService; 23import com.android.internal.os.storage.ExternalStorageFormatter; 24import com.android.internal.util.FastXmlSerializer; 25import com.android.internal.util.JournaledFile; 26import com.android.internal.util.XmlUtils; 27import com.android.internal.widget.LockPatternUtils; 28import com.android.org.conscrypt.TrustedCertificateStore; 29import com.android.server.SystemService; 30 31import android.app.Activity; 32import android.app.ActivityManagerNative; 33import android.app.AlarmManager; 34import android.app.AppGlobals; 35import android.app.Notification; 36import android.app.NotificationManager; 37import android.app.PendingIntent; 38import android.app.admin.DeviceAdminInfo; 39import android.app.admin.DeviceAdminReceiver; 40import android.app.admin.DevicePolicyManager; 41import android.app.admin.IDevicePolicyManager; 42import android.content.BroadcastReceiver; 43import android.content.ComponentName; 44import android.content.ContentResolver; 45import android.content.Context; 46import android.content.Intent; 47import android.content.IntentFilter; 48import android.content.pm.ActivityInfo; 49import android.content.pm.ApplicationInfo; 50import android.content.pm.IPackageManager; 51import android.content.pm.PackageManager; 52import android.content.pm.ResolveInfo; 53import android.content.pm.UserInfo; 54import android.media.AudioManager; 55import android.media.IAudioService; 56import android.net.ConnectivityManager; 57import android.content.pm.PackageManager.NameNotFoundException; 58import android.net.ProxyInfo; 59import android.os.Binder; 60import android.os.Bundle; 61import android.os.Environment; 62import android.os.Handler; 63import android.os.IBinder; 64import android.os.IPowerManager; 65import android.os.PowerManager; 66import android.os.Process; 67import android.os.RecoverySystem; 68import android.os.RemoteCallback; 69import android.os.RemoteException; 70import android.os.ServiceManager; 71import android.os.SystemClock; 72import android.os.SystemProperties; 73import android.os.UserHandle; 74import android.os.UserManager; 75import android.provider.Settings; 76import android.security.Credentials; 77import android.security.IKeyChainService; 78import android.security.KeyChain; 79import android.security.KeyChain.KeyChainConnection; 80import android.util.Log; 81import android.util.PrintWriterPrinter; 82import android.util.Printer; 83import android.util.Slog; 84import android.util.SparseArray; 85import android.util.Xml; 86import android.view.IWindowManager; 87 88import org.xmlpull.v1.XmlPullParser; 89import org.xmlpull.v1.XmlPullParserException; 90import org.xmlpull.v1.XmlSerializer; 91 92import java.io.ByteArrayInputStream; 93import java.io.File; 94import java.io.FileDescriptor; 95import java.io.FileInputStream; 96import java.io.FileNotFoundException; 97import java.io.FileOutputStream; 98import java.io.IOException; 99import java.io.PrintWriter; 100import java.security.cert.CertificateException; 101import java.security.cert.CertificateFactory; 102import java.security.cert.X509Certificate; 103import java.text.DateFormat; 104import java.util.ArrayList; 105import java.util.Arrays; 106import java.util.Collections; 107import java.util.Date; 108import java.util.HashMap; 109import java.util.HashSet; 110import java.util.List; 111import java.util.Set; 112 113/** 114 * Implementation of the device policy APIs. 115 */ 116public class DevicePolicyManagerService extends IDevicePolicyManager.Stub { 117 118 private static final String LOG_TAG = "DevicePolicyManagerService"; 119 120 private static final String DEVICE_POLICIES_XML = "device_policies.xml"; 121 122 private static final String LOCK_TASK_COMPONENTS_XML = "lock-task-component"; 123 124 private static final int REQUEST_EXPIRE_PASSWORD = 5571; 125 126 private static final long MS_PER_DAY = 86400 * 1000; 127 128 private static final long EXPIRATION_GRACE_PERIOD_MS = 5 * MS_PER_DAY; // 5 days, in ms 129 130 protected static final String ACTION_EXPIRED_PASSWORD_NOTIFICATION 131 = "com.android.server.ACTION_EXPIRED_PASSWORD_NOTIFICATION"; 132 133 private static final int MONITORING_CERT_NOTIFICATION_ID = R.string.ssl_ca_cert_warning; 134 135 private static final boolean DBG = false; 136 137 private static final String ATTR_PERMISSION_PROVIDER = "permission-provider"; 138 139 final Context mContext; 140 final UserManager mUserManager; 141 final PowerManager.WakeLock mWakeLock; 142 143 IPowerManager mIPowerManager; 144 IWindowManager mIWindowManager; 145 NotificationManager mNotificationManager; 146 147 // Stores and loads state on device and profile owners. 148 private DeviceOwner mDeviceOwner; 149 150 /** 151 * Whether or not device admin feature is supported. If it isn't return defaults for all 152 * public methods. 153 */ 154 private boolean mHasFeature; 155 156 public static final class Lifecycle extends SystemService { 157 private DevicePolicyManagerService mService; 158 159 public Lifecycle(Context context) { 160 super(context); 161 mService = new DevicePolicyManagerService(context); 162 } 163 164 @Override 165 public void onStart() { 166 publishBinderService(Context.DEVICE_POLICY_SERVICE, mService); 167 } 168 169 @Override 170 public void onBootPhase(int phase) { 171 if (phase == PHASE_LOCK_SETTINGS_READY) { 172 mService.systemReady(); 173 } 174 } 175 } 176 public static class DevicePolicyData { 177 int mActivePasswordQuality = DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED; 178 int mActivePasswordLength = 0; 179 int mActivePasswordUpperCase = 0; 180 int mActivePasswordLowerCase = 0; 181 int mActivePasswordLetters = 0; 182 int mActivePasswordNumeric = 0; 183 int mActivePasswordSymbols = 0; 184 int mActivePasswordNonLetter = 0; 185 int mFailedPasswordAttempts = 0; 186 187 int mUserHandle; 188 int mPasswordOwner = -1; 189 long mLastMaximumTimeToLock = -1; 190 191 final HashMap<ComponentName, ActiveAdmin> mAdminMap 192 = new HashMap<ComponentName, ActiveAdmin>(); 193 final ArrayList<ActiveAdmin> mAdminList 194 = new ArrayList<ActiveAdmin>(); 195 196 // This is the list of component allowed to start lock task mode. 197 final List<ComponentName> mLockTaskComponents = new ArrayList<ComponentName>(); 198 199 ComponentName mRestrictionsProvider; 200 201 public DevicePolicyData(int userHandle) { 202 mUserHandle = userHandle; 203 } 204 } 205 206 final SparseArray<DevicePolicyData> mUserData = new SparseArray<DevicePolicyData>(); 207 208 Handler mHandler = new Handler(); 209 210 BroadcastReceiver mReceiver = new BroadcastReceiver() { 211 @Override 212 public void onReceive(Context context, Intent intent) { 213 final String action = intent.getAction(); 214 final int userHandle = intent.getIntExtra(Intent.EXTRA_USER_HANDLE, 215 getSendingUserId()); 216 if (Intent.ACTION_BOOT_COMPLETED.equals(action) 217 || ACTION_EXPIRED_PASSWORD_NOTIFICATION.equals(action)) { 218 if (DBG) Slog.v(LOG_TAG, "Sending password expiration notifications for action " 219 + action + " for user " + userHandle); 220 mHandler.post(new Runnable() { 221 public void run() { 222 handlePasswordExpirationNotification(userHandle); 223 } 224 }); 225 } 226 if (Intent.ACTION_BOOT_COMPLETED.equals(action) 227 || KeyChain.ACTION_STORAGE_CHANGED.equals(action)) { 228 manageMonitoringCertificateNotification(intent); 229 } 230 if (Intent.ACTION_USER_REMOVED.equals(action)) { 231 removeUserData(userHandle); 232 } else if (Intent.ACTION_USER_STARTED.equals(action) 233 || Intent.ACTION_PACKAGE_CHANGED.equals(action) 234 || Intent.ACTION_PACKAGE_REMOVED.equals(action) 235 || Intent.ACTION_EXTERNAL_APPLICATIONS_UNAVAILABLE.equals(action)) { 236 237 if (Intent.ACTION_USER_STARTED.equals(action)) { 238 // Reset the policy data 239 synchronized (DevicePolicyManagerService.this) { 240 mUserData.remove(userHandle); 241 } 242 } 243 244 handlePackagesChanged(userHandle); 245 } 246 } 247 }; 248 249 private IAppOpsService mAppOpsService; 250 251 static class ActiveAdmin { 252 private static final String TAG_DISABLE_KEYGUARD_FEATURES = "disable-keyguard-features"; 253 private static final String TAG_DISABLE_CAMERA = "disable-camera"; 254 private static final String TAG_DISABLE_ACCOUNT_MANAGEMENT = "disable-account-management"; 255 private static final String TAG_ACCOUNT_TYPE = "account-type"; 256 private static final String TAG_ENCRYPTION_REQUESTED = "encryption-requested"; 257 private static final String TAG_PASSWORD_EXPIRATION_DATE = "password-expiration-date"; 258 private static final String TAG_PASSWORD_EXPIRATION_TIMEOUT = "password-expiration-timeout"; 259 private static final String TAG_GLOBAL_PROXY_EXCLUSION_LIST = "global-proxy-exclusion-list"; 260 private static final String TAG_GLOBAL_PROXY_SPEC = "global-proxy-spec"; 261 private static final String TAG_SPECIFIES_GLOBAL_PROXY = "specifies-global-proxy"; 262 private static final String TAG_MAX_FAILED_PASSWORD_WIPE = "max-failed-password-wipe"; 263 private static final String TAG_MAX_TIME_TO_UNLOCK = "max-time-to-unlock"; 264 private static final String TAG_MIN_PASSWORD_NONLETTER = "min-password-nonletter"; 265 private static final String TAG_MIN_PASSWORD_SYMBOLS = "min-password-symbols"; 266 private static final String TAG_MIN_PASSWORD_NUMERIC = "min-password-numeric"; 267 private static final String TAG_MIN_PASSWORD_LETTERS = "min-password-letters"; 268 private static final String TAG_MIN_PASSWORD_LOWERCASE = "min-password-lowercase"; 269 private static final String TAG_MIN_PASSWORD_UPPERCASE = "min-password-uppercase"; 270 private static final String TAG_PASSWORD_HISTORY_LENGTH = "password-history-length"; 271 private static final String TAG_MIN_PASSWORD_LENGTH = "min-password-length"; 272 private static final String ATTR_VALUE = "value"; 273 private static final String TAG_PASSWORD_QUALITY = "password-quality"; 274 private static final String TAG_POLICIES = "policies"; 275 276 final DeviceAdminInfo info; 277 278 int passwordQuality = DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED; 279 280 static final int DEF_MINIMUM_PASSWORD_LENGTH = 0; 281 int minimumPasswordLength = DEF_MINIMUM_PASSWORD_LENGTH; 282 283 static final int DEF_PASSWORD_HISTORY_LENGTH = 0; 284 int passwordHistoryLength = DEF_PASSWORD_HISTORY_LENGTH; 285 286 static final int DEF_MINIMUM_PASSWORD_UPPER_CASE = 0; 287 int minimumPasswordUpperCase = DEF_MINIMUM_PASSWORD_UPPER_CASE; 288 289 static final int DEF_MINIMUM_PASSWORD_LOWER_CASE = 0; 290 int minimumPasswordLowerCase = DEF_MINIMUM_PASSWORD_LOWER_CASE; 291 292 static final int DEF_MINIMUM_PASSWORD_LETTERS = 1; 293 int minimumPasswordLetters = DEF_MINIMUM_PASSWORD_LETTERS; 294 295 static final int DEF_MINIMUM_PASSWORD_NUMERIC = 1; 296 int minimumPasswordNumeric = DEF_MINIMUM_PASSWORD_NUMERIC; 297 298 static final int DEF_MINIMUM_PASSWORD_SYMBOLS = 1; 299 int minimumPasswordSymbols = DEF_MINIMUM_PASSWORD_SYMBOLS; 300 301 static final int DEF_MINIMUM_PASSWORD_NON_LETTER = 0; 302 int minimumPasswordNonLetter = DEF_MINIMUM_PASSWORD_NON_LETTER; 303 304 static final long DEF_MAXIMUM_TIME_TO_UNLOCK = 0; 305 long maximumTimeToUnlock = DEF_MAXIMUM_TIME_TO_UNLOCK; 306 307 static final int DEF_MAXIMUM_FAILED_PASSWORDS_FOR_WIPE = 0; 308 int maximumFailedPasswordsForWipe = DEF_MAXIMUM_FAILED_PASSWORDS_FOR_WIPE; 309 310 static final long DEF_PASSWORD_EXPIRATION_TIMEOUT = 0; 311 long passwordExpirationTimeout = DEF_PASSWORD_EXPIRATION_TIMEOUT; 312 313 static final long DEF_PASSWORD_EXPIRATION_DATE = 0; 314 long passwordExpirationDate = DEF_PASSWORD_EXPIRATION_DATE; 315 316 static final int DEF_KEYGUARD_FEATURES_DISABLED = 0; // none 317 int disabledKeyguardFeatures = DEF_KEYGUARD_FEATURES_DISABLED; 318 319 boolean encryptionRequested = false; 320 boolean disableCamera = false; 321 Set<String> accountTypesWithManagementDisabled = new HashSet<String>(); 322 323 // TODO: review implementation decisions with frameworks team 324 boolean specifiesGlobalProxy = false; 325 String globalProxySpec = null; 326 String globalProxyExclusionList = null; 327 328 ActiveAdmin(DeviceAdminInfo _info) { 329 info = _info; 330 } 331 332 int getUid() { return info.getActivityInfo().applicationInfo.uid; } 333 334 public UserHandle getUserHandle() { 335 return new UserHandle(UserHandle.getUserId(info.getActivityInfo().applicationInfo.uid)); 336 } 337 338 void writeToXml(XmlSerializer out) 339 throws IllegalArgumentException, IllegalStateException, IOException { 340 out.startTag(null, TAG_POLICIES); 341 info.writePoliciesToXml(out); 342 out.endTag(null, TAG_POLICIES); 343 if (passwordQuality != DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED) { 344 out.startTag(null, TAG_PASSWORD_QUALITY); 345 out.attribute(null, ATTR_VALUE, Integer.toString(passwordQuality)); 346 out.endTag(null, TAG_PASSWORD_QUALITY); 347 if (minimumPasswordLength != DEF_MINIMUM_PASSWORD_LENGTH) { 348 out.startTag(null, TAG_MIN_PASSWORD_LENGTH); 349 out.attribute(null, ATTR_VALUE, Integer.toString(minimumPasswordLength)); 350 out.endTag(null, TAG_MIN_PASSWORD_LENGTH); 351 } 352 if(passwordHistoryLength != DEF_PASSWORD_HISTORY_LENGTH) { 353 out.startTag(null, TAG_PASSWORD_HISTORY_LENGTH); 354 out.attribute(null, ATTR_VALUE, Integer.toString(passwordHistoryLength)); 355 out.endTag(null, TAG_PASSWORD_HISTORY_LENGTH); 356 } 357 if (minimumPasswordUpperCase != DEF_MINIMUM_PASSWORD_UPPER_CASE) { 358 out.startTag(null, TAG_MIN_PASSWORD_UPPERCASE); 359 out.attribute(null, ATTR_VALUE, Integer.toString(minimumPasswordUpperCase)); 360 out.endTag(null, TAG_MIN_PASSWORD_UPPERCASE); 361 } 362 if (minimumPasswordLowerCase != DEF_MINIMUM_PASSWORD_LOWER_CASE) { 363 out.startTag(null, TAG_MIN_PASSWORD_LOWERCASE); 364 out.attribute(null, ATTR_VALUE, Integer.toString(minimumPasswordLowerCase)); 365 out.endTag(null, TAG_MIN_PASSWORD_LOWERCASE); 366 } 367 if (minimumPasswordLetters != DEF_MINIMUM_PASSWORD_LETTERS) { 368 out.startTag(null, TAG_MIN_PASSWORD_LETTERS); 369 out.attribute(null, ATTR_VALUE, Integer.toString(minimumPasswordLetters)); 370 out.endTag(null, TAG_MIN_PASSWORD_LETTERS); 371 } 372 if (minimumPasswordNumeric != DEF_MINIMUM_PASSWORD_NUMERIC) { 373 out.startTag(null, TAG_MIN_PASSWORD_NUMERIC); 374 out.attribute(null, ATTR_VALUE, Integer.toString(minimumPasswordNumeric)); 375 out.endTag(null, TAG_MIN_PASSWORD_NUMERIC); 376 } 377 if (minimumPasswordSymbols != DEF_MINIMUM_PASSWORD_SYMBOLS) { 378 out.startTag(null, TAG_MIN_PASSWORD_SYMBOLS); 379 out.attribute(null, ATTR_VALUE, Integer.toString(minimumPasswordSymbols)); 380 out.endTag(null, TAG_MIN_PASSWORD_SYMBOLS); 381 } 382 if (minimumPasswordNonLetter > DEF_MINIMUM_PASSWORD_NON_LETTER) { 383 out.startTag(null, TAG_MIN_PASSWORD_NONLETTER); 384 out.attribute(null, ATTR_VALUE, Integer.toString(minimumPasswordNonLetter)); 385 out.endTag(null, TAG_MIN_PASSWORD_NONLETTER); 386 } 387 } 388 if (maximumTimeToUnlock != DEF_MAXIMUM_TIME_TO_UNLOCK) { 389 out.startTag(null, TAG_MAX_TIME_TO_UNLOCK); 390 out.attribute(null, ATTR_VALUE, Long.toString(maximumTimeToUnlock)); 391 out.endTag(null, TAG_MAX_TIME_TO_UNLOCK); 392 } 393 if (maximumFailedPasswordsForWipe != DEF_MAXIMUM_FAILED_PASSWORDS_FOR_WIPE) { 394 out.startTag(null, TAG_MAX_FAILED_PASSWORD_WIPE); 395 out.attribute(null, ATTR_VALUE, Integer.toString(maximumFailedPasswordsForWipe)); 396 out.endTag(null, TAG_MAX_FAILED_PASSWORD_WIPE); 397 } 398 if (specifiesGlobalProxy) { 399 out.startTag(null, TAG_SPECIFIES_GLOBAL_PROXY); 400 out.attribute(null, ATTR_VALUE, Boolean.toString(specifiesGlobalProxy)); 401 out.endTag(null, TAG_SPECIFIES_GLOBAL_PROXY); 402 if (globalProxySpec != null) { 403 out.startTag(null, TAG_GLOBAL_PROXY_SPEC); 404 out.attribute(null, ATTR_VALUE, globalProxySpec); 405 out.endTag(null, TAG_GLOBAL_PROXY_SPEC); 406 } 407 if (globalProxyExclusionList != null) { 408 out.startTag(null, TAG_GLOBAL_PROXY_EXCLUSION_LIST); 409 out.attribute(null, ATTR_VALUE, globalProxyExclusionList); 410 out.endTag(null, TAG_GLOBAL_PROXY_EXCLUSION_LIST); 411 } 412 } 413 if (passwordExpirationTimeout != DEF_PASSWORD_EXPIRATION_TIMEOUT) { 414 out.startTag(null, TAG_PASSWORD_EXPIRATION_TIMEOUT); 415 out.attribute(null, ATTR_VALUE, Long.toString(passwordExpirationTimeout)); 416 out.endTag(null, TAG_PASSWORD_EXPIRATION_TIMEOUT); 417 } 418 if (passwordExpirationDate != DEF_PASSWORD_EXPIRATION_DATE) { 419 out.startTag(null, TAG_PASSWORD_EXPIRATION_DATE); 420 out.attribute(null, ATTR_VALUE, Long.toString(passwordExpirationDate)); 421 out.endTag(null, TAG_PASSWORD_EXPIRATION_DATE); 422 } 423 if (encryptionRequested) { 424 out.startTag(null, TAG_ENCRYPTION_REQUESTED); 425 out.attribute(null, ATTR_VALUE, Boolean.toString(encryptionRequested)); 426 out.endTag(null, TAG_ENCRYPTION_REQUESTED); 427 } 428 if (disableCamera) { 429 out.startTag(null, TAG_DISABLE_CAMERA); 430 out.attribute(null, ATTR_VALUE, Boolean.toString(disableCamera)); 431 out.endTag(null, TAG_DISABLE_CAMERA); 432 } 433 if (disabledKeyguardFeatures != DEF_KEYGUARD_FEATURES_DISABLED) { 434 out.startTag(null, TAG_DISABLE_KEYGUARD_FEATURES); 435 out.attribute(null, ATTR_VALUE, Integer.toString(disabledKeyguardFeatures)); 436 out.endTag(null, TAG_DISABLE_KEYGUARD_FEATURES); 437 } 438 if (!accountTypesWithManagementDisabled.isEmpty()) { 439 out.startTag(null, TAG_DISABLE_ACCOUNT_MANAGEMENT); 440 for (String ac : accountTypesWithManagementDisabled) { 441 out.startTag(null, TAG_ACCOUNT_TYPE); 442 out.attribute(null, ATTR_VALUE, ac); 443 out.endTag(null, TAG_ACCOUNT_TYPE); 444 } 445 out.endTag(null, TAG_DISABLE_ACCOUNT_MANAGEMENT); 446 } 447 } 448 449 void readFromXml(XmlPullParser parser) 450 throws XmlPullParserException, IOException { 451 int outerDepth = parser.getDepth(); 452 int type; 453 while ((type=parser.next()) != XmlPullParser.END_DOCUMENT 454 && (type != XmlPullParser.END_TAG || parser.getDepth() > outerDepth)) { 455 if (type == XmlPullParser.END_TAG || type == XmlPullParser.TEXT) { 456 continue; 457 } 458 String tag = parser.getName(); 459 if (TAG_POLICIES.equals(tag)) { 460 info.readPoliciesFromXml(parser); 461 } else if (TAG_PASSWORD_QUALITY.equals(tag)) { 462 passwordQuality = Integer.parseInt( 463 parser.getAttributeValue(null, ATTR_VALUE)); 464 } else if (TAG_MIN_PASSWORD_LENGTH.equals(tag)) { 465 minimumPasswordLength = Integer.parseInt( 466 parser.getAttributeValue(null, ATTR_VALUE)); 467 } else if (TAG_PASSWORD_HISTORY_LENGTH.equals(tag)) { 468 passwordHistoryLength = Integer.parseInt( 469 parser.getAttributeValue(null, ATTR_VALUE)); 470 } else if (TAG_MIN_PASSWORD_UPPERCASE.equals(tag)) { 471 minimumPasswordUpperCase = Integer.parseInt( 472 parser.getAttributeValue(null, ATTR_VALUE)); 473 } else if (TAG_MIN_PASSWORD_LOWERCASE.equals(tag)) { 474 minimumPasswordLowerCase = Integer.parseInt( 475 parser.getAttributeValue(null, ATTR_VALUE)); 476 } else if (TAG_MIN_PASSWORD_LETTERS.equals(tag)) { 477 minimumPasswordLetters = Integer.parseInt( 478 parser.getAttributeValue(null, ATTR_VALUE)); 479 } else if (TAG_MIN_PASSWORD_NUMERIC.equals(tag)) { 480 minimumPasswordNumeric = Integer.parseInt( 481 parser.getAttributeValue(null, ATTR_VALUE)); 482 } else if (TAG_MIN_PASSWORD_SYMBOLS.equals(tag)) { 483 minimumPasswordSymbols = Integer.parseInt( 484 parser.getAttributeValue(null, ATTR_VALUE)); 485 } else if (TAG_MIN_PASSWORD_NONLETTER.equals(tag)) { 486 minimumPasswordNonLetter = Integer.parseInt( 487 parser.getAttributeValue(null, ATTR_VALUE)); 488 } else if (TAG_MAX_TIME_TO_UNLOCK.equals(tag)) { 489 maximumTimeToUnlock = Long.parseLong( 490 parser.getAttributeValue(null, ATTR_VALUE)); 491 } else if (TAG_MAX_FAILED_PASSWORD_WIPE.equals(tag)) { 492 maximumFailedPasswordsForWipe = Integer.parseInt( 493 parser.getAttributeValue(null, ATTR_VALUE)); 494 } else if (TAG_SPECIFIES_GLOBAL_PROXY.equals(tag)) { 495 specifiesGlobalProxy = Boolean.parseBoolean( 496 parser.getAttributeValue(null, ATTR_VALUE)); 497 } else if (TAG_GLOBAL_PROXY_SPEC.equals(tag)) { 498 globalProxySpec = 499 parser.getAttributeValue(null, ATTR_VALUE); 500 } else if (TAG_GLOBAL_PROXY_EXCLUSION_LIST.equals(tag)) { 501 globalProxyExclusionList = 502 parser.getAttributeValue(null, ATTR_VALUE); 503 } else if (TAG_PASSWORD_EXPIRATION_TIMEOUT.equals(tag)) { 504 passwordExpirationTimeout = Long.parseLong( 505 parser.getAttributeValue(null, ATTR_VALUE)); 506 } else if (TAG_PASSWORD_EXPIRATION_DATE.equals(tag)) { 507 passwordExpirationDate = Long.parseLong( 508 parser.getAttributeValue(null, ATTR_VALUE)); 509 } else if (TAG_ENCRYPTION_REQUESTED.equals(tag)) { 510 encryptionRequested = Boolean.parseBoolean( 511 parser.getAttributeValue(null, ATTR_VALUE)); 512 } else if (TAG_DISABLE_CAMERA.equals(tag)) { 513 disableCamera = Boolean.parseBoolean( 514 parser.getAttributeValue(null, ATTR_VALUE)); 515 } else if (TAG_DISABLE_KEYGUARD_FEATURES.equals(tag)) { 516 disabledKeyguardFeatures = Integer.parseInt( 517 parser.getAttributeValue(null, ATTR_VALUE)); 518 } else if (TAG_DISABLE_ACCOUNT_MANAGEMENT.equals(tag)) { 519 int outerDepthDAM = parser.getDepth(); 520 int typeDAM; 521 while ((typeDAM=parser.next()) != XmlPullParser.END_DOCUMENT 522 && (typeDAM != XmlPullParser.END_TAG 523 || parser.getDepth() > outerDepthDAM)) { 524 if (typeDAM == XmlPullParser.END_TAG || typeDAM == XmlPullParser.TEXT) { 525 continue; 526 } 527 String tagDAM = parser.getName(); 528 if (TAG_ACCOUNT_TYPE.equals(tagDAM)) { 529 accountTypesWithManagementDisabled.add( 530 parser.getAttributeValue(null, ATTR_VALUE)); 531 } else { 532 Slog.w(LOG_TAG, "Unknown tag under " + tag + ": " + tagDAM); 533 } 534 } 535 } else { 536 Slog.w(LOG_TAG, "Unknown admin tag: " + tag); 537 } 538 XmlUtils.skipCurrentTag(parser); 539 } 540 } 541 542 void dump(String prefix, PrintWriter pw) { 543 pw.print(prefix); pw.print("uid="); pw.println(getUid()); 544 pw.print(prefix); pw.println("policies:"); 545 ArrayList<DeviceAdminInfo.PolicyInfo> pols = info.getUsedPolicies(); 546 if (pols != null) { 547 for (int i=0; i<pols.size(); i++) { 548 pw.print(prefix); pw.print(" "); pw.println(pols.get(i).tag); 549 } 550 } 551 pw.print(prefix); pw.print("passwordQuality=0x"); 552 pw.println(Integer.toHexString(passwordQuality)); 553 pw.print(prefix); pw.print("minimumPasswordLength="); 554 pw.println(minimumPasswordLength); 555 pw.print(prefix); pw.print("passwordHistoryLength="); 556 pw.println(passwordHistoryLength); 557 pw.print(prefix); pw.print("minimumPasswordUpperCase="); 558 pw.println(minimumPasswordUpperCase); 559 pw.print(prefix); pw.print("minimumPasswordLowerCase="); 560 pw.println(minimumPasswordLowerCase); 561 pw.print(prefix); pw.print("minimumPasswordLetters="); 562 pw.println(minimumPasswordLetters); 563 pw.print(prefix); pw.print("minimumPasswordNumeric="); 564 pw.println(minimumPasswordNumeric); 565 pw.print(prefix); pw.print("minimumPasswordSymbols="); 566 pw.println(minimumPasswordSymbols); 567 pw.print(prefix); pw.print("minimumPasswordNonLetter="); 568 pw.println(minimumPasswordNonLetter); 569 pw.print(prefix); pw.print("maximumTimeToUnlock="); 570 pw.println(maximumTimeToUnlock); 571 pw.print(prefix); pw.print("maximumFailedPasswordsForWipe="); 572 pw.println(maximumFailedPasswordsForWipe); 573 pw.print(prefix); pw.print("specifiesGlobalProxy="); 574 pw.println(specifiesGlobalProxy); 575 pw.print(prefix); pw.print("passwordExpirationTimeout="); 576 pw.println(passwordExpirationTimeout); 577 pw.print(prefix); pw.print("passwordExpirationDate="); 578 pw.println(passwordExpirationDate); 579 if (globalProxySpec != null) { 580 pw.print(prefix); pw.print("globalProxySpec="); 581 pw.println(globalProxySpec); 582 } 583 if (globalProxyExclusionList != null) { 584 pw.print(prefix); pw.print("globalProxyEclusionList="); 585 pw.println(globalProxyExclusionList); 586 } 587 pw.print(prefix); pw.print("encryptionRequested="); 588 pw.println(encryptionRequested); 589 pw.print(prefix); pw.print("disableCamera="); 590 pw.println(disableCamera); 591 pw.print(prefix); pw.print("disabledKeyguardFeatures="); 592 pw.println(disabledKeyguardFeatures); 593 } 594 } 595 596 private void handlePackagesChanged(int userHandle) { 597 boolean removed = false; 598 if (DBG) Slog.d(LOG_TAG, "Handling package changes for user " + userHandle); 599 DevicePolicyData policy = getUserData(userHandle); 600 IPackageManager pm = AppGlobals.getPackageManager(); 601 for (int i = policy.mAdminList.size() - 1; i >= 0; i--) { 602 ActiveAdmin aa = policy.mAdminList.get(i); 603 try { 604 if (pm.getPackageInfo(aa.info.getPackageName(), 0, userHandle) == null 605 || pm.getReceiverInfo(aa.info.getComponent(), 0, userHandle) == null) { 606 removed = true; 607 policy.mAdminList.remove(i); 608 policy.mAdminMap.remove(aa.info.getComponent()); 609 } 610 } catch (RemoteException re) { 611 // Shouldn't happen 612 } 613 } 614 if (removed) { 615 validatePasswordOwnerLocked(policy); 616 syncDeviceCapabilitiesLocked(policy); 617 saveSettingsLocked(policy.mUserHandle); 618 } 619 } 620 621 /** 622 * Instantiates the service. 623 */ 624 public DevicePolicyManagerService(Context context) { 625 mContext = context; 626 mUserManager = UserManager.get(mContext); 627 mHasFeature = context.getPackageManager().hasSystemFeature( 628 PackageManager.FEATURE_DEVICE_ADMIN); 629 mWakeLock = ((PowerManager)context.getSystemService(Context.POWER_SERVICE)) 630 .newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, "DPM"); 631 if (!mHasFeature) { 632 // Skip the rest of the initialization 633 return; 634 } 635 IntentFilter filter = new IntentFilter(); 636 filter.addAction(Intent.ACTION_BOOT_COMPLETED); 637 filter.addAction(ACTION_EXPIRED_PASSWORD_NOTIFICATION); 638 filter.addAction(Intent.ACTION_USER_REMOVED); 639 filter.addAction(Intent.ACTION_USER_STARTED); 640 filter.addAction(KeyChain.ACTION_STORAGE_CHANGED); 641 filter.setPriority(IntentFilter.SYSTEM_HIGH_PRIORITY); 642 context.registerReceiverAsUser(mReceiver, UserHandle.ALL, filter, null, mHandler); 643 filter = new IntentFilter(); 644 filter.addAction(Intent.ACTION_PACKAGE_CHANGED); 645 filter.addAction(Intent.ACTION_PACKAGE_REMOVED); 646 filter.addAction(Intent.ACTION_EXTERNAL_APPLICATIONS_UNAVAILABLE); 647 filter.addAction(Intent.ACTION_PACKAGE_ADDED); 648 filter.addDataScheme("package"); 649 context.registerReceiverAsUser(mReceiver, UserHandle.ALL, filter, null, mHandler); 650 } 651 652 /** 653 * Creates and loads the policy data from xml. 654 * @param userHandle the user for whom to load the policy data 655 * @return 656 */ 657 DevicePolicyData getUserData(int userHandle) { 658 synchronized (this) { 659 DevicePolicyData policy = mUserData.get(userHandle); 660 if (policy == null) { 661 policy = new DevicePolicyData(userHandle); 662 mUserData.append(userHandle, policy); 663 loadSettingsLocked(policy, userHandle); 664 } 665 return policy; 666 } 667 } 668 669 void removeUserData(int userHandle) { 670 synchronized (this) { 671 if (userHandle == UserHandle.USER_OWNER) { 672 Slog.w(LOG_TAG, "Tried to remove device policy file for user 0! Ignoring."); 673 return; 674 } 675 if (mDeviceOwner != null) { 676 mDeviceOwner.removeProfileOwner(userHandle); 677 mDeviceOwner.writeOwnerFile(); 678 } 679 680 DevicePolicyData policy = mUserData.get(userHandle); 681 if (policy != null) { 682 mUserData.remove(userHandle); 683 } 684 File policyFile = new File(Environment.getUserSystemDirectory(userHandle), 685 DEVICE_POLICIES_XML); 686 policyFile.delete(); 687 Slog.i(LOG_TAG, "Removed device policy file " + policyFile.getAbsolutePath()); 688 } 689 } 690 691 void loadDeviceOwner() { 692 synchronized (this) { 693 mDeviceOwner = DeviceOwner.load(); 694 } 695 } 696 697 /** 698 * Set an alarm for an upcoming event - expiration warning, expiration, or post-expiration 699 * reminders. Clears alarm if no expirations are configured. 700 */ 701 protected void setExpirationAlarmCheckLocked(Context context, DevicePolicyData policy) { 702 final long expiration = getPasswordExpirationLocked(null, policy.mUserHandle); 703 final long now = System.currentTimeMillis(); 704 final long timeToExpire = expiration - now; 705 final long alarmTime; 706 if (expiration == 0) { 707 // No expirations are currently configured: Cancel alarm. 708 alarmTime = 0; 709 } else if (timeToExpire <= 0) { 710 // The password has already expired: Repeat every 24 hours. 711 alarmTime = now + MS_PER_DAY; 712 } else { 713 // Selecting the next alarm time: Roll forward to the next 24 hour multiple before 714 // the expiration time. 715 long alarmInterval = timeToExpire % MS_PER_DAY; 716 if (alarmInterval == 0) { 717 alarmInterval = MS_PER_DAY; 718 } 719 alarmTime = now + alarmInterval; 720 } 721 722 long token = Binder.clearCallingIdentity(); 723 try { 724 AlarmManager am = (AlarmManager) context.getSystemService(Context.ALARM_SERVICE); 725 PendingIntent pi = PendingIntent.getBroadcastAsUser(context, REQUEST_EXPIRE_PASSWORD, 726 new Intent(ACTION_EXPIRED_PASSWORD_NOTIFICATION), 727 PendingIntent.FLAG_ONE_SHOT | PendingIntent.FLAG_UPDATE_CURRENT, 728 new UserHandle(policy.mUserHandle)); 729 am.cancel(pi); 730 if (alarmTime != 0) { 731 am.set(AlarmManager.RTC, alarmTime, pi); 732 } 733 } finally { 734 Binder.restoreCallingIdentity(token); 735 } 736 } 737 738 private IPowerManager getIPowerManager() { 739 if (mIPowerManager == null) { 740 IBinder b = ServiceManager.getService(Context.POWER_SERVICE); 741 mIPowerManager = IPowerManager.Stub.asInterface(b); 742 } 743 return mIPowerManager; 744 } 745 746 private IWindowManager getWindowManager() { 747 if (mIWindowManager == null) { 748 IBinder b = ServiceManager.getService(Context.WINDOW_SERVICE); 749 mIWindowManager = IWindowManager.Stub.asInterface(b); 750 } 751 return mIWindowManager; 752 } 753 754 private NotificationManager getNotificationManager() { 755 if (mNotificationManager == null) { 756 mNotificationManager = 757 (NotificationManager) mContext.getSystemService(Context.NOTIFICATION_SERVICE); 758 } 759 return mNotificationManager; 760 } 761 762 ActiveAdmin getActiveAdminUncheckedLocked(ComponentName who, int userHandle) { 763 ActiveAdmin admin = getUserData(userHandle).mAdminMap.get(who); 764 if (admin != null 765 && who.getPackageName().equals(admin.info.getActivityInfo().packageName) 766 && who.getClassName().equals(admin.info.getActivityInfo().name)) { 767 return admin; 768 } 769 return null; 770 } 771 772 ActiveAdmin getActiveAdminForCallerLocked(ComponentName who, int reqPolicy) 773 throws SecurityException { 774 final int callingUid = Binder.getCallingUid(); 775 final int userHandle = UserHandle.getUserId(callingUid); 776 final DevicePolicyData policy = getUserData(userHandle); 777 778 List<ActiveAdmin> candidates = new ArrayList<ActiveAdmin>(); 779 780 // Build a list of admins for this uid matching the given ComponentName 781 if (who != null) { 782 ActiveAdmin admin = policy.mAdminMap.get(who); 783 if (admin == null) { 784 throw new SecurityException("No active admin " + who); 785 } 786 if (admin.getUid() != callingUid) { 787 throw new SecurityException("Admin " + who + " is not owned by uid " 788 + Binder.getCallingUid()); 789 } 790 candidates.add(admin); 791 } else { 792 for (ActiveAdmin admin : policy.mAdminList) { 793 if (admin.getUid() == callingUid) { 794 candidates.add(admin); 795 } 796 } 797 } 798 799 // Try to find an admin which can use reqPolicy 800 for (ActiveAdmin admin : candidates) { 801 boolean ownsDevice = isDeviceOwner(admin.info.getPackageName()); 802 boolean ownsProfile = (getProfileOwner(userHandle) != null 803 && getProfileOwner(userHandle).equals(admin.info.getPackageName())); 804 805 if (reqPolicy == DeviceAdminInfo.USES_POLICY_DEVICE_OWNER) { 806 if (ownsDevice) { 807 return admin; 808 } 809 } else if (reqPolicy == DeviceAdminInfo.USES_POLICY_PROFILE_OWNER) { 810 if (ownsDevice || ownsProfile) { 811 return admin; 812 } 813 } else { 814 if (admin.info.usesPolicy(reqPolicy)) { 815 return admin; 816 } 817 } 818 } 819 820 if (who != null) { 821 throw new SecurityException("Admin " + candidates.get(0).info.getComponent() 822 + " did not specify uses-policy for: " 823 + candidates.get(0).info.getTagForPolicy(reqPolicy)); 824 } else { 825 throw new SecurityException("No active admin owned by uid " 826 + Binder.getCallingUid() + " for policy:" + reqPolicy); 827 } 828 } 829 830 void sendAdminCommandLocked(ActiveAdmin admin, String action) { 831 sendAdminCommandLocked(admin, action, null); 832 } 833 834 /** 835 * Send an update to one specific admin, get notified when that admin returns a result. 836 */ 837 void sendAdminCommandLocked(ActiveAdmin admin, String action, BroadcastReceiver result) { 838 Intent intent = new Intent(action); 839 intent.setComponent(admin.info.getComponent()); 840 if (action.equals(DeviceAdminReceiver.ACTION_PASSWORD_EXPIRING)) { 841 intent.putExtra("expiration", admin.passwordExpirationDate); 842 } 843 if (result != null) { 844 mContext.sendOrderedBroadcastAsUser(intent, admin.getUserHandle(), 845 null, result, mHandler, Activity.RESULT_OK, null, null); 846 } else { 847 mContext.sendBroadcastAsUser(intent, admin.getUserHandle()); 848 } 849 } 850 851 /** 852 * Send an update to all admins of a user that enforce a specified policy. 853 */ 854 void sendAdminCommandLocked(String action, int reqPolicy, int userHandle) { 855 final DevicePolicyData policy = getUserData(userHandle); 856 final int count = policy.mAdminList.size(); 857 if (count > 0) { 858 for (int i = 0; i < count; i++) { 859 final ActiveAdmin admin = policy.mAdminList.get(i); 860 if (admin.info.usesPolicy(reqPolicy)) { 861 sendAdminCommandLocked(admin, action); 862 } 863 } 864 } 865 } 866 867 /** 868 * Send an update intent to all admins of a user and its profiles. Only send to admins that 869 * enforce a specified policy. 870 */ 871 private void sendAdminCommandToSelfAndProfilesLocked(String action, int reqPolicy, 872 int userHandle) { 873 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 874 for (UserInfo ui : profiles) { 875 int id = ui.getUserHandle().getIdentifier(); 876 sendAdminCommandLocked(action, reqPolicy, id); 877 } 878 } 879 880 void removeActiveAdminLocked(final ComponentName adminReceiver, int userHandle) { 881 final ActiveAdmin admin = getActiveAdminUncheckedLocked(adminReceiver, userHandle); 882 if (admin != null) { 883 sendAdminCommandLocked(admin, 884 DeviceAdminReceiver.ACTION_DEVICE_ADMIN_DISABLED, 885 new BroadcastReceiver() { 886 @Override 887 public void onReceive(Context context, Intent intent) { 888 synchronized (DevicePolicyManagerService.this) { 889 int userHandle = admin.getUserHandle().getIdentifier(); 890 DevicePolicyData policy = getUserData(userHandle); 891 boolean doProxyCleanup = admin.info.usesPolicy( 892 DeviceAdminInfo.USES_POLICY_SETS_GLOBAL_PROXY); 893 policy.mAdminList.remove(admin); 894 policy.mAdminMap.remove(adminReceiver); 895 validatePasswordOwnerLocked(policy); 896 syncDeviceCapabilitiesLocked(policy); 897 if (doProxyCleanup) { 898 resetGlobalProxyLocked(getUserData(userHandle)); 899 } 900 saveSettingsLocked(userHandle); 901 updateMaximumTimeToLockLocked(policy); 902 } 903 } 904 }); 905 } 906 } 907 908 public DeviceAdminInfo findAdmin(ComponentName adminName, int userHandle) { 909 if (!mHasFeature) { 910 return null; 911 } 912 enforceCrossUserPermission(userHandle); 913 Intent resolveIntent = new Intent(); 914 resolveIntent.setComponent(adminName); 915 List<ResolveInfo> infos = mContext.getPackageManager().queryBroadcastReceivers( 916 resolveIntent, 917 PackageManager.GET_META_DATA | PackageManager.GET_DISABLED_UNTIL_USED_COMPONENTS, 918 userHandle); 919 if (infos == null || infos.size() <= 0) { 920 throw new IllegalArgumentException("Unknown admin: " + adminName); 921 } 922 923 try { 924 return new DeviceAdminInfo(mContext, infos.get(0)); 925 } catch (XmlPullParserException e) { 926 Slog.w(LOG_TAG, "Bad device admin requested for user=" + userHandle + ": " + adminName, 927 e); 928 return null; 929 } catch (IOException e) { 930 Slog.w(LOG_TAG, "Bad device admin requested for user=" + userHandle + ": " + adminName, 931 e); 932 return null; 933 } 934 } 935 936 private static JournaledFile makeJournaledFile(int userHandle) { 937 final String base = userHandle == 0 938 ? "/data/system/" + DEVICE_POLICIES_XML 939 : new File(Environment.getUserSystemDirectory(userHandle), DEVICE_POLICIES_XML) 940 .getAbsolutePath(); 941 return new JournaledFile(new File(base), new File(base + ".tmp")); 942 } 943 944 private void saveSettingsLocked(int userHandle) { 945 DevicePolicyData policy = getUserData(userHandle); 946 JournaledFile journal = makeJournaledFile(userHandle); 947 FileOutputStream stream = null; 948 try { 949 stream = new FileOutputStream(journal.chooseForWrite(), false); 950 XmlSerializer out = new FastXmlSerializer(); 951 out.setOutput(stream, "utf-8"); 952 out.startDocument(null, true); 953 954 out.startTag(null, "policies"); 955 if (policy.mRestrictionsProvider != null) { 956 out.attribute(null, ATTR_PERMISSION_PROVIDER, 957 policy.mRestrictionsProvider.flattenToString()); 958 } 959 960 final int N = policy.mAdminList.size(); 961 for (int i=0; i<N; i++) { 962 ActiveAdmin ap = policy.mAdminList.get(i); 963 if (ap != null) { 964 out.startTag(null, "admin"); 965 out.attribute(null, "name", ap.info.getComponent().flattenToString()); 966 ap.writeToXml(out); 967 out.endTag(null, "admin"); 968 } 969 } 970 971 if (policy.mPasswordOwner >= 0) { 972 out.startTag(null, "password-owner"); 973 out.attribute(null, "value", Integer.toString(policy.mPasswordOwner)); 974 out.endTag(null, "password-owner"); 975 } 976 977 if (policy.mFailedPasswordAttempts != 0) { 978 out.startTag(null, "failed-password-attempts"); 979 out.attribute(null, "value", Integer.toString(policy.mFailedPasswordAttempts)); 980 out.endTag(null, "failed-password-attempts"); 981 } 982 983 if (policy.mActivePasswordQuality != 0 || policy.mActivePasswordLength != 0 984 || policy.mActivePasswordUpperCase != 0 || policy.mActivePasswordLowerCase != 0 985 || policy.mActivePasswordLetters != 0 || policy.mActivePasswordNumeric != 0 986 || policy.mActivePasswordSymbols != 0 || policy.mActivePasswordNonLetter != 0) { 987 out.startTag(null, "active-password"); 988 out.attribute(null, "quality", Integer.toString(policy.mActivePasswordQuality)); 989 out.attribute(null, "length", Integer.toString(policy.mActivePasswordLength)); 990 out.attribute(null, "uppercase", Integer.toString(policy.mActivePasswordUpperCase)); 991 out.attribute(null, "lowercase", Integer.toString(policy.mActivePasswordLowerCase)); 992 out.attribute(null, "letters", Integer.toString(policy.mActivePasswordLetters)); 993 out.attribute(null, "numeric", Integer 994 .toString(policy.mActivePasswordNumeric)); 995 out.attribute(null, "symbols", Integer.toString(policy.mActivePasswordSymbols)); 996 out.attribute(null, "nonletter", Integer.toString(policy.mActivePasswordNonLetter)); 997 out.endTag(null, "active-password"); 998 } 999 1000 for (int i=0; i<policy.mLockTaskComponents.size(); i++) { 1001 ComponentName component = policy.mLockTaskComponents.get(i); 1002 out.startTag(null, LOCK_TASK_COMPONENTS_XML); 1003 out.attribute(null, "name", component.flattenToString()); 1004 out.endTag(null, LOCK_TASK_COMPONENTS_XML); 1005 } 1006 1007 out.endTag(null, "policies"); 1008 1009 out.endDocument(); 1010 stream.close(); 1011 journal.commit(); 1012 sendChangedNotification(userHandle); 1013 } catch (IOException e) { 1014 try { 1015 if (stream != null) { 1016 stream.close(); 1017 } 1018 } catch (IOException ex) { 1019 // Ignore 1020 } 1021 journal.rollback(); 1022 } 1023 } 1024 1025 private void sendChangedNotification(int userHandle) { 1026 Intent intent = new Intent(DevicePolicyManager.ACTION_DEVICE_POLICY_MANAGER_STATE_CHANGED); 1027 intent.setFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY); 1028 long ident = Binder.clearCallingIdentity(); 1029 try { 1030 mContext.sendBroadcastAsUser(intent, new UserHandle(userHandle)); 1031 } finally { 1032 Binder.restoreCallingIdentity(ident); 1033 } 1034 } 1035 1036 private void loadSettingsLocked(DevicePolicyData policy, int userHandle) { 1037 JournaledFile journal = makeJournaledFile(userHandle); 1038 FileInputStream stream = null; 1039 File file = journal.chooseForRead(); 1040 try { 1041 stream = new FileInputStream(file); 1042 XmlPullParser parser = Xml.newPullParser(); 1043 parser.setInput(stream, null); 1044 1045 int type; 1046 while ((type=parser.next()) != XmlPullParser.END_DOCUMENT 1047 && type != XmlPullParser.START_TAG) { 1048 } 1049 String tag = parser.getName(); 1050 if (!"policies".equals(tag)) { 1051 throw new XmlPullParserException( 1052 "Settings do not start with policies tag: found " + tag); 1053 } 1054 1055 // Extract the permission provider component name if available 1056 String permissionProvider = parser.getAttributeValue(null, ATTR_PERMISSION_PROVIDER); 1057 if (permissionProvider != null) { 1058 policy.mRestrictionsProvider = ComponentName.unflattenFromString(permissionProvider); 1059 } 1060 1061 type = parser.next(); 1062 int outerDepth = parser.getDepth(); 1063 policy.mLockTaskComponents.clear(); 1064 while ((type=parser.next()) != XmlPullParser.END_DOCUMENT 1065 && (type != XmlPullParser.END_TAG || parser.getDepth() > outerDepth)) { 1066 if (type == XmlPullParser.END_TAG || type == XmlPullParser.TEXT) { 1067 continue; 1068 } 1069 tag = parser.getName(); 1070 if ("admin".equals(tag)) { 1071 String name = parser.getAttributeValue(null, "name"); 1072 try { 1073 DeviceAdminInfo dai = findAdmin( 1074 ComponentName.unflattenFromString(name), userHandle); 1075 if (DBG && (UserHandle.getUserId(dai.getActivityInfo().applicationInfo.uid) 1076 != userHandle)) { 1077 Slog.w(LOG_TAG, "findAdmin returned an incorrect uid " 1078 + dai.getActivityInfo().applicationInfo.uid + " for user " 1079 + userHandle); 1080 } 1081 if (dai != null) { 1082 ActiveAdmin ap = new ActiveAdmin(dai); 1083 ap.readFromXml(parser); 1084 policy.mAdminMap.put(ap.info.getComponent(), ap); 1085 policy.mAdminList.add(ap); 1086 } 1087 } catch (RuntimeException e) { 1088 Slog.w(LOG_TAG, "Failed loading admin " + name, e); 1089 } 1090 } else if ("failed-password-attempts".equals(tag)) { 1091 policy.mFailedPasswordAttempts = Integer.parseInt( 1092 parser.getAttributeValue(null, "value")); 1093 XmlUtils.skipCurrentTag(parser); 1094 } else if ("password-owner".equals(tag)) { 1095 policy.mPasswordOwner = Integer.parseInt( 1096 parser.getAttributeValue(null, "value")); 1097 XmlUtils.skipCurrentTag(parser); 1098 } else if ("active-password".equals(tag)) { 1099 policy.mActivePasswordQuality = Integer.parseInt( 1100 parser.getAttributeValue(null, "quality")); 1101 policy.mActivePasswordLength = Integer.parseInt( 1102 parser.getAttributeValue(null, "length")); 1103 policy.mActivePasswordUpperCase = Integer.parseInt( 1104 parser.getAttributeValue(null, "uppercase")); 1105 policy.mActivePasswordLowerCase = Integer.parseInt( 1106 parser.getAttributeValue(null, "lowercase")); 1107 policy.mActivePasswordLetters = Integer.parseInt( 1108 parser.getAttributeValue(null, "letters")); 1109 policy.mActivePasswordNumeric = Integer.parseInt( 1110 parser.getAttributeValue(null, "numeric")); 1111 policy.mActivePasswordSymbols = Integer.parseInt( 1112 parser.getAttributeValue(null, "symbols")); 1113 policy.mActivePasswordNonLetter = Integer.parseInt( 1114 parser.getAttributeValue(null, "nonletter")); 1115 XmlUtils.skipCurrentTag(parser); 1116 } else if (LOCK_TASK_COMPONENTS_XML.equals(tag)) { 1117 policy.mLockTaskComponents.add 1118 (ComponentName.unflattenFromString 1119 (parser.getAttributeValue(null, "name"))); 1120 XmlUtils.skipCurrentTag(parser); 1121 } else { 1122 Slog.w(LOG_TAG, "Unknown tag: " + tag); 1123 XmlUtils.skipCurrentTag(parser); 1124 } 1125 } 1126 } catch (NullPointerException e) { 1127 Slog.w(LOG_TAG, "failed parsing " + file + " " + e); 1128 } catch (NumberFormatException e) { 1129 Slog.w(LOG_TAG, "failed parsing " + file + " " + e); 1130 } catch (XmlPullParserException e) { 1131 Slog.w(LOG_TAG, "failed parsing " + file + " " + e); 1132 } catch (FileNotFoundException e) { 1133 // Don't be noisy, this is normal if we haven't defined any policies. 1134 } catch (IOException e) { 1135 Slog.w(LOG_TAG, "failed parsing " + file + " " + e); 1136 } catch (IndexOutOfBoundsException e) { 1137 Slog.w(LOG_TAG, "failed parsing " + file + " " + e); 1138 } 1139 try { 1140 if (stream != null) { 1141 stream.close(); 1142 } 1143 } catch (IOException e) { 1144 // Ignore 1145 } 1146 1147 // Validate that what we stored for the password quality matches 1148 // sufficiently what is currently set. Note that this is only 1149 // a sanity check in case the two get out of sync; this should 1150 // never normally happen. 1151 LockPatternUtils utils = new LockPatternUtils(mContext); 1152 if (utils.getActivePasswordQuality() < policy.mActivePasswordQuality) { 1153 Slog.w(LOG_TAG, "Active password quality 0x" 1154 + Integer.toHexString(policy.mActivePasswordQuality) 1155 + " does not match actual quality 0x" 1156 + Integer.toHexString(utils.getActivePasswordQuality())); 1157 policy.mActivePasswordQuality = DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED; 1158 policy.mActivePasswordLength = 0; 1159 policy.mActivePasswordUpperCase = 0; 1160 policy.mActivePasswordLowerCase = 0; 1161 policy.mActivePasswordLetters = 0; 1162 policy.mActivePasswordNumeric = 0; 1163 policy.mActivePasswordSymbols = 0; 1164 policy.mActivePasswordNonLetter = 0; 1165 } 1166 1167 validatePasswordOwnerLocked(policy); 1168 syncDeviceCapabilitiesLocked(policy); 1169 updateMaximumTimeToLockLocked(policy); 1170 } 1171 1172 static void validateQualityConstant(int quality) { 1173 switch (quality) { 1174 case DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED: 1175 case DevicePolicyManager.PASSWORD_QUALITY_BIOMETRIC_WEAK: 1176 case DevicePolicyManager.PASSWORD_QUALITY_SOMETHING: 1177 case DevicePolicyManager.PASSWORD_QUALITY_NUMERIC: 1178 case DevicePolicyManager.PASSWORD_QUALITY_ALPHABETIC: 1179 case DevicePolicyManager.PASSWORD_QUALITY_ALPHANUMERIC: 1180 case DevicePolicyManager.PASSWORD_QUALITY_COMPLEX: 1181 return; 1182 } 1183 throw new IllegalArgumentException("Invalid quality constant: 0x" 1184 + Integer.toHexString(quality)); 1185 } 1186 1187 void validatePasswordOwnerLocked(DevicePolicyData policy) { 1188 if (policy.mPasswordOwner >= 0) { 1189 boolean haveOwner = false; 1190 for (int i = policy.mAdminList.size() - 1; i >= 0; i--) { 1191 if (policy.mAdminList.get(i).getUid() == policy.mPasswordOwner) { 1192 haveOwner = true; 1193 break; 1194 } 1195 } 1196 if (!haveOwner) { 1197 Slog.w(LOG_TAG, "Previous password owner " + policy.mPasswordOwner 1198 + " no longer active; disabling"); 1199 policy.mPasswordOwner = -1; 1200 } 1201 } 1202 } 1203 1204 /** 1205 * Pushes down policy information to the system for any policies related to general device 1206 * capabilities that need to be enforced by lower level services (e.g. Camera services). 1207 */ 1208 void syncDeviceCapabilitiesLocked(DevicePolicyData policy) { 1209 // Ensure the status of the camera is synced down to the system. Interested native services 1210 // should monitor this value and act accordingly. 1211 boolean systemState = SystemProperties.getBoolean(SYSTEM_PROP_DISABLE_CAMERA, false); 1212 boolean cameraDisabled = getCameraDisabled(null, policy.mUserHandle); 1213 if (cameraDisabled != systemState) { 1214 long token = Binder.clearCallingIdentity(); 1215 try { 1216 String value = cameraDisabled ? "1" : "0"; 1217 if (DBG) Slog.v(LOG_TAG, "Change in camera state [" 1218 + SYSTEM_PROP_DISABLE_CAMERA + "] = " + value); 1219 SystemProperties.set(SYSTEM_PROP_DISABLE_CAMERA, value); 1220 } finally { 1221 Binder.restoreCallingIdentity(token); 1222 } 1223 } 1224 } 1225 1226 public void systemReady() { 1227 if (!mHasFeature) { 1228 return; 1229 } 1230 synchronized (this) { 1231 loadSettingsLocked(getUserData(UserHandle.USER_OWNER), UserHandle.USER_OWNER); 1232 loadDeviceOwner(); 1233 } 1234 cleanUpOldUsers(); 1235 mAppOpsService = IAppOpsService.Stub.asInterface( 1236 ServiceManager.getService(Context.APP_OPS_SERVICE)); 1237 if (mDeviceOwner != null) { 1238 if (mDeviceOwner.hasDeviceOwner()) { 1239 try { 1240 mAppOpsService.setDeviceOwner(mDeviceOwner.getDeviceOwnerPackageName()); 1241 } catch (RemoteException e) { 1242 Log.w(LOG_TAG, "Unable to notify AppOpsService of DeviceOwner", e); 1243 } 1244 } 1245 for (Integer i : mDeviceOwner.getProfileOwnerKeys()) { 1246 try { 1247 mAppOpsService.setProfileOwner(mDeviceOwner.getProfileOwnerPackageName(i), i); 1248 } catch (RemoteException e) { 1249 Log.w(LOG_TAG, "Unable to notify AppOpsService of ProfileOwner", e); 1250 } 1251 } 1252 } 1253 } 1254 1255 private void cleanUpOldUsers() { 1256 // This is needed in case the broadcast {@link Intent.ACTION_USER_REMOVED} was not handled 1257 // before reboot 1258 Set<Integer> usersWithProfileOwners; 1259 Set<Integer> usersWithData; 1260 synchronized(this) { 1261 usersWithProfileOwners = mDeviceOwner != null 1262 ? mDeviceOwner.getProfileOwnerKeys() : new HashSet<Integer>(); 1263 usersWithData = new HashSet<Integer>(); 1264 for (int i = 0; i < mUserData.size(); i++) { 1265 usersWithData.add(mUserData.keyAt(i)); 1266 } 1267 } 1268 List<UserInfo> allUsers = mUserManager.getUsers(); 1269 1270 Set<Integer> deletedUsers = new HashSet<Integer>(); 1271 deletedUsers.addAll(usersWithProfileOwners); 1272 deletedUsers.addAll(usersWithData); 1273 for (UserInfo userInfo : allUsers) { 1274 deletedUsers.remove(userInfo.id); 1275 } 1276 for (Integer userId : deletedUsers) { 1277 removeUserData(userId); 1278 } 1279 } 1280 1281 private void handlePasswordExpirationNotification(int userHandle) { 1282 synchronized (this) { 1283 final long now = System.currentTimeMillis(); 1284 1285 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 1286 for (UserInfo ui : profiles) { 1287 int profileUserHandle = ui.getUserHandle().getIdentifier(); 1288 final DevicePolicyData policy = getUserData(profileUserHandle); 1289 final int count = policy.mAdminList.size(); 1290 if (count > 0) { 1291 for (int i = 0; i < count; i++) { 1292 final ActiveAdmin admin = policy.mAdminList.get(i); 1293 if (admin.info.usesPolicy(DeviceAdminInfo.USES_POLICY_EXPIRE_PASSWORD) 1294 && admin.passwordExpirationTimeout > 0L 1295 && now >= admin.passwordExpirationDate - EXPIRATION_GRACE_PERIOD_MS 1296 && admin.passwordExpirationDate > 0L) { 1297 sendAdminCommandLocked(admin, 1298 DeviceAdminReceiver.ACTION_PASSWORD_EXPIRING); 1299 } 1300 } 1301 } 1302 } 1303 setExpirationAlarmCheckLocked(mContext, getUserData(userHandle)); 1304 } 1305 } 1306 1307 private void manageMonitoringCertificateNotification(Intent intent) { 1308 final NotificationManager notificationManager = getNotificationManager(); 1309 1310 final boolean hasCert = DevicePolicyManager.hasAnyCaCertsInstalled(); 1311 if (! hasCert) { 1312 if (intent.getAction().equals(KeyChain.ACTION_STORAGE_CHANGED)) { 1313 for (UserInfo user : mUserManager.getUsers()) { 1314 notificationManager.cancelAsUser( 1315 null, MONITORING_CERT_NOTIFICATION_ID, user.getUserHandle()); 1316 } 1317 } 1318 return; 1319 } 1320 final boolean isManaged = getDeviceOwner() != null; 1321 int smallIconId; 1322 String contentText; 1323 if (isManaged) { 1324 contentText = mContext.getString(R.string.ssl_ca_cert_noti_managed, 1325 getDeviceOwnerName()); 1326 smallIconId = R.drawable.stat_sys_certificate_info; 1327 } else { 1328 contentText = mContext.getString(R.string.ssl_ca_cert_noti_by_unknown); 1329 smallIconId = android.R.drawable.stat_sys_warning; 1330 } 1331 1332 Intent dialogIntent = new Intent(Settings.ACTION_MONITORING_CERT_INFO); 1333 dialogIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_CLEAR_TASK); 1334 dialogIntent.setPackage("com.android.settings"); 1335 // Notification will be sent individually to all users. The activity should start as 1336 // whichever user is current when it starts. 1337 PendingIntent notifyIntent = PendingIntent.getActivityAsUser(mContext, 0, dialogIntent, 1338 PendingIntent.FLAG_UPDATE_CURRENT, null, UserHandle.CURRENT); 1339 1340 Notification noti = new Notification.Builder(mContext) 1341 .setSmallIcon(smallIconId) 1342 .setContentTitle(mContext.getString(R.string.ssl_ca_cert_warning)) 1343 .setContentText(contentText) 1344 .setContentIntent(notifyIntent) 1345 .setPriority(Notification.PRIORITY_HIGH) 1346 .setShowWhen(false) 1347 .build(); 1348 1349 // If this is a boot intent, this will fire for each user. But if this is a storage changed 1350 // intent, it will fire once, so we need to notify all users. 1351 if (intent.getAction().equals(KeyChain.ACTION_STORAGE_CHANGED)) { 1352 for (UserInfo user : mUserManager.getUsers()) { 1353 notificationManager.notifyAsUser( 1354 null, MONITORING_CERT_NOTIFICATION_ID, noti, user.getUserHandle()); 1355 } 1356 } else { 1357 notificationManager.notifyAsUser( 1358 null, MONITORING_CERT_NOTIFICATION_ID, noti, UserHandle.CURRENT); 1359 } 1360 } 1361 1362 /** 1363 * @param adminReceiver The admin to add 1364 * @param refreshing true = update an active admin, no error 1365 */ 1366 public void setActiveAdmin(ComponentName adminReceiver, boolean refreshing, int userHandle) { 1367 if (!mHasFeature) { 1368 return; 1369 } 1370 mContext.enforceCallingOrSelfPermission( 1371 android.Manifest.permission.MANAGE_DEVICE_ADMINS, null); 1372 enforceCrossUserPermission(userHandle); 1373 1374 DevicePolicyData policy = getUserData(userHandle); 1375 DeviceAdminInfo info = findAdmin(adminReceiver, userHandle); 1376 if (info == null) { 1377 throw new IllegalArgumentException("Bad admin: " + adminReceiver); 1378 } 1379 synchronized (this) { 1380 long ident = Binder.clearCallingIdentity(); 1381 try { 1382 if (!refreshing 1383 && getActiveAdminUncheckedLocked(adminReceiver, userHandle) != null) { 1384 throw new IllegalArgumentException("Admin is already added"); 1385 } 1386 ActiveAdmin newAdmin = new ActiveAdmin(info); 1387 policy.mAdminMap.put(adminReceiver, newAdmin); 1388 int replaceIndex = -1; 1389 if (refreshing) { 1390 final int N = policy.mAdminList.size(); 1391 for (int i=0; i < N; i++) { 1392 ActiveAdmin oldAdmin = policy.mAdminList.get(i); 1393 if (oldAdmin.info.getComponent().equals(adminReceiver)) { 1394 replaceIndex = i; 1395 break; 1396 } 1397 } 1398 } 1399 if (replaceIndex == -1) { 1400 policy.mAdminList.add(newAdmin); 1401 enableIfNecessary(info.getPackageName(), userHandle); 1402 } else { 1403 policy.mAdminList.set(replaceIndex, newAdmin); 1404 } 1405 saveSettingsLocked(userHandle); 1406 sendAdminCommandLocked(newAdmin, DeviceAdminReceiver.ACTION_DEVICE_ADMIN_ENABLED); 1407 } finally { 1408 Binder.restoreCallingIdentity(ident); 1409 } 1410 } 1411 } 1412 1413 public boolean isAdminActive(ComponentName adminReceiver, int userHandle) { 1414 if (!mHasFeature) { 1415 return false; 1416 } 1417 enforceCrossUserPermission(userHandle); 1418 synchronized (this) { 1419 return getActiveAdminUncheckedLocked(adminReceiver, userHandle) != null; 1420 } 1421 } 1422 1423 public boolean hasGrantedPolicy(ComponentName adminReceiver, int policyId, int userHandle) { 1424 if (!mHasFeature) { 1425 return false; 1426 } 1427 enforceCrossUserPermission(userHandle); 1428 synchronized (this) { 1429 ActiveAdmin administrator = getActiveAdminUncheckedLocked(adminReceiver, userHandle); 1430 if (administrator == null) { 1431 throw new SecurityException("No active admin " + adminReceiver); 1432 } 1433 return administrator.info.usesPolicy(policyId); 1434 } 1435 } 1436 1437 @SuppressWarnings("unchecked") 1438 public List<ComponentName> getActiveAdmins(int userHandle) { 1439 if (!mHasFeature) { 1440 return Collections.EMPTY_LIST; 1441 } 1442 1443 enforceCrossUserPermission(userHandle); 1444 synchronized (this) { 1445 DevicePolicyData policy = getUserData(userHandle); 1446 final int N = policy.mAdminList.size(); 1447 if (N <= 0) { 1448 return null; 1449 } 1450 ArrayList<ComponentName> res = new ArrayList<ComponentName>(N); 1451 for (int i=0; i<N; i++) { 1452 res.add(policy.mAdminList.get(i).info.getComponent()); 1453 } 1454 return res; 1455 } 1456 } 1457 1458 public boolean packageHasActiveAdmins(String packageName, int userHandle) { 1459 if (!mHasFeature) { 1460 return false; 1461 } 1462 enforceCrossUserPermission(userHandle); 1463 synchronized (this) { 1464 DevicePolicyData policy = getUserData(userHandle); 1465 final int N = policy.mAdminList.size(); 1466 for (int i=0; i<N; i++) { 1467 if (policy.mAdminList.get(i).info.getPackageName().equals(packageName)) { 1468 return true; 1469 } 1470 } 1471 return false; 1472 } 1473 } 1474 1475 public void removeActiveAdmin(ComponentName adminReceiver, int userHandle) { 1476 if (!mHasFeature) { 1477 return; 1478 } 1479 enforceCrossUserPermission(userHandle); 1480 synchronized (this) { 1481 ActiveAdmin admin = getActiveAdminUncheckedLocked(adminReceiver, userHandle); 1482 if (admin == null) { 1483 return; 1484 } 1485 if (admin.getUid() != Binder.getCallingUid()) { 1486 // If trying to remove device owner, refuse when the caller is not the owner. 1487 if (isDeviceOwner(adminReceiver.getPackageName())) { 1488 return; 1489 } 1490 mContext.enforceCallingOrSelfPermission( 1491 android.Manifest.permission.MANAGE_DEVICE_ADMINS, null); 1492 } 1493 long ident = Binder.clearCallingIdentity(); 1494 try { 1495 removeActiveAdminLocked(adminReceiver, userHandle); 1496 } finally { 1497 Binder.restoreCallingIdentity(ident); 1498 } 1499 } 1500 } 1501 1502 public void setPasswordQuality(ComponentName who, int quality, int userHandle) { 1503 if (!mHasFeature) { 1504 return; 1505 } 1506 validateQualityConstant(quality); 1507 enforceCrossUserPermission(userHandle); 1508 1509 synchronized (this) { 1510 if (who == null) { 1511 throw new NullPointerException("ComponentName is null"); 1512 } 1513 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 1514 DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD); 1515 if (ap.passwordQuality != quality) { 1516 ap.passwordQuality = quality; 1517 saveSettingsLocked(userHandle); 1518 } 1519 } 1520 } 1521 1522 public int getPasswordQuality(ComponentName who, int userHandle) { 1523 if (!mHasFeature) { 1524 return DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED; 1525 } 1526 enforceCrossUserPermission(userHandle); 1527 synchronized (this) { 1528 int mode = DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED; 1529 1530 if (who != null) { 1531 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 1532 return admin != null ? admin.passwordQuality : mode; 1533 } 1534 1535 // Return strictest policy for this user and profiles that are visible from this user. 1536 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 1537 for (UserInfo userInfo : profiles) { 1538 DevicePolicyData policy = getUserData(userInfo.getUserHandle().getIdentifier()); 1539 final int N = policy.mAdminList.size(); 1540 for (int i=0; i<N; i++) { 1541 ActiveAdmin admin = policy.mAdminList.get(i); 1542 if (mode < admin.passwordQuality) { 1543 mode = admin.passwordQuality; 1544 } 1545 } 1546 } 1547 return mode; 1548 } 1549 } 1550 1551 public void setPasswordMinimumLength(ComponentName who, int length, int userHandle) { 1552 if (!mHasFeature) { 1553 return; 1554 } 1555 enforceCrossUserPermission(userHandle); 1556 synchronized (this) { 1557 if (who == null) { 1558 throw new NullPointerException("ComponentName is null"); 1559 } 1560 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 1561 DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD); 1562 if (ap.minimumPasswordLength != length) { 1563 ap.minimumPasswordLength = length; 1564 saveSettingsLocked(userHandle); 1565 } 1566 } 1567 } 1568 1569 public int getPasswordMinimumLength(ComponentName who, int userHandle) { 1570 if (!mHasFeature) { 1571 return 0; 1572 } 1573 enforceCrossUserPermission(userHandle); 1574 synchronized (this) { 1575 int length = 0; 1576 1577 if (who != null) { 1578 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 1579 return admin != null ? admin.minimumPasswordLength : length; 1580 } 1581 1582 // Return strictest policy for this user and profiles that are visible from this user. 1583 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 1584 for (UserInfo userInfo : profiles) { 1585 DevicePolicyData policy = getUserData(userInfo.getUserHandle().getIdentifier()); 1586 final int N = policy.mAdminList.size(); 1587 for (int i=0; i<N; i++) { 1588 ActiveAdmin admin = policy.mAdminList.get(i); 1589 if (length < admin.minimumPasswordLength) { 1590 length = admin.minimumPasswordLength; 1591 } 1592 } 1593 } 1594 return length; 1595 } 1596 } 1597 1598 public void setPasswordHistoryLength(ComponentName who, int length, int userHandle) { 1599 if (!mHasFeature) { 1600 return; 1601 } 1602 enforceCrossUserPermission(userHandle); 1603 synchronized (this) { 1604 if (who == null) { 1605 throw new NullPointerException("ComponentName is null"); 1606 } 1607 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 1608 DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD); 1609 if (ap.passwordHistoryLength != length) { 1610 ap.passwordHistoryLength = length; 1611 saveSettingsLocked(userHandle); 1612 } 1613 } 1614 } 1615 1616 public int getPasswordHistoryLength(ComponentName who, int userHandle) { 1617 if (!mHasFeature) { 1618 return 0; 1619 } 1620 enforceCrossUserPermission(userHandle); 1621 synchronized (this) { 1622 int length = 0; 1623 1624 if (who != null) { 1625 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 1626 return admin != null ? admin.passwordHistoryLength : length; 1627 } 1628 1629 // Return strictest policy for this user and profiles that are visible from this user. 1630 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 1631 for (UserInfo userInfo : profiles) { 1632 DevicePolicyData policy = getUserData(userInfo.getUserHandle().getIdentifier()); 1633 final int N = policy.mAdminList.size(); 1634 for (int i = 0; i < N; i++) { 1635 ActiveAdmin admin = policy.mAdminList.get(i); 1636 if (length < admin.passwordHistoryLength) { 1637 length = admin.passwordHistoryLength; 1638 } 1639 } 1640 } 1641 return length; 1642 } 1643 } 1644 1645 public void setPasswordExpirationTimeout(ComponentName who, long timeout, int userHandle) { 1646 if (!mHasFeature) { 1647 return; 1648 } 1649 enforceCrossUserPermission(userHandle); 1650 synchronized (this) { 1651 if (who == null) { 1652 throw new NullPointerException("ComponentName is null"); 1653 } 1654 if (timeout < 0) { 1655 throw new IllegalArgumentException("Timeout must be >= 0 ms"); 1656 } 1657 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 1658 DeviceAdminInfo.USES_POLICY_EXPIRE_PASSWORD); 1659 // Calling this API automatically bumps the expiration date 1660 final long expiration = timeout > 0L ? (timeout + System.currentTimeMillis()) : 0L; 1661 ap.passwordExpirationDate = expiration; 1662 ap.passwordExpirationTimeout = timeout; 1663 if (timeout > 0L) { 1664 Slog.w(LOG_TAG, "setPasswordExpiration(): password will expire on " 1665 + DateFormat.getDateTimeInstance(DateFormat.DEFAULT, DateFormat.DEFAULT) 1666 .format(new Date(expiration))); 1667 } 1668 saveSettingsLocked(userHandle); 1669 // in case this is the first one 1670 setExpirationAlarmCheckLocked(mContext, getUserData(userHandle)); 1671 } 1672 } 1673 1674 /** 1675 * Return a single admin's expiration cycle time, or the min of all cycle times. 1676 * Returns 0 if not configured. 1677 */ 1678 public long getPasswordExpirationTimeout(ComponentName who, int userHandle) { 1679 if (!mHasFeature) { 1680 return 0L; 1681 } 1682 enforceCrossUserPermission(userHandle); 1683 synchronized (this) { 1684 long timeout = 0L; 1685 1686 if (who != null) { 1687 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 1688 return admin != null ? admin.passwordExpirationTimeout : timeout; 1689 } 1690 1691 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 1692 for (UserInfo userInfo : profiles) { 1693 DevicePolicyData policy = getUserData(userInfo.getUserHandle().getIdentifier()); 1694 final int N = policy.mAdminList.size(); 1695 for (int i = 0; i < N; i++) { 1696 ActiveAdmin admin = policy.mAdminList.get(i); 1697 if (timeout == 0L || (admin.passwordExpirationTimeout != 0L 1698 && timeout > admin.passwordExpirationTimeout)) { 1699 timeout = admin.passwordExpirationTimeout; 1700 } 1701 } 1702 } 1703 return timeout; 1704 } 1705 } 1706 1707 /** 1708 * Return a single admin's expiration date/time, or the min (soonest) for all admins. 1709 * Returns 0 if not configured. 1710 */ 1711 private long getPasswordExpirationLocked(ComponentName who, int userHandle) { 1712 long timeout = 0L; 1713 1714 if (who != null) { 1715 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 1716 return admin != null ? admin.passwordExpirationDate : timeout; 1717 } 1718 1719 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 1720 for (UserInfo userInfo : profiles) { 1721 DevicePolicyData policy = getUserData(userInfo.getUserHandle().getIdentifier()); 1722 final int N = policy.mAdminList.size(); 1723 for (int i = 0; i < N; i++) { 1724 ActiveAdmin admin = policy.mAdminList.get(i); 1725 if (timeout == 0L || (admin.passwordExpirationDate != 0 1726 && timeout > admin.passwordExpirationDate)) { 1727 timeout = admin.passwordExpirationDate; 1728 } 1729 } 1730 } 1731 return timeout; 1732 } 1733 1734 public long getPasswordExpiration(ComponentName who, int userHandle) { 1735 if (!mHasFeature) { 1736 return 0L; 1737 } 1738 enforceCrossUserPermission(userHandle); 1739 synchronized (this) { 1740 return getPasswordExpirationLocked(who, userHandle); 1741 } 1742 } 1743 1744 public void setPasswordMinimumUpperCase(ComponentName who, int length, int userHandle) { 1745 if (!mHasFeature) { 1746 return; 1747 } 1748 enforceCrossUserPermission(userHandle); 1749 synchronized (this) { 1750 if (who == null) { 1751 throw new NullPointerException("ComponentName is null"); 1752 } 1753 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 1754 DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD); 1755 if (ap.minimumPasswordUpperCase != length) { 1756 ap.minimumPasswordUpperCase = length; 1757 saveSettingsLocked(userHandle); 1758 } 1759 } 1760 } 1761 1762 public int getPasswordMinimumUpperCase(ComponentName who, int userHandle) { 1763 if (!mHasFeature) { 1764 return 0; 1765 } 1766 enforceCrossUserPermission(userHandle); 1767 synchronized (this) { 1768 int length = 0; 1769 1770 if (who != null) { 1771 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 1772 return admin != null ? admin.minimumPasswordUpperCase : length; 1773 } 1774 1775 // Return strictest policy for this user and profiles that are visible from this user. 1776 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 1777 for (UserInfo userInfo : profiles) { 1778 DevicePolicyData policy = getUserData(userInfo.getUserHandle().getIdentifier()); 1779 final int N = policy.mAdminList.size(); 1780 for (int i=0; i<N; i++) { 1781 ActiveAdmin admin = policy.mAdminList.get(i); 1782 if (length < admin.minimumPasswordUpperCase) { 1783 length = admin.minimumPasswordUpperCase; 1784 } 1785 } 1786 } 1787 return length; 1788 } 1789 } 1790 1791 public void setPasswordMinimumLowerCase(ComponentName who, int length, int userHandle) { 1792 enforceCrossUserPermission(userHandle); 1793 synchronized (this) { 1794 if (who == null) { 1795 throw new NullPointerException("ComponentName is null"); 1796 } 1797 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 1798 DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD); 1799 if (ap.minimumPasswordLowerCase != length) { 1800 ap.minimumPasswordLowerCase = length; 1801 saveSettingsLocked(userHandle); 1802 } 1803 } 1804 } 1805 1806 public int getPasswordMinimumLowerCase(ComponentName who, int userHandle) { 1807 if (!mHasFeature) { 1808 return 0; 1809 } 1810 enforceCrossUserPermission(userHandle); 1811 synchronized (this) { 1812 int length = 0; 1813 1814 if (who != null) { 1815 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 1816 return admin != null ? admin.minimumPasswordLowerCase : length; 1817 } 1818 1819 // Return strictest policy for this user and profiles that are visible from this user. 1820 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 1821 for (UserInfo userInfo : profiles) { 1822 DevicePolicyData policy = getUserData(userInfo.getUserHandle().getIdentifier()); 1823 final int N = policy.mAdminList.size(); 1824 for (int i=0; i<N; i++) { 1825 ActiveAdmin admin = policy.mAdminList.get(i); 1826 if (length < admin.minimumPasswordLowerCase) { 1827 length = admin.minimumPasswordLowerCase; 1828 } 1829 } 1830 } 1831 return length; 1832 } 1833 } 1834 1835 public void setPasswordMinimumLetters(ComponentName who, int length, int userHandle) { 1836 if (!mHasFeature) { 1837 return; 1838 } 1839 enforceCrossUserPermission(userHandle); 1840 synchronized (this) { 1841 if (who == null) { 1842 throw new NullPointerException("ComponentName is null"); 1843 } 1844 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 1845 DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD); 1846 if (ap.minimumPasswordLetters != length) { 1847 ap.minimumPasswordLetters = length; 1848 saveSettingsLocked(userHandle); 1849 } 1850 } 1851 } 1852 1853 public int getPasswordMinimumLetters(ComponentName who, int userHandle) { 1854 if (!mHasFeature) { 1855 return 0; 1856 } 1857 enforceCrossUserPermission(userHandle); 1858 synchronized (this) { 1859 int length = 0; 1860 1861 if (who != null) { 1862 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 1863 return admin != null ? admin.minimumPasswordLetters : length; 1864 } 1865 1866 // Return strictest policy for this user and profiles that are visible from this user. 1867 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 1868 for (UserInfo userInfo : profiles) { 1869 DevicePolicyData policy = getUserData(userInfo.getUserHandle().getIdentifier()); 1870 final int N = policy.mAdminList.size(); 1871 for (int i=0; i<N; i++) { 1872 ActiveAdmin admin = policy.mAdminList.get(i); 1873 if (length < admin.minimumPasswordLetters) { 1874 length = admin.minimumPasswordLetters; 1875 } 1876 } 1877 } 1878 return length; 1879 } 1880 } 1881 1882 public void setPasswordMinimumNumeric(ComponentName who, int length, int userHandle) { 1883 if (!mHasFeature) { 1884 return; 1885 } 1886 enforceCrossUserPermission(userHandle); 1887 synchronized (this) { 1888 if (who == null) { 1889 throw new NullPointerException("ComponentName is null"); 1890 } 1891 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 1892 DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD); 1893 if (ap.minimumPasswordNumeric != length) { 1894 ap.minimumPasswordNumeric = length; 1895 saveSettingsLocked(userHandle); 1896 } 1897 } 1898 } 1899 1900 public int getPasswordMinimumNumeric(ComponentName who, int userHandle) { 1901 if (!mHasFeature) { 1902 return 0; 1903 } 1904 enforceCrossUserPermission(userHandle); 1905 synchronized (this) { 1906 int length = 0; 1907 1908 if (who != null) { 1909 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 1910 return admin != null ? admin.minimumPasswordNumeric : length; 1911 } 1912 1913 // Return strictest policy for this user and profiles that are visible from this user. 1914 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 1915 for (UserInfo userInfo : profiles) { 1916 DevicePolicyData policy = getUserData(userInfo.getUserHandle().getIdentifier()); 1917 final int N = policy.mAdminList.size(); 1918 for (int i = 0; i < N; i++) { 1919 ActiveAdmin admin = policy.mAdminList.get(i); 1920 if (length < admin.minimumPasswordNumeric) { 1921 length = admin.minimumPasswordNumeric; 1922 } 1923 } 1924 } 1925 return length; 1926 } 1927 } 1928 1929 public void setPasswordMinimumSymbols(ComponentName who, int length, int userHandle) { 1930 if (!mHasFeature) { 1931 return; 1932 } 1933 enforceCrossUserPermission(userHandle); 1934 synchronized (this) { 1935 if (who == null) { 1936 throw new NullPointerException("ComponentName is null"); 1937 } 1938 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 1939 DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD); 1940 if (ap.minimumPasswordSymbols != length) { 1941 ap.minimumPasswordSymbols = length; 1942 saveSettingsLocked(userHandle); 1943 } 1944 } 1945 } 1946 1947 public int getPasswordMinimumSymbols(ComponentName who, int userHandle) { 1948 if (!mHasFeature) { 1949 return 0; 1950 } 1951 enforceCrossUserPermission(userHandle); 1952 synchronized (this) { 1953 int length = 0; 1954 1955 if (who != null) { 1956 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 1957 return admin != null ? admin.minimumPasswordSymbols : length; 1958 } 1959 1960 // Return strictest policy for this user and profiles that are visible from this user. 1961 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 1962 for (UserInfo userInfo : profiles) { 1963 DevicePolicyData policy = getUserData(userInfo.getUserHandle().getIdentifier()); 1964 final int N = policy.mAdminList.size(); 1965 for (int i=0; i<N; i++) { 1966 ActiveAdmin admin = policy.mAdminList.get(i); 1967 if (length < admin.minimumPasswordSymbols) { 1968 length = admin.minimumPasswordSymbols; 1969 } 1970 } 1971 } 1972 return length; 1973 } 1974 } 1975 1976 public void setPasswordMinimumNonLetter(ComponentName who, int length, int userHandle) { 1977 if (!mHasFeature) { 1978 return; 1979 } 1980 enforceCrossUserPermission(userHandle); 1981 synchronized (this) { 1982 if (who == null) { 1983 throw new NullPointerException("ComponentName is null"); 1984 } 1985 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 1986 DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD); 1987 if (ap.minimumPasswordNonLetter != length) { 1988 ap.minimumPasswordNonLetter = length; 1989 saveSettingsLocked(userHandle); 1990 } 1991 } 1992 } 1993 1994 public int getPasswordMinimumNonLetter(ComponentName who, int userHandle) { 1995 if (!mHasFeature) { 1996 return 0; 1997 } 1998 enforceCrossUserPermission(userHandle); 1999 synchronized (this) { 2000 int length = 0; 2001 2002 if (who != null) { 2003 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 2004 return admin != null ? admin.minimumPasswordNonLetter : length; 2005 } 2006 2007 // Return strictest policy for this user and profiles that are visible from this user. 2008 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 2009 for (UserInfo userInfo : profiles) { 2010 DevicePolicyData policy = getUserData(userInfo.getUserHandle().getIdentifier()); 2011 final int N = policy.mAdminList.size(); 2012 for (int i=0; i<N; i++) { 2013 ActiveAdmin admin = policy.mAdminList.get(i); 2014 if (length < admin.minimumPasswordNonLetter) { 2015 length = admin.minimumPasswordNonLetter; 2016 } 2017 } 2018 } 2019 return length; 2020 } 2021 } 2022 2023 public boolean isActivePasswordSufficient(int userHandle) { 2024 if (!mHasFeature) { 2025 return true; 2026 } 2027 enforceCrossUserPermission(userHandle); 2028 2029 synchronized (this) { 2030 2031 // The active password is stored in the user that runs the launcher 2032 // If the user this is called from is part of a profile group, that is the parent 2033 // of the group. 2034 UserInfo parent = getProfileParent(userHandle); 2035 int id = parent == null ? userHandle : parent.id; 2036 DevicePolicyData policy = getUserData(id); 2037 2038 // This API can only be called by an active device admin, 2039 // so try to retrieve it to check that the caller is one. 2040 getActiveAdminForCallerLocked(null, 2041 DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD); 2042 if (policy.mActivePasswordQuality < getPasswordQuality(null, userHandle) 2043 || policy.mActivePasswordLength < getPasswordMinimumLength(null, userHandle)) { 2044 return false; 2045 } 2046 if (policy.mActivePasswordQuality != DevicePolicyManager.PASSWORD_QUALITY_COMPLEX) { 2047 return true; 2048 } 2049 return policy.mActivePasswordUpperCase >= getPasswordMinimumUpperCase(null, userHandle) 2050 && policy.mActivePasswordLowerCase >= getPasswordMinimumLowerCase(null, userHandle) 2051 && policy.mActivePasswordLetters >= getPasswordMinimumLetters(null, userHandle) 2052 && policy.mActivePasswordNumeric >= getPasswordMinimumNumeric(null, userHandle) 2053 && policy.mActivePasswordSymbols >= getPasswordMinimumSymbols(null, userHandle) 2054 && policy.mActivePasswordNonLetter >= getPasswordMinimumNonLetter(null, userHandle); 2055 } 2056 } 2057 2058 public int getCurrentFailedPasswordAttempts(int userHandle) { 2059 synchronized (this) { 2060 // This API can only be called by an active device admin, 2061 // so try to retrieve it to check that the caller is one. 2062 getActiveAdminForCallerLocked(null, 2063 DeviceAdminInfo.USES_POLICY_WATCH_LOGIN); 2064 2065 // The active password is stored in the parent. 2066 DevicePolicyData policy = getUserData(getProfileParent(userHandle).id); 2067 2068 return policy.mFailedPasswordAttempts; 2069 } 2070 } 2071 2072 public void setMaximumFailedPasswordsForWipe(ComponentName who, int num, int userHandle) { 2073 if (!mHasFeature) { 2074 return; 2075 } 2076 enforceCrossUserPermission(userHandle); 2077 synchronized (this) { 2078 if (who == null) { 2079 throw new NullPointerException("ComponentName is null"); 2080 } 2081 // This API can only be called by an active device admin, 2082 // so try to retrieve it to check that the caller is one. 2083 getActiveAdminForCallerLocked(who, 2084 DeviceAdminInfo.USES_POLICY_WIPE_DATA); 2085 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 2086 DeviceAdminInfo.USES_POLICY_WATCH_LOGIN); 2087 if (ap.maximumFailedPasswordsForWipe != num) { 2088 ap.maximumFailedPasswordsForWipe = num; 2089 saveSettingsLocked(userHandle); 2090 } 2091 } 2092 } 2093 2094 public int getMaximumFailedPasswordsForWipe(ComponentName who, int userHandle) { 2095 if (!mHasFeature) { 2096 return 0; 2097 } 2098 enforceCrossUserPermission(userHandle); 2099 synchronized (this) { 2100 int count = 0; 2101 2102 if (who != null) { 2103 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 2104 return admin != null ? admin.maximumFailedPasswordsForWipe : count; 2105 } 2106 2107 // Return strictest policy for this user and profiles that are visible from this user. 2108 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 2109 for (UserInfo userInfo : profiles) { 2110 DevicePolicyData policy = getUserData(userInfo.getUserHandle().getIdentifier()); 2111 final int N = policy.mAdminList.size(); 2112 for (int i=0; i<N; i++) { 2113 ActiveAdmin admin = policy.mAdminList.get(i); 2114 if (count == 0) { 2115 count = admin.maximumFailedPasswordsForWipe; 2116 } else if (admin.maximumFailedPasswordsForWipe != 0 2117 && count > admin.maximumFailedPasswordsForWipe) { 2118 count = admin.maximumFailedPasswordsForWipe; 2119 } 2120 } 2121 } 2122 return count; 2123 } 2124 } 2125 2126 public boolean resetPassword(String password, int flags, int userHandle) { 2127 if (!mHasFeature) { 2128 return false; 2129 } 2130 enforceCrossUserPermission(userHandle); 2131 enforceNotManagedProfile(userHandle, "reset the password"); 2132 2133 int quality; 2134 synchronized (this) { 2135 // This api can only be called by an active device admin, 2136 // so try to retrieve it to check that the caller is one. 2137 getActiveAdminForCallerLocked(null, 2138 DeviceAdminInfo.USES_POLICY_RESET_PASSWORD); 2139 quality = getPasswordQuality(null, userHandle); 2140 if (quality != DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED) { 2141 int realQuality = LockPatternUtils.computePasswordQuality(password); 2142 if (realQuality < quality 2143 && quality != DevicePolicyManager.PASSWORD_QUALITY_COMPLEX) { 2144 Slog.w(LOG_TAG, "resetPassword: password quality 0x" 2145 + Integer.toHexString(realQuality) 2146 + " does not meet required quality 0x" 2147 + Integer.toHexString(quality)); 2148 return false; 2149 } 2150 quality = Math.max(realQuality, quality); 2151 } 2152 int length = getPasswordMinimumLength(null, userHandle); 2153 if (password.length() < length) { 2154 Slog.w(LOG_TAG, "resetPassword: password length " + password.length() 2155 + " does not meet required length " + length); 2156 return false; 2157 } 2158 if (quality == DevicePolicyManager.PASSWORD_QUALITY_COMPLEX) { 2159 int letters = 0; 2160 int uppercase = 0; 2161 int lowercase = 0; 2162 int numbers = 0; 2163 int symbols = 0; 2164 int nonletter = 0; 2165 for (int i = 0; i < password.length(); i++) { 2166 char c = password.charAt(i); 2167 if (c >= 'A' && c <= 'Z') { 2168 letters++; 2169 uppercase++; 2170 } else if (c >= 'a' && c <= 'z') { 2171 letters++; 2172 lowercase++; 2173 } else if (c >= '0' && c <= '9') { 2174 numbers++; 2175 nonletter++; 2176 } else { 2177 symbols++; 2178 nonletter++; 2179 } 2180 } 2181 int neededLetters = getPasswordMinimumLetters(null, userHandle); 2182 if(letters < neededLetters) { 2183 Slog.w(LOG_TAG, "resetPassword: number of letters " + letters 2184 + " does not meet required number of letters " + neededLetters); 2185 return false; 2186 } 2187 int neededNumbers = getPasswordMinimumNumeric(null, userHandle); 2188 if (numbers < neededNumbers) { 2189 Slog.w(LOG_TAG, "resetPassword: number of numerical digits " + numbers 2190 + " does not meet required number of numerical digits " 2191 + neededNumbers); 2192 return false; 2193 } 2194 int neededLowerCase = getPasswordMinimumLowerCase(null, userHandle); 2195 if (lowercase < neededLowerCase) { 2196 Slog.w(LOG_TAG, "resetPassword: number of lowercase letters " + lowercase 2197 + " does not meet required number of lowercase letters " 2198 + neededLowerCase); 2199 return false; 2200 } 2201 int neededUpperCase = getPasswordMinimumUpperCase(null, userHandle); 2202 if (uppercase < neededUpperCase) { 2203 Slog.w(LOG_TAG, "resetPassword: number of uppercase letters " + uppercase 2204 + " does not meet required number of uppercase letters " 2205 + neededUpperCase); 2206 return false; 2207 } 2208 int neededSymbols = getPasswordMinimumSymbols(null, userHandle); 2209 if (symbols < neededSymbols) { 2210 Slog.w(LOG_TAG, "resetPassword: number of special symbols " + symbols 2211 + " does not meet required number of special symbols " + neededSymbols); 2212 return false; 2213 } 2214 int neededNonLetter = getPasswordMinimumNonLetter(null, userHandle); 2215 if (nonletter < neededNonLetter) { 2216 Slog.w(LOG_TAG, "resetPassword: number of non-letter characters " + nonletter 2217 + " does not meet required number of non-letter characters " 2218 + neededNonLetter); 2219 return false; 2220 } 2221 } 2222 } 2223 2224 int callingUid = Binder.getCallingUid(); 2225 DevicePolicyData policy = getUserData(userHandle); 2226 if (policy.mPasswordOwner >= 0 && policy.mPasswordOwner != callingUid) { 2227 Slog.w(LOG_TAG, "resetPassword: already set by another uid and not entered by user"); 2228 return false; 2229 } 2230 2231 // Don't do this with the lock held, because it is going to call 2232 // back in to the service. 2233 long ident = Binder.clearCallingIdentity(); 2234 try { 2235 LockPatternUtils utils = new LockPatternUtils(mContext); 2236 utils.saveLockPassword(password, quality, false, userHandle); 2237 synchronized (this) { 2238 int newOwner = (flags&DevicePolicyManager.RESET_PASSWORD_REQUIRE_ENTRY) 2239 != 0 ? callingUid : -1; 2240 if (policy.mPasswordOwner != newOwner) { 2241 policy.mPasswordOwner = newOwner; 2242 saveSettingsLocked(userHandle); 2243 } 2244 } 2245 } finally { 2246 Binder.restoreCallingIdentity(ident); 2247 } 2248 2249 return true; 2250 } 2251 2252 public void setMaximumTimeToLock(ComponentName who, long timeMs, int userHandle) { 2253 if (!mHasFeature) { 2254 return; 2255 } 2256 enforceCrossUserPermission(userHandle); 2257 synchronized (this) { 2258 if (who == null) { 2259 throw new NullPointerException("ComponentName is null"); 2260 } 2261 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 2262 DeviceAdminInfo.USES_POLICY_FORCE_LOCK); 2263 if (ap.maximumTimeToUnlock != timeMs) { 2264 ap.maximumTimeToUnlock = timeMs; 2265 saveSettingsLocked(userHandle); 2266 updateMaximumTimeToLockLocked(getUserData(userHandle)); 2267 } 2268 } 2269 } 2270 2271 void updateMaximumTimeToLockLocked(DevicePolicyData policy) { 2272 long timeMs = getMaximumTimeToLock(null, policy.mUserHandle); 2273 if (policy.mLastMaximumTimeToLock == timeMs) { 2274 return; 2275 } 2276 2277 long ident = Binder.clearCallingIdentity(); 2278 try { 2279 if (timeMs <= 0) { 2280 timeMs = Integer.MAX_VALUE; 2281 } else { 2282 // Make sure KEEP_SCREEN_ON is disabled, since that 2283 // would allow bypassing of the maximum time to lock. 2284 Settings.Global.putInt(mContext.getContentResolver(), 2285 Settings.Global.STAY_ON_WHILE_PLUGGED_IN, 0); 2286 } 2287 2288 policy.mLastMaximumTimeToLock = timeMs; 2289 2290 try { 2291 getIPowerManager().setMaximumScreenOffTimeoutFromDeviceAdmin((int)timeMs); 2292 } catch (RemoteException e) { 2293 Slog.w(LOG_TAG, "Failure talking with power manager", e); 2294 } 2295 } finally { 2296 Binder.restoreCallingIdentity(ident); 2297 } 2298 } 2299 2300 public long getMaximumTimeToLock(ComponentName who, int userHandle) { 2301 if (!mHasFeature) { 2302 return 0; 2303 } 2304 enforceCrossUserPermission(userHandle); 2305 synchronized (this) { 2306 long time = 0; 2307 2308 if (who != null) { 2309 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 2310 return admin != null ? admin.maximumTimeToUnlock : time; 2311 } 2312 2313 // Return strictest policy for this user and profiles that are visible from this user. 2314 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 2315 for (UserInfo userInfo : profiles) { 2316 DevicePolicyData policy = getUserData(userInfo.getUserHandle().getIdentifier()); 2317 final int N = policy.mAdminList.size(); 2318 for (int i=0; i<N; i++) { 2319 ActiveAdmin admin = policy.mAdminList.get(i); 2320 if (time == 0) { 2321 time = admin.maximumTimeToUnlock; 2322 } else if (admin.maximumTimeToUnlock != 0 2323 && time > admin.maximumTimeToUnlock) { 2324 time = admin.maximumTimeToUnlock; 2325 } 2326 } 2327 } 2328 return time; 2329 } 2330 } 2331 2332 public void lockNow() { 2333 if (!mHasFeature) { 2334 return; 2335 } 2336 synchronized (this) { 2337 // This API can only be called by an active device admin, 2338 // so try to retrieve it to check that the caller is one. 2339 getActiveAdminForCallerLocked(null, 2340 DeviceAdminInfo.USES_POLICY_FORCE_LOCK); 2341 lockNowUnchecked(); 2342 } 2343 } 2344 2345 private void lockNowUnchecked() { 2346 long ident = Binder.clearCallingIdentity(); 2347 try { 2348 // Power off the display 2349 getIPowerManager().goToSleep(SystemClock.uptimeMillis(), 2350 PowerManager.GO_TO_SLEEP_REASON_DEVICE_ADMIN, 0); 2351 // Ensure the device is locked 2352 getWindowManager().lockNow(null); 2353 } catch (RemoteException e) { 2354 } finally { 2355 Binder.restoreCallingIdentity(ident); 2356 } 2357 } 2358 2359 private boolean isExtStorageEncrypted() { 2360 String state = SystemProperties.get("vold.decrypt"); 2361 return !"".equals(state); 2362 } 2363 2364 public boolean installCaCert(byte[] certBuffer) throws RemoteException { 2365 mContext.enforceCallingOrSelfPermission(MANAGE_CA_CERTIFICATES, null); 2366 KeyChainConnection keyChainConnection = null; 2367 byte[] pemCert; 2368 try { 2369 X509Certificate cert = parseCert(certBuffer); 2370 pemCert = Credentials.convertToPem(cert); 2371 } catch (CertificateException ce) { 2372 Log.e(LOG_TAG, "Problem converting cert", ce); 2373 return false; 2374 } catch (IOException ioe) { 2375 Log.e(LOG_TAG, "Problem reading cert", ioe); 2376 return false; 2377 } 2378 try { 2379 keyChainConnection = KeyChain.bind(mContext); 2380 try { 2381 keyChainConnection.getService().installCaCertificate(pemCert); 2382 return true; 2383 } finally { 2384 if (keyChainConnection != null) { 2385 keyChainConnection.close(); 2386 keyChainConnection = null; 2387 } 2388 } 2389 } catch (InterruptedException e1) { 2390 Log.w(LOG_TAG, "installCaCertsToKeyChain(): ", e1); 2391 Thread.currentThread().interrupt(); 2392 } 2393 return false; 2394 } 2395 2396 private static X509Certificate parseCert(byte[] certBuffer) 2397 throws CertificateException, IOException { 2398 CertificateFactory certFactory = CertificateFactory.getInstance("X.509"); 2399 return (X509Certificate) certFactory.generateCertificate(new ByteArrayInputStream( 2400 certBuffer)); 2401 } 2402 2403 public void uninstallCaCert(final byte[] certBuffer) { 2404 mContext.enforceCallingOrSelfPermission(MANAGE_CA_CERTIFICATES, null); 2405 TrustedCertificateStore certStore = new TrustedCertificateStore(); 2406 String alias = null; 2407 try { 2408 X509Certificate cert = parseCert(certBuffer); 2409 alias = certStore.getCertificateAlias(cert); 2410 } catch (CertificateException ce) { 2411 Log.e(LOG_TAG, "Problem creating X509Certificate", ce); 2412 return; 2413 } catch (IOException ioe) { 2414 Log.e(LOG_TAG, "Problem reading certificate", ioe); 2415 return; 2416 } 2417 try { 2418 KeyChainConnection keyChainConnection = KeyChain.bind(mContext); 2419 IKeyChainService service = keyChainConnection.getService(); 2420 try { 2421 service.deleteCaCertificate(alias); 2422 } catch (RemoteException e) { 2423 Log.e(LOG_TAG, "from CaCertUninstaller: ", e); 2424 } finally { 2425 keyChainConnection.close(); 2426 keyChainConnection = null; 2427 } 2428 } catch (InterruptedException ie) { 2429 Log.w(LOG_TAG, "CaCertUninstaller: ", ie); 2430 Thread.currentThread().interrupt(); 2431 } 2432 } 2433 2434 void wipeDataLocked(int flags) { 2435 // If the SD card is encrypted and non-removable, we have to force a wipe. 2436 boolean forceExtWipe = !Environment.isExternalStorageRemovable() && isExtStorageEncrypted(); 2437 boolean wipeExtRequested = (flags&DevicePolicyManager.WIPE_EXTERNAL_STORAGE) != 0; 2438 2439 // Note: we can only do the wipe via ExternalStorageFormatter if the volume is not emulated. 2440 if ((forceExtWipe || wipeExtRequested) && !Environment.isExternalStorageEmulated()) { 2441 Intent intent = new Intent(ExternalStorageFormatter.FORMAT_AND_FACTORY_RESET); 2442 intent.putExtra(ExternalStorageFormatter.EXTRA_ALWAYS_RESET, true); 2443 intent.setComponent(ExternalStorageFormatter.COMPONENT_NAME); 2444 mWakeLock.acquire(10000); 2445 mContext.startService(intent); 2446 } else { 2447 try { 2448 RecoverySystem.rebootWipeUserData(mContext); 2449 } catch (IOException e) { 2450 Slog.w(LOG_TAG, "Failed requesting data wipe", e); 2451 } 2452 } 2453 } 2454 2455 public void wipeData(int flags, final int userHandle) { 2456 if (!mHasFeature) { 2457 return; 2458 } 2459 enforceCrossUserPermission(userHandle); 2460 if ((flags & DevicePolicyManager.WIPE_EXTERNAL_STORAGE) != 0) { 2461 enforceNotManagedProfile(userHandle, "wipe external storage"); 2462 } 2463 synchronized (this) { 2464 // This API can only be called by an active device admin, 2465 // so try to retrieve it to check that the caller is one. 2466 getActiveAdminForCallerLocked(null, 2467 DeviceAdminInfo.USES_POLICY_WIPE_DATA); 2468 long ident = Binder.clearCallingIdentity(); 2469 try { 2470 wipeDeviceOrUserLocked(flags, userHandle); 2471 } finally { 2472 Binder.restoreCallingIdentity(ident); 2473 } 2474 } 2475 } 2476 2477 private void wipeDeviceOrUserLocked(int flags, final int userHandle) { 2478 if (userHandle == UserHandle.USER_OWNER) { 2479 wipeDataLocked(flags); 2480 } else { 2481 lockNowUnchecked(); 2482 mHandler.post(new Runnable() { 2483 public void run() { 2484 try { 2485 ActivityManagerNative.getDefault().switchUser(UserHandle.USER_OWNER); 2486 (mUserManager) 2487 .removeUser(userHandle); 2488 } catch (RemoteException re) { 2489 // Shouldn't happen 2490 } 2491 } 2492 }); 2493 } 2494 } 2495 2496 public void getRemoveWarning(ComponentName comp, final RemoteCallback result, int userHandle) { 2497 if (!mHasFeature) { 2498 return; 2499 } 2500 enforceCrossUserPermission(userHandle); 2501 mContext.enforceCallingOrSelfPermission( 2502 android.Manifest.permission.BIND_DEVICE_ADMIN, null); 2503 2504 synchronized (this) { 2505 ActiveAdmin admin = getActiveAdminUncheckedLocked(comp, userHandle); 2506 if (admin == null) { 2507 try { 2508 result.sendResult(null); 2509 } catch (RemoteException e) { 2510 } 2511 return; 2512 } 2513 Intent intent = new Intent(DeviceAdminReceiver.ACTION_DEVICE_ADMIN_DISABLE_REQUESTED); 2514 intent.setComponent(admin.info.getComponent()); 2515 mContext.sendOrderedBroadcastAsUser(intent, new UserHandle(userHandle), 2516 null, new BroadcastReceiver() { 2517 @Override 2518 public void onReceive(Context context, Intent intent) { 2519 try { 2520 result.sendResult(getResultExtras(false)); 2521 } catch (RemoteException e) { 2522 } 2523 } 2524 }, null, Activity.RESULT_OK, null, null); 2525 } 2526 } 2527 2528 public void setActivePasswordState(int quality, int length, int letters, int uppercase, 2529 int lowercase, int numbers, int symbols, int nonletter, int userHandle) { 2530 if (!mHasFeature) { 2531 return; 2532 } 2533 enforceCrossUserPermission(userHandle); 2534 enforceNotManagedProfile(userHandle, "set the active password"); 2535 2536 mContext.enforceCallingOrSelfPermission( 2537 android.Manifest.permission.BIND_DEVICE_ADMIN, null); 2538 DevicePolicyData p = getUserData(userHandle); 2539 2540 validateQualityConstant(quality); 2541 2542 synchronized (this) { 2543 if (p.mActivePasswordQuality != quality || p.mActivePasswordLength != length 2544 || p.mFailedPasswordAttempts != 0 || p.mActivePasswordLetters != letters 2545 || p.mActivePasswordUpperCase != uppercase 2546 || p.mActivePasswordLowerCase != lowercase 2547 || p.mActivePasswordNumeric != numbers 2548 || p.mActivePasswordSymbols != symbols 2549 || p.mActivePasswordNonLetter != nonletter) { 2550 long ident = Binder.clearCallingIdentity(); 2551 try { 2552 p.mActivePasswordQuality = quality; 2553 p.mActivePasswordLength = length; 2554 p.mActivePasswordLetters = letters; 2555 p.mActivePasswordLowerCase = lowercase; 2556 p.mActivePasswordUpperCase = uppercase; 2557 p.mActivePasswordNumeric = numbers; 2558 p.mActivePasswordSymbols = symbols; 2559 p.mActivePasswordNonLetter = nonletter; 2560 p.mFailedPasswordAttempts = 0; 2561 saveSettingsLocked(userHandle); 2562 updatePasswordExpirationsLocked(userHandle); 2563 setExpirationAlarmCheckLocked(mContext, p); 2564 sendAdminCommandToSelfAndProfilesLocked( 2565 DeviceAdminReceiver.ACTION_PASSWORD_CHANGED, 2566 DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD, userHandle); 2567 } finally { 2568 Binder.restoreCallingIdentity(ident); 2569 } 2570 } 2571 } 2572 } 2573 2574 /** 2575 * Called any time the device password is updated. Resets all password expiration clocks. 2576 */ 2577 private void updatePasswordExpirationsLocked(int userHandle) { 2578 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 2579 for (UserInfo userInfo : profiles) { 2580 int profileId = userInfo.getUserHandle().getIdentifier(); 2581 DevicePolicyData policy = getUserData(profileId); 2582 final int N = policy.mAdminList.size(); 2583 if (N > 0) { 2584 for (int i=0; i<N; i++) { 2585 ActiveAdmin admin = policy.mAdminList.get(i); 2586 if (admin.info.usesPolicy(DeviceAdminInfo.USES_POLICY_EXPIRE_PASSWORD)) { 2587 long timeout = admin.passwordExpirationTimeout; 2588 long expiration = timeout > 0L ? (timeout + System.currentTimeMillis()) : 0L; 2589 admin.passwordExpirationDate = expiration; 2590 } 2591 } 2592 } 2593 saveSettingsLocked(profileId); 2594 } 2595 } 2596 2597 public void reportFailedPasswordAttempt(int userHandle) { 2598 enforceCrossUserPermission(userHandle); 2599 enforceNotManagedProfile(userHandle, "report failed password attempt"); 2600 mContext.enforceCallingOrSelfPermission( 2601 android.Manifest.permission.BIND_DEVICE_ADMIN, null); 2602 2603 synchronized (this) { 2604 DevicePolicyData policy = getUserData(userHandle); 2605 long ident = Binder.clearCallingIdentity(); 2606 try { 2607 policy.mFailedPasswordAttempts++; 2608 saveSettingsLocked(userHandle); 2609 if (mHasFeature) { 2610 int max = getMaximumFailedPasswordsForWipe(null, userHandle); 2611 if (max > 0 && policy.mFailedPasswordAttempts >= max) { 2612 wipeDeviceOrUserLocked(0, userHandle); 2613 } 2614 sendAdminCommandToSelfAndProfilesLocked( 2615 DeviceAdminReceiver.ACTION_PASSWORD_FAILED, 2616 DeviceAdminInfo.USES_POLICY_WATCH_LOGIN, userHandle); 2617 } 2618 } finally { 2619 Binder.restoreCallingIdentity(ident); 2620 } 2621 } 2622 } 2623 2624 public void reportSuccessfulPasswordAttempt(int userHandle) { 2625 enforceCrossUserPermission(userHandle); 2626 mContext.enforceCallingOrSelfPermission( 2627 android.Manifest.permission.BIND_DEVICE_ADMIN, null); 2628 2629 synchronized (this) { 2630 DevicePolicyData policy = getUserData(userHandle); 2631 if (policy.mFailedPasswordAttempts != 0 || policy.mPasswordOwner >= 0) { 2632 long ident = Binder.clearCallingIdentity(); 2633 try { 2634 policy.mFailedPasswordAttempts = 0; 2635 policy.mPasswordOwner = -1; 2636 saveSettingsLocked(userHandle); 2637 if (mHasFeature) { 2638 sendAdminCommandToSelfAndProfilesLocked( 2639 DeviceAdminReceiver.ACTION_PASSWORD_SUCCEEDED, 2640 DeviceAdminInfo.USES_POLICY_WATCH_LOGIN, userHandle); 2641 } 2642 } finally { 2643 Binder.restoreCallingIdentity(ident); 2644 } 2645 } 2646 } 2647 } 2648 2649 public ComponentName setGlobalProxy(ComponentName who, String proxySpec, 2650 String exclusionList, int userHandle) { 2651 if (!mHasFeature) { 2652 return null; 2653 } 2654 enforceCrossUserPermission(userHandle); 2655 synchronized(this) { 2656 if (who == null) { 2657 throw new NullPointerException("ComponentName is null"); 2658 } 2659 2660 // Only check if owner has set global proxy. We don't allow other users to set it. 2661 DevicePolicyData policy = getUserData(UserHandle.USER_OWNER); 2662 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 2663 DeviceAdminInfo.USES_POLICY_SETS_GLOBAL_PROXY); 2664 2665 // Scan through active admins and find if anyone has already 2666 // set the global proxy. 2667 Set<ComponentName> compSet = policy.mAdminMap.keySet(); 2668 for (ComponentName component : compSet) { 2669 ActiveAdmin ap = policy.mAdminMap.get(component); 2670 if ((ap.specifiesGlobalProxy) && (!component.equals(who))) { 2671 // Another admin already sets the global proxy 2672 // Return it to the caller. 2673 return component; 2674 } 2675 } 2676 2677 // If the user is not the owner, don't set the global proxy. Fail silently. 2678 if (UserHandle.getCallingUserId() != UserHandle.USER_OWNER) { 2679 Slog.w(LOG_TAG, "Only the owner is allowed to set the global proxy. User " 2680 + userHandle + " is not permitted."); 2681 return null; 2682 } 2683 if (proxySpec == null) { 2684 admin.specifiesGlobalProxy = false; 2685 admin.globalProxySpec = null; 2686 admin.globalProxyExclusionList = null; 2687 } else { 2688 2689 admin.specifiesGlobalProxy = true; 2690 admin.globalProxySpec = proxySpec; 2691 admin.globalProxyExclusionList = exclusionList; 2692 } 2693 2694 // Reset the global proxy accordingly 2695 // Do this using system permissions, as apps cannot write to secure settings 2696 long origId = Binder.clearCallingIdentity(); 2697 try { 2698 resetGlobalProxyLocked(policy); 2699 } finally { 2700 Binder.restoreCallingIdentity(origId); 2701 } 2702 return null; 2703 } 2704 } 2705 2706 public ComponentName getGlobalProxyAdmin(int userHandle) { 2707 if (!mHasFeature) { 2708 return null; 2709 } 2710 enforceCrossUserPermission(userHandle); 2711 synchronized(this) { 2712 DevicePolicyData policy = getUserData(UserHandle.USER_OWNER); 2713 // Scan through active admins and find if anyone has already 2714 // set the global proxy. 2715 final int N = policy.mAdminList.size(); 2716 for (int i = 0; i < N; i++) { 2717 ActiveAdmin ap = policy.mAdminList.get(i); 2718 if (ap.specifiesGlobalProxy) { 2719 // Device admin sets the global proxy 2720 // Return it to the caller. 2721 return ap.info.getComponent(); 2722 } 2723 } 2724 } 2725 // No device admin sets the global proxy. 2726 return null; 2727 } 2728 2729 public void setRecommendedGlobalProxy(ComponentName who, ProxyInfo proxyInfo) { 2730 synchronized (this) { 2731 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 2732 } 2733 long token = Binder.clearCallingIdentity(); 2734 try { 2735 ConnectivityManager connectivityManager = (ConnectivityManager) 2736 mContext.getSystemService(Context.CONNECTIVITY_SERVICE); 2737 connectivityManager.setGlobalProxy(proxyInfo); 2738 } finally { 2739 Binder.restoreCallingIdentity(token); 2740 } 2741 } 2742 2743 private void resetGlobalProxyLocked(DevicePolicyData policy) { 2744 final int N = policy.mAdminList.size(); 2745 for (int i = 0; i < N; i++) { 2746 ActiveAdmin ap = policy.mAdminList.get(i); 2747 if (ap.specifiesGlobalProxy) { 2748 saveGlobalProxyLocked(ap.globalProxySpec, ap.globalProxyExclusionList); 2749 return; 2750 } 2751 } 2752 // No device admins defining global proxies - reset global proxy settings to none 2753 saveGlobalProxyLocked(null, null); 2754 } 2755 2756 private void saveGlobalProxyLocked(String proxySpec, String exclusionList) { 2757 if (exclusionList == null) { 2758 exclusionList = ""; 2759 } 2760 if (proxySpec == null) { 2761 proxySpec = ""; 2762 } 2763 // Remove white spaces 2764 proxySpec = proxySpec.trim(); 2765 String data[] = proxySpec.split(":"); 2766 int proxyPort = 8080; 2767 if (data.length > 1) { 2768 try { 2769 proxyPort = Integer.parseInt(data[1]); 2770 } catch (NumberFormatException e) {} 2771 } 2772 exclusionList = exclusionList.trim(); 2773 ContentResolver res = mContext.getContentResolver(); 2774 2775 ProxyInfo proxyProperties = new ProxyInfo(data[0], proxyPort, exclusionList); 2776 if (!proxyProperties.isValid()) { 2777 Slog.e(LOG_TAG, "Invalid proxy properties, ignoring: " + proxyProperties.toString()); 2778 return; 2779 } 2780 Settings.Global.putString(res, Settings.Global.GLOBAL_HTTP_PROXY_HOST, data[0]); 2781 Settings.Global.putInt(res, Settings.Global.GLOBAL_HTTP_PROXY_PORT, proxyPort); 2782 Settings.Global.putString(res, Settings.Global.GLOBAL_HTTP_PROXY_EXCLUSION_LIST, 2783 exclusionList); 2784 } 2785 2786 /** 2787 * Set the storage encryption request for a single admin. Returns the new total request 2788 * status (for all admins). 2789 */ 2790 public int setStorageEncryption(ComponentName who, boolean encrypt, int userHandle) { 2791 if (!mHasFeature) { 2792 return DevicePolicyManager.ENCRYPTION_STATUS_UNSUPPORTED; 2793 } 2794 enforceCrossUserPermission(userHandle); 2795 synchronized (this) { 2796 // Check for permissions 2797 if (who == null) { 2798 throw new NullPointerException("ComponentName is null"); 2799 } 2800 // Only owner can set storage encryption 2801 if (userHandle != UserHandle.USER_OWNER 2802 || UserHandle.getCallingUserId() != UserHandle.USER_OWNER) { 2803 Slog.w(LOG_TAG, "Only owner is allowed to set storage encryption. User " 2804 + UserHandle.getCallingUserId() + " is not permitted."); 2805 return 0; 2806 } 2807 2808 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 2809 DeviceAdminInfo.USES_ENCRYPTED_STORAGE); 2810 2811 // Quick exit: If the filesystem does not support encryption, we can exit early. 2812 if (!isEncryptionSupported()) { 2813 return DevicePolicyManager.ENCRYPTION_STATUS_UNSUPPORTED; 2814 } 2815 2816 // (1) Record the value for the admin so it's sticky 2817 if (ap.encryptionRequested != encrypt) { 2818 ap.encryptionRequested = encrypt; 2819 saveSettingsLocked(userHandle); 2820 } 2821 2822 DevicePolicyData policy = getUserData(UserHandle.USER_OWNER); 2823 // (2) Compute "max" for all admins 2824 boolean newRequested = false; 2825 final int N = policy.mAdminList.size(); 2826 for (int i = 0; i < N; i++) { 2827 newRequested |= policy.mAdminList.get(i).encryptionRequested; 2828 } 2829 2830 // Notify OS of new request 2831 setEncryptionRequested(newRequested); 2832 2833 // Return the new global request status 2834 return newRequested 2835 ? DevicePolicyManager.ENCRYPTION_STATUS_ACTIVE 2836 : DevicePolicyManager.ENCRYPTION_STATUS_INACTIVE; 2837 } 2838 } 2839 2840 /** 2841 * Get the current storage encryption request status for a given admin, or aggregate of all 2842 * active admins. 2843 */ 2844 public boolean getStorageEncryption(ComponentName who, int userHandle) { 2845 if (!mHasFeature) { 2846 return false; 2847 } 2848 enforceCrossUserPermission(userHandle); 2849 synchronized (this) { 2850 // Check for permissions if a particular caller is specified 2851 if (who != null) { 2852 // When checking for a single caller, status is based on caller's request 2853 ActiveAdmin ap = getActiveAdminUncheckedLocked(who, userHandle); 2854 return ap != null ? ap.encryptionRequested : false; 2855 } 2856 2857 // If no particular caller is specified, return the aggregate set of requests. 2858 // This is short circuited by returning true on the first hit. 2859 DevicePolicyData policy = getUserData(userHandle); 2860 final int N = policy.mAdminList.size(); 2861 for (int i = 0; i < N; i++) { 2862 if (policy.mAdminList.get(i).encryptionRequested) { 2863 return true; 2864 } 2865 } 2866 return false; 2867 } 2868 } 2869 2870 /** 2871 * Get the current encryption status of the device. 2872 */ 2873 public int getStorageEncryptionStatus(int userHandle) { 2874 if (!mHasFeature) { 2875 // Ok to return current status. 2876 } 2877 enforceCrossUserPermission(userHandle); 2878 return getEncryptionStatus(); 2879 } 2880 2881 /** 2882 * Hook to low-levels: This should report if the filesystem supports encrypted storage. 2883 */ 2884 private boolean isEncryptionSupported() { 2885 // Note, this can be implemented as 2886 // return getEncryptionStatus() != DevicePolicyManager.ENCRYPTION_STATUS_UNSUPPORTED; 2887 // But is provided as a separate internal method if there's a faster way to do a 2888 // simple check for supported-or-not. 2889 return getEncryptionStatus() != DevicePolicyManager.ENCRYPTION_STATUS_UNSUPPORTED; 2890 } 2891 2892 /** 2893 * Hook to low-levels: Reporting the current status of encryption. 2894 * @return A value such as {@link DevicePolicyManager#ENCRYPTION_STATUS_UNSUPPORTED} or 2895 * {@link DevicePolicyManager#ENCRYPTION_STATUS_INACTIVE} or 2896 * {@link DevicePolicyManager#ENCRYPTION_STATUS_ACTIVE}. 2897 */ 2898 private int getEncryptionStatus() { 2899 String status = SystemProperties.get("ro.crypto.state", "unsupported"); 2900 if ("encrypted".equalsIgnoreCase(status)) { 2901 return DevicePolicyManager.ENCRYPTION_STATUS_ACTIVE; 2902 } else if ("unencrypted".equalsIgnoreCase(status)) { 2903 return DevicePolicyManager.ENCRYPTION_STATUS_INACTIVE; 2904 } else { 2905 return DevicePolicyManager.ENCRYPTION_STATUS_UNSUPPORTED; 2906 } 2907 } 2908 2909 /** 2910 * Hook to low-levels: If needed, record the new admin setting for encryption. 2911 */ 2912 private void setEncryptionRequested(boolean encrypt) { 2913 } 2914 2915 /** 2916 * The system property used to share the state of the camera. The native camera service 2917 * is expected to read this property and act accordingly. 2918 */ 2919 public static final String SYSTEM_PROP_DISABLE_CAMERA = "sys.secpolicy.camera.disabled"; 2920 2921 /** 2922 * Disables all device cameras according to the specified admin. 2923 */ 2924 public void setCameraDisabled(ComponentName who, boolean disabled, int userHandle) { 2925 if (!mHasFeature) { 2926 return; 2927 } 2928 enforceCrossUserPermission(userHandle); 2929 enforceNotManagedProfile(userHandle, "enable/disable cameras"); 2930 synchronized (this) { 2931 if (who == null) { 2932 throw new NullPointerException("ComponentName is null"); 2933 } 2934 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 2935 DeviceAdminInfo.USES_POLICY_DISABLE_CAMERA); 2936 if (ap.disableCamera != disabled) { 2937 ap.disableCamera = disabled; 2938 saveSettingsLocked(userHandle); 2939 } 2940 syncDeviceCapabilitiesLocked(getUserData(userHandle)); 2941 } 2942 } 2943 2944 /** 2945 * Gets whether or not all device cameras are disabled for a given admin, or disabled for any 2946 * active admins. 2947 */ 2948 public boolean getCameraDisabled(ComponentName who, int userHandle) { 2949 if (!mHasFeature) { 2950 return false; 2951 } 2952 synchronized (this) { 2953 if (who != null) { 2954 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 2955 return (admin != null) ? admin.disableCamera : false; 2956 } 2957 2958 DevicePolicyData policy = getUserData(userHandle); 2959 // Determine whether or not the device camera is disabled for any active admins. 2960 final int N = policy.mAdminList.size(); 2961 for (int i = 0; i < N; i++) { 2962 ActiveAdmin admin = policy.mAdminList.get(i); 2963 if (admin.disableCamera) { 2964 return true; 2965 } 2966 } 2967 return false; 2968 } 2969 } 2970 2971 /** 2972 * Selectively disable keyguard features. 2973 */ 2974 public void setKeyguardDisabledFeatures(ComponentName who, int which, int userHandle) { 2975 if (!mHasFeature) { 2976 return; 2977 } 2978 enforceCrossUserPermission(userHandle); 2979 enforceNotManagedProfile(userHandle, "disable keyguard features"); 2980 synchronized (this) { 2981 if (who == null) { 2982 throw new NullPointerException("ComponentName is null"); 2983 } 2984 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 2985 DeviceAdminInfo.USES_POLICY_DISABLE_KEYGUARD_FEATURES); 2986 if (ap.disabledKeyguardFeatures != which) { 2987 ap.disabledKeyguardFeatures = which; 2988 saveSettingsLocked(userHandle); 2989 } 2990 syncDeviceCapabilitiesLocked(getUserData(userHandle)); 2991 } 2992 } 2993 2994 /** 2995 * Gets the disabled state for features in keyguard for the given admin, 2996 * or the aggregate of all active admins if who is null. 2997 */ 2998 public int getKeyguardDisabledFeatures(ComponentName who, int userHandle) { 2999 if (!mHasFeature) { 3000 return 0; 3001 } 3002 enforceCrossUserPermission(userHandle); 3003 synchronized (this) { 3004 if (who != null) { 3005 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 3006 return (admin != null) ? admin.disabledKeyguardFeatures : 0; 3007 } 3008 3009 // Determine which keyguard features are disabled for any active admins. 3010 DevicePolicyData policy = getUserData(userHandle); 3011 final int N = policy.mAdminList.size(); 3012 int which = 0; 3013 for (int i = 0; i < N; i++) { 3014 ActiveAdmin admin = policy.mAdminList.get(i); 3015 which |= admin.disabledKeyguardFeatures; 3016 } 3017 return which; 3018 } 3019 } 3020 3021 @Override 3022 public boolean setDeviceOwner(String packageName, String ownerName) { 3023 if (!mHasFeature) { 3024 return false; 3025 } 3026 if (packageName == null 3027 || !DeviceOwner.isInstalled(packageName, mContext.getPackageManager())) { 3028 throw new IllegalArgumentException("Invalid package name " + packageName 3029 + " for device owner"); 3030 } 3031 synchronized (this) { 3032 if (isDeviceProvisioned()) { 3033 throw new IllegalStateException( 3034 "Trying to set device owner but device is already provisioned."); 3035 } 3036 3037 if (mDeviceOwner != null && mDeviceOwner.hasDeviceOwner()) { 3038 throw new IllegalStateException( 3039 "Trying to set device owner but device owner is already set."); 3040 } 3041 3042 long token = Binder.clearCallingIdentity(); 3043 try { 3044 mAppOpsService.setDeviceOwner(packageName); 3045 } catch (RemoteException e) { 3046 Log.w(LOG_TAG, "Unable to notify AppOpsService of DeviceOwner", e); 3047 } finally { 3048 Binder.restoreCallingIdentity(token); 3049 } 3050 if (mDeviceOwner == null) { 3051 // Device owner is not set and does not exist, set it. 3052 mDeviceOwner = DeviceOwner.createWithDeviceOwner(packageName, ownerName); 3053 mDeviceOwner.writeOwnerFile(); 3054 return true; 3055 } else { 3056 // Device owner is not set but a profile owner exists, update Device owner state. 3057 mDeviceOwner.setDeviceOwner(packageName, ownerName); 3058 mDeviceOwner.writeOwnerFile(); 3059 return true; 3060 } 3061 } 3062 } 3063 3064 @Override 3065 public boolean isDeviceOwner(String packageName) { 3066 if (!mHasFeature) { 3067 return false; 3068 } 3069 synchronized (this) { 3070 return mDeviceOwner != null 3071 && mDeviceOwner.hasDeviceOwner() 3072 && mDeviceOwner.getDeviceOwnerPackageName().equals(packageName); 3073 } 3074 } 3075 3076 @Override 3077 public String getDeviceOwner() { 3078 if (!mHasFeature) { 3079 return null; 3080 } 3081 synchronized (this) { 3082 if (mDeviceOwner != null && mDeviceOwner.hasDeviceOwner()) { 3083 return mDeviceOwner.getDeviceOwnerPackageName(); 3084 } 3085 } 3086 return null; 3087 } 3088 3089 @Override 3090 public String getDeviceOwnerName() { 3091 if (!mHasFeature) { 3092 return null; 3093 } 3094 mContext.enforceCallingOrSelfPermission(android.Manifest.permission.MANAGE_USERS, null); 3095 synchronized (this) { 3096 if (mDeviceOwner != null) { 3097 return mDeviceOwner.getDeviceOwnerName(); 3098 } 3099 } 3100 return null; 3101 } 3102 3103 @Override 3104 public void clearDeviceOwner(String packageName) { 3105 if (packageName == null) { 3106 throw new NullPointerException("packageName is null"); 3107 } 3108 try { 3109 int uid = mContext.getPackageManager().getPackageUid(packageName, 0); 3110 if (uid != Binder.getCallingUid()) { 3111 throw new SecurityException("Invalid packageName"); 3112 } 3113 } catch (NameNotFoundException e) { 3114 throw new SecurityException(e); 3115 } 3116 if (!isDeviceOwner(packageName)) { 3117 throw new SecurityException("clearDeviceOwner can only be called by the device owner"); 3118 } 3119 synchronized (this) { 3120 long ident = Binder.clearCallingIdentity(); 3121 try { 3122 mUserManager.setUserRestrictions(new Bundle(), 3123 new UserHandle(UserHandle.USER_OWNER)); 3124 if (mDeviceOwner != null) { 3125 mDeviceOwner.clearDeviceOwner(); 3126 mDeviceOwner.writeOwnerFile(); 3127 } 3128 } finally { 3129 Binder.restoreCallingIdentity(ident); 3130 } 3131 } 3132 } 3133 3134 @Override 3135 public boolean setProfileOwner(String packageName, String ownerName, int userHandle) { 3136 if (!mHasFeature) { 3137 return false; 3138 } 3139 mContext.enforceCallingOrSelfPermission(android.Manifest.permission.MANAGE_USERS, null); 3140 3141 if (mUserManager.getUserInfo(userHandle) == null) { 3142 // User doesn't exist. 3143 throw new IllegalArgumentException( 3144 "Attempted to set profile owner for invalid userId: " + userHandle); 3145 } 3146 3147 if (packageName == null 3148 || !DeviceOwner.isInstalledForUser(packageName, userHandle)) { 3149 throw new IllegalArgumentException("Package name " + packageName 3150 + " not installed for userId:" + userHandle); 3151 } 3152 synchronized (this) { 3153 if (isUserSetupComplete(userHandle)) { 3154 throw new IllegalStateException( 3155 "Trying to set profile owner but user is already set-up."); 3156 } 3157 long token = Binder.clearCallingIdentity(); 3158 try { 3159 mAppOpsService.setProfileOwner(packageName, userHandle); 3160 } catch (RemoteException e) { 3161 Log.w(LOG_TAG, "Unable to notify AppOpsService of ProfileOwner", e); 3162 } finally { 3163 Binder.restoreCallingIdentity(token); 3164 } 3165 if (mDeviceOwner == null) { 3166 // Device owner state does not exist, create it. 3167 mDeviceOwner = DeviceOwner.createWithProfileOwner(packageName, ownerName, 3168 userHandle); 3169 mDeviceOwner.writeOwnerFile(); 3170 return true; 3171 } else { 3172 // Device owner already exists, update it. 3173 mDeviceOwner.setProfileOwner(packageName, ownerName, userHandle); 3174 mDeviceOwner.writeOwnerFile(); 3175 return true; 3176 } 3177 } 3178 } 3179 3180 @Override 3181 public void setProfileEnabled(ComponentName who) { 3182 if (!mHasFeature) { 3183 return; 3184 } 3185 synchronized (this) { 3186 // Check for permissions 3187 if (who == null) { 3188 throw new NullPointerException("ComponentName is null"); 3189 } 3190 // Check if this is the profile owner who is calling 3191 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 3192 int userId = UserHandle.getCallingUserId(); 3193 Slog.d(LOG_TAG, "Enabling the profile for: " + userId); 3194 3195 long id = Binder.clearCallingIdentity(); 3196 try { 3197 mUserManager.setUserEnabled(userId); 3198 Intent intent = new Intent(Intent.ACTION_MANAGED_PROFILE_ADDED); 3199 intent.putExtra(Intent.EXTRA_USER, new UserHandle(UserHandle.getCallingUserId())); 3200 intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY | 3201 Intent.FLAG_RECEIVER_FOREGROUND); 3202 // TODO This should send to parent of profile (which is always owner at the moment). 3203 mContext.sendBroadcastAsUser(intent, UserHandle.OWNER); 3204 } finally { 3205 restoreCallingIdentity(id); 3206 } 3207 } 3208 } 3209 3210 @Override 3211 public String getProfileOwner(int userHandle) { 3212 if (!mHasFeature) { 3213 return null; 3214 } 3215 3216 synchronized (this) { 3217 if (mDeviceOwner != null) { 3218 return mDeviceOwner.getProfileOwnerPackageName(userHandle); 3219 } 3220 } 3221 return null; 3222 } 3223 3224 @Override 3225 public String getProfileOwnerName(int userHandle) { 3226 if (!mHasFeature) { 3227 return null; 3228 } 3229 mContext.enforceCallingOrSelfPermission(android.Manifest.permission.MANAGE_USERS, null); 3230 3231 synchronized (this) { 3232 if (mDeviceOwner != null) { 3233 return mDeviceOwner.getProfileOwnerName(userHandle); 3234 } 3235 } 3236 return null; 3237 } 3238 3239 private boolean isDeviceProvisioned() { 3240 return Settings.Global.getInt(mContext.getContentResolver(), 3241 Settings.Global.DEVICE_PROVISIONED, 0) > 0; 3242 } 3243 3244 private boolean isUserSetupComplete(int userId) { 3245 return Settings.Secure.getIntForUser(mContext.getContentResolver(), 3246 Settings.Secure.USER_SETUP_COMPLETE, 0, userId) > 0; 3247 } 3248 3249 private void enforceCrossUserPermission(int userHandle) { 3250 if (userHandle < 0) { 3251 throw new IllegalArgumentException("Invalid userId " + userHandle); 3252 } 3253 final int callingUid = Binder.getCallingUid(); 3254 if (userHandle == UserHandle.getUserId(callingUid)) return; 3255 if (callingUid != Process.SYSTEM_UID && callingUid != 0) { 3256 mContext.enforceCallingOrSelfPermission( 3257 android.Manifest.permission.INTERACT_ACROSS_USERS_FULL, "Must be system or have" 3258 + " INTERACT_ACROSS_USERS_FULL permission"); 3259 } 3260 } 3261 3262 private void enforceNotManagedProfile(int userHandle, String message) { 3263 if(isManagedProfile(userHandle)) { 3264 throw new SecurityException("You can not " + message + " for a managed profile. "); 3265 } 3266 } 3267 3268 private UserInfo getProfileParent(int userHandle) { 3269 long ident = Binder.clearCallingIdentity(); 3270 try { 3271 return mUserManager.getProfileParent(userHandle); 3272 } finally { 3273 Binder.restoreCallingIdentity(ident); 3274 } 3275 } 3276 3277 private boolean isManagedProfile(int userHandle) { 3278 long ident = Binder.clearCallingIdentity(); 3279 try { 3280 return mUserManager.getUserInfo(userHandle).isManagedProfile(); 3281 } finally { 3282 Binder.restoreCallingIdentity(ident); 3283 } 3284 } 3285 3286 private void enableIfNecessary(String packageName, int userId) { 3287 try { 3288 IPackageManager ipm = AppGlobals.getPackageManager(); 3289 ApplicationInfo ai = ipm.getApplicationInfo(packageName, 3290 PackageManager.GET_DISABLED_UNTIL_USED_COMPONENTS, 3291 userId); 3292 if (ai.enabledSetting 3293 == PackageManager.COMPONENT_ENABLED_STATE_DISABLED_UNTIL_USED) { 3294 ipm.setApplicationEnabledSetting(packageName, 3295 PackageManager.COMPONENT_ENABLED_STATE_DEFAULT, 3296 PackageManager.DONT_KILL_APP, userId, "DevicePolicyManager"); 3297 } 3298 } catch (RemoteException e) { 3299 } 3300 } 3301 3302 @Override 3303 protected void dump(FileDescriptor fd, PrintWriter pw, String[] args) { 3304 if (mContext.checkCallingOrSelfPermission(android.Manifest.permission.DUMP) 3305 != PackageManager.PERMISSION_GRANTED) { 3306 3307 pw.println("Permission Denial: can't dump DevicePolicyManagerService from from pid=" 3308 + Binder.getCallingPid() 3309 + ", uid=" + Binder.getCallingUid()); 3310 return; 3311 } 3312 3313 final Printer p = new PrintWriterPrinter(pw); 3314 3315 synchronized (this) { 3316 p.println("Current Device Policy Manager state:"); 3317 3318 int userCount = mUserData.size(); 3319 for (int u = 0; u < userCount; u++) { 3320 DevicePolicyData policy = getUserData(mUserData.keyAt(u)); 3321 p.println(" Enabled Device Admins (User " + policy.mUserHandle + "):"); 3322 final int N = policy.mAdminList.size(); 3323 for (int i=0; i<N; i++) { 3324 ActiveAdmin ap = policy.mAdminList.get(i); 3325 if (ap != null) { 3326 pw.print(" "); pw.print(ap.info.getComponent().flattenToShortString()); 3327 pw.println(":"); 3328 ap.dump(" ", pw); 3329 } 3330 } 3331 3332 pw.println(" "); 3333 pw.print(" mPasswordOwner="); pw.println(policy.mPasswordOwner); 3334 } 3335 } 3336 } 3337 3338 @Override 3339 public void addPersistentPreferredActivity(ComponentName who, IntentFilter filter, 3340 ComponentName activity) { 3341 synchronized (this) { 3342 if (who == null) { 3343 throw new NullPointerException("ComponentName is null"); 3344 } 3345 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 3346 3347 IPackageManager pm = AppGlobals.getPackageManager(); 3348 long id = Binder.clearCallingIdentity(); 3349 try { 3350 pm.addPersistentPreferredActivity(filter, activity, UserHandle.getCallingUserId()); 3351 } catch (RemoteException re) { 3352 // Shouldn't happen 3353 } finally { 3354 restoreCallingIdentity(id); 3355 } 3356 } 3357 } 3358 3359 @Override 3360 public void clearPackagePersistentPreferredActivities(ComponentName who, String packageName) { 3361 synchronized (this) { 3362 if (who == null) { 3363 throw new NullPointerException("ComponentName is null"); 3364 } 3365 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 3366 3367 IPackageManager pm = AppGlobals.getPackageManager(); 3368 long id = Binder.clearCallingIdentity(); 3369 try { 3370 pm.clearPackagePersistentPreferredActivities(packageName, UserHandle.getCallingUserId()); 3371 } catch (RemoteException re) { 3372 // Shouldn't happen 3373 } finally { 3374 restoreCallingIdentity(id); 3375 } 3376 } 3377 } 3378 3379 @Override 3380 public void setApplicationRestrictions(ComponentName who, String packageName, Bundle settings) { 3381 final UserHandle userHandle = new UserHandle(UserHandle.getCallingUserId()); 3382 3383 synchronized (this) { 3384 if (who == null) { 3385 throw new NullPointerException("ComponentName is null"); 3386 } 3387 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 3388 3389 long id = Binder.clearCallingIdentity(); 3390 try { 3391 mUserManager.setApplicationRestrictions(packageName, settings, userHandle); 3392 } finally { 3393 restoreCallingIdentity(id); 3394 } 3395 } 3396 } 3397 3398 @Override 3399 public void setRestrictionsProvider(ComponentName who, ComponentName permissionProvider) { 3400 synchronized (this) { 3401 if (who == null) { 3402 throw new NullPointerException("ComponentName is null"); 3403 } 3404 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 3405 3406 int userHandle = UserHandle.getCallingUserId(); 3407 DevicePolicyData userData = getUserData(userHandle); 3408 userData.mRestrictionsProvider = permissionProvider; 3409 saveSettingsLocked(userHandle); 3410 } 3411 } 3412 3413 @Override 3414 public ComponentName getRestrictionsProvider(int userHandle) { 3415 synchronized (this) { 3416 if (Binder.getCallingUid() != Process.SYSTEM_UID) { 3417 throw new SecurityException("Only the system can query the permission provider"); 3418 } 3419 DevicePolicyData userData = getUserData(userHandle); 3420 return userData != null ? userData.mRestrictionsProvider : null; 3421 } 3422 } 3423 3424 public void addCrossProfileIntentFilter(ComponentName who, IntentFilter filter, int flags) { 3425 int callingUserId = UserHandle.getCallingUserId(); 3426 synchronized (this) { 3427 if (who == null) { 3428 throw new NullPointerException("ComponentName is null"); 3429 } 3430 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 3431 3432 IPackageManager pm = AppGlobals.getPackageManager(); 3433 long id = Binder.clearCallingIdentity(); 3434 try { 3435 if ((flags & DevicePolicyManager.FLAG_PARENT_CAN_ACCESS_MANAGED) != 0) { 3436 pm.addCrossProfileIntentFilter(filter, true /*removable*/, callingUserId, 3437 UserHandle.USER_OWNER); 3438 } 3439 if ((flags & DevicePolicyManager.FLAG_MANAGED_CAN_ACCESS_PARENT) != 0) { 3440 pm.addCrossProfileIntentFilter(filter, true /*removable*/, UserHandle.USER_OWNER, 3441 callingUserId); 3442 } 3443 } catch (RemoteException re) { 3444 // Shouldn't happen 3445 } finally { 3446 restoreCallingIdentity(id); 3447 } 3448 } 3449 } 3450 3451 public void clearCrossProfileIntentFilters(ComponentName who) { 3452 int callingUserId = UserHandle.getCallingUserId(); 3453 synchronized (this) { 3454 if (who == null) { 3455 throw new NullPointerException("ComponentName is null"); 3456 } 3457 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 3458 IPackageManager pm = AppGlobals.getPackageManager(); 3459 long id = Binder.clearCallingIdentity(); 3460 try { 3461 pm.clearCrossProfileIntentFilters(callingUserId); 3462 pm.clearCrossProfileIntentFilters(UserHandle.USER_OWNER); 3463 } catch (RemoteException re) { 3464 // Shouldn't happen 3465 } finally { 3466 restoreCallingIdentity(id); 3467 } 3468 } 3469 } 3470 3471 @Override 3472 public UserHandle createUser(ComponentName who, String name) { 3473 synchronized (this) { 3474 if (who == null) { 3475 throw new NullPointerException("ComponentName is null"); 3476 } 3477 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 3478 3479 long id = Binder.clearCallingIdentity(); 3480 try { 3481 UserInfo userInfo = mUserManager.createUser(name, 0 /* flags */); 3482 if (userInfo != null) { 3483 return userInfo.getUserHandle(); 3484 } 3485 return null; 3486 } finally { 3487 restoreCallingIdentity(id); 3488 } 3489 } 3490 } 3491 3492 @Override 3493 public boolean removeUser(ComponentName who, UserHandle userHandle) { 3494 synchronized (this) { 3495 if (who == null) { 3496 throw new NullPointerException("ComponentName is null"); 3497 } 3498 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 3499 3500 long id = Binder.clearCallingIdentity(); 3501 try { 3502 return mUserManager.removeUser(userHandle.getIdentifier()); 3503 } finally { 3504 restoreCallingIdentity(id); 3505 } 3506 } 3507 } 3508 3509 @Override 3510 public Bundle getApplicationRestrictions(ComponentName who, String packageName) { 3511 final UserHandle userHandle = new UserHandle(UserHandle.getCallingUserId()); 3512 3513 synchronized (this) { 3514 if (who == null) { 3515 throw new NullPointerException("ComponentName is null"); 3516 } 3517 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 3518 3519 long id = Binder.clearCallingIdentity(); 3520 try { 3521 return mUserManager.getApplicationRestrictions(packageName, userHandle); 3522 } finally { 3523 restoreCallingIdentity(id); 3524 } 3525 } 3526 } 3527 3528 @Override 3529 public void setUserRestriction(ComponentName who, String key, boolean enabled) { 3530 final UserHandle userHandle = new UserHandle(UserHandle.getCallingUserId()); 3531 3532 synchronized (this) { 3533 if (who == null) { 3534 throw new NullPointerException("ComponentName is null"); 3535 } 3536 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 3537 3538 long id = Binder.clearCallingIdentity(); 3539 try { 3540 mUserManager.setUserRestriction(key, enabled, userHandle); 3541 } finally { 3542 restoreCallingIdentity(id); 3543 } 3544 } 3545 } 3546 3547 @Override 3548 public boolean setApplicationBlocked(ComponentName who, String packageName, 3549 boolean blocked) { 3550 int callingUserId = UserHandle.getCallingUserId(); 3551 synchronized (this) { 3552 if (who == null) { 3553 throw new NullPointerException("ComponentName is null"); 3554 } 3555 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 3556 3557 long id = Binder.clearCallingIdentity(); 3558 try { 3559 IPackageManager pm = AppGlobals.getPackageManager(); 3560 return pm.setApplicationBlockedSettingAsUser(packageName, blocked, callingUserId); 3561 } catch (RemoteException re) { 3562 // shouldn't happen 3563 Slog.e(LOG_TAG, "Failed to setApplicationBlockedSetting", re); 3564 } finally { 3565 restoreCallingIdentity(id); 3566 } 3567 return false; 3568 } 3569 } 3570 3571 @Override 3572 public int setApplicationsBlocked(ComponentName who, Intent intent, boolean blocked) { 3573 int callingUserId = UserHandle.getCallingUserId(); 3574 synchronized (this) { 3575 if (who == null) { 3576 throw new NullPointerException("ComponentName is null"); 3577 } 3578 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 3579 3580 long id = Binder.clearCallingIdentity(); 3581 try { 3582 IPackageManager pm = AppGlobals.getPackageManager(); 3583 List<ResolveInfo> activitiesToEnable = pm.queryIntentActivities(intent, 3584 intent.resolveTypeIfNeeded(mContext.getContentResolver()), 3585 PackageManager.GET_DISABLED_COMPONENTS 3586 | PackageManager.GET_UNINSTALLED_PACKAGES, 3587 callingUserId); 3588 3589 if (DBG) Slog.d(LOG_TAG, "Enabling activities: " + activitiesToEnable); 3590 int numberOfAppsUnblocked = 0; 3591 if (activitiesToEnable != null) { 3592 for (ResolveInfo info : activitiesToEnable) { 3593 if (info.activityInfo != null) { 3594 numberOfAppsUnblocked++; 3595 pm.setApplicationBlockedSettingAsUser(info.activityInfo.packageName, 3596 blocked, callingUserId); 3597 } 3598 } 3599 } 3600 return numberOfAppsUnblocked; 3601 } catch (RemoteException re) { 3602 // shouldn't happen 3603 Slog.e(LOG_TAG, "Failed to setApplicationsBlockedSettingsWithIntent", re); 3604 } finally { 3605 restoreCallingIdentity(id); 3606 } 3607 return 0; 3608 } 3609 } 3610 3611 @Override 3612 public boolean isApplicationBlocked(ComponentName who, String packageName) { 3613 int callingUserId = UserHandle.getCallingUserId(); 3614 synchronized (this) { 3615 if (who == null) { 3616 throw new NullPointerException("ComponentName is null"); 3617 } 3618 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 3619 3620 long id = Binder.clearCallingIdentity(); 3621 try { 3622 IPackageManager pm = AppGlobals.getPackageManager(); 3623 return pm.getApplicationBlockedSettingAsUser(packageName, callingUserId); 3624 } catch (RemoteException re) { 3625 // shouldn't happen 3626 Slog.e(LOG_TAG, "Failed to getApplicationBlockedSettingAsUser", re); 3627 } finally { 3628 restoreCallingIdentity(id); 3629 } 3630 return false; 3631 } 3632 } 3633 3634 @Override 3635 public void setAccountManagementDisabled(ComponentName who, String accountType, 3636 boolean disabled) { 3637 if (!mHasFeature) { 3638 return; 3639 } 3640 synchronized (this) { 3641 if (who == null) { 3642 throw new NullPointerException("ComponentName is null"); 3643 } 3644 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 3645 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 3646 if (disabled) { 3647 ap.accountTypesWithManagementDisabled.add(accountType); 3648 } else { 3649 ap.accountTypesWithManagementDisabled.remove(accountType); 3650 } 3651 saveSettingsLocked(UserHandle.getCallingUserId()); 3652 } 3653 } 3654 3655 @Override 3656 public String[] getAccountTypesWithManagementDisabled() { 3657 if (!mHasFeature) { 3658 return null; 3659 } 3660 synchronized (this) { 3661 DevicePolicyData policy = getUserData(UserHandle.getCallingUserId()); 3662 final int N = policy.mAdminList.size(); 3663 HashSet<String> resultSet = new HashSet<String>(); 3664 for (int i = 0; i < N; i++) { 3665 ActiveAdmin admin = policy.mAdminList.get(i); 3666 resultSet.addAll(admin.accountTypesWithManagementDisabled); 3667 } 3668 return resultSet.toArray(new String[resultSet.size()]); 3669 } 3670 } 3671 3672 /** 3673 * Sets which componets may enter lock task mode. 3674 * 3675 * This function can only be called by the device owner or the profile owner. 3676 * @param components The list of components allowed to enter lock task mode. 3677 */ 3678 public void setLockTaskComponents(ComponentName[] components) throws SecurityException { 3679 // Get the package names of the caller. 3680 int uid = Binder.getCallingUid(); 3681 String[] packageNames = mContext.getPackageManager().getPackagesForUid(uid); 3682 3683 // Check whether any of the package name is the device owner or the profile owner. 3684 for (int i=0; i<packageNames.length; i++) { 3685 String packageName = packageNames[i]; 3686 int userHandle = UserHandle.getUserId(uid); 3687 String profileOwnerPackage = getProfileOwner(userHandle); 3688 if (isDeviceOwner(packageName) || 3689 (profileOwnerPackage != null && profileOwnerPackage.equals(packageName))) { 3690 3691 // If a package name is the device owner or the profile owner, 3692 // we update the component list. 3693 DevicePolicyData policy = getUserData(userHandle); 3694 policy.mLockTaskComponents.clear(); 3695 if (components != null) { 3696 for (int j=0; j<components.length; j++) { 3697 ComponentName component = components[j]; 3698 policy.mLockTaskComponents.add(component); 3699 } 3700 } 3701 3702 // Store the settings persistently. 3703 saveSettingsLocked(userHandle); 3704 return; 3705 } 3706 } 3707 throw new SecurityException(); 3708 } 3709 3710 /** 3711 * This function returns the list of components allowed to start the task lock mode. 3712 */ 3713 public ComponentName[] getLockTaskComponents() { 3714 int userHandle = UserHandle.USER_OWNER; 3715 DevicePolicyData policy = getUserData(userHandle); 3716 ComponentName[] tempArray = policy.mLockTaskComponents.toArray(new ComponentName[0]); 3717 return tempArray; 3718 } 3719 3720 /** 3721 * This function lets the caller know whether the given component is allowed to start the 3722 * lock task mode. 3723 * @param component The component to check 3724 */ 3725 public boolean isLockTaskPermitted(ComponentName component) { 3726 // Get current user's devicepolicy 3727 int uid = Binder.getCallingUid(); 3728 int userHandle = UserHandle.getUserId(uid); 3729 DevicePolicyData policy = getUserData(userHandle); 3730 for (int i=0; i<policy.mLockTaskComponents.size(); i++) { 3731 ComponentName lockTaskComponent = policy.mLockTaskComponents.get(i); 3732 3733 // If the given component equals one of the component stored our device-owner-set 3734 // list, we allow this component to start the lock task mode. 3735 if (lockTaskComponent.getPackageName().equals(component.getPackageName())) { 3736 return true; 3737 } 3738 } 3739 return false; 3740 } 3741 3742 @Override 3743 public void setGlobalSetting(ComponentName who, String setting, String value) { 3744 final ContentResolver contentResolver = mContext.getContentResolver(); 3745 3746 synchronized (this) { 3747 if (who == null) { 3748 throw new NullPointerException("ComponentName is null"); 3749 } 3750 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 3751 3752 long id = Binder.clearCallingIdentity(); 3753 try { 3754 Settings.Global.putString(contentResolver, setting, value); 3755 } finally { 3756 restoreCallingIdentity(id); 3757 } 3758 } 3759 } 3760 3761 @Override 3762 public void setSecureSetting(ComponentName who, String setting, String value) { 3763 int callingUserId = UserHandle.getCallingUserId(); 3764 final ContentResolver contentResolver = mContext.getContentResolver(); 3765 3766 synchronized (this) { 3767 if (who == null) { 3768 throw new NullPointerException("ComponentName is null"); 3769 } 3770 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 3771 3772 long id = Binder.clearCallingIdentity(); 3773 try { 3774 Settings.Secure.putStringForUser(contentResolver, setting, value, callingUserId); 3775 } finally { 3776 restoreCallingIdentity(id); 3777 } 3778 } 3779 } 3780 3781 @Override 3782 public void setMasterVolumeMuted(ComponentName who, boolean on) { 3783 final ContentResolver contentResolver = mContext.getContentResolver(); 3784 3785 synchronized (this) { 3786 if (who == null) { 3787 throw new NullPointerException("ComponentName is null"); 3788 } 3789 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 3790 3791 IAudioService iAudioService = IAudioService.Stub.asInterface( 3792 ServiceManager.getService(Context.AUDIO_SERVICE)); 3793 try{ 3794 iAudioService.setMasterMute(on, 0, who.getPackageName(), null); 3795 } catch (RemoteException re) { 3796 Slog.e(LOG_TAG, "Failed to setMasterMute", re); 3797 } 3798 } 3799 } 3800 3801 @Override 3802 public boolean isMasterVolumeMuted(ComponentName who) { 3803 final ContentResolver contentResolver = mContext.getContentResolver(); 3804 3805 synchronized (this) { 3806 if (who == null) { 3807 throw new NullPointerException("ComponentName is null"); 3808 } 3809 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 3810 3811 AudioManager audioManager = 3812 (AudioManager) mContext.getSystemService(Context.AUDIO_SERVICE); 3813 return audioManager.isMasterMute(); 3814 } 3815 } 3816} 3817