Dianne Hackborn | d684784 | 2010-01-12 18:14:19 -0800 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2010 The Android Open Source Project |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | |
| 17 | package com.android.server; |
| 18 | |
| 19 | import com.android.common.FastXmlSerializer; |
Dianne Hackborn | df83afa | 2010-01-20 13:37:26 -0800 | [diff] [blame^] | 20 | import com.android.internal.widget.LockPatternUtils; |
Dianne Hackborn | d684784 | 2010-01-12 18:14:19 -0800 | [diff] [blame] | 21 | |
| 22 | import org.xmlpull.v1.XmlPullParser; |
| 23 | import org.xmlpull.v1.XmlPullParserException; |
| 24 | import org.xmlpull.v1.XmlSerializer; |
| 25 | |
| 26 | import android.app.DeviceAdmin; |
| 27 | import android.app.DeviceAdminInfo; |
| 28 | import android.app.DevicePolicyManager; |
| 29 | import android.app.IDevicePolicyManager; |
| 30 | import android.content.ComponentName; |
Dianne Hackborn | df83afa | 2010-01-20 13:37:26 -0800 | [diff] [blame^] | 31 | import android.content.ContentResolver; |
Dianne Hackborn | d684784 | 2010-01-12 18:14:19 -0800 | [diff] [blame] | 32 | import android.content.Context; |
| 33 | import android.content.Intent; |
| 34 | import android.content.pm.PackageManager; |
| 35 | import android.content.pm.ResolveInfo; |
| 36 | import android.os.Binder; |
Dianne Hackborn | df83afa | 2010-01-20 13:37:26 -0800 | [diff] [blame^] | 37 | import android.os.IBinder; |
| 38 | import android.os.IPowerManager; |
| 39 | import android.os.PowerManager; |
| 40 | import android.os.RecoverySystem; |
| 41 | import android.os.RemoteException; |
| 42 | import android.os.ServiceManager; |
| 43 | import android.provider.Settings; |
Dianne Hackborn | d684784 | 2010-01-12 18:14:19 -0800 | [diff] [blame] | 44 | import android.util.Log; |
| 45 | import android.util.Xml; |
| 46 | |
| 47 | import java.io.File; |
| 48 | import java.io.FileInputStream; |
| 49 | import java.io.FileOutputStream; |
| 50 | import java.io.IOException; |
| 51 | import java.util.List; |
| 52 | |
| 53 | /** |
| 54 | * Implementation of the device policy APIs. |
| 55 | */ |
| 56 | public class DevicePolicyManagerService extends IDevicePolicyManager.Stub { |
| 57 | private static final String TAG = "DevicePolicyManagerService"; |
| 58 | |
| 59 | private final Context mContext; |
| 60 | |
Dianne Hackborn | df83afa | 2010-01-20 13:37:26 -0800 | [diff] [blame^] | 61 | IPowerManager mIPowerManager; |
| 62 | |
Dianne Hackborn | d684784 | 2010-01-12 18:14:19 -0800 | [diff] [blame] | 63 | int mActivePasswordMode = DevicePolicyManager.PASSWORD_MODE_UNSPECIFIED; |
| 64 | int mActivePasswordLength = 0; |
| 65 | int mFailedPasswordAttempts = 0; |
| 66 | |
| 67 | ActiveAdmin mActiveAdmin; |
| 68 | |
| 69 | static class ActiveAdmin { |
| 70 | ActiveAdmin(DeviceAdminInfo _info) { |
| 71 | info = _info; |
| 72 | } |
| 73 | |
| 74 | final DeviceAdminInfo info; |
| 75 | int getUid() { return info.getActivityInfo().applicationInfo.uid; } |
| 76 | |
| 77 | int passwordMode = DevicePolicyManager.PASSWORD_MODE_UNSPECIFIED; |
| 78 | int minimumPasswordLength = 0; |
| 79 | long maximumTimeToUnlock = 0; |
| 80 | } |
| 81 | |
| 82 | /** |
| 83 | * Instantiates the service. |
| 84 | */ |
| 85 | public DevicePolicyManagerService(Context context) { |
| 86 | mContext = context; |
| 87 | } |
| 88 | |
Dianne Hackborn | df83afa | 2010-01-20 13:37:26 -0800 | [diff] [blame^] | 89 | private IPowerManager getIPowerManager() { |
| 90 | if (mIPowerManager == null) { |
| 91 | IBinder b = ServiceManager.getService(Context.POWER_SERVICE); |
| 92 | mIPowerManager = IPowerManager.Stub.asInterface(b); |
| 93 | } |
| 94 | return mIPowerManager; |
| 95 | } |
| 96 | |
Dianne Hackborn | d684784 | 2010-01-12 18:14:19 -0800 | [diff] [blame] | 97 | ActiveAdmin getActiveAdminForCallerLocked(ComponentName who) throws SecurityException { |
Dianne Hackborn | df83afa | 2010-01-20 13:37:26 -0800 | [diff] [blame^] | 98 | if (mActiveAdmin != null && mActiveAdmin.getUid() == Binder.getCallingUid()) { |
Dianne Hackborn | d684784 | 2010-01-12 18:14:19 -0800 | [diff] [blame] | 99 | if (who != null) { |
| 100 | if (!who.getPackageName().equals(mActiveAdmin.info.getActivityInfo().packageName) |
| 101 | || !who.getClassName().equals(mActiveAdmin.info.getActivityInfo().name)) { |
| 102 | throw new SecurityException("Current admin is not " + who); |
| 103 | } |
| 104 | } |
| 105 | return mActiveAdmin; |
| 106 | } |
| 107 | throw new SecurityException("Current admin is not owned by uid " + Binder.getCallingUid()); |
| 108 | } |
| 109 | |
| 110 | |
| 111 | void sendAdminCommandLocked(ActiveAdmin policy, String action) { |
| 112 | Intent intent = new Intent(action); |
| 113 | intent.setComponent(policy.info.getComponent()); |
| 114 | mContext.sendBroadcast(intent); |
| 115 | } |
| 116 | |
| 117 | ComponentName getActiveAdminLocked() { |
| 118 | if (mActiveAdmin != null) { |
| 119 | return mActiveAdmin.info.getComponent(); |
| 120 | } |
| 121 | return null; |
| 122 | } |
| 123 | |
| 124 | void removeActiveAdminLocked(ComponentName adminReceiver) { |
| 125 | ComponentName cur = getActiveAdminLocked(); |
| 126 | if (cur != null && cur.equals(adminReceiver)) { |
| 127 | sendAdminCommandLocked(mActiveAdmin, |
| 128 | DeviceAdmin.ACTION_DEVICE_ADMIN_DISABLED); |
| 129 | // XXX need to wait for it to complete. |
| 130 | mActiveAdmin = null; |
| 131 | } |
| 132 | } |
| 133 | |
| 134 | public DeviceAdminInfo findAdmin(ComponentName adminName) { |
| 135 | Intent resolveIntent = new Intent(); |
| 136 | resolveIntent.setComponent(adminName); |
| 137 | List<ResolveInfo> infos = mContext.getPackageManager().queryBroadcastReceivers( |
| 138 | resolveIntent, PackageManager.GET_META_DATA); |
| 139 | if (infos == null || infos.size() <= 0) { |
| 140 | throw new IllegalArgumentException("Unknown admin: " + adminName); |
| 141 | } |
| 142 | |
| 143 | try { |
| 144 | return new DeviceAdminInfo(mContext, infos.get(0)); |
| 145 | } catch (XmlPullParserException e) { |
| 146 | Log.w(TAG, "Bad device admin requested: " + adminName, e); |
| 147 | return null; |
| 148 | } catch (IOException e) { |
| 149 | Log.w(TAG, "Bad device admin requested: " + adminName, e); |
| 150 | return null; |
| 151 | } |
| 152 | } |
| 153 | |
| 154 | private static JournaledFile makeJournaledFile() { |
| 155 | final String base = "/data/system/device_policies.xml"; |
| 156 | return new JournaledFile(new File(base), new File(base + ".tmp")); |
| 157 | } |
| 158 | |
| 159 | private void saveSettingsLocked() { |
| 160 | JournaledFile journal = makeJournaledFile(); |
| 161 | FileOutputStream stream = null; |
| 162 | try { |
| 163 | stream = new FileOutputStream(journal.chooseForWrite(), false); |
| 164 | XmlSerializer out = new FastXmlSerializer(); |
| 165 | out.setOutput(stream, "utf-8"); |
| 166 | out.startDocument(null, true); |
| 167 | |
| 168 | out.startTag(null, "policies"); |
| 169 | |
| 170 | ActiveAdmin ap = mActiveAdmin; |
| 171 | if (ap != null) { |
| 172 | out.startTag(null, "admin"); |
| 173 | out.attribute(null, "name", ap.info.getComponent().flattenToString()); |
| 174 | if (ap.passwordMode != DevicePolicyManager.PASSWORD_MODE_UNSPECIFIED) { |
| 175 | out.startTag(null, "password-mode"); |
| 176 | out.attribute(null, "value", Integer.toString(ap.passwordMode)); |
| 177 | out.endTag(null, "password-mode"); |
| 178 | if (ap.minimumPasswordLength > 0) { |
| 179 | out.startTag(null, "min-password-length"); |
| 180 | out.attribute(null, "value", Integer.toString(ap.minimumPasswordLength)); |
| 181 | out.endTag(null, "mn-password-length"); |
| 182 | } |
| 183 | } |
| 184 | if (ap.maximumTimeToUnlock != DevicePolicyManager.PASSWORD_MODE_UNSPECIFIED) { |
| 185 | out.startTag(null, "max-time-to-unlock"); |
| 186 | out.attribute(null, "value", Long.toString(ap.maximumTimeToUnlock)); |
| 187 | out.endTag(null, "max-time-to-unlock"); |
| 188 | } |
| 189 | out.endTag(null, "admin"); |
| 190 | } |
| 191 | out.endTag(null, "policies"); |
| 192 | |
| 193 | out.endDocument(); |
| 194 | stream.close(); |
| 195 | journal.commit(); |
| 196 | } catch (IOException e) { |
| 197 | try { |
| 198 | if (stream != null) { |
| 199 | stream.close(); |
| 200 | } |
| 201 | } catch (IOException ex) { |
| 202 | // Ignore |
| 203 | } |
| 204 | journal.rollback(); |
| 205 | } |
| 206 | } |
| 207 | |
| 208 | private void loadSettingsLocked() { |
| 209 | JournaledFile journal = makeJournaledFile(); |
| 210 | FileInputStream stream = null; |
| 211 | File file = journal.chooseForRead(); |
| 212 | boolean success = false; |
| 213 | try { |
| 214 | stream = new FileInputStream(file); |
| 215 | XmlPullParser parser = Xml.newPullParser(); |
| 216 | parser.setInput(stream, null); |
| 217 | |
| 218 | int type = parser.next(); |
| 219 | while (type != XmlPullParser.START_TAG) { |
| 220 | type = parser.next(); |
| 221 | } |
| 222 | String tag = parser.getName(); |
| 223 | if ("policies".equals(tag)) { |
| 224 | ActiveAdmin ap = null; |
| 225 | do { |
| 226 | type = parser.next(); |
| 227 | if (type == XmlPullParser.START_TAG) { |
| 228 | tag = parser.getName(); |
| 229 | if (ap == null) { |
| 230 | if ("admin".equals(tag)) { |
| 231 | DeviceAdminInfo dai = findAdmin( |
| 232 | ComponentName.unflattenFromString( |
| 233 | parser.getAttributeValue(null, "name"))); |
| 234 | if (dai != null) { |
| 235 | ap = new ActiveAdmin(dai); |
| 236 | } |
| 237 | } |
| 238 | } else if ("password-mode".equals(tag)) { |
| 239 | ap.passwordMode = Integer.parseInt( |
| 240 | parser.getAttributeValue(null, "value")); |
| 241 | } else if ("min-password-length".equals(tag)) { |
| 242 | ap.minimumPasswordLength = Integer.parseInt( |
| 243 | parser.getAttributeValue(null, "value")); |
| 244 | } else if ("max-time-to-unlock".equals(tag)) { |
| 245 | ap.maximumTimeToUnlock = Long.parseLong( |
| 246 | parser.getAttributeValue(null, "value")); |
| 247 | } |
| 248 | } else if (type == XmlPullParser.END_TAG) { |
| 249 | tag = parser.getName(); |
| 250 | if (ap != null && "admin".equals(tag)) { |
| 251 | mActiveAdmin = ap; |
| 252 | ap = null; |
| 253 | } |
| 254 | } |
| 255 | } while (type != XmlPullParser.END_DOCUMENT); |
| 256 | success = true; |
| 257 | } |
| 258 | } catch (NullPointerException e) { |
| 259 | Log.w(TAG, "failed parsing " + file + " " + e); |
| 260 | } catch (NumberFormatException e) { |
| 261 | Log.w(TAG, "failed parsing " + file + " " + e); |
| 262 | } catch (XmlPullParserException e) { |
| 263 | Log.w(TAG, "failed parsing " + file + " " + e); |
| 264 | } catch (IOException e) { |
| 265 | Log.w(TAG, "failed parsing " + file + " " + e); |
| 266 | } catch (IndexOutOfBoundsException e) { |
| 267 | Log.w(TAG, "failed parsing " + file + " " + e); |
| 268 | } |
| 269 | try { |
| 270 | if (stream != null) { |
| 271 | stream.close(); |
| 272 | } |
| 273 | } catch (IOException e) { |
| 274 | // Ignore |
| 275 | } |
| 276 | |
| 277 | if (!success) { |
| 278 | Log.w(TAG, "No valid start tag found in policies file"); |
| 279 | } |
Dianne Hackborn | df83afa | 2010-01-20 13:37:26 -0800 | [diff] [blame^] | 280 | |
| 281 | long timeMs = getMaximumTimeToLock(); |
| 282 | if (timeMs <= 0) { |
| 283 | timeMs = Integer.MAX_VALUE; |
| 284 | } |
| 285 | try { |
| 286 | getIPowerManager().setMaximumScreenOffTimeount((int)timeMs); |
| 287 | } catch (RemoteException e) { |
| 288 | Log.w(TAG, "Failure talking with power manager", e); |
| 289 | } |
| 290 | |
Dianne Hackborn | d684784 | 2010-01-12 18:14:19 -0800 | [diff] [blame] | 291 | } |
| 292 | |
| 293 | public void systemReady() { |
| 294 | synchronized (this) { |
| 295 | loadSettingsLocked(); |
| 296 | } |
| 297 | } |
| 298 | |
| 299 | public void setActiveAdmin(ComponentName adminReceiver) { |
| 300 | mContext.enforceCallingOrSelfPermission( |
| 301 | android.Manifest.permission.BIND_DEVICE_ADMIN, null); |
| 302 | |
| 303 | DeviceAdminInfo info = findAdmin(adminReceiver); |
| 304 | if (info == null) { |
| 305 | throw new IllegalArgumentException("Bad admin: " + adminReceiver); |
| 306 | } |
| 307 | synchronized (this) { |
| 308 | long ident = Binder.clearCallingIdentity(); |
| 309 | try { |
| 310 | ComponentName cur = getActiveAdminLocked(); |
| 311 | if (cur != null && cur.equals(adminReceiver)) { |
| 312 | throw new IllegalStateException("An admin is already set"); |
| 313 | } |
| 314 | if (cur != null) { |
| 315 | removeActiveAdminLocked(adminReceiver); |
| 316 | } |
| 317 | mActiveAdmin = new ActiveAdmin(info); |
| 318 | saveSettingsLocked(); |
| 319 | sendAdminCommandLocked(mActiveAdmin, |
| 320 | DeviceAdmin.ACTION_DEVICE_ADMIN_ENABLED); |
| 321 | } finally { |
| 322 | Binder.restoreCallingIdentity(ident); |
| 323 | } |
| 324 | } |
| 325 | } |
| 326 | |
| 327 | public ComponentName getActiveAdmin() { |
| 328 | synchronized (this) { |
| 329 | return getActiveAdminLocked(); |
| 330 | } |
| 331 | } |
| 332 | |
| 333 | public void removeActiveAdmin(ComponentName adminReceiver) { |
| 334 | synchronized (this) { |
| 335 | if (mActiveAdmin == null || mActiveAdmin.getUid() != Binder.getCallingUid()) { |
| 336 | mContext.enforceCallingOrSelfPermission( |
| 337 | android.Manifest.permission.BIND_DEVICE_ADMIN, null); |
| 338 | } |
| 339 | long ident = Binder.clearCallingIdentity(); |
| 340 | try { |
| 341 | removeActiveAdminLocked(adminReceiver); |
| 342 | } finally { |
| 343 | Binder.restoreCallingIdentity(ident); |
| 344 | } |
| 345 | } |
| 346 | } |
| 347 | |
| 348 | public void setPasswordMode(ComponentName who, int mode) { |
| 349 | synchronized (this) { |
| 350 | if (who == null) { |
| 351 | throw new NullPointerException("ComponentName is null"); |
| 352 | } |
| 353 | ActiveAdmin ap = getActiveAdminForCallerLocked(who); |
| 354 | if (ap.passwordMode != mode) { |
| 355 | ap.passwordMode = mode; |
| 356 | saveSettingsLocked(); |
| 357 | } |
| 358 | } |
| 359 | } |
| 360 | |
| 361 | public int getPasswordMode() { |
| 362 | synchronized (this) { |
| 363 | return mActiveAdmin != null ? mActiveAdmin.passwordMode |
| 364 | : DevicePolicyManager.PASSWORD_MODE_UNSPECIFIED; |
| 365 | } |
| 366 | } |
| 367 | |
Dianne Hackborn | d684784 | 2010-01-12 18:14:19 -0800 | [diff] [blame] | 368 | public void setMinimumPasswordLength(ComponentName who, int length) { |
| 369 | synchronized (this) { |
| 370 | if (who == null) { |
| 371 | throw new NullPointerException("ComponentName is null"); |
| 372 | } |
| 373 | ActiveAdmin ap = getActiveAdminForCallerLocked(who); |
| 374 | if (ap.minimumPasswordLength != length) { |
| 375 | ap.minimumPasswordLength = length; |
| 376 | saveSettingsLocked(); |
| 377 | } |
| 378 | } |
| 379 | } |
| 380 | |
| 381 | public int getMinimumPasswordLength() { |
| 382 | synchronized (this) { |
| 383 | return mActiveAdmin != null ? mActiveAdmin.minimumPasswordLength : 0; |
| 384 | } |
| 385 | } |
| 386 | |
Dianne Hackborn | df83afa | 2010-01-20 13:37:26 -0800 | [diff] [blame^] | 387 | public boolean isActivePasswordSufficient() { |
Dianne Hackborn | d684784 | 2010-01-12 18:14:19 -0800 | [diff] [blame] | 388 | synchronized (this) { |
| 389 | // This API can only be called by an active device admin, |
| 390 | // so try to retrieve it to check that the caller is one. |
| 391 | getActiveAdminForCallerLocked(null); |
Dianne Hackborn | df83afa | 2010-01-20 13:37:26 -0800 | [diff] [blame^] | 392 | return mActivePasswordMode >= getPasswordMode() |
| 393 | && mActivePasswordLength >= getMinimumPasswordLength(); |
Dianne Hackborn | d684784 | 2010-01-12 18:14:19 -0800 | [diff] [blame] | 394 | } |
| 395 | } |
| 396 | |
| 397 | public int getCurrentFailedPasswordAttempts() { |
| 398 | synchronized (this) { |
| 399 | // This API can only be called by an active device admin, |
| 400 | // so try to retrieve it to check that the caller is one. |
| 401 | getActiveAdminForCallerLocked(null); |
| 402 | return mFailedPasswordAttempts; |
| 403 | } |
| 404 | } |
| 405 | |
Dianne Hackborn | df83afa | 2010-01-20 13:37:26 -0800 | [diff] [blame^] | 406 | public boolean resetPassword(String password) { |
| 407 | int mode; |
| 408 | synchronized (this) { |
| 409 | // This API can only be called by an active device admin, |
| 410 | // so try to retrieve it to check that the caller is one. |
| 411 | getActiveAdminForCallerLocked(null); |
| 412 | mode = getPasswordMode(); |
| 413 | if (password.length() < getMinimumPasswordLength()) { |
| 414 | return false; |
| 415 | } |
| 416 | } |
| 417 | |
| 418 | // Don't do this with the lock held, because it is going to call |
| 419 | // back in to the service. |
| 420 | long ident = Binder.clearCallingIdentity(); |
| 421 | try { |
| 422 | LockPatternUtils utils = new LockPatternUtils(mContext); |
| 423 | utils.saveLockPassword(password, mode); |
| 424 | } finally { |
| 425 | Binder.restoreCallingIdentity(ident); |
| 426 | } |
| 427 | |
| 428 | return true; |
| 429 | } |
| 430 | |
Dianne Hackborn | d684784 | 2010-01-12 18:14:19 -0800 | [diff] [blame] | 431 | public void setMaximumTimeToLock(ComponentName who, long timeMs) { |
| 432 | synchronized (this) { |
| 433 | if (who == null) { |
| 434 | throw new NullPointerException("ComponentName is null"); |
| 435 | } |
| 436 | ActiveAdmin ap = getActiveAdminForCallerLocked(who); |
| 437 | if (ap.maximumTimeToUnlock != timeMs) { |
| 438 | ap.maximumTimeToUnlock = timeMs; |
Dianne Hackborn | df83afa | 2010-01-20 13:37:26 -0800 | [diff] [blame^] | 439 | |
| 440 | long ident = Binder.clearCallingIdentity(); |
| 441 | try { |
| 442 | saveSettingsLocked(); |
| 443 | if (timeMs <= 0) { |
| 444 | timeMs = Integer.MAX_VALUE; |
| 445 | } |
| 446 | try { |
| 447 | getIPowerManager().setMaximumScreenOffTimeount((int)timeMs); |
| 448 | } catch (RemoteException e) { |
| 449 | Log.w(TAG, "Failure talking with power manager", e); |
| 450 | } |
| 451 | } finally { |
| 452 | Binder.restoreCallingIdentity(ident); |
| 453 | } |
Dianne Hackborn | d684784 | 2010-01-12 18:14:19 -0800 | [diff] [blame] | 454 | } |
| 455 | } |
| 456 | } |
| 457 | |
| 458 | public long getMaximumTimeToLock() { |
| 459 | synchronized (this) { |
| 460 | return mActiveAdmin != null ? mActiveAdmin.maximumTimeToUnlock : 0; |
| 461 | } |
| 462 | } |
| 463 | |
Dianne Hackborn | df83afa | 2010-01-20 13:37:26 -0800 | [diff] [blame^] | 464 | public void lockNow() { |
| 465 | synchronized (this) { |
| 466 | // This API can only be called by an active device admin, |
| 467 | // so try to retrieve it to check that the caller is one. |
| 468 | getActiveAdminForCallerLocked(null); |
| 469 | // STOPSHIP need to implement. |
| 470 | } |
| 471 | } |
| 472 | |
Dianne Hackborn | d684784 | 2010-01-12 18:14:19 -0800 | [diff] [blame] | 473 | public void wipeData(int flags) { |
| 474 | synchronized (this) { |
| 475 | // This API can only be called by an active device admin, |
| 476 | // so try to retrieve it to check that the caller is one. |
| 477 | getActiveAdminForCallerLocked(null); |
Dianne Hackborn | df83afa | 2010-01-20 13:37:26 -0800 | [diff] [blame^] | 478 | } |
| 479 | long ident = Binder.clearCallingIdentity(); |
| 480 | try { |
| 481 | RecoverySystem.rebootWipeUserData(mContext); |
| 482 | } catch (IOException e) { |
| 483 | Log.w(TAG, "Failed requesting data wipe", e); |
| 484 | } finally { |
| 485 | Binder.restoreCallingIdentity(ident); |
Dianne Hackborn | d684784 | 2010-01-12 18:14:19 -0800 | [diff] [blame] | 486 | } |
| 487 | } |
| 488 | |
| 489 | public void setActivePasswordState(int mode, int length) { |
| 490 | mContext.enforceCallingOrSelfPermission( |
| 491 | android.Manifest.permission.BIND_DEVICE_ADMIN, null); |
| 492 | |
| 493 | synchronized (this) { |
| 494 | if (mActivePasswordMode != mode || mActivePasswordLength != length |
| 495 | || mFailedPasswordAttempts != 0) { |
| 496 | long ident = Binder.clearCallingIdentity(); |
| 497 | try { |
| 498 | mActivePasswordMode = mode; |
| 499 | mActivePasswordLength = length; |
| 500 | mFailedPasswordAttempts = 0; |
| 501 | sendAdminCommandLocked(mActiveAdmin, |
| 502 | DeviceAdmin.ACTION_PASSWORD_CHANGED); |
| 503 | } finally { |
| 504 | Binder.restoreCallingIdentity(ident); |
| 505 | } |
| 506 | } |
| 507 | } |
| 508 | } |
| 509 | |
| 510 | public void reportFailedPasswordAttempt() { |
| 511 | mContext.enforceCallingOrSelfPermission( |
| 512 | android.Manifest.permission.BIND_DEVICE_ADMIN, null); |
| 513 | |
| 514 | synchronized (this) { |
| 515 | long ident = Binder.clearCallingIdentity(); |
| 516 | try { |
| 517 | mFailedPasswordAttempts++; |
| 518 | sendAdminCommandLocked(mActiveAdmin, |
| 519 | DeviceAdmin.ACTION_PASSWORD_FAILED); |
| 520 | } finally { |
| 521 | Binder.restoreCallingIdentity(ident); |
| 522 | } |
| 523 | } |
| 524 | } |
| 525 | |
| 526 | public void reportSuccessfulPasswordAttempt() { |
| 527 | mContext.enforceCallingOrSelfPermission( |
| 528 | android.Manifest.permission.BIND_DEVICE_ADMIN, null); |
| 529 | |
| 530 | synchronized (this) { |
| 531 | if (mFailedPasswordAttempts != 0) { |
| 532 | long ident = Binder.clearCallingIdentity(); |
| 533 | try { |
| 534 | mFailedPasswordAttempts = 0; |
| 535 | sendAdminCommandLocked(mActiveAdmin, |
| 536 | DeviceAdmin.ACTION_PASSWORD_SUCCEEDED); |
| 537 | } finally { |
| 538 | Binder.restoreCallingIdentity(ident); |
| 539 | } |
| 540 | } |
| 541 | } |
| 542 | } |
| 543 | } |