| /* |
| * Copyright (C) 2010 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package com.android.server; |
| |
| import com.android.internal.content.PackageMonitor; |
| import com.android.internal.os.storage.ExternalStorageFormatter; |
| import com.android.internal.util.FastXmlSerializer; |
| import com.android.internal.util.JournaledFile; |
| import com.android.internal.util.XmlUtils; |
| import com.android.internal.widget.LockPatternUtils; |
| |
| import org.xmlpull.v1.XmlPullParser; |
| import org.xmlpull.v1.XmlPullParserException; |
| import org.xmlpull.v1.XmlSerializer; |
| |
| import android.app.Activity; |
| import android.app.AlarmManager; |
| import android.app.PendingIntent; |
| import android.app.admin.DeviceAdminInfo; |
| import android.app.admin.DeviceAdminReceiver; |
| import android.app.admin.DevicePolicyManager; |
| import android.app.admin.IDevicePolicyManager; |
| import android.content.BroadcastReceiver; |
| import android.content.ComponentName; |
| import android.content.ContentResolver; |
| import android.content.Context; |
| import android.content.Intent; |
| import android.content.IntentFilter; |
| import android.content.pm.PackageManager; |
| import android.content.pm.PackageManager.NameNotFoundException; |
| import android.content.pm.ResolveInfo; |
| import android.os.Binder; |
| import android.os.Handler; |
| import android.os.IBinder; |
| import android.os.IPowerManager; |
| import android.os.PowerManager; |
| import android.os.RecoverySystem; |
| import android.os.RemoteCallback; |
| import android.os.RemoteException; |
| import android.os.ServiceManager; |
| import android.os.SystemClock; |
| import android.os.SystemProperties; |
| import android.provider.Settings; |
| import android.util.PrintWriterPrinter; |
| import android.util.Printer; |
| import android.util.Slog; |
| import android.util.Xml; |
| import android.view.WindowManagerPolicy; |
| |
| import java.io.File; |
| import java.io.FileDescriptor; |
| import java.io.FileInputStream; |
| import java.io.FileNotFoundException; |
| import java.io.FileOutputStream; |
| import java.io.IOException; |
| import java.io.PrintWriter; |
| import java.text.DateFormat; |
| import java.util.ArrayList; |
| import java.util.Date; |
| import java.util.HashMap; |
| import java.util.List; |
| import java.util.Set; |
| |
| /** |
| * Implementation of the device policy APIs. |
| */ |
| public class DevicePolicyManagerService extends IDevicePolicyManager.Stub { |
| private static final String TAG = "DevicePolicyManagerService"; |
| |
| private static final int REQUEST_EXPIRE_PASSWORD = 5571; |
| |
| private static final long EXPIRATION_GRACE_PERIOD_MS = 5 * 86400 * 1000; // 5 days, in ms |
| |
| protected static final String ACTION_EXPIRED_PASSWORD_NOTIFICATION |
| = "com.android.server.ACTION_EXPIRED_PASSWORD_NOTIFICATION"; |
| |
| private static final long MS_PER_DAY = 86400 * 1000; |
| |
| final Context mContext; |
| final MyPackageMonitor mMonitor; |
| final PowerManager.WakeLock mWakeLock; |
| |
| IPowerManager mIPowerManager; |
| |
| int mActivePasswordQuality = DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED; |
| int mActivePasswordLength = 0; |
| int mActivePasswordUpperCase = 0; |
| int mActivePasswordLowerCase = 0; |
| int mActivePasswordLetters = 0; |
| int mActivePasswordNumeric = 0; |
| int mActivePasswordSymbols = 0; |
| int mActivePasswordNonLetter = 0; |
| int mFailedPasswordAttempts = 0; |
| |
| int mPasswordOwner = -1; |
| Handler mHandler = new Handler(); |
| |
| final HashMap<ComponentName, ActiveAdmin> mAdminMap |
| = new HashMap<ComponentName, ActiveAdmin>(); |
| final ArrayList<ActiveAdmin> mAdminList |
| = new ArrayList<ActiveAdmin>(); |
| |
| BroadcastReceiver mReceiver = new BroadcastReceiver() { |
| @Override |
| public void onReceive(Context context, Intent intent) { |
| String action = intent.getAction(); |
| if (Intent.ACTION_BOOT_COMPLETED.equals(action) |
| || ACTION_EXPIRED_PASSWORD_NOTIFICATION.equals(action)) { |
| Slog.v(TAG, "Sending password expiration notifications for action " + action); |
| mHandler.post(new Runnable() { |
| public void run() { |
| handlePasswordExpirationNotification(); |
| } |
| }); |
| } |
| } |
| }; |
| |
| static class ActiveAdmin { |
| final DeviceAdminInfo info; |
| |
| int passwordQuality = DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED; |
| |
| static final int DEF_MINIMUM_PASSWORD_LENGTH = 0; |
| int minimumPasswordLength = DEF_MINIMUM_PASSWORD_LENGTH; |
| |
| static final int DEF_PASSWORD_HISTORY_LENGTH = 0; |
| int passwordHistoryLength = DEF_PASSWORD_HISTORY_LENGTH; |
| |
| static final int DEF_MINIMUM_PASSWORD_UPPER_CASE = 0; |
| int minimumPasswordUpperCase = DEF_MINIMUM_PASSWORD_UPPER_CASE; |
| |
| static final int DEF_MINIMUM_PASSWORD_LOWER_CASE = 0; |
| int minimumPasswordLowerCase = DEF_MINIMUM_PASSWORD_LOWER_CASE; |
| |
| static final int DEF_MINIMUM_PASSWORD_LETTERS = 1; |
| int minimumPasswordLetters = DEF_MINIMUM_PASSWORD_LETTERS; |
| |
| static final int DEF_MINIMUM_PASSWORD_NUMERIC = 1; |
| int minimumPasswordNumeric = DEF_MINIMUM_PASSWORD_NUMERIC; |
| |
| static final int DEF_MINIMUM_PASSWORD_SYMBOLS = 1; |
| int minimumPasswordSymbols = DEF_MINIMUM_PASSWORD_SYMBOLS; |
| |
| static final int DEF_MINIMUM_PASSWORD_NON_LETTER = 0; |
| int minimumPasswordNonLetter = DEF_MINIMUM_PASSWORD_NON_LETTER; |
| |
| static final long DEF_MAXIMUM_TIME_TO_UNLOCK = 0; |
| long maximumTimeToUnlock = DEF_MAXIMUM_TIME_TO_UNLOCK; |
| |
| static final int DEF_MAXIMUM_FAILED_PASSWORDS_FOR_WIPE = 0; |
| int maximumFailedPasswordsForWipe = DEF_MAXIMUM_FAILED_PASSWORDS_FOR_WIPE; |
| |
| static final long DEF_PASSWORD_EXPIRATION_TIMEOUT = 0; |
| long passwordExpirationTimeout = DEF_PASSWORD_EXPIRATION_TIMEOUT; |
| |
| static final long DEF_PASSWORD_EXPIRATION_DATE = 0; |
| long passwordExpirationDate = DEF_PASSWORD_EXPIRATION_DATE; |
| |
| boolean encryptionRequested = false; |
| boolean disableCamera = false; |
| |
| // TODO: review implementation decisions with frameworks team |
| boolean specifiesGlobalProxy = false; |
| String globalProxySpec = null; |
| String globalProxyExclusionList = null; |
| |
| ActiveAdmin(DeviceAdminInfo _info) { |
| info = _info; |
| } |
| |
| int getUid() { return info.getActivityInfo().applicationInfo.uid; } |
| |
| void writeToXml(XmlSerializer out) |
| throws IllegalArgumentException, IllegalStateException, IOException { |
| out.startTag(null, "policies"); |
| info.writePoliciesToXml(out); |
| out.endTag(null, "policies"); |
| if (passwordQuality != DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED) { |
| out.startTag(null, "password-quality"); |
| out.attribute(null, "value", Integer.toString(passwordQuality)); |
| out.endTag(null, "password-quality"); |
| if (minimumPasswordLength != DEF_MINIMUM_PASSWORD_LENGTH) { |
| out.startTag(null, "min-password-length"); |
| out.attribute(null, "value", Integer.toString(minimumPasswordLength)); |
| out.endTag(null, "min-password-length"); |
| } |
| if(passwordHistoryLength != DEF_PASSWORD_HISTORY_LENGTH) { |
| out.startTag(null, "password-history-length"); |
| out.attribute(null, "value", Integer.toString(passwordHistoryLength)); |
| out.endTag(null, "password-history-length"); |
| } |
| if (minimumPasswordUpperCase != DEF_MINIMUM_PASSWORD_UPPER_CASE) { |
| out.startTag(null, "min-password-uppercase"); |
| out.attribute(null, "value", Integer.toString(minimumPasswordUpperCase)); |
| out.endTag(null, "min-password-uppercase"); |
| } |
| if (minimumPasswordLowerCase != DEF_MINIMUM_PASSWORD_LOWER_CASE) { |
| out.startTag(null, "min-password-lowercase"); |
| out.attribute(null, "value", Integer.toString(minimumPasswordLowerCase)); |
| out.endTag(null, "min-password-lowercase"); |
| } |
| if (minimumPasswordLetters != DEF_MINIMUM_PASSWORD_LETTERS) { |
| out.startTag(null, "min-password-letters"); |
| out.attribute(null, "value", Integer.toString(minimumPasswordLetters)); |
| out.endTag(null, "min-password-letters"); |
| } |
| if (minimumPasswordNumeric != DEF_MINIMUM_PASSWORD_NUMERIC) { |
| out.startTag(null, "min-password-numeric"); |
| out.attribute(null, "value", Integer.toString(minimumPasswordNumeric)); |
| out.endTag(null, "min-password-numeric"); |
| } |
| if (minimumPasswordSymbols != DEF_MINIMUM_PASSWORD_SYMBOLS) { |
| out.startTag(null, "min-password-symbols"); |
| out.attribute(null, "value", Integer.toString(minimumPasswordSymbols)); |
| out.endTag(null, "min-password-symbols"); |
| } |
| if (minimumPasswordNonLetter > DEF_MINIMUM_PASSWORD_NON_LETTER) { |
| out.startTag(null, "min-password-nonletter"); |
| out.attribute(null, "value", Integer.toString(minimumPasswordNonLetter)); |
| out.endTag(null, "min-password-nonletter"); |
| } |
| } |
| if (maximumTimeToUnlock != DEF_MAXIMUM_TIME_TO_UNLOCK) { |
| out.startTag(null, "max-time-to-unlock"); |
| out.attribute(null, "value", Long.toString(maximumTimeToUnlock)); |
| out.endTag(null, "max-time-to-unlock"); |
| } |
| if (maximumFailedPasswordsForWipe != DEF_MAXIMUM_FAILED_PASSWORDS_FOR_WIPE) { |
| out.startTag(null, "max-failed-password-wipe"); |
| out.attribute(null, "value", Integer.toString(maximumFailedPasswordsForWipe)); |
| out.endTag(null, "max-failed-password-wipe"); |
| } |
| if (specifiesGlobalProxy) { |
| out.startTag(null, "specifies-global-proxy"); |
| out.attribute(null, "value", Boolean.toString(specifiesGlobalProxy)); |
| out.endTag(null, "specifies_global_proxy"); |
| if (globalProxySpec != null) { |
| out.startTag(null, "global-proxy-spec"); |
| out.attribute(null, "value", globalProxySpec); |
| out.endTag(null, "global-proxy-spec"); |
| } |
| if (globalProxyExclusionList != null) { |
| out.startTag(null, "global-proxy-exclusion-list"); |
| out.attribute(null, "value", globalProxyExclusionList); |
| out.endTag(null, "global-proxy-exclusion-list"); |
| } |
| } |
| if (passwordExpirationTimeout != DEF_PASSWORD_EXPIRATION_TIMEOUT) { |
| out.startTag(null, "password-expiration-timeout"); |
| out.attribute(null, "value", Long.toString(passwordExpirationTimeout)); |
| out.endTag(null, "password-expiration-timeout"); |
| } |
| if (passwordExpirationDate != DEF_PASSWORD_EXPIRATION_DATE) { |
| out.startTag(null, "password-expiration-date"); |
| out.attribute(null, "value", Long.toString(passwordExpirationDate)); |
| out.endTag(null, "password-expiration-date"); |
| } |
| if (encryptionRequested) { |
| out.startTag(null, "encryption-requested"); |
| out.attribute(null, "value", Boolean.toString(encryptionRequested)); |
| out.endTag(null, "encryption-requested"); |
| } |
| if (disableCamera) { |
| out.startTag(null, "disable-camera"); |
| out.attribute(null, "value", Boolean.toString(disableCamera)); |
| out.endTag(null, "disable-camera"); |
| } |
| } |
| |
| void readFromXml(XmlPullParser parser) |
| throws XmlPullParserException, IOException { |
| int outerDepth = parser.getDepth(); |
| int type; |
| while ((type=parser.next()) != XmlPullParser.END_DOCUMENT |
| && (type != XmlPullParser.END_TAG || parser.getDepth() > outerDepth)) { |
| if (type == XmlPullParser.END_TAG || type == XmlPullParser.TEXT) { |
| continue; |
| } |
| String tag = parser.getName(); |
| if ("policies".equals(tag)) { |
| info.readPoliciesFromXml(parser); |
| } else if ("password-quality".equals(tag)) { |
| passwordQuality = Integer.parseInt( |
| parser.getAttributeValue(null, "value")); |
| } else if ("min-password-length".equals(tag)) { |
| minimumPasswordLength = Integer.parseInt( |
| parser.getAttributeValue(null, "value")); |
| } else if ("password-history-length".equals(tag)) { |
| passwordHistoryLength = Integer.parseInt( |
| parser.getAttributeValue(null, "value")); |
| } else if ("min-password-uppercase".equals(tag)) { |
| minimumPasswordUpperCase = Integer.parseInt( |
| parser.getAttributeValue(null, "value")); |
| } else if ("min-password-lowercase".equals(tag)) { |
| minimumPasswordLowerCase = Integer.parseInt( |
| parser.getAttributeValue(null, "value")); |
| } else if ("min-password-letters".equals(tag)) { |
| minimumPasswordLetters = Integer.parseInt( |
| parser.getAttributeValue(null, "value")); |
| } else if ("min-password-numeric".equals(tag)) { |
| minimumPasswordNumeric = Integer.parseInt( |
| parser.getAttributeValue(null, "value")); |
| } else if ("min-password-symbols".equals(tag)) { |
| minimumPasswordSymbols = Integer.parseInt( |
| parser.getAttributeValue(null, "value")); |
| } else if ("min-password-nonletter".equals(tag)) { |
| minimumPasswordNonLetter = Integer.parseInt( |
| parser.getAttributeValue(null, "value")); |
| } else if ("max-time-to-unlock".equals(tag)) { |
| maximumTimeToUnlock = Long.parseLong( |
| parser.getAttributeValue(null, "value")); |
| } else if ("max-failed-password-wipe".equals(tag)) { |
| maximumFailedPasswordsForWipe = Integer.parseInt( |
| parser.getAttributeValue(null, "value")); |
| } else if ("specifies-global-proxy".equals(tag)) { |
| specifiesGlobalProxy = Boolean.parseBoolean( |
| parser.getAttributeValue(null, "value")); |
| } else if ("global-proxy-spec".equals(tag)) { |
| globalProxySpec = |
| parser.getAttributeValue(null, "value"); |
| } else if ("global-proxy-exclusion-list".equals(tag)) { |
| globalProxyExclusionList = |
| parser.getAttributeValue(null, "value"); |
| } else if ("password-expiration-timeout".equals(tag)) { |
| passwordExpirationTimeout = Long.parseLong( |
| parser.getAttributeValue(null, "value")); |
| } else if ("password-expiration-date".equals(tag)) { |
| passwordExpirationDate = Long.parseLong( |
| parser.getAttributeValue(null, "value")); |
| } else if ("encryption-requested".equals(tag)) { |
| encryptionRequested = Boolean.parseBoolean( |
| parser.getAttributeValue(null, "value")); |
| } else if ("disable-camera".equals(tag)) { |
| disableCamera = Boolean.parseBoolean( |
| parser.getAttributeValue(null, "value")); |
| } else { |
| Slog.w(TAG, "Unknown admin tag: " + tag); |
| } |
| XmlUtils.skipCurrentTag(parser); |
| } |
| } |
| |
| void dump(String prefix, PrintWriter pw) { |
| pw.print(prefix); pw.print("uid="); pw.println(getUid()); |
| pw.print(prefix); pw.println("policies:"); |
| ArrayList<DeviceAdminInfo.PolicyInfo> pols = info.getUsedPolicies(); |
| if (pols != null) { |
| for (int i=0; i<pols.size(); i++) { |
| pw.print(prefix); pw.print(" "); pw.println(pols.get(i).tag); |
| } |
| } |
| pw.print(prefix); pw.print("passwordQuality=0x"); |
| pw.println(Integer.toHexString(passwordQuality)); |
| pw.print(prefix); pw.print("minimumPasswordLength="); |
| pw.println(minimumPasswordLength); |
| pw.print(prefix); pw.print("passwordHistoryLength="); |
| pw.println(passwordHistoryLength); |
| pw.print(prefix); pw.print("minimumPasswordUpperCase="); |
| pw.println(minimumPasswordUpperCase); |
| pw.print(prefix); pw.print("minimumPasswordLowerCase="); |
| pw.println(minimumPasswordLowerCase); |
| pw.print(prefix); pw.print("minimumPasswordLetters="); |
| pw.println(minimumPasswordLetters); |
| pw.print(prefix); pw.print("minimumPasswordNumeric="); |
| pw.println(minimumPasswordNumeric); |
| pw.print(prefix); pw.print("minimumPasswordSymbols="); |
| pw.println(minimumPasswordSymbols); |
| pw.print(prefix); pw.print("minimumPasswordNonLetter="); |
| pw.println(minimumPasswordNonLetter); |
| pw.print(prefix); pw.print("maximumTimeToUnlock="); |
| pw.println(maximumTimeToUnlock); |
| pw.print(prefix); pw.print("maximumFailedPasswordsForWipe="); |
| pw.println(maximumFailedPasswordsForWipe); |
| pw.print(prefix); pw.print("specifiesGlobalProxy="); |
| pw.println(specifiesGlobalProxy); |
| pw.print(prefix); pw.print("passwordExpirationTimeout="); |
| pw.println(passwordExpirationTimeout); |
| pw.print(prefix); pw.print("passwordExpirationDate="); |
| pw.println(passwordExpirationDate); |
| if (globalProxySpec != null) { |
| pw.print(prefix); pw.print("globalProxySpec="); |
| pw.println(globalProxySpec); |
| } |
| if (globalProxyExclusionList != null) { |
| pw.print(prefix); pw.print("globalProxyEclusionList="); |
| pw.println(globalProxyExclusionList); |
| } |
| pw.print(prefix); pw.print("encryptionRequested="); |
| pw.println(encryptionRequested); |
| pw.print(prefix); pw.print("disableCamera="); |
| pw.println(disableCamera); |
| } |
| } |
| |
| class MyPackageMonitor extends PackageMonitor { |
| @Override |
| public void onSomePackagesChanged() { |
| synchronized (DevicePolicyManagerService.this) { |
| boolean removed = false; |
| for (int i=mAdminList.size()-1; i>=0; i--) { |
| ActiveAdmin aa = mAdminList.get(i); |
| int change = isPackageDisappearing(aa.info.getPackageName()); |
| if (change == PACKAGE_PERMANENT_CHANGE |
| || change == PACKAGE_TEMPORARY_CHANGE) { |
| Slog.w(TAG, "Admin unexpectedly uninstalled: " |
| + aa.info.getComponent()); |
| removed = true; |
| mAdminList.remove(i); |
| } else if (isPackageModified(aa.info.getPackageName())) { |
| try { |
| mContext.getPackageManager().getReceiverInfo( |
| aa.info.getComponent(), 0); |
| } catch (NameNotFoundException e) { |
| Slog.w(TAG, "Admin package change removed component: " |
| + aa.info.getComponent()); |
| removed = true; |
| mAdminList.remove(i); |
| } |
| } |
| } |
| if (removed) { |
| validatePasswordOwnerLocked(); |
| syncDeviceCapabilitiesLocked(); |
| saveSettingsLocked(); |
| } |
| } |
| } |
| } |
| |
| /** |
| * Instantiates the service. |
| */ |
| public DevicePolicyManagerService(Context context) { |
| mContext = context; |
| mMonitor = new MyPackageMonitor(); |
| mMonitor.register(context, true); |
| mWakeLock = ((PowerManager)context.getSystemService(Context.POWER_SERVICE)) |
| .newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, "DPM"); |
| IntentFilter filter = new IntentFilter(); |
| filter.addAction(Intent.ACTION_BOOT_COMPLETED); |
| filter.addAction(ACTION_EXPIRED_PASSWORD_NOTIFICATION); |
| context.registerReceiver(mReceiver, filter); |
| } |
| |
| /** |
| * Set an alarm for an upcoming event - expiration warning, expiration, or post-expiration |
| * reminders. Clears alarm if no expirations are configured. |
| */ |
| protected void setExpirationAlarmCheckLocked(Context context) { |
| final long expiration = getPasswordExpirationLocked(null); |
| final long now = System.currentTimeMillis(); |
| final long timeToExpire = expiration - now; |
| final long alarmTime; |
| if (expiration == 0) { |
| // No expirations are currently configured: Cancel alarm. |
| alarmTime = 0; |
| } else if (timeToExpire <= 0) { |
| // The password has already expired: Repeat every 24 hours. |
| alarmTime = now + MS_PER_DAY; |
| } else { |
| // Selecting the next alarm time: Roll forward to the next 24 hour multiple before |
| // the expiration time. |
| long alarmInterval = timeToExpire % MS_PER_DAY; |
| if (alarmInterval == 0) { |
| alarmInterval = MS_PER_DAY; |
| } |
| alarmTime = now + alarmInterval; |
| } |
| |
| long token = Binder.clearCallingIdentity(); |
| try { |
| AlarmManager am = (AlarmManager) context.getSystemService(Context.ALARM_SERVICE); |
| PendingIntent pi = PendingIntent.getBroadcast(context, REQUEST_EXPIRE_PASSWORD, |
| new Intent(ACTION_EXPIRED_PASSWORD_NOTIFICATION), |
| PendingIntent.FLAG_ONE_SHOT | PendingIntent.FLAG_UPDATE_CURRENT); |
| am.cancel(pi); |
| if (alarmTime != 0) { |
| am.set(AlarmManager.RTC, alarmTime, pi); |
| } |
| } finally { |
| Binder.restoreCallingIdentity(token); |
| } |
| } |
| |
| private IPowerManager getIPowerManager() { |
| if (mIPowerManager == null) { |
| IBinder b = ServiceManager.getService(Context.POWER_SERVICE); |
| mIPowerManager = IPowerManager.Stub.asInterface(b); |
| } |
| return mIPowerManager; |
| } |
| |
| ActiveAdmin getActiveAdminUncheckedLocked(ComponentName who) { |
| ActiveAdmin admin = mAdminMap.get(who); |
| if (admin != null |
| && who.getPackageName().equals(admin.info.getActivityInfo().packageName) |
| && who.getClassName().equals(admin.info.getActivityInfo().name)) { |
| return admin; |
| } |
| return null; |
| } |
| |
| ActiveAdmin getActiveAdminForCallerLocked(ComponentName who, int reqPolicy) |
| throws SecurityException { |
| final int callingUid = Binder.getCallingUid(); |
| if (who != null) { |
| ActiveAdmin admin = mAdminMap.get(who); |
| if (admin == null) { |
| throw new SecurityException("No active admin " + who); |
| } |
| if (admin.getUid() != callingUid) { |
| throw new SecurityException("Admin " + who + " is not owned by uid " |
| + Binder.getCallingUid()); |
| } |
| if (!admin.info.usesPolicy(reqPolicy)) { |
| throw new SecurityException("Admin " + admin.info.getComponent() |
| + " did not specify uses-policy for: " |
| + admin.info.getTagForPolicy(reqPolicy)); |
| } |
| return admin; |
| } else { |
| final int N = mAdminList.size(); |
| for (int i=0; i<N; i++) { |
| ActiveAdmin admin = mAdminList.get(i); |
| if (admin.getUid() == callingUid && admin.info.usesPolicy(reqPolicy)) { |
| return admin; |
| } |
| } |
| throw new SecurityException("No active admin owned by uid " |
| + Binder.getCallingUid() + " for policy #" + reqPolicy); |
| } |
| } |
| |
| void sendAdminCommandLocked(ActiveAdmin admin, String action) { |
| sendAdminCommandLocked(admin, action, null); |
| } |
| |
| void sendAdminCommandLocked(ActiveAdmin admin, String action, BroadcastReceiver result) { |
| Intent intent = new Intent(action); |
| intent.setComponent(admin.info.getComponent()); |
| if (action.equals(DeviceAdminReceiver.ACTION_PASSWORD_EXPIRING)) { |
| intent.putExtra("expiration", admin.passwordExpirationDate); |
| } |
| if (result != null) { |
| mContext.sendOrderedBroadcast(intent, null, result, mHandler, |
| Activity.RESULT_OK, null, null); |
| } else { |
| mContext.sendBroadcast(intent); |
| } |
| } |
| |
| void sendAdminCommandLocked(String action, int reqPolicy) { |
| final int N = mAdminList.size(); |
| if (N > 0) { |
| for (int i=0; i<N; i++) { |
| ActiveAdmin admin = mAdminList.get(i); |
| if (admin.info.usesPolicy(reqPolicy)) { |
| sendAdminCommandLocked(admin, action); |
| } |
| } |
| } |
| } |
| |
| void removeActiveAdminLocked(final ComponentName adminReceiver) { |
| final ActiveAdmin admin = getActiveAdminUncheckedLocked(adminReceiver); |
| if (admin != null) { |
| sendAdminCommandLocked(admin, |
| DeviceAdminReceiver.ACTION_DEVICE_ADMIN_DISABLED, |
| new BroadcastReceiver() { |
| @Override |
| public void onReceive(Context context, Intent intent) { |
| synchronized (this) { |
| boolean doProxyCleanup = admin.info.usesPolicy( |
| DeviceAdminInfo.USES_POLICY_SETS_GLOBAL_PROXY); |
| mAdminList.remove(admin); |
| mAdminMap.remove(adminReceiver); |
| validatePasswordOwnerLocked(); |
| syncDeviceCapabilitiesLocked(); |
| if (doProxyCleanup) { |
| resetGlobalProxy(); |
| } |
| saveSettingsLocked(); |
| } |
| } |
| }); |
| } |
| } |
| |
| public DeviceAdminInfo findAdmin(ComponentName adminName) { |
| Intent resolveIntent = new Intent(); |
| resolveIntent.setComponent(adminName); |
| List<ResolveInfo> infos = mContext.getPackageManager().queryBroadcastReceivers( |
| resolveIntent, PackageManager.GET_META_DATA); |
| if (infos == null || infos.size() <= 0) { |
| throw new IllegalArgumentException("Unknown admin: " + adminName); |
| } |
| |
| try { |
| return new DeviceAdminInfo(mContext, infos.get(0)); |
| } catch (XmlPullParserException e) { |
| Slog.w(TAG, "Bad device admin requested: " + adminName, e); |
| return null; |
| } catch (IOException e) { |
| Slog.w(TAG, "Bad device admin requested: " + adminName, e); |
| return null; |
| } |
| } |
| |
| private static JournaledFile makeJournaledFile() { |
| final String base = "/data/system/device_policies.xml"; |
| return new JournaledFile(new File(base), new File(base + ".tmp")); |
| } |
| |
| private void saveSettingsLocked() { |
| JournaledFile journal = makeJournaledFile(); |
| FileOutputStream stream = null; |
| try { |
| stream = new FileOutputStream(journal.chooseForWrite(), false); |
| XmlSerializer out = new FastXmlSerializer(); |
| out.setOutput(stream, "utf-8"); |
| out.startDocument(null, true); |
| |
| out.startTag(null, "policies"); |
| |
| final int N = mAdminList.size(); |
| for (int i=0; i<N; i++) { |
| ActiveAdmin ap = mAdminList.get(i); |
| if (ap != null) { |
| out.startTag(null, "admin"); |
| out.attribute(null, "name", ap.info.getComponent().flattenToString()); |
| ap.writeToXml(out); |
| out.endTag(null, "admin"); |
| } |
| } |
| |
| if (mPasswordOwner >= 0) { |
| out.startTag(null, "password-owner"); |
| out.attribute(null, "value", Integer.toString(mPasswordOwner)); |
| out.endTag(null, "password-owner"); |
| } |
| |
| if (mFailedPasswordAttempts != 0) { |
| out.startTag(null, "failed-password-attempts"); |
| out.attribute(null, "value", Integer.toString(mFailedPasswordAttempts)); |
| out.endTag(null, "failed-password-attempts"); |
| } |
| |
| if (mActivePasswordQuality != 0 || mActivePasswordLength != 0 |
| || mActivePasswordUpperCase != 0 || mActivePasswordLowerCase != 0 |
| || mActivePasswordLetters != 0 || mActivePasswordNumeric != 0 |
| || mActivePasswordSymbols != 0 || mActivePasswordNonLetter != 0) { |
| out.startTag(null, "active-password"); |
| out.attribute(null, "quality", Integer.toString(mActivePasswordQuality)); |
| out.attribute(null, "length", Integer.toString(mActivePasswordLength)); |
| out.attribute(null, "uppercase", Integer.toString(mActivePasswordUpperCase)); |
| out.attribute(null, "lowercase", Integer.toString(mActivePasswordLowerCase)); |
| out.attribute(null, "letters", Integer.toString(mActivePasswordLetters)); |
| out.attribute(null, "numeric", Integer |
| .toString(mActivePasswordNumeric)); |
| out.attribute(null, "symbols", Integer.toString(mActivePasswordSymbols)); |
| out.attribute(null, "nonletter", Integer.toString(mActivePasswordNonLetter)); |
| out.endTag(null, "active-password"); |
| } |
| |
| out.endTag(null, "policies"); |
| |
| out.endDocument(); |
| stream.close(); |
| journal.commit(); |
| sendChangedNotification(); |
| } catch (IOException e) { |
| try { |
| if (stream != null) { |
| stream.close(); |
| } |
| } catch (IOException ex) { |
| // Ignore |
| } |
| journal.rollback(); |
| } |
| } |
| |
| private void sendChangedNotification() { |
| Intent intent = new Intent(DevicePolicyManager.ACTION_DEVICE_POLICY_MANAGER_STATE_CHANGED); |
| intent.setFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY); |
| mContext.sendBroadcast(intent); |
| } |
| |
| private void loadSettingsLocked() { |
| JournaledFile journal = makeJournaledFile(); |
| FileInputStream stream = null; |
| File file = journal.chooseForRead(); |
| try { |
| stream = new FileInputStream(file); |
| XmlPullParser parser = Xml.newPullParser(); |
| parser.setInput(stream, null); |
| |
| int type; |
| while ((type=parser.next()) != XmlPullParser.END_DOCUMENT |
| && type != XmlPullParser.START_TAG) { |
| } |
| String tag = parser.getName(); |
| if (!"policies".equals(tag)) { |
| throw new XmlPullParserException( |
| "Settings do not start with policies tag: found " + tag); |
| } |
| type = parser.next(); |
| int outerDepth = parser.getDepth(); |
| while ((type=parser.next()) != XmlPullParser.END_DOCUMENT |
| && (type != XmlPullParser.END_TAG || parser.getDepth() > outerDepth)) { |
| if (type == XmlPullParser.END_TAG || type == XmlPullParser.TEXT) { |
| continue; |
| } |
| tag = parser.getName(); |
| if ("admin".equals(tag)) { |
| String name = parser.getAttributeValue(null, "name"); |
| try { |
| DeviceAdminInfo dai = findAdmin( |
| ComponentName.unflattenFromString(name)); |
| if (dai != null) { |
| ActiveAdmin ap = new ActiveAdmin(dai); |
| ap.readFromXml(parser); |
| mAdminMap.put(ap.info.getComponent(), ap); |
| mAdminList.add(ap); |
| } |
| } catch (RuntimeException e) { |
| Slog.w(TAG, "Failed loading admin " + name, e); |
| } |
| } else if ("failed-password-attempts".equals(tag)) { |
| mFailedPasswordAttempts = Integer.parseInt( |
| parser.getAttributeValue(null, "value")); |
| XmlUtils.skipCurrentTag(parser); |
| } else if ("password-owner".equals(tag)) { |
| mPasswordOwner = Integer.parseInt( |
| parser.getAttributeValue(null, "value")); |
| XmlUtils.skipCurrentTag(parser); |
| } else if ("active-password".equals(tag)) { |
| mActivePasswordQuality = Integer.parseInt( |
| parser.getAttributeValue(null, "quality")); |
| mActivePasswordLength = Integer.parseInt( |
| parser.getAttributeValue(null, "length")); |
| mActivePasswordUpperCase = Integer.parseInt( |
| parser.getAttributeValue(null, "uppercase")); |
| mActivePasswordLowerCase = Integer.parseInt( |
| parser.getAttributeValue(null, "lowercase")); |
| mActivePasswordLetters = Integer.parseInt( |
| parser.getAttributeValue(null, "letters")); |
| mActivePasswordNumeric = Integer.parseInt( |
| parser.getAttributeValue(null, "numeric")); |
| mActivePasswordSymbols = Integer.parseInt( |
| parser.getAttributeValue(null, "symbols")); |
| mActivePasswordNonLetter = Integer.parseInt( |
| parser.getAttributeValue(null, "nonletter")); |
| XmlUtils.skipCurrentTag(parser); |
| } else { |
| Slog.w(TAG, "Unknown tag: " + tag); |
| XmlUtils.skipCurrentTag(parser); |
| } |
| } |
| } catch (NullPointerException e) { |
| Slog.w(TAG, "failed parsing " + file + " " + e); |
| } catch (NumberFormatException e) { |
| Slog.w(TAG, "failed parsing " + file + " " + e); |
| } catch (XmlPullParserException e) { |
| Slog.w(TAG, "failed parsing " + file + " " + e); |
| } catch (FileNotFoundException e) { |
| // Don't be noisy, this is normal if we haven't defined any policies. |
| } catch (IOException e) { |
| Slog.w(TAG, "failed parsing " + file + " " + e); |
| } catch (IndexOutOfBoundsException e) { |
| Slog.w(TAG, "failed parsing " + file + " " + e); |
| } |
| try { |
| if (stream != null) { |
| stream.close(); |
| } |
| } catch (IOException e) { |
| // Ignore |
| } |
| |
| // Validate that what we stored for the password quality matches |
| // sufficiently what is currently set. Note that this is only |
| // a sanity check in case the two get out of sync; this should |
| // never normally happen. |
| LockPatternUtils utils = new LockPatternUtils(mContext); |
| if (utils.getActivePasswordQuality() < mActivePasswordQuality) { |
| Slog.w(TAG, "Active password quality 0x" |
| + Integer.toHexString(mActivePasswordQuality) |
| + " does not match actual quality 0x" |
| + Integer.toHexString(utils.getActivePasswordQuality())); |
| mActivePasswordQuality = DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED; |
| mActivePasswordLength = 0; |
| mActivePasswordUpperCase = 0; |
| mActivePasswordLowerCase = 0; |
| mActivePasswordLetters = 0; |
| mActivePasswordNumeric = 0; |
| mActivePasswordSymbols = 0; |
| mActivePasswordNonLetter = 0; |
| } |
| |
| validatePasswordOwnerLocked(); |
| syncDeviceCapabilitiesLocked(); |
| |
| long timeMs = getMaximumTimeToLock(null); |
| if (timeMs <= 0) { |
| timeMs = Integer.MAX_VALUE; |
| } |
| try { |
| getIPowerManager().setMaximumScreenOffTimeount((int)timeMs); |
| } catch (RemoteException e) { |
| Slog.w(TAG, "Failure talking with power manager", e); |
| } |
| } |
| |
| static void validateQualityConstant(int quality) { |
| switch (quality) { |
| case DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED: |
| case DevicePolicyManager.PASSWORD_QUALITY_SOMETHING: |
| case DevicePolicyManager.PASSWORD_QUALITY_NUMERIC: |
| case DevicePolicyManager.PASSWORD_QUALITY_ALPHABETIC: |
| case DevicePolicyManager.PASSWORD_QUALITY_ALPHANUMERIC: |
| case DevicePolicyManager.PASSWORD_QUALITY_COMPLEX: |
| return; |
| } |
| throw new IllegalArgumentException("Invalid quality constant: 0x" |
| + Integer.toHexString(quality)); |
| } |
| |
| void validatePasswordOwnerLocked() { |
| if (mPasswordOwner >= 0) { |
| boolean haveOwner = false; |
| for (int i=mAdminList.size()-1; i>=0; i--) { |
| if (mAdminList.get(i).getUid() == mPasswordOwner) { |
| haveOwner = true; |
| break; |
| } |
| } |
| if (!haveOwner) { |
| Slog.w(TAG, "Previous password owner " + mPasswordOwner |
| + " no longer active; disabling"); |
| mPasswordOwner = -1; |
| } |
| } |
| } |
| |
| /** |
| * Pushes down policy information to the system for any policies related to general device |
| * capabilities that need to be enforced by lower level services (e.g. Camera services). |
| */ |
| void syncDeviceCapabilitiesLocked() { |
| // Ensure the status of the camera is synced down to the system. Interested native services |
| // should monitor this value and act accordingly. |
| boolean systemState = SystemProperties.getBoolean(SYSTEM_PROP_DISABLE_CAMERA, false); |
| boolean cameraDisabled = getCameraDisabled(null); |
| if (cameraDisabled != systemState) { |
| long token = Binder.clearCallingIdentity(); |
| try { |
| String value = cameraDisabled ? "1" : "0"; |
| Slog.v(TAG, "Change in camera state [" |
| + SYSTEM_PROP_DISABLE_CAMERA + "] = " + value); |
| SystemProperties.set(SYSTEM_PROP_DISABLE_CAMERA, value); |
| } finally { |
| Binder.restoreCallingIdentity(token); |
| } |
| } |
| } |
| |
| public void systemReady() { |
| synchronized (this) { |
| loadSettingsLocked(); |
| } |
| } |
| |
| private void handlePasswordExpirationNotification() { |
| synchronized (this) { |
| final long now = System.currentTimeMillis(); |
| final int N = mAdminList.size(); |
| if (N <= 0) { |
| return; |
| } |
| for (int i=0; i < N; i++) { |
| ActiveAdmin admin = mAdminList.get(i); |
| if (admin.info.usesPolicy(DeviceAdminInfo.USES_POLICY_EXPIRE_PASSWORD) |
| && admin.passwordExpirationTimeout > 0L |
| && admin.passwordExpirationDate > 0L |
| && now >= admin.passwordExpirationDate - EXPIRATION_GRACE_PERIOD_MS) { |
| sendAdminCommandLocked(admin, DeviceAdminReceiver.ACTION_PASSWORD_EXPIRING); |
| } |
| } |
| setExpirationAlarmCheckLocked(mContext); |
| } |
| } |
| |
| /** |
| * @param adminReceiver The admin to add |
| * @param refreshing true = update an active admin, no error |
| */ |
| public void setActiveAdmin(ComponentName adminReceiver, boolean refreshing) { |
| mContext.enforceCallingOrSelfPermission( |
| android.Manifest.permission.BIND_DEVICE_ADMIN, null); |
| |
| DeviceAdminInfo info = findAdmin(adminReceiver); |
| if (info == null) { |
| throw new IllegalArgumentException("Bad admin: " + adminReceiver); |
| } |
| synchronized (this) { |
| long ident = Binder.clearCallingIdentity(); |
| try { |
| if (!refreshing && getActiveAdminUncheckedLocked(adminReceiver) != null) { |
| throw new IllegalArgumentException("Admin is already added"); |
| } |
| ActiveAdmin newAdmin = new ActiveAdmin(info); |
| mAdminMap.put(adminReceiver, newAdmin); |
| int replaceIndex = -1; |
| if (refreshing) { |
| final int N = mAdminList.size(); |
| for (int i=0; i < N; i++) { |
| ActiveAdmin oldAdmin = mAdminList.get(i); |
| if (oldAdmin.info.getComponent().equals(adminReceiver)) { |
| replaceIndex = i; |
| break; |
| } |
| } |
| } |
| if (replaceIndex == -1) { |
| mAdminList.add(newAdmin); |
| } else { |
| mAdminList.set(replaceIndex, newAdmin); |
| } |
| saveSettingsLocked(); |
| sendAdminCommandLocked(newAdmin, DeviceAdminReceiver.ACTION_DEVICE_ADMIN_ENABLED); |
| } finally { |
| Binder.restoreCallingIdentity(ident); |
| } |
| } |
| } |
| |
| public boolean isAdminActive(ComponentName adminReceiver) { |
| synchronized (this) { |
| return getActiveAdminUncheckedLocked(adminReceiver) != null; |
| } |
| } |
| |
| public boolean hasGrantedPolicy(ComponentName adminReceiver, int policyId) { |
| synchronized (this) { |
| ActiveAdmin administrator = getActiveAdminUncheckedLocked(adminReceiver); |
| if (administrator == null) { |
| throw new SecurityException("No active admin " + adminReceiver); |
| } |
| return administrator.info.usesPolicy(policyId); |
| } |
| } |
| |
| public List<ComponentName> getActiveAdmins() { |
| synchronized (this) { |
| final int N = mAdminList.size(); |
| if (N <= 0) { |
| return null; |
| } |
| ArrayList<ComponentName> res = new ArrayList<ComponentName>(N); |
| for (int i=0; i<N; i++) { |
| res.add(mAdminList.get(i).info.getComponent()); |
| } |
| return res; |
| } |
| } |
| |
| public boolean packageHasActiveAdmins(String packageName) { |
| synchronized (this) { |
| final int N = mAdminList.size(); |
| for (int i=0; i<N; i++) { |
| if (mAdminList.get(i).info.getPackageName().equals(packageName)) { |
| return true; |
| } |
| } |
| return false; |
| } |
| } |
| |
| public void removeActiveAdmin(ComponentName adminReceiver) { |
| synchronized (this) { |
| ActiveAdmin admin = getActiveAdminUncheckedLocked(adminReceiver); |
| if (admin == null) { |
| return; |
| } |
| if (admin.getUid() != Binder.getCallingUid()) { |
| mContext.enforceCallingOrSelfPermission( |
| android.Manifest.permission.BIND_DEVICE_ADMIN, null); |
| } |
| long ident = Binder.clearCallingIdentity(); |
| try { |
| removeActiveAdminLocked(adminReceiver); |
| } finally { |
| Binder.restoreCallingIdentity(ident); |
| } |
| } |
| } |
| |
| public void setPasswordQuality(ComponentName who, int quality) { |
| validateQualityConstant(quality); |
| |
| synchronized (this) { |
| if (who == null) { |
| throw new NullPointerException("ComponentName is null"); |
| } |
| ActiveAdmin ap = getActiveAdminForCallerLocked(who, |
| DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD); |
| if (ap.passwordQuality != quality) { |
| ap.passwordQuality = quality; |
| saveSettingsLocked(); |
| } |
| } |
| } |
| |
| public int getPasswordQuality(ComponentName who) { |
| synchronized (this) { |
| int mode = DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED; |
| |
| if (who != null) { |
| ActiveAdmin admin = getActiveAdminUncheckedLocked(who); |
| return admin != null ? admin.passwordQuality : mode; |
| } |
| |
| final int N = mAdminList.size(); |
| for (int i=0; i<N; i++) { |
| ActiveAdmin admin = mAdminList.get(i); |
| if (mode < admin.passwordQuality) { |
| mode = admin.passwordQuality; |
| } |
| } |
| return mode; |
| } |
| } |
| |
| public void setPasswordMinimumLength(ComponentName who, int length) { |
| synchronized (this) { |
| if (who == null) { |
| throw new NullPointerException("ComponentName is null"); |
| } |
| ActiveAdmin ap = getActiveAdminForCallerLocked(who, |
| DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD); |
| if (ap.minimumPasswordLength != length) { |
| ap.minimumPasswordLength = length; |
| saveSettingsLocked(); |
| } |
| } |
| } |
| |
| public int getPasswordMinimumLength(ComponentName who) { |
| synchronized (this) { |
| int length = 0; |
| |
| if (who != null) { |
| ActiveAdmin admin = getActiveAdminUncheckedLocked(who); |
| return admin != null ? admin.minimumPasswordLength : length; |
| } |
| |
| final int N = mAdminList.size(); |
| for (int i=0; i<N; i++) { |
| ActiveAdmin admin = mAdminList.get(i); |
| if (length < admin.minimumPasswordLength) { |
| length = admin.minimumPasswordLength; |
| } |
| } |
| return length; |
| } |
| } |
| |
| public void setPasswordHistoryLength(ComponentName who, int length) { |
| synchronized (this) { |
| if (who == null) { |
| throw new NullPointerException("ComponentName is null"); |
| } |
| ActiveAdmin ap = getActiveAdminForCallerLocked(who, |
| DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD); |
| if (ap.passwordHistoryLength != length) { |
| ap.passwordHistoryLength = length; |
| saveSettingsLocked(); |
| } |
| } |
| } |
| |
| public int getPasswordHistoryLength(ComponentName who) { |
| synchronized (this) { |
| int length = 0; |
| |
| if (who != null) { |
| ActiveAdmin admin = getActiveAdminUncheckedLocked(who); |
| return admin != null ? admin.passwordHistoryLength : length; |
| } |
| |
| final int N = mAdminList.size(); |
| for (int i = 0; i < N; i++) { |
| ActiveAdmin admin = mAdminList.get(i); |
| if (length < admin.passwordHistoryLength) { |
| length = admin.passwordHistoryLength; |
| } |
| } |
| return length; |
| } |
| } |
| |
| public void setPasswordExpirationTimeout(ComponentName who, long timeout) { |
| synchronized (this) { |
| if (who == null) { |
| throw new NullPointerException("ComponentName is null"); |
| } |
| if (timeout < 0) { |
| throw new IllegalArgumentException("Timeout must be >= 0 ms"); |
| } |
| ActiveAdmin ap = getActiveAdminForCallerLocked(who, |
| DeviceAdminInfo.USES_POLICY_EXPIRE_PASSWORD); |
| // Calling this API automatically bumps the expiration date |
| final long expiration = timeout > 0L ? (timeout + System.currentTimeMillis()) : 0L; |
| ap.passwordExpirationDate = expiration; |
| ap.passwordExpirationTimeout = timeout; |
| if (timeout > 0L) { |
| Slog.w(TAG, "setPasswordExpiration(): password will expire on " |
| + DateFormat.getDateTimeInstance(DateFormat.DEFAULT, DateFormat.DEFAULT) |
| .format(new Date(expiration))); |
| } |
| saveSettingsLocked(); |
| setExpirationAlarmCheckLocked(mContext); // in case this is the first one |
| } |
| } |
| |
| /** |
| * Return a single admin's expiration cycle time, or the min of all cycle times. |
| * Returns 0 if not configured. |
| */ |
| public long getPasswordExpirationTimeout(ComponentName who) { |
| synchronized (this) { |
| if (who != null) { |
| ActiveAdmin admin = getActiveAdminUncheckedLocked(who); |
| return admin != null ? admin.passwordExpirationTimeout : 0L; |
| } |
| |
| long timeout = 0L; |
| final int N = mAdminList.size(); |
| for (int i = 0; i < N; i++) { |
| ActiveAdmin admin = mAdminList.get(i); |
| if (timeout == 0L || (admin.passwordExpirationTimeout != 0L |
| && timeout > admin.passwordExpirationTimeout)) { |
| timeout = admin.passwordExpirationTimeout; |
| } |
| } |
| return timeout; |
| } |
| } |
| |
| /** |
| * Return a single admin's expiration date/time, or the min (soonest) for all admins. |
| * Returns 0 if not configured. |
| */ |
| private long getPasswordExpirationLocked(ComponentName who) { |
| if (who != null) { |
| ActiveAdmin admin = getActiveAdminUncheckedLocked(who); |
| return admin != null ? admin.passwordExpirationDate : 0L; |
| } |
| |
| long timeout = 0L; |
| final int N = mAdminList.size(); |
| for (int i = 0; i < N; i++) { |
| ActiveAdmin admin = mAdminList.get(i); |
| if (timeout == 0L || (admin.passwordExpirationDate != 0 |
| && timeout > admin.passwordExpirationDate)) { |
| timeout = admin.passwordExpirationDate; |
| } |
| } |
| return timeout; |
| } |
| |
| public long getPasswordExpiration(ComponentName who) { |
| synchronized (this) { |
| return getPasswordExpirationLocked(who); |
| } |
| } |
| |
| public void setPasswordMinimumUpperCase(ComponentName who, int length) { |
| synchronized (this) { |
| if (who == null) { |
| throw new NullPointerException("ComponentName is null"); |
| } |
| ActiveAdmin ap = getActiveAdminForCallerLocked(who, |
| DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD); |
| if (ap.minimumPasswordUpperCase != length) { |
| ap.minimumPasswordUpperCase = length; |
| saveSettingsLocked(); |
| } |
| } |
| } |
| |
| public int getPasswordMinimumUpperCase(ComponentName who) { |
| synchronized (this) { |
| int length = 0; |
| |
| if (who != null) { |
| ActiveAdmin admin = getActiveAdminUncheckedLocked(who); |
| return admin != null ? admin.minimumPasswordUpperCase : length; |
| } |
| |
| final int N = mAdminList.size(); |
| for (int i=0; i<N; i++) { |
| ActiveAdmin admin = mAdminList.get(i); |
| if (length < admin.minimumPasswordUpperCase) { |
| length = admin.minimumPasswordUpperCase; |
| } |
| } |
| return length; |
| } |
| } |
| |
| public void setPasswordMinimumLowerCase(ComponentName who, int length) { |
| synchronized (this) { |
| if (who == null) { |
| throw new NullPointerException("ComponentName is null"); |
| } |
| ActiveAdmin ap = getActiveAdminForCallerLocked(who, |
| DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD); |
| if (ap.minimumPasswordLowerCase != length) { |
| ap.minimumPasswordLowerCase = length; |
| saveSettingsLocked(); |
| } |
| } |
| } |
| |
| public int getPasswordMinimumLowerCase(ComponentName who) { |
| synchronized (this) { |
| int length = 0; |
| |
| if (who != null) { |
| ActiveAdmin admin = getActiveAdminUncheckedLocked(who); |
| return admin != null ? admin.minimumPasswordLowerCase : length; |
| } |
| |
| final int N = mAdminList.size(); |
| for (int i=0; i<N; i++) { |
| ActiveAdmin admin = mAdminList.get(i); |
| if (length < admin.minimumPasswordLowerCase) { |
| length = admin.minimumPasswordLowerCase; |
| } |
| } |
| return length; |
| } |
| } |
| |
| public void setPasswordMinimumLetters(ComponentName who, int length) { |
| synchronized (this) { |
| if (who == null) { |
| throw new NullPointerException("ComponentName is null"); |
| } |
| ActiveAdmin ap = getActiveAdminForCallerLocked(who, |
| DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD); |
| if (ap.minimumPasswordLetters != length) { |
| ap.minimumPasswordLetters = length; |
| saveSettingsLocked(); |
| } |
| } |
| } |
| |
| public int getPasswordMinimumLetters(ComponentName who) { |
| synchronized (this) { |
| int length = 0; |
| |
| if (who != null) { |
| ActiveAdmin admin = getActiveAdminUncheckedLocked(who); |
| return admin != null ? admin.minimumPasswordLetters : length; |
| } |
| |
| final int N = mAdminList.size(); |
| for (int i=0; i<N; i++) { |
| ActiveAdmin admin = mAdminList.get(i); |
| if (length < admin.minimumPasswordLetters) { |
| length = admin.minimumPasswordLetters; |
| } |
| } |
| return length; |
| } |
| } |
| |
| public void setPasswordMinimumNumeric(ComponentName who, int length) { |
| synchronized (this) { |
| if (who == null) { |
| throw new NullPointerException("ComponentName is null"); |
| } |
| ActiveAdmin ap = getActiveAdminForCallerLocked(who, |
| DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD); |
| if (ap.minimumPasswordNumeric != length) { |
| ap.minimumPasswordNumeric = length; |
| saveSettingsLocked(); |
| } |
| } |
| } |
| |
| public int getPasswordMinimumNumeric(ComponentName who) { |
| synchronized (this) { |
| int length = 0; |
| |
| if (who != null) { |
| ActiveAdmin admin = getActiveAdminUncheckedLocked(who); |
| return admin != null ? admin.minimumPasswordNumeric : length; |
| } |
| |
| final int N = mAdminList.size(); |
| for (int i = 0; i < N; i++) { |
| ActiveAdmin admin = mAdminList.get(i); |
| if (length < admin.minimumPasswordNumeric) { |
| length = admin.minimumPasswordNumeric; |
| } |
| } |
| return length; |
| } |
| } |
| |
| public void setPasswordMinimumSymbols(ComponentName who, int length) { |
| synchronized (this) { |
| if (who == null) { |
| throw new NullPointerException("ComponentName is null"); |
| } |
| ActiveAdmin ap = getActiveAdminForCallerLocked(who, |
| DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD); |
| if (ap.minimumPasswordSymbols != length) { |
| ap.minimumPasswordSymbols = length; |
| saveSettingsLocked(); |
| } |
| } |
| } |
| |
| public int getPasswordMinimumSymbols(ComponentName who) { |
| synchronized (this) { |
| int length = 0; |
| |
| if (who != null) { |
| ActiveAdmin admin = getActiveAdminUncheckedLocked(who); |
| return admin != null ? admin.minimumPasswordSymbols : length; |
| } |
| |
| final int N = mAdminList.size(); |
| for (int i=0; i<N; i++) { |
| ActiveAdmin admin = mAdminList.get(i); |
| if (length < admin.minimumPasswordSymbols) { |
| length = admin.minimumPasswordSymbols; |
| } |
| } |
| return length; |
| } |
| } |
| |
| public void setPasswordMinimumNonLetter(ComponentName who, int length) { |
| synchronized (this) { |
| if (who == null) { |
| throw new NullPointerException("ComponentName is null"); |
| } |
| ActiveAdmin ap = getActiveAdminForCallerLocked(who, |
| DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD); |
| if (ap.minimumPasswordNonLetter != length) { |
| ap.minimumPasswordNonLetter = length; |
| saveSettingsLocked(); |
| } |
| } |
| } |
| |
| public int getPasswordMinimumNonLetter(ComponentName who) { |
| synchronized (this) { |
| int length = 0; |
| |
| if (who != null) { |
| ActiveAdmin admin = getActiveAdminUncheckedLocked(who); |
| return admin != null ? admin.minimumPasswordNonLetter : length; |
| } |
| |
| final int N = mAdminList.size(); |
| for (int i=0; i<N; i++) { |
| ActiveAdmin admin = mAdminList.get(i); |
| if (length < admin.minimumPasswordNonLetter) { |
| length = admin.minimumPasswordNonLetter; |
| } |
| } |
| return length; |
| } |
| } |
| |
| public boolean isActivePasswordSufficient() { |
| synchronized (this) { |
| // This API can only be called by an active device admin, |
| // so try to retrieve it to check that the caller is one. |
| getActiveAdminForCallerLocked(null, |
| DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD); |
| if (mActivePasswordQuality < getPasswordQuality(null) |
| || mActivePasswordLength < getPasswordMinimumLength(null)) { |
| return false; |
| } |
| if(mActivePasswordQuality != DevicePolicyManager.PASSWORD_QUALITY_COMPLEX) { |
| return true; |
| } |
| return mActivePasswordUpperCase >= getPasswordMinimumUpperCase(null) |
| && mActivePasswordLowerCase >= getPasswordMinimumLowerCase(null) |
| && mActivePasswordLetters >= getPasswordMinimumLetters(null) |
| && mActivePasswordNumeric >= getPasswordMinimumNumeric(null) |
| && mActivePasswordSymbols >= getPasswordMinimumSymbols(null) |
| && mActivePasswordNonLetter >= getPasswordMinimumNonLetter(null); |
| } |
| } |
| |
| public int getCurrentFailedPasswordAttempts() { |
| synchronized (this) { |
| // This API can only be called by an active device admin, |
| // so try to retrieve it to check that the caller is one. |
| getActiveAdminForCallerLocked(null, |
| DeviceAdminInfo.USES_POLICY_WATCH_LOGIN); |
| return mFailedPasswordAttempts; |
| } |
| } |
| |
| public void setMaximumFailedPasswordsForWipe(ComponentName who, int num) { |
| synchronized (this) { |
| // This API can only be called by an active device admin, |
| // so try to retrieve it to check that the caller is one. |
| getActiveAdminForCallerLocked(who, |
| DeviceAdminInfo.USES_POLICY_WIPE_DATA); |
| ActiveAdmin ap = getActiveAdminForCallerLocked(who, |
| DeviceAdminInfo.USES_POLICY_WATCH_LOGIN); |
| if (ap.maximumFailedPasswordsForWipe != num) { |
| ap.maximumFailedPasswordsForWipe = num; |
| saveSettingsLocked(); |
| } |
| } |
| } |
| |
| public int getMaximumFailedPasswordsForWipe(ComponentName who) { |
| synchronized (this) { |
| int count = 0; |
| |
| if (who != null) { |
| ActiveAdmin admin = getActiveAdminUncheckedLocked(who); |
| return admin != null ? admin.maximumFailedPasswordsForWipe : count; |
| } |
| |
| final int N = mAdminList.size(); |
| for (int i=0; i<N; i++) { |
| ActiveAdmin admin = mAdminList.get(i); |
| if (count == 0) { |
| count = admin.maximumFailedPasswordsForWipe; |
| } else if (admin.maximumFailedPasswordsForWipe != 0 |
| && count > admin.maximumFailedPasswordsForWipe) { |
| count = admin.maximumFailedPasswordsForWipe; |
| } |
| } |
| return count; |
| } |
| } |
| |
| public boolean resetPassword(String password, int flags) { |
| int quality; |
| synchronized (this) { |
| // This API can only be called by an active device admin, |
| // so try to retrieve it to check that the caller is one. |
| getActiveAdminForCallerLocked(null, |
| DeviceAdminInfo.USES_POLICY_RESET_PASSWORD); |
| quality = getPasswordQuality(null); |
| if (quality != DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED) { |
| int realQuality = LockPatternUtils.computePasswordQuality(password); |
| if (realQuality < quality |
| && quality != DevicePolicyManager.PASSWORD_QUALITY_COMPLEX) { |
| Slog.w(TAG, "resetPassword: password quality 0x" |
| + Integer.toHexString(quality) |
| + " does not meet required quality 0x" |
| + Integer.toHexString(quality)); |
| return false; |
| } |
| quality = Math.max(realQuality, quality); |
| } |
| int length = getPasswordMinimumLength(null); |
| if (password.length() < length) { |
| Slog.w(TAG, "resetPassword: password length " + password.length() |
| + " does not meet required length " + length); |
| return false; |
| } |
| if (quality == DevicePolicyManager.PASSWORD_QUALITY_COMPLEX) { |
| int letters = 0; |
| int uppercase = 0; |
| int lowercase = 0; |
| int numbers = 0; |
| int symbols = 0; |
| int nonletter = 0; |
| for (int i = 0; i < password.length(); i++) { |
| char c = password.charAt(i); |
| if (c >= 'A' && c <= 'Z') { |
| letters++; |
| uppercase++; |
| } else if (c >= 'a' && c <= 'z') { |
| letters++; |
| lowercase++; |
| } else if (c >= '0' && c <= '9') { |
| numbers++; |
| nonletter++; |
| } else { |
| symbols++; |
| nonletter++; |
| } |
| } |
| int neededLetters = getPasswordMinimumLetters(null); |
| if(letters < neededLetters) { |
| Slog.w(TAG, "resetPassword: number of letters " + letters |
| + " does not meet required number of letters " + neededLetters); |
| return false; |
| } |
| int neededNumbers = getPasswordMinimumNumeric(null); |
| if (numbers < neededNumbers) { |
| Slog |
| .w(TAG, "resetPassword: number of numerical digits " + numbers |
| + " does not meet required number of numerical digits " |
| + neededNumbers); |
| return false; |
| } |
| int neededLowerCase = getPasswordMinimumLowerCase(null); |
| if (lowercase < neededLowerCase) { |
| Slog.w(TAG, "resetPassword: number of lowercase letters " + lowercase |
| + " does not meet required number of lowercase letters " |
| + neededLowerCase); |
| return false; |
| } |
| int neededUpperCase = getPasswordMinimumUpperCase(null); |
| if (uppercase < neededUpperCase) { |
| Slog.w(TAG, "resetPassword: number of uppercase letters " + uppercase |
| + " does not meet required number of uppercase letters " |
| + neededUpperCase); |
| return false; |
| } |
| int neededSymbols = getPasswordMinimumSymbols(null); |
| if (symbols < neededSymbols) { |
| Slog.w(TAG, "resetPassword: number of special symbols " + symbols |
| + " does not meet required number of special symbols " + neededSymbols); |
| return false; |
| } |
| int neededNonLetter = getPasswordMinimumNonLetter(null); |
| if (nonletter < neededNonLetter) { |
| Slog.w(TAG, "resetPassword: number of non-letter characters " + nonletter |
| + " does not meet required number of non-letter characters " |
| + neededNonLetter); |
| return false; |
| } |
| } |
| |
| LockPatternUtils utils = new LockPatternUtils(mContext); |
| if(utils.checkPasswordHistory(password)) { |
| Slog.w(TAG, "resetPassword: password is the same as one of the last " |
| + getPasswordHistoryLength(null) + " passwords"); |
| return false; |
| } |
| } |
| |
| int callingUid = Binder.getCallingUid(); |
| if (mPasswordOwner >= 0 && mPasswordOwner != callingUid) { |
| Slog.w(TAG, "resetPassword: already set by another uid and not entered by user"); |
| return false; |
| } |
| |
| // Don't do this with the lock held, because it is going to call |
| // back in to the service. |
| long ident = Binder.clearCallingIdentity(); |
| try { |
| LockPatternUtils utils = new LockPatternUtils(mContext); |
| utils.saveLockPassword(password, quality); |
| synchronized (this) { |
| int newOwner = (flags&DevicePolicyManager.RESET_PASSWORD_REQUIRE_ENTRY) |
| != 0 ? callingUid : -1; |
| if (mPasswordOwner != newOwner) { |
| mPasswordOwner = newOwner; |
| saveSettingsLocked(); |
| } |
| } |
| } finally { |
| Binder.restoreCallingIdentity(ident); |
| } |
| |
| return true; |
| } |
| |
| public void setMaximumTimeToLock(ComponentName who, long timeMs) { |
| synchronized (this) { |
| if (who == null) { |
| throw new NullPointerException("ComponentName is null"); |
| } |
| ActiveAdmin ap = getActiveAdminForCallerLocked(who, |
| DeviceAdminInfo.USES_POLICY_FORCE_LOCK); |
| if (ap.maximumTimeToUnlock != timeMs) { |
| ap.maximumTimeToUnlock = timeMs; |
| |
| long ident = Binder.clearCallingIdentity(); |
| try { |
| saveSettingsLocked(); |
| |
| timeMs = getMaximumTimeToLock(null); |
| if (timeMs <= 0) { |
| timeMs = Integer.MAX_VALUE; |
| } |
| |
| try { |
| getIPowerManager().setMaximumScreenOffTimeount((int)timeMs); |
| } catch (RemoteException e) { |
| Slog.w(TAG, "Failure talking with power manager", e); |
| } |
| } finally { |
| Binder.restoreCallingIdentity(ident); |
| } |
| } |
| } |
| } |
| |
| public long getMaximumTimeToLock(ComponentName who) { |
| synchronized (this) { |
| long time = 0; |
| |
| if (who != null) { |
| ActiveAdmin admin = getActiveAdminUncheckedLocked(who); |
| return admin != null ? admin.maximumTimeToUnlock : time; |
| } |
| |
| final int N = mAdminList.size(); |
| for (int i=0; i<N; i++) { |
| ActiveAdmin admin = mAdminList.get(i); |
| if (time == 0) { |
| time = admin.maximumTimeToUnlock; |
| } else if (admin.maximumTimeToUnlock != 0 |
| && time > admin.maximumTimeToUnlock) { |
| time = admin.maximumTimeToUnlock; |
| } |
| } |
| return time; |
| } |
| } |
| |
| public void lockNow() { |
| synchronized (this) { |
| // This API can only be called by an active device admin, |
| // so try to retrieve it to check that the caller is one. |
| getActiveAdminForCallerLocked(null, |
| DeviceAdminInfo.USES_POLICY_FORCE_LOCK); |
| long ident = Binder.clearCallingIdentity(); |
| try { |
| mIPowerManager.goToSleepWithReason(SystemClock.uptimeMillis(), |
| WindowManagerPolicy.OFF_BECAUSE_OF_ADMIN); |
| } catch (RemoteException e) { |
| } finally { |
| Binder.restoreCallingIdentity(ident); |
| } |
| } |
| } |
| |
| void wipeDataLocked(int flags) { |
| if ((flags&DevicePolicyManager.WIPE_EXTERNAL_STORAGE) != 0) { |
| Intent intent = new Intent(ExternalStorageFormatter.FORMAT_AND_FACTORY_RESET); |
| intent.setComponent(ExternalStorageFormatter.COMPONENT_NAME); |
| mWakeLock.acquire(10000); |
| mContext.startService(intent); |
| } else { |
| try { |
| RecoverySystem.rebootWipeUserData(mContext); |
| } catch (IOException e) { |
| Slog.w(TAG, "Failed requesting data wipe", e); |
| } |
| } |
| } |
| |
| public void wipeData(int flags) { |
| synchronized (this) { |
| // This API can only be called by an active device admin, |
| // so try to retrieve it to check that the caller is one. |
| getActiveAdminForCallerLocked(null, |
| DeviceAdminInfo.USES_POLICY_WIPE_DATA); |
| long ident = Binder.clearCallingIdentity(); |
| try { |
| wipeDataLocked(flags); |
| } finally { |
| Binder.restoreCallingIdentity(ident); |
| } |
| } |
| } |
| |
| public void getRemoveWarning(ComponentName comp, final RemoteCallback result) { |
| mContext.enforceCallingOrSelfPermission( |
| android.Manifest.permission.BIND_DEVICE_ADMIN, null); |
| |
| synchronized (this) { |
| ActiveAdmin admin = getActiveAdminUncheckedLocked(comp); |
| if (admin == null) { |
| try { |
| result.sendResult(null); |
| } catch (RemoteException e) { |
| } |
| return; |
| } |
| Intent intent = new Intent(DeviceAdminReceiver.ACTION_DEVICE_ADMIN_DISABLE_REQUESTED); |
| intent.setComponent(admin.info.getComponent()); |
| mContext.sendOrderedBroadcast(intent, null, new BroadcastReceiver() { |
| @Override |
| public void onReceive(Context context, Intent intent) { |
| try { |
| result.sendResult(getResultExtras(false)); |
| } catch (RemoteException e) { |
| } |
| } |
| }, null, Activity.RESULT_OK, null, null); |
| } |
| } |
| |
| public void setActivePasswordState(int quality, int length, int letters, int uppercase, |
| int lowercase, int numbers, int symbols, int nonletter) { |
| mContext.enforceCallingOrSelfPermission( |
| android.Manifest.permission.BIND_DEVICE_ADMIN, null); |
| |
| validateQualityConstant(quality); |
| |
| synchronized (this) { |
| if (mActivePasswordQuality != quality || mActivePasswordLength != length |
| || mFailedPasswordAttempts != 0 || mActivePasswordLetters != letters |
| || mActivePasswordUpperCase != uppercase |
| || mActivePasswordLowerCase != lowercase || mActivePasswordNumeric != numbers |
| || mActivePasswordSymbols != symbols || mActivePasswordNonLetter != nonletter) { |
| long ident = Binder.clearCallingIdentity(); |
| try { |
| mActivePasswordQuality = quality; |
| mActivePasswordLength = length; |
| mActivePasswordLetters = letters; |
| mActivePasswordLowerCase = lowercase; |
| mActivePasswordUpperCase = uppercase; |
| mActivePasswordNumeric = numbers; |
| mActivePasswordSymbols = symbols; |
| mActivePasswordNonLetter = nonletter; |
| mFailedPasswordAttempts = 0; |
| saveSettingsLocked(); |
| updatePasswordExpirationsLocked(); |
| setExpirationAlarmCheckLocked(mContext); |
| sendAdminCommandLocked(DeviceAdminReceiver.ACTION_PASSWORD_CHANGED, |
| DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD); |
| } finally { |
| Binder.restoreCallingIdentity(ident); |
| } |
| } |
| } |
| } |
| |
| /** |
| * Called any time the device password is updated. Resets all password expiration clocks. |
| */ |
| private void updatePasswordExpirationsLocked() { |
| final int N = mAdminList.size(); |
| if (N > 0) { |
| for (int i=0; i<N; i++) { |
| ActiveAdmin admin = mAdminList.get(i); |
| if (admin.info.usesPolicy(DeviceAdminInfo.USES_POLICY_EXPIRE_PASSWORD)) { |
| long timeout = admin.passwordExpirationTimeout; |
| long expiration = timeout > 0L ? (timeout + System.currentTimeMillis()) : 0L; |
| admin.passwordExpirationDate = expiration; |
| } |
| } |
| saveSettingsLocked(); |
| } |
| } |
| |
| public void reportFailedPasswordAttempt() { |
| mContext.enforceCallingOrSelfPermission( |
| android.Manifest.permission.BIND_DEVICE_ADMIN, null); |
| |
| synchronized (this) { |
| long ident = Binder.clearCallingIdentity(); |
| try { |
| mFailedPasswordAttempts++; |
| saveSettingsLocked(); |
| int max = getMaximumFailedPasswordsForWipe(null); |
| if (max > 0 && mFailedPasswordAttempts >= max) { |
| wipeDataLocked(0); |
| } |
| sendAdminCommandLocked(DeviceAdminReceiver.ACTION_PASSWORD_FAILED, |
| DeviceAdminInfo.USES_POLICY_WATCH_LOGIN); |
| } finally { |
| Binder.restoreCallingIdentity(ident); |
| } |
| } |
| } |
| |
| public void reportSuccessfulPasswordAttempt() { |
| mContext.enforceCallingOrSelfPermission( |
| android.Manifest.permission.BIND_DEVICE_ADMIN, null); |
| |
| synchronized (this) { |
| if (mFailedPasswordAttempts != 0 || mPasswordOwner >= 0) { |
| long ident = Binder.clearCallingIdentity(); |
| try { |
| mFailedPasswordAttempts = 0; |
| mPasswordOwner = -1; |
| saveSettingsLocked(); |
| sendAdminCommandLocked(DeviceAdminReceiver.ACTION_PASSWORD_SUCCEEDED, |
| DeviceAdminInfo.USES_POLICY_WATCH_LOGIN); |
| } finally { |
| Binder.restoreCallingIdentity(ident); |
| } |
| } |
| } |
| } |
| |
| public ComponentName setGlobalProxy(ComponentName who, String proxySpec, |
| String exclusionList) { |
| synchronized(this) { |
| if (who == null) { |
| throw new NullPointerException("ComponentName is null"); |
| } |
| |
| ActiveAdmin admin = getActiveAdminForCallerLocked(who, |
| DeviceAdminInfo.USES_POLICY_SETS_GLOBAL_PROXY); |
| |
| // Scan through active admins and find if anyone has already |
| // set the global proxy. |
| Set<ComponentName> compSet = mAdminMap.keySet(); |
| for (ComponentName component : compSet) { |
| ActiveAdmin ap = mAdminMap.get(component); |
| if ((ap.specifiesGlobalProxy) && (!component.equals(who))) { |
| // Another admin already sets the global proxy |
| // Return it to the caller. |
| return component; |
| } |
| } |
| if (proxySpec == null) { |
| admin.specifiesGlobalProxy = false; |
| admin.globalProxySpec = null; |
| admin.globalProxyExclusionList = null; |
| } else { |
| |
| admin.specifiesGlobalProxy = true; |
| admin.globalProxySpec = proxySpec; |
| admin.globalProxyExclusionList = exclusionList; |
| } |
| |
| // Reset the global proxy accordingly |
| // Do this using system permissions, as apps cannot write to secure settings |
| long origId = Binder.clearCallingIdentity(); |
| resetGlobalProxy(); |
| Binder.restoreCallingIdentity(origId); |
| return null; |
| } |
| } |
| |
| public ComponentName getGlobalProxyAdmin() { |
| synchronized(this) { |
| // Scan through active admins and find if anyone has already |
| // set the global proxy. |
| final int N = mAdminList.size(); |
| for (int i = 0; i < N; i++) { |
| ActiveAdmin ap = mAdminList.get(i); |
| if (ap.specifiesGlobalProxy) { |
| // Device admin sets the global proxy |
| // Return it to the caller. |
| return ap.info.getComponent(); |
| } |
| } |
| } |
| // No device admin sets the global proxy. |
| return null; |
| } |
| |
| private void resetGlobalProxy() { |
| final int N = mAdminList.size(); |
| for (int i = 0; i < N; i++) { |
| ActiveAdmin ap = mAdminList.get(i); |
| if (ap.specifiesGlobalProxy) { |
| saveGlobalProxy(ap.globalProxySpec, ap.globalProxyExclusionList); |
| return; |
| } |
| } |
| // No device admins defining global proxies - reset global proxy settings to none |
| saveGlobalProxy(null, null); |
| } |
| |
| private void saveGlobalProxy(String proxySpec, String exclusionList) { |
| if (exclusionList == null) { |
| exclusionList = ""; |
| } |
| if (proxySpec == null) { |
| proxySpec = ""; |
| } |
| // Remove white spaces |
| proxySpec = proxySpec.trim(); |
| String data[] = proxySpec.split(":"); |
| int proxyPort = 8080; |
| if (data.length > 1) { |
| try { |
| proxyPort = Integer.parseInt(data[1]); |
| } catch (NumberFormatException e) {} |
| } |
| exclusionList = exclusionList.trim(); |
| ContentResolver res = mContext.getContentResolver(); |
| Settings.Secure.putString(res, Settings.Secure.GLOBAL_HTTP_PROXY_HOST, data[0]); |
| Settings.Secure.putInt(res, Settings.Secure.GLOBAL_HTTP_PROXY_PORT, proxyPort); |
| Settings.Secure.putString(res, Settings.Secure.GLOBAL_HTTP_PROXY_EXCLUSION_LIST, |
| exclusionList); |
| } |
| |
| /** |
| * Set the storage encryption request for a single admin. Returns the new total request |
| * status (for all admins). |
| */ |
| public int setStorageEncryption(ComponentName who, boolean encrypt) { |
| synchronized (this) { |
| // Check for permissions |
| if (who == null) { |
| throw new NullPointerException("ComponentName is null"); |
| } |
| ActiveAdmin ap = getActiveAdminForCallerLocked(who, |
| DeviceAdminInfo.USES_ENCRYPTED_STORAGE); |
| |
| // Quick exit: If the filesystem does not support encryption, we can exit early. |
| if (!isEncryptionSupported()) { |
| return DevicePolicyManager.ENCRYPTION_STATUS_UNSUPPORTED; |
| } |
| |
| // (1) Record the value for the admin so it's sticky |
| if (ap.encryptionRequested != encrypt) { |
| ap.encryptionRequested = encrypt; |
| saveSettingsLocked(); |
| } |
| |
| // (2) Compute "max" for all admins |
| boolean newRequested = false; |
| final int N = mAdminList.size(); |
| for (int i = 0; i < N; i++) { |
| newRequested |= mAdminList.get(i).encryptionRequested; |
| } |
| |
| // Notify OS of new request |
| setEncryptionRequested(newRequested); |
| |
| // Return the new global request status |
| return newRequested |
| ? DevicePolicyManager.ENCRYPTION_STATUS_ACTIVE |
| : DevicePolicyManager.ENCRYPTION_STATUS_INACTIVE; |
| } |
| } |
| |
| /** |
| * Get the current storage encryption request status for a given admin, or aggregate of all |
| * active admins. |
| */ |
| public boolean getStorageEncryption(ComponentName who) { |
| synchronized (this) { |
| // Check for permissions if a particular caller is specified |
| if (who != null) { |
| // When checking for a single caller, status is based on caller's request |
| ActiveAdmin ap = getActiveAdminUncheckedLocked(who); |
| return ap != null ? ap.encryptionRequested : false; |
| } |
| |
| // If no particular caller is specified, return the aggregate set of requests. |
| // This is short circuited by returning true on the first hit. |
| final int N = mAdminList.size(); |
| for (int i = 0; i < N; i++) { |
| if (mAdminList.get(i).encryptionRequested) { |
| return true; |
| } |
| } |
| return false; |
| } |
| } |
| |
| /** |
| * Get the current encryption status of the device. |
| */ |
| public int getStorageEncryptionStatus() { |
| return getEncryptionStatus(); |
| } |
| |
| /** |
| * Hook to low-levels: This should report if the filesystem supports encrypted storage. |
| */ |
| private boolean isEncryptionSupported() { |
| // Note, this can be implemented as |
| // return getEncryptionStatus() != DevicePolicyManager.ENCRYPTION_STATUS_UNSUPPORTED; |
| // But is provided as a separate internal method if there's a faster way to do a |
| // simple check for supported-or-not. |
| return getEncryptionStatus() != DevicePolicyManager.ENCRYPTION_STATUS_UNSUPPORTED; |
| } |
| |
| /** |
| * Hook to low-levels: Reporting the current status of encryption. |
| * @return A value such as {@link DevicePolicyManager#ENCRYPTION_STATUS_UNSUPPORTED} or |
| * {@link DevicePolicyManager#ENCRYPTION_STATUS_INACTIVE} or |
| * {@link DevicePolicyManager#ENCRYPTION_STATUS_ACTIVE}. |
| */ |
| private int getEncryptionStatus() { |
| String status = SystemProperties.get("ro.crypto.state", "unsupported"); |
| if ("encrypted".equalsIgnoreCase(status)) { |
| return DevicePolicyManager.ENCRYPTION_STATUS_ACTIVE; |
| } else if ("unencrypted".equalsIgnoreCase(status)) { |
| return DevicePolicyManager.ENCRYPTION_STATUS_INACTIVE; |
| } else { |
| return DevicePolicyManager.ENCRYPTION_STATUS_UNSUPPORTED; |
| } |
| } |
| |
| /** |
| * Hook to low-levels: If needed, record the new admin setting for encryption. |
| */ |
| private void setEncryptionRequested(boolean encrypt) { |
| } |
| |
| /** |
| * The system property used to share the state of the camera. The native camera service |
| * is expected to read this property and act accordingly. |
| */ |
| public static final String SYSTEM_PROP_DISABLE_CAMERA = "sys.secpolicy.camera.disabled"; |
| |
| /** |
| * Disables all device cameras according to the specified admin. |
| */ |
| public void setCameraDisabled(ComponentName who, boolean disabled) { |
| synchronized (this) { |
| if (who == null) { |
| throw new NullPointerException("ComponentName is null"); |
| } |
| ActiveAdmin ap = getActiveAdminForCallerLocked(who, |
| DeviceAdminInfo.USES_POLICY_DISABLE_CAMERA); |
| if (ap.disableCamera != disabled) { |
| ap.disableCamera = disabled; |
| saveSettingsLocked(); |
| } |
| syncDeviceCapabilitiesLocked(); |
| } |
| } |
| |
| /** |
| * Gets whether or not all device cameras are disabled for a given admin, or disabled for any |
| * active admins. |
| */ |
| public boolean getCameraDisabled(ComponentName who) { |
| synchronized (this) { |
| if (who != null) { |
| ActiveAdmin admin = getActiveAdminUncheckedLocked(who); |
| return (admin != null) ? admin.disableCamera : false; |
| } |
| |
| // Determine whether or not the device camera is disabled for any active admins. |
| final int N = mAdminList.size(); |
| for (int i = 0; i < N; i++) { |
| ActiveAdmin admin = mAdminList.get(i); |
| if (admin.disableCamera) { |
| return true; |
| } |
| } |
| return false; |
| } |
| } |
| |
| @Override |
| protected void dump(FileDescriptor fd, PrintWriter pw, String[] args) { |
| if (mContext.checkCallingOrSelfPermission(android.Manifest.permission.DUMP) |
| != PackageManager.PERMISSION_GRANTED) { |
| |
| pw.println("Permission Denial: can't dump DevicePolicyManagerService from from pid=" |
| + Binder.getCallingPid() |
| + ", uid=" + Binder.getCallingUid()); |
| return; |
| } |
| |
| final Printer p = new PrintWriterPrinter(pw); |
| |
| synchronized (this) { |
| p.println("Current Device Policy Manager state:"); |
| |
| p.println(" Enabled Device Admins:"); |
| final int N = mAdminList.size(); |
| for (int i=0; i<N; i++) { |
| ActiveAdmin ap = mAdminList.get(i); |
| if (ap != null) { |
| pw.print(" "); pw.print(ap.info.getComponent().flattenToShortString()); |
| pw.println(":"); |
| ap.dump(" ", pw); |
| } |
| } |
| |
| pw.println(" "); |
| pw.print(" mActivePasswordQuality=0x"); |
| pw.println(Integer.toHexString(mActivePasswordQuality)); |
| pw.print(" mActivePasswordLength="); pw.println(mActivePasswordLength); |
| pw.print(" mActivePasswordUpperCase="); pw.println(mActivePasswordUpperCase); |
| pw.print(" mActivePasswordLowerCase="); pw.println(mActivePasswordLowerCase); |
| pw.print(" mActivePasswordLetters="); pw.println(mActivePasswordLetters); |
| pw.print(" mActivePasswordNumeric="); pw.println(mActivePasswordNumeric); |
| pw.print(" mActivePasswordSymbols="); pw.println(mActivePasswordSymbols); |
| pw.print(" mActivePasswordNonLetter="); pw.println(mActivePasswordNonLetter); |
| pw.print(" mFailedPasswordAttempts="); pw.println(mFailedPasswordAttempts); |
| pw.print(" mPasswordOwner="); pw.println(mPasswordOwner); |
| } |
| } |
| } |
