Google Git
Sign in
android / platform / frameworks / base / 48d453d9530ca8294d619beddc57a6e45fc62198 / . / services / devicepolicy / java / com / android / server / devicepolicy / DevicePolicyManagerService.java
blob: fc96991fbca8128584fefc61ec04ea3622cd3a38 [file] [log] [blame]
/*
* 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.devicepolicy;
import static android.Manifest.permission.MANAGE_CA_CERTIFICATES;
import android.app.admin.DevicePolicyManagerInternal;
import com.android.internal.R;
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 com.android.org.conscrypt.TrustedCertificateStore;
import com.android.server.LocalServices;
import com.android.server.SystemService;
import android.app.Activity;
import android.app.ActivityManagerNative;
import android.app.AlarmManager;
import android.app.AppGlobals;
import android.app.IActivityManager;
import android.app.Notification;
import android.app.NotificationManager;
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.ApplicationInfo;
import android.content.pm.IPackageManager;
import android.content.pm.PackageManager;
import android.content.pm.ResolveInfo;
import android.content.pm.UserInfo;
import android.media.AudioManager;
import android.media.IAudioService;
import android.net.ConnectivityManager;
import android.net.Uri;
import android.content.pm.PackageManager.NameNotFoundException;
import android.database.ContentObserver;
import android.net.ProxyInfo;
import android.os.Binder;
import android.os.Bundle;
import android.os.Environment;
import android.os.Handler;
import android.os.IBinder;
import android.os.IPowerManager;
import android.os.PowerManager;
import android.os.Process;
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.os.UserHandle;
import android.os.UserManager;
import android.provider.Settings;
import android.security.Credentials;
import android.security.IKeyChainService;
import android.security.KeyChain;
import android.security.KeyChain.KeyChainConnection;
import android.util.Log;
import android.util.PrintWriterPrinter;
import android.util.Printer;
import android.util.Slog;
import android.util.SparseArray;
import android.util.Xml;
import android.view.IWindowManager;
import org.xmlpull.v1.XmlPullParser;
import static org.xmlpull.v1.XmlPullParser.END_DOCUMENT;
import static org.xmlpull.v1.XmlPullParser.END_TAG;
import static org.xmlpull.v1.XmlPullParser.TEXT;
import org.xmlpull.v1.XmlPullParserException;
import org.xmlpull.v1.XmlSerializer;
import java.io.ByteArrayInputStream;
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.security.cert.CertificateException;
import java.security.cert.CertificateFactory;
import java.security.cert.X509Certificate;
import java.text.DateFormat;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Date;
import java.util.HashMap;
import java.util.HashSet;
import java.util.List;
import java.util.Map.Entry;
import java.util.Set;
/**
* Implementation of the device policy APIs.
*/
public class DevicePolicyManagerService extends IDevicePolicyManager.Stub {
private static final String LOG_TAG = "DevicePolicyManagerService";
private static final String DEVICE_POLICIES_XML = "device_policies.xml";
private static final String LOCK_TASK_COMPONENTS_XML = "lock-task-component";
private static final int REQUEST_EXPIRE_PASSWORD = 5571;
private static final long MS_PER_DAY = 86400 * 1000;
private static final long EXPIRATION_GRACE_PERIOD_MS = 5 * MS_PER_DAY; // 5 days, in ms
protected static final String ACTION_EXPIRED_PASSWORD_NOTIFICATION
= "com.android.server.ACTION_EXPIRED_PASSWORD_NOTIFICATION";
private static final int MONITORING_CERT_NOTIFICATION_ID = R.string.ssl_ca_cert_warning;
private static final boolean DBG = false;
private static final String ATTR_PERMISSION_PROVIDER = "permission-provider";
private static final String ATTR_SETUP_COMPLETE = "setup-complete";
final Context mContext;
final UserManager mUserManager;
final PowerManager.WakeLock mWakeLock;
IPowerManager mIPowerManager;
IWindowManager mIWindowManager;
NotificationManager mNotificationManager;
// Stores and loads state on device and profile owners.
private DeviceOwner mDeviceOwner;
/**
* Whether or not device admin feature is supported. If it isn't return defaults for all
* public methods.
*/
private boolean mHasFeature;
public static final class Lifecycle extends SystemService {
private DevicePolicyManagerService mService;
public Lifecycle(Context context) {
super(context);
mService = new DevicePolicyManagerService(context);
}
@Override
public void onStart() {
publishBinderService(Context.DEVICE_POLICY_SERVICE, mService);
}
@Override
public void onBootPhase(int phase) {
if (phase == PHASE_LOCK_SETTINGS_READY) {
mService.systemReady();
}
}
}
public static class DevicePolicyData {
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 mUserHandle;
int mPasswordOwner = -1;
long mLastMaximumTimeToLock = -1;
boolean mUserSetupComplete = false;
final HashMap<ComponentName, ActiveAdmin> mAdminMap
= new HashMap<ComponentName, ActiveAdmin>();
final ArrayList<ActiveAdmin> mAdminList
= new ArrayList<ActiveAdmin>();
// This is the list of component allowed to start lock task mode.
final List<String> mLockTaskPackages = new ArrayList<String>();
ComponentName mRestrictionsProvider;
public DevicePolicyData(int userHandle) {
mUserHandle = userHandle;
}
}
final SparseArray<DevicePolicyData> mUserData = new SparseArray<DevicePolicyData>();
Handler mHandler = new Handler();
BroadcastReceiver mReceiver = new BroadcastReceiver() {
@Override
public void onReceive(Context context, Intent intent) {
final String action = intent.getAction();
final int userHandle = intent.getIntExtra(Intent.EXTRA_USER_HANDLE,
getSendingUserId());
if (Intent.ACTION_BOOT_COMPLETED.equals(action)
|| ACTION_EXPIRED_PASSWORD_NOTIFICATION.equals(action)) {
if (DBG) Slog.v(LOG_TAG, "Sending password expiration notifications for action "
+ action + " for user " + userHandle);
mHandler.post(new Runnable() {
public void run() {
handlePasswordExpirationNotification(userHandle);
}
});
}
if (Intent.ACTION_BOOT_COMPLETED.equals(action)
|| KeyChain.ACTION_STORAGE_CHANGED.equals(action)) {
manageMonitoringCertificateNotification(intent);
}
if (Intent.ACTION_USER_REMOVED.equals(action)) {
removeUserData(userHandle);
} else if (Intent.ACTION_USER_STARTED.equals(action)
|| Intent.ACTION_PACKAGE_CHANGED.equals(action)
|| Intent.ACTION_PACKAGE_REMOVED.equals(action)
|| Intent.ACTION_EXTERNAL_APPLICATIONS_UNAVAILABLE.equals(action)) {
if (Intent.ACTION_USER_STARTED.equals(action)) {
// Reset the policy data
synchronized (DevicePolicyManagerService.this) {
mUserData.remove(userHandle);
}
}
handlePackagesChanged(userHandle);
}
}
};
static class ActiveAdmin {
private static final String TAG_DISABLE_KEYGUARD_FEATURES = "disable-keyguard-features";
private static final String TAG_DISABLE_CAMERA = "disable-camera";
private static final String TAG_DISABLE_CALLER_ID = "disable-caller-id";
private static final String TAG_DISABLE_SCREEN_CAPTURE = "disable-screen-capture";
private static final String TAG_DISABLE_ACCOUNT_MANAGEMENT = "disable-account-management";
private static final String TAG_ACCOUNT_TYPE = "account-type";
private static final String TAG_ENCRYPTION_REQUESTED = "encryption-requested";
private static final String TAG_MANAGE_TRUST_AGENT_FEATURES = "manage-trust-agent-features";
private static final String TAG_TRUST_AGENT_FEATURE = "feature";
private static final String TAG_TRUST_AGENT_COMPONENT = "component";
private static final String TAG_PASSWORD_EXPIRATION_DATE = "password-expiration-date";
private static final String TAG_PASSWORD_EXPIRATION_TIMEOUT = "password-expiration-timeout";
private static final String TAG_GLOBAL_PROXY_EXCLUSION_LIST = "global-proxy-exclusion-list";
private static final String TAG_GLOBAL_PROXY_SPEC = "global-proxy-spec";
private static final String TAG_SPECIFIES_GLOBAL_PROXY = "specifies-global-proxy";
private static final String TAG_MAX_FAILED_PASSWORD_WIPE = "max-failed-password-wipe";
private static final String TAG_MAX_TIME_TO_UNLOCK = "max-time-to-unlock";
private static final String TAG_MIN_PASSWORD_NONLETTER = "min-password-nonletter";
private static final String TAG_MIN_PASSWORD_SYMBOLS = "min-password-symbols";
private static final String TAG_MIN_PASSWORD_NUMERIC = "min-password-numeric";
private static final String TAG_MIN_PASSWORD_LETTERS = "min-password-letters";
private static final String TAG_MIN_PASSWORD_LOWERCASE = "min-password-lowercase";
private static final String TAG_MIN_PASSWORD_UPPERCASE = "min-password-uppercase";
private static final String TAG_PASSWORD_HISTORY_LENGTH = "password-history-length";
private static final String TAG_MIN_PASSWORD_LENGTH = "min-password-length";
private static final String ATTR_VALUE = "value";
private static final String TAG_PASSWORD_QUALITY = "password-quality";
private static final String TAG_POLICIES = "policies";
private static final String TAG_CROSS_PROFILE_WIDGET_PROVIDERS =
"cross-profile-widget-providers";
private static final String TAG_PROVIDER = "provider";
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;
static final int DEF_KEYGUARD_FEATURES_DISABLED = 0; // none
int disabledKeyguardFeatures = DEF_KEYGUARD_FEATURES_DISABLED;
boolean encryptionRequested = false;
boolean disableCamera = false;
boolean disableCallerId = false;
boolean disableScreenCapture = false; // Can only be set by a device/profile owner.
Set<String> accountTypesWithManagementDisabled = new HashSet<String>();
// TODO: review implementation decisions with frameworks team
boolean specifiesGlobalProxy = false;
String globalProxySpec = null;
String globalProxyExclusionList = null;
HashMap<String, List<String>> trustAgentFeatures = new HashMap<String, List<String>>();
List<String> crossProfileWidgetProviders;
ActiveAdmin(DeviceAdminInfo _info) {
info = _info;
}
int getUid() { return info.getActivityInfo().applicationInfo.uid; }
public UserHandle getUserHandle() {
return new UserHandle(UserHandle.getUserId(info.getActivityInfo().applicationInfo.uid));
}
void writeToXml(XmlSerializer out)
throws IllegalArgumentException, IllegalStateException, IOException {
out.startTag(null, TAG_POLICIES);
info.writePoliciesToXml(out);
out.endTag(null, TAG_POLICIES);
if (passwordQuality != DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED) {
out.startTag(null, TAG_PASSWORD_QUALITY);
out.attribute(null, ATTR_VALUE, Integer.toString(passwordQuality));
out.endTag(null, TAG_PASSWORD_QUALITY);
if (minimumPasswordLength != DEF_MINIMUM_PASSWORD_LENGTH) {
out.startTag(null, TAG_MIN_PASSWORD_LENGTH);
out.attribute(null, ATTR_VALUE, Integer.toString(minimumPasswordLength));
out.endTag(null, TAG_MIN_PASSWORD_LENGTH);
}
if(passwordHistoryLength != DEF_PASSWORD_HISTORY_LENGTH) {
out.startTag(null, TAG_PASSWORD_HISTORY_LENGTH);
out.attribute(null, ATTR_VALUE, Integer.toString(passwordHistoryLength));
out.endTag(null, TAG_PASSWORD_HISTORY_LENGTH);
}
if (minimumPasswordUpperCase != DEF_MINIMUM_PASSWORD_UPPER_CASE) {
out.startTag(null, TAG_MIN_PASSWORD_UPPERCASE);
out.attribute(null, ATTR_VALUE, Integer.toString(minimumPasswordUpperCase));
out.endTag(null, TAG_MIN_PASSWORD_UPPERCASE);
}
if (minimumPasswordLowerCase != DEF_MINIMUM_PASSWORD_LOWER_CASE) {
out.startTag(null, TAG_MIN_PASSWORD_LOWERCASE);
out.attribute(null, ATTR_VALUE, Integer.toString(minimumPasswordLowerCase));
out.endTag(null, TAG_MIN_PASSWORD_LOWERCASE);
}
if (minimumPasswordLetters != DEF_MINIMUM_PASSWORD_LETTERS) {
out.startTag(null, TAG_MIN_PASSWORD_LETTERS);
out.attribute(null, ATTR_VALUE, Integer.toString(minimumPasswordLetters));
out.endTag(null, TAG_MIN_PASSWORD_LETTERS);
}
if (minimumPasswordNumeric != DEF_MINIMUM_PASSWORD_NUMERIC) {
out.startTag(null, TAG_MIN_PASSWORD_NUMERIC);
out.attribute(null, ATTR_VALUE, Integer.toString(minimumPasswordNumeric));
out.endTag(null, TAG_MIN_PASSWORD_NUMERIC);
}
if (minimumPasswordSymbols != DEF_MINIMUM_PASSWORD_SYMBOLS) {
out.startTag(null, TAG_MIN_PASSWORD_SYMBOLS);
out.attribute(null, ATTR_VALUE, Integer.toString(minimumPasswordSymbols));
out.endTag(null, TAG_MIN_PASSWORD_SYMBOLS);
}
if (minimumPasswordNonLetter > DEF_MINIMUM_PASSWORD_NON_LETTER) {
out.startTag(null, TAG_MIN_PASSWORD_NONLETTER);
out.attribute(null, ATTR_VALUE, Integer.toString(minimumPasswordNonLetter));
out.endTag(null, TAG_MIN_PASSWORD_NONLETTER);
}
}
if (maximumTimeToUnlock != DEF_MAXIMUM_TIME_TO_UNLOCK) {
out.startTag(null, TAG_MAX_TIME_TO_UNLOCK);
out.attribute(null, ATTR_VALUE, Long.toString(maximumTimeToUnlock));
out.endTag(null, TAG_MAX_TIME_TO_UNLOCK);
}
if (maximumFailedPasswordsForWipe != DEF_MAXIMUM_FAILED_PASSWORDS_FOR_WIPE) {
out.startTag(null, TAG_MAX_FAILED_PASSWORD_WIPE);
out.attribute(null, ATTR_VALUE, Integer.toString(maximumFailedPasswordsForWipe));
out.endTag(null, TAG_MAX_FAILED_PASSWORD_WIPE);
}
if (specifiesGlobalProxy) {
out.startTag(null, TAG_SPECIFIES_GLOBAL_PROXY);
out.attribute(null, ATTR_VALUE, Boolean.toString(specifiesGlobalProxy));
out.endTag(null, TAG_SPECIFIES_GLOBAL_PROXY);
if (globalProxySpec != null) {
out.startTag(null, TAG_GLOBAL_PROXY_SPEC);
out.attribute(null, ATTR_VALUE, globalProxySpec);
out.endTag(null, TAG_GLOBAL_PROXY_SPEC);
}
if (globalProxyExclusionList != null) {
out.startTag(null, TAG_GLOBAL_PROXY_EXCLUSION_LIST);
out.attribute(null, ATTR_VALUE, globalProxyExclusionList);
out.endTag(null, TAG_GLOBAL_PROXY_EXCLUSION_LIST);
}
}
if (passwordExpirationTimeout != DEF_PASSWORD_EXPIRATION_TIMEOUT) {
out.startTag(null, TAG_PASSWORD_EXPIRATION_TIMEOUT);
out.attribute(null, ATTR_VALUE, Long.toString(passwordExpirationTimeout));
out.endTag(null, TAG_PASSWORD_EXPIRATION_TIMEOUT);
}
if (passwordExpirationDate != DEF_PASSWORD_EXPIRATION_DATE) {
out.startTag(null, TAG_PASSWORD_EXPIRATION_DATE);
out.attribute(null, ATTR_VALUE, Long.toString(passwordExpirationDate));
out.endTag(null, TAG_PASSWORD_EXPIRATION_DATE);
}
if (encryptionRequested) {
out.startTag(null, TAG_ENCRYPTION_REQUESTED);
out.attribute(null, ATTR_VALUE, Boolean.toString(encryptionRequested));
out.endTag(null, TAG_ENCRYPTION_REQUESTED);
}
if (disableCamera) {
out.startTag(null, TAG_DISABLE_CAMERA);
out.attribute(null, ATTR_VALUE, Boolean.toString(disableCamera));
out.endTag(null, TAG_DISABLE_CAMERA);
}
if (disableCallerId) {
out.startTag(null, TAG_DISABLE_CALLER_ID);
out.attribute(null, ATTR_VALUE, Boolean.toString(disableCallerId));
out.endTag(null, TAG_DISABLE_CALLER_ID);
}
if (disableScreenCapture) {
out.startTag(null, TAG_DISABLE_SCREEN_CAPTURE);
out.attribute(null, ATTR_VALUE, Boolean.toString(disableScreenCapture));
out.endTag(null, TAG_DISABLE_SCREEN_CAPTURE);
}
if (disabledKeyguardFeatures != DEF_KEYGUARD_FEATURES_DISABLED) {
out.startTag(null, TAG_DISABLE_KEYGUARD_FEATURES);
out.attribute(null, ATTR_VALUE, Integer.toString(disabledKeyguardFeatures));
out.endTag(null, TAG_DISABLE_KEYGUARD_FEATURES);
}
if (!accountTypesWithManagementDisabled.isEmpty()) {
out.startTag(null, TAG_DISABLE_ACCOUNT_MANAGEMENT);
for (String ac : accountTypesWithManagementDisabled) {
out.startTag(null, TAG_ACCOUNT_TYPE);
out.attribute(null, ATTR_VALUE, ac);
out.endTag(null, TAG_ACCOUNT_TYPE);
}
out.endTag(null, TAG_DISABLE_ACCOUNT_MANAGEMENT);
}
if (!trustAgentFeatures.isEmpty()) {
Set<Entry<String, List<String>>> set = trustAgentFeatures.entrySet();
out.startTag(null, TAG_MANAGE_TRUST_AGENT_FEATURES);
for (Entry<String, List<String>> component : set) {
out.startTag(null, TAG_TRUST_AGENT_COMPONENT);
out.attribute(null, ATTR_VALUE, component.getKey());
for (String feature : component.getValue()) {
out.startTag(null, TAG_TRUST_AGENT_FEATURE);
out.attribute(null, ATTR_VALUE, feature);
out.endTag(null, TAG_TRUST_AGENT_FEATURE);
}
out.endTag(null, TAG_TRUST_AGENT_COMPONENT);
}
out.endTag(null, TAG_MANAGE_TRUST_AGENT_FEATURES);
}
if (crossProfileWidgetProviders != null && !crossProfileWidgetProviders.isEmpty()) {
out.startTag(null, TAG_CROSS_PROFILE_WIDGET_PROVIDERS);
final int providerCount = crossProfileWidgetProviders.size();
for (int i = 0; i < providerCount; i++) {
String provider = crossProfileWidgetProviders.get(i);
out.startTag(null, TAG_PROVIDER);
out.attribute(null, ATTR_VALUE, provider);
out.endTag(null, TAG_PROVIDER);
}
out.endTag(null, TAG_CROSS_PROFILE_WIDGET_PROVIDERS);
}
}
void readFromXml(XmlPullParser parser)
throws XmlPullParserException, IOException {
int outerDepth = parser.getDepth();
int type;
while ((type=parser.next()) != END_DOCUMENT
&& (type != END_TAG || parser.getDepth() > outerDepth)) {
if (type == END_TAG || type == TEXT) {
continue;
}
String tag = parser.getName();
if (TAG_POLICIES.equals(tag)) {
info.readPoliciesFromXml(parser);
} else if (TAG_PASSWORD_QUALITY.equals(tag)) {
passwordQuality = Integer.parseInt(
parser.getAttributeValue(null, ATTR_VALUE));
} else if (TAG_MIN_PASSWORD_LENGTH.equals(tag)) {
minimumPasswordLength = Integer.parseInt(
parser.getAttributeValue(null, ATTR_VALUE));
} else if (TAG_PASSWORD_HISTORY_LENGTH.equals(tag)) {
passwordHistoryLength = Integer.parseInt(
parser.getAttributeValue(null, ATTR_VALUE));
} else if (TAG_MIN_PASSWORD_UPPERCASE.equals(tag)) {
minimumPasswordUpperCase = Integer.parseInt(
parser.getAttributeValue(null, ATTR_VALUE));
} else if (TAG_MIN_PASSWORD_LOWERCASE.equals(tag)) {
minimumPasswordLowerCase = Integer.parseInt(
parser.getAttributeValue(null, ATTR_VALUE));
} else if (TAG_MIN_PASSWORD_LETTERS.equals(tag)) {
minimumPasswordLetters = Integer.parseInt(
parser.getAttributeValue(null, ATTR_VALUE));
} else if (TAG_MIN_PASSWORD_NUMERIC.equals(tag)) {
minimumPasswordNumeric = Integer.parseInt(
parser.getAttributeValue(null, ATTR_VALUE));
} else if (TAG_MIN_PASSWORD_SYMBOLS.equals(tag)) {
minimumPasswordSymbols = Integer.parseInt(
parser.getAttributeValue(null, ATTR_VALUE));
} else if (TAG_MIN_PASSWORD_NONLETTER.equals(tag)) {
minimumPasswordNonLetter = Integer.parseInt(
parser.getAttributeValue(null, ATTR_VALUE));
} else if (TAG_MAX_TIME_TO_UNLOCK.equals(tag)) {
maximumTimeToUnlock = Long.parseLong(
parser.getAttributeValue(null, ATTR_VALUE));
} else if (TAG_MAX_FAILED_PASSWORD_WIPE.equals(tag)) {
maximumFailedPasswordsForWipe = Integer.parseInt(
parser.getAttributeValue(null, ATTR_VALUE));
} else if (TAG_SPECIFIES_GLOBAL_PROXY.equals(tag)) {
specifiesGlobalProxy = Boolean.parseBoolean(
parser.getAttributeValue(null, ATTR_VALUE));
} else if (TAG_GLOBAL_PROXY_SPEC.equals(tag)) {
globalProxySpec =
parser.getAttributeValue(null, ATTR_VALUE);
} else if (TAG_GLOBAL_PROXY_EXCLUSION_LIST.equals(tag)) {
globalProxyExclusionList =
parser.getAttributeValue(null, ATTR_VALUE);
} else if (TAG_PASSWORD_EXPIRATION_TIMEOUT.equals(tag)) {
passwordExpirationTimeout = Long.parseLong(
parser.getAttributeValue(null, ATTR_VALUE));
} else if (TAG_PASSWORD_EXPIRATION_DATE.equals(tag)) {
passwordExpirationDate = Long.parseLong(
parser.getAttributeValue(null, ATTR_VALUE));
} else if (TAG_ENCRYPTION_REQUESTED.equals(tag)) {
encryptionRequested = Boolean.parseBoolean(
parser.getAttributeValue(null, ATTR_VALUE));
} else if (TAG_DISABLE_CAMERA.equals(tag)) {
disableCamera = Boolean.parseBoolean(
parser.getAttributeValue(null, ATTR_VALUE));
} else if (TAG_DISABLE_CALLER_ID.equals(tag)) {
disableCallerId = Boolean.parseBoolean(
parser.getAttributeValue(null, ATTR_VALUE));
} else if (TAG_DISABLE_SCREEN_CAPTURE.equals(tag)) {
disableScreenCapture = Boolean.parseBoolean(
parser.getAttributeValue(null, ATTR_VALUE));
} else if (TAG_DISABLE_KEYGUARD_FEATURES.equals(tag)) {
disabledKeyguardFeatures = Integer.parseInt(
parser.getAttributeValue(null, ATTR_VALUE));
} else if (TAG_DISABLE_ACCOUNT_MANAGEMENT.equals(tag)) {
accountTypesWithManagementDisabled = readDisableAccountInfo(parser, tag);
} else if (TAG_MANAGE_TRUST_AGENT_FEATURES.equals(tag)) {
trustAgentFeatures = getAllTrustAgentFeatures(parser, tag);
} else if (TAG_CROSS_PROFILE_WIDGET_PROVIDERS.equals(tag)) {
crossProfileWidgetProviders = getCrossProfileWidgetProviders(parser, tag);
} else {
Slog.w(LOG_TAG, "Unknown admin tag: " + tag);
}
XmlUtils.skipCurrentTag(parser);
}
}
private Set<String> readDisableAccountInfo(XmlPullParser parser, String tag)
throws XmlPullParserException, IOException {
int outerDepthDAM = parser.getDepth();
int typeDAM;
Set<String> result = new HashSet<String>();
while ((typeDAM=parser.next()) != END_DOCUMENT
&& (typeDAM != END_TAG || parser.getDepth() > outerDepthDAM)) {
if (typeDAM == END_TAG || typeDAM == TEXT) {
continue;
}
String tagDAM = parser.getName();
if (TAG_ACCOUNT_TYPE.equals(tagDAM)) {
result.add(parser.getAttributeValue(null, ATTR_VALUE));
} else {
Slog.w(LOG_TAG, "Unknown tag under " + tag + ": " + tagDAM);
}
}
return result;
}
private HashMap<String, List<String>> getAllTrustAgentFeatures(XmlPullParser parser,
String tag) throws XmlPullParserException, IOException {
int outerDepthDAM = parser.getDepth();
int typeDAM;
HashMap<String, List<String>> result = new HashMap<String, List<String>>();
while ((typeDAM=parser.next()) != END_DOCUMENT
&& (typeDAM != END_TAG || parser.getDepth() > outerDepthDAM)) {
if (typeDAM == END_TAG || typeDAM == TEXT) {
continue;
}
String tagDAM = parser.getName();
if (TAG_TRUST_AGENT_COMPONENT.equals(tagDAM)) {
final String component = parser.getAttributeValue(null, ATTR_VALUE);
result.put(component, getTrustAgentFeatures(parser, tag));
} else {
Slog.w(LOG_TAG, "Unknown tag under " + tag + ": " + tagDAM);
}
}
return result;
}
private List<String> getTrustAgentFeatures(XmlPullParser parser, String tag)
throws XmlPullParserException, IOException {
int outerDepthDAM = parser.getDepth();
int typeDAM;
ArrayList<String> result = new ArrayList<String>();
while ((typeDAM=parser.next()) != END_DOCUMENT
&& (typeDAM != END_TAG || parser.getDepth() > outerDepthDAM)) {
if (typeDAM == END_TAG || typeDAM == TEXT) {
continue;
}
String tagDAM = parser.getName();
if (TAG_TRUST_AGENT_FEATURE.equals(tagDAM)) {
final String feature = parser.getAttributeValue(null, ATTR_VALUE);
result.add(feature);
} else {
Slog.w(LOG_TAG, "Unknown tag under " + tag + ": " + tagDAM);
}
}
return result;
}
private List<String> getCrossProfileWidgetProviders(XmlPullParser parser, String tag)
throws XmlPullParserException, IOException {
int outerDepthDAM = parser.getDepth();
int typeDAM;
ArrayList<String> result = null;
while ((typeDAM=parser.next()) != END_DOCUMENT
&& (typeDAM != END_TAG || parser.getDepth() > outerDepthDAM)) {
if (typeDAM == END_TAG || typeDAM == TEXT) {
continue;
}
String tagDAM = parser.getName();
if (TAG_PROVIDER.equals(tagDAM)) {
final String provider = parser.getAttributeValue(null, ATTR_VALUE);
if (result == null) {
result = new ArrayList<>();
}
result.add(provider);
} else {
Slog.w(LOG_TAG, "Unknown tag under " + tag + ": " + tagDAM);
}
}
return result;
}
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);
pw.print(prefix); pw.print("disableCallerId=");
pw.println(disableCallerId);
pw.print(prefix); pw.print("disableScreenCapture=");
pw.println(disableScreenCapture);
pw.print(prefix); pw.print("disabledKeyguardFeatures=");
pw.println(disabledKeyguardFeatures);
pw.print(prefix); pw.print("crossProfileWidgetProviders=");
pw.println(crossProfileWidgetProviders);
}
}
private void handlePackagesChanged(int userHandle) {
boolean removed = false;
if (DBG) Slog.d(LOG_TAG, "Handling package changes for user " + userHandle);
DevicePolicyData policy = getUserData(userHandle);
IPackageManager pm = AppGlobals.getPackageManager();
for (int i = policy.mAdminList.size() - 1; i >= 0; i--) {
ActiveAdmin aa = policy.mAdminList.get(i);
try {
if (pm.getPackageInfo(aa.info.getPackageName(), 0, userHandle) == null
|| pm.getReceiverInfo(aa.info.getComponent(), 0, userHandle) == null) {
removed = true;
policy.mAdminList.remove(i);
policy.mAdminMap.remove(aa.info.getComponent());
}
} catch (RemoteException re) {
// Shouldn't happen
}
}
if (removed) {
validatePasswordOwnerLocked(policy);
syncDeviceCapabilitiesLocked(policy);
saveSettingsLocked(policy.mUserHandle);
}
}
/**
* Instantiates the service.
*/
public DevicePolicyManagerService(Context context) {
mContext = context;
mUserManager = UserManager.get(mContext);
mHasFeature = context.getPackageManager().hasSystemFeature(
PackageManager.FEATURE_DEVICE_ADMIN);
mWakeLock = ((PowerManager)context.getSystemService(Context.POWER_SERVICE))
.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, "DPM");
if (!mHasFeature) {
// Skip the rest of the initialization
return;
}
IntentFilter filter = new IntentFilter();
filter.addAction(Intent.ACTION_BOOT_COMPLETED);
filter.addAction(ACTION_EXPIRED_PASSWORD_NOTIFICATION);
filter.addAction(Intent.ACTION_USER_REMOVED);
filter.addAction(Intent.ACTION_USER_STARTED);
filter.addAction(KeyChain.ACTION_STORAGE_CHANGED);
filter.setPriority(IntentFilter.SYSTEM_HIGH_PRIORITY);
context.registerReceiverAsUser(mReceiver, UserHandle.ALL, filter, null, mHandler);
filter = new IntentFilter();
filter.addAction(Intent.ACTION_PACKAGE_CHANGED);
filter.addAction(Intent.ACTION_PACKAGE_REMOVED);
filter.addAction(Intent.ACTION_EXTERNAL_APPLICATIONS_UNAVAILABLE);
filter.addAction(Intent.ACTION_PACKAGE_ADDED);
filter.addDataScheme("package");
context.registerReceiverAsUser(mReceiver, UserHandle.ALL, filter, null, mHandler);
LocalServices.addService(DevicePolicyManagerInternal.class, new LocalService());
}
/**
* Creates and loads the policy data from xml.
* @param userHandle the user for whom to load the policy data
* @return
*/
DevicePolicyData getUserData(int userHandle) {
synchronized (this) {
DevicePolicyData policy = mUserData.get(userHandle);
if (policy == null) {
policy = new DevicePolicyData(userHandle);
mUserData.append(userHandle, policy);
loadSettingsLocked(policy, userHandle);
}
return policy;
}
}
void removeUserData(int userHandle) {
synchronized (this) {
if (userHandle == UserHandle.USER_OWNER) {
Slog.w(LOG_TAG, "Tried to remove device policy file for user 0! Ignoring.");
return;
}
if (mDeviceOwner != null) {
mDeviceOwner.removeProfileOwner(userHandle);
mDeviceOwner.writeOwnerFile();
}
DevicePolicyData policy = mUserData.get(userHandle);
if (policy != null) {
mUserData.remove(userHandle);
}
File policyFile = new File(Environment.getUserSystemDirectory(userHandle),
DEVICE_POLICIES_XML);
policyFile.delete();
Slog.i(LOG_TAG, "Removed device policy file " + policyFile.getAbsolutePath());
}
updateScreenCaptureDisabledInWindowManager(userHandle, false /* default value */);
}
void loadDeviceOwner() {
synchronized (this) {
mDeviceOwner = DeviceOwner.load();
}
}
/**
* 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, DevicePolicyData policy) {
final long expiration = getPasswordExpirationLocked(null, policy.mUserHandle);
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.getBroadcastAsUser(context, REQUEST_EXPIRE_PASSWORD,
new Intent(ACTION_EXPIRED_PASSWORD_NOTIFICATION),
PendingIntent.FLAG_ONE_SHOT | PendingIntent.FLAG_UPDATE_CURRENT,
new UserHandle(policy.mUserHandle));
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;
}
private IWindowManager getWindowManager() {
if (mIWindowManager == null) {
IBinder b = ServiceManager.getService(Context.WINDOW_SERVICE);
mIWindowManager = IWindowManager.Stub.asInterface(b);
}
return mIWindowManager;
}
private NotificationManager getNotificationManager() {
if (mNotificationManager == null) {
mNotificationManager =
(NotificationManager) mContext.getSystemService(Context.NOTIFICATION_SERVICE);
}
return mNotificationManager;
}
ActiveAdmin getActiveAdminUncheckedLocked(ComponentName who, int userHandle) {
ActiveAdmin admin = getUserData(userHandle).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();
final int userHandle = UserHandle.getUserId(callingUid);
final DevicePolicyData policy = getUserData(userHandle);
List<ActiveAdmin> candidates = new ArrayList<ActiveAdmin>();
// Build a list of admins for this uid matching the given ComponentName
if (who != null) {
ActiveAdmin admin = policy.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());
}
candidates.add(admin);
} else {
for (ActiveAdmin admin : policy.mAdminList) {
if (admin.getUid() == callingUid) {
candidates.add(admin);
}
}
}
// Try to find an admin which can use reqPolicy
for (ActiveAdmin admin : candidates) {
boolean ownsDevice = isDeviceOwner(admin.info.getPackageName());
boolean ownsProfile = (getProfileOwner(userHandle) != null
&& getProfileOwner(userHandle).getPackageName()
.equals(admin.info.getPackageName()));
if (reqPolicy == DeviceAdminInfo.USES_POLICY_DEVICE_OWNER) {
if (ownsDevice) {
return admin;
}
} else if (reqPolicy == DeviceAdminInfo.USES_POLICY_PROFILE_OWNER) {
if (ownsDevice || ownsProfile) {
return admin;
}
} else {
if (admin.info.usesPolicy(reqPolicy)) {
return admin;
}
}
}
if (who != null) {
if (reqPolicy == DeviceAdminInfo.USES_POLICY_DEVICE_OWNER) {
throw new SecurityException("Admin " + candidates.get(0).info.getComponent()
+ " does not own the device");
}
if (reqPolicy == DeviceAdminInfo.USES_POLICY_PROFILE_OWNER) {
throw new SecurityException("Admin " + candidates.get(0).info.getComponent()
+ " does not own the profile");
}
throw new SecurityException("Admin " + candidates.get(0).info.getComponent()
+ " did not specify uses-policy for: "
+ candidates.get(0).info.getTagForPolicy(reqPolicy));
} else {
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) {
sendAdminCommandLocked(admin, action, null, result);
}
/**
* Send an update to one specific admin, get notified when that admin returns a result.
*/
void sendAdminCommandLocked(ActiveAdmin admin, String action, Bundle adminExtras,
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 (adminExtras != null) {
intent.putExtras(adminExtras);
}
if (result != null) {
mContext.sendOrderedBroadcastAsUser(intent, admin.getUserHandle(),
null, result, mHandler, Activity.RESULT_OK, null, null);
} else {
mContext.sendBroadcastAsUser(intent, admin.getUserHandle());
}
}
/**
* Send an update to all admins of a user that enforce a specified policy.
*/
void sendAdminCommandLocked(String action, int reqPolicy, int userHandle) {
final DevicePolicyData policy = getUserData(userHandle);
final int count = policy.mAdminList.size();
if (count > 0) {
for (int i = 0; i < count; i++) {
final ActiveAdmin admin = policy.mAdminList.get(i);
if (admin.info.usesPolicy(reqPolicy)) {
sendAdminCommandLocked(admin, action);
}
}
}
}
/**
* Send an update intent to all admins of a user and its profiles. Only send to admins that
* enforce a specified policy.
*/
private void sendAdminCommandToSelfAndProfilesLocked(String action, int reqPolicy,
int userHandle) {
List<UserInfo> profiles = mUserManager.getProfiles(userHandle);
for (UserInfo ui : profiles) {
int id = ui.getUserHandle().getIdentifier();
sendAdminCommandLocked(action, reqPolicy, id);
}
}
void removeActiveAdminLocked(final ComponentName adminReceiver, int userHandle) {
final ActiveAdmin admin = getActiveAdminUncheckedLocked(adminReceiver, userHandle);
if (admin != null) {
sendAdminCommandLocked(admin,
DeviceAdminReceiver.ACTION_DEVICE_ADMIN_DISABLED,
new BroadcastReceiver() {
@Override
public void onReceive(Context context, Intent intent) {
synchronized (DevicePolicyManagerService.this) {
int userHandle = admin.getUserHandle().getIdentifier();
DevicePolicyData policy = getUserData(userHandle);
boolean doProxyCleanup = admin.info.usesPolicy(
DeviceAdminInfo.USES_POLICY_SETS_GLOBAL_PROXY);
policy.mAdminList.remove(admin);
policy.mAdminMap.remove(adminReceiver);
validatePasswordOwnerLocked(policy);
syncDeviceCapabilitiesLocked(policy);
if (doProxyCleanup) {
resetGlobalProxyLocked(getUserData(userHandle));
}
saveSettingsLocked(userHandle);
updateMaximumTimeToLockLocked(policy);
}
}
});
}
}
public DeviceAdminInfo findAdmin(ComponentName adminName, int userHandle) {
if (!mHasFeature) {
return null;
}
enforceCrossUserPermission(userHandle);
Intent resolveIntent = new Intent();
resolveIntent.setComponent(adminName);
List<ResolveInfo> infos = mContext.getPackageManager().queryBroadcastReceivers(
resolveIntent,
PackageManager.GET_META_DATA | PackageManager.GET_DISABLED_UNTIL_USED_COMPONENTS,
userHandle);
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(LOG_TAG, "Bad device admin requested for user=" + userHandle + ": " + adminName,
e);
return null;
} catch (IOException e) {
Slog.w(LOG_TAG, "Bad device admin requested for user=" + userHandle + ": " + adminName,
e);
return null;
}
}
private static JournaledFile makeJournaledFile(int userHandle) {
final String base = userHandle == 0
? "/data/system/" + DEVICE_POLICIES_XML
: new File(Environment.getUserSystemDirectory(userHandle), DEVICE_POLICIES_XML)
.getAbsolutePath();
return new JournaledFile(new File(base), new File(base + ".tmp"));
}
private void saveSettingsLocked(int userHandle) {
DevicePolicyData policy = getUserData(userHandle);
JournaledFile journal = makeJournaledFile(userHandle);
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");
if (policy.mRestrictionsProvider != null) {
out.attribute(null, ATTR_PERMISSION_PROVIDER,
policy.mRestrictionsProvider.flattenToString());
}
if (policy.mUserSetupComplete) {
out.attribute(null, ATTR_SETUP_COMPLETE,
Boolean.toString(true));
}
final int N = policy.mAdminList.size();
for (int i=0; i<N; i++) {
ActiveAdmin ap = policy.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 (policy.mPasswordOwner >= 0) {
out.startTag(null, "password-owner");
out.attribute(null, "value", Integer.toString(policy.mPasswordOwner));
out.endTag(null, "password-owner");
}
if (policy.mFailedPasswordAttempts != 0) {
out.startTag(null, "failed-password-attempts");
out.attribute(null, "value", Integer.toString(policy.mFailedPasswordAttempts));
out.endTag(null, "failed-password-attempts");
}
if (policy.mActivePasswordQuality != 0 || policy.mActivePasswordLength != 0
|| policy.mActivePasswordUpperCase != 0 || policy.mActivePasswordLowerCase != 0
|| policy.mActivePasswordLetters != 0 || policy.mActivePasswordNumeric != 0
|| policy.mActivePasswordSymbols != 0 || policy.mActivePasswordNonLetter != 0) {
out.startTag(null, "active-password");
out.attribute(null, "quality", Integer.toString(policy.mActivePasswordQuality));
out.attribute(null, "length", Integer.toString(policy.mActivePasswordLength));
out.attribute(null, "uppercase", Integer.toString(policy.mActivePasswordUpperCase));
out.attribute(null, "lowercase", Integer.toString(policy.mActivePasswordLowerCase));
out.attribute(null, "letters", Integer.toString(policy.mActivePasswordLetters));
out.attribute(null, "numeric", Integer
.toString(policy.mActivePasswordNumeric));
out.attribute(null, "symbols", Integer.toString(policy.mActivePasswordSymbols));
out.attribute(null, "nonletter", Integer.toString(policy.mActivePasswordNonLetter));
out.endTag(null, "active-password");
}
for (int i=0; i<policy.mLockTaskPackages.size(); i++) {
String component = policy.mLockTaskPackages.get(i);
out.startTag(null, LOCK_TASK_COMPONENTS_XML);
out.attribute(null, "name", component);
out.endTag(null, LOCK_TASK_COMPONENTS_XML);
}
out.endTag(null, "policies");
out.endDocument();
stream.close();
journal.commit();
sendChangedNotification(userHandle);
} catch (IOException e) {
try {
if (stream != null) {
stream.close();
}
} catch (IOException ex) {
// Ignore
}
journal.rollback();
}
}
private void sendChangedNotification(int userHandle) {
Intent intent = new Intent(DevicePolicyManager.ACTION_DEVICE_POLICY_MANAGER_STATE_CHANGED);
intent.setFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY);
long ident = Binder.clearCallingIdentity();
try {
mContext.sendBroadcastAsUser(intent, new UserHandle(userHandle));
} finally {
Binder.restoreCallingIdentity(ident);
}
}
private void loadSettingsLocked(DevicePolicyData policy, int userHandle) {
JournaledFile journal = makeJournaledFile(userHandle);
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);
}
// Extract the permission provider component name if available
String permissionProvider = parser.getAttributeValue(null, ATTR_PERMISSION_PROVIDER);
if (permissionProvider != null) {
policy.mRestrictionsProvider = ComponentName.unflattenFromString(permissionProvider);
}
String userSetupComplete = parser.getAttributeValue(null, ATTR_SETUP_COMPLETE);
if (userSetupComplete != null && Boolean.toString(true).equals(userSetupComplete)) {
policy.mUserSetupComplete = true;
}
type = parser.next();
int outerDepth = parser.getDepth();
policy.mLockTaskPackages.clear();
policy.mAdminList.clear();
policy.mAdminMap.clear();
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), userHandle);
if (DBG && (UserHandle.getUserId(dai.getActivityInfo().applicationInfo.uid)
!= userHandle)) {
Slog.w(LOG_TAG, "findAdmin returned an incorrect uid "
+ dai.getActivityInfo().applicationInfo.uid + " for user "
+ userHandle);
}
if (dai != null) {
ActiveAdmin ap = new ActiveAdmin(dai);
ap.readFromXml(parser);
policy.mAdminMap.put(ap.info.getComponent(), ap);
}
} catch (RuntimeException e) {
Slog.w(LOG_TAG, "Failed loading admin " + name, e);
}
} else if ("failed-password-attempts".equals(tag)) {
policy.mFailedPasswordAttempts = Integer.parseInt(
parser.getAttributeValue(null, "value"));
XmlUtils.skipCurrentTag(parser);
} else if ("password-owner".equals(tag)) {
policy.mPasswordOwner = Integer.parseInt(
parser.getAttributeValue(null, "value"));
XmlUtils.skipCurrentTag(parser);
} else if ("active-password".equals(tag)) {
policy.mActivePasswordQuality = Integer.parseInt(
parser.getAttributeValue(null, "quality"));
policy.mActivePasswordLength = Integer.parseInt(
parser.getAttributeValue(null, "length"));
policy.mActivePasswordUpperCase = Integer.parseInt(
parser.getAttributeValue(null, "uppercase"));
policy.mActivePasswordLowerCase = Integer.parseInt(
parser.getAttributeValue(null, "lowercase"));
policy.mActivePasswordLetters = Integer.parseInt(
parser.getAttributeValue(null, "letters"));
policy.mActivePasswordNumeric = Integer.parseInt(
parser.getAttributeValue(null, "numeric"));
policy.mActivePasswordSymbols = Integer.parseInt(
parser.getAttributeValue(null, "symbols"));
policy.mActivePasswordNonLetter = Integer.parseInt(
parser.getAttributeValue(null, "nonletter"));
XmlUtils.skipCurrentTag(parser);
} else if (LOCK_TASK_COMPONENTS_XML.equals(tag)) {
policy.mLockTaskPackages.add(parser.getAttributeValue(null, "name"));
XmlUtils.skipCurrentTag(parser);
} else {
Slog.w(LOG_TAG, "Unknown tag: " + tag);
XmlUtils.skipCurrentTag(parser);
}
}
} catch (NullPointerException e) {
Slog.w(LOG_TAG, "failed parsing " + file + " " + e);
} catch (NumberFormatException e) {
Slog.w(LOG_TAG, "failed parsing " + file + " " + e);
} catch (XmlPullParserException e) {
Slog.w(LOG_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(LOG_TAG, "failed parsing " + file + " " + e);
} catch (IndexOutOfBoundsException e) {
Slog.w(LOG_TAG, "failed parsing " + file + " " + e);
}
try {
if (stream != null) {
stream.close();
}
} catch (IOException e) {
// Ignore
}
// Generate a list of admins from the admin map
policy.mAdminList.addAll(policy.mAdminMap.values());
// 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() < policy.mActivePasswordQuality) {
Slog.w(LOG_TAG, "Active password quality 0x"
+ Integer.toHexString(policy.mActivePasswordQuality)
+ " does not match actual quality 0x"
+ Integer.toHexString(utils.getActivePasswordQuality()));
policy.mActivePasswordQuality = DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED;
policy.mActivePasswordLength = 0;
policy.mActivePasswordUpperCase = 0;
policy.mActivePasswordLowerCase = 0;
policy.mActivePasswordLetters = 0;
policy.mActivePasswordNumeric = 0;
policy.mActivePasswordSymbols = 0;
policy.mActivePasswordNonLetter = 0;
}
validatePasswordOwnerLocked(policy);
syncDeviceCapabilitiesLocked(policy);
updateMaximumTimeToLockLocked(policy);
}
static void validateQualityConstant(int quality) {
switch (quality) {
case DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED:
case DevicePolicyManager.PASSWORD_QUALITY_BIOMETRIC_WEAK:
case DevicePolicyManager.PASSWORD_QUALITY_SOMETHING:
case DevicePolicyManager.PASSWORD_QUALITY_NUMERIC:
case DevicePolicyManager.PASSWORD_QUALITY_NUMERIC_COMPLEX:
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(DevicePolicyData policy) {
if (policy.mPasswordOwner >= 0) {
boolean haveOwner = false;
for (int i = policy.mAdminList.size() - 1; i >= 0; i--) {
if (policy.mAdminList.get(i).getUid() == policy.mPasswordOwner) {
haveOwner = true;
break;
}
}
if (!haveOwner) {
Slog.w(LOG_TAG, "Previous password owner " + policy.mPasswordOwner
+ " no longer active; disabling");
policy.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(DevicePolicyData policy) {
// 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, policy.mUserHandle);
if (cameraDisabled != systemState) {
long token = Binder.clearCallingIdentity();
try {
String value = cameraDisabled ? "1" : "0";
if (DBG) Slog.v(LOG_TAG, "Change in camera state ["
+ SYSTEM_PROP_DISABLE_CAMERA + "] = " + value);
SystemProperties.set(SYSTEM_PROP_DISABLE_CAMERA, value);
} finally {
Binder.restoreCallingIdentity(token);
}
}
}
public void systemReady() {
if (!mHasFeature) {
return;
}
getUserData(UserHandle.USER_OWNER);
loadDeviceOwner();
cleanUpOldUsers();
// Register an observer for watching for user setup complete.
new SetupContentObserver(mHandler).register(mContext.getContentResolver());
// Initialize the user setup state, to handle the upgrade case.
updateUserSetupComplete();
// Update the screen capture disabled cache in the window manager
List<UserInfo> users = mUserManager.getUsers(true);
final int N = users.size();
for (int i = 0; i < N; i++) {
int userHandle = users.get(i).id;
updateScreenCaptureDisabledInWindowManager(userHandle,
getScreenCaptureDisabled(null, userHandle));
}
}
private void cleanUpOldUsers() {
// This is needed in case the broadcast {@link Intent.ACTION_USER_REMOVED} was not handled
// before reboot
Set<Integer> usersWithProfileOwners;
Set<Integer> usersWithData;
synchronized(this) {
usersWithProfileOwners = mDeviceOwner != null
? mDeviceOwner.getProfileOwnerKeys() : new HashSet<Integer>();
usersWithData = new HashSet<Integer>();
for (int i = 0; i < mUserData.size(); i++) {
usersWithData.add(mUserData.keyAt(i));
}
}
List<UserInfo> allUsers = mUserManager.getUsers();
Set<Integer> deletedUsers = new HashSet<Integer>();
deletedUsers.addAll(usersWithProfileOwners);
deletedUsers.addAll(usersWithData);
for (UserInfo userInfo : allUsers) {
deletedUsers.remove(userInfo.id);
}
for (Integer userId : deletedUsers) {
removeUserData(userId);
}
}
private void handlePasswordExpirationNotification(int userHandle) {
synchronized (this) {
final long now = System.currentTimeMillis();
List<UserInfo> profiles = mUserManager.getProfiles(userHandle);
for (UserInfo ui : profiles) {
int profileUserHandle = ui.getUserHandle().getIdentifier();
final DevicePolicyData policy = getUserData(profileUserHandle);
final int count = policy.mAdminList.size();
if (count > 0) {
for (int i = 0; i < count; i++) {
final ActiveAdmin admin = policy.mAdminList.get(i);
if (admin.info.usesPolicy(DeviceAdminInfo.USES_POLICY_EXPIRE_PASSWORD)
&& admin.passwordExpirationTimeout > 0L
&& now >= admin.passwordExpirationDate - EXPIRATION_GRACE_PERIOD_MS
&& admin.passwordExpirationDate > 0L) {
sendAdminCommandLocked(admin,
DeviceAdminReceiver.ACTION_PASSWORD_EXPIRING);
}
}
}
}
setExpirationAlarmCheckLocked(mContext, getUserData(userHandle));
}
}
private void manageMonitoringCertificateNotification(Intent intent) {
final NotificationManager notificationManager = getNotificationManager();
final boolean hasCert = !(new TrustedCertificateStore().userAliases().isEmpty());
if (! hasCert) {
if (intent.getAction().equals(KeyChain.ACTION_STORAGE_CHANGED)) {
for (UserInfo user : mUserManager.getUsers()) {
notificationManager.cancelAsUser(
null, MONITORING_CERT_NOTIFICATION_ID, user.getUserHandle());
}
}
return;
}
final boolean isManaged = getDeviceOwner() != null;
int smallIconId;
String contentText;
if (isManaged) {
contentText = mContext.getString(R.string.ssl_ca_cert_noti_managed,
getDeviceOwnerName());
smallIconId = R.drawable.stat_sys_certificate_info;
} else {
contentText = mContext.getString(R.string.ssl_ca_cert_noti_by_unknown);
smallIconId = android.R.drawable.stat_sys_warning;
}
Intent dialogIntent = new Intent(Settings.ACTION_MONITORING_CERT_INFO);
dialogIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_CLEAR_TASK);
dialogIntent.setPackage("com.android.settings");
// Notification will be sent individually to all users. The activity should start as
// whichever user is current when it starts.
PendingIntent notifyIntent = PendingIntent.getActivityAsUser(mContext, 0, dialogIntent,
PendingIntent.FLAG_UPDATE_CURRENT, null, UserHandle.CURRENT);
Notification noti = new Notification.Builder(mContext)
.setSmallIcon(smallIconId)
.setContentTitle(mContext.getString(R.string.ssl_ca_cert_warning))
.setContentText(contentText)
.setContentIntent(notifyIntent)
.setPriority(Notification.PRIORITY_HIGH)
.setShowWhen(false)
.build();
// If this is a boot intent, this will fire for each user. But if this is a storage changed
// intent, it will fire once, so we need to notify all users.
if (intent.getAction().equals(KeyChain.ACTION_STORAGE_CHANGED)) {
for (UserInfo user : mUserManager.getUsers()) {
notificationManager.notifyAsUser(
null, MONITORING_CERT_NOTIFICATION_ID, noti, user.getUserHandle());
}
} else {
notificationManager.notifyAsUser(
null, MONITORING_CERT_NOTIFICATION_ID, noti, UserHandle.CURRENT);
}
}
/**
* @param adminReceiver The admin to add
* @param refreshing true = update an active admin, no error
*/
public void setActiveAdmin(ComponentName adminReceiver, boolean refreshing, int userHandle) {
if (!mHasFeature) {
return;
}
setActiveAdmin(adminReceiver, refreshing, userHandle, null);
}
private void setActiveAdmin(ComponentName adminReceiver, boolean refreshing, int userHandle,
Bundle onEnableData) {
mContext.enforceCallingOrSelfPermission(
android.Manifest.permission.MANAGE_DEVICE_ADMINS, null);
enforceCrossUserPermission(userHandle);
DevicePolicyData policy = getUserData(userHandle);
DeviceAdminInfo info = findAdmin(adminReceiver, userHandle);
if (info == null) {
throw new IllegalArgumentException("Bad admin: " + adminReceiver);
}
synchronized (this) {
long ident = Binder.clearCallingIdentity();
try {
if (!refreshing
&& getActiveAdminUncheckedLocked(adminReceiver, userHandle) != null) {
throw new IllegalArgumentException("Admin is already added");
}
ActiveAdmin newAdmin = new ActiveAdmin(info);
policy.mAdminMap.put(adminReceiver, newAdmin);
int replaceIndex = -1;
final int N = policy.mAdminList.size();
for (int i=0; i < N; i++) {
ActiveAdmin oldAdmin = policy.mAdminList.get(i);
if (oldAdmin.info.getComponent().equals(adminReceiver)) {
replaceIndex = i;
break;
}
}
if (replaceIndex == -1) {
policy.mAdminList.add(newAdmin);
enableIfNecessary(info.getPackageName(), userHandle);
} else {
policy.mAdminList.set(replaceIndex, newAdmin);
}
saveSettingsLocked(userHandle);
sendAdminCommandLocked(newAdmin, DeviceAdminReceiver.ACTION_DEVICE_ADMIN_ENABLED,
onEnableData, null);
} finally {
Binder.restoreCallingIdentity(ident);
}
}
}
public boolean isAdminActive(ComponentName adminReceiver, int userHandle) {
if (!mHasFeature) {
return false;
}
enforceCrossUserPermission(userHandle);
synchronized (this) {
return getActiveAdminUncheckedLocked(adminReceiver, userHandle) != null;
}
}
public boolean hasGrantedPolicy(ComponentName adminReceiver, int policyId, int userHandle) {
if (!mHasFeature) {
return false;
}
enforceCrossUserPermission(userHandle);
synchronized (this) {
ActiveAdmin administrator = getActiveAdminUncheckedLocked(adminReceiver, userHandle);
if (administrator == null) {
throw new SecurityException("No active admin " + adminReceiver);
}
return administrator.info.usesPolicy(policyId);
}
}
@SuppressWarnings("unchecked")
public List<ComponentName> getActiveAdmins(int userHandle) {
if (!mHasFeature) {
return Collections.EMPTY_LIST;
}
enforceCrossUserPermission(userHandle);
synchronized (this) {
DevicePolicyData policy = getUserData(userHandle);
final int N = policy.mAdminList.size();
if (N <= 0) {
return null;
}
ArrayList<ComponentName> res = new ArrayList<ComponentName>(N);
for (int i=0; i<N; i++) {
res.add(policy.mAdminList.get(i).info.getComponent());
}
return res;
}
}
public boolean packageHasActiveAdmins(String packageName, int userHandle) {
if (!mHasFeature) {
return false;
}
enforceCrossUserPermission(userHandle);
synchronized (this) {
DevicePolicyData policy = getUserData(userHandle);
final int N = policy.mAdminList.size();
for (int i=0; i<N; i++) {
if (policy.mAdminList.get(i).info.getPackageName().equals(packageName)) {
return true;
}
}
return false;
}
}
public void removeActiveAdmin(ComponentName adminReceiver, int userHandle) {
if (!mHasFeature) {
return;
}
enforceCrossUserPermission(userHandle);
synchronized (this) {
ActiveAdmin admin = getActiveAdminUncheckedLocked(adminReceiver, userHandle);
if (admin == null) {
return;
}
if (admin.getUid() != Binder.getCallingUid()) {
// If trying to remove device owner, refuse when the caller is not the owner.
if (isDeviceOwner(adminReceiver.getPackageName())) {
return;
}
mContext.enforceCallingOrSelfPermission(
android.Manifest.permission.MANAGE_DEVICE_ADMINS, null);
}
long ident = Binder.clearCallingIdentity();
try {
removeActiveAdminLocked(adminReceiver, userHandle);
} finally {
Binder.restoreCallingIdentity(ident);
}
}
}
public void setPasswordQuality(ComponentName who, int quality, int userHandle) {
if (!mHasFeature) {
return;
}
validateQualityConstant(quality);
enforceCrossUserPermission(userHandle);
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(userHandle);
}
}
}
public int getPasswordQuality(ComponentName who, int userHandle) {
if (!mHasFeature) {
return DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED;
}
enforceCrossUserPermission(userHandle);
synchronized (this) {
int mode = DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED;
if (who != null) {
ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle);
return admin != null ? admin.passwordQuality : mode;
}
// Return strictest policy for this user and profiles that are visible from this user.
List<UserInfo> profiles = mUserManager.getProfiles(userHandle);
for (UserInfo userInfo : profiles) {
DevicePolicyData policy = getUserData(userInfo.getUserHandle().getIdentifier());
final int N = policy.mAdminList.size();
for (int i=0; i<N; i++) {
ActiveAdmin admin = policy.mAdminList.get(i);
if (mode < admin.passwordQuality) {
mode = admin.passwordQuality;
}
}
}
return mode;
}
}
public void setPasswordMinimumLength(ComponentName who, int length, int userHandle) {
if (!mHasFeature) {
return;
}
enforceCrossUserPermission(userHandle);
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(userHandle);
}
}
}
public int getPasswordMinimumLength(ComponentName who, int userHandle) {
if (!mHasFeature) {
return 0;
}
enforceCrossUserPermission(userHandle);
synchronized (this) {
int length = 0;
if (who != null) {
ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle);
return admin != null ? admin.minimumPasswordLength : length;
}
// Return strictest policy for this user and profiles that are visible from this user.
List<UserInfo> profiles = mUserManager.getProfiles(userHandle);
for (UserInfo userInfo : profiles) {
DevicePolicyData policy = getUserData(userInfo.getUserHandle().getIdentifier());
final int N = policy.mAdminList.size();
for (int i=0; i<N; i++) {
ActiveAdmin admin = policy.mAdminList.get(i);
if (length < admin.minimumPasswordLength) {
length = admin.minimumPasswordLength;
}
}
}
return length;
}
}
public void setPasswordHistoryLength(ComponentName who, int length, int userHandle) {
if (!mHasFeature) {
return;
}
enforceCrossUserPermission(userHandle);
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(userHandle);
}
}
}
public int getPasswordHistoryLength(ComponentName who, int userHandle) {
if (!mHasFeature) {
return 0;
}
enforceCrossUserPermission(userHandle);
synchronized (this) {
int length = 0;
if (who != null) {
ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle);
return admin != null ? admin.passwordHistoryLength : length;
}
// Return strictest policy for this user and profiles that are visible from this user.
List<UserInfo> profiles = mUserManager.getProfiles(userHandle);
for (UserInfo userInfo : profiles) {
DevicePolicyData policy = getUserData(userInfo.getUserHandle().getIdentifier());
final int N = policy.mAdminList.size();
for (int i = 0; i < N; i++) {
ActiveAdmin admin = policy.mAdminList.get(i);
if (length < admin.passwordHistoryLength) {
length = admin.passwordHistoryLength;
}
}
}
return length;
}
}
public void setPasswordExpirationTimeout(ComponentName who, long timeout, int userHandle) {
if (!mHasFeature) {
return;
}
enforceCrossUserPermission(userHandle);
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(LOG_TAG, "setPasswordExpiration(): password will expire on "
+ DateFormat.getDateTimeInstance(DateFormat.DEFAULT, DateFormat.DEFAULT)
.format(new Date(expiration)));
}
saveSettingsLocked(userHandle);
// in case this is the first one
setExpirationAlarmCheckLocked(mContext, getUserData(userHandle));
}
}
/**
* 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, int userHandle) {
if (!mHasFeature) {
return 0L;
}
enforceCrossUserPermission(userHandle);
synchronized (this) {
long timeout = 0L;
if (who != null) {
ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle);
return admin != null ? admin.passwordExpirationTimeout : timeout;
}
List<UserInfo> profiles = mUserManager.getProfiles(userHandle);
for (UserInfo userInfo : profiles) {
DevicePolicyData policy = getUserData(userInfo.getUserHandle().getIdentifier());
final int N = policy.mAdminList.size();
for (int i = 0; i < N; i++) {
ActiveAdmin admin = policy.mAdminList.get(i);
if (timeout == 0L || (admin.passwordExpirationTimeout != 0L
&& timeout > admin.passwordExpirationTimeout)) {
timeout = admin.passwordExpirationTimeout;
}
}
}
return timeout;
}
}
@Override
public boolean addCrossProfileWidgetProvider(ComponentName admin, String packageName) {
ActiveAdmin activeAdmin = getActiveAdminForCallerLocked(admin,
DeviceAdminInfo.USES_POLICY_PROFILE_OWNER);
if (activeAdmin.crossProfileWidgetProviders == null) {
activeAdmin.crossProfileWidgetProviders = new ArrayList<>();
}
if (activeAdmin.crossProfileWidgetProviders.add(packageName)) {
saveSettingsLocked(UserHandle.getCallingUserId());
return true;
}
return false;
}
@Override
public boolean removeCrossProfileWidgetProvider(ComponentName admin, String packageName) {
ActiveAdmin activeAdmin = getActiveAdminForCallerLocked(admin,
DeviceAdminInfo.USES_POLICY_PROFILE_OWNER);
if (activeAdmin.crossProfileWidgetProviders == null) {
return false;
}
if (activeAdmin.crossProfileWidgetProviders.remove(packageName)) {
saveSettingsLocked(UserHandle.getCallingUserId());
return true;
}
return false;
}
@Override
public List<String> getCrossProfileWidgetProviders(ComponentName admin) {
ActiveAdmin activeAdmin = getActiveAdminForCallerLocked(admin,
DeviceAdminInfo.USES_POLICY_PROFILE_OWNER);
if (activeAdmin.crossProfileWidgetProviders == null
|| activeAdmin.crossProfileWidgetProviders.isEmpty()) {
return null;
}
if (Binder.getCallingUid() == Process.myUid()) {
return new ArrayList<>(activeAdmin.crossProfileWidgetProviders);
} else {
return activeAdmin.crossProfileWidgetProviders;
}
}
/**
* 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, int userHandle) {
long timeout = 0L;
if (who != null) {
ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle);
return admin != null ? admin.passwordExpirationDate : timeout;
}
List<UserInfo> profiles = mUserManager.getProfiles(userHandle);
for (UserInfo userInfo : profiles) {
DevicePolicyData policy = getUserData(userInfo.getUserHandle().getIdentifier());
final int N = policy.mAdminList.size();
for (int i = 0; i < N; i++) {
ActiveAdmin admin = policy.mAdminList.get(i);
if (timeout == 0L || (admin.passwordExpirationDate != 0
&& timeout > admin.passwordExpirationDate)) {
timeout = admin.passwordExpirationDate;
}
}
}
return timeout;
}
public long getPasswordExpiration(ComponentName who, int userHandle) {
if (!mHasFeature) {
return 0L;
}
enforceCrossUserPermission(userHandle);
synchronized (this) {
return getPasswordExpirationLocked(who, userHandle);
}
}
public void setPasswordMinimumUpperCase(ComponentName who, int length, int userHandle) {
if (!mHasFeature) {
return;
}
enforceCrossUserPermission(userHandle);
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(userHandle);
}
}
}
public int getPasswordMinimumUpperCase(ComponentName who, int userHandle) {
if (!mHasFeature) {
return 0;
}
enforceCrossUserPermission(userHandle);
synchronized (this) {
int length = 0;
if (who != null) {
ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle);
return admin != null ? admin.minimumPasswordUpperCase : length;
}
// Return strictest policy for this user and profiles that are visible from this user.
List<UserInfo> profiles = mUserManager.getProfiles(userHandle);
for (UserInfo userInfo : profiles) {
DevicePolicyData policy = getUserData(userInfo.getUserHandle().getIdentifier());
final int N = policy.mAdminList.size();
for (int i=0; i<N; i++) {
ActiveAdmin admin = policy.mAdminList.get(i);
if (length < admin.minimumPasswordUpperCase) {
length = admin.minimumPasswordUpperCase;
}
}
}
return length;
}
}
public void setPasswordMinimumLowerCase(ComponentName who, int length, int userHandle) {
enforceCrossUserPermission(userHandle);
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(userHandle);
}
}
}
public int getPasswordMinimumLowerCase(ComponentName who, int userHandle) {
if (!mHasFeature) {
return 0;
}
enforceCrossUserPermission(userHandle);
synchronized (this) {
int length = 0;
if (who != null) {
ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle);
return admin != null ? admin.minimumPasswordLowerCase : length;
}
// Return strictest policy for this user and profiles that are visible from this user.
List<UserInfo> profiles = mUserManager.getProfiles(userHandle);
for (UserInfo userInfo : profiles) {
DevicePolicyData policy = getUserData(userInfo.getUserHandle().getIdentifier());
final int N = policy.mAdminList.size();
for (int i=0; i<N; i++) {
ActiveAdmin admin = policy.mAdminList.get(i);
if (length < admin.minimumPasswordLowerCase) {
length = admin.minimumPasswordLowerCase;
}
}
}
return length;
}
}
public void setPasswordMinimumLetters(ComponentName who, int length, int userHandle) {
if (!mHasFeature) {
return;
}
enforceCrossUserPermission(userHandle);
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(userHandle);
}
}
}
public int getPasswordMinimumLetters(ComponentName who, int userHandle) {
if (!mHasFeature) {
return 0;
}
enforceCrossUserPermission(userHandle);
synchronized (this) {
int length = 0;
if (who != null) {
ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle);
return admin != null ? admin.minimumPasswordLetters : length;
}
// Return strictest policy for this user and profiles that are visible from this user.
List<UserInfo> profiles = mUserManager.getProfiles(userHandle);
for (UserInfo userInfo : profiles) {
DevicePolicyData policy = getUserData(userInfo.getUserHandle().getIdentifier());
final int N = policy.mAdminList.size();
for (int i=0; i<N; i++) {
ActiveAdmin admin = policy.mAdminList.get(i);
if (length < admin.minimumPasswordLetters) {
length = admin.minimumPasswordLetters;
}
}
}
return length;
}
}
public void setPasswordMinimumNumeric(ComponentName who, int length, int userHandle) {
if (!mHasFeature) {
return;
}
enforceCrossUserPermission(userHandle);
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(userHandle);
}
}
}
public int getPasswordMinimumNumeric(ComponentName who, int userHandle) {
if (!mHasFeature) {
return 0;
}
enforceCrossUserPermission(userHandle);
synchronized (this) {
int length = 0;
if (who != null) {
ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle);
return admin != null ? admin.minimumPasswordNumeric : length;
}
// Return strictest policy for this user and profiles that are visible from this user.
List<UserInfo> profiles = mUserManager.getProfiles(userHandle);
for (UserInfo userInfo : profiles) {
DevicePolicyData policy = getUserData(userInfo.getUserHandle().getIdentifier());
final int N = policy.mAdminList.size();
for (int i = 0; i < N; i++) {
ActiveAdmin admin = policy.mAdminList.get(i);
if (length < admin.minimumPasswordNumeric) {
length = admin.minimumPasswordNumeric;
}
}
}
return length;
}
}
public void setPasswordMinimumSymbols(ComponentName who, int length, int userHandle) {
if (!mHasFeature) {
return;
}
enforceCrossUserPermission(userHandle);
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(userHandle);
}
}
}
public int getPasswordMinimumSymbols(ComponentName who, int userHandle) {
if (!mHasFeature) {
return 0;
}
enforceCrossUserPermission(userHandle);
synchronized (this) {
int length = 0;
if (who != null) {
ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle);
return admin != null ? admin.minimumPasswordSymbols : length;
}
// Return strictest policy for this user and profiles that are visible from this user.
List<UserInfo> profiles = mUserManager.getProfiles(userHandle);
for (UserInfo userInfo : profiles) {
DevicePolicyData policy = getUserData(userInfo.getUserHandle().getIdentifier());
final int N = policy.mAdminList.size();
for (int i=0; i<N; i++) {
ActiveAdmin admin = policy.mAdminList.get(i);
if (length < admin.minimumPasswordSymbols) {
length = admin.minimumPasswordSymbols;
}
}
}
return length;
}
}
public void setPasswordMinimumNonLetter(ComponentName who, int length, int userHandle) {
if (!mHasFeature) {
return;
}
enforceCrossUserPermission(userHandle);
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(userHandle);
}
}
}
public int getPasswordMinimumNonLetter(ComponentName who, int userHandle) {
if (!mHasFeature) {
return 0;
}
enforceCrossUserPermission(userHandle);
synchronized (this) {
int length = 0;
if (who != null) {
ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle);
return admin != null ? admin.minimumPasswordNonLetter : length;
}
// Return strictest policy for this user and profiles that are visible from this user.
List<UserInfo> profiles = mUserManager.getProfiles(userHandle);
for (UserInfo userInfo : profiles) {
DevicePolicyData policy = getUserData(userInfo.getUserHandle().getIdentifier());
final int N = policy.mAdminList.size();
for (int i=0; i<N; i++) {
ActiveAdmin admin = policy.mAdminList.get(i);
if (length < admin.minimumPasswordNonLetter) {
length = admin.minimumPasswordNonLetter;
}
}
}
return length;
}
}
public boolean isActivePasswordSufficient(int userHandle) {
if (!mHasFeature) {
return true;
}
enforceCrossUserPermission(userHandle);
synchronized (this) {
// The active password is stored in the user that runs the launcher
// If the user this is called from is part of a profile group, that is the parent
// of the group.
UserInfo parent = getProfileParent(userHandle);
int id = parent == null ? userHandle : parent.id;
DevicePolicyData policy = getUserData(id);
// 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 (policy.mActivePasswordQuality < getPasswordQuality(null, userHandle)
|| policy.mActivePasswordLength < getPasswordMinimumLength(null, userHandle)) {
return false;
}
if (policy.mActivePasswordQuality != DevicePolicyManager.PASSWORD_QUALITY_COMPLEX) {
return true;
}
return policy.mActivePasswordUpperCase >= getPasswordMinimumUpperCase(null, userHandle)
&& policy.mActivePasswordLowerCase >= getPasswordMinimumLowerCase(null, userHandle)
&& policy.mActivePasswordLetters >= getPasswordMinimumLetters(null, userHandle)
&& policy.mActivePasswordNumeric >= getPasswordMinimumNumeric(null, userHandle)
&& policy.mActivePasswordSymbols >= getPasswordMinimumSymbols(null, userHandle)
&& policy.mActivePasswordNonLetter >= getPasswordMinimumNonLetter(null, userHandle);
}
}
public int getCurrentFailedPasswordAttempts(int userHandle) {
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);
// The active password is stored in the parent.
DevicePolicyData policy = getUserData(getProfileParent(userHandle).id);
return policy.mFailedPasswordAttempts;
}
}
public void setMaximumFailedPasswordsForWipe(ComponentName who, int num, int userHandle) {
if (!mHasFeature) {
return;
}
enforceCrossUserPermission(userHandle);
synchronized (this) {
if (who == null) {
throw new NullPointerException("ComponentName is null");
}
// 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(userHandle);
}
}
}
public int getMaximumFailedPasswordsForWipe(ComponentName who, int userHandle) {
if (!mHasFeature) {
return 0;
}
enforceCrossUserPermission(userHandle);
synchronized (this) {
ActiveAdmin admin = (who != null) ? getActiveAdminUncheckedLocked(who, userHandle)
: getAdminWithMinimumFailedPasswordsForWipeLocked(userHandle);
return admin != null ? admin.maximumFailedPasswordsForWipe : 0;
}
}
/**
* Returns the admin with the strictest policy on maximum failed passwords for this user and all
* profiles that are visible from this user. If the policy for the primary and any other profile
* are equal, it returns the admin for the primary profile.
* Returns {@code null} if none of them have that policy set.
*/
private ActiveAdmin getAdminWithMinimumFailedPasswordsForWipeLocked(int userHandle) {
int count = 0;
ActiveAdmin strictestAdmin = null;
for (UserInfo userInfo : mUserManager.getProfiles(userHandle)) {
DevicePolicyData policy = getUserData(userInfo.getUserHandle().getIdentifier());
for (ActiveAdmin admin : policy.mAdminList) {
if (admin.maximumFailedPasswordsForWipe ==
ActiveAdmin.DEF_MAXIMUM_FAILED_PASSWORDS_FOR_WIPE) {
continue; // No max number of failed passwords policy set for this profile.
}
// We always favor the primary profile if several profiles have the same value set.
if (count == 0 ||
count > admin.maximumFailedPasswordsForWipe ||
(userInfo.isPrimary() && count >= admin.maximumFailedPasswordsForWipe)) {
count = admin.maximumFailedPasswordsForWipe;
strictestAdmin = admin;
}
}
}
return strictestAdmin;
}
public boolean resetPassword(String password, int flags, int userHandle) {
if (!mHasFeature) {
return false;
}
enforceCrossUserPermission(userHandle);
enforceNotManagedProfile(userHandle, "reset the password");
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, userHandle);
if (quality != DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED) {
int realQuality = LockPatternUtils.computePasswordQuality(password);
if (realQuality < quality
&& quality != DevicePolicyManager.PASSWORD_QUALITY_COMPLEX) {
Slog.w(LOG_TAG, "resetPassword: password quality 0x"
+ Integer.toHexString(realQuality)
+ " does not meet required quality 0x"
+ Integer.toHexString(quality));
return false;
}
quality = Math.max(realQuality, quality);
}
int length = getPasswordMinimumLength(null, userHandle);
if (password.length() < length) {
Slog.w(LOG_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, userHandle);
if(letters < neededLetters) {
Slog.w(LOG_TAG, "resetPassword: number of letters " + letters
+ " does not meet required number of letters " + neededLetters);
return false;
}
int neededNumbers = getPasswordMinimumNumeric(null, userHandle);
if (numbers < neededNumbers) {
Slog.w(LOG_TAG, "resetPassword: number of numerical digits " + numbers
+ " does not meet required number of numerical digits "
+ neededNumbers);
return false;
}
int neededLowerCase = getPasswordMinimumLowerCase(null, userHandle);
if (lowercase < neededLowerCase) {
Slog.w(LOG_TAG, "resetPassword: number of lowercase letters " + lowercase
+ " does not meet required number of lowercase letters "
+ neededLowerCase);
return false;
}
int neededUpperCase = getPasswordMinimumUpperCase(null, userHandle);
if (uppercase < neededUpperCase) {
Slog.w(LOG_TAG, "resetPassword: number of uppercase letters " + uppercase
+ " does not meet required number of uppercase letters "
+ neededUpperCase);
return false;
}
int neededSymbols = getPasswordMinimumSymbols(null, userHandle);
if (symbols < neededSymbols) {
Slog.w(LOG_TAG, "resetPassword: number of special symbols " + symbols
+ " does not meet required number of special symbols " + neededSymbols);
return false;
}
int neededNonLetter = getPasswordMinimumNonLetter(null, userHandle);
if (nonletter < neededNonLetter) {
Slog.w(LOG_TAG, "resetPassword: number of non-letter characters " + nonletter
+ " does not meet required number of non-letter characters "
+ neededNonLetter);
return false;
}
}
}
int callingUid = Binder.getCallingUid();
DevicePolicyData policy = getUserData(userHandle);
if (policy.mPasswordOwner >= 0 && policy.mPasswordOwner != callingUid) {
Slog.w(LOG_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, false, userHandle);
boolean requireEntry = (flags & DevicePolicyManager.RESET_PASSWORD_REQUIRE_ENTRY) != 0;
if (requireEntry) {
utils.requireCredentialEntry(UserHandle.USER_ALL);
}
synchronized (this) {
int newOwner = requireEntry ? callingUid : -1;
if (policy.mPasswordOwner != newOwner) {
policy.mPasswordOwner = newOwner;
saveSettingsLocked(userHandle);
}
}
} finally {
Binder.restoreCallingIdentity(ident);
}
return true;
}
public void setMaximumTimeToLock(ComponentName who, long timeMs, int userHandle) {
if (!mHasFeature) {
return;
}
enforceCrossUserPermission(userHandle);
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;
saveSettingsLocked(userHandle);
updateMaximumTimeToLockLocked(getUserData(userHandle));
}
}
}
void updateMaximumTimeToLockLocked(DevicePolicyData policy) {
long timeMs = getMaximumTimeToLock(null, policy.mUserHandle);
if (policy.mLastMaximumTimeToLock == timeMs) {
return;
}
long ident = Binder.clearCallingIdentity();
try {
if (timeMs <= 0) {
timeMs = Integer.MAX_VALUE;
} else {
// Make sure KEEP_SCREEN_ON is disabled, since that
// would allow bypassing of the maximum time to lock.
Settings.Global.putInt(mContext.getContentResolver(),
Settings.Global.STAY_ON_WHILE_PLUGGED_IN, 0);
}
policy.mLastMaximumTimeToLock = timeMs;
try {
getIPowerManager().setMaximumScreenOffTimeoutFromDeviceAdmin((int)timeMs);
} catch (RemoteException e) {
Slog.w(LOG_TAG, "Failure talking with power manager", e);
}
} finally {
Binder.restoreCallingIdentity(ident);
}
}
public long getMaximumTimeToLock(ComponentName who, int userHandle) {
if (!mHasFeature) {
return 0;
}
enforceCrossUserPermission(userHandle);
synchronized (this) {
long time = 0;
if (who != null) {
ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle);
return admin != null ? admin.maximumTimeToUnlock : time;
}
// Return strictest policy for this user and profiles that are visible from this user.
List<UserInfo> profiles = mUserManager.getProfiles(userHandle);
for (UserInfo userInfo : profiles) {
DevicePolicyData policy = getUserData(userInfo.getUserHandle().getIdentifier());
final int N = policy.mAdminList.size();
for (int i=0; i<N; i++) {
ActiveAdmin admin = policy.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() {
if (!mHasFeature) {
return;
}
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);
lockNowUnchecked();
}
}
private void lockNowUnchecked() {
long ident = Binder.clearCallingIdentity();
try {
// Power off the display
getIPowerManager().goToSleep(SystemClock.uptimeMillis(),
PowerManager.GO_TO_SLEEP_REASON_DEVICE_ADMIN, 0);
// Ensure the device is locked
new LockPatternUtils(mContext).requireCredentialEntry(UserHandle.USER_ALL);
getWindowManager().lockNow(null);
} catch (RemoteException e) {
} finally {
Binder.restoreCallingIdentity(ident);
}
}
private boolean isExtStorageEncrypted() {
String state = SystemProperties.get("vold.decrypt");
return !"".equals(state);
}
public boolean installCaCert(ComponentName who, byte[] certBuffer) throws RemoteException {
if (who == null) {
mContext.enforceCallingOrSelfPermission(MANAGE_CA_CERTIFICATES, null);
} else {
synchronized (this) {
getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER);
}
}
byte[] pemCert;
try {
X509Certificate cert = parseCert(certBuffer);
pemCert = Credentials.convertToPem(cert);
} catch (CertificateException ce) {
Log.e(LOG_TAG, "Problem converting cert", ce);
return false;
} catch (IOException ioe) {
Log.e(LOG_TAG, "Problem reading cert", ioe);
return false;
}
final UserHandle userHandle = new UserHandle(UserHandle.getCallingUserId());
final long id = Binder.clearCallingIdentity();
try {
final KeyChainConnection keyChainConnection = KeyChain.bindAsUser(mContext, userHandle);
try {
keyChainConnection.getService().installCaCertificate(pemCert);
return true;
} catch (RemoteException e) {
Log.e(LOG_TAG, "installCaCertsToKeyChain(): ", e);
} finally {
keyChainConnection.close();
}
} catch (InterruptedException e1) {
Log.w(LOG_TAG, "installCaCertsToKeyChain(): ", e1);
Thread.currentThread().interrupt();
} finally {
Binder.restoreCallingIdentity(id);
}
return false;
}
private static X509Certificate parseCert(byte[] certBuffer)
throws CertificateException, IOException {
CertificateFactory certFactory = CertificateFactory.getInstance("X.509");
return (X509Certificate) certFactory.generateCertificate(new ByteArrayInputStream(
certBuffer));
}
public void uninstallCaCert(ComponentName who, String alias) {
if (who == null) {
mContext.enforceCallingOrSelfPermission(MANAGE_CA_CERTIFICATES, null);
} else {
synchronized (this) {
getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER);
}
}
final UserHandle userHandle = new UserHandle(UserHandle.getCallingUserId());
final long id = Binder.clearCallingIdentity();
try {
final KeyChainConnection keyChainConnection = KeyChain.bindAsUser(mContext, userHandle);
try {
keyChainConnection.getService().deleteCaCertificate(alias);
} catch (RemoteException e) {
Log.e(LOG_TAG, "from CaCertUninstaller: ", e);
} finally {
keyChainConnection.close();
}
} catch (InterruptedException ie) {
Log.w(LOG_TAG, "CaCertUninstaller: ", ie);
Thread.currentThread().interrupt();
} finally {
Binder.restoreCallingIdentity(id);
}
}
void wipeDataLocked(int flags) {
// If the SD card is encrypted and non-removable, we have to force a wipe.
boolean forceExtWipe = !Environment.isExternalStorageRemovable() && isExtStorageEncrypted();
boolean wipeExtRequested = (flags&DevicePolicyManager.WIPE_EXTERNAL_STORAGE) != 0;
// Note: we can only do the wipe via ExternalStorageFormatter if the volume is not emulated.
if ((forceExtWipe || wipeExtRequested) && !Environment.isExternalStorageEmulated()) {
Intent intent = new Intent(ExternalStorageFormatter.FORMAT_AND_FACTORY_RESET);
intent.putExtra(ExternalStorageFormatter.EXTRA_ALWAYS_RESET, true);
intent.setComponent(ExternalStorageFormatter.COMPONENT_NAME);
mWakeLock.acquire(10000);
mContext.startService(intent);
} else {
try {
RecoverySystem.rebootWipeUserData(mContext);
} catch (IOException e) {
Slog.w(LOG_TAG, "Failed requesting data wipe", e);
} catch (SecurityException e) {
Slog.w(LOG_TAG, "Failed requesting data wipe", e);
}
}
}
public void wipeData(int flags, final int userHandle) {
if (!mHasFeature) {
return;
}
enforceCrossUserPermission(userHandle);
if ((flags & DevicePolicyManager.WIPE_EXTERNAL_STORAGE) != 0) {
enforceNotManagedProfile(userHandle, "wipe external storage");
}
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 {
wipeDeviceOrUserLocked(flags, userHandle);
} finally {
Binder.restoreCallingIdentity(ident);
}
}
}
private void wipeDeviceOrUserLocked(int flags, final int userHandle) {
if (userHandle == UserHandle.USER_OWNER) {
wipeDataLocked(flags);
} else {
mHandler.post(new Runnable() {
public void run() {
try {
ActivityManagerNative.getDefault().switchUser(UserHandle.USER_OWNER);
if (!mUserManager.removeUser(userHandle)) {
Slog.w(LOG_TAG, "Couldn't remove user " + userHandle);
}
} catch (RemoteException re) {
// Shouldn't happen
}
}
});
}
}
public void getRemoveWarning(ComponentName comp, final RemoteCallback result, int userHandle) {
if (!mHasFeature) {
return;
}
enforceCrossUserPermission(userHandle);
mContext.enforceCallingOrSelfPermission(
android.Manifest.permission.BIND_DEVICE_ADMIN, null);
synchronized (this) {
ActiveAdmin admin = getActiveAdminUncheckedLocked(comp, userHandle);
if (admin == null) {
try {
result.sendResult(null);
} catch (RemoteException e) {
}
return;
}
Intent intent = new Intent(DeviceAdminReceiver.ACTION_DEVICE_ADMIN_DISABLE_REQUESTED);
intent.setFlags(Intent.FLAG_RECEIVER_FOREGROUND);
intent.setComponent(admin.info.getComponent());
mContext.sendOrderedBroadcastAsUser(intent, new UserHandle(userHandle),
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, int userHandle) {
if (!mHasFeature) {
return;
}
enforceCrossUserPermission(userHandle);
enforceNotManagedProfile(userHandle, "set the active password");
mContext.enforceCallingOrSelfPermission(
android.Manifest.permission.BIND_DEVICE_ADMIN, null);
DevicePolicyData p = getUserData(userHandle);
validateQualityConstant(quality);
synchronized (this) {
if (p.mActivePasswordQuality != quality || p.mActivePasswordLength != length
|| p.mFailedPasswordAttempts != 0 || p.mActivePasswordLetters != letters
|| p.mActivePasswordUpperCase != uppercase
|| p.mActivePasswordLowerCase != lowercase
|| p.mActivePasswordNumeric != numbers
|| p.mActivePasswordSymbols != symbols
|| p.mActivePasswordNonLetter != nonletter) {
long ident = Binder.clearCallingIdentity();
try {
p.mActivePasswordQuality = quality;
p.mActivePasswordLength = length;
p.mActivePasswordLetters = letters;
p.mActivePasswordLowerCase = lowercase;
p.mActivePasswordUpperCase = uppercase;
p.mActivePasswordNumeric = numbers;
p.mActivePasswordSymbols = symbols;
p.mActivePasswordNonLetter = nonletter;
p.mFailedPasswordAttempts = 0;
saveSettingsLocked(userHandle);
updatePasswordExpirationsLocked(userHandle);
setExpirationAlarmCheckLocked(mContext, p);
sendAdminCommandToSelfAndProfilesLocked(
DeviceAdminReceiver.ACTION_PASSWORD_CHANGED,
DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD, userHandle);
} finally {
Binder.restoreCallingIdentity(ident);
}
}
}
}
/**
* Called any time the device password is updated. Resets all password expiration clocks.
*/
private void updatePasswordExpirationsLocked(int userHandle) {
List<UserInfo> profiles = mUserManager.getProfiles(userHandle);
for (UserInfo userInfo : profiles) {
int profileId = userInfo.getUserHandle().getIdentifier();
DevicePolicyData policy = getUserData(profileId);
final int N = policy.mAdminList.size();
if (N > 0) {
for (int i=0; i<N; i++) {
ActiveAdmin admin = policy.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(profileId);
}
}
public void reportFailedPasswordAttempt(int userHandle) {
enforceCrossUserPermission(userHandle);
enforceNotManagedProfile(userHandle, "report failed password attempt");
mContext.enforceCallingOrSelfPermission(
android.Manifest.permission.BIND_DEVICE_ADMIN, null);
synchronized (this) {
DevicePolicyData policy = getUserData(userHandle);
long ident = Binder.clearCallingIdentity();
try {
policy.mFailedPasswordAttempts++;
saveSettingsLocked(userHandle);
if (mHasFeature) {
ActiveAdmin strictestAdmin =
getAdminWithMinimumFailedPasswordsForWipeLocked(userHandle);
int max = strictestAdmin != null
? strictestAdmin.maximumFailedPasswordsForWipe : 0;
if (max > 0 && policy.mFailedPasswordAttempts >= max) {
// Wipe the user/profile associated with the policy that was violated. This
// is not necessarily calling user: if the policy that fired was from a
// managed profile rather than the main user profile, we wipe former only.
wipeDeviceOrUserLocked(0, strictestAdmin.getUserHandle().getIdentifier());
}
sendAdminCommandToSelfAndProfilesLocked(
DeviceAdminReceiver.ACTION_PASSWORD_FAILED,
DeviceAdminInfo.USES_POLICY_WATCH_LOGIN, userHandle);
}
} finally {
Binder.restoreCallingIdentity(ident);
}
}
}
public void reportSuccessfulPasswordAttempt(int userHandle) {
enforceCrossUserPermission(userHandle);
mContext.enforceCallingOrSelfPermission(
android.Manifest.permission.BIND_DEVICE_ADMIN, null);
synchronized (this) {
DevicePolicyData policy = getUserData(userHandle);
if (policy.mFailedPasswordAttempts != 0 || policy.mPasswordOwner >= 0) {
long ident = Binder.clearCallingIdentity();
try {
policy.mFailedPasswordAttempts = 0;
policy.mPasswordOwner = -1;
saveSettingsLocked(userHandle);
if (mHasFeature) {
sendAdminCommandToSelfAndProfilesLocked(
DeviceAdminReceiver.ACTION_PASSWORD_SUCCEEDED,
DeviceAdminInfo.USES_POLICY_WATCH_LOGIN, userHandle);
}
} finally {
Binder.restoreCallingIdentity(ident);
}
}
}
}
public ComponentName setGlobalProxy(ComponentName who, String proxySpec,
String exclusionList, int userHandle) {
if (!mHasFeature) {
return null;
}
enforceCrossUserPermission(userHandle);
synchronized(this) {
if (who == null) {
throw new NullPointerException("ComponentName is null");
}
// Only check if owner has set global proxy. We don't allow other users to set it.
DevicePolicyData policy = getUserData(UserHandle.USER_OWNER);
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 = policy.mAdminMap.keySet();
for (ComponentName component : compSet) {
ActiveAdmin ap = policy.mAdminMap.get(component);
if ((ap.specifiesGlobalProxy) && (!component.equals(who))) {
// Another admin already sets the global proxy
// Return it to the caller.
return component;
}
}
// If the user is not the owner, don't set the global proxy. Fail silently.
if (UserHandle.getCallingUserId() != UserHandle.USER_OWNER) {
Slog.w(LOG_TAG, "Only the owner is allowed to set the global proxy. User "
+ userHandle + " is not permitted.");
return null;
}
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();
try {
resetGlobalProxyLocked(policy);
} finally {
Binder.restoreCallingIdentity(origId);
}
return null;
}
}
public ComponentName getGlobalProxyAdmin(int userHandle) {
if (!mHasFeature) {
return null;
}
enforceCrossUserPermission(userHandle);
synchronized(this) {
DevicePolicyData policy = getUserData(UserHandle.USER_OWNER);
// Scan through active admins and find if anyone has already
// set the global proxy.
final int N = policy.mAdminList.size();
for (int i = 0; i < N; i++) {
ActiveAdmin ap = policy.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;
}
public void setRecommendedGlobalProxy(ComponentName who, ProxyInfo proxyInfo) {
synchronized (this) {
getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER);
}
long token = Binder.clearCallingIdentity();
try {
ConnectivityManager connectivityManager = (ConnectivityManager)
mContext.getSystemService(Context.CONNECTIVITY_SERVICE);
connectivityManager.setGlobalProxy(proxyInfo);
} finally {
Binder.restoreCallingIdentity(token);
}
}
private void resetGlobalProxyLocked(DevicePolicyData policy) {
final int N = policy.mAdminList.size();
for (int i = 0; i < N; i++) {
ActiveAdmin ap = policy.mAdminList.get(i);
if (ap.specifiesGlobalProxy) {
saveGlobalProxyLocked(ap.globalProxySpec, ap.globalProxyExclusionList);
return;
}
}
// No device admins defining global proxies - reset global proxy settings to none
saveGlobalProxyLocked(null, null);
}
private void saveGlobalProxyLocked(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();
ProxyInfo proxyProperties = new ProxyInfo(data[0], proxyPort, exclusionList);
if (!proxyProperties.isValid()) {
Slog.e(LOG_TAG, "Invalid proxy properties, ignoring: " + proxyProperties.toString());
return;
}
Settings.Global.putString(res, Settings.Global.GLOBAL_HTTP_PROXY_HOST, data[0]);
Settings.Global.putInt(res, Settings.Global.GLOBAL_HTTP_PROXY_PORT, proxyPort);
Settings.Global.putString(res, Settings.Global.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, int userHandle) {
if (!mHasFeature) {
return DevicePolicyManager.ENCRYPTION_STATUS_UNSUPPORTED;
}
enforceCrossUserPermission(userHandle);
synchronized (this) {
// Check for permissions
if (who == null) {
throw new NullPointerException("ComponentName is null");
}
// Only owner can set storage encryption
if (userHandle != UserHandle.USER_OWNER
|| UserHandle.getCallingUserId() != UserHandle.USER_OWNER) {
Slog.w(LOG_TAG, "Only owner is allowed to set storage encryption. User "
+ UserHandle.getCallingUserId() + " is not permitted.");
return 0;
}
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(userHandle);
}
DevicePolicyData policy = getUserData(UserHandle.USER_OWNER);
// (2) Compute "max" for all admins
boolean newRequested = false;
final int N = policy.mAdminList.size();
for (int i = 0; i < N; i++) {
newRequested |= policy.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, int userHandle) {
if (!mHasFeature) {
return false;
}
enforceCrossUserPermission(userHandle);
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, userHandle);
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.
DevicePolicyData policy = getUserData(userHandle);
final int N = policy.mAdminList.size();
for (int i = 0; i < N; i++) {
if (policy.mAdminList.get(i).encryptionRequested) {
return true;
}
}
return false;
}
}
/**
* Get the current encryption status of the device.
*/
public int getStorageEncryptionStatus(int userHandle) {
if (!mHasFeature) {
// Ok to return current status.
}
enforceCrossUserPermission(userHandle);
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) {
}
/**
* Set whether the screen capture is disabled for the user managed by the specified admin.
*/
public void setScreenCaptureDisabled(ComponentName who, int userHandle, boolean disabled) {
if (!mHasFeature) {
return;
}
synchronized (this) {
if (who == null) {
throw new NullPointerException("ComponentName is null");
}
ActiveAdmin ap = getActiveAdminForCallerLocked(who,
DeviceAdminInfo.USES_POLICY_PROFILE_OWNER);
if (ap.disableScreenCapture != disabled) {
ap.disableScreenCapture = disabled;
saveSettingsLocked(userHandle);
updateScreenCaptureDisabledInWindowManager(userHandle, disabled);
}
}
}
/**
* Returns whether or not screen capture is disabled for a given admin, or disabled for any
* active admin (if given admin is null).
*/
public boolean getScreenCaptureDisabled(ComponentName who, int userHandle) {
if (!mHasFeature) {
return false;
}
synchronized (this) {
if (who != null) {
ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle);
return (admin != null) ? admin.disableScreenCapture : false;
}
DevicePolicyData policy = getUserData(userHandle);
final int N = policy.mAdminList.size();
for (int i = 0; i < N; i++) {
ActiveAdmin admin = policy.mAdminList.get(i);
if (admin.disableScreenCapture) {
return true;
}
}
return false;
}
}
private void updateScreenCaptureDisabledInWindowManager(int userHandle, boolean disabled) {
long ident = Binder.clearCallingIdentity();
try {
getWindowManager().setScreenCaptureDisabled(userHandle, disabled);
} catch (RemoteException e) {
Log.w(LOG_TAG, "Unable to notify WindowManager.", e);
} finally {
Binder.restoreCallingIdentity(ident);
}
}
/**
* 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, int userHandle) {
if (!mHasFeature) {
return;
}
enforceCrossUserPermission(userHandle);
enforceNotManagedProfile(userHandle, "enable/disable cameras");
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(userHandle);
}
syncDeviceCapabilitiesLocked(getUserData(userHandle));
}
}
/**
* Gets whether or not all device cameras are disabled for a given admin, or disabled for any
* active admins.
*/
public boolean getCameraDisabled(ComponentName who, int userHandle) {
if (!mHasFeature) {
return false;
}
synchronized (this) {
if (who != null) {
ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle);
return (admin != null) ? admin.disableCamera : false;
}
DevicePolicyData policy = getUserData(userHandle);
// Determine whether or not the device camera is disabled for any active admins.
final int N = policy.mAdminList.size();
for (int i = 0; i < N; i++) {
ActiveAdmin admin = policy.mAdminList.get(i);
if (admin.disableCamera) {
return true;
}
}
return false;
}
}
/**
* Selectively disable keyguard features.
*/
public void setKeyguardDisabledFeatures(ComponentName who, int which, int userHandle) {
if (!mHasFeature) {
return;
}
enforceCrossUserPermission(userHandle);
enforceNotManagedProfile(userHandle, "disable keyguard features");
synchronized (this) {
if (who == null) {
throw new NullPointerException("ComponentName is null");
}
ActiveAdmin ap = getActiveAdminForCallerLocked(who,
DeviceAdminInfo.USES_POLICY_DISABLE_KEYGUARD_FEATURES);
if (ap.disabledKeyguardFeatures != which) {
ap.disabledKeyguardFeatures = which;
saveSettingsLocked(userHandle);
}
syncDeviceCapabilitiesLocked(getUserData(userHandle));
}
}
/**
* Gets the disabled state for features in keyguard for the given admin,
* or the aggregate of all active admins if who is null.
*/
public int getKeyguardDisabledFeatures(ComponentName who, int userHandle) {
if (!mHasFeature) {
return 0;
}
enforceCrossUserPermission(userHandle);
synchronized (this) {
if (who != null) {
ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle);
return (admin != null) ? admin.disabledKeyguardFeatures : 0;
}
// Determine which keyguard features are disabled for any active admins.
DevicePolicyData policy = getUserData(userHandle);
final int N = policy.mAdminList.size();
int which = 0;
for (int i = 0; i < N; i++) {
ActiveAdmin admin = policy.mAdminList.get(i);
which |= admin.disabledKeyguardFeatures;
}
return which;
}
}
@Override
public boolean setDeviceOwner(String packageName, String ownerName) {
if (!mHasFeature) {
return false;
}
if (packageName == null
|| !DeviceOwner.isInstalled(packageName, mContext.getPackageManager())) {
throw new IllegalArgumentException("Invalid package name " + packageName
+ " for device owner");
}
synchronized (this) {
if (isDeviceProvisioned()) {
throw new IllegalStateException(
"Trying to set device owner but device is already provisioned.");
}
if (mDeviceOwner != null && mDeviceOwner.hasDeviceOwner()) {
throw new IllegalStateException(
"Trying to set device owner but device owner is already set.");
}
if (mDeviceOwner == null) {
// Device owner is not set and does not exist, set it.
mDeviceOwner = DeviceOwner.createWithDeviceOwner(packageName, ownerName);
mDeviceOwner.writeOwnerFile();
return true;
} else {
// Device owner is not set but a profile owner exists, update Device owner state.
mDeviceOwner.setDeviceOwner(packageName, ownerName);
mDeviceOwner.writeOwnerFile();
return true;
}
}
}
@Override
public boolean isDeviceOwner(String packageName) {
if (!mHasFeature) {
return false;
}
synchronized (this) {
return mDeviceOwner != null
&& mDeviceOwner.hasDeviceOwner()
&& mDeviceOwner.getDeviceOwnerPackageName().equals(packageName);
}
}
@Override
public String getDeviceOwner() {
if (!mHasFeature) {
return null;
}
synchronized (this) {
if (mDeviceOwner != null && mDeviceOwner.hasDeviceOwner()) {
return mDeviceOwner.getDeviceOwnerPackageName();
}
}
return null;
}
@Override
public String getDeviceOwnerName() {
if (!mHasFeature) {
return null;
}
mContext.enforceCallingOrSelfPermission(android.Manifest.permission.MANAGE_USERS, null);
synchronized (this) {
if (mDeviceOwner != null) {
return mDeviceOwner.getDeviceOwnerName();
}
}
return null;
}
@Override
public void clearDeviceOwner(String packageName) {
if (packageName == null) {
throw new NullPointerException("packageName is null");
}
try {
int uid = mContext.getPackageManager().getPackageUid(packageName, 0);
if (uid != Binder.getCallingUid()) {
throw new SecurityException("Invalid packageName");
}
} catch (NameNotFoundException e) {
throw new SecurityException(e);
}
if (!isDeviceOwner(packageName)) {
throw new SecurityException("clearDeviceOwner can only be called by the device owner");
}
synchronized (this) {
long ident = Binder.clearCallingIdentity();
try {
mUserManager.setUserRestrictions(new Bundle(),
new UserHandle(UserHandle.USER_OWNER));
if (mDeviceOwner != null) {
mDeviceOwner.clearDeviceOwner();
mDeviceOwner.writeOwnerFile();
}
} finally {
Binder.restoreCallingIdentity(ident);
}
}
}
@Override
public boolean setProfileOwner(ComponentName who, String ownerName, int userHandle) {
if (!mHasFeature) {
return false;
}
mContext.enforceCallingOrSelfPermission(android.Manifest.permission.MANAGE_USERS, null);
if (mUserManager.getUserInfo(userHandle) == null) {
// User doesn't exist.
throw new IllegalArgumentException(
"Attempted to set profile owner for invalid userId: " + userHandle);
}
if (who == null
|| !DeviceOwner.isInstalledForUser(who.getPackageName(), userHandle)) {
throw new IllegalArgumentException("Component " + who
+ " not installed for userId:" + userHandle);
}
synchronized (this) {
// Only SYSTEM_UID can override the userSetupComplete
if (UserHandle.getAppId(Binder.getCallingUid()) != Process.SYSTEM_UID
&& isUserSetupComplete(userHandle)) {
throw new IllegalStateException(
"Trying to set profile owner but user is already set-up.");
}
if (mDeviceOwner == null) {
// Device owner state does not exist, create it.
mDeviceOwner = DeviceOwner.createWithProfileOwner(who, ownerName,
userHandle);
mDeviceOwner.writeOwnerFile();
return true;
} else {
// Device owner already exists, update it.
mDeviceOwner.setProfileOwner(who, ownerName, userHandle);
mDeviceOwner.writeOwnerFile();
return true;
}
}
}
@Override
public void clearProfileOwner(ComponentName who) {
if (!mHasFeature) {
return;
}
UserHandle callingUser = Binder.getCallingUserHandle();
// Check if this is the profile owner who is calling
getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER);
synchronized (this) {
long ident = Binder.clearCallingIdentity();
try {
mUserManager.setUserRestrictions(new Bundle(), callingUser);
if (mDeviceOwner != null) {
mDeviceOwner.removeProfileOwner(callingUser.getIdentifier());
mDeviceOwner.writeOwnerFile();
}
} finally {
Binder.restoreCallingIdentity(ident);
}
}
}
@Override
public boolean hasUserSetupCompleted() {
if (!mHasFeature) {
return true;
}
DevicePolicyData policy = getUserData(UserHandle.getCallingUserId());
// If policy is null, return true, else check if the setup has completed.
return policy == null || policy.mUserSetupComplete;
}
@Override
public void setProfileEnabled(ComponentName who) {
if (!mHasFeature) {
return;
}
synchronized (this) {
// Check for permissions
if (who == null) {
throw new NullPointerException("ComponentName is null");
}
// Check if this is the profile owner who is calling
getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER);
int userId = UserHandle.getCallingUserId();
long id = Binder.clearCallingIdentity();
try {
mUserManager.setUserEnabled(userId);
Intent intent = new Intent(Intent.ACTION_MANAGED_PROFILE_ADDED);
intent.putExtra(Intent.EXTRA_USER, new UserHandle(UserHandle.getCallingUserId()));
intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY |
Intent.FLAG_RECEIVER_FOREGROUND);
// TODO This should send to parent of profile (which is always owner at the moment).
mContext.sendBroadcastAsUser(intent, UserHandle.OWNER);
} finally {
restoreCallingIdentity(id);
}
}
}
@Override
public void setProfileName(ComponentName who, String profileName) {
int userId = UserHandle.getCallingUserId();
if (who == null) {
throw new NullPointerException("ComponentName is null");
}
// Check if this is the profile owner (includes device owner).
getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER);
long id = Binder.clearCallingIdentity();
try {
mUserManager.setUserName(userId, profileName);
} finally {
restoreCallingIdentity(id);
}
}
@Override
public ComponentName getProfileOwner(int userHandle) {
if (!mHasFeature) {
return null;
}
synchronized (this) {
if (mDeviceOwner != null) {
return mDeviceOwner.getProfileOwnerComponent(userHandle);
}
}
return null;
}
// Returns the active profile owner for this user or null if the current user has no
// profile owner.
private ActiveAdmin getProfileOwnerAdmin(int userHandle) {
ComponentName profileOwner =
mDeviceOwner != null ? mDeviceOwner.getProfileOwnerComponent(userHandle) : null;
if (profileOwner == null) {
return null;
}
DevicePolicyData policy = getUserData(userHandle);
final int n = policy.mAdminList.size();
for (int i = 0; i < n; i++) {
ActiveAdmin admin = policy.mAdminList.get(i);
if (profileOwner.equals(admin.info)) {
return admin;
}
}
return null;
}
@Override
public String getProfileOwnerName(int userHandle) {
if (!mHasFeature) {
return null;
}
mContext.enforceCallingOrSelfPermission(android.Manifest.permission.MANAGE_USERS, null);
synchronized (this) {
if (mDeviceOwner != null) {
return mDeviceOwner.getProfileOwnerName(userHandle);
}
}
return null;
}
private boolean isDeviceProvisioned() {
return Settings.Global.getInt(mContext.getContentResolver(),
Settings.Global.DEVICE_PROVISIONED, 0) > 0;
}
private boolean isUserSetupComplete(int userId) {
return Settings.Secure.getIntForUser(mContext.getContentResolver(),
Settings.Secure.USER_SETUP_COMPLETE, 0, userId) > 0;
}
private void enforceCrossUserPermission(int userHandle) {
if (userHandle < 0) {
throw new IllegalArgumentException("Invalid userId " + userHandle);
}
final int callingUid = Binder.getCallingUid();
if (userHandle == UserHandle.getUserId(callingUid)) return;
if (callingUid != Process.SYSTEM_UID && callingUid != 0) {
mContext.enforceCallingOrSelfPermission(
android.Manifest.permission.INTERACT_ACROSS_USERS_FULL, "Must be system or have"
+ " INTERACT_ACROSS_USERS_FULL permission");
}
}
private void enforceSystemProcess(String message) {
if (Binder.getCallingUid() != Process.SYSTEM_UID) {
throw new SecurityException(message);
}
}
private void enforceNotManagedProfile(int userHandle, String message) {
if(isManagedProfile(userHandle)) {
throw new SecurityException("You can not " + message + " for a managed profile. ");
}
}
private UserInfo getProfileParent(int userHandle) {
long ident = Binder.clearCallingIdentity();
try {
return mUserManager.getProfileParent(userHandle);
} finally {
Binder.restoreCallingIdentity(ident);
}
}
private boolean isManagedProfile(int userHandle) {
long ident = Binder.clearCallingIdentity();
try {
return mUserManager.getUserInfo(userHandle).isManagedProfile();
} finally {
Binder.restoreCallingIdentity(ident);
}
}
private void enableIfNecessary(String packageName, int userId) {
try {
IPackageManager ipm = AppGlobals.getPackageManager();
ApplicationInfo ai = ipm.getApplicationInfo(packageName,
PackageManager.GET_DISABLED_UNTIL_USED_COMPONENTS,
userId);
if (ai.enabledSetting
== PackageManager.COMPONENT_ENABLED_STATE_DISABLED_UNTIL_USED) {
ipm.setApplicationEnabledSetting(packageName,
PackageManager.COMPONENT_ENABLED_STATE_DEFAULT,
PackageManager.DONT_KILL_APP, userId, "DevicePolicyManager");
}
} catch (RemoteException e) {
}
}
@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:");
int userCount = mUserData.size();
for (int u = 0; u < userCount; u++) {
DevicePolicyData policy = getUserData(mUserData.keyAt(u));
p.println(" Enabled Device Admins (User " + policy.mUserHandle + "):");
final int N = policy.mAdminList.size();
for (int i=0; i<N; i++) {
ActiveAdmin ap = policy.mAdminList.get(i);
if (ap != null) {
pw.print(" "); pw.print(ap.info.getComponent().flattenToShortString());
pw.println(":");
ap.dump(" ", pw);
}
}
pw.println(" ");
pw.print(" mPasswordOwner="); pw.println(policy.mPasswordOwner);
}
}
}
@Override
public void addPersistentPreferredActivity(ComponentName who, IntentFilter filter,
ComponentName activity) {
synchronized (this) {
if (who == null) {
throw new NullPointerException("ComponentName is null");
}
getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER);
IPackageManager pm = AppGlobals.getPackageManager();
long id = Binder.clearCallingIdentity();
try {
pm.addPersistentPreferredActivity(filter, activity, UserHandle.getCallingUserId());
} catch (RemoteException re) {
// Shouldn't happen
} finally {
restoreCallingIdentity(id);
}
}
}
@Override
public void clearPackagePersistentPreferredActivities(ComponentName who, String packageName) {
synchronized (this) {
if (who == null) {
throw new NullPointerException("ComponentName is null");
}
getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER);
IPackageManager pm = AppGlobals.getPackageManager();
long id = Binder.clearCallingIdentity();
try {
pm.clearPackagePersistentPreferredActivities(packageName, UserHandle.getCallingUserId());
} catch (RemoteException re) {
// Shouldn't happen
} finally {
restoreCallingIdentity(id);
}
}
}
@Override
public void setApplicationRestrictions(ComponentName who, String packageName, Bundle settings) {
final UserHandle userHandle = new UserHandle(UserHandle.getCallingUserId());
synchronized (this) {
if (who == null) {
throw new NullPointerException("ComponentName is null");
}
getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER);
long id = Binder.clearCallingIdentity();
try {
mUserManager.setApplicationRestrictions(packageName, settings, userHandle);
} finally {
restoreCallingIdentity(id);
}
}
}
public void setTrustAgentFeaturesEnabled(ComponentName admin, ComponentName agent,
List<String>features, int userHandle) {
if (!mHasFeature) {
return;
}
enforceCrossUserPermission(userHandle);
enforceNotManagedProfile(userHandle, "manage trust agent features");
synchronized (this) {
if (admin == null) {
throw new NullPointerException("admin is null");
}
if (agent == null) {
throw new NullPointerException("agent is null");
}
ActiveAdmin ap = getActiveAdminForCallerLocked(admin,
DeviceAdminInfo.USES_POLICY_DISABLE_KEYGUARD_FEATURES);
ap.trustAgentFeatures.put(agent.flattenToString(), features);
saveSettingsLocked(userHandle);
syncDeviceCapabilitiesLocked(getUserData(userHandle));
}
}
public List<String> getTrustAgentFeaturesEnabled(ComponentName admin, ComponentName agent,
int userHandle) {
if (!mHasFeature) {
return null;
}
enforceCrossUserPermission(userHandle);
synchronized (this) {
if (agent == null) {
throw new NullPointerException("agent is null");
}
final String componentName = agent.flattenToString();
if (admin != null) {
final ActiveAdmin ap = getActiveAdminUncheckedLocked(admin, userHandle);
return (ap != null) ? ap.trustAgentFeatures.get(componentName) : null;
}
// Return strictest policy for this user and profiles that are visible from this user.
List<UserInfo> profiles = mUserManager.getProfiles(userHandle);
List<String> result = null;
for (UserInfo userInfo : profiles) {
DevicePolicyData policy = getUserData(userInfo.getUserHandle().getIdentifier());
final int N = policy.mAdminList.size();
for (int i=0; i<N; i++) {
ActiveAdmin ap = policy.mAdminList.get(i);
// Compute the intersection of all features for active admins that disable
// trust agents:
if ((ap.disabledKeyguardFeatures
& DevicePolicyManager.KEYGUARD_DISABLE_TRUST_AGENTS) != 0) {
final List<String> features = ap.trustAgentFeatures.get(componentName);
if (result == null) {
if (features == null || features.size() == 0) {
result = new ArrayList<String>();
Slog.w(LOG_TAG, "admin " + ap.info.getPackageName()
+ " has null trust agent feature set; all will be disabled");
} else {
result = new ArrayList<String>(features.size());
result.addAll(features);
}
} else {
result.retainAll(features);
}
}
}
}
return result;
}
}
@Override
public void setRestrictionsProvider(ComponentName who, ComponentName permissionProvider) {
synchronized (this) {
if (who == null) {
throw new NullPointerException("ComponentName is null");
}
getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER);
int userHandle = UserHandle.getCallingUserId();
DevicePolicyData userData = getUserData(userHandle);
userData.mRestrictionsProvider = permissionProvider;
saveSettingsLocked(userHandle);
}
}
@Override
public ComponentName getRestrictionsProvider(int userHandle) {
synchronized (this) {
if (Binder.getCallingUid() != Process.SYSTEM_UID) {
throw new SecurityException("Only the system can query the permission provider");
}
DevicePolicyData userData = getUserData(userHandle);
return userData != null ? userData.mRestrictionsProvider : null;
}
}
public void addCrossProfileIntentFilter(ComponentName who, IntentFilter filter, int flags) {
int callingUserId = UserHandle.getCallingUserId();
synchronized (this) {
if (who == null) {
throw new NullPointerException("ComponentName is null");
}
getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER);
IPackageManager pm = AppGlobals.getPackageManager();
long id = Binder.clearCallingIdentity();
try {
if ((flags & DevicePolicyManager.FLAG_PARENT_CAN_ACCESS_MANAGED) != 0) {
pm.addCrossProfileIntentFilter(filter, who.getPackageName(),
mContext.getUserId(), callingUserId, UserHandle.USER_OWNER, 0);
}
if ((flags & DevicePolicyManager.FLAG_MANAGED_CAN_ACCESS_PARENT) != 0) {
pm.addCrossProfileIntentFilter(filter, who.getPackageName(),
mContext.getUserId(), UserHandle.USER_OWNER, callingUserId, 0);
}
} catch (RemoteException re) {
// Shouldn't happen
} finally {
restoreCallingIdentity(id);
}
}
}
public void clearCrossProfileIntentFilters(ComponentName who) {
int callingUserId = UserHandle.getCallingUserId();
synchronized (this) {
if (who == null) {
throw new NullPointerException("ComponentName is null");
}
getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER);
IPackageManager pm = AppGlobals.getPackageManager();
long id = Binder.clearCallingIdentity();
try {
pm.clearCrossProfileIntentFilters(callingUserId, who.getPackageName(),
callingUserId);
// If we want to support multiple managed profiles, we will have to only remove
// those that have callingUserId as their target.
pm.clearCrossProfileIntentFilters(UserHandle.USER_OWNER, who.getPackageName(),
callingUserId);
} catch (RemoteException re) {
// Shouldn't happen
} finally {
restoreCallingIdentity(id);
}
}
}
@Override
public UserHandle createUser(ComponentName who, String name) {
synchronized (this) {
if (who == null) {
throw new NullPointerException("ComponentName is null");
}
getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER);
long id = Binder.clearCallingIdentity();
try {
UserInfo userInfo = mUserManager.createUser(name, 0 /* flags */);
if (userInfo != null) {
return userInfo.getUserHandle();
}
return null;
} finally {
restoreCallingIdentity(id);
}
}
}
@Override
public UserHandle createAndInitializeUser(ComponentName who, String name,
String ownerName, ComponentName profileOwnerComponent, Bundle adminExtras) {
UserHandle user = createUser(who, name);
long id = Binder.clearCallingIdentity();
try {
String profileOwnerPkg = profileOwnerComponent.getPackageName();
final IPackageManager ipm = AppGlobals.getPackageManager();
IActivityManager activityManager = ActivityManagerNative.getDefault();
try {
// Install the profile owner if not present.
if (!ipm.isPackageAvailable(profileOwnerPkg, user.getIdentifier())) {
ipm.installExistingPackageAsUser(profileOwnerPkg, user.getIdentifier());
}
// Start user in background.
activityManager.startUserInBackground(user.getIdentifier());
} catch (RemoteException e) {
Slog.e(LOG_TAG, "Failed to make remote calls for configureUser", e);
}
setActiveAdmin(profileOwnerComponent, true, user.getIdentifier(), adminExtras);
setProfileOwner(profileOwnerComponent, ownerName, user.getIdentifier());
return user;
} finally {
restoreCallingIdentity(id);
}
}
@Override
public boolean removeUser(ComponentName who, UserHandle userHandle) {
synchronized (this) {
if (who == null) {
throw new NullPointerException("ComponentName is null");
}
getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER);
long id = Binder.clearCallingIdentity();
try {
return mUserManager.removeUser(userHandle.getIdentifier());
} finally {
restoreCallingIdentity(id);
}
}
}
@Override
public boolean switchUser(ComponentName who, UserHandle userHandle) {
synchronized (this) {
if (who == null) {
throw new NullPointerException("ComponentName is null");
}
getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER);
long id = Binder.clearCallingIdentity();
try {
int userId = UserHandle.USER_OWNER;
if (userHandle != null) {
userId = userHandle.getIdentifier();
}
return ActivityManagerNative.getDefault().switchUser(userId);
} catch (RemoteException e) {
Log.e(LOG_TAG, "Couldn't switch user", e);
return false;
} finally {
restoreCallingIdentity(id);
}
}
}
@Override
public Bundle getApplicationRestrictions(ComponentName who, String packageName) {
final UserHandle userHandle = new UserHandle(UserHandle.getCallingUserId());
synchronized (this) {
if (who == null) {
throw new NullPointerException("ComponentName is null");
}
getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER);
long id = Binder.clearCallingIdentity();
try {
return mUserManager.getApplicationRestrictions(packageName, userHandle);
} finally {
restoreCallingIdentity(id);
}
}
}
@Override
public void setUserRestriction(ComponentName who, String key, boolean enabled) {
final UserHandle userHandle = new UserHandle(UserHandle.getCallingUserId());
synchronized (this) {
if (who == null) {
throw new NullPointerException("ComponentName is null");
}
getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER);
long id = Binder.clearCallingIdentity();
try {
mUserManager.setUserRestriction(key, enabled, userHandle);
} finally {
restoreCallingIdentity(id);
}
}
}
@Override
public boolean setApplicationHidden(ComponentName who, String packageName,
boolean hidden) {
int callingUserId = UserHandle.getCallingUserId();
synchronized (this) {
if (who == null) {
throw new NullPointerException("ComponentName is null");
}
getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER);
long id = Binder.clearCallingIdentity();
try {
IPackageManager pm = AppGlobals.getPackageManager();
return pm.setApplicationHiddenSettingAsUser(packageName, hidden, callingUserId);
} catch (RemoteException re) {
// shouldn't happen
Slog.e(LOG_TAG, "Failed to setApplicationHiddenSetting", re);
} finally {
restoreCallingIdentity(id);
}
return false;
}
}
@Override
public int setApplicationsHidden(ComponentName who, Intent intent, boolean hidden) {
int callingUserId = UserHandle.getCallingUserId();
synchronized (this) {
if (who == null) {
throw new NullPointerException("ComponentName is null");
}
getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER);
long id = Binder.clearCallingIdentity();
try {
IPackageManager pm = AppGlobals.getPackageManager();
List<ResolveInfo> activitiesToEnable = pm.queryIntentActivities(intent,
intent.resolveTypeIfNeeded(mContext.getContentResolver()),
PackageManager.GET_DISABLED_COMPONENTS
| PackageManager.GET_UNINSTALLED_PACKAGES,
callingUserId);
if (DBG) Slog.d(LOG_TAG, "Enabling activities: " + activitiesToEnable);
int numberOfAppsUnhidden = 0;
if (activitiesToEnable != null) {
for (ResolveInfo info : activitiesToEnable) {
if (info.activityInfo != null) {
numberOfAppsUnhidden++;
pm.setApplicationHiddenSettingAsUser(info.activityInfo.packageName,
hidden, callingUserId);
}
}
}
return numberOfAppsUnhidden;
} catch (RemoteException re) {
// shouldn't happen
Slog.e(LOG_TAG, "Failed to setApplicationsHiddenSettingsWithIntent", re);
} finally {
restoreCallingIdentity(id);
}
return 0;
}
}
@Override
public boolean isApplicationHidden(ComponentName who, String packageName) {
int callingUserId = UserHandle.getCallingUserId();
synchronized (this) {
if (who == null) {
throw new NullPointerException("ComponentName is null");
}
getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER);
long id = Binder.clearCallingIdentity();
try {
IPackageManager pm = AppGlobals.getPackageManager();
return pm.getApplicationHiddenSettingAsUser(packageName, callingUserId);
} catch (RemoteException re) {
// shouldn't happen
Slog.e(LOG_TAG, "Failed to getApplicationHiddenSettingAsUser", re);
} finally {
restoreCallingIdentity(id);
}
return false;
}
}
@Override
public void enableSystemApp(ComponentName who, String packageName) {
synchronized (this) {
if (who == null) {
throw new NullPointerException("ComponentName is null");
}
// 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_PROFILE_OWNER);
int userId = UserHandle.getCallingUserId();
long id = Binder.clearCallingIdentity();
try {
UserManager um = UserManager.get(mContext);
if (!um.getUserInfo(userId).isManagedProfile()) {
throw new IllegalStateException(
"Only call this method from a managed profile.");
}
UserInfo primaryUser = um.getProfileParent(userId);
if (DBG) {
Slog.v(LOG_TAG, "installing " + packageName + " for "
+ userId);
}
IPackageManager pm = AppGlobals.getPackageManager();
if (!isSystemApp(pm, packageName, primaryUser.id)) {
throw new IllegalArgumentException("Only system apps can be enabled this way.");
}
// Install the app.
pm.installExistingPackageAsUser(packageName, userId);
} catch (RemoteException re) {
// shouldn't happen
Slog.wtf(LOG_TAG, "Failed to install " + packageName, re);
} finally {
restoreCallingIdentity(id);
}
}
}
@Override
public int enableSystemAppWithIntent(ComponentName who, Intent intent) {
synchronized (this) {
if (who == null) {
throw new NullPointerException("ComponentName is null");
}
// 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_PROFILE_OWNER);
int userId = UserHandle.getCallingUserId();
long id = Binder.clearCallingIdentity();
try {
UserManager um = UserManager.get(mContext);
if (!um.getUserInfo(userId).isManagedProfile()) {
throw new IllegalStateException(
"Only call this method from a managed profile.");
}
UserInfo primaryUser = um.getProfileParent(userId);
IPackageManager pm = AppGlobals.getPackageManager();
List<ResolveInfo> activitiesToEnable = pm.queryIntentActivities(intent,
intent.resolveTypeIfNeeded(mContext.getContentResolver()),
0, // no flags
primaryUser.id);
if (DBG) Slog.d(LOG_TAG, "Enabling system activities: " + activitiesToEnable);
int numberOfAppsInstalled = 0;
if (activitiesToEnable != null) {
for (ResolveInfo info : activitiesToEnable) {
if (info.activityInfo != null) {
if (!isSystemApp(pm, info.activityInfo.packageName, primaryUser.id)) {
throw new IllegalArgumentException(
"Only system apps can be enabled this way.");
}
numberOfAppsInstalled++;
pm.installExistingPackageAsUser(info.activityInfo.packageName, userId);
}
}
}
return numberOfAppsInstalled;
} catch (RemoteException e) {
// shouldn't happen
Slog.wtf(LOG_TAG, "Failed to resolve intent for: " + intent);
return 0;
} finally {
restoreCallingIdentity(id);
}
}
}
private boolean isSystemApp(IPackageManager pm, String packageName, int userId)
throws RemoteException {
ApplicationInfo appInfo = pm.getApplicationInfo(packageName, 0, userId);
return (appInfo.flags & ApplicationInfo.FLAG_SYSTEM) > 0;
}
@Override
public void setAccountManagementDisabled(ComponentName who, String accountType,
boolean disabled) {
if (!mHasFeature) {
return;
}
synchronized (this) {
if (who == null) {
throw new NullPointerException("ComponentName is null");
}
ActiveAdmin ap = getActiveAdminForCallerLocked(who,
DeviceAdminInfo.USES_POLICY_PROFILE_OWNER);
if (disabled) {
ap.accountTypesWithManagementDisabled.add(accountType);
} else {
ap.accountTypesWithManagementDisabled.remove(accountType);
}
saveSettingsLocked(UserHandle.getCallingUserId());
}
}
@Override
public String[] getAccountTypesWithManagementDisabled() {
return getAccountTypesWithManagementDisabledAsUser(UserHandle.getCallingUserId());
}
@Override
public String[] getAccountTypesWithManagementDisabledAsUser(int userId) {
enforceCrossUserPermission(userId);
if (!mHasFeature) {
return null;
}
synchronized (this) {
DevicePolicyData policy = getUserData(userId);
final int N = policy.mAdminList.size();
HashSet<String> resultSet = new HashSet<String>();
for (int i = 0; i < N; i++) {
ActiveAdmin admin = policy.mAdminList.get(i);
resultSet.addAll(admin.accountTypesWithManagementDisabled);
}
return resultSet.toArray(new String[resultSet.size()]);
}
}
@Override
public void setBlockUninstall(ComponentName who, String packageName, boolean blockUninstall) {
final int userId = UserHandle.getCallingUserId();
synchronized (this) {
if (who == null) {
throw new NullPointerException("ComponentName is null");
}
getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER);
long id = Binder.clearCallingIdentity();
try {
IPackageManager pm = AppGlobals.getPackageManager();
pm.setBlockUninstallForUser(packageName, blockUninstall, userId);
} catch (RemoteException re) {
// Shouldn't happen.
Slog.e(LOG_TAG, "Failed to setBlockUninstallForUser", re);
} finally {
restoreCallingIdentity(id);
}
}
}
@Override
public boolean getBlockUninstall(ComponentName who, String packageName) {
final int userId = UserHandle.getCallingUserId();
synchronized (this) {
if (who == null) {
throw new NullPointerException("ComponentName is null");
}
getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER);
long id = Binder.clearCallingIdentity();
try {
IPackageManager pm = AppGlobals.getPackageManager();
return pm.getBlockUninstallForUser(packageName, userId);
} catch (RemoteException re) {
// Shouldn't happen.
Slog.e(LOG_TAG, "Failed to getBlockUninstallForUser", re);
} finally {
restoreCallingIdentity(id);
}
}
return false;
}
@Override
public void setCrossProfileCallerIdDisabled(ComponentName who, boolean disabled) {
if (!mHasFeature) {
return;
}
synchronized (this) {
if (who == null) {
throw new NullPointerException("ComponentName is null");
}
ActiveAdmin admin = getActiveAdminForCallerLocked(who,
DeviceAdminInfo.USES_POLICY_PROFILE_OWNER);
if (admin.disableCallerId != disabled) {
admin.disableCallerId = disabled;
saveSettingsLocked(UserHandle.getCallingUserId());
}
}
}
@Override
public boolean getCrossProfileCallerIdDisabled(ComponentName who) {
if (!mHasFeature) {
return false;
}
synchronized (this) {
if (who == null) {
throw new NullPointerException("ComponentName is null");
}
ActiveAdmin admin = getActiveAdminForCallerLocked(who,
DeviceAdminInfo.USES_POLICY_PROFILE_OWNER);
return admin.disableCallerId;
}
}
@Override
public boolean getCrossProfileCallerIdDisabledForUser(int userId) {
// TODO: Should there be a check to make sure this relationship is within a profile group?
//enforceSystemProcess("getCrossProfileCallerIdDisabled can only be called by system");
synchronized (this) {
ActiveAdmin admin = getProfileOwnerAdmin(userId);
return (admin != null) ? admin.disableCallerId : false;
}
}
/**
* Sets which packages may enter lock task mode.
*
* This function can only be called by the device owner.
* @param components The list of components allowed to enter lock task mode.
*/
public void setLockTaskPackages(String[] packages) throws SecurityException {
// Get the package names of the caller.
int uid = Binder.getCallingUid();
String[] packageNames = mContext.getPackageManager().getPackagesForUid(uid);
synchronized (this) {
// Check whether any of the package name is the device owner.
for (int i=0; i<packageNames.length; i++) {
String packageName = packageNames[i];
int userHandle = UserHandle.getUserId(uid);
if (isDeviceOwner(packageName)) {
// If a package name is the device owner,
// we update the component list.
DevicePolicyData policy = getUserData(userHandle);
policy.mLockTaskPackages.clear();
if (packages != null) {
for (int j = 0; j < packages.length; j++) {
String pkg = packages[j];
policy.mLockTaskPackages.add(pkg);
}
}
// Store the settings persistently.
saveSettingsLocked(userHandle);
return;
}
}
}
throw new SecurityException();
}
/**
* This function returns the list of components allowed to start the task lock mode.
*/
public String[] getLockTaskPackages() {
synchronized (this) {
int userHandle = UserHandle.USER_OWNER;
DevicePolicyData policy = getUserData(userHandle);
return policy.mLockTaskPackages.toArray(new String[0]);
}
}
/**
* This function lets the caller know whether the given package is allowed to start the
* lock task mode.
* @param pkg The package to check
*/
public boolean isLockTaskPermitted(String pkg) {
// Get current user's devicepolicy
int uid = Binder.getCallingUid();
int userHandle = UserHandle.getUserId(uid);
DevicePolicyData policy = getUserData(userHandle);
synchronized (this) {
for (int i = 0; i < policy.mLockTaskPackages.size(); i++) {
String lockTaskPackage = policy.mLockTaskPackages.get(i);
// If the given package equals one of the packages stored our list,
// we allow this package to start lock task mode.
if (lockTaskPackage.equals(pkg)) {
return true;
}
}
}
return false;
}
@Override
public void notifyLockTaskModeChanged(boolean isEnabled, String pkg, int userHandle) {
if (Binder.getCallingUid() != Process.SYSTEM_UID) {
throw new SecurityException("notifyLockTaskModeChanged can only be called by system");
}
synchronized (this) {
final DevicePolicyData policy = getUserData(userHandle);
Bundle adminExtras = new Bundle();
adminExtras.putBoolean(DeviceAdminReceiver.EXTRA_LOCK_TASK_ENTERING, isEnabled);
adminExtras.putString(DeviceAdminReceiver.EXTRA_LOCK_TASK_PACKAGE, pkg);
for (ActiveAdmin admin : policy.mAdminList) {
boolean ownsDevice = isDeviceOwner(admin.info.getPackageName());
boolean ownsProfile = (getProfileOwner(userHandle) != null
&& getProfileOwner(userHandle).equals(admin.info.getPackageName()));
if (ownsDevice || ownsProfile) {
sendAdminCommandLocked(admin, DeviceAdminReceiver.ACTION_LOCK_TASK_CHANGED,
adminExtras, null);
}
}
}
}
@Override
public void setGlobalSetting(ComponentName who, String setting, String value) {
final ContentResolver contentResolver = mContext.getContentResolver();
synchronized (this) {
if (who == null) {
throw new NullPointerException("ComponentName is null");
}
getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER);
long id = Binder.clearCallingIdentity();
try {
Settings.Global.putString(contentResolver, setting, value);
} finally {
restoreCallingIdentity(id);
}
}
}
@Override
public void setSecureSetting(ComponentName who, String setting, String value) {
int callingUserId = UserHandle.getCallingUserId();
final ContentResolver contentResolver = mContext.getContentResolver();
synchronized (this) {
if (who == null) {
throw new NullPointerException("ComponentName is null");
}
getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER);
long id = Binder.clearCallingIdentity();
try {
Settings.Secure.putStringForUser(contentResolver, setting, value, callingUserId);
} finally {
restoreCallingIdentity(id);
}
}
}
@Override
public void setMasterVolumeMuted(ComponentName who, boolean on) {
final ContentResolver contentResolver = mContext.getContentResolver();
synchronized (this) {
if (who == null) {
throw new NullPointerException("ComponentName is null");
}
getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER);
IAudioService iAudioService = IAudioService.Stub.asInterface(
ServiceManager.getService(Context.AUDIO_SERVICE));
try{
iAudioService.setMasterMute(on, 0, who.getPackageName(), null);
} catch (RemoteException re) {
Slog.e(LOG_TAG, "Failed to setMasterMute", re);
}
}
}
@Override
public boolean isMasterVolumeMuted(ComponentName who) {
final ContentResolver contentResolver = mContext.getContentResolver();
synchronized (this) {
if (who == null) {
throw new NullPointerException("ComponentName is null");
}
getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER);
AudioManager audioManager =
(AudioManager) mContext.getSystemService(Context.AUDIO_SERVICE);
return audioManager.isMasterMute();
}
}
/**
* We need to update the internal state of whether a user has completed setup once. After
* that, we ignore any changes that reset the Settings.Secure.USER_SETUP_COMPLETE changes
* as we don't trust any apps that might try to reset it.
* <p>
* Unfortunately, we don't know which user's setup state was changed, so we write all of
* them.
*/
void updateUserSetupComplete() {
List<UserInfo> users = mUserManager.getUsers(true);
ContentResolver resolver = mContext.getContentResolver();
final int N = users.size();
for (int i = 0; i < N; i++) {
int userHandle = users.get(i).id;
if (Settings.Secure.getIntForUser(resolver, Settings.Secure.USER_SETUP_COMPLETE, 0,
userHandle) != 0) {
DevicePolicyData policy = getUserData(userHandle);
if (!policy.mUserSetupComplete) {
policy.mUserSetupComplete = true;
synchronized (this) {
saveSettingsLocked(userHandle);
}
}
}
}
}
private class SetupContentObserver extends ContentObserver {
private final Uri mUserSetupComplete = Settings.Secure.getUriFor(
Settings.Secure.USER_SETUP_COMPLETE);
public SetupContentObserver(Handler handler) {
super(handler);
}
void register(ContentResolver resolver) {
resolver.registerContentObserver(mUserSetupComplete, false, this, UserHandle.USER_ALL);
}
@Override
public void onChange(boolean selfChange, Uri uri) {
if (mUserSetupComplete.equals(uri)) {
updateUserSetupComplete();
}
}
}
private final class LocalService extends DevicePolicyManagerInternal {
@Override
public List<String> getCrossProfileWidgetProviders(int profileId) {
ComponentName ownerComponent = mDeviceOwner.getProfileOwnerComponent(profileId);
if (ownerComponent == null) {
return Collections.emptyList();
}
DevicePolicyData policy = getUserData(profileId);
ActiveAdmin admin = policy.mAdminMap.get(ownerComponent);
if (admin == null) {
return Collections.emptyList();
}
if (admin.crossProfileWidgetProviders == null
|| admin.crossProfileWidgetProviders.isEmpty()) {
return Collections.emptyList();
}
return admin.crossProfileWidgetProviders;
}
}
}