| /* |
| * Copyright (C) 2014 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 android.annotation.Nullable; |
| import android.app.ActivityManagerInternal; |
| import android.app.AppOpsManagerInternal; |
| import android.app.admin.SystemUpdateInfo; |
| import android.app.admin.SystemUpdatePolicy; |
| import android.content.ComponentName; |
| import android.content.pm.PackageManager; |
| import android.content.pm.PackageManagerInternal; |
| import android.content.pm.UserInfo; |
| import android.os.Binder; |
| import android.os.Environment; |
| import android.os.Process; |
| import android.os.UserHandle; |
| import android.os.UserManager; |
| import android.os.UserManagerInternal; |
| import android.util.ArrayMap; |
| import android.util.AtomicFile; |
| import android.util.Log; |
| import android.util.Pair; |
| import android.util.Slog; |
| import android.util.SparseArray; |
| import android.util.SparseIntArray; |
| import android.util.Xml; |
| |
| import com.android.internal.annotations.VisibleForTesting; |
| import com.android.internal.util.FastXmlSerializer; |
| import com.android.internal.util.IndentingPrintWriter; |
| import com.android.server.LocalServices; |
| import com.android.server.wm.ActivityTaskManagerInternal; |
| |
| import libcore.io.IoUtils; |
| |
| import org.xmlpull.v1.XmlPullParser; |
| import org.xmlpull.v1.XmlPullParserException; |
| import org.xmlpull.v1.XmlSerializer; |
| |
| import java.io.File; |
| import java.io.FileOutputStream; |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.nio.charset.StandardCharsets; |
| import java.time.LocalDate; |
| import java.util.List; |
| import java.util.Map; |
| import java.util.Objects; |
| import java.util.Set; |
| |
| /** |
| * Stores and restores state for the Device and Profile owners and related device-wide information. |
| * By definition there can be only one device owner, but there may be a profile owner for each user. |
| * |
| * <p>This class is thread safe, so individual methods can safely be called without locking. |
| * However, caller must still synchronize on their side to ensure integrity between multiple calls. |
| */ |
| class Owners { |
| private static final String TAG = "DevicePolicyManagerService"; |
| |
| private static final boolean DEBUG = false; // DO NOT SUBMIT WITH TRUE |
| |
| private static final String DEVICE_OWNER_XML_LEGACY = "device_owner.xml"; |
| |
| // XML storing device owner info, system update policy and pending OTA update information. |
| private static final String DEVICE_OWNER_XML = "device_owner_2.xml"; |
| |
| private static final String PROFILE_OWNER_XML = "profile_owner.xml"; |
| |
| private static final String TAG_ROOT = "root"; |
| |
| private static final String TAG_DEVICE_OWNER = "device-owner"; |
| private static final String TAG_DEVICE_INITIALIZER = "device-initializer"; |
| private static final String TAG_SYSTEM_UPDATE_POLICY = "system-update-policy"; |
| private static final String TAG_FREEZE_PERIOD_RECORD = "freeze-record"; |
| private static final String TAG_PENDING_OTA_INFO = "pending-ota-info"; |
| private static final String TAG_PROFILE_OWNER = "profile-owner"; |
| // Holds "context" for device-owner, this must not be show up before device-owner. |
| private static final String TAG_DEVICE_OWNER_CONTEXT = "device-owner-context"; |
| |
| private static final String ATTR_NAME = "name"; |
| private static final String ATTR_PACKAGE = "package"; |
| private static final String ATTR_COMPONENT_NAME = "component"; |
| private static final String ATTR_REMOTE_BUGREPORT_URI = "remoteBugreportUri"; |
| private static final String ATTR_REMOTE_BUGREPORT_HASH = "remoteBugreportHash"; |
| private static final String ATTR_USERID = "userId"; |
| private static final String ATTR_USER_RESTRICTIONS_MIGRATED = "userRestrictionsMigrated"; |
| private static final String ATTR_FREEZE_RECORD_START = "start"; |
| private static final String ATTR_FREEZE_RECORD_END = "end"; |
| // Legacy attribute, its presence would mean the profile owner associated with it is |
| // managing a profile on an organization-owned device. |
| private static final String ATTR_CAN_ACCESS_DEVICE_IDS = "canAccessDeviceIds"; |
| // New attribute for profile owner of organization-owned device. |
| private static final String ATTR_PROFILE_OWNER_OF_ORG_OWNED_DEVICE = |
| "isPoOrganizationOwnedDevice"; |
| |
| private final UserManager mUserManager; |
| private final UserManagerInternal mUserManagerInternal; |
| private final PackageManagerInternal mPackageManagerInternal; |
| private final ActivityTaskManagerInternal mActivityTaskManagerInternal; |
| private final ActivityManagerInternal mActivityManagerInternal; |
| |
| private boolean mSystemReady; |
| |
| // Internal state for the device owner package. |
| private OwnerInfo mDeviceOwner; |
| |
| private int mDeviceOwnerUserId = UserHandle.USER_NULL; |
| |
| // Internal state for the profile owner packages. |
| private final ArrayMap<Integer, OwnerInfo> mProfileOwners = new ArrayMap<>(); |
| |
| // Local system update policy controllable by device owner. |
| private SystemUpdatePolicy mSystemUpdatePolicy; |
| private LocalDate mSystemUpdateFreezeStart; |
| private LocalDate mSystemUpdateFreezeEnd; |
| |
| // Pending OTA info if there is one. |
| @Nullable |
| private SystemUpdateInfo mSystemUpdateInfo; |
| |
| private final Object mLock = new Object(); |
| private final Injector mInjector; |
| |
| public Owners(UserManager userManager, |
| UserManagerInternal userManagerInternal, |
| PackageManagerInternal packageManagerInternal, |
| ActivityTaskManagerInternal activityTaskManagerInternal, |
| ActivityManagerInternal activitykManagerInternal) { |
| this(userManager, userManagerInternal, packageManagerInternal, |
| activityTaskManagerInternal, activitykManagerInternal, new Injector()); |
| } |
| |
| @VisibleForTesting |
| Owners(UserManager userManager, |
| UserManagerInternal userManagerInternal, |
| PackageManagerInternal packageManagerInternal, |
| ActivityTaskManagerInternal activityTaskManagerInternal, |
| ActivityManagerInternal activityManagerInternal, |
| Injector injector) { |
| mUserManager = userManager; |
| mUserManagerInternal = userManagerInternal; |
| mPackageManagerInternal = packageManagerInternal; |
| mActivityTaskManagerInternal = activityTaskManagerInternal; |
| mActivityManagerInternal = activityManagerInternal; |
| mInjector = injector; |
| } |
| |
| /** |
| * Load configuration from the disk. |
| */ |
| void load() { |
| synchronized (mLock) { |
| // First, try to read from the legacy file. |
| final File legacy = getLegacyConfigFile(); |
| |
| final List<UserInfo> users = mUserManager.getUsers(true); |
| |
| if (readLegacyOwnerFileLocked(legacy)) { |
| if (DEBUG) { |
| Log.d(TAG, "Legacy config file found."); |
| } |
| |
| // Legacy file exists, write to new files and remove the legacy one. |
| writeDeviceOwner(); |
| for (int userId : getProfileOwnerKeys()) { |
| writeProfileOwner(userId); |
| } |
| if (DEBUG) { |
| Log.d(TAG, "Deleting legacy config file"); |
| } |
| if (!legacy.delete()) { |
| Slog.e(TAG, "Failed to remove the legacy setting file"); |
| } |
| } else { |
| // No legacy file, read from the new format files. |
| new DeviceOwnerReadWriter().readFromFileLocked(); |
| |
| for (UserInfo ui : users) { |
| new ProfileOwnerReadWriter(ui.id).readFromFileLocked(); |
| } |
| } |
| mUserManagerInternal.setDeviceManaged(hasDeviceOwner()); |
| for (UserInfo ui : users) { |
| mUserManagerInternal.setUserManaged(ui.id, hasProfileOwner(ui.id)); |
| } |
| if (hasDeviceOwner() && hasProfileOwner(getDeviceOwnerUserId())) { |
| Slog.w(TAG, String.format("User %d has both DO and PO, which is not supported", |
| getDeviceOwnerUserId())); |
| } |
| pushToPackageManagerLocked(); |
| pushToActivityTaskManagerLocked(); |
| pushToAppOpsLocked(); |
| } |
| } |
| |
| private void pushToPackageManagerLocked() { |
| final SparseArray<String> po = new SparseArray<>(); |
| for (int i = mProfileOwners.size() - 1; i >= 0; i--) { |
| po.put(mProfileOwners.keyAt(i), mProfileOwners.valueAt(i).packageName); |
| } |
| mPackageManagerInternal.setDeviceAndProfileOwnerPackages( |
| mDeviceOwnerUserId, (mDeviceOwner != null ? mDeviceOwner.packageName : null), |
| po); |
| } |
| |
| private void pushToActivityTaskManagerLocked() { |
| final int uid = mDeviceOwner != null ? mPackageManagerInternal.getPackageUid( |
| mDeviceOwner.packageName, |
| PackageManager.MATCH_ALL | PackageManager.MATCH_KNOWN_PACKAGES, mDeviceOwnerUserId) |
| : Process.INVALID_UID; |
| mActivityTaskManagerInternal.setDeviceOwnerUid(uid); |
| mActivityManagerInternal.setDeviceOwnerUid(uid); |
| } |
| |
| String getDeviceOwnerPackageName() { |
| synchronized (mLock) { |
| return mDeviceOwner != null ? mDeviceOwner.packageName : null; |
| } |
| } |
| |
| int getDeviceOwnerUserId() { |
| synchronized (mLock) { |
| return mDeviceOwnerUserId; |
| } |
| } |
| |
| @Nullable |
| Pair<Integer, ComponentName> getDeviceOwnerUserIdAndComponent() { |
| synchronized (mLock) { |
| if (mDeviceOwner == null) { |
| return null; |
| } else { |
| return Pair.create(mDeviceOwnerUserId, mDeviceOwner.admin); |
| } |
| } |
| } |
| |
| String getDeviceOwnerName() { |
| synchronized (mLock) { |
| return mDeviceOwner != null ? mDeviceOwner.name : null; |
| } |
| } |
| |
| ComponentName getDeviceOwnerComponent() { |
| synchronized (mLock) { |
| return mDeviceOwner != null ? mDeviceOwner.admin : null; |
| } |
| } |
| |
| String getDeviceOwnerRemoteBugreportUri() { |
| synchronized (mLock) { |
| return mDeviceOwner != null ? mDeviceOwner.remoteBugreportUri : null; |
| } |
| } |
| |
| String getDeviceOwnerRemoteBugreportHash() { |
| synchronized (mLock) { |
| return mDeviceOwner != null ? mDeviceOwner.remoteBugreportHash : null; |
| } |
| } |
| |
| void setDeviceOwner(ComponentName admin, String ownerName, int userId) { |
| if (userId < 0) { |
| Slog.e(TAG, "Invalid user id for device owner user: " + userId); |
| return; |
| } |
| synchronized (mLock) { |
| // For a newly set DO, there's no need for migration. |
| setDeviceOwnerWithRestrictionsMigrated(admin, ownerName, userId, |
| /* userRestrictionsMigrated =*/ true); |
| } |
| } |
| |
| // Note this should be only called during migration. Normally when DO is set, |
| // userRestrictionsMigrated should always be true. |
| void setDeviceOwnerWithRestrictionsMigrated(ComponentName admin, String ownerName, int userId, |
| boolean userRestrictionsMigrated) { |
| synchronized (mLock) { |
| // A device owner is allowed to access device identifiers. Even though this flag |
| // is not currently checked for device owner, it is set to true here so that it is |
| // semantically compatible with the meaning of this flag. |
| mDeviceOwner = new OwnerInfo(ownerName, admin, userRestrictionsMigrated, |
| /* remoteBugreportUri =*/ null, /* remoteBugreportHash =*/ |
| null, /* isOrganizationOwnedDevice =*/true); |
| mDeviceOwnerUserId = userId; |
| |
| mUserManagerInternal.setDeviceManaged(true); |
| pushToPackageManagerLocked(); |
| pushToActivityTaskManagerLocked(); |
| pushToAppOpsLocked(); |
| } |
| } |
| |
| void clearDeviceOwner() { |
| synchronized (mLock) { |
| mDeviceOwner = null; |
| mDeviceOwnerUserId = UserHandle.USER_NULL; |
| |
| mUserManagerInternal.setDeviceManaged(false); |
| pushToPackageManagerLocked(); |
| pushToActivityTaskManagerLocked(); |
| pushToAppOpsLocked(); |
| } |
| } |
| |
| void setProfileOwner(ComponentName admin, String ownerName, int userId) { |
| synchronized (mLock) { |
| // For a newly set PO, there's no need for migration. |
| mProfileOwners.put(userId, new OwnerInfo(ownerName, admin, |
| /* userRestrictionsMigrated =*/ true, /* remoteBugreportUri =*/ null, |
| /* remoteBugreportHash =*/ null, /* isOrganizationOwnedDevice =*/ false)); |
| mUserManagerInternal.setUserManaged(userId, true); |
| pushToPackageManagerLocked(); |
| pushToAppOpsLocked(); |
| } |
| } |
| |
| void removeProfileOwner(int userId) { |
| synchronized (mLock) { |
| mProfileOwners.remove(userId); |
| mUserManagerInternal.setUserManaged(userId, false); |
| pushToPackageManagerLocked(); |
| pushToAppOpsLocked(); |
| } |
| } |
| |
| void transferProfileOwner(ComponentName target, int userId) { |
| synchronized (mLock) { |
| final OwnerInfo ownerInfo = mProfileOwners.get(userId); |
| final OwnerInfo newOwnerInfo = new OwnerInfo(target.getPackageName(), target, |
| ownerInfo.userRestrictionsMigrated, ownerInfo.remoteBugreportUri, |
| ownerInfo.remoteBugreportHash, /* isOrganizationOwnedDevice =*/ |
| ownerInfo.isOrganizationOwnedDevice); |
| mProfileOwners.put(userId, newOwnerInfo); |
| pushToPackageManagerLocked(); |
| pushToAppOpsLocked(); |
| } |
| } |
| |
| void transferDeviceOwnership(ComponentName target) { |
| synchronized (mLock) { |
| // We don't set a name because it's not used anyway. |
| // See DevicePolicyManagerService#getDeviceOwnerName |
| mDeviceOwner = new OwnerInfo(null, target, |
| mDeviceOwner.userRestrictionsMigrated, mDeviceOwner.remoteBugreportUri, |
| mDeviceOwner.remoteBugreportHash, /* isOrganizationOwnedDevice =*/ |
| mDeviceOwner.isOrganizationOwnedDevice); |
| pushToPackageManagerLocked(); |
| pushToActivityTaskManagerLocked(); |
| pushToAppOpsLocked(); |
| } |
| } |
| |
| ComponentName getProfileOwnerComponent(int userId) { |
| synchronized (mLock) { |
| OwnerInfo profileOwner = mProfileOwners.get(userId); |
| return profileOwner != null ? profileOwner.admin : null; |
| } |
| } |
| |
| String getProfileOwnerName(int userId) { |
| synchronized (mLock) { |
| OwnerInfo profileOwner = mProfileOwners.get(userId); |
| return profileOwner != null ? profileOwner.name : null; |
| } |
| } |
| |
| String getProfileOwnerPackage(int userId) { |
| synchronized (mLock) { |
| OwnerInfo profileOwner = mProfileOwners.get(userId); |
| return profileOwner != null ? profileOwner.packageName : null; |
| } |
| } |
| |
| /** |
| * Returns true if {@code userId} has a profile owner and that profile owner is on an |
| * organization-owned device, as indicated by the provisioning flow. |
| */ |
| boolean isProfileOwnerOfOrganizationOwnedDevice(int userId) { |
| synchronized (mLock) { |
| OwnerInfo profileOwner = mProfileOwners.get(userId); |
| return profileOwner != null ? profileOwner.isOrganizationOwnedDevice : false; |
| } |
| } |
| |
| Set<Integer> getProfileOwnerKeys() { |
| synchronized (mLock) { |
| return mProfileOwners.keySet(); |
| } |
| } |
| |
| SystemUpdatePolicy getSystemUpdatePolicy() { |
| synchronized (mLock) { |
| return mSystemUpdatePolicy; |
| } |
| } |
| |
| void setSystemUpdatePolicy(SystemUpdatePolicy systemUpdatePolicy) { |
| synchronized (mLock) { |
| mSystemUpdatePolicy = systemUpdatePolicy; |
| } |
| } |
| |
| void clearSystemUpdatePolicy() { |
| synchronized (mLock) { |
| mSystemUpdatePolicy = null; |
| } |
| } |
| |
| Pair<LocalDate, LocalDate> getSystemUpdateFreezePeriodRecord() { |
| synchronized (mLock) { |
| return new Pair<>(mSystemUpdateFreezeStart, mSystemUpdateFreezeEnd); |
| } |
| } |
| |
| String getSystemUpdateFreezePeriodRecordAsString() { |
| StringBuilder freezePeriodRecord = new StringBuilder(); |
| freezePeriodRecord.append("start: "); |
| if (mSystemUpdateFreezeStart != null) { |
| freezePeriodRecord.append(mSystemUpdateFreezeStart.toString()); |
| } else { |
| freezePeriodRecord.append("null"); |
| } |
| freezePeriodRecord.append("; end: "); |
| if (mSystemUpdateFreezeEnd != null) { |
| freezePeriodRecord.append(mSystemUpdateFreezeEnd.toString()); |
| } else { |
| freezePeriodRecord.append("null"); |
| } |
| return freezePeriodRecord.toString(); |
| } |
| |
| /** |
| * Returns {@code true} if the freeze period record is changed, {@code false} otherwise. |
| */ |
| boolean setSystemUpdateFreezePeriodRecord(LocalDate start, LocalDate end) { |
| boolean changed = false; |
| synchronized (mLock) { |
| if (!Objects.equals(mSystemUpdateFreezeStart, start)) { |
| mSystemUpdateFreezeStart = start; |
| changed = true; |
| } |
| if (!Objects.equals(mSystemUpdateFreezeEnd, end)) { |
| mSystemUpdateFreezeEnd = end; |
| changed = true; |
| } |
| } |
| return changed; |
| } |
| |
| boolean hasDeviceOwner() { |
| synchronized (mLock) { |
| return mDeviceOwner != null; |
| } |
| } |
| |
| boolean isDeviceOwnerUserId(int userId) { |
| synchronized (mLock) { |
| return mDeviceOwner != null && mDeviceOwnerUserId == userId; |
| } |
| } |
| |
| boolean hasProfileOwner(int userId) { |
| synchronized (mLock) { |
| return getProfileOwnerComponent(userId) != null; |
| } |
| } |
| |
| /** |
| * @return true if user restrictions need to be migrated for DO. |
| */ |
| boolean getDeviceOwnerUserRestrictionsNeedsMigration() { |
| synchronized (mLock) { |
| return mDeviceOwner != null && !mDeviceOwner.userRestrictionsMigrated; |
| } |
| } |
| |
| /** |
| * @return true if user restrictions need to be migrated for PO. |
| */ |
| boolean getProfileOwnerUserRestrictionsNeedsMigration(int userId) { |
| synchronized (mLock) { |
| OwnerInfo profileOwner = mProfileOwners.get(userId); |
| return profileOwner != null && !profileOwner.userRestrictionsMigrated; |
| } |
| } |
| |
| /** Sets the user restrictions migrated flag, and also writes to the file. */ |
| void setDeviceOwnerUserRestrictionsMigrated() { |
| synchronized (mLock) { |
| if (mDeviceOwner != null) { |
| mDeviceOwner.userRestrictionsMigrated = true; |
| } |
| writeDeviceOwner(); |
| } |
| } |
| |
| /** Sets the remote bugreport uri and hash, and also writes to the file. */ |
| void setDeviceOwnerRemoteBugreportUriAndHash(String remoteBugreportUri, |
| String remoteBugreportHash) { |
| synchronized (mLock) { |
| if (mDeviceOwner != null) { |
| mDeviceOwner.remoteBugreportUri = remoteBugreportUri; |
| mDeviceOwner.remoteBugreportHash = remoteBugreportHash; |
| } |
| writeDeviceOwner(); |
| } |
| } |
| |
| /** Sets the user restrictions migrated flag, and also writes to the file. */ |
| void setProfileOwnerUserRestrictionsMigrated(int userId) { |
| synchronized (mLock) { |
| OwnerInfo profileOwner = mProfileOwners.get(userId); |
| if (profileOwner != null) { |
| profileOwner.userRestrictionsMigrated = true; |
| } |
| writeProfileOwner(userId); |
| } |
| } |
| |
| /** Sets the indicator that the profile owner manages an organization-owned device, |
| * then write to file. */ |
| void markProfileOwnerOfOrganizationOwnedDevice(int userId) { |
| synchronized (mLock) { |
| OwnerInfo profileOwner = mProfileOwners.get(userId); |
| if (profileOwner != null) { |
| profileOwner.isOrganizationOwnedDevice = true; |
| } else { |
| Slog.e(TAG, String.format( |
| "No profile owner for user %d to set as org-owned.", userId)); |
| } |
| writeProfileOwner(userId); |
| } |
| } |
| |
| private boolean readLegacyOwnerFileLocked(File file) { |
| if (!file.exists()) { |
| // Already migrated or the device has no owners. |
| return false; |
| } |
| try { |
| InputStream input = new AtomicFile(file).openRead(); |
| XmlPullParser parser = Xml.newPullParser(); |
| parser.setInput(input, StandardCharsets.UTF_8.name()); |
| int type; |
| while ((type=parser.next()) != XmlPullParser.END_DOCUMENT) { |
| if (type!=XmlPullParser.START_TAG) { |
| continue; |
| } |
| |
| String tag = parser.getName(); |
| if (tag.equals(TAG_DEVICE_OWNER)) { |
| String name = parser.getAttributeValue(null, ATTR_NAME); |
| String packageName = parser.getAttributeValue(null, ATTR_PACKAGE); |
| mDeviceOwner = new OwnerInfo(name, packageName, |
| /* userRestrictionsMigrated =*/ false, /* remoteBugreportUri =*/ null, |
| /* remoteBugreportHash =*/ null, /* isOrganizationOwnedDevice =*/ true); |
| mDeviceOwnerUserId = UserHandle.USER_SYSTEM; |
| } else if (tag.equals(TAG_DEVICE_INITIALIZER)) { |
| // Deprecated tag |
| } else if (tag.equals(TAG_PROFILE_OWNER)) { |
| String profileOwnerPackageName = parser.getAttributeValue(null, ATTR_PACKAGE); |
| String profileOwnerName = parser.getAttributeValue(null, ATTR_NAME); |
| String profileOwnerComponentStr = |
| parser.getAttributeValue(null, ATTR_COMPONENT_NAME); |
| int userId = Integer.parseInt(parser.getAttributeValue(null, ATTR_USERID)); |
| OwnerInfo profileOwnerInfo = null; |
| if (profileOwnerComponentStr != null) { |
| ComponentName admin = ComponentName.unflattenFromString( |
| profileOwnerComponentStr); |
| if (admin != null) { |
| profileOwnerInfo = new OwnerInfo(profileOwnerName, admin, |
| /* userRestrictionsMigrated =*/ false, null, |
| null, /* isOrganizationOwnedDevice =*/ false); |
| } else { |
| // This shouldn't happen but switch from package name -> component name |
| // might have written bad device owner files. b/17652534 |
| Slog.e(TAG, "Error parsing device-owner file. Bad component name " + |
| profileOwnerComponentStr); |
| } |
| } |
| if (profileOwnerInfo == null) { |
| profileOwnerInfo = new OwnerInfo(profileOwnerName, profileOwnerPackageName, |
| /* userRestrictionsMigrated =*/ false, |
| /* remoteBugreportUri =*/ null, /* remoteBugreportHash =*/ |
| null, /* isOrganizationOwnedDevice =*/ false); |
| } |
| mProfileOwners.put(userId, profileOwnerInfo); |
| } else if (TAG_SYSTEM_UPDATE_POLICY.equals(tag)) { |
| mSystemUpdatePolicy = SystemUpdatePolicy.restoreFromXml(parser); |
| } else { |
| throw new XmlPullParserException( |
| "Unexpected tag in device owner file: " + tag); |
| } |
| } |
| input.close(); |
| } catch (XmlPullParserException|IOException e) { |
| Slog.e(TAG, "Error parsing device-owner file", e); |
| } |
| return true; |
| } |
| |
| void writeDeviceOwner() { |
| synchronized (mLock) { |
| if (DEBUG) { |
| Log.d(TAG, "Writing to device owner file"); |
| } |
| new DeviceOwnerReadWriter().writeToFileLocked(); |
| } |
| } |
| |
| void writeProfileOwner(int userId) { |
| synchronized (mLock) { |
| if (DEBUG) { |
| Log.d(TAG, "Writing to profile owner file for user " + userId); |
| } |
| new ProfileOwnerReadWriter(userId).writeToFileLocked(); |
| } |
| } |
| |
| /** |
| * Saves the given {@link SystemUpdateInfo} if it is different from the existing one, or if |
| * none exists. |
| * |
| * @return Whether the saved system update information has changed. |
| */ |
| boolean saveSystemUpdateInfo(@Nullable SystemUpdateInfo newInfo) { |
| synchronized (mLock) { |
| // Check if we already have the same update information. |
| if (Objects.equals(newInfo, mSystemUpdateInfo)) { |
| return false; |
| } |
| |
| mSystemUpdateInfo = newInfo; |
| new DeviceOwnerReadWriter().writeToFileLocked(); |
| return true; |
| } |
| } |
| |
| @Nullable |
| public SystemUpdateInfo getSystemUpdateInfo() { |
| synchronized (mLock) { |
| return mSystemUpdateInfo; |
| } |
| } |
| |
| void pushToAppOpsLocked() { |
| if (!mSystemReady) { |
| return; |
| } |
| final long ident = Binder.clearCallingIdentity(); |
| try { |
| final SparseIntArray owners = new SparseIntArray(); |
| if (mDeviceOwner != null) { |
| final int uid = mPackageManagerInternal.getPackageUid(mDeviceOwner.packageName, |
| PackageManager.MATCH_ALL | PackageManager.MATCH_KNOWN_PACKAGES, |
| mDeviceOwnerUserId); |
| if (uid >= 0) { |
| owners.put(mDeviceOwnerUserId, uid); |
| } |
| } |
| if (mProfileOwners != null) { |
| for (int poi = mProfileOwners.size() - 1; poi >= 0; poi--) { |
| final int uid = mPackageManagerInternal.getPackageUid( |
| mProfileOwners.valueAt(poi).packageName, |
| PackageManager.MATCH_ALL | PackageManager.MATCH_KNOWN_PACKAGES, |
| mProfileOwners.keyAt(poi)); |
| if (uid >= 0) { |
| owners.put(mProfileOwners.keyAt(poi), uid); |
| } |
| } |
| } |
| AppOpsManagerInternal appops = LocalServices.getService(AppOpsManagerInternal.class); |
| if (appops != null) { |
| appops.setDeviceAndProfileOwners(owners.size() > 0 ? owners : null); |
| } |
| } finally { |
| Binder.restoreCallingIdentity(ident); |
| } |
| } |
| |
| public void systemReady() { |
| synchronized (mLock) { |
| mSystemReady = true; |
| pushToAppOpsLocked(); |
| } |
| } |
| |
| private abstract static class FileReadWriter { |
| private final File mFile; |
| |
| protected FileReadWriter(File file) { |
| mFile = file; |
| } |
| |
| abstract boolean shouldWrite(); |
| |
| void writeToFileLocked() { |
| if (!shouldWrite()) { |
| if (DEBUG) { |
| Log.d(TAG, "No need to write to " + mFile); |
| } |
| // No contents, remove the file. |
| if (mFile.exists()) { |
| if (DEBUG) { |
| Log.d(TAG, "Deleting existing " + mFile); |
| } |
| if (!mFile.delete()) { |
| Slog.e(TAG, "Failed to remove " + mFile.getPath()); |
| } |
| } |
| return; |
| } |
| if (DEBUG) { |
| Log.d(TAG, "Writing to " + mFile); |
| } |
| |
| final AtomicFile f = new AtomicFile(mFile); |
| FileOutputStream outputStream = null; |
| try { |
| outputStream = f.startWrite(); |
| final XmlSerializer out = new FastXmlSerializer(); |
| out.setOutput(outputStream, StandardCharsets.UTF_8.name()); |
| |
| // Root tag |
| out.startDocument(null, true); |
| out.startTag(null, TAG_ROOT); |
| |
| // Actual content |
| writeInner(out); |
| |
| // Close root |
| out.endTag(null, TAG_ROOT); |
| out.endDocument(); |
| out.flush(); |
| |
| // Commit the content. |
| f.finishWrite(outputStream); |
| outputStream = null; |
| |
| } catch (IOException e) { |
| Slog.e(TAG, "Exception when writing", e); |
| if (outputStream != null) { |
| f.failWrite(outputStream); |
| } |
| } |
| } |
| |
| void readFromFileLocked() { |
| if (!mFile.exists()) { |
| if (DEBUG) { |
| Log.d(TAG, "" + mFile + " doesn't exist"); |
| } |
| return; |
| } |
| if (DEBUG) { |
| Log.d(TAG, "Reading from " + mFile); |
| } |
| final AtomicFile f = new AtomicFile(mFile); |
| InputStream input = null; |
| try { |
| input = f.openRead(); |
| final XmlPullParser parser = Xml.newPullParser(); |
| parser.setInput(input, StandardCharsets.UTF_8.name()); |
| |
| int type; |
| int depth = 0; |
| while ((type = parser.next()) != XmlPullParser.END_DOCUMENT) { |
| switch (type) { |
| case XmlPullParser.START_TAG: |
| depth++; |
| break; |
| case XmlPullParser.END_TAG: |
| depth--; |
| // fallthrough |
| default: |
| continue; |
| } |
| // Check the root tag |
| final String tag = parser.getName(); |
| if (depth == 1) { |
| if (!TAG_ROOT.equals(tag)) { |
| Slog.e(TAG, "Invalid root tag: " + tag); |
| return; |
| } |
| continue; |
| } |
| // readInner() will only see START_TAG at depth >= 2. |
| if (!readInner(parser, depth, tag)) { |
| return; // Error |
| } |
| } |
| } catch (XmlPullParserException | IOException e) { |
| Slog.e(TAG, "Error parsing owners information file", e); |
| } finally { |
| IoUtils.closeQuietly(input); |
| } |
| } |
| |
| abstract void writeInner(XmlSerializer out) throws IOException; |
| |
| abstract boolean readInner(XmlPullParser parser, int depth, String tag); |
| } |
| |
| private class DeviceOwnerReadWriter extends FileReadWriter { |
| |
| protected DeviceOwnerReadWriter() { |
| super(getDeviceOwnerFile()); |
| } |
| |
| @Override |
| boolean shouldWrite() { |
| return (mDeviceOwner != null) || (mSystemUpdatePolicy != null) |
| || (mSystemUpdateInfo != null); |
| } |
| |
| @Override |
| void writeInner(XmlSerializer out) throws IOException { |
| if (mDeviceOwner != null) { |
| mDeviceOwner.writeToXml(out, TAG_DEVICE_OWNER); |
| out.startTag(null, TAG_DEVICE_OWNER_CONTEXT); |
| out.attribute(null, ATTR_USERID, String.valueOf(mDeviceOwnerUserId)); |
| out.endTag(null, TAG_DEVICE_OWNER_CONTEXT); |
| } |
| |
| if (mSystemUpdatePolicy != null) { |
| out.startTag(null, TAG_SYSTEM_UPDATE_POLICY); |
| mSystemUpdatePolicy.saveToXml(out); |
| out.endTag(null, TAG_SYSTEM_UPDATE_POLICY); |
| } |
| |
| if (mSystemUpdateInfo != null) { |
| mSystemUpdateInfo.writeToXml(out, TAG_PENDING_OTA_INFO); |
| } |
| |
| if (mSystemUpdateFreezeStart != null || mSystemUpdateFreezeEnd != null) { |
| out.startTag(null, TAG_FREEZE_PERIOD_RECORD); |
| if (mSystemUpdateFreezeStart != null) { |
| out.attribute(null, ATTR_FREEZE_RECORD_START, |
| mSystemUpdateFreezeStart.toString()); |
| } |
| if (mSystemUpdateFreezeEnd != null) { |
| out.attribute(null, ATTR_FREEZE_RECORD_END, mSystemUpdateFreezeEnd.toString()); |
| } |
| out.endTag(null, TAG_FREEZE_PERIOD_RECORD); |
| } |
| } |
| |
| @Override |
| boolean readInner(XmlPullParser parser, int depth, String tag) { |
| if (depth > 2) { |
| return true; // Ignore |
| } |
| switch (tag) { |
| case TAG_DEVICE_OWNER: |
| mDeviceOwner = OwnerInfo.readFromXml(parser); |
| mDeviceOwnerUserId = UserHandle.USER_SYSTEM; // Set default |
| break; |
| case TAG_DEVICE_OWNER_CONTEXT: { |
| final String userIdString = |
| parser.getAttributeValue(null, ATTR_USERID); |
| try { |
| mDeviceOwnerUserId = Integer.parseInt(userIdString); |
| } catch (NumberFormatException e) { |
| Slog.e(TAG, "Error parsing user-id " + userIdString); |
| } |
| break; |
| } |
| case TAG_DEVICE_INITIALIZER: |
| // Deprecated tag |
| break; |
| case TAG_SYSTEM_UPDATE_POLICY: |
| mSystemUpdatePolicy = SystemUpdatePolicy.restoreFromXml(parser); |
| break; |
| case TAG_PENDING_OTA_INFO: |
| mSystemUpdateInfo = SystemUpdateInfo.readFromXml(parser); |
| break; |
| case TAG_FREEZE_PERIOD_RECORD: |
| String startDate = parser.getAttributeValue(null, ATTR_FREEZE_RECORD_START); |
| String endDate = parser.getAttributeValue(null, ATTR_FREEZE_RECORD_END); |
| if (startDate != null && endDate != null) { |
| mSystemUpdateFreezeStart = LocalDate.parse(startDate); |
| mSystemUpdateFreezeEnd = LocalDate.parse(endDate); |
| if (mSystemUpdateFreezeStart.isAfter(mSystemUpdateFreezeEnd)) { |
| Slog.e(TAG, "Invalid system update freeze record loaded"); |
| mSystemUpdateFreezeStart = null; |
| mSystemUpdateFreezeEnd = null; |
| } |
| } |
| break; |
| default: |
| Slog.e(TAG, "Unexpected tag: " + tag); |
| return false; |
| |
| } |
| return true; |
| } |
| } |
| |
| private class ProfileOwnerReadWriter extends FileReadWriter { |
| private final int mUserId; |
| |
| ProfileOwnerReadWriter(int userId) { |
| super(getProfileOwnerFile(userId)); |
| mUserId = userId; |
| } |
| |
| @Override |
| boolean shouldWrite() { |
| return mProfileOwners.get(mUserId) != null; |
| } |
| |
| @Override |
| void writeInner(XmlSerializer out) throws IOException { |
| final OwnerInfo profileOwner = mProfileOwners.get(mUserId); |
| if (profileOwner != null) { |
| profileOwner.writeToXml(out, TAG_PROFILE_OWNER); |
| } |
| } |
| |
| @Override |
| boolean readInner(XmlPullParser parser, int depth, String tag) { |
| if (depth > 2) { |
| return true; // Ignore |
| } |
| switch (tag) { |
| case TAG_PROFILE_OWNER: |
| mProfileOwners.put(mUserId, OwnerInfo.readFromXml(parser)); |
| break; |
| default: |
| Slog.e(TAG, "Unexpected tag: " + tag); |
| return false; |
| |
| } |
| return true; |
| } |
| } |
| |
| static class OwnerInfo { |
| public final String name; |
| public final String packageName; |
| public final ComponentName admin; |
| public boolean userRestrictionsMigrated; |
| public String remoteBugreportUri; |
| public String remoteBugreportHash; |
| public boolean isOrganizationOwnedDevice; |
| |
| public OwnerInfo(String name, String packageName, boolean userRestrictionsMigrated, |
| String remoteBugreportUri, String remoteBugreportHash, |
| boolean isOrganizationOwnedDevice) { |
| this.name = name; |
| this.packageName = packageName; |
| this.admin = new ComponentName(packageName, ""); |
| this.userRestrictionsMigrated = userRestrictionsMigrated; |
| this.remoteBugreportUri = remoteBugreportUri; |
| this.remoteBugreportHash = remoteBugreportHash; |
| this.isOrganizationOwnedDevice = isOrganizationOwnedDevice; |
| } |
| |
| public OwnerInfo(String name, ComponentName admin, boolean userRestrictionsMigrated, |
| String remoteBugreportUri, String remoteBugreportHash, |
| boolean isOrganizationOwnedDevice) { |
| this.name = name; |
| this.admin = admin; |
| this.packageName = admin.getPackageName(); |
| this.userRestrictionsMigrated = userRestrictionsMigrated; |
| this.remoteBugreportUri = remoteBugreportUri; |
| this.remoteBugreportHash = remoteBugreportHash; |
| this.isOrganizationOwnedDevice = isOrganizationOwnedDevice; |
| } |
| |
| public void writeToXml(XmlSerializer out, String tag) throws IOException { |
| out.startTag(null, tag); |
| out.attribute(null, ATTR_PACKAGE, packageName); |
| if (name != null) { |
| out.attribute(null, ATTR_NAME, name); |
| } |
| if (admin != null) { |
| out.attribute(null, ATTR_COMPONENT_NAME, admin.flattenToString()); |
| } |
| out.attribute(null, ATTR_USER_RESTRICTIONS_MIGRATED, |
| String.valueOf(userRestrictionsMigrated)); |
| if (remoteBugreportUri != null) { |
| out.attribute(null, ATTR_REMOTE_BUGREPORT_URI, remoteBugreportUri); |
| } |
| if (remoteBugreportHash != null) { |
| out.attribute(null, ATTR_REMOTE_BUGREPORT_HASH, remoteBugreportHash); |
| } |
| if (isOrganizationOwnedDevice) { |
| out.attribute(null, ATTR_PROFILE_OWNER_OF_ORG_OWNED_DEVICE, |
| String.valueOf(isOrganizationOwnedDevice)); |
| } |
| out.endTag(null, tag); |
| } |
| |
| public static OwnerInfo readFromXml(XmlPullParser parser) { |
| final String packageName = parser.getAttributeValue(null, ATTR_PACKAGE); |
| final String name = parser.getAttributeValue(null, ATTR_NAME); |
| final String componentName = |
| parser.getAttributeValue(null, ATTR_COMPONENT_NAME); |
| final String userRestrictionsMigratedStr = |
| parser.getAttributeValue(null, ATTR_USER_RESTRICTIONS_MIGRATED); |
| final boolean userRestrictionsMigrated = |
| ("true".equals(userRestrictionsMigratedStr)); |
| final String remoteBugreportUri = parser.getAttributeValue(null, |
| ATTR_REMOTE_BUGREPORT_URI); |
| final String remoteBugreportHash = parser.getAttributeValue(null, |
| ATTR_REMOTE_BUGREPORT_HASH); |
| final String canAccessDeviceIdsStr = |
| parser.getAttributeValue(null, ATTR_CAN_ACCESS_DEVICE_IDS); |
| final boolean canAccessDeviceIds = |
| ("true".equals(canAccessDeviceIdsStr)); |
| final String isOrgOwnedDeviceStr = |
| parser.getAttributeValue(null, ATTR_PROFILE_OWNER_OF_ORG_OWNED_DEVICE); |
| final boolean isOrgOwnedDevice = |
| ("true".equals(isOrgOwnedDeviceStr)) | canAccessDeviceIds; |
| |
| // Has component name? If so, return [name, component] |
| if (componentName != null) { |
| final ComponentName admin = ComponentName.unflattenFromString(componentName); |
| if (admin != null) { |
| return new OwnerInfo(name, admin, userRestrictionsMigrated, |
| remoteBugreportUri, remoteBugreportHash, isOrgOwnedDevice); |
| } else { |
| // This shouldn't happen but switch from package name -> component name |
| // might have written bad device owner files. b/17652534 |
| Slog.e(TAG, "Error parsing owner file. Bad component name " + |
| componentName); |
| } |
| } |
| |
| // Else, build with [name, package] |
| return new OwnerInfo(name, packageName, userRestrictionsMigrated, remoteBugreportUri, |
| remoteBugreportHash, isOrgOwnedDevice); |
| } |
| |
| public void dump(IndentingPrintWriter pw) { |
| pw.println("admin=" + admin); |
| pw.println("name=" + name); |
| pw.println("package=" + packageName); |
| pw.println("isOrganizationOwnedDevice=" + isOrganizationOwnedDevice); |
| } |
| } |
| |
| public void dump(IndentingPrintWriter pw) { |
| boolean needBlank = false; |
| if (mDeviceOwner != null) { |
| pw.println("Device Owner: "); |
| pw.increaseIndent(); |
| mDeviceOwner.dump(pw); |
| pw.println("User ID: " + mDeviceOwnerUserId); |
| pw.decreaseIndent(); |
| needBlank = true; |
| } |
| if (mSystemUpdatePolicy != null) { |
| if (needBlank) { |
| pw.println(); |
| } |
| pw.println("System Update Policy: " + mSystemUpdatePolicy); |
| needBlank = true; |
| } |
| if (mProfileOwners != null) { |
| for (Map.Entry<Integer, OwnerInfo> entry : mProfileOwners.entrySet()) { |
| if (needBlank) { |
| pw.println(); |
| } |
| pw.println("Profile Owner (User " + entry.getKey() + "): "); |
| pw.increaseIndent(); |
| entry.getValue().dump(pw); |
| pw.decreaseIndent(); |
| needBlank = true; |
| } |
| } |
| if (mSystemUpdateInfo != null) { |
| if (needBlank) { |
| pw.println(); |
| } |
| pw.println("Pending System Update: " + mSystemUpdateInfo); |
| needBlank = true; |
| } |
| if (mSystemUpdateFreezeStart != null || mSystemUpdateFreezeEnd != null) { |
| if (needBlank) { |
| pw.println(); |
| } |
| pw.println("System update freeze record: " |
| + getSystemUpdateFreezePeriodRecordAsString()); |
| needBlank = true; |
| } |
| } |
| |
| @VisibleForTesting |
| File getLegacyConfigFile() { |
| return new File(mInjector.environmentGetDataSystemDirectory(), DEVICE_OWNER_XML_LEGACY); |
| } |
| |
| @VisibleForTesting |
| File getDeviceOwnerFile() { |
| return new File(mInjector.environmentGetDataSystemDirectory(), DEVICE_OWNER_XML); |
| } |
| |
| @VisibleForTesting |
| File getProfileOwnerFile(int userId) { |
| return new File(mInjector.environmentGetUserSystemDirectory(userId), PROFILE_OWNER_XML); |
| } |
| |
| @VisibleForTesting |
| public static class Injector { |
| File environmentGetDataSystemDirectory() { |
| return Environment.getDataSystemDirectory(); |
| } |
| |
| File environmentGetUserSystemDirectory(int userId) { |
| return Environment.getUserSystemDirectory(userId); |
| } |
| } |
| } |
