| /* |
| * 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.pm; |
| |
| import static android.app.admin.DevicePolicyResources.Strings.Core.PACKAGE_DELETED_BY_DO; |
| |
| import static org.xmlpull.v1.XmlPullParser.END_DOCUMENT; |
| import static org.xmlpull.v1.XmlPullParser.START_TAG; |
| |
| import android.Manifest; |
| import android.annotation.NonNull; |
| import android.annotation.Nullable; |
| import android.app.ActivityManager; |
| import android.app.AppGlobals; |
| import android.app.AppOpsManager; |
| import android.app.Notification; |
| import android.app.NotificationManager; |
| import android.app.PackageDeleteObserver; |
| import android.app.admin.DevicePolicyEventLogger; |
| import android.app.admin.DevicePolicyManager; |
| import android.app.admin.DevicePolicyManagerInternal; |
| import android.content.Context; |
| import android.content.Intent; |
| import android.content.IntentSender; |
| import android.content.IntentSender.SendIntentException; |
| import android.content.pm.ApplicationInfo; |
| import android.content.pm.IPackageInstaller; |
| import android.content.pm.IPackageInstallerCallback; |
| import android.content.pm.IPackageInstallerSession; |
| import android.content.pm.PackageInfo; |
| import android.content.pm.PackageInstaller; |
| import android.content.pm.PackageInstaller.SessionInfo; |
| import android.content.pm.PackageInstaller.SessionParams; |
| import android.content.pm.PackageItemInfo; |
| import android.content.pm.PackageManager; |
| import android.content.pm.ParceledListSlice; |
| import android.content.pm.VersionedPackage; |
| import android.graphics.Bitmap; |
| import android.net.Uri; |
| import android.os.Binder; |
| import android.os.Build; |
| import android.os.Environment; |
| import android.os.Handler; |
| import android.os.HandlerThread; |
| import android.os.Looper; |
| import android.os.Message; |
| import android.os.Process; |
| import android.os.RemoteCallbackList; |
| import android.os.RemoteException; |
| import android.os.SELinux; |
| import android.os.UserHandle; |
| import android.os.UserManager; |
| import android.os.storage.StorageManager; |
| import android.stats.devicepolicy.DevicePolicyEnums; |
| import android.system.ErrnoException; |
| import android.system.Os; |
| import android.text.TextUtils; |
| import android.text.format.DateUtils; |
| import android.util.ArraySet; |
| import android.util.AtomicFile; |
| import android.util.ExceptionUtils; |
| import android.util.Log; |
| import android.util.Slog; |
| import android.util.SparseArray; |
| import android.util.SparseBooleanArray; |
| import android.util.SparseIntArray; |
| import android.util.TypedXmlPullParser; |
| import android.util.TypedXmlSerializer; |
| import android.util.Xml; |
| |
| import com.android.internal.R; |
| import com.android.internal.annotations.GuardedBy; |
| import com.android.internal.content.InstallLocationUtils; |
| import com.android.internal.messages.nano.SystemMessageProto.SystemMessage; |
| import com.android.internal.notification.SystemNotificationChannels; |
| import com.android.internal.util.ImageUtils; |
| import com.android.internal.util.IndentingPrintWriter; |
| import com.android.server.IoThread; |
| import com.android.server.LocalServices; |
| import com.android.server.SystemConfig; |
| import com.android.server.SystemService; |
| import com.android.server.SystemServiceManager; |
| import com.android.server.pm.parsing.PackageParser2; |
| import com.android.server.pm.utils.RequestThrottle; |
| |
| import libcore.io.IoUtils; |
| |
| import org.xmlpull.v1.XmlPullParserException; |
| |
| import java.io.CharArrayWriter; |
| import java.io.File; |
| import java.io.FileInputStream; |
| import java.io.FileNotFoundException; |
| import java.io.FileOutputStream; |
| import java.io.FilenameFilter; |
| import java.io.IOException; |
| import java.security.SecureRandom; |
| import java.util.ArrayList; |
| import java.util.Collections; |
| import java.util.Comparator; |
| import java.util.List; |
| import java.util.Map; |
| import java.util.Objects; |
| import java.util.Random; |
| import java.util.TreeMap; |
| import java.util.TreeSet; |
| import java.util.function.IntPredicate; |
| import java.util.function.Supplier; |
| |
| /** The service responsible for installing packages. */ |
| public class PackageInstallerService extends IPackageInstaller.Stub implements |
| PackageSessionProvider { |
| private static final String TAG = "PackageInstaller"; |
| private static final boolean LOGD = Log.isLoggable(TAG, Log.DEBUG); |
| |
| private static final boolean DEBUG = Build.IS_DEBUGGABLE; |
| |
| // TODO: remove outstanding sessions when installer package goes away |
| // TODO: notify listeners in other users when package has been installed there |
| // TODO: purge expired sessions periodically in addition to at reboot |
| |
| /** XML constants used in {@link #mSessionsFile} */ |
| private static final String TAG_SESSIONS = "sessions"; |
| |
| /** Automatically destroy sessions older than this */ |
| private static final long MAX_AGE_MILLIS = 3 * DateUtils.DAY_IN_MILLIS; |
| /** Automatically destroy staged sessions that have not changed state in this time */ |
| private static final long MAX_TIME_SINCE_UPDATE_MILLIS = 21 * DateUtils.DAY_IN_MILLIS; |
| /** Upper bound on number of active sessions for a UID that has INSTALL_PACKAGES */ |
| private static final long MAX_ACTIVE_SESSIONS_WITH_PERMISSION = 1024; |
| /** Upper bound on number of active sessions for a UID without INSTALL_PACKAGES */ |
| private static final long MAX_ACTIVE_SESSIONS_NO_PERMISSION = 50; |
| /** Upper bound on number of historical sessions for a UID */ |
| private static final long MAX_HISTORICAL_SESSIONS = 1048576; |
| /** Destroy sessions older than this on storage free request */ |
| private static final long MAX_SESSION_AGE_ON_LOW_STORAGE_MILLIS = 8 * DateUtils.HOUR_IN_MILLIS; |
| |
| /** |
| * Allow verification-skipping if it's a development app installed through ADB with |
| * disable verification flag specified. |
| */ |
| private static final int ADB_DEV_MODE = PackageManager.INSTALL_FROM_ADB |
| | PackageManager.INSTALL_ALLOW_TEST; |
| |
| private final Context mContext; |
| private final PackageManagerService mPm; |
| private final ApexManager mApexManager; |
| private final StagingManager mStagingManager; |
| |
| private AppOpsManager mAppOps; |
| |
| private final HandlerThread mInstallThread; |
| private final Handler mInstallHandler; |
| |
| private final Callbacks mCallbacks; |
| |
| private volatile boolean mOkToSendBroadcasts = false; |
| private volatile boolean mBypassNextStagedInstallerCheck = false; |
| private volatile boolean mBypassNextAllowedApexUpdateCheck = false; |
| |
| /** |
| * File storing persisted {@link #mSessions} metadata. |
| */ |
| private final AtomicFile mSessionsFile; |
| |
| /** |
| * Directory storing persisted {@link #mSessions} metadata which is too |
| * heavy to store directly in {@link #mSessionsFile}. |
| */ |
| private final File mSessionsDir; |
| |
| private final InternalCallback mInternalCallback = new InternalCallback(); |
| private final PackageSessionVerifier mSessionVerifier; |
| |
| /** |
| * Used for generating session IDs. Since this is created at boot time, |
| * normal random might be predictable. |
| */ |
| private final Random mRandom = new SecureRandom(); |
| |
| /** All sessions allocated */ |
| @GuardedBy("mSessions") |
| private final SparseBooleanArray mAllocatedSessions = new SparseBooleanArray(); |
| |
| @GuardedBy("mSessions") |
| private final SparseArray<PackageInstallerSession> mSessions = new SparseArray<>(); |
| |
| /** Historical sessions kept around for debugging purposes */ |
| @GuardedBy("mSessions") |
| private final List<String> mHistoricalSessions = new ArrayList<>(); |
| |
| @GuardedBy("mSessions") |
| private final SparseIntArray mHistoricalSessionsByInstaller = new SparseIntArray(); |
| |
| /** Sessions allocated to legacy users */ |
| @GuardedBy("mSessions") |
| private final SparseBooleanArray mLegacySessions = new SparseBooleanArray(); |
| |
| /** Policy for allowing a silent update. */ |
| private final SilentUpdatePolicy mSilentUpdatePolicy = new SilentUpdatePolicy(); |
| |
| private static final FilenameFilter sStageFilter = new FilenameFilter() { |
| @Override |
| public boolean accept(File dir, String name) { |
| return isStageName(name); |
| } |
| }; |
| |
| private static final class Lifecycle extends SystemService { |
| private final PackageInstallerService mPackageInstallerService; |
| |
| Lifecycle(Context context, PackageInstallerService service) { |
| super(context); |
| mPackageInstallerService = service; |
| } |
| |
| @Override |
| public void onStart() { |
| // no-op |
| } |
| |
| @Override |
| public void onBootPhase(int phase) { |
| if (phase == SystemService.PHASE_ACTIVITY_MANAGER_READY) { |
| mPackageInstallerService.onBroadcastReady(); |
| } |
| } |
| } |
| |
| @NonNull |
| private final RequestThrottle mSettingsWriteRequest = new RequestThrottle(IoThread.getHandler(), |
| () -> { |
| synchronized (mSessions) { |
| return writeSessionsLocked(); |
| } |
| }); |
| |
| public PackageInstallerService(Context context, PackageManagerService pm, |
| Supplier<PackageParser2> apexParserSupplier) { |
| mContext = context; |
| mPm = pm; |
| |
| mInstallThread = new HandlerThread(TAG); |
| mInstallThread.start(); |
| |
| mInstallHandler = new Handler(mInstallThread.getLooper()); |
| |
| mCallbacks = new Callbacks(mInstallThread.getLooper()); |
| |
| mSessionsFile = new AtomicFile( |
| new File(Environment.getDataSystemDirectory(), "install_sessions.xml"), |
| "package-session"); |
| mSessionsDir = new File(Environment.getDataSystemDirectory(), "install_sessions"); |
| mSessionsDir.mkdirs(); |
| |
| mApexManager = ApexManager.getInstance(); |
| mStagingManager = new StagingManager(context); |
| mSessionVerifier = new PackageSessionVerifier(context, mPm, mApexManager, |
| apexParserSupplier, mInstallThread.getLooper()); |
| |
| LocalServices.getService(SystemServiceManager.class).startService( |
| new Lifecycle(context, this)); |
| } |
| |
| StagingManager getStagingManager() { |
| return mStagingManager; |
| } |
| |
| boolean okToSendBroadcasts() { |
| return mOkToSendBroadcasts; |
| } |
| |
| public void systemReady() { |
| mAppOps = mContext.getSystemService(AppOpsManager.class); |
| mStagingManager.systemReady(); |
| |
| synchronized (mSessions) { |
| readSessionsLocked(); |
| expireSessionsLocked(); |
| |
| reconcileStagesLocked(StorageManager.UUID_PRIVATE_INTERNAL); |
| |
| final ArraySet<File> unclaimedIcons = newArraySet( |
| mSessionsDir.listFiles()); |
| |
| // Ignore stages and icons claimed by active sessions |
| for (int i = 0; i < mSessions.size(); i++) { |
| final PackageInstallerSession session = mSessions.valueAt(i); |
| unclaimedIcons.remove(buildAppIconFile(session.sessionId)); |
| } |
| |
| // Clean up orphaned icons |
| for (File icon : unclaimedIcons) { |
| Slog.w(TAG, "Deleting orphan icon " + icon); |
| icon.delete(); |
| } |
| |
| // Invalid sessions might have been marked while parsing. Re-write the database with |
| // the updated information. |
| mSettingsWriteRequest.runNow(); |
| |
| } |
| } |
| |
| private void onBroadcastReady() { |
| // Broadcasts are not sent while we restore sessions on boot, since no processes would be |
| // ready to listen to them. From now on, it is safe to send broadcasts which otherwise will |
| // be rejected by ActivityManagerService if its systemReady() is not completed. |
| mOkToSendBroadcasts = true; |
| } |
| |
| void restoreAndApplyStagedSessionIfNeeded() { |
| List<StagingManager.StagedSession> stagedSessionsToRestore = new ArrayList<>(); |
| synchronized (mSessions) { |
| for (int i = 0; i < mSessions.size(); i++) { |
| final PackageInstallerSession session = mSessions.valueAt(i); |
| if (!session.isStaged()) { |
| continue; |
| } |
| StagingManager.StagedSession stagedSession = session.mStagedSession; |
| if (!stagedSession.isInTerminalState() && stagedSession.hasParentSessionId() |
| && getSession(stagedSession.getParentSessionId()) == null) { |
| stagedSession.setSessionFailed(PackageManager.INSTALL_ACTIVATION_FAILED, |
| "An orphan staged session " + stagedSession.sessionId() + " is found, " |
| + "parent " + stagedSession.getParentSessionId() + " is missing"); |
| continue; |
| } |
| if (!stagedSession.hasParentSessionId() && stagedSession.isCommitted() |
| && !stagedSession.isInTerminalState()) { |
| // StagingManager.restoreSessions expects a list of committed, non-finalized |
| // parent staged sessions. |
| stagedSessionsToRestore.add(stagedSession); |
| } |
| } |
| } |
| // Don't hold mSessions lock when calling restoreSessions, since it might trigger an APK |
| // atomic install which needs to query sessions, which requires lock on mSessions. |
| // Note: restoreSessions mutates content of stagedSessionsToRestore. |
| mStagingManager.restoreSessions(stagedSessionsToRestore, mPm.isDeviceUpgrading()); |
| } |
| |
| @GuardedBy("mSessions") |
| private void reconcileStagesLocked(String volumeUuid) { |
| final ArraySet<File> unclaimedStages = getStagingDirsOnVolume(volumeUuid); |
| // Ignore stages claimed by active sessions |
| for (int i = 0; i < mSessions.size(); i++) { |
| final PackageInstallerSession session = mSessions.valueAt(i); |
| unclaimedStages.remove(session.stageDir); |
| } |
| removeStagingDirs(unclaimedStages); |
| } |
| |
| private ArraySet<File> getStagingDirsOnVolume(String volumeUuid) { |
| final File stagingDir = getTmpSessionDir(volumeUuid); |
| final ArraySet<File> stagingDirs = newArraySet(stagingDir.listFiles(sStageFilter)); |
| |
| // We also need to clean up orphaned staging directory for staged sessions |
| final File stagedSessionStagingDir = Environment.getDataStagingDirectory(volumeUuid); |
| stagingDirs.addAll(newArraySet(stagedSessionStagingDir.listFiles())); |
| return stagingDirs; |
| } |
| |
| private void removeStagingDirs(ArraySet<File> stagingDirsToRemove) { |
| final RemovePackageHelper removePackageHelper = new RemovePackageHelper(mPm); |
| // Clean up orphaned staging directories |
| for (File stage : stagingDirsToRemove) { |
| Slog.w(TAG, "Deleting orphan stage " + stage); |
| synchronized (mPm.mInstallLock) { |
| removePackageHelper.removeCodePathLI(stage); |
| } |
| } |
| } |
| |
| public void onPrivateVolumeMounted(String volumeUuid) { |
| synchronized (mSessions) { |
| reconcileStagesLocked(volumeUuid); |
| } |
| } |
| |
| /** |
| * Called to free up some storage space from obsolete installation files |
| */ |
| public void freeStageDirs(String volumeUuid) { |
| final ArraySet<File> unclaimedStagingDirsOnVolume = getStagingDirsOnVolume(volumeUuid); |
| final long currentTimeMillis = System.currentTimeMillis(); |
| synchronized (mSessions) { |
| for (int i = 0; i < mSessions.size(); i++) { |
| final PackageInstallerSession session = mSessions.valueAt(i); |
| if (!unclaimedStagingDirsOnVolume.contains(session.stageDir)) { |
| // Only handles sessions stored on the target volume |
| continue; |
| } |
| final long age = currentTimeMillis - session.createdMillis; |
| if (age >= MAX_SESSION_AGE_ON_LOW_STORAGE_MILLIS) { |
| // Aggressively close old sessions because we are running low on storage |
| // Their staging dirs will be removed too |
| PackageInstallerSession root = !session.hasParentSessionId() |
| ? session : mSessions.get(session.getParentSessionId()); |
| if (root == null) { |
| Slog.e(TAG, "freeStageDirs: found an orphaned session: " |
| + session.sessionId + " parent=" + session.getParentSessionId()); |
| } else if (!root.isDestroyed()) { |
| root.abandon(); |
| } |
| } else { |
| // Session is new enough, so it deserves to be kept even on low storage |
| unclaimedStagingDirsOnVolume.remove(session.stageDir); |
| } |
| } |
| } |
| removeStagingDirs(unclaimedStagingDirsOnVolume); |
| } |
| |
| @Deprecated |
| public File allocateStageDirLegacy(String volumeUuid, boolean isEphemeral) throws IOException { |
| synchronized (mSessions) { |
| try { |
| final int sessionId = allocateSessionIdLocked(); |
| mLegacySessions.put(sessionId, true); |
| final File sessionStageDir = buildTmpSessionDir(sessionId, volumeUuid); |
| prepareStageDir(sessionStageDir); |
| return sessionStageDir; |
| } catch (IllegalStateException e) { |
| throw new IOException(e); |
| } |
| } |
| } |
| |
| @Deprecated |
| public String allocateExternalStageCidLegacy() { |
| synchronized (mSessions) { |
| final int sessionId = allocateSessionIdLocked(); |
| mLegacySessions.put(sessionId, true); |
| return "smdl" + sessionId + ".tmp"; |
| } |
| } |
| |
| @GuardedBy("mSessions") |
| private void readSessionsLocked() { |
| if (LOGD) Slog.v(TAG, "readSessionsLocked()"); |
| |
| mSessions.clear(); |
| |
| FileInputStream fis = null; |
| try { |
| fis = mSessionsFile.openRead(); |
| final TypedXmlPullParser in = Xml.resolvePullParser(fis); |
| |
| int type; |
| while ((type = in.next()) != END_DOCUMENT) { |
| if (type == START_TAG) { |
| final String tag = in.getName(); |
| if (PackageInstallerSession.TAG_SESSION.equals(tag)) { |
| final PackageInstallerSession session; |
| try { |
| session = PackageInstallerSession.readFromXml(in, mInternalCallback, |
| mContext, mPm, mInstallThread.getLooper(), mStagingManager, |
| mSessionsDir, this, mSilentUpdatePolicy); |
| } catch (Exception e) { |
| Slog.e(TAG, "Could not read session", e); |
| continue; |
| } |
| mSessions.put(session.sessionId, session); |
| mAllocatedSessions.put(session.sessionId, true); |
| } |
| } |
| } |
| } catch (FileNotFoundException e) { |
| // Missing sessions are okay, probably first boot |
| } catch (IOException | XmlPullParserException e) { |
| Slog.wtf(TAG, "Failed reading install sessions", e); |
| } finally { |
| IoUtils.closeQuietly(fis); |
| } |
| // After reboot housekeeping. |
| for (int i = 0; i < mSessions.size(); ++i) { |
| PackageInstallerSession session = mSessions.valueAt(i); |
| session.onAfterSessionRead(mSessions); |
| } |
| } |
| |
| @GuardedBy("mSessions") |
| private void expireSessionsLocked() { |
| SparseArray<PackageInstallerSession> tmp = mSessions.clone(); |
| final int n = tmp.size(); |
| for (int i = 0; i < n; ++i) { |
| PackageInstallerSession session = tmp.valueAt(i); |
| if (session.hasParentSessionId()) { |
| // Child sessions will be expired when handling parent sessions |
| continue; |
| } |
| final long age = System.currentTimeMillis() - session.createdMillis; |
| final long timeSinceUpdate = System.currentTimeMillis() - session.getUpdatedMillis(); |
| final boolean valid; |
| if (session.isStaged()) { |
| valid = !session.isStagedAndInTerminalState() |
| || timeSinceUpdate < MAX_TIME_SINCE_UPDATE_MILLIS; |
| } else if (age >= MAX_AGE_MILLIS) { |
| Slog.w(TAG, "Abandoning old session created at " |
| + session.createdMillis); |
| valid = false; |
| } else { |
| valid = true; |
| } |
| if (!valid) { |
| Slog.w(TAG, "Remove old session: " + session.sessionId); |
| // Remove expired sessions as well as child sessions if any |
| removeActiveSession(session); |
| } |
| } |
| } |
| |
| /** |
| * Moves a session (including the child sessions) from mSessions to mHistoricalSessions. |
| * This should only be called on a root session. |
| */ |
| @GuardedBy("mSessions") |
| private void removeActiveSession(PackageInstallerSession session) { |
| mSessions.remove(session.sessionId); |
| addHistoricalSessionLocked(session); |
| for (PackageInstallerSession child : session.getChildSessions()) { |
| mSessions.remove(child.sessionId); |
| addHistoricalSessionLocked(child); |
| } |
| } |
| |
| @GuardedBy("mSessions") |
| private void addHistoricalSessionLocked(PackageInstallerSession session) { |
| CharArrayWriter writer = new CharArrayWriter(); |
| IndentingPrintWriter pw = new IndentingPrintWriter(writer, " "); |
| session.dump(pw); |
| mHistoricalSessions.add(writer.toString()); |
| |
| int installerUid = session.getInstallerUid(); |
| // Increment the number of sessions by this installerUid. |
| mHistoricalSessionsByInstaller.put(installerUid, |
| mHistoricalSessionsByInstaller.get(installerUid) + 1); |
| } |
| |
| @GuardedBy("mSessions") |
| private boolean writeSessionsLocked() { |
| if (LOGD) Slog.v(TAG, "writeSessionsLocked()"); |
| |
| FileOutputStream fos = null; |
| try { |
| fos = mSessionsFile.startWrite(); |
| |
| final TypedXmlSerializer out = Xml.resolveSerializer(fos); |
| out.startDocument(null, true); |
| out.startTag(null, TAG_SESSIONS); |
| final int size = mSessions.size(); |
| for (int i = 0; i < size; i++) { |
| final PackageInstallerSession session = mSessions.valueAt(i); |
| session.write(out, mSessionsDir); |
| } |
| out.endTag(null, TAG_SESSIONS); |
| out.endDocument(); |
| |
| mSessionsFile.finishWrite(fos); |
| return true; |
| } catch (IOException e) { |
| if (fos != null) { |
| mSessionsFile.failWrite(fos); |
| } |
| } |
| |
| return false; |
| } |
| |
| private File buildAppIconFile(int sessionId) { |
| return new File(mSessionsDir, "app_icon." + sessionId + ".png"); |
| } |
| |
| @Override |
| public int createSession(SessionParams params, String installerPackageName, |
| String callingAttributionTag, int userId) { |
| try { |
| return createSessionInternal(params, installerPackageName, callingAttributionTag, |
| userId); |
| } catch (IOException e) { |
| throw ExceptionUtils.wrap(e); |
| } |
| } |
| |
| private int createSessionInternal(SessionParams params, String installerPackageName, |
| String installerAttributionTag, int userId) |
| throws IOException { |
| final int callingUid = Binder.getCallingUid(); |
| final Computer snapshot = mPm.snapshotComputer(); |
| snapshot.enforceCrossUserPermission(callingUid, userId, true, true, "createSession"); |
| |
| if (mPm.isUserRestricted(userId, UserManager.DISALLOW_INSTALL_APPS)) { |
| throw new SecurityException("User restriction prevents installing"); |
| } |
| |
| if (params.dataLoaderParams != null |
| && mContext.checkCallingOrSelfPermission(Manifest.permission.USE_INSTALLER_V2) |
| != PackageManager.PERMISSION_GRANTED) { |
| throw new SecurityException("You need the " |
| + "com.android.permission.USE_INSTALLER_V2 permission " |
| + "to use a data loader"); |
| } |
| |
| // INSTALL_REASON_ROLLBACK allows an app to be rolled back without requiring the ROLLBACK |
| // capability; ensure if this is set as the install reason the app has one of the necessary |
| // signature permissions to perform the rollback. |
| if (params.installReason == PackageManager.INSTALL_REASON_ROLLBACK) { |
| if (mContext.checkCallingOrSelfPermission(Manifest.permission.MANAGE_ROLLBACKS) |
| != PackageManager.PERMISSION_GRANTED && |
| mContext.checkCallingOrSelfPermission(Manifest.permission.TEST_MANAGE_ROLLBACKS) |
| != PackageManager.PERMISSION_GRANTED) { |
| throw new SecurityException( |
| "INSTALL_REASON_ROLLBACK requires the MANAGE_ROLLBACKS permission or the " |
| + "TEST_MANAGE_ROLLBACKS permission"); |
| } |
| } |
| |
| // App package name and label length is restricted so that really long strings aren't |
| // written to disk. |
| if (params.appPackageName != null |
| && params.appPackageName.length() > SessionParams.MAX_PACKAGE_NAME_LENGTH) { |
| params.appPackageName = null; |
| } |
| |
| params.appLabel = TextUtils.trimToSize(params.appLabel, |
| PackageItemInfo.MAX_SAFE_LABEL_LENGTH); |
| |
| String requestedInstallerPackageName = (params.installerPackageName != null |
| && params.installerPackageName.length() < SessionParams.MAX_PACKAGE_NAME_LENGTH) |
| ? params.installerPackageName : installerPackageName; |
| |
| if ((callingUid == Process.SHELL_UID) || (callingUid == Process.ROOT_UID) |
| || PackageInstallerSession.isSystemDataLoaderInstallation(params)) { |
| params.installFlags |= PackageManager.INSTALL_FROM_ADB; |
| // adb installs can override the installingPackageName, but not the |
| // initiatingPackageName |
| installerPackageName = null; |
| } else { |
| if (callingUid != Process.SYSTEM_UID) { |
| // The supplied installerPackageName must always belong to the calling app. |
| mAppOps.checkPackage(callingUid, installerPackageName); |
| } |
| // Only apps with INSTALL_PACKAGES are allowed to set an installer that is not the |
| // caller. |
| if (!TextUtils.equals(requestedInstallerPackageName, installerPackageName)) { |
| if (mContext.checkCallingOrSelfPermission(Manifest.permission.INSTALL_PACKAGES) |
| != PackageManager.PERMISSION_GRANTED) { |
| mAppOps.checkPackage(callingUid, requestedInstallerPackageName); |
| } |
| } |
| |
| params.installFlags &= ~PackageManager.INSTALL_FROM_ADB; |
| params.installFlags &= ~PackageManager.INSTALL_ALL_USERS; |
| params.installFlags |= PackageManager.INSTALL_REPLACE_EXISTING; |
| if ((params.installFlags & PackageManager.INSTALL_VIRTUAL_PRELOAD) != 0 |
| && !mPm.isCallerVerifier(snapshot, callingUid)) { |
| params.installFlags &= ~PackageManager.INSTALL_VIRTUAL_PRELOAD; |
| } |
| if (mContext.checkCallingOrSelfPermission(Manifest.permission.INSTALL_TEST_ONLY_PACKAGE) |
| != PackageManager.PERMISSION_GRANTED) { |
| params.installFlags &= ~PackageManager.INSTALL_ALLOW_TEST; |
| } |
| } |
| |
| String originatingPackageName = null; |
| if (params.originatingUid != SessionParams.UID_UNKNOWN |
| && params.originatingUid != callingUid) { |
| String[] packages = snapshot.getPackagesForUid(params.originatingUid); |
| if (packages != null && packages.length > 0) { |
| // Choose an arbitrary representative package in the case of a shared UID. |
| originatingPackageName = packages[0]; |
| } |
| } |
| |
| if (Build.IS_DEBUGGABLE || isCalledBySystemOrShell(callingUid)) { |
| params.installFlags |= PackageManager.INSTALL_ALLOW_DOWNGRADE; |
| } else { |
| params.installFlags &= ~PackageManager.INSTALL_ALLOW_DOWNGRADE; |
| params.installFlags &= ~PackageManager.INSTALL_REQUEST_DOWNGRADE; |
| } |
| |
| if ((params.installFlags & ADB_DEV_MODE) != ADB_DEV_MODE) { |
| // Only tools under specific conditions (test app installed through ADB, and |
| // verification disabled flag specified) can disable verification. |
| params.installFlags &= ~PackageManager.INSTALL_DISABLE_VERIFICATION; |
| } |
| |
| boolean isApex = (params.installFlags & PackageManager.INSTALL_APEX) != 0; |
| if (isApex) { |
| if (mContext.checkCallingOrSelfPermission(Manifest.permission.INSTALL_PACKAGE_UPDATES) |
| == PackageManager.PERMISSION_DENIED |
| && mContext.checkCallingOrSelfPermission(Manifest.permission.INSTALL_PACKAGES) |
| == PackageManager.PERMISSION_DENIED) { |
| throw new SecurityException("Not allowed to perform APEX updates"); |
| } |
| } else if (params.isStaged) { |
| mContext.enforceCallingOrSelfPermission(Manifest.permission.INSTALL_PACKAGES, TAG); |
| } |
| |
| if (isApex) { |
| if (!mApexManager.isApexSupported()) { |
| throw new IllegalArgumentException( |
| "This device doesn't support the installation of APEX files"); |
| } |
| if (params.isMultiPackage) { |
| throw new IllegalArgumentException("A multi-session can't be set as APEX."); |
| } |
| if (isCalledBySystemOrShell(callingUid) || mBypassNextAllowedApexUpdateCheck) { |
| params.installFlags |= PackageManager.INSTALL_DISABLE_ALLOWED_APEX_UPDATE_CHECK; |
| } else { |
| // Only specific APEX updates (installed through ADB, or for CTS tests) can disable |
| // allowed APEX update check. |
| params.installFlags &= ~PackageManager.INSTALL_DISABLE_ALLOWED_APEX_UPDATE_CHECK; |
| } |
| } |
| |
| if ((params.installFlags & PackageManager.INSTALL_INSTANT_APP) != 0 |
| && !isCalledBySystemOrShell(callingUid) |
| && (snapshot.getFlagsForUid(callingUid) & ApplicationInfo.FLAG_SYSTEM) |
| == 0) { |
| throw new SecurityException( |
| "Only system apps could use the PackageManager.INSTALL_INSTANT_APP flag."); |
| } |
| |
| if (params.isStaged && !isCalledBySystemOrShell(callingUid)) { |
| if (!mBypassNextStagedInstallerCheck |
| && !isStagedInstallerAllowed(requestedInstallerPackageName)) { |
| throw new SecurityException("Installer not allowed to commit staged install"); |
| } |
| } |
| if (isApex && !isCalledBySystemOrShell(callingUid)) { |
| if (!mBypassNextStagedInstallerCheck |
| && !isStagedInstallerAllowed(requestedInstallerPackageName)) { |
| throw new SecurityException( |
| "Installer not allowed to commit non-staged APEX install"); |
| } |
| } |
| |
| mBypassNextStagedInstallerCheck = false; |
| mBypassNextAllowedApexUpdateCheck = false; |
| |
| if (!params.isMultiPackage) { |
| // Only system components can circumvent runtime permissions when installing. |
| if ((params.installFlags & PackageManager.INSTALL_GRANT_RUNTIME_PERMISSIONS) != 0 |
| && mContext.checkCallingOrSelfPermission(Manifest.permission |
| .INSTALL_GRANT_RUNTIME_PERMISSIONS) == PackageManager.PERMISSION_DENIED) { |
| throw new SecurityException("You need the " |
| + "android.permission.INSTALL_GRANT_RUNTIME_PERMISSIONS permission " |
| + "to use the PackageManager.INSTALL_GRANT_RUNTIME_PERMISSIONS flag"); |
| } |
| |
| // Defensively resize giant app icons |
| if (params.appIcon != null) { |
| final ActivityManager am = (ActivityManager) mContext.getSystemService( |
| Context.ACTIVITY_SERVICE); |
| final int iconSize = am.getLauncherLargeIconSize(); |
| if ((params.appIcon.getWidth() > iconSize * 2) |
| || (params.appIcon.getHeight() > iconSize * 2)) { |
| params.appIcon = Bitmap.createScaledBitmap(params.appIcon, iconSize, iconSize, |
| true); |
| } |
| } |
| |
| switch (params.mode) { |
| case SessionParams.MODE_FULL_INSTALL: |
| case SessionParams.MODE_INHERIT_EXISTING: |
| break; |
| default: |
| throw new IllegalArgumentException("Invalid install mode: " + params.mode); |
| } |
| |
| // If caller requested explicit location, validity check it, otherwise |
| // resolve the best internal or adopted location. |
| if ((params.installFlags & PackageManager.INSTALL_INTERNAL) != 0) { |
| if (!InstallLocationUtils.fitsOnInternal(mContext, params)) { |
| throw new IOException("No suitable internal storage available"); |
| } |
| } else if ((params.installFlags & PackageManager.INSTALL_FORCE_VOLUME_UUID) != 0) { |
| // For now, installs to adopted media are treated as internal from |
| // an install flag point-of-view. |
| params.installFlags |= PackageManager.INSTALL_INTERNAL; |
| } else { |
| params.installFlags |= PackageManager.INSTALL_INTERNAL; |
| |
| // Resolve best location for install, based on combination of |
| // requested install flags, delta size, and manifest settings. |
| final long ident = Binder.clearCallingIdentity(); |
| try { |
| params.volumeUuid = InstallLocationUtils.resolveInstallVolume(mContext, params); |
| } finally { |
| Binder.restoreCallingIdentity(ident); |
| } |
| } |
| } |
| |
| final int sessionId; |
| final PackageInstallerSession session; |
| synchronized (mSessions) { |
| // Check that the installer does not have too many active sessions. |
| final int activeCount = getSessionCount(mSessions, callingUid); |
| if (mContext.checkCallingOrSelfPermission(Manifest.permission.INSTALL_PACKAGES) |
| == PackageManager.PERMISSION_GRANTED) { |
| if (activeCount >= MAX_ACTIVE_SESSIONS_WITH_PERMISSION) { |
| throw new IllegalStateException( |
| "Too many active sessions for UID " + callingUid); |
| } |
| } else if (activeCount >= MAX_ACTIVE_SESSIONS_NO_PERMISSION) { |
| throw new IllegalStateException( |
| "Too many active sessions for UID " + callingUid); |
| } |
| final int historicalCount = mHistoricalSessionsByInstaller.get(callingUid); |
| if (historicalCount >= MAX_HISTORICAL_SESSIONS) { |
| throw new IllegalStateException( |
| "Too many historical sessions for UID " + callingUid); |
| } |
| |
| sessionId = allocateSessionIdLocked(); |
| } |
| |
| final long createdMillis = System.currentTimeMillis(); |
| // We're staging to exactly one location |
| File stageDir = null; |
| String stageCid = null; |
| if (!params.isMultiPackage) { |
| if ((params.installFlags & PackageManager.INSTALL_INTERNAL) != 0) { |
| stageDir = buildSessionDir(sessionId, params); |
| } else { |
| stageCid = buildExternalStageCid(sessionId); |
| } |
| } |
| |
| // reset the force queryable param if it's not called by an approved caller. |
| if (params.forceQueryableOverride) { |
| if (callingUid != Process.SHELL_UID && callingUid != Process.ROOT_UID) { |
| params.forceQueryableOverride = false; |
| } |
| } |
| InstallSource installSource = InstallSource.create(installerPackageName, |
| originatingPackageName, requestedInstallerPackageName, |
| installerAttributionTag, params.packageSource); |
| session = new PackageInstallerSession(mInternalCallback, mContext, mPm, this, |
| mSilentUpdatePolicy, mInstallThread.getLooper(), mStagingManager, sessionId, |
| userId, callingUid, installSource, params, createdMillis, 0L, stageDir, stageCid, |
| null, null, false, false, false, false, null, SessionInfo.INVALID_ID, |
| false, false, false, PackageManager.INSTALL_UNKNOWN, ""); |
| |
| synchronized (mSessions) { |
| mSessions.put(sessionId, session); |
| } |
| |
| mCallbacks.notifySessionCreated(session.sessionId, session.userId); |
| |
| mSettingsWriteRequest.schedule(); |
| if (LOGD) { |
| Slog.d(TAG, "Created session id=" + sessionId + " staged=" + params.isStaged); |
| } |
| return sessionId; |
| } |
| |
| private boolean isCalledBySystemOrShell(int callingUid) { |
| return callingUid == Process.SYSTEM_UID || callingUid == Process.ROOT_UID |
| || callingUid == Process.SHELL_UID; |
| } |
| |
| private boolean isStagedInstallerAllowed(String installerName) { |
| return SystemConfig.getInstance().getWhitelistedStagedInstallers().contains(installerName); |
| } |
| |
| @Override |
| public void updateSessionAppIcon(int sessionId, Bitmap appIcon) { |
| synchronized (mSessions) { |
| final PackageInstallerSession session = mSessions.get(sessionId); |
| if (session == null || !isCallingUidOwner(session)) { |
| throw new SecurityException("Caller has no access to session " + sessionId); |
| } |
| |
| // Defensively resize giant app icons |
| if (appIcon != null) { |
| final ActivityManager am = (ActivityManager) mContext.getSystemService( |
| Context.ACTIVITY_SERVICE); |
| final int iconSize = am.getLauncherLargeIconSize(); |
| if ((appIcon.getWidth() > iconSize * 2) |
| || (appIcon.getHeight() > iconSize * 2)) { |
| appIcon = Bitmap.createScaledBitmap(appIcon, iconSize, iconSize, true); |
| } |
| } |
| |
| session.params.appIcon = appIcon; |
| session.params.appIconLastModified = -1; |
| |
| mInternalCallback.onSessionBadgingChanged(session); |
| } |
| } |
| |
| @Override |
| public void updateSessionAppLabel(int sessionId, String appLabel) { |
| synchronized (mSessions) { |
| final PackageInstallerSession session = mSessions.get(sessionId); |
| if (session == null || !isCallingUidOwner(session)) { |
| throw new SecurityException("Caller has no access to session " + sessionId); |
| } |
| session.params.appLabel = appLabel; |
| mInternalCallback.onSessionBadgingChanged(session); |
| } |
| } |
| |
| @Override |
| public void abandonSession(int sessionId) { |
| synchronized (mSessions) { |
| final PackageInstallerSession session = mSessions.get(sessionId); |
| if (session == null || !isCallingUidOwner(session)) { |
| throw new SecurityException("Caller has no access to session " + sessionId); |
| } |
| session.abandon(); |
| } |
| } |
| |
| @Override |
| public IPackageInstallerSession openSession(int sessionId) { |
| try { |
| return openSessionInternal(sessionId); |
| } catch (IOException e) { |
| throw ExceptionUtils.wrap(e); |
| } |
| } |
| |
| private boolean checkOpenSessionAccess(final PackageInstallerSession session) { |
| if (session == null) { |
| return false; |
| } |
| if (isCallingUidOwner(session)) { |
| return true; |
| } |
| // Package verifiers have access to openSession for sealed sessions. |
| if (session.isSealed() && mContext.checkCallingOrSelfPermission( |
| android.Manifest.permission.PACKAGE_VERIFICATION_AGENT) |
| == PackageManager.PERMISSION_GRANTED) { |
| return true; |
| } |
| return false; |
| } |
| |
| private IPackageInstallerSession openSessionInternal(int sessionId) throws IOException { |
| synchronized (mSessions) { |
| final PackageInstallerSession session = mSessions.get(sessionId); |
| if (!checkOpenSessionAccess(session)) { |
| throw new SecurityException("Caller has no access to session " + sessionId); |
| } |
| session.open(); |
| return session; |
| } |
| } |
| |
| @GuardedBy("mSessions") |
| private int allocateSessionIdLocked() { |
| int n = 0; |
| int sessionId; |
| do { |
| sessionId = mRandom.nextInt(Integer.MAX_VALUE - 1) + 1; |
| if (!mAllocatedSessions.get(sessionId, false)) { |
| mAllocatedSessions.put(sessionId, true); |
| return sessionId; |
| } |
| } while (n++ < 32); |
| |
| throw new IllegalStateException("Failed to allocate session ID"); |
| } |
| |
| static boolean isStageName(String name) { |
| final boolean isFile = name.startsWith("vmdl") && name.endsWith(".tmp"); |
| final boolean isContainer = name.startsWith("smdl") && name.endsWith(".tmp"); |
| final boolean isLegacyContainer = name.startsWith("smdl2tmp"); |
| return isFile || isContainer || isLegacyContainer; |
| } |
| |
| static int tryParseSessionId(@NonNull String tmpSessionDir) |
| throws IllegalArgumentException { |
| if (!tmpSessionDir.startsWith("vmdl") || !tmpSessionDir.endsWith(".tmp")) { |
| throw new IllegalArgumentException("Not a temporary session directory"); |
| } |
| String sessionId = tmpSessionDir.substring("vmdl".length(), |
| tmpSessionDir.length() - ".tmp".length()); |
| return Integer.parseInt(sessionId); |
| } |
| |
| private File getTmpSessionDir(String volumeUuid) { |
| return Environment.getDataAppDirectory(volumeUuid); |
| } |
| |
| private File buildTmpSessionDir(int sessionId, String volumeUuid) { |
| final File sessionStagingDir = getTmpSessionDir(volumeUuid); |
| return new File(sessionStagingDir, "vmdl" + sessionId + ".tmp"); |
| } |
| |
| private File buildSessionDir(int sessionId, SessionParams params) { |
| if (params.isStaged || (params.installFlags & PackageManager.INSTALL_APEX) != 0) { |
| final File sessionStagingDir = Environment.getDataStagingDirectory(params.volumeUuid); |
| return new File(sessionStagingDir, "session_" + sessionId); |
| } |
| final File result = buildTmpSessionDir(sessionId, params.volumeUuid); |
| if (DEBUG && !Objects.equals(tryParseSessionId(result.getName()), sessionId)) { |
| throw new RuntimeException( |
| "session folder format is off: " + result.getName() + " (" + sessionId + ")"); |
| } |
| return result; |
| } |
| |
| static void prepareStageDir(File stageDir) throws IOException { |
| if (stageDir.exists()) { |
| throw new IOException("Session dir already exists: " + stageDir); |
| } |
| |
| try { |
| Os.mkdir(stageDir.getAbsolutePath(), 0775); |
| Os.chmod(stageDir.getAbsolutePath(), 0775); |
| } catch (ErrnoException e) { |
| // This purposefully throws if directory already exists |
| throw new IOException("Failed to prepare session dir: " + stageDir, e); |
| } |
| |
| if (!SELinux.restorecon(stageDir)) { |
| throw new IOException("Failed to restorecon session dir: " + stageDir); |
| } |
| } |
| |
| private String buildExternalStageCid(int sessionId) { |
| return "smdl" + sessionId + ".tmp"; |
| } |
| |
| private boolean shouldFilterSession(@NonNull Computer snapshot, int uid, SessionInfo info) { |
| if (info == null) { |
| return false; |
| } |
| return uid != info.getInstallerUid() |
| && !snapshot.canQueryPackage(uid, info.getAppPackageName()); |
| } |
| |
| @Override |
| public SessionInfo getSessionInfo(int sessionId) { |
| final int callingUid = Binder.getCallingUid(); |
| final SessionInfo result; |
| synchronized (mSessions) { |
| final PackageInstallerSession session = mSessions.get(sessionId); |
| result = (session != null && !(session.isStaged() && session.isDestroyed())) |
| ? session.generateInfoForCaller(true /* includeIcon */, callingUid) |
| : null; |
| } |
| return shouldFilterSession(mPm.snapshotComputer(), callingUid, result) ? null : result; |
| } |
| |
| @Override |
| public ParceledListSlice<SessionInfo> getStagedSessions() { |
| final int callingUid = Binder.getCallingUid(); |
| final List<SessionInfo> result = new ArrayList<>(); |
| synchronized (mSessions) { |
| for (int i = 0; i < mSessions.size(); i++) { |
| final PackageInstallerSession session = mSessions.valueAt(i); |
| if (session.isStaged() && !session.isDestroyed()) { |
| result.add(session.generateInfoForCaller(false /* includeIcon */, callingUid)); |
| } |
| } |
| } |
| final Computer snapshot = mPm.snapshotComputer(); |
| result.removeIf(info -> shouldFilterSession(snapshot, callingUid, info)); |
| return new ParceledListSlice<>(result); |
| } |
| |
| @Override |
| public ParceledListSlice<SessionInfo> getAllSessions(int userId) { |
| final int callingUid = Binder.getCallingUid(); |
| final Computer snapshot = mPm.snapshotComputer(); |
| snapshot.enforceCrossUserPermission(callingUid, userId, true, false, "getAllSessions"); |
| |
| final List<SessionInfo> result = new ArrayList<>(); |
| synchronized (mSessions) { |
| for (int i = 0; i < mSessions.size(); i++) { |
| final PackageInstallerSession session = mSessions.valueAt(i); |
| if (session.userId == userId && !session.hasParentSessionId() |
| && !(session.isStaged() && session.isDestroyed())) { |
| result.add(session.generateInfoForCaller(false /* includeIcon */, callingUid)); |
| } |
| } |
| } |
| result.removeIf(info -> shouldFilterSession(snapshot, callingUid, info)); |
| return new ParceledListSlice<>(result); |
| } |
| |
| @Override |
| public ParceledListSlice<SessionInfo> getMySessions(String installerPackageName, int userId) { |
| final Computer snapshot = mPm.snapshotComputer(); |
| final int callingUid = Binder.getCallingUid(); |
| snapshot.enforceCrossUserPermission(callingUid, userId, true, false, "getMySessions"); |
| mAppOps.checkPackage(callingUid, installerPackageName); |
| |
| final List<SessionInfo> result = new ArrayList<>(); |
| synchronized (mSessions) { |
| for (int i = 0; i < mSessions.size(); i++) { |
| final PackageInstallerSession session = mSessions.valueAt(i); |
| |
| SessionInfo info = |
| session.generateInfoForCaller(false /*withIcon*/, Process.SYSTEM_UID); |
| if (Objects.equals(info.getInstallerPackageName(), installerPackageName) |
| && session.userId == userId && !session.hasParentSessionId() |
| && isCallingUidOwner(session)) { |
| result.add(info); |
| } |
| } |
| } |
| return new ParceledListSlice<>(result); |
| } |
| |
| @Override |
| public void uninstall(VersionedPackage versionedPackage, String callerPackageName, int flags, |
| IntentSender statusReceiver, int userId) { |
| final Computer snapshot = mPm.snapshotComputer(); |
| final int callingUid = Binder.getCallingUid(); |
| snapshot.enforceCrossUserPermission(callingUid, userId, true, true, "uninstall"); |
| if ((callingUid != Process.SHELL_UID) && (callingUid != Process.ROOT_UID)) { |
| mAppOps.checkPackage(callingUid, callerPackageName); |
| } |
| |
| // Check whether the caller is device owner or affiliated profile owner, in which case we do |
| // it silently. |
| DevicePolicyManagerInternal dpmi = |
| LocalServices.getService(DevicePolicyManagerInternal.class); |
| final boolean canSilentlyInstallPackage = |
| dpmi != null && dpmi.canSilentlyInstallPackage(callerPackageName, callingUid); |
| |
| final PackageDeleteObserverAdapter adapter = new PackageDeleteObserverAdapter(mContext, |
| statusReceiver, versionedPackage.getPackageName(), |
| canSilentlyInstallPackage, userId); |
| if (mContext.checkCallingOrSelfPermission(android.Manifest.permission.DELETE_PACKAGES) |
| == PackageManager.PERMISSION_GRANTED) { |
| // Sweet, call straight through! |
| mPm.deletePackageVersioned(versionedPackage, adapter.getBinder(), userId, flags); |
| } else if (canSilentlyInstallPackage) { |
| // Allow the device owner and affiliated profile owner to silently delete packages |
| // Need to clear the calling identity to get DELETE_PACKAGES permission |
| final long ident = Binder.clearCallingIdentity(); |
| try { |
| mPm.deletePackageVersioned(versionedPackage, adapter.getBinder(), userId, flags); |
| } finally { |
| Binder.restoreCallingIdentity(ident); |
| } |
| DevicePolicyEventLogger |
| .createEvent(DevicePolicyEnums.UNINSTALL_PACKAGE) |
| .setAdmin(callerPackageName) |
| .write(); |
| } else { |
| ApplicationInfo appInfo = snapshot.getApplicationInfo(callerPackageName, 0, userId); |
| if (appInfo.targetSdkVersion >= Build.VERSION_CODES.P) { |
| mContext.enforceCallingOrSelfPermission(Manifest.permission.REQUEST_DELETE_PACKAGES, |
| null); |
| } |
| |
| // Take a short detour to confirm with user |
| final Intent intent = new Intent(Intent.ACTION_UNINSTALL_PACKAGE); |
| intent.setData(Uri.fromParts("package", versionedPackage.getPackageName(), null)); |
| intent.putExtra(PackageInstaller.EXTRA_CALLBACK, adapter.getBinder().asBinder()); |
| adapter.onUserActionRequired(intent); |
| } |
| } |
| |
| @Override |
| public void uninstallExistingPackage(VersionedPackage versionedPackage, |
| String callerPackageName, IntentSender statusReceiver, int userId) { |
| final int callingUid = Binder.getCallingUid(); |
| mContext.enforceCallingOrSelfPermission(Manifest.permission.DELETE_PACKAGES, null); |
| final Computer snapshot = mPm.snapshotComputer(); |
| snapshot.enforceCrossUserPermission(callingUid, userId, true, true, "uninstall"); |
| if ((callingUid != Process.SHELL_UID) && (callingUid != Process.ROOT_UID)) { |
| mAppOps.checkPackage(callingUid, callerPackageName); |
| } |
| |
| final PackageDeleteObserverAdapter adapter = new PackageDeleteObserverAdapter(mContext, |
| statusReceiver, versionedPackage.getPackageName(), false, userId); |
| mPm.deleteExistingPackageAsUser(versionedPackage, adapter.getBinder(), userId); |
| } |
| |
| @Override |
| public void installExistingPackage(String packageName, int installFlags, int installReason, |
| IntentSender statusReceiver, int userId, List<String> allowListedPermissions) { |
| final InstallPackageHelper installPackageHelper = new InstallPackageHelper(mPm); |
| installPackageHelper.installExistingPackageAsUser(packageName, userId, installFlags, |
| installReason, allowListedPermissions, statusReceiver); |
| } |
| |
| @Override |
| public void setPermissionsResult(int sessionId, boolean accepted) { |
| mContext.enforceCallingOrSelfPermission(android.Manifest.permission.INSTALL_PACKAGES, TAG); |
| |
| synchronized (mSessions) { |
| PackageInstallerSession session = mSessions.get(sessionId); |
| if (session != null) { |
| session.setPermissionsResult(accepted); |
| } |
| } |
| } |
| |
| @Override |
| public void registerCallback(IPackageInstallerCallback callback, int userId) { |
| final Computer snapshot = mPm.snapshotComputer(); |
| snapshot.enforceCrossUserPermission(Binder.getCallingUid(), userId, true, false, |
| "registerCallback"); |
| registerCallback(callback, eventUserId -> userId == eventUserId); |
| } |
| |
| /** |
| * Assume permissions already checked and caller's identity cleared |
| */ |
| public void registerCallback(IPackageInstallerCallback callback, IntPredicate userCheck) { |
| mCallbacks.register(callback, new BroadcastCookie(Binder.getCallingUid(), userCheck)); |
| } |
| |
| @Override |
| public void unregisterCallback(IPackageInstallerCallback callback) { |
| mCallbacks.unregister(callback); |
| } |
| |
| @Override |
| public PackageInstallerSession getSession(int sessionId) { |
| synchronized (mSessions) { |
| return mSessions.get(sessionId); |
| } |
| } |
| |
| @Override |
| public PackageSessionVerifier getSessionVerifier() { |
| return mSessionVerifier; |
| } |
| |
| @Override |
| public void bypassNextStagedInstallerCheck(boolean value) { |
| if (!isCalledBySystemOrShell(Binder.getCallingUid())) { |
| throw new SecurityException("Caller not allowed to bypass staged installer check"); |
| } |
| mBypassNextStagedInstallerCheck = value; |
| } |
| |
| @Override |
| public void bypassNextAllowedApexUpdateCheck(boolean value) { |
| if (!isCalledBySystemOrShell(Binder.getCallingUid())) { |
| throw new SecurityException("Caller not allowed to bypass allowed apex update check"); |
| } |
| mBypassNextAllowedApexUpdateCheck = value; |
| } |
| |
| /** |
| * Set an installer to allow for the unlimited silent updates. |
| */ |
| @Override |
| public void setAllowUnlimitedSilentUpdates(@Nullable String installerPackageName) { |
| if (!isCalledBySystemOrShell(Binder.getCallingUid())) { |
| throw new SecurityException("Caller not allowed to unlimite silent updates"); |
| } |
| mSilentUpdatePolicy.setAllowUnlimitedSilentUpdates(installerPackageName); |
| } |
| |
| /** |
| * Set the silent updates throttle time in seconds. |
| */ |
| @Override |
| public void setSilentUpdatesThrottleTime(long throttleTimeInSeconds) { |
| if (!isCalledBySystemOrShell(Binder.getCallingUid())) { |
| throw new SecurityException("Caller not allowed to set silent updates throttle time"); |
| } |
| mSilentUpdatePolicy.setSilentUpdatesThrottleTime(throttleTimeInSeconds); |
| } |
| |
| private static int getSessionCount(SparseArray<PackageInstallerSession> sessions, |
| int installerUid) { |
| int count = 0; |
| final int size = sessions.size(); |
| for (int i = 0; i < size; i++) { |
| final PackageInstallerSession session = sessions.valueAt(i); |
| if (session.getInstallerUid() == installerUid) { |
| count++; |
| } |
| } |
| return count; |
| } |
| |
| private boolean isCallingUidOwner(PackageInstallerSession session) { |
| final int callingUid = Binder.getCallingUid(); |
| if (callingUid == Process.ROOT_UID) { |
| return true; |
| } else { |
| return (session != null) && (callingUid == session.getInstallerUid()); |
| } |
| } |
| |
| private boolean shouldFilterSession(@NonNull Computer snapshot, int uid, int sessionId) { |
| final PackageInstallerSession session = getSession(sessionId); |
| if (session == null) { |
| return false; |
| } |
| return uid != session.getInstallerUid() |
| && !snapshot.canQueryPackage(uid, session.getPackageName()); |
| } |
| |
| static class PackageDeleteObserverAdapter extends PackageDeleteObserver { |
| private final Context mContext; |
| private final IntentSender mTarget; |
| private final String mPackageName; |
| private final Notification mNotification; |
| |
| public PackageDeleteObserverAdapter(Context context, IntentSender target, |
| String packageName, boolean showNotification, int userId) { |
| mContext = context; |
| mTarget = target; |
| mPackageName = packageName; |
| if (showNotification) { |
| mNotification = buildSuccessNotification(mContext, |
| getDeviceOwnerDeletedPackageMsg(), |
| packageName, |
| userId); |
| } else { |
| mNotification = null; |
| } |
| } |
| |
| private String getDeviceOwnerDeletedPackageMsg() { |
| DevicePolicyManager dpm = mContext.getSystemService(DevicePolicyManager.class); |
| return dpm.getResources().getString(PACKAGE_DELETED_BY_DO, |
| () -> mContext.getString(R.string.package_updated_device_owner)); |
| } |
| |
| @Override |
| public void onUserActionRequired(Intent intent) { |
| if (mTarget == null) { |
| return; |
| } |
| final Intent fillIn = new Intent(); |
| fillIn.putExtra(PackageInstaller.EXTRA_PACKAGE_NAME, mPackageName); |
| fillIn.putExtra(PackageInstaller.EXTRA_STATUS, |
| PackageInstaller.STATUS_PENDING_USER_ACTION); |
| fillIn.putExtra(Intent.EXTRA_INTENT, intent); |
| try { |
| mTarget.sendIntent(mContext, 0, fillIn, null, null); |
| } catch (SendIntentException ignored) { |
| } |
| } |
| |
| @Override |
| public void onPackageDeleted(String basePackageName, int returnCode, String msg) { |
| if (PackageManager.DELETE_SUCCEEDED == returnCode && mNotification != null) { |
| NotificationManager notificationManager = (NotificationManager) |
| mContext.getSystemService(Context.NOTIFICATION_SERVICE); |
| notificationManager.notify(basePackageName, |
| SystemMessage.NOTE_PACKAGE_STATE, |
| mNotification); |
| } |
| if (mTarget == null) { |
| return; |
| } |
| final Intent fillIn = new Intent(); |
| fillIn.putExtra(PackageInstaller.EXTRA_PACKAGE_NAME, mPackageName); |
| fillIn.putExtra(PackageInstaller.EXTRA_STATUS, |
| PackageManager.deleteStatusToPublicStatus(returnCode)); |
| fillIn.putExtra(PackageInstaller.EXTRA_STATUS_MESSAGE, |
| PackageManager.deleteStatusToString(returnCode, msg)); |
| fillIn.putExtra(PackageInstaller.EXTRA_LEGACY_STATUS, returnCode); |
| try { |
| mTarget.sendIntent(mContext, 0, fillIn, null, null); |
| } catch (SendIntentException ignored) { |
| } |
| } |
| } |
| |
| /** |
| * Build a notification for package installation / deletion by device owners that is shown if |
| * the operation succeeds. |
| */ |
| static Notification buildSuccessNotification(Context context, String contentText, |
| String basePackageName, int userId) { |
| PackageInfo packageInfo = null; |
| try { |
| packageInfo = AppGlobals.getPackageManager().getPackageInfo( |
| basePackageName, PackageManager.MATCH_STATIC_SHARED_AND_SDK_LIBRARIES, userId); |
| } catch (RemoteException ignored) { |
| } |
| if (packageInfo == null || packageInfo.applicationInfo == null) { |
| Slog.w(TAG, "Notification not built for package: " + basePackageName); |
| return null; |
| } |
| PackageManager pm = context.getPackageManager(); |
| Bitmap packageIcon = ImageUtils.buildScaledBitmap( |
| packageInfo.applicationInfo.loadIcon(pm), |
| context.getResources().getDimensionPixelSize( |
| android.R.dimen.notification_large_icon_width), |
| context.getResources().getDimensionPixelSize( |
| android.R.dimen.notification_large_icon_height)); |
| CharSequence packageLabel = packageInfo.applicationInfo.loadLabel(pm); |
| return new Notification.Builder(context, SystemNotificationChannels.DEVICE_ADMIN) |
| .setSmallIcon(R.drawable.ic_check_circle_24px) |
| .setColor(context.getResources().getColor( |
| R.color.system_notification_accent_color)) |
| .setContentTitle(packageLabel) |
| .setContentText(contentText) |
| .setStyle(new Notification.BigTextStyle().bigText(contentText)) |
| .setLargeIcon(packageIcon) |
| .build(); |
| } |
| |
| public static <E> ArraySet<E> newArraySet(E... elements) { |
| final ArraySet<E> set = new ArraySet<E>(); |
| if (elements != null) { |
| set.ensureCapacity(elements.length); |
| Collections.addAll(set, elements); |
| } |
| return set; |
| } |
| |
| private static final class BroadcastCookie { |
| public final int callingUid; |
| public final IntPredicate userCheck; |
| |
| BroadcastCookie(int callingUid, IntPredicate userCheck) { |
| this.callingUid = callingUid; |
| this.userCheck = userCheck; |
| } |
| } |
| |
| private class Callbacks extends Handler { |
| private static final int MSG_SESSION_CREATED = 1; |
| private static final int MSG_SESSION_BADGING_CHANGED = 2; |
| private static final int MSG_SESSION_ACTIVE_CHANGED = 3; |
| private static final int MSG_SESSION_PROGRESS_CHANGED = 4; |
| private static final int MSG_SESSION_FINISHED = 5; |
| |
| private final RemoteCallbackList<IPackageInstallerCallback> |
| mCallbacks = new RemoteCallbackList<>(); |
| |
| public Callbacks(Looper looper) { |
| super(looper); |
| } |
| |
| public void register(IPackageInstallerCallback callback, BroadcastCookie cookie) { |
| mCallbacks.register(callback, cookie); |
| } |
| |
| public void unregister(IPackageInstallerCallback callback) { |
| mCallbacks.unregister(callback); |
| } |
| |
| @Override |
| public void handleMessage(Message msg) { |
| final int sessionId = msg.arg1; |
| final int userId = msg.arg2; |
| final int n = mCallbacks.beginBroadcast(); |
| final Computer snapshot = mPm.snapshotComputer(); |
| for (int i = 0; i < n; i++) { |
| final IPackageInstallerCallback callback = mCallbacks.getBroadcastItem(i); |
| final BroadcastCookie cookie = (BroadcastCookie) mCallbacks.getBroadcastCookie(i); |
| if (cookie.userCheck.test(userId) |
| && !shouldFilterSession(snapshot, cookie.callingUid, sessionId)) { |
| try { |
| invokeCallback(callback, msg); |
| } catch (RemoteException ignored) { |
| } |
| } |
| } |
| mCallbacks.finishBroadcast(); |
| } |
| |
| private void invokeCallback(IPackageInstallerCallback callback, Message msg) |
| throws RemoteException { |
| final int sessionId = msg.arg1; |
| switch (msg.what) { |
| case MSG_SESSION_CREATED: |
| callback.onSessionCreated(sessionId); |
| break; |
| case MSG_SESSION_BADGING_CHANGED: |
| callback.onSessionBadgingChanged(sessionId); |
| break; |
| case MSG_SESSION_ACTIVE_CHANGED: |
| callback.onSessionActiveChanged(sessionId, (boolean) msg.obj); |
| break; |
| case MSG_SESSION_PROGRESS_CHANGED: |
| callback.onSessionProgressChanged(sessionId, (float) msg.obj); |
| break; |
| case MSG_SESSION_FINISHED: |
| callback.onSessionFinished(sessionId, (boolean) msg.obj); |
| break; |
| } |
| } |
| |
| private void notifySessionCreated(int sessionId, int userId) { |
| obtainMessage(MSG_SESSION_CREATED, sessionId, userId).sendToTarget(); |
| } |
| |
| private void notifySessionBadgingChanged(int sessionId, int userId) { |
| obtainMessage(MSG_SESSION_BADGING_CHANGED, sessionId, userId).sendToTarget(); |
| } |
| |
| private void notifySessionActiveChanged(int sessionId, int userId, boolean active) { |
| obtainMessage(MSG_SESSION_ACTIVE_CHANGED, sessionId, userId, active).sendToTarget(); |
| } |
| |
| private void notifySessionProgressChanged(int sessionId, int userId, float progress) { |
| obtainMessage(MSG_SESSION_PROGRESS_CHANGED, sessionId, userId, progress).sendToTarget(); |
| } |
| |
| public void notifySessionFinished(int sessionId, int userId, boolean success) { |
| obtainMessage(MSG_SESSION_FINISHED, sessionId, userId, success).sendToTarget(); |
| } |
| } |
| |
| static class ParentChildSessionMap { |
| private TreeMap<PackageInstallerSession, TreeSet<PackageInstallerSession>> mSessionMap; |
| |
| private final Comparator<PackageInstallerSession> mSessionCreationComparator = |
| Comparator.comparingLong( |
| (PackageInstallerSession sess) -> sess != null ? sess.createdMillis : -1) |
| .thenComparingInt(sess -> sess != null ? sess.sessionId : -1); |
| |
| ParentChildSessionMap() { |
| mSessionMap = new TreeMap<>(mSessionCreationComparator); |
| } |
| |
| boolean containsSession() { |
| return !(mSessionMap.isEmpty()); |
| } |
| |
| private void addParentSession(PackageInstallerSession session) { |
| if (!mSessionMap.containsKey(session)) { |
| mSessionMap.put(session, new TreeSet<>(mSessionCreationComparator)); |
| } |
| } |
| |
| private void addChildSession(PackageInstallerSession session, |
| PackageInstallerSession parentSession) { |
| addParentSession(parentSession); |
| mSessionMap.get(parentSession).add(session); |
| } |
| |
| void addSession(PackageInstallerSession session, |
| PackageInstallerSession parentSession) { |
| if (session.hasParentSessionId()) { |
| addChildSession(session, parentSession); |
| } else { |
| addParentSession(session); |
| } |
| } |
| |
| void dump(String tag, IndentingPrintWriter pw) { |
| pw.println(tag + " install sessions:"); |
| pw.increaseIndent(); |
| |
| for (Map.Entry<PackageInstallerSession, TreeSet<PackageInstallerSession>> entry |
| : mSessionMap.entrySet()) { |
| PackageInstallerSession parentSession = entry.getKey(); |
| if (parentSession != null) { |
| pw.print(tag + " "); |
| parentSession.dump(pw); |
| pw.println(); |
| pw.increaseIndent(); |
| } |
| |
| for (PackageInstallerSession childSession : entry.getValue()) { |
| pw.print(tag + " Child "); |
| childSession.dump(pw); |
| pw.println(); |
| } |
| |
| pw.decreaseIndent(); |
| } |
| |
| pw.println(); |
| pw.decreaseIndent(); |
| } |
| } |
| |
| void dump(IndentingPrintWriter pw) { |
| synchronized (mSessions) { |
| ParentChildSessionMap activeSessionMap = new ParentChildSessionMap(); |
| ParentChildSessionMap orphanedChildSessionMap = new ParentChildSessionMap(); |
| ParentChildSessionMap finalizedSessionMap = new ParentChildSessionMap(); |
| |
| int N = mSessions.size(); |
| for (int i = 0; i < N; i++) { |
| final PackageInstallerSession session = mSessions.valueAt(i); |
| |
| final PackageInstallerSession rootSession = session.hasParentSessionId() |
| ? getSession(session.getParentSessionId()) |
| : session; |
| // Do not print orphaned child sessions as active install sessions |
| if (rootSession == null) { |
| orphanedChildSessionMap.addSession(session, rootSession); |
| continue; |
| } |
| |
| // Do not print finalized staged session as active install sessions |
| if (rootSession.isStagedAndInTerminalState()) { |
| finalizedSessionMap.addSession(session, rootSession); |
| continue; |
| } |
| |
| activeSessionMap.addSession(session, rootSession); |
| } |
| |
| activeSessionMap.dump("Active", pw); |
| |
| if (orphanedChildSessionMap.containsSession()) { |
| // Presence of orphaned sessions indicate leak in cleanup for multi-package and |
| // should be cleaned up. |
| orphanedChildSessionMap.dump("Orphaned", pw); |
| } |
| |
| finalizedSessionMap.dump("Finalized", pw); |
| |
| pw.println("Historical install sessions:"); |
| pw.increaseIndent(); |
| N = mHistoricalSessions.size(); |
| for (int i = 0; i < N; i++) { |
| pw.print(mHistoricalSessions.get(i)); |
| pw.println(); |
| } |
| pw.println(); |
| pw.decreaseIndent(); |
| |
| pw.println("Legacy install sessions:"); |
| pw.increaseIndent(); |
| pw.println(mLegacySessions.toString()); |
| pw.println(); |
| pw.decreaseIndent(); |
| } |
| mSilentUpdatePolicy.dump(pw); |
| } |
| |
| class InternalCallback { |
| public void onSessionBadgingChanged(PackageInstallerSession session) { |
| mCallbacks.notifySessionBadgingChanged(session.sessionId, session.userId); |
| mSettingsWriteRequest.schedule(); |
| } |
| |
| public void onSessionActiveChanged(PackageInstallerSession session, boolean active) { |
| mCallbacks.notifySessionActiveChanged(session.sessionId, session.userId, |
| active); |
| } |
| |
| public void onSessionProgressChanged(PackageInstallerSession session, float progress) { |
| mCallbacks.notifySessionProgressChanged(session.sessionId, session.userId, |
| progress); |
| } |
| |
| public void onSessionChanged(PackageInstallerSession session) { |
| session.markUpdated(); |
| mSettingsWriteRequest.schedule(); |
| // TODO(b/210359798): Remove the session.isStaged() check. Some apps assume this |
| // broadcast is sent by only staged sessions and call isStagedSessionApplied() without |
| // checking if it is a staged session or not and cause exception. |
| if (mOkToSendBroadcasts && !session.isDestroyed() && session.isStaged()) { |
| // we don't scrub the data here as this is sent only to the installer several |
| // privileged system packages |
| sendSessionUpdatedBroadcast( |
| session.generateInfoForCaller(false/*icon*/, Process.SYSTEM_UID), |
| session.userId); |
| } |
| } |
| |
| public void onSessionFinished(final PackageInstallerSession session, boolean success) { |
| mCallbacks.notifySessionFinished(session.sessionId, session.userId, success); |
| |
| mInstallHandler.post(new Runnable() { |
| @Override |
| public void run() { |
| if (session.isStaged() && !success) { |
| mStagingManager.abortSession(session.mStagedSession); |
| } |
| synchronized (mSessions) { |
| // Child sessions will be removed along with its parent as a whole |
| if (!session.hasParentSessionId()) { |
| // Retain policy: |
| // 1. Don't keep non-staged sessions |
| // 2. Don't keep explicitly abandoned sessions |
| // 3. Don't keep sessions that fail validation (isCommitted() is false) |
| boolean shouldRemove = !session.isStaged() || session.isDestroyed() |
| || !session.isCommitted(); |
| if (shouldRemove) { |
| removeActiveSession(session); |
| } |
| } |
| |
| final File appIconFile = buildAppIconFile(session.sessionId); |
| if (appIconFile.exists()) { |
| appIconFile.delete(); |
| } |
| |
| mSettingsWriteRequest.runNow(); |
| } |
| } |
| }); |
| } |
| |
| public void onSessionPrepared(PackageInstallerSession session) { |
| // We prepared the destination to write into; we want to persist |
| // this, but it's not critical enough to block for. |
| mSettingsWriteRequest.schedule(); |
| } |
| |
| public void onSessionSealedBlocking(PackageInstallerSession session) { |
| // It's very important that we block until we've recorded the |
| // session as being sealed, since we never want to allow mutation |
| // after sealing. |
| mSettingsWriteRequest.runNow(); |
| } |
| } |
| |
| /** |
| * Send a {@code PackageInstaller.ACTION_SESSION_UPDATED} broadcast intent, containing |
| * the {@code sessionInfo} in the extra field {@code PackageInstaller.EXTRA_SESSION}. |
| */ |
| private void sendSessionUpdatedBroadcast(PackageInstaller.SessionInfo sessionInfo, |
| int userId) { |
| if (TextUtils.isEmpty(sessionInfo.installerPackageName)) { |
| return; |
| } |
| Intent sessionUpdatedIntent = new Intent(PackageInstaller.ACTION_SESSION_UPDATED) |
| .putExtra(PackageInstaller.EXTRA_SESSION, sessionInfo) |
| .setPackage(sessionInfo.installerPackageName); |
| mContext.sendBroadcastAsUser(sessionUpdatedIntent, UserHandle.of(userId)); |
| } |
| } |
