PackageManagerService.java revision 703d1c43a25fe6e80c5fea46cc0ff14f0e1fbc00 
1/*
2 * Copyright (C) 2006 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17package com.android.server.pm;
18
19import static android.Manifest.permission.GRANT_REVOKE_PERMISSIONS;
20import static android.Manifest.permission.READ_EXTERNAL_STORAGE;
21import static android.content.pm.PackageManager.COMPONENT_ENABLED_STATE_DEFAULT;
22import static android.content.pm.PackageManager.COMPONENT_ENABLED_STATE_DISABLED;
23import static android.content.pm.PackageManager.COMPONENT_ENABLED_STATE_DISABLED_UNTIL_USED;
24import static android.content.pm.PackageManager.COMPONENT_ENABLED_STATE_DISABLED_USER;
25import static android.content.pm.PackageManager.COMPONENT_ENABLED_STATE_ENABLED;
26import static android.content.pm.PackageManager.INSTALL_EXTERNAL;
27import static android.content.pm.PackageManager.INSTALL_FAILED_ALREADY_EXISTS;
28import static android.content.pm.PackageManager.INSTALL_FAILED_CONFLICTING_PROVIDER;
29import static android.content.pm.PackageManager.INSTALL_FAILED_DEXOPT;
30import static android.content.pm.PackageManager.INSTALL_FAILED_DUPLICATE_PACKAGE;
31import static android.content.pm.PackageManager.INSTALL_FAILED_DUPLICATE_PERMISSION;
32import static android.content.pm.PackageManager.INSTALL_FAILED_INSUFFICIENT_STORAGE;
33import static android.content.pm.PackageManager.INSTALL_FAILED_INTERNAL_ERROR;
34import static android.content.pm.PackageManager.INSTALL_FAILED_INVALID_APK;
35import static android.content.pm.PackageManager.INSTALL_FAILED_INVALID_INSTALL_LOCATION;
36import static android.content.pm.PackageManager.INSTALL_FAILED_MISSING_SHARED_LIBRARY;
37import static android.content.pm.PackageManager.INSTALL_FAILED_PACKAGE_CHANGED;
38import static android.content.pm.PackageManager.INSTALL_FAILED_REPLACE_COULDNT_DELETE;
39import static android.content.pm.PackageManager.INSTALL_FAILED_SHARED_USER_INCOMPATIBLE;
40import static android.content.pm.PackageManager.INSTALL_FAILED_TEST_ONLY;
41import static android.content.pm.PackageManager.INSTALL_FAILED_UID_CHANGED;
42import static android.content.pm.PackageManager.INSTALL_FAILED_UPDATE_INCOMPATIBLE;
43import static android.content.pm.PackageManager.INSTALL_FAILED_USER_RESTRICTED;
44import static android.content.pm.PackageManager.INSTALL_FAILED_VERSION_DOWNGRADE;
45import static android.content.pm.PackageManager.INSTALL_FORWARD_LOCK;
46import static android.content.pm.PackageManager.INSTALL_PARSE_FAILED_INCONSISTENT_CERTIFICATES;
47import static android.content.pm.PackageParser.isApkFile;
48import static android.os.Process.PACKAGE_INFO_GID;
49import static android.os.Process.SYSTEM_UID;
50import static android.system.OsConstants.O_CREAT;
51import static android.system.OsConstants.O_RDWR;
52import static com.android.internal.app.IntentForwarderActivity.FORWARD_INTENT_TO_MANAGED_PROFILE;
53import static com.android.internal.app.IntentForwarderActivity.FORWARD_INTENT_TO_USER_OWNER;
54import static com.android.internal.content.NativeLibraryHelper.LIB64_DIR_NAME;
55import static com.android.internal.content.NativeLibraryHelper.LIB_DIR_NAME;
56import static com.android.internal.util.ArrayUtils.appendInt;
57import static com.android.internal.util.ArrayUtils.removeInt;
58
59import android.util.ArrayMap;
60
61import com.android.internal.R;
62import com.android.internal.app.IMediaContainerService;
63import com.android.internal.app.ResolverActivity;
64import com.android.internal.content.NativeLibraryHelper;
65import com.android.internal.content.PackageHelper;
66import com.android.internal.os.IParcelFileDescriptorFactory;
67import com.android.internal.util.ArrayUtils;
68import com.android.internal.util.FastPrintWriter;
69import com.android.internal.util.FastXmlSerializer;
70import com.android.internal.util.IndentingPrintWriter;
71import com.android.server.EventLogTags;
72import com.android.server.IntentResolver;
73import com.android.server.LocalServices;
74import com.android.server.ServiceThread;
75import com.android.server.SystemConfig;
76import com.android.server.Watchdog;
77import com.android.server.pm.Settings.DatabaseVersion;
78import com.android.server.storage.DeviceStorageMonitorInternal;
79
80import org.xmlpull.v1.XmlSerializer;
81
82import android.app.ActivityManager;
83import android.app.ActivityManagerNative;
84import android.app.AppGlobals;
85import android.app.IActivityManager;
86import android.app.admin.IDevicePolicyManager;
87import android.app.backup.IBackupManager;
88import android.app.usage.UsageStats;
89import android.app.usage.UsageStatsManager;
90import android.content.BroadcastReceiver;
91import android.content.ComponentName;
92import android.content.Context;
93import android.content.IIntentReceiver;
94import android.content.Intent;
95import android.content.IntentFilter;
96import android.content.IntentSender;
97import android.content.IntentSender.SendIntentException;
98import android.content.ServiceConnection;
99import android.content.pm.ActivityInfo;
100import android.content.pm.ApplicationInfo;
101import android.content.pm.FeatureInfo;
102import android.content.pm.IPackageDataObserver;
103import android.content.pm.IPackageDeleteObserver;
104import android.content.pm.IPackageDeleteObserver2;
105import android.content.pm.IPackageInstallObserver2;
106import android.content.pm.IPackageInstaller;
107import android.content.pm.IPackageManager;
108import android.content.pm.IPackageMoveObserver;
109import android.content.pm.IPackageStatsObserver;
110import android.content.pm.InstrumentationInfo;
111import android.content.pm.KeySet;
112import android.content.pm.ManifestDigest;
113import android.content.pm.PackageCleanItem;
114import android.content.pm.PackageInfo;
115import android.content.pm.PackageInfoLite;
116import android.content.pm.PackageInstaller;
117import android.content.pm.PackageManager;
118import android.content.pm.PackageManager.LegacyPackageDeleteObserver;
119import android.content.pm.PackageParser.ActivityIntentInfo;
120import android.content.pm.PackageParser.PackageLite;
121import android.content.pm.PackageParser.PackageParserException;
122import android.content.pm.PackageParser;
123import android.content.pm.PackageStats;
124import android.content.pm.PackageUserState;
125import android.content.pm.ParceledListSlice;
126import android.content.pm.PermissionGroupInfo;
127import android.content.pm.PermissionInfo;
128import android.content.pm.ProviderInfo;
129import android.content.pm.ResolveInfo;
130import android.content.pm.ServiceInfo;
131import android.content.pm.Signature;
132import android.content.pm.UserInfo;
133import android.content.pm.VerificationParams;
134import android.content.pm.VerifierDeviceIdentity;
135import android.content.pm.VerifierInfo;
136import android.content.res.Resources;
137import android.hardware.display.DisplayManager;
138import android.net.Uri;
139import android.os.Binder;
140import android.os.Build;
141import android.os.Bundle;
142import android.os.Environment;
143import android.os.Environment.UserEnvironment;
144import android.os.storage.IMountService;
145import android.os.storage.StorageManager;
146import android.os.Debug;
147import android.os.FileUtils;
148import android.os.Handler;
149import android.os.IBinder;
150import android.os.Looper;
151import android.os.Message;
152import android.os.Parcel;
153import android.os.ParcelFileDescriptor;
154import android.os.Process;
155import android.os.RemoteException;
156import android.os.SELinux;
157import android.os.ServiceManager;
158import android.os.SystemClock;
159import android.os.SystemProperties;
160import android.os.UserHandle;
161import android.os.UserManager;
162import android.security.KeyStore;
163import android.security.SystemKeyStore;
164import android.system.ErrnoException;
165import android.system.Os;
166import android.system.StructStat;
167import android.text.TextUtils;
168import android.text.format.DateUtils;
169import android.util.ArraySet;
170import android.util.AtomicFile;
171import android.util.DisplayMetrics;
172import android.util.EventLog;
173import android.util.ExceptionUtils;
174import android.util.Log;
175import android.util.LogPrinter;
176import android.util.PrintStreamPrinter;
177import android.util.Slog;
178import android.util.SparseArray;
179import android.util.SparseBooleanArray;
180import android.view.Display;
181
182import java.io.BufferedInputStream;
183import java.io.BufferedOutputStream;
184import java.io.BufferedReader;
185import java.io.File;
186import java.io.FileDescriptor;
187import java.io.FileInputStream;
188import java.io.FileNotFoundException;
189import java.io.FileOutputStream;
190import java.io.FileReader;
191import java.io.FilenameFilter;
192import java.io.IOException;
193import java.io.InputStream;
194import java.io.PrintWriter;
195import java.nio.charset.StandardCharsets;
196import java.security.NoSuchAlgorithmException;
197import java.security.PublicKey;
198import java.security.cert.CertificateEncodingException;
199import java.security.cert.CertificateException;
200import java.text.SimpleDateFormat;
201import java.util.ArrayList;
202import java.util.Arrays;
203import java.util.Collection;
204import java.util.Collections;
205import java.util.Comparator;
206import java.util.Date;
207import java.util.Iterator;
208import java.util.List;
209import java.util.Map;
210import java.util.Objects;
211import java.util.Set;
212import java.util.concurrent.atomic.AtomicBoolean;
213import java.util.concurrent.atomic.AtomicLong;
214
215import dalvik.system.DexFile;
216import dalvik.system.StaleDexCacheError;
217import dalvik.system.VMRuntime;
218
219import libcore.io.IoUtils;
220import libcore.util.EmptyArray;
221
222/**
223 * Keep track of all those .apks everywhere.
224 *
225 * This is very central to the platform's security; please run the unit
226 * tests whenever making modifications here:
227 *
228mmm frameworks/base/tests/AndroidTests
229adb install -r -f out/target/product/passion/data/app/AndroidTests.apk
230adb shell am instrument -w -e class com.android.unit_tests.PackageManagerTests com.android.unit_tests/android.test.InstrumentationTestRunner
231 *
232 * {@hide}
233 */
234public class PackageManagerService extends IPackageManager.Stub {
235    static final String TAG = "PackageManager";
236    static final boolean DEBUG_SETTINGS = false;
237    static final boolean DEBUG_PREFERRED = false;
238    static final boolean DEBUG_UPGRADE = false;
239    private static final boolean DEBUG_INSTALL = false;
240    private static final boolean DEBUG_REMOVE = false;
241    private static final boolean DEBUG_BROADCASTS = false;
242    private static final boolean DEBUG_SHOW_INFO = false;
243    private static final boolean DEBUG_PACKAGE_INFO = false;
244    private static final boolean DEBUG_INTENT_MATCHING = false;
245    private static final boolean DEBUG_PACKAGE_SCANNING = false;
246    private static final boolean DEBUG_VERIFY = false;
247    private static final boolean DEBUG_DEXOPT = false;
248    private static final boolean DEBUG_ABI_SELECTION = false;
249
250    private static final int RADIO_UID = Process.PHONE_UID;
251    private static final int LOG_UID = Process.LOG_UID;
252    private static final int NFC_UID = Process.NFC_UID;
253    private static final int BLUETOOTH_UID = Process.BLUETOOTH_UID;
254    private static final int SHELL_UID = Process.SHELL_UID;
255
256    // Cap the size of permission trees that 3rd party apps can define
257    private static final int MAX_PERMISSION_TREE_FOOTPRINT = 32768;     // characters of text
258
259    // Suffix used during package installation when copying/moving
260    // package apks to install directory.
261    private static final String INSTALL_PACKAGE_SUFFIX = "-";
262
263    static final int SCAN_NO_DEX = 1<<1;
264    static final int SCAN_FORCE_DEX = 1<<2;
265    static final int SCAN_UPDATE_SIGNATURE = 1<<3;
266    static final int SCAN_NEW_INSTALL = 1<<4;
267    static final int SCAN_NO_PATHS = 1<<5;
268    static final int SCAN_UPDATE_TIME = 1<<6;
269    static final int SCAN_DEFER_DEX = 1<<7;
270    static final int SCAN_BOOTING = 1<<8;
271    static final int SCAN_TRUSTED_OVERLAY = 1<<9;
272    static final int SCAN_DELETE_DATA_ON_FAILURES = 1<<10;
273    static final int SCAN_REPLACING = 1<<11;
274
275    static final int REMOVE_CHATTY = 1<<16;
276
277    /**
278     * Timeout (in milliseconds) after which the watchdog should declare that
279     * our handler thread is wedged.  The usual default for such things is one
280     * minute but we sometimes do very lengthy I/O operations on this thread,
281     * such as installing multi-gigabyte applications, so ours needs to be longer.
282     */
283    private static final long WATCHDOG_TIMEOUT = 1000*60*10;     // ten minutes
284
285    /**
286     * Wall-clock timeout (in milliseconds) after which we *require* that an fstrim
287     * be run on this device.  We use the value in the Settings.Global.MANDATORY_FSTRIM_INTERVAL
288     * settings entry if available, otherwise we use the hardcoded default.  If it's been
289     * more than this long since the last fstrim, we force one during the boot sequence.
290     *
291     * This backstops other fstrim scheduling:  if the device is alive at midnight+idle,
292     * one gets run at the next available charging+idle time.  This final mandatory
293     * no-fstrim check kicks in only of the other scheduling criteria is never met.
294     */
295    private static final long DEFAULT_MANDATORY_FSTRIM_INTERVAL = 3 * DateUtils.DAY_IN_MILLIS;
296
297    /**
298     * Whether verification is enabled by default.
299     */
300    private static final boolean DEFAULT_VERIFY_ENABLE = true;
301
302    /**
303     * The default maximum time to wait for the verification agent to return in
304     * milliseconds.
305     */
306    private static final long DEFAULT_VERIFICATION_TIMEOUT = 10 * 1000;
307
308    /**
309     * The default response for package verification timeout.
310     *
311     * This can be either PackageManager.VERIFICATION_ALLOW or
312     * PackageManager.VERIFICATION_REJECT.
313     */
314    private static final int DEFAULT_VERIFICATION_RESPONSE = PackageManager.VERIFICATION_ALLOW;
315
316    static final String DEFAULT_CONTAINER_PACKAGE = "com.android.defcontainer";
317
318    static final ComponentName DEFAULT_CONTAINER_COMPONENT = new ComponentName(
319            DEFAULT_CONTAINER_PACKAGE,
320            "com.android.defcontainer.DefaultContainerService");
321
322    private static final String PACKAGE_MIME_TYPE = "application/vnd.android.package-archive";
323
324    private static final String VENDOR_OVERLAY_DIR = "/vendor/overlay";
325
326    private static String sPreferredInstructionSet;
327
328    final ServiceThread mHandlerThread;
329
330    private static final String IDMAP_PREFIX = "/data/resource-cache/";
331    private static final String IDMAP_SUFFIX = "@idmap";
332
333    final PackageHandler mHandler;
334
335    /**
336     * Messages for {@link #mHandler} that need to wait for system ready before
337     * being dispatched.
338     */
339    private ArrayList<Message> mPostSystemReadyMessages;
340
341    final int mSdkVersion = Build.VERSION.SDK_INT;
342
343    final Context mContext;
344    final boolean mFactoryTest;
345    final boolean mOnlyCore;
346    final boolean mLazyDexOpt;
347    final long mDexOptLRUThresholdInMills;
348    final DisplayMetrics mMetrics;
349    final int mDefParseFlags;
350    final String[] mSeparateProcesses;
351    final boolean mIsUpgrade;
352
353    // This is where all application persistent data goes.
354    final File mAppDataDir;
355
356    // This is where all application persistent data goes for secondary users.
357    final File mUserAppDataDir;
358
359    /** The location for ASEC container files on internal storage. */
360    final String mAsecInternalPath;
361
362    // Used for privilege escalation. MUST NOT BE CALLED WITH mPackages
363    // LOCK HELD.  Can be called with mInstallLock held.
364    final Installer mInstaller;
365
366    /** Directory where installed third-party apps stored */
367    final File mAppInstallDir;
368
369    /**
370     * Directory to which applications installed internally have their
371     * 32 bit native libraries copied.
372     */
373    private File mAppLib32InstallDir;
374
375    // Directory containing the private parts (e.g. code and non-resource assets) of forward-locked
376    // apps.
377    final File mDrmAppPrivateInstallDir;
378
379    // ----------------------------------------------------------------
380
381    // Lock for state used when installing and doing other long running
382    // operations.  Methods that must be called with this lock held have
383    // the suffix "LI".
384    final Object mInstallLock = new Object();
385
386    // ----------------------------------------------------------------
387
388    // Keys are String (package name), values are Package.  This also serves
389    // as the lock for the global state.  Methods that must be called with
390    // this lock held have the prefix "LP".
391    final ArrayMap<String, PackageParser.Package> mPackages =
392            new ArrayMap<String, PackageParser.Package>();
393
394    // Tracks available target package names -> overlay package paths.
395    final ArrayMap<String, ArrayMap<String, PackageParser.Package>> mOverlays =
396        new ArrayMap<String, ArrayMap<String, PackageParser.Package>>();
397
398    final Settings mSettings;
399    boolean mRestoredSettings;
400
401    // System configuration read by SystemConfig.
402    final int[] mGlobalGids;
403    final SparseArray<ArraySet<String>> mSystemPermissions;
404    final ArrayMap<String, FeatureInfo> mAvailableFeatures;
405
406    // If mac_permissions.xml was found for seinfo labeling.
407    boolean mFoundPolicyFile;
408
409    // If a recursive restorecon of /data/data/<pkg> is needed.
410    private boolean mShouldRestoreconData = SELinuxMMAC.shouldRestorecon();
411
412    public static final class SharedLibraryEntry {
413        public final String path;
414        public final String apk;
415
416        SharedLibraryEntry(String _path, String _apk) {
417            path = _path;
418            apk = _apk;
419        }
420    }
421
422    // Currently known shared libraries.
423    final ArrayMap<String, SharedLibraryEntry> mSharedLibraries =
424            new ArrayMap<String, SharedLibraryEntry>();
425
426    // All available activities, for your resolving pleasure.
427    final ActivityIntentResolver mActivities =
428            new ActivityIntentResolver();
429
430    // All available receivers, for your resolving pleasure.
431    final ActivityIntentResolver mReceivers =
432            new ActivityIntentResolver();
433
434    // All available services, for your resolving pleasure.
435    final ServiceIntentResolver mServices = new ServiceIntentResolver();
436
437    // All available providers, for your resolving pleasure.
438    final ProviderIntentResolver mProviders = new ProviderIntentResolver();
439
440    // Mapping from provider base names (first directory in content URI codePath)
441    // to the provider information.
442    final ArrayMap<String, PackageParser.Provider> mProvidersByAuthority =
443            new ArrayMap<String, PackageParser.Provider>();
444
445    // Mapping from instrumentation class names to info about them.
446    final ArrayMap<ComponentName, PackageParser.Instrumentation> mInstrumentation =
447            new ArrayMap<ComponentName, PackageParser.Instrumentation>();
448
449    // Mapping from permission names to info about them.
450    final ArrayMap<String, PackageParser.PermissionGroup> mPermissionGroups =
451            new ArrayMap<String, PackageParser.PermissionGroup>();
452
453    // Packages whose data we have transfered into another package, thus
454    // should no longer exist.
455    final ArraySet<String> mTransferedPackages = new ArraySet<String>();
456
457    // Broadcast actions that are only available to the system.
458    final ArraySet<String> mProtectedBroadcasts = new ArraySet<String>();
459
460    /** List of packages waiting for verification. */
461    final SparseArray<PackageVerificationState> mPendingVerification
462            = new SparseArray<PackageVerificationState>();
463
464    /** Set of packages associated with each app op permission. */
465    final ArrayMap<String, ArraySet<String>> mAppOpPermissionPackages = new ArrayMap<>();
466
467    final PackageInstallerService mInstallerService;
468
469    ArraySet<PackageParser.Package> mDeferredDexOpt = null;
470
471    // Cache of users who need badging.
472    SparseBooleanArray mUserNeedsBadging = new SparseBooleanArray();
473
474    /** Token for keys in mPendingVerification. */
475    private int mPendingVerificationToken = 0;
476
477    volatile boolean mSystemReady;
478    volatile boolean mSafeMode;
479    volatile boolean mHasSystemUidErrors;
480
481    ApplicationInfo mAndroidApplication;
482    final ActivityInfo mResolveActivity = new ActivityInfo();
483    final ResolveInfo mResolveInfo = new ResolveInfo();
484    ComponentName mResolveComponentName;
485    PackageParser.Package mPlatformPackage;
486    ComponentName mCustomResolverComponentName;
487
488    boolean mResolverReplaced = false;
489
490    // Set of pending broadcasts for aggregating enable/disable of components.
491    static class PendingPackageBroadcasts {
492        // for each user id, a map of <package name -> components within that package>
493        final SparseArray<ArrayMap<String, ArrayList<String>>> mUidMap;
494
495        public PendingPackageBroadcasts() {
496            mUidMap = new SparseArray<ArrayMap<String, ArrayList<String>>>(2);
497        }
498
499        public ArrayList<String> get(int userId, String packageName) {
500            ArrayMap<String, ArrayList<String>> packages = getOrAllocate(userId);
501            return packages.get(packageName);
502        }
503
504        public void put(int userId, String packageName, ArrayList<String> components) {
505            ArrayMap<String, ArrayList<String>> packages = getOrAllocate(userId);
506            packages.put(packageName, components);
507        }
508
509        public void remove(int userId, String packageName) {
510            ArrayMap<String, ArrayList<String>> packages = mUidMap.get(userId);
511            if (packages != null) {
512                packages.remove(packageName);
513            }
514        }
515
516        public void remove(int userId) {
517            mUidMap.remove(userId);
518        }
519
520        public int userIdCount() {
521            return mUidMap.size();
522        }
523
524        public int userIdAt(int n) {
525            return mUidMap.keyAt(n);
526        }
527
528        public ArrayMap<String, ArrayList<String>> packagesForUserId(int userId) {
529            return mUidMap.get(userId);
530        }
531
532        public int size() {
533            // total number of pending broadcast entries across all userIds
534            int num = 0;
535            for (int i = 0; i< mUidMap.size(); i++) {
536                num += mUidMap.valueAt(i).size();
537            }
538            return num;
539        }
540
541        public void clear() {
542            mUidMap.clear();
543        }
544
545        private ArrayMap<String, ArrayList<String>> getOrAllocate(int userId) {
546            ArrayMap<String, ArrayList<String>> map = mUidMap.get(userId);
547            if (map == null) {
548                map = new ArrayMap<String, ArrayList<String>>();
549                mUidMap.put(userId, map);
550            }
551            return map;
552        }
553    }
554    final PendingPackageBroadcasts mPendingBroadcasts = new PendingPackageBroadcasts();
555
556    // Service Connection to remote media container service to copy
557    // package uri's from external media onto secure containers
558    // or internal storage.
559    private IMediaContainerService mContainerService = null;
560
561    static final int SEND_PENDING_BROADCAST = 1;
562    static final int MCS_BOUND = 3;
563    static final int END_COPY = 4;
564    static final int INIT_COPY = 5;
565    static final int MCS_UNBIND = 6;
566    static final int START_CLEANING_PACKAGE = 7;
567    static final int FIND_INSTALL_LOC = 8;
568    static final int POST_INSTALL = 9;
569    static final int MCS_RECONNECT = 10;
570    static final int MCS_GIVE_UP = 11;
571    static final int UPDATED_MEDIA_STATUS = 12;
572    static final int WRITE_SETTINGS = 13;
573    static final int WRITE_PACKAGE_RESTRICTIONS = 14;
574    static final int PACKAGE_VERIFIED = 15;
575    static final int CHECK_PENDING_VERIFICATION = 16;
576
577    static final int WRITE_SETTINGS_DELAY = 10*1000;  // 10 seconds
578
579    // Delay time in millisecs
580    static final int BROADCAST_DELAY = 10 * 1000;
581
582    static UserManagerService sUserManager;
583
584    // Stores a list of users whose package restrictions file needs to be updated
585    private ArraySet<Integer> mDirtyUsers = new ArraySet<Integer>();
586
587    final private DefaultContainerConnection mDefContainerConn =
588            new DefaultContainerConnection();
589    class DefaultContainerConnection implements ServiceConnection {
590        public void onServiceConnected(ComponentName name, IBinder service) {
591            if (DEBUG_SD_INSTALL) Log.i(TAG, "onServiceConnected");
592            IMediaContainerService imcs =
593                IMediaContainerService.Stub.asInterface(service);
594            mHandler.sendMessage(mHandler.obtainMessage(MCS_BOUND, imcs));
595        }
596
597        public void onServiceDisconnected(ComponentName name) {
598            if (DEBUG_SD_INSTALL) Log.i(TAG, "onServiceDisconnected");
599        }
600    };
601
602    // Recordkeeping of restore-after-install operations that are currently in flight
603    // between the Package Manager and the Backup Manager
604    class PostInstallData {
605        public InstallArgs args;
606        public PackageInstalledInfo res;
607
608        PostInstallData(InstallArgs _a, PackageInstalledInfo _r) {
609            args = _a;
610            res = _r;
611        }
612    };
613    final SparseArray<PostInstallData> mRunningInstalls = new SparseArray<PostInstallData>();
614    int mNextInstallToken = 1;  // nonzero; will be wrapped back to 1 when ++ overflows
615
616    private final String mRequiredVerifierPackage;
617
618    private final PackageUsage mPackageUsage = new PackageUsage();
619
620    private class PackageUsage {
621        private static final int WRITE_INTERVAL
622            = (DEBUG_DEXOPT) ? 0 : 30*60*1000; // 30m in ms
623
624        private final Object mFileLock = new Object();
625        private final AtomicLong mLastWritten = new AtomicLong(0);
626        private final AtomicBoolean mBackgroundWriteRunning = new AtomicBoolean(false);
627
628        private boolean mIsHistoricalPackageUsageAvailable = true;
629
630        boolean isHistoricalPackageUsageAvailable() {
631            return mIsHistoricalPackageUsageAvailable;
632        }
633
634        void write(boolean force) {
635            if (force) {
636                writeInternal();
637                return;
638            }
639            if (SystemClock.elapsedRealtime() - mLastWritten.get() < WRITE_INTERVAL
640                && !DEBUG_DEXOPT) {
641                return;
642            }
643            if (mBackgroundWriteRunning.compareAndSet(false, true)) {
644                new Thread("PackageUsage_DiskWriter") {
645                    @Override
646                    public void run() {
647                        try {
648                            writeInternal();
649                        } finally {
650                            mBackgroundWriteRunning.set(false);
651                        }
652                    }
653                }.start();
654            }
655        }
656
657        private void writeInternal() {
658            synchronized (mPackages) {
659                synchronized (mFileLock) {
660                    AtomicFile file = getFile();
661                    FileOutputStream f = null;
662                    try {
663                        f = file.startWrite();
664                        BufferedOutputStream out = new BufferedOutputStream(f);
665                        FileUtils.setPermissions(file.getBaseFile().getPath(), 0640, SYSTEM_UID, PACKAGE_INFO_GID);
666                        StringBuilder sb = new StringBuilder();
667                        for (PackageParser.Package pkg : mPackages.values()) {
668                            if (pkg.mLastPackageUsageTimeInMills == 0) {
669                                continue;
670                            }
671                            sb.setLength(0);
672                            sb.append(pkg.packageName);
673                            sb.append(' ');
674                            sb.append((long)pkg.mLastPackageUsageTimeInMills);
675                            sb.append('\n');
676                            out.write(sb.toString().getBytes(StandardCharsets.US_ASCII));
677                        }
678                        out.flush();
679                        file.finishWrite(f);
680                    } catch (IOException e) {
681                        if (f != null) {
682                            file.failWrite(f);
683                        }
684                        Log.e(TAG, "Failed to write package usage times", e);
685                    }
686                }
687            }
688            mLastWritten.set(SystemClock.elapsedRealtime());
689        }
690
691        void readLP() {
692            synchronized (mFileLock) {
693                AtomicFile file = getFile();
694                BufferedInputStream in = null;
695                try {
696                    in = new BufferedInputStream(file.openRead());
697                    StringBuffer sb = new StringBuffer();
698                    while (true) {
699                        String packageName = readToken(in, sb, ' ');
700                        if (packageName == null) {
701                            break;
702                        }
703                        String timeInMillisString = readToken(in, sb, '\n');
704                        if (timeInMillisString == null) {
705                            throw new IOException("Failed to find last usage time for package "
706                                                  + packageName);
707                        }
708                        PackageParser.Package pkg = mPackages.get(packageName);
709                        if (pkg == null) {
710                            continue;
711                        }
712                        long timeInMillis;
713                        try {
714                            timeInMillis = Long.parseLong(timeInMillisString.toString());
715                        } catch (NumberFormatException e) {
716                            throw new IOException("Failed to parse " + timeInMillisString
717                                                  + " as a long.", e);
718                        }
719                        pkg.mLastPackageUsageTimeInMills = timeInMillis;
720                    }
721                } catch (FileNotFoundException expected) {
722                    mIsHistoricalPackageUsageAvailable = false;
723                } catch (IOException e) {
724                    Log.w(TAG, "Failed to read package usage times", e);
725                } finally {
726                    IoUtils.closeQuietly(in);
727                }
728            }
729            mLastWritten.set(SystemClock.elapsedRealtime());
730        }
731
732        private String readToken(InputStream in, StringBuffer sb, char endOfToken)
733                throws IOException {
734            sb.setLength(0);
735            while (true) {
736                int ch = in.read();
737                if (ch == -1) {
738                    if (sb.length() == 0) {
739                        return null;
740                    }
741                    throw new IOException("Unexpected EOF");
742                }
743                if (ch == endOfToken) {
744                    return sb.toString();
745                }
746                sb.append((char)ch);
747            }
748        }
749
750        private AtomicFile getFile() {
751            File dataDir = Environment.getDataDirectory();
752            File systemDir = new File(dataDir, "system");
753            File fname = new File(systemDir, "package-usage.list");
754            return new AtomicFile(fname);
755        }
756    }
757
758    class PackageHandler extends Handler {
759        private boolean mBound = false;
760        final ArrayList<HandlerParams> mPendingInstalls =
761            new ArrayList<HandlerParams>();
762
763        private boolean connectToService() {
764            if (DEBUG_SD_INSTALL) Log.i(TAG, "Trying to bind to" +
765                    " DefaultContainerService");
766            Intent service = new Intent().setComponent(DEFAULT_CONTAINER_COMPONENT);
767            Process.setThreadPriority(Process.THREAD_PRIORITY_DEFAULT);
768            if (mContext.bindServiceAsUser(service, mDefContainerConn,
769                    Context.BIND_AUTO_CREATE, UserHandle.OWNER)) {
770                Process.setThreadPriority(Process.THREAD_PRIORITY_BACKGROUND);
771                mBound = true;
772                return true;
773            }
774            Process.setThreadPriority(Process.THREAD_PRIORITY_BACKGROUND);
775            return false;
776        }
777
778        private void disconnectService() {
779            mContainerService = null;
780            mBound = false;
781            Process.setThreadPriority(Process.THREAD_PRIORITY_DEFAULT);
782            mContext.unbindService(mDefContainerConn);
783            Process.setThreadPriority(Process.THREAD_PRIORITY_BACKGROUND);
784        }
785
786        PackageHandler(Looper looper) {
787            super(looper);
788        }
789
790        public void handleMessage(Message msg) {
791            try {
792                doHandleMessage(msg);
793            } finally {
794                Process.setThreadPriority(Process.THREAD_PRIORITY_BACKGROUND);
795            }
796        }
797
798        void doHandleMessage(Message msg) {
799            switch (msg.what) {
800                case INIT_COPY: {
801                    HandlerParams params = (HandlerParams) msg.obj;
802                    int idx = mPendingInstalls.size();
803                    if (DEBUG_INSTALL) Slog.i(TAG, "init_copy idx=" + idx + ": " + params);
804                    // If a bind was already initiated we dont really
805                    // need to do anything. The pending install
806                    // will be processed later on.
807                    if (!mBound) {
808                        // If this is the only one pending we might
809                        // have to bind to the service again.
810                        if (!connectToService()) {
811                            Slog.e(TAG, "Failed to bind to media container service");
812                            params.serviceError();
813                            return;
814                        } else {
815                            // Once we bind to the service, the first
816                            // pending request will be processed.
817                            mPendingInstalls.add(idx, params);
818                        }
819                    } else {
820                        mPendingInstalls.add(idx, params);
821                        // Already bound to the service. Just make
822                        // sure we trigger off processing the first request.
823                        if (idx == 0) {
824                            mHandler.sendEmptyMessage(MCS_BOUND);
825                        }
826                    }
827                    break;
828                }
829                case MCS_BOUND: {
830                    if (DEBUG_INSTALL) Slog.i(TAG, "mcs_bound");
831                    if (msg.obj != null) {
832                        mContainerService = (IMediaContainerService) msg.obj;
833                    }
834                    if (mContainerService == null) {
835                        // Something seriously wrong. Bail out
836                        Slog.e(TAG, "Cannot bind to media container service");
837                        for (HandlerParams params : mPendingInstalls) {
838                            // Indicate service bind error
839                            params.serviceError();
840                        }
841                        mPendingInstalls.clear();
842                    } else if (mPendingInstalls.size() > 0) {
843                        HandlerParams params = mPendingInstalls.get(0);
844                        if (params != null) {
845                            if (params.startCopy()) {
846                                // We are done...  look for more work or to
847                                // go idle.
848                                if (DEBUG_SD_INSTALL) Log.i(TAG,
849                                        "Checking for more work or unbind...");
850                                // Delete pending install
851                                if (mPendingInstalls.size() > 0) {
852                                    mPendingInstalls.remove(0);
853                                }
854                                if (mPendingInstalls.size() == 0) {
855                                    if (mBound) {
856                                        if (DEBUG_SD_INSTALL) Log.i(TAG,
857                                                "Posting delayed MCS_UNBIND");
858                                        removeMessages(MCS_UNBIND);
859                                        Message ubmsg = obtainMessage(MCS_UNBIND);
860                                        // Unbind after a little delay, to avoid
861                                        // continual thrashing.
862                                        sendMessageDelayed(ubmsg, 10000);
863                                    }
864                                } else {
865                                    // There are more pending requests in queue.
866                                    // Just post MCS_BOUND message to trigger processing
867                                    // of next pending install.
868                                    if (DEBUG_SD_INSTALL) Log.i(TAG,
869                                            "Posting MCS_BOUND for next work");
870                                    mHandler.sendEmptyMessage(MCS_BOUND);
871                                }
872                            }
873                        }
874                    } else {
875                        // Should never happen ideally.
876                        Slog.w(TAG, "Empty queue");
877                    }
878                    break;
879                }
880                case MCS_RECONNECT: {
881                    if (DEBUG_INSTALL) Slog.i(TAG, "mcs_reconnect");
882                    if (mPendingInstalls.size() > 0) {
883                        if (mBound) {
884                            disconnectService();
885                        }
886                        if (!connectToService()) {
887                            Slog.e(TAG, "Failed to bind to media container service");
888                            for (HandlerParams params : mPendingInstalls) {
889                                // Indicate service bind error
890                                params.serviceError();
891                            }
892                            mPendingInstalls.clear();
893                        }
894                    }
895                    break;
896                }
897                case MCS_UNBIND: {
898                    // If there is no actual work left, then time to unbind.
899                    if (DEBUG_INSTALL) Slog.i(TAG, "mcs_unbind");
900
901                    if (mPendingInstalls.size() == 0 && mPendingVerification.size() == 0) {
902                        if (mBound) {
903                            if (DEBUG_INSTALL) Slog.i(TAG, "calling disconnectService()");
904
905                            disconnectService();
906                        }
907                    } else if (mPendingInstalls.size() > 0) {
908                        // There are more pending requests in queue.
909                        // Just post MCS_BOUND message to trigger processing
910                        // of next pending install.
911                        mHandler.sendEmptyMessage(MCS_BOUND);
912                    }
913
914                    break;
915                }
916                case MCS_GIVE_UP: {
917                    if (DEBUG_INSTALL) Slog.i(TAG, "mcs_giveup too many retries");
918                    mPendingInstalls.remove(0);
919                    break;
920                }
921                case SEND_PENDING_BROADCAST: {
922                    String packages[];
923                    ArrayList<String> components[];
924                    int size = 0;
925                    int uids[];
926                    Process.setThreadPriority(Process.THREAD_PRIORITY_DEFAULT);
927                    synchronized (mPackages) {
928                        if (mPendingBroadcasts == null) {
929                            return;
930                        }
931                        size = mPendingBroadcasts.size();
932                        if (size <= 0) {
933                            // Nothing to be done. Just return
934                            return;
935                        }
936                        packages = new String[size];
937                        components = new ArrayList[size];
938                        uids = new int[size];
939                        int i = 0;  // filling out the above arrays
940
941                        for (int n = 0; n < mPendingBroadcasts.userIdCount(); n++) {
942                            int packageUserId = mPendingBroadcasts.userIdAt(n);
943                            Iterator<Map.Entry<String, ArrayList<String>>> it
944                                    = mPendingBroadcasts.packagesForUserId(packageUserId)
945                                            .entrySet().iterator();
946                            while (it.hasNext() && i < size) {
947                                Map.Entry<String, ArrayList<String>> ent = it.next();
948                                packages[i] = ent.getKey();
949                                components[i] = ent.getValue();
950                                PackageSetting ps = mSettings.mPackages.get(ent.getKey());
951                                uids[i] = (ps != null)
952                                        ? UserHandle.getUid(packageUserId, ps.appId)
953                                        : -1;
954                                i++;
955                            }
956                        }
957                        size = i;
958                        mPendingBroadcasts.clear();
959                    }
960                    // Send broadcasts
961                    for (int i = 0; i < size; i++) {
962                        sendPackageChangedBroadcast(packages[i], true, components[i], uids[i]);
963                    }
964                    Process.setThreadPriority(Process.THREAD_PRIORITY_BACKGROUND);
965                    break;
966                }
967                case START_CLEANING_PACKAGE: {
968                    Process.setThreadPriority(Process.THREAD_PRIORITY_DEFAULT);
969                    final String packageName = (String)msg.obj;
970                    final int userId = msg.arg1;
971                    final boolean andCode = msg.arg2 != 0;
972                    synchronized (mPackages) {
973                        if (userId == UserHandle.USER_ALL) {
974                            int[] users = sUserManager.getUserIds();
975                            for (int user : users) {
976                                mSettings.addPackageToCleanLPw(
977                                        new PackageCleanItem(user, packageName, andCode));
978                            }
979                        } else {
980                            mSettings.addPackageToCleanLPw(
981                                    new PackageCleanItem(userId, packageName, andCode));
982                        }
983                    }
984                    Process.setThreadPriority(Process.THREAD_PRIORITY_BACKGROUND);
985                    startCleaningPackages();
986                } break;
987                case POST_INSTALL: {
988                    if (DEBUG_INSTALL) Log.v(TAG, "Handling post-install for " + msg.arg1);
989                    PostInstallData data = mRunningInstalls.get(msg.arg1);
990                    mRunningInstalls.delete(msg.arg1);
991                    boolean deleteOld = false;
992
993                    if (data != null) {
994                        InstallArgs args = data.args;
995                        PackageInstalledInfo res = data.res;
996
997                        if (res.returnCode == PackageManager.INSTALL_SUCCEEDED) {
998                            res.removedInfo.sendBroadcast(false, true, false);
999                            Bundle extras = new Bundle(1);
1000                            extras.putInt(Intent.EXTRA_UID, res.uid);
1001                            // Determine the set of users who are adding this
1002                            // package for the first time vs. those who are seeing
1003                            // an update.
1004                            int[] firstUsers;
1005                            int[] updateUsers = new int[0];
1006                            if (res.origUsers == null || res.origUsers.length == 0) {
1007                                firstUsers = res.newUsers;
1008                            } else {
1009                                firstUsers = new int[0];
1010                                for (int i=0; i<res.newUsers.length; i++) {
1011                                    int user = res.newUsers[i];
1012                                    boolean isNew = true;
1013                                    for (int j=0; j<res.origUsers.length; j++) {
1014                                        if (res.origUsers[j] == user) {
1015                                            isNew = false;
1016                                            break;
1017                                        }
1018                                    }
1019                                    if (isNew) {
1020                                        int[] newFirst = new int[firstUsers.length+1];
1021                                        System.arraycopy(firstUsers, 0, newFirst, 0,
1022                                                firstUsers.length);
1023                                        newFirst[firstUsers.length] = user;
1024                                        firstUsers = newFirst;
1025                                    } else {
1026                                        int[] newUpdate = new int[updateUsers.length+1];
1027                                        System.arraycopy(updateUsers, 0, newUpdate, 0,
1028                                                updateUsers.length);
1029                                        newUpdate[updateUsers.length] = user;
1030                                        updateUsers = newUpdate;
1031                                    }
1032                                }
1033                            }
1034                            sendPackageBroadcast(Intent.ACTION_PACKAGE_ADDED,
1035                                    res.pkg.applicationInfo.packageName,
1036                                    extras, null, null, firstUsers);
1037                            final boolean update = res.removedInfo.removedPackage != null;
1038                            if (update) {
1039                                extras.putBoolean(Intent.EXTRA_REPLACING, true);
1040                            }
1041                            sendPackageBroadcast(Intent.ACTION_PACKAGE_ADDED,
1042                                    res.pkg.applicationInfo.packageName,
1043                                    extras, null, null, updateUsers);
1044                            if (update) {
1045                                sendPackageBroadcast(Intent.ACTION_PACKAGE_REPLACED,
1046                                        res.pkg.applicationInfo.packageName,
1047                                        extras, null, null, updateUsers);
1048                                sendPackageBroadcast(Intent.ACTION_MY_PACKAGE_REPLACED,
1049                                        null, null,
1050                                        res.pkg.applicationInfo.packageName, null, updateUsers);
1051
1052                                // treat asec-hosted packages like removable media on upgrade
1053                                if (isForwardLocked(res.pkg) || isExternal(res.pkg)) {
1054                                    if (DEBUG_INSTALL) {
1055                                        Slog.i(TAG, "upgrading pkg " + res.pkg
1056                                                + " is ASEC-hosted -> AVAILABLE");
1057                                    }
1058                                    int[] uidArray = new int[] { res.pkg.applicationInfo.uid };
1059                                    ArrayList<String> pkgList = new ArrayList<String>(1);
1060                                    pkgList.add(res.pkg.applicationInfo.packageName);
1061                                    sendResourcesChangedBroadcast(true, true,
1062                                            pkgList,uidArray, null);
1063                                }
1064                            }
1065                            if (res.removedInfo.args != null) {
1066                                // Remove the replaced package's older resources safely now
1067                                deleteOld = true;
1068                            }
1069
1070                            // Log current value of "unknown sources" setting
1071                            EventLog.writeEvent(EventLogTags.UNKNOWN_SOURCES_ENABLED,
1072                                getUnknownSourcesSettings());
1073                        }
1074                        // Force a gc to clear up things
1075                        Runtime.getRuntime().gc();
1076                        // We delete after a gc for applications  on sdcard.
1077                        if (deleteOld) {
1078                            synchronized (mInstallLock) {
1079                                res.removedInfo.args.doPostDeleteLI(true);
1080                            }
1081                        }
1082                        if (args.observer != null) {
1083                            try {
1084                                Bundle extras = extrasForInstallResult(res);
1085                                args.observer.onPackageInstalled(res.name, res.returnCode,
1086                                        res.returnMsg, extras);
1087                            } catch (RemoteException e) {
1088                                Slog.i(TAG, "Observer no longer exists.");
1089                            }
1090                        }
1091                    } else {
1092                        Slog.e(TAG, "Bogus post-install token " + msg.arg1);
1093                    }
1094                } break;
1095                case UPDATED_MEDIA_STATUS: {
1096                    if (DEBUG_SD_INSTALL) Log.i(TAG, "Got message UPDATED_MEDIA_STATUS");
1097                    boolean reportStatus = msg.arg1 == 1;
1098                    boolean doGc = msg.arg2 == 1;
1099                    if (DEBUG_SD_INSTALL) Log.i(TAG, "reportStatus=" + reportStatus + ", doGc = " + doGc);
1100                    if (doGc) {
1101                        // Force a gc to clear up stale containers.
1102                        Runtime.getRuntime().gc();
1103                    }
1104                    if (msg.obj != null) {
1105                        @SuppressWarnings("unchecked")
1106                        Set<AsecInstallArgs> args = (Set<AsecInstallArgs>) msg.obj;
1107                        if (DEBUG_SD_INSTALL) Log.i(TAG, "Unloading all containers");
1108                        // Unload containers
1109                        unloadAllContainers(args);
1110                    }
1111                    if (reportStatus) {
1112                        try {
1113                            if (DEBUG_SD_INSTALL) Log.i(TAG, "Invoking MountService call back");
1114                            PackageHelper.getMountService().finishMediaUpdate();
1115                        } catch (RemoteException e) {
1116                            Log.e(TAG, "MountService not running?");
1117                        }
1118                    }
1119                } break;
1120                case WRITE_SETTINGS: {
1121                    Process.setThreadPriority(Process.THREAD_PRIORITY_DEFAULT);
1122                    synchronized (mPackages) {
1123                        removeMessages(WRITE_SETTINGS);
1124                        removeMessages(WRITE_PACKAGE_RESTRICTIONS);
1125                        mSettings.writeLPr();
1126                        mDirtyUsers.clear();
1127                    }
1128                    Process.setThreadPriority(Process.THREAD_PRIORITY_BACKGROUND);
1129                } break;
1130                case WRITE_PACKAGE_RESTRICTIONS: {
1131                    Process.setThreadPriority(Process.THREAD_PRIORITY_DEFAULT);
1132                    synchronized (mPackages) {
1133                        removeMessages(WRITE_PACKAGE_RESTRICTIONS);
1134                        for (int userId : mDirtyUsers) {
1135                            mSettings.writePackageRestrictionsLPr(userId);
1136                        }
1137                        mDirtyUsers.clear();
1138                    }
1139                    Process.setThreadPriority(Process.THREAD_PRIORITY_BACKGROUND);
1140                } break;
1141                case CHECK_PENDING_VERIFICATION: {
1142                    final int verificationId = msg.arg1;
1143                    final PackageVerificationState state = mPendingVerification.get(verificationId);
1144
1145                    if ((state != null) && !state.timeoutExtended()) {
1146                        final InstallArgs args = state.getInstallArgs();
1147                        final Uri originUri = Uri.fromFile(args.origin.resolvedFile);
1148
1149                        Slog.i(TAG, "Verification timed out for " + originUri);
1150                        mPendingVerification.remove(verificationId);
1151
1152                        int ret = PackageManager.INSTALL_FAILED_VERIFICATION_FAILURE;
1153
1154                        if (getDefaultVerificationResponse() == PackageManager.VERIFICATION_ALLOW) {
1155                            Slog.i(TAG, "Continuing with installation of " + originUri);
1156                            state.setVerifierResponse(Binder.getCallingUid(),
1157                                    PackageManager.VERIFICATION_ALLOW_WITHOUT_SUFFICIENT);
1158                            broadcastPackageVerified(verificationId, originUri,
1159                                    PackageManager.VERIFICATION_ALLOW,
1160                                    state.getInstallArgs().getUser());
1161                            try {
1162                                ret = args.copyApk(mContainerService, true);
1163                            } catch (RemoteException e) {
1164                                Slog.e(TAG, "Could not contact the ContainerService");
1165                            }
1166                        } else {
1167                            broadcastPackageVerified(verificationId, originUri,
1168                                    PackageManager.VERIFICATION_REJECT,
1169                                    state.getInstallArgs().getUser());
1170                        }
1171
1172                        processPendingInstall(args, ret);
1173                        mHandler.sendEmptyMessage(MCS_UNBIND);
1174                    }
1175                    break;
1176                }
1177                case PACKAGE_VERIFIED: {
1178                    final int verificationId = msg.arg1;
1179
1180                    final PackageVerificationState state = mPendingVerification.get(verificationId);
1181                    if (state == null) {
1182                        Slog.w(TAG, "Invalid verification token " + verificationId + " received");
1183                        break;
1184                    }
1185
1186                    final PackageVerificationResponse response = (PackageVerificationResponse) msg.obj;
1187
1188                    state.setVerifierResponse(response.callerUid, response.code);
1189
1190                    if (state.isVerificationComplete()) {
1191                        mPendingVerification.remove(verificationId);
1192
1193                        final InstallArgs args = state.getInstallArgs();
1194                        final Uri originUri = Uri.fromFile(args.origin.resolvedFile);
1195
1196                        int ret;
1197                        if (state.isInstallAllowed()) {
1198                            ret = PackageManager.INSTALL_FAILED_INTERNAL_ERROR;
1199                            broadcastPackageVerified(verificationId, originUri,
1200                                    response.code, state.getInstallArgs().getUser());
1201                            try {
1202                                ret = args.copyApk(mContainerService, true);
1203                            } catch (RemoteException e) {
1204                                Slog.e(TAG, "Could not contact the ContainerService");
1205                            }
1206                        } else {
1207                            ret = PackageManager.INSTALL_FAILED_VERIFICATION_FAILURE;
1208                        }
1209
1210                        processPendingInstall(args, ret);
1211
1212                        mHandler.sendEmptyMessage(MCS_UNBIND);
1213                    }
1214
1215                    break;
1216                }
1217            }
1218        }
1219    }
1220
1221    Bundle extrasForInstallResult(PackageInstalledInfo res) {
1222        Bundle extras = null;
1223        switch (res.returnCode) {
1224            case PackageManager.INSTALL_FAILED_DUPLICATE_PERMISSION: {
1225                extras = new Bundle();
1226                extras.putString(PackageManager.EXTRA_FAILURE_EXISTING_PERMISSION,
1227                        res.origPermission);
1228                extras.putString(PackageManager.EXTRA_FAILURE_EXISTING_PACKAGE,
1229                        res.origPackage);
1230                break;
1231            }
1232        }
1233        return extras;
1234    }
1235
1236    void scheduleWriteSettingsLocked() {
1237        if (!mHandler.hasMessages(WRITE_SETTINGS)) {
1238            mHandler.sendEmptyMessageDelayed(WRITE_SETTINGS, WRITE_SETTINGS_DELAY);
1239        }
1240    }
1241
1242    void scheduleWritePackageRestrictionsLocked(int userId) {
1243        if (!sUserManager.exists(userId)) return;
1244        mDirtyUsers.add(userId);
1245        if (!mHandler.hasMessages(WRITE_PACKAGE_RESTRICTIONS)) {
1246            mHandler.sendEmptyMessageDelayed(WRITE_PACKAGE_RESTRICTIONS, WRITE_SETTINGS_DELAY);
1247        }
1248    }
1249
1250    public static final PackageManagerService main(Context context, Installer installer,
1251            boolean factoryTest, boolean onlyCore) {
1252        PackageManagerService m = new PackageManagerService(context, installer,
1253                factoryTest, onlyCore);
1254        ServiceManager.addService("package", m);
1255        return m;
1256    }
1257
1258    static String[] splitString(String str, char sep) {
1259        int count = 1;
1260        int i = 0;
1261        while ((i=str.indexOf(sep, i)) >= 0) {
1262            count++;
1263            i++;
1264        }
1265
1266        String[] res = new String[count];
1267        i=0;
1268        count = 0;
1269        int lastI=0;
1270        while ((i=str.indexOf(sep, i)) >= 0) {
1271            res[count] = str.substring(lastI, i);
1272            count++;
1273            i++;
1274            lastI = i;
1275        }
1276        res[count] = str.substring(lastI, str.length());
1277        return res;
1278    }
1279
1280    private static void getDefaultDisplayMetrics(Context context, DisplayMetrics metrics) {
1281        DisplayManager displayManager = (DisplayManager) context.getSystemService(
1282                Context.DISPLAY_SERVICE);
1283        displayManager.getDisplay(Display.DEFAULT_DISPLAY).getMetrics(metrics);
1284    }
1285
1286    public PackageManagerService(Context context, Installer installer,
1287            boolean factoryTest, boolean onlyCore) {
1288        EventLog.writeEvent(EventLogTags.BOOT_PROGRESS_PMS_START,
1289                SystemClock.uptimeMillis());
1290
1291        if (mSdkVersion <= 0) {
1292            Slog.w(TAG, "**** ro.build.version.sdk not set!");
1293        }
1294
1295        mContext = context;
1296        mFactoryTest = factoryTest;
1297        mOnlyCore = onlyCore;
1298        mLazyDexOpt = "eng".equals(SystemProperties.get("ro.build.type"));
1299        mMetrics = new DisplayMetrics();
1300        mSettings = new Settings(context);
1301        mSettings.addSharedUserLPw("android.uid.system", Process.SYSTEM_UID,
1302                ApplicationInfo.FLAG_SYSTEM|ApplicationInfo.FLAG_PRIVILEGED);
1303        mSettings.addSharedUserLPw("android.uid.phone", RADIO_UID,
1304                ApplicationInfo.FLAG_SYSTEM|ApplicationInfo.FLAG_PRIVILEGED);
1305        mSettings.addSharedUserLPw("android.uid.log", LOG_UID,
1306                ApplicationInfo.FLAG_SYSTEM|ApplicationInfo.FLAG_PRIVILEGED);
1307        mSettings.addSharedUserLPw("android.uid.nfc", NFC_UID,
1308                ApplicationInfo.FLAG_SYSTEM|ApplicationInfo.FLAG_PRIVILEGED);
1309        mSettings.addSharedUserLPw("android.uid.bluetooth", BLUETOOTH_UID,
1310                ApplicationInfo.FLAG_SYSTEM|ApplicationInfo.FLAG_PRIVILEGED);
1311        mSettings.addSharedUserLPw("android.uid.shell", SHELL_UID,
1312                ApplicationInfo.FLAG_SYSTEM|ApplicationInfo.FLAG_PRIVILEGED);
1313
1314        // TODO: add a property to control this?
1315        long dexOptLRUThresholdInMinutes;
1316        if (mLazyDexOpt) {
1317            dexOptLRUThresholdInMinutes = 30; // only last 30 minutes of apps for eng builds.
1318        } else {
1319            dexOptLRUThresholdInMinutes = 7 * 24 * 60; // apps used in the 7 days for users.
1320        }
1321        mDexOptLRUThresholdInMills = dexOptLRUThresholdInMinutes * 60 * 1000;
1322
1323        String separateProcesses = SystemProperties.get("debug.separate_processes");
1324        if (separateProcesses != null && separateProcesses.length() > 0) {
1325            if ("*".equals(separateProcesses)) {
1326                mDefParseFlags = PackageParser.PARSE_IGNORE_PROCESSES;
1327                mSeparateProcesses = null;
1328                Slog.w(TAG, "Running with debug.separate_processes: * (ALL)");
1329            } else {
1330                mDefParseFlags = 0;
1331                mSeparateProcesses = separateProcesses.split(",");
1332                Slog.w(TAG, "Running with debug.separate_processes: "
1333                        + separateProcesses);
1334            }
1335        } else {
1336            mDefParseFlags = 0;
1337            mSeparateProcesses = null;
1338        }
1339
1340        mInstaller = installer;
1341
1342        getDefaultDisplayMetrics(context, mMetrics);
1343
1344        SystemConfig systemConfig = SystemConfig.getInstance();
1345        mGlobalGids = systemConfig.getGlobalGids();
1346        mSystemPermissions = systemConfig.getSystemPermissions();
1347        mAvailableFeatures = systemConfig.getAvailableFeatures();
1348
1349        synchronized (mInstallLock) {
1350        // writer
1351        synchronized (mPackages) {
1352            mHandlerThread = new ServiceThread(TAG,
1353                    Process.THREAD_PRIORITY_BACKGROUND, true /*allowIo*/);
1354            mHandlerThread.start();
1355            mHandler = new PackageHandler(mHandlerThread.getLooper());
1356            Watchdog.getInstance().addThread(mHandler, WATCHDOG_TIMEOUT);
1357
1358            File dataDir = Environment.getDataDirectory();
1359            mAppDataDir = new File(dataDir, "data");
1360            mAppInstallDir = new File(dataDir, "app");
1361            mAppLib32InstallDir = new File(dataDir, "app-lib");
1362            mAsecInternalPath = new File(dataDir, "app-asec").getPath();
1363            mUserAppDataDir = new File(dataDir, "user");
1364            mDrmAppPrivateInstallDir = new File(dataDir, "app-private");
1365
1366            sUserManager = new UserManagerService(context, this,
1367                    mInstallLock, mPackages);
1368
1369            // Propagate permission configuration in to package manager.
1370            ArrayMap<String, SystemConfig.PermissionEntry> permConfig
1371                    = systemConfig.getPermissions();
1372            for (int i=0; i<permConfig.size(); i++) {
1373                SystemConfig.PermissionEntry perm = permConfig.valueAt(i);
1374                BasePermission bp = mSettings.mPermissions.get(perm.name);
1375                if (bp == null) {
1376                    bp = new BasePermission(perm.name, "android", BasePermission.TYPE_BUILTIN);
1377                    mSettings.mPermissions.put(perm.name, bp);
1378                }
1379                if (perm.gids != null) {
1380                    bp.gids = appendInts(bp.gids, perm.gids);
1381                }
1382            }
1383
1384            ArrayMap<String, String> libConfig = systemConfig.getSharedLibraries();
1385            for (int i=0; i<libConfig.size(); i++) {
1386                mSharedLibraries.put(libConfig.keyAt(i),
1387                        new SharedLibraryEntry(libConfig.valueAt(i), null));
1388            }
1389
1390            mFoundPolicyFile = SELinuxMMAC.readInstallPolicy();
1391
1392            mRestoredSettings = mSettings.readLPw(this, sUserManager.getUsers(false),
1393                    mSdkVersion, mOnlyCore);
1394
1395            String customResolverActivity = Resources.getSystem().getString(
1396                    R.string.config_customResolverActivity);
1397            if (TextUtils.isEmpty(customResolverActivity)) {
1398                customResolverActivity = null;
1399            } else {
1400                mCustomResolverComponentName = ComponentName.unflattenFromString(
1401                        customResolverActivity);
1402            }
1403
1404            long startTime = SystemClock.uptimeMillis();
1405
1406            EventLog.writeEvent(EventLogTags.BOOT_PROGRESS_PMS_SYSTEM_SCAN_START,
1407                    startTime);
1408
1409            // Set flag to monitor and not change apk file paths when
1410            // scanning install directories.
1411            final int scanFlags = SCAN_NO_PATHS | SCAN_DEFER_DEX | SCAN_BOOTING;
1412
1413            final ArraySet<String> alreadyDexOpted = new ArraySet<String>();
1414
1415            /**
1416             * Add everything in the in the boot class path to the
1417             * list of process files because dexopt will have been run
1418             * if necessary during zygote startup.
1419             */
1420            final String bootClassPath = System.getenv("BOOTCLASSPATH");
1421            final String systemServerClassPath = System.getenv("SYSTEMSERVERCLASSPATH");
1422
1423            if (bootClassPath != null) {
1424                String[] bootClassPathElements = splitString(bootClassPath, ':');
1425                for (String element : bootClassPathElements) {
1426                    alreadyDexOpted.add(element);
1427                }
1428            } else {
1429                Slog.w(TAG, "No BOOTCLASSPATH found!");
1430            }
1431
1432            if (systemServerClassPath != null) {
1433                String[] systemServerClassPathElements = splitString(systemServerClassPath, ':');
1434                for (String element : systemServerClassPathElements) {
1435                    alreadyDexOpted.add(element);
1436                }
1437            } else {
1438                Slog.w(TAG, "No SYSTEMSERVERCLASSPATH found!");
1439            }
1440
1441            final List<String> allInstructionSets = getAllInstructionSets();
1442            final String[] dexCodeInstructionSets =
1443                getDexCodeInstructionSets(allInstructionSets.toArray(new String[allInstructionSets.size()]));
1444
1445            /**
1446             * Ensure all external libraries have had dexopt run on them.
1447             */
1448            if (mSharedLibraries.size() > 0) {
1449                // NOTE: For now, we're compiling these system "shared libraries"
1450                // (and framework jars) into all available architectures. It's possible
1451                // to compile them only when we come across an app that uses them (there's
1452                // already logic for that in scanPackageLI) but that adds some complexity.
1453                for (String dexCodeInstructionSet : dexCodeInstructionSets) {
1454                    for (SharedLibraryEntry libEntry : mSharedLibraries.values()) {
1455                        final String lib = libEntry.path;
1456                        if (lib == null) {
1457                            continue;
1458                        }
1459
1460                        try {
1461                            byte dexoptRequired = DexFile.isDexOptNeededInternal(lib, null,
1462                                                                                 dexCodeInstructionSet,
1463                                                                                 false);
1464                            if (dexoptRequired != DexFile.UP_TO_DATE) {
1465                                alreadyDexOpted.add(lib);
1466
1467                                // The list of "shared libraries" we have at this point is
1468                                if (dexoptRequired == DexFile.DEXOPT_NEEDED) {
1469                                    mInstaller.dexopt(lib, Process.SYSTEM_UID, true, dexCodeInstructionSet);
1470                                } else {
1471                                    mInstaller.patchoat(lib, Process.SYSTEM_UID, true, dexCodeInstructionSet);
1472                                }
1473                            }
1474                        } catch (FileNotFoundException e) {
1475                            Slog.w(TAG, "Library not found: " + lib);
1476                        } catch (IOException e) {
1477                            Slog.w(TAG, "Cannot dexopt " + lib + "; is it an APK or JAR? "
1478                                    + e.getMessage());
1479                        }
1480                    }
1481                }
1482            }
1483
1484            File frameworkDir = new File(Environment.getRootDirectory(), "framework");
1485
1486            // Gross hack for now: we know this file doesn't contain any
1487            // code, so don't dexopt it to avoid the resulting log spew.
1488            alreadyDexOpted.add(frameworkDir.getPath() + "/framework-res.apk");
1489
1490            // Gross hack for now: we know this file is only part of
1491            // the boot class path for art, so don't dexopt it to
1492            // avoid the resulting log spew.
1493            alreadyDexOpted.add(frameworkDir.getPath() + "/core-libart.jar");
1494
1495            /**
1496             * And there are a number of commands implemented in Java, which
1497             * we currently need to do the dexopt on so that they can be
1498             * run from a non-root shell.
1499             */
1500            String[] frameworkFiles = frameworkDir.list();
1501            if (frameworkFiles != null) {
1502                // TODO: We could compile these only for the most preferred ABI. We should
1503                // first double check that the dex files for these commands are not referenced
1504                // by other system apps.
1505                for (String dexCodeInstructionSet : dexCodeInstructionSets) {
1506                    for (int i=0; i<frameworkFiles.length; i++) {
1507                        File libPath = new File(frameworkDir, frameworkFiles[i]);
1508                        String path = libPath.getPath();
1509                        // Skip the file if we already did it.
1510                        if (alreadyDexOpted.contains(path)) {
1511                            continue;
1512                        }
1513                        // Skip the file if it is not a type we want to dexopt.
1514                        if (!path.endsWith(".apk") && !path.endsWith(".jar")) {
1515                            continue;
1516                        }
1517                        try {
1518                            byte dexoptRequired = DexFile.isDexOptNeededInternal(path, null,
1519                                                                                 dexCodeInstructionSet,
1520                                                                                 false);
1521                            if (dexoptRequired == DexFile.DEXOPT_NEEDED) {
1522                                mInstaller.dexopt(path, Process.SYSTEM_UID, true, dexCodeInstructionSet);
1523                            } else if (dexoptRequired == DexFile.PATCHOAT_NEEDED) {
1524                                mInstaller.patchoat(path, Process.SYSTEM_UID, true, dexCodeInstructionSet);
1525                            }
1526                        } catch (FileNotFoundException e) {
1527                            Slog.w(TAG, "Jar not found: " + path);
1528                        } catch (IOException e) {
1529                            Slog.w(TAG, "Exception reading jar: " + path, e);
1530                        }
1531                    }
1532                }
1533            }
1534
1535            // Collect vendor overlay packages.
1536            // (Do this before scanning any apps.)
1537            // For security and version matching reason, only consider
1538            // overlay packages if they reside in VENDOR_OVERLAY_DIR.
1539            File vendorOverlayDir = new File(VENDOR_OVERLAY_DIR);
1540            scanDirLI(vendorOverlayDir, PackageParser.PARSE_IS_SYSTEM
1541                    | PackageParser.PARSE_IS_SYSTEM_DIR, scanFlags | SCAN_TRUSTED_OVERLAY, 0);
1542
1543            // Find base frameworks (resource packages without code).
1544            scanDirLI(frameworkDir, PackageParser.PARSE_IS_SYSTEM
1545                    | PackageParser.PARSE_IS_SYSTEM_DIR
1546                    | PackageParser.PARSE_IS_PRIVILEGED,
1547                    scanFlags | SCAN_NO_DEX, 0);
1548
1549            // Collected privileged system packages.
1550            final File privilegedAppDir = new File(Environment.getRootDirectory(), "priv-app");
1551            scanDirLI(privilegedAppDir, PackageParser.PARSE_IS_SYSTEM
1552                    | PackageParser.PARSE_IS_SYSTEM_DIR
1553                    | PackageParser.PARSE_IS_PRIVILEGED, scanFlags, 0);
1554
1555            // Collect ordinary system packages.
1556            final File systemAppDir = new File(Environment.getRootDirectory(), "app");
1557            scanDirLI(systemAppDir, PackageParser.PARSE_IS_SYSTEM
1558                    | PackageParser.PARSE_IS_SYSTEM_DIR, scanFlags, 0);
1559
1560            // Collect all vendor packages.
1561            File vendorAppDir = new File("/vendor/app");
1562            try {
1563                vendorAppDir = vendorAppDir.getCanonicalFile();
1564            } catch (IOException e) {
1565                // failed to look up canonical path, continue with original one
1566            }
1567            scanDirLI(vendorAppDir, PackageParser.PARSE_IS_SYSTEM
1568                    | PackageParser.PARSE_IS_SYSTEM_DIR, scanFlags, 0);
1569
1570            // Collect all OEM packages.
1571            final File oemAppDir = new File(Environment.getOemDirectory(), "app");
1572            scanDirLI(oemAppDir, PackageParser.PARSE_IS_SYSTEM
1573                    | PackageParser.PARSE_IS_SYSTEM_DIR, scanFlags, 0);
1574
1575            if (DEBUG_UPGRADE) Log.v(TAG, "Running installd update commands");
1576            mInstaller.moveFiles();
1577
1578            // Prune any system packages that no longer exist.
1579            final List<String> possiblyDeletedUpdatedSystemApps = new ArrayList<String>();
1580            final ArrayMap<String, File> expectingBetter = new ArrayMap<>();
1581            if (!mOnlyCore) {
1582                Iterator<PackageSetting> psit = mSettings.mPackages.values().iterator();
1583                while (psit.hasNext()) {
1584                    PackageSetting ps = psit.next();
1585
1586                    /*
1587                     * If this is not a system app, it can't be a
1588                     * disable system app.
1589                     */
1590                    if ((ps.pkgFlags & ApplicationInfo.FLAG_SYSTEM) == 0) {
1591                        continue;
1592                    }
1593
1594                    /*
1595                     * If the package is scanned, it's not erased.
1596                     */
1597                    final PackageParser.Package scannedPkg = mPackages.get(ps.name);
1598                    if (scannedPkg != null) {
1599                        /*
1600                         * If the system app is both scanned and in the
1601                         * disabled packages list, then it must have been
1602                         * added via OTA. Remove it from the currently
1603                         * scanned package so the previously user-installed
1604                         * application can be scanned.
1605                         */
1606                        if (mSettings.isDisabledSystemPackageLPr(ps.name)) {
1607                            logCriticalInfo(Log.WARN, "Expecting better updated system app for "
1608                                    + ps.name + "; removing system app.  Last known codePath="
1609                                    + ps.codePathString + ", installStatus=" + ps.installStatus
1610                                    + ", versionCode=" + ps.versionCode + "; scanned versionCode="
1611                                    + scannedPkg.mVersionCode);
1612                            removePackageLI(ps, true);
1613                            expectingBetter.put(ps.name, ps.codePath);
1614                        }
1615
1616                        continue;
1617                    }
1618
1619                    if (!mSettings.isDisabledSystemPackageLPr(ps.name)) {
1620                        psit.remove();
1621                        logCriticalInfo(Log.WARN, "System package " + ps.name
1622                                + " no longer exists; wiping its data");
1623                        removeDataDirsLI(ps.name);
1624                    } else {
1625                        final PackageSetting disabledPs = mSettings.getDisabledSystemPkgLPr(ps.name);
1626                        if (disabledPs.codePath == null || !disabledPs.codePath.exists()) {
1627                            possiblyDeletedUpdatedSystemApps.add(ps.name);
1628                        }
1629                    }
1630                }
1631            }
1632
1633            //look for any incomplete package installations
1634            ArrayList<PackageSetting> deletePkgsList = mSettings.getListOfIncompleteInstallPackagesLPr();
1635            //clean up list
1636            for(int i = 0; i < deletePkgsList.size(); i++) {
1637                //clean up here
1638                cleanupInstallFailedPackage(deletePkgsList.get(i));
1639            }
1640            //delete tmp files
1641            deleteTempPackageFiles();
1642
1643            // Remove any shared userIDs that have no associated packages
1644            mSettings.pruneSharedUsersLPw();
1645
1646            if (!mOnlyCore) {
1647                EventLog.writeEvent(EventLogTags.BOOT_PROGRESS_PMS_DATA_SCAN_START,
1648                        SystemClock.uptimeMillis());
1649                scanDirLI(mAppInstallDir, 0, scanFlags, 0);
1650
1651                scanDirLI(mDrmAppPrivateInstallDir, PackageParser.PARSE_FORWARD_LOCK,
1652                        scanFlags, 0);
1653
1654                /**
1655                 * Remove disable package settings for any updated system
1656                 * apps that were removed via an OTA. If they're not a
1657                 * previously-updated app, remove them completely.
1658                 * Otherwise, just revoke their system-level permissions.
1659                 */
1660                for (String deletedAppName : possiblyDeletedUpdatedSystemApps) {
1661                    PackageParser.Package deletedPkg = mPackages.get(deletedAppName);
1662                    mSettings.removeDisabledSystemPackageLPw(deletedAppName);
1663
1664                    String msg;
1665                    if (deletedPkg == null) {
1666                        msg = "Updated system package " + deletedAppName
1667                                + " no longer exists; wiping its data";
1668                        removeDataDirsLI(deletedAppName);
1669                    } else {
1670                        msg = "Updated system app + " + deletedAppName
1671                                + " no longer present; removing system privileges for "
1672                                + deletedAppName;
1673
1674                        deletedPkg.applicationInfo.flags &= ~ApplicationInfo.FLAG_SYSTEM;
1675
1676                        PackageSetting deletedPs = mSettings.mPackages.get(deletedAppName);
1677                        deletedPs.pkgFlags &= ~ApplicationInfo.FLAG_SYSTEM;
1678                    }
1679                    logCriticalInfo(Log.WARN, msg);
1680                }
1681
1682                /**
1683                 * Make sure all system apps that we expected to appear on
1684                 * the userdata partition actually showed up. If they never
1685                 * appeared, crawl back and revive the system version.
1686                 */
1687                for (int i = 0; i < expectingBetter.size(); i++) {
1688                    final String packageName = expectingBetter.keyAt(i);
1689                    if (!mPackages.containsKey(packageName)) {
1690                        final File scanFile = expectingBetter.valueAt(i);
1691
1692                        logCriticalInfo(Log.WARN, "Expected better " + packageName
1693                                + " but never showed up; reverting to system");
1694
1695                        final int reparseFlags;
1696                        if (FileUtils.contains(privilegedAppDir, scanFile)) {
1697                            reparseFlags = PackageParser.PARSE_IS_SYSTEM
1698                                    | PackageParser.PARSE_IS_SYSTEM_DIR
1699                                    | PackageParser.PARSE_IS_PRIVILEGED;
1700                        } else if (FileUtils.contains(systemAppDir, scanFile)) {
1701                            reparseFlags = PackageParser.PARSE_IS_SYSTEM
1702                                    | PackageParser.PARSE_IS_SYSTEM_DIR;
1703                        } else if (FileUtils.contains(vendorAppDir, scanFile)) {
1704                            reparseFlags = PackageParser.PARSE_IS_SYSTEM
1705                                    | PackageParser.PARSE_IS_SYSTEM_DIR;
1706                        } else if (FileUtils.contains(oemAppDir, scanFile)) {
1707                            reparseFlags = PackageParser.PARSE_IS_SYSTEM
1708                                    | PackageParser.PARSE_IS_SYSTEM_DIR;
1709                        } else {
1710                            Slog.e(TAG, "Ignoring unexpected fallback path " + scanFile);
1711                            continue;
1712                        }
1713
1714                        mSettings.enableSystemPackageLPw(packageName);
1715
1716                        try {
1717                            scanPackageLI(scanFile, reparseFlags, scanFlags, 0, null);
1718                        } catch (PackageManagerException e) {
1719                            Slog.e(TAG, "Failed to parse original system package: "
1720                                    + e.getMessage());
1721                        }
1722                    }
1723                }
1724            }
1725
1726            // Now that we know all of the shared libraries, update all clients to have
1727            // the correct library paths.
1728            updateAllSharedLibrariesLPw();
1729
1730            for (SharedUserSetting setting : mSettings.getAllSharedUsersLPw()) {
1731                // NOTE: We ignore potential failures here during a system scan (like
1732                // the rest of the commands above) because there's precious little we
1733                // can do about it. A settings error is reported, though.
1734                adjustCpuAbisForSharedUserLPw(setting.packages, null /* scanned package */,
1735                        false /* force dexopt */, false /* defer dexopt */);
1736            }
1737
1738            // Now that we know all the packages we are keeping,
1739            // read and update their last usage times.
1740            mPackageUsage.readLP();
1741
1742            EventLog.writeEvent(EventLogTags.BOOT_PROGRESS_PMS_SCAN_END,
1743                    SystemClock.uptimeMillis());
1744            Slog.i(TAG, "Time to scan packages: "
1745                    + ((SystemClock.uptimeMillis()-startTime)/1000f)
1746                    + " seconds");
1747
1748            // If the platform SDK has changed since the last time we booted,
1749            // we need to re-grant app permission to catch any new ones that
1750            // appear.  This is really a hack, and means that apps can in some
1751            // cases get permissions that the user didn't initially explicitly
1752            // allow...  it would be nice to have some better way to handle
1753            // this situation.
1754            final boolean regrantPermissions = mSettings.mInternalSdkPlatform
1755                    != mSdkVersion;
1756            if (regrantPermissions) Slog.i(TAG, "Platform changed from "
1757                    + mSettings.mInternalSdkPlatform + " to " + mSdkVersion
1758                    + "; regranting permissions for internal storage");
1759            mSettings.mInternalSdkPlatform = mSdkVersion;
1760
1761            updatePermissionsLPw(null, null, UPDATE_PERMISSIONS_ALL
1762                    | (regrantPermissions
1763                            ? (UPDATE_PERMISSIONS_REPLACE_PKG|UPDATE_PERMISSIONS_REPLACE_ALL)
1764                            : 0));
1765
1766            // If this is the first boot, and it is a normal boot, then
1767            // we need to initialize the default preferred apps.
1768            if (!mRestoredSettings && !onlyCore) {
1769                mSettings.readDefaultPreferredAppsLPw(this, 0);
1770            }
1771
1772            // If this is first boot after an OTA, and a normal boot, then
1773            // we need to clear code cache directories.
1774            mIsUpgrade = !Build.FINGERPRINT.equals(mSettings.mFingerprint);
1775            if (mIsUpgrade && !onlyCore) {
1776                Slog.i(TAG, "Build fingerprint changed; clearing code caches");
1777                for (String pkgName : mSettings.mPackages.keySet()) {
1778                    deleteCodeCacheDirsLI(pkgName);
1779                }
1780                mSettings.mFingerprint = Build.FINGERPRINT;
1781            }
1782
1783            // All the changes are done during package scanning.
1784            mSettings.updateInternalDatabaseVersion();
1785
1786            // can downgrade to reader
1787            mSettings.writeLPr();
1788
1789            EventLog.writeEvent(EventLogTags.BOOT_PROGRESS_PMS_READY,
1790                    SystemClock.uptimeMillis());
1791
1792
1793            mRequiredVerifierPackage = getRequiredVerifierLPr();
1794        } // synchronized (mPackages)
1795        } // synchronized (mInstallLock)
1796
1797        mInstallerService = new PackageInstallerService(context, this, mAppInstallDir);
1798
1799        // Now after opening every single application zip, make sure they
1800        // are all flushed.  Not really needed, but keeps things nice and
1801        // tidy.
1802        Runtime.getRuntime().gc();
1803    }
1804
1805    @Override
1806    public boolean isFirstBoot() {
1807        return !mRestoredSettings;
1808    }
1809
1810    @Override
1811    public boolean isOnlyCoreApps() {
1812        return mOnlyCore;
1813    }
1814
1815    @Override
1816    public boolean isUpgrade() {
1817        return mIsUpgrade;
1818    }
1819
1820    private String getRequiredVerifierLPr() {
1821        final Intent verification = new Intent(Intent.ACTION_PACKAGE_NEEDS_VERIFICATION);
1822        final List<ResolveInfo> receivers = queryIntentReceivers(verification, PACKAGE_MIME_TYPE,
1823                PackageManager.GET_DISABLED_COMPONENTS, 0 /* TODO: Which userId? */);
1824
1825        String requiredVerifier = null;
1826
1827        final int N = receivers.size();
1828        for (int i = 0; i < N; i++) {
1829            final ResolveInfo info = receivers.get(i);
1830
1831            if (info.activityInfo == null) {
1832                continue;
1833            }
1834
1835            final String packageName = info.activityInfo.packageName;
1836
1837            final PackageSetting ps = mSettings.mPackages.get(packageName);
1838            if (ps == null) {
1839                continue;
1840            }
1841
1842            final GrantedPermissions gp = ps.sharedUser != null ? ps.sharedUser : ps;
1843            if (!gp.grantedPermissions
1844                    .contains(android.Manifest.permission.PACKAGE_VERIFICATION_AGENT)) {
1845                continue;
1846            }
1847
1848            if (requiredVerifier != null) {
1849                throw new RuntimeException("There can be only one required verifier");
1850            }
1851
1852            requiredVerifier = packageName;
1853        }
1854
1855        return requiredVerifier;
1856    }
1857
1858    @Override
1859    public boolean onTransact(int code, Parcel data, Parcel reply, int flags)
1860            throws RemoteException {
1861        try {
1862            return super.onTransact(code, data, reply, flags);
1863        } catch (RuntimeException e) {
1864            if (!(e instanceof SecurityException) && !(e instanceof IllegalArgumentException)) {
1865                Slog.wtf(TAG, "Package Manager Crash", e);
1866            }
1867            throw e;
1868        }
1869    }
1870
1871    void cleanupInstallFailedPackage(PackageSetting ps) {
1872        logCriticalInfo(Log.WARN, "Cleaning up incompletely installed app: " + ps.name);
1873
1874        removeDataDirsLI(ps.name);
1875        if (ps.codePath != null) {
1876            if (ps.codePath.isDirectory()) {
1877                FileUtils.deleteContents(ps.codePath);
1878            }
1879            ps.codePath.delete();
1880        }
1881        if (ps.resourcePath != null && !ps.resourcePath.equals(ps.codePath)) {
1882            if (ps.resourcePath.isDirectory()) {
1883                FileUtils.deleteContents(ps.resourcePath);
1884            }
1885            ps.resourcePath.delete();
1886        }
1887        mSettings.removePackageLPw(ps.name);
1888    }
1889
1890    static int[] appendInts(int[] cur, int[] add) {
1891        if (add == null) return cur;
1892        if (cur == null) return add;
1893        final int N = add.length;
1894        for (int i=0; i<N; i++) {
1895            cur = appendInt(cur, add[i]);
1896        }
1897        return cur;
1898    }
1899
1900    static int[] removeInts(int[] cur, int[] rem) {
1901        if (rem == null) return cur;
1902        if (cur == null) return cur;
1903        final int N = rem.length;
1904        for (int i=0; i<N; i++) {
1905            cur = removeInt(cur, rem[i]);
1906        }
1907        return cur;
1908    }
1909
1910    PackageInfo generatePackageInfo(PackageParser.Package p, int flags, int userId) {
1911        if (!sUserManager.exists(userId)) return null;
1912        final PackageSetting ps = (PackageSetting) p.mExtras;
1913        if (ps == null) {
1914            return null;
1915        }
1916        final GrantedPermissions gp = ps.sharedUser != null ? ps.sharedUser : ps;
1917        final PackageUserState state = ps.readUserState(userId);
1918        return PackageParser.generatePackageInfo(p, gp.gids, flags,
1919                ps.firstInstallTime, ps.lastUpdateTime, gp.grantedPermissions,
1920                state, userId);
1921    }
1922
1923    @Override
1924    public boolean isPackageAvailable(String packageName, int userId) {
1925        if (!sUserManager.exists(userId)) return false;
1926        enforceCrossUserPermission(Binder.getCallingUid(), userId, false, false, "is package available");
1927        synchronized (mPackages) {
1928            PackageParser.Package p = mPackages.get(packageName);
1929            if (p != null) {
1930                final PackageSetting ps = (PackageSetting) p.mExtras;
1931                if (ps != null) {
1932                    final PackageUserState state = ps.readUserState(userId);
1933                    if (state != null) {
1934                        return PackageParser.isAvailable(state);
1935                    }
1936                }
1937            }
1938        }
1939        return false;
1940    }
1941
1942    @Override
1943    public PackageInfo getPackageInfo(String packageName, int flags, int userId) {
1944        if (!sUserManager.exists(userId)) return null;
1945        enforceCrossUserPermission(Binder.getCallingUid(), userId, false, false, "get package info");
1946        // reader
1947        synchronized (mPackages) {
1948            PackageParser.Package p = mPackages.get(packageName);
1949            if (DEBUG_PACKAGE_INFO)
1950                Log.v(TAG, "getPackageInfo " + packageName + ": " + p);
1951            if (p != null) {
1952                return generatePackageInfo(p, flags, userId);
1953            }
1954            if((flags & PackageManager.GET_UNINSTALLED_PACKAGES) != 0) {
1955                return generatePackageInfoFromSettingsLPw(packageName, flags, userId);
1956            }
1957        }
1958        return null;
1959    }
1960
1961    @Override
1962    public String[] currentToCanonicalPackageNames(String[] names) {
1963        String[] out = new String[names.length];
1964        // reader
1965        synchronized (mPackages) {
1966            for (int i=names.length-1; i>=0; i--) {
1967                PackageSetting ps = mSettings.mPackages.get(names[i]);
1968                out[i] = ps != null && ps.realName != null ? ps.realName : names[i];
1969            }
1970        }
1971        return out;
1972    }
1973
1974    @Override
1975    public String[] canonicalToCurrentPackageNames(String[] names) {
1976        String[] out = new String[names.length];
1977        // reader
1978        synchronized (mPackages) {
1979            for (int i=names.length-1; i>=0; i--) {
1980                String cur = mSettings.mRenamedPackages.get(names[i]);
1981                out[i] = cur != null ? cur : names[i];
1982            }
1983        }
1984        return out;
1985    }
1986
1987    @Override
1988    public int getPackageUid(String packageName, int userId) {
1989        if (!sUserManager.exists(userId)) return -1;
1990        enforceCrossUserPermission(Binder.getCallingUid(), userId, false, false, "get package uid");
1991        // reader
1992        synchronized (mPackages) {
1993            PackageParser.Package p = mPackages.get(packageName);
1994            if(p != null) {
1995                return UserHandle.getUid(userId, p.applicationInfo.uid);
1996            }
1997            PackageSetting ps = mSettings.mPackages.get(packageName);
1998            if((ps == null) || (ps.pkg == null) || (ps.pkg.applicationInfo == null)) {
1999                return -1;
2000            }
2001            p = ps.pkg;
2002            return p != null ? UserHandle.getUid(userId, p.applicationInfo.uid) : -1;
2003        }
2004    }
2005
2006    @Override
2007    public int[] getPackageGids(String packageName) {
2008        // reader
2009        synchronized (mPackages) {
2010            PackageParser.Package p = mPackages.get(packageName);
2011            if (DEBUG_PACKAGE_INFO)
2012                Log.v(TAG, "getPackageGids" + packageName + ": " + p);
2013            if (p != null) {
2014                final PackageSetting ps = (PackageSetting)p.mExtras;
2015                return ps.getGids();
2016            }
2017        }
2018        // stupid thing to indicate an error.
2019        return new int[0];
2020    }
2021
2022    static final PermissionInfo generatePermissionInfo(
2023            BasePermission bp, int flags) {
2024        if (bp.perm != null) {
2025            return PackageParser.generatePermissionInfo(bp.perm, flags);
2026        }
2027        PermissionInfo pi = new PermissionInfo();
2028        pi.name = bp.name;
2029        pi.packageName = bp.sourcePackage;
2030        pi.nonLocalizedLabel = bp.name;
2031        pi.protectionLevel = bp.protectionLevel;
2032        return pi;
2033    }
2034
2035    @Override
2036    public PermissionInfo getPermissionInfo(String name, int flags) {
2037        // reader
2038        synchronized (mPackages) {
2039            final BasePermission p = mSettings.mPermissions.get(name);
2040            if (p != null) {
2041                return generatePermissionInfo(p, flags);
2042            }
2043            return null;
2044        }
2045    }
2046
2047    @Override
2048    public List<PermissionInfo> queryPermissionsByGroup(String group, int flags) {
2049        // reader
2050        synchronized (mPackages) {
2051            ArrayList<PermissionInfo> out = new ArrayList<PermissionInfo>(10);
2052            for (BasePermission p : mSettings.mPermissions.values()) {
2053                if (group == null) {
2054                    if (p.perm == null || p.perm.info.group == null) {
2055                        out.add(generatePermissionInfo(p, flags));
2056                    }
2057                } else {
2058                    if (p.perm != null && group.equals(p.perm.info.group)) {
2059                        out.add(PackageParser.generatePermissionInfo(p.perm, flags));
2060                    }
2061                }
2062            }
2063
2064            if (out.size() > 0) {
2065                return out;
2066            }
2067            return mPermissionGroups.containsKey(group) ? out : null;
2068        }
2069    }
2070
2071    @Override
2072    public PermissionGroupInfo getPermissionGroupInfo(String name, int flags) {
2073        // reader
2074        synchronized (mPackages) {
2075            return PackageParser.generatePermissionGroupInfo(
2076                    mPermissionGroups.get(name), flags);
2077        }
2078    }
2079
2080    @Override
2081    public List<PermissionGroupInfo> getAllPermissionGroups(int flags) {
2082        // reader
2083        synchronized (mPackages) {
2084            final int N = mPermissionGroups.size();
2085            ArrayList<PermissionGroupInfo> out
2086                    = new ArrayList<PermissionGroupInfo>(N);
2087            for (PackageParser.PermissionGroup pg : mPermissionGroups.values()) {
2088                out.add(PackageParser.generatePermissionGroupInfo(pg, flags));
2089            }
2090            return out;
2091        }
2092    }
2093
2094    private ApplicationInfo generateApplicationInfoFromSettingsLPw(String packageName, int flags,
2095            int userId) {
2096        if (!sUserManager.exists(userId)) return null;
2097        PackageSetting ps = mSettings.mPackages.get(packageName);
2098        if (ps != null) {
2099            if (ps.pkg == null) {
2100                PackageInfo pInfo = generatePackageInfoFromSettingsLPw(packageName,
2101                        flags, userId);
2102                if (pInfo != null) {
2103                    return pInfo.applicationInfo;
2104                }
2105                return null;
2106            }
2107            return PackageParser.generateApplicationInfo(ps.pkg, flags,
2108                    ps.readUserState(userId), userId);
2109        }
2110        return null;
2111    }
2112
2113    private PackageInfo generatePackageInfoFromSettingsLPw(String packageName, int flags,
2114            int userId) {
2115        if (!sUserManager.exists(userId)) return null;
2116        PackageSetting ps = mSettings.mPackages.get(packageName);
2117        if (ps != null) {
2118            PackageParser.Package pkg = ps.pkg;
2119            if (pkg == null) {
2120                if ((flags & PackageManager.GET_UNINSTALLED_PACKAGES) == 0) {
2121                    return null;
2122                }
2123                // Only data remains, so we aren't worried about code paths
2124                pkg = new PackageParser.Package(packageName);
2125                pkg.applicationInfo.packageName = packageName;
2126                pkg.applicationInfo.flags = ps.pkgFlags | ApplicationInfo.FLAG_IS_DATA_ONLY;
2127                pkg.applicationInfo.dataDir =
2128                        getDataPathForPackage(packageName, 0).getPath();
2129                pkg.applicationInfo.primaryCpuAbi = ps.primaryCpuAbiString;
2130                pkg.applicationInfo.secondaryCpuAbi = ps.secondaryCpuAbiString;
2131            }
2132            return generatePackageInfo(pkg, flags, userId);
2133        }
2134        return null;
2135    }
2136
2137    @Override
2138    public ApplicationInfo getApplicationInfo(String packageName, int flags, int userId) {
2139        if (!sUserManager.exists(userId)) return null;
2140        enforceCrossUserPermission(Binder.getCallingUid(), userId, false, false, "get application info");
2141        // writer
2142        synchronized (mPackages) {
2143            PackageParser.Package p = mPackages.get(packageName);
2144            if (DEBUG_PACKAGE_INFO) Log.v(
2145                    TAG, "getApplicationInfo " + packageName
2146                    + ": " + p);
2147            if (p != null) {
2148                PackageSetting ps = mSettings.mPackages.get(packageName);
2149                if (ps == null) return null;
2150                // Note: isEnabledLP() does not apply here - always return info
2151                return PackageParser.generateApplicationInfo(
2152                        p, flags, ps.readUserState(userId), userId);
2153            }
2154            if ("android".equals(packageName)||"system".equals(packageName)) {
2155                return mAndroidApplication;
2156            }
2157            if ((flags & PackageManager.GET_UNINSTALLED_PACKAGES) != 0) {
2158                return generateApplicationInfoFromSettingsLPw(packageName, flags, userId);
2159            }
2160        }
2161        return null;
2162    }
2163
2164
2165    @Override
2166    public void freeStorageAndNotify(final long freeStorageSize, final IPackageDataObserver observer) {
2167        mContext.enforceCallingOrSelfPermission(
2168                android.Manifest.permission.CLEAR_APP_CACHE, null);
2169        // Queue up an async operation since clearing cache may take a little while.
2170        mHandler.post(new Runnable() {
2171            public void run() {
2172                mHandler.removeCallbacks(this);
2173                int retCode = -1;
2174                synchronized (mInstallLock) {
2175                    retCode = mInstaller.freeCache(freeStorageSize);
2176                    if (retCode < 0) {
2177                        Slog.w(TAG, "Couldn't clear application caches");
2178                    }
2179                }
2180                if (observer != null) {
2181                    try {
2182                        observer.onRemoveCompleted(null, (retCode >= 0));
2183                    } catch (RemoteException e) {
2184                        Slog.w(TAG, "RemoveException when invoking call back");
2185                    }
2186                }
2187            }
2188        });
2189    }
2190
2191    @Override
2192    public void freeStorage(final long freeStorageSize, final IntentSender pi) {
2193        mContext.enforceCallingOrSelfPermission(
2194                android.Manifest.permission.CLEAR_APP_CACHE, null);
2195        // Queue up an async operation since clearing cache may take a little while.
2196        mHandler.post(new Runnable() {
2197            public void run() {
2198                mHandler.removeCallbacks(this);
2199                int retCode = -1;
2200                synchronized (mInstallLock) {
2201                    retCode = mInstaller.freeCache(freeStorageSize);
2202                    if (retCode < 0) {
2203                        Slog.w(TAG, "Couldn't clear application caches");
2204                    }
2205                }
2206                if(pi != null) {
2207                    try {
2208                        // Callback via pending intent
2209                        int code = (retCode >= 0) ? 1 : 0;
2210                        pi.sendIntent(null, code, null,
2211                                null, null);
2212                    } catch (SendIntentException e1) {
2213                        Slog.i(TAG, "Failed to send pending intent");
2214                    }
2215                }
2216            }
2217        });
2218    }
2219
2220    void freeStorage(long freeStorageSize) throws IOException {
2221        synchronized (mInstallLock) {
2222            if (mInstaller.freeCache(freeStorageSize) < 0) {
2223                throw new IOException("Failed to free enough space");
2224            }
2225        }
2226    }
2227
2228    @Override
2229    public ActivityInfo getActivityInfo(ComponentName component, int flags, int userId) {
2230        if (!sUserManager.exists(userId)) return null;
2231        enforceCrossUserPermission(Binder.getCallingUid(), userId, false, false, "get activity info");
2232        synchronized (mPackages) {
2233            PackageParser.Activity a = mActivities.mActivities.get(component);
2234
2235            if (DEBUG_PACKAGE_INFO) Log.v(TAG, "getActivityInfo " + component + ": " + a);
2236            if (a != null && mSettings.isEnabledLPr(a.info, flags, userId)) {
2237                PackageSetting ps = mSettings.mPackages.get(component.getPackageName());
2238                if (ps == null) return null;
2239                return PackageParser.generateActivityInfo(a, flags, ps.readUserState(userId),
2240                        userId);
2241            }
2242            if (mResolveComponentName.equals(component)) {
2243                return PackageParser.generateActivityInfo(mResolveActivity, flags,
2244                        new PackageUserState(), userId);
2245            }
2246        }
2247        return null;
2248    }
2249
2250    @Override
2251    public boolean activitySupportsIntent(ComponentName component, Intent intent,
2252            String resolvedType) {
2253        synchronized (mPackages) {
2254            PackageParser.Activity a = mActivities.mActivities.get(component);
2255            if (a == null) {
2256                return false;
2257            }
2258            for (int i=0; i<a.intents.size(); i++) {
2259                if (a.intents.get(i).match(intent.getAction(), resolvedType, intent.getScheme(),
2260                        intent.getData(), intent.getCategories(), TAG) >= 0) {
2261                    return true;
2262                }
2263            }
2264            return false;
2265        }
2266    }
2267
2268    @Override
2269    public ActivityInfo getReceiverInfo(ComponentName component, int flags, int userId) {
2270        if (!sUserManager.exists(userId)) return null;
2271        enforceCrossUserPermission(Binder.getCallingUid(), userId, false, false, "get receiver info");
2272        synchronized (mPackages) {
2273            PackageParser.Activity a = mReceivers.mActivities.get(component);
2274            if (DEBUG_PACKAGE_INFO) Log.v(
2275                TAG, "getReceiverInfo " + component + ": " + a);
2276            if (a != null && mSettings.isEnabledLPr(a.info, flags, userId)) {
2277                PackageSetting ps = mSettings.mPackages.get(component.getPackageName());
2278                if (ps == null) return null;
2279                return PackageParser.generateActivityInfo(a, flags, ps.readUserState(userId),
2280                        userId);
2281            }
2282        }
2283        return null;
2284    }
2285
2286    @Override
2287    public ServiceInfo getServiceInfo(ComponentName component, int flags, int userId) {
2288        if (!sUserManager.exists(userId)) return null;
2289        enforceCrossUserPermission(Binder.getCallingUid(), userId, false, false, "get service info");
2290        synchronized (mPackages) {
2291            PackageParser.Service s = mServices.mServices.get(component);
2292            if (DEBUG_PACKAGE_INFO) Log.v(
2293                TAG, "getServiceInfo " + component + ": " + s);
2294            if (s != null && mSettings.isEnabledLPr(s.info, flags, userId)) {
2295                PackageSetting ps = mSettings.mPackages.get(component.getPackageName());
2296                if (ps == null) return null;
2297                return PackageParser.generateServiceInfo(s, flags, ps.readUserState(userId),
2298                        userId);
2299            }
2300        }
2301        return null;
2302    }
2303
2304    @Override
2305    public ProviderInfo getProviderInfo(ComponentName component, int flags, int userId) {
2306        if (!sUserManager.exists(userId)) return null;
2307        enforceCrossUserPermission(Binder.getCallingUid(), userId, false, false, "get provider info");
2308        synchronized (mPackages) {
2309            PackageParser.Provider p = mProviders.mProviders.get(component);
2310            if (DEBUG_PACKAGE_INFO) Log.v(
2311                TAG, "getProviderInfo " + component + ": " + p);
2312            if (p != null && mSettings.isEnabledLPr(p.info, flags, userId)) {
2313                PackageSetting ps = mSettings.mPackages.get(component.getPackageName());
2314                if (ps == null) return null;
2315                return PackageParser.generateProviderInfo(p, flags, ps.readUserState(userId),
2316                        userId);
2317            }
2318        }
2319        return null;
2320    }
2321
2322    @Override
2323    public String[] getSystemSharedLibraryNames() {
2324        Set<String> libSet;
2325        synchronized (mPackages) {
2326            libSet = mSharedLibraries.keySet();
2327            int size = libSet.size();
2328            if (size > 0) {
2329                String[] libs = new String[size];
2330                libSet.toArray(libs);
2331                return libs;
2332            }
2333        }
2334        return null;
2335    }
2336
2337    @Override
2338    public FeatureInfo[] getSystemAvailableFeatures() {
2339        Collection<FeatureInfo> featSet;
2340        synchronized (mPackages) {
2341            featSet = mAvailableFeatures.values();
2342            int size = featSet.size();
2343            if (size > 0) {
2344                FeatureInfo[] features = new FeatureInfo[size+1];
2345                featSet.toArray(features);
2346                FeatureInfo fi = new FeatureInfo();
2347                fi.reqGlEsVersion = SystemProperties.getInt("ro.opengles.version",
2348                        FeatureInfo.GL_ES_VERSION_UNDEFINED);
2349                features[size] = fi;
2350                return features;
2351            }
2352        }
2353        return null;
2354    }
2355
2356    @Override
2357    public boolean hasSystemFeature(String name) {
2358        synchronized (mPackages) {
2359            return mAvailableFeatures.containsKey(name);
2360        }
2361    }
2362
2363    private void checkValidCaller(int uid, int userId) {
2364        if (UserHandle.getUserId(uid) == userId || uid == Process.SYSTEM_UID || uid == 0)
2365            return;
2366
2367        throw new SecurityException("Caller uid=" + uid
2368                + " is not privileged to communicate with user=" + userId);
2369    }
2370
2371    @Override
2372    public int checkPermission(String permName, String pkgName) {
2373        synchronized (mPackages) {
2374            PackageParser.Package p = mPackages.get(pkgName);
2375            if (p != null && p.mExtras != null) {
2376                PackageSetting ps = (PackageSetting)p.mExtras;
2377                if (ps.sharedUser != null) {
2378                    if (ps.sharedUser.grantedPermissions.contains(permName)) {
2379                        return PackageManager.PERMISSION_GRANTED;
2380                    }
2381                } else if (ps.grantedPermissions.contains(permName)) {
2382                    return PackageManager.PERMISSION_GRANTED;
2383                }
2384            }
2385        }
2386        return PackageManager.PERMISSION_DENIED;
2387    }
2388
2389    @Override
2390    public int checkUidPermission(String permName, int uid) {
2391        synchronized (mPackages) {
2392            Object obj = mSettings.getUserIdLPr(UserHandle.getAppId(uid));
2393            if (obj != null) {
2394                GrantedPermissions gp = (GrantedPermissions)obj;
2395                if (gp.grantedPermissions.contains(permName)) {
2396                    return PackageManager.PERMISSION_GRANTED;
2397                }
2398            } else {
2399                ArraySet<String> perms = mSystemPermissions.get(uid);
2400                if (perms != null && perms.contains(permName)) {
2401                    return PackageManager.PERMISSION_GRANTED;
2402                }
2403            }
2404        }
2405        return PackageManager.PERMISSION_DENIED;
2406    }
2407
2408    /**
2409     * Checks if the request is from the system or an app that has INTERACT_ACROSS_USERS
2410     * or INTERACT_ACROSS_USERS_FULL permissions, if the userid is not for the caller.
2411     * @param checkShell TODO(yamasani):
2412     * @param message the message to log on security exception
2413     */
2414    void enforceCrossUserPermission(int callingUid, int userId, boolean requireFullPermission,
2415            boolean checkShell, String message) {
2416        if (userId < 0) {
2417            throw new IllegalArgumentException("Invalid userId " + userId);
2418        }
2419        if (checkShell) {
2420            enforceShellRestriction(UserManager.DISALLOW_DEBUGGING_FEATURES, callingUid, userId);
2421        }
2422        if (userId == UserHandle.getUserId(callingUid)) return;
2423        if (callingUid != Process.SYSTEM_UID && callingUid != 0) {
2424            if (requireFullPermission) {
2425                mContext.enforceCallingOrSelfPermission(
2426                        android.Manifest.permission.INTERACT_ACROSS_USERS_FULL, message);
2427            } else {
2428                try {
2429                    mContext.enforceCallingOrSelfPermission(
2430                            android.Manifest.permission.INTERACT_ACROSS_USERS_FULL, message);
2431                } catch (SecurityException se) {
2432                    mContext.enforceCallingOrSelfPermission(
2433                            android.Manifest.permission.INTERACT_ACROSS_USERS, message);
2434                }
2435            }
2436        }
2437    }
2438
2439    void enforceShellRestriction(String restriction, int callingUid, int userHandle) {
2440        if (callingUid == Process.SHELL_UID) {
2441            if (userHandle >= 0
2442                    && sUserManager.hasUserRestriction(restriction, userHandle)) {
2443                throw new SecurityException("Shell does not have permission to access user "
2444                        + userHandle);
2445            } else if (userHandle < 0) {
2446                Slog.e(TAG, "Unable to check shell permission for user " + userHandle + "\n\t"
2447                        + Debug.getCallers(3));
2448            }
2449        }
2450    }
2451
2452    private BasePermission findPermissionTreeLP(String permName) {
2453        for(BasePermission bp : mSettings.mPermissionTrees.values()) {
2454            if (permName.startsWith(bp.name) &&
2455                    permName.length() > bp.name.length() &&
2456                    permName.charAt(bp.name.length()) == '.') {
2457                return bp;
2458            }
2459        }
2460        return null;
2461    }
2462
2463    private BasePermission checkPermissionTreeLP(String permName) {
2464        if (permName != null) {
2465            BasePermission bp = findPermissionTreeLP(permName);
2466            if (bp != null) {
2467                if (bp.uid == UserHandle.getAppId(Binder.getCallingUid())) {
2468                    return bp;
2469                }
2470                throw new SecurityException("Calling uid "
2471                        + Binder.getCallingUid()
2472                        + " is not allowed to add to permission tree "
2473                        + bp.name + " owned by uid " + bp.uid);
2474            }
2475        }
2476        throw new SecurityException("No permission tree found for " + permName);
2477    }
2478
2479    static boolean compareStrings(CharSequence s1, CharSequence s2) {
2480        if (s1 == null) {
2481            return s2 == null;
2482        }
2483        if (s2 == null) {
2484            return false;
2485        }
2486        if (s1.getClass() != s2.getClass()) {
2487            return false;
2488        }
2489        return s1.equals(s2);
2490    }
2491
2492    static boolean comparePermissionInfos(PermissionInfo pi1, PermissionInfo pi2) {
2493        if (pi1.icon != pi2.icon) return false;
2494        if (pi1.logo != pi2.logo) return false;
2495        if (pi1.protectionLevel != pi2.protectionLevel) return false;
2496        if (!compareStrings(pi1.name, pi2.name)) return false;
2497        if (!compareStrings(pi1.nonLocalizedLabel, pi2.nonLocalizedLabel)) return false;
2498        // We'll take care of setting this one.
2499        if (!compareStrings(pi1.packageName, pi2.packageName)) return false;
2500        // These are not currently stored in settings.
2501        //if (!compareStrings(pi1.group, pi2.group)) return false;
2502        //if (!compareStrings(pi1.nonLocalizedDescription, pi2.nonLocalizedDescription)) return false;
2503        //if (pi1.labelRes != pi2.labelRes) return false;
2504        //if (pi1.descriptionRes != pi2.descriptionRes) return false;
2505        return true;
2506    }
2507
2508    int permissionInfoFootprint(PermissionInfo info) {
2509        int size = info.name.length();
2510        if (info.nonLocalizedLabel != null) size += info.nonLocalizedLabel.length();
2511        if (info.nonLocalizedDescription != null) size += info.nonLocalizedDescription.length();
2512        return size;
2513    }
2514
2515    int calculateCurrentPermissionFootprintLocked(BasePermission tree) {
2516        int size = 0;
2517        for (BasePermission perm : mSettings.mPermissions.values()) {
2518            if (perm.uid == tree.uid) {
2519                size += perm.name.length() + permissionInfoFootprint(perm.perm.info);
2520            }
2521        }
2522        return size;
2523    }
2524
2525    void enforcePermissionCapLocked(PermissionInfo info, BasePermission tree) {
2526        // We calculate the max size of permissions defined by this uid and throw
2527        // if that plus the size of 'info' would exceed our stated maximum.
2528        if (tree.uid != Process.SYSTEM_UID) {
2529            final int curTreeSize = calculateCurrentPermissionFootprintLocked(tree);
2530            if (curTreeSize + permissionInfoFootprint(info) > MAX_PERMISSION_TREE_FOOTPRINT) {
2531                throw new SecurityException("Permission tree size cap exceeded");
2532            }
2533        }
2534    }
2535
2536    boolean addPermissionLocked(PermissionInfo info, boolean async) {
2537        if (info.labelRes == 0 && info.nonLocalizedLabel == null) {
2538            throw new SecurityException("Label must be specified in permission");
2539        }
2540        BasePermission tree = checkPermissionTreeLP(info.name);
2541        BasePermission bp = mSettings.mPermissions.get(info.name);
2542        boolean added = bp == null;
2543        boolean changed = true;
2544        int fixedLevel = PermissionInfo.fixProtectionLevel(info.protectionLevel);
2545        if (added) {
2546            enforcePermissionCapLocked(info, tree);
2547            bp = new BasePermission(info.name, tree.sourcePackage,
2548                    BasePermission.TYPE_DYNAMIC);
2549        } else if (bp.type != BasePermission.TYPE_DYNAMIC) {
2550            throw new SecurityException(
2551                    "Not allowed to modify non-dynamic permission "
2552                    + info.name);
2553        } else {
2554            if (bp.protectionLevel == fixedLevel
2555                    && bp.perm.owner.equals(tree.perm.owner)
2556                    && bp.uid == tree.uid
2557                    && comparePermissionInfos(bp.perm.info, info)) {
2558                changed = false;
2559            }
2560        }
2561        bp.protectionLevel = fixedLevel;
2562        info = new PermissionInfo(info);
2563        info.protectionLevel = fixedLevel;
2564        bp.perm = new PackageParser.Permission(tree.perm.owner, info);
2565        bp.perm.info.packageName = tree.perm.info.packageName;
2566        bp.uid = tree.uid;
2567        if (added) {
2568            mSettings.mPermissions.put(info.name, bp);
2569        }
2570        if (changed) {
2571            if (!async) {
2572                mSettings.writeLPr();
2573            } else {
2574                scheduleWriteSettingsLocked();
2575            }
2576        }
2577        return added;
2578    }
2579
2580    @Override
2581    public boolean addPermission(PermissionInfo info) {
2582        synchronized (mPackages) {
2583            return addPermissionLocked(info, false);
2584        }
2585    }
2586
2587    @Override
2588    public boolean addPermissionAsync(PermissionInfo info) {
2589        synchronized (mPackages) {
2590            return addPermissionLocked(info, true);
2591        }
2592    }
2593
2594    @Override
2595    public void removePermission(String name) {
2596        synchronized (mPackages) {
2597            checkPermissionTreeLP(name);
2598            BasePermission bp = mSettings.mPermissions.get(name);
2599            if (bp != null) {
2600                if (bp.type != BasePermission.TYPE_DYNAMIC) {
2601                    throw new SecurityException(
2602                            "Not allowed to modify non-dynamic permission "
2603                            + name);
2604                }
2605                mSettings.mPermissions.remove(name);
2606                mSettings.writeLPr();
2607            }
2608        }
2609    }
2610
2611    private static void checkGrantRevokePermissions(PackageParser.Package pkg, BasePermission bp) {
2612        int index = pkg.requestedPermissions.indexOf(bp.name);
2613        if (index == -1) {
2614            throw new SecurityException("Package " + pkg.packageName
2615                    + " has not requested permission " + bp.name);
2616        }
2617        boolean isNormal =
2618                ((bp.protectionLevel&PermissionInfo.PROTECTION_MASK_BASE)
2619                        == PermissionInfo.PROTECTION_NORMAL);
2620        boolean isDangerous =
2621                ((bp.protectionLevel&PermissionInfo.PROTECTION_MASK_BASE)
2622                        == PermissionInfo.PROTECTION_DANGEROUS);
2623        boolean isDevelopment =
2624                ((bp.protectionLevel&PermissionInfo.PROTECTION_FLAG_DEVELOPMENT) != 0);
2625
2626        if (!isNormal && !isDangerous && !isDevelopment) {
2627            throw new SecurityException("Permission " + bp.name
2628                    + " is not a changeable permission type");
2629        }
2630
2631        if (isNormal || isDangerous) {
2632            if (pkg.requestedPermissionsRequired.get(index)) {
2633                throw new SecurityException("Can't change " + bp.name
2634                        + ". It is required by the application");
2635            }
2636        }
2637    }
2638
2639    @Override
2640    public void grantPermission(String packageName, String permissionName) {
2641        mContext.enforceCallingOrSelfPermission(
2642                android.Manifest.permission.GRANT_REVOKE_PERMISSIONS, null);
2643        synchronized (mPackages) {
2644            final PackageParser.Package pkg = mPackages.get(packageName);
2645            if (pkg == null) {
2646                throw new IllegalArgumentException("Unknown package: " + packageName);
2647            }
2648            final BasePermission bp = mSettings.mPermissions.get(permissionName);
2649            if (bp == null) {
2650                throw new IllegalArgumentException("Unknown permission: " + permissionName);
2651            }
2652
2653            checkGrantRevokePermissions(pkg, bp);
2654
2655            final PackageSetting ps = (PackageSetting) pkg.mExtras;
2656            if (ps == null) {
2657                return;
2658            }
2659            final GrantedPermissions gp = (ps.sharedUser != null) ? ps.sharedUser : ps;
2660            if (gp.grantedPermissions.add(permissionName)) {
2661                if (ps.haveGids) {
2662                    gp.gids = appendInts(gp.gids, bp.gids);
2663                }
2664                mSettings.writeLPr();
2665            }
2666        }
2667    }
2668
2669    @Override
2670    public void revokePermission(String packageName, String permissionName) {
2671        int changedAppId = -1;
2672
2673        synchronized (mPackages) {
2674            final PackageParser.Package pkg = mPackages.get(packageName);
2675            if (pkg == null) {
2676                throw new IllegalArgumentException("Unknown package: " + packageName);
2677            }
2678            if (pkg.applicationInfo.uid != Binder.getCallingUid()) {
2679                mContext.enforceCallingOrSelfPermission(
2680                        android.Manifest.permission.GRANT_REVOKE_PERMISSIONS, null);
2681            }
2682            final BasePermission bp = mSettings.mPermissions.get(permissionName);
2683            if (bp == null) {
2684                throw new IllegalArgumentException("Unknown permission: " + permissionName);
2685            }
2686
2687            checkGrantRevokePermissions(pkg, bp);
2688
2689            final PackageSetting ps = (PackageSetting) pkg.mExtras;
2690            if (ps == null) {
2691                return;
2692            }
2693            final GrantedPermissions gp = (ps.sharedUser != null) ? ps.sharedUser : ps;
2694            if (gp.grantedPermissions.remove(permissionName)) {
2695                gp.grantedPermissions.remove(permissionName);
2696                if (ps.haveGids) {
2697                    gp.gids = removeInts(gp.gids, bp.gids);
2698                }
2699                mSettings.writeLPr();
2700                changedAppId = ps.appId;
2701            }
2702        }
2703
2704        if (changedAppId >= 0) {
2705            // We changed the perm on someone, kill its processes.
2706            IActivityManager am = ActivityManagerNative.getDefault();
2707            if (am != null) {
2708                final int callingUserId = UserHandle.getCallingUserId();
2709                final long ident = Binder.clearCallingIdentity();
2710                try {
2711                    //XXX we should only revoke for the calling user's app permissions,
2712                    // but for now we impact all users.
2713                    //am.killUid(UserHandle.getUid(callingUserId, changedAppId),
2714                    //        "revoke " + permissionName);
2715                    int[] users = sUserManager.getUserIds();
2716                    for (int user : users) {
2717                        am.killUid(UserHandle.getUid(user, changedAppId),
2718                                "revoke " + permissionName);
2719                    }
2720                } catch (RemoteException e) {
2721                } finally {
2722                    Binder.restoreCallingIdentity(ident);
2723                }
2724            }
2725        }
2726    }
2727
2728    @Override
2729    public boolean isProtectedBroadcast(String actionName) {
2730        synchronized (mPackages) {
2731            return mProtectedBroadcasts.contains(actionName);
2732        }
2733    }
2734
2735    @Override
2736    public int checkSignatures(String pkg1, String pkg2) {
2737        synchronized (mPackages) {
2738            final PackageParser.Package p1 = mPackages.get(pkg1);
2739            final PackageParser.Package p2 = mPackages.get(pkg2);
2740            if (p1 == null || p1.mExtras == null
2741                    || p2 == null || p2.mExtras == null) {
2742                return PackageManager.SIGNATURE_UNKNOWN_PACKAGE;
2743            }
2744            return compareSignatures(p1.mSignatures, p2.mSignatures);
2745        }
2746    }
2747
2748    @Override
2749    public int checkUidSignatures(int uid1, int uid2) {
2750        // Map to base uids.
2751        uid1 = UserHandle.getAppId(uid1);
2752        uid2 = UserHandle.getAppId(uid2);
2753        // reader
2754        synchronized (mPackages) {
2755            Signature[] s1;
2756            Signature[] s2;
2757            Object obj = mSettings.getUserIdLPr(uid1);
2758            if (obj != null) {
2759                if (obj instanceof SharedUserSetting) {
2760                    s1 = ((SharedUserSetting)obj).signatures.mSignatures;
2761                } else if (obj instanceof PackageSetting) {
2762                    s1 = ((PackageSetting)obj).signatures.mSignatures;
2763                } else {
2764                    return PackageManager.SIGNATURE_UNKNOWN_PACKAGE;
2765                }
2766            } else {
2767                return PackageManager.SIGNATURE_UNKNOWN_PACKAGE;
2768            }
2769            obj = mSettings.getUserIdLPr(uid2);
2770            if (obj != null) {
2771                if (obj instanceof SharedUserSetting) {
2772                    s2 = ((SharedUserSetting)obj).signatures.mSignatures;
2773                } else if (obj instanceof PackageSetting) {
2774                    s2 = ((PackageSetting)obj).signatures.mSignatures;
2775                } else {
2776                    return PackageManager.SIGNATURE_UNKNOWN_PACKAGE;
2777                }
2778            } else {
2779                return PackageManager.SIGNATURE_UNKNOWN_PACKAGE;
2780            }
2781            return compareSignatures(s1, s2);
2782        }
2783    }
2784
2785    /**
2786     * Compares two sets of signatures. Returns:
2787     * <br />
2788     * {@link PackageManager#SIGNATURE_NEITHER_SIGNED}: if both signature sets are null,
2789     * <br />
2790     * {@link PackageManager#SIGNATURE_FIRST_NOT_SIGNED}: if the first signature set is null,
2791     * <br />
2792     * {@link PackageManager#SIGNATURE_SECOND_NOT_SIGNED}: if the second signature set is null,
2793     * <br />
2794     * {@link PackageManager#SIGNATURE_MATCH}: if the two signature sets are identical,
2795     * <br />
2796     * {@link PackageManager#SIGNATURE_NO_MATCH}: if the two signature sets differ.
2797     */
2798    static int compareSignatures(Signature[] s1, Signature[] s2) {
2799        if (s1 == null) {
2800            return s2 == null
2801                    ? PackageManager.SIGNATURE_NEITHER_SIGNED
2802                    : PackageManager.SIGNATURE_FIRST_NOT_SIGNED;
2803        }
2804
2805        if (s2 == null) {
2806            return PackageManager.SIGNATURE_SECOND_NOT_SIGNED;
2807        }
2808
2809        if (s1.length != s2.length) {
2810            return PackageManager.SIGNATURE_NO_MATCH;
2811        }
2812
2813        // Since both signature sets are of size 1, we can compare without HashSets.
2814        if (s1.length == 1) {
2815            return s1[0].equals(s2[0]) ?
2816                    PackageManager.SIGNATURE_MATCH :
2817                    PackageManager.SIGNATURE_NO_MATCH;
2818        }
2819
2820        ArraySet<Signature> set1 = new ArraySet<Signature>();
2821        for (Signature sig : s1) {
2822            set1.add(sig);
2823        }
2824        ArraySet<Signature> set2 = new ArraySet<Signature>();
2825        for (Signature sig : s2) {
2826            set2.add(sig);
2827        }
2828        // Make sure s2 contains all signatures in s1.
2829        if (set1.equals(set2)) {
2830            return PackageManager.SIGNATURE_MATCH;
2831        }
2832        return PackageManager.SIGNATURE_NO_MATCH;
2833    }
2834
2835    /**
2836     * If the database version for this type of package (internal storage or
2837     * external storage) is less than the version where package signatures
2838     * were updated, return true.
2839     */
2840    private boolean isCompatSignatureUpdateNeeded(PackageParser.Package scannedPkg) {
2841        return (isExternal(scannedPkg) && mSettings.isExternalDatabaseVersionOlderThan(
2842                DatabaseVersion.SIGNATURE_END_ENTITY))
2843                || (!isExternal(scannedPkg) && mSettings.isInternalDatabaseVersionOlderThan(
2844                        DatabaseVersion.SIGNATURE_END_ENTITY));
2845    }
2846
2847    /**
2848     * Used for backward compatibility to make sure any packages with
2849     * certificate chains get upgraded to the new style. {@code existingSigs}
2850     * will be in the old format (since they were stored on disk from before the
2851     * system upgrade) and {@code scannedSigs} will be in the newer format.
2852     */
2853    private int compareSignaturesCompat(PackageSignatures existingSigs,
2854            PackageParser.Package scannedPkg) {
2855        if (!isCompatSignatureUpdateNeeded(scannedPkg)) {
2856            return PackageManager.SIGNATURE_NO_MATCH;
2857        }
2858
2859        ArraySet<Signature> existingSet = new ArraySet<Signature>();
2860        for (Signature sig : existingSigs.mSignatures) {
2861            existingSet.add(sig);
2862        }
2863        ArraySet<Signature> scannedCompatSet = new ArraySet<Signature>();
2864        for (Signature sig : scannedPkg.mSignatures) {
2865            try {
2866                Signature[] chainSignatures = sig.getChainSignatures();
2867                for (Signature chainSig : chainSignatures) {
2868                    scannedCompatSet.add(chainSig);
2869                }
2870            } catch (CertificateEncodingException e) {
2871                scannedCompatSet.add(sig);
2872            }
2873        }
2874        /*
2875         * Make sure the expanded scanned set contains all signatures in the
2876         * existing one.
2877         */
2878        if (scannedCompatSet.equals(existingSet)) {
2879            // Migrate the old signatures to the new scheme.
2880            existingSigs.assignSignatures(scannedPkg.mSignatures);
2881            // The new KeySets will be re-added later in the scanning process.
2882            synchronized (mPackages) {
2883                mSettings.mKeySetManagerService.removeAppKeySetDataLPw(scannedPkg.packageName);
2884            }
2885            return PackageManager.SIGNATURE_MATCH;
2886        }
2887        return PackageManager.SIGNATURE_NO_MATCH;
2888    }
2889
2890    private boolean isRecoverSignatureUpdateNeeded(PackageParser.Package scannedPkg) {
2891        if (isExternal(scannedPkg)) {
2892            return mSettings.isExternalDatabaseVersionOlderThan(
2893                    DatabaseVersion.SIGNATURE_MALFORMED_RECOVER);
2894        } else {
2895            return mSettings.isInternalDatabaseVersionOlderThan(
2896                    DatabaseVersion.SIGNATURE_MALFORMED_RECOVER);
2897        }
2898    }
2899
2900    private int compareSignaturesRecover(PackageSignatures existingSigs,
2901            PackageParser.Package scannedPkg) {
2902        if (!isRecoverSignatureUpdateNeeded(scannedPkg)) {
2903            return PackageManager.SIGNATURE_NO_MATCH;
2904        }
2905
2906        String msg = null;
2907        try {
2908            if (Signature.areEffectiveMatch(existingSigs.mSignatures, scannedPkg.mSignatures)) {
2909                logCriticalInfo(Log.INFO, "Recovered effectively matching certificates for "
2910                        + scannedPkg.packageName);
2911                return PackageManager.SIGNATURE_MATCH;
2912            }
2913        } catch (CertificateException e) {
2914            msg = e.getMessage();
2915        }
2916
2917        logCriticalInfo(Log.INFO,
2918                "Failed to recover certificates for " + scannedPkg.packageName + ": " + msg);
2919        return PackageManager.SIGNATURE_NO_MATCH;
2920    }
2921
2922    @Override
2923    public String[] getPackagesForUid(int uid) {
2924        uid = UserHandle.getAppId(uid);
2925        // reader
2926        synchronized (mPackages) {
2927            Object obj = mSettings.getUserIdLPr(uid);
2928            if (obj instanceof SharedUserSetting) {
2929                final SharedUserSetting sus = (SharedUserSetting) obj;
2930                final int N = sus.packages.size();
2931                final String[] res = new String[N];
2932                final Iterator<PackageSetting> it = sus.packages.iterator();
2933                int i = 0;
2934                while (it.hasNext()) {
2935                    res[i++] = it.next().name;
2936                }
2937                return res;
2938            } else if (obj instanceof PackageSetting) {
2939                final PackageSetting ps = (PackageSetting) obj;
2940                return new String[] { ps.name };
2941            }
2942        }
2943        return null;
2944    }
2945
2946    @Override
2947    public String getNameForUid(int uid) {
2948        // reader
2949        synchronized (mPackages) {
2950            Object obj = mSettings.getUserIdLPr(UserHandle.getAppId(uid));
2951            if (obj instanceof SharedUserSetting) {
2952                final SharedUserSetting sus = (SharedUserSetting) obj;
2953                return sus.name + ":" + sus.userId;
2954            } else if (obj instanceof PackageSetting) {
2955                final PackageSetting ps = (PackageSetting) obj;
2956                return ps.name;
2957            }
2958        }
2959        return null;
2960    }
2961
2962    @Override
2963    public int getUidForSharedUser(String sharedUserName) {
2964        if(sharedUserName == null) {
2965            return -1;
2966        }
2967        // reader
2968        synchronized (mPackages) {
2969            final SharedUserSetting suid = mSettings.getSharedUserLPw(sharedUserName, 0, false);
2970            if (suid == null) {
2971                return -1;
2972            }
2973            return suid.userId;
2974        }
2975    }
2976
2977    @Override
2978    public int getFlagsForUid(int uid) {
2979        synchronized (mPackages) {
2980            Object obj = mSettings.getUserIdLPr(UserHandle.getAppId(uid));
2981            if (obj instanceof SharedUserSetting) {
2982                final SharedUserSetting sus = (SharedUserSetting) obj;
2983                return sus.pkgFlags;
2984            } else if (obj instanceof PackageSetting) {
2985                final PackageSetting ps = (PackageSetting) obj;
2986                return ps.pkgFlags;
2987            }
2988        }
2989        return 0;
2990    }
2991
2992    @Override
2993    public boolean isUidPrivileged(int uid) {
2994        uid = UserHandle.getAppId(uid);
2995        // reader
2996        synchronized (mPackages) {
2997            Object obj = mSettings.getUserIdLPr(uid);
2998            if (obj instanceof SharedUserSetting) {
2999                final SharedUserSetting sus = (SharedUserSetting) obj;
3000                final Iterator<PackageSetting> it = sus.packages.iterator();
3001                while (it.hasNext()) {
3002                    if (it.next().isPrivileged()) {
3003                        return true;
3004                    }
3005                }
3006            } else if (obj instanceof PackageSetting) {
3007                final PackageSetting ps = (PackageSetting) obj;
3008                return ps.isPrivileged();
3009            }
3010        }
3011        return false;
3012    }
3013
3014    @Override
3015    public String[] getAppOpPermissionPackages(String permissionName) {
3016        synchronized (mPackages) {
3017            ArraySet<String> pkgs = mAppOpPermissionPackages.get(permissionName);
3018            if (pkgs == null) {
3019                return null;
3020            }
3021            return pkgs.toArray(new String[pkgs.size()]);
3022        }
3023    }
3024
3025    @Override
3026    public ResolveInfo resolveIntent(Intent intent, String resolvedType,
3027            int flags, int userId) {
3028        if (!sUserManager.exists(userId)) return null;
3029        enforceCrossUserPermission(Binder.getCallingUid(), userId, false, false, "resolve intent");
3030        List<ResolveInfo> query = queryIntentActivities(intent, resolvedType, flags, userId);
3031        return chooseBestActivity(intent, resolvedType, flags, query, userId);
3032    }
3033
3034    @Override
3035    public void setLastChosenActivity(Intent intent, String resolvedType, int flags,
3036            IntentFilter filter, int match, ComponentName activity) {
3037        final int userId = UserHandle.getCallingUserId();
3038        if (DEBUG_PREFERRED) {
3039            Log.v(TAG, "setLastChosenActivity intent=" + intent
3040                + " resolvedType=" + resolvedType
3041                + " flags=" + flags
3042                + " filter=" + filter
3043                + " match=" + match
3044                + " activity=" + activity);
3045            filter.dump(new PrintStreamPrinter(System.out), "    ");
3046        }
3047        intent.setComponent(null);
3048        List<ResolveInfo> query = queryIntentActivities(intent, resolvedType, flags, userId);
3049        // Find any earlier preferred or last chosen entries and nuke them
3050        findPreferredActivity(intent, resolvedType,
3051                flags, query, 0, false, true, false, userId);
3052        // Add the new activity as the last chosen for this filter
3053        addPreferredActivityInternal(filter, match, null, activity, false, userId,
3054                "Setting last chosen");
3055    }
3056
3057    @Override
3058    public ResolveInfo getLastChosenActivity(Intent intent, String resolvedType, int flags) {
3059        final int userId = UserHandle.getCallingUserId();
3060        if (DEBUG_PREFERRED) Log.v(TAG, "Querying last chosen activity for " + intent);
3061        List<ResolveInfo> query = queryIntentActivities(intent, resolvedType, flags, userId);
3062        return findPreferredActivity(intent, resolvedType, flags, query, 0,
3063                false, false, false, userId);
3064    }
3065
3066    private ResolveInfo chooseBestActivity(Intent intent, String resolvedType,
3067            int flags, List<ResolveInfo> query, int userId) {
3068        if (query != null) {
3069            final int N = query.size();
3070            if (N == 1) {
3071                return query.get(0);
3072            } else if (N > 1) {
3073                final boolean debug = ((intent.getFlags() & Intent.FLAG_DEBUG_LOG_RESOLUTION) != 0);
3074                // If there is more than one activity with the same priority,
3075                // then let the user decide between them.
3076                ResolveInfo r0 = query.get(0);
3077                ResolveInfo r1 = query.get(1);
3078                if (DEBUG_INTENT_MATCHING || debug) {
3079                    Slog.v(TAG, r0.activityInfo.name + "=" + r0.priority + " vs "
3080                            + r1.activityInfo.name + "=" + r1.priority);
3081                }
3082                // If the first activity has a higher priority, or a different
3083                // default, then it is always desireable to pick it.
3084                if (r0.priority != r1.priority
3085                        || r0.preferredOrder != r1.preferredOrder
3086                        || r0.isDefault != r1.isDefault) {
3087                    return query.get(0);
3088                }
3089                // If we have saved a preference for a preferred activity for
3090                // this Intent, use that.
3091                ResolveInfo ri = findPreferredActivity(intent, resolvedType,
3092                        flags, query, r0.priority, true, false, debug, userId);
3093                if (ri != null) {
3094                    return ri;
3095                }
3096                if (userId != 0) {
3097                    ri = new ResolveInfo(mResolveInfo);
3098                    ri.activityInfo = new ActivityInfo(ri.activityInfo);
3099                    ri.activityInfo.applicationInfo = new ApplicationInfo(
3100                            ri.activityInfo.applicationInfo);
3101                    ri.activityInfo.applicationInfo.uid = UserHandle.getUid(userId,
3102                            UserHandle.getAppId(ri.activityInfo.applicationInfo.uid));
3103                    return ri;
3104                }
3105                return mResolveInfo;
3106            }
3107        }
3108        return null;
3109    }
3110
3111    private ResolveInfo findPersistentPreferredActivityLP(Intent intent, String resolvedType,
3112            int flags, List<ResolveInfo> query, boolean debug, int userId) {
3113        final int N = query.size();
3114        PersistentPreferredIntentResolver ppir = mSettings.mPersistentPreferredActivities
3115                .get(userId);
3116        // Get the list of persistent preferred activities that handle the intent
3117        if (DEBUG_PREFERRED || debug) Slog.v(TAG, "Looking for presistent preferred activities...");
3118        List<PersistentPreferredActivity> pprefs = ppir != null
3119                ? ppir.queryIntent(intent, resolvedType,
3120                        (flags & PackageManager.MATCH_DEFAULT_ONLY) != 0, userId)
3121                : null;
3122        if (pprefs != null && pprefs.size() > 0) {
3123            final int M = pprefs.size();
3124            for (int i=0; i<M; i++) {
3125                final PersistentPreferredActivity ppa = pprefs.get(i);
3126                if (DEBUG_PREFERRED || debug) {
3127                    Slog.v(TAG, "Checking PersistentPreferredActivity ds="
3128                            + (ppa.countDataSchemes() > 0 ? ppa.getDataScheme(0) : "<none>")
3129                            + "\n  component=" + ppa.mComponent);
3130                    ppa.dump(new LogPrinter(Log.VERBOSE, TAG, Log.LOG_ID_SYSTEM), "  ");
3131                }
3132                final ActivityInfo ai = getActivityInfo(ppa.mComponent,
3133                        flags | PackageManager.GET_DISABLED_COMPONENTS, userId);
3134                if (DEBUG_PREFERRED || debug) {
3135                    Slog.v(TAG, "Found persistent preferred activity:");
3136                    if (ai != null) {
3137                        ai.dump(new LogPrinter(Log.VERBOSE, TAG, Log.LOG_ID_SYSTEM), "  ");
3138                    } else {
3139                        Slog.v(TAG, "  null");
3140                    }
3141                }
3142                if (ai == null) {
3143                    // This previously registered persistent preferred activity
3144                    // component is no longer known. Ignore it and do NOT remove it.
3145                    continue;
3146                }
3147                for (int j=0; j<N; j++) {
3148                    final ResolveInfo ri = query.get(j);
3149                    if (!ri.activityInfo.applicationInfo.packageName
3150                            .equals(ai.applicationInfo.packageName)) {
3151                        continue;
3152                    }
3153                    if (!ri.activityInfo.name.equals(ai.name)) {
3154                        continue;
3155                    }
3156                    //  Found a persistent preference that can handle the intent.
3157                    if (DEBUG_PREFERRED || debug) {
3158                        Slog.v(TAG, "Returning persistent preferred activity: " +
3159                                ri.activityInfo.packageName + "/" + ri.activityInfo.name);
3160                    }
3161                    return ri;
3162                }
3163            }
3164        }
3165        return null;
3166    }
3167
3168    ResolveInfo findPreferredActivity(Intent intent, String resolvedType, int flags,
3169            List<ResolveInfo> query, int priority, boolean always,
3170            boolean removeMatches, boolean debug, int userId) {
3171        if (!sUserManager.exists(userId)) return null;
3172        // writer
3173        synchronized (mPackages) {
3174            if (intent.getSelector() != null) {
3175                intent = intent.getSelector();
3176            }
3177            if (DEBUG_PREFERRED) intent.addFlags(Intent.FLAG_DEBUG_LOG_RESOLUTION);
3178
3179            // Try to find a matching persistent preferred activity.
3180            ResolveInfo pri = findPersistentPreferredActivityLP(intent, resolvedType, flags, query,
3181                    debug, userId);
3182
3183            // If a persistent preferred activity matched, use it.
3184            if (pri != null) {
3185                return pri;
3186            }
3187
3188            PreferredIntentResolver pir = mSettings.mPreferredActivities.get(userId);
3189            // Get the list of preferred activities that handle the intent
3190            if (DEBUG_PREFERRED || debug) Slog.v(TAG, "Looking for preferred activities...");
3191            List<PreferredActivity> prefs = pir != null
3192                    ? pir.queryIntent(intent, resolvedType,
3193                            (flags & PackageManager.MATCH_DEFAULT_ONLY) != 0, userId)
3194                    : null;
3195            if (prefs != null && prefs.size() > 0) {
3196                boolean changed = false;
3197                try {
3198                    // First figure out how good the original match set is.
3199                    // We will only allow preferred activities that came
3200                    // from the same match quality.
3201                    int match = 0;
3202
3203                    if (DEBUG_PREFERRED || debug) Slog.v(TAG, "Figuring out best match...");
3204
3205                    final int N = query.size();
3206                    for (int j=0; j<N; j++) {
3207                        final ResolveInfo ri = query.get(j);
3208                        if (DEBUG_PREFERRED || debug) Slog.v(TAG, "Match for " + ri.activityInfo
3209                                + ": 0x" + Integer.toHexString(match));
3210                        if (ri.match > match) {
3211                            match = ri.match;
3212                        }
3213                    }
3214
3215                    if (DEBUG_PREFERRED || debug) Slog.v(TAG, "Best match: 0x"
3216                            + Integer.toHexString(match));
3217
3218                    match &= IntentFilter.MATCH_CATEGORY_MASK;
3219                    final int M = prefs.size();
3220                    for (int i=0; i<M; i++) {
3221                        final PreferredActivity pa = prefs.get(i);
3222                        if (DEBUG_PREFERRED || debug) {
3223                            Slog.v(TAG, "Checking PreferredActivity ds="
3224                                    + (pa.countDataSchemes() > 0 ? pa.getDataScheme(0) : "<none>")
3225                                    + "\n  component=" + pa.mPref.mComponent);
3226                            pa.dump(new LogPrinter(Log.VERBOSE, TAG, Log.LOG_ID_SYSTEM), "  ");
3227                        }
3228                        if (pa.mPref.mMatch != match) {
3229                            if (DEBUG_PREFERRED || debug) Slog.v(TAG, "Skipping bad match "
3230                                    + Integer.toHexString(pa.mPref.mMatch));
3231                            continue;
3232                        }
3233                        // If it's not an "always" type preferred activity and that's what we're
3234                        // looking for, skip it.
3235                        if (always && !pa.mPref.mAlways) {
3236                            if (DEBUG_PREFERRED || debug) Slog.v(TAG, "Skipping mAlways=false entry");
3237                            continue;
3238                        }
3239                        final ActivityInfo ai = getActivityInfo(pa.mPref.mComponent,
3240                                flags | PackageManager.GET_DISABLED_COMPONENTS, userId);
3241                        if (DEBUG_PREFERRED || debug) {
3242                            Slog.v(TAG, "Found preferred activity:");
3243                            if (ai != null) {
3244                                ai.dump(new LogPrinter(Log.VERBOSE, TAG, Log.LOG_ID_SYSTEM), "  ");
3245                            } else {
3246                                Slog.v(TAG, "  null");
3247                            }
3248                        }
3249                        if (ai == null) {
3250                            // This previously registered preferred activity
3251                            // component is no longer known.  Most likely an update
3252                            // to the app was installed and in the new version this
3253                            // component no longer exists.  Clean it up by removing
3254                            // it from the preferred activities list, and skip it.
3255                            Slog.w(TAG, "Removing dangling preferred activity: "
3256                                    + pa.mPref.mComponent);
3257                            pir.removeFilter(pa);
3258                            changed = true;
3259                            continue;
3260                        }
3261                        for (int j=0; j<N; j++) {
3262                            final ResolveInfo ri = query.get(j);
3263                            if (!ri.activityInfo.applicationInfo.packageName
3264                                    .equals(ai.applicationInfo.packageName)) {
3265                                continue;
3266                            }
3267                            if (!ri.activityInfo.name.equals(ai.name)) {
3268                                continue;
3269                            }
3270
3271                            if (removeMatches) {
3272                                pir.removeFilter(pa);
3273                                changed = true;
3274                                if (DEBUG_PREFERRED) {
3275                                    Slog.v(TAG, "Removing match " + pa.mPref.mComponent);
3276                                }
3277                                break;
3278                            }
3279
3280                            // Okay we found a previously set preferred or last chosen app.
3281                            // If the result set is different from when this
3282                            // was created, we need to clear it and re-ask the
3283                            // user their preference, if we're looking for an "always" type entry.
3284                            if (always && !pa.mPref.sameSet(query, priority)) {
3285                                Slog.i(TAG, "Result set changed, dropping preferred activity for "
3286                                        + intent + " type " + resolvedType);
3287                                if (DEBUG_PREFERRED) {
3288                                    Slog.v(TAG, "Removing preferred activity since set changed "
3289                                            + pa.mPref.mComponent);
3290                                }
3291                                pir.removeFilter(pa);
3292                                // Re-add the filter as a "last chosen" entry (!always)
3293                                PreferredActivity lastChosen = new PreferredActivity(
3294                                        pa, pa.mPref.mMatch, null, pa.mPref.mComponent, false);
3295                                pir.addFilter(lastChosen);
3296                                changed = true;
3297                                return null;
3298                            }
3299
3300                            // Yay! Either the set matched or we're looking for the last chosen
3301                            if (DEBUG_PREFERRED || debug) Slog.v(TAG, "Returning preferred activity: "
3302                                    + ri.activityInfo.packageName + "/" + ri.activityInfo.name);
3303                            return ri;
3304                        }
3305                    }
3306                } finally {
3307                    if (changed) {
3308                        if (DEBUG_PREFERRED) {
3309                            Slog.v(TAG, "Preferred activity bookkeeping changed; writing restrictions");
3310                        }
3311                        scheduleWritePackageRestrictionsLocked(userId);
3312                    }
3313                }
3314            }
3315        }
3316        if (DEBUG_PREFERRED || debug) Slog.v(TAG, "No preferred activity to return");
3317        return null;
3318    }
3319
3320    /*
3321     * Returns if intent can be forwarded from the sourceUserId to the targetUserId
3322     */
3323    @Override
3324    public boolean canForwardTo(Intent intent, String resolvedType, int sourceUserId,
3325            int targetUserId) {
3326        mContext.enforceCallingOrSelfPermission(
3327                android.Manifest.permission.INTERACT_ACROSS_USERS_FULL, null);
3328        List<CrossProfileIntentFilter> matches =
3329                getMatchingCrossProfileIntentFilters(intent, resolvedType, sourceUserId);
3330        if (matches != null) {
3331            int size = matches.size();
3332            for (int i = 0; i < size; i++) {
3333                if (matches.get(i).getTargetUserId() == targetUserId) return true;
3334            }
3335        }
3336        return false;
3337    }
3338
3339    private List<CrossProfileIntentFilter> getMatchingCrossProfileIntentFilters(Intent intent,
3340            String resolvedType, int userId) {
3341        CrossProfileIntentResolver resolver = mSettings.mCrossProfileIntentResolvers.get(userId);
3342        if (resolver != null) {
3343            return resolver.queryIntent(intent, resolvedType, false, userId);
3344        }
3345        return null;
3346    }
3347
3348    @Override
3349    public List<ResolveInfo> queryIntentActivities(Intent intent,
3350            String resolvedType, int flags, int userId) {
3351        if (!sUserManager.exists(userId)) return Collections.emptyList();
3352        enforceCrossUserPermission(Binder.getCallingUid(), userId, false, false, "query intent activities");
3353        ComponentName comp = intent.getComponent();
3354        if (comp == null) {
3355            if (intent.getSelector() != null) {
3356                intent = intent.getSelector();
3357                comp = intent.getComponent();
3358            }
3359        }
3360
3361        if (comp != null) {
3362            final List<ResolveInfo> list = new ArrayList<ResolveInfo>(1);
3363            final ActivityInfo ai = getActivityInfo(comp, flags, userId);
3364            if (ai != null) {
3365                final ResolveInfo ri = new ResolveInfo();
3366                ri.activityInfo = ai;
3367                list.add(ri);
3368            }
3369            return list;
3370        }
3371
3372        // reader
3373        synchronized (mPackages) {
3374            final String pkgName = intent.getPackage();
3375            if (pkgName == null) {
3376                List<CrossProfileIntentFilter> matchingFilters =
3377                        getMatchingCrossProfileIntentFilters(intent, resolvedType, userId);
3378                // Check for results that need to skip the current profile.
3379                ResolveInfo resolveInfo  = querySkipCurrentProfileIntents(matchingFilters, intent,
3380                        resolvedType, flags, userId);
3381                if (resolveInfo != null) {
3382                    List<ResolveInfo> result = new ArrayList<ResolveInfo>(1);
3383                    result.add(resolveInfo);
3384                    return filterIfNotPrimaryUser(result, userId);
3385                }
3386                // Check for cross profile results.
3387                resolveInfo = queryCrossProfileIntents(
3388                        matchingFilters, intent, resolvedType, flags, userId);
3389
3390                // Check for results in the current profile.
3391                List<ResolveInfo> result = mActivities.queryIntent(
3392                        intent, resolvedType, flags, userId);
3393                if (resolveInfo != null) {
3394                    result.add(resolveInfo);
3395                    Collections.sort(result, mResolvePrioritySorter);
3396                }
3397                return filterIfNotPrimaryUser(result, userId);
3398            }
3399            final PackageParser.Package pkg = mPackages.get(pkgName);
3400            if (pkg != null) {
3401                return filterIfNotPrimaryUser(
3402                        mActivities.queryIntentForPackage(
3403                                intent, resolvedType, flags, pkg.activities, userId),
3404                        userId);
3405            }
3406            return new ArrayList<ResolveInfo>();
3407        }
3408    }
3409
3410    /**
3411     * Filter out activities with primaryUserOnly flag set, when current user is not the owner.
3412     *
3413     * @return filtered list
3414     */
3415    private List<ResolveInfo> filterIfNotPrimaryUser(List<ResolveInfo> resolveInfos, int userId) {
3416        if (userId == UserHandle.USER_OWNER) {
3417            return resolveInfos;
3418        }
3419        for (int i = resolveInfos.size() - 1; i >= 0; i--) {
3420            ResolveInfo info = resolveInfos.get(i);
3421            if ((info.activityInfo.flags & ActivityInfo.FLAG_PRIMARY_USER_ONLY) != 0) {
3422                resolveInfos.remove(i);
3423            }
3424        }
3425        return resolveInfos;
3426    }
3427
3428
3429    private ResolveInfo querySkipCurrentProfileIntents(
3430            List<CrossProfileIntentFilter> matchingFilters, Intent intent, String resolvedType,
3431            int flags, int sourceUserId) {
3432        if (matchingFilters != null) {
3433            int size = matchingFilters.size();
3434            for (int i = 0; i < size; i ++) {
3435                CrossProfileIntentFilter filter = matchingFilters.get(i);
3436                if ((filter.getFlags() & PackageManager.SKIP_CURRENT_PROFILE) != 0) {
3437                    // Checking if there are activities in the target user that can handle the
3438                    // intent.
3439                    ResolveInfo resolveInfo = checkTargetCanHandle(filter, intent, resolvedType,
3440                            flags, sourceUserId);
3441                    if (resolveInfo != null) {
3442                        return resolveInfo;
3443                    }
3444                }
3445            }
3446        }
3447        return null;
3448    }
3449
3450    // Return matching ResolveInfo if any for skip current profile intent filters.
3451    private ResolveInfo queryCrossProfileIntents(
3452            List<CrossProfileIntentFilter> matchingFilters, Intent intent, String resolvedType,
3453            int flags, int sourceUserId) {
3454        if (matchingFilters != null) {
3455            // Two {@link CrossProfileIntentFilter}s can have the same targetUserId and
3456            // match the same intent. For performance reasons, it is better not to
3457            // run queryIntent twice for the same userId
3458            SparseBooleanArray alreadyTriedUserIds = new SparseBooleanArray();
3459            int size = matchingFilters.size();
3460            for (int i = 0; i < size; i++) {
3461                CrossProfileIntentFilter filter = matchingFilters.get(i);
3462                int targetUserId = filter.getTargetUserId();
3463                if ((filter.getFlags() & PackageManager.SKIP_CURRENT_PROFILE) == 0
3464                        && !alreadyTriedUserIds.get(targetUserId)) {
3465                    // Checking if there are activities in the target user that can handle the
3466                    // intent.
3467                    ResolveInfo resolveInfo = checkTargetCanHandle(filter, intent, resolvedType,
3468                            flags, sourceUserId);
3469                    if (resolveInfo != null) return resolveInfo;
3470                    alreadyTriedUserIds.put(targetUserId, true);
3471                }
3472            }
3473        }
3474        return null;
3475    }
3476
3477    private ResolveInfo checkTargetCanHandle(CrossProfileIntentFilter filter, Intent intent,
3478            String resolvedType, int flags, int sourceUserId) {
3479        List<ResolveInfo> resultTargetUser = mActivities.queryIntent(intent,
3480                resolvedType, flags, filter.getTargetUserId());
3481        if (resultTargetUser != null && !resultTargetUser.isEmpty()) {
3482            return createForwardingResolveInfo(filter, sourceUserId, filter.getTargetUserId());
3483        }
3484        return null;
3485    }
3486
3487    private ResolveInfo createForwardingResolveInfo(IntentFilter filter,
3488            int sourceUserId, int targetUserId) {
3489        ResolveInfo forwardingResolveInfo = new ResolveInfo();
3490        String className;
3491        if (targetUserId == UserHandle.USER_OWNER) {
3492            className = FORWARD_INTENT_TO_USER_OWNER;
3493        } else {
3494            className = FORWARD_INTENT_TO_MANAGED_PROFILE;
3495        }
3496        ComponentName forwardingActivityComponentName = new ComponentName(
3497                mAndroidApplication.packageName, className);
3498        ActivityInfo forwardingActivityInfo = getActivityInfo(forwardingActivityComponentName, 0,
3499                sourceUserId);
3500        if (targetUserId == UserHandle.USER_OWNER) {
3501            forwardingActivityInfo.showUserIcon = UserHandle.USER_OWNER;
3502            forwardingResolveInfo.noResourceId = true;
3503        }
3504        forwardingResolveInfo.activityInfo = forwardingActivityInfo;
3505        forwardingResolveInfo.priority = 0;
3506        forwardingResolveInfo.preferredOrder = 0;
3507        forwardingResolveInfo.match = 0;
3508        forwardingResolveInfo.isDefault = true;
3509        forwardingResolveInfo.filter = filter;
3510        forwardingResolveInfo.targetUserId = targetUserId;
3511        return forwardingResolveInfo;
3512    }
3513
3514    @Override
3515    public List<ResolveInfo> queryIntentActivityOptions(ComponentName caller,
3516            Intent[] specifics, String[] specificTypes, Intent intent,
3517            String resolvedType, int flags, int userId) {
3518        if (!sUserManager.exists(userId)) return Collections.emptyList();
3519        enforceCrossUserPermission(Binder.getCallingUid(), userId, false,
3520                false, "query intent activity options");
3521        final String resultsAction = intent.getAction();
3522
3523        List<ResolveInfo> results = queryIntentActivities(intent, resolvedType, flags
3524                | PackageManager.GET_RESOLVED_FILTER, userId);
3525
3526        if (DEBUG_INTENT_MATCHING) {
3527            Log.v(TAG, "Query " + intent + ": " + results);
3528        }
3529
3530        int specificsPos = 0;
3531        int N;
3532
3533        // todo: note that the algorithm used here is O(N^2).  This
3534        // isn't a problem in our current environment, but if we start running
3535        // into situations where we have more than 5 or 10 matches then this
3536        // should probably be changed to something smarter...
3537
3538        // First we go through and resolve each of the specific items
3539        // that were supplied, taking care of removing any corresponding
3540        // duplicate items in the generic resolve list.
3541        if (specifics != null) {
3542            for (int i=0; i<specifics.length; i++) {
3543                final Intent sintent = specifics[i];
3544                if (sintent == null) {
3545                    continue;
3546                }
3547
3548                if (DEBUG_INTENT_MATCHING) {
3549                    Log.v(TAG, "Specific #" + i + ": " + sintent);
3550                }
3551
3552                String action = sintent.getAction();
3553                if (resultsAction != null && resultsAction.equals(action)) {
3554                    // If this action was explicitly requested, then don't
3555                    // remove things that have it.
3556                    action = null;
3557                }
3558
3559                ResolveInfo ri = null;
3560                ActivityInfo ai = null;
3561
3562                ComponentName comp = sintent.getComponent();
3563                if (comp == null) {
3564                    ri = resolveIntent(
3565                        sintent,
3566                        specificTypes != null ? specificTypes[i] : null,
3567                            flags, userId);
3568                    if (ri == null) {
3569                        continue;
3570                    }
3571                    if (ri == mResolveInfo) {
3572                        // ACK!  Must do something better with this.
3573                    }
3574                    ai = ri.activityInfo;
3575                    comp = new ComponentName(ai.applicationInfo.packageName,
3576                            ai.name);
3577                } else {
3578                    ai = getActivityInfo(comp, flags, userId);
3579                    if (ai == null) {
3580                        continue;
3581                    }
3582                }
3583
3584                // Look for any generic query activities that are duplicates
3585                // of this specific one, and remove them from the results.
3586                if (DEBUG_INTENT_MATCHING) Log.v(TAG, "Specific #" + i + ": " + ai);
3587                N = results.size();
3588                int j;
3589                for (j=specificsPos; j<N; j++) {
3590                    ResolveInfo sri = results.get(j);
3591                    if ((sri.activityInfo.name.equals(comp.getClassName())
3592                            && sri.activityInfo.applicationInfo.packageName.equals(
3593                                    comp.getPackageName()))
3594                        || (action != null && sri.filter.matchAction(action))) {
3595                        results.remove(j);
3596                        if (DEBUG_INTENT_MATCHING) Log.v(
3597                            TAG, "Removing duplicate item from " + j
3598                            + " due to specific " + specificsPos);
3599                        if (ri == null) {
3600                            ri = sri;
3601                        }
3602                        j--;
3603                        N--;
3604                    }
3605                }
3606
3607                // Add this specific item to its proper place.
3608                if (ri == null) {
3609                    ri = new ResolveInfo();
3610                    ri.activityInfo = ai;
3611                }
3612                results.add(specificsPos, ri);
3613                ri.specificIndex = i;
3614                specificsPos++;
3615            }
3616        }
3617
3618        // Now we go through the remaining generic results and remove any
3619        // duplicate actions that are found here.
3620        N = results.size();
3621        for (int i=specificsPos; i<N-1; i++) {
3622            final ResolveInfo rii = results.get(i);
3623            if (rii.filter == null) {
3624                continue;
3625            }
3626
3627            // Iterate over all of the actions of this result's intent
3628            // filter...  typically this should be just one.
3629            final Iterator<String> it = rii.filter.actionsIterator();
3630            if (it == null) {
3631                continue;
3632            }
3633            while (it.hasNext()) {
3634                final String action = it.next();
3635                if (resultsAction != null && resultsAction.equals(action)) {
3636                    // If this action was explicitly requested, then don't
3637                    // remove things that have it.
3638                    continue;
3639                }
3640                for (int j=i+1; j<N; j++) {
3641                    final ResolveInfo rij = results.get(j);
3642                    if (rij.filter != null && rij.filter.hasAction(action)) {
3643                        results.remove(j);
3644                        if (DEBUG_INTENT_MATCHING) Log.v(
3645                            TAG, "Removing duplicate item from " + j
3646                            + " due to action " + action + " at " + i);
3647                        j--;
3648                        N--;
3649                    }
3650                }
3651            }
3652
3653            // If the caller didn't request filter information, drop it now
3654            // so we don't have to marshall/unmarshall it.
3655            if ((flags&PackageManager.GET_RESOLVED_FILTER) == 0) {
3656                rii.filter = null;
3657            }
3658        }
3659
3660        // Filter out the caller activity if so requested.
3661        if (caller != null) {
3662            N = results.size();
3663            for (int i=0; i<N; i++) {
3664                ActivityInfo ainfo = results.get(i).activityInfo;
3665                if (caller.getPackageName().equals(ainfo.applicationInfo.packageName)
3666                        && caller.getClassName().equals(ainfo.name)) {
3667                    results.remove(i);
3668                    break;
3669                }
3670            }
3671        }
3672
3673        // If the caller didn't request filter information,
3674        // drop them now so we don't have to
3675        // marshall/unmarshall it.
3676        if ((flags&PackageManager.GET_RESOLVED_FILTER) == 0) {
3677            N = results.size();
3678            for (int i=0; i<N; i++) {
3679                results.get(i).filter = null;
3680            }
3681        }
3682
3683        if (DEBUG_INTENT_MATCHING) Log.v(TAG, "Result: " + results);
3684        return results;
3685    }
3686
3687    @Override
3688    public List<ResolveInfo> queryIntentReceivers(Intent intent, String resolvedType, int flags,
3689            int userId) {
3690        if (!sUserManager.exists(userId)) return Collections.emptyList();
3691        ComponentName comp = intent.getComponent();
3692        if (comp == null) {
3693            if (intent.getSelector() != null) {
3694                intent = intent.getSelector();
3695                comp = intent.getComponent();
3696            }
3697        }
3698        if (comp != null) {
3699            List<ResolveInfo> list = new ArrayList<ResolveInfo>(1);
3700            ActivityInfo ai = getReceiverInfo(comp, flags, userId);
3701            if (ai != null) {
3702                ResolveInfo ri = new ResolveInfo();
3703                ri.activityInfo = ai;
3704                list.add(ri);
3705            }
3706            return list;
3707        }
3708
3709        // reader
3710        synchronized (mPackages) {
3711            String pkgName = intent.getPackage();
3712            if (pkgName == null) {
3713                return mReceivers.queryIntent(intent, resolvedType, flags, userId);
3714            }
3715            final PackageParser.Package pkg = mPackages.get(pkgName);
3716            if (pkg != null) {
3717                return mReceivers.queryIntentForPackage(intent, resolvedType, flags, pkg.receivers,
3718                        userId);
3719            }
3720            return null;
3721        }
3722    }
3723
3724    @Override
3725    public ResolveInfo resolveService(Intent intent, String resolvedType, int flags, int userId) {
3726        List<ResolveInfo> query = queryIntentServices(intent, resolvedType, flags, userId);
3727        if (!sUserManager.exists(userId)) return null;
3728        if (query != null) {
3729            if (query.size() >= 1) {
3730                // If there is more than one service with the same priority,
3731                // just arbitrarily pick the first one.
3732                return query.get(0);
3733            }
3734        }
3735        return null;
3736    }
3737
3738    @Override
3739    public List<ResolveInfo> queryIntentServices(Intent intent, String resolvedType, int flags,
3740            int userId) {
3741        if (!sUserManager.exists(userId)) return Collections.emptyList();
3742        ComponentName comp = intent.getComponent();
3743        if (comp == null) {
3744            if (intent.getSelector() != null) {
3745                intent = intent.getSelector();
3746                comp = intent.getComponent();
3747            }
3748        }
3749        if (comp != null) {
3750            final List<ResolveInfo> list = new ArrayList<ResolveInfo>(1);
3751            final ServiceInfo si = getServiceInfo(comp, flags, userId);
3752            if (si != null) {
3753                final ResolveInfo ri = new ResolveInfo();
3754                ri.serviceInfo = si;
3755                list.add(ri);
3756            }
3757            return list;
3758        }
3759
3760        // reader
3761        synchronized (mPackages) {
3762            String pkgName = intent.getPackage();
3763            if (pkgName == null) {
3764                return mServices.queryIntent(intent, resolvedType, flags, userId);
3765            }
3766            final PackageParser.Package pkg = mPackages.get(pkgName);
3767            if (pkg != null) {
3768                return mServices.queryIntentForPackage(intent, resolvedType, flags, pkg.services,
3769                        userId);
3770            }
3771            return null;
3772        }
3773    }
3774
3775    @Override
3776    public List<ResolveInfo> queryIntentContentProviders(
3777            Intent intent, String resolvedType, int flags, int userId) {
3778        if (!sUserManager.exists(userId)) return Collections.emptyList();
3779        ComponentName comp = intent.getComponent();
3780        if (comp == null) {
3781            if (intent.getSelector() != null) {
3782                intent = intent.getSelector();
3783                comp = intent.getComponent();
3784            }
3785        }
3786        if (comp != null) {
3787            final List<ResolveInfo> list = new ArrayList<ResolveInfo>(1);
3788            final ProviderInfo pi = getProviderInfo(comp, flags, userId);
3789            if (pi != null) {
3790                final ResolveInfo ri = new ResolveInfo();
3791                ri.providerInfo = pi;
3792                list.add(ri);
3793            }
3794            return list;
3795        }
3796
3797        // reader
3798        synchronized (mPackages) {
3799            String pkgName = intent.getPackage();
3800            if (pkgName == null) {
3801                return mProviders.queryIntent(intent, resolvedType, flags, userId);
3802            }
3803            final PackageParser.Package pkg = mPackages.get(pkgName);
3804            if (pkg != null) {
3805                return mProviders.queryIntentForPackage(
3806                        intent, resolvedType, flags, pkg.providers, userId);
3807            }
3808            return null;
3809        }
3810    }
3811
3812    @Override
3813    public ParceledListSlice<PackageInfo> getInstalledPackages(int flags, int userId) {
3814        final boolean listUninstalled = (flags & PackageManager.GET_UNINSTALLED_PACKAGES) != 0;
3815
3816        enforceCrossUserPermission(Binder.getCallingUid(), userId, true, false, "get installed packages");
3817
3818        // writer
3819        synchronized (mPackages) {
3820            ArrayList<PackageInfo> list;
3821            if (listUninstalled) {
3822                list = new ArrayList<PackageInfo>(mSettings.mPackages.size());
3823                for (PackageSetting ps : mSettings.mPackages.values()) {
3824                    PackageInfo pi;
3825                    if (ps.pkg != null) {
3826                        pi = generatePackageInfo(ps.pkg, flags, userId);
3827                    } else {
3828                        pi = generatePackageInfoFromSettingsLPw(ps.name, flags, userId);
3829                    }
3830                    if (pi != null) {
3831                        list.add(pi);
3832                    }
3833                }
3834            } else {
3835                list = new ArrayList<PackageInfo>(mPackages.size());
3836                for (PackageParser.Package p : mPackages.values()) {
3837                    PackageInfo pi = generatePackageInfo(p, flags, userId);
3838                    if (pi != null) {
3839                        list.add(pi);
3840                    }
3841                }
3842            }
3843
3844            return new ParceledListSlice<PackageInfo>(list);
3845        }
3846    }
3847
3848    private void addPackageHoldingPermissions(ArrayList<PackageInfo> list, PackageSetting ps,
3849            String[] permissions, boolean[] tmp, int flags, int userId) {
3850        int numMatch = 0;
3851        final GrantedPermissions gp = ps.sharedUser != null ? ps.sharedUser : ps;
3852        for (int i=0; i<permissions.length; i++) {
3853            if (gp.grantedPermissions.contains(permissions[i])) {
3854                tmp[i] = true;
3855                numMatch++;
3856            } else {
3857                tmp[i] = false;
3858            }
3859        }
3860        if (numMatch == 0) {
3861            return;
3862        }
3863        PackageInfo pi;
3864        if (ps.pkg != null) {
3865            pi = generatePackageInfo(ps.pkg, flags, userId);
3866        } else {
3867            pi = generatePackageInfoFromSettingsLPw(ps.name, flags, userId);
3868        }
3869        // The above might return null in cases of uninstalled apps or install-state
3870        // skew across users/profiles.
3871        if (pi != null) {
3872            if ((flags&PackageManager.GET_PERMISSIONS) == 0) {
3873                if (numMatch == permissions.length) {
3874                    pi.requestedPermissions = permissions;
3875                } else {
3876                    pi.requestedPermissions = new String[numMatch];
3877                    numMatch = 0;
3878                    for (int i=0; i<permissions.length; i++) {
3879                        if (tmp[i]) {
3880                            pi.requestedPermissions[numMatch] = permissions[i];
3881                            numMatch++;
3882                        }
3883                    }
3884                }
3885            }
3886            list.add(pi);
3887        }
3888    }
3889
3890    @Override
3891    public ParceledListSlice<PackageInfo> getPackagesHoldingPermissions(
3892            String[] permissions, int flags, int userId) {
3893        if (!sUserManager.exists(userId)) return null;
3894        final boolean listUninstalled = (flags & PackageManager.GET_UNINSTALLED_PACKAGES) != 0;
3895
3896        // writer
3897        synchronized (mPackages) {
3898            ArrayList<PackageInfo> list = new ArrayList<PackageInfo>();
3899            boolean[] tmpBools = new boolean[permissions.length];
3900            if (listUninstalled) {
3901                for (PackageSetting ps : mSettings.mPackages.values()) {
3902                    addPackageHoldingPermissions(list, ps, permissions, tmpBools, flags, userId);
3903                }
3904            } else {
3905                for (PackageParser.Package pkg : mPackages.values()) {
3906                    PackageSetting ps = (PackageSetting)pkg.mExtras;
3907                    if (ps != null) {
3908                        addPackageHoldingPermissions(list, ps, permissions, tmpBools, flags,
3909                                userId);
3910                    }
3911                }
3912            }
3913
3914            return new ParceledListSlice<PackageInfo>(list);
3915        }
3916    }
3917
3918    @Override
3919    public ParceledListSlice<ApplicationInfo> getInstalledApplications(int flags, int userId) {
3920        if (!sUserManager.exists(userId)) return null;
3921        final boolean listUninstalled = (flags & PackageManager.GET_UNINSTALLED_PACKAGES) != 0;
3922
3923        // writer
3924        synchronized (mPackages) {
3925            ArrayList<ApplicationInfo> list;
3926            if (listUninstalled) {
3927                list = new ArrayList<ApplicationInfo>(mSettings.mPackages.size());
3928                for (PackageSetting ps : mSettings.mPackages.values()) {
3929                    ApplicationInfo ai;
3930                    if (ps.pkg != null) {
3931                        ai = PackageParser.generateApplicationInfo(ps.pkg, flags,
3932                                ps.readUserState(userId), userId);
3933                    } else {
3934                        ai = generateApplicationInfoFromSettingsLPw(ps.name, flags, userId);
3935                    }
3936                    if (ai != null) {
3937                        list.add(ai);
3938                    }
3939                }
3940            } else {
3941                list = new ArrayList<ApplicationInfo>(mPackages.size());
3942                for (PackageParser.Package p : mPackages.values()) {
3943                    if (p.mExtras != null) {
3944                        ApplicationInfo ai = PackageParser.generateApplicationInfo(p, flags,
3945                                ((PackageSetting)p.mExtras).readUserState(userId), userId);
3946                        if (ai != null) {
3947                            list.add(ai);
3948                        }
3949                    }
3950                }
3951            }
3952
3953            return new ParceledListSlice<ApplicationInfo>(list);
3954        }
3955    }
3956
3957    public List<ApplicationInfo> getPersistentApplications(int flags) {
3958        final ArrayList<ApplicationInfo> finalList = new ArrayList<ApplicationInfo>();
3959
3960        // reader
3961        synchronized (mPackages) {
3962            final Iterator<PackageParser.Package> i = mPackages.values().iterator();
3963            final int userId = UserHandle.getCallingUserId();
3964            while (i.hasNext()) {
3965                final PackageParser.Package p = i.next();
3966                if (p.applicationInfo != null
3967                        && (p.applicationInfo.flags&ApplicationInfo.FLAG_PERSISTENT) != 0
3968                        && (!mSafeMode || isSystemApp(p))) {
3969                    PackageSetting ps = mSettings.mPackages.get(p.packageName);
3970                    if (ps != null) {
3971                        ApplicationInfo ai = PackageParser.generateApplicationInfo(p, flags,
3972                                ps.readUserState(userId), userId);
3973                        if (ai != null) {
3974                            finalList.add(ai);
3975                        }
3976                    }
3977                }
3978            }
3979        }
3980
3981        return finalList;
3982    }
3983
3984    @Override
3985    public ProviderInfo resolveContentProvider(String name, int flags, int userId) {
3986        if (!sUserManager.exists(userId)) return null;
3987        // reader
3988        synchronized (mPackages) {
3989            final PackageParser.Provider provider = mProvidersByAuthority.get(name);
3990            PackageSetting ps = provider != null
3991                    ? mSettings.mPackages.get(provider.owner.packageName)
3992                    : null;
3993            return ps != null
3994                    && mSettings.isEnabledLPr(provider.info, flags, userId)
3995                    && (!mSafeMode || (provider.info.applicationInfo.flags
3996                            &ApplicationInfo.FLAG_SYSTEM) != 0)
3997                    ? PackageParser.generateProviderInfo(provider, flags,
3998                            ps.readUserState(userId), userId)
3999                    : null;
4000        }
4001    }
4002
4003    /**
4004     * @deprecated
4005     */
4006    @Deprecated
4007    public void querySyncProviders(List<String> outNames, List<ProviderInfo> outInfo) {
4008        // reader
4009        synchronized (mPackages) {
4010            final Iterator<Map.Entry<String, PackageParser.Provider>> i = mProvidersByAuthority
4011                    .entrySet().iterator();
4012            final int userId = UserHandle.getCallingUserId();
4013            while (i.hasNext()) {
4014                Map.Entry<String, PackageParser.Provider> entry = i.next();
4015                PackageParser.Provider p = entry.getValue();
4016                PackageSetting ps = mSettings.mPackages.get(p.owner.packageName);
4017
4018                if (ps != null && p.syncable
4019                        && (!mSafeMode || (p.info.applicationInfo.flags
4020                                &ApplicationInfo.FLAG_SYSTEM) != 0)) {
4021                    ProviderInfo info = PackageParser.generateProviderInfo(p, 0,
4022                            ps.readUserState(userId), userId);
4023                    if (info != null) {
4024                        outNames.add(entry.getKey());
4025                        outInfo.add(info);
4026                    }
4027                }
4028            }
4029        }
4030    }
4031
4032    @Override
4033    public List<ProviderInfo> queryContentProviders(String processName,
4034            int uid, int flags) {
4035        ArrayList<ProviderInfo> finalList = null;
4036        // reader
4037        synchronized (mPackages) {
4038            final Iterator<PackageParser.Provider> i = mProviders.mProviders.values().iterator();
4039            final int userId = processName != null ?
4040                    UserHandle.getUserId(uid) : UserHandle.getCallingUserId();
4041            while (i.hasNext()) {
4042                final PackageParser.Provider p = i.next();
4043                PackageSetting ps = mSettings.mPackages.get(p.owner.packageName);
4044                if (ps != null && p.info.authority != null
4045                        && (processName == null
4046                                || (p.info.processName.equals(processName)
4047                                        && UserHandle.isSameApp(p.info.applicationInfo.uid, uid)))
4048                        && mSettings.isEnabledLPr(p.info, flags, userId)
4049                        && (!mSafeMode
4050                                || (p.info.applicationInfo.flags & ApplicationInfo.FLAG_SYSTEM) != 0)) {
4051                    if (finalList == null) {
4052                        finalList = new ArrayList<ProviderInfo>(3);
4053                    }
4054                    ProviderInfo info = PackageParser.generateProviderInfo(p, flags,
4055                            ps.readUserState(userId), userId);
4056                    if (info != null) {
4057                        finalList.add(info);
4058                    }
4059                }
4060            }
4061        }
4062
4063        if (finalList != null) {
4064            Collections.sort(finalList, mProviderInitOrderSorter);
4065        }
4066
4067        return finalList;
4068    }
4069
4070    @Override
4071    public InstrumentationInfo getInstrumentationInfo(ComponentName name,
4072            int flags) {
4073        // reader
4074        synchronized (mPackages) {
4075            final PackageParser.Instrumentation i = mInstrumentation.get(name);
4076            return PackageParser.generateInstrumentationInfo(i, flags);
4077        }
4078    }
4079
4080    @Override
4081    public List<InstrumentationInfo> queryInstrumentation(String targetPackage,
4082            int flags) {
4083        ArrayList<InstrumentationInfo> finalList =
4084            new ArrayList<InstrumentationInfo>();
4085
4086        // reader
4087        synchronized (mPackages) {
4088            final Iterator<PackageParser.Instrumentation> i = mInstrumentation.values().iterator();
4089            while (i.hasNext()) {
4090                final PackageParser.Instrumentation p = i.next();
4091                if (targetPackage == null
4092                        || targetPackage.equals(p.info.targetPackage)) {
4093                    InstrumentationInfo ii = PackageParser.generateInstrumentationInfo(p,
4094                            flags);
4095                    if (ii != null) {
4096                        finalList.add(ii);
4097                    }
4098                }
4099            }
4100        }
4101
4102        return finalList;
4103    }
4104
4105    private void createIdmapsForPackageLI(PackageParser.Package pkg) {
4106        ArrayMap<String, PackageParser.Package> overlays = mOverlays.get(pkg.packageName);
4107        if (overlays == null) {
4108            Slog.w(TAG, "Unable to create idmap for " + pkg.packageName + ": no overlay packages");
4109            return;
4110        }
4111        for (PackageParser.Package opkg : overlays.values()) {
4112            // Not much to do if idmap fails: we already logged the error
4113            // and we certainly don't want to abort installation of pkg simply
4114            // because an overlay didn't fit properly. For these reasons,
4115            // ignore the return value of createIdmapForPackagePairLI.
4116            createIdmapForPackagePairLI(pkg, opkg);
4117        }
4118    }
4119
4120    private boolean createIdmapForPackagePairLI(PackageParser.Package pkg,
4121            PackageParser.Package opkg) {
4122        if (!opkg.mTrustedOverlay) {
4123            Slog.w(TAG, "Skipping target and overlay pair " + pkg.baseCodePath + " and " +
4124                    opkg.baseCodePath + ": overlay not trusted");
4125            return false;
4126        }
4127        ArrayMap<String, PackageParser.Package> overlaySet = mOverlays.get(pkg.packageName);
4128        if (overlaySet == null) {
4129            Slog.e(TAG, "was about to create idmap for " + pkg.baseCodePath + " and " +
4130                    opkg.baseCodePath + " but target package has no known overlays");
4131            return false;
4132        }
4133        final int sharedGid = UserHandle.getSharedAppGid(pkg.applicationInfo.uid);
4134        // TODO: generate idmap for split APKs
4135        if (mInstaller.idmap(pkg.baseCodePath, opkg.baseCodePath, sharedGid) != 0) {
4136            Slog.e(TAG, "Failed to generate idmap for " + pkg.baseCodePath + " and "
4137                    + opkg.baseCodePath);
4138            return false;
4139        }
4140        PackageParser.Package[] overlayArray =
4141            overlaySet.values().toArray(new PackageParser.Package[0]);
4142        Comparator<PackageParser.Package> cmp = new Comparator<PackageParser.Package>() {
4143            public int compare(PackageParser.Package p1, PackageParser.Package p2) {
4144                return p1.mOverlayPriority - p2.mOverlayPriority;
4145            }
4146        };
4147        Arrays.sort(overlayArray, cmp);
4148
4149        pkg.applicationInfo.resourceDirs = new String[overlayArray.length];
4150        int i = 0;
4151        for (PackageParser.Package p : overlayArray) {
4152            pkg.applicationInfo.resourceDirs[i++] = p.baseCodePath;
4153        }
4154        return true;
4155    }
4156
4157    private void scanDirLI(File dir, int parseFlags, int scanFlags, long currentTime) {
4158        final File[] files = dir.listFiles();
4159        if (ArrayUtils.isEmpty(files)) {
4160            Log.d(TAG, "No files in app dir " + dir);
4161            return;
4162        }
4163
4164        if (DEBUG_PACKAGE_SCANNING) {
4165            Log.d(TAG, "Scanning app dir " + dir + " scanFlags=" + scanFlags
4166                    + " flags=0x" + Integer.toHexString(parseFlags));
4167        }
4168
4169        for (File file : files) {
4170            final boolean isPackage = (isApkFile(file) || file.isDirectory())
4171                    && !PackageInstallerService.isStageName(file.getName());
4172            if (!isPackage) {
4173                // Ignore entries which are not packages
4174                continue;
4175            }
4176            try {
4177                scanPackageLI(file, parseFlags | PackageParser.PARSE_MUST_BE_APK,
4178                        scanFlags, currentTime, null);
4179            } catch (PackageManagerException e) {
4180                Slog.w(TAG, "Failed to parse " + file + ": " + e.getMessage());
4181
4182                // Delete invalid userdata apps
4183                if ((parseFlags & PackageParser.PARSE_IS_SYSTEM) == 0 &&
4184                        e.error == PackageManager.INSTALL_FAILED_INVALID_APK) {
4185                    logCriticalInfo(Log.WARN, "Deleting invalid package at " + file);
4186                    if (file.isDirectory()) {
4187                        FileUtils.deleteContents(file);
4188                    }
4189                    file.delete();
4190                }
4191            }
4192        }
4193    }
4194
4195    private static File getSettingsProblemFile() {
4196        File dataDir = Environment.getDataDirectory();
4197        File systemDir = new File(dataDir, "system");
4198        File fname = new File(systemDir, "uiderrors.txt");
4199        return fname;
4200    }
4201
4202    static void reportSettingsProblem(int priority, String msg) {
4203        logCriticalInfo(priority, msg);
4204    }
4205
4206    static void logCriticalInfo(int priority, String msg) {
4207        Slog.println(priority, TAG, msg);
4208        EventLogTags.writePmCriticalInfo(msg);
4209        try {
4210            File fname = getSettingsProblemFile();
4211            FileOutputStream out = new FileOutputStream(fname, true);
4212            PrintWriter pw = new FastPrintWriter(out);
4213            SimpleDateFormat formatter = new SimpleDateFormat();
4214            String dateString = formatter.format(new Date(System.currentTimeMillis()));
4215            pw.println(dateString + ": " + msg);
4216            pw.close();
4217            FileUtils.setPermissions(
4218                    fname.toString(),
4219                    FileUtils.S_IRWXU|FileUtils.S_IRWXG|FileUtils.S_IROTH,
4220                    -1, -1);
4221        } catch (java.io.IOException e) {
4222        }
4223    }
4224
4225    private void collectCertificatesLI(PackageParser pp, PackageSetting ps,
4226            PackageParser.Package pkg, File srcFile, int parseFlags)
4227            throws PackageManagerException {
4228        if (ps != null
4229                && ps.codePath.equals(srcFile)
4230                && ps.timeStamp == srcFile.lastModified()
4231                && !isCompatSignatureUpdateNeeded(pkg)
4232                && !isRecoverSignatureUpdateNeeded(pkg)) {
4233            long mSigningKeySetId = ps.keySetData.getProperSigningKeySet();
4234            if (ps.signatures.mSignatures != null
4235                    && ps.signatures.mSignatures.length != 0
4236                    && mSigningKeySetId != PackageKeySetData.KEYSET_UNASSIGNED) {
4237                // Optimization: reuse the existing cached certificates
4238                // if the package appears to be unchanged.
4239                pkg.mSignatures = ps.signatures.mSignatures;
4240                KeySetManagerService ksms = mSettings.mKeySetManagerService;
4241                synchronized (mPackages) {
4242                    pkg.mSigningKeys = ksms.getPublicKeysFromKeySetLPr(mSigningKeySetId);
4243                }
4244                return;
4245            }
4246
4247            Slog.w(TAG, "PackageSetting for " + ps.name
4248                    + " is missing signatures.  Collecting certs again to recover them.");
4249        } else {
4250            Log.i(TAG, srcFile.toString() + " changed; collecting certs");
4251        }
4252
4253        try {
4254            pp.collectCertificates(pkg, parseFlags);
4255            pp.collectManifestDigest(pkg);
4256        } catch (PackageParserException e) {
4257            throw PackageManagerException.from(e);
4258        }
4259    }
4260
4261    /*
4262     *  Scan a package and return the newly parsed package.
4263     *  Returns null in case of errors and the error code is stored in mLastScanError
4264     */
4265    private PackageParser.Package scanPackageLI(File scanFile, int parseFlags, int scanFlags,
4266            long currentTime, UserHandle user) throws PackageManagerException {
4267        if (DEBUG_INSTALL) Slog.d(TAG, "Parsing: " + scanFile);
4268        parseFlags |= mDefParseFlags;
4269        PackageParser pp = new PackageParser();
4270        pp.setSeparateProcesses(mSeparateProcesses);
4271        pp.setOnlyCoreApps(mOnlyCore);
4272        pp.setDisplayMetrics(mMetrics);
4273
4274        if ((scanFlags & SCAN_TRUSTED_OVERLAY) != 0) {
4275            parseFlags |= PackageParser.PARSE_TRUSTED_OVERLAY;
4276        }
4277
4278        final PackageParser.Package pkg;
4279        try {
4280            pkg = pp.parsePackage(scanFile, parseFlags);
4281        } catch (PackageParserException e) {
4282            throw PackageManagerException.from(e);
4283        }
4284
4285        PackageSetting ps = null;
4286        PackageSetting updatedPkg;
4287        // reader
4288        synchronized (mPackages) {
4289            // Look to see if we already know about this package.
4290            String oldName = mSettings.mRenamedPackages.get(pkg.packageName);
4291            if (pkg.mOriginalPackages != null && pkg.mOriginalPackages.contains(oldName)) {
4292                // This package has been renamed to its original name.  Let's
4293                // use that.
4294                ps = mSettings.peekPackageLPr(oldName);
4295            }
4296            // If there was no original package, see one for the real package name.
4297            if (ps == null) {
4298                ps = mSettings.peekPackageLPr(pkg.packageName);
4299            }
4300            // Check to see if this package could be hiding/updating a system
4301            // package.  Must look for it either under the original or real
4302            // package name depending on our state.
4303            updatedPkg = mSettings.getDisabledSystemPkgLPr(ps != null ? ps.name : pkg.packageName);
4304            if (DEBUG_INSTALL && updatedPkg != null) Slog.d(TAG, "updatedPkg = " + updatedPkg);
4305        }
4306        boolean updatedPkgBetter = false;
4307        // First check if this is a system package that may involve an update
4308        if (updatedPkg != null && (parseFlags&PackageParser.PARSE_IS_SYSTEM) != 0) {
4309            // If new package is not located in "/system/priv-app" (e.g. due to an OTA),
4310            // it needs to drop FLAG_PRIVILEGED.
4311            if (locationIsPrivileged(scanFile)) {
4312                updatedPkg.pkgFlags |= ApplicationInfo.FLAG_PRIVILEGED;
4313            } else {
4314                updatedPkg.pkgFlags &= ~ApplicationInfo.FLAG_PRIVILEGED;
4315            }
4316
4317            if (ps != null && !ps.codePath.equals(scanFile)) {
4318                // The path has changed from what was last scanned...  check the
4319                // version of the new path against what we have stored to determine
4320                // what to do.
4321                if (DEBUG_INSTALL) Slog.d(TAG, "Path changing from " + ps.codePath);
4322                if (pkg.mVersionCode <= ps.versionCode) {
4323                    // The system package has been updated and the code path does not match
4324                    // Ignore entry. Skip it.
4325                    Slog.i(TAG, "Package " + ps.name + " at " + scanFile
4326                            + " ignored: updated version " + ps.versionCode
4327                            + " better than this " + pkg.mVersionCode);
4328                    if (!updatedPkg.codePath.equals(scanFile)) {
4329                        Slog.w(PackageManagerService.TAG, "Code path for hidden system pkg : "
4330                                + ps.name + " changing from " + updatedPkg.codePathString
4331                                + " to " + scanFile);
4332                        updatedPkg.codePath = scanFile;
4333                        updatedPkg.codePathString = scanFile.toString();
4334                        updatedPkg.resourcePath = scanFile;
4335                        updatedPkg.resourcePathString = scanFile.toString();
4336                    }
4337                    updatedPkg.pkg = pkg;
4338                    throw new PackageManagerException(INSTALL_FAILED_DUPLICATE_PACKAGE, null);
4339                } else {
4340                    // The current app on the system partition is better than
4341                    // what we have updated to on the data partition; switch
4342                    // back to the system partition version.
4343                    // At this point, its safely assumed that package installation for
4344                    // apps in system partition will go through. If not there won't be a working
4345                    // version of the app
4346                    // writer
4347                    synchronized (mPackages) {
4348                        // Just remove the loaded entries from package lists.
4349                        mPackages.remove(ps.name);
4350                    }
4351
4352                    logCriticalInfo(Log.WARN, "Package " + ps.name + " at " + scanFile
4353                            + " reverting from " + ps.codePathString
4354                            + ": new version " + pkg.mVersionCode
4355                            + " better than installed " + ps.versionCode);
4356
4357                    InstallArgs args = createInstallArgsForExisting(packageFlagsToInstallFlags(ps),
4358                            ps.codePathString, ps.resourcePathString, ps.legacyNativeLibraryPathString,
4359                            getAppDexInstructionSets(ps));
4360                    synchronized (mInstallLock) {
4361                        args.cleanUpResourcesLI();
4362                    }
4363                    synchronized (mPackages) {
4364                        mSettings.enableSystemPackageLPw(ps.name);
4365                    }
4366                    updatedPkgBetter = true;
4367                }
4368            }
4369        }
4370
4371        if (updatedPkg != null) {
4372            // An updated system app will not have the PARSE_IS_SYSTEM flag set
4373            // initially
4374            parseFlags |= PackageParser.PARSE_IS_SYSTEM;
4375
4376            // An updated privileged app will not have the PARSE_IS_PRIVILEGED
4377            // flag set initially
4378            if ((updatedPkg.pkgFlags & ApplicationInfo.FLAG_PRIVILEGED) != 0) {
4379                parseFlags |= PackageParser.PARSE_IS_PRIVILEGED;
4380            }
4381        }
4382
4383        // Verify certificates against what was last scanned
4384        collectCertificatesLI(pp, ps, pkg, scanFile, parseFlags);
4385
4386        /*
4387         * A new system app appeared, but we already had a non-system one of the
4388         * same name installed earlier.
4389         */
4390        boolean shouldHideSystemApp = false;
4391        if (updatedPkg == null && ps != null
4392                && (parseFlags & PackageParser.PARSE_IS_SYSTEM_DIR) != 0 && !isSystemApp(ps)) {
4393            /*
4394             * Check to make sure the signatures match first. If they don't,
4395             * wipe the installed application and its data.
4396             */
4397            if (compareSignatures(ps.signatures.mSignatures, pkg.mSignatures)
4398                    != PackageManager.SIGNATURE_MATCH) {
4399                logCriticalInfo(Log.WARN, "Package " + ps.name + " appeared on system, but"
4400                        + " signatures don't match existing userdata copy; removing");
4401                deletePackageLI(pkg.packageName, null, true, null, null, 0, null, false);
4402                ps = null;
4403            } else {
4404                /*
4405                 * If the newly-added system app is an older version than the
4406                 * already installed version, hide it. It will be scanned later
4407                 * and re-added like an update.
4408                 */
4409                if (pkg.mVersionCode <= ps.versionCode) {
4410                    shouldHideSystemApp = true;
4411                    logCriticalInfo(Log.INFO, "Package " + ps.name + " appeared at " + scanFile
4412                            + " but new version " + pkg.mVersionCode + " better than installed "
4413                            + ps.versionCode + "; hiding system");
4414                } else {
4415                    /*
4416                     * The newly found system app is a newer version that the
4417                     * one previously installed. Simply remove the
4418                     * already-installed application and replace it with our own
4419                     * while keeping the application data.
4420                     */
4421                    logCriticalInfo(Log.WARN, "Package " + ps.name + " at " + scanFile
4422                            + " reverting from " + ps.codePathString + ": new version "
4423                            + pkg.mVersionCode + " better than installed " + ps.versionCode);
4424                    InstallArgs args = createInstallArgsForExisting(packageFlagsToInstallFlags(ps),
4425                            ps.codePathString, ps.resourcePathString, ps.legacyNativeLibraryPathString,
4426                            getAppDexInstructionSets(ps));
4427                    synchronized (mInstallLock) {
4428                        args.cleanUpResourcesLI();
4429                    }
4430                }
4431            }
4432        }
4433
4434        // The apk is forward locked (not public) if its code and resources
4435        // are kept in different files. (except for app in either system or
4436        // vendor path).
4437        // TODO grab this value from PackageSettings
4438        if ((parseFlags & PackageParser.PARSE_IS_SYSTEM_DIR) == 0) {
4439            if (ps != null && !ps.codePath.equals(ps.resourcePath)) {
4440                parseFlags |= PackageParser.PARSE_FORWARD_LOCK;
4441            }
4442        }
4443
4444        // TODO: extend to support forward-locked splits
4445        String resourcePath = null;
4446        String baseResourcePath = null;
4447        if ((parseFlags & PackageParser.PARSE_FORWARD_LOCK) != 0 && !updatedPkgBetter) {
4448            if (ps != null && ps.resourcePathString != null) {
4449                resourcePath = ps.resourcePathString;
4450                baseResourcePath = ps.resourcePathString;
4451            } else {
4452                // Should not happen at all. Just log an error.
4453                Slog.e(TAG, "Resource path not set for pkg : " + pkg.packageName);
4454            }
4455        } else {
4456            resourcePath = pkg.codePath;
4457            baseResourcePath = pkg.baseCodePath;
4458        }
4459
4460        // Set application objects path explicitly.
4461        pkg.applicationInfo.setCodePath(pkg.codePath);
4462        pkg.applicationInfo.setBaseCodePath(pkg.baseCodePath);
4463        pkg.applicationInfo.setSplitCodePaths(pkg.splitCodePaths);
4464        pkg.applicationInfo.setResourcePath(resourcePath);
4465        pkg.applicationInfo.setBaseResourcePath(baseResourcePath);
4466        pkg.applicationInfo.setSplitResourcePaths(pkg.splitCodePaths);
4467
4468        // Note that we invoke the following method only if we are about to unpack an application
4469        PackageParser.Package scannedPkg = scanPackageLI(pkg, parseFlags, scanFlags
4470                | SCAN_UPDATE_SIGNATURE, currentTime, user);
4471
4472        /*
4473         * If the system app should be overridden by a previously installed
4474         * data, hide the system app now and let the /data/app scan pick it up
4475         * again.
4476         */
4477        if (shouldHideSystemApp) {
4478            synchronized (mPackages) {
4479                /*
4480                 * We have to grant systems permissions before we hide, because
4481                 * grantPermissions will assume the package update is trying to
4482                 * expand its permissions.
4483                 */
4484                grantPermissionsLPw(pkg, true, pkg.packageName);
4485                mSettings.disableSystemPackageLPw(pkg.packageName);
4486            }
4487        }
4488
4489        return scannedPkg;
4490    }
4491
4492    private static String fixProcessName(String defProcessName,
4493            String processName, int uid) {
4494        if (processName == null) {
4495            return defProcessName;
4496        }
4497        return processName;
4498    }
4499
4500    private void verifySignaturesLP(PackageSetting pkgSetting, PackageParser.Package pkg)
4501            throws PackageManagerException {
4502        if (pkgSetting.signatures.mSignatures != null) {
4503            // Already existing package. Make sure signatures match
4504            boolean match = compareSignatures(pkgSetting.signatures.mSignatures, pkg.mSignatures)
4505                    == PackageManager.SIGNATURE_MATCH;
4506            if (!match) {
4507                match = compareSignaturesCompat(pkgSetting.signatures, pkg)
4508                        == PackageManager.SIGNATURE_MATCH;
4509            }
4510            if (!match) {
4511                match = compareSignaturesRecover(pkgSetting.signatures, pkg)
4512                        == PackageManager.SIGNATURE_MATCH;
4513            }
4514            if (!match) {
4515                throw new PackageManagerException(INSTALL_FAILED_UPDATE_INCOMPATIBLE, "Package "
4516                        + pkg.packageName + " signatures do not match the "
4517                        + "previously installed version; ignoring!");
4518            }
4519        }
4520
4521        // Check for shared user signatures
4522        if (pkgSetting.sharedUser != null && pkgSetting.sharedUser.signatures.mSignatures != null) {
4523            // Already existing package. Make sure signatures match
4524            boolean match = compareSignatures(pkgSetting.sharedUser.signatures.mSignatures,
4525                    pkg.mSignatures) == PackageManager.SIGNATURE_MATCH;
4526            if (!match) {
4527                match = compareSignaturesCompat(pkgSetting.sharedUser.signatures, pkg)
4528                        == PackageManager.SIGNATURE_MATCH;
4529            }
4530            if (!match) {
4531                match = compareSignaturesRecover(pkgSetting.sharedUser.signatures, pkg)
4532                        == PackageManager.SIGNATURE_MATCH;
4533            }
4534            if (!match) {
4535                throw new PackageManagerException(INSTALL_FAILED_SHARED_USER_INCOMPATIBLE,
4536                        "Package " + pkg.packageName
4537                        + " has no signatures that match those in shared user "
4538                        + pkgSetting.sharedUser.name + "; ignoring!");
4539            }
4540        }
4541    }
4542
4543    /**
4544     * Enforces that only the system UID or root's UID can call a method exposed
4545     * via Binder.
4546     *
4547     * @param message used as message if SecurityException is thrown
4548     * @throws SecurityException if the caller is not system or root
4549     */
4550    private static final void enforceSystemOrRoot(String message) {
4551        final int uid = Binder.getCallingUid();
4552        if (uid != Process.SYSTEM_UID && uid != 0) {
4553            throw new SecurityException(message);
4554        }
4555    }
4556
4557    @Override
4558    public void performBootDexOpt() {
4559        enforceSystemOrRoot("Only the system can request dexopt be performed");
4560
4561        // Before everything else, see whether we need to fstrim.
4562        try {
4563            IMountService ms = PackageHelper.getMountService();
4564            if (ms != null) {
4565                final boolean isUpgrade = isUpgrade();
4566                boolean doTrim = isUpgrade;
4567                if (doTrim) {
4568                    Slog.w(TAG, "Running disk maintenance immediately due to system update");
4569                } else {
4570                    final long interval = android.provider.Settings.Global.getLong(
4571                            mContext.getContentResolver(),
4572                            android.provider.Settings.Global.FSTRIM_MANDATORY_INTERVAL,
4573                            DEFAULT_MANDATORY_FSTRIM_INTERVAL);
4574                    if (interval > 0) {
4575                        final long timeSinceLast = System.currentTimeMillis() - ms.lastMaintenance();
4576                        if (timeSinceLast > interval) {
4577                            doTrim = true;
4578                            Slog.w(TAG, "No disk maintenance in " + timeSinceLast
4579                                    + "; running immediately");
4580                        }
4581                    }
4582                }
4583                if (doTrim) {
4584                    if (!isFirstBoot()) {
4585                        try {
4586                            ActivityManagerNative.getDefault().showBootMessage(
4587                                    mContext.getResources().getString(
4588                                            R.string.android_upgrading_fstrim), true);
4589                        } catch (RemoteException e) {
4590                        }
4591                    }
4592                    ms.runMaintenance();
4593                }
4594            } else {
4595                Slog.e(TAG, "Mount service unavailable!");
4596            }
4597        } catch (RemoteException e) {
4598            // Can't happen; MountService is local
4599        }
4600
4601        final ArraySet<PackageParser.Package> pkgs;
4602        synchronized (mPackages) {
4603            pkgs = mDeferredDexOpt;
4604            mDeferredDexOpt = null;
4605        }
4606
4607        if (pkgs != null) {
4608            // Sort apps by importance for dexopt ordering. Important apps are given more priority
4609            // in case the device runs out of space.
4610            ArrayList<PackageParser.Package> sortedPkgs = new ArrayList<PackageParser.Package>();
4611            // Give priority to core apps.
4612            for (Iterator<PackageParser.Package> it = pkgs.iterator(); it.hasNext();) {
4613                PackageParser.Package pkg = it.next();
4614                if (pkg.coreApp) {
4615                    if (DEBUG_DEXOPT) {
4616                        Log.i(TAG, "Adding core app " + sortedPkgs.size() + ": " + pkg.packageName);
4617                    }
4618                    sortedPkgs.add(pkg);
4619                    it.remove();
4620                }
4621            }
4622            // Give priority to system apps that listen for pre boot complete.
4623            Intent intent = new Intent(Intent.ACTION_PRE_BOOT_COMPLETED);
4624            ArraySet<String> pkgNames = getPackageNamesForIntent(intent);
4625            for (Iterator<PackageParser.Package> it = pkgs.iterator(); it.hasNext();) {
4626                PackageParser.Package pkg = it.next();
4627                if (pkgNames.contains(pkg.packageName)) {
4628                    if (DEBUG_DEXOPT) {
4629                        Log.i(TAG, "Adding pre boot system app " + sortedPkgs.size() + ": " + pkg.packageName);
4630                    }
4631                    sortedPkgs.add(pkg);
4632                    it.remove();
4633                }
4634            }
4635            // Give priority to system apps.
4636            for (Iterator<PackageParser.Package> it = pkgs.iterator(); it.hasNext();) {
4637                PackageParser.Package pkg = it.next();
4638                if (isSystemApp(pkg) && !isUpdatedSystemApp(pkg)) {
4639                    if (DEBUG_DEXOPT) {
4640                        Log.i(TAG, "Adding system app " + sortedPkgs.size() + ": " + pkg.packageName);
4641                    }
4642                    sortedPkgs.add(pkg);
4643                    it.remove();
4644                }
4645            }
4646            // Give priority to updated system apps.
4647            for (Iterator<PackageParser.Package> it = pkgs.iterator(); it.hasNext();) {
4648                PackageParser.Package pkg = it.next();
4649                if (isUpdatedSystemApp(pkg)) {
4650                    if (DEBUG_DEXOPT) {
4651                        Log.i(TAG, "Adding updated system app " + sortedPkgs.size() + ": " + pkg.packageName);
4652                    }
4653                    sortedPkgs.add(pkg);
4654                    it.remove();
4655                }
4656            }
4657            // Give priority to apps that listen for boot complete.
4658            intent = new Intent(Intent.ACTION_BOOT_COMPLETED);
4659            pkgNames = getPackageNamesForIntent(intent);
4660            for (Iterator<PackageParser.Package> it = pkgs.iterator(); it.hasNext();) {
4661                PackageParser.Package pkg = it.next();
4662                if (pkgNames.contains(pkg.packageName)) {
4663                    if (DEBUG_DEXOPT) {
4664                        Log.i(TAG, "Adding boot app " + sortedPkgs.size() + ": " + pkg.packageName);
4665                    }
4666                    sortedPkgs.add(pkg);
4667                    it.remove();
4668                }
4669            }
4670            // Filter out packages that aren't recently used.
4671            filterRecentlyUsedApps(pkgs);
4672            // Add all remaining apps.
4673            for (PackageParser.Package pkg : pkgs) {
4674                if (DEBUG_DEXOPT) {
4675                    Log.i(TAG, "Adding app " + sortedPkgs.size() + ": " + pkg.packageName);
4676                }
4677                sortedPkgs.add(pkg);
4678            }
4679
4680            // If we want to be lazy, filter everything that wasn't recently used.
4681            if (mLazyDexOpt) {
4682                filterRecentlyUsedApps(sortedPkgs);
4683            }
4684
4685            int i = 0;
4686            int total = sortedPkgs.size();
4687            File dataDir = Environment.getDataDirectory();
4688            long lowThreshold = StorageManager.from(mContext).getStorageLowBytes(dataDir);
4689            if (lowThreshold == 0) {
4690                throw new IllegalStateException("Invalid low memory threshold");
4691            }
4692            for (PackageParser.Package pkg : sortedPkgs) {
4693                long usableSpace = dataDir.getUsableSpace();
4694                if (usableSpace < lowThreshold) {
4695                    Log.w(TAG, "Not running dexopt on remaining apps due to low memory: " + usableSpace);
4696                    break;
4697                }
4698                performBootDexOpt(pkg, ++i, total);
4699            }
4700        }
4701    }
4702
4703    private void filterRecentlyUsedApps(Collection<PackageParser.Package> pkgs) {
4704        // Filter out packages that aren't recently used.
4705        //
4706        // The exception is first boot of a non-eng device (aka !mLazyDexOpt), which
4707        // should do a full dexopt.
4708        if (mLazyDexOpt || (!isFirstBoot() && mPackageUsage.isHistoricalPackageUsageAvailable())) {
4709            int total = pkgs.size();
4710            int skipped = 0;
4711            long now = System.currentTimeMillis();
4712            for (Iterator<PackageParser.Package> i = pkgs.iterator(); i.hasNext();) {
4713                PackageParser.Package pkg = i.next();
4714                long then = pkg.mLastPackageUsageTimeInMills;
4715                if (then + mDexOptLRUThresholdInMills < now) {
4716                    if (DEBUG_DEXOPT) {
4717                        Log.i(TAG, "Skipping dexopt of " + pkg.packageName + " last resumed: " +
4718                              ((then == 0) ? "never" : new Date(then)));
4719                    }
4720                    i.remove();
4721                    skipped++;
4722                }
4723            }
4724            if (DEBUG_DEXOPT) {
4725                Log.i(TAG, "Skipped optimizing " + skipped + " of " + total);
4726            }
4727        }
4728    }
4729
4730    private ArraySet<String> getPackageNamesForIntent(Intent intent) {
4731        List<ResolveInfo> ris = null;
4732        try {
4733            ris = AppGlobals.getPackageManager().queryIntentReceivers(
4734                    intent, null, 0, UserHandle.USER_OWNER);
4735        } catch (RemoteException e) {
4736        }
4737        ArraySet<String> pkgNames = new ArraySet<String>();
4738        if (ris != null) {
4739            for (ResolveInfo ri : ris) {
4740                pkgNames.add(ri.activityInfo.packageName);
4741            }
4742        }
4743        return pkgNames;
4744    }
4745
4746    private void performBootDexOpt(PackageParser.Package pkg, int curr, int total) {
4747        if (DEBUG_DEXOPT) {
4748            Log.i(TAG, "Optimizing app " + curr + " of " + total + ": " + pkg.packageName);
4749        }
4750        if (!isFirstBoot()) {
4751            try {
4752                ActivityManagerNative.getDefault().showBootMessage(
4753                        mContext.getResources().getString(R.string.android_upgrading_apk,
4754                                curr, total), true);
4755            } catch (RemoteException e) {
4756            }
4757        }
4758        PackageParser.Package p = pkg;
4759        synchronized (mInstallLock) {
4760            performDexOptLI(p, null /* instruction sets */, false /* force dex */,
4761                            false /* defer */, true /* include dependencies */);
4762        }
4763    }
4764
4765    @Override
4766    public boolean performDexOptIfNeeded(String packageName, String instructionSet) {
4767        return performDexOpt(packageName, instructionSet, false);
4768    }
4769
4770    private static String getPrimaryInstructionSet(ApplicationInfo info) {
4771        if (info.primaryCpuAbi == null) {
4772            return getPreferredInstructionSet();
4773        }
4774
4775        return VMRuntime.getInstructionSet(info.primaryCpuAbi);
4776    }
4777
4778    public boolean performDexOpt(String packageName, String instructionSet, boolean backgroundDexopt) {
4779        boolean dexopt = mLazyDexOpt || backgroundDexopt;
4780        boolean updateUsage = !backgroundDexopt;  // Don't update usage if this is just a backgroundDexopt
4781        if (!dexopt && !updateUsage) {
4782            // We aren't going to dexopt or update usage, so bail early.
4783            return false;
4784        }
4785        PackageParser.Package p;
4786        final String targetInstructionSet;
4787        synchronized (mPackages) {
4788            p = mPackages.get(packageName);
4789            if (p == null) {
4790                return false;
4791            }
4792            if (updateUsage) {
4793                p.mLastPackageUsageTimeInMills = System.currentTimeMillis();
4794            }
4795            mPackageUsage.write(false);
4796            if (!dexopt) {
4797                // We aren't going to dexopt, so bail early.
4798                return false;
4799            }
4800
4801            targetInstructionSet = instructionSet != null ? instructionSet :
4802                    getPrimaryInstructionSet(p.applicationInfo);
4803            if (p.mDexOptPerformed.contains(targetInstructionSet)) {
4804                return false;
4805            }
4806        }
4807
4808        synchronized (mInstallLock) {
4809            final String[] instructionSets = new String[] { targetInstructionSet };
4810            return performDexOptLI(p, instructionSets, false /* force dex */, false /* defer */,
4811                    true /* include dependencies */) == DEX_OPT_PERFORMED;
4812        }
4813    }
4814
4815    public ArraySet<String> getPackagesThatNeedDexOpt() {
4816        ArraySet<String> pkgs = null;
4817        synchronized (mPackages) {
4818            for (PackageParser.Package p : mPackages.values()) {
4819                if (DEBUG_DEXOPT) {
4820                    Log.i(TAG, p.packageName + " mDexOptPerformed=" + p.mDexOptPerformed.toArray());
4821                }
4822                if (!p.mDexOptPerformed.isEmpty()) {
4823                    continue;
4824                }
4825                if (pkgs == null) {
4826                    pkgs = new ArraySet<String>();
4827                }
4828                pkgs.add(p.packageName);
4829            }
4830        }
4831        return pkgs;
4832    }
4833
4834    public void shutdown() {
4835        mPackageUsage.write(true);
4836    }
4837
4838    private void performDexOptLibsLI(ArrayList<String> libs, String[] instructionSets,
4839             boolean forceDex, boolean defer, ArraySet<String> done) {
4840        for (int i=0; i<libs.size(); i++) {
4841            PackageParser.Package libPkg;
4842            String libName;
4843            synchronized (mPackages) {
4844                libName = libs.get(i);
4845                SharedLibraryEntry lib = mSharedLibraries.get(libName);
4846                if (lib != null && lib.apk != null) {
4847                    libPkg = mPackages.get(lib.apk);
4848                } else {
4849                    libPkg = null;
4850                }
4851            }
4852            if (libPkg != null && !done.contains(libName)) {
4853                performDexOptLI(libPkg, instructionSets, forceDex, defer, done);
4854            }
4855        }
4856    }
4857
4858    static final int DEX_OPT_SKIPPED = 0;
4859    static final int DEX_OPT_PERFORMED = 1;
4860    static final int DEX_OPT_DEFERRED = 2;
4861    static final int DEX_OPT_FAILED = -1;
4862
4863    private int performDexOptLI(PackageParser.Package pkg, String[] targetInstructionSets,
4864            boolean forceDex, boolean defer, ArraySet<String> done) {
4865        final String[] instructionSets = targetInstructionSets != null ?
4866                targetInstructionSets : getAppDexInstructionSets(pkg.applicationInfo);
4867
4868        if (done != null) {
4869            done.add(pkg.packageName);
4870            if (pkg.usesLibraries != null) {
4871                performDexOptLibsLI(pkg.usesLibraries, instructionSets, forceDex, defer, done);
4872            }
4873            if (pkg.usesOptionalLibraries != null) {
4874                performDexOptLibsLI(pkg.usesOptionalLibraries, instructionSets, forceDex, defer, done);
4875            }
4876        }
4877
4878        if ((pkg.applicationInfo.flags & ApplicationInfo.FLAG_HAS_CODE) == 0) {
4879            return DEX_OPT_SKIPPED;
4880        }
4881
4882        final boolean vmSafeMode = (pkg.applicationInfo.flags & ApplicationInfo.FLAG_VM_SAFE_MODE) != 0;
4883
4884        final List<String> paths = pkg.getAllCodePathsExcludingResourceOnly();
4885        boolean performedDexOpt = false;
4886        // There are three basic cases here:
4887        // 1.) we need to dexopt, either because we are forced or it is needed
4888        // 2.) we are defering a needed dexopt
4889        // 3.) we are skipping an unneeded dexopt
4890        final String[] dexCodeInstructionSets = getDexCodeInstructionSets(instructionSets);
4891        for (String dexCodeInstructionSet : dexCodeInstructionSets) {
4892            if (!forceDex && pkg.mDexOptPerformed.contains(dexCodeInstructionSet)) {
4893                continue;
4894            }
4895
4896            for (String path : paths) {
4897                try {
4898                    // This will return DEXOPT_NEEDED if we either cannot find any odex file for this
4899                    // patckage or the one we find does not match the image checksum (i.e. it was
4900                    // compiled against an old image). It will return PATCHOAT_NEEDED if we can find a
4901                    // odex file and it matches the checksum of the image but not its base address,
4902                    // meaning we need to move it.
4903                    final byte isDexOptNeeded = DexFile.isDexOptNeededInternal(path,
4904                            pkg.packageName, dexCodeInstructionSet, defer);
4905                    if (forceDex || (!defer && isDexOptNeeded == DexFile.DEXOPT_NEEDED)) {
4906                        Log.i(TAG, "Running dexopt on: " + path + " pkg="
4907                                + pkg.applicationInfo.packageName + " isa=" + dexCodeInstructionSet
4908                                + " vmSafeMode=" + vmSafeMode);
4909                        final int sharedGid = UserHandle.getSharedAppGid(pkg.applicationInfo.uid);
4910                        final int ret = mInstaller.dexopt(path, sharedGid, !isForwardLocked(pkg),
4911                                pkg.packageName, dexCodeInstructionSet, vmSafeMode);
4912
4913                        if (ret < 0) {
4914                            // Don't bother running dexopt again if we failed, it will probably
4915                            // just result in an error again. Also, don't bother dexopting for other
4916                            // paths & ISAs.
4917                            return DEX_OPT_FAILED;
4918                        }
4919
4920                        performedDexOpt = true;
4921                    } else if (!defer && isDexOptNeeded == DexFile.PATCHOAT_NEEDED) {
4922                        Log.i(TAG, "Running patchoat on: " + pkg.applicationInfo.packageName);
4923                        final int sharedGid = UserHandle.getSharedAppGid(pkg.applicationInfo.uid);
4924                        final int ret = mInstaller.patchoat(path, sharedGid, !isForwardLocked(pkg),
4925                                pkg.packageName, dexCodeInstructionSet);
4926
4927                        if (ret < 0) {
4928                            // Don't bother running patchoat again if we failed, it will probably
4929                            // just result in an error again. Also, don't bother dexopting for other
4930                            // paths & ISAs.
4931                            return DEX_OPT_FAILED;
4932                        }
4933
4934                        performedDexOpt = true;
4935                    }
4936
4937                    // We're deciding to defer a needed dexopt. Don't bother dexopting for other
4938                    // paths and instruction sets. We'll deal with them all together when we process
4939                    // our list of deferred dexopts.
4940                    if (defer && isDexOptNeeded != DexFile.UP_TO_DATE) {
4941                        if (mDeferredDexOpt == null) {
4942                            mDeferredDexOpt = new ArraySet<PackageParser.Package>();
4943                        }
4944                        mDeferredDexOpt.add(pkg);
4945                        return DEX_OPT_DEFERRED;
4946                    }
4947                } catch (FileNotFoundException e) {
4948                    Slog.w(TAG, "Apk not found for dexopt: " + path);
4949                    return DEX_OPT_FAILED;
4950                } catch (IOException e) {
4951                    Slog.w(TAG, "IOException reading apk: " + path, e);
4952                    return DEX_OPT_FAILED;
4953                } catch (StaleDexCacheError e) {
4954                    Slog.w(TAG, "StaleDexCacheError when reading apk: " + path, e);
4955                    return DEX_OPT_FAILED;
4956                } catch (Exception e) {
4957                    Slog.w(TAG, "Exception when doing dexopt : ", e);
4958                    return DEX_OPT_FAILED;
4959                }
4960            }
4961
4962            // At this point we haven't failed dexopt and we haven't deferred dexopt. We must
4963            // either have either succeeded dexopt, or have had isDexOptNeededInternal tell us
4964            // it isn't required. We therefore mark that this package doesn't need dexopt unless
4965            // it's forced. performedDexOpt will tell us whether we performed dex-opt or skipped
4966            // it.
4967            pkg.mDexOptPerformed.add(dexCodeInstructionSet);
4968        }
4969
4970        // If we've gotten here, we're sure that no error occurred and that we haven't
4971        // deferred dex-opt. We've either dex-opted one more paths or instruction sets or
4972        // we've skipped all of them because they are up to date. In both cases this
4973        // package doesn't need dexopt any longer.
4974        return performedDexOpt ? DEX_OPT_PERFORMED : DEX_OPT_SKIPPED;
4975    }
4976
4977    private static String[] getAppDexInstructionSets(ApplicationInfo info) {
4978        if (info.primaryCpuAbi != null) {
4979            if (info.secondaryCpuAbi != null) {
4980                return new String[] {
4981                        VMRuntime.getInstructionSet(info.primaryCpuAbi),
4982                        VMRuntime.getInstructionSet(info.secondaryCpuAbi) };
4983            } else {
4984                return new String[] {
4985                        VMRuntime.getInstructionSet(info.primaryCpuAbi) };
4986            }
4987        }
4988
4989        return new String[] { getPreferredInstructionSet() };
4990    }
4991
4992    private static String[] getAppDexInstructionSets(PackageSetting ps) {
4993        if (ps.primaryCpuAbiString != null) {
4994            if (ps.secondaryCpuAbiString != null) {
4995                return new String[] {
4996                        VMRuntime.getInstructionSet(ps.primaryCpuAbiString),
4997                        VMRuntime.getInstructionSet(ps.secondaryCpuAbiString) };
4998            } else {
4999                return new String[] {
5000                        VMRuntime.getInstructionSet(ps.primaryCpuAbiString) };
5001            }
5002        }
5003
5004        return new String[] { getPreferredInstructionSet() };
5005    }
5006
5007    private static String getPreferredInstructionSet() {
5008        if (sPreferredInstructionSet == null) {
5009            sPreferredInstructionSet = VMRuntime.getInstructionSet(Build.SUPPORTED_ABIS[0]);
5010        }
5011
5012        return sPreferredInstructionSet;
5013    }
5014
5015    private static List<String> getAllInstructionSets() {
5016        final String[] allAbis = Build.SUPPORTED_ABIS;
5017        final List<String> allInstructionSets = new ArrayList<String>(allAbis.length);
5018
5019        for (String abi : allAbis) {
5020            final String instructionSet = VMRuntime.getInstructionSet(abi);
5021            if (!allInstructionSets.contains(instructionSet)) {
5022                allInstructionSets.add(instructionSet);
5023            }
5024        }
5025
5026        return allInstructionSets;
5027    }
5028
5029    /**
5030     * Returns the instruction set that should be used to compile dex code. In the presence of
5031     * a native bridge this might be different than the one shared libraries use.
5032     */
5033    private static String getDexCodeInstructionSet(String sharedLibraryIsa) {
5034        String dexCodeIsa = SystemProperties.get("ro.dalvik.vm.isa." + sharedLibraryIsa);
5035        return (dexCodeIsa.isEmpty() ? sharedLibraryIsa : dexCodeIsa);
5036    }
5037
5038    private static String[] getDexCodeInstructionSets(String[] instructionSets) {
5039        ArraySet<String> dexCodeInstructionSets = new ArraySet<String>(instructionSets.length);
5040        for (String instructionSet : instructionSets) {
5041            dexCodeInstructionSets.add(getDexCodeInstructionSet(instructionSet));
5042        }
5043        return dexCodeInstructionSets.toArray(new String[dexCodeInstructionSets.size()]);
5044    }
5045
5046    /**
5047     * Returns deduplicated list of supported instructions for dex code.
5048     */
5049    public static String[] getAllDexCodeInstructionSets() {
5050        String[] supportedInstructionSets = new String[Build.SUPPORTED_ABIS.length];
5051        for (int i = 0; i < supportedInstructionSets.length; i++) {
5052            String abi = Build.SUPPORTED_ABIS[i];
5053            supportedInstructionSets[i] = VMRuntime.getInstructionSet(abi);
5054        }
5055        return getDexCodeInstructionSets(supportedInstructionSets);
5056    }
5057
5058    @Override
5059    public void forceDexOpt(String packageName) {
5060        enforceSystemOrRoot("forceDexOpt");
5061
5062        PackageParser.Package pkg;
5063        synchronized (mPackages) {
5064            pkg = mPackages.get(packageName);
5065            if (pkg == null) {
5066                throw new IllegalArgumentException("Missing package: " + packageName);
5067            }
5068        }
5069
5070        synchronized (mInstallLock) {
5071            final String[] instructionSets = new String[] {
5072                    getPrimaryInstructionSet(pkg.applicationInfo) };
5073            final int res = performDexOptLI(pkg, instructionSets, true, false, true);
5074            if (res != DEX_OPT_PERFORMED) {
5075                throw new IllegalStateException("Failed to dexopt: " + res);
5076            }
5077        }
5078    }
5079
5080    private int performDexOptLI(PackageParser.Package pkg, String[] instructionSets,
5081                                boolean forceDex, boolean defer, boolean inclDependencies) {
5082        ArraySet<String> done;
5083        if (inclDependencies && (pkg.usesLibraries != null || pkg.usesOptionalLibraries != null)) {
5084            done = new ArraySet<String>();
5085            done.add(pkg.packageName);
5086        } else {
5087            done = null;
5088        }
5089        return performDexOptLI(pkg, instructionSets,  forceDex, defer, done);
5090    }
5091
5092    private boolean verifyPackageUpdateLPr(PackageSetting oldPkg, PackageParser.Package newPkg) {
5093        if ((oldPkg.pkgFlags&ApplicationInfo.FLAG_SYSTEM) == 0) {
5094            Slog.w(TAG, "Unable to update from " + oldPkg.name
5095                    + " to " + newPkg.packageName
5096                    + ": old package not in system partition");
5097            return false;
5098        } else if (mPackages.get(oldPkg.name) != null) {
5099            Slog.w(TAG, "Unable to update from " + oldPkg.name
5100                    + " to " + newPkg.packageName
5101                    + ": old package still exists");
5102            return false;
5103        }
5104        return true;
5105    }
5106
5107    File getDataPathForUser(int userId) {
5108        return new File(mUserAppDataDir.getAbsolutePath() + File.separator + userId);
5109    }
5110
5111    private File getDataPathForPackage(String packageName, int userId) {
5112        /*
5113         * Until we fully support multiple users, return the directory we
5114         * previously would have. The PackageManagerTests will need to be
5115         * revised when this is changed back..
5116         */
5117        if (userId == 0) {
5118            return new File(mAppDataDir, packageName);
5119        } else {
5120            return new File(mUserAppDataDir.getAbsolutePath() + File.separator + userId
5121                + File.separator + packageName);
5122        }
5123    }
5124
5125    private int createDataDirsLI(String packageName, int uid, String seinfo) {
5126        int[] users = sUserManager.getUserIds();
5127        int res = mInstaller.install(packageName, uid, uid, seinfo);
5128        if (res < 0) {
5129            return res;
5130        }
5131        for (int user : users) {
5132            if (user != 0) {
5133                res = mInstaller.createUserData(packageName,
5134                        UserHandle.getUid(user, uid), user, seinfo);
5135                if (res < 0) {
5136                    return res;
5137                }
5138            }
5139        }
5140        return res;
5141    }
5142
5143    private int removeDataDirsLI(String packageName) {
5144        int[] users = sUserManager.getUserIds();
5145        int res = 0;
5146        for (int user : users) {
5147            int resInner = mInstaller.remove(packageName, user);
5148            if (resInner < 0) {
5149                res = resInner;
5150            }
5151        }
5152
5153        return res;
5154    }
5155
5156    private int deleteCodeCacheDirsLI(String packageName) {
5157        int[] users = sUserManager.getUserIds();
5158        int res = 0;
5159        for (int user : users) {
5160            int resInner = mInstaller.deleteCodeCacheFiles(packageName, user);
5161            if (resInner < 0) {
5162                res = resInner;
5163            }
5164        }
5165        return res;
5166    }
5167
5168    private void addSharedLibraryLPw(ArraySet<String> usesLibraryFiles, SharedLibraryEntry file,
5169            PackageParser.Package changingLib) {
5170        if (file.path != null) {
5171            usesLibraryFiles.add(file.path);
5172            return;
5173        }
5174        PackageParser.Package p = mPackages.get(file.apk);
5175        if (changingLib != null && changingLib.packageName.equals(file.apk)) {
5176            // If we are doing this while in the middle of updating a library apk,
5177            // then we need to make sure to use that new apk for determining the
5178            // dependencies here.  (We haven't yet finished committing the new apk
5179            // to the package manager state.)
5180            if (p == null || p.packageName.equals(changingLib.packageName)) {
5181                p = changingLib;
5182            }
5183        }
5184        if (p != null) {
5185            usesLibraryFiles.addAll(p.getAllCodePaths());
5186        }
5187    }
5188
5189    private void updateSharedLibrariesLPw(PackageParser.Package pkg,
5190            PackageParser.Package changingLib) throws PackageManagerException {
5191        if (pkg.usesLibraries != null || pkg.usesOptionalLibraries != null) {
5192            final ArraySet<String> usesLibraryFiles = new ArraySet<>();
5193            int N = pkg.usesLibraries != null ? pkg.usesLibraries.size() : 0;
5194            for (int i=0; i<N; i++) {
5195                final SharedLibraryEntry file = mSharedLibraries.get(pkg.usesLibraries.get(i));
5196                if (file == null) {
5197                    throw new PackageManagerException(INSTALL_FAILED_MISSING_SHARED_LIBRARY,
5198                            "Package " + pkg.packageName + " requires unavailable shared library "
5199                            + pkg.usesLibraries.get(i) + "; failing!");
5200                }
5201                addSharedLibraryLPw(usesLibraryFiles, file, changingLib);
5202            }
5203            N = pkg.usesOptionalLibraries != null ? pkg.usesOptionalLibraries.size() : 0;
5204            for (int i=0; i<N; i++) {
5205                final SharedLibraryEntry file = mSharedLibraries.get(pkg.usesOptionalLibraries.get(i));
5206                if (file == null) {
5207                    Slog.w(TAG, "Package " + pkg.packageName
5208                            + " desires unavailable shared library "
5209                            + pkg.usesOptionalLibraries.get(i) + "; ignoring!");
5210                } else {
5211                    addSharedLibraryLPw(usesLibraryFiles, file, changingLib);
5212                }
5213            }
5214            N = usesLibraryFiles.size();
5215            if (N > 0) {
5216                pkg.usesLibraryFiles = usesLibraryFiles.toArray(new String[N]);
5217            } else {
5218                pkg.usesLibraryFiles = null;
5219            }
5220        }
5221    }
5222
5223    private static boolean hasString(List<String> list, List<String> which) {
5224        if (list == null) {
5225            return false;
5226        }
5227        for (int i=list.size()-1; i>=0; i--) {
5228            for (int j=which.size()-1; j>=0; j--) {
5229                if (which.get(j).equals(list.get(i))) {
5230                    return true;
5231                }
5232            }
5233        }
5234        return false;
5235    }
5236
5237    private void updateAllSharedLibrariesLPw() {
5238        for (PackageParser.Package pkg : mPackages.values()) {
5239            try {
5240                updateSharedLibrariesLPw(pkg, null);
5241            } catch (PackageManagerException e) {
5242                Slog.e(TAG, "updateAllSharedLibrariesLPw failed: " + e.getMessage());
5243            }
5244        }
5245    }
5246
5247    private ArrayList<PackageParser.Package> updateAllSharedLibrariesLPw(
5248            PackageParser.Package changingPkg) {
5249        ArrayList<PackageParser.Package> res = null;
5250        for (PackageParser.Package pkg : mPackages.values()) {
5251            if (hasString(pkg.usesLibraries, changingPkg.libraryNames)
5252                    || hasString(pkg.usesOptionalLibraries, changingPkg.libraryNames)) {
5253                if (res == null) {
5254                    res = new ArrayList<PackageParser.Package>();
5255                }
5256                res.add(pkg);
5257                try {
5258                    updateSharedLibrariesLPw(pkg, changingPkg);
5259                } catch (PackageManagerException e) {
5260                    Slog.e(TAG, "updateAllSharedLibrariesLPw failed: " + e.getMessage());
5261                }
5262            }
5263        }
5264        return res;
5265    }
5266
5267    /**
5268     * Derive the value of the {@code cpuAbiOverride} based on the provided
5269     * value and an optional stored value from the package settings.
5270     */
5271    private static String deriveAbiOverride(String abiOverride, PackageSetting settings) {
5272        String cpuAbiOverride = null;
5273
5274        if (NativeLibraryHelper.CLEAR_ABI_OVERRIDE.equals(abiOverride)) {
5275            cpuAbiOverride = null;
5276        } else if (abiOverride != null) {
5277            cpuAbiOverride = abiOverride;
5278        } else if (settings != null) {
5279            cpuAbiOverride = settings.cpuAbiOverrideString;
5280        }
5281
5282        return cpuAbiOverride;
5283    }
5284
5285    private PackageParser.Package scanPackageLI(PackageParser.Package pkg, int parseFlags,
5286            int scanFlags, long currentTime, UserHandle user) throws PackageManagerException {
5287        boolean success = false;
5288        try {
5289            final PackageParser.Package res = scanPackageDirtyLI(pkg, parseFlags, scanFlags,
5290                    currentTime, user);
5291            success = true;
5292            return res;
5293        } finally {
5294            if (!success && (scanFlags & SCAN_DELETE_DATA_ON_FAILURES) != 0) {
5295                removeDataDirsLI(pkg.packageName);
5296            }
5297        }
5298    }
5299
5300    private PackageParser.Package scanPackageDirtyLI(PackageParser.Package pkg, int parseFlags,
5301            int scanFlags, long currentTime, UserHandle user) throws PackageManagerException {
5302        final File scanFile = new File(pkg.codePath);
5303        if (pkg.applicationInfo.getCodePath() == null ||
5304                pkg.applicationInfo.getResourcePath() == null) {
5305            // Bail out. The resource and code paths haven't been set.
5306            throw new PackageManagerException(INSTALL_FAILED_INVALID_APK,
5307                    "Code and resource paths haven't been set correctly");
5308        }
5309
5310        if ((parseFlags&PackageParser.PARSE_IS_SYSTEM) != 0) {
5311            pkg.applicationInfo.flags |= ApplicationInfo.FLAG_SYSTEM;
5312        } else {
5313            // Only allow system apps to be flagged as core apps.
5314            pkg.coreApp = false;
5315        }
5316
5317        if ((parseFlags&PackageParser.PARSE_IS_PRIVILEGED) != 0) {
5318            pkg.applicationInfo.flags |= ApplicationInfo.FLAG_PRIVILEGED;
5319        }
5320
5321        if (mCustomResolverComponentName != null &&
5322                mCustomResolverComponentName.getPackageName().equals(pkg.packageName)) {
5323            setUpCustomResolverActivity(pkg);
5324        }
5325
5326        if (pkg.packageName.equals("android")) {
5327            synchronized (mPackages) {
5328                if (mAndroidApplication != null) {
5329                    Slog.w(TAG, "*************************************************");
5330                    Slog.w(TAG, "Core android package being redefined.  Skipping.");
5331                    Slog.w(TAG, " file=" + scanFile);
5332                    Slog.w(TAG, "*************************************************");
5333                    throw new PackageManagerException(INSTALL_FAILED_DUPLICATE_PACKAGE,
5334                            "Core android package being redefined.  Skipping.");
5335                }
5336
5337                // Set up information for our fall-back user intent resolution activity.
5338                mPlatformPackage = pkg;
5339                pkg.mVersionCode = mSdkVersion;
5340                mAndroidApplication = pkg.applicationInfo;
5341
5342                if (!mResolverReplaced) {
5343                    mResolveActivity.applicationInfo = mAndroidApplication;
5344                    mResolveActivity.name = ResolverActivity.class.getName();
5345                    mResolveActivity.packageName = mAndroidApplication.packageName;
5346                    mResolveActivity.processName = "system:ui";
5347                    mResolveActivity.launchMode = ActivityInfo.LAUNCH_MULTIPLE;
5348                    mResolveActivity.documentLaunchMode = ActivityInfo.DOCUMENT_LAUNCH_NEVER;
5349                    mResolveActivity.flags = ActivityInfo.FLAG_EXCLUDE_FROM_RECENTS;
5350                    mResolveActivity.theme = R.style.Theme_Holo_Dialog_Alert;
5351                    mResolveActivity.exported = true;
5352                    mResolveActivity.enabled = true;
5353                    mResolveInfo.activityInfo = mResolveActivity;
5354                    mResolveInfo.priority = 0;
5355                    mResolveInfo.preferredOrder = 0;
5356                    mResolveInfo.match = 0;
5357                    mResolveComponentName = new ComponentName(
5358                            mAndroidApplication.packageName, mResolveActivity.name);
5359                }
5360            }
5361        }
5362
5363        if (DEBUG_PACKAGE_SCANNING) {
5364            if ((parseFlags & PackageParser.PARSE_CHATTY) != 0)
5365                Log.d(TAG, "Scanning package " + pkg.packageName);
5366        }
5367
5368        if (mPackages.containsKey(pkg.packageName)
5369                || mSharedLibraries.containsKey(pkg.packageName)) {
5370            throw new PackageManagerException(INSTALL_FAILED_DUPLICATE_PACKAGE,
5371                    "Application package " + pkg.packageName
5372                    + " already installed.  Skipping duplicate.");
5373        }
5374
5375        // Initialize package source and resource directories
5376        File destCodeFile = new File(pkg.applicationInfo.getCodePath());
5377        File destResourceFile = new File(pkg.applicationInfo.getResourcePath());
5378
5379        SharedUserSetting suid = null;
5380        PackageSetting pkgSetting = null;
5381
5382        if (!isSystemApp(pkg)) {
5383            // Only system apps can use these features.
5384            pkg.mOriginalPackages = null;
5385            pkg.mRealPackage = null;
5386            pkg.mAdoptPermissions = null;
5387        }
5388
5389        // writer
5390        synchronized (mPackages) {
5391            if (pkg.mSharedUserId != null) {
5392                suid = mSettings.getSharedUserLPw(pkg.mSharedUserId, 0, true);
5393                if (suid == null) {
5394                    throw new PackageManagerException(INSTALL_FAILED_INSUFFICIENT_STORAGE,
5395                            "Creating application package " + pkg.packageName
5396                            + " for shared user failed");
5397                }
5398                if (DEBUG_PACKAGE_SCANNING) {
5399                    if ((parseFlags & PackageParser.PARSE_CHATTY) != 0)
5400                        Log.d(TAG, "Shared UserID " + pkg.mSharedUserId + " (uid=" + suid.userId
5401                                + "): packages=" + suid.packages);
5402                }
5403            }
5404
5405            // Check if we are renaming from an original package name.
5406            PackageSetting origPackage = null;
5407            String realName = null;
5408            if (pkg.mOriginalPackages != null) {
5409                // This package may need to be renamed to a previously
5410                // installed name.  Let's check on that...
5411                final String renamed = mSettings.mRenamedPackages.get(pkg.mRealPackage);
5412                if (pkg.mOriginalPackages.contains(renamed)) {
5413                    // This package had originally been installed as the
5414                    // original name, and we have already taken care of
5415                    // transitioning to the new one.  Just update the new
5416                    // one to continue using the old name.
5417                    realName = pkg.mRealPackage;
5418                    if (!pkg.packageName.equals(renamed)) {
5419                        // Callers into this function may have already taken
5420                        // care of renaming the package; only do it here if
5421                        // it is not already done.
5422                        pkg.setPackageName(renamed);
5423                    }
5424
5425                } else {
5426                    for (int i=pkg.mOriginalPackages.size()-1; i>=0; i--) {
5427                        if ((origPackage = mSettings.peekPackageLPr(
5428                                pkg.mOriginalPackages.get(i))) != null) {
5429                            // We do have the package already installed under its
5430                            // original name...  should we use it?
5431                            if (!verifyPackageUpdateLPr(origPackage, pkg)) {
5432                                // New package is not compatible with original.
5433                                origPackage = null;
5434                                continue;
5435                            } else if (origPackage.sharedUser != null) {
5436                                // Make sure uid is compatible between packages.
5437                                if (!origPackage.sharedUser.name.equals(pkg.mSharedUserId)) {
5438                                    Slog.w(TAG, "Unable to migrate data from " + origPackage.name
5439                                            + " to " + pkg.packageName + ": old uid "
5440                                            + origPackage.sharedUser.name
5441                                            + " differs from " + pkg.mSharedUserId);
5442                                    origPackage = null;
5443                                    continue;
5444                                }
5445                            } else {
5446                                if (DEBUG_UPGRADE) Log.v(TAG, "Renaming new package "
5447                                        + pkg.packageName + " to old name " + origPackage.name);
5448                            }
5449                            break;
5450                        }
5451                    }
5452                }
5453            }
5454
5455            if (mTransferedPackages.contains(pkg.packageName)) {
5456                Slog.w(TAG, "Package " + pkg.packageName
5457                        + " was transferred to another, but its .apk remains");
5458            }
5459
5460            // Just create the setting, don't add it yet. For already existing packages
5461            // the PkgSetting exists already and doesn't have to be created.
5462            pkgSetting = mSettings.getPackageLPw(pkg, origPackage, realName, suid, destCodeFile,
5463                    destResourceFile, pkg.applicationInfo.nativeLibraryRootDir,
5464                    pkg.applicationInfo.primaryCpuAbi,
5465                    pkg.applicationInfo.secondaryCpuAbi,
5466                    pkg.applicationInfo.flags, user, false);
5467            if (pkgSetting == null) {
5468                throw new PackageManagerException(INSTALL_FAILED_INSUFFICIENT_STORAGE,
5469                        "Creating application package " + pkg.packageName + " failed");
5470            }
5471
5472            if (pkgSetting.origPackage != null) {
5473                // If we are first transitioning from an original package,
5474                // fix up the new package's name now.  We need to do this after
5475                // looking up the package under its new name, so getPackageLP
5476                // can take care of fiddling things correctly.
5477                pkg.setPackageName(origPackage.name);
5478
5479                // File a report about this.
5480                String msg = "New package " + pkgSetting.realName
5481                        + " renamed to replace old package " + pkgSetting.name;
5482                reportSettingsProblem(Log.WARN, msg);
5483
5484                // Make a note of it.
5485                mTransferedPackages.add(origPackage.name);
5486
5487                // No longer need to retain this.
5488                pkgSetting.origPackage = null;
5489            }
5490
5491            if (realName != null) {
5492                // Make a note of it.
5493                mTransferedPackages.add(pkg.packageName);
5494            }
5495
5496            if (mSettings.isDisabledSystemPackageLPr(pkg.packageName)) {
5497                pkg.applicationInfo.flags |= ApplicationInfo.FLAG_UPDATED_SYSTEM_APP;
5498            }
5499
5500            if ((parseFlags&PackageParser.PARSE_IS_SYSTEM_DIR) == 0) {
5501                // Check all shared libraries and map to their actual file path.
5502                // We only do this here for apps not on a system dir, because those
5503                // are the only ones that can fail an install due to this.  We
5504                // will take care of the system apps by updating all of their
5505                // library paths after the scan is done.
5506                updateSharedLibrariesLPw(pkg, null);
5507            }
5508
5509            if (mFoundPolicyFile) {
5510                SELinuxMMAC.assignSeinfoValue(pkg);
5511            }
5512
5513            pkg.applicationInfo.uid = pkgSetting.appId;
5514            pkg.mExtras = pkgSetting;
5515            if (!pkgSetting.keySetData.isUsingUpgradeKeySets() || pkgSetting.sharedUser != null) {
5516                try {
5517                    verifySignaturesLP(pkgSetting, pkg);
5518                    // We just determined the app is signed correctly, so bring
5519                    // over the latest parsed certs.
5520                    pkgSetting.signatures.mSignatures = pkg.mSignatures;
5521                } catch (PackageManagerException e) {
5522                    if ((parseFlags & PackageParser.PARSE_IS_SYSTEM_DIR) == 0) {
5523                        throw e;
5524                    }
5525                    // The signature has changed, but this package is in the system
5526                    // image...  let's recover!
5527                    pkgSetting.signatures.mSignatures = pkg.mSignatures;
5528                    // However...  if this package is part of a shared user, but it
5529                    // doesn't match the signature of the shared user, let's fail.
5530                    // What this means is that you can't change the signatures
5531                    // associated with an overall shared user, which doesn't seem all
5532                    // that unreasonable.
5533                    if (pkgSetting.sharedUser != null) {
5534                        if (compareSignatures(pkgSetting.sharedUser.signatures.mSignatures,
5535                                              pkg.mSignatures) != PackageManager.SIGNATURE_MATCH) {
5536                            throw new PackageManagerException(
5537                                    INSTALL_PARSE_FAILED_INCONSISTENT_CERTIFICATES,
5538                                            "Signature mismatch for shared user : "
5539                                            + pkgSetting.sharedUser);
5540                        }
5541                    }
5542                    // File a report about this.
5543                    String msg = "System package " + pkg.packageName
5544                        + " signature changed; retaining data.";
5545                    reportSettingsProblem(Log.WARN, msg);
5546                }
5547            } else {
5548                if (!checkUpgradeKeySetLP(pkgSetting, pkg)) {
5549                    throw new PackageManagerException(INSTALL_FAILED_UPDATE_INCOMPATIBLE, "Package "
5550                            + pkg.packageName + " upgrade keys do not match the "
5551                            + "previously installed version");
5552                } else {
5553                    // We just determined the app is signed correctly, so bring
5554                    // over the latest parsed certs.
5555                    pkgSetting.signatures.mSignatures = pkg.mSignatures;
5556                }
5557            }
5558            // Verify that this new package doesn't have any content providers
5559            // that conflict with existing packages.  Only do this if the
5560            // package isn't already installed, since we don't want to break
5561            // things that are installed.
5562            if ((scanFlags & SCAN_NEW_INSTALL) != 0) {
5563                final int N = pkg.providers.size();
5564                int i;
5565                for (i=0; i<N; i++) {
5566                    PackageParser.Provider p = pkg.providers.get(i);
5567                    if (p.info.authority != null) {
5568                        String names[] = p.info.authority.split(";");
5569                        for (int j = 0; j < names.length; j++) {
5570                            if (mProvidersByAuthority.containsKey(names[j])) {
5571                                PackageParser.Provider other = mProvidersByAuthority.get(names[j]);
5572                                final String otherPackageName =
5573                                        ((other != null && other.getComponentName() != null) ?
5574                                                other.getComponentName().getPackageName() : "?");
5575                                throw new PackageManagerException(
5576                                        INSTALL_FAILED_CONFLICTING_PROVIDER,
5577                                                "Can't install because provider name " + names[j]
5578                                                + " (in package " + pkg.applicationInfo.packageName
5579                                                + ") is already used by " + otherPackageName);
5580                            }
5581                        }
5582                    }
5583                }
5584            }
5585
5586            if (pkg.mAdoptPermissions != null) {
5587                // This package wants to adopt ownership of permissions from
5588                // another package.
5589                for (int i = pkg.mAdoptPermissions.size() - 1; i >= 0; i--) {
5590                    final String origName = pkg.mAdoptPermissions.get(i);
5591                    final PackageSetting orig = mSettings.peekPackageLPr(origName);
5592                    if (orig != null) {
5593                        if (verifyPackageUpdateLPr(orig, pkg)) {
5594                            Slog.i(TAG, "Adopting permissions from " + origName + " to "
5595                                    + pkg.packageName);
5596                            mSettings.transferPermissionsLPw(origName, pkg.packageName);
5597                        }
5598                    }
5599                }
5600            }
5601        }
5602
5603        final String pkgName = pkg.packageName;
5604
5605        final long scanFileTime = scanFile.lastModified();
5606        final boolean forceDex = (scanFlags & SCAN_FORCE_DEX) != 0;
5607        pkg.applicationInfo.processName = fixProcessName(
5608                pkg.applicationInfo.packageName,
5609                pkg.applicationInfo.processName,
5610                pkg.applicationInfo.uid);
5611
5612        File dataPath;
5613        if (mPlatformPackage == pkg) {
5614            // The system package is special.
5615            dataPath = new File(Environment.getDataDirectory(), "system");
5616
5617            pkg.applicationInfo.dataDir = dataPath.getPath();
5618
5619        } else {
5620            // This is a normal package, need to make its data directory.
5621            dataPath = getDataPathForPackage(pkg.packageName, 0);
5622
5623            boolean uidError = false;
5624            if (dataPath.exists()) {
5625                int currentUid = 0;
5626                try {
5627                    StructStat stat = Os.stat(dataPath.getPath());
5628                    currentUid = stat.st_uid;
5629                } catch (ErrnoException e) {
5630                    Slog.e(TAG, "Couldn't stat path " + dataPath.getPath(), e);
5631                }
5632
5633                // If we have mismatched owners for the data path, we have a problem.
5634                if (currentUid != pkg.applicationInfo.uid) {
5635                    boolean recovered = false;
5636                    if (currentUid == 0) {
5637                        // The directory somehow became owned by root.  Wow.
5638                        // This is probably because the system was stopped while
5639                        // installd was in the middle of messing with its libs
5640                        // directory.  Ask installd to fix that.
5641                        int ret = mInstaller.fixUid(pkgName, pkg.applicationInfo.uid,
5642                                pkg.applicationInfo.uid);
5643                        if (ret >= 0) {
5644                            recovered = true;
5645                            String msg = "Package " + pkg.packageName
5646                                    + " unexpectedly changed to uid 0; recovered to " +
5647                                    + pkg.applicationInfo.uid;
5648                            reportSettingsProblem(Log.WARN, msg);
5649                        }
5650                    }
5651                    if (!recovered && ((parseFlags&PackageParser.PARSE_IS_SYSTEM) != 0
5652                            || (scanFlags&SCAN_BOOTING) != 0)) {
5653                        // If this is a system app, we can at least delete its
5654                        // current data so the application will still work.
5655                        int ret = removeDataDirsLI(pkgName);
5656                        if (ret >= 0) {
5657                            // TODO: Kill the processes first
5658                            // Old data gone!
5659                            String prefix = (parseFlags&PackageParser.PARSE_IS_SYSTEM) != 0
5660                                    ? "System package " : "Third party package ";
5661                            String msg = prefix + pkg.packageName
5662                                    + " has changed from uid: "
5663                                    + currentUid + " to "
5664                                    + pkg.applicationInfo.uid + "; old data erased";
5665                            reportSettingsProblem(Log.WARN, msg);
5666                            recovered = true;
5667
5668                            // And now re-install the app.
5669                            ret = createDataDirsLI(pkgName, pkg.applicationInfo.uid,
5670                                                   pkg.applicationInfo.seinfo);
5671                            if (ret == -1) {
5672                                // Ack should not happen!
5673                                msg = prefix + pkg.packageName
5674                                        + " could not have data directory re-created after delete.";
5675                                reportSettingsProblem(Log.WARN, msg);
5676                                throw new PackageManagerException(
5677                                        INSTALL_FAILED_INSUFFICIENT_STORAGE, msg);
5678                            }
5679                        }
5680                        if (!recovered) {
5681                            mHasSystemUidErrors = true;
5682                        }
5683                    } else if (!recovered) {
5684                        // If we allow this install to proceed, we will be broken.
5685                        // Abort, abort!
5686                        throw new PackageManagerException(INSTALL_FAILED_UID_CHANGED,
5687                                "scanPackageLI");
5688                    }
5689                    if (!recovered) {
5690                        pkg.applicationInfo.dataDir = "/mismatched_uid/settings_"
5691                            + pkg.applicationInfo.uid + "/fs_"
5692                            + currentUid;
5693                        pkg.applicationInfo.nativeLibraryDir = pkg.applicationInfo.dataDir;
5694                        pkg.applicationInfo.nativeLibraryRootDir = pkg.applicationInfo.dataDir;
5695                        String msg = "Package " + pkg.packageName
5696                                + " has mismatched uid: "
5697                                + currentUid + " on disk, "
5698                                + pkg.applicationInfo.uid + " in settings";
5699                        // writer
5700                        synchronized (mPackages) {
5701                            mSettings.mReadMessages.append(msg);
5702                            mSettings.mReadMessages.append('\n');
5703                            uidError = true;
5704                            if (!pkgSetting.uidError) {
5705                                reportSettingsProblem(Log.ERROR, msg);
5706                            }
5707                        }
5708                    }
5709                }
5710                pkg.applicationInfo.dataDir = dataPath.getPath();
5711                if (mShouldRestoreconData) {
5712                    Slog.i(TAG, "SELinux relabeling of " + pkg.packageName + " issued.");
5713                    mInstaller.restoreconData(pkg.packageName, pkg.applicationInfo.seinfo,
5714                                pkg.applicationInfo.uid);
5715                }
5716            } else {
5717                if (DEBUG_PACKAGE_SCANNING) {
5718                    if ((parseFlags & PackageParser.PARSE_CHATTY) != 0)
5719                        Log.v(TAG, "Want this data dir: " + dataPath);
5720                }
5721                //invoke installer to do the actual installation
5722                int ret = createDataDirsLI(pkgName, pkg.applicationInfo.uid,
5723                                           pkg.applicationInfo.seinfo);
5724                if (ret < 0) {
5725                    // Error from installer
5726                    throw new PackageManagerException(INSTALL_FAILED_INSUFFICIENT_STORAGE,
5727                            "Unable to create data dirs [errorCode=" + ret + "]");
5728                }
5729
5730                if (dataPath.exists()) {
5731                    pkg.applicationInfo.dataDir = dataPath.getPath();
5732                } else {
5733                    Slog.w(TAG, "Unable to create data directory: " + dataPath);
5734                    pkg.applicationInfo.dataDir = null;
5735                }
5736            }
5737
5738            pkgSetting.uidError = uidError;
5739        }
5740
5741        final String path = scanFile.getPath();
5742        final String codePath = pkg.applicationInfo.getCodePath();
5743        final String cpuAbiOverride = deriveAbiOverride(pkg.cpuAbiOverride, pkgSetting);
5744        if (isSystemApp(pkg) && !isUpdatedSystemApp(pkg)) {
5745            setBundledAppAbisAndRoots(pkg, pkgSetting);
5746
5747            // If we haven't found any native libraries for the app, check if it has
5748            // renderscript code. We'll need to force the app to 32 bit if it has
5749            // renderscript bitcode.
5750            if (pkg.applicationInfo.primaryCpuAbi == null
5751                    && pkg.applicationInfo.secondaryCpuAbi == null
5752                    && Build.SUPPORTED_64_BIT_ABIS.length >  0) {
5753                NativeLibraryHelper.Handle handle = null;
5754                try {
5755                    handle = NativeLibraryHelper.Handle.create(scanFile);
5756                    if (NativeLibraryHelper.hasRenderscriptBitcode(handle)) {
5757                        pkg.applicationInfo.primaryCpuAbi = Build.SUPPORTED_32_BIT_ABIS[0];
5758                    }
5759                } catch (IOException ioe) {
5760                    Slog.w(TAG, "Error scanning system app : " + ioe);
5761                } finally {
5762                    IoUtils.closeQuietly(handle);
5763                }
5764            }
5765
5766            setNativeLibraryPaths(pkg);
5767        } else {
5768            // TODO: We can probably be smarter about this stuff. For installed apps,
5769            // we can calculate this information at install time once and for all. For
5770            // system apps, we can probably assume that this information doesn't change
5771            // after the first boot scan. As things stand, we do lots of unnecessary work.
5772
5773            // Give ourselves some initial paths; we'll come back for another
5774            // pass once we've determined ABI below.
5775            setNativeLibraryPaths(pkg);
5776
5777            final boolean isAsec = isForwardLocked(pkg) || isExternal(pkg);
5778            final String nativeLibraryRootStr = pkg.applicationInfo.nativeLibraryRootDir;
5779            final boolean useIsaSpecificSubdirs = pkg.applicationInfo.nativeLibraryRootRequiresIsa;
5780
5781            NativeLibraryHelper.Handle handle = null;
5782            try {
5783                handle = NativeLibraryHelper.Handle.create(scanFile);
5784                // TODO(multiArch): This can be null for apps that didn't go through the
5785                // usual installation process. We can calculate it again, like we
5786                // do during install time.
5787                //
5788                // TODO(multiArch): Why do we need to rescan ASEC apps again ? It seems totally
5789                // unnecessary.
5790                final File nativeLibraryRoot = new File(nativeLibraryRootStr);
5791
5792                // Null out the abis so that they can be recalculated.
5793                pkg.applicationInfo.primaryCpuAbi = null;
5794                pkg.applicationInfo.secondaryCpuAbi = null;
5795                if (isMultiArch(pkg.applicationInfo)) {
5796                    // Warn if we've set an abiOverride for multi-lib packages..
5797                    // By definition, we need to copy both 32 and 64 bit libraries for
5798                    // such packages.
5799                    if (pkg.cpuAbiOverride != null
5800                            && !NativeLibraryHelper.CLEAR_ABI_OVERRIDE.equals(pkg.cpuAbiOverride)) {
5801                        Slog.w(TAG, "Ignoring abiOverride for multi arch application.");
5802                    }
5803
5804                    int abi32 = PackageManager.NO_NATIVE_LIBRARIES;
5805                    int abi64 = PackageManager.NO_NATIVE_LIBRARIES;
5806                    if (Build.SUPPORTED_32_BIT_ABIS.length > 0) {
5807                        if (isAsec) {
5808                            abi32 = NativeLibraryHelper.findSupportedAbi(handle, Build.SUPPORTED_32_BIT_ABIS);
5809                        } else {
5810                            abi32 = NativeLibraryHelper.copyNativeBinariesForSupportedAbi(handle,
5811                                    nativeLibraryRoot, Build.SUPPORTED_32_BIT_ABIS,
5812                                    useIsaSpecificSubdirs);
5813                        }
5814                    }
5815
5816                    maybeThrowExceptionForMultiArchCopy(
5817                            "Error unpackaging 32 bit native libs for multiarch app.", abi32);
5818
5819                    if (Build.SUPPORTED_64_BIT_ABIS.length > 0) {
5820                        if (isAsec) {
5821                            abi64 = NativeLibraryHelper.findSupportedAbi(handle, Build.SUPPORTED_64_BIT_ABIS);
5822                        } else {
5823                            abi64 = NativeLibraryHelper.copyNativeBinariesForSupportedAbi(handle,
5824                                    nativeLibraryRoot, Build.SUPPORTED_64_BIT_ABIS,
5825                                    useIsaSpecificSubdirs);
5826                        }
5827                    }
5828
5829                    maybeThrowExceptionForMultiArchCopy(
5830                            "Error unpackaging 64 bit native libs for multiarch app.", abi64);
5831
5832                    if (abi64 >= 0) {
5833                        pkg.applicationInfo.primaryCpuAbi = Build.SUPPORTED_64_BIT_ABIS[abi64];
5834                    }
5835
5836                    if (abi32 >= 0) {
5837                        final String abi = Build.SUPPORTED_32_BIT_ABIS[abi32];
5838                        if (abi64 >= 0) {
5839                            pkg.applicationInfo.secondaryCpuAbi = abi;
5840                        } else {
5841                            pkg.applicationInfo.primaryCpuAbi = abi;
5842                        }
5843                    }
5844                } else {
5845                    String[] abiList = (cpuAbiOverride != null) ?
5846                            new String[] { cpuAbiOverride } : Build.SUPPORTED_ABIS;
5847
5848                    // Enable gross and lame hacks for apps that are built with old
5849                    // SDK tools. We must scan their APKs for renderscript bitcode and
5850                    // not launch them if it's present. Don't bother checking on devices
5851                    // that don't have 64 bit support.
5852                    boolean needsRenderScriptOverride = false;
5853                    if (Build.SUPPORTED_64_BIT_ABIS.length > 0 && cpuAbiOverride == null &&
5854                            NativeLibraryHelper.hasRenderscriptBitcode(handle)) {
5855                        abiList = Build.SUPPORTED_32_BIT_ABIS;
5856                        needsRenderScriptOverride = true;
5857                    }
5858
5859                    final int copyRet;
5860                    if (isAsec) {
5861                        copyRet = NativeLibraryHelper.findSupportedAbi(handle, abiList);
5862                    } else {
5863                        copyRet = NativeLibraryHelper.copyNativeBinariesForSupportedAbi(handle,
5864                                nativeLibraryRoot, abiList, useIsaSpecificSubdirs);
5865                    }
5866
5867                    if (copyRet < 0 && copyRet != PackageManager.NO_NATIVE_LIBRARIES) {
5868                        throw new PackageManagerException(INSTALL_FAILED_INTERNAL_ERROR,
5869                                "Error unpackaging native libs for app, errorCode=" + copyRet);
5870                    }
5871
5872                    if (copyRet >= 0) {
5873                        pkg.applicationInfo.primaryCpuAbi = abiList[copyRet];
5874                    } else if (copyRet == PackageManager.NO_NATIVE_LIBRARIES && cpuAbiOverride != null) {
5875                        pkg.applicationInfo.primaryCpuAbi = cpuAbiOverride;
5876                    } else if (needsRenderScriptOverride) {
5877                        pkg.applicationInfo.primaryCpuAbi = abiList[0];
5878                    }
5879                }
5880            } catch (IOException ioe) {
5881                Slog.e(TAG, "Unable to get canonical file " + ioe.toString());
5882            } finally {
5883                IoUtils.closeQuietly(handle);
5884            }
5885
5886            // Now that we've calculated the ABIs and determined if it's an internal app,
5887            // we will go ahead and populate the nativeLibraryPath.
5888            setNativeLibraryPaths(pkg);
5889
5890            if (DEBUG_INSTALL) Slog.i(TAG, "Linking native library dir for " + path);
5891            final int[] userIds = sUserManager.getUserIds();
5892            synchronized (mInstallLock) {
5893                // Create a native library symlink only if we have native libraries
5894                // and if the native libraries are 32 bit libraries. We do not provide
5895                // this symlink for 64 bit libraries.
5896                if (pkg.applicationInfo.primaryCpuAbi != null &&
5897                        !VMRuntime.is64BitAbi(pkg.applicationInfo.primaryCpuAbi)) {
5898                    final String nativeLibPath = pkg.applicationInfo.nativeLibraryDir;
5899                    for (int userId : userIds) {
5900                        if (mInstaller.linkNativeLibraryDirectory(pkg.packageName, nativeLibPath, userId) < 0) {
5901                            throw new PackageManagerException(INSTALL_FAILED_INTERNAL_ERROR,
5902                                    "Failed linking native library dir (user=" + userId + ")");
5903                        }
5904                    }
5905                }
5906            }
5907        }
5908
5909        // This is a special case for the "system" package, where the ABI is
5910        // dictated by the zygote configuration (and init.rc). We should keep track
5911        // of this ABI so that we can deal with "normal" applications that run under
5912        // the same UID correctly.
5913        if (mPlatformPackage == pkg) {
5914            pkg.applicationInfo.primaryCpuAbi = VMRuntime.getRuntime().is64Bit() ?
5915                    Build.SUPPORTED_64_BIT_ABIS[0] : Build.SUPPORTED_32_BIT_ABIS[0];
5916        }
5917
5918        pkgSetting.primaryCpuAbiString = pkg.applicationInfo.primaryCpuAbi;
5919        pkgSetting.secondaryCpuAbiString = pkg.applicationInfo.secondaryCpuAbi;
5920        pkgSetting.cpuAbiOverrideString = cpuAbiOverride;
5921        // Copy the derived override back to the parsed package, so that we can
5922        // update the package settings accordingly.
5923        pkg.cpuAbiOverride = cpuAbiOverride;
5924
5925        if (DEBUG_ABI_SELECTION) {
5926            Slog.d(TAG, "Resolved nativeLibraryRoot for " + pkg.applicationInfo.packageName
5927                    + " to root=" + pkg.applicationInfo.nativeLibraryRootDir + ", isa="
5928                    + pkg.applicationInfo.nativeLibraryRootRequiresIsa);
5929        }
5930
5931        // Push the derived path down into PackageSettings so we know what to
5932        // clean up at uninstall time.
5933        pkgSetting.legacyNativeLibraryPathString = pkg.applicationInfo.nativeLibraryRootDir;
5934
5935        if (DEBUG_ABI_SELECTION) {
5936            Log.d(TAG, "Abis for package[" + pkg.packageName + "] are" +
5937                    " primary=" + pkg.applicationInfo.primaryCpuAbi +
5938                    " secondary=" + pkg.applicationInfo.secondaryCpuAbi);
5939        }
5940
5941        if ((scanFlags&SCAN_BOOTING) == 0 && pkgSetting.sharedUser != null) {
5942            // We don't do this here during boot because we can do it all
5943            // at once after scanning all existing packages.
5944            //
5945            // We also do this *before* we perform dexopt on this package, so that
5946            // we can avoid redundant dexopts, and also to make sure we've got the
5947            // code and package path correct.
5948            adjustCpuAbisForSharedUserLPw(pkgSetting.sharedUser.packages,
5949                    pkg, forceDex, (scanFlags & SCAN_DEFER_DEX) != 0);
5950        }
5951
5952        if ((scanFlags & SCAN_NO_DEX) == 0) {
5953            if (performDexOptLI(pkg, null /* instruction sets */, forceDex,
5954                    (scanFlags & SCAN_DEFER_DEX) != 0, false) == DEX_OPT_FAILED) {
5955                throw new PackageManagerException(INSTALL_FAILED_DEXOPT, "scanPackageLI");
5956            }
5957        }
5958
5959        if (mFactoryTest && pkg.requestedPermissions.contains(
5960                android.Manifest.permission.FACTORY_TEST)) {
5961            pkg.applicationInfo.flags |= ApplicationInfo.FLAG_FACTORY_TEST;
5962        }
5963
5964        ArrayList<PackageParser.Package> clientLibPkgs = null;
5965
5966        // writer
5967        synchronized (mPackages) {
5968            if ((pkg.applicationInfo.flags&ApplicationInfo.FLAG_SYSTEM) != 0) {
5969                // Only system apps can add new shared libraries.
5970                if (pkg.libraryNames != null) {
5971                    for (int i=0; i<pkg.libraryNames.size(); i++) {
5972                        String name = pkg.libraryNames.get(i);
5973                        boolean allowed = false;
5974                        if (isUpdatedSystemApp(pkg)) {
5975                            // New library entries can only be added through the
5976                            // system image.  This is important to get rid of a lot
5977                            // of nasty edge cases: for example if we allowed a non-
5978                            // system update of the app to add a library, then uninstalling
5979                            // the update would make the library go away, and assumptions
5980                            // we made such as through app install filtering would now
5981                            // have allowed apps on the device which aren't compatible
5982                            // with it.  Better to just have the restriction here, be
5983                            // conservative, and create many fewer cases that can negatively
5984                            // impact the user experience.
5985                            final PackageSetting sysPs = mSettings
5986                                    .getDisabledSystemPkgLPr(pkg.packageName);
5987                            if (sysPs.pkg != null && sysPs.pkg.libraryNames != null) {
5988                                for (int j=0; j<sysPs.pkg.libraryNames.size(); j++) {
5989                                    if (name.equals(sysPs.pkg.libraryNames.get(j))) {
5990                                        allowed = true;
5991                                        allowed = true;
5992                                        break;
5993                                    }
5994                                }
5995                            }
5996                        } else {
5997                            allowed = true;
5998                        }
5999                        if (allowed) {
6000                            if (!mSharedLibraries.containsKey(name)) {
6001                                mSharedLibraries.put(name, new SharedLibraryEntry(null, pkg.packageName));
6002                            } else if (!name.equals(pkg.packageName)) {
6003                                Slog.w(TAG, "Package " + pkg.packageName + " library "
6004                                        + name + " already exists; skipping");
6005                            }
6006                        } else {
6007                            Slog.w(TAG, "Package " + pkg.packageName + " declares lib "
6008                                    + name + " that is not declared on system image; skipping");
6009                        }
6010                    }
6011                    if ((scanFlags&SCAN_BOOTING) == 0) {
6012                        // If we are not booting, we need to update any applications
6013                        // that are clients of our shared library.  If we are booting,
6014                        // this will all be done once the scan is complete.
6015                        clientLibPkgs = updateAllSharedLibrariesLPw(pkg);
6016                    }
6017                }
6018            }
6019        }
6020
6021        // We also need to dexopt any apps that are dependent on this library.  Note that
6022        // if these fail, we should abort the install since installing the library will
6023        // result in some apps being broken.
6024        if (clientLibPkgs != null) {
6025            if ((scanFlags & SCAN_NO_DEX) == 0) {
6026                for (int i = 0; i < clientLibPkgs.size(); i++) {
6027                    PackageParser.Package clientPkg = clientLibPkgs.get(i);
6028                    if (performDexOptLI(clientPkg, null /* instruction sets */, forceDex,
6029                            (scanFlags & SCAN_DEFER_DEX) != 0, false) == DEX_OPT_FAILED) {
6030                        throw new PackageManagerException(INSTALL_FAILED_DEXOPT,
6031                                "scanPackageLI failed to dexopt clientLibPkgs");
6032                    }
6033                }
6034            }
6035        }
6036
6037        // Request the ActivityManager to kill the process(only for existing packages)
6038        // so that we do not end up in a confused state while the user is still using the older
6039        // version of the application while the new one gets installed.
6040        if ((scanFlags & SCAN_REPLACING) != 0) {
6041            killApplication(pkg.applicationInfo.packageName,
6042                        pkg.applicationInfo.uid, "update pkg");
6043        }
6044
6045        // Also need to kill any apps that are dependent on the library.
6046        if (clientLibPkgs != null) {
6047            for (int i=0; i<clientLibPkgs.size(); i++) {
6048                PackageParser.Package clientPkg = clientLibPkgs.get(i);
6049                killApplication(clientPkg.applicationInfo.packageName,
6050                        clientPkg.applicationInfo.uid, "update lib");
6051            }
6052        }
6053
6054        // writer
6055        synchronized (mPackages) {
6056            // We don't expect installation to fail beyond this point
6057
6058            // Add the new setting to mSettings
6059            mSettings.insertPackageSettingLPw(pkgSetting, pkg);
6060            // Add the new setting to mPackages
6061            mPackages.put(pkg.applicationInfo.packageName, pkg);
6062            // Make sure we don't accidentally delete its data.
6063            final Iterator<PackageCleanItem> iter = mSettings.mPackagesToBeCleaned.iterator();
6064            while (iter.hasNext()) {
6065                PackageCleanItem item = iter.next();
6066                if (pkgName.equals(item.packageName)) {
6067                    iter.remove();
6068                }
6069            }
6070
6071            // Take care of first install / last update times.
6072            if (currentTime != 0) {
6073                if (pkgSetting.firstInstallTime == 0) {
6074                    pkgSetting.firstInstallTime = pkgSetting.lastUpdateTime = currentTime;
6075                } else if ((scanFlags&SCAN_UPDATE_TIME) != 0) {
6076                    pkgSetting.lastUpdateTime = currentTime;
6077                }
6078            } else if (pkgSetting.firstInstallTime == 0) {
6079                // We need *something*.  Take time time stamp of the file.
6080                pkgSetting.firstInstallTime = pkgSetting.lastUpdateTime = scanFileTime;
6081            } else if ((parseFlags&PackageParser.PARSE_IS_SYSTEM_DIR) != 0) {
6082                if (scanFileTime != pkgSetting.timeStamp) {
6083                    // A package on the system image has changed; consider this
6084                    // to be an update.
6085                    pkgSetting.lastUpdateTime = scanFileTime;
6086                }
6087            }
6088
6089            // Add the package's KeySets to the global KeySetManagerService
6090            KeySetManagerService ksms = mSettings.mKeySetManagerService;
6091            try {
6092                // Old KeySetData no longer valid.
6093                ksms.removeAppKeySetDataLPw(pkg.packageName);
6094                ksms.addSigningKeySetToPackageLPw(pkg.packageName, pkg.mSigningKeys);
6095                if (pkg.mKeySetMapping != null) {
6096                    for (Map.Entry<String, ArraySet<PublicKey>> entry :
6097                            pkg.mKeySetMapping.entrySet()) {
6098                        if (entry.getValue() != null) {
6099                            ksms.addDefinedKeySetToPackageLPw(pkg.packageName,
6100                                                          entry.getValue(), entry.getKey());
6101                        }
6102                    }
6103                    if (pkg.mUpgradeKeySets != null) {
6104                        for (String upgradeAlias : pkg.mUpgradeKeySets) {
6105                            ksms.addUpgradeKeySetToPackageLPw(pkg.packageName, upgradeAlias);
6106                        }
6107                    }
6108                }
6109            } catch (NullPointerException e) {
6110                Slog.e(TAG, "Could not add KeySet to " + pkg.packageName, e);
6111            } catch (IllegalArgumentException e) {
6112                Slog.e(TAG, "Could not add KeySet to malformed package" + pkg.packageName, e);
6113            }
6114
6115            int N = pkg.providers.size();
6116            StringBuilder r = null;
6117            int i;
6118            for (i=0; i<N; i++) {
6119                PackageParser.Provider p = pkg.providers.get(i);
6120                p.info.processName = fixProcessName(pkg.applicationInfo.processName,
6121                        p.info.processName, pkg.applicationInfo.uid);
6122                mProviders.addProvider(p);
6123                p.syncable = p.info.isSyncable;
6124                if (p.info.authority != null) {
6125                    String names[] = p.info.authority.split(";");
6126                    p.info.authority = null;
6127                    for (int j = 0; j < names.length; j++) {
6128                        if (j == 1 && p.syncable) {
6129                            // We only want the first authority for a provider to possibly be
6130                            // syncable, so if we already added this provider using a different
6131                            // authority clear the syncable flag. We copy the provider before
6132                            // changing it because the mProviders object contains a reference
6133                            // to a provider that we don't want to change.
6134                            // Only do this for the second authority since the resulting provider
6135                            // object can be the same for all future authorities for this provider.
6136                            p = new PackageParser.Provider(p);
6137                            p.syncable = false;
6138                        }
6139                        if (!mProvidersByAuthority.containsKey(names[j])) {
6140                            mProvidersByAuthority.put(names[j], p);
6141                            if (p.info.authority == null) {
6142                                p.info.authority = names[j];
6143                            } else {
6144                                p.info.authority = p.info.authority + ";" + names[j];
6145                            }
6146                            if (DEBUG_PACKAGE_SCANNING) {
6147                                if ((parseFlags & PackageParser.PARSE_CHATTY) != 0)
6148                                    Log.d(TAG, "Registered content provider: " + names[j]
6149                                            + ", className = " + p.info.name + ", isSyncable = "
6150                                            + p.info.isSyncable);
6151                            }
6152                        } else {
6153                            PackageParser.Provider other = mProvidersByAuthority.get(names[j]);
6154                            Slog.w(TAG, "Skipping provider name " + names[j] +
6155                                    " (in package " + pkg.applicationInfo.packageName +
6156                                    "): name already used by "
6157                                    + ((other != null && other.getComponentName() != null)
6158                                            ? other.getComponentName().getPackageName() : "?"));
6159                        }
6160                    }
6161                }
6162                if ((parseFlags&PackageParser.PARSE_CHATTY) != 0) {
6163                    if (r == null) {
6164                        r = new StringBuilder(256);
6165                    } else {
6166                        r.append(' ');
6167                    }
6168                    r.append(p.info.name);
6169                }
6170            }
6171            if (r != null) {
6172                if (DEBUG_PACKAGE_SCANNING) Log.d(TAG, "  Providers: " + r);
6173            }
6174
6175            N = pkg.services.size();
6176            r = null;
6177            for (i=0; i<N; i++) {
6178                PackageParser.Service s = pkg.services.get(i);
6179                s.info.processName = fixProcessName(pkg.applicationInfo.processName,
6180                        s.info.processName, pkg.applicationInfo.uid);
6181                mServices.addService(s);
6182                if ((parseFlags&PackageParser.PARSE_CHATTY) != 0) {
6183                    if (r == null) {
6184                        r = new StringBuilder(256);
6185                    } else {
6186                        r.append(' ');
6187                    }
6188                    r.append(s.info.name);
6189                }
6190            }
6191            if (r != null) {
6192                if (DEBUG_PACKAGE_SCANNING) Log.d(TAG, "  Services: " + r);
6193            }
6194
6195            N = pkg.receivers.size();
6196            r = null;
6197            for (i=0; i<N; i++) {
6198                PackageParser.Activity a = pkg.receivers.get(i);
6199                a.info.processName = fixProcessName(pkg.applicationInfo.processName,
6200                        a.info.processName, pkg.applicationInfo.uid);
6201                mReceivers.addActivity(a, "receiver");
6202                if ((parseFlags&PackageParser.PARSE_CHATTY) != 0) {
6203                    if (r == null) {
6204                        r = new StringBuilder(256);
6205                    } else {
6206                        r.append(' ');
6207                    }
6208                    r.append(a.info.name);
6209                }
6210            }
6211            if (r != null) {
6212                if (DEBUG_PACKAGE_SCANNING) Log.d(TAG, "  Receivers: " + r);
6213            }
6214
6215            N = pkg.activities.size();
6216            r = null;
6217            for (i=0; i<N; i++) {
6218                PackageParser.Activity a = pkg.activities.get(i);
6219                a.info.processName = fixProcessName(pkg.applicationInfo.processName,
6220                        a.info.processName, pkg.applicationInfo.uid);
6221                mActivities.addActivity(a, "activity");
6222                if ((parseFlags&PackageParser.PARSE_CHATTY) != 0) {
6223                    if (r == null) {
6224                        r = new StringBuilder(256);
6225                    } else {
6226                        r.append(' ');
6227                    }
6228                    r.append(a.info.name);
6229                }
6230            }
6231            if (r != null) {
6232                if (DEBUG_PACKAGE_SCANNING) Log.d(TAG, "  Activities: " + r);
6233            }
6234
6235            N = pkg.permissionGroups.size();
6236            r = null;
6237            for (i=0; i<N; i++) {
6238                PackageParser.PermissionGroup pg = pkg.permissionGroups.get(i);
6239                PackageParser.PermissionGroup cur = mPermissionGroups.get(pg.info.name);
6240                if (cur == null) {
6241                    mPermissionGroups.put(pg.info.name, pg);
6242                    if ((parseFlags&PackageParser.PARSE_CHATTY) != 0) {
6243                        if (r == null) {
6244                            r = new StringBuilder(256);
6245                        } else {
6246                            r.append(' ');
6247                        }
6248                        r.append(pg.info.name);
6249                    }
6250                } else {
6251                    Slog.w(TAG, "Permission group " + pg.info.name + " from package "
6252                            + pg.info.packageName + " ignored: original from "
6253                            + cur.info.packageName);
6254                    if ((parseFlags&PackageParser.PARSE_CHATTY) != 0) {
6255                        if (r == null) {
6256                            r = new StringBuilder(256);
6257                        } else {
6258                            r.append(' ');
6259                        }
6260                        r.append("DUP:");
6261                        r.append(pg.info.name);
6262                    }
6263                }
6264            }
6265            if (r != null) {
6266                if (DEBUG_PACKAGE_SCANNING) Log.d(TAG, "  Permission Groups: " + r);
6267            }
6268
6269            N = pkg.permissions.size();
6270            r = null;
6271            for (i=0; i<N; i++) {
6272                PackageParser.Permission p = pkg.permissions.get(i);
6273                ArrayMap<String, BasePermission> permissionMap =
6274                        p.tree ? mSettings.mPermissionTrees
6275                        : mSettings.mPermissions;
6276                p.group = mPermissionGroups.get(p.info.group);
6277                if (p.info.group == null || p.group != null) {
6278                    BasePermission bp = permissionMap.get(p.info.name);
6279
6280                    // Allow system apps to redefine non-system permissions
6281                    if (bp != null && !Objects.equals(bp.sourcePackage, p.info.packageName)) {
6282                        final boolean currentOwnerIsSystem = (bp.perm != null
6283                                && isSystemApp(bp.perm.owner));
6284                        if (isSystemApp(p.owner)) {
6285                            if (bp.type == BasePermission.TYPE_BUILTIN && bp.perm == null) {
6286                                // It's a built-in permission and no owner, take ownership now
6287                                bp.packageSetting = pkgSetting;
6288                                bp.perm = p;
6289                                bp.uid = pkg.applicationInfo.uid;
6290                                bp.sourcePackage = p.info.packageName;
6291                            } else if (!currentOwnerIsSystem) {
6292                                String msg = "New decl " + p.owner + " of permission  "
6293                                        + p.info.name + " is system; overriding " + bp.sourcePackage;
6294                                reportSettingsProblem(Log.WARN, msg);
6295                                bp = null;
6296                            }
6297                        }
6298                    }
6299
6300                    if (bp == null) {
6301                        bp = new BasePermission(p.info.name, p.info.packageName,
6302                                BasePermission.TYPE_NORMAL);
6303                        permissionMap.put(p.info.name, bp);
6304                    }
6305
6306                    if (bp.perm == null) {
6307                        if (bp.sourcePackage == null
6308                                || bp.sourcePackage.equals(p.info.packageName)) {
6309                            BasePermission tree = findPermissionTreeLP(p.info.name);
6310                            if (tree == null
6311                                    || tree.sourcePackage.equals(p.info.packageName)) {
6312                                bp.packageSetting = pkgSetting;
6313                                bp.perm = p;
6314                                bp.uid = pkg.applicationInfo.uid;
6315                                bp.sourcePackage = p.info.packageName;
6316                                if ((parseFlags&PackageParser.PARSE_CHATTY) != 0) {
6317                                    if (r == null) {
6318                                        r = new StringBuilder(256);
6319                                    } else {
6320                                        r.append(' ');
6321                                    }
6322                                    r.append(p.info.name);
6323                                }
6324                            } else {
6325                                Slog.w(TAG, "Permission " + p.info.name + " from package "
6326                                        + p.info.packageName + " ignored: base tree "
6327                                        + tree.name + " is from package "
6328                                        + tree.sourcePackage);
6329                            }
6330                        } else {
6331                            Slog.w(TAG, "Permission " + p.info.name + " from package "
6332                                    + p.info.packageName + " ignored: original from "
6333                                    + bp.sourcePackage);
6334                        }
6335                    } else if ((parseFlags&PackageParser.PARSE_CHATTY) != 0) {
6336                        if (r == null) {
6337                            r = new StringBuilder(256);
6338                        } else {
6339                            r.append(' ');
6340                        }
6341                        r.append("DUP:");
6342                        r.append(p.info.name);
6343                    }
6344                    if (bp.perm == p) {
6345                        bp.protectionLevel = p.info.protectionLevel;
6346                    }
6347                } else {
6348                    Slog.w(TAG, "Permission " + p.info.name + " from package "
6349                            + p.info.packageName + " ignored: no group "
6350                            + p.group);
6351                }
6352            }
6353            if (r != null) {
6354                if (DEBUG_PACKAGE_SCANNING) Log.d(TAG, "  Permissions: " + r);
6355            }
6356
6357            N = pkg.instrumentation.size();
6358            r = null;
6359            for (i=0; i<N; i++) {
6360                PackageParser.Instrumentation a = pkg.instrumentation.get(i);
6361                a.info.packageName = pkg.applicationInfo.packageName;
6362                a.info.sourceDir = pkg.applicationInfo.sourceDir;
6363                a.info.publicSourceDir = pkg.applicationInfo.publicSourceDir;
6364                a.info.splitSourceDirs = pkg.applicationInfo.splitSourceDirs;
6365                a.info.splitPublicSourceDirs = pkg.applicationInfo.splitPublicSourceDirs;
6366                a.info.dataDir = pkg.applicationInfo.dataDir;
6367
6368                // TODO: Update instrumentation.nativeLibraryDir as well ? Does it
6369                // need other information about the application, like the ABI and what not ?
6370                a.info.nativeLibraryDir = pkg.applicationInfo.nativeLibraryDir;
6371                mInstrumentation.put(a.getComponentName(), a);
6372                if ((parseFlags&PackageParser.PARSE_CHATTY) != 0) {
6373                    if (r == null) {
6374                        r = new StringBuilder(256);
6375                    } else {
6376                        r.append(' ');
6377                    }
6378                    r.append(a.info.name);
6379                }
6380            }
6381            if (r != null) {
6382                if (DEBUG_PACKAGE_SCANNING) Log.d(TAG, "  Instrumentation: " + r);
6383            }
6384
6385            if (pkg.protectedBroadcasts != null) {
6386                N = pkg.protectedBroadcasts.size();
6387                for (i=0; i<N; i++) {
6388                    mProtectedBroadcasts.add(pkg.protectedBroadcasts.get(i));
6389                }
6390            }
6391
6392            pkgSetting.setTimeStamp(scanFileTime);
6393
6394            // Create idmap files for pairs of (packages, overlay packages).
6395            // Note: "android", ie framework-res.apk, is handled by native layers.
6396            if (pkg.mOverlayTarget != null) {
6397                // This is an overlay package.
6398                if (pkg.mOverlayTarget != null && !pkg.mOverlayTarget.equals("android")) {
6399                    if (!mOverlays.containsKey(pkg.mOverlayTarget)) {
6400                        mOverlays.put(pkg.mOverlayTarget,
6401                                new ArrayMap<String, PackageParser.Package>());
6402                    }
6403                    ArrayMap<String, PackageParser.Package> map = mOverlays.get(pkg.mOverlayTarget);
6404                    map.put(pkg.packageName, pkg);
6405                    PackageParser.Package orig = mPackages.get(pkg.mOverlayTarget);
6406                    if (orig != null && !createIdmapForPackagePairLI(orig, pkg)) {
6407                        throw new PackageManagerException(INSTALL_FAILED_UPDATE_INCOMPATIBLE,
6408                                "scanPackageLI failed to createIdmap");
6409                    }
6410                }
6411            } else if (mOverlays.containsKey(pkg.packageName) &&
6412                    !pkg.packageName.equals("android")) {
6413                // This is a regular package, with one or more known overlay packages.
6414                createIdmapsForPackageLI(pkg);
6415            }
6416        }
6417
6418        return pkg;
6419    }
6420
6421    /**
6422     * Adjusts ABIs for a set of packages belonging to a shared user so that they all match.
6423     * i.e, so that all packages can be run inside a single process if required.
6424     *
6425     * Optionally, callers can pass in a parsed package via {@code newPackage} in which case
6426     * this function will either try and make the ABI for all packages in {@code packagesForUser}
6427     * match {@code scannedPackage} or will update the ABI of {@code scannedPackage} to match
6428     * the ABI selected for {@code packagesForUser}. This variant is used when installing or
6429     * updating a package that belongs to a shared user.
6430     *
6431     * NOTE: We currently only match for the primary CPU abi string. Matching the secondary
6432     * adds unnecessary complexity.
6433     */
6434    private void adjustCpuAbisForSharedUserLPw(Set<PackageSetting> packagesForUser,
6435            PackageParser.Package scannedPackage, boolean forceDexOpt, boolean deferDexOpt) {
6436        String requiredInstructionSet = null;
6437        if (scannedPackage != null && scannedPackage.applicationInfo.primaryCpuAbi != null) {
6438            requiredInstructionSet = VMRuntime.getInstructionSet(
6439                     scannedPackage.applicationInfo.primaryCpuAbi);
6440        }
6441
6442        PackageSetting requirer = null;
6443        for (PackageSetting ps : packagesForUser) {
6444            // If packagesForUser contains scannedPackage, we skip it. This will happen
6445            // when scannedPackage is an update of an existing package. Without this check,
6446            // we will never be able to change the ABI of any package belonging to a shared
6447            // user, even if it's compatible with other packages.
6448            if (scannedPackage == null || !scannedPackage.packageName.equals(ps.name)) {
6449                if (ps.primaryCpuAbiString == null) {
6450                    continue;
6451                }
6452
6453                final String instructionSet = VMRuntime.getInstructionSet(ps.primaryCpuAbiString);
6454                if (requiredInstructionSet != null && !instructionSet.equals(requiredInstructionSet)) {
6455                    // We have a mismatch between instruction sets (say arm vs arm64) warn about
6456                    // this but there's not much we can do.
6457                    String errorMessage = "Instruction set mismatch, "
6458                            + ((requirer == null) ? "[caller]" : requirer)
6459                            + " requires " + requiredInstructionSet + " whereas " + ps
6460                            + " requires " + instructionSet;
6461                    Slog.w(TAG, errorMessage);
6462                }
6463
6464                if (requiredInstructionSet == null) {
6465                    requiredInstructionSet = instructionSet;
6466                    requirer = ps;
6467                }
6468            }
6469        }
6470
6471        if (requiredInstructionSet != null) {
6472            String adjustedAbi;
6473            if (requirer != null) {
6474                // requirer != null implies that either scannedPackage was null or that scannedPackage
6475                // did not require an ABI, in which case we have to adjust scannedPackage to match
6476                // the ABI of the set (which is the same as requirer's ABI)
6477                adjustedAbi = requirer.primaryCpuAbiString;
6478                if (scannedPackage != null) {
6479                    scannedPackage.applicationInfo.primaryCpuAbi = adjustedAbi;
6480                }
6481            } else {
6482                // requirer == null implies that we're updating all ABIs in the set to
6483                // match scannedPackage.
6484                adjustedAbi =  scannedPackage.applicationInfo.primaryCpuAbi;
6485            }
6486
6487            for (PackageSetting ps : packagesForUser) {
6488                if (scannedPackage == null || !scannedPackage.packageName.equals(ps.name)) {
6489                    if (ps.primaryCpuAbiString != null) {
6490                        continue;
6491                    }
6492
6493                    ps.primaryCpuAbiString = adjustedAbi;
6494                    if (ps.pkg != null && ps.pkg.applicationInfo != null) {
6495                        ps.pkg.applicationInfo.primaryCpuAbi = adjustedAbi;
6496                        Slog.i(TAG, "Adjusting ABI for : " + ps.name + " to " + adjustedAbi);
6497
6498                        if (performDexOptLI(ps.pkg, null /* instruction sets */, forceDexOpt,
6499                                deferDexOpt, true) == DEX_OPT_FAILED) {
6500                            ps.primaryCpuAbiString = null;
6501                            ps.pkg.applicationInfo.primaryCpuAbi = null;
6502                            return;
6503                        } else {
6504                            mInstaller.rmdex(ps.codePathString,
6505                                             getDexCodeInstructionSet(getPreferredInstructionSet()));
6506                        }
6507                    }
6508                }
6509            }
6510        }
6511    }
6512
6513    private void setUpCustomResolverActivity(PackageParser.Package pkg) {
6514        synchronized (mPackages) {
6515            mResolverReplaced = true;
6516            // Set up information for custom user intent resolution activity.
6517            mResolveActivity.applicationInfo = pkg.applicationInfo;
6518            mResolveActivity.name = mCustomResolverComponentName.getClassName();
6519            mResolveActivity.packageName = pkg.applicationInfo.packageName;
6520            mResolveActivity.processName = pkg.applicationInfo.packageName;
6521            mResolveActivity.launchMode = ActivityInfo.LAUNCH_MULTIPLE;
6522            mResolveActivity.flags = ActivityInfo.FLAG_EXCLUDE_FROM_RECENTS |
6523                    ActivityInfo.FLAG_FINISH_ON_CLOSE_SYSTEM_DIALOGS;
6524            mResolveActivity.theme = 0;
6525            mResolveActivity.exported = true;
6526            mResolveActivity.enabled = true;
6527            mResolveInfo.activityInfo = mResolveActivity;
6528            mResolveInfo.priority = 0;
6529            mResolveInfo.preferredOrder = 0;
6530            mResolveInfo.match = 0;
6531            mResolveComponentName = mCustomResolverComponentName;
6532            Slog.i(TAG, "Replacing default ResolverActivity with custom activity: " +
6533                    mResolveComponentName);
6534        }
6535    }
6536
6537    private static String calculateBundledApkRoot(final String codePathString) {
6538        final File codePath = new File(codePathString);
6539        final File codeRoot;
6540        if (FileUtils.contains(Environment.getRootDirectory(), codePath)) {
6541            codeRoot = Environment.getRootDirectory();
6542        } else if (FileUtils.contains(Environment.getOemDirectory(), codePath)) {
6543            codeRoot = Environment.getOemDirectory();
6544        } else if (FileUtils.contains(Environment.getVendorDirectory(), codePath)) {
6545            codeRoot = Environment.getVendorDirectory();
6546        } else {
6547            // Unrecognized code path; take its top real segment as the apk root:
6548            // e.g. /something/app/blah.apk => /something
6549            try {
6550                File f = codePath.getCanonicalFile();
6551                File parent = f.getParentFile();    // non-null because codePath is a file
6552                File tmp;
6553                while ((tmp = parent.getParentFile()) != null) {
6554                    f = parent;
6555                    parent = tmp;
6556                }
6557                codeRoot = f;
6558                Slog.w(TAG, "Unrecognized code path "
6559                        + codePath + " - using " + codeRoot);
6560            } catch (IOException e) {
6561                // Can't canonicalize the code path -- shenanigans?
6562                Slog.w(TAG, "Can't canonicalize code path " + codePath);
6563                return Environment.getRootDirectory().getPath();
6564            }
6565        }
6566        return codeRoot.getPath();
6567    }
6568
6569    /**
6570     * Derive and set the location of native libraries for the given package,
6571     * which varies depending on where and how the package was installed.
6572     */
6573    private void setNativeLibraryPaths(PackageParser.Package pkg) {
6574        final ApplicationInfo info = pkg.applicationInfo;
6575        final String codePath = pkg.codePath;
6576        final File codeFile = new File(codePath);
6577        final boolean bundledApp = isSystemApp(info) && !isUpdatedSystemApp(info);
6578        final boolean asecApp = isForwardLocked(info) || isExternal(info);
6579
6580        info.nativeLibraryRootDir = null;
6581        info.nativeLibraryRootRequiresIsa = false;
6582        info.nativeLibraryDir = null;
6583        info.secondaryNativeLibraryDir = null;
6584
6585        if (isApkFile(codeFile)) {
6586            // Monolithic install
6587            if (bundledApp) {
6588                // If "/system/lib64/apkname" exists, assume that is the per-package
6589                // native library directory to use; otherwise use "/system/lib/apkname".
6590                final String apkRoot = calculateBundledApkRoot(info.sourceDir);
6591                final boolean is64Bit = VMRuntime.is64BitInstructionSet(
6592                        getPrimaryInstructionSet(info));
6593
6594                // This is a bundled system app so choose the path based on the ABI.
6595                // if it's a 64 bit abi, use lib64 otherwise use lib32. Note that this
6596                // is just the default path.
6597                final String apkName = deriveCodePathName(codePath);
6598                final String libDir = is64Bit ? LIB64_DIR_NAME : LIB_DIR_NAME;
6599                info.nativeLibraryRootDir = Environment.buildPath(new File(apkRoot), libDir,
6600                        apkName).getAbsolutePath();
6601
6602                if (info.secondaryCpuAbi != null) {
6603                    final String secondaryLibDir = is64Bit ? LIB_DIR_NAME : LIB64_DIR_NAME;
6604                    info.secondaryNativeLibraryDir = Environment.buildPath(new File(apkRoot),
6605                            secondaryLibDir, apkName).getAbsolutePath();
6606                }
6607            } else if (asecApp) {
6608                info.nativeLibraryRootDir = new File(codeFile.getParentFile(), LIB_DIR_NAME)
6609                        .getAbsolutePath();
6610            } else {
6611                final String apkName = deriveCodePathName(codePath);
6612                info.nativeLibraryRootDir = new File(mAppLib32InstallDir, apkName)
6613                        .getAbsolutePath();
6614            }
6615
6616            info.nativeLibraryRootRequiresIsa = false;
6617            info.nativeLibraryDir = info.nativeLibraryRootDir;
6618        } else {
6619            // Cluster install
6620            info.nativeLibraryRootDir = new File(codeFile, LIB_DIR_NAME).getAbsolutePath();
6621            info.nativeLibraryRootRequiresIsa = true;
6622
6623            info.nativeLibraryDir = new File(info.nativeLibraryRootDir,
6624                    getPrimaryInstructionSet(info)).getAbsolutePath();
6625
6626            if (info.secondaryCpuAbi != null) {
6627                info.secondaryNativeLibraryDir = new File(info.nativeLibraryRootDir,
6628                        VMRuntime.getInstructionSet(info.secondaryCpuAbi)).getAbsolutePath();
6629            }
6630        }
6631    }
6632
6633    /**
6634     * Calculate the abis and roots for a bundled app. These can uniquely
6635     * be determined from the contents of the system partition, i.e whether
6636     * it contains 64 or 32 bit shared libraries etc. We do not validate any
6637     * of this information, and instead assume that the system was built
6638     * sensibly.
6639     */
6640    private void setBundledAppAbisAndRoots(PackageParser.Package pkg,
6641                                           PackageSetting pkgSetting) {
6642        final String apkName = deriveCodePathName(pkg.applicationInfo.getCodePath());
6643
6644        // If "/system/lib64/apkname" exists, assume that is the per-package
6645        // native library directory to use; otherwise use "/system/lib/apkname".
6646        final String apkRoot = calculateBundledApkRoot(pkg.applicationInfo.sourceDir);
6647        setBundledAppAbi(pkg, apkRoot, apkName);
6648        // pkgSetting might be null during rescan following uninstall of updates
6649        // to a bundled app, so accommodate that possibility.  The settings in
6650        // that case will be established later from the parsed package.
6651        //
6652        // If the settings aren't null, sync them up with what we've just derived.
6653        // note that apkRoot isn't stored in the package settings.
6654        if (pkgSetting != null) {
6655            pkgSetting.primaryCpuAbiString = pkg.applicationInfo.primaryCpuAbi;
6656            pkgSetting.secondaryCpuAbiString = pkg.applicationInfo.secondaryCpuAbi;
6657        }
6658    }
6659
6660    /**
6661     * Deduces the ABI of a bundled app and sets the relevant fields on the
6662     * parsed pkg object.
6663     *
6664     * @param apkRoot the root of the installed apk, something like {@code /system} or {@code /oem}
6665     *        under which system libraries are installed.
6666     * @param apkName the name of the installed package.
6667     */
6668    private static void setBundledAppAbi(PackageParser.Package pkg, String apkRoot, String apkName) {
6669        final File codeFile = new File(pkg.codePath);
6670
6671        final boolean has64BitLibs;
6672        final boolean has32BitLibs;
6673        if (isApkFile(codeFile)) {
6674            // Monolithic install
6675            has64BitLibs = (new File(apkRoot, new File(LIB64_DIR_NAME, apkName).getPath())).exists();
6676            has32BitLibs = (new File(apkRoot, new File(LIB_DIR_NAME, apkName).getPath())).exists();
6677        } else {
6678            // Cluster install
6679            final File rootDir = new File(codeFile, LIB_DIR_NAME);
6680            if (!ArrayUtils.isEmpty(Build.SUPPORTED_64_BIT_ABIS)
6681                    && !TextUtils.isEmpty(Build.SUPPORTED_64_BIT_ABIS[0])) {
6682                final String isa = VMRuntime.getInstructionSet(Build.SUPPORTED_64_BIT_ABIS[0]);
6683                has64BitLibs = (new File(rootDir, isa)).exists();
6684            } else {
6685                has64BitLibs = false;
6686            }
6687            if (!ArrayUtils.isEmpty(Build.SUPPORTED_32_BIT_ABIS)
6688                    && !TextUtils.isEmpty(Build.SUPPORTED_32_BIT_ABIS[0])) {
6689                final String isa = VMRuntime.getInstructionSet(Build.SUPPORTED_32_BIT_ABIS[0]);
6690                has32BitLibs = (new File(rootDir, isa)).exists();
6691            } else {
6692                has32BitLibs = false;
6693            }
6694        }
6695
6696        if (has64BitLibs && !has32BitLibs) {
6697            // The package has 64 bit libs, but not 32 bit libs. Its primary
6698            // ABI should be 64 bit. We can safely assume here that the bundled
6699            // native libraries correspond to the most preferred ABI in the list.
6700
6701            pkg.applicationInfo.primaryCpuAbi = Build.SUPPORTED_64_BIT_ABIS[0];
6702            pkg.applicationInfo.secondaryCpuAbi = null;
6703        } else if (has32BitLibs && !has64BitLibs) {
6704            // The package has 32 bit libs but not 64 bit libs. Its primary
6705            // ABI should be 32 bit.
6706
6707            pkg.applicationInfo.primaryCpuAbi = Build.SUPPORTED_32_BIT_ABIS[0];
6708            pkg.applicationInfo.secondaryCpuAbi = null;
6709        } else if (has32BitLibs && has64BitLibs) {
6710            // The application has both 64 and 32 bit bundled libraries. We check
6711            // here that the app declares multiArch support, and warn if it doesn't.
6712            //
6713            // We will be lenient here and record both ABIs. The primary will be the
6714            // ABI that's higher on the list, i.e, a device that's configured to prefer
6715            // 64 bit apps will see a 64 bit primary ABI,
6716
6717            if ((pkg.applicationInfo.flags & ApplicationInfo.FLAG_MULTIARCH) == 0) {
6718                Slog.e(TAG, "Package: " + pkg + " has multiple bundled libs, but is not multiarch.");
6719            }
6720
6721            if (VMRuntime.is64BitInstructionSet(getPreferredInstructionSet())) {
6722                pkg.applicationInfo.primaryCpuAbi = Build.SUPPORTED_64_BIT_ABIS[0];
6723                pkg.applicationInfo.secondaryCpuAbi = Build.SUPPORTED_32_BIT_ABIS[0];
6724            } else {
6725                pkg.applicationInfo.primaryCpuAbi = Build.SUPPORTED_32_BIT_ABIS[0];
6726                pkg.applicationInfo.secondaryCpuAbi = Build.SUPPORTED_64_BIT_ABIS[0];
6727            }
6728        } else {
6729            pkg.applicationInfo.primaryCpuAbi = null;
6730            pkg.applicationInfo.secondaryCpuAbi = null;
6731        }
6732    }
6733
6734    private void killApplication(String pkgName, int appId, String reason) {
6735        // Request the ActivityManager to kill the process(only for existing packages)
6736        // so that we do not end up in a confused state while the user is still using the older
6737        // version of the application while the new one gets installed.
6738        IActivityManager am = ActivityManagerNative.getDefault();
6739        if (am != null) {
6740            try {
6741                am.killApplicationWithAppId(pkgName, appId, reason);
6742            } catch (RemoteException e) {
6743            }
6744        }
6745    }
6746
6747    void removePackageLI(PackageSetting ps, boolean chatty) {
6748        if (DEBUG_INSTALL) {
6749            if (chatty)
6750                Log.d(TAG, "Removing package " + ps.name);
6751        }
6752
6753        // writer
6754        synchronized (mPackages) {
6755            mPackages.remove(ps.name);
6756            final PackageParser.Package pkg = ps.pkg;
6757            if (pkg != null) {
6758                cleanPackageDataStructuresLILPw(pkg, chatty);
6759            }
6760        }
6761    }
6762
6763    void removeInstalledPackageLI(PackageParser.Package pkg, boolean chatty) {
6764        if (DEBUG_INSTALL) {
6765            if (chatty)
6766                Log.d(TAG, "Removing package " + pkg.applicationInfo.packageName);
6767        }
6768
6769        // writer
6770        synchronized (mPackages) {
6771            mPackages.remove(pkg.applicationInfo.packageName);
6772            cleanPackageDataStructuresLILPw(pkg, chatty);
6773        }
6774    }
6775
6776    void cleanPackageDataStructuresLILPw(PackageParser.Package pkg, boolean chatty) {
6777        int N = pkg.providers.size();
6778        StringBuilder r = null;
6779        int i;
6780        for (i=0; i<N; i++) {
6781            PackageParser.Provider p = pkg.providers.get(i);
6782            mProviders.removeProvider(p);
6783            if (p.info.authority == null) {
6784
6785                /* There was another ContentProvider with this authority when
6786                 * this app was installed so this authority is null,
6787                 * Ignore it as we don't have to unregister the provider.
6788                 */
6789                continue;
6790            }
6791            String names[] = p.info.authority.split(";");
6792            for (int j = 0; j < names.length; j++) {
6793                if (mProvidersByAuthority.get(names[j]) == p) {
6794                    mProvidersByAuthority.remove(names[j]);
6795                    if (DEBUG_REMOVE) {
6796                        if (chatty)
6797                            Log.d(TAG, "Unregistered content provider: " + names[j]
6798                                    + ", className = " + p.info.name + ", isSyncable = "
6799                                    + p.info.isSyncable);
6800                    }
6801                }
6802            }
6803            if (DEBUG_REMOVE && chatty) {
6804                if (r == null) {
6805                    r = new StringBuilder(256);
6806                } else {
6807                    r.append(' ');
6808                }
6809                r.append(p.info.name);
6810            }
6811        }
6812        if (r != null) {
6813            if (DEBUG_REMOVE) Log.d(TAG, "  Providers: " + r);
6814        }
6815
6816        N = pkg.services.size();
6817        r = null;
6818        for (i=0; i<N; i++) {
6819            PackageParser.Service s = pkg.services.get(i);
6820            mServices.removeService(s);
6821            if (chatty) {
6822                if (r == null) {
6823                    r = new StringBuilder(256);
6824                } else {
6825                    r.append(' ');
6826                }
6827                r.append(s.info.name);
6828            }
6829        }
6830        if (r != null) {
6831            if (DEBUG_REMOVE) Log.d(TAG, "  Services: " + r);
6832        }
6833
6834        N = pkg.receivers.size();
6835        r = null;
6836        for (i=0; i<N; i++) {
6837            PackageParser.Activity a = pkg.receivers.get(i);
6838            mReceivers.removeActivity(a, "receiver");
6839            if (DEBUG_REMOVE && chatty) {
6840                if (r == null) {
6841                    r = new StringBuilder(256);
6842                } else {
6843                    r.append(' ');
6844                }
6845                r.append(a.info.name);
6846            }
6847        }
6848        if (r != null) {
6849            if (DEBUG_REMOVE) Log.d(TAG, "  Receivers: " + r);
6850        }
6851
6852        N = pkg.activities.size();
6853        r = null;
6854        for (i=0; i<N; i++) {
6855            PackageParser.Activity a = pkg.activities.get(i);
6856            mActivities.removeActivity(a, "activity");
6857            if (DEBUG_REMOVE && chatty) {
6858                if (r == null) {
6859                    r = new StringBuilder(256);
6860                } else {
6861                    r.append(' ');
6862                }
6863                r.append(a.info.name);
6864            }
6865        }
6866        if (r != null) {
6867            if (DEBUG_REMOVE) Log.d(TAG, "  Activities: " + r);
6868        }
6869
6870        N = pkg.permissions.size();
6871        r = null;
6872        for (i=0; i<N; i++) {
6873            PackageParser.Permission p = pkg.permissions.get(i);
6874            BasePermission bp = mSettings.mPermissions.get(p.info.name);
6875            if (bp == null) {
6876                bp = mSettings.mPermissionTrees.get(p.info.name);
6877            }
6878            if (bp != null && bp.perm == p) {
6879                bp.perm = null;
6880                if (DEBUG_REMOVE && chatty) {
6881                    if (r == null) {
6882                        r = new StringBuilder(256);
6883                    } else {
6884                        r.append(' ');
6885                    }
6886                    r.append(p.info.name);
6887                }
6888            }
6889            if ((p.info.protectionLevel&PermissionInfo.PROTECTION_FLAG_APPOP) != 0) {
6890                ArraySet<String> appOpPerms = mAppOpPermissionPackages.get(p.info.name);
6891                if (appOpPerms != null) {
6892                    appOpPerms.remove(pkg.packageName);
6893                }
6894            }
6895        }
6896        if (r != null) {
6897            if (DEBUG_REMOVE) Log.d(TAG, "  Permissions: " + r);
6898        }
6899
6900        N = pkg.requestedPermissions.size();
6901        r = null;
6902        for (i=0; i<N; i++) {
6903            String perm = pkg.requestedPermissions.get(i);
6904            BasePermission bp = mSettings.mPermissions.get(perm);
6905            if (bp != null && (bp.protectionLevel&PermissionInfo.PROTECTION_FLAG_APPOP) != 0) {
6906                ArraySet<String> appOpPerms = mAppOpPermissionPackages.get(perm);
6907                if (appOpPerms != null) {
6908                    appOpPerms.remove(pkg.packageName);
6909                    if (appOpPerms.isEmpty()) {
6910                        mAppOpPermissionPackages.remove(perm);
6911                    }
6912                }
6913            }
6914        }
6915        if (r != null) {
6916            if (DEBUG_REMOVE) Log.d(TAG, "  Permissions: " + r);
6917        }
6918
6919        N = pkg.instrumentation.size();
6920        r = null;
6921        for (i=0; i<N; i++) {
6922            PackageParser.Instrumentation a = pkg.instrumentation.get(i);
6923            mInstrumentation.remove(a.getComponentName());
6924            if (DEBUG_REMOVE && chatty) {
6925                if (r == null) {
6926                    r = new StringBuilder(256);
6927                } else {
6928                    r.append(' ');
6929                }
6930                r.append(a.info.name);
6931            }
6932        }
6933        if (r != null) {
6934            if (DEBUG_REMOVE) Log.d(TAG, "  Instrumentation: " + r);
6935        }
6936
6937        r = null;
6938        if ((pkg.applicationInfo.flags&ApplicationInfo.FLAG_SYSTEM) != 0) {
6939            // Only system apps can hold shared libraries.
6940            if (pkg.libraryNames != null) {
6941                for (i=0; i<pkg.libraryNames.size(); i++) {
6942                    String name = pkg.libraryNames.get(i);
6943                    SharedLibraryEntry cur = mSharedLibraries.get(name);
6944                    if (cur != null && cur.apk != null && cur.apk.equals(pkg.packageName)) {
6945                        mSharedLibraries.remove(name);
6946                        if (DEBUG_REMOVE && chatty) {
6947                            if (r == null) {
6948                                r = new StringBuilder(256);
6949                            } else {
6950                                r.append(' ');
6951                            }
6952                            r.append(name);
6953                        }
6954                    }
6955                }
6956            }
6957        }
6958        if (r != null) {
6959            if (DEBUG_REMOVE) Log.d(TAG, "  Libraries: " + r);
6960        }
6961    }
6962
6963    private static boolean hasPermission(PackageParser.Package pkgInfo, String perm) {
6964        for (int i=pkgInfo.permissions.size()-1; i>=0; i--) {
6965            if (pkgInfo.permissions.get(i).info.name.equals(perm)) {
6966                return true;
6967            }
6968        }
6969        return false;
6970    }
6971
6972    static final int UPDATE_PERMISSIONS_ALL = 1<<0;
6973    static final int UPDATE_PERMISSIONS_REPLACE_PKG = 1<<1;
6974    static final int UPDATE_PERMISSIONS_REPLACE_ALL = 1<<2;
6975
6976    private void updatePermissionsLPw(String changingPkg,
6977            PackageParser.Package pkgInfo, int flags) {
6978        // Make sure there are no dangling permission trees.
6979        Iterator<BasePermission> it = mSettings.mPermissionTrees.values().iterator();
6980        while (it.hasNext()) {
6981            final BasePermission bp = it.next();
6982            if (bp.packageSetting == null) {
6983                // We may not yet have parsed the package, so just see if
6984                // we still know about its settings.
6985                bp.packageSetting = mSettings.mPackages.get(bp.sourcePackage);
6986            }
6987            if (bp.packageSetting == null) {
6988                Slog.w(TAG, "Removing dangling permission tree: " + bp.name
6989                        + " from package " + bp.sourcePackage);
6990                it.remove();
6991            } else if (changingPkg != null && changingPkg.equals(bp.sourcePackage)) {
6992                if (pkgInfo == null || !hasPermission(pkgInfo, bp.name)) {
6993                    Slog.i(TAG, "Removing old permission tree: " + bp.name
6994                            + " from package " + bp.sourcePackage);
6995                    flags |= UPDATE_PERMISSIONS_ALL;
6996                    it.remove();
6997                }
6998            }
6999        }
7000
7001        // Make sure all dynamic permissions have been assigned to a package,
7002        // and make sure there are no dangling permissions.
7003        it = mSettings.mPermissions.values().iterator();
7004        while (it.hasNext()) {
7005            final BasePermission bp = it.next();
7006            if (bp.type == BasePermission.TYPE_DYNAMIC) {
7007                if (DEBUG_SETTINGS) Log.v(TAG, "Dynamic permission: name="
7008                        + bp.name + " pkg=" + bp.sourcePackage
7009                        + " info=" + bp.pendingInfo);
7010                if (bp.packageSetting == null && bp.pendingInfo != null) {
7011                    final BasePermission tree = findPermissionTreeLP(bp.name);
7012                    if (tree != null && tree.perm != null) {
7013                        bp.packageSetting = tree.packageSetting;
7014                        bp.perm = new PackageParser.Permission(tree.perm.owner,
7015                                new PermissionInfo(bp.pendingInfo));
7016                        bp.perm.info.packageName = tree.perm.info.packageName;
7017                        bp.perm.info.name = bp.name;
7018                        bp.uid = tree.uid;
7019                    }
7020                }
7021            }
7022            if (bp.packageSetting == null) {
7023                // We may not yet have parsed the package, so just see if
7024                // we still know about its settings.
7025                bp.packageSetting = mSettings.mPackages.get(bp.sourcePackage);
7026            }
7027            if (bp.packageSetting == null) {
7028                Slog.w(TAG, "Removing dangling permission: " + bp.name
7029                        + " from package " + bp.sourcePackage);
7030                it.remove();
7031            } else if (changingPkg != null && changingPkg.equals(bp.sourcePackage)) {
7032                if (pkgInfo == null || !hasPermission(pkgInfo, bp.name)) {
7033                    Slog.i(TAG, "Removing old permission: " + bp.name
7034                            + " from package " + bp.sourcePackage);
7035                    flags |= UPDATE_PERMISSIONS_ALL;
7036                    it.remove();
7037                }
7038            }
7039        }
7040
7041        // Now update the permissions for all packages, in particular
7042        // replace the granted permissions of the system packages.
7043        if ((flags&UPDATE_PERMISSIONS_ALL) != 0) {
7044            for (PackageParser.Package pkg : mPackages.values()) {
7045                if (pkg != pkgInfo) {
7046                    grantPermissionsLPw(pkg, (flags&UPDATE_PERMISSIONS_REPLACE_ALL) != 0,
7047                            changingPkg);
7048                }
7049            }
7050        }
7051
7052        if (pkgInfo != null) {
7053            grantPermissionsLPw(pkgInfo, (flags&UPDATE_PERMISSIONS_REPLACE_PKG) != 0, changingPkg);
7054        }
7055    }
7056
7057    private void grantPermissionsLPw(PackageParser.Package pkg, boolean replace,
7058            String packageOfInterest) {
7059        final PackageSetting ps = (PackageSetting) pkg.mExtras;
7060        if (ps == null) {
7061            return;
7062        }
7063        final GrantedPermissions gp = ps.sharedUser != null ? ps.sharedUser : ps;
7064        ArraySet<String> origPermissions = gp.grantedPermissions;
7065        boolean changedPermission = false;
7066
7067        if (replace) {
7068            ps.permissionsFixed = false;
7069            if (gp == ps) {
7070                origPermissions = new ArraySet<String>(gp.grantedPermissions);
7071                gp.grantedPermissions.clear();
7072                gp.gids = mGlobalGids;
7073            }
7074        }
7075
7076        if (gp.gids == null) {
7077            gp.gids = mGlobalGids;
7078        }
7079
7080        final int N = pkg.requestedPermissions.size();
7081        for (int i=0; i<N; i++) {
7082            final String name = pkg.requestedPermissions.get(i);
7083            final boolean required = pkg.requestedPermissionsRequired.get(i);
7084            final BasePermission bp = mSettings.mPermissions.get(name);
7085            if (DEBUG_INSTALL) {
7086                if (gp != ps) {
7087                    Log.i(TAG, "Package " + pkg.packageName + " checking " + name + ": " + bp);
7088                }
7089            }
7090
7091            if (bp == null || bp.packageSetting == null) {
7092                if (packageOfInterest == null || packageOfInterest.equals(pkg.packageName)) {
7093                    Slog.w(TAG, "Unknown permission " + name
7094                            + " in package " + pkg.packageName);
7095                }
7096                continue;
7097            }
7098
7099            final String perm = bp.name;
7100            boolean allowed;
7101            boolean allowedSig = false;
7102            if ((bp.protectionLevel&PermissionInfo.PROTECTION_FLAG_APPOP) != 0) {
7103                // Keep track of app op permissions.
7104                ArraySet<String> pkgs = mAppOpPermissionPackages.get(bp.name);
7105                if (pkgs == null) {
7106                    pkgs = new ArraySet<>();
7107                    mAppOpPermissionPackages.put(bp.name, pkgs);
7108                }
7109                pkgs.add(pkg.packageName);
7110            }
7111            final int level = bp.protectionLevel & PermissionInfo.PROTECTION_MASK_BASE;
7112            if (level == PermissionInfo.PROTECTION_NORMAL
7113                    || level == PermissionInfo.PROTECTION_DANGEROUS) {
7114                // We grant a normal or dangerous permission if any of the following
7115                // are true:
7116                // 1) The permission is required
7117                // 2) The permission is optional, but was granted in the past
7118                // 3) The permission is optional, but was requested by an
7119                //    app in /system (not /data)
7120                //
7121                // Otherwise, reject the permission.
7122                allowed = (required || origPermissions.contains(perm)
7123                        || (isSystemApp(ps) && !isUpdatedSystemApp(ps)));
7124            } else if (bp.packageSetting == null) {
7125                // This permission is invalid; skip it.
7126                allowed = false;
7127            } else if (level == PermissionInfo.PROTECTION_SIGNATURE) {
7128                allowed = grantSignaturePermission(perm, pkg, bp, origPermissions);
7129                if (allowed) {
7130                    allowedSig = true;
7131                }
7132            } else {
7133                allowed = false;
7134            }
7135            if (DEBUG_INSTALL) {
7136                if (gp != ps) {
7137                    Log.i(TAG, "Package " + pkg.packageName + " granting " + perm);
7138                }
7139            }
7140            if (allowed) {
7141                if (!isSystemApp(ps) && ps.permissionsFixed) {
7142                    // If this is an existing, non-system package, then
7143                    // we can't add any new permissions to it.
7144                    if (!allowedSig && !gp.grantedPermissions.contains(perm)) {
7145                        // Except...  if this is a permission that was added
7146                        // to the platform (note: need to only do this when
7147                        // updating the platform).
7148                        allowed = isNewPlatformPermissionForPackage(perm, pkg);
7149                    }
7150                }
7151                if (allowed) {
7152                    if (!gp.grantedPermissions.contains(perm)) {
7153                        changedPermission = true;
7154                        gp.grantedPermissions.add(perm);
7155                        gp.gids = appendInts(gp.gids, bp.gids);
7156                    } else if (!ps.haveGids) {
7157                        gp.gids = appendInts(gp.gids, bp.gids);
7158                    }
7159                } else {
7160                    if (packageOfInterest == null || packageOfInterest.equals(pkg.packageName)) {
7161                        Slog.w(TAG, "Not granting permission " + perm
7162                                + " to package " + pkg.packageName
7163                                + " because it was previously installed without");
7164                    }
7165                }
7166            } else {
7167                if (gp.grantedPermissions.remove(perm)) {
7168                    changedPermission = true;
7169                    gp.gids = removeInts(gp.gids, bp.gids);
7170                    Slog.i(TAG, "Un-granting permission " + perm
7171                            + " from package " + pkg.packageName
7172                            + " (protectionLevel=" + bp.protectionLevel
7173                            + " flags=0x" + Integer.toHexString(pkg.applicationInfo.flags)
7174                            + ")");
7175                } else if ((bp.protectionLevel&PermissionInfo.PROTECTION_FLAG_APPOP) == 0) {
7176                    // Don't print warning for app op permissions, since it is fine for them
7177                    // not to be granted, there is a UI for the user to decide.
7178                    if (packageOfInterest == null || packageOfInterest.equals(pkg.packageName)) {
7179                        Slog.w(TAG, "Not granting permission " + perm
7180                                + " to package " + pkg.packageName
7181                                + " (protectionLevel=" + bp.protectionLevel
7182                                + " flags=0x" + Integer.toHexString(pkg.applicationInfo.flags)
7183                                + ")");
7184                    }
7185                }
7186            }
7187        }
7188
7189        if ((changedPermission || replace) && !ps.permissionsFixed &&
7190                !isSystemApp(ps) || isUpdatedSystemApp(ps)){
7191            // This is the first that we have heard about this package, so the
7192            // permissions we have now selected are fixed until explicitly
7193            // changed.
7194            ps.permissionsFixed = true;
7195        }
7196        ps.haveGids = true;
7197    }
7198
7199    private boolean isNewPlatformPermissionForPackage(String perm, PackageParser.Package pkg) {
7200        boolean allowed = false;
7201        final int NP = PackageParser.NEW_PERMISSIONS.length;
7202        for (int ip=0; ip<NP; ip++) {
7203            final PackageParser.NewPermissionInfo npi
7204                    = PackageParser.NEW_PERMISSIONS[ip];
7205            if (npi.name.equals(perm)
7206                    && pkg.applicationInfo.targetSdkVersion < npi.sdkVersion) {
7207                allowed = true;
7208                Log.i(TAG, "Auto-granting " + perm + " to old pkg "
7209                        + pkg.packageName);
7210                break;
7211            }
7212        }
7213        return allowed;
7214    }
7215
7216    private boolean grantSignaturePermission(String perm, PackageParser.Package pkg,
7217                                          BasePermission bp, ArraySet<String> origPermissions) {
7218        boolean allowed;
7219        allowed = (compareSignatures(
7220                bp.packageSetting.signatures.mSignatures, pkg.mSignatures)
7221                        == PackageManager.SIGNATURE_MATCH)
7222                || (compareSignatures(mPlatformPackage.mSignatures, pkg.mSignatures)
7223                        == PackageManager.SIGNATURE_MATCH);
7224        if (!allowed && (bp.protectionLevel
7225                & PermissionInfo.PROTECTION_FLAG_SYSTEM) != 0) {
7226            if (isSystemApp(pkg)) {
7227                // For updated system applications, a system permission
7228                // is granted only if it had been defined by the original application.
7229                if (isUpdatedSystemApp(pkg)) {
7230                    final PackageSetting sysPs = mSettings
7231                            .getDisabledSystemPkgLPr(pkg.packageName);
7232                    final GrantedPermissions origGp = sysPs.sharedUser != null
7233                            ? sysPs.sharedUser : sysPs;
7234
7235                    if (origGp.grantedPermissions.contains(perm)) {
7236                        // If the original was granted this permission, we take
7237                        // that grant decision as read and propagate it to the
7238                        // update.
7239                        if (sysPs.isPrivileged()) {
7240                            allowed = true;
7241                        }
7242                    } else {
7243                        // The system apk may have been updated with an older
7244                        // version of the one on the data partition, but which
7245                        // granted a new system permission that it didn't have
7246                        // before.  In this case we do want to allow the app to
7247                        // now get the new permission if the ancestral apk is
7248                        // privileged to get it.
7249                        if (sysPs.pkg != null && sysPs.isPrivileged()) {
7250                            for (int j=0;
7251                                    j<sysPs.pkg.requestedPermissions.size(); j++) {
7252                                if (perm.equals(
7253                                        sysPs.pkg.requestedPermissions.get(j))) {
7254                                    allowed = true;
7255                                    break;
7256                                }
7257                            }
7258                        }
7259                    }
7260                } else {
7261                    allowed = isPrivilegedApp(pkg);
7262                }
7263            }
7264        }
7265        if (!allowed && (bp.protectionLevel
7266                & PermissionInfo.PROTECTION_FLAG_DEVELOPMENT) != 0) {
7267            // For development permissions, a development permission
7268            // is granted only if it was already granted.
7269            allowed = origPermissions.contains(perm);
7270        }
7271        return allowed;
7272    }
7273
7274    final class ActivityIntentResolver
7275            extends IntentResolver<PackageParser.ActivityIntentInfo, ResolveInfo> {
7276        public List<ResolveInfo> queryIntent(Intent intent, String resolvedType,
7277                boolean defaultOnly, int userId) {
7278            if (!sUserManager.exists(userId)) return null;
7279            mFlags = defaultOnly ? PackageManager.MATCH_DEFAULT_ONLY : 0;
7280            return super.queryIntent(intent, resolvedType, defaultOnly, userId);
7281        }
7282
7283        public List<ResolveInfo> queryIntent(Intent intent, String resolvedType, int flags,
7284                int userId) {
7285            if (!sUserManager.exists(userId)) return null;
7286            mFlags = flags;
7287            return super.queryIntent(intent, resolvedType,
7288                    (flags & PackageManager.MATCH_DEFAULT_ONLY) != 0, userId);
7289        }
7290
7291        public List<ResolveInfo> queryIntentForPackage(Intent intent, String resolvedType,
7292                int flags, ArrayList<PackageParser.Activity> packageActivities, int userId) {
7293            if (!sUserManager.exists(userId)) return null;
7294            if (packageActivities == null) {
7295                return null;
7296            }
7297            mFlags = flags;
7298            final boolean defaultOnly = (flags&PackageManager.MATCH_DEFAULT_ONLY) != 0;
7299            final int N = packageActivities.size();
7300            ArrayList<PackageParser.ActivityIntentInfo[]> listCut =
7301                new ArrayList<PackageParser.ActivityIntentInfo[]>(N);
7302
7303            ArrayList<PackageParser.ActivityIntentInfo> intentFilters;
7304            for (int i = 0; i < N; ++i) {
7305                intentFilters = packageActivities.get(i).intents;
7306                if (intentFilters != null && intentFilters.size() > 0) {
7307                    PackageParser.ActivityIntentInfo[] array =
7308                            new PackageParser.ActivityIntentInfo[intentFilters.size()];
7309                    intentFilters.toArray(array);
7310                    listCut.add(array);
7311                }
7312            }
7313            return super.queryIntentFromList(intent, resolvedType, defaultOnly, listCut, userId);
7314        }
7315
7316        public final void addActivity(PackageParser.Activity a, String type) {
7317            final boolean systemApp = isSystemApp(a.info.applicationInfo);
7318            mActivities.put(a.getComponentName(), a);
7319            if (DEBUG_SHOW_INFO)
7320                Log.v(
7321                TAG, "  " + type + " " +
7322                (a.info.nonLocalizedLabel != null ? a.info.nonLocalizedLabel : a.info.name) + ":");
7323            if (DEBUG_SHOW_INFO)
7324                Log.v(TAG, "    Class=" + a.info.name);
7325            final int NI = a.intents.size();
7326            for (int j=0; j<NI; j++) {
7327                PackageParser.ActivityIntentInfo intent = a.intents.get(j);
7328                if (!systemApp && intent.getPriority() > 0 && "activity".equals(type)) {
7329                    intent.setPriority(0);
7330                    Log.w(TAG, "Package " + a.info.applicationInfo.packageName + " has activity "
7331                            + a.className + " with priority > 0, forcing to 0");
7332                }
7333                if (DEBUG_SHOW_INFO) {
7334                    Log.v(TAG, "    IntentFilter:");
7335                    intent.dump(new LogPrinter(Log.VERBOSE, TAG), "      ");
7336                }
7337                if (!intent.debugCheck()) {
7338                    Log.w(TAG, "==> For Activity " + a.info.name);
7339                }
7340                addFilter(intent);
7341            }
7342        }
7343
7344        public final void removeActivity(PackageParser.Activity a, String type) {
7345            mActivities.remove(a.getComponentName());
7346            if (DEBUG_SHOW_INFO) {
7347                Log.v(TAG, "  " + type + " "
7348                        + (a.info.nonLocalizedLabel != null ? a.info.nonLocalizedLabel
7349                                : a.info.name) + ":");
7350                Log.v(TAG, "    Class=" + a.info.name);
7351            }
7352            final int NI = a.intents.size();
7353            for (int j=0; j<NI; j++) {
7354                PackageParser.ActivityIntentInfo intent = a.intents.get(j);
7355                if (DEBUG_SHOW_INFO) {
7356                    Log.v(TAG, "    IntentFilter:");
7357                    intent.dump(new LogPrinter(Log.VERBOSE, TAG), "      ");
7358                }
7359                removeFilter(intent);
7360            }
7361        }
7362
7363        @Override
7364        protected boolean allowFilterResult(
7365                PackageParser.ActivityIntentInfo filter, List<ResolveInfo> dest) {
7366            ActivityInfo filterAi = filter.activity.info;
7367            for (int i=dest.size()-1; i>=0; i--) {
7368                ActivityInfo destAi = dest.get(i).activityInfo;
7369                if (destAi.name == filterAi.name
7370                        && destAi.packageName == filterAi.packageName) {
7371                    return false;
7372                }
7373            }
7374            return true;
7375        }
7376
7377        @Override
7378        protected ActivityIntentInfo[] newArray(int size) {
7379            return new ActivityIntentInfo[size];
7380        }
7381
7382        @Override
7383        protected boolean isFilterStopped(PackageParser.ActivityIntentInfo filter, int userId) {
7384            if (!sUserManager.exists(userId)) return true;
7385            PackageParser.Package p = filter.activity.owner;
7386            if (p != null) {
7387                PackageSetting ps = (PackageSetting)p.mExtras;
7388                if (ps != null) {
7389                    // System apps are never considered stopped for purposes of
7390                    // filtering, because there may be no way for the user to
7391                    // actually re-launch them.
7392                    return (ps.pkgFlags&ApplicationInfo.FLAG_SYSTEM) == 0
7393                            && ps.getStopped(userId);
7394                }
7395            }
7396            return false;
7397        }
7398
7399        @Override
7400        protected boolean isPackageForFilter(String packageName,
7401                PackageParser.ActivityIntentInfo info) {
7402            return packageName.equals(info.activity.owner.packageName);
7403        }
7404
7405        @Override
7406        protected ResolveInfo newResult(PackageParser.ActivityIntentInfo info,
7407                int match, int userId) {
7408            if (!sUserManager.exists(userId)) return null;
7409            if (!mSettings.isEnabledLPr(info.activity.info, mFlags, userId)) {
7410                return null;
7411            }
7412            final PackageParser.Activity activity = info.activity;
7413            if (mSafeMode && (activity.info.applicationInfo.flags
7414                    &ApplicationInfo.FLAG_SYSTEM) == 0) {
7415                return null;
7416            }
7417            PackageSetting ps = (PackageSetting) activity.owner.mExtras;
7418            if (ps == null) {
7419                return null;
7420            }
7421            ActivityInfo ai = PackageParser.generateActivityInfo(activity, mFlags,
7422                    ps.readUserState(userId), userId);
7423            if (ai == null) {
7424                return null;
7425            }
7426            final ResolveInfo res = new ResolveInfo();
7427            res.activityInfo = ai;
7428            if ((mFlags&PackageManager.GET_RESOLVED_FILTER) != 0) {
7429                res.filter = info;
7430            }
7431            res.priority = info.getPriority();
7432            res.preferredOrder = activity.owner.mPreferredOrder;
7433            //System.out.println("Result: " + res.activityInfo.className +
7434            //                   " = " + res.priority);
7435            res.match = match;
7436            res.isDefault = info.hasDefault;
7437            res.labelRes = info.labelRes;
7438            res.nonLocalizedLabel = info.nonLocalizedLabel;
7439            if (userNeedsBadging(userId)) {
7440                res.noResourceId = true;
7441            } else {
7442                res.icon = info.icon;
7443            }
7444            res.system = isSystemApp(res.activityInfo.applicationInfo);
7445            return res;
7446        }
7447
7448        @Override
7449        protected void sortResults(List<ResolveInfo> results) {
7450            Collections.sort(results, mResolvePrioritySorter);
7451        }
7452
7453        @Override
7454        protected void dumpFilter(PrintWriter out, String prefix,
7455                PackageParser.ActivityIntentInfo filter) {
7456            out.print(prefix); out.print(
7457                    Integer.toHexString(System.identityHashCode(filter.activity)));
7458                    out.print(' ');
7459                    filter.activity.printComponentShortName(out);
7460                    out.print(" filter ");
7461                    out.println(Integer.toHexString(System.identityHashCode(filter)));
7462        }
7463
7464        @Override
7465        protected Object filterToLabel(PackageParser.ActivityIntentInfo filter) {
7466            return filter.activity;
7467        }
7468
7469        protected void dumpFilterLabel(PrintWriter out, String prefix, Object label, int count) {
7470            PackageParser.Activity activity = (PackageParser.Activity)label;
7471            out.print(prefix); out.print(
7472                    Integer.toHexString(System.identityHashCode(activity)));
7473                    out.print(' ');
7474                    activity.printComponentShortName(out);
7475            if (count > 1) {
7476                out.print(" ("); out.print(count); out.print(" filters)");
7477            }
7478            out.println();
7479        }
7480
7481//        List<ResolveInfo> filterEnabled(List<ResolveInfo> resolveInfoList) {
7482//            final Iterator<ResolveInfo> i = resolveInfoList.iterator();
7483//            final List<ResolveInfo> retList = Lists.newArrayList();
7484//            while (i.hasNext()) {
7485//                final ResolveInfo resolveInfo = i.next();
7486//                if (isEnabledLP(resolveInfo.activityInfo)) {
7487//                    retList.add(resolveInfo);
7488//                }
7489//            }
7490//            return retList;
7491//        }
7492
7493        // Keys are String (activity class name), values are Activity.
7494        private final ArrayMap<ComponentName, PackageParser.Activity> mActivities
7495                = new ArrayMap<ComponentName, PackageParser.Activity>();
7496        private int mFlags;
7497    }
7498
7499    private final class ServiceIntentResolver
7500            extends IntentResolver<PackageParser.ServiceIntentInfo, ResolveInfo> {
7501        public List<ResolveInfo> queryIntent(Intent intent, String resolvedType,
7502                boolean defaultOnly, int userId) {
7503            mFlags = defaultOnly ? PackageManager.MATCH_DEFAULT_ONLY : 0;
7504            return super.queryIntent(intent, resolvedType, defaultOnly, userId);
7505        }
7506
7507        public List<ResolveInfo> queryIntent(Intent intent, String resolvedType, int flags,
7508                int userId) {
7509            if (!sUserManager.exists(userId)) return null;
7510            mFlags = flags;
7511            return super.queryIntent(intent, resolvedType,
7512                    (flags & PackageManager.MATCH_DEFAULT_ONLY) != 0, userId);
7513        }
7514
7515        public List<ResolveInfo> queryIntentForPackage(Intent intent, String resolvedType,
7516                int flags, ArrayList<PackageParser.Service> packageServices, int userId) {
7517            if (!sUserManager.exists(userId)) return null;
7518            if (packageServices == null) {
7519                return null;
7520            }
7521            mFlags = flags;
7522            final boolean defaultOnly = (flags&PackageManager.MATCH_DEFAULT_ONLY) != 0;
7523            final int N = packageServices.size();
7524            ArrayList<PackageParser.ServiceIntentInfo[]> listCut =
7525                new ArrayList<PackageParser.ServiceIntentInfo[]>(N);
7526
7527            ArrayList<PackageParser.ServiceIntentInfo> intentFilters;
7528            for (int i = 0; i < N; ++i) {
7529                intentFilters = packageServices.get(i).intents;
7530                if (intentFilters != null && intentFilters.size() > 0) {
7531                    PackageParser.ServiceIntentInfo[] array =
7532                            new PackageParser.ServiceIntentInfo[intentFilters.size()];
7533                    intentFilters.toArray(array);
7534                    listCut.add(array);
7535                }
7536            }
7537            return super.queryIntentFromList(intent, resolvedType, defaultOnly, listCut, userId);
7538        }
7539
7540        public final void addService(PackageParser.Service s) {
7541            mServices.put(s.getComponentName(), s);
7542            if (DEBUG_SHOW_INFO) {
7543                Log.v(TAG, "  "
7544                        + (s.info.nonLocalizedLabel != null
7545                        ? s.info.nonLocalizedLabel : s.info.name) + ":");
7546                Log.v(TAG, "    Class=" + s.info.name);
7547            }
7548            final int NI = s.intents.size();
7549            int j;
7550            for (j=0; j<NI; j++) {
7551                PackageParser.ServiceIntentInfo intent = s.intents.get(j);
7552                if (DEBUG_SHOW_INFO) {
7553                    Log.v(TAG, "    IntentFilter:");
7554                    intent.dump(new LogPrinter(Log.VERBOSE, TAG), "      ");
7555                }
7556                if (!intent.debugCheck()) {
7557                    Log.w(TAG, "==> For Service " + s.info.name);
7558                }
7559                addFilter(intent);
7560            }
7561        }
7562
7563        public final void removeService(PackageParser.Service s) {
7564            mServices.remove(s.getComponentName());
7565            if (DEBUG_SHOW_INFO) {
7566                Log.v(TAG, "  " + (s.info.nonLocalizedLabel != null
7567                        ? s.info.nonLocalizedLabel : s.info.name) + ":");
7568                Log.v(TAG, "    Class=" + s.info.name);
7569            }
7570            final int NI = s.intents.size();
7571            int j;
7572            for (j=0; j<NI; j++) {
7573                PackageParser.ServiceIntentInfo intent = s.intents.get(j);
7574                if (DEBUG_SHOW_INFO) {
7575                    Log.v(TAG, "    IntentFilter:");
7576                    intent.dump(new LogPrinter(Log.VERBOSE, TAG), "      ");
7577                }
7578                removeFilter(intent);
7579            }
7580        }
7581
7582        @Override
7583        protected boolean allowFilterResult(
7584                PackageParser.ServiceIntentInfo filter, List<ResolveInfo> dest) {
7585            ServiceInfo filterSi = filter.service.info;
7586            for (int i=dest.size()-1; i>=0; i--) {
7587                ServiceInfo destAi = dest.get(i).serviceInfo;
7588                if (destAi.name == filterSi.name
7589                        && destAi.packageName == filterSi.packageName) {
7590                    return false;
7591                }
7592            }
7593            return true;
7594        }
7595
7596        @Override
7597        protected PackageParser.ServiceIntentInfo[] newArray(int size) {
7598            return new PackageParser.ServiceIntentInfo[size];
7599        }
7600
7601        @Override
7602        protected boolean isFilterStopped(PackageParser.ServiceIntentInfo filter, int userId) {
7603            if (!sUserManager.exists(userId)) return true;
7604            PackageParser.Package p = filter.service.owner;
7605            if (p != null) {
7606                PackageSetting ps = (PackageSetting)p.mExtras;
7607                if (ps != null) {
7608                    // System apps are never considered stopped for purposes of
7609                    // filtering, because there may be no way for the user to
7610                    // actually re-launch them.
7611                    return (ps.pkgFlags & ApplicationInfo.FLAG_SYSTEM) == 0
7612                            && ps.getStopped(userId);
7613                }
7614            }
7615            return false;
7616        }
7617
7618        @Override
7619        protected boolean isPackageForFilter(String packageName,
7620                PackageParser.ServiceIntentInfo info) {
7621            return packageName.equals(info.service.owner.packageName);
7622        }
7623
7624        @Override
7625        protected ResolveInfo newResult(PackageParser.ServiceIntentInfo filter,
7626                int match, int userId) {
7627            if (!sUserManager.exists(userId)) return null;
7628            final PackageParser.ServiceIntentInfo info = (PackageParser.ServiceIntentInfo)filter;
7629            if (!mSettings.isEnabledLPr(info.service.info, mFlags, userId)) {
7630                return null;
7631            }
7632            final PackageParser.Service service = info.service;
7633            if (mSafeMode && (service.info.applicationInfo.flags
7634                    &ApplicationInfo.FLAG_SYSTEM) == 0) {
7635                return null;
7636            }
7637            PackageSetting ps = (PackageSetting) service.owner.mExtras;
7638            if (ps == null) {
7639                return null;
7640            }
7641            ServiceInfo si = PackageParser.generateServiceInfo(service, mFlags,
7642                    ps.readUserState(userId), userId);
7643            if (si == null) {
7644                return null;
7645            }
7646            final ResolveInfo res = new ResolveInfo();
7647            res.serviceInfo = si;
7648            if ((mFlags&PackageManager.GET_RESOLVED_FILTER) != 0) {
7649                res.filter = filter;
7650            }
7651            res.priority = info.getPriority();
7652            res.preferredOrder = service.owner.mPreferredOrder;
7653            //System.out.println("Result: " + res.activityInfo.className +
7654            //                   " = " + res.priority);
7655            res.match = match;
7656            res.isDefault = info.hasDefault;
7657            res.labelRes = info.labelRes;
7658            res.nonLocalizedLabel = info.nonLocalizedLabel;
7659            res.icon = info.icon;
7660            res.system = isSystemApp(res.serviceInfo.applicationInfo);
7661            return res;
7662        }
7663
7664        @Override
7665        protected void sortResults(List<ResolveInfo> results) {
7666            Collections.sort(results, mResolvePrioritySorter);
7667        }
7668
7669        @Override
7670        protected void dumpFilter(PrintWriter out, String prefix,
7671                PackageParser.ServiceIntentInfo filter) {
7672            out.print(prefix); out.print(
7673                    Integer.toHexString(System.identityHashCode(filter.service)));
7674                    out.print(' ');
7675                    filter.service.printComponentShortName(out);
7676                    out.print(" filter ");
7677                    out.println(Integer.toHexString(System.identityHashCode(filter)));
7678        }
7679
7680        @Override
7681        protected Object filterToLabel(PackageParser.ServiceIntentInfo filter) {
7682            return filter.service;
7683        }
7684
7685        protected void dumpFilterLabel(PrintWriter out, String prefix, Object label, int count) {
7686            PackageParser.Service service = (PackageParser.Service)label;
7687            out.print(prefix); out.print(
7688                    Integer.toHexString(System.identityHashCode(service)));
7689                    out.print(' ');
7690                    service.printComponentShortName(out);
7691            if (count > 1) {
7692                out.print(" ("); out.print(count); out.print(" filters)");
7693            }
7694            out.println();
7695        }
7696
7697//        List<ResolveInfo> filterEnabled(List<ResolveInfo> resolveInfoList) {
7698//            final Iterator<ResolveInfo> i = resolveInfoList.iterator();
7699//            final List<ResolveInfo> retList = Lists.newArrayList();
7700//            while (i.hasNext()) {
7701//                final ResolveInfo resolveInfo = (ResolveInfo) i;
7702//                if (isEnabledLP(resolveInfo.serviceInfo)) {
7703//                    retList.add(resolveInfo);
7704//                }
7705//            }
7706//            return retList;
7707//        }
7708
7709        // Keys are String (activity class name), values are Activity.
7710        private final ArrayMap<ComponentName, PackageParser.Service> mServices
7711                = new ArrayMap<ComponentName, PackageParser.Service>();
7712        private int mFlags;
7713    };
7714
7715    private final class ProviderIntentResolver
7716            extends IntentResolver<PackageParser.ProviderIntentInfo, ResolveInfo> {
7717        public List<ResolveInfo> queryIntent(Intent intent, String resolvedType,
7718                boolean defaultOnly, int userId) {
7719            mFlags = defaultOnly ? PackageManager.MATCH_DEFAULT_ONLY : 0;
7720            return super.queryIntent(intent, resolvedType, defaultOnly, userId);
7721        }
7722
7723        public List<ResolveInfo> queryIntent(Intent intent, String resolvedType, int flags,
7724                int userId) {
7725            if (!sUserManager.exists(userId))
7726                return null;
7727            mFlags = flags;
7728            return super.queryIntent(intent, resolvedType,
7729                    (flags & PackageManager.MATCH_DEFAULT_ONLY) != 0, userId);
7730        }
7731
7732        public List<ResolveInfo> queryIntentForPackage(Intent intent, String resolvedType,
7733                int flags, ArrayList<PackageParser.Provider> packageProviders, int userId) {
7734            if (!sUserManager.exists(userId))
7735                return null;
7736            if (packageProviders == null) {
7737                return null;
7738            }
7739            mFlags = flags;
7740            final boolean defaultOnly = (flags & PackageManager.MATCH_DEFAULT_ONLY) != 0;
7741            final int N = packageProviders.size();
7742            ArrayList<PackageParser.ProviderIntentInfo[]> listCut =
7743                    new ArrayList<PackageParser.ProviderIntentInfo[]>(N);
7744
7745            ArrayList<PackageParser.ProviderIntentInfo> intentFilters;
7746            for (int i = 0; i < N; ++i) {
7747                intentFilters = packageProviders.get(i).intents;
7748                if (intentFilters != null && intentFilters.size() > 0) {
7749                    PackageParser.ProviderIntentInfo[] array =
7750                            new PackageParser.ProviderIntentInfo[intentFilters.size()];
7751                    intentFilters.toArray(array);
7752                    listCut.add(array);
7753                }
7754            }
7755            return super.queryIntentFromList(intent, resolvedType, defaultOnly, listCut, userId);
7756        }
7757
7758        public final void addProvider(PackageParser.Provider p) {
7759            if (mProviders.containsKey(p.getComponentName())) {
7760                Slog.w(TAG, "Provider " + p.getComponentName() + " already defined; ignoring");
7761                return;
7762            }
7763
7764            mProviders.put(p.getComponentName(), p);
7765            if (DEBUG_SHOW_INFO) {
7766                Log.v(TAG, "  "
7767                        + (p.info.nonLocalizedLabel != null
7768                                ? p.info.nonLocalizedLabel : p.info.name) + ":");
7769                Log.v(TAG, "    Class=" + p.info.name);
7770            }
7771            final int NI = p.intents.size();
7772            int j;
7773            for (j = 0; j < NI; j++) {
7774                PackageParser.ProviderIntentInfo intent = p.intents.get(j);
7775                if (DEBUG_SHOW_INFO) {
7776                    Log.v(TAG, "    IntentFilter:");
7777                    intent.dump(new LogPrinter(Log.VERBOSE, TAG), "      ");
7778                }
7779                if (!intent.debugCheck()) {
7780                    Log.w(TAG, "==> For Provider " + p.info.name);
7781                }
7782                addFilter(intent);
7783            }
7784        }
7785
7786        public final void removeProvider(PackageParser.Provider p) {
7787            mProviders.remove(p.getComponentName());
7788            if (DEBUG_SHOW_INFO) {
7789                Log.v(TAG, "  " + (p.info.nonLocalizedLabel != null
7790                        ? p.info.nonLocalizedLabel : p.info.name) + ":");
7791                Log.v(TAG, "    Class=" + p.info.name);
7792            }
7793            final int NI = p.intents.size();
7794            int j;
7795            for (j = 0; j < NI; j++) {
7796                PackageParser.ProviderIntentInfo intent = p.intents.get(j);
7797                if (DEBUG_SHOW_INFO) {
7798                    Log.v(TAG, "    IntentFilter:");
7799                    intent.dump(new LogPrinter(Log.VERBOSE, TAG), "      ");
7800                }
7801                removeFilter(intent);
7802            }
7803        }
7804
7805        @Override
7806        protected boolean allowFilterResult(
7807                PackageParser.ProviderIntentInfo filter, List<ResolveInfo> dest) {
7808            ProviderInfo filterPi = filter.provider.info;
7809            for (int i = dest.size() - 1; i >= 0; i--) {
7810                ProviderInfo destPi = dest.get(i).providerInfo;
7811                if (destPi.name == filterPi.name
7812                        && destPi.packageName == filterPi.packageName) {
7813                    return false;
7814                }
7815            }
7816            return true;
7817        }
7818
7819        @Override
7820        protected PackageParser.ProviderIntentInfo[] newArray(int size) {
7821            return new PackageParser.ProviderIntentInfo[size];
7822        }
7823
7824        @Override
7825        protected boolean isFilterStopped(PackageParser.ProviderIntentInfo filter, int userId) {
7826            if (!sUserManager.exists(userId))
7827                return true;
7828            PackageParser.Package p = filter.provider.owner;
7829            if (p != null) {
7830                PackageSetting ps = (PackageSetting) p.mExtras;
7831                if (ps != null) {
7832                    // System apps are never considered stopped for purposes of
7833                    // filtering, because there may be no way for the user to
7834                    // actually re-launch them.
7835                    return (ps.pkgFlags & ApplicationInfo.FLAG_SYSTEM) == 0
7836                            && ps.getStopped(userId);
7837                }
7838            }
7839            return false;
7840        }
7841
7842        @Override
7843        protected boolean isPackageForFilter(String packageName,
7844                PackageParser.ProviderIntentInfo info) {
7845            return packageName.equals(info.provider.owner.packageName);
7846        }
7847
7848        @Override
7849        protected ResolveInfo newResult(PackageParser.ProviderIntentInfo filter,
7850                int match, int userId) {
7851            if (!sUserManager.exists(userId))
7852                return null;
7853            final PackageParser.ProviderIntentInfo info = filter;
7854            if (!mSettings.isEnabledLPr(info.provider.info, mFlags, userId)) {
7855                return null;
7856            }
7857            final PackageParser.Provider provider = info.provider;
7858            if (mSafeMode && (provider.info.applicationInfo.flags
7859                    & ApplicationInfo.FLAG_SYSTEM) == 0) {
7860                return null;
7861            }
7862            PackageSetting ps = (PackageSetting) provider.owner.mExtras;
7863            if (ps == null) {
7864                return null;
7865            }
7866            ProviderInfo pi = PackageParser.generateProviderInfo(provider, mFlags,
7867                    ps.readUserState(userId), userId);
7868            if (pi == null) {
7869                return null;
7870            }
7871            final ResolveInfo res = new ResolveInfo();
7872            res.providerInfo = pi;
7873            if ((mFlags & PackageManager.GET_RESOLVED_FILTER) != 0) {
7874                res.filter = filter;
7875            }
7876            res.priority = info.getPriority();
7877            res.preferredOrder = provider.owner.mPreferredOrder;
7878            res.match = match;
7879            res.isDefault = info.hasDefault;
7880            res.labelRes = info.labelRes;
7881            res.nonLocalizedLabel = info.nonLocalizedLabel;
7882            res.icon = info.icon;
7883            res.system = isSystemApp(res.providerInfo.applicationInfo);
7884            return res;
7885        }
7886
7887        @Override
7888        protected void sortResults(List<ResolveInfo> results) {
7889            Collections.sort(results, mResolvePrioritySorter);
7890        }
7891
7892        @Override
7893        protected void dumpFilter(PrintWriter out, String prefix,
7894                PackageParser.ProviderIntentInfo filter) {
7895            out.print(prefix);
7896            out.print(
7897                    Integer.toHexString(System.identityHashCode(filter.provider)));
7898            out.print(' ');
7899            filter.provider.printComponentShortName(out);
7900            out.print(" filter ");
7901            out.println(Integer.toHexString(System.identityHashCode(filter)));
7902        }
7903
7904        @Override
7905        protected Object filterToLabel(PackageParser.ProviderIntentInfo filter) {
7906            return filter.provider;
7907        }
7908
7909        protected void dumpFilterLabel(PrintWriter out, String prefix, Object label, int count) {
7910            PackageParser.Provider provider = (PackageParser.Provider)label;
7911            out.print(prefix); out.print(
7912                    Integer.toHexString(System.identityHashCode(provider)));
7913                    out.print(' ');
7914                    provider.printComponentShortName(out);
7915            if (count > 1) {
7916                out.print(" ("); out.print(count); out.print(" filters)");
7917            }
7918            out.println();
7919        }
7920
7921        private final ArrayMap<ComponentName, PackageParser.Provider> mProviders
7922                = new ArrayMap<ComponentName, PackageParser.Provider>();
7923        private int mFlags;
7924    };
7925
7926    private static final Comparator<ResolveInfo> mResolvePrioritySorter =
7927            new Comparator<ResolveInfo>() {
7928        public int compare(ResolveInfo r1, ResolveInfo r2) {
7929            int v1 = r1.priority;
7930            int v2 = r2.priority;
7931            //System.out.println("Comparing: q1=" + q1 + " q2=" + q2);
7932            if (v1 != v2) {
7933                return (v1 > v2) ? -1 : 1;
7934            }
7935            v1 = r1.preferredOrder;
7936            v2 = r2.preferredOrder;
7937            if (v1 != v2) {
7938                return (v1 > v2) ? -1 : 1;
7939            }
7940            if (r1.isDefault != r2.isDefault) {
7941                return r1.isDefault ? -1 : 1;
7942            }
7943            v1 = r1.match;
7944            v2 = r2.match;
7945            //System.out.println("Comparing: m1=" + m1 + " m2=" + m2);
7946            if (v1 != v2) {
7947                return (v1 > v2) ? -1 : 1;
7948            }
7949            if (r1.system != r2.system) {
7950                return r1.system ? -1 : 1;
7951            }
7952            return 0;
7953        }
7954    };
7955
7956    private static final Comparator<ProviderInfo> mProviderInitOrderSorter =
7957            new Comparator<ProviderInfo>() {
7958        public int compare(ProviderInfo p1, ProviderInfo p2) {
7959            final int v1 = p1.initOrder;
7960            final int v2 = p2.initOrder;
7961            return (v1 > v2) ? -1 : ((v1 < v2) ? 1 : 0);
7962        }
7963    };
7964
7965    static final void sendPackageBroadcast(String action, String pkg,
7966            Bundle extras, String targetPkg, IIntentReceiver finishedReceiver,
7967            int[] userIds) {
7968        IActivityManager am = ActivityManagerNative.getDefault();
7969        if (am != null) {
7970            try {
7971                if (userIds == null) {
7972                    userIds = am.getRunningUserIds();
7973                }
7974                for (int id : userIds) {
7975                    final Intent intent = new Intent(action,
7976                            pkg != null ? Uri.fromParts("package", pkg, null) : null);
7977                    if (extras != null) {
7978                        intent.putExtras(extras);
7979                    }
7980                    if (targetPkg != null) {
7981                        intent.setPackage(targetPkg);
7982                    }
7983                    // Modify the UID when posting to other users
7984                    int uid = intent.getIntExtra(Intent.EXTRA_UID, -1);
7985                    if (uid > 0 && UserHandle.getUserId(uid) != id) {
7986                        uid = UserHandle.getUid(id, UserHandle.getAppId(uid));
7987                        intent.putExtra(Intent.EXTRA_UID, uid);
7988                    }
7989                    intent.putExtra(Intent.EXTRA_USER_HANDLE, id);
7990                    intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT);
7991                    if (DEBUG_BROADCASTS) {
7992                        RuntimeException here = new RuntimeException("here");
7993                        here.fillInStackTrace();
7994                        Slog.d(TAG, "Sending to user " + id + ": "
7995                                + intent.toShortString(false, true, false, false)
7996                                + " " + intent.getExtras(), here);
7997                    }
7998                    am.broadcastIntent(null, intent, null, finishedReceiver,
7999                            0, null, null, null, android.app.AppOpsManager.OP_NONE,
8000                            finishedReceiver != null, false, id);
8001                }
8002            } catch (RemoteException ex) {
8003            }
8004        }
8005    }
8006
8007    /**
8008     * Check if the external storage media is available. This is true if there
8009     * is a mounted external storage medium or if the external storage is
8010     * emulated.
8011     */
8012    private boolean isExternalMediaAvailable() {
8013        return mMediaMounted || Environment.isExternalStorageEmulated();
8014    }
8015
8016    @Override
8017    public PackageCleanItem nextPackageToClean(PackageCleanItem lastPackage) {
8018        // writer
8019        synchronized (mPackages) {
8020            if (!isExternalMediaAvailable()) {
8021                // If the external storage is no longer mounted at this point,
8022                // the caller may not have been able to delete all of this
8023                // packages files and can not delete any more.  Bail.
8024                return null;
8025            }
8026            final ArrayList<PackageCleanItem> pkgs = mSettings.mPackagesToBeCleaned;
8027            if (lastPackage != null) {
8028                pkgs.remove(lastPackage);
8029            }
8030            if (pkgs.size() > 0) {
8031                return pkgs.get(0);
8032            }
8033        }
8034        return null;
8035    }
8036
8037    void schedulePackageCleaning(String packageName, int userId, boolean andCode) {
8038        final Message msg = mHandler.obtainMessage(START_CLEANING_PACKAGE,
8039                userId, andCode ? 1 : 0, packageName);
8040        if (mSystemReady) {
8041            msg.sendToTarget();
8042        } else {
8043            if (mPostSystemReadyMessages == null) {
8044                mPostSystemReadyMessages = new ArrayList<>();
8045            }
8046            mPostSystemReadyMessages.add(msg);
8047        }
8048    }
8049
8050    void startCleaningPackages() {
8051        // reader
8052        synchronized (mPackages) {
8053            if (!isExternalMediaAvailable()) {
8054                return;
8055            }
8056            if (mSettings.mPackagesToBeCleaned.isEmpty()) {
8057                return;
8058            }
8059        }
8060        Intent intent = new Intent(PackageManager.ACTION_CLEAN_EXTERNAL_STORAGE);
8061        intent.setComponent(DEFAULT_CONTAINER_COMPONENT);
8062        IActivityManager am = ActivityManagerNative.getDefault();
8063        if (am != null) {
8064            try {
8065                am.startService(null, intent, null, UserHandle.USER_OWNER);
8066            } catch (RemoteException e) {
8067            }
8068        }
8069    }
8070
8071    @Override
8072    public void installPackage(String originPath, IPackageInstallObserver2 observer,
8073            int installFlags, String installerPackageName, VerificationParams verificationParams,
8074            String packageAbiOverride) {
8075        installPackageAsUser(originPath, observer, installFlags, installerPackageName, verificationParams,
8076                packageAbiOverride, UserHandle.getCallingUserId());
8077    }
8078
8079    @Override
8080    public void installPackageAsUser(String originPath, IPackageInstallObserver2 observer,
8081            int installFlags, String installerPackageName, VerificationParams verificationParams,
8082            String packageAbiOverride, int userId) {
8083        mContext.enforceCallingOrSelfPermission(android.Manifest.permission.INSTALL_PACKAGES, null);
8084
8085        final int callingUid = Binder.getCallingUid();
8086        enforceCrossUserPermission(callingUid, userId, true, true, "installPackageAsUser");
8087
8088        if (isUserRestricted(userId, UserManager.DISALLOW_INSTALL_APPS)) {
8089            try {
8090                if (observer != null) {
8091                    observer.onPackageInstalled("", INSTALL_FAILED_USER_RESTRICTED, null, null);
8092                }
8093            } catch (RemoteException re) {
8094            }
8095            return;
8096        }
8097
8098        if ((callingUid == Process.SHELL_UID) || (callingUid == Process.ROOT_UID)) {
8099            installFlags |= PackageManager.INSTALL_FROM_ADB;
8100
8101        } else {
8102            // Caller holds INSTALL_PACKAGES permission, so we're less strict
8103            // about installerPackageName.
8104
8105            installFlags &= ~PackageManager.INSTALL_FROM_ADB;
8106            installFlags &= ~PackageManager.INSTALL_ALL_USERS;
8107        }
8108
8109        UserHandle user;
8110        if ((installFlags & PackageManager.INSTALL_ALL_USERS) != 0) {
8111            user = UserHandle.ALL;
8112        } else {
8113            user = new UserHandle(userId);
8114        }
8115
8116        verificationParams.setInstallerUid(callingUid);
8117
8118        final File originFile = new File(originPath);
8119        final OriginInfo origin = OriginInfo.fromUntrustedFile(originFile);
8120
8121        final Message msg = mHandler.obtainMessage(INIT_COPY);
8122        msg.obj = new InstallParams(origin, observer, installFlags,
8123                installerPackageName, verificationParams, user, packageAbiOverride);
8124        mHandler.sendMessage(msg);
8125    }
8126
8127    void installStage(String packageName, File stagedDir, String stagedCid,
8128            IPackageInstallObserver2 observer, PackageInstaller.SessionParams params,
8129            String installerPackageName, int installerUid, UserHandle user) {
8130        final VerificationParams verifParams = new VerificationParams(null, params.originatingUri,
8131                params.referrerUri, installerUid, null);
8132
8133        final OriginInfo origin;
8134        if (stagedDir != null) {
8135            origin = OriginInfo.fromStagedFile(stagedDir);
8136        } else {
8137            origin = OriginInfo.fromStagedContainer(stagedCid);
8138        }
8139
8140        final Message msg = mHandler.obtainMessage(INIT_COPY);
8141        msg.obj = new InstallParams(origin, observer, params.installFlags,
8142                installerPackageName, verifParams, user, params.abiOverride);
8143        mHandler.sendMessage(msg);
8144    }
8145
8146    private void sendPackageAddedForUser(String packageName, PackageSetting pkgSetting, int userId) {
8147        Bundle extras = new Bundle(1);
8148        extras.putInt(Intent.EXTRA_UID, UserHandle.getUid(userId, pkgSetting.appId));
8149
8150        sendPackageBroadcast(Intent.ACTION_PACKAGE_ADDED,
8151                packageName, extras, null, null, new int[] {userId});
8152        try {
8153            IActivityManager am = ActivityManagerNative.getDefault();
8154            final boolean isSystem =
8155                    isSystemApp(pkgSetting) || isUpdatedSystemApp(pkgSetting);
8156            if (isSystem && am.isUserRunning(userId, false)) {
8157                // The just-installed/enabled app is bundled on the system, so presumed
8158                // to be able to run automatically without needing an explicit launch.
8159                // Send it a BOOT_COMPLETED if it would ordinarily have gotten one.
8160                Intent bcIntent = new Intent(Intent.ACTION_BOOT_COMPLETED)
8161                        .addFlags(Intent.FLAG_INCLUDE_STOPPED_PACKAGES)
8162                        .setPackage(packageName);
8163                am.broadcastIntent(null, bcIntent, null, null, 0, null, null, null,
8164                        android.app.AppOpsManager.OP_NONE, false, false, userId);
8165            }
8166        } catch (RemoteException e) {
8167            // shouldn't happen
8168            Slog.w(TAG, "Unable to bootstrap installed package", e);
8169        }
8170    }
8171
8172    @Override
8173    public boolean setApplicationHiddenSettingAsUser(String packageName, boolean hidden,
8174            int userId) {
8175        mContext.enforceCallingOrSelfPermission(android.Manifest.permission.MANAGE_USERS, null);
8176        PackageSetting pkgSetting;
8177        final int uid = Binder.getCallingUid();
8178        enforceCrossUserPermission(uid, userId, true, true,
8179                "setApplicationHiddenSetting for user " + userId);
8180
8181        if (hidden && isPackageDeviceAdmin(packageName, userId)) {
8182            Slog.w(TAG, "Not hiding package " + packageName + ": has active device admin");
8183            return false;
8184        }
8185
8186        long callingId = Binder.clearCallingIdentity();
8187        try {
8188            boolean sendAdded = false;
8189            boolean sendRemoved = false;
8190            // writer
8191            synchronized (mPackages) {
8192                pkgSetting = mSettings.mPackages.get(packageName);
8193                if (pkgSetting == null) {
8194                    return false;
8195                }
8196                if (pkgSetting.getHidden(userId) != hidden) {
8197                    pkgSetting.setHidden(hidden, userId);
8198                    mSettings.writePackageRestrictionsLPr(userId);
8199                    if (hidden) {
8200                        sendRemoved = true;
8201                    } else {
8202                        sendAdded = true;
8203                    }
8204                }
8205            }
8206            if (sendAdded) {
8207                sendPackageAddedForUser(packageName, pkgSetting, userId);
8208                return true;
8209            }
8210            if (sendRemoved) {
8211                killApplication(packageName, UserHandle.getUid(userId, pkgSetting.appId),
8212                        "hiding pkg");
8213                sendApplicationHiddenForUser(packageName, pkgSetting, userId);
8214            }
8215        } finally {
8216            Binder.restoreCallingIdentity(callingId);
8217        }
8218        return false;
8219    }
8220
8221    private void sendApplicationHiddenForUser(String packageName, PackageSetting pkgSetting,
8222            int userId) {
8223        final PackageRemovedInfo info = new PackageRemovedInfo();
8224        info.removedPackage = packageName;
8225        info.removedUsers = new int[] {userId};
8226        info.uid = UserHandle.getUid(userId, pkgSetting.appId);
8227        info.sendBroadcast(false, false, false);
8228    }
8229
8230    /**
8231     * Returns true if application is not found or there was an error. Otherwise it returns
8232     * the hidden state of the package for the given user.
8233     */
8234    @Override
8235    public boolean getApplicationHiddenSettingAsUser(String packageName, int userId) {
8236        mContext.enforceCallingOrSelfPermission(android.Manifest.permission.MANAGE_USERS, null);
8237        enforceCrossUserPermission(Binder.getCallingUid(), userId, true,
8238                false, "getApplicationHidden for user " + userId);
8239        PackageSetting pkgSetting;
8240        long callingId = Binder.clearCallingIdentity();
8241        try {
8242            // writer
8243            synchronized (mPackages) {
8244                pkgSetting = mSettings.mPackages.get(packageName);
8245                if (pkgSetting == null) {
8246                    return true;
8247                }
8248                return pkgSetting.getHidden(userId);
8249            }
8250        } finally {
8251            Binder.restoreCallingIdentity(callingId);
8252        }
8253    }
8254
8255    /**
8256     * @hide
8257     */
8258    @Override
8259    public int installExistingPackageAsUser(String packageName, int userId) {
8260        mContext.enforceCallingOrSelfPermission(android.Manifest.permission.INSTALL_PACKAGES,
8261                null);
8262        PackageSetting pkgSetting;
8263        final int uid = Binder.getCallingUid();
8264        enforceCrossUserPermission(uid, userId, true, true, "installExistingPackage for user "
8265                + userId);
8266        if (isUserRestricted(userId, UserManager.DISALLOW_INSTALL_APPS)) {
8267            return PackageManager.INSTALL_FAILED_USER_RESTRICTED;
8268        }
8269
8270        long callingId = Binder.clearCallingIdentity();
8271        try {
8272            boolean sendAdded = false;
8273            Bundle extras = new Bundle(1);
8274
8275            // writer
8276            synchronized (mPackages) {
8277                pkgSetting = mSettings.mPackages.get(packageName);
8278                if (pkgSetting == null) {
8279                    return PackageManager.INSTALL_FAILED_INVALID_URI;
8280                }
8281                if (!pkgSetting.getInstalled(userId)) {
8282                    pkgSetting.setInstalled(true, userId);
8283                    pkgSetting.setHidden(false, userId);
8284                    mSettings.writePackageRestrictionsLPr(userId);
8285                    sendAdded = true;
8286                }
8287            }
8288
8289            if (sendAdded) {
8290                sendPackageAddedForUser(packageName, pkgSetting, userId);
8291            }
8292        } finally {
8293            Binder.restoreCallingIdentity(callingId);
8294        }
8295
8296        return PackageManager.INSTALL_SUCCEEDED;
8297    }
8298
8299    boolean isUserRestricted(int userId, String restrictionKey) {
8300        Bundle restrictions = sUserManager.getUserRestrictions(userId);
8301        if (restrictions.getBoolean(restrictionKey, false)) {
8302            Log.w(TAG, "User is restricted: " + restrictionKey);
8303            return true;
8304        }
8305        return false;
8306    }
8307
8308    @Override
8309    public void verifyPendingInstall(int id, int verificationCode) throws RemoteException {
8310        mContext.enforceCallingOrSelfPermission(
8311                android.Manifest.permission.PACKAGE_VERIFICATION_AGENT,
8312                "Only package verification agents can verify applications");
8313
8314        final Message msg = mHandler.obtainMessage(PACKAGE_VERIFIED);
8315        final PackageVerificationResponse response = new PackageVerificationResponse(
8316                verificationCode, Binder.getCallingUid());
8317        msg.arg1 = id;
8318        msg.obj = response;
8319        mHandler.sendMessage(msg);
8320    }
8321
8322    @Override
8323    public void extendVerificationTimeout(int id, int verificationCodeAtTimeout,
8324            long millisecondsToDelay) {
8325        mContext.enforceCallingOrSelfPermission(
8326                android.Manifest.permission.PACKAGE_VERIFICATION_AGENT,
8327                "Only package verification agents can extend verification timeouts");
8328
8329        final PackageVerificationState state = mPendingVerification.get(id);
8330        final PackageVerificationResponse response = new PackageVerificationResponse(
8331                verificationCodeAtTimeout, Binder.getCallingUid());
8332
8333        if (millisecondsToDelay > PackageManager.MAXIMUM_VERIFICATION_TIMEOUT) {
8334            millisecondsToDelay = PackageManager.MAXIMUM_VERIFICATION_TIMEOUT;
8335        }
8336        if (millisecondsToDelay < 0) {
8337            millisecondsToDelay = 0;
8338        }
8339        if ((verificationCodeAtTimeout != PackageManager.VERIFICATION_ALLOW)
8340                && (verificationCodeAtTimeout != PackageManager.VERIFICATION_REJECT)) {
8341            verificationCodeAtTimeout = PackageManager.VERIFICATION_REJECT;
8342        }
8343
8344        if ((state != null) && !state.timeoutExtended()) {
8345            state.extendTimeout();
8346
8347            final Message msg = mHandler.obtainMessage(PACKAGE_VERIFIED);
8348            msg.arg1 = id;
8349            msg.obj = response;
8350            mHandler.sendMessageDelayed(msg, millisecondsToDelay);
8351        }
8352    }
8353
8354    private void broadcastPackageVerified(int verificationId, Uri packageUri,
8355            int verificationCode, UserHandle user) {
8356        final Intent intent = new Intent(Intent.ACTION_PACKAGE_VERIFIED);
8357        intent.setDataAndType(packageUri, PACKAGE_MIME_TYPE);
8358        intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
8359        intent.putExtra(PackageManager.EXTRA_VERIFICATION_ID, verificationId);
8360        intent.putExtra(PackageManager.EXTRA_VERIFICATION_RESULT, verificationCode);
8361
8362        mContext.sendBroadcastAsUser(intent, user,
8363                android.Manifest.permission.PACKAGE_VERIFICATION_AGENT);
8364    }
8365
8366    private ComponentName matchComponentForVerifier(String packageName,
8367            List<ResolveInfo> receivers) {
8368        ActivityInfo targetReceiver = null;
8369
8370        final int NR = receivers.size();
8371        for (int i = 0; i < NR; i++) {
8372            final ResolveInfo info = receivers.get(i);
8373            if (info.activityInfo == null) {
8374                continue;
8375            }
8376
8377            if (packageName.equals(info.activityInfo.packageName)) {
8378                targetReceiver = info.activityInfo;
8379                break;
8380            }
8381        }
8382
8383        if (targetReceiver == null) {
8384            return null;
8385        }
8386
8387        return new ComponentName(targetReceiver.packageName, targetReceiver.name);
8388    }
8389
8390    private List<ComponentName> matchVerifiers(PackageInfoLite pkgInfo,
8391            List<ResolveInfo> receivers, final PackageVerificationState verificationState) {
8392        if (pkgInfo.verifiers.length == 0) {
8393            return null;
8394        }
8395
8396        final int N = pkgInfo.verifiers.length;
8397        final List<ComponentName> sufficientVerifiers = new ArrayList<ComponentName>(N + 1);
8398        for (int i = 0; i < N; i++) {
8399            final VerifierInfo verifierInfo = pkgInfo.verifiers[i];
8400
8401            final ComponentName comp = matchComponentForVerifier(verifierInfo.packageName,
8402                    receivers);
8403            if (comp == null) {
8404                continue;
8405            }
8406
8407            final int verifierUid = getUidForVerifier(verifierInfo);
8408            if (verifierUid == -1) {
8409                continue;
8410            }
8411
8412            if (DEBUG_VERIFY) {
8413                Slog.d(TAG, "Added sufficient verifier " + verifierInfo.packageName
8414                        + " with the correct signature");
8415            }
8416            sufficientVerifiers.add(comp);
8417            verificationState.addSufficientVerifier(verifierUid);
8418        }
8419
8420        return sufficientVerifiers;
8421    }
8422
8423    private int getUidForVerifier(VerifierInfo verifierInfo) {
8424        synchronized (mPackages) {
8425            final PackageParser.Package pkg = mPackages.get(verifierInfo.packageName);
8426            if (pkg == null) {
8427                return -1;
8428            } else if (pkg.mSignatures.length != 1) {
8429                Slog.i(TAG, "Verifier package " + verifierInfo.packageName
8430                        + " has more than one signature; ignoring");
8431                return -1;
8432            }
8433
8434            /*
8435             * If the public key of the package's signature does not match
8436             * our expected public key, then this is a different package and
8437             * we should skip.
8438             */
8439
8440            final byte[] expectedPublicKey;
8441            try {
8442                final Signature verifierSig = pkg.mSignatures[0];
8443                final PublicKey publicKey = verifierSig.getPublicKey();
8444                expectedPublicKey = publicKey.getEncoded();
8445            } catch (CertificateException e) {
8446                return -1;
8447            }
8448
8449            final byte[] actualPublicKey = verifierInfo.publicKey.getEncoded();
8450
8451            if (!Arrays.equals(actualPublicKey, expectedPublicKey)) {
8452                Slog.i(TAG, "Verifier package " + verifierInfo.packageName
8453                        + " does not have the expected public key; ignoring");
8454                return -1;
8455            }
8456
8457            return pkg.applicationInfo.uid;
8458        }
8459    }
8460
8461    @Override
8462    public void finishPackageInstall(int token) {
8463        enforceSystemOrRoot("Only the system is allowed to finish installs");
8464
8465        if (DEBUG_INSTALL) {
8466            Slog.v(TAG, "BM finishing package install for " + token);
8467        }
8468
8469        final Message msg = mHandler.obtainMessage(POST_INSTALL, token, 0);
8470        mHandler.sendMessage(msg);
8471    }
8472
8473    /**
8474     * Get the verification agent timeout.
8475     *
8476     * @return verification timeout in milliseconds
8477     */
8478    private long getVerificationTimeout() {
8479        return android.provider.Settings.Global.getLong(mContext.getContentResolver(),
8480                android.provider.Settings.Global.PACKAGE_VERIFIER_TIMEOUT,
8481                DEFAULT_VERIFICATION_TIMEOUT);
8482    }
8483
8484    /**
8485     * Get the default verification agent response code.
8486     *
8487     * @return default verification response code
8488     */
8489    private int getDefaultVerificationResponse() {
8490        return android.provider.Settings.Global.getInt(mContext.getContentResolver(),
8491                android.provider.Settings.Global.PACKAGE_VERIFIER_DEFAULT_RESPONSE,
8492                DEFAULT_VERIFICATION_RESPONSE);
8493    }
8494
8495    /**
8496     * Check whether or not package verification has been enabled.
8497     *
8498     * @return true if verification should be performed
8499     */
8500    private boolean isVerificationEnabled(int userId, int installFlags) {
8501        if (!DEFAULT_VERIFY_ENABLE) {
8502            return false;
8503        }
8504
8505        boolean ensureVerifyAppsEnabled = isUserRestricted(userId, UserManager.ENSURE_VERIFY_APPS);
8506
8507        // Check if installing from ADB
8508        if ((installFlags & PackageManager.INSTALL_FROM_ADB) != 0) {
8509            // Do not run verification in a test harness environment
8510            if (ActivityManager.isRunningInTestHarness()) {
8511                return false;
8512            }
8513            if (ensureVerifyAppsEnabled) {
8514                return true;
8515            }
8516            // Check if the developer does not want package verification for ADB installs
8517            if (android.provider.Settings.Global.getInt(mContext.getContentResolver(),
8518                    android.provider.Settings.Global.PACKAGE_VERIFIER_INCLUDE_ADB, 1) == 0) {
8519                return false;
8520            }
8521        }
8522
8523        if (ensureVerifyAppsEnabled) {
8524            return true;
8525        }
8526
8527        return android.provider.Settings.Global.getInt(mContext.getContentResolver(),
8528                android.provider.Settings.Global.PACKAGE_VERIFIER_ENABLE, 1) == 1;
8529    }
8530
8531    /**
8532     * Get the "allow unknown sources" setting.
8533     *
8534     * @return the current "allow unknown sources" setting
8535     */
8536    private int getUnknownSourcesSettings() {
8537        return android.provider.Settings.Global.getInt(mContext.getContentResolver(),
8538                android.provider.Settings.Global.INSTALL_NON_MARKET_APPS,
8539                -1);
8540    }
8541
8542    @Override
8543    public void setInstallerPackageName(String targetPackage, String installerPackageName) {
8544        final int uid = Binder.getCallingUid();
8545        // writer
8546        synchronized (mPackages) {
8547            PackageSetting targetPackageSetting = mSettings.mPackages.get(targetPackage);
8548            if (targetPackageSetting == null) {
8549                throw new IllegalArgumentException("Unknown target package: " + targetPackage);
8550            }
8551
8552            PackageSetting installerPackageSetting;
8553            if (installerPackageName != null) {
8554                installerPackageSetting = mSettings.mPackages.get(installerPackageName);
8555                if (installerPackageSetting == null) {
8556                    throw new IllegalArgumentException("Unknown installer package: "
8557                            + installerPackageName);
8558                }
8559            } else {
8560                installerPackageSetting = null;
8561            }
8562
8563            Signature[] callerSignature;
8564            Object obj = mSettings.getUserIdLPr(uid);
8565            if (obj != null) {
8566                if (obj instanceof SharedUserSetting) {
8567                    callerSignature = ((SharedUserSetting)obj).signatures.mSignatures;
8568                } else if (obj instanceof PackageSetting) {
8569                    callerSignature = ((PackageSetting)obj).signatures.mSignatures;
8570                } else {
8571                    throw new SecurityException("Bad object " + obj + " for uid " + uid);
8572                }
8573            } else {
8574                throw new SecurityException("Unknown calling uid " + uid);
8575            }
8576
8577            // Verify: can't set installerPackageName to a package that is
8578            // not signed with the same cert as the caller.
8579            if (installerPackageSetting != null) {
8580                if (compareSignatures(callerSignature,
8581                        installerPackageSetting.signatures.mSignatures)
8582                        != PackageManager.SIGNATURE_MATCH) {
8583                    throw new SecurityException(
8584                            "Caller does not have same cert as new installer package "
8585                            + installerPackageName);
8586                }
8587            }
8588
8589            // Verify: if target already has an installer package, it must
8590            // be signed with the same cert as the caller.
8591            if (targetPackageSetting.installerPackageName != null) {
8592                PackageSetting setting = mSettings.mPackages.get(
8593                        targetPackageSetting.installerPackageName);
8594                // If the currently set package isn't valid, then it's always
8595                // okay to change it.
8596                if (setting != null) {
8597                    if (compareSignatures(callerSignature,
8598                            setting.signatures.mSignatures)
8599                            != PackageManager.SIGNATURE_MATCH) {
8600                        throw new SecurityException(
8601                                "Caller does not have same cert as old installer package "
8602                                + targetPackageSetting.installerPackageName);
8603                    }
8604                }
8605            }
8606
8607            // Okay!
8608            targetPackageSetting.installerPackageName = installerPackageName;
8609            scheduleWriteSettingsLocked();
8610        }
8611    }
8612
8613    private void processPendingInstall(final InstallArgs args, final int currentStatus) {
8614        // Queue up an async operation since the package installation may take a little while.
8615        mHandler.post(new Runnable() {
8616            public void run() {
8617                mHandler.removeCallbacks(this);
8618                 // Result object to be returned
8619                PackageInstalledInfo res = new PackageInstalledInfo();
8620                res.returnCode = currentStatus;
8621                res.uid = -1;
8622                res.pkg = null;
8623                res.removedInfo = new PackageRemovedInfo();
8624                if (res.returnCode == PackageManager.INSTALL_SUCCEEDED) {
8625                    args.doPreInstall(res.returnCode);
8626                    synchronized (mInstallLock) {
8627                        installPackageLI(args, res);
8628                    }
8629                    args.doPostInstall(res.returnCode, res.uid);
8630                }
8631
8632                // A restore should be performed at this point if (a) the install
8633                // succeeded, (b) the operation is not an update, and (c) the new
8634                // package has not opted out of backup participation.
8635                final boolean update = res.removedInfo.removedPackage != null;
8636                final int flags = (res.pkg == null) ? 0 : res.pkg.applicationInfo.flags;
8637                boolean doRestore = !update
8638                        && ((flags & ApplicationInfo.FLAG_ALLOW_BACKUP) != 0);
8639
8640                // Set up the post-install work request bookkeeping.  This will be used
8641                // and cleaned up by the post-install event handling regardless of whether
8642                // there's a restore pass performed.  Token values are >= 1.
8643                int token;
8644                if (mNextInstallToken < 0) mNextInstallToken = 1;
8645                token = mNextInstallToken++;
8646
8647                PostInstallData data = new PostInstallData(args, res);
8648                mRunningInstalls.put(token, data);
8649                if (DEBUG_INSTALL) Log.v(TAG, "+ starting restore round-trip " + token);
8650
8651                if (res.returnCode == PackageManager.INSTALL_SUCCEEDED && doRestore) {
8652                    // Pass responsibility to the Backup Manager.  It will perform a
8653                    // restore if appropriate, then pass responsibility back to the
8654                    // Package Manager to run the post-install observer callbacks
8655                    // and broadcasts.
8656                    IBackupManager bm = IBackupManager.Stub.asInterface(
8657                            ServiceManager.getService(Context.BACKUP_SERVICE));
8658                    if (bm != null) {
8659                        if (DEBUG_INSTALL) Log.v(TAG, "token " + token
8660                                + " to BM for possible restore");
8661                        try {
8662                            bm.restoreAtInstall(res.pkg.applicationInfo.packageName, token);
8663                        } catch (RemoteException e) {
8664                            // can't happen; the backup manager is local
8665                        } catch (Exception e) {
8666                            Slog.e(TAG, "Exception trying to enqueue restore", e);
8667                            doRestore = false;
8668                        }
8669                    } else {
8670                        Slog.e(TAG, "Backup Manager not found!");
8671                        doRestore = false;
8672                    }
8673                }
8674
8675                if (!doRestore) {
8676                    // No restore possible, or the Backup Manager was mysteriously not
8677                    // available -- just fire the post-install work request directly.
8678                    if (DEBUG_INSTALL) Log.v(TAG, "No restore - queue post-install for " + token);
8679                    Message msg = mHandler.obtainMessage(POST_INSTALL, token, 0);
8680                    mHandler.sendMessage(msg);
8681                }
8682            }
8683        });
8684    }
8685
8686    private abstract class HandlerParams {
8687        private static final int MAX_RETRIES = 4;
8688
8689        /**
8690         * Number of times startCopy() has been attempted and had a non-fatal
8691         * error.
8692         */
8693        private int mRetries = 0;
8694
8695        /** User handle for the user requesting the information or installation. */
8696        private final UserHandle mUser;
8697
8698        HandlerParams(UserHandle user) {
8699            mUser = user;
8700        }
8701
8702        UserHandle getUser() {
8703            return mUser;
8704        }
8705
8706        final boolean startCopy() {
8707            boolean res;
8708            try {
8709                if (DEBUG_INSTALL) Slog.i(TAG, "startCopy " + mUser + ": " + this);
8710
8711                if (++mRetries > MAX_RETRIES) {
8712                    Slog.w(TAG, "Failed to invoke remote methods on default container service. Giving up");
8713                    mHandler.sendEmptyMessage(MCS_GIVE_UP);
8714                    handleServiceError();
8715                    return false;
8716                } else {
8717                    handleStartCopy();
8718                    res = true;
8719                }
8720            } catch (RemoteException e) {
8721                if (DEBUG_INSTALL) Slog.i(TAG, "Posting install MCS_RECONNECT");
8722                mHandler.sendEmptyMessage(MCS_RECONNECT);
8723                res = false;
8724            }
8725            handleReturnCode();
8726            return res;
8727        }
8728
8729        final void serviceError() {
8730            if (DEBUG_INSTALL) Slog.i(TAG, "serviceError");
8731            handleServiceError();
8732            handleReturnCode();
8733        }
8734
8735        abstract void handleStartCopy() throws RemoteException;
8736        abstract void handleServiceError();
8737        abstract void handleReturnCode();
8738    }
8739
8740    class MeasureParams extends HandlerParams {
8741        private final PackageStats mStats;
8742        private boolean mSuccess;
8743
8744        private final IPackageStatsObserver mObserver;
8745
8746        public MeasureParams(PackageStats stats, IPackageStatsObserver observer) {
8747            super(new UserHandle(stats.userHandle));
8748            mObserver = observer;
8749            mStats = stats;
8750        }
8751
8752        @Override
8753        public String toString() {
8754            return "MeasureParams{"
8755                + Integer.toHexString(System.identityHashCode(this))
8756                + " " + mStats.packageName + "}";
8757        }
8758
8759        @Override
8760        void handleStartCopy() throws RemoteException {
8761            synchronized (mInstallLock) {
8762                mSuccess = getPackageSizeInfoLI(mStats.packageName, mStats.userHandle, mStats);
8763            }
8764
8765            if (mSuccess) {
8766                final boolean mounted;
8767                if (Environment.isExternalStorageEmulated()) {
8768                    mounted = true;
8769                } else {
8770                    final String status = Environment.getExternalStorageState();
8771                    mounted = (Environment.MEDIA_MOUNTED.equals(status)
8772                            || Environment.MEDIA_MOUNTED_READ_ONLY.equals(status));
8773                }
8774
8775                if (mounted) {
8776                    final UserEnvironment userEnv = new UserEnvironment(mStats.userHandle);
8777
8778                    mStats.externalCacheSize = calculateDirectorySize(mContainerService,
8779                            userEnv.buildExternalStorageAppCacheDirs(mStats.packageName));
8780
8781                    mStats.externalDataSize = calculateDirectorySize(mContainerService,
8782                            userEnv.buildExternalStorageAppDataDirs(mStats.packageName));
8783
8784                    // Always subtract cache size, since it's a subdirectory
8785                    mStats.externalDataSize -= mStats.externalCacheSize;
8786
8787                    mStats.externalMediaSize = calculateDirectorySize(mContainerService,
8788                            userEnv.buildExternalStorageAppMediaDirs(mStats.packageName));
8789
8790                    mStats.externalObbSize = calculateDirectorySize(mContainerService,
8791                            userEnv.buildExternalStorageAppObbDirs(mStats.packageName));
8792                }
8793            }
8794        }
8795
8796        @Override
8797        void handleReturnCode() {
8798            if (mObserver != null) {
8799                try {
8800                    mObserver.onGetStatsCompleted(mStats, mSuccess);
8801                } catch (RemoteException e) {
8802                    Slog.i(TAG, "Observer no longer exists.");
8803                }
8804            }
8805        }
8806
8807        @Override
8808        void handleServiceError() {
8809            Slog.e(TAG, "Could not measure application " + mStats.packageName
8810                            + " external storage");
8811        }
8812    }
8813
8814    private static long calculateDirectorySize(IMediaContainerService mcs, File[] paths)
8815            throws RemoteException {
8816        long result = 0;
8817        for (File path : paths) {
8818            result += mcs.calculateDirectorySize(path.getAbsolutePath());
8819        }
8820        return result;
8821    }
8822
8823    private static void clearDirectory(IMediaContainerService mcs, File[] paths) {
8824        for (File path : paths) {
8825            try {
8826                mcs.clearDirectory(path.getAbsolutePath());
8827            } catch (RemoteException e) {
8828            }
8829        }
8830    }
8831
8832    static class OriginInfo {
8833        /**
8834         * Location where install is coming from, before it has been
8835         * copied/renamed into place. This could be a single monolithic APK
8836         * file, or a cluster directory. This location may be untrusted.
8837         */
8838        final File file;
8839        final String cid;
8840
8841        /**
8842         * Flag indicating that {@link #file} or {@link #cid} has already been
8843         * staged, meaning downstream users don't need to defensively copy the
8844         * contents.
8845         */
8846        final boolean staged;
8847
8848        /**
8849         * Flag indicating that {@link #file} or {@link #cid} is an already
8850         * installed app that is being moved.
8851         */
8852        final boolean existing;
8853
8854        final String resolvedPath;
8855        final File resolvedFile;
8856
8857        static OriginInfo fromNothing() {
8858            return new OriginInfo(null, null, false, false);
8859        }
8860
8861        static OriginInfo fromUntrustedFile(File file) {
8862            return new OriginInfo(file, null, false, false);
8863        }
8864
8865        static OriginInfo fromExistingFile(File file) {
8866            return new OriginInfo(file, null, false, true);
8867        }
8868
8869        static OriginInfo fromStagedFile(File file) {
8870            return new OriginInfo(file, null, true, false);
8871        }
8872
8873        static OriginInfo fromStagedContainer(String cid) {
8874            return new OriginInfo(null, cid, true, false);
8875        }
8876
8877        private OriginInfo(File file, String cid, boolean staged, boolean existing) {
8878            this.file = file;
8879            this.cid = cid;
8880            this.staged = staged;
8881            this.existing = existing;
8882
8883            if (cid != null) {
8884                resolvedPath = PackageHelper.getSdDir(cid);
8885                resolvedFile = new File(resolvedPath);
8886            } else if (file != null) {
8887                resolvedPath = file.getAbsolutePath();
8888                resolvedFile = file;
8889            } else {
8890                resolvedPath = null;
8891                resolvedFile = null;
8892            }
8893        }
8894    }
8895
8896    class InstallParams extends HandlerParams {
8897        final OriginInfo origin;
8898        final IPackageInstallObserver2 observer;
8899        int installFlags;
8900        final String installerPackageName;
8901        final VerificationParams verificationParams;
8902        private InstallArgs mArgs;
8903        private int mRet;
8904        final String packageAbiOverride;
8905
8906        InstallParams(OriginInfo origin, IPackageInstallObserver2 observer, int installFlags,
8907                String installerPackageName, VerificationParams verificationParams, UserHandle user,
8908                String packageAbiOverride) {
8909            super(user);
8910            this.origin = origin;
8911            this.observer = observer;
8912            this.installFlags = installFlags;
8913            this.installerPackageName = installerPackageName;
8914            this.verificationParams = verificationParams;
8915            this.packageAbiOverride = packageAbiOverride;
8916        }
8917
8918        @Override
8919        public String toString() {
8920            return "InstallParams{" + Integer.toHexString(System.identityHashCode(this))
8921                    + " file=" + origin.file + " cid=" + origin.cid + "}";
8922        }
8923
8924        public ManifestDigest getManifestDigest() {
8925            if (verificationParams == null) {
8926                return null;
8927            }
8928            return verificationParams.getManifestDigest();
8929        }
8930
8931        private int installLocationPolicy(PackageInfoLite pkgLite) {
8932            String packageName = pkgLite.packageName;
8933            int installLocation = pkgLite.installLocation;
8934            boolean onSd = (installFlags & PackageManager.INSTALL_EXTERNAL) != 0;
8935            // reader
8936            synchronized (mPackages) {
8937                PackageParser.Package pkg = mPackages.get(packageName);
8938                if (pkg != null) {
8939                    if ((installFlags & PackageManager.INSTALL_REPLACE_EXISTING) != 0) {
8940                        // Check for downgrading.
8941                        if ((installFlags & PackageManager.INSTALL_ALLOW_DOWNGRADE) == 0) {
8942                            try {
8943                                checkDowngrade(pkg, pkgLite);
8944                            } catch (PackageManagerException e) {
8945                                Slog.w(TAG, "Downgrade detected: " + e.getMessage());
8946                                return PackageHelper.RECOMMEND_FAILED_VERSION_DOWNGRADE;
8947                            }
8948                        }
8949                        // Check for updated system application.
8950                        if ((pkg.applicationInfo.flags & ApplicationInfo.FLAG_SYSTEM) != 0) {
8951                            if (onSd) {
8952                                Slog.w(TAG, "Cannot install update to system app on sdcard");
8953                                return PackageHelper.RECOMMEND_FAILED_INVALID_LOCATION;
8954                            }
8955                            return PackageHelper.RECOMMEND_INSTALL_INTERNAL;
8956                        } else {
8957                            if (onSd) {
8958                                // Install flag overrides everything.
8959                                return PackageHelper.RECOMMEND_INSTALL_EXTERNAL;
8960                            }
8961                            // If current upgrade specifies particular preference
8962                            if (installLocation == PackageInfo.INSTALL_LOCATION_INTERNAL_ONLY) {
8963                                // Application explicitly specified internal.
8964                                return PackageHelper.RECOMMEND_INSTALL_INTERNAL;
8965                            } else if (installLocation == PackageInfo.INSTALL_LOCATION_PREFER_EXTERNAL) {
8966                                // App explictly prefers external. Let policy decide
8967                            } else {
8968                                // Prefer previous location
8969                                if (isExternal(pkg)) {
8970                                    return PackageHelper.RECOMMEND_INSTALL_EXTERNAL;
8971                                }
8972                                return PackageHelper.RECOMMEND_INSTALL_INTERNAL;
8973                            }
8974                        }
8975                    } else {
8976                        // Invalid install. Return error code
8977                        return PackageHelper.RECOMMEND_FAILED_ALREADY_EXISTS;
8978                    }
8979                }
8980            }
8981            // All the special cases have been taken care of.
8982            // Return result based on recommended install location.
8983            if (onSd) {
8984                return PackageHelper.RECOMMEND_INSTALL_EXTERNAL;
8985            }
8986            return pkgLite.recommendedInstallLocation;
8987        }
8988
8989        /*
8990         * Invoke remote method to get package information and install
8991         * location values. Override install location based on default
8992         * policy if needed and then create install arguments based
8993         * on the install location.
8994         */
8995        public void handleStartCopy() throws RemoteException {
8996            int ret = PackageManager.INSTALL_SUCCEEDED;
8997
8998            // If we're already staged, we've firmly committed to an install location
8999            if (origin.staged) {
9000                if (origin.file != null) {
9001                    installFlags |= PackageManager.INSTALL_INTERNAL;
9002                    installFlags &= ~PackageManager.INSTALL_EXTERNAL;
9003                } else if (origin.cid != null) {
9004                    installFlags |= PackageManager.INSTALL_EXTERNAL;
9005                    installFlags &= ~PackageManager.INSTALL_INTERNAL;
9006                } else {
9007                    throw new IllegalStateException("Invalid stage location");
9008                }
9009            }
9010
9011            final boolean onSd = (installFlags & PackageManager.INSTALL_EXTERNAL) != 0;
9012            final boolean onInt = (installFlags & PackageManager.INSTALL_INTERNAL) != 0;
9013
9014            PackageInfoLite pkgLite = null;
9015
9016            if (onInt && onSd) {
9017                // Check if both bits are set.
9018                Slog.w(TAG, "Conflicting flags specified for installing on both internal and external");
9019                ret = PackageManager.INSTALL_FAILED_INVALID_INSTALL_LOCATION;
9020            } else {
9021                pkgLite = mContainerService.getMinimalPackageInfo(origin.resolvedPath, installFlags,
9022                        packageAbiOverride);
9023
9024                /*
9025                 * If we have too little free space, try to free cache
9026                 * before giving up.
9027                 */
9028                if (!origin.staged && pkgLite.recommendedInstallLocation
9029                        == PackageHelper.RECOMMEND_FAILED_INSUFFICIENT_STORAGE) {
9030                    // TODO: focus freeing disk space on the target device
9031                    final StorageManager storage = StorageManager.from(mContext);
9032                    final long lowThreshold = storage.getStorageLowBytes(
9033                            Environment.getDataDirectory());
9034
9035                    final long sizeBytes = mContainerService.calculateInstalledSize(
9036                            origin.resolvedPath, isForwardLocked(), packageAbiOverride);
9037
9038                    if (mInstaller.freeCache(sizeBytes + lowThreshold) >= 0) {
9039                        pkgLite = mContainerService.getMinimalPackageInfo(origin.resolvedPath,
9040                                installFlags, packageAbiOverride);
9041                    }
9042
9043                    /*
9044                     * The cache free must have deleted the file we
9045                     * downloaded to install.
9046                     *
9047                     * TODO: fix the "freeCache" call to not delete
9048                     *       the file we care about.
9049                     */
9050                    if (pkgLite.recommendedInstallLocation
9051                            == PackageHelper.RECOMMEND_FAILED_INVALID_URI) {
9052                        pkgLite.recommendedInstallLocation
9053                            = PackageHelper.RECOMMEND_FAILED_INSUFFICIENT_STORAGE;
9054                    }
9055                }
9056            }
9057
9058            if (ret == PackageManager.INSTALL_SUCCEEDED) {
9059                int loc = pkgLite.recommendedInstallLocation;
9060                if (loc == PackageHelper.RECOMMEND_FAILED_INVALID_LOCATION) {
9061                    ret = PackageManager.INSTALL_FAILED_INVALID_INSTALL_LOCATION;
9062                } else if (loc == PackageHelper.RECOMMEND_FAILED_ALREADY_EXISTS) {
9063                    ret = PackageManager.INSTALL_FAILED_ALREADY_EXISTS;
9064                } else if (loc == PackageHelper.RECOMMEND_FAILED_INSUFFICIENT_STORAGE) {
9065                    ret = PackageManager.INSTALL_FAILED_INSUFFICIENT_STORAGE;
9066                } else if (loc == PackageHelper.RECOMMEND_FAILED_INVALID_APK) {
9067                    ret = PackageManager.INSTALL_FAILED_INVALID_APK;
9068                } else if (loc == PackageHelper.RECOMMEND_FAILED_INVALID_URI) {
9069                    ret = PackageManager.INSTALL_FAILED_INVALID_URI;
9070                } else if (loc == PackageHelper.RECOMMEND_MEDIA_UNAVAILABLE) {
9071                    ret = PackageManager.INSTALL_FAILED_MEDIA_UNAVAILABLE;
9072                } else {
9073                    // Override with defaults if needed.
9074                    loc = installLocationPolicy(pkgLite);
9075                    if (loc == PackageHelper.RECOMMEND_FAILED_VERSION_DOWNGRADE) {
9076                        ret = PackageManager.INSTALL_FAILED_VERSION_DOWNGRADE;
9077                    } else if (!onSd && !onInt) {
9078                        // Override install location with flags
9079                        if (loc == PackageHelper.RECOMMEND_INSTALL_EXTERNAL) {
9080                            // Set the flag to install on external media.
9081                            installFlags |= PackageManager.INSTALL_EXTERNAL;
9082                            installFlags &= ~PackageManager.INSTALL_INTERNAL;
9083                        } else {
9084                            // Make sure the flag for installing on external
9085                            // media is unset
9086                            installFlags |= PackageManager.INSTALL_INTERNAL;
9087                            installFlags &= ~PackageManager.INSTALL_EXTERNAL;
9088                        }
9089                    }
9090                }
9091            }
9092
9093            final InstallArgs args = createInstallArgs(this);
9094            mArgs = args;
9095
9096            if (ret == PackageManager.INSTALL_SUCCEEDED) {
9097                 /*
9098                 * ADB installs appear as UserHandle.USER_ALL, and can only be performed by
9099                 * UserHandle.USER_OWNER, so use the package verifier for UserHandle.USER_OWNER.
9100                 */
9101                int userIdentifier = getUser().getIdentifier();
9102                if (userIdentifier == UserHandle.USER_ALL
9103                        && ((installFlags & PackageManager.INSTALL_FROM_ADB) != 0)) {
9104                    userIdentifier = UserHandle.USER_OWNER;
9105                }
9106
9107                /*
9108                 * Determine if we have any installed package verifiers. If we
9109                 * do, then we'll defer to them to verify the packages.
9110                 */
9111                final int requiredUid = mRequiredVerifierPackage == null ? -1
9112                        : getPackageUid(mRequiredVerifierPackage, userIdentifier);
9113                if (!origin.existing && requiredUid != -1
9114                        && isVerificationEnabled(userIdentifier, installFlags)) {
9115                    final Intent verification = new Intent(
9116                            Intent.ACTION_PACKAGE_NEEDS_VERIFICATION);
9117                    verification.addFlags(Intent.FLAG_RECEIVER_FOREGROUND);
9118                    verification.setDataAndType(Uri.fromFile(new File(origin.resolvedPath)),
9119                            PACKAGE_MIME_TYPE);
9120                    verification.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
9121
9122                    final List<ResolveInfo> receivers = queryIntentReceivers(verification,
9123                            PACKAGE_MIME_TYPE, PackageManager.GET_DISABLED_COMPONENTS,
9124                            0 /* TODO: Which userId? */);
9125
9126                    if (DEBUG_VERIFY) {
9127                        Slog.d(TAG, "Found " + receivers.size() + " verifiers for intent "
9128                                + verification.toString() + " with " + pkgLite.verifiers.length
9129                                + " optional verifiers");
9130                    }
9131
9132                    final int verificationId = mPendingVerificationToken++;
9133
9134                    verification.putExtra(PackageManager.EXTRA_VERIFICATION_ID, verificationId);
9135
9136                    verification.putExtra(PackageManager.EXTRA_VERIFICATION_INSTALLER_PACKAGE,
9137                            installerPackageName);
9138
9139                    verification.putExtra(PackageManager.EXTRA_VERIFICATION_INSTALL_FLAGS,
9140                            installFlags);
9141
9142                    verification.putExtra(PackageManager.EXTRA_VERIFICATION_PACKAGE_NAME,
9143                            pkgLite.packageName);
9144
9145                    verification.putExtra(PackageManager.EXTRA_VERIFICATION_VERSION_CODE,
9146                            pkgLite.versionCode);
9147
9148                    if (verificationParams != null) {
9149                        if (verificationParams.getVerificationURI() != null) {
9150                           verification.putExtra(PackageManager.EXTRA_VERIFICATION_URI,
9151                                 verificationParams.getVerificationURI());
9152                        }
9153                        if (verificationParams.getOriginatingURI() != null) {
9154                            verification.putExtra(Intent.EXTRA_ORIGINATING_URI,
9155                                  verificationParams.getOriginatingURI());
9156                        }
9157                        if (verificationParams.getReferrer() != null) {
9158                            verification.putExtra(Intent.EXTRA_REFERRER,
9159                                  verificationParams.getReferrer());
9160                        }
9161                        if (verificationParams.getOriginatingUid() >= 0) {
9162                            verification.putExtra(Intent.EXTRA_ORIGINATING_UID,
9163                                  verificationParams.getOriginatingUid());
9164                        }
9165                        if (verificationParams.getInstallerUid() >= 0) {
9166                            verification.putExtra(PackageManager.EXTRA_VERIFICATION_INSTALLER_UID,
9167                                  verificationParams.getInstallerUid());
9168                        }
9169                    }
9170
9171                    final PackageVerificationState verificationState = new PackageVerificationState(
9172                            requiredUid, args);
9173
9174                    mPendingVerification.append(verificationId, verificationState);
9175
9176                    final List<ComponentName> sufficientVerifiers = matchVerifiers(pkgLite,
9177                            receivers, verificationState);
9178
9179                    /*
9180                     * If any sufficient verifiers were listed in the package
9181                     * manifest, attempt to ask them.
9182                     */
9183                    if (sufficientVerifiers != null) {
9184                        final int N = sufficientVerifiers.size();
9185                        if (N == 0) {
9186                            Slog.i(TAG, "Additional verifiers required, but none installed.");
9187                            ret = PackageManager.INSTALL_FAILED_VERIFICATION_FAILURE;
9188                        } else {
9189                            for (int i = 0; i < N; i++) {
9190                                final ComponentName verifierComponent = sufficientVerifiers.get(i);
9191
9192                                final Intent sufficientIntent = new Intent(verification);
9193                                sufficientIntent.setComponent(verifierComponent);
9194
9195                                mContext.sendBroadcastAsUser(sufficientIntent, getUser());
9196                            }
9197                        }
9198                    }
9199
9200                    final ComponentName requiredVerifierComponent = matchComponentForVerifier(
9201                            mRequiredVerifierPackage, receivers);
9202                    if (ret == PackageManager.INSTALL_SUCCEEDED
9203                            && mRequiredVerifierPackage != null) {
9204                        /*
9205                         * Send the intent to the required verification agent,
9206                         * but only start the verification timeout after the
9207                         * target BroadcastReceivers have run.
9208                         */
9209                        verification.setComponent(requiredVerifierComponent);
9210                        mContext.sendOrderedBroadcastAsUser(verification, getUser(),
9211                                android.Manifest.permission.PACKAGE_VERIFICATION_AGENT,
9212                                new BroadcastReceiver() {
9213                                    @Override
9214                                    public void onReceive(Context context, Intent intent) {
9215                                        final Message msg = mHandler
9216                                                .obtainMessage(CHECK_PENDING_VERIFICATION);
9217                                        msg.arg1 = verificationId;
9218                                        mHandler.sendMessageDelayed(msg, getVerificationTimeout());
9219                                    }
9220                                }, null, 0, null, null);
9221
9222                        /*
9223                         * We don't want the copy to proceed until verification
9224                         * succeeds, so null out this field.
9225                         */
9226                        mArgs = null;
9227                    }
9228                } else {
9229                    /*
9230                     * No package verification is enabled, so immediately start
9231                     * the remote call to initiate copy using temporary file.
9232                     */
9233                    ret = args.copyApk(mContainerService, true);
9234                }
9235            }
9236
9237            mRet = ret;
9238        }
9239
9240        @Override
9241        void handleReturnCode() {
9242            // If mArgs is null, then MCS couldn't be reached. When it
9243            // reconnects, it will try again to install. At that point, this
9244            // will succeed.
9245            if (mArgs != null) {
9246                processPendingInstall(mArgs, mRet);
9247            }
9248        }
9249
9250        @Override
9251        void handleServiceError() {
9252            mArgs = createInstallArgs(this);
9253            mRet = PackageManager.INSTALL_FAILED_INTERNAL_ERROR;
9254        }
9255
9256        public boolean isForwardLocked() {
9257            return (installFlags & PackageManager.INSTALL_FORWARD_LOCK) != 0;
9258        }
9259    }
9260
9261    /**
9262     * Used during creation of InstallArgs
9263     *
9264     * @param installFlags package installation flags
9265     * @return true if should be installed on external storage
9266     */
9267    private static boolean installOnSd(int installFlags) {
9268        if ((installFlags & PackageManager.INSTALL_INTERNAL) != 0) {
9269            return false;
9270        }
9271        if ((installFlags & PackageManager.INSTALL_EXTERNAL) != 0) {
9272            return true;
9273        }
9274        return false;
9275    }
9276
9277    /**
9278     * Used during creation of InstallArgs
9279     *
9280     * @param installFlags package installation flags
9281     * @return true if should be installed as forward locked
9282     */
9283    private static boolean installForwardLocked(int installFlags) {
9284        return (installFlags & PackageManager.INSTALL_FORWARD_LOCK) != 0;
9285    }
9286
9287    private InstallArgs createInstallArgs(InstallParams params) {
9288        if (installOnSd(params.installFlags) || params.isForwardLocked()) {
9289            return new AsecInstallArgs(params);
9290        } else {
9291            return new FileInstallArgs(params);
9292        }
9293    }
9294
9295    /**
9296     * Create args that describe an existing installed package. Typically used
9297     * when cleaning up old installs, or used as a move source.
9298     */
9299    private InstallArgs createInstallArgsForExisting(int installFlags, String codePath,
9300            String resourcePath, String nativeLibraryRoot, String[] instructionSets) {
9301        final boolean isInAsec;
9302        if (installOnSd(installFlags)) {
9303            /* Apps on SD card are always in ASEC containers. */
9304            isInAsec = true;
9305        } else if (installForwardLocked(installFlags)
9306                && !codePath.startsWith(mDrmAppPrivateInstallDir.getAbsolutePath())) {
9307            /*
9308             * Forward-locked apps are only in ASEC containers if they're the
9309             * new style
9310             */
9311            isInAsec = true;
9312        } else {
9313            isInAsec = false;
9314        }
9315
9316        if (isInAsec) {
9317            return new AsecInstallArgs(codePath, instructionSets,
9318                    installOnSd(installFlags), installForwardLocked(installFlags));
9319        } else {
9320            return new FileInstallArgs(codePath, resourcePath, nativeLibraryRoot,
9321                    instructionSets);
9322        }
9323    }
9324
9325    static abstract class InstallArgs {
9326        /** @see InstallParams#origin */
9327        final OriginInfo origin;
9328
9329        final IPackageInstallObserver2 observer;
9330        // Always refers to PackageManager flags only
9331        final int installFlags;
9332        final String installerPackageName;
9333        final ManifestDigest manifestDigest;
9334        final UserHandle user;
9335        final String abiOverride;
9336
9337        // The list of instruction sets supported by this app. This is currently
9338        // only used during the rmdex() phase to clean up resources. We can get rid of this
9339        // if we move dex files under the common app path.
9340        /* nullable */ String[] instructionSets;
9341
9342        InstallArgs(OriginInfo origin, IPackageInstallObserver2 observer, int installFlags,
9343                String installerPackageName, ManifestDigest manifestDigest, UserHandle user,
9344                String[] instructionSets, String abiOverride) {
9345            this.origin = origin;
9346            this.installFlags = installFlags;
9347            this.observer = observer;
9348            this.installerPackageName = installerPackageName;
9349            this.manifestDigest = manifestDigest;
9350            this.user = user;
9351            this.instructionSets = instructionSets;
9352            this.abiOverride = abiOverride;
9353        }
9354
9355        abstract int copyApk(IMediaContainerService imcs, boolean temp) throws RemoteException;
9356        abstract int doPreInstall(int status);
9357
9358        /**
9359         * Rename package into final resting place. All paths on the given
9360         * scanned package should be updated to reflect the rename.
9361         */
9362        abstract boolean doRename(int status, PackageParser.Package pkg, String oldCodePath);
9363        abstract int doPostInstall(int status, int uid);
9364
9365        /** @see PackageSettingBase#codePathString */
9366        abstract String getCodePath();
9367        /** @see PackageSettingBase#resourcePathString */
9368        abstract String getResourcePath();
9369        abstract String getLegacyNativeLibraryPath();
9370
9371        // Need installer lock especially for dex file removal.
9372        abstract void cleanUpResourcesLI();
9373        abstract boolean doPostDeleteLI(boolean delete);
9374        abstract boolean checkFreeStorage(IMediaContainerService imcs) throws RemoteException;
9375
9376        /**
9377         * Called before the source arguments are copied. This is used mostly
9378         * for MoveParams when it needs to read the source file to put it in the
9379         * destination.
9380         */
9381        int doPreCopy() {
9382            return PackageManager.INSTALL_SUCCEEDED;
9383        }
9384
9385        /**
9386         * Called after the source arguments are copied. This is used mostly for
9387         * MoveParams when it needs to read the source file to put it in the
9388         * destination.
9389         *
9390         * @return
9391         */
9392        int doPostCopy(int uid) {
9393            return PackageManager.INSTALL_SUCCEEDED;
9394        }
9395
9396        protected boolean isFwdLocked() {
9397            return (installFlags & PackageManager.INSTALL_FORWARD_LOCK) != 0;
9398        }
9399
9400        protected boolean isExternal() {
9401            return (installFlags & PackageManager.INSTALL_EXTERNAL) != 0;
9402        }
9403
9404        UserHandle getUser() {
9405            return user;
9406        }
9407    }
9408
9409    /**
9410     * Logic to handle installation of non-ASEC applications, including copying
9411     * and renaming logic.
9412     */
9413    class FileInstallArgs extends InstallArgs {
9414        private File codeFile;
9415        private File resourceFile;
9416        private File legacyNativeLibraryPath;
9417
9418        // Example topology:
9419        // /data/app/com.example/base.apk
9420        // /data/app/com.example/split_foo.apk
9421        // /data/app/com.example/lib/arm/libfoo.so
9422        // /data/app/com.example/lib/arm64/libfoo.so
9423        // /data/app/com.example/dalvik/arm/base.apk@classes.dex
9424
9425        /** New install */
9426        FileInstallArgs(InstallParams params) {
9427            super(params.origin, params.observer, params.installFlags,
9428                    params.installerPackageName, params.getManifestDigest(), params.getUser(),
9429                    null /* instruction sets */, params.packageAbiOverride);
9430            if (isFwdLocked()) {
9431                throw new IllegalArgumentException("Forward locking only supported in ASEC");
9432            }
9433        }
9434
9435        /** Existing install */
9436        FileInstallArgs(String codePath, String resourcePath, String legacyNativeLibraryPath,
9437                String[] instructionSets) {
9438            super(OriginInfo.fromNothing(), null, 0, null, null, null, instructionSets, null);
9439            this.codeFile = (codePath != null) ? new File(codePath) : null;
9440            this.resourceFile = (resourcePath != null) ? new File(resourcePath) : null;
9441            this.legacyNativeLibraryPath = (legacyNativeLibraryPath != null) ?
9442                    new File(legacyNativeLibraryPath) : null;
9443        }
9444
9445        boolean checkFreeStorage(IMediaContainerService imcs) throws RemoteException {
9446            final long sizeBytes = imcs.calculateInstalledSize(origin.file.getAbsolutePath(),
9447                    isFwdLocked(), abiOverride);
9448
9449            final StorageManager storage = StorageManager.from(mContext);
9450            return (sizeBytes <= storage.getStorageBytesUntilLow(Environment.getDataDirectory()));
9451        }
9452
9453        int copyApk(IMediaContainerService imcs, boolean temp) throws RemoteException {
9454            if (origin.staged) {
9455                Slog.d(TAG, origin.file + " already staged; skipping copy");
9456                codeFile = origin.file;
9457                resourceFile = origin.file;
9458                return PackageManager.INSTALL_SUCCEEDED;
9459            }
9460
9461            try {
9462                final File tempDir = mInstallerService.allocateInternalStageDirLegacy();
9463                codeFile = tempDir;
9464                resourceFile = tempDir;
9465            } catch (IOException e) {
9466                Slog.w(TAG, "Failed to create copy file: " + e);
9467                return PackageManager.INSTALL_FAILED_INSUFFICIENT_STORAGE;
9468            }
9469
9470            final IParcelFileDescriptorFactory target = new IParcelFileDescriptorFactory.Stub() {
9471                @Override
9472                public ParcelFileDescriptor open(String name, int mode) throws RemoteException {
9473                    if (!FileUtils.isValidExtFilename(name)) {
9474                        throw new IllegalArgumentException("Invalid filename: " + name);
9475                    }
9476                    try {
9477                        final File file = new File(codeFile, name);
9478                        final FileDescriptor fd = Os.open(file.getAbsolutePath(),
9479                                O_RDWR | O_CREAT, 0644);
9480                        Os.chmod(file.getAbsolutePath(), 0644);
9481                        return new ParcelFileDescriptor(fd);
9482                    } catch (ErrnoException e) {
9483                        throw new RemoteException("Failed to open: " + e.getMessage());
9484                    }
9485                }
9486            };
9487
9488            int ret = PackageManager.INSTALL_SUCCEEDED;
9489            ret = imcs.copyPackage(origin.file.getAbsolutePath(), target);
9490            if (ret != PackageManager.INSTALL_SUCCEEDED) {
9491                Slog.e(TAG, "Failed to copy package");
9492                return ret;
9493            }
9494
9495            final File libraryRoot = new File(codeFile, LIB_DIR_NAME);
9496            NativeLibraryHelper.Handle handle = null;
9497            try {
9498                handle = NativeLibraryHelper.Handle.create(codeFile);
9499                ret = NativeLibraryHelper.copyNativeBinariesWithOverride(handle, libraryRoot,
9500                        abiOverride);
9501            } catch (IOException e) {
9502                Slog.e(TAG, "Copying native libraries failed", e);
9503                ret = PackageManager.INSTALL_FAILED_INTERNAL_ERROR;
9504            } finally {
9505                IoUtils.closeQuietly(handle);
9506            }
9507
9508            return ret;
9509        }
9510
9511        int doPreInstall(int status) {
9512            if (status != PackageManager.INSTALL_SUCCEEDED) {
9513                cleanUp();
9514            }
9515            return status;
9516        }
9517
9518        boolean doRename(int status, PackageParser.Package pkg, String oldCodePath) {
9519            if (status != PackageManager.INSTALL_SUCCEEDED) {
9520                cleanUp();
9521                return false;
9522            } else {
9523                final File beforeCodeFile = codeFile;
9524                final File afterCodeFile = getNextCodePath(pkg.packageName);
9525
9526                Slog.d(TAG, "Renaming " + beforeCodeFile + " to " + afterCodeFile);
9527                try {
9528                    Os.rename(beforeCodeFile.getAbsolutePath(), afterCodeFile.getAbsolutePath());
9529                } catch (ErrnoException e) {
9530                    Slog.d(TAG, "Failed to rename", e);
9531                    return false;
9532                }
9533
9534                if (!SELinux.restoreconRecursive(afterCodeFile)) {
9535                    Slog.d(TAG, "Failed to restorecon");
9536                    return false;
9537                }
9538
9539                // Reflect the rename internally
9540                codeFile = afterCodeFile;
9541                resourceFile = afterCodeFile;
9542
9543                // Reflect the rename in scanned details
9544                pkg.codePath = afterCodeFile.getAbsolutePath();
9545                pkg.baseCodePath = FileUtils.rewriteAfterRename(beforeCodeFile, afterCodeFile,
9546                        pkg.baseCodePath);
9547                pkg.splitCodePaths = FileUtils.rewriteAfterRename(beforeCodeFile, afterCodeFile,
9548                        pkg.splitCodePaths);
9549
9550                // Reflect the rename in app info
9551                pkg.applicationInfo.setCodePath(pkg.codePath);
9552                pkg.applicationInfo.setBaseCodePath(pkg.baseCodePath);
9553                pkg.applicationInfo.setSplitCodePaths(pkg.splitCodePaths);
9554                pkg.applicationInfo.setResourcePath(pkg.codePath);
9555                pkg.applicationInfo.setBaseResourcePath(pkg.baseCodePath);
9556                pkg.applicationInfo.setSplitResourcePaths(pkg.splitCodePaths);
9557
9558                return true;
9559            }
9560        }
9561
9562        int doPostInstall(int status, int uid) {
9563            if (status != PackageManager.INSTALL_SUCCEEDED) {
9564                cleanUp();
9565            }
9566            return status;
9567        }
9568
9569        @Override
9570        String getCodePath() {
9571            return (codeFile != null) ? codeFile.getAbsolutePath() : null;
9572        }
9573
9574        @Override
9575        String getResourcePath() {
9576            return (resourceFile != null) ? resourceFile.getAbsolutePath() : null;
9577        }
9578
9579        @Override
9580        String getLegacyNativeLibraryPath() {
9581            return (legacyNativeLibraryPath != null) ? legacyNativeLibraryPath.getAbsolutePath() : null;
9582        }
9583
9584        private boolean cleanUp() {
9585            if (codeFile == null || !codeFile.exists()) {
9586                return false;
9587            }
9588
9589            if (codeFile.isDirectory()) {
9590                FileUtils.deleteContents(codeFile);
9591            }
9592            codeFile.delete();
9593
9594            if (resourceFile != null && !FileUtils.contains(codeFile, resourceFile)) {
9595                resourceFile.delete();
9596            }
9597
9598            if (legacyNativeLibraryPath != null && !FileUtils.contains(codeFile, legacyNativeLibraryPath)) {
9599                if (!FileUtils.deleteContents(legacyNativeLibraryPath)) {
9600                    Slog.w(TAG, "Couldn't delete native library directory " + legacyNativeLibraryPath);
9601                }
9602                legacyNativeLibraryPath.delete();
9603            }
9604
9605            return true;
9606        }
9607
9608        void cleanUpResourcesLI() {
9609            // Try enumerating all code paths before deleting
9610            List<String> allCodePaths = Collections.EMPTY_LIST;
9611            if (codeFile != null && codeFile.exists()) {
9612                try {
9613                    final PackageLite pkg = PackageParser.parsePackageLite(codeFile, 0);
9614                    allCodePaths = pkg.getAllCodePaths();
9615                } catch (PackageParserException e) {
9616                    // Ignored; we tried our best
9617                }
9618            }
9619
9620            cleanUp();
9621
9622            if (!allCodePaths.isEmpty()) {
9623                if (instructionSets == null) {
9624                    throw new IllegalStateException("instructionSet == null");
9625                }
9626                String[] dexCodeInstructionSets = getDexCodeInstructionSets(instructionSets);
9627                for (String codePath : allCodePaths) {
9628                    for (String dexCodeInstructionSet : dexCodeInstructionSets) {
9629                        int retCode = mInstaller.rmdex(codePath, dexCodeInstructionSet);
9630                        if (retCode < 0) {
9631                            Slog.w(TAG, "Couldn't remove dex file for package: "
9632                                    + " at location " + codePath + ", retcode=" + retCode);
9633                            // we don't consider this to be a failure of the core package deletion
9634                        }
9635                    }
9636                }
9637            }
9638        }
9639
9640        boolean doPostDeleteLI(boolean delete) {
9641            // XXX err, shouldn't we respect the delete flag?
9642            cleanUpResourcesLI();
9643            return true;
9644        }
9645    }
9646
9647    private boolean isAsecExternal(String cid) {
9648        final String asecPath = PackageHelper.getSdFilesystem(cid);
9649        return !asecPath.startsWith(mAsecInternalPath);
9650    }
9651
9652    private static void maybeThrowExceptionForMultiArchCopy(String message, int copyRet) throws
9653            PackageManagerException {
9654        if (copyRet < 0) {
9655            if (copyRet != PackageManager.NO_NATIVE_LIBRARIES &&
9656                    copyRet != PackageManager.INSTALL_FAILED_NO_MATCHING_ABIS) {
9657                throw new PackageManagerException(copyRet, message);
9658            }
9659        }
9660    }
9661
9662    /**
9663     * Extract the MountService "container ID" from the full code path of an
9664     * .apk.
9665     */
9666    static String cidFromCodePath(String fullCodePath) {
9667        int eidx = fullCodePath.lastIndexOf("/");
9668        String subStr1 = fullCodePath.substring(0, eidx);
9669        int sidx = subStr1.lastIndexOf("/");
9670        return subStr1.substring(sidx+1, eidx);
9671    }
9672
9673    /**
9674     * Logic to handle installation of ASEC applications, including copying and
9675     * renaming logic.
9676     */
9677    class AsecInstallArgs extends InstallArgs {
9678        static final String RES_FILE_NAME = "pkg.apk";
9679        static final String PUBLIC_RES_FILE_NAME = "res.zip";
9680
9681        String cid;
9682        String packagePath;
9683        String resourcePath;
9684        String legacyNativeLibraryDir;
9685
9686        /** New install */
9687        AsecInstallArgs(InstallParams params) {
9688            super(params.origin, params.observer, params.installFlags,
9689                    params.installerPackageName, params.getManifestDigest(),
9690                    params.getUser(), null /* instruction sets */,
9691                    params.packageAbiOverride);
9692        }
9693
9694        /** Existing install */
9695        AsecInstallArgs(String fullCodePath, String[] instructionSets,
9696                        boolean isExternal, boolean isForwardLocked) {
9697            super(OriginInfo.fromNothing(), null, (isExternal ? INSTALL_EXTERNAL : 0)
9698                    | (isForwardLocked ? INSTALL_FORWARD_LOCK : 0), null, null, null,
9699                    instructionSets, null);
9700            // Hackily pretend we're still looking at a full code path
9701            if (!fullCodePath.endsWith(RES_FILE_NAME)) {
9702                fullCodePath = new File(fullCodePath, RES_FILE_NAME).getAbsolutePath();
9703            }
9704
9705            // Extract cid from fullCodePath
9706            int eidx = fullCodePath.lastIndexOf("/");
9707            String subStr1 = fullCodePath.substring(0, eidx);
9708            int sidx = subStr1.lastIndexOf("/");
9709            cid = subStr1.substring(sidx+1, eidx);
9710            setMountPath(subStr1);
9711        }
9712
9713        AsecInstallArgs(String cid, String[] instructionSets, boolean isForwardLocked) {
9714            super(OriginInfo.fromNothing(), null, (isAsecExternal(cid) ? INSTALL_EXTERNAL : 0)
9715                    | (isForwardLocked ? INSTALL_FORWARD_LOCK : 0), null, null, null,
9716                    instructionSets, null);
9717            this.cid = cid;
9718            setMountPath(PackageHelper.getSdDir(cid));
9719        }
9720
9721        void createCopyFile() {
9722            cid = mInstallerService.allocateExternalStageCidLegacy();
9723        }
9724
9725        boolean checkFreeStorage(IMediaContainerService imcs) throws RemoteException {
9726            final long sizeBytes = imcs.calculateInstalledSize(packagePath, isFwdLocked(),
9727                    abiOverride);
9728
9729            final File target;
9730            if (isExternal()) {
9731                target = new UserEnvironment(UserHandle.USER_OWNER).getExternalStorageDirectory();
9732            } else {
9733                target = Environment.getDataDirectory();
9734            }
9735
9736            final StorageManager storage = StorageManager.from(mContext);
9737            return (sizeBytes <= storage.getStorageBytesUntilLow(target));
9738        }
9739
9740        int copyApk(IMediaContainerService imcs, boolean temp) throws RemoteException {
9741            if (origin.staged) {
9742                Slog.d(TAG, origin.cid + " already staged; skipping copy");
9743                cid = origin.cid;
9744                setMountPath(PackageHelper.getSdDir(cid));
9745                return PackageManager.INSTALL_SUCCEEDED;
9746            }
9747
9748            if (temp) {
9749                createCopyFile();
9750            } else {
9751                /*
9752                 * Pre-emptively destroy the container since it's destroyed if
9753                 * copying fails due to it existing anyway.
9754                 */
9755                PackageHelper.destroySdDir(cid);
9756            }
9757
9758            final String newMountPath = imcs.copyPackageToContainer(
9759                    origin.file.getAbsolutePath(), cid, getEncryptKey(), isExternal(),
9760                    isFwdLocked(), deriveAbiOverride(abiOverride, null /* settings */));
9761
9762            if (newMountPath != null) {
9763                setMountPath(newMountPath);
9764                return PackageManager.INSTALL_SUCCEEDED;
9765            } else {
9766                return PackageManager.INSTALL_FAILED_CONTAINER_ERROR;
9767            }
9768        }
9769
9770        @Override
9771        String getCodePath() {
9772            return packagePath;
9773        }
9774
9775        @Override
9776        String getResourcePath() {
9777            return resourcePath;
9778        }
9779
9780        @Override
9781        String getLegacyNativeLibraryPath() {
9782            return legacyNativeLibraryDir;
9783        }
9784
9785        int doPreInstall(int status) {
9786            if (status != PackageManager.INSTALL_SUCCEEDED) {
9787                // Destroy container
9788                PackageHelper.destroySdDir(cid);
9789            } else {
9790                boolean mounted = PackageHelper.isContainerMounted(cid);
9791                if (!mounted) {
9792                    String newMountPath = PackageHelper.mountSdDir(cid, getEncryptKey(),
9793                            Process.SYSTEM_UID);
9794                    if (newMountPath != null) {
9795                        setMountPath(newMountPath);
9796                    } else {
9797                        return PackageManager.INSTALL_FAILED_CONTAINER_ERROR;
9798                    }
9799                }
9800            }
9801            return status;
9802        }
9803
9804        boolean doRename(int status, PackageParser.Package pkg, String oldCodePath) {
9805            String newCacheId = getNextCodePath(oldCodePath, pkg.packageName, "/" + RES_FILE_NAME);
9806            String newMountPath = null;
9807            if (PackageHelper.isContainerMounted(cid)) {
9808                // Unmount the container
9809                if (!PackageHelper.unMountSdDir(cid)) {
9810                    Slog.i(TAG, "Failed to unmount " + cid + " before renaming");
9811                    return false;
9812                }
9813            }
9814            if (!PackageHelper.renameSdDir(cid, newCacheId)) {
9815                Slog.e(TAG, "Failed to rename " + cid + " to " + newCacheId +
9816                        " which might be stale. Will try to clean up.");
9817                // Clean up the stale container and proceed to recreate.
9818                if (!PackageHelper.destroySdDir(newCacheId)) {
9819                    Slog.e(TAG, "Very strange. Cannot clean up stale container " + newCacheId);
9820                    return false;
9821                }
9822                // Successfully cleaned up stale container. Try to rename again.
9823                if (!PackageHelper.renameSdDir(cid, newCacheId)) {
9824                    Slog.e(TAG, "Failed to rename " + cid + " to " + newCacheId
9825                            + " inspite of cleaning it up.");
9826                    return false;
9827                }
9828            }
9829            if (!PackageHelper.isContainerMounted(newCacheId)) {
9830                Slog.w(TAG, "Mounting container " + newCacheId);
9831                newMountPath = PackageHelper.mountSdDir(newCacheId,
9832                        getEncryptKey(), Process.SYSTEM_UID);
9833            } else {
9834                newMountPath = PackageHelper.getSdDir(newCacheId);
9835            }
9836            if (newMountPath == null) {
9837                Slog.w(TAG, "Failed to get cache path for  " + newCacheId);
9838                return false;
9839            }
9840            Log.i(TAG, "Succesfully renamed " + cid +
9841                    " to " + newCacheId +
9842                    " at new path: " + newMountPath);
9843            cid = newCacheId;
9844
9845            final File beforeCodeFile = new File(packagePath);
9846            setMountPath(newMountPath);
9847            final File afterCodeFile = new File(packagePath);
9848
9849            // Reflect the rename in scanned details
9850            pkg.codePath = afterCodeFile.getAbsolutePath();
9851            pkg.baseCodePath = FileUtils.rewriteAfterRename(beforeCodeFile, afterCodeFile,
9852                    pkg.baseCodePath);
9853            pkg.splitCodePaths = FileUtils.rewriteAfterRename(beforeCodeFile, afterCodeFile,
9854                    pkg.splitCodePaths);
9855
9856            // Reflect the rename in app info
9857            pkg.applicationInfo.setCodePath(pkg.codePath);
9858            pkg.applicationInfo.setBaseCodePath(pkg.baseCodePath);
9859            pkg.applicationInfo.setSplitCodePaths(pkg.splitCodePaths);
9860            pkg.applicationInfo.setResourcePath(pkg.codePath);
9861            pkg.applicationInfo.setBaseResourcePath(pkg.baseCodePath);
9862            pkg.applicationInfo.setSplitResourcePaths(pkg.splitCodePaths);
9863
9864            return true;
9865        }
9866
9867        private void setMountPath(String mountPath) {
9868            final File mountFile = new File(mountPath);
9869
9870            final File monolithicFile = new File(mountFile, RES_FILE_NAME);
9871            if (monolithicFile.exists()) {
9872                packagePath = monolithicFile.getAbsolutePath();
9873                if (isFwdLocked()) {
9874                    resourcePath = new File(mountFile, PUBLIC_RES_FILE_NAME).getAbsolutePath();
9875                } else {
9876                    resourcePath = packagePath;
9877                }
9878            } else {
9879                packagePath = mountFile.getAbsolutePath();
9880                resourcePath = packagePath;
9881            }
9882
9883            legacyNativeLibraryDir = new File(mountFile, LIB_DIR_NAME).getAbsolutePath();
9884        }
9885
9886        int doPostInstall(int status, int uid) {
9887            if (status != PackageManager.INSTALL_SUCCEEDED) {
9888                cleanUp();
9889            } else {
9890                final int groupOwner;
9891                final String protectedFile;
9892                if (isFwdLocked()) {
9893                    groupOwner = UserHandle.getSharedAppGid(uid);
9894                    protectedFile = RES_FILE_NAME;
9895                } else {
9896                    groupOwner = -1;
9897                    protectedFile = null;
9898                }
9899
9900                if (uid < Process.FIRST_APPLICATION_UID
9901                        || !PackageHelper.fixSdPermissions(cid, groupOwner, protectedFile)) {
9902                    Slog.e(TAG, "Failed to finalize " + cid);
9903                    PackageHelper.destroySdDir(cid);
9904                    return PackageManager.INSTALL_FAILED_CONTAINER_ERROR;
9905                }
9906
9907                boolean mounted = PackageHelper.isContainerMounted(cid);
9908                if (!mounted) {
9909                    PackageHelper.mountSdDir(cid, getEncryptKey(), Process.myUid());
9910                }
9911            }
9912            return status;
9913        }
9914
9915        private void cleanUp() {
9916            if (DEBUG_SD_INSTALL) Slog.i(TAG, "cleanUp");
9917
9918            // Destroy secure container
9919            PackageHelper.destroySdDir(cid);
9920        }
9921
9922        private List<String> getAllCodePaths() {
9923            final File codeFile = new File(getCodePath());
9924            if (codeFile != null && codeFile.exists()) {
9925                try {
9926                    final PackageLite pkg = PackageParser.parsePackageLite(codeFile, 0);
9927                    return pkg.getAllCodePaths();
9928                } catch (PackageParserException e) {
9929                    // Ignored; we tried our best
9930                }
9931            }
9932            return Collections.EMPTY_LIST;
9933        }
9934
9935        void cleanUpResourcesLI() {
9936            // Enumerate all code paths before deleting
9937            cleanUpResourcesLI(getAllCodePaths());
9938        }
9939
9940        private void cleanUpResourcesLI(List<String> allCodePaths) {
9941            cleanUp();
9942
9943            if (!allCodePaths.isEmpty()) {
9944                if (instructionSets == null) {
9945                    throw new IllegalStateException("instructionSet == null");
9946                }
9947                String[] dexCodeInstructionSets = getDexCodeInstructionSets(instructionSets);
9948                for (String codePath : allCodePaths) {
9949                    for (String dexCodeInstructionSet : dexCodeInstructionSets) {
9950                        int retCode = mInstaller.rmdex(codePath, dexCodeInstructionSet);
9951                        if (retCode < 0) {
9952                            Slog.w(TAG, "Couldn't remove dex file for package: "
9953                                    + " at location " + codePath + ", retcode=" + retCode);
9954                            // we don't consider this to be a failure of the core package deletion
9955                        }
9956                    }
9957                }
9958            }
9959        }
9960
9961        boolean matchContainer(String app) {
9962            if (cid.startsWith(app)) {
9963                return true;
9964            }
9965            return false;
9966        }
9967
9968        String getPackageName() {
9969            return getAsecPackageName(cid);
9970        }
9971
9972        boolean doPostDeleteLI(boolean delete) {
9973            if (DEBUG_SD_INSTALL) Slog.i(TAG, "doPostDeleteLI() del=" + delete);
9974            final List<String> allCodePaths = getAllCodePaths();
9975            boolean mounted = PackageHelper.isContainerMounted(cid);
9976            if (mounted) {
9977                // Unmount first
9978                if (PackageHelper.unMountSdDir(cid)) {
9979                    mounted = false;
9980                }
9981            }
9982            if (!mounted && delete) {
9983                cleanUpResourcesLI(allCodePaths);
9984            }
9985            return !mounted;
9986        }
9987
9988        @Override
9989        int doPreCopy() {
9990            if (isFwdLocked()) {
9991                if (!PackageHelper.fixSdPermissions(cid,
9992                        getPackageUid(DEFAULT_CONTAINER_PACKAGE, 0), RES_FILE_NAME)) {
9993                    return PackageManager.INSTALL_FAILED_CONTAINER_ERROR;
9994                }
9995            }
9996
9997            return PackageManager.INSTALL_SUCCEEDED;
9998        }
9999
10000        @Override
10001        int doPostCopy(int uid) {
10002            if (isFwdLocked()) {
10003                if (uid < Process.FIRST_APPLICATION_UID
10004                        || !PackageHelper.fixSdPermissions(cid, UserHandle.getSharedAppGid(uid),
10005                                RES_FILE_NAME)) {
10006                    Slog.e(TAG, "Failed to finalize " + cid);
10007                    PackageHelper.destroySdDir(cid);
10008                    return PackageManager.INSTALL_FAILED_CONTAINER_ERROR;
10009                }
10010            }
10011
10012            return PackageManager.INSTALL_SUCCEEDED;
10013        }
10014    }
10015
10016    static String getAsecPackageName(String packageCid) {
10017        int idx = packageCid.lastIndexOf("-");
10018        if (idx == -1) {
10019            return packageCid;
10020        }
10021        return packageCid.substring(0, idx);
10022    }
10023
10024    // Utility method used to create code paths based on package name and available index.
10025    private static String getNextCodePath(String oldCodePath, String prefix, String suffix) {
10026        String idxStr = "";
10027        int idx = 1;
10028        // Fall back to default value of idx=1 if prefix is not
10029        // part of oldCodePath
10030        if (oldCodePath != null) {
10031            String subStr = oldCodePath;
10032            // Drop the suffix right away
10033            if (suffix != null && subStr.endsWith(suffix)) {
10034                subStr = subStr.substring(0, subStr.length() - suffix.length());
10035            }
10036            // If oldCodePath already contains prefix find out the
10037            // ending index to either increment or decrement.
10038            int sidx = subStr.lastIndexOf(prefix);
10039            if (sidx != -1) {
10040                subStr = subStr.substring(sidx + prefix.length());
10041                if (subStr != null) {
10042                    if (subStr.startsWith(INSTALL_PACKAGE_SUFFIX)) {
10043                        subStr = subStr.substring(INSTALL_PACKAGE_SUFFIX.length());
10044                    }
10045                    try {
10046                        idx = Integer.parseInt(subStr);
10047                        if (idx <= 1) {
10048                            idx++;
10049                        } else {
10050                            idx--;
10051                        }
10052                    } catch(NumberFormatException e) {
10053                    }
10054                }
10055            }
10056        }
10057        idxStr = INSTALL_PACKAGE_SUFFIX + Integer.toString(idx);
10058        return prefix + idxStr;
10059    }
10060
10061    private File getNextCodePath(String packageName) {
10062        int suffix = 1;
10063        File result;
10064        do {
10065            result = new File(mAppInstallDir, packageName + "-" + suffix);
10066            suffix++;
10067        } while (result.exists());
10068        return result;
10069    }
10070
10071    // Utility method used to ignore ADD/REMOVE events
10072    // by directory observer.
10073    private static boolean ignoreCodePath(String fullPathStr) {
10074        String apkName = deriveCodePathName(fullPathStr);
10075        int idx = apkName.lastIndexOf(INSTALL_PACKAGE_SUFFIX);
10076        if (idx != -1 && ((idx+1) < apkName.length())) {
10077            // Make sure the package ends with a numeral
10078            String version = apkName.substring(idx+1);
10079            try {
10080                Integer.parseInt(version);
10081                return true;
10082            } catch (NumberFormatException e) {}
10083        }
10084        return false;
10085    }
10086
10087    // Utility method that returns the relative package path with respect
10088    // to the installation directory. Like say for /data/data/com.test-1.apk
10089    // string com.test-1 is returned.
10090    static String deriveCodePathName(String codePath) {
10091        if (codePath == null) {
10092            return null;
10093        }
10094        final File codeFile = new File(codePath);
10095        final String name = codeFile.getName();
10096        if (codeFile.isDirectory()) {
10097            return name;
10098        } else if (name.endsWith(".apk") || name.endsWith(".tmp")) {
10099            final int lastDot = name.lastIndexOf('.');
10100            return name.substring(0, lastDot);
10101        } else {
10102            Slog.w(TAG, "Odd, " + codePath + " doesn't look like an APK");
10103            return null;
10104        }
10105    }
10106
10107    class PackageInstalledInfo {
10108        String name;
10109        int uid;
10110        // The set of users that originally had this package installed.
10111        int[] origUsers;
10112        // The set of users that now have this package installed.
10113        int[] newUsers;
10114        PackageParser.Package pkg;
10115        int returnCode;
10116        String returnMsg;
10117        PackageRemovedInfo removedInfo;
10118
10119        public void setError(int code, String msg) {
10120            returnCode = code;
10121            returnMsg = msg;
10122            Slog.w(TAG, msg);
10123        }
10124
10125        public void setError(String msg, PackageParserException e) {
10126            returnCode = e.error;
10127            returnMsg = ExceptionUtils.getCompleteMessage(msg, e);
10128            Slog.w(TAG, msg, e);
10129        }
10130
10131        public void setError(String msg, PackageManagerException e) {
10132            returnCode = e.error;
10133            returnMsg = ExceptionUtils.getCompleteMessage(msg, e);
10134            Slog.w(TAG, msg, e);
10135        }
10136
10137        // In some error cases we want to convey more info back to the observer
10138        String origPackage;
10139        String origPermission;
10140    }
10141
10142    /*
10143     * Install a non-existing package.
10144     */
10145    private void installNewPackageLI(PackageParser.Package pkg,
10146            int parseFlags, int scanFlags, UserHandle user,
10147            String installerPackageName, PackageInstalledInfo res) {
10148        // Remember this for later, in case we need to rollback this install
10149        String pkgName = pkg.packageName;
10150
10151        if (DEBUG_INSTALL) Slog.d(TAG, "installNewPackageLI: " + pkg);
10152        boolean dataDirExists = getDataPathForPackage(pkg.packageName, 0).exists();
10153        synchronized(mPackages) {
10154            if (mSettings.mRenamedPackages.containsKey(pkgName)) {
10155                // A package with the same name is already installed, though
10156                // it has been renamed to an older name.  The package we
10157                // are trying to install should be installed as an update to
10158                // the existing one, but that has not been requested, so bail.
10159                res.setError(INSTALL_FAILED_ALREADY_EXISTS, "Attempt to re-install " + pkgName
10160                        + " without first uninstalling package running as "
10161                        + mSettings.mRenamedPackages.get(pkgName));
10162                return;
10163            }
10164            if (mPackages.containsKey(pkgName)) {
10165                // Don't allow installation over an existing package with the same name.
10166                res.setError(INSTALL_FAILED_ALREADY_EXISTS, "Attempt to re-install " + pkgName
10167                        + " without first uninstalling.");
10168                return;
10169            }
10170        }
10171
10172        try {
10173            PackageParser.Package newPackage = scanPackageLI(pkg, parseFlags, scanFlags,
10174                    System.currentTimeMillis(), user);
10175
10176            updateSettingsLI(newPackage, installerPackageName, null, null, res);
10177            // delete the partially installed application. the data directory will have to be
10178            // restored if it was already existing
10179            if (res.returnCode != PackageManager.INSTALL_SUCCEEDED) {
10180                // remove package from internal structures.  Note that we want deletePackageX to
10181                // delete the package data and cache directories that it created in
10182                // scanPackageLocked, unless those directories existed before we even tried to
10183                // install.
10184                deletePackageLI(pkgName, UserHandle.ALL, false, null, null,
10185                        dataDirExists ? PackageManager.DELETE_KEEP_DATA : 0,
10186                                res.removedInfo, true);
10187            }
10188
10189        } catch (PackageManagerException e) {
10190            res.setError("Package couldn't be installed in " + pkg.codePath, e);
10191        }
10192    }
10193
10194    private boolean checkUpgradeKeySetLP(PackageSetting oldPS, PackageParser.Package newPkg) {
10195        // Upgrade keysets are being used.  Determine if new package has a superset of the
10196        // required keys.
10197        long[] upgradeKeySets = oldPS.keySetData.getUpgradeKeySets();
10198        KeySetManagerService ksms = mSettings.mKeySetManagerService;
10199        for (int i = 0; i < upgradeKeySets.length; i++) {
10200            Set<PublicKey> upgradeSet = ksms.getPublicKeysFromKeySetLPr(upgradeKeySets[i]);
10201            if (newPkg.mSigningKeys.containsAll(upgradeSet)) {
10202                return true;
10203            }
10204        }
10205        return false;
10206    }
10207
10208    private void replacePackageLI(PackageParser.Package pkg,
10209            int parseFlags, int scanFlags, UserHandle user,
10210            String installerPackageName, PackageInstalledInfo res) {
10211        PackageParser.Package oldPackage;
10212        String pkgName = pkg.packageName;
10213        int[] allUsers;
10214        boolean[] perUserInstalled;
10215
10216        // First find the old package info and check signatures
10217        synchronized(mPackages) {
10218            oldPackage = mPackages.get(pkgName);
10219            if (DEBUG_INSTALL) Slog.d(TAG, "replacePackageLI: new=" + pkg + ", old=" + oldPackage);
10220            PackageSetting ps = mSettings.mPackages.get(pkgName);
10221            if (ps == null || !ps.keySetData.isUsingUpgradeKeySets() || ps.sharedUser != null) {
10222                // default to original signature matching
10223                if (compareSignatures(oldPackage.mSignatures, pkg.mSignatures)
10224                    != PackageManager.SIGNATURE_MATCH) {
10225                    res.setError(INSTALL_FAILED_UPDATE_INCOMPATIBLE,
10226                            "New package has a different signature: " + pkgName);
10227                    return;
10228                }
10229            } else {
10230                if(!checkUpgradeKeySetLP(ps, pkg)) {
10231                    res.setError(INSTALL_FAILED_UPDATE_INCOMPATIBLE,
10232                            "New package not signed by keys specified by upgrade-keysets: "
10233                            + pkgName);
10234                    return;
10235                }
10236            }
10237
10238            // In case of rollback, remember per-user/profile install state
10239            allUsers = sUserManager.getUserIds();
10240            perUserInstalled = new boolean[allUsers.length];
10241            for (int i = 0; i < allUsers.length; i++) {
10242                perUserInstalled[i] = ps != null ? ps.getInstalled(allUsers[i]) : false;
10243            }
10244        }
10245
10246        boolean sysPkg = (isSystemApp(oldPackage));
10247        if (sysPkg) {
10248            replaceSystemPackageLI(oldPackage, pkg, parseFlags, scanFlags,
10249                    user, allUsers, perUserInstalled, installerPackageName, res);
10250        } else {
10251            replaceNonSystemPackageLI(oldPackage, pkg, parseFlags, scanFlags,
10252                    user, allUsers, perUserInstalled, installerPackageName, res);
10253        }
10254    }
10255
10256    private void replaceNonSystemPackageLI(PackageParser.Package deletedPackage,
10257            PackageParser.Package pkg, int parseFlags, int scanFlags, UserHandle user,
10258            int[] allUsers, boolean[] perUserInstalled,
10259            String installerPackageName, PackageInstalledInfo res) {
10260        String pkgName = deletedPackage.packageName;
10261        boolean deletedPkg = true;
10262        boolean updatedSettings = false;
10263
10264        if (DEBUG_INSTALL) Slog.d(TAG, "replaceNonSystemPackageLI: new=" + pkg + ", old="
10265                + deletedPackage);
10266        long origUpdateTime;
10267        if (pkg.mExtras != null) {
10268            origUpdateTime = ((PackageSetting)pkg.mExtras).lastUpdateTime;
10269        } else {
10270            origUpdateTime = 0;
10271        }
10272
10273        // First delete the existing package while retaining the data directory
10274        if (!deletePackageLI(pkgName, null, true, null, null, PackageManager.DELETE_KEEP_DATA,
10275                res.removedInfo, true)) {
10276            // If the existing package wasn't successfully deleted
10277            res.setError(INSTALL_FAILED_REPLACE_COULDNT_DELETE, "replaceNonSystemPackageLI");
10278            deletedPkg = false;
10279        } else {
10280            // Successfully deleted the old package; proceed with replace.
10281
10282            // If deleted package lived in a container, give users a chance to
10283            // relinquish resources before killing.
10284            if (isForwardLocked(deletedPackage) || isExternal(deletedPackage)) {
10285                if (DEBUG_INSTALL) {
10286                    Slog.i(TAG, "upgrading pkg " + deletedPackage + " is ASEC-hosted -> UNAVAILABLE");
10287                }
10288                final int[] uidArray = new int[] { deletedPackage.applicationInfo.uid };
10289                final ArrayList<String> pkgList = new ArrayList<String>(1);
10290                pkgList.add(deletedPackage.applicationInfo.packageName);
10291                sendResourcesChangedBroadcast(false, true, pkgList, uidArray, null);
10292            }
10293
10294            deleteCodeCacheDirsLI(pkgName);
10295            try {
10296                final PackageParser.Package newPackage = scanPackageLI(pkg, parseFlags,
10297                        scanFlags | SCAN_UPDATE_TIME, System.currentTimeMillis(), user);
10298                updateSettingsLI(newPackage, installerPackageName, allUsers, perUserInstalled, res);
10299                updatedSettings = true;
10300            } catch (PackageManagerException e) {
10301                res.setError("Package couldn't be installed in " + pkg.codePath, e);
10302            }
10303        }
10304
10305        if (res.returnCode != PackageManager.INSTALL_SUCCEEDED) {
10306            // remove package from internal structures.  Note that we want deletePackageX to
10307            // delete the package data and cache directories that it created in
10308            // scanPackageLocked, unless those directories existed before we even tried to
10309            // install.
10310            if(updatedSettings) {
10311                if (DEBUG_INSTALL) Slog.d(TAG, "Install failed, rolling pack: " + pkgName);
10312                deletePackageLI(
10313                        pkgName, null, true, allUsers, perUserInstalled,
10314                        PackageManager.DELETE_KEEP_DATA,
10315                                res.removedInfo, true);
10316            }
10317            // Since we failed to install the new package we need to restore the old
10318            // package that we deleted.
10319            if (deletedPkg) {
10320                if (DEBUG_INSTALL) Slog.d(TAG, "Install failed, reinstalling: " + deletedPackage);
10321                File restoreFile = new File(deletedPackage.codePath);
10322                // Parse old package
10323                boolean oldOnSd = isExternal(deletedPackage);
10324                int oldParseFlags  = mDefParseFlags | PackageParser.PARSE_CHATTY |
10325                        (isForwardLocked(deletedPackage) ? PackageParser.PARSE_FORWARD_LOCK : 0) |
10326                        (oldOnSd ? PackageParser.PARSE_ON_SDCARD : 0);
10327                int oldScanFlags = SCAN_UPDATE_SIGNATURE | SCAN_UPDATE_TIME;
10328                try {
10329                    scanPackageLI(restoreFile, oldParseFlags, oldScanFlags, origUpdateTime, null);
10330                } catch (PackageManagerException e) {
10331                    Slog.e(TAG, "Failed to restore package : " + pkgName + " after failed upgrade: "
10332                            + e.getMessage());
10333                    return;
10334                }
10335                // Restore of old package succeeded. Update permissions.
10336                // writer
10337                synchronized (mPackages) {
10338                    updatePermissionsLPw(deletedPackage.packageName, deletedPackage,
10339                            UPDATE_PERMISSIONS_ALL);
10340                    // can downgrade to reader
10341                    mSettings.writeLPr();
10342                }
10343                Slog.i(TAG, "Successfully restored package : " + pkgName + " after failed upgrade");
10344            }
10345        }
10346    }
10347
10348    private void replaceSystemPackageLI(PackageParser.Package deletedPackage,
10349            PackageParser.Package pkg, int parseFlags, int scanFlags, UserHandle user,
10350            int[] allUsers, boolean[] perUserInstalled,
10351            String installerPackageName, PackageInstalledInfo res) {
10352        if (DEBUG_INSTALL) Slog.d(TAG, "replaceSystemPackageLI: new=" + pkg
10353                + ", old=" + deletedPackage);
10354        boolean disabledSystem = false;
10355        boolean updatedSettings = false;
10356        parseFlags |= PackageParser.PARSE_IS_SYSTEM;
10357        if ((deletedPackage.applicationInfo.flags&ApplicationInfo.FLAG_PRIVILEGED) != 0) {
10358            parseFlags |= PackageParser.PARSE_IS_PRIVILEGED;
10359        }
10360        String packageName = deletedPackage.packageName;
10361        if (packageName == null) {
10362            res.setError(INSTALL_FAILED_REPLACE_COULDNT_DELETE,
10363                    "Attempt to delete null packageName.");
10364            return;
10365        }
10366        PackageParser.Package oldPkg;
10367        PackageSetting oldPkgSetting;
10368        // reader
10369        synchronized (mPackages) {
10370            oldPkg = mPackages.get(packageName);
10371            oldPkgSetting = mSettings.mPackages.get(packageName);
10372            if((oldPkg == null) || (oldPkg.applicationInfo == null) ||
10373                    (oldPkgSetting == null)) {
10374                res.setError(INSTALL_FAILED_REPLACE_COULDNT_DELETE,
10375                        "Couldn't find package:" + packageName + " information");
10376                return;
10377            }
10378        }
10379
10380        killApplication(packageName, oldPkg.applicationInfo.uid, "replace sys pkg");
10381
10382        res.removedInfo.uid = oldPkg.applicationInfo.uid;
10383        res.removedInfo.removedPackage = packageName;
10384        // Remove existing system package
10385        removePackageLI(oldPkgSetting, true);
10386        // writer
10387        synchronized (mPackages) {
10388            disabledSystem = mSettings.disableSystemPackageLPw(packageName);
10389            if (!disabledSystem && deletedPackage != null) {
10390                // We didn't need to disable the .apk as a current system package,
10391                // which means we are replacing another update that is already
10392                // installed.  We need to make sure to delete the older one's .apk.
10393                res.removedInfo.args = createInstallArgsForExisting(0,
10394                        deletedPackage.applicationInfo.getCodePath(),
10395                        deletedPackage.applicationInfo.getResourcePath(),
10396                        deletedPackage.applicationInfo.nativeLibraryRootDir,
10397                        getAppDexInstructionSets(deletedPackage.applicationInfo));
10398            } else {
10399                res.removedInfo.args = null;
10400            }
10401        }
10402
10403        // Successfully disabled the old package. Now proceed with re-installation
10404        deleteCodeCacheDirsLI(packageName);
10405
10406        res.returnCode = PackageManager.INSTALL_SUCCEEDED;
10407        pkg.applicationInfo.flags |= ApplicationInfo.FLAG_UPDATED_SYSTEM_APP;
10408
10409        PackageParser.Package newPackage = null;
10410        try {
10411            newPackage = scanPackageLI(pkg, parseFlags, scanFlags, 0, user);
10412            if (newPackage.mExtras != null) {
10413                final PackageSetting newPkgSetting = (PackageSetting) newPackage.mExtras;
10414                newPkgSetting.firstInstallTime = oldPkgSetting.firstInstallTime;
10415                newPkgSetting.lastUpdateTime = System.currentTimeMillis();
10416
10417                // is the update attempting to change shared user? that isn't going to work...
10418                if (oldPkgSetting.sharedUser != newPkgSetting.sharedUser) {
10419                    res.setError(INSTALL_FAILED_SHARED_USER_INCOMPATIBLE,
10420                            "Forbidding shared user change from " + oldPkgSetting.sharedUser
10421                            + " to " + newPkgSetting.sharedUser);
10422                    updatedSettings = true;
10423                }
10424            }
10425
10426            if (res.returnCode == PackageManager.INSTALL_SUCCEEDED) {
10427                updateSettingsLI(newPackage, installerPackageName, allUsers, perUserInstalled, res);
10428                updatedSettings = true;
10429            }
10430
10431        } catch (PackageManagerException e) {
10432            res.setError("Package couldn't be installed in " + pkg.codePath, e);
10433        }
10434
10435        if (res.returnCode != PackageManager.INSTALL_SUCCEEDED) {
10436            // Re installation failed. Restore old information
10437            // Remove new pkg information
10438            if (newPackage != null) {
10439                removeInstalledPackageLI(newPackage, true);
10440            }
10441            // Add back the old system package
10442            try {
10443                scanPackageLI(oldPkg, parseFlags, SCAN_UPDATE_SIGNATURE, 0, user);
10444            } catch (PackageManagerException e) {
10445                Slog.e(TAG, "Failed to restore original package: " + e.getMessage());
10446            }
10447            // Restore the old system information in Settings
10448            synchronized (mPackages) {
10449                if (disabledSystem) {
10450                    mSettings.enableSystemPackageLPw(packageName);
10451                }
10452                if (updatedSettings) {
10453                    mSettings.setInstallerPackageName(packageName,
10454                            oldPkgSetting.installerPackageName);
10455                }
10456                mSettings.writeLPr();
10457            }
10458        }
10459    }
10460
10461    private void updateSettingsLI(PackageParser.Package newPackage, String installerPackageName,
10462            int[] allUsers, boolean[] perUserInstalled,
10463            PackageInstalledInfo res) {
10464        String pkgName = newPackage.packageName;
10465        synchronized (mPackages) {
10466            //write settings. the installStatus will be incomplete at this stage.
10467            //note that the new package setting would have already been
10468            //added to mPackages. It hasn't been persisted yet.
10469            mSettings.setInstallStatus(pkgName, PackageSettingBase.PKG_INSTALL_INCOMPLETE);
10470            mSettings.writeLPr();
10471        }
10472
10473        if (DEBUG_INSTALL) Slog.d(TAG, "New package installed in " + newPackage.codePath);
10474
10475        synchronized (mPackages) {
10476            updatePermissionsLPw(newPackage.packageName, newPackage,
10477                    UPDATE_PERMISSIONS_REPLACE_PKG | (newPackage.permissions.size() > 0
10478                            ? UPDATE_PERMISSIONS_ALL : 0));
10479            // For system-bundled packages, we assume that installing an upgraded version
10480            // of the package implies that the user actually wants to run that new code,
10481            // so we enable the package.
10482            if (isSystemApp(newPackage)) {
10483                // NB: implicit assumption that system package upgrades apply to all users
10484                if (DEBUG_INSTALL) {
10485                    Slog.d(TAG, "Implicitly enabling system package on upgrade: " + pkgName);
10486                }
10487                PackageSetting ps = mSettings.mPackages.get(pkgName);
10488                if (ps != null) {
10489                    if (res.origUsers != null) {
10490                        for (int userHandle : res.origUsers) {
10491                            ps.setEnabled(COMPONENT_ENABLED_STATE_DEFAULT,
10492                                    userHandle, installerPackageName);
10493                        }
10494                    }
10495                    // Also convey the prior install/uninstall state
10496                    if (allUsers != null && perUserInstalled != null) {
10497                        for (int i = 0; i < allUsers.length; i++) {
10498                            if (DEBUG_INSTALL) {
10499                                Slog.d(TAG, "    user " + allUsers[i]
10500                                        + " => " + perUserInstalled[i]);
10501                            }
10502                            ps.setInstalled(perUserInstalled[i], allUsers[i]);
10503                        }
10504                        // these install state changes will be persisted in the
10505                        // upcoming call to mSettings.writeLPr().
10506                    }
10507                }
10508            }
10509            res.name = pkgName;
10510            res.uid = newPackage.applicationInfo.uid;
10511            res.pkg = newPackage;
10512            mSettings.setInstallStatus(pkgName, PackageSettingBase.PKG_INSTALL_COMPLETE);
10513            mSettings.setInstallerPackageName(pkgName, installerPackageName);
10514            res.returnCode = PackageManager.INSTALL_SUCCEEDED;
10515            //to update install status
10516            mSettings.writeLPr();
10517        }
10518    }
10519
10520    private void installPackageLI(InstallArgs args, PackageInstalledInfo res) {
10521        final int installFlags = args.installFlags;
10522        String installerPackageName = args.installerPackageName;
10523        File tmpPackageFile = new File(args.getCodePath());
10524        boolean forwardLocked = ((installFlags & PackageManager.INSTALL_FORWARD_LOCK) != 0);
10525        boolean onSd = ((installFlags & PackageManager.INSTALL_EXTERNAL) != 0);
10526        boolean replace = false;
10527        final int scanFlags = SCAN_NEW_INSTALL | SCAN_FORCE_DEX | SCAN_UPDATE_SIGNATURE;
10528        // Result object to be returned
10529        res.returnCode = PackageManager.INSTALL_SUCCEEDED;
10530
10531        if (DEBUG_INSTALL) Slog.d(TAG, "installPackageLI: path=" + tmpPackageFile);
10532        // Retrieve PackageSettings and parse package
10533        final int parseFlags = mDefParseFlags | PackageParser.PARSE_CHATTY
10534                | (forwardLocked ? PackageParser.PARSE_FORWARD_LOCK : 0)
10535                | (onSd ? PackageParser.PARSE_ON_SDCARD : 0);
10536        PackageParser pp = new PackageParser();
10537        pp.setSeparateProcesses(mSeparateProcesses);
10538        pp.setDisplayMetrics(mMetrics);
10539
10540        final PackageParser.Package pkg;
10541        try {
10542            pkg = pp.parsePackage(tmpPackageFile, parseFlags);
10543        } catch (PackageParserException e) {
10544            res.setError("Failed parse during installPackageLI", e);
10545            return;
10546        }
10547
10548        // Mark that we have an install time CPU ABI override.
10549        pkg.cpuAbiOverride = args.abiOverride;
10550
10551        String pkgName = res.name = pkg.packageName;
10552        if ((pkg.applicationInfo.flags&ApplicationInfo.FLAG_TEST_ONLY) != 0) {
10553            if ((installFlags & PackageManager.INSTALL_ALLOW_TEST) == 0) {
10554                res.setError(INSTALL_FAILED_TEST_ONLY, "installPackageLI");
10555                return;
10556            }
10557        }
10558
10559        try {
10560            pp.collectCertificates(pkg, parseFlags);
10561            pp.collectManifestDigest(pkg);
10562        } catch (PackageParserException e) {
10563            res.setError("Failed collect during installPackageLI", e);
10564            return;
10565        }
10566
10567        /* If the installer passed in a manifest digest, compare it now. */
10568        if (args.manifestDigest != null) {
10569            if (DEBUG_INSTALL) {
10570                final String parsedManifest = pkg.manifestDigest == null ? "null"
10571                        : pkg.manifestDigest.toString();
10572                Slog.d(TAG, "Comparing manifests: " + args.manifestDigest.toString() + " vs. "
10573                        + parsedManifest);
10574            }
10575
10576            if (!args.manifestDigest.equals(pkg.manifestDigest)) {
10577                res.setError(INSTALL_FAILED_PACKAGE_CHANGED, "Manifest digest changed");
10578                return;
10579            }
10580        } else if (DEBUG_INSTALL) {
10581            final String parsedManifest = pkg.manifestDigest == null
10582                    ? "null" : pkg.manifestDigest.toString();
10583            Slog.d(TAG, "manifestDigest was not present, but parser got: " + parsedManifest);
10584        }
10585
10586        // Get rid of all references to package scan path via parser.
10587        pp = null;
10588        String oldCodePath = null;
10589        boolean systemApp = false;
10590        synchronized (mPackages) {
10591            // Check if installing already existing package
10592            if ((installFlags & PackageManager.INSTALL_REPLACE_EXISTING) != 0) {
10593                String oldName = mSettings.mRenamedPackages.get(pkgName);
10594                if (pkg.mOriginalPackages != null
10595                        && pkg.mOriginalPackages.contains(oldName)
10596                        && mPackages.containsKey(oldName)) {
10597                    // This package is derived from an original package,
10598                    // and this device has been updating from that original
10599                    // name.  We must continue using the original name, so
10600                    // rename the new package here.
10601                    pkg.setPackageName(oldName);
10602                    pkgName = pkg.packageName;
10603                    replace = true;
10604                    if (DEBUG_INSTALL) Slog.d(TAG, "Replacing existing renamed package: oldName="
10605                            + oldName + " pkgName=" + pkgName);
10606                } else if (mPackages.containsKey(pkgName)) {
10607                    // This package, under its official name, already exists
10608                    // on the device; we should replace it.
10609                    replace = true;
10610                    if (DEBUG_INSTALL) Slog.d(TAG, "Replace existing pacakge: " + pkgName);
10611                }
10612            }
10613
10614            PackageSetting ps = mSettings.mPackages.get(pkgName);
10615            if (ps != null) {
10616                if (DEBUG_INSTALL) Slog.d(TAG, "Existing package: " + ps);
10617
10618                // Quick sanity check that we're signed correctly if updating;
10619                // we'll check this again later when scanning, but we want to
10620                // bail early here before tripping over redefined permissions.
10621                if (!ps.keySetData.isUsingUpgradeKeySets() || ps.sharedUser != null) {
10622                    try {
10623                        verifySignaturesLP(ps, pkg);
10624                    } catch (PackageManagerException e) {
10625                        res.setError(e.error, e.getMessage());
10626                        return;
10627                    }
10628                } else {
10629                    if (!checkUpgradeKeySetLP(ps, pkg)) {
10630                        res.setError(INSTALL_FAILED_UPDATE_INCOMPATIBLE, "Package "
10631                                + pkg.packageName + " upgrade keys do not match the "
10632                                + "previously installed version");
10633                        return;
10634                    }
10635                }
10636
10637                oldCodePath = mSettings.mPackages.get(pkgName).codePathString;
10638                if (ps.pkg != null && ps.pkg.applicationInfo != null) {
10639                    systemApp = (ps.pkg.applicationInfo.flags &
10640                            ApplicationInfo.FLAG_SYSTEM) != 0;
10641                }
10642                res.origUsers = ps.queryInstalledUsers(sUserManager.getUserIds(), true);
10643            }
10644
10645            // Check whether the newly-scanned package wants to define an already-defined perm
10646            int N = pkg.permissions.size();
10647            for (int i = N-1; i >= 0; i--) {
10648                PackageParser.Permission perm = pkg.permissions.get(i);
10649                BasePermission bp = mSettings.mPermissions.get(perm.info.name);
10650                if (bp != null) {
10651                    // If the defining package is signed with our cert, it's okay.  This
10652                    // also includes the "updating the same package" case, of course.
10653                    // "updating same package" could also involve key-rotation.
10654                    final boolean sigsOk;
10655                    if (!bp.sourcePackage.equals(pkg.packageName)
10656                            || !(bp.packageSetting instanceof PackageSetting)
10657                            || !bp.packageSetting.keySetData.isUsingUpgradeKeySets()
10658                            || ((PackageSetting) bp.packageSetting).sharedUser != null) {
10659                        sigsOk = compareSignatures(bp.packageSetting.signatures.mSignatures,
10660                                pkg.mSignatures) == PackageManager.SIGNATURE_MATCH;
10661                    } else {
10662                        sigsOk = checkUpgradeKeySetLP((PackageSetting) bp.packageSetting, pkg);
10663                    }
10664                    if (!sigsOk) {
10665                        // If the owning package is the system itself, we log but allow
10666                        // install to proceed; we fail the install on all other permission
10667                        // redefinitions.
10668                        if (!bp.sourcePackage.equals("android")) {
10669                            res.setError(INSTALL_FAILED_DUPLICATE_PERMISSION, "Package "
10670                                    + pkg.packageName + " attempting to redeclare permission "
10671                                    + perm.info.name + " already owned by " + bp.sourcePackage);
10672                            res.origPermission = perm.info.name;
10673                            res.origPackage = bp.sourcePackage;
10674                            return;
10675                        } else {
10676                            Slog.w(TAG, "Package " + pkg.packageName
10677                                    + " attempting to redeclare system permission "
10678                                    + perm.info.name + "; ignoring new declaration");
10679                            pkg.permissions.remove(i);
10680                        }
10681                    }
10682                }
10683            }
10684
10685        }
10686
10687        if (systemApp && onSd) {
10688            // Disable updates to system apps on sdcard
10689            res.setError(INSTALL_FAILED_INVALID_INSTALL_LOCATION,
10690                    "Cannot install updates to system apps on sdcard");
10691            return;
10692        }
10693
10694        if (!args.doRename(res.returnCode, pkg, oldCodePath)) {
10695            res.setError(INSTALL_FAILED_INSUFFICIENT_STORAGE, "Failed rename");
10696            return;
10697        }
10698
10699        if (replace) {
10700            replacePackageLI(pkg, parseFlags, scanFlags | SCAN_REPLACING, args.user,
10701                    installerPackageName, res);
10702        } else {
10703            installNewPackageLI(pkg, parseFlags, scanFlags | SCAN_DELETE_DATA_ON_FAILURES,
10704                    args.user, installerPackageName, res);
10705        }
10706        synchronized (mPackages) {
10707            final PackageSetting ps = mSettings.mPackages.get(pkgName);
10708            if (ps != null) {
10709                res.newUsers = ps.queryInstalledUsers(sUserManager.getUserIds(), true);
10710            }
10711        }
10712    }
10713
10714    private static boolean isForwardLocked(PackageParser.Package pkg) {
10715        return (pkg.applicationInfo.flags & ApplicationInfo.FLAG_FORWARD_LOCK) != 0;
10716    }
10717
10718    private static boolean isForwardLocked(ApplicationInfo info) {
10719        return (info.flags & ApplicationInfo.FLAG_FORWARD_LOCK) != 0;
10720    }
10721
10722    private boolean isForwardLocked(PackageSetting ps) {
10723        return (ps.pkgFlags & ApplicationInfo.FLAG_FORWARD_LOCK) != 0;
10724    }
10725
10726    private static boolean isMultiArch(PackageSetting ps) {
10727        return (ps.pkgFlags & ApplicationInfo.FLAG_MULTIARCH) != 0;
10728    }
10729
10730    private static boolean isMultiArch(ApplicationInfo info) {
10731        return (info.flags & ApplicationInfo.FLAG_MULTIARCH) != 0;
10732    }
10733
10734    private static boolean isExternal(PackageParser.Package pkg) {
10735        return (pkg.applicationInfo.flags & ApplicationInfo.FLAG_EXTERNAL_STORAGE) != 0;
10736    }
10737
10738    private static boolean isExternal(PackageSetting ps) {
10739        return (ps.pkgFlags & ApplicationInfo.FLAG_EXTERNAL_STORAGE) != 0;
10740    }
10741
10742    private static boolean isExternal(ApplicationInfo info) {
10743        return (info.flags & ApplicationInfo.FLAG_EXTERNAL_STORAGE) != 0;
10744    }
10745
10746    private static boolean isSystemApp(PackageParser.Package pkg) {
10747        return (pkg.applicationInfo.flags & ApplicationInfo.FLAG_SYSTEM) != 0;
10748    }
10749
10750    private static boolean isPrivilegedApp(PackageParser.Package pkg) {
10751        return (pkg.applicationInfo.flags & ApplicationInfo.FLAG_PRIVILEGED) != 0;
10752    }
10753
10754    private static boolean isSystemApp(ApplicationInfo info) {
10755        return (info.flags & ApplicationInfo.FLAG_SYSTEM) != 0;
10756    }
10757
10758    private static boolean isSystemApp(PackageSetting ps) {
10759        return (ps.pkgFlags & ApplicationInfo.FLAG_SYSTEM) != 0;
10760    }
10761
10762    private static boolean isUpdatedSystemApp(PackageSetting ps) {
10763        return (ps.pkgFlags & ApplicationInfo.FLAG_UPDATED_SYSTEM_APP) != 0;
10764    }
10765
10766    private static boolean isUpdatedSystemApp(PackageParser.Package pkg) {
10767        return (pkg.applicationInfo.flags & ApplicationInfo.FLAG_UPDATED_SYSTEM_APP) != 0;
10768    }
10769
10770    private static boolean isUpdatedSystemApp(ApplicationInfo info) {
10771        return (info.flags & ApplicationInfo.FLAG_UPDATED_SYSTEM_APP) != 0;
10772    }
10773
10774    private int packageFlagsToInstallFlags(PackageSetting ps) {
10775        int installFlags = 0;
10776        if (isExternal(ps)) {
10777            installFlags |= PackageManager.INSTALL_EXTERNAL;
10778        }
10779        if (isForwardLocked(ps)) {
10780            installFlags |= PackageManager.INSTALL_FORWARD_LOCK;
10781        }
10782        return installFlags;
10783    }
10784
10785    private void deleteTempPackageFiles() {
10786        final FilenameFilter filter = new FilenameFilter() {
10787            public boolean accept(File dir, String name) {
10788                return name.startsWith("vmdl") && name.endsWith(".tmp");
10789            }
10790        };
10791        for (File file : mDrmAppPrivateInstallDir.listFiles(filter)) {
10792            file.delete();
10793        }
10794    }
10795
10796    @Override
10797    public void deletePackageAsUser(String packageName, IPackageDeleteObserver observer, int userId,
10798            int flags) {
10799        deletePackage(packageName, new LegacyPackageDeleteObserver(observer).getBinder(), userId,
10800                flags);
10801    }
10802
10803    @Override
10804    public void deletePackage(final String packageName,
10805            final IPackageDeleteObserver2 observer, final int userId, final int flags) {
10806        mContext.enforceCallingOrSelfPermission(
10807                android.Manifest.permission.DELETE_PACKAGES, null);
10808        final int uid = Binder.getCallingUid();
10809        if (UserHandle.getUserId(uid) != userId) {
10810            mContext.enforceCallingPermission(
10811                    android.Manifest.permission.INTERACT_ACROSS_USERS_FULL,
10812                    "deletePackage for user " + userId);
10813        }
10814        if (isUserRestricted(userId, UserManager.DISALLOW_UNINSTALL_APPS)) {
10815            try {
10816                observer.onPackageDeleted(packageName,
10817                        PackageManager.DELETE_FAILED_USER_RESTRICTED, null);
10818            } catch (RemoteException re) {
10819            }
10820            return;
10821        }
10822
10823        boolean uninstallBlocked = false;
10824        if ((flags & PackageManager.DELETE_ALL_USERS) != 0) {
10825            int[] users = sUserManager.getUserIds();
10826            for (int i = 0; i < users.length; ++i) {
10827                if (getBlockUninstallForUser(packageName, users[i])) {
10828                    uninstallBlocked = true;
10829                    break;
10830                }
10831            }
10832        } else {
10833            uninstallBlocked = getBlockUninstallForUser(packageName, userId);
10834        }
10835        if (uninstallBlocked) {
10836            try {
10837                observer.onPackageDeleted(packageName, PackageManager.DELETE_FAILED_OWNER_BLOCKED,
10838                        null);
10839            } catch (RemoteException re) {
10840            }
10841            return;
10842        }
10843
10844        if (DEBUG_REMOVE) {
10845            Slog.d(TAG, "deletePackageAsUser: pkg=" + packageName + " user=" + userId);
10846        }
10847        // Queue up an async operation since the package deletion may take a little while.
10848        mHandler.post(new Runnable() {
10849            public void run() {
10850                mHandler.removeCallbacks(this);
10851                final int returnCode = deletePackageX(packageName, userId, flags);
10852                if (observer != null) {
10853                    try {
10854                        observer.onPackageDeleted(packageName, returnCode, null);
10855                    } catch (RemoteException e) {
10856                        Log.i(TAG, "Observer no longer exists.");
10857                    } //end catch
10858                } //end if
10859            } //end run
10860        });
10861    }
10862
10863    private boolean isPackageDeviceAdmin(String packageName, int userId) {
10864        IDevicePolicyManager dpm = IDevicePolicyManager.Stub.asInterface(
10865                ServiceManager.getService(Context.DEVICE_POLICY_SERVICE));
10866        try {
10867            if (dpm != null) {
10868                if (dpm.isDeviceOwner(packageName)) {
10869                    return true;
10870                }
10871                int[] users;
10872                if (userId == UserHandle.USER_ALL) {
10873                    users = sUserManager.getUserIds();
10874                } else {
10875                    users = new int[]{userId};
10876                }
10877                for (int i = 0; i < users.length; ++i) {
10878                    if (dpm.packageHasActiveAdmins(packageName, users[i])) {
10879                        return true;
10880                    }
10881                }
10882            }
10883        } catch (RemoteException e) {
10884        }
10885        return false;
10886    }
10887
10888    /**
10889     *  This method is an internal method that could be get invoked either
10890     *  to delete an installed package or to clean up a failed installation.
10891     *  After deleting an installed package, a broadcast is sent to notify any
10892     *  listeners that the package has been installed. For cleaning up a failed
10893     *  installation, the broadcast is not necessary since the package's
10894     *  installation wouldn't have sent the initial broadcast either
10895     *  The key steps in deleting a package are
10896     *  deleting the package information in internal structures like mPackages,
10897     *  deleting the packages base directories through installd
10898     *  updating mSettings to reflect current status
10899     *  persisting settings for later use
10900     *  sending a broadcast if necessary
10901     */
10902    private int deletePackageX(String packageName, int userId, int flags) {
10903        final PackageRemovedInfo info = new PackageRemovedInfo();
10904        final boolean res;
10905
10906        final UserHandle removeForUser = (flags & PackageManager.DELETE_ALL_USERS) != 0
10907                ? UserHandle.ALL : new UserHandle(userId);
10908
10909        if (isPackageDeviceAdmin(packageName, removeForUser.getIdentifier())) {
10910            Slog.w(TAG, "Not removing package " + packageName + ": has active device admin");
10911            return PackageManager.DELETE_FAILED_DEVICE_POLICY_MANAGER;
10912        }
10913
10914        boolean removedForAllUsers = false;
10915        boolean systemUpdate = false;
10916
10917        // for the uninstall-updates case and restricted profiles, remember the per-
10918        // userhandle installed state
10919        int[] allUsers;
10920        boolean[] perUserInstalled;
10921        synchronized (mPackages) {
10922            PackageSetting ps = mSettings.mPackages.get(packageName);
10923            allUsers = sUserManager.getUserIds();
10924            perUserInstalled = new boolean[allUsers.length];
10925            for (int i = 0; i < allUsers.length; i++) {
10926                perUserInstalled[i] = ps != null ? ps.getInstalled(allUsers[i]) : false;
10927            }
10928        }
10929
10930        synchronized (mInstallLock) {
10931            if (DEBUG_REMOVE) Slog.d(TAG, "deletePackageX: pkg=" + packageName + " user=" + userId);
10932            res = deletePackageLI(packageName, removeForUser,
10933                    true, allUsers, perUserInstalled,
10934                    flags | REMOVE_CHATTY, info, true);
10935            systemUpdate = info.isRemovedPackageSystemUpdate;
10936            if (res && !systemUpdate && mPackages.get(packageName) == null) {
10937                removedForAllUsers = true;
10938            }
10939            if (DEBUG_REMOVE) Slog.d(TAG, "delete res: systemUpdate=" + systemUpdate
10940                    + " removedForAllUsers=" + removedForAllUsers);
10941        }
10942
10943        if (res) {
10944            info.sendBroadcast(true, systemUpdate, removedForAllUsers);
10945
10946            // If the removed package was a system update, the old system package
10947            // was re-enabled; we need to broadcast this information
10948            if (systemUpdate) {
10949                Bundle extras = new Bundle(1);
10950                extras.putInt(Intent.EXTRA_UID, info.removedAppId >= 0
10951                        ? info.removedAppId : info.uid);
10952                extras.putBoolean(Intent.EXTRA_REPLACING, true);
10953
10954                sendPackageBroadcast(Intent.ACTION_PACKAGE_ADDED, packageName,
10955                        extras, null, null, null);
10956                sendPackageBroadcast(Intent.ACTION_PACKAGE_REPLACED, packageName,
10957                        extras, null, null, null);
10958                sendPackageBroadcast(Intent.ACTION_MY_PACKAGE_REPLACED, null,
10959                        null, packageName, null, null);
10960            }
10961        }
10962        // Force a gc here.
10963        Runtime.getRuntime().gc();
10964        // Delete the resources here after sending the broadcast to let
10965        // other processes clean up before deleting resources.
10966        if (info.args != null) {
10967            synchronized (mInstallLock) {
10968                info.args.doPostDeleteLI(true);
10969            }
10970        }
10971
10972        return res ? PackageManager.DELETE_SUCCEEDED : PackageManager.DELETE_FAILED_INTERNAL_ERROR;
10973    }
10974
10975    static class PackageRemovedInfo {
10976        String removedPackage;
10977        int uid = -1;
10978        int removedAppId = -1;
10979        int[] removedUsers = null;
10980        boolean isRemovedPackageSystemUpdate = false;
10981        // Clean up resources deleted packages.
10982        InstallArgs args = null;
10983
10984        void sendBroadcast(boolean fullRemove, boolean replacing, boolean removedForAllUsers) {
10985            Bundle extras = new Bundle(1);
10986            extras.putInt(Intent.EXTRA_UID, removedAppId >= 0 ? removedAppId : uid);
10987            extras.putBoolean(Intent.EXTRA_DATA_REMOVED, fullRemove);
10988            if (replacing) {
10989                extras.putBoolean(Intent.EXTRA_REPLACING, true);
10990            }
10991            extras.putBoolean(Intent.EXTRA_REMOVED_FOR_ALL_USERS, removedForAllUsers);
10992            if (removedPackage != null) {
10993                sendPackageBroadcast(Intent.ACTION_PACKAGE_REMOVED, removedPackage,
10994                        extras, null, null, removedUsers);
10995                if (fullRemove && !replacing) {
10996                    sendPackageBroadcast(Intent.ACTION_PACKAGE_FULLY_REMOVED, removedPackage,
10997                            extras, null, null, removedUsers);
10998                }
10999            }
11000            if (removedAppId >= 0) {
11001                sendPackageBroadcast(Intent.ACTION_UID_REMOVED, null, extras, null, null,
11002                        removedUsers);
11003            }
11004        }
11005    }
11006
11007    /*
11008     * This method deletes the package from internal data structures. If the DONT_DELETE_DATA
11009     * flag is not set, the data directory is removed as well.
11010     * make sure this flag is set for partially installed apps. If not its meaningless to
11011     * delete a partially installed application.
11012     */
11013    private void removePackageDataLI(PackageSetting ps,
11014            int[] allUserHandles, boolean[] perUserInstalled,
11015            PackageRemovedInfo outInfo, int flags, boolean writeSettings) {
11016        String packageName = ps.name;
11017        if (DEBUG_REMOVE) Slog.d(TAG, "removePackageDataLI: " + ps);
11018        removePackageLI(ps, (flags&REMOVE_CHATTY) != 0);
11019        // Retrieve object to delete permissions for shared user later on
11020        final PackageSetting deletedPs;
11021        // reader
11022        synchronized (mPackages) {
11023            deletedPs = mSettings.mPackages.get(packageName);
11024            if (outInfo != null) {
11025                outInfo.removedPackage = packageName;
11026                outInfo.removedUsers = deletedPs != null
11027                        ? deletedPs.queryInstalledUsers(sUserManager.getUserIds(), true)
11028                        : null;
11029            }
11030        }
11031        if ((flags&PackageManager.DELETE_KEEP_DATA) == 0) {
11032            removeDataDirsLI(packageName);
11033            schedulePackageCleaning(packageName, UserHandle.USER_ALL, true);
11034        }
11035        // writer
11036        synchronized (mPackages) {
11037            if (deletedPs != null) {
11038                if ((flags&PackageManager.DELETE_KEEP_DATA) == 0) {
11039                    if (outInfo != null) {
11040                        mSettings.mKeySetManagerService.removeAppKeySetDataLPw(packageName);
11041                        outInfo.removedAppId = mSettings.removePackageLPw(packageName);
11042                    }
11043                    if (deletedPs != null) {
11044                        updatePermissionsLPw(deletedPs.name, null, 0);
11045                        if (deletedPs.sharedUser != null) {
11046                            // remove permissions associated with package
11047                            mSettings.updateSharedUserPermsLPw(deletedPs, mGlobalGids);
11048                        }
11049                    }
11050                    clearPackagePreferredActivitiesLPw(deletedPs.name, UserHandle.USER_ALL);
11051                }
11052                // make sure to preserve per-user disabled state if this removal was just
11053                // a downgrade of a system app to the factory package
11054                if (allUserHandles != null && perUserInstalled != null) {
11055                    if (DEBUG_REMOVE) {
11056                        Slog.d(TAG, "Propagating install state across downgrade");
11057                    }
11058                    for (int i = 0; i < allUserHandles.length; i++) {
11059                        if (DEBUG_REMOVE) {
11060                            Slog.d(TAG, "    user " + allUserHandles[i]
11061                                    + " => " + perUserInstalled[i]);
11062                        }
11063                        ps.setInstalled(perUserInstalled[i], allUserHandles[i]);
11064                    }
11065                }
11066            }
11067            // can downgrade to reader
11068            if (writeSettings) {
11069                // Save settings now
11070                mSettings.writeLPr();
11071            }
11072        }
11073        if (outInfo != null) {
11074            // A user ID was deleted here. Go through all users and remove it
11075            // from KeyStore.
11076            removeKeystoreDataIfNeeded(UserHandle.USER_ALL, outInfo.removedAppId);
11077        }
11078    }
11079
11080    static boolean locationIsPrivileged(File path) {
11081        try {
11082            final String privilegedAppDir = new File(Environment.getRootDirectory(), "priv-app")
11083                    .getCanonicalPath();
11084            return path.getCanonicalPath().startsWith(privilegedAppDir);
11085        } catch (IOException e) {
11086            Slog.e(TAG, "Unable to access code path " + path);
11087        }
11088        return false;
11089    }
11090
11091    /*
11092     * Tries to delete system package.
11093     */
11094    private boolean deleteSystemPackageLI(PackageSetting newPs,
11095            int[] allUserHandles, boolean[] perUserInstalled,
11096            int flags, PackageRemovedInfo outInfo, boolean writeSettings) {
11097        final boolean applyUserRestrictions
11098                = (allUserHandles != null) && (perUserInstalled != null);
11099        PackageSetting disabledPs = null;
11100        // Confirm if the system package has been updated
11101        // An updated system app can be deleted. This will also have to restore
11102        // the system pkg from system partition
11103        // reader
11104        synchronized (mPackages) {
11105            disabledPs = mSettings.getDisabledSystemPkgLPr(newPs.name);
11106        }
11107        if (DEBUG_REMOVE) Slog.d(TAG, "deleteSystemPackageLI: newPs=" + newPs
11108                + " disabledPs=" + disabledPs);
11109        if (disabledPs == null) {
11110            Slog.w(TAG, "Attempt to delete unknown system package "+ newPs.name);
11111            return false;
11112        } else if (DEBUG_REMOVE) {
11113            Slog.d(TAG, "Deleting system pkg from data partition");
11114        }
11115        if (DEBUG_REMOVE) {
11116            if (applyUserRestrictions) {
11117                Slog.d(TAG, "Remembering install states:");
11118                for (int i = 0; i < allUserHandles.length; i++) {
11119                    Slog.d(TAG, "   u=" + allUserHandles[i] + " inst=" + perUserInstalled[i]);
11120                }
11121            }
11122        }
11123        // Delete the updated package
11124        outInfo.isRemovedPackageSystemUpdate = true;
11125        if (disabledPs.versionCode < newPs.versionCode) {
11126            // Delete data for downgrades
11127            flags &= ~PackageManager.DELETE_KEEP_DATA;
11128        } else {
11129            // Preserve data by setting flag
11130            flags |= PackageManager.DELETE_KEEP_DATA;
11131        }
11132        boolean ret = deleteInstalledPackageLI(newPs, true, flags,
11133                allUserHandles, perUserInstalled, outInfo, writeSettings);
11134        if (!ret) {
11135            return false;
11136        }
11137        // writer
11138        synchronized (mPackages) {
11139            // Reinstate the old system package
11140            mSettings.enableSystemPackageLPw(newPs.name);
11141            // Remove any native libraries from the upgraded package.
11142            NativeLibraryHelper.removeNativeBinariesLI(newPs.legacyNativeLibraryPathString);
11143        }
11144        // Install the system package
11145        if (DEBUG_REMOVE) Slog.d(TAG, "Re-installing system package: " + disabledPs);
11146        int parseFlags = PackageParser.PARSE_MUST_BE_APK | PackageParser.PARSE_IS_SYSTEM;
11147        if (locationIsPrivileged(disabledPs.codePath)) {
11148            parseFlags |= PackageParser.PARSE_IS_PRIVILEGED;
11149        }
11150
11151        final PackageParser.Package newPkg;
11152        try {
11153            newPkg = scanPackageLI(disabledPs.codePath, parseFlags, SCAN_NO_PATHS, 0, null);
11154        } catch (PackageManagerException e) {
11155            Slog.w(TAG, "Failed to restore system package:" + newPs.name + ": " + e.getMessage());
11156            return false;
11157        }
11158
11159        // writer
11160        synchronized (mPackages) {
11161            PackageSetting ps = mSettings.mPackages.get(newPkg.packageName);
11162            updatePermissionsLPw(newPkg.packageName, newPkg,
11163                    UPDATE_PERMISSIONS_ALL | UPDATE_PERMISSIONS_REPLACE_PKG);
11164            if (applyUserRestrictions) {
11165                if (DEBUG_REMOVE) {
11166                    Slog.d(TAG, "Propagating install state across reinstall");
11167                }
11168                for (int i = 0; i < allUserHandles.length; i++) {
11169                    if (DEBUG_REMOVE) {
11170                        Slog.d(TAG, "    user " + allUserHandles[i]
11171                                + " => " + perUserInstalled[i]);
11172                    }
11173                    ps.setInstalled(perUserInstalled[i], allUserHandles[i]);
11174                }
11175                // Regardless of writeSettings we need to ensure that this restriction
11176                // state propagation is persisted
11177                mSettings.writeAllUsersPackageRestrictionsLPr();
11178            }
11179            // can downgrade to reader here
11180            if (writeSettings) {
11181                mSettings.writeLPr();
11182            }
11183        }
11184        return true;
11185    }
11186
11187    private boolean deleteInstalledPackageLI(PackageSetting ps,
11188            boolean deleteCodeAndResources, int flags,
11189            int[] allUserHandles, boolean[] perUserInstalled,
11190            PackageRemovedInfo outInfo, boolean writeSettings) {
11191        if (outInfo != null) {
11192            outInfo.uid = ps.appId;
11193        }
11194
11195        // Delete package data from internal structures and also remove data if flag is set
11196        removePackageDataLI(ps, allUserHandles, perUserInstalled, outInfo, flags, writeSettings);
11197
11198        // Delete application code and resources
11199        if (deleteCodeAndResources && (outInfo != null)) {
11200            outInfo.args = createInstallArgsForExisting(packageFlagsToInstallFlags(ps),
11201                    ps.codePathString, ps.resourcePathString, ps.legacyNativeLibraryPathString,
11202                    getAppDexInstructionSets(ps));
11203            if (DEBUG_SD_INSTALL) Slog.i(TAG, "args=" + outInfo.args);
11204        }
11205        return true;
11206    }
11207
11208    @Override
11209    public boolean setBlockUninstallForUser(String packageName, boolean blockUninstall,
11210            int userId) {
11211        mContext.enforceCallingOrSelfPermission(
11212                android.Manifest.permission.DELETE_PACKAGES, null);
11213        synchronized (mPackages) {
11214            PackageSetting ps = mSettings.mPackages.get(packageName);
11215            if (ps == null) {
11216                Log.i(TAG, "Package doesn't exist in set block uninstall " + packageName);
11217                return false;
11218            }
11219            if (!ps.getInstalled(userId)) {
11220                // Can't block uninstall for an app that is not installed or enabled.
11221                Log.i(TAG, "Package not installed in set block uninstall " + packageName);
11222                return false;
11223            }
11224            ps.setBlockUninstall(blockUninstall, userId);
11225            mSettings.writePackageRestrictionsLPr(userId);
11226        }
11227        return true;
11228    }
11229
11230    @Override
11231    public boolean getBlockUninstallForUser(String packageName, int userId) {
11232        synchronized (mPackages) {
11233            PackageSetting ps = mSettings.mPackages.get(packageName);
11234            if (ps == null) {
11235                Log.i(TAG, "Package doesn't exist in get block uninstall " + packageName);
11236                return false;
11237            }
11238            return ps.getBlockUninstall(userId);
11239        }
11240    }
11241
11242    /*
11243     * This method handles package deletion in general
11244     */
11245    private boolean deletePackageLI(String packageName, UserHandle user,
11246            boolean deleteCodeAndResources, int[] allUserHandles, boolean[] perUserInstalled,
11247            int flags, PackageRemovedInfo outInfo,
11248            boolean writeSettings) {
11249        if (packageName == null) {
11250            Slog.w(TAG, "Attempt to delete null packageName.");
11251            return false;
11252        }
11253        if (DEBUG_REMOVE) Slog.d(TAG, "deletePackageLI: " + packageName + " user " + user);
11254        PackageSetting ps;
11255        boolean dataOnly = false;
11256        int removeUser = -1;
11257        int appId = -1;
11258        synchronized (mPackages) {
11259            ps = mSettings.mPackages.get(packageName);
11260            if (ps == null) {
11261                Slog.w(TAG, "Package named '" + packageName + "' doesn't exist.");
11262                return false;
11263            }
11264            if ((!isSystemApp(ps) || (flags&PackageManager.DELETE_SYSTEM_APP) != 0) && user != null
11265                    && user.getIdentifier() != UserHandle.USER_ALL) {
11266                // The caller is asking that the package only be deleted for a single
11267                // user.  To do this, we just mark its uninstalled state and delete
11268                // its data.  If this is a system app, we only allow this to happen if
11269                // they have set the special DELETE_SYSTEM_APP which requests different
11270                // semantics than normal for uninstalling system apps.
11271                if (DEBUG_REMOVE) Slog.d(TAG, "Only deleting for single user");
11272                ps.setUserState(user.getIdentifier(),
11273                        COMPONENT_ENABLED_STATE_DEFAULT,
11274                        false, //installed
11275                        true,  //stopped
11276                        true,  //notLaunched
11277                        false, //hidden
11278                        null, null, null,
11279                        false // blockUninstall
11280                        );
11281                if (!isSystemApp(ps)) {
11282                    if (ps.isAnyInstalled(sUserManager.getUserIds())) {
11283                        // Other user still have this package installed, so all
11284                        // we need to do is clear this user's data and save that
11285                        // it is uninstalled.
11286                        if (DEBUG_REMOVE) Slog.d(TAG, "Still installed by other users");
11287                        removeUser = user.getIdentifier();
11288                        appId = ps.appId;
11289                        mSettings.writePackageRestrictionsLPr(removeUser);
11290                    } else {
11291                        // We need to set it back to 'installed' so the uninstall
11292                        // broadcasts will be sent correctly.
11293                        if (DEBUG_REMOVE) Slog.d(TAG, "Not installed by other users, full delete");
11294                        ps.setInstalled(true, user.getIdentifier());
11295                    }
11296                } else {
11297                    // This is a system app, so we assume that the
11298                    // other users still have this package installed, so all
11299                    // we need to do is clear this user's data and save that
11300                    // it is uninstalled.
11301                    if (DEBUG_REMOVE) Slog.d(TAG, "Deleting system app");
11302                    removeUser = user.getIdentifier();
11303                    appId = ps.appId;
11304                    mSettings.writePackageRestrictionsLPr(removeUser);
11305                }
11306            }
11307        }
11308
11309        if (removeUser >= 0) {
11310            // From above, we determined that we are deleting this only
11311            // for a single user.  Continue the work here.
11312            if (DEBUG_REMOVE) Slog.d(TAG, "Updating install state for user: " + removeUser);
11313            if (outInfo != null) {
11314                outInfo.removedPackage = packageName;
11315                outInfo.removedAppId = appId;
11316                outInfo.removedUsers = new int[] {removeUser};
11317            }
11318            mInstaller.clearUserData(packageName, removeUser);
11319            removeKeystoreDataIfNeeded(removeUser, appId);
11320            schedulePackageCleaning(packageName, removeUser, false);
11321            return true;
11322        }
11323
11324        if (dataOnly) {
11325            // Delete application data first
11326            if (DEBUG_REMOVE) Slog.d(TAG, "Removing package data only");
11327            removePackageDataLI(ps, null, null, outInfo, flags, writeSettings);
11328            return true;
11329        }
11330
11331        boolean ret = false;
11332        if (isSystemApp(ps)) {
11333            if (DEBUG_REMOVE) Slog.d(TAG, "Removing system package:" + ps.name);
11334            // When an updated system application is deleted we delete the existing resources as well and
11335            // fall back to existing code in system partition
11336            ret = deleteSystemPackageLI(ps, allUserHandles, perUserInstalled,
11337                    flags, outInfo, writeSettings);
11338        } else {
11339            if (DEBUG_REMOVE) Slog.d(TAG, "Removing non-system package:" + ps.name);
11340            // Kill application pre-emptively especially for apps on sd.
11341            killApplication(packageName, ps.appId, "uninstall pkg");
11342            ret = deleteInstalledPackageLI(ps, deleteCodeAndResources, flags,
11343                    allUserHandles, perUserInstalled,
11344                    outInfo, writeSettings);
11345        }
11346
11347        return ret;
11348    }
11349
11350    private final class ClearStorageConnection implements ServiceConnection {
11351        IMediaContainerService mContainerService;
11352
11353        @Override
11354        public void onServiceConnected(ComponentName name, IBinder service) {
11355            synchronized (this) {
11356                mContainerService = IMediaContainerService.Stub.asInterface(service);
11357                notifyAll();
11358            }
11359        }
11360
11361        @Override
11362        public void onServiceDisconnected(ComponentName name) {
11363        }
11364    }
11365
11366    private void clearExternalStorageDataSync(String packageName, int userId, boolean allData) {
11367        final boolean mounted;
11368        if (Environment.isExternalStorageEmulated()) {
11369            mounted = true;
11370        } else {
11371            final String status = Environment.getExternalStorageState();
11372
11373            mounted = status.equals(Environment.MEDIA_MOUNTED)
11374                    || status.equals(Environment.MEDIA_MOUNTED_READ_ONLY);
11375        }
11376
11377        if (!mounted) {
11378            return;
11379        }
11380
11381        final Intent containerIntent = new Intent().setComponent(DEFAULT_CONTAINER_COMPONENT);
11382        int[] users;
11383        if (userId == UserHandle.USER_ALL) {
11384            users = sUserManager.getUserIds();
11385        } else {
11386            users = new int[] { userId };
11387        }
11388        final ClearStorageConnection conn = new ClearStorageConnection();
11389        if (mContext.bindServiceAsUser(
11390                containerIntent, conn, Context.BIND_AUTO_CREATE, UserHandle.OWNER)) {
11391            try {
11392                for (int curUser : users) {
11393                    long timeout = SystemClock.uptimeMillis() + 5000;
11394                    synchronized (conn) {
11395                        long now = SystemClock.uptimeMillis();
11396                        while (conn.mContainerService == null && now < timeout) {
11397                            try {
11398                                conn.wait(timeout - now);
11399                            } catch (InterruptedException e) {
11400                            }
11401                        }
11402                    }
11403                    if (conn.mContainerService == null) {
11404                        return;
11405                    }
11406
11407                    final UserEnvironment userEnv = new UserEnvironment(curUser);
11408                    clearDirectory(conn.mContainerService,
11409                            userEnv.buildExternalStorageAppCacheDirs(packageName));
11410                    if (allData) {
11411                        clearDirectory(conn.mContainerService,
11412                                userEnv.buildExternalStorageAppDataDirs(packageName));
11413                        clearDirectory(conn.mContainerService,
11414                                userEnv.buildExternalStorageAppMediaDirs(packageName));
11415                    }
11416                }
11417            } finally {
11418                mContext.unbindService(conn);
11419            }
11420        }
11421    }
11422
11423    @Override
11424    public void clearApplicationUserData(final String packageName,
11425            final IPackageDataObserver observer, final int userId) {
11426        mContext.enforceCallingOrSelfPermission(
11427                android.Manifest.permission.CLEAR_APP_USER_DATA, null);
11428        enforceCrossUserPermission(Binder.getCallingUid(), userId, true, false, "clear application data");
11429        // Queue up an async operation since the package deletion may take a little while.
11430        mHandler.post(new Runnable() {
11431            public void run() {
11432                mHandler.removeCallbacks(this);
11433                final boolean succeeded;
11434                synchronized (mInstallLock) {
11435                    succeeded = clearApplicationUserDataLI(packageName, userId);
11436                }
11437                clearExternalStorageDataSync(packageName, userId, true);
11438                if (succeeded) {
11439                    // invoke DeviceStorageMonitor's update method to clear any notifications
11440                    DeviceStorageMonitorInternal
11441                            dsm = LocalServices.getService(DeviceStorageMonitorInternal.class);
11442                    if (dsm != null) {
11443                        dsm.checkMemory();
11444                    }
11445                }
11446                if(observer != null) {
11447                    try {
11448                        observer.onRemoveCompleted(packageName, succeeded);
11449                    } catch (RemoteException e) {
11450                        Log.i(TAG, "Observer no longer exists.");
11451                    }
11452                } //end if observer
11453            } //end run
11454        });
11455    }
11456
11457    private boolean clearApplicationUserDataLI(String packageName, int userId) {
11458        if (packageName == null) {
11459            Slog.w(TAG, "Attempt to delete null packageName.");
11460            return false;
11461        }
11462
11463        // Try finding details about the requested package
11464        PackageParser.Package pkg;
11465        synchronized (mPackages) {
11466            pkg = mPackages.get(packageName);
11467            if (pkg == null) {
11468                final PackageSetting ps = mSettings.mPackages.get(packageName);
11469                if (ps != null) {
11470                    pkg = ps.pkg;
11471                }
11472            }
11473        }
11474
11475        if (pkg == null) {
11476            Slog.w(TAG, "Package named '" + packageName + "' doesn't exist.");
11477        }
11478
11479        // Always delete data directories for package, even if we found no other
11480        // record of app. This helps users recover from UID mismatches without
11481        // resorting to a full data wipe.
11482        int retCode = mInstaller.clearUserData(packageName, userId);
11483        if (retCode < 0) {
11484            Slog.w(TAG, "Couldn't remove cache files for package: " + packageName);
11485            return false;
11486        }
11487
11488        if (pkg == null) {
11489            return false;
11490        }
11491
11492        if (pkg != null && pkg.applicationInfo != null) {
11493            final int appId = pkg.applicationInfo.uid;
11494            removeKeystoreDataIfNeeded(userId, appId);
11495        }
11496
11497        // Create a native library symlink only if we have native libraries
11498        // and if the native libraries are 32 bit libraries. We do not provide
11499        // this symlink for 64 bit libraries.
11500        if (pkg != null && pkg.applicationInfo.primaryCpuAbi != null &&
11501                !VMRuntime.is64BitAbi(pkg.applicationInfo.primaryCpuAbi)) {
11502            final String nativeLibPath = pkg.applicationInfo.nativeLibraryDir;
11503            if (mInstaller.linkNativeLibraryDirectory(pkg.packageName, nativeLibPath, userId) < 0) {
11504                Slog.w(TAG, "Failed linking native library dir");
11505                return false;
11506            }
11507        }
11508
11509        return true;
11510    }
11511
11512    /**
11513     * Remove entries from the keystore daemon. Will only remove it if the
11514     * {@code appId} is valid.
11515     */
11516    private static void removeKeystoreDataIfNeeded(int userId, int appId) {
11517        if (appId < 0) {
11518            return;
11519        }
11520
11521        final KeyStore keyStore = KeyStore.getInstance();
11522        if (keyStore != null) {
11523            if (userId == UserHandle.USER_ALL) {
11524                for (final int individual : sUserManager.getUserIds()) {
11525                    keyStore.clearUid(UserHandle.getUid(individual, appId));
11526                }
11527            } else {
11528                keyStore.clearUid(UserHandle.getUid(userId, appId));
11529            }
11530        } else {
11531            Slog.w(TAG, "Could not contact keystore to clear entries for app id " + appId);
11532        }
11533    }
11534
11535    @Override
11536    public void deleteApplicationCacheFiles(final String packageName,
11537            final IPackageDataObserver observer) {
11538        mContext.enforceCallingOrSelfPermission(
11539                android.Manifest.permission.DELETE_CACHE_FILES, null);
11540        // Queue up an async operation since the package deletion may take a little while.
11541        final int userId = UserHandle.getCallingUserId();
11542        mHandler.post(new Runnable() {
11543            public void run() {
11544                mHandler.removeCallbacks(this);
11545                final boolean succeded;
11546                synchronized (mInstallLock) {
11547                    succeded = deleteApplicationCacheFilesLI(packageName, userId);
11548                }
11549                clearExternalStorageDataSync(packageName, userId, false);
11550                if(observer != null) {
11551                    try {
11552                        observer.onRemoveCompleted(packageName, succeded);
11553                    } catch (RemoteException e) {
11554                        Log.i(TAG, "Observer no longer exists.");
11555                    }
11556                } //end if observer
11557            } //end run
11558        });
11559    }
11560
11561    private boolean deleteApplicationCacheFilesLI(String packageName, int userId) {
11562        if (packageName == null) {
11563            Slog.w(TAG, "Attempt to delete null packageName.");
11564            return false;
11565        }
11566        PackageParser.Package p;
11567        synchronized (mPackages) {
11568            p = mPackages.get(packageName);
11569        }
11570        if (p == null) {
11571            Slog.w(TAG, "Package named '" + packageName +"' doesn't exist.");
11572            return false;
11573        }
11574        final ApplicationInfo applicationInfo = p.applicationInfo;
11575        if (applicationInfo == null) {
11576            Slog.w(TAG, "Package " + packageName + " has no applicationInfo.");
11577            return false;
11578        }
11579        int retCode = mInstaller.deleteCacheFiles(packageName, userId);
11580        if (retCode < 0) {
11581            Slog.w(TAG, "Couldn't remove cache files for package: "
11582                       + packageName + " u" + userId);
11583            return false;
11584        }
11585        return true;
11586    }
11587
11588    @Override
11589    public void getPackageSizeInfo(final String packageName, int userHandle,
11590            final IPackageStatsObserver observer) {
11591        mContext.enforceCallingOrSelfPermission(
11592                android.Manifest.permission.GET_PACKAGE_SIZE, null);
11593        if (packageName == null) {
11594            throw new IllegalArgumentException("Attempt to get size of null packageName");
11595        }
11596
11597        PackageStats stats = new PackageStats(packageName, userHandle);
11598
11599        /*
11600         * Queue up an async operation since the package measurement may take a
11601         * little while.
11602         */
11603        Message msg = mHandler.obtainMessage(INIT_COPY);
11604        msg.obj = new MeasureParams(stats, observer);
11605        mHandler.sendMessage(msg);
11606    }
11607
11608    private boolean getPackageSizeInfoLI(String packageName, int userHandle,
11609            PackageStats pStats) {
11610        if (packageName == null) {
11611            Slog.w(TAG, "Attempt to get size of null packageName.");
11612            return false;
11613        }
11614        PackageParser.Package p;
11615        boolean dataOnly = false;
11616        String libDirRoot = null;
11617        String asecPath = null;
11618        PackageSetting ps = null;
11619        synchronized (mPackages) {
11620            p = mPackages.get(packageName);
11621            ps = mSettings.mPackages.get(packageName);
11622            if(p == null) {
11623                dataOnly = true;
11624                if((ps == null) || (ps.pkg == null)) {
11625                    Slog.w(TAG, "Package named '" + packageName +"' doesn't exist.");
11626                    return false;
11627                }
11628                p = ps.pkg;
11629            }
11630            if (ps != null) {
11631                libDirRoot = ps.legacyNativeLibraryPathString;
11632            }
11633            if (p != null && (isExternal(p) || isForwardLocked(p))) {
11634                String secureContainerId = cidFromCodePath(p.applicationInfo.getBaseCodePath());
11635                if (secureContainerId != null) {
11636                    asecPath = PackageHelper.getSdFilesystem(secureContainerId);
11637                }
11638            }
11639        }
11640        String publicSrcDir = null;
11641        if(!dataOnly) {
11642            final ApplicationInfo applicationInfo = p.applicationInfo;
11643            if (applicationInfo == null) {
11644                Slog.w(TAG, "Package " + packageName + " has no applicationInfo.");
11645                return false;
11646            }
11647            if (isForwardLocked(p)) {
11648                publicSrcDir = applicationInfo.getBaseResourcePath();
11649            }
11650        }
11651        // TODO: extend to measure size of split APKs
11652        // TODO(multiArch): Extend getSizeInfo to look at the full subdirectory tree,
11653        // not just the first level.
11654        // TODO(multiArch): Extend getSizeInfo to look at *all* instruction sets, not
11655        // just the primary.
11656        String[] dexCodeInstructionSets = getDexCodeInstructionSets(getAppDexInstructionSets(ps));
11657        int res = mInstaller.getSizeInfo(packageName, userHandle, p.baseCodePath, libDirRoot,
11658                publicSrcDir, asecPath, dexCodeInstructionSets, pStats);
11659        if (res < 0) {
11660            return false;
11661        }
11662
11663        // Fix-up for forward-locked applications in ASEC containers.
11664        if (!isExternal(p)) {
11665            pStats.codeSize += pStats.externalCodeSize;
11666            pStats.externalCodeSize = 0L;
11667        }
11668
11669        return true;
11670    }
11671
11672
11673    @Override
11674    public void addPackageToPreferred(String packageName) {
11675        Slog.w(TAG, "addPackageToPreferred: this is now a no-op");
11676    }
11677
11678    @Override
11679    public void removePackageFromPreferred(String packageName) {
11680        Slog.w(TAG, "removePackageFromPreferred: this is now a no-op");
11681    }
11682
11683    @Override
11684    public List<PackageInfo> getPreferredPackages(int flags) {
11685        return new ArrayList<PackageInfo>();
11686    }
11687
11688    private int getUidTargetSdkVersionLockedLPr(int uid) {
11689        Object obj = mSettings.getUserIdLPr(uid);
11690        if (obj instanceof SharedUserSetting) {
11691            final SharedUserSetting sus = (SharedUserSetting) obj;
11692            int vers = Build.VERSION_CODES.CUR_DEVELOPMENT;
11693            final Iterator<PackageSetting> it = sus.packages.iterator();
11694            while (it.hasNext()) {
11695                final PackageSetting ps = it.next();
11696                if (ps.pkg != null) {
11697                    int v = ps.pkg.applicationInfo.targetSdkVersion;
11698                    if (v < vers) vers = v;
11699                }
11700            }
11701            return vers;
11702        } else if (obj instanceof PackageSetting) {
11703            final PackageSetting ps = (PackageSetting) obj;
11704            if (ps.pkg != null) {
11705                return ps.pkg.applicationInfo.targetSdkVersion;
11706            }
11707        }
11708        return Build.VERSION_CODES.CUR_DEVELOPMENT;
11709    }
11710
11711    @Override
11712    public void addPreferredActivity(IntentFilter filter, int match,
11713            ComponentName[] set, ComponentName activity, int userId) {
11714        addPreferredActivityInternal(filter, match, set, activity, true, userId,
11715                "Adding preferred");
11716    }
11717
11718    private void addPreferredActivityInternal(IntentFilter filter, int match,
11719            ComponentName[] set, ComponentName activity, boolean always, int userId,
11720            String opname) {
11721        // writer
11722        int callingUid = Binder.getCallingUid();
11723        enforceCrossUserPermission(callingUid, userId, true, false, "add preferred activity");
11724        if (filter.countActions() == 0) {
11725            Slog.w(TAG, "Cannot set a preferred activity with no filter actions");
11726            return;
11727        }
11728        synchronized (mPackages) {
11729            if (mContext.checkCallingOrSelfPermission(
11730                    android.Manifest.permission.SET_PREFERRED_APPLICATIONS)
11731                    != PackageManager.PERMISSION_GRANTED) {
11732                if (getUidTargetSdkVersionLockedLPr(callingUid)
11733                        < Build.VERSION_CODES.FROYO) {
11734                    Slog.w(TAG, "Ignoring addPreferredActivity() from uid "
11735                            + callingUid);
11736                    return;
11737                }
11738                mContext.enforceCallingOrSelfPermission(
11739                        android.Manifest.permission.SET_PREFERRED_APPLICATIONS, null);
11740            }
11741
11742            PreferredIntentResolver pir = mSettings.editPreferredActivitiesLPw(userId);
11743            Slog.i(TAG, opname + " activity " + activity.flattenToShortString() + " for user "
11744                    + userId + ":");
11745            filter.dump(new LogPrinter(Log.INFO, TAG), "  ");
11746            pir.addFilter(new PreferredActivity(filter, match, set, activity, always));
11747            scheduleWritePackageRestrictionsLocked(userId);
11748        }
11749    }
11750
11751    @Override
11752    public void replacePreferredActivity(IntentFilter filter, int match,
11753            ComponentName[] set, ComponentName activity, int userId) {
11754        if (filter.countActions() != 1) {
11755            throw new IllegalArgumentException(
11756                    "replacePreferredActivity expects filter to have only 1 action.");
11757        }
11758        if (filter.countDataAuthorities() != 0
11759                || filter.countDataPaths() != 0
11760                || filter.countDataSchemes() > 1
11761                || filter.countDataTypes() != 0) {
11762            throw new IllegalArgumentException(
11763                    "replacePreferredActivity expects filter to have no data authorities, " +
11764                    "paths, or types; and at most one scheme.");
11765        }
11766
11767        final int callingUid = Binder.getCallingUid();
11768        enforceCrossUserPermission(callingUid, userId, true, false, "replace preferred activity");
11769        synchronized (mPackages) {
11770            if (mContext.checkCallingOrSelfPermission(
11771                    android.Manifest.permission.SET_PREFERRED_APPLICATIONS)
11772                    != PackageManager.PERMISSION_GRANTED) {
11773                if (getUidTargetSdkVersionLockedLPr(callingUid)
11774                        < Build.VERSION_CODES.FROYO) {
11775                    Slog.w(TAG, "Ignoring replacePreferredActivity() from uid "
11776                            + Binder.getCallingUid());
11777                    return;
11778                }
11779                mContext.enforceCallingOrSelfPermission(
11780                        android.Manifest.permission.SET_PREFERRED_APPLICATIONS, null);
11781            }
11782
11783            PreferredIntentResolver pir = mSettings.mPreferredActivities.get(userId);
11784            if (pir != null) {
11785                // Get all of the existing entries that exactly match this filter.
11786                ArrayList<PreferredActivity> existing = pir.findFilters(filter);
11787                if (existing != null && existing.size() == 1) {
11788                    PreferredActivity cur = existing.get(0);
11789                    if (DEBUG_PREFERRED) {
11790                        Slog.i(TAG, "Checking replace of preferred:");
11791                        filter.dump(new LogPrinter(Log.INFO, TAG), "  ");
11792                        if (!cur.mPref.mAlways) {
11793                            Slog.i(TAG, "  -- CUR; not mAlways!");
11794                        } else {
11795                            Slog.i(TAG, "  -- CUR: mMatch=" + cur.mPref.mMatch);
11796                            Slog.i(TAG, "  -- CUR: mSet="
11797                                    + Arrays.toString(cur.mPref.mSetComponents));
11798                            Slog.i(TAG, "  -- CUR: mComponent=" + cur.mPref.mShortComponent);
11799                            Slog.i(TAG, "  -- NEW: mMatch="
11800                                    + (match&IntentFilter.MATCH_CATEGORY_MASK));
11801                            Slog.i(TAG, "  -- CUR: mSet=" + Arrays.toString(set));
11802                            Slog.i(TAG, "  -- CUR: mComponent=" + activity.flattenToShortString());
11803                        }
11804                    }
11805                    if (cur.mPref.mAlways && cur.mPref.mComponent.equals(activity)
11806                            && cur.mPref.mMatch == (match&IntentFilter.MATCH_CATEGORY_MASK)
11807                            && cur.mPref.sameSet(set)) {
11808                        // Setting the preferred activity to what it happens to be already
11809                        if (DEBUG_PREFERRED) {
11810                            Slog.i(TAG, "Replacing with same preferred activity "
11811                                    + cur.mPref.mShortComponent + " for user "
11812                                    + userId + ":");
11813                            filter.dump(new LogPrinter(Log.INFO, TAG), "  ");
11814                        }
11815                        return;
11816                    }
11817                }
11818
11819                if (existing != null) {
11820                    if (DEBUG_PREFERRED) {
11821                        Slog.i(TAG, existing.size() + " existing preferred matches for:");
11822                        filter.dump(new LogPrinter(Log.INFO, TAG), "  ");
11823                    }
11824                    for (int i = 0; i < existing.size(); i++) {
11825                        PreferredActivity pa = existing.get(i);
11826                        if (DEBUG_PREFERRED) {
11827                            Slog.i(TAG, "Removing existing preferred activity "
11828                                    + pa.mPref.mComponent + ":");
11829                            pa.dump(new LogPrinter(Log.INFO, TAG), "  ");
11830                        }
11831                        pir.removeFilter(pa);
11832                    }
11833                }
11834            }
11835            addPreferredActivityInternal(filter, match, set, activity, true, userId,
11836                    "Replacing preferred");
11837        }
11838    }
11839
11840    @Override
11841    public void clearPackagePreferredActivities(String packageName) {
11842        final int uid = Binder.getCallingUid();
11843        // writer
11844        synchronized (mPackages) {
11845            PackageParser.Package pkg = mPackages.get(packageName);
11846            if (pkg == null || pkg.applicationInfo.uid != uid) {
11847                if (mContext.checkCallingOrSelfPermission(
11848                        android.Manifest.permission.SET_PREFERRED_APPLICATIONS)
11849                        != PackageManager.PERMISSION_GRANTED) {
11850                    if (getUidTargetSdkVersionLockedLPr(Binder.getCallingUid())
11851                            < Build.VERSION_CODES.FROYO) {
11852                        Slog.w(TAG, "Ignoring clearPackagePreferredActivities() from uid "
11853                                + Binder.getCallingUid());
11854                        return;
11855                    }
11856                    mContext.enforceCallingOrSelfPermission(
11857                            android.Manifest.permission.SET_PREFERRED_APPLICATIONS, null);
11858                }
11859            }
11860
11861            int user = UserHandle.getCallingUserId();
11862            if (clearPackagePreferredActivitiesLPw(packageName, user)) {
11863                scheduleWritePackageRestrictionsLocked(user);
11864            }
11865        }
11866    }
11867
11868    /** This method takes a specific user id as well as UserHandle.USER_ALL. */
11869    boolean clearPackagePreferredActivitiesLPw(String packageName, int userId) {
11870        ArrayList<PreferredActivity> removed = null;
11871        boolean changed = false;
11872        for (int i=0; i<mSettings.mPreferredActivities.size(); i++) {
11873            final int thisUserId = mSettings.mPreferredActivities.keyAt(i);
11874            PreferredIntentResolver pir = mSettings.mPreferredActivities.valueAt(i);
11875            if (userId != UserHandle.USER_ALL && userId != thisUserId) {
11876                continue;
11877            }
11878            Iterator<PreferredActivity> it = pir.filterIterator();
11879            while (it.hasNext()) {
11880                PreferredActivity pa = it.next();
11881                // Mark entry for removal only if it matches the package name
11882                // and the entry is of type "always".
11883                if (packageName == null ||
11884                        (pa.mPref.mComponent.getPackageName().equals(packageName)
11885                                && pa.mPref.mAlways)) {
11886                    if (removed == null) {
11887                        removed = new ArrayList<PreferredActivity>();
11888                    }
11889                    removed.add(pa);
11890                }
11891            }
11892            if (removed != null) {
11893                for (int j=0; j<removed.size(); j++) {
11894                    PreferredActivity pa = removed.get(j);
11895                    pir.removeFilter(pa);
11896                }
11897                changed = true;
11898            }
11899        }
11900        return changed;
11901    }
11902
11903    @Override
11904    public void resetPreferredActivities(int userId) {
11905        /* TODO: Actually use userId. Why is it being passed in? */
11906        mContext.enforceCallingOrSelfPermission(
11907                android.Manifest.permission.SET_PREFERRED_APPLICATIONS, null);
11908        // writer
11909        synchronized (mPackages) {
11910            int user = UserHandle.getCallingUserId();
11911            clearPackagePreferredActivitiesLPw(null, user);
11912            mSettings.readDefaultPreferredAppsLPw(this, user);
11913            scheduleWritePackageRestrictionsLocked(user);
11914        }
11915    }
11916
11917    @Override
11918    public int getPreferredActivities(List<IntentFilter> outFilters,
11919            List<ComponentName> outActivities, String packageName) {
11920
11921        int num = 0;
11922        final int userId = UserHandle.getCallingUserId();
11923        // reader
11924        synchronized (mPackages) {
11925            PreferredIntentResolver pir = mSettings.mPreferredActivities.get(userId);
11926            if (pir != null) {
11927                final Iterator<PreferredActivity> it = pir.filterIterator();
11928                while (it.hasNext()) {
11929                    final PreferredActivity pa = it.next();
11930                    if (packageName == null
11931                            || (pa.mPref.mComponent.getPackageName().equals(packageName)
11932                                    && pa.mPref.mAlways)) {
11933                        if (outFilters != null) {
11934                            outFilters.add(new IntentFilter(pa));
11935                        }
11936                        if (outActivities != null) {
11937                            outActivities.add(pa.mPref.mComponent);
11938                        }
11939                    }
11940                }
11941            }
11942        }
11943
11944        return num;
11945    }
11946
11947    @Override
11948    public void addPersistentPreferredActivity(IntentFilter filter, ComponentName activity,
11949            int userId) {
11950        int callingUid = Binder.getCallingUid();
11951        if (callingUid != Process.SYSTEM_UID) {
11952            throw new SecurityException(
11953                    "addPersistentPreferredActivity can only be run by the system");
11954        }
11955        if (filter.countActions() == 0) {
11956            Slog.w(TAG, "Cannot set a preferred activity with no filter actions");
11957            return;
11958        }
11959        synchronized (mPackages) {
11960            Slog.i(TAG, "Adding persistent preferred activity " + activity + " for user " + userId +
11961                    " :");
11962            filter.dump(new LogPrinter(Log.INFO, TAG), "  ");
11963            mSettings.editPersistentPreferredActivitiesLPw(userId).addFilter(
11964                    new PersistentPreferredActivity(filter, activity));
11965            scheduleWritePackageRestrictionsLocked(userId);
11966        }
11967    }
11968
11969    @Override
11970    public void clearPackagePersistentPreferredActivities(String packageName, int userId) {
11971        int callingUid = Binder.getCallingUid();
11972        if (callingUid != Process.SYSTEM_UID) {
11973            throw new SecurityException(
11974                    "clearPackagePersistentPreferredActivities can only be run by the system");
11975        }
11976        ArrayList<PersistentPreferredActivity> removed = null;
11977        boolean changed = false;
11978        synchronized (mPackages) {
11979            for (int i=0; i<mSettings.mPersistentPreferredActivities.size(); i++) {
11980                final int thisUserId = mSettings.mPersistentPreferredActivities.keyAt(i);
11981                PersistentPreferredIntentResolver ppir = mSettings.mPersistentPreferredActivities
11982                        .valueAt(i);
11983                if (userId != thisUserId) {
11984                    continue;
11985                }
11986                Iterator<PersistentPreferredActivity> it = ppir.filterIterator();
11987                while (it.hasNext()) {
11988                    PersistentPreferredActivity ppa = it.next();
11989                    // Mark entry for removal only if it matches the package name.
11990                    if (ppa.mComponent.getPackageName().equals(packageName)) {
11991                        if (removed == null) {
11992                            removed = new ArrayList<PersistentPreferredActivity>();
11993                        }
11994                        removed.add(ppa);
11995                    }
11996                }
11997                if (removed != null) {
11998                    for (int j=0; j<removed.size(); j++) {
11999                        PersistentPreferredActivity ppa = removed.get(j);
12000                        ppir.removeFilter(ppa);
12001                    }
12002                    changed = true;
12003                }
12004            }
12005
12006            if (changed) {
12007                scheduleWritePackageRestrictionsLocked(userId);
12008            }
12009        }
12010    }
12011
12012    @Override
12013    public void addCrossProfileIntentFilter(IntentFilter intentFilter, String ownerPackage,
12014            int ownerUserId, int sourceUserId, int targetUserId, int flags) {
12015        mContext.enforceCallingOrSelfPermission(
12016                        android.Manifest.permission.INTERACT_ACROSS_USERS_FULL, null);
12017        int callingUid = Binder.getCallingUid();
12018        enforceOwnerRights(ownerPackage, ownerUserId, callingUid);
12019        enforceShellRestriction(UserManager.DISALLOW_DEBUGGING_FEATURES, callingUid, sourceUserId);
12020        if (intentFilter.countActions() == 0) {
12021            Slog.w(TAG, "Cannot set a crossProfile intent filter with no filter actions");
12022            return;
12023        }
12024        synchronized (mPackages) {
12025            CrossProfileIntentFilter newFilter = new CrossProfileIntentFilter(intentFilter,
12026                    ownerPackage, UserHandle.getUserId(callingUid), targetUserId, flags);
12027            CrossProfileIntentResolver resolver =
12028                    mSettings.editCrossProfileIntentResolverLPw(sourceUserId);
12029            ArrayList<CrossProfileIntentFilter> existing = resolver.findFilters(intentFilter);
12030            // We have all those whose filter is equal. Now checking if the rest is equal as well.
12031            if (existing != null) {
12032                int size = existing.size();
12033                for (int i = 0; i < size; i++) {
12034                    if (newFilter.equalsIgnoreFilter(existing.get(i))) {
12035                        return;
12036                    }
12037                }
12038            }
12039            resolver.addFilter(newFilter);
12040            scheduleWritePackageRestrictionsLocked(sourceUserId);
12041        }
12042    }
12043
12044    @Override
12045    public void clearCrossProfileIntentFilters(int sourceUserId, String ownerPackage,
12046            int ownerUserId) {
12047        mContext.enforceCallingOrSelfPermission(
12048                        android.Manifest.permission.INTERACT_ACROSS_USERS_FULL, null);
12049        int callingUid = Binder.getCallingUid();
12050        enforceOwnerRights(ownerPackage, ownerUserId, callingUid);
12051        enforceShellRestriction(UserManager.DISALLOW_DEBUGGING_FEATURES, callingUid, sourceUserId);
12052        int callingUserId = UserHandle.getUserId(callingUid);
12053        synchronized (mPackages) {
12054            CrossProfileIntentResolver resolver =
12055                    mSettings.editCrossProfileIntentResolverLPw(sourceUserId);
12056            ArraySet<CrossProfileIntentFilter> set =
12057                    new ArraySet<CrossProfileIntentFilter>(resolver.filterSet());
12058            for (CrossProfileIntentFilter filter : set) {
12059                if (filter.getOwnerPackage().equals(ownerPackage)
12060                        && filter.getOwnerUserId() == callingUserId) {
12061                    resolver.removeFilter(filter);
12062                }
12063            }
12064            scheduleWritePackageRestrictionsLocked(sourceUserId);
12065        }
12066    }
12067
12068    // Enforcing that callingUid is owning pkg on userId
12069    private void enforceOwnerRights(String pkg, int userId, int callingUid) {
12070        // The system owns everything.
12071        if (UserHandle.getAppId(callingUid) == Process.SYSTEM_UID) {
12072            return;
12073        }
12074        int callingUserId = UserHandle.getUserId(callingUid);
12075        if (callingUserId != userId) {
12076            throw new SecurityException("calling uid " + callingUid
12077                    + " pretends to own " + pkg + " on user " + userId + " but belongs to user "
12078                    + callingUserId);
12079        }
12080        PackageInfo pi = getPackageInfo(pkg, 0, callingUserId);
12081        if (pi == null) {
12082            throw new IllegalArgumentException("Unknown package " + pkg + " on user "
12083                    + callingUserId);
12084        }
12085        if (!UserHandle.isSameApp(pi.applicationInfo.uid, callingUid)) {
12086            throw new SecurityException("Calling uid " + callingUid
12087                    + " does not own package " + pkg);
12088        }
12089    }
12090
12091    @Override
12092    public ComponentName getHomeActivities(List<ResolveInfo> allHomeCandidates) {
12093        Intent intent = new Intent(Intent.ACTION_MAIN);
12094        intent.addCategory(Intent.CATEGORY_HOME);
12095
12096        final int callingUserId = UserHandle.getCallingUserId();
12097        List<ResolveInfo> list = queryIntentActivities(intent, null,
12098                PackageManager.GET_META_DATA, callingUserId);
12099        ResolveInfo preferred = findPreferredActivity(intent, null, 0, list, 0,
12100                true, false, false, callingUserId);
12101
12102        allHomeCandidates.clear();
12103        if (list != null) {
12104            for (ResolveInfo ri : list) {
12105                allHomeCandidates.add(ri);
12106            }
12107        }
12108        return (preferred == null || preferred.activityInfo == null)
12109                ? null
12110                : new ComponentName(preferred.activityInfo.packageName,
12111                        preferred.activityInfo.name);
12112    }
12113
12114    @Override
12115    public void setApplicationEnabledSetting(String appPackageName,
12116            int newState, int flags, int userId, String callingPackage) {
12117        if (!sUserManager.exists(userId)) return;
12118        if (callingPackage == null) {
12119            callingPackage = Integer.toString(Binder.getCallingUid());
12120        }
12121        setEnabledSetting(appPackageName, null, newState, flags, userId, callingPackage);
12122    }
12123
12124    @Override
12125    public void setComponentEnabledSetting(ComponentName componentName,
12126            int newState, int flags, int userId) {
12127        if (!sUserManager.exists(userId)) return;
12128        setEnabledSetting(componentName.getPackageName(),
12129                componentName.getClassName(), newState, flags, userId, null);
12130    }
12131
12132    private void setEnabledSetting(final String packageName, String className, int newState,
12133            final int flags, int userId, String callingPackage) {
12134        if (!(newState == COMPONENT_ENABLED_STATE_DEFAULT
12135              || newState == COMPONENT_ENABLED_STATE_ENABLED
12136              || newState == COMPONENT_ENABLED_STATE_DISABLED
12137              || newState == COMPONENT_ENABLED_STATE_DISABLED_USER
12138              || newState == COMPONENT_ENABLED_STATE_DISABLED_UNTIL_USED)) {
12139            throw new IllegalArgumentException("Invalid new component state: "
12140                    + newState);
12141        }
12142        PackageSetting pkgSetting;
12143        final int uid = Binder.getCallingUid();
12144        final int permission = mContext.checkCallingOrSelfPermission(
12145                android.Manifest.permission.CHANGE_COMPONENT_ENABLED_STATE);
12146        enforceCrossUserPermission(uid, userId, false, true, "set enabled");
12147        final boolean allowedByPermission = (permission == PackageManager.PERMISSION_GRANTED);
12148        boolean sendNow = false;
12149        boolean isApp = (className == null);
12150        String componentName = isApp ? packageName : className;
12151        int packageUid = -1;
12152        ArrayList<String> components;
12153
12154        // writer
12155        synchronized (mPackages) {
12156            pkgSetting = mSettings.mPackages.get(packageName);
12157            if (pkgSetting == null) {
12158                if (className == null) {
12159                    throw new IllegalArgumentException(
12160                            "Unknown package: " + packageName);
12161                }
12162                throw new IllegalArgumentException(
12163                        "Unknown component: " + packageName
12164                        + "/" + className);
12165            }
12166            // Allow root and verify that userId is not being specified by a different user
12167            if (!allowedByPermission && !UserHandle.isSameApp(uid, pkgSetting.appId)) {
12168                throw new SecurityException(
12169                        "Permission Denial: attempt to change component state from pid="
12170                        + Binder.getCallingPid()
12171                        + ", uid=" + uid + ", package uid=" + pkgSetting.appId);
12172            }
12173            if (className == null) {
12174                // We're dealing with an application/package level state change
12175                if (pkgSetting.getEnabled(userId) == newState) {
12176                    // Nothing to do
12177                    return;
12178                }
12179                if (newState == PackageManager.COMPONENT_ENABLED_STATE_DEFAULT
12180                    || newState == PackageManager.COMPONENT_ENABLED_STATE_ENABLED) {
12181                    // Don't care about who enables an app.
12182                    callingPackage = null;
12183                }
12184                pkgSetting.setEnabled(newState, userId, callingPackage);
12185                // pkgSetting.pkg.mSetEnabled = newState;
12186            } else {
12187                // We're dealing with a component level state change
12188                // First, verify that this is a valid class name.
12189                PackageParser.Package pkg = pkgSetting.pkg;
12190                if (pkg == null || !pkg.hasComponentClassName(className)) {
12191                    if (pkg.applicationInfo.targetSdkVersion >= Build.VERSION_CODES.JELLY_BEAN) {
12192                        throw new IllegalArgumentException("Component class " + className
12193                                + " does not exist in " + packageName);
12194                    } else {
12195                        Slog.w(TAG, "Failed setComponentEnabledSetting: component class "
12196                                + className + " does not exist in " + packageName);
12197                    }
12198                }
12199                switch (newState) {
12200                case COMPONENT_ENABLED_STATE_ENABLED:
12201                    if (!pkgSetting.enableComponentLPw(className, userId)) {
12202                        return;
12203                    }
12204                    break;
12205                case COMPONENT_ENABLED_STATE_DISABLED:
12206                    if (!pkgSetting.disableComponentLPw(className, userId)) {
12207                        return;
12208                    }
12209                    break;
12210                case COMPONENT_ENABLED_STATE_DEFAULT:
12211                    if (!pkgSetting.restoreComponentLPw(className, userId)) {
12212                        return;
12213                    }
12214                    break;
12215                default:
12216                    Slog.e(TAG, "Invalid new component state: " + newState);
12217                    return;
12218                }
12219            }
12220            scheduleWritePackageRestrictionsLocked(userId);
12221            components = mPendingBroadcasts.get(userId, packageName);
12222            final boolean newPackage = components == null;
12223            if (newPackage) {
12224                components = new ArrayList<String>();
12225            }
12226            if (!components.contains(componentName)) {
12227                components.add(componentName);
12228            }
12229            if ((flags&PackageManager.DONT_KILL_APP) == 0) {
12230                sendNow = true;
12231                // Purge entry from pending broadcast list if another one exists already
12232                // since we are sending one right away.
12233                mPendingBroadcasts.remove(userId, packageName);
12234            } else {
12235                if (newPackage) {
12236                    mPendingBroadcasts.put(userId, packageName, components);
12237                }
12238                if (!mHandler.hasMessages(SEND_PENDING_BROADCAST)) {
12239                    // Schedule a message
12240                    mHandler.sendEmptyMessageDelayed(SEND_PENDING_BROADCAST, BROADCAST_DELAY);
12241                }
12242            }
12243        }
12244
12245        long callingId = Binder.clearCallingIdentity();
12246        try {
12247            if (sendNow) {
12248                packageUid = UserHandle.getUid(userId, pkgSetting.appId);
12249                sendPackageChangedBroadcast(packageName,
12250                        (flags&PackageManager.DONT_KILL_APP) != 0, components, packageUid);
12251            }
12252        } finally {
12253            Binder.restoreCallingIdentity(callingId);
12254        }
12255    }
12256
12257    private void sendPackageChangedBroadcast(String packageName,
12258            boolean killFlag, ArrayList<String> componentNames, int packageUid) {
12259        if (DEBUG_INSTALL)
12260            Log.v(TAG, "Sending package changed: package=" + packageName + " components="
12261                    + componentNames);
12262        Bundle extras = new Bundle(4);
12263        extras.putString(Intent.EXTRA_CHANGED_COMPONENT_NAME, componentNames.get(0));
12264        String nameList[] = new String[componentNames.size()];
12265        componentNames.toArray(nameList);
12266        extras.putStringArray(Intent.EXTRA_CHANGED_COMPONENT_NAME_LIST, nameList);
12267        extras.putBoolean(Intent.EXTRA_DONT_KILL_APP, killFlag);
12268        extras.putInt(Intent.EXTRA_UID, packageUid);
12269        sendPackageBroadcast(Intent.ACTION_PACKAGE_CHANGED,  packageName, extras, null, null,
12270                new int[] {UserHandle.getUserId(packageUid)});
12271    }
12272
12273    @Override
12274    public void setPackageStoppedState(String packageName, boolean stopped, int userId) {
12275        if (!sUserManager.exists(userId)) return;
12276        final int uid = Binder.getCallingUid();
12277        final int permission = mContext.checkCallingOrSelfPermission(
12278                android.Manifest.permission.CHANGE_COMPONENT_ENABLED_STATE);
12279        final boolean allowedByPermission = (permission == PackageManager.PERMISSION_GRANTED);
12280        enforceCrossUserPermission(uid, userId, true, true, "stop package");
12281        // writer
12282        synchronized (mPackages) {
12283            if (mSettings.setPackageStoppedStateLPw(packageName, stopped, allowedByPermission,
12284                    uid, userId)) {
12285                scheduleWritePackageRestrictionsLocked(userId);
12286            }
12287        }
12288    }
12289
12290    @Override
12291    public String getInstallerPackageName(String packageName) {
12292        // reader
12293        synchronized (mPackages) {
12294            return mSettings.getInstallerPackageNameLPr(packageName);
12295        }
12296    }
12297
12298    @Override
12299    public int getApplicationEnabledSetting(String packageName, int userId) {
12300        if (!sUserManager.exists(userId)) return COMPONENT_ENABLED_STATE_DISABLED;
12301        int uid = Binder.getCallingUid();
12302        enforceCrossUserPermission(uid, userId, false, false, "get enabled");
12303        // reader
12304        synchronized (mPackages) {
12305            return mSettings.getApplicationEnabledSettingLPr(packageName, userId);
12306        }
12307    }
12308
12309    @Override
12310    public int getComponentEnabledSetting(ComponentName componentName, int userId) {
12311        if (!sUserManager.exists(userId)) return COMPONENT_ENABLED_STATE_DISABLED;
12312        int uid = Binder.getCallingUid();
12313        enforceCrossUserPermission(uid, userId, false, false, "get component enabled");
12314        // reader
12315        synchronized (mPackages) {
12316            return mSettings.getComponentEnabledSettingLPr(componentName, userId);
12317        }
12318    }
12319
12320    @Override
12321    public void enterSafeMode() {
12322        enforceSystemOrRoot("Only the system can request entering safe mode");
12323
12324        if (!mSystemReady) {
12325            mSafeMode = true;
12326        }
12327    }
12328
12329    @Override
12330    public void systemReady() {
12331        mSystemReady = true;
12332
12333        // Read the compatibilty setting when the system is ready.
12334        boolean compatibilityModeEnabled = android.provider.Settings.Global.getInt(
12335                mContext.getContentResolver(),
12336                android.provider.Settings.Global.COMPATIBILITY_MODE, 1) == 1;
12337        PackageParser.setCompatibilityModeEnabled(compatibilityModeEnabled);
12338        if (DEBUG_SETTINGS) {
12339            Log.d(TAG, "compatibility mode:" + compatibilityModeEnabled);
12340        }
12341
12342        synchronized (mPackages) {
12343            // Verify that all of the preferred activity components actually
12344            // exist.  It is possible for applications to be updated and at
12345            // that point remove a previously declared activity component that
12346            // had been set as a preferred activity.  We try to clean this up
12347            // the next time we encounter that preferred activity, but it is
12348            // possible for the user flow to never be able to return to that
12349            // situation so here we do a sanity check to make sure we haven't
12350            // left any junk around.
12351            ArrayList<PreferredActivity> removed = new ArrayList<PreferredActivity>();
12352            for (int i=0; i<mSettings.mPreferredActivities.size(); i++) {
12353                PreferredIntentResolver pir = mSettings.mPreferredActivities.valueAt(i);
12354                removed.clear();
12355                for (PreferredActivity pa : pir.filterSet()) {
12356                    if (mActivities.mActivities.get(pa.mPref.mComponent) == null) {
12357                        removed.add(pa);
12358                    }
12359                }
12360                if (removed.size() > 0) {
12361                    for (int r=0; r<removed.size(); r++) {
12362                        PreferredActivity pa = removed.get(r);
12363                        Slog.w(TAG, "Removing dangling preferred activity: "
12364                                + pa.mPref.mComponent);
12365                        pir.removeFilter(pa);
12366                    }
12367                    mSettings.writePackageRestrictionsLPr(
12368                            mSettings.mPreferredActivities.keyAt(i));
12369                }
12370            }
12371        }
12372        sUserManager.systemReady();
12373
12374        // Kick off any messages waiting for system ready
12375        if (mPostSystemReadyMessages != null) {
12376            for (Message msg : mPostSystemReadyMessages) {
12377                msg.sendToTarget();
12378            }
12379            mPostSystemReadyMessages = null;
12380        }
12381    }
12382
12383    @Override
12384    public boolean isSafeMode() {
12385        return mSafeMode;
12386    }
12387
12388    @Override
12389    public boolean hasSystemUidErrors() {
12390        return mHasSystemUidErrors;
12391    }
12392
12393    static String arrayToString(int[] array) {
12394        StringBuffer buf = new StringBuffer(128);
12395        buf.append('[');
12396        if (array != null) {
12397            for (int i=0; i<array.length; i++) {
12398                if (i > 0) buf.append(", ");
12399                buf.append(array[i]);
12400            }
12401        }
12402        buf.append(']');
12403        return buf.toString();
12404    }
12405
12406    static class DumpState {
12407        public static final int DUMP_LIBS = 1 << 0;
12408        public static final int DUMP_FEATURES = 1 << 1;
12409        public static final int DUMP_RESOLVERS = 1 << 2;
12410        public static final int DUMP_PERMISSIONS = 1 << 3;
12411        public static final int DUMP_PACKAGES = 1 << 4;
12412        public static final int DUMP_SHARED_USERS = 1 << 5;
12413        public static final int DUMP_MESSAGES = 1 << 6;
12414        public static final int DUMP_PROVIDERS = 1 << 7;
12415        public static final int DUMP_VERIFIERS = 1 << 8;
12416        public static final int DUMP_PREFERRED = 1 << 9;
12417        public static final int DUMP_PREFERRED_XML = 1 << 10;
12418        public static final int DUMP_KEYSETS = 1 << 11;
12419        public static final int DUMP_VERSION = 1 << 12;
12420        public static final int DUMP_INSTALLS = 1 << 13;
12421
12422        public static final int OPTION_SHOW_FILTERS = 1 << 0;
12423
12424        private int mTypes;
12425
12426        private int mOptions;
12427
12428        private boolean mTitlePrinted;
12429
12430        private SharedUserSetting mSharedUser;
12431
12432        public boolean isDumping(int type) {
12433            if (mTypes == 0 && type != DUMP_PREFERRED_XML) {
12434                return true;
12435            }
12436
12437            return (mTypes & type) != 0;
12438        }
12439
12440        public void setDump(int type) {
12441            mTypes |= type;
12442        }
12443
12444        public boolean isOptionEnabled(int option) {
12445            return (mOptions & option) != 0;
12446        }
12447
12448        public void setOptionEnabled(int option) {
12449            mOptions |= option;
12450        }
12451
12452        public boolean onTitlePrinted() {
12453            final boolean printed = mTitlePrinted;
12454            mTitlePrinted = true;
12455            return printed;
12456        }
12457
12458        public boolean getTitlePrinted() {
12459            return mTitlePrinted;
12460        }
12461
12462        public void setTitlePrinted(boolean enabled) {
12463            mTitlePrinted = enabled;
12464        }
12465
12466        public SharedUserSetting getSharedUser() {
12467            return mSharedUser;
12468        }
12469
12470        public void setSharedUser(SharedUserSetting user) {
12471            mSharedUser = user;
12472        }
12473    }
12474
12475    @Override
12476    protected void dump(FileDescriptor fd, PrintWriter pw, String[] args) {
12477        if (mContext.checkCallingOrSelfPermission(android.Manifest.permission.DUMP)
12478                != PackageManager.PERMISSION_GRANTED) {
12479            pw.println("Permission Denial: can't dump ActivityManager from from pid="
12480                    + Binder.getCallingPid()
12481                    + ", uid=" + Binder.getCallingUid()
12482                    + " without permission "
12483                    + android.Manifest.permission.DUMP);
12484            return;
12485        }
12486
12487        DumpState dumpState = new DumpState();
12488        boolean fullPreferred = false;
12489        boolean checkin = false;
12490
12491        String packageName = null;
12492
12493        int opti = 0;
12494        while (opti < args.length) {
12495            String opt = args[opti];
12496            if (opt == null || opt.length() <= 0 || opt.charAt(0) != '-') {
12497                break;
12498            }
12499            opti++;
12500
12501            if ("-a".equals(opt)) {
12502                // Right now we only know how to print all.
12503            } else if ("-h".equals(opt)) {
12504                pw.println("Package manager dump options:");
12505                pw.println("  [-h] [-f] [--checkin] [cmd] ...");
12506                pw.println("    --checkin: dump for a checkin");
12507                pw.println("    -f: print details of intent filters");
12508                pw.println("    -h: print this help");
12509                pw.println("  cmd may be one of:");
12510                pw.println("    l[ibraries]: list known shared libraries");
12511                pw.println("    f[ibraries]: list device features");
12512                pw.println("    k[eysets]: print known keysets");
12513                pw.println("    r[esolvers]: dump intent resolvers");
12514                pw.println("    perm[issions]: dump permissions");
12515                pw.println("    pref[erred]: print preferred package settings");
12516                pw.println("    preferred-xml [--full]: print preferred package settings as xml");
12517                pw.println("    prov[iders]: dump content providers");
12518                pw.println("    p[ackages]: dump installed packages");
12519                pw.println("    s[hared-users]: dump shared user IDs");
12520                pw.println("    m[essages]: print collected runtime messages");
12521                pw.println("    v[erifiers]: print package verifier info");
12522                pw.println("    version: print database version info");
12523                pw.println("    write: write current settings now");
12524                pw.println("    <package.name>: info about given package");
12525                pw.println("    installs: details about install sessions");
12526                return;
12527            } else if ("--checkin".equals(opt)) {
12528                checkin = true;
12529            } else if ("-f".equals(opt)) {
12530                dumpState.setOptionEnabled(DumpState.OPTION_SHOW_FILTERS);
12531            } else {
12532                pw.println("Unknown argument: " + opt + "; use -h for help");
12533            }
12534        }
12535
12536        // Is the caller requesting to dump a particular piece of data?
12537        if (opti < args.length) {
12538            String cmd = args[opti];
12539            opti++;
12540            // Is this a package name?
12541            if ("android".equals(cmd) || cmd.contains(".")) {
12542                packageName = cmd;
12543                // When dumping a single package, we always dump all of its
12544                // filter information since the amount of data will be reasonable.
12545                dumpState.setOptionEnabled(DumpState.OPTION_SHOW_FILTERS);
12546            } else if ("l".equals(cmd) || "libraries".equals(cmd)) {
12547                dumpState.setDump(DumpState.DUMP_LIBS);
12548            } else if ("f".equals(cmd) || "features".equals(cmd)) {
12549                dumpState.setDump(DumpState.DUMP_FEATURES);
12550            } else if ("r".equals(cmd) || "resolvers".equals(cmd)) {
12551                dumpState.setDump(DumpState.DUMP_RESOLVERS);
12552            } else if ("perm".equals(cmd) || "permissions".equals(cmd)) {
12553                dumpState.setDump(DumpState.DUMP_PERMISSIONS);
12554            } else if ("pref".equals(cmd) || "preferred".equals(cmd)) {
12555                dumpState.setDump(DumpState.DUMP_PREFERRED);
12556            } else if ("preferred-xml".equals(cmd)) {
12557                dumpState.setDump(DumpState.DUMP_PREFERRED_XML);
12558                if (opti < args.length && "--full".equals(args[opti])) {
12559                    fullPreferred = true;
12560                    opti++;
12561                }
12562            } else if ("p".equals(cmd) || "packages".equals(cmd)) {
12563                dumpState.setDump(DumpState.DUMP_PACKAGES);
12564            } else if ("s".equals(cmd) || "shared-users".equals(cmd)) {
12565                dumpState.setDump(DumpState.DUMP_SHARED_USERS);
12566            } else if ("prov".equals(cmd) || "providers".equals(cmd)) {
12567                dumpState.setDump(DumpState.DUMP_PROVIDERS);
12568            } else if ("m".equals(cmd) || "messages".equals(cmd)) {
12569                dumpState.setDump(DumpState.DUMP_MESSAGES);
12570            } else if ("v".equals(cmd) || "verifiers".equals(cmd)) {
12571                dumpState.setDump(DumpState.DUMP_VERIFIERS);
12572            } else if ("version".equals(cmd)) {
12573                dumpState.setDump(DumpState.DUMP_VERSION);
12574            } else if ("k".equals(cmd) || "keysets".equals(cmd)) {
12575                dumpState.setDump(DumpState.DUMP_KEYSETS);
12576            } else if ("installs".equals(cmd)) {
12577                dumpState.setDump(DumpState.DUMP_INSTALLS);
12578            } else if ("write".equals(cmd)) {
12579                synchronized (mPackages) {
12580                    mSettings.writeLPr();
12581                    pw.println("Settings written.");
12582                    return;
12583                }
12584            }
12585        }
12586
12587        if (checkin) {
12588            pw.println("vers,1");
12589        }
12590
12591        // reader
12592        synchronized (mPackages) {
12593            if (dumpState.isDumping(DumpState.DUMP_VERSION) && packageName == null) {
12594                if (!checkin) {
12595                    if (dumpState.onTitlePrinted())
12596                        pw.println();
12597                    pw.println("Database versions:");
12598                    pw.print("  SDK Version:");
12599                    pw.print(" internal=");
12600                    pw.print(mSettings.mInternalSdkPlatform);
12601                    pw.print(" external=");
12602                    pw.println(mSettings.mExternalSdkPlatform);
12603                    pw.print("  DB Version:");
12604                    pw.print(" internal=");
12605                    pw.print(mSettings.mInternalDatabaseVersion);
12606                    pw.print(" external=");
12607                    pw.println(mSettings.mExternalDatabaseVersion);
12608                }
12609            }
12610
12611            if (dumpState.isDumping(DumpState.DUMP_VERIFIERS) && packageName == null) {
12612                if (!checkin) {
12613                    if (dumpState.onTitlePrinted())
12614                        pw.println();
12615                    pw.println("Verifiers:");
12616                    pw.print("  Required: ");
12617                    pw.print(mRequiredVerifierPackage);
12618                    pw.print(" (uid=");
12619                    pw.print(getPackageUid(mRequiredVerifierPackage, 0));
12620                    pw.println(")");
12621                } else if (mRequiredVerifierPackage != null) {
12622                    pw.print("vrfy,"); pw.print(mRequiredVerifierPackage);
12623                    pw.print(","); pw.println(getPackageUid(mRequiredVerifierPackage, 0));
12624                }
12625            }
12626
12627            if (dumpState.isDumping(DumpState.DUMP_LIBS) && packageName == null) {
12628                boolean printedHeader = false;
12629                final Iterator<String> it = mSharedLibraries.keySet().iterator();
12630                while (it.hasNext()) {
12631                    String name = it.next();
12632                    SharedLibraryEntry ent = mSharedLibraries.get(name);
12633                    if (!checkin) {
12634                        if (!printedHeader) {
12635                            if (dumpState.onTitlePrinted())
12636                                pw.println();
12637                            pw.println("Libraries:");
12638                            printedHeader = true;
12639                        }
12640                        pw.print("  ");
12641                    } else {
12642                        pw.print("lib,");
12643                    }
12644                    pw.print(name);
12645                    if (!checkin) {
12646                        pw.print(" -> ");
12647                    }
12648                    if (ent.path != null) {
12649                        if (!checkin) {
12650                            pw.print("(jar) ");
12651                            pw.print(ent.path);
12652                        } else {
12653                            pw.print(",jar,");
12654                            pw.print(ent.path);
12655                        }
12656                    } else {
12657                        if (!checkin) {
12658                            pw.print("(apk) ");
12659                            pw.print(ent.apk);
12660                        } else {
12661                            pw.print(",apk,");
12662                            pw.print(ent.apk);
12663                        }
12664                    }
12665                    pw.println();
12666                }
12667            }
12668
12669            if (dumpState.isDumping(DumpState.DUMP_FEATURES) && packageName == null) {
12670                if (dumpState.onTitlePrinted())
12671                    pw.println();
12672                if (!checkin) {
12673                    pw.println("Features:");
12674                }
12675                Iterator<String> it = mAvailableFeatures.keySet().iterator();
12676                while (it.hasNext()) {
12677                    String name = it.next();
12678                    if (!checkin) {
12679                        pw.print("  ");
12680                    } else {
12681                        pw.print("feat,");
12682                    }
12683                    pw.println(name);
12684                }
12685            }
12686
12687            if (!checkin && dumpState.isDumping(DumpState.DUMP_RESOLVERS)) {
12688                if (mActivities.dump(pw, dumpState.getTitlePrinted() ? "\nActivity Resolver Table:"
12689                        : "Activity Resolver Table:", "  ", packageName,
12690                        dumpState.isOptionEnabled(DumpState.OPTION_SHOW_FILTERS), true)) {
12691                    dumpState.setTitlePrinted(true);
12692                }
12693                if (mReceivers.dump(pw, dumpState.getTitlePrinted() ? "\nReceiver Resolver Table:"
12694                        : "Receiver Resolver Table:", "  ", packageName,
12695                        dumpState.isOptionEnabled(DumpState.OPTION_SHOW_FILTERS), true)) {
12696                    dumpState.setTitlePrinted(true);
12697                }
12698                if (mServices.dump(pw, dumpState.getTitlePrinted() ? "\nService Resolver Table:"
12699                        : "Service Resolver Table:", "  ", packageName,
12700                        dumpState.isOptionEnabled(DumpState.OPTION_SHOW_FILTERS), true)) {
12701                    dumpState.setTitlePrinted(true);
12702                }
12703                if (mProviders.dump(pw, dumpState.getTitlePrinted() ? "\nProvider Resolver Table:"
12704                        : "Provider Resolver Table:", "  ", packageName,
12705                        dumpState.isOptionEnabled(DumpState.OPTION_SHOW_FILTERS), true)) {
12706                    dumpState.setTitlePrinted(true);
12707                }
12708            }
12709
12710            if (!checkin && dumpState.isDumping(DumpState.DUMP_PREFERRED)) {
12711                for (int i=0; i<mSettings.mPreferredActivities.size(); i++) {
12712                    PreferredIntentResolver pir = mSettings.mPreferredActivities.valueAt(i);
12713                    int user = mSettings.mPreferredActivities.keyAt(i);
12714                    if (pir.dump(pw,
12715                            dumpState.getTitlePrinted()
12716                                ? "\nPreferred Activities User " + user + ":"
12717                                : "Preferred Activities User " + user + ":", "  ",
12718                            packageName, true, false)) {
12719                        dumpState.setTitlePrinted(true);
12720                    }
12721                }
12722            }
12723
12724            if (!checkin && dumpState.isDumping(DumpState.DUMP_PREFERRED_XML)) {
12725                pw.flush();
12726                FileOutputStream fout = new FileOutputStream(fd);
12727                BufferedOutputStream str = new BufferedOutputStream(fout);
12728                XmlSerializer serializer = new FastXmlSerializer();
12729                try {
12730                    serializer.setOutput(str, "utf-8");
12731                    serializer.startDocument(null, true);
12732                    serializer.setFeature(
12733                            "http://xmlpull.org/v1/doc/features.html#indent-output", true);
12734                    mSettings.writePreferredActivitiesLPr(serializer, 0, fullPreferred);
12735                    serializer.endDocument();
12736                    serializer.flush();
12737                } catch (IllegalArgumentException e) {
12738                    pw.println("Failed writing: " + e);
12739                } catch (IllegalStateException e) {
12740                    pw.println("Failed writing: " + e);
12741                } catch (IOException e) {
12742                    pw.println("Failed writing: " + e);
12743                }
12744            }
12745
12746            if (!checkin && dumpState.isDumping(DumpState.DUMP_PERMISSIONS)) {
12747                mSettings.dumpPermissionsLPr(pw, packageName, dumpState);
12748                if (packageName == null) {
12749                    for (int iperm=0; iperm<mAppOpPermissionPackages.size(); iperm++) {
12750                        if (iperm == 0) {
12751                            if (dumpState.onTitlePrinted())
12752                                pw.println();
12753                            pw.println("AppOp Permissions:");
12754                        }
12755                        pw.print("  AppOp Permission ");
12756                        pw.print(mAppOpPermissionPackages.keyAt(iperm));
12757                        pw.println(":");
12758                        ArraySet<String> pkgs = mAppOpPermissionPackages.valueAt(iperm);
12759                        for (int ipkg=0; ipkg<pkgs.size(); ipkg++) {
12760                            pw.print("    "); pw.println(pkgs.valueAt(ipkg));
12761                        }
12762                    }
12763                }
12764            }
12765
12766            if (!checkin && dumpState.isDumping(DumpState.DUMP_PROVIDERS)) {
12767                boolean printedSomething = false;
12768                for (PackageParser.Provider p : mProviders.mProviders.values()) {
12769                    if (packageName != null && !packageName.equals(p.info.packageName)) {
12770                        continue;
12771                    }
12772                    if (!printedSomething) {
12773                        if (dumpState.onTitlePrinted())
12774                            pw.println();
12775                        pw.println("Registered ContentProviders:");
12776                        printedSomething = true;
12777                    }
12778                    pw.print("  "); p.printComponentShortName(pw); pw.println(":");
12779                    pw.print("    "); pw.println(p.toString());
12780                }
12781                printedSomething = false;
12782                for (Map.Entry<String, PackageParser.Provider> entry :
12783                        mProvidersByAuthority.entrySet()) {
12784                    PackageParser.Provider p = entry.getValue();
12785                    if (packageName != null && !packageName.equals(p.info.packageName)) {
12786                        continue;
12787                    }
12788                    if (!printedSomething) {
12789                        if (dumpState.onTitlePrinted())
12790                            pw.println();
12791                        pw.println("ContentProvider Authorities:");
12792                        printedSomething = true;
12793                    }
12794                    pw.print("  ["); pw.print(entry.getKey()); pw.println("]:");
12795                    pw.print("    "); pw.println(p.toString());
12796                    if (p.info != null && p.info.applicationInfo != null) {
12797                        final String appInfo = p.info.applicationInfo.toString();
12798                        pw.print("      applicationInfo="); pw.println(appInfo);
12799                    }
12800                }
12801            }
12802
12803            if (!checkin && dumpState.isDumping(DumpState.DUMP_KEYSETS)) {
12804                mSettings.mKeySetManagerService.dumpLPr(pw, packageName, dumpState);
12805            }
12806
12807            if (dumpState.isDumping(DumpState.DUMP_PACKAGES)) {
12808                mSettings.dumpPackagesLPr(pw, packageName, dumpState, checkin);
12809            }
12810
12811            if (dumpState.isDumping(DumpState.DUMP_SHARED_USERS)) {
12812                mSettings.dumpSharedUsersLPr(pw, packageName, dumpState, checkin);
12813            }
12814
12815            if (!checkin && dumpState.isDumping(DumpState.DUMP_INSTALLS) && packageName == null) {
12816                // XXX should handle packageName != null by dumping only install data that
12817                // the given package is involved with.
12818                if (dumpState.onTitlePrinted()) pw.println();
12819                mInstallerService.dump(new IndentingPrintWriter(pw, "  ", 120));
12820            }
12821
12822            if (!checkin && dumpState.isDumping(DumpState.DUMP_MESSAGES) && packageName == null) {
12823                if (dumpState.onTitlePrinted()) pw.println();
12824                mSettings.dumpReadMessagesLPr(pw, dumpState);
12825
12826                pw.println();
12827                pw.println("Package warning messages:");
12828                BufferedReader in = null;
12829                String line = null;
12830                try {
12831                    in = new BufferedReader(new FileReader(getSettingsProblemFile()));
12832                    while ((line = in.readLine()) != null) {
12833                        if (line.contains("ignored: updated version")) continue;
12834                        pw.println(line);
12835                    }
12836                } catch (IOException ignored) {
12837                } finally {
12838                    IoUtils.closeQuietly(in);
12839                }
12840            }
12841
12842            if (checkin && dumpState.isDumping(DumpState.DUMP_MESSAGES)) {
12843                BufferedReader in = null;
12844                String line = null;
12845                try {
12846                    in = new BufferedReader(new FileReader(getSettingsProblemFile()));
12847                    while ((line = in.readLine()) != null) {
12848                        if (line.contains("ignored: updated version")) continue;
12849                        pw.print("msg,");
12850                        pw.println(line);
12851                    }
12852                } catch (IOException ignored) {
12853                } finally {
12854                    IoUtils.closeQuietly(in);
12855                }
12856            }
12857        }
12858    }
12859
12860    // ------- apps on sdcard specific code -------
12861    static final boolean DEBUG_SD_INSTALL = false;
12862
12863    private static final String SD_ENCRYPTION_KEYSTORE_NAME = "AppsOnSD";
12864
12865    private static final String SD_ENCRYPTION_ALGORITHM = "AES";
12866
12867    private boolean mMediaMounted = false;
12868
12869    static String getEncryptKey() {
12870        try {
12871            String sdEncKey = SystemKeyStore.getInstance().retrieveKeyHexString(
12872                    SD_ENCRYPTION_KEYSTORE_NAME);
12873            if (sdEncKey == null) {
12874                sdEncKey = SystemKeyStore.getInstance().generateNewKeyHexString(128,
12875                        SD_ENCRYPTION_ALGORITHM, SD_ENCRYPTION_KEYSTORE_NAME);
12876                if (sdEncKey == null) {
12877                    Slog.e(TAG, "Failed to create encryption keys");
12878                    return null;
12879                }
12880            }
12881            return sdEncKey;
12882        } catch (NoSuchAlgorithmException nsae) {
12883            Slog.e(TAG, "Failed to create encryption keys with exception: " + nsae);
12884            return null;
12885        } catch (IOException ioe) {
12886            Slog.e(TAG, "Failed to retrieve encryption keys with exception: " + ioe);
12887            return null;
12888        }
12889    }
12890
12891    /*
12892     * Update media status on PackageManager.
12893     */
12894    @Override
12895    public void updateExternalMediaStatus(final boolean mediaStatus, final boolean reportStatus) {
12896        int callingUid = Binder.getCallingUid();
12897        if (callingUid != 0 && callingUid != Process.SYSTEM_UID) {
12898            throw new SecurityException("Media status can only be updated by the system");
12899        }
12900        // reader; this apparently protects mMediaMounted, but should probably
12901        // be a different lock in that case.
12902        synchronized (mPackages) {
12903            Log.i(TAG, "Updating external media status from "
12904                    + (mMediaMounted ? "mounted" : "unmounted") + " to "
12905                    + (mediaStatus ? "mounted" : "unmounted"));
12906            if (DEBUG_SD_INSTALL)
12907                Log.i(TAG, "updateExternalMediaStatus:: mediaStatus=" + mediaStatus
12908                        + ", mMediaMounted=" + mMediaMounted);
12909            if (mediaStatus == mMediaMounted) {
12910                final Message msg = mHandler.obtainMessage(UPDATED_MEDIA_STATUS, reportStatus ? 1
12911                        : 0, -1);
12912                mHandler.sendMessage(msg);
12913                return;
12914            }
12915            mMediaMounted = mediaStatus;
12916        }
12917        // Queue up an async operation since the package installation may take a
12918        // little while.
12919        mHandler.post(new Runnable() {
12920            public void run() {
12921                updateExternalMediaStatusInner(mediaStatus, reportStatus, true);
12922            }
12923        });
12924    }
12925
12926    /**
12927     * Called by MountService when the initial ASECs to scan are available.
12928     * Should block until all the ASEC containers are finished being scanned.
12929     */
12930    public void scanAvailableAsecs() {
12931        updateExternalMediaStatusInner(true, false, false);
12932        if (mShouldRestoreconData) {
12933            SELinuxMMAC.setRestoreconDone();
12934            mShouldRestoreconData = false;
12935        }
12936    }
12937
12938    /*
12939     * Collect information of applications on external media, map them against
12940     * existing containers and update information based on current mount status.
12941     * Please note that we always have to report status if reportStatus has been
12942     * set to true especially when unloading packages.
12943     */
12944    private void updateExternalMediaStatusInner(boolean isMounted, boolean reportStatus,
12945            boolean externalStorage) {
12946        ArrayMap<AsecInstallArgs, String> processCids = new ArrayMap<>();
12947        int[] uidArr = EmptyArray.INT;
12948
12949        final String[] list = PackageHelper.getSecureContainerList();
12950        if (ArrayUtils.isEmpty(list)) {
12951            Log.i(TAG, "No secure containers found");
12952        } else {
12953            // Process list of secure containers and categorize them
12954            // as active or stale based on their package internal state.
12955
12956            // reader
12957            synchronized (mPackages) {
12958                for (String cid : list) {
12959                    // Leave stages untouched for now; installer service owns them
12960                    if (PackageInstallerService.isStageName(cid)) continue;
12961
12962                    if (DEBUG_SD_INSTALL)
12963                        Log.i(TAG, "Processing container " + cid);
12964                    String pkgName = getAsecPackageName(cid);
12965                    if (pkgName == null) {
12966                        Slog.i(TAG, "Found stale container " + cid + " with no package name");
12967                        continue;
12968                    }
12969                    if (DEBUG_SD_INSTALL)
12970                        Log.i(TAG, "Looking for pkg : " + pkgName);
12971
12972                    final PackageSetting ps = mSettings.mPackages.get(pkgName);
12973                    if (ps == null) {
12974                        Slog.i(TAG, "Found stale container " + cid + " with no matching settings");
12975                        continue;
12976                    }
12977
12978                    /*
12979                     * Skip packages that are not external if we're unmounting
12980                     * external storage.
12981                     */
12982                    if (externalStorage && !isMounted && !isExternal(ps)) {
12983                        continue;
12984                    }
12985
12986                    final AsecInstallArgs args = new AsecInstallArgs(cid,
12987                            getAppDexInstructionSets(ps), isForwardLocked(ps));
12988                    // The package status is changed only if the code path
12989                    // matches between settings and the container id.
12990                    if (ps.codePathString != null
12991                            && ps.codePathString.startsWith(args.getCodePath())) {
12992                        if (DEBUG_SD_INSTALL) {
12993                            Log.i(TAG, "Container : " + cid + " corresponds to pkg : " + pkgName
12994                                    + " at code path: " + ps.codePathString);
12995                        }
12996
12997                        // We do have a valid package installed on sdcard
12998                        processCids.put(args, ps.codePathString);
12999                        final int uid = ps.appId;
13000                        if (uid != -1) {
13001                            uidArr = ArrayUtils.appendInt(uidArr, uid);
13002                        }
13003                    } else {
13004                        Slog.i(TAG, "Found stale container " + cid + ": expected codePath="
13005                                + ps.codePathString);
13006                    }
13007                }
13008            }
13009
13010            Arrays.sort(uidArr);
13011        }
13012
13013        // Process packages with valid entries.
13014        if (isMounted) {
13015            if (DEBUG_SD_INSTALL)
13016                Log.i(TAG, "Loading packages");
13017            loadMediaPackages(processCids, uidArr);
13018            startCleaningPackages();
13019            mInstallerService.onSecureContainersAvailable();
13020        } else {
13021            if (DEBUG_SD_INSTALL)
13022                Log.i(TAG, "Unloading packages");
13023            unloadMediaPackages(processCids, uidArr, reportStatus);
13024        }
13025    }
13026
13027    private void sendResourcesChangedBroadcast(boolean mediaStatus, boolean replacing,
13028            ArrayList<String> pkgList, int uidArr[], IIntentReceiver finishedReceiver) {
13029        int size = pkgList.size();
13030        if (size > 0) {
13031            // Send broadcasts here
13032            Bundle extras = new Bundle();
13033            extras.putStringArray(Intent.EXTRA_CHANGED_PACKAGE_LIST, pkgList
13034                    .toArray(new String[size]));
13035            if (uidArr != null) {
13036                extras.putIntArray(Intent.EXTRA_CHANGED_UID_LIST, uidArr);
13037            }
13038            if (replacing) {
13039                extras.putBoolean(Intent.EXTRA_REPLACING, replacing);
13040            }
13041            String action = mediaStatus ? Intent.ACTION_EXTERNAL_APPLICATIONS_AVAILABLE
13042                    : Intent.ACTION_EXTERNAL_APPLICATIONS_UNAVAILABLE;
13043            sendPackageBroadcast(action, null, extras, null, finishedReceiver, null);
13044        }
13045    }
13046
13047   /*
13048     * Look at potentially valid container ids from processCids If package
13049     * information doesn't match the one on record or package scanning fails,
13050     * the cid is added to list of removeCids. We currently don't delete stale
13051     * containers.
13052     */
13053    private void loadMediaPackages(ArrayMap<AsecInstallArgs, String> processCids, int[] uidArr) {
13054        ArrayList<String> pkgList = new ArrayList<String>();
13055        Set<AsecInstallArgs> keys = processCids.keySet();
13056
13057        for (AsecInstallArgs args : keys) {
13058            String codePath = processCids.get(args);
13059            if (DEBUG_SD_INSTALL)
13060                Log.i(TAG, "Loading container : " + args.cid);
13061            int retCode = PackageManager.INSTALL_FAILED_CONTAINER_ERROR;
13062            try {
13063                // Make sure there are no container errors first.
13064                if (args.doPreInstall(PackageManager.INSTALL_SUCCEEDED) != PackageManager.INSTALL_SUCCEEDED) {
13065                    Slog.e(TAG, "Failed to mount cid : " + args.cid
13066                            + " when installing from sdcard");
13067                    continue;
13068                }
13069                // Check code path here.
13070                if (codePath == null || !codePath.startsWith(args.getCodePath())) {
13071                    Slog.e(TAG, "Container " + args.cid + " cachepath " + args.getCodePath()
13072                            + " does not match one in settings " + codePath);
13073                    continue;
13074                }
13075                // Parse package
13076                int parseFlags = mDefParseFlags;
13077                if (args.isExternal()) {
13078                    parseFlags |= PackageParser.PARSE_ON_SDCARD;
13079                }
13080                if (args.isFwdLocked()) {
13081                    parseFlags |= PackageParser.PARSE_FORWARD_LOCK;
13082                }
13083
13084                synchronized (mInstallLock) {
13085                    PackageParser.Package pkg = null;
13086                    try {
13087                        pkg = scanPackageLI(new File(codePath), parseFlags, 0, 0, null);
13088                    } catch (PackageManagerException e) {
13089                        Slog.w(TAG, "Failed to scan " + codePath + ": " + e.getMessage());
13090                    }
13091                    // Scan the package
13092                    if (pkg != null) {
13093                        /*
13094                         * TODO why is the lock being held? doPostInstall is
13095                         * called in other places without the lock. This needs
13096                         * to be straightened out.
13097                         */
13098                        // writer
13099                        synchronized (mPackages) {
13100                            retCode = PackageManager.INSTALL_SUCCEEDED;
13101                            pkgList.add(pkg.packageName);
13102                            // Post process args
13103                            args.doPostInstall(PackageManager.INSTALL_SUCCEEDED,
13104                                    pkg.applicationInfo.uid);
13105                        }
13106                    } else {
13107                        Slog.i(TAG, "Failed to install pkg from  " + codePath + " from sdcard");
13108                    }
13109                }
13110
13111            } finally {
13112                if (retCode != PackageManager.INSTALL_SUCCEEDED) {
13113                    Log.w(TAG, "Container " + args.cid + " is stale, retCode=" + retCode);
13114                }
13115            }
13116        }
13117        // writer
13118        synchronized (mPackages) {
13119            // If the platform SDK has changed since the last time we booted,
13120            // we need to re-grant app permission to catch any new ones that
13121            // appear. This is really a hack, and means that apps can in some
13122            // cases get permissions that the user didn't initially explicitly
13123            // allow... it would be nice to have some better way to handle
13124            // this situation.
13125            final boolean regrantPermissions = mSettings.mExternalSdkPlatform != mSdkVersion;
13126            if (regrantPermissions)
13127                Slog.i(TAG, "Platform changed from " + mSettings.mExternalSdkPlatform + " to "
13128                        + mSdkVersion + "; regranting permissions for external storage");
13129            mSettings.mExternalSdkPlatform = mSdkVersion;
13130
13131            // Make sure group IDs have been assigned, and any permission
13132            // changes in other apps are accounted for
13133            updatePermissionsLPw(null, null, UPDATE_PERMISSIONS_ALL
13134                    | (regrantPermissions
13135                            ? (UPDATE_PERMISSIONS_REPLACE_PKG|UPDATE_PERMISSIONS_REPLACE_ALL)
13136                            : 0));
13137
13138            mSettings.updateExternalDatabaseVersion();
13139
13140            // can downgrade to reader
13141            // Persist settings
13142            mSettings.writeLPr();
13143        }
13144        // Send a broadcast to let everyone know we are done processing
13145        if (pkgList.size() > 0) {
13146            sendResourcesChangedBroadcast(true, false, pkgList, uidArr, null);
13147        }
13148    }
13149
13150   /*
13151     * Utility method to unload a list of specified containers
13152     */
13153    private void unloadAllContainers(Set<AsecInstallArgs> cidArgs) {
13154        // Just unmount all valid containers.
13155        for (AsecInstallArgs arg : cidArgs) {
13156            synchronized (mInstallLock) {
13157                arg.doPostDeleteLI(false);
13158           }
13159       }
13160   }
13161
13162    /*
13163     * Unload packages mounted on external media. This involves deleting package
13164     * data from internal structures, sending broadcasts about diabled packages,
13165     * gc'ing to free up references, unmounting all secure containers
13166     * corresponding to packages on external media, and posting a
13167     * UPDATED_MEDIA_STATUS message if status has been requested. Please note
13168     * that we always have to post this message if status has been requested no
13169     * matter what.
13170     */
13171    private void unloadMediaPackages(ArrayMap<AsecInstallArgs, String> processCids, int uidArr[],
13172            final boolean reportStatus) {
13173        if (DEBUG_SD_INSTALL)
13174            Log.i(TAG, "unloading media packages");
13175        ArrayList<String> pkgList = new ArrayList<String>();
13176        ArrayList<AsecInstallArgs> failedList = new ArrayList<AsecInstallArgs>();
13177        final Set<AsecInstallArgs> keys = processCids.keySet();
13178        for (AsecInstallArgs args : keys) {
13179            String pkgName = args.getPackageName();
13180            if (DEBUG_SD_INSTALL)
13181                Log.i(TAG, "Trying to unload pkg : " + pkgName);
13182            // Delete package internally
13183            PackageRemovedInfo outInfo = new PackageRemovedInfo();
13184            synchronized (mInstallLock) {
13185                boolean res = deletePackageLI(pkgName, null, false, null, null,
13186                        PackageManager.DELETE_KEEP_DATA, outInfo, false);
13187                if (res) {
13188                    pkgList.add(pkgName);
13189                } else {
13190                    Slog.e(TAG, "Failed to delete pkg from sdcard : " + pkgName);
13191                    failedList.add(args);
13192                }
13193            }
13194        }
13195
13196        // reader
13197        synchronized (mPackages) {
13198            // We didn't update the settings after removing each package;
13199            // write them now for all packages.
13200            mSettings.writeLPr();
13201        }
13202
13203        // We have to absolutely send UPDATED_MEDIA_STATUS only
13204        // after confirming that all the receivers processed the ordered
13205        // broadcast when packages get disabled, force a gc to clean things up.
13206        // and unload all the containers.
13207        if (pkgList.size() > 0) {
13208            sendResourcesChangedBroadcast(false, false, pkgList, uidArr,
13209                    new IIntentReceiver.Stub() {
13210                public void performReceive(Intent intent, int resultCode, String data,
13211                        Bundle extras, boolean ordered, boolean sticky,
13212                        int sendingUser) throws RemoteException {
13213                    Message msg = mHandler.obtainMessage(UPDATED_MEDIA_STATUS,
13214                            reportStatus ? 1 : 0, 1, keys);
13215                    mHandler.sendMessage(msg);
13216                }
13217            });
13218        } else {
13219            Message msg = mHandler.obtainMessage(UPDATED_MEDIA_STATUS, reportStatus ? 1 : 0, -1,
13220                    keys);
13221            mHandler.sendMessage(msg);
13222        }
13223    }
13224
13225    /** Binder call */
13226    @Override
13227    public void movePackage(final String packageName, final IPackageMoveObserver observer,
13228            final int flags) {
13229        mContext.enforceCallingOrSelfPermission(android.Manifest.permission.MOVE_PACKAGE, null);
13230        UserHandle user = new UserHandle(UserHandle.getCallingUserId());
13231        int returnCode = PackageManager.MOVE_SUCCEEDED;
13232        int currInstallFlags = 0;
13233        int newInstallFlags = 0;
13234
13235        File codeFile = null;
13236        String installerPackageName = null;
13237        String packageAbiOverride = null;
13238
13239        // reader
13240        synchronized (mPackages) {
13241            final PackageParser.Package pkg = mPackages.get(packageName);
13242            final PackageSetting ps = mSettings.mPackages.get(packageName);
13243            if (pkg == null || ps == null) {
13244                returnCode = PackageManager.MOVE_FAILED_DOESNT_EXIST;
13245            } else {
13246                // Disable moving fwd locked apps and system packages
13247                if (pkg.applicationInfo != null && isSystemApp(pkg)) {
13248                    Slog.w(TAG, "Cannot move system application");
13249                    returnCode = PackageManager.MOVE_FAILED_SYSTEM_PACKAGE;
13250                } else if (pkg.mOperationPending) {
13251                    Slog.w(TAG, "Attempt to move package which has pending operations");
13252                    returnCode = PackageManager.MOVE_FAILED_OPERATION_PENDING;
13253                } else {
13254                    // Find install location first
13255                    if ((flags & PackageManager.MOVE_EXTERNAL_MEDIA) != 0
13256                            && (flags & PackageManager.MOVE_INTERNAL) != 0) {
13257                        Slog.w(TAG, "Ambigous flags specified for move location.");
13258                        returnCode = PackageManager.MOVE_FAILED_INVALID_LOCATION;
13259                    } else {
13260                        newInstallFlags = (flags & PackageManager.MOVE_EXTERNAL_MEDIA) != 0
13261                                ? PackageManager.INSTALL_EXTERNAL : PackageManager.INSTALL_INTERNAL;
13262                        currInstallFlags = isExternal(pkg)
13263                                ? PackageManager.INSTALL_EXTERNAL : PackageManager.INSTALL_INTERNAL;
13264
13265                        if (newInstallFlags == currInstallFlags) {
13266                            Slog.w(TAG, "No move required. Trying to move to same location");
13267                            returnCode = PackageManager.MOVE_FAILED_INVALID_LOCATION;
13268                        } else {
13269                            if (isForwardLocked(pkg)) {
13270                                currInstallFlags |= PackageManager.INSTALL_FORWARD_LOCK;
13271                                newInstallFlags |= PackageManager.INSTALL_FORWARD_LOCK;
13272                            }
13273                        }
13274                    }
13275                    if (returnCode == PackageManager.MOVE_SUCCEEDED) {
13276                        pkg.mOperationPending = true;
13277                    }
13278                }
13279
13280                codeFile = new File(pkg.codePath);
13281                installerPackageName = ps.installerPackageName;
13282                packageAbiOverride = ps.cpuAbiOverrideString;
13283            }
13284        }
13285
13286        if (returnCode != PackageManager.MOVE_SUCCEEDED) {
13287            try {
13288                observer.packageMoved(packageName, returnCode);
13289            } catch (RemoteException ignored) {
13290            }
13291            return;
13292        }
13293
13294        final IPackageInstallObserver2 installObserver = new IPackageInstallObserver2.Stub() {
13295            @Override
13296            public void onUserActionRequired(Intent intent) throws RemoteException {
13297                throw new IllegalStateException();
13298            }
13299
13300            @Override
13301            public void onPackageInstalled(String basePackageName, int returnCode, String msg,
13302                    Bundle extras) throws RemoteException {
13303                Slog.d(TAG, "Install result for move: "
13304                        + PackageManager.installStatusToString(returnCode, msg));
13305
13306                // We usually have a new package now after the install, but if
13307                // we failed we need to clear the pending flag on the original
13308                // package object.
13309                synchronized (mPackages) {
13310                    final PackageParser.Package pkg = mPackages.get(packageName);
13311                    if (pkg != null) {
13312                        pkg.mOperationPending = false;
13313                    }
13314                }
13315
13316                final int status = PackageManager.installStatusToPublicStatus(returnCode);
13317                switch (status) {
13318                    case PackageInstaller.STATUS_SUCCESS:
13319                        observer.packageMoved(packageName, PackageManager.MOVE_SUCCEEDED);
13320                        break;
13321                    case PackageInstaller.STATUS_FAILURE_STORAGE:
13322                        observer.packageMoved(packageName, PackageManager.MOVE_FAILED_INSUFFICIENT_STORAGE);
13323                        break;
13324                    default:
13325                        observer.packageMoved(packageName, PackageManager.MOVE_FAILED_INTERNAL_ERROR);
13326                        break;
13327                }
13328            }
13329        };
13330
13331        // Treat a move like reinstalling an existing app, which ensures that we
13332        // process everythign uniformly, like unpacking native libraries.
13333        newInstallFlags |= PackageManager.INSTALL_REPLACE_EXISTING;
13334
13335        final Message msg = mHandler.obtainMessage(INIT_COPY);
13336        final OriginInfo origin = OriginInfo.fromExistingFile(codeFile);
13337        msg.obj = new InstallParams(origin, installObserver, newInstallFlags,
13338                installerPackageName, null, user, packageAbiOverride);
13339        mHandler.sendMessage(msg);
13340    }
13341
13342    @Override
13343    public boolean setInstallLocation(int loc) {
13344        mContext.enforceCallingOrSelfPermission(android.Manifest.permission.WRITE_SECURE_SETTINGS,
13345                null);
13346        if (getInstallLocation() == loc) {
13347            return true;
13348        }
13349        if (loc == PackageHelper.APP_INSTALL_AUTO || loc == PackageHelper.APP_INSTALL_INTERNAL
13350                || loc == PackageHelper.APP_INSTALL_EXTERNAL) {
13351            android.provider.Settings.Global.putInt(mContext.getContentResolver(),
13352                    android.provider.Settings.Global.DEFAULT_INSTALL_LOCATION, loc);
13353            return true;
13354        }
13355        return false;
13356   }
13357
13358    @Override
13359    public int getInstallLocation() {
13360        return android.provider.Settings.Global.getInt(mContext.getContentResolver(),
13361                android.provider.Settings.Global.DEFAULT_INSTALL_LOCATION,
13362                PackageHelper.APP_INSTALL_AUTO);
13363    }
13364
13365    /** Called by UserManagerService */
13366    void cleanUpUserLILPw(UserManagerService userManager, int userHandle) {
13367        mDirtyUsers.remove(userHandle);
13368        mSettings.removeUserLPw(userHandle);
13369        mPendingBroadcasts.remove(userHandle);
13370        if (mInstaller != null) {
13371            // Technically, we shouldn't be doing this with the package lock
13372            // held.  However, this is very rare, and there is already so much
13373            // other disk I/O going on, that we'll let it slide for now.
13374            mInstaller.removeUserDataDirs(userHandle);
13375        }
13376        mUserNeedsBadging.delete(userHandle);
13377        removeUnusedPackagesLILPw(userManager, userHandle);
13378    }
13379
13380    /**
13381     * We're removing userHandle and would like to remove any downloaded packages
13382     * that are no longer in use by any other user.
13383     * @param userHandle the user being removed
13384     */
13385    private void removeUnusedPackagesLILPw(UserManagerService userManager, final int userHandle) {
13386        final boolean DEBUG_CLEAN_APKS = false;
13387        int [] users = userManager.getUserIdsLPr();
13388        Iterator<PackageSetting> psit = mSettings.mPackages.values().iterator();
13389        while (psit.hasNext()) {
13390            PackageSetting ps = psit.next();
13391            if (ps.pkg == null) {
13392                continue;
13393            }
13394            final String packageName = ps.pkg.packageName;
13395            // Skip over if system app
13396            if ((ps.pkgFlags & ApplicationInfo.FLAG_SYSTEM) != 0) {
13397                continue;
13398            }
13399            if (DEBUG_CLEAN_APKS) {
13400                Slog.i(TAG, "Checking package " + packageName);
13401            }
13402            boolean keep = false;
13403            for (int i = 0; i < users.length; i++) {
13404                if (users[i] != userHandle && ps.getInstalled(users[i])) {
13405                    keep = true;
13406                    if (DEBUG_CLEAN_APKS) {
13407                        Slog.i(TAG, "  Keeping package " + packageName + " for user "
13408                                + users[i]);
13409                    }
13410                    break;
13411                }
13412            }
13413            if (!keep) {
13414                if (DEBUG_CLEAN_APKS) {
13415                    Slog.i(TAG, "  Removing package " + packageName);
13416                }
13417                mHandler.post(new Runnable() {
13418                    public void run() {
13419                        deletePackageX(packageName, userHandle, 0);
13420                    } //end run
13421                });
13422            }
13423        }
13424    }
13425
13426    /** Called by UserManagerService */
13427    void createNewUserLILPw(int userHandle, File path) {
13428        if (mInstaller != null) {
13429            mInstaller.createUserConfig(userHandle);
13430            mSettings.createNewUserLILPw(this, mInstaller, userHandle, path);
13431        }
13432    }
13433
13434    @Override
13435    public VerifierDeviceIdentity getVerifierDeviceIdentity() throws RemoteException {
13436        mContext.enforceCallingOrSelfPermission(
13437                android.Manifest.permission.PACKAGE_VERIFICATION_AGENT,
13438                "Only package verification agents can read the verifier device identity");
13439
13440        synchronized (mPackages) {
13441            return mSettings.getVerifierDeviceIdentityLPw();
13442        }
13443    }
13444
13445    @Override
13446    public void setPermissionEnforced(String permission, boolean enforced) {
13447        mContext.enforceCallingOrSelfPermission(GRANT_REVOKE_PERMISSIONS, null);
13448        if (READ_EXTERNAL_STORAGE.equals(permission)) {
13449            synchronized (mPackages) {
13450                if (mSettings.mReadExternalStorageEnforced == null
13451                        || mSettings.mReadExternalStorageEnforced != enforced) {
13452                    mSettings.mReadExternalStorageEnforced = enforced;
13453                    mSettings.writeLPr();
13454                }
13455            }
13456            // kill any non-foreground processes so we restart them and
13457            // grant/revoke the GID.
13458            final IActivityManager am = ActivityManagerNative.getDefault();
13459            if (am != null) {
13460                final long token = Binder.clearCallingIdentity();
13461                try {
13462                    am.killProcessesBelowForeground("setPermissionEnforcement");
13463                } catch (RemoteException e) {
13464                } finally {
13465                    Binder.restoreCallingIdentity(token);
13466                }
13467            }
13468        } else {
13469            throw new IllegalArgumentException("No selective enforcement for " + permission);
13470        }
13471    }
13472
13473    @Override
13474    @Deprecated
13475    public boolean isPermissionEnforced(String permission) {
13476        return true;
13477    }
13478
13479    @Override
13480    public boolean isStorageLow() {
13481        final long token = Binder.clearCallingIdentity();
13482        try {
13483            final DeviceStorageMonitorInternal
13484                    dsm = LocalServices.getService(DeviceStorageMonitorInternal.class);
13485            if (dsm != null) {
13486                return dsm.isMemoryLow();
13487            } else {
13488                return false;
13489            }
13490        } finally {
13491            Binder.restoreCallingIdentity(token);
13492        }
13493    }
13494
13495    @Override
13496    public IPackageInstaller getPackageInstaller() {
13497        return mInstallerService;
13498    }
13499
13500    private boolean userNeedsBadging(int userId) {
13501        int index = mUserNeedsBadging.indexOfKey(userId);
13502        if (index < 0) {
13503            final UserInfo userInfo;
13504            final long token = Binder.clearCallingIdentity();
13505            try {
13506                userInfo = sUserManager.getUserInfo(userId);
13507            } finally {
13508                Binder.restoreCallingIdentity(token);
13509            }
13510            final boolean b;
13511            if (userInfo != null && userInfo.isManagedProfile()) {
13512                b = true;
13513            } else {
13514                b = false;
13515            }
13516            mUserNeedsBadging.put(userId, b);
13517            return b;
13518        }
13519        return mUserNeedsBadging.valueAt(index);
13520    }
13521
13522    @Override
13523    public KeySet getKeySetByAlias(String packageName, String alias) {
13524        if (packageName == null || alias == null) {
13525            return null;
13526        }
13527        synchronized(mPackages) {
13528            final PackageParser.Package pkg = mPackages.get(packageName);
13529            if (pkg == null) {
13530                Slog.w(TAG, "KeySet requested for unknown package:" + packageName);
13531                throw new IllegalArgumentException("Unknown package: " + packageName);
13532            }
13533            KeySetManagerService ksms = mSettings.mKeySetManagerService;
13534            return new KeySet(ksms.getKeySetByAliasAndPackageNameLPr(packageName, alias));
13535        }
13536    }
13537
13538    @Override
13539    public KeySet getSigningKeySet(String packageName) {
13540        if (packageName == null) {
13541            return null;
13542        }
13543        synchronized(mPackages) {
13544            final PackageParser.Package pkg = mPackages.get(packageName);
13545            if (pkg == null) {
13546                Slog.w(TAG, "KeySet requested for unknown package:" + packageName);
13547                throw new IllegalArgumentException("Unknown package: " + packageName);
13548            }
13549            if (pkg.applicationInfo.uid != Binder.getCallingUid()
13550                    && Process.SYSTEM_UID != Binder.getCallingUid()) {
13551                throw new SecurityException("May not access signing KeySet of other apps.");
13552            }
13553            KeySetManagerService ksms = mSettings.mKeySetManagerService;
13554            return new KeySet(ksms.getSigningKeySetByPackageNameLPr(packageName));
13555        }
13556    }
13557
13558    @Override
13559    public boolean isPackageSignedByKeySet(String packageName, KeySet ks) {
13560        if (packageName == null || ks == null) {
13561            return false;
13562        }
13563        synchronized(mPackages) {
13564            final PackageParser.Package pkg = mPackages.get(packageName);
13565            if (pkg == null) {
13566                Slog.w(TAG, "KeySet requested for unknown package:" + packageName);
13567                throw new IllegalArgumentException("Unknown package: " + packageName);
13568            }
13569            IBinder ksh = ks.getToken();
13570            if (ksh instanceof KeySetHandle) {
13571                KeySetManagerService ksms = mSettings.mKeySetManagerService;
13572                return ksms.packageIsSignedByLPr(packageName, (KeySetHandle) ksh);
13573            }
13574            return false;
13575        }
13576    }
13577
13578    @Override
13579    public boolean isPackageSignedByKeySetExactly(String packageName, KeySet ks) {
13580        if (packageName == null || ks == null) {
13581            return false;
13582        }
13583        synchronized(mPackages) {
13584            final PackageParser.Package pkg = mPackages.get(packageName);
13585            if (pkg == null) {
13586                Slog.w(TAG, "KeySet requested for unknown package:" + packageName);
13587                throw new IllegalArgumentException("Unknown package: " + packageName);
13588            }
13589            IBinder ksh = ks.getToken();
13590            if (ksh instanceof KeySetHandle) {
13591                KeySetManagerService ksms = mSettings.mKeySetManagerService;
13592                return ksms.packageIsSignedByExactlyLPr(packageName, (KeySetHandle) ksh);
13593            }
13594            return false;
13595        }
13596    }
13597
13598    public void getUsageStatsIfNoPackageUsageInfo() {
13599        if (!mPackageUsage.isHistoricalPackageUsageAvailable()) {
13600            UsageStatsManager usm = (UsageStatsManager) mContext.getSystemService(Context.USAGE_STATS_SERVICE);
13601            if (usm == null) {
13602                throw new IllegalStateException("UsageStatsManager must be initialized");
13603            }
13604            long now = System.currentTimeMillis();
13605            Map<String, UsageStats> stats = usm.queryAndAggregateUsageStats(now - mDexOptLRUThresholdInMills, now);
13606            for (Map.Entry<String, UsageStats> entry : stats.entrySet()) {
13607                String packageName = entry.getKey();
13608                PackageParser.Package pkg = mPackages.get(packageName);
13609                if (pkg == null) {
13610                    continue;
13611                }
13612                UsageStats usage = entry.getValue();
13613                pkg.mLastPackageUsageTimeInMills = usage.getLastTimeUsed();
13614                mPackageUsage.mIsHistoricalPackageUsageAvailable = true;
13615            }
13616        }
13617    }
13618
13619    /**
13620     * Check and throw if the given before/after packages would be considered a
13621     * downgrade.
13622     */
13623    private static void checkDowngrade(PackageParser.Package before, PackageInfoLite after)
13624            throws PackageManagerException {
13625        if (after.versionCode < before.mVersionCode) {
13626            throw new PackageManagerException(INSTALL_FAILED_VERSION_DOWNGRADE,
13627                    "Update version code " + after.versionCode + " is older than current "
13628                    + before.mVersionCode);
13629        } else if (after.versionCode == before.mVersionCode) {
13630            if (after.baseRevisionCode < before.baseRevisionCode) {
13631                throw new PackageManagerException(INSTALL_FAILED_VERSION_DOWNGRADE,
13632                        "Update base revision code " + after.baseRevisionCode
13633                        + " is older than current " + before.baseRevisionCode);
13634            }
13635
13636            if (!ArrayUtils.isEmpty(after.splitNames)) {
13637                for (int i = 0; i < after.splitNames.length; i++) {
13638                    final String splitName = after.splitNames[i];
13639                    final int j = ArrayUtils.indexOf(before.splitNames, splitName);
13640                    if (j != -1) {
13641                        if (after.splitRevisionCodes[i] < before.splitRevisionCodes[j]) {
13642                            throw new PackageManagerException(INSTALL_FAILED_VERSION_DOWNGRADE,
13643                                    "Update split " + splitName + " revision code "
13644                                    + after.splitRevisionCodes[i] + " is older than current "
13645                                    + before.splitRevisionCodes[j]);
13646                        }
13647                    }
13648                }
13649            }
13650        }
13651    }
13652}
13653