PackageManagerService.java revision 77e46d214db035f150e8522fad03edec913939e8 
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;
58import static com.android.server.pm.InstructionSets.getAppDexInstructionSets;
59import static com.android.server.pm.InstructionSets.getDexCodeInstructionSet;
60import static com.android.server.pm.InstructionSets.getDexCodeInstructionSets;
61import static com.android.server.pm.InstructionSets.getPreferredInstructionSet;
62import static com.android.server.pm.InstructionSets.getPrimaryInstructionSet;
63
64import android.util.ArrayMap;
65
66import com.android.internal.R;
67import com.android.internal.app.IMediaContainerService;
68import com.android.internal.app.ResolverActivity;
69import com.android.internal.content.NativeLibraryHelper;
70import com.android.internal.content.PackageHelper;
71import com.android.internal.os.IParcelFileDescriptorFactory;
72import com.android.internal.util.ArrayUtils;
73import com.android.internal.util.FastPrintWriter;
74import com.android.internal.util.FastXmlSerializer;
75import com.android.internal.util.IndentingPrintWriter;
76import com.android.server.EventLogTags;
77import com.android.server.IntentResolver;
78import com.android.server.LocalServices;
79import com.android.server.ServiceThread;
80import com.android.server.SystemConfig;
81import com.android.server.Watchdog;
82import com.android.server.pm.Settings.DatabaseVersion;
83import com.android.server.storage.DeviceStorageMonitorInternal;
84
85import org.xmlpull.v1.XmlSerializer;
86
87import android.app.ActivityManager;
88import android.app.ActivityManagerNative;
89import android.app.AppGlobals;
90import android.app.IActivityManager;
91import android.app.admin.IDevicePolicyManager;
92import android.app.backup.IBackupManager;
93import android.app.usage.UsageStats;
94import android.app.usage.UsageStatsManager;
95import android.content.BroadcastReceiver;
96import android.content.ComponentName;
97import android.content.Context;
98import android.content.IIntentReceiver;
99import android.content.Intent;
100import android.content.IntentFilter;
101import android.content.IntentSender;
102import android.content.IntentSender.SendIntentException;
103import android.content.ServiceConnection;
104import android.content.pm.ActivityInfo;
105import android.content.pm.ApplicationInfo;
106import android.content.pm.FeatureInfo;
107import android.content.pm.IPackageDataObserver;
108import android.content.pm.IPackageDeleteObserver;
109import android.content.pm.IPackageDeleteObserver2;
110import android.content.pm.IPackageInstallObserver2;
111import android.content.pm.IPackageInstaller;
112import android.content.pm.IPackageManager;
113import android.content.pm.IPackageMoveObserver;
114import android.content.pm.IPackageStatsObserver;
115import android.content.pm.InstrumentationInfo;
116import android.content.pm.KeySet;
117import android.content.pm.ManifestDigest;
118import android.content.pm.PackageCleanItem;
119import android.content.pm.PackageInfo;
120import android.content.pm.PackageInfoLite;
121import android.content.pm.PackageInstaller;
122import android.content.pm.PackageManager;
123import android.content.pm.PackageManager.LegacyPackageDeleteObserver;
124import android.content.pm.PackageParser.ActivityIntentInfo;
125import android.content.pm.PackageParser.PackageLite;
126import android.content.pm.PackageParser.PackageParserException;
127import android.content.pm.PackageParser;
128import android.content.pm.PackageStats;
129import android.content.pm.PackageUserState;
130import android.content.pm.ParceledListSlice;
131import android.content.pm.PermissionGroupInfo;
132import android.content.pm.PermissionInfo;
133import android.content.pm.ProviderInfo;
134import android.content.pm.ResolveInfo;
135import android.content.pm.ServiceInfo;
136import android.content.pm.Signature;
137import android.content.pm.UserInfo;
138import android.content.pm.VerificationParams;
139import android.content.pm.VerifierDeviceIdentity;
140import android.content.pm.VerifierInfo;
141import android.content.res.Resources;
142import android.hardware.display.DisplayManager;
143import android.net.Uri;
144import android.os.Binder;
145import android.os.Build;
146import android.os.Bundle;
147import android.os.Environment;
148import android.os.Environment.UserEnvironment;
149import android.os.storage.IMountService;
150import android.os.storage.StorageManager;
151import android.os.Debug;
152import android.os.FileUtils;
153import android.os.Handler;
154import android.os.IBinder;
155import android.os.Looper;
156import android.os.Message;
157import android.os.Parcel;
158import android.os.ParcelFileDescriptor;
159import android.os.Process;
160import android.os.RemoteException;
161import android.os.SELinux;
162import android.os.ServiceManager;
163import android.os.SystemClock;
164import android.os.SystemProperties;
165import android.os.UserHandle;
166import android.os.UserManager;
167import android.security.KeyStore;
168import android.security.SystemKeyStore;
169import android.system.ErrnoException;
170import android.system.Os;
171import android.system.StructStat;
172import android.text.TextUtils;
173import android.text.format.DateUtils;
174import android.util.ArraySet;
175import android.util.AtomicFile;
176import android.util.DisplayMetrics;
177import android.util.EventLog;
178import android.util.ExceptionUtils;
179import android.util.Log;
180import android.util.LogPrinter;
181import android.util.PrintStreamPrinter;
182import android.util.Slog;
183import android.util.SparseArray;
184import android.util.SparseBooleanArray;
185import android.view.Display;
186
187import java.io.BufferedInputStream;
188import java.io.BufferedOutputStream;
189import java.io.BufferedReader;
190import java.io.File;
191import java.io.FileDescriptor;
192import java.io.FileNotFoundException;
193import java.io.FileOutputStream;
194import java.io.FileReader;
195import java.io.FilenameFilter;
196import java.io.IOException;
197import java.io.InputStream;
198import java.io.PrintWriter;
199import java.nio.charset.StandardCharsets;
200import java.security.NoSuchAlgorithmException;
201import java.security.PublicKey;
202import java.security.cert.CertificateEncodingException;
203import java.security.cert.CertificateException;
204import java.text.SimpleDateFormat;
205import java.util.ArrayList;
206import java.util.Arrays;
207import java.util.Collection;
208import java.util.Collections;
209import java.util.Comparator;
210import java.util.Date;
211import java.util.Iterator;
212import java.util.List;
213import java.util.Map;
214import java.util.Objects;
215import java.util.Set;
216import java.util.concurrent.atomic.AtomicBoolean;
217import java.util.concurrent.atomic.AtomicLong;
218
219import dalvik.system.DexFile;
220import dalvik.system.VMRuntime;
221
222import libcore.io.IoUtils;
223import libcore.util.EmptyArray;
224
225/**
226 * Keep track of all those .apks everywhere.
227 *
228 * This is very central to the platform's security; please run the unit
229 * tests whenever making modifications here:
230 *
231mmm frameworks/base/tests/AndroidTests
232adb install -r -f out/target/product/passion/data/app/AndroidTests.apk
233adb shell am instrument -w -e class com.android.unit_tests.PackageManagerTests com.android.unit_tests/android.test.InstrumentationTestRunner
234 *
235 * {@hide}
236 */
237public class PackageManagerService extends IPackageManager.Stub {
238    static final String TAG = "PackageManager";
239    static final boolean DEBUG_SETTINGS = false;
240    static final boolean DEBUG_PREFERRED = false;
241    static final boolean DEBUG_UPGRADE = false;
242    private static final boolean DEBUG_INSTALL = false;
243    private static final boolean DEBUG_REMOVE = false;
244    private static final boolean DEBUG_BROADCASTS = false;
245    private static final boolean DEBUG_SHOW_INFO = false;
246    private static final boolean DEBUG_PACKAGE_INFO = false;
247    private static final boolean DEBUG_INTENT_MATCHING = false;
248    private static final boolean DEBUG_PACKAGE_SCANNING = false;
249    private static final boolean DEBUG_VERIFY = false;
250    private static final boolean DEBUG_DEXOPT = false;
251    private static final boolean DEBUG_ABI_SELECTION = false;
252
253    private static final int RADIO_UID = Process.PHONE_UID;
254    private static final int LOG_UID = Process.LOG_UID;
255    private static final int NFC_UID = Process.NFC_UID;
256    private static final int BLUETOOTH_UID = Process.BLUETOOTH_UID;
257    private static final int SHELL_UID = Process.SHELL_UID;
258
259    // Cap the size of permission trees that 3rd party apps can define
260    private static final int MAX_PERMISSION_TREE_FOOTPRINT = 32768;     // characters of text
261
262    // Suffix used during package installation when copying/moving
263    // package apks to install directory.
264    private static final String INSTALL_PACKAGE_SUFFIX = "-";
265
266    static final int SCAN_NO_DEX = 1<<1;
267    static final int SCAN_FORCE_DEX = 1<<2;
268    static final int SCAN_UPDATE_SIGNATURE = 1<<3;
269    static final int SCAN_NEW_INSTALL = 1<<4;
270    static final int SCAN_NO_PATHS = 1<<5;
271    static final int SCAN_UPDATE_TIME = 1<<6;
272    static final int SCAN_DEFER_DEX = 1<<7;
273    static final int SCAN_BOOTING = 1<<8;
274    static final int SCAN_TRUSTED_OVERLAY = 1<<9;
275    static final int SCAN_DELETE_DATA_ON_FAILURES = 1<<10;
276    static final int SCAN_REPLACING = 1<<11;
277    static final int SCAN_REQUIRE_KNOWN = 1<<12;
278
279    static final int REMOVE_CHATTY = 1<<16;
280
281    /**
282     * Timeout (in milliseconds) after which the watchdog should declare that
283     * our handler thread is wedged.  The usual default for such things is one
284     * minute but we sometimes do very lengthy I/O operations on this thread,
285     * such as installing multi-gigabyte applications, so ours needs to be longer.
286     */
287    private static final long WATCHDOG_TIMEOUT = 1000*60*10;     // ten minutes
288
289    /**
290     * Wall-clock timeout (in milliseconds) after which we *require* that an fstrim
291     * be run on this device.  We use the value in the Settings.Global.MANDATORY_FSTRIM_INTERVAL
292     * settings entry if available, otherwise we use the hardcoded default.  If it's been
293     * more than this long since the last fstrim, we force one during the boot sequence.
294     *
295     * This backstops other fstrim scheduling:  if the device is alive at midnight+idle,
296     * one gets run at the next available charging+idle time.  This final mandatory
297     * no-fstrim check kicks in only of the other scheduling criteria is never met.
298     */
299    private static final long DEFAULT_MANDATORY_FSTRIM_INTERVAL = 3 * DateUtils.DAY_IN_MILLIS;
300
301    /**
302     * Whether verification is enabled by default.
303     */
304    private static final boolean DEFAULT_VERIFY_ENABLE = true;
305
306    /**
307     * The default maximum time to wait for the verification agent to return in
308     * milliseconds.
309     */
310    private static final long DEFAULT_VERIFICATION_TIMEOUT = 10 * 1000;
311
312    /**
313     * The default response for package verification timeout.
314     *
315     * This can be either PackageManager.VERIFICATION_ALLOW or
316     * PackageManager.VERIFICATION_REJECT.
317     */
318    private static final int DEFAULT_VERIFICATION_RESPONSE = PackageManager.VERIFICATION_ALLOW;
319
320    static final String DEFAULT_CONTAINER_PACKAGE = "com.android.defcontainer";
321
322    static final ComponentName DEFAULT_CONTAINER_COMPONENT = new ComponentName(
323            DEFAULT_CONTAINER_PACKAGE,
324            "com.android.defcontainer.DefaultContainerService");
325
326    private static final String PACKAGE_MIME_TYPE = "application/vnd.android.package-archive";
327
328    private static final String VENDOR_OVERLAY_DIR = "/vendor/overlay";
329
330    final ServiceThread mHandlerThread;
331
332    final PackageHandler mHandler;
333
334    /**
335     * Messages for {@link #mHandler} that need to wait for system ready before
336     * being dispatched.
337     */
338    private ArrayList<Message> mPostSystemReadyMessages;
339
340    final int mSdkVersion = Build.VERSION.SDK_INT;
341
342    final Context mContext;
343    final boolean mFactoryTest;
344    final boolean mOnlyCore;
345    final boolean mLazyDexOpt;
346    final long mDexOptLRUThresholdInMills;
347    final DisplayMetrics mMetrics;
348    final int mDefParseFlags;
349    final String[] mSeparateProcesses;
350    final boolean mIsUpgrade;
351
352    // This is where all application persistent data goes.
353    final File mAppDataDir;
354
355    // This is where all application persistent data goes for secondary users.
356    final File mUserAppDataDir;
357
358    /** The location for ASEC container files on internal storage. */
359    final String mAsecInternalPath;
360
361    // Used for privilege escalation. MUST NOT BE CALLED WITH mPackages
362    // LOCK HELD.  Can be called with mInstallLock held.
363    final Installer mInstaller;
364
365    /** Directory where installed third-party apps stored */
366    final File mAppInstallDir;
367
368    /**
369     * Directory to which applications installed internally have their
370     * 32 bit native libraries copied.
371     */
372    private File mAppLib32InstallDir;
373
374    // Directory containing the private parts (e.g. code and non-resource assets) of forward-locked
375    // apps.
376    final File mDrmAppPrivateInstallDir;
377
378    // ----------------------------------------------------------------
379
380    // Lock for state used when installing and doing other long running
381    // operations.  Methods that must be called with this lock held have
382    // the suffix "LI".
383    final Object mInstallLock = new Object();
384
385    // ----------------------------------------------------------------
386
387    // Keys are String (package name), values are Package.  This also serves
388    // as the lock for the global state.  Methods that must be called with
389    // this lock held have the prefix "LP".
390    final ArrayMap<String, PackageParser.Package> mPackages =
391            new ArrayMap<String, PackageParser.Package>();
392
393    // Tracks available target package names -> overlay package paths.
394    final ArrayMap<String, ArrayMap<String, PackageParser.Package>> mOverlays =
395        new ArrayMap<String, ArrayMap<String, PackageParser.Package>>();
396
397    final Settings mSettings;
398    boolean mRestoredSettings;
399
400    // System configuration read by SystemConfig.
401    final int[] mGlobalGids;
402    final SparseArray<ArraySet<String>> mSystemPermissions;
403    final ArrayMap<String, FeatureInfo> mAvailableFeatures;
404
405    // If mac_permissions.xml was found for seinfo labeling.
406    boolean mFoundPolicyFile;
407
408    // If a recursive restorecon of /data/data/<pkg> is needed.
409    private boolean mShouldRestoreconData = SELinuxMMAC.shouldRestorecon();
410
411    public static final class SharedLibraryEntry {
412        public final String path;
413        public final String apk;
414
415        SharedLibraryEntry(String _path, String _apk) {
416            path = _path;
417            apk = _apk;
418        }
419    }
420
421    // Currently known shared libraries.
422    final ArrayMap<String, SharedLibraryEntry> mSharedLibraries =
423            new ArrayMap<String, SharedLibraryEntry>();
424
425    // All available activities, for your resolving pleasure.
426    final ActivityIntentResolver mActivities =
427            new ActivityIntentResolver();
428
429    // All available receivers, for your resolving pleasure.
430    final ActivityIntentResolver mReceivers =
431            new ActivityIntentResolver();
432
433    // All available services, for your resolving pleasure.
434    final ServiceIntentResolver mServices = new ServiceIntentResolver();
435
436    // All available providers, for your resolving pleasure.
437    final ProviderIntentResolver mProviders = new ProviderIntentResolver();
438
439    // Mapping from provider base names (first directory in content URI codePath)
440    // to the provider information.
441    final ArrayMap<String, PackageParser.Provider> mProvidersByAuthority =
442            new ArrayMap<String, PackageParser.Provider>();
443
444    // Mapping from instrumentation class names to info about them.
445    final ArrayMap<ComponentName, PackageParser.Instrumentation> mInstrumentation =
446            new ArrayMap<ComponentName, PackageParser.Instrumentation>();
447
448    // Mapping from permission names to info about them.
449    final ArrayMap<String, PackageParser.PermissionGroup> mPermissionGroups =
450            new ArrayMap<String, PackageParser.PermissionGroup>();
451
452    // Packages whose data we have transfered into another package, thus
453    // should no longer exist.
454    final ArraySet<String> mTransferedPackages = new ArraySet<String>();
455
456    // Broadcast actions that are only available to the system.
457    final ArraySet<String> mProtectedBroadcasts = new ArraySet<String>();
458
459    /** List of packages waiting for verification. */
460    final SparseArray<PackageVerificationState> mPendingVerification
461            = new SparseArray<PackageVerificationState>();
462
463    /** Set of packages associated with each app op permission. */
464    final ArrayMap<String, ArraySet<String>> mAppOpPermissionPackages = new ArrayMap<>();
465
466    final PackageInstallerService mInstallerService;
467
468    private final PackageDexOptimizer mPackageDexOptimizer;
469    // Cache of users who need badging.
470    SparseBooleanArray mUserNeedsBadging = new SparseBooleanArray();
471
472    /** Token for keys in mPendingVerification. */
473    private int mPendingVerificationToken = 0;
474
475    volatile boolean mSystemReady;
476    volatile boolean mSafeMode;
477    volatile boolean mHasSystemUidErrors;
478
479    ApplicationInfo mAndroidApplication;
480    final ActivityInfo mResolveActivity = new ActivityInfo();
481    final ResolveInfo mResolveInfo = new ResolveInfo();
482    ComponentName mResolveComponentName;
483    PackageParser.Package mPlatformPackage;
484    ComponentName mCustomResolverComponentName;
485
486    boolean mResolverReplaced = false;
487
488    // Set of pending broadcasts for aggregating enable/disable of components.
489    static class PendingPackageBroadcasts {
490        // for each user id, a map of <package name -> components within that package>
491        final SparseArray<ArrayMap<String, ArrayList<String>>> mUidMap;
492
493        public PendingPackageBroadcasts() {
494            mUidMap = new SparseArray<ArrayMap<String, ArrayList<String>>>(2);
495        }
496
497        public ArrayList<String> get(int userId, String packageName) {
498            ArrayMap<String, ArrayList<String>> packages = getOrAllocate(userId);
499            return packages.get(packageName);
500        }
501
502        public void put(int userId, String packageName, ArrayList<String> components) {
503            ArrayMap<String, ArrayList<String>> packages = getOrAllocate(userId);
504            packages.put(packageName, components);
505        }
506
507        public void remove(int userId, String packageName) {
508            ArrayMap<String, ArrayList<String>> packages = mUidMap.get(userId);
509            if (packages != null) {
510                packages.remove(packageName);
511            }
512        }
513
514        public void remove(int userId) {
515            mUidMap.remove(userId);
516        }
517
518        public int userIdCount() {
519            return mUidMap.size();
520        }
521
522        public int userIdAt(int n) {
523            return mUidMap.keyAt(n);
524        }
525
526        public ArrayMap<String, ArrayList<String>> packagesForUserId(int userId) {
527            return mUidMap.get(userId);
528        }
529
530        public int size() {
531            // total number of pending broadcast entries across all userIds
532            int num = 0;
533            for (int i = 0; i< mUidMap.size(); i++) {
534                num += mUidMap.valueAt(i).size();
535            }
536            return num;
537        }
538
539        public void clear() {
540            mUidMap.clear();
541        }
542
543        private ArrayMap<String, ArrayList<String>> getOrAllocate(int userId) {
544            ArrayMap<String, ArrayList<String>> map = mUidMap.get(userId);
545            if (map == null) {
546                map = new ArrayMap<String, ArrayList<String>>();
547                mUidMap.put(userId, map);
548            }
549            return map;
550        }
551    }
552    final PendingPackageBroadcasts mPendingBroadcasts = new PendingPackageBroadcasts();
553
554    // Service Connection to remote media container service to copy
555    // package uri's from external media onto secure containers
556    // or internal storage.
557    private IMediaContainerService mContainerService = null;
558
559    static final int SEND_PENDING_BROADCAST = 1;
560    static final int MCS_BOUND = 3;
561    static final int END_COPY = 4;
562    static final int INIT_COPY = 5;
563    static final int MCS_UNBIND = 6;
564    static final int START_CLEANING_PACKAGE = 7;
565    static final int FIND_INSTALL_LOC = 8;
566    static final int POST_INSTALL = 9;
567    static final int MCS_RECONNECT = 10;
568    static final int MCS_GIVE_UP = 11;
569    static final int UPDATED_MEDIA_STATUS = 12;
570    static final int WRITE_SETTINGS = 13;
571    static final int WRITE_PACKAGE_RESTRICTIONS = 14;
572    static final int PACKAGE_VERIFIED = 15;
573    static final int CHECK_PENDING_VERIFICATION = 16;
574
575    static final int WRITE_SETTINGS_DELAY = 10*1000;  // 10 seconds
576
577    // Delay time in millisecs
578    static final int BROADCAST_DELAY = 10 * 1000;
579
580    static UserManagerService sUserManager;
581
582    // Stores a list of users whose package restrictions file needs to be updated
583    private ArraySet<Integer> mDirtyUsers = new ArraySet<Integer>();
584
585    final private DefaultContainerConnection mDefContainerConn =
586            new DefaultContainerConnection();
587    class DefaultContainerConnection implements ServiceConnection {
588        public void onServiceConnected(ComponentName name, IBinder service) {
589            if (DEBUG_SD_INSTALL) Log.i(TAG, "onServiceConnected");
590            IMediaContainerService imcs =
591                IMediaContainerService.Stub.asInterface(service);
592            mHandler.sendMessage(mHandler.obtainMessage(MCS_BOUND, imcs));
593        }
594
595        public void onServiceDisconnected(ComponentName name) {
596            if (DEBUG_SD_INSTALL) Log.i(TAG, "onServiceDisconnected");
597        }
598    };
599
600    // Recordkeeping of restore-after-install operations that are currently in flight
601    // between the Package Manager and the Backup Manager
602    class PostInstallData {
603        public InstallArgs args;
604        public PackageInstalledInfo res;
605
606        PostInstallData(InstallArgs _a, PackageInstalledInfo _r) {
607            args = _a;
608            res = _r;
609        }
610    };
611    final SparseArray<PostInstallData> mRunningInstalls = new SparseArray<PostInstallData>();
612    int mNextInstallToken = 1;  // nonzero; will be wrapped back to 1 when ++ overflows
613
614    private final String mRequiredVerifierPackage;
615
616    private final PackageUsage mPackageUsage = new PackageUsage();
617
618    private class PackageUsage {
619        private static final int WRITE_INTERVAL
620            = (DEBUG_DEXOPT) ? 0 : 30*60*1000; // 30m in ms
621
622        private final Object mFileLock = new Object();
623        private final AtomicLong mLastWritten = new AtomicLong(0);
624        private final AtomicBoolean mBackgroundWriteRunning = new AtomicBoolean(false);
625
626        private boolean mIsHistoricalPackageUsageAvailable = true;
627
628        boolean isHistoricalPackageUsageAvailable() {
629            return mIsHistoricalPackageUsageAvailable;
630        }
631
632        void write(boolean force) {
633            if (force) {
634                writeInternal();
635                return;
636            }
637            if (SystemClock.elapsedRealtime() - mLastWritten.get() < WRITE_INTERVAL
638                && !DEBUG_DEXOPT) {
639                return;
640            }
641            if (mBackgroundWriteRunning.compareAndSet(false, true)) {
642                new Thread("PackageUsage_DiskWriter") {
643                    @Override
644                    public void run() {
645                        try {
646                            writeInternal();
647                        } finally {
648                            mBackgroundWriteRunning.set(false);
649                        }
650                    }
651                }.start();
652            }
653        }
654
655        private void writeInternal() {
656            synchronized (mPackages) {
657                synchronized (mFileLock) {
658                    AtomicFile file = getFile();
659                    FileOutputStream f = null;
660                    try {
661                        f = file.startWrite();
662                        BufferedOutputStream out = new BufferedOutputStream(f);
663                        FileUtils.setPermissions(file.getBaseFile().getPath(), 0640, SYSTEM_UID, PACKAGE_INFO_GID);
664                        StringBuilder sb = new StringBuilder();
665                        for (PackageParser.Package pkg : mPackages.values()) {
666                            if (pkg.mLastPackageUsageTimeInMills == 0) {
667                                continue;
668                            }
669                            sb.setLength(0);
670                            sb.append(pkg.packageName);
671                            sb.append(' ');
672                            sb.append((long)pkg.mLastPackageUsageTimeInMills);
673                            sb.append('\n');
674                            out.write(sb.toString().getBytes(StandardCharsets.US_ASCII));
675                        }
676                        out.flush();
677                        file.finishWrite(f);
678                    } catch (IOException e) {
679                        if (f != null) {
680                            file.failWrite(f);
681                        }
682                        Log.e(TAG, "Failed to write package usage times", e);
683                    }
684                }
685            }
686            mLastWritten.set(SystemClock.elapsedRealtime());
687        }
688
689        void readLP() {
690            synchronized (mFileLock) {
691                AtomicFile file = getFile();
692                BufferedInputStream in = null;
693                try {
694                    in = new BufferedInputStream(file.openRead());
695                    StringBuffer sb = new StringBuffer();
696                    while (true) {
697                        String packageName = readToken(in, sb, ' ');
698                        if (packageName == null) {
699                            break;
700                        }
701                        String timeInMillisString = readToken(in, sb, '\n');
702                        if (timeInMillisString == null) {
703                            throw new IOException("Failed to find last usage time for package "
704                                                  + packageName);
705                        }
706                        PackageParser.Package pkg = mPackages.get(packageName);
707                        if (pkg == null) {
708                            continue;
709                        }
710                        long timeInMillis;
711                        try {
712                            timeInMillis = Long.parseLong(timeInMillisString.toString());
713                        } catch (NumberFormatException e) {
714                            throw new IOException("Failed to parse " + timeInMillisString
715                                                  + " as a long.", e);
716                        }
717                        pkg.mLastPackageUsageTimeInMills = timeInMillis;
718                    }
719                } catch (FileNotFoundException expected) {
720                    mIsHistoricalPackageUsageAvailable = false;
721                } catch (IOException e) {
722                    Log.w(TAG, "Failed to read package usage times", e);
723                } finally {
724                    IoUtils.closeQuietly(in);
725                }
726            }
727            mLastWritten.set(SystemClock.elapsedRealtime());
728        }
729
730        private String readToken(InputStream in, StringBuffer sb, char endOfToken)
731                throws IOException {
732            sb.setLength(0);
733            while (true) {
734                int ch = in.read();
735                if (ch == -1) {
736                    if (sb.length() == 0) {
737                        return null;
738                    }
739                    throw new IOException("Unexpected EOF");
740                }
741                if (ch == endOfToken) {
742                    return sb.toString();
743                }
744                sb.append((char)ch);
745            }
746        }
747
748        private AtomicFile getFile() {
749            File dataDir = Environment.getDataDirectory();
750            File systemDir = new File(dataDir, "system");
751            File fname = new File(systemDir, "package-usage.list");
752            return new AtomicFile(fname);
753        }
754    }
755
756    class PackageHandler extends Handler {
757        private boolean mBound = false;
758        final ArrayList<HandlerParams> mPendingInstalls =
759            new ArrayList<HandlerParams>();
760
761        private boolean connectToService() {
762            if (DEBUG_SD_INSTALL) Log.i(TAG, "Trying to bind to" +
763                    " DefaultContainerService");
764            Intent service = new Intent().setComponent(DEFAULT_CONTAINER_COMPONENT);
765            Process.setThreadPriority(Process.THREAD_PRIORITY_DEFAULT);
766            if (mContext.bindServiceAsUser(service, mDefContainerConn,
767                    Context.BIND_AUTO_CREATE, UserHandle.OWNER)) {
768                Process.setThreadPriority(Process.THREAD_PRIORITY_BACKGROUND);
769                mBound = true;
770                return true;
771            }
772            Process.setThreadPriority(Process.THREAD_PRIORITY_BACKGROUND);
773            return false;
774        }
775
776        private void disconnectService() {
777            mContainerService = null;
778            mBound = false;
779            Process.setThreadPriority(Process.THREAD_PRIORITY_DEFAULT);
780            mContext.unbindService(mDefContainerConn);
781            Process.setThreadPriority(Process.THREAD_PRIORITY_BACKGROUND);
782        }
783
784        PackageHandler(Looper looper) {
785            super(looper);
786        }
787
788        public void handleMessage(Message msg) {
789            try {
790                doHandleMessage(msg);
791            } finally {
792                Process.setThreadPriority(Process.THREAD_PRIORITY_BACKGROUND);
793            }
794        }
795
796        void doHandleMessage(Message msg) {
797            switch (msg.what) {
798                case INIT_COPY: {
799                    HandlerParams params = (HandlerParams) msg.obj;
800                    int idx = mPendingInstalls.size();
801                    if (DEBUG_INSTALL) Slog.i(TAG, "init_copy idx=" + idx + ": " + params);
802                    // If a bind was already initiated we dont really
803                    // need to do anything. The pending install
804                    // will be processed later on.
805                    if (!mBound) {
806                        // If this is the only one pending we might
807                        // have to bind to the service again.
808                        if (!connectToService()) {
809                            Slog.e(TAG, "Failed to bind to media container service");
810                            params.serviceError();
811                            return;
812                        } else {
813                            // Once we bind to the service, the first
814                            // pending request will be processed.
815                            mPendingInstalls.add(idx, params);
816                        }
817                    } else {
818                        mPendingInstalls.add(idx, params);
819                        // Already bound to the service. Just make
820                        // sure we trigger off processing the first request.
821                        if (idx == 0) {
822                            mHandler.sendEmptyMessage(MCS_BOUND);
823                        }
824                    }
825                    break;
826                }
827                case MCS_BOUND: {
828                    if (DEBUG_INSTALL) Slog.i(TAG, "mcs_bound");
829                    if (msg.obj != null) {
830                        mContainerService = (IMediaContainerService) msg.obj;
831                    }
832                    if (mContainerService == null) {
833                        // Something seriously wrong. Bail out
834                        Slog.e(TAG, "Cannot bind to media container service");
835                        for (HandlerParams params : mPendingInstalls) {
836                            // Indicate service bind error
837                            params.serviceError();
838                        }
839                        mPendingInstalls.clear();
840                    } else if (mPendingInstalls.size() > 0) {
841                        HandlerParams params = mPendingInstalls.get(0);
842                        if (params != null) {
843                            if (params.startCopy()) {
844                                // We are done...  look for more work or to
845                                // go idle.
846                                if (DEBUG_SD_INSTALL) Log.i(TAG,
847                                        "Checking for more work or unbind...");
848                                // Delete pending install
849                                if (mPendingInstalls.size() > 0) {
850                                    mPendingInstalls.remove(0);
851                                }
852                                if (mPendingInstalls.size() == 0) {
853                                    if (mBound) {
854                                        if (DEBUG_SD_INSTALL) Log.i(TAG,
855                                                "Posting delayed MCS_UNBIND");
856                                        removeMessages(MCS_UNBIND);
857                                        Message ubmsg = obtainMessage(MCS_UNBIND);
858                                        // Unbind after a little delay, to avoid
859                                        // continual thrashing.
860                                        sendMessageDelayed(ubmsg, 10000);
861                                    }
862                                } else {
863                                    // There are more pending requests in queue.
864                                    // Just post MCS_BOUND message to trigger processing
865                                    // of next pending install.
866                                    if (DEBUG_SD_INSTALL) Log.i(TAG,
867                                            "Posting MCS_BOUND for next work");
868                                    mHandler.sendEmptyMessage(MCS_BOUND);
869                                }
870                            }
871                        }
872                    } else {
873                        // Should never happen ideally.
874                        Slog.w(TAG, "Empty queue");
875                    }
876                    break;
877                }
878                case MCS_RECONNECT: {
879                    if (DEBUG_INSTALL) Slog.i(TAG, "mcs_reconnect");
880                    if (mPendingInstalls.size() > 0) {
881                        if (mBound) {
882                            disconnectService();
883                        }
884                        if (!connectToService()) {
885                            Slog.e(TAG, "Failed to bind to media container service");
886                            for (HandlerParams params : mPendingInstalls) {
887                                // Indicate service bind error
888                                params.serviceError();
889                            }
890                            mPendingInstalls.clear();
891                        }
892                    }
893                    break;
894                }
895                case MCS_UNBIND: {
896                    // If there is no actual work left, then time to unbind.
897                    if (DEBUG_INSTALL) Slog.i(TAG, "mcs_unbind");
898
899                    if (mPendingInstalls.size() == 0 && mPendingVerification.size() == 0) {
900                        if (mBound) {
901                            if (DEBUG_INSTALL) Slog.i(TAG, "calling disconnectService()");
902
903                            disconnectService();
904                        }
905                    } else if (mPendingInstalls.size() > 0) {
906                        // There are more pending requests in queue.
907                        // Just post MCS_BOUND message to trigger processing
908                        // of next pending install.
909                        mHandler.sendEmptyMessage(MCS_BOUND);
910                    }
911
912                    break;
913                }
914                case MCS_GIVE_UP: {
915                    if (DEBUG_INSTALL) Slog.i(TAG, "mcs_giveup too many retries");
916                    mPendingInstalls.remove(0);
917                    break;
918                }
919                case SEND_PENDING_BROADCAST: {
920                    String packages[];
921                    ArrayList<String> components[];
922                    int size = 0;
923                    int uids[];
924                    Process.setThreadPriority(Process.THREAD_PRIORITY_DEFAULT);
925                    synchronized (mPackages) {
926                        if (mPendingBroadcasts == null) {
927                            return;
928                        }
929                        size = mPendingBroadcasts.size();
930                        if (size <= 0) {
931                            // Nothing to be done. Just return
932                            return;
933                        }
934                        packages = new String[size];
935                        components = new ArrayList[size];
936                        uids = new int[size];
937                        int i = 0;  // filling out the above arrays
938
939                        for (int n = 0; n < mPendingBroadcasts.userIdCount(); n++) {
940                            int packageUserId = mPendingBroadcasts.userIdAt(n);
941                            Iterator<Map.Entry<String, ArrayList<String>>> it
942                                    = mPendingBroadcasts.packagesForUserId(packageUserId)
943                                            .entrySet().iterator();
944                            while (it.hasNext() && i < size) {
945                                Map.Entry<String, ArrayList<String>> ent = it.next();
946                                packages[i] = ent.getKey();
947                                components[i] = ent.getValue();
948                                PackageSetting ps = mSettings.mPackages.get(ent.getKey());
949                                uids[i] = (ps != null)
950                                        ? UserHandle.getUid(packageUserId, ps.appId)
951                                        : -1;
952                                i++;
953                            }
954                        }
955                        size = i;
956                        mPendingBroadcasts.clear();
957                    }
958                    // Send broadcasts
959                    for (int i = 0; i < size; i++) {
960                        sendPackageChangedBroadcast(packages[i], true, components[i], uids[i]);
961                    }
962                    Process.setThreadPriority(Process.THREAD_PRIORITY_BACKGROUND);
963                    break;
964                }
965                case START_CLEANING_PACKAGE: {
966                    Process.setThreadPriority(Process.THREAD_PRIORITY_DEFAULT);
967                    final String packageName = (String)msg.obj;
968                    final int userId = msg.arg1;
969                    final boolean andCode = msg.arg2 != 0;
970                    synchronized (mPackages) {
971                        if (userId == UserHandle.USER_ALL) {
972                            int[] users = sUserManager.getUserIds();
973                            for (int user : users) {
974                                mSettings.addPackageToCleanLPw(
975                                        new PackageCleanItem(user, packageName, andCode));
976                            }
977                        } else {
978                            mSettings.addPackageToCleanLPw(
979                                    new PackageCleanItem(userId, packageName, andCode));
980                        }
981                    }
982                    Process.setThreadPriority(Process.THREAD_PRIORITY_BACKGROUND);
983                    startCleaningPackages();
984                } break;
985                case POST_INSTALL: {
986                    if (DEBUG_INSTALL) Log.v(TAG, "Handling post-install for " + msg.arg1);
987                    PostInstallData data = mRunningInstalls.get(msg.arg1);
988                    mRunningInstalls.delete(msg.arg1);
989                    boolean deleteOld = false;
990
991                    if (data != null) {
992                        InstallArgs args = data.args;
993                        PackageInstalledInfo res = data.res;
994
995                        if (res.returnCode == PackageManager.INSTALL_SUCCEEDED) {
996                            res.removedInfo.sendBroadcast(false, true, false);
997                            Bundle extras = new Bundle(1);
998                            extras.putInt(Intent.EXTRA_UID, res.uid);
999                            // Determine the set of users who are adding this
1000                            // package for the first time vs. those who are seeing
1001                            // an update.
1002                            int[] firstUsers;
1003                            int[] updateUsers = new int[0];
1004                            if (res.origUsers == null || res.origUsers.length == 0) {
1005                                firstUsers = res.newUsers;
1006                            } else {
1007                                firstUsers = new int[0];
1008                                for (int i=0; i<res.newUsers.length; i++) {
1009                                    int user = res.newUsers[i];
1010                                    boolean isNew = true;
1011                                    for (int j=0; j<res.origUsers.length; j++) {
1012                                        if (res.origUsers[j] == user) {
1013                                            isNew = false;
1014                                            break;
1015                                        }
1016                                    }
1017                                    if (isNew) {
1018                                        int[] newFirst = new int[firstUsers.length+1];
1019                                        System.arraycopy(firstUsers, 0, newFirst, 0,
1020                                                firstUsers.length);
1021                                        newFirst[firstUsers.length] = user;
1022                                        firstUsers = newFirst;
1023                                    } else {
1024                                        int[] newUpdate = new int[updateUsers.length+1];
1025                                        System.arraycopy(updateUsers, 0, newUpdate, 0,
1026                                                updateUsers.length);
1027                                        newUpdate[updateUsers.length] = user;
1028                                        updateUsers = newUpdate;
1029                                    }
1030                                }
1031                            }
1032                            sendPackageBroadcast(Intent.ACTION_PACKAGE_ADDED,
1033                                    res.pkg.applicationInfo.packageName,
1034                                    extras, null, null, firstUsers);
1035                            final boolean update = res.removedInfo.removedPackage != null;
1036                            if (update) {
1037                                extras.putBoolean(Intent.EXTRA_REPLACING, true);
1038                            }
1039                            sendPackageBroadcast(Intent.ACTION_PACKAGE_ADDED,
1040                                    res.pkg.applicationInfo.packageName,
1041                                    extras, null, null, updateUsers);
1042                            if (update) {
1043                                sendPackageBroadcast(Intent.ACTION_PACKAGE_REPLACED,
1044                                        res.pkg.applicationInfo.packageName,
1045                                        extras, null, null, updateUsers);
1046                                sendPackageBroadcast(Intent.ACTION_MY_PACKAGE_REPLACED,
1047                                        null, null,
1048                                        res.pkg.applicationInfo.packageName, null, updateUsers);
1049
1050                                // treat asec-hosted packages like removable media on upgrade
1051                                if (res.pkg.isForwardLocked() || isExternal(res.pkg)) {
1052                                    if (DEBUG_INSTALL) {
1053                                        Slog.i(TAG, "upgrading pkg " + res.pkg
1054                                                + " is ASEC-hosted -> AVAILABLE");
1055                                    }
1056                                    int[] uidArray = new int[] { res.pkg.applicationInfo.uid };
1057                                    ArrayList<String> pkgList = new ArrayList<String>(1);
1058                                    pkgList.add(res.pkg.applicationInfo.packageName);
1059                                    sendResourcesChangedBroadcast(true, true,
1060                                            pkgList,uidArray, null);
1061                                }
1062                            }
1063                            if (res.removedInfo.args != null) {
1064                                // Remove the replaced package's older resources safely now
1065                                deleteOld = true;
1066                            }
1067
1068                            // Log current value of "unknown sources" setting
1069                            EventLog.writeEvent(EventLogTags.UNKNOWN_SOURCES_ENABLED,
1070                                getUnknownSourcesSettings());
1071                        }
1072                        // Force a gc to clear up things
1073                        Runtime.getRuntime().gc();
1074                        // We delete after a gc for applications  on sdcard.
1075                        if (deleteOld) {
1076                            synchronized (mInstallLock) {
1077                                res.removedInfo.args.doPostDeleteLI(true);
1078                            }
1079                        }
1080                        if (args.observer != null) {
1081                            try {
1082                                Bundle extras = extrasForInstallResult(res);
1083                                args.observer.onPackageInstalled(res.name, res.returnCode,
1084                                        res.returnMsg, extras);
1085                            } catch (RemoteException e) {
1086                                Slog.i(TAG, "Observer no longer exists.");
1087                            }
1088                        }
1089                    } else {
1090                        Slog.e(TAG, "Bogus post-install token " + msg.arg1);
1091                    }
1092                } break;
1093                case UPDATED_MEDIA_STATUS: {
1094                    if (DEBUG_SD_INSTALL) Log.i(TAG, "Got message UPDATED_MEDIA_STATUS");
1095                    boolean reportStatus = msg.arg1 == 1;
1096                    boolean doGc = msg.arg2 == 1;
1097                    if (DEBUG_SD_INSTALL) Log.i(TAG, "reportStatus=" + reportStatus + ", doGc = " + doGc);
1098                    if (doGc) {
1099                        // Force a gc to clear up stale containers.
1100                        Runtime.getRuntime().gc();
1101                    }
1102                    if (msg.obj != null) {
1103                        @SuppressWarnings("unchecked")
1104                        Set<AsecInstallArgs> args = (Set<AsecInstallArgs>) msg.obj;
1105                        if (DEBUG_SD_INSTALL) Log.i(TAG, "Unloading all containers");
1106                        // Unload containers
1107                        unloadAllContainers(args);
1108                    }
1109                    if (reportStatus) {
1110                        try {
1111                            if (DEBUG_SD_INSTALL) Log.i(TAG, "Invoking MountService call back");
1112                            PackageHelper.getMountService().finishMediaUpdate();
1113                        } catch (RemoteException e) {
1114                            Log.e(TAG, "MountService not running?");
1115                        }
1116                    }
1117                } break;
1118                case WRITE_SETTINGS: {
1119                    Process.setThreadPriority(Process.THREAD_PRIORITY_DEFAULT);
1120                    synchronized (mPackages) {
1121                        removeMessages(WRITE_SETTINGS);
1122                        removeMessages(WRITE_PACKAGE_RESTRICTIONS);
1123                        mSettings.writeLPr();
1124                        mDirtyUsers.clear();
1125                    }
1126                    Process.setThreadPriority(Process.THREAD_PRIORITY_BACKGROUND);
1127                } break;
1128                case WRITE_PACKAGE_RESTRICTIONS: {
1129                    Process.setThreadPriority(Process.THREAD_PRIORITY_DEFAULT);
1130                    synchronized (mPackages) {
1131                        removeMessages(WRITE_PACKAGE_RESTRICTIONS);
1132                        for (int userId : mDirtyUsers) {
1133                            mSettings.writePackageRestrictionsLPr(userId);
1134                        }
1135                        mDirtyUsers.clear();
1136                    }
1137                    Process.setThreadPriority(Process.THREAD_PRIORITY_BACKGROUND);
1138                } break;
1139                case CHECK_PENDING_VERIFICATION: {
1140                    final int verificationId = msg.arg1;
1141                    final PackageVerificationState state = mPendingVerification.get(verificationId);
1142
1143                    if ((state != null) && !state.timeoutExtended()) {
1144                        final InstallArgs args = state.getInstallArgs();
1145                        final Uri originUri = Uri.fromFile(args.origin.resolvedFile);
1146
1147                        Slog.i(TAG, "Verification timed out for " + originUri);
1148                        mPendingVerification.remove(verificationId);
1149
1150                        int ret = PackageManager.INSTALL_FAILED_VERIFICATION_FAILURE;
1151
1152                        if (getDefaultVerificationResponse() == PackageManager.VERIFICATION_ALLOW) {
1153                            Slog.i(TAG, "Continuing with installation of " + originUri);
1154                            state.setVerifierResponse(Binder.getCallingUid(),
1155                                    PackageManager.VERIFICATION_ALLOW_WITHOUT_SUFFICIENT);
1156                            broadcastPackageVerified(verificationId, originUri,
1157                                    PackageManager.VERIFICATION_ALLOW,
1158                                    state.getInstallArgs().getUser());
1159                            try {
1160                                ret = args.copyApk(mContainerService, true);
1161                            } catch (RemoteException e) {
1162                                Slog.e(TAG, "Could not contact the ContainerService");
1163                            }
1164                        } else {
1165                            broadcastPackageVerified(verificationId, originUri,
1166                                    PackageManager.VERIFICATION_REJECT,
1167                                    state.getInstallArgs().getUser());
1168                        }
1169
1170                        processPendingInstall(args, ret);
1171                        mHandler.sendEmptyMessage(MCS_UNBIND);
1172                    }
1173                    break;
1174                }
1175                case PACKAGE_VERIFIED: {
1176                    final int verificationId = msg.arg1;
1177
1178                    final PackageVerificationState state = mPendingVerification.get(verificationId);
1179                    if (state == null) {
1180                        Slog.w(TAG, "Invalid verification token " + verificationId + " received");
1181                        break;
1182                    }
1183
1184                    final PackageVerificationResponse response = (PackageVerificationResponse) msg.obj;
1185
1186                    state.setVerifierResponse(response.callerUid, response.code);
1187
1188                    if (state.isVerificationComplete()) {
1189                        mPendingVerification.remove(verificationId);
1190
1191                        final InstallArgs args = state.getInstallArgs();
1192                        final Uri originUri = Uri.fromFile(args.origin.resolvedFile);
1193
1194                        int ret;
1195                        if (state.isInstallAllowed()) {
1196                            ret = PackageManager.INSTALL_FAILED_INTERNAL_ERROR;
1197                            broadcastPackageVerified(verificationId, originUri,
1198                                    response.code, state.getInstallArgs().getUser());
1199                            try {
1200                                ret = args.copyApk(mContainerService, true);
1201                            } catch (RemoteException e) {
1202                                Slog.e(TAG, "Could not contact the ContainerService");
1203                            }
1204                        } else {
1205                            ret = PackageManager.INSTALL_FAILED_VERIFICATION_FAILURE;
1206                        }
1207
1208                        processPendingInstall(args, ret);
1209
1210                        mHandler.sendEmptyMessage(MCS_UNBIND);
1211                    }
1212
1213                    break;
1214                }
1215            }
1216        }
1217    }
1218
1219    Bundle extrasForInstallResult(PackageInstalledInfo res) {
1220        Bundle extras = null;
1221        switch (res.returnCode) {
1222            case PackageManager.INSTALL_FAILED_DUPLICATE_PERMISSION: {
1223                extras = new Bundle();
1224                extras.putString(PackageManager.EXTRA_FAILURE_EXISTING_PERMISSION,
1225                        res.origPermission);
1226                extras.putString(PackageManager.EXTRA_FAILURE_EXISTING_PACKAGE,
1227                        res.origPackage);
1228                break;
1229            }
1230        }
1231        return extras;
1232    }
1233
1234    void scheduleWriteSettingsLocked() {
1235        if (!mHandler.hasMessages(WRITE_SETTINGS)) {
1236            mHandler.sendEmptyMessageDelayed(WRITE_SETTINGS, WRITE_SETTINGS_DELAY);
1237        }
1238    }
1239
1240    void scheduleWritePackageRestrictionsLocked(int userId) {
1241        if (!sUserManager.exists(userId)) return;
1242        mDirtyUsers.add(userId);
1243        if (!mHandler.hasMessages(WRITE_PACKAGE_RESTRICTIONS)) {
1244            mHandler.sendEmptyMessageDelayed(WRITE_PACKAGE_RESTRICTIONS, WRITE_SETTINGS_DELAY);
1245        }
1246    }
1247
1248    public static final PackageManagerService main(Context context, Installer installer,
1249            boolean factoryTest, boolean onlyCore) {
1250        PackageManagerService m = new PackageManagerService(context, installer,
1251                factoryTest, onlyCore);
1252        ServiceManager.addService("package", m);
1253        return m;
1254    }
1255
1256    static String[] splitString(String str, char sep) {
1257        int count = 1;
1258        int i = 0;
1259        while ((i=str.indexOf(sep, i)) >= 0) {
1260            count++;
1261            i++;
1262        }
1263
1264        String[] res = new String[count];
1265        i=0;
1266        count = 0;
1267        int lastI=0;
1268        while ((i=str.indexOf(sep, i)) >= 0) {
1269            res[count] = str.substring(lastI, i);
1270            count++;
1271            i++;
1272            lastI = i;
1273        }
1274        res[count] = str.substring(lastI, str.length());
1275        return res;
1276    }
1277
1278    private static void getDefaultDisplayMetrics(Context context, DisplayMetrics metrics) {
1279        DisplayManager displayManager = (DisplayManager) context.getSystemService(
1280                Context.DISPLAY_SERVICE);
1281        displayManager.getDisplay(Display.DEFAULT_DISPLAY).getMetrics(metrics);
1282    }
1283
1284    public PackageManagerService(Context context, Installer installer,
1285            boolean factoryTest, boolean onlyCore) {
1286        EventLog.writeEvent(EventLogTags.BOOT_PROGRESS_PMS_START,
1287                SystemClock.uptimeMillis());
1288
1289        if (mSdkVersion <= 0) {
1290            Slog.w(TAG, "**** ro.build.version.sdk not set!");
1291        }
1292
1293        mContext = context;
1294        mFactoryTest = factoryTest;
1295        mOnlyCore = onlyCore;
1296        mLazyDexOpt = "eng".equals(SystemProperties.get("ro.build.type"));
1297        mMetrics = new DisplayMetrics();
1298        mSettings = new Settings(context);
1299        mSettings.addSharedUserLPw("android.uid.system", Process.SYSTEM_UID,
1300                ApplicationInfo.FLAG_SYSTEM, ApplicationInfo.PRIVATE_FLAG_PRIVILEGED);
1301        mSettings.addSharedUserLPw("android.uid.phone", RADIO_UID,
1302                ApplicationInfo.FLAG_SYSTEM, ApplicationInfo.PRIVATE_FLAG_PRIVILEGED);
1303        mSettings.addSharedUserLPw("android.uid.log", LOG_UID,
1304                ApplicationInfo.FLAG_SYSTEM, ApplicationInfo.PRIVATE_FLAG_PRIVILEGED);
1305        mSettings.addSharedUserLPw("android.uid.nfc", NFC_UID,
1306                ApplicationInfo.FLAG_SYSTEM, ApplicationInfo.PRIVATE_FLAG_PRIVILEGED);
1307        mSettings.addSharedUserLPw("android.uid.bluetooth", BLUETOOTH_UID,
1308                ApplicationInfo.FLAG_SYSTEM, ApplicationInfo.PRIVATE_FLAG_PRIVILEGED);
1309        mSettings.addSharedUserLPw("android.uid.shell", SHELL_UID,
1310                ApplicationInfo.FLAG_SYSTEM, ApplicationInfo.PRIVATE_FLAG_PRIVILEGED);
1311
1312        // TODO: add a property to control this?
1313        long dexOptLRUThresholdInMinutes;
1314        if (mLazyDexOpt) {
1315            dexOptLRUThresholdInMinutes = 30; // only last 30 minutes of apps for eng builds.
1316        } else {
1317            dexOptLRUThresholdInMinutes = 7 * 24 * 60; // apps used in the 7 days for users.
1318        }
1319        mDexOptLRUThresholdInMills = dexOptLRUThresholdInMinutes * 60 * 1000;
1320
1321        String separateProcesses = SystemProperties.get("debug.separate_processes");
1322        if (separateProcesses != null && separateProcesses.length() > 0) {
1323            if ("*".equals(separateProcesses)) {
1324                mDefParseFlags = PackageParser.PARSE_IGNORE_PROCESSES;
1325                mSeparateProcesses = null;
1326                Slog.w(TAG, "Running with debug.separate_processes: * (ALL)");
1327            } else {
1328                mDefParseFlags = 0;
1329                mSeparateProcesses = separateProcesses.split(",");
1330                Slog.w(TAG, "Running with debug.separate_processes: "
1331                        + separateProcesses);
1332            }
1333        } else {
1334            mDefParseFlags = 0;
1335            mSeparateProcesses = null;
1336        }
1337
1338        mInstaller = installer;
1339        mPackageDexOptimizer = new PackageDexOptimizer(this);
1340
1341        getDefaultDisplayMetrics(context, mMetrics);
1342
1343        SystemConfig systemConfig = SystemConfig.getInstance();
1344        mGlobalGids = systemConfig.getGlobalGids();
1345        mSystemPermissions = systemConfig.getSystemPermissions();
1346        mAvailableFeatures = systemConfig.getAvailableFeatures();
1347
1348        synchronized (mInstallLock) {
1349        // writer
1350        synchronized (mPackages) {
1351            mHandlerThread = new ServiceThread(TAG,
1352                    Process.THREAD_PRIORITY_BACKGROUND, true /*allowIo*/);
1353            mHandlerThread.start();
1354            mHandler = new PackageHandler(mHandlerThread.getLooper());
1355            Watchdog.getInstance().addThread(mHandler, WATCHDOG_TIMEOUT);
1356
1357            File dataDir = Environment.getDataDirectory();
1358            mAppDataDir = new File(dataDir, "data");
1359            mAppInstallDir = new File(dataDir, "app");
1360            mAppLib32InstallDir = new File(dataDir, "app-lib");
1361            mAsecInternalPath = new File(dataDir, "app-asec").getPath();
1362            mUserAppDataDir = new File(dataDir, "user");
1363            mDrmAppPrivateInstallDir = new File(dataDir, "app-private");
1364
1365            sUserManager = new UserManagerService(context, this,
1366                    mInstallLock, mPackages);
1367
1368            // Propagate permission configuration in to package manager.
1369            ArrayMap<String, SystemConfig.PermissionEntry> permConfig
1370                    = systemConfig.getPermissions();
1371            for (int i=0; i<permConfig.size(); i++) {
1372                SystemConfig.PermissionEntry perm = permConfig.valueAt(i);
1373                BasePermission bp = mSettings.mPermissions.get(perm.name);
1374                if (bp == null) {
1375                    bp = new BasePermission(perm.name, "android", BasePermission.TYPE_BUILTIN);
1376                    mSettings.mPermissions.put(perm.name, bp);
1377                }
1378                if (perm.gids != null) {
1379                    bp.gids = appendInts(bp.gids, perm.gids);
1380                }
1381            }
1382
1383            ArrayMap<String, String> libConfig = systemConfig.getSharedLibraries();
1384            for (int i=0; i<libConfig.size(); i++) {
1385                mSharedLibraries.put(libConfig.keyAt(i),
1386                        new SharedLibraryEntry(libConfig.valueAt(i), null));
1387            }
1388
1389            mFoundPolicyFile = SELinuxMMAC.readInstallPolicy();
1390
1391            mRestoredSettings = mSettings.readLPw(this, sUserManager.getUsers(false),
1392                    mSdkVersion, mOnlyCore);
1393
1394            String customResolverActivity = Resources.getSystem().getString(
1395                    R.string.config_customResolverActivity);
1396            if (TextUtils.isEmpty(customResolverActivity)) {
1397                customResolverActivity = null;
1398            } else {
1399                mCustomResolverComponentName = ComponentName.unflattenFromString(
1400                        customResolverActivity);
1401            }
1402
1403            long startTime = SystemClock.uptimeMillis();
1404
1405            EventLog.writeEvent(EventLogTags.BOOT_PROGRESS_PMS_SYSTEM_SCAN_START,
1406                    startTime);
1407
1408            // Set flag to monitor and not change apk file paths when
1409            // scanning install directories.
1410            final int scanFlags = SCAN_NO_PATHS | SCAN_DEFER_DEX | SCAN_BOOTING;
1411
1412            final ArraySet<String> alreadyDexOpted = new ArraySet<String>();
1413
1414            /**
1415             * Add everything in the in the boot class path to the
1416             * list of process files because dexopt will have been run
1417             * if necessary during zygote startup.
1418             */
1419            final String bootClassPath = System.getenv("BOOTCLASSPATH");
1420            final String systemServerClassPath = System.getenv("SYSTEMSERVERCLASSPATH");
1421
1422            if (bootClassPath != null) {
1423                String[] bootClassPathElements = splitString(bootClassPath, ':');
1424                for (String element : bootClassPathElements) {
1425                    alreadyDexOpted.add(element);
1426                }
1427            } else {
1428                Slog.w(TAG, "No BOOTCLASSPATH found!");
1429            }
1430
1431            if (systemServerClassPath != null) {
1432                String[] systemServerClassPathElements = splitString(systemServerClassPath, ':');
1433                for (String element : systemServerClassPathElements) {
1434                    alreadyDexOpted.add(element);
1435                }
1436            } else {
1437                Slog.w(TAG, "No SYSTEMSERVERCLASSPATH found!");
1438            }
1439
1440            final List<String> allInstructionSets = InstructionSets.getAllInstructionSets();
1441            final String[] dexCodeInstructionSets =
1442                    getDexCodeInstructionSets(
1443                            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 | SCAN_REQUIRE_KNOWN, 0);
1650
1651                scanDirLI(mDrmAppPrivateInstallDir, PackageParser.PARSE_FORWARD_LOCK,
1652                        scanFlags | SCAN_REQUIRE_KNOWN, 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                mInstaller.rmPackageDir(ps.codePath.getAbsolutePath());
1878            } else {
1879                ps.codePath.delete();
1880            }
1881        }
1882        if (ps.resourcePath != null && !ps.resourcePath.equals(ps.codePath)) {
1883            if (ps.resourcePath.isDirectory()) {
1884                FileUtils.deleteContents(ps.resourcePath);
1885            }
1886            ps.resourcePath.delete();
1887        }
1888        mSettings.removePackageLPw(ps.name);
1889    }
1890
1891    static int[] appendInts(int[] cur, int[] add) {
1892        if (add == null) return cur;
1893        if (cur == null) return add;
1894        final int N = add.length;
1895        for (int i=0; i<N; i++) {
1896            cur = appendInt(cur, add[i]);
1897        }
1898        return cur;
1899    }
1900
1901    static int[] removeInts(int[] cur, int[] rem) {
1902        if (rem == null) return cur;
1903        if (cur == null) return cur;
1904        final int N = rem.length;
1905        for (int i=0; i<N; i++) {
1906            cur = removeInt(cur, rem[i]);
1907        }
1908        return cur;
1909    }
1910
1911    PackageInfo generatePackageInfo(PackageParser.Package p, int flags, int userId) {
1912        if (!sUserManager.exists(userId)) return null;
1913        final PackageSetting ps = (PackageSetting) p.mExtras;
1914        if (ps == null) {
1915            return null;
1916        }
1917        final GrantedPermissions gp = ps.sharedUser != null ? ps.sharedUser : ps;
1918        final PackageUserState state = ps.readUserState(userId);
1919        return PackageParser.generatePackageInfo(p, gp.gids, flags,
1920                ps.firstInstallTime, ps.lastUpdateTime, gp.grantedPermissions,
1921                state, userId);
1922    }
1923
1924    @Override
1925    public boolean isPackageAvailable(String packageName, int userId) {
1926        if (!sUserManager.exists(userId)) return false;
1927        enforceCrossUserPermission(Binder.getCallingUid(), userId, false, false, "is package available");
1928        synchronized (mPackages) {
1929            PackageParser.Package p = mPackages.get(packageName);
1930            if (p != null) {
1931                final PackageSetting ps = (PackageSetting) p.mExtras;
1932                if (ps != null) {
1933                    final PackageUserState state = ps.readUserState(userId);
1934                    if (state != null) {
1935                        return PackageParser.isAvailable(state);
1936                    }
1937                }
1938            }
1939        }
1940        return false;
1941    }
1942
1943    @Override
1944    public PackageInfo getPackageInfo(String packageName, int flags, int userId) {
1945        if (!sUserManager.exists(userId)) return null;
1946        enforceCrossUserPermission(Binder.getCallingUid(), userId, false, false, "get package info");
1947        // reader
1948        synchronized (mPackages) {
1949            PackageParser.Package p = mPackages.get(packageName);
1950            if (DEBUG_PACKAGE_INFO)
1951                Log.v(TAG, "getPackageInfo " + packageName + ": " + p);
1952            if (p != null) {
1953                return generatePackageInfo(p, flags, userId);
1954            }
1955            if((flags & PackageManager.GET_UNINSTALLED_PACKAGES) != 0) {
1956                return generatePackageInfoFromSettingsLPw(packageName, flags, userId);
1957            }
1958        }
1959        return null;
1960    }
1961
1962    @Override
1963    public String[] currentToCanonicalPackageNames(String[] names) {
1964        String[] out = new String[names.length];
1965        // reader
1966        synchronized (mPackages) {
1967            for (int i=names.length-1; i>=0; i--) {
1968                PackageSetting ps = mSettings.mPackages.get(names[i]);
1969                out[i] = ps != null && ps.realName != null ? ps.realName : names[i];
1970            }
1971        }
1972        return out;
1973    }
1974
1975    @Override
1976    public String[] canonicalToCurrentPackageNames(String[] names) {
1977        String[] out = new String[names.length];
1978        // reader
1979        synchronized (mPackages) {
1980            for (int i=names.length-1; i>=0; i--) {
1981                String cur = mSettings.mRenamedPackages.get(names[i]);
1982                out[i] = cur != null ? cur : names[i];
1983            }
1984        }
1985        return out;
1986    }
1987
1988    @Override
1989    public int getPackageUid(String packageName, int userId) {
1990        if (!sUserManager.exists(userId)) return -1;
1991        enforceCrossUserPermission(Binder.getCallingUid(), userId, false, false, "get package uid");
1992        // reader
1993        synchronized (mPackages) {
1994            PackageParser.Package p = mPackages.get(packageName);
1995            if(p != null) {
1996                return UserHandle.getUid(userId, p.applicationInfo.uid);
1997            }
1998            PackageSetting ps = mSettings.mPackages.get(packageName);
1999            if((ps == null) || (ps.pkg == null) || (ps.pkg.applicationInfo == null)) {
2000                return -1;
2001            }
2002            p = ps.pkg;
2003            return p != null ? UserHandle.getUid(userId, p.applicationInfo.uid) : -1;
2004        }
2005    }
2006
2007    @Override
2008    public int[] getPackageGids(String packageName) {
2009        // reader
2010        synchronized (mPackages) {
2011            PackageParser.Package p = mPackages.get(packageName);
2012            if (DEBUG_PACKAGE_INFO)
2013                Log.v(TAG, "getPackageGids" + packageName + ": " + p);
2014            if (p != null) {
2015                final PackageSetting ps = (PackageSetting)p.mExtras;
2016                return ps.getGids();
2017            }
2018        }
2019        // stupid thing to indicate an error.
2020        return new int[0];
2021    }
2022
2023    static final PermissionInfo generatePermissionInfo(
2024            BasePermission bp, int flags) {
2025        if (bp.perm != null) {
2026            return PackageParser.generatePermissionInfo(bp.perm, flags);
2027        }
2028        PermissionInfo pi = new PermissionInfo();
2029        pi.name = bp.name;
2030        pi.packageName = bp.sourcePackage;
2031        pi.nonLocalizedLabel = bp.name;
2032        pi.protectionLevel = bp.protectionLevel;
2033        return pi;
2034    }
2035
2036    @Override
2037    public PermissionInfo getPermissionInfo(String name, int flags) {
2038        // reader
2039        synchronized (mPackages) {
2040            final BasePermission p = mSettings.mPermissions.get(name);
2041            if (p != null) {
2042                return generatePermissionInfo(p, flags);
2043            }
2044            return null;
2045        }
2046    }
2047
2048    @Override
2049    public List<PermissionInfo> queryPermissionsByGroup(String group, int flags) {
2050        // reader
2051        synchronized (mPackages) {
2052            ArrayList<PermissionInfo> out = new ArrayList<PermissionInfo>(10);
2053            for (BasePermission p : mSettings.mPermissions.values()) {
2054                if (group == null) {
2055                    if (p.perm == null || p.perm.info.group == null) {
2056                        out.add(generatePermissionInfo(p, flags));
2057                    }
2058                } else {
2059                    if (p.perm != null && group.equals(p.perm.info.group)) {
2060                        out.add(PackageParser.generatePermissionInfo(p.perm, flags));
2061                    }
2062                }
2063            }
2064
2065            if (out.size() > 0) {
2066                return out;
2067            }
2068            return mPermissionGroups.containsKey(group) ? out : null;
2069        }
2070    }
2071
2072    @Override
2073    public PermissionGroupInfo getPermissionGroupInfo(String name, int flags) {
2074        // reader
2075        synchronized (mPackages) {
2076            return PackageParser.generatePermissionGroupInfo(
2077                    mPermissionGroups.get(name), flags);
2078        }
2079    }
2080
2081    @Override
2082    public List<PermissionGroupInfo> getAllPermissionGroups(int flags) {
2083        // reader
2084        synchronized (mPackages) {
2085            final int N = mPermissionGroups.size();
2086            ArrayList<PermissionGroupInfo> out
2087                    = new ArrayList<PermissionGroupInfo>(N);
2088            for (PackageParser.PermissionGroup pg : mPermissionGroups.values()) {
2089                out.add(PackageParser.generatePermissionGroupInfo(pg, flags));
2090            }
2091            return out;
2092        }
2093    }
2094
2095    private ApplicationInfo generateApplicationInfoFromSettingsLPw(String packageName, int flags,
2096            int userId) {
2097        if (!sUserManager.exists(userId)) return null;
2098        PackageSetting ps = mSettings.mPackages.get(packageName);
2099        if (ps != null) {
2100            if (ps.pkg == null) {
2101                PackageInfo pInfo = generatePackageInfoFromSettingsLPw(packageName,
2102                        flags, userId);
2103                if (pInfo != null) {
2104                    return pInfo.applicationInfo;
2105                }
2106                return null;
2107            }
2108            return PackageParser.generateApplicationInfo(ps.pkg, flags,
2109                    ps.readUserState(userId), userId);
2110        }
2111        return null;
2112    }
2113
2114    private PackageInfo generatePackageInfoFromSettingsLPw(String packageName, int flags,
2115            int userId) {
2116        if (!sUserManager.exists(userId)) return null;
2117        PackageSetting ps = mSettings.mPackages.get(packageName);
2118        if (ps != null) {
2119            PackageParser.Package pkg = ps.pkg;
2120            if (pkg == null) {
2121                if ((flags & PackageManager.GET_UNINSTALLED_PACKAGES) == 0) {
2122                    return null;
2123                }
2124                // Only data remains, so we aren't worried about code paths
2125                pkg = new PackageParser.Package(packageName);
2126                pkg.applicationInfo.packageName = packageName;
2127                pkg.applicationInfo.flags = ps.pkgFlags | ApplicationInfo.FLAG_IS_DATA_ONLY;
2128                pkg.applicationInfo.privateFlags = ps.pkgPrivateFlags;
2129                pkg.applicationInfo.dataDir =
2130                        getDataPathForPackage(packageName, 0).getPath();
2131                pkg.applicationInfo.primaryCpuAbi = ps.primaryCpuAbiString;
2132                pkg.applicationInfo.secondaryCpuAbi = ps.secondaryCpuAbiString;
2133            }
2134            return generatePackageInfo(pkg, flags, userId);
2135        }
2136        return null;
2137    }
2138
2139    @Override
2140    public ApplicationInfo getApplicationInfo(String packageName, int flags, int userId) {
2141        if (!sUserManager.exists(userId)) return null;
2142        enforceCrossUserPermission(Binder.getCallingUid(), userId, false, false, "get application info");
2143        // writer
2144        synchronized (mPackages) {
2145            PackageParser.Package p = mPackages.get(packageName);
2146            if (DEBUG_PACKAGE_INFO) Log.v(
2147                    TAG, "getApplicationInfo " + packageName
2148                    + ": " + p);
2149            if (p != null) {
2150                PackageSetting ps = mSettings.mPackages.get(packageName);
2151                if (ps == null) return null;
2152                // Note: isEnabledLP() does not apply here - always return info
2153                return PackageParser.generateApplicationInfo(
2154                        p, flags, ps.readUserState(userId), userId);
2155            }
2156            if ("android".equals(packageName)||"system".equals(packageName)) {
2157                return mAndroidApplication;
2158            }
2159            if ((flags & PackageManager.GET_UNINSTALLED_PACKAGES) != 0) {
2160                return generateApplicationInfoFromSettingsLPw(packageName, flags, userId);
2161            }
2162        }
2163        return null;
2164    }
2165
2166
2167    @Override
2168    public void freeStorageAndNotify(final long freeStorageSize, final IPackageDataObserver observer) {
2169        mContext.enforceCallingOrSelfPermission(
2170                android.Manifest.permission.CLEAR_APP_CACHE, null);
2171        // Queue up an async operation since clearing cache may take a little while.
2172        mHandler.post(new Runnable() {
2173            public void run() {
2174                mHandler.removeCallbacks(this);
2175                int retCode = -1;
2176                synchronized (mInstallLock) {
2177                    retCode = mInstaller.freeCache(freeStorageSize);
2178                    if (retCode < 0) {
2179                        Slog.w(TAG, "Couldn't clear application caches");
2180                    }
2181                }
2182                if (observer != null) {
2183                    try {
2184                        observer.onRemoveCompleted(null, (retCode >= 0));
2185                    } catch (RemoteException e) {
2186                        Slog.w(TAG, "RemoveException when invoking call back");
2187                    }
2188                }
2189            }
2190        });
2191    }
2192
2193    @Override
2194    public void freeStorage(final long freeStorageSize, final IntentSender pi) {
2195        mContext.enforceCallingOrSelfPermission(
2196                android.Manifest.permission.CLEAR_APP_CACHE, null);
2197        // Queue up an async operation since clearing cache may take a little while.
2198        mHandler.post(new Runnable() {
2199            public void run() {
2200                mHandler.removeCallbacks(this);
2201                int retCode = -1;
2202                synchronized (mInstallLock) {
2203                    retCode = mInstaller.freeCache(freeStorageSize);
2204                    if (retCode < 0) {
2205                        Slog.w(TAG, "Couldn't clear application caches");
2206                    }
2207                }
2208                if(pi != null) {
2209                    try {
2210                        // Callback via pending intent
2211                        int code = (retCode >= 0) ? 1 : 0;
2212                        pi.sendIntent(null, code, null,
2213                                null, null);
2214                    } catch (SendIntentException e1) {
2215                        Slog.i(TAG, "Failed to send pending intent");
2216                    }
2217                }
2218            }
2219        });
2220    }
2221
2222    void freeStorage(long freeStorageSize) throws IOException {
2223        synchronized (mInstallLock) {
2224            if (mInstaller.freeCache(freeStorageSize) < 0) {
2225                throw new IOException("Failed to free enough space");
2226            }
2227        }
2228    }
2229
2230    @Override
2231    public ActivityInfo getActivityInfo(ComponentName component, int flags, int userId) {
2232        if (!sUserManager.exists(userId)) return null;
2233        enforceCrossUserPermission(Binder.getCallingUid(), userId, false, false, "get activity info");
2234        synchronized (mPackages) {
2235            PackageParser.Activity a = mActivities.mActivities.get(component);
2236
2237            if (DEBUG_PACKAGE_INFO) Log.v(TAG, "getActivityInfo " + component + ": " + a);
2238            if (a != null && mSettings.isEnabledLPr(a.info, flags, userId)) {
2239                PackageSetting ps = mSettings.mPackages.get(component.getPackageName());
2240                if (ps == null) return null;
2241                return PackageParser.generateActivityInfo(a, flags, ps.readUserState(userId),
2242                        userId);
2243            }
2244            if (mResolveComponentName.equals(component)) {
2245                return PackageParser.generateActivityInfo(mResolveActivity, flags,
2246                        new PackageUserState(), userId);
2247            }
2248        }
2249        return null;
2250    }
2251
2252    @Override
2253    public boolean activitySupportsIntent(ComponentName component, Intent intent,
2254            String resolvedType) {
2255        synchronized (mPackages) {
2256            PackageParser.Activity a = mActivities.mActivities.get(component);
2257            if (a == null) {
2258                return false;
2259            }
2260            for (int i=0; i<a.intents.size(); i++) {
2261                if (a.intents.get(i).match(intent.getAction(), resolvedType, intent.getScheme(),
2262                        intent.getData(), intent.getCategories(), TAG) >= 0) {
2263                    return true;
2264                }
2265            }
2266            return false;
2267        }
2268    }
2269
2270    @Override
2271    public ActivityInfo getReceiverInfo(ComponentName component, int flags, int userId) {
2272        if (!sUserManager.exists(userId)) return null;
2273        enforceCrossUserPermission(Binder.getCallingUid(), userId, false, false, "get receiver info");
2274        synchronized (mPackages) {
2275            PackageParser.Activity a = mReceivers.mActivities.get(component);
2276            if (DEBUG_PACKAGE_INFO) Log.v(
2277                TAG, "getReceiverInfo " + component + ": " + a);
2278            if (a != null && mSettings.isEnabledLPr(a.info, flags, userId)) {
2279                PackageSetting ps = mSettings.mPackages.get(component.getPackageName());
2280                if (ps == null) return null;
2281                return PackageParser.generateActivityInfo(a, flags, ps.readUserState(userId),
2282                        userId);
2283            }
2284        }
2285        return null;
2286    }
2287
2288    @Override
2289    public ServiceInfo getServiceInfo(ComponentName component, int flags, int userId) {
2290        if (!sUserManager.exists(userId)) return null;
2291        enforceCrossUserPermission(Binder.getCallingUid(), userId, false, false, "get service info");
2292        synchronized (mPackages) {
2293            PackageParser.Service s = mServices.mServices.get(component);
2294            if (DEBUG_PACKAGE_INFO) Log.v(
2295                TAG, "getServiceInfo " + component + ": " + s);
2296            if (s != null && mSettings.isEnabledLPr(s.info, flags, userId)) {
2297                PackageSetting ps = mSettings.mPackages.get(component.getPackageName());
2298                if (ps == null) return null;
2299                return PackageParser.generateServiceInfo(s, flags, ps.readUserState(userId),
2300                        userId);
2301            }
2302        }
2303        return null;
2304    }
2305
2306    @Override
2307    public ProviderInfo getProviderInfo(ComponentName component, int flags, int userId) {
2308        if (!sUserManager.exists(userId)) return null;
2309        enforceCrossUserPermission(Binder.getCallingUid(), userId, false, false, "get provider info");
2310        synchronized (mPackages) {
2311            PackageParser.Provider p = mProviders.mProviders.get(component);
2312            if (DEBUG_PACKAGE_INFO) Log.v(
2313                TAG, "getProviderInfo " + component + ": " + p);
2314            if (p != null && mSettings.isEnabledLPr(p.info, flags, userId)) {
2315                PackageSetting ps = mSettings.mPackages.get(component.getPackageName());
2316                if (ps == null) return null;
2317                return PackageParser.generateProviderInfo(p, flags, ps.readUserState(userId),
2318                        userId);
2319            }
2320        }
2321        return null;
2322    }
2323
2324    @Override
2325    public String[] getSystemSharedLibraryNames() {
2326        Set<String> libSet;
2327        synchronized (mPackages) {
2328            libSet = mSharedLibraries.keySet();
2329            int size = libSet.size();
2330            if (size > 0) {
2331                String[] libs = new String[size];
2332                libSet.toArray(libs);
2333                return libs;
2334            }
2335        }
2336        return null;
2337    }
2338
2339    /**
2340     * @hide
2341     */
2342    PackageParser.Package findSharedNonSystemLibrary(String libName) {
2343        synchronized (mPackages) {
2344            PackageManagerService.SharedLibraryEntry lib = mSharedLibraries.get(libName);
2345            if (lib != null && lib.apk != null) {
2346                return mPackages.get(lib.apk);
2347            }
2348        }
2349        return null;
2350    }
2351
2352    @Override
2353    public FeatureInfo[] getSystemAvailableFeatures() {
2354        Collection<FeatureInfo> featSet;
2355        synchronized (mPackages) {
2356            featSet = mAvailableFeatures.values();
2357            int size = featSet.size();
2358            if (size > 0) {
2359                FeatureInfo[] features = new FeatureInfo[size+1];
2360                featSet.toArray(features);
2361                FeatureInfo fi = new FeatureInfo();
2362                fi.reqGlEsVersion = SystemProperties.getInt("ro.opengles.version",
2363                        FeatureInfo.GL_ES_VERSION_UNDEFINED);
2364                features[size] = fi;
2365                return features;
2366            }
2367        }
2368        return null;
2369    }
2370
2371    @Override
2372    public boolean hasSystemFeature(String name) {
2373        synchronized (mPackages) {
2374            return mAvailableFeatures.containsKey(name);
2375        }
2376    }
2377
2378    private void checkValidCaller(int uid, int userId) {
2379        if (UserHandle.getUserId(uid) == userId || uid == Process.SYSTEM_UID || uid == 0)
2380            return;
2381
2382        throw new SecurityException("Caller uid=" + uid
2383                + " is not privileged to communicate with user=" + userId);
2384    }
2385
2386    @Override
2387    public int checkPermission(String permName, String pkgName) {
2388        synchronized (mPackages) {
2389            PackageParser.Package p = mPackages.get(pkgName);
2390            if (p != null && p.mExtras != null) {
2391                PackageSetting ps = (PackageSetting)p.mExtras;
2392                if (ps.sharedUser != null) {
2393                    if (ps.sharedUser.grantedPermissions.contains(permName)) {
2394                        return PackageManager.PERMISSION_GRANTED;
2395                    }
2396                } else if (ps.grantedPermissions.contains(permName)) {
2397                    return PackageManager.PERMISSION_GRANTED;
2398                }
2399            }
2400        }
2401        return PackageManager.PERMISSION_DENIED;
2402    }
2403
2404    @Override
2405    public int checkUidPermission(String permName, int uid) {
2406        synchronized (mPackages) {
2407            Object obj = mSettings.getUserIdLPr(UserHandle.getAppId(uid));
2408            if (obj != null) {
2409                GrantedPermissions gp = (GrantedPermissions)obj;
2410                if (gp.grantedPermissions.contains(permName)) {
2411                    return PackageManager.PERMISSION_GRANTED;
2412                }
2413            } else {
2414                ArraySet<String> perms = mSystemPermissions.get(uid);
2415                if (perms != null && perms.contains(permName)) {
2416                    return PackageManager.PERMISSION_GRANTED;
2417                }
2418            }
2419        }
2420        return PackageManager.PERMISSION_DENIED;
2421    }
2422
2423    /**
2424     * Checks if the request is from the system or an app that has INTERACT_ACROSS_USERS
2425     * or INTERACT_ACROSS_USERS_FULL permissions, if the userid is not for the caller.
2426     * @param checkShell TODO(yamasani):
2427     * @param message the message to log on security exception
2428     */
2429    void enforceCrossUserPermission(int callingUid, int userId, boolean requireFullPermission,
2430            boolean checkShell, String message) {
2431        if (userId < 0) {
2432            throw new IllegalArgumentException("Invalid userId " + userId);
2433        }
2434        if (checkShell) {
2435            enforceShellRestriction(UserManager.DISALLOW_DEBUGGING_FEATURES, callingUid, userId);
2436        }
2437        if (userId == UserHandle.getUserId(callingUid)) return;
2438        if (callingUid != Process.SYSTEM_UID && callingUid != 0) {
2439            if (requireFullPermission) {
2440                mContext.enforceCallingOrSelfPermission(
2441                        android.Manifest.permission.INTERACT_ACROSS_USERS_FULL, message);
2442            } else {
2443                try {
2444                    mContext.enforceCallingOrSelfPermission(
2445                            android.Manifest.permission.INTERACT_ACROSS_USERS_FULL, message);
2446                } catch (SecurityException se) {
2447                    mContext.enforceCallingOrSelfPermission(
2448                            android.Manifest.permission.INTERACT_ACROSS_USERS, message);
2449                }
2450            }
2451        }
2452    }
2453
2454    void enforceShellRestriction(String restriction, int callingUid, int userHandle) {
2455        if (callingUid == Process.SHELL_UID) {
2456            if (userHandle >= 0
2457                    && sUserManager.hasUserRestriction(restriction, userHandle)) {
2458                throw new SecurityException("Shell does not have permission to access user "
2459                        + userHandle);
2460            } else if (userHandle < 0) {
2461                Slog.e(TAG, "Unable to check shell permission for user " + userHandle + "\n\t"
2462                        + Debug.getCallers(3));
2463            }
2464        }
2465    }
2466
2467    private BasePermission findPermissionTreeLP(String permName) {
2468        for(BasePermission bp : mSettings.mPermissionTrees.values()) {
2469            if (permName.startsWith(bp.name) &&
2470                    permName.length() > bp.name.length() &&
2471                    permName.charAt(bp.name.length()) == '.') {
2472                return bp;
2473            }
2474        }
2475        return null;
2476    }
2477
2478    private BasePermission checkPermissionTreeLP(String permName) {
2479        if (permName != null) {
2480            BasePermission bp = findPermissionTreeLP(permName);
2481            if (bp != null) {
2482                if (bp.uid == UserHandle.getAppId(Binder.getCallingUid())) {
2483                    return bp;
2484                }
2485                throw new SecurityException("Calling uid "
2486                        + Binder.getCallingUid()
2487                        + " is not allowed to add to permission tree "
2488                        + bp.name + " owned by uid " + bp.uid);
2489            }
2490        }
2491        throw new SecurityException("No permission tree found for " + permName);
2492    }
2493
2494    static boolean compareStrings(CharSequence s1, CharSequence s2) {
2495        if (s1 == null) {
2496            return s2 == null;
2497        }
2498        if (s2 == null) {
2499            return false;
2500        }
2501        if (s1.getClass() != s2.getClass()) {
2502            return false;
2503        }
2504        return s1.equals(s2);
2505    }
2506
2507    static boolean comparePermissionInfos(PermissionInfo pi1, PermissionInfo pi2) {
2508        if (pi1.icon != pi2.icon) return false;
2509        if (pi1.logo != pi2.logo) return false;
2510        if (pi1.protectionLevel != pi2.protectionLevel) return false;
2511        if (!compareStrings(pi1.name, pi2.name)) return false;
2512        if (!compareStrings(pi1.nonLocalizedLabel, pi2.nonLocalizedLabel)) return false;
2513        // We'll take care of setting this one.
2514        if (!compareStrings(pi1.packageName, pi2.packageName)) return false;
2515        // These are not currently stored in settings.
2516        //if (!compareStrings(pi1.group, pi2.group)) return false;
2517        //if (!compareStrings(pi1.nonLocalizedDescription, pi2.nonLocalizedDescription)) return false;
2518        //if (pi1.labelRes != pi2.labelRes) return false;
2519        //if (pi1.descriptionRes != pi2.descriptionRes) return false;
2520        return true;
2521    }
2522
2523    int permissionInfoFootprint(PermissionInfo info) {
2524        int size = info.name.length();
2525        if (info.nonLocalizedLabel != null) size += info.nonLocalizedLabel.length();
2526        if (info.nonLocalizedDescription != null) size += info.nonLocalizedDescription.length();
2527        return size;
2528    }
2529
2530    int calculateCurrentPermissionFootprintLocked(BasePermission tree) {
2531        int size = 0;
2532        for (BasePermission perm : mSettings.mPermissions.values()) {
2533            if (perm.uid == tree.uid) {
2534                size += perm.name.length() + permissionInfoFootprint(perm.perm.info);
2535            }
2536        }
2537        return size;
2538    }
2539
2540    void enforcePermissionCapLocked(PermissionInfo info, BasePermission tree) {
2541        // We calculate the max size of permissions defined by this uid and throw
2542        // if that plus the size of 'info' would exceed our stated maximum.
2543        if (tree.uid != Process.SYSTEM_UID) {
2544            final int curTreeSize = calculateCurrentPermissionFootprintLocked(tree);
2545            if (curTreeSize + permissionInfoFootprint(info) > MAX_PERMISSION_TREE_FOOTPRINT) {
2546                throw new SecurityException("Permission tree size cap exceeded");
2547            }
2548        }
2549    }
2550
2551    boolean addPermissionLocked(PermissionInfo info, boolean async) {
2552        if (info.labelRes == 0 && info.nonLocalizedLabel == null) {
2553            throw new SecurityException("Label must be specified in permission");
2554        }
2555        BasePermission tree = checkPermissionTreeLP(info.name);
2556        BasePermission bp = mSettings.mPermissions.get(info.name);
2557        boolean added = bp == null;
2558        boolean changed = true;
2559        int fixedLevel = PermissionInfo.fixProtectionLevel(info.protectionLevel);
2560        if (added) {
2561            enforcePermissionCapLocked(info, tree);
2562            bp = new BasePermission(info.name, tree.sourcePackage,
2563                    BasePermission.TYPE_DYNAMIC);
2564        } else if (bp.type != BasePermission.TYPE_DYNAMIC) {
2565            throw new SecurityException(
2566                    "Not allowed to modify non-dynamic permission "
2567                    + info.name);
2568        } else {
2569            if (bp.protectionLevel == fixedLevel
2570                    && bp.perm.owner.equals(tree.perm.owner)
2571                    && bp.uid == tree.uid
2572                    && comparePermissionInfos(bp.perm.info, info)) {
2573                changed = false;
2574            }
2575        }
2576        bp.protectionLevel = fixedLevel;
2577        info = new PermissionInfo(info);
2578        info.protectionLevel = fixedLevel;
2579        bp.perm = new PackageParser.Permission(tree.perm.owner, info);
2580        bp.perm.info.packageName = tree.perm.info.packageName;
2581        bp.uid = tree.uid;
2582        if (added) {
2583            mSettings.mPermissions.put(info.name, bp);
2584        }
2585        if (changed) {
2586            if (!async) {
2587                mSettings.writeLPr();
2588            } else {
2589                scheduleWriteSettingsLocked();
2590            }
2591        }
2592        return added;
2593    }
2594
2595    @Override
2596    public boolean addPermission(PermissionInfo info) {
2597        synchronized (mPackages) {
2598            return addPermissionLocked(info, false);
2599        }
2600    }
2601
2602    @Override
2603    public boolean addPermissionAsync(PermissionInfo info) {
2604        synchronized (mPackages) {
2605            return addPermissionLocked(info, true);
2606        }
2607    }
2608
2609    @Override
2610    public void removePermission(String name) {
2611        synchronized (mPackages) {
2612            checkPermissionTreeLP(name);
2613            BasePermission bp = mSettings.mPermissions.get(name);
2614            if (bp != null) {
2615                if (bp.type != BasePermission.TYPE_DYNAMIC) {
2616                    throw new SecurityException(
2617                            "Not allowed to modify non-dynamic permission "
2618                            + name);
2619                }
2620                mSettings.mPermissions.remove(name);
2621                mSettings.writeLPr();
2622            }
2623        }
2624    }
2625
2626    private static void checkGrantRevokePermissions(PackageParser.Package pkg, BasePermission bp) {
2627        int index = pkg.requestedPermissions.indexOf(bp.name);
2628        if (index == -1) {
2629            throw new SecurityException("Package " + pkg.packageName
2630                    + " has not requested permission " + bp.name);
2631        }
2632        boolean isNormal =
2633                ((bp.protectionLevel&PermissionInfo.PROTECTION_MASK_BASE)
2634                        == PermissionInfo.PROTECTION_NORMAL);
2635        boolean isDangerous =
2636                ((bp.protectionLevel&PermissionInfo.PROTECTION_MASK_BASE)
2637                        == PermissionInfo.PROTECTION_DANGEROUS);
2638        boolean isDevelopment =
2639                ((bp.protectionLevel&PermissionInfo.PROTECTION_FLAG_DEVELOPMENT) != 0);
2640
2641        if (!isNormal && !isDangerous && !isDevelopment) {
2642            throw new SecurityException("Permission " + bp.name
2643                    + " is not a changeable permission type");
2644        }
2645
2646        if (isNormal || isDangerous) {
2647            if (pkg.requestedPermissionsRequired.get(index)) {
2648                throw new SecurityException("Can't change " + bp.name
2649                        + ". It is required by the application");
2650            }
2651        }
2652    }
2653
2654    @Override
2655    public void grantPermission(String packageName, String permissionName) {
2656        mContext.enforceCallingOrSelfPermission(
2657                android.Manifest.permission.GRANT_REVOKE_PERMISSIONS, null);
2658        synchronized (mPackages) {
2659            final PackageParser.Package pkg = mPackages.get(packageName);
2660            if (pkg == null) {
2661                throw new IllegalArgumentException("Unknown package: " + packageName);
2662            }
2663            final BasePermission bp = mSettings.mPermissions.get(permissionName);
2664            if (bp == null) {
2665                throw new IllegalArgumentException("Unknown permission: " + permissionName);
2666            }
2667
2668            checkGrantRevokePermissions(pkg, bp);
2669
2670            final PackageSetting ps = (PackageSetting) pkg.mExtras;
2671            if (ps == null) {
2672                return;
2673            }
2674            final GrantedPermissions gp = (ps.sharedUser != null) ? ps.sharedUser : ps;
2675            if (gp.grantedPermissions.add(permissionName)) {
2676                if (ps.haveGids) {
2677                    gp.gids = appendInts(gp.gids, bp.gids);
2678                }
2679                mSettings.writeLPr();
2680            }
2681        }
2682    }
2683
2684    @Override
2685    public void revokePermission(String packageName, String permissionName) {
2686        int changedAppId = -1;
2687
2688        synchronized (mPackages) {
2689            final PackageParser.Package pkg = mPackages.get(packageName);
2690            if (pkg == null) {
2691                throw new IllegalArgumentException("Unknown package: " + packageName);
2692            }
2693            if (pkg.applicationInfo.uid != Binder.getCallingUid()) {
2694                mContext.enforceCallingOrSelfPermission(
2695                        android.Manifest.permission.GRANT_REVOKE_PERMISSIONS, null);
2696            }
2697            final BasePermission bp = mSettings.mPermissions.get(permissionName);
2698            if (bp == null) {
2699                throw new IllegalArgumentException("Unknown permission: " + permissionName);
2700            }
2701
2702            checkGrantRevokePermissions(pkg, bp);
2703
2704            final PackageSetting ps = (PackageSetting) pkg.mExtras;
2705            if (ps == null) {
2706                return;
2707            }
2708            final GrantedPermissions gp = (ps.sharedUser != null) ? ps.sharedUser : ps;
2709            if (gp.grantedPermissions.remove(permissionName)) {
2710                gp.grantedPermissions.remove(permissionName);
2711                if (ps.haveGids) {
2712                    gp.gids = removeInts(gp.gids, bp.gids);
2713                }
2714                mSettings.writeLPr();
2715                changedAppId = ps.appId;
2716            }
2717        }
2718
2719        if (changedAppId >= 0) {
2720            // We changed the perm on someone, kill its processes.
2721            IActivityManager am = ActivityManagerNative.getDefault();
2722            if (am != null) {
2723                final int callingUserId = UserHandle.getCallingUserId();
2724                final long ident = Binder.clearCallingIdentity();
2725                try {
2726                    //XXX we should only revoke for the calling user's app permissions,
2727                    // but for now we impact all users.
2728                    //am.killUid(UserHandle.getUid(callingUserId, changedAppId),
2729                    //        "revoke " + permissionName);
2730                    int[] users = sUserManager.getUserIds();
2731                    for (int user : users) {
2732                        am.killUid(UserHandle.getUid(user, changedAppId),
2733                                "revoke " + permissionName);
2734                    }
2735                } catch (RemoteException e) {
2736                } finally {
2737                    Binder.restoreCallingIdentity(ident);
2738                }
2739            }
2740        }
2741    }
2742
2743    @Override
2744    public boolean isProtectedBroadcast(String actionName) {
2745        synchronized (mPackages) {
2746            return mProtectedBroadcasts.contains(actionName);
2747        }
2748    }
2749
2750    @Override
2751    public int checkSignatures(String pkg1, String pkg2) {
2752        synchronized (mPackages) {
2753            final PackageParser.Package p1 = mPackages.get(pkg1);
2754            final PackageParser.Package p2 = mPackages.get(pkg2);
2755            if (p1 == null || p1.mExtras == null
2756                    || p2 == null || p2.mExtras == null) {
2757                return PackageManager.SIGNATURE_UNKNOWN_PACKAGE;
2758            }
2759            return compareSignatures(p1.mSignatures, p2.mSignatures);
2760        }
2761    }
2762
2763    @Override
2764    public int checkUidSignatures(int uid1, int uid2) {
2765        // Map to base uids.
2766        uid1 = UserHandle.getAppId(uid1);
2767        uid2 = UserHandle.getAppId(uid2);
2768        // reader
2769        synchronized (mPackages) {
2770            Signature[] s1;
2771            Signature[] s2;
2772            Object obj = mSettings.getUserIdLPr(uid1);
2773            if (obj != null) {
2774                if (obj instanceof SharedUserSetting) {
2775                    s1 = ((SharedUserSetting)obj).signatures.mSignatures;
2776                } else if (obj instanceof PackageSetting) {
2777                    s1 = ((PackageSetting)obj).signatures.mSignatures;
2778                } else {
2779                    return PackageManager.SIGNATURE_UNKNOWN_PACKAGE;
2780                }
2781            } else {
2782                return PackageManager.SIGNATURE_UNKNOWN_PACKAGE;
2783            }
2784            obj = mSettings.getUserIdLPr(uid2);
2785            if (obj != null) {
2786                if (obj instanceof SharedUserSetting) {
2787                    s2 = ((SharedUserSetting)obj).signatures.mSignatures;
2788                } else if (obj instanceof PackageSetting) {
2789                    s2 = ((PackageSetting)obj).signatures.mSignatures;
2790                } else {
2791                    return PackageManager.SIGNATURE_UNKNOWN_PACKAGE;
2792                }
2793            } else {
2794                return PackageManager.SIGNATURE_UNKNOWN_PACKAGE;
2795            }
2796            return compareSignatures(s1, s2);
2797        }
2798    }
2799
2800    /**
2801     * Compares two sets of signatures. Returns:
2802     * <br />
2803     * {@link PackageManager#SIGNATURE_NEITHER_SIGNED}: if both signature sets are null,
2804     * <br />
2805     * {@link PackageManager#SIGNATURE_FIRST_NOT_SIGNED}: if the first signature set is null,
2806     * <br />
2807     * {@link PackageManager#SIGNATURE_SECOND_NOT_SIGNED}: if the second signature set is null,
2808     * <br />
2809     * {@link PackageManager#SIGNATURE_MATCH}: if the two signature sets are identical,
2810     * <br />
2811     * {@link PackageManager#SIGNATURE_NO_MATCH}: if the two signature sets differ.
2812     */
2813    static int compareSignatures(Signature[] s1, Signature[] s2) {
2814        if (s1 == null) {
2815            return s2 == null
2816                    ? PackageManager.SIGNATURE_NEITHER_SIGNED
2817                    : PackageManager.SIGNATURE_FIRST_NOT_SIGNED;
2818        }
2819
2820        if (s2 == null) {
2821            return PackageManager.SIGNATURE_SECOND_NOT_SIGNED;
2822        }
2823
2824        if (s1.length != s2.length) {
2825            return PackageManager.SIGNATURE_NO_MATCH;
2826        }
2827
2828        // Since both signature sets are of size 1, we can compare without HashSets.
2829        if (s1.length == 1) {
2830            return s1[0].equals(s2[0]) ?
2831                    PackageManager.SIGNATURE_MATCH :
2832                    PackageManager.SIGNATURE_NO_MATCH;
2833        }
2834
2835        ArraySet<Signature> set1 = new ArraySet<Signature>();
2836        for (Signature sig : s1) {
2837            set1.add(sig);
2838        }
2839        ArraySet<Signature> set2 = new ArraySet<Signature>();
2840        for (Signature sig : s2) {
2841            set2.add(sig);
2842        }
2843        // Make sure s2 contains all signatures in s1.
2844        if (set1.equals(set2)) {
2845            return PackageManager.SIGNATURE_MATCH;
2846        }
2847        return PackageManager.SIGNATURE_NO_MATCH;
2848    }
2849
2850    /**
2851     * If the database version for this type of package (internal storage or
2852     * external storage) is less than the version where package signatures
2853     * were updated, return true.
2854     */
2855    private boolean isCompatSignatureUpdateNeeded(PackageParser.Package scannedPkg) {
2856        return (isExternal(scannedPkg) && mSettings.isExternalDatabaseVersionOlderThan(
2857                DatabaseVersion.SIGNATURE_END_ENTITY))
2858                || (!isExternal(scannedPkg) && mSettings.isInternalDatabaseVersionOlderThan(
2859                        DatabaseVersion.SIGNATURE_END_ENTITY));
2860    }
2861
2862    /**
2863     * Used for backward compatibility to make sure any packages with
2864     * certificate chains get upgraded to the new style. {@code existingSigs}
2865     * will be in the old format (since they were stored on disk from before the
2866     * system upgrade) and {@code scannedSigs} will be in the newer format.
2867     */
2868    private int compareSignaturesCompat(PackageSignatures existingSigs,
2869            PackageParser.Package scannedPkg) {
2870        if (!isCompatSignatureUpdateNeeded(scannedPkg)) {
2871            return PackageManager.SIGNATURE_NO_MATCH;
2872        }
2873
2874        ArraySet<Signature> existingSet = new ArraySet<Signature>();
2875        for (Signature sig : existingSigs.mSignatures) {
2876            existingSet.add(sig);
2877        }
2878        ArraySet<Signature> scannedCompatSet = new ArraySet<Signature>();
2879        for (Signature sig : scannedPkg.mSignatures) {
2880            try {
2881                Signature[] chainSignatures = sig.getChainSignatures();
2882                for (Signature chainSig : chainSignatures) {
2883                    scannedCompatSet.add(chainSig);
2884                }
2885            } catch (CertificateEncodingException e) {
2886                scannedCompatSet.add(sig);
2887            }
2888        }
2889        /*
2890         * Make sure the expanded scanned set contains all signatures in the
2891         * existing one.
2892         */
2893        if (scannedCompatSet.equals(existingSet)) {
2894            // Migrate the old signatures to the new scheme.
2895            existingSigs.assignSignatures(scannedPkg.mSignatures);
2896            // The new KeySets will be re-added later in the scanning process.
2897            synchronized (mPackages) {
2898                mSettings.mKeySetManagerService.removeAppKeySetDataLPw(scannedPkg.packageName);
2899            }
2900            return PackageManager.SIGNATURE_MATCH;
2901        }
2902        return PackageManager.SIGNATURE_NO_MATCH;
2903    }
2904
2905    private boolean isRecoverSignatureUpdateNeeded(PackageParser.Package scannedPkg) {
2906        if (isExternal(scannedPkg)) {
2907            return mSettings.isExternalDatabaseVersionOlderThan(
2908                    DatabaseVersion.SIGNATURE_MALFORMED_RECOVER);
2909        } else {
2910            return mSettings.isInternalDatabaseVersionOlderThan(
2911                    DatabaseVersion.SIGNATURE_MALFORMED_RECOVER);
2912        }
2913    }
2914
2915    private int compareSignaturesRecover(PackageSignatures existingSigs,
2916            PackageParser.Package scannedPkg) {
2917        if (!isRecoverSignatureUpdateNeeded(scannedPkg)) {
2918            return PackageManager.SIGNATURE_NO_MATCH;
2919        }
2920
2921        String msg = null;
2922        try {
2923            if (Signature.areEffectiveMatch(existingSigs.mSignatures, scannedPkg.mSignatures)) {
2924                logCriticalInfo(Log.INFO, "Recovered effectively matching certificates for "
2925                        + scannedPkg.packageName);
2926                return PackageManager.SIGNATURE_MATCH;
2927            }
2928        } catch (CertificateException e) {
2929            msg = e.getMessage();
2930        }
2931
2932        logCriticalInfo(Log.INFO,
2933                "Failed to recover certificates for " + scannedPkg.packageName + ": " + msg);
2934        return PackageManager.SIGNATURE_NO_MATCH;
2935    }
2936
2937    @Override
2938    public String[] getPackagesForUid(int uid) {
2939        uid = UserHandle.getAppId(uid);
2940        // reader
2941        synchronized (mPackages) {
2942            Object obj = mSettings.getUserIdLPr(uid);
2943            if (obj instanceof SharedUserSetting) {
2944                final SharedUserSetting sus = (SharedUserSetting) obj;
2945                final int N = sus.packages.size();
2946                final String[] res = new String[N];
2947                final Iterator<PackageSetting> it = sus.packages.iterator();
2948                int i = 0;
2949                while (it.hasNext()) {
2950                    res[i++] = it.next().name;
2951                }
2952                return res;
2953            } else if (obj instanceof PackageSetting) {
2954                final PackageSetting ps = (PackageSetting) obj;
2955                return new String[] { ps.name };
2956            }
2957        }
2958        return null;
2959    }
2960
2961    @Override
2962    public String getNameForUid(int uid) {
2963        // reader
2964        synchronized (mPackages) {
2965            Object obj = mSettings.getUserIdLPr(UserHandle.getAppId(uid));
2966            if (obj instanceof SharedUserSetting) {
2967                final SharedUserSetting sus = (SharedUserSetting) obj;
2968                return sus.name + ":" + sus.userId;
2969            } else if (obj instanceof PackageSetting) {
2970                final PackageSetting ps = (PackageSetting) obj;
2971                return ps.name;
2972            }
2973        }
2974        return null;
2975    }
2976
2977    @Override
2978    public int getUidForSharedUser(String sharedUserName) {
2979        if(sharedUserName == null) {
2980            return -1;
2981        }
2982        // reader
2983        synchronized (mPackages) {
2984            final SharedUserSetting suid = mSettings.getSharedUserLPw(sharedUserName, 0, 0, false);
2985            if (suid == null) {
2986                return -1;
2987            }
2988            return suid.userId;
2989        }
2990    }
2991
2992    @Override
2993    public int getFlagsForUid(int uid) {
2994        synchronized (mPackages) {
2995            Object obj = mSettings.getUserIdLPr(UserHandle.getAppId(uid));
2996            if (obj instanceof SharedUserSetting) {
2997                final SharedUserSetting sus = (SharedUserSetting) obj;
2998                return sus.pkgFlags;
2999            } else if (obj instanceof PackageSetting) {
3000                final PackageSetting ps = (PackageSetting) obj;
3001                return ps.pkgFlags;
3002            }
3003        }
3004        return 0;
3005    }
3006
3007    @Override
3008    public int getPrivateFlagsForUid(int uid) {
3009        synchronized (mPackages) {
3010            Object obj = mSettings.getUserIdLPr(UserHandle.getAppId(uid));
3011            if (obj instanceof SharedUserSetting) {
3012                final SharedUserSetting sus = (SharedUserSetting) obj;
3013                return sus.pkgPrivateFlags;
3014            } else if (obj instanceof PackageSetting) {
3015                final PackageSetting ps = (PackageSetting) obj;
3016                return ps.pkgPrivateFlags;
3017            }
3018        }
3019        return 0;
3020    }
3021
3022    @Override
3023    public boolean isUidPrivileged(int uid) {
3024        uid = UserHandle.getAppId(uid);
3025        // reader
3026        synchronized (mPackages) {
3027            Object obj = mSettings.getUserIdLPr(uid);
3028            if (obj instanceof SharedUserSetting) {
3029                final SharedUserSetting sus = (SharedUserSetting) obj;
3030                final Iterator<PackageSetting> it = sus.packages.iterator();
3031                while (it.hasNext()) {
3032                    if (it.next().isPrivileged()) {
3033                        return true;
3034                    }
3035                }
3036            } else if (obj instanceof PackageSetting) {
3037                final PackageSetting ps = (PackageSetting) obj;
3038                return ps.isPrivileged();
3039            }
3040        }
3041        return false;
3042    }
3043
3044    @Override
3045    public String[] getAppOpPermissionPackages(String permissionName) {
3046        synchronized (mPackages) {
3047            ArraySet<String> pkgs = mAppOpPermissionPackages.get(permissionName);
3048            if (pkgs == null) {
3049                return null;
3050            }
3051            return pkgs.toArray(new String[pkgs.size()]);
3052        }
3053    }
3054
3055    @Override
3056    public ResolveInfo resolveIntent(Intent intent, String resolvedType,
3057            int flags, int userId) {
3058        if (!sUserManager.exists(userId)) return null;
3059        enforceCrossUserPermission(Binder.getCallingUid(), userId, false, false, "resolve intent");
3060        List<ResolveInfo> query = queryIntentActivities(intent, resolvedType, flags, userId);
3061        return chooseBestActivity(intent, resolvedType, flags, query, userId);
3062    }
3063
3064    @Override
3065    public void setLastChosenActivity(Intent intent, String resolvedType, int flags,
3066            IntentFilter filter, int match, ComponentName activity) {
3067        final int userId = UserHandle.getCallingUserId();
3068        if (DEBUG_PREFERRED) {
3069            Log.v(TAG, "setLastChosenActivity intent=" + intent
3070                + " resolvedType=" + resolvedType
3071                + " flags=" + flags
3072                + " filter=" + filter
3073                + " match=" + match
3074                + " activity=" + activity);
3075            filter.dump(new PrintStreamPrinter(System.out), "    ");
3076        }
3077        intent.setComponent(null);
3078        List<ResolveInfo> query = queryIntentActivities(intent, resolvedType, flags, userId);
3079        // Find any earlier preferred or last chosen entries and nuke them
3080        findPreferredActivity(intent, resolvedType,
3081                flags, query, 0, false, true, false, userId);
3082        // Add the new activity as the last chosen for this filter
3083        addPreferredActivityInternal(filter, match, null, activity, false, userId,
3084                "Setting last chosen");
3085    }
3086
3087    @Override
3088    public ResolveInfo getLastChosenActivity(Intent intent, String resolvedType, int flags) {
3089        final int userId = UserHandle.getCallingUserId();
3090        if (DEBUG_PREFERRED) Log.v(TAG, "Querying last chosen activity for " + intent);
3091        List<ResolveInfo> query = queryIntentActivities(intent, resolvedType, flags, userId);
3092        return findPreferredActivity(intent, resolvedType, flags, query, 0,
3093                false, false, false, userId);
3094    }
3095
3096    private ResolveInfo chooseBestActivity(Intent intent, String resolvedType,
3097            int flags, List<ResolveInfo> query, int userId) {
3098        if (query != null) {
3099            final int N = query.size();
3100            if (N == 1) {
3101                return query.get(0);
3102            } else if (N > 1) {
3103                final boolean debug = ((intent.getFlags() & Intent.FLAG_DEBUG_LOG_RESOLUTION) != 0);
3104                // If there is more than one activity with the same priority,
3105                // then let the user decide between them.
3106                ResolveInfo r0 = query.get(0);
3107                ResolveInfo r1 = query.get(1);
3108                if (DEBUG_INTENT_MATCHING || debug) {
3109                    Slog.v(TAG, r0.activityInfo.name + "=" + r0.priority + " vs "
3110                            + r1.activityInfo.name + "=" + r1.priority);
3111                }
3112                // If the first activity has a higher priority, or a different
3113                // default, then it is always desireable to pick it.
3114                if (r0.priority != r1.priority
3115                        || r0.preferredOrder != r1.preferredOrder
3116                        || r0.isDefault != r1.isDefault) {
3117                    return query.get(0);
3118                }
3119                // If we have saved a preference for a preferred activity for
3120                // this Intent, use that.
3121                ResolveInfo ri = findPreferredActivity(intent, resolvedType,
3122                        flags, query, r0.priority, true, false, debug, userId);
3123                if (ri != null) {
3124                    return ri;
3125                }
3126                if (userId != 0) {
3127                    ri = new ResolveInfo(mResolveInfo);
3128                    ri.activityInfo = new ActivityInfo(ri.activityInfo);
3129                    ri.activityInfo.applicationInfo = new ApplicationInfo(
3130                            ri.activityInfo.applicationInfo);
3131                    ri.activityInfo.applicationInfo.uid = UserHandle.getUid(userId,
3132                            UserHandle.getAppId(ri.activityInfo.applicationInfo.uid));
3133                    return ri;
3134                }
3135                return mResolveInfo;
3136            }
3137        }
3138        return null;
3139    }
3140
3141    private ResolveInfo findPersistentPreferredActivityLP(Intent intent, String resolvedType,
3142            int flags, List<ResolveInfo> query, boolean debug, int userId) {
3143        final int N = query.size();
3144        PersistentPreferredIntentResolver ppir = mSettings.mPersistentPreferredActivities
3145                .get(userId);
3146        // Get the list of persistent preferred activities that handle the intent
3147        if (DEBUG_PREFERRED || debug) Slog.v(TAG, "Looking for presistent preferred activities...");
3148        List<PersistentPreferredActivity> pprefs = ppir != null
3149                ? ppir.queryIntent(intent, resolvedType,
3150                        (flags & PackageManager.MATCH_DEFAULT_ONLY) != 0, userId)
3151                : null;
3152        if (pprefs != null && pprefs.size() > 0) {
3153            final int M = pprefs.size();
3154            for (int i=0; i<M; i++) {
3155                final PersistentPreferredActivity ppa = pprefs.get(i);
3156                if (DEBUG_PREFERRED || debug) {
3157                    Slog.v(TAG, "Checking PersistentPreferredActivity ds="
3158                            + (ppa.countDataSchemes() > 0 ? ppa.getDataScheme(0) : "<none>")
3159                            + "\n  component=" + ppa.mComponent);
3160                    ppa.dump(new LogPrinter(Log.VERBOSE, TAG, Log.LOG_ID_SYSTEM), "  ");
3161                }
3162                final ActivityInfo ai = getActivityInfo(ppa.mComponent,
3163                        flags | PackageManager.GET_DISABLED_COMPONENTS, userId);
3164                if (DEBUG_PREFERRED || debug) {
3165                    Slog.v(TAG, "Found persistent preferred activity:");
3166                    if (ai != null) {
3167                        ai.dump(new LogPrinter(Log.VERBOSE, TAG, Log.LOG_ID_SYSTEM), "  ");
3168                    } else {
3169                        Slog.v(TAG, "  null");
3170                    }
3171                }
3172                if (ai == null) {
3173                    // This previously registered persistent preferred activity
3174                    // component is no longer known. Ignore it and do NOT remove it.
3175                    continue;
3176                }
3177                for (int j=0; j<N; j++) {
3178                    final ResolveInfo ri = query.get(j);
3179                    if (!ri.activityInfo.applicationInfo.packageName
3180                            .equals(ai.applicationInfo.packageName)) {
3181                        continue;
3182                    }
3183                    if (!ri.activityInfo.name.equals(ai.name)) {
3184                        continue;
3185                    }
3186                    //  Found a persistent preference that can handle the intent.
3187                    if (DEBUG_PREFERRED || debug) {
3188                        Slog.v(TAG, "Returning persistent preferred activity: " +
3189                                ri.activityInfo.packageName + "/" + ri.activityInfo.name);
3190                    }
3191                    return ri;
3192                }
3193            }
3194        }
3195        return null;
3196    }
3197
3198    ResolveInfo findPreferredActivity(Intent intent, String resolvedType, int flags,
3199            List<ResolveInfo> query, int priority, boolean always,
3200            boolean removeMatches, boolean debug, int userId) {
3201        if (!sUserManager.exists(userId)) return null;
3202        // writer
3203        synchronized (mPackages) {
3204            if (intent.getSelector() != null) {
3205                intent = intent.getSelector();
3206            }
3207            if (DEBUG_PREFERRED) intent.addFlags(Intent.FLAG_DEBUG_LOG_RESOLUTION);
3208
3209            // Try to find a matching persistent preferred activity.
3210            ResolveInfo pri = findPersistentPreferredActivityLP(intent, resolvedType, flags, query,
3211                    debug, userId);
3212
3213            // If a persistent preferred activity matched, use it.
3214            if (pri != null) {
3215                return pri;
3216            }
3217
3218            PreferredIntentResolver pir = mSettings.mPreferredActivities.get(userId);
3219            // Get the list of preferred activities that handle the intent
3220            if (DEBUG_PREFERRED || debug) Slog.v(TAG, "Looking for preferred activities...");
3221            List<PreferredActivity> prefs = pir != null
3222                    ? pir.queryIntent(intent, resolvedType,
3223                            (flags & PackageManager.MATCH_DEFAULT_ONLY) != 0, userId)
3224                    : null;
3225            if (prefs != null && prefs.size() > 0) {
3226                boolean changed = false;
3227                try {
3228                    // First figure out how good the original match set is.
3229                    // We will only allow preferred activities that came
3230                    // from the same match quality.
3231                    int match = 0;
3232
3233                    if (DEBUG_PREFERRED || debug) Slog.v(TAG, "Figuring out best match...");
3234
3235                    final int N = query.size();
3236                    for (int j=0; j<N; j++) {
3237                        final ResolveInfo ri = query.get(j);
3238                        if (DEBUG_PREFERRED || debug) Slog.v(TAG, "Match for " + ri.activityInfo
3239                                + ": 0x" + Integer.toHexString(match));
3240                        if (ri.match > match) {
3241                            match = ri.match;
3242                        }
3243                    }
3244
3245                    if (DEBUG_PREFERRED || debug) Slog.v(TAG, "Best match: 0x"
3246                            + Integer.toHexString(match));
3247
3248                    match &= IntentFilter.MATCH_CATEGORY_MASK;
3249                    final int M = prefs.size();
3250                    for (int i=0; i<M; i++) {
3251                        final PreferredActivity pa = prefs.get(i);
3252                        if (DEBUG_PREFERRED || debug) {
3253                            Slog.v(TAG, "Checking PreferredActivity ds="
3254                                    + (pa.countDataSchemes() > 0 ? pa.getDataScheme(0) : "<none>")
3255                                    + "\n  component=" + pa.mPref.mComponent);
3256                            pa.dump(new LogPrinter(Log.VERBOSE, TAG, Log.LOG_ID_SYSTEM), "  ");
3257                        }
3258                        if (pa.mPref.mMatch != match) {
3259                            if (DEBUG_PREFERRED || debug) Slog.v(TAG, "Skipping bad match "
3260                                    + Integer.toHexString(pa.mPref.mMatch));
3261                            continue;
3262                        }
3263                        // If it's not an "always" type preferred activity and that's what we're
3264                        // looking for, skip it.
3265                        if (always && !pa.mPref.mAlways) {
3266                            if (DEBUG_PREFERRED || debug) Slog.v(TAG, "Skipping mAlways=false entry");
3267                            continue;
3268                        }
3269                        final ActivityInfo ai = getActivityInfo(pa.mPref.mComponent,
3270                                flags | PackageManager.GET_DISABLED_COMPONENTS, userId);
3271                        if (DEBUG_PREFERRED || debug) {
3272                            Slog.v(TAG, "Found preferred activity:");
3273                            if (ai != null) {
3274                                ai.dump(new LogPrinter(Log.VERBOSE, TAG, Log.LOG_ID_SYSTEM), "  ");
3275                            } else {
3276                                Slog.v(TAG, "  null");
3277                            }
3278                        }
3279                        if (ai == null) {
3280                            // This previously registered preferred activity
3281                            // component is no longer known.  Most likely an update
3282                            // to the app was installed and in the new version this
3283                            // component no longer exists.  Clean it up by removing
3284                            // it from the preferred activities list, and skip it.
3285                            Slog.w(TAG, "Removing dangling preferred activity: "
3286                                    + pa.mPref.mComponent);
3287                            pir.removeFilter(pa);
3288                            changed = true;
3289                            continue;
3290                        }
3291                        for (int j=0; j<N; j++) {
3292                            final ResolveInfo ri = query.get(j);
3293                            if (!ri.activityInfo.applicationInfo.packageName
3294                                    .equals(ai.applicationInfo.packageName)) {
3295                                continue;
3296                            }
3297                            if (!ri.activityInfo.name.equals(ai.name)) {
3298                                continue;
3299                            }
3300
3301                            if (removeMatches) {
3302                                pir.removeFilter(pa);
3303                                changed = true;
3304                                if (DEBUG_PREFERRED) {
3305                                    Slog.v(TAG, "Removing match " + pa.mPref.mComponent);
3306                                }
3307                                break;
3308                            }
3309
3310                            // Okay we found a previously set preferred or last chosen app.
3311                            // If the result set is different from when this
3312                            // was created, we need to clear it and re-ask the
3313                            // user their preference, if we're looking for an "always" type entry.
3314                            if (always && !pa.mPref.sameSet(query)) {
3315                                Slog.i(TAG, "Result set changed, dropping preferred activity for "
3316                                        + intent + " type " + resolvedType);
3317                                if (DEBUG_PREFERRED) {
3318                                    Slog.v(TAG, "Removing preferred activity since set changed "
3319                                            + pa.mPref.mComponent);
3320                                }
3321                                pir.removeFilter(pa);
3322                                // Re-add the filter as a "last chosen" entry (!always)
3323                                PreferredActivity lastChosen = new PreferredActivity(
3324                                        pa, pa.mPref.mMatch, null, pa.mPref.mComponent, false);
3325                                pir.addFilter(lastChosen);
3326                                changed = true;
3327                                return null;
3328                            }
3329
3330                            // Yay! Either the set matched or we're looking for the last chosen
3331                            if (DEBUG_PREFERRED || debug) Slog.v(TAG, "Returning preferred activity: "
3332                                    + ri.activityInfo.packageName + "/" + ri.activityInfo.name);
3333                            return ri;
3334                        }
3335                    }
3336                } finally {
3337                    if (changed) {
3338                        if (DEBUG_PREFERRED) {
3339                            Slog.v(TAG, "Preferred activity bookkeeping changed; writing restrictions");
3340                        }
3341                        scheduleWritePackageRestrictionsLocked(userId);
3342                    }
3343                }
3344            }
3345        }
3346        if (DEBUG_PREFERRED || debug) Slog.v(TAG, "No preferred activity to return");
3347        return null;
3348    }
3349
3350    /*
3351     * Returns if intent can be forwarded from the sourceUserId to the targetUserId
3352     */
3353    @Override
3354    public boolean canForwardTo(Intent intent, String resolvedType, int sourceUserId,
3355            int targetUserId) {
3356        mContext.enforceCallingOrSelfPermission(
3357                android.Manifest.permission.INTERACT_ACROSS_USERS_FULL, null);
3358        List<CrossProfileIntentFilter> matches =
3359                getMatchingCrossProfileIntentFilters(intent, resolvedType, sourceUserId);
3360        if (matches != null) {
3361            int size = matches.size();
3362            for (int i = 0; i < size; i++) {
3363                if (matches.get(i).getTargetUserId() == targetUserId) return true;
3364            }
3365        }
3366        return false;
3367    }
3368
3369    private List<CrossProfileIntentFilter> getMatchingCrossProfileIntentFilters(Intent intent,
3370            String resolvedType, int userId) {
3371        CrossProfileIntentResolver resolver = mSettings.mCrossProfileIntentResolvers.get(userId);
3372        if (resolver != null) {
3373            return resolver.queryIntent(intent, resolvedType, false, userId);
3374        }
3375        return null;
3376    }
3377
3378    @Override
3379    public List<ResolveInfo> queryIntentActivities(Intent intent,
3380            String resolvedType, int flags, int userId) {
3381        if (!sUserManager.exists(userId)) return Collections.emptyList();
3382        enforceCrossUserPermission(Binder.getCallingUid(), userId, false, false, "query intent activities");
3383        ComponentName comp = intent.getComponent();
3384        if (comp == null) {
3385            if (intent.getSelector() != null) {
3386                intent = intent.getSelector();
3387                comp = intent.getComponent();
3388            }
3389        }
3390
3391        if (comp != null) {
3392            final List<ResolveInfo> list = new ArrayList<ResolveInfo>(1);
3393            final ActivityInfo ai = getActivityInfo(comp, flags, userId);
3394            if (ai != null) {
3395                final ResolveInfo ri = new ResolveInfo();
3396                ri.activityInfo = ai;
3397                list.add(ri);
3398            }
3399            return list;
3400        }
3401
3402        // reader
3403        synchronized (mPackages) {
3404            final String pkgName = intent.getPackage();
3405            if (pkgName == null) {
3406                List<CrossProfileIntentFilter> matchingFilters =
3407                        getMatchingCrossProfileIntentFilters(intent, resolvedType, userId);
3408                // Check for results that need to skip the current profile.
3409                ResolveInfo resolveInfo  = querySkipCurrentProfileIntents(matchingFilters, intent,
3410                        resolvedType, flags, userId);
3411                if (resolveInfo != null) {
3412                    List<ResolveInfo> result = new ArrayList<ResolveInfo>(1);
3413                    result.add(resolveInfo);
3414                    return result;
3415                }
3416                // Check for cross profile results.
3417                resolveInfo = queryCrossProfileIntents(
3418                        matchingFilters, intent, resolvedType, flags, userId);
3419
3420                // Check for results in the current profile.
3421                List<ResolveInfo> result = mActivities.queryIntent(
3422                        intent, resolvedType, flags, userId);
3423                if (resolveInfo != null) {
3424                    result.add(resolveInfo);
3425                    Collections.sort(result, mResolvePrioritySorter);
3426                }
3427                return result;
3428            }
3429            final PackageParser.Package pkg = mPackages.get(pkgName);
3430            if (pkg != null) {
3431                return mActivities.queryIntentForPackage(intent, resolvedType, flags,
3432                        pkg.activities, userId);
3433            }
3434            return new ArrayList<ResolveInfo>();
3435        }
3436    }
3437
3438    private ResolveInfo querySkipCurrentProfileIntents(
3439            List<CrossProfileIntentFilter> matchingFilters, Intent intent, String resolvedType,
3440            int flags, int sourceUserId) {
3441        if (matchingFilters != null) {
3442            int size = matchingFilters.size();
3443            for (int i = 0; i < size; i ++) {
3444                CrossProfileIntentFilter filter = matchingFilters.get(i);
3445                if ((filter.getFlags() & PackageManager.SKIP_CURRENT_PROFILE) != 0) {
3446                    // Checking if there are activities in the target user that can handle the
3447                    // intent.
3448                    ResolveInfo resolveInfo = checkTargetCanHandle(filter, intent, resolvedType,
3449                            flags, sourceUserId);
3450                    if (resolveInfo != null) {
3451                        return resolveInfo;
3452                    }
3453                }
3454            }
3455        }
3456        return null;
3457    }
3458
3459    // Return matching ResolveInfo if any for skip current profile intent filters.
3460    private ResolveInfo queryCrossProfileIntents(
3461            List<CrossProfileIntentFilter> matchingFilters, Intent intent, String resolvedType,
3462            int flags, int sourceUserId) {
3463        if (matchingFilters != null) {
3464            // Two {@link CrossProfileIntentFilter}s can have the same targetUserId and
3465            // match the same intent. For performance reasons, it is better not to
3466            // run queryIntent twice for the same userId
3467            SparseBooleanArray alreadyTriedUserIds = new SparseBooleanArray();
3468            int size = matchingFilters.size();
3469            for (int i = 0; i < size; i++) {
3470                CrossProfileIntentFilter filter = matchingFilters.get(i);
3471                int targetUserId = filter.getTargetUserId();
3472                if ((filter.getFlags() & PackageManager.SKIP_CURRENT_PROFILE) == 0
3473                        && !alreadyTriedUserIds.get(targetUserId)) {
3474                    // Checking if there are activities in the target user that can handle the
3475                    // intent.
3476                    ResolveInfo resolveInfo = checkTargetCanHandle(filter, intent, resolvedType,
3477                            flags, sourceUserId);
3478                    if (resolveInfo != null) return resolveInfo;
3479                    alreadyTriedUserIds.put(targetUserId, true);
3480                }
3481            }
3482        }
3483        return null;
3484    }
3485
3486    private ResolveInfo checkTargetCanHandle(CrossProfileIntentFilter filter, Intent intent,
3487            String resolvedType, int flags, int sourceUserId) {
3488        List<ResolveInfo> resultTargetUser = mActivities.queryIntent(intent,
3489                resolvedType, flags, filter.getTargetUserId());
3490        if (resultTargetUser != null && !resultTargetUser.isEmpty()) {
3491            return createForwardingResolveInfo(filter, sourceUserId, filter.getTargetUserId());
3492        }
3493        return null;
3494    }
3495
3496    private ResolveInfo createForwardingResolveInfo(IntentFilter filter,
3497            int sourceUserId, int targetUserId) {
3498        ResolveInfo forwardingResolveInfo = new ResolveInfo();
3499        String className;
3500        if (targetUserId == UserHandle.USER_OWNER) {
3501            className = FORWARD_INTENT_TO_USER_OWNER;
3502        } else {
3503            className = FORWARD_INTENT_TO_MANAGED_PROFILE;
3504        }
3505        ComponentName forwardingActivityComponentName = new ComponentName(
3506                mAndroidApplication.packageName, className);
3507        ActivityInfo forwardingActivityInfo = getActivityInfo(forwardingActivityComponentName, 0,
3508                sourceUserId);
3509        if (targetUserId == UserHandle.USER_OWNER) {
3510            forwardingActivityInfo.showUserIcon = UserHandle.USER_OWNER;
3511            forwardingResolveInfo.noResourceId = true;
3512        }
3513        forwardingResolveInfo.activityInfo = forwardingActivityInfo;
3514        forwardingResolveInfo.priority = 0;
3515        forwardingResolveInfo.preferredOrder = 0;
3516        forwardingResolveInfo.match = 0;
3517        forwardingResolveInfo.isDefault = true;
3518        forwardingResolveInfo.filter = filter;
3519        forwardingResolveInfo.targetUserId = targetUserId;
3520        return forwardingResolveInfo;
3521    }
3522
3523    @Override
3524    public List<ResolveInfo> queryIntentActivityOptions(ComponentName caller,
3525            Intent[] specifics, String[] specificTypes, Intent intent,
3526            String resolvedType, int flags, int userId) {
3527        if (!sUserManager.exists(userId)) return Collections.emptyList();
3528        enforceCrossUserPermission(Binder.getCallingUid(), userId, false,
3529                false, "query intent activity options");
3530        final String resultsAction = intent.getAction();
3531
3532        List<ResolveInfo> results = queryIntentActivities(intent, resolvedType, flags
3533                | PackageManager.GET_RESOLVED_FILTER, userId);
3534
3535        if (DEBUG_INTENT_MATCHING) {
3536            Log.v(TAG, "Query " + intent + ": " + results);
3537        }
3538
3539        int specificsPos = 0;
3540        int N;
3541
3542        // todo: note that the algorithm used here is O(N^2).  This
3543        // isn't a problem in our current environment, but if we start running
3544        // into situations where we have more than 5 or 10 matches then this
3545        // should probably be changed to something smarter...
3546
3547        // First we go through and resolve each of the specific items
3548        // that were supplied, taking care of removing any corresponding
3549        // duplicate items in the generic resolve list.
3550        if (specifics != null) {
3551            for (int i=0; i<specifics.length; i++) {
3552                final Intent sintent = specifics[i];
3553                if (sintent == null) {
3554                    continue;
3555                }
3556
3557                if (DEBUG_INTENT_MATCHING) {
3558                    Log.v(TAG, "Specific #" + i + ": " + sintent);
3559                }
3560
3561                String action = sintent.getAction();
3562                if (resultsAction != null && resultsAction.equals(action)) {
3563                    // If this action was explicitly requested, then don't
3564                    // remove things that have it.
3565                    action = null;
3566                }
3567
3568                ResolveInfo ri = null;
3569                ActivityInfo ai = null;
3570
3571                ComponentName comp = sintent.getComponent();
3572                if (comp == null) {
3573                    ri = resolveIntent(
3574                        sintent,
3575                        specificTypes != null ? specificTypes[i] : null,
3576                            flags, userId);
3577                    if (ri == null) {
3578                        continue;
3579                    }
3580                    if (ri == mResolveInfo) {
3581                        // ACK!  Must do something better with this.
3582                    }
3583                    ai = ri.activityInfo;
3584                    comp = new ComponentName(ai.applicationInfo.packageName,
3585                            ai.name);
3586                } else {
3587                    ai = getActivityInfo(comp, flags, userId);
3588                    if (ai == null) {
3589                        continue;
3590                    }
3591                }
3592
3593                // Look for any generic query activities that are duplicates
3594                // of this specific one, and remove them from the results.
3595                if (DEBUG_INTENT_MATCHING) Log.v(TAG, "Specific #" + i + ": " + ai);
3596                N = results.size();
3597                int j;
3598                for (j=specificsPos; j<N; j++) {
3599                    ResolveInfo sri = results.get(j);
3600                    if ((sri.activityInfo.name.equals(comp.getClassName())
3601                            && sri.activityInfo.applicationInfo.packageName.equals(
3602                                    comp.getPackageName()))
3603                        || (action != null && sri.filter.matchAction(action))) {
3604                        results.remove(j);
3605                        if (DEBUG_INTENT_MATCHING) Log.v(
3606                            TAG, "Removing duplicate item from " + j
3607                            + " due to specific " + specificsPos);
3608                        if (ri == null) {
3609                            ri = sri;
3610                        }
3611                        j--;
3612                        N--;
3613                    }
3614                }
3615
3616                // Add this specific item to its proper place.
3617                if (ri == null) {
3618                    ri = new ResolveInfo();
3619                    ri.activityInfo = ai;
3620                }
3621                results.add(specificsPos, ri);
3622                ri.specificIndex = i;
3623                specificsPos++;
3624            }
3625        }
3626
3627        // Now we go through the remaining generic results and remove any
3628        // duplicate actions that are found here.
3629        N = results.size();
3630        for (int i=specificsPos; i<N-1; i++) {
3631            final ResolveInfo rii = results.get(i);
3632            if (rii.filter == null) {
3633                continue;
3634            }
3635
3636            // Iterate over all of the actions of this result's intent
3637            // filter...  typically this should be just one.
3638            final Iterator<String> it = rii.filter.actionsIterator();
3639            if (it == null) {
3640                continue;
3641            }
3642            while (it.hasNext()) {
3643                final String action = it.next();
3644                if (resultsAction != null && resultsAction.equals(action)) {
3645                    // If this action was explicitly requested, then don't
3646                    // remove things that have it.
3647                    continue;
3648                }
3649                for (int j=i+1; j<N; j++) {
3650                    final ResolveInfo rij = results.get(j);
3651                    if (rij.filter != null && rij.filter.hasAction(action)) {
3652                        results.remove(j);
3653                        if (DEBUG_INTENT_MATCHING) Log.v(
3654                            TAG, "Removing duplicate item from " + j
3655                            + " due to action " + action + " at " + i);
3656                        j--;
3657                        N--;
3658                    }
3659                }
3660            }
3661
3662            // If the caller didn't request filter information, drop it now
3663            // so we don't have to marshall/unmarshall it.
3664            if ((flags&PackageManager.GET_RESOLVED_FILTER) == 0) {
3665                rii.filter = null;
3666            }
3667        }
3668
3669        // Filter out the caller activity if so requested.
3670        if (caller != null) {
3671            N = results.size();
3672            for (int i=0; i<N; i++) {
3673                ActivityInfo ainfo = results.get(i).activityInfo;
3674                if (caller.getPackageName().equals(ainfo.applicationInfo.packageName)
3675                        && caller.getClassName().equals(ainfo.name)) {
3676                    results.remove(i);
3677                    break;
3678                }
3679            }
3680        }
3681
3682        // If the caller didn't request filter information,
3683        // drop them now so we don't have to
3684        // marshall/unmarshall it.
3685        if ((flags&PackageManager.GET_RESOLVED_FILTER) == 0) {
3686            N = results.size();
3687            for (int i=0; i<N; i++) {
3688                results.get(i).filter = null;
3689            }
3690        }
3691
3692        if (DEBUG_INTENT_MATCHING) Log.v(TAG, "Result: " + results);
3693        return results;
3694    }
3695
3696    @Override
3697    public List<ResolveInfo> queryIntentReceivers(Intent intent, String resolvedType, int flags,
3698            int userId) {
3699        if (!sUserManager.exists(userId)) return Collections.emptyList();
3700        ComponentName comp = intent.getComponent();
3701        if (comp == null) {
3702            if (intent.getSelector() != null) {
3703                intent = intent.getSelector();
3704                comp = intent.getComponent();
3705            }
3706        }
3707        if (comp != null) {
3708            List<ResolveInfo> list = new ArrayList<ResolveInfo>(1);
3709            ActivityInfo ai = getReceiverInfo(comp, flags, userId);
3710            if (ai != null) {
3711                ResolveInfo ri = new ResolveInfo();
3712                ri.activityInfo = ai;
3713                list.add(ri);
3714            }
3715            return list;
3716        }
3717
3718        // reader
3719        synchronized (mPackages) {
3720            String pkgName = intent.getPackage();
3721            if (pkgName == null) {
3722                return mReceivers.queryIntent(intent, resolvedType, flags, userId);
3723            }
3724            final PackageParser.Package pkg = mPackages.get(pkgName);
3725            if (pkg != null) {
3726                return mReceivers.queryIntentForPackage(intent, resolvedType, flags, pkg.receivers,
3727                        userId);
3728            }
3729            return null;
3730        }
3731    }
3732
3733    @Override
3734    public ResolveInfo resolveService(Intent intent, String resolvedType, int flags, int userId) {
3735        List<ResolveInfo> query = queryIntentServices(intent, resolvedType, flags, userId);
3736        if (!sUserManager.exists(userId)) return null;
3737        if (query != null) {
3738            if (query.size() >= 1) {
3739                // If there is more than one service with the same priority,
3740                // just arbitrarily pick the first one.
3741                return query.get(0);
3742            }
3743        }
3744        return null;
3745    }
3746
3747    @Override
3748    public List<ResolveInfo> queryIntentServices(Intent intent, String resolvedType, int flags,
3749            int userId) {
3750        if (!sUserManager.exists(userId)) return Collections.emptyList();
3751        ComponentName comp = intent.getComponent();
3752        if (comp == null) {
3753            if (intent.getSelector() != null) {
3754                intent = intent.getSelector();
3755                comp = intent.getComponent();
3756            }
3757        }
3758        if (comp != null) {
3759            final List<ResolveInfo> list = new ArrayList<ResolveInfo>(1);
3760            final ServiceInfo si = getServiceInfo(comp, flags, userId);
3761            if (si != null) {
3762                final ResolveInfo ri = new ResolveInfo();
3763                ri.serviceInfo = si;
3764                list.add(ri);
3765            }
3766            return list;
3767        }
3768
3769        // reader
3770        synchronized (mPackages) {
3771            String pkgName = intent.getPackage();
3772            if (pkgName == null) {
3773                return mServices.queryIntent(intent, resolvedType, flags, userId);
3774            }
3775            final PackageParser.Package pkg = mPackages.get(pkgName);
3776            if (pkg != null) {
3777                return mServices.queryIntentForPackage(intent, resolvedType, flags, pkg.services,
3778                        userId);
3779            }
3780            return null;
3781        }
3782    }
3783
3784    @Override
3785    public List<ResolveInfo> queryIntentContentProviders(
3786            Intent intent, String resolvedType, int flags, int userId) {
3787        if (!sUserManager.exists(userId)) return Collections.emptyList();
3788        ComponentName comp = intent.getComponent();
3789        if (comp == null) {
3790            if (intent.getSelector() != null) {
3791                intent = intent.getSelector();
3792                comp = intent.getComponent();
3793            }
3794        }
3795        if (comp != null) {
3796            final List<ResolveInfo> list = new ArrayList<ResolveInfo>(1);
3797            final ProviderInfo pi = getProviderInfo(comp, flags, userId);
3798            if (pi != null) {
3799                final ResolveInfo ri = new ResolveInfo();
3800                ri.providerInfo = pi;
3801                list.add(ri);
3802            }
3803            return list;
3804        }
3805
3806        // reader
3807        synchronized (mPackages) {
3808            String pkgName = intent.getPackage();
3809            if (pkgName == null) {
3810                return mProviders.queryIntent(intent, resolvedType, flags, userId);
3811            }
3812            final PackageParser.Package pkg = mPackages.get(pkgName);
3813            if (pkg != null) {
3814                return mProviders.queryIntentForPackage(
3815                        intent, resolvedType, flags, pkg.providers, userId);
3816            }
3817            return null;
3818        }
3819    }
3820
3821    @Override
3822    public ParceledListSlice<PackageInfo> getInstalledPackages(int flags, int userId) {
3823        final boolean listUninstalled = (flags & PackageManager.GET_UNINSTALLED_PACKAGES) != 0;
3824
3825        enforceCrossUserPermission(Binder.getCallingUid(), userId, true, false, "get installed packages");
3826
3827        // writer
3828        synchronized (mPackages) {
3829            ArrayList<PackageInfo> list;
3830            if (listUninstalled) {
3831                list = new ArrayList<PackageInfo>(mSettings.mPackages.size());
3832                for (PackageSetting ps : mSettings.mPackages.values()) {
3833                    PackageInfo pi;
3834                    if (ps.pkg != null) {
3835                        pi = generatePackageInfo(ps.pkg, flags, userId);
3836                    } else {
3837                        pi = generatePackageInfoFromSettingsLPw(ps.name, flags, userId);
3838                    }
3839                    if (pi != null) {
3840                        list.add(pi);
3841                    }
3842                }
3843            } else {
3844                list = new ArrayList<PackageInfo>(mPackages.size());
3845                for (PackageParser.Package p : mPackages.values()) {
3846                    PackageInfo pi = generatePackageInfo(p, flags, userId);
3847                    if (pi != null) {
3848                        list.add(pi);
3849                    }
3850                }
3851            }
3852
3853            return new ParceledListSlice<PackageInfo>(list);
3854        }
3855    }
3856
3857    private void addPackageHoldingPermissions(ArrayList<PackageInfo> list, PackageSetting ps,
3858            String[] permissions, boolean[] tmp, int flags, int userId) {
3859        int numMatch = 0;
3860        final GrantedPermissions gp = ps.sharedUser != null ? ps.sharedUser : ps;
3861        for (int i=0; i<permissions.length; i++) {
3862            if (gp.grantedPermissions.contains(permissions[i])) {
3863                tmp[i] = true;
3864                numMatch++;
3865            } else {
3866                tmp[i] = false;
3867            }
3868        }
3869        if (numMatch == 0) {
3870            return;
3871        }
3872        PackageInfo pi;
3873        if (ps.pkg != null) {
3874            pi = generatePackageInfo(ps.pkg, flags, userId);
3875        } else {
3876            pi = generatePackageInfoFromSettingsLPw(ps.name, flags, userId);
3877        }
3878        // The above might return null in cases of uninstalled apps or install-state
3879        // skew across users/profiles.
3880        if (pi != null) {
3881            if ((flags&PackageManager.GET_PERMISSIONS) == 0) {
3882                if (numMatch == permissions.length) {
3883                    pi.requestedPermissions = permissions;
3884                } else {
3885                    pi.requestedPermissions = new String[numMatch];
3886                    numMatch = 0;
3887                    for (int i=0; i<permissions.length; i++) {
3888                        if (tmp[i]) {
3889                            pi.requestedPermissions[numMatch] = permissions[i];
3890                            numMatch++;
3891                        }
3892                    }
3893                }
3894            }
3895            list.add(pi);
3896        }
3897    }
3898
3899    @Override
3900    public ParceledListSlice<PackageInfo> getPackagesHoldingPermissions(
3901            String[] permissions, int flags, int userId) {
3902        if (!sUserManager.exists(userId)) return null;
3903        final boolean listUninstalled = (flags & PackageManager.GET_UNINSTALLED_PACKAGES) != 0;
3904
3905        // writer
3906        synchronized (mPackages) {
3907            ArrayList<PackageInfo> list = new ArrayList<PackageInfo>();
3908            boolean[] tmpBools = new boolean[permissions.length];
3909            if (listUninstalled) {
3910                for (PackageSetting ps : mSettings.mPackages.values()) {
3911                    addPackageHoldingPermissions(list, ps, permissions, tmpBools, flags, userId);
3912                }
3913            } else {
3914                for (PackageParser.Package pkg : mPackages.values()) {
3915                    PackageSetting ps = (PackageSetting)pkg.mExtras;
3916                    if (ps != null) {
3917                        addPackageHoldingPermissions(list, ps, permissions, tmpBools, flags,
3918                                userId);
3919                    }
3920                }
3921            }
3922
3923            return new ParceledListSlice<PackageInfo>(list);
3924        }
3925    }
3926
3927    @Override
3928    public ParceledListSlice<ApplicationInfo> getInstalledApplications(int flags, int userId) {
3929        if (!sUserManager.exists(userId)) return null;
3930        final boolean listUninstalled = (flags & PackageManager.GET_UNINSTALLED_PACKAGES) != 0;
3931
3932        // writer
3933        synchronized (mPackages) {
3934            ArrayList<ApplicationInfo> list;
3935            if (listUninstalled) {
3936                list = new ArrayList<ApplicationInfo>(mSettings.mPackages.size());
3937                for (PackageSetting ps : mSettings.mPackages.values()) {
3938                    ApplicationInfo ai;
3939                    if (ps.pkg != null) {
3940                        ai = PackageParser.generateApplicationInfo(ps.pkg, flags,
3941                                ps.readUserState(userId), userId);
3942                    } else {
3943                        ai = generateApplicationInfoFromSettingsLPw(ps.name, flags, userId);
3944                    }
3945                    if (ai != null) {
3946                        list.add(ai);
3947                    }
3948                }
3949            } else {
3950                list = new ArrayList<ApplicationInfo>(mPackages.size());
3951                for (PackageParser.Package p : mPackages.values()) {
3952                    if (p.mExtras != null) {
3953                        ApplicationInfo ai = PackageParser.generateApplicationInfo(p, flags,
3954                                ((PackageSetting)p.mExtras).readUserState(userId), userId);
3955                        if (ai != null) {
3956                            list.add(ai);
3957                        }
3958                    }
3959                }
3960            }
3961
3962            return new ParceledListSlice<ApplicationInfo>(list);
3963        }
3964    }
3965
3966    public List<ApplicationInfo> getPersistentApplications(int flags) {
3967        final ArrayList<ApplicationInfo> finalList = new ArrayList<ApplicationInfo>();
3968
3969        // reader
3970        synchronized (mPackages) {
3971            final Iterator<PackageParser.Package> i = mPackages.values().iterator();
3972            final int userId = UserHandle.getCallingUserId();
3973            while (i.hasNext()) {
3974                final PackageParser.Package p = i.next();
3975                if (p.applicationInfo != null
3976                        && (p.applicationInfo.flags&ApplicationInfo.FLAG_PERSISTENT) != 0
3977                        && (!mSafeMode || isSystemApp(p))) {
3978                    PackageSetting ps = mSettings.mPackages.get(p.packageName);
3979                    if (ps != null) {
3980                        ApplicationInfo ai = PackageParser.generateApplicationInfo(p, flags,
3981                                ps.readUserState(userId), userId);
3982                        if (ai != null) {
3983                            finalList.add(ai);
3984                        }
3985                    }
3986                }
3987            }
3988        }
3989
3990        return finalList;
3991    }
3992
3993    @Override
3994    public ProviderInfo resolveContentProvider(String name, int flags, int userId) {
3995        if (!sUserManager.exists(userId)) return null;
3996        // reader
3997        synchronized (mPackages) {
3998            final PackageParser.Provider provider = mProvidersByAuthority.get(name);
3999            PackageSetting ps = provider != null
4000                    ? mSettings.mPackages.get(provider.owner.packageName)
4001                    : null;
4002            return ps != null
4003                    && mSettings.isEnabledLPr(provider.info, flags, userId)
4004                    && (!mSafeMode || (provider.info.applicationInfo.flags
4005                            &ApplicationInfo.FLAG_SYSTEM) != 0)
4006                    ? PackageParser.generateProviderInfo(provider, flags,
4007                            ps.readUserState(userId), userId)
4008                    : null;
4009        }
4010    }
4011
4012    /**
4013     * @deprecated
4014     */
4015    @Deprecated
4016    public void querySyncProviders(List<String> outNames, List<ProviderInfo> outInfo) {
4017        // reader
4018        synchronized (mPackages) {
4019            final Iterator<Map.Entry<String, PackageParser.Provider>> i = mProvidersByAuthority
4020                    .entrySet().iterator();
4021            final int userId = UserHandle.getCallingUserId();
4022            while (i.hasNext()) {
4023                Map.Entry<String, PackageParser.Provider> entry = i.next();
4024                PackageParser.Provider p = entry.getValue();
4025                PackageSetting ps = mSettings.mPackages.get(p.owner.packageName);
4026
4027                if (ps != null && p.syncable
4028                        && (!mSafeMode || (p.info.applicationInfo.flags
4029                                &ApplicationInfo.FLAG_SYSTEM) != 0)) {
4030                    ProviderInfo info = PackageParser.generateProviderInfo(p, 0,
4031                            ps.readUserState(userId), userId);
4032                    if (info != null) {
4033                        outNames.add(entry.getKey());
4034                        outInfo.add(info);
4035                    }
4036                }
4037            }
4038        }
4039    }
4040
4041    @Override
4042    public List<ProviderInfo> queryContentProviders(String processName,
4043            int uid, int flags) {
4044        ArrayList<ProviderInfo> finalList = null;
4045        // reader
4046        synchronized (mPackages) {
4047            final Iterator<PackageParser.Provider> i = mProviders.mProviders.values().iterator();
4048            final int userId = processName != null ?
4049                    UserHandle.getUserId(uid) : UserHandle.getCallingUserId();
4050            while (i.hasNext()) {
4051                final PackageParser.Provider p = i.next();
4052                PackageSetting ps = mSettings.mPackages.get(p.owner.packageName);
4053                if (ps != null && p.info.authority != null
4054                        && (processName == null
4055                                || (p.info.processName.equals(processName)
4056                                        && UserHandle.isSameApp(p.info.applicationInfo.uid, uid)))
4057                        && mSettings.isEnabledLPr(p.info, flags, userId)
4058                        && (!mSafeMode
4059                                || (p.info.applicationInfo.flags & ApplicationInfo.FLAG_SYSTEM) != 0)) {
4060                    if (finalList == null) {
4061                        finalList = new ArrayList<ProviderInfo>(3);
4062                    }
4063                    ProviderInfo info = PackageParser.generateProviderInfo(p, flags,
4064                            ps.readUserState(userId), userId);
4065                    if (info != null) {
4066                        finalList.add(info);
4067                    }
4068                }
4069            }
4070        }
4071
4072        if (finalList != null) {
4073            Collections.sort(finalList, mProviderInitOrderSorter);
4074        }
4075
4076        return finalList;
4077    }
4078
4079    @Override
4080    public InstrumentationInfo getInstrumentationInfo(ComponentName name,
4081            int flags) {
4082        // reader
4083        synchronized (mPackages) {
4084            final PackageParser.Instrumentation i = mInstrumentation.get(name);
4085            return PackageParser.generateInstrumentationInfo(i, flags);
4086        }
4087    }
4088
4089    @Override
4090    public List<InstrumentationInfo> queryInstrumentation(String targetPackage,
4091            int flags) {
4092        ArrayList<InstrumentationInfo> finalList =
4093            new ArrayList<InstrumentationInfo>();
4094
4095        // reader
4096        synchronized (mPackages) {
4097            final Iterator<PackageParser.Instrumentation> i = mInstrumentation.values().iterator();
4098            while (i.hasNext()) {
4099                final PackageParser.Instrumentation p = i.next();
4100                if (targetPackage == null
4101                        || targetPackage.equals(p.info.targetPackage)) {
4102                    InstrumentationInfo ii = PackageParser.generateInstrumentationInfo(p,
4103                            flags);
4104                    if (ii != null) {
4105                        finalList.add(ii);
4106                    }
4107                }
4108            }
4109        }
4110
4111        return finalList;
4112    }
4113
4114    private void createIdmapsForPackageLI(PackageParser.Package pkg) {
4115        ArrayMap<String, PackageParser.Package> overlays = mOverlays.get(pkg.packageName);
4116        if (overlays == null) {
4117            Slog.w(TAG, "Unable to create idmap for " + pkg.packageName + ": no overlay packages");
4118            return;
4119        }
4120        for (PackageParser.Package opkg : overlays.values()) {
4121            // Not much to do if idmap fails: we already logged the error
4122            // and we certainly don't want to abort installation of pkg simply
4123            // because an overlay didn't fit properly. For these reasons,
4124            // ignore the return value of createIdmapForPackagePairLI.
4125            createIdmapForPackagePairLI(pkg, opkg);
4126        }
4127    }
4128
4129    private boolean createIdmapForPackagePairLI(PackageParser.Package pkg,
4130            PackageParser.Package opkg) {
4131        if (!opkg.mTrustedOverlay) {
4132            Slog.w(TAG, "Skipping target and overlay pair " + pkg.baseCodePath + " and " +
4133                    opkg.baseCodePath + ": overlay not trusted");
4134            return false;
4135        }
4136        ArrayMap<String, PackageParser.Package> overlaySet = mOverlays.get(pkg.packageName);
4137        if (overlaySet == null) {
4138            Slog.e(TAG, "was about to create idmap for " + pkg.baseCodePath + " and " +
4139                    opkg.baseCodePath + " but target package has no known overlays");
4140            return false;
4141        }
4142        final int sharedGid = UserHandle.getSharedAppGid(pkg.applicationInfo.uid);
4143        // TODO: generate idmap for split APKs
4144        if (mInstaller.idmap(pkg.baseCodePath, opkg.baseCodePath, sharedGid) != 0) {
4145            Slog.e(TAG, "Failed to generate idmap for " + pkg.baseCodePath + " and "
4146                    + opkg.baseCodePath);
4147            return false;
4148        }
4149        PackageParser.Package[] overlayArray =
4150            overlaySet.values().toArray(new PackageParser.Package[0]);
4151        Comparator<PackageParser.Package> cmp = new Comparator<PackageParser.Package>() {
4152            public int compare(PackageParser.Package p1, PackageParser.Package p2) {
4153                return p1.mOverlayPriority - p2.mOverlayPriority;
4154            }
4155        };
4156        Arrays.sort(overlayArray, cmp);
4157
4158        pkg.applicationInfo.resourceDirs = new String[overlayArray.length];
4159        int i = 0;
4160        for (PackageParser.Package p : overlayArray) {
4161            pkg.applicationInfo.resourceDirs[i++] = p.baseCodePath;
4162        }
4163        return true;
4164    }
4165
4166    private void scanDirLI(File dir, int parseFlags, int scanFlags, long currentTime) {
4167        final File[] files = dir.listFiles();
4168        if (ArrayUtils.isEmpty(files)) {
4169            Log.d(TAG, "No files in app dir " + dir);
4170            return;
4171        }
4172
4173        if (DEBUG_PACKAGE_SCANNING) {
4174            Log.d(TAG, "Scanning app dir " + dir + " scanFlags=" + scanFlags
4175                    + " flags=0x" + Integer.toHexString(parseFlags));
4176        }
4177
4178        for (File file : files) {
4179            final boolean isPackage = (isApkFile(file) || file.isDirectory())
4180                    && !PackageInstallerService.isStageName(file.getName());
4181            if (!isPackage) {
4182                // Ignore entries which are not packages
4183                continue;
4184            }
4185            try {
4186                scanPackageLI(file, parseFlags | PackageParser.PARSE_MUST_BE_APK,
4187                        scanFlags, currentTime, null);
4188            } catch (PackageManagerException e) {
4189                Slog.w(TAG, "Failed to parse " + file + ": " + e.getMessage());
4190
4191                // Delete invalid userdata apps
4192                if ((parseFlags & PackageParser.PARSE_IS_SYSTEM) == 0 &&
4193                        e.error == PackageManager.INSTALL_FAILED_INVALID_APK) {
4194                    logCriticalInfo(Log.WARN, "Deleting invalid package at " + file);
4195                    if (file.isDirectory()) {
4196                        mInstaller.rmPackageDir(file.getAbsolutePath());
4197                    } else {
4198                        file.delete();
4199                    }
4200                }
4201            }
4202        }
4203    }
4204
4205    private static File getSettingsProblemFile() {
4206        File dataDir = Environment.getDataDirectory();
4207        File systemDir = new File(dataDir, "system");
4208        File fname = new File(systemDir, "uiderrors.txt");
4209        return fname;
4210    }
4211
4212    static void reportSettingsProblem(int priority, String msg) {
4213        logCriticalInfo(priority, msg);
4214    }
4215
4216    static void logCriticalInfo(int priority, String msg) {
4217        Slog.println(priority, TAG, msg);
4218        EventLogTags.writePmCriticalInfo(msg);
4219        try {
4220            File fname = getSettingsProblemFile();
4221            FileOutputStream out = new FileOutputStream(fname, true);
4222            PrintWriter pw = new FastPrintWriter(out);
4223            SimpleDateFormat formatter = new SimpleDateFormat();
4224            String dateString = formatter.format(new Date(System.currentTimeMillis()));
4225            pw.println(dateString + ": " + msg);
4226            pw.close();
4227            FileUtils.setPermissions(
4228                    fname.toString(),
4229                    FileUtils.S_IRWXU|FileUtils.S_IRWXG|FileUtils.S_IROTH,
4230                    -1, -1);
4231        } catch (java.io.IOException e) {
4232        }
4233    }
4234
4235    private void collectCertificatesLI(PackageParser pp, PackageSetting ps,
4236            PackageParser.Package pkg, File srcFile, int parseFlags)
4237            throws PackageManagerException {
4238        if (ps != null
4239                && ps.codePath.equals(srcFile)
4240                && ps.timeStamp == srcFile.lastModified()
4241                && !isCompatSignatureUpdateNeeded(pkg)
4242                && !isRecoverSignatureUpdateNeeded(pkg)) {
4243            long mSigningKeySetId = ps.keySetData.getProperSigningKeySet();
4244            if (ps.signatures.mSignatures != null
4245                    && ps.signatures.mSignatures.length != 0
4246                    && mSigningKeySetId != PackageKeySetData.KEYSET_UNASSIGNED) {
4247                // Optimization: reuse the existing cached certificates
4248                // if the package appears to be unchanged.
4249                pkg.mSignatures = ps.signatures.mSignatures;
4250                KeySetManagerService ksms = mSettings.mKeySetManagerService;
4251                synchronized (mPackages) {
4252                    pkg.mSigningKeys = ksms.getPublicKeysFromKeySetLPr(mSigningKeySetId);
4253                }
4254                return;
4255            }
4256
4257            Slog.w(TAG, "PackageSetting for " + ps.name
4258                    + " is missing signatures.  Collecting certs again to recover them.");
4259        } else {
4260            Log.i(TAG, srcFile.toString() + " changed; collecting certs");
4261        }
4262
4263        try {
4264            pp.collectCertificates(pkg, parseFlags);
4265            pp.collectManifestDigest(pkg);
4266        } catch (PackageParserException e) {
4267            throw PackageManagerException.from(e);
4268        }
4269    }
4270
4271    /*
4272     *  Scan a package and return the newly parsed package.
4273     *  Returns null in case of errors and the error code is stored in mLastScanError
4274     */
4275    private PackageParser.Package scanPackageLI(File scanFile, int parseFlags, int scanFlags,
4276            long currentTime, UserHandle user) throws PackageManagerException {
4277        if (DEBUG_INSTALL) Slog.d(TAG, "Parsing: " + scanFile);
4278        parseFlags |= mDefParseFlags;
4279        PackageParser pp = new PackageParser();
4280        pp.setSeparateProcesses(mSeparateProcesses);
4281        pp.setOnlyCoreApps(mOnlyCore);
4282        pp.setDisplayMetrics(mMetrics);
4283
4284        if ((scanFlags & SCAN_TRUSTED_OVERLAY) != 0) {
4285            parseFlags |= PackageParser.PARSE_TRUSTED_OVERLAY;
4286        }
4287
4288        final PackageParser.Package pkg;
4289        try {
4290            pkg = pp.parsePackage(scanFile, parseFlags);
4291        } catch (PackageParserException e) {
4292            throw PackageManagerException.from(e);
4293        }
4294
4295        PackageSetting ps = null;
4296        PackageSetting updatedPkg;
4297        // reader
4298        synchronized (mPackages) {
4299            // Look to see if we already know about this package.
4300            String oldName = mSettings.mRenamedPackages.get(pkg.packageName);
4301            if (pkg.mOriginalPackages != null && pkg.mOriginalPackages.contains(oldName)) {
4302                // This package has been renamed to its original name.  Let's
4303                // use that.
4304                ps = mSettings.peekPackageLPr(oldName);
4305            }
4306            // If there was no original package, see one for the real package name.
4307            if (ps == null) {
4308                ps = mSettings.peekPackageLPr(pkg.packageName);
4309            }
4310            // Check to see if this package could be hiding/updating a system
4311            // package.  Must look for it either under the original or real
4312            // package name depending on our state.
4313            updatedPkg = mSettings.getDisabledSystemPkgLPr(ps != null ? ps.name : pkg.packageName);
4314            if (DEBUG_INSTALL && updatedPkg != null) Slog.d(TAG, "updatedPkg = " + updatedPkg);
4315        }
4316        boolean updatedPkgBetter = false;
4317        // First check if this is a system package that may involve an update
4318        if (updatedPkg != null && (parseFlags&PackageParser.PARSE_IS_SYSTEM) != 0) {
4319            // If new package is not located in "/system/priv-app" (e.g. due to an OTA),
4320            // it needs to drop FLAG_PRIVILEGED.
4321            if (locationIsPrivileged(scanFile)) {
4322                updatedPkg.pkgPrivateFlags |= ApplicationInfo.PRIVATE_FLAG_PRIVILEGED;
4323            } else {
4324                updatedPkg.pkgPrivateFlags &= ~ApplicationInfo.PRIVATE_FLAG_PRIVILEGED;
4325            }
4326
4327            if (ps != null && !ps.codePath.equals(scanFile)) {
4328                // The path has changed from what was last scanned...  check the
4329                // version of the new path against what we have stored to determine
4330                // what to do.
4331                if (DEBUG_INSTALL) Slog.d(TAG, "Path changing from " + ps.codePath);
4332                if (pkg.mVersionCode <= ps.versionCode) {
4333                    // The system package has been updated and the code path does not match
4334                    // Ignore entry. Skip it.
4335                    Slog.i(TAG, "Package " + ps.name + " at " + scanFile
4336                            + " ignored: updated version " + ps.versionCode
4337                            + " better than this " + pkg.mVersionCode);
4338                    if (!updatedPkg.codePath.equals(scanFile)) {
4339                        Slog.w(PackageManagerService.TAG, "Code path for hidden system pkg : "
4340                                + ps.name + " changing from " + updatedPkg.codePathString
4341                                + " to " + scanFile);
4342                        updatedPkg.codePath = scanFile;
4343                        updatedPkg.codePathString = scanFile.toString();
4344                        updatedPkg.resourcePath = scanFile;
4345                        updatedPkg.resourcePathString = scanFile.toString();
4346                    }
4347                    updatedPkg.pkg = pkg;
4348                    throw new PackageManagerException(INSTALL_FAILED_DUPLICATE_PACKAGE, null);
4349                } else {
4350                    // The current app on the system partition is better than
4351                    // what we have updated to on the data partition; switch
4352                    // back to the system partition version.
4353                    // At this point, its safely assumed that package installation for
4354                    // apps in system partition will go through. If not there won't be a working
4355                    // version of the app
4356                    // writer
4357                    synchronized (mPackages) {
4358                        // Just remove the loaded entries from package lists.
4359                        mPackages.remove(ps.name);
4360                    }
4361
4362                    logCriticalInfo(Log.WARN, "Package " + ps.name + " at " + scanFile
4363                            + " reverting from " + ps.codePathString
4364                            + ": new version " + pkg.mVersionCode
4365                            + " better than installed " + ps.versionCode);
4366
4367                    InstallArgs args = createInstallArgsForExisting(packageFlagsToInstallFlags(ps),
4368                            ps.codePathString, ps.resourcePathString, ps.legacyNativeLibraryPathString,
4369                            getAppDexInstructionSets(ps));
4370                    synchronized (mInstallLock) {
4371                        args.cleanUpResourcesLI();
4372                    }
4373                    synchronized (mPackages) {
4374                        mSettings.enableSystemPackageLPw(ps.name);
4375                    }
4376                    updatedPkgBetter = true;
4377                }
4378            }
4379        }
4380
4381        if (updatedPkg != null) {
4382            // An updated system app will not have the PARSE_IS_SYSTEM flag set
4383            // initially
4384            parseFlags |= PackageParser.PARSE_IS_SYSTEM;
4385
4386            // An updated privileged app will not have the PARSE_IS_PRIVILEGED
4387            // flag set initially
4388            if ((updatedPkg.pkgPrivateFlags & ApplicationInfo.PRIVATE_FLAG_PRIVILEGED) != 0) {
4389                parseFlags |= PackageParser.PARSE_IS_PRIVILEGED;
4390            }
4391        }
4392
4393        // Verify certificates against what was last scanned
4394        collectCertificatesLI(pp, ps, pkg, scanFile, parseFlags);
4395
4396        /*
4397         * A new system app appeared, but we already had a non-system one of the
4398         * same name installed earlier.
4399         */
4400        boolean shouldHideSystemApp = false;
4401        if (updatedPkg == null && ps != null
4402                && (parseFlags & PackageParser.PARSE_IS_SYSTEM_DIR) != 0 && !isSystemApp(ps)) {
4403            /*
4404             * Check to make sure the signatures match first. If they don't,
4405             * wipe the installed application and its data.
4406             */
4407            if (compareSignatures(ps.signatures.mSignatures, pkg.mSignatures)
4408                    != PackageManager.SIGNATURE_MATCH) {
4409                logCriticalInfo(Log.WARN, "Package " + ps.name + " appeared on system, but"
4410                        + " signatures don't match existing userdata copy; removing");
4411                deletePackageLI(pkg.packageName, null, true, null, null, 0, null, false);
4412                ps = null;
4413            } else {
4414                /*
4415                 * If the newly-added system app is an older version than the
4416                 * already installed version, hide it. It will be scanned later
4417                 * and re-added like an update.
4418                 */
4419                if (pkg.mVersionCode <= ps.versionCode) {
4420                    shouldHideSystemApp = true;
4421                    logCriticalInfo(Log.INFO, "Package " + ps.name + " appeared at " + scanFile
4422                            + " but new version " + pkg.mVersionCode + " better than installed "
4423                            + ps.versionCode + "; hiding system");
4424                } else {
4425                    /*
4426                     * The newly found system app is a newer version that the
4427                     * one previously installed. Simply remove the
4428                     * already-installed application and replace it with our own
4429                     * while keeping the application data.
4430                     */
4431                    logCriticalInfo(Log.WARN, "Package " + ps.name + " at " + scanFile
4432                            + " reverting from " + ps.codePathString + ": new version "
4433                            + pkg.mVersionCode + " better than installed " + ps.versionCode);
4434                    InstallArgs args = createInstallArgsForExisting(packageFlagsToInstallFlags(ps),
4435                            ps.codePathString, ps.resourcePathString, ps.legacyNativeLibraryPathString,
4436                            getAppDexInstructionSets(ps));
4437                    synchronized (mInstallLock) {
4438                        args.cleanUpResourcesLI();
4439                    }
4440                }
4441            }
4442        }
4443
4444        // The apk is forward locked (not public) if its code and resources
4445        // are kept in different files. (except for app in either system or
4446        // vendor path).
4447        // TODO grab this value from PackageSettings
4448        if ((parseFlags & PackageParser.PARSE_IS_SYSTEM_DIR) == 0) {
4449            if (ps != null && !ps.codePath.equals(ps.resourcePath)) {
4450                parseFlags |= PackageParser.PARSE_FORWARD_LOCK;
4451            }
4452        }
4453
4454        // TODO: extend to support forward-locked splits
4455        String resourcePath = null;
4456        String baseResourcePath = null;
4457        if ((parseFlags & PackageParser.PARSE_FORWARD_LOCK) != 0 && !updatedPkgBetter) {
4458            if (ps != null && ps.resourcePathString != null) {
4459                resourcePath = ps.resourcePathString;
4460                baseResourcePath = ps.resourcePathString;
4461            } else {
4462                // Should not happen at all. Just log an error.
4463                Slog.e(TAG, "Resource path not set for pkg : " + pkg.packageName);
4464            }
4465        } else {
4466            resourcePath = pkg.codePath;
4467            baseResourcePath = pkg.baseCodePath;
4468        }
4469
4470        // Set application objects path explicitly.
4471        pkg.applicationInfo.setCodePath(pkg.codePath);
4472        pkg.applicationInfo.setBaseCodePath(pkg.baseCodePath);
4473        pkg.applicationInfo.setSplitCodePaths(pkg.splitCodePaths);
4474        pkg.applicationInfo.setResourcePath(resourcePath);
4475        pkg.applicationInfo.setBaseResourcePath(baseResourcePath);
4476        pkg.applicationInfo.setSplitResourcePaths(pkg.splitCodePaths);
4477
4478        // Note that we invoke the following method only if we are about to unpack an application
4479        PackageParser.Package scannedPkg = scanPackageLI(pkg, parseFlags, scanFlags
4480                | SCAN_UPDATE_SIGNATURE, currentTime, user);
4481
4482        /*
4483         * If the system app should be overridden by a previously installed
4484         * data, hide the system app now and let the /data/app scan pick it up
4485         * again.
4486         */
4487        if (shouldHideSystemApp) {
4488            synchronized (mPackages) {
4489                /*
4490                 * We have to grant systems permissions before we hide, because
4491                 * grantPermissions will assume the package update is trying to
4492                 * expand its permissions.
4493                 */
4494                grantPermissionsLPw(pkg, true, pkg.packageName);
4495                mSettings.disableSystemPackageLPw(pkg.packageName);
4496            }
4497        }
4498
4499        return scannedPkg;
4500    }
4501
4502    private static String fixProcessName(String defProcessName,
4503            String processName, int uid) {
4504        if (processName == null) {
4505            return defProcessName;
4506        }
4507        return processName;
4508    }
4509
4510    private void verifySignaturesLP(PackageSetting pkgSetting, PackageParser.Package pkg)
4511            throws PackageManagerException {
4512        if (pkgSetting.signatures.mSignatures != null) {
4513            // Already existing package. Make sure signatures match
4514            boolean match = compareSignatures(pkgSetting.signatures.mSignatures, pkg.mSignatures)
4515                    == PackageManager.SIGNATURE_MATCH;
4516            if (!match) {
4517                match = compareSignaturesCompat(pkgSetting.signatures, pkg)
4518                        == PackageManager.SIGNATURE_MATCH;
4519            }
4520            if (!match) {
4521                match = compareSignaturesRecover(pkgSetting.signatures, pkg)
4522                        == PackageManager.SIGNATURE_MATCH;
4523            }
4524            if (!match) {
4525                throw new PackageManagerException(INSTALL_FAILED_UPDATE_INCOMPATIBLE, "Package "
4526                        + pkg.packageName + " signatures do not match the "
4527                        + "previously installed version; ignoring!");
4528            }
4529        }
4530
4531        // Check for shared user signatures
4532        if (pkgSetting.sharedUser != null && pkgSetting.sharedUser.signatures.mSignatures != null) {
4533            // Already existing package. Make sure signatures match
4534            boolean match = compareSignatures(pkgSetting.sharedUser.signatures.mSignatures,
4535                    pkg.mSignatures) == PackageManager.SIGNATURE_MATCH;
4536            if (!match) {
4537                match = compareSignaturesCompat(pkgSetting.sharedUser.signatures, pkg)
4538                        == PackageManager.SIGNATURE_MATCH;
4539            }
4540            if (!match) {
4541                match = compareSignaturesRecover(pkgSetting.sharedUser.signatures, pkg)
4542                        == PackageManager.SIGNATURE_MATCH;
4543            }
4544            if (!match) {
4545                throw new PackageManagerException(INSTALL_FAILED_SHARED_USER_INCOMPATIBLE,
4546                        "Package " + pkg.packageName
4547                        + " has no signatures that match those in shared user "
4548                        + pkgSetting.sharedUser.name + "; ignoring!");
4549            }
4550        }
4551    }
4552
4553    /**
4554     * Enforces that only the system UID or root's UID can call a method exposed
4555     * via Binder.
4556     *
4557     * @param message used as message if SecurityException is thrown
4558     * @throws SecurityException if the caller is not system or root
4559     */
4560    private static final void enforceSystemOrRoot(String message) {
4561        final int uid = Binder.getCallingUid();
4562        if (uid != Process.SYSTEM_UID && uid != 0) {
4563            throw new SecurityException(message);
4564        }
4565    }
4566
4567    @Override
4568    public void performBootDexOpt() {
4569        enforceSystemOrRoot("Only the system can request dexopt be performed");
4570
4571        // Before everything else, see whether we need to fstrim.
4572        try {
4573            IMountService ms = PackageHelper.getMountService();
4574            if (ms != null) {
4575                final boolean isUpgrade = isUpgrade();
4576                boolean doTrim = isUpgrade;
4577                if (doTrim) {
4578                    Slog.w(TAG, "Running disk maintenance immediately due to system update");
4579                } else {
4580                    final long interval = android.provider.Settings.Global.getLong(
4581                            mContext.getContentResolver(),
4582                            android.provider.Settings.Global.FSTRIM_MANDATORY_INTERVAL,
4583                            DEFAULT_MANDATORY_FSTRIM_INTERVAL);
4584                    if (interval > 0) {
4585                        final long timeSinceLast = System.currentTimeMillis() - ms.lastMaintenance();
4586                        if (timeSinceLast > interval) {
4587                            doTrim = true;
4588                            Slog.w(TAG, "No disk maintenance in " + timeSinceLast
4589                                    + "; running immediately");
4590                        }
4591                    }
4592                }
4593                if (doTrim) {
4594                    if (!isFirstBoot()) {
4595                        try {
4596                            ActivityManagerNative.getDefault().showBootMessage(
4597                                    mContext.getResources().getString(
4598                                            R.string.android_upgrading_fstrim), true);
4599                        } catch (RemoteException e) {
4600                        }
4601                    }
4602                    ms.runMaintenance();
4603                }
4604            } else {
4605                Slog.e(TAG, "Mount service unavailable!");
4606            }
4607        } catch (RemoteException e) {
4608            // Can't happen; MountService is local
4609        }
4610
4611        final ArraySet<PackageParser.Package> pkgs;
4612        synchronized (mPackages) {
4613            pkgs = mPackageDexOptimizer.clearDeferredDexOptPackages();
4614        }
4615
4616        if (pkgs != null) {
4617            // Sort apps by importance for dexopt ordering. Important apps are given more priority
4618            // in case the device runs out of space.
4619            ArrayList<PackageParser.Package> sortedPkgs = new ArrayList<PackageParser.Package>();
4620            // Give priority to core apps.
4621            for (Iterator<PackageParser.Package> it = pkgs.iterator(); it.hasNext();) {
4622                PackageParser.Package pkg = it.next();
4623                if (pkg.coreApp) {
4624                    if (DEBUG_DEXOPT) {
4625                        Log.i(TAG, "Adding core app " + sortedPkgs.size() + ": " + pkg.packageName);
4626                    }
4627                    sortedPkgs.add(pkg);
4628                    it.remove();
4629                }
4630            }
4631            // Give priority to system apps that listen for pre boot complete.
4632            Intent intent = new Intent(Intent.ACTION_PRE_BOOT_COMPLETED);
4633            ArraySet<String> pkgNames = getPackageNamesForIntent(intent);
4634            for (Iterator<PackageParser.Package> it = pkgs.iterator(); it.hasNext();) {
4635                PackageParser.Package pkg = it.next();
4636                if (pkgNames.contains(pkg.packageName)) {
4637                    if (DEBUG_DEXOPT) {
4638                        Log.i(TAG, "Adding pre boot system app " + sortedPkgs.size() + ": " + pkg.packageName);
4639                    }
4640                    sortedPkgs.add(pkg);
4641                    it.remove();
4642                }
4643            }
4644            // Give priority to system apps.
4645            for (Iterator<PackageParser.Package> it = pkgs.iterator(); it.hasNext();) {
4646                PackageParser.Package pkg = it.next();
4647                if (isSystemApp(pkg) && !pkg.isUpdatedSystemApp()) {
4648                    if (DEBUG_DEXOPT) {
4649                        Log.i(TAG, "Adding system app " + sortedPkgs.size() + ": " + pkg.packageName);
4650                    }
4651                    sortedPkgs.add(pkg);
4652                    it.remove();
4653                }
4654            }
4655            // Give priority to updated system apps.
4656            for (Iterator<PackageParser.Package> it = pkgs.iterator(); it.hasNext();) {
4657                PackageParser.Package pkg = it.next();
4658                if (pkg.isUpdatedSystemApp()) {
4659                    if (DEBUG_DEXOPT) {
4660                        Log.i(TAG, "Adding updated system app " + sortedPkgs.size() + ": " + pkg.packageName);
4661                    }
4662                    sortedPkgs.add(pkg);
4663                    it.remove();
4664                }
4665            }
4666            // Give priority to apps that listen for boot complete.
4667            intent = new Intent(Intent.ACTION_BOOT_COMPLETED);
4668            pkgNames = getPackageNamesForIntent(intent);
4669            for (Iterator<PackageParser.Package> it = pkgs.iterator(); it.hasNext();) {
4670                PackageParser.Package pkg = it.next();
4671                if (pkgNames.contains(pkg.packageName)) {
4672                    if (DEBUG_DEXOPT) {
4673                        Log.i(TAG, "Adding boot app " + sortedPkgs.size() + ": " + pkg.packageName);
4674                    }
4675                    sortedPkgs.add(pkg);
4676                    it.remove();
4677                }
4678            }
4679            // Filter out packages that aren't recently used.
4680            filterRecentlyUsedApps(pkgs);
4681            // Add all remaining apps.
4682            for (PackageParser.Package pkg : pkgs) {
4683                if (DEBUG_DEXOPT) {
4684                    Log.i(TAG, "Adding app " + sortedPkgs.size() + ": " + pkg.packageName);
4685                }
4686                sortedPkgs.add(pkg);
4687            }
4688
4689            // If we want to be lazy, filter everything that wasn't recently used.
4690            if (mLazyDexOpt) {
4691                filterRecentlyUsedApps(sortedPkgs);
4692            }
4693
4694            int i = 0;
4695            int total = sortedPkgs.size();
4696            File dataDir = Environment.getDataDirectory();
4697            long lowThreshold = StorageManager.from(mContext).getStorageLowBytes(dataDir);
4698            if (lowThreshold == 0) {
4699                throw new IllegalStateException("Invalid low memory threshold");
4700            }
4701            for (PackageParser.Package pkg : sortedPkgs) {
4702                long usableSpace = dataDir.getUsableSpace();
4703                if (usableSpace < lowThreshold) {
4704                    Log.w(TAG, "Not running dexopt on remaining apps due to low memory: " + usableSpace);
4705                    break;
4706                }
4707                performBootDexOpt(pkg, ++i, total);
4708            }
4709        }
4710    }
4711
4712    private void filterRecentlyUsedApps(Collection<PackageParser.Package> pkgs) {
4713        // Filter out packages that aren't recently used.
4714        //
4715        // The exception is first boot of a non-eng device (aka !mLazyDexOpt), which
4716        // should do a full dexopt.
4717        if (mLazyDexOpt || (!isFirstBoot() && mPackageUsage.isHistoricalPackageUsageAvailable())) {
4718            int total = pkgs.size();
4719            int skipped = 0;
4720            long now = System.currentTimeMillis();
4721            for (Iterator<PackageParser.Package> i = pkgs.iterator(); i.hasNext();) {
4722                PackageParser.Package pkg = i.next();
4723                long then = pkg.mLastPackageUsageTimeInMills;
4724                if (then + mDexOptLRUThresholdInMills < now) {
4725                    if (DEBUG_DEXOPT) {
4726                        Log.i(TAG, "Skipping dexopt of " + pkg.packageName + " last resumed: " +
4727                              ((then == 0) ? "never" : new Date(then)));
4728                    }
4729                    i.remove();
4730                    skipped++;
4731                }
4732            }
4733            if (DEBUG_DEXOPT) {
4734                Log.i(TAG, "Skipped optimizing " + skipped + " of " + total);
4735            }
4736        }
4737    }
4738
4739    private ArraySet<String> getPackageNamesForIntent(Intent intent) {
4740        List<ResolveInfo> ris = null;
4741        try {
4742            ris = AppGlobals.getPackageManager().queryIntentReceivers(
4743                    intent, null, 0, UserHandle.USER_OWNER);
4744        } catch (RemoteException e) {
4745        }
4746        ArraySet<String> pkgNames = new ArraySet<String>();
4747        if (ris != null) {
4748            for (ResolveInfo ri : ris) {
4749                pkgNames.add(ri.activityInfo.packageName);
4750            }
4751        }
4752        return pkgNames;
4753    }
4754
4755    private void performBootDexOpt(PackageParser.Package pkg, int curr, int total) {
4756        if (DEBUG_DEXOPT) {
4757            Log.i(TAG, "Optimizing app " + curr + " of " + total + ": " + pkg.packageName);
4758        }
4759        if (!isFirstBoot()) {
4760            try {
4761                ActivityManagerNative.getDefault().showBootMessage(
4762                        mContext.getResources().getString(R.string.android_upgrading_apk,
4763                                curr, total), true);
4764            } catch (RemoteException e) {
4765            }
4766        }
4767        PackageParser.Package p = pkg;
4768        synchronized (mInstallLock) {
4769            mPackageDexOptimizer.performDexOpt(p, null /* instruction sets */,
4770                    false /* force dex */, false /* defer */, true /* include dependencies */);
4771        }
4772    }
4773
4774    @Override
4775    public boolean performDexOptIfNeeded(String packageName, String instructionSet) {
4776        return performDexOpt(packageName, instructionSet, false);
4777    }
4778
4779    public boolean performDexOpt(String packageName, String instructionSet, boolean backgroundDexopt) {
4780        boolean dexopt = mLazyDexOpt || backgroundDexopt;
4781        boolean updateUsage = !backgroundDexopt;  // Don't update usage if this is just a backgroundDexopt
4782        if (!dexopt && !updateUsage) {
4783            // We aren't going to dexopt or update usage, so bail early.
4784            return false;
4785        }
4786        PackageParser.Package p;
4787        final String targetInstructionSet;
4788        synchronized (mPackages) {
4789            p = mPackages.get(packageName);
4790            if (p == null) {
4791                return false;
4792            }
4793            if (updateUsage) {
4794                p.mLastPackageUsageTimeInMills = System.currentTimeMillis();
4795            }
4796            mPackageUsage.write(false);
4797            if (!dexopt) {
4798                // We aren't going to dexopt, so bail early.
4799                return false;
4800            }
4801
4802            targetInstructionSet = instructionSet != null ? instructionSet :
4803                    getPrimaryInstructionSet(p.applicationInfo);
4804            if (p.mDexOptPerformed.contains(targetInstructionSet)) {
4805                return false;
4806            }
4807        }
4808
4809        synchronized (mInstallLock) {
4810            final String[] instructionSets = new String[] { targetInstructionSet };
4811            int result = mPackageDexOptimizer.performDexOpt(p, instructionSets,
4812                    false /* forceDex */, false /* defer */, true /* inclDependencies */);
4813            return result == PackageDexOptimizer.DEX_OPT_PERFORMED;
4814        }
4815    }
4816
4817    public ArraySet<String> getPackagesThatNeedDexOpt() {
4818        ArraySet<String> pkgs = null;
4819        synchronized (mPackages) {
4820            for (PackageParser.Package p : mPackages.values()) {
4821                if (DEBUG_DEXOPT) {
4822                    Log.i(TAG, p.packageName + " mDexOptPerformed=" + p.mDexOptPerformed.toArray());
4823                }
4824                if (!p.mDexOptPerformed.isEmpty()) {
4825                    continue;
4826                }
4827                if (pkgs == null) {
4828                    pkgs = new ArraySet<String>();
4829                }
4830                pkgs.add(p.packageName);
4831            }
4832        }
4833        return pkgs;
4834    }
4835
4836    public void shutdown() {
4837        mPackageUsage.write(true);
4838    }
4839
4840    @Override
4841    public void forceDexOpt(String packageName) {
4842        enforceSystemOrRoot("forceDexOpt");
4843
4844        PackageParser.Package pkg;
4845        synchronized (mPackages) {
4846            pkg = mPackages.get(packageName);
4847            if (pkg == null) {
4848                throw new IllegalArgumentException("Missing package: " + packageName);
4849            }
4850        }
4851
4852        synchronized (mInstallLock) {
4853            final String[] instructionSets = new String[] {
4854                    getPrimaryInstructionSet(pkg.applicationInfo) };
4855            final int res = mPackageDexOptimizer.performDexOpt(pkg, instructionSets,
4856                    true /*forceDex*/, false /* defer */, true /* inclDependencies */);
4857            if (res != PackageDexOptimizer.DEX_OPT_PERFORMED) {
4858                throw new IllegalStateException("Failed to dexopt: " + res);
4859            }
4860        }
4861    }
4862
4863    private boolean verifyPackageUpdateLPr(PackageSetting oldPkg, PackageParser.Package newPkg) {
4864        if ((oldPkg.pkgFlags&ApplicationInfo.FLAG_SYSTEM) == 0) {
4865            Slog.w(TAG, "Unable to update from " + oldPkg.name
4866                    + " to " + newPkg.packageName
4867                    + ": old package not in system partition");
4868            return false;
4869        } else if (mPackages.get(oldPkg.name) != null) {
4870            Slog.w(TAG, "Unable to update from " + oldPkg.name
4871                    + " to " + newPkg.packageName
4872                    + ": old package still exists");
4873            return false;
4874        }
4875        return true;
4876    }
4877
4878    private File getDataPathForPackage(String packageName, int userId) {
4879        /*
4880         * Until we fully support multiple users, return the directory we
4881         * previously would have. The PackageManagerTests will need to be
4882         * revised when this is changed back..
4883         */
4884        if (userId == 0) {
4885            return new File(mAppDataDir, packageName);
4886        } else {
4887            return new File(mUserAppDataDir.getAbsolutePath() + File.separator + userId
4888                + File.separator + packageName);
4889        }
4890    }
4891
4892    private int createDataDirsLI(String packageName, int uid, String seinfo) {
4893        int[] users = sUserManager.getUserIds();
4894        int res = mInstaller.install(packageName, uid, uid, seinfo);
4895        if (res < 0) {
4896            return res;
4897        }
4898        for (int user : users) {
4899            if (user != 0) {
4900                res = mInstaller.createUserData(packageName,
4901                        UserHandle.getUid(user, uid), user, seinfo);
4902                if (res < 0) {
4903                    return res;
4904                }
4905            }
4906        }
4907        return res;
4908    }
4909
4910    private int removeDataDirsLI(String packageName) {
4911        int[] users = sUserManager.getUserIds();
4912        int res = 0;
4913        for (int user : users) {
4914            int resInner = mInstaller.remove(packageName, user);
4915            if (resInner < 0) {
4916                res = resInner;
4917            }
4918        }
4919
4920        return res;
4921    }
4922
4923    private int deleteCodeCacheDirsLI(String packageName) {
4924        int[] users = sUserManager.getUserIds();
4925        int res = 0;
4926        for (int user : users) {
4927            int resInner = mInstaller.deleteCodeCacheFiles(packageName, user);
4928            if (resInner < 0) {
4929                res = resInner;
4930            }
4931        }
4932        return res;
4933    }
4934
4935    private void addSharedLibraryLPw(ArraySet<String> usesLibraryFiles, SharedLibraryEntry file,
4936            PackageParser.Package changingLib) {
4937        if (file.path != null) {
4938            usesLibraryFiles.add(file.path);
4939            return;
4940        }
4941        PackageParser.Package p = mPackages.get(file.apk);
4942        if (changingLib != null && changingLib.packageName.equals(file.apk)) {
4943            // If we are doing this while in the middle of updating a library apk,
4944            // then we need to make sure to use that new apk for determining the
4945            // dependencies here.  (We haven't yet finished committing the new apk
4946            // to the package manager state.)
4947            if (p == null || p.packageName.equals(changingLib.packageName)) {
4948                p = changingLib;
4949            }
4950        }
4951        if (p != null) {
4952            usesLibraryFiles.addAll(p.getAllCodePaths());
4953        }
4954    }
4955
4956    private void updateSharedLibrariesLPw(PackageParser.Package pkg,
4957            PackageParser.Package changingLib) throws PackageManagerException {
4958        if (pkg.usesLibraries != null || pkg.usesOptionalLibraries != null) {
4959            final ArraySet<String> usesLibraryFiles = new ArraySet<>();
4960            int N = pkg.usesLibraries != null ? pkg.usesLibraries.size() : 0;
4961            for (int i=0; i<N; i++) {
4962                final SharedLibraryEntry file = mSharedLibraries.get(pkg.usesLibraries.get(i));
4963                if (file == null) {
4964                    throw new PackageManagerException(INSTALL_FAILED_MISSING_SHARED_LIBRARY,
4965                            "Package " + pkg.packageName + " requires unavailable shared library "
4966                            + pkg.usesLibraries.get(i) + "; failing!");
4967                }
4968                addSharedLibraryLPw(usesLibraryFiles, file, changingLib);
4969            }
4970            N = pkg.usesOptionalLibraries != null ? pkg.usesOptionalLibraries.size() : 0;
4971            for (int i=0; i<N; i++) {
4972                final SharedLibraryEntry file = mSharedLibraries.get(pkg.usesOptionalLibraries.get(i));
4973                if (file == null) {
4974                    Slog.w(TAG, "Package " + pkg.packageName
4975                            + " desires unavailable shared library "
4976                            + pkg.usesOptionalLibraries.get(i) + "; ignoring!");
4977                } else {
4978                    addSharedLibraryLPw(usesLibraryFiles, file, changingLib);
4979                }
4980            }
4981            N = usesLibraryFiles.size();
4982            if (N > 0) {
4983                pkg.usesLibraryFiles = usesLibraryFiles.toArray(new String[N]);
4984            } else {
4985                pkg.usesLibraryFiles = null;
4986            }
4987        }
4988    }
4989
4990    private static boolean hasString(List<String> list, List<String> which) {
4991        if (list == null) {
4992            return false;
4993        }
4994        for (int i=list.size()-1; i>=0; i--) {
4995            for (int j=which.size()-1; j>=0; j--) {
4996                if (which.get(j).equals(list.get(i))) {
4997                    return true;
4998                }
4999            }
5000        }
5001        return false;
5002    }
5003
5004    private void updateAllSharedLibrariesLPw() {
5005        for (PackageParser.Package pkg : mPackages.values()) {
5006            try {
5007                updateSharedLibrariesLPw(pkg, null);
5008            } catch (PackageManagerException e) {
5009                Slog.e(TAG, "updateAllSharedLibrariesLPw failed: " + e.getMessage());
5010            }
5011        }
5012    }
5013
5014    private ArrayList<PackageParser.Package> updateAllSharedLibrariesLPw(
5015            PackageParser.Package changingPkg) {
5016        ArrayList<PackageParser.Package> res = null;
5017        for (PackageParser.Package pkg : mPackages.values()) {
5018            if (hasString(pkg.usesLibraries, changingPkg.libraryNames)
5019                    || hasString(pkg.usesOptionalLibraries, changingPkg.libraryNames)) {
5020                if (res == null) {
5021                    res = new ArrayList<PackageParser.Package>();
5022                }
5023                res.add(pkg);
5024                try {
5025                    updateSharedLibrariesLPw(pkg, changingPkg);
5026                } catch (PackageManagerException e) {
5027                    Slog.e(TAG, "updateAllSharedLibrariesLPw failed: " + e.getMessage());
5028                }
5029            }
5030        }
5031        return res;
5032    }
5033
5034    /**
5035     * Derive the value of the {@code cpuAbiOverride} based on the provided
5036     * value and an optional stored value from the package settings.
5037     */
5038    private static String deriveAbiOverride(String abiOverride, PackageSetting settings) {
5039        String cpuAbiOverride = null;
5040
5041        if (NativeLibraryHelper.CLEAR_ABI_OVERRIDE.equals(abiOverride)) {
5042            cpuAbiOverride = null;
5043        } else if (abiOverride != null) {
5044            cpuAbiOverride = abiOverride;
5045        } else if (settings != null) {
5046            cpuAbiOverride = settings.cpuAbiOverrideString;
5047        }
5048
5049        return cpuAbiOverride;
5050    }
5051
5052    private PackageParser.Package scanPackageLI(PackageParser.Package pkg, int parseFlags,
5053            int scanFlags, long currentTime, UserHandle user) throws PackageManagerException {
5054        boolean success = false;
5055        try {
5056            final PackageParser.Package res = scanPackageDirtyLI(pkg, parseFlags, scanFlags,
5057                    currentTime, user);
5058            success = true;
5059            return res;
5060        } finally {
5061            if (!success && (scanFlags & SCAN_DELETE_DATA_ON_FAILURES) != 0) {
5062                removeDataDirsLI(pkg.packageName);
5063            }
5064        }
5065    }
5066
5067    private PackageParser.Package scanPackageDirtyLI(PackageParser.Package pkg, int parseFlags,
5068            int scanFlags, long currentTime, UserHandle user) throws PackageManagerException {
5069        final File scanFile = new File(pkg.codePath);
5070        if (pkg.applicationInfo.getCodePath() == null ||
5071                pkg.applicationInfo.getResourcePath() == null) {
5072            // Bail out. The resource and code paths haven't been set.
5073            throw new PackageManagerException(INSTALL_FAILED_INVALID_APK,
5074                    "Code and resource paths haven't been set correctly");
5075        }
5076
5077        if ((parseFlags&PackageParser.PARSE_IS_SYSTEM) != 0) {
5078            pkg.applicationInfo.flags |= ApplicationInfo.FLAG_SYSTEM;
5079        } else {
5080            // Only allow system apps to be flagged as core apps.
5081            pkg.coreApp = false;
5082        }
5083
5084        if ((parseFlags&PackageParser.PARSE_IS_PRIVILEGED) != 0) {
5085            pkg.applicationInfo.privateFlags |= ApplicationInfo.PRIVATE_FLAG_PRIVILEGED;
5086        }
5087
5088        if (mCustomResolverComponentName != null &&
5089                mCustomResolverComponentName.getPackageName().equals(pkg.packageName)) {
5090            setUpCustomResolverActivity(pkg);
5091        }
5092
5093        if (pkg.packageName.equals("android")) {
5094            synchronized (mPackages) {
5095                if (mAndroidApplication != null) {
5096                    Slog.w(TAG, "*************************************************");
5097                    Slog.w(TAG, "Core android package being redefined.  Skipping.");
5098                    Slog.w(TAG, " file=" + scanFile);
5099                    Slog.w(TAG, "*************************************************");
5100                    throw new PackageManagerException(INSTALL_FAILED_DUPLICATE_PACKAGE,
5101                            "Core android package being redefined.  Skipping.");
5102                }
5103
5104                // Set up information for our fall-back user intent resolution activity.
5105                mPlatformPackage = pkg;
5106                pkg.mVersionCode = mSdkVersion;
5107                mAndroidApplication = pkg.applicationInfo;
5108
5109                if (!mResolverReplaced) {
5110                    mResolveActivity.applicationInfo = mAndroidApplication;
5111                    mResolveActivity.name = ResolverActivity.class.getName();
5112                    mResolveActivity.packageName = mAndroidApplication.packageName;
5113                    mResolveActivity.processName = "system:ui";
5114                    mResolveActivity.launchMode = ActivityInfo.LAUNCH_MULTIPLE;
5115                    mResolveActivity.documentLaunchMode = ActivityInfo.DOCUMENT_LAUNCH_NEVER;
5116                    mResolveActivity.flags = ActivityInfo.FLAG_EXCLUDE_FROM_RECENTS;
5117                    mResolveActivity.theme = R.style.Theme_Holo_Dialog_Alert;
5118                    mResolveActivity.exported = true;
5119                    mResolveActivity.enabled = true;
5120                    mResolveInfo.activityInfo = mResolveActivity;
5121                    mResolveInfo.priority = 0;
5122                    mResolveInfo.preferredOrder = 0;
5123                    mResolveInfo.match = 0;
5124                    mResolveComponentName = new ComponentName(
5125                            mAndroidApplication.packageName, mResolveActivity.name);
5126                }
5127            }
5128        }
5129
5130        if (DEBUG_PACKAGE_SCANNING) {
5131            if ((parseFlags & PackageParser.PARSE_CHATTY) != 0)
5132                Log.d(TAG, "Scanning package " + pkg.packageName);
5133        }
5134
5135        if (mPackages.containsKey(pkg.packageName)
5136                || mSharedLibraries.containsKey(pkg.packageName)) {
5137            throw new PackageManagerException(INSTALL_FAILED_DUPLICATE_PACKAGE,
5138                    "Application package " + pkg.packageName
5139                    + " already installed.  Skipping duplicate.");
5140        }
5141
5142        // If we're only installing presumed-existing packages, require that the
5143        // scanned APK is both already known and at the path previously established
5144        // for it.  Previously unknown packages we pick up normally, but if we have an
5145        // a priori expectation about this package's install presence, enforce it.
5146        if ((scanFlags & SCAN_REQUIRE_KNOWN) != 0) {
5147            PackageSetting known = mSettings.peekPackageLPr(pkg.packageName);
5148            if (known != null) {
5149                if (DEBUG_PACKAGE_SCANNING) {
5150                    Log.d(TAG, "Examining " + pkg.codePath
5151                            + " and requiring known paths " + known.codePathString
5152                            + " & " + known.resourcePathString);
5153                }
5154                if (!pkg.applicationInfo.getCodePath().equals(known.codePathString)
5155                        || !pkg.applicationInfo.getResourcePath().equals(known.resourcePathString)) {
5156                    throw new PackageManagerException(INSTALL_FAILED_PACKAGE_CHANGED,
5157                            "Application package " + pkg.packageName
5158                            + " found at " + pkg.applicationInfo.getCodePath()
5159                            + " but expected at " + known.codePathString + "; ignoring.");
5160                }
5161            }
5162        }
5163
5164        // Initialize package source and resource directories
5165        File destCodeFile = new File(pkg.applicationInfo.getCodePath());
5166        File destResourceFile = new File(pkg.applicationInfo.getResourcePath());
5167
5168        SharedUserSetting suid = null;
5169        PackageSetting pkgSetting = null;
5170
5171        if (!isSystemApp(pkg)) {
5172            // Only system apps can use these features.
5173            pkg.mOriginalPackages = null;
5174            pkg.mRealPackage = null;
5175            pkg.mAdoptPermissions = null;
5176        }
5177
5178        // writer
5179        synchronized (mPackages) {
5180            if (pkg.mSharedUserId != null) {
5181                suid = mSettings.getSharedUserLPw(pkg.mSharedUserId, 0, 0, true);
5182                if (suid == null) {
5183                    throw new PackageManagerException(INSTALL_FAILED_INSUFFICIENT_STORAGE,
5184                            "Creating application package " + pkg.packageName
5185                            + " for shared user failed");
5186                }
5187                if (DEBUG_PACKAGE_SCANNING) {
5188                    if ((parseFlags & PackageParser.PARSE_CHATTY) != 0)
5189                        Log.d(TAG, "Shared UserID " + pkg.mSharedUserId + " (uid=" + suid.userId
5190                                + "): packages=" + suid.packages);
5191                }
5192            }
5193
5194            // Check if we are renaming from an original package name.
5195            PackageSetting origPackage = null;
5196            String realName = null;
5197            if (pkg.mOriginalPackages != null) {
5198                // This package may need to be renamed to a previously
5199                // installed name.  Let's check on that...
5200                final String renamed = mSettings.mRenamedPackages.get(pkg.mRealPackage);
5201                if (pkg.mOriginalPackages.contains(renamed)) {
5202                    // This package had originally been installed as the
5203                    // original name, and we have already taken care of
5204                    // transitioning to the new one.  Just update the new
5205                    // one to continue using the old name.
5206                    realName = pkg.mRealPackage;
5207                    if (!pkg.packageName.equals(renamed)) {
5208                        // Callers into this function may have already taken
5209                        // care of renaming the package; only do it here if
5210                        // it is not already done.
5211                        pkg.setPackageName(renamed);
5212                    }
5213
5214                } else {
5215                    for (int i=pkg.mOriginalPackages.size()-1; i>=0; i--) {
5216                        if ((origPackage = mSettings.peekPackageLPr(
5217                                pkg.mOriginalPackages.get(i))) != null) {
5218                            // We do have the package already installed under its
5219                            // original name...  should we use it?
5220                            if (!verifyPackageUpdateLPr(origPackage, pkg)) {
5221                                // New package is not compatible with original.
5222                                origPackage = null;
5223                                continue;
5224                            } else if (origPackage.sharedUser != null) {
5225                                // Make sure uid is compatible between packages.
5226                                if (!origPackage.sharedUser.name.equals(pkg.mSharedUserId)) {
5227                                    Slog.w(TAG, "Unable to migrate data from " + origPackage.name
5228                                            + " to " + pkg.packageName + ": old uid "
5229                                            + origPackage.sharedUser.name
5230                                            + " differs from " + pkg.mSharedUserId);
5231                                    origPackage = null;
5232                                    continue;
5233                                }
5234                            } else {
5235                                if (DEBUG_UPGRADE) Log.v(TAG, "Renaming new package "
5236                                        + pkg.packageName + " to old name " + origPackage.name);
5237                            }
5238                            break;
5239                        }
5240                    }
5241                }
5242            }
5243
5244            if (mTransferedPackages.contains(pkg.packageName)) {
5245                Slog.w(TAG, "Package " + pkg.packageName
5246                        + " was transferred to another, but its .apk remains");
5247            }
5248
5249            // Just create the setting, don't add it yet. For already existing packages
5250            // the PkgSetting exists already and doesn't have to be created.
5251            pkgSetting = mSettings.getPackageLPw(pkg, origPackage, realName, suid, destCodeFile,
5252                    destResourceFile, pkg.applicationInfo.nativeLibraryRootDir,
5253                    pkg.applicationInfo.primaryCpuAbi,
5254                    pkg.applicationInfo.secondaryCpuAbi,
5255                    pkg.applicationInfo.flags, pkg.applicationInfo.privateFlags,
5256                    user, false);
5257            if (pkgSetting == null) {
5258                throw new PackageManagerException(INSTALL_FAILED_INSUFFICIENT_STORAGE,
5259                        "Creating application package " + pkg.packageName + " failed");
5260            }
5261
5262            if (pkgSetting.origPackage != null) {
5263                // If we are first transitioning from an original package,
5264                // fix up the new package's name now.  We need to do this after
5265                // looking up the package under its new name, so getPackageLP
5266                // can take care of fiddling things correctly.
5267                pkg.setPackageName(origPackage.name);
5268
5269                // File a report about this.
5270                String msg = "New package " + pkgSetting.realName
5271                        + " renamed to replace old package " + pkgSetting.name;
5272                reportSettingsProblem(Log.WARN, msg);
5273
5274                // Make a note of it.
5275                mTransferedPackages.add(origPackage.name);
5276
5277                // No longer need to retain this.
5278                pkgSetting.origPackage = null;
5279            }
5280
5281            if (realName != null) {
5282                // Make a note of it.
5283                mTransferedPackages.add(pkg.packageName);
5284            }
5285
5286            if (mSettings.isDisabledSystemPackageLPr(pkg.packageName)) {
5287                pkg.applicationInfo.flags |= ApplicationInfo.FLAG_UPDATED_SYSTEM_APP;
5288            }
5289
5290            if ((parseFlags&PackageParser.PARSE_IS_SYSTEM_DIR) == 0) {
5291                // Check all shared libraries and map to their actual file path.
5292                // We only do this here for apps not on a system dir, because those
5293                // are the only ones that can fail an install due to this.  We
5294                // will take care of the system apps by updating all of their
5295                // library paths after the scan is done.
5296                updateSharedLibrariesLPw(pkg, null);
5297            }
5298
5299            if (mFoundPolicyFile) {
5300                SELinuxMMAC.assignSeinfoValue(pkg);
5301            }
5302
5303            pkg.applicationInfo.uid = pkgSetting.appId;
5304            pkg.mExtras = pkgSetting;
5305            if (!pkgSetting.keySetData.isUsingUpgradeKeySets() || pkgSetting.sharedUser != null) {
5306                try {
5307                    verifySignaturesLP(pkgSetting, pkg);
5308                    // We just determined the app is signed correctly, so bring
5309                    // over the latest parsed certs.
5310                    pkgSetting.signatures.mSignatures = pkg.mSignatures;
5311                } catch (PackageManagerException e) {
5312                    if ((parseFlags & PackageParser.PARSE_IS_SYSTEM_DIR) == 0) {
5313                        throw e;
5314                    }
5315                    // The signature has changed, but this package is in the system
5316                    // image...  let's recover!
5317                    pkgSetting.signatures.mSignatures = pkg.mSignatures;
5318                    // However...  if this package is part of a shared user, but it
5319                    // doesn't match the signature of the shared user, let's fail.
5320                    // What this means is that you can't change the signatures
5321                    // associated with an overall shared user, which doesn't seem all
5322                    // that unreasonable.
5323                    if (pkgSetting.sharedUser != null) {
5324                        if (compareSignatures(pkgSetting.sharedUser.signatures.mSignatures,
5325                                              pkg.mSignatures) != PackageManager.SIGNATURE_MATCH) {
5326                            throw new PackageManagerException(
5327                                    INSTALL_PARSE_FAILED_INCONSISTENT_CERTIFICATES,
5328                                            "Signature mismatch for shared user : "
5329                                            + pkgSetting.sharedUser);
5330                        }
5331                    }
5332                    // File a report about this.
5333                    String msg = "System package " + pkg.packageName
5334                        + " signature changed; retaining data.";
5335                    reportSettingsProblem(Log.WARN, msg);
5336                }
5337            } else {
5338                if (!checkUpgradeKeySetLP(pkgSetting, pkg)) {
5339                    throw new PackageManagerException(INSTALL_FAILED_UPDATE_INCOMPATIBLE, "Package "
5340                            + pkg.packageName + " upgrade keys do not match the "
5341                            + "previously installed version");
5342                } else {
5343                    // We just determined the app is signed correctly, so bring
5344                    // over the latest parsed certs.
5345                    pkgSetting.signatures.mSignatures = pkg.mSignatures;
5346                }
5347            }
5348            // Verify that this new package doesn't have any content providers
5349            // that conflict with existing packages.  Only do this if the
5350            // package isn't already installed, since we don't want to break
5351            // things that are installed.
5352            if ((scanFlags & SCAN_NEW_INSTALL) != 0) {
5353                final int N = pkg.providers.size();
5354                int i;
5355                for (i=0; i<N; i++) {
5356                    PackageParser.Provider p = pkg.providers.get(i);
5357                    if (p.info.authority != null) {
5358                        String names[] = p.info.authority.split(";");
5359                        for (int j = 0; j < names.length; j++) {
5360                            if (mProvidersByAuthority.containsKey(names[j])) {
5361                                PackageParser.Provider other = mProvidersByAuthority.get(names[j]);
5362                                final String otherPackageName =
5363                                        ((other != null && other.getComponentName() != null) ?
5364                                                other.getComponentName().getPackageName() : "?");
5365                                throw new PackageManagerException(
5366                                        INSTALL_FAILED_CONFLICTING_PROVIDER,
5367                                                "Can't install because provider name " + names[j]
5368                                                + " (in package " + pkg.applicationInfo.packageName
5369                                                + ") is already used by " + otherPackageName);
5370                            }
5371                        }
5372                    }
5373                }
5374            }
5375
5376            if (pkg.mAdoptPermissions != null) {
5377                // This package wants to adopt ownership of permissions from
5378                // another package.
5379                for (int i = pkg.mAdoptPermissions.size() - 1; i >= 0; i--) {
5380                    final String origName = pkg.mAdoptPermissions.get(i);
5381                    final PackageSetting orig = mSettings.peekPackageLPr(origName);
5382                    if (orig != null) {
5383                        if (verifyPackageUpdateLPr(orig, pkg)) {
5384                            Slog.i(TAG, "Adopting permissions from " + origName + " to "
5385                                    + pkg.packageName);
5386                            mSettings.transferPermissionsLPw(origName, pkg.packageName);
5387                        }
5388                    }
5389                }
5390            }
5391        }
5392
5393        final String pkgName = pkg.packageName;
5394
5395        final long scanFileTime = scanFile.lastModified();
5396        final boolean forceDex = (scanFlags & SCAN_FORCE_DEX) != 0;
5397        pkg.applicationInfo.processName = fixProcessName(
5398                pkg.applicationInfo.packageName,
5399                pkg.applicationInfo.processName,
5400                pkg.applicationInfo.uid);
5401
5402        File dataPath;
5403        if (mPlatformPackage == pkg) {
5404            // The system package is special.
5405            dataPath = new File(Environment.getDataDirectory(), "system");
5406
5407            pkg.applicationInfo.dataDir = dataPath.getPath();
5408
5409        } else {
5410            // This is a normal package, need to make its data directory.
5411            dataPath = getDataPathForPackage(pkg.packageName, 0);
5412
5413            boolean uidError = false;
5414            if (dataPath.exists()) {
5415                int currentUid = 0;
5416                try {
5417                    StructStat stat = Os.stat(dataPath.getPath());
5418                    currentUid = stat.st_uid;
5419                } catch (ErrnoException e) {
5420                    Slog.e(TAG, "Couldn't stat path " + dataPath.getPath(), e);
5421                }
5422
5423                // If we have mismatched owners for the data path, we have a problem.
5424                if (currentUid != pkg.applicationInfo.uid) {
5425                    boolean recovered = false;
5426                    if (currentUid == 0) {
5427                        // The directory somehow became owned by root.  Wow.
5428                        // This is probably because the system was stopped while
5429                        // installd was in the middle of messing with its libs
5430                        // directory.  Ask installd to fix that.
5431                        int ret = mInstaller.fixUid(pkgName, pkg.applicationInfo.uid,
5432                                pkg.applicationInfo.uid);
5433                        if (ret >= 0) {
5434                            recovered = true;
5435                            String msg = "Package " + pkg.packageName
5436                                    + " unexpectedly changed to uid 0; recovered to " +
5437                                    + pkg.applicationInfo.uid;
5438                            reportSettingsProblem(Log.WARN, msg);
5439                        }
5440                    }
5441                    if (!recovered && ((parseFlags&PackageParser.PARSE_IS_SYSTEM) != 0
5442                            || (scanFlags&SCAN_BOOTING) != 0)) {
5443                        // If this is a system app, we can at least delete its
5444                        // current data so the application will still work.
5445                        int ret = removeDataDirsLI(pkgName);
5446                        if (ret >= 0) {
5447                            // TODO: Kill the processes first
5448                            // Old data gone!
5449                            String prefix = (parseFlags&PackageParser.PARSE_IS_SYSTEM) != 0
5450                                    ? "System package " : "Third party package ";
5451                            String msg = prefix + pkg.packageName
5452                                    + " has changed from uid: "
5453                                    + currentUid + " to "
5454                                    + pkg.applicationInfo.uid + "; old data erased";
5455                            reportSettingsProblem(Log.WARN, msg);
5456                            recovered = true;
5457
5458                            // And now re-install the app.
5459                            ret = createDataDirsLI(pkgName, pkg.applicationInfo.uid,
5460                                                   pkg.applicationInfo.seinfo);
5461                            if (ret == -1) {
5462                                // Ack should not happen!
5463                                msg = prefix + pkg.packageName
5464                                        + " could not have data directory re-created after delete.";
5465                                reportSettingsProblem(Log.WARN, msg);
5466                                throw new PackageManagerException(
5467                                        INSTALL_FAILED_INSUFFICIENT_STORAGE, msg);
5468                            }
5469                        }
5470                        if (!recovered) {
5471                            mHasSystemUidErrors = true;
5472                        }
5473                    } else if (!recovered) {
5474                        // If we allow this install to proceed, we will be broken.
5475                        // Abort, abort!
5476                        throw new PackageManagerException(INSTALL_FAILED_UID_CHANGED,
5477                                "scanPackageLI");
5478                    }
5479                    if (!recovered) {
5480                        pkg.applicationInfo.dataDir = "/mismatched_uid/settings_"
5481                            + pkg.applicationInfo.uid + "/fs_"
5482                            + currentUid;
5483                        pkg.applicationInfo.nativeLibraryDir = pkg.applicationInfo.dataDir;
5484                        pkg.applicationInfo.nativeLibraryRootDir = pkg.applicationInfo.dataDir;
5485                        String msg = "Package " + pkg.packageName
5486                                + " has mismatched uid: "
5487                                + currentUid + " on disk, "
5488                                + pkg.applicationInfo.uid + " in settings";
5489                        // writer
5490                        synchronized (mPackages) {
5491                            mSettings.mReadMessages.append(msg);
5492                            mSettings.mReadMessages.append('\n');
5493                            uidError = true;
5494                            if (!pkgSetting.uidError) {
5495                                reportSettingsProblem(Log.ERROR, msg);
5496                            }
5497                        }
5498                    }
5499                }
5500                pkg.applicationInfo.dataDir = dataPath.getPath();
5501                if (mShouldRestoreconData) {
5502                    Slog.i(TAG, "SELinux relabeling of " + pkg.packageName + " issued.");
5503                    mInstaller.restoreconData(pkg.packageName, pkg.applicationInfo.seinfo,
5504                                pkg.applicationInfo.uid);
5505                }
5506            } else {
5507                if (DEBUG_PACKAGE_SCANNING) {
5508                    if ((parseFlags & PackageParser.PARSE_CHATTY) != 0)
5509                        Log.v(TAG, "Want this data dir: " + dataPath);
5510                }
5511                //invoke installer to do the actual installation
5512                int ret = createDataDirsLI(pkgName, pkg.applicationInfo.uid,
5513                                           pkg.applicationInfo.seinfo);
5514                if (ret < 0) {
5515                    // Error from installer
5516                    throw new PackageManagerException(INSTALL_FAILED_INSUFFICIENT_STORAGE,
5517                            "Unable to create data dirs [errorCode=" + ret + "]");
5518                }
5519
5520                if (dataPath.exists()) {
5521                    pkg.applicationInfo.dataDir = dataPath.getPath();
5522                } else {
5523                    Slog.w(TAG, "Unable to create data directory: " + dataPath);
5524                    pkg.applicationInfo.dataDir = null;
5525                }
5526            }
5527
5528            pkgSetting.uidError = uidError;
5529        }
5530
5531        final String path = scanFile.getPath();
5532        final String codePath = pkg.applicationInfo.getCodePath();
5533        final String cpuAbiOverride = deriveAbiOverride(pkg.cpuAbiOverride, pkgSetting);
5534        if (isSystemApp(pkg) && !pkg.isUpdatedSystemApp()) {
5535            setBundledAppAbisAndRoots(pkg, pkgSetting);
5536
5537            // If we haven't found any native libraries for the app, check if it has
5538            // renderscript code. We'll need to force the app to 32 bit if it has
5539            // renderscript bitcode.
5540            if (pkg.applicationInfo.primaryCpuAbi == null
5541                    && pkg.applicationInfo.secondaryCpuAbi == null
5542                    && Build.SUPPORTED_64_BIT_ABIS.length >  0) {
5543                NativeLibraryHelper.Handle handle = null;
5544                try {
5545                    handle = NativeLibraryHelper.Handle.create(scanFile);
5546                    if (NativeLibraryHelper.hasRenderscriptBitcode(handle)) {
5547                        pkg.applicationInfo.primaryCpuAbi = Build.SUPPORTED_32_BIT_ABIS[0];
5548                    }
5549                } catch (IOException ioe) {
5550                    Slog.w(TAG, "Error scanning system app : " + ioe);
5551                } finally {
5552                    IoUtils.closeQuietly(handle);
5553                }
5554            }
5555
5556            setNativeLibraryPaths(pkg);
5557        } else {
5558            // TODO: We can probably be smarter about this stuff. For installed apps,
5559            // we can calculate this information at install time once and for all. For
5560            // system apps, we can probably assume that this information doesn't change
5561            // after the first boot scan. As things stand, we do lots of unnecessary work.
5562
5563            // Give ourselves some initial paths; we'll come back for another
5564            // pass once we've determined ABI below.
5565            setNativeLibraryPaths(pkg);
5566
5567            final boolean isAsec = pkg.isForwardLocked() || isExternal(pkg);
5568            final String nativeLibraryRootStr = pkg.applicationInfo.nativeLibraryRootDir;
5569            final boolean useIsaSpecificSubdirs = pkg.applicationInfo.nativeLibraryRootRequiresIsa;
5570
5571            NativeLibraryHelper.Handle handle = null;
5572            try {
5573                handle = NativeLibraryHelper.Handle.create(scanFile);
5574                // TODO(multiArch): This can be null for apps that didn't go through the
5575                // usual installation process. We can calculate it again, like we
5576                // do during install time.
5577                //
5578                // TODO(multiArch): Why do we need to rescan ASEC apps again ? It seems totally
5579                // unnecessary.
5580                final File nativeLibraryRoot = new File(nativeLibraryRootStr);
5581
5582                // Null out the abis so that they can be recalculated.
5583                pkg.applicationInfo.primaryCpuAbi = null;
5584                pkg.applicationInfo.secondaryCpuAbi = null;
5585                if (isMultiArch(pkg.applicationInfo)) {
5586                    // Warn if we've set an abiOverride for multi-lib packages..
5587                    // By definition, we need to copy both 32 and 64 bit libraries for
5588                    // such packages.
5589                    if (pkg.cpuAbiOverride != null
5590                            && !NativeLibraryHelper.CLEAR_ABI_OVERRIDE.equals(pkg.cpuAbiOverride)) {
5591                        Slog.w(TAG, "Ignoring abiOverride for multi arch application.");
5592                    }
5593
5594                    int abi32 = PackageManager.NO_NATIVE_LIBRARIES;
5595                    int abi64 = PackageManager.NO_NATIVE_LIBRARIES;
5596                    if (Build.SUPPORTED_32_BIT_ABIS.length > 0) {
5597                        if (isAsec) {
5598                            abi32 = NativeLibraryHelper.findSupportedAbi(handle, Build.SUPPORTED_32_BIT_ABIS);
5599                        } else {
5600                            abi32 = NativeLibraryHelper.copyNativeBinariesForSupportedAbi(handle,
5601                                    nativeLibraryRoot, Build.SUPPORTED_32_BIT_ABIS,
5602                                    useIsaSpecificSubdirs);
5603                        }
5604                    }
5605
5606                    maybeThrowExceptionForMultiArchCopy(
5607                            "Error unpackaging 32 bit native libs for multiarch app.", abi32);
5608
5609                    if (Build.SUPPORTED_64_BIT_ABIS.length > 0) {
5610                        if (isAsec) {
5611                            abi64 = NativeLibraryHelper.findSupportedAbi(handle, Build.SUPPORTED_64_BIT_ABIS);
5612                        } else {
5613                            abi64 = NativeLibraryHelper.copyNativeBinariesForSupportedAbi(handle,
5614                                    nativeLibraryRoot, Build.SUPPORTED_64_BIT_ABIS,
5615                                    useIsaSpecificSubdirs);
5616                        }
5617                    }
5618
5619                    maybeThrowExceptionForMultiArchCopy(
5620                            "Error unpackaging 64 bit native libs for multiarch app.", abi64);
5621
5622                    if (abi64 >= 0) {
5623                        pkg.applicationInfo.primaryCpuAbi = Build.SUPPORTED_64_BIT_ABIS[abi64];
5624                    }
5625
5626                    if (abi32 >= 0) {
5627                        final String abi = Build.SUPPORTED_32_BIT_ABIS[abi32];
5628                        if (abi64 >= 0) {
5629                            pkg.applicationInfo.secondaryCpuAbi = abi;
5630                        } else {
5631                            pkg.applicationInfo.primaryCpuAbi = abi;
5632                        }
5633                    }
5634                } else {
5635                    String[] abiList = (cpuAbiOverride != null) ?
5636                            new String[] { cpuAbiOverride } : Build.SUPPORTED_ABIS;
5637
5638                    // Enable gross and lame hacks for apps that are built with old
5639                    // SDK tools. We must scan their APKs for renderscript bitcode and
5640                    // not launch them if it's present. Don't bother checking on devices
5641                    // that don't have 64 bit support.
5642                    boolean needsRenderScriptOverride = false;
5643                    if (Build.SUPPORTED_64_BIT_ABIS.length > 0 && cpuAbiOverride == null &&
5644                            NativeLibraryHelper.hasRenderscriptBitcode(handle)) {
5645                        abiList = Build.SUPPORTED_32_BIT_ABIS;
5646                        needsRenderScriptOverride = true;
5647                    }
5648
5649                    final int copyRet;
5650                    if (isAsec) {
5651                        copyRet = NativeLibraryHelper.findSupportedAbi(handle, abiList);
5652                    } else {
5653                        copyRet = NativeLibraryHelper.copyNativeBinariesForSupportedAbi(handle,
5654                                nativeLibraryRoot, abiList, useIsaSpecificSubdirs);
5655                    }
5656
5657                    if (copyRet < 0 && copyRet != PackageManager.NO_NATIVE_LIBRARIES) {
5658                        throw new PackageManagerException(INSTALL_FAILED_INTERNAL_ERROR,
5659                                "Error unpackaging native libs for app, errorCode=" + copyRet);
5660                    }
5661
5662                    if (copyRet >= 0) {
5663                        pkg.applicationInfo.primaryCpuAbi = abiList[copyRet];
5664                    } else if (copyRet == PackageManager.NO_NATIVE_LIBRARIES && cpuAbiOverride != null) {
5665                        pkg.applicationInfo.primaryCpuAbi = cpuAbiOverride;
5666                    } else if (needsRenderScriptOverride) {
5667                        pkg.applicationInfo.primaryCpuAbi = abiList[0];
5668                    }
5669                }
5670            } catch (IOException ioe) {
5671                Slog.e(TAG, "Unable to get canonical file " + ioe.toString());
5672            } finally {
5673                IoUtils.closeQuietly(handle);
5674            }
5675
5676            // Now that we've calculated the ABIs and determined if it's an internal app,
5677            // we will go ahead and populate the nativeLibraryPath.
5678            setNativeLibraryPaths(pkg);
5679
5680            if (DEBUG_INSTALL) Slog.i(TAG, "Linking native library dir for " + path);
5681            final int[] userIds = sUserManager.getUserIds();
5682            synchronized (mInstallLock) {
5683                // Create a native library symlink only if we have native libraries
5684                // and if the native libraries are 32 bit libraries. We do not provide
5685                // this symlink for 64 bit libraries.
5686                if (pkg.applicationInfo.primaryCpuAbi != null &&
5687                        !VMRuntime.is64BitAbi(pkg.applicationInfo.primaryCpuAbi)) {
5688                    final String nativeLibPath = pkg.applicationInfo.nativeLibraryDir;
5689                    for (int userId : userIds) {
5690                        if (mInstaller.linkNativeLibraryDirectory(pkg.packageName, nativeLibPath, userId) < 0) {
5691                            throw new PackageManagerException(INSTALL_FAILED_INTERNAL_ERROR,
5692                                    "Failed linking native library dir (user=" + userId + ")");
5693                        }
5694                    }
5695                }
5696            }
5697        }
5698
5699        // This is a special case for the "system" package, where the ABI is
5700        // dictated by the zygote configuration (and init.rc). We should keep track
5701        // of this ABI so that we can deal with "normal" applications that run under
5702        // the same UID correctly.
5703        if (mPlatformPackage == pkg) {
5704            pkg.applicationInfo.primaryCpuAbi = VMRuntime.getRuntime().is64Bit() ?
5705                    Build.SUPPORTED_64_BIT_ABIS[0] : Build.SUPPORTED_32_BIT_ABIS[0];
5706        }
5707
5708        pkgSetting.primaryCpuAbiString = pkg.applicationInfo.primaryCpuAbi;
5709        pkgSetting.secondaryCpuAbiString = pkg.applicationInfo.secondaryCpuAbi;
5710        pkgSetting.cpuAbiOverrideString = cpuAbiOverride;
5711        // Copy the derived override back to the parsed package, so that we can
5712        // update the package settings accordingly.
5713        pkg.cpuAbiOverride = cpuAbiOverride;
5714
5715        if (DEBUG_ABI_SELECTION) {
5716            Slog.d(TAG, "Resolved nativeLibraryRoot for " + pkg.applicationInfo.packageName
5717                    + " to root=" + pkg.applicationInfo.nativeLibraryRootDir + ", isa="
5718                    + pkg.applicationInfo.nativeLibraryRootRequiresIsa);
5719        }
5720
5721        // Push the derived path down into PackageSettings so we know what to
5722        // clean up at uninstall time.
5723        pkgSetting.legacyNativeLibraryPathString = pkg.applicationInfo.nativeLibraryRootDir;
5724
5725        if (DEBUG_ABI_SELECTION) {
5726            Log.d(TAG, "Abis for package[" + pkg.packageName + "] are" +
5727                    " primary=" + pkg.applicationInfo.primaryCpuAbi +
5728                    " secondary=" + pkg.applicationInfo.secondaryCpuAbi);
5729        }
5730
5731        if ((scanFlags&SCAN_BOOTING) == 0 && pkgSetting.sharedUser != null) {
5732            // We don't do this here during boot because we can do it all
5733            // at once after scanning all existing packages.
5734            //
5735            // We also do this *before* we perform dexopt on this package, so that
5736            // we can avoid redundant dexopts, and also to make sure we've got the
5737            // code and package path correct.
5738            adjustCpuAbisForSharedUserLPw(pkgSetting.sharedUser.packages,
5739                    pkg, forceDex, (scanFlags & SCAN_DEFER_DEX) != 0);
5740        }
5741
5742        if ((scanFlags & SCAN_NO_DEX) == 0) {
5743            int result = mPackageDexOptimizer.performDexOpt(pkg, null /* instruction sets */,
5744                    forceDex, (scanFlags & SCAN_DEFER_DEX) != 0, false /* inclDependencies */);
5745            if (result == PackageDexOptimizer.DEX_OPT_FAILED) {
5746                throw new PackageManagerException(INSTALL_FAILED_DEXOPT, "scanPackageLI");
5747            }
5748        }
5749        if (mFactoryTest && pkg.requestedPermissions.contains(
5750                android.Manifest.permission.FACTORY_TEST)) {
5751            pkg.applicationInfo.flags |= ApplicationInfo.FLAG_FACTORY_TEST;
5752        }
5753
5754        ArrayList<PackageParser.Package> clientLibPkgs = null;
5755
5756        // writer
5757        synchronized (mPackages) {
5758            if ((pkg.applicationInfo.flags&ApplicationInfo.FLAG_SYSTEM) != 0) {
5759                // Only system apps can add new shared libraries.
5760                if (pkg.libraryNames != null) {
5761                    for (int i=0; i<pkg.libraryNames.size(); i++) {
5762                        String name = pkg.libraryNames.get(i);
5763                        boolean allowed = false;
5764                        if (pkg.isUpdatedSystemApp()) {
5765                            // New library entries can only be added through the
5766                            // system image.  This is important to get rid of a lot
5767                            // of nasty edge cases: for example if we allowed a non-
5768                            // system update of the app to add a library, then uninstalling
5769                            // the update would make the library go away, and assumptions
5770                            // we made such as through app install filtering would now
5771                            // have allowed apps on the device which aren't compatible
5772                            // with it.  Better to just have the restriction here, be
5773                            // conservative, and create many fewer cases that can negatively
5774                            // impact the user experience.
5775                            final PackageSetting sysPs = mSettings
5776                                    .getDisabledSystemPkgLPr(pkg.packageName);
5777                            if (sysPs.pkg != null && sysPs.pkg.libraryNames != null) {
5778                                for (int j=0; j<sysPs.pkg.libraryNames.size(); j++) {
5779                                    if (name.equals(sysPs.pkg.libraryNames.get(j))) {
5780                                        allowed = true;
5781                                        allowed = true;
5782                                        break;
5783                                    }
5784                                }
5785                            }
5786                        } else {
5787                            allowed = true;
5788                        }
5789                        if (allowed) {
5790                            if (!mSharedLibraries.containsKey(name)) {
5791                                mSharedLibraries.put(name, new SharedLibraryEntry(null, pkg.packageName));
5792                            } else if (!name.equals(pkg.packageName)) {
5793                                Slog.w(TAG, "Package " + pkg.packageName + " library "
5794                                        + name + " already exists; skipping");
5795                            }
5796                        } else {
5797                            Slog.w(TAG, "Package " + pkg.packageName + " declares lib "
5798                                    + name + " that is not declared on system image; skipping");
5799                        }
5800                    }
5801                    if ((scanFlags&SCAN_BOOTING) == 0) {
5802                        // If we are not booting, we need to update any applications
5803                        // that are clients of our shared library.  If we are booting,
5804                        // this will all be done once the scan is complete.
5805                        clientLibPkgs = updateAllSharedLibrariesLPw(pkg);
5806                    }
5807                }
5808            }
5809        }
5810
5811        // We also need to dexopt any apps that are dependent on this library.  Note that
5812        // if these fail, we should abort the install since installing the library will
5813        // result in some apps being broken.
5814        if (clientLibPkgs != null) {
5815            if ((scanFlags & SCAN_NO_DEX) == 0) {
5816                for (int i = 0; i < clientLibPkgs.size(); i++) {
5817                    PackageParser.Package clientPkg = clientLibPkgs.get(i);
5818                    int result = mPackageDexOptimizer.performDexOpt(clientPkg,
5819                            null /* instruction sets */, forceDex,
5820                            (scanFlags & SCAN_DEFER_DEX) != 0, false);
5821                    if (result == PackageDexOptimizer.DEX_OPT_FAILED) {
5822                        throw new PackageManagerException(INSTALL_FAILED_DEXOPT,
5823                                "scanPackageLI failed to dexopt clientLibPkgs");
5824                    }
5825                }
5826            }
5827        }
5828
5829        // Request the ActivityManager to kill the process(only for existing packages)
5830        // so that we do not end up in a confused state while the user is still using the older
5831        // version of the application while the new one gets installed.
5832        if ((scanFlags & SCAN_REPLACING) != 0) {
5833            killApplication(pkg.applicationInfo.packageName,
5834                        pkg.applicationInfo.uid, "update pkg");
5835        }
5836
5837        // Also need to kill any apps that are dependent on the library.
5838        if (clientLibPkgs != null) {
5839            for (int i=0; i<clientLibPkgs.size(); i++) {
5840                PackageParser.Package clientPkg = clientLibPkgs.get(i);
5841                killApplication(clientPkg.applicationInfo.packageName,
5842                        clientPkg.applicationInfo.uid, "update lib");
5843            }
5844        }
5845
5846        // writer
5847        synchronized (mPackages) {
5848            // We don't expect installation to fail beyond this point
5849
5850            // Add the new setting to mSettings
5851            mSettings.insertPackageSettingLPw(pkgSetting, pkg);
5852            // Add the new setting to mPackages
5853            mPackages.put(pkg.applicationInfo.packageName, pkg);
5854            // Make sure we don't accidentally delete its data.
5855            final Iterator<PackageCleanItem> iter = mSettings.mPackagesToBeCleaned.iterator();
5856            while (iter.hasNext()) {
5857                PackageCleanItem item = iter.next();
5858                if (pkgName.equals(item.packageName)) {
5859                    iter.remove();
5860                }
5861            }
5862
5863            // Take care of first install / last update times.
5864            if (currentTime != 0) {
5865                if (pkgSetting.firstInstallTime == 0) {
5866                    pkgSetting.firstInstallTime = pkgSetting.lastUpdateTime = currentTime;
5867                } else if ((scanFlags&SCAN_UPDATE_TIME) != 0) {
5868                    pkgSetting.lastUpdateTime = currentTime;
5869                }
5870            } else if (pkgSetting.firstInstallTime == 0) {
5871                // We need *something*.  Take time time stamp of the file.
5872                pkgSetting.firstInstallTime = pkgSetting.lastUpdateTime = scanFileTime;
5873            } else if ((parseFlags&PackageParser.PARSE_IS_SYSTEM_DIR) != 0) {
5874                if (scanFileTime != pkgSetting.timeStamp) {
5875                    // A package on the system image has changed; consider this
5876                    // to be an update.
5877                    pkgSetting.lastUpdateTime = scanFileTime;
5878                }
5879            }
5880
5881            // Add the package's KeySets to the global KeySetManagerService
5882            KeySetManagerService ksms = mSettings.mKeySetManagerService;
5883            try {
5884                // Old KeySetData no longer valid.
5885                ksms.removeAppKeySetDataLPw(pkg.packageName);
5886                ksms.addSigningKeySetToPackageLPw(pkg.packageName, pkg.mSigningKeys);
5887                if (pkg.mKeySetMapping != null) {
5888                    for (Map.Entry<String, ArraySet<PublicKey>> entry :
5889                            pkg.mKeySetMapping.entrySet()) {
5890                        if (entry.getValue() != null) {
5891                            ksms.addDefinedKeySetToPackageLPw(pkg.packageName,
5892                                                          entry.getValue(), entry.getKey());
5893                        }
5894                    }
5895                    if (pkg.mUpgradeKeySets != null) {
5896                        for (String upgradeAlias : pkg.mUpgradeKeySets) {
5897                            ksms.addUpgradeKeySetToPackageLPw(pkg.packageName, upgradeAlias);
5898                        }
5899                    }
5900                }
5901            } catch (NullPointerException e) {
5902                Slog.e(TAG, "Could not add KeySet to " + pkg.packageName, e);
5903            } catch (IllegalArgumentException e) {
5904                Slog.e(TAG, "Could not add KeySet to malformed package" + pkg.packageName, e);
5905            }
5906
5907            int N = pkg.providers.size();
5908            StringBuilder r = null;
5909            int i;
5910            for (i=0; i<N; i++) {
5911                PackageParser.Provider p = pkg.providers.get(i);
5912                p.info.processName = fixProcessName(pkg.applicationInfo.processName,
5913                        p.info.processName, pkg.applicationInfo.uid);
5914                mProviders.addProvider(p);
5915                p.syncable = p.info.isSyncable;
5916                if (p.info.authority != null) {
5917                    String names[] = p.info.authority.split(";");
5918                    p.info.authority = null;
5919                    for (int j = 0; j < names.length; j++) {
5920                        if (j == 1 && p.syncable) {
5921                            // We only want the first authority for a provider to possibly be
5922                            // syncable, so if we already added this provider using a different
5923                            // authority clear the syncable flag. We copy the provider before
5924                            // changing it because the mProviders object contains a reference
5925                            // to a provider that we don't want to change.
5926                            // Only do this for the second authority since the resulting provider
5927                            // object can be the same for all future authorities for this provider.
5928                            p = new PackageParser.Provider(p);
5929                            p.syncable = false;
5930                        }
5931                        if (!mProvidersByAuthority.containsKey(names[j])) {
5932                            mProvidersByAuthority.put(names[j], p);
5933                            if (p.info.authority == null) {
5934                                p.info.authority = names[j];
5935                            } else {
5936                                p.info.authority = p.info.authority + ";" + names[j];
5937                            }
5938                            if (DEBUG_PACKAGE_SCANNING) {
5939                                if ((parseFlags & PackageParser.PARSE_CHATTY) != 0)
5940                                    Log.d(TAG, "Registered content provider: " + names[j]
5941                                            + ", className = " + p.info.name + ", isSyncable = "
5942                                            + p.info.isSyncable);
5943                            }
5944                        } else {
5945                            PackageParser.Provider other = mProvidersByAuthority.get(names[j]);
5946                            Slog.w(TAG, "Skipping provider name " + names[j] +
5947                                    " (in package " + pkg.applicationInfo.packageName +
5948                                    "): name already used by "
5949                                    + ((other != null && other.getComponentName() != null)
5950                                            ? other.getComponentName().getPackageName() : "?"));
5951                        }
5952                    }
5953                }
5954                if ((parseFlags&PackageParser.PARSE_CHATTY) != 0) {
5955                    if (r == null) {
5956                        r = new StringBuilder(256);
5957                    } else {
5958                        r.append(' ');
5959                    }
5960                    r.append(p.info.name);
5961                }
5962            }
5963            if (r != null) {
5964                if (DEBUG_PACKAGE_SCANNING) Log.d(TAG, "  Providers: " + r);
5965            }
5966
5967            N = pkg.services.size();
5968            r = null;
5969            for (i=0; i<N; i++) {
5970                PackageParser.Service s = pkg.services.get(i);
5971                s.info.processName = fixProcessName(pkg.applicationInfo.processName,
5972                        s.info.processName, pkg.applicationInfo.uid);
5973                mServices.addService(s);
5974                if ((parseFlags&PackageParser.PARSE_CHATTY) != 0) {
5975                    if (r == null) {
5976                        r = new StringBuilder(256);
5977                    } else {
5978                        r.append(' ');
5979                    }
5980                    r.append(s.info.name);
5981                }
5982            }
5983            if (r != null) {
5984                if (DEBUG_PACKAGE_SCANNING) Log.d(TAG, "  Services: " + r);
5985            }
5986
5987            N = pkg.receivers.size();
5988            r = null;
5989            for (i=0; i<N; i++) {
5990                PackageParser.Activity a = pkg.receivers.get(i);
5991                a.info.processName = fixProcessName(pkg.applicationInfo.processName,
5992                        a.info.processName, pkg.applicationInfo.uid);
5993                mReceivers.addActivity(a, "receiver");
5994                if ((parseFlags&PackageParser.PARSE_CHATTY) != 0) {
5995                    if (r == null) {
5996                        r = new StringBuilder(256);
5997                    } else {
5998                        r.append(' ');
5999                    }
6000                    r.append(a.info.name);
6001                }
6002            }
6003            if (r != null) {
6004                if (DEBUG_PACKAGE_SCANNING) Log.d(TAG, "  Receivers: " + r);
6005            }
6006
6007            N = pkg.activities.size();
6008            r = null;
6009            for (i=0; i<N; i++) {
6010                PackageParser.Activity a = pkg.activities.get(i);
6011                a.info.processName = fixProcessName(pkg.applicationInfo.processName,
6012                        a.info.processName, pkg.applicationInfo.uid);
6013                mActivities.addActivity(a, "activity");
6014                if ((parseFlags&PackageParser.PARSE_CHATTY) != 0) {
6015                    if (r == null) {
6016                        r = new StringBuilder(256);
6017                    } else {
6018                        r.append(' ');
6019                    }
6020                    r.append(a.info.name);
6021                }
6022            }
6023            if (r != null) {
6024                if (DEBUG_PACKAGE_SCANNING) Log.d(TAG, "  Activities: " + r);
6025            }
6026
6027            N = pkg.permissionGroups.size();
6028            r = null;
6029            for (i=0; i<N; i++) {
6030                PackageParser.PermissionGroup pg = pkg.permissionGroups.get(i);
6031                PackageParser.PermissionGroup cur = mPermissionGroups.get(pg.info.name);
6032                if (cur == null) {
6033                    mPermissionGroups.put(pg.info.name, pg);
6034                    if ((parseFlags&PackageParser.PARSE_CHATTY) != 0) {
6035                        if (r == null) {
6036                            r = new StringBuilder(256);
6037                        } else {
6038                            r.append(' ');
6039                        }
6040                        r.append(pg.info.name);
6041                    }
6042                } else {
6043                    Slog.w(TAG, "Permission group " + pg.info.name + " from package "
6044                            + pg.info.packageName + " ignored: original from "
6045                            + cur.info.packageName);
6046                    if ((parseFlags&PackageParser.PARSE_CHATTY) != 0) {
6047                        if (r == null) {
6048                            r = new StringBuilder(256);
6049                        } else {
6050                            r.append(' ');
6051                        }
6052                        r.append("DUP:");
6053                        r.append(pg.info.name);
6054                    }
6055                }
6056            }
6057            if (r != null) {
6058                if (DEBUG_PACKAGE_SCANNING) Log.d(TAG, "  Permission Groups: " + r);
6059            }
6060
6061            N = pkg.permissions.size();
6062            r = null;
6063            for (i=0; i<N; i++) {
6064                PackageParser.Permission p = pkg.permissions.get(i);
6065                ArrayMap<String, BasePermission> permissionMap =
6066                        p.tree ? mSettings.mPermissionTrees
6067                        : mSettings.mPermissions;
6068                p.group = mPermissionGroups.get(p.info.group);
6069                if (p.info.group == null || p.group != null) {
6070                    BasePermission bp = permissionMap.get(p.info.name);
6071
6072                    // Allow system apps to redefine non-system permissions
6073                    if (bp != null && !Objects.equals(bp.sourcePackage, p.info.packageName)) {
6074                        final boolean currentOwnerIsSystem = (bp.perm != null
6075                                && isSystemApp(bp.perm.owner));
6076                        if (isSystemApp(p.owner)) {
6077                            if (bp.type == BasePermission.TYPE_BUILTIN && bp.perm == null) {
6078                                // It's a built-in permission and no owner, take ownership now
6079                                bp.packageSetting = pkgSetting;
6080                                bp.perm = p;
6081                                bp.uid = pkg.applicationInfo.uid;
6082                                bp.sourcePackage = p.info.packageName;
6083                            } else if (!currentOwnerIsSystem) {
6084                                String msg = "New decl " + p.owner + " of permission  "
6085                                        + p.info.name + " is system; overriding " + bp.sourcePackage;
6086                                reportSettingsProblem(Log.WARN, msg);
6087                                bp = null;
6088                            }
6089                        }
6090                    }
6091
6092                    if (bp == null) {
6093                        bp = new BasePermission(p.info.name, p.info.packageName,
6094                                BasePermission.TYPE_NORMAL);
6095                        permissionMap.put(p.info.name, bp);
6096                    }
6097
6098                    if (bp.perm == null) {
6099                        if (bp.sourcePackage == null
6100                                || bp.sourcePackage.equals(p.info.packageName)) {
6101                            BasePermission tree = findPermissionTreeLP(p.info.name);
6102                            if (tree == null
6103                                    || tree.sourcePackage.equals(p.info.packageName)) {
6104                                bp.packageSetting = pkgSetting;
6105                                bp.perm = p;
6106                                bp.uid = pkg.applicationInfo.uid;
6107                                bp.sourcePackage = p.info.packageName;
6108                                if ((parseFlags&PackageParser.PARSE_CHATTY) != 0) {
6109                                    if (r == null) {
6110                                        r = new StringBuilder(256);
6111                                    } else {
6112                                        r.append(' ');
6113                                    }
6114                                    r.append(p.info.name);
6115                                }
6116                            } else {
6117                                Slog.w(TAG, "Permission " + p.info.name + " from package "
6118                                        + p.info.packageName + " ignored: base tree "
6119                                        + tree.name + " is from package "
6120                                        + tree.sourcePackage);
6121                            }
6122                        } else {
6123                            Slog.w(TAG, "Permission " + p.info.name + " from package "
6124                                    + p.info.packageName + " ignored: original from "
6125                                    + bp.sourcePackage);
6126                        }
6127                    } else if ((parseFlags&PackageParser.PARSE_CHATTY) != 0) {
6128                        if (r == null) {
6129                            r = new StringBuilder(256);
6130                        } else {
6131                            r.append(' ');
6132                        }
6133                        r.append("DUP:");
6134                        r.append(p.info.name);
6135                    }
6136                    if (bp.perm == p) {
6137                        bp.protectionLevel = p.info.protectionLevel;
6138                    }
6139                } else {
6140                    Slog.w(TAG, "Permission " + p.info.name + " from package "
6141                            + p.info.packageName + " ignored: no group "
6142                            + p.group);
6143                }
6144            }
6145            if (r != null) {
6146                if (DEBUG_PACKAGE_SCANNING) Log.d(TAG, "  Permissions: " + r);
6147            }
6148
6149            N = pkg.instrumentation.size();
6150            r = null;
6151            for (i=0; i<N; i++) {
6152                PackageParser.Instrumentation a = pkg.instrumentation.get(i);
6153                a.info.packageName = pkg.applicationInfo.packageName;
6154                a.info.sourceDir = pkg.applicationInfo.sourceDir;
6155                a.info.publicSourceDir = pkg.applicationInfo.publicSourceDir;
6156                a.info.splitSourceDirs = pkg.applicationInfo.splitSourceDirs;
6157                a.info.splitPublicSourceDirs = pkg.applicationInfo.splitPublicSourceDirs;
6158                a.info.dataDir = pkg.applicationInfo.dataDir;
6159
6160                // TODO: Update instrumentation.nativeLibraryDir as well ? Does it
6161                // need other information about the application, like the ABI and what not ?
6162                a.info.nativeLibraryDir = pkg.applicationInfo.nativeLibraryDir;
6163                mInstrumentation.put(a.getComponentName(), a);
6164                if ((parseFlags&PackageParser.PARSE_CHATTY) != 0) {
6165                    if (r == null) {
6166                        r = new StringBuilder(256);
6167                    } else {
6168                        r.append(' ');
6169                    }
6170                    r.append(a.info.name);
6171                }
6172            }
6173            if (r != null) {
6174                if (DEBUG_PACKAGE_SCANNING) Log.d(TAG, "  Instrumentation: " + r);
6175            }
6176
6177            if (pkg.protectedBroadcasts != null) {
6178                N = pkg.protectedBroadcasts.size();
6179                for (i=0; i<N; i++) {
6180                    mProtectedBroadcasts.add(pkg.protectedBroadcasts.get(i));
6181                }
6182            }
6183
6184            pkgSetting.setTimeStamp(scanFileTime);
6185
6186            // Create idmap files for pairs of (packages, overlay packages).
6187            // Note: "android", ie framework-res.apk, is handled by native layers.
6188            if (pkg.mOverlayTarget != null) {
6189                // This is an overlay package.
6190                if (pkg.mOverlayTarget != null && !pkg.mOverlayTarget.equals("android")) {
6191                    if (!mOverlays.containsKey(pkg.mOverlayTarget)) {
6192                        mOverlays.put(pkg.mOverlayTarget,
6193                                new ArrayMap<String, PackageParser.Package>());
6194                    }
6195                    ArrayMap<String, PackageParser.Package> map = mOverlays.get(pkg.mOverlayTarget);
6196                    map.put(pkg.packageName, pkg);
6197                    PackageParser.Package orig = mPackages.get(pkg.mOverlayTarget);
6198                    if (orig != null && !createIdmapForPackagePairLI(orig, pkg)) {
6199                        throw new PackageManagerException(INSTALL_FAILED_UPDATE_INCOMPATIBLE,
6200                                "scanPackageLI failed to createIdmap");
6201                    }
6202                }
6203            } else if (mOverlays.containsKey(pkg.packageName) &&
6204                    !pkg.packageName.equals("android")) {
6205                // This is a regular package, with one or more known overlay packages.
6206                createIdmapsForPackageLI(pkg);
6207            }
6208        }
6209
6210        return pkg;
6211    }
6212
6213    /**
6214     * Adjusts ABIs for a set of packages belonging to a shared user so that they all match.
6215     * i.e, so that all packages can be run inside a single process if required.
6216     *
6217     * Optionally, callers can pass in a parsed package via {@code newPackage} in which case
6218     * this function will either try and make the ABI for all packages in {@code packagesForUser}
6219     * match {@code scannedPackage} or will update the ABI of {@code scannedPackage} to match
6220     * the ABI selected for {@code packagesForUser}. This variant is used when installing or
6221     * updating a package that belongs to a shared user.
6222     *
6223     * NOTE: We currently only match for the primary CPU abi string. Matching the secondary
6224     * adds unnecessary complexity.
6225     */
6226    private void adjustCpuAbisForSharedUserLPw(Set<PackageSetting> packagesForUser,
6227            PackageParser.Package scannedPackage, boolean forceDexOpt, boolean deferDexOpt) {
6228        String requiredInstructionSet = null;
6229        if (scannedPackage != null && scannedPackage.applicationInfo.primaryCpuAbi != null) {
6230            requiredInstructionSet = VMRuntime.getInstructionSet(
6231                     scannedPackage.applicationInfo.primaryCpuAbi);
6232        }
6233
6234        PackageSetting requirer = null;
6235        for (PackageSetting ps : packagesForUser) {
6236            // If packagesForUser contains scannedPackage, we skip it. This will happen
6237            // when scannedPackage is an update of an existing package. Without this check,
6238            // we will never be able to change the ABI of any package belonging to a shared
6239            // user, even if it's compatible with other packages.
6240            if (scannedPackage == null || !scannedPackage.packageName.equals(ps.name)) {
6241                if (ps.primaryCpuAbiString == null) {
6242                    continue;
6243                }
6244
6245                final String instructionSet = VMRuntime.getInstructionSet(ps.primaryCpuAbiString);
6246                if (requiredInstructionSet != null && !instructionSet.equals(requiredInstructionSet)) {
6247                    // We have a mismatch between instruction sets (say arm vs arm64) warn about
6248                    // this but there's not much we can do.
6249                    String errorMessage = "Instruction set mismatch, "
6250                            + ((requirer == null) ? "[caller]" : requirer)
6251                            + " requires " + requiredInstructionSet + " whereas " + ps
6252                            + " requires " + instructionSet;
6253                    Slog.w(TAG, errorMessage);
6254                }
6255
6256                if (requiredInstructionSet == null) {
6257                    requiredInstructionSet = instructionSet;
6258                    requirer = ps;
6259                }
6260            }
6261        }
6262
6263        if (requiredInstructionSet != null) {
6264            String adjustedAbi;
6265            if (requirer != null) {
6266                // requirer != null implies that either scannedPackage was null or that scannedPackage
6267                // did not require an ABI, in which case we have to adjust scannedPackage to match
6268                // the ABI of the set (which is the same as requirer's ABI)
6269                adjustedAbi = requirer.primaryCpuAbiString;
6270                if (scannedPackage != null) {
6271                    scannedPackage.applicationInfo.primaryCpuAbi = adjustedAbi;
6272                }
6273            } else {
6274                // requirer == null implies that we're updating all ABIs in the set to
6275                // match scannedPackage.
6276                adjustedAbi =  scannedPackage.applicationInfo.primaryCpuAbi;
6277            }
6278
6279            for (PackageSetting ps : packagesForUser) {
6280                if (scannedPackage == null || !scannedPackage.packageName.equals(ps.name)) {
6281                    if (ps.primaryCpuAbiString != null) {
6282                        continue;
6283                    }
6284
6285                    ps.primaryCpuAbiString = adjustedAbi;
6286                    if (ps.pkg != null && ps.pkg.applicationInfo != null) {
6287                        ps.pkg.applicationInfo.primaryCpuAbi = adjustedAbi;
6288                        Slog.i(TAG, "Adjusting ABI for : " + ps.name + " to " + adjustedAbi);
6289
6290                        int result = mPackageDexOptimizer.performDexOpt(ps.pkg,
6291                                null /* instruction sets */, forceDexOpt, deferDexOpt, true);
6292                        if (result == PackageDexOptimizer.DEX_OPT_FAILED) {
6293                            ps.primaryCpuAbiString = null;
6294                            ps.pkg.applicationInfo.primaryCpuAbi = null;
6295                            return;
6296                        } else {
6297                            mInstaller.rmdex(ps.codePathString,
6298                                    getDexCodeInstructionSet(getPreferredInstructionSet()));
6299                        }
6300                    }
6301                }
6302            }
6303        }
6304    }
6305
6306    private void setUpCustomResolverActivity(PackageParser.Package pkg) {
6307        synchronized (mPackages) {
6308            mResolverReplaced = true;
6309            // Set up information for custom user intent resolution activity.
6310            mResolveActivity.applicationInfo = pkg.applicationInfo;
6311            mResolveActivity.name = mCustomResolverComponentName.getClassName();
6312            mResolveActivity.packageName = pkg.applicationInfo.packageName;
6313            mResolveActivity.processName = pkg.applicationInfo.packageName;
6314            mResolveActivity.launchMode = ActivityInfo.LAUNCH_MULTIPLE;
6315            mResolveActivity.flags = ActivityInfo.FLAG_EXCLUDE_FROM_RECENTS |
6316                    ActivityInfo.FLAG_FINISH_ON_CLOSE_SYSTEM_DIALOGS;
6317            mResolveActivity.theme = 0;
6318            mResolveActivity.exported = true;
6319            mResolveActivity.enabled = true;
6320            mResolveInfo.activityInfo = mResolveActivity;
6321            mResolveInfo.priority = 0;
6322            mResolveInfo.preferredOrder = 0;
6323            mResolveInfo.match = 0;
6324            mResolveComponentName = mCustomResolverComponentName;
6325            Slog.i(TAG, "Replacing default ResolverActivity with custom activity: " +
6326                    mResolveComponentName);
6327        }
6328    }
6329
6330    private static String calculateBundledApkRoot(final String codePathString) {
6331        final File codePath = new File(codePathString);
6332        final File codeRoot;
6333        if (FileUtils.contains(Environment.getRootDirectory(), codePath)) {
6334            codeRoot = Environment.getRootDirectory();
6335        } else if (FileUtils.contains(Environment.getOemDirectory(), codePath)) {
6336            codeRoot = Environment.getOemDirectory();
6337        } else if (FileUtils.contains(Environment.getVendorDirectory(), codePath)) {
6338            codeRoot = Environment.getVendorDirectory();
6339        } else {
6340            // Unrecognized code path; take its top real segment as the apk root:
6341            // e.g. /something/app/blah.apk => /something
6342            try {
6343                File f = codePath.getCanonicalFile();
6344                File parent = f.getParentFile();    // non-null because codePath is a file
6345                File tmp;
6346                while ((tmp = parent.getParentFile()) != null) {
6347                    f = parent;
6348                    parent = tmp;
6349                }
6350                codeRoot = f;
6351                Slog.w(TAG, "Unrecognized code path "
6352                        + codePath + " - using " + codeRoot);
6353            } catch (IOException e) {
6354                // Can't canonicalize the code path -- shenanigans?
6355                Slog.w(TAG, "Can't canonicalize code path " + codePath);
6356                return Environment.getRootDirectory().getPath();
6357            }
6358        }
6359        return codeRoot.getPath();
6360    }
6361
6362    /**
6363     * Derive and set the location of native libraries for the given package,
6364     * which varies depending on where and how the package was installed.
6365     */
6366    private void setNativeLibraryPaths(PackageParser.Package pkg) {
6367        final ApplicationInfo info = pkg.applicationInfo;
6368        final String codePath = pkg.codePath;
6369        final File codeFile = new File(codePath);
6370        final boolean bundledApp = info.isSystemApp() && !info.isUpdatedSystemApp();
6371        final boolean asecApp = info.isForwardLocked() || isExternal(info);
6372
6373        info.nativeLibraryRootDir = null;
6374        info.nativeLibraryRootRequiresIsa = false;
6375        info.nativeLibraryDir = null;
6376        info.secondaryNativeLibraryDir = null;
6377
6378        if (isApkFile(codeFile)) {
6379            // Monolithic install
6380            if (bundledApp) {
6381                // If "/system/lib64/apkname" exists, assume that is the per-package
6382                // native library directory to use; otherwise use "/system/lib/apkname".
6383                final String apkRoot = calculateBundledApkRoot(info.sourceDir);
6384                final boolean is64Bit = VMRuntime.is64BitInstructionSet(
6385                        getPrimaryInstructionSet(info));
6386
6387                // This is a bundled system app so choose the path based on the ABI.
6388                // if it's a 64 bit abi, use lib64 otherwise use lib32. Note that this
6389                // is just the default path.
6390                final String apkName = deriveCodePathName(codePath);
6391                final String libDir = is64Bit ? LIB64_DIR_NAME : LIB_DIR_NAME;
6392                info.nativeLibraryRootDir = Environment.buildPath(new File(apkRoot), libDir,
6393                        apkName).getAbsolutePath();
6394
6395                if (info.secondaryCpuAbi != null) {
6396                    final String secondaryLibDir = is64Bit ? LIB_DIR_NAME : LIB64_DIR_NAME;
6397                    info.secondaryNativeLibraryDir = Environment.buildPath(new File(apkRoot),
6398                            secondaryLibDir, apkName).getAbsolutePath();
6399                }
6400            } else if (asecApp) {
6401                info.nativeLibraryRootDir = new File(codeFile.getParentFile(), LIB_DIR_NAME)
6402                        .getAbsolutePath();
6403            } else {
6404                final String apkName = deriveCodePathName(codePath);
6405                info.nativeLibraryRootDir = new File(mAppLib32InstallDir, apkName)
6406                        .getAbsolutePath();
6407            }
6408
6409            info.nativeLibraryRootRequiresIsa = false;
6410            info.nativeLibraryDir = info.nativeLibraryRootDir;
6411        } else {
6412            // Cluster install
6413            info.nativeLibraryRootDir = new File(codeFile, LIB_DIR_NAME).getAbsolutePath();
6414            info.nativeLibraryRootRequiresIsa = true;
6415
6416            info.nativeLibraryDir = new File(info.nativeLibraryRootDir,
6417                    getPrimaryInstructionSet(info)).getAbsolutePath();
6418
6419            if (info.secondaryCpuAbi != null) {
6420                info.secondaryNativeLibraryDir = new File(info.nativeLibraryRootDir,
6421                        VMRuntime.getInstructionSet(info.secondaryCpuAbi)).getAbsolutePath();
6422            }
6423        }
6424    }
6425
6426    /**
6427     * Calculate the abis and roots for a bundled app. These can uniquely
6428     * be determined from the contents of the system partition, i.e whether
6429     * it contains 64 or 32 bit shared libraries etc. We do not validate any
6430     * of this information, and instead assume that the system was built
6431     * sensibly.
6432     */
6433    private void setBundledAppAbisAndRoots(PackageParser.Package pkg,
6434                                           PackageSetting pkgSetting) {
6435        final String apkName = deriveCodePathName(pkg.applicationInfo.getCodePath());
6436
6437        // If "/system/lib64/apkname" exists, assume that is the per-package
6438        // native library directory to use; otherwise use "/system/lib/apkname".
6439        final String apkRoot = calculateBundledApkRoot(pkg.applicationInfo.sourceDir);
6440        setBundledAppAbi(pkg, apkRoot, apkName);
6441        // pkgSetting might be null during rescan following uninstall of updates
6442        // to a bundled app, so accommodate that possibility.  The settings in
6443        // that case will be established later from the parsed package.
6444        //
6445        // If the settings aren't null, sync them up with what we've just derived.
6446        // note that apkRoot isn't stored in the package settings.
6447        if (pkgSetting != null) {
6448            pkgSetting.primaryCpuAbiString = pkg.applicationInfo.primaryCpuAbi;
6449            pkgSetting.secondaryCpuAbiString = pkg.applicationInfo.secondaryCpuAbi;
6450        }
6451    }
6452
6453    /**
6454     * Deduces the ABI of a bundled app and sets the relevant fields on the
6455     * parsed pkg object.
6456     *
6457     * @param apkRoot the root of the installed apk, something like {@code /system} or {@code /oem}
6458     *        under which system libraries are installed.
6459     * @param apkName the name of the installed package.
6460     */
6461    private static void setBundledAppAbi(PackageParser.Package pkg, String apkRoot, String apkName) {
6462        final File codeFile = new File(pkg.codePath);
6463
6464        final boolean has64BitLibs;
6465        final boolean has32BitLibs;
6466        if (isApkFile(codeFile)) {
6467            // Monolithic install
6468            has64BitLibs = (new File(apkRoot, new File(LIB64_DIR_NAME, apkName).getPath())).exists();
6469            has32BitLibs = (new File(apkRoot, new File(LIB_DIR_NAME, apkName).getPath())).exists();
6470        } else {
6471            // Cluster install
6472            final File rootDir = new File(codeFile, LIB_DIR_NAME);
6473            if (!ArrayUtils.isEmpty(Build.SUPPORTED_64_BIT_ABIS)
6474                    && !TextUtils.isEmpty(Build.SUPPORTED_64_BIT_ABIS[0])) {
6475                final String isa = VMRuntime.getInstructionSet(Build.SUPPORTED_64_BIT_ABIS[0]);
6476                has64BitLibs = (new File(rootDir, isa)).exists();
6477            } else {
6478                has64BitLibs = false;
6479            }
6480            if (!ArrayUtils.isEmpty(Build.SUPPORTED_32_BIT_ABIS)
6481                    && !TextUtils.isEmpty(Build.SUPPORTED_32_BIT_ABIS[0])) {
6482                final String isa = VMRuntime.getInstructionSet(Build.SUPPORTED_32_BIT_ABIS[0]);
6483                has32BitLibs = (new File(rootDir, isa)).exists();
6484            } else {
6485                has32BitLibs = false;
6486            }
6487        }
6488
6489        if (has64BitLibs && !has32BitLibs) {
6490            // The package has 64 bit libs, but not 32 bit libs. Its primary
6491            // ABI should be 64 bit. We can safely assume here that the bundled
6492            // native libraries correspond to the most preferred ABI in the list.
6493
6494            pkg.applicationInfo.primaryCpuAbi = Build.SUPPORTED_64_BIT_ABIS[0];
6495            pkg.applicationInfo.secondaryCpuAbi = null;
6496        } else if (has32BitLibs && !has64BitLibs) {
6497            // The package has 32 bit libs but not 64 bit libs. Its primary
6498            // ABI should be 32 bit.
6499
6500            pkg.applicationInfo.primaryCpuAbi = Build.SUPPORTED_32_BIT_ABIS[0];
6501            pkg.applicationInfo.secondaryCpuAbi = null;
6502        } else if (has32BitLibs && has64BitLibs) {
6503            // The application has both 64 and 32 bit bundled libraries. We check
6504            // here that the app declares multiArch support, and warn if it doesn't.
6505            //
6506            // We will be lenient here and record both ABIs. The primary will be the
6507            // ABI that's higher on the list, i.e, a device that's configured to prefer
6508            // 64 bit apps will see a 64 bit primary ABI,
6509
6510            if ((pkg.applicationInfo.flags & ApplicationInfo.FLAG_MULTIARCH) == 0) {
6511                Slog.e(TAG, "Package: " + pkg + " has multiple bundled libs, but is not multiarch.");
6512            }
6513
6514            if (VMRuntime.is64BitInstructionSet(getPreferredInstructionSet())) {
6515                pkg.applicationInfo.primaryCpuAbi = Build.SUPPORTED_64_BIT_ABIS[0];
6516                pkg.applicationInfo.secondaryCpuAbi = Build.SUPPORTED_32_BIT_ABIS[0];
6517            } else {
6518                pkg.applicationInfo.primaryCpuAbi = Build.SUPPORTED_32_BIT_ABIS[0];
6519                pkg.applicationInfo.secondaryCpuAbi = Build.SUPPORTED_64_BIT_ABIS[0];
6520            }
6521        } else {
6522            pkg.applicationInfo.primaryCpuAbi = null;
6523            pkg.applicationInfo.secondaryCpuAbi = null;
6524        }
6525    }
6526
6527    private void killApplication(String pkgName, int appId, String reason) {
6528        // Request the ActivityManager to kill the process(only for existing packages)
6529        // so that we do not end up in a confused state while the user is still using the older
6530        // version of the application while the new one gets installed.
6531        IActivityManager am = ActivityManagerNative.getDefault();
6532        if (am != null) {
6533            try {
6534                am.killApplicationWithAppId(pkgName, appId, reason);
6535            } catch (RemoteException e) {
6536            }
6537        }
6538    }
6539
6540    void removePackageLI(PackageSetting ps, boolean chatty) {
6541        if (DEBUG_INSTALL) {
6542            if (chatty)
6543                Log.d(TAG, "Removing package " + ps.name);
6544        }
6545
6546        // writer
6547        synchronized (mPackages) {
6548            mPackages.remove(ps.name);
6549            final PackageParser.Package pkg = ps.pkg;
6550            if (pkg != null) {
6551                cleanPackageDataStructuresLILPw(pkg, chatty);
6552            }
6553        }
6554    }
6555
6556    void removeInstalledPackageLI(PackageParser.Package pkg, boolean chatty) {
6557        if (DEBUG_INSTALL) {
6558            if (chatty)
6559                Log.d(TAG, "Removing package " + pkg.applicationInfo.packageName);
6560        }
6561
6562        // writer
6563        synchronized (mPackages) {
6564            mPackages.remove(pkg.applicationInfo.packageName);
6565            cleanPackageDataStructuresLILPw(pkg, chatty);
6566        }
6567    }
6568
6569    void cleanPackageDataStructuresLILPw(PackageParser.Package pkg, boolean chatty) {
6570        int N = pkg.providers.size();
6571        StringBuilder r = null;
6572        int i;
6573        for (i=0; i<N; i++) {
6574            PackageParser.Provider p = pkg.providers.get(i);
6575            mProviders.removeProvider(p);
6576            if (p.info.authority == null) {
6577
6578                /* There was another ContentProvider with this authority when
6579                 * this app was installed so this authority is null,
6580                 * Ignore it as we don't have to unregister the provider.
6581                 */
6582                continue;
6583            }
6584            String names[] = p.info.authority.split(";");
6585            for (int j = 0; j < names.length; j++) {
6586                if (mProvidersByAuthority.get(names[j]) == p) {
6587                    mProvidersByAuthority.remove(names[j]);
6588                    if (DEBUG_REMOVE) {
6589                        if (chatty)
6590                            Log.d(TAG, "Unregistered content provider: " + names[j]
6591                                    + ", className = " + p.info.name + ", isSyncable = "
6592                                    + p.info.isSyncable);
6593                    }
6594                }
6595            }
6596            if (DEBUG_REMOVE && chatty) {
6597                if (r == null) {
6598                    r = new StringBuilder(256);
6599                } else {
6600                    r.append(' ');
6601                }
6602                r.append(p.info.name);
6603            }
6604        }
6605        if (r != null) {
6606            if (DEBUG_REMOVE) Log.d(TAG, "  Providers: " + r);
6607        }
6608
6609        N = pkg.services.size();
6610        r = null;
6611        for (i=0; i<N; i++) {
6612            PackageParser.Service s = pkg.services.get(i);
6613            mServices.removeService(s);
6614            if (chatty) {
6615                if (r == null) {
6616                    r = new StringBuilder(256);
6617                } else {
6618                    r.append(' ');
6619                }
6620                r.append(s.info.name);
6621            }
6622        }
6623        if (r != null) {
6624            if (DEBUG_REMOVE) Log.d(TAG, "  Services: " + r);
6625        }
6626
6627        N = pkg.receivers.size();
6628        r = null;
6629        for (i=0; i<N; i++) {
6630            PackageParser.Activity a = pkg.receivers.get(i);
6631            mReceivers.removeActivity(a, "receiver");
6632            if (DEBUG_REMOVE && chatty) {
6633                if (r == null) {
6634                    r = new StringBuilder(256);
6635                } else {
6636                    r.append(' ');
6637                }
6638                r.append(a.info.name);
6639            }
6640        }
6641        if (r != null) {
6642            if (DEBUG_REMOVE) Log.d(TAG, "  Receivers: " + r);
6643        }
6644
6645        N = pkg.activities.size();
6646        r = null;
6647        for (i=0; i<N; i++) {
6648            PackageParser.Activity a = pkg.activities.get(i);
6649            mActivities.removeActivity(a, "activity");
6650            if (DEBUG_REMOVE && chatty) {
6651                if (r == null) {
6652                    r = new StringBuilder(256);
6653                } else {
6654                    r.append(' ');
6655                }
6656                r.append(a.info.name);
6657            }
6658        }
6659        if (r != null) {
6660            if (DEBUG_REMOVE) Log.d(TAG, "  Activities: " + r);
6661        }
6662
6663        N = pkg.permissions.size();
6664        r = null;
6665        for (i=0; i<N; i++) {
6666            PackageParser.Permission p = pkg.permissions.get(i);
6667            BasePermission bp = mSettings.mPermissions.get(p.info.name);
6668            if (bp == null) {
6669                bp = mSettings.mPermissionTrees.get(p.info.name);
6670            }
6671            if (bp != null && bp.perm == p) {
6672                bp.perm = null;
6673                if (DEBUG_REMOVE && chatty) {
6674                    if (r == null) {
6675                        r = new StringBuilder(256);
6676                    } else {
6677                        r.append(' ');
6678                    }
6679                    r.append(p.info.name);
6680                }
6681            }
6682            if ((p.info.protectionLevel&PermissionInfo.PROTECTION_FLAG_APPOP) != 0) {
6683                ArraySet<String> appOpPerms = mAppOpPermissionPackages.get(p.info.name);
6684                if (appOpPerms != null) {
6685                    appOpPerms.remove(pkg.packageName);
6686                }
6687            }
6688        }
6689        if (r != null) {
6690            if (DEBUG_REMOVE) Log.d(TAG, "  Permissions: " + r);
6691        }
6692
6693        N = pkg.requestedPermissions.size();
6694        r = null;
6695        for (i=0; i<N; i++) {
6696            String perm = pkg.requestedPermissions.get(i);
6697            BasePermission bp = mSettings.mPermissions.get(perm);
6698            if (bp != null && (bp.protectionLevel&PermissionInfo.PROTECTION_FLAG_APPOP) != 0) {
6699                ArraySet<String> appOpPerms = mAppOpPermissionPackages.get(perm);
6700                if (appOpPerms != null) {
6701                    appOpPerms.remove(pkg.packageName);
6702                    if (appOpPerms.isEmpty()) {
6703                        mAppOpPermissionPackages.remove(perm);
6704                    }
6705                }
6706            }
6707        }
6708        if (r != null) {
6709            if (DEBUG_REMOVE) Log.d(TAG, "  Permissions: " + r);
6710        }
6711
6712        N = pkg.instrumentation.size();
6713        r = null;
6714        for (i=0; i<N; i++) {
6715            PackageParser.Instrumentation a = pkg.instrumentation.get(i);
6716            mInstrumentation.remove(a.getComponentName());
6717            if (DEBUG_REMOVE && chatty) {
6718                if (r == null) {
6719                    r = new StringBuilder(256);
6720                } else {
6721                    r.append(' ');
6722                }
6723                r.append(a.info.name);
6724            }
6725        }
6726        if (r != null) {
6727            if (DEBUG_REMOVE) Log.d(TAG, "  Instrumentation: " + r);
6728        }
6729
6730        r = null;
6731        if ((pkg.applicationInfo.flags&ApplicationInfo.FLAG_SYSTEM) != 0) {
6732            // Only system apps can hold shared libraries.
6733            if (pkg.libraryNames != null) {
6734                for (i=0; i<pkg.libraryNames.size(); i++) {
6735                    String name = pkg.libraryNames.get(i);
6736                    SharedLibraryEntry cur = mSharedLibraries.get(name);
6737                    if (cur != null && cur.apk != null && cur.apk.equals(pkg.packageName)) {
6738                        mSharedLibraries.remove(name);
6739                        if (DEBUG_REMOVE && chatty) {
6740                            if (r == null) {
6741                                r = new StringBuilder(256);
6742                            } else {
6743                                r.append(' ');
6744                            }
6745                            r.append(name);
6746                        }
6747                    }
6748                }
6749            }
6750        }
6751        if (r != null) {
6752            if (DEBUG_REMOVE) Log.d(TAG, "  Libraries: " + r);
6753        }
6754    }
6755
6756    private static boolean hasPermission(PackageParser.Package pkgInfo, String perm) {
6757        for (int i=pkgInfo.permissions.size()-1; i>=0; i--) {
6758            if (pkgInfo.permissions.get(i).info.name.equals(perm)) {
6759                return true;
6760            }
6761        }
6762        return false;
6763    }
6764
6765    static final int UPDATE_PERMISSIONS_ALL = 1<<0;
6766    static final int UPDATE_PERMISSIONS_REPLACE_PKG = 1<<1;
6767    static final int UPDATE_PERMISSIONS_REPLACE_ALL = 1<<2;
6768
6769    private void updatePermissionsLPw(String changingPkg,
6770            PackageParser.Package pkgInfo, int flags) {
6771        // Make sure there are no dangling permission trees.
6772        Iterator<BasePermission> it = mSettings.mPermissionTrees.values().iterator();
6773        while (it.hasNext()) {
6774            final BasePermission bp = it.next();
6775            if (bp.packageSetting == null) {
6776                // We may not yet have parsed the package, so just see if
6777                // we still know about its settings.
6778                bp.packageSetting = mSettings.mPackages.get(bp.sourcePackage);
6779            }
6780            if (bp.packageSetting == null) {
6781                Slog.w(TAG, "Removing dangling permission tree: " + bp.name
6782                        + " from package " + bp.sourcePackage);
6783                it.remove();
6784            } else if (changingPkg != null && changingPkg.equals(bp.sourcePackage)) {
6785                if (pkgInfo == null || !hasPermission(pkgInfo, bp.name)) {
6786                    Slog.i(TAG, "Removing old permission tree: " + bp.name
6787                            + " from package " + bp.sourcePackage);
6788                    flags |= UPDATE_PERMISSIONS_ALL;
6789                    it.remove();
6790                }
6791            }
6792        }
6793
6794        // Make sure all dynamic permissions have been assigned to a package,
6795        // and make sure there are no dangling permissions.
6796        it = mSettings.mPermissions.values().iterator();
6797        while (it.hasNext()) {
6798            final BasePermission bp = it.next();
6799            if (bp.type == BasePermission.TYPE_DYNAMIC) {
6800                if (DEBUG_SETTINGS) Log.v(TAG, "Dynamic permission: name="
6801                        + bp.name + " pkg=" + bp.sourcePackage
6802                        + " info=" + bp.pendingInfo);
6803                if (bp.packageSetting == null && bp.pendingInfo != null) {
6804                    final BasePermission tree = findPermissionTreeLP(bp.name);
6805                    if (tree != null && tree.perm != null) {
6806                        bp.packageSetting = tree.packageSetting;
6807                        bp.perm = new PackageParser.Permission(tree.perm.owner,
6808                                new PermissionInfo(bp.pendingInfo));
6809                        bp.perm.info.packageName = tree.perm.info.packageName;
6810                        bp.perm.info.name = bp.name;
6811                        bp.uid = tree.uid;
6812                    }
6813                }
6814            }
6815            if (bp.packageSetting == null) {
6816                // We may not yet have parsed the package, so just see if
6817                // we still know about its settings.
6818                bp.packageSetting = mSettings.mPackages.get(bp.sourcePackage);
6819            }
6820            if (bp.packageSetting == null) {
6821                Slog.w(TAG, "Removing dangling permission: " + bp.name
6822                        + " from package " + bp.sourcePackage);
6823                it.remove();
6824            } else if (changingPkg != null && changingPkg.equals(bp.sourcePackage)) {
6825                if (pkgInfo == null || !hasPermission(pkgInfo, bp.name)) {
6826                    Slog.i(TAG, "Removing old permission: " + bp.name
6827                            + " from package " + bp.sourcePackage);
6828                    flags |= UPDATE_PERMISSIONS_ALL;
6829                    it.remove();
6830                }
6831            }
6832        }
6833
6834        // Now update the permissions for all packages, in particular
6835        // replace the granted permissions of the system packages.
6836        if ((flags&UPDATE_PERMISSIONS_ALL) != 0) {
6837            for (PackageParser.Package pkg : mPackages.values()) {
6838                if (pkg != pkgInfo) {
6839                    grantPermissionsLPw(pkg, (flags&UPDATE_PERMISSIONS_REPLACE_ALL) != 0,
6840                            changingPkg);
6841                }
6842            }
6843        }
6844
6845        if (pkgInfo != null) {
6846            grantPermissionsLPw(pkgInfo, (flags&UPDATE_PERMISSIONS_REPLACE_PKG) != 0, changingPkg);
6847        }
6848    }
6849
6850    private void grantPermissionsLPw(PackageParser.Package pkg, boolean replace,
6851            String packageOfInterest) {
6852        final PackageSetting ps = (PackageSetting) pkg.mExtras;
6853        if (ps == null) {
6854            return;
6855        }
6856        final GrantedPermissions gp = ps.sharedUser != null ? ps.sharedUser : ps;
6857        ArraySet<String> origPermissions = gp.grantedPermissions;
6858        boolean changedPermission = false;
6859
6860        if (replace) {
6861            ps.permissionsFixed = false;
6862            if (gp == ps) {
6863                origPermissions = new ArraySet<String>(gp.grantedPermissions);
6864                gp.grantedPermissions.clear();
6865                gp.gids = mGlobalGids;
6866            }
6867        }
6868
6869        if (gp.gids == null) {
6870            gp.gids = mGlobalGids;
6871        }
6872
6873        final int N = pkg.requestedPermissions.size();
6874        for (int i=0; i<N; i++) {
6875            final String name = pkg.requestedPermissions.get(i);
6876            final boolean required = pkg.requestedPermissionsRequired.get(i);
6877            final BasePermission bp = mSettings.mPermissions.get(name);
6878            if (DEBUG_INSTALL) {
6879                if (gp != ps) {
6880                    Log.i(TAG, "Package " + pkg.packageName + " checking " + name + ": " + bp);
6881                }
6882            }
6883
6884            if (bp == null || bp.packageSetting == null) {
6885                if (packageOfInterest == null || packageOfInterest.equals(pkg.packageName)) {
6886                    Slog.w(TAG, "Unknown permission " + name
6887                            + " in package " + pkg.packageName);
6888                }
6889                continue;
6890            }
6891
6892            final String perm = bp.name;
6893            boolean allowed;
6894            boolean allowedSig = false;
6895            if ((bp.protectionLevel&PermissionInfo.PROTECTION_FLAG_APPOP) != 0) {
6896                // Keep track of app op permissions.
6897                ArraySet<String> pkgs = mAppOpPermissionPackages.get(bp.name);
6898                if (pkgs == null) {
6899                    pkgs = new ArraySet<>();
6900                    mAppOpPermissionPackages.put(bp.name, pkgs);
6901                }
6902                pkgs.add(pkg.packageName);
6903            }
6904            final int level = bp.protectionLevel & PermissionInfo.PROTECTION_MASK_BASE;
6905            if (level == PermissionInfo.PROTECTION_NORMAL
6906                    || level == PermissionInfo.PROTECTION_DANGEROUS) {
6907                // We grant a normal or dangerous permission if any of the following
6908                // are true:
6909                // 1) The permission is required
6910                // 2) The permission is optional, but was granted in the past
6911                // 3) The permission is optional, but was requested by an
6912                //    app in /system (not /data)
6913                //
6914                // Otherwise, reject the permission.
6915                allowed = (required || origPermissions.contains(perm)
6916                        || (isSystemApp(ps) && !isUpdatedSystemApp(ps)));
6917            } else if (bp.packageSetting == null) {
6918                // This permission is invalid; skip it.
6919                allowed = false;
6920            } else if (level == PermissionInfo.PROTECTION_SIGNATURE) {
6921                allowed = grantSignaturePermission(perm, pkg, bp, origPermissions);
6922                if (allowed) {
6923                    allowedSig = true;
6924                }
6925            } else {
6926                allowed = false;
6927            }
6928            if (DEBUG_INSTALL) {
6929                if (gp != ps) {
6930                    Log.i(TAG, "Package " + pkg.packageName + " granting " + perm);
6931                }
6932            }
6933            if (allowed) {
6934                if (!isSystemApp(ps) && ps.permissionsFixed) {
6935                    // If this is an existing, non-system package, then
6936                    // we can't add any new permissions to it.
6937                    if (!allowedSig && !gp.grantedPermissions.contains(perm)) {
6938                        // Except...  if this is a permission that was added
6939                        // to the platform (note: need to only do this when
6940                        // updating the platform).
6941                        allowed = isNewPlatformPermissionForPackage(perm, pkg);
6942                    }
6943                }
6944                if (allowed) {
6945                    if (!gp.grantedPermissions.contains(perm)) {
6946                        changedPermission = true;
6947                        gp.grantedPermissions.add(perm);
6948                        gp.gids = appendInts(gp.gids, bp.gids);
6949                    } else if (!ps.haveGids) {
6950                        gp.gids = appendInts(gp.gids, bp.gids);
6951                    }
6952                } else {
6953                    if (packageOfInterest == null || packageOfInterest.equals(pkg.packageName)) {
6954                        Slog.w(TAG, "Not granting permission " + perm
6955                                + " to package " + pkg.packageName
6956                                + " because it was previously installed without");
6957                    }
6958                }
6959            } else {
6960                if (gp.grantedPermissions.remove(perm)) {
6961                    changedPermission = true;
6962                    gp.gids = removeInts(gp.gids, bp.gids);
6963                    Slog.i(TAG, "Un-granting permission " + perm
6964                            + " from package " + pkg.packageName
6965                            + " (protectionLevel=" + bp.protectionLevel
6966                            + " flags=0x" + Integer.toHexString(pkg.applicationInfo.flags)
6967                            + ")");
6968                } else if ((bp.protectionLevel&PermissionInfo.PROTECTION_FLAG_APPOP) == 0) {
6969                    // Don't print warning for app op permissions, since it is fine for them
6970                    // not to be granted, there is a UI for the user to decide.
6971                    if (packageOfInterest == null || packageOfInterest.equals(pkg.packageName)) {
6972                        Slog.w(TAG, "Not granting permission " + perm
6973                                + " to package " + pkg.packageName
6974                                + " (protectionLevel=" + bp.protectionLevel
6975                                + " flags=0x" + Integer.toHexString(pkg.applicationInfo.flags)
6976                                + ")");
6977                    }
6978                }
6979            }
6980        }
6981
6982        if ((changedPermission || replace) && !ps.permissionsFixed &&
6983                !isSystemApp(ps) || isUpdatedSystemApp(ps)){
6984            // This is the first that we have heard about this package, so the
6985            // permissions we have now selected are fixed until explicitly
6986            // changed.
6987            ps.permissionsFixed = true;
6988        }
6989        ps.haveGids = true;
6990    }
6991
6992    private boolean isNewPlatformPermissionForPackage(String perm, PackageParser.Package pkg) {
6993        boolean allowed = false;
6994        final int NP = PackageParser.NEW_PERMISSIONS.length;
6995        for (int ip=0; ip<NP; ip++) {
6996            final PackageParser.NewPermissionInfo npi
6997                    = PackageParser.NEW_PERMISSIONS[ip];
6998            if (npi.name.equals(perm)
6999                    && pkg.applicationInfo.targetSdkVersion < npi.sdkVersion) {
7000                allowed = true;
7001                Log.i(TAG, "Auto-granting " + perm + " to old pkg "
7002                        + pkg.packageName);
7003                break;
7004            }
7005        }
7006        return allowed;
7007    }
7008
7009    private boolean grantSignaturePermission(String perm, PackageParser.Package pkg,
7010                                          BasePermission bp, ArraySet<String> origPermissions) {
7011        boolean allowed;
7012        allowed = (compareSignatures(
7013                bp.packageSetting.signatures.mSignatures, pkg.mSignatures)
7014                        == PackageManager.SIGNATURE_MATCH)
7015                || (compareSignatures(mPlatformPackage.mSignatures, pkg.mSignatures)
7016                        == PackageManager.SIGNATURE_MATCH);
7017        if (!allowed && (bp.protectionLevel
7018                & PermissionInfo.PROTECTION_FLAG_SYSTEM) != 0) {
7019            if (isSystemApp(pkg)) {
7020                // For updated system applications, a system permission
7021                // is granted only if it had been defined by the original application.
7022                if (pkg.isUpdatedSystemApp()) {
7023                    final PackageSetting sysPs = mSettings
7024                            .getDisabledSystemPkgLPr(pkg.packageName);
7025                    final GrantedPermissions origGp = sysPs.sharedUser != null
7026                            ? sysPs.sharedUser : sysPs;
7027
7028                    if (origGp.grantedPermissions.contains(perm)) {
7029                        // If the original was granted this permission, we take
7030                        // that grant decision as read and propagate it to the
7031                        // update.
7032                        if (sysPs.isPrivileged()) {
7033                            allowed = true;
7034                        }
7035                    } else {
7036                        // The system apk may have been updated with an older
7037                        // version of the one on the data partition, but which
7038                        // granted a new system permission that it didn't have
7039                        // before.  In this case we do want to allow the app to
7040                        // now get the new permission if the ancestral apk is
7041                        // privileged to get it.
7042                        if (sysPs.pkg != null && sysPs.isPrivileged()) {
7043                            for (int j=0;
7044                                    j<sysPs.pkg.requestedPermissions.size(); j++) {
7045                                if (perm.equals(
7046                                        sysPs.pkg.requestedPermissions.get(j))) {
7047                                    allowed = true;
7048                                    break;
7049                                }
7050                            }
7051                        }
7052                    }
7053                } else {
7054                    allowed = isPrivilegedApp(pkg);
7055                }
7056            }
7057        }
7058        if (!allowed && (bp.protectionLevel
7059                & PermissionInfo.PROTECTION_FLAG_DEVELOPMENT) != 0) {
7060            // For development permissions, a development permission
7061            // is granted only if it was already granted.
7062            allowed = origPermissions.contains(perm);
7063        }
7064        return allowed;
7065    }
7066
7067    final class ActivityIntentResolver
7068            extends IntentResolver<PackageParser.ActivityIntentInfo, ResolveInfo> {
7069        public List<ResolveInfo> queryIntent(Intent intent, String resolvedType,
7070                boolean defaultOnly, int userId) {
7071            if (!sUserManager.exists(userId)) return null;
7072            mFlags = defaultOnly ? PackageManager.MATCH_DEFAULT_ONLY : 0;
7073            return super.queryIntent(intent, resolvedType, defaultOnly, userId);
7074        }
7075
7076        public List<ResolveInfo> queryIntent(Intent intent, String resolvedType, int flags,
7077                int userId) {
7078            if (!sUserManager.exists(userId)) return null;
7079            mFlags = flags;
7080            return super.queryIntent(intent, resolvedType,
7081                    (flags & PackageManager.MATCH_DEFAULT_ONLY) != 0, userId);
7082        }
7083
7084        public List<ResolveInfo> queryIntentForPackage(Intent intent, String resolvedType,
7085                int flags, ArrayList<PackageParser.Activity> packageActivities, int userId) {
7086            if (!sUserManager.exists(userId)) return null;
7087            if (packageActivities == null) {
7088                return null;
7089            }
7090            mFlags = flags;
7091            final boolean defaultOnly = (flags&PackageManager.MATCH_DEFAULT_ONLY) != 0;
7092            final int N = packageActivities.size();
7093            ArrayList<PackageParser.ActivityIntentInfo[]> listCut =
7094                new ArrayList<PackageParser.ActivityIntentInfo[]>(N);
7095
7096            ArrayList<PackageParser.ActivityIntentInfo> intentFilters;
7097            for (int i = 0; i < N; ++i) {
7098                intentFilters = packageActivities.get(i).intents;
7099                if (intentFilters != null && intentFilters.size() > 0) {
7100                    PackageParser.ActivityIntentInfo[] array =
7101                            new PackageParser.ActivityIntentInfo[intentFilters.size()];
7102                    intentFilters.toArray(array);
7103                    listCut.add(array);
7104                }
7105            }
7106            return super.queryIntentFromList(intent, resolvedType, defaultOnly, listCut, userId);
7107        }
7108
7109        public final void addActivity(PackageParser.Activity a, String type) {
7110            final boolean systemApp = a.info.applicationInfo.isSystemApp();
7111            mActivities.put(a.getComponentName(), a);
7112            if (DEBUG_SHOW_INFO)
7113                Log.v(
7114                TAG, "  " + type + " " +
7115                (a.info.nonLocalizedLabel != null ? a.info.nonLocalizedLabel : a.info.name) + ":");
7116            if (DEBUG_SHOW_INFO)
7117                Log.v(TAG, "    Class=" + a.info.name);
7118            final int NI = a.intents.size();
7119            for (int j=0; j<NI; j++) {
7120                PackageParser.ActivityIntentInfo intent = a.intents.get(j);
7121                if (!systemApp && intent.getPriority() > 0 && "activity".equals(type)) {
7122                    intent.setPriority(0);
7123                    Log.w(TAG, "Package " + a.info.applicationInfo.packageName + " has activity "
7124                            + a.className + " with priority > 0, forcing to 0");
7125                }
7126                if (DEBUG_SHOW_INFO) {
7127                    Log.v(TAG, "    IntentFilter:");
7128                    intent.dump(new LogPrinter(Log.VERBOSE, TAG), "      ");
7129                }
7130                if (!intent.debugCheck()) {
7131                    Log.w(TAG, "==> For Activity " + a.info.name);
7132                }
7133                addFilter(intent);
7134            }
7135        }
7136
7137        public final void removeActivity(PackageParser.Activity a, String type) {
7138            mActivities.remove(a.getComponentName());
7139            if (DEBUG_SHOW_INFO) {
7140                Log.v(TAG, "  " + type + " "
7141                        + (a.info.nonLocalizedLabel != null ? a.info.nonLocalizedLabel
7142                                : a.info.name) + ":");
7143                Log.v(TAG, "    Class=" + a.info.name);
7144            }
7145            final int NI = a.intents.size();
7146            for (int j=0; j<NI; j++) {
7147                PackageParser.ActivityIntentInfo intent = a.intents.get(j);
7148                if (DEBUG_SHOW_INFO) {
7149                    Log.v(TAG, "    IntentFilter:");
7150                    intent.dump(new LogPrinter(Log.VERBOSE, TAG), "      ");
7151                }
7152                removeFilter(intent);
7153            }
7154        }
7155
7156        @Override
7157        protected boolean allowFilterResult(
7158                PackageParser.ActivityIntentInfo filter, List<ResolveInfo> dest) {
7159            ActivityInfo filterAi = filter.activity.info;
7160            for (int i=dest.size()-1; i>=0; i--) {
7161                ActivityInfo destAi = dest.get(i).activityInfo;
7162                if (destAi.name == filterAi.name
7163                        && destAi.packageName == filterAi.packageName) {
7164                    return false;
7165                }
7166            }
7167            return true;
7168        }
7169
7170        @Override
7171        protected ActivityIntentInfo[] newArray(int size) {
7172            return new ActivityIntentInfo[size];
7173        }
7174
7175        @Override
7176        protected boolean isFilterStopped(PackageParser.ActivityIntentInfo filter, int userId) {
7177            if (!sUserManager.exists(userId)) return true;
7178            PackageParser.Package p = filter.activity.owner;
7179            if (p != null) {
7180                PackageSetting ps = (PackageSetting)p.mExtras;
7181                if (ps != null) {
7182                    // System apps are never considered stopped for purposes of
7183                    // filtering, because there may be no way for the user to
7184                    // actually re-launch them.
7185                    return (ps.pkgFlags&ApplicationInfo.FLAG_SYSTEM) == 0
7186                            && ps.getStopped(userId);
7187                }
7188            }
7189            return false;
7190        }
7191
7192        @Override
7193        protected boolean isPackageForFilter(String packageName,
7194                PackageParser.ActivityIntentInfo info) {
7195            return packageName.equals(info.activity.owner.packageName);
7196        }
7197
7198        @Override
7199        protected ResolveInfo newResult(PackageParser.ActivityIntentInfo info,
7200                int match, int userId) {
7201            if (!sUserManager.exists(userId)) return null;
7202            if (!mSettings.isEnabledLPr(info.activity.info, mFlags, userId)) {
7203                return null;
7204            }
7205            final PackageParser.Activity activity = info.activity;
7206            if (mSafeMode && (activity.info.applicationInfo.flags
7207                    &ApplicationInfo.FLAG_SYSTEM) == 0) {
7208                return null;
7209            }
7210            PackageSetting ps = (PackageSetting) activity.owner.mExtras;
7211            if (ps == null) {
7212                return null;
7213            }
7214            ActivityInfo ai = PackageParser.generateActivityInfo(activity, mFlags,
7215                    ps.readUserState(userId), userId);
7216            if (ai == null) {
7217                return null;
7218            }
7219            final ResolveInfo res = new ResolveInfo();
7220            res.activityInfo = ai;
7221            if ((mFlags&PackageManager.GET_RESOLVED_FILTER) != 0) {
7222                res.filter = info;
7223            }
7224            res.priority = info.getPriority();
7225            res.preferredOrder = activity.owner.mPreferredOrder;
7226            //System.out.println("Result: " + res.activityInfo.className +
7227            //                   " = " + res.priority);
7228            res.match = match;
7229            res.isDefault = info.hasDefault;
7230            res.labelRes = info.labelRes;
7231            res.nonLocalizedLabel = info.nonLocalizedLabel;
7232            if (userNeedsBadging(userId)) {
7233                res.noResourceId = true;
7234            } else {
7235                res.icon = info.icon;
7236            }
7237            res.system = res.activityInfo.applicationInfo.isSystemApp();
7238            return res;
7239        }
7240
7241        @Override
7242        protected void sortResults(List<ResolveInfo> results) {
7243            Collections.sort(results, mResolvePrioritySorter);
7244        }
7245
7246        @Override
7247        protected void dumpFilter(PrintWriter out, String prefix,
7248                PackageParser.ActivityIntentInfo filter) {
7249            out.print(prefix); out.print(
7250                    Integer.toHexString(System.identityHashCode(filter.activity)));
7251                    out.print(' ');
7252                    filter.activity.printComponentShortName(out);
7253                    out.print(" filter ");
7254                    out.println(Integer.toHexString(System.identityHashCode(filter)));
7255        }
7256
7257        @Override
7258        protected Object filterToLabel(PackageParser.ActivityIntentInfo filter) {
7259            return filter.activity;
7260        }
7261
7262        protected void dumpFilterLabel(PrintWriter out, String prefix, Object label, int count) {
7263            PackageParser.Activity activity = (PackageParser.Activity)label;
7264            out.print(prefix); out.print(
7265                    Integer.toHexString(System.identityHashCode(activity)));
7266                    out.print(' ');
7267                    activity.printComponentShortName(out);
7268            if (count > 1) {
7269                out.print(" ("); out.print(count); out.print(" filters)");
7270            }
7271            out.println();
7272        }
7273
7274//        List<ResolveInfo> filterEnabled(List<ResolveInfo> resolveInfoList) {
7275//            final Iterator<ResolveInfo> i = resolveInfoList.iterator();
7276//            final List<ResolveInfo> retList = Lists.newArrayList();
7277//            while (i.hasNext()) {
7278//                final ResolveInfo resolveInfo = i.next();
7279//                if (isEnabledLP(resolveInfo.activityInfo)) {
7280//                    retList.add(resolveInfo);
7281//                }
7282//            }
7283//            return retList;
7284//        }
7285
7286        // Keys are String (activity class name), values are Activity.
7287        private final ArrayMap<ComponentName, PackageParser.Activity> mActivities
7288                = new ArrayMap<ComponentName, PackageParser.Activity>();
7289        private int mFlags;
7290    }
7291
7292    private final class ServiceIntentResolver
7293            extends IntentResolver<PackageParser.ServiceIntentInfo, ResolveInfo> {
7294        public List<ResolveInfo> queryIntent(Intent intent, String resolvedType,
7295                boolean defaultOnly, int userId) {
7296            mFlags = defaultOnly ? PackageManager.MATCH_DEFAULT_ONLY : 0;
7297            return super.queryIntent(intent, resolvedType, defaultOnly, userId);
7298        }
7299
7300        public List<ResolveInfo> queryIntent(Intent intent, String resolvedType, int flags,
7301                int userId) {
7302            if (!sUserManager.exists(userId)) return null;
7303            mFlags = flags;
7304            return super.queryIntent(intent, resolvedType,
7305                    (flags & PackageManager.MATCH_DEFAULT_ONLY) != 0, userId);
7306        }
7307
7308        public List<ResolveInfo> queryIntentForPackage(Intent intent, String resolvedType,
7309                int flags, ArrayList<PackageParser.Service> packageServices, int userId) {
7310            if (!sUserManager.exists(userId)) return null;
7311            if (packageServices == null) {
7312                return null;
7313            }
7314            mFlags = flags;
7315            final boolean defaultOnly = (flags&PackageManager.MATCH_DEFAULT_ONLY) != 0;
7316            final int N = packageServices.size();
7317            ArrayList<PackageParser.ServiceIntentInfo[]> listCut =
7318                new ArrayList<PackageParser.ServiceIntentInfo[]>(N);
7319
7320            ArrayList<PackageParser.ServiceIntentInfo> intentFilters;
7321            for (int i = 0; i < N; ++i) {
7322                intentFilters = packageServices.get(i).intents;
7323                if (intentFilters != null && intentFilters.size() > 0) {
7324                    PackageParser.ServiceIntentInfo[] array =
7325                            new PackageParser.ServiceIntentInfo[intentFilters.size()];
7326                    intentFilters.toArray(array);
7327                    listCut.add(array);
7328                }
7329            }
7330            return super.queryIntentFromList(intent, resolvedType, defaultOnly, listCut, userId);
7331        }
7332
7333        public final void addService(PackageParser.Service s) {
7334            mServices.put(s.getComponentName(), s);
7335            if (DEBUG_SHOW_INFO) {
7336                Log.v(TAG, "  "
7337                        + (s.info.nonLocalizedLabel != null
7338                        ? s.info.nonLocalizedLabel : s.info.name) + ":");
7339                Log.v(TAG, "    Class=" + s.info.name);
7340            }
7341            final int NI = s.intents.size();
7342            int j;
7343            for (j=0; j<NI; j++) {
7344                PackageParser.ServiceIntentInfo intent = s.intents.get(j);
7345                if (DEBUG_SHOW_INFO) {
7346                    Log.v(TAG, "    IntentFilter:");
7347                    intent.dump(new LogPrinter(Log.VERBOSE, TAG), "      ");
7348                }
7349                if (!intent.debugCheck()) {
7350                    Log.w(TAG, "==> For Service " + s.info.name);
7351                }
7352                addFilter(intent);
7353            }
7354        }
7355
7356        public final void removeService(PackageParser.Service s) {
7357            mServices.remove(s.getComponentName());
7358            if (DEBUG_SHOW_INFO) {
7359                Log.v(TAG, "  " + (s.info.nonLocalizedLabel != null
7360                        ? s.info.nonLocalizedLabel : s.info.name) + ":");
7361                Log.v(TAG, "    Class=" + s.info.name);
7362            }
7363            final int NI = s.intents.size();
7364            int j;
7365            for (j=0; j<NI; j++) {
7366                PackageParser.ServiceIntentInfo intent = s.intents.get(j);
7367                if (DEBUG_SHOW_INFO) {
7368                    Log.v(TAG, "    IntentFilter:");
7369                    intent.dump(new LogPrinter(Log.VERBOSE, TAG), "      ");
7370                }
7371                removeFilter(intent);
7372            }
7373        }
7374
7375        @Override
7376        protected boolean allowFilterResult(
7377                PackageParser.ServiceIntentInfo filter, List<ResolveInfo> dest) {
7378            ServiceInfo filterSi = filter.service.info;
7379            for (int i=dest.size()-1; i>=0; i--) {
7380                ServiceInfo destAi = dest.get(i).serviceInfo;
7381                if (destAi.name == filterSi.name
7382                        && destAi.packageName == filterSi.packageName) {
7383                    return false;
7384                }
7385            }
7386            return true;
7387        }
7388
7389        @Override
7390        protected PackageParser.ServiceIntentInfo[] newArray(int size) {
7391            return new PackageParser.ServiceIntentInfo[size];
7392        }
7393
7394        @Override
7395        protected boolean isFilterStopped(PackageParser.ServiceIntentInfo filter, int userId) {
7396            if (!sUserManager.exists(userId)) return true;
7397            PackageParser.Package p = filter.service.owner;
7398            if (p != null) {
7399                PackageSetting ps = (PackageSetting)p.mExtras;
7400                if (ps != null) {
7401                    // System apps are never considered stopped for purposes of
7402                    // filtering, because there may be no way for the user to
7403                    // actually re-launch them.
7404                    return (ps.pkgFlags & ApplicationInfo.FLAG_SYSTEM) == 0
7405                            && ps.getStopped(userId);
7406                }
7407            }
7408            return false;
7409        }
7410
7411        @Override
7412        protected boolean isPackageForFilter(String packageName,
7413                PackageParser.ServiceIntentInfo info) {
7414            return packageName.equals(info.service.owner.packageName);
7415        }
7416
7417        @Override
7418        protected ResolveInfo newResult(PackageParser.ServiceIntentInfo filter,
7419                int match, int userId) {
7420            if (!sUserManager.exists(userId)) return null;
7421            final PackageParser.ServiceIntentInfo info = (PackageParser.ServiceIntentInfo)filter;
7422            if (!mSettings.isEnabledLPr(info.service.info, mFlags, userId)) {
7423                return null;
7424            }
7425            final PackageParser.Service service = info.service;
7426            if (mSafeMode && (service.info.applicationInfo.flags
7427                    &ApplicationInfo.FLAG_SYSTEM) == 0) {
7428                return null;
7429            }
7430            PackageSetting ps = (PackageSetting) service.owner.mExtras;
7431            if (ps == null) {
7432                return null;
7433            }
7434            ServiceInfo si = PackageParser.generateServiceInfo(service, mFlags,
7435                    ps.readUserState(userId), userId);
7436            if (si == null) {
7437                return null;
7438            }
7439            final ResolveInfo res = new ResolveInfo();
7440            res.serviceInfo = si;
7441            if ((mFlags&PackageManager.GET_RESOLVED_FILTER) != 0) {
7442                res.filter = filter;
7443            }
7444            res.priority = info.getPriority();
7445            res.preferredOrder = service.owner.mPreferredOrder;
7446            //System.out.println("Result: " + res.activityInfo.className +
7447            //                   " = " + res.priority);
7448            res.match = match;
7449            res.isDefault = info.hasDefault;
7450            res.labelRes = info.labelRes;
7451            res.nonLocalizedLabel = info.nonLocalizedLabel;
7452            res.icon = info.icon;
7453            res.system = res.serviceInfo.applicationInfo.isSystemApp();
7454            return res;
7455        }
7456
7457        @Override
7458        protected void sortResults(List<ResolveInfo> results) {
7459            Collections.sort(results, mResolvePrioritySorter);
7460        }
7461
7462        @Override
7463        protected void dumpFilter(PrintWriter out, String prefix,
7464                PackageParser.ServiceIntentInfo filter) {
7465            out.print(prefix); out.print(
7466                    Integer.toHexString(System.identityHashCode(filter.service)));
7467                    out.print(' ');
7468                    filter.service.printComponentShortName(out);
7469                    out.print(" filter ");
7470                    out.println(Integer.toHexString(System.identityHashCode(filter)));
7471        }
7472
7473        @Override
7474        protected Object filterToLabel(PackageParser.ServiceIntentInfo filter) {
7475            return filter.service;
7476        }
7477
7478        protected void dumpFilterLabel(PrintWriter out, String prefix, Object label, int count) {
7479            PackageParser.Service service = (PackageParser.Service)label;
7480            out.print(prefix); out.print(
7481                    Integer.toHexString(System.identityHashCode(service)));
7482                    out.print(' ');
7483                    service.printComponentShortName(out);
7484            if (count > 1) {
7485                out.print(" ("); out.print(count); out.print(" filters)");
7486            }
7487            out.println();
7488        }
7489
7490//        List<ResolveInfo> filterEnabled(List<ResolveInfo> resolveInfoList) {
7491//            final Iterator<ResolveInfo> i = resolveInfoList.iterator();
7492//            final List<ResolveInfo> retList = Lists.newArrayList();
7493//            while (i.hasNext()) {
7494//                final ResolveInfo resolveInfo = (ResolveInfo) i;
7495//                if (isEnabledLP(resolveInfo.serviceInfo)) {
7496//                    retList.add(resolveInfo);
7497//                }
7498//            }
7499//            return retList;
7500//        }
7501
7502        // Keys are String (activity class name), values are Activity.
7503        private final ArrayMap<ComponentName, PackageParser.Service> mServices
7504                = new ArrayMap<ComponentName, PackageParser.Service>();
7505        private int mFlags;
7506    };
7507
7508    private final class ProviderIntentResolver
7509            extends IntentResolver<PackageParser.ProviderIntentInfo, ResolveInfo> {
7510        public List<ResolveInfo> queryIntent(Intent intent, String resolvedType,
7511                boolean defaultOnly, int userId) {
7512            mFlags = defaultOnly ? PackageManager.MATCH_DEFAULT_ONLY : 0;
7513            return super.queryIntent(intent, resolvedType, defaultOnly, userId);
7514        }
7515
7516        public List<ResolveInfo> queryIntent(Intent intent, String resolvedType, int flags,
7517                int userId) {
7518            if (!sUserManager.exists(userId))
7519                return null;
7520            mFlags = flags;
7521            return super.queryIntent(intent, resolvedType,
7522                    (flags & PackageManager.MATCH_DEFAULT_ONLY) != 0, userId);
7523        }
7524
7525        public List<ResolveInfo> queryIntentForPackage(Intent intent, String resolvedType,
7526                int flags, ArrayList<PackageParser.Provider> packageProviders, int userId) {
7527            if (!sUserManager.exists(userId))
7528                return null;
7529            if (packageProviders == null) {
7530                return null;
7531            }
7532            mFlags = flags;
7533            final boolean defaultOnly = (flags & PackageManager.MATCH_DEFAULT_ONLY) != 0;
7534            final int N = packageProviders.size();
7535            ArrayList<PackageParser.ProviderIntentInfo[]> listCut =
7536                    new ArrayList<PackageParser.ProviderIntentInfo[]>(N);
7537
7538            ArrayList<PackageParser.ProviderIntentInfo> intentFilters;
7539            for (int i = 0; i < N; ++i) {
7540                intentFilters = packageProviders.get(i).intents;
7541                if (intentFilters != null && intentFilters.size() > 0) {
7542                    PackageParser.ProviderIntentInfo[] array =
7543                            new PackageParser.ProviderIntentInfo[intentFilters.size()];
7544                    intentFilters.toArray(array);
7545                    listCut.add(array);
7546                }
7547            }
7548            return super.queryIntentFromList(intent, resolvedType, defaultOnly, listCut, userId);
7549        }
7550
7551        public final void addProvider(PackageParser.Provider p) {
7552            if (mProviders.containsKey(p.getComponentName())) {
7553                Slog.w(TAG, "Provider " + p.getComponentName() + " already defined; ignoring");
7554                return;
7555            }
7556
7557            mProviders.put(p.getComponentName(), p);
7558            if (DEBUG_SHOW_INFO) {
7559                Log.v(TAG, "  "
7560                        + (p.info.nonLocalizedLabel != null
7561                                ? p.info.nonLocalizedLabel : p.info.name) + ":");
7562                Log.v(TAG, "    Class=" + p.info.name);
7563            }
7564            final int NI = p.intents.size();
7565            int j;
7566            for (j = 0; j < NI; j++) {
7567                PackageParser.ProviderIntentInfo intent = p.intents.get(j);
7568                if (DEBUG_SHOW_INFO) {
7569                    Log.v(TAG, "    IntentFilter:");
7570                    intent.dump(new LogPrinter(Log.VERBOSE, TAG), "      ");
7571                }
7572                if (!intent.debugCheck()) {
7573                    Log.w(TAG, "==> For Provider " + p.info.name);
7574                }
7575                addFilter(intent);
7576            }
7577        }
7578
7579        public final void removeProvider(PackageParser.Provider p) {
7580            mProviders.remove(p.getComponentName());
7581            if (DEBUG_SHOW_INFO) {
7582                Log.v(TAG, "  " + (p.info.nonLocalizedLabel != null
7583                        ? p.info.nonLocalizedLabel : p.info.name) + ":");
7584                Log.v(TAG, "    Class=" + p.info.name);
7585            }
7586            final int NI = p.intents.size();
7587            int j;
7588            for (j = 0; j < NI; j++) {
7589                PackageParser.ProviderIntentInfo intent = p.intents.get(j);
7590                if (DEBUG_SHOW_INFO) {
7591                    Log.v(TAG, "    IntentFilter:");
7592                    intent.dump(new LogPrinter(Log.VERBOSE, TAG), "      ");
7593                }
7594                removeFilter(intent);
7595            }
7596        }
7597
7598        @Override
7599        protected boolean allowFilterResult(
7600                PackageParser.ProviderIntentInfo filter, List<ResolveInfo> dest) {
7601            ProviderInfo filterPi = filter.provider.info;
7602            for (int i = dest.size() - 1; i >= 0; i--) {
7603                ProviderInfo destPi = dest.get(i).providerInfo;
7604                if (destPi.name == filterPi.name
7605                        && destPi.packageName == filterPi.packageName) {
7606                    return false;
7607                }
7608            }
7609            return true;
7610        }
7611
7612        @Override
7613        protected PackageParser.ProviderIntentInfo[] newArray(int size) {
7614            return new PackageParser.ProviderIntentInfo[size];
7615        }
7616
7617        @Override
7618        protected boolean isFilterStopped(PackageParser.ProviderIntentInfo filter, int userId) {
7619            if (!sUserManager.exists(userId))
7620                return true;
7621            PackageParser.Package p = filter.provider.owner;
7622            if (p != null) {
7623                PackageSetting ps = (PackageSetting) p.mExtras;
7624                if (ps != null) {
7625                    // System apps are never considered stopped for purposes of
7626                    // filtering, because there may be no way for the user to
7627                    // actually re-launch them.
7628                    return (ps.pkgFlags & ApplicationInfo.FLAG_SYSTEM) == 0
7629                            && ps.getStopped(userId);
7630                }
7631            }
7632            return false;
7633        }
7634
7635        @Override
7636        protected boolean isPackageForFilter(String packageName,
7637                PackageParser.ProviderIntentInfo info) {
7638            return packageName.equals(info.provider.owner.packageName);
7639        }
7640
7641        @Override
7642        protected ResolveInfo newResult(PackageParser.ProviderIntentInfo filter,
7643                int match, int userId) {
7644            if (!sUserManager.exists(userId))
7645                return null;
7646            final PackageParser.ProviderIntentInfo info = filter;
7647            if (!mSettings.isEnabledLPr(info.provider.info, mFlags, userId)) {
7648                return null;
7649            }
7650            final PackageParser.Provider provider = info.provider;
7651            if (mSafeMode && (provider.info.applicationInfo.flags
7652                    & ApplicationInfo.FLAG_SYSTEM) == 0) {
7653                return null;
7654            }
7655            PackageSetting ps = (PackageSetting) provider.owner.mExtras;
7656            if (ps == null) {
7657                return null;
7658            }
7659            ProviderInfo pi = PackageParser.generateProviderInfo(provider, mFlags,
7660                    ps.readUserState(userId), userId);
7661            if (pi == null) {
7662                return null;
7663            }
7664            final ResolveInfo res = new ResolveInfo();
7665            res.providerInfo = pi;
7666            if ((mFlags & PackageManager.GET_RESOLVED_FILTER) != 0) {
7667                res.filter = filter;
7668            }
7669            res.priority = info.getPriority();
7670            res.preferredOrder = provider.owner.mPreferredOrder;
7671            res.match = match;
7672            res.isDefault = info.hasDefault;
7673            res.labelRes = info.labelRes;
7674            res.nonLocalizedLabel = info.nonLocalizedLabel;
7675            res.icon = info.icon;
7676            res.system = res.providerInfo.applicationInfo.isSystemApp();
7677            return res;
7678        }
7679
7680        @Override
7681        protected void sortResults(List<ResolveInfo> results) {
7682            Collections.sort(results, mResolvePrioritySorter);
7683        }
7684
7685        @Override
7686        protected void dumpFilter(PrintWriter out, String prefix,
7687                PackageParser.ProviderIntentInfo filter) {
7688            out.print(prefix);
7689            out.print(
7690                    Integer.toHexString(System.identityHashCode(filter.provider)));
7691            out.print(' ');
7692            filter.provider.printComponentShortName(out);
7693            out.print(" filter ");
7694            out.println(Integer.toHexString(System.identityHashCode(filter)));
7695        }
7696
7697        @Override
7698        protected Object filterToLabel(PackageParser.ProviderIntentInfo filter) {
7699            return filter.provider;
7700        }
7701
7702        protected void dumpFilterLabel(PrintWriter out, String prefix, Object label, int count) {
7703            PackageParser.Provider provider = (PackageParser.Provider)label;
7704            out.print(prefix); out.print(
7705                    Integer.toHexString(System.identityHashCode(provider)));
7706                    out.print(' ');
7707                    provider.printComponentShortName(out);
7708            if (count > 1) {
7709                out.print(" ("); out.print(count); out.print(" filters)");
7710            }
7711            out.println();
7712        }
7713
7714        private final ArrayMap<ComponentName, PackageParser.Provider> mProviders
7715                = new ArrayMap<ComponentName, PackageParser.Provider>();
7716        private int mFlags;
7717    };
7718
7719    private static final Comparator<ResolveInfo> mResolvePrioritySorter =
7720            new Comparator<ResolveInfo>() {
7721        public int compare(ResolveInfo r1, ResolveInfo r2) {
7722            int v1 = r1.priority;
7723            int v2 = r2.priority;
7724            //System.out.println("Comparing: q1=" + q1 + " q2=" + q2);
7725            if (v1 != v2) {
7726                return (v1 > v2) ? -1 : 1;
7727            }
7728            v1 = r1.preferredOrder;
7729            v2 = r2.preferredOrder;
7730            if (v1 != v2) {
7731                return (v1 > v2) ? -1 : 1;
7732            }
7733            if (r1.isDefault != r2.isDefault) {
7734                return r1.isDefault ? -1 : 1;
7735            }
7736            v1 = r1.match;
7737            v2 = r2.match;
7738            //System.out.println("Comparing: m1=" + m1 + " m2=" + m2);
7739            if (v1 != v2) {
7740                return (v1 > v2) ? -1 : 1;
7741            }
7742            if (r1.system != r2.system) {
7743                return r1.system ? -1 : 1;
7744            }
7745            return 0;
7746        }
7747    };
7748
7749    private static final Comparator<ProviderInfo> mProviderInitOrderSorter =
7750            new Comparator<ProviderInfo>() {
7751        public int compare(ProviderInfo p1, ProviderInfo p2) {
7752            final int v1 = p1.initOrder;
7753            final int v2 = p2.initOrder;
7754            return (v1 > v2) ? -1 : ((v1 < v2) ? 1 : 0);
7755        }
7756    };
7757
7758    static final void sendPackageBroadcast(String action, String pkg,
7759            Bundle extras, String targetPkg, IIntentReceiver finishedReceiver,
7760            int[] userIds) {
7761        IActivityManager am = ActivityManagerNative.getDefault();
7762        if (am != null) {
7763            try {
7764                if (userIds == null) {
7765                    userIds = am.getRunningUserIds();
7766                }
7767                for (int id : userIds) {
7768                    final Intent intent = new Intent(action,
7769                            pkg != null ? Uri.fromParts("package", pkg, null) : null);
7770                    if (extras != null) {
7771                        intent.putExtras(extras);
7772                    }
7773                    if (targetPkg != null) {
7774                        intent.setPackage(targetPkg);
7775                    }
7776                    // Modify the UID when posting to other users
7777                    int uid = intent.getIntExtra(Intent.EXTRA_UID, -1);
7778                    if (uid > 0 && UserHandle.getUserId(uid) != id) {
7779                        uid = UserHandle.getUid(id, UserHandle.getAppId(uid));
7780                        intent.putExtra(Intent.EXTRA_UID, uid);
7781                    }
7782                    intent.putExtra(Intent.EXTRA_USER_HANDLE, id);
7783                    intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT);
7784                    if (DEBUG_BROADCASTS) {
7785                        RuntimeException here = new RuntimeException("here");
7786                        here.fillInStackTrace();
7787                        Slog.d(TAG, "Sending to user " + id + ": "
7788                                + intent.toShortString(false, true, false, false)
7789                                + " " + intent.getExtras(), here);
7790                    }
7791                    am.broadcastIntent(null, intent, null, finishedReceiver,
7792                            0, null, null, null, android.app.AppOpsManager.OP_NONE,
7793                            finishedReceiver != null, false, id);
7794                }
7795            } catch (RemoteException ex) {
7796            }
7797        }
7798    }
7799
7800    /**
7801     * Check if the external storage media is available. This is true if there
7802     * is a mounted external storage medium or if the external storage is
7803     * emulated.
7804     */
7805    private boolean isExternalMediaAvailable() {
7806        return mMediaMounted || Environment.isExternalStorageEmulated();
7807    }
7808
7809    @Override
7810    public PackageCleanItem nextPackageToClean(PackageCleanItem lastPackage) {
7811        // writer
7812        synchronized (mPackages) {
7813            if (!isExternalMediaAvailable()) {
7814                // If the external storage is no longer mounted at this point,
7815                // the caller may not have been able to delete all of this
7816                // packages files and can not delete any more.  Bail.
7817                return null;
7818            }
7819            final ArrayList<PackageCleanItem> pkgs = mSettings.mPackagesToBeCleaned;
7820            if (lastPackage != null) {
7821                pkgs.remove(lastPackage);
7822            }
7823            if (pkgs.size() > 0) {
7824                return pkgs.get(0);
7825            }
7826        }
7827        return null;
7828    }
7829
7830    void schedulePackageCleaning(String packageName, int userId, boolean andCode) {
7831        final Message msg = mHandler.obtainMessage(START_CLEANING_PACKAGE,
7832                userId, andCode ? 1 : 0, packageName);
7833        if (mSystemReady) {
7834            msg.sendToTarget();
7835        } else {
7836            if (mPostSystemReadyMessages == null) {
7837                mPostSystemReadyMessages = new ArrayList<>();
7838            }
7839            mPostSystemReadyMessages.add(msg);
7840        }
7841    }
7842
7843    void startCleaningPackages() {
7844        // reader
7845        synchronized (mPackages) {
7846            if (!isExternalMediaAvailable()) {
7847                return;
7848            }
7849            if (mSettings.mPackagesToBeCleaned.isEmpty()) {
7850                return;
7851            }
7852        }
7853        Intent intent = new Intent(PackageManager.ACTION_CLEAN_EXTERNAL_STORAGE);
7854        intent.setComponent(DEFAULT_CONTAINER_COMPONENT);
7855        IActivityManager am = ActivityManagerNative.getDefault();
7856        if (am != null) {
7857            try {
7858                am.startService(null, intent, null, UserHandle.USER_OWNER);
7859            } catch (RemoteException e) {
7860            }
7861        }
7862    }
7863
7864    @Override
7865    public void installPackage(String originPath, IPackageInstallObserver2 observer,
7866            int installFlags, String installerPackageName, VerificationParams verificationParams,
7867            String packageAbiOverride) {
7868        installPackageAsUser(originPath, observer, installFlags, installerPackageName, verificationParams,
7869                packageAbiOverride, UserHandle.getCallingUserId());
7870    }
7871
7872    @Override
7873    public void installPackageAsUser(String originPath, IPackageInstallObserver2 observer,
7874            int installFlags, String installerPackageName, VerificationParams verificationParams,
7875            String packageAbiOverride, int userId) {
7876        mContext.enforceCallingOrSelfPermission(android.Manifest.permission.INSTALL_PACKAGES, null);
7877
7878        final int callingUid = Binder.getCallingUid();
7879        enforceCrossUserPermission(callingUid, userId, true, true, "installPackageAsUser");
7880
7881        if (isUserRestricted(userId, UserManager.DISALLOW_INSTALL_APPS)) {
7882            try {
7883                if (observer != null) {
7884                    observer.onPackageInstalled("", INSTALL_FAILED_USER_RESTRICTED, null, null);
7885                }
7886            } catch (RemoteException re) {
7887            }
7888            return;
7889        }
7890
7891        if ((callingUid == Process.SHELL_UID) || (callingUid == Process.ROOT_UID)) {
7892            installFlags |= PackageManager.INSTALL_FROM_ADB;
7893
7894        } else {
7895            // Caller holds INSTALL_PACKAGES permission, so we're less strict
7896            // about installerPackageName.
7897
7898            installFlags &= ~PackageManager.INSTALL_FROM_ADB;
7899            installFlags &= ~PackageManager.INSTALL_ALL_USERS;
7900        }
7901
7902        UserHandle user;
7903        if ((installFlags & PackageManager.INSTALL_ALL_USERS) != 0) {
7904            user = UserHandle.ALL;
7905        } else {
7906            user = new UserHandle(userId);
7907        }
7908
7909        verificationParams.setInstallerUid(callingUid);
7910
7911        final File originFile = new File(originPath);
7912        final OriginInfo origin = OriginInfo.fromUntrustedFile(originFile);
7913
7914        final Message msg = mHandler.obtainMessage(INIT_COPY);
7915        msg.obj = new InstallParams(origin, observer, installFlags,
7916                installerPackageName, verificationParams, user, packageAbiOverride);
7917        mHandler.sendMessage(msg);
7918    }
7919
7920    void installStage(String packageName, File stagedDir, String stagedCid,
7921            IPackageInstallObserver2 observer, PackageInstaller.SessionParams params,
7922            String installerPackageName, int installerUid, UserHandle user) {
7923        final VerificationParams verifParams = new VerificationParams(null, params.originatingUri,
7924                params.referrerUri, installerUid, null);
7925
7926        final OriginInfo origin;
7927        if (stagedDir != null) {
7928            origin = OriginInfo.fromStagedFile(stagedDir);
7929        } else {
7930            origin = OriginInfo.fromStagedContainer(stagedCid);
7931        }
7932
7933        final Message msg = mHandler.obtainMessage(INIT_COPY);
7934        msg.obj = new InstallParams(origin, observer, params.installFlags,
7935                installerPackageName, verifParams, user, params.abiOverride);
7936        mHandler.sendMessage(msg);
7937    }
7938
7939    private void sendPackageAddedForUser(String packageName, PackageSetting pkgSetting, int userId) {
7940        Bundle extras = new Bundle(1);
7941        extras.putInt(Intent.EXTRA_UID, UserHandle.getUid(userId, pkgSetting.appId));
7942
7943        sendPackageBroadcast(Intent.ACTION_PACKAGE_ADDED,
7944                packageName, extras, null, null, new int[] {userId});
7945        try {
7946            IActivityManager am = ActivityManagerNative.getDefault();
7947            final boolean isSystem =
7948                    isSystemApp(pkgSetting) || isUpdatedSystemApp(pkgSetting);
7949            if (isSystem && am.isUserRunning(userId, false)) {
7950                // The just-installed/enabled app is bundled on the system, so presumed
7951                // to be able to run automatically without needing an explicit launch.
7952                // Send it a BOOT_COMPLETED if it would ordinarily have gotten one.
7953                Intent bcIntent = new Intent(Intent.ACTION_BOOT_COMPLETED)
7954                        .addFlags(Intent.FLAG_INCLUDE_STOPPED_PACKAGES)
7955                        .setPackage(packageName);
7956                am.broadcastIntent(null, bcIntent, null, null, 0, null, null, null,
7957                        android.app.AppOpsManager.OP_NONE, false, false, userId);
7958            }
7959        } catch (RemoteException e) {
7960            // shouldn't happen
7961            Slog.w(TAG, "Unable to bootstrap installed package", e);
7962        }
7963    }
7964
7965    @Override
7966    public boolean setApplicationHiddenSettingAsUser(String packageName, boolean hidden,
7967            int userId) {
7968        mContext.enforceCallingOrSelfPermission(android.Manifest.permission.MANAGE_USERS, null);
7969        PackageSetting pkgSetting;
7970        final int uid = Binder.getCallingUid();
7971        enforceCrossUserPermission(uid, userId, true, true,
7972                "setApplicationHiddenSetting for user " + userId);
7973
7974        if (hidden && isPackageDeviceAdmin(packageName, userId)) {
7975            Slog.w(TAG, "Not hiding package " + packageName + ": has active device admin");
7976            return false;
7977        }
7978
7979        long callingId = Binder.clearCallingIdentity();
7980        try {
7981            boolean sendAdded = false;
7982            boolean sendRemoved = false;
7983            // writer
7984            synchronized (mPackages) {
7985                pkgSetting = mSettings.mPackages.get(packageName);
7986                if (pkgSetting == null) {
7987                    return false;
7988                }
7989                if (pkgSetting.getHidden(userId) != hidden) {
7990                    pkgSetting.setHidden(hidden, userId);
7991                    mSettings.writePackageRestrictionsLPr(userId);
7992                    if (hidden) {
7993                        sendRemoved = true;
7994                    } else {
7995                        sendAdded = true;
7996                    }
7997                }
7998            }
7999            if (sendAdded) {
8000                sendPackageAddedForUser(packageName, pkgSetting, userId);
8001                return true;
8002            }
8003            if (sendRemoved) {
8004                killApplication(packageName, UserHandle.getUid(userId, pkgSetting.appId),
8005                        "hiding pkg");
8006                sendApplicationHiddenForUser(packageName, pkgSetting, userId);
8007            }
8008        } finally {
8009            Binder.restoreCallingIdentity(callingId);
8010        }
8011        return false;
8012    }
8013
8014    private void sendApplicationHiddenForUser(String packageName, PackageSetting pkgSetting,
8015            int userId) {
8016        final PackageRemovedInfo info = new PackageRemovedInfo();
8017        info.removedPackage = packageName;
8018        info.removedUsers = new int[] {userId};
8019        info.uid = UserHandle.getUid(userId, pkgSetting.appId);
8020        info.sendBroadcast(false, false, false);
8021    }
8022
8023    /**
8024     * Returns true if application is not found or there was an error. Otherwise it returns
8025     * the hidden state of the package for the given user.
8026     */
8027    @Override
8028    public boolean getApplicationHiddenSettingAsUser(String packageName, int userId) {
8029        mContext.enforceCallingOrSelfPermission(android.Manifest.permission.MANAGE_USERS, null);
8030        enforceCrossUserPermission(Binder.getCallingUid(), userId, true,
8031                false, "getApplicationHidden for user " + userId);
8032        PackageSetting pkgSetting;
8033        long callingId = Binder.clearCallingIdentity();
8034        try {
8035            // writer
8036            synchronized (mPackages) {
8037                pkgSetting = mSettings.mPackages.get(packageName);
8038                if (pkgSetting == null) {
8039                    return true;
8040                }
8041                return pkgSetting.getHidden(userId);
8042            }
8043        } finally {
8044            Binder.restoreCallingIdentity(callingId);
8045        }
8046    }
8047
8048    /**
8049     * @hide
8050     */
8051    @Override
8052    public int installExistingPackageAsUser(String packageName, int userId) {
8053        mContext.enforceCallingOrSelfPermission(android.Manifest.permission.INSTALL_PACKAGES,
8054                null);
8055        PackageSetting pkgSetting;
8056        final int uid = Binder.getCallingUid();
8057        enforceCrossUserPermission(uid, userId, true, true, "installExistingPackage for user "
8058                + userId);
8059        if (isUserRestricted(userId, UserManager.DISALLOW_INSTALL_APPS)) {
8060            return PackageManager.INSTALL_FAILED_USER_RESTRICTED;
8061        }
8062
8063        long callingId = Binder.clearCallingIdentity();
8064        try {
8065            boolean sendAdded = false;
8066            Bundle extras = new Bundle(1);
8067
8068            // writer
8069            synchronized (mPackages) {
8070                pkgSetting = mSettings.mPackages.get(packageName);
8071                if (pkgSetting == null) {
8072                    return PackageManager.INSTALL_FAILED_INVALID_URI;
8073                }
8074                if (!pkgSetting.getInstalled(userId)) {
8075                    pkgSetting.setInstalled(true, userId);
8076                    pkgSetting.setHidden(false, userId);
8077                    mSettings.writePackageRestrictionsLPr(userId);
8078                    sendAdded = true;
8079                }
8080            }
8081
8082            if (sendAdded) {
8083                sendPackageAddedForUser(packageName, pkgSetting, userId);
8084            }
8085        } finally {
8086            Binder.restoreCallingIdentity(callingId);
8087        }
8088
8089        return PackageManager.INSTALL_SUCCEEDED;
8090    }
8091
8092    boolean isUserRestricted(int userId, String restrictionKey) {
8093        Bundle restrictions = sUserManager.getUserRestrictions(userId);
8094        if (restrictions.getBoolean(restrictionKey, false)) {
8095            Log.w(TAG, "User is restricted: " + restrictionKey);
8096            return true;
8097        }
8098        return false;
8099    }
8100
8101    @Override
8102    public void verifyPendingInstall(int id, int verificationCode) throws RemoteException {
8103        mContext.enforceCallingOrSelfPermission(
8104                android.Manifest.permission.PACKAGE_VERIFICATION_AGENT,
8105                "Only package verification agents can verify applications");
8106
8107        final Message msg = mHandler.obtainMessage(PACKAGE_VERIFIED);
8108        final PackageVerificationResponse response = new PackageVerificationResponse(
8109                verificationCode, Binder.getCallingUid());
8110        msg.arg1 = id;
8111        msg.obj = response;
8112        mHandler.sendMessage(msg);
8113    }
8114
8115    @Override
8116    public void extendVerificationTimeout(int id, int verificationCodeAtTimeout,
8117            long millisecondsToDelay) {
8118        mContext.enforceCallingOrSelfPermission(
8119                android.Manifest.permission.PACKAGE_VERIFICATION_AGENT,
8120                "Only package verification agents can extend verification timeouts");
8121
8122        final PackageVerificationState state = mPendingVerification.get(id);
8123        final PackageVerificationResponse response = new PackageVerificationResponse(
8124                verificationCodeAtTimeout, Binder.getCallingUid());
8125
8126        if (millisecondsToDelay > PackageManager.MAXIMUM_VERIFICATION_TIMEOUT) {
8127            millisecondsToDelay = PackageManager.MAXIMUM_VERIFICATION_TIMEOUT;
8128        }
8129        if (millisecondsToDelay < 0) {
8130            millisecondsToDelay = 0;
8131        }
8132        if ((verificationCodeAtTimeout != PackageManager.VERIFICATION_ALLOW)
8133                && (verificationCodeAtTimeout != PackageManager.VERIFICATION_REJECT)) {
8134            verificationCodeAtTimeout = PackageManager.VERIFICATION_REJECT;
8135        }
8136
8137        if ((state != null) && !state.timeoutExtended()) {
8138            state.extendTimeout();
8139
8140            final Message msg = mHandler.obtainMessage(PACKAGE_VERIFIED);
8141            msg.arg1 = id;
8142            msg.obj = response;
8143            mHandler.sendMessageDelayed(msg, millisecondsToDelay);
8144        }
8145    }
8146
8147    private void broadcastPackageVerified(int verificationId, Uri packageUri,
8148            int verificationCode, UserHandle user) {
8149        final Intent intent = new Intent(Intent.ACTION_PACKAGE_VERIFIED);
8150        intent.setDataAndType(packageUri, PACKAGE_MIME_TYPE);
8151        intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
8152        intent.putExtra(PackageManager.EXTRA_VERIFICATION_ID, verificationId);
8153        intent.putExtra(PackageManager.EXTRA_VERIFICATION_RESULT, verificationCode);
8154
8155        mContext.sendBroadcastAsUser(intent, user,
8156                android.Manifest.permission.PACKAGE_VERIFICATION_AGENT);
8157    }
8158
8159    private ComponentName matchComponentForVerifier(String packageName,
8160            List<ResolveInfo> receivers) {
8161        ActivityInfo targetReceiver = null;
8162
8163        final int NR = receivers.size();
8164        for (int i = 0; i < NR; i++) {
8165            final ResolveInfo info = receivers.get(i);
8166            if (info.activityInfo == null) {
8167                continue;
8168            }
8169
8170            if (packageName.equals(info.activityInfo.packageName)) {
8171                targetReceiver = info.activityInfo;
8172                break;
8173            }
8174        }
8175
8176        if (targetReceiver == null) {
8177            return null;
8178        }
8179
8180        return new ComponentName(targetReceiver.packageName, targetReceiver.name);
8181    }
8182
8183    private List<ComponentName> matchVerifiers(PackageInfoLite pkgInfo,
8184            List<ResolveInfo> receivers, final PackageVerificationState verificationState) {
8185        if (pkgInfo.verifiers.length == 0) {
8186            return null;
8187        }
8188
8189        final int N = pkgInfo.verifiers.length;
8190        final List<ComponentName> sufficientVerifiers = new ArrayList<ComponentName>(N + 1);
8191        for (int i = 0; i < N; i++) {
8192            final VerifierInfo verifierInfo = pkgInfo.verifiers[i];
8193
8194            final ComponentName comp = matchComponentForVerifier(verifierInfo.packageName,
8195                    receivers);
8196            if (comp == null) {
8197                continue;
8198            }
8199
8200            final int verifierUid = getUidForVerifier(verifierInfo);
8201            if (verifierUid == -1) {
8202                continue;
8203            }
8204
8205            if (DEBUG_VERIFY) {
8206                Slog.d(TAG, "Added sufficient verifier " + verifierInfo.packageName
8207                        + " with the correct signature");
8208            }
8209            sufficientVerifiers.add(comp);
8210            verificationState.addSufficientVerifier(verifierUid);
8211        }
8212
8213        return sufficientVerifiers;
8214    }
8215
8216    private int getUidForVerifier(VerifierInfo verifierInfo) {
8217        synchronized (mPackages) {
8218            final PackageParser.Package pkg = mPackages.get(verifierInfo.packageName);
8219            if (pkg == null) {
8220                return -1;
8221            } else if (pkg.mSignatures.length != 1) {
8222                Slog.i(TAG, "Verifier package " + verifierInfo.packageName
8223                        + " has more than one signature; ignoring");
8224                return -1;
8225            }
8226
8227            /*
8228             * If the public key of the package's signature does not match
8229             * our expected public key, then this is a different package and
8230             * we should skip.
8231             */
8232
8233            final byte[] expectedPublicKey;
8234            try {
8235                final Signature verifierSig = pkg.mSignatures[0];
8236                final PublicKey publicKey = verifierSig.getPublicKey();
8237                expectedPublicKey = publicKey.getEncoded();
8238            } catch (CertificateException e) {
8239                return -1;
8240            }
8241
8242            final byte[] actualPublicKey = verifierInfo.publicKey.getEncoded();
8243
8244            if (!Arrays.equals(actualPublicKey, expectedPublicKey)) {
8245                Slog.i(TAG, "Verifier package " + verifierInfo.packageName
8246                        + " does not have the expected public key; ignoring");
8247                return -1;
8248            }
8249
8250            return pkg.applicationInfo.uid;
8251        }
8252    }
8253
8254    @Override
8255    public void finishPackageInstall(int token) {
8256        enforceSystemOrRoot("Only the system is allowed to finish installs");
8257
8258        if (DEBUG_INSTALL) {
8259            Slog.v(TAG, "BM finishing package install for " + token);
8260        }
8261
8262        final Message msg = mHandler.obtainMessage(POST_INSTALL, token, 0);
8263        mHandler.sendMessage(msg);
8264    }
8265
8266    /**
8267     * Get the verification agent timeout.
8268     *
8269     * @return verification timeout in milliseconds
8270     */
8271    private long getVerificationTimeout() {
8272        return android.provider.Settings.Global.getLong(mContext.getContentResolver(),
8273                android.provider.Settings.Global.PACKAGE_VERIFIER_TIMEOUT,
8274                DEFAULT_VERIFICATION_TIMEOUT);
8275    }
8276
8277    /**
8278     * Get the default verification agent response code.
8279     *
8280     * @return default verification response code
8281     */
8282    private int getDefaultVerificationResponse() {
8283        return android.provider.Settings.Global.getInt(mContext.getContentResolver(),
8284                android.provider.Settings.Global.PACKAGE_VERIFIER_DEFAULT_RESPONSE,
8285                DEFAULT_VERIFICATION_RESPONSE);
8286    }
8287
8288    /**
8289     * Check whether or not package verification has been enabled.
8290     *
8291     * @return true if verification should be performed
8292     */
8293    private boolean isVerificationEnabled(int userId, int installFlags) {
8294        if (!DEFAULT_VERIFY_ENABLE) {
8295            return false;
8296        }
8297
8298        boolean ensureVerifyAppsEnabled = isUserRestricted(userId, UserManager.ENSURE_VERIFY_APPS);
8299
8300        // Check if installing from ADB
8301        if ((installFlags & PackageManager.INSTALL_FROM_ADB) != 0) {
8302            // Do not run verification in a test harness environment
8303            if (ActivityManager.isRunningInTestHarness()) {
8304                return false;
8305            }
8306            if (ensureVerifyAppsEnabled) {
8307                return true;
8308            }
8309            // Check if the developer does not want package verification for ADB installs
8310            if (android.provider.Settings.Global.getInt(mContext.getContentResolver(),
8311                    android.provider.Settings.Global.PACKAGE_VERIFIER_INCLUDE_ADB, 1) == 0) {
8312                return false;
8313            }
8314        }
8315
8316        if (ensureVerifyAppsEnabled) {
8317            return true;
8318        }
8319
8320        return android.provider.Settings.Global.getInt(mContext.getContentResolver(),
8321                android.provider.Settings.Global.PACKAGE_VERIFIER_ENABLE, 1) == 1;
8322    }
8323
8324    /**
8325     * Get the "allow unknown sources" setting.
8326     *
8327     * @return the current "allow unknown sources" setting
8328     */
8329    private int getUnknownSourcesSettings() {
8330        return android.provider.Settings.Global.getInt(mContext.getContentResolver(),
8331                android.provider.Settings.Global.INSTALL_NON_MARKET_APPS,
8332                -1);
8333    }
8334
8335    @Override
8336    public void setInstallerPackageName(String targetPackage, String installerPackageName) {
8337        final int uid = Binder.getCallingUid();
8338        // writer
8339        synchronized (mPackages) {
8340            PackageSetting targetPackageSetting = mSettings.mPackages.get(targetPackage);
8341            if (targetPackageSetting == null) {
8342                throw new IllegalArgumentException("Unknown target package: " + targetPackage);
8343            }
8344
8345            PackageSetting installerPackageSetting;
8346            if (installerPackageName != null) {
8347                installerPackageSetting = mSettings.mPackages.get(installerPackageName);
8348                if (installerPackageSetting == null) {
8349                    throw new IllegalArgumentException("Unknown installer package: "
8350                            + installerPackageName);
8351                }
8352            } else {
8353                installerPackageSetting = null;
8354            }
8355
8356            Signature[] callerSignature;
8357            Object obj = mSettings.getUserIdLPr(uid);
8358            if (obj != null) {
8359                if (obj instanceof SharedUserSetting) {
8360                    callerSignature = ((SharedUserSetting)obj).signatures.mSignatures;
8361                } else if (obj instanceof PackageSetting) {
8362                    callerSignature = ((PackageSetting)obj).signatures.mSignatures;
8363                } else {
8364                    throw new SecurityException("Bad object " + obj + " for uid " + uid);
8365                }
8366            } else {
8367                throw new SecurityException("Unknown calling uid " + uid);
8368            }
8369
8370            // Verify: can't set installerPackageName to a package that is
8371            // not signed with the same cert as the caller.
8372            if (installerPackageSetting != null) {
8373                if (compareSignatures(callerSignature,
8374                        installerPackageSetting.signatures.mSignatures)
8375                        != PackageManager.SIGNATURE_MATCH) {
8376                    throw new SecurityException(
8377                            "Caller does not have same cert as new installer package "
8378                            + installerPackageName);
8379                }
8380            }
8381
8382            // Verify: if target already has an installer package, it must
8383            // be signed with the same cert as the caller.
8384            if (targetPackageSetting.installerPackageName != null) {
8385                PackageSetting setting = mSettings.mPackages.get(
8386                        targetPackageSetting.installerPackageName);
8387                // If the currently set package isn't valid, then it's always
8388                // okay to change it.
8389                if (setting != null) {
8390                    if (compareSignatures(callerSignature,
8391                            setting.signatures.mSignatures)
8392                            != PackageManager.SIGNATURE_MATCH) {
8393                        throw new SecurityException(
8394                                "Caller does not have same cert as old installer package "
8395                                + targetPackageSetting.installerPackageName);
8396                    }
8397                }
8398            }
8399
8400            // Okay!
8401            targetPackageSetting.installerPackageName = installerPackageName;
8402            scheduleWriteSettingsLocked();
8403        }
8404    }
8405
8406    private void processPendingInstall(final InstallArgs args, final int currentStatus) {
8407        // Queue up an async operation since the package installation may take a little while.
8408        mHandler.post(new Runnable() {
8409            public void run() {
8410                mHandler.removeCallbacks(this);
8411                 // Result object to be returned
8412                PackageInstalledInfo res = new PackageInstalledInfo();
8413                res.returnCode = currentStatus;
8414                res.uid = -1;
8415                res.pkg = null;
8416                res.removedInfo = new PackageRemovedInfo();
8417                if (res.returnCode == PackageManager.INSTALL_SUCCEEDED) {
8418                    args.doPreInstall(res.returnCode);
8419                    synchronized (mInstallLock) {
8420                        installPackageLI(args, res);
8421                    }
8422                    args.doPostInstall(res.returnCode, res.uid);
8423                }
8424
8425                // A restore should be performed at this point if (a) the install
8426                // succeeded, (b) the operation is not an update, and (c) the new
8427                // package has not opted out of backup participation.
8428                final boolean update = res.removedInfo.removedPackage != null;
8429                final int flags = (res.pkg == null) ? 0 : res.pkg.applicationInfo.flags;
8430                boolean doRestore = !update
8431                        && ((flags & ApplicationInfo.FLAG_ALLOW_BACKUP) != 0);
8432
8433                // Set up the post-install work request bookkeeping.  This will be used
8434                // and cleaned up by the post-install event handling regardless of whether
8435                // there's a restore pass performed.  Token values are >= 1.
8436                int token;
8437                if (mNextInstallToken < 0) mNextInstallToken = 1;
8438                token = mNextInstallToken++;
8439
8440                PostInstallData data = new PostInstallData(args, res);
8441                mRunningInstalls.put(token, data);
8442                if (DEBUG_INSTALL) Log.v(TAG, "+ starting restore round-trip " + token);
8443
8444                if (res.returnCode == PackageManager.INSTALL_SUCCEEDED && doRestore) {
8445                    // Pass responsibility to the Backup Manager.  It will perform a
8446                    // restore if appropriate, then pass responsibility back to the
8447                    // Package Manager to run the post-install observer callbacks
8448                    // and broadcasts.
8449                    IBackupManager bm = IBackupManager.Stub.asInterface(
8450                            ServiceManager.getService(Context.BACKUP_SERVICE));
8451                    if (bm != null) {
8452                        if (DEBUG_INSTALL) Log.v(TAG, "token " + token
8453                                + " to BM for possible restore");
8454                        try {
8455                            if (bm.isBackupServiceActive(UserHandle.USER_OWNER)) {
8456                                bm.restoreAtInstall(res.pkg.applicationInfo.packageName, token);
8457                            } else {
8458                                doRestore = false;
8459                            }
8460                        } catch (RemoteException e) {
8461                            // can't happen; the backup manager is local
8462                        } catch (Exception e) {
8463                            Slog.e(TAG, "Exception trying to enqueue restore", e);
8464                            doRestore = false;
8465                        }
8466                    } else {
8467                        Slog.e(TAG, "Backup Manager not found!");
8468                        doRestore = false;
8469                    }
8470                }
8471
8472                if (!doRestore) {
8473                    // No restore possible, or the Backup Manager was mysteriously not
8474                    // available -- just fire the post-install work request directly.
8475                    if (DEBUG_INSTALL) Log.v(TAG, "No restore - queue post-install for " + token);
8476                    Message msg = mHandler.obtainMessage(POST_INSTALL, token, 0);
8477                    mHandler.sendMessage(msg);
8478                }
8479            }
8480        });
8481    }
8482
8483    private abstract class HandlerParams {
8484        private static final int MAX_RETRIES = 4;
8485
8486        /**
8487         * Number of times startCopy() has been attempted and had a non-fatal
8488         * error.
8489         */
8490        private int mRetries = 0;
8491
8492        /** User handle for the user requesting the information or installation. */
8493        private final UserHandle mUser;
8494
8495        HandlerParams(UserHandle user) {
8496            mUser = user;
8497        }
8498
8499        UserHandle getUser() {
8500            return mUser;
8501        }
8502
8503        final boolean startCopy() {
8504            boolean res;
8505            try {
8506                if (DEBUG_INSTALL) Slog.i(TAG, "startCopy " + mUser + ": " + this);
8507
8508                if (++mRetries > MAX_RETRIES) {
8509                    Slog.w(TAG, "Failed to invoke remote methods on default container service. Giving up");
8510                    mHandler.sendEmptyMessage(MCS_GIVE_UP);
8511                    handleServiceError();
8512                    return false;
8513                } else {
8514                    handleStartCopy();
8515                    res = true;
8516                }
8517            } catch (RemoteException e) {
8518                if (DEBUG_INSTALL) Slog.i(TAG, "Posting install MCS_RECONNECT");
8519                mHandler.sendEmptyMessage(MCS_RECONNECT);
8520                res = false;
8521            }
8522            handleReturnCode();
8523            return res;
8524        }
8525
8526        final void serviceError() {
8527            if (DEBUG_INSTALL) Slog.i(TAG, "serviceError");
8528            handleServiceError();
8529            handleReturnCode();
8530        }
8531
8532        abstract void handleStartCopy() throws RemoteException;
8533        abstract void handleServiceError();
8534        abstract void handleReturnCode();
8535    }
8536
8537    class MeasureParams extends HandlerParams {
8538        private final PackageStats mStats;
8539        private boolean mSuccess;
8540
8541        private final IPackageStatsObserver mObserver;
8542
8543        public MeasureParams(PackageStats stats, IPackageStatsObserver observer) {
8544            super(new UserHandle(stats.userHandle));
8545            mObserver = observer;
8546            mStats = stats;
8547        }
8548
8549        @Override
8550        public String toString() {
8551            return "MeasureParams{"
8552                + Integer.toHexString(System.identityHashCode(this))
8553                + " " + mStats.packageName + "}";
8554        }
8555
8556        @Override
8557        void handleStartCopy() throws RemoteException {
8558            synchronized (mInstallLock) {
8559                mSuccess = getPackageSizeInfoLI(mStats.packageName, mStats.userHandle, mStats);
8560            }
8561
8562            if (mSuccess) {
8563                final boolean mounted;
8564                if (Environment.isExternalStorageEmulated()) {
8565                    mounted = true;
8566                } else {
8567                    final String status = Environment.getExternalStorageState();
8568                    mounted = (Environment.MEDIA_MOUNTED.equals(status)
8569                            || Environment.MEDIA_MOUNTED_READ_ONLY.equals(status));
8570                }
8571
8572                if (mounted) {
8573                    final UserEnvironment userEnv = new UserEnvironment(mStats.userHandle);
8574
8575                    mStats.externalCacheSize = calculateDirectorySize(mContainerService,
8576                            userEnv.buildExternalStorageAppCacheDirs(mStats.packageName));
8577
8578                    mStats.externalDataSize = calculateDirectorySize(mContainerService,
8579                            userEnv.buildExternalStorageAppDataDirs(mStats.packageName));
8580
8581                    // Always subtract cache size, since it's a subdirectory
8582                    mStats.externalDataSize -= mStats.externalCacheSize;
8583
8584                    mStats.externalMediaSize = calculateDirectorySize(mContainerService,
8585                            userEnv.buildExternalStorageAppMediaDirs(mStats.packageName));
8586
8587                    mStats.externalObbSize = calculateDirectorySize(mContainerService,
8588                            userEnv.buildExternalStorageAppObbDirs(mStats.packageName));
8589                }
8590            }
8591        }
8592
8593        @Override
8594        void handleReturnCode() {
8595            if (mObserver != null) {
8596                try {
8597                    mObserver.onGetStatsCompleted(mStats, mSuccess);
8598                } catch (RemoteException e) {
8599                    Slog.i(TAG, "Observer no longer exists.");
8600                }
8601            }
8602        }
8603
8604        @Override
8605        void handleServiceError() {
8606            Slog.e(TAG, "Could not measure application " + mStats.packageName
8607                            + " external storage");
8608        }
8609    }
8610
8611    private static long calculateDirectorySize(IMediaContainerService mcs, File[] paths)
8612            throws RemoteException {
8613        long result = 0;
8614        for (File path : paths) {
8615            result += mcs.calculateDirectorySize(path.getAbsolutePath());
8616        }
8617        return result;
8618    }
8619
8620    private static void clearDirectory(IMediaContainerService mcs, File[] paths) {
8621        for (File path : paths) {
8622            try {
8623                mcs.clearDirectory(path.getAbsolutePath());
8624            } catch (RemoteException e) {
8625            }
8626        }
8627    }
8628
8629    static class OriginInfo {
8630        /**
8631         * Location where install is coming from, before it has been
8632         * copied/renamed into place. This could be a single monolithic APK
8633         * file, or a cluster directory. This location may be untrusted.
8634         */
8635        final File file;
8636        final String cid;
8637
8638        /**
8639         * Flag indicating that {@link #file} or {@link #cid} has already been
8640         * staged, meaning downstream users don't need to defensively copy the
8641         * contents.
8642         */
8643        final boolean staged;
8644
8645        /**
8646         * Flag indicating that {@link #file} or {@link #cid} is an already
8647         * installed app that is being moved.
8648         */
8649        final boolean existing;
8650
8651        final String resolvedPath;
8652        final File resolvedFile;
8653
8654        static OriginInfo fromNothing() {
8655            return new OriginInfo(null, null, false, false);
8656        }
8657
8658        static OriginInfo fromUntrustedFile(File file) {
8659            return new OriginInfo(file, null, false, false);
8660        }
8661
8662        static OriginInfo fromExistingFile(File file) {
8663            return new OriginInfo(file, null, false, true);
8664        }
8665
8666        static OriginInfo fromStagedFile(File file) {
8667            return new OriginInfo(file, null, true, false);
8668        }
8669
8670        static OriginInfo fromStagedContainer(String cid) {
8671            return new OriginInfo(null, cid, true, false);
8672        }
8673
8674        private OriginInfo(File file, String cid, boolean staged, boolean existing) {
8675            this.file = file;
8676            this.cid = cid;
8677            this.staged = staged;
8678            this.existing = existing;
8679
8680            if (cid != null) {
8681                resolvedPath = PackageHelper.getSdDir(cid);
8682                resolvedFile = new File(resolvedPath);
8683            } else if (file != null) {
8684                resolvedPath = file.getAbsolutePath();
8685                resolvedFile = file;
8686            } else {
8687                resolvedPath = null;
8688                resolvedFile = null;
8689            }
8690        }
8691    }
8692
8693    class InstallParams extends HandlerParams {
8694        final OriginInfo origin;
8695        final IPackageInstallObserver2 observer;
8696        int installFlags;
8697        final String installerPackageName;
8698        final VerificationParams verificationParams;
8699        private InstallArgs mArgs;
8700        private int mRet;
8701        final String packageAbiOverride;
8702
8703        InstallParams(OriginInfo origin, IPackageInstallObserver2 observer, int installFlags,
8704                String installerPackageName, VerificationParams verificationParams, UserHandle user,
8705                String packageAbiOverride) {
8706            super(user);
8707            this.origin = origin;
8708            this.observer = observer;
8709            this.installFlags = installFlags;
8710            this.installerPackageName = installerPackageName;
8711            this.verificationParams = verificationParams;
8712            this.packageAbiOverride = packageAbiOverride;
8713        }
8714
8715        @Override
8716        public String toString() {
8717            return "InstallParams{" + Integer.toHexString(System.identityHashCode(this))
8718                    + " file=" + origin.file + " cid=" + origin.cid + "}";
8719        }
8720
8721        public ManifestDigest getManifestDigest() {
8722            if (verificationParams == null) {
8723                return null;
8724            }
8725            return verificationParams.getManifestDigest();
8726        }
8727
8728        private int installLocationPolicy(PackageInfoLite pkgLite) {
8729            String packageName = pkgLite.packageName;
8730            int installLocation = pkgLite.installLocation;
8731            boolean onSd = (installFlags & PackageManager.INSTALL_EXTERNAL) != 0;
8732            // reader
8733            synchronized (mPackages) {
8734                PackageParser.Package pkg = mPackages.get(packageName);
8735                if (pkg != null) {
8736                    if ((installFlags & PackageManager.INSTALL_REPLACE_EXISTING) != 0) {
8737                        // Check for downgrading.
8738                        if ((installFlags & PackageManager.INSTALL_ALLOW_DOWNGRADE) == 0) {
8739                            try {
8740                                checkDowngrade(pkg, pkgLite);
8741                            } catch (PackageManagerException e) {
8742                                Slog.w(TAG, "Downgrade detected: " + e.getMessage());
8743                                return PackageHelper.RECOMMEND_FAILED_VERSION_DOWNGRADE;
8744                            }
8745                        }
8746                        // Check for updated system application.
8747                        if ((pkg.applicationInfo.flags & ApplicationInfo.FLAG_SYSTEM) != 0) {
8748                            if (onSd) {
8749                                Slog.w(TAG, "Cannot install update to system app on sdcard");
8750                                return PackageHelper.RECOMMEND_FAILED_INVALID_LOCATION;
8751                            }
8752                            return PackageHelper.RECOMMEND_INSTALL_INTERNAL;
8753                        } else {
8754                            if (onSd) {
8755                                // Install flag overrides everything.
8756                                return PackageHelper.RECOMMEND_INSTALL_EXTERNAL;
8757                            }
8758                            // If current upgrade specifies particular preference
8759                            if (installLocation == PackageInfo.INSTALL_LOCATION_INTERNAL_ONLY) {
8760                                // Application explicitly specified internal.
8761                                return PackageHelper.RECOMMEND_INSTALL_INTERNAL;
8762                            } else if (installLocation == PackageInfo.INSTALL_LOCATION_PREFER_EXTERNAL) {
8763                                // App explictly prefers external. Let policy decide
8764                            } else {
8765                                // Prefer previous location
8766                                if (isExternal(pkg)) {
8767                                    return PackageHelper.RECOMMEND_INSTALL_EXTERNAL;
8768                                }
8769                                return PackageHelper.RECOMMEND_INSTALL_INTERNAL;
8770                            }
8771                        }
8772                    } else {
8773                        // Invalid install. Return error code
8774                        return PackageHelper.RECOMMEND_FAILED_ALREADY_EXISTS;
8775                    }
8776                }
8777            }
8778            // All the special cases have been taken care of.
8779            // Return result based on recommended install location.
8780            if (onSd) {
8781                return PackageHelper.RECOMMEND_INSTALL_EXTERNAL;
8782            }
8783            return pkgLite.recommendedInstallLocation;
8784        }
8785
8786        /*
8787         * Invoke remote method to get package information and install
8788         * location values. Override install location based on default
8789         * policy if needed and then create install arguments based
8790         * on the install location.
8791         */
8792        public void handleStartCopy() throws RemoteException {
8793            int ret = PackageManager.INSTALL_SUCCEEDED;
8794
8795            // If we're already staged, we've firmly committed to an install location
8796            if (origin.staged) {
8797                if (origin.file != null) {
8798                    installFlags |= PackageManager.INSTALL_INTERNAL;
8799                    installFlags &= ~PackageManager.INSTALL_EXTERNAL;
8800                } else if (origin.cid != null) {
8801                    installFlags |= PackageManager.INSTALL_EXTERNAL;
8802                    installFlags &= ~PackageManager.INSTALL_INTERNAL;
8803                } else {
8804                    throw new IllegalStateException("Invalid stage location");
8805                }
8806            }
8807
8808            final boolean onSd = (installFlags & PackageManager.INSTALL_EXTERNAL) != 0;
8809            final boolean onInt = (installFlags & PackageManager.INSTALL_INTERNAL) != 0;
8810
8811            PackageInfoLite pkgLite = null;
8812
8813            if (onInt && onSd) {
8814                // Check if both bits are set.
8815                Slog.w(TAG, "Conflicting flags specified for installing on both internal and external");
8816                ret = PackageManager.INSTALL_FAILED_INVALID_INSTALL_LOCATION;
8817            } else {
8818                pkgLite = mContainerService.getMinimalPackageInfo(origin.resolvedPath, installFlags,
8819                        packageAbiOverride);
8820
8821                /*
8822                 * If we have too little free space, try to free cache
8823                 * before giving up.
8824                 */
8825                if (!origin.staged && pkgLite.recommendedInstallLocation
8826                        == PackageHelper.RECOMMEND_FAILED_INSUFFICIENT_STORAGE) {
8827                    // TODO: focus freeing disk space on the target device
8828                    final StorageManager storage = StorageManager.from(mContext);
8829                    final long lowThreshold = storage.getStorageLowBytes(
8830                            Environment.getDataDirectory());
8831
8832                    final long sizeBytes = mContainerService.calculateInstalledSize(
8833                            origin.resolvedPath, isForwardLocked(), packageAbiOverride);
8834
8835                    if (mInstaller.freeCache(sizeBytes + lowThreshold) >= 0) {
8836                        pkgLite = mContainerService.getMinimalPackageInfo(origin.resolvedPath,
8837                                installFlags, packageAbiOverride);
8838                    }
8839
8840                    /*
8841                     * The cache free must have deleted the file we
8842                     * downloaded to install.
8843                     *
8844                     * TODO: fix the "freeCache" call to not delete
8845                     *       the file we care about.
8846                     */
8847                    if (pkgLite.recommendedInstallLocation
8848                            == PackageHelper.RECOMMEND_FAILED_INVALID_URI) {
8849                        pkgLite.recommendedInstallLocation
8850                            = PackageHelper.RECOMMEND_FAILED_INSUFFICIENT_STORAGE;
8851                    }
8852                }
8853            }
8854
8855            if (ret == PackageManager.INSTALL_SUCCEEDED) {
8856                int loc = pkgLite.recommendedInstallLocation;
8857                if (loc == PackageHelper.RECOMMEND_FAILED_INVALID_LOCATION) {
8858                    ret = PackageManager.INSTALL_FAILED_INVALID_INSTALL_LOCATION;
8859                } else if (loc == PackageHelper.RECOMMEND_FAILED_ALREADY_EXISTS) {
8860                    ret = PackageManager.INSTALL_FAILED_ALREADY_EXISTS;
8861                } else if (loc == PackageHelper.RECOMMEND_FAILED_INSUFFICIENT_STORAGE) {
8862                    ret = PackageManager.INSTALL_FAILED_INSUFFICIENT_STORAGE;
8863                } else if (loc == PackageHelper.RECOMMEND_FAILED_INVALID_APK) {
8864                    ret = PackageManager.INSTALL_FAILED_INVALID_APK;
8865                } else if (loc == PackageHelper.RECOMMEND_FAILED_INVALID_URI) {
8866                    ret = PackageManager.INSTALL_FAILED_INVALID_URI;
8867                } else if (loc == PackageHelper.RECOMMEND_MEDIA_UNAVAILABLE) {
8868                    ret = PackageManager.INSTALL_FAILED_MEDIA_UNAVAILABLE;
8869                } else {
8870                    // Override with defaults if needed.
8871                    loc = installLocationPolicy(pkgLite);
8872                    if (loc == PackageHelper.RECOMMEND_FAILED_VERSION_DOWNGRADE) {
8873                        ret = PackageManager.INSTALL_FAILED_VERSION_DOWNGRADE;
8874                    } else if (!onSd && !onInt) {
8875                        // Override install location with flags
8876                        if (loc == PackageHelper.RECOMMEND_INSTALL_EXTERNAL) {
8877                            // Set the flag to install on external media.
8878                            installFlags |= PackageManager.INSTALL_EXTERNAL;
8879                            installFlags &= ~PackageManager.INSTALL_INTERNAL;
8880                        } else {
8881                            // Make sure the flag for installing on external
8882                            // media is unset
8883                            installFlags |= PackageManager.INSTALL_INTERNAL;
8884                            installFlags &= ~PackageManager.INSTALL_EXTERNAL;
8885                        }
8886                    }
8887                }
8888            }
8889
8890            final InstallArgs args = createInstallArgs(this);
8891            mArgs = args;
8892
8893            if (ret == PackageManager.INSTALL_SUCCEEDED) {
8894                 /*
8895                 * ADB installs appear as UserHandle.USER_ALL, and can only be performed by
8896                 * UserHandle.USER_OWNER, so use the package verifier for UserHandle.USER_OWNER.
8897                 */
8898                int userIdentifier = getUser().getIdentifier();
8899                if (userIdentifier == UserHandle.USER_ALL
8900                        && ((installFlags & PackageManager.INSTALL_FROM_ADB) != 0)) {
8901                    userIdentifier = UserHandle.USER_OWNER;
8902                }
8903
8904                /*
8905                 * Determine if we have any installed package verifiers. If we
8906                 * do, then we'll defer to them to verify the packages.
8907                 */
8908                final int requiredUid = mRequiredVerifierPackage == null ? -1
8909                        : getPackageUid(mRequiredVerifierPackage, userIdentifier);
8910                if (!origin.existing && requiredUid != -1
8911                        && isVerificationEnabled(userIdentifier, installFlags)) {
8912                    final Intent verification = new Intent(
8913                            Intent.ACTION_PACKAGE_NEEDS_VERIFICATION);
8914                    verification.addFlags(Intent.FLAG_RECEIVER_FOREGROUND);
8915                    verification.setDataAndType(Uri.fromFile(new File(origin.resolvedPath)),
8916                            PACKAGE_MIME_TYPE);
8917                    verification.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
8918
8919                    final List<ResolveInfo> receivers = queryIntentReceivers(verification,
8920                            PACKAGE_MIME_TYPE, PackageManager.GET_DISABLED_COMPONENTS,
8921                            0 /* TODO: Which userId? */);
8922
8923                    if (DEBUG_VERIFY) {
8924                        Slog.d(TAG, "Found " + receivers.size() + " verifiers for intent "
8925                                + verification.toString() + " with " + pkgLite.verifiers.length
8926                                + " optional verifiers");
8927                    }
8928
8929                    final int verificationId = mPendingVerificationToken++;
8930
8931                    verification.putExtra(PackageManager.EXTRA_VERIFICATION_ID, verificationId);
8932
8933                    verification.putExtra(PackageManager.EXTRA_VERIFICATION_INSTALLER_PACKAGE,
8934                            installerPackageName);
8935
8936                    verification.putExtra(PackageManager.EXTRA_VERIFICATION_INSTALL_FLAGS,
8937                            installFlags);
8938
8939                    verification.putExtra(PackageManager.EXTRA_VERIFICATION_PACKAGE_NAME,
8940                            pkgLite.packageName);
8941
8942                    verification.putExtra(PackageManager.EXTRA_VERIFICATION_VERSION_CODE,
8943                            pkgLite.versionCode);
8944
8945                    if (verificationParams != null) {
8946                        if (verificationParams.getVerificationURI() != null) {
8947                           verification.putExtra(PackageManager.EXTRA_VERIFICATION_URI,
8948                                 verificationParams.getVerificationURI());
8949                        }
8950                        if (verificationParams.getOriginatingURI() != null) {
8951                            verification.putExtra(Intent.EXTRA_ORIGINATING_URI,
8952                                  verificationParams.getOriginatingURI());
8953                        }
8954                        if (verificationParams.getReferrer() != null) {
8955                            verification.putExtra(Intent.EXTRA_REFERRER,
8956                                  verificationParams.getReferrer());
8957                        }
8958                        if (verificationParams.getOriginatingUid() >= 0) {
8959                            verification.putExtra(Intent.EXTRA_ORIGINATING_UID,
8960                                  verificationParams.getOriginatingUid());
8961                        }
8962                        if (verificationParams.getInstallerUid() >= 0) {
8963                            verification.putExtra(PackageManager.EXTRA_VERIFICATION_INSTALLER_UID,
8964                                  verificationParams.getInstallerUid());
8965                        }
8966                    }
8967
8968                    final PackageVerificationState verificationState = new PackageVerificationState(
8969                            requiredUid, args);
8970
8971                    mPendingVerification.append(verificationId, verificationState);
8972
8973                    final List<ComponentName> sufficientVerifiers = matchVerifiers(pkgLite,
8974                            receivers, verificationState);
8975
8976                    /*
8977                     * If any sufficient verifiers were listed in the package
8978                     * manifest, attempt to ask them.
8979                     */
8980                    if (sufficientVerifiers != null) {
8981                        final int N = sufficientVerifiers.size();
8982                        if (N == 0) {
8983                            Slog.i(TAG, "Additional verifiers required, but none installed.");
8984                            ret = PackageManager.INSTALL_FAILED_VERIFICATION_FAILURE;
8985                        } else {
8986                            for (int i = 0; i < N; i++) {
8987                                final ComponentName verifierComponent = sufficientVerifiers.get(i);
8988
8989                                final Intent sufficientIntent = new Intent(verification);
8990                                sufficientIntent.setComponent(verifierComponent);
8991
8992                                mContext.sendBroadcastAsUser(sufficientIntent, getUser());
8993                            }
8994                        }
8995                    }
8996
8997                    final ComponentName requiredVerifierComponent = matchComponentForVerifier(
8998                            mRequiredVerifierPackage, receivers);
8999                    if (ret == PackageManager.INSTALL_SUCCEEDED
9000                            && mRequiredVerifierPackage != null) {
9001                        /*
9002                         * Send the intent to the required verification agent,
9003                         * but only start the verification timeout after the
9004                         * target BroadcastReceivers have run.
9005                         */
9006                        verification.setComponent(requiredVerifierComponent);
9007                        mContext.sendOrderedBroadcastAsUser(verification, getUser(),
9008                                android.Manifest.permission.PACKAGE_VERIFICATION_AGENT,
9009                                new BroadcastReceiver() {
9010                                    @Override
9011                                    public void onReceive(Context context, Intent intent) {
9012                                        final Message msg = mHandler
9013                                                .obtainMessage(CHECK_PENDING_VERIFICATION);
9014                                        msg.arg1 = verificationId;
9015                                        mHandler.sendMessageDelayed(msg, getVerificationTimeout());
9016                                    }
9017                                }, null, 0, null, null);
9018
9019                        /*
9020                         * We don't want the copy to proceed until verification
9021                         * succeeds, so null out this field.
9022                         */
9023                        mArgs = null;
9024                    }
9025                } else {
9026                    /*
9027                     * No package verification is enabled, so immediately start
9028                     * the remote call to initiate copy using temporary file.
9029                     */
9030                    ret = args.copyApk(mContainerService, true);
9031                }
9032            }
9033
9034            mRet = ret;
9035        }
9036
9037        @Override
9038        void handleReturnCode() {
9039            // If mArgs is null, then MCS couldn't be reached. When it
9040            // reconnects, it will try again to install. At that point, this
9041            // will succeed.
9042            if (mArgs != null) {
9043                processPendingInstall(mArgs, mRet);
9044            }
9045        }
9046
9047        @Override
9048        void handleServiceError() {
9049            mArgs = createInstallArgs(this);
9050            mRet = PackageManager.INSTALL_FAILED_INTERNAL_ERROR;
9051        }
9052
9053        public boolean isForwardLocked() {
9054            return (installFlags & PackageManager.INSTALL_FORWARD_LOCK) != 0;
9055        }
9056    }
9057
9058    /**
9059     * Used during creation of InstallArgs
9060     *
9061     * @param installFlags package installation flags
9062     * @return true if should be installed on external storage
9063     */
9064    private static boolean installOnSd(int installFlags) {
9065        if ((installFlags & PackageManager.INSTALL_INTERNAL) != 0) {
9066            return false;
9067        }
9068        if ((installFlags & PackageManager.INSTALL_EXTERNAL) != 0) {
9069            return true;
9070        }
9071        return false;
9072    }
9073
9074    /**
9075     * Used during creation of InstallArgs
9076     *
9077     * @param installFlags package installation flags
9078     * @return true if should be installed as forward locked
9079     */
9080    private static boolean installForwardLocked(int installFlags) {
9081        return (installFlags & PackageManager.INSTALL_FORWARD_LOCK) != 0;
9082    }
9083
9084    private InstallArgs createInstallArgs(InstallParams params) {
9085        if (installOnSd(params.installFlags) || params.isForwardLocked()) {
9086            return new AsecInstallArgs(params);
9087        } else {
9088            return new FileInstallArgs(params);
9089        }
9090    }
9091
9092    /**
9093     * Create args that describe an existing installed package. Typically used
9094     * when cleaning up old installs, or used as a move source.
9095     */
9096    private InstallArgs createInstallArgsForExisting(int installFlags, String codePath,
9097            String resourcePath, String nativeLibraryRoot, String[] instructionSets) {
9098        final boolean isInAsec;
9099        if (installOnSd(installFlags)) {
9100            /* Apps on SD card are always in ASEC containers. */
9101            isInAsec = true;
9102        } else if (installForwardLocked(installFlags)
9103                && !codePath.startsWith(mDrmAppPrivateInstallDir.getAbsolutePath())) {
9104            /*
9105             * Forward-locked apps are only in ASEC containers if they're the
9106             * new style
9107             */
9108            isInAsec = true;
9109        } else {
9110            isInAsec = false;
9111        }
9112
9113        if (isInAsec) {
9114            return new AsecInstallArgs(codePath, instructionSets,
9115                    installOnSd(installFlags), installForwardLocked(installFlags));
9116        } else {
9117            return new FileInstallArgs(codePath, resourcePath, nativeLibraryRoot,
9118                    instructionSets);
9119        }
9120    }
9121
9122    static abstract class InstallArgs {
9123        /** @see InstallParams#origin */
9124        final OriginInfo origin;
9125
9126        final IPackageInstallObserver2 observer;
9127        // Always refers to PackageManager flags only
9128        final int installFlags;
9129        final String installerPackageName;
9130        final ManifestDigest manifestDigest;
9131        final UserHandle user;
9132        final String abiOverride;
9133
9134        // The list of instruction sets supported by this app. This is currently
9135        // only used during the rmdex() phase to clean up resources. We can get rid of this
9136        // if we move dex files under the common app path.
9137        /* nullable */ String[] instructionSets;
9138
9139        InstallArgs(OriginInfo origin, IPackageInstallObserver2 observer, int installFlags,
9140                String installerPackageName, ManifestDigest manifestDigest, UserHandle user,
9141                String[] instructionSets, String abiOverride) {
9142            this.origin = origin;
9143            this.installFlags = installFlags;
9144            this.observer = observer;
9145            this.installerPackageName = installerPackageName;
9146            this.manifestDigest = manifestDigest;
9147            this.user = user;
9148            this.instructionSets = instructionSets;
9149            this.abiOverride = abiOverride;
9150        }
9151
9152        abstract int copyApk(IMediaContainerService imcs, boolean temp) throws RemoteException;
9153        abstract int doPreInstall(int status);
9154
9155        /**
9156         * Rename package into final resting place. All paths on the given
9157         * scanned package should be updated to reflect the rename.
9158         */
9159        abstract boolean doRename(int status, PackageParser.Package pkg, String oldCodePath);
9160        abstract int doPostInstall(int status, int uid);
9161
9162        /** @see PackageSettingBase#codePathString */
9163        abstract String getCodePath();
9164        /** @see PackageSettingBase#resourcePathString */
9165        abstract String getResourcePath();
9166        abstract String getLegacyNativeLibraryPath();
9167
9168        // Need installer lock especially for dex file removal.
9169        abstract void cleanUpResourcesLI();
9170        abstract boolean doPostDeleteLI(boolean delete);
9171        abstract boolean checkFreeStorage(IMediaContainerService imcs) throws RemoteException;
9172
9173        /**
9174         * Called before the source arguments are copied. This is used mostly
9175         * for MoveParams when it needs to read the source file to put it in the
9176         * destination.
9177         */
9178        int doPreCopy() {
9179            return PackageManager.INSTALL_SUCCEEDED;
9180        }
9181
9182        /**
9183         * Called after the source arguments are copied. This is used mostly for
9184         * MoveParams when it needs to read the source file to put it in the
9185         * destination.
9186         *
9187         * @return
9188         */
9189        int doPostCopy(int uid) {
9190            return PackageManager.INSTALL_SUCCEEDED;
9191        }
9192
9193        protected boolean isFwdLocked() {
9194            return (installFlags & PackageManager.INSTALL_FORWARD_LOCK) != 0;
9195        }
9196
9197        protected boolean isExternal() {
9198            return (installFlags & PackageManager.INSTALL_EXTERNAL) != 0;
9199        }
9200
9201        UserHandle getUser() {
9202            return user;
9203        }
9204    }
9205
9206    private void removeDexFiles(List<String> allCodePaths, String[] instructionSets) {
9207        if (!allCodePaths.isEmpty()) {
9208            if (instructionSets == null) {
9209                throw new IllegalStateException("instructionSet == null");
9210            }
9211            String[] dexCodeInstructionSets = getDexCodeInstructionSets(instructionSets);
9212            for (String codePath : allCodePaths) {
9213                for (String dexCodeInstructionSet : dexCodeInstructionSets) {
9214                    int retCode = mInstaller.rmdex(codePath, dexCodeInstructionSet);
9215                    if (retCode < 0) {
9216                        Slog.w(TAG, "Couldn't remove dex file for package: "
9217                                + " at location " + codePath + ", retcode=" + retCode);
9218                        // we don't consider this to be a failure of the core package deletion
9219                    }
9220                }
9221            }
9222        }
9223    }
9224
9225    /**
9226     * Logic to handle installation of non-ASEC applications, including copying
9227     * and renaming logic.
9228     */
9229    class FileInstallArgs extends InstallArgs {
9230        private File codeFile;
9231        private File resourceFile;
9232        private File legacyNativeLibraryPath;
9233
9234        // Example topology:
9235        // /data/app/com.example/base.apk
9236        // /data/app/com.example/split_foo.apk
9237        // /data/app/com.example/lib/arm/libfoo.so
9238        // /data/app/com.example/lib/arm64/libfoo.so
9239        // /data/app/com.example/dalvik/arm/base.apk@classes.dex
9240
9241        /** New install */
9242        FileInstallArgs(InstallParams params) {
9243            super(params.origin, params.observer, params.installFlags,
9244                    params.installerPackageName, params.getManifestDigest(), params.getUser(),
9245                    null /* instruction sets */, params.packageAbiOverride);
9246            if (isFwdLocked()) {
9247                throw new IllegalArgumentException("Forward locking only supported in ASEC");
9248            }
9249        }
9250
9251        /** Existing install */
9252        FileInstallArgs(String codePath, String resourcePath, String legacyNativeLibraryPath,
9253                String[] instructionSets) {
9254            super(OriginInfo.fromNothing(), null, 0, null, null, null, instructionSets, null);
9255            this.codeFile = (codePath != null) ? new File(codePath) : null;
9256            this.resourceFile = (resourcePath != null) ? new File(resourcePath) : null;
9257            this.legacyNativeLibraryPath = (legacyNativeLibraryPath != null) ?
9258                    new File(legacyNativeLibraryPath) : null;
9259        }
9260
9261        boolean checkFreeStorage(IMediaContainerService imcs) throws RemoteException {
9262            final long sizeBytes = imcs.calculateInstalledSize(origin.file.getAbsolutePath(),
9263                    isFwdLocked(), abiOverride);
9264
9265            final StorageManager storage = StorageManager.from(mContext);
9266            return (sizeBytes <= storage.getStorageBytesUntilLow(Environment.getDataDirectory()));
9267        }
9268
9269        int copyApk(IMediaContainerService imcs, boolean temp) throws RemoteException {
9270            if (origin.staged) {
9271                Slog.d(TAG, origin.file + " already staged; skipping copy");
9272                codeFile = origin.file;
9273                resourceFile = origin.file;
9274                return PackageManager.INSTALL_SUCCEEDED;
9275            }
9276
9277            try {
9278                final File tempDir = mInstallerService.allocateInternalStageDirLegacy();
9279                codeFile = tempDir;
9280                resourceFile = tempDir;
9281            } catch (IOException e) {
9282                Slog.w(TAG, "Failed to create copy file: " + e);
9283                return PackageManager.INSTALL_FAILED_INSUFFICIENT_STORAGE;
9284            }
9285
9286            final IParcelFileDescriptorFactory target = new IParcelFileDescriptorFactory.Stub() {
9287                @Override
9288                public ParcelFileDescriptor open(String name, int mode) throws RemoteException {
9289                    if (!FileUtils.isValidExtFilename(name)) {
9290                        throw new IllegalArgumentException("Invalid filename: " + name);
9291                    }
9292                    try {
9293                        final File file = new File(codeFile, name);
9294                        final FileDescriptor fd = Os.open(file.getAbsolutePath(),
9295                                O_RDWR | O_CREAT, 0644);
9296                        Os.chmod(file.getAbsolutePath(), 0644);
9297                        return new ParcelFileDescriptor(fd);
9298                    } catch (ErrnoException e) {
9299                        throw new RemoteException("Failed to open: " + e.getMessage());
9300                    }
9301                }
9302            };
9303
9304            int ret = PackageManager.INSTALL_SUCCEEDED;
9305            ret = imcs.copyPackage(origin.file.getAbsolutePath(), target);
9306            if (ret != PackageManager.INSTALL_SUCCEEDED) {
9307                Slog.e(TAG, "Failed to copy package");
9308                return ret;
9309            }
9310
9311            final File libraryRoot = new File(codeFile, LIB_DIR_NAME);
9312            NativeLibraryHelper.Handle handle = null;
9313            try {
9314                handle = NativeLibraryHelper.Handle.create(codeFile);
9315                ret = NativeLibraryHelper.copyNativeBinariesWithOverride(handle, libraryRoot,
9316                        abiOverride);
9317            } catch (IOException e) {
9318                Slog.e(TAG, "Copying native libraries failed", e);
9319                ret = PackageManager.INSTALL_FAILED_INTERNAL_ERROR;
9320            } finally {
9321                IoUtils.closeQuietly(handle);
9322            }
9323
9324            return ret;
9325        }
9326
9327        int doPreInstall(int status) {
9328            if (status != PackageManager.INSTALL_SUCCEEDED) {
9329                cleanUp();
9330            }
9331            return status;
9332        }
9333
9334        boolean doRename(int status, PackageParser.Package pkg, String oldCodePath) {
9335            if (status != PackageManager.INSTALL_SUCCEEDED) {
9336                cleanUp();
9337                return false;
9338            } else {
9339                final File beforeCodeFile = codeFile;
9340                final File afterCodeFile = getNextCodePath(pkg.packageName);
9341
9342                Slog.d(TAG, "Renaming " + beforeCodeFile + " to " + afterCodeFile);
9343                try {
9344                    Os.rename(beforeCodeFile.getAbsolutePath(), afterCodeFile.getAbsolutePath());
9345                } catch (ErrnoException e) {
9346                    Slog.d(TAG, "Failed to rename", e);
9347                    return false;
9348                }
9349
9350                if (!SELinux.restoreconRecursive(afterCodeFile)) {
9351                    Slog.d(TAG, "Failed to restorecon");
9352                    return false;
9353                }
9354
9355                // Reflect the rename internally
9356                codeFile = afterCodeFile;
9357                resourceFile = afterCodeFile;
9358
9359                // Reflect the rename in scanned details
9360                pkg.codePath = afterCodeFile.getAbsolutePath();
9361                pkg.baseCodePath = FileUtils.rewriteAfterRename(beforeCodeFile, afterCodeFile,
9362                        pkg.baseCodePath);
9363                pkg.splitCodePaths = FileUtils.rewriteAfterRename(beforeCodeFile, afterCodeFile,
9364                        pkg.splitCodePaths);
9365
9366                // Reflect the rename in app info
9367                pkg.applicationInfo.setCodePath(pkg.codePath);
9368                pkg.applicationInfo.setBaseCodePath(pkg.baseCodePath);
9369                pkg.applicationInfo.setSplitCodePaths(pkg.splitCodePaths);
9370                pkg.applicationInfo.setResourcePath(pkg.codePath);
9371                pkg.applicationInfo.setBaseResourcePath(pkg.baseCodePath);
9372                pkg.applicationInfo.setSplitResourcePaths(pkg.splitCodePaths);
9373
9374                return true;
9375            }
9376        }
9377
9378        int doPostInstall(int status, int uid) {
9379            if (status != PackageManager.INSTALL_SUCCEEDED) {
9380                cleanUp();
9381            }
9382            return status;
9383        }
9384
9385        @Override
9386        String getCodePath() {
9387            return (codeFile != null) ? codeFile.getAbsolutePath() : null;
9388        }
9389
9390        @Override
9391        String getResourcePath() {
9392            return (resourceFile != null) ? resourceFile.getAbsolutePath() : null;
9393        }
9394
9395        @Override
9396        String getLegacyNativeLibraryPath() {
9397            return (legacyNativeLibraryPath != null) ? legacyNativeLibraryPath.getAbsolutePath() : null;
9398        }
9399
9400        private boolean cleanUp() {
9401            if (codeFile == null || !codeFile.exists()) {
9402                return false;
9403            }
9404
9405            if (codeFile.isDirectory()) {
9406                mInstaller.rmPackageDir(codeFile.getAbsolutePath());
9407            } else {
9408                codeFile.delete();
9409            }
9410
9411            if (resourceFile != null && !FileUtils.contains(codeFile, resourceFile)) {
9412                resourceFile.delete();
9413            }
9414
9415            if (legacyNativeLibraryPath != null && !FileUtils.contains(codeFile, legacyNativeLibraryPath)) {
9416                if (!FileUtils.deleteContents(legacyNativeLibraryPath)) {
9417                    Slog.w(TAG, "Couldn't delete native library directory " + legacyNativeLibraryPath);
9418                }
9419                legacyNativeLibraryPath.delete();
9420            }
9421
9422            return true;
9423        }
9424
9425        void cleanUpResourcesLI() {
9426            // Try enumerating all code paths before deleting
9427            List<String> allCodePaths = Collections.EMPTY_LIST;
9428            if (codeFile != null && codeFile.exists()) {
9429                try {
9430                    final PackageLite pkg = PackageParser.parsePackageLite(codeFile, 0);
9431                    allCodePaths = pkg.getAllCodePaths();
9432                } catch (PackageParserException e) {
9433                    // Ignored; we tried our best
9434                }
9435            }
9436
9437            cleanUp();
9438            removeDexFiles(allCodePaths, instructionSets);
9439        }
9440
9441        boolean doPostDeleteLI(boolean delete) {
9442            // XXX err, shouldn't we respect the delete flag?
9443            cleanUpResourcesLI();
9444            return true;
9445        }
9446    }
9447
9448    private boolean isAsecExternal(String cid) {
9449        final String asecPath = PackageHelper.getSdFilesystem(cid);
9450        return !asecPath.startsWith(mAsecInternalPath);
9451    }
9452
9453    private static void maybeThrowExceptionForMultiArchCopy(String message, int copyRet) throws
9454            PackageManagerException {
9455        if (copyRet < 0) {
9456            if (copyRet != PackageManager.NO_NATIVE_LIBRARIES &&
9457                    copyRet != PackageManager.INSTALL_FAILED_NO_MATCHING_ABIS) {
9458                throw new PackageManagerException(copyRet, message);
9459            }
9460        }
9461    }
9462
9463    /**
9464     * Extract the MountService "container ID" from the full code path of an
9465     * .apk.
9466     */
9467    static String cidFromCodePath(String fullCodePath) {
9468        int eidx = fullCodePath.lastIndexOf("/");
9469        String subStr1 = fullCodePath.substring(0, eidx);
9470        int sidx = subStr1.lastIndexOf("/");
9471        return subStr1.substring(sidx+1, eidx);
9472    }
9473
9474    /**
9475     * Logic to handle installation of ASEC applications, including copying and
9476     * renaming logic.
9477     */
9478    class AsecInstallArgs extends InstallArgs {
9479        static final String RES_FILE_NAME = "pkg.apk";
9480        static final String PUBLIC_RES_FILE_NAME = "res.zip";
9481
9482        String cid;
9483        String packagePath;
9484        String resourcePath;
9485        String legacyNativeLibraryDir;
9486
9487        /** New install */
9488        AsecInstallArgs(InstallParams params) {
9489            super(params.origin, params.observer, params.installFlags,
9490                    params.installerPackageName, params.getManifestDigest(),
9491                    params.getUser(), null /* instruction sets */,
9492                    params.packageAbiOverride);
9493        }
9494
9495        /** Existing install */
9496        AsecInstallArgs(String fullCodePath, String[] instructionSets,
9497                        boolean isExternal, boolean isForwardLocked) {
9498            super(OriginInfo.fromNothing(), null, (isExternal ? INSTALL_EXTERNAL : 0)
9499                    | (isForwardLocked ? INSTALL_FORWARD_LOCK : 0), null, null, null,
9500                    instructionSets, null);
9501            // Hackily pretend we're still looking at a full code path
9502            if (!fullCodePath.endsWith(RES_FILE_NAME)) {
9503                fullCodePath = new File(fullCodePath, RES_FILE_NAME).getAbsolutePath();
9504            }
9505
9506            // Extract cid from fullCodePath
9507            int eidx = fullCodePath.lastIndexOf("/");
9508            String subStr1 = fullCodePath.substring(0, eidx);
9509            int sidx = subStr1.lastIndexOf("/");
9510            cid = subStr1.substring(sidx+1, eidx);
9511            setMountPath(subStr1);
9512        }
9513
9514        AsecInstallArgs(String cid, String[] instructionSets, boolean isForwardLocked) {
9515            super(OriginInfo.fromNothing(), null, (isAsecExternal(cid) ? INSTALL_EXTERNAL : 0)
9516                    | (isForwardLocked ? INSTALL_FORWARD_LOCK : 0), null, null, null,
9517                    instructionSets, null);
9518            this.cid = cid;
9519            setMountPath(PackageHelper.getSdDir(cid));
9520        }
9521
9522        void createCopyFile() {
9523            cid = mInstallerService.allocateExternalStageCidLegacy();
9524        }
9525
9526        boolean checkFreeStorage(IMediaContainerService imcs) throws RemoteException {
9527            final long sizeBytes = imcs.calculateInstalledSize(packagePath, isFwdLocked(),
9528                    abiOverride);
9529
9530            final File target;
9531            if (isExternal()) {
9532                target = new UserEnvironment(UserHandle.USER_OWNER).getExternalStorageDirectory();
9533            } else {
9534                target = Environment.getDataDirectory();
9535            }
9536
9537            final StorageManager storage = StorageManager.from(mContext);
9538            return (sizeBytes <= storage.getStorageBytesUntilLow(target));
9539        }
9540
9541        int copyApk(IMediaContainerService imcs, boolean temp) throws RemoteException {
9542            if (origin.staged) {
9543                Slog.d(TAG, origin.cid + " already staged; skipping copy");
9544                cid = origin.cid;
9545                setMountPath(PackageHelper.getSdDir(cid));
9546                return PackageManager.INSTALL_SUCCEEDED;
9547            }
9548
9549            if (temp) {
9550                createCopyFile();
9551            } else {
9552                /*
9553                 * Pre-emptively destroy the container since it's destroyed if
9554                 * copying fails due to it existing anyway.
9555                 */
9556                PackageHelper.destroySdDir(cid);
9557            }
9558
9559            final String newMountPath = imcs.copyPackageToContainer(
9560                    origin.file.getAbsolutePath(), cid, getEncryptKey(), isExternal(),
9561                    isFwdLocked(), deriveAbiOverride(abiOverride, null /* settings */));
9562
9563            if (newMountPath != null) {
9564                setMountPath(newMountPath);
9565                return PackageManager.INSTALL_SUCCEEDED;
9566            } else {
9567                return PackageManager.INSTALL_FAILED_CONTAINER_ERROR;
9568            }
9569        }
9570
9571        @Override
9572        String getCodePath() {
9573            return packagePath;
9574        }
9575
9576        @Override
9577        String getResourcePath() {
9578            return resourcePath;
9579        }
9580
9581        @Override
9582        String getLegacyNativeLibraryPath() {
9583            return legacyNativeLibraryDir;
9584        }
9585
9586        int doPreInstall(int status) {
9587            if (status != PackageManager.INSTALL_SUCCEEDED) {
9588                // Destroy container
9589                PackageHelper.destroySdDir(cid);
9590            } else {
9591                boolean mounted = PackageHelper.isContainerMounted(cid);
9592                if (!mounted) {
9593                    String newMountPath = PackageHelper.mountSdDir(cid, getEncryptKey(),
9594                            Process.SYSTEM_UID);
9595                    if (newMountPath != null) {
9596                        setMountPath(newMountPath);
9597                    } else {
9598                        return PackageManager.INSTALL_FAILED_CONTAINER_ERROR;
9599                    }
9600                }
9601            }
9602            return status;
9603        }
9604
9605        boolean doRename(int status, PackageParser.Package pkg, String oldCodePath) {
9606            String newCacheId = getNextCodePath(oldCodePath, pkg.packageName, "/" + RES_FILE_NAME);
9607            String newMountPath = null;
9608            if (PackageHelper.isContainerMounted(cid)) {
9609                // Unmount the container
9610                if (!PackageHelper.unMountSdDir(cid)) {
9611                    Slog.i(TAG, "Failed to unmount " + cid + " before renaming");
9612                    return false;
9613                }
9614            }
9615            if (!PackageHelper.renameSdDir(cid, newCacheId)) {
9616                Slog.e(TAG, "Failed to rename " + cid + " to " + newCacheId +
9617                        " which might be stale. Will try to clean up.");
9618                // Clean up the stale container and proceed to recreate.
9619                if (!PackageHelper.destroySdDir(newCacheId)) {
9620                    Slog.e(TAG, "Very strange. Cannot clean up stale container " + newCacheId);
9621                    return false;
9622                }
9623                // Successfully cleaned up stale container. Try to rename again.
9624                if (!PackageHelper.renameSdDir(cid, newCacheId)) {
9625                    Slog.e(TAG, "Failed to rename " + cid + " to " + newCacheId
9626                            + " inspite of cleaning it up.");
9627                    return false;
9628                }
9629            }
9630            if (!PackageHelper.isContainerMounted(newCacheId)) {
9631                Slog.w(TAG, "Mounting container " + newCacheId);
9632                newMountPath = PackageHelper.mountSdDir(newCacheId,
9633                        getEncryptKey(), Process.SYSTEM_UID);
9634            } else {
9635                newMountPath = PackageHelper.getSdDir(newCacheId);
9636            }
9637            if (newMountPath == null) {
9638                Slog.w(TAG, "Failed to get cache path for  " + newCacheId);
9639                return false;
9640            }
9641            Log.i(TAG, "Succesfully renamed " + cid +
9642                    " to " + newCacheId +
9643                    " at new path: " + newMountPath);
9644            cid = newCacheId;
9645
9646            final File beforeCodeFile = new File(packagePath);
9647            setMountPath(newMountPath);
9648            final File afterCodeFile = new File(packagePath);
9649
9650            // Reflect the rename in scanned details
9651            pkg.codePath = afterCodeFile.getAbsolutePath();
9652            pkg.baseCodePath = FileUtils.rewriteAfterRename(beforeCodeFile, afterCodeFile,
9653                    pkg.baseCodePath);
9654            pkg.splitCodePaths = FileUtils.rewriteAfterRename(beforeCodeFile, afterCodeFile,
9655                    pkg.splitCodePaths);
9656
9657            // Reflect the rename in app info
9658            pkg.applicationInfo.setCodePath(pkg.codePath);
9659            pkg.applicationInfo.setBaseCodePath(pkg.baseCodePath);
9660            pkg.applicationInfo.setSplitCodePaths(pkg.splitCodePaths);
9661            pkg.applicationInfo.setResourcePath(pkg.codePath);
9662            pkg.applicationInfo.setBaseResourcePath(pkg.baseCodePath);
9663            pkg.applicationInfo.setSplitResourcePaths(pkg.splitCodePaths);
9664
9665            return true;
9666        }
9667
9668        private void setMountPath(String mountPath) {
9669            final File mountFile = new File(mountPath);
9670
9671            final File monolithicFile = new File(mountFile, RES_FILE_NAME);
9672            if (monolithicFile.exists()) {
9673                packagePath = monolithicFile.getAbsolutePath();
9674                if (isFwdLocked()) {
9675                    resourcePath = new File(mountFile, PUBLIC_RES_FILE_NAME).getAbsolutePath();
9676                } else {
9677                    resourcePath = packagePath;
9678                }
9679            } else {
9680                packagePath = mountFile.getAbsolutePath();
9681                resourcePath = packagePath;
9682            }
9683
9684            legacyNativeLibraryDir = new File(mountFile, LIB_DIR_NAME).getAbsolutePath();
9685        }
9686
9687        int doPostInstall(int status, int uid) {
9688            if (status != PackageManager.INSTALL_SUCCEEDED) {
9689                cleanUp();
9690            } else {
9691                final int groupOwner;
9692                final String protectedFile;
9693                if (isFwdLocked()) {
9694                    groupOwner = UserHandle.getSharedAppGid(uid);
9695                    protectedFile = RES_FILE_NAME;
9696                } else {
9697                    groupOwner = -1;
9698                    protectedFile = null;
9699                }
9700
9701                if (uid < Process.FIRST_APPLICATION_UID
9702                        || !PackageHelper.fixSdPermissions(cid, groupOwner, protectedFile)) {
9703                    Slog.e(TAG, "Failed to finalize " + cid);
9704                    PackageHelper.destroySdDir(cid);
9705                    return PackageManager.INSTALL_FAILED_CONTAINER_ERROR;
9706                }
9707
9708                boolean mounted = PackageHelper.isContainerMounted(cid);
9709                if (!mounted) {
9710                    PackageHelper.mountSdDir(cid, getEncryptKey(), Process.myUid());
9711                }
9712            }
9713            return status;
9714        }
9715
9716        private void cleanUp() {
9717            if (DEBUG_SD_INSTALL) Slog.i(TAG, "cleanUp");
9718
9719            // Destroy secure container
9720            PackageHelper.destroySdDir(cid);
9721        }
9722
9723        private List<String> getAllCodePaths() {
9724            final File codeFile = new File(getCodePath());
9725            if (codeFile != null && codeFile.exists()) {
9726                try {
9727                    final PackageLite pkg = PackageParser.parsePackageLite(codeFile, 0);
9728                    return pkg.getAllCodePaths();
9729                } catch (PackageParserException e) {
9730                    // Ignored; we tried our best
9731                }
9732            }
9733            return Collections.EMPTY_LIST;
9734        }
9735
9736        void cleanUpResourcesLI() {
9737            // Enumerate all code paths before deleting
9738            cleanUpResourcesLI(getAllCodePaths());
9739        }
9740
9741        private void cleanUpResourcesLI(List<String> allCodePaths) {
9742            cleanUp();
9743            removeDexFiles(allCodePaths, instructionSets);
9744        }
9745
9746
9747
9748        String getPackageName() {
9749            return getAsecPackageName(cid);
9750        }
9751
9752        boolean doPostDeleteLI(boolean delete) {
9753            if (DEBUG_SD_INSTALL) Slog.i(TAG, "doPostDeleteLI() del=" + delete);
9754            final List<String> allCodePaths = getAllCodePaths();
9755            boolean mounted = PackageHelper.isContainerMounted(cid);
9756            if (mounted) {
9757                // Unmount first
9758                if (PackageHelper.unMountSdDir(cid)) {
9759                    mounted = false;
9760                }
9761            }
9762            if (!mounted && delete) {
9763                cleanUpResourcesLI(allCodePaths);
9764            }
9765            return !mounted;
9766        }
9767
9768        @Override
9769        int doPreCopy() {
9770            if (isFwdLocked()) {
9771                if (!PackageHelper.fixSdPermissions(cid,
9772                        getPackageUid(DEFAULT_CONTAINER_PACKAGE, 0), RES_FILE_NAME)) {
9773                    return PackageManager.INSTALL_FAILED_CONTAINER_ERROR;
9774                }
9775            }
9776
9777            return PackageManager.INSTALL_SUCCEEDED;
9778        }
9779
9780        @Override
9781        int doPostCopy(int uid) {
9782            if (isFwdLocked()) {
9783                if (uid < Process.FIRST_APPLICATION_UID
9784                        || !PackageHelper.fixSdPermissions(cid, UserHandle.getSharedAppGid(uid),
9785                                RES_FILE_NAME)) {
9786                    Slog.e(TAG, "Failed to finalize " + cid);
9787                    PackageHelper.destroySdDir(cid);
9788                    return PackageManager.INSTALL_FAILED_CONTAINER_ERROR;
9789                }
9790            }
9791
9792            return PackageManager.INSTALL_SUCCEEDED;
9793        }
9794    }
9795
9796    static String getAsecPackageName(String packageCid) {
9797        int idx = packageCid.lastIndexOf("-");
9798        if (idx == -1) {
9799            return packageCid;
9800        }
9801        return packageCid.substring(0, idx);
9802    }
9803
9804    // Utility method used to create code paths based on package name and available index.
9805    private static String getNextCodePath(String oldCodePath, String prefix, String suffix) {
9806        String idxStr = "";
9807        int idx = 1;
9808        // Fall back to default value of idx=1 if prefix is not
9809        // part of oldCodePath
9810        if (oldCodePath != null) {
9811            String subStr = oldCodePath;
9812            // Drop the suffix right away
9813            if (suffix != null && subStr.endsWith(suffix)) {
9814                subStr = subStr.substring(0, subStr.length() - suffix.length());
9815            }
9816            // If oldCodePath already contains prefix find out the
9817            // ending index to either increment or decrement.
9818            int sidx = subStr.lastIndexOf(prefix);
9819            if (sidx != -1) {
9820                subStr = subStr.substring(sidx + prefix.length());
9821                if (subStr != null) {
9822                    if (subStr.startsWith(INSTALL_PACKAGE_SUFFIX)) {
9823                        subStr = subStr.substring(INSTALL_PACKAGE_SUFFIX.length());
9824                    }
9825                    try {
9826                        idx = Integer.parseInt(subStr);
9827                        if (idx <= 1) {
9828                            idx++;
9829                        } else {
9830                            idx--;
9831                        }
9832                    } catch(NumberFormatException e) {
9833                    }
9834                }
9835            }
9836        }
9837        idxStr = INSTALL_PACKAGE_SUFFIX + Integer.toString(idx);
9838        return prefix + idxStr;
9839    }
9840
9841    private File getNextCodePath(String packageName) {
9842        int suffix = 1;
9843        File result;
9844        do {
9845            result = new File(mAppInstallDir, packageName + "-" + suffix);
9846            suffix++;
9847        } while (result.exists());
9848        return result;
9849    }
9850
9851    // Utility method that returns the relative package path with respect
9852    // to the installation directory. Like say for /data/data/com.test-1.apk
9853    // string com.test-1 is returned.
9854    static String deriveCodePathName(String codePath) {
9855        if (codePath == null) {
9856            return null;
9857        }
9858        final File codeFile = new File(codePath);
9859        final String name = codeFile.getName();
9860        if (codeFile.isDirectory()) {
9861            return name;
9862        } else if (name.endsWith(".apk") || name.endsWith(".tmp")) {
9863            final int lastDot = name.lastIndexOf('.');
9864            return name.substring(0, lastDot);
9865        } else {
9866            Slog.w(TAG, "Odd, " + codePath + " doesn't look like an APK");
9867            return null;
9868        }
9869    }
9870
9871    class PackageInstalledInfo {
9872        String name;
9873        int uid;
9874        // The set of users that originally had this package installed.
9875        int[] origUsers;
9876        // The set of users that now have this package installed.
9877        int[] newUsers;
9878        PackageParser.Package pkg;
9879        int returnCode;
9880        String returnMsg;
9881        PackageRemovedInfo removedInfo;
9882
9883        public void setError(int code, String msg) {
9884            returnCode = code;
9885            returnMsg = msg;
9886            Slog.w(TAG, msg);
9887        }
9888
9889        public void setError(String msg, PackageParserException e) {
9890            returnCode = e.error;
9891            returnMsg = ExceptionUtils.getCompleteMessage(msg, e);
9892            Slog.w(TAG, msg, e);
9893        }
9894
9895        public void setError(String msg, PackageManagerException e) {
9896            returnCode = e.error;
9897            returnMsg = ExceptionUtils.getCompleteMessage(msg, e);
9898            Slog.w(TAG, msg, e);
9899        }
9900
9901        // In some error cases we want to convey more info back to the observer
9902        String origPackage;
9903        String origPermission;
9904    }
9905
9906    /*
9907     * Install a non-existing package.
9908     */
9909    private void installNewPackageLI(PackageParser.Package pkg,
9910            int parseFlags, int scanFlags, UserHandle user,
9911            String installerPackageName, PackageInstalledInfo res) {
9912        // Remember this for later, in case we need to rollback this install
9913        String pkgName = pkg.packageName;
9914
9915        if (DEBUG_INSTALL) Slog.d(TAG, "installNewPackageLI: " + pkg);
9916        boolean dataDirExists = getDataPathForPackage(pkg.packageName, 0).exists();
9917        synchronized(mPackages) {
9918            if (mSettings.mRenamedPackages.containsKey(pkgName)) {
9919                // A package with the same name is already installed, though
9920                // it has been renamed to an older name.  The package we
9921                // are trying to install should be installed as an update to
9922                // the existing one, but that has not been requested, so bail.
9923                res.setError(INSTALL_FAILED_ALREADY_EXISTS, "Attempt to re-install " + pkgName
9924                        + " without first uninstalling package running as "
9925                        + mSettings.mRenamedPackages.get(pkgName));
9926                return;
9927            }
9928            if (mPackages.containsKey(pkgName)) {
9929                // Don't allow installation over an existing package with the same name.
9930                res.setError(INSTALL_FAILED_ALREADY_EXISTS, "Attempt to re-install " + pkgName
9931                        + " without first uninstalling.");
9932                return;
9933            }
9934        }
9935
9936        try {
9937            PackageParser.Package newPackage = scanPackageLI(pkg, parseFlags, scanFlags,
9938                    System.currentTimeMillis(), user);
9939
9940            updateSettingsLI(newPackage, installerPackageName, null, null, res);
9941            // delete the partially installed application. the data directory will have to be
9942            // restored if it was already existing
9943            if (res.returnCode != PackageManager.INSTALL_SUCCEEDED) {
9944                // remove package from internal structures.  Note that we want deletePackageX to
9945                // delete the package data and cache directories that it created in
9946                // scanPackageLocked, unless those directories existed before we even tried to
9947                // install.
9948                deletePackageLI(pkgName, UserHandle.ALL, false, null, null,
9949                        dataDirExists ? PackageManager.DELETE_KEEP_DATA : 0,
9950                                res.removedInfo, true);
9951            }
9952
9953        } catch (PackageManagerException e) {
9954            res.setError("Package couldn't be installed in " + pkg.codePath, e);
9955        }
9956    }
9957
9958    private boolean checkUpgradeKeySetLP(PackageSetting oldPS, PackageParser.Package newPkg) {
9959        // Upgrade keysets are being used.  Determine if new package has a superset of the
9960        // required keys.
9961        long[] upgradeKeySets = oldPS.keySetData.getUpgradeKeySets();
9962        KeySetManagerService ksms = mSettings.mKeySetManagerService;
9963        for (int i = 0; i < upgradeKeySets.length; i++) {
9964            Set<PublicKey> upgradeSet = ksms.getPublicKeysFromKeySetLPr(upgradeKeySets[i]);
9965            if (newPkg.mSigningKeys.containsAll(upgradeSet)) {
9966                return true;
9967            }
9968        }
9969        return false;
9970    }
9971
9972    private void replacePackageLI(PackageParser.Package pkg,
9973            int parseFlags, int scanFlags, UserHandle user,
9974            String installerPackageName, PackageInstalledInfo res) {
9975        PackageParser.Package oldPackage;
9976        String pkgName = pkg.packageName;
9977        int[] allUsers;
9978        boolean[] perUserInstalled;
9979
9980        // First find the old package info and check signatures
9981        synchronized(mPackages) {
9982            oldPackage = mPackages.get(pkgName);
9983            if (DEBUG_INSTALL) Slog.d(TAG, "replacePackageLI: new=" + pkg + ", old=" + oldPackage);
9984            PackageSetting ps = mSettings.mPackages.get(pkgName);
9985            if (ps == null || !ps.keySetData.isUsingUpgradeKeySets() || ps.sharedUser != null) {
9986                // default to original signature matching
9987                if (compareSignatures(oldPackage.mSignatures, pkg.mSignatures)
9988                    != PackageManager.SIGNATURE_MATCH) {
9989                    res.setError(INSTALL_FAILED_UPDATE_INCOMPATIBLE,
9990                            "New package has a different signature: " + pkgName);
9991                    return;
9992                }
9993            } else {
9994                if(!checkUpgradeKeySetLP(ps, pkg)) {
9995                    res.setError(INSTALL_FAILED_UPDATE_INCOMPATIBLE,
9996                            "New package not signed by keys specified by upgrade-keysets: "
9997                            + pkgName);
9998                    return;
9999                }
10000            }
10001
10002            // In case of rollback, remember per-user/profile install state
10003            allUsers = sUserManager.getUserIds();
10004            perUserInstalled = new boolean[allUsers.length];
10005            for (int i = 0; i < allUsers.length; i++) {
10006                perUserInstalled[i] = ps != null ? ps.getInstalled(allUsers[i]) : false;
10007            }
10008        }
10009
10010        boolean sysPkg = (isSystemApp(oldPackage));
10011        if (sysPkg) {
10012            replaceSystemPackageLI(oldPackage, pkg, parseFlags, scanFlags,
10013                    user, allUsers, perUserInstalled, installerPackageName, res);
10014        } else {
10015            replaceNonSystemPackageLI(oldPackage, pkg, parseFlags, scanFlags,
10016                    user, allUsers, perUserInstalled, installerPackageName, res);
10017        }
10018    }
10019
10020    private void replaceNonSystemPackageLI(PackageParser.Package deletedPackage,
10021            PackageParser.Package pkg, int parseFlags, int scanFlags, UserHandle user,
10022            int[] allUsers, boolean[] perUserInstalled,
10023            String installerPackageName, PackageInstalledInfo res) {
10024        String pkgName = deletedPackage.packageName;
10025        boolean deletedPkg = true;
10026        boolean updatedSettings = false;
10027
10028        if (DEBUG_INSTALL) Slog.d(TAG, "replaceNonSystemPackageLI: new=" + pkg + ", old="
10029                + deletedPackage);
10030        long origUpdateTime;
10031        if (pkg.mExtras != null) {
10032            origUpdateTime = ((PackageSetting)pkg.mExtras).lastUpdateTime;
10033        } else {
10034            origUpdateTime = 0;
10035        }
10036
10037        // First delete the existing package while retaining the data directory
10038        if (!deletePackageLI(pkgName, null, true, null, null, PackageManager.DELETE_KEEP_DATA,
10039                res.removedInfo, true)) {
10040            // If the existing package wasn't successfully deleted
10041            res.setError(INSTALL_FAILED_REPLACE_COULDNT_DELETE, "replaceNonSystemPackageLI");
10042            deletedPkg = false;
10043        } else {
10044            // Successfully deleted the old package; proceed with replace.
10045
10046            // If deleted package lived in a container, give users a chance to
10047            // relinquish resources before killing.
10048            if (deletedPackage.isForwardLocked() || isExternal(deletedPackage)) {
10049                if (DEBUG_INSTALL) {
10050                    Slog.i(TAG, "upgrading pkg " + deletedPackage + " is ASEC-hosted -> UNAVAILABLE");
10051                }
10052                final int[] uidArray = new int[] { deletedPackage.applicationInfo.uid };
10053                final ArrayList<String> pkgList = new ArrayList<String>(1);
10054                pkgList.add(deletedPackage.applicationInfo.packageName);
10055                sendResourcesChangedBroadcast(false, true, pkgList, uidArray, null);
10056            }
10057
10058            deleteCodeCacheDirsLI(pkgName);
10059            try {
10060                final PackageParser.Package newPackage = scanPackageLI(pkg, parseFlags,
10061                        scanFlags | SCAN_UPDATE_TIME, System.currentTimeMillis(), user);
10062                updateSettingsLI(newPackage, installerPackageName, allUsers, perUserInstalled, res);
10063                updatedSettings = true;
10064            } catch (PackageManagerException e) {
10065                res.setError("Package couldn't be installed in " + pkg.codePath, e);
10066            }
10067        }
10068
10069        if (res.returnCode != PackageManager.INSTALL_SUCCEEDED) {
10070            // remove package from internal structures.  Note that we want deletePackageX to
10071            // delete the package data and cache directories that it created in
10072            // scanPackageLocked, unless those directories existed before we even tried to
10073            // install.
10074            if(updatedSettings) {
10075                if (DEBUG_INSTALL) Slog.d(TAG, "Install failed, rolling pack: " + pkgName);
10076                deletePackageLI(
10077                        pkgName, null, true, allUsers, perUserInstalled,
10078                        PackageManager.DELETE_KEEP_DATA,
10079                                res.removedInfo, true);
10080            }
10081            // Since we failed to install the new package we need to restore the old
10082            // package that we deleted.
10083            if (deletedPkg) {
10084                if (DEBUG_INSTALL) Slog.d(TAG, "Install failed, reinstalling: " + deletedPackage);
10085                File restoreFile = new File(deletedPackage.codePath);
10086                // Parse old package
10087                boolean oldOnSd = isExternal(deletedPackage);
10088                int oldParseFlags  = mDefParseFlags | PackageParser.PARSE_CHATTY |
10089                        (deletedPackage.isForwardLocked() ? PackageParser.PARSE_FORWARD_LOCK : 0) |
10090                        (oldOnSd ? PackageParser.PARSE_ON_SDCARD : 0);
10091                int oldScanFlags = SCAN_UPDATE_SIGNATURE | SCAN_UPDATE_TIME;
10092                try {
10093                    scanPackageLI(restoreFile, oldParseFlags, oldScanFlags, origUpdateTime, null);
10094                } catch (PackageManagerException e) {
10095                    Slog.e(TAG, "Failed to restore package : " + pkgName + " after failed upgrade: "
10096                            + e.getMessage());
10097                    return;
10098                }
10099                // Restore of old package succeeded. Update permissions.
10100                // writer
10101                synchronized (mPackages) {
10102                    updatePermissionsLPw(deletedPackage.packageName, deletedPackage,
10103                            UPDATE_PERMISSIONS_ALL);
10104                    // can downgrade to reader
10105                    mSettings.writeLPr();
10106                }
10107                Slog.i(TAG, "Successfully restored package : " + pkgName + " after failed upgrade");
10108            }
10109        }
10110    }
10111
10112    private void replaceSystemPackageLI(PackageParser.Package deletedPackage,
10113            PackageParser.Package pkg, int parseFlags, int scanFlags, UserHandle user,
10114            int[] allUsers, boolean[] perUserInstalled,
10115            String installerPackageName, PackageInstalledInfo res) {
10116        if (DEBUG_INSTALL) Slog.d(TAG, "replaceSystemPackageLI: new=" + pkg
10117                + ", old=" + deletedPackage);
10118        boolean disabledSystem = false;
10119        boolean updatedSettings = false;
10120        parseFlags |= PackageParser.PARSE_IS_SYSTEM;
10121        if ((deletedPackage.applicationInfo.privateFlags&ApplicationInfo.PRIVATE_FLAG_PRIVILEGED)
10122                != 0) {
10123            parseFlags |= PackageParser.PARSE_IS_PRIVILEGED;
10124        }
10125        String packageName = deletedPackage.packageName;
10126        if (packageName == null) {
10127            res.setError(INSTALL_FAILED_REPLACE_COULDNT_DELETE,
10128                    "Attempt to delete null packageName.");
10129            return;
10130        }
10131        PackageParser.Package oldPkg;
10132        PackageSetting oldPkgSetting;
10133        // reader
10134        synchronized (mPackages) {
10135            oldPkg = mPackages.get(packageName);
10136            oldPkgSetting = mSettings.mPackages.get(packageName);
10137            if((oldPkg == null) || (oldPkg.applicationInfo == null) ||
10138                    (oldPkgSetting == null)) {
10139                res.setError(INSTALL_FAILED_REPLACE_COULDNT_DELETE,
10140                        "Couldn't find package:" + packageName + " information");
10141                return;
10142            }
10143        }
10144
10145        killApplication(packageName, oldPkg.applicationInfo.uid, "replace sys pkg");
10146
10147        res.removedInfo.uid = oldPkg.applicationInfo.uid;
10148        res.removedInfo.removedPackage = packageName;
10149        // Remove existing system package
10150        removePackageLI(oldPkgSetting, true);
10151        // writer
10152        synchronized (mPackages) {
10153            disabledSystem = mSettings.disableSystemPackageLPw(packageName);
10154            if (!disabledSystem && deletedPackage != null) {
10155                // We didn't need to disable the .apk as a current system package,
10156                // which means we are replacing another update that is already
10157                // installed.  We need to make sure to delete the older one's .apk.
10158                res.removedInfo.args = createInstallArgsForExisting(0,
10159                        deletedPackage.applicationInfo.getCodePath(),
10160                        deletedPackage.applicationInfo.getResourcePath(),
10161                        deletedPackage.applicationInfo.nativeLibraryRootDir,
10162                        getAppDexInstructionSets(deletedPackage.applicationInfo));
10163            } else {
10164                res.removedInfo.args = null;
10165            }
10166        }
10167
10168        // Successfully disabled the old package. Now proceed with re-installation
10169        deleteCodeCacheDirsLI(packageName);
10170
10171        res.returnCode = PackageManager.INSTALL_SUCCEEDED;
10172        pkg.applicationInfo.flags |= ApplicationInfo.FLAG_UPDATED_SYSTEM_APP;
10173
10174        PackageParser.Package newPackage = null;
10175        try {
10176            newPackage = scanPackageLI(pkg, parseFlags, scanFlags, 0, user);
10177            if (newPackage.mExtras != null) {
10178                final PackageSetting newPkgSetting = (PackageSetting) newPackage.mExtras;
10179                newPkgSetting.firstInstallTime = oldPkgSetting.firstInstallTime;
10180                newPkgSetting.lastUpdateTime = System.currentTimeMillis();
10181
10182                // is the update attempting to change shared user? that isn't going to work...
10183                if (oldPkgSetting.sharedUser != newPkgSetting.sharedUser) {
10184                    res.setError(INSTALL_FAILED_SHARED_USER_INCOMPATIBLE,
10185                            "Forbidding shared user change from " + oldPkgSetting.sharedUser
10186                            + " to " + newPkgSetting.sharedUser);
10187                    updatedSettings = true;
10188                }
10189            }
10190
10191            if (res.returnCode == PackageManager.INSTALL_SUCCEEDED) {
10192                updateSettingsLI(newPackage, installerPackageName, allUsers, perUserInstalled, res);
10193                updatedSettings = true;
10194            }
10195
10196        } catch (PackageManagerException e) {
10197            res.setError("Package couldn't be installed in " + pkg.codePath, e);
10198        }
10199
10200        if (res.returnCode != PackageManager.INSTALL_SUCCEEDED) {
10201            // Re installation failed. Restore old information
10202            // Remove new pkg information
10203            if (newPackage != null) {
10204                removeInstalledPackageLI(newPackage, true);
10205            }
10206            // Add back the old system package
10207            try {
10208                scanPackageLI(oldPkg, parseFlags, SCAN_UPDATE_SIGNATURE, 0, user);
10209            } catch (PackageManagerException e) {
10210                Slog.e(TAG, "Failed to restore original package: " + e.getMessage());
10211            }
10212            // Restore the old system information in Settings
10213            synchronized (mPackages) {
10214                if (disabledSystem) {
10215                    mSettings.enableSystemPackageLPw(packageName);
10216                }
10217                if (updatedSettings) {
10218                    mSettings.setInstallerPackageName(packageName,
10219                            oldPkgSetting.installerPackageName);
10220                }
10221                mSettings.writeLPr();
10222            }
10223        }
10224    }
10225
10226    private void updateSettingsLI(PackageParser.Package newPackage, String installerPackageName,
10227            int[] allUsers, boolean[] perUserInstalled,
10228            PackageInstalledInfo res) {
10229        String pkgName = newPackage.packageName;
10230        synchronized (mPackages) {
10231            //write settings. the installStatus will be incomplete at this stage.
10232            //note that the new package setting would have already been
10233            //added to mPackages. It hasn't been persisted yet.
10234            mSettings.setInstallStatus(pkgName, PackageSettingBase.PKG_INSTALL_INCOMPLETE);
10235            mSettings.writeLPr();
10236        }
10237
10238        if (DEBUG_INSTALL) Slog.d(TAG, "New package installed in " + newPackage.codePath);
10239
10240        synchronized (mPackages) {
10241            updatePermissionsLPw(newPackage.packageName, newPackage,
10242                    UPDATE_PERMISSIONS_REPLACE_PKG | (newPackage.permissions.size() > 0
10243                            ? UPDATE_PERMISSIONS_ALL : 0));
10244            // For system-bundled packages, we assume that installing an upgraded version
10245            // of the package implies that the user actually wants to run that new code,
10246            // so we enable the package.
10247            if (isSystemApp(newPackage)) {
10248                // NB: implicit assumption that system package upgrades apply to all users
10249                if (DEBUG_INSTALL) {
10250                    Slog.d(TAG, "Implicitly enabling system package on upgrade: " + pkgName);
10251                }
10252                PackageSetting ps = mSettings.mPackages.get(pkgName);
10253                if (ps != null) {
10254                    if (res.origUsers != null) {
10255                        for (int userHandle : res.origUsers) {
10256                            ps.setEnabled(COMPONENT_ENABLED_STATE_DEFAULT,
10257                                    userHandle, installerPackageName);
10258                        }
10259                    }
10260                    // Also convey the prior install/uninstall state
10261                    if (allUsers != null && perUserInstalled != null) {
10262                        for (int i = 0; i < allUsers.length; i++) {
10263                            if (DEBUG_INSTALL) {
10264                                Slog.d(TAG, "    user " + allUsers[i]
10265                                        + " => " + perUserInstalled[i]);
10266                            }
10267                            ps.setInstalled(perUserInstalled[i], allUsers[i]);
10268                        }
10269                        // these install state changes will be persisted in the
10270                        // upcoming call to mSettings.writeLPr().
10271                    }
10272                }
10273            }
10274            res.name = pkgName;
10275            res.uid = newPackage.applicationInfo.uid;
10276            res.pkg = newPackage;
10277            mSettings.setInstallStatus(pkgName, PackageSettingBase.PKG_INSTALL_COMPLETE);
10278            mSettings.setInstallerPackageName(pkgName, installerPackageName);
10279            res.returnCode = PackageManager.INSTALL_SUCCEEDED;
10280            //to update install status
10281            mSettings.writeLPr();
10282        }
10283    }
10284
10285    private void installPackageLI(InstallArgs args, PackageInstalledInfo res) {
10286        final int installFlags = args.installFlags;
10287        String installerPackageName = args.installerPackageName;
10288        File tmpPackageFile = new File(args.getCodePath());
10289        boolean forwardLocked = ((installFlags & PackageManager.INSTALL_FORWARD_LOCK) != 0);
10290        boolean onSd = ((installFlags & PackageManager.INSTALL_EXTERNAL) != 0);
10291        boolean replace = false;
10292        final int scanFlags = SCAN_NEW_INSTALL | SCAN_FORCE_DEX | SCAN_UPDATE_SIGNATURE;
10293        // Result object to be returned
10294        res.returnCode = PackageManager.INSTALL_SUCCEEDED;
10295
10296        if (DEBUG_INSTALL) Slog.d(TAG, "installPackageLI: path=" + tmpPackageFile);
10297        // Retrieve PackageSettings and parse package
10298        final int parseFlags = mDefParseFlags | PackageParser.PARSE_CHATTY
10299                | (forwardLocked ? PackageParser.PARSE_FORWARD_LOCK : 0)
10300                | (onSd ? PackageParser.PARSE_ON_SDCARD : 0);
10301        PackageParser pp = new PackageParser();
10302        pp.setSeparateProcesses(mSeparateProcesses);
10303        pp.setDisplayMetrics(mMetrics);
10304
10305        final PackageParser.Package pkg;
10306        try {
10307            pkg = pp.parsePackage(tmpPackageFile, parseFlags);
10308        } catch (PackageParserException e) {
10309            res.setError("Failed parse during installPackageLI", e);
10310            return;
10311        }
10312
10313        // Mark that we have an install time CPU ABI override.
10314        pkg.cpuAbiOverride = args.abiOverride;
10315
10316        String pkgName = res.name = pkg.packageName;
10317        if ((pkg.applicationInfo.flags&ApplicationInfo.FLAG_TEST_ONLY) != 0) {
10318            if ((installFlags & PackageManager.INSTALL_ALLOW_TEST) == 0) {
10319                res.setError(INSTALL_FAILED_TEST_ONLY, "installPackageLI");
10320                return;
10321            }
10322        }
10323
10324        try {
10325            pp.collectCertificates(pkg, parseFlags);
10326            pp.collectManifestDigest(pkg);
10327        } catch (PackageParserException e) {
10328            res.setError("Failed collect during installPackageLI", e);
10329            return;
10330        }
10331
10332        /* If the installer passed in a manifest digest, compare it now. */
10333        if (args.manifestDigest != null) {
10334            if (DEBUG_INSTALL) {
10335                final String parsedManifest = pkg.manifestDigest == null ? "null"
10336                        : pkg.manifestDigest.toString();
10337                Slog.d(TAG, "Comparing manifests: " + args.manifestDigest.toString() + " vs. "
10338                        + parsedManifest);
10339            }
10340
10341            if (!args.manifestDigest.equals(pkg.manifestDigest)) {
10342                res.setError(INSTALL_FAILED_PACKAGE_CHANGED, "Manifest digest changed");
10343                return;
10344            }
10345        } else if (DEBUG_INSTALL) {
10346            final String parsedManifest = pkg.manifestDigest == null
10347                    ? "null" : pkg.manifestDigest.toString();
10348            Slog.d(TAG, "manifestDigest was not present, but parser got: " + parsedManifest);
10349        }
10350
10351        // Get rid of all references to package scan path via parser.
10352        pp = null;
10353        String oldCodePath = null;
10354        boolean systemApp = false;
10355        synchronized (mPackages) {
10356            // Check if installing already existing package
10357            if ((installFlags & PackageManager.INSTALL_REPLACE_EXISTING) != 0) {
10358                String oldName = mSettings.mRenamedPackages.get(pkgName);
10359                if (pkg.mOriginalPackages != null
10360                        && pkg.mOriginalPackages.contains(oldName)
10361                        && mPackages.containsKey(oldName)) {
10362                    // This package is derived from an original package,
10363                    // and this device has been updating from that original
10364                    // name.  We must continue using the original name, so
10365                    // rename the new package here.
10366                    pkg.setPackageName(oldName);
10367                    pkgName = pkg.packageName;
10368                    replace = true;
10369                    if (DEBUG_INSTALL) Slog.d(TAG, "Replacing existing renamed package: oldName="
10370                            + oldName + " pkgName=" + pkgName);
10371                } else if (mPackages.containsKey(pkgName)) {
10372                    // This package, under its official name, already exists
10373                    // on the device; we should replace it.
10374                    replace = true;
10375                    if (DEBUG_INSTALL) Slog.d(TAG, "Replace existing pacakge: " + pkgName);
10376                }
10377            }
10378
10379            PackageSetting ps = mSettings.mPackages.get(pkgName);
10380            if (ps != null) {
10381                if (DEBUG_INSTALL) Slog.d(TAG, "Existing package: " + ps);
10382
10383                // Quick sanity check that we're signed correctly if updating;
10384                // we'll check this again later when scanning, but we want to
10385                // bail early here before tripping over redefined permissions.
10386                if (!ps.keySetData.isUsingUpgradeKeySets() || ps.sharedUser != null) {
10387                    try {
10388                        verifySignaturesLP(ps, pkg);
10389                    } catch (PackageManagerException e) {
10390                        res.setError(e.error, e.getMessage());
10391                        return;
10392                    }
10393                } else {
10394                    if (!checkUpgradeKeySetLP(ps, pkg)) {
10395                        res.setError(INSTALL_FAILED_UPDATE_INCOMPATIBLE, "Package "
10396                                + pkg.packageName + " upgrade keys do not match the "
10397                                + "previously installed version");
10398                        return;
10399                    }
10400                }
10401
10402                oldCodePath = mSettings.mPackages.get(pkgName).codePathString;
10403                if (ps.pkg != null && ps.pkg.applicationInfo != null) {
10404                    systemApp = (ps.pkg.applicationInfo.flags &
10405                            ApplicationInfo.FLAG_SYSTEM) != 0;
10406                }
10407                res.origUsers = ps.queryInstalledUsers(sUserManager.getUserIds(), true);
10408            }
10409
10410            // Check whether the newly-scanned package wants to define an already-defined perm
10411            int N = pkg.permissions.size();
10412            for (int i = N-1; i >= 0; i--) {
10413                PackageParser.Permission perm = pkg.permissions.get(i);
10414                BasePermission bp = mSettings.mPermissions.get(perm.info.name);
10415                if (bp != null) {
10416                    // If the defining package is signed with our cert, it's okay.  This
10417                    // also includes the "updating the same package" case, of course.
10418                    // "updating same package" could also involve key-rotation.
10419                    final boolean sigsOk;
10420                    if (!bp.sourcePackage.equals(pkg.packageName)
10421                            || !(bp.packageSetting instanceof PackageSetting)
10422                            || !bp.packageSetting.keySetData.isUsingUpgradeKeySets()
10423                            || ((PackageSetting) bp.packageSetting).sharedUser != null) {
10424                        sigsOk = compareSignatures(bp.packageSetting.signatures.mSignatures,
10425                                pkg.mSignatures) == PackageManager.SIGNATURE_MATCH;
10426                    } else {
10427                        sigsOk = checkUpgradeKeySetLP((PackageSetting) bp.packageSetting, pkg);
10428                    }
10429                    if (!sigsOk) {
10430                        // If the owning package is the system itself, we log but allow
10431                        // install to proceed; we fail the install on all other permission
10432                        // redefinitions.
10433                        if (!bp.sourcePackage.equals("android")) {
10434                            res.setError(INSTALL_FAILED_DUPLICATE_PERMISSION, "Package "
10435                                    + pkg.packageName + " attempting to redeclare permission "
10436                                    + perm.info.name + " already owned by " + bp.sourcePackage);
10437                            res.origPermission = perm.info.name;
10438                            res.origPackage = bp.sourcePackage;
10439                            return;
10440                        } else {
10441                            Slog.w(TAG, "Package " + pkg.packageName
10442                                    + " attempting to redeclare system permission "
10443                                    + perm.info.name + "; ignoring new declaration");
10444                            pkg.permissions.remove(i);
10445                        }
10446                    }
10447                }
10448            }
10449
10450        }
10451
10452        if (systemApp && onSd) {
10453            // Disable updates to system apps on sdcard
10454            res.setError(INSTALL_FAILED_INVALID_INSTALL_LOCATION,
10455                    "Cannot install updates to system apps on sdcard");
10456            return;
10457        }
10458
10459        // Run dexopt before old package gets removed, to minimize time when app is not available
10460        int result = mPackageDexOptimizer
10461                .performDexOpt(pkg, null /* instruction sets */, true /* forceDex */,
10462                        false /* defer */, false /* inclDependencies */);
10463        if (result == PackageDexOptimizer.DEX_OPT_FAILED) {
10464            res.setError(INSTALL_FAILED_DEXOPT, "Dexopt failed for " + pkg.codePath);
10465            return;
10466        }
10467
10468        if (!args.doRename(res.returnCode, pkg, oldCodePath)) {
10469            res.setError(INSTALL_FAILED_INSUFFICIENT_STORAGE, "Failed rename");
10470            return;
10471        }
10472
10473        // Call with SCAN_NO_DEX, since dexopt has already been made
10474        if (replace) {
10475            replacePackageLI(pkg, parseFlags, scanFlags | SCAN_REPLACING | SCAN_NO_DEX, args.user,
10476                    installerPackageName, res);
10477        } else {
10478            installNewPackageLI(pkg, parseFlags, scanFlags | SCAN_DELETE_DATA_ON_FAILURES
10479                            | SCAN_NO_DEX, args.user, installerPackageName, res);
10480        }
10481        synchronized (mPackages) {
10482            final PackageSetting ps = mSettings.mPackages.get(pkgName);
10483            if (ps != null) {
10484                res.newUsers = ps.queryInstalledUsers(sUserManager.getUserIds(), true);
10485            }
10486        }
10487    }
10488
10489    private static boolean isMultiArch(PackageSetting ps) {
10490        return (ps.pkgFlags & ApplicationInfo.FLAG_MULTIARCH) != 0;
10491    }
10492
10493    private static boolean isMultiArch(ApplicationInfo info) {
10494        return (info.flags & ApplicationInfo.FLAG_MULTIARCH) != 0;
10495    }
10496
10497    private static boolean isExternal(PackageParser.Package pkg) {
10498        return (pkg.applicationInfo.flags & ApplicationInfo.FLAG_EXTERNAL_STORAGE) != 0;
10499    }
10500
10501    private static boolean isExternal(PackageSetting ps) {
10502        return (ps.pkgFlags & ApplicationInfo.FLAG_EXTERNAL_STORAGE) != 0;
10503    }
10504
10505    private static boolean isExternal(ApplicationInfo info) {
10506        return (info.flags & ApplicationInfo.FLAG_EXTERNAL_STORAGE) != 0;
10507    }
10508
10509    private static boolean isSystemApp(PackageParser.Package pkg) {
10510        return (pkg.applicationInfo.flags & ApplicationInfo.FLAG_SYSTEM) != 0;
10511    }
10512
10513    private static boolean isPrivilegedApp(PackageParser.Package pkg) {
10514        return (pkg.applicationInfo.privateFlags & ApplicationInfo.PRIVATE_FLAG_PRIVILEGED) != 0;
10515    }
10516
10517    private static boolean isSystemApp(PackageSetting ps) {
10518        return (ps.pkgFlags & ApplicationInfo.FLAG_SYSTEM) != 0;
10519    }
10520
10521    private static boolean isUpdatedSystemApp(PackageSetting ps) {
10522        return (ps.pkgFlags & ApplicationInfo.FLAG_UPDATED_SYSTEM_APP) != 0;
10523    }
10524
10525    private int packageFlagsToInstallFlags(PackageSetting ps) {
10526        int installFlags = 0;
10527        if (isExternal(ps)) {
10528            installFlags |= PackageManager.INSTALL_EXTERNAL;
10529        }
10530        if (ps.isForwardLocked()) {
10531            installFlags |= PackageManager.INSTALL_FORWARD_LOCK;
10532        }
10533        return installFlags;
10534    }
10535
10536    private void deleteTempPackageFiles() {
10537        final FilenameFilter filter = new FilenameFilter() {
10538            public boolean accept(File dir, String name) {
10539                return name.startsWith("vmdl") && name.endsWith(".tmp");
10540            }
10541        };
10542        for (File file : mDrmAppPrivateInstallDir.listFiles(filter)) {
10543            file.delete();
10544        }
10545    }
10546
10547    @Override
10548    public void deletePackageAsUser(String packageName, IPackageDeleteObserver observer, int userId,
10549            int flags) {
10550        deletePackage(packageName, new LegacyPackageDeleteObserver(observer).getBinder(), userId,
10551                flags);
10552    }
10553
10554    @Override
10555    public void deletePackage(final String packageName,
10556            final IPackageDeleteObserver2 observer, final int userId, final int flags) {
10557        mContext.enforceCallingOrSelfPermission(
10558                android.Manifest.permission.DELETE_PACKAGES, null);
10559        final int uid = Binder.getCallingUid();
10560        if (UserHandle.getUserId(uid) != userId) {
10561            mContext.enforceCallingPermission(
10562                    android.Manifest.permission.INTERACT_ACROSS_USERS_FULL,
10563                    "deletePackage for user " + userId);
10564        }
10565        if (isUserRestricted(userId, UserManager.DISALLOW_UNINSTALL_APPS)) {
10566            try {
10567                observer.onPackageDeleted(packageName,
10568                        PackageManager.DELETE_FAILED_USER_RESTRICTED, null);
10569            } catch (RemoteException re) {
10570            }
10571            return;
10572        }
10573
10574        boolean uninstallBlocked = false;
10575        if ((flags & PackageManager.DELETE_ALL_USERS) != 0) {
10576            int[] users = sUserManager.getUserIds();
10577            for (int i = 0; i < users.length; ++i) {
10578                if (getBlockUninstallForUser(packageName, users[i])) {
10579                    uninstallBlocked = true;
10580                    break;
10581                }
10582            }
10583        } else {
10584            uninstallBlocked = getBlockUninstallForUser(packageName, userId);
10585        }
10586        if (uninstallBlocked) {
10587            try {
10588                observer.onPackageDeleted(packageName, PackageManager.DELETE_FAILED_OWNER_BLOCKED,
10589                        null);
10590            } catch (RemoteException re) {
10591            }
10592            return;
10593        }
10594
10595        if (DEBUG_REMOVE) {
10596            Slog.d(TAG, "deletePackageAsUser: pkg=" + packageName + " user=" + userId);
10597        }
10598        // Queue up an async operation since the package deletion may take a little while.
10599        mHandler.post(new Runnable() {
10600            public void run() {
10601                mHandler.removeCallbacks(this);
10602                final int returnCode = deletePackageX(packageName, userId, flags);
10603                if (observer != null) {
10604                    try {
10605                        observer.onPackageDeleted(packageName, returnCode, null);
10606                    } catch (RemoteException e) {
10607                        Log.i(TAG, "Observer no longer exists.");
10608                    } //end catch
10609                } //end if
10610            } //end run
10611        });
10612    }
10613
10614    private boolean isPackageDeviceAdmin(String packageName, int userId) {
10615        IDevicePolicyManager dpm = IDevicePolicyManager.Stub.asInterface(
10616                ServiceManager.getService(Context.DEVICE_POLICY_SERVICE));
10617        try {
10618            if (dpm != null) {
10619                if (dpm.isDeviceOwner(packageName)) {
10620                    return true;
10621                }
10622                int[] users;
10623                if (userId == UserHandle.USER_ALL) {
10624                    users = sUserManager.getUserIds();
10625                } else {
10626                    users = new int[]{userId};
10627                }
10628                for (int i = 0; i < users.length; ++i) {
10629                    if (dpm.packageHasActiveAdmins(packageName, users[i])) {
10630                        return true;
10631                    }
10632                }
10633            }
10634        } catch (RemoteException e) {
10635        }
10636        return false;
10637    }
10638
10639    /**
10640     *  This method is an internal method that could be get invoked either
10641     *  to delete an installed package or to clean up a failed installation.
10642     *  After deleting an installed package, a broadcast is sent to notify any
10643     *  listeners that the package has been installed. For cleaning up a failed
10644     *  installation, the broadcast is not necessary since the package's
10645     *  installation wouldn't have sent the initial broadcast either
10646     *  The key steps in deleting a package are
10647     *  deleting the package information in internal structures like mPackages,
10648     *  deleting the packages base directories through installd
10649     *  updating mSettings to reflect current status
10650     *  persisting settings for later use
10651     *  sending a broadcast if necessary
10652     */
10653    private int deletePackageX(String packageName, int userId, int flags) {
10654        final PackageRemovedInfo info = new PackageRemovedInfo();
10655        final boolean res;
10656
10657        final UserHandle removeForUser = (flags & PackageManager.DELETE_ALL_USERS) != 0
10658                ? UserHandle.ALL : new UserHandle(userId);
10659
10660        if (isPackageDeviceAdmin(packageName, removeForUser.getIdentifier())) {
10661            Slog.w(TAG, "Not removing package " + packageName + ": has active device admin");
10662            return PackageManager.DELETE_FAILED_DEVICE_POLICY_MANAGER;
10663        }
10664
10665        boolean removedForAllUsers = false;
10666        boolean systemUpdate = false;
10667
10668        // for the uninstall-updates case and restricted profiles, remember the per-
10669        // userhandle installed state
10670        int[] allUsers;
10671        boolean[] perUserInstalled;
10672        synchronized (mPackages) {
10673            PackageSetting ps = mSettings.mPackages.get(packageName);
10674            allUsers = sUserManager.getUserIds();
10675            perUserInstalled = new boolean[allUsers.length];
10676            for (int i = 0; i < allUsers.length; i++) {
10677                perUserInstalled[i] = ps != null ? ps.getInstalled(allUsers[i]) : false;
10678            }
10679        }
10680
10681        synchronized (mInstallLock) {
10682            if (DEBUG_REMOVE) Slog.d(TAG, "deletePackageX: pkg=" + packageName + " user=" + userId);
10683            res = deletePackageLI(packageName, removeForUser,
10684                    true, allUsers, perUserInstalled,
10685                    flags | REMOVE_CHATTY, info, true);
10686            systemUpdate = info.isRemovedPackageSystemUpdate;
10687            if (res && !systemUpdate && mPackages.get(packageName) == null) {
10688                removedForAllUsers = true;
10689            }
10690            if (DEBUG_REMOVE) Slog.d(TAG, "delete res: systemUpdate=" + systemUpdate
10691                    + " removedForAllUsers=" + removedForAllUsers);
10692        }
10693
10694        if (res) {
10695            info.sendBroadcast(true, systemUpdate, removedForAllUsers);
10696
10697            // If the removed package was a system update, the old system package
10698            // was re-enabled; we need to broadcast this information
10699            if (systemUpdate) {
10700                Bundle extras = new Bundle(1);
10701                extras.putInt(Intent.EXTRA_UID, info.removedAppId >= 0
10702                        ? info.removedAppId : info.uid);
10703                extras.putBoolean(Intent.EXTRA_REPLACING, true);
10704
10705                sendPackageBroadcast(Intent.ACTION_PACKAGE_ADDED, packageName,
10706                        extras, null, null, null);
10707                sendPackageBroadcast(Intent.ACTION_PACKAGE_REPLACED, packageName,
10708                        extras, null, null, null);
10709                sendPackageBroadcast(Intent.ACTION_MY_PACKAGE_REPLACED, null,
10710                        null, packageName, null, null);
10711            }
10712        }
10713        // Force a gc here.
10714        Runtime.getRuntime().gc();
10715        // Delete the resources here after sending the broadcast to let
10716        // other processes clean up before deleting resources.
10717        if (info.args != null) {
10718            synchronized (mInstallLock) {
10719                info.args.doPostDeleteLI(true);
10720            }
10721        }
10722
10723        return res ? PackageManager.DELETE_SUCCEEDED : PackageManager.DELETE_FAILED_INTERNAL_ERROR;
10724    }
10725
10726    static class PackageRemovedInfo {
10727        String removedPackage;
10728        int uid = -1;
10729        int removedAppId = -1;
10730        int[] removedUsers = null;
10731        boolean isRemovedPackageSystemUpdate = false;
10732        // Clean up resources deleted packages.
10733        InstallArgs args = null;
10734
10735        void sendBroadcast(boolean fullRemove, boolean replacing, boolean removedForAllUsers) {
10736            Bundle extras = new Bundle(1);
10737            extras.putInt(Intent.EXTRA_UID, removedAppId >= 0 ? removedAppId : uid);
10738            extras.putBoolean(Intent.EXTRA_DATA_REMOVED, fullRemove);
10739            if (replacing) {
10740                extras.putBoolean(Intent.EXTRA_REPLACING, true);
10741            }
10742            extras.putBoolean(Intent.EXTRA_REMOVED_FOR_ALL_USERS, removedForAllUsers);
10743            if (removedPackage != null) {
10744                sendPackageBroadcast(Intent.ACTION_PACKAGE_REMOVED, removedPackage,
10745                        extras, null, null, removedUsers);
10746                if (fullRemove && !replacing) {
10747                    sendPackageBroadcast(Intent.ACTION_PACKAGE_FULLY_REMOVED, removedPackage,
10748                            extras, null, null, removedUsers);
10749                }
10750            }
10751            if (removedAppId >= 0) {
10752                sendPackageBroadcast(Intent.ACTION_UID_REMOVED, null, extras, null, null,
10753                        removedUsers);
10754            }
10755        }
10756    }
10757
10758    /*
10759     * This method deletes the package from internal data structures. If the DONT_DELETE_DATA
10760     * flag is not set, the data directory is removed as well.
10761     * make sure this flag is set for partially installed apps. If not its meaningless to
10762     * delete a partially installed application.
10763     */
10764    private void removePackageDataLI(PackageSetting ps,
10765            int[] allUserHandles, boolean[] perUserInstalled,
10766            PackageRemovedInfo outInfo, int flags, boolean writeSettings) {
10767        String packageName = ps.name;
10768        if (DEBUG_REMOVE) Slog.d(TAG, "removePackageDataLI: " + ps);
10769        removePackageLI(ps, (flags&REMOVE_CHATTY) != 0);
10770        // Retrieve object to delete permissions for shared user later on
10771        final PackageSetting deletedPs;
10772        // reader
10773        synchronized (mPackages) {
10774            deletedPs = mSettings.mPackages.get(packageName);
10775            if (outInfo != null) {
10776                outInfo.removedPackage = packageName;
10777                outInfo.removedUsers = deletedPs != null
10778                        ? deletedPs.queryInstalledUsers(sUserManager.getUserIds(), true)
10779                        : null;
10780            }
10781        }
10782        if ((flags&PackageManager.DELETE_KEEP_DATA) == 0) {
10783            removeDataDirsLI(packageName);
10784            schedulePackageCleaning(packageName, UserHandle.USER_ALL, true);
10785        }
10786        // writer
10787        synchronized (mPackages) {
10788            if (deletedPs != null) {
10789                if ((flags&PackageManager.DELETE_KEEP_DATA) == 0) {
10790                    if (outInfo != null) {
10791                        mSettings.mKeySetManagerService.removeAppKeySetDataLPw(packageName);
10792                        outInfo.removedAppId = mSettings.removePackageLPw(packageName);
10793                    }
10794                    if (deletedPs != null) {
10795                        updatePermissionsLPw(deletedPs.name, null, 0);
10796                        if (deletedPs.sharedUser != null) {
10797                            // remove permissions associated with package
10798                            mSettings.updateSharedUserPermsLPw(deletedPs, mGlobalGids);
10799                        }
10800                    }
10801                    clearPackagePreferredActivitiesLPw(deletedPs.name, UserHandle.USER_ALL);
10802                }
10803                // make sure to preserve per-user disabled state if this removal was just
10804                // a downgrade of a system app to the factory package
10805                if (allUserHandles != null && perUserInstalled != null) {
10806                    if (DEBUG_REMOVE) {
10807                        Slog.d(TAG, "Propagating install state across downgrade");
10808                    }
10809                    for (int i = 0; i < allUserHandles.length; i++) {
10810                        if (DEBUG_REMOVE) {
10811                            Slog.d(TAG, "    user " + allUserHandles[i]
10812                                    + " => " + perUserInstalled[i]);
10813                        }
10814                        ps.setInstalled(perUserInstalled[i], allUserHandles[i]);
10815                    }
10816                }
10817            }
10818            // can downgrade to reader
10819            if (writeSettings) {
10820                // Save settings now
10821                mSettings.writeLPr();
10822            }
10823        }
10824        if (outInfo != null) {
10825            // A user ID was deleted here. Go through all users and remove it
10826            // from KeyStore.
10827            removeKeystoreDataIfNeeded(UserHandle.USER_ALL, outInfo.removedAppId);
10828        }
10829    }
10830
10831    static boolean locationIsPrivileged(File path) {
10832        try {
10833            final String privilegedAppDir = new File(Environment.getRootDirectory(), "priv-app")
10834                    .getCanonicalPath();
10835            return path.getCanonicalPath().startsWith(privilegedAppDir);
10836        } catch (IOException e) {
10837            Slog.e(TAG, "Unable to access code path " + path);
10838        }
10839        return false;
10840    }
10841
10842    /*
10843     * Tries to delete system package.
10844     */
10845    private boolean deleteSystemPackageLI(PackageSetting newPs,
10846            int[] allUserHandles, boolean[] perUserInstalled,
10847            int flags, PackageRemovedInfo outInfo, boolean writeSettings) {
10848        final boolean applyUserRestrictions
10849                = (allUserHandles != null) && (perUserInstalled != null);
10850        PackageSetting disabledPs = null;
10851        // Confirm if the system package has been updated
10852        // An updated system app can be deleted. This will also have to restore
10853        // the system pkg from system partition
10854        // reader
10855        synchronized (mPackages) {
10856            disabledPs = mSettings.getDisabledSystemPkgLPr(newPs.name);
10857        }
10858        if (DEBUG_REMOVE) Slog.d(TAG, "deleteSystemPackageLI: newPs=" + newPs
10859                + " disabledPs=" + disabledPs);
10860        if (disabledPs == null) {
10861            Slog.w(TAG, "Attempt to delete unknown system package "+ newPs.name);
10862            return false;
10863        } else if (DEBUG_REMOVE) {
10864            Slog.d(TAG, "Deleting system pkg from data partition");
10865        }
10866        if (DEBUG_REMOVE) {
10867            if (applyUserRestrictions) {
10868                Slog.d(TAG, "Remembering install states:");
10869                for (int i = 0; i < allUserHandles.length; i++) {
10870                    Slog.d(TAG, "   u=" + allUserHandles[i] + " inst=" + perUserInstalled[i]);
10871                }
10872            }
10873        }
10874        // Delete the updated package
10875        outInfo.isRemovedPackageSystemUpdate = true;
10876        if (disabledPs.versionCode < newPs.versionCode) {
10877            // Delete data for downgrades
10878            flags &= ~PackageManager.DELETE_KEEP_DATA;
10879        } else {
10880            // Preserve data by setting flag
10881            flags |= PackageManager.DELETE_KEEP_DATA;
10882        }
10883        boolean ret = deleteInstalledPackageLI(newPs, true, flags,
10884                allUserHandles, perUserInstalled, outInfo, writeSettings);
10885        if (!ret) {
10886            return false;
10887        }
10888        // writer
10889        synchronized (mPackages) {
10890            // Reinstate the old system package
10891            mSettings.enableSystemPackageLPw(newPs.name);
10892            // Remove any native libraries from the upgraded package.
10893            NativeLibraryHelper.removeNativeBinariesLI(newPs.legacyNativeLibraryPathString);
10894        }
10895        // Install the system package
10896        if (DEBUG_REMOVE) Slog.d(TAG, "Re-installing system package: " + disabledPs);
10897        int parseFlags = PackageParser.PARSE_MUST_BE_APK | PackageParser.PARSE_IS_SYSTEM;
10898        if (locationIsPrivileged(disabledPs.codePath)) {
10899            parseFlags |= PackageParser.PARSE_IS_PRIVILEGED;
10900        }
10901
10902        final PackageParser.Package newPkg;
10903        try {
10904            newPkg = scanPackageLI(disabledPs.codePath, parseFlags, SCAN_NO_PATHS, 0, null);
10905        } catch (PackageManagerException e) {
10906            Slog.w(TAG, "Failed to restore system package:" + newPs.name + ": " + e.getMessage());
10907            return false;
10908        }
10909
10910        // writer
10911        synchronized (mPackages) {
10912            PackageSetting ps = mSettings.mPackages.get(newPkg.packageName);
10913            updatePermissionsLPw(newPkg.packageName, newPkg,
10914                    UPDATE_PERMISSIONS_ALL | UPDATE_PERMISSIONS_REPLACE_PKG);
10915            if (applyUserRestrictions) {
10916                if (DEBUG_REMOVE) {
10917                    Slog.d(TAG, "Propagating install state across reinstall");
10918                }
10919                for (int i = 0; i < allUserHandles.length; i++) {
10920                    if (DEBUG_REMOVE) {
10921                        Slog.d(TAG, "    user " + allUserHandles[i]
10922                                + " => " + perUserInstalled[i]);
10923                    }
10924                    ps.setInstalled(perUserInstalled[i], allUserHandles[i]);
10925                }
10926                // Regardless of writeSettings we need to ensure that this restriction
10927                // state propagation is persisted
10928                mSettings.writeAllUsersPackageRestrictionsLPr();
10929            }
10930            // can downgrade to reader here
10931            if (writeSettings) {
10932                mSettings.writeLPr();
10933            }
10934        }
10935        return true;
10936    }
10937
10938    private boolean deleteInstalledPackageLI(PackageSetting ps,
10939            boolean deleteCodeAndResources, int flags,
10940            int[] allUserHandles, boolean[] perUserInstalled,
10941            PackageRemovedInfo outInfo, boolean writeSettings) {
10942        if (outInfo != null) {
10943            outInfo.uid = ps.appId;
10944        }
10945
10946        // Delete package data from internal structures and also remove data if flag is set
10947        removePackageDataLI(ps, allUserHandles, perUserInstalled, outInfo, flags, writeSettings);
10948
10949        // Delete application code and resources
10950        if (deleteCodeAndResources && (outInfo != null)) {
10951            outInfo.args = createInstallArgsForExisting(packageFlagsToInstallFlags(ps),
10952                    ps.codePathString, ps.resourcePathString, ps.legacyNativeLibraryPathString,
10953                    getAppDexInstructionSets(ps));
10954            if (DEBUG_SD_INSTALL) Slog.i(TAG, "args=" + outInfo.args);
10955        }
10956        return true;
10957    }
10958
10959    @Override
10960    public boolean setBlockUninstallForUser(String packageName, boolean blockUninstall,
10961            int userId) {
10962        mContext.enforceCallingOrSelfPermission(
10963                android.Manifest.permission.DELETE_PACKAGES, null);
10964        synchronized (mPackages) {
10965            PackageSetting ps = mSettings.mPackages.get(packageName);
10966            if (ps == null) {
10967                Log.i(TAG, "Package doesn't exist in set block uninstall " + packageName);
10968                return false;
10969            }
10970            if (!ps.getInstalled(userId)) {
10971                // Can't block uninstall for an app that is not installed or enabled.
10972                Log.i(TAG, "Package not installed in set block uninstall " + packageName);
10973                return false;
10974            }
10975            ps.setBlockUninstall(blockUninstall, userId);
10976            mSettings.writePackageRestrictionsLPr(userId);
10977        }
10978        return true;
10979    }
10980
10981    @Override
10982    public boolean getBlockUninstallForUser(String packageName, int userId) {
10983        synchronized (mPackages) {
10984            PackageSetting ps = mSettings.mPackages.get(packageName);
10985            if (ps == null) {
10986                Log.i(TAG, "Package doesn't exist in get block uninstall " + packageName);
10987                return false;
10988            }
10989            return ps.getBlockUninstall(userId);
10990        }
10991    }
10992
10993    /*
10994     * This method handles package deletion in general
10995     */
10996    private boolean deletePackageLI(String packageName, UserHandle user,
10997            boolean deleteCodeAndResources, int[] allUserHandles, boolean[] perUserInstalled,
10998            int flags, PackageRemovedInfo outInfo,
10999            boolean writeSettings) {
11000        if (packageName == null) {
11001            Slog.w(TAG, "Attempt to delete null packageName.");
11002            return false;
11003        }
11004        if (DEBUG_REMOVE) Slog.d(TAG, "deletePackageLI: " + packageName + " user " + user);
11005        PackageSetting ps;
11006        boolean dataOnly = false;
11007        int removeUser = -1;
11008        int appId = -1;
11009        synchronized (mPackages) {
11010            ps = mSettings.mPackages.get(packageName);
11011            if (ps == null) {
11012                Slog.w(TAG, "Package named '" + packageName + "' doesn't exist.");
11013                return false;
11014            }
11015            if ((!isSystemApp(ps) || (flags&PackageManager.DELETE_SYSTEM_APP) != 0) && user != null
11016                    && user.getIdentifier() != UserHandle.USER_ALL) {
11017                // The caller is asking that the package only be deleted for a single
11018                // user.  To do this, we just mark its uninstalled state and delete
11019                // its data.  If this is a system app, we only allow this to happen if
11020                // they have set the special DELETE_SYSTEM_APP which requests different
11021                // semantics than normal for uninstalling system apps.
11022                if (DEBUG_REMOVE) Slog.d(TAG, "Only deleting for single user");
11023                ps.setUserState(user.getIdentifier(),
11024                        COMPONENT_ENABLED_STATE_DEFAULT,
11025                        false, //installed
11026                        true,  //stopped
11027                        true,  //notLaunched
11028                        false, //hidden
11029                        null, null, null,
11030                        false // blockUninstall
11031                        );
11032                if (!isSystemApp(ps)) {
11033                    if (ps.isAnyInstalled(sUserManager.getUserIds())) {
11034                        // Other user still have this package installed, so all
11035                        // we need to do is clear this user's data and save that
11036                        // it is uninstalled.
11037                        if (DEBUG_REMOVE) Slog.d(TAG, "Still installed by other users");
11038                        removeUser = user.getIdentifier();
11039                        appId = ps.appId;
11040                        mSettings.writePackageRestrictionsLPr(removeUser);
11041                    } else {
11042                        // We need to set it back to 'installed' so the uninstall
11043                        // broadcasts will be sent correctly.
11044                        if (DEBUG_REMOVE) Slog.d(TAG, "Not installed by other users, full delete");
11045                        ps.setInstalled(true, user.getIdentifier());
11046                    }
11047                } else {
11048                    // This is a system app, so we assume that the
11049                    // other users still have this package installed, so all
11050                    // we need to do is clear this user's data and save that
11051                    // it is uninstalled.
11052                    if (DEBUG_REMOVE) Slog.d(TAG, "Deleting system app");
11053                    removeUser = user.getIdentifier();
11054                    appId = ps.appId;
11055                    mSettings.writePackageRestrictionsLPr(removeUser);
11056                }
11057            }
11058        }
11059
11060        if (removeUser >= 0) {
11061            // From above, we determined that we are deleting this only
11062            // for a single user.  Continue the work here.
11063            if (DEBUG_REMOVE) Slog.d(TAG, "Updating install state for user: " + removeUser);
11064            if (outInfo != null) {
11065                outInfo.removedPackage = packageName;
11066                outInfo.removedAppId = appId;
11067                outInfo.removedUsers = new int[] {removeUser};
11068            }
11069            mInstaller.clearUserData(packageName, removeUser);
11070            removeKeystoreDataIfNeeded(removeUser, appId);
11071            schedulePackageCleaning(packageName, removeUser, false);
11072            return true;
11073        }
11074
11075        if (dataOnly) {
11076            // Delete application data first
11077            if (DEBUG_REMOVE) Slog.d(TAG, "Removing package data only");
11078            removePackageDataLI(ps, null, null, outInfo, flags, writeSettings);
11079            return true;
11080        }
11081
11082        boolean ret = false;
11083        if (isSystemApp(ps)) {
11084            if (DEBUG_REMOVE) Slog.d(TAG, "Removing system package:" + ps.name);
11085            // When an updated system application is deleted we delete the existing resources as well and
11086            // fall back to existing code in system partition
11087            ret = deleteSystemPackageLI(ps, allUserHandles, perUserInstalled,
11088                    flags, outInfo, writeSettings);
11089        } else {
11090            if (DEBUG_REMOVE) Slog.d(TAG, "Removing non-system package:" + ps.name);
11091            // Kill application pre-emptively especially for apps on sd.
11092            killApplication(packageName, ps.appId, "uninstall pkg");
11093            ret = deleteInstalledPackageLI(ps, deleteCodeAndResources, flags,
11094                    allUserHandles, perUserInstalled,
11095                    outInfo, writeSettings);
11096        }
11097
11098        return ret;
11099    }
11100
11101    private final class ClearStorageConnection implements ServiceConnection {
11102        IMediaContainerService mContainerService;
11103
11104        @Override
11105        public void onServiceConnected(ComponentName name, IBinder service) {
11106            synchronized (this) {
11107                mContainerService = IMediaContainerService.Stub.asInterface(service);
11108                notifyAll();
11109            }
11110        }
11111
11112        @Override
11113        public void onServiceDisconnected(ComponentName name) {
11114        }
11115    }
11116
11117    private void clearExternalStorageDataSync(String packageName, int userId, boolean allData) {
11118        final boolean mounted;
11119        if (Environment.isExternalStorageEmulated()) {
11120            mounted = true;
11121        } else {
11122            final String status = Environment.getExternalStorageState();
11123
11124            mounted = status.equals(Environment.MEDIA_MOUNTED)
11125                    || status.equals(Environment.MEDIA_MOUNTED_READ_ONLY);
11126        }
11127
11128        if (!mounted) {
11129            return;
11130        }
11131
11132        final Intent containerIntent = new Intent().setComponent(DEFAULT_CONTAINER_COMPONENT);
11133        int[] users;
11134        if (userId == UserHandle.USER_ALL) {
11135            users = sUserManager.getUserIds();
11136        } else {
11137            users = new int[] { userId };
11138        }
11139        final ClearStorageConnection conn = new ClearStorageConnection();
11140        if (mContext.bindServiceAsUser(
11141                containerIntent, conn, Context.BIND_AUTO_CREATE, UserHandle.OWNER)) {
11142            try {
11143                for (int curUser : users) {
11144                    long timeout = SystemClock.uptimeMillis() + 5000;
11145                    synchronized (conn) {
11146                        long now = SystemClock.uptimeMillis();
11147                        while (conn.mContainerService == null && now < timeout) {
11148                            try {
11149                                conn.wait(timeout - now);
11150                            } catch (InterruptedException e) {
11151                            }
11152                        }
11153                    }
11154                    if (conn.mContainerService == null) {
11155                        return;
11156                    }
11157
11158                    final UserEnvironment userEnv = new UserEnvironment(curUser);
11159                    clearDirectory(conn.mContainerService,
11160                            userEnv.buildExternalStorageAppCacheDirs(packageName));
11161                    if (allData) {
11162                        clearDirectory(conn.mContainerService,
11163                                userEnv.buildExternalStorageAppDataDirs(packageName));
11164                        clearDirectory(conn.mContainerService,
11165                                userEnv.buildExternalStorageAppMediaDirs(packageName));
11166                    }
11167                }
11168            } finally {
11169                mContext.unbindService(conn);
11170            }
11171        }
11172    }
11173
11174    @Override
11175    public void clearApplicationUserData(final String packageName,
11176            final IPackageDataObserver observer, final int userId) {
11177        mContext.enforceCallingOrSelfPermission(
11178                android.Manifest.permission.CLEAR_APP_USER_DATA, null);
11179        enforceCrossUserPermission(Binder.getCallingUid(), userId, true, false, "clear application data");
11180        // Queue up an async operation since the package deletion may take a little while.
11181        mHandler.post(new Runnable() {
11182            public void run() {
11183                mHandler.removeCallbacks(this);
11184                final boolean succeeded;
11185                synchronized (mInstallLock) {
11186                    succeeded = clearApplicationUserDataLI(packageName, userId);
11187                }
11188                clearExternalStorageDataSync(packageName, userId, true);
11189                if (succeeded) {
11190                    // invoke DeviceStorageMonitor's update method to clear any notifications
11191                    DeviceStorageMonitorInternal
11192                            dsm = LocalServices.getService(DeviceStorageMonitorInternal.class);
11193                    if (dsm != null) {
11194                        dsm.checkMemory();
11195                    }
11196                }
11197                if(observer != null) {
11198                    try {
11199                        observer.onRemoveCompleted(packageName, succeeded);
11200                    } catch (RemoteException e) {
11201                        Log.i(TAG, "Observer no longer exists.");
11202                    }
11203                } //end if observer
11204            } //end run
11205        });
11206    }
11207
11208    private boolean clearApplicationUserDataLI(String packageName, int userId) {
11209        if (packageName == null) {
11210            Slog.w(TAG, "Attempt to delete null packageName.");
11211            return false;
11212        }
11213
11214        // Try finding details about the requested package
11215        PackageParser.Package pkg;
11216        synchronized (mPackages) {
11217            pkg = mPackages.get(packageName);
11218            if (pkg == null) {
11219                final PackageSetting ps = mSettings.mPackages.get(packageName);
11220                if (ps != null) {
11221                    pkg = ps.pkg;
11222                }
11223            }
11224        }
11225
11226        if (pkg == null) {
11227            Slog.w(TAG, "Package named '" + packageName + "' doesn't exist.");
11228        }
11229
11230        // Always delete data directories for package, even if we found no other
11231        // record of app. This helps users recover from UID mismatches without
11232        // resorting to a full data wipe.
11233        int retCode = mInstaller.clearUserData(packageName, userId);
11234        if (retCode < 0) {
11235            Slog.w(TAG, "Couldn't remove cache files for package: " + packageName);
11236            return false;
11237        }
11238
11239        if (pkg == null) {
11240            return false;
11241        }
11242
11243        if (pkg != null && pkg.applicationInfo != null) {
11244            final int appId = pkg.applicationInfo.uid;
11245            removeKeystoreDataIfNeeded(userId, appId);
11246        }
11247
11248        // Create a native library symlink only if we have native libraries
11249        // and if the native libraries are 32 bit libraries. We do not provide
11250        // this symlink for 64 bit libraries.
11251        if (pkg != null && pkg.applicationInfo.primaryCpuAbi != null &&
11252                !VMRuntime.is64BitAbi(pkg.applicationInfo.primaryCpuAbi)) {
11253            final String nativeLibPath = pkg.applicationInfo.nativeLibraryDir;
11254            if (mInstaller.linkNativeLibraryDirectory(pkg.packageName, nativeLibPath, userId) < 0) {
11255                Slog.w(TAG, "Failed linking native library dir");
11256                return false;
11257            }
11258        }
11259
11260        return true;
11261    }
11262
11263    /**
11264     * Remove entries from the keystore daemon. Will only remove it if the
11265     * {@code appId} is valid.
11266     */
11267    private static void removeKeystoreDataIfNeeded(int userId, int appId) {
11268        if (appId < 0) {
11269            return;
11270        }
11271
11272        final KeyStore keyStore = KeyStore.getInstance();
11273        if (keyStore != null) {
11274            if (userId == UserHandle.USER_ALL) {
11275                for (final int individual : sUserManager.getUserIds()) {
11276                    keyStore.clearUid(UserHandle.getUid(individual, appId));
11277                }
11278            } else {
11279                keyStore.clearUid(UserHandle.getUid(userId, appId));
11280            }
11281        } else {
11282            Slog.w(TAG, "Could not contact keystore to clear entries for app id " + appId);
11283        }
11284    }
11285
11286    @Override
11287    public void deleteApplicationCacheFiles(final String packageName,
11288            final IPackageDataObserver observer) {
11289        mContext.enforceCallingOrSelfPermission(
11290                android.Manifest.permission.DELETE_CACHE_FILES, null);
11291        // Queue up an async operation since the package deletion may take a little while.
11292        final int userId = UserHandle.getCallingUserId();
11293        mHandler.post(new Runnable() {
11294            public void run() {
11295                mHandler.removeCallbacks(this);
11296                final boolean succeded;
11297                synchronized (mInstallLock) {
11298                    succeded = deleteApplicationCacheFilesLI(packageName, userId);
11299                }
11300                clearExternalStorageDataSync(packageName, userId, false);
11301                if(observer != null) {
11302                    try {
11303                        observer.onRemoveCompleted(packageName, succeded);
11304                    } catch (RemoteException e) {
11305                        Log.i(TAG, "Observer no longer exists.");
11306                    }
11307                } //end if observer
11308            } //end run
11309        });
11310    }
11311
11312    private boolean deleteApplicationCacheFilesLI(String packageName, int userId) {
11313        if (packageName == null) {
11314            Slog.w(TAG, "Attempt to delete null packageName.");
11315            return false;
11316        }
11317        PackageParser.Package p;
11318        synchronized (mPackages) {
11319            p = mPackages.get(packageName);
11320        }
11321        if (p == null) {
11322            Slog.w(TAG, "Package named '" + packageName +"' doesn't exist.");
11323            return false;
11324        }
11325        final ApplicationInfo applicationInfo = p.applicationInfo;
11326        if (applicationInfo == null) {
11327            Slog.w(TAG, "Package " + packageName + " has no applicationInfo.");
11328            return false;
11329        }
11330        int retCode = mInstaller.deleteCacheFiles(packageName, userId);
11331        if (retCode < 0) {
11332            Slog.w(TAG, "Couldn't remove cache files for package: "
11333                       + packageName + " u" + userId);
11334            return false;
11335        }
11336        return true;
11337    }
11338
11339    @Override
11340    public void getPackageSizeInfo(final String packageName, int userHandle,
11341            final IPackageStatsObserver observer) {
11342        mContext.enforceCallingOrSelfPermission(
11343                android.Manifest.permission.GET_PACKAGE_SIZE, null);
11344        if (packageName == null) {
11345            throw new IllegalArgumentException("Attempt to get size of null packageName");
11346        }
11347
11348        PackageStats stats = new PackageStats(packageName, userHandle);
11349
11350        /*
11351         * Queue up an async operation since the package measurement may take a
11352         * little while.
11353         */
11354        Message msg = mHandler.obtainMessage(INIT_COPY);
11355        msg.obj = new MeasureParams(stats, observer);
11356        mHandler.sendMessage(msg);
11357    }
11358
11359    private boolean getPackageSizeInfoLI(String packageName, int userHandle,
11360            PackageStats pStats) {
11361        if (packageName == null) {
11362            Slog.w(TAG, "Attempt to get size of null packageName.");
11363            return false;
11364        }
11365        PackageParser.Package p;
11366        boolean dataOnly = false;
11367        String libDirRoot = null;
11368        String asecPath = null;
11369        PackageSetting ps = null;
11370        synchronized (mPackages) {
11371            p = mPackages.get(packageName);
11372            ps = mSettings.mPackages.get(packageName);
11373            if(p == null) {
11374                dataOnly = true;
11375                if((ps == null) || (ps.pkg == null)) {
11376                    Slog.w(TAG, "Package named '" + packageName +"' doesn't exist.");
11377                    return false;
11378                }
11379                p = ps.pkg;
11380            }
11381            if (ps != null) {
11382                libDirRoot = ps.legacyNativeLibraryPathString;
11383            }
11384            if (p != null && (isExternal(p) || p.isForwardLocked())) {
11385                String secureContainerId = cidFromCodePath(p.applicationInfo.getBaseCodePath());
11386                if (secureContainerId != null) {
11387                    asecPath = PackageHelper.getSdFilesystem(secureContainerId);
11388                }
11389            }
11390        }
11391        String publicSrcDir = null;
11392        if(!dataOnly) {
11393            final ApplicationInfo applicationInfo = p.applicationInfo;
11394            if (applicationInfo == null) {
11395                Slog.w(TAG, "Package " + packageName + " has no applicationInfo.");
11396                return false;
11397            }
11398            if (p.isForwardLocked()) {
11399                publicSrcDir = applicationInfo.getBaseResourcePath();
11400            }
11401        }
11402        // TODO: extend to measure size of split APKs
11403        // TODO(multiArch): Extend getSizeInfo to look at the full subdirectory tree,
11404        // not just the first level.
11405        // TODO(multiArch): Extend getSizeInfo to look at *all* instruction sets, not
11406        // just the primary.
11407        String[] dexCodeInstructionSets = getDexCodeInstructionSets(getAppDexInstructionSets(ps));
11408        int res = mInstaller.getSizeInfo(packageName, userHandle, p.baseCodePath, libDirRoot,
11409                publicSrcDir, asecPath, dexCodeInstructionSets, pStats);
11410        if (res < 0) {
11411            return false;
11412        }
11413
11414        // Fix-up for forward-locked applications in ASEC containers.
11415        if (!isExternal(p)) {
11416            pStats.codeSize += pStats.externalCodeSize;
11417            pStats.externalCodeSize = 0L;
11418        }
11419
11420        return true;
11421    }
11422
11423
11424    @Override
11425    public void addPackageToPreferred(String packageName) {
11426        Slog.w(TAG, "addPackageToPreferred: this is now a no-op");
11427    }
11428
11429    @Override
11430    public void removePackageFromPreferred(String packageName) {
11431        Slog.w(TAG, "removePackageFromPreferred: this is now a no-op");
11432    }
11433
11434    @Override
11435    public List<PackageInfo> getPreferredPackages(int flags) {
11436        return new ArrayList<PackageInfo>();
11437    }
11438
11439    private int getUidTargetSdkVersionLockedLPr(int uid) {
11440        Object obj = mSettings.getUserIdLPr(uid);
11441        if (obj instanceof SharedUserSetting) {
11442            final SharedUserSetting sus = (SharedUserSetting) obj;
11443            int vers = Build.VERSION_CODES.CUR_DEVELOPMENT;
11444            final Iterator<PackageSetting> it = sus.packages.iterator();
11445            while (it.hasNext()) {
11446                final PackageSetting ps = it.next();
11447                if (ps.pkg != null) {
11448                    int v = ps.pkg.applicationInfo.targetSdkVersion;
11449                    if (v < vers) vers = v;
11450                }
11451            }
11452            return vers;
11453        } else if (obj instanceof PackageSetting) {
11454            final PackageSetting ps = (PackageSetting) obj;
11455            if (ps.pkg != null) {
11456                return ps.pkg.applicationInfo.targetSdkVersion;
11457            }
11458        }
11459        return Build.VERSION_CODES.CUR_DEVELOPMENT;
11460    }
11461
11462    @Override
11463    public void addPreferredActivity(IntentFilter filter, int match,
11464            ComponentName[] set, ComponentName activity, int userId) {
11465        addPreferredActivityInternal(filter, match, set, activity, true, userId,
11466                "Adding preferred");
11467    }
11468
11469    private void addPreferredActivityInternal(IntentFilter filter, int match,
11470            ComponentName[] set, ComponentName activity, boolean always, int userId,
11471            String opname) {
11472        // writer
11473        int callingUid = Binder.getCallingUid();
11474        enforceCrossUserPermission(callingUid, userId, true, false, "add preferred activity");
11475        if (filter.countActions() == 0) {
11476            Slog.w(TAG, "Cannot set a preferred activity with no filter actions");
11477            return;
11478        }
11479        synchronized (mPackages) {
11480            if (mContext.checkCallingOrSelfPermission(
11481                    android.Manifest.permission.SET_PREFERRED_APPLICATIONS)
11482                    != PackageManager.PERMISSION_GRANTED) {
11483                if (getUidTargetSdkVersionLockedLPr(callingUid)
11484                        < Build.VERSION_CODES.FROYO) {
11485                    Slog.w(TAG, "Ignoring addPreferredActivity() from uid "
11486                            + callingUid);
11487                    return;
11488                }
11489                mContext.enforceCallingOrSelfPermission(
11490                        android.Manifest.permission.SET_PREFERRED_APPLICATIONS, null);
11491            }
11492
11493            PreferredIntentResolver pir = mSettings.editPreferredActivitiesLPw(userId);
11494            Slog.i(TAG, opname + " activity " + activity.flattenToShortString() + " for user "
11495                    + userId + ":");
11496            filter.dump(new LogPrinter(Log.INFO, TAG), "  ");
11497            pir.addFilter(new PreferredActivity(filter, match, set, activity, always));
11498            scheduleWritePackageRestrictionsLocked(userId);
11499        }
11500    }
11501
11502    @Override
11503    public void replacePreferredActivity(IntentFilter filter, int match,
11504            ComponentName[] set, ComponentName activity, int userId) {
11505        if (filter.countActions() != 1) {
11506            throw new IllegalArgumentException(
11507                    "replacePreferredActivity expects filter to have only 1 action.");
11508        }
11509        if (filter.countDataAuthorities() != 0
11510                || filter.countDataPaths() != 0
11511                || filter.countDataSchemes() > 1
11512                || filter.countDataTypes() != 0) {
11513            throw new IllegalArgumentException(
11514                    "replacePreferredActivity expects filter to have no data authorities, " +
11515                    "paths, or types; and at most one scheme.");
11516        }
11517
11518        final int callingUid = Binder.getCallingUid();
11519        enforceCrossUserPermission(callingUid, userId, true, false, "replace preferred activity");
11520        synchronized (mPackages) {
11521            if (mContext.checkCallingOrSelfPermission(
11522                    android.Manifest.permission.SET_PREFERRED_APPLICATIONS)
11523                    != PackageManager.PERMISSION_GRANTED) {
11524                if (getUidTargetSdkVersionLockedLPr(callingUid)
11525                        < Build.VERSION_CODES.FROYO) {
11526                    Slog.w(TAG, "Ignoring replacePreferredActivity() from uid "
11527                            + Binder.getCallingUid());
11528                    return;
11529                }
11530                mContext.enforceCallingOrSelfPermission(
11531                        android.Manifest.permission.SET_PREFERRED_APPLICATIONS, null);
11532            }
11533
11534            PreferredIntentResolver pir = mSettings.mPreferredActivities.get(userId);
11535            if (pir != null) {
11536                // Get all of the existing entries that exactly match this filter.
11537                ArrayList<PreferredActivity> existing = pir.findFilters(filter);
11538                if (existing != null && existing.size() == 1) {
11539                    PreferredActivity cur = existing.get(0);
11540                    if (DEBUG_PREFERRED) {
11541                        Slog.i(TAG, "Checking replace of preferred:");
11542                        filter.dump(new LogPrinter(Log.INFO, TAG), "  ");
11543                        if (!cur.mPref.mAlways) {
11544                            Slog.i(TAG, "  -- CUR; not mAlways!");
11545                        } else {
11546                            Slog.i(TAG, "  -- CUR: mMatch=" + cur.mPref.mMatch);
11547                            Slog.i(TAG, "  -- CUR: mSet="
11548                                    + Arrays.toString(cur.mPref.mSetComponents));
11549                            Slog.i(TAG, "  -- CUR: mComponent=" + cur.mPref.mShortComponent);
11550                            Slog.i(TAG, "  -- NEW: mMatch="
11551                                    + (match&IntentFilter.MATCH_CATEGORY_MASK));
11552                            Slog.i(TAG, "  -- CUR: mSet=" + Arrays.toString(set));
11553                            Slog.i(TAG, "  -- CUR: mComponent=" + activity.flattenToShortString());
11554                        }
11555                    }
11556                    if (cur.mPref.mAlways && cur.mPref.mComponent.equals(activity)
11557                            && cur.mPref.mMatch == (match&IntentFilter.MATCH_CATEGORY_MASK)
11558                            && cur.mPref.sameSet(set)) {
11559                        // Setting the preferred activity to what it happens to be already
11560                        if (DEBUG_PREFERRED) {
11561                            Slog.i(TAG, "Replacing with same preferred activity "
11562                                    + cur.mPref.mShortComponent + " for user "
11563                                    + userId + ":");
11564                            filter.dump(new LogPrinter(Log.INFO, TAG), "  ");
11565                        }
11566                        return;
11567                    }
11568                }
11569
11570                if (existing != null) {
11571                    if (DEBUG_PREFERRED) {
11572                        Slog.i(TAG, existing.size() + " existing preferred matches for:");
11573                        filter.dump(new LogPrinter(Log.INFO, TAG), "  ");
11574                    }
11575                    for (int i = 0; i < existing.size(); i++) {
11576                        PreferredActivity pa = existing.get(i);
11577                        if (DEBUG_PREFERRED) {
11578                            Slog.i(TAG, "Removing existing preferred activity "
11579                                    + pa.mPref.mComponent + ":");
11580                            pa.dump(new LogPrinter(Log.INFO, TAG), "  ");
11581                        }
11582                        pir.removeFilter(pa);
11583                    }
11584                }
11585            }
11586            addPreferredActivityInternal(filter, match, set, activity, true, userId,
11587                    "Replacing preferred");
11588        }
11589    }
11590
11591    @Override
11592    public void clearPackagePreferredActivities(String packageName) {
11593        final int uid = Binder.getCallingUid();
11594        // writer
11595        synchronized (mPackages) {
11596            PackageParser.Package pkg = mPackages.get(packageName);
11597            if (pkg == null || pkg.applicationInfo.uid != uid) {
11598                if (mContext.checkCallingOrSelfPermission(
11599                        android.Manifest.permission.SET_PREFERRED_APPLICATIONS)
11600                        != PackageManager.PERMISSION_GRANTED) {
11601                    if (getUidTargetSdkVersionLockedLPr(Binder.getCallingUid())
11602                            < Build.VERSION_CODES.FROYO) {
11603                        Slog.w(TAG, "Ignoring clearPackagePreferredActivities() from uid "
11604                                + Binder.getCallingUid());
11605                        return;
11606                    }
11607                    mContext.enforceCallingOrSelfPermission(
11608                            android.Manifest.permission.SET_PREFERRED_APPLICATIONS, null);
11609                }
11610            }
11611
11612            int user = UserHandle.getCallingUserId();
11613            if (clearPackagePreferredActivitiesLPw(packageName, user)) {
11614                scheduleWritePackageRestrictionsLocked(user);
11615            }
11616        }
11617    }
11618
11619    /** This method takes a specific user id as well as UserHandle.USER_ALL. */
11620    boolean clearPackagePreferredActivitiesLPw(String packageName, int userId) {
11621        ArrayList<PreferredActivity> removed = null;
11622        boolean changed = false;
11623        for (int i=0; i<mSettings.mPreferredActivities.size(); i++) {
11624            final int thisUserId = mSettings.mPreferredActivities.keyAt(i);
11625            PreferredIntentResolver pir = mSettings.mPreferredActivities.valueAt(i);
11626            if (userId != UserHandle.USER_ALL && userId != thisUserId) {
11627                continue;
11628            }
11629            Iterator<PreferredActivity> it = pir.filterIterator();
11630            while (it.hasNext()) {
11631                PreferredActivity pa = it.next();
11632                // Mark entry for removal only if it matches the package name
11633                // and the entry is of type "always".
11634                if (packageName == null ||
11635                        (pa.mPref.mComponent.getPackageName().equals(packageName)
11636                                && pa.mPref.mAlways)) {
11637                    if (removed == null) {
11638                        removed = new ArrayList<PreferredActivity>();
11639                    }
11640                    removed.add(pa);
11641                }
11642            }
11643            if (removed != null) {
11644                for (int j=0; j<removed.size(); j++) {
11645                    PreferredActivity pa = removed.get(j);
11646                    pir.removeFilter(pa);
11647                }
11648                changed = true;
11649            }
11650        }
11651        return changed;
11652    }
11653
11654    @Override
11655    public void resetPreferredActivities(int userId) {
11656        /* TODO: Actually use userId. Why is it being passed in? */
11657        mContext.enforceCallingOrSelfPermission(
11658                android.Manifest.permission.SET_PREFERRED_APPLICATIONS, null);
11659        // writer
11660        synchronized (mPackages) {
11661            int user = UserHandle.getCallingUserId();
11662            clearPackagePreferredActivitiesLPw(null, user);
11663            mSettings.readDefaultPreferredAppsLPw(this, user);
11664            scheduleWritePackageRestrictionsLocked(user);
11665        }
11666    }
11667
11668    @Override
11669    public int getPreferredActivities(List<IntentFilter> outFilters,
11670            List<ComponentName> outActivities, String packageName) {
11671
11672        int num = 0;
11673        final int userId = UserHandle.getCallingUserId();
11674        // reader
11675        synchronized (mPackages) {
11676            PreferredIntentResolver pir = mSettings.mPreferredActivities.get(userId);
11677            if (pir != null) {
11678                final Iterator<PreferredActivity> it = pir.filterIterator();
11679                while (it.hasNext()) {
11680                    final PreferredActivity pa = it.next();
11681                    if (packageName == null
11682                            || (pa.mPref.mComponent.getPackageName().equals(packageName)
11683                                    && pa.mPref.mAlways)) {
11684                        if (outFilters != null) {
11685                            outFilters.add(new IntentFilter(pa));
11686                        }
11687                        if (outActivities != null) {
11688                            outActivities.add(pa.mPref.mComponent);
11689                        }
11690                    }
11691                }
11692            }
11693        }
11694
11695        return num;
11696    }
11697
11698    @Override
11699    public void addPersistentPreferredActivity(IntentFilter filter, ComponentName activity,
11700            int userId) {
11701        int callingUid = Binder.getCallingUid();
11702        if (callingUid != Process.SYSTEM_UID) {
11703            throw new SecurityException(
11704                    "addPersistentPreferredActivity can only be run by the system");
11705        }
11706        if (filter.countActions() == 0) {
11707            Slog.w(TAG, "Cannot set a preferred activity with no filter actions");
11708            return;
11709        }
11710        synchronized (mPackages) {
11711            Slog.i(TAG, "Adding persistent preferred activity " + activity + " for user " + userId +
11712                    " :");
11713            filter.dump(new LogPrinter(Log.INFO, TAG), "  ");
11714            mSettings.editPersistentPreferredActivitiesLPw(userId).addFilter(
11715                    new PersistentPreferredActivity(filter, activity));
11716            scheduleWritePackageRestrictionsLocked(userId);
11717        }
11718    }
11719
11720    @Override
11721    public void clearPackagePersistentPreferredActivities(String packageName, int userId) {
11722        int callingUid = Binder.getCallingUid();
11723        if (callingUid != Process.SYSTEM_UID) {
11724            throw new SecurityException(
11725                    "clearPackagePersistentPreferredActivities can only be run by the system");
11726        }
11727        ArrayList<PersistentPreferredActivity> removed = null;
11728        boolean changed = false;
11729        synchronized (mPackages) {
11730            for (int i=0; i<mSettings.mPersistentPreferredActivities.size(); i++) {
11731                final int thisUserId = mSettings.mPersistentPreferredActivities.keyAt(i);
11732                PersistentPreferredIntentResolver ppir = mSettings.mPersistentPreferredActivities
11733                        .valueAt(i);
11734                if (userId != thisUserId) {
11735                    continue;
11736                }
11737                Iterator<PersistentPreferredActivity> it = ppir.filterIterator();
11738                while (it.hasNext()) {
11739                    PersistentPreferredActivity ppa = it.next();
11740                    // Mark entry for removal only if it matches the package name.
11741                    if (ppa.mComponent.getPackageName().equals(packageName)) {
11742                        if (removed == null) {
11743                            removed = new ArrayList<PersistentPreferredActivity>();
11744                        }
11745                        removed.add(ppa);
11746                    }
11747                }
11748                if (removed != null) {
11749                    for (int j=0; j<removed.size(); j++) {
11750                        PersistentPreferredActivity ppa = removed.get(j);
11751                        ppir.removeFilter(ppa);
11752                    }
11753                    changed = true;
11754                }
11755            }
11756
11757            if (changed) {
11758                scheduleWritePackageRestrictionsLocked(userId);
11759            }
11760        }
11761    }
11762
11763    @Override
11764    public void addCrossProfileIntentFilter(IntentFilter intentFilter, String ownerPackage,
11765            int ownerUserId, int sourceUserId, int targetUserId, int flags) {
11766        mContext.enforceCallingOrSelfPermission(
11767                        android.Manifest.permission.INTERACT_ACROSS_USERS_FULL, null);
11768        int callingUid = Binder.getCallingUid();
11769        enforceOwnerRights(ownerPackage, ownerUserId, callingUid);
11770        enforceShellRestriction(UserManager.DISALLOW_DEBUGGING_FEATURES, callingUid, sourceUserId);
11771        if (intentFilter.countActions() == 0) {
11772            Slog.w(TAG, "Cannot set a crossProfile intent filter with no filter actions");
11773            return;
11774        }
11775        synchronized (mPackages) {
11776            CrossProfileIntentFilter newFilter = new CrossProfileIntentFilter(intentFilter,
11777                    ownerPackage, UserHandle.getUserId(callingUid), targetUserId, flags);
11778            CrossProfileIntentResolver resolver =
11779                    mSettings.editCrossProfileIntentResolverLPw(sourceUserId);
11780            ArrayList<CrossProfileIntentFilter> existing = resolver.findFilters(intentFilter);
11781            // We have all those whose filter is equal. Now checking if the rest is equal as well.
11782            if (existing != null) {
11783                int size = existing.size();
11784                for (int i = 0; i < size; i++) {
11785                    if (newFilter.equalsIgnoreFilter(existing.get(i))) {
11786                        return;
11787                    }
11788                }
11789            }
11790            resolver.addFilter(newFilter);
11791            scheduleWritePackageRestrictionsLocked(sourceUserId);
11792        }
11793    }
11794
11795    @Override
11796    public void clearCrossProfileIntentFilters(int sourceUserId, String ownerPackage,
11797            int ownerUserId) {
11798        mContext.enforceCallingOrSelfPermission(
11799                        android.Manifest.permission.INTERACT_ACROSS_USERS_FULL, null);
11800        int callingUid = Binder.getCallingUid();
11801        enforceOwnerRights(ownerPackage, ownerUserId, callingUid);
11802        enforceShellRestriction(UserManager.DISALLOW_DEBUGGING_FEATURES, callingUid, sourceUserId);
11803        int callingUserId = UserHandle.getUserId(callingUid);
11804        synchronized (mPackages) {
11805            CrossProfileIntentResolver resolver =
11806                    mSettings.editCrossProfileIntentResolverLPw(sourceUserId);
11807            ArraySet<CrossProfileIntentFilter> set =
11808                    new ArraySet<CrossProfileIntentFilter>(resolver.filterSet());
11809            for (CrossProfileIntentFilter filter : set) {
11810                if (filter.getOwnerPackage().equals(ownerPackage)
11811                        && filter.getOwnerUserId() == callingUserId) {
11812                    resolver.removeFilter(filter);
11813                }
11814            }
11815            scheduleWritePackageRestrictionsLocked(sourceUserId);
11816        }
11817    }
11818
11819    // Enforcing that callingUid is owning pkg on userId
11820    private void enforceOwnerRights(String pkg, int userId, int callingUid) {
11821        // The system owns everything.
11822        if (UserHandle.getAppId(callingUid) == Process.SYSTEM_UID) {
11823            return;
11824        }
11825        int callingUserId = UserHandle.getUserId(callingUid);
11826        if (callingUserId != userId) {
11827            throw new SecurityException("calling uid " + callingUid
11828                    + " pretends to own " + pkg + " on user " + userId + " but belongs to user "
11829                    + callingUserId);
11830        }
11831        PackageInfo pi = getPackageInfo(pkg, 0, callingUserId);
11832        if (pi == null) {
11833            throw new IllegalArgumentException("Unknown package " + pkg + " on user "
11834                    + callingUserId);
11835        }
11836        if (!UserHandle.isSameApp(pi.applicationInfo.uid, callingUid)) {
11837            throw new SecurityException("Calling uid " + callingUid
11838                    + " does not own package " + pkg);
11839        }
11840    }
11841
11842    @Override
11843    public ComponentName getHomeActivities(List<ResolveInfo> allHomeCandidates) {
11844        Intent intent = new Intent(Intent.ACTION_MAIN);
11845        intent.addCategory(Intent.CATEGORY_HOME);
11846
11847        final int callingUserId = UserHandle.getCallingUserId();
11848        List<ResolveInfo> list = queryIntentActivities(intent, null,
11849                PackageManager.GET_META_DATA, callingUserId);
11850        ResolveInfo preferred = findPreferredActivity(intent, null, 0, list, 0,
11851                true, false, false, callingUserId);
11852
11853        allHomeCandidates.clear();
11854        if (list != null) {
11855            for (ResolveInfo ri : list) {
11856                allHomeCandidates.add(ri);
11857            }
11858        }
11859        return (preferred == null || preferred.activityInfo == null)
11860                ? null
11861                : new ComponentName(preferred.activityInfo.packageName,
11862                        preferred.activityInfo.name);
11863    }
11864
11865    @Override
11866    public void setApplicationEnabledSetting(String appPackageName,
11867            int newState, int flags, int userId, String callingPackage) {
11868        if (!sUserManager.exists(userId)) return;
11869        if (callingPackage == null) {
11870            callingPackage = Integer.toString(Binder.getCallingUid());
11871        }
11872        setEnabledSetting(appPackageName, null, newState, flags, userId, callingPackage);
11873    }
11874
11875    @Override
11876    public void setComponentEnabledSetting(ComponentName componentName,
11877            int newState, int flags, int userId) {
11878        if (!sUserManager.exists(userId)) return;
11879        setEnabledSetting(componentName.getPackageName(),
11880                componentName.getClassName(), newState, flags, userId, null);
11881    }
11882
11883    private void setEnabledSetting(final String packageName, String className, int newState,
11884            final int flags, int userId, String callingPackage) {
11885        if (!(newState == COMPONENT_ENABLED_STATE_DEFAULT
11886              || newState == COMPONENT_ENABLED_STATE_ENABLED
11887              || newState == COMPONENT_ENABLED_STATE_DISABLED
11888              || newState == COMPONENT_ENABLED_STATE_DISABLED_USER
11889              || newState == COMPONENT_ENABLED_STATE_DISABLED_UNTIL_USED)) {
11890            throw new IllegalArgumentException("Invalid new component state: "
11891                    + newState);
11892        }
11893        PackageSetting pkgSetting;
11894        final int uid = Binder.getCallingUid();
11895        final int permission = mContext.checkCallingOrSelfPermission(
11896                android.Manifest.permission.CHANGE_COMPONENT_ENABLED_STATE);
11897        enforceCrossUserPermission(uid, userId, false, true, "set enabled");
11898        final boolean allowedByPermission = (permission == PackageManager.PERMISSION_GRANTED);
11899        boolean sendNow = false;
11900        boolean isApp = (className == null);
11901        String componentName = isApp ? packageName : className;
11902        int packageUid = -1;
11903        ArrayList<String> components;
11904
11905        // writer
11906        synchronized (mPackages) {
11907            pkgSetting = mSettings.mPackages.get(packageName);
11908            if (pkgSetting == null) {
11909                if (className == null) {
11910                    throw new IllegalArgumentException(
11911                            "Unknown package: " + packageName);
11912                }
11913                throw new IllegalArgumentException(
11914                        "Unknown component: " + packageName
11915                        + "/" + className);
11916            }
11917            // Allow root and verify that userId is not being specified by a different user
11918            if (!allowedByPermission && !UserHandle.isSameApp(uid, pkgSetting.appId)) {
11919                throw new SecurityException(
11920                        "Permission Denial: attempt to change component state from pid="
11921                        + Binder.getCallingPid()
11922                        + ", uid=" + uid + ", package uid=" + pkgSetting.appId);
11923            }
11924            if (className == null) {
11925                // We're dealing with an application/package level state change
11926                if (pkgSetting.getEnabled(userId) == newState) {
11927                    // Nothing to do
11928                    return;
11929                }
11930                if (newState == PackageManager.COMPONENT_ENABLED_STATE_DEFAULT
11931                    || newState == PackageManager.COMPONENT_ENABLED_STATE_ENABLED) {
11932                    // Don't care about who enables an app.
11933                    callingPackage = null;
11934                }
11935                pkgSetting.setEnabled(newState, userId, callingPackage);
11936                // pkgSetting.pkg.mSetEnabled = newState;
11937            } else {
11938                // We're dealing with a component level state change
11939                // First, verify that this is a valid class name.
11940                PackageParser.Package pkg = pkgSetting.pkg;
11941                if (pkg == null || !pkg.hasComponentClassName(className)) {
11942                    if (pkg.applicationInfo.targetSdkVersion >= Build.VERSION_CODES.JELLY_BEAN) {
11943                        throw new IllegalArgumentException("Component class " + className
11944                                + " does not exist in " + packageName);
11945                    } else {
11946                        Slog.w(TAG, "Failed setComponentEnabledSetting: component class "
11947                                + className + " does not exist in " + packageName);
11948                    }
11949                }
11950                switch (newState) {
11951                case COMPONENT_ENABLED_STATE_ENABLED:
11952                    if (!pkgSetting.enableComponentLPw(className, userId)) {
11953                        return;
11954                    }
11955                    break;
11956                case COMPONENT_ENABLED_STATE_DISABLED:
11957                    if (!pkgSetting.disableComponentLPw(className, userId)) {
11958                        return;
11959                    }
11960                    break;
11961                case COMPONENT_ENABLED_STATE_DEFAULT:
11962                    if (!pkgSetting.restoreComponentLPw(className, userId)) {
11963                        return;
11964                    }
11965                    break;
11966                default:
11967                    Slog.e(TAG, "Invalid new component state: " + newState);
11968                    return;
11969                }
11970            }
11971            mSettings.writePackageRestrictionsLPr(userId);
11972            components = mPendingBroadcasts.get(userId, packageName);
11973            final boolean newPackage = components == null;
11974            if (newPackage) {
11975                components = new ArrayList<String>();
11976            }
11977            if (!components.contains(componentName)) {
11978                components.add(componentName);
11979            }
11980            if ((flags&PackageManager.DONT_KILL_APP) == 0) {
11981                sendNow = true;
11982                // Purge entry from pending broadcast list if another one exists already
11983                // since we are sending one right away.
11984                mPendingBroadcasts.remove(userId, packageName);
11985            } else {
11986                if (newPackage) {
11987                    mPendingBroadcasts.put(userId, packageName, components);
11988                }
11989                if (!mHandler.hasMessages(SEND_PENDING_BROADCAST)) {
11990                    // Schedule a message
11991                    mHandler.sendEmptyMessageDelayed(SEND_PENDING_BROADCAST, BROADCAST_DELAY);
11992                }
11993            }
11994        }
11995
11996        long callingId = Binder.clearCallingIdentity();
11997        try {
11998            if (sendNow) {
11999                packageUid = UserHandle.getUid(userId, pkgSetting.appId);
12000                sendPackageChangedBroadcast(packageName,
12001                        (flags&PackageManager.DONT_KILL_APP) != 0, components, packageUid);
12002            }
12003        } finally {
12004            Binder.restoreCallingIdentity(callingId);
12005        }
12006    }
12007
12008    private void sendPackageChangedBroadcast(String packageName,
12009            boolean killFlag, ArrayList<String> componentNames, int packageUid) {
12010        if (DEBUG_INSTALL)
12011            Log.v(TAG, "Sending package changed: package=" + packageName + " components="
12012                    + componentNames);
12013        Bundle extras = new Bundle(4);
12014        extras.putString(Intent.EXTRA_CHANGED_COMPONENT_NAME, componentNames.get(0));
12015        String nameList[] = new String[componentNames.size()];
12016        componentNames.toArray(nameList);
12017        extras.putStringArray(Intent.EXTRA_CHANGED_COMPONENT_NAME_LIST, nameList);
12018        extras.putBoolean(Intent.EXTRA_DONT_KILL_APP, killFlag);
12019        extras.putInt(Intent.EXTRA_UID, packageUid);
12020        sendPackageBroadcast(Intent.ACTION_PACKAGE_CHANGED,  packageName, extras, null, null,
12021                new int[] {UserHandle.getUserId(packageUid)});
12022    }
12023
12024    @Override
12025    public void setPackageStoppedState(String packageName, boolean stopped, int userId) {
12026        if (!sUserManager.exists(userId)) return;
12027        final int uid = Binder.getCallingUid();
12028        final int permission = mContext.checkCallingOrSelfPermission(
12029                android.Manifest.permission.CHANGE_COMPONENT_ENABLED_STATE);
12030        final boolean allowedByPermission = (permission == PackageManager.PERMISSION_GRANTED);
12031        enforceCrossUserPermission(uid, userId, true, true, "stop package");
12032        // writer
12033        synchronized (mPackages) {
12034            if (mSettings.setPackageStoppedStateLPw(packageName, stopped, allowedByPermission,
12035                    uid, userId)) {
12036                scheduleWritePackageRestrictionsLocked(userId);
12037            }
12038        }
12039    }
12040
12041    @Override
12042    public String getInstallerPackageName(String packageName) {
12043        // reader
12044        synchronized (mPackages) {
12045            return mSettings.getInstallerPackageNameLPr(packageName);
12046        }
12047    }
12048
12049    @Override
12050    public int getApplicationEnabledSetting(String packageName, int userId) {
12051        if (!sUserManager.exists(userId)) return COMPONENT_ENABLED_STATE_DISABLED;
12052        int uid = Binder.getCallingUid();
12053        enforceCrossUserPermission(uid, userId, false, false, "get enabled");
12054        // reader
12055        synchronized (mPackages) {
12056            return mSettings.getApplicationEnabledSettingLPr(packageName, userId);
12057        }
12058    }
12059
12060    @Override
12061    public int getComponentEnabledSetting(ComponentName componentName, int userId) {
12062        if (!sUserManager.exists(userId)) return COMPONENT_ENABLED_STATE_DISABLED;
12063        int uid = Binder.getCallingUid();
12064        enforceCrossUserPermission(uid, userId, false, false, "get component enabled");
12065        // reader
12066        synchronized (mPackages) {
12067            return mSettings.getComponentEnabledSettingLPr(componentName, userId);
12068        }
12069    }
12070
12071    @Override
12072    public void enterSafeMode() {
12073        enforceSystemOrRoot("Only the system can request entering safe mode");
12074
12075        if (!mSystemReady) {
12076            mSafeMode = true;
12077        }
12078    }
12079
12080    @Override
12081    public void systemReady() {
12082        mSystemReady = true;
12083
12084        // Read the compatibilty setting when the system is ready.
12085        boolean compatibilityModeEnabled = android.provider.Settings.Global.getInt(
12086                mContext.getContentResolver(),
12087                android.provider.Settings.Global.COMPATIBILITY_MODE, 1) == 1;
12088        PackageParser.setCompatibilityModeEnabled(compatibilityModeEnabled);
12089        if (DEBUG_SETTINGS) {
12090            Log.d(TAG, "compatibility mode:" + compatibilityModeEnabled);
12091        }
12092
12093        synchronized (mPackages) {
12094            // Verify that all of the preferred activity components actually
12095            // exist.  It is possible for applications to be updated and at
12096            // that point remove a previously declared activity component that
12097            // had been set as a preferred activity.  We try to clean this up
12098            // the next time we encounter that preferred activity, but it is
12099            // possible for the user flow to never be able to return to that
12100            // situation so here we do a sanity check to make sure we haven't
12101            // left any junk around.
12102            ArrayList<PreferredActivity> removed = new ArrayList<PreferredActivity>();
12103            for (int i=0; i<mSettings.mPreferredActivities.size(); i++) {
12104                PreferredIntentResolver pir = mSettings.mPreferredActivities.valueAt(i);
12105                removed.clear();
12106                for (PreferredActivity pa : pir.filterSet()) {
12107                    if (mActivities.mActivities.get(pa.mPref.mComponent) == null) {
12108                        removed.add(pa);
12109                    }
12110                }
12111                if (removed.size() > 0) {
12112                    for (int r=0; r<removed.size(); r++) {
12113                        PreferredActivity pa = removed.get(r);
12114                        Slog.w(TAG, "Removing dangling preferred activity: "
12115                                + pa.mPref.mComponent);
12116                        pir.removeFilter(pa);
12117                    }
12118                    mSettings.writePackageRestrictionsLPr(
12119                            mSettings.mPreferredActivities.keyAt(i));
12120                }
12121            }
12122        }
12123        sUserManager.systemReady();
12124
12125        // Kick off any messages waiting for system ready
12126        if (mPostSystemReadyMessages != null) {
12127            for (Message msg : mPostSystemReadyMessages) {
12128                msg.sendToTarget();
12129            }
12130            mPostSystemReadyMessages = null;
12131        }
12132    }
12133
12134    @Override
12135    public boolean isSafeMode() {
12136        return mSafeMode;
12137    }
12138
12139    @Override
12140    public boolean hasSystemUidErrors() {
12141        return mHasSystemUidErrors;
12142    }
12143
12144    static String arrayToString(int[] array) {
12145        StringBuffer buf = new StringBuffer(128);
12146        buf.append('[');
12147        if (array != null) {
12148            for (int i=0; i<array.length; i++) {
12149                if (i > 0) buf.append(", ");
12150                buf.append(array[i]);
12151            }
12152        }
12153        buf.append(']');
12154        return buf.toString();
12155    }
12156
12157    static class DumpState {
12158        public static final int DUMP_LIBS = 1 << 0;
12159        public static final int DUMP_FEATURES = 1 << 1;
12160        public static final int DUMP_RESOLVERS = 1 << 2;
12161        public static final int DUMP_PERMISSIONS = 1 << 3;
12162        public static final int DUMP_PACKAGES = 1 << 4;
12163        public static final int DUMP_SHARED_USERS = 1 << 5;
12164        public static final int DUMP_MESSAGES = 1 << 6;
12165        public static final int DUMP_PROVIDERS = 1 << 7;
12166        public static final int DUMP_VERIFIERS = 1 << 8;
12167        public static final int DUMP_PREFERRED = 1 << 9;
12168        public static final int DUMP_PREFERRED_XML = 1 << 10;
12169        public static final int DUMP_KEYSETS = 1 << 11;
12170        public static final int DUMP_VERSION = 1 << 12;
12171        public static final int DUMP_INSTALLS = 1 << 13;
12172
12173        public static final int OPTION_SHOW_FILTERS = 1 << 0;
12174
12175        private int mTypes;
12176
12177        private int mOptions;
12178
12179        private boolean mTitlePrinted;
12180
12181        private SharedUserSetting mSharedUser;
12182
12183        public boolean isDumping(int type) {
12184            if (mTypes == 0 && type != DUMP_PREFERRED_XML) {
12185                return true;
12186            }
12187
12188            return (mTypes & type) != 0;
12189        }
12190
12191        public void setDump(int type) {
12192            mTypes |= type;
12193        }
12194
12195        public boolean isOptionEnabled(int option) {
12196            return (mOptions & option) != 0;
12197        }
12198
12199        public void setOptionEnabled(int option) {
12200            mOptions |= option;
12201        }
12202
12203        public boolean onTitlePrinted() {
12204            final boolean printed = mTitlePrinted;
12205            mTitlePrinted = true;
12206            return printed;
12207        }
12208
12209        public boolean getTitlePrinted() {
12210            return mTitlePrinted;
12211        }
12212
12213        public void setTitlePrinted(boolean enabled) {
12214            mTitlePrinted = enabled;
12215        }
12216
12217        public SharedUserSetting getSharedUser() {
12218            return mSharedUser;
12219        }
12220
12221        public void setSharedUser(SharedUserSetting user) {
12222            mSharedUser = user;
12223        }
12224    }
12225
12226    @Override
12227    protected void dump(FileDescriptor fd, PrintWriter pw, String[] args) {
12228        if (mContext.checkCallingOrSelfPermission(android.Manifest.permission.DUMP)
12229                != PackageManager.PERMISSION_GRANTED) {
12230            pw.println("Permission Denial: can't dump ActivityManager from from pid="
12231                    + Binder.getCallingPid()
12232                    + ", uid=" + Binder.getCallingUid()
12233                    + " without permission "
12234                    + android.Manifest.permission.DUMP);
12235            return;
12236        }
12237
12238        DumpState dumpState = new DumpState();
12239        boolean fullPreferred = false;
12240        boolean checkin = false;
12241
12242        String packageName = null;
12243
12244        int opti = 0;
12245        while (opti < args.length) {
12246            String opt = args[opti];
12247            if (opt == null || opt.length() <= 0 || opt.charAt(0) != '-') {
12248                break;
12249            }
12250            opti++;
12251
12252            if ("-a".equals(opt)) {
12253                // Right now we only know how to print all.
12254            } else if ("-h".equals(opt)) {
12255                pw.println("Package manager dump options:");
12256                pw.println("  [-h] [-f] [--checkin] [cmd] ...");
12257                pw.println("    --checkin: dump for a checkin");
12258                pw.println("    -f: print details of intent filters");
12259                pw.println("    -h: print this help");
12260                pw.println("  cmd may be one of:");
12261                pw.println("    l[ibraries]: list known shared libraries");
12262                pw.println("    f[ibraries]: list device features");
12263                pw.println("    k[eysets]: print known keysets");
12264                pw.println("    r[esolvers]: dump intent resolvers");
12265                pw.println("    perm[issions]: dump permissions");
12266                pw.println("    pref[erred]: print preferred package settings");
12267                pw.println("    preferred-xml [--full]: print preferred package settings as xml");
12268                pw.println("    prov[iders]: dump content providers");
12269                pw.println("    p[ackages]: dump installed packages");
12270                pw.println("    s[hared-users]: dump shared user IDs");
12271                pw.println("    m[essages]: print collected runtime messages");
12272                pw.println("    v[erifiers]: print package verifier info");
12273                pw.println("    version: print database version info");
12274                pw.println("    write: write current settings now");
12275                pw.println("    <package.name>: info about given package");
12276                pw.println("    installs: details about install sessions");
12277                return;
12278            } else if ("--checkin".equals(opt)) {
12279                checkin = true;
12280            } else if ("-f".equals(opt)) {
12281                dumpState.setOptionEnabled(DumpState.OPTION_SHOW_FILTERS);
12282            } else {
12283                pw.println("Unknown argument: " + opt + "; use -h for help");
12284            }
12285        }
12286
12287        // Is the caller requesting to dump a particular piece of data?
12288        if (opti < args.length) {
12289            String cmd = args[opti];
12290            opti++;
12291            // Is this a package name?
12292            if ("android".equals(cmd) || cmd.contains(".")) {
12293                packageName = cmd;
12294                // When dumping a single package, we always dump all of its
12295                // filter information since the amount of data will be reasonable.
12296                dumpState.setOptionEnabled(DumpState.OPTION_SHOW_FILTERS);
12297            } else if ("l".equals(cmd) || "libraries".equals(cmd)) {
12298                dumpState.setDump(DumpState.DUMP_LIBS);
12299            } else if ("f".equals(cmd) || "features".equals(cmd)) {
12300                dumpState.setDump(DumpState.DUMP_FEATURES);
12301            } else if ("r".equals(cmd) || "resolvers".equals(cmd)) {
12302                dumpState.setDump(DumpState.DUMP_RESOLVERS);
12303            } else if ("perm".equals(cmd) || "permissions".equals(cmd)) {
12304                dumpState.setDump(DumpState.DUMP_PERMISSIONS);
12305            } else if ("pref".equals(cmd) || "preferred".equals(cmd)) {
12306                dumpState.setDump(DumpState.DUMP_PREFERRED);
12307            } else if ("preferred-xml".equals(cmd)) {
12308                dumpState.setDump(DumpState.DUMP_PREFERRED_XML);
12309                if (opti < args.length && "--full".equals(args[opti])) {
12310                    fullPreferred = true;
12311                    opti++;
12312                }
12313            } else if ("p".equals(cmd) || "packages".equals(cmd)) {
12314                dumpState.setDump(DumpState.DUMP_PACKAGES);
12315            } else if ("s".equals(cmd) || "shared-users".equals(cmd)) {
12316                dumpState.setDump(DumpState.DUMP_SHARED_USERS);
12317            } else if ("prov".equals(cmd) || "providers".equals(cmd)) {
12318                dumpState.setDump(DumpState.DUMP_PROVIDERS);
12319            } else if ("m".equals(cmd) || "messages".equals(cmd)) {
12320                dumpState.setDump(DumpState.DUMP_MESSAGES);
12321            } else if ("v".equals(cmd) || "verifiers".equals(cmd)) {
12322                dumpState.setDump(DumpState.DUMP_VERIFIERS);
12323            } else if ("version".equals(cmd)) {
12324                dumpState.setDump(DumpState.DUMP_VERSION);
12325            } else if ("k".equals(cmd) || "keysets".equals(cmd)) {
12326                dumpState.setDump(DumpState.DUMP_KEYSETS);
12327            } else if ("installs".equals(cmd)) {
12328                dumpState.setDump(DumpState.DUMP_INSTALLS);
12329            } else if ("write".equals(cmd)) {
12330                synchronized (mPackages) {
12331                    mSettings.writeLPr();
12332                    pw.println("Settings written.");
12333                    return;
12334                }
12335            }
12336        }
12337
12338        if (checkin) {
12339            pw.println("vers,1");
12340        }
12341
12342        // reader
12343        synchronized (mPackages) {
12344            if (dumpState.isDumping(DumpState.DUMP_VERSION) && packageName == null) {
12345                if (!checkin) {
12346                    if (dumpState.onTitlePrinted())
12347                        pw.println();
12348                    pw.println("Database versions:");
12349                    pw.print("  SDK Version:");
12350                    pw.print(" internal=");
12351                    pw.print(mSettings.mInternalSdkPlatform);
12352                    pw.print(" external=");
12353                    pw.println(mSettings.mExternalSdkPlatform);
12354                    pw.print("  DB Version:");
12355                    pw.print(" internal=");
12356                    pw.print(mSettings.mInternalDatabaseVersion);
12357                    pw.print(" external=");
12358                    pw.println(mSettings.mExternalDatabaseVersion);
12359                }
12360            }
12361
12362            if (dumpState.isDumping(DumpState.DUMP_VERIFIERS) && packageName == null) {
12363                if (!checkin) {
12364                    if (dumpState.onTitlePrinted())
12365                        pw.println();
12366                    pw.println("Verifiers:");
12367                    pw.print("  Required: ");
12368                    pw.print(mRequiredVerifierPackage);
12369                    pw.print(" (uid=");
12370                    pw.print(getPackageUid(mRequiredVerifierPackage, 0));
12371                    pw.println(")");
12372                } else if (mRequiredVerifierPackage != null) {
12373                    pw.print("vrfy,"); pw.print(mRequiredVerifierPackage);
12374                    pw.print(","); pw.println(getPackageUid(mRequiredVerifierPackage, 0));
12375                }
12376            }
12377
12378            if (dumpState.isDumping(DumpState.DUMP_LIBS) && packageName == null) {
12379                boolean printedHeader = false;
12380                final Iterator<String> it = mSharedLibraries.keySet().iterator();
12381                while (it.hasNext()) {
12382                    String name = it.next();
12383                    SharedLibraryEntry ent = mSharedLibraries.get(name);
12384                    if (!checkin) {
12385                        if (!printedHeader) {
12386                            if (dumpState.onTitlePrinted())
12387                                pw.println();
12388                            pw.println("Libraries:");
12389                            printedHeader = true;
12390                        }
12391                        pw.print("  ");
12392                    } else {
12393                        pw.print("lib,");
12394                    }
12395                    pw.print(name);
12396                    if (!checkin) {
12397                        pw.print(" -> ");
12398                    }
12399                    if (ent.path != null) {
12400                        if (!checkin) {
12401                            pw.print("(jar) ");
12402                            pw.print(ent.path);
12403                        } else {
12404                            pw.print(",jar,");
12405                            pw.print(ent.path);
12406                        }
12407                    } else {
12408                        if (!checkin) {
12409                            pw.print("(apk) ");
12410                            pw.print(ent.apk);
12411                        } else {
12412                            pw.print(",apk,");
12413                            pw.print(ent.apk);
12414                        }
12415                    }
12416                    pw.println();
12417                }
12418            }
12419
12420            if (dumpState.isDumping(DumpState.DUMP_FEATURES) && packageName == null) {
12421                if (dumpState.onTitlePrinted())
12422                    pw.println();
12423                if (!checkin) {
12424                    pw.println("Features:");
12425                }
12426                Iterator<String> it = mAvailableFeatures.keySet().iterator();
12427                while (it.hasNext()) {
12428                    String name = it.next();
12429                    if (!checkin) {
12430                        pw.print("  ");
12431                    } else {
12432                        pw.print("feat,");
12433                    }
12434                    pw.println(name);
12435                }
12436            }
12437
12438            if (!checkin && dumpState.isDumping(DumpState.DUMP_RESOLVERS)) {
12439                if (mActivities.dump(pw, dumpState.getTitlePrinted() ? "\nActivity Resolver Table:"
12440                        : "Activity Resolver Table:", "  ", packageName,
12441                        dumpState.isOptionEnabled(DumpState.OPTION_SHOW_FILTERS), true)) {
12442                    dumpState.setTitlePrinted(true);
12443                }
12444                if (mReceivers.dump(pw, dumpState.getTitlePrinted() ? "\nReceiver Resolver Table:"
12445                        : "Receiver Resolver Table:", "  ", packageName,
12446                        dumpState.isOptionEnabled(DumpState.OPTION_SHOW_FILTERS), true)) {
12447                    dumpState.setTitlePrinted(true);
12448                }
12449                if (mServices.dump(pw, dumpState.getTitlePrinted() ? "\nService Resolver Table:"
12450                        : "Service Resolver Table:", "  ", packageName,
12451                        dumpState.isOptionEnabled(DumpState.OPTION_SHOW_FILTERS), true)) {
12452                    dumpState.setTitlePrinted(true);
12453                }
12454                if (mProviders.dump(pw, dumpState.getTitlePrinted() ? "\nProvider Resolver Table:"
12455                        : "Provider Resolver Table:", "  ", packageName,
12456                        dumpState.isOptionEnabled(DumpState.OPTION_SHOW_FILTERS), true)) {
12457                    dumpState.setTitlePrinted(true);
12458                }
12459            }
12460
12461            if (!checkin && dumpState.isDumping(DumpState.DUMP_PREFERRED)) {
12462                for (int i=0; i<mSettings.mPreferredActivities.size(); i++) {
12463                    PreferredIntentResolver pir = mSettings.mPreferredActivities.valueAt(i);
12464                    int user = mSettings.mPreferredActivities.keyAt(i);
12465                    if (pir.dump(pw,
12466                            dumpState.getTitlePrinted()
12467                                ? "\nPreferred Activities User " + user + ":"
12468                                : "Preferred Activities User " + user + ":", "  ",
12469                            packageName, true, false)) {
12470                        dumpState.setTitlePrinted(true);
12471                    }
12472                }
12473            }
12474
12475            if (!checkin && dumpState.isDumping(DumpState.DUMP_PREFERRED_XML)) {
12476                pw.flush();
12477                FileOutputStream fout = new FileOutputStream(fd);
12478                BufferedOutputStream str = new BufferedOutputStream(fout);
12479                XmlSerializer serializer = new FastXmlSerializer();
12480                try {
12481                    serializer.setOutput(str, "utf-8");
12482                    serializer.startDocument(null, true);
12483                    serializer.setFeature(
12484                            "http://xmlpull.org/v1/doc/features.html#indent-output", true);
12485                    mSettings.writePreferredActivitiesLPr(serializer, 0, fullPreferred);
12486                    serializer.endDocument();
12487                    serializer.flush();
12488                } catch (IllegalArgumentException e) {
12489                    pw.println("Failed writing: " + e);
12490                } catch (IllegalStateException e) {
12491                    pw.println("Failed writing: " + e);
12492                } catch (IOException e) {
12493                    pw.println("Failed writing: " + e);
12494                }
12495            }
12496
12497            if (!checkin && dumpState.isDumping(DumpState.DUMP_PERMISSIONS)) {
12498                mSettings.dumpPermissionsLPr(pw, packageName, dumpState);
12499                if (packageName == null) {
12500                    for (int iperm=0; iperm<mAppOpPermissionPackages.size(); iperm++) {
12501                        if (iperm == 0) {
12502                            if (dumpState.onTitlePrinted())
12503                                pw.println();
12504                            pw.println("AppOp Permissions:");
12505                        }
12506                        pw.print("  AppOp Permission ");
12507                        pw.print(mAppOpPermissionPackages.keyAt(iperm));
12508                        pw.println(":");
12509                        ArraySet<String> pkgs = mAppOpPermissionPackages.valueAt(iperm);
12510                        for (int ipkg=0; ipkg<pkgs.size(); ipkg++) {
12511                            pw.print("    "); pw.println(pkgs.valueAt(ipkg));
12512                        }
12513                    }
12514                }
12515            }
12516
12517            if (!checkin && dumpState.isDumping(DumpState.DUMP_PROVIDERS)) {
12518                boolean printedSomething = false;
12519                for (PackageParser.Provider p : mProviders.mProviders.values()) {
12520                    if (packageName != null && !packageName.equals(p.info.packageName)) {
12521                        continue;
12522                    }
12523                    if (!printedSomething) {
12524                        if (dumpState.onTitlePrinted())
12525                            pw.println();
12526                        pw.println("Registered ContentProviders:");
12527                        printedSomething = true;
12528                    }
12529                    pw.print("  "); p.printComponentShortName(pw); pw.println(":");
12530                    pw.print("    "); pw.println(p.toString());
12531                }
12532                printedSomething = false;
12533                for (Map.Entry<String, PackageParser.Provider> entry :
12534                        mProvidersByAuthority.entrySet()) {
12535                    PackageParser.Provider p = entry.getValue();
12536                    if (packageName != null && !packageName.equals(p.info.packageName)) {
12537                        continue;
12538                    }
12539                    if (!printedSomething) {
12540                        if (dumpState.onTitlePrinted())
12541                            pw.println();
12542                        pw.println("ContentProvider Authorities:");
12543                        printedSomething = true;
12544                    }
12545                    pw.print("  ["); pw.print(entry.getKey()); pw.println("]:");
12546                    pw.print("    "); pw.println(p.toString());
12547                    if (p.info != null && p.info.applicationInfo != null) {
12548                        final String appInfo = p.info.applicationInfo.toString();
12549                        pw.print("      applicationInfo="); pw.println(appInfo);
12550                    }
12551                }
12552            }
12553
12554            if (!checkin && dumpState.isDumping(DumpState.DUMP_KEYSETS)) {
12555                mSettings.mKeySetManagerService.dumpLPr(pw, packageName, dumpState);
12556            }
12557
12558            if (dumpState.isDumping(DumpState.DUMP_PACKAGES)) {
12559                mSettings.dumpPackagesLPr(pw, packageName, dumpState, checkin);
12560            }
12561
12562            if (dumpState.isDumping(DumpState.DUMP_SHARED_USERS)) {
12563                mSettings.dumpSharedUsersLPr(pw, packageName, dumpState, checkin);
12564            }
12565
12566            if (!checkin && dumpState.isDumping(DumpState.DUMP_INSTALLS) && packageName == null) {
12567                // XXX should handle packageName != null by dumping only install data that
12568                // the given package is involved with.
12569                if (dumpState.onTitlePrinted()) pw.println();
12570                mInstallerService.dump(new IndentingPrintWriter(pw, "  ", 120));
12571            }
12572
12573            if (!checkin && dumpState.isDumping(DumpState.DUMP_MESSAGES) && packageName == null) {
12574                if (dumpState.onTitlePrinted()) pw.println();
12575                mSettings.dumpReadMessagesLPr(pw, dumpState);
12576
12577                pw.println();
12578                pw.println("Package warning messages:");
12579                BufferedReader in = null;
12580                String line = null;
12581                try {
12582                    in = new BufferedReader(new FileReader(getSettingsProblemFile()));
12583                    while ((line = in.readLine()) != null) {
12584                        if (line.contains("ignored: updated version")) continue;
12585                        pw.println(line);
12586                    }
12587                } catch (IOException ignored) {
12588                } finally {
12589                    IoUtils.closeQuietly(in);
12590                }
12591            }
12592
12593            if (checkin && dumpState.isDumping(DumpState.DUMP_MESSAGES)) {
12594                BufferedReader in = null;
12595                String line = null;
12596                try {
12597                    in = new BufferedReader(new FileReader(getSettingsProblemFile()));
12598                    while ((line = in.readLine()) != null) {
12599                        if (line.contains("ignored: updated version")) continue;
12600                        pw.print("msg,");
12601                        pw.println(line);
12602                    }
12603                } catch (IOException ignored) {
12604                } finally {
12605                    IoUtils.closeQuietly(in);
12606                }
12607            }
12608        }
12609    }
12610
12611    // ------- apps on sdcard specific code -------
12612    static final boolean DEBUG_SD_INSTALL = false;
12613
12614    private static final String SD_ENCRYPTION_KEYSTORE_NAME = "AppsOnSD";
12615
12616    private static final String SD_ENCRYPTION_ALGORITHM = "AES";
12617
12618    private boolean mMediaMounted = false;
12619
12620    static String getEncryptKey() {
12621        try {
12622            String sdEncKey = SystemKeyStore.getInstance().retrieveKeyHexString(
12623                    SD_ENCRYPTION_KEYSTORE_NAME);
12624            if (sdEncKey == null) {
12625                sdEncKey = SystemKeyStore.getInstance().generateNewKeyHexString(128,
12626                        SD_ENCRYPTION_ALGORITHM, SD_ENCRYPTION_KEYSTORE_NAME);
12627                if (sdEncKey == null) {
12628                    Slog.e(TAG, "Failed to create encryption keys");
12629                    return null;
12630                }
12631            }
12632            return sdEncKey;
12633        } catch (NoSuchAlgorithmException nsae) {
12634            Slog.e(TAG, "Failed to create encryption keys with exception: " + nsae);
12635            return null;
12636        } catch (IOException ioe) {
12637            Slog.e(TAG, "Failed to retrieve encryption keys with exception: " + ioe);
12638            return null;
12639        }
12640    }
12641
12642    /*
12643     * Update media status on PackageManager.
12644     */
12645    @Override
12646    public void updateExternalMediaStatus(final boolean mediaStatus, final boolean reportStatus) {
12647        int callingUid = Binder.getCallingUid();
12648        if (callingUid != 0 && callingUid != Process.SYSTEM_UID) {
12649            throw new SecurityException("Media status can only be updated by the system");
12650        }
12651        // reader; this apparently protects mMediaMounted, but should probably
12652        // be a different lock in that case.
12653        synchronized (mPackages) {
12654            Log.i(TAG, "Updating external media status from "
12655                    + (mMediaMounted ? "mounted" : "unmounted") + " to "
12656                    + (mediaStatus ? "mounted" : "unmounted"));
12657            if (DEBUG_SD_INSTALL)
12658                Log.i(TAG, "updateExternalMediaStatus:: mediaStatus=" + mediaStatus
12659                        + ", mMediaMounted=" + mMediaMounted);
12660            if (mediaStatus == mMediaMounted) {
12661                final Message msg = mHandler.obtainMessage(UPDATED_MEDIA_STATUS, reportStatus ? 1
12662                        : 0, -1);
12663                mHandler.sendMessage(msg);
12664                return;
12665            }
12666            mMediaMounted = mediaStatus;
12667        }
12668        // Queue up an async operation since the package installation may take a
12669        // little while.
12670        mHandler.post(new Runnable() {
12671            public void run() {
12672                updateExternalMediaStatusInner(mediaStatus, reportStatus, true);
12673            }
12674        });
12675    }
12676
12677    /**
12678     * Called by MountService when the initial ASECs to scan are available.
12679     * Should block until all the ASEC containers are finished being scanned.
12680     */
12681    public void scanAvailableAsecs() {
12682        updateExternalMediaStatusInner(true, false, false);
12683        if (mShouldRestoreconData) {
12684            SELinuxMMAC.setRestoreconDone();
12685            mShouldRestoreconData = false;
12686        }
12687    }
12688
12689    /*
12690     * Collect information of applications on external media, map them against
12691     * existing containers and update information based on current mount status.
12692     * Please note that we always have to report status if reportStatus has been
12693     * set to true especially when unloading packages.
12694     */
12695    private void updateExternalMediaStatusInner(boolean isMounted, boolean reportStatus,
12696            boolean externalStorage) {
12697        ArrayMap<AsecInstallArgs, String> processCids = new ArrayMap<>();
12698        int[] uidArr = EmptyArray.INT;
12699
12700        final String[] list = PackageHelper.getSecureContainerList();
12701        if (ArrayUtils.isEmpty(list)) {
12702            Log.i(TAG, "No secure containers found");
12703        } else {
12704            // Process list of secure containers and categorize them
12705            // as active or stale based on their package internal state.
12706
12707            // reader
12708            synchronized (mPackages) {
12709                for (String cid : list) {
12710                    // Leave stages untouched for now; installer service owns them
12711                    if (PackageInstallerService.isStageName(cid)) continue;
12712
12713                    if (DEBUG_SD_INSTALL)
12714                        Log.i(TAG, "Processing container " + cid);
12715                    String pkgName = getAsecPackageName(cid);
12716                    if (pkgName == null) {
12717                        Slog.i(TAG, "Found stale container " + cid + " with no package name");
12718                        continue;
12719                    }
12720                    if (DEBUG_SD_INSTALL)
12721                        Log.i(TAG, "Looking for pkg : " + pkgName);
12722
12723                    final PackageSetting ps = mSettings.mPackages.get(pkgName);
12724                    if (ps == null) {
12725                        Slog.i(TAG, "Found stale container " + cid + " with no matching settings");
12726                        continue;
12727                    }
12728
12729                    /*
12730                     * Skip packages that are not external if we're unmounting
12731                     * external storage.
12732                     */
12733                    if (externalStorage && !isMounted && !isExternal(ps)) {
12734                        continue;
12735                    }
12736
12737                    final AsecInstallArgs args = new AsecInstallArgs(cid,
12738                            getAppDexInstructionSets(ps), ps.isForwardLocked());
12739                    // The package status is changed only if the code path
12740                    // matches between settings and the container id.
12741                    if (ps.codePathString != null
12742                            && ps.codePathString.startsWith(args.getCodePath())) {
12743                        if (DEBUG_SD_INSTALL) {
12744                            Log.i(TAG, "Container : " + cid + " corresponds to pkg : " + pkgName
12745                                    + " at code path: " + ps.codePathString);
12746                        }
12747
12748                        // We do have a valid package installed on sdcard
12749                        processCids.put(args, ps.codePathString);
12750                        final int uid = ps.appId;
12751                        if (uid != -1) {
12752                            uidArr = ArrayUtils.appendInt(uidArr, uid);
12753                        }
12754                    } else {
12755                        Slog.i(TAG, "Found stale container " + cid + ": expected codePath="
12756                                + ps.codePathString);
12757                    }
12758                }
12759            }
12760
12761            Arrays.sort(uidArr);
12762        }
12763
12764        // Process packages with valid entries.
12765        if (isMounted) {
12766            if (DEBUG_SD_INSTALL)
12767                Log.i(TAG, "Loading packages");
12768            loadMediaPackages(processCids, uidArr);
12769            startCleaningPackages();
12770            mInstallerService.onSecureContainersAvailable();
12771        } else {
12772            if (DEBUG_SD_INSTALL)
12773                Log.i(TAG, "Unloading packages");
12774            unloadMediaPackages(processCids, uidArr, reportStatus);
12775        }
12776    }
12777
12778    private void sendResourcesChangedBroadcast(boolean mediaStatus, boolean replacing,
12779            ArrayList<String> pkgList, int uidArr[], IIntentReceiver finishedReceiver) {
12780        int size = pkgList.size();
12781        if (size > 0) {
12782            // Send broadcasts here
12783            Bundle extras = new Bundle();
12784            extras.putStringArray(Intent.EXTRA_CHANGED_PACKAGE_LIST, pkgList
12785                    .toArray(new String[size]));
12786            if (uidArr != null) {
12787                extras.putIntArray(Intent.EXTRA_CHANGED_UID_LIST, uidArr);
12788            }
12789            if (replacing) {
12790                extras.putBoolean(Intent.EXTRA_REPLACING, replacing);
12791            }
12792            String action = mediaStatus ? Intent.ACTION_EXTERNAL_APPLICATIONS_AVAILABLE
12793                    : Intent.ACTION_EXTERNAL_APPLICATIONS_UNAVAILABLE;
12794            sendPackageBroadcast(action, null, extras, null, finishedReceiver, null);
12795        }
12796    }
12797
12798   /*
12799     * Look at potentially valid container ids from processCids If package
12800     * information doesn't match the one on record or package scanning fails,
12801     * the cid is added to list of removeCids. We currently don't delete stale
12802     * containers.
12803     */
12804    private void loadMediaPackages(ArrayMap<AsecInstallArgs, String> processCids, int[] uidArr) {
12805        ArrayList<String> pkgList = new ArrayList<String>();
12806        Set<AsecInstallArgs> keys = processCids.keySet();
12807
12808        for (AsecInstallArgs args : keys) {
12809            String codePath = processCids.get(args);
12810            if (DEBUG_SD_INSTALL)
12811                Log.i(TAG, "Loading container : " + args.cid);
12812            int retCode = PackageManager.INSTALL_FAILED_CONTAINER_ERROR;
12813            try {
12814                // Make sure there are no container errors first.
12815                if (args.doPreInstall(PackageManager.INSTALL_SUCCEEDED) != PackageManager.INSTALL_SUCCEEDED) {
12816                    Slog.e(TAG, "Failed to mount cid : " + args.cid
12817                            + " when installing from sdcard");
12818                    continue;
12819                }
12820                // Check code path here.
12821                if (codePath == null || !codePath.startsWith(args.getCodePath())) {
12822                    Slog.e(TAG, "Container " + args.cid + " cachepath " + args.getCodePath()
12823                            + " does not match one in settings " + codePath);
12824                    continue;
12825                }
12826                // Parse package
12827                int parseFlags = mDefParseFlags;
12828                if (args.isExternal()) {
12829                    parseFlags |= PackageParser.PARSE_ON_SDCARD;
12830                }
12831                if (args.isFwdLocked()) {
12832                    parseFlags |= PackageParser.PARSE_FORWARD_LOCK;
12833                }
12834
12835                synchronized (mInstallLock) {
12836                    PackageParser.Package pkg = null;
12837                    try {
12838                        pkg = scanPackageLI(new File(codePath), parseFlags, 0, 0, null);
12839                    } catch (PackageManagerException e) {
12840                        Slog.w(TAG, "Failed to scan " + codePath + ": " + e.getMessage());
12841                    }
12842                    // Scan the package
12843                    if (pkg != null) {
12844                        /*
12845                         * TODO why is the lock being held? doPostInstall is
12846                         * called in other places without the lock. This needs
12847                         * to be straightened out.
12848                         */
12849                        // writer
12850                        synchronized (mPackages) {
12851                            retCode = PackageManager.INSTALL_SUCCEEDED;
12852                            pkgList.add(pkg.packageName);
12853                            // Post process args
12854                            args.doPostInstall(PackageManager.INSTALL_SUCCEEDED,
12855                                    pkg.applicationInfo.uid);
12856                        }
12857                    } else {
12858                        Slog.i(TAG, "Failed to install pkg from  " + codePath + " from sdcard");
12859                    }
12860                }
12861
12862            } finally {
12863                if (retCode != PackageManager.INSTALL_SUCCEEDED) {
12864                    Log.w(TAG, "Container " + args.cid + " is stale, retCode=" + retCode);
12865                }
12866            }
12867        }
12868        // writer
12869        synchronized (mPackages) {
12870            // If the platform SDK has changed since the last time we booted,
12871            // we need to re-grant app permission to catch any new ones that
12872            // appear. This is really a hack, and means that apps can in some
12873            // cases get permissions that the user didn't initially explicitly
12874            // allow... it would be nice to have some better way to handle
12875            // this situation.
12876            final boolean regrantPermissions = mSettings.mExternalSdkPlatform != mSdkVersion;
12877            if (regrantPermissions)
12878                Slog.i(TAG, "Platform changed from " + mSettings.mExternalSdkPlatform + " to "
12879                        + mSdkVersion + "; regranting permissions for external storage");
12880            mSettings.mExternalSdkPlatform = mSdkVersion;
12881
12882            // Make sure group IDs have been assigned, and any permission
12883            // changes in other apps are accounted for
12884            updatePermissionsLPw(null, null, UPDATE_PERMISSIONS_ALL
12885                    | (regrantPermissions
12886                            ? (UPDATE_PERMISSIONS_REPLACE_PKG|UPDATE_PERMISSIONS_REPLACE_ALL)
12887                            : 0));
12888
12889            mSettings.updateExternalDatabaseVersion();
12890
12891            // can downgrade to reader
12892            // Persist settings
12893            mSettings.writeLPr();
12894        }
12895        // Send a broadcast to let everyone know we are done processing
12896        if (pkgList.size() > 0) {
12897            sendResourcesChangedBroadcast(true, false, pkgList, uidArr, null);
12898        }
12899    }
12900
12901   /*
12902     * Utility method to unload a list of specified containers
12903     */
12904    private void unloadAllContainers(Set<AsecInstallArgs> cidArgs) {
12905        // Just unmount all valid containers.
12906        for (AsecInstallArgs arg : cidArgs) {
12907            synchronized (mInstallLock) {
12908                arg.doPostDeleteLI(false);
12909           }
12910       }
12911   }
12912
12913    /*
12914     * Unload packages mounted on external media. This involves deleting package
12915     * data from internal structures, sending broadcasts about diabled packages,
12916     * gc'ing to free up references, unmounting all secure containers
12917     * corresponding to packages on external media, and posting a
12918     * UPDATED_MEDIA_STATUS message if status has been requested. Please note
12919     * that we always have to post this message if status has been requested no
12920     * matter what.
12921     */
12922    private void unloadMediaPackages(ArrayMap<AsecInstallArgs, String> processCids, int uidArr[],
12923            final boolean reportStatus) {
12924        if (DEBUG_SD_INSTALL)
12925            Log.i(TAG, "unloading media packages");
12926        ArrayList<String> pkgList = new ArrayList<String>();
12927        ArrayList<AsecInstallArgs> failedList = new ArrayList<AsecInstallArgs>();
12928        final Set<AsecInstallArgs> keys = processCids.keySet();
12929        for (AsecInstallArgs args : keys) {
12930            String pkgName = args.getPackageName();
12931            if (DEBUG_SD_INSTALL)
12932                Log.i(TAG, "Trying to unload pkg : " + pkgName);
12933            // Delete package internally
12934            PackageRemovedInfo outInfo = new PackageRemovedInfo();
12935            synchronized (mInstallLock) {
12936                boolean res = deletePackageLI(pkgName, null, false, null, null,
12937                        PackageManager.DELETE_KEEP_DATA, outInfo, false);
12938                if (res) {
12939                    pkgList.add(pkgName);
12940                } else {
12941                    Slog.e(TAG, "Failed to delete pkg from sdcard : " + pkgName);
12942                    failedList.add(args);
12943                }
12944            }
12945        }
12946
12947        // reader
12948        synchronized (mPackages) {
12949            // We didn't update the settings after removing each package;
12950            // write them now for all packages.
12951            mSettings.writeLPr();
12952        }
12953
12954        // We have to absolutely send UPDATED_MEDIA_STATUS only
12955        // after confirming that all the receivers processed the ordered
12956        // broadcast when packages get disabled, force a gc to clean things up.
12957        // and unload all the containers.
12958        if (pkgList.size() > 0) {
12959            sendResourcesChangedBroadcast(false, false, pkgList, uidArr,
12960                    new IIntentReceiver.Stub() {
12961                public void performReceive(Intent intent, int resultCode, String data,
12962                        Bundle extras, boolean ordered, boolean sticky,
12963                        int sendingUser) throws RemoteException {
12964                    Message msg = mHandler.obtainMessage(UPDATED_MEDIA_STATUS,
12965                            reportStatus ? 1 : 0, 1, keys);
12966                    mHandler.sendMessage(msg);
12967                }
12968            });
12969        } else {
12970            Message msg = mHandler.obtainMessage(UPDATED_MEDIA_STATUS, reportStatus ? 1 : 0, -1,
12971                    keys);
12972            mHandler.sendMessage(msg);
12973        }
12974    }
12975
12976    /** Binder call */
12977    @Override
12978    public void movePackage(final String packageName, final IPackageMoveObserver observer,
12979            final int flags) {
12980        mContext.enforceCallingOrSelfPermission(android.Manifest.permission.MOVE_PACKAGE, null);
12981        UserHandle user = new UserHandle(UserHandle.getCallingUserId());
12982        int returnCode = PackageManager.MOVE_SUCCEEDED;
12983        int currInstallFlags = 0;
12984        int newInstallFlags = 0;
12985
12986        File codeFile = null;
12987        String installerPackageName = null;
12988        String packageAbiOverride = null;
12989
12990        // reader
12991        synchronized (mPackages) {
12992            final PackageParser.Package pkg = mPackages.get(packageName);
12993            final PackageSetting ps = mSettings.mPackages.get(packageName);
12994            if (pkg == null || ps == null) {
12995                returnCode = PackageManager.MOVE_FAILED_DOESNT_EXIST;
12996            } else {
12997                // Disable moving fwd locked apps and system packages
12998                if (pkg.applicationInfo != null && isSystemApp(pkg)) {
12999                    Slog.w(TAG, "Cannot move system application");
13000                    returnCode = PackageManager.MOVE_FAILED_SYSTEM_PACKAGE;
13001                } else if (pkg.mOperationPending) {
13002                    Slog.w(TAG, "Attempt to move package which has pending operations");
13003                    returnCode = PackageManager.MOVE_FAILED_OPERATION_PENDING;
13004                } else {
13005                    // Find install location first
13006                    if ((flags & PackageManager.MOVE_EXTERNAL_MEDIA) != 0
13007                            && (flags & PackageManager.MOVE_INTERNAL) != 0) {
13008                        Slog.w(TAG, "Ambigous flags specified for move location.");
13009                        returnCode = PackageManager.MOVE_FAILED_INVALID_LOCATION;
13010                    } else {
13011                        newInstallFlags = (flags & PackageManager.MOVE_EXTERNAL_MEDIA) != 0
13012                                ? PackageManager.INSTALL_EXTERNAL : PackageManager.INSTALL_INTERNAL;
13013                        currInstallFlags = isExternal(pkg)
13014                                ? PackageManager.INSTALL_EXTERNAL : PackageManager.INSTALL_INTERNAL;
13015
13016                        if (newInstallFlags == currInstallFlags) {
13017                            Slog.w(TAG, "No move required. Trying to move to same location");
13018                            returnCode = PackageManager.MOVE_FAILED_INVALID_LOCATION;
13019                        } else {
13020                            if (pkg.isForwardLocked()) {
13021                                currInstallFlags |= PackageManager.INSTALL_FORWARD_LOCK;
13022                                newInstallFlags |= PackageManager.INSTALL_FORWARD_LOCK;
13023                            }
13024                        }
13025                    }
13026                    if (returnCode == PackageManager.MOVE_SUCCEEDED) {
13027                        pkg.mOperationPending = true;
13028                    }
13029                }
13030
13031                codeFile = new File(pkg.codePath);
13032                installerPackageName = ps.installerPackageName;
13033                packageAbiOverride = ps.cpuAbiOverrideString;
13034            }
13035        }
13036
13037        if (returnCode != PackageManager.MOVE_SUCCEEDED) {
13038            try {
13039                observer.packageMoved(packageName, returnCode);
13040            } catch (RemoteException ignored) {
13041            }
13042            return;
13043        }
13044
13045        final IPackageInstallObserver2 installObserver = new IPackageInstallObserver2.Stub() {
13046            @Override
13047            public void onUserActionRequired(Intent intent) throws RemoteException {
13048                throw new IllegalStateException();
13049            }
13050
13051            @Override
13052            public void onPackageInstalled(String basePackageName, int returnCode, String msg,
13053                    Bundle extras) throws RemoteException {
13054                Slog.d(TAG, "Install result for move: "
13055                        + PackageManager.installStatusToString(returnCode, msg));
13056
13057                // We usually have a new package now after the install, but if
13058                // we failed we need to clear the pending flag on the original
13059                // package object.
13060                synchronized (mPackages) {
13061                    final PackageParser.Package pkg = mPackages.get(packageName);
13062                    if (pkg != null) {
13063                        pkg.mOperationPending = false;
13064                    }
13065                }
13066
13067                final int status = PackageManager.installStatusToPublicStatus(returnCode);
13068                switch (status) {
13069                    case PackageInstaller.STATUS_SUCCESS:
13070                        observer.packageMoved(packageName, PackageManager.MOVE_SUCCEEDED);
13071                        break;
13072                    case PackageInstaller.STATUS_FAILURE_STORAGE:
13073                        observer.packageMoved(packageName, PackageManager.MOVE_FAILED_INSUFFICIENT_STORAGE);
13074                        break;
13075                    default:
13076                        observer.packageMoved(packageName, PackageManager.MOVE_FAILED_INTERNAL_ERROR);
13077                        break;
13078                }
13079            }
13080        };
13081
13082        // Treat a move like reinstalling an existing app, which ensures that we
13083        // process everythign uniformly, like unpacking native libraries.
13084        newInstallFlags |= PackageManager.INSTALL_REPLACE_EXISTING;
13085
13086        final Message msg = mHandler.obtainMessage(INIT_COPY);
13087        final OriginInfo origin = OriginInfo.fromExistingFile(codeFile);
13088        msg.obj = new InstallParams(origin, installObserver, newInstallFlags,
13089                installerPackageName, null, user, packageAbiOverride);
13090        mHandler.sendMessage(msg);
13091    }
13092
13093    @Override
13094    public boolean setInstallLocation(int loc) {
13095        mContext.enforceCallingOrSelfPermission(android.Manifest.permission.WRITE_SECURE_SETTINGS,
13096                null);
13097        if (getInstallLocation() == loc) {
13098            return true;
13099        }
13100        if (loc == PackageHelper.APP_INSTALL_AUTO || loc == PackageHelper.APP_INSTALL_INTERNAL
13101                || loc == PackageHelper.APP_INSTALL_EXTERNAL) {
13102            android.provider.Settings.Global.putInt(mContext.getContentResolver(),
13103                    android.provider.Settings.Global.DEFAULT_INSTALL_LOCATION, loc);
13104            return true;
13105        }
13106        return false;
13107   }
13108
13109    @Override
13110    public int getInstallLocation() {
13111        return android.provider.Settings.Global.getInt(mContext.getContentResolver(),
13112                android.provider.Settings.Global.DEFAULT_INSTALL_LOCATION,
13113                PackageHelper.APP_INSTALL_AUTO);
13114    }
13115
13116    /** Called by UserManagerService */
13117    void cleanUpUserLILPw(UserManagerService userManager, int userHandle) {
13118        mDirtyUsers.remove(userHandle);
13119        mSettings.removeUserLPw(userHandle);
13120        mPendingBroadcasts.remove(userHandle);
13121        if (mInstaller != null) {
13122            // Technically, we shouldn't be doing this with the package lock
13123            // held.  However, this is very rare, and there is already so much
13124            // other disk I/O going on, that we'll let it slide for now.
13125            mInstaller.removeUserDataDirs(userHandle);
13126        }
13127        mUserNeedsBadging.delete(userHandle);
13128        removeUnusedPackagesLILPw(userManager, userHandle);
13129    }
13130
13131    /**
13132     * We're removing userHandle and would like to remove any downloaded packages
13133     * that are no longer in use by any other user.
13134     * @param userHandle the user being removed
13135     */
13136    private void removeUnusedPackagesLILPw(UserManagerService userManager, final int userHandle) {
13137        final boolean DEBUG_CLEAN_APKS = false;
13138        int [] users = userManager.getUserIdsLPr();
13139        Iterator<PackageSetting> psit = mSettings.mPackages.values().iterator();
13140        while (psit.hasNext()) {
13141            PackageSetting ps = psit.next();
13142            if (ps.pkg == null) {
13143                continue;
13144            }
13145            final String packageName = ps.pkg.packageName;
13146            // Skip over if system app
13147            if ((ps.pkgFlags & ApplicationInfo.FLAG_SYSTEM) != 0) {
13148                continue;
13149            }
13150            if (DEBUG_CLEAN_APKS) {
13151                Slog.i(TAG, "Checking package " + packageName);
13152            }
13153            boolean keep = false;
13154            for (int i = 0; i < users.length; i++) {
13155                if (users[i] != userHandle && ps.getInstalled(users[i])) {
13156                    keep = true;
13157                    if (DEBUG_CLEAN_APKS) {
13158                        Slog.i(TAG, "  Keeping package " + packageName + " for user "
13159                                + users[i]);
13160                    }
13161                    break;
13162                }
13163            }
13164            if (!keep) {
13165                if (DEBUG_CLEAN_APKS) {
13166                    Slog.i(TAG, "  Removing package " + packageName);
13167                }
13168                mHandler.post(new Runnable() {
13169                    public void run() {
13170                        deletePackageX(packageName, userHandle, 0);
13171                    } //end run
13172                });
13173            }
13174        }
13175    }
13176
13177    /** Called by UserManagerService */
13178    void createNewUserLILPw(int userHandle, File path) {
13179        if (mInstaller != null) {
13180            mInstaller.createUserConfig(userHandle);
13181            mSettings.createNewUserLILPw(this, mInstaller, userHandle, path);
13182        }
13183    }
13184
13185    @Override
13186    public VerifierDeviceIdentity getVerifierDeviceIdentity() throws RemoteException {
13187        mContext.enforceCallingOrSelfPermission(
13188                android.Manifest.permission.PACKAGE_VERIFICATION_AGENT,
13189                "Only package verification agents can read the verifier device identity");
13190
13191        synchronized (mPackages) {
13192            return mSettings.getVerifierDeviceIdentityLPw();
13193        }
13194    }
13195
13196    @Override
13197    public void setPermissionEnforced(String permission, boolean enforced) {
13198        mContext.enforceCallingOrSelfPermission(GRANT_REVOKE_PERMISSIONS, null);
13199        if (READ_EXTERNAL_STORAGE.equals(permission)) {
13200            synchronized (mPackages) {
13201                if (mSettings.mReadExternalStorageEnforced == null
13202                        || mSettings.mReadExternalStorageEnforced != enforced) {
13203                    mSettings.mReadExternalStorageEnforced = enforced;
13204                    mSettings.writeLPr();
13205                }
13206            }
13207            // kill any non-foreground processes so we restart them and
13208            // grant/revoke the GID.
13209            final IActivityManager am = ActivityManagerNative.getDefault();
13210            if (am != null) {
13211                final long token = Binder.clearCallingIdentity();
13212                try {
13213                    am.killProcessesBelowForeground("setPermissionEnforcement");
13214                } catch (RemoteException e) {
13215                } finally {
13216                    Binder.restoreCallingIdentity(token);
13217                }
13218            }
13219        } else {
13220            throw new IllegalArgumentException("No selective enforcement for " + permission);
13221        }
13222    }
13223
13224    @Override
13225    @Deprecated
13226    public boolean isPermissionEnforced(String permission) {
13227        return true;
13228    }
13229
13230    @Override
13231    public boolean isStorageLow() {
13232        final long token = Binder.clearCallingIdentity();
13233        try {
13234            final DeviceStorageMonitorInternal
13235                    dsm = LocalServices.getService(DeviceStorageMonitorInternal.class);
13236            if (dsm != null) {
13237                return dsm.isMemoryLow();
13238            } else {
13239                return false;
13240            }
13241        } finally {
13242            Binder.restoreCallingIdentity(token);
13243        }
13244    }
13245
13246    @Override
13247    public IPackageInstaller getPackageInstaller() {
13248        return mInstallerService;
13249    }
13250
13251    private boolean userNeedsBadging(int userId) {
13252        int index = mUserNeedsBadging.indexOfKey(userId);
13253        if (index < 0) {
13254            final UserInfo userInfo;
13255            final long token = Binder.clearCallingIdentity();
13256            try {
13257                userInfo = sUserManager.getUserInfo(userId);
13258            } finally {
13259                Binder.restoreCallingIdentity(token);
13260            }
13261            final boolean b;
13262            if (userInfo != null && userInfo.isManagedProfile()) {
13263                b = true;
13264            } else {
13265                b = false;
13266            }
13267            mUserNeedsBadging.put(userId, b);
13268            return b;
13269        }
13270        return mUserNeedsBadging.valueAt(index);
13271    }
13272
13273    @Override
13274    public KeySet getKeySetByAlias(String packageName, String alias) {
13275        if (packageName == null || alias == null) {
13276            return null;
13277        }
13278        synchronized(mPackages) {
13279            final PackageParser.Package pkg = mPackages.get(packageName);
13280            if (pkg == null) {
13281                Slog.w(TAG, "KeySet requested for unknown package:" + packageName);
13282                throw new IllegalArgumentException("Unknown package: " + packageName);
13283            }
13284            KeySetManagerService ksms = mSettings.mKeySetManagerService;
13285            return new KeySet(ksms.getKeySetByAliasAndPackageNameLPr(packageName, alias));
13286        }
13287    }
13288
13289    @Override
13290    public KeySet getSigningKeySet(String packageName) {
13291        if (packageName == null) {
13292            return null;
13293        }
13294        synchronized(mPackages) {
13295            final PackageParser.Package pkg = mPackages.get(packageName);
13296            if (pkg == null) {
13297                Slog.w(TAG, "KeySet requested for unknown package:" + packageName);
13298                throw new IllegalArgumentException("Unknown package: " + packageName);
13299            }
13300            if (pkg.applicationInfo.uid != Binder.getCallingUid()
13301                    && Process.SYSTEM_UID != Binder.getCallingUid()) {
13302                throw new SecurityException("May not access signing KeySet of other apps.");
13303            }
13304            KeySetManagerService ksms = mSettings.mKeySetManagerService;
13305            return new KeySet(ksms.getSigningKeySetByPackageNameLPr(packageName));
13306        }
13307    }
13308
13309    @Override
13310    public boolean isPackageSignedByKeySet(String packageName, KeySet ks) {
13311        if (packageName == null || ks == null) {
13312            return false;
13313        }
13314        synchronized(mPackages) {
13315            final PackageParser.Package pkg = mPackages.get(packageName);
13316            if (pkg == null) {
13317                Slog.w(TAG, "KeySet requested for unknown package:" + packageName);
13318                throw new IllegalArgumentException("Unknown package: " + packageName);
13319            }
13320            IBinder ksh = ks.getToken();
13321            if (ksh instanceof KeySetHandle) {
13322                KeySetManagerService ksms = mSettings.mKeySetManagerService;
13323                return ksms.packageIsSignedByLPr(packageName, (KeySetHandle) ksh);
13324            }
13325            return false;
13326        }
13327    }
13328
13329    @Override
13330    public boolean isPackageSignedByKeySetExactly(String packageName, KeySet ks) {
13331        if (packageName == null || ks == null) {
13332            return false;
13333        }
13334        synchronized(mPackages) {
13335            final PackageParser.Package pkg = mPackages.get(packageName);
13336            if (pkg == null) {
13337                Slog.w(TAG, "KeySet requested for unknown package:" + packageName);
13338                throw new IllegalArgumentException("Unknown package: " + packageName);
13339            }
13340            IBinder ksh = ks.getToken();
13341            if (ksh instanceof KeySetHandle) {
13342                KeySetManagerService ksms = mSettings.mKeySetManagerService;
13343                return ksms.packageIsSignedByExactlyLPr(packageName, (KeySetHandle) ksh);
13344            }
13345            return false;
13346        }
13347    }
13348
13349    public void getUsageStatsIfNoPackageUsageInfo() {
13350        if (!mPackageUsage.isHistoricalPackageUsageAvailable()) {
13351            UsageStatsManager usm = (UsageStatsManager) mContext.getSystemService(Context.USAGE_STATS_SERVICE);
13352            if (usm == null) {
13353                throw new IllegalStateException("UsageStatsManager must be initialized");
13354            }
13355            long now = System.currentTimeMillis();
13356            Map<String, UsageStats> stats = usm.queryAndAggregateUsageStats(now - mDexOptLRUThresholdInMills, now);
13357            for (Map.Entry<String, UsageStats> entry : stats.entrySet()) {
13358                String packageName = entry.getKey();
13359                PackageParser.Package pkg = mPackages.get(packageName);
13360                if (pkg == null) {
13361                    continue;
13362                }
13363                UsageStats usage = entry.getValue();
13364                pkg.mLastPackageUsageTimeInMills = usage.getLastTimeUsed();
13365                mPackageUsage.mIsHistoricalPackageUsageAvailable = true;
13366            }
13367        }
13368    }
13369
13370    /**
13371     * Check and throw if the given before/after packages would be considered a
13372     * downgrade.
13373     */
13374    private static void checkDowngrade(PackageParser.Package before, PackageInfoLite after)
13375            throws PackageManagerException {
13376        if (after.versionCode < before.mVersionCode) {
13377            throw new PackageManagerException(INSTALL_FAILED_VERSION_DOWNGRADE,
13378                    "Update version code " + after.versionCode + " is older than current "
13379                    + before.mVersionCode);
13380        } else if (after.versionCode == before.mVersionCode) {
13381            if (after.baseRevisionCode < before.baseRevisionCode) {
13382                throw new PackageManagerException(INSTALL_FAILED_VERSION_DOWNGRADE,
13383                        "Update base revision code " + after.baseRevisionCode
13384                        + " is older than current " + before.baseRevisionCode);
13385            }
13386
13387            if (!ArrayUtils.isEmpty(after.splitNames)) {
13388                for (int i = 0; i < after.splitNames.length; i++) {
13389                    final String splitName = after.splitNames[i];
13390                    final int j = ArrayUtils.indexOf(before.splitNames, splitName);
13391                    if (j != -1) {
13392                        if (after.splitRevisionCodes[i] < before.splitRevisionCodes[j]) {
13393                            throw new PackageManagerException(INSTALL_FAILED_VERSION_DOWNGRADE,
13394                                    "Update split " + splitName + " revision code "
13395                                    + after.splitRevisionCodes[i] + " is older than current "
13396                                    + before.splitRevisionCodes[j]);
13397                        }
13398                    }
13399                }
13400            }
13401        }
13402    }
13403}
13404