PackageManagerService.java revision b94c1657eb0140f7b91f5372a9f76de5a3d87e36 
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
278    static final int REMOVE_CHATTY = 1<<16;
279
280    /**
281     * Timeout (in milliseconds) after which the watchdog should declare that
282     * our handler thread is wedged.  The usual default for such things is one
283     * minute but we sometimes do very lengthy I/O operations on this thread,
284     * such as installing multi-gigabyte applications, so ours needs to be longer.
285     */
286    private static final long WATCHDOG_TIMEOUT = 1000*60*10;     // ten minutes
287
288    /**
289     * Wall-clock timeout (in milliseconds) after which we *require* that an fstrim
290     * be run on this device.  We use the value in the Settings.Global.MANDATORY_FSTRIM_INTERVAL
291     * settings entry if available, otherwise we use the hardcoded default.  If it's been
292     * more than this long since the last fstrim, we force one during the boot sequence.
293     *
294     * This backstops other fstrim scheduling:  if the device is alive at midnight+idle,
295     * one gets run at the next available charging+idle time.  This final mandatory
296     * no-fstrim check kicks in only of the other scheduling criteria is never met.
297     */
298    private static final long DEFAULT_MANDATORY_FSTRIM_INTERVAL = 3 * DateUtils.DAY_IN_MILLIS;
299
300    /**
301     * Whether verification is enabled by default.
302     */
303    private static final boolean DEFAULT_VERIFY_ENABLE = true;
304
305    /**
306     * The default maximum time to wait for the verification agent to return in
307     * milliseconds.
308     */
309    private static final long DEFAULT_VERIFICATION_TIMEOUT = 10 * 1000;
310
311    /**
312     * The default response for package verification timeout.
313     *
314     * This can be either PackageManager.VERIFICATION_ALLOW or
315     * PackageManager.VERIFICATION_REJECT.
316     */
317    private static final int DEFAULT_VERIFICATION_RESPONSE = PackageManager.VERIFICATION_ALLOW;
318
319    static final String DEFAULT_CONTAINER_PACKAGE = "com.android.defcontainer";
320
321    static final ComponentName DEFAULT_CONTAINER_COMPONENT = new ComponentName(
322            DEFAULT_CONTAINER_PACKAGE,
323            "com.android.defcontainer.DefaultContainerService");
324
325    private static final String PACKAGE_MIME_TYPE = "application/vnd.android.package-archive";
326
327    private static final String VENDOR_OVERLAY_DIR = "/vendor/overlay";
328
329    final ServiceThread mHandlerThread;
330
331    final PackageHandler mHandler;
332
333    /**
334     * Messages for {@link #mHandler} that need to wait for system ready before
335     * being dispatched.
336     */
337    private ArrayList<Message> mPostSystemReadyMessages;
338
339    final int mSdkVersion = Build.VERSION.SDK_INT;
340
341    final Context mContext;
342    final boolean mFactoryTest;
343    final boolean mOnlyCore;
344    final boolean mLazyDexOpt;
345    final long mDexOptLRUThresholdInMills;
346    final DisplayMetrics mMetrics;
347    final int mDefParseFlags;
348    final String[] mSeparateProcesses;
349    final boolean mIsUpgrade;
350
351    // This is where all application persistent data goes.
352    final File mAppDataDir;
353
354    // This is where all application persistent data goes for secondary users.
355    final File mUserAppDataDir;
356
357    /** The location for ASEC container files on internal storage. */
358    final String mAsecInternalPath;
359
360    // Used for privilege escalation. MUST NOT BE CALLED WITH mPackages
361    // LOCK HELD.  Can be called with mInstallLock held.
362    final Installer mInstaller;
363
364    /** Directory where installed third-party apps stored */
365    final File mAppInstallDir;
366
367    /**
368     * Directory to which applications installed internally have their
369     * 32 bit native libraries copied.
370     */
371    private File mAppLib32InstallDir;
372
373    // Directory containing the private parts (e.g. code and non-resource assets) of forward-locked
374    // apps.
375    final File mDrmAppPrivateInstallDir;
376
377    // ----------------------------------------------------------------
378
379    // Lock for state used when installing and doing other long running
380    // operations.  Methods that must be called with this lock held have
381    // the suffix "LI".
382    final Object mInstallLock = new Object();
383
384    // ----------------------------------------------------------------
385
386    // Keys are String (package name), values are Package.  This also serves
387    // as the lock for the global state.  Methods that must be called with
388    // this lock held have the prefix "LP".
389    final ArrayMap<String, PackageParser.Package> mPackages =
390            new ArrayMap<String, PackageParser.Package>();
391
392    // Tracks available target package names -> overlay package paths.
393    final ArrayMap<String, ArrayMap<String, PackageParser.Package>> mOverlays =
394        new ArrayMap<String, ArrayMap<String, PackageParser.Package>>();
395
396    final Settings mSettings;
397    boolean mRestoredSettings;
398
399    // System configuration read by SystemConfig.
400    final int[] mGlobalGids;
401    final SparseArray<ArraySet<String>> mSystemPermissions;
402    final ArrayMap<String, FeatureInfo> mAvailableFeatures;
403
404    // If mac_permissions.xml was found for seinfo labeling.
405    boolean mFoundPolicyFile;
406
407    // If a recursive restorecon of /data/data/<pkg> is needed.
408    private boolean mShouldRestoreconData = SELinuxMMAC.shouldRestorecon();
409
410    public static final class SharedLibraryEntry {
411        public final String path;
412        public final String apk;
413
414        SharedLibraryEntry(String _path, String _apk) {
415            path = _path;
416            apk = _apk;
417        }
418    }
419
420    // Currently known shared libraries.
421    final ArrayMap<String, SharedLibraryEntry> mSharedLibraries =
422            new ArrayMap<String, SharedLibraryEntry>();
423
424    // All available activities, for your resolving pleasure.
425    final ActivityIntentResolver mActivities =
426            new ActivityIntentResolver();
427
428    // All available receivers, for your resolving pleasure.
429    final ActivityIntentResolver mReceivers =
430            new ActivityIntentResolver();
431
432    // All available services, for your resolving pleasure.
433    final ServiceIntentResolver mServices = new ServiceIntentResolver();
434
435    // All available providers, for your resolving pleasure.
436    final ProviderIntentResolver mProviders = new ProviderIntentResolver();
437
438    // Mapping from provider base names (first directory in content URI codePath)
439    // to the provider information.
440    final ArrayMap<String, PackageParser.Provider> mProvidersByAuthority =
441            new ArrayMap<String, PackageParser.Provider>();
442
443    // Mapping from instrumentation class names to info about them.
444    final ArrayMap<ComponentName, PackageParser.Instrumentation> mInstrumentation =
445            new ArrayMap<ComponentName, PackageParser.Instrumentation>();
446
447    // Mapping from permission names to info about them.
448    final ArrayMap<String, PackageParser.PermissionGroup> mPermissionGroups =
449            new ArrayMap<String, PackageParser.PermissionGroup>();
450
451    // Packages whose data we have transfered into another package, thus
452    // should no longer exist.
453    final ArraySet<String> mTransferedPackages = new ArraySet<String>();
454
455    // Broadcast actions that are only available to the system.
456    final ArraySet<String> mProtectedBroadcasts = new ArraySet<String>();
457
458    /** List of packages waiting for verification. */
459    final SparseArray<PackageVerificationState> mPendingVerification
460            = new SparseArray<PackageVerificationState>();
461
462    /** Set of packages associated with each app op permission. */
463    final ArrayMap<String, ArraySet<String>> mAppOpPermissionPackages = new ArrayMap<>();
464
465    final PackageInstallerService mInstallerService;
466
467    private final PackageDexOptimizer mPackageDexOptimizer;
468    // Cache of users who need badging.
469    SparseBooleanArray mUserNeedsBadging = new SparseBooleanArray();
470
471    /** Token for keys in mPendingVerification. */
472    private int mPendingVerificationToken = 0;
473
474    volatile boolean mSystemReady;
475    volatile boolean mSafeMode;
476    volatile boolean mHasSystemUidErrors;
477
478    ApplicationInfo mAndroidApplication;
479    final ActivityInfo mResolveActivity = new ActivityInfo();
480    final ResolveInfo mResolveInfo = new ResolveInfo();
481    ComponentName mResolveComponentName;
482    PackageParser.Package mPlatformPackage;
483    ComponentName mCustomResolverComponentName;
484
485    boolean mResolverReplaced = false;
486
487    // Set of pending broadcasts for aggregating enable/disable of components.
488    static class PendingPackageBroadcasts {
489        // for each user id, a map of <package name -> components within that package>
490        final SparseArray<ArrayMap<String, ArrayList<String>>> mUidMap;
491
492        public PendingPackageBroadcasts() {
493            mUidMap = new SparseArray<ArrayMap<String, ArrayList<String>>>(2);
494        }
495
496        public ArrayList<String> get(int userId, String packageName) {
497            ArrayMap<String, ArrayList<String>> packages = getOrAllocate(userId);
498            return packages.get(packageName);
499        }
500
501        public void put(int userId, String packageName, ArrayList<String> components) {
502            ArrayMap<String, ArrayList<String>> packages = getOrAllocate(userId);
503            packages.put(packageName, components);
504        }
505
506        public void remove(int userId, String packageName) {
507            ArrayMap<String, ArrayList<String>> packages = mUidMap.get(userId);
508            if (packages != null) {
509                packages.remove(packageName);
510            }
511        }
512
513        public void remove(int userId) {
514            mUidMap.remove(userId);
515        }
516
517        public int userIdCount() {
518            return mUidMap.size();
519        }
520
521        public int userIdAt(int n) {
522            return mUidMap.keyAt(n);
523        }
524
525        public ArrayMap<String, ArrayList<String>> packagesForUserId(int userId) {
526            return mUidMap.get(userId);
527        }
528
529        public int size() {
530            // total number of pending broadcast entries across all userIds
531            int num = 0;
532            for (int i = 0; i< mUidMap.size(); i++) {
533                num += mUidMap.valueAt(i).size();
534            }
535            return num;
536        }
537
538        public void clear() {
539            mUidMap.clear();
540        }
541
542        private ArrayMap<String, ArrayList<String>> getOrAllocate(int userId) {
543            ArrayMap<String, ArrayList<String>> map = mUidMap.get(userId);
544            if (map == null) {
545                map = new ArrayMap<String, ArrayList<String>>();
546                mUidMap.put(userId, map);
547            }
548            return map;
549        }
550    }
551    final PendingPackageBroadcasts mPendingBroadcasts = new PendingPackageBroadcasts();
552
553    // Service Connection to remote media container service to copy
554    // package uri's from external media onto secure containers
555    // or internal storage.
556    private IMediaContainerService mContainerService = null;
557
558    static final int SEND_PENDING_BROADCAST = 1;
559    static final int MCS_BOUND = 3;
560    static final int END_COPY = 4;
561    static final int INIT_COPY = 5;
562    static final int MCS_UNBIND = 6;
563    static final int START_CLEANING_PACKAGE = 7;
564    static final int FIND_INSTALL_LOC = 8;
565    static final int POST_INSTALL = 9;
566    static final int MCS_RECONNECT = 10;
567    static final int MCS_GIVE_UP = 11;
568    static final int UPDATED_MEDIA_STATUS = 12;
569    static final int WRITE_SETTINGS = 13;
570    static final int WRITE_PACKAGE_RESTRICTIONS = 14;
571    static final int PACKAGE_VERIFIED = 15;
572    static final int CHECK_PENDING_VERIFICATION = 16;
573
574    static final int WRITE_SETTINGS_DELAY = 10*1000;  // 10 seconds
575
576    // Delay time in millisecs
577    static final int BROADCAST_DELAY = 10 * 1000;
578
579    static UserManagerService sUserManager;
580
581    // Stores a list of users whose package restrictions file needs to be updated
582    private ArraySet<Integer> mDirtyUsers = new ArraySet<Integer>();
583
584    final private DefaultContainerConnection mDefContainerConn =
585            new DefaultContainerConnection();
586    class DefaultContainerConnection implements ServiceConnection {
587        public void onServiceConnected(ComponentName name, IBinder service) {
588            if (DEBUG_SD_INSTALL) Log.i(TAG, "onServiceConnected");
589            IMediaContainerService imcs =
590                IMediaContainerService.Stub.asInterface(service);
591            mHandler.sendMessage(mHandler.obtainMessage(MCS_BOUND, imcs));
592        }
593
594        public void onServiceDisconnected(ComponentName name) {
595            if (DEBUG_SD_INSTALL) Log.i(TAG, "onServiceDisconnected");
596        }
597    };
598
599    // Recordkeeping of restore-after-install operations that are currently in flight
600    // between the Package Manager and the Backup Manager
601    class PostInstallData {
602        public InstallArgs args;
603        public PackageInstalledInfo res;
604
605        PostInstallData(InstallArgs _a, PackageInstalledInfo _r) {
606            args = _a;
607            res = _r;
608        }
609    };
610    final SparseArray<PostInstallData> mRunningInstalls = new SparseArray<PostInstallData>();
611    int mNextInstallToken = 1;  // nonzero; will be wrapped back to 1 when ++ overflows
612
613    private final String mRequiredVerifierPackage;
614
615    private final PackageUsage mPackageUsage = new PackageUsage();
616
617    private class PackageUsage {
618        private static final int WRITE_INTERVAL
619            = (DEBUG_DEXOPT) ? 0 : 30*60*1000; // 30m in ms
620
621        private final Object mFileLock = new Object();
622        private final AtomicLong mLastWritten = new AtomicLong(0);
623        private final AtomicBoolean mBackgroundWriteRunning = new AtomicBoolean(false);
624
625        private boolean mIsHistoricalPackageUsageAvailable = true;
626
627        boolean isHistoricalPackageUsageAvailable() {
628            return mIsHistoricalPackageUsageAvailable;
629        }
630
631        void write(boolean force) {
632            if (force) {
633                writeInternal();
634                return;
635            }
636            if (SystemClock.elapsedRealtime() - mLastWritten.get() < WRITE_INTERVAL
637                && !DEBUG_DEXOPT) {
638                return;
639            }
640            if (mBackgroundWriteRunning.compareAndSet(false, true)) {
641                new Thread("PackageUsage_DiskWriter") {
642                    @Override
643                    public void run() {
644                        try {
645                            writeInternal();
646                        } finally {
647                            mBackgroundWriteRunning.set(false);
648                        }
649                    }
650                }.start();
651            }
652        }
653
654        private void writeInternal() {
655            synchronized (mPackages) {
656                synchronized (mFileLock) {
657                    AtomicFile file = getFile();
658                    FileOutputStream f = null;
659                    try {
660                        f = file.startWrite();
661                        BufferedOutputStream out = new BufferedOutputStream(f);
662                        FileUtils.setPermissions(file.getBaseFile().getPath(), 0640, SYSTEM_UID, PACKAGE_INFO_GID);
663                        StringBuilder sb = new StringBuilder();
664                        for (PackageParser.Package pkg : mPackages.values()) {
665                            if (pkg.mLastPackageUsageTimeInMills == 0) {
666                                continue;
667                            }
668                            sb.setLength(0);
669                            sb.append(pkg.packageName);
670                            sb.append(' ');
671                            sb.append((long)pkg.mLastPackageUsageTimeInMills);
672                            sb.append('\n');
673                            out.write(sb.toString().getBytes(StandardCharsets.US_ASCII));
674                        }
675                        out.flush();
676                        file.finishWrite(f);
677                    } catch (IOException e) {
678                        if (f != null) {
679                            file.failWrite(f);
680                        }
681                        Log.e(TAG, "Failed to write package usage times", e);
682                    }
683                }
684            }
685            mLastWritten.set(SystemClock.elapsedRealtime());
686        }
687
688        void readLP() {
689            synchronized (mFileLock) {
690                AtomicFile file = getFile();
691                BufferedInputStream in = null;
692                try {
693                    in = new BufferedInputStream(file.openRead());
694                    StringBuffer sb = new StringBuffer();
695                    while (true) {
696                        String packageName = readToken(in, sb, ' ');
697                        if (packageName == null) {
698                            break;
699                        }
700                        String timeInMillisString = readToken(in, sb, '\n');
701                        if (timeInMillisString == null) {
702                            throw new IOException("Failed to find last usage time for package "
703                                                  + packageName);
704                        }
705                        PackageParser.Package pkg = mPackages.get(packageName);
706                        if (pkg == null) {
707                            continue;
708                        }
709                        long timeInMillis;
710                        try {
711                            timeInMillis = Long.parseLong(timeInMillisString.toString());
712                        } catch (NumberFormatException e) {
713                            throw new IOException("Failed to parse " + timeInMillisString
714                                                  + " as a long.", e);
715                        }
716                        pkg.mLastPackageUsageTimeInMills = timeInMillis;
717                    }
718                } catch (FileNotFoundException expected) {
719                    mIsHistoricalPackageUsageAvailable = false;
720                } catch (IOException e) {
721                    Log.w(TAG, "Failed to read package usage times", e);
722                } finally {
723                    IoUtils.closeQuietly(in);
724                }
725            }
726            mLastWritten.set(SystemClock.elapsedRealtime());
727        }
728
729        private String readToken(InputStream in, StringBuffer sb, char endOfToken)
730                throws IOException {
731            sb.setLength(0);
732            while (true) {
733                int ch = in.read();
734                if (ch == -1) {
735                    if (sb.length() == 0) {
736                        return null;
737                    }
738                    throw new IOException("Unexpected EOF");
739                }
740                if (ch == endOfToken) {
741                    return sb.toString();
742                }
743                sb.append((char)ch);
744            }
745        }
746
747        private AtomicFile getFile() {
748            File dataDir = Environment.getDataDirectory();
749            File systemDir = new File(dataDir, "system");
750            File fname = new File(systemDir, "package-usage.list");
751            return new AtomicFile(fname);
752        }
753    }
754
755    class PackageHandler extends Handler {
756        private boolean mBound = false;
757        final ArrayList<HandlerParams> mPendingInstalls =
758            new ArrayList<HandlerParams>();
759
760        private boolean connectToService() {
761            if (DEBUG_SD_INSTALL) Log.i(TAG, "Trying to bind to" +
762                    " DefaultContainerService");
763            Intent service = new Intent().setComponent(DEFAULT_CONTAINER_COMPONENT);
764            Process.setThreadPriority(Process.THREAD_PRIORITY_DEFAULT);
765            if (mContext.bindServiceAsUser(service, mDefContainerConn,
766                    Context.BIND_AUTO_CREATE, UserHandle.OWNER)) {
767                Process.setThreadPriority(Process.THREAD_PRIORITY_BACKGROUND);
768                mBound = true;
769                return true;
770            }
771            Process.setThreadPriority(Process.THREAD_PRIORITY_BACKGROUND);
772            return false;
773        }
774
775        private void disconnectService() {
776            mContainerService = null;
777            mBound = false;
778            Process.setThreadPriority(Process.THREAD_PRIORITY_DEFAULT);
779            mContext.unbindService(mDefContainerConn);
780            Process.setThreadPriority(Process.THREAD_PRIORITY_BACKGROUND);
781        }
782
783        PackageHandler(Looper looper) {
784            super(looper);
785        }
786
787        public void handleMessage(Message msg) {
788            try {
789                doHandleMessage(msg);
790            } finally {
791                Process.setThreadPriority(Process.THREAD_PRIORITY_BACKGROUND);
792            }
793        }
794
795        void doHandleMessage(Message msg) {
796            switch (msg.what) {
797                case INIT_COPY: {
798                    HandlerParams params = (HandlerParams) msg.obj;
799                    int idx = mPendingInstalls.size();
800                    if (DEBUG_INSTALL) Slog.i(TAG, "init_copy idx=" + idx + ": " + params);
801                    // If a bind was already initiated we dont really
802                    // need to do anything. The pending install
803                    // will be processed later on.
804                    if (!mBound) {
805                        // If this is the only one pending we might
806                        // have to bind to the service again.
807                        if (!connectToService()) {
808                            Slog.e(TAG, "Failed to bind to media container service");
809                            params.serviceError();
810                            return;
811                        } else {
812                            // Once we bind to the service, the first
813                            // pending request will be processed.
814                            mPendingInstalls.add(idx, params);
815                        }
816                    } else {
817                        mPendingInstalls.add(idx, params);
818                        // Already bound to the service. Just make
819                        // sure we trigger off processing the first request.
820                        if (idx == 0) {
821                            mHandler.sendEmptyMessage(MCS_BOUND);
822                        }
823                    }
824                    break;
825                }
826                case MCS_BOUND: {
827                    if (DEBUG_INSTALL) Slog.i(TAG, "mcs_bound");
828                    if (msg.obj != null) {
829                        mContainerService = (IMediaContainerService) msg.obj;
830                    }
831                    if (mContainerService == null) {
832                        // Something seriously wrong. Bail out
833                        Slog.e(TAG, "Cannot bind to media container service");
834                        for (HandlerParams params : mPendingInstalls) {
835                            // Indicate service bind error
836                            params.serviceError();
837                        }
838                        mPendingInstalls.clear();
839                    } else if (mPendingInstalls.size() > 0) {
840                        HandlerParams params = mPendingInstalls.get(0);
841                        if (params != null) {
842                            if (params.startCopy()) {
843                                // We are done...  look for more work or to
844                                // go idle.
845                                if (DEBUG_SD_INSTALL) Log.i(TAG,
846                                        "Checking for more work or unbind...");
847                                // Delete pending install
848                                if (mPendingInstalls.size() > 0) {
849                                    mPendingInstalls.remove(0);
850                                }
851                                if (mPendingInstalls.size() == 0) {
852                                    if (mBound) {
853                                        if (DEBUG_SD_INSTALL) Log.i(TAG,
854                                                "Posting delayed MCS_UNBIND");
855                                        removeMessages(MCS_UNBIND);
856                                        Message ubmsg = obtainMessage(MCS_UNBIND);
857                                        // Unbind after a little delay, to avoid
858                                        // continual thrashing.
859                                        sendMessageDelayed(ubmsg, 10000);
860                                    }
861                                } else {
862                                    // There are more pending requests in queue.
863                                    // Just post MCS_BOUND message to trigger processing
864                                    // of next pending install.
865                                    if (DEBUG_SD_INSTALL) Log.i(TAG,
866                                            "Posting MCS_BOUND for next work");
867                                    mHandler.sendEmptyMessage(MCS_BOUND);
868                                }
869                            }
870                        }
871                    } else {
872                        // Should never happen ideally.
873                        Slog.w(TAG, "Empty queue");
874                    }
875                    break;
876                }
877                case MCS_RECONNECT: {
878                    if (DEBUG_INSTALL) Slog.i(TAG, "mcs_reconnect");
879                    if (mPendingInstalls.size() > 0) {
880                        if (mBound) {
881                            disconnectService();
882                        }
883                        if (!connectToService()) {
884                            Slog.e(TAG, "Failed to bind to media container service");
885                            for (HandlerParams params : mPendingInstalls) {
886                                // Indicate service bind error
887                                params.serviceError();
888                            }
889                            mPendingInstalls.clear();
890                        }
891                    }
892                    break;
893                }
894                case MCS_UNBIND: {
895                    // If there is no actual work left, then time to unbind.
896                    if (DEBUG_INSTALL) Slog.i(TAG, "mcs_unbind");
897
898                    if (mPendingInstalls.size() == 0 && mPendingVerification.size() == 0) {
899                        if (mBound) {
900                            if (DEBUG_INSTALL) Slog.i(TAG, "calling disconnectService()");
901
902                            disconnectService();
903                        }
904                    } else if (mPendingInstalls.size() > 0) {
905                        // There are more pending requests in queue.
906                        // Just post MCS_BOUND message to trigger processing
907                        // of next pending install.
908                        mHandler.sendEmptyMessage(MCS_BOUND);
909                    }
910
911                    break;
912                }
913                case MCS_GIVE_UP: {
914                    if (DEBUG_INSTALL) Slog.i(TAG, "mcs_giveup too many retries");
915                    mPendingInstalls.remove(0);
916                    break;
917                }
918                case SEND_PENDING_BROADCAST: {
919                    String packages[];
920                    ArrayList<String> components[];
921                    int size = 0;
922                    int uids[];
923                    Process.setThreadPriority(Process.THREAD_PRIORITY_DEFAULT);
924                    synchronized (mPackages) {
925                        if (mPendingBroadcasts == null) {
926                            return;
927                        }
928                        size = mPendingBroadcasts.size();
929                        if (size <= 0) {
930                            // Nothing to be done. Just return
931                            return;
932                        }
933                        packages = new String[size];
934                        components = new ArrayList[size];
935                        uids = new int[size];
936                        int i = 0;  // filling out the above arrays
937
938                        for (int n = 0; n < mPendingBroadcasts.userIdCount(); n++) {
939                            int packageUserId = mPendingBroadcasts.userIdAt(n);
940                            Iterator<Map.Entry<String, ArrayList<String>>> it
941                                    = mPendingBroadcasts.packagesForUserId(packageUserId)
942                                            .entrySet().iterator();
943                            while (it.hasNext() && i < size) {
944                                Map.Entry<String, ArrayList<String>> ent = it.next();
945                                packages[i] = ent.getKey();
946                                components[i] = ent.getValue();
947                                PackageSetting ps = mSettings.mPackages.get(ent.getKey());
948                                uids[i] = (ps != null)
949                                        ? UserHandle.getUid(packageUserId, ps.appId)
950                                        : -1;
951                                i++;
952                            }
953                        }
954                        size = i;
955                        mPendingBroadcasts.clear();
956                    }
957                    // Send broadcasts
958                    for (int i = 0; i < size; i++) {
959                        sendPackageChangedBroadcast(packages[i], true, components[i], uids[i]);
960                    }
961                    Process.setThreadPriority(Process.THREAD_PRIORITY_BACKGROUND);
962                    break;
963                }
964                case START_CLEANING_PACKAGE: {
965                    Process.setThreadPriority(Process.THREAD_PRIORITY_DEFAULT);
966                    final String packageName = (String)msg.obj;
967                    final int userId = msg.arg1;
968                    final boolean andCode = msg.arg2 != 0;
969                    synchronized (mPackages) {
970                        if (userId == UserHandle.USER_ALL) {
971                            int[] users = sUserManager.getUserIds();
972                            for (int user : users) {
973                                mSettings.addPackageToCleanLPw(
974                                        new PackageCleanItem(user, packageName, andCode));
975                            }
976                        } else {
977                            mSettings.addPackageToCleanLPw(
978                                    new PackageCleanItem(userId, packageName, andCode));
979                        }
980                    }
981                    Process.setThreadPriority(Process.THREAD_PRIORITY_BACKGROUND);
982                    startCleaningPackages();
983                } break;
984                case POST_INSTALL: {
985                    if (DEBUG_INSTALL) Log.v(TAG, "Handling post-install for " + msg.arg1);
986                    PostInstallData data = mRunningInstalls.get(msg.arg1);
987                    mRunningInstalls.delete(msg.arg1);
988                    boolean deleteOld = false;
989
990                    if (data != null) {
991                        InstallArgs args = data.args;
992                        PackageInstalledInfo res = data.res;
993
994                        if (res.returnCode == PackageManager.INSTALL_SUCCEEDED) {
995                            res.removedInfo.sendBroadcast(false, true, false);
996                            Bundle extras = new Bundle(1);
997                            extras.putInt(Intent.EXTRA_UID, res.uid);
998                            // Determine the set of users who are adding this
999                            // package for the first time vs. those who are seeing
1000                            // an update.
1001                            int[] firstUsers;
1002                            int[] updateUsers = new int[0];
1003                            if (res.origUsers == null || res.origUsers.length == 0) {
1004                                firstUsers = res.newUsers;
1005                            } else {
1006                                firstUsers = new int[0];
1007                                for (int i=0; i<res.newUsers.length; i++) {
1008                                    int user = res.newUsers[i];
1009                                    boolean isNew = true;
1010                                    for (int j=0; j<res.origUsers.length; j++) {
1011                                        if (res.origUsers[j] == user) {
1012                                            isNew = false;
1013                                            break;
1014                                        }
1015                                    }
1016                                    if (isNew) {
1017                                        int[] newFirst = new int[firstUsers.length+1];
1018                                        System.arraycopy(firstUsers, 0, newFirst, 0,
1019                                                firstUsers.length);
1020                                        newFirst[firstUsers.length] = user;
1021                                        firstUsers = newFirst;
1022                                    } else {
1023                                        int[] newUpdate = new int[updateUsers.length+1];
1024                                        System.arraycopy(updateUsers, 0, newUpdate, 0,
1025                                                updateUsers.length);
1026                                        newUpdate[updateUsers.length] = user;
1027                                        updateUsers = newUpdate;
1028                                    }
1029                                }
1030                            }
1031                            sendPackageBroadcast(Intent.ACTION_PACKAGE_ADDED,
1032                                    res.pkg.applicationInfo.packageName,
1033                                    extras, null, null, firstUsers);
1034                            final boolean update = res.removedInfo.removedPackage != null;
1035                            if (update) {
1036                                extras.putBoolean(Intent.EXTRA_REPLACING, true);
1037                            }
1038                            sendPackageBroadcast(Intent.ACTION_PACKAGE_ADDED,
1039                                    res.pkg.applicationInfo.packageName,
1040                                    extras, null, null, updateUsers);
1041                            if (update) {
1042                                sendPackageBroadcast(Intent.ACTION_PACKAGE_REPLACED,
1043                                        res.pkg.applicationInfo.packageName,
1044                                        extras, null, null, updateUsers);
1045                                sendPackageBroadcast(Intent.ACTION_MY_PACKAGE_REPLACED,
1046                                        null, null,
1047                                        res.pkg.applicationInfo.packageName, null, updateUsers);
1048
1049                                // treat asec-hosted packages like removable media on upgrade
1050                                if (res.pkg.isForwardLocked() || isExternal(res.pkg)) {
1051                                    if (DEBUG_INSTALL) {
1052                                        Slog.i(TAG, "upgrading pkg " + res.pkg
1053                                                + " is ASEC-hosted -> AVAILABLE");
1054                                    }
1055                                    int[] uidArray = new int[] { res.pkg.applicationInfo.uid };
1056                                    ArrayList<String> pkgList = new ArrayList<String>(1);
1057                                    pkgList.add(res.pkg.applicationInfo.packageName);
1058                                    sendResourcesChangedBroadcast(true, true,
1059                                            pkgList,uidArray, null);
1060                                }
1061                            }
1062                            if (res.removedInfo.args != null) {
1063                                // Remove the replaced package's older resources safely now
1064                                deleteOld = true;
1065                            }
1066
1067                            // Log current value of "unknown sources" setting
1068                            EventLog.writeEvent(EventLogTags.UNKNOWN_SOURCES_ENABLED,
1069                                getUnknownSourcesSettings());
1070                        }
1071                        // Force a gc to clear up things
1072                        Runtime.getRuntime().gc();
1073                        // We delete after a gc for applications  on sdcard.
1074                        if (deleteOld) {
1075                            synchronized (mInstallLock) {
1076                                res.removedInfo.args.doPostDeleteLI(true);
1077                            }
1078                        }
1079                        if (args.observer != null) {
1080                            try {
1081                                Bundle extras = extrasForInstallResult(res);
1082                                args.observer.onPackageInstalled(res.name, res.returnCode,
1083                                        res.returnMsg, extras);
1084                            } catch (RemoteException e) {
1085                                Slog.i(TAG, "Observer no longer exists.");
1086                            }
1087                        }
1088                    } else {
1089                        Slog.e(TAG, "Bogus post-install token " + msg.arg1);
1090                    }
1091                } break;
1092                case UPDATED_MEDIA_STATUS: {
1093                    if (DEBUG_SD_INSTALL) Log.i(TAG, "Got message UPDATED_MEDIA_STATUS");
1094                    boolean reportStatus = msg.arg1 == 1;
1095                    boolean doGc = msg.arg2 == 1;
1096                    if (DEBUG_SD_INSTALL) Log.i(TAG, "reportStatus=" + reportStatus + ", doGc = " + doGc);
1097                    if (doGc) {
1098                        // Force a gc to clear up stale containers.
1099                        Runtime.getRuntime().gc();
1100                    }
1101                    if (msg.obj != null) {
1102                        @SuppressWarnings("unchecked")
1103                        Set<AsecInstallArgs> args = (Set<AsecInstallArgs>) msg.obj;
1104                        if (DEBUG_SD_INSTALL) Log.i(TAG, "Unloading all containers");
1105                        // Unload containers
1106                        unloadAllContainers(args);
1107                    }
1108                    if (reportStatus) {
1109                        try {
1110                            if (DEBUG_SD_INSTALL) Log.i(TAG, "Invoking MountService call back");
1111                            PackageHelper.getMountService().finishMediaUpdate();
1112                        } catch (RemoteException e) {
1113                            Log.e(TAG, "MountService not running?");
1114                        }
1115                    }
1116                } break;
1117                case WRITE_SETTINGS: {
1118                    Process.setThreadPriority(Process.THREAD_PRIORITY_DEFAULT);
1119                    synchronized (mPackages) {
1120                        removeMessages(WRITE_SETTINGS);
1121                        removeMessages(WRITE_PACKAGE_RESTRICTIONS);
1122                        mSettings.writeLPr();
1123                        mDirtyUsers.clear();
1124                    }
1125                    Process.setThreadPriority(Process.THREAD_PRIORITY_BACKGROUND);
1126                } break;
1127                case WRITE_PACKAGE_RESTRICTIONS: {
1128                    Process.setThreadPriority(Process.THREAD_PRIORITY_DEFAULT);
1129                    synchronized (mPackages) {
1130                        removeMessages(WRITE_PACKAGE_RESTRICTIONS);
1131                        for (int userId : mDirtyUsers) {
1132                            mSettings.writePackageRestrictionsLPr(userId);
1133                        }
1134                        mDirtyUsers.clear();
1135                    }
1136                    Process.setThreadPriority(Process.THREAD_PRIORITY_BACKGROUND);
1137                } break;
1138                case CHECK_PENDING_VERIFICATION: {
1139                    final int verificationId = msg.arg1;
1140                    final PackageVerificationState state = mPendingVerification.get(verificationId);
1141
1142                    if ((state != null) && !state.timeoutExtended()) {
1143                        final InstallArgs args = state.getInstallArgs();
1144                        final Uri originUri = Uri.fromFile(args.origin.resolvedFile);
1145
1146                        Slog.i(TAG, "Verification timed out for " + originUri);
1147                        mPendingVerification.remove(verificationId);
1148
1149                        int ret = PackageManager.INSTALL_FAILED_VERIFICATION_FAILURE;
1150
1151                        if (getDefaultVerificationResponse() == PackageManager.VERIFICATION_ALLOW) {
1152                            Slog.i(TAG, "Continuing with installation of " + originUri);
1153                            state.setVerifierResponse(Binder.getCallingUid(),
1154                                    PackageManager.VERIFICATION_ALLOW_WITHOUT_SUFFICIENT);
1155                            broadcastPackageVerified(verificationId, originUri,
1156                                    PackageManager.VERIFICATION_ALLOW,
1157                                    state.getInstallArgs().getUser());
1158                            try {
1159                                ret = args.copyApk(mContainerService, true);
1160                            } catch (RemoteException e) {
1161                                Slog.e(TAG, "Could not contact the ContainerService");
1162                            }
1163                        } else {
1164                            broadcastPackageVerified(verificationId, originUri,
1165                                    PackageManager.VERIFICATION_REJECT,
1166                                    state.getInstallArgs().getUser());
1167                        }
1168
1169                        processPendingInstall(args, ret);
1170                        mHandler.sendEmptyMessage(MCS_UNBIND);
1171                    }
1172                    break;
1173                }
1174                case PACKAGE_VERIFIED: {
1175                    final int verificationId = msg.arg1;
1176
1177                    final PackageVerificationState state = mPendingVerification.get(verificationId);
1178                    if (state == null) {
1179                        Slog.w(TAG, "Invalid verification token " + verificationId + " received");
1180                        break;
1181                    }
1182
1183                    final PackageVerificationResponse response = (PackageVerificationResponse) msg.obj;
1184
1185                    state.setVerifierResponse(response.callerUid, response.code);
1186
1187                    if (state.isVerificationComplete()) {
1188                        mPendingVerification.remove(verificationId);
1189
1190                        final InstallArgs args = state.getInstallArgs();
1191                        final Uri originUri = Uri.fromFile(args.origin.resolvedFile);
1192
1193                        int ret;
1194                        if (state.isInstallAllowed()) {
1195                            ret = PackageManager.INSTALL_FAILED_INTERNAL_ERROR;
1196                            broadcastPackageVerified(verificationId, originUri,
1197                                    response.code, state.getInstallArgs().getUser());
1198                            try {
1199                                ret = args.copyApk(mContainerService, true);
1200                            } catch (RemoteException e) {
1201                                Slog.e(TAG, "Could not contact the ContainerService");
1202                            }
1203                        } else {
1204                            ret = PackageManager.INSTALL_FAILED_VERIFICATION_FAILURE;
1205                        }
1206
1207                        processPendingInstall(args, ret);
1208
1209                        mHandler.sendEmptyMessage(MCS_UNBIND);
1210                    }
1211
1212                    break;
1213                }
1214            }
1215        }
1216    }
1217
1218    Bundle extrasForInstallResult(PackageInstalledInfo res) {
1219        Bundle extras = null;
1220        switch (res.returnCode) {
1221            case PackageManager.INSTALL_FAILED_DUPLICATE_PERMISSION: {
1222                extras = new Bundle();
1223                extras.putString(PackageManager.EXTRA_FAILURE_EXISTING_PERMISSION,
1224                        res.origPermission);
1225                extras.putString(PackageManager.EXTRA_FAILURE_EXISTING_PACKAGE,
1226                        res.origPackage);
1227                break;
1228            }
1229        }
1230        return extras;
1231    }
1232
1233    void scheduleWriteSettingsLocked() {
1234        if (!mHandler.hasMessages(WRITE_SETTINGS)) {
1235            mHandler.sendEmptyMessageDelayed(WRITE_SETTINGS, WRITE_SETTINGS_DELAY);
1236        }
1237    }
1238
1239    void scheduleWritePackageRestrictionsLocked(int userId) {
1240        if (!sUserManager.exists(userId)) return;
1241        mDirtyUsers.add(userId);
1242        if (!mHandler.hasMessages(WRITE_PACKAGE_RESTRICTIONS)) {
1243            mHandler.sendEmptyMessageDelayed(WRITE_PACKAGE_RESTRICTIONS, WRITE_SETTINGS_DELAY);
1244        }
1245    }
1246
1247    public static final PackageManagerService main(Context context, Installer installer,
1248            boolean factoryTest, boolean onlyCore) {
1249        PackageManagerService m = new PackageManagerService(context, installer,
1250                factoryTest, onlyCore);
1251        ServiceManager.addService("package", m);
1252        return m;
1253    }
1254
1255    static String[] splitString(String str, char sep) {
1256        int count = 1;
1257        int i = 0;
1258        while ((i=str.indexOf(sep, i)) >= 0) {
1259            count++;
1260            i++;
1261        }
1262
1263        String[] res = new String[count];
1264        i=0;
1265        count = 0;
1266        int lastI=0;
1267        while ((i=str.indexOf(sep, i)) >= 0) {
1268            res[count] = str.substring(lastI, i);
1269            count++;
1270            i++;
1271            lastI = i;
1272        }
1273        res[count] = str.substring(lastI, str.length());
1274        return res;
1275    }
1276
1277    private static void getDefaultDisplayMetrics(Context context, DisplayMetrics metrics) {
1278        DisplayManager displayManager = (DisplayManager) context.getSystemService(
1279                Context.DISPLAY_SERVICE);
1280        displayManager.getDisplay(Display.DEFAULT_DISPLAY).getMetrics(metrics);
1281    }
1282
1283    public PackageManagerService(Context context, Installer installer,
1284            boolean factoryTest, boolean onlyCore) {
1285        EventLog.writeEvent(EventLogTags.BOOT_PROGRESS_PMS_START,
1286                SystemClock.uptimeMillis());
1287
1288        if (mSdkVersion <= 0) {
1289            Slog.w(TAG, "**** ro.build.version.sdk not set!");
1290        }
1291
1292        mContext = context;
1293        mFactoryTest = factoryTest;
1294        mOnlyCore = onlyCore;
1295        mLazyDexOpt = "eng".equals(SystemProperties.get("ro.build.type"));
1296        mMetrics = new DisplayMetrics();
1297        mSettings = new Settings(context);
1298        mSettings.addSharedUserLPw("android.uid.system", Process.SYSTEM_UID,
1299                ApplicationInfo.FLAG_SYSTEM, ApplicationInfo.PRIVATE_FLAG_PRIVILEGED);
1300        mSettings.addSharedUserLPw("android.uid.phone", RADIO_UID,
1301                ApplicationInfo.FLAG_SYSTEM, ApplicationInfo.PRIVATE_FLAG_PRIVILEGED);
1302        mSettings.addSharedUserLPw("android.uid.log", LOG_UID,
1303                ApplicationInfo.FLAG_SYSTEM, ApplicationInfo.PRIVATE_FLAG_PRIVILEGED);
1304        mSettings.addSharedUserLPw("android.uid.nfc", NFC_UID,
1305                ApplicationInfo.FLAG_SYSTEM, ApplicationInfo.PRIVATE_FLAG_PRIVILEGED);
1306        mSettings.addSharedUserLPw("android.uid.bluetooth", BLUETOOTH_UID,
1307                ApplicationInfo.FLAG_SYSTEM, ApplicationInfo.PRIVATE_FLAG_PRIVILEGED);
1308        mSettings.addSharedUserLPw("android.uid.shell", SHELL_UID,
1309                ApplicationInfo.FLAG_SYSTEM, ApplicationInfo.PRIVATE_FLAG_PRIVILEGED);
1310
1311        // TODO: add a property to control this?
1312        long dexOptLRUThresholdInMinutes;
1313        if (mLazyDexOpt) {
1314            dexOptLRUThresholdInMinutes = 30; // only last 30 minutes of apps for eng builds.
1315        } else {
1316            dexOptLRUThresholdInMinutes = 7 * 24 * 60; // apps used in the 7 days for users.
1317        }
1318        mDexOptLRUThresholdInMills = dexOptLRUThresholdInMinutes * 60 * 1000;
1319
1320        String separateProcesses = SystemProperties.get("debug.separate_processes");
1321        if (separateProcesses != null && separateProcesses.length() > 0) {
1322            if ("*".equals(separateProcesses)) {
1323                mDefParseFlags = PackageParser.PARSE_IGNORE_PROCESSES;
1324                mSeparateProcesses = null;
1325                Slog.w(TAG, "Running with debug.separate_processes: * (ALL)");
1326            } else {
1327                mDefParseFlags = 0;
1328                mSeparateProcesses = separateProcesses.split(",");
1329                Slog.w(TAG, "Running with debug.separate_processes: "
1330                        + separateProcesses);
1331            }
1332        } else {
1333            mDefParseFlags = 0;
1334            mSeparateProcesses = null;
1335        }
1336
1337        mInstaller = installer;
1338        mPackageDexOptimizer = new PackageDexOptimizer(this);
1339
1340        getDefaultDisplayMetrics(context, mMetrics);
1341
1342        SystemConfig systemConfig = SystemConfig.getInstance();
1343        mGlobalGids = systemConfig.getGlobalGids();
1344        mSystemPermissions = systemConfig.getSystemPermissions();
1345        mAvailableFeatures = systemConfig.getAvailableFeatures();
1346
1347        synchronized (mInstallLock) {
1348        // writer
1349        synchronized (mPackages) {
1350            mHandlerThread = new ServiceThread(TAG,
1351                    Process.THREAD_PRIORITY_BACKGROUND, true /*allowIo*/);
1352            mHandlerThread.start();
1353            mHandler = new PackageHandler(mHandlerThread.getLooper());
1354            Watchdog.getInstance().addThread(mHandler, WATCHDOG_TIMEOUT);
1355
1356            File dataDir = Environment.getDataDirectory();
1357            mAppDataDir = new File(dataDir, "data");
1358            mAppInstallDir = new File(dataDir, "app");
1359            mAppLib32InstallDir = new File(dataDir, "app-lib");
1360            mAsecInternalPath = new File(dataDir, "app-asec").getPath();
1361            mUserAppDataDir = new File(dataDir, "user");
1362            mDrmAppPrivateInstallDir = new File(dataDir, "app-private");
1363
1364            sUserManager = new UserManagerService(context, this,
1365                    mInstallLock, mPackages);
1366
1367            // Propagate permission configuration in to package manager.
1368            ArrayMap<String, SystemConfig.PermissionEntry> permConfig
1369                    = systemConfig.getPermissions();
1370            for (int i=0; i<permConfig.size(); i++) {
1371                SystemConfig.PermissionEntry perm = permConfig.valueAt(i);
1372                BasePermission bp = mSettings.mPermissions.get(perm.name);
1373                if (bp == null) {
1374                    bp = new BasePermission(perm.name, "android", BasePermission.TYPE_BUILTIN);
1375                    mSettings.mPermissions.put(perm.name, bp);
1376                }
1377                if (perm.gids != null) {
1378                    bp.gids = appendInts(bp.gids, perm.gids);
1379                }
1380            }
1381
1382            ArrayMap<String, String> libConfig = systemConfig.getSharedLibraries();
1383            for (int i=0; i<libConfig.size(); i++) {
1384                mSharedLibraries.put(libConfig.keyAt(i),
1385                        new SharedLibraryEntry(libConfig.valueAt(i), null));
1386            }
1387
1388            mFoundPolicyFile = SELinuxMMAC.readInstallPolicy();
1389
1390            mRestoredSettings = mSettings.readLPw(this, sUserManager.getUsers(false),
1391                    mSdkVersion, mOnlyCore);
1392
1393            String customResolverActivity = Resources.getSystem().getString(
1394                    R.string.config_customResolverActivity);
1395            if (TextUtils.isEmpty(customResolverActivity)) {
1396                customResolverActivity = null;
1397            } else {
1398                mCustomResolverComponentName = ComponentName.unflattenFromString(
1399                        customResolverActivity);
1400            }
1401
1402            long startTime = SystemClock.uptimeMillis();
1403
1404            EventLog.writeEvent(EventLogTags.BOOT_PROGRESS_PMS_SYSTEM_SCAN_START,
1405                    startTime);
1406
1407            // Set flag to monitor and not change apk file paths when
1408            // scanning install directories.
1409            final int scanFlags = SCAN_NO_PATHS | SCAN_DEFER_DEX | SCAN_BOOTING;
1410
1411            final ArraySet<String> alreadyDexOpted = new ArraySet<String>();
1412
1413            /**
1414             * Add everything in the in the boot class path to the
1415             * list of process files because dexopt will have been run
1416             * if necessary during zygote startup.
1417             */
1418            final String bootClassPath = System.getenv("BOOTCLASSPATH");
1419            final String systemServerClassPath = System.getenv("SYSTEMSERVERCLASSPATH");
1420
1421            if (bootClassPath != null) {
1422                String[] bootClassPathElements = splitString(bootClassPath, ':');
1423                for (String element : bootClassPathElements) {
1424                    alreadyDexOpted.add(element);
1425                }
1426            } else {
1427                Slog.w(TAG, "No BOOTCLASSPATH found!");
1428            }
1429
1430            if (systemServerClassPath != null) {
1431                String[] systemServerClassPathElements = splitString(systemServerClassPath, ':');
1432                for (String element : systemServerClassPathElements) {
1433                    alreadyDexOpted.add(element);
1434                }
1435            } else {
1436                Slog.w(TAG, "No SYSTEMSERVERCLASSPATH found!");
1437            }
1438
1439            final List<String> allInstructionSets = InstructionSets.getAllInstructionSets();
1440            final String[] dexCodeInstructionSets =
1441                    getDexCodeInstructionSets(
1442                            allInstructionSets.toArray(new String[allInstructionSets.size()]));
1443
1444            /**
1445             * Ensure all external libraries have had dexopt run on them.
1446             */
1447            if (mSharedLibraries.size() > 0) {
1448                // NOTE: For now, we're compiling these system "shared libraries"
1449                // (and framework jars) into all available architectures. It's possible
1450                // to compile them only when we come across an app that uses them (there's
1451                // already logic for that in scanPackageLI) but that adds some complexity.
1452                for (String dexCodeInstructionSet : dexCodeInstructionSets) {
1453                    for (SharedLibraryEntry libEntry : mSharedLibraries.values()) {
1454                        final String lib = libEntry.path;
1455                        if (lib == null) {
1456                            continue;
1457                        }
1458
1459                        try {
1460                            byte dexoptRequired = DexFile.isDexOptNeededInternal(lib, null,
1461                                                                                 dexCodeInstructionSet,
1462                                                                                 false);
1463                            if (dexoptRequired != DexFile.UP_TO_DATE) {
1464                                alreadyDexOpted.add(lib);
1465
1466                                // The list of "shared libraries" we have at this point is
1467                                if (dexoptRequired == DexFile.DEXOPT_NEEDED) {
1468                                    mInstaller.dexopt(lib, Process.SYSTEM_UID, true, dexCodeInstructionSet);
1469                                } else {
1470                                    mInstaller.patchoat(lib, Process.SYSTEM_UID, true, dexCodeInstructionSet);
1471                                }
1472                            }
1473                        } catch (FileNotFoundException e) {
1474                            Slog.w(TAG, "Library not found: " + lib);
1475                        } catch (IOException e) {
1476                            Slog.w(TAG, "Cannot dexopt " + lib + "; is it an APK or JAR? "
1477                                    + e.getMessage());
1478                        }
1479                    }
1480                }
1481            }
1482
1483            File frameworkDir = new File(Environment.getRootDirectory(), "framework");
1484
1485            // Gross hack for now: we know this file doesn't contain any
1486            // code, so don't dexopt it to avoid the resulting log spew.
1487            alreadyDexOpted.add(frameworkDir.getPath() + "/framework-res.apk");
1488
1489            // Gross hack for now: we know this file is only part of
1490            // the boot class path for art, so don't dexopt it to
1491            // avoid the resulting log spew.
1492            alreadyDexOpted.add(frameworkDir.getPath() + "/core-libart.jar");
1493
1494            /**
1495             * And there are a number of commands implemented in Java, which
1496             * we currently need to do the dexopt on so that they can be
1497             * run from a non-root shell.
1498             */
1499            String[] frameworkFiles = frameworkDir.list();
1500            if (frameworkFiles != null) {
1501                // TODO: We could compile these only for the most preferred ABI. We should
1502                // first double check that the dex files for these commands are not referenced
1503                // by other system apps.
1504                for (String dexCodeInstructionSet : dexCodeInstructionSets) {
1505                    for (int i=0; i<frameworkFiles.length; i++) {
1506                        File libPath = new File(frameworkDir, frameworkFiles[i]);
1507                        String path = libPath.getPath();
1508                        // Skip the file if we already did it.
1509                        if (alreadyDexOpted.contains(path)) {
1510                            continue;
1511                        }
1512                        // Skip the file if it is not a type we want to dexopt.
1513                        if (!path.endsWith(".apk") && !path.endsWith(".jar")) {
1514                            continue;
1515                        }
1516                        try {
1517                            byte dexoptRequired = DexFile.isDexOptNeededInternal(path, null,
1518                                                                                 dexCodeInstructionSet,
1519                                                                                 false);
1520                            if (dexoptRequired == DexFile.DEXOPT_NEEDED) {
1521                                mInstaller.dexopt(path, Process.SYSTEM_UID, true, dexCodeInstructionSet);
1522                            } else if (dexoptRequired == DexFile.PATCHOAT_NEEDED) {
1523                                mInstaller.patchoat(path, Process.SYSTEM_UID, true, dexCodeInstructionSet);
1524                            }
1525                        } catch (FileNotFoundException e) {
1526                            Slog.w(TAG, "Jar not found: " + path);
1527                        } catch (IOException e) {
1528                            Slog.w(TAG, "Exception reading jar: " + path, e);
1529                        }
1530                    }
1531                }
1532            }
1533
1534            // Collect vendor overlay packages.
1535            // (Do this before scanning any apps.)
1536            // For security and version matching reason, only consider
1537            // overlay packages if they reside in VENDOR_OVERLAY_DIR.
1538            File vendorOverlayDir = new File(VENDOR_OVERLAY_DIR);
1539            scanDirLI(vendorOverlayDir, PackageParser.PARSE_IS_SYSTEM
1540                    | PackageParser.PARSE_IS_SYSTEM_DIR, scanFlags | SCAN_TRUSTED_OVERLAY, 0);
1541
1542            // Find base frameworks (resource packages without code).
1543            scanDirLI(frameworkDir, PackageParser.PARSE_IS_SYSTEM
1544                    | PackageParser.PARSE_IS_SYSTEM_DIR
1545                    | PackageParser.PARSE_IS_PRIVILEGED,
1546                    scanFlags | SCAN_NO_DEX, 0);
1547
1548            // Collected privileged system packages.
1549            final File privilegedAppDir = new File(Environment.getRootDirectory(), "priv-app");
1550            scanDirLI(privilegedAppDir, PackageParser.PARSE_IS_SYSTEM
1551                    | PackageParser.PARSE_IS_SYSTEM_DIR
1552                    | PackageParser.PARSE_IS_PRIVILEGED, scanFlags, 0);
1553
1554            // Collect ordinary system packages.
1555            final File systemAppDir = new File(Environment.getRootDirectory(), "app");
1556            scanDirLI(systemAppDir, PackageParser.PARSE_IS_SYSTEM
1557                    | PackageParser.PARSE_IS_SYSTEM_DIR, scanFlags, 0);
1558
1559            // Collect all vendor packages.
1560            File vendorAppDir = new File("/vendor/app");
1561            try {
1562                vendorAppDir = vendorAppDir.getCanonicalFile();
1563            } catch (IOException e) {
1564                // failed to look up canonical path, continue with original one
1565            }
1566            scanDirLI(vendorAppDir, PackageParser.PARSE_IS_SYSTEM
1567                    | PackageParser.PARSE_IS_SYSTEM_DIR, scanFlags, 0);
1568
1569            // Collect all OEM packages.
1570            final File oemAppDir = new File(Environment.getOemDirectory(), "app");
1571            scanDirLI(oemAppDir, PackageParser.PARSE_IS_SYSTEM
1572                    | PackageParser.PARSE_IS_SYSTEM_DIR, scanFlags, 0);
1573
1574            if (DEBUG_UPGRADE) Log.v(TAG, "Running installd update commands");
1575            mInstaller.moveFiles();
1576
1577            // Prune any system packages that no longer exist.
1578            final List<String> possiblyDeletedUpdatedSystemApps = new ArrayList<String>();
1579            final ArrayMap<String, File> expectingBetter = new ArrayMap<>();
1580            if (!mOnlyCore) {
1581                Iterator<PackageSetting> psit = mSettings.mPackages.values().iterator();
1582                while (psit.hasNext()) {
1583                    PackageSetting ps = psit.next();
1584
1585                    /*
1586                     * If this is not a system app, it can't be a
1587                     * disable system app.
1588                     */
1589                    if ((ps.pkgFlags & ApplicationInfo.FLAG_SYSTEM) == 0) {
1590                        continue;
1591                    }
1592
1593                    /*
1594                     * If the package is scanned, it's not erased.
1595                     */
1596                    final PackageParser.Package scannedPkg = mPackages.get(ps.name);
1597                    if (scannedPkg != null) {
1598                        /*
1599                         * If the system app is both scanned and in the
1600                         * disabled packages list, then it must have been
1601                         * added via OTA. Remove it from the currently
1602                         * scanned package so the previously user-installed
1603                         * application can be scanned.
1604                         */
1605                        if (mSettings.isDisabledSystemPackageLPr(ps.name)) {
1606                            logCriticalInfo(Log.WARN, "Expecting better updated system app for "
1607                                    + ps.name + "; removing system app.  Last known codePath="
1608                                    + ps.codePathString + ", installStatus=" + ps.installStatus
1609                                    + ", versionCode=" + ps.versionCode + "; scanned versionCode="
1610                                    + scannedPkg.mVersionCode);
1611                            removePackageLI(ps, true);
1612                            expectingBetter.put(ps.name, ps.codePath);
1613                        }
1614
1615                        continue;
1616                    }
1617
1618                    if (!mSettings.isDisabledSystemPackageLPr(ps.name)) {
1619                        psit.remove();
1620                        logCriticalInfo(Log.WARN, "System package " + ps.name
1621                                + " no longer exists; wiping its data");
1622                        removeDataDirsLI(ps.name);
1623                    } else {
1624                        final PackageSetting disabledPs = mSettings.getDisabledSystemPkgLPr(ps.name);
1625                        if (disabledPs.codePath == null || !disabledPs.codePath.exists()) {
1626                            possiblyDeletedUpdatedSystemApps.add(ps.name);
1627                        }
1628                    }
1629                }
1630            }
1631
1632            //look for any incomplete package installations
1633            ArrayList<PackageSetting> deletePkgsList = mSettings.getListOfIncompleteInstallPackagesLPr();
1634            //clean up list
1635            for(int i = 0; i < deletePkgsList.size(); i++) {
1636                //clean up here
1637                cleanupInstallFailedPackage(deletePkgsList.get(i));
1638            }
1639            //delete tmp files
1640            deleteTempPackageFiles();
1641
1642            // Remove any shared userIDs that have no associated packages
1643            mSettings.pruneSharedUsersLPw();
1644
1645            if (!mOnlyCore) {
1646                EventLog.writeEvent(EventLogTags.BOOT_PROGRESS_PMS_DATA_SCAN_START,
1647                        SystemClock.uptimeMillis());
1648                scanDirLI(mAppInstallDir, 0, scanFlags, 0);
1649
1650                scanDirLI(mDrmAppPrivateInstallDir, PackageParser.PARSE_FORWARD_LOCK,
1651                        scanFlags, 0);
1652
1653                /**
1654                 * Remove disable package settings for any updated system
1655                 * apps that were removed via an OTA. If they're not a
1656                 * previously-updated app, remove them completely.
1657                 * Otherwise, just revoke their system-level permissions.
1658                 */
1659                for (String deletedAppName : possiblyDeletedUpdatedSystemApps) {
1660                    PackageParser.Package deletedPkg = mPackages.get(deletedAppName);
1661                    mSettings.removeDisabledSystemPackageLPw(deletedAppName);
1662
1663                    String msg;
1664                    if (deletedPkg == null) {
1665                        msg = "Updated system package " + deletedAppName
1666                                + " no longer exists; wiping its data";
1667                        removeDataDirsLI(deletedAppName);
1668                    } else {
1669                        msg = "Updated system app + " + deletedAppName
1670                                + " no longer present; removing system privileges for "
1671                                + deletedAppName;
1672
1673                        deletedPkg.applicationInfo.flags &= ~ApplicationInfo.FLAG_SYSTEM;
1674
1675                        PackageSetting deletedPs = mSettings.mPackages.get(deletedAppName);
1676                        deletedPs.pkgFlags &= ~ApplicationInfo.FLAG_SYSTEM;
1677                    }
1678                    logCriticalInfo(Log.WARN, msg);
1679                }
1680
1681                /**
1682                 * Make sure all system apps that we expected to appear on
1683                 * the userdata partition actually showed up. If they never
1684                 * appeared, crawl back and revive the system version.
1685                 */
1686                for (int i = 0; i < expectingBetter.size(); i++) {
1687                    final String packageName = expectingBetter.keyAt(i);
1688                    if (!mPackages.containsKey(packageName)) {
1689                        final File scanFile = expectingBetter.valueAt(i);
1690
1691                        logCriticalInfo(Log.WARN, "Expected better " + packageName
1692                                + " but never showed up; reverting to system");
1693
1694                        final int reparseFlags;
1695                        if (FileUtils.contains(privilegedAppDir, scanFile)) {
1696                            reparseFlags = PackageParser.PARSE_IS_SYSTEM
1697                                    | PackageParser.PARSE_IS_SYSTEM_DIR
1698                                    | PackageParser.PARSE_IS_PRIVILEGED;
1699                        } else if (FileUtils.contains(systemAppDir, scanFile)) {
1700                            reparseFlags = PackageParser.PARSE_IS_SYSTEM
1701                                    | PackageParser.PARSE_IS_SYSTEM_DIR;
1702                        } else if (FileUtils.contains(vendorAppDir, scanFile)) {
1703                            reparseFlags = PackageParser.PARSE_IS_SYSTEM
1704                                    | PackageParser.PARSE_IS_SYSTEM_DIR;
1705                        } else if (FileUtils.contains(oemAppDir, scanFile)) {
1706                            reparseFlags = PackageParser.PARSE_IS_SYSTEM
1707                                    | PackageParser.PARSE_IS_SYSTEM_DIR;
1708                        } else {
1709                            Slog.e(TAG, "Ignoring unexpected fallback path " + scanFile);
1710                            continue;
1711                        }
1712
1713                        mSettings.enableSystemPackageLPw(packageName);
1714
1715                        try {
1716                            scanPackageLI(scanFile, reparseFlags, scanFlags, 0, null);
1717                        } catch (PackageManagerException e) {
1718                            Slog.e(TAG, "Failed to parse original system package: "
1719                                    + e.getMessage());
1720                        }
1721                    }
1722                }
1723            }
1724
1725            // Now that we know all of the shared libraries, update all clients to have
1726            // the correct library paths.
1727            updateAllSharedLibrariesLPw();
1728
1729            for (SharedUserSetting setting : mSettings.getAllSharedUsersLPw()) {
1730                // NOTE: We ignore potential failures here during a system scan (like
1731                // the rest of the commands above) because there's precious little we
1732                // can do about it. A settings error is reported, though.
1733                adjustCpuAbisForSharedUserLPw(setting.packages, null /* scanned package */,
1734                        false /* force dexopt */, false /* defer dexopt */);
1735            }
1736
1737            // Now that we know all the packages we are keeping,
1738            // read and update their last usage times.
1739            mPackageUsage.readLP();
1740
1741            EventLog.writeEvent(EventLogTags.BOOT_PROGRESS_PMS_SCAN_END,
1742                    SystemClock.uptimeMillis());
1743            Slog.i(TAG, "Time to scan packages: "
1744                    + ((SystemClock.uptimeMillis()-startTime)/1000f)
1745                    + " seconds");
1746
1747            // If the platform SDK has changed since the last time we booted,
1748            // we need to re-grant app permission to catch any new ones that
1749            // appear.  This is really a hack, and means that apps can in some
1750            // cases get permissions that the user didn't initially explicitly
1751            // allow...  it would be nice to have some better way to handle
1752            // this situation.
1753            final boolean regrantPermissions = mSettings.mInternalSdkPlatform
1754                    != mSdkVersion;
1755            if (regrantPermissions) Slog.i(TAG, "Platform changed from "
1756                    + mSettings.mInternalSdkPlatform + " to " + mSdkVersion
1757                    + "; regranting permissions for internal storage");
1758            mSettings.mInternalSdkPlatform = mSdkVersion;
1759
1760            updatePermissionsLPw(null, null, UPDATE_PERMISSIONS_ALL
1761                    | (regrantPermissions
1762                            ? (UPDATE_PERMISSIONS_REPLACE_PKG|UPDATE_PERMISSIONS_REPLACE_ALL)
1763                            : 0));
1764
1765            // If this is the first boot, and it is a normal boot, then
1766            // we need to initialize the default preferred apps.
1767            if (!mRestoredSettings && !onlyCore) {
1768                mSettings.readDefaultPreferredAppsLPw(this, 0);
1769            }
1770
1771            // If this is first boot after an OTA, and a normal boot, then
1772            // we need to clear code cache directories.
1773            mIsUpgrade = !Build.FINGERPRINT.equals(mSettings.mFingerprint);
1774            if (mIsUpgrade && !onlyCore) {
1775                Slog.i(TAG, "Build fingerprint changed; clearing code caches");
1776                for (String pkgName : mSettings.mPackages.keySet()) {
1777                    deleteCodeCacheDirsLI(pkgName);
1778                }
1779                mSettings.mFingerprint = Build.FINGERPRINT;
1780            }
1781
1782            // All the changes are done during package scanning.
1783            mSettings.updateInternalDatabaseVersion();
1784
1785            // can downgrade to reader
1786            mSettings.writeLPr();
1787
1788            EventLog.writeEvent(EventLogTags.BOOT_PROGRESS_PMS_READY,
1789                    SystemClock.uptimeMillis());
1790
1791
1792            mRequiredVerifierPackage = getRequiredVerifierLPr();
1793        } // synchronized (mPackages)
1794        } // synchronized (mInstallLock)
1795
1796        mInstallerService = new PackageInstallerService(context, this, mAppInstallDir);
1797
1798        // Now after opening every single application zip, make sure they
1799        // are all flushed.  Not really needed, but keeps things nice and
1800        // tidy.
1801        Runtime.getRuntime().gc();
1802    }
1803
1804    @Override
1805    public boolean isFirstBoot() {
1806        return !mRestoredSettings;
1807    }
1808
1809    @Override
1810    public boolean isOnlyCoreApps() {
1811        return mOnlyCore;
1812    }
1813
1814    @Override
1815    public boolean isUpgrade() {
1816        return mIsUpgrade;
1817    }
1818
1819    private String getRequiredVerifierLPr() {
1820        final Intent verification = new Intent(Intent.ACTION_PACKAGE_NEEDS_VERIFICATION);
1821        final List<ResolveInfo> receivers = queryIntentReceivers(verification, PACKAGE_MIME_TYPE,
1822                PackageManager.GET_DISABLED_COMPONENTS, 0 /* TODO: Which userId? */);
1823
1824        String requiredVerifier = null;
1825
1826        final int N = receivers.size();
1827        for (int i = 0; i < N; i++) {
1828            final ResolveInfo info = receivers.get(i);
1829
1830            if (info.activityInfo == null) {
1831                continue;
1832            }
1833
1834            final String packageName = info.activityInfo.packageName;
1835
1836            final PackageSetting ps = mSettings.mPackages.get(packageName);
1837            if (ps == null) {
1838                continue;
1839            }
1840
1841            final GrantedPermissions gp = ps.sharedUser != null ? ps.sharedUser : ps;
1842            if (!gp.grantedPermissions
1843                    .contains(android.Manifest.permission.PACKAGE_VERIFICATION_AGENT)) {
1844                continue;
1845            }
1846
1847            if (requiredVerifier != null) {
1848                throw new RuntimeException("There can be only one required verifier");
1849            }
1850
1851            requiredVerifier = packageName;
1852        }
1853
1854        return requiredVerifier;
1855    }
1856
1857    @Override
1858    public boolean onTransact(int code, Parcel data, Parcel reply, int flags)
1859            throws RemoteException {
1860        try {
1861            return super.onTransact(code, data, reply, flags);
1862        } catch (RuntimeException e) {
1863            if (!(e instanceof SecurityException) && !(e instanceof IllegalArgumentException)) {
1864                Slog.wtf(TAG, "Package Manager Crash", e);
1865            }
1866            throw e;
1867        }
1868    }
1869
1870    void cleanupInstallFailedPackage(PackageSetting ps) {
1871        logCriticalInfo(Log.WARN, "Cleaning up incompletely installed app: " + ps.name);
1872
1873        removeDataDirsLI(ps.name);
1874        if (ps.codePath != null) {
1875            if (ps.codePath.isDirectory()) {
1876                mInstaller.rmPackageDir(ps.codePath.getAbsolutePath());
1877            } else {
1878                ps.codePath.delete();
1879            }
1880        }
1881        if (ps.resourcePath != null && !ps.resourcePath.equals(ps.codePath)) {
1882            if (ps.resourcePath.isDirectory()) {
1883                FileUtils.deleteContents(ps.resourcePath);
1884            }
1885            ps.resourcePath.delete();
1886        }
1887        mSettings.removePackageLPw(ps.name);
1888    }
1889
1890    static int[] appendInts(int[] cur, int[] add) {
1891        if (add == null) return cur;
1892        if (cur == null) return add;
1893        final int N = add.length;
1894        for (int i=0; i<N; i++) {
1895            cur = appendInt(cur, add[i]);
1896        }
1897        return cur;
1898    }
1899
1900    static int[] removeInts(int[] cur, int[] rem) {
1901        if (rem == null) return cur;
1902        if (cur == null) return cur;
1903        final int N = rem.length;
1904        for (int i=0; i<N; i++) {
1905            cur = removeInt(cur, rem[i]);
1906        }
1907        return cur;
1908    }
1909
1910    PackageInfo generatePackageInfo(PackageParser.Package p, int flags, int userId) {
1911        if (!sUserManager.exists(userId)) return null;
1912        final PackageSetting ps = (PackageSetting) p.mExtras;
1913        if (ps == null) {
1914            return null;
1915        }
1916        final GrantedPermissions gp = ps.sharedUser != null ? ps.sharedUser : ps;
1917        final PackageUserState state = ps.readUserState(userId);
1918        return PackageParser.generatePackageInfo(p, gp.gids, flags,
1919                ps.firstInstallTime, ps.lastUpdateTime, gp.grantedPermissions,
1920                state, userId);
1921    }
1922
1923    @Override
1924    public boolean isPackageAvailable(String packageName, int userId) {
1925        if (!sUserManager.exists(userId)) return false;
1926        enforceCrossUserPermission(Binder.getCallingUid(), userId, false, false, "is package available");
1927        synchronized (mPackages) {
1928            PackageParser.Package p = mPackages.get(packageName);
1929            if (p != null) {
1930                final PackageSetting ps = (PackageSetting) p.mExtras;
1931                if (ps != null) {
1932                    final PackageUserState state = ps.readUserState(userId);
1933                    if (state != null) {
1934                        return PackageParser.isAvailable(state);
1935                    }
1936                }
1937            }
1938        }
1939        return false;
1940    }
1941
1942    @Override
1943    public PackageInfo getPackageInfo(String packageName, int flags, int userId) {
1944        if (!sUserManager.exists(userId)) return null;
1945        enforceCrossUserPermission(Binder.getCallingUid(), userId, false, false, "get package info");
1946        // reader
1947        synchronized (mPackages) {
1948            PackageParser.Package p = mPackages.get(packageName);
1949            if (DEBUG_PACKAGE_INFO)
1950                Log.v(TAG, "getPackageInfo " + packageName + ": " + p);
1951            if (p != null) {
1952                return generatePackageInfo(p, flags, userId);
1953            }
1954            if((flags & PackageManager.GET_UNINSTALLED_PACKAGES) != 0) {
1955                return generatePackageInfoFromSettingsLPw(packageName, flags, userId);
1956            }
1957        }
1958        return null;
1959    }
1960
1961    @Override
1962    public String[] currentToCanonicalPackageNames(String[] names) {
1963        String[] out = new String[names.length];
1964        // reader
1965        synchronized (mPackages) {
1966            for (int i=names.length-1; i>=0; i--) {
1967                PackageSetting ps = mSettings.mPackages.get(names[i]);
1968                out[i] = ps != null && ps.realName != null ? ps.realName : names[i];
1969            }
1970        }
1971        return out;
1972    }
1973
1974    @Override
1975    public String[] canonicalToCurrentPackageNames(String[] names) {
1976        String[] out = new String[names.length];
1977        // reader
1978        synchronized (mPackages) {
1979            for (int i=names.length-1; i>=0; i--) {
1980                String cur = mSettings.mRenamedPackages.get(names[i]);
1981                out[i] = cur != null ? cur : names[i];
1982            }
1983        }
1984        return out;
1985    }
1986
1987    @Override
1988    public int getPackageUid(String packageName, int userId) {
1989        if (!sUserManager.exists(userId)) return -1;
1990        enforceCrossUserPermission(Binder.getCallingUid(), userId, false, false, "get package uid");
1991        // reader
1992        synchronized (mPackages) {
1993            PackageParser.Package p = mPackages.get(packageName);
1994            if(p != null) {
1995                return UserHandle.getUid(userId, p.applicationInfo.uid);
1996            }
1997            PackageSetting ps = mSettings.mPackages.get(packageName);
1998            if((ps == null) || (ps.pkg == null) || (ps.pkg.applicationInfo == null)) {
1999                return -1;
2000            }
2001            p = ps.pkg;
2002            return p != null ? UserHandle.getUid(userId, p.applicationInfo.uid) : -1;
2003        }
2004    }
2005
2006    @Override
2007    public int[] getPackageGids(String packageName) {
2008        // reader
2009        synchronized (mPackages) {
2010            PackageParser.Package p = mPackages.get(packageName);
2011            if (DEBUG_PACKAGE_INFO)
2012                Log.v(TAG, "getPackageGids" + packageName + ": " + p);
2013            if (p != null) {
2014                final PackageSetting ps = (PackageSetting)p.mExtras;
2015                return ps.getGids();
2016            }
2017        }
2018        // stupid thing to indicate an error.
2019        return new int[0];
2020    }
2021
2022    static final PermissionInfo generatePermissionInfo(
2023            BasePermission bp, int flags) {
2024        if (bp.perm != null) {
2025            return PackageParser.generatePermissionInfo(bp.perm, flags);
2026        }
2027        PermissionInfo pi = new PermissionInfo();
2028        pi.name = bp.name;
2029        pi.packageName = bp.sourcePackage;
2030        pi.nonLocalizedLabel = bp.name;
2031        pi.protectionLevel = bp.protectionLevel;
2032        return pi;
2033    }
2034
2035    @Override
2036    public PermissionInfo getPermissionInfo(String name, int flags) {
2037        // reader
2038        synchronized (mPackages) {
2039            final BasePermission p = mSettings.mPermissions.get(name);
2040            if (p != null) {
2041                return generatePermissionInfo(p, flags);
2042            }
2043            return null;
2044        }
2045    }
2046
2047    @Override
2048    public List<PermissionInfo> queryPermissionsByGroup(String group, int flags) {
2049        // reader
2050        synchronized (mPackages) {
2051            ArrayList<PermissionInfo> out = new ArrayList<PermissionInfo>(10);
2052            for (BasePermission p : mSettings.mPermissions.values()) {
2053                if (group == null) {
2054                    if (p.perm == null || p.perm.info.group == null) {
2055                        out.add(generatePermissionInfo(p, flags));
2056                    }
2057                } else {
2058                    if (p.perm != null && group.equals(p.perm.info.group)) {
2059                        out.add(PackageParser.generatePermissionInfo(p.perm, flags));
2060                    }
2061                }
2062            }
2063
2064            if (out.size() > 0) {
2065                return out;
2066            }
2067            return mPermissionGroups.containsKey(group) ? out : null;
2068        }
2069    }
2070
2071    @Override
2072    public PermissionGroupInfo getPermissionGroupInfo(String name, int flags) {
2073        // reader
2074        synchronized (mPackages) {
2075            return PackageParser.generatePermissionGroupInfo(
2076                    mPermissionGroups.get(name), flags);
2077        }
2078    }
2079
2080    @Override
2081    public List<PermissionGroupInfo> getAllPermissionGroups(int flags) {
2082        // reader
2083        synchronized (mPackages) {
2084            final int N = mPermissionGroups.size();
2085            ArrayList<PermissionGroupInfo> out
2086                    = new ArrayList<PermissionGroupInfo>(N);
2087            for (PackageParser.PermissionGroup pg : mPermissionGroups.values()) {
2088                out.add(PackageParser.generatePermissionGroupInfo(pg, flags));
2089            }
2090            return out;
2091        }
2092    }
2093
2094    private ApplicationInfo generateApplicationInfoFromSettingsLPw(String packageName, int flags,
2095            int userId) {
2096        if (!sUserManager.exists(userId)) return null;
2097        PackageSetting ps = mSettings.mPackages.get(packageName);
2098        if (ps != null) {
2099            if (ps.pkg == null) {
2100                PackageInfo pInfo = generatePackageInfoFromSettingsLPw(packageName,
2101                        flags, userId);
2102                if (pInfo != null) {
2103                    return pInfo.applicationInfo;
2104                }
2105                return null;
2106            }
2107            return PackageParser.generateApplicationInfo(ps.pkg, flags,
2108                    ps.readUserState(userId), userId);
2109        }
2110        return null;
2111    }
2112
2113    private PackageInfo generatePackageInfoFromSettingsLPw(String packageName, int flags,
2114            int userId) {
2115        if (!sUserManager.exists(userId)) return null;
2116        PackageSetting ps = mSettings.mPackages.get(packageName);
2117        if (ps != null) {
2118            PackageParser.Package pkg = ps.pkg;
2119            if (pkg == null) {
2120                if ((flags & PackageManager.GET_UNINSTALLED_PACKAGES) == 0) {
2121                    return null;
2122                }
2123                // Only data remains, so we aren't worried about code paths
2124                pkg = new PackageParser.Package(packageName);
2125                pkg.applicationInfo.packageName = packageName;
2126                pkg.applicationInfo.flags = ps.pkgFlags | ApplicationInfo.FLAG_IS_DATA_ONLY;
2127                pkg.applicationInfo.privateFlags = ps.pkgPrivateFlags;
2128                pkg.applicationInfo.dataDir =
2129                        getDataPathForPackage(packageName, 0).getPath();
2130                pkg.applicationInfo.primaryCpuAbi = ps.primaryCpuAbiString;
2131                pkg.applicationInfo.secondaryCpuAbi = ps.secondaryCpuAbiString;
2132            }
2133            return generatePackageInfo(pkg, flags, userId);
2134        }
2135        return null;
2136    }
2137
2138    @Override
2139    public ApplicationInfo getApplicationInfo(String packageName, int flags, int userId) {
2140        if (!sUserManager.exists(userId)) return null;
2141        enforceCrossUserPermission(Binder.getCallingUid(), userId, false, false, "get application info");
2142        // writer
2143        synchronized (mPackages) {
2144            PackageParser.Package p = mPackages.get(packageName);
2145            if (DEBUG_PACKAGE_INFO) Log.v(
2146                    TAG, "getApplicationInfo " + packageName
2147                    + ": " + p);
2148            if (p != null) {
2149                PackageSetting ps = mSettings.mPackages.get(packageName);
2150                if (ps == null) return null;
2151                // Note: isEnabledLP() does not apply here - always return info
2152                return PackageParser.generateApplicationInfo(
2153                        p, flags, ps.readUserState(userId), userId);
2154            }
2155            if ("android".equals(packageName)||"system".equals(packageName)) {
2156                return mAndroidApplication;
2157            }
2158            if ((flags & PackageManager.GET_UNINSTALLED_PACKAGES) != 0) {
2159                return generateApplicationInfoFromSettingsLPw(packageName, flags, userId);
2160            }
2161        }
2162        return null;
2163    }
2164
2165
2166    @Override
2167    public void freeStorageAndNotify(final long freeStorageSize, final IPackageDataObserver observer) {
2168        mContext.enforceCallingOrSelfPermission(
2169                android.Manifest.permission.CLEAR_APP_CACHE, null);
2170        // Queue up an async operation since clearing cache may take a little while.
2171        mHandler.post(new Runnable() {
2172            public void run() {
2173                mHandler.removeCallbacks(this);
2174                int retCode = -1;
2175                synchronized (mInstallLock) {
2176                    retCode = mInstaller.freeCache(freeStorageSize);
2177                    if (retCode < 0) {
2178                        Slog.w(TAG, "Couldn't clear application caches");
2179                    }
2180                }
2181                if (observer != null) {
2182                    try {
2183                        observer.onRemoveCompleted(null, (retCode >= 0));
2184                    } catch (RemoteException e) {
2185                        Slog.w(TAG, "RemoveException when invoking call back");
2186                    }
2187                }
2188            }
2189        });
2190    }
2191
2192    @Override
2193    public void freeStorage(final long freeStorageSize, final IntentSender pi) {
2194        mContext.enforceCallingOrSelfPermission(
2195                android.Manifest.permission.CLEAR_APP_CACHE, null);
2196        // Queue up an async operation since clearing cache may take a little while.
2197        mHandler.post(new Runnable() {
2198            public void run() {
2199                mHandler.removeCallbacks(this);
2200                int retCode = -1;
2201                synchronized (mInstallLock) {
2202                    retCode = mInstaller.freeCache(freeStorageSize);
2203                    if (retCode < 0) {
2204                        Slog.w(TAG, "Couldn't clear application caches");
2205                    }
2206                }
2207                if(pi != null) {
2208                    try {
2209                        // Callback via pending intent
2210                        int code = (retCode >= 0) ? 1 : 0;
2211                        pi.sendIntent(null, code, null,
2212                                null, null);
2213                    } catch (SendIntentException e1) {
2214                        Slog.i(TAG, "Failed to send pending intent");
2215                    }
2216                }
2217            }
2218        });
2219    }
2220
2221    void freeStorage(long freeStorageSize) throws IOException {
2222        synchronized (mInstallLock) {
2223            if (mInstaller.freeCache(freeStorageSize) < 0) {
2224                throw new IOException("Failed to free enough space");
2225            }
2226        }
2227    }
2228
2229    @Override
2230    public ActivityInfo getActivityInfo(ComponentName component, int flags, int userId) {
2231        if (!sUserManager.exists(userId)) return null;
2232        enforceCrossUserPermission(Binder.getCallingUid(), userId, false, false, "get activity info");
2233        synchronized (mPackages) {
2234            PackageParser.Activity a = mActivities.mActivities.get(component);
2235
2236            if (DEBUG_PACKAGE_INFO) Log.v(TAG, "getActivityInfo " + component + ": " + a);
2237            if (a != null && mSettings.isEnabledLPr(a.info, flags, userId)) {
2238                PackageSetting ps = mSettings.mPackages.get(component.getPackageName());
2239                if (ps == null) return null;
2240                return PackageParser.generateActivityInfo(a, flags, ps.readUserState(userId),
2241                        userId);
2242            }
2243            if (mResolveComponentName.equals(component)) {
2244                return PackageParser.generateActivityInfo(mResolveActivity, flags,
2245                        new PackageUserState(), userId);
2246            }
2247        }
2248        return null;
2249    }
2250
2251    @Override
2252    public boolean activitySupportsIntent(ComponentName component, Intent intent,
2253            String resolvedType) {
2254        synchronized (mPackages) {
2255            PackageParser.Activity a = mActivities.mActivities.get(component);
2256            if (a == null) {
2257                return false;
2258            }
2259            for (int i=0; i<a.intents.size(); i++) {
2260                if (a.intents.get(i).match(intent.getAction(), resolvedType, intent.getScheme(),
2261                        intent.getData(), intent.getCategories(), TAG) >= 0) {
2262                    return true;
2263                }
2264            }
2265            return false;
2266        }
2267    }
2268
2269    @Override
2270    public ActivityInfo getReceiverInfo(ComponentName component, int flags, int userId) {
2271        if (!sUserManager.exists(userId)) return null;
2272        enforceCrossUserPermission(Binder.getCallingUid(), userId, false, false, "get receiver info");
2273        synchronized (mPackages) {
2274            PackageParser.Activity a = mReceivers.mActivities.get(component);
2275            if (DEBUG_PACKAGE_INFO) Log.v(
2276                TAG, "getReceiverInfo " + component + ": " + a);
2277            if (a != null && mSettings.isEnabledLPr(a.info, flags, userId)) {
2278                PackageSetting ps = mSettings.mPackages.get(component.getPackageName());
2279                if (ps == null) return null;
2280                return PackageParser.generateActivityInfo(a, flags, ps.readUserState(userId),
2281                        userId);
2282            }
2283        }
2284        return null;
2285    }
2286
2287    @Override
2288    public ServiceInfo getServiceInfo(ComponentName component, int flags, int userId) {
2289        if (!sUserManager.exists(userId)) return null;
2290        enforceCrossUserPermission(Binder.getCallingUid(), userId, false, false, "get service info");
2291        synchronized (mPackages) {
2292            PackageParser.Service s = mServices.mServices.get(component);
2293            if (DEBUG_PACKAGE_INFO) Log.v(
2294                TAG, "getServiceInfo " + component + ": " + s);
2295            if (s != null && mSettings.isEnabledLPr(s.info, flags, userId)) {
2296                PackageSetting ps = mSettings.mPackages.get(component.getPackageName());
2297                if (ps == null) return null;
2298                return PackageParser.generateServiceInfo(s, flags, ps.readUserState(userId),
2299                        userId);
2300            }
2301        }
2302        return null;
2303    }
2304
2305    @Override
2306    public ProviderInfo getProviderInfo(ComponentName component, int flags, int userId) {
2307        if (!sUserManager.exists(userId)) return null;
2308        enforceCrossUserPermission(Binder.getCallingUid(), userId, false, false, "get provider info");
2309        synchronized (mPackages) {
2310            PackageParser.Provider p = mProviders.mProviders.get(component);
2311            if (DEBUG_PACKAGE_INFO) Log.v(
2312                TAG, "getProviderInfo " + component + ": " + p);
2313            if (p != null && mSettings.isEnabledLPr(p.info, flags, userId)) {
2314                PackageSetting ps = mSettings.mPackages.get(component.getPackageName());
2315                if (ps == null) return null;
2316                return PackageParser.generateProviderInfo(p, flags, ps.readUserState(userId),
2317                        userId);
2318            }
2319        }
2320        return null;
2321    }
2322
2323    @Override
2324    public String[] getSystemSharedLibraryNames() {
2325        Set<String> libSet;
2326        synchronized (mPackages) {
2327            libSet = mSharedLibraries.keySet();
2328            int size = libSet.size();
2329            if (size > 0) {
2330                String[] libs = new String[size];
2331                libSet.toArray(libs);
2332                return libs;
2333            }
2334        }
2335        return null;
2336    }
2337
2338    /**
2339     * @hide
2340     */
2341    PackageParser.Package findSharedNonSystemLibrary(String libName) {
2342        synchronized (mPackages) {
2343            PackageManagerService.SharedLibraryEntry lib = mSharedLibraries.get(libName);
2344            if (lib != null && lib.apk != null) {
2345                return mPackages.get(lib.apk);
2346            }
2347        }
2348        return null;
2349    }
2350
2351    @Override
2352    public FeatureInfo[] getSystemAvailableFeatures() {
2353        Collection<FeatureInfo> featSet;
2354        synchronized (mPackages) {
2355            featSet = mAvailableFeatures.values();
2356            int size = featSet.size();
2357            if (size > 0) {
2358                FeatureInfo[] features = new FeatureInfo[size+1];
2359                featSet.toArray(features);
2360                FeatureInfo fi = new FeatureInfo();
2361                fi.reqGlEsVersion = SystemProperties.getInt("ro.opengles.version",
2362                        FeatureInfo.GL_ES_VERSION_UNDEFINED);
2363                features[size] = fi;
2364                return features;
2365            }
2366        }
2367        return null;
2368    }
2369
2370    @Override
2371    public boolean hasSystemFeature(String name) {
2372        synchronized (mPackages) {
2373            return mAvailableFeatures.containsKey(name);
2374        }
2375    }
2376
2377    private void checkValidCaller(int uid, int userId) {
2378        if (UserHandle.getUserId(uid) == userId || uid == Process.SYSTEM_UID || uid == 0)
2379            return;
2380
2381        throw new SecurityException("Caller uid=" + uid
2382                + " is not privileged to communicate with user=" + userId);
2383    }
2384
2385    @Override
2386    public int checkPermission(String permName, String pkgName) {
2387        synchronized (mPackages) {
2388            PackageParser.Package p = mPackages.get(pkgName);
2389            if (p != null && p.mExtras != null) {
2390                PackageSetting ps = (PackageSetting)p.mExtras;
2391                if (ps.sharedUser != null) {
2392                    if (ps.sharedUser.grantedPermissions.contains(permName)) {
2393                        return PackageManager.PERMISSION_GRANTED;
2394                    }
2395                } else if (ps.grantedPermissions.contains(permName)) {
2396                    return PackageManager.PERMISSION_GRANTED;
2397                }
2398            }
2399        }
2400        return PackageManager.PERMISSION_DENIED;
2401    }
2402
2403    @Override
2404    public int checkUidPermission(String permName, int uid) {
2405        synchronized (mPackages) {
2406            Object obj = mSettings.getUserIdLPr(UserHandle.getAppId(uid));
2407            if (obj != null) {
2408                GrantedPermissions gp = (GrantedPermissions)obj;
2409                if (gp.grantedPermissions.contains(permName)) {
2410                    return PackageManager.PERMISSION_GRANTED;
2411                }
2412            } else {
2413                ArraySet<String> perms = mSystemPermissions.get(uid);
2414                if (perms != null && perms.contains(permName)) {
2415                    return PackageManager.PERMISSION_GRANTED;
2416                }
2417            }
2418        }
2419        return PackageManager.PERMISSION_DENIED;
2420    }
2421
2422    /**
2423     * Checks if the request is from the system or an app that has INTERACT_ACROSS_USERS
2424     * or INTERACT_ACROSS_USERS_FULL permissions, if the userid is not for the caller.
2425     * @param checkShell TODO(yamasani):
2426     * @param message the message to log on security exception
2427     */
2428    void enforceCrossUserPermission(int callingUid, int userId, boolean requireFullPermission,
2429            boolean checkShell, String message) {
2430        if (userId < 0) {
2431            throw new IllegalArgumentException("Invalid userId " + userId);
2432        }
2433        if (checkShell) {
2434            enforceShellRestriction(UserManager.DISALLOW_DEBUGGING_FEATURES, callingUid, userId);
2435        }
2436        if (userId == UserHandle.getUserId(callingUid)) return;
2437        if (callingUid != Process.SYSTEM_UID && callingUid != 0) {
2438            if (requireFullPermission) {
2439                mContext.enforceCallingOrSelfPermission(
2440                        android.Manifest.permission.INTERACT_ACROSS_USERS_FULL, message);
2441            } else {
2442                try {
2443                    mContext.enforceCallingOrSelfPermission(
2444                            android.Manifest.permission.INTERACT_ACROSS_USERS_FULL, message);
2445                } catch (SecurityException se) {
2446                    mContext.enforceCallingOrSelfPermission(
2447                            android.Manifest.permission.INTERACT_ACROSS_USERS, message);
2448                }
2449            }
2450        }
2451    }
2452
2453    void enforceShellRestriction(String restriction, int callingUid, int userHandle) {
2454        if (callingUid == Process.SHELL_UID) {
2455            if (userHandle >= 0
2456                    && sUserManager.hasUserRestriction(restriction, userHandle)) {
2457                throw new SecurityException("Shell does not have permission to access user "
2458                        + userHandle);
2459            } else if (userHandle < 0) {
2460                Slog.e(TAG, "Unable to check shell permission for user " + userHandle + "\n\t"
2461                        + Debug.getCallers(3));
2462            }
2463        }
2464    }
2465
2466    private BasePermission findPermissionTreeLP(String permName) {
2467        for(BasePermission bp : mSettings.mPermissionTrees.values()) {
2468            if (permName.startsWith(bp.name) &&
2469                    permName.length() > bp.name.length() &&
2470                    permName.charAt(bp.name.length()) == '.') {
2471                return bp;
2472            }
2473        }
2474        return null;
2475    }
2476
2477    private BasePermission checkPermissionTreeLP(String permName) {
2478        if (permName != null) {
2479            BasePermission bp = findPermissionTreeLP(permName);
2480            if (bp != null) {
2481                if (bp.uid == UserHandle.getAppId(Binder.getCallingUid())) {
2482                    return bp;
2483                }
2484                throw new SecurityException("Calling uid "
2485                        + Binder.getCallingUid()
2486                        + " is not allowed to add to permission tree "
2487                        + bp.name + " owned by uid " + bp.uid);
2488            }
2489        }
2490        throw new SecurityException("No permission tree found for " + permName);
2491    }
2492
2493    static boolean compareStrings(CharSequence s1, CharSequence s2) {
2494        if (s1 == null) {
2495            return s2 == null;
2496        }
2497        if (s2 == null) {
2498            return false;
2499        }
2500        if (s1.getClass() != s2.getClass()) {
2501            return false;
2502        }
2503        return s1.equals(s2);
2504    }
2505
2506    static boolean comparePermissionInfos(PermissionInfo pi1, PermissionInfo pi2) {
2507        if (pi1.icon != pi2.icon) return false;
2508        if (pi1.logo != pi2.logo) return false;
2509        if (pi1.protectionLevel != pi2.protectionLevel) return false;
2510        if (!compareStrings(pi1.name, pi2.name)) return false;
2511        if (!compareStrings(pi1.nonLocalizedLabel, pi2.nonLocalizedLabel)) return false;
2512        // We'll take care of setting this one.
2513        if (!compareStrings(pi1.packageName, pi2.packageName)) return false;
2514        // These are not currently stored in settings.
2515        //if (!compareStrings(pi1.group, pi2.group)) return false;
2516        //if (!compareStrings(pi1.nonLocalizedDescription, pi2.nonLocalizedDescription)) return false;
2517        //if (pi1.labelRes != pi2.labelRes) return false;
2518        //if (pi1.descriptionRes != pi2.descriptionRes) return false;
2519        return true;
2520    }
2521
2522    int permissionInfoFootprint(PermissionInfo info) {
2523        int size = info.name.length();
2524        if (info.nonLocalizedLabel != null) size += info.nonLocalizedLabel.length();
2525        if (info.nonLocalizedDescription != null) size += info.nonLocalizedDescription.length();
2526        return size;
2527    }
2528
2529    int calculateCurrentPermissionFootprintLocked(BasePermission tree) {
2530        int size = 0;
2531        for (BasePermission perm : mSettings.mPermissions.values()) {
2532            if (perm.uid == tree.uid) {
2533                size += perm.name.length() + permissionInfoFootprint(perm.perm.info);
2534            }
2535        }
2536        return size;
2537    }
2538
2539    void enforcePermissionCapLocked(PermissionInfo info, BasePermission tree) {
2540        // We calculate the max size of permissions defined by this uid and throw
2541        // if that plus the size of 'info' would exceed our stated maximum.
2542        if (tree.uid != Process.SYSTEM_UID) {
2543            final int curTreeSize = calculateCurrentPermissionFootprintLocked(tree);
2544            if (curTreeSize + permissionInfoFootprint(info) > MAX_PERMISSION_TREE_FOOTPRINT) {
2545                throw new SecurityException("Permission tree size cap exceeded");
2546            }
2547        }
2548    }
2549
2550    boolean addPermissionLocked(PermissionInfo info, boolean async) {
2551        if (info.labelRes == 0 && info.nonLocalizedLabel == null) {
2552            throw new SecurityException("Label must be specified in permission");
2553        }
2554        BasePermission tree = checkPermissionTreeLP(info.name);
2555        BasePermission bp = mSettings.mPermissions.get(info.name);
2556        boolean added = bp == null;
2557        boolean changed = true;
2558        int fixedLevel = PermissionInfo.fixProtectionLevel(info.protectionLevel);
2559        if (added) {
2560            enforcePermissionCapLocked(info, tree);
2561            bp = new BasePermission(info.name, tree.sourcePackage,
2562                    BasePermission.TYPE_DYNAMIC);
2563        } else if (bp.type != BasePermission.TYPE_DYNAMIC) {
2564            throw new SecurityException(
2565                    "Not allowed to modify non-dynamic permission "
2566                    + info.name);
2567        } else {
2568            if (bp.protectionLevel == fixedLevel
2569                    && bp.perm.owner.equals(tree.perm.owner)
2570                    && bp.uid == tree.uid
2571                    && comparePermissionInfos(bp.perm.info, info)) {
2572                changed = false;
2573            }
2574        }
2575        bp.protectionLevel = fixedLevel;
2576        info = new PermissionInfo(info);
2577        info.protectionLevel = fixedLevel;
2578        bp.perm = new PackageParser.Permission(tree.perm.owner, info);
2579        bp.perm.info.packageName = tree.perm.info.packageName;
2580        bp.uid = tree.uid;
2581        if (added) {
2582            mSettings.mPermissions.put(info.name, bp);
2583        }
2584        if (changed) {
2585            if (!async) {
2586                mSettings.writeLPr();
2587            } else {
2588                scheduleWriteSettingsLocked();
2589            }
2590        }
2591        return added;
2592    }
2593
2594    @Override
2595    public boolean addPermission(PermissionInfo info) {
2596        synchronized (mPackages) {
2597            return addPermissionLocked(info, false);
2598        }
2599    }
2600
2601    @Override
2602    public boolean addPermissionAsync(PermissionInfo info) {
2603        synchronized (mPackages) {
2604            return addPermissionLocked(info, true);
2605        }
2606    }
2607
2608    @Override
2609    public void removePermission(String name) {
2610        synchronized (mPackages) {
2611            checkPermissionTreeLP(name);
2612            BasePermission bp = mSettings.mPermissions.get(name);
2613            if (bp != null) {
2614                if (bp.type != BasePermission.TYPE_DYNAMIC) {
2615                    throw new SecurityException(
2616                            "Not allowed to modify non-dynamic permission "
2617                            + name);
2618                }
2619                mSettings.mPermissions.remove(name);
2620                mSettings.writeLPr();
2621            }
2622        }
2623    }
2624
2625    private static void checkGrantRevokePermissions(PackageParser.Package pkg, BasePermission bp) {
2626        int index = pkg.requestedPermissions.indexOf(bp.name);
2627        if (index == -1) {
2628            throw new SecurityException("Package " + pkg.packageName
2629                    + " has not requested permission " + bp.name);
2630        }
2631        boolean isNormal =
2632                ((bp.protectionLevel&PermissionInfo.PROTECTION_MASK_BASE)
2633                        == PermissionInfo.PROTECTION_NORMAL);
2634        boolean isDangerous =
2635                ((bp.protectionLevel&PermissionInfo.PROTECTION_MASK_BASE)
2636                        == PermissionInfo.PROTECTION_DANGEROUS);
2637        boolean isDevelopment =
2638                ((bp.protectionLevel&PermissionInfo.PROTECTION_FLAG_DEVELOPMENT) != 0);
2639
2640        if (!isNormal && !isDangerous && !isDevelopment) {
2641            throw new SecurityException("Permission " + bp.name
2642                    + " is not a changeable permission type");
2643        }
2644
2645        if (isNormal || isDangerous) {
2646            if (pkg.requestedPermissionsRequired.get(index)) {
2647                throw new SecurityException("Can't change " + bp.name
2648                        + ". It is required by the application");
2649            }
2650        }
2651    }
2652
2653    @Override
2654    public void grantPermission(String packageName, String permissionName) {
2655        mContext.enforceCallingOrSelfPermission(
2656                android.Manifest.permission.GRANT_REVOKE_PERMISSIONS, null);
2657        synchronized (mPackages) {
2658            final PackageParser.Package pkg = mPackages.get(packageName);
2659            if (pkg == null) {
2660                throw new IllegalArgumentException("Unknown package: " + packageName);
2661            }
2662            final BasePermission bp = mSettings.mPermissions.get(permissionName);
2663            if (bp == null) {
2664                throw new IllegalArgumentException("Unknown permission: " + permissionName);
2665            }
2666
2667            checkGrantRevokePermissions(pkg, bp);
2668
2669            final PackageSetting ps = (PackageSetting) pkg.mExtras;
2670            if (ps == null) {
2671                return;
2672            }
2673            final GrantedPermissions gp = (ps.sharedUser != null) ? ps.sharedUser : ps;
2674            if (gp.grantedPermissions.add(permissionName)) {
2675                if (ps.haveGids) {
2676                    gp.gids = appendInts(gp.gids, bp.gids);
2677                }
2678                mSettings.writeLPr();
2679            }
2680        }
2681    }
2682
2683    @Override
2684    public void revokePermission(String packageName, String permissionName) {
2685        int changedAppId = -1;
2686
2687        synchronized (mPackages) {
2688            final PackageParser.Package pkg = mPackages.get(packageName);
2689            if (pkg == null) {
2690                throw new IllegalArgumentException("Unknown package: " + packageName);
2691            }
2692            if (pkg.applicationInfo.uid != Binder.getCallingUid()) {
2693                mContext.enforceCallingOrSelfPermission(
2694                        android.Manifest.permission.GRANT_REVOKE_PERMISSIONS, null);
2695            }
2696            final BasePermission bp = mSettings.mPermissions.get(permissionName);
2697            if (bp == null) {
2698                throw new IllegalArgumentException("Unknown permission: " + permissionName);
2699            }
2700
2701            checkGrantRevokePermissions(pkg, bp);
2702
2703            final PackageSetting ps = (PackageSetting) pkg.mExtras;
2704            if (ps == null) {
2705                return;
2706            }
2707            final GrantedPermissions gp = (ps.sharedUser != null) ? ps.sharedUser : ps;
2708            if (gp.grantedPermissions.remove(permissionName)) {
2709                gp.grantedPermissions.remove(permissionName);
2710                if (ps.haveGids) {
2711                    gp.gids = removeInts(gp.gids, bp.gids);
2712                }
2713                mSettings.writeLPr();
2714                changedAppId = ps.appId;
2715            }
2716        }
2717
2718        if (changedAppId >= 0) {
2719            // We changed the perm on someone, kill its processes.
2720            IActivityManager am = ActivityManagerNative.getDefault();
2721            if (am != null) {
2722                final int callingUserId = UserHandle.getCallingUserId();
2723                final long ident = Binder.clearCallingIdentity();
2724                try {
2725                    //XXX we should only revoke for the calling user's app permissions,
2726                    // but for now we impact all users.
2727                    //am.killUid(UserHandle.getUid(callingUserId, changedAppId),
2728                    //        "revoke " + permissionName);
2729                    int[] users = sUserManager.getUserIds();
2730                    for (int user : users) {
2731                        am.killUid(UserHandle.getUid(user, changedAppId),
2732                                "revoke " + permissionName);
2733                    }
2734                } catch (RemoteException e) {
2735                } finally {
2736                    Binder.restoreCallingIdentity(ident);
2737                }
2738            }
2739        }
2740    }
2741
2742    @Override
2743    public boolean isProtectedBroadcast(String actionName) {
2744        synchronized (mPackages) {
2745            return mProtectedBroadcasts.contains(actionName);
2746        }
2747    }
2748
2749    @Override
2750    public int checkSignatures(String pkg1, String pkg2) {
2751        synchronized (mPackages) {
2752            final PackageParser.Package p1 = mPackages.get(pkg1);
2753            final PackageParser.Package p2 = mPackages.get(pkg2);
2754            if (p1 == null || p1.mExtras == null
2755                    || p2 == null || p2.mExtras == null) {
2756                return PackageManager.SIGNATURE_UNKNOWN_PACKAGE;
2757            }
2758            return compareSignatures(p1.mSignatures, p2.mSignatures);
2759        }
2760    }
2761
2762    @Override
2763    public int checkUidSignatures(int uid1, int uid2) {
2764        // Map to base uids.
2765        uid1 = UserHandle.getAppId(uid1);
2766        uid2 = UserHandle.getAppId(uid2);
2767        // reader
2768        synchronized (mPackages) {
2769            Signature[] s1;
2770            Signature[] s2;
2771            Object obj = mSettings.getUserIdLPr(uid1);
2772            if (obj != null) {
2773                if (obj instanceof SharedUserSetting) {
2774                    s1 = ((SharedUserSetting)obj).signatures.mSignatures;
2775                } else if (obj instanceof PackageSetting) {
2776                    s1 = ((PackageSetting)obj).signatures.mSignatures;
2777                } else {
2778                    return PackageManager.SIGNATURE_UNKNOWN_PACKAGE;
2779                }
2780            } else {
2781                return PackageManager.SIGNATURE_UNKNOWN_PACKAGE;
2782            }
2783            obj = mSettings.getUserIdLPr(uid2);
2784            if (obj != null) {
2785                if (obj instanceof SharedUserSetting) {
2786                    s2 = ((SharedUserSetting)obj).signatures.mSignatures;
2787                } else if (obj instanceof PackageSetting) {
2788                    s2 = ((PackageSetting)obj).signatures.mSignatures;
2789                } else {
2790                    return PackageManager.SIGNATURE_UNKNOWN_PACKAGE;
2791                }
2792            } else {
2793                return PackageManager.SIGNATURE_UNKNOWN_PACKAGE;
2794            }
2795            return compareSignatures(s1, s2);
2796        }
2797    }
2798
2799    /**
2800     * Compares two sets of signatures. Returns:
2801     * <br />
2802     * {@link PackageManager#SIGNATURE_NEITHER_SIGNED}: if both signature sets are null,
2803     * <br />
2804     * {@link PackageManager#SIGNATURE_FIRST_NOT_SIGNED}: if the first signature set is null,
2805     * <br />
2806     * {@link PackageManager#SIGNATURE_SECOND_NOT_SIGNED}: if the second signature set is null,
2807     * <br />
2808     * {@link PackageManager#SIGNATURE_MATCH}: if the two signature sets are identical,
2809     * <br />
2810     * {@link PackageManager#SIGNATURE_NO_MATCH}: if the two signature sets differ.
2811     */
2812    static int compareSignatures(Signature[] s1, Signature[] s2) {
2813        if (s1 == null) {
2814            return s2 == null
2815                    ? PackageManager.SIGNATURE_NEITHER_SIGNED
2816                    : PackageManager.SIGNATURE_FIRST_NOT_SIGNED;
2817        }
2818
2819        if (s2 == null) {
2820            return PackageManager.SIGNATURE_SECOND_NOT_SIGNED;
2821        }
2822
2823        if (s1.length != s2.length) {
2824            return PackageManager.SIGNATURE_NO_MATCH;
2825        }
2826
2827        // Since both signature sets are of size 1, we can compare without HashSets.
2828        if (s1.length == 1) {
2829            return s1[0].equals(s2[0]) ?
2830                    PackageManager.SIGNATURE_MATCH :
2831                    PackageManager.SIGNATURE_NO_MATCH;
2832        }
2833
2834        ArraySet<Signature> set1 = new ArraySet<Signature>();
2835        for (Signature sig : s1) {
2836            set1.add(sig);
2837        }
2838        ArraySet<Signature> set2 = new ArraySet<Signature>();
2839        for (Signature sig : s2) {
2840            set2.add(sig);
2841        }
2842        // Make sure s2 contains all signatures in s1.
2843        if (set1.equals(set2)) {
2844            return PackageManager.SIGNATURE_MATCH;
2845        }
2846        return PackageManager.SIGNATURE_NO_MATCH;
2847    }
2848
2849    /**
2850     * If the database version for this type of package (internal storage or
2851     * external storage) is less than the version where package signatures
2852     * were updated, return true.
2853     */
2854    private boolean isCompatSignatureUpdateNeeded(PackageParser.Package scannedPkg) {
2855        return (isExternal(scannedPkg) && mSettings.isExternalDatabaseVersionOlderThan(
2856                DatabaseVersion.SIGNATURE_END_ENTITY))
2857                || (!isExternal(scannedPkg) && mSettings.isInternalDatabaseVersionOlderThan(
2858                        DatabaseVersion.SIGNATURE_END_ENTITY));
2859    }
2860
2861    /**
2862     * Used for backward compatibility to make sure any packages with
2863     * certificate chains get upgraded to the new style. {@code existingSigs}
2864     * will be in the old format (since they were stored on disk from before the
2865     * system upgrade) and {@code scannedSigs} will be in the newer format.
2866     */
2867    private int compareSignaturesCompat(PackageSignatures existingSigs,
2868            PackageParser.Package scannedPkg) {
2869        if (!isCompatSignatureUpdateNeeded(scannedPkg)) {
2870            return PackageManager.SIGNATURE_NO_MATCH;
2871        }
2872
2873        ArraySet<Signature> existingSet = new ArraySet<Signature>();
2874        for (Signature sig : existingSigs.mSignatures) {
2875            existingSet.add(sig);
2876        }
2877        ArraySet<Signature> scannedCompatSet = new ArraySet<Signature>();
2878        for (Signature sig : scannedPkg.mSignatures) {
2879            try {
2880                Signature[] chainSignatures = sig.getChainSignatures();
2881                for (Signature chainSig : chainSignatures) {
2882                    scannedCompatSet.add(chainSig);
2883                }
2884            } catch (CertificateEncodingException e) {
2885                scannedCompatSet.add(sig);
2886            }
2887        }
2888        /*
2889         * Make sure the expanded scanned set contains all signatures in the
2890         * existing one.
2891         */
2892        if (scannedCompatSet.equals(existingSet)) {
2893            // Migrate the old signatures to the new scheme.
2894            existingSigs.assignSignatures(scannedPkg.mSignatures);
2895            // The new KeySets will be re-added later in the scanning process.
2896            synchronized (mPackages) {
2897                mSettings.mKeySetManagerService.removeAppKeySetDataLPw(scannedPkg.packageName);
2898            }
2899            return PackageManager.SIGNATURE_MATCH;
2900        }
2901        return PackageManager.SIGNATURE_NO_MATCH;
2902    }
2903
2904    private boolean isRecoverSignatureUpdateNeeded(PackageParser.Package scannedPkg) {
2905        if (isExternal(scannedPkg)) {
2906            return mSettings.isExternalDatabaseVersionOlderThan(
2907                    DatabaseVersion.SIGNATURE_MALFORMED_RECOVER);
2908        } else {
2909            return mSettings.isInternalDatabaseVersionOlderThan(
2910                    DatabaseVersion.SIGNATURE_MALFORMED_RECOVER);
2911        }
2912    }
2913
2914    private int compareSignaturesRecover(PackageSignatures existingSigs,
2915            PackageParser.Package scannedPkg) {
2916        if (!isRecoverSignatureUpdateNeeded(scannedPkg)) {
2917            return PackageManager.SIGNATURE_NO_MATCH;
2918        }
2919
2920        String msg = null;
2921        try {
2922            if (Signature.areEffectiveMatch(existingSigs.mSignatures, scannedPkg.mSignatures)) {
2923                logCriticalInfo(Log.INFO, "Recovered effectively matching certificates for "
2924                        + scannedPkg.packageName);
2925                return PackageManager.SIGNATURE_MATCH;
2926            }
2927        } catch (CertificateException e) {
2928            msg = e.getMessage();
2929        }
2930
2931        logCriticalInfo(Log.INFO,
2932                "Failed to recover certificates for " + scannedPkg.packageName + ": " + msg);
2933        return PackageManager.SIGNATURE_NO_MATCH;
2934    }
2935
2936    @Override
2937    public String[] getPackagesForUid(int uid) {
2938        uid = UserHandle.getAppId(uid);
2939        // reader
2940        synchronized (mPackages) {
2941            Object obj = mSettings.getUserIdLPr(uid);
2942            if (obj instanceof SharedUserSetting) {
2943                final SharedUserSetting sus = (SharedUserSetting) obj;
2944                final int N = sus.packages.size();
2945                final String[] res = new String[N];
2946                final Iterator<PackageSetting> it = sus.packages.iterator();
2947                int i = 0;
2948                while (it.hasNext()) {
2949                    res[i++] = it.next().name;
2950                }
2951                return res;
2952            } else if (obj instanceof PackageSetting) {
2953                final PackageSetting ps = (PackageSetting) obj;
2954                return new String[] { ps.name };
2955            }
2956        }
2957        return null;
2958    }
2959
2960    @Override
2961    public String getNameForUid(int uid) {
2962        // reader
2963        synchronized (mPackages) {
2964            Object obj = mSettings.getUserIdLPr(UserHandle.getAppId(uid));
2965            if (obj instanceof SharedUserSetting) {
2966                final SharedUserSetting sus = (SharedUserSetting) obj;
2967                return sus.name + ":" + sus.userId;
2968            } else if (obj instanceof PackageSetting) {
2969                final PackageSetting ps = (PackageSetting) obj;
2970                return ps.name;
2971            }
2972        }
2973        return null;
2974    }
2975
2976    @Override
2977    public int getUidForSharedUser(String sharedUserName) {
2978        if(sharedUserName == null) {
2979            return -1;
2980        }
2981        // reader
2982        synchronized (mPackages) {
2983            final SharedUserSetting suid = mSettings.getSharedUserLPw(sharedUserName, 0, 0, false);
2984            if (suid == null) {
2985                return -1;
2986            }
2987            return suid.userId;
2988        }
2989    }
2990
2991    @Override
2992    public int getFlagsForUid(int uid) {
2993        synchronized (mPackages) {
2994            Object obj = mSettings.getUserIdLPr(UserHandle.getAppId(uid));
2995            if (obj instanceof SharedUserSetting) {
2996                final SharedUserSetting sus = (SharedUserSetting) obj;
2997                return sus.pkgFlags;
2998            } else if (obj instanceof PackageSetting) {
2999                final PackageSetting ps = (PackageSetting) obj;
3000                return ps.pkgFlags;
3001            }
3002        }
3003        return 0;
3004    }
3005
3006    @Override
3007    public int getPrivateFlagsForUid(int uid) {
3008        synchronized (mPackages) {
3009            Object obj = mSettings.getUserIdLPr(UserHandle.getAppId(uid));
3010            if (obj instanceof SharedUserSetting) {
3011                final SharedUserSetting sus = (SharedUserSetting) obj;
3012                return sus.pkgPrivateFlags;
3013            } else if (obj instanceof PackageSetting) {
3014                final PackageSetting ps = (PackageSetting) obj;
3015                return ps.pkgPrivateFlags;
3016            }
3017        }
3018        return 0;
3019    }
3020
3021    @Override
3022    public boolean isUidPrivileged(int uid) {
3023        uid = UserHandle.getAppId(uid);
3024        // reader
3025        synchronized (mPackages) {
3026            Object obj = mSettings.getUserIdLPr(uid);
3027            if (obj instanceof SharedUserSetting) {
3028                final SharedUserSetting sus = (SharedUserSetting) obj;
3029                final Iterator<PackageSetting> it = sus.packages.iterator();
3030                while (it.hasNext()) {
3031                    if (it.next().isPrivileged()) {
3032                        return true;
3033                    }
3034                }
3035            } else if (obj instanceof PackageSetting) {
3036                final PackageSetting ps = (PackageSetting) obj;
3037                return ps.isPrivileged();
3038            }
3039        }
3040        return false;
3041    }
3042
3043    @Override
3044    public String[] getAppOpPermissionPackages(String permissionName) {
3045        synchronized (mPackages) {
3046            ArraySet<String> pkgs = mAppOpPermissionPackages.get(permissionName);
3047            if (pkgs == null) {
3048                return null;
3049            }
3050            return pkgs.toArray(new String[pkgs.size()]);
3051        }
3052    }
3053
3054    @Override
3055    public ResolveInfo resolveIntent(Intent intent, String resolvedType,
3056            int flags, int userId) {
3057        if (!sUserManager.exists(userId)) return null;
3058        enforceCrossUserPermission(Binder.getCallingUid(), userId, false, false, "resolve intent");
3059        List<ResolveInfo> query = queryIntentActivities(intent, resolvedType, flags, userId);
3060        return chooseBestActivity(intent, resolvedType, flags, query, userId);
3061    }
3062
3063    @Override
3064    public void setLastChosenActivity(Intent intent, String resolvedType, int flags,
3065            IntentFilter filter, int match, ComponentName activity) {
3066        final int userId = UserHandle.getCallingUserId();
3067        if (DEBUG_PREFERRED) {
3068            Log.v(TAG, "setLastChosenActivity intent=" + intent
3069                + " resolvedType=" + resolvedType
3070                + " flags=" + flags
3071                + " filter=" + filter
3072                + " match=" + match
3073                + " activity=" + activity);
3074            filter.dump(new PrintStreamPrinter(System.out), "    ");
3075        }
3076        intent.setComponent(null);
3077        List<ResolveInfo> query = queryIntentActivities(intent, resolvedType, flags, userId);
3078        // Find any earlier preferred or last chosen entries and nuke them
3079        findPreferredActivity(intent, resolvedType,
3080                flags, query, 0, false, true, false, userId);
3081        // Add the new activity as the last chosen for this filter
3082        addPreferredActivityInternal(filter, match, null, activity, false, userId,
3083                "Setting last chosen");
3084    }
3085
3086    @Override
3087    public ResolveInfo getLastChosenActivity(Intent intent, String resolvedType, int flags) {
3088        final int userId = UserHandle.getCallingUserId();
3089        if (DEBUG_PREFERRED) Log.v(TAG, "Querying last chosen activity for " + intent);
3090        List<ResolveInfo> query = queryIntentActivities(intent, resolvedType, flags, userId);
3091        return findPreferredActivity(intent, resolvedType, flags, query, 0,
3092                false, false, false, userId);
3093    }
3094
3095    private ResolveInfo chooseBestActivity(Intent intent, String resolvedType,
3096            int flags, List<ResolveInfo> query, int userId) {
3097        if (query != null) {
3098            final int N = query.size();
3099            if (N == 1) {
3100                return query.get(0);
3101            } else if (N > 1) {
3102                final boolean debug = ((intent.getFlags() & Intent.FLAG_DEBUG_LOG_RESOLUTION) != 0);
3103                // If there is more than one activity with the same priority,
3104                // then let the user decide between them.
3105                ResolveInfo r0 = query.get(0);
3106                ResolveInfo r1 = query.get(1);
3107                if (DEBUG_INTENT_MATCHING || debug) {
3108                    Slog.v(TAG, r0.activityInfo.name + "=" + r0.priority + " vs "
3109                            + r1.activityInfo.name + "=" + r1.priority);
3110                }
3111                // If the first activity has a higher priority, or a different
3112                // default, then it is always desireable to pick it.
3113                if (r0.priority != r1.priority
3114                        || r0.preferredOrder != r1.preferredOrder
3115                        || r0.isDefault != r1.isDefault) {
3116                    return query.get(0);
3117                }
3118                // If we have saved a preference for a preferred activity for
3119                // this Intent, use that.
3120                ResolveInfo ri = findPreferredActivity(intent, resolvedType,
3121                        flags, query, r0.priority, true, false, debug, userId);
3122                if (ri != null) {
3123                    return ri;
3124                }
3125                if (userId != 0) {
3126                    ri = new ResolveInfo(mResolveInfo);
3127                    ri.activityInfo = new ActivityInfo(ri.activityInfo);
3128                    ri.activityInfo.applicationInfo = new ApplicationInfo(
3129                            ri.activityInfo.applicationInfo);
3130                    ri.activityInfo.applicationInfo.uid = UserHandle.getUid(userId,
3131                            UserHandle.getAppId(ri.activityInfo.applicationInfo.uid));
3132                    return ri;
3133                }
3134                return mResolveInfo;
3135            }
3136        }
3137        return null;
3138    }
3139
3140    private ResolveInfo findPersistentPreferredActivityLP(Intent intent, String resolvedType,
3141            int flags, List<ResolveInfo> query, boolean debug, int userId) {
3142        final int N = query.size();
3143        PersistentPreferredIntentResolver ppir = mSettings.mPersistentPreferredActivities
3144                .get(userId);
3145        // Get the list of persistent preferred activities that handle the intent
3146        if (DEBUG_PREFERRED || debug) Slog.v(TAG, "Looking for presistent preferred activities...");
3147        List<PersistentPreferredActivity> pprefs = ppir != null
3148                ? ppir.queryIntent(intent, resolvedType,
3149                        (flags & PackageManager.MATCH_DEFAULT_ONLY) != 0, userId)
3150                : null;
3151        if (pprefs != null && pprefs.size() > 0) {
3152            final int M = pprefs.size();
3153            for (int i=0; i<M; i++) {
3154                final PersistentPreferredActivity ppa = pprefs.get(i);
3155                if (DEBUG_PREFERRED || debug) {
3156                    Slog.v(TAG, "Checking PersistentPreferredActivity ds="
3157                            + (ppa.countDataSchemes() > 0 ? ppa.getDataScheme(0) : "<none>")
3158                            + "\n  component=" + ppa.mComponent);
3159                    ppa.dump(new LogPrinter(Log.VERBOSE, TAG, Log.LOG_ID_SYSTEM), "  ");
3160                }
3161                final ActivityInfo ai = getActivityInfo(ppa.mComponent,
3162                        flags | PackageManager.GET_DISABLED_COMPONENTS, userId);
3163                if (DEBUG_PREFERRED || debug) {
3164                    Slog.v(TAG, "Found persistent preferred activity:");
3165                    if (ai != null) {
3166                        ai.dump(new LogPrinter(Log.VERBOSE, TAG, Log.LOG_ID_SYSTEM), "  ");
3167                    } else {
3168                        Slog.v(TAG, "  null");
3169                    }
3170                }
3171                if (ai == null) {
3172                    // This previously registered persistent preferred activity
3173                    // component is no longer known. Ignore it and do NOT remove it.
3174                    continue;
3175                }
3176                for (int j=0; j<N; j++) {
3177                    final ResolveInfo ri = query.get(j);
3178                    if (!ri.activityInfo.applicationInfo.packageName
3179                            .equals(ai.applicationInfo.packageName)) {
3180                        continue;
3181                    }
3182                    if (!ri.activityInfo.name.equals(ai.name)) {
3183                        continue;
3184                    }
3185                    //  Found a persistent preference that can handle the intent.
3186                    if (DEBUG_PREFERRED || debug) {
3187                        Slog.v(TAG, "Returning persistent preferred activity: " +
3188                                ri.activityInfo.packageName + "/" + ri.activityInfo.name);
3189                    }
3190                    return ri;
3191                }
3192            }
3193        }
3194        return null;
3195    }
3196
3197    ResolveInfo findPreferredActivity(Intent intent, String resolvedType, int flags,
3198            List<ResolveInfo> query, int priority, boolean always,
3199            boolean removeMatches, boolean debug, int userId) {
3200        if (!sUserManager.exists(userId)) return null;
3201        // writer
3202        synchronized (mPackages) {
3203            if (intent.getSelector() != null) {
3204                intent = intent.getSelector();
3205            }
3206            if (DEBUG_PREFERRED) intent.addFlags(Intent.FLAG_DEBUG_LOG_RESOLUTION);
3207
3208            // Try to find a matching persistent preferred activity.
3209            ResolveInfo pri = findPersistentPreferredActivityLP(intent, resolvedType, flags, query,
3210                    debug, userId);
3211
3212            // If a persistent preferred activity matched, use it.
3213            if (pri != null) {
3214                return pri;
3215            }
3216
3217            PreferredIntentResolver pir = mSettings.mPreferredActivities.get(userId);
3218            // Get the list of preferred activities that handle the intent
3219            if (DEBUG_PREFERRED || debug) Slog.v(TAG, "Looking for preferred activities...");
3220            List<PreferredActivity> prefs = pir != null
3221                    ? pir.queryIntent(intent, resolvedType,
3222                            (flags & PackageManager.MATCH_DEFAULT_ONLY) != 0, userId)
3223                    : null;
3224            if (prefs != null && prefs.size() > 0) {
3225                boolean changed = false;
3226                try {
3227                    // First figure out how good the original match set is.
3228                    // We will only allow preferred activities that came
3229                    // from the same match quality.
3230                    int match = 0;
3231
3232                    if (DEBUG_PREFERRED || debug) Slog.v(TAG, "Figuring out best match...");
3233
3234                    final int N = query.size();
3235                    for (int j=0; j<N; j++) {
3236                        final ResolveInfo ri = query.get(j);
3237                        if (DEBUG_PREFERRED || debug) Slog.v(TAG, "Match for " + ri.activityInfo
3238                                + ": 0x" + Integer.toHexString(match));
3239                        if (ri.match > match) {
3240                            match = ri.match;
3241                        }
3242                    }
3243
3244                    if (DEBUG_PREFERRED || debug) Slog.v(TAG, "Best match: 0x"
3245                            + Integer.toHexString(match));
3246
3247                    match &= IntentFilter.MATCH_CATEGORY_MASK;
3248                    final int M = prefs.size();
3249                    for (int i=0; i<M; i++) {
3250                        final PreferredActivity pa = prefs.get(i);
3251                        if (DEBUG_PREFERRED || debug) {
3252                            Slog.v(TAG, "Checking PreferredActivity ds="
3253                                    + (pa.countDataSchemes() > 0 ? pa.getDataScheme(0) : "<none>")
3254                                    + "\n  component=" + pa.mPref.mComponent);
3255                            pa.dump(new LogPrinter(Log.VERBOSE, TAG, Log.LOG_ID_SYSTEM), "  ");
3256                        }
3257                        if (pa.mPref.mMatch != match) {
3258                            if (DEBUG_PREFERRED || debug) Slog.v(TAG, "Skipping bad match "
3259                                    + Integer.toHexString(pa.mPref.mMatch));
3260                            continue;
3261                        }
3262                        // If it's not an "always" type preferred activity and that's what we're
3263                        // looking for, skip it.
3264                        if (always && !pa.mPref.mAlways) {
3265                            if (DEBUG_PREFERRED || debug) Slog.v(TAG, "Skipping mAlways=false entry");
3266                            continue;
3267                        }
3268                        final ActivityInfo ai = getActivityInfo(pa.mPref.mComponent,
3269                                flags | PackageManager.GET_DISABLED_COMPONENTS, userId);
3270                        if (DEBUG_PREFERRED || debug) {
3271                            Slog.v(TAG, "Found preferred activity:");
3272                            if (ai != null) {
3273                                ai.dump(new LogPrinter(Log.VERBOSE, TAG, Log.LOG_ID_SYSTEM), "  ");
3274                            } else {
3275                                Slog.v(TAG, "  null");
3276                            }
3277                        }
3278                        if (ai == null) {
3279                            // This previously registered preferred activity
3280                            // component is no longer known.  Most likely an update
3281                            // to the app was installed and in the new version this
3282                            // component no longer exists.  Clean it up by removing
3283                            // it from the preferred activities list, and skip it.
3284                            Slog.w(TAG, "Removing dangling preferred activity: "
3285                                    + pa.mPref.mComponent);
3286                            pir.removeFilter(pa);
3287                            changed = true;
3288                            continue;
3289                        }
3290                        for (int j=0; j<N; j++) {
3291                            final ResolveInfo ri = query.get(j);
3292                            if (!ri.activityInfo.applicationInfo.packageName
3293                                    .equals(ai.applicationInfo.packageName)) {
3294                                continue;
3295                            }
3296                            if (!ri.activityInfo.name.equals(ai.name)) {
3297                                continue;
3298                            }
3299
3300                            if (removeMatches) {
3301                                pir.removeFilter(pa);
3302                                changed = true;
3303                                if (DEBUG_PREFERRED) {
3304                                    Slog.v(TAG, "Removing match " + pa.mPref.mComponent);
3305                                }
3306                                break;
3307                            }
3308
3309                            // Okay we found a previously set preferred or last chosen app.
3310                            // If the result set is different from when this
3311                            // was created, we need to clear it and re-ask the
3312                            // user their preference, if we're looking for an "always" type entry.
3313                            if (always && !pa.mPref.sameSet(query)) {
3314                                Slog.i(TAG, "Result set changed, dropping preferred activity for "
3315                                        + intent + " type " + resolvedType);
3316                                if (DEBUG_PREFERRED) {
3317                                    Slog.v(TAG, "Removing preferred activity since set changed "
3318                                            + pa.mPref.mComponent);
3319                                }
3320                                pir.removeFilter(pa);
3321                                // Re-add the filter as a "last chosen" entry (!always)
3322                                PreferredActivity lastChosen = new PreferredActivity(
3323                                        pa, pa.mPref.mMatch, null, pa.mPref.mComponent, false);
3324                                pir.addFilter(lastChosen);
3325                                changed = true;
3326                                return null;
3327                            }
3328
3329                            // Yay! Either the set matched or we're looking for the last chosen
3330                            if (DEBUG_PREFERRED || debug) Slog.v(TAG, "Returning preferred activity: "
3331                                    + ri.activityInfo.packageName + "/" + ri.activityInfo.name);
3332                            return ri;
3333                        }
3334                    }
3335                } finally {
3336                    if (changed) {
3337                        if (DEBUG_PREFERRED) {
3338                            Slog.v(TAG, "Preferred activity bookkeeping changed; writing restrictions");
3339                        }
3340                        scheduleWritePackageRestrictionsLocked(userId);
3341                    }
3342                }
3343            }
3344        }
3345        if (DEBUG_PREFERRED || debug) Slog.v(TAG, "No preferred activity to return");
3346        return null;
3347    }
3348
3349    /*
3350     * Returns if intent can be forwarded from the sourceUserId to the targetUserId
3351     */
3352    @Override
3353    public boolean canForwardTo(Intent intent, String resolvedType, int sourceUserId,
3354            int targetUserId) {
3355        mContext.enforceCallingOrSelfPermission(
3356                android.Manifest.permission.INTERACT_ACROSS_USERS_FULL, null);
3357        List<CrossProfileIntentFilter> matches =
3358                getMatchingCrossProfileIntentFilters(intent, resolvedType, sourceUserId);
3359        if (matches != null) {
3360            int size = matches.size();
3361            for (int i = 0; i < size; i++) {
3362                if (matches.get(i).getTargetUserId() == targetUserId) return true;
3363            }
3364        }
3365        return false;
3366    }
3367
3368    private List<CrossProfileIntentFilter> getMatchingCrossProfileIntentFilters(Intent intent,
3369            String resolvedType, int userId) {
3370        CrossProfileIntentResolver resolver = mSettings.mCrossProfileIntentResolvers.get(userId);
3371        if (resolver != null) {
3372            return resolver.queryIntent(intent, resolvedType, false, userId);
3373        }
3374        return null;
3375    }
3376
3377    @Override
3378    public List<ResolveInfo> queryIntentActivities(Intent intent,
3379            String resolvedType, int flags, int userId) {
3380        if (!sUserManager.exists(userId)) return Collections.emptyList();
3381        enforceCrossUserPermission(Binder.getCallingUid(), userId, false, false, "query intent activities");
3382        ComponentName comp = intent.getComponent();
3383        if (comp == null) {
3384            if (intent.getSelector() != null) {
3385                intent = intent.getSelector();
3386                comp = intent.getComponent();
3387            }
3388        }
3389
3390        if (comp != null) {
3391            final List<ResolveInfo> list = new ArrayList<ResolveInfo>(1);
3392            final ActivityInfo ai = getActivityInfo(comp, flags, userId);
3393            if (ai != null) {
3394                final ResolveInfo ri = new ResolveInfo();
3395                ri.activityInfo = ai;
3396                list.add(ri);
3397            }
3398            return list;
3399        }
3400
3401        // reader
3402        synchronized (mPackages) {
3403            final String pkgName = intent.getPackage();
3404            if (pkgName == null) {
3405                List<CrossProfileIntentFilter> matchingFilters =
3406                        getMatchingCrossProfileIntentFilters(intent, resolvedType, userId);
3407                // Check for results that need to skip the current profile.
3408                ResolveInfo resolveInfo  = querySkipCurrentProfileIntents(matchingFilters, intent,
3409                        resolvedType, flags, userId);
3410                if (resolveInfo != null) {
3411                    List<ResolveInfo> result = new ArrayList<ResolveInfo>(1);
3412                    result.add(resolveInfo);
3413                    return result;
3414                }
3415                // Check for cross profile results.
3416                resolveInfo = queryCrossProfileIntents(
3417                        matchingFilters, intent, resolvedType, flags, userId);
3418
3419                // Check for results in the current profile.
3420                List<ResolveInfo> result = mActivities.queryIntent(
3421                        intent, resolvedType, flags, userId);
3422                if (resolveInfo != null) {
3423                    result.add(resolveInfo);
3424                    Collections.sort(result, mResolvePrioritySorter);
3425                }
3426                return result;
3427            }
3428            final PackageParser.Package pkg = mPackages.get(pkgName);
3429            if (pkg != null) {
3430                return mActivities.queryIntentForPackage(intent, resolvedType, flags,
3431                        pkg.activities, userId);
3432            }
3433            return new ArrayList<ResolveInfo>();
3434        }
3435    }
3436
3437    private ResolveInfo querySkipCurrentProfileIntents(
3438            List<CrossProfileIntentFilter> matchingFilters, Intent intent, String resolvedType,
3439            int flags, int sourceUserId) {
3440        if (matchingFilters != null) {
3441            int size = matchingFilters.size();
3442            for (int i = 0; i < size; i ++) {
3443                CrossProfileIntentFilter filter = matchingFilters.get(i);
3444                if ((filter.getFlags() & PackageManager.SKIP_CURRENT_PROFILE) != 0) {
3445                    // Checking if there are activities in the target user that can handle the
3446                    // intent.
3447                    ResolveInfo resolveInfo = checkTargetCanHandle(filter, intent, resolvedType,
3448                            flags, sourceUserId);
3449                    if (resolveInfo != null) {
3450                        return resolveInfo;
3451                    }
3452                }
3453            }
3454        }
3455        return null;
3456    }
3457
3458    // Return matching ResolveInfo if any for skip current profile intent filters.
3459    private ResolveInfo queryCrossProfileIntents(
3460            List<CrossProfileIntentFilter> matchingFilters, Intent intent, String resolvedType,
3461            int flags, int sourceUserId) {
3462        if (matchingFilters != null) {
3463            // Two {@link CrossProfileIntentFilter}s can have the same targetUserId and
3464            // match the same intent. For performance reasons, it is better not to
3465            // run queryIntent twice for the same userId
3466            SparseBooleanArray alreadyTriedUserIds = new SparseBooleanArray();
3467            int size = matchingFilters.size();
3468            for (int i = 0; i < size; i++) {
3469                CrossProfileIntentFilter filter = matchingFilters.get(i);
3470                int targetUserId = filter.getTargetUserId();
3471                if ((filter.getFlags() & PackageManager.SKIP_CURRENT_PROFILE) == 0
3472                        && !alreadyTriedUserIds.get(targetUserId)) {
3473                    // Checking if there are activities in the target user that can handle the
3474                    // intent.
3475                    ResolveInfo resolveInfo = checkTargetCanHandle(filter, intent, resolvedType,
3476                            flags, sourceUserId);
3477                    if (resolveInfo != null) return resolveInfo;
3478                    alreadyTriedUserIds.put(targetUserId, true);
3479                }
3480            }
3481        }
3482        return null;
3483    }
3484
3485    private ResolveInfo checkTargetCanHandle(CrossProfileIntentFilter filter, Intent intent,
3486            String resolvedType, int flags, int sourceUserId) {
3487        List<ResolveInfo> resultTargetUser = mActivities.queryIntent(intent,
3488                resolvedType, flags, filter.getTargetUserId());
3489        if (resultTargetUser != null && !resultTargetUser.isEmpty()) {
3490            return createForwardingResolveInfo(filter, sourceUserId, filter.getTargetUserId());
3491        }
3492        return null;
3493    }
3494
3495    private ResolveInfo createForwardingResolveInfo(IntentFilter filter,
3496            int sourceUserId, int targetUserId) {
3497        ResolveInfo forwardingResolveInfo = new ResolveInfo();
3498        String className;
3499        if (targetUserId == UserHandle.USER_OWNER) {
3500            className = FORWARD_INTENT_TO_USER_OWNER;
3501        } else {
3502            className = FORWARD_INTENT_TO_MANAGED_PROFILE;
3503        }
3504        ComponentName forwardingActivityComponentName = new ComponentName(
3505                mAndroidApplication.packageName, className);
3506        ActivityInfo forwardingActivityInfo = getActivityInfo(forwardingActivityComponentName, 0,
3507                sourceUserId);
3508        if (targetUserId == UserHandle.USER_OWNER) {
3509            forwardingActivityInfo.showUserIcon = UserHandle.USER_OWNER;
3510            forwardingResolveInfo.noResourceId = true;
3511        }
3512        forwardingResolveInfo.activityInfo = forwardingActivityInfo;
3513        forwardingResolveInfo.priority = 0;
3514        forwardingResolveInfo.preferredOrder = 0;
3515        forwardingResolveInfo.match = 0;
3516        forwardingResolveInfo.isDefault = true;
3517        forwardingResolveInfo.filter = filter;
3518        forwardingResolveInfo.targetUserId = targetUserId;
3519        return forwardingResolveInfo;
3520    }
3521
3522    @Override
3523    public List<ResolveInfo> queryIntentActivityOptions(ComponentName caller,
3524            Intent[] specifics, String[] specificTypes, Intent intent,
3525            String resolvedType, int flags, int userId) {
3526        if (!sUserManager.exists(userId)) return Collections.emptyList();
3527        enforceCrossUserPermission(Binder.getCallingUid(), userId, false,
3528                false, "query intent activity options");
3529        final String resultsAction = intent.getAction();
3530
3531        List<ResolveInfo> results = queryIntentActivities(intent, resolvedType, flags
3532                | PackageManager.GET_RESOLVED_FILTER, userId);
3533
3534        if (DEBUG_INTENT_MATCHING) {
3535            Log.v(TAG, "Query " + intent + ": " + results);
3536        }
3537
3538        int specificsPos = 0;
3539        int N;
3540
3541        // todo: note that the algorithm used here is O(N^2).  This
3542        // isn't a problem in our current environment, but if we start running
3543        // into situations where we have more than 5 or 10 matches then this
3544        // should probably be changed to something smarter...
3545
3546        // First we go through and resolve each of the specific items
3547        // that were supplied, taking care of removing any corresponding
3548        // duplicate items in the generic resolve list.
3549        if (specifics != null) {
3550            for (int i=0; i<specifics.length; i++) {
3551                final Intent sintent = specifics[i];
3552                if (sintent == null) {
3553                    continue;
3554                }
3555
3556                if (DEBUG_INTENT_MATCHING) {
3557                    Log.v(TAG, "Specific #" + i + ": " + sintent);
3558                }
3559
3560                String action = sintent.getAction();
3561                if (resultsAction != null && resultsAction.equals(action)) {
3562                    // If this action was explicitly requested, then don't
3563                    // remove things that have it.
3564                    action = null;
3565                }
3566
3567                ResolveInfo ri = null;
3568                ActivityInfo ai = null;
3569
3570                ComponentName comp = sintent.getComponent();
3571                if (comp == null) {
3572                    ri = resolveIntent(
3573                        sintent,
3574                        specificTypes != null ? specificTypes[i] : null,
3575                            flags, userId);
3576                    if (ri == null) {
3577                        continue;
3578                    }
3579                    if (ri == mResolveInfo) {
3580                        // ACK!  Must do something better with this.
3581                    }
3582                    ai = ri.activityInfo;
3583                    comp = new ComponentName(ai.applicationInfo.packageName,
3584                            ai.name);
3585                } else {
3586                    ai = getActivityInfo(comp, flags, userId);
3587                    if (ai == null) {
3588                        continue;
3589                    }
3590                }
3591
3592                // Look for any generic query activities that are duplicates
3593                // of this specific one, and remove them from the results.
3594                if (DEBUG_INTENT_MATCHING) Log.v(TAG, "Specific #" + i + ": " + ai);
3595                N = results.size();
3596                int j;
3597                for (j=specificsPos; j<N; j++) {
3598                    ResolveInfo sri = results.get(j);
3599                    if ((sri.activityInfo.name.equals(comp.getClassName())
3600                            && sri.activityInfo.applicationInfo.packageName.equals(
3601                                    comp.getPackageName()))
3602                        || (action != null && sri.filter.matchAction(action))) {
3603                        results.remove(j);
3604                        if (DEBUG_INTENT_MATCHING) Log.v(
3605                            TAG, "Removing duplicate item from " + j
3606                            + " due to specific " + specificsPos);
3607                        if (ri == null) {
3608                            ri = sri;
3609                        }
3610                        j--;
3611                        N--;
3612                    }
3613                }
3614
3615                // Add this specific item to its proper place.
3616                if (ri == null) {
3617                    ri = new ResolveInfo();
3618                    ri.activityInfo = ai;
3619                }
3620                results.add(specificsPos, ri);
3621                ri.specificIndex = i;
3622                specificsPos++;
3623            }
3624        }
3625
3626        // Now we go through the remaining generic results and remove any
3627        // duplicate actions that are found here.
3628        N = results.size();
3629        for (int i=specificsPos; i<N-1; i++) {
3630            final ResolveInfo rii = results.get(i);
3631            if (rii.filter == null) {
3632                continue;
3633            }
3634
3635            // Iterate over all of the actions of this result's intent
3636            // filter...  typically this should be just one.
3637            final Iterator<String> it = rii.filter.actionsIterator();
3638            if (it == null) {
3639                continue;
3640            }
3641            while (it.hasNext()) {
3642                final String action = it.next();
3643                if (resultsAction != null && resultsAction.equals(action)) {
3644                    // If this action was explicitly requested, then don't
3645                    // remove things that have it.
3646                    continue;
3647                }
3648                for (int j=i+1; j<N; j++) {
3649                    final ResolveInfo rij = results.get(j);
3650                    if (rij.filter != null && rij.filter.hasAction(action)) {
3651                        results.remove(j);
3652                        if (DEBUG_INTENT_MATCHING) Log.v(
3653                            TAG, "Removing duplicate item from " + j
3654                            + " due to action " + action + " at " + i);
3655                        j--;
3656                        N--;
3657                    }
3658                }
3659            }
3660
3661            // If the caller didn't request filter information, drop it now
3662            // so we don't have to marshall/unmarshall it.
3663            if ((flags&PackageManager.GET_RESOLVED_FILTER) == 0) {
3664                rii.filter = null;
3665            }
3666        }
3667
3668        // Filter out the caller activity if so requested.
3669        if (caller != null) {
3670            N = results.size();
3671            for (int i=0; i<N; i++) {
3672                ActivityInfo ainfo = results.get(i).activityInfo;
3673                if (caller.getPackageName().equals(ainfo.applicationInfo.packageName)
3674                        && caller.getClassName().equals(ainfo.name)) {
3675                    results.remove(i);
3676                    break;
3677                }
3678            }
3679        }
3680
3681        // If the caller didn't request filter information,
3682        // drop them now so we don't have to
3683        // marshall/unmarshall it.
3684        if ((flags&PackageManager.GET_RESOLVED_FILTER) == 0) {
3685            N = results.size();
3686            for (int i=0; i<N; i++) {
3687                results.get(i).filter = null;
3688            }
3689        }
3690
3691        if (DEBUG_INTENT_MATCHING) Log.v(TAG, "Result: " + results);
3692        return results;
3693    }
3694
3695    @Override
3696    public List<ResolveInfo> queryIntentReceivers(Intent intent, String resolvedType, int flags,
3697            int userId) {
3698        if (!sUserManager.exists(userId)) return Collections.emptyList();
3699        ComponentName comp = intent.getComponent();
3700        if (comp == null) {
3701            if (intent.getSelector() != null) {
3702                intent = intent.getSelector();
3703                comp = intent.getComponent();
3704            }
3705        }
3706        if (comp != null) {
3707            List<ResolveInfo> list = new ArrayList<ResolveInfo>(1);
3708            ActivityInfo ai = getReceiverInfo(comp, flags, userId);
3709            if (ai != null) {
3710                ResolveInfo ri = new ResolveInfo();
3711                ri.activityInfo = ai;
3712                list.add(ri);
3713            }
3714            return list;
3715        }
3716
3717        // reader
3718        synchronized (mPackages) {
3719            String pkgName = intent.getPackage();
3720            if (pkgName == null) {
3721                return mReceivers.queryIntent(intent, resolvedType, flags, userId);
3722            }
3723            final PackageParser.Package pkg = mPackages.get(pkgName);
3724            if (pkg != null) {
3725                return mReceivers.queryIntentForPackage(intent, resolvedType, flags, pkg.receivers,
3726                        userId);
3727            }
3728            return null;
3729        }
3730    }
3731
3732    @Override
3733    public ResolveInfo resolveService(Intent intent, String resolvedType, int flags, int userId) {
3734        List<ResolveInfo> query = queryIntentServices(intent, resolvedType, flags, userId);
3735        if (!sUserManager.exists(userId)) return null;
3736        if (query != null) {
3737            if (query.size() >= 1) {
3738                // If there is more than one service with the same priority,
3739                // just arbitrarily pick the first one.
3740                return query.get(0);
3741            }
3742        }
3743        return null;
3744    }
3745
3746    @Override
3747    public List<ResolveInfo> queryIntentServices(Intent intent, String resolvedType, int flags,
3748            int userId) {
3749        if (!sUserManager.exists(userId)) return Collections.emptyList();
3750        ComponentName comp = intent.getComponent();
3751        if (comp == null) {
3752            if (intent.getSelector() != null) {
3753                intent = intent.getSelector();
3754                comp = intent.getComponent();
3755            }
3756        }
3757        if (comp != null) {
3758            final List<ResolveInfo> list = new ArrayList<ResolveInfo>(1);
3759            final ServiceInfo si = getServiceInfo(comp, flags, userId);
3760            if (si != null) {
3761                final ResolveInfo ri = new ResolveInfo();
3762                ri.serviceInfo = si;
3763                list.add(ri);
3764            }
3765            return list;
3766        }
3767
3768        // reader
3769        synchronized (mPackages) {
3770            String pkgName = intent.getPackage();
3771            if (pkgName == null) {
3772                return mServices.queryIntent(intent, resolvedType, flags, userId);
3773            }
3774            final PackageParser.Package pkg = mPackages.get(pkgName);
3775            if (pkg != null) {
3776                return mServices.queryIntentForPackage(intent, resolvedType, flags, pkg.services,
3777                        userId);
3778            }
3779            return null;
3780        }
3781    }
3782
3783    @Override
3784    public List<ResolveInfo> queryIntentContentProviders(
3785            Intent intent, String resolvedType, int flags, int userId) {
3786        if (!sUserManager.exists(userId)) return Collections.emptyList();
3787        ComponentName comp = intent.getComponent();
3788        if (comp == null) {
3789            if (intent.getSelector() != null) {
3790                intent = intent.getSelector();
3791                comp = intent.getComponent();
3792            }
3793        }
3794        if (comp != null) {
3795            final List<ResolveInfo> list = new ArrayList<ResolveInfo>(1);
3796            final ProviderInfo pi = getProviderInfo(comp, flags, userId);
3797            if (pi != null) {
3798                final ResolveInfo ri = new ResolveInfo();
3799                ri.providerInfo = pi;
3800                list.add(ri);
3801            }
3802            return list;
3803        }
3804
3805        // reader
3806        synchronized (mPackages) {
3807            String pkgName = intent.getPackage();
3808            if (pkgName == null) {
3809                return mProviders.queryIntent(intent, resolvedType, flags, userId);
3810            }
3811            final PackageParser.Package pkg = mPackages.get(pkgName);
3812            if (pkg != null) {
3813                return mProviders.queryIntentForPackage(
3814                        intent, resolvedType, flags, pkg.providers, userId);
3815            }
3816            return null;
3817        }
3818    }
3819
3820    @Override
3821    public ParceledListSlice<PackageInfo> getInstalledPackages(int flags, int userId) {
3822        final boolean listUninstalled = (flags & PackageManager.GET_UNINSTALLED_PACKAGES) != 0;
3823
3824        enforceCrossUserPermission(Binder.getCallingUid(), userId, true, false, "get installed packages");
3825
3826        // writer
3827        synchronized (mPackages) {
3828            ArrayList<PackageInfo> list;
3829            if (listUninstalled) {
3830                list = new ArrayList<PackageInfo>(mSettings.mPackages.size());
3831                for (PackageSetting ps : mSettings.mPackages.values()) {
3832                    PackageInfo pi;
3833                    if (ps.pkg != null) {
3834                        pi = generatePackageInfo(ps.pkg, flags, userId);
3835                    } else {
3836                        pi = generatePackageInfoFromSettingsLPw(ps.name, flags, userId);
3837                    }
3838                    if (pi != null) {
3839                        list.add(pi);
3840                    }
3841                }
3842            } else {
3843                list = new ArrayList<PackageInfo>(mPackages.size());
3844                for (PackageParser.Package p : mPackages.values()) {
3845                    PackageInfo pi = generatePackageInfo(p, flags, userId);
3846                    if (pi != null) {
3847                        list.add(pi);
3848                    }
3849                }
3850            }
3851
3852            return new ParceledListSlice<PackageInfo>(list);
3853        }
3854    }
3855
3856    private void addPackageHoldingPermissions(ArrayList<PackageInfo> list, PackageSetting ps,
3857            String[] permissions, boolean[] tmp, int flags, int userId) {
3858        int numMatch = 0;
3859        final GrantedPermissions gp = ps.sharedUser != null ? ps.sharedUser : ps;
3860        for (int i=0; i<permissions.length; i++) {
3861            if (gp.grantedPermissions.contains(permissions[i])) {
3862                tmp[i] = true;
3863                numMatch++;
3864            } else {
3865                tmp[i] = false;
3866            }
3867        }
3868        if (numMatch == 0) {
3869            return;
3870        }
3871        PackageInfo pi;
3872        if (ps.pkg != null) {
3873            pi = generatePackageInfo(ps.pkg, flags, userId);
3874        } else {
3875            pi = generatePackageInfoFromSettingsLPw(ps.name, flags, userId);
3876        }
3877        // The above might return null in cases of uninstalled apps or install-state
3878        // skew across users/profiles.
3879        if (pi != null) {
3880            if ((flags&PackageManager.GET_PERMISSIONS) == 0) {
3881                if (numMatch == permissions.length) {
3882                    pi.requestedPermissions = permissions;
3883                } else {
3884                    pi.requestedPermissions = new String[numMatch];
3885                    numMatch = 0;
3886                    for (int i=0; i<permissions.length; i++) {
3887                        if (tmp[i]) {
3888                            pi.requestedPermissions[numMatch] = permissions[i];
3889                            numMatch++;
3890                        }
3891                    }
3892                }
3893            }
3894            list.add(pi);
3895        }
3896    }
3897
3898    @Override
3899    public ParceledListSlice<PackageInfo> getPackagesHoldingPermissions(
3900            String[] permissions, int flags, int userId) {
3901        if (!sUserManager.exists(userId)) return null;
3902        final boolean listUninstalled = (flags & PackageManager.GET_UNINSTALLED_PACKAGES) != 0;
3903
3904        // writer
3905        synchronized (mPackages) {
3906            ArrayList<PackageInfo> list = new ArrayList<PackageInfo>();
3907            boolean[] tmpBools = new boolean[permissions.length];
3908            if (listUninstalled) {
3909                for (PackageSetting ps : mSettings.mPackages.values()) {
3910                    addPackageHoldingPermissions(list, ps, permissions, tmpBools, flags, userId);
3911                }
3912            } else {
3913                for (PackageParser.Package pkg : mPackages.values()) {
3914                    PackageSetting ps = (PackageSetting)pkg.mExtras;
3915                    if (ps != null) {
3916                        addPackageHoldingPermissions(list, ps, permissions, tmpBools, flags,
3917                                userId);
3918                    }
3919                }
3920            }
3921
3922            return new ParceledListSlice<PackageInfo>(list);
3923        }
3924    }
3925
3926    @Override
3927    public ParceledListSlice<ApplicationInfo> getInstalledApplications(int flags, int userId) {
3928        if (!sUserManager.exists(userId)) return null;
3929        final boolean listUninstalled = (flags & PackageManager.GET_UNINSTALLED_PACKAGES) != 0;
3930
3931        // writer
3932        synchronized (mPackages) {
3933            ArrayList<ApplicationInfo> list;
3934            if (listUninstalled) {
3935                list = new ArrayList<ApplicationInfo>(mSettings.mPackages.size());
3936                for (PackageSetting ps : mSettings.mPackages.values()) {
3937                    ApplicationInfo ai;
3938                    if (ps.pkg != null) {
3939                        ai = PackageParser.generateApplicationInfo(ps.pkg, flags,
3940                                ps.readUserState(userId), userId);
3941                    } else {
3942                        ai = generateApplicationInfoFromSettingsLPw(ps.name, flags, userId);
3943                    }
3944                    if (ai != null) {
3945                        list.add(ai);
3946                    }
3947                }
3948            } else {
3949                list = new ArrayList<ApplicationInfo>(mPackages.size());
3950                for (PackageParser.Package p : mPackages.values()) {
3951                    if (p.mExtras != null) {
3952                        ApplicationInfo ai = PackageParser.generateApplicationInfo(p, flags,
3953                                ((PackageSetting)p.mExtras).readUserState(userId), userId);
3954                        if (ai != null) {
3955                            list.add(ai);
3956                        }
3957                    }
3958                }
3959            }
3960
3961            return new ParceledListSlice<ApplicationInfo>(list);
3962        }
3963    }
3964
3965    public List<ApplicationInfo> getPersistentApplications(int flags) {
3966        final ArrayList<ApplicationInfo> finalList = new ArrayList<ApplicationInfo>();
3967
3968        // reader
3969        synchronized (mPackages) {
3970            final Iterator<PackageParser.Package> i = mPackages.values().iterator();
3971            final int userId = UserHandle.getCallingUserId();
3972            while (i.hasNext()) {
3973                final PackageParser.Package p = i.next();
3974                if (p.applicationInfo != null
3975                        && (p.applicationInfo.flags&ApplicationInfo.FLAG_PERSISTENT) != 0
3976                        && (!mSafeMode || isSystemApp(p))) {
3977                    PackageSetting ps = mSettings.mPackages.get(p.packageName);
3978                    if (ps != null) {
3979                        ApplicationInfo ai = PackageParser.generateApplicationInfo(p, flags,
3980                                ps.readUserState(userId), userId);
3981                        if (ai != null) {
3982                            finalList.add(ai);
3983                        }
3984                    }
3985                }
3986            }
3987        }
3988
3989        return finalList;
3990    }
3991
3992    @Override
3993    public ProviderInfo resolveContentProvider(String name, int flags, int userId) {
3994        if (!sUserManager.exists(userId)) return null;
3995        // reader
3996        synchronized (mPackages) {
3997            final PackageParser.Provider provider = mProvidersByAuthority.get(name);
3998            PackageSetting ps = provider != null
3999                    ? mSettings.mPackages.get(provider.owner.packageName)
4000                    : null;
4001            return ps != null
4002                    && mSettings.isEnabledLPr(provider.info, flags, userId)
4003                    && (!mSafeMode || (provider.info.applicationInfo.flags
4004                            &ApplicationInfo.FLAG_SYSTEM) != 0)
4005                    ? PackageParser.generateProviderInfo(provider, flags,
4006                            ps.readUserState(userId), userId)
4007                    : null;
4008        }
4009    }
4010
4011    /**
4012     * @deprecated
4013     */
4014    @Deprecated
4015    public void querySyncProviders(List<String> outNames, List<ProviderInfo> outInfo) {
4016        // reader
4017        synchronized (mPackages) {
4018            final Iterator<Map.Entry<String, PackageParser.Provider>> i = mProvidersByAuthority
4019                    .entrySet().iterator();
4020            final int userId = UserHandle.getCallingUserId();
4021            while (i.hasNext()) {
4022                Map.Entry<String, PackageParser.Provider> entry = i.next();
4023                PackageParser.Provider p = entry.getValue();
4024                PackageSetting ps = mSettings.mPackages.get(p.owner.packageName);
4025
4026                if (ps != null && p.syncable
4027                        && (!mSafeMode || (p.info.applicationInfo.flags
4028                                &ApplicationInfo.FLAG_SYSTEM) != 0)) {
4029                    ProviderInfo info = PackageParser.generateProviderInfo(p, 0,
4030                            ps.readUserState(userId), userId);
4031                    if (info != null) {
4032                        outNames.add(entry.getKey());
4033                        outInfo.add(info);
4034                    }
4035                }
4036            }
4037        }
4038    }
4039
4040    @Override
4041    public List<ProviderInfo> queryContentProviders(String processName,
4042            int uid, int flags) {
4043        ArrayList<ProviderInfo> finalList = null;
4044        // reader
4045        synchronized (mPackages) {
4046            final Iterator<PackageParser.Provider> i = mProviders.mProviders.values().iterator();
4047            final int userId = processName != null ?
4048                    UserHandle.getUserId(uid) : UserHandle.getCallingUserId();
4049            while (i.hasNext()) {
4050                final PackageParser.Provider p = i.next();
4051                PackageSetting ps = mSettings.mPackages.get(p.owner.packageName);
4052                if (ps != null && p.info.authority != null
4053                        && (processName == null
4054                                || (p.info.processName.equals(processName)
4055                                        && UserHandle.isSameApp(p.info.applicationInfo.uid, uid)))
4056                        && mSettings.isEnabledLPr(p.info, flags, userId)
4057                        && (!mSafeMode
4058                                || (p.info.applicationInfo.flags & ApplicationInfo.FLAG_SYSTEM) != 0)) {
4059                    if (finalList == null) {
4060                        finalList = new ArrayList<ProviderInfo>(3);
4061                    }
4062                    ProviderInfo info = PackageParser.generateProviderInfo(p, flags,
4063                            ps.readUserState(userId), userId);
4064                    if (info != null) {
4065                        finalList.add(info);
4066                    }
4067                }
4068            }
4069        }
4070
4071        if (finalList != null) {
4072            Collections.sort(finalList, mProviderInitOrderSorter);
4073        }
4074
4075        return finalList;
4076    }
4077
4078    @Override
4079    public InstrumentationInfo getInstrumentationInfo(ComponentName name,
4080            int flags) {
4081        // reader
4082        synchronized (mPackages) {
4083            final PackageParser.Instrumentation i = mInstrumentation.get(name);
4084            return PackageParser.generateInstrumentationInfo(i, flags);
4085        }
4086    }
4087
4088    @Override
4089    public List<InstrumentationInfo> queryInstrumentation(String targetPackage,
4090            int flags) {
4091        ArrayList<InstrumentationInfo> finalList =
4092            new ArrayList<InstrumentationInfo>();
4093
4094        // reader
4095        synchronized (mPackages) {
4096            final Iterator<PackageParser.Instrumentation> i = mInstrumentation.values().iterator();
4097            while (i.hasNext()) {
4098                final PackageParser.Instrumentation p = i.next();
4099                if (targetPackage == null
4100                        || targetPackage.equals(p.info.targetPackage)) {
4101                    InstrumentationInfo ii = PackageParser.generateInstrumentationInfo(p,
4102                            flags);
4103                    if (ii != null) {
4104                        finalList.add(ii);
4105                    }
4106                }
4107            }
4108        }
4109
4110        return finalList;
4111    }
4112
4113    private void createIdmapsForPackageLI(PackageParser.Package pkg) {
4114        ArrayMap<String, PackageParser.Package> overlays = mOverlays.get(pkg.packageName);
4115        if (overlays == null) {
4116            Slog.w(TAG, "Unable to create idmap for " + pkg.packageName + ": no overlay packages");
4117            return;
4118        }
4119        for (PackageParser.Package opkg : overlays.values()) {
4120            // Not much to do if idmap fails: we already logged the error
4121            // and we certainly don't want to abort installation of pkg simply
4122            // because an overlay didn't fit properly. For these reasons,
4123            // ignore the return value of createIdmapForPackagePairLI.
4124            createIdmapForPackagePairLI(pkg, opkg);
4125        }
4126    }
4127
4128    private boolean createIdmapForPackagePairLI(PackageParser.Package pkg,
4129            PackageParser.Package opkg) {
4130        if (!opkg.mTrustedOverlay) {
4131            Slog.w(TAG, "Skipping target and overlay pair " + pkg.baseCodePath + " and " +
4132                    opkg.baseCodePath + ": overlay not trusted");
4133            return false;
4134        }
4135        ArrayMap<String, PackageParser.Package> overlaySet = mOverlays.get(pkg.packageName);
4136        if (overlaySet == null) {
4137            Slog.e(TAG, "was about to create idmap for " + pkg.baseCodePath + " and " +
4138                    opkg.baseCodePath + " but target package has no known overlays");
4139            return false;
4140        }
4141        final int sharedGid = UserHandle.getSharedAppGid(pkg.applicationInfo.uid);
4142        // TODO: generate idmap for split APKs
4143        if (mInstaller.idmap(pkg.baseCodePath, opkg.baseCodePath, sharedGid) != 0) {
4144            Slog.e(TAG, "Failed to generate idmap for " + pkg.baseCodePath + " and "
4145                    + opkg.baseCodePath);
4146            return false;
4147        }
4148        PackageParser.Package[] overlayArray =
4149            overlaySet.values().toArray(new PackageParser.Package[0]);
4150        Comparator<PackageParser.Package> cmp = new Comparator<PackageParser.Package>() {
4151            public int compare(PackageParser.Package p1, PackageParser.Package p2) {
4152                return p1.mOverlayPriority - p2.mOverlayPriority;
4153            }
4154        };
4155        Arrays.sort(overlayArray, cmp);
4156
4157        pkg.applicationInfo.resourceDirs = new String[overlayArray.length];
4158        int i = 0;
4159        for (PackageParser.Package p : overlayArray) {
4160            pkg.applicationInfo.resourceDirs[i++] = p.baseCodePath;
4161        }
4162        return true;
4163    }
4164
4165    private void scanDirLI(File dir, int parseFlags, int scanFlags, long currentTime) {
4166        final File[] files = dir.listFiles();
4167        if (ArrayUtils.isEmpty(files)) {
4168            Log.d(TAG, "No files in app dir " + dir);
4169            return;
4170        }
4171
4172        if (DEBUG_PACKAGE_SCANNING) {
4173            Log.d(TAG, "Scanning app dir " + dir + " scanFlags=" + scanFlags
4174                    + " flags=0x" + Integer.toHexString(parseFlags));
4175        }
4176
4177        for (File file : files) {
4178            final boolean isPackage = (isApkFile(file) || file.isDirectory())
4179                    && !PackageInstallerService.isStageName(file.getName());
4180            if (!isPackage) {
4181                // Ignore entries which are not packages
4182                continue;
4183            }
4184            try {
4185                scanPackageLI(file, parseFlags | PackageParser.PARSE_MUST_BE_APK,
4186                        scanFlags, currentTime, null);
4187            } catch (PackageManagerException e) {
4188                Slog.w(TAG, "Failed to parse " + file + ": " + e.getMessage());
4189
4190                // Delete invalid userdata apps
4191                if ((parseFlags & PackageParser.PARSE_IS_SYSTEM) == 0 &&
4192                        e.error == PackageManager.INSTALL_FAILED_INVALID_APK) {
4193                    logCriticalInfo(Log.WARN, "Deleting invalid package at " + file);
4194                    if (file.isDirectory()) {
4195                        mInstaller.rmPackageDir(file.getAbsolutePath());
4196                    } else {
4197                        file.delete();
4198                    }
4199                }
4200            }
4201        }
4202    }
4203
4204    private static File getSettingsProblemFile() {
4205        File dataDir = Environment.getDataDirectory();
4206        File systemDir = new File(dataDir, "system");
4207        File fname = new File(systemDir, "uiderrors.txt");
4208        return fname;
4209    }
4210
4211    static void reportSettingsProblem(int priority, String msg) {
4212        logCriticalInfo(priority, msg);
4213    }
4214
4215    static void logCriticalInfo(int priority, String msg) {
4216        Slog.println(priority, TAG, msg);
4217        EventLogTags.writePmCriticalInfo(msg);
4218        try {
4219            File fname = getSettingsProblemFile();
4220            FileOutputStream out = new FileOutputStream(fname, true);
4221            PrintWriter pw = new FastPrintWriter(out);
4222            SimpleDateFormat formatter = new SimpleDateFormat();
4223            String dateString = formatter.format(new Date(System.currentTimeMillis()));
4224            pw.println(dateString + ": " + msg);
4225            pw.close();
4226            FileUtils.setPermissions(
4227                    fname.toString(),
4228                    FileUtils.S_IRWXU|FileUtils.S_IRWXG|FileUtils.S_IROTH,
4229                    -1, -1);
4230        } catch (java.io.IOException e) {
4231        }
4232    }
4233
4234    private void collectCertificatesLI(PackageParser pp, PackageSetting ps,
4235            PackageParser.Package pkg, File srcFile, int parseFlags)
4236            throws PackageManagerException {
4237        if (ps != null
4238                && ps.codePath.equals(srcFile)
4239                && ps.timeStamp == srcFile.lastModified()
4240                && !isCompatSignatureUpdateNeeded(pkg)
4241                && !isRecoverSignatureUpdateNeeded(pkg)) {
4242            long mSigningKeySetId = ps.keySetData.getProperSigningKeySet();
4243            if (ps.signatures.mSignatures != null
4244                    && ps.signatures.mSignatures.length != 0
4245                    && mSigningKeySetId != PackageKeySetData.KEYSET_UNASSIGNED) {
4246                // Optimization: reuse the existing cached certificates
4247                // if the package appears to be unchanged.
4248                pkg.mSignatures = ps.signatures.mSignatures;
4249                KeySetManagerService ksms = mSettings.mKeySetManagerService;
4250                synchronized (mPackages) {
4251                    pkg.mSigningKeys = ksms.getPublicKeysFromKeySetLPr(mSigningKeySetId);
4252                }
4253                return;
4254            }
4255
4256            Slog.w(TAG, "PackageSetting for " + ps.name
4257                    + " is missing signatures.  Collecting certs again to recover them.");
4258        } else {
4259            Log.i(TAG, srcFile.toString() + " changed; collecting certs");
4260        }
4261
4262        try {
4263            pp.collectCertificates(pkg, parseFlags);
4264            pp.collectManifestDigest(pkg);
4265        } catch (PackageParserException e) {
4266            throw PackageManagerException.from(e);
4267        }
4268    }
4269
4270    /*
4271     *  Scan a package and return the newly parsed package.
4272     *  Returns null in case of errors and the error code is stored in mLastScanError
4273     */
4274    private PackageParser.Package scanPackageLI(File scanFile, int parseFlags, int scanFlags,
4275            long currentTime, UserHandle user) throws PackageManagerException {
4276        if (DEBUG_INSTALL) Slog.d(TAG, "Parsing: " + scanFile);
4277        parseFlags |= mDefParseFlags;
4278        PackageParser pp = new PackageParser();
4279        pp.setSeparateProcesses(mSeparateProcesses);
4280        pp.setOnlyCoreApps(mOnlyCore);
4281        pp.setDisplayMetrics(mMetrics);
4282
4283        if ((scanFlags & SCAN_TRUSTED_OVERLAY) != 0) {
4284            parseFlags |= PackageParser.PARSE_TRUSTED_OVERLAY;
4285        }
4286
4287        final PackageParser.Package pkg;
4288        try {
4289            pkg = pp.parsePackage(scanFile, parseFlags);
4290        } catch (PackageParserException e) {
4291            throw PackageManagerException.from(e);
4292        }
4293
4294        PackageSetting ps = null;
4295        PackageSetting updatedPkg;
4296        // reader
4297        synchronized (mPackages) {
4298            // Look to see if we already know about this package.
4299            String oldName = mSettings.mRenamedPackages.get(pkg.packageName);
4300            if (pkg.mOriginalPackages != null && pkg.mOriginalPackages.contains(oldName)) {
4301                // This package has been renamed to its original name.  Let's
4302                // use that.
4303                ps = mSettings.peekPackageLPr(oldName);
4304            }
4305            // If there was no original package, see one for the real package name.
4306            if (ps == null) {
4307                ps = mSettings.peekPackageLPr(pkg.packageName);
4308            }
4309            // Check to see if this package could be hiding/updating a system
4310            // package.  Must look for it either under the original or real
4311            // package name depending on our state.
4312            updatedPkg = mSettings.getDisabledSystemPkgLPr(ps != null ? ps.name : pkg.packageName);
4313            if (DEBUG_INSTALL && updatedPkg != null) Slog.d(TAG, "updatedPkg = " + updatedPkg);
4314        }
4315        boolean updatedPkgBetter = false;
4316        // First check if this is a system package that may involve an update
4317        if (updatedPkg != null && (parseFlags&PackageParser.PARSE_IS_SYSTEM) != 0) {
4318            // If new package is not located in "/system/priv-app" (e.g. due to an OTA),
4319            // it needs to drop FLAG_PRIVILEGED.
4320            if (locationIsPrivileged(scanFile)) {
4321                updatedPkg.pkgPrivateFlags |= ApplicationInfo.PRIVATE_FLAG_PRIVILEGED;
4322            } else {
4323                updatedPkg.pkgPrivateFlags &= ~ApplicationInfo.PRIVATE_FLAG_PRIVILEGED;
4324            }
4325
4326            if (ps != null && !ps.codePath.equals(scanFile)) {
4327                // The path has changed from what was last scanned...  check the
4328                // version of the new path against what we have stored to determine
4329                // what to do.
4330                if (DEBUG_INSTALL) Slog.d(TAG, "Path changing from " + ps.codePath);
4331                if (pkg.mVersionCode <= ps.versionCode) {
4332                    // The system package has been updated and the code path does not match
4333                    // Ignore entry. Skip it.
4334                    Slog.i(TAG, "Package " + ps.name + " at " + scanFile
4335                            + " ignored: updated version " + ps.versionCode
4336                            + " better than this " + pkg.mVersionCode);
4337                    if (!updatedPkg.codePath.equals(scanFile)) {
4338                        Slog.w(PackageManagerService.TAG, "Code path for hidden system pkg : "
4339                                + ps.name + " changing from " + updatedPkg.codePathString
4340                                + " to " + scanFile);
4341                        updatedPkg.codePath = scanFile;
4342                        updatedPkg.codePathString = scanFile.toString();
4343                        updatedPkg.resourcePath = scanFile;
4344                        updatedPkg.resourcePathString = scanFile.toString();
4345                    }
4346                    updatedPkg.pkg = pkg;
4347                    throw new PackageManagerException(INSTALL_FAILED_DUPLICATE_PACKAGE, null);
4348                } else {
4349                    // The current app on the system partition is better than
4350                    // what we have updated to on the data partition; switch
4351                    // back to the system partition version.
4352                    // At this point, its safely assumed that package installation for
4353                    // apps in system partition will go through. If not there won't be a working
4354                    // version of the app
4355                    // writer
4356                    synchronized (mPackages) {
4357                        // Just remove the loaded entries from package lists.
4358                        mPackages.remove(ps.name);
4359                    }
4360
4361                    logCriticalInfo(Log.WARN, "Package " + ps.name + " at " + scanFile
4362                            + " reverting from " + ps.codePathString
4363                            + ": new version " + pkg.mVersionCode
4364                            + " better than installed " + ps.versionCode);
4365
4366                    InstallArgs args = createInstallArgsForExisting(packageFlagsToInstallFlags(ps),
4367                            ps.codePathString, ps.resourcePathString, ps.legacyNativeLibraryPathString,
4368                            getAppDexInstructionSets(ps));
4369                    synchronized (mInstallLock) {
4370                        args.cleanUpResourcesLI();
4371                    }
4372                    synchronized (mPackages) {
4373                        mSettings.enableSystemPackageLPw(ps.name);
4374                    }
4375                    updatedPkgBetter = true;
4376                }
4377            }
4378        }
4379
4380        if (updatedPkg != null) {
4381            // An updated system app will not have the PARSE_IS_SYSTEM flag set
4382            // initially
4383            parseFlags |= PackageParser.PARSE_IS_SYSTEM;
4384
4385            // An updated privileged app will not have the PARSE_IS_PRIVILEGED
4386            // flag set initially
4387            if ((updatedPkg.pkgPrivateFlags & ApplicationInfo.PRIVATE_FLAG_PRIVILEGED) != 0) {
4388                parseFlags |= PackageParser.PARSE_IS_PRIVILEGED;
4389            }
4390        }
4391
4392        // Verify certificates against what was last scanned
4393        collectCertificatesLI(pp, ps, pkg, scanFile, parseFlags);
4394
4395        /*
4396         * A new system app appeared, but we already had a non-system one of the
4397         * same name installed earlier.
4398         */
4399        boolean shouldHideSystemApp = false;
4400        if (updatedPkg == null && ps != null
4401                && (parseFlags & PackageParser.PARSE_IS_SYSTEM_DIR) != 0 && !isSystemApp(ps)) {
4402            /*
4403             * Check to make sure the signatures match first. If they don't,
4404             * wipe the installed application and its data.
4405             */
4406            if (compareSignatures(ps.signatures.mSignatures, pkg.mSignatures)
4407                    != PackageManager.SIGNATURE_MATCH) {
4408                logCriticalInfo(Log.WARN, "Package " + ps.name + " appeared on system, but"
4409                        + " signatures don't match existing userdata copy; removing");
4410                deletePackageLI(pkg.packageName, null, true, null, null, 0, null, false);
4411                ps = null;
4412            } else {
4413                /*
4414                 * If the newly-added system app is an older version than the
4415                 * already installed version, hide it. It will be scanned later
4416                 * and re-added like an update.
4417                 */
4418                if (pkg.mVersionCode <= ps.versionCode) {
4419                    shouldHideSystemApp = true;
4420                    logCriticalInfo(Log.INFO, "Package " + ps.name + " appeared at " + scanFile
4421                            + " but new version " + pkg.mVersionCode + " better than installed "
4422                            + ps.versionCode + "; hiding system");
4423                } else {
4424                    /*
4425                     * The newly found system app is a newer version that the
4426                     * one previously installed. Simply remove the
4427                     * already-installed application and replace it with our own
4428                     * while keeping the application data.
4429                     */
4430                    logCriticalInfo(Log.WARN, "Package " + ps.name + " at " + scanFile
4431                            + " reverting from " + ps.codePathString + ": new version "
4432                            + pkg.mVersionCode + " better than installed " + ps.versionCode);
4433                    InstallArgs args = createInstallArgsForExisting(packageFlagsToInstallFlags(ps),
4434                            ps.codePathString, ps.resourcePathString, ps.legacyNativeLibraryPathString,
4435                            getAppDexInstructionSets(ps));
4436                    synchronized (mInstallLock) {
4437                        args.cleanUpResourcesLI();
4438                    }
4439                }
4440            }
4441        }
4442
4443        // The apk is forward locked (not public) if its code and resources
4444        // are kept in different files. (except for app in either system or
4445        // vendor path).
4446        // TODO grab this value from PackageSettings
4447        if ((parseFlags & PackageParser.PARSE_IS_SYSTEM_DIR) == 0) {
4448            if (ps != null && !ps.codePath.equals(ps.resourcePath)) {
4449                parseFlags |= PackageParser.PARSE_FORWARD_LOCK;
4450            }
4451        }
4452
4453        // TODO: extend to support forward-locked splits
4454        String resourcePath = null;
4455        String baseResourcePath = null;
4456        if ((parseFlags & PackageParser.PARSE_FORWARD_LOCK) != 0 && !updatedPkgBetter) {
4457            if (ps != null && ps.resourcePathString != null) {
4458                resourcePath = ps.resourcePathString;
4459                baseResourcePath = ps.resourcePathString;
4460            } else {
4461                // Should not happen at all. Just log an error.
4462                Slog.e(TAG, "Resource path not set for pkg : " + pkg.packageName);
4463            }
4464        } else {
4465            resourcePath = pkg.codePath;
4466            baseResourcePath = pkg.baseCodePath;
4467        }
4468
4469        // Set application objects path explicitly.
4470        pkg.applicationInfo.setCodePath(pkg.codePath);
4471        pkg.applicationInfo.setBaseCodePath(pkg.baseCodePath);
4472        pkg.applicationInfo.setSplitCodePaths(pkg.splitCodePaths);
4473        pkg.applicationInfo.setResourcePath(resourcePath);
4474        pkg.applicationInfo.setBaseResourcePath(baseResourcePath);
4475        pkg.applicationInfo.setSplitResourcePaths(pkg.splitCodePaths);
4476
4477        // Note that we invoke the following method only if we are about to unpack an application
4478        PackageParser.Package scannedPkg = scanPackageLI(pkg, parseFlags, scanFlags
4479                | SCAN_UPDATE_SIGNATURE, currentTime, user);
4480
4481        /*
4482         * If the system app should be overridden by a previously installed
4483         * data, hide the system app now and let the /data/app scan pick it up
4484         * again.
4485         */
4486        if (shouldHideSystemApp) {
4487            synchronized (mPackages) {
4488                /*
4489                 * We have to grant systems permissions before we hide, because
4490                 * grantPermissions will assume the package update is trying to
4491                 * expand its permissions.
4492                 */
4493                grantPermissionsLPw(pkg, true, pkg.packageName);
4494                mSettings.disableSystemPackageLPw(pkg.packageName);
4495            }
4496        }
4497
4498        return scannedPkg;
4499    }
4500
4501    private static String fixProcessName(String defProcessName,
4502            String processName, int uid) {
4503        if (processName == null) {
4504            return defProcessName;
4505        }
4506        return processName;
4507    }
4508
4509    private void verifySignaturesLP(PackageSetting pkgSetting, PackageParser.Package pkg)
4510            throws PackageManagerException {
4511        if (pkgSetting.signatures.mSignatures != null) {
4512            // Already existing package. Make sure signatures match
4513            boolean match = compareSignatures(pkgSetting.signatures.mSignatures, pkg.mSignatures)
4514                    == PackageManager.SIGNATURE_MATCH;
4515            if (!match) {
4516                match = compareSignaturesCompat(pkgSetting.signatures, pkg)
4517                        == PackageManager.SIGNATURE_MATCH;
4518            }
4519            if (!match) {
4520                match = compareSignaturesRecover(pkgSetting.signatures, pkg)
4521                        == PackageManager.SIGNATURE_MATCH;
4522            }
4523            if (!match) {
4524                throw new PackageManagerException(INSTALL_FAILED_UPDATE_INCOMPATIBLE, "Package "
4525                        + pkg.packageName + " signatures do not match the "
4526                        + "previously installed version; ignoring!");
4527            }
4528        }
4529
4530        // Check for shared user signatures
4531        if (pkgSetting.sharedUser != null && pkgSetting.sharedUser.signatures.mSignatures != null) {
4532            // Already existing package. Make sure signatures match
4533            boolean match = compareSignatures(pkgSetting.sharedUser.signatures.mSignatures,
4534                    pkg.mSignatures) == PackageManager.SIGNATURE_MATCH;
4535            if (!match) {
4536                match = compareSignaturesCompat(pkgSetting.sharedUser.signatures, pkg)
4537                        == PackageManager.SIGNATURE_MATCH;
4538            }
4539            if (!match) {
4540                match = compareSignaturesRecover(pkgSetting.sharedUser.signatures, pkg)
4541                        == PackageManager.SIGNATURE_MATCH;
4542            }
4543            if (!match) {
4544                throw new PackageManagerException(INSTALL_FAILED_SHARED_USER_INCOMPATIBLE,
4545                        "Package " + pkg.packageName
4546                        + " has no signatures that match those in shared user "
4547                        + pkgSetting.sharedUser.name + "; ignoring!");
4548            }
4549        }
4550    }
4551
4552    /**
4553     * Enforces that only the system UID or root's UID can call a method exposed
4554     * via Binder.
4555     *
4556     * @param message used as message if SecurityException is thrown
4557     * @throws SecurityException if the caller is not system or root
4558     */
4559    private static final void enforceSystemOrRoot(String message) {
4560        final int uid = Binder.getCallingUid();
4561        if (uid != Process.SYSTEM_UID && uid != 0) {
4562            throw new SecurityException(message);
4563        }
4564    }
4565
4566    @Override
4567    public void performBootDexOpt() {
4568        enforceSystemOrRoot("Only the system can request dexopt be performed");
4569
4570        // Before everything else, see whether we need to fstrim.
4571        try {
4572            IMountService ms = PackageHelper.getMountService();
4573            if (ms != null) {
4574                final boolean isUpgrade = isUpgrade();
4575                boolean doTrim = isUpgrade;
4576                if (doTrim) {
4577                    Slog.w(TAG, "Running disk maintenance immediately due to system update");
4578                } else {
4579                    final long interval = android.provider.Settings.Global.getLong(
4580                            mContext.getContentResolver(),
4581                            android.provider.Settings.Global.FSTRIM_MANDATORY_INTERVAL,
4582                            DEFAULT_MANDATORY_FSTRIM_INTERVAL);
4583                    if (interval > 0) {
4584                        final long timeSinceLast = System.currentTimeMillis() - ms.lastMaintenance();
4585                        if (timeSinceLast > interval) {
4586                            doTrim = true;
4587                            Slog.w(TAG, "No disk maintenance in " + timeSinceLast
4588                                    + "; running immediately");
4589                        }
4590                    }
4591                }
4592                if (doTrim) {
4593                    if (!isFirstBoot()) {
4594                        try {
4595                            ActivityManagerNative.getDefault().showBootMessage(
4596                                    mContext.getResources().getString(
4597                                            R.string.android_upgrading_fstrim), true);
4598                        } catch (RemoteException e) {
4599                        }
4600                    }
4601                    ms.runMaintenance();
4602                }
4603            } else {
4604                Slog.e(TAG, "Mount service unavailable!");
4605            }
4606        } catch (RemoteException e) {
4607            // Can't happen; MountService is local
4608        }
4609
4610        final ArraySet<PackageParser.Package> pkgs;
4611        synchronized (mPackages) {
4612            pkgs = mPackageDexOptimizer.clearDeferredDexOptPackages();
4613        }
4614
4615        if (pkgs != null) {
4616            // Sort apps by importance for dexopt ordering. Important apps are given more priority
4617            // in case the device runs out of space.
4618            ArrayList<PackageParser.Package> sortedPkgs = new ArrayList<PackageParser.Package>();
4619            // Give priority to core apps.
4620            for (Iterator<PackageParser.Package> it = pkgs.iterator(); it.hasNext();) {
4621                PackageParser.Package pkg = it.next();
4622                if (pkg.coreApp) {
4623                    if (DEBUG_DEXOPT) {
4624                        Log.i(TAG, "Adding core app " + sortedPkgs.size() + ": " + pkg.packageName);
4625                    }
4626                    sortedPkgs.add(pkg);
4627                    it.remove();
4628                }
4629            }
4630            // Give priority to system apps that listen for pre boot complete.
4631            Intent intent = new Intent(Intent.ACTION_PRE_BOOT_COMPLETED);
4632            ArraySet<String> pkgNames = getPackageNamesForIntent(intent);
4633            for (Iterator<PackageParser.Package> it = pkgs.iterator(); it.hasNext();) {
4634                PackageParser.Package pkg = it.next();
4635                if (pkgNames.contains(pkg.packageName)) {
4636                    if (DEBUG_DEXOPT) {
4637                        Log.i(TAG, "Adding pre boot system app " + sortedPkgs.size() + ": " + pkg.packageName);
4638                    }
4639                    sortedPkgs.add(pkg);
4640                    it.remove();
4641                }
4642            }
4643            // Give priority to system apps.
4644            for (Iterator<PackageParser.Package> it = pkgs.iterator(); it.hasNext();) {
4645                PackageParser.Package pkg = it.next();
4646                if (isSystemApp(pkg) && !pkg.isUpdatedSystemApp()) {
4647                    if (DEBUG_DEXOPT) {
4648                        Log.i(TAG, "Adding system app " + sortedPkgs.size() + ": " + pkg.packageName);
4649                    }
4650                    sortedPkgs.add(pkg);
4651                    it.remove();
4652                }
4653            }
4654            // Give priority to updated system apps.
4655            for (Iterator<PackageParser.Package> it = pkgs.iterator(); it.hasNext();) {
4656                PackageParser.Package pkg = it.next();
4657                if (pkg.isUpdatedSystemApp()) {
4658                    if (DEBUG_DEXOPT) {
4659                        Log.i(TAG, "Adding updated system app " + sortedPkgs.size() + ": " + pkg.packageName);
4660                    }
4661                    sortedPkgs.add(pkg);
4662                    it.remove();
4663                }
4664            }
4665            // Give priority to apps that listen for boot complete.
4666            intent = new Intent(Intent.ACTION_BOOT_COMPLETED);
4667            pkgNames = getPackageNamesForIntent(intent);
4668            for (Iterator<PackageParser.Package> it = pkgs.iterator(); it.hasNext();) {
4669                PackageParser.Package pkg = it.next();
4670                if (pkgNames.contains(pkg.packageName)) {
4671                    if (DEBUG_DEXOPT) {
4672                        Log.i(TAG, "Adding boot app " + sortedPkgs.size() + ": " + pkg.packageName);
4673                    }
4674                    sortedPkgs.add(pkg);
4675                    it.remove();
4676                }
4677            }
4678            // Filter out packages that aren't recently used.
4679            filterRecentlyUsedApps(pkgs);
4680            // Add all remaining apps.
4681            for (PackageParser.Package pkg : pkgs) {
4682                if (DEBUG_DEXOPT) {
4683                    Log.i(TAG, "Adding app " + sortedPkgs.size() + ": " + pkg.packageName);
4684                }
4685                sortedPkgs.add(pkg);
4686            }
4687
4688            // If we want to be lazy, filter everything that wasn't recently used.
4689            if (mLazyDexOpt) {
4690                filterRecentlyUsedApps(sortedPkgs);
4691            }
4692
4693            int i = 0;
4694            int total = sortedPkgs.size();
4695            File dataDir = Environment.getDataDirectory();
4696            long lowThreshold = StorageManager.from(mContext).getStorageLowBytes(dataDir);
4697            if (lowThreshold == 0) {
4698                throw new IllegalStateException("Invalid low memory threshold");
4699            }
4700            for (PackageParser.Package pkg : sortedPkgs) {
4701                long usableSpace = dataDir.getUsableSpace();
4702                if (usableSpace < lowThreshold) {
4703                    Log.w(TAG, "Not running dexopt on remaining apps due to low memory: " + usableSpace);
4704                    break;
4705                }
4706                performBootDexOpt(pkg, ++i, total);
4707            }
4708        }
4709    }
4710
4711    private void filterRecentlyUsedApps(Collection<PackageParser.Package> pkgs) {
4712        // Filter out packages that aren't recently used.
4713        //
4714        // The exception is first boot of a non-eng device (aka !mLazyDexOpt), which
4715        // should do a full dexopt.
4716        if (mLazyDexOpt || (!isFirstBoot() && mPackageUsage.isHistoricalPackageUsageAvailable())) {
4717            int total = pkgs.size();
4718            int skipped = 0;
4719            long now = System.currentTimeMillis();
4720            for (Iterator<PackageParser.Package> i = pkgs.iterator(); i.hasNext();) {
4721                PackageParser.Package pkg = i.next();
4722                long then = pkg.mLastPackageUsageTimeInMills;
4723                if (then + mDexOptLRUThresholdInMills < now) {
4724                    if (DEBUG_DEXOPT) {
4725                        Log.i(TAG, "Skipping dexopt of " + pkg.packageName + " last resumed: " +
4726                              ((then == 0) ? "never" : new Date(then)));
4727                    }
4728                    i.remove();
4729                    skipped++;
4730                }
4731            }
4732            if (DEBUG_DEXOPT) {
4733                Log.i(TAG, "Skipped optimizing " + skipped + " of " + total);
4734            }
4735        }
4736    }
4737
4738    private ArraySet<String> getPackageNamesForIntent(Intent intent) {
4739        List<ResolveInfo> ris = null;
4740        try {
4741            ris = AppGlobals.getPackageManager().queryIntentReceivers(
4742                    intent, null, 0, UserHandle.USER_OWNER);
4743        } catch (RemoteException e) {
4744        }
4745        ArraySet<String> pkgNames = new ArraySet<String>();
4746        if (ris != null) {
4747            for (ResolveInfo ri : ris) {
4748                pkgNames.add(ri.activityInfo.packageName);
4749            }
4750        }
4751        return pkgNames;
4752    }
4753
4754    private void performBootDexOpt(PackageParser.Package pkg, int curr, int total) {
4755        if (DEBUG_DEXOPT) {
4756            Log.i(TAG, "Optimizing app " + curr + " of " + total + ": " + pkg.packageName);
4757        }
4758        if (!isFirstBoot()) {
4759            try {
4760                ActivityManagerNative.getDefault().showBootMessage(
4761                        mContext.getResources().getString(R.string.android_upgrading_apk,
4762                                curr, total), true);
4763            } catch (RemoteException e) {
4764            }
4765        }
4766        PackageParser.Package p = pkg;
4767        synchronized (mInstallLock) {
4768            mPackageDexOptimizer.performDexOpt(p, null /* instruction sets */,
4769                    false /* force dex */, false /* defer */, true /* include dependencies */);
4770        }
4771    }
4772
4773    @Override
4774    public boolean performDexOptIfNeeded(String packageName, String instructionSet) {
4775        return performDexOpt(packageName, instructionSet, false);
4776    }
4777
4778    public boolean performDexOpt(String packageName, String instructionSet, boolean backgroundDexopt) {
4779        boolean dexopt = mLazyDexOpt || backgroundDexopt;
4780        boolean updateUsage = !backgroundDexopt;  // Don't update usage if this is just a backgroundDexopt
4781        if (!dexopt && !updateUsage) {
4782            // We aren't going to dexopt or update usage, so bail early.
4783            return false;
4784        }
4785        PackageParser.Package p;
4786        final String targetInstructionSet;
4787        synchronized (mPackages) {
4788            p = mPackages.get(packageName);
4789            if (p == null) {
4790                return false;
4791            }
4792            if (updateUsage) {
4793                p.mLastPackageUsageTimeInMills = System.currentTimeMillis();
4794            }
4795            mPackageUsage.write(false);
4796            if (!dexopt) {
4797                // We aren't going to dexopt, so bail early.
4798                return false;
4799            }
4800
4801            targetInstructionSet = instructionSet != null ? instructionSet :
4802                    getPrimaryInstructionSet(p.applicationInfo);
4803            if (p.mDexOptPerformed.contains(targetInstructionSet)) {
4804                return false;
4805            }
4806        }
4807
4808        synchronized (mInstallLock) {
4809            final String[] instructionSets = new String[] { targetInstructionSet };
4810            int result = mPackageDexOptimizer.performDexOpt(p, instructionSets,
4811                    false /* forceDex */, false /* defer */, true /* inclDependencies */);
4812            return result == PackageDexOptimizer.DEX_OPT_PERFORMED;
4813        }
4814    }
4815
4816    public ArraySet<String> getPackagesThatNeedDexOpt() {
4817        ArraySet<String> pkgs = null;
4818        synchronized (mPackages) {
4819            for (PackageParser.Package p : mPackages.values()) {
4820                if (DEBUG_DEXOPT) {
4821                    Log.i(TAG, p.packageName + " mDexOptPerformed=" + p.mDexOptPerformed.toArray());
4822                }
4823                if (!p.mDexOptPerformed.isEmpty()) {
4824                    continue;
4825                }
4826                if (pkgs == null) {
4827                    pkgs = new ArraySet<String>();
4828                }
4829                pkgs.add(p.packageName);
4830            }
4831        }
4832        return pkgs;
4833    }
4834
4835    public void shutdown() {
4836        mPackageUsage.write(true);
4837    }
4838
4839    @Override
4840    public void forceDexOpt(String packageName) {
4841        enforceSystemOrRoot("forceDexOpt");
4842
4843        PackageParser.Package pkg;
4844        synchronized (mPackages) {
4845            pkg = mPackages.get(packageName);
4846            if (pkg == null) {
4847                throw new IllegalArgumentException("Missing package: " + packageName);
4848            }
4849        }
4850
4851        synchronized (mInstallLock) {
4852            final String[] instructionSets = new String[] {
4853                    getPrimaryInstructionSet(pkg.applicationInfo) };
4854            final int res = mPackageDexOptimizer.performDexOpt(pkg, instructionSets,
4855                    true /*forceDex*/, false /* defer */, true /* inclDependencies */);
4856            if (res != PackageDexOptimizer.DEX_OPT_PERFORMED) {
4857                throw new IllegalStateException("Failed to dexopt: " + res);
4858            }
4859        }
4860    }
4861
4862    private boolean verifyPackageUpdateLPr(PackageSetting oldPkg, PackageParser.Package newPkg) {
4863        if ((oldPkg.pkgFlags&ApplicationInfo.FLAG_SYSTEM) == 0) {
4864            Slog.w(TAG, "Unable to update from " + oldPkg.name
4865                    + " to " + newPkg.packageName
4866                    + ": old package not in system partition");
4867            return false;
4868        } else if (mPackages.get(oldPkg.name) != null) {
4869            Slog.w(TAG, "Unable to update from " + oldPkg.name
4870                    + " to " + newPkg.packageName
4871                    + ": old package still exists");
4872            return false;
4873        }
4874        return true;
4875    }
4876
4877    private File getDataPathForPackage(String packageName, int userId) {
4878        /*
4879         * Until we fully support multiple users, return the directory we
4880         * previously would have. The PackageManagerTests will need to be
4881         * revised when this is changed back..
4882         */
4883        if (userId == 0) {
4884            return new File(mAppDataDir, packageName);
4885        } else {
4886            return new File(mUserAppDataDir.getAbsolutePath() + File.separator + userId
4887                + File.separator + packageName);
4888        }
4889    }
4890
4891    private int createDataDirsLI(String packageName, int uid, String seinfo) {
4892        int[] users = sUserManager.getUserIds();
4893        int res = mInstaller.install(packageName, uid, uid, seinfo);
4894        if (res < 0) {
4895            return res;
4896        }
4897        for (int user : users) {
4898            if (user != 0) {
4899                res = mInstaller.createUserData(packageName,
4900                        UserHandle.getUid(user, uid), user, seinfo);
4901                if (res < 0) {
4902                    return res;
4903                }
4904            }
4905        }
4906        return res;
4907    }
4908
4909    private int removeDataDirsLI(String packageName) {
4910        int[] users = sUserManager.getUserIds();
4911        int res = 0;
4912        for (int user : users) {
4913            int resInner = mInstaller.remove(packageName, user);
4914            if (resInner < 0) {
4915                res = resInner;
4916            }
4917        }
4918
4919        return res;
4920    }
4921
4922    private int deleteCodeCacheDirsLI(String packageName) {
4923        int[] users = sUserManager.getUserIds();
4924        int res = 0;
4925        for (int user : users) {
4926            int resInner = mInstaller.deleteCodeCacheFiles(packageName, user);
4927            if (resInner < 0) {
4928                res = resInner;
4929            }
4930        }
4931        return res;
4932    }
4933
4934    private void addSharedLibraryLPw(ArraySet<String> usesLibraryFiles, SharedLibraryEntry file,
4935            PackageParser.Package changingLib) {
4936        if (file.path != null) {
4937            usesLibraryFiles.add(file.path);
4938            return;
4939        }
4940        PackageParser.Package p = mPackages.get(file.apk);
4941        if (changingLib != null && changingLib.packageName.equals(file.apk)) {
4942            // If we are doing this while in the middle of updating a library apk,
4943            // then we need to make sure to use that new apk for determining the
4944            // dependencies here.  (We haven't yet finished committing the new apk
4945            // to the package manager state.)
4946            if (p == null || p.packageName.equals(changingLib.packageName)) {
4947                p = changingLib;
4948            }
4949        }
4950        if (p != null) {
4951            usesLibraryFiles.addAll(p.getAllCodePaths());
4952        }
4953    }
4954
4955    private void updateSharedLibrariesLPw(PackageParser.Package pkg,
4956            PackageParser.Package changingLib) throws PackageManagerException {
4957        if (pkg.usesLibraries != null || pkg.usesOptionalLibraries != null) {
4958            final ArraySet<String> usesLibraryFiles = new ArraySet<>();
4959            int N = pkg.usesLibraries != null ? pkg.usesLibraries.size() : 0;
4960            for (int i=0; i<N; i++) {
4961                final SharedLibraryEntry file = mSharedLibraries.get(pkg.usesLibraries.get(i));
4962                if (file == null) {
4963                    throw new PackageManagerException(INSTALL_FAILED_MISSING_SHARED_LIBRARY,
4964                            "Package " + pkg.packageName + " requires unavailable shared library "
4965                            + pkg.usesLibraries.get(i) + "; failing!");
4966                }
4967                addSharedLibraryLPw(usesLibraryFiles, file, changingLib);
4968            }
4969            N = pkg.usesOptionalLibraries != null ? pkg.usesOptionalLibraries.size() : 0;
4970            for (int i=0; i<N; i++) {
4971                final SharedLibraryEntry file = mSharedLibraries.get(pkg.usesOptionalLibraries.get(i));
4972                if (file == null) {
4973                    Slog.w(TAG, "Package " + pkg.packageName
4974                            + " desires unavailable shared library "
4975                            + pkg.usesOptionalLibraries.get(i) + "; ignoring!");
4976                } else {
4977                    addSharedLibraryLPw(usesLibraryFiles, file, changingLib);
4978                }
4979            }
4980            N = usesLibraryFiles.size();
4981            if (N > 0) {
4982                pkg.usesLibraryFiles = usesLibraryFiles.toArray(new String[N]);
4983            } else {
4984                pkg.usesLibraryFiles = null;
4985            }
4986        }
4987    }
4988
4989    private static boolean hasString(List<String> list, List<String> which) {
4990        if (list == null) {
4991            return false;
4992        }
4993        for (int i=list.size()-1; i>=0; i--) {
4994            for (int j=which.size()-1; j>=0; j--) {
4995                if (which.get(j).equals(list.get(i))) {
4996                    return true;
4997                }
4998            }
4999        }
5000        return false;
5001    }
5002
5003    private void updateAllSharedLibrariesLPw() {
5004        for (PackageParser.Package pkg : mPackages.values()) {
5005            try {
5006                updateSharedLibrariesLPw(pkg, null);
5007            } catch (PackageManagerException e) {
5008                Slog.e(TAG, "updateAllSharedLibrariesLPw failed: " + e.getMessage());
5009            }
5010        }
5011    }
5012
5013    private ArrayList<PackageParser.Package> updateAllSharedLibrariesLPw(
5014            PackageParser.Package changingPkg) {
5015        ArrayList<PackageParser.Package> res = null;
5016        for (PackageParser.Package pkg : mPackages.values()) {
5017            if (hasString(pkg.usesLibraries, changingPkg.libraryNames)
5018                    || hasString(pkg.usesOptionalLibraries, changingPkg.libraryNames)) {
5019                if (res == null) {
5020                    res = new ArrayList<PackageParser.Package>();
5021                }
5022                res.add(pkg);
5023                try {
5024                    updateSharedLibrariesLPw(pkg, changingPkg);
5025                } catch (PackageManagerException e) {
5026                    Slog.e(TAG, "updateAllSharedLibrariesLPw failed: " + e.getMessage());
5027                }
5028            }
5029        }
5030        return res;
5031    }
5032
5033    /**
5034     * Derive the value of the {@code cpuAbiOverride} based on the provided
5035     * value and an optional stored value from the package settings.
5036     */
5037    private static String deriveAbiOverride(String abiOverride, PackageSetting settings) {
5038        String cpuAbiOverride = null;
5039
5040        if (NativeLibraryHelper.CLEAR_ABI_OVERRIDE.equals(abiOverride)) {
5041            cpuAbiOverride = null;
5042        } else if (abiOverride != null) {
5043            cpuAbiOverride = abiOverride;
5044        } else if (settings != null) {
5045            cpuAbiOverride = settings.cpuAbiOverrideString;
5046        }
5047
5048        return cpuAbiOverride;
5049    }
5050
5051    private PackageParser.Package scanPackageLI(PackageParser.Package pkg, int parseFlags,
5052            int scanFlags, long currentTime, UserHandle user) throws PackageManagerException {
5053        boolean success = false;
5054        try {
5055            final PackageParser.Package res = scanPackageDirtyLI(pkg, parseFlags, scanFlags,
5056                    currentTime, user);
5057            success = true;
5058            return res;
5059        } finally {
5060            if (!success && (scanFlags & SCAN_DELETE_DATA_ON_FAILURES) != 0) {
5061                removeDataDirsLI(pkg.packageName);
5062            }
5063        }
5064    }
5065
5066    private PackageParser.Package scanPackageDirtyLI(PackageParser.Package pkg, int parseFlags,
5067            int scanFlags, long currentTime, UserHandle user) throws PackageManagerException {
5068        final File scanFile = new File(pkg.codePath);
5069        if (pkg.applicationInfo.getCodePath() == null ||
5070                pkg.applicationInfo.getResourcePath() == null) {
5071            // Bail out. The resource and code paths haven't been set.
5072            throw new PackageManagerException(INSTALL_FAILED_INVALID_APK,
5073                    "Code and resource paths haven't been set correctly");
5074        }
5075
5076        if ((parseFlags&PackageParser.PARSE_IS_SYSTEM) != 0) {
5077            pkg.applicationInfo.flags |= ApplicationInfo.FLAG_SYSTEM;
5078        } else {
5079            // Only allow system apps to be flagged as core apps.
5080            pkg.coreApp = false;
5081        }
5082
5083        if ((parseFlags&PackageParser.PARSE_IS_PRIVILEGED) != 0) {
5084            pkg.applicationInfo.privateFlags |= ApplicationInfo.PRIVATE_FLAG_PRIVILEGED;
5085        }
5086
5087        if (mCustomResolverComponentName != null &&
5088                mCustomResolverComponentName.getPackageName().equals(pkg.packageName)) {
5089            setUpCustomResolverActivity(pkg);
5090        }
5091
5092        if (pkg.packageName.equals("android")) {
5093            synchronized (mPackages) {
5094                if (mAndroidApplication != null) {
5095                    Slog.w(TAG, "*************************************************");
5096                    Slog.w(TAG, "Core android package being redefined.  Skipping.");
5097                    Slog.w(TAG, " file=" + scanFile);
5098                    Slog.w(TAG, "*************************************************");
5099                    throw new PackageManagerException(INSTALL_FAILED_DUPLICATE_PACKAGE,
5100                            "Core android package being redefined.  Skipping.");
5101                }
5102
5103                // Set up information for our fall-back user intent resolution activity.
5104                mPlatformPackage = pkg;
5105                pkg.mVersionCode = mSdkVersion;
5106                mAndroidApplication = pkg.applicationInfo;
5107
5108                if (!mResolverReplaced) {
5109                    mResolveActivity.applicationInfo = mAndroidApplication;
5110                    mResolveActivity.name = ResolverActivity.class.getName();
5111                    mResolveActivity.packageName = mAndroidApplication.packageName;
5112                    mResolveActivity.processName = "system:ui";
5113                    mResolveActivity.launchMode = ActivityInfo.LAUNCH_MULTIPLE;
5114                    mResolveActivity.documentLaunchMode = ActivityInfo.DOCUMENT_LAUNCH_NEVER;
5115                    mResolveActivity.flags = ActivityInfo.FLAG_EXCLUDE_FROM_RECENTS;
5116                    mResolveActivity.theme = R.style.Theme_Holo_Dialog_Alert;
5117                    mResolveActivity.exported = true;
5118                    mResolveActivity.enabled = true;
5119                    mResolveInfo.activityInfo = mResolveActivity;
5120                    mResolveInfo.priority = 0;
5121                    mResolveInfo.preferredOrder = 0;
5122                    mResolveInfo.match = 0;
5123                    mResolveComponentName = new ComponentName(
5124                            mAndroidApplication.packageName, mResolveActivity.name);
5125                }
5126            }
5127        }
5128
5129        if (DEBUG_PACKAGE_SCANNING) {
5130            if ((parseFlags & PackageParser.PARSE_CHATTY) != 0)
5131                Log.d(TAG, "Scanning package " + pkg.packageName);
5132        }
5133
5134        if (mPackages.containsKey(pkg.packageName)
5135                || mSharedLibraries.containsKey(pkg.packageName)) {
5136            throw new PackageManagerException(INSTALL_FAILED_DUPLICATE_PACKAGE,
5137                    "Application package " + pkg.packageName
5138                    + " already installed.  Skipping duplicate.");
5139        }
5140
5141        // Initialize package source and resource directories
5142        File destCodeFile = new File(pkg.applicationInfo.getCodePath());
5143        File destResourceFile = new File(pkg.applicationInfo.getResourcePath());
5144
5145        SharedUserSetting suid = null;
5146        PackageSetting pkgSetting = null;
5147
5148        if (!isSystemApp(pkg)) {
5149            // Only system apps can use these features.
5150            pkg.mOriginalPackages = null;
5151            pkg.mRealPackage = null;
5152            pkg.mAdoptPermissions = null;
5153        }
5154
5155        // writer
5156        synchronized (mPackages) {
5157            if (pkg.mSharedUserId != null) {
5158                suid = mSettings.getSharedUserLPw(pkg.mSharedUserId, 0, 0, true);
5159                if (suid == null) {
5160                    throw new PackageManagerException(INSTALL_FAILED_INSUFFICIENT_STORAGE,
5161                            "Creating application package " + pkg.packageName
5162                            + " for shared user failed");
5163                }
5164                if (DEBUG_PACKAGE_SCANNING) {
5165                    if ((parseFlags & PackageParser.PARSE_CHATTY) != 0)
5166                        Log.d(TAG, "Shared UserID " + pkg.mSharedUserId + " (uid=" + suid.userId
5167                                + "): packages=" + suid.packages);
5168                }
5169            }
5170
5171            // Check if we are renaming from an original package name.
5172            PackageSetting origPackage = null;
5173            String realName = null;
5174            if (pkg.mOriginalPackages != null) {
5175                // This package may need to be renamed to a previously
5176                // installed name.  Let's check on that...
5177                final String renamed = mSettings.mRenamedPackages.get(pkg.mRealPackage);
5178                if (pkg.mOriginalPackages.contains(renamed)) {
5179                    // This package had originally been installed as the
5180                    // original name, and we have already taken care of
5181                    // transitioning to the new one.  Just update the new
5182                    // one to continue using the old name.
5183                    realName = pkg.mRealPackage;
5184                    if (!pkg.packageName.equals(renamed)) {
5185                        // Callers into this function may have already taken
5186                        // care of renaming the package; only do it here if
5187                        // it is not already done.
5188                        pkg.setPackageName(renamed);
5189                    }
5190
5191                } else {
5192                    for (int i=pkg.mOriginalPackages.size()-1; i>=0; i--) {
5193                        if ((origPackage = mSettings.peekPackageLPr(
5194                                pkg.mOriginalPackages.get(i))) != null) {
5195                            // We do have the package already installed under its
5196                            // original name...  should we use it?
5197                            if (!verifyPackageUpdateLPr(origPackage, pkg)) {
5198                                // New package is not compatible with original.
5199                                origPackage = null;
5200                                continue;
5201                            } else if (origPackage.sharedUser != null) {
5202                                // Make sure uid is compatible between packages.
5203                                if (!origPackage.sharedUser.name.equals(pkg.mSharedUserId)) {
5204                                    Slog.w(TAG, "Unable to migrate data from " + origPackage.name
5205                                            + " to " + pkg.packageName + ": old uid "
5206                                            + origPackage.sharedUser.name
5207                                            + " differs from " + pkg.mSharedUserId);
5208                                    origPackage = null;
5209                                    continue;
5210                                }
5211                            } else {
5212                                if (DEBUG_UPGRADE) Log.v(TAG, "Renaming new package "
5213                                        + pkg.packageName + " to old name " + origPackage.name);
5214                            }
5215                            break;
5216                        }
5217                    }
5218                }
5219            }
5220
5221            if (mTransferedPackages.contains(pkg.packageName)) {
5222                Slog.w(TAG, "Package " + pkg.packageName
5223                        + " was transferred to another, but its .apk remains");
5224            }
5225
5226            // Just create the setting, don't add it yet. For already existing packages
5227            // the PkgSetting exists already and doesn't have to be created.
5228            pkgSetting = mSettings.getPackageLPw(pkg, origPackage, realName, suid, destCodeFile,
5229                    destResourceFile, pkg.applicationInfo.nativeLibraryRootDir,
5230                    pkg.applicationInfo.primaryCpuAbi,
5231                    pkg.applicationInfo.secondaryCpuAbi,
5232                    pkg.applicationInfo.flags, pkg.applicationInfo.privateFlags,
5233                    user, false);
5234            if (pkgSetting == null) {
5235                throw new PackageManagerException(INSTALL_FAILED_INSUFFICIENT_STORAGE,
5236                        "Creating application package " + pkg.packageName + " failed");
5237            }
5238
5239            if (pkgSetting.origPackage != null) {
5240                // If we are first transitioning from an original package,
5241                // fix up the new package's name now.  We need to do this after
5242                // looking up the package under its new name, so getPackageLP
5243                // can take care of fiddling things correctly.
5244                pkg.setPackageName(origPackage.name);
5245
5246                // File a report about this.
5247                String msg = "New package " + pkgSetting.realName
5248                        + " renamed to replace old package " + pkgSetting.name;
5249                reportSettingsProblem(Log.WARN, msg);
5250
5251                // Make a note of it.
5252                mTransferedPackages.add(origPackage.name);
5253
5254                // No longer need to retain this.
5255                pkgSetting.origPackage = null;
5256            }
5257
5258            if (realName != null) {
5259                // Make a note of it.
5260                mTransferedPackages.add(pkg.packageName);
5261            }
5262
5263            if (mSettings.isDisabledSystemPackageLPr(pkg.packageName)) {
5264                pkg.applicationInfo.flags |= ApplicationInfo.FLAG_UPDATED_SYSTEM_APP;
5265            }
5266
5267            if ((parseFlags&PackageParser.PARSE_IS_SYSTEM_DIR) == 0) {
5268                // Check all shared libraries and map to their actual file path.
5269                // We only do this here for apps not on a system dir, because those
5270                // are the only ones that can fail an install due to this.  We
5271                // will take care of the system apps by updating all of their
5272                // library paths after the scan is done.
5273                updateSharedLibrariesLPw(pkg, null);
5274            }
5275
5276            if (mFoundPolicyFile) {
5277                SELinuxMMAC.assignSeinfoValue(pkg);
5278            }
5279
5280            pkg.applicationInfo.uid = pkgSetting.appId;
5281            pkg.mExtras = pkgSetting;
5282            if (!pkgSetting.keySetData.isUsingUpgradeKeySets() || pkgSetting.sharedUser != null) {
5283                try {
5284                    verifySignaturesLP(pkgSetting, pkg);
5285                    // We just determined the app is signed correctly, so bring
5286                    // over the latest parsed certs.
5287                    pkgSetting.signatures.mSignatures = pkg.mSignatures;
5288                } catch (PackageManagerException e) {
5289                    if ((parseFlags & PackageParser.PARSE_IS_SYSTEM_DIR) == 0) {
5290                        throw e;
5291                    }
5292                    // The signature has changed, but this package is in the system
5293                    // image...  let's recover!
5294                    pkgSetting.signatures.mSignatures = pkg.mSignatures;
5295                    // However...  if this package is part of a shared user, but it
5296                    // doesn't match the signature of the shared user, let's fail.
5297                    // What this means is that you can't change the signatures
5298                    // associated with an overall shared user, which doesn't seem all
5299                    // that unreasonable.
5300                    if (pkgSetting.sharedUser != null) {
5301                        if (compareSignatures(pkgSetting.sharedUser.signatures.mSignatures,
5302                                              pkg.mSignatures) != PackageManager.SIGNATURE_MATCH) {
5303                            throw new PackageManagerException(
5304                                    INSTALL_PARSE_FAILED_INCONSISTENT_CERTIFICATES,
5305                                            "Signature mismatch for shared user : "
5306                                            + pkgSetting.sharedUser);
5307                        }
5308                    }
5309                    // File a report about this.
5310                    String msg = "System package " + pkg.packageName
5311                        + " signature changed; retaining data.";
5312                    reportSettingsProblem(Log.WARN, msg);
5313                }
5314            } else {
5315                if (!checkUpgradeKeySetLP(pkgSetting, pkg)) {
5316                    throw new PackageManagerException(INSTALL_FAILED_UPDATE_INCOMPATIBLE, "Package "
5317                            + pkg.packageName + " upgrade keys do not match the "
5318                            + "previously installed version");
5319                } else {
5320                    // We just determined the app is signed correctly, so bring
5321                    // over the latest parsed certs.
5322                    pkgSetting.signatures.mSignatures = pkg.mSignatures;
5323                }
5324            }
5325            // Verify that this new package doesn't have any content providers
5326            // that conflict with existing packages.  Only do this if the
5327            // package isn't already installed, since we don't want to break
5328            // things that are installed.
5329            if ((scanFlags & SCAN_NEW_INSTALL) != 0) {
5330                final int N = pkg.providers.size();
5331                int i;
5332                for (i=0; i<N; i++) {
5333                    PackageParser.Provider p = pkg.providers.get(i);
5334                    if (p.info.authority != null) {
5335                        String names[] = p.info.authority.split(";");
5336                        for (int j = 0; j < names.length; j++) {
5337                            if (mProvidersByAuthority.containsKey(names[j])) {
5338                                PackageParser.Provider other = mProvidersByAuthority.get(names[j]);
5339                                final String otherPackageName =
5340                                        ((other != null && other.getComponentName() != null) ?
5341                                                other.getComponentName().getPackageName() : "?");
5342                                throw new PackageManagerException(
5343                                        INSTALL_FAILED_CONFLICTING_PROVIDER,
5344                                                "Can't install because provider name " + names[j]
5345                                                + " (in package " + pkg.applicationInfo.packageName
5346                                                + ") is already used by " + otherPackageName);
5347                            }
5348                        }
5349                    }
5350                }
5351            }
5352
5353            if (pkg.mAdoptPermissions != null) {
5354                // This package wants to adopt ownership of permissions from
5355                // another package.
5356                for (int i = pkg.mAdoptPermissions.size() - 1; i >= 0; i--) {
5357                    final String origName = pkg.mAdoptPermissions.get(i);
5358                    final PackageSetting orig = mSettings.peekPackageLPr(origName);
5359                    if (orig != null) {
5360                        if (verifyPackageUpdateLPr(orig, pkg)) {
5361                            Slog.i(TAG, "Adopting permissions from " + origName + " to "
5362                                    + pkg.packageName);
5363                            mSettings.transferPermissionsLPw(origName, pkg.packageName);
5364                        }
5365                    }
5366                }
5367            }
5368        }
5369
5370        final String pkgName = pkg.packageName;
5371
5372        final long scanFileTime = scanFile.lastModified();
5373        final boolean forceDex = (scanFlags & SCAN_FORCE_DEX) != 0;
5374        pkg.applicationInfo.processName = fixProcessName(
5375                pkg.applicationInfo.packageName,
5376                pkg.applicationInfo.processName,
5377                pkg.applicationInfo.uid);
5378
5379        File dataPath;
5380        if (mPlatformPackage == pkg) {
5381            // The system package is special.
5382            dataPath = new File(Environment.getDataDirectory(), "system");
5383
5384            pkg.applicationInfo.dataDir = dataPath.getPath();
5385
5386        } else {
5387            // This is a normal package, need to make its data directory.
5388            dataPath = getDataPathForPackage(pkg.packageName, 0);
5389
5390            boolean uidError = false;
5391            if (dataPath.exists()) {
5392                int currentUid = 0;
5393                try {
5394                    StructStat stat = Os.stat(dataPath.getPath());
5395                    currentUid = stat.st_uid;
5396                } catch (ErrnoException e) {
5397                    Slog.e(TAG, "Couldn't stat path " + dataPath.getPath(), e);
5398                }
5399
5400                // If we have mismatched owners for the data path, we have a problem.
5401                if (currentUid != pkg.applicationInfo.uid) {
5402                    boolean recovered = false;
5403                    if (currentUid == 0) {
5404                        // The directory somehow became owned by root.  Wow.
5405                        // This is probably because the system was stopped while
5406                        // installd was in the middle of messing with its libs
5407                        // directory.  Ask installd to fix that.
5408                        int ret = mInstaller.fixUid(pkgName, pkg.applicationInfo.uid,
5409                                pkg.applicationInfo.uid);
5410                        if (ret >= 0) {
5411                            recovered = true;
5412                            String msg = "Package " + pkg.packageName
5413                                    + " unexpectedly changed to uid 0; recovered to " +
5414                                    + pkg.applicationInfo.uid;
5415                            reportSettingsProblem(Log.WARN, msg);
5416                        }
5417                    }
5418                    if (!recovered && ((parseFlags&PackageParser.PARSE_IS_SYSTEM) != 0
5419                            || (scanFlags&SCAN_BOOTING) != 0)) {
5420                        // If this is a system app, we can at least delete its
5421                        // current data so the application will still work.
5422                        int ret = removeDataDirsLI(pkgName);
5423                        if (ret >= 0) {
5424                            // TODO: Kill the processes first
5425                            // Old data gone!
5426                            String prefix = (parseFlags&PackageParser.PARSE_IS_SYSTEM) != 0
5427                                    ? "System package " : "Third party package ";
5428                            String msg = prefix + pkg.packageName
5429                                    + " has changed from uid: "
5430                                    + currentUid + " to "
5431                                    + pkg.applicationInfo.uid + "; old data erased";
5432                            reportSettingsProblem(Log.WARN, msg);
5433                            recovered = true;
5434
5435                            // And now re-install the app.
5436                            ret = createDataDirsLI(pkgName, pkg.applicationInfo.uid,
5437                                                   pkg.applicationInfo.seinfo);
5438                            if (ret == -1) {
5439                                // Ack should not happen!
5440                                msg = prefix + pkg.packageName
5441                                        + " could not have data directory re-created after delete.";
5442                                reportSettingsProblem(Log.WARN, msg);
5443                                throw new PackageManagerException(
5444                                        INSTALL_FAILED_INSUFFICIENT_STORAGE, msg);
5445                            }
5446                        }
5447                        if (!recovered) {
5448                            mHasSystemUidErrors = true;
5449                        }
5450                    } else if (!recovered) {
5451                        // If we allow this install to proceed, we will be broken.
5452                        // Abort, abort!
5453                        throw new PackageManagerException(INSTALL_FAILED_UID_CHANGED,
5454                                "scanPackageLI");
5455                    }
5456                    if (!recovered) {
5457                        pkg.applicationInfo.dataDir = "/mismatched_uid/settings_"
5458                            + pkg.applicationInfo.uid + "/fs_"
5459                            + currentUid;
5460                        pkg.applicationInfo.nativeLibraryDir = pkg.applicationInfo.dataDir;
5461                        pkg.applicationInfo.nativeLibraryRootDir = pkg.applicationInfo.dataDir;
5462                        String msg = "Package " + pkg.packageName
5463                                + " has mismatched uid: "
5464                                + currentUid + " on disk, "
5465                                + pkg.applicationInfo.uid + " in settings";
5466                        // writer
5467                        synchronized (mPackages) {
5468                            mSettings.mReadMessages.append(msg);
5469                            mSettings.mReadMessages.append('\n');
5470                            uidError = true;
5471                            if (!pkgSetting.uidError) {
5472                                reportSettingsProblem(Log.ERROR, msg);
5473                            }
5474                        }
5475                    }
5476                }
5477                pkg.applicationInfo.dataDir = dataPath.getPath();
5478                if (mShouldRestoreconData) {
5479                    Slog.i(TAG, "SELinux relabeling of " + pkg.packageName + " issued.");
5480                    mInstaller.restoreconData(pkg.packageName, pkg.applicationInfo.seinfo,
5481                                pkg.applicationInfo.uid);
5482                }
5483            } else {
5484                if (DEBUG_PACKAGE_SCANNING) {
5485                    if ((parseFlags & PackageParser.PARSE_CHATTY) != 0)
5486                        Log.v(TAG, "Want this data dir: " + dataPath);
5487                }
5488                //invoke installer to do the actual installation
5489                int ret = createDataDirsLI(pkgName, pkg.applicationInfo.uid,
5490                                           pkg.applicationInfo.seinfo);
5491                if (ret < 0) {
5492                    // Error from installer
5493                    throw new PackageManagerException(INSTALL_FAILED_INSUFFICIENT_STORAGE,
5494                            "Unable to create data dirs [errorCode=" + ret + "]");
5495                }
5496
5497                if (dataPath.exists()) {
5498                    pkg.applicationInfo.dataDir = dataPath.getPath();
5499                } else {
5500                    Slog.w(TAG, "Unable to create data directory: " + dataPath);
5501                    pkg.applicationInfo.dataDir = null;
5502                }
5503            }
5504
5505            pkgSetting.uidError = uidError;
5506        }
5507
5508        final String path = scanFile.getPath();
5509        final String codePath = pkg.applicationInfo.getCodePath();
5510        final String cpuAbiOverride = deriveAbiOverride(pkg.cpuAbiOverride, pkgSetting);
5511        if (isSystemApp(pkg) && !pkg.isUpdatedSystemApp()) {
5512            setBundledAppAbisAndRoots(pkg, pkgSetting);
5513
5514            // If we haven't found any native libraries for the app, check if it has
5515            // renderscript code. We'll need to force the app to 32 bit if it has
5516            // renderscript bitcode.
5517            if (pkg.applicationInfo.primaryCpuAbi == null
5518                    && pkg.applicationInfo.secondaryCpuAbi == null
5519                    && Build.SUPPORTED_64_BIT_ABIS.length >  0) {
5520                NativeLibraryHelper.Handle handle = null;
5521                try {
5522                    handle = NativeLibraryHelper.Handle.create(scanFile);
5523                    if (NativeLibraryHelper.hasRenderscriptBitcode(handle)) {
5524                        pkg.applicationInfo.primaryCpuAbi = Build.SUPPORTED_32_BIT_ABIS[0];
5525                    }
5526                } catch (IOException ioe) {
5527                    Slog.w(TAG, "Error scanning system app : " + ioe);
5528                } finally {
5529                    IoUtils.closeQuietly(handle);
5530                }
5531            }
5532
5533            setNativeLibraryPaths(pkg);
5534        } else {
5535            // TODO: We can probably be smarter about this stuff. For installed apps,
5536            // we can calculate this information at install time once and for all. For
5537            // system apps, we can probably assume that this information doesn't change
5538            // after the first boot scan. As things stand, we do lots of unnecessary work.
5539
5540            // Give ourselves some initial paths; we'll come back for another
5541            // pass once we've determined ABI below.
5542            setNativeLibraryPaths(pkg);
5543
5544            final boolean isAsec = pkg.isForwardLocked() || isExternal(pkg);
5545            final String nativeLibraryRootStr = pkg.applicationInfo.nativeLibraryRootDir;
5546            final boolean useIsaSpecificSubdirs = pkg.applicationInfo.nativeLibraryRootRequiresIsa;
5547
5548            NativeLibraryHelper.Handle handle = null;
5549            try {
5550                handle = NativeLibraryHelper.Handle.create(scanFile);
5551                // TODO(multiArch): This can be null for apps that didn't go through the
5552                // usual installation process. We can calculate it again, like we
5553                // do during install time.
5554                //
5555                // TODO(multiArch): Why do we need to rescan ASEC apps again ? It seems totally
5556                // unnecessary.
5557                final File nativeLibraryRoot = new File(nativeLibraryRootStr);
5558
5559                // Null out the abis so that they can be recalculated.
5560                pkg.applicationInfo.primaryCpuAbi = null;
5561                pkg.applicationInfo.secondaryCpuAbi = null;
5562                if (isMultiArch(pkg.applicationInfo)) {
5563                    // Warn if we've set an abiOverride for multi-lib packages..
5564                    // By definition, we need to copy both 32 and 64 bit libraries for
5565                    // such packages.
5566                    if (pkg.cpuAbiOverride != null
5567                            && !NativeLibraryHelper.CLEAR_ABI_OVERRIDE.equals(pkg.cpuAbiOverride)) {
5568                        Slog.w(TAG, "Ignoring abiOverride for multi arch application.");
5569                    }
5570
5571                    int abi32 = PackageManager.NO_NATIVE_LIBRARIES;
5572                    int abi64 = PackageManager.NO_NATIVE_LIBRARIES;
5573                    if (Build.SUPPORTED_32_BIT_ABIS.length > 0) {
5574                        if (isAsec) {
5575                            abi32 = NativeLibraryHelper.findSupportedAbi(handle, Build.SUPPORTED_32_BIT_ABIS);
5576                        } else {
5577                            abi32 = NativeLibraryHelper.copyNativeBinariesForSupportedAbi(handle,
5578                                    nativeLibraryRoot, Build.SUPPORTED_32_BIT_ABIS,
5579                                    useIsaSpecificSubdirs);
5580                        }
5581                    }
5582
5583                    maybeThrowExceptionForMultiArchCopy(
5584                            "Error unpackaging 32 bit native libs for multiarch app.", abi32);
5585
5586                    if (Build.SUPPORTED_64_BIT_ABIS.length > 0) {
5587                        if (isAsec) {
5588                            abi64 = NativeLibraryHelper.findSupportedAbi(handle, Build.SUPPORTED_64_BIT_ABIS);
5589                        } else {
5590                            abi64 = NativeLibraryHelper.copyNativeBinariesForSupportedAbi(handle,
5591                                    nativeLibraryRoot, Build.SUPPORTED_64_BIT_ABIS,
5592                                    useIsaSpecificSubdirs);
5593                        }
5594                    }
5595
5596                    maybeThrowExceptionForMultiArchCopy(
5597                            "Error unpackaging 64 bit native libs for multiarch app.", abi64);
5598
5599                    if (abi64 >= 0) {
5600                        pkg.applicationInfo.primaryCpuAbi = Build.SUPPORTED_64_BIT_ABIS[abi64];
5601                    }
5602
5603                    if (abi32 >= 0) {
5604                        final String abi = Build.SUPPORTED_32_BIT_ABIS[abi32];
5605                        if (abi64 >= 0) {
5606                            pkg.applicationInfo.secondaryCpuAbi = abi;
5607                        } else {
5608                            pkg.applicationInfo.primaryCpuAbi = abi;
5609                        }
5610                    }
5611                } else {
5612                    String[] abiList = (cpuAbiOverride != null) ?
5613                            new String[] { cpuAbiOverride } : Build.SUPPORTED_ABIS;
5614
5615                    // Enable gross and lame hacks for apps that are built with old
5616                    // SDK tools. We must scan their APKs for renderscript bitcode and
5617                    // not launch them if it's present. Don't bother checking on devices
5618                    // that don't have 64 bit support.
5619                    boolean needsRenderScriptOverride = false;
5620                    if (Build.SUPPORTED_64_BIT_ABIS.length > 0 && cpuAbiOverride == null &&
5621                            NativeLibraryHelper.hasRenderscriptBitcode(handle)) {
5622                        abiList = Build.SUPPORTED_32_BIT_ABIS;
5623                        needsRenderScriptOverride = true;
5624                    }
5625
5626                    final int copyRet;
5627                    if (isAsec) {
5628                        copyRet = NativeLibraryHelper.findSupportedAbi(handle, abiList);
5629                    } else {
5630                        copyRet = NativeLibraryHelper.copyNativeBinariesForSupportedAbi(handle,
5631                                nativeLibraryRoot, abiList, useIsaSpecificSubdirs);
5632                    }
5633
5634                    if (copyRet < 0 && copyRet != PackageManager.NO_NATIVE_LIBRARIES) {
5635                        throw new PackageManagerException(INSTALL_FAILED_INTERNAL_ERROR,
5636                                "Error unpackaging native libs for app, errorCode=" + copyRet);
5637                    }
5638
5639                    if (copyRet >= 0) {
5640                        pkg.applicationInfo.primaryCpuAbi = abiList[copyRet];
5641                    } else if (copyRet == PackageManager.NO_NATIVE_LIBRARIES && cpuAbiOverride != null) {
5642                        pkg.applicationInfo.primaryCpuAbi = cpuAbiOverride;
5643                    } else if (needsRenderScriptOverride) {
5644                        pkg.applicationInfo.primaryCpuAbi = abiList[0];
5645                    }
5646                }
5647            } catch (IOException ioe) {
5648                Slog.e(TAG, "Unable to get canonical file " + ioe.toString());
5649            } finally {
5650                IoUtils.closeQuietly(handle);
5651            }
5652
5653            // Now that we've calculated the ABIs and determined if it's an internal app,
5654            // we will go ahead and populate the nativeLibraryPath.
5655            setNativeLibraryPaths(pkg);
5656
5657            if (DEBUG_INSTALL) Slog.i(TAG, "Linking native library dir for " + path);
5658            final int[] userIds = sUserManager.getUserIds();
5659            synchronized (mInstallLock) {
5660                // Create a native library symlink only if we have native libraries
5661                // and if the native libraries are 32 bit libraries. We do not provide
5662                // this symlink for 64 bit libraries.
5663                if (pkg.applicationInfo.primaryCpuAbi != null &&
5664                        !VMRuntime.is64BitAbi(pkg.applicationInfo.primaryCpuAbi)) {
5665                    final String nativeLibPath = pkg.applicationInfo.nativeLibraryDir;
5666                    for (int userId : userIds) {
5667                        if (mInstaller.linkNativeLibraryDirectory(pkg.packageName, nativeLibPath, userId) < 0) {
5668                            throw new PackageManagerException(INSTALL_FAILED_INTERNAL_ERROR,
5669                                    "Failed linking native library dir (user=" + userId + ")");
5670                        }
5671                    }
5672                }
5673            }
5674        }
5675
5676        // This is a special case for the "system" package, where the ABI is
5677        // dictated by the zygote configuration (and init.rc). We should keep track
5678        // of this ABI so that we can deal with "normal" applications that run under
5679        // the same UID correctly.
5680        if (mPlatformPackage == pkg) {
5681            pkg.applicationInfo.primaryCpuAbi = VMRuntime.getRuntime().is64Bit() ?
5682                    Build.SUPPORTED_64_BIT_ABIS[0] : Build.SUPPORTED_32_BIT_ABIS[0];
5683        }
5684
5685        pkgSetting.primaryCpuAbiString = pkg.applicationInfo.primaryCpuAbi;
5686        pkgSetting.secondaryCpuAbiString = pkg.applicationInfo.secondaryCpuAbi;
5687        pkgSetting.cpuAbiOverrideString = cpuAbiOverride;
5688        // Copy the derived override back to the parsed package, so that we can
5689        // update the package settings accordingly.
5690        pkg.cpuAbiOverride = cpuAbiOverride;
5691
5692        if (DEBUG_ABI_SELECTION) {
5693            Slog.d(TAG, "Resolved nativeLibraryRoot for " + pkg.applicationInfo.packageName
5694                    + " to root=" + pkg.applicationInfo.nativeLibraryRootDir + ", isa="
5695                    + pkg.applicationInfo.nativeLibraryRootRequiresIsa);
5696        }
5697
5698        // Push the derived path down into PackageSettings so we know what to
5699        // clean up at uninstall time.
5700        pkgSetting.legacyNativeLibraryPathString = pkg.applicationInfo.nativeLibraryRootDir;
5701
5702        if (DEBUG_ABI_SELECTION) {
5703            Log.d(TAG, "Abis for package[" + pkg.packageName + "] are" +
5704                    " primary=" + pkg.applicationInfo.primaryCpuAbi +
5705                    " secondary=" + pkg.applicationInfo.secondaryCpuAbi);
5706        }
5707
5708        if ((scanFlags&SCAN_BOOTING) == 0 && pkgSetting.sharedUser != null) {
5709            // We don't do this here during boot because we can do it all
5710            // at once after scanning all existing packages.
5711            //
5712            // We also do this *before* we perform dexopt on this package, so that
5713            // we can avoid redundant dexopts, and also to make sure we've got the
5714            // code and package path correct.
5715            adjustCpuAbisForSharedUserLPw(pkgSetting.sharedUser.packages,
5716                    pkg, forceDex, (scanFlags & SCAN_DEFER_DEX) != 0);
5717        }
5718
5719        if ((scanFlags & SCAN_NO_DEX) == 0) {
5720            int result = mPackageDexOptimizer.performDexOpt(pkg, null /* instruction sets */,
5721                    forceDex, (scanFlags & SCAN_DEFER_DEX) != 0, false /* inclDependencies */);
5722            if (result == PackageDexOptimizer.DEX_OPT_FAILED) {
5723                throw new PackageManagerException(INSTALL_FAILED_DEXOPT, "scanPackageLI");
5724            }
5725        }
5726        if (mFactoryTest && pkg.requestedPermissions.contains(
5727                android.Manifest.permission.FACTORY_TEST)) {
5728            pkg.applicationInfo.flags |= ApplicationInfo.FLAG_FACTORY_TEST;
5729        }
5730
5731        ArrayList<PackageParser.Package> clientLibPkgs = null;
5732
5733        // writer
5734        synchronized (mPackages) {
5735            if ((pkg.applicationInfo.flags&ApplicationInfo.FLAG_SYSTEM) != 0) {
5736                // Only system apps can add new shared libraries.
5737                if (pkg.libraryNames != null) {
5738                    for (int i=0; i<pkg.libraryNames.size(); i++) {
5739                        String name = pkg.libraryNames.get(i);
5740                        boolean allowed = false;
5741                        if (pkg.isUpdatedSystemApp()) {
5742                            // New library entries can only be added through the
5743                            // system image.  This is important to get rid of a lot
5744                            // of nasty edge cases: for example if we allowed a non-
5745                            // system update of the app to add a library, then uninstalling
5746                            // the update would make the library go away, and assumptions
5747                            // we made such as through app install filtering would now
5748                            // have allowed apps on the device which aren't compatible
5749                            // with it.  Better to just have the restriction here, be
5750                            // conservative, and create many fewer cases that can negatively
5751                            // impact the user experience.
5752                            final PackageSetting sysPs = mSettings
5753                                    .getDisabledSystemPkgLPr(pkg.packageName);
5754                            if (sysPs.pkg != null && sysPs.pkg.libraryNames != null) {
5755                                for (int j=0; j<sysPs.pkg.libraryNames.size(); j++) {
5756                                    if (name.equals(sysPs.pkg.libraryNames.get(j))) {
5757                                        allowed = true;
5758                                        allowed = true;
5759                                        break;
5760                                    }
5761                                }
5762                            }
5763                        } else {
5764                            allowed = true;
5765                        }
5766                        if (allowed) {
5767                            if (!mSharedLibraries.containsKey(name)) {
5768                                mSharedLibraries.put(name, new SharedLibraryEntry(null, pkg.packageName));
5769                            } else if (!name.equals(pkg.packageName)) {
5770                                Slog.w(TAG, "Package " + pkg.packageName + " library "
5771                                        + name + " already exists; skipping");
5772                            }
5773                        } else {
5774                            Slog.w(TAG, "Package " + pkg.packageName + " declares lib "
5775                                    + name + " that is not declared on system image; skipping");
5776                        }
5777                    }
5778                    if ((scanFlags&SCAN_BOOTING) == 0) {
5779                        // If we are not booting, we need to update any applications
5780                        // that are clients of our shared library.  If we are booting,
5781                        // this will all be done once the scan is complete.
5782                        clientLibPkgs = updateAllSharedLibrariesLPw(pkg);
5783                    }
5784                }
5785            }
5786        }
5787
5788        // We also need to dexopt any apps that are dependent on this library.  Note that
5789        // if these fail, we should abort the install since installing the library will
5790        // result in some apps being broken.
5791        if (clientLibPkgs != null) {
5792            if ((scanFlags & SCAN_NO_DEX) == 0) {
5793                for (int i = 0; i < clientLibPkgs.size(); i++) {
5794                    PackageParser.Package clientPkg = clientLibPkgs.get(i);
5795                    int result = mPackageDexOptimizer.performDexOpt(clientPkg,
5796                            null /* instruction sets */, forceDex,
5797                            (scanFlags & SCAN_DEFER_DEX) != 0, false);
5798                    if (result == PackageDexOptimizer.DEX_OPT_FAILED) {
5799                        throw new PackageManagerException(INSTALL_FAILED_DEXOPT,
5800                                "scanPackageLI failed to dexopt clientLibPkgs");
5801                    }
5802                }
5803            }
5804        }
5805
5806        // Request the ActivityManager to kill the process(only for existing packages)
5807        // so that we do not end up in a confused state while the user is still using the older
5808        // version of the application while the new one gets installed.
5809        if ((scanFlags & SCAN_REPLACING) != 0) {
5810            killApplication(pkg.applicationInfo.packageName,
5811                        pkg.applicationInfo.uid, "update pkg");
5812        }
5813
5814        // Also need to kill any apps that are dependent on the library.
5815        if (clientLibPkgs != null) {
5816            for (int i=0; i<clientLibPkgs.size(); i++) {
5817                PackageParser.Package clientPkg = clientLibPkgs.get(i);
5818                killApplication(clientPkg.applicationInfo.packageName,
5819                        clientPkg.applicationInfo.uid, "update lib");
5820            }
5821        }
5822
5823        // writer
5824        synchronized (mPackages) {
5825            // We don't expect installation to fail beyond this point
5826
5827            // Add the new setting to mSettings
5828            mSettings.insertPackageSettingLPw(pkgSetting, pkg);
5829            // Add the new setting to mPackages
5830            mPackages.put(pkg.applicationInfo.packageName, pkg);
5831            // Make sure we don't accidentally delete its data.
5832            final Iterator<PackageCleanItem> iter = mSettings.mPackagesToBeCleaned.iterator();
5833            while (iter.hasNext()) {
5834                PackageCleanItem item = iter.next();
5835                if (pkgName.equals(item.packageName)) {
5836                    iter.remove();
5837                }
5838            }
5839
5840            // Take care of first install / last update times.
5841            if (currentTime != 0) {
5842                if (pkgSetting.firstInstallTime == 0) {
5843                    pkgSetting.firstInstallTime = pkgSetting.lastUpdateTime = currentTime;
5844                } else if ((scanFlags&SCAN_UPDATE_TIME) != 0) {
5845                    pkgSetting.lastUpdateTime = currentTime;
5846                }
5847            } else if (pkgSetting.firstInstallTime == 0) {
5848                // We need *something*.  Take time time stamp of the file.
5849                pkgSetting.firstInstallTime = pkgSetting.lastUpdateTime = scanFileTime;
5850            } else if ((parseFlags&PackageParser.PARSE_IS_SYSTEM_DIR) != 0) {
5851                if (scanFileTime != pkgSetting.timeStamp) {
5852                    // A package on the system image has changed; consider this
5853                    // to be an update.
5854                    pkgSetting.lastUpdateTime = scanFileTime;
5855                }
5856            }
5857
5858            // Add the package's KeySets to the global KeySetManagerService
5859            KeySetManagerService ksms = mSettings.mKeySetManagerService;
5860            try {
5861                // Old KeySetData no longer valid.
5862                ksms.removeAppKeySetDataLPw(pkg.packageName);
5863                ksms.addSigningKeySetToPackageLPw(pkg.packageName, pkg.mSigningKeys);
5864                if (pkg.mKeySetMapping != null) {
5865                    for (Map.Entry<String, ArraySet<PublicKey>> entry :
5866                            pkg.mKeySetMapping.entrySet()) {
5867                        if (entry.getValue() != null) {
5868                            ksms.addDefinedKeySetToPackageLPw(pkg.packageName,
5869                                                          entry.getValue(), entry.getKey());
5870                        }
5871                    }
5872                    if (pkg.mUpgradeKeySets != null) {
5873                        for (String upgradeAlias : pkg.mUpgradeKeySets) {
5874                            ksms.addUpgradeKeySetToPackageLPw(pkg.packageName, upgradeAlias);
5875                        }
5876                    }
5877                }
5878            } catch (NullPointerException e) {
5879                Slog.e(TAG, "Could not add KeySet to " + pkg.packageName, e);
5880            } catch (IllegalArgumentException e) {
5881                Slog.e(TAG, "Could not add KeySet to malformed package" + pkg.packageName, e);
5882            }
5883
5884            int N = pkg.providers.size();
5885            StringBuilder r = null;
5886            int i;
5887            for (i=0; i<N; i++) {
5888                PackageParser.Provider p = pkg.providers.get(i);
5889                p.info.processName = fixProcessName(pkg.applicationInfo.processName,
5890                        p.info.processName, pkg.applicationInfo.uid);
5891                mProviders.addProvider(p);
5892                p.syncable = p.info.isSyncable;
5893                if (p.info.authority != null) {
5894                    String names[] = p.info.authority.split(";");
5895                    p.info.authority = null;
5896                    for (int j = 0; j < names.length; j++) {
5897                        if (j == 1 && p.syncable) {
5898                            // We only want the first authority for a provider to possibly be
5899                            // syncable, so if we already added this provider using a different
5900                            // authority clear the syncable flag. We copy the provider before
5901                            // changing it because the mProviders object contains a reference
5902                            // to a provider that we don't want to change.
5903                            // Only do this for the second authority since the resulting provider
5904                            // object can be the same for all future authorities for this provider.
5905                            p = new PackageParser.Provider(p);
5906                            p.syncable = false;
5907                        }
5908                        if (!mProvidersByAuthority.containsKey(names[j])) {
5909                            mProvidersByAuthority.put(names[j], p);
5910                            if (p.info.authority == null) {
5911                                p.info.authority = names[j];
5912                            } else {
5913                                p.info.authority = p.info.authority + ";" + names[j];
5914                            }
5915                            if (DEBUG_PACKAGE_SCANNING) {
5916                                if ((parseFlags & PackageParser.PARSE_CHATTY) != 0)
5917                                    Log.d(TAG, "Registered content provider: " + names[j]
5918                                            + ", className = " + p.info.name + ", isSyncable = "
5919                                            + p.info.isSyncable);
5920                            }
5921                        } else {
5922                            PackageParser.Provider other = mProvidersByAuthority.get(names[j]);
5923                            Slog.w(TAG, "Skipping provider name " + names[j] +
5924                                    " (in package " + pkg.applicationInfo.packageName +
5925                                    "): name already used by "
5926                                    + ((other != null && other.getComponentName() != null)
5927                                            ? other.getComponentName().getPackageName() : "?"));
5928                        }
5929                    }
5930                }
5931                if ((parseFlags&PackageParser.PARSE_CHATTY) != 0) {
5932                    if (r == null) {
5933                        r = new StringBuilder(256);
5934                    } else {
5935                        r.append(' ');
5936                    }
5937                    r.append(p.info.name);
5938                }
5939            }
5940            if (r != null) {
5941                if (DEBUG_PACKAGE_SCANNING) Log.d(TAG, "  Providers: " + r);
5942            }
5943
5944            N = pkg.services.size();
5945            r = null;
5946            for (i=0; i<N; i++) {
5947                PackageParser.Service s = pkg.services.get(i);
5948                s.info.processName = fixProcessName(pkg.applicationInfo.processName,
5949                        s.info.processName, pkg.applicationInfo.uid);
5950                mServices.addService(s);
5951                if ((parseFlags&PackageParser.PARSE_CHATTY) != 0) {
5952                    if (r == null) {
5953                        r = new StringBuilder(256);
5954                    } else {
5955                        r.append(' ');
5956                    }
5957                    r.append(s.info.name);
5958                }
5959            }
5960            if (r != null) {
5961                if (DEBUG_PACKAGE_SCANNING) Log.d(TAG, "  Services: " + r);
5962            }
5963
5964            N = pkg.receivers.size();
5965            r = null;
5966            for (i=0; i<N; i++) {
5967                PackageParser.Activity a = pkg.receivers.get(i);
5968                a.info.processName = fixProcessName(pkg.applicationInfo.processName,
5969                        a.info.processName, pkg.applicationInfo.uid);
5970                mReceivers.addActivity(a, "receiver");
5971                if ((parseFlags&PackageParser.PARSE_CHATTY) != 0) {
5972                    if (r == null) {
5973                        r = new StringBuilder(256);
5974                    } else {
5975                        r.append(' ');
5976                    }
5977                    r.append(a.info.name);
5978                }
5979            }
5980            if (r != null) {
5981                if (DEBUG_PACKAGE_SCANNING) Log.d(TAG, "  Receivers: " + r);
5982            }
5983
5984            N = pkg.activities.size();
5985            r = null;
5986            for (i=0; i<N; i++) {
5987                PackageParser.Activity a = pkg.activities.get(i);
5988                a.info.processName = fixProcessName(pkg.applicationInfo.processName,
5989                        a.info.processName, pkg.applicationInfo.uid);
5990                mActivities.addActivity(a, "activity");
5991                if ((parseFlags&PackageParser.PARSE_CHATTY) != 0) {
5992                    if (r == null) {
5993                        r = new StringBuilder(256);
5994                    } else {
5995                        r.append(' ');
5996                    }
5997                    r.append(a.info.name);
5998                }
5999            }
6000            if (r != null) {
6001                if (DEBUG_PACKAGE_SCANNING) Log.d(TAG, "  Activities: " + r);
6002            }
6003
6004            N = pkg.permissionGroups.size();
6005            r = null;
6006            for (i=0; i<N; i++) {
6007                PackageParser.PermissionGroup pg = pkg.permissionGroups.get(i);
6008                PackageParser.PermissionGroup cur = mPermissionGroups.get(pg.info.name);
6009                if (cur == null) {
6010                    mPermissionGroups.put(pg.info.name, pg);
6011                    if ((parseFlags&PackageParser.PARSE_CHATTY) != 0) {
6012                        if (r == null) {
6013                            r = new StringBuilder(256);
6014                        } else {
6015                            r.append(' ');
6016                        }
6017                        r.append(pg.info.name);
6018                    }
6019                } else {
6020                    Slog.w(TAG, "Permission group " + pg.info.name + " from package "
6021                            + pg.info.packageName + " ignored: original from "
6022                            + cur.info.packageName);
6023                    if ((parseFlags&PackageParser.PARSE_CHATTY) != 0) {
6024                        if (r == null) {
6025                            r = new StringBuilder(256);
6026                        } else {
6027                            r.append(' ');
6028                        }
6029                        r.append("DUP:");
6030                        r.append(pg.info.name);
6031                    }
6032                }
6033            }
6034            if (r != null) {
6035                if (DEBUG_PACKAGE_SCANNING) Log.d(TAG, "  Permission Groups: " + r);
6036            }
6037
6038            N = pkg.permissions.size();
6039            r = null;
6040            for (i=0; i<N; i++) {
6041                PackageParser.Permission p = pkg.permissions.get(i);
6042                ArrayMap<String, BasePermission> permissionMap =
6043                        p.tree ? mSettings.mPermissionTrees
6044                        : mSettings.mPermissions;
6045                p.group = mPermissionGroups.get(p.info.group);
6046                if (p.info.group == null || p.group != null) {
6047                    BasePermission bp = permissionMap.get(p.info.name);
6048
6049                    // Allow system apps to redefine non-system permissions
6050                    if (bp != null && !Objects.equals(bp.sourcePackage, p.info.packageName)) {
6051                        final boolean currentOwnerIsSystem = (bp.perm != null
6052                                && isSystemApp(bp.perm.owner));
6053                        if (isSystemApp(p.owner)) {
6054                            if (bp.type == BasePermission.TYPE_BUILTIN && bp.perm == null) {
6055                                // It's a built-in permission and no owner, take ownership now
6056                                bp.packageSetting = pkgSetting;
6057                                bp.perm = p;
6058                                bp.uid = pkg.applicationInfo.uid;
6059                                bp.sourcePackage = p.info.packageName;
6060                            } else if (!currentOwnerIsSystem) {
6061                                String msg = "New decl " + p.owner + " of permission  "
6062                                        + p.info.name + " is system; overriding " + bp.sourcePackage;
6063                                reportSettingsProblem(Log.WARN, msg);
6064                                bp = null;
6065                            }
6066                        }
6067                    }
6068
6069                    if (bp == null) {
6070                        bp = new BasePermission(p.info.name, p.info.packageName,
6071                                BasePermission.TYPE_NORMAL);
6072                        permissionMap.put(p.info.name, bp);
6073                    }
6074
6075                    if (bp.perm == null) {
6076                        if (bp.sourcePackage == null
6077                                || bp.sourcePackage.equals(p.info.packageName)) {
6078                            BasePermission tree = findPermissionTreeLP(p.info.name);
6079                            if (tree == null
6080                                    || tree.sourcePackage.equals(p.info.packageName)) {
6081                                bp.packageSetting = pkgSetting;
6082                                bp.perm = p;
6083                                bp.uid = pkg.applicationInfo.uid;
6084                                bp.sourcePackage = p.info.packageName;
6085                                if ((parseFlags&PackageParser.PARSE_CHATTY) != 0) {
6086                                    if (r == null) {
6087                                        r = new StringBuilder(256);
6088                                    } else {
6089                                        r.append(' ');
6090                                    }
6091                                    r.append(p.info.name);
6092                                }
6093                            } else {
6094                                Slog.w(TAG, "Permission " + p.info.name + " from package "
6095                                        + p.info.packageName + " ignored: base tree "
6096                                        + tree.name + " is from package "
6097                                        + tree.sourcePackage);
6098                            }
6099                        } else {
6100                            Slog.w(TAG, "Permission " + p.info.name + " from package "
6101                                    + p.info.packageName + " ignored: original from "
6102                                    + bp.sourcePackage);
6103                        }
6104                    } else if ((parseFlags&PackageParser.PARSE_CHATTY) != 0) {
6105                        if (r == null) {
6106                            r = new StringBuilder(256);
6107                        } else {
6108                            r.append(' ');
6109                        }
6110                        r.append("DUP:");
6111                        r.append(p.info.name);
6112                    }
6113                    if (bp.perm == p) {
6114                        bp.protectionLevel = p.info.protectionLevel;
6115                    }
6116                } else {
6117                    Slog.w(TAG, "Permission " + p.info.name + " from package "
6118                            + p.info.packageName + " ignored: no group "
6119                            + p.group);
6120                }
6121            }
6122            if (r != null) {
6123                if (DEBUG_PACKAGE_SCANNING) Log.d(TAG, "  Permissions: " + r);
6124            }
6125
6126            N = pkg.instrumentation.size();
6127            r = null;
6128            for (i=0; i<N; i++) {
6129                PackageParser.Instrumentation a = pkg.instrumentation.get(i);
6130                a.info.packageName = pkg.applicationInfo.packageName;
6131                a.info.sourceDir = pkg.applicationInfo.sourceDir;
6132                a.info.publicSourceDir = pkg.applicationInfo.publicSourceDir;
6133                a.info.splitSourceDirs = pkg.applicationInfo.splitSourceDirs;
6134                a.info.splitPublicSourceDirs = pkg.applicationInfo.splitPublicSourceDirs;
6135                a.info.dataDir = pkg.applicationInfo.dataDir;
6136
6137                // TODO: Update instrumentation.nativeLibraryDir as well ? Does it
6138                // need other information about the application, like the ABI and what not ?
6139                a.info.nativeLibraryDir = pkg.applicationInfo.nativeLibraryDir;
6140                mInstrumentation.put(a.getComponentName(), a);
6141                if ((parseFlags&PackageParser.PARSE_CHATTY) != 0) {
6142                    if (r == null) {
6143                        r = new StringBuilder(256);
6144                    } else {
6145                        r.append(' ');
6146                    }
6147                    r.append(a.info.name);
6148                }
6149            }
6150            if (r != null) {
6151                if (DEBUG_PACKAGE_SCANNING) Log.d(TAG, "  Instrumentation: " + r);
6152            }
6153
6154            if (pkg.protectedBroadcasts != null) {
6155                N = pkg.protectedBroadcasts.size();
6156                for (i=0; i<N; i++) {
6157                    mProtectedBroadcasts.add(pkg.protectedBroadcasts.get(i));
6158                }
6159            }
6160
6161            pkgSetting.setTimeStamp(scanFileTime);
6162
6163            // Create idmap files for pairs of (packages, overlay packages).
6164            // Note: "android", ie framework-res.apk, is handled by native layers.
6165            if (pkg.mOverlayTarget != null) {
6166                // This is an overlay package.
6167                if (pkg.mOverlayTarget != null && !pkg.mOverlayTarget.equals("android")) {
6168                    if (!mOverlays.containsKey(pkg.mOverlayTarget)) {
6169                        mOverlays.put(pkg.mOverlayTarget,
6170                                new ArrayMap<String, PackageParser.Package>());
6171                    }
6172                    ArrayMap<String, PackageParser.Package> map = mOverlays.get(pkg.mOverlayTarget);
6173                    map.put(pkg.packageName, pkg);
6174                    PackageParser.Package orig = mPackages.get(pkg.mOverlayTarget);
6175                    if (orig != null && !createIdmapForPackagePairLI(orig, pkg)) {
6176                        throw new PackageManagerException(INSTALL_FAILED_UPDATE_INCOMPATIBLE,
6177                                "scanPackageLI failed to createIdmap");
6178                    }
6179                }
6180            } else if (mOverlays.containsKey(pkg.packageName) &&
6181                    !pkg.packageName.equals("android")) {
6182                // This is a regular package, with one or more known overlay packages.
6183                createIdmapsForPackageLI(pkg);
6184            }
6185        }
6186
6187        return pkg;
6188    }
6189
6190    /**
6191     * Adjusts ABIs for a set of packages belonging to a shared user so that they all match.
6192     * i.e, so that all packages can be run inside a single process if required.
6193     *
6194     * Optionally, callers can pass in a parsed package via {@code newPackage} in which case
6195     * this function will either try and make the ABI for all packages in {@code packagesForUser}
6196     * match {@code scannedPackage} or will update the ABI of {@code scannedPackage} to match
6197     * the ABI selected for {@code packagesForUser}. This variant is used when installing or
6198     * updating a package that belongs to a shared user.
6199     *
6200     * NOTE: We currently only match for the primary CPU abi string. Matching the secondary
6201     * adds unnecessary complexity.
6202     */
6203    private void adjustCpuAbisForSharedUserLPw(Set<PackageSetting> packagesForUser,
6204            PackageParser.Package scannedPackage, boolean forceDexOpt, boolean deferDexOpt) {
6205        String requiredInstructionSet = null;
6206        if (scannedPackage != null && scannedPackage.applicationInfo.primaryCpuAbi != null) {
6207            requiredInstructionSet = VMRuntime.getInstructionSet(
6208                     scannedPackage.applicationInfo.primaryCpuAbi);
6209        }
6210
6211        PackageSetting requirer = null;
6212        for (PackageSetting ps : packagesForUser) {
6213            // If packagesForUser contains scannedPackage, we skip it. This will happen
6214            // when scannedPackage is an update of an existing package. Without this check,
6215            // we will never be able to change the ABI of any package belonging to a shared
6216            // user, even if it's compatible with other packages.
6217            if (scannedPackage == null || !scannedPackage.packageName.equals(ps.name)) {
6218                if (ps.primaryCpuAbiString == null) {
6219                    continue;
6220                }
6221
6222                final String instructionSet = VMRuntime.getInstructionSet(ps.primaryCpuAbiString);
6223                if (requiredInstructionSet != null && !instructionSet.equals(requiredInstructionSet)) {
6224                    // We have a mismatch between instruction sets (say arm vs arm64) warn about
6225                    // this but there's not much we can do.
6226                    String errorMessage = "Instruction set mismatch, "
6227                            + ((requirer == null) ? "[caller]" : requirer)
6228                            + " requires " + requiredInstructionSet + " whereas " + ps
6229                            + " requires " + instructionSet;
6230                    Slog.w(TAG, errorMessage);
6231                }
6232
6233                if (requiredInstructionSet == null) {
6234                    requiredInstructionSet = instructionSet;
6235                    requirer = ps;
6236                }
6237            }
6238        }
6239
6240        if (requiredInstructionSet != null) {
6241            String adjustedAbi;
6242            if (requirer != null) {
6243                // requirer != null implies that either scannedPackage was null or that scannedPackage
6244                // did not require an ABI, in which case we have to adjust scannedPackage to match
6245                // the ABI of the set (which is the same as requirer's ABI)
6246                adjustedAbi = requirer.primaryCpuAbiString;
6247                if (scannedPackage != null) {
6248                    scannedPackage.applicationInfo.primaryCpuAbi = adjustedAbi;
6249                }
6250            } else {
6251                // requirer == null implies that we're updating all ABIs in the set to
6252                // match scannedPackage.
6253                adjustedAbi =  scannedPackage.applicationInfo.primaryCpuAbi;
6254            }
6255
6256            for (PackageSetting ps : packagesForUser) {
6257                if (scannedPackage == null || !scannedPackage.packageName.equals(ps.name)) {
6258                    if (ps.primaryCpuAbiString != null) {
6259                        continue;
6260                    }
6261
6262                    ps.primaryCpuAbiString = adjustedAbi;
6263                    if (ps.pkg != null && ps.pkg.applicationInfo != null) {
6264                        ps.pkg.applicationInfo.primaryCpuAbi = adjustedAbi;
6265                        Slog.i(TAG, "Adjusting ABI for : " + ps.name + " to " + adjustedAbi);
6266
6267                        int result = mPackageDexOptimizer.performDexOpt(ps.pkg,
6268                                null /* instruction sets */, forceDexOpt, deferDexOpt, true);
6269                        if (result == PackageDexOptimizer.DEX_OPT_FAILED) {
6270                            ps.primaryCpuAbiString = null;
6271                            ps.pkg.applicationInfo.primaryCpuAbi = null;
6272                            return;
6273                        } else {
6274                            mInstaller.rmdex(ps.codePathString,
6275                                    getDexCodeInstructionSet(getPreferredInstructionSet()));
6276                        }
6277                    }
6278                }
6279            }
6280        }
6281    }
6282
6283    private void setUpCustomResolverActivity(PackageParser.Package pkg) {
6284        synchronized (mPackages) {
6285            mResolverReplaced = true;
6286            // Set up information for custom user intent resolution activity.
6287            mResolveActivity.applicationInfo = pkg.applicationInfo;
6288            mResolveActivity.name = mCustomResolverComponentName.getClassName();
6289            mResolveActivity.packageName = pkg.applicationInfo.packageName;
6290            mResolveActivity.processName = pkg.applicationInfo.packageName;
6291            mResolveActivity.launchMode = ActivityInfo.LAUNCH_MULTIPLE;
6292            mResolveActivity.flags = ActivityInfo.FLAG_EXCLUDE_FROM_RECENTS |
6293                    ActivityInfo.FLAG_FINISH_ON_CLOSE_SYSTEM_DIALOGS;
6294            mResolveActivity.theme = 0;
6295            mResolveActivity.exported = true;
6296            mResolveActivity.enabled = true;
6297            mResolveInfo.activityInfo = mResolveActivity;
6298            mResolveInfo.priority = 0;
6299            mResolveInfo.preferredOrder = 0;
6300            mResolveInfo.match = 0;
6301            mResolveComponentName = mCustomResolverComponentName;
6302            Slog.i(TAG, "Replacing default ResolverActivity with custom activity: " +
6303                    mResolveComponentName);
6304        }
6305    }
6306
6307    private static String calculateBundledApkRoot(final String codePathString) {
6308        final File codePath = new File(codePathString);
6309        final File codeRoot;
6310        if (FileUtils.contains(Environment.getRootDirectory(), codePath)) {
6311            codeRoot = Environment.getRootDirectory();
6312        } else if (FileUtils.contains(Environment.getOemDirectory(), codePath)) {
6313            codeRoot = Environment.getOemDirectory();
6314        } else if (FileUtils.contains(Environment.getVendorDirectory(), codePath)) {
6315            codeRoot = Environment.getVendorDirectory();
6316        } else {
6317            // Unrecognized code path; take its top real segment as the apk root:
6318            // e.g. /something/app/blah.apk => /something
6319            try {
6320                File f = codePath.getCanonicalFile();
6321                File parent = f.getParentFile();    // non-null because codePath is a file
6322                File tmp;
6323                while ((tmp = parent.getParentFile()) != null) {
6324                    f = parent;
6325                    parent = tmp;
6326                }
6327                codeRoot = f;
6328                Slog.w(TAG, "Unrecognized code path "
6329                        + codePath + " - using " + codeRoot);
6330            } catch (IOException e) {
6331                // Can't canonicalize the code path -- shenanigans?
6332                Slog.w(TAG, "Can't canonicalize code path " + codePath);
6333                return Environment.getRootDirectory().getPath();
6334            }
6335        }
6336        return codeRoot.getPath();
6337    }
6338
6339    /**
6340     * Derive and set the location of native libraries for the given package,
6341     * which varies depending on where and how the package was installed.
6342     */
6343    private void setNativeLibraryPaths(PackageParser.Package pkg) {
6344        final ApplicationInfo info = pkg.applicationInfo;
6345        final String codePath = pkg.codePath;
6346        final File codeFile = new File(codePath);
6347        final boolean bundledApp = info.isSystemApp() && !info.isUpdatedSystemApp();
6348        final boolean asecApp = info.isForwardLocked() || isExternal(info);
6349
6350        info.nativeLibraryRootDir = null;
6351        info.nativeLibraryRootRequiresIsa = false;
6352        info.nativeLibraryDir = null;
6353        info.secondaryNativeLibraryDir = null;
6354
6355        if (isApkFile(codeFile)) {
6356            // Monolithic install
6357            if (bundledApp) {
6358                // If "/system/lib64/apkname" exists, assume that is the per-package
6359                // native library directory to use; otherwise use "/system/lib/apkname".
6360                final String apkRoot = calculateBundledApkRoot(info.sourceDir);
6361                final boolean is64Bit = VMRuntime.is64BitInstructionSet(
6362                        getPrimaryInstructionSet(info));
6363
6364                // This is a bundled system app so choose the path based on the ABI.
6365                // if it's a 64 bit abi, use lib64 otherwise use lib32. Note that this
6366                // is just the default path.
6367                final String apkName = deriveCodePathName(codePath);
6368                final String libDir = is64Bit ? LIB64_DIR_NAME : LIB_DIR_NAME;
6369                info.nativeLibraryRootDir = Environment.buildPath(new File(apkRoot), libDir,
6370                        apkName).getAbsolutePath();
6371
6372                if (info.secondaryCpuAbi != null) {
6373                    final String secondaryLibDir = is64Bit ? LIB_DIR_NAME : LIB64_DIR_NAME;
6374                    info.secondaryNativeLibraryDir = Environment.buildPath(new File(apkRoot),
6375                            secondaryLibDir, apkName).getAbsolutePath();
6376                }
6377            } else if (asecApp) {
6378                info.nativeLibraryRootDir = new File(codeFile.getParentFile(), LIB_DIR_NAME)
6379                        .getAbsolutePath();
6380            } else {
6381                final String apkName = deriveCodePathName(codePath);
6382                info.nativeLibraryRootDir = new File(mAppLib32InstallDir, apkName)
6383                        .getAbsolutePath();
6384            }
6385
6386            info.nativeLibraryRootRequiresIsa = false;
6387            info.nativeLibraryDir = info.nativeLibraryRootDir;
6388        } else {
6389            // Cluster install
6390            info.nativeLibraryRootDir = new File(codeFile, LIB_DIR_NAME).getAbsolutePath();
6391            info.nativeLibraryRootRequiresIsa = true;
6392
6393            info.nativeLibraryDir = new File(info.nativeLibraryRootDir,
6394                    getPrimaryInstructionSet(info)).getAbsolutePath();
6395
6396            if (info.secondaryCpuAbi != null) {
6397                info.secondaryNativeLibraryDir = new File(info.nativeLibraryRootDir,
6398                        VMRuntime.getInstructionSet(info.secondaryCpuAbi)).getAbsolutePath();
6399            }
6400        }
6401    }
6402
6403    /**
6404     * Calculate the abis and roots for a bundled app. These can uniquely
6405     * be determined from the contents of the system partition, i.e whether
6406     * it contains 64 or 32 bit shared libraries etc. We do not validate any
6407     * of this information, and instead assume that the system was built
6408     * sensibly.
6409     */
6410    private void setBundledAppAbisAndRoots(PackageParser.Package pkg,
6411                                           PackageSetting pkgSetting) {
6412        final String apkName = deriveCodePathName(pkg.applicationInfo.getCodePath());
6413
6414        // If "/system/lib64/apkname" exists, assume that is the per-package
6415        // native library directory to use; otherwise use "/system/lib/apkname".
6416        final String apkRoot = calculateBundledApkRoot(pkg.applicationInfo.sourceDir);
6417        setBundledAppAbi(pkg, apkRoot, apkName);
6418        // pkgSetting might be null during rescan following uninstall of updates
6419        // to a bundled app, so accommodate that possibility.  The settings in
6420        // that case will be established later from the parsed package.
6421        //
6422        // If the settings aren't null, sync them up with what we've just derived.
6423        // note that apkRoot isn't stored in the package settings.
6424        if (pkgSetting != null) {
6425            pkgSetting.primaryCpuAbiString = pkg.applicationInfo.primaryCpuAbi;
6426            pkgSetting.secondaryCpuAbiString = pkg.applicationInfo.secondaryCpuAbi;
6427        }
6428    }
6429
6430    /**
6431     * Deduces the ABI of a bundled app and sets the relevant fields on the
6432     * parsed pkg object.
6433     *
6434     * @param apkRoot the root of the installed apk, something like {@code /system} or {@code /oem}
6435     *        under which system libraries are installed.
6436     * @param apkName the name of the installed package.
6437     */
6438    private static void setBundledAppAbi(PackageParser.Package pkg, String apkRoot, String apkName) {
6439        final File codeFile = new File(pkg.codePath);
6440
6441        final boolean has64BitLibs;
6442        final boolean has32BitLibs;
6443        if (isApkFile(codeFile)) {
6444            // Monolithic install
6445            has64BitLibs = (new File(apkRoot, new File(LIB64_DIR_NAME, apkName).getPath())).exists();
6446            has32BitLibs = (new File(apkRoot, new File(LIB_DIR_NAME, apkName).getPath())).exists();
6447        } else {
6448            // Cluster install
6449            final File rootDir = new File(codeFile, LIB_DIR_NAME);
6450            if (!ArrayUtils.isEmpty(Build.SUPPORTED_64_BIT_ABIS)
6451                    && !TextUtils.isEmpty(Build.SUPPORTED_64_BIT_ABIS[0])) {
6452                final String isa = VMRuntime.getInstructionSet(Build.SUPPORTED_64_BIT_ABIS[0]);
6453                has64BitLibs = (new File(rootDir, isa)).exists();
6454            } else {
6455                has64BitLibs = false;
6456            }
6457            if (!ArrayUtils.isEmpty(Build.SUPPORTED_32_BIT_ABIS)
6458                    && !TextUtils.isEmpty(Build.SUPPORTED_32_BIT_ABIS[0])) {
6459                final String isa = VMRuntime.getInstructionSet(Build.SUPPORTED_32_BIT_ABIS[0]);
6460                has32BitLibs = (new File(rootDir, isa)).exists();
6461            } else {
6462                has32BitLibs = false;
6463            }
6464        }
6465
6466        if (has64BitLibs && !has32BitLibs) {
6467            // The package has 64 bit libs, but not 32 bit libs. Its primary
6468            // ABI should be 64 bit. We can safely assume here that the bundled
6469            // native libraries correspond to the most preferred ABI in the list.
6470
6471            pkg.applicationInfo.primaryCpuAbi = Build.SUPPORTED_64_BIT_ABIS[0];
6472            pkg.applicationInfo.secondaryCpuAbi = null;
6473        } else if (has32BitLibs && !has64BitLibs) {
6474            // The package has 32 bit libs but not 64 bit libs. Its primary
6475            // ABI should be 32 bit.
6476
6477            pkg.applicationInfo.primaryCpuAbi = Build.SUPPORTED_32_BIT_ABIS[0];
6478            pkg.applicationInfo.secondaryCpuAbi = null;
6479        } else if (has32BitLibs && has64BitLibs) {
6480            // The application has both 64 and 32 bit bundled libraries. We check
6481            // here that the app declares multiArch support, and warn if it doesn't.
6482            //
6483            // We will be lenient here and record both ABIs. The primary will be the
6484            // ABI that's higher on the list, i.e, a device that's configured to prefer
6485            // 64 bit apps will see a 64 bit primary ABI,
6486
6487            if ((pkg.applicationInfo.flags & ApplicationInfo.FLAG_MULTIARCH) == 0) {
6488                Slog.e(TAG, "Package: " + pkg + " has multiple bundled libs, but is not multiarch.");
6489            }
6490
6491            if (VMRuntime.is64BitInstructionSet(getPreferredInstructionSet())) {
6492                pkg.applicationInfo.primaryCpuAbi = Build.SUPPORTED_64_BIT_ABIS[0];
6493                pkg.applicationInfo.secondaryCpuAbi = Build.SUPPORTED_32_BIT_ABIS[0];
6494            } else {
6495                pkg.applicationInfo.primaryCpuAbi = Build.SUPPORTED_32_BIT_ABIS[0];
6496                pkg.applicationInfo.secondaryCpuAbi = Build.SUPPORTED_64_BIT_ABIS[0];
6497            }
6498        } else {
6499            pkg.applicationInfo.primaryCpuAbi = null;
6500            pkg.applicationInfo.secondaryCpuAbi = null;
6501        }
6502    }
6503
6504    private void killApplication(String pkgName, int appId, String reason) {
6505        // Request the ActivityManager to kill the process(only for existing packages)
6506        // so that we do not end up in a confused state while the user is still using the older
6507        // version of the application while the new one gets installed.
6508        IActivityManager am = ActivityManagerNative.getDefault();
6509        if (am != null) {
6510            try {
6511                am.killApplicationWithAppId(pkgName, appId, reason);
6512            } catch (RemoteException e) {
6513            }
6514        }
6515    }
6516
6517    void removePackageLI(PackageSetting ps, boolean chatty) {
6518        if (DEBUG_INSTALL) {
6519            if (chatty)
6520                Log.d(TAG, "Removing package " + ps.name);
6521        }
6522
6523        // writer
6524        synchronized (mPackages) {
6525            mPackages.remove(ps.name);
6526            final PackageParser.Package pkg = ps.pkg;
6527            if (pkg != null) {
6528                cleanPackageDataStructuresLILPw(pkg, chatty);
6529            }
6530        }
6531    }
6532
6533    void removeInstalledPackageLI(PackageParser.Package pkg, boolean chatty) {
6534        if (DEBUG_INSTALL) {
6535            if (chatty)
6536                Log.d(TAG, "Removing package " + pkg.applicationInfo.packageName);
6537        }
6538
6539        // writer
6540        synchronized (mPackages) {
6541            mPackages.remove(pkg.applicationInfo.packageName);
6542            cleanPackageDataStructuresLILPw(pkg, chatty);
6543        }
6544    }
6545
6546    void cleanPackageDataStructuresLILPw(PackageParser.Package pkg, boolean chatty) {
6547        int N = pkg.providers.size();
6548        StringBuilder r = null;
6549        int i;
6550        for (i=0; i<N; i++) {
6551            PackageParser.Provider p = pkg.providers.get(i);
6552            mProviders.removeProvider(p);
6553            if (p.info.authority == null) {
6554
6555                /* There was another ContentProvider with this authority when
6556                 * this app was installed so this authority is null,
6557                 * Ignore it as we don't have to unregister the provider.
6558                 */
6559                continue;
6560            }
6561            String names[] = p.info.authority.split(";");
6562            for (int j = 0; j < names.length; j++) {
6563                if (mProvidersByAuthority.get(names[j]) == p) {
6564                    mProvidersByAuthority.remove(names[j]);
6565                    if (DEBUG_REMOVE) {
6566                        if (chatty)
6567                            Log.d(TAG, "Unregistered content provider: " + names[j]
6568                                    + ", className = " + p.info.name + ", isSyncable = "
6569                                    + p.info.isSyncable);
6570                    }
6571                }
6572            }
6573            if (DEBUG_REMOVE && chatty) {
6574                if (r == null) {
6575                    r = new StringBuilder(256);
6576                } else {
6577                    r.append(' ');
6578                }
6579                r.append(p.info.name);
6580            }
6581        }
6582        if (r != null) {
6583            if (DEBUG_REMOVE) Log.d(TAG, "  Providers: " + r);
6584        }
6585
6586        N = pkg.services.size();
6587        r = null;
6588        for (i=0; i<N; i++) {
6589            PackageParser.Service s = pkg.services.get(i);
6590            mServices.removeService(s);
6591            if (chatty) {
6592                if (r == null) {
6593                    r = new StringBuilder(256);
6594                } else {
6595                    r.append(' ');
6596                }
6597                r.append(s.info.name);
6598            }
6599        }
6600        if (r != null) {
6601            if (DEBUG_REMOVE) Log.d(TAG, "  Services: " + r);
6602        }
6603
6604        N = pkg.receivers.size();
6605        r = null;
6606        for (i=0; i<N; i++) {
6607            PackageParser.Activity a = pkg.receivers.get(i);
6608            mReceivers.removeActivity(a, "receiver");
6609            if (DEBUG_REMOVE && chatty) {
6610                if (r == null) {
6611                    r = new StringBuilder(256);
6612                } else {
6613                    r.append(' ');
6614                }
6615                r.append(a.info.name);
6616            }
6617        }
6618        if (r != null) {
6619            if (DEBUG_REMOVE) Log.d(TAG, "  Receivers: " + r);
6620        }
6621
6622        N = pkg.activities.size();
6623        r = null;
6624        for (i=0; i<N; i++) {
6625            PackageParser.Activity a = pkg.activities.get(i);
6626            mActivities.removeActivity(a, "activity");
6627            if (DEBUG_REMOVE && chatty) {
6628                if (r == null) {
6629                    r = new StringBuilder(256);
6630                } else {
6631                    r.append(' ');
6632                }
6633                r.append(a.info.name);
6634            }
6635        }
6636        if (r != null) {
6637            if (DEBUG_REMOVE) Log.d(TAG, "  Activities: " + r);
6638        }
6639
6640        N = pkg.permissions.size();
6641        r = null;
6642        for (i=0; i<N; i++) {
6643            PackageParser.Permission p = pkg.permissions.get(i);
6644            BasePermission bp = mSettings.mPermissions.get(p.info.name);
6645            if (bp == null) {
6646                bp = mSettings.mPermissionTrees.get(p.info.name);
6647            }
6648            if (bp != null && bp.perm == p) {
6649                bp.perm = null;
6650                if (DEBUG_REMOVE && chatty) {
6651                    if (r == null) {
6652                        r = new StringBuilder(256);
6653                    } else {
6654                        r.append(' ');
6655                    }
6656                    r.append(p.info.name);
6657                }
6658            }
6659            if ((p.info.protectionLevel&PermissionInfo.PROTECTION_FLAG_APPOP) != 0) {
6660                ArraySet<String> appOpPerms = mAppOpPermissionPackages.get(p.info.name);
6661                if (appOpPerms != null) {
6662                    appOpPerms.remove(pkg.packageName);
6663                }
6664            }
6665        }
6666        if (r != null) {
6667            if (DEBUG_REMOVE) Log.d(TAG, "  Permissions: " + r);
6668        }
6669
6670        N = pkg.requestedPermissions.size();
6671        r = null;
6672        for (i=0; i<N; i++) {
6673            String perm = pkg.requestedPermissions.get(i);
6674            BasePermission bp = mSettings.mPermissions.get(perm);
6675            if (bp != null && (bp.protectionLevel&PermissionInfo.PROTECTION_FLAG_APPOP) != 0) {
6676                ArraySet<String> appOpPerms = mAppOpPermissionPackages.get(perm);
6677                if (appOpPerms != null) {
6678                    appOpPerms.remove(pkg.packageName);
6679                    if (appOpPerms.isEmpty()) {
6680                        mAppOpPermissionPackages.remove(perm);
6681                    }
6682                }
6683            }
6684        }
6685        if (r != null) {
6686            if (DEBUG_REMOVE) Log.d(TAG, "  Permissions: " + r);
6687        }
6688
6689        N = pkg.instrumentation.size();
6690        r = null;
6691        for (i=0; i<N; i++) {
6692            PackageParser.Instrumentation a = pkg.instrumentation.get(i);
6693            mInstrumentation.remove(a.getComponentName());
6694            if (DEBUG_REMOVE && chatty) {
6695                if (r == null) {
6696                    r = new StringBuilder(256);
6697                } else {
6698                    r.append(' ');
6699                }
6700                r.append(a.info.name);
6701            }
6702        }
6703        if (r != null) {
6704            if (DEBUG_REMOVE) Log.d(TAG, "  Instrumentation: " + r);
6705        }
6706
6707        r = null;
6708        if ((pkg.applicationInfo.flags&ApplicationInfo.FLAG_SYSTEM) != 0) {
6709            // Only system apps can hold shared libraries.
6710            if (pkg.libraryNames != null) {
6711                for (i=0; i<pkg.libraryNames.size(); i++) {
6712                    String name = pkg.libraryNames.get(i);
6713                    SharedLibraryEntry cur = mSharedLibraries.get(name);
6714                    if (cur != null && cur.apk != null && cur.apk.equals(pkg.packageName)) {
6715                        mSharedLibraries.remove(name);
6716                        if (DEBUG_REMOVE && chatty) {
6717                            if (r == null) {
6718                                r = new StringBuilder(256);
6719                            } else {
6720                                r.append(' ');
6721                            }
6722                            r.append(name);
6723                        }
6724                    }
6725                }
6726            }
6727        }
6728        if (r != null) {
6729            if (DEBUG_REMOVE) Log.d(TAG, "  Libraries: " + r);
6730        }
6731    }
6732
6733    private static boolean hasPermission(PackageParser.Package pkgInfo, String perm) {
6734        for (int i=pkgInfo.permissions.size()-1; i>=0; i--) {
6735            if (pkgInfo.permissions.get(i).info.name.equals(perm)) {
6736                return true;
6737            }
6738        }
6739        return false;
6740    }
6741
6742    static final int UPDATE_PERMISSIONS_ALL = 1<<0;
6743    static final int UPDATE_PERMISSIONS_REPLACE_PKG = 1<<1;
6744    static final int UPDATE_PERMISSIONS_REPLACE_ALL = 1<<2;
6745
6746    private void updatePermissionsLPw(String changingPkg,
6747            PackageParser.Package pkgInfo, int flags) {
6748        // Make sure there are no dangling permission trees.
6749        Iterator<BasePermission> it = mSettings.mPermissionTrees.values().iterator();
6750        while (it.hasNext()) {
6751            final BasePermission bp = it.next();
6752            if (bp.packageSetting == null) {
6753                // We may not yet have parsed the package, so just see if
6754                // we still know about its settings.
6755                bp.packageSetting = mSettings.mPackages.get(bp.sourcePackage);
6756            }
6757            if (bp.packageSetting == null) {
6758                Slog.w(TAG, "Removing dangling permission tree: " + bp.name
6759                        + " from package " + bp.sourcePackage);
6760                it.remove();
6761            } else if (changingPkg != null && changingPkg.equals(bp.sourcePackage)) {
6762                if (pkgInfo == null || !hasPermission(pkgInfo, bp.name)) {
6763                    Slog.i(TAG, "Removing old permission tree: " + bp.name
6764                            + " from package " + bp.sourcePackage);
6765                    flags |= UPDATE_PERMISSIONS_ALL;
6766                    it.remove();
6767                }
6768            }
6769        }
6770
6771        // Make sure all dynamic permissions have been assigned to a package,
6772        // and make sure there are no dangling permissions.
6773        it = mSettings.mPermissions.values().iterator();
6774        while (it.hasNext()) {
6775            final BasePermission bp = it.next();
6776            if (bp.type == BasePermission.TYPE_DYNAMIC) {
6777                if (DEBUG_SETTINGS) Log.v(TAG, "Dynamic permission: name="
6778                        + bp.name + " pkg=" + bp.sourcePackage
6779                        + " info=" + bp.pendingInfo);
6780                if (bp.packageSetting == null && bp.pendingInfo != null) {
6781                    final BasePermission tree = findPermissionTreeLP(bp.name);
6782                    if (tree != null && tree.perm != null) {
6783                        bp.packageSetting = tree.packageSetting;
6784                        bp.perm = new PackageParser.Permission(tree.perm.owner,
6785                                new PermissionInfo(bp.pendingInfo));
6786                        bp.perm.info.packageName = tree.perm.info.packageName;
6787                        bp.perm.info.name = bp.name;
6788                        bp.uid = tree.uid;
6789                    }
6790                }
6791            }
6792            if (bp.packageSetting == null) {
6793                // We may not yet have parsed the package, so just see if
6794                // we still know about its settings.
6795                bp.packageSetting = mSettings.mPackages.get(bp.sourcePackage);
6796            }
6797            if (bp.packageSetting == null) {
6798                Slog.w(TAG, "Removing dangling permission: " + bp.name
6799                        + " from package " + bp.sourcePackage);
6800                it.remove();
6801            } else if (changingPkg != null && changingPkg.equals(bp.sourcePackage)) {
6802                if (pkgInfo == null || !hasPermission(pkgInfo, bp.name)) {
6803                    Slog.i(TAG, "Removing old permission: " + bp.name
6804                            + " from package " + bp.sourcePackage);
6805                    flags |= UPDATE_PERMISSIONS_ALL;
6806                    it.remove();
6807                }
6808            }
6809        }
6810
6811        // Now update the permissions for all packages, in particular
6812        // replace the granted permissions of the system packages.
6813        if ((flags&UPDATE_PERMISSIONS_ALL) != 0) {
6814            for (PackageParser.Package pkg : mPackages.values()) {
6815                if (pkg != pkgInfo) {
6816                    grantPermissionsLPw(pkg, (flags&UPDATE_PERMISSIONS_REPLACE_ALL) != 0,
6817                            changingPkg);
6818                }
6819            }
6820        }
6821
6822        if (pkgInfo != null) {
6823            grantPermissionsLPw(pkgInfo, (flags&UPDATE_PERMISSIONS_REPLACE_PKG) != 0, changingPkg);
6824        }
6825    }
6826
6827    private void grantPermissionsLPw(PackageParser.Package pkg, boolean replace,
6828            String packageOfInterest) {
6829        final PackageSetting ps = (PackageSetting) pkg.mExtras;
6830        if (ps == null) {
6831            return;
6832        }
6833        final GrantedPermissions gp = ps.sharedUser != null ? ps.sharedUser : ps;
6834        ArraySet<String> origPermissions = gp.grantedPermissions;
6835        boolean changedPermission = false;
6836
6837        if (replace) {
6838            ps.permissionsFixed = false;
6839            if (gp == ps) {
6840                origPermissions = new ArraySet<String>(gp.grantedPermissions);
6841                gp.grantedPermissions.clear();
6842                gp.gids = mGlobalGids;
6843            }
6844        }
6845
6846        if (gp.gids == null) {
6847            gp.gids = mGlobalGids;
6848        }
6849
6850        final int N = pkg.requestedPermissions.size();
6851        for (int i=0; i<N; i++) {
6852            final String name = pkg.requestedPermissions.get(i);
6853            final boolean required = pkg.requestedPermissionsRequired.get(i);
6854            final BasePermission bp = mSettings.mPermissions.get(name);
6855            if (DEBUG_INSTALL) {
6856                if (gp != ps) {
6857                    Log.i(TAG, "Package " + pkg.packageName + " checking " + name + ": " + bp);
6858                }
6859            }
6860
6861            if (bp == null || bp.packageSetting == null) {
6862                if (packageOfInterest == null || packageOfInterest.equals(pkg.packageName)) {
6863                    Slog.w(TAG, "Unknown permission " + name
6864                            + " in package " + pkg.packageName);
6865                }
6866                continue;
6867            }
6868
6869            final String perm = bp.name;
6870            boolean allowed;
6871            boolean allowedSig = false;
6872            if ((bp.protectionLevel&PermissionInfo.PROTECTION_FLAG_APPOP) != 0) {
6873                // Keep track of app op permissions.
6874                ArraySet<String> pkgs = mAppOpPermissionPackages.get(bp.name);
6875                if (pkgs == null) {
6876                    pkgs = new ArraySet<>();
6877                    mAppOpPermissionPackages.put(bp.name, pkgs);
6878                }
6879                pkgs.add(pkg.packageName);
6880            }
6881            final int level = bp.protectionLevel & PermissionInfo.PROTECTION_MASK_BASE;
6882            if (level == PermissionInfo.PROTECTION_NORMAL
6883                    || level == PermissionInfo.PROTECTION_DANGEROUS) {
6884                // We grant a normal or dangerous permission if any of the following
6885                // are true:
6886                // 1) The permission is required
6887                // 2) The permission is optional, but was granted in the past
6888                // 3) The permission is optional, but was requested by an
6889                //    app in /system (not /data)
6890                //
6891                // Otherwise, reject the permission.
6892                allowed = (required || origPermissions.contains(perm)
6893                        || (isSystemApp(ps) && !isUpdatedSystemApp(ps)));
6894            } else if (bp.packageSetting == null) {
6895                // This permission is invalid; skip it.
6896                allowed = false;
6897            } else if (level == PermissionInfo.PROTECTION_SIGNATURE) {
6898                allowed = grantSignaturePermission(perm, pkg, bp, origPermissions);
6899                if (allowed) {
6900                    allowedSig = true;
6901                }
6902            } else {
6903                allowed = false;
6904            }
6905            if (DEBUG_INSTALL) {
6906                if (gp != ps) {
6907                    Log.i(TAG, "Package " + pkg.packageName + " granting " + perm);
6908                }
6909            }
6910            if (allowed) {
6911                if (!isSystemApp(ps) && ps.permissionsFixed) {
6912                    // If this is an existing, non-system package, then
6913                    // we can't add any new permissions to it.
6914                    if (!allowedSig && !gp.grantedPermissions.contains(perm)) {
6915                        // Except...  if this is a permission that was added
6916                        // to the platform (note: need to only do this when
6917                        // updating the platform).
6918                        allowed = isNewPlatformPermissionForPackage(perm, pkg);
6919                    }
6920                }
6921                if (allowed) {
6922                    if (!gp.grantedPermissions.contains(perm)) {
6923                        changedPermission = true;
6924                        gp.grantedPermissions.add(perm);
6925                        gp.gids = appendInts(gp.gids, bp.gids);
6926                    } else if (!ps.haveGids) {
6927                        gp.gids = appendInts(gp.gids, bp.gids);
6928                    }
6929                } else {
6930                    if (packageOfInterest == null || packageOfInterest.equals(pkg.packageName)) {
6931                        Slog.w(TAG, "Not granting permission " + perm
6932                                + " to package " + pkg.packageName
6933                                + " because it was previously installed without");
6934                    }
6935                }
6936            } else {
6937                if (gp.grantedPermissions.remove(perm)) {
6938                    changedPermission = true;
6939                    gp.gids = removeInts(gp.gids, bp.gids);
6940                    Slog.i(TAG, "Un-granting permission " + perm
6941                            + " from package " + pkg.packageName
6942                            + " (protectionLevel=" + bp.protectionLevel
6943                            + " flags=0x" + Integer.toHexString(pkg.applicationInfo.flags)
6944                            + ")");
6945                } else if ((bp.protectionLevel&PermissionInfo.PROTECTION_FLAG_APPOP) == 0) {
6946                    // Don't print warning for app op permissions, since it is fine for them
6947                    // not to be granted, there is a UI for the user to decide.
6948                    if (packageOfInterest == null || packageOfInterest.equals(pkg.packageName)) {
6949                        Slog.w(TAG, "Not granting permission " + perm
6950                                + " to package " + pkg.packageName
6951                                + " (protectionLevel=" + bp.protectionLevel
6952                                + " flags=0x" + Integer.toHexString(pkg.applicationInfo.flags)
6953                                + ")");
6954                    }
6955                }
6956            }
6957        }
6958
6959        if ((changedPermission || replace) && !ps.permissionsFixed &&
6960                !isSystemApp(ps) || isUpdatedSystemApp(ps)){
6961            // This is the first that we have heard about this package, so the
6962            // permissions we have now selected are fixed until explicitly
6963            // changed.
6964            ps.permissionsFixed = true;
6965        }
6966        ps.haveGids = true;
6967    }
6968
6969    private boolean isNewPlatformPermissionForPackage(String perm, PackageParser.Package pkg) {
6970        boolean allowed = false;
6971        final int NP = PackageParser.NEW_PERMISSIONS.length;
6972        for (int ip=0; ip<NP; ip++) {
6973            final PackageParser.NewPermissionInfo npi
6974                    = PackageParser.NEW_PERMISSIONS[ip];
6975            if (npi.name.equals(perm)
6976                    && pkg.applicationInfo.targetSdkVersion < npi.sdkVersion) {
6977                allowed = true;
6978                Log.i(TAG, "Auto-granting " + perm + " to old pkg "
6979                        + pkg.packageName);
6980                break;
6981            }
6982        }
6983        return allowed;
6984    }
6985
6986    private boolean grantSignaturePermission(String perm, PackageParser.Package pkg,
6987                                          BasePermission bp, ArraySet<String> origPermissions) {
6988        boolean allowed;
6989        allowed = (compareSignatures(
6990                bp.packageSetting.signatures.mSignatures, pkg.mSignatures)
6991                        == PackageManager.SIGNATURE_MATCH)
6992                || (compareSignatures(mPlatformPackage.mSignatures, pkg.mSignatures)
6993                        == PackageManager.SIGNATURE_MATCH);
6994        if (!allowed && (bp.protectionLevel
6995                & PermissionInfo.PROTECTION_FLAG_SYSTEM) != 0) {
6996            if (isSystemApp(pkg)) {
6997                // For updated system applications, a system permission
6998                // is granted only if it had been defined by the original application.
6999                if (pkg.isUpdatedSystemApp()) {
7000                    final PackageSetting sysPs = mSettings
7001                            .getDisabledSystemPkgLPr(pkg.packageName);
7002                    final GrantedPermissions origGp = sysPs.sharedUser != null
7003                            ? sysPs.sharedUser : sysPs;
7004
7005                    if (origGp.grantedPermissions.contains(perm)) {
7006                        // If the original was granted this permission, we take
7007                        // that grant decision as read and propagate it to the
7008                        // update.
7009                        if (sysPs.isPrivileged()) {
7010                            allowed = true;
7011                        }
7012                    } else {
7013                        // The system apk may have been updated with an older
7014                        // version of the one on the data partition, but which
7015                        // granted a new system permission that it didn't have
7016                        // before.  In this case we do want to allow the app to
7017                        // now get the new permission if the ancestral apk is
7018                        // privileged to get it.
7019                        if (sysPs.pkg != null && sysPs.isPrivileged()) {
7020                            for (int j=0;
7021                                    j<sysPs.pkg.requestedPermissions.size(); j++) {
7022                                if (perm.equals(
7023                                        sysPs.pkg.requestedPermissions.get(j))) {
7024                                    allowed = true;
7025                                    break;
7026                                }
7027                            }
7028                        }
7029                    }
7030                } else {
7031                    allowed = isPrivilegedApp(pkg);
7032                }
7033            }
7034        }
7035        if (!allowed && (bp.protectionLevel
7036                & PermissionInfo.PROTECTION_FLAG_DEVELOPMENT) != 0) {
7037            // For development permissions, a development permission
7038            // is granted only if it was already granted.
7039            allowed = origPermissions.contains(perm);
7040        }
7041        return allowed;
7042    }
7043
7044    final class ActivityIntentResolver
7045            extends IntentResolver<PackageParser.ActivityIntentInfo, ResolveInfo> {
7046        public List<ResolveInfo> queryIntent(Intent intent, String resolvedType,
7047                boolean defaultOnly, int userId) {
7048            if (!sUserManager.exists(userId)) return null;
7049            mFlags = defaultOnly ? PackageManager.MATCH_DEFAULT_ONLY : 0;
7050            return super.queryIntent(intent, resolvedType, defaultOnly, userId);
7051        }
7052
7053        public List<ResolveInfo> queryIntent(Intent intent, String resolvedType, int flags,
7054                int userId) {
7055            if (!sUserManager.exists(userId)) return null;
7056            mFlags = flags;
7057            return super.queryIntent(intent, resolvedType,
7058                    (flags & PackageManager.MATCH_DEFAULT_ONLY) != 0, userId);
7059        }
7060
7061        public List<ResolveInfo> queryIntentForPackage(Intent intent, String resolvedType,
7062                int flags, ArrayList<PackageParser.Activity> packageActivities, int userId) {
7063            if (!sUserManager.exists(userId)) return null;
7064            if (packageActivities == null) {
7065                return null;
7066            }
7067            mFlags = flags;
7068            final boolean defaultOnly = (flags&PackageManager.MATCH_DEFAULT_ONLY) != 0;
7069            final int N = packageActivities.size();
7070            ArrayList<PackageParser.ActivityIntentInfo[]> listCut =
7071                new ArrayList<PackageParser.ActivityIntentInfo[]>(N);
7072
7073            ArrayList<PackageParser.ActivityIntentInfo> intentFilters;
7074            for (int i = 0; i < N; ++i) {
7075                intentFilters = packageActivities.get(i).intents;
7076                if (intentFilters != null && intentFilters.size() > 0) {
7077                    PackageParser.ActivityIntentInfo[] array =
7078                            new PackageParser.ActivityIntentInfo[intentFilters.size()];
7079                    intentFilters.toArray(array);
7080                    listCut.add(array);
7081                }
7082            }
7083            return super.queryIntentFromList(intent, resolvedType, defaultOnly, listCut, userId);
7084        }
7085
7086        public final void addActivity(PackageParser.Activity a, String type) {
7087            final boolean systemApp = a.info.applicationInfo.isSystemApp();
7088            mActivities.put(a.getComponentName(), a);
7089            if (DEBUG_SHOW_INFO)
7090                Log.v(
7091                TAG, "  " + type + " " +
7092                (a.info.nonLocalizedLabel != null ? a.info.nonLocalizedLabel : a.info.name) + ":");
7093            if (DEBUG_SHOW_INFO)
7094                Log.v(TAG, "    Class=" + a.info.name);
7095            final int NI = a.intents.size();
7096            for (int j=0; j<NI; j++) {
7097                PackageParser.ActivityIntentInfo intent = a.intents.get(j);
7098                if (!systemApp && intent.getPriority() > 0 && "activity".equals(type)) {
7099                    intent.setPriority(0);
7100                    Log.w(TAG, "Package " + a.info.applicationInfo.packageName + " has activity "
7101                            + a.className + " with priority > 0, forcing to 0");
7102                }
7103                if (DEBUG_SHOW_INFO) {
7104                    Log.v(TAG, "    IntentFilter:");
7105                    intent.dump(new LogPrinter(Log.VERBOSE, TAG), "      ");
7106                }
7107                if (!intent.debugCheck()) {
7108                    Log.w(TAG, "==> For Activity " + a.info.name);
7109                }
7110                addFilter(intent);
7111            }
7112        }
7113
7114        public final void removeActivity(PackageParser.Activity a, String type) {
7115            mActivities.remove(a.getComponentName());
7116            if (DEBUG_SHOW_INFO) {
7117                Log.v(TAG, "  " + type + " "
7118                        + (a.info.nonLocalizedLabel != null ? a.info.nonLocalizedLabel
7119                                : a.info.name) + ":");
7120                Log.v(TAG, "    Class=" + a.info.name);
7121            }
7122            final int NI = a.intents.size();
7123            for (int j=0; j<NI; j++) {
7124                PackageParser.ActivityIntentInfo intent = a.intents.get(j);
7125                if (DEBUG_SHOW_INFO) {
7126                    Log.v(TAG, "    IntentFilter:");
7127                    intent.dump(new LogPrinter(Log.VERBOSE, TAG), "      ");
7128                }
7129                removeFilter(intent);
7130            }
7131        }
7132
7133        @Override
7134        protected boolean allowFilterResult(
7135                PackageParser.ActivityIntentInfo filter, List<ResolveInfo> dest) {
7136            ActivityInfo filterAi = filter.activity.info;
7137            for (int i=dest.size()-1; i>=0; i--) {
7138                ActivityInfo destAi = dest.get(i).activityInfo;
7139                if (destAi.name == filterAi.name
7140                        && destAi.packageName == filterAi.packageName) {
7141                    return false;
7142                }
7143            }
7144            return true;
7145        }
7146
7147        @Override
7148        protected ActivityIntentInfo[] newArray(int size) {
7149            return new ActivityIntentInfo[size];
7150        }
7151
7152        @Override
7153        protected boolean isFilterStopped(PackageParser.ActivityIntentInfo filter, int userId) {
7154            if (!sUserManager.exists(userId)) return true;
7155            PackageParser.Package p = filter.activity.owner;
7156            if (p != null) {
7157                PackageSetting ps = (PackageSetting)p.mExtras;
7158                if (ps != null) {
7159                    // System apps are never considered stopped for purposes of
7160                    // filtering, because there may be no way for the user to
7161                    // actually re-launch them.
7162                    return (ps.pkgFlags&ApplicationInfo.FLAG_SYSTEM) == 0
7163                            && ps.getStopped(userId);
7164                }
7165            }
7166            return false;
7167        }
7168
7169        @Override
7170        protected boolean isPackageForFilter(String packageName,
7171                PackageParser.ActivityIntentInfo info) {
7172            return packageName.equals(info.activity.owner.packageName);
7173        }
7174
7175        @Override
7176        protected ResolveInfo newResult(PackageParser.ActivityIntentInfo info,
7177                int match, int userId) {
7178            if (!sUserManager.exists(userId)) return null;
7179            if (!mSettings.isEnabledLPr(info.activity.info, mFlags, userId)) {
7180                return null;
7181            }
7182            final PackageParser.Activity activity = info.activity;
7183            if (mSafeMode && (activity.info.applicationInfo.flags
7184                    &ApplicationInfo.FLAG_SYSTEM) == 0) {
7185                return null;
7186            }
7187            PackageSetting ps = (PackageSetting) activity.owner.mExtras;
7188            if (ps == null) {
7189                return null;
7190            }
7191            ActivityInfo ai = PackageParser.generateActivityInfo(activity, mFlags,
7192                    ps.readUserState(userId), userId);
7193            if (ai == null) {
7194                return null;
7195            }
7196            final ResolveInfo res = new ResolveInfo();
7197            res.activityInfo = ai;
7198            if ((mFlags&PackageManager.GET_RESOLVED_FILTER) != 0) {
7199                res.filter = info;
7200            }
7201            res.priority = info.getPriority();
7202            res.preferredOrder = activity.owner.mPreferredOrder;
7203            //System.out.println("Result: " + res.activityInfo.className +
7204            //                   " = " + res.priority);
7205            res.match = match;
7206            res.isDefault = info.hasDefault;
7207            res.labelRes = info.labelRes;
7208            res.nonLocalizedLabel = info.nonLocalizedLabel;
7209            if (userNeedsBadging(userId)) {
7210                res.noResourceId = true;
7211            } else {
7212                res.icon = info.icon;
7213            }
7214            res.system = res.activityInfo.applicationInfo.isSystemApp();
7215            return res;
7216        }
7217
7218        @Override
7219        protected void sortResults(List<ResolveInfo> results) {
7220            Collections.sort(results, mResolvePrioritySorter);
7221        }
7222
7223        @Override
7224        protected void dumpFilter(PrintWriter out, String prefix,
7225                PackageParser.ActivityIntentInfo filter) {
7226            out.print(prefix); out.print(
7227                    Integer.toHexString(System.identityHashCode(filter.activity)));
7228                    out.print(' ');
7229                    filter.activity.printComponentShortName(out);
7230                    out.print(" filter ");
7231                    out.println(Integer.toHexString(System.identityHashCode(filter)));
7232        }
7233
7234        @Override
7235        protected Object filterToLabel(PackageParser.ActivityIntentInfo filter) {
7236            return filter.activity;
7237        }
7238
7239        protected void dumpFilterLabel(PrintWriter out, String prefix, Object label, int count) {
7240            PackageParser.Activity activity = (PackageParser.Activity)label;
7241            out.print(prefix); out.print(
7242                    Integer.toHexString(System.identityHashCode(activity)));
7243                    out.print(' ');
7244                    activity.printComponentShortName(out);
7245            if (count > 1) {
7246                out.print(" ("); out.print(count); out.print(" filters)");
7247            }
7248            out.println();
7249        }
7250
7251//        List<ResolveInfo> filterEnabled(List<ResolveInfo> resolveInfoList) {
7252//            final Iterator<ResolveInfo> i = resolveInfoList.iterator();
7253//            final List<ResolveInfo> retList = Lists.newArrayList();
7254//            while (i.hasNext()) {
7255//                final ResolveInfo resolveInfo = i.next();
7256//                if (isEnabledLP(resolveInfo.activityInfo)) {
7257//                    retList.add(resolveInfo);
7258//                }
7259//            }
7260//            return retList;
7261//        }
7262
7263        // Keys are String (activity class name), values are Activity.
7264        private final ArrayMap<ComponentName, PackageParser.Activity> mActivities
7265                = new ArrayMap<ComponentName, PackageParser.Activity>();
7266        private int mFlags;
7267    }
7268
7269    private final class ServiceIntentResolver
7270            extends IntentResolver<PackageParser.ServiceIntentInfo, ResolveInfo> {
7271        public List<ResolveInfo> queryIntent(Intent intent, String resolvedType,
7272                boolean defaultOnly, int userId) {
7273            mFlags = defaultOnly ? PackageManager.MATCH_DEFAULT_ONLY : 0;
7274            return super.queryIntent(intent, resolvedType, defaultOnly, userId);
7275        }
7276
7277        public List<ResolveInfo> queryIntent(Intent intent, String resolvedType, int flags,
7278                int userId) {
7279            if (!sUserManager.exists(userId)) return null;
7280            mFlags = flags;
7281            return super.queryIntent(intent, resolvedType,
7282                    (flags & PackageManager.MATCH_DEFAULT_ONLY) != 0, userId);
7283        }
7284
7285        public List<ResolveInfo> queryIntentForPackage(Intent intent, String resolvedType,
7286                int flags, ArrayList<PackageParser.Service> packageServices, int userId) {
7287            if (!sUserManager.exists(userId)) return null;
7288            if (packageServices == null) {
7289                return null;
7290            }
7291            mFlags = flags;
7292            final boolean defaultOnly = (flags&PackageManager.MATCH_DEFAULT_ONLY) != 0;
7293            final int N = packageServices.size();
7294            ArrayList<PackageParser.ServiceIntentInfo[]> listCut =
7295                new ArrayList<PackageParser.ServiceIntentInfo[]>(N);
7296
7297            ArrayList<PackageParser.ServiceIntentInfo> intentFilters;
7298            for (int i = 0; i < N; ++i) {
7299                intentFilters = packageServices.get(i).intents;
7300                if (intentFilters != null && intentFilters.size() > 0) {
7301                    PackageParser.ServiceIntentInfo[] array =
7302                            new PackageParser.ServiceIntentInfo[intentFilters.size()];
7303                    intentFilters.toArray(array);
7304                    listCut.add(array);
7305                }
7306            }
7307            return super.queryIntentFromList(intent, resolvedType, defaultOnly, listCut, userId);
7308        }
7309
7310        public final void addService(PackageParser.Service s) {
7311            mServices.put(s.getComponentName(), s);
7312            if (DEBUG_SHOW_INFO) {
7313                Log.v(TAG, "  "
7314                        + (s.info.nonLocalizedLabel != null
7315                        ? s.info.nonLocalizedLabel : s.info.name) + ":");
7316                Log.v(TAG, "    Class=" + s.info.name);
7317            }
7318            final int NI = s.intents.size();
7319            int j;
7320            for (j=0; j<NI; j++) {
7321                PackageParser.ServiceIntentInfo intent = s.intents.get(j);
7322                if (DEBUG_SHOW_INFO) {
7323                    Log.v(TAG, "    IntentFilter:");
7324                    intent.dump(new LogPrinter(Log.VERBOSE, TAG), "      ");
7325                }
7326                if (!intent.debugCheck()) {
7327                    Log.w(TAG, "==> For Service " + s.info.name);
7328                }
7329                addFilter(intent);
7330            }
7331        }
7332
7333        public final void removeService(PackageParser.Service s) {
7334            mServices.remove(s.getComponentName());
7335            if (DEBUG_SHOW_INFO) {
7336                Log.v(TAG, "  " + (s.info.nonLocalizedLabel != null
7337                        ? s.info.nonLocalizedLabel : s.info.name) + ":");
7338                Log.v(TAG, "    Class=" + s.info.name);
7339            }
7340            final int NI = s.intents.size();
7341            int j;
7342            for (j=0; j<NI; j++) {
7343                PackageParser.ServiceIntentInfo intent = s.intents.get(j);
7344                if (DEBUG_SHOW_INFO) {
7345                    Log.v(TAG, "    IntentFilter:");
7346                    intent.dump(new LogPrinter(Log.VERBOSE, TAG), "      ");
7347                }
7348                removeFilter(intent);
7349            }
7350        }
7351
7352        @Override
7353        protected boolean allowFilterResult(
7354                PackageParser.ServiceIntentInfo filter, List<ResolveInfo> dest) {
7355            ServiceInfo filterSi = filter.service.info;
7356            for (int i=dest.size()-1; i>=0; i--) {
7357                ServiceInfo destAi = dest.get(i).serviceInfo;
7358                if (destAi.name == filterSi.name
7359                        && destAi.packageName == filterSi.packageName) {
7360                    return false;
7361                }
7362            }
7363            return true;
7364        }
7365
7366        @Override
7367        protected PackageParser.ServiceIntentInfo[] newArray(int size) {
7368            return new PackageParser.ServiceIntentInfo[size];
7369        }
7370
7371        @Override
7372        protected boolean isFilterStopped(PackageParser.ServiceIntentInfo filter, int userId) {
7373            if (!sUserManager.exists(userId)) return true;
7374            PackageParser.Package p = filter.service.owner;
7375            if (p != null) {
7376                PackageSetting ps = (PackageSetting)p.mExtras;
7377                if (ps != null) {
7378                    // System apps are never considered stopped for purposes of
7379                    // filtering, because there may be no way for the user to
7380                    // actually re-launch them.
7381                    return (ps.pkgFlags & ApplicationInfo.FLAG_SYSTEM) == 0
7382                            && ps.getStopped(userId);
7383                }
7384            }
7385            return false;
7386        }
7387
7388        @Override
7389        protected boolean isPackageForFilter(String packageName,
7390                PackageParser.ServiceIntentInfo info) {
7391            return packageName.equals(info.service.owner.packageName);
7392        }
7393
7394        @Override
7395        protected ResolveInfo newResult(PackageParser.ServiceIntentInfo filter,
7396                int match, int userId) {
7397            if (!sUserManager.exists(userId)) return null;
7398            final PackageParser.ServiceIntentInfo info = (PackageParser.ServiceIntentInfo)filter;
7399            if (!mSettings.isEnabledLPr(info.service.info, mFlags, userId)) {
7400                return null;
7401            }
7402            final PackageParser.Service service = info.service;
7403            if (mSafeMode && (service.info.applicationInfo.flags
7404                    &ApplicationInfo.FLAG_SYSTEM) == 0) {
7405                return null;
7406            }
7407            PackageSetting ps = (PackageSetting) service.owner.mExtras;
7408            if (ps == null) {
7409                return null;
7410            }
7411            ServiceInfo si = PackageParser.generateServiceInfo(service, mFlags,
7412                    ps.readUserState(userId), userId);
7413            if (si == null) {
7414                return null;
7415            }
7416            final ResolveInfo res = new ResolveInfo();
7417            res.serviceInfo = si;
7418            if ((mFlags&PackageManager.GET_RESOLVED_FILTER) != 0) {
7419                res.filter = filter;
7420            }
7421            res.priority = info.getPriority();
7422            res.preferredOrder = service.owner.mPreferredOrder;
7423            //System.out.println("Result: " + res.activityInfo.className +
7424            //                   " = " + res.priority);
7425            res.match = match;
7426            res.isDefault = info.hasDefault;
7427            res.labelRes = info.labelRes;
7428            res.nonLocalizedLabel = info.nonLocalizedLabel;
7429            res.icon = info.icon;
7430            res.system = res.serviceInfo.applicationInfo.isSystemApp();
7431            return res;
7432        }
7433
7434        @Override
7435        protected void sortResults(List<ResolveInfo> results) {
7436            Collections.sort(results, mResolvePrioritySorter);
7437        }
7438
7439        @Override
7440        protected void dumpFilter(PrintWriter out, String prefix,
7441                PackageParser.ServiceIntentInfo filter) {
7442            out.print(prefix); out.print(
7443                    Integer.toHexString(System.identityHashCode(filter.service)));
7444                    out.print(' ');
7445                    filter.service.printComponentShortName(out);
7446                    out.print(" filter ");
7447                    out.println(Integer.toHexString(System.identityHashCode(filter)));
7448        }
7449
7450        @Override
7451        protected Object filterToLabel(PackageParser.ServiceIntentInfo filter) {
7452            return filter.service;
7453        }
7454
7455        protected void dumpFilterLabel(PrintWriter out, String prefix, Object label, int count) {
7456            PackageParser.Service service = (PackageParser.Service)label;
7457            out.print(prefix); out.print(
7458                    Integer.toHexString(System.identityHashCode(service)));
7459                    out.print(' ');
7460                    service.printComponentShortName(out);
7461            if (count > 1) {
7462                out.print(" ("); out.print(count); out.print(" filters)");
7463            }
7464            out.println();
7465        }
7466
7467//        List<ResolveInfo> filterEnabled(List<ResolveInfo> resolveInfoList) {
7468//            final Iterator<ResolveInfo> i = resolveInfoList.iterator();
7469//            final List<ResolveInfo> retList = Lists.newArrayList();
7470//            while (i.hasNext()) {
7471//                final ResolveInfo resolveInfo = (ResolveInfo) i;
7472//                if (isEnabledLP(resolveInfo.serviceInfo)) {
7473//                    retList.add(resolveInfo);
7474//                }
7475//            }
7476//            return retList;
7477//        }
7478
7479        // Keys are String (activity class name), values are Activity.
7480        private final ArrayMap<ComponentName, PackageParser.Service> mServices
7481                = new ArrayMap<ComponentName, PackageParser.Service>();
7482        private int mFlags;
7483    };
7484
7485    private final class ProviderIntentResolver
7486            extends IntentResolver<PackageParser.ProviderIntentInfo, ResolveInfo> {
7487        public List<ResolveInfo> queryIntent(Intent intent, String resolvedType,
7488                boolean defaultOnly, int userId) {
7489            mFlags = defaultOnly ? PackageManager.MATCH_DEFAULT_ONLY : 0;
7490            return super.queryIntent(intent, resolvedType, defaultOnly, userId);
7491        }
7492
7493        public List<ResolveInfo> queryIntent(Intent intent, String resolvedType, int flags,
7494                int userId) {
7495            if (!sUserManager.exists(userId))
7496                return null;
7497            mFlags = flags;
7498            return super.queryIntent(intent, resolvedType,
7499                    (flags & PackageManager.MATCH_DEFAULT_ONLY) != 0, userId);
7500        }
7501
7502        public List<ResolveInfo> queryIntentForPackage(Intent intent, String resolvedType,
7503                int flags, ArrayList<PackageParser.Provider> packageProviders, int userId) {
7504            if (!sUserManager.exists(userId))
7505                return null;
7506            if (packageProviders == null) {
7507                return null;
7508            }
7509            mFlags = flags;
7510            final boolean defaultOnly = (flags & PackageManager.MATCH_DEFAULT_ONLY) != 0;
7511            final int N = packageProviders.size();
7512            ArrayList<PackageParser.ProviderIntentInfo[]> listCut =
7513                    new ArrayList<PackageParser.ProviderIntentInfo[]>(N);
7514
7515            ArrayList<PackageParser.ProviderIntentInfo> intentFilters;
7516            for (int i = 0; i < N; ++i) {
7517                intentFilters = packageProviders.get(i).intents;
7518                if (intentFilters != null && intentFilters.size() > 0) {
7519                    PackageParser.ProviderIntentInfo[] array =
7520                            new PackageParser.ProviderIntentInfo[intentFilters.size()];
7521                    intentFilters.toArray(array);
7522                    listCut.add(array);
7523                }
7524            }
7525            return super.queryIntentFromList(intent, resolvedType, defaultOnly, listCut, userId);
7526        }
7527
7528        public final void addProvider(PackageParser.Provider p) {
7529            if (mProviders.containsKey(p.getComponentName())) {
7530                Slog.w(TAG, "Provider " + p.getComponentName() + " already defined; ignoring");
7531                return;
7532            }
7533
7534            mProviders.put(p.getComponentName(), p);
7535            if (DEBUG_SHOW_INFO) {
7536                Log.v(TAG, "  "
7537                        + (p.info.nonLocalizedLabel != null
7538                                ? p.info.nonLocalizedLabel : p.info.name) + ":");
7539                Log.v(TAG, "    Class=" + p.info.name);
7540            }
7541            final int NI = p.intents.size();
7542            int j;
7543            for (j = 0; j < NI; j++) {
7544                PackageParser.ProviderIntentInfo intent = p.intents.get(j);
7545                if (DEBUG_SHOW_INFO) {
7546                    Log.v(TAG, "    IntentFilter:");
7547                    intent.dump(new LogPrinter(Log.VERBOSE, TAG), "      ");
7548                }
7549                if (!intent.debugCheck()) {
7550                    Log.w(TAG, "==> For Provider " + p.info.name);
7551                }
7552                addFilter(intent);
7553            }
7554        }
7555
7556        public final void removeProvider(PackageParser.Provider p) {
7557            mProviders.remove(p.getComponentName());
7558            if (DEBUG_SHOW_INFO) {
7559                Log.v(TAG, "  " + (p.info.nonLocalizedLabel != null
7560                        ? p.info.nonLocalizedLabel : p.info.name) + ":");
7561                Log.v(TAG, "    Class=" + p.info.name);
7562            }
7563            final int NI = p.intents.size();
7564            int j;
7565            for (j = 0; j < NI; j++) {
7566                PackageParser.ProviderIntentInfo intent = p.intents.get(j);
7567                if (DEBUG_SHOW_INFO) {
7568                    Log.v(TAG, "    IntentFilter:");
7569                    intent.dump(new LogPrinter(Log.VERBOSE, TAG), "      ");
7570                }
7571                removeFilter(intent);
7572            }
7573        }
7574
7575        @Override
7576        protected boolean allowFilterResult(
7577                PackageParser.ProviderIntentInfo filter, List<ResolveInfo> dest) {
7578            ProviderInfo filterPi = filter.provider.info;
7579            for (int i = dest.size() - 1; i >= 0; i--) {
7580                ProviderInfo destPi = dest.get(i).providerInfo;
7581                if (destPi.name == filterPi.name
7582                        && destPi.packageName == filterPi.packageName) {
7583                    return false;
7584                }
7585            }
7586            return true;
7587        }
7588
7589        @Override
7590        protected PackageParser.ProviderIntentInfo[] newArray(int size) {
7591            return new PackageParser.ProviderIntentInfo[size];
7592        }
7593
7594        @Override
7595        protected boolean isFilterStopped(PackageParser.ProviderIntentInfo filter, int userId) {
7596            if (!sUserManager.exists(userId))
7597                return true;
7598            PackageParser.Package p = filter.provider.owner;
7599            if (p != null) {
7600                PackageSetting ps = (PackageSetting) p.mExtras;
7601                if (ps != null) {
7602                    // System apps are never considered stopped for purposes of
7603                    // filtering, because there may be no way for the user to
7604                    // actually re-launch them.
7605                    return (ps.pkgFlags & ApplicationInfo.FLAG_SYSTEM) == 0
7606                            && ps.getStopped(userId);
7607                }
7608            }
7609            return false;
7610        }
7611
7612        @Override
7613        protected boolean isPackageForFilter(String packageName,
7614                PackageParser.ProviderIntentInfo info) {
7615            return packageName.equals(info.provider.owner.packageName);
7616        }
7617
7618        @Override
7619        protected ResolveInfo newResult(PackageParser.ProviderIntentInfo filter,
7620                int match, int userId) {
7621            if (!sUserManager.exists(userId))
7622                return null;
7623            final PackageParser.ProviderIntentInfo info = filter;
7624            if (!mSettings.isEnabledLPr(info.provider.info, mFlags, userId)) {
7625                return null;
7626            }
7627            final PackageParser.Provider provider = info.provider;
7628            if (mSafeMode && (provider.info.applicationInfo.flags
7629                    & ApplicationInfo.FLAG_SYSTEM) == 0) {
7630                return null;
7631            }
7632            PackageSetting ps = (PackageSetting) provider.owner.mExtras;
7633            if (ps == null) {
7634                return null;
7635            }
7636            ProviderInfo pi = PackageParser.generateProviderInfo(provider, mFlags,
7637                    ps.readUserState(userId), userId);
7638            if (pi == null) {
7639                return null;
7640            }
7641            final ResolveInfo res = new ResolveInfo();
7642            res.providerInfo = pi;
7643            if ((mFlags & PackageManager.GET_RESOLVED_FILTER) != 0) {
7644                res.filter = filter;
7645            }
7646            res.priority = info.getPriority();
7647            res.preferredOrder = provider.owner.mPreferredOrder;
7648            res.match = match;
7649            res.isDefault = info.hasDefault;
7650            res.labelRes = info.labelRes;
7651            res.nonLocalizedLabel = info.nonLocalizedLabel;
7652            res.icon = info.icon;
7653            res.system = res.providerInfo.applicationInfo.isSystemApp();
7654            return res;
7655        }
7656
7657        @Override
7658        protected void sortResults(List<ResolveInfo> results) {
7659            Collections.sort(results, mResolvePrioritySorter);
7660        }
7661
7662        @Override
7663        protected void dumpFilter(PrintWriter out, String prefix,
7664                PackageParser.ProviderIntentInfo filter) {
7665            out.print(prefix);
7666            out.print(
7667                    Integer.toHexString(System.identityHashCode(filter.provider)));
7668            out.print(' ');
7669            filter.provider.printComponentShortName(out);
7670            out.print(" filter ");
7671            out.println(Integer.toHexString(System.identityHashCode(filter)));
7672        }
7673
7674        @Override
7675        protected Object filterToLabel(PackageParser.ProviderIntentInfo filter) {
7676            return filter.provider;
7677        }
7678
7679        protected void dumpFilterLabel(PrintWriter out, String prefix, Object label, int count) {
7680            PackageParser.Provider provider = (PackageParser.Provider)label;
7681            out.print(prefix); out.print(
7682                    Integer.toHexString(System.identityHashCode(provider)));
7683                    out.print(' ');
7684                    provider.printComponentShortName(out);
7685            if (count > 1) {
7686                out.print(" ("); out.print(count); out.print(" filters)");
7687            }
7688            out.println();
7689        }
7690
7691        private final ArrayMap<ComponentName, PackageParser.Provider> mProviders
7692                = new ArrayMap<ComponentName, PackageParser.Provider>();
7693        private int mFlags;
7694    };
7695
7696    private static final Comparator<ResolveInfo> mResolvePrioritySorter =
7697            new Comparator<ResolveInfo>() {
7698        public int compare(ResolveInfo r1, ResolveInfo r2) {
7699            int v1 = r1.priority;
7700            int v2 = r2.priority;
7701            //System.out.println("Comparing: q1=" + q1 + " q2=" + q2);
7702            if (v1 != v2) {
7703                return (v1 > v2) ? -1 : 1;
7704            }
7705            v1 = r1.preferredOrder;
7706            v2 = r2.preferredOrder;
7707            if (v1 != v2) {
7708                return (v1 > v2) ? -1 : 1;
7709            }
7710            if (r1.isDefault != r2.isDefault) {
7711                return r1.isDefault ? -1 : 1;
7712            }
7713            v1 = r1.match;
7714            v2 = r2.match;
7715            //System.out.println("Comparing: m1=" + m1 + " m2=" + m2);
7716            if (v1 != v2) {
7717                return (v1 > v2) ? -1 : 1;
7718            }
7719            if (r1.system != r2.system) {
7720                return r1.system ? -1 : 1;
7721            }
7722            return 0;
7723        }
7724    };
7725
7726    private static final Comparator<ProviderInfo> mProviderInitOrderSorter =
7727            new Comparator<ProviderInfo>() {
7728        public int compare(ProviderInfo p1, ProviderInfo p2) {
7729            final int v1 = p1.initOrder;
7730            final int v2 = p2.initOrder;
7731            return (v1 > v2) ? -1 : ((v1 < v2) ? 1 : 0);
7732        }
7733    };
7734
7735    static final void sendPackageBroadcast(String action, String pkg,
7736            Bundle extras, String targetPkg, IIntentReceiver finishedReceiver,
7737            int[] userIds) {
7738        IActivityManager am = ActivityManagerNative.getDefault();
7739        if (am != null) {
7740            try {
7741                if (userIds == null) {
7742                    userIds = am.getRunningUserIds();
7743                }
7744                for (int id : userIds) {
7745                    final Intent intent = new Intent(action,
7746                            pkg != null ? Uri.fromParts("package", pkg, null) : null);
7747                    if (extras != null) {
7748                        intent.putExtras(extras);
7749                    }
7750                    if (targetPkg != null) {
7751                        intent.setPackage(targetPkg);
7752                    }
7753                    // Modify the UID when posting to other users
7754                    int uid = intent.getIntExtra(Intent.EXTRA_UID, -1);
7755                    if (uid > 0 && UserHandle.getUserId(uid) != id) {
7756                        uid = UserHandle.getUid(id, UserHandle.getAppId(uid));
7757                        intent.putExtra(Intent.EXTRA_UID, uid);
7758                    }
7759                    intent.putExtra(Intent.EXTRA_USER_HANDLE, id);
7760                    intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT);
7761                    if (DEBUG_BROADCASTS) {
7762                        RuntimeException here = new RuntimeException("here");
7763                        here.fillInStackTrace();
7764                        Slog.d(TAG, "Sending to user " + id + ": "
7765                                + intent.toShortString(false, true, false, false)
7766                                + " " + intent.getExtras(), here);
7767                    }
7768                    am.broadcastIntent(null, intent, null, finishedReceiver,
7769                            0, null, null, null, android.app.AppOpsManager.OP_NONE,
7770                            finishedReceiver != null, false, id);
7771                }
7772            } catch (RemoteException ex) {
7773            }
7774        }
7775    }
7776
7777    /**
7778     * Check if the external storage media is available. This is true if there
7779     * is a mounted external storage medium or if the external storage is
7780     * emulated.
7781     */
7782    private boolean isExternalMediaAvailable() {
7783        return mMediaMounted || Environment.isExternalStorageEmulated();
7784    }
7785
7786    @Override
7787    public PackageCleanItem nextPackageToClean(PackageCleanItem lastPackage) {
7788        // writer
7789        synchronized (mPackages) {
7790            if (!isExternalMediaAvailable()) {
7791                // If the external storage is no longer mounted at this point,
7792                // the caller may not have been able to delete all of this
7793                // packages files and can not delete any more.  Bail.
7794                return null;
7795            }
7796            final ArrayList<PackageCleanItem> pkgs = mSettings.mPackagesToBeCleaned;
7797            if (lastPackage != null) {
7798                pkgs.remove(lastPackage);
7799            }
7800            if (pkgs.size() > 0) {
7801                return pkgs.get(0);
7802            }
7803        }
7804        return null;
7805    }
7806
7807    void schedulePackageCleaning(String packageName, int userId, boolean andCode) {
7808        final Message msg = mHandler.obtainMessage(START_CLEANING_PACKAGE,
7809                userId, andCode ? 1 : 0, packageName);
7810        if (mSystemReady) {
7811            msg.sendToTarget();
7812        } else {
7813            if (mPostSystemReadyMessages == null) {
7814                mPostSystemReadyMessages = new ArrayList<>();
7815            }
7816            mPostSystemReadyMessages.add(msg);
7817        }
7818    }
7819
7820    void startCleaningPackages() {
7821        // reader
7822        synchronized (mPackages) {
7823            if (!isExternalMediaAvailable()) {
7824                return;
7825            }
7826            if (mSettings.mPackagesToBeCleaned.isEmpty()) {
7827                return;
7828            }
7829        }
7830        Intent intent = new Intent(PackageManager.ACTION_CLEAN_EXTERNAL_STORAGE);
7831        intent.setComponent(DEFAULT_CONTAINER_COMPONENT);
7832        IActivityManager am = ActivityManagerNative.getDefault();
7833        if (am != null) {
7834            try {
7835                am.startService(null, intent, null, UserHandle.USER_OWNER);
7836            } catch (RemoteException e) {
7837            }
7838        }
7839    }
7840
7841    @Override
7842    public void installPackage(String originPath, IPackageInstallObserver2 observer,
7843            int installFlags, String installerPackageName, VerificationParams verificationParams,
7844            String packageAbiOverride) {
7845        installPackageAsUser(originPath, observer, installFlags, installerPackageName, verificationParams,
7846                packageAbiOverride, UserHandle.getCallingUserId());
7847    }
7848
7849    @Override
7850    public void installPackageAsUser(String originPath, IPackageInstallObserver2 observer,
7851            int installFlags, String installerPackageName, VerificationParams verificationParams,
7852            String packageAbiOverride, int userId) {
7853        mContext.enforceCallingOrSelfPermission(android.Manifest.permission.INSTALL_PACKAGES, null);
7854
7855        final int callingUid = Binder.getCallingUid();
7856        enforceCrossUserPermission(callingUid, userId, true, true, "installPackageAsUser");
7857
7858        if (isUserRestricted(userId, UserManager.DISALLOW_INSTALL_APPS)) {
7859            try {
7860                if (observer != null) {
7861                    observer.onPackageInstalled("", INSTALL_FAILED_USER_RESTRICTED, null, null);
7862                }
7863            } catch (RemoteException re) {
7864            }
7865            return;
7866        }
7867
7868        if ((callingUid == Process.SHELL_UID) || (callingUid == Process.ROOT_UID)) {
7869            installFlags |= PackageManager.INSTALL_FROM_ADB;
7870
7871        } else {
7872            // Caller holds INSTALL_PACKAGES permission, so we're less strict
7873            // about installerPackageName.
7874
7875            installFlags &= ~PackageManager.INSTALL_FROM_ADB;
7876            installFlags &= ~PackageManager.INSTALL_ALL_USERS;
7877        }
7878
7879        UserHandle user;
7880        if ((installFlags & PackageManager.INSTALL_ALL_USERS) != 0) {
7881            user = UserHandle.ALL;
7882        } else {
7883            user = new UserHandle(userId);
7884        }
7885
7886        verificationParams.setInstallerUid(callingUid);
7887
7888        final File originFile = new File(originPath);
7889        final OriginInfo origin = OriginInfo.fromUntrustedFile(originFile);
7890
7891        final Message msg = mHandler.obtainMessage(INIT_COPY);
7892        msg.obj = new InstallParams(origin, observer, installFlags,
7893                installerPackageName, verificationParams, user, packageAbiOverride);
7894        mHandler.sendMessage(msg);
7895    }
7896
7897    void installStage(String packageName, File stagedDir, String stagedCid,
7898            IPackageInstallObserver2 observer, PackageInstaller.SessionParams params,
7899            String installerPackageName, int installerUid, UserHandle user) {
7900        final VerificationParams verifParams = new VerificationParams(null, params.originatingUri,
7901                params.referrerUri, installerUid, null);
7902
7903        final OriginInfo origin;
7904        if (stagedDir != null) {
7905            origin = OriginInfo.fromStagedFile(stagedDir);
7906        } else {
7907            origin = OriginInfo.fromStagedContainer(stagedCid);
7908        }
7909
7910        final Message msg = mHandler.obtainMessage(INIT_COPY);
7911        msg.obj = new InstallParams(origin, observer, params.installFlags,
7912                installerPackageName, verifParams, user, params.abiOverride);
7913        mHandler.sendMessage(msg);
7914    }
7915
7916    private void sendPackageAddedForUser(String packageName, PackageSetting pkgSetting, int userId) {
7917        Bundle extras = new Bundle(1);
7918        extras.putInt(Intent.EXTRA_UID, UserHandle.getUid(userId, pkgSetting.appId));
7919
7920        sendPackageBroadcast(Intent.ACTION_PACKAGE_ADDED,
7921                packageName, extras, null, null, new int[] {userId});
7922        try {
7923            IActivityManager am = ActivityManagerNative.getDefault();
7924            final boolean isSystem =
7925                    isSystemApp(pkgSetting) || isUpdatedSystemApp(pkgSetting);
7926            if (isSystem && am.isUserRunning(userId, false)) {
7927                // The just-installed/enabled app is bundled on the system, so presumed
7928                // to be able to run automatically without needing an explicit launch.
7929                // Send it a BOOT_COMPLETED if it would ordinarily have gotten one.
7930                Intent bcIntent = new Intent(Intent.ACTION_BOOT_COMPLETED)
7931                        .addFlags(Intent.FLAG_INCLUDE_STOPPED_PACKAGES)
7932                        .setPackage(packageName);
7933                am.broadcastIntent(null, bcIntent, null, null, 0, null, null, null,
7934                        android.app.AppOpsManager.OP_NONE, false, false, userId);
7935            }
7936        } catch (RemoteException e) {
7937            // shouldn't happen
7938            Slog.w(TAG, "Unable to bootstrap installed package", e);
7939        }
7940    }
7941
7942    @Override
7943    public boolean setApplicationHiddenSettingAsUser(String packageName, boolean hidden,
7944            int userId) {
7945        mContext.enforceCallingOrSelfPermission(android.Manifest.permission.MANAGE_USERS, null);
7946        PackageSetting pkgSetting;
7947        final int uid = Binder.getCallingUid();
7948        enforceCrossUserPermission(uid, userId, true, true,
7949                "setApplicationHiddenSetting for user " + userId);
7950
7951        if (hidden && isPackageDeviceAdmin(packageName, userId)) {
7952            Slog.w(TAG, "Not hiding package " + packageName + ": has active device admin");
7953            return false;
7954        }
7955
7956        long callingId = Binder.clearCallingIdentity();
7957        try {
7958            boolean sendAdded = false;
7959            boolean sendRemoved = false;
7960            // writer
7961            synchronized (mPackages) {
7962                pkgSetting = mSettings.mPackages.get(packageName);
7963                if (pkgSetting == null) {
7964                    return false;
7965                }
7966                if (pkgSetting.getHidden(userId) != hidden) {
7967                    pkgSetting.setHidden(hidden, userId);
7968                    mSettings.writePackageRestrictionsLPr(userId);
7969                    if (hidden) {
7970                        sendRemoved = true;
7971                    } else {
7972                        sendAdded = true;
7973                    }
7974                }
7975            }
7976            if (sendAdded) {
7977                sendPackageAddedForUser(packageName, pkgSetting, userId);
7978                return true;
7979            }
7980            if (sendRemoved) {
7981                killApplication(packageName, UserHandle.getUid(userId, pkgSetting.appId),
7982                        "hiding pkg");
7983                sendApplicationHiddenForUser(packageName, pkgSetting, userId);
7984            }
7985        } finally {
7986            Binder.restoreCallingIdentity(callingId);
7987        }
7988        return false;
7989    }
7990
7991    private void sendApplicationHiddenForUser(String packageName, PackageSetting pkgSetting,
7992            int userId) {
7993        final PackageRemovedInfo info = new PackageRemovedInfo();
7994        info.removedPackage = packageName;
7995        info.removedUsers = new int[] {userId};
7996        info.uid = UserHandle.getUid(userId, pkgSetting.appId);
7997        info.sendBroadcast(false, false, false);
7998    }
7999
8000    /**
8001     * Returns true if application is not found or there was an error. Otherwise it returns
8002     * the hidden state of the package for the given user.
8003     */
8004    @Override
8005    public boolean getApplicationHiddenSettingAsUser(String packageName, int userId) {
8006        mContext.enforceCallingOrSelfPermission(android.Manifest.permission.MANAGE_USERS, null);
8007        enforceCrossUserPermission(Binder.getCallingUid(), userId, true,
8008                false, "getApplicationHidden for user " + userId);
8009        PackageSetting pkgSetting;
8010        long callingId = Binder.clearCallingIdentity();
8011        try {
8012            // writer
8013            synchronized (mPackages) {
8014                pkgSetting = mSettings.mPackages.get(packageName);
8015                if (pkgSetting == null) {
8016                    return true;
8017                }
8018                return pkgSetting.getHidden(userId);
8019            }
8020        } finally {
8021            Binder.restoreCallingIdentity(callingId);
8022        }
8023    }
8024
8025    /**
8026     * @hide
8027     */
8028    @Override
8029    public int installExistingPackageAsUser(String packageName, int userId) {
8030        mContext.enforceCallingOrSelfPermission(android.Manifest.permission.INSTALL_PACKAGES,
8031                null);
8032        PackageSetting pkgSetting;
8033        final int uid = Binder.getCallingUid();
8034        enforceCrossUserPermission(uid, userId, true, true, "installExistingPackage for user "
8035                + userId);
8036        if (isUserRestricted(userId, UserManager.DISALLOW_INSTALL_APPS)) {
8037            return PackageManager.INSTALL_FAILED_USER_RESTRICTED;
8038        }
8039
8040        long callingId = Binder.clearCallingIdentity();
8041        try {
8042            boolean sendAdded = false;
8043            Bundle extras = new Bundle(1);
8044
8045            // writer
8046            synchronized (mPackages) {
8047                pkgSetting = mSettings.mPackages.get(packageName);
8048                if (pkgSetting == null) {
8049                    return PackageManager.INSTALL_FAILED_INVALID_URI;
8050                }
8051                if (!pkgSetting.getInstalled(userId)) {
8052                    pkgSetting.setInstalled(true, userId);
8053                    pkgSetting.setHidden(false, userId);
8054                    mSettings.writePackageRestrictionsLPr(userId);
8055                    sendAdded = true;
8056                }
8057            }
8058
8059            if (sendAdded) {
8060                sendPackageAddedForUser(packageName, pkgSetting, userId);
8061            }
8062        } finally {
8063            Binder.restoreCallingIdentity(callingId);
8064        }
8065
8066        return PackageManager.INSTALL_SUCCEEDED;
8067    }
8068
8069    boolean isUserRestricted(int userId, String restrictionKey) {
8070        Bundle restrictions = sUserManager.getUserRestrictions(userId);
8071        if (restrictions.getBoolean(restrictionKey, false)) {
8072            Log.w(TAG, "User is restricted: " + restrictionKey);
8073            return true;
8074        }
8075        return false;
8076    }
8077
8078    @Override
8079    public void verifyPendingInstall(int id, int verificationCode) throws RemoteException {
8080        mContext.enforceCallingOrSelfPermission(
8081                android.Manifest.permission.PACKAGE_VERIFICATION_AGENT,
8082                "Only package verification agents can verify applications");
8083
8084        final Message msg = mHandler.obtainMessage(PACKAGE_VERIFIED);
8085        final PackageVerificationResponse response = new PackageVerificationResponse(
8086                verificationCode, Binder.getCallingUid());
8087        msg.arg1 = id;
8088        msg.obj = response;
8089        mHandler.sendMessage(msg);
8090    }
8091
8092    @Override
8093    public void extendVerificationTimeout(int id, int verificationCodeAtTimeout,
8094            long millisecondsToDelay) {
8095        mContext.enforceCallingOrSelfPermission(
8096                android.Manifest.permission.PACKAGE_VERIFICATION_AGENT,
8097                "Only package verification agents can extend verification timeouts");
8098
8099        final PackageVerificationState state = mPendingVerification.get(id);
8100        final PackageVerificationResponse response = new PackageVerificationResponse(
8101                verificationCodeAtTimeout, Binder.getCallingUid());
8102
8103        if (millisecondsToDelay > PackageManager.MAXIMUM_VERIFICATION_TIMEOUT) {
8104            millisecondsToDelay = PackageManager.MAXIMUM_VERIFICATION_TIMEOUT;
8105        }
8106        if (millisecondsToDelay < 0) {
8107            millisecondsToDelay = 0;
8108        }
8109        if ((verificationCodeAtTimeout != PackageManager.VERIFICATION_ALLOW)
8110                && (verificationCodeAtTimeout != PackageManager.VERIFICATION_REJECT)) {
8111            verificationCodeAtTimeout = PackageManager.VERIFICATION_REJECT;
8112        }
8113
8114        if ((state != null) && !state.timeoutExtended()) {
8115            state.extendTimeout();
8116
8117            final Message msg = mHandler.obtainMessage(PACKAGE_VERIFIED);
8118            msg.arg1 = id;
8119            msg.obj = response;
8120            mHandler.sendMessageDelayed(msg, millisecondsToDelay);
8121        }
8122    }
8123
8124    private void broadcastPackageVerified(int verificationId, Uri packageUri,
8125            int verificationCode, UserHandle user) {
8126        final Intent intent = new Intent(Intent.ACTION_PACKAGE_VERIFIED);
8127        intent.setDataAndType(packageUri, PACKAGE_MIME_TYPE);
8128        intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
8129        intent.putExtra(PackageManager.EXTRA_VERIFICATION_ID, verificationId);
8130        intent.putExtra(PackageManager.EXTRA_VERIFICATION_RESULT, verificationCode);
8131
8132        mContext.sendBroadcastAsUser(intent, user,
8133                android.Manifest.permission.PACKAGE_VERIFICATION_AGENT);
8134    }
8135
8136    private ComponentName matchComponentForVerifier(String packageName,
8137            List<ResolveInfo> receivers) {
8138        ActivityInfo targetReceiver = null;
8139
8140        final int NR = receivers.size();
8141        for (int i = 0; i < NR; i++) {
8142            final ResolveInfo info = receivers.get(i);
8143            if (info.activityInfo == null) {
8144                continue;
8145            }
8146
8147            if (packageName.equals(info.activityInfo.packageName)) {
8148                targetReceiver = info.activityInfo;
8149                break;
8150            }
8151        }
8152
8153        if (targetReceiver == null) {
8154            return null;
8155        }
8156
8157        return new ComponentName(targetReceiver.packageName, targetReceiver.name);
8158    }
8159
8160    private List<ComponentName> matchVerifiers(PackageInfoLite pkgInfo,
8161            List<ResolveInfo> receivers, final PackageVerificationState verificationState) {
8162        if (pkgInfo.verifiers.length == 0) {
8163            return null;
8164        }
8165
8166        final int N = pkgInfo.verifiers.length;
8167        final List<ComponentName> sufficientVerifiers = new ArrayList<ComponentName>(N + 1);
8168        for (int i = 0; i < N; i++) {
8169            final VerifierInfo verifierInfo = pkgInfo.verifiers[i];
8170
8171            final ComponentName comp = matchComponentForVerifier(verifierInfo.packageName,
8172                    receivers);
8173            if (comp == null) {
8174                continue;
8175            }
8176
8177            final int verifierUid = getUidForVerifier(verifierInfo);
8178            if (verifierUid == -1) {
8179                continue;
8180            }
8181
8182            if (DEBUG_VERIFY) {
8183                Slog.d(TAG, "Added sufficient verifier " + verifierInfo.packageName
8184                        + " with the correct signature");
8185            }
8186            sufficientVerifiers.add(comp);
8187            verificationState.addSufficientVerifier(verifierUid);
8188        }
8189
8190        return sufficientVerifiers;
8191    }
8192
8193    private int getUidForVerifier(VerifierInfo verifierInfo) {
8194        synchronized (mPackages) {
8195            final PackageParser.Package pkg = mPackages.get(verifierInfo.packageName);
8196            if (pkg == null) {
8197                return -1;
8198            } else if (pkg.mSignatures.length != 1) {
8199                Slog.i(TAG, "Verifier package " + verifierInfo.packageName
8200                        + " has more than one signature; ignoring");
8201                return -1;
8202            }
8203
8204            /*
8205             * If the public key of the package's signature does not match
8206             * our expected public key, then this is a different package and
8207             * we should skip.
8208             */
8209
8210            final byte[] expectedPublicKey;
8211            try {
8212                final Signature verifierSig = pkg.mSignatures[0];
8213                final PublicKey publicKey = verifierSig.getPublicKey();
8214                expectedPublicKey = publicKey.getEncoded();
8215            } catch (CertificateException e) {
8216                return -1;
8217            }
8218
8219            final byte[] actualPublicKey = verifierInfo.publicKey.getEncoded();
8220
8221            if (!Arrays.equals(actualPublicKey, expectedPublicKey)) {
8222                Slog.i(TAG, "Verifier package " + verifierInfo.packageName
8223                        + " does not have the expected public key; ignoring");
8224                return -1;
8225            }
8226
8227            return pkg.applicationInfo.uid;
8228        }
8229    }
8230
8231    @Override
8232    public void finishPackageInstall(int token) {
8233        enforceSystemOrRoot("Only the system is allowed to finish installs");
8234
8235        if (DEBUG_INSTALL) {
8236            Slog.v(TAG, "BM finishing package install for " + token);
8237        }
8238
8239        final Message msg = mHandler.obtainMessage(POST_INSTALL, token, 0);
8240        mHandler.sendMessage(msg);
8241    }
8242
8243    /**
8244     * Get the verification agent timeout.
8245     *
8246     * @return verification timeout in milliseconds
8247     */
8248    private long getVerificationTimeout() {
8249        return android.provider.Settings.Global.getLong(mContext.getContentResolver(),
8250                android.provider.Settings.Global.PACKAGE_VERIFIER_TIMEOUT,
8251                DEFAULT_VERIFICATION_TIMEOUT);
8252    }
8253
8254    /**
8255     * Get the default verification agent response code.
8256     *
8257     * @return default verification response code
8258     */
8259    private int getDefaultVerificationResponse() {
8260        return android.provider.Settings.Global.getInt(mContext.getContentResolver(),
8261                android.provider.Settings.Global.PACKAGE_VERIFIER_DEFAULT_RESPONSE,
8262                DEFAULT_VERIFICATION_RESPONSE);
8263    }
8264
8265    /**
8266     * Check whether or not package verification has been enabled.
8267     *
8268     * @return true if verification should be performed
8269     */
8270    private boolean isVerificationEnabled(int userId, int installFlags) {
8271        if (!DEFAULT_VERIFY_ENABLE) {
8272            return false;
8273        }
8274
8275        boolean ensureVerifyAppsEnabled = isUserRestricted(userId, UserManager.ENSURE_VERIFY_APPS);
8276
8277        // Check if installing from ADB
8278        if ((installFlags & PackageManager.INSTALL_FROM_ADB) != 0) {
8279            // Do not run verification in a test harness environment
8280            if (ActivityManager.isRunningInTestHarness()) {
8281                return false;
8282            }
8283            if (ensureVerifyAppsEnabled) {
8284                return true;
8285            }
8286            // Check if the developer does not want package verification for ADB installs
8287            if (android.provider.Settings.Global.getInt(mContext.getContentResolver(),
8288                    android.provider.Settings.Global.PACKAGE_VERIFIER_INCLUDE_ADB, 1) == 0) {
8289                return false;
8290            }
8291        }
8292
8293        if (ensureVerifyAppsEnabled) {
8294            return true;
8295        }
8296
8297        return android.provider.Settings.Global.getInt(mContext.getContentResolver(),
8298                android.provider.Settings.Global.PACKAGE_VERIFIER_ENABLE, 1) == 1;
8299    }
8300
8301    /**
8302     * Get the "allow unknown sources" setting.
8303     *
8304     * @return the current "allow unknown sources" setting
8305     */
8306    private int getUnknownSourcesSettings() {
8307        return android.provider.Settings.Global.getInt(mContext.getContentResolver(),
8308                android.provider.Settings.Global.INSTALL_NON_MARKET_APPS,
8309                -1);
8310    }
8311
8312    @Override
8313    public void setInstallerPackageName(String targetPackage, String installerPackageName) {
8314        final int uid = Binder.getCallingUid();
8315        // writer
8316        synchronized (mPackages) {
8317            PackageSetting targetPackageSetting = mSettings.mPackages.get(targetPackage);
8318            if (targetPackageSetting == null) {
8319                throw new IllegalArgumentException("Unknown target package: " + targetPackage);
8320            }
8321
8322            PackageSetting installerPackageSetting;
8323            if (installerPackageName != null) {
8324                installerPackageSetting = mSettings.mPackages.get(installerPackageName);
8325                if (installerPackageSetting == null) {
8326                    throw new IllegalArgumentException("Unknown installer package: "
8327                            + installerPackageName);
8328                }
8329            } else {
8330                installerPackageSetting = null;
8331            }
8332
8333            Signature[] callerSignature;
8334            Object obj = mSettings.getUserIdLPr(uid);
8335            if (obj != null) {
8336                if (obj instanceof SharedUserSetting) {
8337                    callerSignature = ((SharedUserSetting)obj).signatures.mSignatures;
8338                } else if (obj instanceof PackageSetting) {
8339                    callerSignature = ((PackageSetting)obj).signatures.mSignatures;
8340                } else {
8341                    throw new SecurityException("Bad object " + obj + " for uid " + uid);
8342                }
8343            } else {
8344                throw new SecurityException("Unknown calling uid " + uid);
8345            }
8346
8347            // Verify: can't set installerPackageName to a package that is
8348            // not signed with the same cert as the caller.
8349            if (installerPackageSetting != null) {
8350                if (compareSignatures(callerSignature,
8351                        installerPackageSetting.signatures.mSignatures)
8352                        != PackageManager.SIGNATURE_MATCH) {
8353                    throw new SecurityException(
8354                            "Caller does not have same cert as new installer package "
8355                            + installerPackageName);
8356                }
8357            }
8358
8359            // Verify: if target already has an installer package, it must
8360            // be signed with the same cert as the caller.
8361            if (targetPackageSetting.installerPackageName != null) {
8362                PackageSetting setting = mSettings.mPackages.get(
8363                        targetPackageSetting.installerPackageName);
8364                // If the currently set package isn't valid, then it's always
8365                // okay to change it.
8366                if (setting != null) {
8367                    if (compareSignatures(callerSignature,
8368                            setting.signatures.mSignatures)
8369                            != PackageManager.SIGNATURE_MATCH) {
8370                        throw new SecurityException(
8371                                "Caller does not have same cert as old installer package "
8372                                + targetPackageSetting.installerPackageName);
8373                    }
8374                }
8375            }
8376
8377            // Okay!
8378            targetPackageSetting.installerPackageName = installerPackageName;
8379            scheduleWriteSettingsLocked();
8380        }
8381    }
8382
8383    private void processPendingInstall(final InstallArgs args, final int currentStatus) {
8384        // Queue up an async operation since the package installation may take a little while.
8385        mHandler.post(new Runnable() {
8386            public void run() {
8387                mHandler.removeCallbacks(this);
8388                 // Result object to be returned
8389                PackageInstalledInfo res = new PackageInstalledInfo();
8390                res.returnCode = currentStatus;
8391                res.uid = -1;
8392                res.pkg = null;
8393                res.removedInfo = new PackageRemovedInfo();
8394                if (res.returnCode == PackageManager.INSTALL_SUCCEEDED) {
8395                    args.doPreInstall(res.returnCode);
8396                    synchronized (mInstallLock) {
8397                        installPackageLI(args, res);
8398                    }
8399                    args.doPostInstall(res.returnCode, res.uid);
8400                }
8401
8402                // A restore should be performed at this point if (a) the install
8403                // succeeded, (b) the operation is not an update, and (c) the new
8404                // package has not opted out of backup participation.
8405                final boolean update = res.removedInfo.removedPackage != null;
8406                final int flags = (res.pkg == null) ? 0 : res.pkg.applicationInfo.flags;
8407                boolean doRestore = !update
8408                        && ((flags & ApplicationInfo.FLAG_ALLOW_BACKUP) != 0);
8409
8410                // Set up the post-install work request bookkeeping.  This will be used
8411                // and cleaned up by the post-install event handling regardless of whether
8412                // there's a restore pass performed.  Token values are >= 1.
8413                int token;
8414                if (mNextInstallToken < 0) mNextInstallToken = 1;
8415                token = mNextInstallToken++;
8416
8417                PostInstallData data = new PostInstallData(args, res);
8418                mRunningInstalls.put(token, data);
8419                if (DEBUG_INSTALL) Log.v(TAG, "+ starting restore round-trip " + token);
8420
8421                if (res.returnCode == PackageManager.INSTALL_SUCCEEDED && doRestore) {
8422                    // Pass responsibility to the Backup Manager.  It will perform a
8423                    // restore if appropriate, then pass responsibility back to the
8424                    // Package Manager to run the post-install observer callbacks
8425                    // and broadcasts.
8426                    IBackupManager bm = IBackupManager.Stub.asInterface(
8427                            ServiceManager.getService(Context.BACKUP_SERVICE));
8428                    if (bm != null) {
8429                        if (DEBUG_INSTALL) Log.v(TAG, "token " + token
8430                                + " to BM for possible restore");
8431                        try {
8432                            if (bm.isBackupServiceActive(UserHandle.USER_OWNER)) {
8433                                bm.restoreAtInstall(res.pkg.applicationInfo.packageName, token);
8434                            } else {
8435                                doRestore = false;
8436                            }
8437                        } catch (RemoteException e) {
8438                            // can't happen; the backup manager is local
8439                        } catch (Exception e) {
8440                            Slog.e(TAG, "Exception trying to enqueue restore", e);
8441                            doRestore = false;
8442                        }
8443                    } else {
8444                        Slog.e(TAG, "Backup Manager not found!");
8445                        doRestore = false;
8446                    }
8447                }
8448
8449                if (!doRestore) {
8450                    // No restore possible, or the Backup Manager was mysteriously not
8451                    // available -- just fire the post-install work request directly.
8452                    if (DEBUG_INSTALL) Log.v(TAG, "No restore - queue post-install for " + token);
8453                    Message msg = mHandler.obtainMessage(POST_INSTALL, token, 0);
8454                    mHandler.sendMessage(msg);
8455                }
8456            }
8457        });
8458    }
8459
8460    private abstract class HandlerParams {
8461        private static final int MAX_RETRIES = 4;
8462
8463        /**
8464         * Number of times startCopy() has been attempted and had a non-fatal
8465         * error.
8466         */
8467        private int mRetries = 0;
8468
8469        /** User handle for the user requesting the information or installation. */
8470        private final UserHandle mUser;
8471
8472        HandlerParams(UserHandle user) {
8473            mUser = user;
8474        }
8475
8476        UserHandle getUser() {
8477            return mUser;
8478        }
8479
8480        final boolean startCopy() {
8481            boolean res;
8482            try {
8483                if (DEBUG_INSTALL) Slog.i(TAG, "startCopy " + mUser + ": " + this);
8484
8485                if (++mRetries > MAX_RETRIES) {
8486                    Slog.w(TAG, "Failed to invoke remote methods on default container service. Giving up");
8487                    mHandler.sendEmptyMessage(MCS_GIVE_UP);
8488                    handleServiceError();
8489                    return false;
8490                } else {
8491                    handleStartCopy();
8492                    res = true;
8493                }
8494            } catch (RemoteException e) {
8495                if (DEBUG_INSTALL) Slog.i(TAG, "Posting install MCS_RECONNECT");
8496                mHandler.sendEmptyMessage(MCS_RECONNECT);
8497                res = false;
8498            }
8499            handleReturnCode();
8500            return res;
8501        }
8502
8503        final void serviceError() {
8504            if (DEBUG_INSTALL) Slog.i(TAG, "serviceError");
8505            handleServiceError();
8506            handleReturnCode();
8507        }
8508
8509        abstract void handleStartCopy() throws RemoteException;
8510        abstract void handleServiceError();
8511        abstract void handleReturnCode();
8512    }
8513
8514    class MeasureParams extends HandlerParams {
8515        private final PackageStats mStats;
8516        private boolean mSuccess;
8517
8518        private final IPackageStatsObserver mObserver;
8519
8520        public MeasureParams(PackageStats stats, IPackageStatsObserver observer) {
8521            super(new UserHandle(stats.userHandle));
8522            mObserver = observer;
8523            mStats = stats;
8524        }
8525
8526        @Override
8527        public String toString() {
8528            return "MeasureParams{"
8529                + Integer.toHexString(System.identityHashCode(this))
8530                + " " + mStats.packageName + "}";
8531        }
8532
8533        @Override
8534        void handleStartCopy() throws RemoteException {
8535            synchronized (mInstallLock) {
8536                mSuccess = getPackageSizeInfoLI(mStats.packageName, mStats.userHandle, mStats);
8537            }
8538
8539            if (mSuccess) {
8540                final boolean mounted;
8541                if (Environment.isExternalStorageEmulated()) {
8542                    mounted = true;
8543                } else {
8544                    final String status = Environment.getExternalStorageState();
8545                    mounted = (Environment.MEDIA_MOUNTED.equals(status)
8546                            || Environment.MEDIA_MOUNTED_READ_ONLY.equals(status));
8547                }
8548
8549                if (mounted) {
8550                    final UserEnvironment userEnv = new UserEnvironment(mStats.userHandle);
8551
8552                    mStats.externalCacheSize = calculateDirectorySize(mContainerService,
8553                            userEnv.buildExternalStorageAppCacheDirs(mStats.packageName));
8554
8555                    mStats.externalDataSize = calculateDirectorySize(mContainerService,
8556                            userEnv.buildExternalStorageAppDataDirs(mStats.packageName));
8557
8558                    // Always subtract cache size, since it's a subdirectory
8559                    mStats.externalDataSize -= mStats.externalCacheSize;
8560
8561                    mStats.externalMediaSize = calculateDirectorySize(mContainerService,
8562                            userEnv.buildExternalStorageAppMediaDirs(mStats.packageName));
8563
8564                    mStats.externalObbSize = calculateDirectorySize(mContainerService,
8565                            userEnv.buildExternalStorageAppObbDirs(mStats.packageName));
8566                }
8567            }
8568        }
8569
8570        @Override
8571        void handleReturnCode() {
8572            if (mObserver != null) {
8573                try {
8574                    mObserver.onGetStatsCompleted(mStats, mSuccess);
8575                } catch (RemoteException e) {
8576                    Slog.i(TAG, "Observer no longer exists.");
8577                }
8578            }
8579        }
8580
8581        @Override
8582        void handleServiceError() {
8583            Slog.e(TAG, "Could not measure application " + mStats.packageName
8584                            + " external storage");
8585        }
8586    }
8587
8588    private static long calculateDirectorySize(IMediaContainerService mcs, File[] paths)
8589            throws RemoteException {
8590        long result = 0;
8591        for (File path : paths) {
8592            result += mcs.calculateDirectorySize(path.getAbsolutePath());
8593        }
8594        return result;
8595    }
8596
8597    private static void clearDirectory(IMediaContainerService mcs, File[] paths) {
8598        for (File path : paths) {
8599            try {
8600                mcs.clearDirectory(path.getAbsolutePath());
8601            } catch (RemoteException e) {
8602            }
8603        }
8604    }
8605
8606    static class OriginInfo {
8607        /**
8608         * Location where install is coming from, before it has been
8609         * copied/renamed into place. This could be a single monolithic APK
8610         * file, or a cluster directory. This location may be untrusted.
8611         */
8612        final File file;
8613        final String cid;
8614
8615        /**
8616         * Flag indicating that {@link #file} or {@link #cid} has already been
8617         * staged, meaning downstream users don't need to defensively copy the
8618         * contents.
8619         */
8620        final boolean staged;
8621
8622        /**
8623         * Flag indicating that {@link #file} or {@link #cid} is an already
8624         * installed app that is being moved.
8625         */
8626        final boolean existing;
8627
8628        final String resolvedPath;
8629        final File resolvedFile;
8630
8631        static OriginInfo fromNothing() {
8632            return new OriginInfo(null, null, false, false);
8633        }
8634
8635        static OriginInfo fromUntrustedFile(File file) {
8636            return new OriginInfo(file, null, false, false);
8637        }
8638
8639        static OriginInfo fromExistingFile(File file) {
8640            return new OriginInfo(file, null, false, true);
8641        }
8642
8643        static OriginInfo fromStagedFile(File file) {
8644            return new OriginInfo(file, null, true, false);
8645        }
8646
8647        static OriginInfo fromStagedContainer(String cid) {
8648            return new OriginInfo(null, cid, true, false);
8649        }
8650
8651        private OriginInfo(File file, String cid, boolean staged, boolean existing) {
8652            this.file = file;
8653            this.cid = cid;
8654            this.staged = staged;
8655            this.existing = existing;
8656
8657            if (cid != null) {
8658                resolvedPath = PackageHelper.getSdDir(cid);
8659                resolvedFile = new File(resolvedPath);
8660            } else if (file != null) {
8661                resolvedPath = file.getAbsolutePath();
8662                resolvedFile = file;
8663            } else {
8664                resolvedPath = null;
8665                resolvedFile = null;
8666            }
8667        }
8668    }
8669
8670    class InstallParams extends HandlerParams {
8671        final OriginInfo origin;
8672        final IPackageInstallObserver2 observer;
8673        int installFlags;
8674        final String installerPackageName;
8675        final VerificationParams verificationParams;
8676        private InstallArgs mArgs;
8677        private int mRet;
8678        final String packageAbiOverride;
8679
8680        InstallParams(OriginInfo origin, IPackageInstallObserver2 observer, int installFlags,
8681                String installerPackageName, VerificationParams verificationParams, UserHandle user,
8682                String packageAbiOverride) {
8683            super(user);
8684            this.origin = origin;
8685            this.observer = observer;
8686            this.installFlags = installFlags;
8687            this.installerPackageName = installerPackageName;
8688            this.verificationParams = verificationParams;
8689            this.packageAbiOverride = packageAbiOverride;
8690        }
8691
8692        @Override
8693        public String toString() {
8694            return "InstallParams{" + Integer.toHexString(System.identityHashCode(this))
8695                    + " file=" + origin.file + " cid=" + origin.cid + "}";
8696        }
8697
8698        public ManifestDigest getManifestDigest() {
8699            if (verificationParams == null) {
8700                return null;
8701            }
8702            return verificationParams.getManifestDigest();
8703        }
8704
8705        private int installLocationPolicy(PackageInfoLite pkgLite) {
8706            String packageName = pkgLite.packageName;
8707            int installLocation = pkgLite.installLocation;
8708            boolean onSd = (installFlags & PackageManager.INSTALL_EXTERNAL) != 0;
8709            // reader
8710            synchronized (mPackages) {
8711                PackageParser.Package pkg = mPackages.get(packageName);
8712                if (pkg != null) {
8713                    if ((installFlags & PackageManager.INSTALL_REPLACE_EXISTING) != 0) {
8714                        // Check for downgrading.
8715                        if ((installFlags & PackageManager.INSTALL_ALLOW_DOWNGRADE) == 0) {
8716                            try {
8717                                checkDowngrade(pkg, pkgLite);
8718                            } catch (PackageManagerException e) {
8719                                Slog.w(TAG, "Downgrade detected: " + e.getMessage());
8720                                return PackageHelper.RECOMMEND_FAILED_VERSION_DOWNGRADE;
8721                            }
8722                        }
8723                        // Check for updated system application.
8724                        if ((pkg.applicationInfo.flags & ApplicationInfo.FLAG_SYSTEM) != 0) {
8725                            if (onSd) {
8726                                Slog.w(TAG, "Cannot install update to system app on sdcard");
8727                                return PackageHelper.RECOMMEND_FAILED_INVALID_LOCATION;
8728                            }
8729                            return PackageHelper.RECOMMEND_INSTALL_INTERNAL;
8730                        } else {
8731                            if (onSd) {
8732                                // Install flag overrides everything.
8733                                return PackageHelper.RECOMMEND_INSTALL_EXTERNAL;
8734                            }
8735                            // If current upgrade specifies particular preference
8736                            if (installLocation == PackageInfo.INSTALL_LOCATION_INTERNAL_ONLY) {
8737                                // Application explicitly specified internal.
8738                                return PackageHelper.RECOMMEND_INSTALL_INTERNAL;
8739                            } else if (installLocation == PackageInfo.INSTALL_LOCATION_PREFER_EXTERNAL) {
8740                                // App explictly prefers external. Let policy decide
8741                            } else {
8742                                // Prefer previous location
8743                                if (isExternal(pkg)) {
8744                                    return PackageHelper.RECOMMEND_INSTALL_EXTERNAL;
8745                                }
8746                                return PackageHelper.RECOMMEND_INSTALL_INTERNAL;
8747                            }
8748                        }
8749                    } else {
8750                        // Invalid install. Return error code
8751                        return PackageHelper.RECOMMEND_FAILED_ALREADY_EXISTS;
8752                    }
8753                }
8754            }
8755            // All the special cases have been taken care of.
8756            // Return result based on recommended install location.
8757            if (onSd) {
8758                return PackageHelper.RECOMMEND_INSTALL_EXTERNAL;
8759            }
8760            return pkgLite.recommendedInstallLocation;
8761        }
8762
8763        /*
8764         * Invoke remote method to get package information and install
8765         * location values. Override install location based on default
8766         * policy if needed and then create install arguments based
8767         * on the install location.
8768         */
8769        public void handleStartCopy() throws RemoteException {
8770            int ret = PackageManager.INSTALL_SUCCEEDED;
8771
8772            // If we're already staged, we've firmly committed to an install location
8773            if (origin.staged) {
8774                if (origin.file != null) {
8775                    installFlags |= PackageManager.INSTALL_INTERNAL;
8776                    installFlags &= ~PackageManager.INSTALL_EXTERNAL;
8777                } else if (origin.cid != null) {
8778                    installFlags |= PackageManager.INSTALL_EXTERNAL;
8779                    installFlags &= ~PackageManager.INSTALL_INTERNAL;
8780                } else {
8781                    throw new IllegalStateException("Invalid stage location");
8782                }
8783            }
8784
8785            final boolean onSd = (installFlags & PackageManager.INSTALL_EXTERNAL) != 0;
8786            final boolean onInt = (installFlags & PackageManager.INSTALL_INTERNAL) != 0;
8787
8788            PackageInfoLite pkgLite = null;
8789
8790            if (onInt && onSd) {
8791                // Check if both bits are set.
8792                Slog.w(TAG, "Conflicting flags specified for installing on both internal and external");
8793                ret = PackageManager.INSTALL_FAILED_INVALID_INSTALL_LOCATION;
8794            } else {
8795                pkgLite = mContainerService.getMinimalPackageInfo(origin.resolvedPath, installFlags,
8796                        packageAbiOverride);
8797
8798                /*
8799                 * If we have too little free space, try to free cache
8800                 * before giving up.
8801                 */
8802                if (!origin.staged && pkgLite.recommendedInstallLocation
8803                        == PackageHelper.RECOMMEND_FAILED_INSUFFICIENT_STORAGE) {
8804                    // TODO: focus freeing disk space on the target device
8805                    final StorageManager storage = StorageManager.from(mContext);
8806                    final long lowThreshold = storage.getStorageLowBytes(
8807                            Environment.getDataDirectory());
8808
8809                    final long sizeBytes = mContainerService.calculateInstalledSize(
8810                            origin.resolvedPath, isForwardLocked(), packageAbiOverride);
8811
8812                    if (mInstaller.freeCache(sizeBytes + lowThreshold) >= 0) {
8813                        pkgLite = mContainerService.getMinimalPackageInfo(origin.resolvedPath,
8814                                installFlags, packageAbiOverride);
8815                    }
8816
8817                    /*
8818                     * The cache free must have deleted the file we
8819                     * downloaded to install.
8820                     *
8821                     * TODO: fix the "freeCache" call to not delete
8822                     *       the file we care about.
8823                     */
8824                    if (pkgLite.recommendedInstallLocation
8825                            == PackageHelper.RECOMMEND_FAILED_INVALID_URI) {
8826                        pkgLite.recommendedInstallLocation
8827                            = PackageHelper.RECOMMEND_FAILED_INSUFFICIENT_STORAGE;
8828                    }
8829                }
8830            }
8831
8832            if (ret == PackageManager.INSTALL_SUCCEEDED) {
8833                int loc = pkgLite.recommendedInstallLocation;
8834                if (loc == PackageHelper.RECOMMEND_FAILED_INVALID_LOCATION) {
8835                    ret = PackageManager.INSTALL_FAILED_INVALID_INSTALL_LOCATION;
8836                } else if (loc == PackageHelper.RECOMMEND_FAILED_ALREADY_EXISTS) {
8837                    ret = PackageManager.INSTALL_FAILED_ALREADY_EXISTS;
8838                } else if (loc == PackageHelper.RECOMMEND_FAILED_INSUFFICIENT_STORAGE) {
8839                    ret = PackageManager.INSTALL_FAILED_INSUFFICIENT_STORAGE;
8840                } else if (loc == PackageHelper.RECOMMEND_FAILED_INVALID_APK) {
8841                    ret = PackageManager.INSTALL_FAILED_INVALID_APK;
8842                } else if (loc == PackageHelper.RECOMMEND_FAILED_INVALID_URI) {
8843                    ret = PackageManager.INSTALL_FAILED_INVALID_URI;
8844                } else if (loc == PackageHelper.RECOMMEND_MEDIA_UNAVAILABLE) {
8845                    ret = PackageManager.INSTALL_FAILED_MEDIA_UNAVAILABLE;
8846                } else {
8847                    // Override with defaults if needed.
8848                    loc = installLocationPolicy(pkgLite);
8849                    if (loc == PackageHelper.RECOMMEND_FAILED_VERSION_DOWNGRADE) {
8850                        ret = PackageManager.INSTALL_FAILED_VERSION_DOWNGRADE;
8851                    } else if (!onSd && !onInt) {
8852                        // Override install location with flags
8853                        if (loc == PackageHelper.RECOMMEND_INSTALL_EXTERNAL) {
8854                            // Set the flag to install on external media.
8855                            installFlags |= PackageManager.INSTALL_EXTERNAL;
8856                            installFlags &= ~PackageManager.INSTALL_INTERNAL;
8857                        } else {
8858                            // Make sure the flag for installing on external
8859                            // media is unset
8860                            installFlags |= PackageManager.INSTALL_INTERNAL;
8861                            installFlags &= ~PackageManager.INSTALL_EXTERNAL;
8862                        }
8863                    }
8864                }
8865            }
8866
8867            final InstallArgs args = createInstallArgs(this);
8868            mArgs = args;
8869
8870            if (ret == PackageManager.INSTALL_SUCCEEDED) {
8871                 /*
8872                 * ADB installs appear as UserHandle.USER_ALL, and can only be performed by
8873                 * UserHandle.USER_OWNER, so use the package verifier for UserHandle.USER_OWNER.
8874                 */
8875                int userIdentifier = getUser().getIdentifier();
8876                if (userIdentifier == UserHandle.USER_ALL
8877                        && ((installFlags & PackageManager.INSTALL_FROM_ADB) != 0)) {
8878                    userIdentifier = UserHandle.USER_OWNER;
8879                }
8880
8881                /*
8882                 * Determine if we have any installed package verifiers. If we
8883                 * do, then we'll defer to them to verify the packages.
8884                 */
8885                final int requiredUid = mRequiredVerifierPackage == null ? -1
8886                        : getPackageUid(mRequiredVerifierPackage, userIdentifier);
8887                if (!origin.existing && requiredUid != -1
8888                        && isVerificationEnabled(userIdentifier, installFlags)) {
8889                    final Intent verification = new Intent(
8890                            Intent.ACTION_PACKAGE_NEEDS_VERIFICATION);
8891                    verification.addFlags(Intent.FLAG_RECEIVER_FOREGROUND);
8892                    verification.setDataAndType(Uri.fromFile(new File(origin.resolvedPath)),
8893                            PACKAGE_MIME_TYPE);
8894                    verification.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
8895
8896                    final List<ResolveInfo> receivers = queryIntentReceivers(verification,
8897                            PACKAGE_MIME_TYPE, PackageManager.GET_DISABLED_COMPONENTS,
8898                            0 /* TODO: Which userId? */);
8899
8900                    if (DEBUG_VERIFY) {
8901                        Slog.d(TAG, "Found " + receivers.size() + " verifiers for intent "
8902                                + verification.toString() + " with " + pkgLite.verifiers.length
8903                                + " optional verifiers");
8904                    }
8905
8906                    final int verificationId = mPendingVerificationToken++;
8907
8908                    verification.putExtra(PackageManager.EXTRA_VERIFICATION_ID, verificationId);
8909
8910                    verification.putExtra(PackageManager.EXTRA_VERIFICATION_INSTALLER_PACKAGE,
8911                            installerPackageName);
8912
8913                    verification.putExtra(PackageManager.EXTRA_VERIFICATION_INSTALL_FLAGS,
8914                            installFlags);
8915
8916                    verification.putExtra(PackageManager.EXTRA_VERIFICATION_PACKAGE_NAME,
8917                            pkgLite.packageName);
8918
8919                    verification.putExtra(PackageManager.EXTRA_VERIFICATION_VERSION_CODE,
8920                            pkgLite.versionCode);
8921
8922                    if (verificationParams != null) {
8923                        if (verificationParams.getVerificationURI() != null) {
8924                           verification.putExtra(PackageManager.EXTRA_VERIFICATION_URI,
8925                                 verificationParams.getVerificationURI());
8926                        }
8927                        if (verificationParams.getOriginatingURI() != null) {
8928                            verification.putExtra(Intent.EXTRA_ORIGINATING_URI,
8929                                  verificationParams.getOriginatingURI());
8930                        }
8931                        if (verificationParams.getReferrer() != null) {
8932                            verification.putExtra(Intent.EXTRA_REFERRER,
8933                                  verificationParams.getReferrer());
8934                        }
8935                        if (verificationParams.getOriginatingUid() >= 0) {
8936                            verification.putExtra(Intent.EXTRA_ORIGINATING_UID,
8937                                  verificationParams.getOriginatingUid());
8938                        }
8939                        if (verificationParams.getInstallerUid() >= 0) {
8940                            verification.putExtra(PackageManager.EXTRA_VERIFICATION_INSTALLER_UID,
8941                                  verificationParams.getInstallerUid());
8942                        }
8943                    }
8944
8945                    final PackageVerificationState verificationState = new PackageVerificationState(
8946                            requiredUid, args);
8947
8948                    mPendingVerification.append(verificationId, verificationState);
8949
8950                    final List<ComponentName> sufficientVerifiers = matchVerifiers(pkgLite,
8951                            receivers, verificationState);
8952
8953                    /*
8954                     * If any sufficient verifiers were listed in the package
8955                     * manifest, attempt to ask them.
8956                     */
8957                    if (sufficientVerifiers != null) {
8958                        final int N = sufficientVerifiers.size();
8959                        if (N == 0) {
8960                            Slog.i(TAG, "Additional verifiers required, but none installed.");
8961                            ret = PackageManager.INSTALL_FAILED_VERIFICATION_FAILURE;
8962                        } else {
8963                            for (int i = 0; i < N; i++) {
8964                                final ComponentName verifierComponent = sufficientVerifiers.get(i);
8965
8966                                final Intent sufficientIntent = new Intent(verification);
8967                                sufficientIntent.setComponent(verifierComponent);
8968
8969                                mContext.sendBroadcastAsUser(sufficientIntent, getUser());
8970                            }
8971                        }
8972                    }
8973
8974                    final ComponentName requiredVerifierComponent = matchComponentForVerifier(
8975                            mRequiredVerifierPackage, receivers);
8976                    if (ret == PackageManager.INSTALL_SUCCEEDED
8977                            && mRequiredVerifierPackage != null) {
8978                        /*
8979                         * Send the intent to the required verification agent,
8980                         * but only start the verification timeout after the
8981                         * target BroadcastReceivers have run.
8982                         */
8983                        verification.setComponent(requiredVerifierComponent);
8984                        mContext.sendOrderedBroadcastAsUser(verification, getUser(),
8985                                android.Manifest.permission.PACKAGE_VERIFICATION_AGENT,
8986                                new BroadcastReceiver() {
8987                                    @Override
8988                                    public void onReceive(Context context, Intent intent) {
8989                                        final Message msg = mHandler
8990                                                .obtainMessage(CHECK_PENDING_VERIFICATION);
8991                                        msg.arg1 = verificationId;
8992                                        mHandler.sendMessageDelayed(msg, getVerificationTimeout());
8993                                    }
8994                                }, null, 0, null, null);
8995
8996                        /*
8997                         * We don't want the copy to proceed until verification
8998                         * succeeds, so null out this field.
8999                         */
9000                        mArgs = null;
9001                    }
9002                } else {
9003                    /*
9004                     * No package verification is enabled, so immediately start
9005                     * the remote call to initiate copy using temporary file.
9006                     */
9007                    ret = args.copyApk(mContainerService, true);
9008                }
9009            }
9010
9011            mRet = ret;
9012        }
9013
9014        @Override
9015        void handleReturnCode() {
9016            // If mArgs is null, then MCS couldn't be reached. When it
9017            // reconnects, it will try again to install. At that point, this
9018            // will succeed.
9019            if (mArgs != null) {
9020                processPendingInstall(mArgs, mRet);
9021            }
9022        }
9023
9024        @Override
9025        void handleServiceError() {
9026            mArgs = createInstallArgs(this);
9027            mRet = PackageManager.INSTALL_FAILED_INTERNAL_ERROR;
9028        }
9029
9030        public boolean isForwardLocked() {
9031            return (installFlags & PackageManager.INSTALL_FORWARD_LOCK) != 0;
9032        }
9033    }
9034
9035    /**
9036     * Used during creation of InstallArgs
9037     *
9038     * @param installFlags package installation flags
9039     * @return true if should be installed on external storage
9040     */
9041    private static boolean installOnSd(int installFlags) {
9042        if ((installFlags & PackageManager.INSTALL_INTERNAL) != 0) {
9043            return false;
9044        }
9045        if ((installFlags & PackageManager.INSTALL_EXTERNAL) != 0) {
9046            return true;
9047        }
9048        return false;
9049    }
9050
9051    /**
9052     * Used during creation of InstallArgs
9053     *
9054     * @param installFlags package installation flags
9055     * @return true if should be installed as forward locked
9056     */
9057    private static boolean installForwardLocked(int installFlags) {
9058        return (installFlags & PackageManager.INSTALL_FORWARD_LOCK) != 0;
9059    }
9060
9061    private InstallArgs createInstallArgs(InstallParams params) {
9062        if (installOnSd(params.installFlags) || params.isForwardLocked()) {
9063            return new AsecInstallArgs(params);
9064        } else {
9065            return new FileInstallArgs(params);
9066        }
9067    }
9068
9069    /**
9070     * Create args that describe an existing installed package. Typically used
9071     * when cleaning up old installs, or used as a move source.
9072     */
9073    private InstallArgs createInstallArgsForExisting(int installFlags, String codePath,
9074            String resourcePath, String nativeLibraryRoot, String[] instructionSets) {
9075        final boolean isInAsec;
9076        if (installOnSd(installFlags)) {
9077            /* Apps on SD card are always in ASEC containers. */
9078            isInAsec = true;
9079        } else if (installForwardLocked(installFlags)
9080                && !codePath.startsWith(mDrmAppPrivateInstallDir.getAbsolutePath())) {
9081            /*
9082             * Forward-locked apps are only in ASEC containers if they're the
9083             * new style
9084             */
9085            isInAsec = true;
9086        } else {
9087            isInAsec = false;
9088        }
9089
9090        if (isInAsec) {
9091            return new AsecInstallArgs(codePath, instructionSets,
9092                    installOnSd(installFlags), installForwardLocked(installFlags));
9093        } else {
9094            return new FileInstallArgs(codePath, resourcePath, nativeLibraryRoot,
9095                    instructionSets);
9096        }
9097    }
9098
9099    static abstract class InstallArgs {
9100        /** @see InstallParams#origin */
9101        final OriginInfo origin;
9102
9103        final IPackageInstallObserver2 observer;
9104        // Always refers to PackageManager flags only
9105        final int installFlags;
9106        final String installerPackageName;
9107        final ManifestDigest manifestDigest;
9108        final UserHandle user;
9109        final String abiOverride;
9110
9111        // The list of instruction sets supported by this app. This is currently
9112        // only used during the rmdex() phase to clean up resources. We can get rid of this
9113        // if we move dex files under the common app path.
9114        /* nullable */ String[] instructionSets;
9115
9116        InstallArgs(OriginInfo origin, IPackageInstallObserver2 observer, int installFlags,
9117                String installerPackageName, ManifestDigest manifestDigest, UserHandle user,
9118                String[] instructionSets, String abiOverride) {
9119            this.origin = origin;
9120            this.installFlags = installFlags;
9121            this.observer = observer;
9122            this.installerPackageName = installerPackageName;
9123            this.manifestDigest = manifestDigest;
9124            this.user = user;
9125            this.instructionSets = instructionSets;
9126            this.abiOverride = abiOverride;
9127        }
9128
9129        abstract int copyApk(IMediaContainerService imcs, boolean temp) throws RemoteException;
9130        abstract int doPreInstall(int status);
9131
9132        /**
9133         * Rename package into final resting place. All paths on the given
9134         * scanned package should be updated to reflect the rename.
9135         */
9136        abstract boolean doRename(int status, PackageParser.Package pkg, String oldCodePath);
9137        abstract int doPostInstall(int status, int uid);
9138
9139        /** @see PackageSettingBase#codePathString */
9140        abstract String getCodePath();
9141        /** @see PackageSettingBase#resourcePathString */
9142        abstract String getResourcePath();
9143        abstract String getLegacyNativeLibraryPath();
9144
9145        // Need installer lock especially for dex file removal.
9146        abstract void cleanUpResourcesLI();
9147        abstract boolean doPostDeleteLI(boolean delete);
9148        abstract boolean checkFreeStorage(IMediaContainerService imcs) throws RemoteException;
9149
9150        /**
9151         * Called before the source arguments are copied. This is used mostly
9152         * for MoveParams when it needs to read the source file to put it in the
9153         * destination.
9154         */
9155        int doPreCopy() {
9156            return PackageManager.INSTALL_SUCCEEDED;
9157        }
9158
9159        /**
9160         * Called after the source arguments are copied. This is used mostly for
9161         * MoveParams when it needs to read the source file to put it in the
9162         * destination.
9163         *
9164         * @return
9165         */
9166        int doPostCopy(int uid) {
9167            return PackageManager.INSTALL_SUCCEEDED;
9168        }
9169
9170        protected boolean isFwdLocked() {
9171            return (installFlags & PackageManager.INSTALL_FORWARD_LOCK) != 0;
9172        }
9173
9174        protected boolean isExternal() {
9175            return (installFlags & PackageManager.INSTALL_EXTERNAL) != 0;
9176        }
9177
9178        UserHandle getUser() {
9179            return user;
9180        }
9181    }
9182
9183    private void removeDexFiles(List<String> allCodePaths, String[] instructionSets) {
9184        if (!allCodePaths.isEmpty()) {
9185            if (instructionSets == null) {
9186                throw new IllegalStateException("instructionSet == null");
9187            }
9188            String[] dexCodeInstructionSets = getDexCodeInstructionSets(instructionSets);
9189            for (String codePath : allCodePaths) {
9190                for (String dexCodeInstructionSet : dexCodeInstructionSets) {
9191                    int retCode = mInstaller.rmdex(codePath, dexCodeInstructionSet);
9192                    if (retCode < 0) {
9193                        Slog.w(TAG, "Couldn't remove dex file for package: "
9194                                + " at location " + codePath + ", retcode=" + retCode);
9195                        // we don't consider this to be a failure of the core package deletion
9196                    }
9197                }
9198            }
9199        }
9200    }
9201
9202    /**
9203     * Logic to handle installation of non-ASEC applications, including copying
9204     * and renaming logic.
9205     */
9206    class FileInstallArgs extends InstallArgs {
9207        private File codeFile;
9208        private File resourceFile;
9209        private File legacyNativeLibraryPath;
9210
9211        // Example topology:
9212        // /data/app/com.example/base.apk
9213        // /data/app/com.example/split_foo.apk
9214        // /data/app/com.example/lib/arm/libfoo.so
9215        // /data/app/com.example/lib/arm64/libfoo.so
9216        // /data/app/com.example/dalvik/arm/base.apk@classes.dex
9217
9218        /** New install */
9219        FileInstallArgs(InstallParams params) {
9220            super(params.origin, params.observer, params.installFlags,
9221                    params.installerPackageName, params.getManifestDigest(), params.getUser(),
9222                    null /* instruction sets */, params.packageAbiOverride);
9223            if (isFwdLocked()) {
9224                throw new IllegalArgumentException("Forward locking only supported in ASEC");
9225            }
9226        }
9227
9228        /** Existing install */
9229        FileInstallArgs(String codePath, String resourcePath, String legacyNativeLibraryPath,
9230                String[] instructionSets) {
9231            super(OriginInfo.fromNothing(), null, 0, null, null, null, instructionSets, null);
9232            this.codeFile = (codePath != null) ? new File(codePath) : null;
9233            this.resourceFile = (resourcePath != null) ? new File(resourcePath) : null;
9234            this.legacyNativeLibraryPath = (legacyNativeLibraryPath != null) ?
9235                    new File(legacyNativeLibraryPath) : null;
9236        }
9237
9238        boolean checkFreeStorage(IMediaContainerService imcs) throws RemoteException {
9239            final long sizeBytes = imcs.calculateInstalledSize(origin.file.getAbsolutePath(),
9240                    isFwdLocked(), abiOverride);
9241
9242            final StorageManager storage = StorageManager.from(mContext);
9243            return (sizeBytes <= storage.getStorageBytesUntilLow(Environment.getDataDirectory()));
9244        }
9245
9246        int copyApk(IMediaContainerService imcs, boolean temp) throws RemoteException {
9247            if (origin.staged) {
9248                Slog.d(TAG, origin.file + " already staged; skipping copy");
9249                codeFile = origin.file;
9250                resourceFile = origin.file;
9251                return PackageManager.INSTALL_SUCCEEDED;
9252            }
9253
9254            try {
9255                final File tempDir = mInstallerService.allocateInternalStageDirLegacy();
9256                codeFile = tempDir;
9257                resourceFile = tempDir;
9258            } catch (IOException e) {
9259                Slog.w(TAG, "Failed to create copy file: " + e);
9260                return PackageManager.INSTALL_FAILED_INSUFFICIENT_STORAGE;
9261            }
9262
9263            final IParcelFileDescriptorFactory target = new IParcelFileDescriptorFactory.Stub() {
9264                @Override
9265                public ParcelFileDescriptor open(String name, int mode) throws RemoteException {
9266                    if (!FileUtils.isValidExtFilename(name)) {
9267                        throw new IllegalArgumentException("Invalid filename: " + name);
9268                    }
9269                    try {
9270                        final File file = new File(codeFile, name);
9271                        final FileDescriptor fd = Os.open(file.getAbsolutePath(),
9272                                O_RDWR | O_CREAT, 0644);
9273                        Os.chmod(file.getAbsolutePath(), 0644);
9274                        return new ParcelFileDescriptor(fd);
9275                    } catch (ErrnoException e) {
9276                        throw new RemoteException("Failed to open: " + e.getMessage());
9277                    }
9278                }
9279            };
9280
9281            int ret = PackageManager.INSTALL_SUCCEEDED;
9282            ret = imcs.copyPackage(origin.file.getAbsolutePath(), target);
9283            if (ret != PackageManager.INSTALL_SUCCEEDED) {
9284                Slog.e(TAG, "Failed to copy package");
9285                return ret;
9286            }
9287
9288            final File libraryRoot = new File(codeFile, LIB_DIR_NAME);
9289            NativeLibraryHelper.Handle handle = null;
9290            try {
9291                handle = NativeLibraryHelper.Handle.create(codeFile);
9292                ret = NativeLibraryHelper.copyNativeBinariesWithOverride(handle, libraryRoot,
9293                        abiOverride);
9294            } catch (IOException e) {
9295                Slog.e(TAG, "Copying native libraries failed", e);
9296                ret = PackageManager.INSTALL_FAILED_INTERNAL_ERROR;
9297            } finally {
9298                IoUtils.closeQuietly(handle);
9299            }
9300
9301            return ret;
9302        }
9303
9304        int doPreInstall(int status) {
9305            if (status != PackageManager.INSTALL_SUCCEEDED) {
9306                cleanUp();
9307            }
9308            return status;
9309        }
9310
9311        boolean doRename(int status, PackageParser.Package pkg, String oldCodePath) {
9312            if (status != PackageManager.INSTALL_SUCCEEDED) {
9313                cleanUp();
9314                return false;
9315            } else {
9316                final File beforeCodeFile = codeFile;
9317                final File afterCodeFile = getNextCodePath(pkg.packageName);
9318
9319                Slog.d(TAG, "Renaming " + beforeCodeFile + " to " + afterCodeFile);
9320                try {
9321                    Os.rename(beforeCodeFile.getAbsolutePath(), afterCodeFile.getAbsolutePath());
9322                } catch (ErrnoException e) {
9323                    Slog.d(TAG, "Failed to rename", e);
9324                    return false;
9325                }
9326
9327                if (!SELinux.restoreconRecursive(afterCodeFile)) {
9328                    Slog.d(TAG, "Failed to restorecon");
9329                    return false;
9330                }
9331
9332                // Reflect the rename internally
9333                codeFile = afterCodeFile;
9334                resourceFile = afterCodeFile;
9335
9336                // Reflect the rename in scanned details
9337                pkg.codePath = afterCodeFile.getAbsolutePath();
9338                pkg.baseCodePath = FileUtils.rewriteAfterRename(beforeCodeFile, afterCodeFile,
9339                        pkg.baseCodePath);
9340                pkg.splitCodePaths = FileUtils.rewriteAfterRename(beforeCodeFile, afterCodeFile,
9341                        pkg.splitCodePaths);
9342
9343                // Reflect the rename in app info
9344                pkg.applicationInfo.setCodePath(pkg.codePath);
9345                pkg.applicationInfo.setBaseCodePath(pkg.baseCodePath);
9346                pkg.applicationInfo.setSplitCodePaths(pkg.splitCodePaths);
9347                pkg.applicationInfo.setResourcePath(pkg.codePath);
9348                pkg.applicationInfo.setBaseResourcePath(pkg.baseCodePath);
9349                pkg.applicationInfo.setSplitResourcePaths(pkg.splitCodePaths);
9350
9351                return true;
9352            }
9353        }
9354
9355        int doPostInstall(int status, int uid) {
9356            if (status != PackageManager.INSTALL_SUCCEEDED) {
9357                cleanUp();
9358            }
9359            return status;
9360        }
9361
9362        @Override
9363        String getCodePath() {
9364            return (codeFile != null) ? codeFile.getAbsolutePath() : null;
9365        }
9366
9367        @Override
9368        String getResourcePath() {
9369            return (resourceFile != null) ? resourceFile.getAbsolutePath() : null;
9370        }
9371
9372        @Override
9373        String getLegacyNativeLibraryPath() {
9374            return (legacyNativeLibraryPath != null) ? legacyNativeLibraryPath.getAbsolutePath() : null;
9375        }
9376
9377        private boolean cleanUp() {
9378            if (codeFile == null || !codeFile.exists()) {
9379                return false;
9380            }
9381
9382            if (codeFile.isDirectory()) {
9383                mInstaller.rmPackageDir(codeFile.getAbsolutePath());
9384            } else {
9385                codeFile.delete();
9386            }
9387
9388            if (resourceFile != null && !FileUtils.contains(codeFile, resourceFile)) {
9389                resourceFile.delete();
9390            }
9391
9392            if (legacyNativeLibraryPath != null && !FileUtils.contains(codeFile, legacyNativeLibraryPath)) {
9393                if (!FileUtils.deleteContents(legacyNativeLibraryPath)) {
9394                    Slog.w(TAG, "Couldn't delete native library directory " + legacyNativeLibraryPath);
9395                }
9396                legacyNativeLibraryPath.delete();
9397            }
9398
9399            return true;
9400        }
9401
9402        void cleanUpResourcesLI() {
9403            // Try enumerating all code paths before deleting
9404            List<String> allCodePaths = Collections.EMPTY_LIST;
9405            if (codeFile != null && codeFile.exists()) {
9406                try {
9407                    final PackageLite pkg = PackageParser.parsePackageLite(codeFile, 0);
9408                    allCodePaths = pkg.getAllCodePaths();
9409                } catch (PackageParserException e) {
9410                    // Ignored; we tried our best
9411                }
9412            }
9413
9414            cleanUp();
9415            removeDexFiles(allCodePaths, instructionSets);
9416        }
9417
9418        boolean doPostDeleteLI(boolean delete) {
9419            // XXX err, shouldn't we respect the delete flag?
9420            cleanUpResourcesLI();
9421            return true;
9422        }
9423    }
9424
9425    private boolean isAsecExternal(String cid) {
9426        final String asecPath = PackageHelper.getSdFilesystem(cid);
9427        return !asecPath.startsWith(mAsecInternalPath);
9428    }
9429
9430    private static void maybeThrowExceptionForMultiArchCopy(String message, int copyRet) throws
9431            PackageManagerException {
9432        if (copyRet < 0) {
9433            if (copyRet != PackageManager.NO_NATIVE_LIBRARIES &&
9434                    copyRet != PackageManager.INSTALL_FAILED_NO_MATCHING_ABIS) {
9435                throw new PackageManagerException(copyRet, message);
9436            }
9437        }
9438    }
9439
9440    /**
9441     * Extract the MountService "container ID" from the full code path of an
9442     * .apk.
9443     */
9444    static String cidFromCodePath(String fullCodePath) {
9445        int eidx = fullCodePath.lastIndexOf("/");
9446        String subStr1 = fullCodePath.substring(0, eidx);
9447        int sidx = subStr1.lastIndexOf("/");
9448        return subStr1.substring(sidx+1, eidx);
9449    }
9450
9451    /**
9452     * Logic to handle installation of ASEC applications, including copying and
9453     * renaming logic.
9454     */
9455    class AsecInstallArgs extends InstallArgs {
9456        static final String RES_FILE_NAME = "pkg.apk";
9457        static final String PUBLIC_RES_FILE_NAME = "res.zip";
9458
9459        String cid;
9460        String packagePath;
9461        String resourcePath;
9462        String legacyNativeLibraryDir;
9463
9464        /** New install */
9465        AsecInstallArgs(InstallParams params) {
9466            super(params.origin, params.observer, params.installFlags,
9467                    params.installerPackageName, params.getManifestDigest(),
9468                    params.getUser(), null /* instruction sets */,
9469                    params.packageAbiOverride);
9470        }
9471
9472        /** Existing install */
9473        AsecInstallArgs(String fullCodePath, String[] instructionSets,
9474                        boolean isExternal, boolean isForwardLocked) {
9475            super(OriginInfo.fromNothing(), null, (isExternal ? INSTALL_EXTERNAL : 0)
9476                    | (isForwardLocked ? INSTALL_FORWARD_LOCK : 0), null, null, null,
9477                    instructionSets, null);
9478            // Hackily pretend we're still looking at a full code path
9479            if (!fullCodePath.endsWith(RES_FILE_NAME)) {
9480                fullCodePath = new File(fullCodePath, RES_FILE_NAME).getAbsolutePath();
9481            }
9482
9483            // Extract cid from fullCodePath
9484            int eidx = fullCodePath.lastIndexOf("/");
9485            String subStr1 = fullCodePath.substring(0, eidx);
9486            int sidx = subStr1.lastIndexOf("/");
9487            cid = subStr1.substring(sidx+1, eidx);
9488            setMountPath(subStr1);
9489        }
9490
9491        AsecInstallArgs(String cid, String[] instructionSets, boolean isForwardLocked) {
9492            super(OriginInfo.fromNothing(), null, (isAsecExternal(cid) ? INSTALL_EXTERNAL : 0)
9493                    | (isForwardLocked ? INSTALL_FORWARD_LOCK : 0), null, null, null,
9494                    instructionSets, null);
9495            this.cid = cid;
9496            setMountPath(PackageHelper.getSdDir(cid));
9497        }
9498
9499        void createCopyFile() {
9500            cid = mInstallerService.allocateExternalStageCidLegacy();
9501        }
9502
9503        boolean checkFreeStorage(IMediaContainerService imcs) throws RemoteException {
9504            final long sizeBytes = imcs.calculateInstalledSize(packagePath, isFwdLocked(),
9505                    abiOverride);
9506
9507            final File target;
9508            if (isExternal()) {
9509                target = new UserEnvironment(UserHandle.USER_OWNER).getExternalStorageDirectory();
9510            } else {
9511                target = Environment.getDataDirectory();
9512            }
9513
9514            final StorageManager storage = StorageManager.from(mContext);
9515            return (sizeBytes <= storage.getStorageBytesUntilLow(target));
9516        }
9517
9518        int copyApk(IMediaContainerService imcs, boolean temp) throws RemoteException {
9519            if (origin.staged) {
9520                Slog.d(TAG, origin.cid + " already staged; skipping copy");
9521                cid = origin.cid;
9522                setMountPath(PackageHelper.getSdDir(cid));
9523                return PackageManager.INSTALL_SUCCEEDED;
9524            }
9525
9526            if (temp) {
9527                createCopyFile();
9528            } else {
9529                /*
9530                 * Pre-emptively destroy the container since it's destroyed if
9531                 * copying fails due to it existing anyway.
9532                 */
9533                PackageHelper.destroySdDir(cid);
9534            }
9535
9536            final String newMountPath = imcs.copyPackageToContainer(
9537                    origin.file.getAbsolutePath(), cid, getEncryptKey(), isExternal(),
9538                    isFwdLocked(), deriveAbiOverride(abiOverride, null /* settings */));
9539
9540            if (newMountPath != null) {
9541                setMountPath(newMountPath);
9542                return PackageManager.INSTALL_SUCCEEDED;
9543            } else {
9544                return PackageManager.INSTALL_FAILED_CONTAINER_ERROR;
9545            }
9546        }
9547
9548        @Override
9549        String getCodePath() {
9550            return packagePath;
9551        }
9552
9553        @Override
9554        String getResourcePath() {
9555            return resourcePath;
9556        }
9557
9558        @Override
9559        String getLegacyNativeLibraryPath() {
9560            return legacyNativeLibraryDir;
9561        }
9562
9563        int doPreInstall(int status) {
9564            if (status != PackageManager.INSTALL_SUCCEEDED) {
9565                // Destroy container
9566                PackageHelper.destroySdDir(cid);
9567            } else {
9568                boolean mounted = PackageHelper.isContainerMounted(cid);
9569                if (!mounted) {
9570                    String newMountPath = PackageHelper.mountSdDir(cid, getEncryptKey(),
9571                            Process.SYSTEM_UID);
9572                    if (newMountPath != null) {
9573                        setMountPath(newMountPath);
9574                    } else {
9575                        return PackageManager.INSTALL_FAILED_CONTAINER_ERROR;
9576                    }
9577                }
9578            }
9579            return status;
9580        }
9581
9582        boolean doRename(int status, PackageParser.Package pkg, String oldCodePath) {
9583            String newCacheId = getNextCodePath(oldCodePath, pkg.packageName, "/" + RES_FILE_NAME);
9584            String newMountPath = null;
9585            if (PackageHelper.isContainerMounted(cid)) {
9586                // Unmount the container
9587                if (!PackageHelper.unMountSdDir(cid)) {
9588                    Slog.i(TAG, "Failed to unmount " + cid + " before renaming");
9589                    return false;
9590                }
9591            }
9592            if (!PackageHelper.renameSdDir(cid, newCacheId)) {
9593                Slog.e(TAG, "Failed to rename " + cid + " to " + newCacheId +
9594                        " which might be stale. Will try to clean up.");
9595                // Clean up the stale container and proceed to recreate.
9596                if (!PackageHelper.destroySdDir(newCacheId)) {
9597                    Slog.e(TAG, "Very strange. Cannot clean up stale container " + newCacheId);
9598                    return false;
9599                }
9600                // Successfully cleaned up stale container. Try to rename again.
9601                if (!PackageHelper.renameSdDir(cid, newCacheId)) {
9602                    Slog.e(TAG, "Failed to rename " + cid + " to " + newCacheId
9603                            + " inspite of cleaning it up.");
9604                    return false;
9605                }
9606            }
9607            if (!PackageHelper.isContainerMounted(newCacheId)) {
9608                Slog.w(TAG, "Mounting container " + newCacheId);
9609                newMountPath = PackageHelper.mountSdDir(newCacheId,
9610                        getEncryptKey(), Process.SYSTEM_UID);
9611            } else {
9612                newMountPath = PackageHelper.getSdDir(newCacheId);
9613            }
9614            if (newMountPath == null) {
9615                Slog.w(TAG, "Failed to get cache path for  " + newCacheId);
9616                return false;
9617            }
9618            Log.i(TAG, "Succesfully renamed " + cid +
9619                    " to " + newCacheId +
9620                    " at new path: " + newMountPath);
9621            cid = newCacheId;
9622
9623            final File beforeCodeFile = new File(packagePath);
9624            setMountPath(newMountPath);
9625            final File afterCodeFile = new File(packagePath);
9626
9627            // Reflect the rename in scanned details
9628            pkg.codePath = afterCodeFile.getAbsolutePath();
9629            pkg.baseCodePath = FileUtils.rewriteAfterRename(beforeCodeFile, afterCodeFile,
9630                    pkg.baseCodePath);
9631            pkg.splitCodePaths = FileUtils.rewriteAfterRename(beforeCodeFile, afterCodeFile,
9632                    pkg.splitCodePaths);
9633
9634            // Reflect the rename in app info
9635            pkg.applicationInfo.setCodePath(pkg.codePath);
9636            pkg.applicationInfo.setBaseCodePath(pkg.baseCodePath);
9637            pkg.applicationInfo.setSplitCodePaths(pkg.splitCodePaths);
9638            pkg.applicationInfo.setResourcePath(pkg.codePath);
9639            pkg.applicationInfo.setBaseResourcePath(pkg.baseCodePath);
9640            pkg.applicationInfo.setSplitResourcePaths(pkg.splitCodePaths);
9641
9642            return true;
9643        }
9644
9645        private void setMountPath(String mountPath) {
9646            final File mountFile = new File(mountPath);
9647
9648            final File monolithicFile = new File(mountFile, RES_FILE_NAME);
9649            if (monolithicFile.exists()) {
9650                packagePath = monolithicFile.getAbsolutePath();
9651                if (isFwdLocked()) {
9652                    resourcePath = new File(mountFile, PUBLIC_RES_FILE_NAME).getAbsolutePath();
9653                } else {
9654                    resourcePath = packagePath;
9655                }
9656            } else {
9657                packagePath = mountFile.getAbsolutePath();
9658                resourcePath = packagePath;
9659            }
9660
9661            legacyNativeLibraryDir = new File(mountFile, LIB_DIR_NAME).getAbsolutePath();
9662        }
9663
9664        int doPostInstall(int status, int uid) {
9665            if (status != PackageManager.INSTALL_SUCCEEDED) {
9666                cleanUp();
9667            } else {
9668                final int groupOwner;
9669                final String protectedFile;
9670                if (isFwdLocked()) {
9671                    groupOwner = UserHandle.getSharedAppGid(uid);
9672                    protectedFile = RES_FILE_NAME;
9673                } else {
9674                    groupOwner = -1;
9675                    protectedFile = null;
9676                }
9677
9678                if (uid < Process.FIRST_APPLICATION_UID
9679                        || !PackageHelper.fixSdPermissions(cid, groupOwner, protectedFile)) {
9680                    Slog.e(TAG, "Failed to finalize " + cid);
9681                    PackageHelper.destroySdDir(cid);
9682                    return PackageManager.INSTALL_FAILED_CONTAINER_ERROR;
9683                }
9684
9685                boolean mounted = PackageHelper.isContainerMounted(cid);
9686                if (!mounted) {
9687                    PackageHelper.mountSdDir(cid, getEncryptKey(), Process.myUid());
9688                }
9689            }
9690            return status;
9691        }
9692
9693        private void cleanUp() {
9694            if (DEBUG_SD_INSTALL) Slog.i(TAG, "cleanUp");
9695
9696            // Destroy secure container
9697            PackageHelper.destroySdDir(cid);
9698        }
9699
9700        private List<String> getAllCodePaths() {
9701            final File codeFile = new File(getCodePath());
9702            if (codeFile != null && codeFile.exists()) {
9703                try {
9704                    final PackageLite pkg = PackageParser.parsePackageLite(codeFile, 0);
9705                    return pkg.getAllCodePaths();
9706                } catch (PackageParserException e) {
9707                    // Ignored; we tried our best
9708                }
9709            }
9710            return Collections.EMPTY_LIST;
9711        }
9712
9713        void cleanUpResourcesLI() {
9714            // Enumerate all code paths before deleting
9715            cleanUpResourcesLI(getAllCodePaths());
9716        }
9717
9718        private void cleanUpResourcesLI(List<String> allCodePaths) {
9719            cleanUp();
9720            removeDexFiles(allCodePaths, instructionSets);
9721        }
9722
9723
9724
9725        String getPackageName() {
9726            return getAsecPackageName(cid);
9727        }
9728
9729        boolean doPostDeleteLI(boolean delete) {
9730            if (DEBUG_SD_INSTALL) Slog.i(TAG, "doPostDeleteLI() del=" + delete);
9731            final List<String> allCodePaths = getAllCodePaths();
9732            boolean mounted = PackageHelper.isContainerMounted(cid);
9733            if (mounted) {
9734                // Unmount first
9735                if (PackageHelper.unMountSdDir(cid)) {
9736                    mounted = false;
9737                }
9738            }
9739            if (!mounted && delete) {
9740                cleanUpResourcesLI(allCodePaths);
9741            }
9742            return !mounted;
9743        }
9744
9745        @Override
9746        int doPreCopy() {
9747            if (isFwdLocked()) {
9748                if (!PackageHelper.fixSdPermissions(cid,
9749                        getPackageUid(DEFAULT_CONTAINER_PACKAGE, 0), RES_FILE_NAME)) {
9750                    return PackageManager.INSTALL_FAILED_CONTAINER_ERROR;
9751                }
9752            }
9753
9754            return PackageManager.INSTALL_SUCCEEDED;
9755        }
9756
9757        @Override
9758        int doPostCopy(int uid) {
9759            if (isFwdLocked()) {
9760                if (uid < Process.FIRST_APPLICATION_UID
9761                        || !PackageHelper.fixSdPermissions(cid, UserHandle.getSharedAppGid(uid),
9762                                RES_FILE_NAME)) {
9763                    Slog.e(TAG, "Failed to finalize " + cid);
9764                    PackageHelper.destroySdDir(cid);
9765                    return PackageManager.INSTALL_FAILED_CONTAINER_ERROR;
9766                }
9767            }
9768
9769            return PackageManager.INSTALL_SUCCEEDED;
9770        }
9771    }
9772
9773    static String getAsecPackageName(String packageCid) {
9774        int idx = packageCid.lastIndexOf("-");
9775        if (idx == -1) {
9776            return packageCid;
9777        }
9778        return packageCid.substring(0, idx);
9779    }
9780
9781    // Utility method used to create code paths based on package name and available index.
9782    private static String getNextCodePath(String oldCodePath, String prefix, String suffix) {
9783        String idxStr = "";
9784        int idx = 1;
9785        // Fall back to default value of idx=1 if prefix is not
9786        // part of oldCodePath
9787        if (oldCodePath != null) {
9788            String subStr = oldCodePath;
9789            // Drop the suffix right away
9790            if (suffix != null && subStr.endsWith(suffix)) {
9791                subStr = subStr.substring(0, subStr.length() - suffix.length());
9792            }
9793            // If oldCodePath already contains prefix find out the
9794            // ending index to either increment or decrement.
9795            int sidx = subStr.lastIndexOf(prefix);
9796            if (sidx != -1) {
9797                subStr = subStr.substring(sidx + prefix.length());
9798                if (subStr != null) {
9799                    if (subStr.startsWith(INSTALL_PACKAGE_SUFFIX)) {
9800                        subStr = subStr.substring(INSTALL_PACKAGE_SUFFIX.length());
9801                    }
9802                    try {
9803                        idx = Integer.parseInt(subStr);
9804                        if (idx <= 1) {
9805                            idx++;
9806                        } else {
9807                            idx--;
9808                        }
9809                    } catch(NumberFormatException e) {
9810                    }
9811                }
9812            }
9813        }
9814        idxStr = INSTALL_PACKAGE_SUFFIX + Integer.toString(idx);
9815        return prefix + idxStr;
9816    }
9817
9818    private File getNextCodePath(String packageName) {
9819        int suffix = 1;
9820        File result;
9821        do {
9822            result = new File(mAppInstallDir, packageName + "-" + suffix);
9823            suffix++;
9824        } while (result.exists());
9825        return result;
9826    }
9827
9828    // Utility method that returns the relative package path with respect
9829    // to the installation directory. Like say for /data/data/com.test-1.apk
9830    // string com.test-1 is returned.
9831    static String deriveCodePathName(String codePath) {
9832        if (codePath == null) {
9833            return null;
9834        }
9835        final File codeFile = new File(codePath);
9836        final String name = codeFile.getName();
9837        if (codeFile.isDirectory()) {
9838            return name;
9839        } else if (name.endsWith(".apk") || name.endsWith(".tmp")) {
9840            final int lastDot = name.lastIndexOf('.');
9841            return name.substring(0, lastDot);
9842        } else {
9843            Slog.w(TAG, "Odd, " + codePath + " doesn't look like an APK");
9844            return null;
9845        }
9846    }
9847
9848    class PackageInstalledInfo {
9849        String name;
9850        int uid;
9851        // The set of users that originally had this package installed.
9852        int[] origUsers;
9853        // The set of users that now have this package installed.
9854        int[] newUsers;
9855        PackageParser.Package pkg;
9856        int returnCode;
9857        String returnMsg;
9858        PackageRemovedInfo removedInfo;
9859
9860        public void setError(int code, String msg) {
9861            returnCode = code;
9862            returnMsg = msg;
9863            Slog.w(TAG, msg);
9864        }
9865
9866        public void setError(String msg, PackageParserException e) {
9867            returnCode = e.error;
9868            returnMsg = ExceptionUtils.getCompleteMessage(msg, e);
9869            Slog.w(TAG, msg, e);
9870        }
9871
9872        public void setError(String msg, PackageManagerException e) {
9873            returnCode = e.error;
9874            returnMsg = ExceptionUtils.getCompleteMessage(msg, e);
9875            Slog.w(TAG, msg, e);
9876        }
9877
9878        // In some error cases we want to convey more info back to the observer
9879        String origPackage;
9880        String origPermission;
9881    }
9882
9883    /*
9884     * Install a non-existing package.
9885     */
9886    private void installNewPackageLI(PackageParser.Package pkg,
9887            int parseFlags, int scanFlags, UserHandle user,
9888            String installerPackageName, PackageInstalledInfo res) {
9889        // Remember this for later, in case we need to rollback this install
9890        String pkgName = pkg.packageName;
9891
9892        if (DEBUG_INSTALL) Slog.d(TAG, "installNewPackageLI: " + pkg);
9893        boolean dataDirExists = getDataPathForPackage(pkg.packageName, 0).exists();
9894        synchronized(mPackages) {
9895            if (mSettings.mRenamedPackages.containsKey(pkgName)) {
9896                // A package with the same name is already installed, though
9897                // it has been renamed to an older name.  The package we
9898                // are trying to install should be installed as an update to
9899                // the existing one, but that has not been requested, so bail.
9900                res.setError(INSTALL_FAILED_ALREADY_EXISTS, "Attempt to re-install " + pkgName
9901                        + " without first uninstalling package running as "
9902                        + mSettings.mRenamedPackages.get(pkgName));
9903                return;
9904            }
9905            if (mPackages.containsKey(pkgName)) {
9906                // Don't allow installation over an existing package with the same name.
9907                res.setError(INSTALL_FAILED_ALREADY_EXISTS, "Attempt to re-install " + pkgName
9908                        + " without first uninstalling.");
9909                return;
9910            }
9911        }
9912
9913        try {
9914            PackageParser.Package newPackage = scanPackageLI(pkg, parseFlags, scanFlags,
9915                    System.currentTimeMillis(), user);
9916
9917            updateSettingsLI(newPackage, installerPackageName, null, null, res);
9918            // delete the partially installed application. the data directory will have to be
9919            // restored if it was already existing
9920            if (res.returnCode != PackageManager.INSTALL_SUCCEEDED) {
9921                // remove package from internal structures.  Note that we want deletePackageX to
9922                // delete the package data and cache directories that it created in
9923                // scanPackageLocked, unless those directories existed before we even tried to
9924                // install.
9925                deletePackageLI(pkgName, UserHandle.ALL, false, null, null,
9926                        dataDirExists ? PackageManager.DELETE_KEEP_DATA : 0,
9927                                res.removedInfo, true);
9928            }
9929
9930        } catch (PackageManagerException e) {
9931            res.setError("Package couldn't be installed in " + pkg.codePath, e);
9932        }
9933    }
9934
9935    private boolean checkUpgradeKeySetLP(PackageSetting oldPS, PackageParser.Package newPkg) {
9936        // Upgrade keysets are being used.  Determine if new package has a superset of the
9937        // required keys.
9938        long[] upgradeKeySets = oldPS.keySetData.getUpgradeKeySets();
9939        KeySetManagerService ksms = mSettings.mKeySetManagerService;
9940        for (int i = 0; i < upgradeKeySets.length; i++) {
9941            Set<PublicKey> upgradeSet = ksms.getPublicKeysFromKeySetLPr(upgradeKeySets[i]);
9942            if (newPkg.mSigningKeys.containsAll(upgradeSet)) {
9943                return true;
9944            }
9945        }
9946        return false;
9947    }
9948
9949    private void replacePackageLI(PackageParser.Package pkg,
9950            int parseFlags, int scanFlags, UserHandle user,
9951            String installerPackageName, PackageInstalledInfo res) {
9952        PackageParser.Package oldPackage;
9953        String pkgName = pkg.packageName;
9954        int[] allUsers;
9955        boolean[] perUserInstalled;
9956
9957        // First find the old package info and check signatures
9958        synchronized(mPackages) {
9959            oldPackage = mPackages.get(pkgName);
9960            if (DEBUG_INSTALL) Slog.d(TAG, "replacePackageLI: new=" + pkg + ", old=" + oldPackage);
9961            PackageSetting ps = mSettings.mPackages.get(pkgName);
9962            if (ps == null || !ps.keySetData.isUsingUpgradeKeySets() || ps.sharedUser != null) {
9963                // default to original signature matching
9964                if (compareSignatures(oldPackage.mSignatures, pkg.mSignatures)
9965                    != PackageManager.SIGNATURE_MATCH) {
9966                    res.setError(INSTALL_FAILED_UPDATE_INCOMPATIBLE,
9967                            "New package has a different signature: " + pkgName);
9968                    return;
9969                }
9970            } else {
9971                if(!checkUpgradeKeySetLP(ps, pkg)) {
9972                    res.setError(INSTALL_FAILED_UPDATE_INCOMPATIBLE,
9973                            "New package not signed by keys specified by upgrade-keysets: "
9974                            + pkgName);
9975                    return;
9976                }
9977            }
9978
9979            // In case of rollback, remember per-user/profile install state
9980            allUsers = sUserManager.getUserIds();
9981            perUserInstalled = new boolean[allUsers.length];
9982            for (int i = 0; i < allUsers.length; i++) {
9983                perUserInstalled[i] = ps != null ? ps.getInstalled(allUsers[i]) : false;
9984            }
9985        }
9986
9987        boolean sysPkg = (isSystemApp(oldPackage));
9988        if (sysPkg) {
9989            replaceSystemPackageLI(oldPackage, pkg, parseFlags, scanFlags,
9990                    user, allUsers, perUserInstalled, installerPackageName, res);
9991        } else {
9992            replaceNonSystemPackageLI(oldPackage, pkg, parseFlags, scanFlags,
9993                    user, allUsers, perUserInstalled, installerPackageName, res);
9994        }
9995    }
9996
9997    private void replaceNonSystemPackageLI(PackageParser.Package deletedPackage,
9998            PackageParser.Package pkg, int parseFlags, int scanFlags, UserHandle user,
9999            int[] allUsers, boolean[] perUserInstalled,
10000            String installerPackageName, PackageInstalledInfo res) {
10001        String pkgName = deletedPackage.packageName;
10002        boolean deletedPkg = true;
10003        boolean updatedSettings = false;
10004
10005        if (DEBUG_INSTALL) Slog.d(TAG, "replaceNonSystemPackageLI: new=" + pkg + ", old="
10006                + deletedPackage);
10007        long origUpdateTime;
10008        if (pkg.mExtras != null) {
10009            origUpdateTime = ((PackageSetting)pkg.mExtras).lastUpdateTime;
10010        } else {
10011            origUpdateTime = 0;
10012        }
10013
10014        // First delete the existing package while retaining the data directory
10015        if (!deletePackageLI(pkgName, null, true, null, null, PackageManager.DELETE_KEEP_DATA,
10016                res.removedInfo, true)) {
10017            // If the existing package wasn't successfully deleted
10018            res.setError(INSTALL_FAILED_REPLACE_COULDNT_DELETE, "replaceNonSystemPackageLI");
10019            deletedPkg = false;
10020        } else {
10021            // Successfully deleted the old package; proceed with replace.
10022
10023            // If deleted package lived in a container, give users a chance to
10024            // relinquish resources before killing.
10025            if (deletedPackage.isForwardLocked() || isExternal(deletedPackage)) {
10026                if (DEBUG_INSTALL) {
10027                    Slog.i(TAG, "upgrading pkg " + deletedPackage + " is ASEC-hosted -> UNAVAILABLE");
10028                }
10029                final int[] uidArray = new int[] { deletedPackage.applicationInfo.uid };
10030                final ArrayList<String> pkgList = new ArrayList<String>(1);
10031                pkgList.add(deletedPackage.applicationInfo.packageName);
10032                sendResourcesChangedBroadcast(false, true, pkgList, uidArray, null);
10033            }
10034
10035            deleteCodeCacheDirsLI(pkgName);
10036            try {
10037                final PackageParser.Package newPackage = scanPackageLI(pkg, parseFlags,
10038                        scanFlags | SCAN_UPDATE_TIME, System.currentTimeMillis(), user);
10039                updateSettingsLI(newPackage, installerPackageName, allUsers, perUserInstalled, res);
10040                updatedSettings = true;
10041            } catch (PackageManagerException e) {
10042                res.setError("Package couldn't be installed in " + pkg.codePath, e);
10043            }
10044        }
10045
10046        if (res.returnCode != PackageManager.INSTALL_SUCCEEDED) {
10047            // remove package from internal structures.  Note that we want deletePackageX to
10048            // delete the package data and cache directories that it created in
10049            // scanPackageLocked, unless those directories existed before we even tried to
10050            // install.
10051            if(updatedSettings) {
10052                if (DEBUG_INSTALL) Slog.d(TAG, "Install failed, rolling pack: " + pkgName);
10053                deletePackageLI(
10054                        pkgName, null, true, allUsers, perUserInstalled,
10055                        PackageManager.DELETE_KEEP_DATA,
10056                                res.removedInfo, true);
10057            }
10058            // Since we failed to install the new package we need to restore the old
10059            // package that we deleted.
10060            if (deletedPkg) {
10061                if (DEBUG_INSTALL) Slog.d(TAG, "Install failed, reinstalling: " + deletedPackage);
10062                File restoreFile = new File(deletedPackage.codePath);
10063                // Parse old package
10064                boolean oldOnSd = isExternal(deletedPackage);
10065                int oldParseFlags  = mDefParseFlags | PackageParser.PARSE_CHATTY |
10066                        (deletedPackage.isForwardLocked() ? PackageParser.PARSE_FORWARD_LOCK : 0) |
10067                        (oldOnSd ? PackageParser.PARSE_ON_SDCARD : 0);
10068                int oldScanFlags = SCAN_UPDATE_SIGNATURE | SCAN_UPDATE_TIME;
10069                try {
10070                    scanPackageLI(restoreFile, oldParseFlags, oldScanFlags, origUpdateTime, null);
10071                } catch (PackageManagerException e) {
10072                    Slog.e(TAG, "Failed to restore package : " + pkgName + " after failed upgrade: "
10073                            + e.getMessage());
10074                    return;
10075                }
10076                // Restore of old package succeeded. Update permissions.
10077                // writer
10078                synchronized (mPackages) {
10079                    updatePermissionsLPw(deletedPackage.packageName, deletedPackage,
10080                            UPDATE_PERMISSIONS_ALL);
10081                    // can downgrade to reader
10082                    mSettings.writeLPr();
10083                }
10084                Slog.i(TAG, "Successfully restored package : " + pkgName + " after failed upgrade");
10085            }
10086        }
10087    }
10088
10089    private void replaceSystemPackageLI(PackageParser.Package deletedPackage,
10090            PackageParser.Package pkg, int parseFlags, int scanFlags, UserHandle user,
10091            int[] allUsers, boolean[] perUserInstalled,
10092            String installerPackageName, PackageInstalledInfo res) {
10093        if (DEBUG_INSTALL) Slog.d(TAG, "replaceSystemPackageLI: new=" + pkg
10094                + ", old=" + deletedPackage);
10095        boolean disabledSystem = false;
10096        boolean updatedSettings = false;
10097        parseFlags |= PackageParser.PARSE_IS_SYSTEM;
10098        if ((deletedPackage.applicationInfo.privateFlags&ApplicationInfo.PRIVATE_FLAG_PRIVILEGED)
10099                != 0) {
10100            parseFlags |= PackageParser.PARSE_IS_PRIVILEGED;
10101        }
10102        String packageName = deletedPackage.packageName;
10103        if (packageName == null) {
10104            res.setError(INSTALL_FAILED_REPLACE_COULDNT_DELETE,
10105                    "Attempt to delete null packageName.");
10106            return;
10107        }
10108        PackageParser.Package oldPkg;
10109        PackageSetting oldPkgSetting;
10110        // reader
10111        synchronized (mPackages) {
10112            oldPkg = mPackages.get(packageName);
10113            oldPkgSetting = mSettings.mPackages.get(packageName);
10114            if((oldPkg == null) || (oldPkg.applicationInfo == null) ||
10115                    (oldPkgSetting == null)) {
10116                res.setError(INSTALL_FAILED_REPLACE_COULDNT_DELETE,
10117                        "Couldn't find package:" + packageName + " information");
10118                return;
10119            }
10120        }
10121
10122        killApplication(packageName, oldPkg.applicationInfo.uid, "replace sys pkg");
10123
10124        res.removedInfo.uid = oldPkg.applicationInfo.uid;
10125        res.removedInfo.removedPackage = packageName;
10126        // Remove existing system package
10127        removePackageLI(oldPkgSetting, true);
10128        // writer
10129        synchronized (mPackages) {
10130            disabledSystem = mSettings.disableSystemPackageLPw(packageName);
10131            if (!disabledSystem && deletedPackage != null) {
10132                // We didn't need to disable the .apk as a current system package,
10133                // which means we are replacing another update that is already
10134                // installed.  We need to make sure to delete the older one's .apk.
10135                res.removedInfo.args = createInstallArgsForExisting(0,
10136                        deletedPackage.applicationInfo.getCodePath(),
10137                        deletedPackage.applicationInfo.getResourcePath(),
10138                        deletedPackage.applicationInfo.nativeLibraryRootDir,
10139                        getAppDexInstructionSets(deletedPackage.applicationInfo));
10140            } else {
10141                res.removedInfo.args = null;
10142            }
10143        }
10144
10145        // Successfully disabled the old package. Now proceed with re-installation
10146        deleteCodeCacheDirsLI(packageName);
10147
10148        res.returnCode = PackageManager.INSTALL_SUCCEEDED;
10149        pkg.applicationInfo.flags |= ApplicationInfo.FLAG_UPDATED_SYSTEM_APP;
10150
10151        PackageParser.Package newPackage = null;
10152        try {
10153            newPackage = scanPackageLI(pkg, parseFlags, scanFlags, 0, user);
10154            if (newPackage.mExtras != null) {
10155                final PackageSetting newPkgSetting = (PackageSetting) newPackage.mExtras;
10156                newPkgSetting.firstInstallTime = oldPkgSetting.firstInstallTime;
10157                newPkgSetting.lastUpdateTime = System.currentTimeMillis();
10158
10159                // is the update attempting to change shared user? that isn't going to work...
10160                if (oldPkgSetting.sharedUser != newPkgSetting.sharedUser) {
10161                    res.setError(INSTALL_FAILED_SHARED_USER_INCOMPATIBLE,
10162                            "Forbidding shared user change from " + oldPkgSetting.sharedUser
10163                            + " to " + newPkgSetting.sharedUser);
10164                    updatedSettings = true;
10165                }
10166            }
10167
10168            if (res.returnCode == PackageManager.INSTALL_SUCCEEDED) {
10169                updateSettingsLI(newPackage, installerPackageName, allUsers, perUserInstalled, res);
10170                updatedSettings = true;
10171            }
10172
10173        } catch (PackageManagerException e) {
10174            res.setError("Package couldn't be installed in " + pkg.codePath, e);
10175        }
10176
10177        if (res.returnCode != PackageManager.INSTALL_SUCCEEDED) {
10178            // Re installation failed. Restore old information
10179            // Remove new pkg information
10180            if (newPackage != null) {
10181                removeInstalledPackageLI(newPackage, true);
10182            }
10183            // Add back the old system package
10184            try {
10185                scanPackageLI(oldPkg, parseFlags, SCAN_UPDATE_SIGNATURE, 0, user);
10186            } catch (PackageManagerException e) {
10187                Slog.e(TAG, "Failed to restore original package: " + e.getMessage());
10188            }
10189            // Restore the old system information in Settings
10190            synchronized (mPackages) {
10191                if (disabledSystem) {
10192                    mSettings.enableSystemPackageLPw(packageName);
10193                }
10194                if (updatedSettings) {
10195                    mSettings.setInstallerPackageName(packageName,
10196                            oldPkgSetting.installerPackageName);
10197                }
10198                mSettings.writeLPr();
10199            }
10200        }
10201    }
10202
10203    private void updateSettingsLI(PackageParser.Package newPackage, String installerPackageName,
10204            int[] allUsers, boolean[] perUserInstalled,
10205            PackageInstalledInfo res) {
10206        String pkgName = newPackage.packageName;
10207        synchronized (mPackages) {
10208            //write settings. the installStatus will be incomplete at this stage.
10209            //note that the new package setting would have already been
10210            //added to mPackages. It hasn't been persisted yet.
10211            mSettings.setInstallStatus(pkgName, PackageSettingBase.PKG_INSTALL_INCOMPLETE);
10212            mSettings.writeLPr();
10213        }
10214
10215        if (DEBUG_INSTALL) Slog.d(TAG, "New package installed in " + newPackage.codePath);
10216
10217        synchronized (mPackages) {
10218            updatePermissionsLPw(newPackage.packageName, newPackage,
10219                    UPDATE_PERMISSIONS_REPLACE_PKG | (newPackage.permissions.size() > 0
10220                            ? UPDATE_PERMISSIONS_ALL : 0));
10221            // For system-bundled packages, we assume that installing an upgraded version
10222            // of the package implies that the user actually wants to run that new code,
10223            // so we enable the package.
10224            if (isSystemApp(newPackage)) {
10225                // NB: implicit assumption that system package upgrades apply to all users
10226                if (DEBUG_INSTALL) {
10227                    Slog.d(TAG, "Implicitly enabling system package on upgrade: " + pkgName);
10228                }
10229                PackageSetting ps = mSettings.mPackages.get(pkgName);
10230                if (ps != null) {
10231                    if (res.origUsers != null) {
10232                        for (int userHandle : res.origUsers) {
10233                            ps.setEnabled(COMPONENT_ENABLED_STATE_DEFAULT,
10234                                    userHandle, installerPackageName);
10235                        }
10236                    }
10237                    // Also convey the prior install/uninstall state
10238                    if (allUsers != null && perUserInstalled != null) {
10239                        for (int i = 0; i < allUsers.length; i++) {
10240                            if (DEBUG_INSTALL) {
10241                                Slog.d(TAG, "    user " + allUsers[i]
10242                                        + " => " + perUserInstalled[i]);
10243                            }
10244                            ps.setInstalled(perUserInstalled[i], allUsers[i]);
10245                        }
10246                        // these install state changes will be persisted in the
10247                        // upcoming call to mSettings.writeLPr().
10248                    }
10249                }
10250            }
10251            res.name = pkgName;
10252            res.uid = newPackage.applicationInfo.uid;
10253            res.pkg = newPackage;
10254            mSettings.setInstallStatus(pkgName, PackageSettingBase.PKG_INSTALL_COMPLETE);
10255            mSettings.setInstallerPackageName(pkgName, installerPackageName);
10256            res.returnCode = PackageManager.INSTALL_SUCCEEDED;
10257            //to update install status
10258            mSettings.writeLPr();
10259        }
10260    }
10261
10262    private void installPackageLI(InstallArgs args, PackageInstalledInfo res) {
10263        final int installFlags = args.installFlags;
10264        String installerPackageName = args.installerPackageName;
10265        File tmpPackageFile = new File(args.getCodePath());
10266        boolean forwardLocked = ((installFlags & PackageManager.INSTALL_FORWARD_LOCK) != 0);
10267        boolean onSd = ((installFlags & PackageManager.INSTALL_EXTERNAL) != 0);
10268        boolean replace = false;
10269        final int scanFlags = SCAN_NEW_INSTALL | SCAN_FORCE_DEX | SCAN_UPDATE_SIGNATURE;
10270        // Result object to be returned
10271        res.returnCode = PackageManager.INSTALL_SUCCEEDED;
10272
10273        if (DEBUG_INSTALL) Slog.d(TAG, "installPackageLI: path=" + tmpPackageFile);
10274        // Retrieve PackageSettings and parse package
10275        final int parseFlags = mDefParseFlags | PackageParser.PARSE_CHATTY
10276                | (forwardLocked ? PackageParser.PARSE_FORWARD_LOCK : 0)
10277                | (onSd ? PackageParser.PARSE_ON_SDCARD : 0);
10278        PackageParser pp = new PackageParser();
10279        pp.setSeparateProcesses(mSeparateProcesses);
10280        pp.setDisplayMetrics(mMetrics);
10281
10282        final PackageParser.Package pkg;
10283        try {
10284            pkg = pp.parsePackage(tmpPackageFile, parseFlags);
10285        } catch (PackageParserException e) {
10286            res.setError("Failed parse during installPackageLI", e);
10287            return;
10288        }
10289
10290        // Mark that we have an install time CPU ABI override.
10291        pkg.cpuAbiOverride = args.abiOverride;
10292
10293        String pkgName = res.name = pkg.packageName;
10294        if ((pkg.applicationInfo.flags&ApplicationInfo.FLAG_TEST_ONLY) != 0) {
10295            if ((installFlags & PackageManager.INSTALL_ALLOW_TEST) == 0) {
10296                res.setError(INSTALL_FAILED_TEST_ONLY, "installPackageLI");
10297                return;
10298            }
10299        }
10300
10301        try {
10302            pp.collectCertificates(pkg, parseFlags);
10303            pp.collectManifestDigest(pkg);
10304        } catch (PackageParserException e) {
10305            res.setError("Failed collect during installPackageLI", e);
10306            return;
10307        }
10308
10309        /* If the installer passed in a manifest digest, compare it now. */
10310        if (args.manifestDigest != null) {
10311            if (DEBUG_INSTALL) {
10312                final String parsedManifest = pkg.manifestDigest == null ? "null"
10313                        : pkg.manifestDigest.toString();
10314                Slog.d(TAG, "Comparing manifests: " + args.manifestDigest.toString() + " vs. "
10315                        + parsedManifest);
10316            }
10317
10318            if (!args.manifestDigest.equals(pkg.manifestDigest)) {
10319                res.setError(INSTALL_FAILED_PACKAGE_CHANGED, "Manifest digest changed");
10320                return;
10321            }
10322        } else if (DEBUG_INSTALL) {
10323            final String parsedManifest = pkg.manifestDigest == null
10324                    ? "null" : pkg.manifestDigest.toString();
10325            Slog.d(TAG, "manifestDigest was not present, but parser got: " + parsedManifest);
10326        }
10327
10328        // Get rid of all references to package scan path via parser.
10329        pp = null;
10330        String oldCodePath = null;
10331        boolean systemApp = false;
10332        synchronized (mPackages) {
10333            // Check if installing already existing package
10334            if ((installFlags & PackageManager.INSTALL_REPLACE_EXISTING) != 0) {
10335                String oldName = mSettings.mRenamedPackages.get(pkgName);
10336                if (pkg.mOriginalPackages != null
10337                        && pkg.mOriginalPackages.contains(oldName)
10338                        && mPackages.containsKey(oldName)) {
10339                    // This package is derived from an original package,
10340                    // and this device has been updating from that original
10341                    // name.  We must continue using the original name, so
10342                    // rename the new package here.
10343                    pkg.setPackageName(oldName);
10344                    pkgName = pkg.packageName;
10345                    replace = true;
10346                    if (DEBUG_INSTALL) Slog.d(TAG, "Replacing existing renamed package: oldName="
10347                            + oldName + " pkgName=" + pkgName);
10348                } else if (mPackages.containsKey(pkgName)) {
10349                    // This package, under its official name, already exists
10350                    // on the device; we should replace it.
10351                    replace = true;
10352                    if (DEBUG_INSTALL) Slog.d(TAG, "Replace existing pacakge: " + pkgName);
10353                }
10354            }
10355
10356            PackageSetting ps = mSettings.mPackages.get(pkgName);
10357            if (ps != null) {
10358                if (DEBUG_INSTALL) Slog.d(TAG, "Existing package: " + ps);
10359
10360                // Quick sanity check that we're signed correctly if updating;
10361                // we'll check this again later when scanning, but we want to
10362                // bail early here before tripping over redefined permissions.
10363                if (!ps.keySetData.isUsingUpgradeKeySets() || ps.sharedUser != null) {
10364                    try {
10365                        verifySignaturesLP(ps, pkg);
10366                    } catch (PackageManagerException e) {
10367                        res.setError(e.error, e.getMessage());
10368                        return;
10369                    }
10370                } else {
10371                    if (!checkUpgradeKeySetLP(ps, pkg)) {
10372                        res.setError(INSTALL_FAILED_UPDATE_INCOMPATIBLE, "Package "
10373                                + pkg.packageName + " upgrade keys do not match the "
10374                                + "previously installed version");
10375                        return;
10376                    }
10377                }
10378
10379                oldCodePath = mSettings.mPackages.get(pkgName).codePathString;
10380                if (ps.pkg != null && ps.pkg.applicationInfo != null) {
10381                    systemApp = (ps.pkg.applicationInfo.flags &
10382                            ApplicationInfo.FLAG_SYSTEM) != 0;
10383                }
10384                res.origUsers = ps.queryInstalledUsers(sUserManager.getUserIds(), true);
10385            }
10386
10387            // Check whether the newly-scanned package wants to define an already-defined perm
10388            int N = pkg.permissions.size();
10389            for (int i = N-1; i >= 0; i--) {
10390                PackageParser.Permission perm = pkg.permissions.get(i);
10391                BasePermission bp = mSettings.mPermissions.get(perm.info.name);
10392                if (bp != null) {
10393                    // If the defining package is signed with our cert, it's okay.  This
10394                    // also includes the "updating the same package" case, of course.
10395                    // "updating same package" could also involve key-rotation.
10396                    final boolean sigsOk;
10397                    if (!bp.sourcePackage.equals(pkg.packageName)
10398                            || !(bp.packageSetting instanceof PackageSetting)
10399                            || !bp.packageSetting.keySetData.isUsingUpgradeKeySets()
10400                            || ((PackageSetting) bp.packageSetting).sharedUser != null) {
10401                        sigsOk = compareSignatures(bp.packageSetting.signatures.mSignatures,
10402                                pkg.mSignatures) == PackageManager.SIGNATURE_MATCH;
10403                    } else {
10404                        sigsOk = checkUpgradeKeySetLP((PackageSetting) bp.packageSetting, pkg);
10405                    }
10406                    if (!sigsOk) {
10407                        // If the owning package is the system itself, we log but allow
10408                        // install to proceed; we fail the install on all other permission
10409                        // redefinitions.
10410                        if (!bp.sourcePackage.equals("android")) {
10411                            res.setError(INSTALL_FAILED_DUPLICATE_PERMISSION, "Package "
10412                                    + pkg.packageName + " attempting to redeclare permission "
10413                                    + perm.info.name + " already owned by " + bp.sourcePackage);
10414                            res.origPermission = perm.info.name;
10415                            res.origPackage = bp.sourcePackage;
10416                            return;
10417                        } else {
10418                            Slog.w(TAG, "Package " + pkg.packageName
10419                                    + " attempting to redeclare system permission "
10420                                    + perm.info.name + "; ignoring new declaration");
10421                            pkg.permissions.remove(i);
10422                        }
10423                    }
10424                }
10425            }
10426
10427        }
10428
10429        if (systemApp && onSd) {
10430            // Disable updates to system apps on sdcard
10431            res.setError(INSTALL_FAILED_INVALID_INSTALL_LOCATION,
10432                    "Cannot install updates to system apps on sdcard");
10433            return;
10434        }
10435
10436        // Run dexopt before old package gets removed, to minimize time when app is not available
10437        int result = mPackageDexOptimizer
10438                .performDexOpt(pkg, null /* instruction sets */, true /* forceDex */,
10439                        false /* defer */, false /* inclDependencies */);
10440        if (result == PackageDexOptimizer.DEX_OPT_FAILED) {
10441            res.setError(INSTALL_FAILED_DEXOPT, "Dexopt failed for " + pkg.codePath);
10442            return;
10443        }
10444
10445        if (!args.doRename(res.returnCode, pkg, oldCodePath)) {
10446            res.setError(INSTALL_FAILED_INSUFFICIENT_STORAGE, "Failed rename");
10447            return;
10448        }
10449
10450        if (replace) {
10451            // Call replacePackageLI with SCAN_NO_DEX, since we already made dexopt
10452            replacePackageLI(pkg, parseFlags, scanFlags | SCAN_REPLACING | SCAN_NO_DEX, args.user,
10453                    installerPackageName, res);
10454        } else {
10455            installNewPackageLI(pkg, parseFlags, scanFlags | SCAN_DELETE_DATA_ON_FAILURES,
10456                    args.user, installerPackageName, res);
10457        }
10458        synchronized (mPackages) {
10459            final PackageSetting ps = mSettings.mPackages.get(pkgName);
10460            if (ps != null) {
10461                res.newUsers = ps.queryInstalledUsers(sUserManager.getUserIds(), true);
10462            }
10463        }
10464    }
10465
10466    private static boolean isMultiArch(PackageSetting ps) {
10467        return (ps.pkgFlags & ApplicationInfo.FLAG_MULTIARCH) != 0;
10468    }
10469
10470    private static boolean isMultiArch(ApplicationInfo info) {
10471        return (info.flags & ApplicationInfo.FLAG_MULTIARCH) != 0;
10472    }
10473
10474    private static boolean isExternal(PackageParser.Package pkg) {
10475        return (pkg.applicationInfo.flags & ApplicationInfo.FLAG_EXTERNAL_STORAGE) != 0;
10476    }
10477
10478    private static boolean isExternal(PackageSetting ps) {
10479        return (ps.pkgFlags & ApplicationInfo.FLAG_EXTERNAL_STORAGE) != 0;
10480    }
10481
10482    private static boolean isExternal(ApplicationInfo info) {
10483        return (info.flags & ApplicationInfo.FLAG_EXTERNAL_STORAGE) != 0;
10484    }
10485
10486    private static boolean isSystemApp(PackageParser.Package pkg) {
10487        return (pkg.applicationInfo.flags & ApplicationInfo.FLAG_SYSTEM) != 0;
10488    }
10489
10490    private static boolean isPrivilegedApp(PackageParser.Package pkg) {
10491        return (pkg.applicationInfo.privateFlags & ApplicationInfo.PRIVATE_FLAG_PRIVILEGED) != 0;
10492    }
10493
10494    private static boolean isSystemApp(PackageSetting ps) {
10495        return (ps.pkgFlags & ApplicationInfo.FLAG_SYSTEM) != 0;
10496    }
10497
10498    private static boolean isUpdatedSystemApp(PackageSetting ps) {
10499        return (ps.pkgFlags & ApplicationInfo.FLAG_UPDATED_SYSTEM_APP) != 0;
10500    }
10501
10502    private int packageFlagsToInstallFlags(PackageSetting ps) {
10503        int installFlags = 0;
10504        if (isExternal(ps)) {
10505            installFlags |= PackageManager.INSTALL_EXTERNAL;
10506        }
10507        if (ps.isForwardLocked()) {
10508            installFlags |= PackageManager.INSTALL_FORWARD_LOCK;
10509        }
10510        return installFlags;
10511    }
10512
10513    private void deleteTempPackageFiles() {
10514        final FilenameFilter filter = new FilenameFilter() {
10515            public boolean accept(File dir, String name) {
10516                return name.startsWith("vmdl") && name.endsWith(".tmp");
10517            }
10518        };
10519        for (File file : mDrmAppPrivateInstallDir.listFiles(filter)) {
10520            file.delete();
10521        }
10522    }
10523
10524    @Override
10525    public void deletePackageAsUser(String packageName, IPackageDeleteObserver observer, int userId,
10526            int flags) {
10527        deletePackage(packageName, new LegacyPackageDeleteObserver(observer).getBinder(), userId,
10528                flags);
10529    }
10530
10531    @Override
10532    public void deletePackage(final String packageName,
10533            final IPackageDeleteObserver2 observer, final int userId, final int flags) {
10534        mContext.enforceCallingOrSelfPermission(
10535                android.Manifest.permission.DELETE_PACKAGES, null);
10536        final int uid = Binder.getCallingUid();
10537        if (UserHandle.getUserId(uid) != userId) {
10538            mContext.enforceCallingPermission(
10539                    android.Manifest.permission.INTERACT_ACROSS_USERS_FULL,
10540                    "deletePackage for user " + userId);
10541        }
10542        if (isUserRestricted(userId, UserManager.DISALLOW_UNINSTALL_APPS)) {
10543            try {
10544                observer.onPackageDeleted(packageName,
10545                        PackageManager.DELETE_FAILED_USER_RESTRICTED, null);
10546            } catch (RemoteException re) {
10547            }
10548            return;
10549        }
10550
10551        boolean uninstallBlocked = false;
10552        if ((flags & PackageManager.DELETE_ALL_USERS) != 0) {
10553            int[] users = sUserManager.getUserIds();
10554            for (int i = 0; i < users.length; ++i) {
10555                if (getBlockUninstallForUser(packageName, users[i])) {
10556                    uninstallBlocked = true;
10557                    break;
10558                }
10559            }
10560        } else {
10561            uninstallBlocked = getBlockUninstallForUser(packageName, userId);
10562        }
10563        if (uninstallBlocked) {
10564            try {
10565                observer.onPackageDeleted(packageName, PackageManager.DELETE_FAILED_OWNER_BLOCKED,
10566                        null);
10567            } catch (RemoteException re) {
10568            }
10569            return;
10570        }
10571
10572        if (DEBUG_REMOVE) {
10573            Slog.d(TAG, "deletePackageAsUser: pkg=" + packageName + " user=" + userId);
10574        }
10575        // Queue up an async operation since the package deletion may take a little while.
10576        mHandler.post(new Runnable() {
10577            public void run() {
10578                mHandler.removeCallbacks(this);
10579                final int returnCode = deletePackageX(packageName, userId, flags);
10580                if (observer != null) {
10581                    try {
10582                        observer.onPackageDeleted(packageName, returnCode, null);
10583                    } catch (RemoteException e) {
10584                        Log.i(TAG, "Observer no longer exists.");
10585                    } //end catch
10586                } //end if
10587            } //end run
10588        });
10589    }
10590
10591    private boolean isPackageDeviceAdmin(String packageName, int userId) {
10592        IDevicePolicyManager dpm = IDevicePolicyManager.Stub.asInterface(
10593                ServiceManager.getService(Context.DEVICE_POLICY_SERVICE));
10594        try {
10595            if (dpm != null) {
10596                if (dpm.isDeviceOwner(packageName)) {
10597                    return true;
10598                }
10599                int[] users;
10600                if (userId == UserHandle.USER_ALL) {
10601                    users = sUserManager.getUserIds();
10602                } else {
10603                    users = new int[]{userId};
10604                }
10605                for (int i = 0; i < users.length; ++i) {
10606                    if (dpm.packageHasActiveAdmins(packageName, users[i])) {
10607                        return true;
10608                    }
10609                }
10610            }
10611        } catch (RemoteException e) {
10612        }
10613        return false;
10614    }
10615
10616    /**
10617     *  This method is an internal method that could be get invoked either
10618     *  to delete an installed package or to clean up a failed installation.
10619     *  After deleting an installed package, a broadcast is sent to notify any
10620     *  listeners that the package has been installed. For cleaning up a failed
10621     *  installation, the broadcast is not necessary since the package's
10622     *  installation wouldn't have sent the initial broadcast either
10623     *  The key steps in deleting a package are
10624     *  deleting the package information in internal structures like mPackages,
10625     *  deleting the packages base directories through installd
10626     *  updating mSettings to reflect current status
10627     *  persisting settings for later use
10628     *  sending a broadcast if necessary
10629     */
10630    private int deletePackageX(String packageName, int userId, int flags) {
10631        final PackageRemovedInfo info = new PackageRemovedInfo();
10632        final boolean res;
10633
10634        final UserHandle removeForUser = (flags & PackageManager.DELETE_ALL_USERS) != 0
10635                ? UserHandle.ALL : new UserHandle(userId);
10636
10637        if (isPackageDeviceAdmin(packageName, removeForUser.getIdentifier())) {
10638            Slog.w(TAG, "Not removing package " + packageName + ": has active device admin");
10639            return PackageManager.DELETE_FAILED_DEVICE_POLICY_MANAGER;
10640        }
10641
10642        boolean removedForAllUsers = false;
10643        boolean systemUpdate = false;
10644
10645        // for the uninstall-updates case and restricted profiles, remember the per-
10646        // userhandle installed state
10647        int[] allUsers;
10648        boolean[] perUserInstalled;
10649        synchronized (mPackages) {
10650            PackageSetting ps = mSettings.mPackages.get(packageName);
10651            allUsers = sUserManager.getUserIds();
10652            perUserInstalled = new boolean[allUsers.length];
10653            for (int i = 0; i < allUsers.length; i++) {
10654                perUserInstalled[i] = ps != null ? ps.getInstalled(allUsers[i]) : false;
10655            }
10656        }
10657
10658        synchronized (mInstallLock) {
10659            if (DEBUG_REMOVE) Slog.d(TAG, "deletePackageX: pkg=" + packageName + " user=" + userId);
10660            res = deletePackageLI(packageName, removeForUser,
10661                    true, allUsers, perUserInstalled,
10662                    flags | REMOVE_CHATTY, info, true);
10663            systemUpdate = info.isRemovedPackageSystemUpdate;
10664            if (res && !systemUpdate && mPackages.get(packageName) == null) {
10665                removedForAllUsers = true;
10666            }
10667            if (DEBUG_REMOVE) Slog.d(TAG, "delete res: systemUpdate=" + systemUpdate
10668                    + " removedForAllUsers=" + removedForAllUsers);
10669        }
10670
10671        if (res) {
10672            info.sendBroadcast(true, systemUpdate, removedForAllUsers);
10673
10674            // If the removed package was a system update, the old system package
10675            // was re-enabled; we need to broadcast this information
10676            if (systemUpdate) {
10677                Bundle extras = new Bundle(1);
10678                extras.putInt(Intent.EXTRA_UID, info.removedAppId >= 0
10679                        ? info.removedAppId : info.uid);
10680                extras.putBoolean(Intent.EXTRA_REPLACING, true);
10681
10682                sendPackageBroadcast(Intent.ACTION_PACKAGE_ADDED, packageName,
10683                        extras, null, null, null);
10684                sendPackageBroadcast(Intent.ACTION_PACKAGE_REPLACED, packageName,
10685                        extras, null, null, null);
10686                sendPackageBroadcast(Intent.ACTION_MY_PACKAGE_REPLACED, null,
10687                        null, packageName, null, null);
10688            }
10689        }
10690        // Force a gc here.
10691        Runtime.getRuntime().gc();
10692        // Delete the resources here after sending the broadcast to let
10693        // other processes clean up before deleting resources.
10694        if (info.args != null) {
10695            synchronized (mInstallLock) {
10696                info.args.doPostDeleteLI(true);
10697            }
10698        }
10699
10700        return res ? PackageManager.DELETE_SUCCEEDED : PackageManager.DELETE_FAILED_INTERNAL_ERROR;
10701    }
10702
10703    static class PackageRemovedInfo {
10704        String removedPackage;
10705        int uid = -1;
10706        int removedAppId = -1;
10707        int[] removedUsers = null;
10708        boolean isRemovedPackageSystemUpdate = false;
10709        // Clean up resources deleted packages.
10710        InstallArgs args = null;
10711
10712        void sendBroadcast(boolean fullRemove, boolean replacing, boolean removedForAllUsers) {
10713            Bundle extras = new Bundle(1);
10714            extras.putInt(Intent.EXTRA_UID, removedAppId >= 0 ? removedAppId : uid);
10715            extras.putBoolean(Intent.EXTRA_DATA_REMOVED, fullRemove);
10716            if (replacing) {
10717                extras.putBoolean(Intent.EXTRA_REPLACING, true);
10718            }
10719            extras.putBoolean(Intent.EXTRA_REMOVED_FOR_ALL_USERS, removedForAllUsers);
10720            if (removedPackage != null) {
10721                sendPackageBroadcast(Intent.ACTION_PACKAGE_REMOVED, removedPackage,
10722                        extras, null, null, removedUsers);
10723                if (fullRemove && !replacing) {
10724                    sendPackageBroadcast(Intent.ACTION_PACKAGE_FULLY_REMOVED, removedPackage,
10725                            extras, null, null, removedUsers);
10726                }
10727            }
10728            if (removedAppId >= 0) {
10729                sendPackageBroadcast(Intent.ACTION_UID_REMOVED, null, extras, null, null,
10730                        removedUsers);
10731            }
10732        }
10733    }
10734
10735    /*
10736     * This method deletes the package from internal data structures. If the DONT_DELETE_DATA
10737     * flag is not set, the data directory is removed as well.
10738     * make sure this flag is set for partially installed apps. If not its meaningless to
10739     * delete a partially installed application.
10740     */
10741    private void removePackageDataLI(PackageSetting ps,
10742            int[] allUserHandles, boolean[] perUserInstalled,
10743            PackageRemovedInfo outInfo, int flags, boolean writeSettings) {
10744        String packageName = ps.name;
10745        if (DEBUG_REMOVE) Slog.d(TAG, "removePackageDataLI: " + ps);
10746        removePackageLI(ps, (flags&REMOVE_CHATTY) != 0);
10747        // Retrieve object to delete permissions for shared user later on
10748        final PackageSetting deletedPs;
10749        // reader
10750        synchronized (mPackages) {
10751            deletedPs = mSettings.mPackages.get(packageName);
10752            if (outInfo != null) {
10753                outInfo.removedPackage = packageName;
10754                outInfo.removedUsers = deletedPs != null
10755                        ? deletedPs.queryInstalledUsers(sUserManager.getUserIds(), true)
10756                        : null;
10757            }
10758        }
10759        if ((flags&PackageManager.DELETE_KEEP_DATA) == 0) {
10760            removeDataDirsLI(packageName);
10761            schedulePackageCleaning(packageName, UserHandle.USER_ALL, true);
10762        }
10763        // writer
10764        synchronized (mPackages) {
10765            if (deletedPs != null) {
10766                if ((flags&PackageManager.DELETE_KEEP_DATA) == 0) {
10767                    if (outInfo != null) {
10768                        mSettings.mKeySetManagerService.removeAppKeySetDataLPw(packageName);
10769                        outInfo.removedAppId = mSettings.removePackageLPw(packageName);
10770                    }
10771                    if (deletedPs != null) {
10772                        updatePermissionsLPw(deletedPs.name, null, 0);
10773                        if (deletedPs.sharedUser != null) {
10774                            // remove permissions associated with package
10775                            mSettings.updateSharedUserPermsLPw(deletedPs, mGlobalGids);
10776                        }
10777                    }
10778                    clearPackagePreferredActivitiesLPw(deletedPs.name, UserHandle.USER_ALL);
10779                }
10780                // make sure to preserve per-user disabled state if this removal was just
10781                // a downgrade of a system app to the factory package
10782                if (allUserHandles != null && perUserInstalled != null) {
10783                    if (DEBUG_REMOVE) {
10784                        Slog.d(TAG, "Propagating install state across downgrade");
10785                    }
10786                    for (int i = 0; i < allUserHandles.length; i++) {
10787                        if (DEBUG_REMOVE) {
10788                            Slog.d(TAG, "    user " + allUserHandles[i]
10789                                    + " => " + perUserInstalled[i]);
10790                        }
10791                        ps.setInstalled(perUserInstalled[i], allUserHandles[i]);
10792                    }
10793                }
10794            }
10795            // can downgrade to reader
10796            if (writeSettings) {
10797                // Save settings now
10798                mSettings.writeLPr();
10799            }
10800        }
10801        if (outInfo != null) {
10802            // A user ID was deleted here. Go through all users and remove it
10803            // from KeyStore.
10804            removeKeystoreDataIfNeeded(UserHandle.USER_ALL, outInfo.removedAppId);
10805        }
10806    }
10807
10808    static boolean locationIsPrivileged(File path) {
10809        try {
10810            final String privilegedAppDir = new File(Environment.getRootDirectory(), "priv-app")
10811                    .getCanonicalPath();
10812            return path.getCanonicalPath().startsWith(privilegedAppDir);
10813        } catch (IOException e) {
10814            Slog.e(TAG, "Unable to access code path " + path);
10815        }
10816        return false;
10817    }
10818
10819    /*
10820     * Tries to delete system package.
10821     */
10822    private boolean deleteSystemPackageLI(PackageSetting newPs,
10823            int[] allUserHandles, boolean[] perUserInstalled,
10824            int flags, PackageRemovedInfo outInfo, boolean writeSettings) {
10825        final boolean applyUserRestrictions
10826                = (allUserHandles != null) && (perUserInstalled != null);
10827        PackageSetting disabledPs = null;
10828        // Confirm if the system package has been updated
10829        // An updated system app can be deleted. This will also have to restore
10830        // the system pkg from system partition
10831        // reader
10832        synchronized (mPackages) {
10833            disabledPs = mSettings.getDisabledSystemPkgLPr(newPs.name);
10834        }
10835        if (DEBUG_REMOVE) Slog.d(TAG, "deleteSystemPackageLI: newPs=" + newPs
10836                + " disabledPs=" + disabledPs);
10837        if (disabledPs == null) {
10838            Slog.w(TAG, "Attempt to delete unknown system package "+ newPs.name);
10839            return false;
10840        } else if (DEBUG_REMOVE) {
10841            Slog.d(TAG, "Deleting system pkg from data partition");
10842        }
10843        if (DEBUG_REMOVE) {
10844            if (applyUserRestrictions) {
10845                Slog.d(TAG, "Remembering install states:");
10846                for (int i = 0; i < allUserHandles.length; i++) {
10847                    Slog.d(TAG, "   u=" + allUserHandles[i] + " inst=" + perUserInstalled[i]);
10848                }
10849            }
10850        }
10851        // Delete the updated package
10852        outInfo.isRemovedPackageSystemUpdate = true;
10853        if (disabledPs.versionCode < newPs.versionCode) {
10854            // Delete data for downgrades
10855            flags &= ~PackageManager.DELETE_KEEP_DATA;
10856        } else {
10857            // Preserve data by setting flag
10858            flags |= PackageManager.DELETE_KEEP_DATA;
10859        }
10860        boolean ret = deleteInstalledPackageLI(newPs, true, flags,
10861                allUserHandles, perUserInstalled, outInfo, writeSettings);
10862        if (!ret) {
10863            return false;
10864        }
10865        // writer
10866        synchronized (mPackages) {
10867            // Reinstate the old system package
10868            mSettings.enableSystemPackageLPw(newPs.name);
10869            // Remove any native libraries from the upgraded package.
10870            NativeLibraryHelper.removeNativeBinariesLI(newPs.legacyNativeLibraryPathString);
10871        }
10872        // Install the system package
10873        if (DEBUG_REMOVE) Slog.d(TAG, "Re-installing system package: " + disabledPs);
10874        int parseFlags = PackageParser.PARSE_MUST_BE_APK | PackageParser.PARSE_IS_SYSTEM;
10875        if (locationIsPrivileged(disabledPs.codePath)) {
10876            parseFlags |= PackageParser.PARSE_IS_PRIVILEGED;
10877        }
10878
10879        final PackageParser.Package newPkg;
10880        try {
10881            newPkg = scanPackageLI(disabledPs.codePath, parseFlags, SCAN_NO_PATHS, 0, null);
10882        } catch (PackageManagerException e) {
10883            Slog.w(TAG, "Failed to restore system package:" + newPs.name + ": " + e.getMessage());
10884            return false;
10885        }
10886
10887        // writer
10888        synchronized (mPackages) {
10889            PackageSetting ps = mSettings.mPackages.get(newPkg.packageName);
10890            updatePermissionsLPw(newPkg.packageName, newPkg,
10891                    UPDATE_PERMISSIONS_ALL | UPDATE_PERMISSIONS_REPLACE_PKG);
10892            if (applyUserRestrictions) {
10893                if (DEBUG_REMOVE) {
10894                    Slog.d(TAG, "Propagating install state across reinstall");
10895                }
10896                for (int i = 0; i < allUserHandles.length; i++) {
10897                    if (DEBUG_REMOVE) {
10898                        Slog.d(TAG, "    user " + allUserHandles[i]
10899                                + " => " + perUserInstalled[i]);
10900                    }
10901                    ps.setInstalled(perUserInstalled[i], allUserHandles[i]);
10902                }
10903                // Regardless of writeSettings we need to ensure that this restriction
10904                // state propagation is persisted
10905                mSettings.writeAllUsersPackageRestrictionsLPr();
10906            }
10907            // can downgrade to reader here
10908            if (writeSettings) {
10909                mSettings.writeLPr();
10910            }
10911        }
10912        return true;
10913    }
10914
10915    private boolean deleteInstalledPackageLI(PackageSetting ps,
10916            boolean deleteCodeAndResources, int flags,
10917            int[] allUserHandles, boolean[] perUserInstalled,
10918            PackageRemovedInfo outInfo, boolean writeSettings) {
10919        if (outInfo != null) {
10920            outInfo.uid = ps.appId;
10921        }
10922
10923        // Delete package data from internal structures and also remove data if flag is set
10924        removePackageDataLI(ps, allUserHandles, perUserInstalled, outInfo, flags, writeSettings);
10925
10926        // Delete application code and resources
10927        if (deleteCodeAndResources && (outInfo != null)) {
10928            outInfo.args = createInstallArgsForExisting(packageFlagsToInstallFlags(ps),
10929                    ps.codePathString, ps.resourcePathString, ps.legacyNativeLibraryPathString,
10930                    getAppDexInstructionSets(ps));
10931            if (DEBUG_SD_INSTALL) Slog.i(TAG, "args=" + outInfo.args);
10932        }
10933        return true;
10934    }
10935
10936    @Override
10937    public boolean setBlockUninstallForUser(String packageName, boolean blockUninstall,
10938            int userId) {
10939        mContext.enforceCallingOrSelfPermission(
10940                android.Manifest.permission.DELETE_PACKAGES, null);
10941        synchronized (mPackages) {
10942            PackageSetting ps = mSettings.mPackages.get(packageName);
10943            if (ps == null) {
10944                Log.i(TAG, "Package doesn't exist in set block uninstall " + packageName);
10945                return false;
10946            }
10947            if (!ps.getInstalled(userId)) {
10948                // Can't block uninstall for an app that is not installed or enabled.
10949                Log.i(TAG, "Package not installed in set block uninstall " + packageName);
10950                return false;
10951            }
10952            ps.setBlockUninstall(blockUninstall, userId);
10953            mSettings.writePackageRestrictionsLPr(userId);
10954        }
10955        return true;
10956    }
10957
10958    @Override
10959    public boolean getBlockUninstallForUser(String packageName, int userId) {
10960        synchronized (mPackages) {
10961            PackageSetting ps = mSettings.mPackages.get(packageName);
10962            if (ps == null) {
10963                Log.i(TAG, "Package doesn't exist in get block uninstall " + packageName);
10964                return false;
10965            }
10966            return ps.getBlockUninstall(userId);
10967        }
10968    }
10969
10970    /*
10971     * This method handles package deletion in general
10972     */
10973    private boolean deletePackageLI(String packageName, UserHandle user,
10974            boolean deleteCodeAndResources, int[] allUserHandles, boolean[] perUserInstalled,
10975            int flags, PackageRemovedInfo outInfo,
10976            boolean writeSettings) {
10977        if (packageName == null) {
10978            Slog.w(TAG, "Attempt to delete null packageName.");
10979            return false;
10980        }
10981        if (DEBUG_REMOVE) Slog.d(TAG, "deletePackageLI: " + packageName + " user " + user);
10982        PackageSetting ps;
10983        boolean dataOnly = false;
10984        int removeUser = -1;
10985        int appId = -1;
10986        synchronized (mPackages) {
10987            ps = mSettings.mPackages.get(packageName);
10988            if (ps == null) {
10989                Slog.w(TAG, "Package named '" + packageName + "' doesn't exist.");
10990                return false;
10991            }
10992            if ((!isSystemApp(ps) || (flags&PackageManager.DELETE_SYSTEM_APP) != 0) && user != null
10993                    && user.getIdentifier() != UserHandle.USER_ALL) {
10994                // The caller is asking that the package only be deleted for a single
10995                // user.  To do this, we just mark its uninstalled state and delete
10996                // its data.  If this is a system app, we only allow this to happen if
10997                // they have set the special DELETE_SYSTEM_APP which requests different
10998                // semantics than normal for uninstalling system apps.
10999                if (DEBUG_REMOVE) Slog.d(TAG, "Only deleting for single user");
11000                ps.setUserState(user.getIdentifier(),
11001                        COMPONENT_ENABLED_STATE_DEFAULT,
11002                        false, //installed
11003                        true,  //stopped
11004                        true,  //notLaunched
11005                        false, //hidden
11006                        null, null, null,
11007                        false // blockUninstall
11008                        );
11009                if (!isSystemApp(ps)) {
11010                    if (ps.isAnyInstalled(sUserManager.getUserIds())) {
11011                        // Other user still have this package installed, so all
11012                        // we need to do is clear this user's data and save that
11013                        // it is uninstalled.
11014                        if (DEBUG_REMOVE) Slog.d(TAG, "Still installed by other users");
11015                        removeUser = user.getIdentifier();
11016                        appId = ps.appId;
11017                        mSettings.writePackageRestrictionsLPr(removeUser);
11018                    } else {
11019                        // We need to set it back to 'installed' so the uninstall
11020                        // broadcasts will be sent correctly.
11021                        if (DEBUG_REMOVE) Slog.d(TAG, "Not installed by other users, full delete");
11022                        ps.setInstalled(true, user.getIdentifier());
11023                    }
11024                } else {
11025                    // This is a system app, so we assume that the
11026                    // other users still have this package installed, so all
11027                    // we need to do is clear this user's data and save that
11028                    // it is uninstalled.
11029                    if (DEBUG_REMOVE) Slog.d(TAG, "Deleting system app");
11030                    removeUser = user.getIdentifier();
11031                    appId = ps.appId;
11032                    mSettings.writePackageRestrictionsLPr(removeUser);
11033                }
11034            }
11035        }
11036
11037        if (removeUser >= 0) {
11038            // From above, we determined that we are deleting this only
11039            // for a single user.  Continue the work here.
11040            if (DEBUG_REMOVE) Slog.d(TAG, "Updating install state for user: " + removeUser);
11041            if (outInfo != null) {
11042                outInfo.removedPackage = packageName;
11043                outInfo.removedAppId = appId;
11044                outInfo.removedUsers = new int[] {removeUser};
11045            }
11046            mInstaller.clearUserData(packageName, removeUser);
11047            removeKeystoreDataIfNeeded(removeUser, appId);
11048            schedulePackageCleaning(packageName, removeUser, false);
11049            return true;
11050        }
11051
11052        if (dataOnly) {
11053            // Delete application data first
11054            if (DEBUG_REMOVE) Slog.d(TAG, "Removing package data only");
11055            removePackageDataLI(ps, null, null, outInfo, flags, writeSettings);
11056            return true;
11057        }
11058
11059        boolean ret = false;
11060        if (isSystemApp(ps)) {
11061            if (DEBUG_REMOVE) Slog.d(TAG, "Removing system package:" + ps.name);
11062            // When an updated system application is deleted we delete the existing resources as well and
11063            // fall back to existing code in system partition
11064            ret = deleteSystemPackageLI(ps, allUserHandles, perUserInstalled,
11065                    flags, outInfo, writeSettings);
11066        } else {
11067            if (DEBUG_REMOVE) Slog.d(TAG, "Removing non-system package:" + ps.name);
11068            // Kill application pre-emptively especially for apps on sd.
11069            killApplication(packageName, ps.appId, "uninstall pkg");
11070            ret = deleteInstalledPackageLI(ps, deleteCodeAndResources, flags,
11071                    allUserHandles, perUserInstalled,
11072                    outInfo, writeSettings);
11073        }
11074
11075        return ret;
11076    }
11077
11078    private final class ClearStorageConnection implements ServiceConnection {
11079        IMediaContainerService mContainerService;
11080
11081        @Override
11082        public void onServiceConnected(ComponentName name, IBinder service) {
11083            synchronized (this) {
11084                mContainerService = IMediaContainerService.Stub.asInterface(service);
11085                notifyAll();
11086            }
11087        }
11088
11089        @Override
11090        public void onServiceDisconnected(ComponentName name) {
11091        }
11092    }
11093
11094    private void clearExternalStorageDataSync(String packageName, int userId, boolean allData) {
11095        final boolean mounted;
11096        if (Environment.isExternalStorageEmulated()) {
11097            mounted = true;
11098        } else {
11099            final String status = Environment.getExternalStorageState();
11100
11101            mounted = status.equals(Environment.MEDIA_MOUNTED)
11102                    || status.equals(Environment.MEDIA_MOUNTED_READ_ONLY);
11103        }
11104
11105        if (!mounted) {
11106            return;
11107        }
11108
11109        final Intent containerIntent = new Intent().setComponent(DEFAULT_CONTAINER_COMPONENT);
11110        int[] users;
11111        if (userId == UserHandle.USER_ALL) {
11112            users = sUserManager.getUserIds();
11113        } else {
11114            users = new int[] { userId };
11115        }
11116        final ClearStorageConnection conn = new ClearStorageConnection();
11117        if (mContext.bindServiceAsUser(
11118                containerIntent, conn, Context.BIND_AUTO_CREATE, UserHandle.OWNER)) {
11119            try {
11120                for (int curUser : users) {
11121                    long timeout = SystemClock.uptimeMillis() + 5000;
11122                    synchronized (conn) {
11123                        long now = SystemClock.uptimeMillis();
11124                        while (conn.mContainerService == null && now < timeout) {
11125                            try {
11126                                conn.wait(timeout - now);
11127                            } catch (InterruptedException e) {
11128                            }
11129                        }
11130                    }
11131                    if (conn.mContainerService == null) {
11132                        return;
11133                    }
11134
11135                    final UserEnvironment userEnv = new UserEnvironment(curUser);
11136                    clearDirectory(conn.mContainerService,
11137                            userEnv.buildExternalStorageAppCacheDirs(packageName));
11138                    if (allData) {
11139                        clearDirectory(conn.mContainerService,
11140                                userEnv.buildExternalStorageAppDataDirs(packageName));
11141                        clearDirectory(conn.mContainerService,
11142                                userEnv.buildExternalStorageAppMediaDirs(packageName));
11143                    }
11144                }
11145            } finally {
11146                mContext.unbindService(conn);
11147            }
11148        }
11149    }
11150
11151    @Override
11152    public void clearApplicationUserData(final String packageName,
11153            final IPackageDataObserver observer, final int userId) {
11154        mContext.enforceCallingOrSelfPermission(
11155                android.Manifest.permission.CLEAR_APP_USER_DATA, null);
11156        enforceCrossUserPermission(Binder.getCallingUid(), userId, true, false, "clear application data");
11157        // Queue up an async operation since the package deletion may take a little while.
11158        mHandler.post(new Runnable() {
11159            public void run() {
11160                mHandler.removeCallbacks(this);
11161                final boolean succeeded;
11162                synchronized (mInstallLock) {
11163                    succeeded = clearApplicationUserDataLI(packageName, userId);
11164                }
11165                clearExternalStorageDataSync(packageName, userId, true);
11166                if (succeeded) {
11167                    // invoke DeviceStorageMonitor's update method to clear any notifications
11168                    DeviceStorageMonitorInternal
11169                            dsm = LocalServices.getService(DeviceStorageMonitorInternal.class);
11170                    if (dsm != null) {
11171                        dsm.checkMemory();
11172                    }
11173                }
11174                if(observer != null) {
11175                    try {
11176                        observer.onRemoveCompleted(packageName, succeeded);
11177                    } catch (RemoteException e) {
11178                        Log.i(TAG, "Observer no longer exists.");
11179                    }
11180                } //end if observer
11181            } //end run
11182        });
11183    }
11184
11185    private boolean clearApplicationUserDataLI(String packageName, int userId) {
11186        if (packageName == null) {
11187            Slog.w(TAG, "Attempt to delete null packageName.");
11188            return false;
11189        }
11190
11191        // Try finding details about the requested package
11192        PackageParser.Package pkg;
11193        synchronized (mPackages) {
11194            pkg = mPackages.get(packageName);
11195            if (pkg == null) {
11196                final PackageSetting ps = mSettings.mPackages.get(packageName);
11197                if (ps != null) {
11198                    pkg = ps.pkg;
11199                }
11200            }
11201        }
11202
11203        if (pkg == null) {
11204            Slog.w(TAG, "Package named '" + packageName + "' doesn't exist.");
11205        }
11206
11207        // Always delete data directories for package, even if we found no other
11208        // record of app. This helps users recover from UID mismatches without
11209        // resorting to a full data wipe.
11210        int retCode = mInstaller.clearUserData(packageName, userId);
11211        if (retCode < 0) {
11212            Slog.w(TAG, "Couldn't remove cache files for package: " + packageName);
11213            return false;
11214        }
11215
11216        if (pkg == null) {
11217            return false;
11218        }
11219
11220        if (pkg != null && pkg.applicationInfo != null) {
11221            final int appId = pkg.applicationInfo.uid;
11222            removeKeystoreDataIfNeeded(userId, appId);
11223        }
11224
11225        // Create a native library symlink only if we have native libraries
11226        // and if the native libraries are 32 bit libraries. We do not provide
11227        // this symlink for 64 bit libraries.
11228        if (pkg != null && pkg.applicationInfo.primaryCpuAbi != null &&
11229                !VMRuntime.is64BitAbi(pkg.applicationInfo.primaryCpuAbi)) {
11230            final String nativeLibPath = pkg.applicationInfo.nativeLibraryDir;
11231            if (mInstaller.linkNativeLibraryDirectory(pkg.packageName, nativeLibPath, userId) < 0) {
11232                Slog.w(TAG, "Failed linking native library dir");
11233                return false;
11234            }
11235        }
11236
11237        return true;
11238    }
11239
11240    /**
11241     * Remove entries from the keystore daemon. Will only remove it if the
11242     * {@code appId} is valid.
11243     */
11244    private static void removeKeystoreDataIfNeeded(int userId, int appId) {
11245        if (appId < 0) {
11246            return;
11247        }
11248
11249        final KeyStore keyStore = KeyStore.getInstance();
11250        if (keyStore != null) {
11251            if (userId == UserHandle.USER_ALL) {
11252                for (final int individual : sUserManager.getUserIds()) {
11253                    keyStore.clearUid(UserHandle.getUid(individual, appId));
11254                }
11255            } else {
11256                keyStore.clearUid(UserHandle.getUid(userId, appId));
11257            }
11258        } else {
11259            Slog.w(TAG, "Could not contact keystore to clear entries for app id " + appId);
11260        }
11261    }
11262
11263    @Override
11264    public void deleteApplicationCacheFiles(final String packageName,
11265            final IPackageDataObserver observer) {
11266        mContext.enforceCallingOrSelfPermission(
11267                android.Manifest.permission.DELETE_CACHE_FILES, null);
11268        // Queue up an async operation since the package deletion may take a little while.
11269        final int userId = UserHandle.getCallingUserId();
11270        mHandler.post(new Runnable() {
11271            public void run() {
11272                mHandler.removeCallbacks(this);
11273                final boolean succeded;
11274                synchronized (mInstallLock) {
11275                    succeded = deleteApplicationCacheFilesLI(packageName, userId);
11276                }
11277                clearExternalStorageDataSync(packageName, userId, false);
11278                if(observer != null) {
11279                    try {
11280                        observer.onRemoveCompleted(packageName, succeded);
11281                    } catch (RemoteException e) {
11282                        Log.i(TAG, "Observer no longer exists.");
11283                    }
11284                } //end if observer
11285            } //end run
11286        });
11287    }
11288
11289    private boolean deleteApplicationCacheFilesLI(String packageName, int userId) {
11290        if (packageName == null) {
11291            Slog.w(TAG, "Attempt to delete null packageName.");
11292            return false;
11293        }
11294        PackageParser.Package p;
11295        synchronized (mPackages) {
11296            p = mPackages.get(packageName);
11297        }
11298        if (p == null) {
11299            Slog.w(TAG, "Package named '" + packageName +"' doesn't exist.");
11300            return false;
11301        }
11302        final ApplicationInfo applicationInfo = p.applicationInfo;
11303        if (applicationInfo == null) {
11304            Slog.w(TAG, "Package " + packageName + " has no applicationInfo.");
11305            return false;
11306        }
11307        int retCode = mInstaller.deleteCacheFiles(packageName, userId);
11308        if (retCode < 0) {
11309            Slog.w(TAG, "Couldn't remove cache files for package: "
11310                       + packageName + " u" + userId);
11311            return false;
11312        }
11313        return true;
11314    }
11315
11316    @Override
11317    public void getPackageSizeInfo(final String packageName, int userHandle,
11318            final IPackageStatsObserver observer) {
11319        mContext.enforceCallingOrSelfPermission(
11320                android.Manifest.permission.GET_PACKAGE_SIZE, null);
11321        if (packageName == null) {
11322            throw new IllegalArgumentException("Attempt to get size of null packageName");
11323        }
11324
11325        PackageStats stats = new PackageStats(packageName, userHandle);
11326
11327        /*
11328         * Queue up an async operation since the package measurement may take a
11329         * little while.
11330         */
11331        Message msg = mHandler.obtainMessage(INIT_COPY);
11332        msg.obj = new MeasureParams(stats, observer);
11333        mHandler.sendMessage(msg);
11334    }
11335
11336    private boolean getPackageSizeInfoLI(String packageName, int userHandle,
11337            PackageStats pStats) {
11338        if (packageName == null) {
11339            Slog.w(TAG, "Attempt to get size of null packageName.");
11340            return false;
11341        }
11342        PackageParser.Package p;
11343        boolean dataOnly = false;
11344        String libDirRoot = null;
11345        String asecPath = null;
11346        PackageSetting ps = null;
11347        synchronized (mPackages) {
11348            p = mPackages.get(packageName);
11349            ps = mSettings.mPackages.get(packageName);
11350            if(p == null) {
11351                dataOnly = true;
11352                if((ps == null) || (ps.pkg == null)) {
11353                    Slog.w(TAG, "Package named '" + packageName +"' doesn't exist.");
11354                    return false;
11355                }
11356                p = ps.pkg;
11357            }
11358            if (ps != null) {
11359                libDirRoot = ps.legacyNativeLibraryPathString;
11360            }
11361            if (p != null && (isExternal(p) || p.isForwardLocked())) {
11362                String secureContainerId = cidFromCodePath(p.applicationInfo.getBaseCodePath());
11363                if (secureContainerId != null) {
11364                    asecPath = PackageHelper.getSdFilesystem(secureContainerId);
11365                }
11366            }
11367        }
11368        String publicSrcDir = null;
11369        if(!dataOnly) {
11370            final ApplicationInfo applicationInfo = p.applicationInfo;
11371            if (applicationInfo == null) {
11372                Slog.w(TAG, "Package " + packageName + " has no applicationInfo.");
11373                return false;
11374            }
11375            if (p.isForwardLocked()) {
11376                publicSrcDir = applicationInfo.getBaseResourcePath();
11377            }
11378        }
11379        // TODO: extend to measure size of split APKs
11380        // TODO(multiArch): Extend getSizeInfo to look at the full subdirectory tree,
11381        // not just the first level.
11382        // TODO(multiArch): Extend getSizeInfo to look at *all* instruction sets, not
11383        // just the primary.
11384        String[] dexCodeInstructionSets = getDexCodeInstructionSets(getAppDexInstructionSets(ps));
11385        int res = mInstaller.getSizeInfo(packageName, userHandle, p.baseCodePath, libDirRoot,
11386                publicSrcDir, asecPath, dexCodeInstructionSets, pStats);
11387        if (res < 0) {
11388            return false;
11389        }
11390
11391        // Fix-up for forward-locked applications in ASEC containers.
11392        if (!isExternal(p)) {
11393            pStats.codeSize += pStats.externalCodeSize;
11394            pStats.externalCodeSize = 0L;
11395        }
11396
11397        return true;
11398    }
11399
11400
11401    @Override
11402    public void addPackageToPreferred(String packageName) {
11403        Slog.w(TAG, "addPackageToPreferred: this is now a no-op");
11404    }
11405
11406    @Override
11407    public void removePackageFromPreferred(String packageName) {
11408        Slog.w(TAG, "removePackageFromPreferred: this is now a no-op");
11409    }
11410
11411    @Override
11412    public List<PackageInfo> getPreferredPackages(int flags) {
11413        return new ArrayList<PackageInfo>();
11414    }
11415
11416    private int getUidTargetSdkVersionLockedLPr(int uid) {
11417        Object obj = mSettings.getUserIdLPr(uid);
11418        if (obj instanceof SharedUserSetting) {
11419            final SharedUserSetting sus = (SharedUserSetting) obj;
11420            int vers = Build.VERSION_CODES.CUR_DEVELOPMENT;
11421            final Iterator<PackageSetting> it = sus.packages.iterator();
11422            while (it.hasNext()) {
11423                final PackageSetting ps = it.next();
11424                if (ps.pkg != null) {
11425                    int v = ps.pkg.applicationInfo.targetSdkVersion;
11426                    if (v < vers) vers = v;
11427                }
11428            }
11429            return vers;
11430        } else if (obj instanceof PackageSetting) {
11431            final PackageSetting ps = (PackageSetting) obj;
11432            if (ps.pkg != null) {
11433                return ps.pkg.applicationInfo.targetSdkVersion;
11434            }
11435        }
11436        return Build.VERSION_CODES.CUR_DEVELOPMENT;
11437    }
11438
11439    @Override
11440    public void addPreferredActivity(IntentFilter filter, int match,
11441            ComponentName[] set, ComponentName activity, int userId) {
11442        addPreferredActivityInternal(filter, match, set, activity, true, userId,
11443                "Adding preferred");
11444    }
11445
11446    private void addPreferredActivityInternal(IntentFilter filter, int match,
11447            ComponentName[] set, ComponentName activity, boolean always, int userId,
11448            String opname) {
11449        // writer
11450        int callingUid = Binder.getCallingUid();
11451        enforceCrossUserPermission(callingUid, userId, true, false, "add preferred activity");
11452        if (filter.countActions() == 0) {
11453            Slog.w(TAG, "Cannot set a preferred activity with no filter actions");
11454            return;
11455        }
11456        synchronized (mPackages) {
11457            if (mContext.checkCallingOrSelfPermission(
11458                    android.Manifest.permission.SET_PREFERRED_APPLICATIONS)
11459                    != PackageManager.PERMISSION_GRANTED) {
11460                if (getUidTargetSdkVersionLockedLPr(callingUid)
11461                        < Build.VERSION_CODES.FROYO) {
11462                    Slog.w(TAG, "Ignoring addPreferredActivity() from uid "
11463                            + callingUid);
11464                    return;
11465                }
11466                mContext.enforceCallingOrSelfPermission(
11467                        android.Manifest.permission.SET_PREFERRED_APPLICATIONS, null);
11468            }
11469
11470            PreferredIntentResolver pir = mSettings.editPreferredActivitiesLPw(userId);
11471            Slog.i(TAG, opname + " activity " + activity.flattenToShortString() + " for user "
11472                    + userId + ":");
11473            filter.dump(new LogPrinter(Log.INFO, TAG), "  ");
11474            pir.addFilter(new PreferredActivity(filter, match, set, activity, always));
11475            scheduleWritePackageRestrictionsLocked(userId);
11476        }
11477    }
11478
11479    @Override
11480    public void replacePreferredActivity(IntentFilter filter, int match,
11481            ComponentName[] set, ComponentName activity, int userId) {
11482        if (filter.countActions() != 1) {
11483            throw new IllegalArgumentException(
11484                    "replacePreferredActivity expects filter to have only 1 action.");
11485        }
11486        if (filter.countDataAuthorities() != 0
11487                || filter.countDataPaths() != 0
11488                || filter.countDataSchemes() > 1
11489                || filter.countDataTypes() != 0) {
11490            throw new IllegalArgumentException(
11491                    "replacePreferredActivity expects filter to have no data authorities, " +
11492                    "paths, or types; and at most one scheme.");
11493        }
11494
11495        final int callingUid = Binder.getCallingUid();
11496        enforceCrossUserPermission(callingUid, userId, true, false, "replace preferred activity");
11497        synchronized (mPackages) {
11498            if (mContext.checkCallingOrSelfPermission(
11499                    android.Manifest.permission.SET_PREFERRED_APPLICATIONS)
11500                    != PackageManager.PERMISSION_GRANTED) {
11501                if (getUidTargetSdkVersionLockedLPr(callingUid)
11502                        < Build.VERSION_CODES.FROYO) {
11503                    Slog.w(TAG, "Ignoring replacePreferredActivity() from uid "
11504                            + Binder.getCallingUid());
11505                    return;
11506                }
11507                mContext.enforceCallingOrSelfPermission(
11508                        android.Manifest.permission.SET_PREFERRED_APPLICATIONS, null);
11509            }
11510
11511            PreferredIntentResolver pir = mSettings.mPreferredActivities.get(userId);
11512            if (pir != null) {
11513                // Get all of the existing entries that exactly match this filter.
11514                ArrayList<PreferredActivity> existing = pir.findFilters(filter);
11515                if (existing != null && existing.size() == 1) {
11516                    PreferredActivity cur = existing.get(0);
11517                    if (DEBUG_PREFERRED) {
11518                        Slog.i(TAG, "Checking replace of preferred:");
11519                        filter.dump(new LogPrinter(Log.INFO, TAG), "  ");
11520                        if (!cur.mPref.mAlways) {
11521                            Slog.i(TAG, "  -- CUR; not mAlways!");
11522                        } else {
11523                            Slog.i(TAG, "  -- CUR: mMatch=" + cur.mPref.mMatch);
11524                            Slog.i(TAG, "  -- CUR: mSet="
11525                                    + Arrays.toString(cur.mPref.mSetComponents));
11526                            Slog.i(TAG, "  -- CUR: mComponent=" + cur.mPref.mShortComponent);
11527                            Slog.i(TAG, "  -- NEW: mMatch="
11528                                    + (match&IntentFilter.MATCH_CATEGORY_MASK));
11529                            Slog.i(TAG, "  -- CUR: mSet=" + Arrays.toString(set));
11530                            Slog.i(TAG, "  -- CUR: mComponent=" + activity.flattenToShortString());
11531                        }
11532                    }
11533                    if (cur.mPref.mAlways && cur.mPref.mComponent.equals(activity)
11534                            && cur.mPref.mMatch == (match&IntentFilter.MATCH_CATEGORY_MASK)
11535                            && cur.mPref.sameSet(set)) {
11536                        // Setting the preferred activity to what it happens to be already
11537                        if (DEBUG_PREFERRED) {
11538                            Slog.i(TAG, "Replacing with same preferred activity "
11539                                    + cur.mPref.mShortComponent + " for user "
11540                                    + userId + ":");
11541                            filter.dump(new LogPrinter(Log.INFO, TAG), "  ");
11542                        }
11543                        return;
11544                    }
11545                }
11546
11547                if (existing != null) {
11548                    if (DEBUG_PREFERRED) {
11549                        Slog.i(TAG, existing.size() + " existing preferred matches for:");
11550                        filter.dump(new LogPrinter(Log.INFO, TAG), "  ");
11551                    }
11552                    for (int i = 0; i < existing.size(); i++) {
11553                        PreferredActivity pa = existing.get(i);
11554                        if (DEBUG_PREFERRED) {
11555                            Slog.i(TAG, "Removing existing preferred activity "
11556                                    + pa.mPref.mComponent + ":");
11557                            pa.dump(new LogPrinter(Log.INFO, TAG), "  ");
11558                        }
11559                        pir.removeFilter(pa);
11560                    }
11561                }
11562            }
11563            addPreferredActivityInternal(filter, match, set, activity, true, userId,
11564                    "Replacing preferred");
11565        }
11566    }
11567
11568    @Override
11569    public void clearPackagePreferredActivities(String packageName) {
11570        final int uid = Binder.getCallingUid();
11571        // writer
11572        synchronized (mPackages) {
11573            PackageParser.Package pkg = mPackages.get(packageName);
11574            if (pkg == null || pkg.applicationInfo.uid != uid) {
11575                if (mContext.checkCallingOrSelfPermission(
11576                        android.Manifest.permission.SET_PREFERRED_APPLICATIONS)
11577                        != PackageManager.PERMISSION_GRANTED) {
11578                    if (getUidTargetSdkVersionLockedLPr(Binder.getCallingUid())
11579                            < Build.VERSION_CODES.FROYO) {
11580                        Slog.w(TAG, "Ignoring clearPackagePreferredActivities() from uid "
11581                                + Binder.getCallingUid());
11582                        return;
11583                    }
11584                    mContext.enforceCallingOrSelfPermission(
11585                            android.Manifest.permission.SET_PREFERRED_APPLICATIONS, null);
11586                }
11587            }
11588
11589            int user = UserHandle.getCallingUserId();
11590            if (clearPackagePreferredActivitiesLPw(packageName, user)) {
11591                scheduleWritePackageRestrictionsLocked(user);
11592            }
11593        }
11594    }
11595
11596    /** This method takes a specific user id as well as UserHandle.USER_ALL. */
11597    boolean clearPackagePreferredActivitiesLPw(String packageName, int userId) {
11598        ArrayList<PreferredActivity> removed = null;
11599        boolean changed = false;
11600        for (int i=0; i<mSettings.mPreferredActivities.size(); i++) {
11601            final int thisUserId = mSettings.mPreferredActivities.keyAt(i);
11602            PreferredIntentResolver pir = mSettings.mPreferredActivities.valueAt(i);
11603            if (userId != UserHandle.USER_ALL && userId != thisUserId) {
11604                continue;
11605            }
11606            Iterator<PreferredActivity> it = pir.filterIterator();
11607            while (it.hasNext()) {
11608                PreferredActivity pa = it.next();
11609                // Mark entry for removal only if it matches the package name
11610                // and the entry is of type "always".
11611                if (packageName == null ||
11612                        (pa.mPref.mComponent.getPackageName().equals(packageName)
11613                                && pa.mPref.mAlways)) {
11614                    if (removed == null) {
11615                        removed = new ArrayList<PreferredActivity>();
11616                    }
11617                    removed.add(pa);
11618                }
11619            }
11620            if (removed != null) {
11621                for (int j=0; j<removed.size(); j++) {
11622                    PreferredActivity pa = removed.get(j);
11623                    pir.removeFilter(pa);
11624                }
11625                changed = true;
11626            }
11627        }
11628        return changed;
11629    }
11630
11631    @Override
11632    public void resetPreferredActivities(int userId) {
11633        /* TODO: Actually use userId. Why is it being passed in? */
11634        mContext.enforceCallingOrSelfPermission(
11635                android.Manifest.permission.SET_PREFERRED_APPLICATIONS, null);
11636        // writer
11637        synchronized (mPackages) {
11638            int user = UserHandle.getCallingUserId();
11639            clearPackagePreferredActivitiesLPw(null, user);
11640            mSettings.readDefaultPreferredAppsLPw(this, user);
11641            scheduleWritePackageRestrictionsLocked(user);
11642        }
11643    }
11644
11645    @Override
11646    public int getPreferredActivities(List<IntentFilter> outFilters,
11647            List<ComponentName> outActivities, String packageName) {
11648
11649        int num = 0;
11650        final int userId = UserHandle.getCallingUserId();
11651        // reader
11652        synchronized (mPackages) {
11653            PreferredIntentResolver pir = mSettings.mPreferredActivities.get(userId);
11654            if (pir != null) {
11655                final Iterator<PreferredActivity> it = pir.filterIterator();
11656                while (it.hasNext()) {
11657                    final PreferredActivity pa = it.next();
11658                    if (packageName == null
11659                            || (pa.mPref.mComponent.getPackageName().equals(packageName)
11660                                    && pa.mPref.mAlways)) {
11661                        if (outFilters != null) {
11662                            outFilters.add(new IntentFilter(pa));
11663                        }
11664                        if (outActivities != null) {
11665                            outActivities.add(pa.mPref.mComponent);
11666                        }
11667                    }
11668                }
11669            }
11670        }
11671
11672        return num;
11673    }
11674
11675    @Override
11676    public void addPersistentPreferredActivity(IntentFilter filter, ComponentName activity,
11677            int userId) {
11678        int callingUid = Binder.getCallingUid();
11679        if (callingUid != Process.SYSTEM_UID) {
11680            throw new SecurityException(
11681                    "addPersistentPreferredActivity can only be run by the system");
11682        }
11683        if (filter.countActions() == 0) {
11684            Slog.w(TAG, "Cannot set a preferred activity with no filter actions");
11685            return;
11686        }
11687        synchronized (mPackages) {
11688            Slog.i(TAG, "Adding persistent preferred activity " + activity + " for user " + userId +
11689                    " :");
11690            filter.dump(new LogPrinter(Log.INFO, TAG), "  ");
11691            mSettings.editPersistentPreferredActivitiesLPw(userId).addFilter(
11692                    new PersistentPreferredActivity(filter, activity));
11693            scheduleWritePackageRestrictionsLocked(userId);
11694        }
11695    }
11696
11697    @Override
11698    public void clearPackagePersistentPreferredActivities(String packageName, int userId) {
11699        int callingUid = Binder.getCallingUid();
11700        if (callingUid != Process.SYSTEM_UID) {
11701            throw new SecurityException(
11702                    "clearPackagePersistentPreferredActivities can only be run by the system");
11703        }
11704        ArrayList<PersistentPreferredActivity> removed = null;
11705        boolean changed = false;
11706        synchronized (mPackages) {
11707            for (int i=0; i<mSettings.mPersistentPreferredActivities.size(); i++) {
11708                final int thisUserId = mSettings.mPersistentPreferredActivities.keyAt(i);
11709                PersistentPreferredIntentResolver ppir = mSettings.mPersistentPreferredActivities
11710                        .valueAt(i);
11711                if (userId != thisUserId) {
11712                    continue;
11713                }
11714                Iterator<PersistentPreferredActivity> it = ppir.filterIterator();
11715                while (it.hasNext()) {
11716                    PersistentPreferredActivity ppa = it.next();
11717                    // Mark entry for removal only if it matches the package name.
11718                    if (ppa.mComponent.getPackageName().equals(packageName)) {
11719                        if (removed == null) {
11720                            removed = new ArrayList<PersistentPreferredActivity>();
11721                        }
11722                        removed.add(ppa);
11723                    }
11724                }
11725                if (removed != null) {
11726                    for (int j=0; j<removed.size(); j++) {
11727                        PersistentPreferredActivity ppa = removed.get(j);
11728                        ppir.removeFilter(ppa);
11729                    }
11730                    changed = true;
11731                }
11732            }
11733
11734            if (changed) {
11735                scheduleWritePackageRestrictionsLocked(userId);
11736            }
11737        }
11738    }
11739
11740    @Override
11741    public void addCrossProfileIntentFilter(IntentFilter intentFilter, String ownerPackage,
11742            int ownerUserId, int sourceUserId, int targetUserId, int flags) {
11743        mContext.enforceCallingOrSelfPermission(
11744                        android.Manifest.permission.INTERACT_ACROSS_USERS_FULL, null);
11745        int callingUid = Binder.getCallingUid();
11746        enforceOwnerRights(ownerPackage, ownerUserId, callingUid);
11747        enforceShellRestriction(UserManager.DISALLOW_DEBUGGING_FEATURES, callingUid, sourceUserId);
11748        if (intentFilter.countActions() == 0) {
11749            Slog.w(TAG, "Cannot set a crossProfile intent filter with no filter actions");
11750            return;
11751        }
11752        synchronized (mPackages) {
11753            CrossProfileIntentFilter newFilter = new CrossProfileIntentFilter(intentFilter,
11754                    ownerPackage, UserHandle.getUserId(callingUid), targetUserId, flags);
11755            CrossProfileIntentResolver resolver =
11756                    mSettings.editCrossProfileIntentResolverLPw(sourceUserId);
11757            ArrayList<CrossProfileIntentFilter> existing = resolver.findFilters(intentFilter);
11758            // We have all those whose filter is equal. Now checking if the rest is equal as well.
11759            if (existing != null) {
11760                int size = existing.size();
11761                for (int i = 0; i < size; i++) {
11762                    if (newFilter.equalsIgnoreFilter(existing.get(i))) {
11763                        return;
11764                    }
11765                }
11766            }
11767            resolver.addFilter(newFilter);
11768            scheduleWritePackageRestrictionsLocked(sourceUserId);
11769        }
11770    }
11771
11772    @Override
11773    public void clearCrossProfileIntentFilters(int sourceUserId, String ownerPackage,
11774            int ownerUserId) {
11775        mContext.enforceCallingOrSelfPermission(
11776                        android.Manifest.permission.INTERACT_ACROSS_USERS_FULL, null);
11777        int callingUid = Binder.getCallingUid();
11778        enforceOwnerRights(ownerPackage, ownerUserId, callingUid);
11779        enforceShellRestriction(UserManager.DISALLOW_DEBUGGING_FEATURES, callingUid, sourceUserId);
11780        int callingUserId = UserHandle.getUserId(callingUid);
11781        synchronized (mPackages) {
11782            CrossProfileIntentResolver resolver =
11783                    mSettings.editCrossProfileIntentResolverLPw(sourceUserId);
11784            ArraySet<CrossProfileIntentFilter> set =
11785                    new ArraySet<CrossProfileIntentFilter>(resolver.filterSet());
11786            for (CrossProfileIntentFilter filter : set) {
11787                if (filter.getOwnerPackage().equals(ownerPackage)
11788                        && filter.getOwnerUserId() == callingUserId) {
11789                    resolver.removeFilter(filter);
11790                }
11791            }
11792            scheduleWritePackageRestrictionsLocked(sourceUserId);
11793        }
11794    }
11795
11796    // Enforcing that callingUid is owning pkg on userId
11797    private void enforceOwnerRights(String pkg, int userId, int callingUid) {
11798        // The system owns everything.
11799        if (UserHandle.getAppId(callingUid) == Process.SYSTEM_UID) {
11800            return;
11801        }
11802        int callingUserId = UserHandle.getUserId(callingUid);
11803        if (callingUserId != userId) {
11804            throw new SecurityException("calling uid " + callingUid
11805                    + " pretends to own " + pkg + " on user " + userId + " but belongs to user "
11806                    + callingUserId);
11807        }
11808        PackageInfo pi = getPackageInfo(pkg, 0, callingUserId);
11809        if (pi == null) {
11810            throw new IllegalArgumentException("Unknown package " + pkg + " on user "
11811                    + callingUserId);
11812        }
11813        if (!UserHandle.isSameApp(pi.applicationInfo.uid, callingUid)) {
11814            throw new SecurityException("Calling uid " + callingUid
11815                    + " does not own package " + pkg);
11816        }
11817    }
11818
11819    @Override
11820    public ComponentName getHomeActivities(List<ResolveInfo> allHomeCandidates) {
11821        Intent intent = new Intent(Intent.ACTION_MAIN);
11822        intent.addCategory(Intent.CATEGORY_HOME);
11823
11824        final int callingUserId = UserHandle.getCallingUserId();
11825        List<ResolveInfo> list = queryIntentActivities(intent, null,
11826                PackageManager.GET_META_DATA, callingUserId);
11827        ResolveInfo preferred = findPreferredActivity(intent, null, 0, list, 0,
11828                true, false, false, callingUserId);
11829
11830        allHomeCandidates.clear();
11831        if (list != null) {
11832            for (ResolveInfo ri : list) {
11833                allHomeCandidates.add(ri);
11834            }
11835        }
11836        return (preferred == null || preferred.activityInfo == null)
11837                ? null
11838                : new ComponentName(preferred.activityInfo.packageName,
11839                        preferred.activityInfo.name);
11840    }
11841
11842    @Override
11843    public void setApplicationEnabledSetting(String appPackageName,
11844            int newState, int flags, int userId, String callingPackage) {
11845        if (!sUserManager.exists(userId)) return;
11846        if (callingPackage == null) {
11847            callingPackage = Integer.toString(Binder.getCallingUid());
11848        }
11849        setEnabledSetting(appPackageName, null, newState, flags, userId, callingPackage);
11850    }
11851
11852    @Override
11853    public void setComponentEnabledSetting(ComponentName componentName,
11854            int newState, int flags, int userId) {
11855        if (!sUserManager.exists(userId)) return;
11856        setEnabledSetting(componentName.getPackageName(),
11857                componentName.getClassName(), newState, flags, userId, null);
11858    }
11859
11860    private void setEnabledSetting(final String packageName, String className, int newState,
11861            final int flags, int userId, String callingPackage) {
11862        if (!(newState == COMPONENT_ENABLED_STATE_DEFAULT
11863              || newState == COMPONENT_ENABLED_STATE_ENABLED
11864              || newState == COMPONENT_ENABLED_STATE_DISABLED
11865              || newState == COMPONENT_ENABLED_STATE_DISABLED_USER
11866              || newState == COMPONENT_ENABLED_STATE_DISABLED_UNTIL_USED)) {
11867            throw new IllegalArgumentException("Invalid new component state: "
11868                    + newState);
11869        }
11870        PackageSetting pkgSetting;
11871        final int uid = Binder.getCallingUid();
11872        final int permission = mContext.checkCallingOrSelfPermission(
11873                android.Manifest.permission.CHANGE_COMPONENT_ENABLED_STATE);
11874        enforceCrossUserPermission(uid, userId, false, true, "set enabled");
11875        final boolean allowedByPermission = (permission == PackageManager.PERMISSION_GRANTED);
11876        boolean sendNow = false;
11877        boolean isApp = (className == null);
11878        String componentName = isApp ? packageName : className;
11879        int packageUid = -1;
11880        ArrayList<String> components;
11881
11882        // writer
11883        synchronized (mPackages) {
11884            pkgSetting = mSettings.mPackages.get(packageName);
11885            if (pkgSetting == null) {
11886                if (className == null) {
11887                    throw new IllegalArgumentException(
11888                            "Unknown package: " + packageName);
11889                }
11890                throw new IllegalArgumentException(
11891                        "Unknown component: " + packageName
11892                        + "/" + className);
11893            }
11894            // Allow root and verify that userId is not being specified by a different user
11895            if (!allowedByPermission && !UserHandle.isSameApp(uid, pkgSetting.appId)) {
11896                throw new SecurityException(
11897                        "Permission Denial: attempt to change component state from pid="
11898                        + Binder.getCallingPid()
11899                        + ", uid=" + uid + ", package uid=" + pkgSetting.appId);
11900            }
11901            if (className == null) {
11902                // We're dealing with an application/package level state change
11903                if (pkgSetting.getEnabled(userId) == newState) {
11904                    // Nothing to do
11905                    return;
11906                }
11907                if (newState == PackageManager.COMPONENT_ENABLED_STATE_DEFAULT
11908                    || newState == PackageManager.COMPONENT_ENABLED_STATE_ENABLED) {
11909                    // Don't care about who enables an app.
11910                    callingPackage = null;
11911                }
11912                pkgSetting.setEnabled(newState, userId, callingPackage);
11913                // pkgSetting.pkg.mSetEnabled = newState;
11914            } else {
11915                // We're dealing with a component level state change
11916                // First, verify that this is a valid class name.
11917                PackageParser.Package pkg = pkgSetting.pkg;
11918                if (pkg == null || !pkg.hasComponentClassName(className)) {
11919                    if (pkg.applicationInfo.targetSdkVersion >= Build.VERSION_CODES.JELLY_BEAN) {
11920                        throw new IllegalArgumentException("Component class " + className
11921                                + " does not exist in " + packageName);
11922                    } else {
11923                        Slog.w(TAG, "Failed setComponentEnabledSetting: component class "
11924                                + className + " does not exist in " + packageName);
11925                    }
11926                }
11927                switch (newState) {
11928                case COMPONENT_ENABLED_STATE_ENABLED:
11929                    if (!pkgSetting.enableComponentLPw(className, userId)) {
11930                        return;
11931                    }
11932                    break;
11933                case COMPONENT_ENABLED_STATE_DISABLED:
11934                    if (!pkgSetting.disableComponentLPw(className, userId)) {
11935                        return;
11936                    }
11937                    break;
11938                case COMPONENT_ENABLED_STATE_DEFAULT:
11939                    if (!pkgSetting.restoreComponentLPw(className, userId)) {
11940                        return;
11941                    }
11942                    break;
11943                default:
11944                    Slog.e(TAG, "Invalid new component state: " + newState);
11945                    return;
11946                }
11947            }
11948            mSettings.writePackageRestrictionsLPr(userId);
11949            components = mPendingBroadcasts.get(userId, packageName);
11950            final boolean newPackage = components == null;
11951            if (newPackage) {
11952                components = new ArrayList<String>();
11953            }
11954            if (!components.contains(componentName)) {
11955                components.add(componentName);
11956            }
11957            if ((flags&PackageManager.DONT_KILL_APP) == 0) {
11958                sendNow = true;
11959                // Purge entry from pending broadcast list if another one exists already
11960                // since we are sending one right away.
11961                mPendingBroadcasts.remove(userId, packageName);
11962            } else {
11963                if (newPackage) {
11964                    mPendingBroadcasts.put(userId, packageName, components);
11965                }
11966                if (!mHandler.hasMessages(SEND_PENDING_BROADCAST)) {
11967                    // Schedule a message
11968                    mHandler.sendEmptyMessageDelayed(SEND_PENDING_BROADCAST, BROADCAST_DELAY);
11969                }
11970            }
11971        }
11972
11973        long callingId = Binder.clearCallingIdentity();
11974        try {
11975            if (sendNow) {
11976                packageUid = UserHandle.getUid(userId, pkgSetting.appId);
11977                sendPackageChangedBroadcast(packageName,
11978                        (flags&PackageManager.DONT_KILL_APP) != 0, components, packageUid);
11979            }
11980        } finally {
11981            Binder.restoreCallingIdentity(callingId);
11982        }
11983    }
11984
11985    private void sendPackageChangedBroadcast(String packageName,
11986            boolean killFlag, ArrayList<String> componentNames, int packageUid) {
11987        if (DEBUG_INSTALL)
11988            Log.v(TAG, "Sending package changed: package=" + packageName + " components="
11989                    + componentNames);
11990        Bundle extras = new Bundle(4);
11991        extras.putString(Intent.EXTRA_CHANGED_COMPONENT_NAME, componentNames.get(0));
11992        String nameList[] = new String[componentNames.size()];
11993        componentNames.toArray(nameList);
11994        extras.putStringArray(Intent.EXTRA_CHANGED_COMPONENT_NAME_LIST, nameList);
11995        extras.putBoolean(Intent.EXTRA_DONT_KILL_APP, killFlag);
11996        extras.putInt(Intent.EXTRA_UID, packageUid);
11997        sendPackageBroadcast(Intent.ACTION_PACKAGE_CHANGED,  packageName, extras, null, null,
11998                new int[] {UserHandle.getUserId(packageUid)});
11999    }
12000
12001    @Override
12002    public void setPackageStoppedState(String packageName, boolean stopped, int userId) {
12003        if (!sUserManager.exists(userId)) return;
12004        final int uid = Binder.getCallingUid();
12005        final int permission = mContext.checkCallingOrSelfPermission(
12006                android.Manifest.permission.CHANGE_COMPONENT_ENABLED_STATE);
12007        final boolean allowedByPermission = (permission == PackageManager.PERMISSION_GRANTED);
12008        enforceCrossUserPermission(uid, userId, true, true, "stop package");
12009        // writer
12010        synchronized (mPackages) {
12011            if (mSettings.setPackageStoppedStateLPw(packageName, stopped, allowedByPermission,
12012                    uid, userId)) {
12013                scheduleWritePackageRestrictionsLocked(userId);
12014            }
12015        }
12016    }
12017
12018    @Override
12019    public String getInstallerPackageName(String packageName) {
12020        // reader
12021        synchronized (mPackages) {
12022            return mSettings.getInstallerPackageNameLPr(packageName);
12023        }
12024    }
12025
12026    @Override
12027    public int getApplicationEnabledSetting(String packageName, int userId) {
12028        if (!sUserManager.exists(userId)) return COMPONENT_ENABLED_STATE_DISABLED;
12029        int uid = Binder.getCallingUid();
12030        enforceCrossUserPermission(uid, userId, false, false, "get enabled");
12031        // reader
12032        synchronized (mPackages) {
12033            return mSettings.getApplicationEnabledSettingLPr(packageName, userId);
12034        }
12035    }
12036
12037    @Override
12038    public int getComponentEnabledSetting(ComponentName componentName, int userId) {
12039        if (!sUserManager.exists(userId)) return COMPONENT_ENABLED_STATE_DISABLED;
12040        int uid = Binder.getCallingUid();
12041        enforceCrossUserPermission(uid, userId, false, false, "get component enabled");
12042        // reader
12043        synchronized (mPackages) {
12044            return mSettings.getComponentEnabledSettingLPr(componentName, userId);
12045        }
12046    }
12047
12048    @Override
12049    public void enterSafeMode() {
12050        enforceSystemOrRoot("Only the system can request entering safe mode");
12051
12052        if (!mSystemReady) {
12053            mSafeMode = true;
12054        }
12055    }
12056
12057    @Override
12058    public void systemReady() {
12059        mSystemReady = true;
12060
12061        // Read the compatibilty setting when the system is ready.
12062        boolean compatibilityModeEnabled = android.provider.Settings.Global.getInt(
12063                mContext.getContentResolver(),
12064                android.provider.Settings.Global.COMPATIBILITY_MODE, 1) == 1;
12065        PackageParser.setCompatibilityModeEnabled(compatibilityModeEnabled);
12066        if (DEBUG_SETTINGS) {
12067            Log.d(TAG, "compatibility mode:" + compatibilityModeEnabled);
12068        }
12069
12070        synchronized (mPackages) {
12071            // Verify that all of the preferred activity components actually
12072            // exist.  It is possible for applications to be updated and at
12073            // that point remove a previously declared activity component that
12074            // had been set as a preferred activity.  We try to clean this up
12075            // the next time we encounter that preferred activity, but it is
12076            // possible for the user flow to never be able to return to that
12077            // situation so here we do a sanity check to make sure we haven't
12078            // left any junk around.
12079            ArrayList<PreferredActivity> removed = new ArrayList<PreferredActivity>();
12080            for (int i=0; i<mSettings.mPreferredActivities.size(); i++) {
12081                PreferredIntentResolver pir = mSettings.mPreferredActivities.valueAt(i);
12082                removed.clear();
12083                for (PreferredActivity pa : pir.filterSet()) {
12084                    if (mActivities.mActivities.get(pa.mPref.mComponent) == null) {
12085                        removed.add(pa);
12086                    }
12087                }
12088                if (removed.size() > 0) {
12089                    for (int r=0; r<removed.size(); r++) {
12090                        PreferredActivity pa = removed.get(r);
12091                        Slog.w(TAG, "Removing dangling preferred activity: "
12092                                + pa.mPref.mComponent);
12093                        pir.removeFilter(pa);
12094                    }
12095                    mSettings.writePackageRestrictionsLPr(
12096                            mSettings.mPreferredActivities.keyAt(i));
12097                }
12098            }
12099        }
12100        sUserManager.systemReady();
12101
12102        // Kick off any messages waiting for system ready
12103        if (mPostSystemReadyMessages != null) {
12104            for (Message msg : mPostSystemReadyMessages) {
12105                msg.sendToTarget();
12106            }
12107            mPostSystemReadyMessages = null;
12108        }
12109    }
12110
12111    @Override
12112    public boolean isSafeMode() {
12113        return mSafeMode;
12114    }
12115
12116    @Override
12117    public boolean hasSystemUidErrors() {
12118        return mHasSystemUidErrors;
12119    }
12120
12121    static String arrayToString(int[] array) {
12122        StringBuffer buf = new StringBuffer(128);
12123        buf.append('[');
12124        if (array != null) {
12125            for (int i=0; i<array.length; i++) {
12126                if (i > 0) buf.append(", ");
12127                buf.append(array[i]);
12128            }
12129        }
12130        buf.append(']');
12131        return buf.toString();
12132    }
12133
12134    static class DumpState {
12135        public static final int DUMP_LIBS = 1 << 0;
12136        public static final int DUMP_FEATURES = 1 << 1;
12137        public static final int DUMP_RESOLVERS = 1 << 2;
12138        public static final int DUMP_PERMISSIONS = 1 << 3;
12139        public static final int DUMP_PACKAGES = 1 << 4;
12140        public static final int DUMP_SHARED_USERS = 1 << 5;
12141        public static final int DUMP_MESSAGES = 1 << 6;
12142        public static final int DUMP_PROVIDERS = 1 << 7;
12143        public static final int DUMP_VERIFIERS = 1 << 8;
12144        public static final int DUMP_PREFERRED = 1 << 9;
12145        public static final int DUMP_PREFERRED_XML = 1 << 10;
12146        public static final int DUMP_KEYSETS = 1 << 11;
12147        public static final int DUMP_VERSION = 1 << 12;
12148        public static final int DUMP_INSTALLS = 1 << 13;
12149
12150        public static final int OPTION_SHOW_FILTERS = 1 << 0;
12151
12152        private int mTypes;
12153
12154        private int mOptions;
12155
12156        private boolean mTitlePrinted;
12157
12158        private SharedUserSetting mSharedUser;
12159
12160        public boolean isDumping(int type) {
12161            if (mTypes == 0 && type != DUMP_PREFERRED_XML) {
12162                return true;
12163            }
12164
12165            return (mTypes & type) != 0;
12166        }
12167
12168        public void setDump(int type) {
12169            mTypes |= type;
12170        }
12171
12172        public boolean isOptionEnabled(int option) {
12173            return (mOptions & option) != 0;
12174        }
12175
12176        public void setOptionEnabled(int option) {
12177            mOptions |= option;
12178        }
12179
12180        public boolean onTitlePrinted() {
12181            final boolean printed = mTitlePrinted;
12182            mTitlePrinted = true;
12183            return printed;
12184        }
12185
12186        public boolean getTitlePrinted() {
12187            return mTitlePrinted;
12188        }
12189
12190        public void setTitlePrinted(boolean enabled) {
12191            mTitlePrinted = enabled;
12192        }
12193
12194        public SharedUserSetting getSharedUser() {
12195            return mSharedUser;
12196        }
12197
12198        public void setSharedUser(SharedUserSetting user) {
12199            mSharedUser = user;
12200        }
12201    }
12202
12203    @Override
12204    protected void dump(FileDescriptor fd, PrintWriter pw, String[] args) {
12205        if (mContext.checkCallingOrSelfPermission(android.Manifest.permission.DUMP)
12206                != PackageManager.PERMISSION_GRANTED) {
12207            pw.println("Permission Denial: can't dump ActivityManager from from pid="
12208                    + Binder.getCallingPid()
12209                    + ", uid=" + Binder.getCallingUid()
12210                    + " without permission "
12211                    + android.Manifest.permission.DUMP);
12212            return;
12213        }
12214
12215        DumpState dumpState = new DumpState();
12216        boolean fullPreferred = false;
12217        boolean checkin = false;
12218
12219        String packageName = null;
12220
12221        int opti = 0;
12222        while (opti < args.length) {
12223            String opt = args[opti];
12224            if (opt == null || opt.length() <= 0 || opt.charAt(0) != '-') {
12225                break;
12226            }
12227            opti++;
12228
12229            if ("-a".equals(opt)) {
12230                // Right now we only know how to print all.
12231            } else if ("-h".equals(opt)) {
12232                pw.println("Package manager dump options:");
12233                pw.println("  [-h] [-f] [--checkin] [cmd] ...");
12234                pw.println("    --checkin: dump for a checkin");
12235                pw.println("    -f: print details of intent filters");
12236                pw.println("    -h: print this help");
12237                pw.println("  cmd may be one of:");
12238                pw.println("    l[ibraries]: list known shared libraries");
12239                pw.println("    f[ibraries]: list device features");
12240                pw.println("    k[eysets]: print known keysets");
12241                pw.println("    r[esolvers]: dump intent resolvers");
12242                pw.println("    perm[issions]: dump permissions");
12243                pw.println("    pref[erred]: print preferred package settings");
12244                pw.println("    preferred-xml [--full]: print preferred package settings as xml");
12245                pw.println("    prov[iders]: dump content providers");
12246                pw.println("    p[ackages]: dump installed packages");
12247                pw.println("    s[hared-users]: dump shared user IDs");
12248                pw.println("    m[essages]: print collected runtime messages");
12249                pw.println("    v[erifiers]: print package verifier info");
12250                pw.println("    version: print database version info");
12251                pw.println("    write: write current settings now");
12252                pw.println("    <package.name>: info about given package");
12253                pw.println("    installs: details about install sessions");
12254                return;
12255            } else if ("--checkin".equals(opt)) {
12256                checkin = true;
12257            } else if ("-f".equals(opt)) {
12258                dumpState.setOptionEnabled(DumpState.OPTION_SHOW_FILTERS);
12259            } else {
12260                pw.println("Unknown argument: " + opt + "; use -h for help");
12261            }
12262        }
12263
12264        // Is the caller requesting to dump a particular piece of data?
12265        if (opti < args.length) {
12266            String cmd = args[opti];
12267            opti++;
12268            // Is this a package name?
12269            if ("android".equals(cmd) || cmd.contains(".")) {
12270                packageName = cmd;
12271                // When dumping a single package, we always dump all of its
12272                // filter information since the amount of data will be reasonable.
12273                dumpState.setOptionEnabled(DumpState.OPTION_SHOW_FILTERS);
12274            } else if ("l".equals(cmd) || "libraries".equals(cmd)) {
12275                dumpState.setDump(DumpState.DUMP_LIBS);
12276            } else if ("f".equals(cmd) || "features".equals(cmd)) {
12277                dumpState.setDump(DumpState.DUMP_FEATURES);
12278            } else if ("r".equals(cmd) || "resolvers".equals(cmd)) {
12279                dumpState.setDump(DumpState.DUMP_RESOLVERS);
12280            } else if ("perm".equals(cmd) || "permissions".equals(cmd)) {
12281                dumpState.setDump(DumpState.DUMP_PERMISSIONS);
12282            } else if ("pref".equals(cmd) || "preferred".equals(cmd)) {
12283                dumpState.setDump(DumpState.DUMP_PREFERRED);
12284            } else if ("preferred-xml".equals(cmd)) {
12285                dumpState.setDump(DumpState.DUMP_PREFERRED_XML);
12286                if (opti < args.length && "--full".equals(args[opti])) {
12287                    fullPreferred = true;
12288                    opti++;
12289                }
12290            } else if ("p".equals(cmd) || "packages".equals(cmd)) {
12291                dumpState.setDump(DumpState.DUMP_PACKAGES);
12292            } else if ("s".equals(cmd) || "shared-users".equals(cmd)) {
12293                dumpState.setDump(DumpState.DUMP_SHARED_USERS);
12294            } else if ("prov".equals(cmd) || "providers".equals(cmd)) {
12295                dumpState.setDump(DumpState.DUMP_PROVIDERS);
12296            } else if ("m".equals(cmd) || "messages".equals(cmd)) {
12297                dumpState.setDump(DumpState.DUMP_MESSAGES);
12298            } else if ("v".equals(cmd) || "verifiers".equals(cmd)) {
12299                dumpState.setDump(DumpState.DUMP_VERIFIERS);
12300            } else if ("version".equals(cmd)) {
12301                dumpState.setDump(DumpState.DUMP_VERSION);
12302            } else if ("k".equals(cmd) || "keysets".equals(cmd)) {
12303                dumpState.setDump(DumpState.DUMP_KEYSETS);
12304            } else if ("installs".equals(cmd)) {
12305                dumpState.setDump(DumpState.DUMP_INSTALLS);
12306            } else if ("write".equals(cmd)) {
12307                synchronized (mPackages) {
12308                    mSettings.writeLPr();
12309                    pw.println("Settings written.");
12310                    return;
12311                }
12312            }
12313        }
12314
12315        if (checkin) {
12316            pw.println("vers,1");
12317        }
12318
12319        // reader
12320        synchronized (mPackages) {
12321            if (dumpState.isDumping(DumpState.DUMP_VERSION) && packageName == null) {
12322                if (!checkin) {
12323                    if (dumpState.onTitlePrinted())
12324                        pw.println();
12325                    pw.println("Database versions:");
12326                    pw.print("  SDK Version:");
12327                    pw.print(" internal=");
12328                    pw.print(mSettings.mInternalSdkPlatform);
12329                    pw.print(" external=");
12330                    pw.println(mSettings.mExternalSdkPlatform);
12331                    pw.print("  DB Version:");
12332                    pw.print(" internal=");
12333                    pw.print(mSettings.mInternalDatabaseVersion);
12334                    pw.print(" external=");
12335                    pw.println(mSettings.mExternalDatabaseVersion);
12336                }
12337            }
12338
12339            if (dumpState.isDumping(DumpState.DUMP_VERIFIERS) && packageName == null) {
12340                if (!checkin) {
12341                    if (dumpState.onTitlePrinted())
12342                        pw.println();
12343                    pw.println("Verifiers:");
12344                    pw.print("  Required: ");
12345                    pw.print(mRequiredVerifierPackage);
12346                    pw.print(" (uid=");
12347                    pw.print(getPackageUid(mRequiredVerifierPackage, 0));
12348                    pw.println(")");
12349                } else if (mRequiredVerifierPackage != null) {
12350                    pw.print("vrfy,"); pw.print(mRequiredVerifierPackage);
12351                    pw.print(","); pw.println(getPackageUid(mRequiredVerifierPackage, 0));
12352                }
12353            }
12354
12355            if (dumpState.isDumping(DumpState.DUMP_LIBS) && packageName == null) {
12356                boolean printedHeader = false;
12357                final Iterator<String> it = mSharedLibraries.keySet().iterator();
12358                while (it.hasNext()) {
12359                    String name = it.next();
12360                    SharedLibraryEntry ent = mSharedLibraries.get(name);
12361                    if (!checkin) {
12362                        if (!printedHeader) {
12363                            if (dumpState.onTitlePrinted())
12364                                pw.println();
12365                            pw.println("Libraries:");
12366                            printedHeader = true;
12367                        }
12368                        pw.print("  ");
12369                    } else {
12370                        pw.print("lib,");
12371                    }
12372                    pw.print(name);
12373                    if (!checkin) {
12374                        pw.print(" -> ");
12375                    }
12376                    if (ent.path != null) {
12377                        if (!checkin) {
12378                            pw.print("(jar) ");
12379                            pw.print(ent.path);
12380                        } else {
12381                            pw.print(",jar,");
12382                            pw.print(ent.path);
12383                        }
12384                    } else {
12385                        if (!checkin) {
12386                            pw.print("(apk) ");
12387                            pw.print(ent.apk);
12388                        } else {
12389                            pw.print(",apk,");
12390                            pw.print(ent.apk);
12391                        }
12392                    }
12393                    pw.println();
12394                }
12395            }
12396
12397            if (dumpState.isDumping(DumpState.DUMP_FEATURES) && packageName == null) {
12398                if (dumpState.onTitlePrinted())
12399                    pw.println();
12400                if (!checkin) {
12401                    pw.println("Features:");
12402                }
12403                Iterator<String> it = mAvailableFeatures.keySet().iterator();
12404                while (it.hasNext()) {
12405                    String name = it.next();
12406                    if (!checkin) {
12407                        pw.print("  ");
12408                    } else {
12409                        pw.print("feat,");
12410                    }
12411                    pw.println(name);
12412                }
12413            }
12414
12415            if (!checkin && dumpState.isDumping(DumpState.DUMP_RESOLVERS)) {
12416                if (mActivities.dump(pw, dumpState.getTitlePrinted() ? "\nActivity Resolver Table:"
12417                        : "Activity Resolver Table:", "  ", packageName,
12418                        dumpState.isOptionEnabled(DumpState.OPTION_SHOW_FILTERS), true)) {
12419                    dumpState.setTitlePrinted(true);
12420                }
12421                if (mReceivers.dump(pw, dumpState.getTitlePrinted() ? "\nReceiver Resolver Table:"
12422                        : "Receiver Resolver Table:", "  ", packageName,
12423                        dumpState.isOptionEnabled(DumpState.OPTION_SHOW_FILTERS), true)) {
12424                    dumpState.setTitlePrinted(true);
12425                }
12426                if (mServices.dump(pw, dumpState.getTitlePrinted() ? "\nService Resolver Table:"
12427                        : "Service Resolver Table:", "  ", packageName,
12428                        dumpState.isOptionEnabled(DumpState.OPTION_SHOW_FILTERS), true)) {
12429                    dumpState.setTitlePrinted(true);
12430                }
12431                if (mProviders.dump(pw, dumpState.getTitlePrinted() ? "\nProvider Resolver Table:"
12432                        : "Provider Resolver Table:", "  ", packageName,
12433                        dumpState.isOptionEnabled(DumpState.OPTION_SHOW_FILTERS), true)) {
12434                    dumpState.setTitlePrinted(true);
12435                }
12436            }
12437
12438            if (!checkin && dumpState.isDumping(DumpState.DUMP_PREFERRED)) {
12439                for (int i=0; i<mSettings.mPreferredActivities.size(); i++) {
12440                    PreferredIntentResolver pir = mSettings.mPreferredActivities.valueAt(i);
12441                    int user = mSettings.mPreferredActivities.keyAt(i);
12442                    if (pir.dump(pw,
12443                            dumpState.getTitlePrinted()
12444                                ? "\nPreferred Activities User " + user + ":"
12445                                : "Preferred Activities User " + user + ":", "  ",
12446                            packageName, true, false)) {
12447                        dumpState.setTitlePrinted(true);
12448                    }
12449                }
12450            }
12451
12452            if (!checkin && dumpState.isDumping(DumpState.DUMP_PREFERRED_XML)) {
12453                pw.flush();
12454                FileOutputStream fout = new FileOutputStream(fd);
12455                BufferedOutputStream str = new BufferedOutputStream(fout);
12456                XmlSerializer serializer = new FastXmlSerializer();
12457                try {
12458                    serializer.setOutput(str, "utf-8");
12459                    serializer.startDocument(null, true);
12460                    serializer.setFeature(
12461                            "http://xmlpull.org/v1/doc/features.html#indent-output", true);
12462                    mSettings.writePreferredActivitiesLPr(serializer, 0, fullPreferred);
12463                    serializer.endDocument();
12464                    serializer.flush();
12465                } catch (IllegalArgumentException e) {
12466                    pw.println("Failed writing: " + e);
12467                } catch (IllegalStateException e) {
12468                    pw.println("Failed writing: " + e);
12469                } catch (IOException e) {
12470                    pw.println("Failed writing: " + e);
12471                }
12472            }
12473
12474            if (!checkin && dumpState.isDumping(DumpState.DUMP_PERMISSIONS)) {
12475                mSettings.dumpPermissionsLPr(pw, packageName, dumpState);
12476                if (packageName == null) {
12477                    for (int iperm=0; iperm<mAppOpPermissionPackages.size(); iperm++) {
12478                        if (iperm == 0) {
12479                            if (dumpState.onTitlePrinted())
12480                                pw.println();
12481                            pw.println("AppOp Permissions:");
12482                        }
12483                        pw.print("  AppOp Permission ");
12484                        pw.print(mAppOpPermissionPackages.keyAt(iperm));
12485                        pw.println(":");
12486                        ArraySet<String> pkgs = mAppOpPermissionPackages.valueAt(iperm);
12487                        for (int ipkg=0; ipkg<pkgs.size(); ipkg++) {
12488                            pw.print("    "); pw.println(pkgs.valueAt(ipkg));
12489                        }
12490                    }
12491                }
12492            }
12493
12494            if (!checkin && dumpState.isDumping(DumpState.DUMP_PROVIDERS)) {
12495                boolean printedSomething = false;
12496                for (PackageParser.Provider p : mProviders.mProviders.values()) {
12497                    if (packageName != null && !packageName.equals(p.info.packageName)) {
12498                        continue;
12499                    }
12500                    if (!printedSomething) {
12501                        if (dumpState.onTitlePrinted())
12502                            pw.println();
12503                        pw.println("Registered ContentProviders:");
12504                        printedSomething = true;
12505                    }
12506                    pw.print("  "); p.printComponentShortName(pw); pw.println(":");
12507                    pw.print("    "); pw.println(p.toString());
12508                }
12509                printedSomething = false;
12510                for (Map.Entry<String, PackageParser.Provider> entry :
12511                        mProvidersByAuthority.entrySet()) {
12512                    PackageParser.Provider p = entry.getValue();
12513                    if (packageName != null && !packageName.equals(p.info.packageName)) {
12514                        continue;
12515                    }
12516                    if (!printedSomething) {
12517                        if (dumpState.onTitlePrinted())
12518                            pw.println();
12519                        pw.println("ContentProvider Authorities:");
12520                        printedSomething = true;
12521                    }
12522                    pw.print("  ["); pw.print(entry.getKey()); pw.println("]:");
12523                    pw.print("    "); pw.println(p.toString());
12524                    if (p.info != null && p.info.applicationInfo != null) {
12525                        final String appInfo = p.info.applicationInfo.toString();
12526                        pw.print("      applicationInfo="); pw.println(appInfo);
12527                    }
12528                }
12529            }
12530
12531            if (!checkin && dumpState.isDumping(DumpState.DUMP_KEYSETS)) {
12532                mSettings.mKeySetManagerService.dumpLPr(pw, packageName, dumpState);
12533            }
12534
12535            if (dumpState.isDumping(DumpState.DUMP_PACKAGES)) {
12536                mSettings.dumpPackagesLPr(pw, packageName, dumpState, checkin);
12537            }
12538
12539            if (dumpState.isDumping(DumpState.DUMP_SHARED_USERS)) {
12540                mSettings.dumpSharedUsersLPr(pw, packageName, dumpState, checkin);
12541            }
12542
12543            if (!checkin && dumpState.isDumping(DumpState.DUMP_INSTALLS) && packageName == null) {
12544                // XXX should handle packageName != null by dumping only install data that
12545                // the given package is involved with.
12546                if (dumpState.onTitlePrinted()) pw.println();
12547                mInstallerService.dump(new IndentingPrintWriter(pw, "  ", 120));
12548            }
12549
12550            if (!checkin && dumpState.isDumping(DumpState.DUMP_MESSAGES) && packageName == null) {
12551                if (dumpState.onTitlePrinted()) pw.println();
12552                mSettings.dumpReadMessagesLPr(pw, dumpState);
12553
12554                pw.println();
12555                pw.println("Package warning messages:");
12556                BufferedReader in = null;
12557                String line = null;
12558                try {
12559                    in = new BufferedReader(new FileReader(getSettingsProblemFile()));
12560                    while ((line = in.readLine()) != null) {
12561                        if (line.contains("ignored: updated version")) continue;
12562                        pw.println(line);
12563                    }
12564                } catch (IOException ignored) {
12565                } finally {
12566                    IoUtils.closeQuietly(in);
12567                }
12568            }
12569
12570            if (checkin && dumpState.isDumping(DumpState.DUMP_MESSAGES)) {
12571                BufferedReader in = null;
12572                String line = null;
12573                try {
12574                    in = new BufferedReader(new FileReader(getSettingsProblemFile()));
12575                    while ((line = in.readLine()) != null) {
12576                        if (line.contains("ignored: updated version")) continue;
12577                        pw.print("msg,");
12578                        pw.println(line);
12579                    }
12580                } catch (IOException ignored) {
12581                } finally {
12582                    IoUtils.closeQuietly(in);
12583                }
12584            }
12585        }
12586    }
12587
12588    // ------- apps on sdcard specific code -------
12589    static final boolean DEBUG_SD_INSTALL = false;
12590
12591    private static final String SD_ENCRYPTION_KEYSTORE_NAME = "AppsOnSD";
12592
12593    private static final String SD_ENCRYPTION_ALGORITHM = "AES";
12594
12595    private boolean mMediaMounted = false;
12596
12597    static String getEncryptKey() {
12598        try {
12599            String sdEncKey = SystemKeyStore.getInstance().retrieveKeyHexString(
12600                    SD_ENCRYPTION_KEYSTORE_NAME);
12601            if (sdEncKey == null) {
12602                sdEncKey = SystemKeyStore.getInstance().generateNewKeyHexString(128,
12603                        SD_ENCRYPTION_ALGORITHM, SD_ENCRYPTION_KEYSTORE_NAME);
12604                if (sdEncKey == null) {
12605                    Slog.e(TAG, "Failed to create encryption keys");
12606                    return null;
12607                }
12608            }
12609            return sdEncKey;
12610        } catch (NoSuchAlgorithmException nsae) {
12611            Slog.e(TAG, "Failed to create encryption keys with exception: " + nsae);
12612            return null;
12613        } catch (IOException ioe) {
12614            Slog.e(TAG, "Failed to retrieve encryption keys with exception: " + ioe);
12615            return null;
12616        }
12617    }
12618
12619    /*
12620     * Update media status on PackageManager.
12621     */
12622    @Override
12623    public void updateExternalMediaStatus(final boolean mediaStatus, final boolean reportStatus) {
12624        int callingUid = Binder.getCallingUid();
12625        if (callingUid != 0 && callingUid != Process.SYSTEM_UID) {
12626            throw new SecurityException("Media status can only be updated by the system");
12627        }
12628        // reader; this apparently protects mMediaMounted, but should probably
12629        // be a different lock in that case.
12630        synchronized (mPackages) {
12631            Log.i(TAG, "Updating external media status from "
12632                    + (mMediaMounted ? "mounted" : "unmounted") + " to "
12633                    + (mediaStatus ? "mounted" : "unmounted"));
12634            if (DEBUG_SD_INSTALL)
12635                Log.i(TAG, "updateExternalMediaStatus:: mediaStatus=" + mediaStatus
12636                        + ", mMediaMounted=" + mMediaMounted);
12637            if (mediaStatus == mMediaMounted) {
12638                final Message msg = mHandler.obtainMessage(UPDATED_MEDIA_STATUS, reportStatus ? 1
12639                        : 0, -1);
12640                mHandler.sendMessage(msg);
12641                return;
12642            }
12643            mMediaMounted = mediaStatus;
12644        }
12645        // Queue up an async operation since the package installation may take a
12646        // little while.
12647        mHandler.post(new Runnable() {
12648            public void run() {
12649                updateExternalMediaStatusInner(mediaStatus, reportStatus, true);
12650            }
12651        });
12652    }
12653
12654    /**
12655     * Called by MountService when the initial ASECs to scan are available.
12656     * Should block until all the ASEC containers are finished being scanned.
12657     */
12658    public void scanAvailableAsecs() {
12659        updateExternalMediaStatusInner(true, false, false);
12660        if (mShouldRestoreconData) {
12661            SELinuxMMAC.setRestoreconDone();
12662            mShouldRestoreconData = false;
12663        }
12664    }
12665
12666    /*
12667     * Collect information of applications on external media, map them against
12668     * existing containers and update information based on current mount status.
12669     * Please note that we always have to report status if reportStatus has been
12670     * set to true especially when unloading packages.
12671     */
12672    private void updateExternalMediaStatusInner(boolean isMounted, boolean reportStatus,
12673            boolean externalStorage) {
12674        ArrayMap<AsecInstallArgs, String> processCids = new ArrayMap<>();
12675        int[] uidArr = EmptyArray.INT;
12676
12677        final String[] list = PackageHelper.getSecureContainerList();
12678        if (ArrayUtils.isEmpty(list)) {
12679            Log.i(TAG, "No secure containers found");
12680        } else {
12681            // Process list of secure containers and categorize them
12682            // as active or stale based on their package internal state.
12683
12684            // reader
12685            synchronized (mPackages) {
12686                for (String cid : list) {
12687                    // Leave stages untouched for now; installer service owns them
12688                    if (PackageInstallerService.isStageName(cid)) continue;
12689
12690                    if (DEBUG_SD_INSTALL)
12691                        Log.i(TAG, "Processing container " + cid);
12692                    String pkgName = getAsecPackageName(cid);
12693                    if (pkgName == null) {
12694                        Slog.i(TAG, "Found stale container " + cid + " with no package name");
12695                        continue;
12696                    }
12697                    if (DEBUG_SD_INSTALL)
12698                        Log.i(TAG, "Looking for pkg : " + pkgName);
12699
12700                    final PackageSetting ps = mSettings.mPackages.get(pkgName);
12701                    if (ps == null) {
12702                        Slog.i(TAG, "Found stale container " + cid + " with no matching settings");
12703                        continue;
12704                    }
12705
12706                    /*
12707                     * Skip packages that are not external if we're unmounting
12708                     * external storage.
12709                     */
12710                    if (externalStorage && !isMounted && !isExternal(ps)) {
12711                        continue;
12712                    }
12713
12714                    final AsecInstallArgs args = new AsecInstallArgs(cid,
12715                            getAppDexInstructionSets(ps), ps.isForwardLocked());
12716                    // The package status is changed only if the code path
12717                    // matches between settings and the container id.
12718                    if (ps.codePathString != null
12719                            && ps.codePathString.startsWith(args.getCodePath())) {
12720                        if (DEBUG_SD_INSTALL) {
12721                            Log.i(TAG, "Container : " + cid + " corresponds to pkg : " + pkgName
12722                                    + " at code path: " + ps.codePathString);
12723                        }
12724
12725                        // We do have a valid package installed on sdcard
12726                        processCids.put(args, ps.codePathString);
12727                        final int uid = ps.appId;
12728                        if (uid != -1) {
12729                            uidArr = ArrayUtils.appendInt(uidArr, uid);
12730                        }
12731                    } else {
12732                        Slog.i(TAG, "Found stale container " + cid + ": expected codePath="
12733                                + ps.codePathString);
12734                    }
12735                }
12736            }
12737
12738            Arrays.sort(uidArr);
12739        }
12740
12741        // Process packages with valid entries.
12742        if (isMounted) {
12743            if (DEBUG_SD_INSTALL)
12744                Log.i(TAG, "Loading packages");
12745            loadMediaPackages(processCids, uidArr);
12746            startCleaningPackages();
12747            mInstallerService.onSecureContainersAvailable();
12748        } else {
12749            if (DEBUG_SD_INSTALL)
12750                Log.i(TAG, "Unloading packages");
12751            unloadMediaPackages(processCids, uidArr, reportStatus);
12752        }
12753    }
12754
12755    private void sendResourcesChangedBroadcast(boolean mediaStatus, boolean replacing,
12756            ArrayList<String> pkgList, int uidArr[], IIntentReceiver finishedReceiver) {
12757        int size = pkgList.size();
12758        if (size > 0) {
12759            // Send broadcasts here
12760            Bundle extras = new Bundle();
12761            extras.putStringArray(Intent.EXTRA_CHANGED_PACKAGE_LIST, pkgList
12762                    .toArray(new String[size]));
12763            if (uidArr != null) {
12764                extras.putIntArray(Intent.EXTRA_CHANGED_UID_LIST, uidArr);
12765            }
12766            if (replacing) {
12767                extras.putBoolean(Intent.EXTRA_REPLACING, replacing);
12768            }
12769            String action = mediaStatus ? Intent.ACTION_EXTERNAL_APPLICATIONS_AVAILABLE
12770                    : Intent.ACTION_EXTERNAL_APPLICATIONS_UNAVAILABLE;
12771            sendPackageBroadcast(action, null, extras, null, finishedReceiver, null);
12772        }
12773    }
12774
12775   /*
12776     * Look at potentially valid container ids from processCids If package
12777     * information doesn't match the one on record or package scanning fails,
12778     * the cid is added to list of removeCids. We currently don't delete stale
12779     * containers.
12780     */
12781    private void loadMediaPackages(ArrayMap<AsecInstallArgs, String> processCids, int[] uidArr) {
12782        ArrayList<String> pkgList = new ArrayList<String>();
12783        Set<AsecInstallArgs> keys = processCids.keySet();
12784
12785        for (AsecInstallArgs args : keys) {
12786            String codePath = processCids.get(args);
12787            if (DEBUG_SD_INSTALL)
12788                Log.i(TAG, "Loading container : " + args.cid);
12789            int retCode = PackageManager.INSTALL_FAILED_CONTAINER_ERROR;
12790            try {
12791                // Make sure there are no container errors first.
12792                if (args.doPreInstall(PackageManager.INSTALL_SUCCEEDED) != PackageManager.INSTALL_SUCCEEDED) {
12793                    Slog.e(TAG, "Failed to mount cid : " + args.cid
12794                            + " when installing from sdcard");
12795                    continue;
12796                }
12797                // Check code path here.
12798                if (codePath == null || !codePath.startsWith(args.getCodePath())) {
12799                    Slog.e(TAG, "Container " + args.cid + " cachepath " + args.getCodePath()
12800                            + " does not match one in settings " + codePath);
12801                    continue;
12802                }
12803                // Parse package
12804                int parseFlags = mDefParseFlags;
12805                if (args.isExternal()) {
12806                    parseFlags |= PackageParser.PARSE_ON_SDCARD;
12807                }
12808                if (args.isFwdLocked()) {
12809                    parseFlags |= PackageParser.PARSE_FORWARD_LOCK;
12810                }
12811
12812                synchronized (mInstallLock) {
12813                    PackageParser.Package pkg = null;
12814                    try {
12815                        pkg = scanPackageLI(new File(codePath), parseFlags, 0, 0, null);
12816                    } catch (PackageManagerException e) {
12817                        Slog.w(TAG, "Failed to scan " + codePath + ": " + e.getMessage());
12818                    }
12819                    // Scan the package
12820                    if (pkg != null) {
12821                        /*
12822                         * TODO why is the lock being held? doPostInstall is
12823                         * called in other places without the lock. This needs
12824                         * to be straightened out.
12825                         */
12826                        // writer
12827                        synchronized (mPackages) {
12828                            retCode = PackageManager.INSTALL_SUCCEEDED;
12829                            pkgList.add(pkg.packageName);
12830                            // Post process args
12831                            args.doPostInstall(PackageManager.INSTALL_SUCCEEDED,
12832                                    pkg.applicationInfo.uid);
12833                        }
12834                    } else {
12835                        Slog.i(TAG, "Failed to install pkg from  " + codePath + " from sdcard");
12836                    }
12837                }
12838
12839            } finally {
12840                if (retCode != PackageManager.INSTALL_SUCCEEDED) {
12841                    Log.w(TAG, "Container " + args.cid + " is stale, retCode=" + retCode);
12842                }
12843            }
12844        }
12845        // writer
12846        synchronized (mPackages) {
12847            // If the platform SDK has changed since the last time we booted,
12848            // we need to re-grant app permission to catch any new ones that
12849            // appear. This is really a hack, and means that apps can in some
12850            // cases get permissions that the user didn't initially explicitly
12851            // allow... it would be nice to have some better way to handle
12852            // this situation.
12853            final boolean regrantPermissions = mSettings.mExternalSdkPlatform != mSdkVersion;
12854            if (regrantPermissions)
12855                Slog.i(TAG, "Platform changed from " + mSettings.mExternalSdkPlatform + " to "
12856                        + mSdkVersion + "; regranting permissions for external storage");
12857            mSettings.mExternalSdkPlatform = mSdkVersion;
12858
12859            // Make sure group IDs have been assigned, and any permission
12860            // changes in other apps are accounted for
12861            updatePermissionsLPw(null, null, UPDATE_PERMISSIONS_ALL
12862                    | (regrantPermissions
12863                            ? (UPDATE_PERMISSIONS_REPLACE_PKG|UPDATE_PERMISSIONS_REPLACE_ALL)
12864                            : 0));
12865
12866            mSettings.updateExternalDatabaseVersion();
12867
12868            // can downgrade to reader
12869            // Persist settings
12870            mSettings.writeLPr();
12871        }
12872        // Send a broadcast to let everyone know we are done processing
12873        if (pkgList.size() > 0) {
12874            sendResourcesChangedBroadcast(true, false, pkgList, uidArr, null);
12875        }
12876    }
12877
12878   /*
12879     * Utility method to unload a list of specified containers
12880     */
12881    private void unloadAllContainers(Set<AsecInstallArgs> cidArgs) {
12882        // Just unmount all valid containers.
12883        for (AsecInstallArgs arg : cidArgs) {
12884            synchronized (mInstallLock) {
12885                arg.doPostDeleteLI(false);
12886           }
12887       }
12888   }
12889
12890    /*
12891     * Unload packages mounted on external media. This involves deleting package
12892     * data from internal structures, sending broadcasts about diabled packages,
12893     * gc'ing to free up references, unmounting all secure containers
12894     * corresponding to packages on external media, and posting a
12895     * UPDATED_MEDIA_STATUS message if status has been requested. Please note
12896     * that we always have to post this message if status has been requested no
12897     * matter what.
12898     */
12899    private void unloadMediaPackages(ArrayMap<AsecInstallArgs, String> processCids, int uidArr[],
12900            final boolean reportStatus) {
12901        if (DEBUG_SD_INSTALL)
12902            Log.i(TAG, "unloading media packages");
12903        ArrayList<String> pkgList = new ArrayList<String>();
12904        ArrayList<AsecInstallArgs> failedList = new ArrayList<AsecInstallArgs>();
12905        final Set<AsecInstallArgs> keys = processCids.keySet();
12906        for (AsecInstallArgs args : keys) {
12907            String pkgName = args.getPackageName();
12908            if (DEBUG_SD_INSTALL)
12909                Log.i(TAG, "Trying to unload pkg : " + pkgName);
12910            // Delete package internally
12911            PackageRemovedInfo outInfo = new PackageRemovedInfo();
12912            synchronized (mInstallLock) {
12913                boolean res = deletePackageLI(pkgName, null, false, null, null,
12914                        PackageManager.DELETE_KEEP_DATA, outInfo, false);
12915                if (res) {
12916                    pkgList.add(pkgName);
12917                } else {
12918                    Slog.e(TAG, "Failed to delete pkg from sdcard : " + pkgName);
12919                    failedList.add(args);
12920                }
12921            }
12922        }
12923
12924        // reader
12925        synchronized (mPackages) {
12926            // We didn't update the settings after removing each package;
12927            // write them now for all packages.
12928            mSettings.writeLPr();
12929        }
12930
12931        // We have to absolutely send UPDATED_MEDIA_STATUS only
12932        // after confirming that all the receivers processed the ordered
12933        // broadcast when packages get disabled, force a gc to clean things up.
12934        // and unload all the containers.
12935        if (pkgList.size() > 0) {
12936            sendResourcesChangedBroadcast(false, false, pkgList, uidArr,
12937                    new IIntentReceiver.Stub() {
12938                public void performReceive(Intent intent, int resultCode, String data,
12939                        Bundle extras, boolean ordered, boolean sticky,
12940                        int sendingUser) throws RemoteException {
12941                    Message msg = mHandler.obtainMessage(UPDATED_MEDIA_STATUS,
12942                            reportStatus ? 1 : 0, 1, keys);
12943                    mHandler.sendMessage(msg);
12944                }
12945            });
12946        } else {
12947            Message msg = mHandler.obtainMessage(UPDATED_MEDIA_STATUS, reportStatus ? 1 : 0, -1,
12948                    keys);
12949            mHandler.sendMessage(msg);
12950        }
12951    }
12952
12953    /** Binder call */
12954    @Override
12955    public void movePackage(final String packageName, final IPackageMoveObserver observer,
12956            final int flags) {
12957        mContext.enforceCallingOrSelfPermission(android.Manifest.permission.MOVE_PACKAGE, null);
12958        UserHandle user = new UserHandle(UserHandle.getCallingUserId());
12959        int returnCode = PackageManager.MOVE_SUCCEEDED;
12960        int currInstallFlags = 0;
12961        int newInstallFlags = 0;
12962
12963        File codeFile = null;
12964        String installerPackageName = null;
12965        String packageAbiOverride = null;
12966
12967        // reader
12968        synchronized (mPackages) {
12969            final PackageParser.Package pkg = mPackages.get(packageName);
12970            final PackageSetting ps = mSettings.mPackages.get(packageName);
12971            if (pkg == null || ps == null) {
12972                returnCode = PackageManager.MOVE_FAILED_DOESNT_EXIST;
12973            } else {
12974                // Disable moving fwd locked apps and system packages
12975                if (pkg.applicationInfo != null && isSystemApp(pkg)) {
12976                    Slog.w(TAG, "Cannot move system application");
12977                    returnCode = PackageManager.MOVE_FAILED_SYSTEM_PACKAGE;
12978                } else if (pkg.mOperationPending) {
12979                    Slog.w(TAG, "Attempt to move package which has pending operations");
12980                    returnCode = PackageManager.MOVE_FAILED_OPERATION_PENDING;
12981                } else {
12982                    // Find install location first
12983                    if ((flags & PackageManager.MOVE_EXTERNAL_MEDIA) != 0
12984                            && (flags & PackageManager.MOVE_INTERNAL) != 0) {
12985                        Slog.w(TAG, "Ambigous flags specified for move location.");
12986                        returnCode = PackageManager.MOVE_FAILED_INVALID_LOCATION;
12987                    } else {
12988                        newInstallFlags = (flags & PackageManager.MOVE_EXTERNAL_MEDIA) != 0
12989                                ? PackageManager.INSTALL_EXTERNAL : PackageManager.INSTALL_INTERNAL;
12990                        currInstallFlags = isExternal(pkg)
12991                                ? PackageManager.INSTALL_EXTERNAL : PackageManager.INSTALL_INTERNAL;
12992
12993                        if (newInstallFlags == currInstallFlags) {
12994                            Slog.w(TAG, "No move required. Trying to move to same location");
12995                            returnCode = PackageManager.MOVE_FAILED_INVALID_LOCATION;
12996                        } else {
12997                            if (pkg.isForwardLocked()) {
12998                                currInstallFlags |= PackageManager.INSTALL_FORWARD_LOCK;
12999                                newInstallFlags |= PackageManager.INSTALL_FORWARD_LOCK;
13000                            }
13001                        }
13002                    }
13003                    if (returnCode == PackageManager.MOVE_SUCCEEDED) {
13004                        pkg.mOperationPending = true;
13005                    }
13006                }
13007
13008                codeFile = new File(pkg.codePath);
13009                installerPackageName = ps.installerPackageName;
13010                packageAbiOverride = ps.cpuAbiOverrideString;
13011            }
13012        }
13013
13014        if (returnCode != PackageManager.MOVE_SUCCEEDED) {
13015            try {
13016                observer.packageMoved(packageName, returnCode);
13017            } catch (RemoteException ignored) {
13018            }
13019            return;
13020        }
13021
13022        final IPackageInstallObserver2 installObserver = new IPackageInstallObserver2.Stub() {
13023            @Override
13024            public void onUserActionRequired(Intent intent) throws RemoteException {
13025                throw new IllegalStateException();
13026            }
13027
13028            @Override
13029            public void onPackageInstalled(String basePackageName, int returnCode, String msg,
13030                    Bundle extras) throws RemoteException {
13031                Slog.d(TAG, "Install result for move: "
13032                        + PackageManager.installStatusToString(returnCode, msg));
13033
13034                // We usually have a new package now after the install, but if
13035                // we failed we need to clear the pending flag on the original
13036                // package object.
13037                synchronized (mPackages) {
13038                    final PackageParser.Package pkg = mPackages.get(packageName);
13039                    if (pkg != null) {
13040                        pkg.mOperationPending = false;
13041                    }
13042                }
13043
13044                final int status = PackageManager.installStatusToPublicStatus(returnCode);
13045                switch (status) {
13046                    case PackageInstaller.STATUS_SUCCESS:
13047                        observer.packageMoved(packageName, PackageManager.MOVE_SUCCEEDED);
13048                        break;
13049                    case PackageInstaller.STATUS_FAILURE_STORAGE:
13050                        observer.packageMoved(packageName, PackageManager.MOVE_FAILED_INSUFFICIENT_STORAGE);
13051                        break;
13052                    default:
13053                        observer.packageMoved(packageName, PackageManager.MOVE_FAILED_INTERNAL_ERROR);
13054                        break;
13055                }
13056            }
13057        };
13058
13059        // Treat a move like reinstalling an existing app, which ensures that we
13060        // process everythign uniformly, like unpacking native libraries.
13061        newInstallFlags |= PackageManager.INSTALL_REPLACE_EXISTING;
13062
13063        final Message msg = mHandler.obtainMessage(INIT_COPY);
13064        final OriginInfo origin = OriginInfo.fromExistingFile(codeFile);
13065        msg.obj = new InstallParams(origin, installObserver, newInstallFlags,
13066                installerPackageName, null, user, packageAbiOverride);
13067        mHandler.sendMessage(msg);
13068    }
13069
13070    @Override
13071    public boolean setInstallLocation(int loc) {
13072        mContext.enforceCallingOrSelfPermission(android.Manifest.permission.WRITE_SECURE_SETTINGS,
13073                null);
13074        if (getInstallLocation() == loc) {
13075            return true;
13076        }
13077        if (loc == PackageHelper.APP_INSTALL_AUTO || loc == PackageHelper.APP_INSTALL_INTERNAL
13078                || loc == PackageHelper.APP_INSTALL_EXTERNAL) {
13079            android.provider.Settings.Global.putInt(mContext.getContentResolver(),
13080                    android.provider.Settings.Global.DEFAULT_INSTALL_LOCATION, loc);
13081            return true;
13082        }
13083        return false;
13084   }
13085
13086    @Override
13087    public int getInstallLocation() {
13088        return android.provider.Settings.Global.getInt(mContext.getContentResolver(),
13089                android.provider.Settings.Global.DEFAULT_INSTALL_LOCATION,
13090                PackageHelper.APP_INSTALL_AUTO);
13091    }
13092
13093    /** Called by UserManagerService */
13094    void cleanUpUserLILPw(UserManagerService userManager, int userHandle) {
13095        mDirtyUsers.remove(userHandle);
13096        mSettings.removeUserLPw(userHandle);
13097        mPendingBroadcasts.remove(userHandle);
13098        if (mInstaller != null) {
13099            // Technically, we shouldn't be doing this with the package lock
13100            // held.  However, this is very rare, and there is already so much
13101            // other disk I/O going on, that we'll let it slide for now.
13102            mInstaller.removeUserDataDirs(userHandle);
13103        }
13104        mUserNeedsBadging.delete(userHandle);
13105        removeUnusedPackagesLILPw(userManager, userHandle);
13106    }
13107
13108    /**
13109     * We're removing userHandle and would like to remove any downloaded packages
13110     * that are no longer in use by any other user.
13111     * @param userHandle the user being removed
13112     */
13113    private void removeUnusedPackagesLILPw(UserManagerService userManager, final int userHandle) {
13114        final boolean DEBUG_CLEAN_APKS = false;
13115        int [] users = userManager.getUserIdsLPr();
13116        Iterator<PackageSetting> psit = mSettings.mPackages.values().iterator();
13117        while (psit.hasNext()) {
13118            PackageSetting ps = psit.next();
13119            if (ps.pkg == null) {
13120                continue;
13121            }
13122            final String packageName = ps.pkg.packageName;
13123            // Skip over if system app
13124            if ((ps.pkgFlags & ApplicationInfo.FLAG_SYSTEM) != 0) {
13125                continue;
13126            }
13127            if (DEBUG_CLEAN_APKS) {
13128                Slog.i(TAG, "Checking package " + packageName);
13129            }
13130            boolean keep = false;
13131            for (int i = 0; i < users.length; i++) {
13132                if (users[i] != userHandle && ps.getInstalled(users[i])) {
13133                    keep = true;
13134                    if (DEBUG_CLEAN_APKS) {
13135                        Slog.i(TAG, "  Keeping package " + packageName + " for user "
13136                                + users[i]);
13137                    }
13138                    break;
13139                }
13140            }
13141            if (!keep) {
13142                if (DEBUG_CLEAN_APKS) {
13143                    Slog.i(TAG, "  Removing package " + packageName);
13144                }
13145                mHandler.post(new Runnable() {
13146                    public void run() {
13147                        deletePackageX(packageName, userHandle, 0);
13148                    } //end run
13149                });
13150            }
13151        }
13152    }
13153
13154    /** Called by UserManagerService */
13155    void createNewUserLILPw(int userHandle, File path) {
13156        if (mInstaller != null) {
13157            mInstaller.createUserConfig(userHandle);
13158            mSettings.createNewUserLILPw(this, mInstaller, userHandle, path);
13159        }
13160    }
13161
13162    @Override
13163    public VerifierDeviceIdentity getVerifierDeviceIdentity() throws RemoteException {
13164        mContext.enforceCallingOrSelfPermission(
13165                android.Manifest.permission.PACKAGE_VERIFICATION_AGENT,
13166                "Only package verification agents can read the verifier device identity");
13167
13168        synchronized (mPackages) {
13169            return mSettings.getVerifierDeviceIdentityLPw();
13170        }
13171    }
13172
13173    @Override
13174    public void setPermissionEnforced(String permission, boolean enforced) {
13175        mContext.enforceCallingOrSelfPermission(GRANT_REVOKE_PERMISSIONS, null);
13176        if (READ_EXTERNAL_STORAGE.equals(permission)) {
13177            synchronized (mPackages) {
13178                if (mSettings.mReadExternalStorageEnforced == null
13179                        || mSettings.mReadExternalStorageEnforced != enforced) {
13180                    mSettings.mReadExternalStorageEnforced = enforced;
13181                    mSettings.writeLPr();
13182                }
13183            }
13184            // kill any non-foreground processes so we restart them and
13185            // grant/revoke the GID.
13186            final IActivityManager am = ActivityManagerNative.getDefault();
13187            if (am != null) {
13188                final long token = Binder.clearCallingIdentity();
13189                try {
13190                    am.killProcessesBelowForeground("setPermissionEnforcement");
13191                } catch (RemoteException e) {
13192                } finally {
13193                    Binder.restoreCallingIdentity(token);
13194                }
13195            }
13196        } else {
13197            throw new IllegalArgumentException("No selective enforcement for " + permission);
13198        }
13199    }
13200
13201    @Override
13202    @Deprecated
13203    public boolean isPermissionEnforced(String permission) {
13204        return true;
13205    }
13206
13207    @Override
13208    public boolean isStorageLow() {
13209        final long token = Binder.clearCallingIdentity();
13210        try {
13211            final DeviceStorageMonitorInternal
13212                    dsm = LocalServices.getService(DeviceStorageMonitorInternal.class);
13213            if (dsm != null) {
13214                return dsm.isMemoryLow();
13215            } else {
13216                return false;
13217            }
13218        } finally {
13219            Binder.restoreCallingIdentity(token);
13220        }
13221    }
13222
13223    @Override
13224    public IPackageInstaller getPackageInstaller() {
13225        return mInstallerService;
13226    }
13227
13228    private boolean userNeedsBadging(int userId) {
13229        int index = mUserNeedsBadging.indexOfKey(userId);
13230        if (index < 0) {
13231            final UserInfo userInfo;
13232            final long token = Binder.clearCallingIdentity();
13233            try {
13234                userInfo = sUserManager.getUserInfo(userId);
13235            } finally {
13236                Binder.restoreCallingIdentity(token);
13237            }
13238            final boolean b;
13239            if (userInfo != null && userInfo.isManagedProfile()) {
13240                b = true;
13241            } else {
13242                b = false;
13243            }
13244            mUserNeedsBadging.put(userId, b);
13245            return b;
13246        }
13247        return mUserNeedsBadging.valueAt(index);
13248    }
13249
13250    @Override
13251    public KeySet getKeySetByAlias(String packageName, String alias) {
13252        if (packageName == null || alias == null) {
13253            return null;
13254        }
13255        synchronized(mPackages) {
13256            final PackageParser.Package pkg = mPackages.get(packageName);
13257            if (pkg == null) {
13258                Slog.w(TAG, "KeySet requested for unknown package:" + packageName);
13259                throw new IllegalArgumentException("Unknown package: " + packageName);
13260            }
13261            KeySetManagerService ksms = mSettings.mKeySetManagerService;
13262            return new KeySet(ksms.getKeySetByAliasAndPackageNameLPr(packageName, alias));
13263        }
13264    }
13265
13266    @Override
13267    public KeySet getSigningKeySet(String packageName) {
13268        if (packageName == null) {
13269            return null;
13270        }
13271        synchronized(mPackages) {
13272            final PackageParser.Package pkg = mPackages.get(packageName);
13273            if (pkg == null) {
13274                Slog.w(TAG, "KeySet requested for unknown package:" + packageName);
13275                throw new IllegalArgumentException("Unknown package: " + packageName);
13276            }
13277            if (pkg.applicationInfo.uid != Binder.getCallingUid()
13278                    && Process.SYSTEM_UID != Binder.getCallingUid()) {
13279                throw new SecurityException("May not access signing KeySet of other apps.");
13280            }
13281            KeySetManagerService ksms = mSettings.mKeySetManagerService;
13282            return new KeySet(ksms.getSigningKeySetByPackageNameLPr(packageName));
13283        }
13284    }
13285
13286    @Override
13287    public boolean isPackageSignedByKeySet(String packageName, KeySet ks) {
13288        if (packageName == null || ks == null) {
13289            return false;
13290        }
13291        synchronized(mPackages) {
13292            final PackageParser.Package pkg = mPackages.get(packageName);
13293            if (pkg == null) {
13294                Slog.w(TAG, "KeySet requested for unknown package:" + packageName);
13295                throw new IllegalArgumentException("Unknown package: " + packageName);
13296            }
13297            IBinder ksh = ks.getToken();
13298            if (ksh instanceof KeySetHandle) {
13299                KeySetManagerService ksms = mSettings.mKeySetManagerService;
13300                return ksms.packageIsSignedByLPr(packageName, (KeySetHandle) ksh);
13301            }
13302            return false;
13303        }
13304    }
13305
13306    @Override
13307    public boolean isPackageSignedByKeySetExactly(String packageName, KeySet ks) {
13308        if (packageName == null || ks == null) {
13309            return false;
13310        }
13311        synchronized(mPackages) {
13312            final PackageParser.Package pkg = mPackages.get(packageName);
13313            if (pkg == null) {
13314                Slog.w(TAG, "KeySet requested for unknown package:" + packageName);
13315                throw new IllegalArgumentException("Unknown package: " + packageName);
13316            }
13317            IBinder ksh = ks.getToken();
13318            if (ksh instanceof KeySetHandle) {
13319                KeySetManagerService ksms = mSettings.mKeySetManagerService;
13320                return ksms.packageIsSignedByExactlyLPr(packageName, (KeySetHandle) ksh);
13321            }
13322            return false;
13323        }
13324    }
13325
13326    public void getUsageStatsIfNoPackageUsageInfo() {
13327        if (!mPackageUsage.isHistoricalPackageUsageAvailable()) {
13328            UsageStatsManager usm = (UsageStatsManager) mContext.getSystemService(Context.USAGE_STATS_SERVICE);
13329            if (usm == null) {
13330                throw new IllegalStateException("UsageStatsManager must be initialized");
13331            }
13332            long now = System.currentTimeMillis();
13333            Map<String, UsageStats> stats = usm.queryAndAggregateUsageStats(now - mDexOptLRUThresholdInMills, now);
13334            for (Map.Entry<String, UsageStats> entry : stats.entrySet()) {
13335                String packageName = entry.getKey();
13336                PackageParser.Package pkg = mPackages.get(packageName);
13337                if (pkg == null) {
13338                    continue;
13339                }
13340                UsageStats usage = entry.getValue();
13341                pkg.mLastPackageUsageTimeInMills = usage.getLastTimeUsed();
13342                mPackageUsage.mIsHistoricalPackageUsageAvailable = true;
13343            }
13344        }
13345    }
13346
13347    /**
13348     * Check and throw if the given before/after packages would be considered a
13349     * downgrade.
13350     */
13351    private static void checkDowngrade(PackageParser.Package before, PackageInfoLite after)
13352            throws PackageManagerException {
13353        if (after.versionCode < before.mVersionCode) {
13354            throw new PackageManagerException(INSTALL_FAILED_VERSION_DOWNGRADE,
13355                    "Update version code " + after.versionCode + " is older than current "
13356                    + before.mVersionCode);
13357        } else if (after.versionCode == before.mVersionCode) {
13358            if (after.baseRevisionCode < before.baseRevisionCode) {
13359                throw new PackageManagerException(INSTALL_FAILED_VERSION_DOWNGRADE,
13360                        "Update base revision code " + after.baseRevisionCode
13361                        + " is older than current " + before.baseRevisionCode);
13362            }
13363
13364            if (!ArrayUtils.isEmpty(after.splitNames)) {
13365                for (int i = 0; i < after.splitNames.length; i++) {
13366                    final String splitName = after.splitNames[i];
13367                    final int j = ArrayUtils.indexOf(before.splitNames, splitName);
13368                    if (j != -1) {
13369                        if (after.splitRevisionCodes[i] < before.splitRevisionCodes[j]) {
13370                            throw new PackageManagerException(INSTALL_FAILED_VERSION_DOWNGRADE,
13371                                    "Update split " + splitName + " revision code "
13372                                    + after.splitRevisionCodes[i] + " is older than current "
13373                                    + before.splitRevisionCodes[j]);
13374                        }
13375                    }
13376                }
13377            }
13378        }
13379    }
13380}
13381