PackageManagerService.java revision 55fe944f987bcbdea8bbec7ea411684f69623da4 
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                            int dexoptNeeded = DexFile.getDexOptNeeded(lib, null, dexCodeInstructionSet, false);
1461                            if (dexoptNeeded != DexFile.NO_DEXOPT_NEEDED) {
1462                                alreadyDexOpted.add(lib);
1463                                mInstaller.dexopt(lib, Process.SYSTEM_UID, true, dexCodeInstructionSet, dexoptNeeded, false);
1464                            }
1465                        } catch (FileNotFoundException e) {
1466                            Slog.w(TAG, "Library not found: " + lib);
1467                        } catch (IOException e) {
1468                            Slog.w(TAG, "Cannot dexopt " + lib + "; is it an APK or JAR? "
1469                                    + e.getMessage());
1470                        }
1471                    }
1472                }
1473            }
1474
1475            File frameworkDir = new File(Environment.getRootDirectory(), "framework");
1476
1477            // Gross hack for now: we know this file doesn't contain any
1478            // code, so don't dexopt it to avoid the resulting log spew.
1479            alreadyDexOpted.add(frameworkDir.getPath() + "/framework-res.apk");
1480
1481            // Gross hack for now: we know this file is only part of
1482            // the boot class path for art, so don't dexopt it to
1483            // avoid the resulting log spew.
1484            alreadyDexOpted.add(frameworkDir.getPath() + "/core-libart.jar");
1485
1486            /**
1487             * And there are a number of commands implemented in Java, which
1488             * we currently need to do the dexopt on so that they can be
1489             * run from a non-root shell.
1490             */
1491            String[] frameworkFiles = frameworkDir.list();
1492            if (frameworkFiles != null) {
1493                // TODO: We could compile these only for the most preferred ABI. We should
1494                // first double check that the dex files for these commands are not referenced
1495                // by other system apps.
1496                for (String dexCodeInstructionSet : dexCodeInstructionSets) {
1497                    for (int i=0; i<frameworkFiles.length; i++) {
1498                        File libPath = new File(frameworkDir, frameworkFiles[i]);
1499                        String path = libPath.getPath();
1500                        // Skip the file if we already did it.
1501                        if (alreadyDexOpted.contains(path)) {
1502                            continue;
1503                        }
1504                        // Skip the file if it is not a type we want to dexopt.
1505                        if (!path.endsWith(".apk") && !path.endsWith(".jar")) {
1506                            continue;
1507                        }
1508                        try {
1509                            int dexoptNeeded = DexFile.getDexOptNeeded(path, null, dexCodeInstructionSet, false);
1510                            if (dexoptNeeded != DexFile.NO_DEXOPT_NEEDED) {
1511                                mInstaller.dexopt(path, Process.SYSTEM_UID, true, dexCodeInstructionSet, dexoptNeeded, false);
1512                            }
1513                        } catch (FileNotFoundException e) {
1514                            Slog.w(TAG, "Jar not found: " + path);
1515                        } catch (IOException e) {
1516                            Slog.w(TAG, "Exception reading jar: " + path, e);
1517                        }
1518                    }
1519                }
1520            }
1521
1522            // Collect vendor overlay packages.
1523            // (Do this before scanning any apps.)
1524            // For security and version matching reason, only consider
1525            // overlay packages if they reside in VENDOR_OVERLAY_DIR.
1526            File vendorOverlayDir = new File(VENDOR_OVERLAY_DIR);
1527            scanDirLI(vendorOverlayDir, PackageParser.PARSE_IS_SYSTEM
1528                    | PackageParser.PARSE_IS_SYSTEM_DIR, scanFlags | SCAN_TRUSTED_OVERLAY, 0);
1529
1530            // Find base frameworks (resource packages without code).
1531            scanDirLI(frameworkDir, PackageParser.PARSE_IS_SYSTEM
1532                    | PackageParser.PARSE_IS_SYSTEM_DIR
1533                    | PackageParser.PARSE_IS_PRIVILEGED,
1534                    scanFlags | SCAN_NO_DEX, 0);
1535
1536            // Collected privileged system packages.
1537            final File privilegedAppDir = new File(Environment.getRootDirectory(), "priv-app");
1538            scanDirLI(privilegedAppDir, PackageParser.PARSE_IS_SYSTEM
1539                    | PackageParser.PARSE_IS_SYSTEM_DIR
1540                    | PackageParser.PARSE_IS_PRIVILEGED, scanFlags, 0);
1541
1542            // Collect ordinary system packages.
1543            final File systemAppDir = new File(Environment.getRootDirectory(), "app");
1544            scanDirLI(systemAppDir, PackageParser.PARSE_IS_SYSTEM
1545                    | PackageParser.PARSE_IS_SYSTEM_DIR, scanFlags, 0);
1546
1547            // Collect all vendor packages.
1548            File vendorAppDir = new File("/vendor/app");
1549            try {
1550                vendorAppDir = vendorAppDir.getCanonicalFile();
1551            } catch (IOException e) {
1552                // failed to look up canonical path, continue with original one
1553            }
1554            scanDirLI(vendorAppDir, PackageParser.PARSE_IS_SYSTEM
1555                    | PackageParser.PARSE_IS_SYSTEM_DIR, scanFlags, 0);
1556
1557            // Collect all OEM packages.
1558            final File oemAppDir = new File(Environment.getOemDirectory(), "app");
1559            scanDirLI(oemAppDir, PackageParser.PARSE_IS_SYSTEM
1560                    | PackageParser.PARSE_IS_SYSTEM_DIR, scanFlags, 0);
1561
1562            if (DEBUG_UPGRADE) Log.v(TAG, "Running installd update commands");
1563            mInstaller.moveFiles();
1564
1565            // Prune any system packages that no longer exist.
1566            final List<String> possiblyDeletedUpdatedSystemApps = new ArrayList<String>();
1567            final ArrayMap<String, File> expectingBetter = new ArrayMap<>();
1568            if (!mOnlyCore) {
1569                Iterator<PackageSetting> psit = mSettings.mPackages.values().iterator();
1570                while (psit.hasNext()) {
1571                    PackageSetting ps = psit.next();
1572
1573                    /*
1574                     * If this is not a system app, it can't be a
1575                     * disable system app.
1576                     */
1577                    if ((ps.pkgFlags & ApplicationInfo.FLAG_SYSTEM) == 0) {
1578                        continue;
1579                    }
1580
1581                    /*
1582                     * If the package is scanned, it's not erased.
1583                     */
1584                    final PackageParser.Package scannedPkg = mPackages.get(ps.name);
1585                    if (scannedPkg != null) {
1586                        /*
1587                         * If the system app is both scanned and in the
1588                         * disabled packages list, then it must have been
1589                         * added via OTA. Remove it from the currently
1590                         * scanned package so the previously user-installed
1591                         * application can be scanned.
1592                         */
1593                        if (mSettings.isDisabledSystemPackageLPr(ps.name)) {
1594                            logCriticalInfo(Log.WARN, "Expecting better updated system app for "
1595                                    + ps.name + "; removing system app.  Last known codePath="
1596                                    + ps.codePathString + ", installStatus=" + ps.installStatus
1597                                    + ", versionCode=" + ps.versionCode + "; scanned versionCode="
1598                                    + scannedPkg.mVersionCode);
1599                            removePackageLI(ps, true);
1600                            expectingBetter.put(ps.name, ps.codePath);
1601                        }
1602
1603                        continue;
1604                    }
1605
1606                    if (!mSettings.isDisabledSystemPackageLPr(ps.name)) {
1607                        psit.remove();
1608                        logCriticalInfo(Log.WARN, "System package " + ps.name
1609                                + " no longer exists; wiping its data");
1610                        removeDataDirsLI(ps.name);
1611                    } else {
1612                        final PackageSetting disabledPs = mSettings.getDisabledSystemPkgLPr(ps.name);
1613                        if (disabledPs.codePath == null || !disabledPs.codePath.exists()) {
1614                            possiblyDeletedUpdatedSystemApps.add(ps.name);
1615                        }
1616                    }
1617                }
1618            }
1619
1620            //look for any incomplete package installations
1621            ArrayList<PackageSetting> deletePkgsList = mSettings.getListOfIncompleteInstallPackagesLPr();
1622            //clean up list
1623            for(int i = 0; i < deletePkgsList.size(); i++) {
1624                //clean up here
1625                cleanupInstallFailedPackage(deletePkgsList.get(i));
1626            }
1627            //delete tmp files
1628            deleteTempPackageFiles();
1629
1630            // Remove any shared userIDs that have no associated packages
1631            mSettings.pruneSharedUsersLPw();
1632
1633            if (!mOnlyCore) {
1634                EventLog.writeEvent(EventLogTags.BOOT_PROGRESS_PMS_DATA_SCAN_START,
1635                        SystemClock.uptimeMillis());
1636                scanDirLI(mAppInstallDir, 0, scanFlags, 0);
1637
1638                scanDirLI(mDrmAppPrivateInstallDir, PackageParser.PARSE_FORWARD_LOCK,
1639                        scanFlags, 0);
1640
1641                /**
1642                 * Remove disable package settings for any updated system
1643                 * apps that were removed via an OTA. If they're not a
1644                 * previously-updated app, remove them completely.
1645                 * Otherwise, just revoke their system-level permissions.
1646                 */
1647                for (String deletedAppName : possiblyDeletedUpdatedSystemApps) {
1648                    PackageParser.Package deletedPkg = mPackages.get(deletedAppName);
1649                    mSettings.removeDisabledSystemPackageLPw(deletedAppName);
1650
1651                    String msg;
1652                    if (deletedPkg == null) {
1653                        msg = "Updated system package " + deletedAppName
1654                                + " no longer exists; wiping its data";
1655                        removeDataDirsLI(deletedAppName);
1656                    } else {
1657                        msg = "Updated system app + " + deletedAppName
1658                                + " no longer present; removing system privileges for "
1659                                + deletedAppName;
1660
1661                        deletedPkg.applicationInfo.flags &= ~ApplicationInfo.FLAG_SYSTEM;
1662
1663                        PackageSetting deletedPs = mSettings.mPackages.get(deletedAppName);
1664                        deletedPs.pkgFlags &= ~ApplicationInfo.FLAG_SYSTEM;
1665                    }
1666                    logCriticalInfo(Log.WARN, msg);
1667                }
1668
1669                /**
1670                 * Make sure all system apps that we expected to appear on
1671                 * the userdata partition actually showed up. If they never
1672                 * appeared, crawl back and revive the system version.
1673                 */
1674                for (int i = 0; i < expectingBetter.size(); i++) {
1675                    final String packageName = expectingBetter.keyAt(i);
1676                    if (!mPackages.containsKey(packageName)) {
1677                        final File scanFile = expectingBetter.valueAt(i);
1678
1679                        logCriticalInfo(Log.WARN, "Expected better " + packageName
1680                                + " but never showed up; reverting to system");
1681
1682                        final int reparseFlags;
1683                        if (FileUtils.contains(privilegedAppDir, scanFile)) {
1684                            reparseFlags = PackageParser.PARSE_IS_SYSTEM
1685                                    | PackageParser.PARSE_IS_SYSTEM_DIR
1686                                    | PackageParser.PARSE_IS_PRIVILEGED;
1687                        } else if (FileUtils.contains(systemAppDir, scanFile)) {
1688                            reparseFlags = PackageParser.PARSE_IS_SYSTEM
1689                                    | PackageParser.PARSE_IS_SYSTEM_DIR;
1690                        } else if (FileUtils.contains(vendorAppDir, scanFile)) {
1691                            reparseFlags = PackageParser.PARSE_IS_SYSTEM
1692                                    | PackageParser.PARSE_IS_SYSTEM_DIR;
1693                        } else if (FileUtils.contains(oemAppDir, scanFile)) {
1694                            reparseFlags = PackageParser.PARSE_IS_SYSTEM
1695                                    | PackageParser.PARSE_IS_SYSTEM_DIR;
1696                        } else {
1697                            Slog.e(TAG, "Ignoring unexpected fallback path " + scanFile);
1698                            continue;
1699                        }
1700
1701                        mSettings.enableSystemPackageLPw(packageName);
1702
1703                        try {
1704                            scanPackageLI(scanFile, reparseFlags, scanFlags, 0, null);
1705                        } catch (PackageManagerException e) {
1706                            Slog.e(TAG, "Failed to parse original system package: "
1707                                    + e.getMessage());
1708                        }
1709                    }
1710                }
1711            }
1712
1713            // Now that we know all of the shared libraries, update all clients to have
1714            // the correct library paths.
1715            updateAllSharedLibrariesLPw();
1716
1717            for (SharedUserSetting setting : mSettings.getAllSharedUsersLPw()) {
1718                // NOTE: We ignore potential failures here during a system scan (like
1719                // the rest of the commands above) because there's precious little we
1720                // can do about it. A settings error is reported, though.
1721                adjustCpuAbisForSharedUserLPw(setting.packages, null /* scanned package */,
1722                        false /* force dexopt */, false /* defer dexopt */,
1723                        false /* boot complete */);
1724            }
1725
1726            // Now that we know all the packages we are keeping,
1727            // read and update their last usage times.
1728            mPackageUsage.readLP();
1729
1730            EventLog.writeEvent(EventLogTags.BOOT_PROGRESS_PMS_SCAN_END,
1731                    SystemClock.uptimeMillis());
1732            Slog.i(TAG, "Time to scan packages: "
1733                    + ((SystemClock.uptimeMillis()-startTime)/1000f)
1734                    + " seconds");
1735
1736            // If the platform SDK has changed since the last time we booted,
1737            // we need to re-grant app permission to catch any new ones that
1738            // appear.  This is really a hack, and means that apps can in some
1739            // cases get permissions that the user didn't initially explicitly
1740            // allow...  it would be nice to have some better way to handle
1741            // this situation.
1742            final boolean regrantPermissions = mSettings.mInternalSdkPlatform
1743                    != mSdkVersion;
1744            if (regrantPermissions) Slog.i(TAG, "Platform changed from "
1745                    + mSettings.mInternalSdkPlatform + " to " + mSdkVersion
1746                    + "; regranting permissions for internal storage");
1747            mSettings.mInternalSdkPlatform = mSdkVersion;
1748
1749            updatePermissionsLPw(null, null, UPDATE_PERMISSIONS_ALL
1750                    | (regrantPermissions
1751                            ? (UPDATE_PERMISSIONS_REPLACE_PKG|UPDATE_PERMISSIONS_REPLACE_ALL)
1752                            : 0));
1753
1754            // If this is the first boot, and it is a normal boot, then
1755            // we need to initialize the default preferred apps.
1756            if (!mRestoredSettings && !onlyCore) {
1757                mSettings.readDefaultPreferredAppsLPw(this, 0);
1758            }
1759
1760            // If this is first boot after an OTA, and a normal boot, then
1761            // we need to clear code cache directories.
1762            mIsUpgrade = !Build.FINGERPRINT.equals(mSettings.mFingerprint);
1763            if (mIsUpgrade && !onlyCore) {
1764                Slog.i(TAG, "Build fingerprint changed; clearing code caches");
1765                for (String pkgName : mSettings.mPackages.keySet()) {
1766                    deleteCodeCacheDirsLI(pkgName);
1767                }
1768                mSettings.mFingerprint = Build.FINGERPRINT;
1769            }
1770
1771            // All the changes are done during package scanning.
1772            mSettings.updateInternalDatabaseVersion();
1773
1774            // can downgrade to reader
1775            mSettings.writeLPr();
1776
1777            EventLog.writeEvent(EventLogTags.BOOT_PROGRESS_PMS_READY,
1778                    SystemClock.uptimeMillis());
1779
1780
1781            mRequiredVerifierPackage = getRequiredVerifierLPr();
1782        } // synchronized (mPackages)
1783        } // synchronized (mInstallLock)
1784
1785        mInstallerService = new PackageInstallerService(context, this, mAppInstallDir);
1786
1787        // Now after opening every single application zip, make sure they
1788        // are all flushed.  Not really needed, but keeps things nice and
1789        // tidy.
1790        Runtime.getRuntime().gc();
1791    }
1792
1793    @Override
1794    public boolean isFirstBoot() {
1795        return !mRestoredSettings;
1796    }
1797
1798    @Override
1799    public boolean isOnlyCoreApps() {
1800        return mOnlyCore;
1801    }
1802
1803    @Override
1804    public boolean isUpgrade() {
1805        return mIsUpgrade;
1806    }
1807
1808    private String getRequiredVerifierLPr() {
1809        final Intent verification = new Intent(Intent.ACTION_PACKAGE_NEEDS_VERIFICATION);
1810        final List<ResolveInfo> receivers = queryIntentReceivers(verification, PACKAGE_MIME_TYPE,
1811                PackageManager.GET_DISABLED_COMPONENTS, 0 /* TODO: Which userId? */);
1812
1813        String requiredVerifier = null;
1814
1815        final int N = receivers.size();
1816        for (int i = 0; i < N; i++) {
1817            final ResolveInfo info = receivers.get(i);
1818
1819            if (info.activityInfo == null) {
1820                continue;
1821            }
1822
1823            final String packageName = info.activityInfo.packageName;
1824
1825            final PackageSetting ps = mSettings.mPackages.get(packageName);
1826            if (ps == null) {
1827                continue;
1828            }
1829
1830            final GrantedPermissions gp = ps.sharedUser != null ? ps.sharedUser : ps;
1831            if (!gp.grantedPermissions
1832                    .contains(android.Manifest.permission.PACKAGE_VERIFICATION_AGENT)) {
1833                continue;
1834            }
1835
1836            if (requiredVerifier != null) {
1837                throw new RuntimeException("There can be only one required verifier");
1838            }
1839
1840            requiredVerifier = packageName;
1841        }
1842
1843        return requiredVerifier;
1844    }
1845
1846    @Override
1847    public boolean onTransact(int code, Parcel data, Parcel reply, int flags)
1848            throws RemoteException {
1849        try {
1850            return super.onTransact(code, data, reply, flags);
1851        } catch (RuntimeException e) {
1852            if (!(e instanceof SecurityException) && !(e instanceof IllegalArgumentException)) {
1853                Slog.wtf(TAG, "Package Manager Crash", e);
1854            }
1855            throw e;
1856        }
1857    }
1858
1859    void cleanupInstallFailedPackage(PackageSetting ps) {
1860        logCriticalInfo(Log.WARN, "Cleaning up incompletely installed app: " + ps.name);
1861
1862        removeDataDirsLI(ps.name);
1863        if (ps.codePath != null) {
1864            if (ps.codePath.isDirectory()) {
1865                mInstaller.rmPackageDir(ps.codePath.getAbsolutePath());
1866            } else {
1867                ps.codePath.delete();
1868            }
1869        }
1870        if (ps.resourcePath != null && !ps.resourcePath.equals(ps.codePath)) {
1871            if (ps.resourcePath.isDirectory()) {
1872                FileUtils.deleteContents(ps.resourcePath);
1873            }
1874            ps.resourcePath.delete();
1875        }
1876        mSettings.removePackageLPw(ps.name);
1877    }
1878
1879    static int[] appendInts(int[] cur, int[] add) {
1880        if (add == null) return cur;
1881        if (cur == null) return add;
1882        final int N = add.length;
1883        for (int i=0; i<N; i++) {
1884            cur = appendInt(cur, add[i]);
1885        }
1886        return cur;
1887    }
1888
1889    static int[] removeInts(int[] cur, int[] rem) {
1890        if (rem == null) return cur;
1891        if (cur == null) return cur;
1892        final int N = rem.length;
1893        for (int i=0; i<N; i++) {
1894            cur = removeInt(cur, rem[i]);
1895        }
1896        return cur;
1897    }
1898
1899    PackageInfo generatePackageInfo(PackageParser.Package p, int flags, int userId) {
1900        if (!sUserManager.exists(userId)) return null;
1901        final PackageSetting ps = (PackageSetting) p.mExtras;
1902        if (ps == null) {
1903            return null;
1904        }
1905        final GrantedPermissions gp = ps.sharedUser != null ? ps.sharedUser : ps;
1906        final PackageUserState state = ps.readUserState(userId);
1907        return PackageParser.generatePackageInfo(p, gp.gids, flags,
1908                ps.firstInstallTime, ps.lastUpdateTime, gp.grantedPermissions,
1909                state, userId);
1910    }
1911
1912    @Override
1913    public boolean isPackageAvailable(String packageName, int userId) {
1914        if (!sUserManager.exists(userId)) return false;
1915        enforceCrossUserPermission(Binder.getCallingUid(), userId, false, false, "is package available");
1916        synchronized (mPackages) {
1917            PackageParser.Package p = mPackages.get(packageName);
1918            if (p != null) {
1919                final PackageSetting ps = (PackageSetting) p.mExtras;
1920                if (ps != null) {
1921                    final PackageUserState state = ps.readUserState(userId);
1922                    if (state != null) {
1923                        return PackageParser.isAvailable(state);
1924                    }
1925                }
1926            }
1927        }
1928        return false;
1929    }
1930
1931    @Override
1932    public PackageInfo getPackageInfo(String packageName, int flags, int userId) {
1933        if (!sUserManager.exists(userId)) return null;
1934        enforceCrossUserPermission(Binder.getCallingUid(), userId, false, false, "get package info");
1935        // reader
1936        synchronized (mPackages) {
1937            PackageParser.Package p = mPackages.get(packageName);
1938            if (DEBUG_PACKAGE_INFO)
1939                Log.v(TAG, "getPackageInfo " + packageName + ": " + p);
1940            if (p != null) {
1941                return generatePackageInfo(p, flags, userId);
1942            }
1943            if((flags & PackageManager.GET_UNINSTALLED_PACKAGES) != 0) {
1944                return generatePackageInfoFromSettingsLPw(packageName, flags, userId);
1945            }
1946        }
1947        return null;
1948    }
1949
1950    @Override
1951    public String[] currentToCanonicalPackageNames(String[] names) {
1952        String[] out = new String[names.length];
1953        // reader
1954        synchronized (mPackages) {
1955            for (int i=names.length-1; i>=0; i--) {
1956                PackageSetting ps = mSettings.mPackages.get(names[i]);
1957                out[i] = ps != null && ps.realName != null ? ps.realName : names[i];
1958            }
1959        }
1960        return out;
1961    }
1962
1963    @Override
1964    public String[] canonicalToCurrentPackageNames(String[] names) {
1965        String[] out = new String[names.length];
1966        // reader
1967        synchronized (mPackages) {
1968            for (int i=names.length-1; i>=0; i--) {
1969                String cur = mSettings.mRenamedPackages.get(names[i]);
1970                out[i] = cur != null ? cur : names[i];
1971            }
1972        }
1973        return out;
1974    }
1975
1976    @Override
1977    public int getPackageUid(String packageName, int userId) {
1978        if (!sUserManager.exists(userId)) return -1;
1979        enforceCrossUserPermission(Binder.getCallingUid(), userId, false, false, "get package uid");
1980        // reader
1981        synchronized (mPackages) {
1982            PackageParser.Package p = mPackages.get(packageName);
1983            if(p != null) {
1984                return UserHandle.getUid(userId, p.applicationInfo.uid);
1985            }
1986            PackageSetting ps = mSettings.mPackages.get(packageName);
1987            if((ps == null) || (ps.pkg == null) || (ps.pkg.applicationInfo == null)) {
1988                return -1;
1989            }
1990            p = ps.pkg;
1991            return p != null ? UserHandle.getUid(userId, p.applicationInfo.uid) : -1;
1992        }
1993    }
1994
1995    @Override
1996    public int[] getPackageGids(String packageName) {
1997        // reader
1998        synchronized (mPackages) {
1999            PackageParser.Package p = mPackages.get(packageName);
2000            if (DEBUG_PACKAGE_INFO)
2001                Log.v(TAG, "getPackageGids" + packageName + ": " + p);
2002            if (p != null) {
2003                final PackageSetting ps = (PackageSetting)p.mExtras;
2004                return ps.getGids();
2005            }
2006        }
2007        // stupid thing to indicate an error.
2008        return new int[0];
2009    }
2010
2011    static final PermissionInfo generatePermissionInfo(
2012            BasePermission bp, int flags) {
2013        if (bp.perm != null) {
2014            return PackageParser.generatePermissionInfo(bp.perm, flags);
2015        }
2016        PermissionInfo pi = new PermissionInfo();
2017        pi.name = bp.name;
2018        pi.packageName = bp.sourcePackage;
2019        pi.nonLocalizedLabel = bp.name;
2020        pi.protectionLevel = bp.protectionLevel;
2021        return pi;
2022    }
2023
2024    @Override
2025    public PermissionInfo getPermissionInfo(String name, int flags) {
2026        // reader
2027        synchronized (mPackages) {
2028            final BasePermission p = mSettings.mPermissions.get(name);
2029            if (p != null) {
2030                return generatePermissionInfo(p, flags);
2031            }
2032            return null;
2033        }
2034    }
2035
2036    @Override
2037    public List<PermissionInfo> queryPermissionsByGroup(String group, int flags) {
2038        // reader
2039        synchronized (mPackages) {
2040            ArrayList<PermissionInfo> out = new ArrayList<PermissionInfo>(10);
2041            for (BasePermission p : mSettings.mPermissions.values()) {
2042                if (group == null) {
2043                    if (p.perm == null || p.perm.info.group == null) {
2044                        out.add(generatePermissionInfo(p, flags));
2045                    }
2046                } else {
2047                    if (p.perm != null && group.equals(p.perm.info.group)) {
2048                        out.add(PackageParser.generatePermissionInfo(p.perm, flags));
2049                    }
2050                }
2051            }
2052
2053            if (out.size() > 0) {
2054                return out;
2055            }
2056            return mPermissionGroups.containsKey(group) ? out : null;
2057        }
2058    }
2059
2060    @Override
2061    public PermissionGroupInfo getPermissionGroupInfo(String name, int flags) {
2062        // reader
2063        synchronized (mPackages) {
2064            return PackageParser.generatePermissionGroupInfo(
2065                    mPermissionGroups.get(name), flags);
2066        }
2067    }
2068
2069    @Override
2070    public List<PermissionGroupInfo> getAllPermissionGroups(int flags) {
2071        // reader
2072        synchronized (mPackages) {
2073            final int N = mPermissionGroups.size();
2074            ArrayList<PermissionGroupInfo> out
2075                    = new ArrayList<PermissionGroupInfo>(N);
2076            for (PackageParser.PermissionGroup pg : mPermissionGroups.values()) {
2077                out.add(PackageParser.generatePermissionGroupInfo(pg, flags));
2078            }
2079            return out;
2080        }
2081    }
2082
2083    private ApplicationInfo generateApplicationInfoFromSettingsLPw(String packageName, int flags,
2084            int userId) {
2085        if (!sUserManager.exists(userId)) return null;
2086        PackageSetting ps = mSettings.mPackages.get(packageName);
2087        if (ps != null) {
2088            if (ps.pkg == null) {
2089                PackageInfo pInfo = generatePackageInfoFromSettingsLPw(packageName,
2090                        flags, userId);
2091                if (pInfo != null) {
2092                    return pInfo.applicationInfo;
2093                }
2094                return null;
2095            }
2096            return PackageParser.generateApplicationInfo(ps.pkg, flags,
2097                    ps.readUserState(userId), userId);
2098        }
2099        return null;
2100    }
2101
2102    private PackageInfo generatePackageInfoFromSettingsLPw(String packageName, int flags,
2103            int userId) {
2104        if (!sUserManager.exists(userId)) return null;
2105        PackageSetting ps = mSettings.mPackages.get(packageName);
2106        if (ps != null) {
2107            PackageParser.Package pkg = ps.pkg;
2108            if (pkg == null) {
2109                if ((flags & PackageManager.GET_UNINSTALLED_PACKAGES) == 0) {
2110                    return null;
2111                }
2112                // Only data remains, so we aren't worried about code paths
2113                pkg = new PackageParser.Package(packageName);
2114                pkg.applicationInfo.packageName = packageName;
2115                pkg.applicationInfo.flags = ps.pkgFlags | ApplicationInfo.FLAG_IS_DATA_ONLY;
2116                pkg.applicationInfo.privateFlags = ps.pkgPrivateFlags;
2117                pkg.applicationInfo.dataDir =
2118                        getDataPathForPackage(packageName, 0).getPath();
2119                pkg.applicationInfo.primaryCpuAbi = ps.primaryCpuAbiString;
2120                pkg.applicationInfo.secondaryCpuAbi = ps.secondaryCpuAbiString;
2121            }
2122            return generatePackageInfo(pkg, flags, userId);
2123        }
2124        return null;
2125    }
2126
2127    @Override
2128    public ApplicationInfo getApplicationInfo(String packageName, int flags, int userId) {
2129        if (!sUserManager.exists(userId)) return null;
2130        enforceCrossUserPermission(Binder.getCallingUid(), userId, false, false, "get application info");
2131        // writer
2132        synchronized (mPackages) {
2133            PackageParser.Package p = mPackages.get(packageName);
2134            if (DEBUG_PACKAGE_INFO) Log.v(
2135                    TAG, "getApplicationInfo " + packageName
2136                    + ": " + p);
2137            if (p != null) {
2138                PackageSetting ps = mSettings.mPackages.get(packageName);
2139                if (ps == null) return null;
2140                // Note: isEnabledLP() does not apply here - always return info
2141                return PackageParser.generateApplicationInfo(
2142                        p, flags, ps.readUserState(userId), userId);
2143            }
2144            if ("android".equals(packageName)||"system".equals(packageName)) {
2145                return mAndroidApplication;
2146            }
2147            if ((flags & PackageManager.GET_UNINSTALLED_PACKAGES) != 0) {
2148                return generateApplicationInfoFromSettingsLPw(packageName, flags, userId);
2149            }
2150        }
2151        return null;
2152    }
2153
2154
2155    @Override
2156    public void freeStorageAndNotify(final long freeStorageSize, final IPackageDataObserver observer) {
2157        mContext.enforceCallingOrSelfPermission(
2158                android.Manifest.permission.CLEAR_APP_CACHE, null);
2159        // Queue up an async operation since clearing cache may take a little while.
2160        mHandler.post(new Runnable() {
2161            public void run() {
2162                mHandler.removeCallbacks(this);
2163                int retCode = -1;
2164                synchronized (mInstallLock) {
2165                    retCode = mInstaller.freeCache(freeStorageSize);
2166                    if (retCode < 0) {
2167                        Slog.w(TAG, "Couldn't clear application caches");
2168                    }
2169                }
2170                if (observer != null) {
2171                    try {
2172                        observer.onRemoveCompleted(null, (retCode >= 0));
2173                    } catch (RemoteException e) {
2174                        Slog.w(TAG, "RemoveException when invoking call back");
2175                    }
2176                }
2177            }
2178        });
2179    }
2180
2181    @Override
2182    public void freeStorage(final long freeStorageSize, final IntentSender pi) {
2183        mContext.enforceCallingOrSelfPermission(
2184                android.Manifest.permission.CLEAR_APP_CACHE, null);
2185        // Queue up an async operation since clearing cache may take a little while.
2186        mHandler.post(new Runnable() {
2187            public void run() {
2188                mHandler.removeCallbacks(this);
2189                int retCode = -1;
2190                synchronized (mInstallLock) {
2191                    retCode = mInstaller.freeCache(freeStorageSize);
2192                    if (retCode < 0) {
2193                        Slog.w(TAG, "Couldn't clear application caches");
2194                    }
2195                }
2196                if(pi != null) {
2197                    try {
2198                        // Callback via pending intent
2199                        int code = (retCode >= 0) ? 1 : 0;
2200                        pi.sendIntent(null, code, null,
2201                                null, null);
2202                    } catch (SendIntentException e1) {
2203                        Slog.i(TAG, "Failed to send pending intent");
2204                    }
2205                }
2206            }
2207        });
2208    }
2209
2210    void freeStorage(long freeStorageSize) throws IOException {
2211        synchronized (mInstallLock) {
2212            if (mInstaller.freeCache(freeStorageSize) < 0) {
2213                throw new IOException("Failed to free enough space");
2214            }
2215        }
2216    }
2217
2218    @Override
2219    public ActivityInfo getActivityInfo(ComponentName component, int flags, int userId) {
2220        if (!sUserManager.exists(userId)) return null;
2221        enforceCrossUserPermission(Binder.getCallingUid(), userId, false, false, "get activity info");
2222        synchronized (mPackages) {
2223            PackageParser.Activity a = mActivities.mActivities.get(component);
2224
2225            if (DEBUG_PACKAGE_INFO) Log.v(TAG, "getActivityInfo " + component + ": " + a);
2226            if (a != null && mSettings.isEnabledLPr(a.info, flags, userId)) {
2227                PackageSetting ps = mSettings.mPackages.get(component.getPackageName());
2228                if (ps == null) return null;
2229                return PackageParser.generateActivityInfo(a, flags, ps.readUserState(userId),
2230                        userId);
2231            }
2232            if (mResolveComponentName.equals(component)) {
2233                return PackageParser.generateActivityInfo(mResolveActivity, flags,
2234                        new PackageUserState(), userId);
2235            }
2236        }
2237        return null;
2238    }
2239
2240    @Override
2241    public boolean activitySupportsIntent(ComponentName component, Intent intent,
2242            String resolvedType) {
2243        synchronized (mPackages) {
2244            PackageParser.Activity a = mActivities.mActivities.get(component);
2245            if (a == null) {
2246                return false;
2247            }
2248            for (int i=0; i<a.intents.size(); i++) {
2249                if (a.intents.get(i).match(intent.getAction(), resolvedType, intent.getScheme(),
2250                        intent.getData(), intent.getCategories(), TAG) >= 0) {
2251                    return true;
2252                }
2253            }
2254            return false;
2255        }
2256    }
2257
2258    @Override
2259    public ActivityInfo getReceiverInfo(ComponentName component, int flags, int userId) {
2260        if (!sUserManager.exists(userId)) return null;
2261        enforceCrossUserPermission(Binder.getCallingUid(), userId, false, false, "get receiver info");
2262        synchronized (mPackages) {
2263            PackageParser.Activity a = mReceivers.mActivities.get(component);
2264            if (DEBUG_PACKAGE_INFO) Log.v(
2265                TAG, "getReceiverInfo " + component + ": " + a);
2266            if (a != null && mSettings.isEnabledLPr(a.info, flags, userId)) {
2267                PackageSetting ps = mSettings.mPackages.get(component.getPackageName());
2268                if (ps == null) return null;
2269                return PackageParser.generateActivityInfo(a, flags, ps.readUserState(userId),
2270                        userId);
2271            }
2272        }
2273        return null;
2274    }
2275
2276    @Override
2277    public ServiceInfo getServiceInfo(ComponentName component, int flags, int userId) {
2278        if (!sUserManager.exists(userId)) return null;
2279        enforceCrossUserPermission(Binder.getCallingUid(), userId, false, false, "get service info");
2280        synchronized (mPackages) {
2281            PackageParser.Service s = mServices.mServices.get(component);
2282            if (DEBUG_PACKAGE_INFO) Log.v(
2283                TAG, "getServiceInfo " + component + ": " + s);
2284            if (s != null && mSettings.isEnabledLPr(s.info, flags, userId)) {
2285                PackageSetting ps = mSettings.mPackages.get(component.getPackageName());
2286                if (ps == null) return null;
2287                return PackageParser.generateServiceInfo(s, flags, ps.readUserState(userId),
2288                        userId);
2289            }
2290        }
2291        return null;
2292    }
2293
2294    @Override
2295    public ProviderInfo getProviderInfo(ComponentName component, int flags, int userId) {
2296        if (!sUserManager.exists(userId)) return null;
2297        enforceCrossUserPermission(Binder.getCallingUid(), userId, false, false, "get provider info");
2298        synchronized (mPackages) {
2299            PackageParser.Provider p = mProviders.mProviders.get(component);
2300            if (DEBUG_PACKAGE_INFO) Log.v(
2301                TAG, "getProviderInfo " + component + ": " + p);
2302            if (p != null && mSettings.isEnabledLPr(p.info, flags, userId)) {
2303                PackageSetting ps = mSettings.mPackages.get(component.getPackageName());
2304                if (ps == null) return null;
2305                return PackageParser.generateProviderInfo(p, flags, ps.readUserState(userId),
2306                        userId);
2307            }
2308        }
2309        return null;
2310    }
2311
2312    @Override
2313    public String[] getSystemSharedLibraryNames() {
2314        Set<String> libSet;
2315        synchronized (mPackages) {
2316            libSet = mSharedLibraries.keySet();
2317            int size = libSet.size();
2318            if (size > 0) {
2319                String[] libs = new String[size];
2320                libSet.toArray(libs);
2321                return libs;
2322            }
2323        }
2324        return null;
2325    }
2326
2327    /**
2328     * @hide
2329     */
2330    PackageParser.Package findSharedNonSystemLibrary(String libName) {
2331        synchronized (mPackages) {
2332            PackageManagerService.SharedLibraryEntry lib = mSharedLibraries.get(libName);
2333            if (lib != null && lib.apk != null) {
2334                return mPackages.get(lib.apk);
2335            }
2336        }
2337        return null;
2338    }
2339
2340    @Override
2341    public FeatureInfo[] getSystemAvailableFeatures() {
2342        Collection<FeatureInfo> featSet;
2343        synchronized (mPackages) {
2344            featSet = mAvailableFeatures.values();
2345            int size = featSet.size();
2346            if (size > 0) {
2347                FeatureInfo[] features = new FeatureInfo[size+1];
2348                featSet.toArray(features);
2349                FeatureInfo fi = new FeatureInfo();
2350                fi.reqGlEsVersion = SystemProperties.getInt("ro.opengles.version",
2351                        FeatureInfo.GL_ES_VERSION_UNDEFINED);
2352                features[size] = fi;
2353                return features;
2354            }
2355        }
2356        return null;
2357    }
2358
2359    @Override
2360    public boolean hasSystemFeature(String name) {
2361        synchronized (mPackages) {
2362            return mAvailableFeatures.containsKey(name);
2363        }
2364    }
2365
2366    private void checkValidCaller(int uid, int userId) {
2367        if (UserHandle.getUserId(uid) == userId || uid == Process.SYSTEM_UID || uid == 0)
2368            return;
2369
2370        throw new SecurityException("Caller uid=" + uid
2371                + " is not privileged to communicate with user=" + userId);
2372    }
2373
2374    @Override
2375    public int checkPermission(String permName, String pkgName) {
2376        synchronized (mPackages) {
2377            PackageParser.Package p = mPackages.get(pkgName);
2378            if (p != null && p.mExtras != null) {
2379                PackageSetting ps = (PackageSetting)p.mExtras;
2380                if (ps.sharedUser != null) {
2381                    if (ps.sharedUser.grantedPermissions.contains(permName)) {
2382                        return PackageManager.PERMISSION_GRANTED;
2383                    }
2384                } else if (ps.grantedPermissions.contains(permName)) {
2385                    return PackageManager.PERMISSION_GRANTED;
2386                }
2387            }
2388        }
2389        return PackageManager.PERMISSION_DENIED;
2390    }
2391
2392    @Override
2393    public int checkUidPermission(String permName, int uid) {
2394        synchronized (mPackages) {
2395            Object obj = mSettings.getUserIdLPr(UserHandle.getAppId(uid));
2396            if (obj != null) {
2397                GrantedPermissions gp = (GrantedPermissions)obj;
2398                if (gp.grantedPermissions.contains(permName)) {
2399                    return PackageManager.PERMISSION_GRANTED;
2400                }
2401            } else {
2402                ArraySet<String> perms = mSystemPermissions.get(uid);
2403                if (perms != null && perms.contains(permName)) {
2404                    return PackageManager.PERMISSION_GRANTED;
2405                }
2406            }
2407        }
2408        return PackageManager.PERMISSION_DENIED;
2409    }
2410
2411    /**
2412     * Checks if the request is from the system or an app that has INTERACT_ACROSS_USERS
2413     * or INTERACT_ACROSS_USERS_FULL permissions, if the userid is not for the caller.
2414     * @param checkShell TODO(yamasani):
2415     * @param message the message to log on security exception
2416     */
2417    void enforceCrossUserPermission(int callingUid, int userId, boolean requireFullPermission,
2418            boolean checkShell, String message) {
2419        if (userId < 0) {
2420            throw new IllegalArgumentException("Invalid userId " + userId);
2421        }
2422        if (checkShell) {
2423            enforceShellRestriction(UserManager.DISALLOW_DEBUGGING_FEATURES, callingUid, userId);
2424        }
2425        if (userId == UserHandle.getUserId(callingUid)) return;
2426        if (callingUid != Process.SYSTEM_UID && callingUid != 0) {
2427            if (requireFullPermission) {
2428                mContext.enforceCallingOrSelfPermission(
2429                        android.Manifest.permission.INTERACT_ACROSS_USERS_FULL, message);
2430            } else {
2431                try {
2432                    mContext.enforceCallingOrSelfPermission(
2433                            android.Manifest.permission.INTERACT_ACROSS_USERS_FULL, message);
2434                } catch (SecurityException se) {
2435                    mContext.enforceCallingOrSelfPermission(
2436                            android.Manifest.permission.INTERACT_ACROSS_USERS, message);
2437                }
2438            }
2439        }
2440    }
2441
2442    void enforceShellRestriction(String restriction, int callingUid, int userHandle) {
2443        if (callingUid == Process.SHELL_UID) {
2444            if (userHandle >= 0
2445                    && sUserManager.hasUserRestriction(restriction, userHandle)) {
2446                throw new SecurityException("Shell does not have permission to access user "
2447                        + userHandle);
2448            } else if (userHandle < 0) {
2449                Slog.e(TAG, "Unable to check shell permission for user " + userHandle + "\n\t"
2450                        + Debug.getCallers(3));
2451            }
2452        }
2453    }
2454
2455    private BasePermission findPermissionTreeLP(String permName) {
2456        for(BasePermission bp : mSettings.mPermissionTrees.values()) {
2457            if (permName.startsWith(bp.name) &&
2458                    permName.length() > bp.name.length() &&
2459                    permName.charAt(bp.name.length()) == '.') {
2460                return bp;
2461            }
2462        }
2463        return null;
2464    }
2465
2466    private BasePermission checkPermissionTreeLP(String permName) {
2467        if (permName != null) {
2468            BasePermission bp = findPermissionTreeLP(permName);
2469            if (bp != null) {
2470                if (bp.uid == UserHandle.getAppId(Binder.getCallingUid())) {
2471                    return bp;
2472                }
2473                throw new SecurityException("Calling uid "
2474                        + Binder.getCallingUid()
2475                        + " is not allowed to add to permission tree "
2476                        + bp.name + " owned by uid " + bp.uid);
2477            }
2478        }
2479        throw new SecurityException("No permission tree found for " + permName);
2480    }
2481
2482    static boolean compareStrings(CharSequence s1, CharSequence s2) {
2483        if (s1 == null) {
2484            return s2 == null;
2485        }
2486        if (s2 == null) {
2487            return false;
2488        }
2489        if (s1.getClass() != s2.getClass()) {
2490            return false;
2491        }
2492        return s1.equals(s2);
2493    }
2494
2495    static boolean comparePermissionInfos(PermissionInfo pi1, PermissionInfo pi2) {
2496        if (pi1.icon != pi2.icon) return false;
2497        if (pi1.logo != pi2.logo) return false;
2498        if (pi1.protectionLevel != pi2.protectionLevel) return false;
2499        if (!compareStrings(pi1.name, pi2.name)) return false;
2500        if (!compareStrings(pi1.nonLocalizedLabel, pi2.nonLocalizedLabel)) return false;
2501        // We'll take care of setting this one.
2502        if (!compareStrings(pi1.packageName, pi2.packageName)) return false;
2503        // These are not currently stored in settings.
2504        //if (!compareStrings(pi1.group, pi2.group)) return false;
2505        //if (!compareStrings(pi1.nonLocalizedDescription, pi2.nonLocalizedDescription)) return false;
2506        //if (pi1.labelRes != pi2.labelRes) return false;
2507        //if (pi1.descriptionRes != pi2.descriptionRes) return false;
2508        return true;
2509    }
2510
2511    int permissionInfoFootprint(PermissionInfo info) {
2512        int size = info.name.length();
2513        if (info.nonLocalizedLabel != null) size += info.nonLocalizedLabel.length();
2514        if (info.nonLocalizedDescription != null) size += info.nonLocalizedDescription.length();
2515        return size;
2516    }
2517
2518    int calculateCurrentPermissionFootprintLocked(BasePermission tree) {
2519        int size = 0;
2520        for (BasePermission perm : mSettings.mPermissions.values()) {
2521            if (perm.uid == tree.uid) {
2522                size += perm.name.length() + permissionInfoFootprint(perm.perm.info);
2523            }
2524        }
2525        return size;
2526    }
2527
2528    void enforcePermissionCapLocked(PermissionInfo info, BasePermission tree) {
2529        // We calculate the max size of permissions defined by this uid and throw
2530        // if that plus the size of 'info' would exceed our stated maximum.
2531        if (tree.uid != Process.SYSTEM_UID) {
2532            final int curTreeSize = calculateCurrentPermissionFootprintLocked(tree);
2533            if (curTreeSize + permissionInfoFootprint(info) > MAX_PERMISSION_TREE_FOOTPRINT) {
2534                throw new SecurityException("Permission tree size cap exceeded");
2535            }
2536        }
2537    }
2538
2539    boolean addPermissionLocked(PermissionInfo info, boolean async) {
2540        if (info.labelRes == 0 && info.nonLocalizedLabel == null) {
2541            throw new SecurityException("Label must be specified in permission");
2542        }
2543        BasePermission tree = checkPermissionTreeLP(info.name);
2544        BasePermission bp = mSettings.mPermissions.get(info.name);
2545        boolean added = bp == null;
2546        boolean changed = true;
2547        int fixedLevel = PermissionInfo.fixProtectionLevel(info.protectionLevel);
2548        if (added) {
2549            enforcePermissionCapLocked(info, tree);
2550            bp = new BasePermission(info.name, tree.sourcePackage,
2551                    BasePermission.TYPE_DYNAMIC);
2552        } else if (bp.type != BasePermission.TYPE_DYNAMIC) {
2553            throw new SecurityException(
2554                    "Not allowed to modify non-dynamic permission "
2555                    + info.name);
2556        } else {
2557            if (bp.protectionLevel == fixedLevel
2558                    && bp.perm.owner.equals(tree.perm.owner)
2559                    && bp.uid == tree.uid
2560                    && comparePermissionInfos(bp.perm.info, info)) {
2561                changed = false;
2562            }
2563        }
2564        bp.protectionLevel = fixedLevel;
2565        info = new PermissionInfo(info);
2566        info.protectionLevel = fixedLevel;
2567        bp.perm = new PackageParser.Permission(tree.perm.owner, info);
2568        bp.perm.info.packageName = tree.perm.info.packageName;
2569        bp.uid = tree.uid;
2570        if (added) {
2571            mSettings.mPermissions.put(info.name, bp);
2572        }
2573        if (changed) {
2574            if (!async) {
2575                mSettings.writeLPr();
2576            } else {
2577                scheduleWriteSettingsLocked();
2578            }
2579        }
2580        return added;
2581    }
2582
2583    @Override
2584    public boolean addPermission(PermissionInfo info) {
2585        synchronized (mPackages) {
2586            return addPermissionLocked(info, false);
2587        }
2588    }
2589
2590    @Override
2591    public boolean addPermissionAsync(PermissionInfo info) {
2592        synchronized (mPackages) {
2593            return addPermissionLocked(info, true);
2594        }
2595    }
2596
2597    @Override
2598    public void removePermission(String name) {
2599        synchronized (mPackages) {
2600            checkPermissionTreeLP(name);
2601            BasePermission bp = mSettings.mPermissions.get(name);
2602            if (bp != null) {
2603                if (bp.type != BasePermission.TYPE_DYNAMIC) {
2604                    throw new SecurityException(
2605                            "Not allowed to modify non-dynamic permission "
2606                            + name);
2607                }
2608                mSettings.mPermissions.remove(name);
2609                mSettings.writeLPr();
2610            }
2611        }
2612    }
2613
2614    private static void checkGrantRevokePermissions(PackageParser.Package pkg, BasePermission bp) {
2615        int index = pkg.requestedPermissions.indexOf(bp.name);
2616        if (index == -1) {
2617            throw new SecurityException("Package " + pkg.packageName
2618                    + " has not requested permission " + bp.name);
2619        }
2620        boolean isNormal =
2621                ((bp.protectionLevel&PermissionInfo.PROTECTION_MASK_BASE)
2622                        == PermissionInfo.PROTECTION_NORMAL);
2623        boolean isDangerous =
2624                ((bp.protectionLevel&PermissionInfo.PROTECTION_MASK_BASE)
2625                        == PermissionInfo.PROTECTION_DANGEROUS);
2626        boolean isDevelopment =
2627                ((bp.protectionLevel&PermissionInfo.PROTECTION_FLAG_DEVELOPMENT) != 0);
2628
2629        if (!isNormal && !isDangerous && !isDevelopment) {
2630            throw new SecurityException("Permission " + bp.name
2631                    + " is not a changeable permission type");
2632        }
2633
2634        if (isNormal || isDangerous) {
2635            if (pkg.requestedPermissionsRequired.get(index)) {
2636                throw new SecurityException("Can't change " + bp.name
2637                        + ". It is required by the application");
2638            }
2639        }
2640    }
2641
2642    @Override
2643    public void grantPermission(String packageName, String permissionName) {
2644        mContext.enforceCallingOrSelfPermission(
2645                android.Manifest.permission.GRANT_REVOKE_PERMISSIONS, null);
2646        synchronized (mPackages) {
2647            final PackageParser.Package pkg = mPackages.get(packageName);
2648            if (pkg == null) {
2649                throw new IllegalArgumentException("Unknown package: " + packageName);
2650            }
2651            final BasePermission bp = mSettings.mPermissions.get(permissionName);
2652            if (bp == null) {
2653                throw new IllegalArgumentException("Unknown permission: " + permissionName);
2654            }
2655
2656            checkGrantRevokePermissions(pkg, bp);
2657
2658            final PackageSetting ps = (PackageSetting) pkg.mExtras;
2659            if (ps == null) {
2660                return;
2661            }
2662            final GrantedPermissions gp = (ps.sharedUser != null) ? ps.sharedUser : ps;
2663            if (gp.grantedPermissions.add(permissionName)) {
2664                if (ps.haveGids) {
2665                    gp.gids = appendInts(gp.gids, bp.gids);
2666                }
2667                mSettings.writeLPr();
2668            }
2669        }
2670    }
2671
2672    @Override
2673    public void revokePermission(String packageName, String permissionName) {
2674        int changedAppId = -1;
2675
2676        synchronized (mPackages) {
2677            final PackageParser.Package pkg = mPackages.get(packageName);
2678            if (pkg == null) {
2679                throw new IllegalArgumentException("Unknown package: " + packageName);
2680            }
2681            if (pkg.applicationInfo.uid != Binder.getCallingUid()) {
2682                mContext.enforceCallingOrSelfPermission(
2683                        android.Manifest.permission.GRANT_REVOKE_PERMISSIONS, null);
2684            }
2685            final BasePermission bp = mSettings.mPermissions.get(permissionName);
2686            if (bp == null) {
2687                throw new IllegalArgumentException("Unknown permission: " + permissionName);
2688            }
2689
2690            checkGrantRevokePermissions(pkg, bp);
2691
2692            final PackageSetting ps = (PackageSetting) pkg.mExtras;
2693            if (ps == null) {
2694                return;
2695            }
2696            final GrantedPermissions gp = (ps.sharedUser != null) ? ps.sharedUser : ps;
2697            if (gp.grantedPermissions.remove(permissionName)) {
2698                gp.grantedPermissions.remove(permissionName);
2699                if (ps.haveGids) {
2700                    gp.gids = removeInts(gp.gids, bp.gids);
2701                }
2702                mSettings.writeLPr();
2703                changedAppId = ps.appId;
2704            }
2705        }
2706
2707        if (changedAppId >= 0) {
2708            // We changed the perm on someone, kill its processes.
2709            IActivityManager am = ActivityManagerNative.getDefault();
2710            if (am != null) {
2711                final int callingUserId = UserHandle.getCallingUserId();
2712                final long ident = Binder.clearCallingIdentity();
2713                try {
2714                    //XXX we should only revoke for the calling user's app permissions,
2715                    // but for now we impact all users.
2716                    //am.killUid(UserHandle.getUid(callingUserId, changedAppId),
2717                    //        "revoke " + permissionName);
2718                    int[] users = sUserManager.getUserIds();
2719                    for (int user : users) {
2720                        am.killUid(UserHandle.getUid(user, changedAppId),
2721                                "revoke " + permissionName);
2722                    }
2723                } catch (RemoteException e) {
2724                } finally {
2725                    Binder.restoreCallingIdentity(ident);
2726                }
2727            }
2728        }
2729    }
2730
2731    @Override
2732    public boolean isProtectedBroadcast(String actionName) {
2733        synchronized (mPackages) {
2734            return mProtectedBroadcasts.contains(actionName);
2735        }
2736    }
2737
2738    @Override
2739    public int checkSignatures(String pkg1, String pkg2) {
2740        synchronized (mPackages) {
2741            final PackageParser.Package p1 = mPackages.get(pkg1);
2742            final PackageParser.Package p2 = mPackages.get(pkg2);
2743            if (p1 == null || p1.mExtras == null
2744                    || p2 == null || p2.mExtras == null) {
2745                return PackageManager.SIGNATURE_UNKNOWN_PACKAGE;
2746            }
2747            return compareSignatures(p1.mSignatures, p2.mSignatures);
2748        }
2749    }
2750
2751    @Override
2752    public int checkUidSignatures(int uid1, int uid2) {
2753        // Map to base uids.
2754        uid1 = UserHandle.getAppId(uid1);
2755        uid2 = UserHandle.getAppId(uid2);
2756        // reader
2757        synchronized (mPackages) {
2758            Signature[] s1;
2759            Signature[] s2;
2760            Object obj = mSettings.getUserIdLPr(uid1);
2761            if (obj != null) {
2762                if (obj instanceof SharedUserSetting) {
2763                    s1 = ((SharedUserSetting)obj).signatures.mSignatures;
2764                } else if (obj instanceof PackageSetting) {
2765                    s1 = ((PackageSetting)obj).signatures.mSignatures;
2766                } else {
2767                    return PackageManager.SIGNATURE_UNKNOWN_PACKAGE;
2768                }
2769            } else {
2770                return PackageManager.SIGNATURE_UNKNOWN_PACKAGE;
2771            }
2772            obj = mSettings.getUserIdLPr(uid2);
2773            if (obj != null) {
2774                if (obj instanceof SharedUserSetting) {
2775                    s2 = ((SharedUserSetting)obj).signatures.mSignatures;
2776                } else if (obj instanceof PackageSetting) {
2777                    s2 = ((PackageSetting)obj).signatures.mSignatures;
2778                } else {
2779                    return PackageManager.SIGNATURE_UNKNOWN_PACKAGE;
2780                }
2781            } else {
2782                return PackageManager.SIGNATURE_UNKNOWN_PACKAGE;
2783            }
2784            return compareSignatures(s1, s2);
2785        }
2786    }
2787
2788    /**
2789     * Compares two sets of signatures. Returns:
2790     * <br />
2791     * {@link PackageManager#SIGNATURE_NEITHER_SIGNED}: if both signature sets are null,
2792     * <br />
2793     * {@link PackageManager#SIGNATURE_FIRST_NOT_SIGNED}: if the first signature set is null,
2794     * <br />
2795     * {@link PackageManager#SIGNATURE_SECOND_NOT_SIGNED}: if the second signature set is null,
2796     * <br />
2797     * {@link PackageManager#SIGNATURE_MATCH}: if the two signature sets are identical,
2798     * <br />
2799     * {@link PackageManager#SIGNATURE_NO_MATCH}: if the two signature sets differ.
2800     */
2801    static int compareSignatures(Signature[] s1, Signature[] s2) {
2802        if (s1 == null) {
2803            return s2 == null
2804                    ? PackageManager.SIGNATURE_NEITHER_SIGNED
2805                    : PackageManager.SIGNATURE_FIRST_NOT_SIGNED;
2806        }
2807
2808        if (s2 == null) {
2809            return PackageManager.SIGNATURE_SECOND_NOT_SIGNED;
2810        }
2811
2812        if (s1.length != s2.length) {
2813            return PackageManager.SIGNATURE_NO_MATCH;
2814        }
2815
2816        // Since both signature sets are of size 1, we can compare without HashSets.
2817        if (s1.length == 1) {
2818            return s1[0].equals(s2[0]) ?
2819                    PackageManager.SIGNATURE_MATCH :
2820                    PackageManager.SIGNATURE_NO_MATCH;
2821        }
2822
2823        ArraySet<Signature> set1 = new ArraySet<Signature>();
2824        for (Signature sig : s1) {
2825            set1.add(sig);
2826        }
2827        ArraySet<Signature> set2 = new ArraySet<Signature>();
2828        for (Signature sig : s2) {
2829            set2.add(sig);
2830        }
2831        // Make sure s2 contains all signatures in s1.
2832        if (set1.equals(set2)) {
2833            return PackageManager.SIGNATURE_MATCH;
2834        }
2835        return PackageManager.SIGNATURE_NO_MATCH;
2836    }
2837
2838    /**
2839     * If the database version for this type of package (internal storage or
2840     * external storage) is less than the version where package signatures
2841     * were updated, return true.
2842     */
2843    private boolean isCompatSignatureUpdateNeeded(PackageParser.Package scannedPkg) {
2844        return (isExternal(scannedPkg) && mSettings.isExternalDatabaseVersionOlderThan(
2845                DatabaseVersion.SIGNATURE_END_ENTITY))
2846                || (!isExternal(scannedPkg) && mSettings.isInternalDatabaseVersionOlderThan(
2847                        DatabaseVersion.SIGNATURE_END_ENTITY));
2848    }
2849
2850    /**
2851     * Used for backward compatibility to make sure any packages with
2852     * certificate chains get upgraded to the new style. {@code existingSigs}
2853     * will be in the old format (since they were stored on disk from before the
2854     * system upgrade) and {@code scannedSigs} will be in the newer format.
2855     */
2856    private int compareSignaturesCompat(PackageSignatures existingSigs,
2857            PackageParser.Package scannedPkg) {
2858        if (!isCompatSignatureUpdateNeeded(scannedPkg)) {
2859            return PackageManager.SIGNATURE_NO_MATCH;
2860        }
2861
2862        ArraySet<Signature> existingSet = new ArraySet<Signature>();
2863        for (Signature sig : existingSigs.mSignatures) {
2864            existingSet.add(sig);
2865        }
2866        ArraySet<Signature> scannedCompatSet = new ArraySet<Signature>();
2867        for (Signature sig : scannedPkg.mSignatures) {
2868            try {
2869                Signature[] chainSignatures = sig.getChainSignatures();
2870                for (Signature chainSig : chainSignatures) {
2871                    scannedCompatSet.add(chainSig);
2872                }
2873            } catch (CertificateEncodingException e) {
2874                scannedCompatSet.add(sig);
2875            }
2876        }
2877        /*
2878         * Make sure the expanded scanned set contains all signatures in the
2879         * existing one.
2880         */
2881        if (scannedCompatSet.equals(existingSet)) {
2882            // Migrate the old signatures to the new scheme.
2883            existingSigs.assignSignatures(scannedPkg.mSignatures);
2884            // The new KeySets will be re-added later in the scanning process.
2885            synchronized (mPackages) {
2886                mSettings.mKeySetManagerService.removeAppKeySetDataLPw(scannedPkg.packageName);
2887            }
2888            return PackageManager.SIGNATURE_MATCH;
2889        }
2890        return PackageManager.SIGNATURE_NO_MATCH;
2891    }
2892
2893    private boolean isRecoverSignatureUpdateNeeded(PackageParser.Package scannedPkg) {
2894        if (isExternal(scannedPkg)) {
2895            return mSettings.isExternalDatabaseVersionOlderThan(
2896                    DatabaseVersion.SIGNATURE_MALFORMED_RECOVER);
2897        } else {
2898            return mSettings.isInternalDatabaseVersionOlderThan(
2899                    DatabaseVersion.SIGNATURE_MALFORMED_RECOVER);
2900        }
2901    }
2902
2903    private int compareSignaturesRecover(PackageSignatures existingSigs,
2904            PackageParser.Package scannedPkg) {
2905        if (!isRecoverSignatureUpdateNeeded(scannedPkg)) {
2906            return PackageManager.SIGNATURE_NO_MATCH;
2907        }
2908
2909        String msg = null;
2910        try {
2911            if (Signature.areEffectiveMatch(existingSigs.mSignatures, scannedPkg.mSignatures)) {
2912                logCriticalInfo(Log.INFO, "Recovered effectively matching certificates for "
2913                        + scannedPkg.packageName);
2914                return PackageManager.SIGNATURE_MATCH;
2915            }
2916        } catch (CertificateException e) {
2917            msg = e.getMessage();
2918        }
2919
2920        logCriticalInfo(Log.INFO,
2921                "Failed to recover certificates for " + scannedPkg.packageName + ": " + msg);
2922        return PackageManager.SIGNATURE_NO_MATCH;
2923    }
2924
2925    @Override
2926    public String[] getPackagesForUid(int uid) {
2927        uid = UserHandle.getAppId(uid);
2928        // reader
2929        synchronized (mPackages) {
2930            Object obj = mSettings.getUserIdLPr(uid);
2931            if (obj instanceof SharedUserSetting) {
2932                final SharedUserSetting sus = (SharedUserSetting) obj;
2933                final int N = sus.packages.size();
2934                final String[] res = new String[N];
2935                final Iterator<PackageSetting> it = sus.packages.iterator();
2936                int i = 0;
2937                while (it.hasNext()) {
2938                    res[i++] = it.next().name;
2939                }
2940                return res;
2941            } else if (obj instanceof PackageSetting) {
2942                final PackageSetting ps = (PackageSetting) obj;
2943                return new String[] { ps.name };
2944            }
2945        }
2946        return null;
2947    }
2948
2949    @Override
2950    public String getNameForUid(int uid) {
2951        // reader
2952        synchronized (mPackages) {
2953            Object obj = mSettings.getUserIdLPr(UserHandle.getAppId(uid));
2954            if (obj instanceof SharedUserSetting) {
2955                final SharedUserSetting sus = (SharedUserSetting) obj;
2956                return sus.name + ":" + sus.userId;
2957            } else if (obj instanceof PackageSetting) {
2958                final PackageSetting ps = (PackageSetting) obj;
2959                return ps.name;
2960            }
2961        }
2962        return null;
2963    }
2964
2965    @Override
2966    public int getUidForSharedUser(String sharedUserName) {
2967        if(sharedUserName == null) {
2968            return -1;
2969        }
2970        // reader
2971        synchronized (mPackages) {
2972            final SharedUserSetting suid = mSettings.getSharedUserLPw(sharedUserName, 0, 0, false);
2973            if (suid == null) {
2974                return -1;
2975            }
2976            return suid.userId;
2977        }
2978    }
2979
2980    @Override
2981    public int getFlagsForUid(int uid) {
2982        synchronized (mPackages) {
2983            Object obj = mSettings.getUserIdLPr(UserHandle.getAppId(uid));
2984            if (obj instanceof SharedUserSetting) {
2985                final SharedUserSetting sus = (SharedUserSetting) obj;
2986                return sus.pkgFlags;
2987            } else if (obj instanceof PackageSetting) {
2988                final PackageSetting ps = (PackageSetting) obj;
2989                return ps.pkgFlags;
2990            }
2991        }
2992        return 0;
2993    }
2994
2995    @Override
2996    public int getPrivateFlagsForUid(int uid) {
2997        synchronized (mPackages) {
2998            Object obj = mSettings.getUserIdLPr(UserHandle.getAppId(uid));
2999            if (obj instanceof SharedUserSetting) {
3000                final SharedUserSetting sus = (SharedUserSetting) obj;
3001                return sus.pkgPrivateFlags;
3002            } else if (obj instanceof PackageSetting) {
3003                final PackageSetting ps = (PackageSetting) obj;
3004                return ps.pkgPrivateFlags;
3005            }
3006        }
3007        return 0;
3008    }
3009
3010    @Override
3011    public boolean isUidPrivileged(int uid) {
3012        uid = UserHandle.getAppId(uid);
3013        // reader
3014        synchronized (mPackages) {
3015            Object obj = mSettings.getUserIdLPr(uid);
3016            if (obj instanceof SharedUserSetting) {
3017                final SharedUserSetting sus = (SharedUserSetting) obj;
3018                final Iterator<PackageSetting> it = sus.packages.iterator();
3019                while (it.hasNext()) {
3020                    if (it.next().isPrivileged()) {
3021                        return true;
3022                    }
3023                }
3024            } else if (obj instanceof PackageSetting) {
3025                final PackageSetting ps = (PackageSetting) obj;
3026                return ps.isPrivileged();
3027            }
3028        }
3029        return false;
3030    }
3031
3032    @Override
3033    public String[] getAppOpPermissionPackages(String permissionName) {
3034        synchronized (mPackages) {
3035            ArraySet<String> pkgs = mAppOpPermissionPackages.get(permissionName);
3036            if (pkgs == null) {
3037                return null;
3038            }
3039            return pkgs.toArray(new String[pkgs.size()]);
3040        }
3041    }
3042
3043    @Override
3044    public ResolveInfo resolveIntent(Intent intent, String resolvedType,
3045            int flags, int userId) {
3046        if (!sUserManager.exists(userId)) return null;
3047        enforceCrossUserPermission(Binder.getCallingUid(), userId, false, false, "resolve intent");
3048        List<ResolveInfo> query = queryIntentActivities(intent, resolvedType, flags, userId);
3049        return chooseBestActivity(intent, resolvedType, flags, query, userId);
3050    }
3051
3052    @Override
3053    public void setLastChosenActivity(Intent intent, String resolvedType, int flags,
3054            IntentFilter filter, int match, ComponentName activity) {
3055        final int userId = UserHandle.getCallingUserId();
3056        if (DEBUG_PREFERRED) {
3057            Log.v(TAG, "setLastChosenActivity intent=" + intent
3058                + " resolvedType=" + resolvedType
3059                + " flags=" + flags
3060                + " filter=" + filter
3061                + " match=" + match
3062                + " activity=" + activity);
3063            filter.dump(new PrintStreamPrinter(System.out), "    ");
3064        }
3065        intent.setComponent(null);
3066        List<ResolveInfo> query = queryIntentActivities(intent, resolvedType, flags, userId);
3067        // Find any earlier preferred or last chosen entries and nuke them
3068        findPreferredActivity(intent, resolvedType,
3069                flags, query, 0, false, true, false, userId);
3070        // Add the new activity as the last chosen for this filter
3071        addPreferredActivityInternal(filter, match, null, activity, false, userId,
3072                "Setting last chosen");
3073    }
3074
3075    @Override
3076    public ResolveInfo getLastChosenActivity(Intent intent, String resolvedType, int flags) {
3077        final int userId = UserHandle.getCallingUserId();
3078        if (DEBUG_PREFERRED) Log.v(TAG, "Querying last chosen activity for " + intent);
3079        List<ResolveInfo> query = queryIntentActivities(intent, resolvedType, flags, userId);
3080        return findPreferredActivity(intent, resolvedType, flags, query, 0,
3081                false, false, false, userId);
3082    }
3083
3084    private ResolveInfo chooseBestActivity(Intent intent, String resolvedType,
3085            int flags, List<ResolveInfo> query, int userId) {
3086        if (query != null) {
3087            final int N = query.size();
3088            if (N == 1) {
3089                return query.get(0);
3090            } else if (N > 1) {
3091                final boolean debug = ((intent.getFlags() & Intent.FLAG_DEBUG_LOG_RESOLUTION) != 0);
3092                // If there is more than one activity with the same priority,
3093                // then let the user decide between them.
3094                ResolveInfo r0 = query.get(0);
3095                ResolveInfo r1 = query.get(1);
3096                if (DEBUG_INTENT_MATCHING || debug) {
3097                    Slog.v(TAG, r0.activityInfo.name + "=" + r0.priority + " vs "
3098                            + r1.activityInfo.name + "=" + r1.priority);
3099                }
3100                // If the first activity has a higher priority, or a different
3101                // default, then it is always desireable to pick it.
3102                if (r0.priority != r1.priority
3103                        || r0.preferredOrder != r1.preferredOrder
3104                        || r0.isDefault != r1.isDefault) {
3105                    return query.get(0);
3106                }
3107                // If we have saved a preference for a preferred activity for
3108                // this Intent, use that.
3109                ResolveInfo ri = findPreferredActivity(intent, resolvedType,
3110                        flags, query, r0.priority, true, false, debug, userId);
3111                if (ri != null) {
3112                    return ri;
3113                }
3114                if (userId != 0) {
3115                    ri = new ResolveInfo(mResolveInfo);
3116                    ri.activityInfo = new ActivityInfo(ri.activityInfo);
3117                    ri.activityInfo.applicationInfo = new ApplicationInfo(
3118                            ri.activityInfo.applicationInfo);
3119                    ri.activityInfo.applicationInfo.uid = UserHandle.getUid(userId,
3120                            UserHandle.getAppId(ri.activityInfo.applicationInfo.uid));
3121                    return ri;
3122                }
3123                return mResolveInfo;
3124            }
3125        }
3126        return null;
3127    }
3128
3129    private ResolveInfo findPersistentPreferredActivityLP(Intent intent, String resolvedType,
3130            int flags, List<ResolveInfo> query, boolean debug, int userId) {
3131        final int N = query.size();
3132        PersistentPreferredIntentResolver ppir = mSettings.mPersistentPreferredActivities
3133                .get(userId);
3134        // Get the list of persistent preferred activities that handle the intent
3135        if (DEBUG_PREFERRED || debug) Slog.v(TAG, "Looking for presistent preferred activities...");
3136        List<PersistentPreferredActivity> pprefs = ppir != null
3137                ? ppir.queryIntent(intent, resolvedType,
3138                        (flags & PackageManager.MATCH_DEFAULT_ONLY) != 0, userId)
3139                : null;
3140        if (pprefs != null && pprefs.size() > 0) {
3141            final int M = pprefs.size();
3142            for (int i=0; i<M; i++) {
3143                final PersistentPreferredActivity ppa = pprefs.get(i);
3144                if (DEBUG_PREFERRED || debug) {
3145                    Slog.v(TAG, "Checking PersistentPreferredActivity ds="
3146                            + (ppa.countDataSchemes() > 0 ? ppa.getDataScheme(0) : "<none>")
3147                            + "\n  component=" + ppa.mComponent);
3148                    ppa.dump(new LogPrinter(Log.VERBOSE, TAG, Log.LOG_ID_SYSTEM), "  ");
3149                }
3150                final ActivityInfo ai = getActivityInfo(ppa.mComponent,
3151                        flags | PackageManager.GET_DISABLED_COMPONENTS, userId);
3152                if (DEBUG_PREFERRED || debug) {
3153                    Slog.v(TAG, "Found persistent preferred activity:");
3154                    if (ai != null) {
3155                        ai.dump(new LogPrinter(Log.VERBOSE, TAG, Log.LOG_ID_SYSTEM), "  ");
3156                    } else {
3157                        Slog.v(TAG, "  null");
3158                    }
3159                }
3160                if (ai == null) {
3161                    // This previously registered persistent preferred activity
3162                    // component is no longer known. Ignore it and do NOT remove it.
3163                    continue;
3164                }
3165                for (int j=0; j<N; j++) {
3166                    final ResolveInfo ri = query.get(j);
3167                    if (!ri.activityInfo.applicationInfo.packageName
3168                            .equals(ai.applicationInfo.packageName)) {
3169                        continue;
3170                    }
3171                    if (!ri.activityInfo.name.equals(ai.name)) {
3172                        continue;
3173                    }
3174                    //  Found a persistent preference that can handle the intent.
3175                    if (DEBUG_PREFERRED || debug) {
3176                        Slog.v(TAG, "Returning persistent preferred activity: " +
3177                                ri.activityInfo.packageName + "/" + ri.activityInfo.name);
3178                    }
3179                    return ri;
3180                }
3181            }
3182        }
3183        return null;
3184    }
3185
3186    ResolveInfo findPreferredActivity(Intent intent, String resolvedType, int flags,
3187            List<ResolveInfo> query, int priority, boolean always,
3188            boolean removeMatches, boolean debug, int userId) {
3189        if (!sUserManager.exists(userId)) return null;
3190        // writer
3191        synchronized (mPackages) {
3192            if (intent.getSelector() != null) {
3193                intent = intent.getSelector();
3194            }
3195            if (DEBUG_PREFERRED) intent.addFlags(Intent.FLAG_DEBUG_LOG_RESOLUTION);
3196
3197            // Try to find a matching persistent preferred activity.
3198            ResolveInfo pri = findPersistentPreferredActivityLP(intent, resolvedType, flags, query,
3199                    debug, userId);
3200
3201            // If a persistent preferred activity matched, use it.
3202            if (pri != null) {
3203                return pri;
3204            }
3205
3206            PreferredIntentResolver pir = mSettings.mPreferredActivities.get(userId);
3207            // Get the list of preferred activities that handle the intent
3208            if (DEBUG_PREFERRED || debug) Slog.v(TAG, "Looking for preferred activities...");
3209            List<PreferredActivity> prefs = pir != null
3210                    ? pir.queryIntent(intent, resolvedType,
3211                            (flags & PackageManager.MATCH_DEFAULT_ONLY) != 0, userId)
3212                    : null;
3213            if (prefs != null && prefs.size() > 0) {
3214                boolean changed = false;
3215                try {
3216                    // First figure out how good the original match set is.
3217                    // We will only allow preferred activities that came
3218                    // from the same match quality.
3219                    int match = 0;
3220
3221                    if (DEBUG_PREFERRED || debug) Slog.v(TAG, "Figuring out best match...");
3222
3223                    final int N = query.size();
3224                    for (int j=0; j<N; j++) {
3225                        final ResolveInfo ri = query.get(j);
3226                        if (DEBUG_PREFERRED || debug) Slog.v(TAG, "Match for " + ri.activityInfo
3227                                + ": 0x" + Integer.toHexString(match));
3228                        if (ri.match > match) {
3229                            match = ri.match;
3230                        }
3231                    }
3232
3233                    if (DEBUG_PREFERRED || debug) Slog.v(TAG, "Best match: 0x"
3234                            + Integer.toHexString(match));
3235
3236                    match &= IntentFilter.MATCH_CATEGORY_MASK;
3237                    final int M = prefs.size();
3238                    for (int i=0; i<M; i++) {
3239                        final PreferredActivity pa = prefs.get(i);
3240                        if (DEBUG_PREFERRED || debug) {
3241                            Slog.v(TAG, "Checking PreferredActivity ds="
3242                                    + (pa.countDataSchemes() > 0 ? pa.getDataScheme(0) : "<none>")
3243                                    + "\n  component=" + pa.mPref.mComponent);
3244                            pa.dump(new LogPrinter(Log.VERBOSE, TAG, Log.LOG_ID_SYSTEM), "  ");
3245                        }
3246                        if (pa.mPref.mMatch != match) {
3247                            if (DEBUG_PREFERRED || debug) Slog.v(TAG, "Skipping bad match "
3248                                    + Integer.toHexString(pa.mPref.mMatch));
3249                            continue;
3250                        }
3251                        // If it's not an "always" type preferred activity and that's what we're
3252                        // looking for, skip it.
3253                        if (always && !pa.mPref.mAlways) {
3254                            if (DEBUG_PREFERRED || debug) Slog.v(TAG, "Skipping mAlways=false entry");
3255                            continue;
3256                        }
3257                        final ActivityInfo ai = getActivityInfo(pa.mPref.mComponent,
3258                                flags | PackageManager.GET_DISABLED_COMPONENTS, userId);
3259                        if (DEBUG_PREFERRED || debug) {
3260                            Slog.v(TAG, "Found preferred activity:");
3261                            if (ai != null) {
3262                                ai.dump(new LogPrinter(Log.VERBOSE, TAG, Log.LOG_ID_SYSTEM), "  ");
3263                            } else {
3264                                Slog.v(TAG, "  null");
3265                            }
3266                        }
3267                        if (ai == null) {
3268                            // This previously registered preferred activity
3269                            // component is no longer known.  Most likely an update
3270                            // to the app was installed and in the new version this
3271                            // component no longer exists.  Clean it up by removing
3272                            // it from the preferred activities list, and skip it.
3273                            Slog.w(TAG, "Removing dangling preferred activity: "
3274                                    + pa.mPref.mComponent);
3275                            pir.removeFilter(pa);
3276                            changed = true;
3277                            continue;
3278                        }
3279                        for (int j=0; j<N; j++) {
3280                            final ResolveInfo ri = query.get(j);
3281                            if (!ri.activityInfo.applicationInfo.packageName
3282                                    .equals(ai.applicationInfo.packageName)) {
3283                                continue;
3284                            }
3285                            if (!ri.activityInfo.name.equals(ai.name)) {
3286                                continue;
3287                            }
3288
3289                            if (removeMatches) {
3290                                pir.removeFilter(pa);
3291                                changed = true;
3292                                if (DEBUG_PREFERRED) {
3293                                    Slog.v(TAG, "Removing match " + pa.mPref.mComponent);
3294                                }
3295                                break;
3296                            }
3297
3298                            // Okay we found a previously set preferred or last chosen app.
3299                            // If the result set is different from when this
3300                            // was created, we need to clear it and re-ask the
3301                            // user their preference, if we're looking for an "always" type entry.
3302                            if (always && !pa.mPref.sameSet(query)) {
3303                                Slog.i(TAG, "Result set changed, dropping preferred activity for "
3304                                        + intent + " type " + resolvedType);
3305                                if (DEBUG_PREFERRED) {
3306                                    Slog.v(TAG, "Removing preferred activity since set changed "
3307                                            + pa.mPref.mComponent);
3308                                }
3309                                pir.removeFilter(pa);
3310                                // Re-add the filter as a "last chosen" entry (!always)
3311                                PreferredActivity lastChosen = new PreferredActivity(
3312                                        pa, pa.mPref.mMatch, null, pa.mPref.mComponent, false);
3313                                pir.addFilter(lastChosen);
3314                                changed = true;
3315                                return null;
3316                            }
3317
3318                            // Yay! Either the set matched or we're looking for the last chosen
3319                            if (DEBUG_PREFERRED || debug) Slog.v(TAG, "Returning preferred activity: "
3320                                    + ri.activityInfo.packageName + "/" + ri.activityInfo.name);
3321                            return ri;
3322                        }
3323                    }
3324                } finally {
3325                    if (changed) {
3326                        if (DEBUG_PREFERRED) {
3327                            Slog.v(TAG, "Preferred activity bookkeeping changed; writing restrictions");
3328                        }
3329                        scheduleWritePackageRestrictionsLocked(userId);
3330                    }
3331                }
3332            }
3333        }
3334        if (DEBUG_PREFERRED || debug) Slog.v(TAG, "No preferred activity to return");
3335        return null;
3336    }
3337
3338    /*
3339     * Returns if intent can be forwarded from the sourceUserId to the targetUserId
3340     */
3341    @Override
3342    public boolean canForwardTo(Intent intent, String resolvedType, int sourceUserId,
3343            int targetUserId) {
3344        mContext.enforceCallingOrSelfPermission(
3345                android.Manifest.permission.INTERACT_ACROSS_USERS_FULL, null);
3346        List<CrossProfileIntentFilter> matches =
3347                getMatchingCrossProfileIntentFilters(intent, resolvedType, sourceUserId);
3348        if (matches != null) {
3349            int size = matches.size();
3350            for (int i = 0; i < size; i++) {
3351                if (matches.get(i).getTargetUserId() == targetUserId) return true;
3352            }
3353        }
3354        return false;
3355    }
3356
3357    private List<CrossProfileIntentFilter> getMatchingCrossProfileIntentFilters(Intent intent,
3358            String resolvedType, int userId) {
3359        CrossProfileIntentResolver resolver = mSettings.mCrossProfileIntentResolvers.get(userId);
3360        if (resolver != null) {
3361            return resolver.queryIntent(intent, resolvedType, false, userId);
3362        }
3363        return null;
3364    }
3365
3366    @Override
3367    public List<ResolveInfo> queryIntentActivities(Intent intent,
3368            String resolvedType, int flags, int userId) {
3369        if (!sUserManager.exists(userId)) return Collections.emptyList();
3370        enforceCrossUserPermission(Binder.getCallingUid(), userId, false, false, "query intent activities");
3371        ComponentName comp = intent.getComponent();
3372        if (comp == null) {
3373            if (intent.getSelector() != null) {
3374                intent = intent.getSelector();
3375                comp = intent.getComponent();
3376            }
3377        }
3378
3379        if (comp != null) {
3380            final List<ResolveInfo> list = new ArrayList<ResolveInfo>(1);
3381            final ActivityInfo ai = getActivityInfo(comp, flags, userId);
3382            if (ai != null) {
3383                final ResolveInfo ri = new ResolveInfo();
3384                ri.activityInfo = ai;
3385                list.add(ri);
3386            }
3387            return list;
3388        }
3389
3390        // reader
3391        synchronized (mPackages) {
3392            final String pkgName = intent.getPackage();
3393            if (pkgName == null) {
3394                List<CrossProfileIntentFilter> matchingFilters =
3395                        getMatchingCrossProfileIntentFilters(intent, resolvedType, userId);
3396                // Check for results that need to skip the current profile.
3397                ResolveInfo resolveInfo  = querySkipCurrentProfileIntents(matchingFilters, intent,
3398                        resolvedType, flags, userId);
3399                if (resolveInfo != null) {
3400                    List<ResolveInfo> result = new ArrayList<ResolveInfo>(1);
3401                    result.add(resolveInfo);
3402                    return result;
3403                }
3404                // Check for cross profile results.
3405                resolveInfo = queryCrossProfileIntents(
3406                        matchingFilters, intent, resolvedType, flags, userId);
3407
3408                // Check for results in the current profile.
3409                List<ResolveInfo> result = mActivities.queryIntent(
3410                        intent, resolvedType, flags, userId);
3411                if (resolveInfo != null) {
3412                    result.add(resolveInfo);
3413                    Collections.sort(result, mResolvePrioritySorter);
3414                }
3415                return result;
3416            }
3417            final PackageParser.Package pkg = mPackages.get(pkgName);
3418            if (pkg != null) {
3419                return mActivities.queryIntentForPackage(intent, resolvedType, flags,
3420                        pkg.activities, userId);
3421            }
3422            return new ArrayList<ResolveInfo>();
3423        }
3424    }
3425
3426    private ResolveInfo querySkipCurrentProfileIntents(
3427            List<CrossProfileIntentFilter> matchingFilters, Intent intent, String resolvedType,
3428            int flags, int sourceUserId) {
3429        if (matchingFilters != null) {
3430            int size = matchingFilters.size();
3431            for (int i = 0; i < size; i ++) {
3432                CrossProfileIntentFilter filter = matchingFilters.get(i);
3433                if ((filter.getFlags() & PackageManager.SKIP_CURRENT_PROFILE) != 0) {
3434                    // Checking if there are activities in the target user that can handle the
3435                    // intent.
3436                    ResolveInfo resolveInfo = checkTargetCanHandle(filter, intent, resolvedType,
3437                            flags, sourceUserId);
3438                    if (resolveInfo != null) {
3439                        return resolveInfo;
3440                    }
3441                }
3442            }
3443        }
3444        return null;
3445    }
3446
3447    // Return matching ResolveInfo if any for skip current profile intent filters.
3448    private ResolveInfo queryCrossProfileIntents(
3449            List<CrossProfileIntentFilter> matchingFilters, Intent intent, String resolvedType,
3450            int flags, int sourceUserId) {
3451        if (matchingFilters != null) {
3452            // Two {@link CrossProfileIntentFilter}s can have the same targetUserId and
3453            // match the same intent. For performance reasons, it is better not to
3454            // run queryIntent twice for the same userId
3455            SparseBooleanArray alreadyTriedUserIds = new SparseBooleanArray();
3456            int size = matchingFilters.size();
3457            for (int i = 0; i < size; i++) {
3458                CrossProfileIntentFilter filter = matchingFilters.get(i);
3459                int targetUserId = filter.getTargetUserId();
3460                if ((filter.getFlags() & PackageManager.SKIP_CURRENT_PROFILE) == 0
3461                        && !alreadyTriedUserIds.get(targetUserId)) {
3462                    // Checking if there are activities in the target user that can handle the
3463                    // intent.
3464                    ResolveInfo resolveInfo = checkTargetCanHandle(filter, intent, resolvedType,
3465                            flags, sourceUserId);
3466                    if (resolveInfo != null) return resolveInfo;
3467                    alreadyTriedUserIds.put(targetUserId, true);
3468                }
3469            }
3470        }
3471        return null;
3472    }
3473
3474    private ResolveInfo checkTargetCanHandle(CrossProfileIntentFilter filter, Intent intent,
3475            String resolvedType, int flags, int sourceUserId) {
3476        List<ResolveInfo> resultTargetUser = mActivities.queryIntent(intent,
3477                resolvedType, flags, filter.getTargetUserId());
3478        if (resultTargetUser != null && !resultTargetUser.isEmpty()) {
3479            return createForwardingResolveInfo(filter, sourceUserId, filter.getTargetUserId());
3480        }
3481        return null;
3482    }
3483
3484    private ResolveInfo createForwardingResolveInfo(IntentFilter filter,
3485            int sourceUserId, int targetUserId) {
3486        ResolveInfo forwardingResolveInfo = new ResolveInfo();
3487        String className;
3488        if (targetUserId == UserHandle.USER_OWNER) {
3489            className = FORWARD_INTENT_TO_USER_OWNER;
3490        } else {
3491            className = FORWARD_INTENT_TO_MANAGED_PROFILE;
3492        }
3493        ComponentName forwardingActivityComponentName = new ComponentName(
3494                mAndroidApplication.packageName, className);
3495        ActivityInfo forwardingActivityInfo = getActivityInfo(forwardingActivityComponentName, 0,
3496                sourceUserId);
3497        if (targetUserId == UserHandle.USER_OWNER) {
3498            forwardingActivityInfo.showUserIcon = UserHandle.USER_OWNER;
3499            forwardingResolveInfo.noResourceId = true;
3500        }
3501        forwardingResolveInfo.activityInfo = forwardingActivityInfo;
3502        forwardingResolveInfo.priority = 0;
3503        forwardingResolveInfo.preferredOrder = 0;
3504        forwardingResolveInfo.match = 0;
3505        forwardingResolveInfo.isDefault = true;
3506        forwardingResolveInfo.filter = filter;
3507        forwardingResolveInfo.targetUserId = targetUserId;
3508        return forwardingResolveInfo;
3509    }
3510
3511    @Override
3512    public List<ResolveInfo> queryIntentActivityOptions(ComponentName caller,
3513            Intent[] specifics, String[] specificTypes, Intent intent,
3514            String resolvedType, int flags, int userId) {
3515        if (!sUserManager.exists(userId)) return Collections.emptyList();
3516        enforceCrossUserPermission(Binder.getCallingUid(), userId, false,
3517                false, "query intent activity options");
3518        final String resultsAction = intent.getAction();
3519
3520        List<ResolveInfo> results = queryIntentActivities(intent, resolvedType, flags
3521                | PackageManager.GET_RESOLVED_FILTER, userId);
3522
3523        if (DEBUG_INTENT_MATCHING) {
3524            Log.v(TAG, "Query " + intent + ": " + results);
3525        }
3526
3527        int specificsPos = 0;
3528        int N;
3529
3530        // todo: note that the algorithm used here is O(N^2).  This
3531        // isn't a problem in our current environment, but if we start running
3532        // into situations where we have more than 5 or 10 matches then this
3533        // should probably be changed to something smarter...
3534
3535        // First we go through and resolve each of the specific items
3536        // that were supplied, taking care of removing any corresponding
3537        // duplicate items in the generic resolve list.
3538        if (specifics != null) {
3539            for (int i=0; i<specifics.length; i++) {
3540                final Intent sintent = specifics[i];
3541                if (sintent == null) {
3542                    continue;
3543                }
3544
3545                if (DEBUG_INTENT_MATCHING) {
3546                    Log.v(TAG, "Specific #" + i + ": " + sintent);
3547                }
3548
3549                String action = sintent.getAction();
3550                if (resultsAction != null && resultsAction.equals(action)) {
3551                    // If this action was explicitly requested, then don't
3552                    // remove things that have it.
3553                    action = null;
3554                }
3555
3556                ResolveInfo ri = null;
3557                ActivityInfo ai = null;
3558
3559                ComponentName comp = sintent.getComponent();
3560                if (comp == null) {
3561                    ri = resolveIntent(
3562                        sintent,
3563                        specificTypes != null ? specificTypes[i] : null,
3564                            flags, userId);
3565                    if (ri == null) {
3566                        continue;
3567                    }
3568                    if (ri == mResolveInfo) {
3569                        // ACK!  Must do something better with this.
3570                    }
3571                    ai = ri.activityInfo;
3572                    comp = new ComponentName(ai.applicationInfo.packageName,
3573                            ai.name);
3574                } else {
3575                    ai = getActivityInfo(comp, flags, userId);
3576                    if (ai == null) {
3577                        continue;
3578                    }
3579                }
3580
3581                // Look for any generic query activities that are duplicates
3582                // of this specific one, and remove them from the results.
3583                if (DEBUG_INTENT_MATCHING) Log.v(TAG, "Specific #" + i + ": " + ai);
3584                N = results.size();
3585                int j;
3586                for (j=specificsPos; j<N; j++) {
3587                    ResolveInfo sri = results.get(j);
3588                    if ((sri.activityInfo.name.equals(comp.getClassName())
3589                            && sri.activityInfo.applicationInfo.packageName.equals(
3590                                    comp.getPackageName()))
3591                        || (action != null && sri.filter.matchAction(action))) {
3592                        results.remove(j);
3593                        if (DEBUG_INTENT_MATCHING) Log.v(
3594                            TAG, "Removing duplicate item from " + j
3595                            + " due to specific " + specificsPos);
3596                        if (ri == null) {
3597                            ri = sri;
3598                        }
3599                        j--;
3600                        N--;
3601                    }
3602                }
3603
3604                // Add this specific item to its proper place.
3605                if (ri == null) {
3606                    ri = new ResolveInfo();
3607                    ri.activityInfo = ai;
3608                }
3609                results.add(specificsPos, ri);
3610                ri.specificIndex = i;
3611                specificsPos++;
3612            }
3613        }
3614
3615        // Now we go through the remaining generic results and remove any
3616        // duplicate actions that are found here.
3617        N = results.size();
3618        for (int i=specificsPos; i<N-1; i++) {
3619            final ResolveInfo rii = results.get(i);
3620            if (rii.filter == null) {
3621                continue;
3622            }
3623
3624            // Iterate over all of the actions of this result's intent
3625            // filter...  typically this should be just one.
3626            final Iterator<String> it = rii.filter.actionsIterator();
3627            if (it == null) {
3628                continue;
3629            }
3630            while (it.hasNext()) {
3631                final String action = it.next();
3632                if (resultsAction != null && resultsAction.equals(action)) {
3633                    // If this action was explicitly requested, then don't
3634                    // remove things that have it.
3635                    continue;
3636                }
3637                for (int j=i+1; j<N; j++) {
3638                    final ResolveInfo rij = results.get(j);
3639                    if (rij.filter != null && rij.filter.hasAction(action)) {
3640                        results.remove(j);
3641                        if (DEBUG_INTENT_MATCHING) Log.v(
3642                            TAG, "Removing duplicate item from " + j
3643                            + " due to action " + action + " at " + i);
3644                        j--;
3645                        N--;
3646                    }
3647                }
3648            }
3649
3650            // If the caller didn't request filter information, drop it now
3651            // so we don't have to marshall/unmarshall it.
3652            if ((flags&PackageManager.GET_RESOLVED_FILTER) == 0) {
3653                rii.filter = null;
3654            }
3655        }
3656
3657        // Filter out the caller activity if so requested.
3658        if (caller != null) {
3659            N = results.size();
3660            for (int i=0; i<N; i++) {
3661                ActivityInfo ainfo = results.get(i).activityInfo;
3662                if (caller.getPackageName().equals(ainfo.applicationInfo.packageName)
3663                        && caller.getClassName().equals(ainfo.name)) {
3664                    results.remove(i);
3665                    break;
3666                }
3667            }
3668        }
3669
3670        // If the caller didn't request filter information,
3671        // drop them now so we don't have to
3672        // marshall/unmarshall it.
3673        if ((flags&PackageManager.GET_RESOLVED_FILTER) == 0) {
3674            N = results.size();
3675            for (int i=0; i<N; i++) {
3676                results.get(i).filter = null;
3677            }
3678        }
3679
3680        if (DEBUG_INTENT_MATCHING) Log.v(TAG, "Result: " + results);
3681        return results;
3682    }
3683
3684    @Override
3685    public List<ResolveInfo> queryIntentReceivers(Intent intent, String resolvedType, int flags,
3686            int userId) {
3687        if (!sUserManager.exists(userId)) return Collections.emptyList();
3688        ComponentName comp = intent.getComponent();
3689        if (comp == null) {
3690            if (intent.getSelector() != null) {
3691                intent = intent.getSelector();
3692                comp = intent.getComponent();
3693            }
3694        }
3695        if (comp != null) {
3696            List<ResolveInfo> list = new ArrayList<ResolveInfo>(1);
3697            ActivityInfo ai = getReceiverInfo(comp, flags, userId);
3698            if (ai != null) {
3699                ResolveInfo ri = new ResolveInfo();
3700                ri.activityInfo = ai;
3701                list.add(ri);
3702            }
3703            return list;
3704        }
3705
3706        // reader
3707        synchronized (mPackages) {
3708            String pkgName = intent.getPackage();
3709            if (pkgName == null) {
3710                return mReceivers.queryIntent(intent, resolvedType, flags, userId);
3711            }
3712            final PackageParser.Package pkg = mPackages.get(pkgName);
3713            if (pkg != null) {
3714                return mReceivers.queryIntentForPackage(intent, resolvedType, flags, pkg.receivers,
3715                        userId);
3716            }
3717            return null;
3718        }
3719    }
3720
3721    @Override
3722    public ResolveInfo resolveService(Intent intent, String resolvedType, int flags, int userId) {
3723        List<ResolveInfo> query = queryIntentServices(intent, resolvedType, flags, userId);
3724        if (!sUserManager.exists(userId)) return null;
3725        if (query != null) {
3726            if (query.size() >= 1) {
3727                // If there is more than one service with the same priority,
3728                // just arbitrarily pick the first one.
3729                return query.get(0);
3730            }
3731        }
3732        return null;
3733    }
3734
3735    @Override
3736    public List<ResolveInfo> queryIntentServices(Intent intent, String resolvedType, int flags,
3737            int userId) {
3738        if (!sUserManager.exists(userId)) return Collections.emptyList();
3739        ComponentName comp = intent.getComponent();
3740        if (comp == null) {
3741            if (intent.getSelector() != null) {
3742                intent = intent.getSelector();
3743                comp = intent.getComponent();
3744            }
3745        }
3746        if (comp != null) {
3747            final List<ResolveInfo> list = new ArrayList<ResolveInfo>(1);
3748            final ServiceInfo si = getServiceInfo(comp, flags, userId);
3749            if (si != null) {
3750                final ResolveInfo ri = new ResolveInfo();
3751                ri.serviceInfo = si;
3752                list.add(ri);
3753            }
3754            return list;
3755        }
3756
3757        // reader
3758        synchronized (mPackages) {
3759            String pkgName = intent.getPackage();
3760            if (pkgName == null) {
3761                return mServices.queryIntent(intent, resolvedType, flags, userId);
3762            }
3763            final PackageParser.Package pkg = mPackages.get(pkgName);
3764            if (pkg != null) {
3765                return mServices.queryIntentForPackage(intent, resolvedType, flags, pkg.services,
3766                        userId);
3767            }
3768            return null;
3769        }
3770    }
3771
3772    @Override
3773    public List<ResolveInfo> queryIntentContentProviders(
3774            Intent intent, String resolvedType, int flags, int userId) {
3775        if (!sUserManager.exists(userId)) return Collections.emptyList();
3776        ComponentName comp = intent.getComponent();
3777        if (comp == null) {
3778            if (intent.getSelector() != null) {
3779                intent = intent.getSelector();
3780                comp = intent.getComponent();
3781            }
3782        }
3783        if (comp != null) {
3784            final List<ResolveInfo> list = new ArrayList<ResolveInfo>(1);
3785            final ProviderInfo pi = getProviderInfo(comp, flags, userId);
3786            if (pi != null) {
3787                final ResolveInfo ri = new ResolveInfo();
3788                ri.providerInfo = pi;
3789                list.add(ri);
3790            }
3791            return list;
3792        }
3793
3794        // reader
3795        synchronized (mPackages) {
3796            String pkgName = intent.getPackage();
3797            if (pkgName == null) {
3798                return mProviders.queryIntent(intent, resolvedType, flags, userId);
3799            }
3800            final PackageParser.Package pkg = mPackages.get(pkgName);
3801            if (pkg != null) {
3802                return mProviders.queryIntentForPackage(
3803                        intent, resolvedType, flags, pkg.providers, userId);
3804            }
3805            return null;
3806        }
3807    }
3808
3809    @Override
3810    public ParceledListSlice<PackageInfo> getInstalledPackages(int flags, int userId) {
3811        final boolean listUninstalled = (flags & PackageManager.GET_UNINSTALLED_PACKAGES) != 0;
3812
3813        enforceCrossUserPermission(Binder.getCallingUid(), userId, true, false, "get installed packages");
3814
3815        // writer
3816        synchronized (mPackages) {
3817            ArrayList<PackageInfo> list;
3818            if (listUninstalled) {
3819                list = new ArrayList<PackageInfo>(mSettings.mPackages.size());
3820                for (PackageSetting ps : mSettings.mPackages.values()) {
3821                    PackageInfo pi;
3822                    if (ps.pkg != null) {
3823                        pi = generatePackageInfo(ps.pkg, flags, userId);
3824                    } else {
3825                        pi = generatePackageInfoFromSettingsLPw(ps.name, flags, userId);
3826                    }
3827                    if (pi != null) {
3828                        list.add(pi);
3829                    }
3830                }
3831            } else {
3832                list = new ArrayList<PackageInfo>(mPackages.size());
3833                for (PackageParser.Package p : mPackages.values()) {
3834                    PackageInfo pi = generatePackageInfo(p, flags, userId);
3835                    if (pi != null) {
3836                        list.add(pi);
3837                    }
3838                }
3839            }
3840
3841            return new ParceledListSlice<PackageInfo>(list);
3842        }
3843    }
3844
3845    private void addPackageHoldingPermissions(ArrayList<PackageInfo> list, PackageSetting ps,
3846            String[] permissions, boolean[] tmp, int flags, int userId) {
3847        int numMatch = 0;
3848        final GrantedPermissions gp = ps.sharedUser != null ? ps.sharedUser : ps;
3849        for (int i=0; i<permissions.length; i++) {
3850            if (gp.grantedPermissions.contains(permissions[i])) {
3851                tmp[i] = true;
3852                numMatch++;
3853            } else {
3854                tmp[i] = false;
3855            }
3856        }
3857        if (numMatch == 0) {
3858            return;
3859        }
3860        PackageInfo pi;
3861        if (ps.pkg != null) {
3862            pi = generatePackageInfo(ps.pkg, flags, userId);
3863        } else {
3864            pi = generatePackageInfoFromSettingsLPw(ps.name, flags, userId);
3865        }
3866        // The above might return null in cases of uninstalled apps or install-state
3867        // skew across users/profiles.
3868        if (pi != null) {
3869            if ((flags&PackageManager.GET_PERMISSIONS) == 0) {
3870                if (numMatch == permissions.length) {
3871                    pi.requestedPermissions = permissions;
3872                } else {
3873                    pi.requestedPermissions = new String[numMatch];
3874                    numMatch = 0;
3875                    for (int i=0; i<permissions.length; i++) {
3876                        if (tmp[i]) {
3877                            pi.requestedPermissions[numMatch] = permissions[i];
3878                            numMatch++;
3879                        }
3880                    }
3881                }
3882            }
3883            list.add(pi);
3884        }
3885    }
3886
3887    @Override
3888    public ParceledListSlice<PackageInfo> getPackagesHoldingPermissions(
3889            String[] permissions, int flags, int userId) {
3890        if (!sUserManager.exists(userId)) return null;
3891        final boolean listUninstalled = (flags & PackageManager.GET_UNINSTALLED_PACKAGES) != 0;
3892
3893        // writer
3894        synchronized (mPackages) {
3895            ArrayList<PackageInfo> list = new ArrayList<PackageInfo>();
3896            boolean[] tmpBools = new boolean[permissions.length];
3897            if (listUninstalled) {
3898                for (PackageSetting ps : mSettings.mPackages.values()) {
3899                    addPackageHoldingPermissions(list, ps, permissions, tmpBools, flags, userId);
3900                }
3901            } else {
3902                for (PackageParser.Package pkg : mPackages.values()) {
3903                    PackageSetting ps = (PackageSetting)pkg.mExtras;
3904                    if (ps != null) {
3905                        addPackageHoldingPermissions(list, ps, permissions, tmpBools, flags,
3906                                userId);
3907                    }
3908                }
3909            }
3910
3911            return new ParceledListSlice<PackageInfo>(list);
3912        }
3913    }
3914
3915    @Override
3916    public ParceledListSlice<ApplicationInfo> getInstalledApplications(int flags, int userId) {
3917        if (!sUserManager.exists(userId)) return null;
3918        final boolean listUninstalled = (flags & PackageManager.GET_UNINSTALLED_PACKAGES) != 0;
3919
3920        // writer
3921        synchronized (mPackages) {
3922            ArrayList<ApplicationInfo> list;
3923            if (listUninstalled) {
3924                list = new ArrayList<ApplicationInfo>(mSettings.mPackages.size());
3925                for (PackageSetting ps : mSettings.mPackages.values()) {
3926                    ApplicationInfo ai;
3927                    if (ps.pkg != null) {
3928                        ai = PackageParser.generateApplicationInfo(ps.pkg, flags,
3929                                ps.readUserState(userId), userId);
3930                    } else {
3931                        ai = generateApplicationInfoFromSettingsLPw(ps.name, flags, userId);
3932                    }
3933                    if (ai != null) {
3934                        list.add(ai);
3935                    }
3936                }
3937            } else {
3938                list = new ArrayList<ApplicationInfo>(mPackages.size());
3939                for (PackageParser.Package p : mPackages.values()) {
3940                    if (p.mExtras != null) {
3941                        ApplicationInfo ai = PackageParser.generateApplicationInfo(p, flags,
3942                                ((PackageSetting)p.mExtras).readUserState(userId), userId);
3943                        if (ai != null) {
3944                            list.add(ai);
3945                        }
3946                    }
3947                }
3948            }
3949
3950            return new ParceledListSlice<ApplicationInfo>(list);
3951        }
3952    }
3953
3954    public List<ApplicationInfo> getPersistentApplications(int flags) {
3955        final ArrayList<ApplicationInfo> finalList = new ArrayList<ApplicationInfo>();
3956
3957        // reader
3958        synchronized (mPackages) {
3959            final Iterator<PackageParser.Package> i = mPackages.values().iterator();
3960            final int userId = UserHandle.getCallingUserId();
3961            while (i.hasNext()) {
3962                final PackageParser.Package p = i.next();
3963                if (p.applicationInfo != null
3964                        && (p.applicationInfo.flags&ApplicationInfo.FLAG_PERSISTENT) != 0
3965                        && (!mSafeMode || isSystemApp(p))) {
3966                    PackageSetting ps = mSettings.mPackages.get(p.packageName);
3967                    if (ps != null) {
3968                        ApplicationInfo ai = PackageParser.generateApplicationInfo(p, flags,
3969                                ps.readUserState(userId), userId);
3970                        if (ai != null) {
3971                            finalList.add(ai);
3972                        }
3973                    }
3974                }
3975            }
3976        }
3977
3978        return finalList;
3979    }
3980
3981    @Override
3982    public ProviderInfo resolveContentProvider(String name, int flags, int userId) {
3983        if (!sUserManager.exists(userId)) return null;
3984        // reader
3985        synchronized (mPackages) {
3986            final PackageParser.Provider provider = mProvidersByAuthority.get(name);
3987            PackageSetting ps = provider != null
3988                    ? mSettings.mPackages.get(provider.owner.packageName)
3989                    : null;
3990            return ps != null
3991                    && mSettings.isEnabledLPr(provider.info, flags, userId)
3992                    && (!mSafeMode || (provider.info.applicationInfo.flags
3993                            &ApplicationInfo.FLAG_SYSTEM) != 0)
3994                    ? PackageParser.generateProviderInfo(provider, flags,
3995                            ps.readUserState(userId), userId)
3996                    : null;
3997        }
3998    }
3999
4000    /**
4001     * @deprecated
4002     */
4003    @Deprecated
4004    public void querySyncProviders(List<String> outNames, List<ProviderInfo> outInfo) {
4005        // reader
4006        synchronized (mPackages) {
4007            final Iterator<Map.Entry<String, PackageParser.Provider>> i = mProvidersByAuthority
4008                    .entrySet().iterator();
4009            final int userId = UserHandle.getCallingUserId();
4010            while (i.hasNext()) {
4011                Map.Entry<String, PackageParser.Provider> entry = i.next();
4012                PackageParser.Provider p = entry.getValue();
4013                PackageSetting ps = mSettings.mPackages.get(p.owner.packageName);
4014
4015                if (ps != null && p.syncable
4016                        && (!mSafeMode || (p.info.applicationInfo.flags
4017                                &ApplicationInfo.FLAG_SYSTEM) != 0)) {
4018                    ProviderInfo info = PackageParser.generateProviderInfo(p, 0,
4019                            ps.readUserState(userId), userId);
4020                    if (info != null) {
4021                        outNames.add(entry.getKey());
4022                        outInfo.add(info);
4023                    }
4024                }
4025            }
4026        }
4027    }
4028
4029    @Override
4030    public List<ProviderInfo> queryContentProviders(String processName,
4031            int uid, int flags) {
4032        ArrayList<ProviderInfo> finalList = null;
4033        // reader
4034        synchronized (mPackages) {
4035            final Iterator<PackageParser.Provider> i = mProviders.mProviders.values().iterator();
4036            final int userId = processName != null ?
4037                    UserHandle.getUserId(uid) : UserHandle.getCallingUserId();
4038            while (i.hasNext()) {
4039                final PackageParser.Provider p = i.next();
4040                PackageSetting ps = mSettings.mPackages.get(p.owner.packageName);
4041                if (ps != null && p.info.authority != null
4042                        && (processName == null
4043                                || (p.info.processName.equals(processName)
4044                                        && UserHandle.isSameApp(p.info.applicationInfo.uid, uid)))
4045                        && mSettings.isEnabledLPr(p.info, flags, userId)
4046                        && (!mSafeMode
4047                                || (p.info.applicationInfo.flags & ApplicationInfo.FLAG_SYSTEM) != 0)) {
4048                    if (finalList == null) {
4049                        finalList = new ArrayList<ProviderInfo>(3);
4050                    }
4051                    ProviderInfo info = PackageParser.generateProviderInfo(p, flags,
4052                            ps.readUserState(userId), userId);
4053                    if (info != null) {
4054                        finalList.add(info);
4055                    }
4056                }
4057            }
4058        }
4059
4060        if (finalList != null) {
4061            Collections.sort(finalList, mProviderInitOrderSorter);
4062        }
4063
4064        return finalList;
4065    }
4066
4067    @Override
4068    public InstrumentationInfo getInstrumentationInfo(ComponentName name,
4069            int flags) {
4070        // reader
4071        synchronized (mPackages) {
4072            final PackageParser.Instrumentation i = mInstrumentation.get(name);
4073            return PackageParser.generateInstrumentationInfo(i, flags);
4074        }
4075    }
4076
4077    @Override
4078    public List<InstrumentationInfo> queryInstrumentation(String targetPackage,
4079            int flags) {
4080        ArrayList<InstrumentationInfo> finalList =
4081            new ArrayList<InstrumentationInfo>();
4082
4083        // reader
4084        synchronized (mPackages) {
4085            final Iterator<PackageParser.Instrumentation> i = mInstrumentation.values().iterator();
4086            while (i.hasNext()) {
4087                final PackageParser.Instrumentation p = i.next();
4088                if (targetPackage == null
4089                        || targetPackage.equals(p.info.targetPackage)) {
4090                    InstrumentationInfo ii = PackageParser.generateInstrumentationInfo(p,
4091                            flags);
4092                    if (ii != null) {
4093                        finalList.add(ii);
4094                    }
4095                }
4096            }
4097        }
4098
4099        return finalList;
4100    }
4101
4102    private void createIdmapsForPackageLI(PackageParser.Package pkg) {
4103        ArrayMap<String, PackageParser.Package> overlays = mOverlays.get(pkg.packageName);
4104        if (overlays == null) {
4105            Slog.w(TAG, "Unable to create idmap for " + pkg.packageName + ": no overlay packages");
4106            return;
4107        }
4108        for (PackageParser.Package opkg : overlays.values()) {
4109            // Not much to do if idmap fails: we already logged the error
4110            // and we certainly don't want to abort installation of pkg simply
4111            // because an overlay didn't fit properly. For these reasons,
4112            // ignore the return value of createIdmapForPackagePairLI.
4113            createIdmapForPackagePairLI(pkg, opkg);
4114        }
4115    }
4116
4117    private boolean createIdmapForPackagePairLI(PackageParser.Package pkg,
4118            PackageParser.Package opkg) {
4119        if (!opkg.mTrustedOverlay) {
4120            Slog.w(TAG, "Skipping target and overlay pair " + pkg.baseCodePath + " and " +
4121                    opkg.baseCodePath + ": overlay not trusted");
4122            return false;
4123        }
4124        ArrayMap<String, PackageParser.Package> overlaySet = mOverlays.get(pkg.packageName);
4125        if (overlaySet == null) {
4126            Slog.e(TAG, "was about to create idmap for " + pkg.baseCodePath + " and " +
4127                    opkg.baseCodePath + " but target package has no known overlays");
4128            return false;
4129        }
4130        final int sharedGid = UserHandle.getSharedAppGid(pkg.applicationInfo.uid);
4131        // TODO: generate idmap for split APKs
4132        if (mInstaller.idmap(pkg.baseCodePath, opkg.baseCodePath, sharedGid) != 0) {
4133            Slog.e(TAG, "Failed to generate idmap for " + pkg.baseCodePath + " and "
4134                    + opkg.baseCodePath);
4135            return false;
4136        }
4137        PackageParser.Package[] overlayArray =
4138            overlaySet.values().toArray(new PackageParser.Package[0]);
4139        Comparator<PackageParser.Package> cmp = new Comparator<PackageParser.Package>() {
4140            public int compare(PackageParser.Package p1, PackageParser.Package p2) {
4141                return p1.mOverlayPriority - p2.mOverlayPriority;
4142            }
4143        };
4144        Arrays.sort(overlayArray, cmp);
4145
4146        pkg.applicationInfo.resourceDirs = new String[overlayArray.length];
4147        int i = 0;
4148        for (PackageParser.Package p : overlayArray) {
4149            pkg.applicationInfo.resourceDirs[i++] = p.baseCodePath;
4150        }
4151        return true;
4152    }
4153
4154    private void scanDirLI(File dir, int parseFlags, int scanFlags, long currentTime) {
4155        final File[] files = dir.listFiles();
4156        if (ArrayUtils.isEmpty(files)) {
4157            Log.d(TAG, "No files in app dir " + dir);
4158            return;
4159        }
4160
4161        if (DEBUG_PACKAGE_SCANNING) {
4162            Log.d(TAG, "Scanning app dir " + dir + " scanFlags=" + scanFlags
4163                    + " flags=0x" + Integer.toHexString(parseFlags));
4164        }
4165
4166        for (File file : files) {
4167            final boolean isPackage = (isApkFile(file) || file.isDirectory())
4168                    && !PackageInstallerService.isStageName(file.getName());
4169            if (!isPackage) {
4170                // Ignore entries which are not packages
4171                continue;
4172            }
4173            try {
4174                scanPackageLI(file, parseFlags | PackageParser.PARSE_MUST_BE_APK,
4175                        scanFlags, currentTime, null);
4176            } catch (PackageManagerException e) {
4177                Slog.w(TAG, "Failed to parse " + file + ": " + e.getMessage());
4178
4179                // Delete invalid userdata apps
4180                if ((parseFlags & PackageParser.PARSE_IS_SYSTEM) == 0 &&
4181                        e.error == PackageManager.INSTALL_FAILED_INVALID_APK) {
4182                    logCriticalInfo(Log.WARN, "Deleting invalid package at " + file);
4183                    if (file.isDirectory()) {
4184                        mInstaller.rmPackageDir(file.getAbsolutePath());
4185                    } else {
4186                        file.delete();
4187                    }
4188                }
4189            }
4190        }
4191    }
4192
4193    private static File getSettingsProblemFile() {
4194        File dataDir = Environment.getDataDirectory();
4195        File systemDir = new File(dataDir, "system");
4196        File fname = new File(systemDir, "uiderrors.txt");
4197        return fname;
4198    }
4199
4200    static void reportSettingsProblem(int priority, String msg) {
4201        logCriticalInfo(priority, msg);
4202    }
4203
4204    static void logCriticalInfo(int priority, String msg) {
4205        Slog.println(priority, TAG, msg);
4206        EventLogTags.writePmCriticalInfo(msg);
4207        try {
4208            File fname = getSettingsProblemFile();
4209            FileOutputStream out = new FileOutputStream(fname, true);
4210            PrintWriter pw = new FastPrintWriter(out);
4211            SimpleDateFormat formatter = new SimpleDateFormat();
4212            String dateString = formatter.format(new Date(System.currentTimeMillis()));
4213            pw.println(dateString + ": " + msg);
4214            pw.close();
4215            FileUtils.setPermissions(
4216                    fname.toString(),
4217                    FileUtils.S_IRWXU|FileUtils.S_IRWXG|FileUtils.S_IROTH,
4218                    -1, -1);
4219        } catch (java.io.IOException e) {
4220        }
4221    }
4222
4223    private void collectCertificatesLI(PackageParser pp, PackageSetting ps,
4224            PackageParser.Package pkg, File srcFile, int parseFlags)
4225            throws PackageManagerException {
4226        if (ps != null
4227                && ps.codePath.equals(srcFile)
4228                && ps.timeStamp == srcFile.lastModified()
4229                && !isCompatSignatureUpdateNeeded(pkg)
4230                && !isRecoverSignatureUpdateNeeded(pkg)) {
4231            long mSigningKeySetId = ps.keySetData.getProperSigningKeySet();
4232            if (ps.signatures.mSignatures != null
4233                    && ps.signatures.mSignatures.length != 0
4234                    && mSigningKeySetId != PackageKeySetData.KEYSET_UNASSIGNED) {
4235                // Optimization: reuse the existing cached certificates
4236                // if the package appears to be unchanged.
4237                pkg.mSignatures = ps.signatures.mSignatures;
4238                KeySetManagerService ksms = mSettings.mKeySetManagerService;
4239                synchronized (mPackages) {
4240                    pkg.mSigningKeys = ksms.getPublicKeysFromKeySetLPr(mSigningKeySetId);
4241                }
4242                return;
4243            }
4244
4245            Slog.w(TAG, "PackageSetting for " + ps.name
4246                    + " is missing signatures.  Collecting certs again to recover them.");
4247        } else {
4248            Log.i(TAG, srcFile.toString() + " changed; collecting certs");
4249        }
4250
4251        try {
4252            pp.collectCertificates(pkg, parseFlags);
4253            pp.collectManifestDigest(pkg);
4254        } catch (PackageParserException e) {
4255            throw PackageManagerException.from(e);
4256        }
4257    }
4258
4259    /*
4260     *  Scan a package and return the newly parsed package.
4261     *  Returns null in case of errors and the error code is stored in mLastScanError
4262     */
4263    private PackageParser.Package scanPackageLI(File scanFile, int parseFlags, int scanFlags,
4264            long currentTime, UserHandle user) throws PackageManagerException {
4265        if (DEBUG_INSTALL) Slog.d(TAG, "Parsing: " + scanFile);
4266        parseFlags |= mDefParseFlags;
4267        PackageParser pp = new PackageParser();
4268        pp.setSeparateProcesses(mSeparateProcesses);
4269        pp.setOnlyCoreApps(mOnlyCore);
4270        pp.setDisplayMetrics(mMetrics);
4271
4272        if ((scanFlags & SCAN_TRUSTED_OVERLAY) != 0) {
4273            parseFlags |= PackageParser.PARSE_TRUSTED_OVERLAY;
4274        }
4275
4276        final PackageParser.Package pkg;
4277        try {
4278            pkg = pp.parsePackage(scanFile, parseFlags);
4279        } catch (PackageParserException e) {
4280            throw PackageManagerException.from(e);
4281        }
4282
4283        PackageSetting ps = null;
4284        PackageSetting updatedPkg;
4285        // reader
4286        synchronized (mPackages) {
4287            // Look to see if we already know about this package.
4288            String oldName = mSettings.mRenamedPackages.get(pkg.packageName);
4289            if (pkg.mOriginalPackages != null && pkg.mOriginalPackages.contains(oldName)) {
4290                // This package has been renamed to its original name.  Let's
4291                // use that.
4292                ps = mSettings.peekPackageLPr(oldName);
4293            }
4294            // If there was no original package, see one for the real package name.
4295            if (ps == null) {
4296                ps = mSettings.peekPackageLPr(pkg.packageName);
4297            }
4298            // Check to see if this package could be hiding/updating a system
4299            // package.  Must look for it either under the original or real
4300            // package name depending on our state.
4301            updatedPkg = mSettings.getDisabledSystemPkgLPr(ps != null ? ps.name : pkg.packageName);
4302            if (DEBUG_INSTALL && updatedPkg != null) Slog.d(TAG, "updatedPkg = " + updatedPkg);
4303        }
4304        boolean updatedPkgBetter = false;
4305        // First check if this is a system package that may involve an update
4306        if (updatedPkg != null && (parseFlags&PackageParser.PARSE_IS_SYSTEM) != 0) {
4307            // If new package is not located in "/system/priv-app" (e.g. due to an OTA),
4308            // it needs to drop FLAG_PRIVILEGED.
4309            if (locationIsPrivileged(scanFile)) {
4310                updatedPkg.pkgPrivateFlags |= ApplicationInfo.PRIVATE_FLAG_PRIVILEGED;
4311            } else {
4312                updatedPkg.pkgPrivateFlags &= ~ApplicationInfo.PRIVATE_FLAG_PRIVILEGED;
4313            }
4314
4315            if (ps != null && !ps.codePath.equals(scanFile)) {
4316                // The path has changed from what was last scanned...  check the
4317                // version of the new path against what we have stored to determine
4318                // what to do.
4319                if (DEBUG_INSTALL) Slog.d(TAG, "Path changing from " + ps.codePath);
4320                if (pkg.mVersionCode <= ps.versionCode) {
4321                    // The system package has been updated and the code path does not match
4322                    // Ignore entry. Skip it.
4323                    Slog.i(TAG, "Package " + ps.name + " at " + scanFile
4324                            + " ignored: updated version " + ps.versionCode
4325                            + " better than this " + pkg.mVersionCode);
4326                    if (!updatedPkg.codePath.equals(scanFile)) {
4327                        Slog.w(PackageManagerService.TAG, "Code path for hidden system pkg : "
4328                                + ps.name + " changing from " + updatedPkg.codePathString
4329                                + " to " + scanFile);
4330                        updatedPkg.codePath = scanFile;
4331                        updatedPkg.codePathString = scanFile.toString();
4332                        updatedPkg.resourcePath = scanFile;
4333                        updatedPkg.resourcePathString = scanFile.toString();
4334                    }
4335                    updatedPkg.pkg = pkg;
4336                    throw new PackageManagerException(INSTALL_FAILED_DUPLICATE_PACKAGE, null);
4337                } else {
4338                    // The current app on the system partition is better than
4339                    // what we have updated to on the data partition; switch
4340                    // back to the system partition version.
4341                    // At this point, its safely assumed that package installation for
4342                    // apps in system partition will go through. If not there won't be a working
4343                    // version of the app
4344                    // writer
4345                    synchronized (mPackages) {
4346                        // Just remove the loaded entries from package lists.
4347                        mPackages.remove(ps.name);
4348                    }
4349
4350                    logCriticalInfo(Log.WARN, "Package " + ps.name + " at " + scanFile
4351                            + " reverting from " + ps.codePathString
4352                            + ": new version " + pkg.mVersionCode
4353                            + " better than installed " + ps.versionCode);
4354
4355                    InstallArgs args = createInstallArgsForExisting(packageFlagsToInstallFlags(ps),
4356                            ps.codePathString, ps.resourcePathString, ps.legacyNativeLibraryPathString,
4357                            getAppDexInstructionSets(ps));
4358                    synchronized (mInstallLock) {
4359                        args.cleanUpResourcesLI();
4360                    }
4361                    synchronized (mPackages) {
4362                        mSettings.enableSystemPackageLPw(ps.name);
4363                    }
4364                    updatedPkgBetter = true;
4365                }
4366            }
4367        }
4368
4369        if (updatedPkg != null) {
4370            // An updated system app will not have the PARSE_IS_SYSTEM flag set
4371            // initially
4372            parseFlags |= PackageParser.PARSE_IS_SYSTEM;
4373
4374            // An updated privileged app will not have the PARSE_IS_PRIVILEGED
4375            // flag set initially
4376            if ((updatedPkg.pkgPrivateFlags & ApplicationInfo.PRIVATE_FLAG_PRIVILEGED) != 0) {
4377                parseFlags |= PackageParser.PARSE_IS_PRIVILEGED;
4378            }
4379        }
4380
4381        // Verify certificates against what was last scanned
4382        collectCertificatesLI(pp, ps, pkg, scanFile, parseFlags);
4383
4384        /*
4385         * A new system app appeared, but we already had a non-system one of the
4386         * same name installed earlier.
4387         */
4388        boolean shouldHideSystemApp = false;
4389        if (updatedPkg == null && ps != null
4390                && (parseFlags & PackageParser.PARSE_IS_SYSTEM_DIR) != 0 && !isSystemApp(ps)) {
4391            /*
4392             * Check to make sure the signatures match first. If they don't,
4393             * wipe the installed application and its data.
4394             */
4395            if (compareSignatures(ps.signatures.mSignatures, pkg.mSignatures)
4396                    != PackageManager.SIGNATURE_MATCH) {
4397                logCriticalInfo(Log.WARN, "Package " + ps.name + " appeared on system, but"
4398                        + " signatures don't match existing userdata copy; removing");
4399                deletePackageLI(pkg.packageName, null, true, null, null, 0, null, false);
4400                ps = null;
4401            } else {
4402                /*
4403                 * If the newly-added system app is an older version than the
4404                 * already installed version, hide it. It will be scanned later
4405                 * and re-added like an update.
4406                 */
4407                if (pkg.mVersionCode <= ps.versionCode) {
4408                    shouldHideSystemApp = true;
4409                    logCriticalInfo(Log.INFO, "Package " + ps.name + " appeared at " + scanFile
4410                            + " but new version " + pkg.mVersionCode + " better than installed "
4411                            + ps.versionCode + "; hiding system");
4412                } else {
4413                    /*
4414                     * The newly found system app is a newer version that the
4415                     * one previously installed. Simply remove the
4416                     * already-installed application and replace it with our own
4417                     * while keeping the application data.
4418                     */
4419                    logCriticalInfo(Log.WARN, "Package " + ps.name + " at " + scanFile
4420                            + " reverting from " + ps.codePathString + ": new version "
4421                            + pkg.mVersionCode + " better than installed " + ps.versionCode);
4422                    InstallArgs args = createInstallArgsForExisting(packageFlagsToInstallFlags(ps),
4423                            ps.codePathString, ps.resourcePathString, ps.legacyNativeLibraryPathString,
4424                            getAppDexInstructionSets(ps));
4425                    synchronized (mInstallLock) {
4426                        args.cleanUpResourcesLI();
4427                    }
4428                }
4429            }
4430        }
4431
4432        // The apk is forward locked (not public) if its code and resources
4433        // are kept in different files. (except for app in either system or
4434        // vendor path).
4435        // TODO grab this value from PackageSettings
4436        if ((parseFlags & PackageParser.PARSE_IS_SYSTEM_DIR) == 0) {
4437            if (ps != null && !ps.codePath.equals(ps.resourcePath)) {
4438                parseFlags |= PackageParser.PARSE_FORWARD_LOCK;
4439            }
4440        }
4441
4442        // TODO: extend to support forward-locked splits
4443        String resourcePath = null;
4444        String baseResourcePath = null;
4445        if ((parseFlags & PackageParser.PARSE_FORWARD_LOCK) != 0 && !updatedPkgBetter) {
4446            if (ps != null && ps.resourcePathString != null) {
4447                resourcePath = ps.resourcePathString;
4448                baseResourcePath = ps.resourcePathString;
4449            } else {
4450                // Should not happen at all. Just log an error.
4451                Slog.e(TAG, "Resource path not set for pkg : " + pkg.packageName);
4452            }
4453        } else {
4454            resourcePath = pkg.codePath;
4455            baseResourcePath = pkg.baseCodePath;
4456        }
4457
4458        // Set application objects path explicitly.
4459        pkg.applicationInfo.setCodePath(pkg.codePath);
4460        pkg.applicationInfo.setBaseCodePath(pkg.baseCodePath);
4461        pkg.applicationInfo.setSplitCodePaths(pkg.splitCodePaths);
4462        pkg.applicationInfo.setResourcePath(resourcePath);
4463        pkg.applicationInfo.setBaseResourcePath(baseResourcePath);
4464        pkg.applicationInfo.setSplitResourcePaths(pkg.splitCodePaths);
4465
4466        // Note that we invoke the following method only if we are about to unpack an application
4467        PackageParser.Package scannedPkg = scanPackageLI(pkg, parseFlags, scanFlags
4468                | SCAN_UPDATE_SIGNATURE, currentTime, user);
4469
4470        /*
4471         * If the system app should be overridden by a previously installed
4472         * data, hide the system app now and let the /data/app scan pick it up
4473         * again.
4474         */
4475        if (shouldHideSystemApp) {
4476            synchronized (mPackages) {
4477                /*
4478                 * We have to grant systems permissions before we hide, because
4479                 * grantPermissions will assume the package update is trying to
4480                 * expand its permissions.
4481                 */
4482                grantPermissionsLPw(pkg, true, pkg.packageName);
4483                mSettings.disableSystemPackageLPw(pkg.packageName);
4484            }
4485        }
4486
4487        return scannedPkg;
4488    }
4489
4490    private static String fixProcessName(String defProcessName,
4491            String processName, int uid) {
4492        if (processName == null) {
4493            return defProcessName;
4494        }
4495        return processName;
4496    }
4497
4498    private void verifySignaturesLP(PackageSetting pkgSetting, PackageParser.Package pkg)
4499            throws PackageManagerException {
4500        if (pkgSetting.signatures.mSignatures != null) {
4501            // Already existing package. Make sure signatures match
4502            boolean match = compareSignatures(pkgSetting.signatures.mSignatures, pkg.mSignatures)
4503                    == PackageManager.SIGNATURE_MATCH;
4504            if (!match) {
4505                match = compareSignaturesCompat(pkgSetting.signatures, pkg)
4506                        == PackageManager.SIGNATURE_MATCH;
4507            }
4508            if (!match) {
4509                match = compareSignaturesRecover(pkgSetting.signatures, pkg)
4510                        == PackageManager.SIGNATURE_MATCH;
4511            }
4512            if (!match) {
4513                throw new PackageManagerException(INSTALL_FAILED_UPDATE_INCOMPATIBLE, "Package "
4514                        + pkg.packageName + " signatures do not match the "
4515                        + "previously installed version; ignoring!");
4516            }
4517        }
4518
4519        // Check for shared user signatures
4520        if (pkgSetting.sharedUser != null && pkgSetting.sharedUser.signatures.mSignatures != null) {
4521            // Already existing package. Make sure signatures match
4522            boolean match = compareSignatures(pkgSetting.sharedUser.signatures.mSignatures,
4523                    pkg.mSignatures) == PackageManager.SIGNATURE_MATCH;
4524            if (!match) {
4525                match = compareSignaturesCompat(pkgSetting.sharedUser.signatures, pkg)
4526                        == PackageManager.SIGNATURE_MATCH;
4527            }
4528            if (!match) {
4529                match = compareSignaturesRecover(pkgSetting.sharedUser.signatures, pkg)
4530                        == PackageManager.SIGNATURE_MATCH;
4531            }
4532            if (!match) {
4533                throw new PackageManagerException(INSTALL_FAILED_SHARED_USER_INCOMPATIBLE,
4534                        "Package " + pkg.packageName
4535                        + " has no signatures that match those in shared user "
4536                        + pkgSetting.sharedUser.name + "; ignoring!");
4537            }
4538        }
4539    }
4540
4541    /**
4542     * Enforces that only the system UID or root's UID can call a method exposed
4543     * via Binder.
4544     *
4545     * @param message used as message if SecurityException is thrown
4546     * @throws SecurityException if the caller is not system or root
4547     */
4548    private static final void enforceSystemOrRoot(String message) {
4549        final int uid = Binder.getCallingUid();
4550        if (uid != Process.SYSTEM_UID && uid != 0) {
4551            throw new SecurityException(message);
4552        }
4553    }
4554
4555    @Override
4556    public void performBootDexOpt() {
4557        enforceSystemOrRoot("Only the system can request dexopt be performed");
4558
4559        // Before everything else, see whether we need to fstrim.
4560        try {
4561            IMountService ms = PackageHelper.getMountService();
4562            if (ms != null) {
4563                final boolean isUpgrade = isUpgrade();
4564                boolean doTrim = isUpgrade;
4565                if (doTrim) {
4566                    Slog.w(TAG, "Running disk maintenance immediately due to system update");
4567                } else {
4568                    final long interval = android.provider.Settings.Global.getLong(
4569                            mContext.getContentResolver(),
4570                            android.provider.Settings.Global.FSTRIM_MANDATORY_INTERVAL,
4571                            DEFAULT_MANDATORY_FSTRIM_INTERVAL);
4572                    if (interval > 0) {
4573                        final long timeSinceLast = System.currentTimeMillis() - ms.lastMaintenance();
4574                        if (timeSinceLast > interval) {
4575                            doTrim = true;
4576                            Slog.w(TAG, "No disk maintenance in " + timeSinceLast
4577                                    + "; running immediately");
4578                        }
4579                    }
4580                }
4581                if (doTrim) {
4582                    if (!isFirstBoot()) {
4583                        try {
4584                            ActivityManagerNative.getDefault().showBootMessage(
4585                                    mContext.getResources().getString(
4586                                            R.string.android_upgrading_fstrim), true);
4587                        } catch (RemoteException e) {
4588                        }
4589                    }
4590                    ms.runMaintenance();
4591                }
4592            } else {
4593                Slog.e(TAG, "Mount service unavailable!");
4594            }
4595        } catch (RemoteException e) {
4596            // Can't happen; MountService is local
4597        }
4598
4599        final ArraySet<PackageParser.Package> pkgs;
4600        synchronized (mPackages) {
4601            pkgs = mPackageDexOptimizer.clearDeferredDexOptPackages();
4602        }
4603
4604        if (pkgs != null) {
4605            // Sort apps by importance for dexopt ordering. Important apps are given more priority
4606            // in case the device runs out of space.
4607            ArrayList<PackageParser.Package> sortedPkgs = new ArrayList<PackageParser.Package>();
4608            // Give priority to core apps.
4609            for (Iterator<PackageParser.Package> it = pkgs.iterator(); it.hasNext();) {
4610                PackageParser.Package pkg = it.next();
4611                if (pkg.coreApp) {
4612                    if (DEBUG_DEXOPT) {
4613                        Log.i(TAG, "Adding core app " + sortedPkgs.size() + ": " + pkg.packageName);
4614                    }
4615                    sortedPkgs.add(pkg);
4616                    it.remove();
4617                }
4618            }
4619            // Give priority to system apps that listen for pre boot complete.
4620            Intent intent = new Intent(Intent.ACTION_PRE_BOOT_COMPLETED);
4621            ArraySet<String> pkgNames = getPackageNamesForIntent(intent);
4622            for (Iterator<PackageParser.Package> it = pkgs.iterator(); it.hasNext();) {
4623                PackageParser.Package pkg = it.next();
4624                if (pkgNames.contains(pkg.packageName)) {
4625                    if (DEBUG_DEXOPT) {
4626                        Log.i(TAG, "Adding pre boot system app " + sortedPkgs.size() + ": " + pkg.packageName);
4627                    }
4628                    sortedPkgs.add(pkg);
4629                    it.remove();
4630                }
4631            }
4632            // Give priority to system apps.
4633            for (Iterator<PackageParser.Package> it = pkgs.iterator(); it.hasNext();) {
4634                PackageParser.Package pkg = it.next();
4635                if (isSystemApp(pkg) && !pkg.isUpdatedSystemApp()) {
4636                    if (DEBUG_DEXOPT) {
4637                        Log.i(TAG, "Adding system app " + sortedPkgs.size() + ": " + pkg.packageName);
4638                    }
4639                    sortedPkgs.add(pkg);
4640                    it.remove();
4641                }
4642            }
4643            // Give priority to updated system apps.
4644            for (Iterator<PackageParser.Package> it = pkgs.iterator(); it.hasNext();) {
4645                PackageParser.Package pkg = it.next();
4646                if (pkg.isUpdatedSystemApp()) {
4647                    if (DEBUG_DEXOPT) {
4648                        Log.i(TAG, "Adding updated system app " + sortedPkgs.size() + ": " + pkg.packageName);
4649                    }
4650                    sortedPkgs.add(pkg);
4651                    it.remove();
4652                }
4653            }
4654            // Give priority to apps that listen for boot complete.
4655            intent = new Intent(Intent.ACTION_BOOT_COMPLETED);
4656            pkgNames = getPackageNamesForIntent(intent);
4657            for (Iterator<PackageParser.Package> it = pkgs.iterator(); it.hasNext();) {
4658                PackageParser.Package pkg = it.next();
4659                if (pkgNames.contains(pkg.packageName)) {
4660                    if (DEBUG_DEXOPT) {
4661                        Log.i(TAG, "Adding boot app " + sortedPkgs.size() + ": " + pkg.packageName);
4662                    }
4663                    sortedPkgs.add(pkg);
4664                    it.remove();
4665                }
4666            }
4667            // Filter out packages that aren't recently used.
4668            filterRecentlyUsedApps(pkgs);
4669            // Add all remaining apps.
4670            for (PackageParser.Package pkg : pkgs) {
4671                if (DEBUG_DEXOPT) {
4672                    Log.i(TAG, "Adding app " + sortedPkgs.size() + ": " + pkg.packageName);
4673                }
4674                sortedPkgs.add(pkg);
4675            }
4676
4677            // If we want to be lazy, filter everything that wasn't recently used.
4678            if (mLazyDexOpt) {
4679                filterRecentlyUsedApps(sortedPkgs);
4680            }
4681
4682            int i = 0;
4683            int total = sortedPkgs.size();
4684            File dataDir = Environment.getDataDirectory();
4685            long lowThreshold = StorageManager.from(mContext).getStorageLowBytes(dataDir);
4686            if (lowThreshold == 0) {
4687                throw new IllegalStateException("Invalid low memory threshold");
4688            }
4689            for (PackageParser.Package pkg : sortedPkgs) {
4690                long usableSpace = dataDir.getUsableSpace();
4691                if (usableSpace < lowThreshold) {
4692                    Log.w(TAG, "Not running dexopt on remaining apps due to low memory: " + usableSpace);
4693                    break;
4694                }
4695                performBootDexOpt(pkg, ++i, total);
4696            }
4697        }
4698    }
4699
4700    private void filterRecentlyUsedApps(Collection<PackageParser.Package> pkgs) {
4701        // Filter out packages that aren't recently used.
4702        //
4703        // The exception is first boot of a non-eng device (aka !mLazyDexOpt), which
4704        // should do a full dexopt.
4705        if (mLazyDexOpt || (!isFirstBoot() && mPackageUsage.isHistoricalPackageUsageAvailable())) {
4706            int total = pkgs.size();
4707            int skipped = 0;
4708            long now = System.currentTimeMillis();
4709            for (Iterator<PackageParser.Package> i = pkgs.iterator(); i.hasNext();) {
4710                PackageParser.Package pkg = i.next();
4711                long then = pkg.mLastPackageUsageTimeInMills;
4712                if (then + mDexOptLRUThresholdInMills < now) {
4713                    if (DEBUG_DEXOPT) {
4714                        Log.i(TAG, "Skipping dexopt of " + pkg.packageName + " last resumed: " +
4715                              ((then == 0) ? "never" : new Date(then)));
4716                    }
4717                    i.remove();
4718                    skipped++;
4719                }
4720            }
4721            if (DEBUG_DEXOPT) {
4722                Log.i(TAG, "Skipped optimizing " + skipped + " of " + total);
4723            }
4724        }
4725    }
4726
4727    private ArraySet<String> getPackageNamesForIntent(Intent intent) {
4728        List<ResolveInfo> ris = null;
4729        try {
4730            ris = AppGlobals.getPackageManager().queryIntentReceivers(
4731                    intent, null, 0, UserHandle.USER_OWNER);
4732        } catch (RemoteException e) {
4733        }
4734        ArraySet<String> pkgNames = new ArraySet<String>();
4735        if (ris != null) {
4736            for (ResolveInfo ri : ris) {
4737                pkgNames.add(ri.activityInfo.packageName);
4738            }
4739        }
4740        return pkgNames;
4741    }
4742
4743    private void performBootDexOpt(PackageParser.Package pkg, int curr, int total) {
4744        if (DEBUG_DEXOPT) {
4745            Log.i(TAG, "Optimizing app " + curr + " of " + total + ": " + pkg.packageName);
4746        }
4747        if (!isFirstBoot()) {
4748            try {
4749                ActivityManagerNative.getDefault().showBootMessage(
4750                        mContext.getResources().getString(R.string.android_upgrading_apk,
4751                                curr, total), true);
4752            } catch (RemoteException e) {
4753            }
4754        }
4755        PackageParser.Package p = pkg;
4756        synchronized (mInstallLock) {
4757            mPackageDexOptimizer.performDexOpt(p, null /* instruction sets */,
4758                    false /* force dex */, false /* defer */, true /* include dependencies */,
4759                    false /* boot complete */);
4760        }
4761    }
4762
4763    @Override
4764    public boolean performDexOptIfNeeded(String packageName, String instructionSet) {
4765        return performDexOpt(packageName, instructionSet, false);
4766    }
4767
4768    public boolean performDexOpt(String packageName, String instructionSet, boolean backgroundDexopt) {
4769        boolean dexopt = mLazyDexOpt || backgroundDexopt;
4770        boolean updateUsage = !backgroundDexopt;  // Don't update usage if this is just a backgroundDexopt
4771        if (!dexopt && !updateUsage) {
4772            // We aren't going to dexopt or update usage, so bail early.
4773            return false;
4774        }
4775        PackageParser.Package p;
4776        final String targetInstructionSet;
4777        synchronized (mPackages) {
4778            p = mPackages.get(packageName);
4779            if (p == null) {
4780                return false;
4781            }
4782            if (updateUsage) {
4783                p.mLastPackageUsageTimeInMills = System.currentTimeMillis();
4784            }
4785            mPackageUsage.write(false);
4786            if (!dexopt) {
4787                // We aren't going to dexopt, so bail early.
4788                return false;
4789            }
4790
4791            targetInstructionSet = instructionSet != null ? instructionSet :
4792                    getPrimaryInstructionSet(p.applicationInfo);
4793            if (p.mDexOptPerformed.contains(targetInstructionSet)) {
4794                return false;
4795            }
4796        }
4797
4798        synchronized (mInstallLock) {
4799            final String[] instructionSets = new String[] { targetInstructionSet };
4800            int result = mPackageDexOptimizer.performDexOpt(p, instructionSets,
4801                    false /* forceDex */, false /* defer */, true /* inclDependencies */,
4802                    true /* boot complete */);
4803            return result == PackageDexOptimizer.DEX_OPT_PERFORMED;
4804        }
4805    }
4806
4807    public ArraySet<String> getPackagesThatNeedDexOpt() {
4808        ArraySet<String> pkgs = null;
4809        synchronized (mPackages) {
4810            for (PackageParser.Package p : mPackages.values()) {
4811                if (DEBUG_DEXOPT) {
4812                    Log.i(TAG, p.packageName + " mDexOptPerformed=" + p.mDexOptPerformed.toArray());
4813                }
4814                if (!p.mDexOptPerformed.isEmpty()) {
4815                    continue;
4816                }
4817                if (pkgs == null) {
4818                    pkgs = new ArraySet<String>();
4819                }
4820                pkgs.add(p.packageName);
4821            }
4822        }
4823        return pkgs;
4824    }
4825
4826    public void shutdown() {
4827        mPackageUsage.write(true);
4828    }
4829
4830    @Override
4831    public void forceDexOpt(String packageName) {
4832        enforceSystemOrRoot("forceDexOpt");
4833
4834        PackageParser.Package pkg;
4835        synchronized (mPackages) {
4836            pkg = mPackages.get(packageName);
4837            if (pkg == null) {
4838                throw new IllegalArgumentException("Missing package: " + packageName);
4839            }
4840        }
4841
4842        synchronized (mInstallLock) {
4843            final String[] instructionSets = new String[] {
4844                    getPrimaryInstructionSet(pkg.applicationInfo) };
4845            final int res = mPackageDexOptimizer.performDexOpt(pkg, instructionSets,
4846                    true /*forceDex*/, false /* defer */, true /* inclDependencies */,
4847                    true /* boot complete */);
4848            if (res != PackageDexOptimizer.DEX_OPT_PERFORMED) {
4849                throw new IllegalStateException("Failed to dexopt: " + res);
4850            }
4851        }
4852    }
4853
4854    private boolean verifyPackageUpdateLPr(PackageSetting oldPkg, PackageParser.Package newPkg) {
4855        if ((oldPkg.pkgFlags&ApplicationInfo.FLAG_SYSTEM) == 0) {
4856            Slog.w(TAG, "Unable to update from " + oldPkg.name
4857                    + " to " + newPkg.packageName
4858                    + ": old package not in system partition");
4859            return false;
4860        } else if (mPackages.get(oldPkg.name) != null) {
4861            Slog.w(TAG, "Unable to update from " + oldPkg.name
4862                    + " to " + newPkg.packageName
4863                    + ": old package still exists");
4864            return false;
4865        }
4866        return true;
4867    }
4868
4869    private File getDataPathForPackage(String packageName, int userId) {
4870        /*
4871         * Until we fully support multiple users, return the directory we
4872         * previously would have. The PackageManagerTests will need to be
4873         * revised when this is changed back..
4874         */
4875        if (userId == 0) {
4876            return new File(mAppDataDir, packageName);
4877        } else {
4878            return new File(mUserAppDataDir.getAbsolutePath() + File.separator + userId
4879                + File.separator + packageName);
4880        }
4881    }
4882
4883    private int createDataDirsLI(String packageName, int uid, String seinfo) {
4884        int[] users = sUserManager.getUserIds();
4885        int res = mInstaller.install(packageName, uid, uid, seinfo);
4886        if (res < 0) {
4887            return res;
4888        }
4889        for (int user : users) {
4890            if (user != 0) {
4891                res = mInstaller.createUserData(packageName,
4892                        UserHandle.getUid(user, uid), user, seinfo);
4893                if (res < 0) {
4894                    return res;
4895                }
4896            }
4897        }
4898        return res;
4899    }
4900
4901    private int removeDataDirsLI(String packageName) {
4902        int[] users = sUserManager.getUserIds();
4903        int res = 0;
4904        for (int user : users) {
4905            int resInner = mInstaller.remove(packageName, user);
4906            if (resInner < 0) {
4907                res = resInner;
4908            }
4909        }
4910
4911        return res;
4912    }
4913
4914    private int deleteCodeCacheDirsLI(String packageName) {
4915        int[] users = sUserManager.getUserIds();
4916        int res = 0;
4917        for (int user : users) {
4918            int resInner = mInstaller.deleteCodeCacheFiles(packageName, user);
4919            if (resInner < 0) {
4920                res = resInner;
4921            }
4922        }
4923        return res;
4924    }
4925
4926    private void addSharedLibraryLPw(ArraySet<String> usesLibraryFiles, SharedLibraryEntry file,
4927            PackageParser.Package changingLib) {
4928        if (file.path != null) {
4929            usesLibraryFiles.add(file.path);
4930            return;
4931        }
4932        PackageParser.Package p = mPackages.get(file.apk);
4933        if (changingLib != null && changingLib.packageName.equals(file.apk)) {
4934            // If we are doing this while in the middle of updating a library apk,
4935            // then we need to make sure to use that new apk for determining the
4936            // dependencies here.  (We haven't yet finished committing the new apk
4937            // to the package manager state.)
4938            if (p == null || p.packageName.equals(changingLib.packageName)) {
4939                p = changingLib;
4940            }
4941        }
4942        if (p != null) {
4943            usesLibraryFiles.addAll(p.getAllCodePaths());
4944        }
4945    }
4946
4947    private void updateSharedLibrariesLPw(PackageParser.Package pkg,
4948            PackageParser.Package changingLib) throws PackageManagerException {
4949        if (pkg.usesLibraries != null || pkg.usesOptionalLibraries != null) {
4950            final ArraySet<String> usesLibraryFiles = new ArraySet<>();
4951            int N = pkg.usesLibraries != null ? pkg.usesLibraries.size() : 0;
4952            for (int i=0; i<N; i++) {
4953                final SharedLibraryEntry file = mSharedLibraries.get(pkg.usesLibraries.get(i));
4954                if (file == null) {
4955                    throw new PackageManagerException(INSTALL_FAILED_MISSING_SHARED_LIBRARY,
4956                            "Package " + pkg.packageName + " requires unavailable shared library "
4957                            + pkg.usesLibraries.get(i) + "; failing!");
4958                }
4959                addSharedLibraryLPw(usesLibraryFiles, file, changingLib);
4960            }
4961            N = pkg.usesOptionalLibraries != null ? pkg.usesOptionalLibraries.size() : 0;
4962            for (int i=0; i<N; i++) {
4963                final SharedLibraryEntry file = mSharedLibraries.get(pkg.usesOptionalLibraries.get(i));
4964                if (file == null) {
4965                    Slog.w(TAG, "Package " + pkg.packageName
4966                            + " desires unavailable shared library "
4967                            + pkg.usesOptionalLibraries.get(i) + "; ignoring!");
4968                } else {
4969                    addSharedLibraryLPw(usesLibraryFiles, file, changingLib);
4970                }
4971            }
4972            N = usesLibraryFiles.size();
4973            if (N > 0) {
4974                pkg.usesLibraryFiles = usesLibraryFiles.toArray(new String[N]);
4975            } else {
4976                pkg.usesLibraryFiles = null;
4977            }
4978        }
4979    }
4980
4981    private static boolean hasString(List<String> list, List<String> which) {
4982        if (list == null) {
4983            return false;
4984        }
4985        for (int i=list.size()-1; i>=0; i--) {
4986            for (int j=which.size()-1; j>=0; j--) {
4987                if (which.get(j).equals(list.get(i))) {
4988                    return true;
4989                }
4990            }
4991        }
4992        return false;
4993    }
4994
4995    private void updateAllSharedLibrariesLPw() {
4996        for (PackageParser.Package pkg : mPackages.values()) {
4997            try {
4998                updateSharedLibrariesLPw(pkg, null);
4999            } catch (PackageManagerException e) {
5000                Slog.e(TAG, "updateAllSharedLibrariesLPw failed: " + e.getMessage());
5001            }
5002        }
5003    }
5004
5005    private ArrayList<PackageParser.Package> updateAllSharedLibrariesLPw(
5006            PackageParser.Package changingPkg) {
5007        ArrayList<PackageParser.Package> res = null;
5008        for (PackageParser.Package pkg : mPackages.values()) {
5009            if (hasString(pkg.usesLibraries, changingPkg.libraryNames)
5010                    || hasString(pkg.usesOptionalLibraries, changingPkg.libraryNames)) {
5011                if (res == null) {
5012                    res = new ArrayList<PackageParser.Package>();
5013                }
5014                res.add(pkg);
5015                try {
5016                    updateSharedLibrariesLPw(pkg, changingPkg);
5017                } catch (PackageManagerException e) {
5018                    Slog.e(TAG, "updateAllSharedLibrariesLPw failed: " + e.getMessage());
5019                }
5020            }
5021        }
5022        return res;
5023    }
5024
5025    /**
5026     * Derive the value of the {@code cpuAbiOverride} based on the provided
5027     * value and an optional stored value from the package settings.
5028     */
5029    private static String deriveAbiOverride(String abiOverride, PackageSetting settings) {
5030        String cpuAbiOverride = null;
5031
5032        if (NativeLibraryHelper.CLEAR_ABI_OVERRIDE.equals(abiOverride)) {
5033            cpuAbiOverride = null;
5034        } else if (abiOverride != null) {
5035            cpuAbiOverride = abiOverride;
5036        } else if (settings != null) {
5037            cpuAbiOverride = settings.cpuAbiOverrideString;
5038        }
5039
5040        return cpuAbiOverride;
5041    }
5042
5043    private PackageParser.Package scanPackageLI(PackageParser.Package pkg, int parseFlags,
5044            int scanFlags, long currentTime, UserHandle user) throws PackageManagerException {
5045        boolean success = false;
5046        try {
5047            final PackageParser.Package res = scanPackageDirtyLI(pkg, parseFlags, scanFlags,
5048                    currentTime, user);
5049            success = true;
5050            return res;
5051        } finally {
5052            if (!success && (scanFlags & SCAN_DELETE_DATA_ON_FAILURES) != 0) {
5053                removeDataDirsLI(pkg.packageName);
5054            }
5055        }
5056    }
5057
5058    private PackageParser.Package scanPackageDirtyLI(PackageParser.Package pkg, int parseFlags,
5059            int scanFlags, long currentTime, UserHandle user) throws PackageManagerException {
5060        final File scanFile = new File(pkg.codePath);
5061        if (pkg.applicationInfo.getCodePath() == null ||
5062                pkg.applicationInfo.getResourcePath() == null) {
5063            // Bail out. The resource and code paths haven't been set.
5064            throw new PackageManagerException(INSTALL_FAILED_INVALID_APK,
5065                    "Code and resource paths haven't been set correctly");
5066        }
5067
5068        if ((parseFlags&PackageParser.PARSE_IS_SYSTEM) != 0) {
5069            pkg.applicationInfo.flags |= ApplicationInfo.FLAG_SYSTEM;
5070        } else {
5071            // Only allow system apps to be flagged as core apps.
5072            pkg.coreApp = false;
5073        }
5074
5075        if ((parseFlags&PackageParser.PARSE_IS_PRIVILEGED) != 0) {
5076            pkg.applicationInfo.privateFlags |= ApplicationInfo.PRIVATE_FLAG_PRIVILEGED;
5077        }
5078
5079        if (mCustomResolverComponentName != null &&
5080                mCustomResolverComponentName.getPackageName().equals(pkg.packageName)) {
5081            setUpCustomResolverActivity(pkg);
5082        }
5083
5084        if (pkg.packageName.equals("android")) {
5085            synchronized (mPackages) {
5086                if (mAndroidApplication != null) {
5087                    Slog.w(TAG, "*************************************************");
5088                    Slog.w(TAG, "Core android package being redefined.  Skipping.");
5089                    Slog.w(TAG, " file=" + scanFile);
5090                    Slog.w(TAG, "*************************************************");
5091                    throw new PackageManagerException(INSTALL_FAILED_DUPLICATE_PACKAGE,
5092                            "Core android package being redefined.  Skipping.");
5093                }
5094
5095                // Set up information for our fall-back user intent resolution activity.
5096                mPlatformPackage = pkg;
5097                pkg.mVersionCode = mSdkVersion;
5098                mAndroidApplication = pkg.applicationInfo;
5099
5100                if (!mResolverReplaced) {
5101                    mResolveActivity.applicationInfo = mAndroidApplication;
5102                    mResolveActivity.name = ResolverActivity.class.getName();
5103                    mResolveActivity.packageName = mAndroidApplication.packageName;
5104                    mResolveActivity.processName = "system:ui";
5105                    mResolveActivity.launchMode = ActivityInfo.LAUNCH_MULTIPLE;
5106                    mResolveActivity.documentLaunchMode = ActivityInfo.DOCUMENT_LAUNCH_NEVER;
5107                    mResolveActivity.flags = ActivityInfo.FLAG_EXCLUDE_FROM_RECENTS;
5108                    mResolveActivity.theme = R.style.Theme_Holo_Dialog_Alert;
5109                    mResolveActivity.exported = true;
5110                    mResolveActivity.enabled = true;
5111                    mResolveInfo.activityInfo = mResolveActivity;
5112                    mResolveInfo.priority = 0;
5113                    mResolveInfo.preferredOrder = 0;
5114                    mResolveInfo.match = 0;
5115                    mResolveComponentName = new ComponentName(
5116                            mAndroidApplication.packageName, mResolveActivity.name);
5117                }
5118            }
5119        }
5120
5121        if (DEBUG_PACKAGE_SCANNING) {
5122            if ((parseFlags & PackageParser.PARSE_CHATTY) != 0)
5123                Log.d(TAG, "Scanning package " + pkg.packageName);
5124        }
5125
5126        if (mPackages.containsKey(pkg.packageName)
5127                || mSharedLibraries.containsKey(pkg.packageName)) {
5128            throw new PackageManagerException(INSTALL_FAILED_DUPLICATE_PACKAGE,
5129                    "Application package " + pkg.packageName
5130                    + " already installed.  Skipping duplicate.");
5131        }
5132
5133        // Initialize package source and resource directories
5134        File destCodeFile = new File(pkg.applicationInfo.getCodePath());
5135        File destResourceFile = new File(pkg.applicationInfo.getResourcePath());
5136
5137        SharedUserSetting suid = null;
5138        PackageSetting pkgSetting = null;
5139
5140        if (!isSystemApp(pkg)) {
5141            // Only system apps can use these features.
5142            pkg.mOriginalPackages = null;
5143            pkg.mRealPackage = null;
5144            pkg.mAdoptPermissions = null;
5145        }
5146
5147        // writer
5148        synchronized (mPackages) {
5149            if (pkg.mSharedUserId != null) {
5150                suid = mSettings.getSharedUserLPw(pkg.mSharedUserId, 0, 0, true);
5151                if (suid == null) {
5152                    throw new PackageManagerException(INSTALL_FAILED_INSUFFICIENT_STORAGE,
5153                            "Creating application package " + pkg.packageName
5154                            + " for shared user failed");
5155                }
5156                if (DEBUG_PACKAGE_SCANNING) {
5157                    if ((parseFlags & PackageParser.PARSE_CHATTY) != 0)
5158                        Log.d(TAG, "Shared UserID " + pkg.mSharedUserId + " (uid=" + suid.userId
5159                                + "): packages=" + suid.packages);
5160                }
5161            }
5162
5163            // Check if we are renaming from an original package name.
5164            PackageSetting origPackage = null;
5165            String realName = null;
5166            if (pkg.mOriginalPackages != null) {
5167                // This package may need to be renamed to a previously
5168                // installed name.  Let's check on that...
5169                final String renamed = mSettings.mRenamedPackages.get(pkg.mRealPackage);
5170                if (pkg.mOriginalPackages.contains(renamed)) {
5171                    // This package had originally been installed as the
5172                    // original name, and we have already taken care of
5173                    // transitioning to the new one.  Just update the new
5174                    // one to continue using the old name.
5175                    realName = pkg.mRealPackage;
5176                    if (!pkg.packageName.equals(renamed)) {
5177                        // Callers into this function may have already taken
5178                        // care of renaming the package; only do it here if
5179                        // it is not already done.
5180                        pkg.setPackageName(renamed);
5181                    }
5182
5183                } else {
5184                    for (int i=pkg.mOriginalPackages.size()-1; i>=0; i--) {
5185                        if ((origPackage = mSettings.peekPackageLPr(
5186                                pkg.mOriginalPackages.get(i))) != null) {
5187                            // We do have the package already installed under its
5188                            // original name...  should we use it?
5189                            if (!verifyPackageUpdateLPr(origPackage, pkg)) {
5190                                // New package is not compatible with original.
5191                                origPackage = null;
5192                                continue;
5193                            } else if (origPackage.sharedUser != null) {
5194                                // Make sure uid is compatible between packages.
5195                                if (!origPackage.sharedUser.name.equals(pkg.mSharedUserId)) {
5196                                    Slog.w(TAG, "Unable to migrate data from " + origPackage.name
5197                                            + " to " + pkg.packageName + ": old uid "
5198                                            + origPackage.sharedUser.name
5199                                            + " differs from " + pkg.mSharedUserId);
5200                                    origPackage = null;
5201                                    continue;
5202                                }
5203                            } else {
5204                                if (DEBUG_UPGRADE) Log.v(TAG, "Renaming new package "
5205                                        + pkg.packageName + " to old name " + origPackage.name);
5206                            }
5207                            break;
5208                        }
5209                    }
5210                }
5211            }
5212
5213            if (mTransferedPackages.contains(pkg.packageName)) {
5214                Slog.w(TAG, "Package " + pkg.packageName
5215                        + " was transferred to another, but its .apk remains");
5216            }
5217
5218            // Just create the setting, don't add it yet. For already existing packages
5219            // the PkgSetting exists already and doesn't have to be created.
5220            pkgSetting = mSettings.getPackageLPw(pkg, origPackage, realName, suid, destCodeFile,
5221                    destResourceFile, pkg.applicationInfo.nativeLibraryRootDir,
5222                    pkg.applicationInfo.primaryCpuAbi,
5223                    pkg.applicationInfo.secondaryCpuAbi,
5224                    pkg.applicationInfo.flags, pkg.applicationInfo.privateFlags,
5225                    user, false);
5226            if (pkgSetting == null) {
5227                throw new PackageManagerException(INSTALL_FAILED_INSUFFICIENT_STORAGE,
5228                        "Creating application package " + pkg.packageName + " failed");
5229            }
5230
5231            if (pkgSetting.origPackage != null) {
5232                // If we are first transitioning from an original package,
5233                // fix up the new package's name now.  We need to do this after
5234                // looking up the package under its new name, so getPackageLP
5235                // can take care of fiddling things correctly.
5236                pkg.setPackageName(origPackage.name);
5237
5238                // File a report about this.
5239                String msg = "New package " + pkgSetting.realName
5240                        + " renamed to replace old package " + pkgSetting.name;
5241                reportSettingsProblem(Log.WARN, msg);
5242
5243                // Make a note of it.
5244                mTransferedPackages.add(origPackage.name);
5245
5246                // No longer need to retain this.
5247                pkgSetting.origPackage = null;
5248            }
5249
5250            if (realName != null) {
5251                // Make a note of it.
5252                mTransferedPackages.add(pkg.packageName);
5253            }
5254
5255            if (mSettings.isDisabledSystemPackageLPr(pkg.packageName)) {
5256                pkg.applicationInfo.flags |= ApplicationInfo.FLAG_UPDATED_SYSTEM_APP;
5257            }
5258
5259            if ((parseFlags&PackageParser.PARSE_IS_SYSTEM_DIR) == 0) {
5260                // Check all shared libraries and map to their actual file path.
5261                // We only do this here for apps not on a system dir, because those
5262                // are the only ones that can fail an install due to this.  We
5263                // will take care of the system apps by updating all of their
5264                // library paths after the scan is done.
5265                updateSharedLibrariesLPw(pkg, null);
5266            }
5267
5268            if (mFoundPolicyFile) {
5269                SELinuxMMAC.assignSeinfoValue(pkg);
5270            }
5271
5272            pkg.applicationInfo.uid = pkgSetting.appId;
5273            pkg.mExtras = pkgSetting;
5274            if (!pkgSetting.keySetData.isUsingUpgradeKeySets() || pkgSetting.sharedUser != null) {
5275                try {
5276                    verifySignaturesLP(pkgSetting, pkg);
5277                    // We just determined the app is signed correctly, so bring
5278                    // over the latest parsed certs.
5279                    pkgSetting.signatures.mSignatures = pkg.mSignatures;
5280                } catch (PackageManagerException e) {
5281                    if ((parseFlags & PackageParser.PARSE_IS_SYSTEM_DIR) == 0) {
5282                        throw e;
5283                    }
5284                    // The signature has changed, but this package is in the system
5285                    // image...  let's recover!
5286                    pkgSetting.signatures.mSignatures = pkg.mSignatures;
5287                    // However...  if this package is part of a shared user, but it
5288                    // doesn't match the signature of the shared user, let's fail.
5289                    // What this means is that you can't change the signatures
5290                    // associated with an overall shared user, which doesn't seem all
5291                    // that unreasonable.
5292                    if (pkgSetting.sharedUser != null) {
5293                        if (compareSignatures(pkgSetting.sharedUser.signatures.mSignatures,
5294                                              pkg.mSignatures) != PackageManager.SIGNATURE_MATCH) {
5295                            throw new PackageManagerException(
5296                                    INSTALL_PARSE_FAILED_INCONSISTENT_CERTIFICATES,
5297                                            "Signature mismatch for shared user : "
5298                                            + pkgSetting.sharedUser);
5299                        }
5300                    }
5301                    // File a report about this.
5302                    String msg = "System package " + pkg.packageName
5303                        + " signature changed; retaining data.";
5304                    reportSettingsProblem(Log.WARN, msg);
5305                }
5306            } else {
5307                if (!checkUpgradeKeySetLP(pkgSetting, pkg)) {
5308                    throw new PackageManagerException(INSTALL_FAILED_UPDATE_INCOMPATIBLE, "Package "
5309                            + pkg.packageName + " upgrade keys do not match the "
5310                            + "previously installed version");
5311                } else {
5312                    // We just determined the app is signed correctly, so bring
5313                    // over the latest parsed certs.
5314                    pkgSetting.signatures.mSignatures = pkg.mSignatures;
5315                }
5316            }
5317            // Verify that this new package doesn't have any content providers
5318            // that conflict with existing packages.  Only do this if the
5319            // package isn't already installed, since we don't want to break
5320            // things that are installed.
5321            if ((scanFlags & SCAN_NEW_INSTALL) != 0) {
5322                final int N = pkg.providers.size();
5323                int i;
5324                for (i=0; i<N; i++) {
5325                    PackageParser.Provider p = pkg.providers.get(i);
5326                    if (p.info.authority != null) {
5327                        String names[] = p.info.authority.split(";");
5328                        for (int j = 0; j < names.length; j++) {
5329                            if (mProvidersByAuthority.containsKey(names[j])) {
5330                                PackageParser.Provider other = mProvidersByAuthority.get(names[j]);
5331                                final String otherPackageName =
5332                                        ((other != null && other.getComponentName() != null) ?
5333                                                other.getComponentName().getPackageName() : "?");
5334                                throw new PackageManagerException(
5335                                        INSTALL_FAILED_CONFLICTING_PROVIDER,
5336                                                "Can't install because provider name " + names[j]
5337                                                + " (in package " + pkg.applicationInfo.packageName
5338                                                + ") is already used by " + otherPackageName);
5339                            }
5340                        }
5341                    }
5342                }
5343            }
5344
5345            if (pkg.mAdoptPermissions != null) {
5346                // This package wants to adopt ownership of permissions from
5347                // another package.
5348                for (int i = pkg.mAdoptPermissions.size() - 1; i >= 0; i--) {
5349                    final String origName = pkg.mAdoptPermissions.get(i);
5350                    final PackageSetting orig = mSettings.peekPackageLPr(origName);
5351                    if (orig != null) {
5352                        if (verifyPackageUpdateLPr(orig, pkg)) {
5353                            Slog.i(TAG, "Adopting permissions from " + origName + " to "
5354                                    + pkg.packageName);
5355                            mSettings.transferPermissionsLPw(origName, pkg.packageName);
5356                        }
5357                    }
5358                }
5359            }
5360        }
5361
5362        final String pkgName = pkg.packageName;
5363
5364        final long scanFileTime = scanFile.lastModified();
5365        final boolean forceDex = (scanFlags & SCAN_FORCE_DEX) != 0;
5366        pkg.applicationInfo.processName = fixProcessName(
5367                pkg.applicationInfo.packageName,
5368                pkg.applicationInfo.processName,
5369                pkg.applicationInfo.uid);
5370
5371        File dataPath;
5372        if (mPlatformPackage == pkg) {
5373            // The system package is special.
5374            dataPath = new File(Environment.getDataDirectory(), "system");
5375
5376            pkg.applicationInfo.dataDir = dataPath.getPath();
5377
5378        } else {
5379            // This is a normal package, need to make its data directory.
5380            dataPath = getDataPathForPackage(pkg.packageName, 0);
5381
5382            boolean uidError = false;
5383            if (dataPath.exists()) {
5384                int currentUid = 0;
5385                try {
5386                    StructStat stat = Os.stat(dataPath.getPath());
5387                    currentUid = stat.st_uid;
5388                } catch (ErrnoException e) {
5389                    Slog.e(TAG, "Couldn't stat path " + dataPath.getPath(), e);
5390                }
5391
5392                // If we have mismatched owners for the data path, we have a problem.
5393                if (currentUid != pkg.applicationInfo.uid) {
5394                    boolean recovered = false;
5395                    if (currentUid == 0) {
5396                        // The directory somehow became owned by root.  Wow.
5397                        // This is probably because the system was stopped while
5398                        // installd was in the middle of messing with its libs
5399                        // directory.  Ask installd to fix that.
5400                        int ret = mInstaller.fixUid(pkgName, pkg.applicationInfo.uid,
5401                                pkg.applicationInfo.uid);
5402                        if (ret >= 0) {
5403                            recovered = true;
5404                            String msg = "Package " + pkg.packageName
5405                                    + " unexpectedly changed to uid 0; recovered to " +
5406                                    + pkg.applicationInfo.uid;
5407                            reportSettingsProblem(Log.WARN, msg);
5408                        }
5409                    }
5410                    if (!recovered && ((parseFlags&PackageParser.PARSE_IS_SYSTEM) != 0
5411                            || (scanFlags&SCAN_BOOTING) != 0)) {
5412                        // If this is a system app, we can at least delete its
5413                        // current data so the application will still work.
5414                        int ret = removeDataDirsLI(pkgName);
5415                        if (ret >= 0) {
5416                            // TODO: Kill the processes first
5417                            // Old data gone!
5418                            String prefix = (parseFlags&PackageParser.PARSE_IS_SYSTEM) != 0
5419                                    ? "System package " : "Third party package ";
5420                            String msg = prefix + pkg.packageName
5421                                    + " has changed from uid: "
5422                                    + currentUid + " to "
5423                                    + pkg.applicationInfo.uid + "; old data erased";
5424                            reportSettingsProblem(Log.WARN, msg);
5425                            recovered = true;
5426
5427                            // And now re-install the app.
5428                            ret = createDataDirsLI(pkgName, pkg.applicationInfo.uid,
5429                                                   pkg.applicationInfo.seinfo);
5430                            if (ret == -1) {
5431                                // Ack should not happen!
5432                                msg = prefix + pkg.packageName
5433                                        + " could not have data directory re-created after delete.";
5434                                reportSettingsProblem(Log.WARN, msg);
5435                                throw new PackageManagerException(
5436                                        INSTALL_FAILED_INSUFFICIENT_STORAGE, msg);
5437                            }
5438                        }
5439                        if (!recovered) {
5440                            mHasSystemUidErrors = true;
5441                        }
5442                    } else if (!recovered) {
5443                        // If we allow this install to proceed, we will be broken.
5444                        // Abort, abort!
5445                        throw new PackageManagerException(INSTALL_FAILED_UID_CHANGED,
5446                                "scanPackageLI");
5447                    }
5448                    if (!recovered) {
5449                        pkg.applicationInfo.dataDir = "/mismatched_uid/settings_"
5450                            + pkg.applicationInfo.uid + "/fs_"
5451                            + currentUid;
5452                        pkg.applicationInfo.nativeLibraryDir = pkg.applicationInfo.dataDir;
5453                        pkg.applicationInfo.nativeLibraryRootDir = pkg.applicationInfo.dataDir;
5454                        String msg = "Package " + pkg.packageName
5455                                + " has mismatched uid: "
5456                                + currentUid + " on disk, "
5457                                + pkg.applicationInfo.uid + " in settings";
5458                        // writer
5459                        synchronized (mPackages) {
5460                            mSettings.mReadMessages.append(msg);
5461                            mSettings.mReadMessages.append('\n');
5462                            uidError = true;
5463                            if (!pkgSetting.uidError) {
5464                                reportSettingsProblem(Log.ERROR, msg);
5465                            }
5466                        }
5467                    }
5468                }
5469                pkg.applicationInfo.dataDir = dataPath.getPath();
5470                if (mShouldRestoreconData) {
5471                    Slog.i(TAG, "SELinux relabeling of " + pkg.packageName + " issued.");
5472                    mInstaller.restoreconData(pkg.packageName, pkg.applicationInfo.seinfo,
5473                                pkg.applicationInfo.uid);
5474                }
5475            } else {
5476                if (DEBUG_PACKAGE_SCANNING) {
5477                    if ((parseFlags & PackageParser.PARSE_CHATTY) != 0)
5478                        Log.v(TAG, "Want this data dir: " + dataPath);
5479                }
5480                //invoke installer to do the actual installation
5481                int ret = createDataDirsLI(pkgName, pkg.applicationInfo.uid,
5482                                           pkg.applicationInfo.seinfo);
5483                if (ret < 0) {
5484                    // Error from installer
5485                    throw new PackageManagerException(INSTALL_FAILED_INSUFFICIENT_STORAGE,
5486                            "Unable to create data dirs [errorCode=" + ret + "]");
5487                }
5488
5489                if (dataPath.exists()) {
5490                    pkg.applicationInfo.dataDir = dataPath.getPath();
5491                } else {
5492                    Slog.w(TAG, "Unable to create data directory: " + dataPath);
5493                    pkg.applicationInfo.dataDir = null;
5494                }
5495            }
5496
5497            pkgSetting.uidError = uidError;
5498        }
5499
5500        final String path = scanFile.getPath();
5501        final String cpuAbiOverride = deriveAbiOverride(pkg.cpuAbiOverride, pkgSetting);
5502        if (isSystemApp(pkg) && !pkg.isUpdatedSystemApp()) {
5503            setBundledAppAbisAndRoots(pkg, pkgSetting);
5504
5505            // If we haven't found any native libraries for the app, check if it has
5506            // renderscript code. We'll need to force the app to 32 bit if it has
5507            // renderscript bitcode.
5508            if (pkg.applicationInfo.primaryCpuAbi == null
5509                    && pkg.applicationInfo.secondaryCpuAbi == null
5510                    && Build.SUPPORTED_64_BIT_ABIS.length >  0) {
5511                NativeLibraryHelper.Handle handle = null;
5512                try {
5513                    handle = NativeLibraryHelper.Handle.create(scanFile);
5514                    if (NativeLibraryHelper.hasRenderscriptBitcode(handle)) {
5515                        pkg.applicationInfo.primaryCpuAbi = Build.SUPPORTED_32_BIT_ABIS[0];
5516                    }
5517                } catch (IOException ioe) {
5518                    Slog.w(TAG, "Error scanning system app : " + ioe);
5519                } finally {
5520                    IoUtils.closeQuietly(handle);
5521                }
5522            }
5523
5524            setNativeLibraryPaths(pkg);
5525        } else {
5526            if ((scanFlags & SCAN_NEW_INSTALL) == 0) {
5527                deriveNonSystemPackageAbi(pkg, scanFile, cpuAbiOverride, true /* extract libs */);
5528            } else {
5529                // TODO: We need this second call to derive in two cases :
5530                //
5531                // - To update the native library paths based on the final install location.
5532                // - We don't call dexopt when moving packages, and so we have to scan again.
5533                //
5534                // We can simplify this and avoid having to scan the package again by letting
5535                // scanPackageLI know if the current install was a move (and deriving things only
5536                // in that case) and by "reparenting" the native lib directory in the case of
5537                // a normal (non-move) install.
5538                deriveNonSystemPackageAbi(pkg, scanFile, cpuAbiOverride, false /* extract libs */);
5539            }
5540
5541            if (DEBUG_INSTALL) Slog.i(TAG, "Linking native library dir for " + path);
5542            final int[] userIds = sUserManager.getUserIds();
5543            synchronized (mInstallLock) {
5544                // Create a native library symlink only if we have native libraries
5545                // and if the native libraries are 32 bit libraries. We do not provide
5546                // this symlink for 64 bit libraries.
5547                if (pkg.applicationInfo.primaryCpuAbi != null &&
5548                        !VMRuntime.is64BitAbi(pkg.applicationInfo.primaryCpuAbi)) {
5549                    final String nativeLibPath = pkg.applicationInfo.nativeLibraryDir;
5550                    for (int userId : userIds) {
5551                        if (mInstaller.linkNativeLibraryDirectory(pkg.packageName, nativeLibPath, userId) < 0) {
5552                            throw new PackageManagerException(INSTALL_FAILED_INTERNAL_ERROR,
5553                                    "Failed linking native library dir (user=" + userId + ")");
5554                        }
5555                    }
5556                }
5557            }
5558        }
5559
5560        // This is a special case for the "system" package, where the ABI is
5561        // dictated by the zygote configuration (and init.rc). We should keep track
5562        // of this ABI so that we can deal with "normal" applications that run under
5563        // the same UID correctly.
5564        if (mPlatformPackage == pkg) {
5565            pkg.applicationInfo.primaryCpuAbi = VMRuntime.getRuntime().is64Bit() ?
5566                    Build.SUPPORTED_64_BIT_ABIS[0] : Build.SUPPORTED_32_BIT_ABIS[0];
5567        }
5568
5569        // If there's a mismatch between the abi-override in the package setting
5570        // and the abiOverride specified for the install. Warn about this because we
5571        // would've already compiled the app without taking the package setting into
5572        // account.
5573        if ((scanFlags & SCAN_NO_DEX) == 0 && (scanFlags & SCAN_NEW_INSTALL) != 0) {
5574            if (cpuAbiOverride == null && pkgSetting.cpuAbiOverrideString != null) {
5575                Slog.w(TAG, "Ignoring persisted ABI override " + cpuAbiOverride +
5576                        " for package: " + pkg.packageName);
5577            }
5578        }
5579
5580        pkgSetting.primaryCpuAbiString = pkg.applicationInfo.primaryCpuAbi;
5581        pkgSetting.secondaryCpuAbiString = pkg.applicationInfo.secondaryCpuAbi;
5582        pkgSetting.cpuAbiOverrideString = cpuAbiOverride;
5583
5584        // Copy the derived override back to the parsed package, so that we can
5585        // update the package settings accordingly.
5586        pkg.cpuAbiOverride = cpuAbiOverride;
5587
5588        if (DEBUG_ABI_SELECTION) {
5589            Slog.d(TAG, "Resolved nativeLibraryRoot for " + pkg.applicationInfo.packageName
5590                    + " to root=" + pkg.applicationInfo.nativeLibraryRootDir + ", isa="
5591                    + pkg.applicationInfo.nativeLibraryRootRequiresIsa);
5592        }
5593
5594        // Push the derived path down into PackageSettings so we know what to
5595        // clean up at uninstall time.
5596        pkgSetting.legacyNativeLibraryPathString = pkg.applicationInfo.nativeLibraryRootDir;
5597
5598        if (DEBUG_ABI_SELECTION) {
5599            Log.d(TAG, "Abis for package[" + pkg.packageName + "] are" +
5600                    " primary=" + pkg.applicationInfo.primaryCpuAbi +
5601                    " secondary=" + pkg.applicationInfo.secondaryCpuAbi);
5602        }
5603
5604        if ((scanFlags&SCAN_BOOTING) == 0 && pkgSetting.sharedUser != null) {
5605            // We don't do this here during boot because we can do it all
5606            // at once after scanning all existing packages.
5607            //
5608            // We also do this *before* we perform dexopt on this package, so that
5609            // we can avoid redundant dexopts, and also to make sure we've got the
5610            // code and package path correct.
5611            adjustCpuAbisForSharedUserLPw(pkgSetting.sharedUser.packages,
5612                    pkg, forceDex, (scanFlags & SCAN_DEFER_DEX) != 0, true /* boot complete */);
5613        }
5614
5615        if ((scanFlags & SCAN_NO_DEX) == 0) {
5616            int result = mPackageDexOptimizer.performDexOpt(pkg, null /* instruction sets */,
5617                    forceDex, (scanFlags & SCAN_DEFER_DEX) != 0, false /* inclDependencies */,
5618                    (scanFlags & SCAN_BOOTING) == 0);
5619            if (result == PackageDexOptimizer.DEX_OPT_FAILED) {
5620                throw new PackageManagerException(INSTALL_FAILED_DEXOPT, "scanPackageLI");
5621            }
5622        }
5623        if (mFactoryTest && pkg.requestedPermissions.contains(
5624                android.Manifest.permission.FACTORY_TEST)) {
5625            pkg.applicationInfo.flags |= ApplicationInfo.FLAG_FACTORY_TEST;
5626        }
5627
5628        ArrayList<PackageParser.Package> clientLibPkgs = null;
5629
5630        // writer
5631        synchronized (mPackages) {
5632            if ((pkg.applicationInfo.flags&ApplicationInfo.FLAG_SYSTEM) != 0) {
5633                // Only system apps can add new shared libraries.
5634                if (pkg.libraryNames != null) {
5635                    for (int i=0; i<pkg.libraryNames.size(); i++) {
5636                        String name = pkg.libraryNames.get(i);
5637                        boolean allowed = false;
5638                        if (pkg.isUpdatedSystemApp()) {
5639                            // New library entries can only be added through the
5640                            // system image.  This is important to get rid of a lot
5641                            // of nasty edge cases: for example if we allowed a non-
5642                            // system update of the app to add a library, then uninstalling
5643                            // the update would make the library go away, and assumptions
5644                            // we made such as through app install filtering would now
5645                            // have allowed apps on the device which aren't compatible
5646                            // with it.  Better to just have the restriction here, be
5647                            // conservative, and create many fewer cases that can negatively
5648                            // impact the user experience.
5649                            final PackageSetting sysPs = mSettings
5650                                    .getDisabledSystemPkgLPr(pkg.packageName);
5651                            if (sysPs.pkg != null && sysPs.pkg.libraryNames != null) {
5652                                for (int j=0; j<sysPs.pkg.libraryNames.size(); j++) {
5653                                    if (name.equals(sysPs.pkg.libraryNames.get(j))) {
5654                                        allowed = true;
5655                                        allowed = true;
5656                                        break;
5657                                    }
5658                                }
5659                            }
5660                        } else {
5661                            allowed = true;
5662                        }
5663                        if (allowed) {
5664                            if (!mSharedLibraries.containsKey(name)) {
5665                                mSharedLibraries.put(name, new SharedLibraryEntry(null, pkg.packageName));
5666                            } else if (!name.equals(pkg.packageName)) {
5667                                Slog.w(TAG, "Package " + pkg.packageName + " library "
5668                                        + name + " already exists; skipping");
5669                            }
5670                        } else {
5671                            Slog.w(TAG, "Package " + pkg.packageName + " declares lib "
5672                                    + name + " that is not declared on system image; skipping");
5673                        }
5674                    }
5675                    if ((scanFlags&SCAN_BOOTING) == 0) {
5676                        // If we are not booting, we need to update any applications
5677                        // that are clients of our shared library.  If we are booting,
5678                        // this will all be done once the scan is complete.
5679                        clientLibPkgs = updateAllSharedLibrariesLPw(pkg);
5680                    }
5681                }
5682            }
5683        }
5684
5685        // We also need to dexopt any apps that are dependent on this library.  Note that
5686        // if these fail, we should abort the install since installing the library will
5687        // result in some apps being broken.
5688        if (clientLibPkgs != null) {
5689            if ((scanFlags & SCAN_NO_DEX) == 0) {
5690                for (int i = 0; i < clientLibPkgs.size(); i++) {
5691                    PackageParser.Package clientPkg = clientLibPkgs.get(i);
5692                    int result = mPackageDexOptimizer.performDexOpt(clientPkg,
5693                            null /* instruction sets */, forceDex,
5694                            (scanFlags & SCAN_DEFER_DEX) != 0, false,
5695                            (scanFlags & SCAN_BOOTING) == 0);
5696                    if (result == PackageDexOptimizer.DEX_OPT_FAILED) {
5697                        throw new PackageManagerException(INSTALL_FAILED_DEXOPT,
5698                                "scanPackageLI failed to dexopt clientLibPkgs");
5699                    }
5700                }
5701            }
5702        }
5703
5704        // Request the ActivityManager to kill the process(only for existing packages)
5705        // so that we do not end up in a confused state while the user is still using the older
5706        // version of the application while the new one gets installed.
5707        if ((scanFlags & SCAN_REPLACING) != 0) {
5708            killApplication(pkg.applicationInfo.packageName,
5709                        pkg.applicationInfo.uid, "update pkg");
5710        }
5711
5712        // Also need to kill any apps that are dependent on the library.
5713        if (clientLibPkgs != null) {
5714            for (int i=0; i<clientLibPkgs.size(); i++) {
5715                PackageParser.Package clientPkg = clientLibPkgs.get(i);
5716                killApplication(clientPkg.applicationInfo.packageName,
5717                        clientPkg.applicationInfo.uid, "update lib");
5718            }
5719        }
5720
5721        // writer
5722        synchronized (mPackages) {
5723            // We don't expect installation to fail beyond this point
5724
5725            // Add the new setting to mSettings
5726            mSettings.insertPackageSettingLPw(pkgSetting, pkg);
5727            // Add the new setting to mPackages
5728            mPackages.put(pkg.applicationInfo.packageName, pkg);
5729            // Make sure we don't accidentally delete its data.
5730            final Iterator<PackageCleanItem> iter = mSettings.mPackagesToBeCleaned.iterator();
5731            while (iter.hasNext()) {
5732                PackageCleanItem item = iter.next();
5733                if (pkgName.equals(item.packageName)) {
5734                    iter.remove();
5735                }
5736            }
5737
5738            // Take care of first install / last update times.
5739            if (currentTime != 0) {
5740                if (pkgSetting.firstInstallTime == 0) {
5741                    pkgSetting.firstInstallTime = pkgSetting.lastUpdateTime = currentTime;
5742                } else if ((scanFlags&SCAN_UPDATE_TIME) != 0) {
5743                    pkgSetting.lastUpdateTime = currentTime;
5744                }
5745            } else if (pkgSetting.firstInstallTime == 0) {
5746                // We need *something*.  Take time time stamp of the file.
5747                pkgSetting.firstInstallTime = pkgSetting.lastUpdateTime = scanFileTime;
5748            } else if ((parseFlags&PackageParser.PARSE_IS_SYSTEM_DIR) != 0) {
5749                if (scanFileTime != pkgSetting.timeStamp) {
5750                    // A package on the system image has changed; consider this
5751                    // to be an update.
5752                    pkgSetting.lastUpdateTime = scanFileTime;
5753                }
5754            }
5755
5756            // Add the package's KeySets to the global KeySetManagerService
5757            KeySetManagerService ksms = mSettings.mKeySetManagerService;
5758            try {
5759                // Old KeySetData no longer valid.
5760                ksms.removeAppKeySetDataLPw(pkg.packageName);
5761                ksms.addSigningKeySetToPackageLPw(pkg.packageName, pkg.mSigningKeys);
5762                if (pkg.mKeySetMapping != null) {
5763                    for (Map.Entry<String, ArraySet<PublicKey>> entry :
5764                            pkg.mKeySetMapping.entrySet()) {
5765                        if (entry.getValue() != null) {
5766                            ksms.addDefinedKeySetToPackageLPw(pkg.packageName,
5767                                                          entry.getValue(), entry.getKey());
5768                        }
5769                    }
5770                    if (pkg.mUpgradeKeySets != null) {
5771                        for (String upgradeAlias : pkg.mUpgradeKeySets) {
5772                            ksms.addUpgradeKeySetToPackageLPw(pkg.packageName, upgradeAlias);
5773                        }
5774                    }
5775                }
5776            } catch (NullPointerException e) {
5777                Slog.e(TAG, "Could not add KeySet to " + pkg.packageName, e);
5778            } catch (IllegalArgumentException e) {
5779                Slog.e(TAG, "Could not add KeySet to malformed package" + pkg.packageName, e);
5780            }
5781
5782            int N = pkg.providers.size();
5783            StringBuilder r = null;
5784            int i;
5785            for (i=0; i<N; i++) {
5786                PackageParser.Provider p = pkg.providers.get(i);
5787                p.info.processName = fixProcessName(pkg.applicationInfo.processName,
5788                        p.info.processName, pkg.applicationInfo.uid);
5789                mProviders.addProvider(p);
5790                p.syncable = p.info.isSyncable;
5791                if (p.info.authority != null) {
5792                    String names[] = p.info.authority.split(";");
5793                    p.info.authority = null;
5794                    for (int j = 0; j < names.length; j++) {
5795                        if (j == 1 && p.syncable) {
5796                            // We only want the first authority for a provider to possibly be
5797                            // syncable, so if we already added this provider using a different
5798                            // authority clear the syncable flag. We copy the provider before
5799                            // changing it because the mProviders object contains a reference
5800                            // to a provider that we don't want to change.
5801                            // Only do this for the second authority since the resulting provider
5802                            // object can be the same for all future authorities for this provider.
5803                            p = new PackageParser.Provider(p);
5804                            p.syncable = false;
5805                        }
5806                        if (!mProvidersByAuthority.containsKey(names[j])) {
5807                            mProvidersByAuthority.put(names[j], p);
5808                            if (p.info.authority == null) {
5809                                p.info.authority = names[j];
5810                            } else {
5811                                p.info.authority = p.info.authority + ";" + names[j];
5812                            }
5813                            if (DEBUG_PACKAGE_SCANNING) {
5814                                if ((parseFlags & PackageParser.PARSE_CHATTY) != 0)
5815                                    Log.d(TAG, "Registered content provider: " + names[j]
5816                                            + ", className = " + p.info.name + ", isSyncable = "
5817                                            + p.info.isSyncable);
5818                            }
5819                        } else {
5820                            PackageParser.Provider other = mProvidersByAuthority.get(names[j]);
5821                            Slog.w(TAG, "Skipping provider name " + names[j] +
5822                                    " (in package " + pkg.applicationInfo.packageName +
5823                                    "): name already used by "
5824                                    + ((other != null && other.getComponentName() != null)
5825                                            ? other.getComponentName().getPackageName() : "?"));
5826                        }
5827                    }
5828                }
5829                if ((parseFlags&PackageParser.PARSE_CHATTY) != 0) {
5830                    if (r == null) {
5831                        r = new StringBuilder(256);
5832                    } else {
5833                        r.append(' ');
5834                    }
5835                    r.append(p.info.name);
5836                }
5837            }
5838            if (r != null) {
5839                if (DEBUG_PACKAGE_SCANNING) Log.d(TAG, "  Providers: " + r);
5840            }
5841
5842            N = pkg.services.size();
5843            r = null;
5844            for (i=0; i<N; i++) {
5845                PackageParser.Service s = pkg.services.get(i);
5846                s.info.processName = fixProcessName(pkg.applicationInfo.processName,
5847                        s.info.processName, pkg.applicationInfo.uid);
5848                mServices.addService(s);
5849                if ((parseFlags&PackageParser.PARSE_CHATTY) != 0) {
5850                    if (r == null) {
5851                        r = new StringBuilder(256);
5852                    } else {
5853                        r.append(' ');
5854                    }
5855                    r.append(s.info.name);
5856                }
5857            }
5858            if (r != null) {
5859                if (DEBUG_PACKAGE_SCANNING) Log.d(TAG, "  Services: " + r);
5860            }
5861
5862            N = pkg.receivers.size();
5863            r = null;
5864            for (i=0; i<N; i++) {
5865                PackageParser.Activity a = pkg.receivers.get(i);
5866                a.info.processName = fixProcessName(pkg.applicationInfo.processName,
5867                        a.info.processName, pkg.applicationInfo.uid);
5868                mReceivers.addActivity(a, "receiver");
5869                if ((parseFlags&PackageParser.PARSE_CHATTY) != 0) {
5870                    if (r == null) {
5871                        r = new StringBuilder(256);
5872                    } else {
5873                        r.append(' ');
5874                    }
5875                    r.append(a.info.name);
5876                }
5877            }
5878            if (r != null) {
5879                if (DEBUG_PACKAGE_SCANNING) Log.d(TAG, "  Receivers: " + r);
5880            }
5881
5882            N = pkg.activities.size();
5883            r = null;
5884            for (i=0; i<N; i++) {
5885                PackageParser.Activity a = pkg.activities.get(i);
5886                a.info.processName = fixProcessName(pkg.applicationInfo.processName,
5887                        a.info.processName, pkg.applicationInfo.uid);
5888                mActivities.addActivity(a, "activity");
5889                if ((parseFlags&PackageParser.PARSE_CHATTY) != 0) {
5890                    if (r == null) {
5891                        r = new StringBuilder(256);
5892                    } else {
5893                        r.append(' ');
5894                    }
5895                    r.append(a.info.name);
5896                }
5897            }
5898            if (r != null) {
5899                if (DEBUG_PACKAGE_SCANNING) Log.d(TAG, "  Activities: " + r);
5900            }
5901
5902            N = pkg.permissionGroups.size();
5903            r = null;
5904            for (i=0; i<N; i++) {
5905                PackageParser.PermissionGroup pg = pkg.permissionGroups.get(i);
5906                PackageParser.PermissionGroup cur = mPermissionGroups.get(pg.info.name);
5907                if (cur == null) {
5908                    mPermissionGroups.put(pg.info.name, pg);
5909                    if ((parseFlags&PackageParser.PARSE_CHATTY) != 0) {
5910                        if (r == null) {
5911                            r = new StringBuilder(256);
5912                        } else {
5913                            r.append(' ');
5914                        }
5915                        r.append(pg.info.name);
5916                    }
5917                } else {
5918                    Slog.w(TAG, "Permission group " + pg.info.name + " from package "
5919                            + pg.info.packageName + " ignored: original from "
5920                            + cur.info.packageName);
5921                    if ((parseFlags&PackageParser.PARSE_CHATTY) != 0) {
5922                        if (r == null) {
5923                            r = new StringBuilder(256);
5924                        } else {
5925                            r.append(' ');
5926                        }
5927                        r.append("DUP:");
5928                        r.append(pg.info.name);
5929                    }
5930                }
5931            }
5932            if (r != null) {
5933                if (DEBUG_PACKAGE_SCANNING) Log.d(TAG, "  Permission Groups: " + r);
5934            }
5935
5936            N = pkg.permissions.size();
5937            r = null;
5938            for (i=0; i<N; i++) {
5939                PackageParser.Permission p = pkg.permissions.get(i);
5940                ArrayMap<String, BasePermission> permissionMap =
5941                        p.tree ? mSettings.mPermissionTrees
5942                        : mSettings.mPermissions;
5943                p.group = mPermissionGroups.get(p.info.group);
5944                if (p.info.group == null || p.group != null) {
5945                    BasePermission bp = permissionMap.get(p.info.name);
5946
5947                    // Allow system apps to redefine non-system permissions
5948                    if (bp != null && !Objects.equals(bp.sourcePackage, p.info.packageName)) {
5949                        final boolean currentOwnerIsSystem = (bp.perm != null
5950                                && isSystemApp(bp.perm.owner));
5951                        if (isSystemApp(p.owner)) {
5952                            if (bp.type == BasePermission.TYPE_BUILTIN && bp.perm == null) {
5953                                // It's a built-in permission and no owner, take ownership now
5954                                bp.packageSetting = pkgSetting;
5955                                bp.perm = p;
5956                                bp.uid = pkg.applicationInfo.uid;
5957                                bp.sourcePackage = p.info.packageName;
5958                            } else if (!currentOwnerIsSystem) {
5959                                String msg = "New decl " + p.owner + " of permission  "
5960                                        + p.info.name + " is system; overriding " + bp.sourcePackage;
5961                                reportSettingsProblem(Log.WARN, msg);
5962                                bp = null;
5963                            }
5964                        }
5965                    }
5966
5967                    if (bp == null) {
5968                        bp = new BasePermission(p.info.name, p.info.packageName,
5969                                BasePermission.TYPE_NORMAL);
5970                        permissionMap.put(p.info.name, bp);
5971                    }
5972
5973                    if (bp.perm == null) {
5974                        if (bp.sourcePackage == null
5975                                || bp.sourcePackage.equals(p.info.packageName)) {
5976                            BasePermission tree = findPermissionTreeLP(p.info.name);
5977                            if (tree == null
5978                                    || tree.sourcePackage.equals(p.info.packageName)) {
5979                                bp.packageSetting = pkgSetting;
5980                                bp.perm = p;
5981                                bp.uid = pkg.applicationInfo.uid;
5982                                bp.sourcePackage = p.info.packageName;
5983                                if ((parseFlags&PackageParser.PARSE_CHATTY) != 0) {
5984                                    if (r == null) {
5985                                        r = new StringBuilder(256);
5986                                    } else {
5987                                        r.append(' ');
5988                                    }
5989                                    r.append(p.info.name);
5990                                }
5991                            } else {
5992                                Slog.w(TAG, "Permission " + p.info.name + " from package "
5993                                        + p.info.packageName + " ignored: base tree "
5994                                        + tree.name + " is from package "
5995                                        + tree.sourcePackage);
5996                            }
5997                        } else {
5998                            Slog.w(TAG, "Permission " + p.info.name + " from package "
5999                                    + p.info.packageName + " ignored: original from "
6000                                    + bp.sourcePackage);
6001                        }
6002                    } else if ((parseFlags&PackageParser.PARSE_CHATTY) != 0) {
6003                        if (r == null) {
6004                            r = new StringBuilder(256);
6005                        } else {
6006                            r.append(' ');
6007                        }
6008                        r.append("DUP:");
6009                        r.append(p.info.name);
6010                    }
6011                    if (bp.perm == p) {
6012                        bp.protectionLevel = p.info.protectionLevel;
6013                    }
6014                } else {
6015                    Slog.w(TAG, "Permission " + p.info.name + " from package "
6016                            + p.info.packageName + " ignored: no group "
6017                            + p.group);
6018                }
6019            }
6020            if (r != null) {
6021                if (DEBUG_PACKAGE_SCANNING) Log.d(TAG, "  Permissions: " + r);
6022            }
6023
6024            N = pkg.instrumentation.size();
6025            r = null;
6026            for (i=0; i<N; i++) {
6027                PackageParser.Instrumentation a = pkg.instrumentation.get(i);
6028                a.info.packageName = pkg.applicationInfo.packageName;
6029                a.info.sourceDir = pkg.applicationInfo.sourceDir;
6030                a.info.publicSourceDir = pkg.applicationInfo.publicSourceDir;
6031                a.info.splitSourceDirs = pkg.applicationInfo.splitSourceDirs;
6032                a.info.splitPublicSourceDirs = pkg.applicationInfo.splitPublicSourceDirs;
6033                a.info.dataDir = pkg.applicationInfo.dataDir;
6034
6035                // TODO: Update instrumentation.nativeLibraryDir as well ? Does it
6036                // need other information about the application, like the ABI and what not ?
6037                a.info.nativeLibraryDir = pkg.applicationInfo.nativeLibraryDir;
6038                mInstrumentation.put(a.getComponentName(), a);
6039                if ((parseFlags&PackageParser.PARSE_CHATTY) != 0) {
6040                    if (r == null) {
6041                        r = new StringBuilder(256);
6042                    } else {
6043                        r.append(' ');
6044                    }
6045                    r.append(a.info.name);
6046                }
6047            }
6048            if (r != null) {
6049                if (DEBUG_PACKAGE_SCANNING) Log.d(TAG, "  Instrumentation: " + r);
6050            }
6051
6052            if (pkg.protectedBroadcasts != null) {
6053                N = pkg.protectedBroadcasts.size();
6054                for (i=0; i<N; i++) {
6055                    mProtectedBroadcasts.add(pkg.protectedBroadcasts.get(i));
6056                }
6057            }
6058
6059            pkgSetting.setTimeStamp(scanFileTime);
6060
6061            // Create idmap files for pairs of (packages, overlay packages).
6062            // Note: "android", ie framework-res.apk, is handled by native layers.
6063            if (pkg.mOverlayTarget != null) {
6064                // This is an overlay package.
6065                if (pkg.mOverlayTarget != null && !pkg.mOverlayTarget.equals("android")) {
6066                    if (!mOverlays.containsKey(pkg.mOverlayTarget)) {
6067                        mOverlays.put(pkg.mOverlayTarget,
6068                                new ArrayMap<String, PackageParser.Package>());
6069                    }
6070                    ArrayMap<String, PackageParser.Package> map = mOverlays.get(pkg.mOverlayTarget);
6071                    map.put(pkg.packageName, pkg);
6072                    PackageParser.Package orig = mPackages.get(pkg.mOverlayTarget);
6073                    if (orig != null && !createIdmapForPackagePairLI(orig, pkg)) {
6074                        throw new PackageManagerException(INSTALL_FAILED_UPDATE_INCOMPATIBLE,
6075                                "scanPackageLI failed to createIdmap");
6076                    }
6077                }
6078            } else if (mOverlays.containsKey(pkg.packageName) &&
6079                    !pkg.packageName.equals("android")) {
6080                // This is a regular package, with one or more known overlay packages.
6081                createIdmapsForPackageLI(pkg);
6082            }
6083        }
6084
6085        return pkg;
6086    }
6087
6088    /**
6089     * Derive the ABI of a non-system package located at {@code scanFile}. This information
6090     * is derived purely on the basis of the contents of {@code scanFile} and
6091     * {@code cpuAbiOverride}.
6092     *
6093     * If {@code extractLibs} is true, native libraries are extracted from the app if required.
6094     */
6095    public void deriveNonSystemPackageAbi(PackageParser.Package pkg, File scanFile,
6096                                          String cpuAbiOverride, boolean extractLibs)
6097            throws PackageManagerException {
6098        // TODO: We can probably be smarter about this stuff. For installed apps,
6099        // we can calculate this information at install time once and for all. For
6100        // system apps, we can probably assume that this information doesn't change
6101        // after the first boot scan. As things stand, we do lots of unnecessary work.
6102
6103        // Give ourselves some initial paths; we'll come back for another
6104        // pass once we've determined ABI below.
6105        setNativeLibraryPaths(pkg);
6106
6107        // We would never need to extract libs for forward-locked and external packages,
6108        // since the container service will do it for us.
6109        if (pkg.isForwardLocked() || isExternal(pkg)) {
6110            extractLibs = false;
6111        }
6112
6113        final String nativeLibraryRootStr = pkg.applicationInfo.nativeLibraryRootDir;
6114        final boolean useIsaSpecificSubdirs = pkg.applicationInfo.nativeLibraryRootRequiresIsa;
6115
6116        NativeLibraryHelper.Handle handle = null;
6117        try {
6118            handle = NativeLibraryHelper.Handle.create(scanFile);
6119            // TODO(multiArch): This can be null for apps that didn't go through the
6120            // usual installation process. We can calculate it again, like we
6121            // do during install time.
6122            //
6123            // TODO(multiArch): Why do we need to rescan ASEC apps again ? It seems totally
6124            // unnecessary.
6125            final File nativeLibraryRoot = new File(nativeLibraryRootStr);
6126
6127            // Null out the abis so that they can be recalculated.
6128            pkg.applicationInfo.primaryCpuAbi = null;
6129            pkg.applicationInfo.secondaryCpuAbi = null;
6130            if (isMultiArch(pkg.applicationInfo)) {
6131                // Warn if we've set an abiOverride for multi-lib packages..
6132                // By definition, we need to copy both 32 and 64 bit libraries for
6133                // such packages.
6134                if (pkg.cpuAbiOverride != null
6135                        && !NativeLibraryHelper.CLEAR_ABI_OVERRIDE.equals(pkg.cpuAbiOverride)) {
6136                    Slog.w(TAG, "Ignoring abiOverride for multi arch application.");
6137                }
6138
6139                int abi32 = PackageManager.NO_NATIVE_LIBRARIES;
6140                int abi64 = PackageManager.NO_NATIVE_LIBRARIES;
6141                if (Build.SUPPORTED_32_BIT_ABIS.length > 0) {
6142                    if (extractLibs) {
6143                        abi32 = NativeLibraryHelper.copyNativeBinariesForSupportedAbi(handle,
6144                                nativeLibraryRoot, Build.SUPPORTED_32_BIT_ABIS,
6145                                useIsaSpecificSubdirs);
6146                    } else {
6147                        abi32 = NativeLibraryHelper.findSupportedAbi(handle, Build.SUPPORTED_32_BIT_ABIS);
6148                    }
6149                }
6150
6151                maybeThrowExceptionForMultiArchCopy(
6152                        "Error unpackaging 32 bit native libs for multiarch app.", abi32);
6153
6154                if (Build.SUPPORTED_64_BIT_ABIS.length > 0) {
6155                    if (extractLibs) {
6156                        abi64 = NativeLibraryHelper.copyNativeBinariesForSupportedAbi(handle,
6157                                nativeLibraryRoot, Build.SUPPORTED_64_BIT_ABIS,
6158                                useIsaSpecificSubdirs);
6159                    } else {
6160                        abi64 = NativeLibraryHelper.findSupportedAbi(handle, Build.SUPPORTED_64_BIT_ABIS);
6161                    }
6162                }
6163
6164                maybeThrowExceptionForMultiArchCopy(
6165                        "Error unpackaging 64 bit native libs for multiarch app.", abi64);
6166
6167                if (abi64 >= 0) {
6168                    pkg.applicationInfo.primaryCpuAbi = Build.SUPPORTED_64_BIT_ABIS[abi64];
6169                }
6170
6171                if (abi32 >= 0) {
6172                    final String abi = Build.SUPPORTED_32_BIT_ABIS[abi32];
6173                    if (abi64 >= 0) {
6174                        pkg.applicationInfo.secondaryCpuAbi = abi;
6175                    } else {
6176                        pkg.applicationInfo.primaryCpuAbi = abi;
6177                    }
6178                }
6179            } else {
6180                String[] abiList = (cpuAbiOverride != null) ?
6181                        new String[] { cpuAbiOverride } : Build.SUPPORTED_ABIS;
6182
6183                // Enable gross and lame hacks for apps that are built with old
6184                // SDK tools. We must scan their APKs for renderscript bitcode and
6185                // not launch them if it's present. Don't bother checking on devices
6186                // that don't have 64 bit support.
6187                boolean needsRenderScriptOverride = false;
6188                if (Build.SUPPORTED_64_BIT_ABIS.length > 0 && cpuAbiOverride == null &&
6189                        NativeLibraryHelper.hasRenderscriptBitcode(handle)) {
6190                    abiList = Build.SUPPORTED_32_BIT_ABIS;
6191                    needsRenderScriptOverride = true;
6192                }
6193
6194                final int copyRet;
6195                if (extractLibs) {
6196                    copyRet = NativeLibraryHelper.copyNativeBinariesForSupportedAbi(handle,
6197                            nativeLibraryRoot, abiList, useIsaSpecificSubdirs);
6198                } else {
6199                    copyRet = NativeLibraryHelper.findSupportedAbi(handle, abiList);
6200                }
6201
6202                if (copyRet < 0 && copyRet != PackageManager.NO_NATIVE_LIBRARIES) {
6203                    throw new PackageManagerException(INSTALL_FAILED_INTERNAL_ERROR,
6204                            "Error unpackaging native libs for app, errorCode=" + copyRet);
6205                }
6206
6207                if (copyRet >= 0) {
6208                    pkg.applicationInfo.primaryCpuAbi = abiList[copyRet];
6209                } else if (copyRet == PackageManager.NO_NATIVE_LIBRARIES && cpuAbiOverride != null) {
6210                    pkg.applicationInfo.primaryCpuAbi = cpuAbiOverride;
6211                } else if (needsRenderScriptOverride) {
6212                    pkg.applicationInfo.primaryCpuAbi = abiList[0];
6213                }
6214            }
6215        } catch (IOException ioe) {
6216            Slog.e(TAG, "Unable to get canonical file " + ioe.toString());
6217        } finally {
6218            IoUtils.closeQuietly(handle);
6219        }
6220
6221        // Now that we've calculated the ABIs and determined if it's an internal app,
6222        // we will go ahead and populate the nativeLibraryPath.
6223        setNativeLibraryPaths(pkg);
6224    }
6225
6226    /**
6227     * Adjusts ABIs for a set of packages belonging to a shared user so that they all match.
6228     * i.e, so that all packages can be run inside a single process if required.
6229     *
6230     * Optionally, callers can pass in a parsed package via {@code newPackage} in which case
6231     * this function will either try and make the ABI for all packages in {@code packagesForUser}
6232     * match {@code scannedPackage} or will update the ABI of {@code scannedPackage} to match
6233     * the ABI selected for {@code packagesForUser}. This variant is used when installing or
6234     * updating a package that belongs to a shared user.
6235     *
6236     * NOTE: We currently only match for the primary CPU abi string. Matching the secondary
6237     * adds unnecessary complexity.
6238     */
6239    private void adjustCpuAbisForSharedUserLPw(Set<PackageSetting> packagesForUser,
6240            PackageParser.Package scannedPackage, boolean forceDexOpt, boolean deferDexOpt,
6241            boolean bootComplete) {
6242        String requiredInstructionSet = null;
6243        if (scannedPackage != null && scannedPackage.applicationInfo.primaryCpuAbi != null) {
6244            requiredInstructionSet = VMRuntime.getInstructionSet(
6245                     scannedPackage.applicationInfo.primaryCpuAbi);
6246        }
6247
6248        PackageSetting requirer = null;
6249        for (PackageSetting ps : packagesForUser) {
6250            // If packagesForUser contains scannedPackage, we skip it. This will happen
6251            // when scannedPackage is an update of an existing package. Without this check,
6252            // we will never be able to change the ABI of any package belonging to a shared
6253            // user, even if it's compatible with other packages.
6254            if (scannedPackage == null || !scannedPackage.packageName.equals(ps.name)) {
6255                if (ps.primaryCpuAbiString == null) {
6256                    continue;
6257                }
6258
6259                final String instructionSet = VMRuntime.getInstructionSet(ps.primaryCpuAbiString);
6260                if (requiredInstructionSet != null && !instructionSet.equals(requiredInstructionSet)) {
6261                    // We have a mismatch between instruction sets (say arm vs arm64) warn about
6262                    // this but there's not much we can do.
6263                    String errorMessage = "Instruction set mismatch, "
6264                            + ((requirer == null) ? "[caller]" : requirer)
6265                            + " requires " + requiredInstructionSet + " whereas " + ps
6266                            + " requires " + instructionSet;
6267                    Slog.w(TAG, errorMessage);
6268                }
6269
6270                if (requiredInstructionSet == null) {
6271                    requiredInstructionSet = instructionSet;
6272                    requirer = ps;
6273                }
6274            }
6275        }
6276
6277        if (requiredInstructionSet != null) {
6278            String adjustedAbi;
6279            if (requirer != null) {
6280                // requirer != null implies that either scannedPackage was null or that scannedPackage
6281                // did not require an ABI, in which case we have to adjust scannedPackage to match
6282                // the ABI of the set (which is the same as requirer's ABI)
6283                adjustedAbi = requirer.primaryCpuAbiString;
6284                if (scannedPackage != null) {
6285                    scannedPackage.applicationInfo.primaryCpuAbi = adjustedAbi;
6286                }
6287            } else {
6288                // requirer == null implies that we're updating all ABIs in the set to
6289                // match scannedPackage.
6290                adjustedAbi =  scannedPackage.applicationInfo.primaryCpuAbi;
6291            }
6292
6293            for (PackageSetting ps : packagesForUser) {
6294                if (scannedPackage == null || !scannedPackage.packageName.equals(ps.name)) {
6295                    if (ps.primaryCpuAbiString != null) {
6296                        continue;
6297                    }
6298
6299                    ps.primaryCpuAbiString = adjustedAbi;
6300                    if (ps.pkg != null && ps.pkg.applicationInfo != null) {
6301                        ps.pkg.applicationInfo.primaryCpuAbi = adjustedAbi;
6302                        Slog.i(TAG, "Adjusting ABI for : " + ps.name + " to " + adjustedAbi);
6303
6304                        int result = mPackageDexOptimizer.performDexOpt(ps.pkg,
6305                                null /* instruction sets */, forceDexOpt, deferDexOpt, true,
6306                                bootComplete);
6307                        if (result == PackageDexOptimizer.DEX_OPT_FAILED) {
6308                            ps.primaryCpuAbiString = null;
6309                            ps.pkg.applicationInfo.primaryCpuAbi = null;
6310                            return;
6311                        } else {
6312                            mInstaller.rmdex(ps.codePathString,
6313                                    getDexCodeInstructionSet(getPreferredInstructionSet()));
6314                        }
6315                    }
6316                }
6317            }
6318        }
6319    }
6320
6321    private void setUpCustomResolverActivity(PackageParser.Package pkg) {
6322        synchronized (mPackages) {
6323            mResolverReplaced = true;
6324            // Set up information for custom user intent resolution activity.
6325            mResolveActivity.applicationInfo = pkg.applicationInfo;
6326            mResolveActivity.name = mCustomResolverComponentName.getClassName();
6327            mResolveActivity.packageName = pkg.applicationInfo.packageName;
6328            mResolveActivity.processName = pkg.applicationInfo.packageName;
6329            mResolveActivity.launchMode = ActivityInfo.LAUNCH_MULTIPLE;
6330            mResolveActivity.flags = ActivityInfo.FLAG_EXCLUDE_FROM_RECENTS |
6331                    ActivityInfo.FLAG_FINISH_ON_CLOSE_SYSTEM_DIALOGS;
6332            mResolveActivity.theme = 0;
6333            mResolveActivity.exported = true;
6334            mResolveActivity.enabled = true;
6335            mResolveInfo.activityInfo = mResolveActivity;
6336            mResolveInfo.priority = 0;
6337            mResolveInfo.preferredOrder = 0;
6338            mResolveInfo.match = 0;
6339            mResolveComponentName = mCustomResolverComponentName;
6340            Slog.i(TAG, "Replacing default ResolverActivity with custom activity: " +
6341                    mResolveComponentName);
6342        }
6343    }
6344
6345    private static String calculateBundledApkRoot(final String codePathString) {
6346        final File codePath = new File(codePathString);
6347        final File codeRoot;
6348        if (FileUtils.contains(Environment.getRootDirectory(), codePath)) {
6349            codeRoot = Environment.getRootDirectory();
6350        } else if (FileUtils.contains(Environment.getOemDirectory(), codePath)) {
6351            codeRoot = Environment.getOemDirectory();
6352        } else if (FileUtils.contains(Environment.getVendorDirectory(), codePath)) {
6353            codeRoot = Environment.getVendorDirectory();
6354        } else {
6355            // Unrecognized code path; take its top real segment as the apk root:
6356            // e.g. /something/app/blah.apk => /something
6357            try {
6358                File f = codePath.getCanonicalFile();
6359                File parent = f.getParentFile();    // non-null because codePath is a file
6360                File tmp;
6361                while ((tmp = parent.getParentFile()) != null) {
6362                    f = parent;
6363                    parent = tmp;
6364                }
6365                codeRoot = f;
6366                Slog.w(TAG, "Unrecognized code path "
6367                        + codePath + " - using " + codeRoot);
6368            } catch (IOException e) {
6369                // Can't canonicalize the code path -- shenanigans?
6370                Slog.w(TAG, "Can't canonicalize code path " + codePath);
6371                return Environment.getRootDirectory().getPath();
6372            }
6373        }
6374        return codeRoot.getPath();
6375    }
6376
6377    /**
6378     * Derive and set the location of native libraries for the given package,
6379     * which varies depending on where and how the package was installed.
6380     */
6381    private void setNativeLibraryPaths(PackageParser.Package pkg) {
6382        final ApplicationInfo info = pkg.applicationInfo;
6383        final String codePath = pkg.codePath;
6384        final File codeFile = new File(codePath);
6385        final boolean bundledApp = info.isSystemApp() && !info.isUpdatedSystemApp();
6386        final boolean asecApp = info.isForwardLocked() || isExternal(info);
6387
6388        info.nativeLibraryRootDir = null;
6389        info.nativeLibraryRootRequiresIsa = false;
6390        info.nativeLibraryDir = null;
6391        info.secondaryNativeLibraryDir = null;
6392
6393        if (isApkFile(codeFile)) {
6394            // Monolithic install
6395            if (bundledApp) {
6396                // If "/system/lib64/apkname" exists, assume that is the per-package
6397                // native library directory to use; otherwise use "/system/lib/apkname".
6398                final String apkRoot = calculateBundledApkRoot(info.sourceDir);
6399                final boolean is64Bit = VMRuntime.is64BitInstructionSet(
6400                        getPrimaryInstructionSet(info));
6401
6402                // This is a bundled system app so choose the path based on the ABI.
6403                // if it's a 64 bit abi, use lib64 otherwise use lib32. Note that this
6404                // is just the default path.
6405                final String apkName = deriveCodePathName(codePath);
6406                final String libDir = is64Bit ? LIB64_DIR_NAME : LIB_DIR_NAME;
6407                info.nativeLibraryRootDir = Environment.buildPath(new File(apkRoot), libDir,
6408                        apkName).getAbsolutePath();
6409
6410                if (info.secondaryCpuAbi != null) {
6411                    final String secondaryLibDir = is64Bit ? LIB_DIR_NAME : LIB64_DIR_NAME;
6412                    info.secondaryNativeLibraryDir = Environment.buildPath(new File(apkRoot),
6413                            secondaryLibDir, apkName).getAbsolutePath();
6414                }
6415            } else if (asecApp) {
6416                info.nativeLibraryRootDir = new File(codeFile.getParentFile(), LIB_DIR_NAME)
6417                        .getAbsolutePath();
6418            } else {
6419                final String apkName = deriveCodePathName(codePath);
6420                info.nativeLibraryRootDir = new File(mAppLib32InstallDir, apkName)
6421                        .getAbsolutePath();
6422            }
6423
6424            info.nativeLibraryRootRequiresIsa = false;
6425            info.nativeLibraryDir = info.nativeLibraryRootDir;
6426        } else {
6427            // Cluster install
6428            info.nativeLibraryRootDir = new File(codeFile, LIB_DIR_NAME).getAbsolutePath();
6429            info.nativeLibraryRootRequiresIsa = true;
6430
6431            info.nativeLibraryDir = new File(info.nativeLibraryRootDir,
6432                    getPrimaryInstructionSet(info)).getAbsolutePath();
6433
6434            if (info.secondaryCpuAbi != null) {
6435                info.secondaryNativeLibraryDir = new File(info.nativeLibraryRootDir,
6436                        VMRuntime.getInstructionSet(info.secondaryCpuAbi)).getAbsolutePath();
6437            }
6438        }
6439    }
6440
6441    /**
6442     * Calculate the abis and roots for a bundled app. These can uniquely
6443     * be determined from the contents of the system partition, i.e whether
6444     * it contains 64 or 32 bit shared libraries etc. We do not validate any
6445     * of this information, and instead assume that the system was built
6446     * sensibly.
6447     */
6448    private void setBundledAppAbisAndRoots(PackageParser.Package pkg,
6449                                           PackageSetting pkgSetting) {
6450        final String apkName = deriveCodePathName(pkg.applicationInfo.getCodePath());
6451
6452        // If "/system/lib64/apkname" exists, assume that is the per-package
6453        // native library directory to use; otherwise use "/system/lib/apkname".
6454        final String apkRoot = calculateBundledApkRoot(pkg.applicationInfo.sourceDir);
6455        setBundledAppAbi(pkg, apkRoot, apkName);
6456        // pkgSetting might be null during rescan following uninstall of updates
6457        // to a bundled app, so accommodate that possibility.  The settings in
6458        // that case will be established later from the parsed package.
6459        //
6460        // If the settings aren't null, sync them up with what we've just derived.
6461        // note that apkRoot isn't stored in the package settings.
6462        if (pkgSetting != null) {
6463            pkgSetting.primaryCpuAbiString = pkg.applicationInfo.primaryCpuAbi;
6464            pkgSetting.secondaryCpuAbiString = pkg.applicationInfo.secondaryCpuAbi;
6465        }
6466    }
6467
6468    /**
6469     * Deduces the ABI of a bundled app and sets the relevant fields on the
6470     * parsed pkg object.
6471     *
6472     * @param apkRoot the root of the installed apk, something like {@code /system} or {@code /oem}
6473     *        under which system libraries are installed.
6474     * @param apkName the name of the installed package.
6475     */
6476    private static void setBundledAppAbi(PackageParser.Package pkg, String apkRoot, String apkName) {
6477        final File codeFile = new File(pkg.codePath);
6478
6479        final boolean has64BitLibs;
6480        final boolean has32BitLibs;
6481        if (isApkFile(codeFile)) {
6482            // Monolithic install
6483            has64BitLibs = (new File(apkRoot, new File(LIB64_DIR_NAME, apkName).getPath())).exists();
6484            has32BitLibs = (new File(apkRoot, new File(LIB_DIR_NAME, apkName).getPath())).exists();
6485        } else {
6486            // Cluster install
6487            final File rootDir = new File(codeFile, LIB_DIR_NAME);
6488            if (!ArrayUtils.isEmpty(Build.SUPPORTED_64_BIT_ABIS)
6489                    && !TextUtils.isEmpty(Build.SUPPORTED_64_BIT_ABIS[0])) {
6490                final String isa = VMRuntime.getInstructionSet(Build.SUPPORTED_64_BIT_ABIS[0]);
6491                has64BitLibs = (new File(rootDir, isa)).exists();
6492            } else {
6493                has64BitLibs = false;
6494            }
6495            if (!ArrayUtils.isEmpty(Build.SUPPORTED_32_BIT_ABIS)
6496                    && !TextUtils.isEmpty(Build.SUPPORTED_32_BIT_ABIS[0])) {
6497                final String isa = VMRuntime.getInstructionSet(Build.SUPPORTED_32_BIT_ABIS[0]);
6498                has32BitLibs = (new File(rootDir, isa)).exists();
6499            } else {
6500                has32BitLibs = false;
6501            }
6502        }
6503
6504        if (has64BitLibs && !has32BitLibs) {
6505            // The package has 64 bit libs, but not 32 bit libs. Its primary
6506            // ABI should be 64 bit. We can safely assume here that the bundled
6507            // native libraries correspond to the most preferred ABI in the list.
6508
6509            pkg.applicationInfo.primaryCpuAbi = Build.SUPPORTED_64_BIT_ABIS[0];
6510            pkg.applicationInfo.secondaryCpuAbi = null;
6511        } else if (has32BitLibs && !has64BitLibs) {
6512            // The package has 32 bit libs but not 64 bit libs. Its primary
6513            // ABI should be 32 bit.
6514
6515            pkg.applicationInfo.primaryCpuAbi = Build.SUPPORTED_32_BIT_ABIS[0];
6516            pkg.applicationInfo.secondaryCpuAbi = null;
6517        } else if (has32BitLibs && has64BitLibs) {
6518            // The application has both 64 and 32 bit bundled libraries. We check
6519            // here that the app declares multiArch support, and warn if it doesn't.
6520            //
6521            // We will be lenient here and record both ABIs. The primary will be the
6522            // ABI that's higher on the list, i.e, a device that's configured to prefer
6523            // 64 bit apps will see a 64 bit primary ABI,
6524
6525            if ((pkg.applicationInfo.flags & ApplicationInfo.FLAG_MULTIARCH) == 0) {
6526                Slog.e(TAG, "Package: " + pkg + " has multiple bundled libs, but is not multiarch.");
6527            }
6528
6529            if (VMRuntime.is64BitInstructionSet(getPreferredInstructionSet())) {
6530                pkg.applicationInfo.primaryCpuAbi = Build.SUPPORTED_64_BIT_ABIS[0];
6531                pkg.applicationInfo.secondaryCpuAbi = Build.SUPPORTED_32_BIT_ABIS[0];
6532            } else {
6533                pkg.applicationInfo.primaryCpuAbi = Build.SUPPORTED_32_BIT_ABIS[0];
6534                pkg.applicationInfo.secondaryCpuAbi = Build.SUPPORTED_64_BIT_ABIS[0];
6535            }
6536        } else {
6537            pkg.applicationInfo.primaryCpuAbi = null;
6538            pkg.applicationInfo.secondaryCpuAbi = null;
6539        }
6540    }
6541
6542    private void killApplication(String pkgName, int appId, String reason) {
6543        // Request the ActivityManager to kill the process(only for existing packages)
6544        // so that we do not end up in a confused state while the user is still using the older
6545        // version of the application while the new one gets installed.
6546        IActivityManager am = ActivityManagerNative.getDefault();
6547        if (am != null) {
6548            try {
6549                am.killApplicationWithAppId(pkgName, appId, reason);
6550            } catch (RemoteException e) {
6551            }
6552        }
6553    }
6554
6555    void removePackageLI(PackageSetting ps, boolean chatty) {
6556        if (DEBUG_INSTALL) {
6557            if (chatty)
6558                Log.d(TAG, "Removing package " + ps.name);
6559        }
6560
6561        // writer
6562        synchronized (mPackages) {
6563            mPackages.remove(ps.name);
6564            final PackageParser.Package pkg = ps.pkg;
6565            if (pkg != null) {
6566                cleanPackageDataStructuresLILPw(pkg, chatty);
6567            }
6568        }
6569    }
6570
6571    void removeInstalledPackageLI(PackageParser.Package pkg, boolean chatty) {
6572        if (DEBUG_INSTALL) {
6573            if (chatty)
6574                Log.d(TAG, "Removing package " + pkg.applicationInfo.packageName);
6575        }
6576
6577        // writer
6578        synchronized (mPackages) {
6579            mPackages.remove(pkg.applicationInfo.packageName);
6580            cleanPackageDataStructuresLILPw(pkg, chatty);
6581        }
6582    }
6583
6584    void cleanPackageDataStructuresLILPw(PackageParser.Package pkg, boolean chatty) {
6585        int N = pkg.providers.size();
6586        StringBuilder r = null;
6587        int i;
6588        for (i=0; i<N; i++) {
6589            PackageParser.Provider p = pkg.providers.get(i);
6590            mProviders.removeProvider(p);
6591            if (p.info.authority == null) {
6592
6593                /* There was another ContentProvider with this authority when
6594                 * this app was installed so this authority is null,
6595                 * Ignore it as we don't have to unregister the provider.
6596                 */
6597                continue;
6598            }
6599            String names[] = p.info.authority.split(";");
6600            for (int j = 0; j < names.length; j++) {
6601                if (mProvidersByAuthority.get(names[j]) == p) {
6602                    mProvidersByAuthority.remove(names[j]);
6603                    if (DEBUG_REMOVE) {
6604                        if (chatty)
6605                            Log.d(TAG, "Unregistered content provider: " + names[j]
6606                                    + ", className = " + p.info.name + ", isSyncable = "
6607                                    + p.info.isSyncable);
6608                    }
6609                }
6610            }
6611            if (DEBUG_REMOVE && chatty) {
6612                if (r == null) {
6613                    r = new StringBuilder(256);
6614                } else {
6615                    r.append(' ');
6616                }
6617                r.append(p.info.name);
6618            }
6619        }
6620        if (r != null) {
6621            if (DEBUG_REMOVE) Log.d(TAG, "  Providers: " + r);
6622        }
6623
6624        N = pkg.services.size();
6625        r = null;
6626        for (i=0; i<N; i++) {
6627            PackageParser.Service s = pkg.services.get(i);
6628            mServices.removeService(s);
6629            if (chatty) {
6630                if (r == null) {
6631                    r = new StringBuilder(256);
6632                } else {
6633                    r.append(' ');
6634                }
6635                r.append(s.info.name);
6636            }
6637        }
6638        if (r != null) {
6639            if (DEBUG_REMOVE) Log.d(TAG, "  Services: " + r);
6640        }
6641
6642        N = pkg.receivers.size();
6643        r = null;
6644        for (i=0; i<N; i++) {
6645            PackageParser.Activity a = pkg.receivers.get(i);
6646            mReceivers.removeActivity(a, "receiver");
6647            if (DEBUG_REMOVE && chatty) {
6648                if (r == null) {
6649                    r = new StringBuilder(256);
6650                } else {
6651                    r.append(' ');
6652                }
6653                r.append(a.info.name);
6654            }
6655        }
6656        if (r != null) {
6657            if (DEBUG_REMOVE) Log.d(TAG, "  Receivers: " + r);
6658        }
6659
6660        N = pkg.activities.size();
6661        r = null;
6662        for (i=0; i<N; i++) {
6663            PackageParser.Activity a = pkg.activities.get(i);
6664            mActivities.removeActivity(a, "activity");
6665            if (DEBUG_REMOVE && chatty) {
6666                if (r == null) {
6667                    r = new StringBuilder(256);
6668                } else {
6669                    r.append(' ');
6670                }
6671                r.append(a.info.name);
6672            }
6673        }
6674        if (r != null) {
6675            if (DEBUG_REMOVE) Log.d(TAG, "  Activities: " + r);
6676        }
6677
6678        N = pkg.permissions.size();
6679        r = null;
6680        for (i=0; i<N; i++) {
6681            PackageParser.Permission p = pkg.permissions.get(i);
6682            BasePermission bp = mSettings.mPermissions.get(p.info.name);
6683            if (bp == null) {
6684                bp = mSettings.mPermissionTrees.get(p.info.name);
6685            }
6686            if (bp != null && bp.perm == p) {
6687                bp.perm = null;
6688                if (DEBUG_REMOVE && chatty) {
6689                    if (r == null) {
6690                        r = new StringBuilder(256);
6691                    } else {
6692                        r.append(' ');
6693                    }
6694                    r.append(p.info.name);
6695                }
6696            }
6697            if ((p.info.protectionLevel&PermissionInfo.PROTECTION_FLAG_APPOP) != 0) {
6698                ArraySet<String> appOpPerms = mAppOpPermissionPackages.get(p.info.name);
6699                if (appOpPerms != null) {
6700                    appOpPerms.remove(pkg.packageName);
6701                }
6702            }
6703        }
6704        if (r != null) {
6705            if (DEBUG_REMOVE) Log.d(TAG, "  Permissions: " + r);
6706        }
6707
6708        N = pkg.requestedPermissions.size();
6709        r = null;
6710        for (i=0; i<N; i++) {
6711            String perm = pkg.requestedPermissions.get(i);
6712            BasePermission bp = mSettings.mPermissions.get(perm);
6713            if (bp != null && (bp.protectionLevel&PermissionInfo.PROTECTION_FLAG_APPOP) != 0) {
6714                ArraySet<String> appOpPerms = mAppOpPermissionPackages.get(perm);
6715                if (appOpPerms != null) {
6716                    appOpPerms.remove(pkg.packageName);
6717                    if (appOpPerms.isEmpty()) {
6718                        mAppOpPermissionPackages.remove(perm);
6719                    }
6720                }
6721            }
6722        }
6723        if (r != null) {
6724            if (DEBUG_REMOVE) Log.d(TAG, "  Permissions: " + r);
6725        }
6726
6727        N = pkg.instrumentation.size();
6728        r = null;
6729        for (i=0; i<N; i++) {
6730            PackageParser.Instrumentation a = pkg.instrumentation.get(i);
6731            mInstrumentation.remove(a.getComponentName());
6732            if (DEBUG_REMOVE && chatty) {
6733                if (r == null) {
6734                    r = new StringBuilder(256);
6735                } else {
6736                    r.append(' ');
6737                }
6738                r.append(a.info.name);
6739            }
6740        }
6741        if (r != null) {
6742            if (DEBUG_REMOVE) Log.d(TAG, "  Instrumentation: " + r);
6743        }
6744
6745        r = null;
6746        if ((pkg.applicationInfo.flags&ApplicationInfo.FLAG_SYSTEM) != 0) {
6747            // Only system apps can hold shared libraries.
6748            if (pkg.libraryNames != null) {
6749                for (i=0; i<pkg.libraryNames.size(); i++) {
6750                    String name = pkg.libraryNames.get(i);
6751                    SharedLibraryEntry cur = mSharedLibraries.get(name);
6752                    if (cur != null && cur.apk != null && cur.apk.equals(pkg.packageName)) {
6753                        mSharedLibraries.remove(name);
6754                        if (DEBUG_REMOVE && chatty) {
6755                            if (r == null) {
6756                                r = new StringBuilder(256);
6757                            } else {
6758                                r.append(' ');
6759                            }
6760                            r.append(name);
6761                        }
6762                    }
6763                }
6764            }
6765        }
6766        if (r != null) {
6767            if (DEBUG_REMOVE) Log.d(TAG, "  Libraries: " + r);
6768        }
6769    }
6770
6771    private static boolean hasPermission(PackageParser.Package pkgInfo, String perm) {
6772        for (int i=pkgInfo.permissions.size()-1; i>=0; i--) {
6773            if (pkgInfo.permissions.get(i).info.name.equals(perm)) {
6774                return true;
6775            }
6776        }
6777        return false;
6778    }
6779
6780    static final int UPDATE_PERMISSIONS_ALL = 1<<0;
6781    static final int UPDATE_PERMISSIONS_REPLACE_PKG = 1<<1;
6782    static final int UPDATE_PERMISSIONS_REPLACE_ALL = 1<<2;
6783
6784    private void updatePermissionsLPw(String changingPkg,
6785            PackageParser.Package pkgInfo, int flags) {
6786        // Make sure there are no dangling permission trees.
6787        Iterator<BasePermission> it = mSettings.mPermissionTrees.values().iterator();
6788        while (it.hasNext()) {
6789            final BasePermission bp = it.next();
6790            if (bp.packageSetting == null) {
6791                // We may not yet have parsed the package, so just see if
6792                // we still know about its settings.
6793                bp.packageSetting = mSettings.mPackages.get(bp.sourcePackage);
6794            }
6795            if (bp.packageSetting == null) {
6796                Slog.w(TAG, "Removing dangling permission tree: " + bp.name
6797                        + " from package " + bp.sourcePackage);
6798                it.remove();
6799            } else if (changingPkg != null && changingPkg.equals(bp.sourcePackage)) {
6800                if (pkgInfo == null || !hasPermission(pkgInfo, bp.name)) {
6801                    Slog.i(TAG, "Removing old permission tree: " + bp.name
6802                            + " from package " + bp.sourcePackage);
6803                    flags |= UPDATE_PERMISSIONS_ALL;
6804                    it.remove();
6805                }
6806            }
6807        }
6808
6809        // Make sure all dynamic permissions have been assigned to a package,
6810        // and make sure there are no dangling permissions.
6811        it = mSettings.mPermissions.values().iterator();
6812        while (it.hasNext()) {
6813            final BasePermission bp = it.next();
6814            if (bp.type == BasePermission.TYPE_DYNAMIC) {
6815                if (DEBUG_SETTINGS) Log.v(TAG, "Dynamic permission: name="
6816                        + bp.name + " pkg=" + bp.sourcePackage
6817                        + " info=" + bp.pendingInfo);
6818                if (bp.packageSetting == null && bp.pendingInfo != null) {
6819                    final BasePermission tree = findPermissionTreeLP(bp.name);
6820                    if (tree != null && tree.perm != null) {
6821                        bp.packageSetting = tree.packageSetting;
6822                        bp.perm = new PackageParser.Permission(tree.perm.owner,
6823                                new PermissionInfo(bp.pendingInfo));
6824                        bp.perm.info.packageName = tree.perm.info.packageName;
6825                        bp.perm.info.name = bp.name;
6826                        bp.uid = tree.uid;
6827                    }
6828                }
6829            }
6830            if (bp.packageSetting == null) {
6831                // We may not yet have parsed the package, so just see if
6832                // we still know about its settings.
6833                bp.packageSetting = mSettings.mPackages.get(bp.sourcePackage);
6834            }
6835            if (bp.packageSetting == null) {
6836                Slog.w(TAG, "Removing dangling permission: " + bp.name
6837                        + " from package " + bp.sourcePackage);
6838                it.remove();
6839            } else if (changingPkg != null && changingPkg.equals(bp.sourcePackage)) {
6840                if (pkgInfo == null || !hasPermission(pkgInfo, bp.name)) {
6841                    Slog.i(TAG, "Removing old permission: " + bp.name
6842                            + " from package " + bp.sourcePackage);
6843                    flags |= UPDATE_PERMISSIONS_ALL;
6844                    it.remove();
6845                }
6846            }
6847        }
6848
6849        // Now update the permissions for all packages, in particular
6850        // replace the granted permissions of the system packages.
6851        if ((flags&UPDATE_PERMISSIONS_ALL) != 0) {
6852            for (PackageParser.Package pkg : mPackages.values()) {
6853                if (pkg != pkgInfo) {
6854                    grantPermissionsLPw(pkg, (flags&UPDATE_PERMISSIONS_REPLACE_ALL) != 0,
6855                            changingPkg);
6856                }
6857            }
6858        }
6859
6860        if (pkgInfo != null) {
6861            grantPermissionsLPw(pkgInfo, (flags&UPDATE_PERMISSIONS_REPLACE_PKG) != 0, changingPkg);
6862        }
6863    }
6864
6865    private void grantPermissionsLPw(PackageParser.Package pkg, boolean replace,
6866            String packageOfInterest) {
6867        final PackageSetting ps = (PackageSetting) pkg.mExtras;
6868        if (ps == null) {
6869            return;
6870        }
6871        final GrantedPermissions gp = ps.sharedUser != null ? ps.sharedUser : ps;
6872        ArraySet<String> origPermissions = gp.grantedPermissions;
6873        boolean changedPermission = false;
6874
6875        if (replace) {
6876            ps.permissionsFixed = false;
6877            if (gp == ps) {
6878                origPermissions = new ArraySet<String>(gp.grantedPermissions);
6879                gp.grantedPermissions.clear();
6880                gp.gids = mGlobalGids;
6881            }
6882        }
6883
6884        if (gp.gids == null) {
6885            gp.gids = mGlobalGids;
6886        }
6887
6888        final int N = pkg.requestedPermissions.size();
6889        for (int i=0; i<N; i++) {
6890            final String name = pkg.requestedPermissions.get(i);
6891            final boolean required = pkg.requestedPermissionsRequired.get(i);
6892            final BasePermission bp = mSettings.mPermissions.get(name);
6893            if (DEBUG_INSTALL) {
6894                if (gp != ps) {
6895                    Log.i(TAG, "Package " + pkg.packageName + " checking " + name + ": " + bp);
6896                }
6897            }
6898
6899            if (bp == null || bp.packageSetting == null) {
6900                if (packageOfInterest == null || packageOfInterest.equals(pkg.packageName)) {
6901                    Slog.w(TAG, "Unknown permission " + name
6902                            + " in package " + pkg.packageName);
6903                }
6904                continue;
6905            }
6906
6907            final String perm = bp.name;
6908            boolean allowed;
6909            boolean allowedSig = false;
6910            if ((bp.protectionLevel&PermissionInfo.PROTECTION_FLAG_APPOP) != 0) {
6911                // Keep track of app op permissions.
6912                ArraySet<String> pkgs = mAppOpPermissionPackages.get(bp.name);
6913                if (pkgs == null) {
6914                    pkgs = new ArraySet<>();
6915                    mAppOpPermissionPackages.put(bp.name, pkgs);
6916                }
6917                pkgs.add(pkg.packageName);
6918            }
6919            final int level = bp.protectionLevel & PermissionInfo.PROTECTION_MASK_BASE;
6920            if (level == PermissionInfo.PROTECTION_NORMAL
6921                    || level == PermissionInfo.PROTECTION_DANGEROUS) {
6922                // We grant a normal or dangerous permission if any of the following
6923                // are true:
6924                // 1) The permission is required
6925                // 2) The permission is optional, but was granted in the past
6926                // 3) The permission is optional, but was requested by an
6927                //    app in /system (not /data)
6928                //
6929                // Otherwise, reject the permission.
6930                allowed = (required || origPermissions.contains(perm)
6931                        || (isSystemApp(ps) && !isUpdatedSystemApp(ps)));
6932            } else if (bp.packageSetting == null) {
6933                // This permission is invalid; skip it.
6934                allowed = false;
6935            } else if (level == PermissionInfo.PROTECTION_SIGNATURE) {
6936                allowed = grantSignaturePermission(perm, pkg, bp, origPermissions);
6937                if (allowed) {
6938                    allowedSig = true;
6939                }
6940            } else {
6941                allowed = false;
6942            }
6943            if (DEBUG_INSTALL) {
6944                if (gp != ps) {
6945                    Log.i(TAG, "Package " + pkg.packageName + " granting " + perm);
6946                }
6947            }
6948            if (allowed) {
6949                if (!isSystemApp(ps) && ps.permissionsFixed) {
6950                    // If this is an existing, non-system package, then
6951                    // we can't add any new permissions to it.
6952                    if (!allowedSig && !gp.grantedPermissions.contains(perm)) {
6953                        // Except...  if this is a permission that was added
6954                        // to the platform (note: need to only do this when
6955                        // updating the platform).
6956                        allowed = isNewPlatformPermissionForPackage(perm, pkg);
6957                    }
6958                }
6959                if (allowed) {
6960                    if (!gp.grantedPermissions.contains(perm)) {
6961                        changedPermission = true;
6962                        gp.grantedPermissions.add(perm);
6963                        gp.gids = appendInts(gp.gids, bp.gids);
6964                    } else if (!ps.haveGids) {
6965                        gp.gids = appendInts(gp.gids, bp.gids);
6966                    }
6967                } else {
6968                    if (packageOfInterest == null || packageOfInterest.equals(pkg.packageName)) {
6969                        Slog.w(TAG, "Not granting permission " + perm
6970                                + " to package " + pkg.packageName
6971                                + " because it was previously installed without");
6972                    }
6973                }
6974            } else {
6975                if (gp.grantedPermissions.remove(perm)) {
6976                    changedPermission = true;
6977                    gp.gids = removeInts(gp.gids, bp.gids);
6978                    Slog.i(TAG, "Un-granting permission " + perm
6979                            + " from package " + pkg.packageName
6980                            + " (protectionLevel=" + bp.protectionLevel
6981                            + " flags=0x" + Integer.toHexString(pkg.applicationInfo.flags)
6982                            + ")");
6983                } else if ((bp.protectionLevel&PermissionInfo.PROTECTION_FLAG_APPOP) == 0) {
6984                    // Don't print warning for app op permissions, since it is fine for them
6985                    // not to be granted, there is a UI for the user to decide.
6986                    if (packageOfInterest == null || packageOfInterest.equals(pkg.packageName)) {
6987                        Slog.w(TAG, "Not granting permission " + perm
6988                                + " to package " + pkg.packageName
6989                                + " (protectionLevel=" + bp.protectionLevel
6990                                + " flags=0x" + Integer.toHexString(pkg.applicationInfo.flags)
6991                                + ")");
6992                    }
6993                }
6994            }
6995        }
6996
6997        if ((changedPermission || replace) && !ps.permissionsFixed &&
6998                !isSystemApp(ps) || isUpdatedSystemApp(ps)){
6999            // This is the first that we have heard about this package, so the
7000            // permissions we have now selected are fixed until explicitly
7001            // changed.
7002            ps.permissionsFixed = true;
7003        }
7004        ps.haveGids = true;
7005    }
7006
7007    private boolean isNewPlatformPermissionForPackage(String perm, PackageParser.Package pkg) {
7008        boolean allowed = false;
7009        final int NP = PackageParser.NEW_PERMISSIONS.length;
7010        for (int ip=0; ip<NP; ip++) {
7011            final PackageParser.NewPermissionInfo npi
7012                    = PackageParser.NEW_PERMISSIONS[ip];
7013            if (npi.name.equals(perm)
7014                    && pkg.applicationInfo.targetSdkVersion < npi.sdkVersion) {
7015                allowed = true;
7016                Log.i(TAG, "Auto-granting " + perm + " to old pkg "
7017                        + pkg.packageName);
7018                break;
7019            }
7020        }
7021        return allowed;
7022    }
7023
7024    private boolean grantSignaturePermission(String perm, PackageParser.Package pkg,
7025                                          BasePermission bp, ArraySet<String> origPermissions) {
7026        boolean allowed;
7027        allowed = (compareSignatures(
7028                bp.packageSetting.signatures.mSignatures, pkg.mSignatures)
7029                        == PackageManager.SIGNATURE_MATCH)
7030                || (compareSignatures(mPlatformPackage.mSignatures, pkg.mSignatures)
7031                        == PackageManager.SIGNATURE_MATCH);
7032        if (!allowed && (bp.protectionLevel
7033                & PermissionInfo.PROTECTION_FLAG_SYSTEM) != 0) {
7034            if (isSystemApp(pkg)) {
7035                // For updated system applications, a system permission
7036                // is granted only if it had been defined by the original application.
7037                if (pkg.isUpdatedSystemApp()) {
7038                    final PackageSetting sysPs = mSettings
7039                            .getDisabledSystemPkgLPr(pkg.packageName);
7040                    final GrantedPermissions origGp = sysPs.sharedUser != null
7041                            ? sysPs.sharedUser : sysPs;
7042
7043                    if (origGp.grantedPermissions.contains(perm)) {
7044                        // If the original was granted this permission, we take
7045                        // that grant decision as read and propagate it to the
7046                        // update.
7047                        if (sysPs.isPrivileged()) {
7048                            allowed = true;
7049                        }
7050                    } else {
7051                        // The system apk may have been updated with an older
7052                        // version of the one on the data partition, but which
7053                        // granted a new system permission that it didn't have
7054                        // before.  In this case we do want to allow the app to
7055                        // now get the new permission if the ancestral apk is
7056                        // privileged to get it.
7057                        if (sysPs.pkg != null && sysPs.isPrivileged()) {
7058                            for (int j=0;
7059                                    j<sysPs.pkg.requestedPermissions.size(); j++) {
7060                                if (perm.equals(
7061                                        sysPs.pkg.requestedPermissions.get(j))) {
7062                                    allowed = true;
7063                                    break;
7064                                }
7065                            }
7066                        }
7067                    }
7068                } else {
7069                    allowed = isPrivilegedApp(pkg);
7070                }
7071            }
7072        }
7073        if (!allowed && (bp.protectionLevel
7074                & PermissionInfo.PROTECTION_FLAG_DEVELOPMENT) != 0) {
7075            // For development permissions, a development permission
7076            // is granted only if it was already granted.
7077            allowed = origPermissions.contains(perm);
7078        }
7079        return allowed;
7080    }
7081
7082    final class ActivityIntentResolver
7083            extends IntentResolver<PackageParser.ActivityIntentInfo, ResolveInfo> {
7084        public List<ResolveInfo> queryIntent(Intent intent, String resolvedType,
7085                boolean defaultOnly, int userId) {
7086            if (!sUserManager.exists(userId)) return null;
7087            mFlags = defaultOnly ? PackageManager.MATCH_DEFAULT_ONLY : 0;
7088            return super.queryIntent(intent, resolvedType, defaultOnly, userId);
7089        }
7090
7091        public List<ResolveInfo> queryIntent(Intent intent, String resolvedType, int flags,
7092                int userId) {
7093            if (!sUserManager.exists(userId)) return null;
7094            mFlags = flags;
7095            return super.queryIntent(intent, resolvedType,
7096                    (flags & PackageManager.MATCH_DEFAULT_ONLY) != 0, userId);
7097        }
7098
7099        public List<ResolveInfo> queryIntentForPackage(Intent intent, String resolvedType,
7100                int flags, ArrayList<PackageParser.Activity> packageActivities, int userId) {
7101            if (!sUserManager.exists(userId)) return null;
7102            if (packageActivities == null) {
7103                return null;
7104            }
7105            mFlags = flags;
7106            final boolean defaultOnly = (flags&PackageManager.MATCH_DEFAULT_ONLY) != 0;
7107            final int N = packageActivities.size();
7108            ArrayList<PackageParser.ActivityIntentInfo[]> listCut =
7109                new ArrayList<PackageParser.ActivityIntentInfo[]>(N);
7110
7111            ArrayList<PackageParser.ActivityIntentInfo> intentFilters;
7112            for (int i = 0; i < N; ++i) {
7113                intentFilters = packageActivities.get(i).intents;
7114                if (intentFilters != null && intentFilters.size() > 0) {
7115                    PackageParser.ActivityIntentInfo[] array =
7116                            new PackageParser.ActivityIntentInfo[intentFilters.size()];
7117                    intentFilters.toArray(array);
7118                    listCut.add(array);
7119                }
7120            }
7121            return super.queryIntentFromList(intent, resolvedType, defaultOnly, listCut, userId);
7122        }
7123
7124        public final void addActivity(PackageParser.Activity a, String type) {
7125            final boolean systemApp = a.info.applicationInfo.isSystemApp();
7126            mActivities.put(a.getComponentName(), a);
7127            if (DEBUG_SHOW_INFO)
7128                Log.v(
7129                TAG, "  " + type + " " +
7130                (a.info.nonLocalizedLabel != null ? a.info.nonLocalizedLabel : a.info.name) + ":");
7131            if (DEBUG_SHOW_INFO)
7132                Log.v(TAG, "    Class=" + a.info.name);
7133            final int NI = a.intents.size();
7134            for (int j=0; j<NI; j++) {
7135                PackageParser.ActivityIntentInfo intent = a.intents.get(j);
7136                if (!systemApp && intent.getPriority() > 0 && "activity".equals(type)) {
7137                    intent.setPriority(0);
7138                    Log.w(TAG, "Package " + a.info.applicationInfo.packageName + " has activity "
7139                            + a.className + " with priority > 0, forcing to 0");
7140                }
7141                if (DEBUG_SHOW_INFO) {
7142                    Log.v(TAG, "    IntentFilter:");
7143                    intent.dump(new LogPrinter(Log.VERBOSE, TAG), "      ");
7144                }
7145                if (!intent.debugCheck()) {
7146                    Log.w(TAG, "==> For Activity " + a.info.name);
7147                }
7148                addFilter(intent);
7149            }
7150        }
7151
7152        public final void removeActivity(PackageParser.Activity a, String type) {
7153            mActivities.remove(a.getComponentName());
7154            if (DEBUG_SHOW_INFO) {
7155                Log.v(TAG, "  " + type + " "
7156                        + (a.info.nonLocalizedLabel != null ? a.info.nonLocalizedLabel
7157                                : a.info.name) + ":");
7158                Log.v(TAG, "    Class=" + a.info.name);
7159            }
7160            final int NI = a.intents.size();
7161            for (int j=0; j<NI; j++) {
7162                PackageParser.ActivityIntentInfo intent = a.intents.get(j);
7163                if (DEBUG_SHOW_INFO) {
7164                    Log.v(TAG, "    IntentFilter:");
7165                    intent.dump(new LogPrinter(Log.VERBOSE, TAG), "      ");
7166                }
7167                removeFilter(intent);
7168            }
7169        }
7170
7171        @Override
7172        protected boolean allowFilterResult(
7173                PackageParser.ActivityIntentInfo filter, List<ResolveInfo> dest) {
7174            ActivityInfo filterAi = filter.activity.info;
7175            for (int i=dest.size()-1; i>=0; i--) {
7176                ActivityInfo destAi = dest.get(i).activityInfo;
7177                if (destAi.name == filterAi.name
7178                        && destAi.packageName == filterAi.packageName) {
7179                    return false;
7180                }
7181            }
7182            return true;
7183        }
7184
7185        @Override
7186        protected ActivityIntentInfo[] newArray(int size) {
7187            return new ActivityIntentInfo[size];
7188        }
7189
7190        @Override
7191        protected boolean isFilterStopped(PackageParser.ActivityIntentInfo filter, int userId) {
7192            if (!sUserManager.exists(userId)) return true;
7193            PackageParser.Package p = filter.activity.owner;
7194            if (p != null) {
7195                PackageSetting ps = (PackageSetting)p.mExtras;
7196                if (ps != null) {
7197                    // System apps are never considered stopped for purposes of
7198                    // filtering, because there may be no way for the user to
7199                    // actually re-launch them.
7200                    return (ps.pkgFlags&ApplicationInfo.FLAG_SYSTEM) == 0
7201                            && ps.getStopped(userId);
7202                }
7203            }
7204            return false;
7205        }
7206
7207        @Override
7208        protected boolean isPackageForFilter(String packageName,
7209                PackageParser.ActivityIntentInfo info) {
7210            return packageName.equals(info.activity.owner.packageName);
7211        }
7212
7213        @Override
7214        protected ResolveInfo newResult(PackageParser.ActivityIntentInfo info,
7215                int match, int userId) {
7216            if (!sUserManager.exists(userId)) return null;
7217            if (!mSettings.isEnabledLPr(info.activity.info, mFlags, userId)) {
7218                return null;
7219            }
7220            final PackageParser.Activity activity = info.activity;
7221            if (mSafeMode && (activity.info.applicationInfo.flags
7222                    &ApplicationInfo.FLAG_SYSTEM) == 0) {
7223                return null;
7224            }
7225            PackageSetting ps = (PackageSetting) activity.owner.mExtras;
7226            if (ps == null) {
7227                return null;
7228            }
7229            ActivityInfo ai = PackageParser.generateActivityInfo(activity, mFlags,
7230                    ps.readUserState(userId), userId);
7231            if (ai == null) {
7232                return null;
7233            }
7234            final ResolveInfo res = new ResolveInfo();
7235            res.activityInfo = ai;
7236            if ((mFlags&PackageManager.GET_RESOLVED_FILTER) != 0) {
7237                res.filter = info;
7238            }
7239            res.priority = info.getPriority();
7240            res.preferredOrder = activity.owner.mPreferredOrder;
7241            //System.out.println("Result: " + res.activityInfo.className +
7242            //                   " = " + res.priority);
7243            res.match = match;
7244            res.isDefault = info.hasDefault;
7245            res.labelRes = info.labelRes;
7246            res.nonLocalizedLabel = info.nonLocalizedLabel;
7247            if (userNeedsBadging(userId)) {
7248                res.noResourceId = true;
7249            } else {
7250                res.icon = info.icon;
7251            }
7252            res.system = res.activityInfo.applicationInfo.isSystemApp();
7253            return res;
7254        }
7255
7256        @Override
7257        protected void sortResults(List<ResolveInfo> results) {
7258            Collections.sort(results, mResolvePrioritySorter);
7259        }
7260
7261        @Override
7262        protected void dumpFilter(PrintWriter out, String prefix,
7263                PackageParser.ActivityIntentInfo filter) {
7264            out.print(prefix); out.print(
7265                    Integer.toHexString(System.identityHashCode(filter.activity)));
7266                    out.print(' ');
7267                    filter.activity.printComponentShortName(out);
7268                    out.print(" filter ");
7269                    out.println(Integer.toHexString(System.identityHashCode(filter)));
7270        }
7271
7272        @Override
7273        protected Object filterToLabel(PackageParser.ActivityIntentInfo filter) {
7274            return filter.activity;
7275        }
7276
7277        protected void dumpFilterLabel(PrintWriter out, String prefix, Object label, int count) {
7278            PackageParser.Activity activity = (PackageParser.Activity)label;
7279            out.print(prefix); out.print(
7280                    Integer.toHexString(System.identityHashCode(activity)));
7281                    out.print(' ');
7282                    activity.printComponentShortName(out);
7283            if (count > 1) {
7284                out.print(" ("); out.print(count); out.print(" filters)");
7285            }
7286            out.println();
7287        }
7288
7289//        List<ResolveInfo> filterEnabled(List<ResolveInfo> resolveInfoList) {
7290//            final Iterator<ResolveInfo> i = resolveInfoList.iterator();
7291//            final List<ResolveInfo> retList = Lists.newArrayList();
7292//            while (i.hasNext()) {
7293//                final ResolveInfo resolveInfo = i.next();
7294//                if (isEnabledLP(resolveInfo.activityInfo)) {
7295//                    retList.add(resolveInfo);
7296//                }
7297//            }
7298//            return retList;
7299//        }
7300
7301        // Keys are String (activity class name), values are Activity.
7302        private final ArrayMap<ComponentName, PackageParser.Activity> mActivities
7303                = new ArrayMap<ComponentName, PackageParser.Activity>();
7304        private int mFlags;
7305    }
7306
7307    private final class ServiceIntentResolver
7308            extends IntentResolver<PackageParser.ServiceIntentInfo, ResolveInfo> {
7309        public List<ResolveInfo> queryIntent(Intent intent, String resolvedType,
7310                boolean defaultOnly, int userId) {
7311            mFlags = defaultOnly ? PackageManager.MATCH_DEFAULT_ONLY : 0;
7312            return super.queryIntent(intent, resolvedType, defaultOnly, userId);
7313        }
7314
7315        public List<ResolveInfo> queryIntent(Intent intent, String resolvedType, int flags,
7316                int userId) {
7317            if (!sUserManager.exists(userId)) return null;
7318            mFlags = flags;
7319            return super.queryIntent(intent, resolvedType,
7320                    (flags & PackageManager.MATCH_DEFAULT_ONLY) != 0, userId);
7321        }
7322
7323        public List<ResolveInfo> queryIntentForPackage(Intent intent, String resolvedType,
7324                int flags, ArrayList<PackageParser.Service> packageServices, int userId) {
7325            if (!sUserManager.exists(userId)) return null;
7326            if (packageServices == null) {
7327                return null;
7328            }
7329            mFlags = flags;
7330            final boolean defaultOnly = (flags&PackageManager.MATCH_DEFAULT_ONLY) != 0;
7331            final int N = packageServices.size();
7332            ArrayList<PackageParser.ServiceIntentInfo[]> listCut =
7333                new ArrayList<PackageParser.ServiceIntentInfo[]>(N);
7334
7335            ArrayList<PackageParser.ServiceIntentInfo> intentFilters;
7336            for (int i = 0; i < N; ++i) {
7337                intentFilters = packageServices.get(i).intents;
7338                if (intentFilters != null && intentFilters.size() > 0) {
7339                    PackageParser.ServiceIntentInfo[] array =
7340                            new PackageParser.ServiceIntentInfo[intentFilters.size()];
7341                    intentFilters.toArray(array);
7342                    listCut.add(array);
7343                }
7344            }
7345            return super.queryIntentFromList(intent, resolvedType, defaultOnly, listCut, userId);
7346        }
7347
7348        public final void addService(PackageParser.Service s) {
7349            mServices.put(s.getComponentName(), s);
7350            if (DEBUG_SHOW_INFO) {
7351                Log.v(TAG, "  "
7352                        + (s.info.nonLocalizedLabel != null
7353                        ? s.info.nonLocalizedLabel : s.info.name) + ":");
7354                Log.v(TAG, "    Class=" + s.info.name);
7355            }
7356            final int NI = s.intents.size();
7357            int j;
7358            for (j=0; j<NI; j++) {
7359                PackageParser.ServiceIntentInfo intent = s.intents.get(j);
7360                if (DEBUG_SHOW_INFO) {
7361                    Log.v(TAG, "    IntentFilter:");
7362                    intent.dump(new LogPrinter(Log.VERBOSE, TAG), "      ");
7363                }
7364                if (!intent.debugCheck()) {
7365                    Log.w(TAG, "==> For Service " + s.info.name);
7366                }
7367                addFilter(intent);
7368            }
7369        }
7370
7371        public final void removeService(PackageParser.Service s) {
7372            mServices.remove(s.getComponentName());
7373            if (DEBUG_SHOW_INFO) {
7374                Log.v(TAG, "  " + (s.info.nonLocalizedLabel != null
7375                        ? s.info.nonLocalizedLabel : s.info.name) + ":");
7376                Log.v(TAG, "    Class=" + s.info.name);
7377            }
7378            final int NI = s.intents.size();
7379            int j;
7380            for (j=0; j<NI; j++) {
7381                PackageParser.ServiceIntentInfo intent = s.intents.get(j);
7382                if (DEBUG_SHOW_INFO) {
7383                    Log.v(TAG, "    IntentFilter:");
7384                    intent.dump(new LogPrinter(Log.VERBOSE, TAG), "      ");
7385                }
7386                removeFilter(intent);
7387            }
7388        }
7389
7390        @Override
7391        protected boolean allowFilterResult(
7392                PackageParser.ServiceIntentInfo filter, List<ResolveInfo> dest) {
7393            ServiceInfo filterSi = filter.service.info;
7394            for (int i=dest.size()-1; i>=0; i--) {
7395                ServiceInfo destAi = dest.get(i).serviceInfo;
7396                if (destAi.name == filterSi.name
7397                        && destAi.packageName == filterSi.packageName) {
7398                    return false;
7399                }
7400            }
7401            return true;
7402        }
7403
7404        @Override
7405        protected PackageParser.ServiceIntentInfo[] newArray(int size) {
7406            return new PackageParser.ServiceIntentInfo[size];
7407        }
7408
7409        @Override
7410        protected boolean isFilterStopped(PackageParser.ServiceIntentInfo filter, int userId) {
7411            if (!sUserManager.exists(userId)) return true;
7412            PackageParser.Package p = filter.service.owner;
7413            if (p != null) {
7414                PackageSetting ps = (PackageSetting)p.mExtras;
7415                if (ps != null) {
7416                    // System apps are never considered stopped for purposes of
7417                    // filtering, because there may be no way for the user to
7418                    // actually re-launch them.
7419                    return (ps.pkgFlags & ApplicationInfo.FLAG_SYSTEM) == 0
7420                            && ps.getStopped(userId);
7421                }
7422            }
7423            return false;
7424        }
7425
7426        @Override
7427        protected boolean isPackageForFilter(String packageName,
7428                PackageParser.ServiceIntentInfo info) {
7429            return packageName.equals(info.service.owner.packageName);
7430        }
7431
7432        @Override
7433        protected ResolveInfo newResult(PackageParser.ServiceIntentInfo filter,
7434                int match, int userId) {
7435            if (!sUserManager.exists(userId)) return null;
7436            final PackageParser.ServiceIntentInfo info = (PackageParser.ServiceIntentInfo)filter;
7437            if (!mSettings.isEnabledLPr(info.service.info, mFlags, userId)) {
7438                return null;
7439            }
7440            final PackageParser.Service service = info.service;
7441            if (mSafeMode && (service.info.applicationInfo.flags
7442                    &ApplicationInfo.FLAG_SYSTEM) == 0) {
7443                return null;
7444            }
7445            PackageSetting ps = (PackageSetting) service.owner.mExtras;
7446            if (ps == null) {
7447                return null;
7448            }
7449            ServiceInfo si = PackageParser.generateServiceInfo(service, mFlags,
7450                    ps.readUserState(userId), userId);
7451            if (si == null) {
7452                return null;
7453            }
7454            final ResolveInfo res = new ResolveInfo();
7455            res.serviceInfo = si;
7456            if ((mFlags&PackageManager.GET_RESOLVED_FILTER) != 0) {
7457                res.filter = filter;
7458            }
7459            res.priority = info.getPriority();
7460            res.preferredOrder = service.owner.mPreferredOrder;
7461            //System.out.println("Result: " + res.activityInfo.className +
7462            //                   " = " + res.priority);
7463            res.match = match;
7464            res.isDefault = info.hasDefault;
7465            res.labelRes = info.labelRes;
7466            res.nonLocalizedLabel = info.nonLocalizedLabel;
7467            res.icon = info.icon;
7468            res.system = res.serviceInfo.applicationInfo.isSystemApp();
7469            return res;
7470        }
7471
7472        @Override
7473        protected void sortResults(List<ResolveInfo> results) {
7474            Collections.sort(results, mResolvePrioritySorter);
7475        }
7476
7477        @Override
7478        protected void dumpFilter(PrintWriter out, String prefix,
7479                PackageParser.ServiceIntentInfo filter) {
7480            out.print(prefix); out.print(
7481                    Integer.toHexString(System.identityHashCode(filter.service)));
7482                    out.print(' ');
7483                    filter.service.printComponentShortName(out);
7484                    out.print(" filter ");
7485                    out.println(Integer.toHexString(System.identityHashCode(filter)));
7486        }
7487
7488        @Override
7489        protected Object filterToLabel(PackageParser.ServiceIntentInfo filter) {
7490            return filter.service;
7491        }
7492
7493        protected void dumpFilterLabel(PrintWriter out, String prefix, Object label, int count) {
7494            PackageParser.Service service = (PackageParser.Service)label;
7495            out.print(prefix); out.print(
7496                    Integer.toHexString(System.identityHashCode(service)));
7497                    out.print(' ');
7498                    service.printComponentShortName(out);
7499            if (count > 1) {
7500                out.print(" ("); out.print(count); out.print(" filters)");
7501            }
7502            out.println();
7503        }
7504
7505//        List<ResolveInfo> filterEnabled(List<ResolveInfo> resolveInfoList) {
7506//            final Iterator<ResolveInfo> i = resolveInfoList.iterator();
7507//            final List<ResolveInfo> retList = Lists.newArrayList();
7508//            while (i.hasNext()) {
7509//                final ResolveInfo resolveInfo = (ResolveInfo) i;
7510//                if (isEnabledLP(resolveInfo.serviceInfo)) {
7511//                    retList.add(resolveInfo);
7512//                }
7513//            }
7514//            return retList;
7515//        }
7516
7517        // Keys are String (activity class name), values are Activity.
7518        private final ArrayMap<ComponentName, PackageParser.Service> mServices
7519                = new ArrayMap<ComponentName, PackageParser.Service>();
7520        private int mFlags;
7521    };
7522
7523    private final class ProviderIntentResolver
7524            extends IntentResolver<PackageParser.ProviderIntentInfo, ResolveInfo> {
7525        public List<ResolveInfo> queryIntent(Intent intent, String resolvedType,
7526                boolean defaultOnly, int userId) {
7527            mFlags = defaultOnly ? PackageManager.MATCH_DEFAULT_ONLY : 0;
7528            return super.queryIntent(intent, resolvedType, defaultOnly, userId);
7529        }
7530
7531        public List<ResolveInfo> queryIntent(Intent intent, String resolvedType, int flags,
7532                int userId) {
7533            if (!sUserManager.exists(userId))
7534                return null;
7535            mFlags = flags;
7536            return super.queryIntent(intent, resolvedType,
7537                    (flags & PackageManager.MATCH_DEFAULT_ONLY) != 0, userId);
7538        }
7539
7540        public List<ResolveInfo> queryIntentForPackage(Intent intent, String resolvedType,
7541                int flags, ArrayList<PackageParser.Provider> packageProviders, int userId) {
7542            if (!sUserManager.exists(userId))
7543                return null;
7544            if (packageProviders == null) {
7545                return null;
7546            }
7547            mFlags = flags;
7548            final boolean defaultOnly = (flags & PackageManager.MATCH_DEFAULT_ONLY) != 0;
7549            final int N = packageProviders.size();
7550            ArrayList<PackageParser.ProviderIntentInfo[]> listCut =
7551                    new ArrayList<PackageParser.ProviderIntentInfo[]>(N);
7552
7553            ArrayList<PackageParser.ProviderIntentInfo> intentFilters;
7554            for (int i = 0; i < N; ++i) {
7555                intentFilters = packageProviders.get(i).intents;
7556                if (intentFilters != null && intentFilters.size() > 0) {
7557                    PackageParser.ProviderIntentInfo[] array =
7558                            new PackageParser.ProviderIntentInfo[intentFilters.size()];
7559                    intentFilters.toArray(array);
7560                    listCut.add(array);
7561                }
7562            }
7563            return super.queryIntentFromList(intent, resolvedType, defaultOnly, listCut, userId);
7564        }
7565
7566        public final void addProvider(PackageParser.Provider p) {
7567            if (mProviders.containsKey(p.getComponentName())) {
7568                Slog.w(TAG, "Provider " + p.getComponentName() + " already defined; ignoring");
7569                return;
7570            }
7571
7572            mProviders.put(p.getComponentName(), p);
7573            if (DEBUG_SHOW_INFO) {
7574                Log.v(TAG, "  "
7575                        + (p.info.nonLocalizedLabel != null
7576                                ? p.info.nonLocalizedLabel : p.info.name) + ":");
7577                Log.v(TAG, "    Class=" + p.info.name);
7578            }
7579            final int NI = p.intents.size();
7580            int j;
7581            for (j = 0; j < NI; j++) {
7582                PackageParser.ProviderIntentInfo intent = p.intents.get(j);
7583                if (DEBUG_SHOW_INFO) {
7584                    Log.v(TAG, "    IntentFilter:");
7585                    intent.dump(new LogPrinter(Log.VERBOSE, TAG), "      ");
7586                }
7587                if (!intent.debugCheck()) {
7588                    Log.w(TAG, "==> For Provider " + p.info.name);
7589                }
7590                addFilter(intent);
7591            }
7592        }
7593
7594        public final void removeProvider(PackageParser.Provider p) {
7595            mProviders.remove(p.getComponentName());
7596            if (DEBUG_SHOW_INFO) {
7597                Log.v(TAG, "  " + (p.info.nonLocalizedLabel != null
7598                        ? p.info.nonLocalizedLabel : p.info.name) + ":");
7599                Log.v(TAG, "    Class=" + p.info.name);
7600            }
7601            final int NI = p.intents.size();
7602            int j;
7603            for (j = 0; j < NI; j++) {
7604                PackageParser.ProviderIntentInfo intent = p.intents.get(j);
7605                if (DEBUG_SHOW_INFO) {
7606                    Log.v(TAG, "    IntentFilter:");
7607                    intent.dump(new LogPrinter(Log.VERBOSE, TAG), "      ");
7608                }
7609                removeFilter(intent);
7610            }
7611        }
7612
7613        @Override
7614        protected boolean allowFilterResult(
7615                PackageParser.ProviderIntentInfo filter, List<ResolveInfo> dest) {
7616            ProviderInfo filterPi = filter.provider.info;
7617            for (int i = dest.size() - 1; i >= 0; i--) {
7618                ProviderInfo destPi = dest.get(i).providerInfo;
7619                if (destPi.name == filterPi.name
7620                        && destPi.packageName == filterPi.packageName) {
7621                    return false;
7622                }
7623            }
7624            return true;
7625        }
7626
7627        @Override
7628        protected PackageParser.ProviderIntentInfo[] newArray(int size) {
7629            return new PackageParser.ProviderIntentInfo[size];
7630        }
7631
7632        @Override
7633        protected boolean isFilterStopped(PackageParser.ProviderIntentInfo filter, int userId) {
7634            if (!sUserManager.exists(userId))
7635                return true;
7636            PackageParser.Package p = filter.provider.owner;
7637            if (p != null) {
7638                PackageSetting ps = (PackageSetting) p.mExtras;
7639                if (ps != null) {
7640                    // System apps are never considered stopped for purposes of
7641                    // filtering, because there may be no way for the user to
7642                    // actually re-launch them.
7643                    return (ps.pkgFlags & ApplicationInfo.FLAG_SYSTEM) == 0
7644                            && ps.getStopped(userId);
7645                }
7646            }
7647            return false;
7648        }
7649
7650        @Override
7651        protected boolean isPackageForFilter(String packageName,
7652                PackageParser.ProviderIntentInfo info) {
7653            return packageName.equals(info.provider.owner.packageName);
7654        }
7655
7656        @Override
7657        protected ResolveInfo newResult(PackageParser.ProviderIntentInfo filter,
7658                int match, int userId) {
7659            if (!sUserManager.exists(userId))
7660                return null;
7661            final PackageParser.ProviderIntentInfo info = filter;
7662            if (!mSettings.isEnabledLPr(info.provider.info, mFlags, userId)) {
7663                return null;
7664            }
7665            final PackageParser.Provider provider = info.provider;
7666            if (mSafeMode && (provider.info.applicationInfo.flags
7667                    & ApplicationInfo.FLAG_SYSTEM) == 0) {
7668                return null;
7669            }
7670            PackageSetting ps = (PackageSetting) provider.owner.mExtras;
7671            if (ps == null) {
7672                return null;
7673            }
7674            ProviderInfo pi = PackageParser.generateProviderInfo(provider, mFlags,
7675                    ps.readUserState(userId), userId);
7676            if (pi == null) {
7677                return null;
7678            }
7679            final ResolveInfo res = new ResolveInfo();
7680            res.providerInfo = pi;
7681            if ((mFlags & PackageManager.GET_RESOLVED_FILTER) != 0) {
7682                res.filter = filter;
7683            }
7684            res.priority = info.getPriority();
7685            res.preferredOrder = provider.owner.mPreferredOrder;
7686            res.match = match;
7687            res.isDefault = info.hasDefault;
7688            res.labelRes = info.labelRes;
7689            res.nonLocalizedLabel = info.nonLocalizedLabel;
7690            res.icon = info.icon;
7691            res.system = res.providerInfo.applicationInfo.isSystemApp();
7692            return res;
7693        }
7694
7695        @Override
7696        protected void sortResults(List<ResolveInfo> results) {
7697            Collections.sort(results, mResolvePrioritySorter);
7698        }
7699
7700        @Override
7701        protected void dumpFilter(PrintWriter out, String prefix,
7702                PackageParser.ProviderIntentInfo filter) {
7703            out.print(prefix);
7704            out.print(
7705                    Integer.toHexString(System.identityHashCode(filter.provider)));
7706            out.print(' ');
7707            filter.provider.printComponentShortName(out);
7708            out.print(" filter ");
7709            out.println(Integer.toHexString(System.identityHashCode(filter)));
7710        }
7711
7712        @Override
7713        protected Object filterToLabel(PackageParser.ProviderIntentInfo filter) {
7714            return filter.provider;
7715        }
7716
7717        protected void dumpFilterLabel(PrintWriter out, String prefix, Object label, int count) {
7718            PackageParser.Provider provider = (PackageParser.Provider)label;
7719            out.print(prefix); out.print(
7720                    Integer.toHexString(System.identityHashCode(provider)));
7721                    out.print(' ');
7722                    provider.printComponentShortName(out);
7723            if (count > 1) {
7724                out.print(" ("); out.print(count); out.print(" filters)");
7725            }
7726            out.println();
7727        }
7728
7729        private final ArrayMap<ComponentName, PackageParser.Provider> mProviders
7730                = new ArrayMap<ComponentName, PackageParser.Provider>();
7731        private int mFlags;
7732    };
7733
7734    private static final Comparator<ResolveInfo> mResolvePrioritySorter =
7735            new Comparator<ResolveInfo>() {
7736        public int compare(ResolveInfo r1, ResolveInfo r2) {
7737            int v1 = r1.priority;
7738            int v2 = r2.priority;
7739            //System.out.println("Comparing: q1=" + q1 + " q2=" + q2);
7740            if (v1 != v2) {
7741                return (v1 > v2) ? -1 : 1;
7742            }
7743            v1 = r1.preferredOrder;
7744            v2 = r2.preferredOrder;
7745            if (v1 != v2) {
7746                return (v1 > v2) ? -1 : 1;
7747            }
7748            if (r1.isDefault != r2.isDefault) {
7749                return r1.isDefault ? -1 : 1;
7750            }
7751            v1 = r1.match;
7752            v2 = r2.match;
7753            //System.out.println("Comparing: m1=" + m1 + " m2=" + m2);
7754            if (v1 != v2) {
7755                return (v1 > v2) ? -1 : 1;
7756            }
7757            if (r1.system != r2.system) {
7758                return r1.system ? -1 : 1;
7759            }
7760            return 0;
7761        }
7762    };
7763
7764    private static final Comparator<ProviderInfo> mProviderInitOrderSorter =
7765            new Comparator<ProviderInfo>() {
7766        public int compare(ProviderInfo p1, ProviderInfo p2) {
7767            final int v1 = p1.initOrder;
7768            final int v2 = p2.initOrder;
7769            return (v1 > v2) ? -1 : ((v1 < v2) ? 1 : 0);
7770        }
7771    };
7772
7773    static final void sendPackageBroadcast(String action, String pkg,
7774            Bundle extras, String targetPkg, IIntentReceiver finishedReceiver,
7775            int[] userIds) {
7776        IActivityManager am = ActivityManagerNative.getDefault();
7777        if (am != null) {
7778            try {
7779                if (userIds == null) {
7780                    userIds = am.getRunningUserIds();
7781                }
7782                for (int id : userIds) {
7783                    final Intent intent = new Intent(action,
7784                            pkg != null ? Uri.fromParts("package", pkg, null) : null);
7785                    if (extras != null) {
7786                        intent.putExtras(extras);
7787                    }
7788                    if (targetPkg != null) {
7789                        intent.setPackage(targetPkg);
7790                    }
7791                    // Modify the UID when posting to other users
7792                    int uid = intent.getIntExtra(Intent.EXTRA_UID, -1);
7793                    if (uid > 0 && UserHandle.getUserId(uid) != id) {
7794                        uid = UserHandle.getUid(id, UserHandle.getAppId(uid));
7795                        intent.putExtra(Intent.EXTRA_UID, uid);
7796                    }
7797                    intent.putExtra(Intent.EXTRA_USER_HANDLE, id);
7798                    intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT);
7799                    if (DEBUG_BROADCASTS) {
7800                        RuntimeException here = new RuntimeException("here");
7801                        here.fillInStackTrace();
7802                        Slog.d(TAG, "Sending to user " + id + ": "
7803                                + intent.toShortString(false, true, false, false)
7804                                + " " + intent.getExtras(), here);
7805                    }
7806                    am.broadcastIntent(null, intent, null, finishedReceiver,
7807                            0, null, null, null, android.app.AppOpsManager.OP_NONE,
7808                            finishedReceiver != null, false, id);
7809                }
7810            } catch (RemoteException ex) {
7811            }
7812        }
7813    }
7814
7815    /**
7816     * Check if the external storage media is available. This is true if there
7817     * is a mounted external storage medium or if the external storage is
7818     * emulated.
7819     */
7820    private boolean isExternalMediaAvailable() {
7821        return mMediaMounted || Environment.isExternalStorageEmulated();
7822    }
7823
7824    @Override
7825    public PackageCleanItem nextPackageToClean(PackageCleanItem lastPackage) {
7826        // writer
7827        synchronized (mPackages) {
7828            if (!isExternalMediaAvailable()) {
7829                // If the external storage is no longer mounted at this point,
7830                // the caller may not have been able to delete all of this
7831                // packages files and can not delete any more.  Bail.
7832                return null;
7833            }
7834            final ArrayList<PackageCleanItem> pkgs = mSettings.mPackagesToBeCleaned;
7835            if (lastPackage != null) {
7836                pkgs.remove(lastPackage);
7837            }
7838            if (pkgs.size() > 0) {
7839                return pkgs.get(0);
7840            }
7841        }
7842        return null;
7843    }
7844
7845    void schedulePackageCleaning(String packageName, int userId, boolean andCode) {
7846        final Message msg = mHandler.obtainMessage(START_CLEANING_PACKAGE,
7847                userId, andCode ? 1 : 0, packageName);
7848        if (mSystemReady) {
7849            msg.sendToTarget();
7850        } else {
7851            if (mPostSystemReadyMessages == null) {
7852                mPostSystemReadyMessages = new ArrayList<>();
7853            }
7854            mPostSystemReadyMessages.add(msg);
7855        }
7856    }
7857
7858    void startCleaningPackages() {
7859        // reader
7860        synchronized (mPackages) {
7861            if (!isExternalMediaAvailable()) {
7862                return;
7863            }
7864            if (mSettings.mPackagesToBeCleaned.isEmpty()) {
7865                return;
7866            }
7867        }
7868        Intent intent = new Intent(PackageManager.ACTION_CLEAN_EXTERNAL_STORAGE);
7869        intent.setComponent(DEFAULT_CONTAINER_COMPONENT);
7870        IActivityManager am = ActivityManagerNative.getDefault();
7871        if (am != null) {
7872            try {
7873                am.startService(null, intent, null, UserHandle.USER_OWNER);
7874            } catch (RemoteException e) {
7875            }
7876        }
7877    }
7878
7879    @Override
7880    public void installPackage(String originPath, IPackageInstallObserver2 observer,
7881            int installFlags, String installerPackageName, VerificationParams verificationParams,
7882            String packageAbiOverride) {
7883        installPackageAsUser(originPath, observer, installFlags, installerPackageName, verificationParams,
7884                packageAbiOverride, UserHandle.getCallingUserId());
7885    }
7886
7887    @Override
7888    public void installPackageAsUser(String originPath, IPackageInstallObserver2 observer,
7889            int installFlags, String installerPackageName, VerificationParams verificationParams,
7890            String packageAbiOverride, int userId) {
7891        mContext.enforceCallingOrSelfPermission(android.Manifest.permission.INSTALL_PACKAGES, null);
7892
7893        final int callingUid = Binder.getCallingUid();
7894        enforceCrossUserPermission(callingUid, userId, true, true, "installPackageAsUser");
7895
7896        if (isUserRestricted(userId, UserManager.DISALLOW_INSTALL_APPS)) {
7897            try {
7898                if (observer != null) {
7899                    observer.onPackageInstalled("", INSTALL_FAILED_USER_RESTRICTED, null, null);
7900                }
7901            } catch (RemoteException re) {
7902            }
7903            return;
7904        }
7905
7906        if ((callingUid == Process.SHELL_UID) || (callingUid == Process.ROOT_UID)) {
7907            installFlags |= PackageManager.INSTALL_FROM_ADB;
7908
7909        } else {
7910            // Caller holds INSTALL_PACKAGES permission, so we're less strict
7911            // about installerPackageName.
7912
7913            installFlags &= ~PackageManager.INSTALL_FROM_ADB;
7914            installFlags &= ~PackageManager.INSTALL_ALL_USERS;
7915        }
7916
7917        UserHandle user;
7918        if ((installFlags & PackageManager.INSTALL_ALL_USERS) != 0) {
7919            user = UserHandle.ALL;
7920        } else {
7921            user = new UserHandle(userId);
7922        }
7923
7924        verificationParams.setInstallerUid(callingUid);
7925
7926        final File originFile = new File(originPath);
7927        final OriginInfo origin = OriginInfo.fromUntrustedFile(originFile);
7928
7929        final Message msg = mHandler.obtainMessage(INIT_COPY);
7930        msg.obj = new InstallParams(origin, observer, installFlags,
7931                installerPackageName, verificationParams, user, packageAbiOverride);
7932        mHandler.sendMessage(msg);
7933    }
7934
7935    void installStage(String packageName, File stagedDir, String stagedCid,
7936            IPackageInstallObserver2 observer, PackageInstaller.SessionParams params,
7937            String installerPackageName, int installerUid, UserHandle user) {
7938        final VerificationParams verifParams = new VerificationParams(null, params.originatingUri,
7939                params.referrerUri, installerUid, null);
7940
7941        final OriginInfo origin;
7942        if (stagedDir != null) {
7943            origin = OriginInfo.fromStagedFile(stagedDir);
7944        } else {
7945            origin = OriginInfo.fromStagedContainer(stagedCid);
7946        }
7947
7948        final Message msg = mHandler.obtainMessage(INIT_COPY);
7949        msg.obj = new InstallParams(origin, observer, params.installFlags,
7950                installerPackageName, verifParams, user, params.abiOverride);
7951        mHandler.sendMessage(msg);
7952    }
7953
7954    private void sendPackageAddedForUser(String packageName, PackageSetting pkgSetting, int userId) {
7955        Bundle extras = new Bundle(1);
7956        extras.putInt(Intent.EXTRA_UID, UserHandle.getUid(userId, pkgSetting.appId));
7957
7958        sendPackageBroadcast(Intent.ACTION_PACKAGE_ADDED,
7959                packageName, extras, null, null, new int[] {userId});
7960        try {
7961            IActivityManager am = ActivityManagerNative.getDefault();
7962            final boolean isSystem =
7963                    isSystemApp(pkgSetting) || isUpdatedSystemApp(pkgSetting);
7964            if (isSystem && am.isUserRunning(userId, false)) {
7965                // The just-installed/enabled app is bundled on the system, so presumed
7966                // to be able to run automatically without needing an explicit launch.
7967                // Send it a BOOT_COMPLETED if it would ordinarily have gotten one.
7968                Intent bcIntent = new Intent(Intent.ACTION_BOOT_COMPLETED)
7969                        .addFlags(Intent.FLAG_INCLUDE_STOPPED_PACKAGES)
7970                        .setPackage(packageName);
7971                am.broadcastIntent(null, bcIntent, null, null, 0, null, null, null,
7972                        android.app.AppOpsManager.OP_NONE, false, false, userId);
7973            }
7974        } catch (RemoteException e) {
7975            // shouldn't happen
7976            Slog.w(TAG, "Unable to bootstrap installed package", e);
7977        }
7978    }
7979
7980    @Override
7981    public boolean setApplicationHiddenSettingAsUser(String packageName, boolean hidden,
7982            int userId) {
7983        mContext.enforceCallingOrSelfPermission(android.Manifest.permission.MANAGE_USERS, null);
7984        PackageSetting pkgSetting;
7985        final int uid = Binder.getCallingUid();
7986        enforceCrossUserPermission(uid, userId, true, true,
7987                "setApplicationHiddenSetting for user " + userId);
7988
7989        if (hidden && isPackageDeviceAdmin(packageName, userId)) {
7990            Slog.w(TAG, "Not hiding package " + packageName + ": has active device admin");
7991            return false;
7992        }
7993
7994        long callingId = Binder.clearCallingIdentity();
7995        try {
7996            boolean sendAdded = false;
7997            boolean sendRemoved = false;
7998            // writer
7999            synchronized (mPackages) {
8000                pkgSetting = mSettings.mPackages.get(packageName);
8001                if (pkgSetting == null) {
8002                    return false;
8003                }
8004                if (pkgSetting.getHidden(userId) != hidden) {
8005                    pkgSetting.setHidden(hidden, userId);
8006                    mSettings.writePackageRestrictionsLPr(userId);
8007                    if (hidden) {
8008                        sendRemoved = true;
8009                    } else {
8010                        sendAdded = true;
8011                    }
8012                }
8013            }
8014            if (sendAdded) {
8015                sendPackageAddedForUser(packageName, pkgSetting, userId);
8016                return true;
8017            }
8018            if (sendRemoved) {
8019                killApplication(packageName, UserHandle.getUid(userId, pkgSetting.appId),
8020                        "hiding pkg");
8021                sendApplicationHiddenForUser(packageName, pkgSetting, userId);
8022            }
8023        } finally {
8024            Binder.restoreCallingIdentity(callingId);
8025        }
8026        return false;
8027    }
8028
8029    private void sendApplicationHiddenForUser(String packageName, PackageSetting pkgSetting,
8030            int userId) {
8031        final PackageRemovedInfo info = new PackageRemovedInfo();
8032        info.removedPackage = packageName;
8033        info.removedUsers = new int[] {userId};
8034        info.uid = UserHandle.getUid(userId, pkgSetting.appId);
8035        info.sendBroadcast(false, false, false);
8036    }
8037
8038    /**
8039     * Returns true if application is not found or there was an error. Otherwise it returns
8040     * the hidden state of the package for the given user.
8041     */
8042    @Override
8043    public boolean getApplicationHiddenSettingAsUser(String packageName, int userId) {
8044        mContext.enforceCallingOrSelfPermission(android.Manifest.permission.MANAGE_USERS, null);
8045        enforceCrossUserPermission(Binder.getCallingUid(), userId, true,
8046                false, "getApplicationHidden for user " + userId);
8047        PackageSetting pkgSetting;
8048        long callingId = Binder.clearCallingIdentity();
8049        try {
8050            // writer
8051            synchronized (mPackages) {
8052                pkgSetting = mSettings.mPackages.get(packageName);
8053                if (pkgSetting == null) {
8054                    return true;
8055                }
8056                return pkgSetting.getHidden(userId);
8057            }
8058        } finally {
8059            Binder.restoreCallingIdentity(callingId);
8060        }
8061    }
8062
8063    /**
8064     * @hide
8065     */
8066    @Override
8067    public int installExistingPackageAsUser(String packageName, int userId) {
8068        mContext.enforceCallingOrSelfPermission(android.Manifest.permission.INSTALL_PACKAGES,
8069                null);
8070        PackageSetting pkgSetting;
8071        final int uid = Binder.getCallingUid();
8072        enforceCrossUserPermission(uid, userId, true, true, "installExistingPackage for user "
8073                + userId);
8074        if (isUserRestricted(userId, UserManager.DISALLOW_INSTALL_APPS)) {
8075            return PackageManager.INSTALL_FAILED_USER_RESTRICTED;
8076        }
8077
8078        long callingId = Binder.clearCallingIdentity();
8079        try {
8080            boolean sendAdded = false;
8081            Bundle extras = new Bundle(1);
8082
8083            // writer
8084            synchronized (mPackages) {
8085                pkgSetting = mSettings.mPackages.get(packageName);
8086                if (pkgSetting == null) {
8087                    return PackageManager.INSTALL_FAILED_INVALID_URI;
8088                }
8089                if (!pkgSetting.getInstalled(userId)) {
8090                    pkgSetting.setInstalled(true, userId);
8091                    pkgSetting.setHidden(false, userId);
8092                    mSettings.writePackageRestrictionsLPr(userId);
8093                    sendAdded = true;
8094                }
8095            }
8096
8097            if (sendAdded) {
8098                sendPackageAddedForUser(packageName, pkgSetting, userId);
8099            }
8100        } finally {
8101            Binder.restoreCallingIdentity(callingId);
8102        }
8103
8104        return PackageManager.INSTALL_SUCCEEDED;
8105    }
8106
8107    boolean isUserRestricted(int userId, String restrictionKey) {
8108        Bundle restrictions = sUserManager.getUserRestrictions(userId);
8109        if (restrictions.getBoolean(restrictionKey, false)) {
8110            Log.w(TAG, "User is restricted: " + restrictionKey);
8111            return true;
8112        }
8113        return false;
8114    }
8115
8116    @Override
8117    public void verifyPendingInstall(int id, int verificationCode) throws RemoteException {
8118        mContext.enforceCallingOrSelfPermission(
8119                android.Manifest.permission.PACKAGE_VERIFICATION_AGENT,
8120                "Only package verification agents can verify applications");
8121
8122        final Message msg = mHandler.obtainMessage(PACKAGE_VERIFIED);
8123        final PackageVerificationResponse response = new PackageVerificationResponse(
8124                verificationCode, Binder.getCallingUid());
8125        msg.arg1 = id;
8126        msg.obj = response;
8127        mHandler.sendMessage(msg);
8128    }
8129
8130    @Override
8131    public void extendVerificationTimeout(int id, int verificationCodeAtTimeout,
8132            long millisecondsToDelay) {
8133        mContext.enforceCallingOrSelfPermission(
8134                android.Manifest.permission.PACKAGE_VERIFICATION_AGENT,
8135                "Only package verification agents can extend verification timeouts");
8136
8137        final PackageVerificationState state = mPendingVerification.get(id);
8138        final PackageVerificationResponse response = new PackageVerificationResponse(
8139                verificationCodeAtTimeout, Binder.getCallingUid());
8140
8141        if (millisecondsToDelay > PackageManager.MAXIMUM_VERIFICATION_TIMEOUT) {
8142            millisecondsToDelay = PackageManager.MAXIMUM_VERIFICATION_TIMEOUT;
8143        }
8144        if (millisecondsToDelay < 0) {
8145            millisecondsToDelay = 0;
8146        }
8147        if ((verificationCodeAtTimeout != PackageManager.VERIFICATION_ALLOW)
8148                && (verificationCodeAtTimeout != PackageManager.VERIFICATION_REJECT)) {
8149            verificationCodeAtTimeout = PackageManager.VERIFICATION_REJECT;
8150        }
8151
8152        if ((state != null) && !state.timeoutExtended()) {
8153            state.extendTimeout();
8154
8155            final Message msg = mHandler.obtainMessage(PACKAGE_VERIFIED);
8156            msg.arg1 = id;
8157            msg.obj = response;
8158            mHandler.sendMessageDelayed(msg, millisecondsToDelay);
8159        }
8160    }
8161
8162    private void broadcastPackageVerified(int verificationId, Uri packageUri,
8163            int verificationCode, UserHandle user) {
8164        final Intent intent = new Intent(Intent.ACTION_PACKAGE_VERIFIED);
8165        intent.setDataAndType(packageUri, PACKAGE_MIME_TYPE);
8166        intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
8167        intent.putExtra(PackageManager.EXTRA_VERIFICATION_ID, verificationId);
8168        intent.putExtra(PackageManager.EXTRA_VERIFICATION_RESULT, verificationCode);
8169
8170        mContext.sendBroadcastAsUser(intent, user,
8171                android.Manifest.permission.PACKAGE_VERIFICATION_AGENT);
8172    }
8173
8174    private ComponentName matchComponentForVerifier(String packageName,
8175            List<ResolveInfo> receivers) {
8176        ActivityInfo targetReceiver = null;
8177
8178        final int NR = receivers.size();
8179        for (int i = 0; i < NR; i++) {
8180            final ResolveInfo info = receivers.get(i);
8181            if (info.activityInfo == null) {
8182                continue;
8183            }
8184
8185            if (packageName.equals(info.activityInfo.packageName)) {
8186                targetReceiver = info.activityInfo;
8187                break;
8188            }
8189        }
8190
8191        if (targetReceiver == null) {
8192            return null;
8193        }
8194
8195        return new ComponentName(targetReceiver.packageName, targetReceiver.name);
8196    }
8197
8198    private List<ComponentName> matchVerifiers(PackageInfoLite pkgInfo,
8199            List<ResolveInfo> receivers, final PackageVerificationState verificationState) {
8200        if (pkgInfo.verifiers.length == 0) {
8201            return null;
8202        }
8203
8204        final int N = pkgInfo.verifiers.length;
8205        final List<ComponentName> sufficientVerifiers = new ArrayList<ComponentName>(N + 1);
8206        for (int i = 0; i < N; i++) {
8207            final VerifierInfo verifierInfo = pkgInfo.verifiers[i];
8208
8209            final ComponentName comp = matchComponentForVerifier(verifierInfo.packageName,
8210                    receivers);
8211            if (comp == null) {
8212                continue;
8213            }
8214
8215            final int verifierUid = getUidForVerifier(verifierInfo);
8216            if (verifierUid == -1) {
8217                continue;
8218            }
8219
8220            if (DEBUG_VERIFY) {
8221                Slog.d(TAG, "Added sufficient verifier " + verifierInfo.packageName
8222                        + " with the correct signature");
8223            }
8224            sufficientVerifiers.add(comp);
8225            verificationState.addSufficientVerifier(verifierUid);
8226        }
8227
8228        return sufficientVerifiers;
8229    }
8230
8231    private int getUidForVerifier(VerifierInfo verifierInfo) {
8232        synchronized (mPackages) {
8233            final PackageParser.Package pkg = mPackages.get(verifierInfo.packageName);
8234            if (pkg == null) {
8235                return -1;
8236            } else if (pkg.mSignatures.length != 1) {
8237                Slog.i(TAG, "Verifier package " + verifierInfo.packageName
8238                        + " has more than one signature; ignoring");
8239                return -1;
8240            }
8241
8242            /*
8243             * If the public key of the package's signature does not match
8244             * our expected public key, then this is a different package and
8245             * we should skip.
8246             */
8247
8248            final byte[] expectedPublicKey;
8249            try {
8250                final Signature verifierSig = pkg.mSignatures[0];
8251                final PublicKey publicKey = verifierSig.getPublicKey();
8252                expectedPublicKey = publicKey.getEncoded();
8253            } catch (CertificateException e) {
8254                return -1;
8255            }
8256
8257            final byte[] actualPublicKey = verifierInfo.publicKey.getEncoded();
8258
8259            if (!Arrays.equals(actualPublicKey, expectedPublicKey)) {
8260                Slog.i(TAG, "Verifier package " + verifierInfo.packageName
8261                        + " does not have the expected public key; ignoring");
8262                return -1;
8263            }
8264
8265            return pkg.applicationInfo.uid;
8266        }
8267    }
8268
8269    @Override
8270    public void finishPackageInstall(int token) {
8271        enforceSystemOrRoot("Only the system is allowed to finish installs");
8272
8273        if (DEBUG_INSTALL) {
8274            Slog.v(TAG, "BM finishing package install for " + token);
8275        }
8276
8277        final Message msg = mHandler.obtainMessage(POST_INSTALL, token, 0);
8278        mHandler.sendMessage(msg);
8279    }
8280
8281    /**
8282     * Get the verification agent timeout.
8283     *
8284     * @return verification timeout in milliseconds
8285     */
8286    private long getVerificationTimeout() {
8287        return android.provider.Settings.Global.getLong(mContext.getContentResolver(),
8288                android.provider.Settings.Global.PACKAGE_VERIFIER_TIMEOUT,
8289                DEFAULT_VERIFICATION_TIMEOUT);
8290    }
8291
8292    /**
8293     * Get the default verification agent response code.
8294     *
8295     * @return default verification response code
8296     */
8297    private int getDefaultVerificationResponse() {
8298        return android.provider.Settings.Global.getInt(mContext.getContentResolver(),
8299                android.provider.Settings.Global.PACKAGE_VERIFIER_DEFAULT_RESPONSE,
8300                DEFAULT_VERIFICATION_RESPONSE);
8301    }
8302
8303    /**
8304     * Check whether or not package verification has been enabled.
8305     *
8306     * @return true if verification should be performed
8307     */
8308    private boolean isVerificationEnabled(int userId, int installFlags) {
8309        if (!DEFAULT_VERIFY_ENABLE) {
8310            return false;
8311        }
8312
8313        boolean ensureVerifyAppsEnabled = isUserRestricted(userId, UserManager.ENSURE_VERIFY_APPS);
8314
8315        // Check if installing from ADB
8316        if ((installFlags & PackageManager.INSTALL_FROM_ADB) != 0) {
8317            // Do not run verification in a test harness environment
8318            if (ActivityManager.isRunningInTestHarness()) {
8319                return false;
8320            }
8321            if (ensureVerifyAppsEnabled) {
8322                return true;
8323            }
8324            // Check if the developer does not want package verification for ADB installs
8325            if (android.provider.Settings.Global.getInt(mContext.getContentResolver(),
8326                    android.provider.Settings.Global.PACKAGE_VERIFIER_INCLUDE_ADB, 1) == 0) {
8327                return false;
8328            }
8329        }
8330
8331        if (ensureVerifyAppsEnabled) {
8332            return true;
8333        }
8334
8335        return android.provider.Settings.Global.getInt(mContext.getContentResolver(),
8336                android.provider.Settings.Global.PACKAGE_VERIFIER_ENABLE, 1) == 1;
8337    }
8338
8339    /**
8340     * Get the "allow unknown sources" setting.
8341     *
8342     * @return the current "allow unknown sources" setting
8343     */
8344    private int getUnknownSourcesSettings() {
8345        return android.provider.Settings.Global.getInt(mContext.getContentResolver(),
8346                android.provider.Settings.Global.INSTALL_NON_MARKET_APPS,
8347                -1);
8348    }
8349
8350    @Override
8351    public void setInstallerPackageName(String targetPackage, String installerPackageName) {
8352        final int uid = Binder.getCallingUid();
8353        // writer
8354        synchronized (mPackages) {
8355            PackageSetting targetPackageSetting = mSettings.mPackages.get(targetPackage);
8356            if (targetPackageSetting == null) {
8357                throw new IllegalArgumentException("Unknown target package: " + targetPackage);
8358            }
8359
8360            PackageSetting installerPackageSetting;
8361            if (installerPackageName != null) {
8362                installerPackageSetting = mSettings.mPackages.get(installerPackageName);
8363                if (installerPackageSetting == null) {
8364                    throw new IllegalArgumentException("Unknown installer package: "
8365                            + installerPackageName);
8366                }
8367            } else {
8368                installerPackageSetting = null;
8369            }
8370
8371            Signature[] callerSignature;
8372            Object obj = mSettings.getUserIdLPr(uid);
8373            if (obj != null) {
8374                if (obj instanceof SharedUserSetting) {
8375                    callerSignature = ((SharedUserSetting)obj).signatures.mSignatures;
8376                } else if (obj instanceof PackageSetting) {
8377                    callerSignature = ((PackageSetting)obj).signatures.mSignatures;
8378                } else {
8379                    throw new SecurityException("Bad object " + obj + " for uid " + uid);
8380                }
8381            } else {
8382                throw new SecurityException("Unknown calling uid " + uid);
8383            }
8384
8385            // Verify: can't set installerPackageName to a package that is
8386            // not signed with the same cert as the caller.
8387            if (installerPackageSetting != null) {
8388                if (compareSignatures(callerSignature,
8389                        installerPackageSetting.signatures.mSignatures)
8390                        != PackageManager.SIGNATURE_MATCH) {
8391                    throw new SecurityException(
8392                            "Caller does not have same cert as new installer package "
8393                            + installerPackageName);
8394                }
8395            }
8396
8397            // Verify: if target already has an installer package, it must
8398            // be signed with the same cert as the caller.
8399            if (targetPackageSetting.installerPackageName != null) {
8400                PackageSetting setting = mSettings.mPackages.get(
8401                        targetPackageSetting.installerPackageName);
8402                // If the currently set package isn't valid, then it's always
8403                // okay to change it.
8404                if (setting != null) {
8405                    if (compareSignatures(callerSignature,
8406                            setting.signatures.mSignatures)
8407                            != PackageManager.SIGNATURE_MATCH) {
8408                        throw new SecurityException(
8409                                "Caller does not have same cert as old installer package "
8410                                + targetPackageSetting.installerPackageName);
8411                    }
8412                }
8413            }
8414
8415            // Okay!
8416            targetPackageSetting.installerPackageName = installerPackageName;
8417            scheduleWriteSettingsLocked();
8418        }
8419    }
8420
8421    private void processPendingInstall(final InstallArgs args, final int currentStatus) {
8422        // Queue up an async operation since the package installation may take a little while.
8423        mHandler.post(new Runnable() {
8424            public void run() {
8425                mHandler.removeCallbacks(this);
8426                 // Result object to be returned
8427                PackageInstalledInfo res = new PackageInstalledInfo();
8428                res.returnCode = currentStatus;
8429                res.uid = -1;
8430                res.pkg = null;
8431                res.removedInfo = new PackageRemovedInfo();
8432                if (res.returnCode == PackageManager.INSTALL_SUCCEEDED) {
8433                    args.doPreInstall(res.returnCode);
8434                    synchronized (mInstallLock) {
8435                        installPackageLI(args, res);
8436                    }
8437                    args.doPostInstall(res.returnCode, res.uid);
8438                }
8439
8440                // A restore should be performed at this point if (a) the install
8441                // succeeded, (b) the operation is not an update, and (c) the new
8442                // package has not opted out of backup participation.
8443                final boolean update = res.removedInfo.removedPackage != null;
8444                final int flags = (res.pkg == null) ? 0 : res.pkg.applicationInfo.flags;
8445                boolean doRestore = !update
8446                        && ((flags & ApplicationInfo.FLAG_ALLOW_BACKUP) != 0);
8447
8448                // Set up the post-install work request bookkeeping.  This will be used
8449                // and cleaned up by the post-install event handling regardless of whether
8450                // there's a restore pass performed.  Token values are >= 1.
8451                int token;
8452                if (mNextInstallToken < 0) mNextInstallToken = 1;
8453                token = mNextInstallToken++;
8454
8455                PostInstallData data = new PostInstallData(args, res);
8456                mRunningInstalls.put(token, data);
8457                if (DEBUG_INSTALL) Log.v(TAG, "+ starting restore round-trip " + token);
8458
8459                if (res.returnCode == PackageManager.INSTALL_SUCCEEDED && doRestore) {
8460                    // Pass responsibility to the Backup Manager.  It will perform a
8461                    // restore if appropriate, then pass responsibility back to the
8462                    // Package Manager to run the post-install observer callbacks
8463                    // and broadcasts.
8464                    IBackupManager bm = IBackupManager.Stub.asInterface(
8465                            ServiceManager.getService(Context.BACKUP_SERVICE));
8466                    if (bm != null) {
8467                        if (DEBUG_INSTALL) Log.v(TAG, "token " + token
8468                                + " to BM for possible restore");
8469                        try {
8470                            if (bm.isBackupServiceActive(UserHandle.USER_OWNER)) {
8471                                bm.restoreAtInstall(res.pkg.applicationInfo.packageName, token);
8472                            } else {
8473                                doRestore = false;
8474                            }
8475                        } catch (RemoteException e) {
8476                            // can't happen; the backup manager is local
8477                        } catch (Exception e) {
8478                            Slog.e(TAG, "Exception trying to enqueue restore", e);
8479                            doRestore = false;
8480                        }
8481                    } else {
8482                        Slog.e(TAG, "Backup Manager not found!");
8483                        doRestore = false;
8484                    }
8485                }
8486
8487                if (!doRestore) {
8488                    // No restore possible, or the Backup Manager was mysteriously not
8489                    // available -- just fire the post-install work request directly.
8490                    if (DEBUG_INSTALL) Log.v(TAG, "No restore - queue post-install for " + token);
8491                    Message msg = mHandler.obtainMessage(POST_INSTALL, token, 0);
8492                    mHandler.sendMessage(msg);
8493                }
8494            }
8495        });
8496    }
8497
8498    private abstract class HandlerParams {
8499        private static final int MAX_RETRIES = 4;
8500
8501        /**
8502         * Number of times startCopy() has been attempted and had a non-fatal
8503         * error.
8504         */
8505        private int mRetries = 0;
8506
8507        /** User handle for the user requesting the information or installation. */
8508        private final UserHandle mUser;
8509
8510        HandlerParams(UserHandle user) {
8511            mUser = user;
8512        }
8513
8514        UserHandle getUser() {
8515            return mUser;
8516        }
8517
8518        final boolean startCopy() {
8519            boolean res;
8520            try {
8521                if (DEBUG_INSTALL) Slog.i(TAG, "startCopy " + mUser + ": " + this);
8522
8523                if (++mRetries > MAX_RETRIES) {
8524                    Slog.w(TAG, "Failed to invoke remote methods on default container service. Giving up");
8525                    mHandler.sendEmptyMessage(MCS_GIVE_UP);
8526                    handleServiceError();
8527                    return false;
8528                } else {
8529                    handleStartCopy();
8530                    res = true;
8531                }
8532            } catch (RemoteException e) {
8533                if (DEBUG_INSTALL) Slog.i(TAG, "Posting install MCS_RECONNECT");
8534                mHandler.sendEmptyMessage(MCS_RECONNECT);
8535                res = false;
8536            }
8537            handleReturnCode();
8538            return res;
8539        }
8540
8541        final void serviceError() {
8542            if (DEBUG_INSTALL) Slog.i(TAG, "serviceError");
8543            handleServiceError();
8544            handleReturnCode();
8545        }
8546
8547        abstract void handleStartCopy() throws RemoteException;
8548        abstract void handleServiceError();
8549        abstract void handleReturnCode();
8550    }
8551
8552    class MeasureParams extends HandlerParams {
8553        private final PackageStats mStats;
8554        private boolean mSuccess;
8555
8556        private final IPackageStatsObserver mObserver;
8557
8558        public MeasureParams(PackageStats stats, IPackageStatsObserver observer) {
8559            super(new UserHandle(stats.userHandle));
8560            mObserver = observer;
8561            mStats = stats;
8562        }
8563
8564        @Override
8565        public String toString() {
8566            return "MeasureParams{"
8567                + Integer.toHexString(System.identityHashCode(this))
8568                + " " + mStats.packageName + "}";
8569        }
8570
8571        @Override
8572        void handleStartCopy() throws RemoteException {
8573            synchronized (mInstallLock) {
8574                mSuccess = getPackageSizeInfoLI(mStats.packageName, mStats.userHandle, mStats);
8575            }
8576
8577            if (mSuccess) {
8578                final boolean mounted;
8579                if (Environment.isExternalStorageEmulated()) {
8580                    mounted = true;
8581                } else {
8582                    final String status = Environment.getExternalStorageState();
8583                    mounted = (Environment.MEDIA_MOUNTED.equals(status)
8584                            || Environment.MEDIA_MOUNTED_READ_ONLY.equals(status));
8585                }
8586
8587                if (mounted) {
8588                    final UserEnvironment userEnv = new UserEnvironment(mStats.userHandle);
8589
8590                    mStats.externalCacheSize = calculateDirectorySize(mContainerService,
8591                            userEnv.buildExternalStorageAppCacheDirs(mStats.packageName));
8592
8593                    mStats.externalDataSize = calculateDirectorySize(mContainerService,
8594                            userEnv.buildExternalStorageAppDataDirs(mStats.packageName));
8595
8596                    // Always subtract cache size, since it's a subdirectory
8597                    mStats.externalDataSize -= mStats.externalCacheSize;
8598
8599                    mStats.externalMediaSize = calculateDirectorySize(mContainerService,
8600                            userEnv.buildExternalStorageAppMediaDirs(mStats.packageName));
8601
8602                    mStats.externalObbSize = calculateDirectorySize(mContainerService,
8603                            userEnv.buildExternalStorageAppObbDirs(mStats.packageName));
8604                }
8605            }
8606        }
8607
8608        @Override
8609        void handleReturnCode() {
8610            if (mObserver != null) {
8611                try {
8612                    mObserver.onGetStatsCompleted(mStats, mSuccess);
8613                } catch (RemoteException e) {
8614                    Slog.i(TAG, "Observer no longer exists.");
8615                }
8616            }
8617        }
8618
8619        @Override
8620        void handleServiceError() {
8621            Slog.e(TAG, "Could not measure application " + mStats.packageName
8622                            + " external storage");
8623        }
8624    }
8625
8626    private static long calculateDirectorySize(IMediaContainerService mcs, File[] paths)
8627            throws RemoteException {
8628        long result = 0;
8629        for (File path : paths) {
8630            result += mcs.calculateDirectorySize(path.getAbsolutePath());
8631        }
8632        return result;
8633    }
8634
8635    private static void clearDirectory(IMediaContainerService mcs, File[] paths) {
8636        for (File path : paths) {
8637            try {
8638                mcs.clearDirectory(path.getAbsolutePath());
8639            } catch (RemoteException e) {
8640            }
8641        }
8642    }
8643
8644    static class OriginInfo {
8645        /**
8646         * Location where install is coming from, before it has been
8647         * copied/renamed into place. This could be a single monolithic APK
8648         * file, or a cluster directory. This location may be untrusted.
8649         */
8650        final File file;
8651        final String cid;
8652
8653        /**
8654         * Flag indicating that {@link #file} or {@link #cid} has already been
8655         * staged, meaning downstream users don't need to defensively copy the
8656         * contents.
8657         */
8658        final boolean staged;
8659
8660        /**
8661         * Flag indicating that {@link #file} or {@link #cid} is an already
8662         * installed app that is being moved.
8663         */
8664        final boolean existing;
8665
8666        final String resolvedPath;
8667        final File resolvedFile;
8668
8669        static OriginInfo fromNothing() {
8670            return new OriginInfo(null, null, false, false);
8671        }
8672
8673        static OriginInfo fromUntrustedFile(File file) {
8674            return new OriginInfo(file, null, false, false);
8675        }
8676
8677        static OriginInfo fromExistingFile(File file) {
8678            return new OriginInfo(file, null, false, true);
8679        }
8680
8681        static OriginInfo fromStagedFile(File file) {
8682            return new OriginInfo(file, null, true, false);
8683        }
8684
8685        static OriginInfo fromStagedContainer(String cid) {
8686            return new OriginInfo(null, cid, true, false);
8687        }
8688
8689        private OriginInfo(File file, String cid, boolean staged, boolean existing) {
8690            this.file = file;
8691            this.cid = cid;
8692            this.staged = staged;
8693            this.existing = existing;
8694
8695            if (cid != null) {
8696                resolvedPath = PackageHelper.getSdDir(cid);
8697                resolvedFile = new File(resolvedPath);
8698            } else if (file != null) {
8699                resolvedPath = file.getAbsolutePath();
8700                resolvedFile = file;
8701            } else {
8702                resolvedPath = null;
8703                resolvedFile = null;
8704            }
8705        }
8706    }
8707
8708    class InstallParams extends HandlerParams {
8709        final OriginInfo origin;
8710        final IPackageInstallObserver2 observer;
8711        int installFlags;
8712        final String installerPackageName;
8713        final VerificationParams verificationParams;
8714        private InstallArgs mArgs;
8715        private int mRet;
8716        final String packageAbiOverride;
8717
8718        InstallParams(OriginInfo origin, IPackageInstallObserver2 observer, int installFlags,
8719                String installerPackageName, VerificationParams verificationParams, UserHandle user,
8720                String packageAbiOverride) {
8721            super(user);
8722            this.origin = origin;
8723            this.observer = observer;
8724            this.installFlags = installFlags;
8725            this.installerPackageName = installerPackageName;
8726            this.verificationParams = verificationParams;
8727            this.packageAbiOverride = packageAbiOverride;
8728        }
8729
8730        @Override
8731        public String toString() {
8732            return "InstallParams{" + Integer.toHexString(System.identityHashCode(this))
8733                    + " file=" + origin.file + " cid=" + origin.cid + "}";
8734        }
8735
8736        public ManifestDigest getManifestDigest() {
8737            if (verificationParams == null) {
8738                return null;
8739            }
8740            return verificationParams.getManifestDigest();
8741        }
8742
8743        private int installLocationPolicy(PackageInfoLite pkgLite) {
8744            String packageName = pkgLite.packageName;
8745            int installLocation = pkgLite.installLocation;
8746            boolean onSd = (installFlags & PackageManager.INSTALL_EXTERNAL) != 0;
8747            // reader
8748            synchronized (mPackages) {
8749                PackageParser.Package pkg = mPackages.get(packageName);
8750                if (pkg != null) {
8751                    if ((installFlags & PackageManager.INSTALL_REPLACE_EXISTING) != 0) {
8752                        // Check for downgrading.
8753                        if ((installFlags & PackageManager.INSTALL_ALLOW_DOWNGRADE) == 0) {
8754                            try {
8755                                checkDowngrade(pkg, pkgLite);
8756                            } catch (PackageManagerException e) {
8757                                Slog.w(TAG, "Downgrade detected: " + e.getMessage());
8758                                return PackageHelper.RECOMMEND_FAILED_VERSION_DOWNGRADE;
8759                            }
8760                        }
8761                        // Check for updated system application.
8762                        if ((pkg.applicationInfo.flags & ApplicationInfo.FLAG_SYSTEM) != 0) {
8763                            if (onSd) {
8764                                Slog.w(TAG, "Cannot install update to system app on sdcard");
8765                                return PackageHelper.RECOMMEND_FAILED_INVALID_LOCATION;
8766                            }
8767                            return PackageHelper.RECOMMEND_INSTALL_INTERNAL;
8768                        } else {
8769                            if (onSd) {
8770                                // Install flag overrides everything.
8771                                return PackageHelper.RECOMMEND_INSTALL_EXTERNAL;
8772                            }
8773                            // If current upgrade specifies particular preference
8774                            if (installLocation == PackageInfo.INSTALL_LOCATION_INTERNAL_ONLY) {
8775                                // Application explicitly specified internal.
8776                                return PackageHelper.RECOMMEND_INSTALL_INTERNAL;
8777                            } else if (installLocation == PackageInfo.INSTALL_LOCATION_PREFER_EXTERNAL) {
8778                                // App explictly prefers external. Let policy decide
8779                            } else {
8780                                // Prefer previous location
8781                                if (isExternal(pkg)) {
8782                                    return PackageHelper.RECOMMEND_INSTALL_EXTERNAL;
8783                                }
8784                                return PackageHelper.RECOMMEND_INSTALL_INTERNAL;
8785                            }
8786                        }
8787                    } else {
8788                        // Invalid install. Return error code
8789                        return PackageHelper.RECOMMEND_FAILED_ALREADY_EXISTS;
8790                    }
8791                }
8792            }
8793            // All the special cases have been taken care of.
8794            // Return result based on recommended install location.
8795            if (onSd) {
8796                return PackageHelper.RECOMMEND_INSTALL_EXTERNAL;
8797            }
8798            return pkgLite.recommendedInstallLocation;
8799        }
8800
8801        /*
8802         * Invoke remote method to get package information and install
8803         * location values. Override install location based on default
8804         * policy if needed and then create install arguments based
8805         * on the install location.
8806         */
8807        public void handleStartCopy() throws RemoteException {
8808            int ret = PackageManager.INSTALL_SUCCEEDED;
8809
8810            // If we're already staged, we've firmly committed to an install location
8811            if (origin.staged) {
8812                if (origin.file != null) {
8813                    installFlags |= PackageManager.INSTALL_INTERNAL;
8814                    installFlags &= ~PackageManager.INSTALL_EXTERNAL;
8815                } else if (origin.cid != null) {
8816                    installFlags |= PackageManager.INSTALL_EXTERNAL;
8817                    installFlags &= ~PackageManager.INSTALL_INTERNAL;
8818                } else {
8819                    throw new IllegalStateException("Invalid stage location");
8820                }
8821            }
8822
8823            final boolean onSd = (installFlags & PackageManager.INSTALL_EXTERNAL) != 0;
8824            final boolean onInt = (installFlags & PackageManager.INSTALL_INTERNAL) != 0;
8825
8826            PackageInfoLite pkgLite = null;
8827
8828            if (onInt && onSd) {
8829                // Check if both bits are set.
8830                Slog.w(TAG, "Conflicting flags specified for installing on both internal and external");
8831                ret = PackageManager.INSTALL_FAILED_INVALID_INSTALL_LOCATION;
8832            } else {
8833                pkgLite = mContainerService.getMinimalPackageInfo(origin.resolvedPath, installFlags,
8834                        packageAbiOverride);
8835
8836                /*
8837                 * If we have too little free space, try to free cache
8838                 * before giving up.
8839                 */
8840                if (!origin.staged && pkgLite.recommendedInstallLocation
8841                        == PackageHelper.RECOMMEND_FAILED_INSUFFICIENT_STORAGE) {
8842                    // TODO: focus freeing disk space on the target device
8843                    final StorageManager storage = StorageManager.from(mContext);
8844                    final long lowThreshold = storage.getStorageLowBytes(
8845                            Environment.getDataDirectory());
8846
8847                    final long sizeBytes = mContainerService.calculateInstalledSize(
8848                            origin.resolvedPath, isForwardLocked(), packageAbiOverride);
8849
8850                    if (mInstaller.freeCache(sizeBytes + lowThreshold) >= 0) {
8851                        pkgLite = mContainerService.getMinimalPackageInfo(origin.resolvedPath,
8852                                installFlags, packageAbiOverride);
8853                    }
8854
8855                    /*
8856                     * The cache free must have deleted the file we
8857                     * downloaded to install.
8858                     *
8859                     * TODO: fix the "freeCache" call to not delete
8860                     *       the file we care about.
8861                     */
8862                    if (pkgLite.recommendedInstallLocation
8863                            == PackageHelper.RECOMMEND_FAILED_INVALID_URI) {
8864                        pkgLite.recommendedInstallLocation
8865                            = PackageHelper.RECOMMEND_FAILED_INSUFFICIENT_STORAGE;
8866                    }
8867                }
8868            }
8869
8870            if (ret == PackageManager.INSTALL_SUCCEEDED) {
8871                int loc = pkgLite.recommendedInstallLocation;
8872                if (loc == PackageHelper.RECOMMEND_FAILED_INVALID_LOCATION) {
8873                    ret = PackageManager.INSTALL_FAILED_INVALID_INSTALL_LOCATION;
8874                } else if (loc == PackageHelper.RECOMMEND_FAILED_ALREADY_EXISTS) {
8875                    ret = PackageManager.INSTALL_FAILED_ALREADY_EXISTS;
8876                } else if (loc == PackageHelper.RECOMMEND_FAILED_INSUFFICIENT_STORAGE) {
8877                    ret = PackageManager.INSTALL_FAILED_INSUFFICIENT_STORAGE;
8878                } else if (loc == PackageHelper.RECOMMEND_FAILED_INVALID_APK) {
8879                    ret = PackageManager.INSTALL_FAILED_INVALID_APK;
8880                } else if (loc == PackageHelper.RECOMMEND_FAILED_INVALID_URI) {
8881                    ret = PackageManager.INSTALL_FAILED_INVALID_URI;
8882                } else if (loc == PackageHelper.RECOMMEND_MEDIA_UNAVAILABLE) {
8883                    ret = PackageManager.INSTALL_FAILED_MEDIA_UNAVAILABLE;
8884                } else {
8885                    // Override with defaults if needed.
8886                    loc = installLocationPolicy(pkgLite);
8887                    if (loc == PackageHelper.RECOMMEND_FAILED_VERSION_DOWNGRADE) {
8888                        ret = PackageManager.INSTALL_FAILED_VERSION_DOWNGRADE;
8889                    } else if (!onSd && !onInt) {
8890                        // Override install location with flags
8891                        if (loc == PackageHelper.RECOMMEND_INSTALL_EXTERNAL) {
8892                            // Set the flag to install on external media.
8893                            installFlags |= PackageManager.INSTALL_EXTERNAL;
8894                            installFlags &= ~PackageManager.INSTALL_INTERNAL;
8895                        } else {
8896                            // Make sure the flag for installing on external
8897                            // media is unset
8898                            installFlags |= PackageManager.INSTALL_INTERNAL;
8899                            installFlags &= ~PackageManager.INSTALL_EXTERNAL;
8900                        }
8901                    }
8902                }
8903            }
8904
8905            final InstallArgs args = createInstallArgs(this);
8906            mArgs = args;
8907
8908            if (ret == PackageManager.INSTALL_SUCCEEDED) {
8909                 /*
8910                 * ADB installs appear as UserHandle.USER_ALL, and can only be performed by
8911                 * UserHandle.USER_OWNER, so use the package verifier for UserHandle.USER_OWNER.
8912                 */
8913                int userIdentifier = getUser().getIdentifier();
8914                if (userIdentifier == UserHandle.USER_ALL
8915                        && ((installFlags & PackageManager.INSTALL_FROM_ADB) != 0)) {
8916                    userIdentifier = UserHandle.USER_OWNER;
8917                }
8918
8919                /*
8920                 * Determine if we have any installed package verifiers. If we
8921                 * do, then we'll defer to them to verify the packages.
8922                 */
8923                final int requiredUid = mRequiredVerifierPackage == null ? -1
8924                        : getPackageUid(mRequiredVerifierPackage, userIdentifier);
8925                if (!origin.existing && requiredUid != -1
8926                        && isVerificationEnabled(userIdentifier, installFlags)) {
8927                    final Intent verification = new Intent(
8928                            Intent.ACTION_PACKAGE_NEEDS_VERIFICATION);
8929                    verification.addFlags(Intent.FLAG_RECEIVER_FOREGROUND);
8930                    verification.setDataAndType(Uri.fromFile(new File(origin.resolvedPath)),
8931                            PACKAGE_MIME_TYPE);
8932                    verification.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
8933
8934                    final List<ResolveInfo> receivers = queryIntentReceivers(verification,
8935                            PACKAGE_MIME_TYPE, PackageManager.GET_DISABLED_COMPONENTS,
8936                            0 /* TODO: Which userId? */);
8937
8938                    if (DEBUG_VERIFY) {
8939                        Slog.d(TAG, "Found " + receivers.size() + " verifiers for intent "
8940                                + verification.toString() + " with " + pkgLite.verifiers.length
8941                                + " optional verifiers");
8942                    }
8943
8944                    final int verificationId = mPendingVerificationToken++;
8945
8946                    verification.putExtra(PackageManager.EXTRA_VERIFICATION_ID, verificationId);
8947
8948                    verification.putExtra(PackageManager.EXTRA_VERIFICATION_INSTALLER_PACKAGE,
8949                            installerPackageName);
8950
8951                    verification.putExtra(PackageManager.EXTRA_VERIFICATION_INSTALL_FLAGS,
8952                            installFlags);
8953
8954                    verification.putExtra(PackageManager.EXTRA_VERIFICATION_PACKAGE_NAME,
8955                            pkgLite.packageName);
8956
8957                    verification.putExtra(PackageManager.EXTRA_VERIFICATION_VERSION_CODE,
8958                            pkgLite.versionCode);
8959
8960                    if (verificationParams != null) {
8961                        if (verificationParams.getVerificationURI() != null) {
8962                           verification.putExtra(PackageManager.EXTRA_VERIFICATION_URI,
8963                                 verificationParams.getVerificationURI());
8964                        }
8965                        if (verificationParams.getOriginatingURI() != null) {
8966                            verification.putExtra(Intent.EXTRA_ORIGINATING_URI,
8967                                  verificationParams.getOriginatingURI());
8968                        }
8969                        if (verificationParams.getReferrer() != null) {
8970                            verification.putExtra(Intent.EXTRA_REFERRER,
8971                                  verificationParams.getReferrer());
8972                        }
8973                        if (verificationParams.getOriginatingUid() >= 0) {
8974                            verification.putExtra(Intent.EXTRA_ORIGINATING_UID,
8975                                  verificationParams.getOriginatingUid());
8976                        }
8977                        if (verificationParams.getInstallerUid() >= 0) {
8978                            verification.putExtra(PackageManager.EXTRA_VERIFICATION_INSTALLER_UID,
8979                                  verificationParams.getInstallerUid());
8980                        }
8981                    }
8982
8983                    final PackageVerificationState verificationState = new PackageVerificationState(
8984                            requiredUid, args);
8985
8986                    mPendingVerification.append(verificationId, verificationState);
8987
8988                    final List<ComponentName> sufficientVerifiers = matchVerifiers(pkgLite,
8989                            receivers, verificationState);
8990
8991                    /*
8992                     * If any sufficient verifiers were listed in the package
8993                     * manifest, attempt to ask them.
8994                     */
8995                    if (sufficientVerifiers != null) {
8996                        final int N = sufficientVerifiers.size();
8997                        if (N == 0) {
8998                            Slog.i(TAG, "Additional verifiers required, but none installed.");
8999                            ret = PackageManager.INSTALL_FAILED_VERIFICATION_FAILURE;
9000                        } else {
9001                            for (int i = 0; i < N; i++) {
9002                                final ComponentName verifierComponent = sufficientVerifiers.get(i);
9003
9004                                final Intent sufficientIntent = new Intent(verification);
9005                                sufficientIntent.setComponent(verifierComponent);
9006
9007                                mContext.sendBroadcastAsUser(sufficientIntent, getUser());
9008                            }
9009                        }
9010                    }
9011
9012                    final ComponentName requiredVerifierComponent = matchComponentForVerifier(
9013                            mRequiredVerifierPackage, receivers);
9014                    if (ret == PackageManager.INSTALL_SUCCEEDED
9015                            && mRequiredVerifierPackage != null) {
9016                        /*
9017                         * Send the intent to the required verification agent,
9018                         * but only start the verification timeout after the
9019                         * target BroadcastReceivers have run.
9020                         */
9021                        verification.setComponent(requiredVerifierComponent);
9022                        mContext.sendOrderedBroadcastAsUser(verification, getUser(),
9023                                android.Manifest.permission.PACKAGE_VERIFICATION_AGENT,
9024                                new BroadcastReceiver() {
9025                                    @Override
9026                                    public void onReceive(Context context, Intent intent) {
9027                                        final Message msg = mHandler
9028                                                .obtainMessage(CHECK_PENDING_VERIFICATION);
9029                                        msg.arg1 = verificationId;
9030                                        mHandler.sendMessageDelayed(msg, getVerificationTimeout());
9031                                    }
9032                                }, null, 0, null, null);
9033
9034                        /*
9035                         * We don't want the copy to proceed until verification
9036                         * succeeds, so null out this field.
9037                         */
9038                        mArgs = null;
9039                    }
9040                } else {
9041                    /*
9042                     * No package verification is enabled, so immediately start
9043                     * the remote call to initiate copy using temporary file.
9044                     */
9045                    ret = args.copyApk(mContainerService, true);
9046                }
9047            }
9048
9049            mRet = ret;
9050        }
9051
9052        @Override
9053        void handleReturnCode() {
9054            // If mArgs is null, then MCS couldn't be reached. When it
9055            // reconnects, it will try again to install. At that point, this
9056            // will succeed.
9057            if (mArgs != null) {
9058                processPendingInstall(mArgs, mRet);
9059            }
9060        }
9061
9062        @Override
9063        void handleServiceError() {
9064            mArgs = createInstallArgs(this);
9065            mRet = PackageManager.INSTALL_FAILED_INTERNAL_ERROR;
9066        }
9067
9068        public boolean isForwardLocked() {
9069            return (installFlags & PackageManager.INSTALL_FORWARD_LOCK) != 0;
9070        }
9071    }
9072
9073    /**
9074     * Used during creation of InstallArgs
9075     *
9076     * @param installFlags package installation flags
9077     * @return true if should be installed on external storage
9078     */
9079    private static boolean installOnSd(int installFlags) {
9080        if ((installFlags & PackageManager.INSTALL_INTERNAL) != 0) {
9081            return false;
9082        }
9083        if ((installFlags & PackageManager.INSTALL_EXTERNAL) != 0) {
9084            return true;
9085        }
9086        return false;
9087    }
9088
9089    /**
9090     * Used during creation of InstallArgs
9091     *
9092     * @param installFlags package installation flags
9093     * @return true if should be installed as forward locked
9094     */
9095    private static boolean installForwardLocked(int installFlags) {
9096        return (installFlags & PackageManager.INSTALL_FORWARD_LOCK) != 0;
9097    }
9098
9099    private InstallArgs createInstallArgs(InstallParams params) {
9100        if (installOnSd(params.installFlags) || params.isForwardLocked()) {
9101            return new AsecInstallArgs(params);
9102        } else {
9103            return new FileInstallArgs(params);
9104        }
9105    }
9106
9107    /**
9108     * Create args that describe an existing installed package. Typically used
9109     * when cleaning up old installs, or used as a move source.
9110     */
9111    private InstallArgs createInstallArgsForExisting(int installFlags, String codePath,
9112            String resourcePath, String nativeLibraryRoot, String[] instructionSets) {
9113        final boolean isInAsec;
9114        if (installOnSd(installFlags)) {
9115            /* Apps on SD card are always in ASEC containers. */
9116            isInAsec = true;
9117        } else if (installForwardLocked(installFlags)
9118                && !codePath.startsWith(mDrmAppPrivateInstallDir.getAbsolutePath())) {
9119            /*
9120             * Forward-locked apps are only in ASEC containers if they're the
9121             * new style
9122             */
9123            isInAsec = true;
9124        } else {
9125            isInAsec = false;
9126        }
9127
9128        if (isInAsec) {
9129            return new AsecInstallArgs(codePath, instructionSets,
9130                    installOnSd(installFlags), installForwardLocked(installFlags));
9131        } else {
9132            return new FileInstallArgs(codePath, resourcePath, nativeLibraryRoot,
9133                    instructionSets);
9134        }
9135    }
9136
9137    static abstract class InstallArgs {
9138        /** @see InstallParams#origin */
9139        final OriginInfo origin;
9140
9141        final IPackageInstallObserver2 observer;
9142        // Always refers to PackageManager flags only
9143        final int installFlags;
9144        final String installerPackageName;
9145        final ManifestDigest manifestDigest;
9146        final UserHandle user;
9147        final String abiOverride;
9148
9149        // The list of instruction sets supported by this app. This is currently
9150        // only used during the rmdex() phase to clean up resources. We can get rid of this
9151        // if we move dex files under the common app path.
9152        /* nullable */ String[] instructionSets;
9153
9154        InstallArgs(OriginInfo origin, IPackageInstallObserver2 observer, int installFlags,
9155                String installerPackageName, ManifestDigest manifestDigest, UserHandle user,
9156                String[] instructionSets, String abiOverride) {
9157            this.origin = origin;
9158            this.installFlags = installFlags;
9159            this.observer = observer;
9160            this.installerPackageName = installerPackageName;
9161            this.manifestDigest = manifestDigest;
9162            this.user = user;
9163            this.instructionSets = instructionSets;
9164            this.abiOverride = abiOverride;
9165        }
9166
9167        abstract int copyApk(IMediaContainerService imcs, boolean temp) throws RemoteException;
9168        abstract int doPreInstall(int status);
9169
9170        /**
9171         * Rename package into final resting place. All paths on the given
9172         * scanned package should be updated to reflect the rename.
9173         */
9174        abstract boolean doRename(int status, PackageParser.Package pkg, String oldCodePath);
9175        abstract int doPostInstall(int status, int uid);
9176
9177        /** @see PackageSettingBase#codePathString */
9178        abstract String getCodePath();
9179        /** @see PackageSettingBase#resourcePathString */
9180        abstract String getResourcePath();
9181        abstract String getLegacyNativeLibraryPath();
9182
9183        // Need installer lock especially for dex file removal.
9184        abstract void cleanUpResourcesLI();
9185        abstract boolean doPostDeleteLI(boolean delete);
9186        abstract boolean checkFreeStorage(IMediaContainerService imcs) throws RemoteException;
9187
9188        /**
9189         * Called before the source arguments are copied. This is used mostly
9190         * for MoveParams when it needs to read the source file to put it in the
9191         * destination.
9192         */
9193        int doPreCopy() {
9194            return PackageManager.INSTALL_SUCCEEDED;
9195        }
9196
9197        /**
9198         * Called after the source arguments are copied. This is used mostly for
9199         * MoveParams when it needs to read the source file to put it in the
9200         * destination.
9201         *
9202         * @return
9203         */
9204        int doPostCopy(int uid) {
9205            return PackageManager.INSTALL_SUCCEEDED;
9206        }
9207
9208        protected boolean isFwdLocked() {
9209            return (installFlags & PackageManager.INSTALL_FORWARD_LOCK) != 0;
9210        }
9211
9212        protected boolean isExternal() {
9213            return (installFlags & PackageManager.INSTALL_EXTERNAL) != 0;
9214        }
9215
9216        UserHandle getUser() {
9217            return user;
9218        }
9219    }
9220
9221    private void removeDexFiles(List<String> allCodePaths, String[] instructionSets) {
9222        if (!allCodePaths.isEmpty()) {
9223            if (instructionSets == null) {
9224                throw new IllegalStateException("instructionSet == null");
9225            }
9226            String[] dexCodeInstructionSets = getDexCodeInstructionSets(instructionSets);
9227            for (String codePath : allCodePaths) {
9228                for (String dexCodeInstructionSet : dexCodeInstructionSets) {
9229                    int retCode = mInstaller.rmdex(codePath, dexCodeInstructionSet);
9230                    if (retCode < 0) {
9231                        Slog.w(TAG, "Couldn't remove dex file for package: "
9232                                + " at location " + codePath + ", retcode=" + retCode);
9233                        // we don't consider this to be a failure of the core package deletion
9234                    }
9235                }
9236            }
9237        }
9238    }
9239
9240    /**
9241     * Logic to handle installation of non-ASEC applications, including copying
9242     * and renaming logic.
9243     */
9244    class FileInstallArgs extends InstallArgs {
9245        private File codeFile;
9246        private File resourceFile;
9247        private File legacyNativeLibraryPath;
9248
9249        // Example topology:
9250        // /data/app/com.example/base.apk
9251        // /data/app/com.example/split_foo.apk
9252        // /data/app/com.example/lib/arm/libfoo.so
9253        // /data/app/com.example/lib/arm64/libfoo.so
9254        // /data/app/com.example/dalvik/arm/base.apk@classes.dex
9255
9256        /** New install */
9257        FileInstallArgs(InstallParams params) {
9258            super(params.origin, params.observer, params.installFlags,
9259                    params.installerPackageName, params.getManifestDigest(), params.getUser(),
9260                    null /* instruction sets */, params.packageAbiOverride);
9261            if (isFwdLocked()) {
9262                throw new IllegalArgumentException("Forward locking only supported in ASEC");
9263            }
9264        }
9265
9266        /** Existing install */
9267        FileInstallArgs(String codePath, String resourcePath, String legacyNativeLibraryPath,
9268                String[] instructionSets) {
9269            super(OriginInfo.fromNothing(), null, 0, null, null, null, instructionSets, null);
9270            this.codeFile = (codePath != null) ? new File(codePath) : null;
9271            this.resourceFile = (resourcePath != null) ? new File(resourcePath) : null;
9272            this.legacyNativeLibraryPath = (legacyNativeLibraryPath != null) ?
9273                    new File(legacyNativeLibraryPath) : null;
9274        }
9275
9276        boolean checkFreeStorage(IMediaContainerService imcs) throws RemoteException {
9277            final long sizeBytes = imcs.calculateInstalledSize(origin.file.getAbsolutePath(),
9278                    isFwdLocked(), abiOverride);
9279
9280            final StorageManager storage = StorageManager.from(mContext);
9281            return (sizeBytes <= storage.getStorageBytesUntilLow(Environment.getDataDirectory()));
9282        }
9283
9284        int copyApk(IMediaContainerService imcs, boolean temp) throws RemoteException {
9285            if (origin.staged) {
9286                Slog.d(TAG, origin.file + " already staged; skipping copy");
9287                codeFile = origin.file;
9288                resourceFile = origin.file;
9289                return PackageManager.INSTALL_SUCCEEDED;
9290            }
9291
9292            try {
9293                final File tempDir = mInstallerService.allocateInternalStageDirLegacy();
9294                codeFile = tempDir;
9295                resourceFile = tempDir;
9296            } catch (IOException e) {
9297                Slog.w(TAG, "Failed to create copy file: " + e);
9298                return PackageManager.INSTALL_FAILED_INSUFFICIENT_STORAGE;
9299            }
9300
9301            final IParcelFileDescriptorFactory target = new IParcelFileDescriptorFactory.Stub() {
9302                @Override
9303                public ParcelFileDescriptor open(String name, int mode) throws RemoteException {
9304                    if (!FileUtils.isValidExtFilename(name)) {
9305                        throw new IllegalArgumentException("Invalid filename: " + name);
9306                    }
9307                    try {
9308                        final File file = new File(codeFile, name);
9309                        final FileDescriptor fd = Os.open(file.getAbsolutePath(),
9310                                O_RDWR | O_CREAT, 0644);
9311                        Os.chmod(file.getAbsolutePath(), 0644);
9312                        return new ParcelFileDescriptor(fd);
9313                    } catch (ErrnoException e) {
9314                        throw new RemoteException("Failed to open: " + e.getMessage());
9315                    }
9316                }
9317            };
9318
9319            int ret = PackageManager.INSTALL_SUCCEEDED;
9320            ret = imcs.copyPackage(origin.file.getAbsolutePath(), target);
9321            if (ret != PackageManager.INSTALL_SUCCEEDED) {
9322                Slog.e(TAG, "Failed to copy package");
9323                return ret;
9324            }
9325
9326            final File libraryRoot = new File(codeFile, LIB_DIR_NAME);
9327            NativeLibraryHelper.Handle handle = null;
9328            try {
9329                handle = NativeLibraryHelper.Handle.create(codeFile);
9330                ret = NativeLibraryHelper.copyNativeBinariesWithOverride(handle, libraryRoot,
9331                        abiOverride);
9332            } catch (IOException e) {
9333                Slog.e(TAG, "Copying native libraries failed", e);
9334                ret = PackageManager.INSTALL_FAILED_INTERNAL_ERROR;
9335            } finally {
9336                IoUtils.closeQuietly(handle);
9337            }
9338
9339            return ret;
9340        }
9341
9342        int doPreInstall(int status) {
9343            if (status != PackageManager.INSTALL_SUCCEEDED) {
9344                cleanUp();
9345            }
9346            return status;
9347        }
9348
9349        boolean doRename(int status, PackageParser.Package pkg, String oldCodePath) {
9350            if (status != PackageManager.INSTALL_SUCCEEDED) {
9351                cleanUp();
9352                return false;
9353            } else {
9354                final File beforeCodeFile = codeFile;
9355                final File afterCodeFile = getNextCodePath(pkg.packageName);
9356
9357                Slog.d(TAG, "Renaming " + beforeCodeFile + " to " + afterCodeFile);
9358                try {
9359                    Os.rename(beforeCodeFile.getAbsolutePath(), afterCodeFile.getAbsolutePath());
9360                } catch (ErrnoException e) {
9361                    Slog.d(TAG, "Failed to rename", e);
9362                    return false;
9363                }
9364
9365                if (!SELinux.restoreconRecursive(afterCodeFile)) {
9366                    Slog.d(TAG, "Failed to restorecon");
9367                    return false;
9368                }
9369
9370                // Reflect the rename internally
9371                codeFile = afterCodeFile;
9372                resourceFile = afterCodeFile;
9373
9374                // Reflect the rename in scanned details
9375                pkg.codePath = afterCodeFile.getAbsolutePath();
9376                pkg.baseCodePath = FileUtils.rewriteAfterRename(beforeCodeFile, afterCodeFile,
9377                        pkg.baseCodePath);
9378                pkg.splitCodePaths = FileUtils.rewriteAfterRename(beforeCodeFile, afterCodeFile,
9379                        pkg.splitCodePaths);
9380
9381                // Reflect the rename in app info
9382                pkg.applicationInfo.setCodePath(pkg.codePath);
9383                pkg.applicationInfo.setBaseCodePath(pkg.baseCodePath);
9384                pkg.applicationInfo.setSplitCodePaths(pkg.splitCodePaths);
9385                pkg.applicationInfo.setResourcePath(pkg.codePath);
9386                pkg.applicationInfo.setBaseResourcePath(pkg.baseCodePath);
9387                pkg.applicationInfo.setSplitResourcePaths(pkg.splitCodePaths);
9388
9389                return true;
9390            }
9391        }
9392
9393        int doPostInstall(int status, int uid) {
9394            if (status != PackageManager.INSTALL_SUCCEEDED) {
9395                cleanUp();
9396            }
9397            return status;
9398        }
9399
9400        @Override
9401        String getCodePath() {
9402            return (codeFile != null) ? codeFile.getAbsolutePath() : null;
9403        }
9404
9405        @Override
9406        String getResourcePath() {
9407            return (resourceFile != null) ? resourceFile.getAbsolutePath() : null;
9408        }
9409
9410        @Override
9411        String getLegacyNativeLibraryPath() {
9412            return (legacyNativeLibraryPath != null) ? legacyNativeLibraryPath.getAbsolutePath() : null;
9413        }
9414
9415        private boolean cleanUp() {
9416            if (codeFile == null || !codeFile.exists()) {
9417                return false;
9418            }
9419
9420            if (codeFile.isDirectory()) {
9421                mInstaller.rmPackageDir(codeFile.getAbsolutePath());
9422            } else {
9423                codeFile.delete();
9424            }
9425
9426            if (resourceFile != null && !FileUtils.contains(codeFile, resourceFile)) {
9427                resourceFile.delete();
9428            }
9429
9430            if (legacyNativeLibraryPath != null && !FileUtils.contains(codeFile, legacyNativeLibraryPath)) {
9431                if (!FileUtils.deleteContents(legacyNativeLibraryPath)) {
9432                    Slog.w(TAG, "Couldn't delete native library directory " + legacyNativeLibraryPath);
9433                }
9434                legacyNativeLibraryPath.delete();
9435            }
9436
9437            return true;
9438        }
9439
9440        void cleanUpResourcesLI() {
9441            // Try enumerating all code paths before deleting
9442            List<String> allCodePaths = Collections.EMPTY_LIST;
9443            if (codeFile != null && codeFile.exists()) {
9444                try {
9445                    final PackageLite pkg = PackageParser.parsePackageLite(codeFile, 0);
9446                    allCodePaths = pkg.getAllCodePaths();
9447                } catch (PackageParserException e) {
9448                    // Ignored; we tried our best
9449                }
9450            }
9451
9452            cleanUp();
9453            removeDexFiles(allCodePaths, instructionSets);
9454        }
9455
9456        boolean doPostDeleteLI(boolean delete) {
9457            // XXX err, shouldn't we respect the delete flag?
9458            cleanUpResourcesLI();
9459            return true;
9460        }
9461    }
9462
9463    private boolean isAsecExternal(String cid) {
9464        final String asecPath = PackageHelper.getSdFilesystem(cid);
9465        return !asecPath.startsWith(mAsecInternalPath);
9466    }
9467
9468    private static void maybeThrowExceptionForMultiArchCopy(String message, int copyRet) throws
9469            PackageManagerException {
9470        if (copyRet < 0) {
9471            if (copyRet != PackageManager.NO_NATIVE_LIBRARIES &&
9472                    copyRet != PackageManager.INSTALL_FAILED_NO_MATCHING_ABIS) {
9473                throw new PackageManagerException(copyRet, message);
9474            }
9475        }
9476    }
9477
9478    /**
9479     * Extract the MountService "container ID" from the full code path of an
9480     * .apk.
9481     */
9482    static String cidFromCodePath(String fullCodePath) {
9483        int eidx = fullCodePath.lastIndexOf("/");
9484        String subStr1 = fullCodePath.substring(0, eidx);
9485        int sidx = subStr1.lastIndexOf("/");
9486        return subStr1.substring(sidx+1, eidx);
9487    }
9488
9489    /**
9490     * Logic to handle installation of ASEC applications, including copying and
9491     * renaming logic.
9492     */
9493    class AsecInstallArgs extends InstallArgs {
9494        static final String RES_FILE_NAME = "pkg.apk";
9495        static final String PUBLIC_RES_FILE_NAME = "res.zip";
9496
9497        String cid;
9498        String packagePath;
9499        String resourcePath;
9500        String legacyNativeLibraryDir;
9501
9502        /** New install */
9503        AsecInstallArgs(InstallParams params) {
9504            super(params.origin, params.observer, params.installFlags,
9505                    params.installerPackageName, params.getManifestDigest(),
9506                    params.getUser(), null /* instruction sets */,
9507                    params.packageAbiOverride);
9508        }
9509
9510        /** Existing install */
9511        AsecInstallArgs(String fullCodePath, String[] instructionSets,
9512                        boolean isExternal, boolean isForwardLocked) {
9513            super(OriginInfo.fromNothing(), null, (isExternal ? INSTALL_EXTERNAL : 0)
9514                    | (isForwardLocked ? INSTALL_FORWARD_LOCK : 0), null, null, null,
9515                    instructionSets, null);
9516            // Hackily pretend we're still looking at a full code path
9517            if (!fullCodePath.endsWith(RES_FILE_NAME)) {
9518                fullCodePath = new File(fullCodePath, RES_FILE_NAME).getAbsolutePath();
9519            }
9520
9521            // Extract cid from fullCodePath
9522            int eidx = fullCodePath.lastIndexOf("/");
9523            String subStr1 = fullCodePath.substring(0, eidx);
9524            int sidx = subStr1.lastIndexOf("/");
9525            cid = subStr1.substring(sidx+1, eidx);
9526            setMountPath(subStr1);
9527        }
9528
9529        AsecInstallArgs(String cid, String[] instructionSets, boolean isForwardLocked) {
9530            super(OriginInfo.fromNothing(), null, (isAsecExternal(cid) ? INSTALL_EXTERNAL : 0)
9531                    | (isForwardLocked ? INSTALL_FORWARD_LOCK : 0), null, null, null,
9532                    instructionSets, null);
9533            this.cid = cid;
9534            setMountPath(PackageHelper.getSdDir(cid));
9535        }
9536
9537        void createCopyFile() {
9538            cid = mInstallerService.allocateExternalStageCidLegacy();
9539        }
9540
9541        boolean checkFreeStorage(IMediaContainerService imcs) throws RemoteException {
9542            final long sizeBytes = imcs.calculateInstalledSize(packagePath, isFwdLocked(),
9543                    abiOverride);
9544
9545            final File target;
9546            if (isExternal()) {
9547                target = new UserEnvironment(UserHandle.USER_OWNER).getExternalStorageDirectory();
9548            } else {
9549                target = Environment.getDataDirectory();
9550            }
9551
9552            final StorageManager storage = StorageManager.from(mContext);
9553            return (sizeBytes <= storage.getStorageBytesUntilLow(target));
9554        }
9555
9556        int copyApk(IMediaContainerService imcs, boolean temp) throws RemoteException {
9557            if (origin.staged) {
9558                Slog.d(TAG, origin.cid + " already staged; skipping copy");
9559                cid = origin.cid;
9560                setMountPath(PackageHelper.getSdDir(cid));
9561                return PackageManager.INSTALL_SUCCEEDED;
9562            }
9563
9564            if (temp) {
9565                createCopyFile();
9566            } else {
9567                /*
9568                 * Pre-emptively destroy the container since it's destroyed if
9569                 * copying fails due to it existing anyway.
9570                 */
9571                PackageHelper.destroySdDir(cid);
9572            }
9573
9574            final String newMountPath = imcs.copyPackageToContainer(
9575                    origin.file.getAbsolutePath(), cid, getEncryptKey(), isExternal(),
9576                    isFwdLocked(), deriveAbiOverride(abiOverride, null /* settings */));
9577
9578            if (newMountPath != null) {
9579                setMountPath(newMountPath);
9580                return PackageManager.INSTALL_SUCCEEDED;
9581            } else {
9582                return PackageManager.INSTALL_FAILED_CONTAINER_ERROR;
9583            }
9584        }
9585
9586        @Override
9587        String getCodePath() {
9588            return packagePath;
9589        }
9590
9591        @Override
9592        String getResourcePath() {
9593            return resourcePath;
9594        }
9595
9596        @Override
9597        String getLegacyNativeLibraryPath() {
9598            return legacyNativeLibraryDir;
9599        }
9600
9601        int doPreInstall(int status) {
9602            if (status != PackageManager.INSTALL_SUCCEEDED) {
9603                // Destroy container
9604                PackageHelper.destroySdDir(cid);
9605            } else {
9606                boolean mounted = PackageHelper.isContainerMounted(cid);
9607                if (!mounted) {
9608                    String newMountPath = PackageHelper.mountSdDir(cid, getEncryptKey(),
9609                            Process.SYSTEM_UID);
9610                    if (newMountPath != null) {
9611                        setMountPath(newMountPath);
9612                    } else {
9613                        return PackageManager.INSTALL_FAILED_CONTAINER_ERROR;
9614                    }
9615                }
9616            }
9617            return status;
9618        }
9619
9620        boolean doRename(int status, PackageParser.Package pkg, String oldCodePath) {
9621            String newCacheId = getNextCodePath(oldCodePath, pkg.packageName, "/" + RES_FILE_NAME);
9622            String newMountPath = null;
9623            if (PackageHelper.isContainerMounted(cid)) {
9624                // Unmount the container
9625                if (!PackageHelper.unMountSdDir(cid)) {
9626                    Slog.i(TAG, "Failed to unmount " + cid + " before renaming");
9627                    return false;
9628                }
9629            }
9630            if (!PackageHelper.renameSdDir(cid, newCacheId)) {
9631                Slog.e(TAG, "Failed to rename " + cid + " to " + newCacheId +
9632                        " which might be stale. Will try to clean up.");
9633                // Clean up the stale container and proceed to recreate.
9634                if (!PackageHelper.destroySdDir(newCacheId)) {
9635                    Slog.e(TAG, "Very strange. Cannot clean up stale container " + newCacheId);
9636                    return false;
9637                }
9638                // Successfully cleaned up stale container. Try to rename again.
9639                if (!PackageHelper.renameSdDir(cid, newCacheId)) {
9640                    Slog.e(TAG, "Failed to rename " + cid + " to " + newCacheId
9641                            + " inspite of cleaning it up.");
9642                    return false;
9643                }
9644            }
9645            if (!PackageHelper.isContainerMounted(newCacheId)) {
9646                Slog.w(TAG, "Mounting container " + newCacheId);
9647                newMountPath = PackageHelper.mountSdDir(newCacheId,
9648                        getEncryptKey(), Process.SYSTEM_UID);
9649            } else {
9650                newMountPath = PackageHelper.getSdDir(newCacheId);
9651            }
9652            if (newMountPath == null) {
9653                Slog.w(TAG, "Failed to get cache path for  " + newCacheId);
9654                return false;
9655            }
9656            Log.i(TAG, "Succesfully renamed " + cid +
9657                    " to " + newCacheId +
9658                    " at new path: " + newMountPath);
9659            cid = newCacheId;
9660
9661            final File beforeCodeFile = new File(packagePath);
9662            setMountPath(newMountPath);
9663            final File afterCodeFile = new File(packagePath);
9664
9665            // Reflect the rename in scanned details
9666            pkg.codePath = afterCodeFile.getAbsolutePath();
9667            pkg.baseCodePath = FileUtils.rewriteAfterRename(beforeCodeFile, afterCodeFile,
9668                    pkg.baseCodePath);
9669            pkg.splitCodePaths = FileUtils.rewriteAfterRename(beforeCodeFile, afterCodeFile,
9670                    pkg.splitCodePaths);
9671
9672            // Reflect the rename in app info
9673            pkg.applicationInfo.setCodePath(pkg.codePath);
9674            pkg.applicationInfo.setBaseCodePath(pkg.baseCodePath);
9675            pkg.applicationInfo.setSplitCodePaths(pkg.splitCodePaths);
9676            pkg.applicationInfo.setResourcePath(pkg.codePath);
9677            pkg.applicationInfo.setBaseResourcePath(pkg.baseCodePath);
9678            pkg.applicationInfo.setSplitResourcePaths(pkg.splitCodePaths);
9679
9680            return true;
9681        }
9682
9683        private void setMountPath(String mountPath) {
9684            final File mountFile = new File(mountPath);
9685
9686            final File monolithicFile = new File(mountFile, RES_FILE_NAME);
9687            if (monolithicFile.exists()) {
9688                packagePath = monolithicFile.getAbsolutePath();
9689                if (isFwdLocked()) {
9690                    resourcePath = new File(mountFile, PUBLIC_RES_FILE_NAME).getAbsolutePath();
9691                } else {
9692                    resourcePath = packagePath;
9693                }
9694            } else {
9695                packagePath = mountFile.getAbsolutePath();
9696                resourcePath = packagePath;
9697            }
9698
9699            legacyNativeLibraryDir = new File(mountFile, LIB_DIR_NAME).getAbsolutePath();
9700        }
9701
9702        int doPostInstall(int status, int uid) {
9703            if (status != PackageManager.INSTALL_SUCCEEDED) {
9704                cleanUp();
9705            } else {
9706                final int groupOwner;
9707                final String protectedFile;
9708                if (isFwdLocked()) {
9709                    groupOwner = UserHandle.getSharedAppGid(uid);
9710                    protectedFile = RES_FILE_NAME;
9711                } else {
9712                    groupOwner = -1;
9713                    protectedFile = null;
9714                }
9715
9716                if (uid < Process.FIRST_APPLICATION_UID
9717                        || !PackageHelper.fixSdPermissions(cid, groupOwner, protectedFile)) {
9718                    Slog.e(TAG, "Failed to finalize " + cid);
9719                    PackageHelper.destroySdDir(cid);
9720                    return PackageManager.INSTALL_FAILED_CONTAINER_ERROR;
9721                }
9722
9723                boolean mounted = PackageHelper.isContainerMounted(cid);
9724                if (!mounted) {
9725                    PackageHelper.mountSdDir(cid, getEncryptKey(), Process.myUid());
9726                }
9727            }
9728            return status;
9729        }
9730
9731        private void cleanUp() {
9732            if (DEBUG_SD_INSTALL) Slog.i(TAG, "cleanUp");
9733
9734            // Destroy secure container
9735            PackageHelper.destroySdDir(cid);
9736        }
9737
9738        private List<String> getAllCodePaths() {
9739            final File codeFile = new File(getCodePath());
9740            if (codeFile != null && codeFile.exists()) {
9741                try {
9742                    final PackageLite pkg = PackageParser.parsePackageLite(codeFile, 0);
9743                    return pkg.getAllCodePaths();
9744                } catch (PackageParserException e) {
9745                    // Ignored; we tried our best
9746                }
9747            }
9748            return Collections.EMPTY_LIST;
9749        }
9750
9751        void cleanUpResourcesLI() {
9752            // Enumerate all code paths before deleting
9753            cleanUpResourcesLI(getAllCodePaths());
9754        }
9755
9756        private void cleanUpResourcesLI(List<String> allCodePaths) {
9757            cleanUp();
9758            removeDexFiles(allCodePaths, instructionSets);
9759        }
9760
9761
9762
9763        String getPackageName() {
9764            return getAsecPackageName(cid);
9765        }
9766
9767        boolean doPostDeleteLI(boolean delete) {
9768            if (DEBUG_SD_INSTALL) Slog.i(TAG, "doPostDeleteLI() del=" + delete);
9769            final List<String> allCodePaths = getAllCodePaths();
9770            boolean mounted = PackageHelper.isContainerMounted(cid);
9771            if (mounted) {
9772                // Unmount first
9773                if (PackageHelper.unMountSdDir(cid)) {
9774                    mounted = false;
9775                }
9776            }
9777            if (!mounted && delete) {
9778                cleanUpResourcesLI(allCodePaths);
9779            }
9780            return !mounted;
9781        }
9782
9783        @Override
9784        int doPreCopy() {
9785            if (isFwdLocked()) {
9786                if (!PackageHelper.fixSdPermissions(cid,
9787                        getPackageUid(DEFAULT_CONTAINER_PACKAGE, 0), RES_FILE_NAME)) {
9788                    return PackageManager.INSTALL_FAILED_CONTAINER_ERROR;
9789                }
9790            }
9791
9792            return PackageManager.INSTALL_SUCCEEDED;
9793        }
9794
9795        @Override
9796        int doPostCopy(int uid) {
9797            if (isFwdLocked()) {
9798                if (uid < Process.FIRST_APPLICATION_UID
9799                        || !PackageHelper.fixSdPermissions(cid, UserHandle.getSharedAppGid(uid),
9800                                RES_FILE_NAME)) {
9801                    Slog.e(TAG, "Failed to finalize " + cid);
9802                    PackageHelper.destroySdDir(cid);
9803                    return PackageManager.INSTALL_FAILED_CONTAINER_ERROR;
9804                }
9805            }
9806
9807            return PackageManager.INSTALL_SUCCEEDED;
9808        }
9809    }
9810
9811    static String getAsecPackageName(String packageCid) {
9812        int idx = packageCid.lastIndexOf("-");
9813        if (idx == -1) {
9814            return packageCid;
9815        }
9816        return packageCid.substring(0, idx);
9817    }
9818
9819    // Utility method used to create code paths based on package name and available index.
9820    private static String getNextCodePath(String oldCodePath, String prefix, String suffix) {
9821        String idxStr = "";
9822        int idx = 1;
9823        // Fall back to default value of idx=1 if prefix is not
9824        // part of oldCodePath
9825        if (oldCodePath != null) {
9826            String subStr = oldCodePath;
9827            // Drop the suffix right away
9828            if (suffix != null && subStr.endsWith(suffix)) {
9829                subStr = subStr.substring(0, subStr.length() - suffix.length());
9830            }
9831            // If oldCodePath already contains prefix find out the
9832            // ending index to either increment or decrement.
9833            int sidx = subStr.lastIndexOf(prefix);
9834            if (sidx != -1) {
9835                subStr = subStr.substring(sidx + prefix.length());
9836                if (subStr != null) {
9837                    if (subStr.startsWith(INSTALL_PACKAGE_SUFFIX)) {
9838                        subStr = subStr.substring(INSTALL_PACKAGE_SUFFIX.length());
9839                    }
9840                    try {
9841                        idx = Integer.parseInt(subStr);
9842                        if (idx <= 1) {
9843                            idx++;
9844                        } else {
9845                            idx--;
9846                        }
9847                    } catch(NumberFormatException e) {
9848                    }
9849                }
9850            }
9851        }
9852        idxStr = INSTALL_PACKAGE_SUFFIX + Integer.toString(idx);
9853        return prefix + idxStr;
9854    }
9855
9856    private File getNextCodePath(String packageName) {
9857        int suffix = 1;
9858        File result;
9859        do {
9860            result = new File(mAppInstallDir, packageName + "-" + suffix);
9861            suffix++;
9862        } while (result.exists());
9863        return result;
9864    }
9865
9866    // Utility method that returns the relative package path with respect
9867    // to the installation directory. Like say for /data/data/com.test-1.apk
9868    // string com.test-1 is returned.
9869    static String deriveCodePathName(String codePath) {
9870        if (codePath == null) {
9871            return null;
9872        }
9873        final File codeFile = new File(codePath);
9874        final String name = codeFile.getName();
9875        if (codeFile.isDirectory()) {
9876            return name;
9877        } else if (name.endsWith(".apk") || name.endsWith(".tmp")) {
9878            final int lastDot = name.lastIndexOf('.');
9879            return name.substring(0, lastDot);
9880        } else {
9881            Slog.w(TAG, "Odd, " + codePath + " doesn't look like an APK");
9882            return null;
9883        }
9884    }
9885
9886    class PackageInstalledInfo {
9887        String name;
9888        int uid;
9889        // The set of users that originally had this package installed.
9890        int[] origUsers;
9891        // The set of users that now have this package installed.
9892        int[] newUsers;
9893        PackageParser.Package pkg;
9894        int returnCode;
9895        String returnMsg;
9896        PackageRemovedInfo removedInfo;
9897
9898        public void setError(int code, String msg) {
9899            returnCode = code;
9900            returnMsg = msg;
9901            Slog.w(TAG, msg);
9902        }
9903
9904        public void setError(String msg, PackageParserException e) {
9905            returnCode = e.error;
9906            returnMsg = ExceptionUtils.getCompleteMessage(msg, e);
9907            Slog.w(TAG, msg, e);
9908        }
9909
9910        public void setError(String msg, PackageManagerException e) {
9911            returnCode = e.error;
9912            returnMsg = ExceptionUtils.getCompleteMessage(msg, e);
9913            Slog.w(TAG, msg, e);
9914        }
9915
9916        // In some error cases we want to convey more info back to the observer
9917        String origPackage;
9918        String origPermission;
9919    }
9920
9921    /*
9922     * Install a non-existing package.
9923     */
9924    private void installNewPackageLI(PackageParser.Package pkg,
9925            int parseFlags, int scanFlags, UserHandle user,
9926            String installerPackageName, PackageInstalledInfo res) {
9927        // Remember this for later, in case we need to rollback this install
9928        String pkgName = pkg.packageName;
9929
9930        if (DEBUG_INSTALL) Slog.d(TAG, "installNewPackageLI: " + pkg);
9931        boolean dataDirExists = getDataPathForPackage(pkg.packageName, 0).exists();
9932        synchronized(mPackages) {
9933            if (mSettings.mRenamedPackages.containsKey(pkgName)) {
9934                // A package with the same name is already installed, though
9935                // it has been renamed to an older name.  The package we
9936                // are trying to install should be installed as an update to
9937                // the existing one, but that has not been requested, so bail.
9938                res.setError(INSTALL_FAILED_ALREADY_EXISTS, "Attempt to re-install " + pkgName
9939                        + " without first uninstalling package running as "
9940                        + mSettings.mRenamedPackages.get(pkgName));
9941                return;
9942            }
9943            if (mPackages.containsKey(pkgName)) {
9944                // Don't allow installation over an existing package with the same name.
9945                res.setError(INSTALL_FAILED_ALREADY_EXISTS, "Attempt to re-install " + pkgName
9946                        + " without first uninstalling.");
9947                return;
9948            }
9949        }
9950
9951        try {
9952            PackageParser.Package newPackage = scanPackageLI(pkg, parseFlags, scanFlags,
9953                    System.currentTimeMillis(), user);
9954
9955            updateSettingsLI(newPackage, installerPackageName, null, null, res);
9956            // delete the partially installed application. the data directory will have to be
9957            // restored if it was already existing
9958            if (res.returnCode != PackageManager.INSTALL_SUCCEEDED) {
9959                // remove package from internal structures.  Note that we want deletePackageX to
9960                // delete the package data and cache directories that it created in
9961                // scanPackageLocked, unless those directories existed before we even tried to
9962                // install.
9963                deletePackageLI(pkgName, UserHandle.ALL, false, null, null,
9964                        dataDirExists ? PackageManager.DELETE_KEEP_DATA : 0,
9965                                res.removedInfo, true);
9966            }
9967
9968        } catch (PackageManagerException e) {
9969            res.setError("Package couldn't be installed in " + pkg.codePath, e);
9970        }
9971    }
9972
9973    private boolean checkUpgradeKeySetLP(PackageSetting oldPS, PackageParser.Package newPkg) {
9974        // Upgrade keysets are being used.  Determine if new package has a superset of the
9975        // required keys.
9976        long[] upgradeKeySets = oldPS.keySetData.getUpgradeKeySets();
9977        KeySetManagerService ksms = mSettings.mKeySetManagerService;
9978        for (int i = 0; i < upgradeKeySets.length; i++) {
9979            Set<PublicKey> upgradeSet = ksms.getPublicKeysFromKeySetLPr(upgradeKeySets[i]);
9980            if (newPkg.mSigningKeys.containsAll(upgradeSet)) {
9981                return true;
9982            }
9983        }
9984        return false;
9985    }
9986
9987    private void replacePackageLI(PackageParser.Package pkg,
9988            int parseFlags, int scanFlags, UserHandle user,
9989            String installerPackageName, PackageInstalledInfo res) {
9990        PackageParser.Package oldPackage;
9991        String pkgName = pkg.packageName;
9992        int[] allUsers;
9993        boolean[] perUserInstalled;
9994
9995        // First find the old package info and check signatures
9996        synchronized(mPackages) {
9997            oldPackage = mPackages.get(pkgName);
9998            if (DEBUG_INSTALL) Slog.d(TAG, "replacePackageLI: new=" + pkg + ", old=" + oldPackage);
9999            PackageSetting ps = mSettings.mPackages.get(pkgName);
10000            if (ps == null || !ps.keySetData.isUsingUpgradeKeySets() || ps.sharedUser != null) {
10001                // default to original signature matching
10002                if (compareSignatures(oldPackage.mSignatures, pkg.mSignatures)
10003                    != PackageManager.SIGNATURE_MATCH) {
10004                    res.setError(INSTALL_FAILED_UPDATE_INCOMPATIBLE,
10005                            "New package has a different signature: " + pkgName);
10006                    return;
10007                }
10008            } else {
10009                if(!checkUpgradeKeySetLP(ps, pkg)) {
10010                    res.setError(INSTALL_FAILED_UPDATE_INCOMPATIBLE,
10011                            "New package not signed by keys specified by upgrade-keysets: "
10012                            + pkgName);
10013                    return;
10014                }
10015            }
10016
10017            // In case of rollback, remember per-user/profile install state
10018            allUsers = sUserManager.getUserIds();
10019            perUserInstalled = new boolean[allUsers.length];
10020            for (int i = 0; i < allUsers.length; i++) {
10021                perUserInstalled[i] = ps != null ? ps.getInstalled(allUsers[i]) : false;
10022            }
10023        }
10024
10025        boolean sysPkg = (isSystemApp(oldPackage));
10026        if (sysPkg) {
10027            replaceSystemPackageLI(oldPackage, pkg, parseFlags, scanFlags,
10028                    user, allUsers, perUserInstalled, installerPackageName, res);
10029        } else {
10030            replaceNonSystemPackageLI(oldPackage, pkg, parseFlags, scanFlags,
10031                    user, allUsers, perUserInstalled, installerPackageName, res);
10032        }
10033    }
10034
10035    private void replaceNonSystemPackageLI(PackageParser.Package deletedPackage,
10036            PackageParser.Package pkg, int parseFlags, int scanFlags, UserHandle user,
10037            int[] allUsers, boolean[] perUserInstalled,
10038            String installerPackageName, PackageInstalledInfo res) {
10039        String pkgName = deletedPackage.packageName;
10040        boolean deletedPkg = true;
10041        boolean updatedSettings = false;
10042
10043        if (DEBUG_INSTALL) Slog.d(TAG, "replaceNonSystemPackageLI: new=" + pkg + ", old="
10044                + deletedPackage);
10045        long origUpdateTime;
10046        if (pkg.mExtras != null) {
10047            origUpdateTime = ((PackageSetting)pkg.mExtras).lastUpdateTime;
10048        } else {
10049            origUpdateTime = 0;
10050        }
10051
10052        // First delete the existing package while retaining the data directory
10053        if (!deletePackageLI(pkgName, null, true, null, null, PackageManager.DELETE_KEEP_DATA,
10054                res.removedInfo, true)) {
10055            // If the existing package wasn't successfully deleted
10056            res.setError(INSTALL_FAILED_REPLACE_COULDNT_DELETE, "replaceNonSystemPackageLI");
10057            deletedPkg = false;
10058        } else {
10059            // Successfully deleted the old package; proceed with replace.
10060
10061            // If deleted package lived in a container, give users a chance to
10062            // relinquish resources before killing.
10063            if (deletedPackage.isForwardLocked() || isExternal(deletedPackage)) {
10064                if (DEBUG_INSTALL) {
10065                    Slog.i(TAG, "upgrading pkg " + deletedPackage + " is ASEC-hosted -> UNAVAILABLE");
10066                }
10067                final int[] uidArray = new int[] { deletedPackage.applicationInfo.uid };
10068                final ArrayList<String> pkgList = new ArrayList<String>(1);
10069                pkgList.add(deletedPackage.applicationInfo.packageName);
10070                sendResourcesChangedBroadcast(false, true, pkgList, uidArray, null);
10071            }
10072
10073            deleteCodeCacheDirsLI(pkgName);
10074            try {
10075                final PackageParser.Package newPackage = scanPackageLI(pkg, parseFlags,
10076                        scanFlags | SCAN_UPDATE_TIME, System.currentTimeMillis(), user);
10077                updateSettingsLI(newPackage, installerPackageName, allUsers, perUserInstalled, res);
10078                updatedSettings = true;
10079            } catch (PackageManagerException e) {
10080                res.setError("Package couldn't be installed in " + pkg.codePath, e);
10081            }
10082        }
10083
10084        if (res.returnCode != PackageManager.INSTALL_SUCCEEDED) {
10085            // remove package from internal structures.  Note that we want deletePackageX to
10086            // delete the package data and cache directories that it created in
10087            // scanPackageLocked, unless those directories existed before we even tried to
10088            // install.
10089            if(updatedSettings) {
10090                if (DEBUG_INSTALL) Slog.d(TAG, "Install failed, rolling pack: " + pkgName);
10091                deletePackageLI(
10092                        pkgName, null, true, allUsers, perUserInstalled,
10093                        PackageManager.DELETE_KEEP_DATA,
10094                                res.removedInfo, true);
10095            }
10096            // Since we failed to install the new package we need to restore the old
10097            // package that we deleted.
10098            if (deletedPkg) {
10099                if (DEBUG_INSTALL) Slog.d(TAG, "Install failed, reinstalling: " + deletedPackage);
10100                File restoreFile = new File(deletedPackage.codePath);
10101                // Parse old package
10102                boolean oldOnSd = isExternal(deletedPackage);
10103                int oldParseFlags  = mDefParseFlags | PackageParser.PARSE_CHATTY |
10104                        (deletedPackage.isForwardLocked() ? PackageParser.PARSE_FORWARD_LOCK : 0) |
10105                        (oldOnSd ? PackageParser.PARSE_ON_SDCARD : 0);
10106                int oldScanFlags = SCAN_UPDATE_SIGNATURE | SCAN_UPDATE_TIME;
10107                try {
10108                    scanPackageLI(restoreFile, oldParseFlags, oldScanFlags, origUpdateTime, null);
10109                } catch (PackageManagerException e) {
10110                    Slog.e(TAG, "Failed to restore package : " + pkgName + " after failed upgrade: "
10111                            + e.getMessage());
10112                    return;
10113                }
10114                // Restore of old package succeeded. Update permissions.
10115                // writer
10116                synchronized (mPackages) {
10117                    updatePermissionsLPw(deletedPackage.packageName, deletedPackage,
10118                            UPDATE_PERMISSIONS_ALL);
10119                    // can downgrade to reader
10120                    mSettings.writeLPr();
10121                }
10122                Slog.i(TAG, "Successfully restored package : " + pkgName + " after failed upgrade");
10123            }
10124        }
10125    }
10126
10127    private void replaceSystemPackageLI(PackageParser.Package deletedPackage,
10128            PackageParser.Package pkg, int parseFlags, int scanFlags, UserHandle user,
10129            int[] allUsers, boolean[] perUserInstalled,
10130            String installerPackageName, PackageInstalledInfo res) {
10131        if (DEBUG_INSTALL) Slog.d(TAG, "replaceSystemPackageLI: new=" + pkg
10132                + ", old=" + deletedPackage);
10133        boolean disabledSystem = false;
10134        boolean updatedSettings = false;
10135        parseFlags |= PackageParser.PARSE_IS_SYSTEM;
10136        if ((deletedPackage.applicationInfo.privateFlags&ApplicationInfo.PRIVATE_FLAG_PRIVILEGED)
10137                != 0) {
10138            parseFlags |= PackageParser.PARSE_IS_PRIVILEGED;
10139        }
10140        String packageName = deletedPackage.packageName;
10141        if (packageName == null) {
10142            res.setError(INSTALL_FAILED_REPLACE_COULDNT_DELETE,
10143                    "Attempt to delete null packageName.");
10144            return;
10145        }
10146        PackageParser.Package oldPkg;
10147        PackageSetting oldPkgSetting;
10148        // reader
10149        synchronized (mPackages) {
10150            oldPkg = mPackages.get(packageName);
10151            oldPkgSetting = mSettings.mPackages.get(packageName);
10152            if((oldPkg == null) || (oldPkg.applicationInfo == null) ||
10153                    (oldPkgSetting == null)) {
10154                res.setError(INSTALL_FAILED_REPLACE_COULDNT_DELETE,
10155                        "Couldn't find package:" + packageName + " information");
10156                return;
10157            }
10158        }
10159
10160        killApplication(packageName, oldPkg.applicationInfo.uid, "replace sys pkg");
10161
10162        res.removedInfo.uid = oldPkg.applicationInfo.uid;
10163        res.removedInfo.removedPackage = packageName;
10164        // Remove existing system package
10165        removePackageLI(oldPkgSetting, true);
10166        // writer
10167        synchronized (mPackages) {
10168            disabledSystem = mSettings.disableSystemPackageLPw(packageName);
10169            if (!disabledSystem && deletedPackage != null) {
10170                // We didn't need to disable the .apk as a current system package,
10171                // which means we are replacing another update that is already
10172                // installed.  We need to make sure to delete the older one's .apk.
10173                res.removedInfo.args = createInstallArgsForExisting(0,
10174                        deletedPackage.applicationInfo.getCodePath(),
10175                        deletedPackage.applicationInfo.getResourcePath(),
10176                        deletedPackage.applicationInfo.nativeLibraryRootDir,
10177                        getAppDexInstructionSets(deletedPackage.applicationInfo));
10178            } else {
10179                res.removedInfo.args = null;
10180            }
10181        }
10182
10183        // Successfully disabled the old package. Now proceed with re-installation
10184        deleteCodeCacheDirsLI(packageName);
10185
10186        res.returnCode = PackageManager.INSTALL_SUCCEEDED;
10187        pkg.applicationInfo.flags |= ApplicationInfo.FLAG_UPDATED_SYSTEM_APP;
10188
10189        PackageParser.Package newPackage = null;
10190        try {
10191            newPackage = scanPackageLI(pkg, parseFlags, scanFlags, 0, user);
10192            if (newPackage.mExtras != null) {
10193                final PackageSetting newPkgSetting = (PackageSetting) newPackage.mExtras;
10194                newPkgSetting.firstInstallTime = oldPkgSetting.firstInstallTime;
10195                newPkgSetting.lastUpdateTime = System.currentTimeMillis();
10196
10197                // is the update attempting to change shared user? that isn't going to work...
10198                if (oldPkgSetting.sharedUser != newPkgSetting.sharedUser) {
10199                    res.setError(INSTALL_FAILED_SHARED_USER_INCOMPATIBLE,
10200                            "Forbidding shared user change from " + oldPkgSetting.sharedUser
10201                            + " to " + newPkgSetting.sharedUser);
10202                    updatedSettings = true;
10203                }
10204            }
10205
10206            if (res.returnCode == PackageManager.INSTALL_SUCCEEDED) {
10207                updateSettingsLI(newPackage, installerPackageName, allUsers, perUserInstalled, res);
10208                updatedSettings = true;
10209            }
10210
10211        } catch (PackageManagerException e) {
10212            res.setError("Package couldn't be installed in " + pkg.codePath, e);
10213        }
10214
10215        if (res.returnCode != PackageManager.INSTALL_SUCCEEDED) {
10216            // Re installation failed. Restore old information
10217            // Remove new pkg information
10218            if (newPackage != null) {
10219                removeInstalledPackageLI(newPackage, true);
10220            }
10221            // Add back the old system package
10222            try {
10223                scanPackageLI(oldPkg, parseFlags, SCAN_UPDATE_SIGNATURE, 0, user);
10224            } catch (PackageManagerException e) {
10225                Slog.e(TAG, "Failed to restore original package: " + e.getMessage());
10226            }
10227            // Restore the old system information in Settings
10228            synchronized (mPackages) {
10229                if (disabledSystem) {
10230                    mSettings.enableSystemPackageLPw(packageName);
10231                }
10232                if (updatedSettings) {
10233                    mSettings.setInstallerPackageName(packageName,
10234                            oldPkgSetting.installerPackageName);
10235                }
10236                mSettings.writeLPr();
10237            }
10238        }
10239    }
10240
10241    private void updateSettingsLI(PackageParser.Package newPackage, String installerPackageName,
10242            int[] allUsers, boolean[] perUserInstalled,
10243            PackageInstalledInfo res) {
10244        String pkgName = newPackage.packageName;
10245        synchronized (mPackages) {
10246            //write settings. the installStatus will be incomplete at this stage.
10247            //note that the new package setting would have already been
10248            //added to mPackages. It hasn't been persisted yet.
10249            mSettings.setInstallStatus(pkgName, PackageSettingBase.PKG_INSTALL_INCOMPLETE);
10250            mSettings.writeLPr();
10251        }
10252
10253        if (DEBUG_INSTALL) Slog.d(TAG, "New package installed in " + newPackage.codePath);
10254
10255        synchronized (mPackages) {
10256            updatePermissionsLPw(newPackage.packageName, newPackage,
10257                    UPDATE_PERMISSIONS_REPLACE_PKG | (newPackage.permissions.size() > 0
10258                            ? UPDATE_PERMISSIONS_ALL : 0));
10259            // For system-bundled packages, we assume that installing an upgraded version
10260            // of the package implies that the user actually wants to run that new code,
10261            // so we enable the package.
10262            if (isSystemApp(newPackage)) {
10263                // NB: implicit assumption that system package upgrades apply to all users
10264                if (DEBUG_INSTALL) {
10265                    Slog.d(TAG, "Implicitly enabling system package on upgrade: " + pkgName);
10266                }
10267                PackageSetting ps = mSettings.mPackages.get(pkgName);
10268                if (ps != null) {
10269                    if (res.origUsers != null) {
10270                        for (int userHandle : res.origUsers) {
10271                            ps.setEnabled(COMPONENT_ENABLED_STATE_DEFAULT,
10272                                    userHandle, installerPackageName);
10273                        }
10274                    }
10275                    // Also convey the prior install/uninstall state
10276                    if (allUsers != null && perUserInstalled != null) {
10277                        for (int i = 0; i < allUsers.length; i++) {
10278                            if (DEBUG_INSTALL) {
10279                                Slog.d(TAG, "    user " + allUsers[i]
10280                                        + " => " + perUserInstalled[i]);
10281                            }
10282                            ps.setInstalled(perUserInstalled[i], allUsers[i]);
10283                        }
10284                        // these install state changes will be persisted in the
10285                        // upcoming call to mSettings.writeLPr().
10286                    }
10287                }
10288            }
10289            res.name = pkgName;
10290            res.uid = newPackage.applicationInfo.uid;
10291            res.pkg = newPackage;
10292            mSettings.setInstallStatus(pkgName, PackageSettingBase.PKG_INSTALL_COMPLETE);
10293            mSettings.setInstallerPackageName(pkgName, installerPackageName);
10294            res.returnCode = PackageManager.INSTALL_SUCCEEDED;
10295            //to update install status
10296            mSettings.writeLPr();
10297        }
10298    }
10299
10300    private void installPackageLI(InstallArgs args, PackageInstalledInfo res) {
10301        final int installFlags = args.installFlags;
10302        String installerPackageName = args.installerPackageName;
10303        File tmpPackageFile = new File(args.getCodePath());
10304        boolean forwardLocked = ((installFlags & PackageManager.INSTALL_FORWARD_LOCK) != 0);
10305        boolean onSd = ((installFlags & PackageManager.INSTALL_EXTERNAL) != 0);
10306        boolean replace = false;
10307        int scanFlags = SCAN_NEW_INSTALL | SCAN_FORCE_DEX | SCAN_UPDATE_SIGNATURE;
10308        // Result object to be returned
10309        res.returnCode = PackageManager.INSTALL_SUCCEEDED;
10310
10311        if (DEBUG_INSTALL) Slog.d(TAG, "installPackageLI: path=" + tmpPackageFile);
10312        // Retrieve PackageSettings and parse package
10313        final int parseFlags = mDefParseFlags | PackageParser.PARSE_CHATTY
10314                | (forwardLocked ? PackageParser.PARSE_FORWARD_LOCK : 0)
10315                | (onSd ? PackageParser.PARSE_ON_SDCARD : 0);
10316        PackageParser pp = new PackageParser();
10317        pp.setSeparateProcesses(mSeparateProcesses);
10318        pp.setDisplayMetrics(mMetrics);
10319
10320        final PackageParser.Package pkg;
10321        try {
10322            pkg = pp.parsePackage(tmpPackageFile, parseFlags);
10323        } catch (PackageParserException e) {
10324            res.setError("Failed parse during installPackageLI", e);
10325            return;
10326        }
10327
10328        // Mark that we have an install time CPU ABI override.
10329        pkg.cpuAbiOverride = args.abiOverride;
10330
10331        String pkgName = res.name = pkg.packageName;
10332        if ((pkg.applicationInfo.flags&ApplicationInfo.FLAG_TEST_ONLY) != 0) {
10333            if ((installFlags & PackageManager.INSTALL_ALLOW_TEST) == 0) {
10334                res.setError(INSTALL_FAILED_TEST_ONLY, "installPackageLI");
10335                return;
10336            }
10337        }
10338
10339        try {
10340            pp.collectCertificates(pkg, parseFlags);
10341            pp.collectManifestDigest(pkg);
10342        } catch (PackageParserException e) {
10343            res.setError("Failed collect during installPackageLI", e);
10344            return;
10345        }
10346
10347        /* If the installer passed in a manifest digest, compare it now. */
10348        if (args.manifestDigest != null) {
10349            if (DEBUG_INSTALL) {
10350                final String parsedManifest = pkg.manifestDigest == null ? "null"
10351                        : pkg.manifestDigest.toString();
10352                Slog.d(TAG, "Comparing manifests: " + args.manifestDigest.toString() + " vs. "
10353                        + parsedManifest);
10354            }
10355
10356            if (!args.manifestDigest.equals(pkg.manifestDigest)) {
10357                res.setError(INSTALL_FAILED_PACKAGE_CHANGED, "Manifest digest changed");
10358                return;
10359            }
10360        } else if (DEBUG_INSTALL) {
10361            final String parsedManifest = pkg.manifestDigest == null
10362                    ? "null" : pkg.manifestDigest.toString();
10363            Slog.d(TAG, "manifestDigest was not present, but parser got: " + parsedManifest);
10364        }
10365
10366        // Get rid of all references to package scan path via parser.
10367        pp = null;
10368        String oldCodePath = null;
10369        boolean systemApp = false;
10370        synchronized (mPackages) {
10371            // Check if installing already existing package
10372            if ((installFlags & PackageManager.INSTALL_REPLACE_EXISTING) != 0) {
10373                String oldName = mSettings.mRenamedPackages.get(pkgName);
10374                if (pkg.mOriginalPackages != null
10375                        && pkg.mOriginalPackages.contains(oldName)
10376                        && mPackages.containsKey(oldName)) {
10377                    // This package is derived from an original package,
10378                    // and this device has been updating from that original
10379                    // name.  We must continue using the original name, so
10380                    // rename the new package here.
10381                    pkg.setPackageName(oldName);
10382                    pkgName = pkg.packageName;
10383                    replace = true;
10384                    if (DEBUG_INSTALL) Slog.d(TAG, "Replacing existing renamed package: oldName="
10385                            + oldName + " pkgName=" + pkgName);
10386                } else if (mPackages.containsKey(pkgName)) {
10387                    // This package, under its official name, already exists
10388                    // on the device; we should replace it.
10389                    replace = true;
10390                    if (DEBUG_INSTALL) Slog.d(TAG, "Replace existing pacakge: " + pkgName);
10391                }
10392            }
10393
10394            PackageSetting ps = mSettings.mPackages.get(pkgName);
10395            if (ps != null) {
10396                if (DEBUG_INSTALL) Slog.d(TAG, "Existing package: " + ps);
10397
10398                // Quick sanity check that we're signed correctly if updating;
10399                // we'll check this again later when scanning, but we want to
10400                // bail early here before tripping over redefined permissions.
10401                if (!ps.keySetData.isUsingUpgradeKeySets() || ps.sharedUser != null) {
10402                    try {
10403                        verifySignaturesLP(ps, pkg);
10404                    } catch (PackageManagerException e) {
10405                        res.setError(e.error, e.getMessage());
10406                        return;
10407                    }
10408                } else {
10409                    if (!checkUpgradeKeySetLP(ps, pkg)) {
10410                        res.setError(INSTALL_FAILED_UPDATE_INCOMPATIBLE, "Package "
10411                                + pkg.packageName + " upgrade keys do not match the "
10412                                + "previously installed version");
10413                        return;
10414                    }
10415                }
10416
10417                oldCodePath = mSettings.mPackages.get(pkgName).codePathString;
10418                if (ps.pkg != null && ps.pkg.applicationInfo != null) {
10419                    systemApp = (ps.pkg.applicationInfo.flags &
10420                            ApplicationInfo.FLAG_SYSTEM) != 0;
10421                }
10422                res.origUsers = ps.queryInstalledUsers(sUserManager.getUserIds(), true);
10423            }
10424
10425            // Check whether the newly-scanned package wants to define an already-defined perm
10426            int N = pkg.permissions.size();
10427            for (int i = N-1; i >= 0; i--) {
10428                PackageParser.Permission perm = pkg.permissions.get(i);
10429                BasePermission bp = mSettings.mPermissions.get(perm.info.name);
10430                if (bp != null) {
10431                    // If the defining package is signed with our cert, it's okay.  This
10432                    // also includes the "updating the same package" case, of course.
10433                    // "updating same package" could also involve key-rotation.
10434                    final boolean sigsOk;
10435                    if (!bp.sourcePackage.equals(pkg.packageName)
10436                            || !(bp.packageSetting instanceof PackageSetting)
10437                            || !bp.packageSetting.keySetData.isUsingUpgradeKeySets()
10438                            || ((PackageSetting) bp.packageSetting).sharedUser != null) {
10439                        sigsOk = compareSignatures(bp.packageSetting.signatures.mSignatures,
10440                                pkg.mSignatures) == PackageManager.SIGNATURE_MATCH;
10441                    } else {
10442                        sigsOk = checkUpgradeKeySetLP((PackageSetting) bp.packageSetting, pkg);
10443                    }
10444                    if (!sigsOk) {
10445                        // If the owning package is the system itself, we log but allow
10446                        // install to proceed; we fail the install on all other permission
10447                        // redefinitions.
10448                        if (!bp.sourcePackage.equals("android")) {
10449                            res.setError(INSTALL_FAILED_DUPLICATE_PERMISSION, "Package "
10450                                    + pkg.packageName + " attempting to redeclare permission "
10451                                    + perm.info.name + " already owned by " + bp.sourcePackage);
10452                            res.origPermission = perm.info.name;
10453                            res.origPackage = bp.sourcePackage;
10454                            return;
10455                        } else {
10456                            Slog.w(TAG, "Package " + pkg.packageName
10457                                    + " attempting to redeclare system permission "
10458                                    + perm.info.name + "; ignoring new declaration");
10459                            pkg.permissions.remove(i);
10460                        }
10461                    }
10462                }
10463            }
10464
10465        }
10466
10467        if (systemApp && onSd) {
10468            // Disable updates to system apps on sdcard
10469            res.setError(INSTALL_FAILED_INVALID_INSTALL_LOCATION,
10470                    "Cannot install updates to system apps on sdcard");
10471            return;
10472        }
10473
10474        // If app directory is not writable, dexopt will be called after the rename
10475        if (!forwardLocked && pkg.applicationInfo.isInternal()) {
10476            // Enable SCAN_NO_DEX flag to skip dexopt at a later stage
10477            scanFlags |= SCAN_NO_DEX;
10478            try {
10479                deriveNonSystemPackageAbi(pkg, new File(pkg.codePath), args.abiOverride,
10480                        true /* extract libs */);
10481            } catch (PackageManagerException pme) {
10482                Slog.e(TAG, "Error deriving application ABI", pme);
10483                res.setError(INSTALL_FAILED_INTERNAL_ERROR, "Error deriving application ABI");
10484                return;
10485            }
10486
10487            // Run dexopt before old package gets removed, to minimize time when app is unavailable
10488            int result = mPackageDexOptimizer
10489                    .performDexOpt(pkg, null /* instruction sets */, true /* forceDex */,
10490                            false /* defer */, false /* inclDependencies */,
10491                            true /* boot complete */);
10492            if (result == PackageDexOptimizer.DEX_OPT_FAILED) {
10493                res.setError(INSTALL_FAILED_DEXOPT, "Dexopt failed for " + pkg.codePath);
10494                return;
10495            }
10496        }
10497
10498        if (!args.doRename(res.returnCode, pkg, oldCodePath)) {
10499            res.setError(INSTALL_FAILED_INSUFFICIENT_STORAGE, "Failed rename");
10500            return;
10501        }
10502
10503        if (replace) {
10504            replacePackageLI(pkg, parseFlags, scanFlags | SCAN_REPLACING, args.user,
10505                    installerPackageName, res);
10506        } else {
10507            installNewPackageLI(pkg, parseFlags, scanFlags | SCAN_DELETE_DATA_ON_FAILURES,
10508                    args.user, installerPackageName, res);
10509        }
10510        synchronized (mPackages) {
10511            final PackageSetting ps = mSettings.mPackages.get(pkgName);
10512            if (ps != null) {
10513                res.newUsers = ps.queryInstalledUsers(sUserManager.getUserIds(), true);
10514            }
10515        }
10516    }
10517
10518    private static boolean isMultiArch(PackageSetting ps) {
10519        return (ps.pkgFlags & ApplicationInfo.FLAG_MULTIARCH) != 0;
10520    }
10521
10522    private static boolean isMultiArch(ApplicationInfo info) {
10523        return (info.flags & ApplicationInfo.FLAG_MULTIARCH) != 0;
10524    }
10525
10526    private static boolean isExternal(PackageParser.Package pkg) {
10527        return (pkg.applicationInfo.flags & ApplicationInfo.FLAG_EXTERNAL_STORAGE) != 0;
10528    }
10529
10530    private static boolean isExternal(PackageSetting ps) {
10531        return (ps.pkgFlags & ApplicationInfo.FLAG_EXTERNAL_STORAGE) != 0;
10532    }
10533
10534    private static boolean isExternal(ApplicationInfo info) {
10535        return (info.flags & ApplicationInfo.FLAG_EXTERNAL_STORAGE) != 0;
10536    }
10537
10538    private static boolean isSystemApp(PackageParser.Package pkg) {
10539        return (pkg.applicationInfo.flags & ApplicationInfo.FLAG_SYSTEM) != 0;
10540    }
10541
10542    private static boolean isPrivilegedApp(PackageParser.Package pkg) {
10543        return (pkg.applicationInfo.privateFlags & ApplicationInfo.PRIVATE_FLAG_PRIVILEGED) != 0;
10544    }
10545
10546    private static boolean isSystemApp(PackageSetting ps) {
10547        return (ps.pkgFlags & ApplicationInfo.FLAG_SYSTEM) != 0;
10548    }
10549
10550    private static boolean isUpdatedSystemApp(PackageSetting ps) {
10551        return (ps.pkgFlags & ApplicationInfo.FLAG_UPDATED_SYSTEM_APP) != 0;
10552    }
10553
10554    private int packageFlagsToInstallFlags(PackageSetting ps) {
10555        int installFlags = 0;
10556        if (isExternal(ps)) {
10557            installFlags |= PackageManager.INSTALL_EXTERNAL;
10558        }
10559        if (ps.isForwardLocked()) {
10560            installFlags |= PackageManager.INSTALL_FORWARD_LOCK;
10561        }
10562        return installFlags;
10563    }
10564
10565    private void deleteTempPackageFiles() {
10566        final FilenameFilter filter = new FilenameFilter() {
10567            public boolean accept(File dir, String name) {
10568                return name.startsWith("vmdl") && name.endsWith(".tmp");
10569            }
10570        };
10571        for (File file : mDrmAppPrivateInstallDir.listFiles(filter)) {
10572            file.delete();
10573        }
10574    }
10575
10576    @Override
10577    public void deletePackageAsUser(String packageName, IPackageDeleteObserver observer, int userId,
10578            int flags) {
10579        deletePackage(packageName, new LegacyPackageDeleteObserver(observer).getBinder(), userId,
10580                flags);
10581    }
10582
10583    @Override
10584    public void deletePackage(final String packageName,
10585            final IPackageDeleteObserver2 observer, final int userId, final int flags) {
10586        mContext.enforceCallingOrSelfPermission(
10587                android.Manifest.permission.DELETE_PACKAGES, null);
10588        final int uid = Binder.getCallingUid();
10589        if (UserHandle.getUserId(uid) != userId) {
10590            mContext.enforceCallingPermission(
10591                    android.Manifest.permission.INTERACT_ACROSS_USERS_FULL,
10592                    "deletePackage for user " + userId);
10593        }
10594        if (isUserRestricted(userId, UserManager.DISALLOW_UNINSTALL_APPS)) {
10595            try {
10596                observer.onPackageDeleted(packageName,
10597                        PackageManager.DELETE_FAILED_USER_RESTRICTED, null);
10598            } catch (RemoteException re) {
10599            }
10600            return;
10601        }
10602
10603        boolean uninstallBlocked = false;
10604        if ((flags & PackageManager.DELETE_ALL_USERS) != 0) {
10605            int[] users = sUserManager.getUserIds();
10606            for (int i = 0; i < users.length; ++i) {
10607                if (getBlockUninstallForUser(packageName, users[i])) {
10608                    uninstallBlocked = true;
10609                    break;
10610                }
10611            }
10612        } else {
10613            uninstallBlocked = getBlockUninstallForUser(packageName, userId);
10614        }
10615        if (uninstallBlocked) {
10616            try {
10617                observer.onPackageDeleted(packageName, PackageManager.DELETE_FAILED_OWNER_BLOCKED,
10618                        null);
10619            } catch (RemoteException re) {
10620            }
10621            return;
10622        }
10623
10624        if (DEBUG_REMOVE) {
10625            Slog.d(TAG, "deletePackageAsUser: pkg=" + packageName + " user=" + userId);
10626        }
10627        // Queue up an async operation since the package deletion may take a little while.
10628        mHandler.post(new Runnable() {
10629            public void run() {
10630                mHandler.removeCallbacks(this);
10631                final int returnCode = deletePackageX(packageName, userId, flags);
10632                if (observer != null) {
10633                    try {
10634                        observer.onPackageDeleted(packageName, returnCode, null);
10635                    } catch (RemoteException e) {
10636                        Log.i(TAG, "Observer no longer exists.");
10637                    } //end catch
10638                } //end if
10639            } //end run
10640        });
10641    }
10642
10643    private boolean isPackageDeviceAdmin(String packageName, int userId) {
10644        IDevicePolicyManager dpm = IDevicePolicyManager.Stub.asInterface(
10645                ServiceManager.getService(Context.DEVICE_POLICY_SERVICE));
10646        try {
10647            if (dpm != null) {
10648                if (dpm.isDeviceOwner(packageName)) {
10649                    return true;
10650                }
10651                int[] users;
10652                if (userId == UserHandle.USER_ALL) {
10653                    users = sUserManager.getUserIds();
10654                } else {
10655                    users = new int[]{userId};
10656                }
10657                for (int i = 0; i < users.length; ++i) {
10658                    if (dpm.packageHasActiveAdmins(packageName, users[i])) {
10659                        return true;
10660                    }
10661                }
10662            }
10663        } catch (RemoteException e) {
10664        }
10665        return false;
10666    }
10667
10668    /**
10669     *  This method is an internal method that could be get invoked either
10670     *  to delete an installed package or to clean up a failed installation.
10671     *  After deleting an installed package, a broadcast is sent to notify any
10672     *  listeners that the package has been installed. For cleaning up a failed
10673     *  installation, the broadcast is not necessary since the package's
10674     *  installation wouldn't have sent the initial broadcast either
10675     *  The key steps in deleting a package are
10676     *  deleting the package information in internal structures like mPackages,
10677     *  deleting the packages base directories through installd
10678     *  updating mSettings to reflect current status
10679     *  persisting settings for later use
10680     *  sending a broadcast if necessary
10681     */
10682    private int deletePackageX(String packageName, int userId, int flags) {
10683        final PackageRemovedInfo info = new PackageRemovedInfo();
10684        final boolean res;
10685
10686        final UserHandle removeForUser = (flags & PackageManager.DELETE_ALL_USERS) != 0
10687                ? UserHandle.ALL : new UserHandle(userId);
10688
10689        if (isPackageDeviceAdmin(packageName, removeForUser.getIdentifier())) {
10690            Slog.w(TAG, "Not removing package " + packageName + ": has active device admin");
10691            return PackageManager.DELETE_FAILED_DEVICE_POLICY_MANAGER;
10692        }
10693
10694        boolean removedForAllUsers = false;
10695        boolean systemUpdate = false;
10696
10697        // for the uninstall-updates case and restricted profiles, remember the per-
10698        // userhandle installed state
10699        int[] allUsers;
10700        boolean[] perUserInstalled;
10701        synchronized (mPackages) {
10702            PackageSetting ps = mSettings.mPackages.get(packageName);
10703            allUsers = sUserManager.getUserIds();
10704            perUserInstalled = new boolean[allUsers.length];
10705            for (int i = 0; i < allUsers.length; i++) {
10706                perUserInstalled[i] = ps != null ? ps.getInstalled(allUsers[i]) : false;
10707            }
10708        }
10709
10710        synchronized (mInstallLock) {
10711            if (DEBUG_REMOVE) Slog.d(TAG, "deletePackageX: pkg=" + packageName + " user=" + userId);
10712            res = deletePackageLI(packageName, removeForUser,
10713                    true, allUsers, perUserInstalled,
10714                    flags | REMOVE_CHATTY, info, true);
10715            systemUpdate = info.isRemovedPackageSystemUpdate;
10716            if (res && !systemUpdate && mPackages.get(packageName) == null) {
10717                removedForAllUsers = true;
10718            }
10719            if (DEBUG_REMOVE) Slog.d(TAG, "delete res: systemUpdate=" + systemUpdate
10720                    + " removedForAllUsers=" + removedForAllUsers);
10721        }
10722
10723        if (res) {
10724            info.sendBroadcast(true, systemUpdate, removedForAllUsers);
10725
10726            // If the removed package was a system update, the old system package
10727            // was re-enabled; we need to broadcast this information
10728            if (systemUpdate) {
10729                Bundle extras = new Bundle(1);
10730                extras.putInt(Intent.EXTRA_UID, info.removedAppId >= 0
10731                        ? info.removedAppId : info.uid);
10732                extras.putBoolean(Intent.EXTRA_REPLACING, true);
10733
10734                sendPackageBroadcast(Intent.ACTION_PACKAGE_ADDED, packageName,
10735                        extras, null, null, null);
10736                sendPackageBroadcast(Intent.ACTION_PACKAGE_REPLACED, packageName,
10737                        extras, null, null, null);
10738                sendPackageBroadcast(Intent.ACTION_MY_PACKAGE_REPLACED, null,
10739                        null, packageName, null, null);
10740            }
10741        }
10742        // Force a gc here.
10743        Runtime.getRuntime().gc();
10744        // Delete the resources here after sending the broadcast to let
10745        // other processes clean up before deleting resources.
10746        if (info.args != null) {
10747            synchronized (mInstallLock) {
10748                info.args.doPostDeleteLI(true);
10749            }
10750        }
10751
10752        return res ? PackageManager.DELETE_SUCCEEDED : PackageManager.DELETE_FAILED_INTERNAL_ERROR;
10753    }
10754
10755    static class PackageRemovedInfo {
10756        String removedPackage;
10757        int uid = -1;
10758        int removedAppId = -1;
10759        int[] removedUsers = null;
10760        boolean isRemovedPackageSystemUpdate = false;
10761        // Clean up resources deleted packages.
10762        InstallArgs args = null;
10763
10764        void sendBroadcast(boolean fullRemove, boolean replacing, boolean removedForAllUsers) {
10765            Bundle extras = new Bundle(1);
10766            extras.putInt(Intent.EXTRA_UID, removedAppId >= 0 ? removedAppId : uid);
10767            extras.putBoolean(Intent.EXTRA_DATA_REMOVED, fullRemove);
10768            if (replacing) {
10769                extras.putBoolean(Intent.EXTRA_REPLACING, true);
10770            }
10771            extras.putBoolean(Intent.EXTRA_REMOVED_FOR_ALL_USERS, removedForAllUsers);
10772            if (removedPackage != null) {
10773                sendPackageBroadcast(Intent.ACTION_PACKAGE_REMOVED, removedPackage,
10774                        extras, null, null, removedUsers);
10775                if (fullRemove && !replacing) {
10776                    sendPackageBroadcast(Intent.ACTION_PACKAGE_FULLY_REMOVED, removedPackage,
10777                            extras, null, null, removedUsers);
10778                }
10779            }
10780            if (removedAppId >= 0) {
10781                sendPackageBroadcast(Intent.ACTION_UID_REMOVED, null, extras, null, null,
10782                        removedUsers);
10783            }
10784        }
10785    }
10786
10787    /*
10788     * This method deletes the package from internal data structures. If the DONT_DELETE_DATA
10789     * flag is not set, the data directory is removed as well.
10790     * make sure this flag is set for partially installed apps. If not its meaningless to
10791     * delete a partially installed application.
10792     */
10793    private void removePackageDataLI(PackageSetting ps,
10794            int[] allUserHandles, boolean[] perUserInstalled,
10795            PackageRemovedInfo outInfo, int flags, boolean writeSettings) {
10796        String packageName = ps.name;
10797        if (DEBUG_REMOVE) Slog.d(TAG, "removePackageDataLI: " + ps);
10798        removePackageLI(ps, (flags&REMOVE_CHATTY) != 0);
10799        // Retrieve object to delete permissions for shared user later on
10800        final PackageSetting deletedPs;
10801        // reader
10802        synchronized (mPackages) {
10803            deletedPs = mSettings.mPackages.get(packageName);
10804            if (outInfo != null) {
10805                outInfo.removedPackage = packageName;
10806                outInfo.removedUsers = deletedPs != null
10807                        ? deletedPs.queryInstalledUsers(sUserManager.getUserIds(), true)
10808                        : null;
10809            }
10810        }
10811        if ((flags&PackageManager.DELETE_KEEP_DATA) == 0) {
10812            removeDataDirsLI(packageName);
10813            schedulePackageCleaning(packageName, UserHandle.USER_ALL, true);
10814        }
10815        // writer
10816        synchronized (mPackages) {
10817            if (deletedPs != null) {
10818                if ((flags&PackageManager.DELETE_KEEP_DATA) == 0) {
10819                    if (outInfo != null) {
10820                        mSettings.mKeySetManagerService.removeAppKeySetDataLPw(packageName);
10821                        outInfo.removedAppId = mSettings.removePackageLPw(packageName);
10822                    }
10823                    if (deletedPs != null) {
10824                        updatePermissionsLPw(deletedPs.name, null, 0);
10825                        if (deletedPs.sharedUser != null) {
10826                            // remove permissions associated with package
10827                            mSettings.updateSharedUserPermsLPw(deletedPs, mGlobalGids);
10828                        }
10829                    }
10830                    clearPackagePreferredActivitiesLPw(deletedPs.name, UserHandle.USER_ALL);
10831                }
10832                // make sure to preserve per-user disabled state if this removal was just
10833                // a downgrade of a system app to the factory package
10834                if (allUserHandles != null && perUserInstalled != null) {
10835                    if (DEBUG_REMOVE) {
10836                        Slog.d(TAG, "Propagating install state across downgrade");
10837                    }
10838                    for (int i = 0; i < allUserHandles.length; i++) {
10839                        if (DEBUG_REMOVE) {
10840                            Slog.d(TAG, "    user " + allUserHandles[i]
10841                                    + " => " + perUserInstalled[i]);
10842                        }
10843                        ps.setInstalled(perUserInstalled[i], allUserHandles[i]);
10844                    }
10845                }
10846            }
10847            // can downgrade to reader
10848            if (writeSettings) {
10849                // Save settings now
10850                mSettings.writeLPr();
10851            }
10852        }
10853        if (outInfo != null) {
10854            // A user ID was deleted here. Go through all users and remove it
10855            // from KeyStore.
10856            removeKeystoreDataIfNeeded(UserHandle.USER_ALL, outInfo.removedAppId);
10857        }
10858    }
10859
10860    static boolean locationIsPrivileged(File path) {
10861        try {
10862            final String privilegedAppDir = new File(Environment.getRootDirectory(), "priv-app")
10863                    .getCanonicalPath();
10864            return path.getCanonicalPath().startsWith(privilegedAppDir);
10865        } catch (IOException e) {
10866            Slog.e(TAG, "Unable to access code path " + path);
10867        }
10868        return false;
10869    }
10870
10871    /*
10872     * Tries to delete system package.
10873     */
10874    private boolean deleteSystemPackageLI(PackageSetting newPs,
10875            int[] allUserHandles, boolean[] perUserInstalled,
10876            int flags, PackageRemovedInfo outInfo, boolean writeSettings) {
10877        final boolean applyUserRestrictions
10878                = (allUserHandles != null) && (perUserInstalled != null);
10879        PackageSetting disabledPs = null;
10880        // Confirm if the system package has been updated
10881        // An updated system app can be deleted. This will also have to restore
10882        // the system pkg from system partition
10883        // reader
10884        synchronized (mPackages) {
10885            disabledPs = mSettings.getDisabledSystemPkgLPr(newPs.name);
10886        }
10887        if (DEBUG_REMOVE) Slog.d(TAG, "deleteSystemPackageLI: newPs=" + newPs
10888                + " disabledPs=" + disabledPs);
10889        if (disabledPs == null) {
10890            Slog.w(TAG, "Attempt to delete unknown system package "+ newPs.name);
10891            return false;
10892        } else if (DEBUG_REMOVE) {
10893            Slog.d(TAG, "Deleting system pkg from data partition");
10894        }
10895        if (DEBUG_REMOVE) {
10896            if (applyUserRestrictions) {
10897                Slog.d(TAG, "Remembering install states:");
10898                for (int i = 0; i < allUserHandles.length; i++) {
10899                    Slog.d(TAG, "   u=" + allUserHandles[i] + " inst=" + perUserInstalled[i]);
10900                }
10901            }
10902        }
10903        // Delete the updated package
10904        outInfo.isRemovedPackageSystemUpdate = true;
10905        if (disabledPs.versionCode < newPs.versionCode) {
10906            // Delete data for downgrades
10907            flags &= ~PackageManager.DELETE_KEEP_DATA;
10908        } else {
10909            // Preserve data by setting flag
10910            flags |= PackageManager.DELETE_KEEP_DATA;
10911        }
10912        boolean ret = deleteInstalledPackageLI(newPs, true, flags,
10913                allUserHandles, perUserInstalled, outInfo, writeSettings);
10914        if (!ret) {
10915            return false;
10916        }
10917        // writer
10918        synchronized (mPackages) {
10919            // Reinstate the old system package
10920            mSettings.enableSystemPackageLPw(newPs.name);
10921            // Remove any native libraries from the upgraded package.
10922            NativeLibraryHelper.removeNativeBinariesLI(newPs.legacyNativeLibraryPathString);
10923        }
10924        // Install the system package
10925        if (DEBUG_REMOVE) Slog.d(TAG, "Re-installing system package: " + disabledPs);
10926        int parseFlags = PackageParser.PARSE_MUST_BE_APK | PackageParser.PARSE_IS_SYSTEM;
10927        if (locationIsPrivileged(disabledPs.codePath)) {
10928            parseFlags |= PackageParser.PARSE_IS_PRIVILEGED;
10929        }
10930
10931        final PackageParser.Package newPkg;
10932        try {
10933            newPkg = scanPackageLI(disabledPs.codePath, parseFlags, SCAN_NO_PATHS, 0, null);
10934        } catch (PackageManagerException e) {
10935            Slog.w(TAG, "Failed to restore system package:" + newPs.name + ": " + e.getMessage());
10936            return false;
10937        }
10938
10939        // writer
10940        synchronized (mPackages) {
10941            PackageSetting ps = mSettings.mPackages.get(newPkg.packageName);
10942            updatePermissionsLPw(newPkg.packageName, newPkg,
10943                    UPDATE_PERMISSIONS_ALL | UPDATE_PERMISSIONS_REPLACE_PKG);
10944            if (applyUserRestrictions) {
10945                if (DEBUG_REMOVE) {
10946                    Slog.d(TAG, "Propagating install state across reinstall");
10947                }
10948                for (int i = 0; i < allUserHandles.length; i++) {
10949                    if (DEBUG_REMOVE) {
10950                        Slog.d(TAG, "    user " + allUserHandles[i]
10951                                + " => " + perUserInstalled[i]);
10952                    }
10953                    ps.setInstalled(perUserInstalled[i], allUserHandles[i]);
10954                }
10955                // Regardless of writeSettings we need to ensure that this restriction
10956                // state propagation is persisted
10957                mSettings.writeAllUsersPackageRestrictionsLPr();
10958            }
10959            // can downgrade to reader here
10960            if (writeSettings) {
10961                mSettings.writeLPr();
10962            }
10963        }
10964        return true;
10965    }
10966
10967    private boolean deleteInstalledPackageLI(PackageSetting ps,
10968            boolean deleteCodeAndResources, int flags,
10969            int[] allUserHandles, boolean[] perUserInstalled,
10970            PackageRemovedInfo outInfo, boolean writeSettings) {
10971        if (outInfo != null) {
10972            outInfo.uid = ps.appId;
10973        }
10974
10975        // Delete package data from internal structures and also remove data if flag is set
10976        removePackageDataLI(ps, allUserHandles, perUserInstalled, outInfo, flags, writeSettings);
10977
10978        // Delete application code and resources
10979        if (deleteCodeAndResources && (outInfo != null)) {
10980            outInfo.args = createInstallArgsForExisting(packageFlagsToInstallFlags(ps),
10981                    ps.codePathString, ps.resourcePathString, ps.legacyNativeLibraryPathString,
10982                    getAppDexInstructionSets(ps));
10983            if (DEBUG_SD_INSTALL) Slog.i(TAG, "args=" + outInfo.args);
10984        }
10985        return true;
10986    }
10987
10988    @Override
10989    public boolean setBlockUninstallForUser(String packageName, boolean blockUninstall,
10990            int userId) {
10991        mContext.enforceCallingOrSelfPermission(
10992                android.Manifest.permission.DELETE_PACKAGES, null);
10993        synchronized (mPackages) {
10994            PackageSetting ps = mSettings.mPackages.get(packageName);
10995            if (ps == null) {
10996                Log.i(TAG, "Package doesn't exist in set block uninstall " + packageName);
10997                return false;
10998            }
10999            if (!ps.getInstalled(userId)) {
11000                // Can't block uninstall for an app that is not installed or enabled.
11001                Log.i(TAG, "Package not installed in set block uninstall " + packageName);
11002                return false;
11003            }
11004            ps.setBlockUninstall(blockUninstall, userId);
11005            mSettings.writePackageRestrictionsLPr(userId);
11006        }
11007        return true;
11008    }
11009
11010    @Override
11011    public boolean getBlockUninstallForUser(String packageName, int userId) {
11012        synchronized (mPackages) {
11013            PackageSetting ps = mSettings.mPackages.get(packageName);
11014            if (ps == null) {
11015                Log.i(TAG, "Package doesn't exist in get block uninstall " + packageName);
11016                return false;
11017            }
11018            return ps.getBlockUninstall(userId);
11019        }
11020    }
11021
11022    /*
11023     * This method handles package deletion in general
11024     */
11025    private boolean deletePackageLI(String packageName, UserHandle user,
11026            boolean deleteCodeAndResources, int[] allUserHandles, boolean[] perUserInstalled,
11027            int flags, PackageRemovedInfo outInfo,
11028            boolean writeSettings) {
11029        if (packageName == null) {
11030            Slog.w(TAG, "Attempt to delete null packageName.");
11031            return false;
11032        }
11033        if (DEBUG_REMOVE) Slog.d(TAG, "deletePackageLI: " + packageName + " user " + user);
11034        PackageSetting ps;
11035        boolean dataOnly = false;
11036        int removeUser = -1;
11037        int appId = -1;
11038        synchronized (mPackages) {
11039            ps = mSettings.mPackages.get(packageName);
11040            if (ps == null) {
11041                Slog.w(TAG, "Package named '" + packageName + "' doesn't exist.");
11042                return false;
11043            }
11044            if ((!isSystemApp(ps) || (flags&PackageManager.DELETE_SYSTEM_APP) != 0) && user != null
11045                    && user.getIdentifier() != UserHandle.USER_ALL) {
11046                // The caller is asking that the package only be deleted for a single
11047                // user.  To do this, we just mark its uninstalled state and delete
11048                // its data.  If this is a system app, we only allow this to happen if
11049                // they have set the special DELETE_SYSTEM_APP which requests different
11050                // semantics than normal for uninstalling system apps.
11051                if (DEBUG_REMOVE) Slog.d(TAG, "Only deleting for single user");
11052                ps.setUserState(user.getIdentifier(),
11053                        COMPONENT_ENABLED_STATE_DEFAULT,
11054                        false, //installed
11055                        true,  //stopped
11056                        true,  //notLaunched
11057                        false, //hidden
11058                        null, null, null,
11059                        false // blockUninstall
11060                        );
11061                if (!isSystemApp(ps)) {
11062                    if (ps.isAnyInstalled(sUserManager.getUserIds())) {
11063                        // Other user still have this package installed, so all
11064                        // we need to do is clear this user's data and save that
11065                        // it is uninstalled.
11066                        if (DEBUG_REMOVE) Slog.d(TAG, "Still installed by other users");
11067                        removeUser = user.getIdentifier();
11068                        appId = ps.appId;
11069                        mSettings.writePackageRestrictionsLPr(removeUser);
11070                    } else {
11071                        // We need to set it back to 'installed' so the uninstall
11072                        // broadcasts will be sent correctly.
11073                        if (DEBUG_REMOVE) Slog.d(TAG, "Not installed by other users, full delete");
11074                        ps.setInstalled(true, user.getIdentifier());
11075                    }
11076                } else {
11077                    // This is a system app, so we assume that the
11078                    // other users still have this package installed, so all
11079                    // we need to do is clear this user's data and save that
11080                    // it is uninstalled.
11081                    if (DEBUG_REMOVE) Slog.d(TAG, "Deleting system app");
11082                    removeUser = user.getIdentifier();
11083                    appId = ps.appId;
11084                    mSettings.writePackageRestrictionsLPr(removeUser);
11085                }
11086            }
11087        }
11088
11089        if (removeUser >= 0) {
11090            // From above, we determined that we are deleting this only
11091            // for a single user.  Continue the work here.
11092            if (DEBUG_REMOVE) Slog.d(TAG, "Updating install state for user: " + removeUser);
11093            if (outInfo != null) {
11094                outInfo.removedPackage = packageName;
11095                outInfo.removedAppId = appId;
11096                outInfo.removedUsers = new int[] {removeUser};
11097            }
11098            mInstaller.clearUserData(packageName, removeUser);
11099            removeKeystoreDataIfNeeded(removeUser, appId);
11100            schedulePackageCleaning(packageName, removeUser, false);
11101            return true;
11102        }
11103
11104        if (dataOnly) {
11105            // Delete application data first
11106            if (DEBUG_REMOVE) Slog.d(TAG, "Removing package data only");
11107            removePackageDataLI(ps, null, null, outInfo, flags, writeSettings);
11108            return true;
11109        }
11110
11111        boolean ret = false;
11112        if (isSystemApp(ps)) {
11113            if (DEBUG_REMOVE) Slog.d(TAG, "Removing system package:" + ps.name);
11114            // When an updated system application is deleted we delete the existing resources as well and
11115            // fall back to existing code in system partition
11116            ret = deleteSystemPackageLI(ps, allUserHandles, perUserInstalled,
11117                    flags, outInfo, writeSettings);
11118        } else {
11119            if (DEBUG_REMOVE) Slog.d(TAG, "Removing non-system package:" + ps.name);
11120            // Kill application pre-emptively especially for apps on sd.
11121            killApplication(packageName, ps.appId, "uninstall pkg");
11122            ret = deleteInstalledPackageLI(ps, deleteCodeAndResources, flags,
11123                    allUserHandles, perUserInstalled,
11124                    outInfo, writeSettings);
11125        }
11126
11127        return ret;
11128    }
11129
11130    private final class ClearStorageConnection implements ServiceConnection {
11131        IMediaContainerService mContainerService;
11132
11133        @Override
11134        public void onServiceConnected(ComponentName name, IBinder service) {
11135            synchronized (this) {
11136                mContainerService = IMediaContainerService.Stub.asInterface(service);
11137                notifyAll();
11138            }
11139        }
11140
11141        @Override
11142        public void onServiceDisconnected(ComponentName name) {
11143        }
11144    }
11145
11146    private void clearExternalStorageDataSync(String packageName, int userId, boolean allData) {
11147        final boolean mounted;
11148        if (Environment.isExternalStorageEmulated()) {
11149            mounted = true;
11150        } else {
11151            final String status = Environment.getExternalStorageState();
11152
11153            mounted = status.equals(Environment.MEDIA_MOUNTED)
11154                    || status.equals(Environment.MEDIA_MOUNTED_READ_ONLY);
11155        }
11156
11157        if (!mounted) {
11158            return;
11159        }
11160
11161        final Intent containerIntent = new Intent().setComponent(DEFAULT_CONTAINER_COMPONENT);
11162        int[] users;
11163        if (userId == UserHandle.USER_ALL) {
11164            users = sUserManager.getUserIds();
11165        } else {
11166            users = new int[] { userId };
11167        }
11168        final ClearStorageConnection conn = new ClearStorageConnection();
11169        if (mContext.bindServiceAsUser(
11170                containerIntent, conn, Context.BIND_AUTO_CREATE, UserHandle.OWNER)) {
11171            try {
11172                for (int curUser : users) {
11173                    long timeout = SystemClock.uptimeMillis() + 5000;
11174                    synchronized (conn) {
11175                        long now = SystemClock.uptimeMillis();
11176                        while (conn.mContainerService == null && now < timeout) {
11177                            try {
11178                                conn.wait(timeout - now);
11179                            } catch (InterruptedException e) {
11180                            }
11181                        }
11182                    }
11183                    if (conn.mContainerService == null) {
11184                        return;
11185                    }
11186
11187                    final UserEnvironment userEnv = new UserEnvironment(curUser);
11188                    clearDirectory(conn.mContainerService,
11189                            userEnv.buildExternalStorageAppCacheDirs(packageName));
11190                    if (allData) {
11191                        clearDirectory(conn.mContainerService,
11192                                userEnv.buildExternalStorageAppDataDirs(packageName));
11193                        clearDirectory(conn.mContainerService,
11194                                userEnv.buildExternalStorageAppMediaDirs(packageName));
11195                    }
11196                }
11197            } finally {
11198                mContext.unbindService(conn);
11199            }
11200        }
11201    }
11202
11203    @Override
11204    public void clearApplicationUserData(final String packageName,
11205            final IPackageDataObserver observer, final int userId) {
11206        mContext.enforceCallingOrSelfPermission(
11207                android.Manifest.permission.CLEAR_APP_USER_DATA, null);
11208        enforceCrossUserPermission(Binder.getCallingUid(), userId, true, false, "clear application data");
11209        // Queue up an async operation since the package deletion may take a little while.
11210        mHandler.post(new Runnable() {
11211            public void run() {
11212                mHandler.removeCallbacks(this);
11213                final boolean succeeded;
11214                synchronized (mInstallLock) {
11215                    succeeded = clearApplicationUserDataLI(packageName, userId);
11216                }
11217                clearExternalStorageDataSync(packageName, userId, true);
11218                if (succeeded) {
11219                    // invoke DeviceStorageMonitor's update method to clear any notifications
11220                    DeviceStorageMonitorInternal
11221                            dsm = LocalServices.getService(DeviceStorageMonitorInternal.class);
11222                    if (dsm != null) {
11223                        dsm.checkMemory();
11224                    }
11225                }
11226                if(observer != null) {
11227                    try {
11228                        observer.onRemoveCompleted(packageName, succeeded);
11229                    } catch (RemoteException e) {
11230                        Log.i(TAG, "Observer no longer exists.");
11231                    }
11232                } //end if observer
11233            } //end run
11234        });
11235    }
11236
11237    private boolean clearApplicationUserDataLI(String packageName, int userId) {
11238        if (packageName == null) {
11239            Slog.w(TAG, "Attempt to delete null packageName.");
11240            return false;
11241        }
11242
11243        // Try finding details about the requested package
11244        PackageParser.Package pkg;
11245        synchronized (mPackages) {
11246            pkg = mPackages.get(packageName);
11247            if (pkg == null) {
11248                final PackageSetting ps = mSettings.mPackages.get(packageName);
11249                if (ps != null) {
11250                    pkg = ps.pkg;
11251                }
11252            }
11253        }
11254
11255        if (pkg == null) {
11256            Slog.w(TAG, "Package named '" + packageName + "' doesn't exist.");
11257        }
11258
11259        // Always delete data directories for package, even if we found no other
11260        // record of app. This helps users recover from UID mismatches without
11261        // resorting to a full data wipe.
11262        int retCode = mInstaller.clearUserData(packageName, userId);
11263        if (retCode < 0) {
11264            Slog.w(TAG, "Couldn't remove cache files for package: " + packageName);
11265            return false;
11266        }
11267
11268        if (pkg == null) {
11269            return false;
11270        }
11271
11272        if (pkg != null && pkg.applicationInfo != null) {
11273            final int appId = pkg.applicationInfo.uid;
11274            removeKeystoreDataIfNeeded(userId, appId);
11275        }
11276
11277        // Create a native library symlink only if we have native libraries
11278        // and if the native libraries are 32 bit libraries. We do not provide
11279        // this symlink for 64 bit libraries.
11280        if (pkg != null && pkg.applicationInfo.primaryCpuAbi != null &&
11281                !VMRuntime.is64BitAbi(pkg.applicationInfo.primaryCpuAbi)) {
11282            final String nativeLibPath = pkg.applicationInfo.nativeLibraryDir;
11283            if (mInstaller.linkNativeLibraryDirectory(pkg.packageName, nativeLibPath, userId) < 0) {
11284                Slog.w(TAG, "Failed linking native library dir");
11285                return false;
11286            }
11287        }
11288
11289        return true;
11290    }
11291
11292    /**
11293     * Remove entries from the keystore daemon. Will only remove it if the
11294     * {@code appId} is valid.
11295     */
11296    private static void removeKeystoreDataIfNeeded(int userId, int appId) {
11297        if (appId < 0) {
11298            return;
11299        }
11300
11301        final KeyStore keyStore = KeyStore.getInstance();
11302        if (keyStore != null) {
11303            if (userId == UserHandle.USER_ALL) {
11304                for (final int individual : sUserManager.getUserIds()) {
11305                    keyStore.clearUid(UserHandle.getUid(individual, appId));
11306                }
11307            } else {
11308                keyStore.clearUid(UserHandle.getUid(userId, appId));
11309            }
11310        } else {
11311            Slog.w(TAG, "Could not contact keystore to clear entries for app id " + appId);
11312        }
11313    }
11314
11315    @Override
11316    public void deleteApplicationCacheFiles(final String packageName,
11317            final IPackageDataObserver observer) {
11318        mContext.enforceCallingOrSelfPermission(
11319                android.Manifest.permission.DELETE_CACHE_FILES, null);
11320        // Queue up an async operation since the package deletion may take a little while.
11321        final int userId = UserHandle.getCallingUserId();
11322        mHandler.post(new Runnable() {
11323            public void run() {
11324                mHandler.removeCallbacks(this);
11325                final boolean succeded;
11326                synchronized (mInstallLock) {
11327                    succeded = deleteApplicationCacheFilesLI(packageName, userId);
11328                }
11329                clearExternalStorageDataSync(packageName, userId, false);
11330                if(observer != null) {
11331                    try {
11332                        observer.onRemoveCompleted(packageName, succeded);
11333                    } catch (RemoteException e) {
11334                        Log.i(TAG, "Observer no longer exists.");
11335                    }
11336                } //end if observer
11337            } //end run
11338        });
11339    }
11340
11341    private boolean deleteApplicationCacheFilesLI(String packageName, int userId) {
11342        if (packageName == null) {
11343            Slog.w(TAG, "Attempt to delete null packageName.");
11344            return false;
11345        }
11346        PackageParser.Package p;
11347        synchronized (mPackages) {
11348            p = mPackages.get(packageName);
11349        }
11350        if (p == null) {
11351            Slog.w(TAG, "Package named '" + packageName +"' doesn't exist.");
11352            return false;
11353        }
11354        final ApplicationInfo applicationInfo = p.applicationInfo;
11355        if (applicationInfo == null) {
11356            Slog.w(TAG, "Package " + packageName + " has no applicationInfo.");
11357            return false;
11358        }
11359        int retCode = mInstaller.deleteCacheFiles(packageName, userId);
11360        if (retCode < 0) {
11361            Slog.w(TAG, "Couldn't remove cache files for package: "
11362                       + packageName + " u" + userId);
11363            return false;
11364        }
11365        return true;
11366    }
11367
11368    @Override
11369    public void getPackageSizeInfo(final String packageName, int userHandle,
11370            final IPackageStatsObserver observer) {
11371        mContext.enforceCallingOrSelfPermission(
11372                android.Manifest.permission.GET_PACKAGE_SIZE, null);
11373        if (packageName == null) {
11374            throw new IllegalArgumentException("Attempt to get size of null packageName");
11375        }
11376
11377        PackageStats stats = new PackageStats(packageName, userHandle);
11378
11379        /*
11380         * Queue up an async operation since the package measurement may take a
11381         * little while.
11382         */
11383        Message msg = mHandler.obtainMessage(INIT_COPY);
11384        msg.obj = new MeasureParams(stats, observer);
11385        mHandler.sendMessage(msg);
11386    }
11387
11388    private boolean getPackageSizeInfoLI(String packageName, int userHandle,
11389            PackageStats pStats) {
11390        if (packageName == null) {
11391            Slog.w(TAG, "Attempt to get size of null packageName.");
11392            return false;
11393        }
11394        PackageParser.Package p;
11395        boolean dataOnly = false;
11396        String libDirRoot = null;
11397        String asecPath = null;
11398        PackageSetting ps = null;
11399        synchronized (mPackages) {
11400            p = mPackages.get(packageName);
11401            ps = mSettings.mPackages.get(packageName);
11402            if(p == null) {
11403                dataOnly = true;
11404                if((ps == null) || (ps.pkg == null)) {
11405                    Slog.w(TAG, "Package named '" + packageName +"' doesn't exist.");
11406                    return false;
11407                }
11408                p = ps.pkg;
11409            }
11410            if (ps != null) {
11411                libDirRoot = ps.legacyNativeLibraryPathString;
11412            }
11413            if (p != null && (isExternal(p) || p.isForwardLocked())) {
11414                String secureContainerId = cidFromCodePath(p.applicationInfo.getBaseCodePath());
11415                if (secureContainerId != null) {
11416                    asecPath = PackageHelper.getSdFilesystem(secureContainerId);
11417                }
11418            }
11419        }
11420        String publicSrcDir = null;
11421        if(!dataOnly) {
11422            final ApplicationInfo applicationInfo = p.applicationInfo;
11423            if (applicationInfo == null) {
11424                Slog.w(TAG, "Package " + packageName + " has no applicationInfo.");
11425                return false;
11426            }
11427            if (p.isForwardLocked()) {
11428                publicSrcDir = applicationInfo.getBaseResourcePath();
11429            }
11430        }
11431        // TODO: extend to measure size of split APKs
11432        // TODO(multiArch): Extend getSizeInfo to look at the full subdirectory tree,
11433        // not just the first level.
11434        // TODO(multiArch): Extend getSizeInfo to look at *all* instruction sets, not
11435        // just the primary.
11436        String[] dexCodeInstructionSets = getDexCodeInstructionSets(getAppDexInstructionSets(ps));
11437        int res = mInstaller.getSizeInfo(packageName, userHandle, p.baseCodePath, libDirRoot,
11438                publicSrcDir, asecPath, dexCodeInstructionSets, pStats);
11439        if (res < 0) {
11440            return false;
11441        }
11442
11443        // Fix-up for forward-locked applications in ASEC containers.
11444        if (!isExternal(p)) {
11445            pStats.codeSize += pStats.externalCodeSize;
11446            pStats.externalCodeSize = 0L;
11447        }
11448
11449        return true;
11450    }
11451
11452
11453    @Override
11454    public void addPackageToPreferred(String packageName) {
11455        Slog.w(TAG, "addPackageToPreferred: this is now a no-op");
11456    }
11457
11458    @Override
11459    public void removePackageFromPreferred(String packageName) {
11460        Slog.w(TAG, "removePackageFromPreferred: this is now a no-op");
11461    }
11462
11463    @Override
11464    public List<PackageInfo> getPreferredPackages(int flags) {
11465        return new ArrayList<PackageInfo>();
11466    }
11467
11468    private int getUidTargetSdkVersionLockedLPr(int uid) {
11469        Object obj = mSettings.getUserIdLPr(uid);
11470        if (obj instanceof SharedUserSetting) {
11471            final SharedUserSetting sus = (SharedUserSetting) obj;
11472            int vers = Build.VERSION_CODES.CUR_DEVELOPMENT;
11473            final Iterator<PackageSetting> it = sus.packages.iterator();
11474            while (it.hasNext()) {
11475                final PackageSetting ps = it.next();
11476                if (ps.pkg != null) {
11477                    int v = ps.pkg.applicationInfo.targetSdkVersion;
11478                    if (v < vers) vers = v;
11479                }
11480            }
11481            return vers;
11482        } else if (obj instanceof PackageSetting) {
11483            final PackageSetting ps = (PackageSetting) obj;
11484            if (ps.pkg != null) {
11485                return ps.pkg.applicationInfo.targetSdkVersion;
11486            }
11487        }
11488        return Build.VERSION_CODES.CUR_DEVELOPMENT;
11489    }
11490
11491    @Override
11492    public void addPreferredActivity(IntentFilter filter, int match,
11493            ComponentName[] set, ComponentName activity, int userId) {
11494        addPreferredActivityInternal(filter, match, set, activity, true, userId,
11495                "Adding preferred");
11496    }
11497
11498    private void addPreferredActivityInternal(IntentFilter filter, int match,
11499            ComponentName[] set, ComponentName activity, boolean always, int userId,
11500            String opname) {
11501        // writer
11502        int callingUid = Binder.getCallingUid();
11503        enforceCrossUserPermission(callingUid, userId, true, false, "add preferred activity");
11504        if (filter.countActions() == 0) {
11505            Slog.w(TAG, "Cannot set a preferred activity with no filter actions");
11506            return;
11507        }
11508        synchronized (mPackages) {
11509            if (mContext.checkCallingOrSelfPermission(
11510                    android.Manifest.permission.SET_PREFERRED_APPLICATIONS)
11511                    != PackageManager.PERMISSION_GRANTED) {
11512                if (getUidTargetSdkVersionLockedLPr(callingUid)
11513                        < Build.VERSION_CODES.FROYO) {
11514                    Slog.w(TAG, "Ignoring addPreferredActivity() from uid "
11515                            + callingUid);
11516                    return;
11517                }
11518                mContext.enforceCallingOrSelfPermission(
11519                        android.Manifest.permission.SET_PREFERRED_APPLICATIONS, null);
11520            }
11521
11522            PreferredIntentResolver pir = mSettings.editPreferredActivitiesLPw(userId);
11523            Slog.i(TAG, opname + " activity " + activity.flattenToShortString() + " for user "
11524                    + userId + ":");
11525            filter.dump(new LogPrinter(Log.INFO, TAG), "  ");
11526            pir.addFilter(new PreferredActivity(filter, match, set, activity, always));
11527            scheduleWritePackageRestrictionsLocked(userId);
11528        }
11529    }
11530
11531    @Override
11532    public void replacePreferredActivity(IntentFilter filter, int match,
11533            ComponentName[] set, ComponentName activity, int userId) {
11534        if (filter.countActions() != 1) {
11535            throw new IllegalArgumentException(
11536                    "replacePreferredActivity expects filter to have only 1 action.");
11537        }
11538        if (filter.countDataAuthorities() != 0
11539                || filter.countDataPaths() != 0
11540                || filter.countDataSchemes() > 1
11541                || filter.countDataTypes() != 0) {
11542            throw new IllegalArgumentException(
11543                    "replacePreferredActivity expects filter to have no data authorities, " +
11544                    "paths, or types; and at most one scheme.");
11545        }
11546
11547        final int callingUid = Binder.getCallingUid();
11548        enforceCrossUserPermission(callingUid, userId, true, false, "replace preferred activity");
11549        synchronized (mPackages) {
11550            if (mContext.checkCallingOrSelfPermission(
11551                    android.Manifest.permission.SET_PREFERRED_APPLICATIONS)
11552                    != PackageManager.PERMISSION_GRANTED) {
11553                if (getUidTargetSdkVersionLockedLPr(callingUid)
11554                        < Build.VERSION_CODES.FROYO) {
11555                    Slog.w(TAG, "Ignoring replacePreferredActivity() from uid "
11556                            + Binder.getCallingUid());
11557                    return;
11558                }
11559                mContext.enforceCallingOrSelfPermission(
11560                        android.Manifest.permission.SET_PREFERRED_APPLICATIONS, null);
11561            }
11562
11563            PreferredIntentResolver pir = mSettings.mPreferredActivities.get(userId);
11564            if (pir != null) {
11565                // Get all of the existing entries that exactly match this filter.
11566                ArrayList<PreferredActivity> existing = pir.findFilters(filter);
11567                if (existing != null && existing.size() == 1) {
11568                    PreferredActivity cur = existing.get(0);
11569                    if (DEBUG_PREFERRED) {
11570                        Slog.i(TAG, "Checking replace of preferred:");
11571                        filter.dump(new LogPrinter(Log.INFO, TAG), "  ");
11572                        if (!cur.mPref.mAlways) {
11573                            Slog.i(TAG, "  -- CUR; not mAlways!");
11574                        } else {
11575                            Slog.i(TAG, "  -- CUR: mMatch=" + cur.mPref.mMatch);
11576                            Slog.i(TAG, "  -- CUR: mSet="
11577                                    + Arrays.toString(cur.mPref.mSetComponents));
11578                            Slog.i(TAG, "  -- CUR: mComponent=" + cur.mPref.mShortComponent);
11579                            Slog.i(TAG, "  -- NEW: mMatch="
11580                                    + (match&IntentFilter.MATCH_CATEGORY_MASK));
11581                            Slog.i(TAG, "  -- CUR: mSet=" + Arrays.toString(set));
11582                            Slog.i(TAG, "  -- CUR: mComponent=" + activity.flattenToShortString());
11583                        }
11584                    }
11585                    if (cur.mPref.mAlways && cur.mPref.mComponent.equals(activity)
11586                            && cur.mPref.mMatch == (match&IntentFilter.MATCH_CATEGORY_MASK)
11587                            && cur.mPref.sameSet(set)) {
11588                        // Setting the preferred activity to what it happens to be already
11589                        if (DEBUG_PREFERRED) {
11590                            Slog.i(TAG, "Replacing with same preferred activity "
11591                                    + cur.mPref.mShortComponent + " for user "
11592                                    + userId + ":");
11593                            filter.dump(new LogPrinter(Log.INFO, TAG), "  ");
11594                        }
11595                        return;
11596                    }
11597                }
11598
11599                if (existing != null) {
11600                    if (DEBUG_PREFERRED) {
11601                        Slog.i(TAG, existing.size() + " existing preferred matches for:");
11602                        filter.dump(new LogPrinter(Log.INFO, TAG), "  ");
11603                    }
11604                    for (int i = 0; i < existing.size(); i++) {
11605                        PreferredActivity pa = existing.get(i);
11606                        if (DEBUG_PREFERRED) {
11607                            Slog.i(TAG, "Removing existing preferred activity "
11608                                    + pa.mPref.mComponent + ":");
11609                            pa.dump(new LogPrinter(Log.INFO, TAG), "  ");
11610                        }
11611                        pir.removeFilter(pa);
11612                    }
11613                }
11614            }
11615            addPreferredActivityInternal(filter, match, set, activity, true, userId,
11616                    "Replacing preferred");
11617        }
11618    }
11619
11620    @Override
11621    public void clearPackagePreferredActivities(String packageName) {
11622        final int uid = Binder.getCallingUid();
11623        // writer
11624        synchronized (mPackages) {
11625            PackageParser.Package pkg = mPackages.get(packageName);
11626            if (pkg == null || pkg.applicationInfo.uid != uid) {
11627                if (mContext.checkCallingOrSelfPermission(
11628                        android.Manifest.permission.SET_PREFERRED_APPLICATIONS)
11629                        != PackageManager.PERMISSION_GRANTED) {
11630                    if (getUidTargetSdkVersionLockedLPr(Binder.getCallingUid())
11631                            < Build.VERSION_CODES.FROYO) {
11632                        Slog.w(TAG, "Ignoring clearPackagePreferredActivities() from uid "
11633                                + Binder.getCallingUid());
11634                        return;
11635                    }
11636                    mContext.enforceCallingOrSelfPermission(
11637                            android.Manifest.permission.SET_PREFERRED_APPLICATIONS, null);
11638                }
11639            }
11640
11641            int user = UserHandle.getCallingUserId();
11642            if (clearPackagePreferredActivitiesLPw(packageName, user)) {
11643                scheduleWritePackageRestrictionsLocked(user);
11644            }
11645        }
11646    }
11647
11648    /** This method takes a specific user id as well as UserHandle.USER_ALL. */
11649    boolean clearPackagePreferredActivitiesLPw(String packageName, int userId) {
11650        ArrayList<PreferredActivity> removed = null;
11651        boolean changed = false;
11652        for (int i=0; i<mSettings.mPreferredActivities.size(); i++) {
11653            final int thisUserId = mSettings.mPreferredActivities.keyAt(i);
11654            PreferredIntentResolver pir = mSettings.mPreferredActivities.valueAt(i);
11655            if (userId != UserHandle.USER_ALL && userId != thisUserId) {
11656                continue;
11657            }
11658            Iterator<PreferredActivity> it = pir.filterIterator();
11659            while (it.hasNext()) {
11660                PreferredActivity pa = it.next();
11661                // Mark entry for removal only if it matches the package name
11662                // and the entry is of type "always".
11663                if (packageName == null ||
11664                        (pa.mPref.mComponent.getPackageName().equals(packageName)
11665                                && pa.mPref.mAlways)) {
11666                    if (removed == null) {
11667                        removed = new ArrayList<PreferredActivity>();
11668                    }
11669                    removed.add(pa);
11670                }
11671            }
11672            if (removed != null) {
11673                for (int j=0; j<removed.size(); j++) {
11674                    PreferredActivity pa = removed.get(j);
11675                    pir.removeFilter(pa);
11676                }
11677                changed = true;
11678            }
11679        }
11680        return changed;
11681    }
11682
11683    @Override
11684    public void resetPreferredActivities(int userId) {
11685        /* TODO: Actually use userId. Why is it being passed in? */
11686        mContext.enforceCallingOrSelfPermission(
11687                android.Manifest.permission.SET_PREFERRED_APPLICATIONS, null);
11688        // writer
11689        synchronized (mPackages) {
11690            int user = UserHandle.getCallingUserId();
11691            clearPackagePreferredActivitiesLPw(null, user);
11692            mSettings.readDefaultPreferredAppsLPw(this, user);
11693            scheduleWritePackageRestrictionsLocked(user);
11694        }
11695    }
11696
11697    @Override
11698    public int getPreferredActivities(List<IntentFilter> outFilters,
11699            List<ComponentName> outActivities, String packageName) {
11700
11701        int num = 0;
11702        final int userId = UserHandle.getCallingUserId();
11703        // reader
11704        synchronized (mPackages) {
11705            PreferredIntentResolver pir = mSettings.mPreferredActivities.get(userId);
11706            if (pir != null) {
11707                final Iterator<PreferredActivity> it = pir.filterIterator();
11708                while (it.hasNext()) {
11709                    final PreferredActivity pa = it.next();
11710                    if (packageName == null
11711                            || (pa.mPref.mComponent.getPackageName().equals(packageName)
11712                                    && pa.mPref.mAlways)) {
11713                        if (outFilters != null) {
11714                            outFilters.add(new IntentFilter(pa));
11715                        }
11716                        if (outActivities != null) {
11717                            outActivities.add(pa.mPref.mComponent);
11718                        }
11719                    }
11720                }
11721            }
11722        }
11723
11724        return num;
11725    }
11726
11727    @Override
11728    public void addPersistentPreferredActivity(IntentFilter filter, ComponentName activity,
11729            int userId) {
11730        int callingUid = Binder.getCallingUid();
11731        if (callingUid != Process.SYSTEM_UID) {
11732            throw new SecurityException(
11733                    "addPersistentPreferredActivity can only be run by the system");
11734        }
11735        if (filter.countActions() == 0) {
11736            Slog.w(TAG, "Cannot set a preferred activity with no filter actions");
11737            return;
11738        }
11739        synchronized (mPackages) {
11740            Slog.i(TAG, "Adding persistent preferred activity " + activity + " for user " + userId +
11741                    " :");
11742            filter.dump(new LogPrinter(Log.INFO, TAG), "  ");
11743            mSettings.editPersistentPreferredActivitiesLPw(userId).addFilter(
11744                    new PersistentPreferredActivity(filter, activity));
11745            scheduleWritePackageRestrictionsLocked(userId);
11746        }
11747    }
11748
11749    @Override
11750    public void clearPackagePersistentPreferredActivities(String packageName, int userId) {
11751        int callingUid = Binder.getCallingUid();
11752        if (callingUid != Process.SYSTEM_UID) {
11753            throw new SecurityException(
11754                    "clearPackagePersistentPreferredActivities can only be run by the system");
11755        }
11756        ArrayList<PersistentPreferredActivity> removed = null;
11757        boolean changed = false;
11758        synchronized (mPackages) {
11759            for (int i=0; i<mSettings.mPersistentPreferredActivities.size(); i++) {
11760                final int thisUserId = mSettings.mPersistentPreferredActivities.keyAt(i);
11761                PersistentPreferredIntentResolver ppir = mSettings.mPersistentPreferredActivities
11762                        .valueAt(i);
11763                if (userId != thisUserId) {
11764                    continue;
11765                }
11766                Iterator<PersistentPreferredActivity> it = ppir.filterIterator();
11767                while (it.hasNext()) {
11768                    PersistentPreferredActivity ppa = it.next();
11769                    // Mark entry for removal only if it matches the package name.
11770                    if (ppa.mComponent.getPackageName().equals(packageName)) {
11771                        if (removed == null) {
11772                            removed = new ArrayList<PersistentPreferredActivity>();
11773                        }
11774                        removed.add(ppa);
11775                    }
11776                }
11777                if (removed != null) {
11778                    for (int j=0; j<removed.size(); j++) {
11779                        PersistentPreferredActivity ppa = removed.get(j);
11780                        ppir.removeFilter(ppa);
11781                    }
11782                    changed = true;
11783                }
11784            }
11785
11786            if (changed) {
11787                scheduleWritePackageRestrictionsLocked(userId);
11788            }
11789        }
11790    }
11791
11792    @Override
11793    public void addCrossProfileIntentFilter(IntentFilter intentFilter, String ownerPackage,
11794            int ownerUserId, int sourceUserId, int targetUserId, int flags) {
11795        mContext.enforceCallingOrSelfPermission(
11796                        android.Manifest.permission.INTERACT_ACROSS_USERS_FULL, null);
11797        int callingUid = Binder.getCallingUid();
11798        enforceOwnerRights(ownerPackage, ownerUserId, callingUid);
11799        enforceShellRestriction(UserManager.DISALLOW_DEBUGGING_FEATURES, callingUid, sourceUserId);
11800        if (intentFilter.countActions() == 0) {
11801            Slog.w(TAG, "Cannot set a crossProfile intent filter with no filter actions");
11802            return;
11803        }
11804        synchronized (mPackages) {
11805            CrossProfileIntentFilter newFilter = new CrossProfileIntentFilter(intentFilter,
11806                    ownerPackage, UserHandle.getUserId(callingUid), targetUserId, flags);
11807            CrossProfileIntentResolver resolver =
11808                    mSettings.editCrossProfileIntentResolverLPw(sourceUserId);
11809            ArrayList<CrossProfileIntentFilter> existing = resolver.findFilters(intentFilter);
11810            // We have all those whose filter is equal. Now checking if the rest is equal as well.
11811            if (existing != null) {
11812                int size = existing.size();
11813                for (int i = 0; i < size; i++) {
11814                    if (newFilter.equalsIgnoreFilter(existing.get(i))) {
11815                        return;
11816                    }
11817                }
11818            }
11819            resolver.addFilter(newFilter);
11820            scheduleWritePackageRestrictionsLocked(sourceUserId);
11821        }
11822    }
11823
11824    @Override
11825    public void clearCrossProfileIntentFilters(int sourceUserId, String ownerPackage,
11826            int ownerUserId) {
11827        mContext.enforceCallingOrSelfPermission(
11828                        android.Manifest.permission.INTERACT_ACROSS_USERS_FULL, null);
11829        int callingUid = Binder.getCallingUid();
11830        enforceOwnerRights(ownerPackage, ownerUserId, callingUid);
11831        enforceShellRestriction(UserManager.DISALLOW_DEBUGGING_FEATURES, callingUid, sourceUserId);
11832        int callingUserId = UserHandle.getUserId(callingUid);
11833        synchronized (mPackages) {
11834            CrossProfileIntentResolver resolver =
11835                    mSettings.editCrossProfileIntentResolverLPw(sourceUserId);
11836            ArraySet<CrossProfileIntentFilter> set =
11837                    new ArraySet<CrossProfileIntentFilter>(resolver.filterSet());
11838            for (CrossProfileIntentFilter filter : set) {
11839                if (filter.getOwnerPackage().equals(ownerPackage)
11840                        && filter.getOwnerUserId() == callingUserId) {
11841                    resolver.removeFilter(filter);
11842                }
11843            }
11844            scheduleWritePackageRestrictionsLocked(sourceUserId);
11845        }
11846    }
11847
11848    // Enforcing that callingUid is owning pkg on userId
11849    private void enforceOwnerRights(String pkg, int userId, int callingUid) {
11850        // The system owns everything.
11851        if (UserHandle.getAppId(callingUid) == Process.SYSTEM_UID) {
11852            return;
11853        }
11854        int callingUserId = UserHandle.getUserId(callingUid);
11855        if (callingUserId != userId) {
11856            throw new SecurityException("calling uid " + callingUid
11857                    + " pretends to own " + pkg + " on user " + userId + " but belongs to user "
11858                    + callingUserId);
11859        }
11860        PackageInfo pi = getPackageInfo(pkg, 0, callingUserId);
11861        if (pi == null) {
11862            throw new IllegalArgumentException("Unknown package " + pkg + " on user "
11863                    + callingUserId);
11864        }
11865        if (!UserHandle.isSameApp(pi.applicationInfo.uid, callingUid)) {
11866            throw new SecurityException("Calling uid " + callingUid
11867                    + " does not own package " + pkg);
11868        }
11869    }
11870
11871    @Override
11872    public ComponentName getHomeActivities(List<ResolveInfo> allHomeCandidates) {
11873        Intent intent = new Intent(Intent.ACTION_MAIN);
11874        intent.addCategory(Intent.CATEGORY_HOME);
11875
11876        final int callingUserId = UserHandle.getCallingUserId();
11877        List<ResolveInfo> list = queryIntentActivities(intent, null,
11878                PackageManager.GET_META_DATA, callingUserId);
11879        ResolveInfo preferred = findPreferredActivity(intent, null, 0, list, 0,
11880                true, false, false, callingUserId);
11881
11882        allHomeCandidates.clear();
11883        if (list != null) {
11884            for (ResolveInfo ri : list) {
11885                allHomeCandidates.add(ri);
11886            }
11887        }
11888        return (preferred == null || preferred.activityInfo == null)
11889                ? null
11890                : new ComponentName(preferred.activityInfo.packageName,
11891                        preferred.activityInfo.name);
11892    }
11893
11894    @Override
11895    public void setApplicationEnabledSetting(String appPackageName,
11896            int newState, int flags, int userId, String callingPackage) {
11897        if (!sUserManager.exists(userId)) return;
11898        if (callingPackage == null) {
11899            callingPackage = Integer.toString(Binder.getCallingUid());
11900        }
11901        setEnabledSetting(appPackageName, null, newState, flags, userId, callingPackage);
11902    }
11903
11904    @Override
11905    public void setComponentEnabledSetting(ComponentName componentName,
11906            int newState, int flags, int userId) {
11907        if (!sUserManager.exists(userId)) return;
11908        setEnabledSetting(componentName.getPackageName(),
11909                componentName.getClassName(), newState, flags, userId, null);
11910    }
11911
11912    private void setEnabledSetting(final String packageName, String className, int newState,
11913            final int flags, int userId, String callingPackage) {
11914        if (!(newState == COMPONENT_ENABLED_STATE_DEFAULT
11915              || newState == COMPONENT_ENABLED_STATE_ENABLED
11916              || newState == COMPONENT_ENABLED_STATE_DISABLED
11917              || newState == COMPONENT_ENABLED_STATE_DISABLED_USER
11918              || newState == COMPONENT_ENABLED_STATE_DISABLED_UNTIL_USED)) {
11919            throw new IllegalArgumentException("Invalid new component state: "
11920                    + newState);
11921        }
11922        PackageSetting pkgSetting;
11923        final int uid = Binder.getCallingUid();
11924        final int permission = mContext.checkCallingOrSelfPermission(
11925                android.Manifest.permission.CHANGE_COMPONENT_ENABLED_STATE);
11926        enforceCrossUserPermission(uid, userId, false, true, "set enabled");
11927        final boolean allowedByPermission = (permission == PackageManager.PERMISSION_GRANTED);
11928        boolean sendNow = false;
11929        boolean isApp = (className == null);
11930        String componentName = isApp ? packageName : className;
11931        int packageUid = -1;
11932        ArrayList<String> components;
11933
11934        // writer
11935        synchronized (mPackages) {
11936            pkgSetting = mSettings.mPackages.get(packageName);
11937            if (pkgSetting == null) {
11938                if (className == null) {
11939                    throw new IllegalArgumentException(
11940                            "Unknown package: " + packageName);
11941                }
11942                throw new IllegalArgumentException(
11943                        "Unknown component: " + packageName
11944                        + "/" + className);
11945            }
11946            // Allow root and verify that userId is not being specified by a different user
11947            if (!allowedByPermission && !UserHandle.isSameApp(uid, pkgSetting.appId)) {
11948                throw new SecurityException(
11949                        "Permission Denial: attempt to change component state from pid="
11950                        + Binder.getCallingPid()
11951                        + ", uid=" + uid + ", package uid=" + pkgSetting.appId);
11952            }
11953            if (className == null) {
11954                // We're dealing with an application/package level state change
11955                if (pkgSetting.getEnabled(userId) == newState) {
11956                    // Nothing to do
11957                    return;
11958                }
11959                if (newState == PackageManager.COMPONENT_ENABLED_STATE_DEFAULT
11960                    || newState == PackageManager.COMPONENT_ENABLED_STATE_ENABLED) {
11961                    // Don't care about who enables an app.
11962                    callingPackage = null;
11963                }
11964                pkgSetting.setEnabled(newState, userId, callingPackage);
11965                // pkgSetting.pkg.mSetEnabled = newState;
11966            } else {
11967                // We're dealing with a component level state change
11968                // First, verify that this is a valid class name.
11969                PackageParser.Package pkg = pkgSetting.pkg;
11970                if (pkg == null || !pkg.hasComponentClassName(className)) {
11971                    if (pkg.applicationInfo.targetSdkVersion >= Build.VERSION_CODES.JELLY_BEAN) {
11972                        throw new IllegalArgumentException("Component class " + className
11973                                + " does not exist in " + packageName);
11974                    } else {
11975                        Slog.w(TAG, "Failed setComponentEnabledSetting: component class "
11976                                + className + " does not exist in " + packageName);
11977                    }
11978                }
11979                switch (newState) {
11980                case COMPONENT_ENABLED_STATE_ENABLED:
11981                    if (!pkgSetting.enableComponentLPw(className, userId)) {
11982                        return;
11983                    }
11984                    break;
11985                case COMPONENT_ENABLED_STATE_DISABLED:
11986                    if (!pkgSetting.disableComponentLPw(className, userId)) {
11987                        return;
11988                    }
11989                    break;
11990                case COMPONENT_ENABLED_STATE_DEFAULT:
11991                    if (!pkgSetting.restoreComponentLPw(className, userId)) {
11992                        return;
11993                    }
11994                    break;
11995                default:
11996                    Slog.e(TAG, "Invalid new component state: " + newState);
11997                    return;
11998                }
11999            }
12000            mSettings.writePackageRestrictionsLPr(userId);
12001            components = mPendingBroadcasts.get(userId, packageName);
12002            final boolean newPackage = components == null;
12003            if (newPackage) {
12004                components = new ArrayList<String>();
12005            }
12006            if (!components.contains(componentName)) {
12007                components.add(componentName);
12008            }
12009            if ((flags&PackageManager.DONT_KILL_APP) == 0) {
12010                sendNow = true;
12011                // Purge entry from pending broadcast list if another one exists already
12012                // since we are sending one right away.
12013                mPendingBroadcasts.remove(userId, packageName);
12014            } else {
12015                if (newPackage) {
12016                    mPendingBroadcasts.put(userId, packageName, components);
12017                }
12018                if (!mHandler.hasMessages(SEND_PENDING_BROADCAST)) {
12019                    // Schedule a message
12020                    mHandler.sendEmptyMessageDelayed(SEND_PENDING_BROADCAST, BROADCAST_DELAY);
12021                }
12022            }
12023        }
12024
12025        long callingId = Binder.clearCallingIdentity();
12026        try {
12027            if (sendNow) {
12028                packageUid = UserHandle.getUid(userId, pkgSetting.appId);
12029                sendPackageChangedBroadcast(packageName,
12030                        (flags&PackageManager.DONT_KILL_APP) != 0, components, packageUid);
12031            }
12032        } finally {
12033            Binder.restoreCallingIdentity(callingId);
12034        }
12035    }
12036
12037    private void sendPackageChangedBroadcast(String packageName,
12038            boolean killFlag, ArrayList<String> componentNames, int packageUid) {
12039        if (DEBUG_INSTALL)
12040            Log.v(TAG, "Sending package changed: package=" + packageName + " components="
12041                    + componentNames);
12042        Bundle extras = new Bundle(4);
12043        extras.putString(Intent.EXTRA_CHANGED_COMPONENT_NAME, componentNames.get(0));
12044        String nameList[] = new String[componentNames.size()];
12045        componentNames.toArray(nameList);
12046        extras.putStringArray(Intent.EXTRA_CHANGED_COMPONENT_NAME_LIST, nameList);
12047        extras.putBoolean(Intent.EXTRA_DONT_KILL_APP, killFlag);
12048        extras.putInt(Intent.EXTRA_UID, packageUid);
12049        sendPackageBroadcast(Intent.ACTION_PACKAGE_CHANGED,  packageName, extras, null, null,
12050                new int[] {UserHandle.getUserId(packageUid)});
12051    }
12052
12053    @Override
12054    public void setPackageStoppedState(String packageName, boolean stopped, int userId) {
12055        if (!sUserManager.exists(userId)) return;
12056        final int uid = Binder.getCallingUid();
12057        final int permission = mContext.checkCallingOrSelfPermission(
12058                android.Manifest.permission.CHANGE_COMPONENT_ENABLED_STATE);
12059        final boolean allowedByPermission = (permission == PackageManager.PERMISSION_GRANTED);
12060        enforceCrossUserPermission(uid, userId, true, true, "stop package");
12061        // writer
12062        synchronized (mPackages) {
12063            if (mSettings.setPackageStoppedStateLPw(packageName, stopped, allowedByPermission,
12064                    uid, userId)) {
12065                scheduleWritePackageRestrictionsLocked(userId);
12066            }
12067        }
12068    }
12069
12070    @Override
12071    public String getInstallerPackageName(String packageName) {
12072        // reader
12073        synchronized (mPackages) {
12074            return mSettings.getInstallerPackageNameLPr(packageName);
12075        }
12076    }
12077
12078    @Override
12079    public int getApplicationEnabledSetting(String packageName, int userId) {
12080        if (!sUserManager.exists(userId)) return COMPONENT_ENABLED_STATE_DISABLED;
12081        int uid = Binder.getCallingUid();
12082        enforceCrossUserPermission(uid, userId, false, false, "get enabled");
12083        // reader
12084        synchronized (mPackages) {
12085            return mSettings.getApplicationEnabledSettingLPr(packageName, userId);
12086        }
12087    }
12088
12089    @Override
12090    public int getComponentEnabledSetting(ComponentName componentName, int userId) {
12091        if (!sUserManager.exists(userId)) return COMPONENT_ENABLED_STATE_DISABLED;
12092        int uid = Binder.getCallingUid();
12093        enforceCrossUserPermission(uid, userId, false, false, "get component enabled");
12094        // reader
12095        synchronized (mPackages) {
12096            return mSettings.getComponentEnabledSettingLPr(componentName, userId);
12097        }
12098    }
12099
12100    @Override
12101    public void enterSafeMode() {
12102        enforceSystemOrRoot("Only the system can request entering safe mode");
12103
12104        if (!mSystemReady) {
12105            mSafeMode = true;
12106        }
12107    }
12108
12109    @Override
12110    public void systemReady() {
12111        mSystemReady = true;
12112
12113        // Read the compatibilty setting when the system is ready.
12114        boolean compatibilityModeEnabled = android.provider.Settings.Global.getInt(
12115                mContext.getContentResolver(),
12116                android.provider.Settings.Global.COMPATIBILITY_MODE, 1) == 1;
12117        PackageParser.setCompatibilityModeEnabled(compatibilityModeEnabled);
12118        if (DEBUG_SETTINGS) {
12119            Log.d(TAG, "compatibility mode:" + compatibilityModeEnabled);
12120        }
12121
12122        synchronized (mPackages) {
12123            // Verify that all of the preferred activity components actually
12124            // exist.  It is possible for applications to be updated and at
12125            // that point remove a previously declared activity component that
12126            // had been set as a preferred activity.  We try to clean this up
12127            // the next time we encounter that preferred activity, but it is
12128            // possible for the user flow to never be able to return to that
12129            // situation so here we do a sanity check to make sure we haven't
12130            // left any junk around.
12131            ArrayList<PreferredActivity> removed = new ArrayList<PreferredActivity>();
12132            for (int i=0; i<mSettings.mPreferredActivities.size(); i++) {
12133                PreferredIntentResolver pir = mSettings.mPreferredActivities.valueAt(i);
12134                removed.clear();
12135                for (PreferredActivity pa : pir.filterSet()) {
12136                    if (mActivities.mActivities.get(pa.mPref.mComponent) == null) {
12137                        removed.add(pa);
12138                    }
12139                }
12140                if (removed.size() > 0) {
12141                    for (int r=0; r<removed.size(); r++) {
12142                        PreferredActivity pa = removed.get(r);
12143                        Slog.w(TAG, "Removing dangling preferred activity: "
12144                                + pa.mPref.mComponent);
12145                        pir.removeFilter(pa);
12146                    }
12147                    mSettings.writePackageRestrictionsLPr(
12148                            mSettings.mPreferredActivities.keyAt(i));
12149                }
12150            }
12151        }
12152        sUserManager.systemReady();
12153
12154        // Kick off any messages waiting for system ready
12155        if (mPostSystemReadyMessages != null) {
12156            for (Message msg : mPostSystemReadyMessages) {
12157                msg.sendToTarget();
12158            }
12159            mPostSystemReadyMessages = null;
12160        }
12161    }
12162
12163    @Override
12164    public boolean isSafeMode() {
12165        return mSafeMode;
12166    }
12167
12168    @Override
12169    public boolean hasSystemUidErrors() {
12170        return mHasSystemUidErrors;
12171    }
12172
12173    static String arrayToString(int[] array) {
12174        StringBuffer buf = new StringBuffer(128);
12175        buf.append('[');
12176        if (array != null) {
12177            for (int i=0; i<array.length; i++) {
12178                if (i > 0) buf.append(", ");
12179                buf.append(array[i]);
12180            }
12181        }
12182        buf.append(']');
12183        return buf.toString();
12184    }
12185
12186    static class DumpState {
12187        public static final int DUMP_LIBS = 1 << 0;
12188        public static final int DUMP_FEATURES = 1 << 1;
12189        public static final int DUMP_RESOLVERS = 1 << 2;
12190        public static final int DUMP_PERMISSIONS = 1 << 3;
12191        public static final int DUMP_PACKAGES = 1 << 4;
12192        public static final int DUMP_SHARED_USERS = 1 << 5;
12193        public static final int DUMP_MESSAGES = 1 << 6;
12194        public static final int DUMP_PROVIDERS = 1 << 7;
12195        public static final int DUMP_VERIFIERS = 1 << 8;
12196        public static final int DUMP_PREFERRED = 1 << 9;
12197        public static final int DUMP_PREFERRED_XML = 1 << 10;
12198        public static final int DUMP_KEYSETS = 1 << 11;
12199        public static final int DUMP_VERSION = 1 << 12;
12200        public static final int DUMP_INSTALLS = 1 << 13;
12201
12202        public static final int OPTION_SHOW_FILTERS = 1 << 0;
12203
12204        private int mTypes;
12205
12206        private int mOptions;
12207
12208        private boolean mTitlePrinted;
12209
12210        private SharedUserSetting mSharedUser;
12211
12212        public boolean isDumping(int type) {
12213            if (mTypes == 0 && type != DUMP_PREFERRED_XML) {
12214                return true;
12215            }
12216
12217            return (mTypes & type) != 0;
12218        }
12219
12220        public void setDump(int type) {
12221            mTypes |= type;
12222        }
12223
12224        public boolean isOptionEnabled(int option) {
12225            return (mOptions & option) != 0;
12226        }
12227
12228        public void setOptionEnabled(int option) {
12229            mOptions |= option;
12230        }
12231
12232        public boolean onTitlePrinted() {
12233            final boolean printed = mTitlePrinted;
12234            mTitlePrinted = true;
12235            return printed;
12236        }
12237
12238        public boolean getTitlePrinted() {
12239            return mTitlePrinted;
12240        }
12241
12242        public void setTitlePrinted(boolean enabled) {
12243            mTitlePrinted = enabled;
12244        }
12245
12246        public SharedUserSetting getSharedUser() {
12247            return mSharedUser;
12248        }
12249
12250        public void setSharedUser(SharedUserSetting user) {
12251            mSharedUser = user;
12252        }
12253    }
12254
12255    @Override
12256    protected void dump(FileDescriptor fd, PrintWriter pw, String[] args) {
12257        if (mContext.checkCallingOrSelfPermission(android.Manifest.permission.DUMP)
12258                != PackageManager.PERMISSION_GRANTED) {
12259            pw.println("Permission Denial: can't dump ActivityManager from from pid="
12260                    + Binder.getCallingPid()
12261                    + ", uid=" + Binder.getCallingUid()
12262                    + " without permission "
12263                    + android.Manifest.permission.DUMP);
12264            return;
12265        }
12266
12267        DumpState dumpState = new DumpState();
12268        boolean fullPreferred = false;
12269        boolean checkin = false;
12270
12271        String packageName = null;
12272
12273        int opti = 0;
12274        while (opti < args.length) {
12275            String opt = args[opti];
12276            if (opt == null || opt.length() <= 0 || opt.charAt(0) != '-') {
12277                break;
12278            }
12279            opti++;
12280
12281            if ("-a".equals(opt)) {
12282                // Right now we only know how to print all.
12283            } else if ("-h".equals(opt)) {
12284                pw.println("Package manager dump options:");
12285                pw.println("  [-h] [-f] [--checkin] [cmd] ...");
12286                pw.println("    --checkin: dump for a checkin");
12287                pw.println("    -f: print details of intent filters");
12288                pw.println("    -h: print this help");
12289                pw.println("  cmd may be one of:");
12290                pw.println("    l[ibraries]: list known shared libraries");
12291                pw.println("    f[ibraries]: list device features");
12292                pw.println("    k[eysets]: print known keysets");
12293                pw.println("    r[esolvers]: dump intent resolvers");
12294                pw.println("    perm[issions]: dump permissions");
12295                pw.println("    pref[erred]: print preferred package settings");
12296                pw.println("    preferred-xml [--full]: print preferred package settings as xml");
12297                pw.println("    prov[iders]: dump content providers");
12298                pw.println("    p[ackages]: dump installed packages");
12299                pw.println("    s[hared-users]: dump shared user IDs");
12300                pw.println("    m[essages]: print collected runtime messages");
12301                pw.println("    v[erifiers]: print package verifier info");
12302                pw.println("    version: print database version info");
12303                pw.println("    write: write current settings now");
12304                pw.println("    <package.name>: info about given package");
12305                pw.println("    installs: details about install sessions");
12306                return;
12307            } else if ("--checkin".equals(opt)) {
12308                checkin = true;
12309            } else if ("-f".equals(opt)) {
12310                dumpState.setOptionEnabled(DumpState.OPTION_SHOW_FILTERS);
12311            } else {
12312                pw.println("Unknown argument: " + opt + "; use -h for help");
12313            }
12314        }
12315
12316        // Is the caller requesting to dump a particular piece of data?
12317        if (opti < args.length) {
12318            String cmd = args[opti];
12319            opti++;
12320            // Is this a package name?
12321            if ("android".equals(cmd) || cmd.contains(".")) {
12322                packageName = cmd;
12323                // When dumping a single package, we always dump all of its
12324                // filter information since the amount of data will be reasonable.
12325                dumpState.setOptionEnabled(DumpState.OPTION_SHOW_FILTERS);
12326            } else if ("l".equals(cmd) || "libraries".equals(cmd)) {
12327                dumpState.setDump(DumpState.DUMP_LIBS);
12328            } else if ("f".equals(cmd) || "features".equals(cmd)) {
12329                dumpState.setDump(DumpState.DUMP_FEATURES);
12330            } else if ("r".equals(cmd) || "resolvers".equals(cmd)) {
12331                dumpState.setDump(DumpState.DUMP_RESOLVERS);
12332            } else if ("perm".equals(cmd) || "permissions".equals(cmd)) {
12333                dumpState.setDump(DumpState.DUMP_PERMISSIONS);
12334            } else if ("pref".equals(cmd) || "preferred".equals(cmd)) {
12335                dumpState.setDump(DumpState.DUMP_PREFERRED);
12336            } else if ("preferred-xml".equals(cmd)) {
12337                dumpState.setDump(DumpState.DUMP_PREFERRED_XML);
12338                if (opti < args.length && "--full".equals(args[opti])) {
12339                    fullPreferred = true;
12340                    opti++;
12341                }
12342            } else if ("p".equals(cmd) || "packages".equals(cmd)) {
12343                dumpState.setDump(DumpState.DUMP_PACKAGES);
12344            } else if ("s".equals(cmd) || "shared-users".equals(cmd)) {
12345                dumpState.setDump(DumpState.DUMP_SHARED_USERS);
12346            } else if ("prov".equals(cmd) || "providers".equals(cmd)) {
12347                dumpState.setDump(DumpState.DUMP_PROVIDERS);
12348            } else if ("m".equals(cmd) || "messages".equals(cmd)) {
12349                dumpState.setDump(DumpState.DUMP_MESSAGES);
12350            } else if ("v".equals(cmd) || "verifiers".equals(cmd)) {
12351                dumpState.setDump(DumpState.DUMP_VERIFIERS);
12352            } else if ("version".equals(cmd)) {
12353                dumpState.setDump(DumpState.DUMP_VERSION);
12354            } else if ("k".equals(cmd) || "keysets".equals(cmd)) {
12355                dumpState.setDump(DumpState.DUMP_KEYSETS);
12356            } else if ("installs".equals(cmd)) {
12357                dumpState.setDump(DumpState.DUMP_INSTALLS);
12358            } else if ("write".equals(cmd)) {
12359                synchronized (mPackages) {
12360                    mSettings.writeLPr();
12361                    pw.println("Settings written.");
12362                    return;
12363                }
12364            }
12365        }
12366
12367        if (checkin) {
12368            pw.println("vers,1");
12369        }
12370
12371        // reader
12372        synchronized (mPackages) {
12373            if (dumpState.isDumping(DumpState.DUMP_VERSION) && packageName == null) {
12374                if (!checkin) {
12375                    if (dumpState.onTitlePrinted())
12376                        pw.println();
12377                    pw.println("Database versions:");
12378                    pw.print("  SDK Version:");
12379                    pw.print(" internal=");
12380                    pw.print(mSettings.mInternalSdkPlatform);
12381                    pw.print(" external=");
12382                    pw.println(mSettings.mExternalSdkPlatform);
12383                    pw.print("  DB Version:");
12384                    pw.print(" internal=");
12385                    pw.print(mSettings.mInternalDatabaseVersion);
12386                    pw.print(" external=");
12387                    pw.println(mSettings.mExternalDatabaseVersion);
12388                }
12389            }
12390
12391            if (dumpState.isDumping(DumpState.DUMP_VERIFIERS) && packageName == null) {
12392                if (!checkin) {
12393                    if (dumpState.onTitlePrinted())
12394                        pw.println();
12395                    pw.println("Verifiers:");
12396                    pw.print("  Required: ");
12397                    pw.print(mRequiredVerifierPackage);
12398                    pw.print(" (uid=");
12399                    pw.print(getPackageUid(mRequiredVerifierPackage, 0));
12400                    pw.println(")");
12401                } else if (mRequiredVerifierPackage != null) {
12402                    pw.print("vrfy,"); pw.print(mRequiredVerifierPackage);
12403                    pw.print(","); pw.println(getPackageUid(mRequiredVerifierPackage, 0));
12404                }
12405            }
12406
12407            if (dumpState.isDumping(DumpState.DUMP_LIBS) && packageName == null) {
12408                boolean printedHeader = false;
12409                final Iterator<String> it = mSharedLibraries.keySet().iterator();
12410                while (it.hasNext()) {
12411                    String name = it.next();
12412                    SharedLibraryEntry ent = mSharedLibraries.get(name);
12413                    if (!checkin) {
12414                        if (!printedHeader) {
12415                            if (dumpState.onTitlePrinted())
12416                                pw.println();
12417                            pw.println("Libraries:");
12418                            printedHeader = true;
12419                        }
12420                        pw.print("  ");
12421                    } else {
12422                        pw.print("lib,");
12423                    }
12424                    pw.print(name);
12425                    if (!checkin) {
12426                        pw.print(" -> ");
12427                    }
12428                    if (ent.path != null) {
12429                        if (!checkin) {
12430                            pw.print("(jar) ");
12431                            pw.print(ent.path);
12432                        } else {
12433                            pw.print(",jar,");
12434                            pw.print(ent.path);
12435                        }
12436                    } else {
12437                        if (!checkin) {
12438                            pw.print("(apk) ");
12439                            pw.print(ent.apk);
12440                        } else {
12441                            pw.print(",apk,");
12442                            pw.print(ent.apk);
12443                        }
12444                    }
12445                    pw.println();
12446                }
12447            }
12448
12449            if (dumpState.isDumping(DumpState.DUMP_FEATURES) && packageName == null) {
12450                if (dumpState.onTitlePrinted())
12451                    pw.println();
12452                if (!checkin) {
12453                    pw.println("Features:");
12454                }
12455                Iterator<String> it = mAvailableFeatures.keySet().iterator();
12456                while (it.hasNext()) {
12457                    String name = it.next();
12458                    if (!checkin) {
12459                        pw.print("  ");
12460                    } else {
12461                        pw.print("feat,");
12462                    }
12463                    pw.println(name);
12464                }
12465            }
12466
12467            if (!checkin && dumpState.isDumping(DumpState.DUMP_RESOLVERS)) {
12468                if (mActivities.dump(pw, dumpState.getTitlePrinted() ? "\nActivity Resolver Table:"
12469                        : "Activity Resolver Table:", "  ", packageName,
12470                        dumpState.isOptionEnabled(DumpState.OPTION_SHOW_FILTERS), true)) {
12471                    dumpState.setTitlePrinted(true);
12472                }
12473                if (mReceivers.dump(pw, dumpState.getTitlePrinted() ? "\nReceiver Resolver Table:"
12474                        : "Receiver Resolver Table:", "  ", packageName,
12475                        dumpState.isOptionEnabled(DumpState.OPTION_SHOW_FILTERS), true)) {
12476                    dumpState.setTitlePrinted(true);
12477                }
12478                if (mServices.dump(pw, dumpState.getTitlePrinted() ? "\nService Resolver Table:"
12479                        : "Service Resolver Table:", "  ", packageName,
12480                        dumpState.isOptionEnabled(DumpState.OPTION_SHOW_FILTERS), true)) {
12481                    dumpState.setTitlePrinted(true);
12482                }
12483                if (mProviders.dump(pw, dumpState.getTitlePrinted() ? "\nProvider Resolver Table:"
12484                        : "Provider Resolver Table:", "  ", packageName,
12485                        dumpState.isOptionEnabled(DumpState.OPTION_SHOW_FILTERS), true)) {
12486                    dumpState.setTitlePrinted(true);
12487                }
12488            }
12489
12490            if (!checkin && dumpState.isDumping(DumpState.DUMP_PREFERRED)) {
12491                for (int i=0; i<mSettings.mPreferredActivities.size(); i++) {
12492                    PreferredIntentResolver pir = mSettings.mPreferredActivities.valueAt(i);
12493                    int user = mSettings.mPreferredActivities.keyAt(i);
12494                    if (pir.dump(pw,
12495                            dumpState.getTitlePrinted()
12496                                ? "\nPreferred Activities User " + user + ":"
12497                                : "Preferred Activities User " + user + ":", "  ",
12498                            packageName, true, false)) {
12499                        dumpState.setTitlePrinted(true);
12500                    }
12501                }
12502            }
12503
12504            if (!checkin && dumpState.isDumping(DumpState.DUMP_PREFERRED_XML)) {
12505                pw.flush();
12506                FileOutputStream fout = new FileOutputStream(fd);
12507                BufferedOutputStream str = new BufferedOutputStream(fout);
12508                XmlSerializer serializer = new FastXmlSerializer();
12509                try {
12510                    serializer.setOutput(str, StandardCharsets.UTF_8.name());
12511                    serializer.startDocument(null, true);
12512                    serializer.setFeature(
12513                            "http://xmlpull.org/v1/doc/features.html#indent-output", true);
12514                    mSettings.writePreferredActivitiesLPr(serializer, 0, fullPreferred);
12515                    serializer.endDocument();
12516                    serializer.flush();
12517                } catch (IllegalArgumentException e) {
12518                    pw.println("Failed writing: " + e);
12519                } catch (IllegalStateException e) {
12520                    pw.println("Failed writing: " + e);
12521                } catch (IOException e) {
12522                    pw.println("Failed writing: " + e);
12523                }
12524            }
12525
12526            if (!checkin && dumpState.isDumping(DumpState.DUMP_PERMISSIONS)) {
12527                mSettings.dumpPermissionsLPr(pw, packageName, dumpState);
12528                if (packageName == null) {
12529                    for (int iperm=0; iperm<mAppOpPermissionPackages.size(); iperm++) {
12530                        if (iperm == 0) {
12531                            if (dumpState.onTitlePrinted())
12532                                pw.println();
12533                            pw.println("AppOp Permissions:");
12534                        }
12535                        pw.print("  AppOp Permission ");
12536                        pw.print(mAppOpPermissionPackages.keyAt(iperm));
12537                        pw.println(":");
12538                        ArraySet<String> pkgs = mAppOpPermissionPackages.valueAt(iperm);
12539                        for (int ipkg=0; ipkg<pkgs.size(); ipkg++) {
12540                            pw.print("    "); pw.println(pkgs.valueAt(ipkg));
12541                        }
12542                    }
12543                }
12544            }
12545
12546            if (!checkin && dumpState.isDumping(DumpState.DUMP_PROVIDERS)) {
12547                boolean printedSomething = false;
12548                for (PackageParser.Provider p : mProviders.mProviders.values()) {
12549                    if (packageName != null && !packageName.equals(p.info.packageName)) {
12550                        continue;
12551                    }
12552                    if (!printedSomething) {
12553                        if (dumpState.onTitlePrinted())
12554                            pw.println();
12555                        pw.println("Registered ContentProviders:");
12556                        printedSomething = true;
12557                    }
12558                    pw.print("  "); p.printComponentShortName(pw); pw.println(":");
12559                    pw.print("    "); pw.println(p.toString());
12560                }
12561                printedSomething = false;
12562                for (Map.Entry<String, PackageParser.Provider> entry :
12563                        mProvidersByAuthority.entrySet()) {
12564                    PackageParser.Provider p = entry.getValue();
12565                    if (packageName != null && !packageName.equals(p.info.packageName)) {
12566                        continue;
12567                    }
12568                    if (!printedSomething) {
12569                        if (dumpState.onTitlePrinted())
12570                            pw.println();
12571                        pw.println("ContentProvider Authorities:");
12572                        printedSomething = true;
12573                    }
12574                    pw.print("  ["); pw.print(entry.getKey()); pw.println("]:");
12575                    pw.print("    "); pw.println(p.toString());
12576                    if (p.info != null && p.info.applicationInfo != null) {
12577                        final String appInfo = p.info.applicationInfo.toString();
12578                        pw.print("      applicationInfo="); pw.println(appInfo);
12579                    }
12580                }
12581            }
12582
12583            if (!checkin && dumpState.isDumping(DumpState.DUMP_KEYSETS)) {
12584                mSettings.mKeySetManagerService.dumpLPr(pw, packageName, dumpState);
12585            }
12586
12587            if (dumpState.isDumping(DumpState.DUMP_PACKAGES)) {
12588                mSettings.dumpPackagesLPr(pw, packageName, dumpState, checkin);
12589            }
12590
12591            if (dumpState.isDumping(DumpState.DUMP_SHARED_USERS)) {
12592                mSettings.dumpSharedUsersLPr(pw, packageName, dumpState, checkin);
12593            }
12594
12595            if (!checkin && dumpState.isDumping(DumpState.DUMP_INSTALLS) && packageName == null) {
12596                // XXX should handle packageName != null by dumping only install data that
12597                // the given package is involved with.
12598                if (dumpState.onTitlePrinted()) pw.println();
12599                mInstallerService.dump(new IndentingPrintWriter(pw, "  ", 120));
12600            }
12601
12602            if (!checkin && dumpState.isDumping(DumpState.DUMP_MESSAGES) && packageName == null) {
12603                if (dumpState.onTitlePrinted()) pw.println();
12604                mSettings.dumpReadMessagesLPr(pw, dumpState);
12605
12606                pw.println();
12607                pw.println("Package warning messages:");
12608                BufferedReader in = null;
12609                String line = null;
12610                try {
12611                    in = new BufferedReader(new FileReader(getSettingsProblemFile()));
12612                    while ((line = in.readLine()) != null) {
12613                        if (line.contains("ignored: updated version")) continue;
12614                        pw.println(line);
12615                    }
12616                } catch (IOException ignored) {
12617                } finally {
12618                    IoUtils.closeQuietly(in);
12619                }
12620            }
12621
12622            if (checkin && dumpState.isDumping(DumpState.DUMP_MESSAGES)) {
12623                BufferedReader in = null;
12624                String line = null;
12625                try {
12626                    in = new BufferedReader(new FileReader(getSettingsProblemFile()));
12627                    while ((line = in.readLine()) != null) {
12628                        if (line.contains("ignored: updated version")) continue;
12629                        pw.print("msg,");
12630                        pw.println(line);
12631                    }
12632                } catch (IOException ignored) {
12633                } finally {
12634                    IoUtils.closeQuietly(in);
12635                }
12636            }
12637        }
12638    }
12639
12640    // ------- apps on sdcard specific code -------
12641    static final boolean DEBUG_SD_INSTALL = false;
12642
12643    private static final String SD_ENCRYPTION_KEYSTORE_NAME = "AppsOnSD";
12644
12645    private static final String SD_ENCRYPTION_ALGORITHM = "AES";
12646
12647    private boolean mMediaMounted = false;
12648
12649    static String getEncryptKey() {
12650        try {
12651            String sdEncKey = SystemKeyStore.getInstance().retrieveKeyHexString(
12652                    SD_ENCRYPTION_KEYSTORE_NAME);
12653            if (sdEncKey == null) {
12654                sdEncKey = SystemKeyStore.getInstance().generateNewKeyHexString(128,
12655                        SD_ENCRYPTION_ALGORITHM, SD_ENCRYPTION_KEYSTORE_NAME);
12656                if (sdEncKey == null) {
12657                    Slog.e(TAG, "Failed to create encryption keys");
12658                    return null;
12659                }
12660            }
12661            return sdEncKey;
12662        } catch (NoSuchAlgorithmException nsae) {
12663            Slog.e(TAG, "Failed to create encryption keys with exception: " + nsae);
12664            return null;
12665        } catch (IOException ioe) {
12666            Slog.e(TAG, "Failed to retrieve encryption keys with exception: " + ioe);
12667            return null;
12668        }
12669    }
12670
12671    /*
12672     * Update media status on PackageManager.
12673     */
12674    @Override
12675    public void updateExternalMediaStatus(final boolean mediaStatus, final boolean reportStatus) {
12676        int callingUid = Binder.getCallingUid();
12677        if (callingUid != 0 && callingUid != Process.SYSTEM_UID) {
12678            throw new SecurityException("Media status can only be updated by the system");
12679        }
12680        // reader; this apparently protects mMediaMounted, but should probably
12681        // be a different lock in that case.
12682        synchronized (mPackages) {
12683            Log.i(TAG, "Updating external media status from "
12684                    + (mMediaMounted ? "mounted" : "unmounted") + " to "
12685                    + (mediaStatus ? "mounted" : "unmounted"));
12686            if (DEBUG_SD_INSTALL)
12687                Log.i(TAG, "updateExternalMediaStatus:: mediaStatus=" + mediaStatus
12688                        + ", mMediaMounted=" + mMediaMounted);
12689            if (mediaStatus == mMediaMounted) {
12690                final Message msg = mHandler.obtainMessage(UPDATED_MEDIA_STATUS, reportStatus ? 1
12691                        : 0, -1);
12692                mHandler.sendMessage(msg);
12693                return;
12694            }
12695            mMediaMounted = mediaStatus;
12696        }
12697        // Queue up an async operation since the package installation may take a
12698        // little while.
12699        mHandler.post(new Runnable() {
12700            public void run() {
12701                updateExternalMediaStatusInner(mediaStatus, reportStatus, true);
12702            }
12703        });
12704    }
12705
12706    /**
12707     * Called by MountService when the initial ASECs to scan are available.
12708     * Should block until all the ASEC containers are finished being scanned.
12709     */
12710    public void scanAvailableAsecs() {
12711        updateExternalMediaStatusInner(true, false, false);
12712        if (mShouldRestoreconData) {
12713            SELinuxMMAC.setRestoreconDone();
12714            mShouldRestoreconData = false;
12715        }
12716    }
12717
12718    /*
12719     * Collect information of applications on external media, map them against
12720     * existing containers and update information based on current mount status.
12721     * Please note that we always have to report status if reportStatus has been
12722     * set to true especially when unloading packages.
12723     */
12724    private void updateExternalMediaStatusInner(boolean isMounted, boolean reportStatus,
12725            boolean externalStorage) {
12726        ArrayMap<AsecInstallArgs, String> processCids = new ArrayMap<>();
12727        int[] uidArr = EmptyArray.INT;
12728
12729        final String[] list = PackageHelper.getSecureContainerList();
12730        if (ArrayUtils.isEmpty(list)) {
12731            Log.i(TAG, "No secure containers found");
12732        } else {
12733            // Process list of secure containers and categorize them
12734            // as active or stale based on their package internal state.
12735
12736            // reader
12737            synchronized (mPackages) {
12738                for (String cid : list) {
12739                    // Leave stages untouched for now; installer service owns them
12740                    if (PackageInstallerService.isStageName(cid)) continue;
12741
12742                    if (DEBUG_SD_INSTALL)
12743                        Log.i(TAG, "Processing container " + cid);
12744                    String pkgName = getAsecPackageName(cid);
12745                    if (pkgName == null) {
12746                        Slog.i(TAG, "Found stale container " + cid + " with no package name");
12747                        continue;
12748                    }
12749                    if (DEBUG_SD_INSTALL)
12750                        Log.i(TAG, "Looking for pkg : " + pkgName);
12751
12752                    final PackageSetting ps = mSettings.mPackages.get(pkgName);
12753                    if (ps == null) {
12754                        Slog.i(TAG, "Found stale container " + cid + " with no matching settings");
12755                        continue;
12756                    }
12757
12758                    /*
12759                     * Skip packages that are not external if we're unmounting
12760                     * external storage.
12761                     */
12762                    if (externalStorage && !isMounted && !isExternal(ps)) {
12763                        continue;
12764                    }
12765
12766                    final AsecInstallArgs args = new AsecInstallArgs(cid,
12767                            getAppDexInstructionSets(ps), ps.isForwardLocked());
12768                    // The package status is changed only if the code path
12769                    // matches between settings and the container id.
12770                    if (ps.codePathString != null
12771                            && ps.codePathString.startsWith(args.getCodePath())) {
12772                        if (DEBUG_SD_INSTALL) {
12773                            Log.i(TAG, "Container : " + cid + " corresponds to pkg : " + pkgName
12774                                    + " at code path: " + ps.codePathString);
12775                        }
12776
12777                        // We do have a valid package installed on sdcard
12778                        processCids.put(args, ps.codePathString);
12779                        final int uid = ps.appId;
12780                        if (uid != -1) {
12781                            uidArr = ArrayUtils.appendInt(uidArr, uid);
12782                        }
12783                    } else {
12784                        Slog.i(TAG, "Found stale container " + cid + ": expected codePath="
12785                                + ps.codePathString);
12786                    }
12787                }
12788            }
12789
12790            Arrays.sort(uidArr);
12791        }
12792
12793        // Process packages with valid entries.
12794        if (isMounted) {
12795            if (DEBUG_SD_INSTALL)
12796                Log.i(TAG, "Loading packages");
12797            loadMediaPackages(processCids, uidArr);
12798            startCleaningPackages();
12799            mInstallerService.onSecureContainersAvailable();
12800        } else {
12801            if (DEBUG_SD_INSTALL)
12802                Log.i(TAG, "Unloading packages");
12803            unloadMediaPackages(processCids, uidArr, reportStatus);
12804        }
12805    }
12806
12807    private void sendResourcesChangedBroadcast(boolean mediaStatus, boolean replacing,
12808            ArrayList<String> pkgList, int uidArr[], IIntentReceiver finishedReceiver) {
12809        int size = pkgList.size();
12810        if (size > 0) {
12811            // Send broadcasts here
12812            Bundle extras = new Bundle();
12813            extras.putStringArray(Intent.EXTRA_CHANGED_PACKAGE_LIST, pkgList
12814                    .toArray(new String[size]));
12815            if (uidArr != null) {
12816                extras.putIntArray(Intent.EXTRA_CHANGED_UID_LIST, uidArr);
12817            }
12818            if (replacing) {
12819                extras.putBoolean(Intent.EXTRA_REPLACING, replacing);
12820            }
12821            String action = mediaStatus ? Intent.ACTION_EXTERNAL_APPLICATIONS_AVAILABLE
12822                    : Intent.ACTION_EXTERNAL_APPLICATIONS_UNAVAILABLE;
12823            sendPackageBroadcast(action, null, extras, null, finishedReceiver, null);
12824        }
12825    }
12826
12827   /*
12828     * Look at potentially valid container ids from processCids If package
12829     * information doesn't match the one on record or package scanning fails,
12830     * the cid is added to list of removeCids. We currently don't delete stale
12831     * containers.
12832     */
12833    private void loadMediaPackages(ArrayMap<AsecInstallArgs, String> processCids, int[] uidArr) {
12834        ArrayList<String> pkgList = new ArrayList<String>();
12835        Set<AsecInstallArgs> keys = processCids.keySet();
12836
12837        for (AsecInstallArgs args : keys) {
12838            String codePath = processCids.get(args);
12839            if (DEBUG_SD_INSTALL)
12840                Log.i(TAG, "Loading container : " + args.cid);
12841            int retCode = PackageManager.INSTALL_FAILED_CONTAINER_ERROR;
12842            try {
12843                // Make sure there are no container errors first.
12844                if (args.doPreInstall(PackageManager.INSTALL_SUCCEEDED) != PackageManager.INSTALL_SUCCEEDED) {
12845                    Slog.e(TAG, "Failed to mount cid : " + args.cid
12846                            + " when installing from sdcard");
12847                    continue;
12848                }
12849                // Check code path here.
12850                if (codePath == null || !codePath.startsWith(args.getCodePath())) {
12851                    Slog.e(TAG, "Container " + args.cid + " cachepath " + args.getCodePath()
12852                            + " does not match one in settings " + codePath);
12853                    continue;
12854                }
12855                // Parse package
12856                int parseFlags = mDefParseFlags;
12857                if (args.isExternal()) {
12858                    parseFlags |= PackageParser.PARSE_ON_SDCARD;
12859                }
12860                if (args.isFwdLocked()) {
12861                    parseFlags |= PackageParser.PARSE_FORWARD_LOCK;
12862                }
12863
12864                synchronized (mInstallLock) {
12865                    PackageParser.Package pkg = null;
12866                    try {
12867                        pkg = scanPackageLI(new File(codePath), parseFlags, 0, 0, null);
12868                    } catch (PackageManagerException e) {
12869                        Slog.w(TAG, "Failed to scan " + codePath + ": " + e.getMessage());
12870                    }
12871                    // Scan the package
12872                    if (pkg != null) {
12873                        /*
12874                         * TODO why is the lock being held? doPostInstall is
12875                         * called in other places without the lock. This needs
12876                         * to be straightened out.
12877                         */
12878                        // writer
12879                        synchronized (mPackages) {
12880                            retCode = PackageManager.INSTALL_SUCCEEDED;
12881                            pkgList.add(pkg.packageName);
12882                            // Post process args
12883                            args.doPostInstall(PackageManager.INSTALL_SUCCEEDED,
12884                                    pkg.applicationInfo.uid);
12885                        }
12886                    } else {
12887                        Slog.i(TAG, "Failed to install pkg from  " + codePath + " from sdcard");
12888                    }
12889                }
12890
12891            } finally {
12892                if (retCode != PackageManager.INSTALL_SUCCEEDED) {
12893                    Log.w(TAG, "Container " + args.cid + " is stale, retCode=" + retCode);
12894                }
12895            }
12896        }
12897        // writer
12898        synchronized (mPackages) {
12899            // If the platform SDK has changed since the last time we booted,
12900            // we need to re-grant app permission to catch any new ones that
12901            // appear. This is really a hack, and means that apps can in some
12902            // cases get permissions that the user didn't initially explicitly
12903            // allow... it would be nice to have some better way to handle
12904            // this situation.
12905            final boolean regrantPermissions = mSettings.mExternalSdkPlatform != mSdkVersion;
12906            if (regrantPermissions)
12907                Slog.i(TAG, "Platform changed from " + mSettings.mExternalSdkPlatform + " to "
12908                        + mSdkVersion + "; regranting permissions for external storage");
12909            mSettings.mExternalSdkPlatform = mSdkVersion;
12910
12911            // Make sure group IDs have been assigned, and any permission
12912            // changes in other apps are accounted for
12913            updatePermissionsLPw(null, null, UPDATE_PERMISSIONS_ALL
12914                    | (regrantPermissions
12915                            ? (UPDATE_PERMISSIONS_REPLACE_PKG|UPDATE_PERMISSIONS_REPLACE_ALL)
12916                            : 0));
12917
12918            mSettings.updateExternalDatabaseVersion();
12919
12920            // can downgrade to reader
12921            // Persist settings
12922            mSettings.writeLPr();
12923        }
12924        // Send a broadcast to let everyone know we are done processing
12925        if (pkgList.size() > 0) {
12926            sendResourcesChangedBroadcast(true, false, pkgList, uidArr, null);
12927        }
12928    }
12929
12930   /*
12931     * Utility method to unload a list of specified containers
12932     */
12933    private void unloadAllContainers(Set<AsecInstallArgs> cidArgs) {
12934        // Just unmount all valid containers.
12935        for (AsecInstallArgs arg : cidArgs) {
12936            synchronized (mInstallLock) {
12937                arg.doPostDeleteLI(false);
12938           }
12939       }
12940   }
12941
12942    /*
12943     * Unload packages mounted on external media. This involves deleting package
12944     * data from internal structures, sending broadcasts about diabled packages,
12945     * gc'ing to free up references, unmounting all secure containers
12946     * corresponding to packages on external media, and posting a
12947     * UPDATED_MEDIA_STATUS message if status has been requested. Please note
12948     * that we always have to post this message if status has been requested no
12949     * matter what.
12950     */
12951    private void unloadMediaPackages(ArrayMap<AsecInstallArgs, String> processCids, int uidArr[],
12952            final boolean reportStatus) {
12953        if (DEBUG_SD_INSTALL)
12954            Log.i(TAG, "unloading media packages");
12955        ArrayList<String> pkgList = new ArrayList<String>();
12956        ArrayList<AsecInstallArgs> failedList = new ArrayList<AsecInstallArgs>();
12957        final Set<AsecInstallArgs> keys = processCids.keySet();
12958        for (AsecInstallArgs args : keys) {
12959            String pkgName = args.getPackageName();
12960            if (DEBUG_SD_INSTALL)
12961                Log.i(TAG, "Trying to unload pkg : " + pkgName);
12962            // Delete package internally
12963            PackageRemovedInfo outInfo = new PackageRemovedInfo();
12964            synchronized (mInstallLock) {
12965                boolean res = deletePackageLI(pkgName, null, false, null, null,
12966                        PackageManager.DELETE_KEEP_DATA, outInfo, false);
12967                if (res) {
12968                    pkgList.add(pkgName);
12969                } else {
12970                    Slog.e(TAG, "Failed to delete pkg from sdcard : " + pkgName);
12971                    failedList.add(args);
12972                }
12973            }
12974        }
12975
12976        // reader
12977        synchronized (mPackages) {
12978            // We didn't update the settings after removing each package;
12979            // write them now for all packages.
12980            mSettings.writeLPr();
12981        }
12982
12983        // We have to absolutely send UPDATED_MEDIA_STATUS only
12984        // after confirming that all the receivers processed the ordered
12985        // broadcast when packages get disabled, force a gc to clean things up.
12986        // and unload all the containers.
12987        if (pkgList.size() > 0) {
12988            sendResourcesChangedBroadcast(false, false, pkgList, uidArr,
12989                    new IIntentReceiver.Stub() {
12990                public void performReceive(Intent intent, int resultCode, String data,
12991                        Bundle extras, boolean ordered, boolean sticky,
12992                        int sendingUser) throws RemoteException {
12993                    Message msg = mHandler.obtainMessage(UPDATED_MEDIA_STATUS,
12994                            reportStatus ? 1 : 0, 1, keys);
12995                    mHandler.sendMessage(msg);
12996                }
12997            });
12998        } else {
12999            Message msg = mHandler.obtainMessage(UPDATED_MEDIA_STATUS, reportStatus ? 1 : 0, -1,
13000                    keys);
13001            mHandler.sendMessage(msg);
13002        }
13003    }
13004
13005    /** Binder call */
13006    @Override
13007    public void movePackage(final String packageName, final IPackageMoveObserver observer,
13008            final int flags) {
13009        mContext.enforceCallingOrSelfPermission(android.Manifest.permission.MOVE_PACKAGE, null);
13010        UserHandle user = new UserHandle(UserHandle.getCallingUserId());
13011        int returnCode = PackageManager.MOVE_SUCCEEDED;
13012        int currInstallFlags = 0;
13013        int newInstallFlags = 0;
13014
13015        File codeFile = null;
13016        String installerPackageName = null;
13017        String packageAbiOverride = null;
13018
13019        // reader
13020        synchronized (mPackages) {
13021            final PackageParser.Package pkg = mPackages.get(packageName);
13022            final PackageSetting ps = mSettings.mPackages.get(packageName);
13023            if (pkg == null || ps == null) {
13024                returnCode = PackageManager.MOVE_FAILED_DOESNT_EXIST;
13025            } else {
13026                // Disable moving fwd locked apps and system packages
13027                if (pkg.applicationInfo != null && isSystemApp(pkg)) {
13028                    Slog.w(TAG, "Cannot move system application");
13029                    returnCode = PackageManager.MOVE_FAILED_SYSTEM_PACKAGE;
13030                } else if (pkg.mOperationPending) {
13031                    Slog.w(TAG, "Attempt to move package which has pending operations");
13032                    returnCode = PackageManager.MOVE_FAILED_OPERATION_PENDING;
13033                } else {
13034                    // Find install location first
13035                    if ((flags & PackageManager.MOVE_EXTERNAL_MEDIA) != 0
13036                            && (flags & PackageManager.MOVE_INTERNAL) != 0) {
13037                        Slog.w(TAG, "Ambigous flags specified for move location.");
13038                        returnCode = PackageManager.MOVE_FAILED_INVALID_LOCATION;
13039                    } else {
13040                        newInstallFlags = (flags & PackageManager.MOVE_EXTERNAL_MEDIA) != 0
13041                                ? PackageManager.INSTALL_EXTERNAL : PackageManager.INSTALL_INTERNAL;
13042                        currInstallFlags = isExternal(pkg)
13043                                ? PackageManager.INSTALL_EXTERNAL : PackageManager.INSTALL_INTERNAL;
13044
13045                        if (newInstallFlags == currInstallFlags) {
13046                            Slog.w(TAG, "No move required. Trying to move to same location");
13047                            returnCode = PackageManager.MOVE_FAILED_INVALID_LOCATION;
13048                        } else {
13049                            if (pkg.isForwardLocked()) {
13050                                currInstallFlags |= PackageManager.INSTALL_FORWARD_LOCK;
13051                                newInstallFlags |= PackageManager.INSTALL_FORWARD_LOCK;
13052                            }
13053                        }
13054                    }
13055                    if (returnCode == PackageManager.MOVE_SUCCEEDED) {
13056                        pkg.mOperationPending = true;
13057                    }
13058                }
13059
13060                codeFile = new File(pkg.codePath);
13061                installerPackageName = ps.installerPackageName;
13062                packageAbiOverride = ps.cpuAbiOverrideString;
13063            }
13064        }
13065
13066        if (returnCode != PackageManager.MOVE_SUCCEEDED) {
13067            try {
13068                observer.packageMoved(packageName, returnCode);
13069            } catch (RemoteException ignored) {
13070            }
13071            return;
13072        }
13073
13074        final IPackageInstallObserver2 installObserver = new IPackageInstallObserver2.Stub() {
13075            @Override
13076            public void onUserActionRequired(Intent intent) throws RemoteException {
13077                throw new IllegalStateException();
13078            }
13079
13080            @Override
13081            public void onPackageInstalled(String basePackageName, int returnCode, String msg,
13082                    Bundle extras) throws RemoteException {
13083                Slog.d(TAG, "Install result for move: "
13084                        + PackageManager.installStatusToString(returnCode, msg));
13085
13086                // We usually have a new package now after the install, but if
13087                // we failed we need to clear the pending flag on the original
13088                // package object.
13089                synchronized (mPackages) {
13090                    final PackageParser.Package pkg = mPackages.get(packageName);
13091                    if (pkg != null) {
13092                        pkg.mOperationPending = false;
13093                    }
13094                }
13095
13096                final int status = PackageManager.installStatusToPublicStatus(returnCode);
13097                switch (status) {
13098                    case PackageInstaller.STATUS_SUCCESS:
13099                        observer.packageMoved(packageName, PackageManager.MOVE_SUCCEEDED);
13100                        break;
13101                    case PackageInstaller.STATUS_FAILURE_STORAGE:
13102                        observer.packageMoved(packageName, PackageManager.MOVE_FAILED_INSUFFICIENT_STORAGE);
13103                        break;
13104                    default:
13105                        observer.packageMoved(packageName, PackageManager.MOVE_FAILED_INTERNAL_ERROR);
13106                        break;
13107                }
13108            }
13109        };
13110
13111        // Treat a move like reinstalling an existing app, which ensures that we
13112        // process everythign uniformly, like unpacking native libraries.
13113        newInstallFlags |= PackageManager.INSTALL_REPLACE_EXISTING;
13114
13115        final Message msg = mHandler.obtainMessage(INIT_COPY);
13116        final OriginInfo origin = OriginInfo.fromExistingFile(codeFile);
13117        msg.obj = new InstallParams(origin, installObserver, newInstallFlags,
13118                installerPackageName, null, user, packageAbiOverride);
13119        mHandler.sendMessage(msg);
13120    }
13121
13122    @Override
13123    public boolean setInstallLocation(int loc) {
13124        mContext.enforceCallingOrSelfPermission(android.Manifest.permission.WRITE_SECURE_SETTINGS,
13125                null);
13126        if (getInstallLocation() == loc) {
13127            return true;
13128        }
13129        if (loc == PackageHelper.APP_INSTALL_AUTO || loc == PackageHelper.APP_INSTALL_INTERNAL
13130                || loc == PackageHelper.APP_INSTALL_EXTERNAL) {
13131            android.provider.Settings.Global.putInt(mContext.getContentResolver(),
13132                    android.provider.Settings.Global.DEFAULT_INSTALL_LOCATION, loc);
13133            return true;
13134        }
13135        return false;
13136   }
13137
13138    @Override
13139    public int getInstallLocation() {
13140        return android.provider.Settings.Global.getInt(mContext.getContentResolver(),
13141                android.provider.Settings.Global.DEFAULT_INSTALL_LOCATION,
13142                PackageHelper.APP_INSTALL_AUTO);
13143    }
13144
13145    /** Called by UserManagerService */
13146    void cleanUpUserLILPw(UserManagerService userManager, int userHandle) {
13147        mDirtyUsers.remove(userHandle);
13148        mSettings.removeUserLPw(userHandle);
13149        mPendingBroadcasts.remove(userHandle);
13150        if (mInstaller != null) {
13151            // Technically, we shouldn't be doing this with the package lock
13152            // held.  However, this is very rare, and there is already so much
13153            // other disk I/O going on, that we'll let it slide for now.
13154            mInstaller.removeUserDataDirs(userHandle);
13155        }
13156        mUserNeedsBadging.delete(userHandle);
13157        removeUnusedPackagesLILPw(userManager, userHandle);
13158    }
13159
13160    /**
13161     * We're removing userHandle and would like to remove any downloaded packages
13162     * that are no longer in use by any other user.
13163     * @param userHandle the user being removed
13164     */
13165    private void removeUnusedPackagesLILPw(UserManagerService userManager, final int userHandle) {
13166        final boolean DEBUG_CLEAN_APKS = false;
13167        int [] users = userManager.getUserIdsLPr();
13168        Iterator<PackageSetting> psit = mSettings.mPackages.values().iterator();
13169        while (psit.hasNext()) {
13170            PackageSetting ps = psit.next();
13171            if (ps.pkg == null) {
13172                continue;
13173            }
13174            final String packageName = ps.pkg.packageName;
13175            // Skip over if system app
13176            if ((ps.pkgFlags & ApplicationInfo.FLAG_SYSTEM) != 0) {
13177                continue;
13178            }
13179            if (DEBUG_CLEAN_APKS) {
13180                Slog.i(TAG, "Checking package " + packageName);
13181            }
13182            boolean keep = false;
13183            for (int i = 0; i < users.length; i++) {
13184                if (users[i] != userHandle && ps.getInstalled(users[i])) {
13185                    keep = true;
13186                    if (DEBUG_CLEAN_APKS) {
13187                        Slog.i(TAG, "  Keeping package " + packageName + " for user "
13188                                + users[i]);
13189                    }
13190                    break;
13191                }
13192            }
13193            if (!keep) {
13194                if (DEBUG_CLEAN_APKS) {
13195                    Slog.i(TAG, "  Removing package " + packageName);
13196                }
13197                mHandler.post(new Runnable() {
13198                    public void run() {
13199                        deletePackageX(packageName, userHandle, 0);
13200                    } //end run
13201                });
13202            }
13203        }
13204    }
13205
13206    /** Called by UserManagerService */
13207    void createNewUserLILPw(int userHandle, File path) {
13208        if (mInstaller != null) {
13209            mInstaller.createUserConfig(userHandle);
13210            mSettings.createNewUserLILPw(this, mInstaller, userHandle, path);
13211        }
13212    }
13213
13214    @Override
13215    public VerifierDeviceIdentity getVerifierDeviceIdentity() throws RemoteException {
13216        mContext.enforceCallingOrSelfPermission(
13217                android.Manifest.permission.PACKAGE_VERIFICATION_AGENT,
13218                "Only package verification agents can read the verifier device identity");
13219
13220        synchronized (mPackages) {
13221            return mSettings.getVerifierDeviceIdentityLPw();
13222        }
13223    }
13224
13225    @Override
13226    public void setPermissionEnforced(String permission, boolean enforced) {
13227        mContext.enforceCallingOrSelfPermission(GRANT_REVOKE_PERMISSIONS, null);
13228        if (READ_EXTERNAL_STORAGE.equals(permission)) {
13229            synchronized (mPackages) {
13230                if (mSettings.mReadExternalStorageEnforced == null
13231                        || mSettings.mReadExternalStorageEnforced != enforced) {
13232                    mSettings.mReadExternalStorageEnforced = enforced;
13233                    mSettings.writeLPr();
13234                }
13235            }
13236            // kill any non-foreground processes so we restart them and
13237            // grant/revoke the GID.
13238            final IActivityManager am = ActivityManagerNative.getDefault();
13239            if (am != null) {
13240                final long token = Binder.clearCallingIdentity();
13241                try {
13242                    am.killProcessesBelowForeground("setPermissionEnforcement");
13243                } catch (RemoteException e) {
13244                } finally {
13245                    Binder.restoreCallingIdentity(token);
13246                }
13247            }
13248        } else {
13249            throw new IllegalArgumentException("No selective enforcement for " + permission);
13250        }
13251    }
13252
13253    @Override
13254    @Deprecated
13255    public boolean isPermissionEnforced(String permission) {
13256        return true;
13257    }
13258
13259    @Override
13260    public boolean isStorageLow() {
13261        final long token = Binder.clearCallingIdentity();
13262        try {
13263            final DeviceStorageMonitorInternal
13264                    dsm = LocalServices.getService(DeviceStorageMonitorInternal.class);
13265            if (dsm != null) {
13266                return dsm.isMemoryLow();
13267            } else {
13268                return false;
13269            }
13270        } finally {
13271            Binder.restoreCallingIdentity(token);
13272        }
13273    }
13274
13275    @Override
13276    public IPackageInstaller getPackageInstaller() {
13277        return mInstallerService;
13278    }
13279
13280    private boolean userNeedsBadging(int userId) {
13281        int index = mUserNeedsBadging.indexOfKey(userId);
13282        if (index < 0) {
13283            final UserInfo userInfo;
13284            final long token = Binder.clearCallingIdentity();
13285            try {
13286                userInfo = sUserManager.getUserInfo(userId);
13287            } finally {
13288                Binder.restoreCallingIdentity(token);
13289            }
13290            final boolean b;
13291            if (userInfo != null && userInfo.isManagedProfile()) {
13292                b = true;
13293            } else {
13294                b = false;
13295            }
13296            mUserNeedsBadging.put(userId, b);
13297            return b;
13298        }
13299        return mUserNeedsBadging.valueAt(index);
13300    }
13301
13302    @Override
13303    public KeySet getKeySetByAlias(String packageName, String alias) {
13304        if (packageName == null || alias == null) {
13305            return null;
13306        }
13307        synchronized(mPackages) {
13308            final PackageParser.Package pkg = mPackages.get(packageName);
13309            if (pkg == null) {
13310                Slog.w(TAG, "KeySet requested for unknown package:" + packageName);
13311                throw new IllegalArgumentException("Unknown package: " + packageName);
13312            }
13313            KeySetManagerService ksms = mSettings.mKeySetManagerService;
13314            return new KeySet(ksms.getKeySetByAliasAndPackageNameLPr(packageName, alias));
13315        }
13316    }
13317
13318    @Override
13319    public KeySet getSigningKeySet(String packageName) {
13320        if (packageName == null) {
13321            return null;
13322        }
13323        synchronized(mPackages) {
13324            final PackageParser.Package pkg = mPackages.get(packageName);
13325            if (pkg == null) {
13326                Slog.w(TAG, "KeySet requested for unknown package:" + packageName);
13327                throw new IllegalArgumentException("Unknown package: " + packageName);
13328            }
13329            if (pkg.applicationInfo.uid != Binder.getCallingUid()
13330                    && Process.SYSTEM_UID != Binder.getCallingUid()) {
13331                throw new SecurityException("May not access signing KeySet of other apps.");
13332            }
13333            KeySetManagerService ksms = mSettings.mKeySetManagerService;
13334            return new KeySet(ksms.getSigningKeySetByPackageNameLPr(packageName));
13335        }
13336    }
13337
13338    @Override
13339    public boolean isPackageSignedByKeySet(String packageName, KeySet ks) {
13340        if (packageName == null || ks == null) {
13341            return false;
13342        }
13343        synchronized(mPackages) {
13344            final PackageParser.Package pkg = mPackages.get(packageName);
13345            if (pkg == null) {
13346                Slog.w(TAG, "KeySet requested for unknown package:" + packageName);
13347                throw new IllegalArgumentException("Unknown package: " + packageName);
13348            }
13349            IBinder ksh = ks.getToken();
13350            if (ksh instanceof KeySetHandle) {
13351                KeySetManagerService ksms = mSettings.mKeySetManagerService;
13352                return ksms.packageIsSignedByLPr(packageName, (KeySetHandle) ksh);
13353            }
13354            return false;
13355        }
13356    }
13357
13358    @Override
13359    public boolean isPackageSignedByKeySetExactly(String packageName, KeySet ks) {
13360        if (packageName == null || ks == null) {
13361            return false;
13362        }
13363        synchronized(mPackages) {
13364            final PackageParser.Package pkg = mPackages.get(packageName);
13365            if (pkg == null) {
13366                Slog.w(TAG, "KeySet requested for unknown package:" + packageName);
13367                throw new IllegalArgumentException("Unknown package: " + packageName);
13368            }
13369            IBinder ksh = ks.getToken();
13370            if (ksh instanceof KeySetHandle) {
13371                KeySetManagerService ksms = mSettings.mKeySetManagerService;
13372                return ksms.packageIsSignedByExactlyLPr(packageName, (KeySetHandle) ksh);
13373            }
13374            return false;
13375        }
13376    }
13377
13378    public void getUsageStatsIfNoPackageUsageInfo() {
13379        if (!mPackageUsage.isHistoricalPackageUsageAvailable()) {
13380            UsageStatsManager usm = (UsageStatsManager) mContext.getSystemService(Context.USAGE_STATS_SERVICE);
13381            if (usm == null) {
13382                throw new IllegalStateException("UsageStatsManager must be initialized");
13383            }
13384            long now = System.currentTimeMillis();
13385            Map<String, UsageStats> stats = usm.queryAndAggregateUsageStats(now - mDexOptLRUThresholdInMills, now);
13386            for (Map.Entry<String, UsageStats> entry : stats.entrySet()) {
13387                String packageName = entry.getKey();
13388                PackageParser.Package pkg = mPackages.get(packageName);
13389                if (pkg == null) {
13390                    continue;
13391                }
13392                UsageStats usage = entry.getValue();
13393                pkg.mLastPackageUsageTimeInMills = usage.getLastTimeUsed();
13394                mPackageUsage.mIsHistoricalPackageUsageAvailable = true;
13395            }
13396        }
13397    }
13398
13399    /**
13400     * Check and throw if the given before/after packages would be considered a
13401     * downgrade.
13402     */
13403    private static void checkDowngrade(PackageParser.Package before, PackageInfoLite after)
13404            throws PackageManagerException {
13405        if (after.versionCode < before.mVersionCode) {
13406            throw new PackageManagerException(INSTALL_FAILED_VERSION_DOWNGRADE,
13407                    "Update version code " + after.versionCode + " is older than current "
13408                    + before.mVersionCode);
13409        } else if (after.versionCode == before.mVersionCode) {
13410            if (after.baseRevisionCode < before.baseRevisionCode) {
13411                throw new PackageManagerException(INSTALL_FAILED_VERSION_DOWNGRADE,
13412                        "Update base revision code " + after.baseRevisionCode
13413                        + " is older than current " + before.baseRevisionCode);
13414            }
13415
13416            if (!ArrayUtils.isEmpty(after.splitNames)) {
13417                for (int i = 0; i < after.splitNames.length; i++) {
13418                    final String splitName = after.splitNames[i];
13419                    final int j = ArrayUtils.indexOf(before.splitNames, splitName);
13420                    if (j != -1) {
13421                        if (after.splitRevisionCodes[i] < before.splitRevisionCodes[j]) {
13422                            throw new PackageManagerException(INSTALL_FAILED_VERSION_DOWNGRADE,
13423                                    "Update split " + splitName + " revision code "
13424                                    + after.splitRevisionCodes[i] + " is older than current "
13425                                    + before.splitRevisionCodes[j]);
13426                        }
13427                    }
13428                }
13429            }
13430        }
13431    }
13432}
13433