PackageManagerService.java revision 9f60c08a446e38f9e2d5271546ef69ca5941eba9 
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_FORWARD_LOCK;
45import static android.content.pm.PackageManager.INSTALL_PARSE_FAILED_INCONSISTENT_CERTIFICATES;
46import static android.content.pm.PackageParser.isApkFile;
47import static android.os.Process.PACKAGE_INFO_GID;
48import static android.os.Process.SYSTEM_UID;
49import static android.system.OsConstants.O_CREAT;
50import static android.system.OsConstants.O_RDWR;
51import static com.android.internal.app.IntentForwarderActivity.FORWARD_INTENT_TO_MANAGED_PROFILE;
52import static com.android.internal.app.IntentForwarderActivity.FORWARD_INTENT_TO_USER_OWNER;
53import static com.android.internal.content.NativeLibraryHelper.LIB64_DIR_NAME;
54import static com.android.internal.content.NativeLibraryHelper.LIB_DIR_NAME;
55import static com.android.internal.util.ArrayUtils.appendInt;
56import static com.android.internal.util.ArrayUtils.removeInt;
57
58import android.util.ArrayMap;
59
60import com.android.internal.R;
61import com.android.internal.app.IMediaContainerService;
62import com.android.internal.app.ResolverActivity;
63import com.android.internal.content.NativeLibraryHelper;
64import com.android.internal.content.PackageHelper;
65import com.android.internal.os.IParcelFileDescriptorFactory;
66import com.android.internal.util.ArrayUtils;
67import com.android.internal.util.FastPrintWriter;
68import com.android.internal.util.FastXmlSerializer;
69import com.android.internal.util.IndentingPrintWriter;
70import com.android.server.EventLogTags;
71import com.android.server.IntentResolver;
72import com.android.server.LocalServices;
73import com.android.server.ServiceThread;
74import com.android.server.SystemConfig;
75import com.android.server.Watchdog;
76import com.android.server.pm.Settings.DatabaseVersion;
77import com.android.server.storage.DeviceStorageMonitorInternal;
78
79import org.xmlpull.v1.XmlSerializer;
80
81import android.app.ActivityManager;
82import android.app.ActivityManagerNative;
83import android.app.AppGlobals;
84import android.app.IActivityManager;
85import android.app.admin.IDevicePolicyManager;
86import android.app.backup.IBackupManager;
87import android.app.usage.UsageStats;
88import android.app.usage.UsageStatsManager;
89import android.content.BroadcastReceiver;
90import android.content.ComponentName;
91import android.content.Context;
92import android.content.IIntentReceiver;
93import android.content.Intent;
94import android.content.IntentFilter;
95import android.content.IntentSender;
96import android.content.IntentSender.SendIntentException;
97import android.content.ServiceConnection;
98import android.content.pm.ActivityInfo;
99import android.content.pm.ApplicationInfo;
100import android.content.pm.FeatureInfo;
101import android.content.pm.IPackageDataObserver;
102import android.content.pm.IPackageDeleteObserver;
103import android.content.pm.IPackageDeleteObserver2;
104import android.content.pm.IPackageInstallObserver2;
105import android.content.pm.IPackageInstaller;
106import android.content.pm.IPackageManager;
107import android.content.pm.IPackageMoveObserver;
108import android.content.pm.IPackageStatsObserver;
109import android.content.pm.InstrumentationInfo;
110import android.content.pm.KeySet;
111import android.content.pm.ManifestDigest;
112import android.content.pm.PackageCleanItem;
113import android.content.pm.PackageInfo;
114import android.content.pm.PackageInfoLite;
115import android.content.pm.PackageInstaller;
116import android.content.pm.PackageManager;
117import android.content.pm.PackageManager.LegacyPackageDeleteObserver;
118import android.content.pm.PackageParser.ActivityIntentInfo;
119import android.content.pm.PackageParser.PackageLite;
120import android.content.pm.PackageParser.PackageParserException;
121import android.content.pm.PackageParser;
122import android.content.pm.PackageStats;
123import android.content.pm.PackageUserState;
124import android.content.pm.ParceledListSlice;
125import android.content.pm.PermissionGroupInfo;
126import android.content.pm.PermissionInfo;
127import android.content.pm.ProviderInfo;
128import android.content.pm.ResolveInfo;
129import android.content.pm.ServiceInfo;
130import android.content.pm.Signature;
131import android.content.pm.UserInfo;
132import android.content.pm.VerificationParams;
133import android.content.pm.VerifierDeviceIdentity;
134import android.content.pm.VerifierInfo;
135import android.content.res.Resources;
136import android.hardware.display.DisplayManager;
137import android.net.Uri;
138import android.os.Binder;
139import android.os.Build;
140import android.os.Bundle;
141import android.os.Environment;
142import android.os.Environment.UserEnvironment;
143import android.os.storage.StorageManager;
144import android.os.Debug;
145import android.os.FileUtils;
146import android.os.Handler;
147import android.os.IBinder;
148import android.os.Looper;
149import android.os.Message;
150import android.os.Parcel;
151import android.os.ParcelFileDescriptor;
152import android.os.Process;
153import android.os.RemoteException;
154import android.os.SELinux;
155import android.os.ServiceManager;
156import android.os.SystemClock;
157import android.os.SystemProperties;
158import android.os.UserHandle;
159import android.os.UserManager;
160import android.security.KeyStore;
161import android.security.SystemKeyStore;
162import android.system.ErrnoException;
163import android.system.Os;
164import android.system.StructStat;
165import android.text.TextUtils;
166import android.util.ArraySet;
167import android.util.AtomicFile;
168import android.util.DisplayMetrics;
169import android.util.EventLog;
170import android.util.ExceptionUtils;
171import android.util.Log;
172import android.util.LogPrinter;
173import android.util.PrintStreamPrinter;
174import android.util.Slog;
175import android.util.SparseArray;
176import android.util.SparseBooleanArray;
177import android.view.Display;
178
179import java.io.BufferedInputStream;
180import java.io.BufferedOutputStream;
181import java.io.BufferedReader;
182import java.io.File;
183import java.io.FileDescriptor;
184import java.io.FileInputStream;
185import java.io.FileNotFoundException;
186import java.io.FileOutputStream;
187import java.io.FileReader;
188import java.io.FilenameFilter;
189import java.io.IOException;
190import java.io.InputStream;
191import java.io.PrintWriter;
192import java.nio.charset.StandardCharsets;
193import java.security.NoSuchAlgorithmException;
194import java.security.PublicKey;
195import java.security.cert.CertificateEncodingException;
196import java.security.cert.CertificateException;
197import java.text.SimpleDateFormat;
198import java.util.ArrayList;
199import java.util.Arrays;
200import java.util.Collection;
201import java.util.Collections;
202import java.util.Comparator;
203import java.util.Date;
204import java.util.Iterator;
205import java.util.List;
206import java.util.Map;
207import java.util.Objects;
208import java.util.Set;
209import java.util.concurrent.atomic.AtomicBoolean;
210import java.util.concurrent.atomic.AtomicLong;
211
212import dalvik.system.DexFile;
213import dalvik.system.StaleDexCacheError;
214import dalvik.system.VMRuntime;
215
216import libcore.io.IoUtils;
217import libcore.util.EmptyArray;
218
219/**
220 * Keep track of all those .apks everywhere.
221 *
222 * This is very central to the platform's security; please run the unit
223 * tests whenever making modifications here:
224 *
225mmm frameworks/base/tests/AndroidTests
226adb install -r -f out/target/product/passion/data/app/AndroidTests.apk
227adb shell am instrument -w -e class com.android.unit_tests.PackageManagerTests com.android.unit_tests/android.test.InstrumentationTestRunner
228 *
229 * {@hide}
230 */
231public class PackageManagerService extends IPackageManager.Stub {
232    static final String TAG = "PackageManager";
233    static final boolean DEBUG_SETTINGS = false;
234    static final boolean DEBUG_PREFERRED = false;
235    static final boolean DEBUG_UPGRADE = false;
236    private static final boolean DEBUG_INSTALL = false;
237    private static final boolean DEBUG_REMOVE = false;
238    private static final boolean DEBUG_BROADCASTS = false;
239    private static final boolean DEBUG_SHOW_INFO = false;
240    private static final boolean DEBUG_PACKAGE_INFO = false;
241    private static final boolean DEBUG_INTENT_MATCHING = false;
242    private static final boolean DEBUG_PACKAGE_SCANNING = false;
243    private static final boolean DEBUG_VERIFY = false;
244    private static final boolean DEBUG_DEXOPT = false;
245    private static final boolean DEBUG_ABI_SELECTION = false;
246
247    private static final int RADIO_UID = Process.PHONE_UID;
248    private static final int LOG_UID = Process.LOG_UID;
249    private static final int NFC_UID = Process.NFC_UID;
250    private static final int BLUETOOTH_UID = Process.BLUETOOTH_UID;
251    private static final int SHELL_UID = Process.SHELL_UID;
252
253    // Cap the size of permission trees that 3rd party apps can define
254    private static final int MAX_PERMISSION_TREE_FOOTPRINT = 32768;     // characters of text
255
256    // Suffix used during package installation when copying/moving
257    // package apks to install directory.
258    private static final String INSTALL_PACKAGE_SUFFIX = "-";
259
260    static final int SCAN_NO_DEX = 1<<1;
261    static final int SCAN_FORCE_DEX = 1<<2;
262    static final int SCAN_UPDATE_SIGNATURE = 1<<3;
263    static final int SCAN_NEW_INSTALL = 1<<4;
264    static final int SCAN_NO_PATHS = 1<<5;
265    static final int SCAN_UPDATE_TIME = 1<<6;
266    static final int SCAN_DEFER_DEX = 1<<7;
267    static final int SCAN_BOOTING = 1<<8;
268    static final int SCAN_TRUSTED_OVERLAY = 1<<9;
269    static final int SCAN_DELETE_DATA_ON_FAILURES = 1<<10;
270    static final int SCAN_REPLACING = 1<<11;
271
272    static final int REMOVE_CHATTY = 1<<16;
273
274    /**
275     * Timeout (in milliseconds) after which the watchdog should declare that
276     * our handler thread is wedged.  The usual default for such things is one
277     * minute but we sometimes do very lengthy I/O operations on this thread,
278     * such as installing multi-gigabyte applications, so ours needs to be longer.
279     */
280    private static final long WATCHDOG_TIMEOUT = 1000*60*10;     // ten minutes
281
282    /**
283     * Whether verification is enabled by default.
284     */
285    private static final boolean DEFAULT_VERIFY_ENABLE = true;
286
287    /**
288     * The default maximum time to wait for the verification agent to return in
289     * milliseconds.
290     */
291    private static final long DEFAULT_VERIFICATION_TIMEOUT = 10 * 1000;
292
293    /**
294     * The default response for package verification timeout.
295     *
296     * This can be either PackageManager.VERIFICATION_ALLOW or
297     * PackageManager.VERIFICATION_REJECT.
298     */
299    private static final int DEFAULT_VERIFICATION_RESPONSE = PackageManager.VERIFICATION_ALLOW;
300
301    static final String DEFAULT_CONTAINER_PACKAGE = "com.android.defcontainer";
302
303    static final ComponentName DEFAULT_CONTAINER_COMPONENT = new ComponentName(
304            DEFAULT_CONTAINER_PACKAGE,
305            "com.android.defcontainer.DefaultContainerService");
306
307    private static final String PACKAGE_MIME_TYPE = "application/vnd.android.package-archive";
308
309    private static final String VENDOR_OVERLAY_DIR = "/vendor/overlay";
310
311    private static String sPreferredInstructionSet;
312
313    final ServiceThread mHandlerThread;
314
315    private static final String IDMAP_PREFIX = "/data/resource-cache/";
316    private static final String IDMAP_SUFFIX = "@idmap";
317
318    final PackageHandler mHandler;
319
320    /**
321     * Messages for {@link #mHandler} that need to wait for system ready before
322     * being dispatched.
323     */
324    private ArrayList<Message> mPostSystemReadyMessages;
325
326    final int mSdkVersion = Build.VERSION.SDK_INT;
327
328    final Context mContext;
329    final boolean mFactoryTest;
330    final boolean mOnlyCore;
331    final boolean mLazyDexOpt;
332    final long mDexOptLRUThresholdInMills;
333    final DisplayMetrics mMetrics;
334    final int mDefParseFlags;
335    final String[] mSeparateProcesses;
336    final boolean mIsUpgrade;
337
338    // This is where all application persistent data goes.
339    final File mAppDataDir;
340
341    // This is where all application persistent data goes for secondary users.
342    final File mUserAppDataDir;
343
344    /** The location for ASEC container files on internal storage. */
345    final String mAsecInternalPath;
346
347    // Used for privilege escalation. MUST NOT BE CALLED WITH mPackages
348    // LOCK HELD.  Can be called with mInstallLock held.
349    final Installer mInstaller;
350
351    /** Directory where installed third-party apps stored */
352    final File mAppInstallDir;
353
354    /**
355     * Directory to which applications installed internally have their
356     * 32 bit native libraries copied.
357     */
358    private File mAppLib32InstallDir;
359
360    // Directory containing the private parts (e.g. code and non-resource assets) of forward-locked
361    // apps.
362    final File mDrmAppPrivateInstallDir;
363
364    // ----------------------------------------------------------------
365
366    // Lock for state used when installing and doing other long running
367    // operations.  Methods that must be called with this lock held have
368    // the suffix "LI".
369    final Object mInstallLock = new Object();
370
371    // ----------------------------------------------------------------
372
373    // Keys are String (package name), values are Package.  This also serves
374    // as the lock for the global state.  Methods that must be called with
375    // this lock held have the prefix "LP".
376    final ArrayMap<String, PackageParser.Package> mPackages =
377            new ArrayMap<String, PackageParser.Package>();
378
379    // Tracks available target package names -> overlay package paths.
380    final ArrayMap<String, ArrayMap<String, PackageParser.Package>> mOverlays =
381        new ArrayMap<String, ArrayMap<String, PackageParser.Package>>();
382
383    final Settings mSettings;
384    boolean mRestoredSettings;
385
386    // System configuration read by SystemConfig.
387    final int[] mGlobalGids;
388    final SparseArray<ArraySet<String>> mSystemPermissions;
389    final ArrayMap<String, FeatureInfo> mAvailableFeatures;
390
391    // If mac_permissions.xml was found for seinfo labeling.
392    boolean mFoundPolicyFile;
393
394    // If a recursive restorecon of /data/data/<pkg> is needed.
395    private boolean mShouldRestoreconData = SELinuxMMAC.shouldRestorecon();
396
397    public static final class SharedLibraryEntry {
398        public final String path;
399        public final String apk;
400
401        SharedLibraryEntry(String _path, String _apk) {
402            path = _path;
403            apk = _apk;
404        }
405    }
406
407    // Currently known shared libraries.
408    final ArrayMap<String, SharedLibraryEntry> mSharedLibraries =
409            new ArrayMap<String, SharedLibraryEntry>();
410
411    // All available activities, for your resolving pleasure.
412    final ActivityIntentResolver mActivities =
413            new ActivityIntentResolver();
414
415    // All available receivers, for your resolving pleasure.
416    final ActivityIntentResolver mReceivers =
417            new ActivityIntentResolver();
418
419    // All available services, for your resolving pleasure.
420    final ServiceIntentResolver mServices = new ServiceIntentResolver();
421
422    // All available providers, for your resolving pleasure.
423    final ProviderIntentResolver mProviders = new ProviderIntentResolver();
424
425    // Mapping from provider base names (first directory in content URI codePath)
426    // to the provider information.
427    final ArrayMap<String, PackageParser.Provider> mProvidersByAuthority =
428            new ArrayMap<String, PackageParser.Provider>();
429
430    // Mapping from instrumentation class names to info about them.
431    final ArrayMap<ComponentName, PackageParser.Instrumentation> mInstrumentation =
432            new ArrayMap<ComponentName, PackageParser.Instrumentation>();
433
434    // Mapping from permission names to info about them.
435    final ArrayMap<String, PackageParser.PermissionGroup> mPermissionGroups =
436            new ArrayMap<String, PackageParser.PermissionGroup>();
437
438    // Packages whose data we have transfered into another package, thus
439    // should no longer exist.
440    final ArraySet<String> mTransferedPackages = new ArraySet<String>();
441
442    // Broadcast actions that are only available to the system.
443    final ArraySet<String> mProtectedBroadcasts = new ArraySet<String>();
444
445    /** List of packages waiting for verification. */
446    final SparseArray<PackageVerificationState> mPendingVerification
447            = new SparseArray<PackageVerificationState>();
448
449    /** Set of packages associated with each app op permission. */
450    final ArrayMap<String, ArraySet<String>> mAppOpPermissionPackages = new ArrayMap<>();
451
452    final PackageInstallerService mInstallerService;
453
454    ArraySet<PackageParser.Package> mDeferredDexOpt = null;
455
456    // Cache of users who need badging.
457    SparseBooleanArray mUserNeedsBadging = new SparseBooleanArray();
458
459    /** Token for keys in mPendingVerification. */
460    private int mPendingVerificationToken = 0;
461
462    volatile boolean mSystemReady;
463    volatile boolean mSafeMode;
464    volatile boolean mHasSystemUidErrors;
465
466    ApplicationInfo mAndroidApplication;
467    final ActivityInfo mResolveActivity = new ActivityInfo();
468    final ResolveInfo mResolveInfo = new ResolveInfo();
469    ComponentName mResolveComponentName;
470    PackageParser.Package mPlatformPackage;
471    ComponentName mCustomResolverComponentName;
472
473    boolean mResolverReplaced = false;
474
475    // Set of pending broadcasts for aggregating enable/disable of components.
476    static class PendingPackageBroadcasts {
477        // for each user id, a map of <package name -> components within that package>
478        final SparseArray<ArrayMap<String, ArrayList<String>>> mUidMap;
479
480        public PendingPackageBroadcasts() {
481            mUidMap = new SparseArray<ArrayMap<String, ArrayList<String>>>(2);
482        }
483
484        public ArrayList<String> get(int userId, String packageName) {
485            ArrayMap<String, ArrayList<String>> packages = getOrAllocate(userId);
486            return packages.get(packageName);
487        }
488
489        public void put(int userId, String packageName, ArrayList<String> components) {
490            ArrayMap<String, ArrayList<String>> packages = getOrAllocate(userId);
491            packages.put(packageName, components);
492        }
493
494        public void remove(int userId, String packageName) {
495            ArrayMap<String, ArrayList<String>> packages = mUidMap.get(userId);
496            if (packages != null) {
497                packages.remove(packageName);
498            }
499        }
500
501        public void remove(int userId) {
502            mUidMap.remove(userId);
503        }
504
505        public int userIdCount() {
506            return mUidMap.size();
507        }
508
509        public int userIdAt(int n) {
510            return mUidMap.keyAt(n);
511        }
512
513        public ArrayMap<String, ArrayList<String>> packagesForUserId(int userId) {
514            return mUidMap.get(userId);
515        }
516
517        public int size() {
518            // total number of pending broadcast entries across all userIds
519            int num = 0;
520            for (int i = 0; i< mUidMap.size(); i++) {
521                num += mUidMap.valueAt(i).size();
522            }
523            return num;
524        }
525
526        public void clear() {
527            mUidMap.clear();
528        }
529
530        private ArrayMap<String, ArrayList<String>> getOrAllocate(int userId) {
531            ArrayMap<String, ArrayList<String>> map = mUidMap.get(userId);
532            if (map == null) {
533                map = new ArrayMap<String, ArrayList<String>>();
534                mUidMap.put(userId, map);
535            }
536            return map;
537        }
538    }
539    final PendingPackageBroadcasts mPendingBroadcasts = new PendingPackageBroadcasts();
540
541    // Service Connection to remote media container service to copy
542    // package uri's from external media onto secure containers
543    // or internal storage.
544    private IMediaContainerService mContainerService = null;
545
546    static final int SEND_PENDING_BROADCAST = 1;
547    static final int MCS_BOUND = 3;
548    static final int END_COPY = 4;
549    static final int INIT_COPY = 5;
550    static final int MCS_UNBIND = 6;
551    static final int START_CLEANING_PACKAGE = 7;
552    static final int FIND_INSTALL_LOC = 8;
553    static final int POST_INSTALL = 9;
554    static final int MCS_RECONNECT = 10;
555    static final int MCS_GIVE_UP = 11;
556    static final int UPDATED_MEDIA_STATUS = 12;
557    static final int WRITE_SETTINGS = 13;
558    static final int WRITE_PACKAGE_RESTRICTIONS = 14;
559    static final int PACKAGE_VERIFIED = 15;
560    static final int CHECK_PENDING_VERIFICATION = 16;
561
562    static final int WRITE_SETTINGS_DELAY = 10*1000;  // 10 seconds
563
564    // Delay time in millisecs
565    static final int BROADCAST_DELAY = 10 * 1000;
566
567    static UserManagerService sUserManager;
568
569    // Stores a list of users whose package restrictions file needs to be updated
570    private ArraySet<Integer> mDirtyUsers = new ArraySet<Integer>();
571
572    final private DefaultContainerConnection mDefContainerConn =
573            new DefaultContainerConnection();
574    class DefaultContainerConnection implements ServiceConnection {
575        public void onServiceConnected(ComponentName name, IBinder service) {
576            if (DEBUG_SD_INSTALL) Log.i(TAG, "onServiceConnected");
577            IMediaContainerService imcs =
578                IMediaContainerService.Stub.asInterface(service);
579            mHandler.sendMessage(mHandler.obtainMessage(MCS_BOUND, imcs));
580        }
581
582        public void onServiceDisconnected(ComponentName name) {
583            if (DEBUG_SD_INSTALL) Log.i(TAG, "onServiceDisconnected");
584        }
585    };
586
587    // Recordkeeping of restore-after-install operations that are currently in flight
588    // between the Package Manager and the Backup Manager
589    class PostInstallData {
590        public InstallArgs args;
591        public PackageInstalledInfo res;
592
593        PostInstallData(InstallArgs _a, PackageInstalledInfo _r) {
594            args = _a;
595            res = _r;
596        }
597    };
598    final SparseArray<PostInstallData> mRunningInstalls = new SparseArray<PostInstallData>();
599    int mNextInstallToken = 1;  // nonzero; will be wrapped back to 1 when ++ overflows
600
601    private final String mRequiredVerifierPackage;
602
603    private final PackageUsage mPackageUsage = new PackageUsage();
604
605    private class PackageUsage {
606        private static final int WRITE_INTERVAL
607            = (DEBUG_DEXOPT) ? 0 : 30*60*1000; // 30m in ms
608
609        private final Object mFileLock = new Object();
610        private final AtomicLong mLastWritten = new AtomicLong(0);
611        private final AtomicBoolean mBackgroundWriteRunning = new AtomicBoolean(false);
612
613        private boolean mIsHistoricalPackageUsageAvailable = true;
614
615        boolean isHistoricalPackageUsageAvailable() {
616            return mIsHistoricalPackageUsageAvailable;
617        }
618
619        void write(boolean force) {
620            if (force) {
621                writeInternal();
622                return;
623            }
624            if (SystemClock.elapsedRealtime() - mLastWritten.get() < WRITE_INTERVAL
625                && !DEBUG_DEXOPT) {
626                return;
627            }
628            if (mBackgroundWriteRunning.compareAndSet(false, true)) {
629                new Thread("PackageUsage_DiskWriter") {
630                    @Override
631                    public void run() {
632                        try {
633                            writeInternal();
634                        } finally {
635                            mBackgroundWriteRunning.set(false);
636                        }
637                    }
638                }.start();
639            }
640        }
641
642        private void writeInternal() {
643            synchronized (mPackages) {
644                synchronized (mFileLock) {
645                    AtomicFile file = getFile();
646                    FileOutputStream f = null;
647                    try {
648                        f = file.startWrite();
649                        BufferedOutputStream out = new BufferedOutputStream(f);
650                        FileUtils.setPermissions(file.getBaseFile().getPath(), 0660, SYSTEM_UID, PACKAGE_INFO_GID);
651                        StringBuilder sb = new StringBuilder();
652                        for (PackageParser.Package pkg : mPackages.values()) {
653                            if (pkg.mLastPackageUsageTimeInMills == 0) {
654                                continue;
655                            }
656                            sb.setLength(0);
657                            sb.append(pkg.packageName);
658                            sb.append(' ');
659                            sb.append((long)pkg.mLastPackageUsageTimeInMills);
660                            sb.append('\n');
661                            out.write(sb.toString().getBytes(StandardCharsets.US_ASCII));
662                        }
663                        out.flush();
664                        file.finishWrite(f);
665                    } catch (IOException e) {
666                        if (f != null) {
667                            file.failWrite(f);
668                        }
669                        Log.e(TAG, "Failed to write package usage times", e);
670                    }
671                }
672            }
673            mLastWritten.set(SystemClock.elapsedRealtime());
674        }
675
676        void readLP() {
677            synchronized (mFileLock) {
678                AtomicFile file = getFile();
679                BufferedInputStream in = null;
680                try {
681                    in = new BufferedInputStream(file.openRead());
682                    StringBuffer sb = new StringBuffer();
683                    while (true) {
684                        String packageName = readToken(in, sb, ' ');
685                        if (packageName == null) {
686                            break;
687                        }
688                        String timeInMillisString = readToken(in, sb, '\n');
689                        if (timeInMillisString == null) {
690                            throw new IOException("Failed to find last usage time for package "
691                                                  + packageName);
692                        }
693                        PackageParser.Package pkg = mPackages.get(packageName);
694                        if (pkg == null) {
695                            continue;
696                        }
697                        long timeInMillis;
698                        try {
699                            timeInMillis = Long.parseLong(timeInMillisString.toString());
700                        } catch (NumberFormatException e) {
701                            throw new IOException("Failed to parse " + timeInMillisString
702                                                  + " as a long.", e);
703                        }
704                        pkg.mLastPackageUsageTimeInMills = timeInMillis;
705                    }
706                } catch (FileNotFoundException expected) {
707                    mIsHistoricalPackageUsageAvailable = false;
708                } catch (IOException e) {
709                    Log.w(TAG, "Failed to read package usage times", e);
710                } finally {
711                    IoUtils.closeQuietly(in);
712                }
713            }
714            mLastWritten.set(SystemClock.elapsedRealtime());
715        }
716
717        private String readToken(InputStream in, StringBuffer sb, char endOfToken)
718                throws IOException {
719            sb.setLength(0);
720            while (true) {
721                int ch = in.read();
722                if (ch == -1) {
723                    if (sb.length() == 0) {
724                        return null;
725                    }
726                    throw new IOException("Unexpected EOF");
727                }
728                if (ch == endOfToken) {
729                    return sb.toString();
730                }
731                sb.append((char)ch);
732            }
733        }
734
735        private AtomicFile getFile() {
736            File dataDir = Environment.getDataDirectory();
737            File systemDir = new File(dataDir, "system");
738            File fname = new File(systemDir, "package-usage.list");
739            return new AtomicFile(fname);
740        }
741    }
742
743    class PackageHandler extends Handler {
744        private boolean mBound = false;
745        final ArrayList<HandlerParams> mPendingInstalls =
746            new ArrayList<HandlerParams>();
747
748        private boolean connectToService() {
749            if (DEBUG_SD_INSTALL) Log.i(TAG, "Trying to bind to" +
750                    " DefaultContainerService");
751            Intent service = new Intent().setComponent(DEFAULT_CONTAINER_COMPONENT);
752            Process.setThreadPriority(Process.THREAD_PRIORITY_DEFAULT);
753            if (mContext.bindServiceAsUser(service, mDefContainerConn,
754                    Context.BIND_AUTO_CREATE, UserHandle.OWNER)) {
755                Process.setThreadPriority(Process.THREAD_PRIORITY_BACKGROUND);
756                mBound = true;
757                return true;
758            }
759            Process.setThreadPriority(Process.THREAD_PRIORITY_BACKGROUND);
760            return false;
761        }
762
763        private void disconnectService() {
764            mContainerService = null;
765            mBound = false;
766            Process.setThreadPriority(Process.THREAD_PRIORITY_DEFAULT);
767            mContext.unbindService(mDefContainerConn);
768            Process.setThreadPriority(Process.THREAD_PRIORITY_BACKGROUND);
769        }
770
771        PackageHandler(Looper looper) {
772            super(looper);
773        }
774
775        public void handleMessage(Message msg) {
776            try {
777                doHandleMessage(msg);
778            } finally {
779                Process.setThreadPriority(Process.THREAD_PRIORITY_BACKGROUND);
780            }
781        }
782
783        void doHandleMessage(Message msg) {
784            switch (msg.what) {
785                case INIT_COPY: {
786                    HandlerParams params = (HandlerParams) msg.obj;
787                    int idx = mPendingInstalls.size();
788                    if (DEBUG_INSTALL) Slog.i(TAG, "init_copy idx=" + idx + ": " + params);
789                    // If a bind was already initiated we dont really
790                    // need to do anything. The pending install
791                    // will be processed later on.
792                    if (!mBound) {
793                        // If this is the only one pending we might
794                        // have to bind to the service again.
795                        if (!connectToService()) {
796                            Slog.e(TAG, "Failed to bind to media container service");
797                            params.serviceError();
798                            return;
799                        } else {
800                            // Once we bind to the service, the first
801                            // pending request will be processed.
802                            mPendingInstalls.add(idx, params);
803                        }
804                    } else {
805                        mPendingInstalls.add(idx, params);
806                        // Already bound to the service. Just make
807                        // sure we trigger off processing the first request.
808                        if (idx == 0) {
809                            mHandler.sendEmptyMessage(MCS_BOUND);
810                        }
811                    }
812                    break;
813                }
814                case MCS_BOUND: {
815                    if (DEBUG_INSTALL) Slog.i(TAG, "mcs_bound");
816                    if (msg.obj != null) {
817                        mContainerService = (IMediaContainerService) msg.obj;
818                    }
819                    if (mContainerService == null) {
820                        // Something seriously wrong. Bail out
821                        Slog.e(TAG, "Cannot bind to media container service");
822                        for (HandlerParams params : mPendingInstalls) {
823                            // Indicate service bind error
824                            params.serviceError();
825                        }
826                        mPendingInstalls.clear();
827                    } else if (mPendingInstalls.size() > 0) {
828                        HandlerParams params = mPendingInstalls.get(0);
829                        if (params != null) {
830                            if (params.startCopy()) {
831                                // We are done...  look for more work or to
832                                // go idle.
833                                if (DEBUG_SD_INSTALL) Log.i(TAG,
834                                        "Checking for more work or unbind...");
835                                // Delete pending install
836                                if (mPendingInstalls.size() > 0) {
837                                    mPendingInstalls.remove(0);
838                                }
839                                if (mPendingInstalls.size() == 0) {
840                                    if (mBound) {
841                                        if (DEBUG_SD_INSTALL) Log.i(TAG,
842                                                "Posting delayed MCS_UNBIND");
843                                        removeMessages(MCS_UNBIND);
844                                        Message ubmsg = obtainMessage(MCS_UNBIND);
845                                        // Unbind after a little delay, to avoid
846                                        // continual thrashing.
847                                        sendMessageDelayed(ubmsg, 10000);
848                                    }
849                                } else {
850                                    // There are more pending requests in queue.
851                                    // Just post MCS_BOUND message to trigger processing
852                                    // of next pending install.
853                                    if (DEBUG_SD_INSTALL) Log.i(TAG,
854                                            "Posting MCS_BOUND for next work");
855                                    mHandler.sendEmptyMessage(MCS_BOUND);
856                                }
857                            }
858                        }
859                    } else {
860                        // Should never happen ideally.
861                        Slog.w(TAG, "Empty queue");
862                    }
863                    break;
864                }
865                case MCS_RECONNECT: {
866                    if (DEBUG_INSTALL) Slog.i(TAG, "mcs_reconnect");
867                    if (mPendingInstalls.size() > 0) {
868                        if (mBound) {
869                            disconnectService();
870                        }
871                        if (!connectToService()) {
872                            Slog.e(TAG, "Failed to bind to media container service");
873                            for (HandlerParams params : mPendingInstalls) {
874                                // Indicate service bind error
875                                params.serviceError();
876                            }
877                            mPendingInstalls.clear();
878                        }
879                    }
880                    break;
881                }
882                case MCS_UNBIND: {
883                    // If there is no actual work left, then time to unbind.
884                    if (DEBUG_INSTALL) Slog.i(TAG, "mcs_unbind");
885
886                    if (mPendingInstalls.size() == 0 && mPendingVerification.size() == 0) {
887                        if (mBound) {
888                            if (DEBUG_INSTALL) Slog.i(TAG, "calling disconnectService()");
889
890                            disconnectService();
891                        }
892                    } else if (mPendingInstalls.size() > 0) {
893                        // There are more pending requests in queue.
894                        // Just post MCS_BOUND message to trigger processing
895                        // of next pending install.
896                        mHandler.sendEmptyMessage(MCS_BOUND);
897                    }
898
899                    break;
900                }
901                case MCS_GIVE_UP: {
902                    if (DEBUG_INSTALL) Slog.i(TAG, "mcs_giveup too many retries");
903                    mPendingInstalls.remove(0);
904                    break;
905                }
906                case SEND_PENDING_BROADCAST: {
907                    String packages[];
908                    ArrayList<String> components[];
909                    int size = 0;
910                    int uids[];
911                    Process.setThreadPriority(Process.THREAD_PRIORITY_DEFAULT);
912                    synchronized (mPackages) {
913                        if (mPendingBroadcasts == null) {
914                            return;
915                        }
916                        size = mPendingBroadcasts.size();
917                        if (size <= 0) {
918                            // Nothing to be done. Just return
919                            return;
920                        }
921                        packages = new String[size];
922                        components = new ArrayList[size];
923                        uids = new int[size];
924                        int i = 0;  // filling out the above arrays
925
926                        for (int n = 0; n < mPendingBroadcasts.userIdCount(); n++) {
927                            int packageUserId = mPendingBroadcasts.userIdAt(n);
928                            Iterator<Map.Entry<String, ArrayList<String>>> it
929                                    = mPendingBroadcasts.packagesForUserId(packageUserId)
930                                            .entrySet().iterator();
931                            while (it.hasNext() && i < size) {
932                                Map.Entry<String, ArrayList<String>> ent = it.next();
933                                packages[i] = ent.getKey();
934                                components[i] = ent.getValue();
935                                PackageSetting ps = mSettings.mPackages.get(ent.getKey());
936                                uids[i] = (ps != null)
937                                        ? UserHandle.getUid(packageUserId, ps.appId)
938                                        : -1;
939                                i++;
940                            }
941                        }
942                        size = i;
943                        mPendingBroadcasts.clear();
944                    }
945                    // Send broadcasts
946                    for (int i = 0; i < size; i++) {
947                        sendPackageChangedBroadcast(packages[i], true, components[i], uids[i]);
948                    }
949                    Process.setThreadPriority(Process.THREAD_PRIORITY_BACKGROUND);
950                    break;
951                }
952                case START_CLEANING_PACKAGE: {
953                    Process.setThreadPriority(Process.THREAD_PRIORITY_DEFAULT);
954                    final String packageName = (String)msg.obj;
955                    final int userId = msg.arg1;
956                    final boolean andCode = msg.arg2 != 0;
957                    synchronized (mPackages) {
958                        if (userId == UserHandle.USER_ALL) {
959                            int[] users = sUserManager.getUserIds();
960                            for (int user : users) {
961                                mSettings.addPackageToCleanLPw(
962                                        new PackageCleanItem(user, packageName, andCode));
963                            }
964                        } else {
965                            mSettings.addPackageToCleanLPw(
966                                    new PackageCleanItem(userId, packageName, andCode));
967                        }
968                    }
969                    Process.setThreadPriority(Process.THREAD_PRIORITY_BACKGROUND);
970                    startCleaningPackages();
971                } break;
972                case POST_INSTALL: {
973                    if (DEBUG_INSTALL) Log.v(TAG, "Handling post-install for " + msg.arg1);
974                    PostInstallData data = mRunningInstalls.get(msg.arg1);
975                    mRunningInstalls.delete(msg.arg1);
976                    boolean deleteOld = false;
977
978                    if (data != null) {
979                        InstallArgs args = data.args;
980                        PackageInstalledInfo res = data.res;
981
982                        if (res.returnCode == PackageManager.INSTALL_SUCCEEDED) {
983                            res.removedInfo.sendBroadcast(false, true, false);
984                            Bundle extras = new Bundle(1);
985                            extras.putInt(Intent.EXTRA_UID, res.uid);
986                            // Determine the set of users who are adding this
987                            // package for the first time vs. those who are seeing
988                            // an update.
989                            int[] firstUsers;
990                            int[] updateUsers = new int[0];
991                            if (res.origUsers == null || res.origUsers.length == 0) {
992                                firstUsers = res.newUsers;
993                            } else {
994                                firstUsers = new int[0];
995                                for (int i=0; i<res.newUsers.length; i++) {
996                                    int user = res.newUsers[i];
997                                    boolean isNew = true;
998                                    for (int j=0; j<res.origUsers.length; j++) {
999                                        if (res.origUsers[j] == user) {
1000                                            isNew = false;
1001                                            break;
1002                                        }
1003                                    }
1004                                    if (isNew) {
1005                                        int[] newFirst = new int[firstUsers.length+1];
1006                                        System.arraycopy(firstUsers, 0, newFirst, 0,
1007                                                firstUsers.length);
1008                                        newFirst[firstUsers.length] = user;
1009                                        firstUsers = newFirst;
1010                                    } else {
1011                                        int[] newUpdate = new int[updateUsers.length+1];
1012                                        System.arraycopy(updateUsers, 0, newUpdate, 0,
1013                                                updateUsers.length);
1014                                        newUpdate[updateUsers.length] = user;
1015                                        updateUsers = newUpdate;
1016                                    }
1017                                }
1018                            }
1019                            sendPackageBroadcast(Intent.ACTION_PACKAGE_ADDED,
1020                                    res.pkg.applicationInfo.packageName,
1021                                    extras, null, null, firstUsers);
1022                            final boolean update = res.removedInfo.removedPackage != null;
1023                            if (update) {
1024                                extras.putBoolean(Intent.EXTRA_REPLACING, true);
1025                            }
1026                            sendPackageBroadcast(Intent.ACTION_PACKAGE_ADDED,
1027                                    res.pkg.applicationInfo.packageName,
1028                                    extras, null, null, updateUsers);
1029                            if (update) {
1030                                sendPackageBroadcast(Intent.ACTION_PACKAGE_REPLACED,
1031                                        res.pkg.applicationInfo.packageName,
1032                                        extras, null, null, updateUsers);
1033                                sendPackageBroadcast(Intent.ACTION_MY_PACKAGE_REPLACED,
1034                                        null, null,
1035                                        res.pkg.applicationInfo.packageName, null, updateUsers);
1036
1037                                // treat asec-hosted packages like removable media on upgrade
1038                                if (isForwardLocked(res.pkg) || isExternal(res.pkg)) {
1039                                    if (DEBUG_INSTALL) {
1040                                        Slog.i(TAG, "upgrading pkg " + res.pkg
1041                                                + " is ASEC-hosted -> AVAILABLE");
1042                                    }
1043                                    int[] uidArray = new int[] { res.pkg.applicationInfo.uid };
1044                                    ArrayList<String> pkgList = new ArrayList<String>(1);
1045                                    pkgList.add(res.pkg.applicationInfo.packageName);
1046                                    sendResourcesChangedBroadcast(true, true,
1047                                            pkgList,uidArray, null);
1048                                }
1049                            }
1050                            if (res.removedInfo.args != null) {
1051                                // Remove the replaced package's older resources safely now
1052                                deleteOld = true;
1053                            }
1054
1055                            // Log current value of "unknown sources" setting
1056                            EventLog.writeEvent(EventLogTags.UNKNOWN_SOURCES_ENABLED,
1057                                getUnknownSourcesSettings());
1058                        }
1059                        // Force a gc to clear up things
1060                        Runtime.getRuntime().gc();
1061                        // We delete after a gc for applications  on sdcard.
1062                        if (deleteOld) {
1063                            synchronized (mInstallLock) {
1064                                res.removedInfo.args.doPostDeleteLI(true);
1065                            }
1066                        }
1067                        if (args.observer != null) {
1068                            try {
1069                                Bundle extras = extrasForInstallResult(res);
1070                                args.observer.onPackageInstalled(res.name, res.returnCode,
1071                                        res.returnMsg, extras);
1072                            } catch (RemoteException e) {
1073                                Slog.i(TAG, "Observer no longer exists.");
1074                            }
1075                        }
1076                    } else {
1077                        Slog.e(TAG, "Bogus post-install token " + msg.arg1);
1078                    }
1079                } break;
1080                case UPDATED_MEDIA_STATUS: {
1081                    if (DEBUG_SD_INSTALL) Log.i(TAG, "Got message UPDATED_MEDIA_STATUS");
1082                    boolean reportStatus = msg.arg1 == 1;
1083                    boolean doGc = msg.arg2 == 1;
1084                    if (DEBUG_SD_INSTALL) Log.i(TAG, "reportStatus=" + reportStatus + ", doGc = " + doGc);
1085                    if (doGc) {
1086                        // Force a gc to clear up stale containers.
1087                        Runtime.getRuntime().gc();
1088                    }
1089                    if (msg.obj != null) {
1090                        @SuppressWarnings("unchecked")
1091                        Set<AsecInstallArgs> args = (Set<AsecInstallArgs>) msg.obj;
1092                        if (DEBUG_SD_INSTALL) Log.i(TAG, "Unloading all containers");
1093                        // Unload containers
1094                        unloadAllContainers(args);
1095                    }
1096                    if (reportStatus) {
1097                        try {
1098                            if (DEBUG_SD_INSTALL) Log.i(TAG, "Invoking MountService call back");
1099                            PackageHelper.getMountService().finishMediaUpdate();
1100                        } catch (RemoteException e) {
1101                            Log.e(TAG, "MountService not running?");
1102                        }
1103                    }
1104                } break;
1105                case WRITE_SETTINGS: {
1106                    Process.setThreadPriority(Process.THREAD_PRIORITY_DEFAULT);
1107                    synchronized (mPackages) {
1108                        removeMessages(WRITE_SETTINGS);
1109                        removeMessages(WRITE_PACKAGE_RESTRICTIONS);
1110                        mSettings.writeLPr();
1111                        mDirtyUsers.clear();
1112                    }
1113                    Process.setThreadPriority(Process.THREAD_PRIORITY_BACKGROUND);
1114                } break;
1115                case WRITE_PACKAGE_RESTRICTIONS: {
1116                    Process.setThreadPriority(Process.THREAD_PRIORITY_DEFAULT);
1117                    synchronized (mPackages) {
1118                        removeMessages(WRITE_PACKAGE_RESTRICTIONS);
1119                        for (int userId : mDirtyUsers) {
1120                            mSettings.writePackageRestrictionsLPr(userId);
1121                        }
1122                        mDirtyUsers.clear();
1123                    }
1124                    Process.setThreadPriority(Process.THREAD_PRIORITY_BACKGROUND);
1125                } break;
1126                case CHECK_PENDING_VERIFICATION: {
1127                    final int verificationId = msg.arg1;
1128                    final PackageVerificationState state = mPendingVerification.get(verificationId);
1129
1130                    if ((state != null) && !state.timeoutExtended()) {
1131                        final InstallArgs args = state.getInstallArgs();
1132                        final Uri originUri = Uri.fromFile(args.origin.resolvedFile);
1133
1134                        Slog.i(TAG, "Verification timed out for " + originUri);
1135                        mPendingVerification.remove(verificationId);
1136
1137                        int ret = PackageManager.INSTALL_FAILED_VERIFICATION_FAILURE;
1138
1139                        if (getDefaultVerificationResponse() == PackageManager.VERIFICATION_ALLOW) {
1140                            Slog.i(TAG, "Continuing with installation of " + originUri);
1141                            state.setVerifierResponse(Binder.getCallingUid(),
1142                                    PackageManager.VERIFICATION_ALLOW_WITHOUT_SUFFICIENT);
1143                            broadcastPackageVerified(verificationId, originUri,
1144                                    PackageManager.VERIFICATION_ALLOW,
1145                                    state.getInstallArgs().getUser());
1146                            try {
1147                                ret = args.copyApk(mContainerService, true);
1148                            } catch (RemoteException e) {
1149                                Slog.e(TAG, "Could not contact the ContainerService");
1150                            }
1151                        } else {
1152                            broadcastPackageVerified(verificationId, originUri,
1153                                    PackageManager.VERIFICATION_REJECT,
1154                                    state.getInstallArgs().getUser());
1155                        }
1156
1157                        processPendingInstall(args, ret);
1158                        mHandler.sendEmptyMessage(MCS_UNBIND);
1159                    }
1160                    break;
1161                }
1162                case PACKAGE_VERIFIED: {
1163                    final int verificationId = msg.arg1;
1164
1165                    final PackageVerificationState state = mPendingVerification.get(verificationId);
1166                    if (state == null) {
1167                        Slog.w(TAG, "Invalid verification token " + verificationId + " received");
1168                        break;
1169                    }
1170
1171                    final PackageVerificationResponse response = (PackageVerificationResponse) msg.obj;
1172
1173                    state.setVerifierResponse(response.callerUid, response.code);
1174
1175                    if (state.isVerificationComplete()) {
1176                        mPendingVerification.remove(verificationId);
1177
1178                        final InstallArgs args = state.getInstallArgs();
1179                        final Uri originUri = Uri.fromFile(args.origin.resolvedFile);
1180
1181                        int ret;
1182                        if (state.isInstallAllowed()) {
1183                            ret = PackageManager.INSTALL_FAILED_INTERNAL_ERROR;
1184                            broadcastPackageVerified(verificationId, originUri,
1185                                    response.code, state.getInstallArgs().getUser());
1186                            try {
1187                                ret = args.copyApk(mContainerService, true);
1188                            } catch (RemoteException e) {
1189                                Slog.e(TAG, "Could not contact the ContainerService");
1190                            }
1191                        } else {
1192                            ret = PackageManager.INSTALL_FAILED_VERIFICATION_FAILURE;
1193                        }
1194
1195                        processPendingInstall(args, ret);
1196
1197                        mHandler.sendEmptyMessage(MCS_UNBIND);
1198                    }
1199
1200                    break;
1201                }
1202            }
1203        }
1204    }
1205
1206    Bundle extrasForInstallResult(PackageInstalledInfo res) {
1207        Bundle extras = null;
1208        switch (res.returnCode) {
1209            case PackageManager.INSTALL_FAILED_DUPLICATE_PERMISSION: {
1210                extras = new Bundle();
1211                extras.putString(PackageManager.EXTRA_FAILURE_EXISTING_PERMISSION,
1212                        res.origPermission);
1213                extras.putString(PackageManager.EXTRA_FAILURE_EXISTING_PACKAGE,
1214                        res.origPackage);
1215                break;
1216            }
1217        }
1218        return extras;
1219    }
1220
1221    void scheduleWriteSettingsLocked() {
1222        if (!mHandler.hasMessages(WRITE_SETTINGS)) {
1223            mHandler.sendEmptyMessageDelayed(WRITE_SETTINGS, WRITE_SETTINGS_DELAY);
1224        }
1225    }
1226
1227    void scheduleWritePackageRestrictionsLocked(int userId) {
1228        if (!sUserManager.exists(userId)) return;
1229        mDirtyUsers.add(userId);
1230        if (!mHandler.hasMessages(WRITE_PACKAGE_RESTRICTIONS)) {
1231            mHandler.sendEmptyMessageDelayed(WRITE_PACKAGE_RESTRICTIONS, WRITE_SETTINGS_DELAY);
1232        }
1233    }
1234
1235    public static final PackageManagerService main(Context context, Installer installer,
1236            boolean factoryTest, boolean onlyCore) {
1237        PackageManagerService m = new PackageManagerService(context, installer,
1238                factoryTest, onlyCore);
1239        ServiceManager.addService("package", m);
1240        return m;
1241    }
1242
1243    static String[] splitString(String str, char sep) {
1244        int count = 1;
1245        int i = 0;
1246        while ((i=str.indexOf(sep, i)) >= 0) {
1247            count++;
1248            i++;
1249        }
1250
1251        String[] res = new String[count];
1252        i=0;
1253        count = 0;
1254        int lastI=0;
1255        while ((i=str.indexOf(sep, i)) >= 0) {
1256            res[count] = str.substring(lastI, i);
1257            count++;
1258            i++;
1259            lastI = i;
1260        }
1261        res[count] = str.substring(lastI, str.length());
1262        return res;
1263    }
1264
1265    private static void getDefaultDisplayMetrics(Context context, DisplayMetrics metrics) {
1266        DisplayManager displayManager = (DisplayManager) context.getSystemService(
1267                Context.DISPLAY_SERVICE);
1268        displayManager.getDisplay(Display.DEFAULT_DISPLAY).getMetrics(metrics);
1269    }
1270
1271    public PackageManagerService(Context context, Installer installer,
1272            boolean factoryTest, boolean onlyCore) {
1273        EventLog.writeEvent(EventLogTags.BOOT_PROGRESS_PMS_START,
1274                SystemClock.uptimeMillis());
1275
1276        if (mSdkVersion <= 0) {
1277            Slog.w(TAG, "**** ro.build.version.sdk not set!");
1278        }
1279
1280        mContext = context;
1281        mFactoryTest = factoryTest;
1282        mOnlyCore = onlyCore;
1283        mLazyDexOpt = "eng".equals(SystemProperties.get("ro.build.type"));
1284        mMetrics = new DisplayMetrics();
1285        mSettings = new Settings(context);
1286        mSettings.addSharedUserLPw("android.uid.system", Process.SYSTEM_UID,
1287                ApplicationInfo.FLAG_SYSTEM|ApplicationInfo.FLAG_PRIVILEGED);
1288        mSettings.addSharedUserLPw("android.uid.phone", RADIO_UID,
1289                ApplicationInfo.FLAG_SYSTEM|ApplicationInfo.FLAG_PRIVILEGED);
1290        mSettings.addSharedUserLPw("android.uid.log", LOG_UID,
1291                ApplicationInfo.FLAG_SYSTEM|ApplicationInfo.FLAG_PRIVILEGED);
1292        mSettings.addSharedUserLPw("android.uid.nfc", NFC_UID,
1293                ApplicationInfo.FLAG_SYSTEM|ApplicationInfo.FLAG_PRIVILEGED);
1294        mSettings.addSharedUserLPw("android.uid.bluetooth", BLUETOOTH_UID,
1295                ApplicationInfo.FLAG_SYSTEM|ApplicationInfo.FLAG_PRIVILEGED);
1296        mSettings.addSharedUserLPw("android.uid.shell", SHELL_UID,
1297                ApplicationInfo.FLAG_SYSTEM|ApplicationInfo.FLAG_PRIVILEGED);
1298
1299        // TODO: add a property to control this?
1300        long dexOptLRUThresholdInMinutes;
1301        if (mLazyDexOpt) {
1302            dexOptLRUThresholdInMinutes = 30; // only last 30 minutes of apps for eng builds.
1303        } else {
1304            dexOptLRUThresholdInMinutes = 7 * 24 * 60; // apps used in the 7 days for users.
1305        }
1306        mDexOptLRUThresholdInMills = dexOptLRUThresholdInMinutes * 60 * 1000;
1307
1308        String separateProcesses = SystemProperties.get("debug.separate_processes");
1309        if (separateProcesses != null && separateProcesses.length() > 0) {
1310            if ("*".equals(separateProcesses)) {
1311                mDefParseFlags = PackageParser.PARSE_IGNORE_PROCESSES;
1312                mSeparateProcesses = null;
1313                Slog.w(TAG, "Running with debug.separate_processes: * (ALL)");
1314            } else {
1315                mDefParseFlags = 0;
1316                mSeparateProcesses = separateProcesses.split(",");
1317                Slog.w(TAG, "Running with debug.separate_processes: "
1318                        + separateProcesses);
1319            }
1320        } else {
1321            mDefParseFlags = 0;
1322            mSeparateProcesses = null;
1323        }
1324
1325        mInstaller = installer;
1326
1327        getDefaultDisplayMetrics(context, mMetrics);
1328
1329        SystemConfig systemConfig = SystemConfig.getInstance();
1330        mGlobalGids = systemConfig.getGlobalGids();
1331        mSystemPermissions = systemConfig.getSystemPermissions();
1332        mAvailableFeatures = systemConfig.getAvailableFeatures();
1333
1334        synchronized (mInstallLock) {
1335        // writer
1336        synchronized (mPackages) {
1337            mHandlerThread = new ServiceThread(TAG,
1338                    Process.THREAD_PRIORITY_BACKGROUND, true /*allowIo*/);
1339            mHandlerThread.start();
1340            mHandler = new PackageHandler(mHandlerThread.getLooper());
1341            Watchdog.getInstance().addThread(mHandler, WATCHDOG_TIMEOUT);
1342
1343            File dataDir = Environment.getDataDirectory();
1344            mAppDataDir = new File(dataDir, "data");
1345            mAppInstallDir = new File(dataDir, "app");
1346            mAppLib32InstallDir = new File(dataDir, "app-lib");
1347            mAsecInternalPath = new File(dataDir, "app-asec").getPath();
1348            mUserAppDataDir = new File(dataDir, "user");
1349            mDrmAppPrivateInstallDir = new File(dataDir, "app-private");
1350
1351            sUserManager = new UserManagerService(context, this,
1352                    mInstallLock, mPackages);
1353
1354            // Propagate permission configuration in to package manager.
1355            ArrayMap<String, SystemConfig.PermissionEntry> permConfig
1356                    = systemConfig.getPermissions();
1357            for (int i=0; i<permConfig.size(); i++) {
1358                SystemConfig.PermissionEntry perm = permConfig.valueAt(i);
1359                BasePermission bp = mSettings.mPermissions.get(perm.name);
1360                if (bp == null) {
1361                    bp = new BasePermission(perm.name, "android", BasePermission.TYPE_BUILTIN);
1362                    mSettings.mPermissions.put(perm.name, bp);
1363                }
1364                if (perm.gids != null) {
1365                    bp.gids = appendInts(bp.gids, perm.gids);
1366                }
1367            }
1368
1369            ArrayMap<String, String> libConfig = systemConfig.getSharedLibraries();
1370            for (int i=0; i<libConfig.size(); i++) {
1371                mSharedLibraries.put(libConfig.keyAt(i),
1372                        new SharedLibraryEntry(libConfig.valueAt(i), null));
1373            }
1374
1375            mFoundPolicyFile = SELinuxMMAC.readInstallPolicy();
1376
1377            mRestoredSettings = mSettings.readLPw(this, sUserManager.getUsers(false),
1378                    mSdkVersion, mOnlyCore);
1379
1380            String customResolverActivity = Resources.getSystem().getString(
1381                    R.string.config_customResolverActivity);
1382            if (TextUtils.isEmpty(customResolverActivity)) {
1383                customResolverActivity = null;
1384            } else {
1385                mCustomResolverComponentName = ComponentName.unflattenFromString(
1386                        customResolverActivity);
1387            }
1388
1389            long startTime = SystemClock.uptimeMillis();
1390
1391            EventLog.writeEvent(EventLogTags.BOOT_PROGRESS_PMS_SYSTEM_SCAN_START,
1392                    startTime);
1393
1394            // Set flag to monitor and not change apk file paths when
1395            // scanning install directories.
1396            final int scanFlags = SCAN_NO_PATHS | SCAN_DEFER_DEX | SCAN_BOOTING;
1397
1398            final ArraySet<String> alreadyDexOpted = new ArraySet<String>();
1399
1400            /**
1401             * Add everything in the in the boot class path to the
1402             * list of process files because dexopt will have been run
1403             * if necessary during zygote startup.
1404             */
1405            final String bootClassPath = System.getenv("BOOTCLASSPATH");
1406            final String systemServerClassPath = System.getenv("SYSTEMSERVERCLASSPATH");
1407
1408            if (bootClassPath != null) {
1409                String[] bootClassPathElements = splitString(bootClassPath, ':');
1410                for (String element : bootClassPathElements) {
1411                    alreadyDexOpted.add(element);
1412                }
1413            } else {
1414                Slog.w(TAG, "No BOOTCLASSPATH found!");
1415            }
1416
1417            if (systemServerClassPath != null) {
1418                String[] systemServerClassPathElements = splitString(systemServerClassPath, ':');
1419                for (String element : systemServerClassPathElements) {
1420                    alreadyDexOpted.add(element);
1421                }
1422            } else {
1423                Slog.w(TAG, "No SYSTEMSERVERCLASSPATH found!");
1424            }
1425
1426            boolean didDexOptLibraryOrTool = false;
1427
1428            final List<String> allInstructionSets = getAllInstructionSets();
1429            final String[] dexCodeInstructionSets =
1430                getDexCodeInstructionSets(allInstructionSets.toArray(new String[allInstructionSets.size()]));
1431
1432            /**
1433             * Ensure all external libraries have had dexopt run on them.
1434             */
1435            if (mSharedLibraries.size() > 0) {
1436                // NOTE: For now, we're compiling these system "shared libraries"
1437                // (and framework jars) into all available architectures. It's possible
1438                // to compile them only when we come across an app that uses them (there's
1439                // already logic for that in scanPackageLI) but that adds some complexity.
1440                for (String dexCodeInstructionSet : dexCodeInstructionSets) {
1441                    for (SharedLibraryEntry libEntry : mSharedLibraries.values()) {
1442                        final String lib = libEntry.path;
1443                        if (lib == null) {
1444                            continue;
1445                        }
1446
1447                        try {
1448                            byte dexoptRequired = DexFile.isDexOptNeededInternal(lib, null,
1449                                                                                 dexCodeInstructionSet,
1450                                                                                 false);
1451                            if (dexoptRequired != DexFile.UP_TO_DATE) {
1452                                alreadyDexOpted.add(lib);
1453
1454                                // The list of "shared libraries" we have at this point is
1455                                if (dexoptRequired == DexFile.DEXOPT_NEEDED) {
1456                                    mInstaller.dexopt(lib, Process.SYSTEM_UID, true, dexCodeInstructionSet);
1457                                } else {
1458                                    mInstaller.patchoat(lib, Process.SYSTEM_UID, true, dexCodeInstructionSet);
1459                                }
1460                                didDexOptLibraryOrTool = true;
1461                            }
1462                        } catch (FileNotFoundException e) {
1463                            Slog.w(TAG, "Library not found: " + lib);
1464                        } catch (IOException e) {
1465                            Slog.w(TAG, "Cannot dexopt " + lib + "; is it an APK or JAR? "
1466                                    + e.getMessage());
1467                        }
1468                    }
1469                }
1470            }
1471
1472            File frameworkDir = new File(Environment.getRootDirectory(), "framework");
1473
1474            // Gross hack for now: we know this file doesn't contain any
1475            // code, so don't dexopt it to avoid the resulting log spew.
1476            alreadyDexOpted.add(frameworkDir.getPath() + "/framework-res.apk");
1477
1478            // Gross hack for now: we know this file is only part of
1479            // the boot class path for art, so don't dexopt it to
1480            // avoid the resulting log spew.
1481            alreadyDexOpted.add(frameworkDir.getPath() + "/core-libart.jar");
1482
1483            /**
1484             * And there are a number of commands implemented in Java, which
1485             * we currently need to do the dexopt on so that they can be
1486             * run from a non-root shell.
1487             */
1488            String[] frameworkFiles = frameworkDir.list();
1489            if (frameworkFiles != null) {
1490                // TODO: We could compile these only for the most preferred ABI. We should
1491                // first double check that the dex files for these commands are not referenced
1492                // by other system apps.
1493                for (String dexCodeInstructionSet : dexCodeInstructionSets) {
1494                    for (int i=0; i<frameworkFiles.length; i++) {
1495                        File libPath = new File(frameworkDir, frameworkFiles[i]);
1496                        String path = libPath.getPath();
1497                        // Skip the file if we already did it.
1498                        if (alreadyDexOpted.contains(path)) {
1499                            continue;
1500                        }
1501                        // Skip the file if it is not a type we want to dexopt.
1502                        if (!path.endsWith(".apk") && !path.endsWith(".jar")) {
1503                            continue;
1504                        }
1505                        try {
1506                            byte dexoptRequired = DexFile.isDexOptNeededInternal(path, null,
1507                                                                                 dexCodeInstructionSet,
1508                                                                                 false);
1509                            if (dexoptRequired == DexFile.DEXOPT_NEEDED) {
1510                                mInstaller.dexopt(path, Process.SYSTEM_UID, true, dexCodeInstructionSet);
1511                                didDexOptLibraryOrTool = true;
1512                            } else if (dexoptRequired == DexFile.PATCHOAT_NEEDED) {
1513                                mInstaller.patchoat(path, Process.SYSTEM_UID, true, dexCodeInstructionSet);
1514                                didDexOptLibraryOrTool = true;
1515                            }
1516                        } catch (FileNotFoundException e) {
1517                            Slog.w(TAG, "Jar not found: " + path);
1518                        } catch (IOException e) {
1519                            Slog.w(TAG, "Exception reading jar: " + path, e);
1520                        }
1521                    }
1522                }
1523            }
1524
1525            // Collect vendor overlay packages.
1526            // (Do this before scanning any apps.)
1527            // For security and version matching reason, only consider
1528            // overlay packages if they reside in VENDOR_OVERLAY_DIR.
1529            File vendorOverlayDir = new File(VENDOR_OVERLAY_DIR);
1530            scanDirLI(vendorOverlayDir, PackageParser.PARSE_IS_SYSTEM
1531                    | PackageParser.PARSE_IS_SYSTEM_DIR, scanFlags | SCAN_TRUSTED_OVERLAY, 0);
1532
1533            // Find base frameworks (resource packages without code).
1534            scanDirLI(frameworkDir, PackageParser.PARSE_IS_SYSTEM
1535                    | PackageParser.PARSE_IS_SYSTEM_DIR
1536                    | PackageParser.PARSE_IS_PRIVILEGED,
1537                    scanFlags | SCAN_NO_DEX, 0);
1538
1539            // Collected privileged system packages.
1540            final File privilegedAppDir = new File(Environment.getRootDirectory(), "priv-app");
1541            scanDirLI(privilegedAppDir, PackageParser.PARSE_IS_SYSTEM
1542                    | PackageParser.PARSE_IS_SYSTEM_DIR
1543                    | PackageParser.PARSE_IS_PRIVILEGED, scanFlags, 0);
1544
1545            // Collect ordinary system packages.
1546            final File systemAppDir = new File(Environment.getRootDirectory(), "app");
1547            scanDirLI(systemAppDir, PackageParser.PARSE_IS_SYSTEM
1548                    | PackageParser.PARSE_IS_SYSTEM_DIR, scanFlags, 0);
1549
1550            // Collect all vendor packages.
1551            File vendorAppDir = new File("/vendor/app");
1552            try {
1553                vendorAppDir = vendorAppDir.getCanonicalFile();
1554            } catch (IOException e) {
1555                // failed to look up canonical path, continue with original one
1556            }
1557            scanDirLI(vendorAppDir, PackageParser.PARSE_IS_SYSTEM
1558                    | PackageParser.PARSE_IS_SYSTEM_DIR, scanFlags, 0);
1559
1560            // Collect all OEM packages.
1561            final File oemAppDir = new File(Environment.getOemDirectory(), "app");
1562            scanDirLI(oemAppDir, PackageParser.PARSE_IS_SYSTEM
1563                    | PackageParser.PARSE_IS_SYSTEM_DIR, scanFlags, 0);
1564
1565            if (DEBUG_UPGRADE) Log.v(TAG, "Running installd update commands");
1566            mInstaller.moveFiles();
1567
1568            // Prune any system packages that no longer exist.
1569            final List<String> possiblyDeletedUpdatedSystemApps = new ArrayList<String>();
1570            final ArrayMap<String, File> expectingBetter = new ArrayMap<>();
1571            if (!mOnlyCore) {
1572                Iterator<PackageSetting> psit = mSettings.mPackages.values().iterator();
1573                while (psit.hasNext()) {
1574                    PackageSetting ps = psit.next();
1575
1576                    /*
1577                     * If this is not a system app, it can't be a
1578                     * disable system app.
1579                     */
1580                    if ((ps.pkgFlags & ApplicationInfo.FLAG_SYSTEM) == 0) {
1581                        continue;
1582                    }
1583
1584                    /*
1585                     * If the package is scanned, it's not erased.
1586                     */
1587                    final PackageParser.Package scannedPkg = mPackages.get(ps.name);
1588                    if (scannedPkg != null) {
1589                        /*
1590                         * If the system app is both scanned and in the
1591                         * disabled packages list, then it must have been
1592                         * added via OTA. Remove it from the currently
1593                         * scanned package so the previously user-installed
1594                         * application can be scanned.
1595                         */
1596                        if (mSettings.isDisabledSystemPackageLPr(ps.name)) {
1597                            logCriticalInfo(Log.WARN, "Expecting better updated system app for "
1598                                    + ps.name + "; removing system app.  Last known codePath="
1599                                    + ps.codePathString + ", installStatus=" + ps.installStatus
1600                                    + ", versionCode=" + ps.versionCode + "; scanned versionCode="
1601                                    + scannedPkg.mVersionCode);
1602                            removePackageLI(ps, true);
1603                            expectingBetter.put(ps.name, ps.codePath);
1604                        }
1605
1606                        continue;
1607                    }
1608
1609                    if (!mSettings.isDisabledSystemPackageLPr(ps.name)) {
1610                        psit.remove();
1611                        logCriticalInfo(Log.WARN, "System package " + ps.name
1612                                + " no longer exists; wiping its data");
1613                        removeDataDirsLI(ps.name);
1614                    } else {
1615                        final PackageSetting disabledPs = mSettings.getDisabledSystemPkgLPr(ps.name);
1616                        if (disabledPs.codePath == null || !disabledPs.codePath.exists()) {
1617                            possiblyDeletedUpdatedSystemApps.add(ps.name);
1618                        }
1619                    }
1620                }
1621            }
1622
1623            //look for any incomplete package installations
1624            ArrayList<PackageSetting> deletePkgsList = mSettings.getListOfIncompleteInstallPackagesLPr();
1625            //clean up list
1626            for(int i = 0; i < deletePkgsList.size(); i++) {
1627                //clean up here
1628                cleanupInstallFailedPackage(deletePkgsList.get(i));
1629            }
1630            //delete tmp files
1631            deleteTempPackageFiles();
1632
1633            // Remove any shared userIDs that have no associated packages
1634            mSettings.pruneSharedUsersLPw();
1635
1636            if (!mOnlyCore) {
1637                EventLog.writeEvent(EventLogTags.BOOT_PROGRESS_PMS_DATA_SCAN_START,
1638                        SystemClock.uptimeMillis());
1639                scanDirLI(mAppInstallDir, 0, scanFlags, 0);
1640
1641                scanDirLI(mDrmAppPrivateInstallDir, PackageParser.PARSE_FORWARD_LOCK,
1642                        scanFlags, 0);
1643
1644                /**
1645                 * Remove disable package settings for any updated system
1646                 * apps that were removed via an OTA. If they're not a
1647                 * previously-updated app, remove them completely.
1648                 * Otherwise, just revoke their system-level permissions.
1649                 */
1650                for (String deletedAppName : possiblyDeletedUpdatedSystemApps) {
1651                    PackageParser.Package deletedPkg = mPackages.get(deletedAppName);
1652                    mSettings.removeDisabledSystemPackageLPw(deletedAppName);
1653
1654                    String msg;
1655                    if (deletedPkg == null) {
1656                        msg = "Updated system package " + deletedAppName
1657                                + " no longer exists; wiping its data";
1658                        removeDataDirsLI(deletedAppName);
1659                    } else {
1660                        msg = "Updated system app + " + deletedAppName
1661                                + " no longer present; removing system privileges for "
1662                                + deletedAppName;
1663
1664                        deletedPkg.applicationInfo.flags &= ~ApplicationInfo.FLAG_SYSTEM;
1665
1666                        PackageSetting deletedPs = mSettings.mPackages.get(deletedAppName);
1667                        deletedPs.pkgFlags &= ~ApplicationInfo.FLAG_SYSTEM;
1668                    }
1669                    logCriticalInfo(Log.WARN, msg);
1670                }
1671
1672                /**
1673                 * Make sure all system apps that we expected to appear on
1674                 * the userdata partition actually showed up. If they never
1675                 * appeared, crawl back and revive the system version.
1676                 */
1677                for (int i = 0; i < expectingBetter.size(); i++) {
1678                    final String packageName = expectingBetter.keyAt(i);
1679                    if (!mPackages.containsKey(packageName)) {
1680                        final File scanFile = expectingBetter.valueAt(i);
1681
1682                        logCriticalInfo(Log.WARN, "Expected better " + packageName
1683                                + " but never showed up; reverting to system");
1684
1685                        final int reparseFlags;
1686                        if (FileUtils.contains(privilegedAppDir, scanFile)) {
1687                            reparseFlags = PackageParser.PARSE_IS_SYSTEM
1688                                    | PackageParser.PARSE_IS_SYSTEM_DIR
1689                                    | PackageParser.PARSE_IS_PRIVILEGED;
1690                        } else if (FileUtils.contains(systemAppDir, scanFile)) {
1691                            reparseFlags = PackageParser.PARSE_IS_SYSTEM
1692                                    | PackageParser.PARSE_IS_SYSTEM_DIR;
1693                        } else if (FileUtils.contains(vendorAppDir, scanFile)) {
1694                            reparseFlags = PackageParser.PARSE_IS_SYSTEM
1695                                    | PackageParser.PARSE_IS_SYSTEM_DIR;
1696                        } else if (FileUtils.contains(oemAppDir, scanFile)) {
1697                            reparseFlags = PackageParser.PARSE_IS_SYSTEM
1698                                    | PackageParser.PARSE_IS_SYSTEM_DIR;
1699                        } else {
1700                            Slog.e(TAG, "Ignoring unexpected fallback path " + scanFile);
1701                            continue;
1702                        }
1703
1704                        mSettings.enableSystemPackageLPw(packageName);
1705
1706                        try {
1707                            scanPackageLI(scanFile, reparseFlags, scanFlags, 0, null);
1708                        } catch (PackageManagerException e) {
1709                            Slog.e(TAG, "Failed to parse original system package: "
1710                                    + e.getMessage());
1711                        }
1712                    }
1713                }
1714            }
1715
1716            // Now that we know all of the shared libraries, update all clients to have
1717            // the correct library paths.
1718            updateAllSharedLibrariesLPw();
1719
1720            for (SharedUserSetting setting : mSettings.getAllSharedUsersLPw()) {
1721                // NOTE: We ignore potential failures here during a system scan (like
1722                // the rest of the commands above) because there's precious little we
1723                // can do about it. A settings error is reported, though.
1724                adjustCpuAbisForSharedUserLPw(setting.packages, null /* scanned package */,
1725                        false /* force dexopt */, false /* defer dexopt */);
1726            }
1727
1728            // Now that we know all the packages we are keeping,
1729            // read and update their last usage times.
1730            mPackageUsage.readLP();
1731
1732            EventLog.writeEvent(EventLogTags.BOOT_PROGRESS_PMS_SCAN_END,
1733                    SystemClock.uptimeMillis());
1734            Slog.i(TAG, "Time to scan packages: "
1735                    + ((SystemClock.uptimeMillis()-startTime)/1000f)
1736                    + " seconds");
1737
1738            // If the platform SDK has changed since the last time we booted,
1739            // we need to re-grant app permission to catch any new ones that
1740            // appear.  This is really a hack, and means that apps can in some
1741            // cases get permissions that the user didn't initially explicitly
1742            // allow...  it would be nice to have some better way to handle
1743            // this situation.
1744            final boolean regrantPermissions = mSettings.mInternalSdkPlatform
1745                    != mSdkVersion;
1746            if (regrantPermissions) Slog.i(TAG, "Platform changed from "
1747                    + mSettings.mInternalSdkPlatform + " to " + mSdkVersion
1748                    + "; regranting permissions for internal storage");
1749            mSettings.mInternalSdkPlatform = mSdkVersion;
1750
1751            updatePermissionsLPw(null, null, UPDATE_PERMISSIONS_ALL
1752                    | (regrantPermissions
1753                            ? (UPDATE_PERMISSIONS_REPLACE_PKG|UPDATE_PERMISSIONS_REPLACE_ALL)
1754                            : 0));
1755
1756            // If this is the first boot, and it is a normal boot, then
1757            // we need to initialize the default preferred apps.
1758            if (!mRestoredSettings && !onlyCore) {
1759                mSettings.readDefaultPreferredAppsLPw(this, 0);
1760            }
1761
1762            // If this is first boot after an OTA, and a normal boot, then
1763            // we need to clear code cache directories.
1764            mIsUpgrade = !Build.FINGERPRINT.equals(mSettings.mFingerprint);
1765            if (mIsUpgrade && !onlyCore) {
1766                Slog.i(TAG, "Build fingerprint changed; clearing code caches");
1767                for (String pkgName : mSettings.mPackages.keySet()) {
1768                    deleteCodeCacheDirsLI(pkgName);
1769                }
1770                mSettings.mFingerprint = Build.FINGERPRINT;
1771            }
1772
1773            // All the changes are done during package scanning.
1774            mSettings.updateInternalDatabaseVersion();
1775
1776            // can downgrade to reader
1777            mSettings.writeLPr();
1778
1779            EventLog.writeEvent(EventLogTags.BOOT_PROGRESS_PMS_READY,
1780                    SystemClock.uptimeMillis());
1781
1782
1783            mRequiredVerifierPackage = getRequiredVerifierLPr();
1784        } // synchronized (mPackages)
1785        } // synchronized (mInstallLock)
1786
1787        mInstallerService = new PackageInstallerService(context, this, mAppInstallDir);
1788
1789        // Now after opening every single application zip, make sure they
1790        // are all flushed.  Not really needed, but keeps things nice and
1791        // tidy.
1792        Runtime.getRuntime().gc();
1793    }
1794
1795    @Override
1796    public boolean isFirstBoot() {
1797        return !mRestoredSettings;
1798    }
1799
1800    @Override
1801    public boolean isOnlyCoreApps() {
1802        return mOnlyCore;
1803    }
1804
1805    @Override
1806    public boolean isUpgrade() {
1807        return mIsUpgrade;
1808    }
1809
1810    private String getRequiredVerifierLPr() {
1811        final Intent verification = new Intent(Intent.ACTION_PACKAGE_NEEDS_VERIFICATION);
1812        final List<ResolveInfo> receivers = queryIntentReceivers(verification, PACKAGE_MIME_TYPE,
1813                PackageManager.GET_DISABLED_COMPONENTS, 0 /* TODO: Which userId? */);
1814
1815        String requiredVerifier = null;
1816
1817        final int N = receivers.size();
1818        for (int i = 0; i < N; i++) {
1819            final ResolveInfo info = receivers.get(i);
1820
1821            if (info.activityInfo == null) {
1822                continue;
1823            }
1824
1825            final String packageName = info.activityInfo.packageName;
1826
1827            final PackageSetting ps = mSettings.mPackages.get(packageName);
1828            if (ps == null) {
1829                continue;
1830            }
1831
1832            final GrantedPermissions gp = ps.sharedUser != null ? ps.sharedUser : ps;
1833            if (!gp.grantedPermissions
1834                    .contains(android.Manifest.permission.PACKAGE_VERIFICATION_AGENT)) {
1835                continue;
1836            }
1837
1838            if (requiredVerifier != null) {
1839                throw new RuntimeException("There can be only one required verifier");
1840            }
1841
1842            requiredVerifier = packageName;
1843        }
1844
1845        return requiredVerifier;
1846    }
1847
1848    @Override
1849    public boolean onTransact(int code, Parcel data, Parcel reply, int flags)
1850            throws RemoteException {
1851        try {
1852            return super.onTransact(code, data, reply, flags);
1853        } catch (RuntimeException e) {
1854            if (!(e instanceof SecurityException) && !(e instanceof IllegalArgumentException)) {
1855                Slog.wtf(TAG, "Package Manager Crash", e);
1856            }
1857            throw e;
1858        }
1859    }
1860
1861    void cleanupInstallFailedPackage(PackageSetting ps) {
1862        logCriticalInfo(Log.WARN, "Cleaning up incompletely installed app: " + ps.name);
1863
1864        removeDataDirsLI(ps.name);
1865        if (ps.codePath != null) {
1866            if (ps.codePath.isDirectory()) {
1867                FileUtils.deleteContents(ps.codePath);
1868            }
1869            ps.codePath.delete();
1870        }
1871        if (ps.resourcePath != null && !ps.resourcePath.equals(ps.codePath)) {
1872            if (ps.resourcePath.isDirectory()) {
1873                FileUtils.deleteContents(ps.resourcePath);
1874            }
1875            ps.resourcePath.delete();
1876        }
1877        mSettings.removePackageLPw(ps.name);
1878    }
1879
1880    static int[] appendInts(int[] cur, int[] add) {
1881        if (add == null) return cur;
1882        if (cur == null) return add;
1883        final int N = add.length;
1884        for (int i=0; i<N; i++) {
1885            cur = appendInt(cur, add[i]);
1886        }
1887        return cur;
1888    }
1889
1890    static int[] removeInts(int[] cur, int[] rem) {
1891        if (rem == null) return cur;
1892        if (cur == null) return cur;
1893        final int N = rem.length;
1894        for (int i=0; i<N; i++) {
1895            cur = removeInt(cur, rem[i]);
1896        }
1897        return cur;
1898    }
1899
1900    PackageInfo generatePackageInfo(PackageParser.Package p, int flags, int userId) {
1901        if (!sUserManager.exists(userId)) return null;
1902        final PackageSetting ps = (PackageSetting) p.mExtras;
1903        if (ps == null) {
1904            return null;
1905        }
1906        final GrantedPermissions gp = ps.sharedUser != null ? ps.sharedUser : ps;
1907        final PackageUserState state = ps.readUserState(userId);
1908        return PackageParser.generatePackageInfo(p, gp.gids, flags,
1909                ps.firstInstallTime, ps.lastUpdateTime, gp.grantedPermissions,
1910                state, userId);
1911    }
1912
1913    @Override
1914    public boolean isPackageAvailable(String packageName, int userId) {
1915        if (!sUserManager.exists(userId)) return false;
1916        enforceCrossUserPermission(Binder.getCallingUid(), userId, false, false, "is package available");
1917        synchronized (mPackages) {
1918            PackageParser.Package p = mPackages.get(packageName);
1919            if (p != null) {
1920                final PackageSetting ps = (PackageSetting) p.mExtras;
1921                if (ps != null) {
1922                    final PackageUserState state = ps.readUserState(userId);
1923                    if (state != null) {
1924                        return PackageParser.isAvailable(state);
1925                    }
1926                }
1927            }
1928        }
1929        return false;
1930    }
1931
1932    @Override
1933    public PackageInfo getPackageInfo(String packageName, int flags, int userId) {
1934        if (!sUserManager.exists(userId)) return null;
1935        enforceCrossUserPermission(Binder.getCallingUid(), userId, false, false, "get package info");
1936        // reader
1937        synchronized (mPackages) {
1938            PackageParser.Package p = mPackages.get(packageName);
1939            if (DEBUG_PACKAGE_INFO)
1940                Log.v(TAG, "getPackageInfo " + packageName + ": " + p);
1941            if (p != null) {
1942                return generatePackageInfo(p, flags, userId);
1943            }
1944            if((flags & PackageManager.GET_UNINSTALLED_PACKAGES) != 0) {
1945                return generatePackageInfoFromSettingsLPw(packageName, flags, userId);
1946            }
1947        }
1948        return null;
1949    }
1950
1951    @Override
1952    public String[] currentToCanonicalPackageNames(String[] names) {
1953        String[] out = new String[names.length];
1954        // reader
1955        synchronized (mPackages) {
1956            for (int i=names.length-1; i>=0; i--) {
1957                PackageSetting ps = mSettings.mPackages.get(names[i]);
1958                out[i] = ps != null && ps.realName != null ? ps.realName : names[i];
1959            }
1960        }
1961        return out;
1962    }
1963
1964    @Override
1965    public String[] canonicalToCurrentPackageNames(String[] names) {
1966        String[] out = new String[names.length];
1967        // reader
1968        synchronized (mPackages) {
1969            for (int i=names.length-1; i>=0; i--) {
1970                String cur = mSettings.mRenamedPackages.get(names[i]);
1971                out[i] = cur != null ? cur : names[i];
1972            }
1973        }
1974        return out;
1975    }
1976
1977    @Override
1978    public int getPackageUid(String packageName, int userId) {
1979        if (!sUserManager.exists(userId)) return -1;
1980        enforceCrossUserPermission(Binder.getCallingUid(), userId, false, false, "get package uid");
1981        // reader
1982        synchronized (mPackages) {
1983            PackageParser.Package p = mPackages.get(packageName);
1984            if(p != null) {
1985                return UserHandle.getUid(userId, p.applicationInfo.uid);
1986            }
1987            PackageSetting ps = mSettings.mPackages.get(packageName);
1988            if((ps == null) || (ps.pkg == null) || (ps.pkg.applicationInfo == null)) {
1989                return -1;
1990            }
1991            p = ps.pkg;
1992            return p != null ? UserHandle.getUid(userId, p.applicationInfo.uid) : -1;
1993        }
1994    }
1995
1996    @Override
1997    public int[] getPackageGids(String packageName) {
1998        // reader
1999        synchronized (mPackages) {
2000            PackageParser.Package p = mPackages.get(packageName);
2001            if (DEBUG_PACKAGE_INFO)
2002                Log.v(TAG, "getPackageGids" + packageName + ": " + p);
2003            if (p != null) {
2004                final PackageSetting ps = (PackageSetting)p.mExtras;
2005                return ps.getGids();
2006            }
2007        }
2008        // stupid thing to indicate an error.
2009        return new int[0];
2010    }
2011
2012    static final PermissionInfo generatePermissionInfo(
2013            BasePermission bp, int flags) {
2014        if (bp.perm != null) {
2015            return PackageParser.generatePermissionInfo(bp.perm, flags);
2016        }
2017        PermissionInfo pi = new PermissionInfo();
2018        pi.name = bp.name;
2019        pi.packageName = bp.sourcePackage;
2020        pi.nonLocalizedLabel = bp.name;
2021        pi.protectionLevel = bp.protectionLevel;
2022        return pi;
2023    }
2024
2025    @Override
2026    public PermissionInfo getPermissionInfo(String name, int flags) {
2027        // reader
2028        synchronized (mPackages) {
2029            final BasePermission p = mSettings.mPermissions.get(name);
2030            if (p != null) {
2031                return generatePermissionInfo(p, flags);
2032            }
2033            return null;
2034        }
2035    }
2036
2037    @Override
2038    public List<PermissionInfo> queryPermissionsByGroup(String group, int flags) {
2039        // reader
2040        synchronized (mPackages) {
2041            ArrayList<PermissionInfo> out = new ArrayList<PermissionInfo>(10);
2042            for (BasePermission p : mSettings.mPermissions.values()) {
2043                if (group == null) {
2044                    if (p.perm == null || p.perm.info.group == null) {
2045                        out.add(generatePermissionInfo(p, flags));
2046                    }
2047                } else {
2048                    if (p.perm != null && group.equals(p.perm.info.group)) {
2049                        out.add(PackageParser.generatePermissionInfo(p.perm, flags));
2050                    }
2051                }
2052            }
2053
2054            if (out.size() > 0) {
2055                return out;
2056            }
2057            return mPermissionGroups.containsKey(group) ? out : null;
2058        }
2059    }
2060
2061    @Override
2062    public PermissionGroupInfo getPermissionGroupInfo(String name, int flags) {
2063        // reader
2064        synchronized (mPackages) {
2065            return PackageParser.generatePermissionGroupInfo(
2066                    mPermissionGroups.get(name), flags);
2067        }
2068    }
2069
2070    @Override
2071    public List<PermissionGroupInfo> getAllPermissionGroups(int flags) {
2072        // reader
2073        synchronized (mPackages) {
2074            final int N = mPermissionGroups.size();
2075            ArrayList<PermissionGroupInfo> out
2076                    = new ArrayList<PermissionGroupInfo>(N);
2077            for (PackageParser.PermissionGroup pg : mPermissionGroups.values()) {
2078                out.add(PackageParser.generatePermissionGroupInfo(pg, flags));
2079            }
2080            return out;
2081        }
2082    }
2083
2084    private ApplicationInfo generateApplicationInfoFromSettingsLPw(String packageName, int flags,
2085            int userId) {
2086        if (!sUserManager.exists(userId)) return null;
2087        PackageSetting ps = mSettings.mPackages.get(packageName);
2088        if (ps != null) {
2089            if (ps.pkg == null) {
2090                PackageInfo pInfo = generatePackageInfoFromSettingsLPw(packageName,
2091                        flags, userId);
2092                if (pInfo != null) {
2093                    return pInfo.applicationInfo;
2094                }
2095                return null;
2096            }
2097            return PackageParser.generateApplicationInfo(ps.pkg, flags,
2098                    ps.readUserState(userId), userId);
2099        }
2100        return null;
2101    }
2102
2103    private PackageInfo generatePackageInfoFromSettingsLPw(String packageName, int flags,
2104            int userId) {
2105        if (!sUserManager.exists(userId)) return null;
2106        PackageSetting ps = mSettings.mPackages.get(packageName);
2107        if (ps != null) {
2108            PackageParser.Package pkg = ps.pkg;
2109            if (pkg == null) {
2110                if ((flags & PackageManager.GET_UNINSTALLED_PACKAGES) == 0) {
2111                    return null;
2112                }
2113                // Only data remains, so we aren't worried about code paths
2114                pkg = new PackageParser.Package(packageName);
2115                pkg.applicationInfo.packageName = packageName;
2116                pkg.applicationInfo.flags = ps.pkgFlags | ApplicationInfo.FLAG_IS_DATA_ONLY;
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    @Override
2328    public FeatureInfo[] getSystemAvailableFeatures() {
2329        Collection<FeatureInfo> featSet;
2330        synchronized (mPackages) {
2331            featSet = mAvailableFeatures.values();
2332            int size = featSet.size();
2333            if (size > 0) {
2334                FeatureInfo[] features = new FeatureInfo[size+1];
2335                featSet.toArray(features);
2336                FeatureInfo fi = new FeatureInfo();
2337                fi.reqGlEsVersion = SystemProperties.getInt("ro.opengles.version",
2338                        FeatureInfo.GL_ES_VERSION_UNDEFINED);
2339                features[size] = fi;
2340                return features;
2341            }
2342        }
2343        return null;
2344    }
2345
2346    @Override
2347    public boolean hasSystemFeature(String name) {
2348        synchronized (mPackages) {
2349            return mAvailableFeatures.containsKey(name);
2350        }
2351    }
2352
2353    private void checkValidCaller(int uid, int userId) {
2354        if (UserHandle.getUserId(uid) == userId || uid == Process.SYSTEM_UID || uid == 0)
2355            return;
2356
2357        throw new SecurityException("Caller uid=" + uid
2358                + " is not privileged to communicate with user=" + userId);
2359    }
2360
2361    @Override
2362    public int checkPermission(String permName, String pkgName) {
2363        synchronized (mPackages) {
2364            PackageParser.Package p = mPackages.get(pkgName);
2365            if (p != null && p.mExtras != null) {
2366                PackageSetting ps = (PackageSetting)p.mExtras;
2367                if (ps.sharedUser != null) {
2368                    if (ps.sharedUser.grantedPermissions.contains(permName)) {
2369                        return PackageManager.PERMISSION_GRANTED;
2370                    }
2371                } else if (ps.grantedPermissions.contains(permName)) {
2372                    return PackageManager.PERMISSION_GRANTED;
2373                }
2374            }
2375        }
2376        return PackageManager.PERMISSION_DENIED;
2377    }
2378
2379    @Override
2380    public int checkUidPermission(String permName, int uid) {
2381        synchronized (mPackages) {
2382            Object obj = mSettings.getUserIdLPr(UserHandle.getAppId(uid));
2383            if (obj != null) {
2384                GrantedPermissions gp = (GrantedPermissions)obj;
2385                if (gp.grantedPermissions.contains(permName)) {
2386                    return PackageManager.PERMISSION_GRANTED;
2387                }
2388            } else {
2389                ArraySet<String> perms = mSystemPermissions.get(uid);
2390                if (perms != null && perms.contains(permName)) {
2391                    return PackageManager.PERMISSION_GRANTED;
2392                }
2393            }
2394        }
2395        return PackageManager.PERMISSION_DENIED;
2396    }
2397
2398    /**
2399     * Checks if the request is from the system or an app that has INTERACT_ACROSS_USERS
2400     * or INTERACT_ACROSS_USERS_FULL permissions, if the userid is not for the caller.
2401     * @param checkShell TODO(yamasani):
2402     * @param message the message to log on security exception
2403     */
2404    void enforceCrossUserPermission(int callingUid, int userId, boolean requireFullPermission,
2405            boolean checkShell, String message) {
2406        if (userId < 0) {
2407            throw new IllegalArgumentException("Invalid userId " + userId);
2408        }
2409        if (checkShell) {
2410            enforceShellRestriction(UserManager.DISALLOW_DEBUGGING_FEATURES, callingUid, userId);
2411        }
2412        if (userId == UserHandle.getUserId(callingUid)) return;
2413        if (callingUid != Process.SYSTEM_UID && callingUid != 0) {
2414            if (requireFullPermission) {
2415                mContext.enforceCallingOrSelfPermission(
2416                        android.Manifest.permission.INTERACT_ACROSS_USERS_FULL, message);
2417            } else {
2418                try {
2419                    mContext.enforceCallingOrSelfPermission(
2420                            android.Manifest.permission.INTERACT_ACROSS_USERS_FULL, message);
2421                } catch (SecurityException se) {
2422                    mContext.enforceCallingOrSelfPermission(
2423                            android.Manifest.permission.INTERACT_ACROSS_USERS, message);
2424                }
2425            }
2426        }
2427    }
2428
2429    void enforceShellRestriction(String restriction, int callingUid, int userHandle) {
2430        if (callingUid == Process.SHELL_UID) {
2431            if (userHandle >= 0
2432                    && sUserManager.hasUserRestriction(restriction, userHandle)) {
2433                throw new SecurityException("Shell does not have permission to access user "
2434                        + userHandle);
2435            } else if (userHandle < 0) {
2436                Slog.e(TAG, "Unable to check shell permission for user " + userHandle + "\n\t"
2437                        + Debug.getCallers(3));
2438            }
2439        }
2440    }
2441
2442    private BasePermission findPermissionTreeLP(String permName) {
2443        for(BasePermission bp : mSettings.mPermissionTrees.values()) {
2444            if (permName.startsWith(bp.name) &&
2445                    permName.length() > bp.name.length() &&
2446                    permName.charAt(bp.name.length()) == '.') {
2447                return bp;
2448            }
2449        }
2450        return null;
2451    }
2452
2453    private BasePermission checkPermissionTreeLP(String permName) {
2454        if (permName != null) {
2455            BasePermission bp = findPermissionTreeLP(permName);
2456            if (bp != null) {
2457                if (bp.uid == UserHandle.getAppId(Binder.getCallingUid())) {
2458                    return bp;
2459                }
2460                throw new SecurityException("Calling uid "
2461                        + Binder.getCallingUid()
2462                        + " is not allowed to add to permission tree "
2463                        + bp.name + " owned by uid " + bp.uid);
2464            }
2465        }
2466        throw new SecurityException("No permission tree found for " + permName);
2467    }
2468
2469    static boolean compareStrings(CharSequence s1, CharSequence s2) {
2470        if (s1 == null) {
2471            return s2 == null;
2472        }
2473        if (s2 == null) {
2474            return false;
2475        }
2476        if (s1.getClass() != s2.getClass()) {
2477            return false;
2478        }
2479        return s1.equals(s2);
2480    }
2481
2482    static boolean comparePermissionInfos(PermissionInfo pi1, PermissionInfo pi2) {
2483        if (pi1.icon != pi2.icon) return false;
2484        if (pi1.logo != pi2.logo) return false;
2485        if (pi1.protectionLevel != pi2.protectionLevel) return false;
2486        if (!compareStrings(pi1.name, pi2.name)) return false;
2487        if (!compareStrings(pi1.nonLocalizedLabel, pi2.nonLocalizedLabel)) return false;
2488        // We'll take care of setting this one.
2489        if (!compareStrings(pi1.packageName, pi2.packageName)) return false;
2490        // These are not currently stored in settings.
2491        //if (!compareStrings(pi1.group, pi2.group)) return false;
2492        //if (!compareStrings(pi1.nonLocalizedDescription, pi2.nonLocalizedDescription)) return false;
2493        //if (pi1.labelRes != pi2.labelRes) return false;
2494        //if (pi1.descriptionRes != pi2.descriptionRes) return false;
2495        return true;
2496    }
2497
2498    int permissionInfoFootprint(PermissionInfo info) {
2499        int size = info.name.length();
2500        if (info.nonLocalizedLabel != null) size += info.nonLocalizedLabel.length();
2501        if (info.nonLocalizedDescription != null) size += info.nonLocalizedDescription.length();
2502        return size;
2503    }
2504
2505    int calculateCurrentPermissionFootprintLocked(BasePermission tree) {
2506        int size = 0;
2507        for (BasePermission perm : mSettings.mPermissions.values()) {
2508            if (perm.uid == tree.uid) {
2509                size += perm.name.length() + permissionInfoFootprint(perm.perm.info);
2510            }
2511        }
2512        return size;
2513    }
2514
2515    void enforcePermissionCapLocked(PermissionInfo info, BasePermission tree) {
2516        // We calculate the max size of permissions defined by this uid and throw
2517        // if that plus the size of 'info' would exceed our stated maximum.
2518        if (tree.uid != Process.SYSTEM_UID) {
2519            final int curTreeSize = calculateCurrentPermissionFootprintLocked(tree);
2520            if (curTreeSize + permissionInfoFootprint(info) > MAX_PERMISSION_TREE_FOOTPRINT) {
2521                throw new SecurityException("Permission tree size cap exceeded");
2522            }
2523        }
2524    }
2525
2526    boolean addPermissionLocked(PermissionInfo info, boolean async) {
2527        if (info.labelRes == 0 && info.nonLocalizedLabel == null) {
2528            throw new SecurityException("Label must be specified in permission");
2529        }
2530        BasePermission tree = checkPermissionTreeLP(info.name);
2531        BasePermission bp = mSettings.mPermissions.get(info.name);
2532        boolean added = bp == null;
2533        boolean changed = true;
2534        int fixedLevel = PermissionInfo.fixProtectionLevel(info.protectionLevel);
2535        if (added) {
2536            enforcePermissionCapLocked(info, tree);
2537            bp = new BasePermission(info.name, tree.sourcePackage,
2538                    BasePermission.TYPE_DYNAMIC);
2539        } else if (bp.type != BasePermission.TYPE_DYNAMIC) {
2540            throw new SecurityException(
2541                    "Not allowed to modify non-dynamic permission "
2542                    + info.name);
2543        } else {
2544            if (bp.protectionLevel == fixedLevel
2545                    && bp.perm.owner.equals(tree.perm.owner)
2546                    && bp.uid == tree.uid
2547                    && comparePermissionInfos(bp.perm.info, info)) {
2548                changed = false;
2549            }
2550        }
2551        bp.protectionLevel = fixedLevel;
2552        info = new PermissionInfo(info);
2553        info.protectionLevel = fixedLevel;
2554        bp.perm = new PackageParser.Permission(tree.perm.owner, info);
2555        bp.perm.info.packageName = tree.perm.info.packageName;
2556        bp.uid = tree.uid;
2557        if (added) {
2558            mSettings.mPermissions.put(info.name, bp);
2559        }
2560        if (changed) {
2561            if (!async) {
2562                mSettings.writeLPr();
2563            } else {
2564                scheduleWriteSettingsLocked();
2565            }
2566        }
2567        return added;
2568    }
2569
2570    @Override
2571    public boolean addPermission(PermissionInfo info) {
2572        synchronized (mPackages) {
2573            return addPermissionLocked(info, false);
2574        }
2575    }
2576
2577    @Override
2578    public boolean addPermissionAsync(PermissionInfo info) {
2579        synchronized (mPackages) {
2580            return addPermissionLocked(info, true);
2581        }
2582    }
2583
2584    @Override
2585    public void removePermission(String name) {
2586        synchronized (mPackages) {
2587            checkPermissionTreeLP(name);
2588            BasePermission bp = mSettings.mPermissions.get(name);
2589            if (bp != null) {
2590                if (bp.type != BasePermission.TYPE_DYNAMIC) {
2591                    throw new SecurityException(
2592                            "Not allowed to modify non-dynamic permission "
2593                            + name);
2594                }
2595                mSettings.mPermissions.remove(name);
2596                mSettings.writeLPr();
2597            }
2598        }
2599    }
2600
2601    private static void checkGrantRevokePermissions(PackageParser.Package pkg, BasePermission bp) {
2602        int index = pkg.requestedPermissions.indexOf(bp.name);
2603        if (index == -1) {
2604            throw new SecurityException("Package " + pkg.packageName
2605                    + " has not requested permission " + bp.name);
2606        }
2607        boolean isNormal =
2608                ((bp.protectionLevel&PermissionInfo.PROTECTION_MASK_BASE)
2609                        == PermissionInfo.PROTECTION_NORMAL);
2610        boolean isDangerous =
2611                ((bp.protectionLevel&PermissionInfo.PROTECTION_MASK_BASE)
2612                        == PermissionInfo.PROTECTION_DANGEROUS);
2613        boolean isDevelopment =
2614                ((bp.protectionLevel&PermissionInfo.PROTECTION_FLAG_DEVELOPMENT) != 0);
2615
2616        if (!isNormal && !isDangerous && !isDevelopment) {
2617            throw new SecurityException("Permission " + bp.name
2618                    + " is not a changeable permission type");
2619        }
2620
2621        if (isNormal || isDangerous) {
2622            if (pkg.requestedPermissionsRequired.get(index)) {
2623                throw new SecurityException("Can't change " + bp.name
2624                        + ". It is required by the application");
2625            }
2626        }
2627    }
2628
2629    @Override
2630    public void grantPermission(String packageName, String permissionName) {
2631        mContext.enforceCallingOrSelfPermission(
2632                android.Manifest.permission.GRANT_REVOKE_PERMISSIONS, null);
2633        synchronized (mPackages) {
2634            final PackageParser.Package pkg = mPackages.get(packageName);
2635            if (pkg == null) {
2636                throw new IllegalArgumentException("Unknown package: " + packageName);
2637            }
2638            final BasePermission bp = mSettings.mPermissions.get(permissionName);
2639            if (bp == null) {
2640                throw new IllegalArgumentException("Unknown permission: " + permissionName);
2641            }
2642
2643            checkGrantRevokePermissions(pkg, bp);
2644
2645            final PackageSetting ps = (PackageSetting) pkg.mExtras;
2646            if (ps == null) {
2647                return;
2648            }
2649            final GrantedPermissions gp = (ps.sharedUser != null) ? ps.sharedUser : ps;
2650            if (gp.grantedPermissions.add(permissionName)) {
2651                if (ps.haveGids) {
2652                    gp.gids = appendInts(gp.gids, bp.gids);
2653                }
2654                mSettings.writeLPr();
2655            }
2656        }
2657    }
2658
2659    @Override
2660    public void revokePermission(String packageName, String permissionName) {
2661        int changedAppId = -1;
2662
2663        synchronized (mPackages) {
2664            final PackageParser.Package pkg = mPackages.get(packageName);
2665            if (pkg == null) {
2666                throw new IllegalArgumentException("Unknown package: " + packageName);
2667            }
2668            if (pkg.applicationInfo.uid != Binder.getCallingUid()) {
2669                mContext.enforceCallingOrSelfPermission(
2670                        android.Manifest.permission.GRANT_REVOKE_PERMISSIONS, null);
2671            }
2672            final BasePermission bp = mSettings.mPermissions.get(permissionName);
2673            if (bp == null) {
2674                throw new IllegalArgumentException("Unknown permission: " + permissionName);
2675            }
2676
2677            checkGrantRevokePermissions(pkg, bp);
2678
2679            final PackageSetting ps = (PackageSetting) pkg.mExtras;
2680            if (ps == null) {
2681                return;
2682            }
2683            final GrantedPermissions gp = (ps.sharedUser != null) ? ps.sharedUser : ps;
2684            if (gp.grantedPermissions.remove(permissionName)) {
2685                gp.grantedPermissions.remove(permissionName);
2686                if (ps.haveGids) {
2687                    gp.gids = removeInts(gp.gids, bp.gids);
2688                }
2689                mSettings.writeLPr();
2690                changedAppId = ps.appId;
2691            }
2692        }
2693
2694        if (changedAppId >= 0) {
2695            // We changed the perm on someone, kill its processes.
2696            IActivityManager am = ActivityManagerNative.getDefault();
2697            if (am != null) {
2698                final int callingUserId = UserHandle.getCallingUserId();
2699                final long ident = Binder.clearCallingIdentity();
2700                try {
2701                    //XXX we should only revoke for the calling user's app permissions,
2702                    // but for now we impact all users.
2703                    //am.killUid(UserHandle.getUid(callingUserId, changedAppId),
2704                    //        "revoke " + permissionName);
2705                    int[] users = sUserManager.getUserIds();
2706                    for (int user : users) {
2707                        am.killUid(UserHandle.getUid(user, changedAppId),
2708                                "revoke " + permissionName);
2709                    }
2710                } catch (RemoteException e) {
2711                } finally {
2712                    Binder.restoreCallingIdentity(ident);
2713                }
2714            }
2715        }
2716    }
2717
2718    @Override
2719    public boolean isProtectedBroadcast(String actionName) {
2720        synchronized (mPackages) {
2721            return mProtectedBroadcasts.contains(actionName);
2722        }
2723    }
2724
2725    @Override
2726    public int checkSignatures(String pkg1, String pkg2) {
2727        synchronized (mPackages) {
2728            final PackageParser.Package p1 = mPackages.get(pkg1);
2729            final PackageParser.Package p2 = mPackages.get(pkg2);
2730            if (p1 == null || p1.mExtras == null
2731                    || p2 == null || p2.mExtras == null) {
2732                return PackageManager.SIGNATURE_UNKNOWN_PACKAGE;
2733            }
2734            return compareSignatures(p1.mSignatures, p2.mSignatures);
2735        }
2736    }
2737
2738    @Override
2739    public int checkUidSignatures(int uid1, int uid2) {
2740        // Map to base uids.
2741        uid1 = UserHandle.getAppId(uid1);
2742        uid2 = UserHandle.getAppId(uid2);
2743        // reader
2744        synchronized (mPackages) {
2745            Signature[] s1;
2746            Signature[] s2;
2747            Object obj = mSettings.getUserIdLPr(uid1);
2748            if (obj != null) {
2749                if (obj instanceof SharedUserSetting) {
2750                    s1 = ((SharedUserSetting)obj).signatures.mSignatures;
2751                } else if (obj instanceof PackageSetting) {
2752                    s1 = ((PackageSetting)obj).signatures.mSignatures;
2753                } else {
2754                    return PackageManager.SIGNATURE_UNKNOWN_PACKAGE;
2755                }
2756            } else {
2757                return PackageManager.SIGNATURE_UNKNOWN_PACKAGE;
2758            }
2759            obj = mSettings.getUserIdLPr(uid2);
2760            if (obj != null) {
2761                if (obj instanceof SharedUserSetting) {
2762                    s2 = ((SharedUserSetting)obj).signatures.mSignatures;
2763                } else if (obj instanceof PackageSetting) {
2764                    s2 = ((PackageSetting)obj).signatures.mSignatures;
2765                } else {
2766                    return PackageManager.SIGNATURE_UNKNOWN_PACKAGE;
2767                }
2768            } else {
2769                return PackageManager.SIGNATURE_UNKNOWN_PACKAGE;
2770            }
2771            return compareSignatures(s1, s2);
2772        }
2773    }
2774
2775    /**
2776     * Compares two sets of signatures. Returns:
2777     * <br />
2778     * {@link PackageManager#SIGNATURE_NEITHER_SIGNED}: if both signature sets are null,
2779     * <br />
2780     * {@link PackageManager#SIGNATURE_FIRST_NOT_SIGNED}: if the first signature set is null,
2781     * <br />
2782     * {@link PackageManager#SIGNATURE_SECOND_NOT_SIGNED}: if the second signature set is null,
2783     * <br />
2784     * {@link PackageManager#SIGNATURE_MATCH}: if the two signature sets are identical,
2785     * <br />
2786     * {@link PackageManager#SIGNATURE_NO_MATCH}: if the two signature sets differ.
2787     */
2788    static int compareSignatures(Signature[] s1, Signature[] s2) {
2789        if (s1 == null) {
2790            return s2 == null
2791                    ? PackageManager.SIGNATURE_NEITHER_SIGNED
2792                    : PackageManager.SIGNATURE_FIRST_NOT_SIGNED;
2793        }
2794
2795        if (s2 == null) {
2796            return PackageManager.SIGNATURE_SECOND_NOT_SIGNED;
2797        }
2798
2799        if (s1.length != s2.length) {
2800            return PackageManager.SIGNATURE_NO_MATCH;
2801        }
2802
2803        // Since both signature sets are of size 1, we can compare without HashSets.
2804        if (s1.length == 1) {
2805            return s1[0].equals(s2[0]) ?
2806                    PackageManager.SIGNATURE_MATCH :
2807                    PackageManager.SIGNATURE_NO_MATCH;
2808        }
2809
2810        ArraySet<Signature> set1 = new ArraySet<Signature>();
2811        for (Signature sig : s1) {
2812            set1.add(sig);
2813        }
2814        ArraySet<Signature> set2 = new ArraySet<Signature>();
2815        for (Signature sig : s2) {
2816            set2.add(sig);
2817        }
2818        // Make sure s2 contains all signatures in s1.
2819        if (set1.equals(set2)) {
2820            return PackageManager.SIGNATURE_MATCH;
2821        }
2822        return PackageManager.SIGNATURE_NO_MATCH;
2823    }
2824
2825    /**
2826     * If the database version for this type of package (internal storage or
2827     * external storage) is less than the version where package signatures
2828     * were updated, return true.
2829     */
2830    private boolean isCompatSignatureUpdateNeeded(PackageParser.Package scannedPkg) {
2831        return (isExternal(scannedPkg) && mSettings.isExternalDatabaseVersionOlderThan(
2832                DatabaseVersion.SIGNATURE_END_ENTITY))
2833                || (!isExternal(scannedPkg) && mSettings.isInternalDatabaseVersionOlderThan(
2834                        DatabaseVersion.SIGNATURE_END_ENTITY));
2835    }
2836
2837    /**
2838     * Used for backward compatibility to make sure any packages with
2839     * certificate chains get upgraded to the new style. {@code existingSigs}
2840     * will be in the old format (since they were stored on disk from before the
2841     * system upgrade) and {@code scannedSigs} will be in the newer format.
2842     */
2843    private int compareSignaturesCompat(PackageSignatures existingSigs,
2844            PackageParser.Package scannedPkg) {
2845        if (!isCompatSignatureUpdateNeeded(scannedPkg)) {
2846            return PackageManager.SIGNATURE_NO_MATCH;
2847        }
2848
2849        ArraySet<Signature> existingSet = new ArraySet<Signature>();
2850        for (Signature sig : existingSigs.mSignatures) {
2851            existingSet.add(sig);
2852        }
2853        ArraySet<Signature> scannedCompatSet = new ArraySet<Signature>();
2854        for (Signature sig : scannedPkg.mSignatures) {
2855            try {
2856                Signature[] chainSignatures = sig.getChainSignatures();
2857                for (Signature chainSig : chainSignatures) {
2858                    scannedCompatSet.add(chainSig);
2859                }
2860            } catch (CertificateEncodingException e) {
2861                scannedCompatSet.add(sig);
2862            }
2863        }
2864        /*
2865         * Make sure the expanded scanned set contains all signatures in the
2866         * existing one.
2867         */
2868        if (scannedCompatSet.equals(existingSet)) {
2869            // Migrate the old signatures to the new scheme.
2870            existingSigs.assignSignatures(scannedPkg.mSignatures);
2871            // The new KeySets will be re-added later in the scanning process.
2872            synchronized (mPackages) {
2873                mSettings.mKeySetManagerService.removeAppKeySetDataLPw(scannedPkg.packageName);
2874            }
2875            return PackageManager.SIGNATURE_MATCH;
2876        }
2877        return PackageManager.SIGNATURE_NO_MATCH;
2878    }
2879
2880    @Override
2881    public String[] getPackagesForUid(int uid) {
2882        uid = UserHandle.getAppId(uid);
2883        // reader
2884        synchronized (mPackages) {
2885            Object obj = mSettings.getUserIdLPr(uid);
2886            if (obj instanceof SharedUserSetting) {
2887                final SharedUserSetting sus = (SharedUserSetting) obj;
2888                final int N = sus.packages.size();
2889                final String[] res = new String[N];
2890                final Iterator<PackageSetting> it = sus.packages.iterator();
2891                int i = 0;
2892                while (it.hasNext()) {
2893                    res[i++] = it.next().name;
2894                }
2895                return res;
2896            } else if (obj instanceof PackageSetting) {
2897                final PackageSetting ps = (PackageSetting) obj;
2898                return new String[] { ps.name };
2899            }
2900        }
2901        return null;
2902    }
2903
2904    @Override
2905    public String getNameForUid(int uid) {
2906        // reader
2907        synchronized (mPackages) {
2908            Object obj = mSettings.getUserIdLPr(UserHandle.getAppId(uid));
2909            if (obj instanceof SharedUserSetting) {
2910                final SharedUserSetting sus = (SharedUserSetting) obj;
2911                return sus.name + ":" + sus.userId;
2912            } else if (obj instanceof PackageSetting) {
2913                final PackageSetting ps = (PackageSetting) obj;
2914                return ps.name;
2915            }
2916        }
2917        return null;
2918    }
2919
2920    @Override
2921    public int getUidForSharedUser(String sharedUserName) {
2922        if(sharedUserName == null) {
2923            return -1;
2924        }
2925        // reader
2926        synchronized (mPackages) {
2927            final SharedUserSetting suid = mSettings.getSharedUserLPw(sharedUserName, 0, false);
2928            if (suid == null) {
2929                return -1;
2930            }
2931            return suid.userId;
2932        }
2933    }
2934
2935    @Override
2936    public int getFlagsForUid(int uid) {
2937        synchronized (mPackages) {
2938            Object obj = mSettings.getUserIdLPr(UserHandle.getAppId(uid));
2939            if (obj instanceof SharedUserSetting) {
2940                final SharedUserSetting sus = (SharedUserSetting) obj;
2941                return sus.pkgFlags;
2942            } else if (obj instanceof PackageSetting) {
2943                final PackageSetting ps = (PackageSetting) obj;
2944                return ps.pkgFlags;
2945            }
2946        }
2947        return 0;
2948    }
2949
2950    @Override
2951    public boolean isUidPrivileged(int uid) {
2952        uid = UserHandle.getAppId(uid);
2953        // reader
2954        synchronized (mPackages) {
2955            Object obj = mSettings.getUserIdLPr(uid);
2956            if (obj instanceof SharedUserSetting) {
2957                final SharedUserSetting sus = (SharedUserSetting) obj;
2958                final Iterator<PackageSetting> it = sus.packages.iterator();
2959                while (it.hasNext()) {
2960                    if (it.next().isPrivileged()) {
2961                        return true;
2962                    }
2963                }
2964            } else if (obj instanceof PackageSetting) {
2965                final PackageSetting ps = (PackageSetting) obj;
2966                return ps.isPrivileged();
2967            }
2968        }
2969        return false;
2970    }
2971
2972    @Override
2973    public String[] getAppOpPermissionPackages(String permissionName) {
2974        synchronized (mPackages) {
2975            ArraySet<String> pkgs = mAppOpPermissionPackages.get(permissionName);
2976            if (pkgs == null) {
2977                return null;
2978            }
2979            return pkgs.toArray(new String[pkgs.size()]);
2980        }
2981    }
2982
2983    @Override
2984    public ResolveInfo resolveIntent(Intent intent, String resolvedType,
2985            int flags, int userId) {
2986        if (!sUserManager.exists(userId)) return null;
2987        enforceCrossUserPermission(Binder.getCallingUid(), userId, false, false, "resolve intent");
2988        List<ResolveInfo> query = queryIntentActivities(intent, resolvedType, flags, userId);
2989        return chooseBestActivity(intent, resolvedType, flags, query, userId);
2990    }
2991
2992    @Override
2993    public void setLastChosenActivity(Intent intent, String resolvedType, int flags,
2994            IntentFilter filter, int match, ComponentName activity) {
2995        final int userId = UserHandle.getCallingUserId();
2996        if (DEBUG_PREFERRED) {
2997            Log.v(TAG, "setLastChosenActivity intent=" + intent
2998                + " resolvedType=" + resolvedType
2999                + " flags=" + flags
3000                + " filter=" + filter
3001                + " match=" + match
3002                + " activity=" + activity);
3003            filter.dump(new PrintStreamPrinter(System.out), "    ");
3004        }
3005        intent.setComponent(null);
3006        List<ResolveInfo> query = queryIntentActivities(intent, resolvedType, flags, userId);
3007        // Find any earlier preferred or last chosen entries and nuke them
3008        findPreferredActivity(intent, resolvedType,
3009                flags, query, 0, false, true, false, userId);
3010        // Add the new activity as the last chosen for this filter
3011        addPreferredActivityInternal(filter, match, null, activity, false, userId,
3012                "Setting last chosen");
3013    }
3014
3015    @Override
3016    public ResolveInfo getLastChosenActivity(Intent intent, String resolvedType, int flags) {
3017        final int userId = UserHandle.getCallingUserId();
3018        if (DEBUG_PREFERRED) Log.v(TAG, "Querying last chosen activity for " + intent);
3019        List<ResolveInfo> query = queryIntentActivities(intent, resolvedType, flags, userId);
3020        return findPreferredActivity(intent, resolvedType, flags, query, 0,
3021                false, false, false, userId);
3022    }
3023
3024    private ResolveInfo chooseBestActivity(Intent intent, String resolvedType,
3025            int flags, List<ResolveInfo> query, int userId) {
3026        if (query != null) {
3027            final int N = query.size();
3028            if (N == 1) {
3029                return query.get(0);
3030            } else if (N > 1) {
3031                final boolean debug = ((intent.getFlags() & Intent.FLAG_DEBUG_LOG_RESOLUTION) != 0);
3032                // If there is more than one activity with the same priority,
3033                // then let the user decide between them.
3034                ResolveInfo r0 = query.get(0);
3035                ResolveInfo r1 = query.get(1);
3036                if (DEBUG_INTENT_MATCHING || debug) {
3037                    Slog.v(TAG, r0.activityInfo.name + "=" + r0.priority + " vs "
3038                            + r1.activityInfo.name + "=" + r1.priority);
3039                }
3040                // If the first activity has a higher priority, or a different
3041                // default, then it is always desireable to pick it.
3042                if (r0.priority != r1.priority
3043                        || r0.preferredOrder != r1.preferredOrder
3044                        || r0.isDefault != r1.isDefault) {
3045                    return query.get(0);
3046                }
3047                // If we have saved a preference for a preferred activity for
3048                // this Intent, use that.
3049                ResolveInfo ri = findPreferredActivity(intent, resolvedType,
3050                        flags, query, r0.priority, true, false, debug, userId);
3051                if (ri != null) {
3052                    return ri;
3053                }
3054                if (userId != 0) {
3055                    ri = new ResolveInfo(mResolveInfo);
3056                    ri.activityInfo = new ActivityInfo(ri.activityInfo);
3057                    ri.activityInfo.applicationInfo = new ApplicationInfo(
3058                            ri.activityInfo.applicationInfo);
3059                    ri.activityInfo.applicationInfo.uid = UserHandle.getUid(userId,
3060                            UserHandle.getAppId(ri.activityInfo.applicationInfo.uid));
3061                    return ri;
3062                }
3063                return mResolveInfo;
3064            }
3065        }
3066        return null;
3067    }
3068
3069    private ResolveInfo findPersistentPreferredActivityLP(Intent intent, String resolvedType,
3070            int flags, List<ResolveInfo> query, boolean debug, int userId) {
3071        final int N = query.size();
3072        PersistentPreferredIntentResolver ppir = mSettings.mPersistentPreferredActivities
3073                .get(userId);
3074        // Get the list of persistent preferred activities that handle the intent
3075        if (DEBUG_PREFERRED || debug) Slog.v(TAG, "Looking for presistent preferred activities...");
3076        List<PersistentPreferredActivity> pprefs = ppir != null
3077                ? ppir.queryIntent(intent, resolvedType,
3078                        (flags & PackageManager.MATCH_DEFAULT_ONLY) != 0, userId)
3079                : null;
3080        if (pprefs != null && pprefs.size() > 0) {
3081            final int M = pprefs.size();
3082            for (int i=0; i<M; i++) {
3083                final PersistentPreferredActivity ppa = pprefs.get(i);
3084                if (DEBUG_PREFERRED || debug) {
3085                    Slog.v(TAG, "Checking PersistentPreferredActivity ds="
3086                            + (ppa.countDataSchemes() > 0 ? ppa.getDataScheme(0) : "<none>")
3087                            + "\n  component=" + ppa.mComponent);
3088                    ppa.dump(new LogPrinter(Log.VERBOSE, TAG, Log.LOG_ID_SYSTEM), "  ");
3089                }
3090                final ActivityInfo ai = getActivityInfo(ppa.mComponent,
3091                        flags | PackageManager.GET_DISABLED_COMPONENTS, userId);
3092                if (DEBUG_PREFERRED || debug) {
3093                    Slog.v(TAG, "Found persistent preferred activity:");
3094                    if (ai != null) {
3095                        ai.dump(new LogPrinter(Log.VERBOSE, TAG, Log.LOG_ID_SYSTEM), "  ");
3096                    } else {
3097                        Slog.v(TAG, "  null");
3098                    }
3099                }
3100                if (ai == null) {
3101                    // This previously registered persistent preferred activity
3102                    // component is no longer known. Ignore it and do NOT remove it.
3103                    continue;
3104                }
3105                for (int j=0; j<N; j++) {
3106                    final ResolveInfo ri = query.get(j);
3107                    if (!ri.activityInfo.applicationInfo.packageName
3108                            .equals(ai.applicationInfo.packageName)) {
3109                        continue;
3110                    }
3111                    if (!ri.activityInfo.name.equals(ai.name)) {
3112                        continue;
3113                    }
3114                    //  Found a persistent preference that can handle the intent.
3115                    if (DEBUG_PREFERRED || debug) {
3116                        Slog.v(TAG, "Returning persistent preferred activity: " +
3117                                ri.activityInfo.packageName + "/" + ri.activityInfo.name);
3118                    }
3119                    return ri;
3120                }
3121            }
3122        }
3123        return null;
3124    }
3125
3126    ResolveInfo findPreferredActivity(Intent intent, String resolvedType, int flags,
3127            List<ResolveInfo> query, int priority, boolean always,
3128            boolean removeMatches, boolean debug, int userId) {
3129        if (!sUserManager.exists(userId)) return null;
3130        // writer
3131        synchronized (mPackages) {
3132            if (intent.getSelector() != null) {
3133                intent = intent.getSelector();
3134            }
3135            if (DEBUG_PREFERRED) intent.addFlags(Intent.FLAG_DEBUG_LOG_RESOLUTION);
3136
3137            // Try to find a matching persistent preferred activity.
3138            ResolveInfo pri = findPersistentPreferredActivityLP(intent, resolvedType, flags, query,
3139                    debug, userId);
3140
3141            // If a persistent preferred activity matched, use it.
3142            if (pri != null) {
3143                return pri;
3144            }
3145
3146            PreferredIntentResolver pir = mSettings.mPreferredActivities.get(userId);
3147            // Get the list of preferred activities that handle the intent
3148            if (DEBUG_PREFERRED || debug) Slog.v(TAG, "Looking for preferred activities...");
3149            List<PreferredActivity> prefs = pir != null
3150                    ? pir.queryIntent(intent, resolvedType,
3151                            (flags & PackageManager.MATCH_DEFAULT_ONLY) != 0, userId)
3152                    : null;
3153            if (prefs != null && prefs.size() > 0) {
3154                boolean changed = false;
3155                try {
3156                    // First figure out how good the original match set is.
3157                    // We will only allow preferred activities that came
3158                    // from the same match quality.
3159                    int match = 0;
3160
3161                    if (DEBUG_PREFERRED || debug) Slog.v(TAG, "Figuring out best match...");
3162
3163                    final int N = query.size();
3164                    for (int j=0; j<N; j++) {
3165                        final ResolveInfo ri = query.get(j);
3166                        if (DEBUG_PREFERRED || debug) Slog.v(TAG, "Match for " + ri.activityInfo
3167                                + ": 0x" + Integer.toHexString(match));
3168                        if (ri.match > match) {
3169                            match = ri.match;
3170                        }
3171                    }
3172
3173                    if (DEBUG_PREFERRED || debug) Slog.v(TAG, "Best match: 0x"
3174                            + Integer.toHexString(match));
3175
3176                    match &= IntentFilter.MATCH_CATEGORY_MASK;
3177                    final int M = prefs.size();
3178                    for (int i=0; i<M; i++) {
3179                        final PreferredActivity pa = prefs.get(i);
3180                        if (DEBUG_PREFERRED || debug) {
3181                            Slog.v(TAG, "Checking PreferredActivity ds="
3182                                    + (pa.countDataSchemes() > 0 ? pa.getDataScheme(0) : "<none>")
3183                                    + "\n  component=" + pa.mPref.mComponent);
3184                            pa.dump(new LogPrinter(Log.VERBOSE, TAG, Log.LOG_ID_SYSTEM), "  ");
3185                        }
3186                        if (pa.mPref.mMatch != match) {
3187                            if (DEBUG_PREFERRED || debug) Slog.v(TAG, "Skipping bad match "
3188                                    + Integer.toHexString(pa.mPref.mMatch));
3189                            continue;
3190                        }
3191                        // If it's not an "always" type preferred activity and that's what we're
3192                        // looking for, skip it.
3193                        if (always && !pa.mPref.mAlways) {
3194                            if (DEBUG_PREFERRED || debug) Slog.v(TAG, "Skipping mAlways=false entry");
3195                            continue;
3196                        }
3197                        final ActivityInfo ai = getActivityInfo(pa.mPref.mComponent,
3198                                flags | PackageManager.GET_DISABLED_COMPONENTS, userId);
3199                        if (DEBUG_PREFERRED || debug) {
3200                            Slog.v(TAG, "Found preferred activity:");
3201                            if (ai != null) {
3202                                ai.dump(new LogPrinter(Log.VERBOSE, TAG, Log.LOG_ID_SYSTEM), "  ");
3203                            } else {
3204                                Slog.v(TAG, "  null");
3205                            }
3206                        }
3207                        if (ai == null) {
3208                            // This previously registered preferred activity
3209                            // component is no longer known.  Most likely an update
3210                            // to the app was installed and in the new version this
3211                            // component no longer exists.  Clean it up by removing
3212                            // it from the preferred activities list, and skip it.
3213                            Slog.w(TAG, "Removing dangling preferred activity: "
3214                                    + pa.mPref.mComponent);
3215                            pir.removeFilter(pa);
3216                            changed = true;
3217                            continue;
3218                        }
3219                        for (int j=0; j<N; j++) {
3220                            final ResolveInfo ri = query.get(j);
3221                            if (!ri.activityInfo.applicationInfo.packageName
3222                                    .equals(ai.applicationInfo.packageName)) {
3223                                continue;
3224                            }
3225                            if (!ri.activityInfo.name.equals(ai.name)) {
3226                                continue;
3227                            }
3228
3229                            if (removeMatches) {
3230                                pir.removeFilter(pa);
3231                                changed = true;
3232                                if (DEBUG_PREFERRED) {
3233                                    Slog.v(TAG, "Removing match " + pa.mPref.mComponent);
3234                                }
3235                                break;
3236                            }
3237
3238                            // Okay we found a previously set preferred or last chosen app.
3239                            // If the result set is different from when this
3240                            // was created, we need to clear it and re-ask the
3241                            // user their preference, if we're looking for an "always" type entry.
3242                            if (always && !pa.mPref.sameSet(query, priority)) {
3243                                Slog.i(TAG, "Result set changed, dropping preferred activity for "
3244                                        + intent + " type " + resolvedType);
3245                                if (DEBUG_PREFERRED) {
3246                                    Slog.v(TAG, "Removing preferred activity since set changed "
3247                                            + pa.mPref.mComponent);
3248                                }
3249                                pir.removeFilter(pa);
3250                                // Re-add the filter as a "last chosen" entry (!always)
3251                                PreferredActivity lastChosen = new PreferredActivity(
3252                                        pa, pa.mPref.mMatch, null, pa.mPref.mComponent, false);
3253                                pir.addFilter(lastChosen);
3254                                changed = true;
3255                                return null;
3256                            }
3257
3258                            // Yay! Either the set matched or we're looking for the last chosen
3259                            if (DEBUG_PREFERRED || debug) Slog.v(TAG, "Returning preferred activity: "
3260                                    + ri.activityInfo.packageName + "/" + ri.activityInfo.name);
3261                            return ri;
3262                        }
3263                    }
3264                } finally {
3265                    if (changed) {
3266                        if (DEBUG_PREFERRED) {
3267                            Slog.v(TAG, "Preferred activity bookkeeping changed; writing restrictions");
3268                        }
3269                        mSettings.writePackageRestrictionsLPr(userId);
3270                    }
3271                }
3272            }
3273        }
3274        if (DEBUG_PREFERRED || debug) Slog.v(TAG, "No preferred activity to return");
3275        return null;
3276    }
3277
3278    /*
3279     * Returns if intent can be forwarded from the sourceUserId to the targetUserId
3280     */
3281    @Override
3282    public boolean canForwardTo(Intent intent, String resolvedType, int sourceUserId,
3283            int targetUserId) {
3284        mContext.enforceCallingOrSelfPermission(
3285                android.Manifest.permission.INTERACT_ACROSS_USERS_FULL, null);
3286        List<CrossProfileIntentFilter> matches =
3287                getMatchingCrossProfileIntentFilters(intent, resolvedType, sourceUserId);
3288        if (matches != null) {
3289            int size = matches.size();
3290            for (int i = 0; i < size; i++) {
3291                if (matches.get(i).getTargetUserId() == targetUserId) return true;
3292            }
3293        }
3294        return false;
3295    }
3296
3297    private List<CrossProfileIntentFilter> getMatchingCrossProfileIntentFilters(Intent intent,
3298            String resolvedType, int userId) {
3299        CrossProfileIntentResolver resolver = mSettings.mCrossProfileIntentResolvers.get(userId);
3300        if (resolver != null) {
3301            return resolver.queryIntent(intent, resolvedType, false, userId);
3302        }
3303        return null;
3304    }
3305
3306    @Override
3307    public List<ResolveInfo> queryIntentActivities(Intent intent,
3308            String resolvedType, int flags, int userId) {
3309        if (!sUserManager.exists(userId)) return Collections.emptyList();
3310        enforceCrossUserPermission(Binder.getCallingUid(), userId, false, false, "query intent activities");
3311        ComponentName comp = intent.getComponent();
3312        if (comp == null) {
3313            if (intent.getSelector() != null) {
3314                intent = intent.getSelector();
3315                comp = intent.getComponent();
3316            }
3317        }
3318
3319        if (comp != null) {
3320            final List<ResolveInfo> list = new ArrayList<ResolveInfo>(1);
3321            final ActivityInfo ai = getActivityInfo(comp, flags, userId);
3322            if (ai != null) {
3323                final ResolveInfo ri = new ResolveInfo();
3324                ri.activityInfo = ai;
3325                list.add(ri);
3326            }
3327            return list;
3328        }
3329
3330        // reader
3331        synchronized (mPackages) {
3332            final String pkgName = intent.getPackage();
3333            if (pkgName == null) {
3334                List<CrossProfileIntentFilter> matchingFilters =
3335                        getMatchingCrossProfileIntentFilters(intent, resolvedType, userId);
3336                // Check for results that need to skip the current profile.
3337                ResolveInfo resolveInfo  = querySkipCurrentProfileIntents(matchingFilters, intent,
3338                        resolvedType, flags, userId);
3339                if (resolveInfo != null) {
3340                    List<ResolveInfo> result = new ArrayList<ResolveInfo>(1);
3341                    result.add(resolveInfo);
3342                    return result;
3343                }
3344                // Check for cross profile results.
3345                resolveInfo = queryCrossProfileIntents(
3346                        matchingFilters, intent, resolvedType, flags, userId);
3347
3348                // Check for results in the current profile.
3349                List<ResolveInfo> result = mActivities.queryIntent(
3350                        intent, resolvedType, flags, userId);
3351                if (resolveInfo != null) {
3352                    result.add(resolveInfo);
3353                    Collections.sort(result, mResolvePrioritySorter);
3354                }
3355                return result;
3356            }
3357            final PackageParser.Package pkg = mPackages.get(pkgName);
3358            if (pkg != null) {
3359                return mActivities.queryIntentForPackage(intent, resolvedType, flags,
3360                        pkg.activities, userId);
3361            }
3362            return new ArrayList<ResolveInfo>();
3363        }
3364    }
3365
3366    private ResolveInfo querySkipCurrentProfileIntents(
3367            List<CrossProfileIntentFilter> matchingFilters, Intent intent, String resolvedType,
3368            int flags, int sourceUserId) {
3369        if (matchingFilters != null) {
3370            int size = matchingFilters.size();
3371            for (int i = 0; i < size; i ++) {
3372                CrossProfileIntentFilter filter = matchingFilters.get(i);
3373                if ((filter.getFlags() & PackageManager.SKIP_CURRENT_PROFILE) != 0) {
3374                    // Checking if there are activities in the target user that can handle the
3375                    // intent.
3376                    ResolveInfo resolveInfo = checkTargetCanHandle(filter, intent, resolvedType,
3377                            flags, sourceUserId);
3378                    if (resolveInfo != null) {
3379                        return resolveInfo;
3380                    }
3381                }
3382            }
3383        }
3384        return null;
3385    }
3386
3387    // Return matching ResolveInfo if any for skip current profile intent filters.
3388    private ResolveInfo queryCrossProfileIntents(
3389            List<CrossProfileIntentFilter> matchingFilters, Intent intent, String resolvedType,
3390            int flags, int sourceUserId) {
3391        if (matchingFilters != null) {
3392            // Two {@link CrossProfileIntentFilter}s can have the same targetUserId and
3393            // match the same intent. For performance reasons, it is better not to
3394            // run queryIntent twice for the same userId
3395            SparseBooleanArray alreadyTriedUserIds = new SparseBooleanArray();
3396            int size = matchingFilters.size();
3397            for (int i = 0; i < size; i++) {
3398                CrossProfileIntentFilter filter = matchingFilters.get(i);
3399                int targetUserId = filter.getTargetUserId();
3400                if ((filter.getFlags() & PackageManager.SKIP_CURRENT_PROFILE) == 0
3401                        && !alreadyTriedUserIds.get(targetUserId)) {
3402                    // Checking if there are activities in the target user that can handle the
3403                    // intent.
3404                    ResolveInfo resolveInfo = checkTargetCanHandle(filter, intent, resolvedType,
3405                            flags, sourceUserId);
3406                    if (resolveInfo != null) return resolveInfo;
3407                    alreadyTriedUserIds.put(targetUserId, true);
3408                }
3409            }
3410        }
3411        return null;
3412    }
3413
3414    private ResolveInfo checkTargetCanHandle(CrossProfileIntentFilter filter, Intent intent,
3415            String resolvedType, int flags, int sourceUserId) {
3416        List<ResolveInfo> resultTargetUser = mActivities.queryIntent(intent,
3417                resolvedType, flags, filter.getTargetUserId());
3418        if (resultTargetUser != null && !resultTargetUser.isEmpty()) {
3419            return createForwardingResolveInfo(filter, sourceUserId, filter.getTargetUserId());
3420        }
3421        return null;
3422    }
3423
3424    private ResolveInfo createForwardingResolveInfo(IntentFilter filter,
3425            int sourceUserId, int targetUserId) {
3426        ResolveInfo forwardingResolveInfo = new ResolveInfo();
3427        String className;
3428        if (targetUserId == UserHandle.USER_OWNER) {
3429            className = FORWARD_INTENT_TO_USER_OWNER;
3430        } else {
3431            className = FORWARD_INTENT_TO_MANAGED_PROFILE;
3432        }
3433        ComponentName forwardingActivityComponentName = new ComponentName(
3434                mAndroidApplication.packageName, className);
3435        ActivityInfo forwardingActivityInfo = getActivityInfo(forwardingActivityComponentName, 0,
3436                sourceUserId);
3437        if (targetUserId == UserHandle.USER_OWNER) {
3438            forwardingActivityInfo.showUserIcon = UserHandle.USER_OWNER;
3439            forwardingResolveInfo.noResourceId = true;
3440        }
3441        forwardingResolveInfo.activityInfo = forwardingActivityInfo;
3442        forwardingResolveInfo.priority = 0;
3443        forwardingResolveInfo.preferredOrder = 0;
3444        forwardingResolveInfo.match = 0;
3445        forwardingResolveInfo.isDefault = true;
3446        forwardingResolveInfo.filter = filter;
3447        forwardingResolveInfo.targetUserId = targetUserId;
3448        return forwardingResolveInfo;
3449    }
3450
3451    @Override
3452    public List<ResolveInfo> queryIntentActivityOptions(ComponentName caller,
3453            Intent[] specifics, String[] specificTypes, Intent intent,
3454            String resolvedType, int flags, int userId) {
3455        if (!sUserManager.exists(userId)) return Collections.emptyList();
3456        enforceCrossUserPermission(Binder.getCallingUid(), userId, false,
3457                false, "query intent activity options");
3458        final String resultsAction = intent.getAction();
3459
3460        List<ResolveInfo> results = queryIntentActivities(intent, resolvedType, flags
3461                | PackageManager.GET_RESOLVED_FILTER, userId);
3462
3463        if (DEBUG_INTENT_MATCHING) {
3464            Log.v(TAG, "Query " + intent + ": " + results);
3465        }
3466
3467        int specificsPos = 0;
3468        int N;
3469
3470        // todo: note that the algorithm used here is O(N^2).  This
3471        // isn't a problem in our current environment, but if we start running
3472        // into situations where we have more than 5 or 10 matches then this
3473        // should probably be changed to something smarter...
3474
3475        // First we go through and resolve each of the specific items
3476        // that were supplied, taking care of removing any corresponding
3477        // duplicate items in the generic resolve list.
3478        if (specifics != null) {
3479            for (int i=0; i<specifics.length; i++) {
3480                final Intent sintent = specifics[i];
3481                if (sintent == null) {
3482                    continue;
3483                }
3484
3485                if (DEBUG_INTENT_MATCHING) {
3486                    Log.v(TAG, "Specific #" + i + ": " + sintent);
3487                }
3488
3489                String action = sintent.getAction();
3490                if (resultsAction != null && resultsAction.equals(action)) {
3491                    // If this action was explicitly requested, then don't
3492                    // remove things that have it.
3493                    action = null;
3494                }
3495
3496                ResolveInfo ri = null;
3497                ActivityInfo ai = null;
3498
3499                ComponentName comp = sintent.getComponent();
3500                if (comp == null) {
3501                    ri = resolveIntent(
3502                        sintent,
3503                        specificTypes != null ? specificTypes[i] : null,
3504                            flags, userId);
3505                    if (ri == null) {
3506                        continue;
3507                    }
3508                    if (ri == mResolveInfo) {
3509                        // ACK!  Must do something better with this.
3510                    }
3511                    ai = ri.activityInfo;
3512                    comp = new ComponentName(ai.applicationInfo.packageName,
3513                            ai.name);
3514                } else {
3515                    ai = getActivityInfo(comp, flags, userId);
3516                    if (ai == null) {
3517                        continue;
3518                    }
3519                }
3520
3521                // Look for any generic query activities that are duplicates
3522                // of this specific one, and remove them from the results.
3523                if (DEBUG_INTENT_MATCHING) Log.v(TAG, "Specific #" + i + ": " + ai);
3524                N = results.size();
3525                int j;
3526                for (j=specificsPos; j<N; j++) {
3527                    ResolveInfo sri = results.get(j);
3528                    if ((sri.activityInfo.name.equals(comp.getClassName())
3529                            && sri.activityInfo.applicationInfo.packageName.equals(
3530                                    comp.getPackageName()))
3531                        || (action != null && sri.filter.matchAction(action))) {
3532                        results.remove(j);
3533                        if (DEBUG_INTENT_MATCHING) Log.v(
3534                            TAG, "Removing duplicate item from " + j
3535                            + " due to specific " + specificsPos);
3536                        if (ri == null) {
3537                            ri = sri;
3538                        }
3539                        j--;
3540                        N--;
3541                    }
3542                }
3543
3544                // Add this specific item to its proper place.
3545                if (ri == null) {
3546                    ri = new ResolveInfo();
3547                    ri.activityInfo = ai;
3548                }
3549                results.add(specificsPos, ri);
3550                ri.specificIndex = i;
3551                specificsPos++;
3552            }
3553        }
3554
3555        // Now we go through the remaining generic results and remove any
3556        // duplicate actions that are found here.
3557        N = results.size();
3558        for (int i=specificsPos; i<N-1; i++) {
3559            final ResolveInfo rii = results.get(i);
3560            if (rii.filter == null) {
3561                continue;
3562            }
3563
3564            // Iterate over all of the actions of this result's intent
3565            // filter...  typically this should be just one.
3566            final Iterator<String> it = rii.filter.actionsIterator();
3567            if (it == null) {
3568                continue;
3569            }
3570            while (it.hasNext()) {
3571                final String action = it.next();
3572                if (resultsAction != null && resultsAction.equals(action)) {
3573                    // If this action was explicitly requested, then don't
3574                    // remove things that have it.
3575                    continue;
3576                }
3577                for (int j=i+1; j<N; j++) {
3578                    final ResolveInfo rij = results.get(j);
3579                    if (rij.filter != null && rij.filter.hasAction(action)) {
3580                        results.remove(j);
3581                        if (DEBUG_INTENT_MATCHING) Log.v(
3582                            TAG, "Removing duplicate item from " + j
3583                            + " due to action " + action + " at " + i);
3584                        j--;
3585                        N--;
3586                    }
3587                }
3588            }
3589
3590            // If the caller didn't request filter information, drop it now
3591            // so we don't have to marshall/unmarshall it.
3592            if ((flags&PackageManager.GET_RESOLVED_FILTER) == 0) {
3593                rii.filter = null;
3594            }
3595        }
3596
3597        // Filter out the caller activity if so requested.
3598        if (caller != null) {
3599            N = results.size();
3600            for (int i=0; i<N; i++) {
3601                ActivityInfo ainfo = results.get(i).activityInfo;
3602                if (caller.getPackageName().equals(ainfo.applicationInfo.packageName)
3603                        && caller.getClassName().equals(ainfo.name)) {
3604                    results.remove(i);
3605                    break;
3606                }
3607            }
3608        }
3609
3610        // If the caller didn't request filter information,
3611        // drop them now so we don't have to
3612        // marshall/unmarshall it.
3613        if ((flags&PackageManager.GET_RESOLVED_FILTER) == 0) {
3614            N = results.size();
3615            for (int i=0; i<N; i++) {
3616                results.get(i).filter = null;
3617            }
3618        }
3619
3620        if (DEBUG_INTENT_MATCHING) Log.v(TAG, "Result: " + results);
3621        return results;
3622    }
3623
3624    @Override
3625    public List<ResolveInfo> queryIntentReceivers(Intent intent, String resolvedType, int flags,
3626            int userId) {
3627        if (!sUserManager.exists(userId)) return Collections.emptyList();
3628        ComponentName comp = intent.getComponent();
3629        if (comp == null) {
3630            if (intent.getSelector() != null) {
3631                intent = intent.getSelector();
3632                comp = intent.getComponent();
3633            }
3634        }
3635        if (comp != null) {
3636            List<ResolveInfo> list = new ArrayList<ResolveInfo>(1);
3637            ActivityInfo ai = getReceiverInfo(comp, flags, userId);
3638            if (ai != null) {
3639                ResolveInfo ri = new ResolveInfo();
3640                ri.activityInfo = ai;
3641                list.add(ri);
3642            }
3643            return list;
3644        }
3645
3646        // reader
3647        synchronized (mPackages) {
3648            String pkgName = intent.getPackage();
3649            if (pkgName == null) {
3650                return mReceivers.queryIntent(intent, resolvedType, flags, userId);
3651            }
3652            final PackageParser.Package pkg = mPackages.get(pkgName);
3653            if (pkg != null) {
3654                return mReceivers.queryIntentForPackage(intent, resolvedType, flags, pkg.receivers,
3655                        userId);
3656            }
3657            return null;
3658        }
3659    }
3660
3661    @Override
3662    public ResolveInfo resolveService(Intent intent, String resolvedType, int flags, int userId) {
3663        List<ResolveInfo> query = queryIntentServices(intent, resolvedType, flags, userId);
3664        if (!sUserManager.exists(userId)) return null;
3665        if (query != null) {
3666            if (query.size() >= 1) {
3667                // If there is more than one service with the same priority,
3668                // just arbitrarily pick the first one.
3669                return query.get(0);
3670            }
3671        }
3672        return null;
3673    }
3674
3675    @Override
3676    public List<ResolveInfo> queryIntentServices(Intent intent, String resolvedType, int flags,
3677            int userId) {
3678        if (!sUserManager.exists(userId)) return Collections.emptyList();
3679        ComponentName comp = intent.getComponent();
3680        if (comp == null) {
3681            if (intent.getSelector() != null) {
3682                intent = intent.getSelector();
3683                comp = intent.getComponent();
3684            }
3685        }
3686        if (comp != null) {
3687            final List<ResolveInfo> list = new ArrayList<ResolveInfo>(1);
3688            final ServiceInfo si = getServiceInfo(comp, flags, userId);
3689            if (si != null) {
3690                final ResolveInfo ri = new ResolveInfo();
3691                ri.serviceInfo = si;
3692                list.add(ri);
3693            }
3694            return list;
3695        }
3696
3697        // reader
3698        synchronized (mPackages) {
3699            String pkgName = intent.getPackage();
3700            if (pkgName == null) {
3701                return mServices.queryIntent(intent, resolvedType, flags, userId);
3702            }
3703            final PackageParser.Package pkg = mPackages.get(pkgName);
3704            if (pkg != null) {
3705                return mServices.queryIntentForPackage(intent, resolvedType, flags, pkg.services,
3706                        userId);
3707            }
3708            return null;
3709        }
3710    }
3711
3712    @Override
3713    public List<ResolveInfo> queryIntentContentProviders(
3714            Intent intent, String resolvedType, int flags, int userId) {
3715        if (!sUserManager.exists(userId)) return Collections.emptyList();
3716        ComponentName comp = intent.getComponent();
3717        if (comp == null) {
3718            if (intent.getSelector() != null) {
3719                intent = intent.getSelector();
3720                comp = intent.getComponent();
3721            }
3722        }
3723        if (comp != null) {
3724            final List<ResolveInfo> list = new ArrayList<ResolveInfo>(1);
3725            final ProviderInfo pi = getProviderInfo(comp, flags, userId);
3726            if (pi != null) {
3727                final ResolveInfo ri = new ResolveInfo();
3728                ri.providerInfo = pi;
3729                list.add(ri);
3730            }
3731            return list;
3732        }
3733
3734        // reader
3735        synchronized (mPackages) {
3736            String pkgName = intent.getPackage();
3737            if (pkgName == null) {
3738                return mProviders.queryIntent(intent, resolvedType, flags, userId);
3739            }
3740            final PackageParser.Package pkg = mPackages.get(pkgName);
3741            if (pkg != null) {
3742                return mProviders.queryIntentForPackage(
3743                        intent, resolvedType, flags, pkg.providers, userId);
3744            }
3745            return null;
3746        }
3747    }
3748
3749    @Override
3750    public ParceledListSlice<PackageInfo> getInstalledPackages(int flags, int userId) {
3751        final boolean listUninstalled = (flags & PackageManager.GET_UNINSTALLED_PACKAGES) != 0;
3752
3753        enforceCrossUserPermission(Binder.getCallingUid(), userId, true, false, "get installed packages");
3754
3755        // writer
3756        synchronized (mPackages) {
3757            ArrayList<PackageInfo> list;
3758            if (listUninstalled) {
3759                list = new ArrayList<PackageInfo>(mSettings.mPackages.size());
3760                for (PackageSetting ps : mSettings.mPackages.values()) {
3761                    PackageInfo pi;
3762                    if (ps.pkg != null) {
3763                        pi = generatePackageInfo(ps.pkg, flags, userId);
3764                    } else {
3765                        pi = generatePackageInfoFromSettingsLPw(ps.name, flags, userId);
3766                    }
3767                    if (pi != null) {
3768                        list.add(pi);
3769                    }
3770                }
3771            } else {
3772                list = new ArrayList<PackageInfo>(mPackages.size());
3773                for (PackageParser.Package p : mPackages.values()) {
3774                    PackageInfo pi = generatePackageInfo(p, flags, userId);
3775                    if (pi != null) {
3776                        list.add(pi);
3777                    }
3778                }
3779            }
3780
3781            return new ParceledListSlice<PackageInfo>(list);
3782        }
3783    }
3784
3785    private void addPackageHoldingPermissions(ArrayList<PackageInfo> list, PackageSetting ps,
3786            String[] permissions, boolean[] tmp, int flags, int userId) {
3787        int numMatch = 0;
3788        final GrantedPermissions gp = ps.sharedUser != null ? ps.sharedUser : ps;
3789        for (int i=0; i<permissions.length; i++) {
3790            if (gp.grantedPermissions.contains(permissions[i])) {
3791                tmp[i] = true;
3792                numMatch++;
3793            } else {
3794                tmp[i] = false;
3795            }
3796        }
3797        if (numMatch == 0) {
3798            return;
3799        }
3800        PackageInfo pi;
3801        if (ps.pkg != null) {
3802            pi = generatePackageInfo(ps.pkg, flags, userId);
3803        } else {
3804            pi = generatePackageInfoFromSettingsLPw(ps.name, flags, userId);
3805        }
3806        // The above might return null in cases of uninstalled apps or install-state
3807        // skew across users/profiles.
3808        if (pi != null) {
3809            if ((flags&PackageManager.GET_PERMISSIONS) == 0) {
3810                if (numMatch == permissions.length) {
3811                    pi.requestedPermissions = permissions;
3812                } else {
3813                    pi.requestedPermissions = new String[numMatch];
3814                    numMatch = 0;
3815                    for (int i=0; i<permissions.length; i++) {
3816                        if (tmp[i]) {
3817                            pi.requestedPermissions[numMatch] = permissions[i];
3818                            numMatch++;
3819                        }
3820                    }
3821                }
3822            }
3823            list.add(pi);
3824        }
3825    }
3826
3827    @Override
3828    public ParceledListSlice<PackageInfo> getPackagesHoldingPermissions(
3829            String[] permissions, int flags, int userId) {
3830        if (!sUserManager.exists(userId)) return null;
3831        final boolean listUninstalled = (flags & PackageManager.GET_UNINSTALLED_PACKAGES) != 0;
3832
3833        // writer
3834        synchronized (mPackages) {
3835            ArrayList<PackageInfo> list = new ArrayList<PackageInfo>();
3836            boolean[] tmpBools = new boolean[permissions.length];
3837            if (listUninstalled) {
3838                for (PackageSetting ps : mSettings.mPackages.values()) {
3839                    addPackageHoldingPermissions(list, ps, permissions, tmpBools, flags, userId);
3840                }
3841            } else {
3842                for (PackageParser.Package pkg : mPackages.values()) {
3843                    PackageSetting ps = (PackageSetting)pkg.mExtras;
3844                    if (ps != null) {
3845                        addPackageHoldingPermissions(list, ps, permissions, tmpBools, flags,
3846                                userId);
3847                    }
3848                }
3849            }
3850
3851            return new ParceledListSlice<PackageInfo>(list);
3852        }
3853    }
3854
3855    @Override
3856    public ParceledListSlice<ApplicationInfo> getInstalledApplications(int flags, int userId) {
3857        if (!sUserManager.exists(userId)) return null;
3858        final boolean listUninstalled = (flags & PackageManager.GET_UNINSTALLED_PACKAGES) != 0;
3859
3860        // writer
3861        synchronized (mPackages) {
3862            ArrayList<ApplicationInfo> list;
3863            if (listUninstalled) {
3864                list = new ArrayList<ApplicationInfo>(mSettings.mPackages.size());
3865                for (PackageSetting ps : mSettings.mPackages.values()) {
3866                    ApplicationInfo ai;
3867                    if (ps.pkg != null) {
3868                        ai = PackageParser.generateApplicationInfo(ps.pkg, flags,
3869                                ps.readUserState(userId), userId);
3870                    } else {
3871                        ai = generateApplicationInfoFromSettingsLPw(ps.name, flags, userId);
3872                    }
3873                    if (ai != null) {
3874                        list.add(ai);
3875                    }
3876                }
3877            } else {
3878                list = new ArrayList<ApplicationInfo>(mPackages.size());
3879                for (PackageParser.Package p : mPackages.values()) {
3880                    if (p.mExtras != null) {
3881                        ApplicationInfo ai = PackageParser.generateApplicationInfo(p, flags,
3882                                ((PackageSetting)p.mExtras).readUserState(userId), userId);
3883                        if (ai != null) {
3884                            list.add(ai);
3885                        }
3886                    }
3887                }
3888            }
3889
3890            return new ParceledListSlice<ApplicationInfo>(list);
3891        }
3892    }
3893
3894    public List<ApplicationInfo> getPersistentApplications(int flags) {
3895        final ArrayList<ApplicationInfo> finalList = new ArrayList<ApplicationInfo>();
3896
3897        // reader
3898        synchronized (mPackages) {
3899            final Iterator<PackageParser.Package> i = mPackages.values().iterator();
3900            final int userId = UserHandle.getCallingUserId();
3901            while (i.hasNext()) {
3902                final PackageParser.Package p = i.next();
3903                if (p.applicationInfo != null
3904                        && (p.applicationInfo.flags&ApplicationInfo.FLAG_PERSISTENT) != 0
3905                        && (!mSafeMode || isSystemApp(p))) {
3906                    PackageSetting ps = mSettings.mPackages.get(p.packageName);
3907                    if (ps != null) {
3908                        ApplicationInfo ai = PackageParser.generateApplicationInfo(p, flags,
3909                                ps.readUserState(userId), userId);
3910                        if (ai != null) {
3911                            finalList.add(ai);
3912                        }
3913                    }
3914                }
3915            }
3916        }
3917
3918        return finalList;
3919    }
3920
3921    @Override
3922    public ProviderInfo resolveContentProvider(String name, int flags, int userId) {
3923        if (!sUserManager.exists(userId)) return null;
3924        // reader
3925        synchronized (mPackages) {
3926            final PackageParser.Provider provider = mProvidersByAuthority.get(name);
3927            PackageSetting ps = provider != null
3928                    ? mSettings.mPackages.get(provider.owner.packageName)
3929                    : null;
3930            return ps != null
3931                    && mSettings.isEnabledLPr(provider.info, flags, userId)
3932                    && (!mSafeMode || (provider.info.applicationInfo.flags
3933                            &ApplicationInfo.FLAG_SYSTEM) != 0)
3934                    ? PackageParser.generateProviderInfo(provider, flags,
3935                            ps.readUserState(userId), userId)
3936                    : null;
3937        }
3938    }
3939
3940    /**
3941     * @deprecated
3942     */
3943    @Deprecated
3944    public void querySyncProviders(List<String> outNames, List<ProviderInfo> outInfo) {
3945        // reader
3946        synchronized (mPackages) {
3947            final Iterator<Map.Entry<String, PackageParser.Provider>> i = mProvidersByAuthority
3948                    .entrySet().iterator();
3949            final int userId = UserHandle.getCallingUserId();
3950            while (i.hasNext()) {
3951                Map.Entry<String, PackageParser.Provider> entry = i.next();
3952                PackageParser.Provider p = entry.getValue();
3953                PackageSetting ps = mSettings.mPackages.get(p.owner.packageName);
3954
3955                if (ps != null && p.syncable
3956                        && (!mSafeMode || (p.info.applicationInfo.flags
3957                                &ApplicationInfo.FLAG_SYSTEM) != 0)) {
3958                    ProviderInfo info = PackageParser.generateProviderInfo(p, 0,
3959                            ps.readUserState(userId), userId);
3960                    if (info != null) {
3961                        outNames.add(entry.getKey());
3962                        outInfo.add(info);
3963                    }
3964                }
3965            }
3966        }
3967    }
3968
3969    @Override
3970    public List<ProviderInfo> queryContentProviders(String processName,
3971            int uid, int flags) {
3972        ArrayList<ProviderInfo> finalList = null;
3973        // reader
3974        synchronized (mPackages) {
3975            final Iterator<PackageParser.Provider> i = mProviders.mProviders.values().iterator();
3976            final int userId = processName != null ?
3977                    UserHandle.getUserId(uid) : UserHandle.getCallingUserId();
3978            while (i.hasNext()) {
3979                final PackageParser.Provider p = i.next();
3980                PackageSetting ps = mSettings.mPackages.get(p.owner.packageName);
3981                if (ps != null && p.info.authority != null
3982                        && (processName == null
3983                                || (p.info.processName.equals(processName)
3984                                        && UserHandle.isSameApp(p.info.applicationInfo.uid, uid)))
3985                        && mSettings.isEnabledLPr(p.info, flags, userId)
3986                        && (!mSafeMode
3987                                || (p.info.applicationInfo.flags & ApplicationInfo.FLAG_SYSTEM) != 0)) {
3988                    if (finalList == null) {
3989                        finalList = new ArrayList<ProviderInfo>(3);
3990                    }
3991                    ProviderInfo info = PackageParser.generateProviderInfo(p, flags,
3992                            ps.readUserState(userId), userId);
3993                    if (info != null) {
3994                        finalList.add(info);
3995                    }
3996                }
3997            }
3998        }
3999
4000        if (finalList != null) {
4001            Collections.sort(finalList, mProviderInitOrderSorter);
4002        }
4003
4004        return finalList;
4005    }
4006
4007    @Override
4008    public InstrumentationInfo getInstrumentationInfo(ComponentName name,
4009            int flags) {
4010        // reader
4011        synchronized (mPackages) {
4012            final PackageParser.Instrumentation i = mInstrumentation.get(name);
4013            return PackageParser.generateInstrumentationInfo(i, flags);
4014        }
4015    }
4016
4017    @Override
4018    public List<InstrumentationInfo> queryInstrumentation(String targetPackage,
4019            int flags) {
4020        ArrayList<InstrumentationInfo> finalList =
4021            new ArrayList<InstrumentationInfo>();
4022
4023        // reader
4024        synchronized (mPackages) {
4025            final Iterator<PackageParser.Instrumentation> i = mInstrumentation.values().iterator();
4026            while (i.hasNext()) {
4027                final PackageParser.Instrumentation p = i.next();
4028                if (targetPackage == null
4029                        || targetPackage.equals(p.info.targetPackage)) {
4030                    InstrumentationInfo ii = PackageParser.generateInstrumentationInfo(p,
4031                            flags);
4032                    if (ii != null) {
4033                        finalList.add(ii);
4034                    }
4035                }
4036            }
4037        }
4038
4039        return finalList;
4040    }
4041
4042    private void createIdmapsForPackageLI(PackageParser.Package pkg) {
4043        ArrayMap<String, PackageParser.Package> overlays = mOverlays.get(pkg.packageName);
4044        if (overlays == null) {
4045            Slog.w(TAG, "Unable to create idmap for " + pkg.packageName + ": no overlay packages");
4046            return;
4047        }
4048        for (PackageParser.Package opkg : overlays.values()) {
4049            // Not much to do if idmap fails: we already logged the error
4050            // and we certainly don't want to abort installation of pkg simply
4051            // because an overlay didn't fit properly. For these reasons,
4052            // ignore the return value of createIdmapForPackagePairLI.
4053            createIdmapForPackagePairLI(pkg, opkg);
4054        }
4055    }
4056
4057    private boolean createIdmapForPackagePairLI(PackageParser.Package pkg,
4058            PackageParser.Package opkg) {
4059        if (!opkg.mTrustedOverlay) {
4060            Slog.w(TAG, "Skipping target and overlay pair " + pkg.baseCodePath + " and " +
4061                    opkg.baseCodePath + ": overlay not trusted");
4062            return false;
4063        }
4064        ArrayMap<String, PackageParser.Package> overlaySet = mOverlays.get(pkg.packageName);
4065        if (overlaySet == null) {
4066            Slog.e(TAG, "was about to create idmap for " + pkg.baseCodePath + " and " +
4067                    opkg.baseCodePath + " but target package has no known overlays");
4068            return false;
4069        }
4070        final int sharedGid = UserHandle.getSharedAppGid(pkg.applicationInfo.uid);
4071        // TODO: generate idmap for split APKs
4072        if (mInstaller.idmap(pkg.baseCodePath, opkg.baseCodePath, sharedGid) != 0) {
4073            Slog.e(TAG, "Failed to generate idmap for " + pkg.baseCodePath + " and "
4074                    + opkg.baseCodePath);
4075            return false;
4076        }
4077        PackageParser.Package[] overlayArray =
4078            overlaySet.values().toArray(new PackageParser.Package[0]);
4079        Comparator<PackageParser.Package> cmp = new Comparator<PackageParser.Package>() {
4080            public int compare(PackageParser.Package p1, PackageParser.Package p2) {
4081                return p1.mOverlayPriority - p2.mOverlayPriority;
4082            }
4083        };
4084        Arrays.sort(overlayArray, cmp);
4085
4086        pkg.applicationInfo.resourceDirs = new String[overlayArray.length];
4087        int i = 0;
4088        for (PackageParser.Package p : overlayArray) {
4089            pkg.applicationInfo.resourceDirs[i++] = p.baseCodePath;
4090        }
4091        return true;
4092    }
4093
4094    private void scanDirLI(File dir, int parseFlags, int scanFlags, long currentTime) {
4095        final File[] files = dir.listFiles();
4096        if (ArrayUtils.isEmpty(files)) {
4097            Log.d(TAG, "No files in app dir " + dir);
4098            return;
4099        }
4100
4101        if (DEBUG_PACKAGE_SCANNING) {
4102            Log.d(TAG, "Scanning app dir " + dir + " scanFlags=" + scanFlags
4103                    + " flags=0x" + Integer.toHexString(parseFlags));
4104        }
4105
4106        for (File file : files) {
4107            final boolean isPackage = (isApkFile(file) || file.isDirectory())
4108                    && !PackageInstallerService.isStageName(file.getName());
4109            if (!isPackage) {
4110                // Ignore entries which are not packages
4111                continue;
4112            }
4113            try {
4114                scanPackageLI(file, parseFlags | PackageParser.PARSE_MUST_BE_APK,
4115                        scanFlags, currentTime, null);
4116            } catch (PackageManagerException e) {
4117                Slog.w(TAG, "Failed to parse " + file + ": " + e.getMessage());
4118
4119                // Delete invalid userdata apps
4120                if ((parseFlags & PackageParser.PARSE_IS_SYSTEM) == 0 &&
4121                        e.error == PackageManager.INSTALL_FAILED_INVALID_APK) {
4122                    logCriticalInfo(Log.WARN, "Deleting invalid package at " + file);
4123                    if (file.isDirectory()) {
4124                        FileUtils.deleteContents(file);
4125                    }
4126                    file.delete();
4127                }
4128            }
4129        }
4130    }
4131
4132    private static File getSettingsProblemFile() {
4133        File dataDir = Environment.getDataDirectory();
4134        File systemDir = new File(dataDir, "system");
4135        File fname = new File(systemDir, "uiderrors.txt");
4136        return fname;
4137    }
4138
4139    static void reportSettingsProblem(int priority, String msg) {
4140        logCriticalInfo(priority, msg);
4141    }
4142
4143    static void logCriticalInfo(int priority, String msg) {
4144        Slog.println(priority, TAG, msg);
4145        EventLogTags.writePmCriticalInfo(msg);
4146        try {
4147            File fname = getSettingsProblemFile();
4148            FileOutputStream out = new FileOutputStream(fname, true);
4149            PrintWriter pw = new FastPrintWriter(out);
4150            SimpleDateFormat formatter = new SimpleDateFormat();
4151            String dateString = formatter.format(new Date(System.currentTimeMillis()));
4152            pw.println(dateString + ": " + msg);
4153            pw.close();
4154            FileUtils.setPermissions(
4155                    fname.toString(),
4156                    FileUtils.S_IRWXU|FileUtils.S_IRWXG|FileUtils.S_IROTH,
4157                    -1, -1);
4158        } catch (java.io.IOException e) {
4159        }
4160    }
4161
4162    private void collectCertificatesLI(PackageParser pp, PackageSetting ps,
4163            PackageParser.Package pkg, File srcFile, int parseFlags)
4164            throws PackageManagerException {
4165        if (ps != null
4166                && ps.codePath.equals(srcFile)
4167                && ps.timeStamp == srcFile.lastModified()
4168                && !isCompatSignatureUpdateNeeded(pkg)) {
4169            long mSigningKeySetId = ps.keySetData.getProperSigningKeySet();
4170            if (ps.signatures.mSignatures != null
4171                    && ps.signatures.mSignatures.length != 0
4172                    && mSigningKeySetId != PackageKeySetData.KEYSET_UNASSIGNED) {
4173                // Optimization: reuse the existing cached certificates
4174                // if the package appears to be unchanged.
4175                pkg.mSignatures = ps.signatures.mSignatures;
4176                KeySetManagerService ksms = mSettings.mKeySetManagerService;
4177                synchronized (mPackages) {
4178                    pkg.mSigningKeys = ksms.getPublicKeysFromKeySetLPr(mSigningKeySetId);
4179                }
4180                return;
4181            }
4182
4183            Slog.w(TAG, "PackageSetting for " + ps.name
4184                    + " is missing signatures.  Collecting certs again to recover them.");
4185        } else {
4186            Log.i(TAG, srcFile.toString() + " changed; collecting certs");
4187        }
4188
4189        try {
4190            pp.collectCertificates(pkg, parseFlags);
4191            pp.collectManifestDigest(pkg);
4192        } catch (PackageParserException e) {
4193            throw PackageManagerException.from(e);
4194        }
4195    }
4196
4197    /*
4198     *  Scan a package and return the newly parsed package.
4199     *  Returns null in case of errors and the error code is stored in mLastScanError
4200     */
4201    private PackageParser.Package scanPackageLI(File scanFile, int parseFlags, int scanFlags,
4202            long currentTime, UserHandle user) throws PackageManagerException {
4203        if (DEBUG_INSTALL) Slog.d(TAG, "Parsing: " + scanFile);
4204        parseFlags |= mDefParseFlags;
4205        PackageParser pp = new PackageParser();
4206        pp.setSeparateProcesses(mSeparateProcesses);
4207        pp.setOnlyCoreApps(mOnlyCore);
4208        pp.setDisplayMetrics(mMetrics);
4209
4210        if ((scanFlags & SCAN_TRUSTED_OVERLAY) != 0) {
4211            parseFlags |= PackageParser.PARSE_TRUSTED_OVERLAY;
4212        }
4213
4214        final PackageParser.Package pkg;
4215        try {
4216            pkg = pp.parsePackage(scanFile, parseFlags);
4217        } catch (PackageParserException e) {
4218            throw PackageManagerException.from(e);
4219        }
4220
4221        PackageSetting ps = null;
4222        PackageSetting updatedPkg;
4223        // reader
4224        synchronized (mPackages) {
4225            // Look to see if we already know about this package.
4226            String oldName = mSettings.mRenamedPackages.get(pkg.packageName);
4227            if (pkg.mOriginalPackages != null && pkg.mOriginalPackages.contains(oldName)) {
4228                // This package has been renamed to its original name.  Let's
4229                // use that.
4230                ps = mSettings.peekPackageLPr(oldName);
4231            }
4232            // If there was no original package, see one for the real package name.
4233            if (ps == null) {
4234                ps = mSettings.peekPackageLPr(pkg.packageName);
4235            }
4236            // Check to see if this package could be hiding/updating a system
4237            // package.  Must look for it either under the original or real
4238            // package name depending on our state.
4239            updatedPkg = mSettings.getDisabledSystemPkgLPr(ps != null ? ps.name : pkg.packageName);
4240            if (DEBUG_INSTALL && updatedPkg != null) Slog.d(TAG, "updatedPkg = " + updatedPkg);
4241        }
4242        boolean updatedPkgBetter = false;
4243        // First check if this is a system package that may involve an update
4244        if (updatedPkg != null && (parseFlags&PackageParser.PARSE_IS_SYSTEM) != 0) {
4245            if (ps != null && !ps.codePath.equals(scanFile)) {
4246                // The path has changed from what was last scanned...  check the
4247                // version of the new path against what we have stored to determine
4248                // what to do.
4249                if (DEBUG_INSTALL) Slog.d(TAG, "Path changing from " + ps.codePath);
4250                if (pkg.mVersionCode < ps.versionCode) {
4251                    // The system package has been updated and the code path does not match
4252                    // Ignore entry. Skip it.
4253                    logCriticalInfo(Log.INFO, "Package " + ps.name + " at " + scanFile
4254                            + " ignored: updated version " + ps.versionCode
4255                            + " better than this " + pkg.mVersionCode);
4256                    if (!updatedPkg.codePath.equals(scanFile)) {
4257                        Slog.w(PackageManagerService.TAG, "Code path for hidden system pkg : "
4258                                + ps.name + " changing from " + updatedPkg.codePathString
4259                                + " to " + scanFile);
4260                        updatedPkg.codePath = scanFile;
4261                        updatedPkg.codePathString = scanFile.toString();
4262                        // This is the point at which we know that the system-disk APK
4263                        // for this package has moved during a reboot (e.g. due to an OTA),
4264                        // so we need to reevaluate it for privilege policy.
4265                        if (locationIsPrivileged(scanFile)) {
4266                            updatedPkg.pkgFlags |= ApplicationInfo.FLAG_PRIVILEGED;
4267                        }
4268                    }
4269                    updatedPkg.pkg = pkg;
4270                    throw new PackageManagerException(INSTALL_FAILED_DUPLICATE_PACKAGE, null);
4271                } else {
4272                    // The current app on the system partition is better than
4273                    // what we have updated to on the data partition; switch
4274                    // back to the system partition version.
4275                    // At this point, its safely assumed that package installation for
4276                    // apps in system partition will go through. If not there won't be a working
4277                    // version of the app
4278                    // writer
4279                    synchronized (mPackages) {
4280                        // Just remove the loaded entries from package lists.
4281                        mPackages.remove(ps.name);
4282                    }
4283
4284                    logCriticalInfo(Log.WARN, "Package " + ps.name + " at " + scanFile
4285                            + " reverting from " + ps.codePathString
4286                            + ": new version " + pkg.mVersionCode
4287                            + " better than installed " + ps.versionCode);
4288
4289                    InstallArgs args = createInstallArgsForExisting(packageFlagsToInstallFlags(ps),
4290                            ps.codePathString, ps.resourcePathString, ps.legacyNativeLibraryPathString,
4291                            getAppDexInstructionSets(ps));
4292                    synchronized (mInstallLock) {
4293                        args.cleanUpResourcesLI();
4294                    }
4295                    synchronized (mPackages) {
4296                        mSettings.enableSystemPackageLPw(ps.name);
4297                    }
4298                    updatedPkgBetter = true;
4299                }
4300            }
4301        }
4302
4303        if (updatedPkg != null) {
4304            // An updated system app will not have the PARSE_IS_SYSTEM flag set
4305            // initially
4306            parseFlags |= PackageParser.PARSE_IS_SYSTEM;
4307
4308            // An updated privileged app will not have the PARSE_IS_PRIVILEGED
4309            // flag set initially
4310            if ((updatedPkg.pkgFlags & ApplicationInfo.FLAG_PRIVILEGED) != 0) {
4311                parseFlags |= PackageParser.PARSE_IS_PRIVILEGED;
4312            }
4313        }
4314
4315        // Verify certificates against what was last scanned
4316        collectCertificatesLI(pp, ps, pkg, scanFile, parseFlags);
4317
4318        /*
4319         * A new system app appeared, but we already had a non-system one of the
4320         * same name installed earlier.
4321         */
4322        boolean shouldHideSystemApp = false;
4323        if (updatedPkg == null && ps != null
4324                && (parseFlags & PackageParser.PARSE_IS_SYSTEM_DIR) != 0 && !isSystemApp(ps)) {
4325            /*
4326             * Check to make sure the signatures match first. If they don't,
4327             * wipe the installed application and its data.
4328             */
4329            if (compareSignatures(ps.signatures.mSignatures, pkg.mSignatures)
4330                    != PackageManager.SIGNATURE_MATCH) {
4331                logCriticalInfo(Log.WARN, "Package " + ps.name + " appeared on system, but"
4332                        + " signatures don't match existing userdata copy; removing");
4333                deletePackageLI(pkg.packageName, null, true, null, null, 0, null, false);
4334                ps = null;
4335            } else {
4336                /*
4337                 * If the newly-added system app is an older version than the
4338                 * already installed version, hide it. It will be scanned later
4339                 * and re-added like an update.
4340                 */
4341                if (pkg.mVersionCode < ps.versionCode) {
4342                    shouldHideSystemApp = true;
4343                    logCriticalInfo(Log.INFO, "Package " + ps.name + " appeared at " + scanFile
4344                            + " but new version " + pkg.mVersionCode + " better than installed "
4345                            + ps.versionCode + "; hiding system");
4346                } else {
4347                    /*
4348                     * The newly found system app is a newer version that the
4349                     * one previously installed. Simply remove the
4350                     * already-installed application and replace it with our own
4351                     * while keeping the application data.
4352                     */
4353                    logCriticalInfo(Log.WARN, "Package " + ps.name + " at " + scanFile
4354                            + " reverting from " + ps.codePathString + ": new version "
4355                            + pkg.mVersionCode + " better than installed " + ps.versionCode);
4356                    InstallArgs args = createInstallArgsForExisting(packageFlagsToInstallFlags(ps),
4357                            ps.codePathString, ps.resourcePathString, ps.legacyNativeLibraryPathString,
4358                            getAppDexInstructionSets(ps));
4359                    synchronized (mInstallLock) {
4360                        args.cleanUpResourcesLI();
4361                    }
4362                }
4363            }
4364        }
4365
4366        // The apk is forward locked (not public) if its code and resources
4367        // are kept in different files. (except for app in either system or
4368        // vendor path).
4369        // TODO grab this value from PackageSettings
4370        if ((parseFlags & PackageParser.PARSE_IS_SYSTEM_DIR) == 0) {
4371            if (ps != null && !ps.codePath.equals(ps.resourcePath)) {
4372                parseFlags |= PackageParser.PARSE_FORWARD_LOCK;
4373            }
4374        }
4375
4376        // TODO: extend to support forward-locked splits
4377        String resourcePath = null;
4378        String baseResourcePath = null;
4379        if ((parseFlags & PackageParser.PARSE_FORWARD_LOCK) != 0 && !updatedPkgBetter) {
4380            if (ps != null && ps.resourcePathString != null) {
4381                resourcePath = ps.resourcePathString;
4382                baseResourcePath = ps.resourcePathString;
4383            } else {
4384                // Should not happen at all. Just log an error.
4385                Slog.e(TAG, "Resource path not set for pkg : " + pkg.packageName);
4386            }
4387        } else {
4388            resourcePath = pkg.codePath;
4389            baseResourcePath = pkg.baseCodePath;
4390        }
4391
4392        // Set application objects path explicitly.
4393        pkg.applicationInfo.setCodePath(pkg.codePath);
4394        pkg.applicationInfo.setBaseCodePath(pkg.baseCodePath);
4395        pkg.applicationInfo.setSplitCodePaths(pkg.splitCodePaths);
4396        pkg.applicationInfo.setResourcePath(resourcePath);
4397        pkg.applicationInfo.setBaseResourcePath(baseResourcePath);
4398        pkg.applicationInfo.setSplitResourcePaths(pkg.splitCodePaths);
4399
4400        // Note that we invoke the following method only if we are about to unpack an application
4401        PackageParser.Package scannedPkg = scanPackageLI(pkg, parseFlags, scanFlags
4402                | SCAN_UPDATE_SIGNATURE, currentTime, user);
4403
4404        /*
4405         * If the system app should be overridden by a previously installed
4406         * data, hide the system app now and let the /data/app scan pick it up
4407         * again.
4408         */
4409        if (shouldHideSystemApp) {
4410            synchronized (mPackages) {
4411                /*
4412                 * We have to grant systems permissions before we hide, because
4413                 * grantPermissions will assume the package update is trying to
4414                 * expand its permissions.
4415                 */
4416                grantPermissionsLPw(pkg, true, pkg.packageName);
4417                mSettings.disableSystemPackageLPw(pkg.packageName);
4418            }
4419        }
4420
4421        return scannedPkg;
4422    }
4423
4424    private static String fixProcessName(String defProcessName,
4425            String processName, int uid) {
4426        if (processName == null) {
4427            return defProcessName;
4428        }
4429        return processName;
4430    }
4431
4432    private void verifySignaturesLP(PackageSetting pkgSetting, PackageParser.Package pkg)
4433            throws PackageManagerException {
4434        if (pkgSetting.signatures.mSignatures != null) {
4435            // Already existing package. Make sure signatures match
4436            boolean match = compareSignatures(pkgSetting.signatures.mSignatures, pkg.mSignatures)
4437                    == PackageManager.SIGNATURE_MATCH;
4438            if (!match) {
4439                match = compareSignaturesCompat(pkgSetting.signatures, pkg)
4440                        == PackageManager.SIGNATURE_MATCH;
4441            }
4442            if (!match) {
4443                throw new PackageManagerException(INSTALL_FAILED_UPDATE_INCOMPATIBLE, "Package "
4444                        + pkg.packageName + " signatures do not match the "
4445                        + "previously installed version; ignoring!");
4446            }
4447        }
4448
4449        // Check for shared user signatures
4450        if (pkgSetting.sharedUser != null && pkgSetting.sharedUser.signatures.mSignatures != null) {
4451            // Already existing package. Make sure signatures match
4452            boolean match = compareSignatures(pkgSetting.sharedUser.signatures.mSignatures,
4453                    pkg.mSignatures) == PackageManager.SIGNATURE_MATCH;
4454            if (!match) {
4455                match = compareSignaturesCompat(pkgSetting.sharedUser.signatures, pkg)
4456                        == PackageManager.SIGNATURE_MATCH;
4457            }
4458            if (!match) {
4459                throw new PackageManagerException(INSTALL_FAILED_SHARED_USER_INCOMPATIBLE,
4460                        "Package " + pkg.packageName
4461                        + " has no signatures that match those in shared user "
4462                        + pkgSetting.sharedUser.name + "; ignoring!");
4463            }
4464        }
4465    }
4466
4467    /**
4468     * Enforces that only the system UID or root's UID can call a method exposed
4469     * via Binder.
4470     *
4471     * @param message used as message if SecurityException is thrown
4472     * @throws SecurityException if the caller is not system or root
4473     */
4474    private static final void enforceSystemOrRoot(String message) {
4475        final int uid = Binder.getCallingUid();
4476        if (uid != Process.SYSTEM_UID && uid != 0) {
4477            throw new SecurityException(message);
4478        }
4479    }
4480
4481    @Override
4482    public void performBootDexOpt() {
4483        enforceSystemOrRoot("Only the system can request dexopt be performed");
4484
4485        final ArraySet<PackageParser.Package> pkgs;
4486        synchronized (mPackages) {
4487            pkgs = mDeferredDexOpt;
4488            mDeferredDexOpt = null;
4489        }
4490
4491        if (pkgs != null) {
4492            // Sort apps by importance for dexopt ordering. Important apps are given more priority
4493            // in case the device runs out of space.
4494            ArrayList<PackageParser.Package> sortedPkgs = new ArrayList<PackageParser.Package>();
4495            // Give priority to core apps.
4496            for (Iterator<PackageParser.Package> it = pkgs.iterator(); it.hasNext();) {
4497                PackageParser.Package pkg = it.next();
4498                if (pkg.coreApp) {
4499                    if (DEBUG_DEXOPT) {
4500                        Log.i(TAG, "Adding core app " + sortedPkgs.size() + ": " + pkg.packageName);
4501                    }
4502                    sortedPkgs.add(pkg);
4503                    it.remove();
4504                }
4505            }
4506            // Give priority to system apps that listen for pre boot complete.
4507            Intent intent = new Intent(Intent.ACTION_PRE_BOOT_COMPLETED);
4508            ArraySet<String> pkgNames = getPackageNamesForIntent(intent);
4509            for (Iterator<PackageParser.Package> it = pkgs.iterator(); it.hasNext();) {
4510                PackageParser.Package pkg = it.next();
4511                if (pkgNames.contains(pkg.packageName)) {
4512                    if (DEBUG_DEXOPT) {
4513                        Log.i(TAG, "Adding pre boot system app " + sortedPkgs.size() + ": " + pkg.packageName);
4514                    }
4515                    sortedPkgs.add(pkg);
4516                    it.remove();
4517                }
4518            }
4519            // Give priority to system apps.
4520            for (Iterator<PackageParser.Package> it = pkgs.iterator(); it.hasNext();) {
4521                PackageParser.Package pkg = it.next();
4522                if (isSystemApp(pkg) && !isUpdatedSystemApp(pkg)) {
4523                    if (DEBUG_DEXOPT) {
4524                        Log.i(TAG, "Adding system app " + sortedPkgs.size() + ": " + pkg.packageName);
4525                    }
4526                    sortedPkgs.add(pkg);
4527                    it.remove();
4528                }
4529            }
4530            // Give priority to updated system apps.
4531            for (Iterator<PackageParser.Package> it = pkgs.iterator(); it.hasNext();) {
4532                PackageParser.Package pkg = it.next();
4533                if (isUpdatedSystemApp(pkg)) {
4534                    if (DEBUG_DEXOPT) {
4535                        Log.i(TAG, "Adding updated system app " + sortedPkgs.size() + ": " + pkg.packageName);
4536                    }
4537                    sortedPkgs.add(pkg);
4538                    it.remove();
4539                }
4540            }
4541            // Give priority to apps that listen for boot complete.
4542            intent = new Intent(Intent.ACTION_BOOT_COMPLETED);
4543            pkgNames = getPackageNamesForIntent(intent);
4544            for (Iterator<PackageParser.Package> it = pkgs.iterator(); it.hasNext();) {
4545                PackageParser.Package pkg = it.next();
4546                if (pkgNames.contains(pkg.packageName)) {
4547                    if (DEBUG_DEXOPT) {
4548                        Log.i(TAG, "Adding boot app " + sortedPkgs.size() + ": " + pkg.packageName);
4549                    }
4550                    sortedPkgs.add(pkg);
4551                    it.remove();
4552                }
4553            }
4554            // Filter out packages that aren't recently used.
4555            filterRecentlyUsedApps(pkgs);
4556            // Add all remaining apps.
4557            for (PackageParser.Package pkg : pkgs) {
4558                if (DEBUG_DEXOPT) {
4559                    Log.i(TAG, "Adding app " + sortedPkgs.size() + ": " + pkg.packageName);
4560                }
4561                sortedPkgs.add(pkg);
4562            }
4563
4564            int i = 0;
4565            int total = sortedPkgs.size();
4566            File dataDir = Environment.getDataDirectory();
4567            long lowThreshold = StorageManager.from(mContext).getStorageLowBytes(dataDir);
4568            if (lowThreshold == 0) {
4569                throw new IllegalStateException("Invalid low memory threshold");
4570            }
4571            for (PackageParser.Package pkg : sortedPkgs) {
4572                long usableSpace = dataDir.getUsableSpace();
4573                if (usableSpace < lowThreshold) {
4574                    Log.w(TAG, "Not running dexopt on remaining apps due to low memory: " + usableSpace);
4575                    break;
4576                }
4577                performBootDexOpt(pkg, ++i, total);
4578            }
4579        }
4580    }
4581
4582    private void filterRecentlyUsedApps(ArraySet<PackageParser.Package> pkgs) {
4583        // Filter out packages that aren't recently used.
4584        //
4585        // The exception is first boot of a non-eng device (aka !mLazyDexOpt), which
4586        // should do a full dexopt.
4587        if (mLazyDexOpt || (!isFirstBoot() && mPackageUsage.isHistoricalPackageUsageAvailable())) {
4588            int total = pkgs.size();
4589            int skipped = 0;
4590            long now = System.currentTimeMillis();
4591            for (Iterator<PackageParser.Package> i = pkgs.iterator(); i.hasNext();) {
4592                PackageParser.Package pkg = i.next();
4593                long then = pkg.mLastPackageUsageTimeInMills;
4594                if (then + mDexOptLRUThresholdInMills < now) {
4595                    if (DEBUG_DEXOPT) {
4596                        Log.i(TAG, "Skipping dexopt of " + pkg.packageName + " last resumed: " +
4597                              ((then == 0) ? "never" : new Date(then)));
4598                    }
4599                    i.remove();
4600                    skipped++;
4601                }
4602            }
4603            if (DEBUG_DEXOPT) {
4604                Log.i(TAG, "Skipped optimizing " + skipped + " of " + total);
4605            }
4606        }
4607    }
4608
4609    private ArraySet<String> getPackageNamesForIntent(Intent intent) {
4610        List<ResolveInfo> ris = null;
4611        try {
4612            ris = AppGlobals.getPackageManager().queryIntentReceivers(
4613                    intent, null, 0, UserHandle.USER_OWNER);
4614        } catch (RemoteException e) {
4615        }
4616        ArraySet<String> pkgNames = new ArraySet<String>();
4617        if (ris != null) {
4618            for (ResolveInfo ri : ris) {
4619                pkgNames.add(ri.activityInfo.packageName);
4620            }
4621        }
4622        return pkgNames;
4623    }
4624
4625    private void performBootDexOpt(PackageParser.Package pkg, int curr, int total) {
4626        if (DEBUG_DEXOPT) {
4627            Log.i(TAG, "Optimizing app " + curr + " of " + total + ": " + pkg.packageName);
4628        }
4629        if (!isFirstBoot()) {
4630            try {
4631                ActivityManagerNative.getDefault().showBootMessage(
4632                        mContext.getResources().getString(R.string.android_upgrading_apk,
4633                                curr, total), true);
4634            } catch (RemoteException e) {
4635            }
4636        }
4637        PackageParser.Package p = pkg;
4638        synchronized (mInstallLock) {
4639            performDexOptLI(p, null /* instruction sets */, false /* force dex */,
4640                            false /* defer */, true /* include dependencies */);
4641        }
4642    }
4643
4644    @Override
4645    public boolean performDexOptIfNeeded(String packageName, String instructionSet) {
4646        return performDexOpt(packageName, instructionSet, false);
4647    }
4648
4649    private static String getPrimaryInstructionSet(ApplicationInfo info) {
4650        if (info.primaryCpuAbi == null) {
4651            return getPreferredInstructionSet();
4652        }
4653
4654        return VMRuntime.getInstructionSet(info.primaryCpuAbi);
4655    }
4656
4657    public boolean performDexOpt(String packageName, String instructionSet, boolean backgroundDexopt) {
4658        boolean dexopt = mLazyDexOpt || backgroundDexopt;
4659        boolean updateUsage = !backgroundDexopt;  // Don't update usage if this is just a backgroundDexopt
4660        if (!dexopt && !updateUsage) {
4661            // We aren't going to dexopt or update usage, so bail early.
4662            return false;
4663        }
4664        PackageParser.Package p;
4665        final String targetInstructionSet;
4666        synchronized (mPackages) {
4667            p = mPackages.get(packageName);
4668            if (p == null) {
4669                return false;
4670            }
4671            if (updateUsage) {
4672                p.mLastPackageUsageTimeInMills = System.currentTimeMillis();
4673            }
4674            mPackageUsage.write(false);
4675            if (!dexopt) {
4676                // We aren't going to dexopt, so bail early.
4677                return false;
4678            }
4679
4680            targetInstructionSet = instructionSet != null ? instructionSet :
4681                    getPrimaryInstructionSet(p.applicationInfo);
4682            if (p.mDexOptPerformed.contains(targetInstructionSet)) {
4683                return false;
4684            }
4685        }
4686
4687        synchronized (mInstallLock) {
4688            final String[] instructionSets = new String[] { targetInstructionSet };
4689            return performDexOptLI(p, instructionSets, false /* force dex */, false /* defer */,
4690                    true /* include dependencies */) == DEX_OPT_PERFORMED;
4691        }
4692    }
4693
4694    public ArraySet<String> getPackagesThatNeedDexOpt() {
4695        ArraySet<String> pkgs = null;
4696        synchronized (mPackages) {
4697            for (PackageParser.Package p : mPackages.values()) {
4698                if (DEBUG_DEXOPT) {
4699                    Log.i(TAG, p.packageName + " mDexOptPerformed=" + p.mDexOptPerformed.toArray());
4700                }
4701                if (!p.mDexOptPerformed.isEmpty()) {
4702                    continue;
4703                }
4704                if (pkgs == null) {
4705                    pkgs = new ArraySet<String>();
4706                }
4707                pkgs.add(p.packageName);
4708            }
4709        }
4710        return pkgs;
4711    }
4712
4713    public void shutdown() {
4714        mPackageUsage.write(true);
4715    }
4716
4717    private void performDexOptLibsLI(ArrayList<String> libs, String[] instructionSets,
4718             boolean forceDex, boolean defer, ArraySet<String> done) {
4719        for (int i=0; i<libs.size(); i++) {
4720            PackageParser.Package libPkg;
4721            String libName;
4722            synchronized (mPackages) {
4723                libName = libs.get(i);
4724                SharedLibraryEntry lib = mSharedLibraries.get(libName);
4725                if (lib != null && lib.apk != null) {
4726                    libPkg = mPackages.get(lib.apk);
4727                } else {
4728                    libPkg = null;
4729                }
4730            }
4731            if (libPkg != null && !done.contains(libName)) {
4732                performDexOptLI(libPkg, instructionSets, forceDex, defer, done);
4733            }
4734        }
4735    }
4736
4737    static final int DEX_OPT_SKIPPED = 0;
4738    static final int DEX_OPT_PERFORMED = 1;
4739    static final int DEX_OPT_DEFERRED = 2;
4740    static final int DEX_OPT_FAILED = -1;
4741
4742    private int performDexOptLI(PackageParser.Package pkg, String[] targetInstructionSets,
4743            boolean forceDex, boolean defer, ArraySet<String> done) {
4744        final String[] instructionSets = targetInstructionSets != null ?
4745                targetInstructionSets : getAppDexInstructionSets(pkg.applicationInfo);
4746
4747        if (done != null) {
4748            done.add(pkg.packageName);
4749            if (pkg.usesLibraries != null) {
4750                performDexOptLibsLI(pkg.usesLibraries, instructionSets, forceDex, defer, done);
4751            }
4752            if (pkg.usesOptionalLibraries != null) {
4753                performDexOptLibsLI(pkg.usesOptionalLibraries, instructionSets, forceDex, defer, done);
4754            }
4755        }
4756
4757        if ((pkg.applicationInfo.flags & ApplicationInfo.FLAG_HAS_CODE) == 0) {
4758            return DEX_OPT_SKIPPED;
4759        }
4760
4761        final boolean vmSafeMode = (pkg.applicationInfo.flags & ApplicationInfo.FLAG_VM_SAFE_MODE) != 0;
4762
4763        final List<String> paths = pkg.getAllCodePathsExcludingResourceOnly();
4764        boolean performedDexOpt = false;
4765        // There are three basic cases here:
4766        // 1.) we need to dexopt, either because we are forced or it is needed
4767        // 2.) we are defering a needed dexopt
4768        // 3.) we are skipping an unneeded dexopt
4769        final String[] dexCodeInstructionSets = getDexCodeInstructionSets(instructionSets);
4770        for (String dexCodeInstructionSet : dexCodeInstructionSets) {
4771            if (!forceDex && pkg.mDexOptPerformed.contains(dexCodeInstructionSet)) {
4772                continue;
4773            }
4774
4775            for (String path : paths) {
4776                try {
4777                    // This will return DEXOPT_NEEDED if we either cannot find any odex file for this
4778                    // patckage or the one we find does not match the image checksum (i.e. it was
4779                    // compiled against an old image). It will return PATCHOAT_NEEDED if we can find a
4780                    // odex file and it matches the checksum of the image but not its base address,
4781                    // meaning we need to move it.
4782                    final byte isDexOptNeeded = DexFile.isDexOptNeededInternal(path,
4783                            pkg.packageName, dexCodeInstructionSet, defer);
4784                    if (forceDex || (!defer && isDexOptNeeded == DexFile.DEXOPT_NEEDED)) {
4785                        Log.i(TAG, "Running dexopt on: " + path + " pkg="
4786                                + pkg.applicationInfo.packageName + " isa=" + dexCodeInstructionSet
4787                                + " vmSafeMode=" + vmSafeMode);
4788                        final int sharedGid = UserHandle.getSharedAppGid(pkg.applicationInfo.uid);
4789                        final int ret = mInstaller.dexopt(path, sharedGid, !isForwardLocked(pkg),
4790                                pkg.packageName, dexCodeInstructionSet, vmSafeMode);
4791
4792                        if (ret < 0) {
4793                            // Don't bother running dexopt again if we failed, it will probably
4794                            // just result in an error again. Also, don't bother dexopting for other
4795                            // paths & ISAs.
4796                            return DEX_OPT_FAILED;
4797                        }
4798
4799                        performedDexOpt = true;
4800                    } else if (!defer && isDexOptNeeded == DexFile.PATCHOAT_NEEDED) {
4801                        Log.i(TAG, "Running patchoat on: " + pkg.applicationInfo.packageName);
4802                        final int sharedGid = UserHandle.getSharedAppGid(pkg.applicationInfo.uid);
4803                        final int ret = mInstaller.patchoat(path, sharedGid, !isForwardLocked(pkg),
4804                                pkg.packageName, dexCodeInstructionSet);
4805
4806                        if (ret < 0) {
4807                            // Don't bother running patchoat again if we failed, it will probably
4808                            // just result in an error again. Also, don't bother dexopting for other
4809                            // paths & ISAs.
4810                            return DEX_OPT_FAILED;
4811                        }
4812
4813                        performedDexOpt = true;
4814                    }
4815
4816                    // We're deciding to defer a needed dexopt. Don't bother dexopting for other
4817                    // paths and instruction sets. We'll deal with them all together when we process
4818                    // our list of deferred dexopts.
4819                    if (defer && isDexOptNeeded != DexFile.UP_TO_DATE) {
4820                        if (mDeferredDexOpt == null) {
4821                            mDeferredDexOpt = new ArraySet<PackageParser.Package>();
4822                        }
4823                        mDeferredDexOpt.add(pkg);
4824                        return DEX_OPT_DEFERRED;
4825                    }
4826                } catch (FileNotFoundException e) {
4827                    Slog.w(TAG, "Apk not found for dexopt: " + path);
4828                    return DEX_OPT_FAILED;
4829                } catch (IOException e) {
4830                    Slog.w(TAG, "IOException reading apk: " + path, e);
4831                    return DEX_OPT_FAILED;
4832                } catch (StaleDexCacheError e) {
4833                    Slog.w(TAG, "StaleDexCacheError when reading apk: " + path, e);
4834                    return DEX_OPT_FAILED;
4835                } catch (Exception e) {
4836                    Slog.w(TAG, "Exception when doing dexopt : ", e);
4837                    return DEX_OPT_FAILED;
4838                }
4839            }
4840
4841            // At this point we haven't failed dexopt and we haven't deferred dexopt. We must
4842            // either have either succeeded dexopt, or have had isDexOptNeededInternal tell us
4843            // it isn't required. We therefore mark that this package doesn't need dexopt unless
4844            // it's forced. performedDexOpt will tell us whether we performed dex-opt or skipped
4845            // it.
4846            pkg.mDexOptPerformed.add(dexCodeInstructionSet);
4847        }
4848
4849        // If we've gotten here, we're sure that no error occurred and that we haven't
4850        // deferred dex-opt. We've either dex-opted one more paths or instruction sets or
4851        // we've skipped all of them because they are up to date. In both cases this
4852        // package doesn't need dexopt any longer.
4853        return performedDexOpt ? DEX_OPT_PERFORMED : DEX_OPT_SKIPPED;
4854    }
4855
4856    private static String[] getAppDexInstructionSets(ApplicationInfo info) {
4857        if (info.primaryCpuAbi != null) {
4858            if (info.secondaryCpuAbi != null) {
4859                return new String[] {
4860                        VMRuntime.getInstructionSet(info.primaryCpuAbi),
4861                        VMRuntime.getInstructionSet(info.secondaryCpuAbi) };
4862            } else {
4863                return new String[] {
4864                        VMRuntime.getInstructionSet(info.primaryCpuAbi) };
4865            }
4866        }
4867
4868        return new String[] { getPreferredInstructionSet() };
4869    }
4870
4871    private static String[] getAppDexInstructionSets(PackageSetting ps) {
4872        if (ps.primaryCpuAbiString != null) {
4873            if (ps.secondaryCpuAbiString != null) {
4874                return new String[] {
4875                        VMRuntime.getInstructionSet(ps.primaryCpuAbiString),
4876                        VMRuntime.getInstructionSet(ps.secondaryCpuAbiString) };
4877            } else {
4878                return new String[] {
4879                        VMRuntime.getInstructionSet(ps.primaryCpuAbiString) };
4880            }
4881        }
4882
4883        return new String[] { getPreferredInstructionSet() };
4884    }
4885
4886    private static String getPreferredInstructionSet() {
4887        if (sPreferredInstructionSet == null) {
4888            sPreferredInstructionSet = VMRuntime.getInstructionSet(Build.SUPPORTED_ABIS[0]);
4889        }
4890
4891        return sPreferredInstructionSet;
4892    }
4893
4894    private static List<String> getAllInstructionSets() {
4895        final String[] allAbis = Build.SUPPORTED_ABIS;
4896        final List<String> allInstructionSets = new ArrayList<String>(allAbis.length);
4897
4898        for (String abi : allAbis) {
4899            final String instructionSet = VMRuntime.getInstructionSet(abi);
4900            if (!allInstructionSets.contains(instructionSet)) {
4901                allInstructionSets.add(instructionSet);
4902            }
4903        }
4904
4905        return allInstructionSets;
4906    }
4907
4908    /**
4909     * Returns the instruction set that should be used to compile dex code. In the presence of
4910     * a native bridge this might be different than the one shared libraries use.
4911     */
4912    private static String getDexCodeInstructionSet(String sharedLibraryIsa) {
4913        String dexCodeIsa = SystemProperties.get("ro.dalvik.vm.isa." + sharedLibraryIsa);
4914        return (dexCodeIsa.isEmpty() ? sharedLibraryIsa : dexCodeIsa);
4915    }
4916
4917    private static String[] getDexCodeInstructionSets(String[] instructionSets) {
4918        ArraySet<String> dexCodeInstructionSets = new ArraySet<String>(instructionSets.length);
4919        for (String instructionSet : instructionSets) {
4920            dexCodeInstructionSets.add(getDexCodeInstructionSet(instructionSet));
4921        }
4922        return dexCodeInstructionSets.toArray(new String[dexCodeInstructionSets.size()]);
4923    }
4924
4925    /**
4926     * Returns deduplicated list of supported instructions for dex code.
4927     */
4928    public static String[] getAllDexCodeInstructionSets() {
4929        String[] supportedInstructionSets = new String[Build.SUPPORTED_ABIS.length];
4930        for (int i = 0; i < supportedInstructionSets.length; i++) {
4931            String abi = Build.SUPPORTED_ABIS[i];
4932            supportedInstructionSets[i] = VMRuntime.getInstructionSet(abi);
4933        }
4934        return getDexCodeInstructionSets(supportedInstructionSets);
4935    }
4936
4937    @Override
4938    public void forceDexOpt(String packageName) {
4939        enforceSystemOrRoot("forceDexOpt");
4940
4941        PackageParser.Package pkg;
4942        synchronized (mPackages) {
4943            pkg = mPackages.get(packageName);
4944            if (pkg == null) {
4945                throw new IllegalArgumentException("Missing package: " + packageName);
4946            }
4947        }
4948
4949        synchronized (mInstallLock) {
4950            final String[] instructionSets = new String[] {
4951                    getPrimaryInstructionSet(pkg.applicationInfo) };
4952            final int res = performDexOptLI(pkg, instructionSets, true, false, true);
4953            if (res != DEX_OPT_PERFORMED) {
4954                throw new IllegalStateException("Failed to dexopt: " + res);
4955            }
4956        }
4957    }
4958
4959    private int performDexOptLI(PackageParser.Package pkg, String[] instructionSets,
4960                                boolean forceDex, boolean defer, boolean inclDependencies) {
4961        ArraySet<String> done;
4962        if (inclDependencies && (pkg.usesLibraries != null || pkg.usesOptionalLibraries != null)) {
4963            done = new ArraySet<String>();
4964            done.add(pkg.packageName);
4965        } else {
4966            done = null;
4967        }
4968        return performDexOptLI(pkg, instructionSets,  forceDex, defer, done);
4969    }
4970
4971    private boolean verifyPackageUpdateLPr(PackageSetting oldPkg, PackageParser.Package newPkg) {
4972        if ((oldPkg.pkgFlags&ApplicationInfo.FLAG_SYSTEM) == 0) {
4973            Slog.w(TAG, "Unable to update from " + oldPkg.name
4974                    + " to " + newPkg.packageName
4975                    + ": old package not in system partition");
4976            return false;
4977        } else if (mPackages.get(oldPkg.name) != null) {
4978            Slog.w(TAG, "Unable to update from " + oldPkg.name
4979                    + " to " + newPkg.packageName
4980                    + ": old package still exists");
4981            return false;
4982        }
4983        return true;
4984    }
4985
4986    File getDataPathForUser(int userId) {
4987        return new File(mUserAppDataDir.getAbsolutePath() + File.separator + userId);
4988    }
4989
4990    private File getDataPathForPackage(String packageName, int userId) {
4991        /*
4992         * Until we fully support multiple users, return the directory we
4993         * previously would have. The PackageManagerTests will need to be
4994         * revised when this is changed back..
4995         */
4996        if (userId == 0) {
4997            return new File(mAppDataDir, packageName);
4998        } else {
4999            return new File(mUserAppDataDir.getAbsolutePath() + File.separator + userId
5000                + File.separator + packageName);
5001        }
5002    }
5003
5004    private int createDataDirsLI(String packageName, int uid, String seinfo) {
5005        int[] users = sUserManager.getUserIds();
5006        int res = mInstaller.install(packageName, uid, uid, seinfo);
5007        if (res < 0) {
5008            return res;
5009        }
5010        for (int user : users) {
5011            if (user != 0) {
5012                res = mInstaller.createUserData(packageName,
5013                        UserHandle.getUid(user, uid), user, seinfo);
5014                if (res < 0) {
5015                    return res;
5016                }
5017            }
5018        }
5019        return res;
5020    }
5021
5022    private int removeDataDirsLI(String packageName) {
5023        int[] users = sUserManager.getUserIds();
5024        int res = 0;
5025        for (int user : users) {
5026            int resInner = mInstaller.remove(packageName, user);
5027            if (resInner < 0) {
5028                res = resInner;
5029            }
5030        }
5031
5032        return res;
5033    }
5034
5035    private int deleteCodeCacheDirsLI(String packageName) {
5036        int[] users = sUserManager.getUserIds();
5037        int res = 0;
5038        for (int user : users) {
5039            int resInner = mInstaller.deleteCodeCacheFiles(packageName, user);
5040            if (resInner < 0) {
5041                res = resInner;
5042            }
5043        }
5044        return res;
5045    }
5046
5047    private void addSharedLibraryLPw(ArraySet<String> usesLibraryFiles, SharedLibraryEntry file,
5048            PackageParser.Package changingLib) {
5049        if (file.path != null) {
5050            usesLibraryFiles.add(file.path);
5051            return;
5052        }
5053        PackageParser.Package p = mPackages.get(file.apk);
5054        if (changingLib != null && changingLib.packageName.equals(file.apk)) {
5055            // If we are doing this while in the middle of updating a library apk,
5056            // then we need to make sure to use that new apk for determining the
5057            // dependencies here.  (We haven't yet finished committing the new apk
5058            // to the package manager state.)
5059            if (p == null || p.packageName.equals(changingLib.packageName)) {
5060                p = changingLib;
5061            }
5062        }
5063        if (p != null) {
5064            usesLibraryFiles.addAll(p.getAllCodePaths());
5065        }
5066    }
5067
5068    private void updateSharedLibrariesLPw(PackageParser.Package pkg,
5069            PackageParser.Package changingLib) throws PackageManagerException {
5070        if (pkg.usesLibraries != null || pkg.usesOptionalLibraries != null) {
5071            final ArraySet<String> usesLibraryFiles = new ArraySet<>();
5072            int N = pkg.usesLibraries != null ? pkg.usesLibraries.size() : 0;
5073            for (int i=0; i<N; i++) {
5074                final SharedLibraryEntry file = mSharedLibraries.get(pkg.usesLibraries.get(i));
5075                if (file == null) {
5076                    throw new PackageManagerException(INSTALL_FAILED_MISSING_SHARED_LIBRARY,
5077                            "Package " + pkg.packageName + " requires unavailable shared library "
5078                            + pkg.usesLibraries.get(i) + "; failing!");
5079                }
5080                addSharedLibraryLPw(usesLibraryFiles, file, changingLib);
5081            }
5082            N = pkg.usesOptionalLibraries != null ? pkg.usesOptionalLibraries.size() : 0;
5083            for (int i=0; i<N; i++) {
5084                final SharedLibraryEntry file = mSharedLibraries.get(pkg.usesOptionalLibraries.get(i));
5085                if (file == null) {
5086                    Slog.w(TAG, "Package " + pkg.packageName
5087                            + " desires unavailable shared library "
5088                            + pkg.usesOptionalLibraries.get(i) + "; ignoring!");
5089                } else {
5090                    addSharedLibraryLPw(usesLibraryFiles, file, changingLib);
5091                }
5092            }
5093            N = usesLibraryFiles.size();
5094            if (N > 0) {
5095                pkg.usesLibraryFiles = usesLibraryFiles.toArray(new String[N]);
5096            } else {
5097                pkg.usesLibraryFiles = null;
5098            }
5099        }
5100    }
5101
5102    private static boolean hasString(List<String> list, List<String> which) {
5103        if (list == null) {
5104            return false;
5105        }
5106        for (int i=list.size()-1; i>=0; i--) {
5107            for (int j=which.size()-1; j>=0; j--) {
5108                if (which.get(j).equals(list.get(i))) {
5109                    return true;
5110                }
5111            }
5112        }
5113        return false;
5114    }
5115
5116    private void updateAllSharedLibrariesLPw() {
5117        for (PackageParser.Package pkg : mPackages.values()) {
5118            try {
5119                updateSharedLibrariesLPw(pkg, null);
5120            } catch (PackageManagerException e) {
5121                Slog.e(TAG, "updateAllSharedLibrariesLPw failed: " + e.getMessage());
5122            }
5123        }
5124    }
5125
5126    private ArrayList<PackageParser.Package> updateAllSharedLibrariesLPw(
5127            PackageParser.Package changingPkg) {
5128        ArrayList<PackageParser.Package> res = null;
5129        for (PackageParser.Package pkg : mPackages.values()) {
5130            if (hasString(pkg.usesLibraries, changingPkg.libraryNames)
5131                    || hasString(pkg.usesOptionalLibraries, changingPkg.libraryNames)) {
5132                if (res == null) {
5133                    res = new ArrayList<PackageParser.Package>();
5134                }
5135                res.add(pkg);
5136                try {
5137                    updateSharedLibrariesLPw(pkg, changingPkg);
5138                } catch (PackageManagerException e) {
5139                    Slog.e(TAG, "updateAllSharedLibrariesLPw failed: " + e.getMessage());
5140                }
5141            }
5142        }
5143        return res;
5144    }
5145
5146    /**
5147     * Derive the value of the {@code cpuAbiOverride} based on the provided
5148     * value and an optional stored value from the package settings.
5149     */
5150    private static String deriveAbiOverride(String abiOverride, PackageSetting settings) {
5151        String cpuAbiOverride = null;
5152
5153        if (NativeLibraryHelper.CLEAR_ABI_OVERRIDE.equals(abiOverride)) {
5154            cpuAbiOverride = null;
5155        } else if (abiOverride != null) {
5156            cpuAbiOverride = abiOverride;
5157        } else if (settings != null) {
5158            cpuAbiOverride = settings.cpuAbiOverrideString;
5159        }
5160
5161        return cpuAbiOverride;
5162    }
5163
5164    private PackageParser.Package scanPackageLI(PackageParser.Package pkg, int parseFlags,
5165            int scanFlags, long currentTime, UserHandle user) throws PackageManagerException {
5166        boolean success = false;
5167        try {
5168            final PackageParser.Package res = scanPackageDirtyLI(pkg, parseFlags, scanFlags,
5169                    currentTime, user);
5170            success = true;
5171            return res;
5172        } finally {
5173            if (!success && (scanFlags & SCAN_DELETE_DATA_ON_FAILURES) != 0) {
5174                removeDataDirsLI(pkg.packageName);
5175            }
5176        }
5177    }
5178
5179    private PackageParser.Package scanPackageDirtyLI(PackageParser.Package pkg, int parseFlags,
5180            int scanFlags, long currentTime, UserHandle user) throws PackageManagerException {
5181        final File scanFile = new File(pkg.codePath);
5182        if (pkg.applicationInfo.getCodePath() == null ||
5183                pkg.applicationInfo.getResourcePath() == null) {
5184            // Bail out. The resource and code paths haven't been set.
5185            throw new PackageManagerException(INSTALL_FAILED_INVALID_APK,
5186                    "Code and resource paths haven't been set correctly");
5187        }
5188
5189        if ((parseFlags&PackageParser.PARSE_IS_SYSTEM) != 0) {
5190            pkg.applicationInfo.flags |= ApplicationInfo.FLAG_SYSTEM;
5191        } else {
5192            // Only allow system apps to be flagged as core apps.
5193            pkg.coreApp = false;
5194        }
5195
5196        if ((parseFlags&PackageParser.PARSE_IS_PRIVILEGED) != 0) {
5197            pkg.applicationInfo.flags |= ApplicationInfo.FLAG_PRIVILEGED;
5198        }
5199
5200        if (mCustomResolverComponentName != null &&
5201                mCustomResolverComponentName.getPackageName().equals(pkg.packageName)) {
5202            setUpCustomResolverActivity(pkg);
5203        }
5204
5205        if (pkg.packageName.equals("android")) {
5206            synchronized (mPackages) {
5207                if (mAndroidApplication != null) {
5208                    Slog.w(TAG, "*************************************************");
5209                    Slog.w(TAG, "Core android package being redefined.  Skipping.");
5210                    Slog.w(TAG, " file=" + scanFile);
5211                    Slog.w(TAG, "*************************************************");
5212                    throw new PackageManagerException(INSTALL_FAILED_DUPLICATE_PACKAGE,
5213                            "Core android package being redefined.  Skipping.");
5214                }
5215
5216                // Set up information for our fall-back user intent resolution activity.
5217                mPlatformPackage = pkg;
5218                pkg.mVersionCode = mSdkVersion;
5219                mAndroidApplication = pkg.applicationInfo;
5220
5221                if (!mResolverReplaced) {
5222                    mResolveActivity.applicationInfo = mAndroidApplication;
5223                    mResolveActivity.name = ResolverActivity.class.getName();
5224                    mResolveActivity.packageName = mAndroidApplication.packageName;
5225                    mResolveActivity.processName = "system:ui";
5226                    mResolveActivity.launchMode = ActivityInfo.LAUNCH_MULTIPLE;
5227                    mResolveActivity.documentLaunchMode = ActivityInfo.DOCUMENT_LAUNCH_NEVER;
5228                    mResolveActivity.flags = ActivityInfo.FLAG_EXCLUDE_FROM_RECENTS;
5229                    mResolveActivity.theme = R.style.Theme_Holo_Dialog_Alert;
5230                    mResolveActivity.exported = true;
5231                    mResolveActivity.enabled = true;
5232                    mResolveInfo.activityInfo = mResolveActivity;
5233                    mResolveInfo.priority = 0;
5234                    mResolveInfo.preferredOrder = 0;
5235                    mResolveInfo.match = 0;
5236                    mResolveComponentName = new ComponentName(
5237                            mAndroidApplication.packageName, mResolveActivity.name);
5238                }
5239            }
5240        }
5241
5242        if (DEBUG_PACKAGE_SCANNING) {
5243            if ((parseFlags & PackageParser.PARSE_CHATTY) != 0)
5244                Log.d(TAG, "Scanning package " + pkg.packageName);
5245        }
5246
5247        if (mPackages.containsKey(pkg.packageName)
5248                || mSharedLibraries.containsKey(pkg.packageName)) {
5249            throw new PackageManagerException(INSTALL_FAILED_DUPLICATE_PACKAGE,
5250                    "Application package " + pkg.packageName
5251                    + " already installed.  Skipping duplicate.");
5252        }
5253
5254        // Initialize package source and resource directories
5255        File destCodeFile = new File(pkg.applicationInfo.getCodePath());
5256        File destResourceFile = new File(pkg.applicationInfo.getResourcePath());
5257
5258        SharedUserSetting suid = null;
5259        PackageSetting pkgSetting = null;
5260
5261        if (!isSystemApp(pkg)) {
5262            // Only system apps can use these features.
5263            pkg.mOriginalPackages = null;
5264            pkg.mRealPackage = null;
5265            pkg.mAdoptPermissions = null;
5266        }
5267
5268        // writer
5269        synchronized (mPackages) {
5270            if (pkg.mSharedUserId != null) {
5271                suid = mSettings.getSharedUserLPw(pkg.mSharedUserId, 0, true);
5272                if (suid == null) {
5273                    throw new PackageManagerException(INSTALL_FAILED_INSUFFICIENT_STORAGE,
5274                            "Creating application package " + pkg.packageName
5275                            + " for shared user failed");
5276                }
5277                if (DEBUG_PACKAGE_SCANNING) {
5278                    if ((parseFlags & PackageParser.PARSE_CHATTY) != 0)
5279                        Log.d(TAG, "Shared UserID " + pkg.mSharedUserId + " (uid=" + suid.userId
5280                                + "): packages=" + suid.packages);
5281                }
5282            }
5283
5284            // Check if we are renaming from an original package name.
5285            PackageSetting origPackage = null;
5286            String realName = null;
5287            if (pkg.mOriginalPackages != null) {
5288                // This package may need to be renamed to a previously
5289                // installed name.  Let's check on that...
5290                final String renamed = mSettings.mRenamedPackages.get(pkg.mRealPackage);
5291                if (pkg.mOriginalPackages.contains(renamed)) {
5292                    // This package had originally been installed as the
5293                    // original name, and we have already taken care of
5294                    // transitioning to the new one.  Just update the new
5295                    // one to continue using the old name.
5296                    realName = pkg.mRealPackage;
5297                    if (!pkg.packageName.equals(renamed)) {
5298                        // Callers into this function may have already taken
5299                        // care of renaming the package; only do it here if
5300                        // it is not already done.
5301                        pkg.setPackageName(renamed);
5302                    }
5303
5304                } else {
5305                    for (int i=pkg.mOriginalPackages.size()-1; i>=0; i--) {
5306                        if ((origPackage = mSettings.peekPackageLPr(
5307                                pkg.mOriginalPackages.get(i))) != null) {
5308                            // We do have the package already installed under its
5309                            // original name...  should we use it?
5310                            if (!verifyPackageUpdateLPr(origPackage, pkg)) {
5311                                // New package is not compatible with original.
5312                                origPackage = null;
5313                                continue;
5314                            } else if (origPackage.sharedUser != null) {
5315                                // Make sure uid is compatible between packages.
5316                                if (!origPackage.sharedUser.name.equals(pkg.mSharedUserId)) {
5317                                    Slog.w(TAG, "Unable to migrate data from " + origPackage.name
5318                                            + " to " + pkg.packageName + ": old uid "
5319                                            + origPackage.sharedUser.name
5320                                            + " differs from " + pkg.mSharedUserId);
5321                                    origPackage = null;
5322                                    continue;
5323                                }
5324                            } else {
5325                                if (DEBUG_UPGRADE) Log.v(TAG, "Renaming new package "
5326                                        + pkg.packageName + " to old name " + origPackage.name);
5327                            }
5328                            break;
5329                        }
5330                    }
5331                }
5332            }
5333
5334            if (mTransferedPackages.contains(pkg.packageName)) {
5335                Slog.w(TAG, "Package " + pkg.packageName
5336                        + " was transferred to another, but its .apk remains");
5337            }
5338
5339            // Just create the setting, don't add it yet. For already existing packages
5340            // the PkgSetting exists already and doesn't have to be created.
5341            pkgSetting = mSettings.getPackageLPw(pkg, origPackage, realName, suid, destCodeFile,
5342                    destResourceFile, pkg.applicationInfo.nativeLibraryRootDir,
5343                    pkg.applicationInfo.primaryCpuAbi,
5344                    pkg.applicationInfo.secondaryCpuAbi,
5345                    pkg.applicationInfo.flags, user, false);
5346            if (pkgSetting == null) {
5347                throw new PackageManagerException(INSTALL_FAILED_INSUFFICIENT_STORAGE,
5348                        "Creating application package " + pkg.packageName + " failed");
5349            }
5350
5351            if (pkgSetting.origPackage != null) {
5352                // If we are first transitioning from an original package,
5353                // fix up the new package's name now.  We need to do this after
5354                // looking up the package under its new name, so getPackageLP
5355                // can take care of fiddling things correctly.
5356                pkg.setPackageName(origPackage.name);
5357
5358                // File a report about this.
5359                String msg = "New package " + pkgSetting.realName
5360                        + " renamed to replace old package " + pkgSetting.name;
5361                reportSettingsProblem(Log.WARN, msg);
5362
5363                // Make a note of it.
5364                mTransferedPackages.add(origPackage.name);
5365
5366                // No longer need to retain this.
5367                pkgSetting.origPackage = null;
5368            }
5369
5370            if (realName != null) {
5371                // Make a note of it.
5372                mTransferedPackages.add(pkg.packageName);
5373            }
5374
5375            if (mSettings.isDisabledSystemPackageLPr(pkg.packageName)) {
5376                pkg.applicationInfo.flags |= ApplicationInfo.FLAG_UPDATED_SYSTEM_APP;
5377            }
5378
5379            if ((parseFlags&PackageParser.PARSE_IS_SYSTEM_DIR) == 0) {
5380                // Check all shared libraries and map to their actual file path.
5381                // We only do this here for apps not on a system dir, because those
5382                // are the only ones that can fail an install due to this.  We
5383                // will take care of the system apps by updating all of their
5384                // library paths after the scan is done.
5385                updateSharedLibrariesLPw(pkg, null);
5386            }
5387
5388            if (mFoundPolicyFile) {
5389                SELinuxMMAC.assignSeinfoValue(pkg);
5390            }
5391
5392            pkg.applicationInfo.uid = pkgSetting.appId;
5393            pkg.mExtras = pkgSetting;
5394            if (!pkgSetting.keySetData.isUsingUpgradeKeySets() || pkgSetting.sharedUser != null) {
5395                try {
5396                    verifySignaturesLP(pkgSetting, pkg);
5397                } catch (PackageManagerException e) {
5398                    if ((parseFlags & PackageParser.PARSE_IS_SYSTEM_DIR) == 0) {
5399                        throw e;
5400                    }
5401                    // The signature has changed, but this package is in the system
5402                    // image...  let's recover!
5403                    pkgSetting.signatures.mSignatures = pkg.mSignatures;
5404                    // However...  if this package is part of a shared user, but it
5405                    // doesn't match the signature of the shared user, let's fail.
5406                    // What this means is that you can't change the signatures
5407                    // associated with an overall shared user, which doesn't seem all
5408                    // that unreasonable.
5409                    if (pkgSetting.sharedUser != null) {
5410                        if (compareSignatures(pkgSetting.sharedUser.signatures.mSignatures,
5411                                              pkg.mSignatures) != PackageManager.SIGNATURE_MATCH) {
5412                            throw new PackageManagerException(
5413                                    INSTALL_PARSE_FAILED_INCONSISTENT_CERTIFICATES,
5414                                            "Signature mismatch for shared user : "
5415                                            + pkgSetting.sharedUser);
5416                        }
5417                    }
5418                    // File a report about this.
5419                    String msg = "System package " + pkg.packageName
5420                        + " signature changed; retaining data.";
5421                    reportSettingsProblem(Log.WARN, msg);
5422                }
5423            } else {
5424                if (!checkUpgradeKeySetLP(pkgSetting, pkg)) {
5425                    throw new PackageManagerException(INSTALL_FAILED_UPDATE_INCOMPATIBLE, "Package "
5426                            + pkg.packageName + " upgrade keys do not match the "
5427                            + "previously installed version");
5428                } else {
5429                    // signatures may have changed as result of upgrade
5430                    pkgSetting.signatures.mSignatures = pkg.mSignatures;
5431                }
5432            }
5433            // Verify that this new package doesn't have any content providers
5434            // that conflict with existing packages.  Only do this if the
5435            // package isn't already installed, since we don't want to break
5436            // things that are installed.
5437            if ((scanFlags & SCAN_NEW_INSTALL) != 0) {
5438                final int N = pkg.providers.size();
5439                int i;
5440                for (i=0; i<N; i++) {
5441                    PackageParser.Provider p = pkg.providers.get(i);
5442                    if (p.info.authority != null) {
5443                        String names[] = p.info.authority.split(";");
5444                        for (int j = 0; j < names.length; j++) {
5445                            if (mProvidersByAuthority.containsKey(names[j])) {
5446                                PackageParser.Provider other = mProvidersByAuthority.get(names[j]);
5447                                final String otherPackageName =
5448                                        ((other != null && other.getComponentName() != null) ?
5449                                                other.getComponentName().getPackageName() : "?");
5450                                throw new PackageManagerException(
5451                                        INSTALL_FAILED_CONFLICTING_PROVIDER,
5452                                                "Can't install because provider name " + names[j]
5453                                                + " (in package " + pkg.applicationInfo.packageName
5454                                                + ") is already used by " + otherPackageName);
5455                            }
5456                        }
5457                    }
5458                }
5459            }
5460
5461            if (pkg.mAdoptPermissions != null) {
5462                // This package wants to adopt ownership of permissions from
5463                // another package.
5464                for (int i = pkg.mAdoptPermissions.size() - 1; i >= 0; i--) {
5465                    final String origName = pkg.mAdoptPermissions.get(i);
5466                    final PackageSetting orig = mSettings.peekPackageLPr(origName);
5467                    if (orig != null) {
5468                        if (verifyPackageUpdateLPr(orig, pkg)) {
5469                            Slog.i(TAG, "Adopting permissions from " + origName + " to "
5470                                    + pkg.packageName);
5471                            mSettings.transferPermissionsLPw(origName, pkg.packageName);
5472                        }
5473                    }
5474                }
5475            }
5476        }
5477
5478        final String pkgName = pkg.packageName;
5479
5480        final long scanFileTime = scanFile.lastModified();
5481        final boolean forceDex = (scanFlags & SCAN_FORCE_DEX) != 0;
5482        pkg.applicationInfo.processName = fixProcessName(
5483                pkg.applicationInfo.packageName,
5484                pkg.applicationInfo.processName,
5485                pkg.applicationInfo.uid);
5486
5487        File dataPath;
5488        if (mPlatformPackage == pkg) {
5489            // The system package is special.
5490            dataPath = new File(Environment.getDataDirectory(), "system");
5491
5492            pkg.applicationInfo.dataDir = dataPath.getPath();
5493
5494        } else {
5495            // This is a normal package, need to make its data directory.
5496            dataPath = getDataPathForPackage(pkg.packageName, 0);
5497
5498            boolean uidError = false;
5499            if (dataPath.exists()) {
5500                int currentUid = 0;
5501                try {
5502                    StructStat stat = Os.stat(dataPath.getPath());
5503                    currentUid = stat.st_uid;
5504                } catch (ErrnoException e) {
5505                    Slog.e(TAG, "Couldn't stat path " + dataPath.getPath(), e);
5506                }
5507
5508                // If we have mismatched owners for the data path, we have a problem.
5509                if (currentUid != pkg.applicationInfo.uid) {
5510                    boolean recovered = false;
5511                    if (currentUid == 0) {
5512                        // The directory somehow became owned by root.  Wow.
5513                        // This is probably because the system was stopped while
5514                        // installd was in the middle of messing with its libs
5515                        // directory.  Ask installd to fix that.
5516                        int ret = mInstaller.fixUid(pkgName, pkg.applicationInfo.uid,
5517                                pkg.applicationInfo.uid);
5518                        if (ret >= 0) {
5519                            recovered = true;
5520                            String msg = "Package " + pkg.packageName
5521                                    + " unexpectedly changed to uid 0; recovered to " +
5522                                    + pkg.applicationInfo.uid;
5523                            reportSettingsProblem(Log.WARN, msg);
5524                        }
5525                    }
5526                    if (!recovered && ((parseFlags&PackageParser.PARSE_IS_SYSTEM) != 0
5527                            || (scanFlags&SCAN_BOOTING) != 0)) {
5528                        // If this is a system app, we can at least delete its
5529                        // current data so the application will still work.
5530                        int ret = removeDataDirsLI(pkgName);
5531                        if (ret >= 0) {
5532                            // TODO: Kill the processes first
5533                            // Old data gone!
5534                            String prefix = (parseFlags&PackageParser.PARSE_IS_SYSTEM) != 0
5535                                    ? "System package " : "Third party package ";
5536                            String msg = prefix + pkg.packageName
5537                                    + " has changed from uid: "
5538                                    + currentUid + " to "
5539                                    + pkg.applicationInfo.uid + "; old data erased";
5540                            reportSettingsProblem(Log.WARN, msg);
5541                            recovered = true;
5542
5543                            // And now re-install the app.
5544                            ret = createDataDirsLI(pkgName, pkg.applicationInfo.uid,
5545                                                   pkg.applicationInfo.seinfo);
5546                            if (ret == -1) {
5547                                // Ack should not happen!
5548                                msg = prefix + pkg.packageName
5549                                        + " could not have data directory re-created after delete.";
5550                                reportSettingsProblem(Log.WARN, msg);
5551                                throw new PackageManagerException(
5552                                        INSTALL_FAILED_INSUFFICIENT_STORAGE, msg);
5553                            }
5554                        }
5555                        if (!recovered) {
5556                            mHasSystemUidErrors = true;
5557                        }
5558                    } else if (!recovered) {
5559                        // If we allow this install to proceed, we will be broken.
5560                        // Abort, abort!
5561                        throw new PackageManagerException(INSTALL_FAILED_UID_CHANGED,
5562                                "scanPackageLI");
5563                    }
5564                    if (!recovered) {
5565                        pkg.applicationInfo.dataDir = "/mismatched_uid/settings_"
5566                            + pkg.applicationInfo.uid + "/fs_"
5567                            + currentUid;
5568                        pkg.applicationInfo.nativeLibraryDir = pkg.applicationInfo.dataDir;
5569                        pkg.applicationInfo.nativeLibraryRootDir = pkg.applicationInfo.dataDir;
5570                        String msg = "Package " + pkg.packageName
5571                                + " has mismatched uid: "
5572                                + currentUid + " on disk, "
5573                                + pkg.applicationInfo.uid + " in settings";
5574                        // writer
5575                        synchronized (mPackages) {
5576                            mSettings.mReadMessages.append(msg);
5577                            mSettings.mReadMessages.append('\n');
5578                            uidError = true;
5579                            if (!pkgSetting.uidError) {
5580                                reportSettingsProblem(Log.ERROR, msg);
5581                            }
5582                        }
5583                    }
5584                }
5585                pkg.applicationInfo.dataDir = dataPath.getPath();
5586                if (mShouldRestoreconData) {
5587                    Slog.i(TAG, "SELinux relabeling of " + pkg.packageName + " issued.");
5588                    mInstaller.restoreconData(pkg.packageName, pkg.applicationInfo.seinfo,
5589                                pkg.applicationInfo.uid);
5590                }
5591            } else {
5592                if (DEBUG_PACKAGE_SCANNING) {
5593                    if ((parseFlags & PackageParser.PARSE_CHATTY) != 0)
5594                        Log.v(TAG, "Want this data dir: " + dataPath);
5595                }
5596                //invoke installer to do the actual installation
5597                int ret = createDataDirsLI(pkgName, pkg.applicationInfo.uid,
5598                                           pkg.applicationInfo.seinfo);
5599                if (ret < 0) {
5600                    // Error from installer
5601                    throw new PackageManagerException(INSTALL_FAILED_INSUFFICIENT_STORAGE,
5602                            "Unable to create data dirs [errorCode=" + ret + "]");
5603                }
5604
5605                if (dataPath.exists()) {
5606                    pkg.applicationInfo.dataDir = dataPath.getPath();
5607                } else {
5608                    Slog.w(TAG, "Unable to create data directory: " + dataPath);
5609                    pkg.applicationInfo.dataDir = null;
5610                }
5611            }
5612
5613            pkgSetting.uidError = uidError;
5614        }
5615
5616        final String path = scanFile.getPath();
5617        final String codePath = pkg.applicationInfo.getCodePath();
5618        final String cpuAbiOverride = deriveAbiOverride(pkg.cpuAbiOverride, pkgSetting);
5619        if (isSystemApp(pkg) && !isUpdatedSystemApp(pkg)) {
5620            setBundledAppAbisAndRoots(pkg, pkgSetting);
5621
5622            // If we haven't found any native libraries for the app, check if it has
5623            // renderscript code. We'll need to force the app to 32 bit if it has
5624            // renderscript bitcode.
5625            if (pkg.applicationInfo.primaryCpuAbi == null
5626                    && pkg.applicationInfo.secondaryCpuAbi == null
5627                    && Build.SUPPORTED_64_BIT_ABIS.length >  0) {
5628                NativeLibraryHelper.Handle handle = null;
5629                try {
5630                    handle = NativeLibraryHelper.Handle.create(scanFile);
5631                    if (NativeLibraryHelper.hasRenderscriptBitcode(handle)) {
5632                        pkg.applicationInfo.primaryCpuAbi = Build.SUPPORTED_32_BIT_ABIS[0];
5633                    }
5634                } catch (IOException ioe) {
5635                    Slog.w(TAG, "Error scanning system app : " + ioe);
5636                } finally {
5637                    IoUtils.closeQuietly(handle);
5638                }
5639            }
5640
5641            setNativeLibraryPaths(pkg);
5642        } else {
5643            // TODO: We can probably be smarter about this stuff. For installed apps,
5644            // we can calculate this information at install time once and for all. For
5645            // system apps, we can probably assume that this information doesn't change
5646            // after the first boot scan. As things stand, we do lots of unnecessary work.
5647
5648            // Give ourselves some initial paths; we'll come back for another
5649            // pass once we've determined ABI below.
5650            setNativeLibraryPaths(pkg);
5651
5652            final boolean isAsec = isForwardLocked(pkg) || isExternal(pkg);
5653            final String nativeLibraryRootStr = pkg.applicationInfo.nativeLibraryRootDir;
5654            final boolean useIsaSpecificSubdirs = pkg.applicationInfo.nativeLibraryRootRequiresIsa;
5655
5656            NativeLibraryHelper.Handle handle = null;
5657            try {
5658                handle = NativeLibraryHelper.Handle.create(scanFile);
5659                // TODO(multiArch): This can be null for apps that didn't go through the
5660                // usual installation process. We can calculate it again, like we
5661                // do during install time.
5662                //
5663                // TODO(multiArch): Why do we need to rescan ASEC apps again ? It seems totally
5664                // unnecessary.
5665                final File nativeLibraryRoot = new File(nativeLibraryRootStr);
5666
5667                // Null out the abis so that they can be recalculated.
5668                pkg.applicationInfo.primaryCpuAbi = null;
5669                pkg.applicationInfo.secondaryCpuAbi = null;
5670                if (isMultiArch(pkg.applicationInfo)) {
5671                    // Warn if we've set an abiOverride for multi-lib packages..
5672                    // By definition, we need to copy both 32 and 64 bit libraries for
5673                    // such packages.
5674                    if (pkg.cpuAbiOverride != null
5675                            && !NativeLibraryHelper.CLEAR_ABI_OVERRIDE.equals(pkg.cpuAbiOverride)) {
5676                        Slog.w(TAG, "Ignoring abiOverride for multi arch application.");
5677                    }
5678
5679                    int abi32 = PackageManager.NO_NATIVE_LIBRARIES;
5680                    int abi64 = PackageManager.NO_NATIVE_LIBRARIES;
5681                    if (Build.SUPPORTED_32_BIT_ABIS.length > 0) {
5682                        if (isAsec) {
5683                            abi32 = NativeLibraryHelper.findSupportedAbi(handle, Build.SUPPORTED_32_BIT_ABIS);
5684                        } else {
5685                            abi32 = NativeLibraryHelper.copyNativeBinariesForSupportedAbi(handle,
5686                                    nativeLibraryRoot, Build.SUPPORTED_32_BIT_ABIS,
5687                                    useIsaSpecificSubdirs);
5688                        }
5689                    }
5690
5691                    maybeThrowExceptionForMultiArchCopy(
5692                            "Error unpackaging 32 bit native libs for multiarch app.", abi32);
5693
5694                    if (Build.SUPPORTED_64_BIT_ABIS.length > 0) {
5695                        if (isAsec) {
5696                            abi64 = NativeLibraryHelper.findSupportedAbi(handle, Build.SUPPORTED_64_BIT_ABIS);
5697                        } else {
5698                            abi64 = NativeLibraryHelper.copyNativeBinariesForSupportedAbi(handle,
5699                                    nativeLibraryRoot, Build.SUPPORTED_64_BIT_ABIS,
5700                                    useIsaSpecificSubdirs);
5701                        }
5702                    }
5703
5704                    maybeThrowExceptionForMultiArchCopy(
5705                            "Error unpackaging 64 bit native libs for multiarch app.", abi64);
5706
5707                    if (abi64 >= 0) {
5708                        pkg.applicationInfo.primaryCpuAbi = Build.SUPPORTED_64_BIT_ABIS[abi64];
5709                    }
5710
5711                    if (abi32 >= 0) {
5712                        final String abi = Build.SUPPORTED_32_BIT_ABIS[abi32];
5713                        if (abi64 >= 0) {
5714                            pkg.applicationInfo.secondaryCpuAbi = abi;
5715                        } else {
5716                            pkg.applicationInfo.primaryCpuAbi = abi;
5717                        }
5718                    }
5719                } else {
5720                    String[] abiList = (cpuAbiOverride != null) ?
5721                            new String[] { cpuAbiOverride } : Build.SUPPORTED_ABIS;
5722
5723                    // Enable gross and lame hacks for apps that are built with old
5724                    // SDK tools. We must scan their APKs for renderscript bitcode and
5725                    // not launch them if it's present. Don't bother checking on devices
5726                    // that don't have 64 bit support.
5727                    boolean needsRenderScriptOverride = false;
5728                    if (Build.SUPPORTED_64_BIT_ABIS.length > 0 && cpuAbiOverride == null &&
5729                            NativeLibraryHelper.hasRenderscriptBitcode(handle)) {
5730                        abiList = Build.SUPPORTED_32_BIT_ABIS;
5731                        needsRenderScriptOverride = true;
5732                    }
5733
5734                    final int copyRet;
5735                    if (isAsec) {
5736                        copyRet = NativeLibraryHelper.findSupportedAbi(handle, abiList);
5737                    } else {
5738                        copyRet = NativeLibraryHelper.copyNativeBinariesForSupportedAbi(handle,
5739                                nativeLibraryRoot, abiList, useIsaSpecificSubdirs);
5740                    }
5741
5742                    if (copyRet < 0 && copyRet != PackageManager.NO_NATIVE_LIBRARIES) {
5743                        throw new PackageManagerException(INSTALL_FAILED_INTERNAL_ERROR,
5744                                "Error unpackaging native libs for app, errorCode=" + copyRet);
5745                    }
5746
5747                    if (copyRet >= 0) {
5748                        pkg.applicationInfo.primaryCpuAbi = abiList[copyRet];
5749                    } else if (copyRet == PackageManager.NO_NATIVE_LIBRARIES && cpuAbiOverride != null) {
5750                        pkg.applicationInfo.primaryCpuAbi = cpuAbiOverride;
5751                    } else if (needsRenderScriptOverride) {
5752                        pkg.applicationInfo.primaryCpuAbi = abiList[0];
5753                    }
5754                }
5755            } catch (IOException ioe) {
5756                Slog.e(TAG, "Unable to get canonical file " + ioe.toString());
5757            } finally {
5758                IoUtils.closeQuietly(handle);
5759            }
5760
5761            // Now that we've calculated the ABIs and determined if it's an internal app,
5762            // we will go ahead and populate the nativeLibraryPath.
5763            setNativeLibraryPaths(pkg);
5764
5765            if (DEBUG_INSTALL) Slog.i(TAG, "Linking native library dir for " + path);
5766            final int[] userIds = sUserManager.getUserIds();
5767            synchronized (mInstallLock) {
5768                // Create a native library symlink only if we have native libraries
5769                // and if the native libraries are 32 bit libraries. We do not provide
5770                // this symlink for 64 bit libraries.
5771                if (pkg.applicationInfo.primaryCpuAbi != null &&
5772                        !VMRuntime.is64BitAbi(pkg.applicationInfo.primaryCpuAbi)) {
5773                    final String nativeLibPath = pkg.applicationInfo.nativeLibraryDir;
5774                    for (int userId : userIds) {
5775                        if (mInstaller.linkNativeLibraryDirectory(pkg.packageName, nativeLibPath, userId) < 0) {
5776                            throw new PackageManagerException(INSTALL_FAILED_INTERNAL_ERROR,
5777                                    "Failed linking native library dir (user=" + userId + ")");
5778                        }
5779                    }
5780                }
5781            }
5782        }
5783
5784        // This is a special case for the "system" package, where the ABI is
5785        // dictated by the zygote configuration (and init.rc). We should keep track
5786        // of this ABI so that we can deal with "normal" applications that run under
5787        // the same UID correctly.
5788        if (mPlatformPackage == pkg) {
5789            pkg.applicationInfo.primaryCpuAbi = VMRuntime.getRuntime().is64Bit() ?
5790                    Build.SUPPORTED_64_BIT_ABIS[0] : Build.SUPPORTED_32_BIT_ABIS[0];
5791        }
5792
5793        pkgSetting.primaryCpuAbiString = pkg.applicationInfo.primaryCpuAbi;
5794        pkgSetting.secondaryCpuAbiString = pkg.applicationInfo.secondaryCpuAbi;
5795        pkgSetting.cpuAbiOverrideString = cpuAbiOverride;
5796        // Copy the derived override back to the parsed package, so that we can
5797        // update the package settings accordingly.
5798        pkg.cpuAbiOverride = cpuAbiOverride;
5799
5800        if (DEBUG_ABI_SELECTION) {
5801            Slog.d(TAG, "Resolved nativeLibraryRoot for " + pkg.applicationInfo.packageName
5802                    + " to root=" + pkg.applicationInfo.nativeLibraryRootDir + ", isa="
5803                    + pkg.applicationInfo.nativeLibraryRootRequiresIsa);
5804        }
5805
5806        // Push the derived path down into PackageSettings so we know what to
5807        // clean up at uninstall time.
5808        pkgSetting.legacyNativeLibraryPathString = pkg.applicationInfo.nativeLibraryRootDir;
5809
5810        if (DEBUG_ABI_SELECTION) {
5811            Log.d(TAG, "Abis for package[" + pkg.packageName + "] are" +
5812                    " primary=" + pkg.applicationInfo.primaryCpuAbi +
5813                    " secondary=" + pkg.applicationInfo.secondaryCpuAbi);
5814        }
5815
5816        if ((scanFlags&SCAN_BOOTING) == 0 && pkgSetting.sharedUser != null) {
5817            // We don't do this here during boot because we can do it all
5818            // at once after scanning all existing packages.
5819            //
5820            // We also do this *before* we perform dexopt on this package, so that
5821            // we can avoid redundant dexopts, and also to make sure we've got the
5822            // code and package path correct.
5823            adjustCpuAbisForSharedUserLPw(pkgSetting.sharedUser.packages,
5824                    pkg, forceDex, (scanFlags & SCAN_DEFER_DEX) != 0);
5825        }
5826
5827        if ((scanFlags & SCAN_NO_DEX) == 0) {
5828            if (performDexOptLI(pkg, null /* instruction sets */, forceDex,
5829                    (scanFlags & SCAN_DEFER_DEX) != 0, false) == DEX_OPT_FAILED) {
5830                throw new PackageManagerException(INSTALL_FAILED_DEXOPT, "scanPackageLI");
5831            }
5832        }
5833
5834        if (mFactoryTest && pkg.requestedPermissions.contains(
5835                android.Manifest.permission.FACTORY_TEST)) {
5836            pkg.applicationInfo.flags |= ApplicationInfo.FLAG_FACTORY_TEST;
5837        }
5838
5839        ArrayList<PackageParser.Package> clientLibPkgs = null;
5840
5841        // writer
5842        synchronized (mPackages) {
5843            if ((pkg.applicationInfo.flags&ApplicationInfo.FLAG_SYSTEM) != 0) {
5844                // Only system apps can add new shared libraries.
5845                if (pkg.libraryNames != null) {
5846                    for (int i=0; i<pkg.libraryNames.size(); i++) {
5847                        String name = pkg.libraryNames.get(i);
5848                        boolean allowed = false;
5849                        if (isUpdatedSystemApp(pkg)) {
5850                            // New library entries can only be added through the
5851                            // system image.  This is important to get rid of a lot
5852                            // of nasty edge cases: for example if we allowed a non-
5853                            // system update of the app to add a library, then uninstalling
5854                            // the update would make the library go away, and assumptions
5855                            // we made such as through app install filtering would now
5856                            // have allowed apps on the device which aren't compatible
5857                            // with it.  Better to just have the restriction here, be
5858                            // conservative, and create many fewer cases that can negatively
5859                            // impact the user experience.
5860                            final PackageSetting sysPs = mSettings
5861                                    .getDisabledSystemPkgLPr(pkg.packageName);
5862                            if (sysPs.pkg != null && sysPs.pkg.libraryNames != null) {
5863                                for (int j=0; j<sysPs.pkg.libraryNames.size(); j++) {
5864                                    if (name.equals(sysPs.pkg.libraryNames.get(j))) {
5865                                        allowed = true;
5866                                        allowed = true;
5867                                        break;
5868                                    }
5869                                }
5870                            }
5871                        } else {
5872                            allowed = true;
5873                        }
5874                        if (allowed) {
5875                            if (!mSharedLibraries.containsKey(name)) {
5876                                mSharedLibraries.put(name, new SharedLibraryEntry(null, pkg.packageName));
5877                            } else if (!name.equals(pkg.packageName)) {
5878                                Slog.w(TAG, "Package " + pkg.packageName + " library "
5879                                        + name + " already exists; skipping");
5880                            }
5881                        } else {
5882                            Slog.w(TAG, "Package " + pkg.packageName + " declares lib "
5883                                    + name + " that is not declared on system image; skipping");
5884                        }
5885                    }
5886                    if ((scanFlags&SCAN_BOOTING) == 0) {
5887                        // If we are not booting, we need to update any applications
5888                        // that are clients of our shared library.  If we are booting,
5889                        // this will all be done once the scan is complete.
5890                        clientLibPkgs = updateAllSharedLibrariesLPw(pkg);
5891                    }
5892                }
5893            }
5894        }
5895
5896        // We also need to dexopt any apps that are dependent on this library.  Note that
5897        // if these fail, we should abort the install since installing the library will
5898        // result in some apps being broken.
5899        if (clientLibPkgs != null) {
5900            if ((scanFlags & SCAN_NO_DEX) == 0) {
5901                for (int i = 0; i < clientLibPkgs.size(); i++) {
5902                    PackageParser.Package clientPkg = clientLibPkgs.get(i);
5903                    if (performDexOptLI(clientPkg, null /* instruction sets */, forceDex,
5904                            (scanFlags & SCAN_DEFER_DEX) != 0, false) == DEX_OPT_FAILED) {
5905                        throw new PackageManagerException(INSTALL_FAILED_DEXOPT,
5906                                "scanPackageLI failed to dexopt clientLibPkgs");
5907                    }
5908                }
5909            }
5910        }
5911
5912        // Request the ActivityManager to kill the process(only for existing packages)
5913        // so that we do not end up in a confused state while the user is still using the older
5914        // version of the application while the new one gets installed.
5915        if ((scanFlags & SCAN_REPLACING) != 0) {
5916            killApplication(pkg.applicationInfo.packageName,
5917                        pkg.applicationInfo.uid, "update pkg");
5918        }
5919
5920        // Also need to kill any apps that are dependent on the library.
5921        if (clientLibPkgs != null) {
5922            for (int i=0; i<clientLibPkgs.size(); i++) {
5923                PackageParser.Package clientPkg = clientLibPkgs.get(i);
5924                killApplication(clientPkg.applicationInfo.packageName,
5925                        clientPkg.applicationInfo.uid, "update lib");
5926            }
5927        }
5928
5929        // writer
5930        synchronized (mPackages) {
5931            // We don't expect installation to fail beyond this point
5932
5933            // Add the new setting to mSettings
5934            mSettings.insertPackageSettingLPw(pkgSetting, pkg);
5935            // Add the new setting to mPackages
5936            mPackages.put(pkg.applicationInfo.packageName, pkg);
5937            // Make sure we don't accidentally delete its data.
5938            final Iterator<PackageCleanItem> iter = mSettings.mPackagesToBeCleaned.iterator();
5939            while (iter.hasNext()) {
5940                PackageCleanItem item = iter.next();
5941                if (pkgName.equals(item.packageName)) {
5942                    iter.remove();
5943                }
5944            }
5945
5946            // Take care of first install / last update times.
5947            if (currentTime != 0) {
5948                if (pkgSetting.firstInstallTime == 0) {
5949                    pkgSetting.firstInstallTime = pkgSetting.lastUpdateTime = currentTime;
5950                } else if ((scanFlags&SCAN_UPDATE_TIME) != 0) {
5951                    pkgSetting.lastUpdateTime = currentTime;
5952                }
5953            } else if (pkgSetting.firstInstallTime == 0) {
5954                // We need *something*.  Take time time stamp of the file.
5955                pkgSetting.firstInstallTime = pkgSetting.lastUpdateTime = scanFileTime;
5956            } else if ((parseFlags&PackageParser.PARSE_IS_SYSTEM_DIR) != 0) {
5957                if (scanFileTime != pkgSetting.timeStamp) {
5958                    // A package on the system image has changed; consider this
5959                    // to be an update.
5960                    pkgSetting.lastUpdateTime = scanFileTime;
5961                }
5962            }
5963
5964            // Add the package's KeySets to the global KeySetManagerService
5965            KeySetManagerService ksms = mSettings.mKeySetManagerService;
5966            try {
5967                // Old KeySetData no longer valid.
5968                ksms.removeAppKeySetDataLPw(pkg.packageName);
5969                ksms.addSigningKeySetToPackageLPw(pkg.packageName, pkg.mSigningKeys);
5970                if (pkg.mKeySetMapping != null) {
5971                    for (Map.Entry<String, ArraySet<PublicKey>> entry :
5972                            pkg.mKeySetMapping.entrySet()) {
5973                        if (entry.getValue() != null) {
5974                            ksms.addDefinedKeySetToPackageLPw(pkg.packageName,
5975                                                          entry.getValue(), entry.getKey());
5976                        }
5977                    }
5978                    if (pkg.mUpgradeKeySets != null) {
5979                        for (String upgradeAlias : pkg.mUpgradeKeySets) {
5980                            ksms.addUpgradeKeySetToPackageLPw(pkg.packageName, upgradeAlias);
5981                        }
5982                    }
5983                }
5984            } catch (NullPointerException e) {
5985                Slog.e(TAG, "Could not add KeySet to " + pkg.packageName, e);
5986            } catch (IllegalArgumentException e) {
5987                Slog.e(TAG, "Could not add KeySet to malformed package" + pkg.packageName, e);
5988            }
5989
5990            int N = pkg.providers.size();
5991            StringBuilder r = null;
5992            int i;
5993            for (i=0; i<N; i++) {
5994                PackageParser.Provider p = pkg.providers.get(i);
5995                p.info.processName = fixProcessName(pkg.applicationInfo.processName,
5996                        p.info.processName, pkg.applicationInfo.uid);
5997                mProviders.addProvider(p);
5998                p.syncable = p.info.isSyncable;
5999                if (p.info.authority != null) {
6000                    String names[] = p.info.authority.split(";");
6001                    p.info.authority = null;
6002                    for (int j = 0; j < names.length; j++) {
6003                        if (j == 1 && p.syncable) {
6004                            // We only want the first authority for a provider to possibly be
6005                            // syncable, so if we already added this provider using a different
6006                            // authority clear the syncable flag. We copy the provider before
6007                            // changing it because the mProviders object contains a reference
6008                            // to a provider that we don't want to change.
6009                            // Only do this for the second authority since the resulting provider
6010                            // object can be the same for all future authorities for this provider.
6011                            p = new PackageParser.Provider(p);
6012                            p.syncable = false;
6013                        }
6014                        if (!mProvidersByAuthority.containsKey(names[j])) {
6015                            mProvidersByAuthority.put(names[j], p);
6016                            if (p.info.authority == null) {
6017                                p.info.authority = names[j];
6018                            } else {
6019                                p.info.authority = p.info.authority + ";" + names[j];
6020                            }
6021                            if (DEBUG_PACKAGE_SCANNING) {
6022                                if ((parseFlags & PackageParser.PARSE_CHATTY) != 0)
6023                                    Log.d(TAG, "Registered content provider: " + names[j]
6024                                            + ", className = " + p.info.name + ", isSyncable = "
6025                                            + p.info.isSyncable);
6026                            }
6027                        } else {
6028                            PackageParser.Provider other = mProvidersByAuthority.get(names[j]);
6029                            Slog.w(TAG, "Skipping provider name " + names[j] +
6030                                    " (in package " + pkg.applicationInfo.packageName +
6031                                    "): name already used by "
6032                                    + ((other != null && other.getComponentName() != null)
6033                                            ? other.getComponentName().getPackageName() : "?"));
6034                        }
6035                    }
6036                }
6037                if ((parseFlags&PackageParser.PARSE_CHATTY) != 0) {
6038                    if (r == null) {
6039                        r = new StringBuilder(256);
6040                    } else {
6041                        r.append(' ');
6042                    }
6043                    r.append(p.info.name);
6044                }
6045            }
6046            if (r != null) {
6047                if (DEBUG_PACKAGE_SCANNING) Log.d(TAG, "  Providers: " + r);
6048            }
6049
6050            N = pkg.services.size();
6051            r = null;
6052            for (i=0; i<N; i++) {
6053                PackageParser.Service s = pkg.services.get(i);
6054                s.info.processName = fixProcessName(pkg.applicationInfo.processName,
6055                        s.info.processName, pkg.applicationInfo.uid);
6056                mServices.addService(s);
6057                if ((parseFlags&PackageParser.PARSE_CHATTY) != 0) {
6058                    if (r == null) {
6059                        r = new StringBuilder(256);
6060                    } else {
6061                        r.append(' ');
6062                    }
6063                    r.append(s.info.name);
6064                }
6065            }
6066            if (r != null) {
6067                if (DEBUG_PACKAGE_SCANNING) Log.d(TAG, "  Services: " + r);
6068            }
6069
6070            N = pkg.receivers.size();
6071            r = null;
6072            for (i=0; i<N; i++) {
6073                PackageParser.Activity a = pkg.receivers.get(i);
6074                a.info.processName = fixProcessName(pkg.applicationInfo.processName,
6075                        a.info.processName, pkg.applicationInfo.uid);
6076                mReceivers.addActivity(a, "receiver");
6077                if ((parseFlags&PackageParser.PARSE_CHATTY) != 0) {
6078                    if (r == null) {
6079                        r = new StringBuilder(256);
6080                    } else {
6081                        r.append(' ');
6082                    }
6083                    r.append(a.info.name);
6084                }
6085            }
6086            if (r != null) {
6087                if (DEBUG_PACKAGE_SCANNING) Log.d(TAG, "  Receivers: " + r);
6088            }
6089
6090            N = pkg.activities.size();
6091            r = null;
6092            for (i=0; i<N; i++) {
6093                PackageParser.Activity a = pkg.activities.get(i);
6094                a.info.processName = fixProcessName(pkg.applicationInfo.processName,
6095                        a.info.processName, pkg.applicationInfo.uid);
6096                mActivities.addActivity(a, "activity");
6097                if ((parseFlags&PackageParser.PARSE_CHATTY) != 0) {
6098                    if (r == null) {
6099                        r = new StringBuilder(256);
6100                    } else {
6101                        r.append(' ');
6102                    }
6103                    r.append(a.info.name);
6104                }
6105            }
6106            if (r != null) {
6107                if (DEBUG_PACKAGE_SCANNING) Log.d(TAG, "  Activities: " + r);
6108            }
6109
6110            N = pkg.permissionGroups.size();
6111            r = null;
6112            for (i=0; i<N; i++) {
6113                PackageParser.PermissionGroup pg = pkg.permissionGroups.get(i);
6114                PackageParser.PermissionGroup cur = mPermissionGroups.get(pg.info.name);
6115                if (cur == null) {
6116                    mPermissionGroups.put(pg.info.name, pg);
6117                    if ((parseFlags&PackageParser.PARSE_CHATTY) != 0) {
6118                        if (r == null) {
6119                            r = new StringBuilder(256);
6120                        } else {
6121                            r.append(' ');
6122                        }
6123                        r.append(pg.info.name);
6124                    }
6125                } else {
6126                    Slog.w(TAG, "Permission group " + pg.info.name + " from package "
6127                            + pg.info.packageName + " ignored: original from "
6128                            + cur.info.packageName);
6129                    if ((parseFlags&PackageParser.PARSE_CHATTY) != 0) {
6130                        if (r == null) {
6131                            r = new StringBuilder(256);
6132                        } else {
6133                            r.append(' ');
6134                        }
6135                        r.append("DUP:");
6136                        r.append(pg.info.name);
6137                    }
6138                }
6139            }
6140            if (r != null) {
6141                if (DEBUG_PACKAGE_SCANNING) Log.d(TAG, "  Permission Groups: " + r);
6142            }
6143
6144            N = pkg.permissions.size();
6145            r = null;
6146            for (i=0; i<N; i++) {
6147                PackageParser.Permission p = pkg.permissions.get(i);
6148                ArrayMap<String, BasePermission> permissionMap =
6149                        p.tree ? mSettings.mPermissionTrees
6150                        : mSettings.mPermissions;
6151                p.group = mPermissionGroups.get(p.info.group);
6152                if (p.info.group == null || p.group != null) {
6153                    BasePermission bp = permissionMap.get(p.info.name);
6154
6155                    // Allow system apps to redefine non-system permissions
6156                    if (bp != null && !Objects.equals(bp.sourcePackage, p.info.packageName)) {
6157                        final boolean currentOwnerIsSystem = (bp.perm != null
6158                                && isSystemApp(bp.perm.owner));
6159                        if (isSystemApp(p.owner)) {
6160                            if (bp.type == BasePermission.TYPE_BUILTIN && bp.perm == null) {
6161                                // It's a built-in permission and no owner, take ownership now
6162                                bp.packageSetting = pkgSetting;
6163                                bp.perm = p;
6164                                bp.uid = pkg.applicationInfo.uid;
6165                                bp.sourcePackage = p.info.packageName;
6166                            } else if (!currentOwnerIsSystem) {
6167                                String msg = "New decl " + p.owner + " of permission  "
6168                                        + p.info.name + " is system; overriding " + bp.sourcePackage;
6169                                reportSettingsProblem(Log.WARN, msg);
6170                                bp = null;
6171                            }
6172                        }
6173                    }
6174
6175                    if (bp == null) {
6176                        bp = new BasePermission(p.info.name, p.info.packageName,
6177                                BasePermission.TYPE_NORMAL);
6178                        permissionMap.put(p.info.name, bp);
6179                    }
6180
6181                    if (bp.perm == null) {
6182                        if (bp.sourcePackage == null
6183                                || bp.sourcePackage.equals(p.info.packageName)) {
6184                            BasePermission tree = findPermissionTreeLP(p.info.name);
6185                            if (tree == null
6186                                    || tree.sourcePackage.equals(p.info.packageName)) {
6187                                bp.packageSetting = pkgSetting;
6188                                bp.perm = p;
6189                                bp.uid = pkg.applicationInfo.uid;
6190                                bp.sourcePackage = p.info.packageName;
6191                                if ((parseFlags&PackageParser.PARSE_CHATTY) != 0) {
6192                                    if (r == null) {
6193                                        r = new StringBuilder(256);
6194                                    } else {
6195                                        r.append(' ');
6196                                    }
6197                                    r.append(p.info.name);
6198                                }
6199                            } else {
6200                                Slog.w(TAG, "Permission " + p.info.name + " from package "
6201                                        + p.info.packageName + " ignored: base tree "
6202                                        + tree.name + " is from package "
6203                                        + tree.sourcePackage);
6204                            }
6205                        } else {
6206                            Slog.w(TAG, "Permission " + p.info.name + " from package "
6207                                    + p.info.packageName + " ignored: original from "
6208                                    + bp.sourcePackage);
6209                        }
6210                    } else if ((parseFlags&PackageParser.PARSE_CHATTY) != 0) {
6211                        if (r == null) {
6212                            r = new StringBuilder(256);
6213                        } else {
6214                            r.append(' ');
6215                        }
6216                        r.append("DUP:");
6217                        r.append(p.info.name);
6218                    }
6219                    if (bp.perm == p) {
6220                        bp.protectionLevel = p.info.protectionLevel;
6221                    }
6222                } else {
6223                    Slog.w(TAG, "Permission " + p.info.name + " from package "
6224                            + p.info.packageName + " ignored: no group "
6225                            + p.group);
6226                }
6227            }
6228            if (r != null) {
6229                if (DEBUG_PACKAGE_SCANNING) Log.d(TAG, "  Permissions: " + r);
6230            }
6231
6232            N = pkg.instrumentation.size();
6233            r = null;
6234            for (i=0; i<N; i++) {
6235                PackageParser.Instrumentation a = pkg.instrumentation.get(i);
6236                a.info.packageName = pkg.applicationInfo.packageName;
6237                a.info.sourceDir = pkg.applicationInfo.sourceDir;
6238                a.info.publicSourceDir = pkg.applicationInfo.publicSourceDir;
6239                a.info.splitSourceDirs = pkg.applicationInfo.splitSourceDirs;
6240                a.info.splitPublicSourceDirs = pkg.applicationInfo.splitPublicSourceDirs;
6241                a.info.dataDir = pkg.applicationInfo.dataDir;
6242
6243                // TODO: Update instrumentation.nativeLibraryDir as well ? Does it
6244                // need other information about the application, like the ABI and what not ?
6245                a.info.nativeLibraryDir = pkg.applicationInfo.nativeLibraryDir;
6246                mInstrumentation.put(a.getComponentName(), a);
6247                if ((parseFlags&PackageParser.PARSE_CHATTY) != 0) {
6248                    if (r == null) {
6249                        r = new StringBuilder(256);
6250                    } else {
6251                        r.append(' ');
6252                    }
6253                    r.append(a.info.name);
6254                }
6255            }
6256            if (r != null) {
6257                if (DEBUG_PACKAGE_SCANNING) Log.d(TAG, "  Instrumentation: " + r);
6258            }
6259
6260            if (pkg.protectedBroadcasts != null) {
6261                N = pkg.protectedBroadcasts.size();
6262                for (i=0; i<N; i++) {
6263                    mProtectedBroadcasts.add(pkg.protectedBroadcasts.get(i));
6264                }
6265            }
6266
6267            pkgSetting.setTimeStamp(scanFileTime);
6268
6269            // Create idmap files for pairs of (packages, overlay packages).
6270            // Note: "android", ie framework-res.apk, is handled by native layers.
6271            if (pkg.mOverlayTarget != null) {
6272                // This is an overlay package.
6273                if (pkg.mOverlayTarget != null && !pkg.mOverlayTarget.equals("android")) {
6274                    if (!mOverlays.containsKey(pkg.mOverlayTarget)) {
6275                        mOverlays.put(pkg.mOverlayTarget,
6276                                new ArrayMap<String, PackageParser.Package>());
6277                    }
6278                    ArrayMap<String, PackageParser.Package> map = mOverlays.get(pkg.mOverlayTarget);
6279                    map.put(pkg.packageName, pkg);
6280                    PackageParser.Package orig = mPackages.get(pkg.mOverlayTarget);
6281                    if (orig != null && !createIdmapForPackagePairLI(orig, pkg)) {
6282                        throw new PackageManagerException(INSTALL_FAILED_UPDATE_INCOMPATIBLE,
6283                                "scanPackageLI failed to createIdmap");
6284                    }
6285                }
6286            } else if (mOverlays.containsKey(pkg.packageName) &&
6287                    !pkg.packageName.equals("android")) {
6288                // This is a regular package, with one or more known overlay packages.
6289                createIdmapsForPackageLI(pkg);
6290            }
6291        }
6292
6293        return pkg;
6294    }
6295
6296    /**
6297     * Adjusts ABIs for a set of packages belonging to a shared user so that they all match.
6298     * i.e, so that all packages can be run inside a single process if required.
6299     *
6300     * Optionally, callers can pass in a parsed package via {@code newPackage} in which case
6301     * this function will either try and make the ABI for all packages in {@code packagesForUser}
6302     * match {@code scannedPackage} or will update the ABI of {@code scannedPackage} to match
6303     * the ABI selected for {@code packagesForUser}. This variant is used when installing or
6304     * updating a package that belongs to a shared user.
6305     *
6306     * NOTE: We currently only match for the primary CPU abi string. Matching the secondary
6307     * adds unnecessary complexity.
6308     */
6309    private void adjustCpuAbisForSharedUserLPw(Set<PackageSetting> packagesForUser,
6310            PackageParser.Package scannedPackage, boolean forceDexOpt, boolean deferDexOpt) {
6311        String requiredInstructionSet = null;
6312        if (scannedPackage != null && scannedPackage.applicationInfo.primaryCpuAbi != null) {
6313            requiredInstructionSet = VMRuntime.getInstructionSet(
6314                     scannedPackage.applicationInfo.primaryCpuAbi);
6315        }
6316
6317        PackageSetting requirer = null;
6318        for (PackageSetting ps : packagesForUser) {
6319            // If packagesForUser contains scannedPackage, we skip it. This will happen
6320            // when scannedPackage is an update of an existing package. Without this check,
6321            // we will never be able to change the ABI of any package belonging to a shared
6322            // user, even if it's compatible with other packages.
6323            if (scannedPackage == null || !scannedPackage.packageName.equals(ps.name)) {
6324                if (ps.primaryCpuAbiString == null) {
6325                    continue;
6326                }
6327
6328                final String instructionSet = VMRuntime.getInstructionSet(ps.primaryCpuAbiString);
6329                if (requiredInstructionSet != null && !instructionSet.equals(requiredInstructionSet)) {
6330                    // We have a mismatch between instruction sets (say arm vs arm64) warn about
6331                    // this but there's not much we can do.
6332                    String errorMessage = "Instruction set mismatch, "
6333                            + ((requirer == null) ? "[caller]" : requirer)
6334                            + " requires " + requiredInstructionSet + " whereas " + ps
6335                            + " requires " + instructionSet;
6336                    Slog.w(TAG, errorMessage);
6337                }
6338
6339                if (requiredInstructionSet == null) {
6340                    requiredInstructionSet = instructionSet;
6341                    requirer = ps;
6342                }
6343            }
6344        }
6345
6346        if (requiredInstructionSet != null) {
6347            String adjustedAbi;
6348            if (requirer != null) {
6349                // requirer != null implies that either scannedPackage was null or that scannedPackage
6350                // did not require an ABI, in which case we have to adjust scannedPackage to match
6351                // the ABI of the set (which is the same as requirer's ABI)
6352                adjustedAbi = requirer.primaryCpuAbiString;
6353                if (scannedPackage != null) {
6354                    scannedPackage.applicationInfo.primaryCpuAbi = adjustedAbi;
6355                }
6356            } else {
6357                // requirer == null implies that we're updating all ABIs in the set to
6358                // match scannedPackage.
6359                adjustedAbi =  scannedPackage.applicationInfo.primaryCpuAbi;
6360            }
6361
6362            for (PackageSetting ps : packagesForUser) {
6363                if (scannedPackage == null || !scannedPackage.packageName.equals(ps.name)) {
6364                    if (ps.primaryCpuAbiString != null) {
6365                        continue;
6366                    }
6367
6368                    ps.primaryCpuAbiString = adjustedAbi;
6369                    if (ps.pkg != null && ps.pkg.applicationInfo != null) {
6370                        ps.pkg.applicationInfo.primaryCpuAbi = adjustedAbi;
6371                        Slog.i(TAG, "Adjusting ABI for : " + ps.name + " to " + adjustedAbi);
6372
6373                        if (performDexOptLI(ps.pkg, null /* instruction sets */, forceDexOpt,
6374                                deferDexOpt, true) == DEX_OPT_FAILED) {
6375                            ps.primaryCpuAbiString = null;
6376                            ps.pkg.applicationInfo.primaryCpuAbi = null;
6377                            return;
6378                        } else {
6379                            mInstaller.rmdex(ps.codePathString,
6380                                             getDexCodeInstructionSet(getPreferredInstructionSet()));
6381                        }
6382                    }
6383                }
6384            }
6385        }
6386    }
6387
6388    private void setUpCustomResolverActivity(PackageParser.Package pkg) {
6389        synchronized (mPackages) {
6390            mResolverReplaced = true;
6391            // Set up information for custom user intent resolution activity.
6392            mResolveActivity.applicationInfo = pkg.applicationInfo;
6393            mResolveActivity.name = mCustomResolverComponentName.getClassName();
6394            mResolveActivity.packageName = pkg.applicationInfo.packageName;
6395            mResolveActivity.processName = null;
6396            mResolveActivity.launchMode = ActivityInfo.LAUNCH_MULTIPLE;
6397            mResolveActivity.flags = ActivityInfo.FLAG_EXCLUDE_FROM_RECENTS |
6398                    ActivityInfo.FLAG_FINISH_ON_CLOSE_SYSTEM_DIALOGS;
6399            mResolveActivity.theme = 0;
6400            mResolveActivity.exported = true;
6401            mResolveActivity.enabled = true;
6402            mResolveInfo.activityInfo = mResolveActivity;
6403            mResolveInfo.priority = 0;
6404            mResolveInfo.preferredOrder = 0;
6405            mResolveInfo.match = 0;
6406            mResolveComponentName = mCustomResolverComponentName;
6407            Slog.i(TAG, "Replacing default ResolverActivity with custom activity: " +
6408                    mResolveComponentName);
6409        }
6410    }
6411
6412    private static String calculateBundledApkRoot(final String codePathString) {
6413        final File codePath = new File(codePathString);
6414        final File codeRoot;
6415        if (FileUtils.contains(Environment.getRootDirectory(), codePath)) {
6416            codeRoot = Environment.getRootDirectory();
6417        } else if (FileUtils.contains(Environment.getOemDirectory(), codePath)) {
6418            codeRoot = Environment.getOemDirectory();
6419        } else if (FileUtils.contains(Environment.getVendorDirectory(), codePath)) {
6420            codeRoot = Environment.getVendorDirectory();
6421        } else {
6422            // Unrecognized code path; take its top real segment as the apk root:
6423            // e.g. /something/app/blah.apk => /something
6424            try {
6425                File f = codePath.getCanonicalFile();
6426                File parent = f.getParentFile();    // non-null because codePath is a file
6427                File tmp;
6428                while ((tmp = parent.getParentFile()) != null) {
6429                    f = parent;
6430                    parent = tmp;
6431                }
6432                codeRoot = f;
6433                Slog.w(TAG, "Unrecognized code path "
6434                        + codePath + " - using " + codeRoot);
6435            } catch (IOException e) {
6436                // Can't canonicalize the code path -- shenanigans?
6437                Slog.w(TAG, "Can't canonicalize code path " + codePath);
6438                return Environment.getRootDirectory().getPath();
6439            }
6440        }
6441        return codeRoot.getPath();
6442    }
6443
6444    /**
6445     * Derive and set the location of native libraries for the given package,
6446     * which varies depending on where and how the package was installed.
6447     */
6448    private void setNativeLibraryPaths(PackageParser.Package pkg) {
6449        final ApplicationInfo info = pkg.applicationInfo;
6450        final String codePath = pkg.codePath;
6451        final File codeFile = new File(codePath);
6452        final boolean bundledApp = isSystemApp(info) && !isUpdatedSystemApp(info);
6453        final boolean asecApp = isForwardLocked(info) || isExternal(info);
6454
6455        info.nativeLibraryRootDir = null;
6456        info.nativeLibraryRootRequiresIsa = false;
6457        info.nativeLibraryDir = null;
6458        info.secondaryNativeLibraryDir = null;
6459
6460        if (isApkFile(codeFile)) {
6461            // Monolithic install
6462            if (bundledApp) {
6463                // If "/system/lib64/apkname" exists, assume that is the per-package
6464                // native library directory to use; otherwise use "/system/lib/apkname".
6465                final String apkRoot = calculateBundledApkRoot(info.sourceDir);
6466                final boolean is64Bit = VMRuntime.is64BitInstructionSet(
6467                        getPrimaryInstructionSet(info));
6468
6469                // This is a bundled system app so choose the path based on the ABI.
6470                // if it's a 64 bit abi, use lib64 otherwise use lib32. Note that this
6471                // is just the default path.
6472                final String apkName = deriveCodePathName(codePath);
6473                final String libDir = is64Bit ? LIB64_DIR_NAME : LIB_DIR_NAME;
6474                info.nativeLibraryRootDir = Environment.buildPath(new File(apkRoot), libDir,
6475                        apkName).getAbsolutePath();
6476
6477                if (info.secondaryCpuAbi != null) {
6478                    final String secondaryLibDir = is64Bit ? LIB_DIR_NAME : LIB64_DIR_NAME;
6479                    info.secondaryNativeLibraryDir = Environment.buildPath(new File(apkRoot),
6480                            secondaryLibDir, apkName).getAbsolutePath();
6481                }
6482            } else if (asecApp) {
6483                info.nativeLibraryRootDir = new File(codeFile.getParentFile(), LIB_DIR_NAME)
6484                        .getAbsolutePath();
6485            } else {
6486                final String apkName = deriveCodePathName(codePath);
6487                info.nativeLibraryRootDir = new File(mAppLib32InstallDir, apkName)
6488                        .getAbsolutePath();
6489            }
6490
6491            info.nativeLibraryRootRequiresIsa = false;
6492            info.nativeLibraryDir = info.nativeLibraryRootDir;
6493        } else {
6494            // Cluster install
6495            info.nativeLibraryRootDir = new File(codeFile, LIB_DIR_NAME).getAbsolutePath();
6496            info.nativeLibraryRootRequiresIsa = true;
6497
6498            info.nativeLibraryDir = new File(info.nativeLibraryRootDir,
6499                    getPrimaryInstructionSet(info)).getAbsolutePath();
6500
6501            if (info.secondaryCpuAbi != null) {
6502                info.secondaryNativeLibraryDir = new File(info.nativeLibraryRootDir,
6503                        VMRuntime.getInstructionSet(info.secondaryCpuAbi)).getAbsolutePath();
6504            }
6505        }
6506    }
6507
6508    /**
6509     * Calculate the abis and roots for a bundled app. These can uniquely
6510     * be determined from the contents of the system partition, i.e whether
6511     * it contains 64 or 32 bit shared libraries etc. We do not validate any
6512     * of this information, and instead assume that the system was built
6513     * sensibly.
6514     */
6515    private void setBundledAppAbisAndRoots(PackageParser.Package pkg,
6516                                           PackageSetting pkgSetting) {
6517        final String apkName = deriveCodePathName(pkg.applicationInfo.getCodePath());
6518
6519        // If "/system/lib64/apkname" exists, assume that is the per-package
6520        // native library directory to use; otherwise use "/system/lib/apkname".
6521        final String apkRoot = calculateBundledApkRoot(pkg.applicationInfo.sourceDir);
6522        setBundledAppAbi(pkg, apkRoot, apkName);
6523        // pkgSetting might be null during rescan following uninstall of updates
6524        // to a bundled app, so accommodate that possibility.  The settings in
6525        // that case will be established later from the parsed package.
6526        //
6527        // If the settings aren't null, sync them up with what we've just derived.
6528        // note that apkRoot isn't stored in the package settings.
6529        if (pkgSetting != null) {
6530            pkgSetting.primaryCpuAbiString = pkg.applicationInfo.primaryCpuAbi;
6531            pkgSetting.secondaryCpuAbiString = pkg.applicationInfo.secondaryCpuAbi;
6532        }
6533    }
6534
6535    /**
6536     * Deduces the ABI of a bundled app and sets the relevant fields on the
6537     * parsed pkg object.
6538     *
6539     * @param apkRoot the root of the installed apk, something like {@code /system} or {@code /oem}
6540     *        under which system libraries are installed.
6541     * @param apkName the name of the installed package.
6542     */
6543    private static void setBundledAppAbi(PackageParser.Package pkg, String apkRoot, String apkName) {
6544        final File codeFile = new File(pkg.codePath);
6545
6546        final boolean has64BitLibs;
6547        final boolean has32BitLibs;
6548        if (isApkFile(codeFile)) {
6549            // Monolithic install
6550            has64BitLibs = (new File(apkRoot, new File(LIB64_DIR_NAME, apkName).getPath())).exists();
6551            has32BitLibs = (new File(apkRoot, new File(LIB_DIR_NAME, apkName).getPath())).exists();
6552        } else {
6553            // Cluster install
6554            final File rootDir = new File(codeFile, LIB_DIR_NAME);
6555            if (!ArrayUtils.isEmpty(Build.SUPPORTED_64_BIT_ABIS)
6556                    && !TextUtils.isEmpty(Build.SUPPORTED_64_BIT_ABIS[0])) {
6557                final String isa = VMRuntime.getInstructionSet(Build.SUPPORTED_64_BIT_ABIS[0]);
6558                has64BitLibs = (new File(rootDir, isa)).exists();
6559            } else {
6560                has64BitLibs = false;
6561            }
6562            if (!ArrayUtils.isEmpty(Build.SUPPORTED_32_BIT_ABIS)
6563                    && !TextUtils.isEmpty(Build.SUPPORTED_32_BIT_ABIS[0])) {
6564                final String isa = VMRuntime.getInstructionSet(Build.SUPPORTED_32_BIT_ABIS[0]);
6565                has32BitLibs = (new File(rootDir, isa)).exists();
6566            } else {
6567                has32BitLibs = false;
6568            }
6569        }
6570
6571        if (has64BitLibs && !has32BitLibs) {
6572            // The package has 64 bit libs, but not 32 bit libs. Its primary
6573            // ABI should be 64 bit. We can safely assume here that the bundled
6574            // native libraries correspond to the most preferred ABI in the list.
6575
6576            pkg.applicationInfo.primaryCpuAbi = Build.SUPPORTED_64_BIT_ABIS[0];
6577            pkg.applicationInfo.secondaryCpuAbi = null;
6578        } else if (has32BitLibs && !has64BitLibs) {
6579            // The package has 32 bit libs but not 64 bit libs. Its primary
6580            // ABI should be 32 bit.
6581
6582            pkg.applicationInfo.primaryCpuAbi = Build.SUPPORTED_32_BIT_ABIS[0];
6583            pkg.applicationInfo.secondaryCpuAbi = null;
6584        } else if (has32BitLibs && has64BitLibs) {
6585            // The application has both 64 and 32 bit bundled libraries. We check
6586            // here that the app declares multiArch support, and warn if it doesn't.
6587            //
6588            // We will be lenient here and record both ABIs. The primary will be the
6589            // ABI that's higher on the list, i.e, a device that's configured to prefer
6590            // 64 bit apps will see a 64 bit primary ABI,
6591
6592            if ((pkg.applicationInfo.flags & ApplicationInfo.FLAG_MULTIARCH) == 0) {
6593                Slog.e(TAG, "Package: " + pkg + " has multiple bundled libs, but is not multiarch.");
6594            }
6595
6596            if (VMRuntime.is64BitInstructionSet(getPreferredInstructionSet())) {
6597                pkg.applicationInfo.primaryCpuAbi = Build.SUPPORTED_64_BIT_ABIS[0];
6598                pkg.applicationInfo.secondaryCpuAbi = Build.SUPPORTED_32_BIT_ABIS[0];
6599            } else {
6600                pkg.applicationInfo.primaryCpuAbi = Build.SUPPORTED_32_BIT_ABIS[0];
6601                pkg.applicationInfo.secondaryCpuAbi = Build.SUPPORTED_64_BIT_ABIS[0];
6602            }
6603        } else {
6604            pkg.applicationInfo.primaryCpuAbi = null;
6605            pkg.applicationInfo.secondaryCpuAbi = null;
6606        }
6607    }
6608
6609    private void killApplication(String pkgName, int appId, String reason) {
6610        // Request the ActivityManager to kill the process(only for existing packages)
6611        // so that we do not end up in a confused state while the user is still using the older
6612        // version of the application while the new one gets installed.
6613        IActivityManager am = ActivityManagerNative.getDefault();
6614        if (am != null) {
6615            try {
6616                am.killApplicationWithAppId(pkgName, appId, reason);
6617            } catch (RemoteException e) {
6618            }
6619        }
6620    }
6621
6622    void removePackageLI(PackageSetting ps, boolean chatty) {
6623        if (DEBUG_INSTALL) {
6624            if (chatty)
6625                Log.d(TAG, "Removing package " + ps.name);
6626        }
6627
6628        // writer
6629        synchronized (mPackages) {
6630            mPackages.remove(ps.name);
6631            final PackageParser.Package pkg = ps.pkg;
6632            if (pkg != null) {
6633                cleanPackageDataStructuresLILPw(pkg, chatty);
6634            }
6635        }
6636    }
6637
6638    void removeInstalledPackageLI(PackageParser.Package pkg, boolean chatty) {
6639        if (DEBUG_INSTALL) {
6640            if (chatty)
6641                Log.d(TAG, "Removing package " + pkg.applicationInfo.packageName);
6642        }
6643
6644        // writer
6645        synchronized (mPackages) {
6646            mPackages.remove(pkg.applicationInfo.packageName);
6647            cleanPackageDataStructuresLILPw(pkg, chatty);
6648        }
6649    }
6650
6651    void cleanPackageDataStructuresLILPw(PackageParser.Package pkg, boolean chatty) {
6652        int N = pkg.providers.size();
6653        StringBuilder r = null;
6654        int i;
6655        for (i=0; i<N; i++) {
6656            PackageParser.Provider p = pkg.providers.get(i);
6657            mProviders.removeProvider(p);
6658            if (p.info.authority == null) {
6659
6660                /* There was another ContentProvider with this authority when
6661                 * this app was installed so this authority is null,
6662                 * Ignore it as we don't have to unregister the provider.
6663                 */
6664                continue;
6665            }
6666            String names[] = p.info.authority.split(";");
6667            for (int j = 0; j < names.length; j++) {
6668                if (mProvidersByAuthority.get(names[j]) == p) {
6669                    mProvidersByAuthority.remove(names[j]);
6670                    if (DEBUG_REMOVE) {
6671                        if (chatty)
6672                            Log.d(TAG, "Unregistered content provider: " + names[j]
6673                                    + ", className = " + p.info.name + ", isSyncable = "
6674                                    + p.info.isSyncable);
6675                    }
6676                }
6677            }
6678            if (DEBUG_REMOVE && chatty) {
6679                if (r == null) {
6680                    r = new StringBuilder(256);
6681                } else {
6682                    r.append(' ');
6683                }
6684                r.append(p.info.name);
6685            }
6686        }
6687        if (r != null) {
6688            if (DEBUG_REMOVE) Log.d(TAG, "  Providers: " + r);
6689        }
6690
6691        N = pkg.services.size();
6692        r = null;
6693        for (i=0; i<N; i++) {
6694            PackageParser.Service s = pkg.services.get(i);
6695            mServices.removeService(s);
6696            if (chatty) {
6697                if (r == null) {
6698                    r = new StringBuilder(256);
6699                } else {
6700                    r.append(' ');
6701                }
6702                r.append(s.info.name);
6703            }
6704        }
6705        if (r != null) {
6706            if (DEBUG_REMOVE) Log.d(TAG, "  Services: " + r);
6707        }
6708
6709        N = pkg.receivers.size();
6710        r = null;
6711        for (i=0; i<N; i++) {
6712            PackageParser.Activity a = pkg.receivers.get(i);
6713            mReceivers.removeActivity(a, "receiver");
6714            if (DEBUG_REMOVE && chatty) {
6715                if (r == null) {
6716                    r = new StringBuilder(256);
6717                } else {
6718                    r.append(' ');
6719                }
6720                r.append(a.info.name);
6721            }
6722        }
6723        if (r != null) {
6724            if (DEBUG_REMOVE) Log.d(TAG, "  Receivers: " + r);
6725        }
6726
6727        N = pkg.activities.size();
6728        r = null;
6729        for (i=0; i<N; i++) {
6730            PackageParser.Activity a = pkg.activities.get(i);
6731            mActivities.removeActivity(a, "activity");
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, "  Activities: " + r);
6743        }
6744
6745        N = pkg.permissions.size();
6746        r = null;
6747        for (i=0; i<N; i++) {
6748            PackageParser.Permission p = pkg.permissions.get(i);
6749            BasePermission bp = mSettings.mPermissions.get(p.info.name);
6750            if (bp == null) {
6751                bp = mSettings.mPermissionTrees.get(p.info.name);
6752            }
6753            if (bp != null && bp.perm == p) {
6754                bp.perm = null;
6755                if (DEBUG_REMOVE && chatty) {
6756                    if (r == null) {
6757                        r = new StringBuilder(256);
6758                    } else {
6759                        r.append(' ');
6760                    }
6761                    r.append(p.info.name);
6762                }
6763            }
6764            if ((p.info.protectionLevel&PermissionInfo.PROTECTION_FLAG_APPOP) != 0) {
6765                ArraySet<String> appOpPerms = mAppOpPermissionPackages.get(p.info.name);
6766                if (appOpPerms != null) {
6767                    appOpPerms.remove(pkg.packageName);
6768                }
6769            }
6770        }
6771        if (r != null) {
6772            if (DEBUG_REMOVE) Log.d(TAG, "  Permissions: " + r);
6773        }
6774
6775        N = pkg.requestedPermissions.size();
6776        r = null;
6777        for (i=0; i<N; i++) {
6778            String perm = pkg.requestedPermissions.get(i);
6779            BasePermission bp = mSettings.mPermissions.get(perm);
6780            if (bp != null && (bp.protectionLevel&PermissionInfo.PROTECTION_FLAG_APPOP) != 0) {
6781                ArraySet<String> appOpPerms = mAppOpPermissionPackages.get(perm);
6782                if (appOpPerms != null) {
6783                    appOpPerms.remove(pkg.packageName);
6784                    if (appOpPerms.isEmpty()) {
6785                        mAppOpPermissionPackages.remove(perm);
6786                    }
6787                }
6788            }
6789        }
6790        if (r != null) {
6791            if (DEBUG_REMOVE) Log.d(TAG, "  Permissions: " + r);
6792        }
6793
6794        N = pkg.instrumentation.size();
6795        r = null;
6796        for (i=0; i<N; i++) {
6797            PackageParser.Instrumentation a = pkg.instrumentation.get(i);
6798            mInstrumentation.remove(a.getComponentName());
6799            if (DEBUG_REMOVE && chatty) {
6800                if (r == null) {
6801                    r = new StringBuilder(256);
6802                } else {
6803                    r.append(' ');
6804                }
6805                r.append(a.info.name);
6806            }
6807        }
6808        if (r != null) {
6809            if (DEBUG_REMOVE) Log.d(TAG, "  Instrumentation: " + r);
6810        }
6811
6812        r = null;
6813        if ((pkg.applicationInfo.flags&ApplicationInfo.FLAG_SYSTEM) != 0) {
6814            // Only system apps can hold shared libraries.
6815            if (pkg.libraryNames != null) {
6816                for (i=0; i<pkg.libraryNames.size(); i++) {
6817                    String name = pkg.libraryNames.get(i);
6818                    SharedLibraryEntry cur = mSharedLibraries.get(name);
6819                    if (cur != null && cur.apk != null && cur.apk.equals(pkg.packageName)) {
6820                        mSharedLibraries.remove(name);
6821                        if (DEBUG_REMOVE && chatty) {
6822                            if (r == null) {
6823                                r = new StringBuilder(256);
6824                            } else {
6825                                r.append(' ');
6826                            }
6827                            r.append(name);
6828                        }
6829                    }
6830                }
6831            }
6832        }
6833        if (r != null) {
6834            if (DEBUG_REMOVE) Log.d(TAG, "  Libraries: " + r);
6835        }
6836    }
6837
6838    private static boolean hasPermission(PackageParser.Package pkgInfo, String perm) {
6839        for (int i=pkgInfo.permissions.size()-1; i>=0; i--) {
6840            if (pkgInfo.permissions.get(i).info.name.equals(perm)) {
6841                return true;
6842            }
6843        }
6844        return false;
6845    }
6846
6847    static final int UPDATE_PERMISSIONS_ALL = 1<<0;
6848    static final int UPDATE_PERMISSIONS_REPLACE_PKG = 1<<1;
6849    static final int UPDATE_PERMISSIONS_REPLACE_ALL = 1<<2;
6850
6851    private void updatePermissionsLPw(String changingPkg,
6852            PackageParser.Package pkgInfo, int flags) {
6853        // Make sure there are no dangling permission trees.
6854        Iterator<BasePermission> it = mSettings.mPermissionTrees.values().iterator();
6855        while (it.hasNext()) {
6856            final BasePermission bp = it.next();
6857            if (bp.packageSetting == null) {
6858                // We may not yet have parsed the package, so just see if
6859                // we still know about its settings.
6860                bp.packageSetting = mSettings.mPackages.get(bp.sourcePackage);
6861            }
6862            if (bp.packageSetting == null) {
6863                Slog.w(TAG, "Removing dangling permission tree: " + bp.name
6864                        + " from package " + bp.sourcePackage);
6865                it.remove();
6866            } else if (changingPkg != null && changingPkg.equals(bp.sourcePackage)) {
6867                if (pkgInfo == null || !hasPermission(pkgInfo, bp.name)) {
6868                    Slog.i(TAG, "Removing old permission tree: " + bp.name
6869                            + " from package " + bp.sourcePackage);
6870                    flags |= UPDATE_PERMISSIONS_ALL;
6871                    it.remove();
6872                }
6873            }
6874        }
6875
6876        // Make sure all dynamic permissions have been assigned to a package,
6877        // and make sure there are no dangling permissions.
6878        it = mSettings.mPermissions.values().iterator();
6879        while (it.hasNext()) {
6880            final BasePermission bp = it.next();
6881            if (bp.type == BasePermission.TYPE_DYNAMIC) {
6882                if (DEBUG_SETTINGS) Log.v(TAG, "Dynamic permission: name="
6883                        + bp.name + " pkg=" + bp.sourcePackage
6884                        + " info=" + bp.pendingInfo);
6885                if (bp.packageSetting == null && bp.pendingInfo != null) {
6886                    final BasePermission tree = findPermissionTreeLP(bp.name);
6887                    if (tree != null && tree.perm != null) {
6888                        bp.packageSetting = tree.packageSetting;
6889                        bp.perm = new PackageParser.Permission(tree.perm.owner,
6890                                new PermissionInfo(bp.pendingInfo));
6891                        bp.perm.info.packageName = tree.perm.info.packageName;
6892                        bp.perm.info.name = bp.name;
6893                        bp.uid = tree.uid;
6894                    }
6895                }
6896            }
6897            if (bp.packageSetting == null) {
6898                // We may not yet have parsed the package, so just see if
6899                // we still know about its settings.
6900                bp.packageSetting = mSettings.mPackages.get(bp.sourcePackage);
6901            }
6902            if (bp.packageSetting == null) {
6903                Slog.w(TAG, "Removing dangling permission: " + bp.name
6904                        + " from package " + bp.sourcePackage);
6905                it.remove();
6906            } else if (changingPkg != null && changingPkg.equals(bp.sourcePackage)) {
6907                if (pkgInfo == null || !hasPermission(pkgInfo, bp.name)) {
6908                    Slog.i(TAG, "Removing old permission: " + bp.name
6909                            + " from package " + bp.sourcePackage);
6910                    flags |= UPDATE_PERMISSIONS_ALL;
6911                    it.remove();
6912                }
6913            }
6914        }
6915
6916        // Now update the permissions for all packages, in particular
6917        // replace the granted permissions of the system packages.
6918        if ((flags&UPDATE_PERMISSIONS_ALL) != 0) {
6919            for (PackageParser.Package pkg : mPackages.values()) {
6920                if (pkg != pkgInfo) {
6921                    grantPermissionsLPw(pkg, (flags&UPDATE_PERMISSIONS_REPLACE_ALL) != 0,
6922                            changingPkg);
6923                }
6924            }
6925        }
6926
6927        if (pkgInfo != null) {
6928            grantPermissionsLPw(pkgInfo, (flags&UPDATE_PERMISSIONS_REPLACE_PKG) != 0, changingPkg);
6929        }
6930    }
6931
6932    private void grantPermissionsLPw(PackageParser.Package pkg, boolean replace,
6933            String packageOfInterest) {
6934        final PackageSetting ps = (PackageSetting) pkg.mExtras;
6935        if (ps == null) {
6936            return;
6937        }
6938        final GrantedPermissions gp = ps.sharedUser != null ? ps.sharedUser : ps;
6939        ArraySet<String> origPermissions = gp.grantedPermissions;
6940        boolean changedPermission = false;
6941
6942        if (replace) {
6943            ps.permissionsFixed = false;
6944            if (gp == ps) {
6945                origPermissions = new ArraySet<String>(gp.grantedPermissions);
6946                gp.grantedPermissions.clear();
6947                gp.gids = mGlobalGids;
6948            }
6949        }
6950
6951        if (gp.gids == null) {
6952            gp.gids = mGlobalGids;
6953        }
6954
6955        final int N = pkg.requestedPermissions.size();
6956        for (int i=0; i<N; i++) {
6957            final String name = pkg.requestedPermissions.get(i);
6958            final boolean required = pkg.requestedPermissionsRequired.get(i);
6959            final BasePermission bp = mSettings.mPermissions.get(name);
6960            if (DEBUG_INSTALL) {
6961                if (gp != ps) {
6962                    Log.i(TAG, "Package " + pkg.packageName + " checking " + name + ": " + bp);
6963                }
6964            }
6965
6966            if (bp == null || bp.packageSetting == null) {
6967                if (packageOfInterest == null || packageOfInterest.equals(pkg.packageName)) {
6968                    Slog.w(TAG, "Unknown permission " + name
6969                            + " in package " + pkg.packageName);
6970                }
6971                continue;
6972            }
6973
6974            final String perm = bp.name;
6975            boolean allowed;
6976            boolean allowedSig = false;
6977            if ((bp.protectionLevel&PermissionInfo.PROTECTION_FLAG_APPOP) != 0) {
6978                // Keep track of app op permissions.
6979                ArraySet<String> pkgs = mAppOpPermissionPackages.get(bp.name);
6980                if (pkgs == null) {
6981                    pkgs = new ArraySet<>();
6982                    mAppOpPermissionPackages.put(bp.name, pkgs);
6983                }
6984                pkgs.add(pkg.packageName);
6985            }
6986            final int level = bp.protectionLevel & PermissionInfo.PROTECTION_MASK_BASE;
6987            if (level == PermissionInfo.PROTECTION_NORMAL
6988                    || level == PermissionInfo.PROTECTION_DANGEROUS) {
6989                // We grant a normal or dangerous permission if any of the following
6990                // are true:
6991                // 1) The permission is required
6992                // 2) The permission is optional, but was granted in the past
6993                // 3) The permission is optional, but was requested by an
6994                //    app in /system (not /data)
6995                //
6996                // Otherwise, reject the permission.
6997                allowed = (required || origPermissions.contains(perm)
6998                        || (isSystemApp(ps) && !isUpdatedSystemApp(ps)));
6999            } else if (bp.packageSetting == null) {
7000                // This permission is invalid; skip it.
7001                allowed = false;
7002            } else if (level == PermissionInfo.PROTECTION_SIGNATURE) {
7003                allowed = grantSignaturePermission(perm, pkg, bp, origPermissions);
7004                if (allowed) {
7005                    allowedSig = true;
7006                }
7007            } else {
7008                allowed = false;
7009            }
7010            if (DEBUG_INSTALL) {
7011                if (gp != ps) {
7012                    Log.i(TAG, "Package " + pkg.packageName + " granting " + perm);
7013                }
7014            }
7015            if (allowed) {
7016                if (!isSystemApp(ps) && ps.permissionsFixed) {
7017                    // If this is an existing, non-system package, then
7018                    // we can't add any new permissions to it.
7019                    if (!allowedSig && !gp.grantedPermissions.contains(perm)) {
7020                        // Except...  if this is a permission that was added
7021                        // to the platform (note: need to only do this when
7022                        // updating the platform).
7023                        allowed = isNewPlatformPermissionForPackage(perm, pkg);
7024                    }
7025                }
7026                if (allowed) {
7027                    if (!gp.grantedPermissions.contains(perm)) {
7028                        changedPermission = true;
7029                        gp.grantedPermissions.add(perm);
7030                        gp.gids = appendInts(gp.gids, bp.gids);
7031                    } else if (!ps.haveGids) {
7032                        gp.gids = appendInts(gp.gids, bp.gids);
7033                    }
7034                } else {
7035                    if (packageOfInterest == null || packageOfInterest.equals(pkg.packageName)) {
7036                        Slog.w(TAG, "Not granting permission " + perm
7037                                + " to package " + pkg.packageName
7038                                + " because it was previously installed without");
7039                    }
7040                }
7041            } else {
7042                if (gp.grantedPermissions.remove(perm)) {
7043                    changedPermission = true;
7044                    gp.gids = removeInts(gp.gids, bp.gids);
7045                    Slog.i(TAG, "Un-granting permission " + perm
7046                            + " from package " + pkg.packageName
7047                            + " (protectionLevel=" + bp.protectionLevel
7048                            + " flags=0x" + Integer.toHexString(pkg.applicationInfo.flags)
7049                            + ")");
7050                } else if ((bp.protectionLevel&PermissionInfo.PROTECTION_FLAG_APPOP) == 0) {
7051                    // Don't print warning for app op permissions, since it is fine for them
7052                    // not to be granted, there is a UI for the user to decide.
7053                    if (packageOfInterest == null || packageOfInterest.equals(pkg.packageName)) {
7054                        Slog.w(TAG, "Not granting permission " + perm
7055                                + " to package " + pkg.packageName
7056                                + " (protectionLevel=" + bp.protectionLevel
7057                                + " flags=0x" + Integer.toHexString(pkg.applicationInfo.flags)
7058                                + ")");
7059                    }
7060                }
7061            }
7062        }
7063
7064        if ((changedPermission || replace) && !ps.permissionsFixed &&
7065                !isSystemApp(ps) || isUpdatedSystemApp(ps)){
7066            // This is the first that we have heard about this package, so the
7067            // permissions we have now selected are fixed until explicitly
7068            // changed.
7069            ps.permissionsFixed = true;
7070        }
7071        ps.haveGids = true;
7072    }
7073
7074    private boolean isNewPlatformPermissionForPackage(String perm, PackageParser.Package pkg) {
7075        boolean allowed = false;
7076        final int NP = PackageParser.NEW_PERMISSIONS.length;
7077        for (int ip=0; ip<NP; ip++) {
7078            final PackageParser.NewPermissionInfo npi
7079                    = PackageParser.NEW_PERMISSIONS[ip];
7080            if (npi.name.equals(perm)
7081                    && pkg.applicationInfo.targetSdkVersion < npi.sdkVersion) {
7082                allowed = true;
7083                Log.i(TAG, "Auto-granting " + perm + " to old pkg "
7084                        + pkg.packageName);
7085                break;
7086            }
7087        }
7088        return allowed;
7089    }
7090
7091    private boolean grantSignaturePermission(String perm, PackageParser.Package pkg,
7092                                          BasePermission bp, ArraySet<String> origPermissions) {
7093        boolean allowed;
7094        allowed = (compareSignatures(
7095                bp.packageSetting.signatures.mSignatures, pkg.mSignatures)
7096                        == PackageManager.SIGNATURE_MATCH)
7097                || (compareSignatures(mPlatformPackage.mSignatures, pkg.mSignatures)
7098                        == PackageManager.SIGNATURE_MATCH);
7099        if (!allowed && (bp.protectionLevel
7100                & PermissionInfo.PROTECTION_FLAG_SYSTEM) != 0) {
7101            if (isSystemApp(pkg)) {
7102                // For updated system applications, a system permission
7103                // is granted only if it had been defined by the original application.
7104                if (isUpdatedSystemApp(pkg)) {
7105                    final PackageSetting sysPs = mSettings
7106                            .getDisabledSystemPkgLPr(pkg.packageName);
7107                    final GrantedPermissions origGp = sysPs.sharedUser != null
7108                            ? sysPs.sharedUser : sysPs;
7109
7110                    if (origGp.grantedPermissions.contains(perm)) {
7111                        // If the original was granted this permission, we take
7112                        // that grant decision as read and propagate it to the
7113                        // update.
7114                        allowed = true;
7115                    } else {
7116                        // The system apk may have been updated with an older
7117                        // version of the one on the data partition, but which
7118                        // granted a new system permission that it didn't have
7119                        // before.  In this case we do want to allow the app to
7120                        // now get the new permission if the ancestral apk is
7121                        // privileged to get it.
7122                        if (sysPs.pkg != null && sysPs.isPrivileged()) {
7123                            for (int j=0;
7124                                    j<sysPs.pkg.requestedPermissions.size(); j++) {
7125                                if (perm.equals(
7126                                        sysPs.pkg.requestedPermissions.get(j))) {
7127                                    allowed = true;
7128                                    break;
7129                                }
7130                            }
7131                        }
7132                    }
7133                } else {
7134                    allowed = isPrivilegedApp(pkg);
7135                }
7136            }
7137        }
7138        if (!allowed && (bp.protectionLevel
7139                & PermissionInfo.PROTECTION_FLAG_DEVELOPMENT) != 0) {
7140            // For development permissions, a development permission
7141            // is granted only if it was already granted.
7142            allowed = origPermissions.contains(perm);
7143        }
7144        return allowed;
7145    }
7146
7147    final class ActivityIntentResolver
7148            extends IntentResolver<PackageParser.ActivityIntentInfo, ResolveInfo> {
7149        public List<ResolveInfo> queryIntent(Intent intent, String resolvedType,
7150                boolean defaultOnly, int userId) {
7151            if (!sUserManager.exists(userId)) return null;
7152            mFlags = defaultOnly ? PackageManager.MATCH_DEFAULT_ONLY : 0;
7153            return super.queryIntent(intent, resolvedType, defaultOnly, userId);
7154        }
7155
7156        public List<ResolveInfo> queryIntent(Intent intent, String resolvedType, int flags,
7157                int userId) {
7158            if (!sUserManager.exists(userId)) return null;
7159            mFlags = flags;
7160            return super.queryIntent(intent, resolvedType,
7161                    (flags & PackageManager.MATCH_DEFAULT_ONLY) != 0, userId);
7162        }
7163
7164        public List<ResolveInfo> queryIntentForPackage(Intent intent, String resolvedType,
7165                int flags, ArrayList<PackageParser.Activity> packageActivities, int userId) {
7166            if (!sUserManager.exists(userId)) return null;
7167            if (packageActivities == null) {
7168                return null;
7169            }
7170            mFlags = flags;
7171            final boolean defaultOnly = (flags&PackageManager.MATCH_DEFAULT_ONLY) != 0;
7172            final int N = packageActivities.size();
7173            ArrayList<PackageParser.ActivityIntentInfo[]> listCut =
7174                new ArrayList<PackageParser.ActivityIntentInfo[]>(N);
7175
7176            ArrayList<PackageParser.ActivityIntentInfo> intentFilters;
7177            for (int i = 0; i < N; ++i) {
7178                intentFilters = packageActivities.get(i).intents;
7179                if (intentFilters != null && intentFilters.size() > 0) {
7180                    PackageParser.ActivityIntentInfo[] array =
7181                            new PackageParser.ActivityIntentInfo[intentFilters.size()];
7182                    intentFilters.toArray(array);
7183                    listCut.add(array);
7184                }
7185            }
7186            return super.queryIntentFromList(intent, resolvedType, defaultOnly, listCut, userId);
7187        }
7188
7189        public final void addActivity(PackageParser.Activity a, String type) {
7190            final boolean systemApp = isSystemApp(a.info.applicationInfo);
7191            mActivities.put(a.getComponentName(), a);
7192            if (DEBUG_SHOW_INFO)
7193                Log.v(
7194                TAG, "  " + type + " " +
7195                (a.info.nonLocalizedLabel != null ? a.info.nonLocalizedLabel : a.info.name) + ":");
7196            if (DEBUG_SHOW_INFO)
7197                Log.v(TAG, "    Class=" + a.info.name);
7198            final int NI = a.intents.size();
7199            for (int j=0; j<NI; j++) {
7200                PackageParser.ActivityIntentInfo intent = a.intents.get(j);
7201                if (!systemApp && intent.getPriority() > 0 && "activity".equals(type)) {
7202                    intent.setPriority(0);
7203                    Log.w(TAG, "Package " + a.info.applicationInfo.packageName + " has activity "
7204                            + a.className + " with priority > 0, forcing to 0");
7205                }
7206                if (DEBUG_SHOW_INFO) {
7207                    Log.v(TAG, "    IntentFilter:");
7208                    intent.dump(new LogPrinter(Log.VERBOSE, TAG), "      ");
7209                }
7210                if (!intent.debugCheck()) {
7211                    Log.w(TAG, "==> For Activity " + a.info.name);
7212                }
7213                addFilter(intent);
7214            }
7215        }
7216
7217        public final void removeActivity(PackageParser.Activity a, String type) {
7218            mActivities.remove(a.getComponentName());
7219            if (DEBUG_SHOW_INFO) {
7220                Log.v(TAG, "  " + type + " "
7221                        + (a.info.nonLocalizedLabel != null ? a.info.nonLocalizedLabel
7222                                : a.info.name) + ":");
7223                Log.v(TAG, "    Class=" + a.info.name);
7224            }
7225            final int NI = a.intents.size();
7226            for (int j=0; j<NI; j++) {
7227                PackageParser.ActivityIntentInfo intent = a.intents.get(j);
7228                if (DEBUG_SHOW_INFO) {
7229                    Log.v(TAG, "    IntentFilter:");
7230                    intent.dump(new LogPrinter(Log.VERBOSE, TAG), "      ");
7231                }
7232                removeFilter(intent);
7233            }
7234        }
7235
7236        @Override
7237        protected boolean allowFilterResult(
7238                PackageParser.ActivityIntentInfo filter, List<ResolveInfo> dest) {
7239            ActivityInfo filterAi = filter.activity.info;
7240            for (int i=dest.size()-1; i>=0; i--) {
7241                ActivityInfo destAi = dest.get(i).activityInfo;
7242                if (destAi.name == filterAi.name
7243                        && destAi.packageName == filterAi.packageName) {
7244                    return false;
7245                }
7246            }
7247            return true;
7248        }
7249
7250        @Override
7251        protected ActivityIntentInfo[] newArray(int size) {
7252            return new ActivityIntentInfo[size];
7253        }
7254
7255        @Override
7256        protected boolean isFilterStopped(PackageParser.ActivityIntentInfo filter, int userId) {
7257            if (!sUserManager.exists(userId)) return true;
7258            PackageParser.Package p = filter.activity.owner;
7259            if (p != null) {
7260                PackageSetting ps = (PackageSetting)p.mExtras;
7261                if (ps != null) {
7262                    // System apps are never considered stopped for purposes of
7263                    // filtering, because there may be no way for the user to
7264                    // actually re-launch them.
7265                    return (ps.pkgFlags&ApplicationInfo.FLAG_SYSTEM) == 0
7266                            && ps.getStopped(userId);
7267                }
7268            }
7269            return false;
7270        }
7271
7272        @Override
7273        protected boolean isPackageForFilter(String packageName,
7274                PackageParser.ActivityIntentInfo info) {
7275            return packageName.equals(info.activity.owner.packageName);
7276        }
7277
7278        @Override
7279        protected ResolveInfo newResult(PackageParser.ActivityIntentInfo info,
7280                int match, int userId) {
7281            if (!sUserManager.exists(userId)) return null;
7282            if (!mSettings.isEnabledLPr(info.activity.info, mFlags, userId)) {
7283                return null;
7284            }
7285            final PackageParser.Activity activity = info.activity;
7286            if (mSafeMode && (activity.info.applicationInfo.flags
7287                    &ApplicationInfo.FLAG_SYSTEM) == 0) {
7288                return null;
7289            }
7290            PackageSetting ps = (PackageSetting) activity.owner.mExtras;
7291            if (ps == null) {
7292                return null;
7293            }
7294            ActivityInfo ai = PackageParser.generateActivityInfo(activity, mFlags,
7295                    ps.readUserState(userId), userId);
7296            if (ai == null) {
7297                return null;
7298            }
7299            final ResolveInfo res = new ResolveInfo();
7300            res.activityInfo = ai;
7301            if ((mFlags&PackageManager.GET_RESOLVED_FILTER) != 0) {
7302                res.filter = info;
7303            }
7304            res.priority = info.getPriority();
7305            res.preferredOrder = activity.owner.mPreferredOrder;
7306            //System.out.println("Result: " + res.activityInfo.className +
7307            //                   " = " + res.priority);
7308            res.match = match;
7309            res.isDefault = info.hasDefault;
7310            res.labelRes = info.labelRes;
7311            res.nonLocalizedLabel = info.nonLocalizedLabel;
7312            if (userNeedsBadging(userId)) {
7313                res.noResourceId = true;
7314            } else {
7315                res.icon = info.icon;
7316            }
7317            res.system = isSystemApp(res.activityInfo.applicationInfo);
7318            return res;
7319        }
7320
7321        @Override
7322        protected void sortResults(List<ResolveInfo> results) {
7323            Collections.sort(results, mResolvePrioritySorter);
7324        }
7325
7326        @Override
7327        protected void dumpFilter(PrintWriter out, String prefix,
7328                PackageParser.ActivityIntentInfo filter) {
7329            out.print(prefix); out.print(
7330                    Integer.toHexString(System.identityHashCode(filter.activity)));
7331                    out.print(' ');
7332                    filter.activity.printComponentShortName(out);
7333                    out.print(" filter ");
7334                    out.println(Integer.toHexString(System.identityHashCode(filter)));
7335        }
7336
7337//        List<ResolveInfo> filterEnabled(List<ResolveInfo> resolveInfoList) {
7338//            final Iterator<ResolveInfo> i = resolveInfoList.iterator();
7339//            final List<ResolveInfo> retList = Lists.newArrayList();
7340//            while (i.hasNext()) {
7341//                final ResolveInfo resolveInfo = i.next();
7342//                if (isEnabledLP(resolveInfo.activityInfo)) {
7343//                    retList.add(resolveInfo);
7344//                }
7345//            }
7346//            return retList;
7347//        }
7348
7349        // Keys are String (activity class name), values are Activity.
7350        private final ArrayMap<ComponentName, PackageParser.Activity> mActivities
7351                = new ArrayMap<ComponentName, PackageParser.Activity>();
7352        private int mFlags;
7353    }
7354
7355    private final class ServiceIntentResolver
7356            extends IntentResolver<PackageParser.ServiceIntentInfo, ResolveInfo> {
7357        public List<ResolveInfo> queryIntent(Intent intent, String resolvedType,
7358                boolean defaultOnly, int userId) {
7359            mFlags = defaultOnly ? PackageManager.MATCH_DEFAULT_ONLY : 0;
7360            return super.queryIntent(intent, resolvedType, defaultOnly, userId);
7361        }
7362
7363        public List<ResolveInfo> queryIntent(Intent intent, String resolvedType, int flags,
7364                int userId) {
7365            if (!sUserManager.exists(userId)) return null;
7366            mFlags = flags;
7367            return super.queryIntent(intent, resolvedType,
7368                    (flags & PackageManager.MATCH_DEFAULT_ONLY) != 0, userId);
7369        }
7370
7371        public List<ResolveInfo> queryIntentForPackage(Intent intent, String resolvedType,
7372                int flags, ArrayList<PackageParser.Service> packageServices, int userId) {
7373            if (!sUserManager.exists(userId)) return null;
7374            if (packageServices == null) {
7375                return null;
7376            }
7377            mFlags = flags;
7378            final boolean defaultOnly = (flags&PackageManager.MATCH_DEFAULT_ONLY) != 0;
7379            final int N = packageServices.size();
7380            ArrayList<PackageParser.ServiceIntentInfo[]> listCut =
7381                new ArrayList<PackageParser.ServiceIntentInfo[]>(N);
7382
7383            ArrayList<PackageParser.ServiceIntentInfo> intentFilters;
7384            for (int i = 0; i < N; ++i) {
7385                intentFilters = packageServices.get(i).intents;
7386                if (intentFilters != null && intentFilters.size() > 0) {
7387                    PackageParser.ServiceIntentInfo[] array =
7388                            new PackageParser.ServiceIntentInfo[intentFilters.size()];
7389                    intentFilters.toArray(array);
7390                    listCut.add(array);
7391                }
7392            }
7393            return super.queryIntentFromList(intent, resolvedType, defaultOnly, listCut, userId);
7394        }
7395
7396        public final void addService(PackageParser.Service s) {
7397            mServices.put(s.getComponentName(), s);
7398            if (DEBUG_SHOW_INFO) {
7399                Log.v(TAG, "  "
7400                        + (s.info.nonLocalizedLabel != null
7401                        ? s.info.nonLocalizedLabel : s.info.name) + ":");
7402                Log.v(TAG, "    Class=" + s.info.name);
7403            }
7404            final int NI = s.intents.size();
7405            int j;
7406            for (j=0; j<NI; j++) {
7407                PackageParser.ServiceIntentInfo intent = s.intents.get(j);
7408                if (DEBUG_SHOW_INFO) {
7409                    Log.v(TAG, "    IntentFilter:");
7410                    intent.dump(new LogPrinter(Log.VERBOSE, TAG), "      ");
7411                }
7412                if (!intent.debugCheck()) {
7413                    Log.w(TAG, "==> For Service " + s.info.name);
7414                }
7415                addFilter(intent);
7416            }
7417        }
7418
7419        public final void removeService(PackageParser.Service s) {
7420            mServices.remove(s.getComponentName());
7421            if (DEBUG_SHOW_INFO) {
7422                Log.v(TAG, "  " + (s.info.nonLocalizedLabel != null
7423                        ? s.info.nonLocalizedLabel : s.info.name) + ":");
7424                Log.v(TAG, "    Class=" + s.info.name);
7425            }
7426            final int NI = s.intents.size();
7427            int j;
7428            for (j=0; j<NI; j++) {
7429                PackageParser.ServiceIntentInfo intent = s.intents.get(j);
7430                if (DEBUG_SHOW_INFO) {
7431                    Log.v(TAG, "    IntentFilter:");
7432                    intent.dump(new LogPrinter(Log.VERBOSE, TAG), "      ");
7433                }
7434                removeFilter(intent);
7435            }
7436        }
7437
7438        @Override
7439        protected boolean allowFilterResult(
7440                PackageParser.ServiceIntentInfo filter, List<ResolveInfo> dest) {
7441            ServiceInfo filterSi = filter.service.info;
7442            for (int i=dest.size()-1; i>=0; i--) {
7443                ServiceInfo destAi = dest.get(i).serviceInfo;
7444                if (destAi.name == filterSi.name
7445                        && destAi.packageName == filterSi.packageName) {
7446                    return false;
7447                }
7448            }
7449            return true;
7450        }
7451
7452        @Override
7453        protected PackageParser.ServiceIntentInfo[] newArray(int size) {
7454            return new PackageParser.ServiceIntentInfo[size];
7455        }
7456
7457        @Override
7458        protected boolean isFilterStopped(PackageParser.ServiceIntentInfo filter, int userId) {
7459            if (!sUserManager.exists(userId)) return true;
7460            PackageParser.Package p = filter.service.owner;
7461            if (p != null) {
7462                PackageSetting ps = (PackageSetting)p.mExtras;
7463                if (ps != null) {
7464                    // System apps are never considered stopped for purposes of
7465                    // filtering, because there may be no way for the user to
7466                    // actually re-launch them.
7467                    return (ps.pkgFlags & ApplicationInfo.FLAG_SYSTEM) == 0
7468                            && ps.getStopped(userId);
7469                }
7470            }
7471            return false;
7472        }
7473
7474        @Override
7475        protected boolean isPackageForFilter(String packageName,
7476                PackageParser.ServiceIntentInfo info) {
7477            return packageName.equals(info.service.owner.packageName);
7478        }
7479
7480        @Override
7481        protected ResolveInfo newResult(PackageParser.ServiceIntentInfo filter,
7482                int match, int userId) {
7483            if (!sUserManager.exists(userId)) return null;
7484            final PackageParser.ServiceIntentInfo info = (PackageParser.ServiceIntentInfo)filter;
7485            if (!mSettings.isEnabledLPr(info.service.info, mFlags, userId)) {
7486                return null;
7487            }
7488            final PackageParser.Service service = info.service;
7489            if (mSafeMode && (service.info.applicationInfo.flags
7490                    &ApplicationInfo.FLAG_SYSTEM) == 0) {
7491                return null;
7492            }
7493            PackageSetting ps = (PackageSetting) service.owner.mExtras;
7494            if (ps == null) {
7495                return null;
7496            }
7497            ServiceInfo si = PackageParser.generateServiceInfo(service, mFlags,
7498                    ps.readUserState(userId), userId);
7499            if (si == null) {
7500                return null;
7501            }
7502            final ResolveInfo res = new ResolveInfo();
7503            res.serviceInfo = si;
7504            if ((mFlags&PackageManager.GET_RESOLVED_FILTER) != 0) {
7505                res.filter = filter;
7506            }
7507            res.priority = info.getPriority();
7508            res.preferredOrder = service.owner.mPreferredOrder;
7509            //System.out.println("Result: " + res.activityInfo.className +
7510            //                   " = " + res.priority);
7511            res.match = match;
7512            res.isDefault = info.hasDefault;
7513            res.labelRes = info.labelRes;
7514            res.nonLocalizedLabel = info.nonLocalizedLabel;
7515            res.icon = info.icon;
7516            res.system = isSystemApp(res.serviceInfo.applicationInfo);
7517            return res;
7518        }
7519
7520        @Override
7521        protected void sortResults(List<ResolveInfo> results) {
7522            Collections.sort(results, mResolvePrioritySorter);
7523        }
7524
7525        @Override
7526        protected void dumpFilter(PrintWriter out, String prefix,
7527                PackageParser.ServiceIntentInfo filter) {
7528            out.print(prefix); out.print(
7529                    Integer.toHexString(System.identityHashCode(filter.service)));
7530                    out.print(' ');
7531                    filter.service.printComponentShortName(out);
7532                    out.print(" filter ");
7533                    out.println(Integer.toHexString(System.identityHashCode(filter)));
7534        }
7535
7536//        List<ResolveInfo> filterEnabled(List<ResolveInfo> resolveInfoList) {
7537//            final Iterator<ResolveInfo> i = resolveInfoList.iterator();
7538//            final List<ResolveInfo> retList = Lists.newArrayList();
7539//            while (i.hasNext()) {
7540//                final ResolveInfo resolveInfo = (ResolveInfo) i;
7541//                if (isEnabledLP(resolveInfo.serviceInfo)) {
7542//                    retList.add(resolveInfo);
7543//                }
7544//            }
7545//            return retList;
7546//        }
7547
7548        // Keys are String (activity class name), values are Activity.
7549        private final ArrayMap<ComponentName, PackageParser.Service> mServices
7550                = new ArrayMap<ComponentName, PackageParser.Service>();
7551        private int mFlags;
7552    };
7553
7554    private final class ProviderIntentResolver
7555            extends IntentResolver<PackageParser.ProviderIntentInfo, ResolveInfo> {
7556        public List<ResolveInfo> queryIntent(Intent intent, String resolvedType,
7557                boolean defaultOnly, int userId) {
7558            mFlags = defaultOnly ? PackageManager.MATCH_DEFAULT_ONLY : 0;
7559            return super.queryIntent(intent, resolvedType, defaultOnly, userId);
7560        }
7561
7562        public List<ResolveInfo> queryIntent(Intent intent, String resolvedType, int flags,
7563                int userId) {
7564            if (!sUserManager.exists(userId))
7565                return null;
7566            mFlags = flags;
7567            return super.queryIntent(intent, resolvedType,
7568                    (flags & PackageManager.MATCH_DEFAULT_ONLY) != 0, userId);
7569        }
7570
7571        public List<ResolveInfo> queryIntentForPackage(Intent intent, String resolvedType,
7572                int flags, ArrayList<PackageParser.Provider> packageProviders, int userId) {
7573            if (!sUserManager.exists(userId))
7574                return null;
7575            if (packageProviders == null) {
7576                return null;
7577            }
7578            mFlags = flags;
7579            final boolean defaultOnly = (flags & PackageManager.MATCH_DEFAULT_ONLY) != 0;
7580            final int N = packageProviders.size();
7581            ArrayList<PackageParser.ProviderIntentInfo[]> listCut =
7582                    new ArrayList<PackageParser.ProviderIntentInfo[]>(N);
7583
7584            ArrayList<PackageParser.ProviderIntentInfo> intentFilters;
7585            for (int i = 0; i < N; ++i) {
7586                intentFilters = packageProviders.get(i).intents;
7587                if (intentFilters != null && intentFilters.size() > 0) {
7588                    PackageParser.ProviderIntentInfo[] array =
7589                            new PackageParser.ProviderIntentInfo[intentFilters.size()];
7590                    intentFilters.toArray(array);
7591                    listCut.add(array);
7592                }
7593            }
7594            return super.queryIntentFromList(intent, resolvedType, defaultOnly, listCut, userId);
7595        }
7596
7597        public final void addProvider(PackageParser.Provider p) {
7598            if (mProviders.containsKey(p.getComponentName())) {
7599                Slog.w(TAG, "Provider " + p.getComponentName() + " already defined; ignoring");
7600                return;
7601            }
7602
7603            mProviders.put(p.getComponentName(), p);
7604            if (DEBUG_SHOW_INFO) {
7605                Log.v(TAG, "  "
7606                        + (p.info.nonLocalizedLabel != null
7607                                ? p.info.nonLocalizedLabel : p.info.name) + ":");
7608                Log.v(TAG, "    Class=" + p.info.name);
7609            }
7610            final int NI = p.intents.size();
7611            int j;
7612            for (j = 0; j < NI; j++) {
7613                PackageParser.ProviderIntentInfo intent = p.intents.get(j);
7614                if (DEBUG_SHOW_INFO) {
7615                    Log.v(TAG, "    IntentFilter:");
7616                    intent.dump(new LogPrinter(Log.VERBOSE, TAG), "      ");
7617                }
7618                if (!intent.debugCheck()) {
7619                    Log.w(TAG, "==> For Provider " + p.info.name);
7620                }
7621                addFilter(intent);
7622            }
7623        }
7624
7625        public final void removeProvider(PackageParser.Provider p) {
7626            mProviders.remove(p.getComponentName());
7627            if (DEBUG_SHOW_INFO) {
7628                Log.v(TAG, "  " + (p.info.nonLocalizedLabel != null
7629                        ? p.info.nonLocalizedLabel : p.info.name) + ":");
7630                Log.v(TAG, "    Class=" + p.info.name);
7631            }
7632            final int NI = p.intents.size();
7633            int j;
7634            for (j = 0; j < NI; j++) {
7635                PackageParser.ProviderIntentInfo intent = p.intents.get(j);
7636                if (DEBUG_SHOW_INFO) {
7637                    Log.v(TAG, "    IntentFilter:");
7638                    intent.dump(new LogPrinter(Log.VERBOSE, TAG), "      ");
7639                }
7640                removeFilter(intent);
7641            }
7642        }
7643
7644        @Override
7645        protected boolean allowFilterResult(
7646                PackageParser.ProviderIntentInfo filter, List<ResolveInfo> dest) {
7647            ProviderInfo filterPi = filter.provider.info;
7648            for (int i = dest.size() - 1; i >= 0; i--) {
7649                ProviderInfo destPi = dest.get(i).providerInfo;
7650                if (destPi.name == filterPi.name
7651                        && destPi.packageName == filterPi.packageName) {
7652                    return false;
7653                }
7654            }
7655            return true;
7656        }
7657
7658        @Override
7659        protected PackageParser.ProviderIntentInfo[] newArray(int size) {
7660            return new PackageParser.ProviderIntentInfo[size];
7661        }
7662
7663        @Override
7664        protected boolean isFilterStopped(PackageParser.ProviderIntentInfo filter, int userId) {
7665            if (!sUserManager.exists(userId))
7666                return true;
7667            PackageParser.Package p = filter.provider.owner;
7668            if (p != null) {
7669                PackageSetting ps = (PackageSetting) p.mExtras;
7670                if (ps != null) {
7671                    // System apps are never considered stopped for purposes of
7672                    // filtering, because there may be no way for the user to
7673                    // actually re-launch them.
7674                    return (ps.pkgFlags & ApplicationInfo.FLAG_SYSTEM) == 0
7675                            && ps.getStopped(userId);
7676                }
7677            }
7678            return false;
7679        }
7680
7681        @Override
7682        protected boolean isPackageForFilter(String packageName,
7683                PackageParser.ProviderIntentInfo info) {
7684            return packageName.equals(info.provider.owner.packageName);
7685        }
7686
7687        @Override
7688        protected ResolveInfo newResult(PackageParser.ProviderIntentInfo filter,
7689                int match, int userId) {
7690            if (!sUserManager.exists(userId))
7691                return null;
7692            final PackageParser.ProviderIntentInfo info = filter;
7693            if (!mSettings.isEnabledLPr(info.provider.info, mFlags, userId)) {
7694                return null;
7695            }
7696            final PackageParser.Provider provider = info.provider;
7697            if (mSafeMode && (provider.info.applicationInfo.flags
7698                    & ApplicationInfo.FLAG_SYSTEM) == 0) {
7699                return null;
7700            }
7701            PackageSetting ps = (PackageSetting) provider.owner.mExtras;
7702            if (ps == null) {
7703                return null;
7704            }
7705            ProviderInfo pi = PackageParser.generateProviderInfo(provider, mFlags,
7706                    ps.readUserState(userId), userId);
7707            if (pi == null) {
7708                return null;
7709            }
7710            final ResolveInfo res = new ResolveInfo();
7711            res.providerInfo = pi;
7712            if ((mFlags & PackageManager.GET_RESOLVED_FILTER) != 0) {
7713                res.filter = filter;
7714            }
7715            res.priority = info.getPriority();
7716            res.preferredOrder = provider.owner.mPreferredOrder;
7717            res.match = match;
7718            res.isDefault = info.hasDefault;
7719            res.labelRes = info.labelRes;
7720            res.nonLocalizedLabel = info.nonLocalizedLabel;
7721            res.icon = info.icon;
7722            res.system = isSystemApp(res.providerInfo.applicationInfo);
7723            return res;
7724        }
7725
7726        @Override
7727        protected void sortResults(List<ResolveInfo> results) {
7728            Collections.sort(results, mResolvePrioritySorter);
7729        }
7730
7731        @Override
7732        protected void dumpFilter(PrintWriter out, String prefix,
7733                PackageParser.ProviderIntentInfo filter) {
7734            out.print(prefix);
7735            out.print(
7736                    Integer.toHexString(System.identityHashCode(filter.provider)));
7737            out.print(' ');
7738            filter.provider.printComponentShortName(out);
7739            out.print(" filter ");
7740            out.println(Integer.toHexString(System.identityHashCode(filter)));
7741        }
7742
7743        private final ArrayMap<ComponentName, PackageParser.Provider> mProviders
7744                = new ArrayMap<ComponentName, PackageParser.Provider>();
7745        private int mFlags;
7746    };
7747
7748    private static final Comparator<ResolveInfo> mResolvePrioritySorter =
7749            new Comparator<ResolveInfo>() {
7750        public int compare(ResolveInfo r1, ResolveInfo r2) {
7751            int v1 = r1.priority;
7752            int v2 = r2.priority;
7753            //System.out.println("Comparing: q1=" + q1 + " q2=" + q2);
7754            if (v1 != v2) {
7755                return (v1 > v2) ? -1 : 1;
7756            }
7757            v1 = r1.preferredOrder;
7758            v2 = r2.preferredOrder;
7759            if (v1 != v2) {
7760                return (v1 > v2) ? -1 : 1;
7761            }
7762            if (r1.isDefault != r2.isDefault) {
7763                return r1.isDefault ? -1 : 1;
7764            }
7765            v1 = r1.match;
7766            v2 = r2.match;
7767            //System.out.println("Comparing: m1=" + m1 + " m2=" + m2);
7768            if (v1 != v2) {
7769                return (v1 > v2) ? -1 : 1;
7770            }
7771            if (r1.system != r2.system) {
7772                return r1.system ? -1 : 1;
7773            }
7774            return 0;
7775        }
7776    };
7777
7778    private static final Comparator<ProviderInfo> mProviderInitOrderSorter =
7779            new Comparator<ProviderInfo>() {
7780        public int compare(ProviderInfo p1, ProviderInfo p2) {
7781            final int v1 = p1.initOrder;
7782            final int v2 = p2.initOrder;
7783            return (v1 > v2) ? -1 : ((v1 < v2) ? 1 : 0);
7784        }
7785    };
7786
7787    static final void sendPackageBroadcast(String action, String pkg,
7788            Bundle extras, String targetPkg, IIntentReceiver finishedReceiver,
7789            int[] userIds) {
7790        IActivityManager am = ActivityManagerNative.getDefault();
7791        if (am != null) {
7792            try {
7793                if (userIds == null) {
7794                    userIds = am.getRunningUserIds();
7795                }
7796                for (int id : userIds) {
7797                    final Intent intent = new Intent(action,
7798                            pkg != null ? Uri.fromParts("package", pkg, null) : null);
7799                    if (extras != null) {
7800                        intent.putExtras(extras);
7801                    }
7802                    if (targetPkg != null) {
7803                        intent.setPackage(targetPkg);
7804                    }
7805                    // Modify the UID when posting to other users
7806                    int uid = intent.getIntExtra(Intent.EXTRA_UID, -1);
7807                    if (uid > 0 && UserHandle.getUserId(uid) != id) {
7808                        uid = UserHandle.getUid(id, UserHandle.getAppId(uid));
7809                        intent.putExtra(Intent.EXTRA_UID, uid);
7810                    }
7811                    intent.putExtra(Intent.EXTRA_USER_HANDLE, id);
7812                    intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT);
7813                    if (DEBUG_BROADCASTS) {
7814                        RuntimeException here = new RuntimeException("here");
7815                        here.fillInStackTrace();
7816                        Slog.d(TAG, "Sending to user " + id + ": "
7817                                + intent.toShortString(false, true, false, false)
7818                                + " " + intent.getExtras(), here);
7819                    }
7820                    am.broadcastIntent(null, intent, null, finishedReceiver,
7821                            0, null, null, null, android.app.AppOpsManager.OP_NONE,
7822                            finishedReceiver != null, false, id);
7823                }
7824            } catch (RemoteException ex) {
7825            }
7826        }
7827    }
7828
7829    /**
7830     * Check if the external storage media is available. This is true if there
7831     * is a mounted external storage medium or if the external storage is
7832     * emulated.
7833     */
7834    private boolean isExternalMediaAvailable() {
7835        return mMediaMounted || Environment.isExternalStorageEmulated();
7836    }
7837
7838    @Override
7839    public PackageCleanItem nextPackageToClean(PackageCleanItem lastPackage) {
7840        // writer
7841        synchronized (mPackages) {
7842            if (!isExternalMediaAvailable()) {
7843                // If the external storage is no longer mounted at this point,
7844                // the caller may not have been able to delete all of this
7845                // packages files and can not delete any more.  Bail.
7846                return null;
7847            }
7848            final ArrayList<PackageCleanItem> pkgs = mSettings.mPackagesToBeCleaned;
7849            if (lastPackage != null) {
7850                pkgs.remove(lastPackage);
7851            }
7852            if (pkgs.size() > 0) {
7853                return pkgs.get(0);
7854            }
7855        }
7856        return null;
7857    }
7858
7859    void schedulePackageCleaning(String packageName, int userId, boolean andCode) {
7860        final Message msg = mHandler.obtainMessage(START_CLEANING_PACKAGE,
7861                userId, andCode ? 1 : 0, packageName);
7862        if (mSystemReady) {
7863            msg.sendToTarget();
7864        } else {
7865            if (mPostSystemReadyMessages == null) {
7866                mPostSystemReadyMessages = new ArrayList<>();
7867            }
7868            mPostSystemReadyMessages.add(msg);
7869        }
7870    }
7871
7872    void startCleaningPackages() {
7873        // reader
7874        synchronized (mPackages) {
7875            if (!isExternalMediaAvailable()) {
7876                return;
7877            }
7878            if (mSettings.mPackagesToBeCleaned.isEmpty()) {
7879                return;
7880            }
7881        }
7882        Intent intent = new Intent(PackageManager.ACTION_CLEAN_EXTERNAL_STORAGE);
7883        intent.setComponent(DEFAULT_CONTAINER_COMPONENT);
7884        IActivityManager am = ActivityManagerNative.getDefault();
7885        if (am != null) {
7886            try {
7887                am.startService(null, intent, null, UserHandle.USER_OWNER);
7888            } catch (RemoteException e) {
7889            }
7890        }
7891    }
7892
7893    @Override
7894    public void installPackage(String originPath, IPackageInstallObserver2 observer,
7895            int installFlags, String installerPackageName, VerificationParams verificationParams,
7896            String packageAbiOverride) {
7897        installPackageAsUser(originPath, observer, installFlags, installerPackageName, verificationParams,
7898                packageAbiOverride, UserHandle.getCallingUserId());
7899    }
7900
7901    @Override
7902    public void installPackageAsUser(String originPath, IPackageInstallObserver2 observer,
7903            int installFlags, String installerPackageName, VerificationParams verificationParams,
7904            String packageAbiOverride, int userId) {
7905        mContext.enforceCallingOrSelfPermission(android.Manifest.permission.INSTALL_PACKAGES, null);
7906
7907        final int callingUid = Binder.getCallingUid();
7908        enforceCrossUserPermission(callingUid, userId, true, true, "installPackageAsUser");
7909
7910        if (isUserRestricted(userId, UserManager.DISALLOW_INSTALL_APPS)) {
7911            try {
7912                if (observer != null) {
7913                    observer.onPackageInstalled("", INSTALL_FAILED_USER_RESTRICTED, null, null);
7914                }
7915            } catch (RemoteException re) {
7916            }
7917            return;
7918        }
7919
7920        if ((callingUid == Process.SHELL_UID) || (callingUid == Process.ROOT_UID)) {
7921            installFlags |= PackageManager.INSTALL_FROM_ADB;
7922
7923        } else {
7924            // Caller holds INSTALL_PACKAGES permission, so we're less strict
7925            // about installerPackageName.
7926
7927            installFlags &= ~PackageManager.INSTALL_FROM_ADB;
7928            installFlags &= ~PackageManager.INSTALL_ALL_USERS;
7929        }
7930
7931        UserHandle user;
7932        if ((installFlags & PackageManager.INSTALL_ALL_USERS) != 0) {
7933            user = UserHandle.ALL;
7934        } else {
7935            user = new UserHandle(userId);
7936        }
7937
7938        verificationParams.setInstallerUid(callingUid);
7939
7940        final File originFile = new File(originPath);
7941        final OriginInfo origin = OriginInfo.fromUntrustedFile(originFile);
7942
7943        final Message msg = mHandler.obtainMessage(INIT_COPY);
7944        msg.obj = new InstallParams(origin, observer, installFlags,
7945                installerPackageName, verificationParams, user, packageAbiOverride);
7946        mHandler.sendMessage(msg);
7947    }
7948
7949    void installStage(String packageName, File stagedDir, String stagedCid,
7950            IPackageInstallObserver2 observer, PackageInstaller.SessionParams params,
7951            String installerPackageName, int installerUid, UserHandle user) {
7952        final VerificationParams verifParams = new VerificationParams(null, params.originatingUri,
7953                params.referrerUri, installerUid, null);
7954
7955        final OriginInfo origin;
7956        if (stagedDir != null) {
7957            origin = OriginInfo.fromStagedFile(stagedDir);
7958        } else {
7959            origin = OriginInfo.fromStagedContainer(stagedCid);
7960        }
7961
7962        final Message msg = mHandler.obtainMessage(INIT_COPY);
7963        msg.obj = new InstallParams(origin, observer, params.installFlags,
7964                installerPackageName, verifParams, user, params.abiOverride);
7965        mHandler.sendMessage(msg);
7966    }
7967
7968    private void sendPackageAddedForUser(String packageName, PackageSetting pkgSetting, int userId) {
7969        Bundle extras = new Bundle(1);
7970        extras.putInt(Intent.EXTRA_UID, UserHandle.getUid(userId, pkgSetting.appId));
7971
7972        sendPackageBroadcast(Intent.ACTION_PACKAGE_ADDED,
7973                packageName, extras, null, null, new int[] {userId});
7974        try {
7975            IActivityManager am = ActivityManagerNative.getDefault();
7976            final boolean isSystem =
7977                    isSystemApp(pkgSetting) || isUpdatedSystemApp(pkgSetting);
7978            if (isSystem && am.isUserRunning(userId, false)) {
7979                // The just-installed/enabled app is bundled on the system, so presumed
7980                // to be able to run automatically without needing an explicit launch.
7981                // Send it a BOOT_COMPLETED if it would ordinarily have gotten one.
7982                Intent bcIntent = new Intent(Intent.ACTION_BOOT_COMPLETED)
7983                        .addFlags(Intent.FLAG_INCLUDE_STOPPED_PACKAGES)
7984                        .setPackage(packageName);
7985                am.broadcastIntent(null, bcIntent, null, null, 0, null, null, null,
7986                        android.app.AppOpsManager.OP_NONE, false, false, userId);
7987            }
7988        } catch (RemoteException e) {
7989            // shouldn't happen
7990            Slog.w(TAG, "Unable to bootstrap installed package", e);
7991        }
7992    }
7993
7994    @Override
7995    public boolean setApplicationHiddenSettingAsUser(String packageName, boolean hidden,
7996            int userId) {
7997        mContext.enforceCallingOrSelfPermission(android.Manifest.permission.MANAGE_USERS, null);
7998        PackageSetting pkgSetting;
7999        final int uid = Binder.getCallingUid();
8000        enforceCrossUserPermission(uid, userId, true, true,
8001                "setApplicationHiddenSetting for user " + userId);
8002
8003        if (hidden && isPackageDeviceAdmin(packageName, userId)) {
8004            Slog.w(TAG, "Not hiding package " + packageName + ": has active device admin");
8005            return false;
8006        }
8007
8008        long callingId = Binder.clearCallingIdentity();
8009        try {
8010            boolean sendAdded = false;
8011            boolean sendRemoved = false;
8012            // writer
8013            synchronized (mPackages) {
8014                pkgSetting = mSettings.mPackages.get(packageName);
8015                if (pkgSetting == null) {
8016                    return false;
8017                }
8018                if (pkgSetting.getHidden(userId) != hidden) {
8019                    pkgSetting.setHidden(hidden, userId);
8020                    mSettings.writePackageRestrictionsLPr(userId);
8021                    if (hidden) {
8022                        sendRemoved = true;
8023                    } else {
8024                        sendAdded = true;
8025                    }
8026                }
8027            }
8028            if (sendAdded) {
8029                sendPackageAddedForUser(packageName, pkgSetting, userId);
8030                return true;
8031            }
8032            if (sendRemoved) {
8033                killApplication(packageName, UserHandle.getUid(userId, pkgSetting.appId),
8034                        "hiding pkg");
8035                sendApplicationHiddenForUser(packageName, pkgSetting, userId);
8036            }
8037        } finally {
8038            Binder.restoreCallingIdentity(callingId);
8039        }
8040        return false;
8041    }
8042
8043    private void sendApplicationHiddenForUser(String packageName, PackageSetting pkgSetting,
8044            int userId) {
8045        final PackageRemovedInfo info = new PackageRemovedInfo();
8046        info.removedPackage = packageName;
8047        info.removedUsers = new int[] {userId};
8048        info.uid = UserHandle.getUid(userId, pkgSetting.appId);
8049        info.sendBroadcast(false, false, false);
8050    }
8051
8052    /**
8053     * Returns true if application is not found or there was an error. Otherwise it returns
8054     * the hidden state of the package for the given user.
8055     */
8056    @Override
8057    public boolean getApplicationHiddenSettingAsUser(String packageName, int userId) {
8058        mContext.enforceCallingOrSelfPermission(android.Manifest.permission.MANAGE_USERS, null);
8059        enforceCrossUserPermission(Binder.getCallingUid(), userId, true,
8060                false, "getApplicationHidden for user " + userId);
8061        PackageSetting pkgSetting;
8062        long callingId = Binder.clearCallingIdentity();
8063        try {
8064            // writer
8065            synchronized (mPackages) {
8066                pkgSetting = mSettings.mPackages.get(packageName);
8067                if (pkgSetting == null) {
8068                    return true;
8069                }
8070                return pkgSetting.getHidden(userId);
8071            }
8072        } finally {
8073            Binder.restoreCallingIdentity(callingId);
8074        }
8075    }
8076
8077    /**
8078     * @hide
8079     */
8080    @Override
8081    public int installExistingPackageAsUser(String packageName, int userId) {
8082        mContext.enforceCallingOrSelfPermission(android.Manifest.permission.INSTALL_PACKAGES,
8083                null);
8084        PackageSetting pkgSetting;
8085        final int uid = Binder.getCallingUid();
8086        enforceCrossUserPermission(uid, userId, true, true, "installExistingPackage for user "
8087                + userId);
8088        if (isUserRestricted(userId, UserManager.DISALLOW_INSTALL_APPS)) {
8089            return PackageManager.INSTALL_FAILED_USER_RESTRICTED;
8090        }
8091
8092        long callingId = Binder.clearCallingIdentity();
8093        try {
8094            boolean sendAdded = false;
8095            Bundle extras = new Bundle(1);
8096
8097            // writer
8098            synchronized (mPackages) {
8099                pkgSetting = mSettings.mPackages.get(packageName);
8100                if (pkgSetting == null) {
8101                    return PackageManager.INSTALL_FAILED_INVALID_URI;
8102                }
8103                if (!pkgSetting.getInstalled(userId)) {
8104                    pkgSetting.setInstalled(true, userId);
8105                    pkgSetting.setHidden(false, userId);
8106                    mSettings.writePackageRestrictionsLPr(userId);
8107                    sendAdded = true;
8108                }
8109            }
8110
8111            if (sendAdded) {
8112                sendPackageAddedForUser(packageName, pkgSetting, userId);
8113            }
8114        } finally {
8115            Binder.restoreCallingIdentity(callingId);
8116        }
8117
8118        return PackageManager.INSTALL_SUCCEEDED;
8119    }
8120
8121    boolean isUserRestricted(int userId, String restrictionKey) {
8122        Bundle restrictions = sUserManager.getUserRestrictions(userId);
8123        if (restrictions.getBoolean(restrictionKey, false)) {
8124            Log.w(TAG, "User is restricted: " + restrictionKey);
8125            return true;
8126        }
8127        return false;
8128    }
8129
8130    @Override
8131    public void verifyPendingInstall(int id, int verificationCode) throws RemoteException {
8132        mContext.enforceCallingOrSelfPermission(
8133                android.Manifest.permission.PACKAGE_VERIFICATION_AGENT,
8134                "Only package verification agents can verify applications");
8135
8136        final Message msg = mHandler.obtainMessage(PACKAGE_VERIFIED);
8137        final PackageVerificationResponse response = new PackageVerificationResponse(
8138                verificationCode, Binder.getCallingUid());
8139        msg.arg1 = id;
8140        msg.obj = response;
8141        mHandler.sendMessage(msg);
8142    }
8143
8144    @Override
8145    public void extendVerificationTimeout(int id, int verificationCodeAtTimeout,
8146            long millisecondsToDelay) {
8147        mContext.enforceCallingOrSelfPermission(
8148                android.Manifest.permission.PACKAGE_VERIFICATION_AGENT,
8149                "Only package verification agents can extend verification timeouts");
8150
8151        final PackageVerificationState state = mPendingVerification.get(id);
8152        final PackageVerificationResponse response = new PackageVerificationResponse(
8153                verificationCodeAtTimeout, Binder.getCallingUid());
8154
8155        if (millisecondsToDelay > PackageManager.MAXIMUM_VERIFICATION_TIMEOUT) {
8156            millisecondsToDelay = PackageManager.MAXIMUM_VERIFICATION_TIMEOUT;
8157        }
8158        if (millisecondsToDelay < 0) {
8159            millisecondsToDelay = 0;
8160        }
8161        if ((verificationCodeAtTimeout != PackageManager.VERIFICATION_ALLOW)
8162                && (verificationCodeAtTimeout != PackageManager.VERIFICATION_REJECT)) {
8163            verificationCodeAtTimeout = PackageManager.VERIFICATION_REJECT;
8164        }
8165
8166        if ((state != null) && !state.timeoutExtended()) {
8167            state.extendTimeout();
8168
8169            final Message msg = mHandler.obtainMessage(PACKAGE_VERIFIED);
8170            msg.arg1 = id;
8171            msg.obj = response;
8172            mHandler.sendMessageDelayed(msg, millisecondsToDelay);
8173        }
8174    }
8175
8176    private void broadcastPackageVerified(int verificationId, Uri packageUri,
8177            int verificationCode, UserHandle user) {
8178        final Intent intent = new Intent(Intent.ACTION_PACKAGE_VERIFIED);
8179        intent.setDataAndType(packageUri, PACKAGE_MIME_TYPE);
8180        intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
8181        intent.putExtra(PackageManager.EXTRA_VERIFICATION_ID, verificationId);
8182        intent.putExtra(PackageManager.EXTRA_VERIFICATION_RESULT, verificationCode);
8183
8184        mContext.sendBroadcastAsUser(intent, user,
8185                android.Manifest.permission.PACKAGE_VERIFICATION_AGENT);
8186    }
8187
8188    private ComponentName matchComponentForVerifier(String packageName,
8189            List<ResolveInfo> receivers) {
8190        ActivityInfo targetReceiver = null;
8191
8192        final int NR = receivers.size();
8193        for (int i = 0; i < NR; i++) {
8194            final ResolveInfo info = receivers.get(i);
8195            if (info.activityInfo == null) {
8196                continue;
8197            }
8198
8199            if (packageName.equals(info.activityInfo.packageName)) {
8200                targetReceiver = info.activityInfo;
8201                break;
8202            }
8203        }
8204
8205        if (targetReceiver == null) {
8206            return null;
8207        }
8208
8209        return new ComponentName(targetReceiver.packageName, targetReceiver.name);
8210    }
8211
8212    private List<ComponentName> matchVerifiers(PackageInfoLite pkgInfo,
8213            List<ResolveInfo> receivers, final PackageVerificationState verificationState) {
8214        if (pkgInfo.verifiers.length == 0) {
8215            return null;
8216        }
8217
8218        final int N = pkgInfo.verifiers.length;
8219        final List<ComponentName> sufficientVerifiers = new ArrayList<ComponentName>(N + 1);
8220        for (int i = 0; i < N; i++) {
8221            final VerifierInfo verifierInfo = pkgInfo.verifiers[i];
8222
8223            final ComponentName comp = matchComponentForVerifier(verifierInfo.packageName,
8224                    receivers);
8225            if (comp == null) {
8226                continue;
8227            }
8228
8229            final int verifierUid = getUidForVerifier(verifierInfo);
8230            if (verifierUid == -1) {
8231                continue;
8232            }
8233
8234            if (DEBUG_VERIFY) {
8235                Slog.d(TAG, "Added sufficient verifier " + verifierInfo.packageName
8236                        + " with the correct signature");
8237            }
8238            sufficientVerifiers.add(comp);
8239            verificationState.addSufficientVerifier(verifierUid);
8240        }
8241
8242        return sufficientVerifiers;
8243    }
8244
8245    private int getUidForVerifier(VerifierInfo verifierInfo) {
8246        synchronized (mPackages) {
8247            final PackageParser.Package pkg = mPackages.get(verifierInfo.packageName);
8248            if (pkg == null) {
8249                return -1;
8250            } else if (pkg.mSignatures.length != 1) {
8251                Slog.i(TAG, "Verifier package " + verifierInfo.packageName
8252                        + " has more than one signature; ignoring");
8253                return -1;
8254            }
8255
8256            /*
8257             * If the public key of the package's signature does not match
8258             * our expected public key, then this is a different package and
8259             * we should skip.
8260             */
8261
8262            final byte[] expectedPublicKey;
8263            try {
8264                final Signature verifierSig = pkg.mSignatures[0];
8265                final PublicKey publicKey = verifierSig.getPublicKey();
8266                expectedPublicKey = publicKey.getEncoded();
8267            } catch (CertificateException e) {
8268                return -1;
8269            }
8270
8271            final byte[] actualPublicKey = verifierInfo.publicKey.getEncoded();
8272
8273            if (!Arrays.equals(actualPublicKey, expectedPublicKey)) {
8274                Slog.i(TAG, "Verifier package " + verifierInfo.packageName
8275                        + " does not have the expected public key; ignoring");
8276                return -1;
8277            }
8278
8279            return pkg.applicationInfo.uid;
8280        }
8281    }
8282
8283    @Override
8284    public void finishPackageInstall(int token) {
8285        enforceSystemOrRoot("Only the system is allowed to finish installs");
8286
8287        if (DEBUG_INSTALL) {
8288            Slog.v(TAG, "BM finishing package install for " + token);
8289        }
8290
8291        final Message msg = mHandler.obtainMessage(POST_INSTALL, token, 0);
8292        mHandler.sendMessage(msg);
8293    }
8294
8295    /**
8296     * Get the verification agent timeout.
8297     *
8298     * @return verification timeout in milliseconds
8299     */
8300    private long getVerificationTimeout() {
8301        return android.provider.Settings.Global.getLong(mContext.getContentResolver(),
8302                android.provider.Settings.Global.PACKAGE_VERIFIER_TIMEOUT,
8303                DEFAULT_VERIFICATION_TIMEOUT);
8304    }
8305
8306    /**
8307     * Get the default verification agent response code.
8308     *
8309     * @return default verification response code
8310     */
8311    private int getDefaultVerificationResponse() {
8312        return android.provider.Settings.Global.getInt(mContext.getContentResolver(),
8313                android.provider.Settings.Global.PACKAGE_VERIFIER_DEFAULT_RESPONSE,
8314                DEFAULT_VERIFICATION_RESPONSE);
8315    }
8316
8317    /**
8318     * Check whether or not package verification has been enabled.
8319     *
8320     * @return true if verification should be performed
8321     */
8322    private boolean isVerificationEnabled(int userId, int installFlags) {
8323        if (!DEFAULT_VERIFY_ENABLE) {
8324            return false;
8325        }
8326
8327        boolean ensureVerifyAppsEnabled = isUserRestricted(userId, UserManager.ENSURE_VERIFY_APPS);
8328
8329        // Check if installing from ADB
8330        if ((installFlags & PackageManager.INSTALL_FROM_ADB) != 0) {
8331            // Do not run verification in a test harness environment
8332            if (ActivityManager.isRunningInTestHarness()) {
8333                return false;
8334            }
8335            if (ensureVerifyAppsEnabled) {
8336                return true;
8337            }
8338            // Check if the developer does not want package verification for ADB installs
8339            if (android.provider.Settings.Global.getInt(mContext.getContentResolver(),
8340                    android.provider.Settings.Global.PACKAGE_VERIFIER_INCLUDE_ADB, 1) == 0) {
8341                return false;
8342            }
8343        }
8344
8345        if (ensureVerifyAppsEnabled) {
8346            return true;
8347        }
8348
8349        return android.provider.Settings.Global.getInt(mContext.getContentResolver(),
8350                android.provider.Settings.Global.PACKAGE_VERIFIER_ENABLE, 1) == 1;
8351    }
8352
8353    /**
8354     * Get the "allow unknown sources" setting.
8355     *
8356     * @return the current "allow unknown sources" setting
8357     */
8358    private int getUnknownSourcesSettings() {
8359        return android.provider.Settings.Global.getInt(mContext.getContentResolver(),
8360                android.provider.Settings.Global.INSTALL_NON_MARKET_APPS,
8361                -1);
8362    }
8363
8364    @Override
8365    public void setInstallerPackageName(String targetPackage, String installerPackageName) {
8366        final int uid = Binder.getCallingUid();
8367        // writer
8368        synchronized (mPackages) {
8369            PackageSetting targetPackageSetting = mSettings.mPackages.get(targetPackage);
8370            if (targetPackageSetting == null) {
8371                throw new IllegalArgumentException("Unknown target package: " + targetPackage);
8372            }
8373
8374            PackageSetting installerPackageSetting;
8375            if (installerPackageName != null) {
8376                installerPackageSetting = mSettings.mPackages.get(installerPackageName);
8377                if (installerPackageSetting == null) {
8378                    throw new IllegalArgumentException("Unknown installer package: "
8379                            + installerPackageName);
8380                }
8381            } else {
8382                installerPackageSetting = null;
8383            }
8384
8385            Signature[] callerSignature;
8386            Object obj = mSettings.getUserIdLPr(uid);
8387            if (obj != null) {
8388                if (obj instanceof SharedUserSetting) {
8389                    callerSignature = ((SharedUserSetting)obj).signatures.mSignatures;
8390                } else if (obj instanceof PackageSetting) {
8391                    callerSignature = ((PackageSetting)obj).signatures.mSignatures;
8392                } else {
8393                    throw new SecurityException("Bad object " + obj + " for uid " + uid);
8394                }
8395            } else {
8396                throw new SecurityException("Unknown calling uid " + uid);
8397            }
8398
8399            // Verify: can't set installerPackageName to a package that is
8400            // not signed with the same cert as the caller.
8401            if (installerPackageSetting != null) {
8402                if (compareSignatures(callerSignature,
8403                        installerPackageSetting.signatures.mSignatures)
8404                        != PackageManager.SIGNATURE_MATCH) {
8405                    throw new SecurityException(
8406                            "Caller does not have same cert as new installer package "
8407                            + installerPackageName);
8408                }
8409            }
8410
8411            // Verify: if target already has an installer package, it must
8412            // be signed with the same cert as the caller.
8413            if (targetPackageSetting.installerPackageName != null) {
8414                PackageSetting setting = mSettings.mPackages.get(
8415                        targetPackageSetting.installerPackageName);
8416                // If the currently set package isn't valid, then it's always
8417                // okay to change it.
8418                if (setting != null) {
8419                    if (compareSignatures(callerSignature,
8420                            setting.signatures.mSignatures)
8421                            != PackageManager.SIGNATURE_MATCH) {
8422                        throw new SecurityException(
8423                                "Caller does not have same cert as old installer package "
8424                                + targetPackageSetting.installerPackageName);
8425                    }
8426                }
8427            }
8428
8429            // Okay!
8430            targetPackageSetting.installerPackageName = installerPackageName;
8431            scheduleWriteSettingsLocked();
8432        }
8433    }
8434
8435    private void processPendingInstall(final InstallArgs args, final int currentStatus) {
8436        // Queue up an async operation since the package installation may take a little while.
8437        mHandler.post(new Runnable() {
8438            public void run() {
8439                mHandler.removeCallbacks(this);
8440                 // Result object to be returned
8441                PackageInstalledInfo res = new PackageInstalledInfo();
8442                res.returnCode = currentStatus;
8443                res.uid = -1;
8444                res.pkg = null;
8445                res.removedInfo = new PackageRemovedInfo();
8446                if (res.returnCode == PackageManager.INSTALL_SUCCEEDED) {
8447                    args.doPreInstall(res.returnCode);
8448                    synchronized (mInstallLock) {
8449                        installPackageLI(args, res);
8450                    }
8451                    args.doPostInstall(res.returnCode, res.uid);
8452                }
8453
8454                // A restore should be performed at this point if (a) the install
8455                // succeeded, (b) the operation is not an update, and (c) the new
8456                // package has not opted out of backup participation.
8457                final boolean update = res.removedInfo.removedPackage != null;
8458                final int flags = (res.pkg == null) ? 0 : res.pkg.applicationInfo.flags;
8459                boolean doRestore = !update
8460                        && ((flags & ApplicationInfo.FLAG_ALLOW_BACKUP) != 0);
8461
8462                // Set up the post-install work request bookkeeping.  This will be used
8463                // and cleaned up by the post-install event handling regardless of whether
8464                // there's a restore pass performed.  Token values are >= 1.
8465                int token;
8466                if (mNextInstallToken < 0) mNextInstallToken = 1;
8467                token = mNextInstallToken++;
8468
8469                PostInstallData data = new PostInstallData(args, res);
8470                mRunningInstalls.put(token, data);
8471                if (DEBUG_INSTALL) Log.v(TAG, "+ starting restore round-trip " + token);
8472
8473                if (res.returnCode == PackageManager.INSTALL_SUCCEEDED && doRestore) {
8474                    // Pass responsibility to the Backup Manager.  It will perform a
8475                    // restore if appropriate, then pass responsibility back to the
8476                    // Package Manager to run the post-install observer callbacks
8477                    // and broadcasts.
8478                    IBackupManager bm = IBackupManager.Stub.asInterface(
8479                            ServiceManager.getService(Context.BACKUP_SERVICE));
8480                    if (bm != null) {
8481                        if (DEBUG_INSTALL) Log.v(TAG, "token " + token
8482                                + " to BM for possible restore");
8483                        try {
8484                            bm.restoreAtInstall(res.pkg.applicationInfo.packageName, token);
8485                        } catch (RemoteException e) {
8486                            // can't happen; the backup manager is local
8487                        } catch (Exception e) {
8488                            Slog.e(TAG, "Exception trying to enqueue restore", e);
8489                            doRestore = false;
8490                        }
8491                    } else {
8492                        Slog.e(TAG, "Backup Manager not found!");
8493                        doRestore = false;
8494                    }
8495                }
8496
8497                if (!doRestore) {
8498                    // No restore possible, or the Backup Manager was mysteriously not
8499                    // available -- just fire the post-install work request directly.
8500                    if (DEBUG_INSTALL) Log.v(TAG, "No restore - queue post-install for " + token);
8501                    Message msg = mHandler.obtainMessage(POST_INSTALL, token, 0);
8502                    mHandler.sendMessage(msg);
8503                }
8504            }
8505        });
8506    }
8507
8508    private abstract class HandlerParams {
8509        private static final int MAX_RETRIES = 4;
8510
8511        /**
8512         * Number of times startCopy() has been attempted and had a non-fatal
8513         * error.
8514         */
8515        private int mRetries = 0;
8516
8517        /** User handle for the user requesting the information or installation. */
8518        private final UserHandle mUser;
8519
8520        HandlerParams(UserHandle user) {
8521            mUser = user;
8522        }
8523
8524        UserHandle getUser() {
8525            return mUser;
8526        }
8527
8528        final boolean startCopy() {
8529            boolean res;
8530            try {
8531                if (DEBUG_INSTALL) Slog.i(TAG, "startCopy " + mUser + ": " + this);
8532
8533                if (++mRetries > MAX_RETRIES) {
8534                    Slog.w(TAG, "Failed to invoke remote methods on default container service. Giving up");
8535                    mHandler.sendEmptyMessage(MCS_GIVE_UP);
8536                    handleServiceError();
8537                    return false;
8538                } else {
8539                    handleStartCopy();
8540                    res = true;
8541                }
8542            } catch (RemoteException e) {
8543                if (DEBUG_INSTALL) Slog.i(TAG, "Posting install MCS_RECONNECT");
8544                mHandler.sendEmptyMessage(MCS_RECONNECT);
8545                res = false;
8546            }
8547            handleReturnCode();
8548            return res;
8549        }
8550
8551        final void serviceError() {
8552            if (DEBUG_INSTALL) Slog.i(TAG, "serviceError");
8553            handleServiceError();
8554            handleReturnCode();
8555        }
8556
8557        abstract void handleStartCopy() throws RemoteException;
8558        abstract void handleServiceError();
8559        abstract void handleReturnCode();
8560    }
8561
8562    class MeasureParams extends HandlerParams {
8563        private final PackageStats mStats;
8564        private boolean mSuccess;
8565
8566        private final IPackageStatsObserver mObserver;
8567
8568        public MeasureParams(PackageStats stats, IPackageStatsObserver observer) {
8569            super(new UserHandle(stats.userHandle));
8570            mObserver = observer;
8571            mStats = stats;
8572        }
8573
8574        @Override
8575        public String toString() {
8576            return "MeasureParams{"
8577                + Integer.toHexString(System.identityHashCode(this))
8578                + " " + mStats.packageName + "}";
8579        }
8580
8581        @Override
8582        void handleStartCopy() throws RemoteException {
8583            synchronized (mInstallLock) {
8584                mSuccess = getPackageSizeInfoLI(mStats.packageName, mStats.userHandle, mStats);
8585            }
8586
8587            if (mSuccess) {
8588                final boolean mounted;
8589                if (Environment.isExternalStorageEmulated()) {
8590                    mounted = true;
8591                } else {
8592                    final String status = Environment.getExternalStorageState();
8593                    mounted = (Environment.MEDIA_MOUNTED.equals(status)
8594                            || Environment.MEDIA_MOUNTED_READ_ONLY.equals(status));
8595                }
8596
8597                if (mounted) {
8598                    final UserEnvironment userEnv = new UserEnvironment(mStats.userHandle);
8599
8600                    mStats.externalCacheSize = calculateDirectorySize(mContainerService,
8601                            userEnv.buildExternalStorageAppCacheDirs(mStats.packageName));
8602
8603                    mStats.externalDataSize = calculateDirectorySize(mContainerService,
8604                            userEnv.buildExternalStorageAppDataDirs(mStats.packageName));
8605
8606                    // Always subtract cache size, since it's a subdirectory
8607                    mStats.externalDataSize -= mStats.externalCacheSize;
8608
8609                    mStats.externalMediaSize = calculateDirectorySize(mContainerService,
8610                            userEnv.buildExternalStorageAppMediaDirs(mStats.packageName));
8611
8612                    mStats.externalObbSize = calculateDirectorySize(mContainerService,
8613                            userEnv.buildExternalStorageAppObbDirs(mStats.packageName));
8614                }
8615            }
8616        }
8617
8618        @Override
8619        void handleReturnCode() {
8620            if (mObserver != null) {
8621                try {
8622                    mObserver.onGetStatsCompleted(mStats, mSuccess);
8623                } catch (RemoteException e) {
8624                    Slog.i(TAG, "Observer no longer exists.");
8625                }
8626            }
8627        }
8628
8629        @Override
8630        void handleServiceError() {
8631            Slog.e(TAG, "Could not measure application " + mStats.packageName
8632                            + " external storage");
8633        }
8634    }
8635
8636    private static long calculateDirectorySize(IMediaContainerService mcs, File[] paths)
8637            throws RemoteException {
8638        long result = 0;
8639        for (File path : paths) {
8640            result += mcs.calculateDirectorySize(path.getAbsolutePath());
8641        }
8642        return result;
8643    }
8644
8645    private static void clearDirectory(IMediaContainerService mcs, File[] paths) {
8646        for (File path : paths) {
8647            try {
8648                mcs.clearDirectory(path.getAbsolutePath());
8649            } catch (RemoteException e) {
8650            }
8651        }
8652    }
8653
8654    static class OriginInfo {
8655        /**
8656         * Location where install is coming from, before it has been
8657         * copied/renamed into place. This could be a single monolithic APK
8658         * file, or a cluster directory. This location may be untrusted.
8659         */
8660        final File file;
8661        final String cid;
8662
8663        /**
8664         * Flag indicating that {@link #file} or {@link #cid} has already been
8665         * staged, meaning downstream users don't need to defensively copy the
8666         * contents.
8667         */
8668        final boolean staged;
8669
8670        /**
8671         * Flag indicating that {@link #file} or {@link #cid} is an already
8672         * installed app that is being moved.
8673         */
8674        final boolean existing;
8675
8676        final String resolvedPath;
8677        final File resolvedFile;
8678
8679        static OriginInfo fromNothing() {
8680            return new OriginInfo(null, null, false, false);
8681        }
8682
8683        static OriginInfo fromUntrustedFile(File file) {
8684            return new OriginInfo(file, null, false, false);
8685        }
8686
8687        static OriginInfo fromExistingFile(File file) {
8688            return new OriginInfo(file, null, false, true);
8689        }
8690
8691        static OriginInfo fromStagedFile(File file) {
8692            return new OriginInfo(file, null, true, false);
8693        }
8694
8695        static OriginInfo fromStagedContainer(String cid) {
8696            return new OriginInfo(null, cid, true, false);
8697        }
8698
8699        private OriginInfo(File file, String cid, boolean staged, boolean existing) {
8700            this.file = file;
8701            this.cid = cid;
8702            this.staged = staged;
8703            this.existing = existing;
8704
8705            if (cid != null) {
8706                resolvedPath = PackageHelper.getSdDir(cid);
8707                resolvedFile = new File(resolvedPath);
8708            } else if (file != null) {
8709                resolvedPath = file.getAbsolutePath();
8710                resolvedFile = file;
8711            } else {
8712                resolvedPath = null;
8713                resolvedFile = null;
8714            }
8715        }
8716    }
8717
8718    class InstallParams extends HandlerParams {
8719        final OriginInfo origin;
8720        final IPackageInstallObserver2 observer;
8721        int installFlags;
8722        final String installerPackageName;
8723        final VerificationParams verificationParams;
8724        private InstallArgs mArgs;
8725        private int mRet;
8726        final String packageAbiOverride;
8727
8728        InstallParams(OriginInfo origin, IPackageInstallObserver2 observer, int installFlags,
8729                String installerPackageName, VerificationParams verificationParams, UserHandle user,
8730                String packageAbiOverride) {
8731            super(user);
8732            this.origin = origin;
8733            this.observer = observer;
8734            this.installFlags = installFlags;
8735            this.installerPackageName = installerPackageName;
8736            this.verificationParams = verificationParams;
8737            this.packageAbiOverride = packageAbiOverride;
8738        }
8739
8740        @Override
8741        public String toString() {
8742            return "InstallParams{" + Integer.toHexString(System.identityHashCode(this))
8743                    + " file=" + origin.file + " cid=" + origin.cid + "}";
8744        }
8745
8746        public ManifestDigest getManifestDigest() {
8747            if (verificationParams == null) {
8748                return null;
8749            }
8750            return verificationParams.getManifestDigest();
8751        }
8752
8753        private int installLocationPolicy(PackageInfoLite pkgLite) {
8754            String packageName = pkgLite.packageName;
8755            int installLocation = pkgLite.installLocation;
8756            boolean onSd = (installFlags & PackageManager.INSTALL_EXTERNAL) != 0;
8757            // reader
8758            synchronized (mPackages) {
8759                PackageParser.Package pkg = mPackages.get(packageName);
8760                if (pkg != null) {
8761                    if ((installFlags & PackageManager.INSTALL_REPLACE_EXISTING) != 0) {
8762                        // Check for downgrading.
8763                        if ((installFlags & PackageManager.INSTALL_ALLOW_DOWNGRADE) == 0) {
8764                            if (pkgLite.versionCode < pkg.mVersionCode) {
8765                                Slog.w(TAG, "Can't install update of " + packageName
8766                                        + " update version " + pkgLite.versionCode
8767                                        + " is older than installed version "
8768                                        + pkg.mVersionCode);
8769                                return PackageHelper.RECOMMEND_FAILED_VERSION_DOWNGRADE;
8770                            }
8771                        }
8772                        // Check for updated system application.
8773                        if ((pkg.applicationInfo.flags & ApplicationInfo.FLAG_SYSTEM) != 0) {
8774                            if (onSd) {
8775                                Slog.w(TAG, "Cannot install update to system app on sdcard");
8776                                return PackageHelper.RECOMMEND_FAILED_INVALID_LOCATION;
8777                            }
8778                            return PackageHelper.RECOMMEND_INSTALL_INTERNAL;
8779                        } else {
8780                            if (onSd) {
8781                                // Install flag overrides everything.
8782                                return PackageHelper.RECOMMEND_INSTALL_EXTERNAL;
8783                            }
8784                            // If current upgrade specifies particular preference
8785                            if (installLocation == PackageInfo.INSTALL_LOCATION_INTERNAL_ONLY) {
8786                                // Application explicitly specified internal.
8787                                return PackageHelper.RECOMMEND_INSTALL_INTERNAL;
8788                            } else if (installLocation == PackageInfo.INSTALL_LOCATION_PREFER_EXTERNAL) {
8789                                // App explictly prefers external. Let policy decide
8790                            } else {
8791                                // Prefer previous location
8792                                if (isExternal(pkg)) {
8793                                    return PackageHelper.RECOMMEND_INSTALL_EXTERNAL;
8794                                }
8795                                return PackageHelper.RECOMMEND_INSTALL_INTERNAL;
8796                            }
8797                        }
8798                    } else {
8799                        // Invalid install. Return error code
8800                        return PackageHelper.RECOMMEND_FAILED_ALREADY_EXISTS;
8801                    }
8802                }
8803            }
8804            // All the special cases have been taken care of.
8805            // Return result based on recommended install location.
8806            if (onSd) {
8807                return PackageHelper.RECOMMEND_INSTALL_EXTERNAL;
8808            }
8809            return pkgLite.recommendedInstallLocation;
8810        }
8811
8812        /*
8813         * Invoke remote method to get package information and install
8814         * location values. Override install location based on default
8815         * policy if needed and then create install arguments based
8816         * on the install location.
8817         */
8818        public void handleStartCopy() throws RemoteException {
8819            int ret = PackageManager.INSTALL_SUCCEEDED;
8820
8821            // If we're already staged, we've firmly committed to an install location
8822            if (origin.staged) {
8823                if (origin.file != null) {
8824                    installFlags |= PackageManager.INSTALL_INTERNAL;
8825                    installFlags &= ~PackageManager.INSTALL_EXTERNAL;
8826                } else if (origin.cid != null) {
8827                    installFlags |= PackageManager.INSTALL_EXTERNAL;
8828                    installFlags &= ~PackageManager.INSTALL_INTERNAL;
8829                } else {
8830                    throw new IllegalStateException("Invalid stage location");
8831                }
8832            }
8833
8834            final boolean onSd = (installFlags & PackageManager.INSTALL_EXTERNAL) != 0;
8835            final boolean onInt = (installFlags & PackageManager.INSTALL_INTERNAL) != 0;
8836
8837            PackageInfoLite pkgLite = null;
8838
8839            if (onInt && onSd) {
8840                // Check if both bits are set.
8841                Slog.w(TAG, "Conflicting flags specified for installing on both internal and external");
8842                ret = PackageManager.INSTALL_FAILED_INVALID_INSTALL_LOCATION;
8843            } else {
8844                pkgLite = mContainerService.getMinimalPackageInfo(origin.resolvedPath, installFlags,
8845                        packageAbiOverride);
8846
8847                /*
8848                 * If we have too little free space, try to free cache
8849                 * before giving up.
8850                 */
8851                if (!origin.staged && pkgLite.recommendedInstallLocation
8852                        == PackageHelper.RECOMMEND_FAILED_INSUFFICIENT_STORAGE) {
8853                    // TODO: focus freeing disk space on the target device
8854                    final StorageManager storage = StorageManager.from(mContext);
8855                    final long lowThreshold = storage.getStorageLowBytes(
8856                            Environment.getDataDirectory());
8857
8858                    final long sizeBytes = mContainerService.calculateInstalledSize(
8859                            origin.resolvedPath, isForwardLocked(), packageAbiOverride);
8860
8861                    if (mInstaller.freeCache(sizeBytes + lowThreshold) >= 0) {
8862                        pkgLite = mContainerService.getMinimalPackageInfo(origin.resolvedPath,
8863                                installFlags, packageAbiOverride);
8864                    }
8865
8866                    /*
8867                     * The cache free must have deleted the file we
8868                     * downloaded to install.
8869                     *
8870                     * TODO: fix the "freeCache" call to not delete
8871                     *       the file we care about.
8872                     */
8873                    if (pkgLite.recommendedInstallLocation
8874                            == PackageHelper.RECOMMEND_FAILED_INVALID_URI) {
8875                        pkgLite.recommendedInstallLocation
8876                            = PackageHelper.RECOMMEND_FAILED_INSUFFICIENT_STORAGE;
8877                    }
8878                }
8879            }
8880
8881            if (ret == PackageManager.INSTALL_SUCCEEDED) {
8882                int loc = pkgLite.recommendedInstallLocation;
8883                if (loc == PackageHelper.RECOMMEND_FAILED_INVALID_LOCATION) {
8884                    ret = PackageManager.INSTALL_FAILED_INVALID_INSTALL_LOCATION;
8885                } else if (loc == PackageHelper.RECOMMEND_FAILED_ALREADY_EXISTS) {
8886                    ret = PackageManager.INSTALL_FAILED_ALREADY_EXISTS;
8887                } else if (loc == PackageHelper.RECOMMEND_FAILED_INSUFFICIENT_STORAGE) {
8888                    ret = PackageManager.INSTALL_FAILED_INSUFFICIENT_STORAGE;
8889                } else if (loc == PackageHelper.RECOMMEND_FAILED_INVALID_APK) {
8890                    ret = PackageManager.INSTALL_FAILED_INVALID_APK;
8891                } else if (loc == PackageHelper.RECOMMEND_FAILED_INVALID_URI) {
8892                    ret = PackageManager.INSTALL_FAILED_INVALID_URI;
8893                } else if (loc == PackageHelper.RECOMMEND_MEDIA_UNAVAILABLE) {
8894                    ret = PackageManager.INSTALL_FAILED_MEDIA_UNAVAILABLE;
8895                } else {
8896                    // Override with defaults if needed.
8897                    loc = installLocationPolicy(pkgLite);
8898                    if (loc == PackageHelper.RECOMMEND_FAILED_VERSION_DOWNGRADE) {
8899                        ret = PackageManager.INSTALL_FAILED_VERSION_DOWNGRADE;
8900                    } else if (!onSd && !onInt) {
8901                        // Override install location with flags
8902                        if (loc == PackageHelper.RECOMMEND_INSTALL_EXTERNAL) {
8903                            // Set the flag to install on external media.
8904                            installFlags |= PackageManager.INSTALL_EXTERNAL;
8905                            installFlags &= ~PackageManager.INSTALL_INTERNAL;
8906                        } else {
8907                            // Make sure the flag for installing on external
8908                            // media is unset
8909                            installFlags |= PackageManager.INSTALL_INTERNAL;
8910                            installFlags &= ~PackageManager.INSTALL_EXTERNAL;
8911                        }
8912                    }
8913                }
8914            }
8915
8916            final InstallArgs args = createInstallArgs(this);
8917            mArgs = args;
8918
8919            if (ret == PackageManager.INSTALL_SUCCEEDED) {
8920                 /*
8921                 * ADB installs appear as UserHandle.USER_ALL, and can only be performed by
8922                 * UserHandle.USER_OWNER, so use the package verifier for UserHandle.USER_OWNER.
8923                 */
8924                int userIdentifier = getUser().getIdentifier();
8925                if (userIdentifier == UserHandle.USER_ALL
8926                        && ((installFlags & PackageManager.INSTALL_FROM_ADB) != 0)) {
8927                    userIdentifier = UserHandle.USER_OWNER;
8928                }
8929
8930                /*
8931                 * Determine if we have any installed package verifiers. If we
8932                 * do, then we'll defer to them to verify the packages.
8933                 */
8934                final int requiredUid = mRequiredVerifierPackage == null ? -1
8935                        : getPackageUid(mRequiredVerifierPackage, userIdentifier);
8936                if (!origin.existing && requiredUid != -1
8937                        && isVerificationEnabled(userIdentifier, installFlags)) {
8938                    final Intent verification = new Intent(
8939                            Intent.ACTION_PACKAGE_NEEDS_VERIFICATION);
8940                    verification.setDataAndType(Uri.fromFile(new File(origin.resolvedPath)),
8941                            PACKAGE_MIME_TYPE);
8942                    verification.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
8943
8944                    final List<ResolveInfo> receivers = queryIntentReceivers(verification,
8945                            PACKAGE_MIME_TYPE, PackageManager.GET_DISABLED_COMPONENTS,
8946                            0 /* TODO: Which userId? */);
8947
8948                    if (DEBUG_VERIFY) {
8949                        Slog.d(TAG, "Found " + receivers.size() + " verifiers for intent "
8950                                + verification.toString() + " with " + pkgLite.verifiers.length
8951                                + " optional verifiers");
8952                    }
8953
8954                    final int verificationId = mPendingVerificationToken++;
8955
8956                    verification.putExtra(PackageManager.EXTRA_VERIFICATION_ID, verificationId);
8957
8958                    verification.putExtra(PackageManager.EXTRA_VERIFICATION_INSTALLER_PACKAGE,
8959                            installerPackageName);
8960
8961                    verification.putExtra(PackageManager.EXTRA_VERIFICATION_INSTALL_FLAGS,
8962                            installFlags);
8963
8964                    verification.putExtra(PackageManager.EXTRA_VERIFICATION_PACKAGE_NAME,
8965                            pkgLite.packageName);
8966
8967                    verification.putExtra(PackageManager.EXTRA_VERIFICATION_VERSION_CODE,
8968                            pkgLite.versionCode);
8969
8970                    if (verificationParams != null) {
8971                        if (verificationParams.getVerificationURI() != null) {
8972                           verification.putExtra(PackageManager.EXTRA_VERIFICATION_URI,
8973                                 verificationParams.getVerificationURI());
8974                        }
8975                        if (verificationParams.getOriginatingURI() != null) {
8976                            verification.putExtra(Intent.EXTRA_ORIGINATING_URI,
8977                                  verificationParams.getOriginatingURI());
8978                        }
8979                        if (verificationParams.getReferrer() != null) {
8980                            verification.putExtra(Intent.EXTRA_REFERRER,
8981                                  verificationParams.getReferrer());
8982                        }
8983                        if (verificationParams.getOriginatingUid() >= 0) {
8984                            verification.putExtra(Intent.EXTRA_ORIGINATING_UID,
8985                                  verificationParams.getOriginatingUid());
8986                        }
8987                        if (verificationParams.getInstallerUid() >= 0) {
8988                            verification.putExtra(PackageManager.EXTRA_VERIFICATION_INSTALLER_UID,
8989                                  verificationParams.getInstallerUid());
8990                        }
8991                    }
8992
8993                    final PackageVerificationState verificationState = new PackageVerificationState(
8994                            requiredUid, args);
8995
8996                    mPendingVerification.append(verificationId, verificationState);
8997
8998                    final List<ComponentName> sufficientVerifiers = matchVerifiers(pkgLite,
8999                            receivers, verificationState);
9000
9001                    /*
9002                     * If any sufficient verifiers were listed in the package
9003                     * manifest, attempt to ask them.
9004                     */
9005                    if (sufficientVerifiers != null) {
9006                        final int N = sufficientVerifiers.size();
9007                        if (N == 0) {
9008                            Slog.i(TAG, "Additional verifiers required, but none installed.");
9009                            ret = PackageManager.INSTALL_FAILED_VERIFICATION_FAILURE;
9010                        } else {
9011                            for (int i = 0; i < N; i++) {
9012                                final ComponentName verifierComponent = sufficientVerifiers.get(i);
9013
9014                                final Intent sufficientIntent = new Intent(verification);
9015                                sufficientIntent.setComponent(verifierComponent);
9016
9017                                mContext.sendBroadcastAsUser(sufficientIntent, getUser());
9018                            }
9019                        }
9020                    }
9021
9022                    final ComponentName requiredVerifierComponent = matchComponentForVerifier(
9023                            mRequiredVerifierPackage, receivers);
9024                    if (ret == PackageManager.INSTALL_SUCCEEDED
9025                            && mRequiredVerifierPackage != null) {
9026                        /*
9027                         * Send the intent to the required verification agent,
9028                         * but only start the verification timeout after the
9029                         * target BroadcastReceivers have run.
9030                         */
9031                        verification.setComponent(requiredVerifierComponent);
9032                        mContext.sendOrderedBroadcastAsUser(verification, getUser(),
9033                                android.Manifest.permission.PACKAGE_VERIFICATION_AGENT,
9034                                new BroadcastReceiver() {
9035                                    @Override
9036                                    public void onReceive(Context context, Intent intent) {
9037                                        final Message msg = mHandler
9038                                                .obtainMessage(CHECK_PENDING_VERIFICATION);
9039                                        msg.arg1 = verificationId;
9040                                        mHandler.sendMessageDelayed(msg, getVerificationTimeout());
9041                                    }
9042                                }, null, 0, null, null);
9043
9044                        /*
9045                         * We don't want the copy to proceed until verification
9046                         * succeeds, so null out this field.
9047                         */
9048                        mArgs = null;
9049                    }
9050                } else {
9051                    /*
9052                     * No package verification is enabled, so immediately start
9053                     * the remote call to initiate copy using temporary file.
9054                     */
9055                    ret = args.copyApk(mContainerService, true);
9056                }
9057            }
9058
9059            mRet = ret;
9060        }
9061
9062        @Override
9063        void handleReturnCode() {
9064            // If mArgs is null, then MCS couldn't be reached. When it
9065            // reconnects, it will try again to install. At that point, this
9066            // will succeed.
9067            if (mArgs != null) {
9068                processPendingInstall(mArgs, mRet);
9069            }
9070        }
9071
9072        @Override
9073        void handleServiceError() {
9074            mArgs = createInstallArgs(this);
9075            mRet = PackageManager.INSTALL_FAILED_INTERNAL_ERROR;
9076        }
9077
9078        public boolean isForwardLocked() {
9079            return (installFlags & PackageManager.INSTALL_FORWARD_LOCK) != 0;
9080        }
9081    }
9082
9083    /**
9084     * Used during creation of InstallArgs
9085     *
9086     * @param installFlags package installation flags
9087     * @return true if should be installed on external storage
9088     */
9089    private static boolean installOnSd(int installFlags) {
9090        if ((installFlags & PackageManager.INSTALL_INTERNAL) != 0) {
9091            return false;
9092        }
9093        if ((installFlags & PackageManager.INSTALL_EXTERNAL) != 0) {
9094            return true;
9095        }
9096        return false;
9097    }
9098
9099    /**
9100     * Used during creation of InstallArgs
9101     *
9102     * @param installFlags package installation flags
9103     * @return true if should be installed as forward locked
9104     */
9105    private static boolean installForwardLocked(int installFlags) {
9106        return (installFlags & PackageManager.INSTALL_FORWARD_LOCK) != 0;
9107    }
9108
9109    private InstallArgs createInstallArgs(InstallParams params) {
9110        if (installOnSd(params.installFlags) || params.isForwardLocked()) {
9111            return new AsecInstallArgs(params);
9112        } else {
9113            return new FileInstallArgs(params);
9114        }
9115    }
9116
9117    /**
9118     * Create args that describe an existing installed package. Typically used
9119     * when cleaning up old installs, or used as a move source.
9120     */
9121    private InstallArgs createInstallArgsForExisting(int installFlags, String codePath,
9122            String resourcePath, String nativeLibraryRoot, String[] instructionSets) {
9123        final boolean isInAsec;
9124        if (installOnSd(installFlags)) {
9125            /* Apps on SD card are always in ASEC containers. */
9126            isInAsec = true;
9127        } else if (installForwardLocked(installFlags)
9128                && !codePath.startsWith(mDrmAppPrivateInstallDir.getAbsolutePath())) {
9129            /*
9130             * Forward-locked apps are only in ASEC containers if they're the
9131             * new style
9132             */
9133            isInAsec = true;
9134        } else {
9135            isInAsec = false;
9136        }
9137
9138        if (isInAsec) {
9139            return new AsecInstallArgs(codePath, instructionSets,
9140                    installOnSd(installFlags), installForwardLocked(installFlags));
9141        } else {
9142            return new FileInstallArgs(codePath, resourcePath, nativeLibraryRoot,
9143                    instructionSets);
9144        }
9145    }
9146
9147    static abstract class InstallArgs {
9148        /** @see InstallParams#origin */
9149        final OriginInfo origin;
9150
9151        final IPackageInstallObserver2 observer;
9152        // Always refers to PackageManager flags only
9153        final int installFlags;
9154        final String installerPackageName;
9155        final ManifestDigest manifestDigest;
9156        final UserHandle user;
9157        final String abiOverride;
9158
9159        // The list of instruction sets supported by this app. This is currently
9160        // only used during the rmdex() phase to clean up resources. We can get rid of this
9161        // if we move dex files under the common app path.
9162        /* nullable */ String[] instructionSets;
9163
9164        InstallArgs(OriginInfo origin, IPackageInstallObserver2 observer, int installFlags,
9165                String installerPackageName, ManifestDigest manifestDigest, UserHandle user,
9166                String[] instructionSets, String abiOverride) {
9167            this.origin = origin;
9168            this.installFlags = installFlags;
9169            this.observer = observer;
9170            this.installerPackageName = installerPackageName;
9171            this.manifestDigest = manifestDigest;
9172            this.user = user;
9173            this.instructionSets = instructionSets;
9174            this.abiOverride = abiOverride;
9175        }
9176
9177        abstract int copyApk(IMediaContainerService imcs, boolean temp) throws RemoteException;
9178        abstract int doPreInstall(int status);
9179
9180        /**
9181         * Rename package into final resting place. All paths on the given
9182         * scanned package should be updated to reflect the rename.
9183         */
9184        abstract boolean doRename(int status, PackageParser.Package pkg, String oldCodePath);
9185        abstract int doPostInstall(int status, int uid);
9186
9187        /** @see PackageSettingBase#codePathString */
9188        abstract String getCodePath();
9189        /** @see PackageSettingBase#resourcePathString */
9190        abstract String getResourcePath();
9191        abstract String getLegacyNativeLibraryPath();
9192
9193        // Need installer lock especially for dex file removal.
9194        abstract void cleanUpResourcesLI();
9195        abstract boolean doPostDeleteLI(boolean delete);
9196        abstract boolean checkFreeStorage(IMediaContainerService imcs) throws RemoteException;
9197
9198        /**
9199         * Called before the source arguments are copied. This is used mostly
9200         * for MoveParams when it needs to read the source file to put it in the
9201         * destination.
9202         */
9203        int doPreCopy() {
9204            return PackageManager.INSTALL_SUCCEEDED;
9205        }
9206
9207        /**
9208         * Called after the source arguments are copied. This is used mostly for
9209         * MoveParams when it needs to read the source file to put it in the
9210         * destination.
9211         *
9212         * @return
9213         */
9214        int doPostCopy(int uid) {
9215            return PackageManager.INSTALL_SUCCEEDED;
9216        }
9217
9218        protected boolean isFwdLocked() {
9219            return (installFlags & PackageManager.INSTALL_FORWARD_LOCK) != 0;
9220        }
9221
9222        protected boolean isExternal() {
9223            return (installFlags & PackageManager.INSTALL_EXTERNAL) != 0;
9224        }
9225
9226        UserHandle getUser() {
9227            return user;
9228        }
9229    }
9230
9231    /**
9232     * Logic to handle installation of non-ASEC applications, including copying
9233     * and renaming logic.
9234     */
9235    class FileInstallArgs extends InstallArgs {
9236        private File codeFile;
9237        private File resourceFile;
9238        private File legacyNativeLibraryPath;
9239
9240        // Example topology:
9241        // /data/app/com.example/base.apk
9242        // /data/app/com.example/split_foo.apk
9243        // /data/app/com.example/lib/arm/libfoo.so
9244        // /data/app/com.example/lib/arm64/libfoo.so
9245        // /data/app/com.example/dalvik/arm/base.apk@classes.dex
9246
9247        /** New install */
9248        FileInstallArgs(InstallParams params) {
9249            super(params.origin, params.observer, params.installFlags,
9250                    params.installerPackageName, params.getManifestDigest(), params.getUser(),
9251                    null /* instruction sets */, params.packageAbiOverride);
9252            if (isFwdLocked()) {
9253                throw new IllegalArgumentException("Forward locking only supported in ASEC");
9254            }
9255        }
9256
9257        /** Existing install */
9258        FileInstallArgs(String codePath, String resourcePath, String legacyNativeLibraryPath,
9259                String[] instructionSets) {
9260            super(OriginInfo.fromNothing(), null, 0, null, null, null, instructionSets, null);
9261            this.codeFile = (codePath != null) ? new File(codePath) : null;
9262            this.resourceFile = (resourcePath != null) ? new File(resourcePath) : null;
9263            this.legacyNativeLibraryPath = (legacyNativeLibraryPath != null) ?
9264                    new File(legacyNativeLibraryPath) : null;
9265        }
9266
9267        boolean checkFreeStorage(IMediaContainerService imcs) throws RemoteException {
9268            final long sizeBytes = imcs.calculateInstalledSize(origin.file.getAbsolutePath(),
9269                    isFwdLocked(), abiOverride);
9270
9271            final StorageManager storage = StorageManager.from(mContext);
9272            return (sizeBytes <= storage.getStorageBytesUntilLow(Environment.getDataDirectory()));
9273        }
9274
9275        int copyApk(IMediaContainerService imcs, boolean temp) throws RemoteException {
9276            if (origin.staged) {
9277                Slog.d(TAG, origin.file + " already staged; skipping copy");
9278                codeFile = origin.file;
9279                resourceFile = origin.file;
9280                return PackageManager.INSTALL_SUCCEEDED;
9281            }
9282
9283            try {
9284                final File tempDir = mInstallerService.allocateInternalStageDirLegacy();
9285                codeFile = tempDir;
9286                resourceFile = tempDir;
9287            } catch (IOException e) {
9288                Slog.w(TAG, "Failed to create copy file: " + e);
9289                return PackageManager.INSTALL_FAILED_INSUFFICIENT_STORAGE;
9290            }
9291
9292            final IParcelFileDescriptorFactory target = new IParcelFileDescriptorFactory.Stub() {
9293                @Override
9294                public ParcelFileDescriptor open(String name, int mode) throws RemoteException {
9295                    if (!FileUtils.isValidExtFilename(name)) {
9296                        throw new IllegalArgumentException("Invalid filename: " + name);
9297                    }
9298                    try {
9299                        final File file = new File(codeFile, name);
9300                        final FileDescriptor fd = Os.open(file.getAbsolutePath(),
9301                                O_RDWR | O_CREAT, 0644);
9302                        Os.chmod(file.getAbsolutePath(), 0644);
9303                        return new ParcelFileDescriptor(fd);
9304                    } catch (ErrnoException e) {
9305                        throw new RemoteException("Failed to open: " + e.getMessage());
9306                    }
9307                }
9308            };
9309
9310            int ret = PackageManager.INSTALL_SUCCEEDED;
9311            ret = imcs.copyPackage(origin.file.getAbsolutePath(), target);
9312            if (ret != PackageManager.INSTALL_SUCCEEDED) {
9313                Slog.e(TAG, "Failed to copy package");
9314                return ret;
9315            }
9316
9317            final File libraryRoot = new File(codeFile, LIB_DIR_NAME);
9318            NativeLibraryHelper.Handle handle = null;
9319            try {
9320                handle = NativeLibraryHelper.Handle.create(codeFile);
9321                ret = NativeLibraryHelper.copyNativeBinariesWithOverride(handle, libraryRoot,
9322                        abiOverride);
9323            } catch (IOException e) {
9324                Slog.e(TAG, "Copying native libraries failed", e);
9325                ret = PackageManager.INSTALL_FAILED_INTERNAL_ERROR;
9326            } finally {
9327                IoUtils.closeQuietly(handle);
9328            }
9329
9330            return ret;
9331        }
9332
9333        int doPreInstall(int status) {
9334            if (status != PackageManager.INSTALL_SUCCEEDED) {
9335                cleanUp();
9336            }
9337            return status;
9338        }
9339
9340        boolean doRename(int status, PackageParser.Package pkg, String oldCodePath) {
9341            if (status != PackageManager.INSTALL_SUCCEEDED) {
9342                cleanUp();
9343                return false;
9344            } else {
9345                final File beforeCodeFile = codeFile;
9346                final File afterCodeFile = getNextCodePath(pkg.packageName);
9347
9348                Slog.d(TAG, "Renaming " + beforeCodeFile + " to " + afterCodeFile);
9349                try {
9350                    Os.rename(beforeCodeFile.getAbsolutePath(), afterCodeFile.getAbsolutePath());
9351                } catch (ErrnoException e) {
9352                    Slog.d(TAG, "Failed to rename", e);
9353                    return false;
9354                }
9355
9356                if (!SELinux.restoreconRecursive(afterCodeFile)) {
9357                    Slog.d(TAG, "Failed to restorecon");
9358                    return false;
9359                }
9360
9361                // Reflect the rename internally
9362                codeFile = afterCodeFile;
9363                resourceFile = afterCodeFile;
9364
9365                // Reflect the rename in scanned details
9366                pkg.codePath = afterCodeFile.getAbsolutePath();
9367                pkg.baseCodePath = FileUtils.rewriteAfterRename(beforeCodeFile, afterCodeFile,
9368                        pkg.baseCodePath);
9369                pkg.splitCodePaths = FileUtils.rewriteAfterRename(beforeCodeFile, afterCodeFile,
9370                        pkg.splitCodePaths);
9371
9372                // Reflect the rename in app info
9373                pkg.applicationInfo.setCodePath(pkg.codePath);
9374                pkg.applicationInfo.setBaseCodePath(pkg.baseCodePath);
9375                pkg.applicationInfo.setSplitCodePaths(pkg.splitCodePaths);
9376                pkg.applicationInfo.setResourcePath(pkg.codePath);
9377                pkg.applicationInfo.setBaseResourcePath(pkg.baseCodePath);
9378                pkg.applicationInfo.setSplitResourcePaths(pkg.splitCodePaths);
9379
9380                return true;
9381            }
9382        }
9383
9384        int doPostInstall(int status, int uid) {
9385            if (status != PackageManager.INSTALL_SUCCEEDED) {
9386                cleanUp();
9387            }
9388            return status;
9389        }
9390
9391        @Override
9392        String getCodePath() {
9393            return (codeFile != null) ? codeFile.getAbsolutePath() : null;
9394        }
9395
9396        @Override
9397        String getResourcePath() {
9398            return (resourceFile != null) ? resourceFile.getAbsolutePath() : null;
9399        }
9400
9401        @Override
9402        String getLegacyNativeLibraryPath() {
9403            return (legacyNativeLibraryPath != null) ? legacyNativeLibraryPath.getAbsolutePath() : null;
9404        }
9405
9406        private boolean cleanUp() {
9407            if (codeFile == null || !codeFile.exists()) {
9408                return false;
9409            }
9410
9411            if (codeFile.isDirectory()) {
9412                FileUtils.deleteContents(codeFile);
9413            }
9414            codeFile.delete();
9415
9416            if (resourceFile != null && !FileUtils.contains(codeFile, resourceFile)) {
9417                resourceFile.delete();
9418            }
9419
9420            if (legacyNativeLibraryPath != null && !FileUtils.contains(codeFile, legacyNativeLibraryPath)) {
9421                if (!FileUtils.deleteContents(legacyNativeLibraryPath)) {
9422                    Slog.w(TAG, "Couldn't delete native library directory " + legacyNativeLibraryPath);
9423                }
9424                legacyNativeLibraryPath.delete();
9425            }
9426
9427            return true;
9428        }
9429
9430        void cleanUpResourcesLI() {
9431            // Try enumerating all code paths before deleting
9432            List<String> allCodePaths = Collections.EMPTY_LIST;
9433            if (codeFile != null && codeFile.exists()) {
9434                try {
9435                    final PackageLite pkg = PackageParser.parsePackageLite(codeFile, 0);
9436                    allCodePaths = pkg.getAllCodePaths();
9437                } catch (PackageParserException e) {
9438                    // Ignored; we tried our best
9439                }
9440            }
9441
9442            cleanUp();
9443
9444            if (!allCodePaths.isEmpty()) {
9445                if (instructionSets == null) {
9446                    throw new IllegalStateException("instructionSet == null");
9447                }
9448                String[] dexCodeInstructionSets = getDexCodeInstructionSets(instructionSets);
9449                for (String codePath : allCodePaths) {
9450                    for (String dexCodeInstructionSet : dexCodeInstructionSets) {
9451                        int retCode = mInstaller.rmdex(codePath, dexCodeInstructionSet);
9452                        if (retCode < 0) {
9453                            Slog.w(TAG, "Couldn't remove dex file for package: "
9454                                    + " at location " + codePath + ", retcode=" + retCode);
9455                            // we don't consider this to be a failure of the core package deletion
9456                        }
9457                    }
9458                }
9459            }
9460        }
9461
9462        boolean doPostDeleteLI(boolean delete) {
9463            // XXX err, shouldn't we respect the delete flag?
9464            cleanUpResourcesLI();
9465            return true;
9466        }
9467    }
9468
9469    private boolean isAsecExternal(String cid) {
9470        final String asecPath = PackageHelper.getSdFilesystem(cid);
9471        return !asecPath.startsWith(mAsecInternalPath);
9472    }
9473
9474    private static void maybeThrowExceptionForMultiArchCopy(String message, int copyRet) throws
9475            PackageManagerException {
9476        if (copyRet < 0) {
9477            if (copyRet != PackageManager.NO_NATIVE_LIBRARIES &&
9478                    copyRet != PackageManager.INSTALL_FAILED_NO_MATCHING_ABIS) {
9479                throw new PackageManagerException(copyRet, message);
9480            }
9481        }
9482    }
9483
9484    /**
9485     * Extract the MountService "container ID" from the full code path of an
9486     * .apk.
9487     */
9488    static String cidFromCodePath(String fullCodePath) {
9489        int eidx = fullCodePath.lastIndexOf("/");
9490        String subStr1 = fullCodePath.substring(0, eidx);
9491        int sidx = subStr1.lastIndexOf("/");
9492        return subStr1.substring(sidx+1, eidx);
9493    }
9494
9495    /**
9496     * Logic to handle installation of ASEC applications, including copying and
9497     * renaming logic.
9498     */
9499    class AsecInstallArgs extends InstallArgs {
9500        static final String RES_FILE_NAME = "pkg.apk";
9501        static final String PUBLIC_RES_FILE_NAME = "res.zip";
9502
9503        String cid;
9504        String packagePath;
9505        String resourcePath;
9506        String legacyNativeLibraryDir;
9507
9508        /** New install */
9509        AsecInstallArgs(InstallParams params) {
9510            super(params.origin, params.observer, params.installFlags,
9511                    params.installerPackageName, params.getManifestDigest(),
9512                    params.getUser(), null /* instruction sets */,
9513                    params.packageAbiOverride);
9514        }
9515
9516        /** Existing install */
9517        AsecInstallArgs(String fullCodePath, String[] instructionSets,
9518                        boolean isExternal, boolean isForwardLocked) {
9519            super(OriginInfo.fromNothing(), null, (isExternal ? INSTALL_EXTERNAL : 0)
9520                    | (isForwardLocked ? INSTALL_FORWARD_LOCK : 0), null, null, null,
9521                    instructionSets, null);
9522            // Hackily pretend we're still looking at a full code path
9523            if (!fullCodePath.endsWith(RES_FILE_NAME)) {
9524                fullCodePath = new File(fullCodePath, RES_FILE_NAME).getAbsolutePath();
9525            }
9526
9527            // Extract cid from fullCodePath
9528            int eidx = fullCodePath.lastIndexOf("/");
9529            String subStr1 = fullCodePath.substring(0, eidx);
9530            int sidx = subStr1.lastIndexOf("/");
9531            cid = subStr1.substring(sidx+1, eidx);
9532            setMountPath(subStr1);
9533        }
9534
9535        AsecInstallArgs(String cid, String[] instructionSets, boolean isForwardLocked) {
9536            super(OriginInfo.fromNothing(), null, (isAsecExternal(cid) ? INSTALL_EXTERNAL : 0)
9537                    | (isForwardLocked ? INSTALL_FORWARD_LOCK : 0), null, null, null,
9538                    instructionSets, null);
9539            this.cid = cid;
9540            setMountPath(PackageHelper.getSdDir(cid));
9541        }
9542
9543        void createCopyFile() {
9544            cid = mInstallerService.allocateExternalStageCidLegacy();
9545        }
9546
9547        boolean checkFreeStorage(IMediaContainerService imcs) throws RemoteException {
9548            final long sizeBytes = imcs.calculateInstalledSize(packagePath, isFwdLocked(),
9549                    abiOverride);
9550
9551            final File target;
9552            if (isExternal()) {
9553                target = new UserEnvironment(UserHandle.USER_OWNER).getExternalStorageDirectory();
9554            } else {
9555                target = Environment.getDataDirectory();
9556            }
9557
9558            final StorageManager storage = StorageManager.from(mContext);
9559            return (sizeBytes <= storage.getStorageBytesUntilLow(target));
9560        }
9561
9562        int copyApk(IMediaContainerService imcs, boolean temp) throws RemoteException {
9563            if (origin.staged) {
9564                Slog.d(TAG, origin.cid + " already staged; skipping copy");
9565                cid = origin.cid;
9566                setMountPath(PackageHelper.getSdDir(cid));
9567                return PackageManager.INSTALL_SUCCEEDED;
9568            }
9569
9570            if (temp) {
9571                createCopyFile();
9572            } else {
9573                /*
9574                 * Pre-emptively destroy the container since it's destroyed if
9575                 * copying fails due to it existing anyway.
9576                 */
9577                PackageHelper.destroySdDir(cid);
9578            }
9579
9580            final String newMountPath = imcs.copyPackageToContainer(
9581                    origin.file.getAbsolutePath(), cid, getEncryptKey(), isExternal(),
9582                    isFwdLocked(), deriveAbiOverride(abiOverride, null /* settings */));
9583
9584            if (newMountPath != null) {
9585                setMountPath(newMountPath);
9586                return PackageManager.INSTALL_SUCCEEDED;
9587            } else {
9588                return PackageManager.INSTALL_FAILED_CONTAINER_ERROR;
9589            }
9590        }
9591
9592        @Override
9593        String getCodePath() {
9594            return packagePath;
9595        }
9596
9597        @Override
9598        String getResourcePath() {
9599            return resourcePath;
9600        }
9601
9602        @Override
9603        String getLegacyNativeLibraryPath() {
9604            return legacyNativeLibraryDir;
9605        }
9606
9607        int doPreInstall(int status) {
9608            if (status != PackageManager.INSTALL_SUCCEEDED) {
9609                // Destroy container
9610                PackageHelper.destroySdDir(cid);
9611            } else {
9612                boolean mounted = PackageHelper.isContainerMounted(cid);
9613                if (!mounted) {
9614                    String newMountPath = PackageHelper.mountSdDir(cid, getEncryptKey(),
9615                            Process.SYSTEM_UID);
9616                    if (newMountPath != null) {
9617                        setMountPath(newMountPath);
9618                    } else {
9619                        return PackageManager.INSTALL_FAILED_CONTAINER_ERROR;
9620                    }
9621                }
9622            }
9623            return status;
9624        }
9625
9626        boolean doRename(int status, PackageParser.Package pkg, String oldCodePath) {
9627            String newCacheId = getNextCodePath(oldCodePath, pkg.packageName, "/" + RES_FILE_NAME);
9628            String newMountPath = null;
9629            if (PackageHelper.isContainerMounted(cid)) {
9630                // Unmount the container
9631                if (!PackageHelper.unMountSdDir(cid)) {
9632                    Slog.i(TAG, "Failed to unmount " + cid + " before renaming");
9633                    return false;
9634                }
9635            }
9636            if (!PackageHelper.renameSdDir(cid, newCacheId)) {
9637                Slog.e(TAG, "Failed to rename " + cid + " to " + newCacheId +
9638                        " which might be stale. Will try to clean up.");
9639                // Clean up the stale container and proceed to recreate.
9640                if (!PackageHelper.destroySdDir(newCacheId)) {
9641                    Slog.e(TAG, "Very strange. Cannot clean up stale container " + newCacheId);
9642                    return false;
9643                }
9644                // Successfully cleaned up stale container. Try to rename again.
9645                if (!PackageHelper.renameSdDir(cid, newCacheId)) {
9646                    Slog.e(TAG, "Failed to rename " + cid + " to " + newCacheId
9647                            + " inspite of cleaning it up.");
9648                    return false;
9649                }
9650            }
9651            if (!PackageHelper.isContainerMounted(newCacheId)) {
9652                Slog.w(TAG, "Mounting container " + newCacheId);
9653                newMountPath = PackageHelper.mountSdDir(newCacheId,
9654                        getEncryptKey(), Process.SYSTEM_UID);
9655            } else {
9656                newMountPath = PackageHelper.getSdDir(newCacheId);
9657            }
9658            if (newMountPath == null) {
9659                Slog.w(TAG, "Failed to get cache path for  " + newCacheId);
9660                return false;
9661            }
9662            Log.i(TAG, "Succesfully renamed " + cid +
9663                    " to " + newCacheId +
9664                    " at new path: " + newMountPath);
9665            cid = newCacheId;
9666
9667            final File beforeCodeFile = new File(packagePath);
9668            setMountPath(newMountPath);
9669            final File afterCodeFile = new File(packagePath);
9670
9671            // Reflect the rename in scanned details
9672            pkg.codePath = afterCodeFile.getAbsolutePath();
9673            pkg.baseCodePath = FileUtils.rewriteAfterRename(beforeCodeFile, afterCodeFile,
9674                    pkg.baseCodePath);
9675            pkg.splitCodePaths = FileUtils.rewriteAfterRename(beforeCodeFile, afterCodeFile,
9676                    pkg.splitCodePaths);
9677
9678            // Reflect the rename in app info
9679            pkg.applicationInfo.setCodePath(pkg.codePath);
9680            pkg.applicationInfo.setBaseCodePath(pkg.baseCodePath);
9681            pkg.applicationInfo.setSplitCodePaths(pkg.splitCodePaths);
9682            pkg.applicationInfo.setResourcePath(pkg.codePath);
9683            pkg.applicationInfo.setBaseResourcePath(pkg.baseCodePath);
9684            pkg.applicationInfo.setSplitResourcePaths(pkg.splitCodePaths);
9685
9686            return true;
9687        }
9688
9689        private void setMountPath(String mountPath) {
9690            final File mountFile = new File(mountPath);
9691
9692            final File monolithicFile = new File(mountFile, RES_FILE_NAME);
9693            if (monolithicFile.exists()) {
9694                packagePath = monolithicFile.getAbsolutePath();
9695                if (isFwdLocked()) {
9696                    resourcePath = new File(mountFile, PUBLIC_RES_FILE_NAME).getAbsolutePath();
9697                } else {
9698                    resourcePath = packagePath;
9699                }
9700            } else {
9701                packagePath = mountFile.getAbsolutePath();
9702                resourcePath = packagePath;
9703            }
9704
9705            legacyNativeLibraryDir = new File(mountFile, LIB_DIR_NAME).getAbsolutePath();
9706        }
9707
9708        int doPostInstall(int status, int uid) {
9709            if (status != PackageManager.INSTALL_SUCCEEDED) {
9710                cleanUp();
9711            } else {
9712                final int groupOwner;
9713                final String protectedFile;
9714                if (isFwdLocked()) {
9715                    groupOwner = UserHandle.getSharedAppGid(uid);
9716                    protectedFile = RES_FILE_NAME;
9717                } else {
9718                    groupOwner = -1;
9719                    protectedFile = null;
9720                }
9721
9722                if (uid < Process.FIRST_APPLICATION_UID
9723                        || !PackageHelper.fixSdPermissions(cid, groupOwner, protectedFile)) {
9724                    Slog.e(TAG, "Failed to finalize " + cid);
9725                    PackageHelper.destroySdDir(cid);
9726                    return PackageManager.INSTALL_FAILED_CONTAINER_ERROR;
9727                }
9728
9729                boolean mounted = PackageHelper.isContainerMounted(cid);
9730                if (!mounted) {
9731                    PackageHelper.mountSdDir(cid, getEncryptKey(), Process.myUid());
9732                }
9733            }
9734            return status;
9735        }
9736
9737        private void cleanUp() {
9738            if (DEBUG_SD_INSTALL) Slog.i(TAG, "cleanUp");
9739
9740            // Destroy secure container
9741            PackageHelper.destroySdDir(cid);
9742        }
9743
9744        private List<String> getAllCodePaths() {
9745            final File codeFile = new File(getCodePath());
9746            if (codeFile != null && codeFile.exists()) {
9747                try {
9748                    final PackageLite pkg = PackageParser.parsePackageLite(codeFile, 0);
9749                    return pkg.getAllCodePaths();
9750                } catch (PackageParserException e) {
9751                    // Ignored; we tried our best
9752                }
9753            }
9754            return Collections.EMPTY_LIST;
9755        }
9756
9757        void cleanUpResourcesLI() {
9758            // Enumerate all code paths before deleting
9759            cleanUpResourcesLI(getAllCodePaths());
9760        }
9761
9762        private void cleanUpResourcesLI(List<String> allCodePaths) {
9763            cleanUp();
9764
9765            if (!allCodePaths.isEmpty()) {
9766                if (instructionSets == null) {
9767                    throw new IllegalStateException("instructionSet == null");
9768                }
9769                String[] dexCodeInstructionSets = getDexCodeInstructionSets(instructionSets);
9770                for (String codePath : allCodePaths) {
9771                    for (String dexCodeInstructionSet : dexCodeInstructionSets) {
9772                        int retCode = mInstaller.rmdex(codePath, dexCodeInstructionSet);
9773                        if (retCode < 0) {
9774                            Slog.w(TAG, "Couldn't remove dex file for package: "
9775                                    + " at location " + codePath + ", retcode=" + retCode);
9776                            // we don't consider this to be a failure of the core package deletion
9777                        }
9778                    }
9779                }
9780            }
9781        }
9782
9783        boolean matchContainer(String app) {
9784            if (cid.startsWith(app)) {
9785                return true;
9786            }
9787            return false;
9788        }
9789
9790        String getPackageName() {
9791            return getAsecPackageName(cid);
9792        }
9793
9794        boolean doPostDeleteLI(boolean delete) {
9795            if (DEBUG_SD_INSTALL) Slog.i(TAG, "doPostDeleteLI() del=" + delete);
9796            final List<String> allCodePaths = getAllCodePaths();
9797            boolean mounted = PackageHelper.isContainerMounted(cid);
9798            if (mounted) {
9799                // Unmount first
9800                if (PackageHelper.unMountSdDir(cid)) {
9801                    mounted = false;
9802                }
9803            }
9804            if (!mounted && delete) {
9805                cleanUpResourcesLI(allCodePaths);
9806            }
9807            return !mounted;
9808        }
9809
9810        @Override
9811        int doPreCopy() {
9812            if (isFwdLocked()) {
9813                if (!PackageHelper.fixSdPermissions(cid,
9814                        getPackageUid(DEFAULT_CONTAINER_PACKAGE, 0), RES_FILE_NAME)) {
9815                    return PackageManager.INSTALL_FAILED_CONTAINER_ERROR;
9816                }
9817            }
9818
9819            return PackageManager.INSTALL_SUCCEEDED;
9820        }
9821
9822        @Override
9823        int doPostCopy(int uid) {
9824            if (isFwdLocked()) {
9825                if (uid < Process.FIRST_APPLICATION_UID
9826                        || !PackageHelper.fixSdPermissions(cid, UserHandle.getSharedAppGid(uid),
9827                                RES_FILE_NAME)) {
9828                    Slog.e(TAG, "Failed to finalize " + cid);
9829                    PackageHelper.destroySdDir(cid);
9830                    return PackageManager.INSTALL_FAILED_CONTAINER_ERROR;
9831                }
9832            }
9833
9834            return PackageManager.INSTALL_SUCCEEDED;
9835        }
9836    }
9837
9838    static String getAsecPackageName(String packageCid) {
9839        int idx = packageCid.lastIndexOf("-");
9840        if (idx == -1) {
9841            return packageCid;
9842        }
9843        return packageCid.substring(0, idx);
9844    }
9845
9846    // Utility method used to create code paths based on package name and available index.
9847    private static String getNextCodePath(String oldCodePath, String prefix, String suffix) {
9848        String idxStr = "";
9849        int idx = 1;
9850        // Fall back to default value of idx=1 if prefix is not
9851        // part of oldCodePath
9852        if (oldCodePath != null) {
9853            String subStr = oldCodePath;
9854            // Drop the suffix right away
9855            if (suffix != null && subStr.endsWith(suffix)) {
9856                subStr = subStr.substring(0, subStr.length() - suffix.length());
9857            }
9858            // If oldCodePath already contains prefix find out the
9859            // ending index to either increment or decrement.
9860            int sidx = subStr.lastIndexOf(prefix);
9861            if (sidx != -1) {
9862                subStr = subStr.substring(sidx + prefix.length());
9863                if (subStr != null) {
9864                    if (subStr.startsWith(INSTALL_PACKAGE_SUFFIX)) {
9865                        subStr = subStr.substring(INSTALL_PACKAGE_SUFFIX.length());
9866                    }
9867                    try {
9868                        idx = Integer.parseInt(subStr);
9869                        if (idx <= 1) {
9870                            idx++;
9871                        } else {
9872                            idx--;
9873                        }
9874                    } catch(NumberFormatException e) {
9875                    }
9876                }
9877            }
9878        }
9879        idxStr = INSTALL_PACKAGE_SUFFIX + Integer.toString(idx);
9880        return prefix + idxStr;
9881    }
9882
9883    private File getNextCodePath(String packageName) {
9884        int suffix = 1;
9885        File result;
9886        do {
9887            result = new File(mAppInstallDir, packageName + "-" + suffix);
9888            suffix++;
9889        } while (result.exists());
9890        return result;
9891    }
9892
9893    // Utility method used to ignore ADD/REMOVE events
9894    // by directory observer.
9895    private static boolean ignoreCodePath(String fullPathStr) {
9896        String apkName = deriveCodePathName(fullPathStr);
9897        int idx = apkName.lastIndexOf(INSTALL_PACKAGE_SUFFIX);
9898        if (idx != -1 && ((idx+1) < apkName.length())) {
9899            // Make sure the package ends with a numeral
9900            String version = apkName.substring(idx+1);
9901            try {
9902                Integer.parseInt(version);
9903                return true;
9904            } catch (NumberFormatException e) {}
9905        }
9906        return false;
9907    }
9908
9909    // Utility method that returns the relative package path with respect
9910    // to the installation directory. Like say for /data/data/com.test-1.apk
9911    // string com.test-1 is returned.
9912    static String deriveCodePathName(String codePath) {
9913        if (codePath == null) {
9914            return null;
9915        }
9916        final File codeFile = new File(codePath);
9917        final String name = codeFile.getName();
9918        if (codeFile.isDirectory()) {
9919            return name;
9920        } else if (name.endsWith(".apk") || name.endsWith(".tmp")) {
9921            final int lastDot = name.lastIndexOf('.');
9922            return name.substring(0, lastDot);
9923        } else {
9924            Slog.w(TAG, "Odd, " + codePath + " doesn't look like an APK");
9925            return null;
9926        }
9927    }
9928
9929    class PackageInstalledInfo {
9930        String name;
9931        int uid;
9932        // The set of users that originally had this package installed.
9933        int[] origUsers;
9934        // The set of users that now have this package installed.
9935        int[] newUsers;
9936        PackageParser.Package pkg;
9937        int returnCode;
9938        String returnMsg;
9939        PackageRemovedInfo removedInfo;
9940
9941        public void setError(int code, String msg) {
9942            returnCode = code;
9943            returnMsg = msg;
9944            Slog.w(TAG, msg);
9945        }
9946
9947        public void setError(String msg, PackageParserException e) {
9948            returnCode = e.error;
9949            returnMsg = ExceptionUtils.getCompleteMessage(msg, e);
9950            Slog.w(TAG, msg, e);
9951        }
9952
9953        public void setError(String msg, PackageManagerException e) {
9954            returnCode = e.error;
9955            returnMsg = ExceptionUtils.getCompleteMessage(msg, e);
9956            Slog.w(TAG, msg, e);
9957        }
9958
9959        // In some error cases we want to convey more info back to the observer
9960        String origPackage;
9961        String origPermission;
9962    }
9963
9964    /*
9965     * Install a non-existing package.
9966     */
9967    private void installNewPackageLI(PackageParser.Package pkg,
9968            int parseFlags, int scanFlags, UserHandle user,
9969            String installerPackageName, PackageInstalledInfo res) {
9970        // Remember this for later, in case we need to rollback this install
9971        String pkgName = pkg.packageName;
9972
9973        if (DEBUG_INSTALL) Slog.d(TAG, "installNewPackageLI: " + pkg);
9974        boolean dataDirExists = getDataPathForPackage(pkg.packageName, 0).exists();
9975        synchronized(mPackages) {
9976            if (mSettings.mRenamedPackages.containsKey(pkgName)) {
9977                // A package with the same name is already installed, though
9978                // it has been renamed to an older name.  The package we
9979                // are trying to install should be installed as an update to
9980                // the existing one, but that has not been requested, so bail.
9981                res.setError(INSTALL_FAILED_ALREADY_EXISTS, "Attempt to re-install " + pkgName
9982                        + " without first uninstalling package running as "
9983                        + mSettings.mRenamedPackages.get(pkgName));
9984                return;
9985            }
9986            if (mPackages.containsKey(pkgName)) {
9987                // Don't allow installation over an existing package with the same name.
9988                res.setError(INSTALL_FAILED_ALREADY_EXISTS, "Attempt to re-install " + pkgName
9989                        + " without first uninstalling.");
9990                return;
9991            }
9992        }
9993
9994        try {
9995            PackageParser.Package newPackage = scanPackageLI(pkg, parseFlags, scanFlags,
9996                    System.currentTimeMillis(), user);
9997
9998            updateSettingsLI(newPackage, installerPackageName, null, null, res);
9999            // delete the partially installed application. the data directory will have to be
10000            // restored if it was already existing
10001            if (res.returnCode != PackageManager.INSTALL_SUCCEEDED) {
10002                // remove package from internal structures.  Note that we want deletePackageX to
10003                // delete the package data and cache directories that it created in
10004                // scanPackageLocked, unless those directories existed before we even tried to
10005                // install.
10006                deletePackageLI(pkgName, UserHandle.ALL, false, null, null,
10007                        dataDirExists ? PackageManager.DELETE_KEEP_DATA : 0,
10008                                res.removedInfo, true);
10009            }
10010
10011        } catch (PackageManagerException e) {
10012            res.setError("Package couldn't be installed in " + pkg.codePath, e);
10013        }
10014    }
10015
10016    private boolean checkUpgradeKeySetLP(PackageSetting oldPS, PackageParser.Package newPkg) {
10017        // Upgrade keysets are being used.  Determine if new package has a superset of the
10018        // required keys.
10019        long[] upgradeKeySets = oldPS.keySetData.getUpgradeKeySets();
10020        KeySetManagerService ksms = mSettings.mKeySetManagerService;
10021        for (int i = 0; i < upgradeKeySets.length; i++) {
10022            Set<PublicKey> upgradeSet = ksms.getPublicKeysFromKeySetLPr(upgradeKeySets[i]);
10023            if (newPkg.mSigningKeys.containsAll(upgradeSet)) {
10024                return true;
10025            }
10026        }
10027        return false;
10028    }
10029
10030    private void replacePackageLI(PackageParser.Package pkg,
10031            int parseFlags, int scanFlags, UserHandle user,
10032            String installerPackageName, PackageInstalledInfo res) {
10033        PackageParser.Package oldPackage;
10034        String pkgName = pkg.packageName;
10035        int[] allUsers;
10036        boolean[] perUserInstalled;
10037
10038        // First find the old package info and check signatures
10039        synchronized(mPackages) {
10040            oldPackage = mPackages.get(pkgName);
10041            if (DEBUG_INSTALL) Slog.d(TAG, "replacePackageLI: new=" + pkg + ", old=" + oldPackage);
10042            PackageSetting ps = mSettings.mPackages.get(pkgName);
10043            if (ps == null || !ps.keySetData.isUsingUpgradeKeySets() || ps.sharedUser != null) {
10044                // default to original signature matching
10045                if (compareSignatures(oldPackage.mSignatures, pkg.mSignatures)
10046                    != PackageManager.SIGNATURE_MATCH) {
10047                    res.setError(INSTALL_PARSE_FAILED_INCONSISTENT_CERTIFICATES,
10048                            "New package has a different signature: " + pkgName);
10049                    return;
10050                }
10051            } else {
10052                if(!checkUpgradeKeySetLP(ps, pkg)) {
10053                    res.setError(INSTALL_PARSE_FAILED_INCONSISTENT_CERTIFICATES,
10054                            "New package not signed by keys specified by upgrade-keysets: "
10055                            + pkgName);
10056                    return;
10057                }
10058            }
10059
10060            // In case of rollback, remember per-user/profile install state
10061            allUsers = sUserManager.getUserIds();
10062            perUserInstalled = new boolean[allUsers.length];
10063            for (int i = 0; i < allUsers.length; i++) {
10064                perUserInstalled[i] = ps != null ? ps.getInstalled(allUsers[i]) : false;
10065            }
10066        }
10067
10068        boolean sysPkg = (isSystemApp(oldPackage));
10069        if (sysPkg) {
10070            replaceSystemPackageLI(oldPackage, pkg, parseFlags, scanFlags,
10071                    user, allUsers, perUserInstalled, installerPackageName, res);
10072        } else {
10073            replaceNonSystemPackageLI(oldPackage, pkg, parseFlags, scanFlags,
10074                    user, allUsers, perUserInstalled, installerPackageName, res);
10075        }
10076    }
10077
10078    private void replaceNonSystemPackageLI(PackageParser.Package deletedPackage,
10079            PackageParser.Package pkg, int parseFlags, int scanFlags, UserHandle user,
10080            int[] allUsers, boolean[] perUserInstalled,
10081            String installerPackageName, PackageInstalledInfo res) {
10082        String pkgName = deletedPackage.packageName;
10083        boolean deletedPkg = true;
10084        boolean updatedSettings = false;
10085
10086        if (DEBUG_INSTALL) Slog.d(TAG, "replaceNonSystemPackageLI: new=" + pkg + ", old="
10087                + deletedPackage);
10088        long origUpdateTime;
10089        if (pkg.mExtras != null) {
10090            origUpdateTime = ((PackageSetting)pkg.mExtras).lastUpdateTime;
10091        } else {
10092            origUpdateTime = 0;
10093        }
10094
10095        // First delete the existing package while retaining the data directory
10096        if (!deletePackageLI(pkgName, null, true, null, null, PackageManager.DELETE_KEEP_DATA,
10097                res.removedInfo, true)) {
10098            // If the existing package wasn't successfully deleted
10099            res.setError(INSTALL_FAILED_REPLACE_COULDNT_DELETE, "replaceNonSystemPackageLI");
10100            deletedPkg = false;
10101        } else {
10102            // Successfully deleted the old package; proceed with replace.
10103
10104            // If deleted package lived in a container, give users a chance to
10105            // relinquish resources before killing.
10106            if (isForwardLocked(deletedPackage) || isExternal(deletedPackage)) {
10107                if (DEBUG_INSTALL) {
10108                    Slog.i(TAG, "upgrading pkg " + deletedPackage + " is ASEC-hosted -> UNAVAILABLE");
10109                }
10110                final int[] uidArray = new int[] { deletedPackage.applicationInfo.uid };
10111                final ArrayList<String> pkgList = new ArrayList<String>(1);
10112                pkgList.add(deletedPackage.applicationInfo.packageName);
10113                sendResourcesChangedBroadcast(false, true, pkgList, uidArray, null);
10114            }
10115
10116            deleteCodeCacheDirsLI(pkgName);
10117            try {
10118                final PackageParser.Package newPackage = scanPackageLI(pkg, parseFlags,
10119                        scanFlags | SCAN_UPDATE_TIME, System.currentTimeMillis(), user);
10120                updateSettingsLI(newPackage, installerPackageName, allUsers, perUserInstalled, res);
10121                updatedSettings = true;
10122            } catch (PackageManagerException e) {
10123                res.setError("Package couldn't be installed in " + pkg.codePath, e);
10124            }
10125        }
10126
10127        if (res.returnCode != PackageManager.INSTALL_SUCCEEDED) {
10128            // remove package from internal structures.  Note that we want deletePackageX to
10129            // delete the package data and cache directories that it created in
10130            // scanPackageLocked, unless those directories existed before we even tried to
10131            // install.
10132            if(updatedSettings) {
10133                if (DEBUG_INSTALL) Slog.d(TAG, "Install failed, rolling pack: " + pkgName);
10134                deletePackageLI(
10135                        pkgName, null, true, allUsers, perUserInstalled,
10136                        PackageManager.DELETE_KEEP_DATA,
10137                                res.removedInfo, true);
10138            }
10139            // Since we failed to install the new package we need to restore the old
10140            // package that we deleted.
10141            if (deletedPkg) {
10142                if (DEBUG_INSTALL) Slog.d(TAG, "Install failed, reinstalling: " + deletedPackage);
10143                File restoreFile = new File(deletedPackage.codePath);
10144                // Parse old package
10145                boolean oldOnSd = isExternal(deletedPackage);
10146                int oldParseFlags  = mDefParseFlags | PackageParser.PARSE_CHATTY |
10147                        (isForwardLocked(deletedPackage) ? PackageParser.PARSE_FORWARD_LOCK : 0) |
10148                        (oldOnSd ? PackageParser.PARSE_ON_SDCARD : 0);
10149                int oldScanFlags = SCAN_UPDATE_SIGNATURE | SCAN_UPDATE_TIME;
10150                try {
10151                    scanPackageLI(restoreFile, oldParseFlags, oldScanFlags, origUpdateTime, null);
10152                } catch (PackageManagerException e) {
10153                    Slog.e(TAG, "Failed to restore package : " + pkgName + " after failed upgrade: "
10154                            + e.getMessage());
10155                    return;
10156                }
10157                // Restore of old package succeeded. Update permissions.
10158                // writer
10159                synchronized (mPackages) {
10160                    updatePermissionsLPw(deletedPackage.packageName, deletedPackage,
10161                            UPDATE_PERMISSIONS_ALL);
10162                    // can downgrade to reader
10163                    mSettings.writeLPr();
10164                }
10165                Slog.i(TAG, "Successfully restored package : " + pkgName + " after failed upgrade");
10166            }
10167        }
10168    }
10169
10170    private void replaceSystemPackageLI(PackageParser.Package deletedPackage,
10171            PackageParser.Package pkg, int parseFlags, int scanFlags, UserHandle user,
10172            int[] allUsers, boolean[] perUserInstalled,
10173            String installerPackageName, PackageInstalledInfo res) {
10174        if (DEBUG_INSTALL) Slog.d(TAG, "replaceSystemPackageLI: new=" + pkg
10175                + ", old=" + deletedPackage);
10176        boolean disabledSystem = false;
10177        boolean updatedSettings = false;
10178        parseFlags |= PackageParser.PARSE_IS_SYSTEM;
10179        if ((deletedPackage.applicationInfo.flags&ApplicationInfo.FLAG_PRIVILEGED) != 0) {
10180            parseFlags |= PackageParser.PARSE_IS_PRIVILEGED;
10181        }
10182        String packageName = deletedPackage.packageName;
10183        if (packageName == null) {
10184            res.setError(INSTALL_FAILED_REPLACE_COULDNT_DELETE,
10185                    "Attempt to delete null packageName.");
10186            return;
10187        }
10188        PackageParser.Package oldPkg;
10189        PackageSetting oldPkgSetting;
10190        // reader
10191        synchronized (mPackages) {
10192            oldPkg = mPackages.get(packageName);
10193            oldPkgSetting = mSettings.mPackages.get(packageName);
10194            if((oldPkg == null) || (oldPkg.applicationInfo == null) ||
10195                    (oldPkgSetting == null)) {
10196                res.setError(INSTALL_FAILED_REPLACE_COULDNT_DELETE,
10197                        "Couldn't find package:" + packageName + " information");
10198                return;
10199            }
10200        }
10201
10202        killApplication(packageName, oldPkg.applicationInfo.uid, "replace sys pkg");
10203
10204        res.removedInfo.uid = oldPkg.applicationInfo.uid;
10205        res.removedInfo.removedPackage = packageName;
10206        // Remove existing system package
10207        removePackageLI(oldPkgSetting, true);
10208        // writer
10209        synchronized (mPackages) {
10210            disabledSystem = mSettings.disableSystemPackageLPw(packageName);
10211            if (!disabledSystem && deletedPackage != null) {
10212                // We didn't need to disable the .apk as a current system package,
10213                // which means we are replacing another update that is already
10214                // installed.  We need to make sure to delete the older one's .apk.
10215                res.removedInfo.args = createInstallArgsForExisting(0,
10216                        deletedPackage.applicationInfo.getCodePath(),
10217                        deletedPackage.applicationInfo.getResourcePath(),
10218                        deletedPackage.applicationInfo.nativeLibraryRootDir,
10219                        getAppDexInstructionSets(deletedPackage.applicationInfo));
10220            } else {
10221                res.removedInfo.args = null;
10222            }
10223        }
10224
10225        // Successfully disabled the old package. Now proceed with re-installation
10226        deleteCodeCacheDirsLI(packageName);
10227
10228        res.returnCode = PackageManager.INSTALL_SUCCEEDED;
10229        pkg.applicationInfo.flags |= ApplicationInfo.FLAG_UPDATED_SYSTEM_APP;
10230
10231        PackageParser.Package newPackage = null;
10232        try {
10233            newPackage = scanPackageLI(pkg, parseFlags, scanFlags, 0, user);
10234            if (newPackage.mExtras != null) {
10235                final PackageSetting newPkgSetting = (PackageSetting) newPackage.mExtras;
10236                newPkgSetting.firstInstallTime = oldPkgSetting.firstInstallTime;
10237                newPkgSetting.lastUpdateTime = System.currentTimeMillis();
10238
10239                // is the update attempting to change shared user? that isn't going to work...
10240                if (oldPkgSetting.sharedUser != newPkgSetting.sharedUser) {
10241                    res.setError(INSTALL_FAILED_SHARED_USER_INCOMPATIBLE,
10242                            "Forbidding shared user change from " + oldPkgSetting.sharedUser
10243                            + " to " + newPkgSetting.sharedUser);
10244                    updatedSettings = true;
10245                }
10246            }
10247
10248            if (res.returnCode == PackageManager.INSTALL_SUCCEEDED) {
10249                updateSettingsLI(newPackage, installerPackageName, allUsers, perUserInstalled, res);
10250                updatedSettings = true;
10251            }
10252
10253        } catch (PackageManagerException e) {
10254            res.setError("Package couldn't be installed in " + pkg.codePath, e);
10255        }
10256
10257        if (res.returnCode != PackageManager.INSTALL_SUCCEEDED) {
10258            // Re installation failed. Restore old information
10259            // Remove new pkg information
10260            if (newPackage != null) {
10261                removeInstalledPackageLI(newPackage, true);
10262            }
10263            // Add back the old system package
10264            try {
10265                scanPackageLI(oldPkg, parseFlags, SCAN_UPDATE_SIGNATURE, 0, user);
10266            } catch (PackageManagerException e) {
10267                Slog.e(TAG, "Failed to restore original package: " + e.getMessage());
10268            }
10269            // Restore the old system information in Settings
10270            synchronized (mPackages) {
10271                if (disabledSystem) {
10272                    mSettings.enableSystemPackageLPw(packageName);
10273                }
10274                if (updatedSettings) {
10275                    mSettings.setInstallerPackageName(packageName,
10276                            oldPkgSetting.installerPackageName);
10277                }
10278                mSettings.writeLPr();
10279            }
10280        }
10281    }
10282
10283    private void updateSettingsLI(PackageParser.Package newPackage, String installerPackageName,
10284            int[] allUsers, boolean[] perUserInstalled,
10285            PackageInstalledInfo res) {
10286        String pkgName = newPackage.packageName;
10287        synchronized (mPackages) {
10288            //write settings. the installStatus will be incomplete at this stage.
10289            //note that the new package setting would have already been
10290            //added to mPackages. It hasn't been persisted yet.
10291            mSettings.setInstallStatus(pkgName, PackageSettingBase.PKG_INSTALL_INCOMPLETE);
10292            mSettings.writeLPr();
10293        }
10294
10295        if (DEBUG_INSTALL) Slog.d(TAG, "New package installed in " + newPackage.codePath);
10296
10297        synchronized (mPackages) {
10298            updatePermissionsLPw(newPackage.packageName, newPackage,
10299                    UPDATE_PERMISSIONS_REPLACE_PKG | (newPackage.permissions.size() > 0
10300                            ? UPDATE_PERMISSIONS_ALL : 0));
10301            // For system-bundled packages, we assume that installing an upgraded version
10302            // of the package implies that the user actually wants to run that new code,
10303            // so we enable the package.
10304            if (isSystemApp(newPackage)) {
10305                // NB: implicit assumption that system package upgrades apply to all users
10306                if (DEBUG_INSTALL) {
10307                    Slog.d(TAG, "Implicitly enabling system package on upgrade: " + pkgName);
10308                }
10309                PackageSetting ps = mSettings.mPackages.get(pkgName);
10310                if (ps != null) {
10311                    if (res.origUsers != null) {
10312                        for (int userHandle : res.origUsers) {
10313                            ps.setEnabled(COMPONENT_ENABLED_STATE_DEFAULT,
10314                                    userHandle, installerPackageName);
10315                        }
10316                    }
10317                    // Also convey the prior install/uninstall state
10318                    if (allUsers != null && perUserInstalled != null) {
10319                        for (int i = 0; i < allUsers.length; i++) {
10320                            if (DEBUG_INSTALL) {
10321                                Slog.d(TAG, "    user " + allUsers[i]
10322                                        + " => " + perUserInstalled[i]);
10323                            }
10324                            ps.setInstalled(perUserInstalled[i], allUsers[i]);
10325                        }
10326                        // these install state changes will be persisted in the
10327                        // upcoming call to mSettings.writeLPr().
10328                    }
10329                }
10330            }
10331            res.name = pkgName;
10332            res.uid = newPackage.applicationInfo.uid;
10333            res.pkg = newPackage;
10334            mSettings.setInstallStatus(pkgName, PackageSettingBase.PKG_INSTALL_COMPLETE);
10335            mSettings.setInstallerPackageName(pkgName, installerPackageName);
10336            res.returnCode = PackageManager.INSTALL_SUCCEEDED;
10337            //to update install status
10338            mSettings.writeLPr();
10339        }
10340    }
10341
10342    private void installPackageLI(InstallArgs args, PackageInstalledInfo res) {
10343        final int installFlags = args.installFlags;
10344        String installerPackageName = args.installerPackageName;
10345        File tmpPackageFile = new File(args.getCodePath());
10346        boolean forwardLocked = ((installFlags & PackageManager.INSTALL_FORWARD_LOCK) != 0);
10347        boolean onSd = ((installFlags & PackageManager.INSTALL_EXTERNAL) != 0);
10348        boolean replace = false;
10349        final int scanFlags = SCAN_NEW_INSTALL | SCAN_FORCE_DEX | SCAN_UPDATE_SIGNATURE;
10350        // Result object to be returned
10351        res.returnCode = PackageManager.INSTALL_SUCCEEDED;
10352
10353        if (DEBUG_INSTALL) Slog.d(TAG, "installPackageLI: path=" + tmpPackageFile);
10354        // Retrieve PackageSettings and parse package
10355        final int parseFlags = mDefParseFlags | PackageParser.PARSE_CHATTY
10356                | (forwardLocked ? PackageParser.PARSE_FORWARD_LOCK : 0)
10357                | (onSd ? PackageParser.PARSE_ON_SDCARD : 0);
10358        PackageParser pp = new PackageParser();
10359        pp.setSeparateProcesses(mSeparateProcesses);
10360        pp.setDisplayMetrics(mMetrics);
10361
10362        final PackageParser.Package pkg;
10363        try {
10364            pkg = pp.parsePackage(tmpPackageFile, parseFlags);
10365        } catch (PackageParserException e) {
10366            res.setError("Failed parse during installPackageLI", e);
10367            return;
10368        }
10369
10370        // Mark that we have an install time CPU ABI override.
10371        pkg.cpuAbiOverride = args.abiOverride;
10372
10373        String pkgName = res.name = pkg.packageName;
10374        if ((pkg.applicationInfo.flags&ApplicationInfo.FLAG_TEST_ONLY) != 0) {
10375            if ((installFlags & PackageManager.INSTALL_ALLOW_TEST) == 0) {
10376                res.setError(INSTALL_FAILED_TEST_ONLY, "installPackageLI");
10377                return;
10378            }
10379        }
10380
10381        try {
10382            pp.collectCertificates(pkg, parseFlags);
10383            pp.collectManifestDigest(pkg);
10384        } catch (PackageParserException e) {
10385            res.setError("Failed collect during installPackageLI", e);
10386            return;
10387        }
10388
10389        /* If the installer passed in a manifest digest, compare it now. */
10390        if (args.manifestDigest != null) {
10391            if (DEBUG_INSTALL) {
10392                final String parsedManifest = pkg.manifestDigest == null ? "null"
10393                        : pkg.manifestDigest.toString();
10394                Slog.d(TAG, "Comparing manifests: " + args.manifestDigest.toString() + " vs. "
10395                        + parsedManifest);
10396            }
10397
10398            if (!args.manifestDigest.equals(pkg.manifestDigest)) {
10399                res.setError(INSTALL_FAILED_PACKAGE_CHANGED, "Manifest digest changed");
10400                return;
10401            }
10402        } else if (DEBUG_INSTALL) {
10403            final String parsedManifest = pkg.manifestDigest == null
10404                    ? "null" : pkg.manifestDigest.toString();
10405            Slog.d(TAG, "manifestDigest was not present, but parser got: " + parsedManifest);
10406        }
10407
10408        // Get rid of all references to package scan path via parser.
10409        pp = null;
10410        String oldCodePath = null;
10411        boolean systemApp = false;
10412        synchronized (mPackages) {
10413            // Check if installing already existing package
10414            if ((installFlags & PackageManager.INSTALL_REPLACE_EXISTING) != 0) {
10415                String oldName = mSettings.mRenamedPackages.get(pkgName);
10416                if (pkg.mOriginalPackages != null
10417                        && pkg.mOriginalPackages.contains(oldName)
10418                        && mPackages.containsKey(oldName)) {
10419                    // This package is derived from an original package,
10420                    // and this device has been updating from that original
10421                    // name.  We must continue using the original name, so
10422                    // rename the new package here.
10423                    pkg.setPackageName(oldName);
10424                    pkgName = pkg.packageName;
10425                    replace = true;
10426                    if (DEBUG_INSTALL) Slog.d(TAG, "Replacing existing renamed package: oldName="
10427                            + oldName + " pkgName=" + pkgName);
10428                } else if (mPackages.containsKey(pkgName)) {
10429                    // This package, under its official name, already exists
10430                    // on the device; we should replace it.
10431                    replace = true;
10432                    if (DEBUG_INSTALL) Slog.d(TAG, "Replace existing pacakge: " + pkgName);
10433                }
10434            }
10435
10436            PackageSetting ps = mSettings.mPackages.get(pkgName);
10437            if (ps != null) {
10438                if (DEBUG_INSTALL) Slog.d(TAG, "Existing package: " + ps);
10439
10440                // Quick sanity check that we're signed correctly if updating;
10441                // we'll check this again later when scanning, but we want to
10442                // bail early here before tripping over redefined permissions.
10443                if (!ps.keySetData.isUsingUpgradeKeySets() || ps.sharedUser != null) {
10444                    try {
10445                        verifySignaturesLP(ps, pkg);
10446                    } catch (PackageManagerException e) {
10447                        res.setError(e.error, e.getMessage());
10448                        return;
10449                    }
10450                } else {
10451                    if (!checkUpgradeKeySetLP(ps, pkg)) {
10452                        res.setError(INSTALL_FAILED_UPDATE_INCOMPATIBLE, "Package "
10453                                + pkg.packageName + " upgrade keys do not match the "
10454                                + "previously installed version");
10455                        return;
10456                    }
10457                }
10458
10459                oldCodePath = mSettings.mPackages.get(pkgName).codePathString;
10460                if (ps.pkg != null && ps.pkg.applicationInfo != null) {
10461                    systemApp = (ps.pkg.applicationInfo.flags &
10462                            ApplicationInfo.FLAG_SYSTEM) != 0;
10463                }
10464                res.origUsers = ps.queryInstalledUsers(sUserManager.getUserIds(), true);
10465            }
10466
10467            // Check whether the newly-scanned package wants to define an already-defined perm
10468            int N = pkg.permissions.size();
10469            for (int i = N-1; i >= 0; i--) {
10470                PackageParser.Permission perm = pkg.permissions.get(i);
10471                BasePermission bp = mSettings.mPermissions.get(perm.info.name);
10472                if (bp != null) {
10473                    // If the defining package is signed with our cert, it's okay.  This
10474                    // also includes the "updating the same package" case, of course.
10475                    // "updating same package" could also involve key-rotation.
10476                    final boolean sigsOk;
10477                    if (!bp.sourcePackage.equals(pkg.packageName)
10478                            || !(bp.packageSetting instanceof PackageSetting)
10479                            || !bp.packageSetting.keySetData.isUsingUpgradeKeySets()
10480                            || ((PackageSetting) bp.packageSetting).sharedUser != null) {
10481                        sigsOk = compareSignatures(bp.packageSetting.signatures.mSignatures,
10482                                pkg.mSignatures) == PackageManager.SIGNATURE_MATCH;
10483                    } else {
10484                        sigsOk = checkUpgradeKeySetLP((PackageSetting) bp.packageSetting, pkg);
10485                    }
10486                    if (!sigsOk) {
10487                        // If the owning package is the system itself, we log but allow
10488                        // install to proceed; we fail the install on all other permission
10489                        // redefinitions.
10490                        if (!bp.sourcePackage.equals("android")) {
10491                            res.setError(INSTALL_FAILED_DUPLICATE_PERMISSION, "Package "
10492                                    + pkg.packageName + " attempting to redeclare permission "
10493                                    + perm.info.name + " already owned by " + bp.sourcePackage);
10494                            res.origPermission = perm.info.name;
10495                            res.origPackage = bp.sourcePackage;
10496                            return;
10497                        } else {
10498                            Slog.w(TAG, "Package " + pkg.packageName
10499                                    + " attempting to redeclare system permission "
10500                                    + perm.info.name + "; ignoring new declaration");
10501                            pkg.permissions.remove(i);
10502                        }
10503                    }
10504                }
10505            }
10506
10507        }
10508
10509        if (systemApp && onSd) {
10510            // Disable updates to system apps on sdcard
10511            res.setError(INSTALL_FAILED_INVALID_INSTALL_LOCATION,
10512                    "Cannot install updates to system apps on sdcard");
10513            return;
10514        }
10515
10516        if (!args.doRename(res.returnCode, pkg, oldCodePath)) {
10517            res.setError(INSTALL_FAILED_INSUFFICIENT_STORAGE, "Failed rename");
10518            return;
10519        }
10520
10521        if (replace) {
10522            replacePackageLI(pkg, parseFlags, scanFlags | SCAN_REPLACING, args.user,
10523                    installerPackageName, res);
10524        } else {
10525            installNewPackageLI(pkg, parseFlags, scanFlags | SCAN_DELETE_DATA_ON_FAILURES,
10526                    args.user, installerPackageName, res);
10527        }
10528        synchronized (mPackages) {
10529            final PackageSetting ps = mSettings.mPackages.get(pkgName);
10530            if (ps != null) {
10531                res.newUsers = ps.queryInstalledUsers(sUserManager.getUserIds(), true);
10532            }
10533        }
10534    }
10535
10536    private static boolean isForwardLocked(PackageParser.Package pkg) {
10537        return (pkg.applicationInfo.flags & ApplicationInfo.FLAG_FORWARD_LOCK) != 0;
10538    }
10539
10540    private static boolean isForwardLocked(ApplicationInfo info) {
10541        return (info.flags & ApplicationInfo.FLAG_FORWARD_LOCK) != 0;
10542    }
10543
10544    private boolean isForwardLocked(PackageSetting ps) {
10545        return (ps.pkgFlags & ApplicationInfo.FLAG_FORWARD_LOCK) != 0;
10546    }
10547
10548    private static boolean isMultiArch(PackageSetting ps) {
10549        return (ps.pkgFlags & ApplicationInfo.FLAG_MULTIARCH) != 0;
10550    }
10551
10552    private static boolean isMultiArch(ApplicationInfo info) {
10553        return (info.flags & ApplicationInfo.FLAG_MULTIARCH) != 0;
10554    }
10555
10556    private static boolean isExternal(PackageParser.Package pkg) {
10557        return (pkg.applicationInfo.flags & ApplicationInfo.FLAG_EXTERNAL_STORAGE) != 0;
10558    }
10559
10560    private static boolean isExternal(PackageSetting ps) {
10561        return (ps.pkgFlags & ApplicationInfo.FLAG_EXTERNAL_STORAGE) != 0;
10562    }
10563
10564    private static boolean isExternal(ApplicationInfo info) {
10565        return (info.flags & ApplicationInfo.FLAG_EXTERNAL_STORAGE) != 0;
10566    }
10567
10568    private static boolean isSystemApp(PackageParser.Package pkg) {
10569        return (pkg.applicationInfo.flags & ApplicationInfo.FLAG_SYSTEM) != 0;
10570    }
10571
10572    private static boolean isPrivilegedApp(PackageParser.Package pkg) {
10573        return (pkg.applicationInfo.flags & ApplicationInfo.FLAG_PRIVILEGED) != 0;
10574    }
10575
10576    private static boolean isSystemApp(ApplicationInfo info) {
10577        return (info.flags & ApplicationInfo.FLAG_SYSTEM) != 0;
10578    }
10579
10580    private static boolean isSystemApp(PackageSetting ps) {
10581        return (ps.pkgFlags & ApplicationInfo.FLAG_SYSTEM) != 0;
10582    }
10583
10584    private static boolean isUpdatedSystemApp(PackageSetting ps) {
10585        return (ps.pkgFlags & ApplicationInfo.FLAG_UPDATED_SYSTEM_APP) != 0;
10586    }
10587
10588    private static boolean isUpdatedSystemApp(PackageParser.Package pkg) {
10589        return (pkg.applicationInfo.flags & ApplicationInfo.FLAG_UPDATED_SYSTEM_APP) != 0;
10590    }
10591
10592    private static boolean isUpdatedSystemApp(ApplicationInfo info) {
10593        return (info.flags & ApplicationInfo.FLAG_UPDATED_SYSTEM_APP) != 0;
10594    }
10595
10596    private int packageFlagsToInstallFlags(PackageSetting ps) {
10597        int installFlags = 0;
10598        if (isExternal(ps)) {
10599            installFlags |= PackageManager.INSTALL_EXTERNAL;
10600        }
10601        if (isForwardLocked(ps)) {
10602            installFlags |= PackageManager.INSTALL_FORWARD_LOCK;
10603        }
10604        return installFlags;
10605    }
10606
10607    private void deleteTempPackageFiles() {
10608        final FilenameFilter filter = new FilenameFilter() {
10609            public boolean accept(File dir, String name) {
10610                return name.startsWith("vmdl") && name.endsWith(".tmp");
10611            }
10612        };
10613        for (File file : mDrmAppPrivateInstallDir.listFiles(filter)) {
10614            file.delete();
10615        }
10616    }
10617
10618    @Override
10619    public void deletePackageAsUser(String packageName, IPackageDeleteObserver observer, int userId,
10620            int flags) {
10621        deletePackage(packageName, new LegacyPackageDeleteObserver(observer).getBinder(), userId,
10622                flags);
10623    }
10624
10625    @Override
10626    public void deletePackage(final String packageName,
10627            final IPackageDeleteObserver2 observer, final int userId, final int flags) {
10628        mContext.enforceCallingOrSelfPermission(
10629                android.Manifest.permission.DELETE_PACKAGES, null);
10630        final int uid = Binder.getCallingUid();
10631        if (UserHandle.getUserId(uid) != userId) {
10632            mContext.enforceCallingPermission(
10633                    android.Manifest.permission.INTERACT_ACROSS_USERS_FULL,
10634                    "deletePackage for user " + userId);
10635        }
10636        if (isUserRestricted(userId, UserManager.DISALLOW_UNINSTALL_APPS)) {
10637            try {
10638                observer.onPackageDeleted(packageName,
10639                        PackageManager.DELETE_FAILED_USER_RESTRICTED, null);
10640            } catch (RemoteException re) {
10641            }
10642            return;
10643        }
10644
10645        boolean uninstallBlocked = false;
10646        if ((flags & PackageManager.DELETE_ALL_USERS) != 0) {
10647            int[] users = sUserManager.getUserIds();
10648            for (int i = 0; i < users.length; ++i) {
10649                if (getBlockUninstallForUser(packageName, users[i])) {
10650                    uninstallBlocked = true;
10651                    break;
10652                }
10653            }
10654        } else {
10655            uninstallBlocked = getBlockUninstallForUser(packageName, userId);
10656        }
10657        if (uninstallBlocked) {
10658            try {
10659                observer.onPackageDeleted(packageName, PackageManager.DELETE_FAILED_OWNER_BLOCKED,
10660                        null);
10661            } catch (RemoteException re) {
10662            }
10663            return;
10664        }
10665
10666        if (DEBUG_REMOVE) {
10667            Slog.d(TAG, "deletePackageAsUser: pkg=" + packageName + " user=" + userId);
10668        }
10669        // Queue up an async operation since the package deletion may take a little while.
10670        mHandler.post(new Runnable() {
10671            public void run() {
10672                mHandler.removeCallbacks(this);
10673                final int returnCode = deletePackageX(packageName, userId, flags);
10674                if (observer != null) {
10675                    try {
10676                        observer.onPackageDeleted(packageName, returnCode, null);
10677                    } catch (RemoteException e) {
10678                        Log.i(TAG, "Observer no longer exists.");
10679                    } //end catch
10680                } //end if
10681            } //end run
10682        });
10683    }
10684
10685    private boolean isPackageDeviceAdmin(String packageName, int userId) {
10686        IDevicePolicyManager dpm = IDevicePolicyManager.Stub.asInterface(
10687                ServiceManager.getService(Context.DEVICE_POLICY_SERVICE));
10688        try {
10689            if (dpm != null) {
10690                if (dpm.isDeviceOwner(packageName)) {
10691                    return true;
10692                }
10693                int[] users;
10694                if (userId == UserHandle.USER_ALL) {
10695                    users = sUserManager.getUserIds();
10696                } else {
10697                    users = new int[]{userId};
10698                }
10699                for (int i = 0; i < users.length; ++i) {
10700                    if (dpm.packageHasActiveAdmins(packageName, users[i])) {
10701                        return true;
10702                    }
10703                }
10704            }
10705        } catch (RemoteException e) {
10706        }
10707        return false;
10708    }
10709
10710    /**
10711     *  This method is an internal method that could be get invoked either
10712     *  to delete an installed package or to clean up a failed installation.
10713     *  After deleting an installed package, a broadcast is sent to notify any
10714     *  listeners that the package has been installed. For cleaning up a failed
10715     *  installation, the broadcast is not necessary since the package's
10716     *  installation wouldn't have sent the initial broadcast either
10717     *  The key steps in deleting a package are
10718     *  deleting the package information in internal structures like mPackages,
10719     *  deleting the packages base directories through installd
10720     *  updating mSettings to reflect current status
10721     *  persisting settings for later use
10722     *  sending a broadcast if necessary
10723     */
10724    private int deletePackageX(String packageName, int userId, int flags) {
10725        final PackageRemovedInfo info = new PackageRemovedInfo();
10726        final boolean res;
10727
10728        final UserHandle removeForUser = (flags & PackageManager.DELETE_ALL_USERS) != 0
10729                ? UserHandle.ALL : new UserHandle(userId);
10730
10731        if (isPackageDeviceAdmin(packageName, removeForUser.getIdentifier())) {
10732            Slog.w(TAG, "Not removing package " + packageName + ": has active device admin");
10733            return PackageManager.DELETE_FAILED_DEVICE_POLICY_MANAGER;
10734        }
10735
10736        boolean removedForAllUsers = false;
10737        boolean systemUpdate = false;
10738
10739        // for the uninstall-updates case and restricted profiles, remember the per-
10740        // userhandle installed state
10741        int[] allUsers;
10742        boolean[] perUserInstalled;
10743        synchronized (mPackages) {
10744            PackageSetting ps = mSettings.mPackages.get(packageName);
10745            allUsers = sUserManager.getUserIds();
10746            perUserInstalled = new boolean[allUsers.length];
10747            for (int i = 0; i < allUsers.length; i++) {
10748                perUserInstalled[i] = ps != null ? ps.getInstalled(allUsers[i]) : false;
10749            }
10750        }
10751
10752        synchronized (mInstallLock) {
10753            if (DEBUG_REMOVE) Slog.d(TAG, "deletePackageX: pkg=" + packageName + " user=" + userId);
10754            res = deletePackageLI(packageName, removeForUser,
10755                    true, allUsers, perUserInstalled,
10756                    flags | REMOVE_CHATTY, info, true);
10757            systemUpdate = info.isRemovedPackageSystemUpdate;
10758            if (res && !systemUpdate && mPackages.get(packageName) == null) {
10759                removedForAllUsers = true;
10760            }
10761            if (DEBUG_REMOVE) Slog.d(TAG, "delete res: systemUpdate=" + systemUpdate
10762                    + " removedForAllUsers=" + removedForAllUsers);
10763        }
10764
10765        if (res) {
10766            info.sendBroadcast(true, systemUpdate, removedForAllUsers);
10767
10768            // If the removed package was a system update, the old system package
10769            // was re-enabled; we need to broadcast this information
10770            if (systemUpdate) {
10771                Bundle extras = new Bundle(1);
10772                extras.putInt(Intent.EXTRA_UID, info.removedAppId >= 0
10773                        ? info.removedAppId : info.uid);
10774                extras.putBoolean(Intent.EXTRA_REPLACING, true);
10775
10776                sendPackageBroadcast(Intent.ACTION_PACKAGE_ADDED, packageName,
10777                        extras, null, null, null);
10778                sendPackageBroadcast(Intent.ACTION_PACKAGE_REPLACED, packageName,
10779                        extras, null, null, null);
10780                sendPackageBroadcast(Intent.ACTION_MY_PACKAGE_REPLACED, null,
10781                        null, packageName, null, null);
10782            }
10783        }
10784        // Force a gc here.
10785        Runtime.getRuntime().gc();
10786        // Delete the resources here after sending the broadcast to let
10787        // other processes clean up before deleting resources.
10788        if (info.args != null) {
10789            synchronized (mInstallLock) {
10790                info.args.doPostDeleteLI(true);
10791            }
10792        }
10793
10794        return res ? PackageManager.DELETE_SUCCEEDED : PackageManager.DELETE_FAILED_INTERNAL_ERROR;
10795    }
10796
10797    static class PackageRemovedInfo {
10798        String removedPackage;
10799        int uid = -1;
10800        int removedAppId = -1;
10801        int[] removedUsers = null;
10802        boolean isRemovedPackageSystemUpdate = false;
10803        // Clean up resources deleted packages.
10804        InstallArgs args = null;
10805
10806        void sendBroadcast(boolean fullRemove, boolean replacing, boolean removedForAllUsers) {
10807            Bundle extras = new Bundle(1);
10808            extras.putInt(Intent.EXTRA_UID, removedAppId >= 0 ? removedAppId : uid);
10809            extras.putBoolean(Intent.EXTRA_DATA_REMOVED, fullRemove);
10810            if (replacing) {
10811                extras.putBoolean(Intent.EXTRA_REPLACING, true);
10812            }
10813            extras.putBoolean(Intent.EXTRA_REMOVED_FOR_ALL_USERS, removedForAllUsers);
10814            if (removedPackage != null) {
10815                sendPackageBroadcast(Intent.ACTION_PACKAGE_REMOVED, removedPackage,
10816                        extras, null, null, removedUsers);
10817                if (fullRemove && !replacing) {
10818                    sendPackageBroadcast(Intent.ACTION_PACKAGE_FULLY_REMOVED, removedPackage,
10819                            extras, null, null, removedUsers);
10820                }
10821            }
10822            if (removedAppId >= 0) {
10823                sendPackageBroadcast(Intent.ACTION_UID_REMOVED, null, extras, null, null,
10824                        removedUsers);
10825            }
10826        }
10827    }
10828
10829    /*
10830     * This method deletes the package from internal data structures. If the DONT_DELETE_DATA
10831     * flag is not set, the data directory is removed as well.
10832     * make sure this flag is set for partially installed apps. If not its meaningless to
10833     * delete a partially installed application.
10834     */
10835    private void removePackageDataLI(PackageSetting ps,
10836            int[] allUserHandles, boolean[] perUserInstalled,
10837            PackageRemovedInfo outInfo, int flags, boolean writeSettings) {
10838        String packageName = ps.name;
10839        if (DEBUG_REMOVE) Slog.d(TAG, "removePackageDataLI: " + ps);
10840        removePackageLI(ps, (flags&REMOVE_CHATTY) != 0);
10841        // Retrieve object to delete permissions for shared user later on
10842        final PackageSetting deletedPs;
10843        // reader
10844        synchronized (mPackages) {
10845            deletedPs = mSettings.mPackages.get(packageName);
10846            if (outInfo != null) {
10847                outInfo.removedPackage = packageName;
10848                outInfo.removedUsers = deletedPs != null
10849                        ? deletedPs.queryInstalledUsers(sUserManager.getUserIds(), true)
10850                        : null;
10851            }
10852        }
10853        if ((flags&PackageManager.DELETE_KEEP_DATA) == 0) {
10854            removeDataDirsLI(packageName);
10855            schedulePackageCleaning(packageName, UserHandle.USER_ALL, true);
10856        }
10857        // writer
10858        synchronized (mPackages) {
10859            if (deletedPs != null) {
10860                if ((flags&PackageManager.DELETE_KEEP_DATA) == 0) {
10861                    if (outInfo != null) {
10862                        mSettings.mKeySetManagerService.removeAppKeySetDataLPw(packageName);
10863                        outInfo.removedAppId = mSettings.removePackageLPw(packageName);
10864                    }
10865                    if (deletedPs != null) {
10866                        updatePermissionsLPw(deletedPs.name, null, 0);
10867                        if (deletedPs.sharedUser != null) {
10868                            // remove permissions associated with package
10869                            mSettings.updateSharedUserPermsLPw(deletedPs, mGlobalGids);
10870                        }
10871                    }
10872                    clearPackagePreferredActivitiesLPw(deletedPs.name, UserHandle.USER_ALL);
10873                }
10874                // make sure to preserve per-user disabled state if this removal was just
10875                // a downgrade of a system app to the factory package
10876                if (allUserHandles != null && perUserInstalled != null) {
10877                    if (DEBUG_REMOVE) {
10878                        Slog.d(TAG, "Propagating install state across downgrade");
10879                    }
10880                    for (int i = 0; i < allUserHandles.length; i++) {
10881                        if (DEBUG_REMOVE) {
10882                            Slog.d(TAG, "    user " + allUserHandles[i]
10883                                    + " => " + perUserInstalled[i]);
10884                        }
10885                        ps.setInstalled(perUserInstalled[i], allUserHandles[i]);
10886                    }
10887                }
10888            }
10889            // can downgrade to reader
10890            if (writeSettings) {
10891                // Save settings now
10892                mSettings.writeLPr();
10893            }
10894        }
10895        if (outInfo != null) {
10896            // A user ID was deleted here. Go through all users and remove it
10897            // from KeyStore.
10898            removeKeystoreDataIfNeeded(UserHandle.USER_ALL, outInfo.removedAppId);
10899        }
10900    }
10901
10902    static boolean locationIsPrivileged(File path) {
10903        try {
10904            final String privilegedAppDir = new File(Environment.getRootDirectory(), "priv-app")
10905                    .getCanonicalPath();
10906            return path.getCanonicalPath().startsWith(privilegedAppDir);
10907        } catch (IOException e) {
10908            Slog.e(TAG, "Unable to access code path " + path);
10909        }
10910        return false;
10911    }
10912
10913    /*
10914     * Tries to delete system package.
10915     */
10916    private boolean deleteSystemPackageLI(PackageSetting newPs,
10917            int[] allUserHandles, boolean[] perUserInstalled,
10918            int flags, PackageRemovedInfo outInfo, boolean writeSettings) {
10919        final boolean applyUserRestrictions
10920                = (allUserHandles != null) && (perUserInstalled != null);
10921        PackageSetting disabledPs = null;
10922        // Confirm if the system package has been updated
10923        // An updated system app can be deleted. This will also have to restore
10924        // the system pkg from system partition
10925        // reader
10926        synchronized (mPackages) {
10927            disabledPs = mSettings.getDisabledSystemPkgLPr(newPs.name);
10928        }
10929        if (DEBUG_REMOVE) Slog.d(TAG, "deleteSystemPackageLI: newPs=" + newPs
10930                + " disabledPs=" + disabledPs);
10931        if (disabledPs == null) {
10932            Slog.w(TAG, "Attempt to delete unknown system package "+ newPs.name);
10933            return false;
10934        } else if (DEBUG_REMOVE) {
10935            Slog.d(TAG, "Deleting system pkg from data partition");
10936        }
10937        if (DEBUG_REMOVE) {
10938            if (applyUserRestrictions) {
10939                Slog.d(TAG, "Remembering install states:");
10940                for (int i = 0; i < allUserHandles.length; i++) {
10941                    Slog.d(TAG, "   u=" + allUserHandles[i] + " inst=" + perUserInstalled[i]);
10942                }
10943            }
10944        }
10945        // Delete the updated package
10946        outInfo.isRemovedPackageSystemUpdate = true;
10947        if (disabledPs.versionCode < newPs.versionCode) {
10948            // Delete data for downgrades
10949            flags &= ~PackageManager.DELETE_KEEP_DATA;
10950        } else {
10951            // Preserve data by setting flag
10952            flags |= PackageManager.DELETE_KEEP_DATA;
10953        }
10954        boolean ret = deleteInstalledPackageLI(newPs, true, flags,
10955                allUserHandles, perUserInstalled, outInfo, writeSettings);
10956        if (!ret) {
10957            return false;
10958        }
10959        // writer
10960        synchronized (mPackages) {
10961            // Reinstate the old system package
10962            mSettings.enableSystemPackageLPw(newPs.name);
10963            // Remove any native libraries from the upgraded package.
10964            NativeLibraryHelper.removeNativeBinariesLI(newPs.legacyNativeLibraryPathString);
10965        }
10966        // Install the system package
10967        if (DEBUG_REMOVE) Slog.d(TAG, "Re-installing system package: " + disabledPs);
10968        int parseFlags = PackageParser.PARSE_MUST_BE_APK | PackageParser.PARSE_IS_SYSTEM;
10969        if (locationIsPrivileged(disabledPs.codePath)) {
10970            parseFlags |= PackageParser.PARSE_IS_PRIVILEGED;
10971        }
10972
10973        final PackageParser.Package newPkg;
10974        try {
10975            newPkg = scanPackageLI(disabledPs.codePath, parseFlags, SCAN_NO_PATHS, 0, null);
10976        } catch (PackageManagerException e) {
10977            Slog.w(TAG, "Failed to restore system package:" + newPs.name + ": " + e.getMessage());
10978            return false;
10979        }
10980
10981        // writer
10982        synchronized (mPackages) {
10983            PackageSetting ps = mSettings.mPackages.get(newPkg.packageName);
10984            updatePermissionsLPw(newPkg.packageName, newPkg,
10985                    UPDATE_PERMISSIONS_ALL | UPDATE_PERMISSIONS_REPLACE_PKG);
10986            if (applyUserRestrictions) {
10987                if (DEBUG_REMOVE) {
10988                    Slog.d(TAG, "Propagating install state across reinstall");
10989                }
10990                for (int i = 0; i < allUserHandles.length; i++) {
10991                    if (DEBUG_REMOVE) {
10992                        Slog.d(TAG, "    user " + allUserHandles[i]
10993                                + " => " + perUserInstalled[i]);
10994                    }
10995                    ps.setInstalled(perUserInstalled[i], allUserHandles[i]);
10996                }
10997                // Regardless of writeSettings we need to ensure that this restriction
10998                // state propagation is persisted
10999                mSettings.writeAllUsersPackageRestrictionsLPr();
11000            }
11001            // can downgrade to reader here
11002            if (writeSettings) {
11003                mSettings.writeLPr();
11004            }
11005        }
11006        return true;
11007    }
11008
11009    private boolean deleteInstalledPackageLI(PackageSetting ps,
11010            boolean deleteCodeAndResources, int flags,
11011            int[] allUserHandles, boolean[] perUserInstalled,
11012            PackageRemovedInfo outInfo, boolean writeSettings) {
11013        if (outInfo != null) {
11014            outInfo.uid = ps.appId;
11015        }
11016
11017        // Delete package data from internal structures and also remove data if flag is set
11018        removePackageDataLI(ps, allUserHandles, perUserInstalled, outInfo, flags, writeSettings);
11019
11020        // Delete application code and resources
11021        if (deleteCodeAndResources && (outInfo != null)) {
11022            outInfo.args = createInstallArgsForExisting(packageFlagsToInstallFlags(ps),
11023                    ps.codePathString, ps.resourcePathString, ps.legacyNativeLibraryPathString,
11024                    getAppDexInstructionSets(ps));
11025            if (DEBUG_SD_INSTALL) Slog.i(TAG, "args=" + outInfo.args);
11026        }
11027        return true;
11028    }
11029
11030    @Override
11031    public boolean setBlockUninstallForUser(String packageName, boolean blockUninstall,
11032            int userId) {
11033        mContext.enforceCallingOrSelfPermission(
11034                android.Manifest.permission.DELETE_PACKAGES, null);
11035        synchronized (mPackages) {
11036            PackageSetting ps = mSettings.mPackages.get(packageName);
11037            if (ps == null) {
11038                Log.i(TAG, "Package doesn't exist in set block uninstall " + packageName);
11039                return false;
11040            }
11041            if (!ps.getInstalled(userId)) {
11042                // Can't block uninstall for an app that is not installed or enabled.
11043                Log.i(TAG, "Package not installed in set block uninstall " + packageName);
11044                return false;
11045            }
11046            ps.setBlockUninstall(blockUninstall, userId);
11047            mSettings.writePackageRestrictionsLPr(userId);
11048        }
11049        return true;
11050    }
11051
11052    @Override
11053    public boolean getBlockUninstallForUser(String packageName, int userId) {
11054        synchronized (mPackages) {
11055            PackageSetting ps = mSettings.mPackages.get(packageName);
11056            if (ps == null) {
11057                Log.i(TAG, "Package doesn't exist in get block uninstall " + packageName);
11058                return false;
11059            }
11060            return ps.getBlockUninstall(userId);
11061        }
11062    }
11063
11064    /*
11065     * This method handles package deletion in general
11066     */
11067    private boolean deletePackageLI(String packageName, UserHandle user,
11068            boolean deleteCodeAndResources, int[] allUserHandles, boolean[] perUserInstalled,
11069            int flags, PackageRemovedInfo outInfo,
11070            boolean writeSettings) {
11071        if (packageName == null) {
11072            Slog.w(TAG, "Attempt to delete null packageName.");
11073            return false;
11074        }
11075        if (DEBUG_REMOVE) Slog.d(TAG, "deletePackageLI: " + packageName + " user " + user);
11076        PackageSetting ps;
11077        boolean dataOnly = false;
11078        int removeUser = -1;
11079        int appId = -1;
11080        synchronized (mPackages) {
11081            ps = mSettings.mPackages.get(packageName);
11082            if (ps == null) {
11083                Slog.w(TAG, "Package named '" + packageName + "' doesn't exist.");
11084                return false;
11085            }
11086            if ((!isSystemApp(ps) || (flags&PackageManager.DELETE_SYSTEM_APP) != 0) && user != null
11087                    && user.getIdentifier() != UserHandle.USER_ALL) {
11088                // The caller is asking that the package only be deleted for a single
11089                // user.  To do this, we just mark its uninstalled state and delete
11090                // its data.  If this is a system app, we only allow this to happen if
11091                // they have set the special DELETE_SYSTEM_APP which requests different
11092                // semantics than normal for uninstalling system apps.
11093                if (DEBUG_REMOVE) Slog.d(TAG, "Only deleting for single user");
11094                ps.setUserState(user.getIdentifier(),
11095                        COMPONENT_ENABLED_STATE_DEFAULT,
11096                        false, //installed
11097                        true,  //stopped
11098                        true,  //notLaunched
11099                        false, //hidden
11100                        null, null, null,
11101                        false // blockUninstall
11102                        );
11103                if (!isSystemApp(ps)) {
11104                    if (ps.isAnyInstalled(sUserManager.getUserIds())) {
11105                        // Other user still have this package installed, so all
11106                        // we need to do is clear this user's data and save that
11107                        // it is uninstalled.
11108                        if (DEBUG_REMOVE) Slog.d(TAG, "Still installed by other users");
11109                        removeUser = user.getIdentifier();
11110                        appId = ps.appId;
11111                        mSettings.writePackageRestrictionsLPr(removeUser);
11112                    } else {
11113                        // We need to set it back to 'installed' so the uninstall
11114                        // broadcasts will be sent correctly.
11115                        if (DEBUG_REMOVE) Slog.d(TAG, "Not installed by other users, full delete");
11116                        ps.setInstalled(true, user.getIdentifier());
11117                    }
11118                } else {
11119                    // This is a system app, so we assume that the
11120                    // other users still have this package installed, so all
11121                    // we need to do is clear this user's data and save that
11122                    // it is uninstalled.
11123                    if (DEBUG_REMOVE) Slog.d(TAG, "Deleting system app");
11124                    removeUser = user.getIdentifier();
11125                    appId = ps.appId;
11126                    mSettings.writePackageRestrictionsLPr(removeUser);
11127                }
11128            }
11129        }
11130
11131        if (removeUser >= 0) {
11132            // From above, we determined that we are deleting this only
11133            // for a single user.  Continue the work here.
11134            if (DEBUG_REMOVE) Slog.d(TAG, "Updating install state for user: " + removeUser);
11135            if (outInfo != null) {
11136                outInfo.removedPackage = packageName;
11137                outInfo.removedAppId = appId;
11138                outInfo.removedUsers = new int[] {removeUser};
11139            }
11140            mInstaller.clearUserData(packageName, removeUser);
11141            removeKeystoreDataIfNeeded(removeUser, appId);
11142            schedulePackageCleaning(packageName, removeUser, false);
11143            return true;
11144        }
11145
11146        if (dataOnly) {
11147            // Delete application data first
11148            if (DEBUG_REMOVE) Slog.d(TAG, "Removing package data only");
11149            removePackageDataLI(ps, null, null, outInfo, flags, writeSettings);
11150            return true;
11151        }
11152
11153        boolean ret = false;
11154        if (isSystemApp(ps)) {
11155            if (DEBUG_REMOVE) Slog.d(TAG, "Removing system package:" + ps.name);
11156            // When an updated system application is deleted we delete the existing resources as well and
11157            // fall back to existing code in system partition
11158            ret = deleteSystemPackageLI(ps, allUserHandles, perUserInstalled,
11159                    flags, outInfo, writeSettings);
11160        } else {
11161            if (DEBUG_REMOVE) Slog.d(TAG, "Removing non-system package:" + ps.name);
11162            // Kill application pre-emptively especially for apps on sd.
11163            killApplication(packageName, ps.appId, "uninstall pkg");
11164            ret = deleteInstalledPackageLI(ps, deleteCodeAndResources, flags,
11165                    allUserHandles, perUserInstalled,
11166                    outInfo, writeSettings);
11167        }
11168
11169        return ret;
11170    }
11171
11172    private final class ClearStorageConnection implements ServiceConnection {
11173        IMediaContainerService mContainerService;
11174
11175        @Override
11176        public void onServiceConnected(ComponentName name, IBinder service) {
11177            synchronized (this) {
11178                mContainerService = IMediaContainerService.Stub.asInterface(service);
11179                notifyAll();
11180            }
11181        }
11182
11183        @Override
11184        public void onServiceDisconnected(ComponentName name) {
11185        }
11186    }
11187
11188    private void clearExternalStorageDataSync(String packageName, int userId, boolean allData) {
11189        final boolean mounted;
11190        if (Environment.isExternalStorageEmulated()) {
11191            mounted = true;
11192        } else {
11193            final String status = Environment.getExternalStorageState();
11194
11195            mounted = status.equals(Environment.MEDIA_MOUNTED)
11196                    || status.equals(Environment.MEDIA_MOUNTED_READ_ONLY);
11197        }
11198
11199        if (!mounted) {
11200            return;
11201        }
11202
11203        final Intent containerIntent = new Intent().setComponent(DEFAULT_CONTAINER_COMPONENT);
11204        int[] users;
11205        if (userId == UserHandle.USER_ALL) {
11206            users = sUserManager.getUserIds();
11207        } else {
11208            users = new int[] { userId };
11209        }
11210        final ClearStorageConnection conn = new ClearStorageConnection();
11211        if (mContext.bindServiceAsUser(
11212                containerIntent, conn, Context.BIND_AUTO_CREATE, UserHandle.OWNER)) {
11213            try {
11214                for (int curUser : users) {
11215                    long timeout = SystemClock.uptimeMillis() + 5000;
11216                    synchronized (conn) {
11217                        long now = SystemClock.uptimeMillis();
11218                        while (conn.mContainerService == null && now < timeout) {
11219                            try {
11220                                conn.wait(timeout - now);
11221                            } catch (InterruptedException e) {
11222                            }
11223                        }
11224                    }
11225                    if (conn.mContainerService == null) {
11226                        return;
11227                    }
11228
11229                    final UserEnvironment userEnv = new UserEnvironment(curUser);
11230                    clearDirectory(conn.mContainerService,
11231                            userEnv.buildExternalStorageAppCacheDirs(packageName));
11232                    if (allData) {
11233                        clearDirectory(conn.mContainerService,
11234                                userEnv.buildExternalStorageAppDataDirs(packageName));
11235                        clearDirectory(conn.mContainerService,
11236                                userEnv.buildExternalStorageAppMediaDirs(packageName));
11237                    }
11238                }
11239            } finally {
11240                mContext.unbindService(conn);
11241            }
11242        }
11243    }
11244
11245    @Override
11246    public void clearApplicationUserData(final String packageName,
11247            final IPackageDataObserver observer, final int userId) {
11248        mContext.enforceCallingOrSelfPermission(
11249                android.Manifest.permission.CLEAR_APP_USER_DATA, null);
11250        enforceCrossUserPermission(Binder.getCallingUid(), userId, true, false, "clear application data");
11251        // Queue up an async operation since the package deletion may take a little while.
11252        mHandler.post(new Runnable() {
11253            public void run() {
11254                mHandler.removeCallbacks(this);
11255                final boolean succeeded;
11256                synchronized (mInstallLock) {
11257                    succeeded = clearApplicationUserDataLI(packageName, userId);
11258                }
11259                clearExternalStorageDataSync(packageName, userId, true);
11260                if (succeeded) {
11261                    // invoke DeviceStorageMonitor's update method to clear any notifications
11262                    DeviceStorageMonitorInternal
11263                            dsm = LocalServices.getService(DeviceStorageMonitorInternal.class);
11264                    if (dsm != null) {
11265                        dsm.checkMemory();
11266                    }
11267                }
11268                if(observer != null) {
11269                    try {
11270                        observer.onRemoveCompleted(packageName, succeeded);
11271                    } catch (RemoteException e) {
11272                        Log.i(TAG, "Observer no longer exists.");
11273                    }
11274                } //end if observer
11275            } //end run
11276        });
11277    }
11278
11279    private boolean clearApplicationUserDataLI(String packageName, int userId) {
11280        if (packageName == null) {
11281            Slog.w(TAG, "Attempt to delete null packageName.");
11282            return false;
11283        }
11284
11285        // Try finding details about the requested package
11286        PackageParser.Package pkg;
11287        synchronized (mPackages) {
11288            pkg = mPackages.get(packageName);
11289            if (pkg == null) {
11290                final PackageSetting ps = mSettings.mPackages.get(packageName);
11291                if (ps != null) {
11292                    pkg = ps.pkg;
11293                }
11294            }
11295        }
11296
11297        if (pkg == null) {
11298            Slog.w(TAG, "Package named '" + packageName + "' doesn't exist.");
11299        }
11300
11301        // Always delete data directories for package, even if we found no other
11302        // record of app. This helps users recover from UID mismatches without
11303        // resorting to a full data wipe.
11304        int retCode = mInstaller.clearUserData(packageName, userId);
11305        if (retCode < 0) {
11306            Slog.w(TAG, "Couldn't remove cache files for package: " + packageName);
11307            return false;
11308        }
11309
11310        if (pkg == null) {
11311            return false;
11312        }
11313
11314        if (pkg != null && pkg.applicationInfo != null) {
11315            final int appId = pkg.applicationInfo.uid;
11316            removeKeystoreDataIfNeeded(userId, appId);
11317        }
11318
11319        // Create a native library symlink only if we have native libraries
11320        // and if the native libraries are 32 bit libraries. We do not provide
11321        // this symlink for 64 bit libraries.
11322        if (pkg != null && pkg.applicationInfo.primaryCpuAbi != null &&
11323                !VMRuntime.is64BitAbi(pkg.applicationInfo.primaryCpuAbi)) {
11324            final String nativeLibPath = pkg.applicationInfo.nativeLibraryDir;
11325            if (mInstaller.linkNativeLibraryDirectory(pkg.packageName, nativeLibPath, userId) < 0) {
11326                Slog.w(TAG, "Failed linking native library dir");
11327                return false;
11328            }
11329        }
11330
11331        return true;
11332    }
11333
11334    /**
11335     * Remove entries from the keystore daemon. Will only remove it if the
11336     * {@code appId} is valid.
11337     */
11338    private static void removeKeystoreDataIfNeeded(int userId, int appId) {
11339        if (appId < 0) {
11340            return;
11341        }
11342
11343        final KeyStore keyStore = KeyStore.getInstance();
11344        if (keyStore != null) {
11345            if (userId == UserHandle.USER_ALL) {
11346                for (final int individual : sUserManager.getUserIds()) {
11347                    keyStore.clearUid(UserHandle.getUid(individual, appId));
11348                }
11349            } else {
11350                keyStore.clearUid(UserHandle.getUid(userId, appId));
11351            }
11352        } else {
11353            Slog.w(TAG, "Could not contact keystore to clear entries for app id " + appId);
11354        }
11355    }
11356
11357    @Override
11358    public void deleteApplicationCacheFiles(final String packageName,
11359            final IPackageDataObserver observer) {
11360        mContext.enforceCallingOrSelfPermission(
11361                android.Manifest.permission.DELETE_CACHE_FILES, null);
11362        // Queue up an async operation since the package deletion may take a little while.
11363        final int userId = UserHandle.getCallingUserId();
11364        mHandler.post(new Runnable() {
11365            public void run() {
11366                mHandler.removeCallbacks(this);
11367                final boolean succeded;
11368                synchronized (mInstallLock) {
11369                    succeded = deleteApplicationCacheFilesLI(packageName, userId);
11370                }
11371                clearExternalStorageDataSync(packageName, userId, false);
11372                if(observer != null) {
11373                    try {
11374                        observer.onRemoveCompleted(packageName, succeded);
11375                    } catch (RemoteException e) {
11376                        Log.i(TAG, "Observer no longer exists.");
11377                    }
11378                } //end if observer
11379            } //end run
11380        });
11381    }
11382
11383    private boolean deleteApplicationCacheFilesLI(String packageName, int userId) {
11384        if (packageName == null) {
11385            Slog.w(TAG, "Attempt to delete null packageName.");
11386            return false;
11387        }
11388        PackageParser.Package p;
11389        synchronized (mPackages) {
11390            p = mPackages.get(packageName);
11391        }
11392        if (p == null) {
11393            Slog.w(TAG, "Package named '" + packageName +"' doesn't exist.");
11394            return false;
11395        }
11396        final ApplicationInfo applicationInfo = p.applicationInfo;
11397        if (applicationInfo == null) {
11398            Slog.w(TAG, "Package " + packageName + " has no applicationInfo.");
11399            return false;
11400        }
11401        int retCode = mInstaller.deleteCacheFiles(packageName, userId);
11402        if (retCode < 0) {
11403            Slog.w(TAG, "Couldn't remove cache files for package: "
11404                       + packageName + " u" + userId);
11405            return false;
11406        }
11407        return true;
11408    }
11409
11410    @Override
11411    public void getPackageSizeInfo(final String packageName, int userHandle,
11412            final IPackageStatsObserver observer) {
11413        mContext.enforceCallingOrSelfPermission(
11414                android.Manifest.permission.GET_PACKAGE_SIZE, null);
11415        if (packageName == null) {
11416            throw new IllegalArgumentException("Attempt to get size of null packageName");
11417        }
11418
11419        PackageStats stats = new PackageStats(packageName, userHandle);
11420
11421        /*
11422         * Queue up an async operation since the package measurement may take a
11423         * little while.
11424         */
11425        Message msg = mHandler.obtainMessage(INIT_COPY);
11426        msg.obj = new MeasureParams(stats, observer);
11427        mHandler.sendMessage(msg);
11428    }
11429
11430    private boolean getPackageSizeInfoLI(String packageName, int userHandle,
11431            PackageStats pStats) {
11432        if (packageName == null) {
11433            Slog.w(TAG, "Attempt to get size of null packageName.");
11434            return false;
11435        }
11436        PackageParser.Package p;
11437        boolean dataOnly = false;
11438        String libDirRoot = null;
11439        String asecPath = null;
11440        PackageSetting ps = null;
11441        synchronized (mPackages) {
11442            p = mPackages.get(packageName);
11443            ps = mSettings.mPackages.get(packageName);
11444            if(p == null) {
11445                dataOnly = true;
11446                if((ps == null) || (ps.pkg == null)) {
11447                    Slog.w(TAG, "Package named '" + packageName +"' doesn't exist.");
11448                    return false;
11449                }
11450                p = ps.pkg;
11451            }
11452            if (ps != null) {
11453                libDirRoot = ps.legacyNativeLibraryPathString;
11454            }
11455            if (p != null && (isExternal(p) || isForwardLocked(p))) {
11456                String secureContainerId = cidFromCodePath(p.applicationInfo.getBaseCodePath());
11457                if (secureContainerId != null) {
11458                    asecPath = PackageHelper.getSdFilesystem(secureContainerId);
11459                }
11460            }
11461        }
11462        String publicSrcDir = null;
11463        if(!dataOnly) {
11464            final ApplicationInfo applicationInfo = p.applicationInfo;
11465            if (applicationInfo == null) {
11466                Slog.w(TAG, "Package " + packageName + " has no applicationInfo.");
11467                return false;
11468            }
11469            if (isForwardLocked(p)) {
11470                publicSrcDir = applicationInfo.getBaseResourcePath();
11471            }
11472        }
11473        // TODO: extend to measure size of split APKs
11474        // TODO(multiArch): Extend getSizeInfo to look at the full subdirectory tree,
11475        // not just the first level.
11476        // TODO(multiArch): Extend getSizeInfo to look at *all* instruction sets, not
11477        // just the primary.
11478        String[] dexCodeInstructionSets = getDexCodeInstructionSets(getAppDexInstructionSets(ps));
11479        int res = mInstaller.getSizeInfo(packageName, userHandle, p.baseCodePath, libDirRoot,
11480                publicSrcDir, asecPath, dexCodeInstructionSets, pStats);
11481        if (res < 0) {
11482            return false;
11483        }
11484
11485        // Fix-up for forward-locked applications in ASEC containers.
11486        if (!isExternal(p)) {
11487            pStats.codeSize += pStats.externalCodeSize;
11488            pStats.externalCodeSize = 0L;
11489        }
11490
11491        return true;
11492    }
11493
11494
11495    @Override
11496    public void addPackageToPreferred(String packageName) {
11497        Slog.w(TAG, "addPackageToPreferred: this is now a no-op");
11498    }
11499
11500    @Override
11501    public void removePackageFromPreferred(String packageName) {
11502        Slog.w(TAG, "removePackageFromPreferred: this is now a no-op");
11503    }
11504
11505    @Override
11506    public List<PackageInfo> getPreferredPackages(int flags) {
11507        return new ArrayList<PackageInfo>();
11508    }
11509
11510    private int getUidTargetSdkVersionLockedLPr(int uid) {
11511        Object obj = mSettings.getUserIdLPr(uid);
11512        if (obj instanceof SharedUserSetting) {
11513            final SharedUserSetting sus = (SharedUserSetting) obj;
11514            int vers = Build.VERSION_CODES.CUR_DEVELOPMENT;
11515            final Iterator<PackageSetting> it = sus.packages.iterator();
11516            while (it.hasNext()) {
11517                final PackageSetting ps = it.next();
11518                if (ps.pkg != null) {
11519                    int v = ps.pkg.applicationInfo.targetSdkVersion;
11520                    if (v < vers) vers = v;
11521                }
11522            }
11523            return vers;
11524        } else if (obj instanceof PackageSetting) {
11525            final PackageSetting ps = (PackageSetting) obj;
11526            if (ps.pkg != null) {
11527                return ps.pkg.applicationInfo.targetSdkVersion;
11528            }
11529        }
11530        return Build.VERSION_CODES.CUR_DEVELOPMENT;
11531    }
11532
11533    @Override
11534    public void addPreferredActivity(IntentFilter filter, int match,
11535            ComponentName[] set, ComponentName activity, int userId) {
11536        addPreferredActivityInternal(filter, match, set, activity, true, userId,
11537                "Adding preferred");
11538    }
11539
11540    private void addPreferredActivityInternal(IntentFilter filter, int match,
11541            ComponentName[] set, ComponentName activity, boolean always, int userId,
11542            String opname) {
11543        // writer
11544        int callingUid = Binder.getCallingUid();
11545        enforceCrossUserPermission(callingUid, userId, true, false, "add preferred activity");
11546        if (filter.countActions() == 0) {
11547            Slog.w(TAG, "Cannot set a preferred activity with no filter actions");
11548            return;
11549        }
11550        synchronized (mPackages) {
11551            if (mContext.checkCallingOrSelfPermission(
11552                    android.Manifest.permission.SET_PREFERRED_APPLICATIONS)
11553                    != PackageManager.PERMISSION_GRANTED) {
11554                if (getUidTargetSdkVersionLockedLPr(callingUid)
11555                        < Build.VERSION_CODES.FROYO) {
11556                    Slog.w(TAG, "Ignoring addPreferredActivity() from uid "
11557                            + callingUid);
11558                    return;
11559                }
11560                mContext.enforceCallingOrSelfPermission(
11561                        android.Manifest.permission.SET_PREFERRED_APPLICATIONS, null);
11562            }
11563
11564            PreferredIntentResolver pir = mSettings.editPreferredActivitiesLPw(userId);
11565            Slog.i(TAG, opname + " activity " + activity.flattenToShortString() + " for user "
11566                    + userId + ":");
11567            filter.dump(new LogPrinter(Log.INFO, TAG), "  ");
11568            pir.addFilter(new PreferredActivity(filter, match, set, activity, always));
11569            mSettings.writePackageRestrictionsLPr(userId);
11570        }
11571    }
11572
11573    @Override
11574    public void replacePreferredActivity(IntentFilter filter, int match,
11575            ComponentName[] set, ComponentName activity, int userId) {
11576        if (filter.countActions() != 1) {
11577            throw new IllegalArgumentException(
11578                    "replacePreferredActivity expects filter to have only 1 action.");
11579        }
11580        if (filter.countDataAuthorities() != 0
11581                || filter.countDataPaths() != 0
11582                || filter.countDataSchemes() > 1
11583                || filter.countDataTypes() != 0) {
11584            throw new IllegalArgumentException(
11585                    "replacePreferredActivity expects filter to have no data authorities, " +
11586                    "paths, or types; and at most one scheme.");
11587        }
11588
11589        final int callingUid = Binder.getCallingUid();
11590        enforceCrossUserPermission(callingUid, userId, true, false, "replace preferred activity");
11591        synchronized (mPackages) {
11592            if (mContext.checkCallingOrSelfPermission(
11593                    android.Manifest.permission.SET_PREFERRED_APPLICATIONS)
11594                    != PackageManager.PERMISSION_GRANTED) {
11595                if (getUidTargetSdkVersionLockedLPr(callingUid)
11596                        < Build.VERSION_CODES.FROYO) {
11597                    Slog.w(TAG, "Ignoring replacePreferredActivity() from uid "
11598                            + Binder.getCallingUid());
11599                    return;
11600                }
11601                mContext.enforceCallingOrSelfPermission(
11602                        android.Manifest.permission.SET_PREFERRED_APPLICATIONS, null);
11603            }
11604
11605            PreferredIntentResolver pir = mSettings.mPreferredActivities.get(userId);
11606            if (pir != null) {
11607                // Get all of the existing entries that exactly match this filter.
11608                ArrayList<PreferredActivity> existing = pir.findFilters(filter);
11609                if (existing != null && existing.size() == 1) {
11610                    PreferredActivity cur = existing.get(0);
11611                    if (DEBUG_PREFERRED) {
11612                        Slog.i(TAG, "Checking replace of preferred:");
11613                        filter.dump(new LogPrinter(Log.INFO, TAG), "  ");
11614                        if (!cur.mPref.mAlways) {
11615                            Slog.i(TAG, "  -- CUR; not mAlways!");
11616                        } else {
11617                            Slog.i(TAG, "  -- CUR: mMatch=" + cur.mPref.mMatch);
11618                            Slog.i(TAG, "  -- CUR: mSet="
11619                                    + Arrays.toString(cur.mPref.mSetComponents));
11620                            Slog.i(TAG, "  -- CUR: mComponent=" + cur.mPref.mShortComponent);
11621                            Slog.i(TAG, "  -- NEW: mMatch="
11622                                    + (match&IntentFilter.MATCH_CATEGORY_MASK));
11623                            Slog.i(TAG, "  -- CUR: mSet=" + Arrays.toString(set));
11624                            Slog.i(TAG, "  -- CUR: mComponent=" + activity.flattenToShortString());
11625                        }
11626                    }
11627                    if (cur.mPref.mAlways && cur.mPref.mComponent.equals(activity)
11628                            && cur.mPref.mMatch == (match&IntentFilter.MATCH_CATEGORY_MASK)
11629                            && cur.mPref.sameSet(set)) {
11630                        // Setting the preferred activity to what it happens to be already
11631                        if (DEBUG_PREFERRED) {
11632                            Slog.i(TAG, "Replacing with same preferred activity "
11633                                    + cur.mPref.mShortComponent + " for user "
11634                                    + userId + ":");
11635                            filter.dump(new LogPrinter(Log.INFO, TAG), "  ");
11636                        }
11637                        return;
11638                    }
11639                }
11640
11641                if (existing != null) {
11642                    if (DEBUG_PREFERRED) {
11643                        Slog.i(TAG, existing.size() + " existing preferred matches for:");
11644                        filter.dump(new LogPrinter(Log.INFO, TAG), "  ");
11645                    }
11646                    for (int i = 0; i < existing.size(); i++) {
11647                        PreferredActivity pa = existing.get(i);
11648                        if (DEBUG_PREFERRED) {
11649                            Slog.i(TAG, "Removing existing preferred activity "
11650                                    + pa.mPref.mComponent + ":");
11651                            pa.dump(new LogPrinter(Log.INFO, TAG), "  ");
11652                        }
11653                        pir.removeFilter(pa);
11654                    }
11655                }
11656            }
11657            addPreferredActivityInternal(filter, match, set, activity, true, userId,
11658                    "Replacing preferred");
11659        }
11660    }
11661
11662    @Override
11663    public void clearPackagePreferredActivities(String packageName) {
11664        final int uid = Binder.getCallingUid();
11665        // writer
11666        synchronized (mPackages) {
11667            PackageParser.Package pkg = mPackages.get(packageName);
11668            if (pkg == null || pkg.applicationInfo.uid != uid) {
11669                if (mContext.checkCallingOrSelfPermission(
11670                        android.Manifest.permission.SET_PREFERRED_APPLICATIONS)
11671                        != PackageManager.PERMISSION_GRANTED) {
11672                    if (getUidTargetSdkVersionLockedLPr(Binder.getCallingUid())
11673                            < Build.VERSION_CODES.FROYO) {
11674                        Slog.w(TAG, "Ignoring clearPackagePreferredActivities() from uid "
11675                                + Binder.getCallingUid());
11676                        return;
11677                    }
11678                    mContext.enforceCallingOrSelfPermission(
11679                            android.Manifest.permission.SET_PREFERRED_APPLICATIONS, null);
11680                }
11681            }
11682
11683            int user = UserHandle.getCallingUserId();
11684            if (clearPackagePreferredActivitiesLPw(packageName, user)) {
11685                mSettings.writePackageRestrictionsLPr(user);
11686                scheduleWriteSettingsLocked();
11687            }
11688        }
11689    }
11690
11691    /** This method takes a specific user id as well as UserHandle.USER_ALL. */
11692    boolean clearPackagePreferredActivitiesLPw(String packageName, int userId) {
11693        ArrayList<PreferredActivity> removed = null;
11694        boolean changed = false;
11695        for (int i=0; i<mSettings.mPreferredActivities.size(); i++) {
11696            final int thisUserId = mSettings.mPreferredActivities.keyAt(i);
11697            PreferredIntentResolver pir = mSettings.mPreferredActivities.valueAt(i);
11698            if (userId != UserHandle.USER_ALL && userId != thisUserId) {
11699                continue;
11700            }
11701            Iterator<PreferredActivity> it = pir.filterIterator();
11702            while (it.hasNext()) {
11703                PreferredActivity pa = it.next();
11704                // Mark entry for removal only if it matches the package name
11705                // and the entry is of type "always".
11706                if (packageName == null ||
11707                        (pa.mPref.mComponent.getPackageName().equals(packageName)
11708                                && pa.mPref.mAlways)) {
11709                    if (removed == null) {
11710                        removed = new ArrayList<PreferredActivity>();
11711                    }
11712                    removed.add(pa);
11713                }
11714            }
11715            if (removed != null) {
11716                for (int j=0; j<removed.size(); j++) {
11717                    PreferredActivity pa = removed.get(j);
11718                    pir.removeFilter(pa);
11719                }
11720                changed = true;
11721            }
11722        }
11723        return changed;
11724    }
11725
11726    @Override
11727    public void resetPreferredActivities(int userId) {
11728        /* TODO: Actually use userId. Why is it being passed in? */
11729        mContext.enforceCallingOrSelfPermission(
11730                android.Manifest.permission.SET_PREFERRED_APPLICATIONS, null);
11731        // writer
11732        synchronized (mPackages) {
11733            int user = UserHandle.getCallingUserId();
11734            clearPackagePreferredActivitiesLPw(null, user);
11735            mSettings.readDefaultPreferredAppsLPw(this, user);
11736            mSettings.writePackageRestrictionsLPr(user);
11737            scheduleWriteSettingsLocked();
11738        }
11739    }
11740
11741    @Override
11742    public int getPreferredActivities(List<IntentFilter> outFilters,
11743            List<ComponentName> outActivities, String packageName) {
11744
11745        int num = 0;
11746        final int userId = UserHandle.getCallingUserId();
11747        // reader
11748        synchronized (mPackages) {
11749            PreferredIntentResolver pir = mSettings.mPreferredActivities.get(userId);
11750            if (pir != null) {
11751                final Iterator<PreferredActivity> it = pir.filterIterator();
11752                while (it.hasNext()) {
11753                    final PreferredActivity pa = it.next();
11754                    if (packageName == null
11755                            || (pa.mPref.mComponent.getPackageName().equals(packageName)
11756                                    && pa.mPref.mAlways)) {
11757                        if (outFilters != null) {
11758                            outFilters.add(new IntentFilter(pa));
11759                        }
11760                        if (outActivities != null) {
11761                            outActivities.add(pa.mPref.mComponent);
11762                        }
11763                    }
11764                }
11765            }
11766        }
11767
11768        return num;
11769    }
11770
11771    @Override
11772    public void addPersistentPreferredActivity(IntentFilter filter, ComponentName activity,
11773            int userId) {
11774        int callingUid = Binder.getCallingUid();
11775        if (callingUid != Process.SYSTEM_UID) {
11776            throw new SecurityException(
11777                    "addPersistentPreferredActivity can only be run by the system");
11778        }
11779        if (filter.countActions() == 0) {
11780            Slog.w(TAG, "Cannot set a preferred activity with no filter actions");
11781            return;
11782        }
11783        synchronized (mPackages) {
11784            Slog.i(TAG, "Adding persistent preferred activity " + activity + " for user " + userId +
11785                    " :");
11786            filter.dump(new LogPrinter(Log.INFO, TAG), "  ");
11787            mSettings.editPersistentPreferredActivitiesLPw(userId).addFilter(
11788                    new PersistentPreferredActivity(filter, activity));
11789            mSettings.writePackageRestrictionsLPr(userId);
11790        }
11791    }
11792
11793    @Override
11794    public void clearPackagePersistentPreferredActivities(String packageName, int userId) {
11795        int callingUid = Binder.getCallingUid();
11796        if (callingUid != Process.SYSTEM_UID) {
11797            throw new SecurityException(
11798                    "clearPackagePersistentPreferredActivities can only be run by the system");
11799        }
11800        ArrayList<PersistentPreferredActivity> removed = null;
11801        boolean changed = false;
11802        synchronized (mPackages) {
11803            for (int i=0; i<mSettings.mPersistentPreferredActivities.size(); i++) {
11804                final int thisUserId = mSettings.mPersistentPreferredActivities.keyAt(i);
11805                PersistentPreferredIntentResolver ppir = mSettings.mPersistentPreferredActivities
11806                        .valueAt(i);
11807                if (userId != thisUserId) {
11808                    continue;
11809                }
11810                Iterator<PersistentPreferredActivity> it = ppir.filterIterator();
11811                while (it.hasNext()) {
11812                    PersistentPreferredActivity ppa = it.next();
11813                    // Mark entry for removal only if it matches the package name.
11814                    if (ppa.mComponent.getPackageName().equals(packageName)) {
11815                        if (removed == null) {
11816                            removed = new ArrayList<PersistentPreferredActivity>();
11817                        }
11818                        removed.add(ppa);
11819                    }
11820                }
11821                if (removed != null) {
11822                    for (int j=0; j<removed.size(); j++) {
11823                        PersistentPreferredActivity ppa = removed.get(j);
11824                        ppir.removeFilter(ppa);
11825                    }
11826                    changed = true;
11827                }
11828            }
11829
11830            if (changed) {
11831                mSettings.writePackageRestrictionsLPr(userId);
11832            }
11833        }
11834    }
11835
11836    @Override
11837    public void addCrossProfileIntentFilter(IntentFilter intentFilter, String ownerPackage,
11838            int ownerUserId, int sourceUserId, int targetUserId, int flags) {
11839        mContext.enforceCallingOrSelfPermission(
11840                        android.Manifest.permission.INTERACT_ACROSS_USERS_FULL, null);
11841        int callingUid = Binder.getCallingUid();
11842        enforceOwnerRights(ownerPackage, ownerUserId, callingUid);
11843        enforceShellRestriction(UserManager.DISALLOW_DEBUGGING_FEATURES, callingUid, sourceUserId);
11844        if (intentFilter.countActions() == 0) {
11845            Slog.w(TAG, "Cannot set a crossProfile intent filter with no filter actions");
11846            return;
11847        }
11848        synchronized (mPackages) {
11849            CrossProfileIntentFilter filter = new CrossProfileIntentFilter(intentFilter,
11850                    ownerPackage, UserHandle.getUserId(callingUid), targetUserId, flags);
11851            mSettings.editCrossProfileIntentResolverLPw(sourceUserId).addFilter(filter);
11852            mSettings.writePackageRestrictionsLPr(sourceUserId);
11853        }
11854    }
11855
11856    @Override
11857    public void clearCrossProfileIntentFilters(int sourceUserId, String ownerPackage,
11858            int ownerUserId) {
11859        mContext.enforceCallingOrSelfPermission(
11860                        android.Manifest.permission.INTERACT_ACROSS_USERS_FULL, null);
11861        int callingUid = Binder.getCallingUid();
11862        enforceOwnerRights(ownerPackage, ownerUserId, callingUid);
11863        enforceShellRestriction(UserManager.DISALLOW_DEBUGGING_FEATURES, callingUid, sourceUserId);
11864        int callingUserId = UserHandle.getUserId(callingUid);
11865        synchronized (mPackages) {
11866            CrossProfileIntentResolver resolver =
11867                    mSettings.editCrossProfileIntentResolverLPw(sourceUserId);
11868            ArraySet<CrossProfileIntentFilter> set =
11869                    new ArraySet<CrossProfileIntentFilter>(resolver.filterSet());
11870            for (CrossProfileIntentFilter filter : set) {
11871                if (filter.getOwnerPackage().equals(ownerPackage)
11872                        && filter.getOwnerUserId() == callingUserId) {
11873                    resolver.removeFilter(filter);
11874                }
11875            }
11876            mSettings.writePackageRestrictionsLPr(sourceUserId);
11877        }
11878    }
11879
11880    // Enforcing that callingUid is owning pkg on userId
11881    private void enforceOwnerRights(String pkg, int userId, int callingUid) {
11882        // The system owns everything.
11883        if (UserHandle.getAppId(callingUid) == Process.SYSTEM_UID) {
11884            return;
11885        }
11886        int callingUserId = UserHandle.getUserId(callingUid);
11887        if (callingUserId != userId) {
11888            throw new SecurityException("calling uid " + callingUid
11889                    + " pretends to own " + pkg + " on user " + userId + " but belongs to user "
11890                    + callingUserId);
11891        }
11892        PackageInfo pi = getPackageInfo(pkg, 0, callingUserId);
11893        if (pi == null) {
11894            throw new IllegalArgumentException("Unknown package " + pkg + " on user "
11895                    + callingUserId);
11896        }
11897        if (!UserHandle.isSameApp(pi.applicationInfo.uid, callingUid)) {
11898            throw new SecurityException("Calling uid " + callingUid
11899                    + " does not own package " + pkg);
11900        }
11901    }
11902
11903    @Override
11904    public ComponentName getHomeActivities(List<ResolveInfo> allHomeCandidates) {
11905        Intent intent = new Intent(Intent.ACTION_MAIN);
11906        intent.addCategory(Intent.CATEGORY_HOME);
11907
11908        final int callingUserId = UserHandle.getCallingUserId();
11909        List<ResolveInfo> list = queryIntentActivities(intent, null,
11910                PackageManager.GET_META_DATA, callingUserId);
11911        ResolveInfo preferred = findPreferredActivity(intent, null, 0, list, 0,
11912                true, false, false, callingUserId);
11913
11914        allHomeCandidates.clear();
11915        if (list != null) {
11916            for (ResolveInfo ri : list) {
11917                allHomeCandidates.add(ri);
11918            }
11919        }
11920        return (preferred == null || preferred.activityInfo == null)
11921                ? null
11922                : new ComponentName(preferred.activityInfo.packageName,
11923                        preferred.activityInfo.name);
11924    }
11925
11926    @Override
11927    public void setApplicationEnabledSetting(String appPackageName,
11928            int newState, int flags, int userId, String callingPackage) {
11929        if (!sUserManager.exists(userId)) return;
11930        if (callingPackage == null) {
11931            callingPackage = Integer.toString(Binder.getCallingUid());
11932        }
11933        setEnabledSetting(appPackageName, null, newState, flags, userId, callingPackage);
11934    }
11935
11936    @Override
11937    public void setComponentEnabledSetting(ComponentName componentName,
11938            int newState, int flags, int userId) {
11939        if (!sUserManager.exists(userId)) return;
11940        setEnabledSetting(componentName.getPackageName(),
11941                componentName.getClassName(), newState, flags, userId, null);
11942    }
11943
11944    private void setEnabledSetting(final String packageName, String className, int newState,
11945            final int flags, int userId, String callingPackage) {
11946        if (!(newState == COMPONENT_ENABLED_STATE_DEFAULT
11947              || newState == COMPONENT_ENABLED_STATE_ENABLED
11948              || newState == COMPONENT_ENABLED_STATE_DISABLED
11949              || newState == COMPONENT_ENABLED_STATE_DISABLED_USER
11950              || newState == COMPONENT_ENABLED_STATE_DISABLED_UNTIL_USED)) {
11951            throw new IllegalArgumentException("Invalid new component state: "
11952                    + newState);
11953        }
11954        PackageSetting pkgSetting;
11955        final int uid = Binder.getCallingUid();
11956        final int permission = mContext.checkCallingOrSelfPermission(
11957                android.Manifest.permission.CHANGE_COMPONENT_ENABLED_STATE);
11958        enforceCrossUserPermission(uid, userId, false, true, "set enabled");
11959        final boolean allowedByPermission = (permission == PackageManager.PERMISSION_GRANTED);
11960        boolean sendNow = false;
11961        boolean isApp = (className == null);
11962        String componentName = isApp ? packageName : className;
11963        int packageUid = -1;
11964        ArrayList<String> components;
11965
11966        // writer
11967        synchronized (mPackages) {
11968            pkgSetting = mSettings.mPackages.get(packageName);
11969            if (pkgSetting == null) {
11970                if (className == null) {
11971                    throw new IllegalArgumentException(
11972                            "Unknown package: " + packageName);
11973                }
11974                throw new IllegalArgumentException(
11975                        "Unknown component: " + packageName
11976                        + "/" + className);
11977            }
11978            // Allow root and verify that userId is not being specified by a different user
11979            if (!allowedByPermission && !UserHandle.isSameApp(uid, pkgSetting.appId)) {
11980                throw new SecurityException(
11981                        "Permission Denial: attempt to change component state from pid="
11982                        + Binder.getCallingPid()
11983                        + ", uid=" + uid + ", package uid=" + pkgSetting.appId);
11984            }
11985            if (className == null) {
11986                // We're dealing with an application/package level state change
11987                if (pkgSetting.getEnabled(userId) == newState) {
11988                    // Nothing to do
11989                    return;
11990                }
11991                if (newState == PackageManager.COMPONENT_ENABLED_STATE_DEFAULT
11992                    || newState == PackageManager.COMPONENT_ENABLED_STATE_ENABLED) {
11993                    // Don't care about who enables an app.
11994                    callingPackage = null;
11995                }
11996                pkgSetting.setEnabled(newState, userId, callingPackage);
11997                // pkgSetting.pkg.mSetEnabled = newState;
11998            } else {
11999                // We're dealing with a component level state change
12000                // First, verify that this is a valid class name.
12001                PackageParser.Package pkg = pkgSetting.pkg;
12002                if (pkg == null || !pkg.hasComponentClassName(className)) {
12003                    if (pkg.applicationInfo.targetSdkVersion >= Build.VERSION_CODES.JELLY_BEAN) {
12004                        throw new IllegalArgumentException("Component class " + className
12005                                + " does not exist in " + packageName);
12006                    } else {
12007                        Slog.w(TAG, "Failed setComponentEnabledSetting: component class "
12008                                + className + " does not exist in " + packageName);
12009                    }
12010                }
12011                switch (newState) {
12012                case COMPONENT_ENABLED_STATE_ENABLED:
12013                    if (!pkgSetting.enableComponentLPw(className, userId)) {
12014                        return;
12015                    }
12016                    break;
12017                case COMPONENT_ENABLED_STATE_DISABLED:
12018                    if (!pkgSetting.disableComponentLPw(className, userId)) {
12019                        return;
12020                    }
12021                    break;
12022                case COMPONENT_ENABLED_STATE_DEFAULT:
12023                    if (!pkgSetting.restoreComponentLPw(className, userId)) {
12024                        return;
12025                    }
12026                    break;
12027                default:
12028                    Slog.e(TAG, "Invalid new component state: " + newState);
12029                    return;
12030                }
12031            }
12032            mSettings.writePackageRestrictionsLPr(userId);
12033            components = mPendingBroadcasts.get(userId, packageName);
12034            final boolean newPackage = components == null;
12035            if (newPackage) {
12036                components = new ArrayList<String>();
12037            }
12038            if (!components.contains(componentName)) {
12039                components.add(componentName);
12040            }
12041            if ((flags&PackageManager.DONT_KILL_APP) == 0) {
12042                sendNow = true;
12043                // Purge entry from pending broadcast list if another one exists already
12044                // since we are sending one right away.
12045                mPendingBroadcasts.remove(userId, packageName);
12046            } else {
12047                if (newPackage) {
12048                    mPendingBroadcasts.put(userId, packageName, components);
12049                }
12050                if (!mHandler.hasMessages(SEND_PENDING_BROADCAST)) {
12051                    // Schedule a message
12052                    mHandler.sendEmptyMessageDelayed(SEND_PENDING_BROADCAST, BROADCAST_DELAY);
12053                }
12054            }
12055        }
12056
12057        long callingId = Binder.clearCallingIdentity();
12058        try {
12059            if (sendNow) {
12060                packageUid = UserHandle.getUid(userId, pkgSetting.appId);
12061                sendPackageChangedBroadcast(packageName,
12062                        (flags&PackageManager.DONT_KILL_APP) != 0, components, packageUid);
12063            }
12064        } finally {
12065            Binder.restoreCallingIdentity(callingId);
12066        }
12067    }
12068
12069    private void sendPackageChangedBroadcast(String packageName,
12070            boolean killFlag, ArrayList<String> componentNames, int packageUid) {
12071        if (DEBUG_INSTALL)
12072            Log.v(TAG, "Sending package changed: package=" + packageName + " components="
12073                    + componentNames);
12074        Bundle extras = new Bundle(4);
12075        extras.putString(Intent.EXTRA_CHANGED_COMPONENT_NAME, componentNames.get(0));
12076        String nameList[] = new String[componentNames.size()];
12077        componentNames.toArray(nameList);
12078        extras.putStringArray(Intent.EXTRA_CHANGED_COMPONENT_NAME_LIST, nameList);
12079        extras.putBoolean(Intent.EXTRA_DONT_KILL_APP, killFlag);
12080        extras.putInt(Intent.EXTRA_UID, packageUid);
12081        sendPackageBroadcast(Intent.ACTION_PACKAGE_CHANGED,  packageName, extras, null, null,
12082                new int[] {UserHandle.getUserId(packageUid)});
12083    }
12084
12085    @Override
12086    public void setPackageStoppedState(String packageName, boolean stopped, int userId) {
12087        if (!sUserManager.exists(userId)) return;
12088        final int uid = Binder.getCallingUid();
12089        final int permission = mContext.checkCallingOrSelfPermission(
12090                android.Manifest.permission.CHANGE_COMPONENT_ENABLED_STATE);
12091        final boolean allowedByPermission = (permission == PackageManager.PERMISSION_GRANTED);
12092        enforceCrossUserPermission(uid, userId, true, true, "stop package");
12093        // writer
12094        synchronized (mPackages) {
12095            if (mSettings.setPackageStoppedStateLPw(packageName, stopped, allowedByPermission,
12096                    uid, userId)) {
12097                scheduleWritePackageRestrictionsLocked(userId);
12098            }
12099        }
12100    }
12101
12102    @Override
12103    public String getInstallerPackageName(String packageName) {
12104        // reader
12105        synchronized (mPackages) {
12106            return mSettings.getInstallerPackageNameLPr(packageName);
12107        }
12108    }
12109
12110    @Override
12111    public int getApplicationEnabledSetting(String packageName, int userId) {
12112        if (!sUserManager.exists(userId)) return COMPONENT_ENABLED_STATE_DISABLED;
12113        int uid = Binder.getCallingUid();
12114        enforceCrossUserPermission(uid, userId, false, false, "get enabled");
12115        // reader
12116        synchronized (mPackages) {
12117            return mSettings.getApplicationEnabledSettingLPr(packageName, userId);
12118        }
12119    }
12120
12121    @Override
12122    public int getComponentEnabledSetting(ComponentName componentName, int userId) {
12123        if (!sUserManager.exists(userId)) return COMPONENT_ENABLED_STATE_DISABLED;
12124        int uid = Binder.getCallingUid();
12125        enforceCrossUserPermission(uid, userId, false, false, "get component enabled");
12126        // reader
12127        synchronized (mPackages) {
12128            return mSettings.getComponentEnabledSettingLPr(componentName, userId);
12129        }
12130    }
12131
12132    @Override
12133    public void enterSafeMode() {
12134        enforceSystemOrRoot("Only the system can request entering safe mode");
12135
12136        if (!mSystemReady) {
12137            mSafeMode = true;
12138        }
12139    }
12140
12141    @Override
12142    public void systemReady() {
12143        mSystemReady = true;
12144
12145        // Read the compatibilty setting when the system is ready.
12146        boolean compatibilityModeEnabled = android.provider.Settings.Global.getInt(
12147                mContext.getContentResolver(),
12148                android.provider.Settings.Global.COMPATIBILITY_MODE, 1) == 1;
12149        PackageParser.setCompatibilityModeEnabled(compatibilityModeEnabled);
12150        if (DEBUG_SETTINGS) {
12151            Log.d(TAG, "compatibility mode:" + compatibilityModeEnabled);
12152        }
12153
12154        synchronized (mPackages) {
12155            // Verify that all of the preferred activity components actually
12156            // exist.  It is possible for applications to be updated and at
12157            // that point remove a previously declared activity component that
12158            // had been set as a preferred activity.  We try to clean this up
12159            // the next time we encounter that preferred activity, but it is
12160            // possible for the user flow to never be able to return to that
12161            // situation so here we do a sanity check to make sure we haven't
12162            // left any junk around.
12163            ArrayList<PreferredActivity> removed = new ArrayList<PreferredActivity>();
12164            for (int i=0; i<mSettings.mPreferredActivities.size(); i++) {
12165                PreferredIntentResolver pir = mSettings.mPreferredActivities.valueAt(i);
12166                removed.clear();
12167                for (PreferredActivity pa : pir.filterSet()) {
12168                    if (mActivities.mActivities.get(pa.mPref.mComponent) == null) {
12169                        removed.add(pa);
12170                    }
12171                }
12172                if (removed.size() > 0) {
12173                    for (int r=0; r<removed.size(); r++) {
12174                        PreferredActivity pa = removed.get(r);
12175                        Slog.w(TAG, "Removing dangling preferred activity: "
12176                                + pa.mPref.mComponent);
12177                        pir.removeFilter(pa);
12178                    }
12179                    mSettings.writePackageRestrictionsLPr(
12180                            mSettings.mPreferredActivities.keyAt(i));
12181                }
12182            }
12183        }
12184        sUserManager.systemReady();
12185
12186        // Kick off any messages waiting for system ready
12187        if (mPostSystemReadyMessages != null) {
12188            for (Message msg : mPostSystemReadyMessages) {
12189                msg.sendToTarget();
12190            }
12191            mPostSystemReadyMessages = null;
12192        }
12193    }
12194
12195    @Override
12196    public boolean isSafeMode() {
12197        return mSafeMode;
12198    }
12199
12200    @Override
12201    public boolean hasSystemUidErrors() {
12202        return mHasSystemUidErrors;
12203    }
12204
12205    static String arrayToString(int[] array) {
12206        StringBuffer buf = new StringBuffer(128);
12207        buf.append('[');
12208        if (array != null) {
12209            for (int i=0; i<array.length; i++) {
12210                if (i > 0) buf.append(", ");
12211                buf.append(array[i]);
12212            }
12213        }
12214        buf.append(']');
12215        return buf.toString();
12216    }
12217
12218    static class DumpState {
12219        public static final int DUMP_LIBS = 1 << 0;
12220        public static final int DUMP_FEATURES = 1 << 1;
12221        public static final int DUMP_RESOLVERS = 1 << 2;
12222        public static final int DUMP_PERMISSIONS = 1 << 3;
12223        public static final int DUMP_PACKAGES = 1 << 4;
12224        public static final int DUMP_SHARED_USERS = 1 << 5;
12225        public static final int DUMP_MESSAGES = 1 << 6;
12226        public static final int DUMP_PROVIDERS = 1 << 7;
12227        public static final int DUMP_VERIFIERS = 1 << 8;
12228        public static final int DUMP_PREFERRED = 1 << 9;
12229        public static final int DUMP_PREFERRED_XML = 1 << 10;
12230        public static final int DUMP_KEYSETS = 1 << 11;
12231        public static final int DUMP_VERSION = 1 << 12;
12232        public static final int DUMP_INSTALLS = 1 << 13;
12233
12234        public static final int OPTION_SHOW_FILTERS = 1 << 0;
12235
12236        private int mTypes;
12237
12238        private int mOptions;
12239
12240        private boolean mTitlePrinted;
12241
12242        private SharedUserSetting mSharedUser;
12243
12244        public boolean isDumping(int type) {
12245            if (mTypes == 0 && type != DUMP_PREFERRED_XML) {
12246                return true;
12247            }
12248
12249            return (mTypes & type) != 0;
12250        }
12251
12252        public void setDump(int type) {
12253            mTypes |= type;
12254        }
12255
12256        public boolean isOptionEnabled(int option) {
12257            return (mOptions & option) != 0;
12258        }
12259
12260        public void setOptionEnabled(int option) {
12261            mOptions |= option;
12262        }
12263
12264        public boolean onTitlePrinted() {
12265            final boolean printed = mTitlePrinted;
12266            mTitlePrinted = true;
12267            return printed;
12268        }
12269
12270        public boolean getTitlePrinted() {
12271            return mTitlePrinted;
12272        }
12273
12274        public void setTitlePrinted(boolean enabled) {
12275            mTitlePrinted = enabled;
12276        }
12277
12278        public SharedUserSetting getSharedUser() {
12279            return mSharedUser;
12280        }
12281
12282        public void setSharedUser(SharedUserSetting user) {
12283            mSharedUser = user;
12284        }
12285    }
12286
12287    @Override
12288    protected void dump(FileDescriptor fd, PrintWriter pw, String[] args) {
12289        if (mContext.checkCallingOrSelfPermission(android.Manifest.permission.DUMP)
12290                != PackageManager.PERMISSION_GRANTED) {
12291            pw.println("Permission Denial: can't dump ActivityManager from from pid="
12292                    + Binder.getCallingPid()
12293                    + ", uid=" + Binder.getCallingUid()
12294                    + " without permission "
12295                    + android.Manifest.permission.DUMP);
12296            return;
12297        }
12298
12299        DumpState dumpState = new DumpState();
12300        boolean fullPreferred = false;
12301        boolean checkin = false;
12302
12303        String packageName = null;
12304
12305        int opti = 0;
12306        while (opti < args.length) {
12307            String opt = args[opti];
12308            if (opt == null || opt.length() <= 0 || opt.charAt(0) != '-') {
12309                break;
12310            }
12311            opti++;
12312
12313            if ("-a".equals(opt)) {
12314                // Right now we only know how to print all.
12315            } else if ("-h".equals(opt)) {
12316                pw.println("Package manager dump options:");
12317                pw.println("  [-h] [-f] [--checkin] [cmd] ...");
12318                pw.println("    --checkin: dump for a checkin");
12319                pw.println("    -f: print details of intent filters");
12320                pw.println("    -h: print this help");
12321                pw.println("  cmd may be one of:");
12322                pw.println("    l[ibraries]: list known shared libraries");
12323                pw.println("    f[ibraries]: list device features");
12324                pw.println("    k[eysets]: print known keysets");
12325                pw.println("    r[esolvers]: dump intent resolvers");
12326                pw.println("    perm[issions]: dump permissions");
12327                pw.println("    pref[erred]: print preferred package settings");
12328                pw.println("    preferred-xml [--full]: print preferred package settings as xml");
12329                pw.println("    prov[iders]: dump content providers");
12330                pw.println("    p[ackages]: dump installed packages");
12331                pw.println("    s[hared-users]: dump shared user IDs");
12332                pw.println("    m[essages]: print collected runtime messages");
12333                pw.println("    v[erifiers]: print package verifier info");
12334                pw.println("    version: print database version info");
12335                pw.println("    write: write current settings now");
12336                pw.println("    <package.name>: info about given package");
12337                pw.println("    installs: details about install sessions");
12338                return;
12339            } else if ("--checkin".equals(opt)) {
12340                checkin = true;
12341            } else if ("-f".equals(opt)) {
12342                dumpState.setOptionEnabled(DumpState.OPTION_SHOW_FILTERS);
12343            } else {
12344                pw.println("Unknown argument: " + opt + "; use -h for help");
12345            }
12346        }
12347
12348        // Is the caller requesting to dump a particular piece of data?
12349        if (opti < args.length) {
12350            String cmd = args[opti];
12351            opti++;
12352            // Is this a package name?
12353            if ("android".equals(cmd) || cmd.contains(".")) {
12354                packageName = cmd;
12355                // When dumping a single package, we always dump all of its
12356                // filter information since the amount of data will be reasonable.
12357                dumpState.setOptionEnabled(DumpState.OPTION_SHOW_FILTERS);
12358            } else if ("l".equals(cmd) || "libraries".equals(cmd)) {
12359                dumpState.setDump(DumpState.DUMP_LIBS);
12360            } else if ("f".equals(cmd) || "features".equals(cmd)) {
12361                dumpState.setDump(DumpState.DUMP_FEATURES);
12362            } else if ("r".equals(cmd) || "resolvers".equals(cmd)) {
12363                dumpState.setDump(DumpState.DUMP_RESOLVERS);
12364            } else if ("perm".equals(cmd) || "permissions".equals(cmd)) {
12365                dumpState.setDump(DumpState.DUMP_PERMISSIONS);
12366            } else if ("pref".equals(cmd) || "preferred".equals(cmd)) {
12367                dumpState.setDump(DumpState.DUMP_PREFERRED);
12368            } else if ("preferred-xml".equals(cmd)) {
12369                dumpState.setDump(DumpState.DUMP_PREFERRED_XML);
12370                if (opti < args.length && "--full".equals(args[opti])) {
12371                    fullPreferred = true;
12372                    opti++;
12373                }
12374            } else if ("p".equals(cmd) || "packages".equals(cmd)) {
12375                dumpState.setDump(DumpState.DUMP_PACKAGES);
12376            } else if ("s".equals(cmd) || "shared-users".equals(cmd)) {
12377                dumpState.setDump(DumpState.DUMP_SHARED_USERS);
12378            } else if ("prov".equals(cmd) || "providers".equals(cmd)) {
12379                dumpState.setDump(DumpState.DUMP_PROVIDERS);
12380            } else if ("m".equals(cmd) || "messages".equals(cmd)) {
12381                dumpState.setDump(DumpState.DUMP_MESSAGES);
12382            } else if ("v".equals(cmd) || "verifiers".equals(cmd)) {
12383                dumpState.setDump(DumpState.DUMP_VERIFIERS);
12384            } else if ("version".equals(cmd)) {
12385                dumpState.setDump(DumpState.DUMP_VERSION);
12386            } else if ("k".equals(cmd) || "keysets".equals(cmd)) {
12387                dumpState.setDump(DumpState.DUMP_KEYSETS);
12388            } else if ("installs".equals(cmd)) {
12389                dumpState.setDump(DumpState.DUMP_INSTALLS);
12390            } else if ("write".equals(cmd)) {
12391                synchronized (mPackages) {
12392                    mSettings.writeLPr();
12393                    pw.println("Settings written.");
12394                    return;
12395                }
12396            }
12397        }
12398
12399        if (checkin) {
12400            pw.println("vers,1");
12401        }
12402
12403        // reader
12404        synchronized (mPackages) {
12405            if (dumpState.isDumping(DumpState.DUMP_VERSION) && packageName == null) {
12406                if (!checkin) {
12407                    if (dumpState.onTitlePrinted())
12408                        pw.println();
12409                    pw.println("Database versions:");
12410                    pw.print("  SDK Version:");
12411                    pw.print(" internal=");
12412                    pw.print(mSettings.mInternalSdkPlatform);
12413                    pw.print(" external=");
12414                    pw.println(mSettings.mExternalSdkPlatform);
12415                    pw.print("  DB Version:");
12416                    pw.print(" internal=");
12417                    pw.print(mSettings.mInternalDatabaseVersion);
12418                    pw.print(" external=");
12419                    pw.println(mSettings.mExternalDatabaseVersion);
12420                }
12421            }
12422
12423            if (dumpState.isDumping(DumpState.DUMP_VERIFIERS) && packageName == null) {
12424                if (!checkin) {
12425                    if (dumpState.onTitlePrinted())
12426                        pw.println();
12427                    pw.println("Verifiers:");
12428                    pw.print("  Required: ");
12429                    pw.print(mRequiredVerifierPackage);
12430                    pw.print(" (uid=");
12431                    pw.print(getPackageUid(mRequiredVerifierPackage, 0));
12432                    pw.println(")");
12433                } else if (mRequiredVerifierPackage != null) {
12434                    pw.print("vrfy,"); pw.print(mRequiredVerifierPackage);
12435                    pw.print(","); pw.println(getPackageUid(mRequiredVerifierPackage, 0));
12436                }
12437            }
12438
12439            if (dumpState.isDumping(DumpState.DUMP_LIBS) && packageName == null) {
12440                boolean printedHeader = false;
12441                final Iterator<String> it = mSharedLibraries.keySet().iterator();
12442                while (it.hasNext()) {
12443                    String name = it.next();
12444                    SharedLibraryEntry ent = mSharedLibraries.get(name);
12445                    if (!checkin) {
12446                        if (!printedHeader) {
12447                            if (dumpState.onTitlePrinted())
12448                                pw.println();
12449                            pw.println("Libraries:");
12450                            printedHeader = true;
12451                        }
12452                        pw.print("  ");
12453                    } else {
12454                        pw.print("lib,");
12455                    }
12456                    pw.print(name);
12457                    if (!checkin) {
12458                        pw.print(" -> ");
12459                    }
12460                    if (ent.path != null) {
12461                        if (!checkin) {
12462                            pw.print("(jar) ");
12463                            pw.print(ent.path);
12464                        } else {
12465                            pw.print(",jar,");
12466                            pw.print(ent.path);
12467                        }
12468                    } else {
12469                        if (!checkin) {
12470                            pw.print("(apk) ");
12471                            pw.print(ent.apk);
12472                        } else {
12473                            pw.print(",apk,");
12474                            pw.print(ent.apk);
12475                        }
12476                    }
12477                    pw.println();
12478                }
12479            }
12480
12481            if (dumpState.isDumping(DumpState.DUMP_FEATURES) && packageName == null) {
12482                if (dumpState.onTitlePrinted())
12483                    pw.println();
12484                if (!checkin) {
12485                    pw.println("Features:");
12486                }
12487                Iterator<String> it = mAvailableFeatures.keySet().iterator();
12488                while (it.hasNext()) {
12489                    String name = it.next();
12490                    if (!checkin) {
12491                        pw.print("  ");
12492                    } else {
12493                        pw.print("feat,");
12494                    }
12495                    pw.println(name);
12496                }
12497            }
12498
12499            if (!checkin && dumpState.isDumping(DumpState.DUMP_RESOLVERS)) {
12500                if (mActivities.dump(pw, dumpState.getTitlePrinted() ? "\nActivity Resolver Table:"
12501                        : "Activity Resolver Table:", "  ", packageName,
12502                        dumpState.isOptionEnabled(DumpState.OPTION_SHOW_FILTERS))) {
12503                    dumpState.setTitlePrinted(true);
12504                }
12505                if (mReceivers.dump(pw, dumpState.getTitlePrinted() ? "\nReceiver Resolver Table:"
12506                        : "Receiver Resolver Table:", "  ", packageName,
12507                        dumpState.isOptionEnabled(DumpState.OPTION_SHOW_FILTERS))) {
12508                    dumpState.setTitlePrinted(true);
12509                }
12510                if (mServices.dump(pw, dumpState.getTitlePrinted() ? "\nService Resolver Table:"
12511                        : "Service Resolver Table:", "  ", packageName,
12512                        dumpState.isOptionEnabled(DumpState.OPTION_SHOW_FILTERS))) {
12513                    dumpState.setTitlePrinted(true);
12514                }
12515                if (mProviders.dump(pw, dumpState.getTitlePrinted() ? "\nProvider Resolver Table:"
12516                        : "Provider Resolver Table:", "  ", packageName,
12517                        dumpState.isOptionEnabled(DumpState.OPTION_SHOW_FILTERS))) {
12518                    dumpState.setTitlePrinted(true);
12519                }
12520            }
12521
12522            if (!checkin && dumpState.isDumping(DumpState.DUMP_PREFERRED)) {
12523                for (int i=0; i<mSettings.mPreferredActivities.size(); i++) {
12524                    PreferredIntentResolver pir = mSettings.mPreferredActivities.valueAt(i);
12525                    int user = mSettings.mPreferredActivities.keyAt(i);
12526                    if (pir.dump(pw,
12527                            dumpState.getTitlePrinted()
12528                                ? "\nPreferred Activities User " + user + ":"
12529                                : "Preferred Activities User " + user + ":", "  ",
12530                            packageName, true)) {
12531                        dumpState.setTitlePrinted(true);
12532                    }
12533                }
12534            }
12535
12536            if (!checkin && dumpState.isDumping(DumpState.DUMP_PREFERRED_XML)) {
12537                pw.flush();
12538                FileOutputStream fout = new FileOutputStream(fd);
12539                BufferedOutputStream str = new BufferedOutputStream(fout);
12540                XmlSerializer serializer = new FastXmlSerializer();
12541                try {
12542                    serializer.setOutput(str, "utf-8");
12543                    serializer.startDocument(null, true);
12544                    serializer.setFeature(
12545                            "http://xmlpull.org/v1/doc/features.html#indent-output", true);
12546                    mSettings.writePreferredActivitiesLPr(serializer, 0, fullPreferred);
12547                    serializer.endDocument();
12548                    serializer.flush();
12549                } catch (IllegalArgumentException e) {
12550                    pw.println("Failed writing: " + e);
12551                } catch (IllegalStateException e) {
12552                    pw.println("Failed writing: " + e);
12553                } catch (IOException e) {
12554                    pw.println("Failed writing: " + e);
12555                }
12556            }
12557
12558            if (!checkin && dumpState.isDumping(DumpState.DUMP_PERMISSIONS)) {
12559                mSettings.dumpPermissionsLPr(pw, packageName, dumpState);
12560                if (packageName == null) {
12561                    for (int iperm=0; iperm<mAppOpPermissionPackages.size(); iperm++) {
12562                        if (iperm == 0) {
12563                            if (dumpState.onTitlePrinted())
12564                                pw.println();
12565                            pw.println("AppOp Permissions:");
12566                        }
12567                        pw.print("  AppOp Permission ");
12568                        pw.print(mAppOpPermissionPackages.keyAt(iperm));
12569                        pw.println(":");
12570                        ArraySet<String> pkgs = mAppOpPermissionPackages.valueAt(iperm);
12571                        for (int ipkg=0; ipkg<pkgs.size(); ipkg++) {
12572                            pw.print("    "); pw.println(pkgs.valueAt(ipkg));
12573                        }
12574                    }
12575                }
12576            }
12577
12578            if (!checkin && dumpState.isDumping(DumpState.DUMP_PROVIDERS)) {
12579                boolean printedSomething = false;
12580                for (PackageParser.Provider p : mProviders.mProviders.values()) {
12581                    if (packageName != null && !packageName.equals(p.info.packageName)) {
12582                        continue;
12583                    }
12584                    if (!printedSomething) {
12585                        if (dumpState.onTitlePrinted())
12586                            pw.println();
12587                        pw.println("Registered ContentProviders:");
12588                        printedSomething = true;
12589                    }
12590                    pw.print("  "); p.printComponentShortName(pw); pw.println(":");
12591                    pw.print("    "); pw.println(p.toString());
12592                }
12593                printedSomething = false;
12594                for (Map.Entry<String, PackageParser.Provider> entry :
12595                        mProvidersByAuthority.entrySet()) {
12596                    PackageParser.Provider p = entry.getValue();
12597                    if (packageName != null && !packageName.equals(p.info.packageName)) {
12598                        continue;
12599                    }
12600                    if (!printedSomething) {
12601                        if (dumpState.onTitlePrinted())
12602                            pw.println();
12603                        pw.println("ContentProvider Authorities:");
12604                        printedSomething = true;
12605                    }
12606                    pw.print("  ["); pw.print(entry.getKey()); pw.println("]:");
12607                    pw.print("    "); pw.println(p.toString());
12608                    if (p.info != null && p.info.applicationInfo != null) {
12609                        final String appInfo = p.info.applicationInfo.toString();
12610                        pw.print("      applicationInfo="); pw.println(appInfo);
12611                    }
12612                }
12613            }
12614
12615            if (!checkin && dumpState.isDumping(DumpState.DUMP_KEYSETS)) {
12616                mSettings.mKeySetManagerService.dumpLPr(pw, packageName, dumpState);
12617            }
12618
12619            if (dumpState.isDumping(DumpState.DUMP_PACKAGES)) {
12620                mSettings.dumpPackagesLPr(pw, packageName, dumpState, checkin);
12621            }
12622
12623            if (!checkin && dumpState.isDumping(DumpState.DUMP_SHARED_USERS)) {
12624                mSettings.dumpSharedUsersLPr(pw, packageName, dumpState);
12625            }
12626
12627            if (!checkin && dumpState.isDumping(DumpState.DUMP_INSTALLS) && packageName == null) {
12628                // XXX should handle packageName != null by dumping only install data that
12629                // the given package is involved with.
12630                if (dumpState.onTitlePrinted()) pw.println();
12631                mInstallerService.dump(new IndentingPrintWriter(pw, "  ", 120));
12632            }
12633
12634            if (!checkin && dumpState.isDumping(DumpState.DUMP_MESSAGES) && packageName == null) {
12635                if (dumpState.onTitlePrinted()) pw.println();
12636                mSettings.dumpReadMessagesLPr(pw, dumpState);
12637
12638                pw.println();
12639                pw.println("Package warning messages:");
12640                final File fname = getSettingsProblemFile();
12641                FileInputStream in = null;
12642                try {
12643                    in = new FileInputStream(fname);
12644                    final int avail = in.available();
12645                    final byte[] data = new byte[avail];
12646                    in.read(data);
12647                    pw.print(new String(data));
12648                } catch (FileNotFoundException e) {
12649                } catch (IOException e) {
12650                } finally {
12651                    if (in != null) {
12652                        try {
12653                            in.close();
12654                        } catch (IOException e) {
12655                        }
12656                    }
12657                }
12658            }
12659
12660            if (checkin && dumpState.isDumping(DumpState.DUMP_MESSAGES)) {
12661                BufferedReader in = null;
12662                String line = null;
12663                try {
12664                    in = new BufferedReader(new FileReader(getSettingsProblemFile()));
12665                    while ((line = in.readLine()) != null) {
12666                        pw.print("msg,");
12667                        pw.println(line);
12668                    }
12669                } catch (IOException ignored) {
12670                } finally {
12671                    IoUtils.closeQuietly(in);
12672                }
12673            }
12674        }
12675    }
12676
12677    // ------- apps on sdcard specific code -------
12678    static final boolean DEBUG_SD_INSTALL = false;
12679
12680    private static final String SD_ENCRYPTION_KEYSTORE_NAME = "AppsOnSD";
12681
12682    private static final String SD_ENCRYPTION_ALGORITHM = "AES";
12683
12684    private boolean mMediaMounted = false;
12685
12686    static String getEncryptKey() {
12687        try {
12688            String sdEncKey = SystemKeyStore.getInstance().retrieveKeyHexString(
12689                    SD_ENCRYPTION_KEYSTORE_NAME);
12690            if (sdEncKey == null) {
12691                sdEncKey = SystemKeyStore.getInstance().generateNewKeyHexString(128,
12692                        SD_ENCRYPTION_ALGORITHM, SD_ENCRYPTION_KEYSTORE_NAME);
12693                if (sdEncKey == null) {
12694                    Slog.e(TAG, "Failed to create encryption keys");
12695                    return null;
12696                }
12697            }
12698            return sdEncKey;
12699        } catch (NoSuchAlgorithmException nsae) {
12700            Slog.e(TAG, "Failed to create encryption keys with exception: " + nsae);
12701            return null;
12702        } catch (IOException ioe) {
12703            Slog.e(TAG, "Failed to retrieve encryption keys with exception: " + ioe);
12704            return null;
12705        }
12706    }
12707
12708    /*
12709     * Update media status on PackageManager.
12710     */
12711    @Override
12712    public void updateExternalMediaStatus(final boolean mediaStatus, final boolean reportStatus) {
12713        int callingUid = Binder.getCallingUid();
12714        if (callingUid != 0 && callingUid != Process.SYSTEM_UID) {
12715            throw new SecurityException("Media status can only be updated by the system");
12716        }
12717        // reader; this apparently protects mMediaMounted, but should probably
12718        // be a different lock in that case.
12719        synchronized (mPackages) {
12720            Log.i(TAG, "Updating external media status from "
12721                    + (mMediaMounted ? "mounted" : "unmounted") + " to "
12722                    + (mediaStatus ? "mounted" : "unmounted"));
12723            if (DEBUG_SD_INSTALL)
12724                Log.i(TAG, "updateExternalMediaStatus:: mediaStatus=" + mediaStatus
12725                        + ", mMediaMounted=" + mMediaMounted);
12726            if (mediaStatus == mMediaMounted) {
12727                final Message msg = mHandler.obtainMessage(UPDATED_MEDIA_STATUS, reportStatus ? 1
12728                        : 0, -1);
12729                mHandler.sendMessage(msg);
12730                return;
12731            }
12732            mMediaMounted = mediaStatus;
12733        }
12734        // Queue up an async operation since the package installation may take a
12735        // little while.
12736        mHandler.post(new Runnable() {
12737            public void run() {
12738                updateExternalMediaStatusInner(mediaStatus, reportStatus, true);
12739            }
12740        });
12741    }
12742
12743    /**
12744     * Called by MountService when the initial ASECs to scan are available.
12745     * Should block until all the ASEC containers are finished being scanned.
12746     */
12747    public void scanAvailableAsecs() {
12748        updateExternalMediaStatusInner(true, false, false);
12749        if (mShouldRestoreconData) {
12750            SELinuxMMAC.setRestoreconDone();
12751            mShouldRestoreconData = false;
12752        }
12753    }
12754
12755    /*
12756     * Collect information of applications on external media, map them against
12757     * existing containers and update information based on current mount status.
12758     * Please note that we always have to report status if reportStatus has been
12759     * set to true especially when unloading packages.
12760     */
12761    private void updateExternalMediaStatusInner(boolean isMounted, boolean reportStatus,
12762            boolean externalStorage) {
12763        ArrayMap<AsecInstallArgs, String> processCids = new ArrayMap<>();
12764        int[] uidArr = EmptyArray.INT;
12765
12766        final String[] list = PackageHelper.getSecureContainerList();
12767        if (ArrayUtils.isEmpty(list)) {
12768            Log.i(TAG, "No secure containers found");
12769        } else {
12770            // Process list of secure containers and categorize them
12771            // as active or stale based on their package internal state.
12772
12773            // reader
12774            synchronized (mPackages) {
12775                for (String cid : list) {
12776                    // Leave stages untouched for now; installer service owns them
12777                    if (PackageInstallerService.isStageName(cid)) continue;
12778
12779                    if (DEBUG_SD_INSTALL)
12780                        Log.i(TAG, "Processing container " + cid);
12781                    String pkgName = getAsecPackageName(cid);
12782                    if (pkgName == null) {
12783                        Slog.i(TAG, "Found stale container " + cid + " with no package name");
12784                        continue;
12785                    }
12786                    if (DEBUG_SD_INSTALL)
12787                        Log.i(TAG, "Looking for pkg : " + pkgName);
12788
12789                    final PackageSetting ps = mSettings.mPackages.get(pkgName);
12790                    if (ps == null) {
12791                        Slog.i(TAG, "Found stale container " + cid + " with no matching settings");
12792                        continue;
12793                    }
12794
12795                    /*
12796                     * Skip packages that are not external if we're unmounting
12797                     * external storage.
12798                     */
12799                    if (externalStorage && !isMounted && !isExternal(ps)) {
12800                        continue;
12801                    }
12802
12803                    final AsecInstallArgs args = new AsecInstallArgs(cid,
12804                            getAppDexInstructionSets(ps), isForwardLocked(ps));
12805                    // The package status is changed only if the code path
12806                    // matches between settings and the container id.
12807                    if (ps.codePathString != null
12808                            && ps.codePathString.startsWith(args.getCodePath())) {
12809                        if (DEBUG_SD_INSTALL) {
12810                            Log.i(TAG, "Container : " + cid + " corresponds to pkg : " + pkgName
12811                                    + " at code path: " + ps.codePathString);
12812                        }
12813
12814                        // We do have a valid package installed on sdcard
12815                        processCids.put(args, ps.codePathString);
12816                        final int uid = ps.appId;
12817                        if (uid != -1) {
12818                            uidArr = ArrayUtils.appendInt(uidArr, uid);
12819                        }
12820                    } else {
12821                        Slog.i(TAG, "Found stale container " + cid + ": expected codePath="
12822                                + ps.codePathString);
12823                    }
12824                }
12825            }
12826
12827            Arrays.sort(uidArr);
12828        }
12829
12830        // Process packages with valid entries.
12831        if (isMounted) {
12832            if (DEBUG_SD_INSTALL)
12833                Log.i(TAG, "Loading packages");
12834            loadMediaPackages(processCids, uidArr);
12835            startCleaningPackages();
12836            mInstallerService.onSecureContainersAvailable();
12837        } else {
12838            if (DEBUG_SD_INSTALL)
12839                Log.i(TAG, "Unloading packages");
12840            unloadMediaPackages(processCids, uidArr, reportStatus);
12841        }
12842    }
12843
12844    private void sendResourcesChangedBroadcast(boolean mediaStatus, boolean replacing,
12845            ArrayList<String> pkgList, int uidArr[], IIntentReceiver finishedReceiver) {
12846        int size = pkgList.size();
12847        if (size > 0) {
12848            // Send broadcasts here
12849            Bundle extras = new Bundle();
12850            extras.putStringArray(Intent.EXTRA_CHANGED_PACKAGE_LIST, pkgList
12851                    .toArray(new String[size]));
12852            if (uidArr != null) {
12853                extras.putIntArray(Intent.EXTRA_CHANGED_UID_LIST, uidArr);
12854            }
12855            if (replacing) {
12856                extras.putBoolean(Intent.EXTRA_REPLACING, replacing);
12857            }
12858            String action = mediaStatus ? Intent.ACTION_EXTERNAL_APPLICATIONS_AVAILABLE
12859                    : Intent.ACTION_EXTERNAL_APPLICATIONS_UNAVAILABLE;
12860            sendPackageBroadcast(action, null, extras, null, finishedReceiver, null);
12861        }
12862    }
12863
12864   /*
12865     * Look at potentially valid container ids from processCids If package
12866     * information doesn't match the one on record or package scanning fails,
12867     * the cid is added to list of removeCids. We currently don't delete stale
12868     * containers.
12869     */
12870    private void loadMediaPackages(ArrayMap<AsecInstallArgs, String> processCids, int[] uidArr) {
12871        ArrayList<String> pkgList = new ArrayList<String>();
12872        Set<AsecInstallArgs> keys = processCids.keySet();
12873
12874        for (AsecInstallArgs args : keys) {
12875            String codePath = processCids.get(args);
12876            if (DEBUG_SD_INSTALL)
12877                Log.i(TAG, "Loading container : " + args.cid);
12878            int retCode = PackageManager.INSTALL_FAILED_CONTAINER_ERROR;
12879            try {
12880                // Make sure there are no container errors first.
12881                if (args.doPreInstall(PackageManager.INSTALL_SUCCEEDED) != PackageManager.INSTALL_SUCCEEDED) {
12882                    Slog.e(TAG, "Failed to mount cid : " + args.cid
12883                            + " when installing from sdcard");
12884                    continue;
12885                }
12886                // Check code path here.
12887                if (codePath == null || !codePath.startsWith(args.getCodePath())) {
12888                    Slog.e(TAG, "Container " + args.cid + " cachepath " + args.getCodePath()
12889                            + " does not match one in settings " + codePath);
12890                    continue;
12891                }
12892                // Parse package
12893                int parseFlags = mDefParseFlags;
12894                if (args.isExternal()) {
12895                    parseFlags |= PackageParser.PARSE_ON_SDCARD;
12896                }
12897                if (args.isFwdLocked()) {
12898                    parseFlags |= PackageParser.PARSE_FORWARD_LOCK;
12899                }
12900
12901                synchronized (mInstallLock) {
12902                    PackageParser.Package pkg = null;
12903                    try {
12904                        pkg = scanPackageLI(new File(codePath), parseFlags, 0, 0, null);
12905                    } catch (PackageManagerException e) {
12906                        Slog.w(TAG, "Failed to scan " + codePath + ": " + e.getMessage());
12907                    }
12908                    // Scan the package
12909                    if (pkg != null) {
12910                        /*
12911                         * TODO why is the lock being held? doPostInstall is
12912                         * called in other places without the lock. This needs
12913                         * to be straightened out.
12914                         */
12915                        // writer
12916                        synchronized (mPackages) {
12917                            retCode = PackageManager.INSTALL_SUCCEEDED;
12918                            pkgList.add(pkg.packageName);
12919                            // Post process args
12920                            args.doPostInstall(PackageManager.INSTALL_SUCCEEDED,
12921                                    pkg.applicationInfo.uid);
12922                        }
12923                    } else {
12924                        Slog.i(TAG, "Failed to install pkg from  " + codePath + " from sdcard");
12925                    }
12926                }
12927
12928            } finally {
12929                if (retCode != PackageManager.INSTALL_SUCCEEDED) {
12930                    Log.w(TAG, "Container " + args.cid + " is stale, retCode=" + retCode);
12931                }
12932            }
12933        }
12934        // writer
12935        synchronized (mPackages) {
12936            // If the platform SDK has changed since the last time we booted,
12937            // we need to re-grant app permission to catch any new ones that
12938            // appear. This is really a hack, and means that apps can in some
12939            // cases get permissions that the user didn't initially explicitly
12940            // allow... it would be nice to have some better way to handle
12941            // this situation.
12942            final boolean regrantPermissions = mSettings.mExternalSdkPlatform != mSdkVersion;
12943            if (regrantPermissions)
12944                Slog.i(TAG, "Platform changed from " + mSettings.mExternalSdkPlatform + " to "
12945                        + mSdkVersion + "; regranting permissions for external storage");
12946            mSettings.mExternalSdkPlatform = mSdkVersion;
12947
12948            // Make sure group IDs have been assigned, and any permission
12949            // changes in other apps are accounted for
12950            updatePermissionsLPw(null, null, UPDATE_PERMISSIONS_ALL
12951                    | (regrantPermissions
12952                            ? (UPDATE_PERMISSIONS_REPLACE_PKG|UPDATE_PERMISSIONS_REPLACE_ALL)
12953                            : 0));
12954
12955            mSettings.updateExternalDatabaseVersion();
12956
12957            // can downgrade to reader
12958            // Persist settings
12959            mSettings.writeLPr();
12960        }
12961        // Send a broadcast to let everyone know we are done processing
12962        if (pkgList.size() > 0) {
12963            sendResourcesChangedBroadcast(true, false, pkgList, uidArr, null);
12964        }
12965    }
12966
12967   /*
12968     * Utility method to unload a list of specified containers
12969     */
12970    private void unloadAllContainers(Set<AsecInstallArgs> cidArgs) {
12971        // Just unmount all valid containers.
12972        for (AsecInstallArgs arg : cidArgs) {
12973            synchronized (mInstallLock) {
12974                arg.doPostDeleteLI(false);
12975           }
12976       }
12977   }
12978
12979    /*
12980     * Unload packages mounted on external media. This involves deleting package
12981     * data from internal structures, sending broadcasts about diabled packages,
12982     * gc'ing to free up references, unmounting all secure containers
12983     * corresponding to packages on external media, and posting a
12984     * UPDATED_MEDIA_STATUS message if status has been requested. Please note
12985     * that we always have to post this message if status has been requested no
12986     * matter what.
12987     */
12988    private void unloadMediaPackages(ArrayMap<AsecInstallArgs, String> processCids, int uidArr[],
12989            final boolean reportStatus) {
12990        if (DEBUG_SD_INSTALL)
12991            Log.i(TAG, "unloading media packages");
12992        ArrayList<String> pkgList = new ArrayList<String>();
12993        ArrayList<AsecInstallArgs> failedList = new ArrayList<AsecInstallArgs>();
12994        final Set<AsecInstallArgs> keys = processCids.keySet();
12995        for (AsecInstallArgs args : keys) {
12996            String pkgName = args.getPackageName();
12997            if (DEBUG_SD_INSTALL)
12998                Log.i(TAG, "Trying to unload pkg : " + pkgName);
12999            // Delete package internally
13000            PackageRemovedInfo outInfo = new PackageRemovedInfo();
13001            synchronized (mInstallLock) {
13002                boolean res = deletePackageLI(pkgName, null, false, null, null,
13003                        PackageManager.DELETE_KEEP_DATA, outInfo, false);
13004                if (res) {
13005                    pkgList.add(pkgName);
13006                } else {
13007                    Slog.e(TAG, "Failed to delete pkg from sdcard : " + pkgName);
13008                    failedList.add(args);
13009                }
13010            }
13011        }
13012
13013        // reader
13014        synchronized (mPackages) {
13015            // We didn't update the settings after removing each package;
13016            // write them now for all packages.
13017            mSettings.writeLPr();
13018        }
13019
13020        // We have to absolutely send UPDATED_MEDIA_STATUS only
13021        // after confirming that all the receivers processed the ordered
13022        // broadcast when packages get disabled, force a gc to clean things up.
13023        // and unload all the containers.
13024        if (pkgList.size() > 0) {
13025            sendResourcesChangedBroadcast(false, false, pkgList, uidArr,
13026                    new IIntentReceiver.Stub() {
13027                public void performReceive(Intent intent, int resultCode, String data,
13028                        Bundle extras, boolean ordered, boolean sticky,
13029                        int sendingUser) throws RemoteException {
13030                    Message msg = mHandler.obtainMessage(UPDATED_MEDIA_STATUS,
13031                            reportStatus ? 1 : 0, 1, keys);
13032                    mHandler.sendMessage(msg);
13033                }
13034            });
13035        } else {
13036            Message msg = mHandler.obtainMessage(UPDATED_MEDIA_STATUS, reportStatus ? 1 : 0, -1,
13037                    keys);
13038            mHandler.sendMessage(msg);
13039        }
13040    }
13041
13042    /** Binder call */
13043    @Override
13044    public void movePackage(final String packageName, final IPackageMoveObserver observer,
13045            final int flags) {
13046        mContext.enforceCallingOrSelfPermission(android.Manifest.permission.MOVE_PACKAGE, null);
13047        UserHandle user = new UserHandle(UserHandle.getCallingUserId());
13048        int returnCode = PackageManager.MOVE_SUCCEEDED;
13049        int currInstallFlags = 0;
13050        int newInstallFlags = 0;
13051
13052        File codeFile = null;
13053        String installerPackageName = null;
13054        String packageAbiOverride = null;
13055
13056        // reader
13057        synchronized (mPackages) {
13058            final PackageParser.Package pkg = mPackages.get(packageName);
13059            final PackageSetting ps = mSettings.mPackages.get(packageName);
13060            if (pkg == null || ps == null) {
13061                returnCode = PackageManager.MOVE_FAILED_DOESNT_EXIST;
13062            } else {
13063                // Disable moving fwd locked apps and system packages
13064                if (pkg.applicationInfo != null && isSystemApp(pkg)) {
13065                    Slog.w(TAG, "Cannot move system application");
13066                    returnCode = PackageManager.MOVE_FAILED_SYSTEM_PACKAGE;
13067                } else if (pkg.mOperationPending) {
13068                    Slog.w(TAG, "Attempt to move package which has pending operations");
13069                    returnCode = PackageManager.MOVE_FAILED_OPERATION_PENDING;
13070                } else {
13071                    // Find install location first
13072                    if ((flags & PackageManager.MOVE_EXTERNAL_MEDIA) != 0
13073                            && (flags & PackageManager.MOVE_INTERNAL) != 0) {
13074                        Slog.w(TAG, "Ambigous flags specified for move location.");
13075                        returnCode = PackageManager.MOVE_FAILED_INVALID_LOCATION;
13076                    } else {
13077                        newInstallFlags = (flags & PackageManager.MOVE_EXTERNAL_MEDIA) != 0
13078                                ? PackageManager.INSTALL_EXTERNAL : PackageManager.INSTALL_INTERNAL;
13079                        currInstallFlags = isExternal(pkg)
13080                                ? PackageManager.INSTALL_EXTERNAL : PackageManager.INSTALL_INTERNAL;
13081
13082                        if (newInstallFlags == currInstallFlags) {
13083                            Slog.w(TAG, "No move required. Trying to move to same location");
13084                            returnCode = PackageManager.MOVE_FAILED_INVALID_LOCATION;
13085                        } else {
13086                            if (isForwardLocked(pkg)) {
13087                                currInstallFlags |= PackageManager.INSTALL_FORWARD_LOCK;
13088                                newInstallFlags |= PackageManager.INSTALL_FORWARD_LOCK;
13089                            }
13090                        }
13091                    }
13092                    if (returnCode == PackageManager.MOVE_SUCCEEDED) {
13093                        pkg.mOperationPending = true;
13094                    }
13095                }
13096
13097                codeFile = new File(pkg.codePath);
13098                installerPackageName = ps.installerPackageName;
13099                packageAbiOverride = ps.cpuAbiOverrideString;
13100            }
13101        }
13102
13103        if (returnCode != PackageManager.MOVE_SUCCEEDED) {
13104            try {
13105                observer.packageMoved(packageName, returnCode);
13106            } catch (RemoteException ignored) {
13107            }
13108            return;
13109        }
13110
13111        final IPackageInstallObserver2 installObserver = new IPackageInstallObserver2.Stub() {
13112            @Override
13113            public void onUserActionRequired(Intent intent) throws RemoteException {
13114                throw new IllegalStateException();
13115            }
13116
13117            @Override
13118            public void onPackageInstalled(String basePackageName, int returnCode, String msg,
13119                    Bundle extras) throws RemoteException {
13120                Slog.d(TAG, "Install result for move: "
13121                        + PackageManager.installStatusToString(returnCode, msg));
13122
13123                // We usually have a new package now after the install, but if
13124                // we failed we need to clear the pending flag on the original
13125                // package object.
13126                synchronized (mPackages) {
13127                    final PackageParser.Package pkg = mPackages.get(packageName);
13128                    if (pkg != null) {
13129                        pkg.mOperationPending = false;
13130                    }
13131                }
13132
13133                final int status = PackageManager.installStatusToPublicStatus(returnCode);
13134                switch (status) {
13135                    case PackageInstaller.STATUS_SUCCESS:
13136                        observer.packageMoved(packageName, PackageManager.MOVE_SUCCEEDED);
13137                        break;
13138                    case PackageInstaller.STATUS_FAILURE_STORAGE:
13139                        observer.packageMoved(packageName, PackageManager.MOVE_FAILED_INSUFFICIENT_STORAGE);
13140                        break;
13141                    default:
13142                        observer.packageMoved(packageName, PackageManager.MOVE_FAILED_INTERNAL_ERROR);
13143                        break;
13144                }
13145            }
13146        };
13147
13148        // Treat a move like reinstalling an existing app, which ensures that we
13149        // process everythign uniformly, like unpacking native libraries.
13150        newInstallFlags |= PackageManager.INSTALL_REPLACE_EXISTING;
13151
13152        final Message msg = mHandler.obtainMessage(INIT_COPY);
13153        final OriginInfo origin = OriginInfo.fromExistingFile(codeFile);
13154        msg.obj = new InstallParams(origin, installObserver, newInstallFlags,
13155                installerPackageName, null, user, packageAbiOverride);
13156        mHandler.sendMessage(msg);
13157    }
13158
13159    @Override
13160    public boolean setInstallLocation(int loc) {
13161        mContext.enforceCallingOrSelfPermission(android.Manifest.permission.WRITE_SECURE_SETTINGS,
13162                null);
13163        if (getInstallLocation() == loc) {
13164            return true;
13165        }
13166        if (loc == PackageHelper.APP_INSTALL_AUTO || loc == PackageHelper.APP_INSTALL_INTERNAL
13167                || loc == PackageHelper.APP_INSTALL_EXTERNAL) {
13168            android.provider.Settings.Global.putInt(mContext.getContentResolver(),
13169                    android.provider.Settings.Global.DEFAULT_INSTALL_LOCATION, loc);
13170            return true;
13171        }
13172        return false;
13173   }
13174
13175    @Override
13176    public int getInstallLocation() {
13177        return android.provider.Settings.Global.getInt(mContext.getContentResolver(),
13178                android.provider.Settings.Global.DEFAULT_INSTALL_LOCATION,
13179                PackageHelper.APP_INSTALL_AUTO);
13180    }
13181
13182    /** Called by UserManagerService */
13183    void cleanUpUserLILPw(UserManagerService userManager, int userHandle) {
13184        mDirtyUsers.remove(userHandle);
13185        mSettings.removeUserLPw(userHandle);
13186        mPendingBroadcasts.remove(userHandle);
13187        if (mInstaller != null) {
13188            // Technically, we shouldn't be doing this with the package lock
13189            // held.  However, this is very rare, and there is already so much
13190            // other disk I/O going on, that we'll let it slide for now.
13191            mInstaller.removeUserDataDirs(userHandle);
13192        }
13193        mUserNeedsBadging.delete(userHandle);
13194        removeUnusedPackagesLILPw(userManager, userHandle);
13195    }
13196
13197    /**
13198     * We're removing userHandle and would like to remove any downloaded packages
13199     * that are no longer in use by any other user.
13200     * @param userHandle the user being removed
13201     */
13202    private void removeUnusedPackagesLILPw(UserManagerService userManager, final int userHandle) {
13203        final boolean DEBUG_CLEAN_APKS = false;
13204        int [] users = userManager.getUserIdsLPr();
13205        Iterator<PackageSetting> psit = mSettings.mPackages.values().iterator();
13206        while (psit.hasNext()) {
13207            PackageSetting ps = psit.next();
13208            if (ps.pkg == null) {
13209                continue;
13210            }
13211            final String packageName = ps.pkg.packageName;
13212            // Skip over if system app
13213            if ((ps.pkgFlags & ApplicationInfo.FLAG_SYSTEM) != 0) {
13214                continue;
13215            }
13216            if (DEBUG_CLEAN_APKS) {
13217                Slog.i(TAG, "Checking package " + packageName);
13218            }
13219            boolean keep = false;
13220            for (int i = 0; i < users.length; i++) {
13221                if (users[i] != userHandle && ps.getInstalled(users[i])) {
13222                    keep = true;
13223                    if (DEBUG_CLEAN_APKS) {
13224                        Slog.i(TAG, "  Keeping package " + packageName + " for user "
13225                                + users[i]);
13226                    }
13227                    break;
13228                }
13229            }
13230            if (!keep) {
13231                if (DEBUG_CLEAN_APKS) {
13232                    Slog.i(TAG, "  Removing package " + packageName);
13233                }
13234                mHandler.post(new Runnable() {
13235                    public void run() {
13236                        deletePackageX(packageName, userHandle, 0);
13237                    } //end run
13238                });
13239            }
13240        }
13241    }
13242
13243    /** Called by UserManagerService */
13244    void createNewUserLILPw(int userHandle, File path) {
13245        if (mInstaller != null) {
13246            mInstaller.createUserConfig(userHandle);
13247            mSettings.createNewUserLILPw(this, mInstaller, userHandle, path);
13248        }
13249    }
13250
13251    @Override
13252    public VerifierDeviceIdentity getVerifierDeviceIdentity() throws RemoteException {
13253        mContext.enforceCallingOrSelfPermission(
13254                android.Manifest.permission.PACKAGE_VERIFICATION_AGENT,
13255                "Only package verification agents can read the verifier device identity");
13256
13257        synchronized (mPackages) {
13258            return mSettings.getVerifierDeviceIdentityLPw();
13259        }
13260    }
13261
13262    @Override
13263    public void setPermissionEnforced(String permission, boolean enforced) {
13264        mContext.enforceCallingOrSelfPermission(GRANT_REVOKE_PERMISSIONS, null);
13265        if (READ_EXTERNAL_STORAGE.equals(permission)) {
13266            synchronized (mPackages) {
13267                if (mSettings.mReadExternalStorageEnforced == null
13268                        || mSettings.mReadExternalStorageEnforced != enforced) {
13269                    mSettings.mReadExternalStorageEnforced = enforced;
13270                    mSettings.writeLPr();
13271                }
13272            }
13273            // kill any non-foreground processes so we restart them and
13274            // grant/revoke the GID.
13275            final IActivityManager am = ActivityManagerNative.getDefault();
13276            if (am != null) {
13277                final long token = Binder.clearCallingIdentity();
13278                try {
13279                    am.killProcessesBelowForeground("setPermissionEnforcement");
13280                } catch (RemoteException e) {
13281                } finally {
13282                    Binder.restoreCallingIdentity(token);
13283                }
13284            }
13285        } else {
13286            throw new IllegalArgumentException("No selective enforcement for " + permission);
13287        }
13288    }
13289
13290    @Override
13291    @Deprecated
13292    public boolean isPermissionEnforced(String permission) {
13293        return true;
13294    }
13295
13296    @Override
13297    public boolean isStorageLow() {
13298        final long token = Binder.clearCallingIdentity();
13299        try {
13300            final DeviceStorageMonitorInternal
13301                    dsm = LocalServices.getService(DeviceStorageMonitorInternal.class);
13302            if (dsm != null) {
13303                return dsm.isMemoryLow();
13304            } else {
13305                return false;
13306            }
13307        } finally {
13308            Binder.restoreCallingIdentity(token);
13309        }
13310    }
13311
13312    @Override
13313    public IPackageInstaller getPackageInstaller() {
13314        return mInstallerService;
13315    }
13316
13317    private boolean userNeedsBadging(int userId) {
13318        int index = mUserNeedsBadging.indexOfKey(userId);
13319        if (index < 0) {
13320            final UserInfo userInfo;
13321            final long token = Binder.clearCallingIdentity();
13322            try {
13323                userInfo = sUserManager.getUserInfo(userId);
13324            } finally {
13325                Binder.restoreCallingIdentity(token);
13326            }
13327            final boolean b;
13328            if (userInfo != null && userInfo.isManagedProfile()) {
13329                b = true;
13330            } else {
13331                b = false;
13332            }
13333            mUserNeedsBadging.put(userId, b);
13334            return b;
13335        }
13336        return mUserNeedsBadging.valueAt(index);
13337    }
13338
13339    @Override
13340    public KeySet getKeySetByAlias(String packageName, String alias) {
13341        if (packageName == null || alias == null) {
13342            return null;
13343        }
13344        synchronized(mPackages) {
13345            final PackageParser.Package pkg = mPackages.get(packageName);
13346            if (pkg == null) {
13347                Slog.w(TAG, "KeySet requested for unknown package:" + packageName);
13348                throw new IllegalArgumentException("Unknown package: " + packageName);
13349            }
13350            KeySetManagerService ksms = mSettings.mKeySetManagerService;
13351            return new KeySet(ksms.getKeySetByAliasAndPackageNameLPr(packageName, alias));
13352        }
13353    }
13354
13355    @Override
13356    public KeySet getSigningKeySet(String packageName) {
13357        if (packageName == null) {
13358            return null;
13359        }
13360        synchronized(mPackages) {
13361            final PackageParser.Package pkg = mPackages.get(packageName);
13362            if (pkg == null) {
13363                Slog.w(TAG, "KeySet requested for unknown package:" + packageName);
13364                throw new IllegalArgumentException("Unknown package: " + packageName);
13365            }
13366            if (pkg.applicationInfo.uid != Binder.getCallingUid()
13367                    && Process.SYSTEM_UID != Binder.getCallingUid()) {
13368                throw new SecurityException("May not access signing KeySet of other apps.");
13369            }
13370            KeySetManagerService ksms = mSettings.mKeySetManagerService;
13371            return new KeySet(ksms.getSigningKeySetByPackageNameLPr(packageName));
13372        }
13373    }
13374
13375    @Override
13376    public boolean isPackageSignedByKeySet(String packageName, KeySet ks) {
13377        if (packageName == null || ks == null) {
13378            return false;
13379        }
13380        synchronized(mPackages) {
13381            final PackageParser.Package pkg = mPackages.get(packageName);
13382            if (pkg == null) {
13383                Slog.w(TAG, "KeySet requested for unknown package:" + packageName);
13384                throw new IllegalArgumentException("Unknown package: " + packageName);
13385            }
13386            IBinder ksh = ks.getToken();
13387            if (ksh instanceof KeySetHandle) {
13388                KeySetManagerService ksms = mSettings.mKeySetManagerService;
13389                return ksms.packageIsSignedByLPr(packageName, (KeySetHandle) ksh);
13390            }
13391            return false;
13392        }
13393    }
13394
13395    @Override
13396    public boolean isPackageSignedByKeySetExactly(String packageName, KeySet ks) {
13397        if (packageName == null || ks == null) {
13398            return false;
13399        }
13400        synchronized(mPackages) {
13401            final PackageParser.Package pkg = mPackages.get(packageName);
13402            if (pkg == null) {
13403                Slog.w(TAG, "KeySet requested for unknown package:" + packageName);
13404                throw new IllegalArgumentException("Unknown package: " + packageName);
13405            }
13406            IBinder ksh = ks.getToken();
13407            if (ksh instanceof KeySetHandle) {
13408                KeySetManagerService ksms = mSettings.mKeySetManagerService;
13409                return ksms.packageIsSignedByExactlyLPr(packageName, (KeySetHandle) ksh);
13410            }
13411            return false;
13412        }
13413    }
13414
13415    public void getUsageStatsIfNoPackageUsageInfo() {
13416        if (!mPackageUsage.isHistoricalPackageUsageAvailable()) {
13417            UsageStatsManager usm = (UsageStatsManager) mContext.getSystemService(Context.USAGE_STATS_SERVICE);
13418            if (usm == null) {
13419                throw new IllegalStateException("UsageStatsManager must be initialized");
13420            }
13421            long now = System.currentTimeMillis();
13422            Map<String, UsageStats> stats = usm.queryAndAggregateUsageStats(now - mDexOptLRUThresholdInMills, now);
13423            for (Map.Entry<String, UsageStats> entry : stats.entrySet()) {
13424                String packageName = entry.getKey();
13425                PackageParser.Package pkg = mPackages.get(packageName);
13426                if (pkg == null) {
13427                    continue;
13428                }
13429                UsageStats usage = entry.getValue();
13430                pkg.mLastPackageUsageTimeInMills = usage.getLastTimeUsed();
13431                mPackageUsage.mIsHistoricalPackageUsageAvailable = true;
13432            }
13433        }
13434    }
13435}
13436